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TESTB060 Release 2023-10-16
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 c5 2.e4

(...)

2...a5 3.bc5+/- e5 4.Nf3 Bc5 5.Bc4 Nc6 6.0-0 Nf6 7.d3 h6 8.c3 0-0 9.d4 Bd6 10.Nbd2 b6 11.Rb1 Ba6 12.Ba6 Ra6 13.Nc4 Qc7 14.Qd3 Rfa8 15.d5 Nd8 16.Be3+- Bc5 17.Bc5 Qc5 18.Nfe5 d6 19.Nf3 b5 20.Ne3 Rb6 21.Nd4 Rab8 22.Nef5 Kh7? 23.Rbc1 g6 24.Ne7 Qc4 25.Qf3 Kg7 26.Rfe1 Nd7 27.Re3 Ne5+/- 28.Qh3 R6b7?? 29.Nef5! gf5 30.Nf5 Kg8 31.Rg3 Ng6 32.Qh6 (32.Qh6 Ne6 33.de6 Qf1 34.Rf1 fe6 35.Qg6 Kh8 36.Rh3 Rh7 37.Rh7#; 32.Nh6?! Kf8+=) 1–0. Dimitriadis,Konstantinos (2340) – Gimnopoulos,Lazaros (2160), GRE–chT Athens (2), 1996.

2...cb4 (--> 1.b4 c5 2.e4 cb4)

2…h6 3.a4 (3.bc5 e5+=) 3...h5?? (better is 3...cb4 4.Nf3 Nf6-/+) 4.b5 (4.bc5 Qa5+/-) 4...h4 (better is 4...Nf6 5.Nc3 d5 6.ed5 Nd5+=) 5.g4 (5.Nc3+/-) 5...f5?? (better is 5...hg3 6.fg3 d5+=) 6.gf5 c4? (6...d5 7.d3+/-) 7.f3 (better is 7.Nc3 Qc7 8.Qe2+-) 7...d5 8.d4 (8.Nc3 Nf6+-) 8…cd3+/- (8...cd3 9.Qd3 de4 10.fe4 e6 11.Qd8 Kd8 12.fe6 Be6+/-) 0–1. Daimiel Bescos,E (1905) – Capellades Subirana,M (2245), Sant Adria ESP, 9th Open, 2014. (=1.e4 c5 2.b4?? h6)

2…Na6

3.Ba6 ba6 4.bc5 Qa5 +/-.

3.Ba6 ba6 4.bc5 Bb7 5.Nc3 Rc8 6.Rb1 Ba8 7.Qe2 Qa5 8.Rb3 e5 9.Nf3 Bc5 10.Ne5 Nf6 11.Nc4 Qd8 12.e5 0-0? (better is 12...Nd5 13.Ne4 Nf4+-) 13.ef6 Re8 14.Ne3 d5 15.fg7 (better is 15.Qg4!? Qf6 16.Bb2 d4+-) 15...d4 16.0-0 Rc6 17.Qh5 de3 18.de3 Rg6 19.e4 (19.Qc5?? Rg2 20.Kh1 Rh2 21.Kh2 Qh4 22.Kg1 Qh1) 19...Bd4 20.Kh1 Kg7 21.f3 Re5 22.Qh3 Qa5 (22...Rc5 23.Rd1 Qf6 24.Ne2 Rc2 25.Ng3 (25.Nd4?! Qd4 26.Bb2 Qb2 27.Rb2 Rb2+-; 25.Rd4 Qd4 26.Bb2 Qb2 27.Rb2 Rb2=) 25...Rg3 26.Qg3 Qg6 27.Rb8 Qg3 28.hg3+-) 23.Qc8 (23.Ne2 Rh5 24.Qc8 Rc6+-) 23...Rh5 (23...Bc6 24.Bd2 Rb5+-) 24.g4 Rc5 25.Qa8 Rc3 26.Rb8 Rb6 (26...Kf6 27.Bd2 Qc5+-) 27.Rg8 Kf6 28.Qd8 Ke5 29.Qe7 (29.Qe7 Re6 30.Rg5 f5 31.Rf5) 1–0. Eisele,Steffen (2160) – Sturm,Bernhard (2220), Oberliga Wuert, 1999. (=1.e4 c5 2.b4)

3.bc5 Nc5+= 4.f3 d6 5.d4 Nd7 6.Bb5?? (6.Nd2 e5=) 6...g6?? (6...Qa5 7.Nd2 Qb5 8.Ne2-+) 7.Be3?? (7.Ne2 Bg7+=) 7...Bg7?? (better is 7...Qa5 8.Nc3 Qc3 9.Kf2 Bg7-+) 8.c3 Ngf6 9.Nd2 0-0 10.Qc2 a6 11.Bd3 d5 12.e5 Ne8 13.h4 e6 (13...b5!?=) 14.h5+/- Nc7 15.g4 Nb5 16.a4 Qa5 17.f4 Nc3? 18.f5?? Nb6? 19.f6+- Bh8 20.hg6 Rd8 21.gf7 Kf7 22.Rh7 Kg8 23.f7 Kf8 24.Rh8 Ke7+- 25.Bg5 Kd7 26.Rd8 Kc7 27.f8Q Nba4 28.Qd6 1–0. Banciu,Alexandra_Ioana – Lazar,Irina_Maria, Calimanesti ROM, Ch U12 (g), 2014. (=1.e4 c5 2.b4)

2...Qb6

3.bc5 Qc5 4.d4 Qc7 5.Nf3 Nf6 6.Bd3 d6 7.0-0 Bg4 8.Be3 g6 9.Nbd2 Bg7 10.c4 0-0 11.Rb1 Nc6 12.h3 Bd7 13.Nb3 Nb4 14.e5 de5 (better is 14...Ne8!? 15.ed6 Nd6=) 15.de5+/- Nd3 16.ef6 (worse is 16.Qd3 Bf5 17.Qe2 Nd7-/+ (worse is 17...Bb1 18.ef6 Bf6 19.Rb1+=)) 16...ef6 17.Qd3 Bf5 18.Qe2 Bb1 19.Rb1 Rfe8 20.c5 Qc6 21.Na5 Re3?? (better is 21...Qc5 22.Nb7 Qd5+/-) 22.Qe3+- (22.fe3?! Qc5 23.Nb7 Qe7+-) 22...Qa4 23.Nb7 Qa2 24.Qb3 Qe2 (24...Qb3 25.Rb3 a5+-) 25.Re1 Qa6 26.Re7 Rf8 27.Nd6 h5 (27...h6 28.Rf7 Kh7 29.Re7+-) 28.Nf7 Kh7 29.Qb7 Qa1 30.Kh2 Rg8 31.Qa7 Qc1 32.Qc7 1–0. Hurt,E – Scott,Herman B, USA Midsouth corr, 1978. (=1.e4 c5 2.b4)

3.bc5 Qc5 4.Nf3 Nc6 (4...Qc6 5.e5+=) 5.Ba3 (5.d4 Qa5 6.Bd2 Qb6+/-) 5...Qa5 6.Bc4 (6.c3 d5 7.Bb4 Nb4 8.cb4 Qb4=) 6...Nf6 7.Qe2 d6 8.h3 g6 (8...h6 9.c3=) 9.Bb2 Bg7 10.0-0 (10.Bc3 Qc7=) 10...0-0 (10...Bd7 11.e5 Ne5 12.Ne5 de5 13.Bc3=) 11.d3 (11.Bc3 Qb6=) 11...a6 (11...b5 12.Bc3 b4 13.Nd4 Nd4 14.Bd4=) 12.a4 (12.Bc3 Qh5=) 12...Qc7 (12...Qb6 13.Bc3+=) 13.e5 (13.Nbd2!?+=) 13...de5= 14.Ne5 Ne5 (better is 14...Ng4! 15.Ng4 Bg4 16.hg4 Bb2+=) 15.Be5= Qd7 (15...Qc6 16.a5+=) 16.Nc3 (16.Nd2 Qc6+=) 16...e6 17.a5 Ne8 18.Bg7 Ng7 19.Na4 (19.Qe5 f6 20.Qh2 Rf7+/-) 19...Qc7 20.Rfb1 (20.Nb6 Rb8+/-) 20...Bd7= (20...Qa5? 21.Nb6 Qc5 22.Na8+-) 21.Nb6 Rab8 22.Nd7 Qd7 23.Rb6 Nf5 24.Rab1 Nd4 25.Qe4 Nc2? 26.Ba6 Nd4 27.Bb7 Nf5?? 28.a6 Nd6 29.Qd4 Rbd8 30.a7 Nb7 31.Qd7 Rd7 32.Rb7 Rd3 33.Rb8 (33.Rb8 Ra3 34.Rf8 Kf8 35.Rb8 Ke7 36.a8R Ra8 37.Ra8+-) 1–0. Dragicevic,Domagoj (1855) – Horwood,Melba (1635), AUS–ch reserves, 2001. (=1.e4 c5 2.b4)

2...Qc7

3.bc5 Qc5 4.d4 Qb4 5.c3 Qb6 6.Na3 Nf6 7.Nc4 Qc7 8.Qf3 d5 9.Bf4 de4? (better is 9...Qd8 10.ed5 Qd5+=) 10.Qg3+- (10.Bc7?! ef3 11.Nf3 Nd5 12.Bb8 Rb8+=) 10...Qc6 11.Bb8 Rb8? (11...e3 12.fe3 Be6+-) 12.Qb8 b5 (12...Nd7 13.Qa7 b5+-) 13.Nd6! Qd6 (13...Qd6 14.Qc8 Mate attack; 13...ed6 14.Bb5 Combination) 14.Bb5 (14.Qc8 Qd8 15.Bb5 Nd7 16.Bd7) 14...Nd7 (14...Kd8 15.Qa7 Nd5+-) 15.Qc8 1–0. Chaves,Jorge Antonio (2150) – Villaboim,Nelson, Naval CC Magistral 4th, 1997. (=1.e4 c5 2.b4)

3.bc5 Qc5 4.d4 Qc7 5.Bd3 g6 (5...e5 6.de5 Nc6 7.Nc3+=) 6.c4 (6.Ne2 d6+=) 6...Bg7 (6...Nc6 7.Nf3+=) 7.Ne2 a6 (7...Nc6 8.Be3+=) 8.Nbc3 d6 (8...Nc6 9.Nd5 Qd8 10.Bf4+-) 9.Rb1 (9.Nd5 Qc6+-) 9...e6 (9...Nf6 10.Qa4 Nbd7 11.f4+-) 10.0-0 (10.Qa4 Bd7 11.Nb5 Bb5 12.cb5 Qd7+-) 10...Nd7 (10...Nc6 11.Be3+-) 11.f4 Ne7 (11...b6 12.Ba3+-) 12.e5 de5 (12...Nf5 13.Qa4+-) 13.fe5 0-0 (13...f6 14.Nf4 Qc6 15.Qf3+-) 14.Ne4 (14.Ba3 Ne5 15.de5 Be5+-) 14...f5 (14...b5 15.Ba3 bc4 16.Bc4 (16.Be7?! cd3 17.Nf4 Qa7 18.Bf8 Qd4 19.Kh1 Bf8+-) 16...Ne5 17.de5 Qc4 18.Nf6 Bf6 19.ef6+- (19.Rf6?! Ra7=)) 15.Ng5+- Nb6? (15...Ne5 16.de5 Qe5 17.Qb3+-) 16.Ba3 (better 16.Qb3!? h6 17.Ne6 Be6 18.Qb6 Qb6 19.Rb6 Nc6+-) 16...h6 (16...Bh6 17.Bd6 Qd8 18.Nh3 Be3 19.Kh1+-) 17.Nh3 Qd8 (better 17...Rf7 18.Bd6 Qc6+-) 18.Be7 Qe7 19.Rb6 (19.Nhf4 Be5 20.Ng6 Bd4 21.Kh1 Qd8 22.Nf8 Kf8 23.Bf5 ef5 24.Nd4 Nc4+-) 19...Be5 20.de5 (better 20.Rb3!? Bd4 21.Nd4+-) 20...Qc5 21.Kh1 (21.Nf2 Qb6 22.Qc1 Kg7+-) 21...Qb6+- 22.Qe1 (22.Qc1!? g5 23.c5+-) 22...Qe3+= 23.Nhf4 (23.Qc3 b6+-) 23...g5 24.Rf3 Qe5? (better 24...Qc5 25.Ng6 Rd8=) 25.Ng6+- Qg7 (25...Qc5 26.Nf8 Qf8 27.Nd4+-) 26.Nf8 Qf8 27.Qa5 (27.Qd2 Qd6+-) 27...Qd6 (27...Bd7 28.Qe5+-) 28.c5 Qd5 (28...Qe5 29.Qb6+-) 29.Qc3 g4 (29...Qd8 30.Nd4 b5 31.cb6 Qb6 32.Re3+-) 30.Nf4 (better 30.Rf5! ef5 31.Bc4 Be6 32.Bd5 Bd5+-) 30...Qd8 (30...Qd7 31.Re3 Qg7 32.Qe1+-) 31.Re3 Kf7 (31...Qg5 32.Ne6 Be6 33.Re6 Rd8+-) 32.Nh5 (better 32.Bc4 Qf6 33.Qd2+-) 32...Qh4?? (32...Qg5 33.Bf5 Qh5+= (33...Qf5 34.Qg7 Ke8 35.Nf6 Qf6 36.Qf6 b5 37.cb6 Bd7 38.Re1 Rb8 39.Rf1 Bb5 40.Qe6 Kd8 41.Rf8 Be8 42.Re8; worse 33...ef5 34.Qc4 Kf8 35.Qd4+-)) 33.Qg7+- Ke8 34.Nf6 (34.Qg8 Ke7 35.Nf4 Qf6 36.Nd5 Kd7 37.Qh7 Qg7 38.Qg7 Kc6 39.Qc7 Kd5 40.Qd6) 34...Kd8 35.Qf8 (35.Qf8 Kc7 36.Qd6) 1–0. Duailibe,Ricardo Miguel (1955) – Turine,Oswaldo (1855), Aberto do Brasil – Cidade de Campo Gran, 2015. (=1.e4 c5 2.b4 Qc7)

3.bc5 Qc5 4.d4 Qc7 5.Nf3 Nf6 6.Bd3 d6 7.Bd2 Nc6 8.h3 a6 9.a4 b6 10.0-0 e6 11.Re1 Be7 12.c3 e5 (12...Bb7 13.Bf4=) 13.Na3 Na5 14.c4 0-0 15.Bc3 (15.Ba5 ba5 16.Rb1 Be6+=) 15...Nh5 (15...Nc6 16.Nc2=) 16.de5+= Nf4 17.ed6 Qd6 18.Re3 (better 18.Ba5 ba5 19.Bf1+=) 18...Bh3?? (better 18...Qg6 19.Ne1 Bc5=+) 19.e5 (19.gh3 Qg6 20.Kf1 Qg2 21.Ke1 Rfd8=+) 19...Qh6 20.gh3 Qh3 (20...Nh3!? 21.Kf1 Nf4+-) 21.Ne1+- Qh6 (21...Qh4 22.Ba5 ba5 23.Ng2 Ng2 24.Kg2 Qg5 25.Rg3 Qe5 26.Nc2+-) 22.Ba5 ba5 23.Qg4 Bc5 24.Rf3 Nd3 (better 24...Bd4 25.Qf4 Qf4 26.Rf4 Ba1+-) 25.Nd3 (worse 25.Rd3 Rae8 26.Rd5 Re6+-) 25...Ba3 26.Ra3 Rab8 27.Ra1 Rb6 28.Nf4 Rfb8 (28...f5 29.Nd5 g6 30.Rh3 fg4 31.Rh6+-) 29.Kg2 (29.Rh3 Qc6 30.Nd5 R6b7+-) 29...Qc6 (29...R6b7 30.Nd5 Qe6 31.Nf6 Kh8 32.Qe6 fe6 33.Ne4+-) 30.Nh5 Qh6 (30...Qg6 31.Rg3 Qg4 32.Rg4 Rg6 33.Rg6 fg6+-) 31.Nf6 Kh8 (31...Rf6 32.Rf6 g6 33.e6+-) 32.Rh1 (32.Rh1 Qh1 33.Kh1+-) 1–0. Surtmann,Leopold (1760) – Koenig,Gerhard, Hoersching Austria, Osterwoche, 2013. (=1.e4 c5 2.b4 Qc7)

2…a6

3.bc5 e5

4.Ba3 Nf6

5.Qe2!?+=.

5.Nf3 Nc6 6.Bc4 Qa5 7.0-0 (7.Ng5 Nd8=) 7...Bc5=+ 8.Bc5 Qc5 9.Bb3 0-0 10.Re1 Nd4 11.Nd4 Qd4 12.c3 Qb6 13.d4 d6 14.Nd2 Bg4 (worse 14...ed4 15.Nc4 Qc7 A) 16.cd4?! b5 17.Ne3 Be6+= (17...Ne4? 18.Nd5 Qd8 19.Re4+-); B) 16.Qd4+/-) 15.Nf3 (15.f3 Bd7= (worse 15...ed4 16.Nc4 Qc7 17.fg4+/-)) 15...Bf3 16.Qf3 ed4 17.cd4 Qd4 18.Rad1 Qe5 19.Qe3 Rae8 20.f4? (20.f3 b5=+) 20...Qe7 (better 20...Qe4!? 21.Qe4 Re4 22.Re4 Ne4-/+) 21.Qd3 (21.Qb6 Rd8= (21...Ne4? 22.Bd5+-)) 21...Nd7 (21...Rd8 22.a4=+) 22.h3 (22.Qd6!? Nc5 23.Qe7 Re7 24.Rd4+=) 22...Nc5=+ 23.Qe3 (better 23.Qd6 Qd6 24.Rd6 Re4 25.Re4 Ne4 26.Rd7=+) 23...Ne4?? (better 23...Qe4 24.Qd2 Nb3 25.ab3 Qc6-/+) 24.Bd5+- g6 25.Be4 Kg7? (better 25...Qf6+-) 26.Qc3 Qf6 27.Qd3 (27.Qf6 Kf6 28.Rd6 Kg7+-) 27...Rd8 (27...Re7 28.Bf3 (28.Qd6 Qd6 29.Rd6 f5-/+) 28...Re1 29.Re1+-) 28.Bf3 (28.Bb7 Qf4 29.Re4 Qg5+-) 28...d5 (28...Rd7 29.Re4+-) 29.Rf1 (29.Bd5 b5+-) 29...d4 (29...Qf4 30.Bd5 Qe5 31.Rfe1+-) 30.Kh1 (30.Bb7 Rd6+-) 30...Rd6 (30...b5!?+/-) 31.Bb7+- Rfd8 (31...Rb8 32.Be4+-) 32.Be4 h5 (32...Re8 33.f5 Qe5 34.Qa3+-) 33.Qf3 h4 34.Bd3 a5 35.Qf2 a4 36.Qg1 (36.Qd2 Ra8+-) 36...a3 (36...Rb6 37.f5 g5 38.Rb1+-) 37.Qf2 (37.f5 g5+-) 37...Rd5 (37...Rb6+-) 38.Qg1 Rf5?? (38...R5d6 39.f5 g5 40.Be4+-) 39.Qf2 (better 39.Bf5 Qf5 40.Rd4+-) 39...Rfd5 40.Qf3 R8d6 (40...Rc5+-) 41.Qf2?? (better 41.Be4 Ra5 42.f5+-) 41...Rf5?? (41...Rd8 42.Qc2 Ra5+-) 42.Bf5+- Qf5 43.Qh4 (43.Rd4 Re6+-) 43...Qf6 (43...Rd7 44.Rf3 Qc2 45.Re1+-) 44.Qf2 Re6 45.Rd2 (45.Rd4 Rb6+-) 45...Re4 46.Rfd1 (46.Rd3 Qd6+-) 46...d3 (46...Rf4 47.Qg1+-) 47.Qg1 (47.Rd3 Rf4 48.Qg3 Ra4+-) 47...Rf4 48.Rd3 Rf5 (48...Qb2 49.R1d2 Qf6 50.Qe3+- (50.Ra3?! Rf1 51.Rad3 Rg1 52.Kg1 Qa1 53.Kh2 Qe5 54.g3 f5+-)) 49.R3d2 (49.Ra3 Rf2+-) 49...Rg5 (49...Qc3 50.Rd6+-) 50.Rf2 (better 50.Qa7+-) 50...Rh5 (50...Qe5+-) 51.Rf6 Rh3 (51...Re5 52.Rdd6 Kf8 53.Qa7 Re1 54.Kh2 Re7 55.Rd8 Kg7 56.Qe7 Kh6 57.Rh8 Kg7 58.Rf7 Kh8 59.Qd8) 52.gh3 Kf6 53.Qg2 (53.Qd4 Kf5 54.Rf1 Kg5 55.h4 Kh5 56.Rg1 f6 57.Qg4 Kh6 58.Qg6) 53...g5 54.Qf2 (54.Rd6 Ke7 55.Qd5 Kf8 56.Rd7 Kg7 57.Qf7 Kh6 58.Rd6) 54...Kg7 (54...Ke6 55.Qe3 Kf5 56.Rd5 Kg6 57.Rg5 Kh6 58.Qg3 f5 59.Qh4) 55.Rf1 (55.Rd7 Kh6 56.Qf7 g4 57.Qf6 Kh5 58.Rd5) 55...f6 56.Qf5 (56.Qf6 Kh7 57.Qe7 Kg6 58.Rf6 Kh5 59.Qh7) 56...Kf7 (56...Kf8 57.Qf6 Ke8 58.Qd6 g4 59.Rf8) 57.Qf6 Ke8 58.Qf5 (58.Qd6 g4 59.Rf8) 58...Kd8 (58...Ke7 59.Rd1 Ke8 60.Rd7 g4 61.Qf7) 59.Qg5 (59.Qh7 Ke8 60.Qg7 g4 61.Rf8) 59…Kc7 (59...Kc7 60.Rf7 Kd6 61.Rf6 Kd7 62.Qg7 Ke8 63.Rf8). zsolti_83 (2385) - Gnojnyj (2545), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4)

5.Nf3 Nc6 6.Bd3 Qa5= 7.0-0 Bc5 8.Bc5 Qc5 9.c3 0-0 (9...d5 10.Re1=+) 10.Bc2= d5 11.d4 ed4 12.cd4 Qe7 13.e5 Ne4 14.Nbd2 f5 15.ef6 Nf6 (worse 15...Rf6 16.Re1 Bf5 17.Nh4+/-) 16.Ne5 (better 16.Bd3!?=) 16...Ne5 17.de5 Qe5 18.Re1 Qh5 (18...Qf4 19.Nf3-/+) 19.Qh5=+ Nh5 20.Bb3 Nf6 (20...Rd8 21.Re5 Nf6 22.Ne4 Ne4 23.Rd5=+) 21.Nf3 (better 21.Ne4! Be6 22.Nf6 Rf6 23.Re6 Re6 24.Bd5=) 21...Bg4-/+ 22.Nd4 Rad8 23.h3 Bd7 24.Rac1 Bc6 (better 24...Rfe8=+) 25.Nc6+/- bc6 26.Rc6 Kh8 27.Rec1 (27.Ra6 d4+/-) 27...h6 28.Rc7 (better 28.Ra6!? d4 29.Re6+/-) 28...d4= 29.Ra7 Rd7 (29...d3 30.Ra6 d2 31.Rf1=+) 30.Rcc7 (better 30.Rd7!? Nd7 31.Rd1+/-) 30...Rc7= 31.Rc7 Rd8 32.Rc1 d3 33.Rd1 d2 34.f3 Ne8 (34...Nh5!?=) 35.Kf2+/- Nc7 (35...Nd6 36.Ke2+/- (worse 36.Rd2 Ne4 37.fe4 Rd2 38.Kf3 g5=+)) 36.Ke2 Nb5 37.Rd2 Nc3 38.Ke1 Re8 39.Kf2 Nb5 (39...a5 40.Bf7 Rb8 41.Ke3+/-) 40.Kg1 (40.a4 Nc3+-) 40...Rf8 (40...Rc8 41.a4 Nc3 42.Rd7+-) 41.Rd5 (41.a4 Nc3+-) 41...Nc7 (41...Rc8 42.a4 Nc3 43.Rd7+-) 42.Rd6 (42.Rc5 Nb5+-) 42...Nb5 (42...Ra8 43.Rd7 Rc8 44.Kf2+-) 43.Rc6 (better 43.Ra6 Nd4 44.Bd5+-) 43...Nc3?? (better 43...Rf6 44.Rc8 Kh7+-) 44.Rc3 a5 (44...Kh7 45.Rc7+-) 45.Rc2 (45.Rc5 Ra8+-) 45...a4 (45...g5 46.Rc6+-) 46.Ba4 h5 (46...Ra8 47.Bb3+-) 47.Bb3 (47.Rc5!? g6+-) 47...Kh7 48.Rc4 Kh6 49.g4 (49.a4 Rb8 50.Rc6 Kg5+-) 49...g6 (49...Rf3 50.Rc6 Kg5 51.Rc5 Kf4 52.Rh5+-) 50.gh5 Re8 (50...Kh5 51.f4+-) 51.Kg2 (51.hg6 Kg6 52.Kf2 Rh8+-) 51...Kg5 (51...gh5 52.a4+-) 52.Kg3 (52.Rc5 Kh6+-) 52...Kh6 (52...Kh5 53.Rh4 Kg5 54.f4 Kf5 55.Bc2 Kf6 56.Rg4+-) 53.h4 (better 53.hg6 Kg6 54.h4+-) 53...g5 (53...gh5 54.Rc6 Kg7 55.Rc5+-) 54.hg5 (better 54.Rc6 Kh7 55.hg5 Rd8 56.Bc2 Kg8+-) 54...Kg5 55.Rc6 Rg8 (55...Kf5+-) 56.Rc5 (56.Bg8 Kf5 57.h6 Ke5 58.h7 Kd4 59.h8Q Ke3 60.Rc2 Kd3 61.Qc3) 56...Kh6 57.Kf2 (57.Bg8 Kg7 58.Bc4 Kf6 59.h6 Ke7 60.h7 Kd6 61.Rd5 Kc6 62.f4 Kc7 63.h8Q Kb7 64.Rd7 Kc6 65.Qc8 Kb6 66.Qc7) 57...Kh7 (57...Rb8 58.f4+-) 58.Rc4 (58.Bg8 Kg8 59.Rg5 Kh7 60.f4 Kh6 61.Rg6 Kh5 62.Rf6 Kg4 63.a4 Kh4 64.Kf3 Kh5 65.a5 Kh4 66.Rh6) 58...Rh8 59.Rf4 (59.Rc6 Kg7 60.Rg6 Kh7 61.Bg8 Rg8 62.Rg8 Kg8+-) 59...Kg7 (59...Rb8 60.Bf7+-) 60.Rg4 Kf8 (60...Kf8 61.Rg8! Rg8 62.Bg8 Kg8+-). zsolti_83 (2370) - Gnojnyj (2555), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4)

5.Nf3 Nc6 6.Qe2!?+=.

5.f4 Ne4= 6.Qe2 (6.fe5 Qh4 7.Ke2 Qf2 8.Kd3 Qf5-+) 6...Qh4 7.g3 Ng3 8.Qe5 Be7 9.hg3 Qh1 10.Kf2? (10.Qg7 Rf8 11.Qd4 Nc6-/+) 10...Nc6 (10...Qh6 11.Nf3-+) 11.Qe3? (11.Qg7!? Rf8 12.Nf3=+) 11...Qd5 (11...0-0 12.Bg2 Qh5 13.Nc3-+) 12.Bg2 Qd4 13.Nc3 Qe3 14.Ke3 0-0 (14...b5 15.Nd5 Kd8 16.Nf3-/+) 15.d4 b6 16.cb6?? (better 16.d5 Re8 17.Kd3=) 16...Ba3-+ 17.Rb1 Bb7 18.Kd3 Na5 (better 18...Rfe8!? 19.Bf3-+) 19.Bb7 Nb7 20.Nd5 Bd6 21.c4 Rac8 22.c5 Bc5! 23.dc5 Nc5 24.Kd4 Rfe8 25.Nf3 Ne6 26.Kd3 Rb8 (better 26...Kf8-+) 27.Nc7?? (better 27.Nh4-/+) 27...Nc7-+ 28.b7 (28.Ne5 f6 29.Nc4 Nb5-+) 28...Ne6 29.Ng5 (29.Kc4 Nd8-+) 29...Nc5 30.Kc4 Nb7 31.Kd5 (31.Kd4 Nd6 32.Rb8 Nf5 33.Kd3 Rb8-+) 31...h6 (better 31...Re2 32.Ne4 Ra2 33.g4-+) 32.Rh1 (32.Nf3 Re3 33.Rb3 Rb3 34.ab3 Na5-+) 32...hg5 33.f5 Nd8 (33...Re2 34.Rd1-+) 34.f6 gf6 35.Kd6 Kg7 36.Kc7 Ne6 37.Kd7 Rb7 (37...Rbc8 38.Rh7 Kh7 39.g4 Red8 40.Ke7 Kg6 41.a3 Rc7) 38.Kd6 (38.Ke8 f5 39.a4-+) 38...Rc7 (38...Rd8 39.Kc6 Rc7 40.Kb6 Rb8 41.Ka5 Nc5 42.Rh7 Kh7 43.a4 Rc6 44.g4 Nb3) 39.Kd5 Rd8 (39...Rc3 40.Ke4 Nf4 41.Kf5 Re5 42.Kg4 Kg6 43.Rh6 Kh6 44.gf4 f5) 40.Ke4 Rcd7 (40...Rc3 41.Rh7 Kh7 42.Kf5 Kg7 43.Kg4 Rd4 44.Kh3 Nf4 45.Kg4 Kg6 46.gf4 Rf4) 41.Kf5 (41.Re1 Rd3 42.Kf5 Rg3 43.Rd1 Nd4 44.Rd4 Rd4 45.a3 Rf3) 41...Re7 (41...Rd5 42.Ke4 f5 43.Ke3 Rd2 44.Rh7 Kh7 45.a3 R8d3) 42.Kg4 Rd5 (42...f5 43.Kf5 Nd4 44.Kg5 Rd5 45.Kf4 Rf5 46.Kg4 Re4 47.Kh3 Rh5 48.Kg2 Re2 49.Kg1 Rh1 50.Kh1 Nf3 51.a3 Rh2) 43.Kh3 Rd4 (43...g4 44.Kg4 Rd4 45.Kf3 Ng5 46.Kf2 Rd2 47.Kf1 Nf3 48.Rh7 Kh7 49.a3 Re1) 44.Kg2 Rd3 (44...Rd2 45.Kf3 f5 46.Ke3 Red7 47.Rh7 Kh7 48.a3 R7d3) 45.Rd1 Rg3! 46.Kg3 Nf4 47.Kh2 (47.Rf1 f5-+) 47…Re3 0-1. zsolti_83 (2360) - Gnojnyj (2570), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4)

4.d4 ed4=

5.Ba3 Nc6=+ 6.Nf3 Nf6 7.Nd4 Ne4 The isolani on c5 becomes a target 8.Nc6 (8.Qe2 Qa5 9.c3 Nd4 10.Qe4 Ne6=+) 8...bc6 (8...dc6 9.Qe2 Qe7-/+) 9.Bd3 (9.Qe2 Qe7-/+) 9...Qa5 (better 9...Qf6!? 10.Be4 Qa1-+) 10.c3-/+ Nc5 (worse 10...Nc3 11.Qd2 Rb8 12.0-0 Rb1 13.Rfb1 Qa3 14.Rb3+/-) 11.0-0 Nd3 12.Re1?? (better 12.Bf8 Kf8 13.Qd3=+) 12...Ne1-+ 13.Qe1 Kd8 14.Bc1 (14.Bb4 Qd5-+) 14...Bd6 (14...Bc5 15.Bg5 f6 16.Bd2-+) 15.Qd2 (15.Be3 Rb8-+) 15...Re8 16.g3 Qe5 17.Kg2 (17.a3 Qe1 18.Kg2 Qe4 19.f3 Qe2 20.Qe2 Re2 21.Kf1 Rh2-+) 17...Bb7 (better 17...Qe4 18.f3 Qe2 19.Qe2 Re2 20.Kf1 Rh2 21.Nd2 Bg3 22.Ne4-+) 18.Qb2 (18.Qg5 Kc7 19.Qe5 Re5 20.Be3-+) 18...c5 (better 18...Qe4 19.f3 Qe1 20.Qb6 Kc8-+) 19.Qb7 Qe4 20.Qe4 Re4 21.Nd2 Re1 22.Nf3 Rd1?? (better 22...Re2-+) 23.Bg5+- f6 24.Rd1 fg5 (24...Kc7 25.Be3+-) 25.Rd6 Kc7 26.Rd1 (26.Rd5 g4 27.Ne5 d6 28.Ng4 Rb8+-) 26...g4 (26...h6 27.h4 gh4 28.Nh4+-) 27.Nd2 (better 27.Ne5!? Rd8+-) 27...d5 28.c4 (28.Nf1!? Rd8 29.Ne3 d4 30.cd4 Rd4 31.Rd4 cd4 32.Ng4 Kd6+-) 28...d4 29.Nb3 Kc6 (29...Kd6 30.Nd4! cd4 31.Rd4 Kc5 32.Rg4+-) 30.Nd4! cd4 31.Rd4 h5 32.Rg4?? (better 32.Rd5 Rh8 33.Rg5+/-) 32...hg4-+ 33.h3 Kc5 (33...gh3 34.Kh3 Rd8 35.Kh4-+) 34.hg4 Kc4 35.f4 Kb4 36.f5 Ka3 37.g5 a5 38.Kf3 Ra7 39.Kf4 Ra6 40.g6 (40.f6 Rf6! 41.gf6 gf6-+) 40...Rf6 (40...a4 41.Kg5 Ka2 42.Kh5-+) 41.Kg5 (41.g4 a4 42.g5 Rg6 43.fg6 Ka2-+) 41...Rf8 (better 41...Ka2!? 42.g4 a4 43.Kf4-+) 42.g4 Rc8 (better 42...Ka2 43.Kh5 a4 44.Kh4-+) 43.Kf4 Rc5 (43...Ka2 44.f6-+) 44.g5 Rc4 45.Ke5 Rc5 46.Ke6?? (46.Kf4 a4 47.f6-+) 46...Rb5 47.Kf7 Rb6 (better 47...Rf5 48.Kg8 Rg5 49.Kg7 Ka2-+) 48.Kg7+- Rb7 (48...Ka2 49.Kh6 a4+-) 49.Kh6 Rb8 50.f6 (better 50.g7 Ka2 51.f6 a4+-) 50...Rb6 (50...Rh8 51.Kg7 Rh2+-) 51.f7 (better 51.g7 a4 52.g8Q Kb4 53.Qf8 Kc4+-) 51...Rb7 52.g7 (better 52.f8Q Ka2 53.Qa8+-) 52...Rb3 53.g6 (53.ab3 a4 54.f8Q Kb2 55.Qf2 Ka3 56.g8Q ab3 57.Qa8 Kb4 58.Qd4 Kb5 59.Qaa4) 53...Rh3+- 54.Kg5 Rg3 (54...Rg3 55.Kh4 Rg6 56.f8Q Kb2 57.Qf2 Ka1 58.Qd4 Kb1 59.Qd3 Ka2 60.Qg6 Kb3 61.g8Q Kc3 62.Q8g7 Kc4 63.Qc6 Kd3 64.Qgc3 Ke2 65.Q6f3). zsolti_83 (2340) - Gnojnyj (2585), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4)

5.Qd4 Nc6 6.Qa4 Bc5=+ 7.Qc4? (better 7.f4!?=+) 7...Bf2! 8.Kf2 Qf6 9.Nf3 Qa1 10.Bd3?? (10.Qb3 Nge7-+) 10...Ne5 (better 10...Qb1 11.e5 b5-+) 11.Be3?? (better 11.Qb3 Nd3 12.cd3-+) 11...Nc4 12.Bc4 Qf6 13.Nbd2 h6 0-1. Rook_blunder (2555) - alifie (2550), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4)

5.Qd4 Nc6 6.Qc3 d5 7.cd6 Bd6=.

2...b6

3.a3 cb4 4.ab4+= Bb7 (4...Nf6 5.Nc3 Qc7 6.Bb2+=) 5.Nc3 e6 (5...Nf6 6.e5 Nd5 7.Nd5 Bd5+=) 6.Bb2 (6.b5 Bb4+-) 6...d6 (6...Bb4!? 7.Nf3 Nc6=) 7.Ra4 (7.Nf3 Nf6+-) 7...a6 (7...Nf6 8.Bd3+=) 8.Qa1 (8.b5 a5+=) 8...Qc8 (8...Nf6 9.Bd3+=) 9.Nf3 (9.Bd3 Nd7+=) 9...Nd7 10.b5 Nc5 (better 10...a5!? 11.d4 Ngf6+=) 11.ba6+- Na4 (better 11...Ba6 12.Bb5 Kd8+-) 12.ab7 (12.Na4 Ba6 13.Nb6 Bf1 14.Na8 Bg2=; 12.Qa4?! Bc6 13.Bb5 Bd7+-) 12...Qb7 13.Bb5 Ke7 (13...Kd8 14.Na4 (14.Ba4?! b5=) 14...Qe4 15.Kd1+-) 14.Na4 (14.Ba4?! b5=) 14...Qe4 15.Kd1 Qb4 (15...Ra5 16.c4 Qg4+-) 16.c4 (better 16.Nd4 Qc5 17.Nc6 Ke8 18.Na7 Qb5 19.Nb5+-) 16...f6 (16...Qb3 17.Ke2 Qc2 18.Re1+-) 17.Nd4 (17.Kc2!? Kf7 18.Bc3 Qc5 19.Nc5 Ra1 20.Ra1 bc5 21.Ra7 Ne7+-) 17...Kf7 18.Bc3 (18.Bc3 Qc5 19.Ne6 Qf2 20.Qb1 Qg2 21.Re1+-) 1–0. Parpinel,Marco (2155) – Granaldi,Alessandro (2080), Porto San Giorgio ITA, 2008. (=1.e4 c5 2.a3 b6 3.b4 cb4)

3.a3 Nc6 4.b5+= Na5 (4...Nd4 5.c3 Ne6 6.d4+=) 5.c4 (5.Nf3 Bb7+=) 5...g6 (5...d6 6.d3=) 6.Nc3 (6.Bb2 Nf6+=) 6...Bg7= 7.g3 (7.Bb2 Bb7 8.Qc2 Nf6=) 7...Bb7=+ 8.Qc2 (8.f3 Nf6=+) 8...f5 9.Rb1 (9.Bd3 Nf6 10.f3 fe4 11.fe4 e6=+) 9...Bc3 10.dc3?? (better 10.Qc3 Nf6 11.f3 fe4 12.Bg2-/+) 10...Be4-+ (10...fe4?! 11.Qe2-/+) 11.Bd3 (11.Bd3 Bh1 12.Bg5-+). Foster,Duncan – Guralivu,Paul (1995), FICGS, 2016. (=1.e4 c5 2.a3 b6 3.b4 Nc6)

3.Ba3 cb4!? 4.Bb4 Nf6 =.

3.Ba3 Nc6 4.bc5+= Nf6 5.Nc3 e5 6.Nf3 bc5 7.Rb1 Be7 8.Bb5 Qc7 9.Nd5 (9.0-0 0-0=) 9...Nd5 10.ed5 Nb4 11.0-0 0-0 12.Re1 Nd5 (12...Rb8 13.c4 (worse is 13.Re5 Bd6 14.Re3 Rb5-/+) 13...a6 A) 14.Re5? Bd6-+ (14...ab5?! 15.Re7 bc4 16.d4=); B) 14.Ba4=) 13.Ne5+= d6 (13...Rb8 14.Qf3 Nf6 15.d4=) 14.Nf3 (better is 14.Bc6!? Be6 15.Ba8 Ra8 16.Nc4+/-) 14...Bg4 15.h3 Bf5 16.Rb3 (16.Nh2 Be6+=) 16...Rfb8 17.Bd3 (17.Qe2 Be6 18.c4 Nf4=) 17...Be6 (17...Rb3!? 18.ab3 Bd3 19.cd3 Rb8-/+) 18.c4= Nf4 19.Qc2 (19.Be4 Bc4 20.Rbe3 Bd5+=) 19...Nd3+= 20.Qd3 Rb3 21.Qb3 Rb8 22.Qc2 d5 (22...Bf6 23.d3+=) 23.cd5= Bd5 24.Bb2 (24.d4!?=) 24...Bf3-/+ 25.Be5 Bd6 (25...Bd6 26.Bd6 Qd6 27.gf3 a6-/+) 0–1. Fijalkowski,Marek – Abs da Cruz,Andre, EP100190 WCCF email, 2005. (=1.e4 c5 2.b4 b6)

3.Ba3 d6 4.Bc4 Nf6 5.d3 e6 6.Qe2 Nc6 7.Bb5 Bd7 8.bc5 bc5 9.c3 Be7 10.Nf3 0-0 11.0-0 Rb8 12.Ba4 Qb6 13.Bc1 Rfd8 14.Bc2 Bc8 15.h3 Ba6 16.Be3?? (better is 16.Re1!?+=) 16...Ne4! 17.Qd1?? (17.de4 Be2) 17...Nf6 (better is 17...Qb2 18.Re1 Nf2 19.Bf2 Qa1-+) 18.Bc1 Nd7 19.Nbd2 d5 20.Re1 Bf6 21.Rb1 Qc7 22.Bb2 (22.Rb8 Rb8 23.c4 Qd6-+) 22...Nde5 23.Re3? (better is 23.Ne5 Be5 24.Re2-+) 23...d4 24.cd4 cd4 (24...Nd4?! 25.Ne5 Be5 26.Nb3-+) 25.Re4 Nd3 26.Ba1 e5 27.Nf1 (27.Rb8 Qb8 28.a3 Qd6-+) 27...Nc5 (27...Ncb4 28.Bb3-+) 28.Rg4 (28.Rb8 Qb8 29.Re1 Nb4-+) 28...d3 (28...Rb1 29.Qb1 d3 30.Bb3-+) 29.Rb8 Rb8 (29...dc2?! 30.Rd8 Qd8 31.Qc2=) 30.Bb1 Bc8 31.Rc4 Qd6 32.N1d2 Be6 33.Ne4 Ne4 34.Re4 Bf5 35.Ra4 e4 36.Nd2 Ba1 37.Nc4 Qf6 38.Ne3 Bd4 39.Qe1 Be3 40.fe3 Qb2 41.Rc4 Qb1 42.Rc1 Qb6 43.Rd1 h6 44.Qf2 Be6 45.Rd2 Ne5 46.Qf4 Nc4 47.Rf2 d2 0–1. Rumyantsev,Nikolay (1920) – Razumov,Andrey, Samara op, 2008. (=1.e4 c5 2.b4 b6)

3.Bb2 e6 4.bc5 bc5 5.Bc4 d6 6.Nf3 Nf6 7.0-0 Be7 8.Re1 Nbd7 9.Nc3 Nb6 10.Bf1 0-0 11.a4 Rb8 12.d4 cd4 13.Nd4 a6? (better is 13...Qc7!? 14.Ndb5 Qd7+=) 14.Nc6+- Qc7 15.Nb8 Qb8 16.Ba3 Qc7 17.Qd4 Bb7 18.Red1 Rd8 19.Rab1 Nc8 20.Rb3 Nd7 21.Rdb1 Nc5 (21...Bc6 22.Ba6 Nc5 23.Bc5 dc5+-) 22.R3b2 (better is 22.Bc5 dc5 23.Rb7 Qh2 24.Kh2 cd4 25.Na2+-) 22...Bf6 23.Qe3 Rd7?? (better is 23...Ba8+-) 24.Bc5 dc5 (24...Be4 25.Bd4 Bd4 26.Qd4+- (26.Qe4?! Qc3 27.Rb8 Ba7+-)) 25.Rb7 Qb7 26.Rb7 Rb7 1–0. Arca,L – Gergely,I, Palocco tt, 1998. (=1.e4 c5 2.b4 b6)

3.b5 Nf6 4.Nc3 Bb7 5.d3 g6 6.Bb2 Bg7 7.Nf3 d6 8.Be2 0-0 9.0-0 Nbd7 10.a4 a6 11.Ng5 ab5 12.ab5 d5 13.ed5 Nd5 14.Qd2 e6 15.Rab1?? Nc3-+ 16.Bc3 Bc3 17.Qc3 Qg5 (17...Qg5 18.g3 Qd5-+) 0–1. mbarker (2185) – johnb (2190), net–chess.com, 2008.

3.Bb5 cb4 4.Nf3+=.

3.Bb5 Nc6 4.Qe2 (4.bc5!? Nd4 5.Bc4+=) 4...Nf6 5.Bc6 dc6 6.f4 (6.bc5 Qd4 7.Nc3 Qc5=) 6...g6 (6...cb4 7.Nf3-/+) 7.Nf3 (7.bc5 Qd4 8.Nc3 Qc5=) 7...Bg4 (better is 7...cb4 8.Qc4 c5+=) 8.0-0?? (8.bc5 Bf3 9.Qf3 Qd4=) 8...Bg7 (better is 8...Bf3 9.Qe3 Be4-+) 9.e5= Nd5 10.Qe4? (10.bc5 Nf4 11.Qe4 Bf3 12.Qf4+= (12.Rf3? Qd4 13.Re3 Ne2 14.Kh1 Qe4 15.Re4 Nc1-+)) 10...Bf5 11.Qc4 Nb4 12.a3? (better is 12.Na3-+) 12...Nc2 13.Ra2 Nd4 (13...Bd3 14.Qc3 Bf1 15.Kf1-+) 14.Nc3 (14.Nd4 Qd4 (14...cd4?! 15.Qc6 Kf8 16.Rb2-/+) 15.Qd4 cd4-+) 14...e6 (better is 14...Nf3 15.Rf3 Be6 16.Qa6 Qd4 17.Rf2 Ba2 18.Na2-+) 15.Nd1 0-0 16.Ne3? (16.Nd4 Qd4 17.Qd4 cd4-+) 16...Bh6 (better is 16...Bd3 17.Qa4 Bb5-+) 17.g3?? Bf4 18.Nf5-/+ ef5 19.gf4= Qd5 20.Qd5+/- cd5 21.Nd4 cd4 22.Bb2 Rac8 23.Bd4 Rc4 24.Bc3 Rfc8 25.Rb2 d4 26.Bb4 Kg7 27.Kg2 R8c6 28.Re1 Rc2 29.Rc2 Rc2 30.Re2 a5 31.Be7 Rc7 32.Bd8 Rc6 33.Kf3 Kh6? 34.Re1 a4? 35.Rb1 Rc2 36.Ke2 Rc8 37.Bb6 Rb8 38.Kd3 Kh5 39.Kd4 Kh6 40.Kc5 Kh5 41.d4 Kh4 42.Rg1 Rg8 43.d5 Rc8 44.Kd6 Rb8 45.Kc7 Rg8 46.d6 g5 47.Rg5 Rg6 48.Rg6 fg6 49.d7 1–0. Gramstad,Thomas – Fredriksen,Sten Tore, Oslo–ch, 2004. (=1.e4 c5 2.b4 b6)

3.Bc4 cb4?? 4.Bf7!+- Kf7 5.Qh5 g6 6.Qd5 e6 7.Qa8 Bg7 8.Qb8 Ba1 9.Nf3 Ne7 10.Qa7+/- Nc6 11.Qa4 Bb7 12.d3 Qe7 13.Bg5 Qc5 14.Be3 b5 15.Bc5 ba4 16.Ke2 Bf6 17.Nbd2 Ba6 18.Rb1 Bc3 19.e5 Ne5 20.Bb4 Nf3 21.Bc3 Nd2 22.Kd2 Ra8 23.f3 h5 24.Rb4 Bc8 25.Rf4 Ke7 26.Rf6 Bb7 27.Rg6 Rf8 28.Be5 Rf7 29.Rh6 Rf5 30.d4 Bd5 31.a3 Ke8 32.Rh8 Ke7 33.h4 Bc4 34.Ke3 Bb5 35.Bf4 Kf7 36.g4 hg4 37.fg4 Rd5 38.h5 d6 39.Rd8 Bf1 40.h6 Kg6 41.Rd7 Bb5 42.h7 Bd7 43.h8Q Bb5 44.Bh6 Re5 45.de5 Kf7 46.Qf8 Kg6 47.Qg7 1–0. pierre – computer, internet, 2010.

3.Bc4 d6?? 4.Bd5+- e6 (4...Bg4 5.f3 Nd7 6.fg4+-) 5.Ba8 Qc7 (5...cb4 6.a3 ba3 7.Nc3+-) 6.b5 1–0. Beijer,Bart – Slagter,Ruben, Groningen op–B, 2004. (=1.e4 c5 2.b4 b6)

3.bc5+= Bb7 4.cb6 Be4 5.ba7 Ra7 6.Nc3 Ba8 7.Nf3 Nf6 8.Rb1 g6 9.Bc4 Bg7 10.0-0 0-0 11.Re1 d6 12.Bb2 Nbd7 13.Qe2 Nc5 14.d4 Nce4 15.Nb5 Rb7 16.d5 Qd7 17.a4 Nc5 18.a5 Rc8 19.Nfd4 Nh5 20.Nc6 e5 21.de6 (21.Ba3!? Nf4 22.Qf3 Re8+-) 21...fe6 (better is 21...Ne6 22.Be6 fe6+=) 22.Ncd4 (better is 22.Bg7 Kg7 23.Ncd4+/-) 22...d5+= 23.Ne6 Ne6 24.Qe6 Qe6 25.Re6 Bb2?? (25...dc4!? 26.Nd6 Nf4+=) 26.Bd5 (better is 26.Nd6!? Ba3 27.Nb7 dc4 28.a6+/-) 26...Rb5= 27.Rc6 (better is 27.Re8! Kg7 28.Rc8 Bd5 29.c4 Ra5 30.cd5 Rd5 31.Kf1+=) 27...Kg7+= 28.Rc8 Bd5 29.c4 Ra5 30.cd5 Rd5 31.g4 Nf4 32.h4 Rd2 33.g5 Kf7 1–0. Kadas,Gabor (2220) – Meszaros,Andras (2325), HUN–chT2 Erkel, 2004. (=1.e4 c5 2.b4 b6)

3.bc5!? Nc6 4.Nc3+-.

3.bc5+= e5 4.cb6+/- Qb6 5.Nf3 Nc6 6.Nc3 Nd4 7.Ne5+- Nf6 8.Nc4 Qc5 9.d3 d6 10.Bd2 Be7 11.Na4 Qc7 12.h3 0-0 13.c3 Nb5 14.Be2 d5 15.ed5 Nd5 16.Bf3 Bb7 17.d4?? Nf4?? 18.Bf4+- Bf3 19.Qf3?? Qc4+/- 20.Nb2 Qc3 21.Qc3 Nc3 22.Nd1 Bb4 23.Kf1 Rad8 24.Be3 Ne4 25.a3 Nd2?? 26.Ke2+- Ne4 27.ab4 Rc8 28.Ra2 Rc7 29.Rg1 Rfc8 30.Kf3 f5 31.g4 Nc3 32.Nc3 Rc3 33.Ra7 Rf8 34.Kf4 g6 35.Kg5 Rf7 36.Rf7 Kf7 37.gf5 gf5 38.Kf5 1–0. gstevenson (2235) – burrango (1970), net–chess.com, 2009.

3.d4 Bb7 4.Bd3 (4.bc5 bc5 5.d5 e6+=) 4...e6 (4...cd4 5.Nf3+=) 5.Qe2 (5.bc5 bc5 6.dc5 Bc5=) 5...d5 (5...cd4 6.a3+=) 6.ed5 (6.bc5!? bc5 7.dc5 Bc5 8.Nd2=) 6...Bd5-/+ (worse is 6...cd4 7.Bb5 Ke7 8.de6 fe6 9.Nf3+=) 7.c4 Bg2 8.Be4 Be4 (8...cd4? 9.Bg2 Nd7 10.Ba8 Qa8 11.Nf3 Bb4 12.Nbd2+/-; worse is 8...Qd4 9.Bg2 Qa1 10.Qc2 cb4 11.Ba8+=; 8...Bh1?! 9.Bh1 Nd7 10.Ba8 Qa8 11.d5-/+) 9.Qe4 Nd7 (9...Qd4 10.Qa8 Bd6 11.bc5 bc5 12.Ne2 Qa1 13.Nbc3+/-) 10.bc5-/+ bc5 11.d5 Ngf6 12.Qe2 e5 (12...Qe7 13.de6 Qe6 14.Qe6 fe6 15.Nf3-/+) 13.Nf3 Bd6 14.Nc3 0-0 15.Nb5 Qe7 16.Bg5 h6 17.Be3 (17.Nh4 e4 18.Rd1 Bb8-/+) 17...a6 18.Nd6 Qd6 19.Rg1 e4 20.Nh4?? (better is 20.Nd2 Qh2 21.Qf1-+) 20...Qh2 21.0-0-0 (21.Qf1 Qh4 22.Qg2 Ne8-+) 21...Qh4 22.Rh1 Qg4 23.Qd2 Ne5 (23...Qf3!? 24.Rhg1 Kh7 25.Rg3-+) 24.Rdg1 Nc4 25.Rg4 Nd2 (25...Ng4?! 26.Qe2 Nce3 27.fe3-+) 26.Bh6 (26.Rg3 Nf3 27.Bh6-+) 26...Ng4 27.Bd2 Nf2 28.Rg1 Nd3 29.Kc2 Rfe8 (29...f5 30.Bc3 Rf7 31.Kb3-+) 30.Bh6 (30.Bc3 g6-+) 30...g6 31.d6 (31.Bg5 Nb4 32.Kc3 Nd5 33.Kc4 Nb4-+) 31...Rad8 32.Be3 Rd6 33.Rg5 Nb4 34.Kb2 Rb6 (better is 34...f5!? 35.a3 Nd3 36.Kb3-+) 35.Kc3 Na2 36.Kc4 Rb4 37.Kc5 Ra4 38.Rg2 Rc8 39.Kb6 Rc3 40.Bf4 0–1. Liu,Kevin – Liou,Arthur, Fremont MSJE CC, 2005. (=1.e4 c5 2.b4 b6)

3.Ne2 Bb7 4.Ng3 e6 5.bc5= bc5 6.Nc3 Nc6 7.Bc4 Nf6 8.0-0 Be7 9.Rb1 Rb8 10.d3 0-0 11.Bf4 d6 12.a3 Qc8 13.Re1 Rd8 14.Ba2 Ne8 15.Qd2 Bf8 16.Bg5 Ne7 17.Be3 Nc7 18.f4 Nc6 19.f5 d5 20.Bf2 Nd4 21.fe6 fe6 22.Bd4 cd4=+ 23.Nb5 Nb5 24.Rb5 Bc6 25.Rb8= Qb8 26.Qg5 Rd7 27.Rf1 Qd8 28.Qg4 Qe8 29.Nh5 Kh8 30.Nf4 Rf7? 31.Qe6+- Re7? 32.Qh3 Rf7? 33.ed5 Bd7+/- 34.Qh4 (34.Qh4 Qe3 35.Kh1+/-) 1–0. Guglielmi,Riccardo (2100) – Coste,Thierry (2230), Cannes op (4), 1990.

3.Nf3 Nf6 4.d3 Bb7 5.Nbd2 d6 (5...cb4 6.Be2+=) 6.g3 (6.bc5 dc5 7.Nc4 e6+=) 6...Nc6 (6...cb4!? 7.a3 ba3-/+) 7.bc5 dc5 8.Bg2 Nd4 9.0-0 Nf3 10.Nf3 c4 11.Rb1 cd3 12.cd3 Ba6?? (better is 12...e6+=) 13.Qa4+- b5 (13...Nd7 14.Qa6 e6 15.d4+-) 14.Qa6 Qd3 (14...Qb6 15.Qb5 Qb5 16.Rb5 a6+-) 15.Qc6 Qd7 16.Qa8 Qd8 17.Qd8 Kd8 1–0. Morrissey,Kate – Balabanska,Anna, AUS–ch U18 Girls, 2003. (=1.e4 c5 2.b4 b6)

3.Nf3 g6 4.bc5 bc5 5.Nc3 Bg7 6.Bc4 e6 7.0-0 Ne7 8.Rb1 0-0 9.Ba3 d6 10.Qe2 Nbc6 11.Rfd1 (11.g3 Qa5 12.Rb3 Rb8+=) 11...Bd7 12.Nb5 (12.Qd3 Ne5 13.Ne5 Be5=) 12...Be8 (12...d5 13.Bb3 a6 14.Nd6+=) 13.d4 Nd4? (better is 13...a6!? 14.Nd6 Qd6 15.Bc5 Qc7=) 14.Nbd4 cd4 15.Nd4 Qc7 16.Bd6 (better is 16.Nf5! Nf5 17.ef5+/-) 16...Qd6= 17.Ne6 Qe5 18.Nf8 Bf8 19.Qe3 Bc6 20.Qb3 (20.Qf3 Be8=) 20...Qe4+= 21.Bf7 Kh8 (21...Kg7 22.f3 Qe5 23.Qc4=) 22.f3= Qf4 23.Rd3 Nf5?? (better is 23...Bg7 24.Qc4 Qg5=) 24.Qc3+- Ng7?? (24...Bg7 25.Qc6 Bd4 26.Kf1 Rf8+-) 25.Qc6 Rb8 26.Rb8 Qb8 27.Bb3 h5 28.Qg6 Qf4 29.g3 Qc1 30.Kg2 h4 31.gh4 Qf4 32.Qg5 Qg5+- 33.hg5 Nf5 34.Rd7 Nh4 35.Kg3 Ng6 36.h4 Ne5 37.Ra7 Bd6 38.Kg2 Ng6 39.Kh3 Nf4 40.Kg4 Ne2 41.g6 (41.g6 Bc7 42.Rc7 Nd4 43.Rh7) 1–0. Soubirou,Oriane – Mamah,Isabelle, Troyes FRA, Roza Lallemand Mem, 2014. (=1.e4 c5 2.b4?? b6??)

3.f4 cb4 4.c4 Bb7 5.d3 e6 6.Nf3 Nc6 7.Bb2 Nf6 8.Nbd2 Be7 9.d4 d5 10.Bd3 de4 11.Ne4 0-0 12.Nf6 Bf6 13.Bc2 Qd6 14.0-0 Rad8 15.Qd3 g6 16.Rad1 Qf4 17.Bc1? (better is 17.Qe2!?-+) 17...Bd4 18.Kh1 Qc7 19.Ng5 Bg7 20.Qh3 h6 21.Bg6 (21.Nf3-+) 21...fg6 22.Qe6 Kh8 23.Rd8 Qd8 (23...Nd8?? 24.Rf8 Bf8 25.Bb2 Qg7 26.Bg7 Kg7 27.Qd7 Kf6 28.Qd8 Be7 29.Qd4 Kf5 30.Qd7 Kf6 31.Qe6 Kg5 32.Qe7 Kf4 33.Qb7+-; 23...Rd8?! 24.Nf7 Kh7 25.Nd8 Nd8 26.Qe2-+) 24.Nf7 Kh7 25.Re1 (25.Bf4 Qd3 26.Rg1 Nd4-+) 25...Qc7 (25...Qh4!? 26.Rf1 Nd8 27.Qe2 Rf7 28.Be3-+) 26.Nd6 Nd4 (26...Nd4 27.Nb5 Nb5 28.cb5 Rf2-+) 0–1. Williams,J – Novag Constellation, Tal Open, 1983. (=1.e4 c5 2.b4 b6)

3.g3?? cb4 4.Nf3=+.

3.g3?? Bb7 4.d3 (4.bc5!? Nf6 5.d3=) 4...cb4-/+ 5.a3 e6 6.ab4 Bb4 7.c3 Be7 8.Bg2 Nf6 9.Ne2 0-0 10.0-0 Nc6 11.Nd2 d5 12.f4 (12.d4 Qc7-/+) 12...de4 (12...b5 13.Bb2-+) 13.Ne4-/+ Na5 14.Nf6 Bf6 15.Bb7 Nb7 16.Be3 Nd6 17.Bd4 Nf5 18.Bf6 Qf6 19.Qc1 (19.Qa4 Qe7-/+) 19...Rfd8 20.Rd1 Rd7 21.d4 Rc8 22.Qb1 Ne3 23.Rd3 (23.Rc1 Nc4-+) 23...Nc4-+ 24.Qb5 (24.g4 Qh4 25.Rg3 a5-+) 24...Qd8 (24...Rd5 25.Qa6 Rc7 26.Nc1-+) 25.Qh5 (25.Qa6 Rdc7 26.Qb5 a5-+) 25...Rd5 26.Qf3 a5 27.g4 (27.Nc1 Rb5-+) 27...Qd7 28.g5 g6 (28...Qc6!? 29.Qh5 Rb5 30.Rh3-+) 29.Ng3 Nd6 30.Re1 (30.Nh1 Qc6-+) 30...Qc6 31.Qg4 (31.Ra1 a4-+) 31...Rb5 32.Re2 (32.Qd1 Rb2 33.Re2 Re2 34.Ne2 b5-+) 32...Rb3 (better 32...a4 33.Kf2 a3-+) 33.Re6?? (33.Rc2-+) 33...Rb1 (33...fe6?! 34.Qe6 Kg7 35.Qe5 Kf7 36.Qf6 Kg8 37.Qe6 Kg7 38.Qe5 Kg8 39.Qe6=) 34.Kf2 fe6 35.Qe6 Nf7 36.d5 Qc4 (better 36...Rb2 37.Kf3 Qc4-+) 37.Re3 (37.f5 Rf8 38.Rf3-+) 37...Qf4 38.Rf3 (38.Kg2 Rb2 39.Ne2 Rc5-+) 38...Rb2 39.Kg1 (39.Ne2 Qh2 40.Ke1-+) 39...Qf3 40.Qc8 (40.Qg6 hg6 41.Ne2 Rb1 42.Nc1 Rc1) 40...Kg7 (40...Kg7 41.Qh3 Qf2 42.Kh1 Rb1 43.Qf1 Rf1 44.Nf1 Qf1) 0–1. Gonzalez Delgado,Hugo Andres (1910) – Prado,Leonardo (1950), Championship Nacional Amateur de Ajedre, 2014. (=1.e4 c5 2.b4 b6)

3.a3 Bb7

4.Nc3 d6 5.d4 cd4= 6.Qd4 Nc6 7.Qe3 (7.Bb5 Qd7 8.Qd3 g6=) 7...e6 (7...g6 8.Bb5=) 8.Bb2 (8.Nf3 Nf6=) 8...Nf6 (8...Be7 9.Nf3=) 9.Bb5 (9.Nf3 Be7=) 9...Be7 10.Nge2 (10.Nf3 0-0=) 10...0-0 11.0-0 Qc7 12.Rfd1 (12.f3 Ne5=) 12...Ne5 13.Rd4? (better 13.Nf4!?=) 13...a6-/+ 14.Bd3 (14.Ba4 Nc4 15.Rc4 Qc4-/+) 14...Nc6 15.f4 (15.Qg3 b5-/+) 15...Nd4 (15...b5 16.h3-+) 16.Nd4 g6 17.f5 (17.Rd1 e5 18.Nb3 Rad8-/+) 17...e5 (17...Ng4 18.Qe2 Bf6 19.Ncb5 ab5 20.Qg4-/+) 18.Nf3 (18.Nb3 a5-+) 18...Kh8 (18...Ng4 19.Qd2-+) 19.Rf1 (19.fg6!? fg6 20.Rf1-+) 19...gf5-+ 20.ef5 Rg8 21.h3 (21.Kh1 b5-+) 21...Rg7 22.Ne4 (22.Rf2 b5-+) 22...Rag8 23.Rf2 Qc6 24.Ned2 (24.Nf6 Bf6 25.Kf1 Bg5 26.Ng5 Rg5-+) 24...b5 25.c4 (25.Kh1 Bd8 26.Qe1 Bb6-+) 25...bc4 26.Nc4 (26.Bc4 Nd5 27.Bd5 Qd5-+) 26...Qd5 (26...Nd5 27.Qd2 Nf4 28.Kf1-+) 27.Bf1? (better 27.Ncd2-+) 27...Ne4 28.Qh6 (28.Rc2 Rg3 29.Na5-+) 28...Nf2 29.Kf2 (29.Nce5 de5 30.Be5-+) 29...Rg2! (29...Rg2 30.Ke1 Qf3 31.Be5 de5 32.Bg2 Rg2 33.Qg7 Kg7 34.f6 Kf6 35.Ne5 Qe2) 0–1. Paleologu,Vladimir (2155) – Atlas,Valery (2480), Ch Switzerland (team), 2005. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 d6 5.g3 Nf6= 6.Bg2 Nbd7 (6...Na6 7.Rb1=) 7.Nge2 e6 (7...h5 8.0-0=) 8.0-0 Qc7 (8...h5 9.h4+=) 9.f4 (9.bc5!? Nc5 10.d3=) 9...Be7= 10.f5 (10.d4 0-0=) 10...e5 (10...ef5 11.Rf5 Ne5 12.Bb2=) 11.Nd5 (11.d3 0-0=) 11...Nd5=+ 12.ed5 Nf6 13.c4 cb4 (13...b5 14.cb5 Nd5 15.bc5 Qc5 16.d4 Qb5 17.Ra2=) 14.Qa4 Qd7 (14...Nd7 15.Qb4 0-0=+) 15.Qd7 (better 15.ab4!? a5 16.Bb2=) 15...Kd7-/+ 16.ab4 Rhc8 17.d3 b5 18.cb5 Rc2 19.Re1 Bd8 (19...Bd5 20.b6 Bg2 21.Kg2-/+) 20.Be3 Bb6 21.Bb6 (21.Bf2 Rac8-/+) 21...ab6 22.Ra8 (22.Bf3 Rd2-+ (22...Nd5?! 23.Ra6=+)) 22...Ba8 23.d4 (23.Bf1 Nd5 24.Bh3 Nf6-+ (24...Nb4?? 25.f6 Kc7 26.fg7+-)) 23...Bd5-+ 24.de5 (24.h4 Rd2-+) 24...de5 25.Rd1 (25.h3 Bc4 26.Bf3 Kd6-+) 25...Kd6 Black prepares the advance e4 26.Kf1 (26.Bf1 Ne4-+) 26...e4 27.Nd4 (27.Ke1 Ke5-+) 27...Rb2 28.h3 (28.Kg1 Rb4 29.Bf1 Rb2-+) 28...Ke5 (28...Rb4 29.Kg1-+) 29.Nc6 (29.g4 Bc4 30.Kg1 Nd5 31.Nc6 Kf4-+) 29...Kf5 30.Ne7?! (30.Kg1 Ke6-+) 30...Ke5 (30...Ke6 31.Nc8 e3 32.Bd5 Nd5 33.Re1-+) 31.Rc1 (31.Nc6 Kd6 32.Kg1 e3 33.Bd5 e2-+ (33...Nd5?! 34.Ne7-+)) 31...Nh5 (31...Rb4?! 32.Nc6 Bc6 33.bc6=) 32.Nd5 (32.Rc3 Kd4 (32...Rb4?! 33.Nc6 Bc6 34.bc6 Ng3 35.Rg3=) 33.Nd5 Kd5-+) 32...Kd5 (better 32...Ng3 33.Ke1 Kd5 34.Rd1 Ke5-+) 33.Rc6 (33.Rc7 f5 34.Kg1 Ng3 35.Rd7 Ke5 36.h4 Ne2 37.Kh1-+) 33...Ng3 34.Kg1 Ne2 35.Kf1 (35.Kh1 Nf4 36.Be4 Ke4-+) 35...Nf4 36.Be4 Ke4 37.Rb6 (37.Rc4 Ke5 38.Rc7 Rb1 39.Kf2 Nh3 40.Ke3 Rb3 41.Kd2-+) 37...Kf3 38.Ke1 (38.Re6 fe6 39.Ke1 Nd3 40.Kd1 Ke3 41.b6 Rd2) 38...Nd3 39.Kd1 Ke3 40.Rg6 (40.Re6 fe6 41.b6 Rd2) 40...Rd2 0–1. Hague,Ben (2265) – Moskovic,David M (2270), 4NCL, 2008. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 Nf6 5.e5 Nd5 6.Nd5 Bd5 7.Bb2 e6 8.c4 Bb7 9.Qg4 h5 10.Qg3 h4 11.Qg4 cb4 12.ab4 g6 (12...Bb4 13.Qg7 Rf8 14.Ba3=) 13.b5 Rh5 14.Nf3 d6 (14...h3 15.g3+=) 15.ed6 (15.Bd3 Rh6+=) 15...Bd6 16.Be2 Nd7 (16...h3 17.g3=) 17.0-0 (17.Qh3+=) 17...Qe7 (17...h3!? 18.g3 e5=) 18.Rfe1 (18.Qh3 Nb8+/-) 18...Nf6 (18...h3 19.g3+=) 19.Qd4 e5 20.Qe3 Ng4 21.Qc3 (21.Qb3!?+/-) 21...h3+= 22.Bf1 (22.g3 Bc5 23.Rf1 Rf5+=) 22...hg2 (better 22...e4!? 23.gh3 Ne5 24.Ne5 Be5-/+ (worse 24...Re5 25.Bg2+=; worse 24...Qe5 25.Qe5 Be5 26.Be5 Re5 27.d4+/-)) 23.Bg2= e4 24.d3 (24.h3 Bb4 25.Qc2 Nf6=) 24...0-0-0 (better 24...Bc5 25.d4 Bb4-/+) 25.Ra7?? (better 25.de4 Bb4 26.Qc2 Be1 27.Re1=+) 25...Nh2 (25...ef3 26.Bf3 Qh4 27.Bb7 Kb8 28.Qc2-+) 26.Rb7?? (better 26.de4!? Kb8 27.Rea1+/-) 26...Qb7 (better 26...Nf3 27.Kf1 Qb7 (worse 27...Kb7 28.Re4 Qc7 29.Bf3+=) 28.Re4 f5 29.Bf3 fe4 30.de4 Be5-+) 27.Re4= Qc7 28.Nd4 Rdh8 (28...Bc5!? 29.Qe1 Rg5=) 29.Nc6 f5 30.Re6 Ng4 31.Qh8 (31.Rg6 Bc5 32.Kf1 Re8=+ (32...Nf2? 33.Qf6 Qd7 34.Ne5+-)) 31...Rh8 32.Bh8 Bh2 33.Kf1 Qf4 (33...Qf4 34.Bd4 Bg3 35.Re8 Kd7 36.Re7 Kd6 37.Bb6 Qc1 38.Ke2 Qc2 39.Kf3 Qd3 40.Be3 Ne5 41.Kg3 f4 42.Kf4 Qc4 43.Kg3 Nc6=) 0-1. Umarov,S (2360) - Ogloblin,N (2345), Titled Tuesday 6th Oct, 2020. (=1.e4 c5 2.a3 b6 3.b4)

4.Nc3 g6 5.Rb1 cb4 6.ab4 Bg7 7.d4 Nf6 8.e5 Ne4 9.Ne4 Be4 10.h4 (10.Qe2 Bb7+=) 10...0-0 (10...Qc7 11.Rb2=) 11.Bd3 (11.f3 Bb7+=) 11...d5 (11...Bg2!? 12.Rh2 Bd5=+) 12.h5 (12.Be4 de4 13.h5 a5+=) 12...Nc6 (12...Bg2 13.Rh4+=) 13.c3 (13.Be4 de4 14.c3 a5 15.hg6 hg6 16.ba5 ba5+-) 13...Qd7 (13...Bg2!? 14.Rh2 Be4 15.Be4 de4 16.hg6 hg6+=) 14.Be4+- de4 15.Qe2 Qf5 16.g4 Qe6 17.Nh3 Ne5 (17...gh5 18.gh5 Rfd8 19.b5 Ne5 20.de5 Qe5 21.Bd2+-) 18.de5+- Be5 19.Ng5 (19.Bd2 Qd5 20.c4 Qd3 21.Qd3 ed3+-) 19...Bc3+- 20.Kf1 Qd5 21.Qe4 (21.hg6 hg6 22.Ne4 Rac8+-) 21...Qa2 (21...e6 22.hg6 hg6 23.b5+-) 22.hg6 (22.Nh7 Bd4 (22...Kh7?? 23.hg6 Kg8 24.g7+-) 23.Bb2 Bb2 24.Nf8 Rf8 25.hg6 Bg7+-) 22...hg6+- 23.Rh3 (23.Bf4!? Rac8 24.Kg2+-) 23...Rac8+= 24.Qh1 Qc4 (24...Qb1 25.Rh8!! Kg7 26.Rg8 Rg8 27.Qh7 Kf6 28.Qf7 Ke5 29.Qe6 Kd4 30.Nf3 Kd3 31.Qe2) 25.Kg2 Qd5 (25...Be5 26.Bf4!! Bf4 27.Rh8 Kg7 28.Qh6 Kf6 29.Rf8 Rf8 30.Nh7 Ke6 31.Nf8 Kd6+-) 26.Rf3 Rfd8 27.Qh7 Kf8 28.Nf7 (28.Nf7 Ke8 29.Qg6+-) 1–0. Cadilhac,Igor Tokuichi Kikuc (2215) – Di Berardino,D (2515), 4th Floripa Open (7), 2018. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 g6 5.Bc4 Bg7 (5...Nf6 6.Nf3 cb4 (worse 6...Ne4 7.Ne4 Be4 8.Bb2+-; 6...Be4? 7.Ne4 Ne4 8.Bb2+-) 7.ab4 Nc6+=) 6.Qf3 (better 6.bc5!? Nf6 7.Qe2=) 6...Nf6=+ 7.bc5 bc5 (7...0-0!? 8.Rb1 Nc6=+) 8.Rb1= Qc8 9.Bb2 (9.Qe3 0-0 10.Nf3 e6=) 9...0-0 (9...Nc6 10.Nd5 Nd4 11.Nf6 Bf6 12.Qd3=) 10.Nge2 (10.Nd5 Nc6 11.Ne2 Nd5 12.Bg7 Kg7 13.ed5 Ne5=) 10...d6+= 11.0-0 (11.Nf4 Nc6 12.Ncd5 Nd5 13.Nd5 Bb2 14.Rb2 Re8=) 11...Nbd7= 12.Qe3 (12.Nd5 Nd5 13.Bg7 Kg7 14.Bd5 Bd5 15.ed5 Rb8=) 12...Rb8 (12...Ne5 13.Ba2=) 13.Ba1 (13.h3 Bc6=) 13...Nb6 14.Ba2 Qc6 (14...Ng4 15.Qg3=) 15.d4 (15.f3 e6=+) 15...cd4 (15...Ba6 16.dc5 Qc5 17.Qc5 dc5 18.f3=+) 16.Nd4= Qc5 17.Qd3 (17.Rb5 Qc7 (17...Qa3 18.Bb2 Qa6 19.Ra1+-) 18.Rb4 Ng4=+) 17...Rfc8 (17...Nbd7 18.Nf3-/+) 18.a4 (18.Rb5 Qc7-/+) 18...Ng4 (18...Nfd7 19.Rfd1-/+) 19.Ncb5 (19.Ne6 Qh5 20.h3 Bc3 21.Bc3 Ne5+=) 19...Ne5 (19...Na4 20.Qb3 Ne5 21.Qa4 Be4 22.Nc3+- (22.Qa7?! Ra8 23.Qe7 Ra2+=)) 20.Qe2 (20.Qc3 Be4 21.Qc5 Rc5-/+ (21...dc5?! 22.Na7 Rd8 23.Rfe1=)) 20...Na4 (20...a6 21.a5 Nbc4-/+) 21.Kh1? (better 21.Bb3 Nb6 22.Na7-/+) 21...a6-+ 22.f4 Nd7 (better 22...Nc4 23.Bc4 Qc4 (23...ab5?! 24.Bb5 Nc3 25.Bc3-/+) 24.Qc4 Rc4-+) 23.Nf5?? (23.f5 A) 23...ab5?! 24.fg6 Nc3 A1) worse 25.Bf7 Kh8 26.Ne6 Nf6-/+ (26...Ne2?? 27.Bg7); A2) 25.Bc3 Qc3 26.Qh5=+ (26.Bf7 Kh8 27.Qh5 h6-+); B) 23...Bf6 24.fg6 B1) 24...ab5 25.Bf7 (25.Rb5?! hg6 26.Rc5 Nac5=) 25...Kh8 26.Qe3+-; B2) 24...hg6=+) 23...Ba1 (better 23...gf5 24.Qh5 Ba1 25.Qf7 Kh8 26.Qe7 ab5 27.Ra1 Be4-+) 24.Ne7 Kf8 (24...Kg7!? 25.Nc8 Bc8 26.Ra1 Rb5 27.f5-+) 25.Nc8-/+ ab5 (25...Bc8!? 26.Ra1 Rb5-/+ (26...Qb5?! 27.Qd2=)) 26.Rb5?? (better 26.Qb5 Bc8 27.Qc5 Nac5 28.Rb8 Nb8 29.Ra1 Ne4 30.Bf7 Kf7 31.Ra8=+) 26...Qc8-+ (26...Qc8 27.Ra1 Nc3-+) 0–1. Weidauer,Sigurd (2035) – Meier,Thomas Dr (2185), 34. Untergrombach Open, 2017. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 g6 5.bc5 bc5 6.Rb1 Qc8 7.h4 (7.Bb2 Bg7+=) 7...Nf6 8.h5 (8.e5 Nd5+=) 8...Nh5= (worse 8...Ne4 9.Ne4 Be4 10.f3+=; worse 8...Be4 9.Ne4 Ne4 10.hg6 fg6 11.Bd3+/-) 9.Rh5 (9.Bb2!?=) 9...gh5-/+ 10.Qh5 Nc6 11.Nf3 Bg7 12.Bc4 Nd8 13.Bb2 Ne6 (13...h6 14.Nb5 Bb2 15.Rb2=) 14.Be6= de6 15.Ng5 Rf8 16.Nb5 Bb2 17.Ne6 (17.Rb2 Qc6=) 17...Bf6 (17...Qc6 18.Rb2 Qe4 19.Kd1 Qg2 20.Nbc7 Kd7 21.Nc5 Kc6 22.Qh6 e6 23.d4 Qf1 24.Kd2 Qf2 25.Kc3 Qf3 26.Kc4-+) 18.e5? (better 18.Nbc7!? Kd7 19.Nf8 Kc7 20.Nh7 Be4 21.Nf6 ef6 22.Qc5 Bc6 23.Rb3 Qe6 24.Re3=) 18...Bh8-/+ 19.Nec7 Kd8 20.Qh6 Rg8 (20...Re8 21.e6 fe6 22.Qh7=) 21.e6 (better 21.Qh7!? Qg4 22.Na8=) 21...fe6-+ (21...Bg2 22.ef7 Qg4 23.Ne6 (23.fg8B?! Qg8 24.Rb3 Bd5+-; 23.fg8N?! Qg8 24.Rb3 Bd5+-; 23.fg8Q?! Qg8 24.Rb3 Bd5+-; 23.fg8R?! Qg8 24.Rb3 Bd5+-) 23...Qe6 24.Qe6+-) 22.Qh7 Kd7 (22...Rg2 23.Qh8 Kd7 24.Qh3-+) 23.Qd3 Bd4 24.c3 Rg2 25.cd4 c4 26.Qh3 Qg8 27.Rb4 (27.Ne6 Qe6 28.Qe6 Ke6 29.Nc7 Kd6 30.Rb7 Kc6-+) 27...Qg6 (27...Rf8 28.d5 Bd5 29.Nd5 Rgf2 30.Kd1 Qg1 31.Kc2 Rd2 32.Kd2 Rf2 33.Kc3 Qc1 34.Kd4 Qd1 35.Kc4 Rc2 36.Kb3 Rc1 37.Ka2 Ra1 38.Kb2 Rb1 39.Kc3 Rc1 40.Kb2 Qc2) 28.d5? (28.Qe6 Qe6 29.Ne6 Ke6 30.Nc7 Kd6 31.Rb7-+) 28...Rg1 29.Ke2 Qe4 30.Qe3 Qg4 (better 30...Qh1 31.Qe6 Kd8-+) 31.f3 Qg2 32.Qf2 Rg8 33.de6 Kd8 34.Qg2 R8g2 35.Ke3 Re1 36.Kf4 Rf1 (36...Rd2?! 37.Rc4 Rd3 38.Nd4-+) 37.Rc4 Rf3 38.Ke5 Rg5 39.Kd4 Rg4 (better 39...a6!? 40.Rb4-+) 40.Kc5 Rc4 (40...Rf5 41.Kb4 Rc4 42.Kc4-+) 41.Kc4 a6 42.Nd4 (42.d4 ab5 43.Nb5 Rf5-+) 42…Kc7 (42...Kc7 43.Nf3 Bf3-+) 0-1. Mamedyarov,S (2760) - Caruana,F (2815), Saint Louis Blitz, 2019. (=1.e4 c5 2.a3 b6 3.b4)

4.Nc3 Nh6 5.bc5+- bc5 6.Rb1 Qc8 7.Bc4 e6 8.d3 Nc6 9.Bf4 (better 9.Nf3+-) 9...Na5? (better 9...Be7!?+-) 10.Nb5+- Nc4 11.Nc7 Kd8 12.dc4 Rb8?! (12...Be4 13.Nf3 d6 14.Na8 Qa8 15.Bd6 Bc2 16.Qc2 Bd6+-) 13.Nf3 Rg8 (13...Be7 14.Qd2 Ng4+- (14...Be4?? 15.Ne6 fe6 16.Rb8 Qb8 17.Bb8 Bf3 18.Qa5 Ke8 19.gf3+-)) 14.Na6 (better 14.0-0+-) 14...Ra8= 15.Nc7 g5?? (15...Rb8 16.0-0 g5+-) 16.Bg3+- (16.Ng5?! e5 17.Be5 Rg5 18.Bf6 Kc7 19.Bg5 d6+-) 16...g4 17.Nh4 Rb8 (17...a5 18.Na8 Qa8 19.0-0+-) 18.0-0 Rg5 (18...e5 19.Be5 f6 20.Bf4 Qc7 21.Bc7 Kc7 22.Qd2+-) 19.Qd2 Rh5 20.Nb5 (better 20.f3 d6 21.Nb5+-) 20...Qc6 (20...Ke8 21.Qc3 e5 22.Be5+-) 21.Rfd1 (21.Bb8 Ke8+-) 21...Ra8 (21...e5+-) 22.Qa5 Ke7 23.Bd6 Kf6 24.Qc3 e5 25.Bf8 Qe4 (25...Rf8 26.Rd6 Kg7 27.Rc6 Bc6+-) 26.Rd6 Kg5 27.Be7 (27.Be7 f6 28.Qd2 Kh4 29.Bf6 Rg5 30.Qg5) 1–0. Korostenski,Frantisek (2180) – Bauma,Jiri (2215), CZE–ChT2A, 2011. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.bc5 bc5 5.Nc3 g6 (5...Nc6!?=) 6.Rb1+/- Bc6 (6...Qc7 7.Nf3 Nf6 8.Nb5+/-) 7.Bb2 (7.Nf3 Bg7 8.Bc4 Nf6+/-) 7...Bg7 8.Nd5 (8.Nf3 Nf6 9.Bc4 0-0+=) 8...Nf6 (8...Bb2 9.Rb2 Nf6 10.Qf3=) 9.Bf6 ef6 10.Bc4 0-0 11.Ne2 Re8 12.d3 d6 13.0-0 Nd7 14.Nec3 a6 15.Qc1 Qa5 16.Qf4 Ne5 17.Ba2 (17.Rb3 Bd5 18.Bd5 Rac8+=) 17...Qa3 18.Ra1 Qb2 19.Rab1 (19.Bb3 Bd5 20.Nd5 Nd3+=) 19...Qa3 (19...Qc2 20.Rbc1 Qb2 21.Rb1+=) 20.Ra1 Bd5 (20...Qb2!?=) 21.Nd5+= Qb2 22.Bb3 c4 (22...Nd3!? 23.Qg3 Nb4+=) 23.dc4+/- Rac8 24.Rfb1 (24.Ra6 Nc4 25.Rd1 Rc5+/-) 24...Qd4+= Increasing the pressure on the isolated pawn on c4 25.Ra6 (25.Rd1 Qc5+=) 25...f5 (25...Nc4 26.Ra4 f5 27.ef5 Qd5 28.Bc4 Qf5 29.Qf5 (29.Qd6 Qc2 30.Bf7 Kf7 31.Rb7 Kg8 32.Rg7 Kg7 33.Qd7 Kg8 34.Qd5 Kf8 35.Rf4 Kg7 36.Qd7 Kh8 37.Qd4 Kg8 38.Qd5 Kg7 39.Qd7 Kh8 40.Qd4 Kg8 41.Qd5 Kg7=) 29...gf5 30.Bd3+=) 26.c5 (26.ef5!? Qf4 27.Nf4 Nc4 28.fg6 hg6 29.Ra7+/-) 26...dc5 (26...Rc5 27.Ra4 Nc4 28.ef5 Qd5 29.Bc4 Qf5 30.Qf5 Rf5 31.g3=) 27.ef5+= Qf4 28.Nf4 c4 29.Ba4 Red8 30.g3 (30.fg6 hg6 31.h3 Ra8+=) 30...Bh6 (30...gf5!? 31.Nh5 Rd2=) 31.Nh5+= Rd2 (31...gh5!? 32.Rh6 Ra8+=) 32.Nf6+/- Kg7 33.Ne4 White plans f6 33...Rd4 34.f6 Kg8 35.Nc3 Bf8 36.Kg2 Rd2 37.Re1 (37.h3 Nd7 38.Ne4 Rd4 39.Bd7 Rd7+/-) 37...Ng4 (37...Bb4!? 38.Na2 Nd3 39.cd3 Ra2+/-) 38.Ne4+/- Rd5 (38...Rdd8 39.h3 Ne5 40.f4+/-) 39.h3 Nh6 (39...Ne5 40.f4 Nd7 41.Bc6+/-) 40.g4 Bb4 41.Rb1 Bf8 42.Rb7 Rd1 43.Raa7 Re1 44.f3 Re2 (44...Rc1 45.Rc7 Rc7 46.Rc7+-) 45.Kg3 Re1 46.Kf4 Ba3 47.Bb5 Bc1 48.Ke5 (48.Kg3 Be3 49.Ra3 Rg1 50.Kh4 Bf4+-) 48...Bb2 49.Kf4 Bc1 50.Kg3 Be3 51.Rc7 Rd8 52.Rd7 Rf8 53.Ra3 g5?! (53...Rg1 54.Kh2 Re1 55.Bc4 Bc1+-) 54.Bc4 Bf4 55.Kg2 Kh8 (55...Rc1 56.Bd3 Be3 57.Ra5 Rg1 58.Kh2+-) 56.Rda7 (56.Bf7 Re2 57.Kf1 Rc2+-) 56...Rc1 (56...Rd1 57.R3a5+-) 57.Bb3 Rd1 58.c4 Rb1 59.Ra8 Rb2 60.Kf1 Ra8 (60...Rb1 61.Ke2 Rb2 62.Bc2 Rfb8+- (62...Rc2?? 63.Kd3 Rd2 64.Nd2+-)) 61.Ra8 Ng8 62.Ba2 h5 (62...Rb8 63.Rb8 Bb8 64.c5+-) 63.c5 hg4 (63...Kh7 64.Bf7 Nf6 65.Nf6 Kg7 66.Nh5 Kf7 67.Nf4 gf4 68.Ra4+-) 64.hg4 (better is 64.Bf7 Bb8 65.fg4 Nf6 66.Nf6 Kg7+-) 64...Rb7 (64...Kh7 65.Ra7 Nh6 66.Bf7 Nf7 67.Rf7 Kh6 68.Rf8+-) 65.Rf8 (65.c6 Rc7+-) 65...Kh7 66.Rf7 (66.Rf7 Rf7 67.Bf7+-) 1–0. Svicevic,Rastko (2215) – Velickovic,Sasa (2370), Beograd SER, 2014. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.d3 e6+= 5.c3 (5.b5 d5 6.ed5 ed5+=) 5...d5 (5...Qc7 6.Nf3+=) 6.e5 (6.Nf3 de4 7.de4 Qd1 8.Kd1 Be4+=) 6...d4 (6...Ne7 7.Nf3-/+) 7.bc5 (7.Nf3 Nc6 8.b5 Na5=) 7...bc5 (7...Bc5 8.Qg4 Ne7 9.Ne2-/+) 8.c4 (8.Nf3!? Nc6 9.cd4 cd4 10.Nbd2=) 8...Nc6 9.Nf3 Qc7 10.Bf4 (10.Qa4 Kd8-/+) 10...Nge7 11.Be2 Ng6 12.Bg3 Rc8 (12...h5!? 13.h4 Nce7 14.Nbd2-/+) 13.0-0 Nce5 (13...Be7 14.Nbd2-/+) 14.Nbd2 (14.Ne5 Ne5 15.f4 Nd7+=) 14...Bd6-/+ 15.Ne4 (15.Ne5 Be5 16.Bf3 Bg3 17.hg3 Bf3 18.Nf3 Rb8-/+) 15...Nf3 (15...Be4!? 16.Ne5 Be5 17.de4-+) 16.Bf3-/+ Bg3 17.hg3 Ne5 18.Nd6 (18.Rb1 Rb8-/+) 18...Qd6-+ 19.Bb7 Rc7 (19...Rb8!? 20.Rb1 Qc7-/+) 20.Rb1 Qd7 (20...0-0 21.f4 Nc6 22.Qa4-/+) 21.Ba6 (better is 21.Be4!? h5 22.f4+=) 21...0-0-/+ 22.f4 Qd6 23.Qa4 (23.Bb7 Nc6-/+) 23...Ng4 (23...Nd3 24.Rf3 e5 25.Rd3-/+) 24.Rb2?? (better is 24.Bb7-/+) 24...e5-+ 25.Rfb1 (25.Qd1 Ne3 (25...Qa6?! 26.Qg4 e4 27.de4-+) 26.Qa4 Qh6-+) 25...Re7 (25...Qh6 26.Kf1 ef4 27.Ke1 fg3 28.Bb5 Re7 29.Kd1 Ne3 30.Kd2-+) 26.Bb7 (26.Qd1 f5 27.Bb7 ef4 28.Bd5 Kh8 29.Bf3-+) 26...ef4 (26...Qh6 27.Be4 ef4 28.Kf1 fg3 29.Ke1-+) 27.Qd1 Ne3 28.Qf3 (28.Qh5 fg3 29.Re2 Re6 30.Re3 de3-+) 28...fg3 29.Be4 Re6 (29...Re6 30.Re2 Rf6 31.Re3 de3 32.Qe3 Re6-+) 0–1. Arnaudov,Petar (2105) – Kazakov,Danail (1880), Plovdiv BUL, 2014. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4?? b6?? 3.a3 Bb7)

4.d3 e6 5.c3 d6 6.f4 (6.Be2 Nf6=) 6...g6 7.Nf3 Bg7 8.Qe2 (8.Be2 Nc6=+) 8...Nf6 9.g3 0-0 10.Nbd2 a5 11.b5 e5 (11...c4 12.d4 d5+=) 12.fe5+= de5 13.Nc4 Nh5 (13...Nbd7 14.Bh3+=) 14.Bh3+- (14.Nfe5 Re8 15.Bf4 Qc7-/+; 14.Nce5? Qc7 15.Bf4 Nd7 16.Nd7 Nf4 (16...Bc3?! 17.Bd2 Ba1 18.Nf8-/+) 17.gf4 Bc3 18.Kf2 Qd7-+) 14...f5? (better 14...Qc7+-) 15.0-0+- f4 (15...Nd7 16.Nd6 Qc7 17.Nb7 Qb7 18.ef5+-) 16.g4 (better 16.Nfe5 Be5 17.Ne5+-) 16...Bc8 17.Rd1 (17.Nce5 Qe8 18.d4 Kh8+-) 17...Ra7 (17...Be6 18.Nce5 (worse 18.gh5 Bh3 19.h6 Bh6=+) 18...Be5 19.Ne5+= (19.gh5? Bh3 20.d4 cd4-+)) 18.Qg2 White intends g5 (18.Kg2!? Nf6 19.Nce5+=) 18...Nf6+- 19.Bb2 (worse 19.Nce5 Ne4 20.Bb2 Ng5 21.Ng5 Be5-/+) 19...Re7 20.Nce5 Qe8 21.c4 Bb7 (21...Nfd7 22.Nc6 Nc6 23.Bg7 Rg7 24.bc6=) 22.g5 Nh5? (better 22...Ne4 23.de4 Be5 24.Ne5 Re5+-) 23.Ng4+- Bb2? (23...Kh8 24.Bg7 Rg7 25.Qb2+-) 24.Nh6 (better 24.Qb2!? h6 25.gh6+-) 24...Kh8 25.Qb2 Rg7? (25...Ng7 26.Ng4 Qd7 27.Rac1+-) 26.Bg4 (better 26.Ne5!?+-) 26...Bc8 27.Bh5 gh5 28.Kh1 (28.Re1!? Qd8+-) 28...Bg4+- 29.Ng4 hg4 30.Nh4 Kg8 (30...Nd7!? 31.Nf5 Rfg8+-) 31.Nf5+- Rf5 32.ef5 Re7?? (better 32...Nd7 33.Re1 Qf8+-) 33.Qg2+- g3 34.Qh3 (better 34.hg3!? Qh5 35.Kg1 f3+-) 34...Re2 35.hg3 Qe3 36.Rg1 f3 (36...Qd3 37.g6 Qf3 38.Rg2 h5+-) 37.g6 hg6 38.fg6 Kf8 (38...Qe7 39.Rgf1 f2 40.Qc8 Qe8 41.Qe8 Re8 42.Rf2 Nd7+-) 39.Qh8 (39.Qh7 Ke8 40.g7 Qg5 41.g8Q Qg8 42.Qg8 Kd7 43.Qb8 Re7 44.Rge1 Rh7 45.Kg1 f2 46.Kf2 Rh2 47.Kg1 Rh7 48.Qb7 Kd8 49.Qh7 a4 50.Re7 Kc8 51.Qh8) 39...Ke7 40.Qg7 (better 40.Qh7 Kd8 41.g7 Qe8+-) 40...Ke8 (40...Kd6 41.Qf8 Kd7 42.Raf1+-) 41.Qf7 (better 41.Qg8 Ke7 42.Qh7 Kd6 43.g7+-) 41...Kd8 42.Qf6 Kc8 (42...Kd7 43.g7 Qe6 44.Qe6 Re6+- (44...Ke6 45.g8Q Kd7 46.Qb8 Re7 47.Rge1 Re2 48.Re2 fe2 49.Re1 Ke6 50.Re2 Kf7 51.Qd6 Kg7 52.Re7 Kg8 53.Qd8)) 43.g7 (43.g7 Qe8 44.Qf3+-) 1–0. Alonso,Ro (2210) – Larsen,Alf (2055), Szmetan–Giardelli Open (6), 2018. (=1.e4 c5 2.b4 b6 3.a3 Bb7)

4.e5 Nc6 5.bc5 Ne5 6.cb6 Qb6 7.Nc3 Nf6 8.Rb1 Qc7 9.Nb5 Qc8 10.d4 Ng6 11.Qe2 e6 12.c4 Be7 13.h4 h5 14.Bg5 a6 15.Bf6 gf6 16.Nc3 Ba3 17.Qe3 Be7 18.Nf3 f5 19.Be2 Qc7 20.d5 Rb8 21.Rd1 Bb4 22.0-0 Qf4 23.Qa7?? (better is 23.Qd3 Qg4 24.Ng5-+) 23...Bc3-+ 24.g3 Qc7 25.d6 Qc8 26.Rb1 0-0 27.Qe3 Bg7 28.Qg5 Bf3 29.Bf3 Qc4 30.Bh5 Ne5 31.Rbc1 Qe4 32.Rfd1 Kh7 33.Rc7 Rb2 34.Rdc1 (34.Qf4-+) 34...Bh6 35.Qe7 Bc1 36.Qf8 Qe1 (36...Qe1 37.Kg2 Qf2 38.Kh1 Qg2) 0–1. Gold,H (1830) – Steadman,M (2255), Queenstown Classic, 2012. (=1.e4 c5 2.b4 b6)

4.f3 d5 5.e5 (5.bc5!? de4 6.Bb5 Bc6 7.Bc6 Nc6 8.cb6=) 5...e6 6.c3 Nc6 7.d4 cd4 8.cd4 (8.Bf4 dc3 9.Nc3 Rc8-/+) 8...Qh4 9.g3 Qd4 10.Qd4 Nd4 11.Kf2? (11.Ra2 Rc8 12.Bb2 Nc2 13.Kd2 d4-/+) 11...Rc8 (better is 11...Nb3 12.Bb2 Na1 13.Ba1 Ne7-+) 12.Be3 Rc2 13.Nd2 Nb3 14.Bb5 Kd8 15.Rd1 Nd2 (15...Ra2!?-/+) 16.Rd2 Rd2 17.Bd2 Ne7 18.Ne2 a6 19.Bd3 Nc6 20.f4 Be7 21.Rc1 b5 22.a4 Bb4 23.ab5 Bd2 24.bc6 Bc1 25.cb7 Kc7 26.Nc1 Kb7 27.h4 Rc8 28.Ne2 g6 29.Ke3 Kb6 30.Kd2 a5 31.h5 a4 32.h6 Ka5 33.Bb1 Kb4 34.Bc2 a3 35.Nc1 Rb8 36.Bb3 a2 37.Ba2 Ka3 38.Bd5 Rd8 39.Ke3 Rd5 40.Nd3 Kb3 (40...Rb5!?-/+) 41.Nf2+= Kc2 42.Ne4 Rd3 43.Kf2 Rd2 44.Nd2 Kd2 45.Kf3 Kd3 (better is 45...Ke1 46.Kg4 Kf2=) 46.Kg4+- Ke4 47.Kg5 Kf3 48.g4 Ke4 49.Kf6 Kf4 50.Kg7 Kg5 (50...Ke5 51.Kh7 Kf4 52.Kg7+-) 51.Kh7 1–0. Frink,Ferenc (2210) – Haszon,David (2020), XXVIII Open, Zalakaros HUN, 2009. (=1.e4 c5 2.b4 b6 3.a3 Bb7)

4.f3 e6 5.d4 (5.Bb2 Nf6= 6.b5 d5 7.ed5 Nd5 8.c4 Nf6 9.Nc3 Bd6=+; 5.bc5 Be4 6.cb6 ab6 7.Bb2 Bf5 8.Ne2 Nc6 9.h4 e5=) 5...cd4 (5...cb4!? A) 6.c3 ba3 7.Ba3 (7.Na3 d5 8.ed5 Bd5 9.Bf4 a6-/+) 7...Ba3 8.Na3 d5-/+ 9.Bb5 Nc6-/+; B) 6.ab4 Bb4 7.c3 Be7 8.Bd3 d5 9.Ne2 Nf6=+) 6.Qd4= Be7 (6...Nc6 7.Qd2 Qh4 8.g3 Qf6 9.Ra2 Rc8=) 7.Bf4 (7.Qg7 Bf6 8.Bb2 Bg7 9.Bg7 Qg5 10.Bh8 Qc1 11.Kf2 f6-+ (11...Qc2?! 12.Ne2=+)) 7...Nc6 (7...Bh4 8.g3 Bf6 9.e5 g5=+) 8.Qb2 (8.Qg7?? Bf6 9.Qh8 Bh8-+; 8.Qd2 d5 9.ed5 Qd5=) 8...Bf6 (8...Bh4 9.g3 Qf6=) 9.e5 (9.Nc3 a6=) 9...Bg5 10.Bg3 Bh4 11.Nd2 (better 11.f4!?=) 11...Ne5!-/+ 12.0-0-0 (12.Qe5 Bg3 Double attack (12...Bg3 Decoy)) 12...Bg3 13.hg3 Qf6 14.Ne2 Ne7 (14...d6-/+) 15.g4 (15.Nf4 Rc8 16.Nh5=) 15...Rc8-+ 16.Kb1 N7g6 17.Ng3 0-0 (17...Qe7!?-+) 18.Nde4-/+ Be4 19.Ne4 Qf4 20.Nd6 Rc6 21.Bb5 (21.Qd4 f6=+) 21...Rd6!-/+ 22.Rd6 Nc4 23.Rd4 Nb2 24.Rf4 Nf4 25.Kb2 d5 26.g3 Ng6 27.f4 Ne7 (27...Rc8 28.c4-/+) 28.c4 dc4 29.Bc4 Rd8 30.Kc3 g6 (30...h6 31.b5-/+) 31.a4 Kg7 32.a5 (32.g5 Nf5 33.Rh3 Ne3-/+) 32...ba5 33.ba5 Nd5 34.Bd5 Rd5 (34...ed5?! 35.Kd4=+) 35.Kb4 e5 36.fe5 Re5 37.Rc1 Re3 38.Rc3?? (better 38.a6-+) 38...Rc3 39.Kc3 Kf6 40.Kc4? (40.Kb4 Kg5 41.Kb5 Kg4-+) 40...Kg5 41.Kb5 Kg4 42.Ka6 Kg3 43.Ka7 f5 0–1. Damia,Angelo (2210) – Salvador,Roland (2450), 3rd Lodi op, 2007. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 Nc6

5.Rb1 d6 6.Nf3 e6 7.bc5 dc5 8.Bc4 Nf6 9.d3 (9.0-0 Be7+=) 9...Be7= 10.0-0 0-0 11.Bb2 (11.Bf4 Ne8=) 11...a6= 12.a4 Nd7 13.Nd2 Nd4 (13...Qc7 14.f4=) 14.Ne2 Ne5 15.Bd4 (better 15.f4!? Nc4 16.Nc4=) 15...cd4=+ 16.Bb3 (16.Ng3 Bc6 17.f4 Nd7=+) 16...Bc6 (16...b5 17.Ng3-/+) 17.Ng3 Kh8 (17...Nd7 18.f4=+) 18.f4=+ Nd7 19.f5 Nc5 Exerts pressure on the isolated pawn 20.Qg4 Nb3 (20...Bg5!? 21.Nc4 b5=+) 21.cb3= Bd7 (21...Bg5 22.Nc4 b5 23.Ne5 Be3 24.Kh1=) 22.Nh5 Rg8 23.Nc4 ef5 24.ef5 (24.Ne5 Be8 (24...fg4?? 25.Nf7) 25.ef5 Rc8=) 24...f6 25.Nf4 (25.Ra1 g6 26.Ng3 Rc8=) 25...g6+= 26.Qe2 (26.Ne6!? Be6 27.fe6=) 26...b5=+ (worse 26...gf5 27.Nb6 Qb6 28.Qe7+=) 27.Nb6 Qb6 28.Qe7 Bf5 29.Nd5 (29.Rbc1 Rge8 30.Qf7 Rf8=+) 29...Qd8 (29...Ra7 30.a5 Re7 31.ab6-/+ (31.Nb6? Bd3 32.Rbe1 Re1 33.Re1 Rd8-+)) 30.Qf6 Qf6 31.Nf6 Bd3 32.Ng8 Kg8 (32...Bb1 33.Rb1 Kg8 34.ab5 ab5 35.Rd1=+) 33.Rbd1= Bf1 34.Kf1 Rd8 35.Ke2 Kf7 36.Kd3 Ke6 37.ab5 ab5 38.Re1 Kd5 39.Re7 h5 40.h4 (40.Re4 Kc5=) 40...Rd6 41.Re8 Kc5 42.Re4 Attacking the isolated pawn on d4 (42.Re5!? Kb4 43.Rg5-/+) 42...Kb4-/+ 43.Re5 Rb6 44.Kd4 Kb3 45.Kc5 (45.g4 hg4 46.Kc5 Rb8-+) 45...Rb8 46.Re1?? (better 46.g4-/+) 46...b4-+ 47.Re3 (47.Kd4-+) 47...Ka2 48.Re2 Ka3 49.Re6 (49.Re7 b3 50.Kc4 Rc8 51.Kd3 b2-+) 49...b3 50.Ra6 (50.Kc4 Rc8 51.Kd3 b2-+) 50...Kb2 51.Rf6 (51.Rg6 Kc2 52.Re6 b2-+) 51...Kc2 (51...Kc3 52.Rf1-+) 52.Rf2 Kd3 53.Rb2 Kc3 54.Rf2 b2 55.Rf3 Kd2 56.Kd4 0-1. Carlile,Orison (2035) - Viglundsson,B (2170), World Senior Teams +65, 2019. (=1.e4 c5 2.a3 b6 3.b4)

5.bc5 bc5 6.Rb1 Rb8 7.Bc4 g6 8.d3 Bg7 9.Nge2 d6 (9...Nf6 10.0-0+=) 10.h4 (10.Bb5 Qd7+=) 10...Nf6= 11.Nd5 Nd7 (11...e6 12.Nf6 Bf6 13.Bb5=) 12.h5 e6 13.Ne3 Nb6 (13...Nde5 14.Bb2=) 14.Ba2 (14.Bb5 0-0=) 14...d5 15.h6 Bf6 16.ed5 (16.Ng4 de4 17.de4 Qd1 18.Kd1 Rd8 19.Ke1 Be7=) 16...ed5 17.Ng4 Be7 18.Bf4 Rc8 (18...Bd6 19.Qd2=) 19.0-0 0-0 20.Re1 Qd7 (20...Re8 21.Nc3 Nd4 22.a4=) 21.Nc3 Nd4 22.a4 Ne6 23.Ne5 (23.Bg3 Rcd8+-) 23...Qd8+= 24.Bh2 (24.Bd2 Rb8+=) 24...a5 25.Qg4 Nd4? (better 25...f5!? 26.Qd1 Rf6+=) 26.Rb6!+- Qb6 27.Nd7?? (better 27.Rb1 Qa6 28.Qd7+- (28.Bd5?! Bd5 29.Nd5 Bd8=)) 27...Qd8 (27...Qb4!? 28.Re7 Qc3=) 28.Bd5+= Bd5? (better 28...Bc6 29.Bc6 Rc6+=) 29.Nd5+- (29.Nf8? Bf8 30.Nd5 f5 31.Ne7 Be7-+) 29...Bg5 (29...Nf5 30.Ne7 (30.Nf8?! Qd5 31.Qe4 Qe4 32.de4 Nd4=) 30...Ne7 31.Nf8 Kf8 32.Qg5+-) 30.Nf8 Kf8? (30...f5 31.Qg3 f4+-) 31.Bd6!! Kg8 (31...Qd6 32.Qg3 Double attack (32.Qc8 Deflection; 32.Qg3 Decoy)) 32.Be7 f5 33.Bd8 (33.Bd8 fg4 34.Bg5 Nc2 35.Rc1+-; 33.Bg5?! Qd5 (33...fg4? 34.Bd8 Rd8 35.Nf6 Kf7 36.Nh7+-) 34.Qd1 Rb8+-) 1–0. Cabarkapa,Novak (2435) – Farkas,Tibor (2315), Borise Karadzica Mem, 2017. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

5.bc5 bc5 6.Rb1 Rb8 7.Bc4 g6 8.Nf3 Bg7 9.0-0 e5 (9...Ne5 10.Qe2+=) 10.d3+- Nge7 11.Be3 d6 12.Ng5 0-0 13.Qf3 Qe8 14.Nb5 Nc8 15.Qh3 h6 (15...h5 16.Nc7 Qe7 17.Bf7 Rf7 18.Rb7 Rb7 19.Qc8 Nd8 20.Nce6+-) 16.Nf3 (16.Nc7!? Qe7 17.Nf7 Rf7 18.Rb7 Rb7 19.Qc8 Nd8+-) 16...Kh7 17.Ng5 Kg8 18.Nf3 (18.Nc7!? Qe7 19.Nf7 Rf7 20.Rb7 Rb7 21.Qc8 Nd8 22.Bf7 Kf7+-) 18...Kh7+- 19.Ng5 (19.Nc7 Qe7 20.Nd5+-) 19...Kg8+- 20.Nf3?? (better 20.Nc7 Qe7 21.Nf7 Rf7 22.Rb7 Rb7 23.Qc8 Nd8 24.Ne6+-) 20...Kh7= ½–½. Stashis,Anna – Eswaran,Ashritha, G14, 2014. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

5.bc5 bc5 6.Rb1 Rb8 7.Nf3 g6 (7...Nf6+=) 8.d4 (8.Bc4 Nf6+=) 8...Bg7 (better 8...cd4!? 9.Bf4 d6 10.Nd4 Bg7+-) 9.Bf4+- d6 10.Bb5 Kf8 11.e5?? (better 11.Bc6 Bc6 12.Rb8 Qb8 13.0-0+=) 11...Nd4-/+ 12.Nd4 cd4 13.Qd4 de5 14.Qd8 Rd8 15.Be3 Bg2 16.Rg1 Bf3 17.Ba7 e4 18.Ne2 Be5 (18...Nh6 19.Rb4-/+) 19.Rg5 (19.Bb6 Ra8 20.Bd4 Bf6-/+) 19...Bh2 (19...f6 20.Bb6 Rd5 21.Rg3-+) 20.Rc5 (20.Nd4!?-/+) 20...Bd6 21.Rc3 (21.Rc4 Nf6-+) 21...h5 (21...Nf6 22.Bb6 Rb8 23.Bc7-+) 22.Nd4 Be5 (better 22...Bg4 23.Bb6 Rb8-+) 23.Rf3? (better 23.Rc4 Bd4 24.Rd4-+) 23...ef3 (23...Bd4?! 24.Bd4 Rd4 25.Rh3-+; 23...Rd4?! 24.Bd4 Bd4 25.Rfb3=+) 24.Nc6 (24.Nf3 Bc3 25.Ke2 Nf6-+) 24...Bc3 25.Kf1 Rd6 26.a4 (26.Bc5 Rd5 27.Be3 Nf6-+) 26...h4 27.a5 (27.Bc5 Rd5 28.Be3-+) 27...Rh5 28.Kg1 Nh6 (28...Nf6 29.a6 Rb5 30.Rb5 Ng4-+) 29.a6 (29.Ba4 Ng4 30.Bb8-+) 29...Rb5! 30.Rb5 (30.Rb5 Rc6 Remove defender) 30...Ng4 (30...Rd1 31.Kh2 f5 32.Rb8 Kg7 33.Rg8 Kg8 34.Ne7 Kf7 35.Nf5 gf5 36.Bb8 Ng4 37.Kh3 Rh1 38.Bh2 Rh2) 31.Bd4 (31.Rb1 Rc6 32.Bb6-+) 31...Bd4 32.Rb4 (32.Nd4 Rd4 33.Rb1-+) 32...Bf2 33.Kh1 (33.Kf1 Rd1) 33...Rd1 0–1. Mycroft,Richard (2140) – Eckersley_Waites,Tom (2155), Varsity Oxford–Cambridge, 2007. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

5.Nf3 cb4=+ 6.ab4 Nb4 7.Bc4 (7.Ra4 e6=+) 7...e6 8.Ba3 (8.0-0 Nf6 9.e5 Ne4=+) 8...Nf6 (8...f5 9.ef5 Bf3 10.Qf3 Nc2 11.Kd1 Na3 12.fe6+-) 9.e5 (9.d3 Qc8 10.e5 Bf3 11.gf3 Nfd5-/+) 9...Ne4 (9...Qc7 10.Be6 Nc2 11.Qc2 Bf3 12.0-0 de6 13.ef6=+) 10.Ne4 Be4 11.d3 (11.Bb4!? Bb4 12.0-0-/+) 11...Bf3 12.gf3 Qg5 (12...b5 13.Bb3 a5-+) 13.Qe2 (13.Bb2 Nc6 14.Ba6 Bb4 15.Kf1 Ne5-+) 13...Nc6 (better 13...b5!? 14.Bb3 Nd3 15.cd3 Ba3-+) 14.Bb2-/+ Bb4 (better 14...Bc5 15.Qe4 Qg2-/+) 15.c3 (better 15.Kf1!?-/+) 15...Ba5-+ 16.d4?! (16.Ba6 Ne5 17.h4-+) 16...Nd4 17.Qe4 Qe5! 18.0-0-0 (18.Qe5 Nf3 Double attack (18...Nf3 Decoy)) 18...Qe4 (better 18...Nc6!? 19.Qe5 Ne5 20.Ba6-+) 19.fe4 Nc6 20.f4 (20.Ba6 Rb8-+) 20...Rc8 (20...a6 21.Be2-+) 21.Bb5 (21.Rhg1 Nb8 22.Bd3 g6-+) 21...Nb8 22.Kc2 a6 23.Be2 b5 24.Kb3 (24.Rhg1 Rg8-+) 24...0-0 (24...Bc7 25.Bc1-+) 25.Rhg1 (25.c4 bc4 26.Bc4 Rc7-+) 25...f6 (25...f5 26.c4 bc4 27.Bc4-+) 26.h4 (26.c4 bc4 27.Bc4 Rc6-+) 26...Bb6 27.Rg2 Nc6 (better 27...Bc5!? 28.c4 b4 29.f5-+) 28.Rd7 Rf7 29.Rd6 Na5 30.Kc2 (better 30.Ka2 Rc6 31.Rc6 Nc6 32.c4-/+) 30...Bc7 (better 30...Rc6 31.Rc6 Nc6-+) 31.Ra6=+ Nc4 32.Bc4 bc4 33.Rc6 (33.Bc1 e5 34.f5 Bd8=) 33...Rd8 (33...Ra8 34.Rf2=+) 34.f5 (34.Bc1!?=) 34...ef5-/+ 35.ef5 Rd5 36.Rc4 Rf5 37.Re2 (37.Ra4 Rd7-/+) 37...Rd7 38.Ba3 Kf7 39.Bc5 (39.Rd4 Rd4 40.Re7 Kg6 41.cd4 Rf2 42.Kd1 Ba5 43.h5 Kh5 44.Rg7 Rd2 45.Kc1 Rd4 46.Rh7 Kg6-/+) 39...Be5 (39...Bg3 40.Rg2 Rf4 41.Rf4 Bf4 42.Bd4-/+) 40.Ree4 (40.Bf2 g5-/+) 40...h5 41.Be3 (41.Bd4 Bg3-+) 41...Rf1 (41...g5 42.Rc8-+) 42.Bc5 (42.Ra4 Kg6-/+) 42...Rh1 43.Be3 (43.Bb6 Bg3-+) 43...Ke6 (43...Rh2 44.Kb3-+) 44.Bd4 Kf5 (44...Rh2 45.Kb3-+) 45.Be5-/+ fe5 46.Re2 Rf1 (46...Ra7 47.Rf2 Ke6 48.Rf8-/+) 47.Rce4 (47.Rg2 e4-/+) 47...Re7 48.c4 Rf4 49.Rf4 Kf4 50.Kc3 (better 50.Rg2!?-+) 50...Kf3 51.Re1?! (51.Kd2 Rd7 52.Ke1-+) 51...e4 52.Rf1 (52.c5 Kf2 53.Rh1 e3-+) 52...Ke2 (52...Kg2 53.Rb1 e3 54.c5-+) 53.Rh1 (53.Rf5 e3 54.c5-+) 53...e3 54.Rh2 (54.c5 Kf2 55.c6 e2-+) 54...Kf1 55.Kd3 (55.Rh1 Kg2 56.Re1 Kf2-+) 55...e2 56.Rh1 Kg2 1–0. Soubirou,Oriane – Milliet,Sophie, Troyes France, Roza Lallemand Memorial, 2014. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

4.Nc3 e6

5.Bb2 d6 (5...cb4!? 6.ab4 Bb4=+) 6.Nf3= Nd7 7.Bc4 Ngf6 8.Qe2 Be7 9.Ba6 Qc8 10.Bb7 Qb7 11.0-0 0-0 12.d3 Rfe8 13.bc5 Nc5 14.e5 de5 15.Ne5 Rac8 16.Rad1 Qa6 17.Nb1 Red8 18.c4 Na4 19.Ba1 b5 20.Rc1 Qb7 21.Rfe1 a6 22.Kh1 Nc5 23.Nd2 Ncd7?? (better 23...Bd6 24.d4 Be5 25.de5 Nh5 26.cb5 Nf4=+) 24.Nf7!+- Rf8 (24...Kf7 25.Qe6 Double attack) 25.Ng5 (25.Nd6! Bd6 26.Qe6 Rf7 27.Qd6 Ng4+-) 25...Ba3 26.Qe6 Kh8 27.Nf7 Rf7 28.Qf7 Bc1?? (better 28...Rf8 29.Qe6 Bc1 30.Rc1 Qc7+-) 29.Re7 (29.Re7 Rg8 30.Bf6 Nf6 31.Rb7 Bd2 32.c5+-; 29.Rc1?! Qb6 30.Ne4 bc4+-) 1–0. Paul,Nathanael (1890) – Britton,R (2200), 4NCL International (2), 2018. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

5.bc5 bc5 6.Rb1 Bc6 7.Nf3 d6 (7...Be7 8.Ne5+=) 8.Be2 (8.d4 Qa5 9.Bd2 Qa3+/-) 8...Nf6+= 9.d3 g6 (9...Be7 10.0-0+=) 10.0-0 Bg7 11.Bb2 0-0 12.Re1 Nbd7 13.Bf1 Rb8 14.Ba1 (14.Qd2 d5 15.ed5 Nd5=) 14...Qa5=+ 15.Rb8 Rb8 16.Qc1 Ng4 17.Ne2 Nge5 (17...Bh6 18.Bc3 Qc3 19.Nc3 Bc1 20.Rc1=+) 18.Ne5= Ne5 19.Bc3? (19.f4 Nd7=) 19...Qa6 (better 19...Nf3! 20.gf3 Bc3 21.Nc3 Qc3-/+) 20.Qa1= Bf8 (20...g5 21.Qc1 h6 22.d4 cd4 23.Nd4=) 21.Be5+= de5 22.Qe5 Rd8 (22...Rb6 23.Qc3+=) 23.Nf4 (23.Rb1 A) 23...Qa3? 24.Qc7 Qa2 25.Re1+- (25.Qd8?! Qb1 26.Ng3 Qb6=); B) 23...c4 24.Nd4 Be8+=) 23...Qa5 24.Rb1 Qd2? (better 24...Bg7 25.Qg5 Re8=) 25.Qc7 Rd4?? (better 25...Qc2 26.Re1 Rd6+/-) 26.Ne2 (26.Rb8 Qc3 27.Qe7 Rd8 28.Rd8 Qg7 29.Ne6 fe6 30.Qe6 Qf7 31.Qc6 Kg7+-) 26...Qc2 (26...Rd7 27.Qc6 Rd6 28.Qc5+-) 27.Nd4 (better 27.Rb8 Qd2 28.Nf4+-) 27...cd4 (27...Qb1 28.Nc6 (28.Qc6?! cd4 29.a4 Qb8=) 28...Qb6 29.Qd7+-) 28.Rb8 (better 28.Rb7 Bb7 29.Qc2 Ba3+-) 28...Qa4 (28...Qc5 29.a4!+-) 29.Qc8 (better 29.Qe7! Be8 30.Re8 Qe8 31.Qe8+-) 29...Qa3 30.Qc6 Kg7 (30...Qe7 31.e5 a5 32.Rb7+-) 31.Qa8 (better 31.Rb7 Qd6 32.Qe8 Qf4+-) 31...Bc5 (31...Qe7+-) 32.Rg8 Kh6 33.Qb7 (33.Qd8 Be7 34.Qd4 Qc1 35.Qg7 Kg5 36.Qf7 Qf4 37.Qe7 Qf6 38.f4 Kg4 39.Qf6 e5 40.Be2) 33...Be7 34.Re8 Bh4 (34...Bd6 35.Qf7 Qc5 36.Rh8 Bh2 37.Kh1+-) 35.Qf7 Qb2 (35...e5 36.g3 a6 37.Rh8 Bg3 38.h4 Bf2 39.Kg2 Kh5 40.Rh7 Kg4 41.Be2) 36.Qf8 (36.g3 a5 37.Rh8 Qf2 38.Kf2 Bg3 39.hg3 e5 40.Qh7 Kg5 41.Qh4) 36...Kh5 37.Qf3 Kh6 38.Re6 (38.g3 Qa2 39.Qf8 Kh5 40.Qf4 Bf6 41.g4 Kh4 42.Qh6 Kg4 43.Qh3 Kg5 44.f4 Kf4 45.Qg3) 38...Qd2 (38...Kg7+-) 39.g3 (39.Qf8 Kh5 40.Re5 Bg5 41.Qg7 Qf4 42.Qh7 Kg4 43.h3) 39...Bg5 40.Re8 (40.Qf8 Kh5 41.Qg7 Qf2 42.Kf2 Be3 43.Kf3 Bh6 44.g4 Kg5 45.Qf6) 40...Qc1 41.Qf8 Kh5 42.Kg2 (42.Qf7 Kh6 43.Rh8 Qf1 44.Kf1 Kh5 45.Rh7 Bh6 46.Qf3 Kg5 47.h4) 42...Qd2 (42...Bd8 43.Be2 Kg5 44.Re5) 43.Qf3 (43.Qg7 Qf2 44.Kf2 Be3 45.Kf3 Bh6 46.g4 Kg5 47.Qe7) 43...Kh6 44.Qf8 Kh5 45.h4 (45.Qg7 h6 46.Rg8 Qf2 47.Kf2 Be3 48.Kf3 a5 49.Qg6) 45...Be3 (45...Qc2 46.Re5 Qf2 47.Kf2 Kg4 48.Rg5) 46.g4 (46.Re5 g5 47.Qf7 Kh6 48.Re6) 46...Kh4+- 47.Qf6 Bg5 48.Qf3 Be3 (48...Bf4 49.Qh3 Kg5 50.Qh7 Bg3 51.Rf8 Qf2 52.Rf2 Be5 53.Kh3 Bg3 54.Kg3 a5 55.Qh4) 49.Qh3 (49.Be2 Bf4 50.g5 Qe2 51.Qe2 Kg5 52.Rd8 Be5 53.Qf3 Kh4 54.Rd5 h6 55.Re5 a5 56.Qf4) 49...Kg5 50.Rf8 Bf4 (50...Qb4 51.Rg8 Qe7 52.fe3 Qd7+-) 51.Qf3 (51.Qh7!? Qd1 52.Qe7 Kg4+-) 51...h6 52.Be2 a5 53.e5 a4 (53...Qc1 54.Qd5 Kh4 55.Qe4 Qe1 56.Qg6 Qf2 57.Kf2 Be3 58.Kf3 h5 59.Qh5) 54.e6 h5 (54...Qc1 55.Kh3 Qh1 56.Qh1 h5 57.Qd5 Kh6 58.Rh8 Kg7 59.Qd4 Be5 60.Qe5) 55.gh5 a3 (55...Kh6 56.Qe4 gh5 57.Rf6 Kg7 58.Qg6 Kh8 59.Rf8) 56.Rg8 (56.Qg4 Kh6 57.Qg6) 56...Kh4 (56...Qd3 57.Bd3 Kf6 58.Qf4 Ke6 59.Rg6 Ke7 60.Rg7 Ke6 61.Bc4) 57.Rg6 (57.Qg4) 57...Bg5 (57...Qe2 58.Qh3) 58.Qg4 (58.Qg3) 1-0. Yi,Danny (2265) - Navalgund,N (2285), Titled Tue, 2020. (=1.e4 c5 2.a3 b6 3.b4)

5.bc5 bc5 6.Nf3 Nc6 7.Rb1 Rb8 8.Be2 Nd4 9.0-0 Ne7 10.Nd4 cd4 11.Nb5 Nc6 12.e5 a6 13.Nd6 Bd6 14.ed6 0-0 15.Bf3 f5 (15...Qa5 16.Re1=+) 16.c4 (16.c3 Qf6=) 16...Na5=+ 17.Bb2 (17.Bb7!? Nb7 18.d3=) 17...Bf3-/+ 18.Qf3 Qf6 (18...Nc4 19.Bd4 Qa5 20.Qd3-/+) 19.Qd3=+ e5 20.c5 Nb3 21.Qc4 (better 21.Qc2!?-/+) 21...Qf7-+ 22.Qa6? (better 22.Qc2 Qd5 23.Ba1-/+) 22...Nd2 (22...Nc5?! 23.Qe2 Qd5 24.d3-+) 23.Qd3 Nb1 24.Bc1 (24.Qb1 Qb3 25.Qe1 Qb2 26.Qe5-+) 24...Nc3 Black plans e4 25.Bd2 e4 26.Qc2 Qc4 27.Bc3 Qc3 (27...dc3 28.c6-+) 28.Qa4 (28.Qa2 Kh8-+) 28...d3 29.Qd7 (29.h3 Qc5 30.Qd7 Qa3 31.Qe6 Kh8-+) 29...d2 (better 29...Qc4 30.g3-+) 30.Qe6 Kh8 31.d7 (31.Qa2 e3 32.fe3 f4-+) 31...Qd3 (better 31...Rb1! 32.Qa6 d1Q-+) 32.Qd6 Qd6 33.cd6 Rfd8 34.Rd1 Rd7 (34...f4 35.g4 Rb2 36.f3-+) 35.Kf1 Rd6 36.Ke2 Ra8 37.g3 (37.Rd2 Rd2 38.Kd2 Ra3-+) 37...Ra3 38.g4 (38.Rd2 Rd2 39.Kd2 g5-+) 38...Rc3 (better 38...f4 39.Rb1 d1Q 40.Rd1 f3 41.Ke1 Rd1 42.Kd1-+) 39.Rb1 (39.Rd2 Rd2 40.Kd2 Rd3 41.Ke2 fg4-+) 39...g6 40.Rb8 (40.Rd1 Rc2 41.h4-+) 40...Kg7 41.Rb7 (41.Rb1 Rc1 42.Ke3 Kf6 43.g5 Ke6 44.f3 d1Q 45.fe4 Qd2 46.Kf3 Rd3) 41...Kf6 42.g5 (42.f4 d1Q 43.Kf2 Rd2) 42...Kg5 43.h4 (43.f3 d1Q 44.Kf2 Qf3 45.Ke1 Rd1) 43...Kf4 44.Rb1 (44.Kf1 d1Q 45.Kg2 Qg4 46.Kf1 Rd1) 44...Rc1 45.h5 (45.Rc1 dc1Q 46.h5 Rd2) 0-1. Riehle,Marco (2345) - Bodnaruk,A (2440), Titled Tuesday, 2021. (=1.e4 c5 2.a3 b6 3.b4)

5.bc5 Bc5 6.d4 Be7 7.Nf3 d6 8.Bd3 (8.d5 Nf6+=) 8...Nd7 (8...Nf6 9.0-0=) 9.0-0 (9.Ne2 Ngf6 10.Ng3 d5=) 9...Ngf6 10.a4 (10.Bf4 0-0=) 10...0-0 11.Bd2 e5 (11...a6 12.Qe2=) 12.d5 (12.a5 ba5 13.Qe2 Rb8+=) 12...Nc5 13.Qb1 (13.a5 Nd3 14.cd3 Ba6=) 13...Nfd7 14.a5 ba5 (14...f5 15.ef5 ba5=) 15.Nb5 (15.Be3!?=) 15...a4 (15...f5 16.Ba5 Qc8 17.ef5 Bd5 18.Be2=+) 16.c4 (16.Bb4 Rb8 17.Na7 f5=+ (worse 17...Nd3 18.cd3 Ba8 19.Ra4+=)) 16...f5 (16...Rb8 17.Qc2=+) 17.ef5 Nd3 (17...Rb8 18.Qc2 Nd3 19.Qd3=+) 18.Qd3= Nc5 19.Qe3 (19.Qe2 Rf5 20.Bb4 a6=) 19...Rf5 (19...Rb8 20.Rfb1 Ba6 21.Bb4 Bb5 22.cb5 Rb5 23.Bc5 Rc5 24.Rb7=+) 20.Bb4= a6 21.Nc3 Attacks the isolani on a4 21...Rc8 (21...Nd7 22.Rfb1 (worse 22.Ra4 a5-+) 22...Bc8 23.Ra4=) 22.Bc5 (22.Rfb1 Ba8=) 22...Rc5 23.Ra4 Qc7 (23...Bc8 24.Ne4 Rc7 25.Rb1=) 24.Rb1+= Bc8 25.Ne4 Ra5 26.Ra5 Qa5 27.c5 dc5 28.d6 Bf8 29.Qb3 (29.Rb8 Be6 30.Nc5 Rf3 31.gf3 Qa1 32.Kg2 Bc4+-) 29...Kh8 30.Qd5 Bd7? (better 30...Qa4+-) 31.Ne5+- (31.Qc5?! Qa2 32.Rc1 Qe6+-) 31...g6 (31...Be8 32.Qe6 Re5 33.Qe5 Qd8 34.Qc5 Qa8+-) 32.g4 Bc6 33.Qc6 (33.Nc6?! Rd5 34.Na5 Bd6+-) 33...Re5 34.Rb8 (better 34.Qa8 Kg8 35.d7+-) 34...Qe1 35.Kg2 Re4 36.Rf8 Kg7 37.Qc8 Rg4 38.Qg4 Kf8 (38...Qd2 39.Qd7 Kf8 40.Qe7 Kg8+-) 39.Qc8 Kf7 (39...Kg7 40.Qc7 Kh6 41.d7 (41.Qc5?! Qe4 42.f3 Qd3+=) 41...Qe4 42.Kg3 Qd3 43.f3+-) 40.Qc7 (40.Qa6?! Qe4 41.f3 Qc2 42.Kg3 Ke6=; 40.Qc5?! Qe4 41.f3 Qe2 42.Kg3 Ke6=+) 40...Kf6 41.d7 (41.Qc5?! Qe4 42.f3 Qe2 43.Kg3 Ke6=+) 41...Qe4 42.Kg3 Qd3 43.f3 1–0. Alexeev,Alexey (2295) – Dzhumagaliev,Yan (2400), RUS Ch Rapid, 2017. (=1.e4 c5 2.a3 b6 3.b4 Bb7)

5.Nf3 Nc6 (5...cb4 6.ab4 Bb4 7.Bb2+=) 6.Rb1 (6.bc5 Bc5 7.d4 Be7+=) 6...d6 (better is 6...cb4!? 7.ab4 Bb4-/+) 7.Bc4 Nf6 8.h3 (8.0-0 Be7=) 8...Be7 9.d3 (9.bc5 dc5 10.0-0 0-0=) 9...0-0 (better is 9...cb4 10.ab4 d5-/+) 10.Be3? (better is 10.b5 Nd4 11.0-0+=) 10...d5-+ 11.b5 (11.bc5 dc4 12.cb6 ab6 13.Bb6 Qc8-+) 11...Nb8 (11...dc4?! 12.bc6 Ba6 13.dc4+=) 12.e5 Ne8 (12...dc4?! 13.ef6 Bf6 14.Ne4-+) 13.0-0 dc4 14.dc4 Nd7 15.Qd3 (15.Bf4-+) 15...Bf3 16.gf3 Ne5 17.Qe4 Bf6 18.Bf4 Nd6 19.Qe2 Ng6 20.Bd6 Qd6 21.Ne4 Qe5 22.Kh1 (22.Rfd1 Qf5 23.Nf6 Qf6-+) 22...Nf4 23.Qe3 Nh3 24.Kg2 (24.Ng3-+) 24...Nf4 25.Kg1 Qf5 (better is 25...Bg5 26.Ng3 Nh3 27.Kg2 Be3 28.fe3 Qe3 29.Kh3 Qa3 30.Ne4-+) 26.Ng3 Qg5 27.Rbd1 (27.Rfd1 Bd4 28.Rd4 cd4-+) 27...Rad8 (better is 27...Qh4 28.Qe4 Bg5 29.Rd3-+) 28.Rd8 (28.Rfe1-+) 28...Rd8 29.Qe4 Bd4 30.Rd1 Qg3 31.Kf1 Qf2 0–1. Horvath,Attila Bela – Isepy,Tamas (2125), HUN–chT2 Erkel, 2005. (=1.e4 c5 2.b4 b6 3.a3 Bb7)

3.a3 e6

4.Bb2 Bb7 5.Qg4 (better 5.bc5!? Be4 6.Nc3=) 5...Nf6-/+ 6.Qh4 (6.Bf6 Qf6 7.c3 cb4 8.ab4 Bb4-/+) 6...Ne4 7.Qd8 Kd8 8.d3 Nf6 9.b5 d5 10.Nd2 Nbd7 11.Ngf3 Bd6 12.c4 (12.Be2 a6-/+) 12...Kc7 (12...d4 13.Be2-+) 13.a4-/+ Rhe8 14.Be2 (14.a5 d4-+) 14...e5 15.cd5 Nd5 16.0-0-0 (16.g3!?-+) 16...Nf4 17.Bf1 f6 18.g3 Ne6 19.Rg1 (19.Ne4 a6-+) 19...Nd4 20.Nd4 ed4 21.Nc4 (21.Bg2 Bg2 22.Rg2 a6-+) 21...Ne5 (21...Bf3 22.Bg2 Bd1 23.Kd1-+) 22.Nd6 (22.Bg2 Bg2 23.Rg2 Nf3-+) 22...Kd6 23.Bh3 (23.Re1 Nf3 24.Re8 Re8-+ (24...Ng1?! 25.Ra8 Ba8 26.f4-+)) 23...Nf3 (23...Bf3 24.Rd2-+) 24.Rh1 (24.Bg2 a6 (24...Ng1?! 25.Bb7 Nh3 26.Ba8 Ra8 27.f4-+) 25.Bf3 Bf3-+) 24...Re2 25.Rdf1 (25.Bg2 a6 26.Bf3 Bf3-+) 25...Rae8 (better 25...Ne5 26.Bf5 Bh1-+) 26.Ba3 (26.Bg4-+) 26...Ra2 27.Bb2 0-1. blitzbullet (2445) - debik (2460), Rated Blitz game, lichess.org, 2016. (=1.e4 c5 2.b4 b6 3.a3)

4.Nc3 Bb7 5.Nf3 Nc6 6.b5 Nd4= 7.Bb2 Nf3 8.Qf3 Nf6 9.Qg3 (9.Bd3!?=) 9...Ne4=+ 10.Ne4 Be4 11.d3 (11.Bg7?? Rg8-+) 11...Bb7 12.Be2 f6 (12...d5 13.Bf3-/+) 13.Bf3 (13.Bh5 Ke7=) 13...Bf3=+ 14.Qf3 Be7 15.0-0 0-0 16.Rae1 e5 (16...a6!? 17.ba6 Ra6-/+) 17.Qd5 Kh8 18.f4 d6 19.fe5 de5 20.Qe4 Qd7 21.Re3 g6 (21...Qb5!? 22.Rh3 h6-/+) 22.Rh3 (22.Be5 Rae8 23.Bc3 Bd8=) 22...Kg7 (22...Qb5?? 23.Qg6 Rf7 24.Qf7 Qd3 25.cd3 c4 26.Rh7) 23.Re1 (23.Qh4 h5=) 23...Bd6 24.Qe3 (24.Bc1 h5=) 24...Rae8 25.Qh6 Kg8 26.Rf1 Qg7 27.Qe3 c4 28.dc4?? (better 28.Qe4 Bc5 29.Kh1 cd3 30.Rd3-/+) 28…Bc5-+ 0-1. elgranlucas (2345) - opperwezen (2735), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.a3)

4.c4 Bb7 5.d3 (5.bc5 Be4 6.Nc3 Bc6=) 5...d6 (5...cb4!? 6.Nf3 ba3 7.Na3 d5 8.ed5 Bb4 9.Bd2 Bd2 10.Qd2 ed5=+) 6.b5 (6.Qa4 Qd7 7.Qd7 Nd7=) 6...Nf6 (6...Be7 7.Nf3=) 7.Nf3 Be7 8.Bb2 (8.Be2 0-0=) 8...0-0 9.Be2 Nbd7 (9...a6 10.ba6 Na6 11.0-0=) 10.0-0= d5 (10...a6=) 11.Nbd2 (11.ed5!? ed5 12.d4=) 11...de4=+ 12.de4 Qc7 (better 12...Ne4!? 13.Ne4 Be4=+) 13.Qc2 Nh5 (13...e5 14.Rfd1=) 14.Rfe1 (14.Qc3=) 14...Ndf6 (14...Nf4 15.Qc3 Bf6 16.e5 Ne2 17.Re2=) 15.e5 (15.Rad1 Nf4+=) 15...Ng4 (15...Nd7 16.Bd3 h6 17.Bh7 Kh8 18.Be4+=) 16.Bd3+- g6 17.Ne4 (17.Be4 Rfd8+-) 17...Ng7 (17...Rfd8 18.Rad1 Nf4 19.Bf1 Rd1 20.Rd1+-) 18.Rad1 Rad8 (18...f5 19.ef6! Bf6 20.Nf6 Rf6 21.Be4 Rf3 A) 22.Bf3? Qh2 23.Kf1 Bf3 24.gf3 Nh5 25.Re6 Qh1 26.Ke2 Nf4 27.Kd2 Rd8 28.Kc1 Rd1 29.Qd1 Qd1 30.Kd1 Nf2 31.Ke1 N2d3 (31...Ne6?! 32.Kf2 Nd4 33.Ke3-/+) 32.Kd2 Nb2-+ (32...Ne6?! 33.Kd3 h5 34.Be5-/+); B) 22.gf3 Qh2 23.Kf1-/+) 19.h3 Nh6 20.Nf6 (20.Qc1 Nhf5 21.Nf6 Bf6 22.ef6 Ne8+-) 20...Kh8 (20...Bf6 21.ef6 Ngf5 22.Ne5+-) 21.Be4 (21.Ng5 Bf6 22.ef6 Ngf5+-) 21...Nhf5 22.Bb7 Qb7 23.Rd8 (23.Qe4 Qe4 24.Ne4 Kg8+-) 23...Rd8 24.Rd1 Nd4 (24...Rd1 25.Qd1 h5 26.g4 hg4 27.hg4+-) 25.Nd4 cd4 26.Bd4 Nf5 (26...Qc7 27.Bb2+-) 27.Bb2+- Nh4 (27...Qc7 28.Rd8 Qd8 29.Ne4+-) 28.f3 (better 28.Rd8!? Bd8 29.Qe4 Qe4 30.Ne4+-) 28...Qc7 (better 28...Rd1 29.Qd1 Bf6 30.ef6 Qc8+-) 29.Kh2?? (29.Rd8 Qd8 30.Ne4 Nf5+-) 29...Nf5?? (better 29...Rd1 30.Qd1 Bf6-+) 30.Rd8+- Qd8 31.Ng4 (31.Ne4 Kg8+-) 31...Nd4 (31...h5 32.Nf2 Ne3 33.Qd3 Qd3 34.Nd3 Nc4 35.a4=) 32.Qf2 (32.Qd3 Nf5 33.Qd8 Bd8+-) 32...Bc5 (better 32...Nb3 33.Qe3 Na5+-) 33.Ne3?? (33.Bd4 Bd4 34.Qg3=) 33...Nf5-+ 34.Bc1 Qd3 (34...Qd3 35.Qf1 Qc3 36.Nf5 gf5+=) 0–1. Goldmund,Heike – Hilbert,Stephan J, FICGS, 2016. (=1.e4 c5 2.b4 b6 3.a3 e6)

4.bc5 bc5 5.Nc3 a6+= (5...Nc6 6.Rb1 d5 7.Bb5 Nge7 8.Qh5 a6 9.Ba4 d4 10.Qc5 Bd7+=; 5...Ne7 6.Rb1 d5 7.Nf3 d4 8.Na2 Nec6 9.Bb5 a6 10.Ba4 Bd7=; 5...d6 6.Rb1 Nd7 7.Nf3 Ngf6 8.Bb5 Rb8 9.Qe2 a6 10.Bd7 Nd7+=) 6.Rb1 d5 7.Nf3 Nc6 8.Qe2 Nge7 9.Bb2 Rb8 10.Qd1 d4=.

4.bc5 bc5 5.Nf3 Bb7 (5...Nc6 6.Bb5 Bb7 7.Nc3 Nd4 8.Rb1 Nb5 9.Rb5 Bc6 10.Rb2 Nf6=; 5...d5 6.ed5 ed5 7.Bb5 Bd7 8.Bd7 Nd7 9.0-0 Qf6 10.Re1 Ne7+=; 5...a6 6.Nc3 d5 7.Rb1 Nc6 8.ed5 ed5 9.Be2 c4 10.Bb2 d4=) 6.Nc3 Nc6 7.Bc4 Nf6 8.Rb1 Rb8 9.0-0 Na5 10.Qe2 Nc4=.

4.Nf3 cb4 5.ab4 Bb4 6.c3=+.

4.Nf3 Qc7 5.d3 (5.bc5 bc5 6.Nc3 Bb7+=) 5...Nc6 (5...cb4!? 6.Be2 Bb7=+) 6.b5+= Nce7 7.Bb2 d6 8.Nc3 Bb7 9.g3 e5 10.Bg2 g6 11.0-0 Bg7 12.Re1 Nf6 13.Nd5 (better 13.a4!?=) 13...Ned5 14.ed5 Nd5 (worse 14...Bd5 15.Ne5 0-0 16.Ng4 Bg2 17.Nf6 (worse 17.Kg2 Ng4 18.Bg7 Nf2 19.Kf2 Kg7=+; worse 17.Bf6 Bh3 18.Bg7 Qb7=) 17...Bf6 18.Bf6+=) 15.d4 cd4 16.Nd4 0-0 17.Nc6 (17.Nb3!? Nc3 18.Bc3 Bg2 19.Kg2 Qc3 20.Qd6 Qc2 21.Qb4-/+) 17...Bc6-/+ 18.bc6 Ne7 19.a4 (19.Qd2 Nc6 20.Rad1 Rad8-+) 19...Nc6-+ 20.Ba3 Rad8 21.Qd5 Ne7 22.Qd2 (22.Qb3 Rd7-+) 22...Nf5 (22...e4 23.Be4 Ba1 24.Ra1-+) 23.Rad1 Rfe8 (23...Qc4 24.a5-+) 24.c3 h5 (24...Qc4 25.Bb4-+) 25.h3 (25.Be4 d5! 26.Bd5 e4-+) 25...a6 (25...d5!? 26.Bd5 e4 27.Qa2-+) 26.Bd5 Ne7 27.Bg2 d5 28.g4? (better 28.Be7 Re7 29.Bd5-/+) 28...hg4-+ 29.hg4 e4 30.Bb2 Nc6 31.Qf4 (31.Qe2 Qc8-+) 31...Ne5 (better 31...Qf4 32.g5 Ne5-+) 32.Qg3 Qc6 33.Bc1 (33.a5 Nc4 34.Ba1 Na5-+) 33...Nc4 (33...Nd3!? 34.Rf1-+) 34.Bg5 Be5 (34...Rd7 35.Ra1-+) 35.Bf4 (35.f4 f6 36.fe5 fg5-+) 35...Bf4 (35...Qa4?! 36.Be5 Ne5 37.Be4 Ng4 38.Bd3-+) 36.Qf4 Qd6 (better 36...Nb2 37.Rd4 Nd3 38.Qe3 Ne1 39.Qe1-+) 37.Qg5 Qf6?? (better 37...Qc5-+) 38.Qf6+- Rd6 39.Qd4 1-0. lamorocha (2315) - opperwezen (2835), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.a3)

4.f4 cb4 5.ab4 Bb4 (5...Bb7 6.Ra4 Be4 7.Nc3 Bb7 8.Bb2 a6 9.b5 Nf6 10.ba6 Na6-/+) 6.Bb2 Nf6 7.Ra4 Be7 8.e5 Nd5 9.c4 Nb4 10.Qb3 N4a6-/+.

4.f4 cb4 5.c3 Bb7 (5...ba3 6.Ba3 Ba3 7.Na3 Nf6 8.e5 Ne4 9.Nb5 0-0 10.Nf3 Ba6+=) 6.ab4 Be4 7.d3 Bd5 8.Nf3 a5 9.ba5 Ra5 10.Ra5 ba5-/+.

4.f4 cb4 5.e5 Nh6 (5...d5 6.ab4 Bb4 7.Ba3 Qe7 8.Qg4 f5 9.Qh5 g6 10.Qf3 Ba6+=; 5...Bb7 6.Nf3 Nh6 7.Be2 Nf5 8.0-0 Bc5 9.Kh1 Nc6 10.ab4 Bb4-/+; 5...Nc6 6.Nf3 Bb7 7.Be2 Bc5 8.ab4 Nb4 9.d4 Be4 10.Na3 Be7+=) 6.Nf3 d5 7.ab4 Bb4 8.Ba3 Qe7 9.Be2 Ba6 10.0-0 Nf5-/+.

4.f4 cb4 5.Nf3 Qc7 (5...Bb7 6.e5 a6 7.d4 ba3 8.Bd3 b5 9.Ba3 Ba3 10.Ra3 d6+=; 5...ba3 6.e5 Ne7 7.d4 Bb7 8.Be2 Nf5 9.0-0 Nc6 10.c3 Be7-/+; 5...d5 6.e5 Nh6 7.ab4 Bb4 8.Ba3 Ba3 9.Ra3 0-0 10.d4 Nc6+=) 6.e5 Bb7 7.Be2 Nc6 8.0-0 Nge7 9.c3 bc3 10.Nc3 a6-/+.

4.f4 Bb7 5.bc5 Be4 6.Nc3 Qh4 7.g3 Qf6 8.Nf3 Bc5 9.Bb2 Bf3 10.Qf3 Nc6+=.

4.f4 Bb7 5.e5 Qh4 (5...cb4 6.Nf3 a6 7.d4 ba3 8.Bd3 Nc6 9.Ba3 Nb4 10.0-0 f6+=) 6.g3 Qd8 7.Nf3 cb4 8.ab4 Bb4 9.Ba3 Nc6 10.Bg2 d6+=.

4.f4 d5 5.e5 (5.bc5 de4 (5...bc5 6.e5 Nc6 7.Nf3 Bb7 8.Be2 Rb8 9.0-0 Nge7 10.Nc3 d4+=) 6.cb6 ab6 7.d4 Nf6 8.Nh3 Bd6 9.Be2 Nc6 10.Nc3 0-0+=; 5.ed5 ed5 (5...Qh4 6.g3 Qf6 7.Nc3 cb4 8.ab4 Bb4 9.Bb2 Bb7 10.Bg2 Kf8=; 5...Qf6 6.d4 ed5 7.Nc3 Qe6 8.Qe2 Nf6 9.bc5 bc5 10.Nf3 Nc6=) 6.Bb2 Qe7 7.Qe2 Bf5 8.Kd1 Nd7 9.Nc3 Ngf6 10.bc5 bc5+=) 5...cb4 6.ab4 Bb4 7.c3 (7.Ba3 Qe7 8.Qg4 f5 9.Qh5 g6 10.Qf3 Ba6+=) 7...Be7 8.d4 (8.Qg4 Bf8 9.Nf3 Nh6 10.Qh5 a6+=) 8...f5 (8...Nh6 9.Bd3 Nf5 10.Nf3 Bh4-/+) 9.Bd3 (9.Ba3 a6 10.Bd3 Bh4+=) 9...Nh6 (9...a5 10.Nf3 Ba6+=) 10.Nf3 (10.Qh5 Nf7+=) 10...Nf7 (10...0-0+=) 11.0-0 0-0 12.Ra2 Bd7 13.h3 Nc6 14.g4 g6 15.Rg2 Kh8 16.Kh1 Qc7 17.Rfg1 Rg8 18.Qe1 Rae8 19.Qg3 (19.gf5 gf5 (worse is 19...ef5 20.e6 Nd6 21.ed7 Qd7 22.Ne5+/-) 20.Ba3 Rg2 21.Rg2 Qd8+=) 19...Qd8 20.Rh2 Na5 21.h4 Nh6 22.Ng5 Bg5 23.hg5 Ng4 24.Rh4 Nc4 25.Be2 a5 26.Bg4 fg4 27.Qg4 b5 28.Rg2 Re7 29.Rgh2 b4 30.cb4 ab4 31.R2h3 Qb6 32.Qg1 Ba4 33.Qh2 Rgg7 34.f5 ef5 35.Nd2 Nd2 36.Qd2 Rc7 37.e6? Qe6 38.Re3 Qc6 39.Re1 Qc3 40.Qf2 Rge7 41.Bd2 Re1 42.Qe1 Qf3 43.Kg1 Re7! 44.Qe7 Qg3 45.Kh1 Qh4 46.Kg1? Qg3?? 47.Kh1= Qf3 48.Kg1?? Qd1-+ 49.Be1 Qd4 50.Bf2 Qg4?? 51.Kh2= Qh5 52.Kg2 Qg4 53.Kh2 Qh5 54.Kg1 Qg4 ½–½. Zala,G (2020) – Grimm,D (1875), FSFMA October, 2010. (=1.e4 c5 2.b4 b6)

3.Bb2 Bb7

4.Bc4 Be4 5.Bf7 Kf7 6.Qh5 g6 7.Qg4 Nf6 8.Bf6 ef6 (worse is 8...Kf6 9.Qe4 Nc6 10.b5+=) 9.Qe4 Qe7 10.Qe7 Be7 11.bc5 Bc5 12.Ne2 Re8 13.c3 Nc6 14.a4 Re7 15.d4 Bd6 16.Ra2 Rae8 17.f3 h5 18.Kf2 Na5 19.g3 Nc4 20.Re1 Ne3 21.Rg1 h4! 22.Nc1 (22.gh4 Bh2) 22...hg3 23.hg3 Rh8 24.f4 Rh2 25.Kf3 Nc2 26.Rc2 Rc2 0–1. Khadzh Khamed,Naser (1995) – Rotaenko,Petr, Sakharov Memorial op 3rd, 2004. (=1.e4 c5 2.b4 b6 3.Bb2 Bb7)

4.bc5 Na6 5.Nc3 Nc5+=.

4.bc5 bc5 5.Nc3 e6 6.Nf3 d6 7.Bb5 Nd7 8.d4 cd4+= 9.Qd4 Be7 10.Qg7+/- Bf6 11.Qg3 Qa5? 12.e5 de5 13.Ne5 Ke7 14.Ba3!! (14.Ba3 Qa3 15.Nd5 (15.Bd7?? Qc5 16.f4 Bg2-+) 15...Kd8 16.Qa3 Be5 17.Qa5 Kc8 18.f4 Bd5 19.fe5+-; 14.Bd7?! Qe5 15.Qe5 Be5+=) 1–0. Neijhof,Ron A. van (2015) – Vedrickas,Tautvydas (2030), EU/WS/O/013 ICCF, 2008.

4.bc5 Be4 5.Nc3 Bc6 6.d4 bc5 7.d5 Bb7 8.Rb1 Ba6 9.Ba6 Na6 10.Nf3 Nf6 11.0-0 e6 12.Re1 Bd6 13.Qe2 Nc7 14.Rbd1 0-0 (14...Ncd5? 15.Nd5 Nd5 16.Rd5+-; 14...Nfd5? 15.Nd5 Nd5 16.Rd5+-) 15.de6 de6 16.Ng5 Qe7 17.Ba3 Rfd8 18.Qc4 Qf8 19.Nce4 Be7 20.Nf6 Bf6 21.Bc5 Be7 22.Be7 Qe7 23.Nf3 Rac8 24.Rd8 Qd8 25.Qb3 Qd5 26.c4 Qc5 27.Re5 Qb6 28.c5 (better is 28.Qb6!? ab6 29.Kf1=) 28...Qb3-/+ 29.ab3 Nd5 30.Re1 Rc5 31.Rb1 Rb5 32.Kf1 Kf8 33.Ke1 Ke7 34.Kd2 h6 35.Nd4 Rb6 36.g3 Rd6 37.Nb5 Ra6 38.Rb2 f5 39.Rc2 g5 40.Ke2 Kf6 41.f3 h5 42.h3 Rb6 43.Nd4 h4 44.gh4 gh4 45.Rc4 Nf4 46.Kf1 Nh3 47.b4 Ng5 48.f4 Ne4 49.Kg2 Kg6 50.Kh3 (50.Nf3 Kh5 51.Ne5 Rb7-+) 50...Rd6 51.Nc6 Rd3?? (better is 51...Kh5 52.Ne5 Rd2-+) 52.Kh4-/+ Ra3 (better is 52...Rd1!? 53.Ne5 Kf6-/+) 53.Ne5= Kf6 54.Rc7 Nd6 55.Rd7 Ra6 1–0. Landenberger,Laszlo (2110) – Toth,Sarolta, Miskolc Avas op, 2004. (=1.e4 c5 2.b4 b6 3.Bb2 Bb7)

4.d3 cb4+= 5.a3 e6 6.ab4 Bb4 7.c3 Be7 8.Nd2 Nf6 9.f4 Qc7 10.Ne2 d6 11.Rg1 Nbd7 12.g4 Nc5 13.Nd4 a6 14.g5 Nfd7 15.Qe2 White prepares e5 15...d5 16.e5 g6 17.Nc2 b5 18.Ba3 Nb6 19.Ne3 Nca4 20.c4 dc4 21.dc4 b4 22.Bc1 Nc3 23.Qd3 Rd8 24.Qc2 h6 25.h4 hg5 26.hg5 Bc5 27.Rg3 Be3 28.Re3 Rh2 29.Rh3?? Rh3 30.Bh3 Qc5 (30...Qc5 31.Nf1 Rd1 32.Qd1 Nd1-+) 0–1. Buryshin,V (1980) – Strygin,A (2225), ch–UKR b18, Kyiv UKR, 2010. (=1.e4 c5 2.b4 b6)

4.d3 cb4!? 5.Nf3 Nf6+=.

4.d3 e6 5.b5= d5 6.Nd2 Nd7 7.g3 de4 8.de4 (worse is 8.Ne4 f5 9.Qh5 g6-+) 8...Ngf6 9.Bg2 Qc7 10.Ne2 h5 11.0-0 h4 12.c4 (12.Nc4!?+=) 12...Rd8 13.Qc2 Be7 14.Rae1 hg3 (14...h3 15.Bh1-/+) 15.fg3+= Ne5 16.Nf4 Bd6 (16...Rd2 17.Qd2 Nc4 18.Qe2 Nb2 19.e5 Bg2 20.Kg2+= (worse is 20.Ng2 Nd5-/+)) 17.Qc3 Rd7 18.Re2 (18.h3 0-0=) 18...0-0 (18...Neg4 19.Nf3 Bf4 20.gf4=) 19.h3 (19.Nf3!? Nf3 20.Rf3 (worse is 20.Qf3 Be5-/+) 20...Bf4 21.Rf4=) 19...Rfd8-/+ 20.Bc1 (20.a4 a5-/+) 20...Bf8 (20...Be7!?-+) 21.Nf3-/+ Nf3 22.Qf3 Rd1 (22...Bd6 23.g4 Be5 24.g5+=) 23.Kh2 (better is 23.Bb2!? R1d4 24.Bd4 cd4 25.Rb1+=) 23...Rf1-/+ 24.Qf1 Bd6 25.Re1 (25.e5!? Be5 26.Bb7 Bf4 27.Bf4 Qb7 28.Bg5-/+) 25...Be5-+ 26.Qe2? (26.h4 Rd4-+) 26...Rd4?? (better is 26...g5 27.Rf1 gf4 28.gf4 Bd4-+) 27.Be3-/+ Rd7 28.Bc1? (28.h4 Be4 29.Be4 Ne4-+) 28...Qd6?? (better is 28...g5 29.Nh5 Nh5 30.Qh5 Bg3 31.Kh1 Qe5-+ (31...Be1?! 32.Qg5 Kh7 33.Qh5 Kg8 34.Qg5 Kf8 35.Qh6 Kg8 36.Qg5=)) 29.Rf1 Qd4 30.Be3 Qc3 31.Rc1 Qa3 32.Bf2?? Qc1 (32...Qc1 33.Be3 Qc3-+) 0–1. Stoppel,Mariusz (2045) – Ivanisevic,Ivan (2625), Warszawa Poland, Euro Rapid Ch, 2013. (=1.e4 c5 2.b4?? b6?? 3.Bb2 Bb7)

4.d3 e6 5.b5 d6=.

4.d3 e6 5.bc5 bc5 6.Nf3 Nc6=.

4.d3 e6 5.bc5 bc5 6.f4 Qb6 7.Bc3 d5 8.ed5 Bd5 (8...ed5 9.d4=+) 9.Nf3 Nd7 10.d4 (10.Nbd2 Ngf6=) 10...Ngf6=+ 11.Nbd2 Be7 12.Rb1 (12.Nc4 Qc7 13.Nfe5 Bc4 14.Bc4 cd4 15.Qd4 Rc8-/+) 12...Qc6 (12...Qc7 13.Ne5 Ba2-/+) 13.Bc4? (13.Bb5 Qc7 14.dc5 0-0=+ (14...Qc5?! 15.Bd4 Qc7 16.c4=; worse 14...Bc5 15.Be5 Bd6 16.Bf6 gf6 17.c4=)) 13...0-0 (13...Bc4!? 14.Nc4 cd4 15.Qd4-+) 14.Bb5 (14.Qe2!?=+) 14...Qc7-/+ 15.Bd7 (15.Rb2 a6 16.Bd7 Nd7-/+) 15...Nd7-+ 16.0-0 Ba2 17.Ra1 Bd5 18.Qe2 (18.Ne5 Nb6-+) 18...cd4 (18...Qf4 19.Ne5 Qg5 20.Nd7 cd4 21.Bd4+/- (worse 21.Nf8 dc3 22.Nf3 Bf3 23.Qf3 Qc5 24.Kh1 Rf8-/+)) 19.Bd4 Qc2 20.Rfc1 Qf5 21.Rc7 Rfd8 22.Rca7 Qf4 23.g3 (23.Ra8 Ba8 24.Ra7 e5-+) 23...Qg4 24.Ra8 Ra8 25.Ra8 Ba8 26.Kf2 Bf3 (26...Qf5 27.Qc4 Nc5 28.Kg2-+) 27.Nf3 f6 28.Kg2 Kf7 29.h3 Qf5 30.g4 Qd5 31.Bf2 h5 (31...Ne5 32.Bg3 Nd3 33.g5-+) 32.Kf1 (32.gh5 Qh5 33.Bg3 Qd5-+) 32...hg4 33.hg4 g5 34.Nd4?! (34.Be3 Bc5 35.Bc5 Nc5-+) 34...Qh1 35.Bg1 Qh3 36.Ke1 Ne5 37.Qh2 (37.Qe4-+) 37…Bb4 (37...Bb4 38.Ke2 Qd3 39.Kf2 Ng4 40.Kg2 Nh2 41.Bh2 Qd4-+) 0-1. Haroldlee123 (1745) - Ollemsolrac (2315), ChessWorld.net, 2015. (=1.e4 c5 2.b4 b6 3.Bb2)

4.d3 e6 5.bc5 bc5 6.f4 Nc6 7.Nf3 d5 8.Nbd2 Nf6 9.g3 (9.Be2 Ng4+=) 9...Be7 (9...Rb8 10.Rb1+=) 10.Bg2 Rb8 11.Bf6 Bf6 Black has the pair of bishops 12.e5 White threatens to win material: e5xf6 12...Be7 13.0-0 0-0 14.g4 (14.Rb1 Qd7+=) 14...Qc7 (14...c4 15.dc4 Ba6 16.Rb1-/+) 15.a3 Secures b4 (15.c3 Ba6 16.Qe2 Rfe8-/+) 15...f5 Black threatens to win material: f5xg4 (15...c4 16.dc4 Bc5 17.Kh1+=) 16.Ne1? (16.gf5!? Ba6 17.Ne1=) 16...g5 (16...Qa5!?-/+) 17.gf5 gf4 (better is 17...Rf5 18.Bh3 Rf4 19.Be6 Kh8 20.Bd5 Qe5-/+) 18.Qg4 Kh8 19.f6 White has a mate threat 19...Bd8 (19...Bf6 20.ef6 Rf6 21.Nef3+=) 20.Nef3 (20.Rf4 Weaker is 20...Ne5 21.Qg5 Rg8-+) 20...Bc8 (20...Qf7 21.Qf4 Qh5 22.Rab1+/-) 21.Qh5 Qf7 22.Qh6+= Rb2?? 23.Ng5+- Qg8 24.Nh7! Qh7 25.Qf8 Qg8 1–0. Strejczek,Dariusz – Goszczynski,Andrzej, Poland–chT2 North U20, 2000. (=1.e4 c5 2.b4 b6 3.Bb2 Bb7)

4.d3 e6 5.bc5 Nc6 6.Nd2=.

4.e5 e6 5.bc5= bc5 6.Na3+= Ne7 7.Nf3 Nf5 8.Bd3 Be7 9.0-0 0-0 10.Re1 Nh6 11.Rb1+= Nc6 12.Be4 Rb8 13.d3 f5= 14.Bc6 Bc6 15.Nc4 Qc7 16.Nfd2 Ba8 17.Bc3 Rb1 18.Qb1 Rb8 19.Qa1 Nf7 20.Rb1 Bd5 21.Rb2 g5 22.Qb1 Rb2 23.Qb2 Qb7 24.Qb7 Bb7 25.f3 Nd8 26.Bb2 ½–½. Andersen,A (2200) – Weller,M (2020), Kaupthing Open (7), 2008.

4.e5 e6 5.Nf3 Ne7 6.c4 Ng6 7.Be2 Be7 8.0-0 0-0 9.Ne1 Nc6 10.b5= Nd4 11.f4 d6 12.Nd3 de5-+ 13.fe5 Qc7 14.Nc3 Rad8 15.Qb1 Ne2 16.Ne2 Be4 (16...Be4 17.Nec1 Qd7-+) 0–1. Mariette,Christian (1980) – Renet,Olivier (2250), FRA–ch, 1984.

4.f3 e6 5.bc5 bc5 6.Nc3 Nf6 7.e5 Nd5 8.Nd5 Bd5 9.Ne2 Be7 10.Nf4 Bb7 11.g3 0-0 12.Bg2 Ba6 13.d3 Nc6 14.0-0 Qc7 15.Nh5 Rab8 (worse is 15...Ne5 16.f4 Nc6 17.Bg7+- (17.Ng7?! f5=)) 16.Bc3 ½–½. Staib,Christian – Dahmen,Juergen, Stuttgart–chB, 2004. (=1.e4 c5 2.b4 b6 3.Bb2 Bb7)

3.Bb2 Nc6

4.a3 Bb7 5.Nf3 (5.bc5 e5=) 5...h6 (5...cb4 6.e5=+) 6.Bc4 (6.bc5 bc5 7.Nc3 Rb8+=) 6...d6 (6...e6 7.0-0=) 7.b5 (7.Nc3 e6 8.h3 Be7+=) 7...Nb8 (7...Na5 8.Bd5+=) 8.d3 (8.Qe2 e6+-) 8...e6+= 9.Nc3 (9.0-0 Nf6+=) 9...Nf6 10.0-0 Be7 (10...Nbd7 11.d4+=) 11.Ne2 (11.e5 de5 12.Ne5 Qd6+=) 11...0-0= 12.h3 a6 13.a4 d5 14.ed5 ed5 15.Ba2 (15.Bb3 d4+=) 15...Bd6 16.Ng3 Qd7?? (better 16...Bg3 17.fg3 Nbd7=) 17.Bf6+- gf6 18.Qd2 (18.Nh4 Kh7 (18...ab5 19.Nhf5 Bf4 20.Qg4 Bg5 21.Nh6 Kh7 22.Qh5 Bh6 23.Nf5 Qf5 24.Qf5 Kg7 25.Qg4 Kh8 26.ab5+-) 19.Ngf5 Rg8+-) 18...Kh7 (18...ab5?? 19.Nh5 Kh7 20.Nf6 Kg7 21.Nd7 Nd7 22.ab5+-) 19.d4 c4 (19...Bg3!? 20.fg3 Qd6+-) 20.c3 Rg8? (20...Bg3 21.fg3 Qd6 22.Bb1 Kg7+-) 21.Bb1 Rg6 22.Bf5 Qe8 (22...Qd8+-) 23.Nh5 Nd7 24.Rfe1 Qg8 (24...Qd8 25.Qc2 Nf8 26.Bg6 fg6 27.Re8 Qe8 28.Nf6 Kg7 29.Ne8 Re8 30.a5 ab5 31.a6+-) 25.Nh4 (better 25.ba6!? Bc6 26.Nh4 Ra6 27.Ng6 fg6 28.Bd7 Qf7 29.Bc6 gh5+-) 25...Qh8 (25...Qd8 26.ba6 Ba6 27.Bg6 fg6+-) 26.Bd7 (26.Bd7 Rg5 27.Qd1+-) 1–0. Girdziusas,Kestutis – Vilius,Vaidas, LTU Championship, 2017. (=1.e4 c5 2.b4 b6 3.Bb2 Nc6)

4.Bc4 (4.b5 Na5+=) 4...d6 (better 4...cb4!? 5.Qf3 e6=+) 5.Bd5 (5.Bf7 Kf7 6.Qh5 g6 7.Qd5 Be6 8.Qc6 Bg7 9.Bg7 Kg7 10.bc5 bc5+-) 5...Bb7 6.b5 Na5 7.Qh5 (7.Bb7 Nb7 8.Nf3 e6+=) 7...Bd5+= 8.Qd5 (8.ed5 Nc4 9.Bc3 Nf6 10.Bf6 ef6+=) 8...e5 (8...e6 9.Qd3=) 9.Nf3 Nf6 10.Qd3 g6 (10...a6 11.ba6 c4 12.Qe2+=) 11.Nc3 Bg7 12.h4 (12.0-0 0-0+=) 12...Qd7 (12...a6 13.ba6 c4 14.Qe2=) 13.a4 h6 14.Nd5 Nd5 15.Qd5 (worse 15.ed5 0-0 16.Qf1 Rfe8-/+) 15...0-0 (15...Qb7 A) 16.Qd6? Rd8 (16...Qe4?! 17.Kf1=+) 17.Qd8 Kd8-+; B) 16.Qb7 Nb7 17.h5+=) 16.Ne5 Be5 (16...de5 17.Qd7; 16...Be5 17.Be5) 17.Be5 Rfd8 (17...Rae8!? 18.Bc3 Re4 19.Qe4 Re8 20.Qe8 Qe8 21.Kd1 Qd7+-) 18.Bg3 (18.Bc3 a6 19.h5 g5+-) 18...Qe6 (18...a6 19.ba6 Ra6+-) 19.Qd3 (19.Qe6 fe6 20.h5 g5+-) 19...c4 (19...Re8 20.h5+= (20.Bd6? Rad8-+)) 20.Qf3 (20.Qe3 d5+-) 20...f5+= 21.d3 cd3 22.cd3 Nb3 23.Ra3 (better 23.Rd1+=) 23...Rac8 24.Rb3 Rc1 25.Kd2 Rh1 26.Rb2 (better 26.Ra3-/+) 26...Qc8 (better 26...Ra1!?-/+) 27.Rc2= Qe6 28.Qf4 (28.Rb2 Re8 29.Rc2-+) 28...Rc8-/+ 29.Rb2 Rcc1 30.Qd6 Rhd1 (better 30...Qd6!? 31.Bd6 fe4-/+) 31.Ke3= Re1 32.Re2 Re2 33.Ke2 Qd6 34.Bd6 Rc2 (34...Ra1 35.e5=) 35.Ke3 fe4 36.de4 (36.Bb8 ed3 37.Ba7=) 36...Kf7 (better 36...Ra2!?=) 37.Bb8+= Ra2 38.Ba7 Ra4 39.Bb6 Rb4 40.Bc7 (better 40.Kd3 Rb5 41.Be3+-) 40...h5?? (better 40...Rb5 41.g4 Rb3 42.Kd4 Rb4 43.Kd5 Rb5 44.Kc6 Rb2+=) 41.b6+- Ke6 42.e5 (42.Kf4 Kf6+-) 42...Kd7 (42...Kd5 43.Kd3+-) 43.f4 (43.f3 Ke6+-) 43...Ke6 44.g3 Kd5 45.Kf3 (45.Kd3 Rd4 46.Kc3 Rc4 47.Kd2 Rd4 48.Ke2 Rb4+-) 45...Rb3 46.Kg2 (46.Ke2 Ke6+-) 46...Rb2 (better 46...Rb1+-) 47.Kf3 Rb3 48.Kf2 (48.Ke2 Ke6+-) 48...Ke6 (48...Rb2 49.Kf1+-) 49.Ke2 Kd7 50.Kd2 Ke6 51.Kc2 Rb5 52.Kc3 (52.Kd3 Rb1+-) 52...Rb1 (52...Kd5 53.Bd8+-) 53.Kc4 Rb2 (better 53...Kd7+-) 54.Kc5 Rb3 (54...Kd7 55.e6! Ke6 56.Be5+-) 55.Kc6 Rc3 56.Kb7 Kd7 57.e6! Ke6 58.Kc8 Rb3 1–0. Chiu,Amparan Aquiles (2200) – Solomon,Stephen J (2200), Malta ol (Men), 1980. (=1.e4 c5 2.b4 b6 3.Bb2 Nc6)

3.Bb2 d6

4.a3 e5 5.Nf3 Bg4 6.Be2 g6 7.h3 Be6 8.d3 Bg7 9.c4 Ne7 10.Qc1 0-0 11.Bc3 f5 12.Ng5 Qd7 13.Bd2 f4 14.Ne6 Qe6 15.Nc3 Nbc6 16.Nb5 Qd7 17.Bg4 Qd8 18.Rb1 a6 19.Nc3 Nd4 20.0-0 Nec6 21.Nd5 f3 22.Bg5 Ne2 23.Kh1 fg2 24.Kg2 Nc1 25.Bd8 Rad8 26.Rfc1 Rb8 27.bc5 bc5 28.Rb8 Rb8 29.Bd7 Nd4 30.Bg4 Rb3 31.Rc3 Rb2 32.Bc8 Ne2 33.Ba6 Nc3 34.Nc3 Kf7 35.Nb5 Ke7 36.Nc3 Ke8 37.Nd5 Kd7 38.Bb5 Kc8 39.a4 Kb7 40.a5 Ra2 41.a6 Ka7 42.Ne7 Bf6 43.Nc8 Kb8 44.Nd6 Bd8 45.Ne8 Rd2 46.Ng7 Rd3 47.Ne6= Be7 48.Ng7 Rd4 49.f3 h6 50.Kg3 h5 51.h4 Rd1 52.Ne6 Rh1 53.Ng5 Bg5-/+ 54.hg5 Rg1 55.Kh4 Rg2 56.Ba4 Ka7 57.Bb5 Rg1 58.Be8= Ka6 59.Bg6 Kb6 60.Bh5+/- Kc6 61.Bf7 Kd7 62.Kh5 Ke7 63.Bd5 Kf8 64.Kh6 Rg3= 65.g6 Rg1 66.Kh5 Kg7 67.Bf7 Rf1 68.Kg4 Rg1?? 69.Kf5+- Rf1 70.Kg4 Rg1= 71.Kf5 Rf1 72.Kg4 (worse is 72.Ke5 Rf3 73.Kd6 Rd3 74.Kc5 Kf6+-) ½–½. Chupina,Alexandra – Karibaeva,Elvira, RUS–ch U10 Girls, 1999. (=1.e4 c5 2.b4 b6)

4.Bb5 Bd7 5.Bd7 Nd7 6.f4 (6.b5 Ngf6 7.Nc3 e6+=) 6...e6 7.Nf3 Ngf6 8.d3 cb4 9.Qd2 Qc7 10.a3 Be7 11.ab4 0-0 12.c4 d5 13.e5 Ne8 14.cd5 ed5 15.Nd4 g6 16.0-0 Ng7 17.f5 Ne5 18.f6 Bb4? (18...Ng4 19.Qf4 Qf4 20.Rf4 Nf6+=) 19.Qb4+- Nd3 20.Qc3 (better is 20.Qd2 Nb2 21.fg7+- (21.Qb2?! Ne6+=)) 20...Qc3+= 21.Bc3 (worse is 21.Nc3 Nb2 22.fg7 Kg7 23.Nd5 Rad8 24.Ra7 Kh6 25.Nb6 Rd4=) 21...Ne6 22.Nc6 a5 23.Ne7 Kh8 24.Bd2 (24.Nd5 Rfb8+/-) 24...h5 (24...d4 25.Na3 a4 26.Bh6+=) 25.g4 hg4 26.h3 Ne5? (26...Rfd8 27.Ra3 g3 28.Rd3 d4+-) 27.hg4+- Ng4 28.Kg2 Nf6 29.Rf6 Kg7 30.Rf1?? d4= 31.Na3 Ra7 32.Nd5+/- Rb7 33.Nb5 Rd8= 34.Nf4 Nc5? 35.Nd4!+- Ne4? 36.Be3 Rbd7? 37.Nde6! fe6 38.Ne6 Kg8 39.Nd8 Rd8 40.Bb6 Rd2 41.Kf3 Nd6 42.Ba5 Rd3 43.Kg4 Nf5 44.Bb6 Rg3 45.Kf4 Rb3 46.Ra8 Kf7 47.Bc5 Rb5 48.Rc1 Rb3 49.Ra7 Kf6 50.Ra6 Kf7 51.Ba3 Rb7 52.Rcc6 Ne7 53.Rf6 Kg7 54.Be7 Re7 55.Rg6 Kh7 56.Raf6 Re1 57.Rg3 Rf1 58.Kg5 Rh1 59.Rf4 Kg7+- 60.Kg4 Kg6 61.Kf3 Kh7 62.Kg2 Rh5 63.Rh3 Rh3 64.Kh3 Kg6 65.Kg4 Kh6 66.Kf5 Kh5 67.Re4 Kh6 68.Rh4 Kg7 69.Rh5 Kf7 70.Rh7 Kg8 71.Rd7 1–0. Branson,James – Levier,Jean Francois (1700), Elancourt op, 2005. (=1.e4 c5 2.b4 b6)

4.Bc4 cb4?? 5.Bd5 +-.

4.Bc4 e6 5.Nf3 Ba6 (5...cb4!? 6.0-0 Nf6+=) 6.b5 Bb7 7.Qe2 Nf6 8.e5 de5 9.Ne5 Bd5 (worse is 9...Bg2 10.Nf7 Qe7 11.Rg1 (worse is 11.Qe6 Qe6 12.Be6 Bh1 13.Nh8 Bd6+=) 11...Kf7 12.Rg2+-) 10.Nc3 Bc4 11.Nc4 Nbd7 12.0-0 Be7 13.a4 0-0 14.Rfe1 Qc7 15.Ra3 Qb7 16.f4 Rfe8 17.Raa1 Rad8 18.a5 Nd5 19.Qf3 Qa8 20.Ne4 N5f6? (better is 20...Qb8 21.f5 Qf4 22.Qf4 Nf4 23.fe6 Ne6+/-) 21.ab6+- Ne4 22.Ra7 (22.Qe4?! Nb6 23.Nb6 Qe4 24.Re4 ab6+/-) 22...Nd2? (better is 22...Qb8 23.Qe4 Nb6+-) 23.Qg3+- (23.Nd2?! Qf3 24.Nf3 Nb6+/-) 23...Nf6 24.Bf6 Bf6 25.Ra8 Ra8 26.Nd2 Red8 27.Nc4 Bd4 28.Kf1 Ra4 29.Ne5 Ra2 30.Nc6 Rd7 31.Qb3 Rb2 32.Qa4 g6 33.Nd4 Rd4 34.Qa8 Kg7 35.b7 (35.b7 Rf4 36.Kg1 Rb5 37.b8Q Rb8 38.Qb8+-) 1–0. Kalkhoff,Thomas (1870) – Kaltenpoth,Werner, Essen Werden op, 2004. (=1.e4 c5 2.b4 b6 3.Bb2 d6)

3.Bb2 Nf6

4.e5+= Nd5 5.Bc4 Nc7 6.Qf3 e6 7.b5 a5 (7...a6 8.Na3+=) 8.Nc3 Ra7 9.Ne4 Bb7 10.d3 Nd5 11.Qg3 Nb4 12.0-0-0 d5 13.ed6 Nd7 14.a3 (14.Bg7 Rg8 15.Bf6 Rg3 16.Bd8 Rg2+=) 14...Nd5 15.Bd5 (15.Bg7 Rg8 16.Bf8 Rg3+=) 15...Bd5 16.c4 (16.Bg7?! Rg8 17.Bf8 Rg3=) 16...Ba8 17.Nh3 (17.Bg7?! Rg8 18.Bf8 Rg3=) 17...Nf6 18.Rhe1 Rd7 19.Be5 Ne4 (19...h5 20.Nf4 Be4 21.de4+/-) 20.de4+- (worse is 20.Re4 Be4 21.de4 f6+=) 20...f6 (20...Bb7 21.Nf4+- (21.Bg7 Rg8 22.Bf6 Qf6 23.Qg8 Qc3 24.Kb1 Qb3 25.Kc1 Qa3 26.Kd2 Rd6 27.Ke2 Qa2 28.Kf1 Qc4 29.Kg1 Qe4+=)) 21.Bf4 (21.Qg4!? Kf7 22.Nf4 Qe8 23.Qh5 g6 24.Ng6 hg6 25.Qh8 Bg7 26.Qe8 Ke8+-) 21...g5 22.Qg4 Kf7 23.Bg5! h5 24.Qf4 Kg6+= 25.g4 fg5+= 26.gh5 Kh6?? 27.Qe5+- Bg7 28.Qe6 Qf6 29.Qf6 Bf6 30.e5 Be5? 31.Re5 Rhd8 32.Ng5 1–0. Kivipelto,Kaj – Krook,Pasi, FIN–chT I Division Group B, 1997. (=1.e4 c5 2.b4 b6 3.Bb2 Nf6)

4.e5 Nd5 5.bc5 bc5 6.Bc4 e6 7.Qf3 Bb7 8.Nc3 Qb6 9.Bd5 (9.Nd5?? Qb2 10.Rd1 Bd5 11.Bd5 Qe5 (11...ed5?! 12.Qd5 Nc6 13.c3-+) 12.Be4 f5-+) 9...ed5 10.Rb1 d4 11.Ne4 Qc6 12.d3 Be7 (12...Qb6 13.Ne2=) 13.Ne2 0-0 14.0-0 Na6 15.Qg4 (15.Bd4!? Rab8 16.Bc3+/-) 15...f5 16.ef6 Bf6 17.N2g3 Be5 18.Bc1 Nb4 (better is 18...Rab8!?=) 19.f4 Bf6? (better is 19...Bc7!? 20.Nf5 Rf7+/-) 20.Nh5+- (20.Nf6?! A) worse is 20...Qf6 21.a3 (21.Qd7?! Bc6 22.Qg4 Nc2=) 21...Qc6 22.Nh5+/-; B) 20...Rf6 21.Ne4 Rg6=) 20...Kh8 21.Rf2 Rf7 (21...Na2? 22.Nef6 Rf7 23.Ne4 Nc1 24.Rc1+-) 22.a3 Nd5 (22...Na2 23.Nhf6 gf6+=) 23.Bd2?? (23.Rb7!? Ne3 24.Qf3 Qb7+-) 23...Rg8 (23...Be7 24.Re2=) 24.Rbf1 (better is 24.Rb7!? Ne3 25.Qf3 Qb7 26.Nd6 Qb1 27.Rf1+/-) 24...Bc8 25.Qf3 Ne3 26.Be3 de3 27.Re2 Bd4 28.c3 Bf6 29.Kh1 d5 30.Nef6 gf6 31.Qe3 Bg4+= 32.Ng3 Be2 33.Qe2 Rfg7 34.Qh5 Rg3 35.hg3= Rg3 36.Qh3?? Rh3-+ 37.Kg1 Rg3 38.Rf2 d4 39.Kf1 dc3 40.Ke2 Qd5 0–1. Vasta,Eduardo (2350) – Skiadopoulos,Nikolaos (2170), Dos Hermanas Internet qual–E, 2009. (=1.e4 c5 2.b4 b6)

3.b5 a6

4.ba6 Ba6 5.Ba6 Ra6 6.Nf3 e6 7.0-0 h6 8.Bb2 Nc6 9.c3 (9.Qe2 Ra8+=) 9...Bd6 (9...d5!? 10.ed5 Qd5=) 10.c4 e5 11.Nc3 Nf6 12.Re1 0-0 13.d3 Na7 (13...Qe7 14.Nd5 Qe6 15.Qb3+=) 14.a4 Nc6 15.Re2 Nd4 16.Nd4 ed4 17.Nb5 Bb8 18.e5 (18.Re1 Re8+=) 18...Nh7 (18...Ng4!?=+) 19.f4 f5 (19...d6=) 20.ef6 (better 20.Bc1!?+=) 20...Qf6=+ (worse 20...Bf4 21.fg7 Kg7 22.Bc1+=) 21.Rf2 (21.g3!?=+) 21...Bf4-/+ 22.Nc7?? (better 22.Kh1-/+) 22...Be3 (22...Bh2 23.Kh2 Qh4 24.Kg1 Qf2 25.Kh1-+) 23.Nd5 (23.Kh1 Qf2 24.Na6 Qb2 25.Rb1-+) 23...Qf2 24.Kh1 Qb2 25.Nc7 (25.Ne7 Kf7 26.Nd5 Nf6 27.Nf6 Kf6-+) 25…Rf2 (25...Rf2 26.Rb1 Qa2-+) 0-1. delightful_porridge - 19larry, ChessWorld.net, 2022. (=1.e4 c5 2.b4 b6 3.b5 a6)

4.ba6 Na6 5.Ba6 (5.Nc3 Bb7=) 5...Ba6 6.d3 e5 7.c4 d6 8.Nc3 Nf6 9.Bg5 Be7 10.Bf6 Bf6 11.Qa4 Ke7 (better 11...Qd7!? 12.Qb3 0-0=) 12.Nd5+/- Ke6 13.Qd1 Re8?? (better 13...Kd7 14.Qb3 Ke8+/-) 14.Qg4 1-0. Ardeshirpour1 (1955) - Checky (1700), Rated Blitz game, lichess.org, 2013. (=1.e4 c5 2.b4 b6 3.b5 a6)

4.Bb2 d6 5.a4 Nf6 6.d3 (6.ba6 Ne4 7.Bb5 Bd7+=) 6...g6 7.c4 a5 8.Nf3 Bg7 9.Be2 Nbd7 10.Na3 e6 11.Nc2 0-0 12.Ne3 Bb7 13.Nd2 Ng4 14.Bg4 (14.Bg7!? Ne3 15.fe3 Kg7 16.Bf3=) 14...Bb2+= 15.Rb1 Bg7 16.0-0 Ne5 17.Be2 d5 18.f4 (18.cd5 ed5 19.ed5 f5=) 18...d4 (better is 18...de4!? 19.de4 Qd4-/+) 19.Ng4 Ng4 20.Bg4 f5 21.ef5 ef5 22.Bf3 Qc7 23.Bb7 Qb7 24.Qf3 Qd7 (24...Qf3!? 25.Nf3 Rae8+=) 25.Rbe1 Rae8 26.Kf2 (26.Qd5 Qd5 27.cd5 Re3=) 26...Re3 27.Qd5 (27.Re3 de3 Passed pawn) 27...Qf7 28.Qf7 Kf7 29.Re3 de3 30.Ke3 Re8 31.Ne4 fe4 32.de4 Rd8 33.e5 (better is 33.Rc1!?-/+) 33...Ke6 34.g4 Rd4 35.h4 (35.Kf3 Bh6 (35...Rc4?! 36.Rd1-+) 36.Kg3 Rc4-+) 35...h6 (35...Bh6 36.Rf2-+) 36.Rf2? (better is 36.Kf3-+) 36...g5 37.Rd2 (37.hg5 hg5 38.fg5 Be5-+) 37...gf4 38.Ke2 Rd2 39.Kd2 Ke5 40.Ke2 Bf6 41.Kf3 Bh4 (41...Bh4 42.g5 hg5 43.Ke2 g4 44.Kd3 g3 45.Kc2 g2 46.Kb2 g1Q 47.Kc2 f3 48.Kb2 Qg2 49.Kc3 f2 50.Kb3 f1Q 51.Kc3 Qff3) 0–1. Wenske,Hardy – Ernst,Herwarth (1765), Hamburg Robinow op, 2005. (=1.e4 c5 2.b4 b6 3.b5 a6)

4.c4 ab5 5.cb5 g6 6.Bb2+= f6 7.Nc3 e6 8.h4 (8.Bd3 Bg7+=) 8...Bg7 (8...d5 9.ed5 ed5 10.Qf3=) 9.h5 Nh6 10.hg6 hg6 11.Nge2 Nf7 (11...f5 12.Nf4 Qg5 13.ef5 gf5 14.Qf3=) 12.Rh8+= Nh8 13.d4 Bb7 14.dc5 bc5 15.a4 Qa5 16.Qd2 Nf7 17.Nf4 (17.f4 g5+=) 17...g5?? (better 17...Bh6!?-/+) 18.Nd3 (18.Nh5!? Bh8 19.Ne2+/-) 18...d6 19.g3 Nd7 20.Bg2 Nde5 (20...Nb6!? 21.Nd1 Qd2 22.Kd2 Na4-/+) 21.Ne5+= Ne5 (21...de5!? 22.Bh3 Rd8=) 22.Qd6+/- Kf7 23.Kf1 (23.Rd1!?+/-) 23...Rd8+= 24.Qc5 Nd3 25.Qa3 f5 26.Rd1 (26.Nd5 A) 26...Bb2 27.Qe7 Kg6 28.Qe6 Kg7 29.Qe7 Kh6 30.Rd1 Bd5 A1) 31.Rd3 Bc4 32.e5 Bd3 (32...Rd3?! 33.Qf8 Kg6 34.Qf6 Kh7 35.Qf5 Kg7 36.Qg5 Kf8 37.Qf4 Bf7 38.Qh6 Ke8 39.Bc6 Ke7 40.Qf6 Kf8 41.Qh8 Ke7 42.Qf6 Kf8 43.Qh8 Ke7 44.Qf6=) 33.Kg1 Bd4 34.Qf6 Kh5 35.Bf3 g4 36.Qf7 Kh6 37.Qf6 Kh7 38.Qf7 Kh8 39.Qf6 Kg8 40.Qg6 Kf8 41.Qf6 Kg8 42.Qg6 Kh8 43.Qf6 Kg8=; A2) 31.ed5 Qa4 32.Rd3 Qb5 33.Qe6 (33.Qd8?! Qd3 34.Kg1 Bd4+/-) 33...Kg7 34.Qf5+-; B) worse 26...ed5 27.Bg7 de4 28.Bc3+=; C) 26...Bd5 27.Bg7 Bc4 28.ef5 ef5-/+) 26...fe4?? (better 26...Nb2 27.Rd8 Qd8 28.Qb2 Qd3 29.Qe2 Qc3=+) 27.Ba1+/- Rc8? (better 27...Qa7 28.Qa2 Bc3 29.Bc3 Qc5+/-) 28.Ne4 Ba1 (28...Be4 29.Be4 Nc5 30.Qf3 Kg8 31.Bg7 Kg7 32.Qh5+-) 29.Qa1 (better 29.Ng5 Kg6 30.Qd3 Kg5 31.Bb7 Rh8 32.Ra1 Rd8 33.Qe3 Kg6 34.Qe6 Kg7+-) 29...Qb4 (29...Be4 30.Be4 Nc5+-) 30.Qf6 Ke8 31.Ng5 (31.Rd3?? Rc1 32.Rd1 Rd1 33.Ke2 Qe1 34.Kf3 Qe4) 31...Qe7 (31...Bg2 32.Kg2 Qe7 33.Qg6 Kd7 34.Ne6+-) 32.Qe7 (better 32.Qg6 Kd7 33.Bb7 Rc3 34.Ne6 Qa3 35.Bc6 Ke7+-) 32...Ke7 33.Bb7 Rc1 (33...Rd8 34.a5 Nc5 35.Rd8 Kd8 36.Bg2+-) 34.Rc1 Nc1 35.a5 Nb3 36.a6 Nd2 37.Ke2 Nb3 38.a7 Nd4 39.Kd3 Nb5 40.a8Q Nd6 41.Qf8! Kd7 (41...Kf8 42.Ne6 Combination) 42.Be4 (42.Qg7 Nf7 43.Qf7 Kd6 44.Ne4 Ke5 45.f4) 42...Nb5 (42...Ne4 43.Ke4 Kc7 44.Ne6 Kd7 45.Nc5 Kc6 46.Kd4 Kc7 47.Qe7 Kb6 48.Qd6 Kb5 49.Qa6 Kb4 50.Qa4) 43.Qe7! Kc8 (43...Ke7 44.Nf3 Combination) 44.Ne6 Nd6 (44...Nd4 45.Qd8) 45.Qd6 (45.Qd8) ½-½. feofan64 (2050) - kasperoff (1660), Hourly SuperBlitz Arena, lichess.org, 2018. (=1.e4 c5 2.b4 b6 3.b5 a6)

4.d3 ab5=+ 5.d4 cd4 6.Bb5 e5 7.Nf3 Bb4 8.Bd2 Bd2 9.Qd2 Nf6 (9...Qe7 10.0-0 Ra5 11.Bd3=+) 10.Qe2 (better 10.Ne5!? Bb7 11.f3+=) 10...Nc6 (10...Qc7 11.0-0-/+) 11.Bc6 dc6 12.Ne5 Qd6 13.Nc4 Qb4 14.Nbd2 0-0 15.0-0 b5 16.Ne5 Qc5 17.Nd3 Qc2 18.Rfc1 Qa4 19.Nc5 Qa3 20.f3 (20.Ncb3 Rd8=+) 20...Re8 (20...Rd8 21.Ndb3=+) 21.Ncb3? (21.Ndb3 Rd8=+) 21...Nd5 (21...Qd6 22.Qd3 Rd8 23.Nc5-/+) 22.Qd3? (better 22.Qf2 Nb4 23.Qd4=+) 22...Nf4-+ 23.Qf1 Qd6 24.g3 Qg6?? (better 24...Bh3 25.Qd1 Nd3-+) 25.Nd4=+ b4 (better 25...Nh3!? 26.Kh1 Bd7=+) 26.Rc6+= Qg5 27.Rb6?? (27.N2b3 Ne6+=) 27...Ba6 (better 27...Nh3 28.Kh1 Qd2-+) 28.Qf2?? (better 28.Ra6 Ra6 29.Qa6 Nh3 30.Kg2 Qd2 31.Ne2+=) 28...Nh3-+ 29.Kh1 (29.Kg2 Nf2 30.N2b3-+) 29...Nf2 30.Kg2 Qd2 31.Nf5 Ne4 32.Kh3 Ng5 33.Kh4 Nf3 34.Kg4 (34.Kh3 Qh2 35.Kg4 Re4 36.Kf3 Qe2) 34...Nh2 (34...Re4 35.Kf3 Qe2) 35.Kh3 Bc8 36.Rd6 (36.Rf6 gf6 37.a4 Bf5 38.g4 Bg4 39.Kg3 Re3 40.Kf4 Qd4) 36…Bf5 (36...Bf5 37.g4 Ra3 38.Kh4 Nf3 39.Kh5 Qh2) 0-1. LopezArgen – dimehola, Rated Classical game, lichess.org, 2013. (=1.e4 c5 2.b4 b6 3.b5 a6)

3.b5 Bb7

4.Nc3 d6 5.Bc4 Nf6 6.d3 (6.Nf3 Ne4 7.Ne4 d5 8.Nc5 bc5+=) 6...g6= 7.Nf3 Bg7 8.Rb1 (8.Bd2 a6=) 8...0-0 9.Ne2 (9.0-0!?=) 9...d5 10.ed5 Bd5 (10...a6 11.0-0+=) 11.Bd5 Qd5 12.c4 Qd6 (12...Qb7 13.0-0+=) 13.Bf4 Qd8 14.0-0 a6 (14...Nbd7 15.d4=) 15.a4 (15.d4!? ab5 16.Rb5=) 15...ab5 16.cb5 (16.ab5 Nbd7=) 16...Nd5+= 17.Bg3 Qd7 18.Qb3 Rc8 (18...Qf5 19.Nd2+=) 19.Rfd1 (19.Rbc1 Qf5=) 19...e6 (19...Qf5-/+) 20.h3 (better is 20.Be5!?+=) 20...Qa7-/+ 21.Be5 Qa4 22.Bg7 (22.Qb2 Be5 23.Ne5 Qa2-+) 22...Qb3-+ (22...Kg7?? 23.Qb2 Kg8 24.Ra1+-) 23.Rb3 Kg7 24.Ne5 f6 (24...Rd8 25.Nc3-+) 25.Nc4-/+ e5 26.Nc3 Nc3 27.Rc3 Nd7 28.f3 Ra2 29.Ra3 Ra3 30.Na3 Ra8 31.Nc4 Kf7 32.Kf2 Ke6 33.g4 Ra4 34.Rb1 Rb4 35.Na3 (35.Rb2 f5-+) 35...Kd5 36.Ke3 (36.h4 h5 37.gh5 gh5-+) 36...Nf8 37.Rc1 (37.Ra1 Ra4 38.Nc2 Ra1 39.Na1 c4-+) 37...Ne6 38.Rc4 (38.Nb1 Nf4 39.Nc3 Ke6-+) 38...Rb3 (38...Nd4 39.Rb4 cb4 40.Nc4-+) 39.Ra4 Nf4 40.Ra7 Rd3 41.Kf2-+ Nh3 42.Kg3 Nf4 43.Rd7 Ke6 44.Rd3 Nd3 45.Nc4 Nb4 46.Nb6 Nd5 47.Nc4 Nc7 48.b6 Na6 49.Kf2 Kd5 50.Na5? c4 51.Ke3 h5 52.gh5 gh5 53.f4 ef4 54.Kf4 c3 55.Ke3 Kc5 56.b7 Kb6 57.Nc4 Kb7 58.Kd3 c2! 59.Kc2 Nc5 60.Nd6? Kc6 61.Nf5 Kd5 62.Kd2 Ke5 63.Nh4 Kf4 64.Ke2 Kg4 65.Nf3 Kg3 66.Ng1 h4 67.Ke3 h3 68.Ne2 Kg4 69.Kf2 Ne4 70.Kg1 f5 71.Kh2 Ng5 72.Kh1 f4 73.Nd4 Kg3 74.Ne2 Kf2 75.Nf4= ½–½. Markiewicz,Janusz – Gajewski,Wojciech, 100th YMCA Winter D Poland, 2012. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 e6 5.Bb2 d6 6.a4 Nf6 7.d3 Nbd7 8.f4 d5 9.e5 d4 10.ef6 dc3 11.Bc3 Nf6 (worse is 11...gf6 12.a5=) 12.Nf3 Nd5 13.Bd2 Qf6 14.Be2 Nf4 15.0-0 Bd6 16.Be1? (better is 16.a5-/+) 16...Ne2-+ 17.Qe2 Qa1 18.Bg3 Bf3 19.Qf3 (19.Ra1?? Be2 20.Bd6 Rd8-+) 19...Qd4 20.Bf2 Qd5 0–1. Bishop,Peter (1810) – Serban,Vlad (2165), LUX–ch AB Differdingen, 2007. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 e6 5.Qe2 a6 6.Bb2 ab5 7.Nb5 Nc6 8.Nf3 Ba6 9.c4 Bb5 10.cb5 Nb4 11.d3 Ra2 12.Ra2 Na2 13.Bg7 Bg7 14.Qa2 Bc3 15.Kd1 Ne7 16.Kc2 (16.Qa3 Bg7+=) 16...Bg7+= 17.Be2 0-0 18.Rd1 Qc7 (18...d5 19.Qa4-/+) 19.g3 d5 20.Nd2 Qe5 21.Qa3 Rc8 22.Nf3 Qc7 23.Nd2 Qd8 24.f4 Ra8 25.Qb3 Ra5 26.Re1? (26.Rc1 Qa8 27.Kd1 Ra2-/+) 26...Qd7 (better is 26...Qa8 27.d4 Ra3 (worse is 27...de4 28.Bc4 Ra3 29.Qb1-+) 28.ed5 Nf5-+ ) 27.Rb1-/+ Nc8 28.ed5 ed5 29.Bf3 Ne7 30.Nf1 Ra8 (30...c4 31.dc4 Nf5 32.Rd1-/+) 31.Ne3+= Rd8 32.g4 Qd6 33.Ng2 c4 34.Qb4 Qf6 35.f5 Rc8 36.Ne3?? cd3 37.Kd3? Rc3 38.Ke2 Qe5 39.Qc3 Qc3 40.Rd1 d4 41.Ng2 Qc4 42.Kf2 Qb5 43.Be4 Nd5 44.Rb1 Qc5 45.Bd3 Nb4 46.Be4 Qc3 47.g5 Be5 48.f6 Nd3 49.Kg1 b5 50.h4 Nb4 51.h5 d3 52.Rd1 0–1. Lukovski,Lev (2060) – Romaker,Johann (1950), Koeln–ch, 2006. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 e6 5.Qe2 Be7 6.e5 d5 7.Qg4 g6 8.d3 h5 9.Qf4 Nd7 10.Nf3 Qc7 11.h4 Nh6 12.Qg3 Nf5 13.Qf4 f6 14.ef6 Qf4 15.f7 Kf7 16.Bf4 Bf6 17.Bd2 Nd6 18.a4 d4 19.Ne2 e5 20.Ng5 Bg5 21.Bg5 a6 22.Rb1 ab5 23.ab5 Ra5 24.c4 e4 25.Nf4 (25.Nc1 Re8 26.Kd1 ed3 27.Nd3 Ne4-+) 25...ed3 26.Bd3 Re8 27.Kf1 Ne5 28.Rh3 Nd3 (28...Nec4?! 29.Bg6 Kg8 30.Nh5=) 29.Nd3 Nc4 30.Rc1 Nd6 31.Bf4 Nf5 32.Ne5 Kg7 33.Rb3 Bd5 34.Rb2 Nh4 35.Nd7 Bg2 36.Kg1 Re6 (better is 36...Be4 37.Nb6 Nf3 38.Kf1 Bf5-+) 37.Bg3 g5 38.Bh4 gh4 (better is 38...Bf3!? 39.Nc5 bc5 40.Bg5 Re5-/+) 39.Kg2+= Ra8 40.Nc5 bc5 41.Rc5 Rg6 42.Kh2 Kh6 (42...Rd6 43.Rh5 d3 44.Rd2= (44.Rh4? d2 45.Rb1 d1Q 46.Rd1 Rd1-+)) 43.Rd5 Ra3 (better is 43...Rg4!?=) 44.Rd4+/- h3 45.f4 Rb6 46.Rd5 Rf3 47.Rb4 Re6 48.Rd2 Rb6 49.Ra2 Kg6 ½–½. Vavruska,A (2135) – Pistek,J (1920), Stare Mesto CZE, Open, 2011. (=1.e4 B20: Sicilian: Unusual White 2nd moves 'A00: Irregular Openings ' 1...c5 2.b4 b6 3.b5 Bb7)

4.Nc3 e6 5.Nf3 d6 6.g3 (6.Bd3!?+=) 6...Nf6 7.Qe2 Nbd7 8.Bg2 Be7 9.Bb2 0-0 10.–0 Qc7 11.Nh4 a6 12.a4 ab5 13.ab5 c4 14.d4 cd3 15.cd3 Ra5 16.Rac1 Qb8 17.d4 Ba8 18.f4 Rc8 19.d5 ed5 20.Nf5 Bf8 21.Nd5 Bd5 22.ed5 Rc5 23.Nd4 Ra2 (23...Nd5 24.Nc6 Qb7 25.Rc5 Nc5 26.Bd5+-) 24.Nc6 Qe8 25.Qe8 Ne8 26.Bd4 Rc1 (26...Rb5 27.Ra1 Ra1 28.Ra1+= (worse is 28.Ba1 g6=)) 27.Rc1+/- Nc5 28.Re1 Ra8 29.Bc5 dc5 30.d6 Nd6 31.Ne7 Be7 32.Ba8 Bf6 33.g4 g6 34.Rb1 Bd4 35.Kg2 Nc4 36.h4 Kg7 37.Bc6 Ne3 38.Kf3 c4 39.Ke4 Bc5 40.Rc1 f5 41.gf5 ½–½. Van de Meerakker,Theo – Van Gool,H (2110), 12th HZ Open, Vlissingen NED, 2008. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 e6 5.Nf3 Nf6 6.Qe2 d5= 7.ed5 Nd5 8.Nd5 Qd5 9.Bb2 Qe4 10.d3 Qe2 11.Be2= f6 12.0-0 Bd6 13.a4 Kf7 14.a5 Nd7 15.a6 Bd5 16.d4 Rac8 17.dc5 Bf3 18.Bf3+= Rc5? 19.Ba3 Be5+/- 20.Bc5 Ba1 21.Bb6 Nb6 22.Ra1 Rc8 23.Bc6 Rd8 24.Kf1 Rd2 25.Rc1 Nc4 26.Ke1 Ke7?? 27.b6!+- Rd8 28.ba7 Nb6 29.Rb1 Na8 30.Rb8 (30.Rb8 Nc7 31.c4+-) 1–0. Bianchi,Albino (2225) – Fiszman,Felix, Mar del Plata op (7), 1999.

4.Nc3 Nf6 5.e5 Nd5 6.Qf3 Qc7 7.Bc4? (7.Qg3 Nc3 8.Qc3 a6=) 7...Qe5?? (better is 7...Nc3 8.Qf7 Kd8-+) 8.Nge2+= e6 9.Bb2 Nc3?? (better is 9...a6+=) 10.Qb7+/- (10.Qc3? Qc3 11.Nc3 Bg2-+) 10...Qe4 11.Qc8 Ke7 12.Bd3 Qg2 13.Rg1 Qh2 (13...Qh3 14.Bc3 Qf3 15.Be5+-) 14.Bc3 1–0. Frink,Ferenc (2250) – Grimm,Daniel (2050), XXIX Balaton Open A, 2011. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 g6 5.Bc4 Bg7 6.Qf3 e6 7.Nge2 Ne7 8.Rb1 0-0 9.d3 d5 10.ed5 Nd5 (10...ed5 11.Bb3+=) 11.Nd5 ed5 12.0-0 Nd7 13.Bb3 (worse is 13.Bd5 Ne5 14.Bb7 Nf3 15.Bf3 Rc8-+) 13...Ne5 14.Qg3 Re8 15.Nf4 c4 16.Ba4 Nd7 17.dc4 dc4 18.Be3 Nc5 19.Bc5 bc5 20.b6 Re4 21.ba7 Ra7 22.Rb7 Rb7 23.Bc6 Rbe7 24.Be4 Re4 25.Qf3 Rd4 26.Re1 Bh6 27.g3 Bf4 ½–½. Frink,Ferenc (2195) – Bogdan,Dan (2370), Baile Felix ROM, 2012. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.Nc3 g6 5.Nf3 Bg7 6.Bc4 e6 7.Qe2 Ne7 8.e5 d5 9.ed6 Qd6 10.Ne4 Be4 11.Qe4 Nd5 12.c3 Nd7 13.0-0 0-0 14.a4 N7f6 15.Qe5 Qe5 16.Ne5 Ne7 17.a5 Ne4 18.f4 Rfd8 19.ab6 ab6 20.Ra6 Nd6 21.Ra8 Ra8 22.Be2 Ra2 23.Re1 Nd5 24.g3 Nc7 (24...g5!? 25.c4 gf4 26.Nf7 Nf7 27.cd5 ed5-/+) 25.c4= Be5 26.fe5 Nf5 27.d3 Nd4 28.Bd1 Ra1 29.Bd2 Ra3 30.Re3 Ra1 ½–½. Schlag,Franz (2170) – Kuehn,Peter2 (1870), Bevensen op Seniors 2nd, 1999. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.d3 e6 5.c4 d5 6.ed5 ed5 7.Qb3 (7.Nf3 Qf6 8.Qe2 Ne7=+) 7...Nf6 8.Nf3 Bd6 9.Be2 Nbd7 10.0-0 0-0 11.Bb2 Re8 12.Re1 dc4 (12...d4!? 13.Nbd2 Qc7=+) 13.dc4= Qc7 14.Nbd2 Rad8 15.h3 Bf4 16.Nf1 (16.Bd3 Qb8=) 16...Ne4 17.Rad1 Ndf6 18.Bd3 h6 19.Be4 Ne4 20.Rd8 Rd8 21.Re2 Qd6 22.Ne3 Qd3 23.Qd3 Rd3 24.Ne1 Rd2 25.Rd2 Nd2 26.N1c2 (26.Nf5 g6 27.Nd3 gf5 28.Nf4 Nc4-/+) 26...Be4 27.Na3 Bd3 (27...Be3 28.fe3 f6 29.Bc3-+) 28.g3? (better 28.Nd5 g5 29.Nf4 gf4 30.Be5=+) 28...Be3-+ 29.fe3 Nc4 30.Nc4 Bc4 31.Be5 Ba2 (31...Bb5 32.Kf2-+) 32.Bb8 c4 33.e4? (better 33.Kf2-+) 33...c3 34.Kf2 c2 35.Bf4 Bc4 36.Bc1 (36.Ke1 Bb5 37.Kd2 Ba4-+) 36...Bb5 37.Ke3 Bc6 (better 37...Ba4 38.e5-+) 38.Kd2 (38.e5-+) 38...Be4 39.Ke3 Bg6 40.g4 f6 0-1. Newdent (2390) - opperwezen (2855), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.b5 Bb7 4.d3)

4.d3 Nf6 5.Bb2 d6 6.Be2 Nbd7 7.Nf3 e5 8.Nbd2 Be7 9.0-0 Nf8 (9...0-0 10.a4=) 10.Nc4 Ne6 11.a4 0-0 12.a5 Nd7 13.a6 Bc8 14.Ne3 Nc7 15.c4 g6 (15...Nf6 16.Nd2=) 16.Ne1 Bg5 17.Bc1 f5 18.ef5 gf5 19.g3 (19.Bf3 Rb8+=) 19...Ne6 (19...f4 20.N3c2=) 20.Bf3+= Rb8 21.h4 Be7 22.Bd5 Nf6 23.Nf5 (better is 23.Bg2 f4 24.Nd5=) 23...Kh8?? (better is 23...Nd5 24.Nh6 Kg7 25.cd5 Nd4-/+) 24.Ne7 Qe7 25.Bg2 Rg8 26.Ra2 Nd4 27.Bg5 Be6 28.f4 Qg7 (28...e4 29.f5 (29.de4?! Bc4 30.e5 de5+=; 29.Be4?! Rg5 30.hg5 Ne4+=) 29...Bf7 30.Nc2+-) 29.fe5+- Ng4 (better is 29...Nd7+-) 30.Rf6! Ne5 (30...Nf6 31.Bf6) 31.Be4 Bg4 32.Qb1 Nf7 33.Raf2 (better is 33.Rf7!? Qf7 34.Rf2+/-) 33...Ng5= 34.hg5 Qg5 35.Qb2 (35.Rf7 Rg7 36.Qb2 Rbg8=) 35...Bh3 (35...Bh5 36.Ng2 Qg3 37.R6f5-/+) 36.R6f3 Qg7 (36...Qe5 37.Rf7 Rg3 38.Kh1+=) 37.Rf7 Qg3 38.Ng2 Rg5 (better is 38...Rg7!? 39.Rf8 Rf8 40.Rf8 Rg8+=) 39.Rh7+/- Kg8 40.Ra7 Bg2 41.Bg2 Re8 42.Qd2 Re1?? 43.Qe1+= Nf3 44.Kf1 Nh2?? 45.Ke2+- Re5 46.Be4 Ng4 47.Rf8! (47.Rf8 Kf8 48.Qg3 Re4 49.de4 Ke8 50.Qg4 d5 51.Qc8) 1–0. Diaz Lombardo,Isidro (2000) – Vaca Kram,Luis (2015), Fide Mercenarios 9th, 1995. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.e5 Qc7 5.Bb2 d6 6.ed6 Qd6 7.c4 (7.Na3!?+=) 7...e5 8.Nf3 Nd7 (8...e4 9.Qe2=) 9.Nc3 (9.Ne5!? 0-0-0 10.Nd7 Rd7 11.Qg4=) 9...f5 10.Qe2 Ngf6 11.d3 Be7 12.Nd1 e4 13.de4 fe4 14.Ng5 h6 15.Nh3 0-0-0 (15...Ne5 16.Be5 Qe5 17.Rb1-/+) 16.Ne3 g5 (16...Ne5 17.Nf5 Nd3 18.Qd3 ed3 19.Nd6 Rd6 20.f3 d2 21.Kd1+=) 17.a4+= Ne5 18.Be5 Qe5 19.Rc1 Rd7 20.Qc2 Rhd8 21.Be2 Rd4 22.Ng4? (better is 22.a5!?+=) 22...Ng4-+ 23.Bg4 Kb8 24.0-0 Bd6 25.g3 e3 (25...h5 26.Be2-+) 26.f4? (better is 26.Qf5-+) 26...gf4 (26...Qg7 27.Bf3 gf4 28.Bb7 Qb7 29.Qg2 Qg2 30.Kg2 fg3 31.hg3-+) 27.Rf4 (27.Nf4 Rg8 28.Be6 Rg5-+) 27...Qg7 (27...Rf4?! 28.Nf4 Rg8 29.h3-+) 28.Rd4 cd4 (28...Qd4?! 29.Be2 Bg3 30.hg3-+) 29.Bf5 (29.Qd1 d3! 30.c5 Bc5 31.Be2-+) 29...Bg3! 30.hg3 Qg3 31.Kf1 Rf8 32.Ke2 Qf3 33.Kd3 Qf5 34.Kd4 Qh3 35.Qg6 Rd8 36.Kc3 e2 37.Kb2 Rd2 38.Rc2 e1Q (38...e1Q 39.Qg8 Bc8 40.Rd2 Qd2 41.Kb1 Qf1) 0–1. Anderson,George – Degroot,Stephen (1635), Winnipeg TNT April op, 2005. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

4.f3 d5 5.ed5 Qd5 6.Nc3 Qe5 7.Qe2 Nd7 8.Bb2 Ngf6 9.Qe5 Ne5 10.Ne4 (10.Be2 e6=) 10...Ne4 (10...Nf3 11.Nf3 Be4 12.d3=+) 11.Be5 (11.fe4 Ng6 12.e5 Rd8=) 11...Nd6=+ 12.Nh3 f6 13.Bd6 ed6 14.Nf4 d5 15.Bd3 (15.c4 d4=) 15...Bd6 16.Ne2 (16.g3 g5 17.Ne2 Kf7=+) 16...g6 (16...c4 17.Bf5-/+) 17.c3 Kf7 18.Bc2 (18.Kf2!?-/+) 18...a6 19.Ba4 ab5 20.Bb5 Ra5 (20...Ra3!?-/+) 21.a4 Rha8 (21...Ba6 22.Kf2=+) 22.Kf2=+ Ba6 (better 22...Rd8=+) 23.Ba6?? (better 23.Bc6 Ra7 24.Bd5 Kg7 25.c4=) 23...R8a6-+ 24.Rhb1 (24.g3 b5-+) 24...Bc7 (24...b5!? 25.Ra3 Ra7 26.g3-+) 25.d4-/+ c4 (worse 25...Bh2 26.g3+=; 25...Ra4?! 26.Ra4 Ra4 27.dc5=) 26.Ng3 (26.Rb4 Ra7-/+) 26...Ra4 (26...b5 27.Nf1 ba4 28.Ne3-+) 27.Ra4-/+ Ra4 28.Rb5? (28.Ne2!?-/+) 28...Ke6 (better 28...Ra3!? 29.Ke1 Rc3 30.Ne2-+) 29.Ke3 Ra2 30.Ne2 Kd6 (30...Bh2?! 31.Rb6 Kf7 32.Rb7 Ke6 33.Rb6 Ke7 34.Rb7 Ke6 35.Rb6=) 31.g3 (31.Rb1 Kc6-+) 31...Kc6 32.Rb1 b5 33.h4 (33.f4 f5 34.Kf2 Ba5-+) 33...Bd6 (33...Ba5 34.Rc1-+) 34.f4 (34.h5 gh5 35.f4 Ra7-+) 34...h5 35.f5 gf5 36.Rf1 b4 37.cb4 Bb4 (37...Ra3!? 38.Kf2-+) 38.Rf5 c3 (38...Bd2!? 39.Kf2 c3 40.Rh5-+) 39.Rf6-/+ Kb5 40.g4? (better 40.Rf7 Ra1 41.Rc7-/+) 40...hg4-+ 41.h5 c2 (better 41...Ra1 42.Rf7 Rh1-+) 42.h6?? (better 42.Kd3=+) 42...Ra3-+ 43.Kf2 Rh3 44.Rf7 (44.Kg2 Bd2 45.Rf2-+) 44...Rh2 45.Ke3 Re2! 46.Ke2 c1Q 47.h7 (47.Rb7 Ka4 48.Rb4 Kb4 49.h7 Qh1 50.Ke3 Qh6 51.Kf2 Qh2 52.Ke1 Qh7 53.Kf2 Qh2 54.Ke3 g3 55.Kf4 g2 56.Kf5 Qd6 57.Kg4 g1Q 58.Kf3 Qe6 59.Kf4 Qge3) 47…Qe1 (47...Qe1 48.Kd3 Qe4) 0–1. Sulaiman,Ahmad Ashrafi (1880) – Markov,M KGZ (2390), 5th Asian Team Men Blitz, 2017. (=1.e4 c5 2.b4 b6 3.b5 Bb7)

3.b5 d6

4.Bb2 Bb7 5.d3 (5.Nc3 Nf6 6.Bd3 e5=) 5...Nd7 (5...a6 6.Nc3=) 6.Nf3 Ngf6 7.c4 (7.Be2 a6 8.Nc3 ab5 9.Nb5 e6=) 7...g6 (7...e5 8.Be2=) 8.Be2 Bg7 9.0-0 0-0 10.Nbd2 e5 (10...a6 11.ba6 Ra6 12.Qb3=) 11.Nb3 (11.a4 Qc7+=) 11...a6= 12.ba6 Ra6 13.Qd2 Bc6 (13...Ne8 14.Rfb1=) 14.a3 (14.Ng5 h6 15.Nf3 Ne8=) 14...b5 (14...Nh5 15.g3=) 15.cb5 Bb5 16.Rab1 (16.Rfb1 Qe7=) 16...Qb6 (16...Qe7 17.Rfc1=) 17.Na1 Qa7 18.Nc2 Nb6 (better is 18...Rb8=) 19.Be5+/- de5 20.Rb5 Nfd7 21.Rfb1 Bf6 22.g3 (22.Qh6 Rb8+/-) 22...Kg7 23.Ne3 Rb8 (23...Kg8 24.Qb2+/-) 24.Ng4 Be7 (better is 24...Ra3!? 25.Qh6 Kg8 26.Nf6 Nf6 27.Ne5 Nbd7 28.Rb8 Nb8+/-) 25.Nfe5+- Ne5 26.Qh6 Kh8 (26...Kg8 27.Ne5 Bf8+-) 27.Ne5 Bf8 28.Qf4 Rc8 (28...Rb7 29.Bg4 Qb8 30.Nf7 Kg7 31.Qb8 Rb8 32.Ne5+-) 29.Qf7 Qf7 30.Nf7 Kg7 (30...Kg8 31.Ng5 Be7 32.h4+-) 31.Ne5 (31.Ng5 Rc6+-) 31...Na4 (31...Bd6 32.Ng6 (worse is 32.Rb6 Rb6 33.Rb6 Be5+-) 32...Na4 33.Nh4+-) 32.Rb7 Kg8 (32...Kh8 33.d4! Raa8 34.Nf7 Kg8 35.Ng5 cd4 36.Bg4+-) 33.d4! Raa8 34.Bc4 Kh8 35.Nf7 (35.Nf7 Kg7 36.Ng5 Rc7 37.Rc7 Be7 38.Re7 Kf6 39.Rbb7 Kg5 40.f4 Kg4 41.Be2 Kh3 42.Rh7) 1–0. Elias Rivas,Fernando – Mottershead,Richard, IECC, 2002. (=1.e4 c5 2.b4 b6 3.b5 d6)

4.c4 e5 5.Nf3 Nf6 6.Nc3 Bg4 (6...a6 7.Bd3+=) 7.h3 (7.Be2 Be7+=) 7...Bh5 8.Be2 a6 9.Qa4 (9.0-0 ab5 10.cb5 Nbd7+=) 9...Be7 10.d3 (10.0-0 0-0+-) 10...0-0 11.0-0 a5 12.Bd2 (12.Nd1 Nbd7+-) 12...Nbd7 13.Qc2 (13.Rab1 h6+-) 13...Qc7 (13...h6 14.Be3+-) 14.Rfe1 (14.Rae1 Rfe8+-) 14...Rfe8 15.g4 (15.Be3 Nf8+=) 15...Bg6 16.Nh4 Nf8 (16...h6 17.Ng6 fg6 18.h4+=) 17.g5 N6d7 18.Nf5 Qd8 (18...Ne6 19.Nd5 Qd8 20.Nfe7 Re7 21.h4+-) 19.h4 Ne6 (better 19...f6!? 20.h5 Bf7+-) 20.Ne7+- Qe7 21.Nd5 Qd8 22.h5 Nd4 (22...Bh5 23.Bh5 Ng5 24.Qd1+-) 23.Qd1 Bh5 (23...Nf8 24.Be3+-) 24.Bh5 g6 (24...Nf8 25.Re3+-) 25.Bg4 Ne6 26.Kh1 (better 26.Kh2 Rb8+-) 26...Ndf8 (26...Rf8 27.Qf3+-) 27.Nf6 Kg7 (27...Kh8 28.Kg2 h5 29.Bh5+-) 28.Qf3 Re7 (28...Nd7 29.Ne8 Qe8 30.Kg2+-) 29.Qh3 Nd4 (29...Nf4 30.Qh6 Kh8 31.Bf4 ef4 32.Kg2+-) 30.Kg2 Nc2 (30...Re6 31.Be6 fe6+-) 31.Qh6 Kh8 32.Rh1 Re6 (32...Ne1 33.Rae1 Qc7 34.Qf8 Rf8 35.Rh7) 33.Qf8! Qf8 (33...Qf8 34.Rh7) 34.Rh7 1–0. Janek – Swefs, internet, 2017. (=1.e4 c5 2.b4 b6 3.b5 d6)

4.Bc4 Bb7 5.Nc3 Nf6 6.Qe2 Nbd7 7.f4 Qc7 8.Nf3 g6 9.Bf7 (better is 9.0-0!? e6 10.Bb2+=) 9...Kf7+= 10.Ng5 Ke8 11.Qc4 d5 12.ed5 Qd6 13.Bb2 Nd5?? (better is 13...h6 14.Ne6 Nd5 15.Nd5 A) 15...Bd5? 16.Nc7 Kd8 17.Nd5 (worse is 17.Qd5 Qd5 18.Nd5 Rh7+/-) 17...Qe6 18.Kf2+-; B) 15...Qe6 16.Qe2 Qe2 17.Ke2 Bd5 18.Bh8 Bc4 19.Kf2 Bb5-+) 14.Nce4+- Qf4 15.Bh8 Ne5 (15...Bh6 16.Ne6 (16.Nh7 Nb4 17.d3 Be4 18.Qe4 Nc2 19.Ke2 Qe4 20.de4 Na1 21.Ra1 a6-/+) 16...Qf7 17.N4g5 Bg5 18.Ng5+/-) 16.Be5 Qe5 17.0-0 h6 18.Nf3 Qf4 19.Rae1 Bg7 20.g3 (20.Nh4! Bd4 21.Kh1 Qh4+-) 20...Qc7 21.c3 g5 22.Qe2 Qd7 23.d4 Nc3? (better is 23...cd4 24.cd4 Nc7+-) 24.Nc3+- g4 25.Ne5 Qd4 26.Rf2 Qc3 27.Ng4 (better is 27.Nc4 Bf6 28.Nd6 Kd7 29.Nb7+-) 27...Qe1 (27...e5 28.Ne5 Be5 29.Qe5 Qe5 30.Re5 Kd7 31.Rd2 Kc8 32.Re8 Kc7 33.Re7 Kb8+-) 28.Qe1 h5 (28...Bd4 29.Qe6 Rd8 30.Ne5 Be5 31.Qe5 Rd1 32.Rf1 Rf1 33.Kf1+-) 29.Ne5 Rd8 30.Qe2 Rd5 31.Qh5 Kd8 32.Rf5 (32.Rf5 Kc7 33.Qf7+-) 1–0. Schulz,Hans Juergen (2030) – Diehl,Walter (1750), Hamburg League qual, 2005. (=1.e4 c5 2.b4 b6 3.b5 d6)

4.Nf3 Bb7 5.Bc4 Nf6 6.Nc3 Nbd7 (6...e6 7.Qe2=) 7.0-0 Ne4 8.Ne4 Be4 (8...d5 9.Bd5 Bd5=) 9.Ng5 (9.Bf7 Kf7 10.Ng5 Kg8 11.Ne4 e6+-) 9...d5 (9...Bg6!? 10.Bd5 Rc8=+) 10.Ne4+= dc4 11.Bb2 e5 (11...a6 12.Qe2 e6 13.a4+=) 12.f4+- Qc7 (12...Qh4!?+-) 13.fe5+- Ne5 14.Qh5 Ng6 15.Qd5 Rd8 16.Rae1 Rd5 (16...Ne7 17.Qf7 Kd7 18.Nf6 gf6 19.Qe6 Ke8 20.Qf6 Kd7 21.Qh8 Qb8 22.Qh7 Qd6 23.Qh3 Kc7+-) 17.Nf6 (17.Nf6 Kd8 18.Re8) 1–0. DEFFM – liderdelnort, freechess.org, 2018.

4.g3 Bb7 5.Nc3 g6 6.Bg2 Bg7 7.Nge2 f5 (better is 7...a6!?+=) 8.d3 (8.0-0 fe4 9.Bb2 Nd7+/-) 8...Nf6 9.Rb1 0-0 10.0-0 fe4 (10...Qc8 11.Bg5+=) 11.de4 Qc8 (11...Nh5 12.Nd5 e6 13.Ndf4 Nf4 14.Nf4+/- (worse is 14.gf4 a6+=)) 12.Nf4 Rd8?? (12...Nbd7 13.Bh3+/-) 13.Re1 (better is 13.e5 Nfd7 14.ed6 ed6+-) 13...Kh8 (13...Nbd7!? 14.Bh3+/-) 14.Bh3 Nfd7? (better is 14...Nbd7 15.Ne6 a6 16.ba6 Ra6 17.Nd8 Qd8+-) 15.Bb2 (15.Ncd5 Rf8 16.Ne7 Qe8+-) 15...Be5 (15...Rf8+-) 16.Ncd5 Re8 17.Ne6 Bb2 18.Rb2 Bd5 19.Qd5 Nf8 20.Ng5 Nbd7 21.Qf7 Ne5 22.Bc8 Nf7 23.Nf7 Kg7 24.Bb7 Rab8? 25.Bc6 Rec8?? 26.Ng5 h6 27.Nf3 a6 28.a4 g5 29.e5 g4 30.ed6 ed6 31.Nh4 Kf6 32.c3 ab5 33.ab5 Rc7 34.Rd2 Rd8 35.Re4 h5 36.Rd5 Rh7 37.Rf5 Kg7 38.Bd5 Rd7 39.Ref4 Ng6 40.Rg5 Rh6 41.Be4 (41.Be4 Rf7 42.Ng6 Rf4 43.Nf4 Kf6 44.Nd5 Ke6 45.Nb6+-) 1–0. Martinez,Jorge Alexander (2205) – Angel,Antonio (1905), Bogota COL, McGregor Mem, 2013. (=1.e4 c5 2.b4?? b6?? 3.b5 d6)

3.b5 e5

4.Nc3 Nf6 5.Bc4 Bb7 6.d3 d6 7.Nf3 h6 8.0-0 Be7 9.Nh4 g6 10.a4 Nbd7 11.h3 0-0?? 12.Ng6+- Re8 13.Qf3 Kg7 14.Nh4 Rg8 15.Nf5 Kh7 16.Nh6 Rg6 17.Nf7 Qc7 18.h4 Kg7 19.h5 Nh5 20.Qh5 Nf6 21.Bh6 (21.Bh6 Kh7 22.Qh3+-) 1–0. acidtest – rhometal (1670), net–chess.com, 2010.

4.Bc4 Bb7 5.Nf3 d6 6.d3 Be7 7.Nc3 Nf6 8.a4 0-0 9.0-0 Nbd7 10.Bd2 a6 11.Qb1 a5 12.Qb3 h6 13.h3 Kh8? (better 13...Qc7!?+=) 14.Bf7+- Rc8? (better 14...Ne8+-) 15.Nh4 Kh7 16.Ng6 Rh8 (16...Rf7 17.Qf7 Bf8+-) 17.Qe6 Nf8 (17...Rf8 18.Ne7 Rf7 19.Qf7 Rc7+-) 18.Qf5 (18.Qe7?! Ng6 19.Qe6 Rf8 20.Bg6 Kg6+-) 18...Qd7 (18...Rg8 19.Nf8 Kh8 20.Qh7 Nh7 21.Ng6) 19.Nf8 1–0. bulent_2010 – elsewhere, ChessWorld.net, 2017. (=1.e4 c5 2.b4 e5 3.b5 b6)

4.Bc4 Nf6 5.Nf3 d6 6.Nc3 Bb7 7.Ng5 d5 8.ed5 h6 9.Nf3 Bd6 10.0-0 0-0 11.d3 Bc7 12.Nd2 Nd5 13.Qf3 Nc3 14.Qb7 Ne2 15.Kh1 Nd7 16.Bb2 Nf6 17.Nf3 (17.Ne4!?+/-) 17...Nd4= 18.Nd4 ed4 19.Rae1 Qd6 20.g3 Rfe8 (20...a6 21.a4 ab5 22.Bb5=) 21.Bc1 (21.c3 Reb8 22.Qa6 dc3 23.Bc3 Nd5+=) 21...Nh5 (better is 21...Qd7!?=) 22.Qf3+/- Qg6 23.Re7!? Re7 24.Qa8 Kh7 25.Bd5 Nf6 26.Bg2 c4 (26...Qh5!?+=) 27.Qc8 cd3 28.Bh3 (28.Ba3!? Re6 29.Qc7 dc2 30.f4+/-) 28...Qe4 29.f3 Qe2 30.Qf5 (better is 30.Bf5!? g6 31.Bd3=) 30...Kg8+= 31.cd3 (31.Qd3 Qd3 32.cd3-/+) 31...Qe5 (better is 31...Re6!? 32.Bg2 Qa2-/+) 32.Qc8 (better is 32.Bb2=) 32...Kh7?? (better is 32...Re8 33.Qb7 Qh5-/+) 33.Bf4+- Qc5 34.Rc1 Qd5 35.Bc7 Re2? (better is 35...Qf3 36.Bg2 Qd3+-) 36.Qf5 (36.Qf5 Qf5 37.Bf5 g6 38.Be4+-) 1–0. Staub,Pierre (1910) – Molad,A (1850), Torcy op–B, 1991. (=1.e4 c5 2.b4 b6 3.b5 e5)

4.Bc4 Nf6 5.Nf3 Bd6 6.d3 Qc7 7.Nh4 0-0 8.Bg5 Be7 9.Nf5 Bd8 10.Qf3 d6 11.Nc3 Be6 12.Bf6 Bf6 13.Nd5 (13.Nh6 Kh8+/-) 13...Qd8 14.Nf6 Qf6 15.Nd6 Qe7 16.Nf5 Bf5 (16...Qf6 17.Qg3+/-) 17.Qf5 (17.Bd5 Bd7 18.Ba8 Bb5+/-) 17...a6+/- 18.ba6 Na6 19.0-0 g6 20.Qg4 Qd6 21.c3 Nc7 22.f4 (better is 22.a4!?+/-) 22...b5= 23.fe5 Qe5 24.Bb3 Qc3 25.Qd7 Qd4 26.Qd4 cd4 27.Rac1 Ra7 (27...Ne6 28.Rc2=) 28.Rc6 Ne6 29.Be6 fe6 30.Rf8 Kf8 31.Re6 Ra2 32.Rb6 Rb2 33.Rd6 Rb4 34.Rd5 Ke7 35.Kf2 Kf6 ½–½. Djaffer,Salim – Boulekrouche,Yacine, Mokhtar Chergui Memorial 2nd, 2000. (=1.e4 c5 2.b4 b6 3.b5 e5)

4.Nf3 d5 5.Ne5 de4 (5...Qe7 6.Bb2 Nf6 7.Be2 de4 8.Na3+-) 6.Bc4+- Nh6 7.Bb3?? (7.Nc3 Bf5 8.Bd5 Nd7 9.Nd7 Bg4+-) 7...Qd4?? (7...Qg5!? 8.f4 Qg2-/+) 8.Nc4?? (better 8.Bb2 Qb2 9.Nc3+-) 8...Ng4?? (better 8...Bg4 9.Bb2 Bd1 10.Bd4 cd4 11.Kd1 Nd7=) 9.0-0+- Bd6 10.h3 (10.g3 Bc7 11.Bb2 Qd7+-) 10...Bh2 11.Kh1 Nf2 (11...Qa1?? 12.Bb2 (12.hg4?! Qb1 13.Qe2 Bc7+-) 12...Qb2 13.Nb2+-) 12.Rf2 Qf2 (12...Qa1?? 13.Bb2 Qb1 14.Qb1+-) 13.Kh2 0-0 14.Bb2 Bf5 (14...Nd7 15.Nc3 Nf6 16.Qe2 Qe2 17.Ne2+-) 15.Ne3 (15.Nc3 Nd7+-) 15...a6 16.Nc3 (16.Qh5 Qf4 17.g3 Qf2 18.Kh1 Bg6+-) 16...ab5 17.Nb5 Nc6 18.Nf5 (18.Bd5!? Bd7+-) 18...Qf5 19.Qe2 (better 19.Qe1 Rfd8 20.Qg3+-) 19...Na7? (better 19...Na5+-) 20.Rf1+- Qd7 21.Nc3 Qd4 (21...b5 22.a4 c4 23.Ba2+-) 22.Nd1 Qd6 23.Kh1 b5 (23...Nc6 24.Qe4 Qg6+-) 24.Qg4 (better 24.Ne3 Rae8 25.Bd5+-) 24...Qg6 25.Qg6 hg6 26.Bd5 Rad8 27.Ne3 Nc8 28.Rf4 (28.Be4!? f5 29.Bd5 Kh8 30.Be5+-) 28...Nb6 29.Be4 Rd2 30.Bd3 Rd8 (30...Na4 31.Bc1 Rd3 32.cd3+-) 31.Bc1 (better 31.Bb5 Nd5 32.Nd5 R8d5 33.Ba4+-) 31...R8d3+= 32.cd3 Ra2 33.Rf1 (33.Kh2 b4+=) 33...f6 (33...b4 34.Kg1=) 34.Kg1 (34.Kh2 Nd7=) 34...Kf7 (34...b4 35.Rf2 Ra1 36.Rf1=) 35.Rf2 (35.Ng4 b4=) 35...Ra1= 36.Rc2 Nd7 (36...Na4 37.Nf1 b4 38.Nd2=) 37.Kf2+- Ke6 38.Bb2 Ra4 39.g4 Kd6 40.Kg3 Nf8 41.h4 Ne6 42.Rf2 Rb4 43.h5 (better 43.Re2+=) 43...g5?? (better 43...Rb3=) 44.Nf5+- Kd7 45.Ng7! Nf4 (45...Ng7 46.Bf6 Double attack (46.Bf6 Decoy; 46.h6 Passed pawn)) 46.h6 Ke7 (46...Rb3 47.h7 Ng6+-) 47.h7 Ng6 48.Bf6 (48.Rf6 Rb3 49.Nf5 Kd7 50.Rg6 Rd3 51.Kg2 Rd2 52.Kh3 Re2 53.h8Q Re1 54.Qg7 Kd8 55.Bf6 Kc8 56.Nd6 Kb8 57.Qb7) 48...Kf7 49.Bc3 (49.Bd4 Ke7 50.Bc5 Kd7 51.Rf7 Kc8 52.Bb4 Kb8 53.Rf6 Nh8 54.Rf8 Ka7 55.Rh8 Kb7 56.Rf8 Ka6 57.h8Q Kb6 58.Rf7 Kc6 59.Qh6 Kd5 60.Qd6) 49...Rf4 50.h8Q! Nh8 (50...Nh8 51.Rf4 Deflection) 51.Rf4 gf4 52.Kf4 Ng6 53.Ke4 Ne7 (53...b4 54.Ba1+-) 54.Nf5 b4 55.Bb2 (better 55.Ba1 Ng8 56.Nd6 Kg6 57.Kd5+-) 55...Ke6 (55...Nc8+-) 56.Ne7 Ke7 1–0. Bashinsky,Sergey – Shilov,Sergey, Eaoaaneea Gnog, 2007. (=1.e4 c5 2.b4 e5 3.b5 b6)

3.b5 e6

4.c4 Bb7 5.Nc3 Qc7 6.Bb2 Nf6 7.d3 Be7 8.Nf3 d6 9.Be2 Nbd7 10.0-0 0-0 11.a4 Ne5 (11...d5 12.e5 Ng4 13.cd5 Nde5 14.Ne5 Ne5 15.de6 fe6 16.Ne4=) 12.Nd2= a6 13.f4 Ng6 14.Qe1 Rfd8 15.Qg3 d5 (better is 15...a5!?=) 16.cd5+/- ed5 17.e5 Ne8 18.Bg4 (18.ba6 Ba6 19.f5 Ne5+/-) 18...a5 19.e6 (19.Nf3 c4 20.d4 Bb4+/-) 19...f6 (19...Bd6 20.Ne2 Nf6 21.h4=) 20.Bf5 (20.Ne2 c4 21.Qe3 Bc5+/-) 20...Nf8 21.Rae1 (21.Rfe1 g6+=) 21...Nd6 (better is 21...g6!?=) 22.Bh3 d4 23.Nce4 Ne4 24.Ne4 (worse is 24.de4 c4 25.Ba3 c3 26.Be7 Qe7-+) 24...Bd5 25.Re2 Re8 (25...Ne6 26.Be6 Be6 27.f5 Qg3 28.Ng3+/- (28.hg3? Bd5-+)) 26.Rfe1 (26.f5 Qg3 27.hg3 Bb3+=) 26...Bb3 27.Ra1 (better is 27.Bc1!?+=) 27...Be6 28.Rae1 Bb3 (better is 28...Bf7+=) 29.Nf6!+/- Bf6 30.Re8 Re8 31.Re8 Qf7? (better is 31...Kf7 32.Re1 Ba4+/-) 32.Qe1+- Qc7 33.Be6! Be6 34.Qe6 Qf7 35.Qc6 Qb3 36.Qb6 Qd1 37.Kf2 Qd2 38.Re2 Qf4 39.Ke1 Qh2? 40.Qc5 Qg1 41.Kd2 Qb1 42.Qd5 Kh8 43.Bd4 Qb4 44.Ke3 Qa4 45.Bf6 gf6 46.Qf7 Ng6 47.Qf6 Kg8 48.Qe6 Kg7 49.Qc4 Qd1 50.Qc3 Kh6 51.Qa5 Qc1 52.Qd2 Qc5 53.d4 Qb5 54.d5 Qc5 55.Kf3 Kg7 56.g3 Qf8 57.Kg2 Qa8 58.Kh2 Qd8 59.d6 Qd7 60.Qd4 Kh6 61.Rc2 Qf5 62.Qe3 Kg7 63.Rc7 Kg8 64.d7 Qh5 65.Kg2 Qd5 66.Qf3 Qd2 67.Kf1 Qd6 68.d8Q! Qd8 69.Qf7 (69.Qf7 Kh8 70.Qh7) 1–0. Golovina,Darya – Kosheparova,Tatiana, Novokuznetsk RUS, Open (w), 2011. (=1.e4 c5 2.b4 b6 3.b5 e6)

4.Nf3 Bb7 5.Nc3+= d5 6.ed5 ed5 7.d4 c4 8.a4 (8.Qe2 Ne7+=) 8...a6 (8...Bb4 9.Bd2=) 9.Ba3 (9.Qe2 Be7=) 9...Ba3 10.Ra3 Qd6 (10...Ne7 11.Be2=) 11.Qa1 (11.Ra1 Qb4 12.Qd2 Nf6=) 11...Nd7 (11...Nf6 12.Be2=) 12.Be2= Ngf6 13.0-0 0-0 14.a5 (14.Re1 Qf4=) 14...Rfb8 (14...ba5 15.Rb1+=) 15.ab6 ab5 16.Nb5 Qb6 17.Rb1 Bc6 (17...Ne4 18.Qb2+=) 18.Nc3= Qc7 (18...Ra3 19.Qa3 Qc7 20.Rb8 Qb8 21.Qe7=) 19.Rb8 Rb8 20.Ra7 Qb6 (20...Qf4 21.Nd1=) 21.Qa5 (21.h3 Re8=) 21...Qa5 (21...Qb2 22.Bd1+=) 22.Ra5= Rb2 23.Ne5? (better is 23.Ra2 Ra2 24.Na2=) 23...Ne5-+ 24.de5 Rc2 25.Rc5 Ne8 (25...Bb7!? 26.Rc7 Rc3 27.Rb7 Rc1 28.Bf1-+) 26.Rc6-/+ Rc3 27.f4 Ra3 (27...Kf8 28.Rc5 Rc2+=) 28.Kf2 (28.Rc5 Kf8=) 28...Kf8 (28...Ra5 29.Ke3=) 29.g4 (better is 29.Bf3!? c3 30.Bd5+=) 29...Ke7 (29...Ra2 30.Ke1 Ra5 31.h4-+) 30.Bf3 (30.Rc5 Ke6-/+) 30...Rd3 (30...Ra5 31.Rb6 Nc7 32.Rc6-/+) 31.h4 (31.Rc5 Ke6-/+) 31...Kd7 32.Rc5 Nc7 33.f5 g6 (33...h6 34.g5 c3 35.f6 gf6 36.gh6+=) 34.h5 gh5 35.gh5 h6 36.Bg4 Rd4 37.Kg3 Re4 38.f6 Kd8 39.e6 Ne6 40.Rd5 Ke8 41.Rd6 Rd4 42.Ra6 Rd3 43.Kf2 Ng5 44.Ra7? Ne4-+ 45.Ke1 Nf6 46.Be2 Rd7 47.Ra4 c3 48.Bb5 Nh5 49.Bd7 Kd7 50.Rh4 Nf6 51.Rh6 Ke6 52.Kd1 Ke5-+ 53.Kc2 Ne4 54.Kd3 f5 55.Rh8 Kf4 56.Rg8 Kf3= 57.Rg7 Kf4 58.Rf7 Ke5 59.Ke3 Ke6-/+ 60.Rf8 Ke7?? 61.Rf5+= Nd6 ½–½. Anderson,George – Zaczek,Jonathan (1750), Winnipeg Remembrance op, 2003.

4.Nf3 d5 5.ed5 ed5 6.Bb2 =.

3.Bc4 Bb7

4.bc5 bc5 5.d3 g6 6.Bb2 Nf6 7.Nf3 d6 8.Ng5 e6 9.Qf3 Bg7 10.0-0 0-0 11.Qh3 h6 12.Nf3 Qb6 13.Bb3 Nbd7 14.Nbd2 Rac8 15.Rab1 Rfe8? 16.Ba4 Qa5? 17.Bf6 Qa4 18.Rb7?? Nf6= 19.Rb2 Rb8 20.Rfb1? Rb2-+ 21.Rb2 Kh7?? 22.Nc4?? Ne4!-+ 23.de4 Bb2 24.Nb2-/+ Qc2 25.g3?? Qb2 26.Ng5 Kg7 27.Nf3 Qa2 28.e5 Qa1 29.Kg2 de5 30.Qh4 a5 0–1. Hoerr,Matthias – Fey,Franziska, GER–ch U11 Pinneberg (2), 1996.

4.d3 Nc6 5.bc5+= bc5 6.Qh5 (6.Nf3 Na5 7.Bb5 Nf6+=) 6...g6 (6...e6!?=) 7.Qc5+/- Bg7 8.c3 Rc8 9.Qa3 Ne5 10.Nd2 (10.Qa7 Be4 11.Nf3 Bf3 12.gf3 Nc4 13.dc4 Rc4-/+) 10...Nf6 11.Ngf3 (better is 11.f3!?+=) 11...Nc4-/+ 12.Nc4 Ne4! 13.Bb2 (13.de4 Rc4 Double attack) 13...Nc5 14.Kd2 Qc7 15.Ne3 0-0 (15...Qd6 16.d4 Ne4 17.Ke1 Qa3 18.Ba3 Nc3 19.Kd2 Bf3 20.gf3-+) 16.c4 (16.Qa7 Ra8 17.Nd5 Qd6-+) 16...Bb2 (16...Qd6 17.Nd5-+) 17.Qb2-/+ Qd6 (17...Bf3!? 18.gf3 Rb8-/+) 18.Qd4+= Qd4 (18...Qa6!?+=) 19.Nd4= Rfd8 20.Nb5 a6 21.Nc3 Rb8 22.Rhb1 Bc6 23.f3 e6 ½–½. Demeter,Vilmos – Bolvary,Tamara (2010), HUN–chT2 Maroczy, 2003. (=1.e4 c5 2.b4 b6 3.Bc4 Bb7)

4.d3 e6 5.Bb2 Nf6 6.Nf3 Be7 7.0-0 (7.e5 Nd5 8.bc5 Bc5=) 7...0-0 (7...cb4 8.e5 Nd5 9.Bd5 Bd5 10.a3-/+) 8.Bb3 (8.bc5 bc5 9.Na3 Nc6=) 8...d6 (8...cb4!? 9.e5 Nd5-/+) 9.b5 Nbd7 10.Nbd2 Ne8 11.Qe2 Nc7 12.a4 d5 13.ed5 Bd5 14.c4 Bb7 15.Ne4 Nf6 16.Rad1 Nce8 17.Rfe1 Ne4 18.de4 Qc7 19.Ne5 (19.Bc2 f6+=) 19...Bd6+= 20.Ng4 e5 21.Rd3 (21.Qd3 f6+=) 21...Qe7 (21...h5 22.Ne3 Be4 23.Rdd1=) 22.Red1 f6 23.Rg3 g6 24.Nh6 Kh8 25.h4 Ng7 26.Rgd3 Rad8 27.Qd2 Bc7 28.Rd8 (28.Rd7!? Qe6 29.f3+=) 28...Rd8= (28...Qd8?? 29.Nf7 Rf7 30.Qd8 Bd8 31.Rd8 Ne8 32.Re8 Kg7 33.f3+-) 29.Qe2 Rd1 30.Bd1 Ne6 31.g3 Bc8 32.h5 Qg7 33.Qe3 Nd4 34.Kg2 Be6 35.Qc1 Bd6 36.Ng4 gh5-/+ 37.Ne3 h4 38.g4 h5 39.f3 hg4 40.fg4 Qg5 41.Nd5 Qg6 42.Kh3 f5! 43.ef5 Nf5?? 44.Bc2?? Kg8?? 45.Qe1 Qg5 46.gf5 Bf5 47.Bf5 Qf5 48.Kh4 Qh7 49.Kg4 Qg6 50.Kh3 Qf5 51.Kg2 e4? 52.Nf6 Kf7 53.Ne4 Bf4 54.Qe2 Qg6 55.Kf1 Qf5 56.Qf3 Ke6 57.Nf2 Qb1 58.Nd1 Qf5 59.Qd5! Qd5 60.cd5 Kd5 61.Ke2 Kc4 62.Bf6 Kb3 63.Nc3 Bc1 64.Be5?? Bb2-+ 65.Kd2 Bc3 66.Bc3 Ka4 67.Kc2 Kb5 68.Kb3 Kc6 69.Be5 b5 70.Bc3 Kd5 71.Ba5 Kd4 72.Bc3 Kd5 73.Ba5 Kc6 74.Bc3 Kb6 75.Bf6 a5 76.Bd8 Ka6 77.Be7 a4 78.Ka3 Kb6 79.Bd8 Kc6 80.Be7 Kd5 81.Bf6?! Kc4 82.Be7 Kd5 83.Bf6 Ke4 84.Be7 c4?? 85.Bf6? Kd3 86.Kb4= a3 87.Ka3 c3 88.Kb4 c2 89.Bg5 Ke2 90.Kb5 Kd1 ½–½. Darwisch,Mohamed (1825) – Herding,Rudolf (1645), Muensterland Verbandsklasse–A, 2006. (=1.e4 c5 2.b4 b6 3.Bc4 Bb7)

4.d3 e6 5.bc5 bc5 (5...b5 6.Bb3=) 6.Nf3+= Nf6 7.0-0 Be7 8.Nc3 Nc6 9.h3 (9.Rb1 Na5+=) 9...h6 (9...d5 10.Rb1 Rb8 11.ed5 ed5 12.Bb3=) 10.e5+= Nh7 11.Ne4 Na5 12.Ned2 (12.Bb5 Rb8 13.Rb1 Bc6=) 12...Nc4 13.Nc4 0-0 14.Be3 f6 15.Rb1 Bd5 16.Nfd2 fe5 17.Ne5 d6 (17...Rf5!? 18.Ng4 Ba2+=) 18.Ng6= Rf6 19.Qg4 Qe8 (19...Nf8 20.Nf8 Kf8 21.Ne4 Be4 22.de4+=) 20.Nf4 (20.Ne7 Qe7 21.c4 Bc6+=) 20...Ba2= 21.Rb2 Bd5 22.c4 Bc6 23.Ne4 Be4 24.de4= Nf8 25.Rb7 a5 26.Ra1 a4 27.Bc1 Kh7 28.Bb2= Rf7 29.Ne6+= Ne6 30.Qe6 Kg8 31.f3 Bf8? 32.Qe8+- Re8 33.Rf7 Kf7 34.Ra4 Rb8 35.Bc3 Rb1 36.Kf2 Rc1 37.Bd2 Rd1 38.Bf4 g5+/- 39.Be3 Be7 40.h4! Ke6 41.h5 Rh1+/- 42.g4 Bf6 43.Ra6 Bd4 44.Bd4+- cd4 45.c5 Rh2 46.Ke1 Rc2 47.Rd6 Ke5 48.Rh6 Rc5 49.Rg6 Kf4 50.h6 Ke3= 51.Kd1 d3 52.Rd6 Ra5 53.Kc1 Rc5 54.Kd1 Rb5 55.Rc6?? Rb1+= 56.Rc1 Rb6 57.Rc3 Rb1 58.Rc1-/+ Rb6 59.Rc3 ½–½. Garcia Alvarez,JB – Perez Rodriguez,D, Asturias–chT40 Primera A, 2001. (=1.e4 c5 2.b4 b6 3.Bc4 Bb7)

4.d3 e6 5.Qe2 Nc6 6.Nf3 Be7 7.c3 cb4=+ 8.Bb2 a6 9.0-0=+ Bf6 10.e5 Be7 11.d4 b5 12.Bb3 a5 13.cb4 a4 14.Bc2 Nb4=+ 15.Nc3? Bf3 16.gf3 Nc2 17.Qc2 Rc8 18.Qe4? Qa5?? 19.Qb7 Rc3 20.Bc3 Qc3 21.Qb8 Bd8-+ 22.Rac1 Qd4 23.Rfd1 Qh4 24.Qb5 Ne7?? 25.Qd7 (25.Qd7 Kf8 26.Qd8) 1–0. mbarker (2155) – eweram (2100), net–chess.com, 2008.

4.d3 e6 5.Nf3 Qc7 (5...cb4 6.0-0=) 6.Bb2 (6.b5 d5 7.ed5 ed5 8.Qe2 Qe7=) 6...Nf6 (6...cb4 7.Qe2=) 7.0-0 cb4 8.Nbd2 Nc6 9.d4 (9.e5 Ng4 10.Qe2 Be7=) 9...Na5 10.Bd3 d5 11.Bb5 Bc6 12.Bc6 Qc6 13.Ne5 Qc7 (13...Qb7 14.ed5 Qd5 15.Re1=) 14.ed5 (14.c3 Nd7 15.Qa4 bc3 16.Bc3 Nc4 17.Nec4 dc4=) 14...Nd5 15.Ne4 (15.a3 b5=) 15...Nc4 16.Nc4 Qc4 17.c3 (17.a3 ba3 18.Ba3 Ba3 19.Ra3 0-0+=) 17...Nc3 (17...bc3 18.Rc1 Qa2 19.Nc3 Nc3 (worse is 19...Qb2 20.Qa4 b5 21.Nb5=) 20.Bc3 Qd5-/+) 18.Bc3+= bc3 19.Rc1 Be7 (19...Rd8!? 20.Rc3 Qd4+=) 20.Rc3+= Qd5 21.Qc2 0-0 22.Rd1 f5 23.Rc7 Qd8 24.Nd2 Bc5 25.Rc6? Qd7-+ 26.Qa4 Rac8 27.Nc4 Qc6 28.Qc6 Rc6 29.dc5 Rc5 30.Ne3 f4 (30...f4 31.Nf1 Rfc8-+) 0–1. Diete,Guenter (1820) – Woerl,Richard (2085), Bad Woerishofen op, 2001. (=1.e4 c5 2.b4 b6 3.Bc4 Bb7)

4.d3 Nf6 5.Nf3 g6 6.Bb2 Bg7 (6...cb4 7.0-0+=) 7.Nbd2 (7.bc5 b5 8.Bb3 0-0+=) 7...0-0 (7...cb4 8.c3=) 8.bc5 bc5 9.Rb1 Qc7 10.0-0 Nc6 11.a3 d6 12.Re1 e5 13.Nf1 Nd4 14.c3 Nf3 15.Qf3 Rab8 16.Ne3 Bc6 17.Nd5 (17.h3 Rb7=) 17...Bd5 18.ed5 White has the pair of bishops 18...Rb6 19.Ba2 Rfb8 20.Ba1 (20.Re2 R6b7=) 20...Rb1+= 21.Rb1 Rb1-/+ 22.Bb1 Qa5 23.Qe2 Nd5 24.Qb2 Qc7 25.Ba2 Nf4 26.Qb5 Qe7 27.g3 Nh5 28.Bb2 Bh6 29.Bd5 Nf6 30.Bg2 Bd2 31.Qb8 Kg7 32.d4?? ed4-+ 33.cd4 c4 34.a4 Qe1 35.Bf1 Ne4 36.d5 f6 37.Bd4= Bc3 38.Bc3?? Nc3 (38...Qf2 39.Kh1 Qf1) 0–1. Kastor,Mark – Samatra,Mario, MI Summer Marathon, 2000. (=1.e4 c5 2.b4 b6 3.Bc4 Bb7)

4.Qe2 e5 5.Nf3+= d6 6.Bb2 cb4= 7.d4 ed4 8.Nd4 Be7 9.Nf5 Bf6= 10.e5 de5 11.0-0 Nd7?? 12.Nd6+- Kf8 13.Nf7 Qe7 14.Nh8 Rc8 15.Rd1 Nh6 16.a3 g5 17.ab4 Bh8 18.Ra7 Rb8 19.Bb5 Ng8 20.Rd7 Qb4 21.Ba3 Qa3 22.Na3 Bd5 23.Qh5 Nf6 24.Rf7! Kg8 25.Qg5 (25.Qg5 Bg7 26.Qg7) 1–0. Fernandez Ballo,Armel (2195) – Tortoza,Carlos (1685), CiF, 2010.

4.Qe2 e5 5.Nf3+= d6 6.Bb2 cb4= 7.d4 ed4 8.Nd4 Be7 9.Nf5 Bf6= 10.Ng7? Kf8-+ 11.Qf3 Kg7 12.Bf6 Qf6 13.Qf6 Nf6 14.f3 d5 (14...d5 15.ed5 Bd5-+) 0–1. Helbing,Ivacir (1935) – Fernandez Ballon,Armel (2195), CiF, 2010.

4.Qe2 Nf6 5.d3 e6 6.bc5 bc5 7.Nd2 Be7 8.Ngf3 0-0 9.e5 Nd5 10.Ne4 f5 11.ef6 Nf6 12.Nf6 Bf6-/+ 13.Rb1 Bf3 14.gf3 Kh8 15.h4 Nc6-+ 16.Be3 Nd4 17.Bd4 Bd4 18.Rb3 Rf5 19.Kd1 Qf6 20.Ba6 Re5 21.Qf1 Qf3 22.Kc1 Qf4 23.Kb1 Rf8 24.Rg1? Bf2 25.Rb7 Re1 26.Qe1 Be1 27.Re1 Rb8 28.Rb8 Qb8 29.Kc1 g5! 30.Re4 gh4 31.Rh4 d5 32.c4 Qg3 0–1. Audisio,Cristobal – Quiroga,F (2335), XV PRO AM Open (1), 2008.

4.Nf3 e6 5.Qe2 Nf6 6.e5 Nd5 7.Bd5 Bd5 8.bc5 bc5 9.Nc3 Bb7 10.Rb1 Qc8 11.0-0 Ba6 12.d3+/- Nc6 13.Ba3 Qc7 14.Nb5 Qa5 15.c4 Bb5 16.cb5+= Nb4 17.Bb4 cb4 18.Nd4 Be7 19.Rb2 0-0 20.Rfb1 Rab8 21.Qe4 Rfc8 22.g3 g6 23.Kg2= Rc3 24.h4 Rbc8 25.Ne2 Rc2 26.Nd4 R2c3 27.Ne2 Ra3 28.Qb7 Rc7 29.Qb8 Kg7 30.Nc1 Rac3 31.Nb3 Qa4 32.d4 Rc8 33.Qb7 R3c7 34.Qf3 Qb5-+ 35.Nc5 Bc5 36.Qf6 Kg8 37.dc5 a5 38.a3 Rc5 39.ab4 Re5 40.ba5 Qc6 41.Kg1 Ra5 42.Rb6 Qc3 43.Qe7 Rd5 44.Rb7 Qc2 45.R1b2?? Rd1 46.Kg2 Qe4 47.f3 Rc2 (47...Rc2 48.Rc2 Qc2 49.Kh3 Rh1 50.Kg4 Qf5) 0–1. Pundt,Wilfried (1930) – Gross,Werner (2270), 10. TCh–Euro sen, 2008.

4.Nf3 Nf6 5.d3 g6 6.bc5+/- bc5 7.Ng5 d5= 8.Bb3 h6=+ 9.Nf3 de4 10.Ne5 c4 11.Ba4 Nbd7 12.Nd7 Nd7 13.Bb2 Qa5 14.Nd2 Qa4-/+ 15.Bh8 ed3 16.Qg4? Qc2-+ 17.Qc4 Qc4 18.Nc4 f6 19.0-0 Kf7-+ 20.Rfd1 Ne5?? 21.Ne5+/- fe5 22.Be5 Bg7? 23.Bg7+- Kg7. Chulivska,V (2235) – Dolzhikova,K (2125), ch–UKR Women (6), 2004.

3.Bc4 Nc6

4.a3 e6 5.Bb2 d5 (5...cb4!? 6.Nf3 ba3 7.Na3 Nf6+=) 6.ed5= ed5 7.Qe2 Nge7 8.Bb5 Bb7 9.bc5 bc5 10.c4 d4 11.Nf3 Qc7 12.0-0 0-0-0 13.d3 Ng6 14.Bc1 Bd6 15.Re1 Nce5 16.Ne5 Be5 17.Qg4 Kb8 18.g3 (better is 18.h3!?=) 18...h5-/+ 19.Qf5 h4 20.Bg5 hg3 21.fg3 Rdf8 22.Re5 Ne5 (22...Qe5?? 23.Bf4 Qf4 24.gf4+-) 23.Bf4 f6 24.Nd2 (24.Ra2 a6 25.Ba4 Ka8-+) 24...g6 (24...Rh2! 25.Kh2 Rh8 26.Kg1 Rh1 27.Kf2 Ra1 28.a4-+) 25.Be5 Qe5 (25...fe5 26.Qg6 Rfg8 27.Qe6-+) 26.Qe5 fe5 27.Rb1 (27.Nb3 a6 28.Nc5 ab5 29.Nd7 Ka7 30.Nf8 Rf8 31.cb5 Rf3-+) 27...Kc7 28.Ba4 a6 29.Nb3 Bc6 (better is 29...Rh2! 30.Kh2 Rh8 31.Kg1 Rh1 32.Kf2 Rb1 33.Nc5 Rb2 34.Kf1 Kd6-+) 30.Bc6-/+ Kc6 31.Na5 Kd7 32.Rb7 Ke6 33.Rb6 Kf5 34.Nb7 Rb8 35.Nd6? (better is 35.a4-/+) 35...Kg4-+ 36.Ra6 (36.Rb8 Rb8 37.Ne4-+) 36...Rb1 37.Kg2 Rb2 38.Kg1 Rbh2 (38...Rbh2 39.Rb6 Rh1 40.Kf2 R8h2) 0–1. Estevez,Eric (1640) – Peray,Sebastien (1860), Provence–ch access Vitrolles, 1996. (=1.e4 c5 2.b4 b6)

4.b5!? Ne5 5.Bd5+=.

4.c3 Nf6 5.Qf3 (5.bc5 Ne4 6.cb6=) 5...d6 (5...Bb7 6.Be2 cb4 7.e5-/+) 6.h3 (better 6.e5 Ne5 7.Qa8 Nc4 8.f4+=) 6...Ne5-/+ (worse 6...cb4 7.e5 de5 8.Bb5+/-) 7.Bb5 (7.Qe2!? Nc4 8.Qc4-/+) 7...Bd7-+ 8.Bd7 Qd7 (8...Kd7?! 9.Qe3 c4 10.d4 Nd3 11.Ke2 Nc1 12.Qc1 Ne4 13.Nf3-/+; 8...Nfd7?! 9.Qe3 c4 10.d4 Nd3 11.Kf1=+; 8...Ned7?! 9.d4=) 9.Qe2 e6 (better 9...c4 10.Na3 Nd3 11.Kf1 d5 12.ed5 Qd5-+) 10.Nf3=+ Be7 11.d3 (11.0-0 0-0=+) 11...0-0 (11...cb4 12.cb4 Qb5 13.Ne5 de5 14.a3=+) 12.a4 (12.bc5 Nf3 13.Qf3 dc5=) 12...Qc6 (better 12...cb4!? 13.cb4 Nf3 14.gf3 d5-/+) 13.b5= Qb7 14.Nbd2 Rfc8 (14...a6 15.Ne5 de5 16.Rb1=) 15.0-0 (better 15.Ne5 de5 16.Nc4=) 15...d5?? (better 15...Nf3 16.Qf3 a6=) 16.Ne5+- Bd6 17.Nc6 a6 18.e5 (better 18.Rb1 Nd7+-) 18...ab5 19.ed6 (19.ef6 Rc6 20.ab5 Ra1 21.bc6 Qc6 22.fg7 Qa4+-) 19...Qc6 20.Bb2 (better 20.ab5 Qb5 21.Ra8 Ra8 22.Nf3+-) 20...ba4= 21.Ba3 Qd6 22.d4 Qc6 23.Nf3 c4 (23...cd4 24.cd4 Qc4 25.Qb2=) 24.Ne5 Qe8 25.Rfb1 Rcb8 26.Rb4 b5 27.Qf3 Ne4 28.Bc1 Qe7?? (28...f6 29.Ng4=+) 29.Rbb1?? (29.Nc6 Qd6 30.Nb8 Qb8+-) 29...f6?? (better 29...Rb7=) 30.Nc6+- Qc7 31.Nb8 Rb8 32.Rb4 Qd7 (32...e5 33.Rab1 Qb6 34.de5 fe5 35.Rb5 Qb5 36.Rb5 Rb5 37.Kh2+-) 33.Qe3 (33.Raa4 e5+-) 33...e5 (33...Ra8+-) 34.de5 fe5 35.Rab1 (35.Raa4! Qc7 36.Ra7 Qc5+-) 35...Qc6 36.f3 (better 36.Ra4 Nf2 37.Qa7+- (37.Kf2?! Rf8 38.Kg1 ba4+/-; 37.Qf2?! Rf8 38.Rc4 Qc4+/-)) 36...Nf6? (better 36...Nc5+-) 37.Qe5 Re8 (37...Nd7 38.Qg5+-) 38.Qf4 (38.Qg3!? Qc5 39.Kh2 Nh5+-) 38...Qc5 39.Qd4 Qd6 (39...Qd4 40.cd4 Re1 41.Kf2+-) 40.Bf4 Qc6 41.Rb5 1-0. raymac – pipesharp, ChessWorld.net, 2021. (=1.e4 c5 2.b4 b6 3.Bc4)

3.Bc4 e6

4.Bb2 Bb7 5.bc5 Be4 6.Qg4 Bf5+=.

4.Bb2 Bb7 5.d3 Nf6 6.Nf3 cb4 7.a3 Nc6 8.0-0 a6 9.ab4 Bb4 10.c3 Be7 11.e5 Nd5 (11...Ng4 12.d4-/+) 12.Bd5+= ed5 13.d4 (13.Ba3 0-0+=) 13...0-0-/+ 14.Ba3 Na5 15.Be7 Qe7 16.Na3 Rac8 17.Qd2? (better is 17.Qc2-/+) 17...Nb3-+ 18.Qb2 Na1 19.Ra1 b5 20.Nc2 d6 21.Nb4 de5 22.Ne5 Qc7 23.Rc1 Rfe8 24.Nbd3 Qd6 25.Qd2 f6 26.Ng4 a5 27.Nf4 Re4 28.g3 b4 29.f3 Rf4! 30.gf4 b3 31.Re1 Ba6 32.f5 Qd7 33.Qg2 Kh8 34.Qb2 a4 35.Ne3 Rb8 36.Ra1 Re8 37.Ng2 Bb5 38.Re1 Re1 39.Ne1 Qe7 40.Kf2 Qe2! 41.Qe2 Be2 (41...Be2 42.Ke2 a3-+) 0–1. Darwisch,Mohamed (1740) – Pasalic,Mehmed (2360), Muensterland op, 2000. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.Bb2 Bb7 5.Qe2 Nf6 6.d3 (6.bc5 Ne4 (6...bc5?! 7.Nc3=) 7.cb6 Qb6-/+ (7...ab6?! 8.Nf3=)) 6...cb4-/+ 7.a3 (7.Nf3 Be7-/+) 7...Nc6 (7...d5 8.ed5 Nd5 9.Qg4-/+) 8.Nf3 Be7 9.h4 (9.0-0 0-0-/+) 9...Qc7 (9...0-0 10.e5 d5 11.Bb5-/+) 10.h5 h6 11.c3 (11.ab4 Bb4 12.Kf1 e5-/+) 11...Na5 (11...ba3 12.Ba3 d6 13.Nfd2-/+) 12.e5 (12.cb4!? Nc4 13.dc4 Be4 14.Bf6 Bf6 15.Qe4-/+) 12...Nc4 13.ef6 (13.dc4 ba3 14.Ba3 Ne4 15.Be7 Ke7-/+) 13...Nb2-+ 14.Qb2 (14.fg7 Rg8 15.Qb2 Bf3 16.gf3 bc3 17.Qc3 Rc8 18.Qc7 Rc7-+) 14...Bf6 (14...Bf3 15.fg7 Qe5 16.Kf1 Qg7 17.gf3 bc3 18.Nc3-+) 15.ab4 Bf3 16.gf3 0-0 17.d4 (17.b5 Rfc8-+) 17...e5 (17...Rfc8 18.Qe2-+) 18.d5 Rfe8 19.Qd2 (19.Qb3 e4 20.fe4 Re4 21.Kd1 Bg5-+) 19...e4 20.f4? (20.Kd1-+) 20...e3! (20...e3 21.fe3 Qf4-+) 0–1. Mishra,Rahul – Tamhankar,Siddhant, Mumbai International Open, 2018. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.Bb2 Qg5 5.Qf3 Bb7 (5...cb4 6.Nh3 Qc5 7.Bb3+=) 6.Nh3 (6.b5 Qg6 7.d3 f5=) 6...Qg6 7.d3 cb4 8.Nd2 Bd6 9.0-0-0 (9.Rb1 Nc6+=) 9...Ne7 10.Nf4 Qg5 11.Nh5 f6 (11...Rg8 12.g4-/+) 12.Nf6+= gf6 13.Bf6 Qg8 14.Qh5 Ng6 15.g3 Be7 16.Bb2 Qf7 17.Bh8 Nh8 18.Qf7 Nf7 19.f4 Nc6 20.Rhf1 Nd4 21.f5 b5 22.fe6 de6 23.Bb3? (better is 23.Nf3 Ne2 24.Kd2-/+) 23...a5-+ (23...Nb3?! 24.Nb3 Rd8 25.Na5-/+) 24.Nf3 Ne2 (better is 24...Nf3!? 25.Rf3 Ng5-+) 25.Kd2-/+ Nc3 26.Ra1 Ng5 27.Nd4 Rd8 28.Ne6 Ne6 29.Be6 Be4?? (better is 29...Ne4 30.Ke3 Bg5 31.Ke2 Nc3 32.Kf2 Bf6-+) 30.Bf7= Kf8 31.Bd5 Ke8 32.de4+/- Ne4 33.Ke3 Nc3?? 34.Bc6+- Rd7 35.Bd7 Kd7 36.Kd3 Kd6 37.a3 Nd5 38.ab4 Nb4 39.Ke4 Nc6 40.Rf5 b4 41.Rh5 Bd8 42.Rd1 Kc7 43.Rh7 Kb6 44.Rh6 Be7 45.Kd5 1–0. Hampe,Volker – Panterodt,Falk, Blankenburger op–B, 2007. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.bc5 bc5 (--> 3.bc5 bc5 4.Bc4 e6).

4.d4 cd4 5.Qd4 Nc6-/+ 6.Qe3 Bb4 7.c3 Bc5 8.Qg3 Qf6 9.Nf3 Qg6 10.Nbd2 Qg3 11.hg3 Nf6 12.e5 Ng4-+ 13.Ne4 Nge5 14.Be2 Nf3 15.Bf3 Be7 16.Bf4 d5 17.Nd6 Bd6 18.Bd6 Ba6 19.0-0-0 0-0-0 20.Ba3 Ne5 21.Rh4 Nf3 22.gf3 Be2 23.Rd2 Bf3 24.Ra4 Kb7 25.g4 Be4 26.f3 Bg6 (26...Bf3?! 27.Rf2 b5 28.Rf4-+) 0–1. Spojda,Robert (1745) – Dobrowolski,Piotr (2390), III MTSz Gora Sw. Anny Poland, 2010.

4.Qe2 cb4 5.Nf3+=.

4.Qe2 Bb7 5.Nf3 Nf6 6.e5 Nd5 7.bc5 bc5 (better is 7...Nf4!? 8.Qf1 Bf3 9.gf3 Nc6-/+ (9...Bc5?! 10.c3=)) 8.0-0+= Nc6 9.Na3 Nf4 10.Qe4 (10.Qe3 Ng6+=) 10...Ng6 11.Rb1 Rb8 12.Qe3 a6 13.c3 (13.Bb2 Be7=) 13...Be7 14.d4 0-0 (14...cd4 15.cd4 d6 16.d5 Nce5 17.Qa7 Nc4 18.Nc4+/-) 15.Nc2 (15.d5 ed5 16.Bd5 Qc7+=) 15...Qa5 16.Bd2 d6 17.Be6 de5 18.Bb3 Qc7 19.d5 c4 20.Bc4 Na5 21.Bd3 ½–½. Tessier Desrosiers,Olivier (2300) – Van Uytven,Eric (2200), Pays de Charleroi op, 2003. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.Qe2 Nc6 5.Nf3 (5.bc5!? Nd4 6.Qd3=) 5...Nb4+= 6.Na3 Be7 7.Bb2 Nf6 8.Rd1 Bb7 9.c3 Nc6 10.Bd3 d6 11.Bb1 e5 (11...0-0 12.0-0-/+) 12.Nc2 (12.d4 Nd7+=) 12...0-0 13.0-0 Na5 14.d3 Qc7 15.Ne3 Rad8 16.Nf5 Bc8 17.N3h4 Bf5 (17...Rfe8 18.Rfe1-/+) 18.Nf5+= g6 (18...Rfe8 19.Bc2+=) 19.Ne7 Qe7 20.f4 ef4 21.Rf4 Nh5 22.Rf2 d5 23.e5 f6 24.g4 Ng7 25.d4 fe5-+ 26.Rf8 Rf8 27.de5 Nc4 28.Rd5? Nb2 29.Qb2 Qe6 30.Qg2+= Qf7 31.Be4 Qf4 32.Qe2 Ne6 33.Rd2= Ng5 34.Bd5 White intends e6 34...Kg7 35.e6 Qd6 36.Kg2 Re8 37.h4 Ne6-/+ 38.Be6 Re6 39.Qf2 Qe7-+ 40.g5 Re4 41.Kh2 Qe5 42.Kg2 Qe6 43.Qf3 h5 44.Rd7 Qd7 45.Qe4 Qd2 46.Kf1 Qc1 47.Ke2 Qb2 48.Kd1 Qa1-+ 49.Kc2 Qa2 50.Kc1 Qf7 51.Qe5 Kh7 52.Qd6 c4 53.Kc2 Kg7 54.Qe5 Kf8 55.Qh8? Ke7-+ 56.Qe5 Kd7 57.Qb5?! Kd6 58.Qb4 Kd5 59.Qb5 Ke4 60.Qc6 Ke3 61.Qf6 Qe8 1–0. Oprea,Erik (2095) – Skreno,Vladimir (2115), SVK–chT1W, 2000. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.Nf3 Bb7 5.bc5 bc5 6.Nc3 Nf6 7.d3 (7.e5 Ne4+=) 7...Nc6 (7...d5 8.Rb1 Bc6 9.ed5 ed5 10.Bb5=) 8.Rb1+= Na5 9.0-0 a6 10.e5 Nd5 (10...Ng4 11.Re1+=) 11.Ne4 (11.Nd5 ed5 12.Rb7 dc4+/-) 11...Be7 (11...Nc4 12.dc4 (worse 12.Rb7 Ncb6=) 12...Nb4 13.Bg5+=) 12.Bg5 f6 13.ef6 (13.Bd2 Nc4 14.Rb7 Nd2 15.Qd2 Qc8+=) 13...gf6 (better 13...Nf6!? 14.Nf6 Bf6=) 14.Ne5 h5 (14...0-0!? 15.Bh6 fe5 16.Qg4 Kf7+/-) 15.Ng6+- Rh7 (15...fg5 16.Bd5 (16.Nh8?! Nf4 17.Bb3 Bc6+/-) 16...Bd5 17.Nh8+-) 16.Ne7 Qe7 (16...fg5 17.Bd5 Bd5 18.Nd5 ed5 19.Nc5 g4+-) 17.Bd5 Bd5 (17...fg5 18.Bb7 Ra7+-) 18.Bf6 (better 18.Nf6 Kf8 19.Qd2+- (worse 19.Nh7 Qh7 20.Qd2 Qf5+-)) 18...Qf8 19.Bc3 Nc6?? (19...Be4 20.de4 Nc6 21.f4+-) 20.f4 (better 20.Nf6 Kd8 21.Nh7+- (21.Nd5?! ed5 22.Qd2 d4 23.Qg5 Kc8+-)) 20...Nd4 21.Bd4 cd4 22.f5! Be4 (22...ef5 23.Ng3 Double attack (23.Ng3 Decoy)) 23.de4 e5 24.f6 Kf7 (24...Qa3 25.Qd3 Qd3 26.cd3+-) 25.Qd3 Qc5 26.Rb7 Rd8 27.Qb3 Kf8 28.Rb8 Rb8 29.Qb8 Kf7 30.Qb3 Kf8 31.Qb8 (31.f7 Qc7+-) 31...Kf7 32.Kh1 (better 32.Rf2+-) 32...h4?? (better 32...Qb5 33.Qb5 ab5+=) 33.Qb3 (better 33.Qd8!? Qd6 34.Rf5 Qb4+-) 33...Kf8 34.f7 h3?? (34...Qd6 35.Qc4 Qb8+-) 35.Qb8 Kg7 (35...Qc8 36.Qc8 Kg7 37.Qg8 Kh6 38.f8Q Kh5 39.Qh7 Kg5 40.Qfg7) 36.f8Q (36.Qg8 Kh6 37.Rf6 Kh5 38.Qg6 Kh4 39.g3) 36...Qf8 37.Qf8 (37.Qf8 Kg6 38.Qf6 Kh5 39.Rf5 Kg4 40.Qg5) 1-0. Grabinsky,V (2215) - Marcziter,D (2240), Titled Tuesday, 2020. (=1.e4 c5 2.b4 b6 3.Bc4)

4.Nf3 Bb7 5.bc5 bc5 6.e5 Ne7 7.Nc3 Ng6= 8.Rb1 Qc8 9.0-0 Nc6 10.Re1 Be7 11.Nb5 0-0 12.Nd6 Bd6 13.ed6 Na5 14.Bb5 a6 15.Ba4 Bd5 16.d4 Nb7 17.dc5 Nc5 18.Bb3 Bc6 19.Bb2 f6 20.Nd4+= Nb3 21.cb3 Bd5 22.Rc1 Qd8 23.Ba3 Qa5=+ 24.Bc5 Rfc8 25.b4+= Qa2 26.Ra1 Qb2 27.Re2+/- Qc3 28.Rc2 Bb3? 29.Rc3+- Bd1 30.Rd1 1–0. Horvath,Il (1775) – Juhasz,Lad (1985), 26th Budapest Spring Festival, Budapest, 2010.

4.Nf3 Bb7 5.Qe2 Nf6 6.d3 d5 (6...cb4 7.Bg5+=) 7.ed5= Nd5 8.bc5 Bc5 9.0-0 Qf6 10.Qe5?? (better is 10.c3=) 10...Qe5-+ 11.Ne5 Bd4 12.Bb5 (12.Bd5 Bd5 (12...ed5?! 13.Re1 Ba1 14.Ng6 Kd7 15.Nh8+=) 13.Nf7 Kf7-+ (13...Ba1?! 14.Nh8 g6 15.c3-/+)) 12...Kf8 13.Ba3 Ne7 (better is 13...Kg8!? 14.c3 Be5 15.d4-+) 14.Nf7 (better is 14.Nd7!? Nd7 15.c3-+) 14...Kf7-+ 15.c3 Bf6 16.d4 Nd5 17.Re1 a6 18.Bc4 b5 19.Bb3 Nc6 20.Nd2 b4 21.Ne4 Be7 (worse is 21...ba3 22.Nd6 Kf8 23.Bd5 ed5 24.Nb7-+) 22.c4 (22.Bb4 Ndb4 (22...Ncb4?! 23.cb4 Nb4 24.Nd6 Bd6 25.Re6 Bh2 26.Kh2-+; 22...Bb4?! 23.cb4 Bc8 24.Nd6 Kf6 25.Bd5 ed5 26.Ne8 Kf7 27.Rac1 Re8 28.Re8-/+) 23.cb4 Nd4-+) 22...Nd4 (worse is 22...ba3 23.cd5 Nd4 24.de6 Kf8 25.Rab1 Nb3 26.Rb3-+) 23.cd5 Nb3 24.de6 Kg6 25.ab3 ba3 26.Nd2 Bd5 27.Re3 Rac8 28.Nf1 Rc6 29.Rg3 Kf6 30.Ne3 Be6 31.Rf3 Kg6 32.Rg3 Kf7 33.Rf3 Bf6 34.Ra3 Rc1 35.Nf1 Bg4 36.Re3 Re8 37.Re8 Ke8 38.Ra6 Kf7 39.Ra2 Re1 40.f3 Bd4 41.Rf2 Bf3! 42.gf3 Re2 (42...Bf2?! 43.Kf2 Rd1 44.Ke2-/+) 0–1. Wu,Edward (1795) – Bodwin,Greg, California State–ch, 2006. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

4.Nf3 d6 5.b5 Bb7 6.d3 Qc7 7.Qe2 Nd7 8.0-0 Be7 9.c3 Ngf6 10.Ng5 d5 11.ed5 Bd5 12.Bd5 Nd5 13.d4 Bg5 14.Bg5 0-0 15.c4 N5f6 16.Rd1 cd4 17.Rd4 Rac8 18.Nd2 Rfe8 19.Rd1 h6 20.Be3 Nc5 21.Qf3 Qe7 22.Nb3 e5 23.Rd6 Nce4 24.c5 bc5 25.Ra6 Ng5 26.Qf5 Red8 27.Re1 Nge4 28.Na5 Nd6 29.Qb1 Rd7? 30.Nc6+/- Qe8 31.Bc5 Nde4 32.Ba7 Rb7 33.f3 Nc3 34.Qd3 Nb5 35.Re5 Qd7 36.Qd7 Nd7 37.Rb5! Rc6 38.Rb7 Ra6 39.Rd7 Ra2 40.Bd4 Rd2 41.h4 Ra2 42.h5 Ra4 43.Kf2 Kf8 44.Bc5 Ke8 45.Re7 (45.Re7 Kd8 46.Rf7 Ra2 47.Kg3+-) 1–0. Savoia,S – Menon,C (1770), 16th HIT Open, 2011. (=1.e4 c5 2.b4 b6 3.Bc4 e6)

3.bc5 bc5

4.Ba3 e5 5.Bc4 Bb7 6.Qh5 Qf6 (6...Qe7!? 7.Nc3 Nf6=) 7.Nc3+= g6 8.Qe2 Nc6 9.Nd5 Qd8 10.Qf3 Nh6? (better is 10...f6+=) 11.Nf6+- Ke7 12.Ng4 (12.Bc5!? d6 13.Be3 Nd4 14.Bd4 ed4+-) 12...f5 13.ef5 (13.Bc5?! d6 14.Rb1 Rb8 15.Nh6 Bh6+=) 13...Nf5 (13...Ng4 14.Qg4 Kf6 15.fg6 hg6 16.Rb1+-) 14.Qd5 Qc7?? (better is 14...Qe8 15.Bc5 d6+-) 15.Qf7 Kd8 16.Qf6 Kc8 17.Qh8 Qd8 18.Nf3 (better is 18.Bd5 Ncd4 19.Bb7 Kb7 20.Rb1 Ka6+-) 18...d5 (18...Bg7 19.Qd8 Nd8+-) 19.Bd5! Qd5 20.Qf8 Kc7 21.Qc5 Qe4 (21...Qc5 22.Bc5 Ncd4 23.Nd4 Nd4 24.0-0+-) 22.Ne3 Re8 23.d3 Qa4 24.0-0 Nfd4 (24...Qa5 25.Rfe1+-) 25.Nd5 Kc8 26.Nd4 (26.Nd4 ed4 27.Rab1+-) 1–0. Pluschkat,GR (2000) – De Castro,CC, Fortaleza BRA, 2nd Open, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb2 Qb6 5.Qc1 Bb7 6.Nc3 Nf6 7.d3 g6 8.Nf3 d6 9.Rb1 Bg7 10.Ba1 Qa5?? (better is 10...Qc7+=) 11.Rb7+- Ne4 12.de4 Bc3 13.Bc3 Qc3 14.Nd2 0-0 15.Bd3 Nc6 16.0-0 Nb4 (16...Rab8 17.Rc7 Rfc8 18.Rc8 Rc8 19.Nc4+-) 17.Nc4 d5 18.ed5 Nd5 19.Qg5 Rfd8 20.Rb3 Qg7 21.Rfb1 h6 22.Qc1 (better is 22.Qg3!?+-) 22...Nc3 23.R1b2 Na4 24.Rb1 Nc3 25.R1b2 Na4 26.Rb1 ½–½. Tanner,M – Nixon,Peter, Detroit ch–MI opB, 1992. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb2 Bb7 5.Nc3 Nc6 6.Rb1 e6 7.Nf3 a6 8.Be2 (8.Bd3 Rb8+=) 8...Qc7 (8...Rb8 9.Bd3+=) 9.0-0 (9.Na4 h5+=) 9...Nd4 10.d3 (10.Re1 Rb8=) 10...Ne7 (10...Rb8 11.Bc1=) 11.Na4 (11.Nd4 cd4 12.Na4 Bc6+=) 11...Ne2 (11...Nec6 12.Ba3 d6 13.c3 Ne2 14.Qe2+=) 12.Qe2 Ng6 13.Rfd1 (13.Bc3!?+=) 13...Bc6= 14.Nc3 Be7 15.d4 cd4 16.Nd4 0-0 17.h3 (17.Bc1 Bb7=) 17...Bb7 (17...Rfb8 18.Nc6 Qc6 19.Ba1=+) 18.Qg4 (18.Bc1 Rab8 19.Rb3 f6=) 18...Bd6 (18...Rab8 19.Nce2-/+) 19.Kh1 (19.Qe2 Rab8=+) 19...f5 (19...Rab8 20.a4-/+) 20.Qe2 (20.ef5 ef5 21.Qg5 Rab8-/+) 20...Be5 (20...Be7 21.Nd5 ed5 22.ef5-+) 21.Ba1 (21.Qe3 Bf4 22.Qe1 Rab8-/+) 21...fe4 22.Ne4 Bd5 23.Nf3 (better 23.a3!?-/+) 23...Ba1-+ (23...Ba2 24.Ne5 Ne5 25.Nd6+=) 24.Ra1 Nf4 25.Qe3 Qc2 26.Ned2 (26.Nfd2 Nd3-+) 26...Qg6 (26...Rac8 27.Rdc1 Qg6 28.Rg1-+) 27.Rg1 Qh5 (better 27...d6-+) 28.Ne4?? (28.Kh2-+) 28...Nh3! 29.Ng3 (29.gh3 Qf3 Double attack (29...Rf3 Discovered attack; 29...Rf3 Deflection; 29...Qf5 Decoy; 29...Rf3 Overloading)) 29...Nf2 0–1. Prabhugaonkar Aditee Aman – Gomes,Mary Ann (2390), 11th Indian Championship Women, 2013. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb2 Bb7 5.Nc3 g6 6.Na4 Bg7?? (better 6...e5+=) 7.Bg7+- Be4 (7...Nf6 8.Bh8 Ne4 9.f3+-) 8.Nc5 Bc6 9.Bh8 Nf6 10.Bf6 ef6 11.Qg4 a5 12.0-0-0 d6 13.Re1 Kf8 14.Qd4 d5 (14...Kg8 15.Ne4 Be4 16.Qe4+-) 15.Re6! Kg8 (15...fe6 16.Ne6 Double attack) 16.Qf6 Qf6 17.Rf6 1-0. marekt - delightful_porridge, ChessWorld.net, 2022. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb2 d6 5.Bc4 e6 6.d3 Nc6 7.Nd2 Nf6 8.f4 Be7 9.Ngf3 a6 10.a4 d5 11.Bb3 Na5 12.0-0 Qc7 (12...Nb3 13.Nb3 de4 14.Bf6 Bf6 15.de4 Ba1 16.Qa1+=) 13.Ne5 (13.ed5 Nb3 14.Be5 Qd8 15.Nb3 Nd5=) 13...Bb7 14.f5 (14.ed5!? ed5 15.Ng4=) 14...Bd6 15.Ndf3? (better is 15.Nef3 Nb3 16.cb3-/+) 15...c4-+ (15...de4?! 16.de4 Nb3 17.cb3 Be4 18.fe6 fe6 19.Nc4+=; 15...Nb3?! 16.cb3 de4 17.de4 Be4 18.fe6 fe6 19.Nc4+=) 16.fe6 fe6 (16...cb3?! 17.ef7 Kf8 18.cb3 de4 19.de4 Ne4 20.Nd4+=; 16...Nb3 17.ef7 Kf8 18.cb3+=) 17.dc4 (17.Bc4 dc4 18.Qe1 Rc8-+) 17...de4 (17...Ne4?! 18.cd5 ed5 19.Rb1=; 17...Nb3?! 18.cb3 de4 19.Qe2-+) 18.Nd4 Be5 19.Ne6 Bh2?? (19...Qd7 20.Ng7 Qg7 21.Be5 e3+= (21...Nb3 22.Bf6 0-0 23.Bg7 Rf1 24.Kf1 Kg7 25.Qd7 Kg6 26.cb3 Rf8 27.Ke2+-)) 20.Kh1+- Qg3 21.Bf6?? (better is 21.Ng7 Qg7 22.Rf6+-) 21...gf6+= 22.Qh5 Ke7 23.Nd4 Bc8 0–1. Lopez,Daniel1 (1690) – Maldonado,Hernan (1815), Manizales op, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb2 d6 5.f4 Bb7 6.Nc3 Nf6 7.d3 Nc6 8.Nf3 g6 9.g3 Bg7 10.Bg2 Qa5 11.Qd2 0-0 12.0-0 Rfc8 13.f5 Nd4 14.fg6 hg6 15.Ng5 c4 16.Rac1? (better is 16.Rab1=) 16...Qb6-+ 17.Na4?? (better is 17.Rf2 Qb2 18.Rb1-+) 17...Nf3 18.Kh1 Nd2 19.Nb6 ab6 20.Bc3 (20.Rfd1 Ra2 21.Bd4 Bh6-+) 20...Ra2 (better is 20...Nf1 21.Bf1 cd3 22.cd3 Ra2 23.Bh3-+) 21.Bd2 cd3 22.Be3 Rcc2 (worse is 22...Rac2 23.Rb1-+) 23.Rc2 dc2 24.Bb6 (24.h4 b5 25.Bd2 Bh6-+) 24...Nd7 (better is 24...Ng4 25.Nf7 Ra1 26.Nh6 Kh7 27.Ng4 Rf1 28.Bf1-+) 25.Be3 Ra1 26.Bc1 Bh6 27.Bh3 f6 28.Bd7 Bg5 29.Be6 Kg7 30.Bg5 Rf1 31.Kg2 fg5 32.Kf1 c1Q (32...c1Q 33.Ke2 Ba6 34.Bc4 Bc4 35.Kf3 Qd1 36.Ke3 Qe2 37.Kd4 Qd3) 0–1. Hung,Daniel – Bethke,Richard (1635), Al–Ain UAE, World Ch Boys U08, 2013. (=1.e4 c5 2.b4 b6 3.bc5+= bc5)

4.Bb2 d6 5.f4 Nd7 6.Nc3 Ngf6 7.Bb5 Rb8 8.Rb1 Qa5 (8...a6 9.Ba4=) 9.Ba4 Bb7 10.d3 (10.Ba1 e6=) 10...Bc6 (better is 10...Be4!? 11.de4 Rb2+=) 11.Bc6+= Rb2 12.Nge2 Rb6 13.Ba4 d5 14.0-0 (better is 14.Bd7 Kd7 15.0-0=) 14...de4?? (better is 14...d4 15.Rb6 ab6 16.Bd7 Nd7+=) 15.de4+- Rd6?? (better is 15...Rb4 16.e5 Ra4 17.Na4 Qa4 18.ef6 gf6+-) 16.Rb8 Qd8 17.Rd8 Kd8 18.Qb1 Nb6 (18...Rb6 19.Qc1 e5+-) 19.e5 Rd2 20.ef6 ef6 21.Rd1 Rd1 22.Qd1 Kc7 (22...Kc8+-) 23.Nd5 Kb7 24.Nb6 ab6 (24...Rg8 25.Qd7 Ka6 26.Nc4 Bd6 27.Bb5) 25.Qd7 (25.Qd7 Ka6 26.Bb5 Ka5 27.Bc4 Kb4 28.Qb5 Ka3 29.Qb3) 1–0. Anderson,George – Dharssi,Karim, Kent Oliver Memorial, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bb5 e6 5.Nf3 Qc7 6.0-0 Nf6 7.d3 (7.e5 a6 8.Be2 Ng4+=) 7...Be7 (7...a6 8.Ba4 Bb7+=) 8.c4 (8.e5 a6 9.Ba4 Nd5+=) 8...0-0 (8...a6 9.Ba4 0-0 10.e5=) 9.Nc3 (9.e5 Ne8=) 9...Ne8 (9...a6 10.Ba4=) 10.Ba4 (10.Re1 a6 11.Ba4 d6+=) 10...f5 (10...a6 11.Re1+=) 11.e5 Bb7 (11...a6 12.Rb1+=) 12.Re1 (12.Rb1 a6+=) 12...Nc6 13.Nb5 (13.Rb1 Rb8+=) 13...Qc8= 14.Rb1 a6 15.Nc3 d6 (15...Rb8 16.Bf4+=) 16.ed6 Bd6 (16...Bf6 17.Bd2 Nd6 18.Bc6 Bc6 19.Na4=) 17.d4 (17.Ng5 Be5 18.Bd2 Rf6+-) 17...cd4+= 18.Nd4 Attacks the backward pawn on e6 18...Nd8 (18...Nd4 19.Qd4 Rb8 20.Be8+-) 19.Be8+- Re8 20.Nf5 Qc6 21.Nd5 (21.Ne3 Rf8+-) 21...Bf8 (21...ef5!? 22.Rb6 Re1 23.Qe1 Qa4 (23...Qc4?? 24.Qe8 Bf8 25.Ne7 Kh8 26.Qf8 Qg8 27.Qg8) 24.Rd6 Bd5 25.cd5 f4+-) 22.Nd4+- Qc5 (22...Qc4 23.Nb6 Qa2 24.Bf4+-) 23.Nb6 (23.Qa4 Nf7 24.Rb7 Qd4+-) 23...Ra7 24.Be3 Qc7 25.Qg4 (25.Nf3 Bc6+-) 25...Qf7 (25...Bd6 26.h3+-) 26.Na4 (26.Red1 h5 27.Qg3 Be4+-) 26...h5 (26...Ra8 27.Rb3+-) 27.Qg3 (27.Qf4 Qg6 28.Nf3 Be4+-) 27...Ra8 (27...Be4 28.Rbc1+-) 28.Nb6 Ra7 29.Nb3 (29.f3 Nc6+-) 29...Be4 30.Rbd1 Nc6 (30...Bc2 31.Rc1 Bb4 32.Bd2 (32.Rc2?! Be1 33.a3 Nc6+=) 32...Bd2 33.Nd2+-) 31.Nc5 (31.Na4 Raa8 32.Nac5 Bf5+-) 31...Bf5 32.Nbd7 Nb4? (better 32...Be7+-) 33.Ne5 (better 33.Nf8 Rf8 34.Ne6 Be6 35.Ba7 Na2+-) 33...Qc7 (33...Qe7 34.Ncd7 h4 35.Qf4+-) 34.Rd7 Qb8 35.Ra7 h4 36.Qg5 (worse 36.Qh4 Qa7 37.Qh5 Qa8 38.Qf7 Kh8+-) 36...Qe5 (36...Qa7 37.Ncd7 Be7 38.Qf5 (38.Ba7?! Bg5 39.Bc5 Nd3 40.Nd3 Bd3+-) 38...ef5 39.Ba7 Na2 40.Nc6+-) 37.Nd7 (37.Qh5 Rd8 38.Qf7 Kh8+-) 37...Qb2 (37...Qc3 38.Bd2 Qd4 39.Nf8+-) 38.Nf8 Rf8 39.Rb7 Rc8 (39...Be4 40.Rd7 Qf6 41.Qf6 gf6 42.Bd2+-) 40.a3 Qc3 41.Bd2 (41.Bd2 Qf6 42.Rb4+-) 1–0. Djosic,Slavoljub (2295) – Nestorovic,Lazar (2400), 1. League Central–SRB, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.c3 Bb7 5.Qc2 d5 6.Bb5 Nd7 7.Nf3 de4 (7...e6 8.d3 a6 9.Bd7 Qd7 10.Ne5+=) 8.Ne5 Ngf6 9.Qb3 Bd5?? (9...e6 10.Bd7 Nd7 11.Nf7=) 10.c4 (better 10.Nd7 Nd7 11.Qd5+-) 10...Be6=+ 11.Ba3 Qc7 12.Qg3 Qd6 13.Nc3 0-0-0 (better 13...a6!? 14.Ba4 0-0-0=+) 14.Nc6+= Qg3 15.hg3 Re8 16.Na7 Kb7 17.Nc6 Ra8 18.Bb2 Bc4 19.Bc4 Kc6 20.Bf7? (better 20.Bb5 Kc7 21.g4=) 20...Ne5-+ 21.Bb3 Nd3 22.Ke2 Nb2 23.Rhb1 (23.Bc2 g6-+) 23...Nd3 24.Ba4 (24.a4 Nb4-+) 24...Kd6 (24...Kc7 25.f3-+) 25.Rb6 Ke5 26.f3 (26.Bb3 g5-+) 26...Nb4 (26...c4 27.Rc6 Nh5 28.f4 Kf5 29.Rc4 Ng3 30.Ke3 Nf4 31.Kf2-+) 27.f4 Kf5 28.Bb3 (28.a3 Nbd5 29.Nd5 Ra4 30.Ne3 Kg6-+) 28...Ra6 (better 28...Kg4 29.Kf2 Nd3 30.Ke3 e5 31.Ne4 ef4 32.gf4 Nf4 33.Nf2 Kg5-+) 29.Be6 Kg6 30.f5 (30.Ra6 Na6 31.Nd5-+) 30...Kg5 31.Rb5? (31.Ra6 Na6 32.Ke3-+) 31...Nc2 32.Rab1 (32.Rc1 Nd4 33.Ke1 Rc6-+ (worse 33...Ne6 34.fe6 Re6 35.Rc5 Kg4 36.Nd1 Kg3 37.R1c3 e3 38.Re3 Re3 39.Ne3-+)) 32...Nd4 33.Ke3 Nb5 34.Rb5 g6 35.Rc5 Bg7 (35...gf5 36.Rf5 Kg6 37.Re5 Bh6 38.Ke2-+) 36.fg6 (36.Ne4 Ne4 37.Ke4 Kg4-+) 36...Kg6 37.Bf5 Kf7 38.Ne4 Ne4 (better 38...Bh6!? 39.Kf3 Ra3 40.Ke2 Ra2 41.Rc6-+) 39.Be4 Rd8 40.Kf4 (40.Rc2 Ra3 41.d3 Bd4 42.Kf4 h6-+) 40...Bh6 (40...Rd2 41.Ke3 Bh6 42.Kf3 Ra3 43.Kg4-+) 41.Kf3 Rf6 (41...Rf6 42.Kg4 Rd2-+; worse 41...Ra2 42.Bd5 Rd5 43.Rd5 Rd2 44.Rf5 Kg6 45.Re5-+) 0–1. Huchon,Jean – Lecoq,Eric, Belgian championship, Open, 1992. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.c3 Bb7 5.Qc2 e5 6.Nf3 (6.Bc4 Qg5 7.g3=) 6...d6 (6...Nf6 A) worse 7.Ne5 Qe7-/+ (7...Ne4?! 8.d4=); B) 7.d3 Nc6 8.Na3=) 7.Bb5 (7.Bc4 Qe7+=) 7...Nd7 8.d4 (better 8.d3!?+=) 8...cd4=+ 9.cd4 Rc8 (9...Qa5 10.Nc3 Be4 11.Qe4 Qc3 12.Ke2=) 10.Qb2 (10.Nc3 f5 11.Qb3 A) 11...Be4? 12.Qe6 Be7 13.Ng5+- (13.Ne4?! fe4 14.Ng5 Nh6 15.Ne4 Nf7+-); B) 11...Qc7+=) 10...ed4 (10...Be4!? 11.Nbd2 Bf3 12.Nf3 e4-/+) 11.0-0 Ngf6 (11...Be4 12.Re1 f5 13.Nd4+=) 12.Re1 Be7 13.e5 (better 13.Nbd2!?+=) 13...de5=+ 14.Ne5 0-0 Black launches an attack 15.Nd7 Nd7 16.Nd2 (16.Qd4 Bf6 17.Qd7 Qd7 18.Bd7 Rc7=+) 16...Nb6 (16...Nc5 17.Bc4-/+) 17.Ne4 (17.Rb1 Rc3-/+) 17...Qd5-+ 18.f3 f5 (18...d3 19.Rd1 f5 20.Bg5-+) 19.Nf2-/+ Bf6 20.Bd3 Nc4 21.Qb3 (21.Bc4 Rc4 22.Rb1 Ba6-/+) 21...Ne3-+ 22.Rb1 Qb3 23.Rb3 Bd5 24.Ra3 Rc7 (24...Nc2 25.Bc2 Rc2 26.Ra7 Ba2 27.Ba3-+) 25.h3 (25.Nh3 Nc2 26.Bc2 Rc2-+) 25...f4 26.Ng4 (26.Ra5-+) 26...Bh4 27.Nf2 (27.Ne3 Be1 28.Nd5 Rc1-+) 27...Rfc8 (better 27...Nc2!? 28.Bf4 Rf4 29.Rc1 Na3 30.Rc7-+) 28.Bd2 Bg3 (28...Rb8 29.Rc1 Re7 30.Be4 Bf2 31.Kf2-+) 29.Rb1 Bc4 (29...Bf2 30.Kf2 g5 31.Rb4-+) 30.Be4 (30.Ne4 Bd3 31.Rd3 Nf5-/+) 30...Be2 (30...Bf7 31.Ra4-+) 31.Bd3 (31.Bb7 Nc4 32.Bc8 Rc8-+ (32...Na3?? 33.Be6 Kf8 34.Bb4 Ke8 35.Ba3+-; 32...Nd2?! 33.Be6 Kf8 34.Rb8 Ke7 35.Rc8=+)) 31...Nc4 (31...Rc3 32.Bc3 Bf2 33.Kf2 Bd3 34.Rb8 Rb8 35.Bd4-+) 32.Bc4 Rc4 33.Ne4 Rc2 34.Ra7 Bd3 35.Ng3 fg3 (35...Rd2!? 36.Rbb7 fg3 37.Rg7 Kh8 38.Rg3 Bf5-+) 36.Bf4-/+ Re2 37.Rd1 Rcc2 Do you see the mate threat? 38.Bg3 Rg2 39.Kh1 Rg3 40.Rd3 Rh3 41.Kg1 Rg3 42.Kf1 Rh3 (42...h5 43.Rd4 Rf3 44.Kg1 Rg3 45.Kh1-+) 43.Kg1 Rg3 (43...h5 44.a4-/+) 44.Kf1 Rc3 (44...h5!?-/+) 45.Rd4=+ Threatening mate: Rd8 45...Rgf3 46.Kg2 h6 47.a4 Ra3 48.Rg4 (48.a5 Rf5 49.a6 Rg5 50.Kh2 Rg6-+) 48...Rf7 (48...g5 49.a5-/+) 49.Ra8=+ Kh7 50.Re4 Rb7 51.Re2 (51.Re5!?-/+) 51...Rb4-+ 52.a5 Rba4 (better 52...Rb5-+) 53.Re5=+ Rb4 (53...Ra2 54.Kf3 g5=+) 54.Kf2 (54.Re2 Rb5-+) 54...Rf4 (54...Rb2 55.Kf1-+) 55.Ke2 (55.Kg2!?=+) 55...Rh4-/+ 56.Kf2 Rh2 57.Kg1 Rb2 Do you see the mate threat? 58.Rf8 Ra1 59.Rf1 Raa2 The mate threat is Rg2 60.Rfe1 (60.Rd1 Kg6-/+) 60...Rg2 (60...g5 61.Re7 Kg6 62.R7e6 Kf5 63.a6-/+) 61.Kh1 Rg6 (61...Rh2 62.Kg1-/+) 62.Rg1 (62.R1e2 Re2 63.Re2 Ra6-/+) 62...Rg1 63.Kg1 Kg6 64.Rb5 Kf6 65.Rb6 (65.Rh5 g6 66.Rh6 Ra5-/+) 65...Kg5 66.Rb5 (66.Rb7 Kh4 67.Rg7 Ra5-/+) 66...Kh4 67.Rb4 Kh5 68.Rb5 g5 69.Kf1 Kh4 70.Rb6 Ra5 (70...h5!? 71.a6-+) 71.Rh6 Kg3 72.Rg6 g4 73.Ke2 (73.Rg8 Ra1 74.Ke2 Rg1-+) 73...Re5 (better 73...Rf5!? 74.Ke3-+) 74.Kf1 Re4 75.Rf6 Re3 76.Rd6 Rf3 77.Kg1 Rf2?? (better 77...Rc3 78.Rd1 Kh3-+) 78.Rd3= Rf3 Threatening mate... how? 79.Rd2 (79.Rd6 Rc3 80.Rd1-+) 79...Ra3 Threatening mate... how? 80.Rg2 Kf4 81.Rf2 Rf3 (better 81...Ke4!?-/+) 82.Kg2= Ke3 83.Ra2 Rf5 (83...Rf4 84.Kg3 Rd4 85.Ra7=) 84.Kg3 ½–½. Danielsson,S (1790) – Haile,Batel Goitom, Reykjavik Open, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.c3 Bb7 5.d4 Be4=+ 6.d5 Nf6-/+ 7.c4 d6 8.Nc3=+ Nbd7 9.Nge2 Qa5 10.Bd2 Ne5 11.Nf4 Qa6 12.h4 Bf5 13.h5 Rb8 14.f3 g5 15.hg6=+ fg6 16.g4 Bd7 17.g5 Nh5 18.Rh5?? gh5-+ 19.Ne6 Be6 20.de6 Bg7 21.f4 Ng4 22.Bd3 0-0 23.Qe2 Qb7=+ 24.Nd5 Qb2 25.Ne7 Kh8 26.Qe4?? Qa1-+ 27.Ke2 Qd1! 28.Kd1 Nf2 29.Ke1? Ne4 30.Be4 Rbe8 31.f5 Re7 32.f6 Rf6! 33.gf6 Bf6 34.Bf5 Kg7 35.Bf4 Re8 36.Bd6-/+ Be7 37.Be5 Kh6 38.Ke2 h4 39.Kd3 Rd8 40.Ke4 Rd1 41.Bg4 Re1 42.Kd5 Kg5 43.Bf3 Re3 44.Be4 h5 45.a4 h3 46.a5 Re2 47.Bf3 h2 48.a6 Rf2 49.Be4 Re2 50.Bf3 h4 51.Bb8 Re3 52.Bh1 Re1 (52...Re1 53.Bf3 h1Q 54.Bh1 Rh1 55.Ba7 Ra1 56.Bc5 Ra5-+) 0–1. Mordiglia,Riccardo (2015) – Accardo,Francesco, Formia op, 1995.

4.c3 Bb7 5.e5 e6 6.Nf3 Qc7 7.d4 cd4 8.cd4 Bf3 9.gf3 Nc6 10.Be3 Bb4 11.Nd2 Nge7 12.Bd3 0-0 13.a3 Bd2 14.Qd2 f5 15.Rc1 Nd5 16.f4 Qb6 17.Bc4 Nce7 18.0-0 Rab8 19.Rb1 Qb1-/+ 20.Rb1 Rb1 21.Kg2 Rc8 22.Qd3 Rb2 23.Kg3 Nb6 24.Bb3 Nbd5 25.Bd2?? Rc3!! (25...Rc3 26.Bc3 Rb3-+) 0–1. Molzbichler,A – Landa,Konstantin (2570), Velden op (4), 1996.

4.c3 d6 5.d4 cd4 6.cd4 Nf6 7.Nc3 e6 8.Bd3 Be7 9.Nf3 Bb7 10.0-0 Nbd7 11.Rb1 Qc7 12.Ba3?? (12.Bf4 e5 13.Bg5 0-0+/-) 12...a6?? (better 12...Qc3 13.Rb7 Qa3-+) 13.Qb3 Rb8 14.Qc2 0-0 15.e5! Bf3 (15...de5 16.Be7 Pinning (16.Be7 Deflection)) 16.gf3 Nh5 (16...Ne8 17.Bh7 (17.Ba6?! Ra8 18.Qd3 Ra6 19.Qa6 Qc3=) 17...Kh8 18.Be4+/-) 17.Bh7 (better 17.Nd5! Qd8 18.Bh7 Kh8 19.Rb8 Nb8 20.Ne7 Qe7 21.Bd6 Qg5 22.Kh1+-) 17...Kh8+= 18.Ne2 (better 18.Na4 Qd8 19.ed6+/- (19.Bd6? Bd6 20.ed6 g6-+)) 18...Qc2?? (better 18...Qa5 19.ed6 Bf6 (19...Qa3?! 20.de7 Qe7 21.Be4=) 20.Rb8 Rb8-/+) 19.Bc2+- Rb1 20.Bb1 Re8 21.ed6 Bf6 (21...Bg5 22.Be4+-) 22.Be4 Rd8 23.Bb4 Nb6 (23...Bg5+-) 24.Rc1 g6 25.Ba5 (25.Rc6 Rb8+-) 25...Rb8? (better 25...Rd6 26.Bb4 Rd8+/-) 26.Rb1+- Bd8 27.Bb6 (better 27.Bd3!?+-) 27...Rb6 28.Rb6 Bb6 29.Kf1 Nf6 30.Ke1 (30.a3 Kg7+/-) 30...Kg8 (30...Ba5 31.Kd1 Bb4 32.Bb7+=) 31.Kd2 (31.Bb7 Kf8+/-) 31...Kf8 (31...Ba5 32.Ke3 Bb4 33.Bb7+=) 32.Kc3 (32.Bb7 a5+=) 32...Ke8 (better 32...Ne8!?+=) 33.Kc4 Kd7 34.a4 (34.Bb7!?+/-) 34...Ne8 35.Kb4 Nd6 36.a5 Bd8 37.h4 (37.d5 ed5 38.Bd5 Be7+=) 37...Ne4 (37...Be7 38.Ka4=+) 38.fe4 Bf6 (38...Bh4 39.Ng3=) 39.Kc5 Bh4 40.Kb6 Bf2 41.Ka6 Bd4?? (better 41...Kc6-/+) 42.Nd4+- Kc7 (42...e5 43.Ne6! Ke6 44.Kb6+-) 43.Ne2 (better 43.Ka7 g5 44.a6+-) 43...Kb8 (43...e5+-) 44.Kb5 (better 44.Kb6 Kc8+-) 44...Ka7 45.a6 1-0. Mukhina,Jana (2065) - Vilhete,V (1795), Djerba Women Online, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.c3 e6 5.d4 cd4 6.cd4 Nf6 7.Bd3 Bb4 8.Bd2+= Qb6 9.Ne2 Bb7 10.Qa4 Nc6 11.0-0 Bd2 12.Nd2 Qb4 13.Qd1 Qa5 14.e5 Nb4? 15.Nc4 Qd5 16.Nd6 Ke7 17.Nb7 Nd3 18.Qd3 Qb7 19.ef6 gf6 20.Rab1 Qc7 21.Rfc1 Qa5 22.Nc3 Rhg8 23.d5 Qc5 24.Rb5 Qa3 25.Re1 Rac8 26.Rb3 Qd6 27.Nb5 Qf4 28.d6 Kf8 29.g3 Qh6 30.Na7 Ra8 31.Rb7 Rg5 32.Rd7 Rd5 33.Qf3 Rb8 34.Nc6 Rf5 35.Qe3 Qe3 36.Re3 Rb2 37.Rd8 Kg7 38.Rg8! Kg8 39.Ne7 Kg7 40.Nf5 ef5 41.Rd3 Rb8 42.d7 Rd8 43.a4 Kf8 44.a5 Ke7 45.a6 h6 46.a7 f4 47.Kg2 f5 48.Kf3 fg3 49.Kg3 h5 50.Kf4 f6 51.Kf5 h4 52.h3 Kf7 53.Kg4 Ke7 54.Kh4 f5 55.Kg5 Rg8 56.Kf4 Rd8 57.h4 Ke6 58.h5 Kf7 59.a8Q Ra8 60.d8Q Ra4 61.Rd4 (61.Rd4 Rd4 62.Qd4 Ke7 63.Ke5 Kf7 64.Qd7 Kg8 65.Kf6 Kh8 66.Qg7; 61.Kf5 Ra5 62.Qa5 Kg7 63.Qe5 Kh7 64.Rd7 Kh6 65.Qh8) 1–0. Abrahams,Timm – Plewka,Manfred, Schleswig Holstein–ch (4), 1994.

4.c3 e6 5.d4 d5 6.ed5 ed5 7.Ba3 (7.dc5 Bc5 8.Bb5 Kf8+=) 7...Qc7 (7...cd4 8.Bf8 Kf8 9.cd4 Qa5 10.Qd2 Qd2 11.Nd2=) 8.Bb5 (8.dc5 Nf6=) 8...Bd7 9.Qe2 (9.Bd7 Nd7 10.Nf3 cd4 11.Qd4 Ngf6=) 9...Kd8 10.Nf3 f6 (10...Bb5 11.Qb5 Nd7 12.0-0=) 11.0-0 (11.dc5 Bb5 12.Qb5 Nc6+-) 11...a6 (11...Bb5 12.Qb5 Nd7 13.Re1+-) 12.Bd7 Nd7 13.Re1 Be7 (13...Ne7 14.dc5 Ne5 15.Ne5 fe5 16.Qe5 Qe5 17.Re5+-) 14.dc5 Nc5 15.Nd4 Kd7?? (15...Ke8+-) 16.Bc5 (better 16.Qg4 f5 17.Qg7+-) 16...Bc5 (16...Qc5 17.Qg4 f5 18.Qf5 Ke8 19.Qh5 g6+-) 17.Qe6 Kd8 18.Qe8 1–0. Krustev,Goran (2055) – Sisoev,Robert, 7th Sofia Bulgaria, Hemus Open, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.c3 Nf6 5.e5 Nd5 6.d4 cd4 7.cd4 Nc6 8.Nf3 d6 9.Bc4 de5 10.de5 e6 11.0-0 Be7 12.Qa4 Bb7 13.Bb5 Rc8 (13...Qb6 14.Ba3 0-0 15.Be7 Nce7 16.Rc1=) 14.Bc6 (14.Qa7! Qd7 15.Qa4+/-) 14...Bc6= (worse 14...Rc6 15.Nd4 (15.Qa7?! Qc8 16.Qa4 0-0=) 15...Qc7 16.Nc6 Bc6 17.Qd4+/-) 15.Qa7 (15.Qg4 Bf8=) 15...0-0 (15...Bb5 16.Ba3 Bf1 17.Qa4 Qd7 18.Qd7 Kd7 19.Kf1-/+) 16.Nbd2 (better 16.Ba3=) 16...Bb5-/+ 17.Re1?? (better 17.Qd4 Bf1 18.Nf1-/+) 17...Bc5-+ 18.Qb7 Rb8 19.Qb8 Qb8 20.Ne4 Bb4 21.Bd2 Bd2 22.Nfd2 (22.Ned2 Nc3-+) 22...Bd3 (22...Qe5 23.a4 Bc6 24.Nf3-+) 23.a4 (23.Nc5 Nf4 24.Ndb3 Rc8-+) 23...Qa7 (23...Qe5 24.Nc5 Qc3 25.Nd3 Qd2 26.Ne5-+) 24.Nd6 (24.a5 Ra8-+) 24...Rb8 25.a5 Rb2 26.N2e4 Be4 27.Re4 (27.Ne4 f5 28.ef6 gf6 29.Rf1-+) 27…Qf2 (27...Qf2 28.Kh1 Qg2) 0-1. Joly,F (1955) - Ernst,Luca (1660), ch-FRA Blitz Online Qual, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nc3 a6 5.Rb1 Qc7 6.Nd5+/- Qd8 7.Nb6 Ra7 8.Na4 Nc6+= 9.Nc5 e6 10.Nb3+/- Nf6 11.Bb2 Ne4= 12.Bd3 Nf6 13.Nf3+= Be7 14.0-0 0-0 15.Nbd4 Bb7 16.Nc6 Bc6 17.Bd4 Ra8 18.Ne5 Bd5 19.c4+= Be4 20.Be4 Ne4 21.Rb7 Nf6 22.Qa4+/- Qc8 23.Rfb1 Rd8 24.Qa5 Bd6 25.c5 Be5 26.Be5+/- Nd5 27.Rb8+- Rb8 28.Rb8 Qb8 29.Bb8 Rb8 30.h3 h6 31.Qa6 Rb1 32.Kh2 Rb2 33.Qc8 Kh7 34.Qd7 Kg6 35.c6 Ra2 36.c7 Nc7 37.Qc7 Rd2 38.Qf4 Rd5 39.g4 Rg5 40.h4 Rd5 41.h5 (41.h5 Kh7 42.Qf7+-) 1–0. Blazkova,Petra (2235) – Mudongo,Boikhutso (1960), 1st WCh–Team Women (5), 2007.

4.Nc3 a6 5.Bc4 e6 6.Nf3 Nc6 7.0-0 Be7 8.Bb3 d6 9.Re1 Qc7 10.Qe2 Bf6 11.Rb1 Nge7 12.Bb2 Nd4 13.Nd4 Bd4 14.Na4 Bb2 15.Nb2 0-0 16.Nc4 Bd7 17.Ne3 Nc6 18.c3 Ne5 19.Bc2 Nc6 20.f4 Ne7 21.Qg4 Rab8 22.h4 (22.e5 Rb1 23.Rb1 f5 24.ed6 Qd6= (24...fg4 25.dc7 Rf4 26.Rb8 Bc8 27.Bb3+-)) 22...Rb1 23.Bb1 Rb8 24.h5 Rb2 (24...e5!? 25.Qg5 f6=) 25.h6= Ng6 26.f5 ef5 27.ef5 (worse is 27.Nf5 c4+= (worse is 27...Rd2 28.Ne7 Kh8 29.Ng6 hg6 30.Qf4+/-)) 27...gh6 28.Qg3+/- Rd2? 29.fg6+- fg6 30.Bg6! Kh8 31.Bf7 Qd8 32.Nc4 Bc6 33.Nd2 (33.Nd2 Qg5 34.Qf2+-) 1–0. Lopez Heras,Arturo (1940) – Garcia Lopez,Pedro (1850), Madrid–ch Veterans, 2009. (=1.e4 c5 2.b4 b6 3.bc5+= bc5)

4.Nc3 a6 5.Bc4 e6 6.Nf3 d6 7.0-0 h6 8.d4 Qa5 9.Ne2 (9.Bd2 cd4 10.Nb5 Qb6 11.Nbd4 Nc6+=) 9...Be7 10.d5 e5 11.Ne5 (11.Qd3 Nf6+/-) 11...de5 12.d6 Bd8 (12...Bf6 13.Bf7 Kf7 14.Qd5 Be6 15.Qa8 Nd7+/-) 13.f4 (13.Rb1 Qa4 14.Bd5+-) 13...Bf6?? (better 13...Be6 14.Be6 fe6=) 14.Qd5 (14.fe5!? Qb4 15.Qd5 Ra7 16.ef6 Be6 17.fg7 Rh7+-) 14...Ra7+/- 15.Rb1 (15.fe5 Be6 16.Qd1 Be5 17.Be6 Ba1=+) 15...Qd8?? (better 15...Nd7 16.Bd2 Qa4+-) 16.Rb8 Rd7 (16...Qd7 17.Qc5 Ne7 18.fe5 Nc6 19.ef6 gf6 20.Rf6 Rh7+-) 17.Qc6 Ne7 18.de7 Be7 19.Rc8 0-0 20.Rd8 Rdd8 21.fe5 Rc8 22.Bf7! Kh8 (22...Rf7 23.Qe6 Double attack (23.Qc8 Deflection; 23.Qe6 Decoy; 23.Qc8 Overloading)) 23.Qg6 a5 24.Bh6! (24.Bh6 Rg8 25.Qh5 Rc6 26.Be6 g6 27.Bg7 Kg7 28.Rf7) 1-0. marekt - Tony _ R, ChessWorld.net, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

4.Nc3 e5 5.Bc4 Nf6 6.Nf3 d6? 7.Ng5+- Be7?? (better 7...Be6 8.Ne6 fe6 9.Be6 Nc6+-) 8.Nf7 (8.Nf7 d5 9.Bd5 Nd5 10.Nd8+-; 8.Bf7?! Kf8+-) 1–0. Bazza3 – delightful_porridge, ChessWorld.net, 2019. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Bc4 Qb6 5.Nc3 Nc6 6.Rb1 Qa5 7.Rb5 Qc7 8.Rb1 (8.Rc5 e5 9.Rb5 Ba6 10.Re5 Qe5 11.Ba6 Qe6+=) 8...Nf6 (8...Qa5!?=) 9.Nf3+= e6 10.0-0 a6 11.Bb2 Bd6 12.Re1 Ne5 13.Nd5 Nd5 (13...ed5 14.ed5 Combination) 14.Bd5 (14.Ne5 Nb6 15.Qh5 0-0+=) 14...Rb8 (14...Nf3 15.Qf3 Bh2 (15...ed5? 16.Bg7 Bh2 17.Kf1+-) 16.Kh1 Rb8+/-) 15.Be5+= Be5 16.Ne5 Qe5 17.c3 0-0 (17...ed5?? 18.ed5 0-0 19.Re5+-) 18.Bb3 Bb7 19.d4 Qg5 20.Re3 d6 21.Rg3 Qf4 22.Rg4 Qf6 23.Qd2 h5 24.Rf4 Qg5 25.Qe3 c4 26.Bc2 Bc6 27.h4 Rb1 28.Bb1 Qb5 29.Bc2 Qb2 30.d5 Bd7 (better is 30...e5 31.Rf3 Bd7-/+) 31.de6+= Be6 32.Bd1 Qb1 33.Qd2 Rd8 (33...Rb8 34.Kh2 (34.Qd6? Rb7-+) 34...Qd3 35.Qd3 cd3 36.Rf3-/+) 34.Kh2 Qd3 35.Qc1 d5 36.e5 d4 37.cd4 Rd4 38.Be2 (worse is 38.Bh5 Rf4 39.Qf4 c3-/+) 38...Qd2 39.Qd2 Rd2 40.Bc4 Bc4 41.Rc4 Ra2 ½–½. Procacci,Sergio (2015) – Singher,Jean_Pierre (1960), Montreal CAN, Pere Noel, 2013. (=1.e4 c5 2.b4 b6 3.bc5+= bc5)

4.Bc4 d6?? 5.Bb2 Nf6 6.d3 e6 7.Ne2 (7.Nf3 Nc6=) 7...Be7 8.0-0 0-0 9.Nd2 Bb7 10.Rb1 Ba6 (10...Qc7 11.f4=) 11.Ba6 (11.Nf4 Bc4 12.Nc4 Nc6+=) 11...Na6+= 12.Ng3 Rb8 13.f4 (13.Nc4 g6+=) 13...Nb4= 14.a3 Nc6 15.Nf3 Qc7 16.Qd2 Rb7 17.Ba1 (17.Bf6 Rb1 18.Rb1 Bf6=) 17...Rfb8=+ 18.Rb7 Rb7 19.Ne2 (19.e5 Nd7=+) 19...Nd7 20.d4 (20.f5!?=) 20...cd4 21.Ned4 Nc5 (21...Nd4 22.Qd4 e5 23.fe5 de5 24.Qd3-/+ (24.Ne5?? Bc5 25.Nf7 Bd4 26.Bd4 Qc2-+)) 22.Re1=+ Bf6 23.e5 de5 24.Nc6 Qc6 25.Be5 (25.Ne5 Qa4=) 25...Be7=+ 26.Qc3 Bf8 27.Rd1 Rd7 (27...f6 28.Bd4=+) 28.Rd7 Qd7 29.Qd4 (29.Bd4 Qd5=) 29...Qc6 (29...Qb5 30.Qb4 Qa6 31.Bd4=+) 30.Qc4 (30.Bg7 Bg7 31.Qd8 Bf8 32.Qg5 Kh8 33.Qf6 Kg8 34.Qg5 Bg7 35.Qd8 Bf8 36.Qg5=) 30...Qb6 31.Bd4 (31.g3!?=) 31...Qb1-/+ 32.Kf2 Ne4 33.Ke3 Nd6 34.Qc3? (34.Qd3 Qc1 35.Kf2 Qf4-/+) 34...Nb5 (34...Qf1 35.Bc5 Qc1 36.Kd3 Qf4 37.Bd6 Qd6 38.Ke3-+) 35.Qb2 (better 35.Qd2-/+) 35...Qb2?? (better 35...Qf1 36.Nd2 Qg1 37.Kd3 Nd4 (37...Qd4?! 38.Qd4 Nd4 39.Kd4-/+) 38.Qd4 Qg2 39.Qa7 Ba3-+) 36.Bb2= Ba3 37.Ba3 Na3 38.Kd3 Kf8 (38...Nb5 39.c4 Nc7 40.Kd4=) 39.Nd4 (39.c4 Ke7+-) 39...Ke8 (39...a5 40.c4+=) 40.c4+= Kd7 41.Kc3 Nb1 (better 41...f6!?+=) 42.Kc2+- Na3 43.Kb3 Nb1 (43...Nc4 44.Kc4 f6 45.Kc5+-) 44.Nf3+- Kc6 45.Kb2 Kc5 46.Kb1 Kc4 (better 46...f6!? 47.Nd2 a5+-) 47.Ne5+- Kd4 48.Nf7 h6 49.g3 Ke3?! (49...Ke4 50.Kb2+-) 50.Nd8 Kf3 (50...g5 51.Ne6 gf4 52.Nf4+-) 51.Ne6 g6 52.Nd4 Kg2 (52...Ke4 53.Nc6 Kf5+-) 53.g4 Kh2 54.f5 gf5 55.gf5 h5 56.f6 h4 57.Nf3 Kg3 58.Nh4! Kh4 59.f7 (59.f7 a5 60.f8Q a4 61.Qh6 Kg4 62.Qg6 Kf4 63.Qa6 Ke5 64.Qa4 Kd5 65.Qh4 Kc5 66.Qh5 Kd6 67.Qh6 Kd5 68.Qh1 Ke6 69.Qc6 Kf5 70.Qf3 Ke6 71.Qe3 Kf6 72.Qf4 Ke6 73.Kc2 Kd7 74.Qf7 Kd6 75.Qg6 Ke7 76.Qg7 Kd6 77.Qf6 Kd7 78.Qf5 Kc6 79.Kc3 Kd6 80.Qg6 Kc7 81.Qg3 Kd7 82.Qg7 Kc6 83.Qg8 Kd6 84.Qc4 Ke5 85.Qe2 Kf6 86.Qf1 Kg5 87.Qh3 Kf4 88.Qh4 Kf5 89.Kd4 Ke6 90.Qh6 Kd7 91.Kd5 Kc7 92.Qc6 Kd8 93.Qb7 Ke8 94.Ke6 Kd8 95.Qd7) 1–0. UncleBulgaria (2385) – Nitzerama (1915), ChessWorld.net, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 d6)

4.Bc4 d6?? 5.Bd5+- e6 (5...Bg4 6.Qg4 Nf6 7.Qe2 Nd5 8.ed5+-) 6.Ba8 Ba6 7.Na3 Qc8 8.c4 Nf6 (8...Nd7 9.Qa4 Kd8 10.Rb1+-) 9.Qa4 Nfd7 10.e5! Bb7 (10...de5 11.Nf3 Decoy) 11.Bb7 Qb7 12.Rb1 Qg2 13.Rb8 Ke7 14.ed6 Kf6 15.Qd7 Qh1 16.Kf1 Qh2 17.Rf8! Rf8 (17...Rf8 18.Qe7 Double attack (18.Qe7 Decoy)) 18.Qe7 Kg6 19.Qf8 Qh5 20.Nc2 Qd1 21.Ne1 Qc1 22.d7 Qc4 23.d3 (23.d3 Qf4 24.d8Q+-) 1–0. Krastev,G (2010) – Kolev,Vel (1940), 2nd MGU Open, Sofia BUL, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.d3 d6 5.g3 Nf6 6.Bg2 Nc6?? (6...e5 7.f4=) 7.f4?? (better is 7.e5 d5 8.ef6 ef6 9.c4+-) 7...e6 8.Nf3 Bb7 9.0-0 Be7 10.c3 Qc7 11.Na3 0-0 12.h3 Rad8 13.Nb5 Qb6 14.a4 (14.Rb1 c4 15.Rf2 Rd7=) 14...a6+= 15.Na3 Qc7 16.Be3 Rfe8 17.Rb1 Ba8 18.Qe2 d5 19.e5 Nd7 20.g4 c4 21.Nc2 cd3 22.Qd3 Nc5 23.Qe2 Ne4 24.Qa6= Nc3 25.Rb3 Ne4 26.Ncd4 Nd4 27.Bd4+= Qc2 28.Rb2= Qc4 29.Qc4 dc4 30.a5 Ng3 31.Rfb1?? Bf3-+ 32.Bf3 Rd4 33.Kg2 c3 34.Rc2 Rd2?? 35.Rd2+= cd2 36.Kg3 Rd8 37.a6 Bc5 38.Bd1 Ba7 39.Rb7+/- Bg1 40.Kg2 Be3 41.a7 Ba7 42.Ra7 h6 43.Ra2 Rd3 44.f5 Kh7 45.fe6 fe6 46.Bc2?? d1Q+/- 47.Bd1 Rd1 48.Re2 Kg6 49.Kg3 Kg5 50.h4+= Kg6 51.Re3 Kh7 52.Kf4 g6 53.g5 Rd4 54.Re4+= Re4?? 55.Ke4+- h5 56.Kd4 Kg7 57.Kc5 Kf7 58.Kd6 Kf8 59.Ke6 Ke8 60.Kf6 Kf8 61.e6 Ke8 62.Kg6 Ke7 63.Kf5 Ke8 64.Kf6 Kf8 65.Kg6 Ke7+- 66.Kh5 Ke6 67.Kh6 Kf7 68.Kh7 Kf8 69.g6 Ke7 70.g7 Kd6 71.g8Q Kc5 72.Kg6 Kd6 73.h5 Kc6 74.h6 Kd6 75.h7 Ke7 76.Qf7 Kd6 77.h8Q Kc5 78.Qhe8 Kd6 79.Qfd7 Kc5 80.Qec8 (80.Qec8 Kb4 81.Qdb7 Ka4 82.Qca8; 80.Qb5 Kd4 81.Qee5) 1–0. Kuehn,Timo (1960) – Diaz,Samuel, Canarias en Red prel 3rd blitz, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.d3 e6 5.f4 Nc6 6.Nf3 Nf6 (6...d5 7.Be2=) 7.Be2 Be7 8.c3 Bb7 9.0-0 0-0 10.Na3 Na5 11.Nc2 c4 12.e5 cd3 13.Bd3 Ne4 14.Be4 Be4 15.Ncd4 Nc6 (15...Rc8 16.Re1 Bg6 17.f5 ef5 18.Qd3+=) 16.Re1 Bd5 17.Be3 Nd4 18.cd4 d6 19.Qd2 a5 20.Rec1 de5 21.de5 Bf3 22.gf3 Qd2 23.Bd2 Rfd8 24.Be3 Rd3 25.Kf2 h5 26.Ke2 Rd7 27.Rd1 Rb7 28.Rab1 Rab8 29.Rb7 Rb7 30.Kd3 Kh7 31.Rd2 Bb4 32.Rc2 Rd7 33.Kc4 f6 34.Bd4 Kg6 35.Kd3 Kf5 36.Ke3 Be7 37.ef6 gf6 38.a4 Bd6 39.Ke2 Bf4 40.Bg1 Rd5 41.h3 Kg5 42.Bf2 e5 43.h4 Kf5 44.Rc5 Rc5 45.Bc5 Bg3 46.Bb6 Bh4 47.Ba5 Ke6 48.Bb6 Kd7 49.a5 Kc6 50.Bd8 Kb5 51.Kf1 Bg5 52.Kg2 Ka6 53.Kh3 Kb7 54.Be7 Kc7 55.Kg2 Kd7 56.a6 Kc7 57.a7 Kb7 58.Bc5 f5 59.Kh3 e4 60.fe4= fe4 61.Kg3 ½–½. Pedros Viudes,Enrique – Martinez Sanchez,Pedro J, Valencia–B, 1994. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.d4 Qb6 5.d5 d6 6.c4 Nf6 7.Nc3 e6 8.f4 Be7 9.e5 Nfd7 10.de6 fe6 11.Qg4 Nf8?? 12.Qg7+- Ng6 13.Bd3 Qd8?? 14.Bg6 hg6 15.Qh8 Kd7 16.Qd8 Kd8 17.Nf3 Bb7 18.0-0 Nd7 19.ed6 Bd6 20.Be3 Ke7 21.Nb5 Be4 22.Nd6 Kd6 23.Rfd1 Ke7 24.Rac1 Rb8 25.Ne5 Ne5 26.Bc5 Kf7 27.fe5 Rb2 28.Bf2 Ra2 29.c5 Ra6 30.Ra1 Rc6 31.Ra7 Ke8 32.Ra8 Ke7 33.Bh4 g5 34.Bg5 Kf7 35.Be3 Rc7 36.Rad8 Bd5 37.Rf1 Kg7 38.Rff8 Be4 39.Rg8 Kf7 40.Rdf8 Ke7 41.Rg7 Kf8+- 42.Rc7 Ke8 43.h4 Kd8 44.Ra7 Kc8 45.h5 Bb7 46.Rb7! Kb7 47.h6 Kc6 48.h7 Kd7 49.h8Q Ke7 50.g4 Kd7 51.Qg7 Kd8 52.Qf7 Kc8 53.g5 Kd8 54.g6 Kc8 55.g7 Kd8 56.g8R (56.g8Q) 1–0. Mablouke,Ulrich (1780) – Chan_Faye,Yoann, Saint Denis FRA, 2011.

4.d4 Qc7 5.Nf3 cd4= 6.Nd4 Nf6 =. amayfer (1820) – burrango (1970), net–chess.com, 2009.

4.d4 cd4 5.Qd4 Nc6 6.Qd1 (6.Qa4 g6 7.Nd2 Rb8+=) 6...Nf6 (6...e6 7.Nf3+=) 7.Nc3 e6 8.a3 (8.Bd3 Rb8-/+) 8...a6 (better is 8...Bc5!?-/+) 9.Nf3+= Bc5 10.Bg5? (better is 10.Be2+=) 10...Qa5-+ 11.Bd2 (11.Bf6 gf6 12.Qd2 Bb4 13.ab4 Qa1 14.Nd1 Qb1-+) 11...Qb6 (11...Ng4!? 12.Qe2 Bf2 13.Kd1-+) 12.Qe2 Ng4 13.Nd1 0-0 14.h3 Nge5 15.Ne5 Ne5 16.Qh5 (16.f4 Nc6-+) 16...f5 17.Be2 (17.f4 Nf7 18.Nc3 Bd4-+) 17...Bb7 18.0-0 Be4 19.Nc3 Bc2 20.Rac1 (20.Ra2 Bb3 21.Rb2 Ba3-+) 20...Qb3 21.Bd1 Bd1 22.Rfd1? Ba3 23.Rb1 Qc4 24.Qg5 Nf7 25.Qg3 Bd6 26.f4 Rab8 27.Rbc1 Rb3 28.Kh1 Ba3 29.Rc2 Nd6 30.Be3 Rc3 31.Qg5 Ne4 32.Rc3 Qc3 33.Bd4 Qd4 34.Rd4 Ng5 35.fg5 d6 36.Ra4 Bc5 37.Ra6 Rb8 38.h4 Kf7 39.h5 h6 40.g6 Kf6 41.Rc6 Ke5 (41...Ke5 42.Kh2 Kf4-+) 0–1. Al_Khulaifi,Ghada (1645) – Yurenok,Maria (2055), 40th Women Olympiad, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.d4 e6 6.Nf3 d5 7.ed5 Qd5 8.cd4 Nf6 9.Be2 Bb4 10.Bd2 Bd2 11.Nbd2 (worse 11.Kd2 Qa5 12.Kc1 0-0-/+) 11...Nc6 12.0-0 0-0 13.Rc1 (13.Bc4 Qd6=) 13...Nd4=+ 14.Nd4 Qd4 15.Rc4 Qd6 16.Rh4 (16.Bf3 Ba6 17.Ba8 Bc4 18.Nc4 Qd1 19.Rd1 Ra8-/+) 16...h6 (16...Rd8 17.Nc4 Qd1 18.Rd1 Rd1 19.Bd1-/+) 17.Bf3 (17.Nc4 Qc5=+) 17...Rb8 18.Nc4 Qe7 19.Qd6 (19.Re1 Rd8 20.Rd4 Bb7 21.Bb7 Rd4 22.Qd4 Rb7-/+) 19...Qd6 20.Nd6 Rd8 21.Nc8 Rbc8 22.h3 Rc2 23.Ra4 Rd7 24.a3 g6 25.Rb1 e5 (25...Nd5 26.Rd4-/+) 26.Re1 (better 26.Rb7!?=) 26...Re7 27.Ra5 e4 28.Bd1 Rc1 29.Kf1 Kg7 30.Bb3 Rc3 31.Ba4? (31.Rb5 Rd7-/+) 31...Nh5 (better 31...Ra3 32.Re3 Rd3-+) 32.Bc6?? (better 32.Bb5-+) 32...e3 (32...Rc6!? 33.Ra4 f5 34.g3-+) 33.Be4?? (better 33.Bf3 Nf4 34.fe3-/+) 33...Re4-+ 34.f3 (34.Re3 Ng3! 35.Ke1 Rce3 36.fe3 Re7-+) 34...e2! 35.Re2 (35.Kf2 Ree3 36.Re2 Ra3-+) 35...Ng3 36.Kf2 Re2 37.Kg3 Rcc2 38.Kh2 (38.Ra7 g5 39.Kg4-+) 38...Rg2 39.Kh1 h5 (39...h5 40.Rc5 Ra2-+; 39...Rge2 40.Rg5 hg5 41.h4 Re1) 0-1. elgranlucas (2320) - opperwezen (2780), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 a6 5.Nc3 Nc6 6.Bc4 e6 7.0-0 d6 8.d4 cd4 9.Nd4 Bd7 10.Be3 (10.Nc6 Qc7 11.Na5 Qa5+=) 10...g6 (10...Ne5!? 11.Be2 Qc7=) 11.Nc6+/- Bc6 12.Bd4 Nf6 13.Qe2 (13.Qd3 Bg7+/-) 13...Bg7 (13...e5 14.Be3+=) 14.Rad1 (14.Ba6 e5 15.Bb5 Bb5 16.Qb5 Qd7+/-) 14...0-0+= 15.e5 de5 16.Bc5 Nd5 (16...Qa5!? 17.Bf8 Bf8+=) 17.Bd5 ed5 (17...Bd5 18.Bf8 Kf8 19.Nd5 ed5 20.Qf3+/-) 18.Bf8 Kf8 19.Nd5! Kg8 (19...Bd5 20.c4 Passed pawn) 20.c4 Qh4 21.Qe3 Kh8 (21...Ba4 22.Rd2+-) 22.Qc5 Ba4 23.Rb1 Bc2 24.Rb7 Rf8 (24...Bd3 25.Rd1 Be2 26.Re1+-) 25.Rc7 (25.Qd6 h6 26.Qa6 Bd3+-) 25...Bf5 26.Ne3 Be6 27.Qe7 (27.Rd1 h6+-) 27...Qe4 (27...Qe7 28.Re7 Rc8 29.Rc1+-) 28.h3 h5 29.Rd1 (29.Qd6 Kh7+-) 29...Qa8? (better is 29...Rb8+-) 30.Rd6 Re8 31.Ra6! Qb8 32.Qc5 Qb1 33.Kh2 e4 34.Re6! fe6 35.Qa7?? Be5-+ 36.g3 Bc7 37.Qc7 Rf8 38.Qe5 Kh7 39.Qc7 Kh6 40.Qc5?? Rf2 41.Ng2 Rg2 42.Kg2= Qa2 43.Kg1 ½–½. Sikiric,Halid (1815) – Korjenic,E (2040), 42nd Bosna Open B, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 e6 5.Ba3 Nf6 6.e5 Nd5 7.c4 Nf4 8.g3 Ng6 9.Bg2 Bb7 10.Bb2 Be7 11.0-0 Nc6 12.d4 cd4 13.Nd4 0-0 14.Nb5 Qb6 15.N1c3 (15.Qd7 Rfd8 16.Qc7 Qa6 17.Bc6 Bc6-+ (17...Qc6?! 18.Qc6 Bc6 19.Re1=)) 15...Rab8 (worse is 15...Nge5 16.Na4 Qa6 17.Nc7 Qc4 18.Rc1 Qa2 19.Be5 Ne5 20.Bb7+=) 16.Na4 Qd8 17.Nd6 Ba8 18.Re1 f6 19.ef6 Bf6 20.Bf6 Qf6 21.Ne4 Qd4 Exerts pressure on the backward pawn 22.Qd4 Nd4 23.Rad1 e5 24.Nac5 Bc6 25.a4 Rb2 26.Nd3 Re2 27.Re2+= Ne2 28.Kf1 Be4 29.Be4 Nc3 30.Bd5 Nd5 31.cd5 d6 32.Ke2 a5 33.Ke3 Ne7 34.Nb2 Nf5 35.Ke4 Nd4 36.f4+/- Ne2 37.Kd3 Rb8? 38.Ke2?? Rb2= 39.Rd2 Rb4 40.fe5 Re4 41.Kd3 Re5 42.Kc4 Kf7 43.Kb5 Re3 44.Ka5 Rb3 45.Rd4 g5 46.Rb4 Rd3 47.Kb6 Rd5 48.a5 Rd2 49.a6 Rh2 50.a7 Ra2 51.Kb7 Ke6 52.a8Q Ra8 53.Ka8 d5 54.Rb1 Kf5 55.Kb7 Kg4 56.Rb3 h5 57.Kc6 h4 58.gh4 Kh4?? 59.Kd5 g4 60.Ke4 g3 61.Kf3 Kh3 62.Kf4 (62.Kf4 Kg2 63.Rg3 Kf2 64.Re3 Kg2 65.Re2 Kf1 66.Kf3 Kg1 67.Re1 Kh2 68.Rd1 Kh3 69.Rh1) 1–0. Mose,Greg – Cooper,W, East Lansing–ch MI op–B, 1991. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 e6 5.Bc4 d6 6.0-0 Be7 7.c3 Nf6= 8.Re1 0-0 9.d4 Ne4 10.d5?? Nf6= 11.de6 fe6 12.Be6 Be6 13.Re6 d5 14.Bg5 Nbd7 15.Nbd2 Re8 16.Qe2 Nf8 17.Re1 Ne4? 18.Be7 Qd7? 19.Re4+- de4 20.Qe4 Ng6 21.Qc4 Kh8 22.Bg5 Rf8? 23.Qc5 h6 24.Be3 Rf5 25.Qd4 Qd4 26.Bd4 Ra5 27.h4 Rb8 28.Nc4 Ra2 29.Re4 Rf8 30.Nce5 Ne5 31.Ne5 Kh7 32.h5 Re8 33.Rf4 Ra5 34.Nf3 Re7 35.g4 g6 36.Rf8 gh5 37.Nh4 Rg7 38.Bg7 Kg7 39.Rf4 Rg5 40.f3 hg4 41.Rg4 Kf6 42.Rg5 Kg5 43.Ng2 a5 44.Ne3 Kf4 45.Kf2 a4 46.Nc2 h5 47.c4 Ke5 48.Kg3 Kd6 49.f4 Ke6 50.Kh4 Kf5 51.c5 (51.c5 Ke6 52.Nd4 Ke7 53.Nb5+-) 1–0. Faccia,S (2000) – Bonafede,A (2145), Autumn Open Venice ITA (2), 2005.

4.Nf3 e6 5.Bd3 Nf6 (5...Nc6 6.Na3=) 6.0-0 (6.e5 Nd5=) 6...Be7 (6...d6 7.Nc3=) 7.Nc3 (7.e5 Ng8+=) 7...Ba6 8.Bb2 (8.Ba6 Na6 9.d3 h5=) 8...Bd3 9.cd3 Nc6 10.a3 0-0 11.Re1 h6 12.Rb1 Rb8 13.Qa4 Qa5 14.d4 (14.Qa5!? has some apparent merit 14...Na5 15.Ne2=) 14...Qa4-/+ 15.Na4 cd4 16.e5 Nd5 17.Nd4 Nd4 (better is 17...Nf4!? 18.Nc6 dc6-/+) 18.Bd4= Ba3 19.Nc5? (19.Ba7 Rb4 20.Nc3 Nf4=) 19...Nb6 (better is 19...Rb4 20.Rb4 Bb4-/+) 20.Rb6?? (better is 20.Ra1 the rescuing straw 20...Bc5 21.Bc5+=) 20...ab6-+ 21.Nd7 Rb7?? 22.Nf8= Bf8 23.Rb1 b5 24.Kf1 Rd7 25.Be3 Rd5 26.f4 Bc5 27.Ke2 g5? 28.g3 Kg7 29.Kf3 Kg6 ½–½. Aufmwasser,Guenter – Wolffram,Gert (1815), Bad Woerishofen Seniors op, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 Nf6 5.Nc3 Nc6 6.Bc4 d6 7.0-0 e6 8.d3 Be7 9.Rb1 0-0 10.h3 a6 11.a4 (11.Bf4 Bd7+=) 11...Bd7 12.Bd2 (12.Be3 Qc7=) 12...Qc7= 13.Qc1 Nd4 14.Nd4 (better 14.Qd1!?=) 14...cd4-/+ 15.Ne2 Ne4! 16.Nd4 (16.de4 Qc6 Double attack (16...Qc4 Deflection; 16...Qc6 Decoy; 16...Qc4 Overloading)) 16...Nd2 (16...Ba4 17.Ne6 (worse 17.de4 Qc4 18.Rb4 Qa2=) 17...fe6 18.Be6 Kh8 19.de4 Qc2 20.Rb7+-) 17.Qd2 Bf6 18.Ne2 (18.Qe3 d5 19.Bb3 Rab8-/+) 18...Ba4 19.Rb4 (19.c3!?-/+) 19...Bc6-+ 20.Bb3 (20.Ng3 d5 21.Ba2 Be5-+) 20...Qa5 (20...a5!? 21.Rg4 a4 22.Ba2-+) 21.c3 (21.Qe1 d5-+) 21...Rab8 22.d4 Rb4 (22...Bg5 23.f4 Bf6 24.Rc1-+) 23.cb4 Qa3 (23...Qb6!? 24.d5 Bd7 25.Ng3-+) 24.Qc3-/+ Bb5?? (better 24...Ba4 25.Ba4 Qa4-/+) 25.Ra1+= Qa1 26.Qa1 Be2 27.Qc3 (27.Qa2!? Bb5 28.d5 ed5 29.Bd5+-) 27...Bb5 28.f4 g6 29.g4 Bd7 30.Qd3 Rc8 (30...d5 31.Qa6 Bd4 32.Kg2+-) 31.Bc4 (31.Qa6!? d5 32.Qa7+-) 31...Rb8+= 32.Qd2 (worse 32.Ba6 Rb4 33.d5 Rd4=+) 32...Bb5 33.Bb5 Rb5 34.g5 (34.Kg2 Be7=) 34...Bg7 35.Qc3 Bf8 (35...Rb8 36.Qc7 Bd4 37.Kg2 Rb4 38.Qd6=+) 36.Qc6 (36.Qa3 d5 37.Qa6 Rb4=) 36...Rb4=+ 37.Qa6 (better 37.d5!?=+) 37...Rd4-+ 38.Qf1 (38.f5 gf5 39.Qa7 Rh4-+) 38...d5 39.Kg2 h5 (39...Bd6 40.f5 gf5 41.Qf2-+) 40.Qc1 (40.Qf2 Re4-+) 40...Rc4-+ 41.Qd2 Bb4 42.Qe3 Rc2 43.Kf3 0–1. Bartolozzi,Roberto (1935) – Both,Bert (2185), 7th Terre Degli Elimi, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 Nf6 5.Bc4 Bb7 6.d3 d5 7.ed5 Bd5 8.Bd5 Nd5 9.0-0 e6 10.Bb2 Nf6 11.Nbd2 Be7 12.Ne5 0-0 13.Qf3 Qd5 14.Qg3 Nbd7 15.Nd7 Qd7 16.Ne4 Kh8 (16...Ne8 17.Be5+=) 17.Rae1 (17.Nf6 Bf6 18.Bf6 gf6+=) 17...Qa4+= 18.Nf6 Bf6 19.Bf6 gf6 20.Qf3 Qd4 (20...f5 21.Qe3 Rg8 22.Re2+= (22.Qc5?? Rg2 23.Kh1 Rh2 24.Kh2 Qh4 25.Kg2 Qg4 26.Kh2 Qh5 27.Kg3 f4 28.Kf4 Qc5-+)) 21.Re4+/- Qc3 22.Rc4 Qe5 23.Qe3 Exerts pressure on the isolated pawn 23...Rac8 (23...Rfc8 24.Qe5 fe5 25.Re1+=) 24.Qe5+/- fe5 25.Re1 Rfd8 26.Re5 Rd5 27.f4 Kg7 28.Kf2 Rd4 29.Re4 (29.Rec5?! Rc5 30.Rc5 Rf4 31.Ke3 Ra4=) 29...Rc4 (29...Rd5 30.Rc3+/-) 30.Rc4+- (30.dc4?! Rb8+=) 30...Rc6 31.d4 Kf6 32.dc5 Ke7 33.Ke3 1–0. Kondou,Eva (2260) – Hadzinikola,Eleni (2080), GRE–ch (Women), 1995. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 Nf6 5.Bc4 e6 6.Qe2 Be7 7.e5 Nd5 8.Bd5 ed5 9.Nc3 Bb7 10.Rb1 Qc8 11.d4 0-0 12.0-0 Na6 13.Nb5 Nc7 14.Bg5 Nb5 15.Be7 (worse is 15.Qb5 Ba6 16.Qb3 Bc4 (16...Bf1?! 17.Be7 Bc4 18.Qa3=) 17.Be7 Bb3 18.cb3 c4 19.Bf8 Kf8-/+) 15...Nc3 16.Qd3 Ne4 17.dc5 (better is 17.Qa3!? Re8 18.Bc5+/-) 17...Re8+= 18.Bd6 Ba6 19.Qd5 Nd6 20.ed6 Bf1 21.Ng5 (21.Rf1!? Re6 22.Nd4+/-) 21...Bg2 22.Qf7 Kh8 23.Qf5 Be4 24.Ne4 Rf8 25.Qd5 Qe8 26.Rb3 Rf4 ½–½. Endres,Gerald – Bossert,Christian (2245), BL2–Sued, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.Nf3 Nf6 5.d3 g6 6.Be3 Bg7 7.Nbd2 Qa5 8.Be2 d5 9.0-0 Qc7 10.c4 de4 11.Ne4 Ne4 12.de4 Bb7 13.Rb1 Be4 14.Bd3 Bc6 15.Bc5 0-0 16.Re1 Re8 17.Bb4 Na6 18.Bd2 Nc5 19.Bc2 Rad8 20.Qe2 e5 21.Be3 Na4 22.Ba4 Ba4 23.Nd2 Bc2 24.Rb5 Bd3 25.Qf3 e4 (worse is 25...Bc4 26.Rc5 Qc5 27.Bc5 Rd2 28.Qc3+/-) 26.Qf4 Qf4 27.Bf4 Bc3 28.Rc1 e3! 29.Be3 Re3! 30.fe3?! Bd2 31.Rd1 Bc4 32.Rbb1 Ba2 33.Ra1 Be3 34.Kf1 Bc4 35.Ke1 Re8 36.Rab1 Bd4 37.Kd2 Re2 (37...Re2 38.Kc1 Be3 39.Rd2 Rd2 40.Rb8 Rd8 41.Kc2 Rb8-+) 0–1. Frink,Ferenc (2235) – Stolz,Mike (2360), Balatonlelle op, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.f4 e6 5.Nf3 Bb7 6.Nc3 Nc6 7.Bc4 Be7 8.0-0 a6 9.a3 d6 10.Rb1 Qc7 (10...Na5 11.Qe2+=) 11.Qe1 (11.f5!? Nd4 12.fe6 fe6 13.Ng5 Bg5 14.Qh5 g6 15.Qg5+/-) 11...Nf6 12.d3 0-0 13.Ne2 (13.e5!? Ne8 14.f5=) 13...d5+= 14.ed5 ed5 (worse is 14...Nd5 15.f5+=) 15.Ba2 Rfe8 16.Qg3 Bd6 17.Nc3 Nd8 18.Bd2 d4 19.Na4 Rb8 20.Nb6? (better is 20.Ne5+=) 20...Bf3-+ 21.Qf3 Rb6 22.Ba5 Rb1 23.Bc7 Rf1 24.Kf1 Bc7 25.g3 Ba5 26.Bb3 Re3 27.Qa8 Ng4 (27...Re1 28.Kf2 Ng4 29.Kg2 Ne3 30.Kh3 Nd1+=) 28.Qa6= Rf3? (better is 28...Bc3 29.Qc8 h5 30.Qd8 Kh7=) 29.Kg2+- Rf2 30.Kg1 Be1? (30...Bc7 31.Qc8 Bb6 32.Qg4+-) 31.Qc8 (better is 31.Qa8 g6 32.Qd8 Kg7+-) 31...h5 (31...Ba5 32.Qc5 Re2 33.Qa5 Ne6+-) 32.Qd8 Kh7 33.Bf7 Nf6 34.Qe7 Rc2 35.Qe1 Ng4 (35...Rc3 36.g4 Ra3+-) 36.Qe4 (36.Qe4 Kh8 37.Qe8 Kh7 38.Qg8 Kh6 39.Qh8) 1–0. Martin Martinez – Gonzalez Martin, Asturias–chT, 1997. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.f4 e6 5.Nf3 Ne7 6.Bb5 Nbc6 7.0-0 Qb6 8.Nc3 d5 9.ed5 Nd5 10.Nd5 ed5 11.Qe2 Be7 12.Re1 c4 13.Nd4 Qd4 14.Kh1 0-0 15.Bc6 Qa1? (15...Be6 16.Ba8 Qa1 17.f5 Ra8 18.fe6+/-) 16.Ba8?? (better is 16.Qe7 Bb7 17.Bb7+- (worse is 17.Qb7 Qa2 18.Bd5 Rad8+-)) 16...Qf6?? (better is 16...Bd6 17.Bd5 Qa2+/-) 17.Qe7+- Qe7 (17...Be6 18.Qf6 gf6 19.Bc6+-) 18.Re7 Bf5 (18...Be6 19.Ra7 Rb8 20.Bb7+-) 19.Bd5 Bc2 (19...Be6 20.Be4+-) 20.Bc4 Rb8 (20...Bf5 21.d4+-) 21.Rf7 Re8 (21...Rb4 22.Rc7 Rc4 23.Rc4+-) 22.Re7 (better is 22.Ra7 Kh8 23.h3 h5+-) 22...Kf8 23.Re8 Ke8 1–0. Verseef,Yvar (1650) – Vorenhout,Aaron, Enschede op–D U14, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.g3 Bb7 5.Bg2 Nc6 6.Ne2 Rb8 7.0-0 Nf6 8.d3 e5 9.Nbc3 g6 10.Rb1 Ba8 11.Ba3 d6 12.f4 Bg7 13.f5 (13.Rb8 Qb8 14.Qd2 0-0+=) 13...0-0 14.h3 Nd4 15.Nd4 cd4 16.Ne2 Re8 17.g4 (17.fg6 fg6 18.Rb8 Qb8=) 17...d5 (17...Rb1 18.Qb1 g5 19.c4+=) 18.g5 (18.Rb8 Qb8 19.g5 Nd7+=) 18...Nh5 (18...Rb1 19.Qb1 Nd7 20.f6=) 19.f6 (19.Rb8!? Qb8 20.ed5 gf5 21.Qe1+=) 19...Bf8 20.Bf8 Rf8 21.Rb8 Qb8 22.ed5 Qd6 23.Qe1 Bd5 24.Bd5 Qd7?? (better is 24...Qd5 25.c3 dc3 26.Qc3 e4 27.de4 Qg5 28.Kh2 Re8+=) 25.Bg2+- Nf4 (25...Rc8+-) 26.Nf4 ef4 27.Qh4 (27.Qh4 h5 28.gh6+-) 1–0. Pottberg,Uwe – Kokalj,Janez, Canarias en Red prel 1st blitz, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

4.g3 Bb7 5.Bg2 f5 6.d3 Nf6 7.f3 e6 8.Ne2 fe4 9.fe4 Qc7 10.0-0 Bd6 11.Nd2 Be5 12.Rb1 Nc6 13.Nc4 0-0 14.Ne5 Ne5 15.Bb2 Rab8 16.Qd2 Ng6 17.h4 e5 18.Qg5 d6 19.h5 Nh8 20.Bc1 h6 21.Qh4 c4 22.Bh6+= gh6 23.Rf6 Rf6 24.Qf6 Rf8 25.Qh6+- Bc8 26.Rf1 Rf1 27.Bf1 cd3 28.cd3 Bg4 29.Kh2 Qf7 30.Qg5 Qg7 31.Qg7 Kg7 32.Nc3 Nf7 33.Be2 Bd7? 34.g4+- 1–0. Toth,Jozsef (2090) – Lengyel,I, Balazs mem op (3), 1998.

4.g3 Nc6 5.Bg2 Rb8 6.Ne2 g6 7.0-0 Bg7 8.c3 Ba6 9.Re1 Bd3 10.Na3 e5 11.f4 f6 12.Nc2 Nge7 13.fe5 fe5 14.Rf1 Ng8 15.Ne1 Ba6 16.d3 Nf6 17.Bg5 0-0 18.Qd2 Qb6 19.c4 Qb2 20.Nc2 Nd4 21.Ned4 cd4 22.Bh3 Rf7 23.a3 Rb6 24.Nb4 Qd2 25.Bd2 Bb7 26.a4 Bc8 27.c5 Rb8 28.c6 Bf8 29.cd7 Bd7 30.Bd7 Nd7 31.Rf7 Kf7 32.Nc6 Rb3 33.Na7 Rd3 34.Bc1?? Rd1-+ 35.Kf2 d3 36.Bb2 Bc5 37.Kf3 Ra1 38.Ba1 Ba7 39.a5 Ke6 40.a6 Nc5 (40...Nc5 41.Bc3 Na6-+) 0–1. Rewitz,P (2260) – Laursen,N1 (2185), 47th XtraCon TCh–DEN, 2009.

4.Bb2 Nc6

5.Nc3 Nf6 6.f4 (6.Nf3 Rb8 7.Rb1 e5+=) 6...e6= 7.e5 Nd5 8.Nd5 ed5 9.Nf3 Rb8 10.Rb1 c4 11.Bc3 Rb1 12.Qb1 Bc5 13.d4 Bb6 (13...cd3 14.cd3 d4 15.Bd2=) 14.Qb5+= Ne7 15.Bb4 (15.g3 a6 16.Qa4 0-0+-) 15...a6 16.Qa4 Nc6 17.c3 Nb4 18.Qb4 (worse 18.cb4 0-0 19.Kd2 Qc7-+) 18...Ba5 19.Qa3 d6 (19...Bc7!?+=) 20.ed6+- 0-0 21.Be2 f6 (21...Re8!? 22.Ne5 f6+=) 22.Kf2 Bb6 23.Nd2 Qd7 (23...Be6 24.Bf3 Qd7 25.Rb1+-) 24.Re1 Rd8 (24...Qc6 25.Bf3 Bf5 26.Nf1+-) 25.Bf3 Qc6 (25...Qb5 26.Rb1 Qc6 27.Qb4+-) 26.Re7 (better 26.Qb4!? Qb5 (26...Rd6 27.Nc4 Bd4 28.cd4+-; 26...Qd6?? 27.Re8 Kf7 28.Qd6 Rd6 29.Rc8+-) 27.Qb5 ab5 28.Bd5 Kf8+-) 26...Bf5 (26...Rd6? 27.Re8! Qe8 28.Qd6+-) 27.g4 (better 27.Nf1!? Qd6 28.Qd6 Rd6 29.Ne3+-) 27...Bg6+- 28.Nf1 Rd6? (better 28...Qd6!? 29.Qd6 Rd6+-) 29.Ne3+- Bd8 (29...Bf7 30.Nc4! (worse 30.Qa6 g6+-) 30...Rd8 31.Ne3+-) 30.Ra7 Be4 (30...Be8 31.Ra8 Bf7 32.Qc5 Qa8 33.Qd6+-) 31.Be4 de4 32.Rg7! Kg7 33.Qd6! Qd6 34.Nf5 Kf8? (34...Kg6 35.Nd6 Bc7 36.Ne4 Bf4+-) 35.Nd6 Bc7 36.Ne4 Bf4 37.Nf6 Kf7 38.Ne4 Bh2 (38...h6+-) 39.Ng3 1–0. Kumala,Aleksander – Kislinsky,Alexey, 27th Cracovia GROUP A and B, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Bc4 e6 6.Nc3 Nf6 7.f4 d6 8.Nf3 Be7 9.0-0 Qb6 (9...0-0 10.Rb1=) 10.Rb1+= a6 11.Nd5 Qa7 (11...ed5 12.Bf6) 12.Nf6 gf6 13.f5! Na5 (13...ef5 14.ef5 Combination) 14.Be2 Bb7 15.fe6 fe6 16.Ng5! Kd7 (16...fg5 17.Bh5) 17.Bf6 Bf6 18.Rf6 Rae8 (18...Raf8 19.Qf1 (19.Re6?! h6=) 19...Rf6 20.Qf6+-) 19.Bg4 c4 20.Kh1 Qd4 (20...Re7 21.Re6 Re6 22.Qf1+-) 21.Be6 Re6 22.Re6 (worse is 22.Ne6 Qf6 23.Qg4 Ke7-/+ (worse is 23...Qe6 24.Qg7 Qe7 25.Qh8=)) 22...Rg8 (22...h6 23.Qg4 hg5+-) 23.c3 (better is 23.Qf3 Qg7 24.h4 Kc8 25.Rd6 Qe5 26.Qh3 Kb8+-) 23...Qg7?? (better is 23...Qc5 24.Rh6 Qg5 25.Rh7 Kc8+/-) 24.h4+- h6 (24...Qf8 25.Qa4 (25.Nh7 Qf2 26.Nf6 Ke6 27.Ng8 Qh4 28.Kg1 Be4+-) 25...Bc6 26.Qa5 Rg5 27.hg5 Ke6 28.Qa6+-) 25.Qg4 (better is 25.Qa4 Bc6 26.Qa5 hg5+-) 25...Kc6 (25...Kc7 26.Qf4 Qd7 27.Rh6 Re8+-) 26.Qf5 Nb3 27.Qd5 Kc7 (27...Kb6 28.Qc4 Ka7 29.Qb3 hg5 30.Qb6 Ka8 31.Rg6 gh4 32.Rg7 Rg7 33.Qd8 Ka7 34.Qd6+-) 28.Qd6 Kc8 29.Re7 Qe7 30.Qe7 Kb8 31.Qe5 (31.ab3 Rh8 32.bc4 Rh7 33.Qh7 Kc8 34.Ne6 Be4 35.Qc7) 31...Ka7 32.Ne6 Rg4 33.ab3 Be4 34.Qc7 Ka8 35.Ra1 Bg2 36.Kh2 Bb7 37.Nc5 1–0. Nasikan,Nikolai – Levenko,Andrey, Kiev Independence Cup–B 6th, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nf3 Rb8 6.Qc1 Qb6 7.Bc3 (7.Ba3 Nf6 8.Nc3 Qa5=) 7...Nf6 (7...Nd4 8.Qd1=) 8.d3 (8.Bf6 ef6 9.Nc3 Qb2=) 8...d6 9.Nbd2 e5 10.Nc4 (10.Rb1 Qc7=) 10...Qc7=+ 11.Be2 (11.Rb1 Be6 12.Rb8 Qb8=+) 11...Be7 12.h3 (12.Qd2 Be6 13.Ne3 d5 14.ed5 Nd5 15.Nd5 Bd5-/+) 12...Be6 (12...0-0 13.0-0-/+) 13.Ne3 Nd4 14.Bd2 (14.Qd2 0-0=+) 14...Ne2 15.Ke2 c4 16.Ng5 c3 17.Ne6 fe6 18.Be1 d5 19.Rb1 (19.ed5 ed5 20.Nf5 Bb4-/+) 19...0-0 20.Rb3 de4 (20...d4 21.Ng4-/+) 21.Bc3 (21.Rc3 Qd6-/+) 21...Nd5 (better 21...Rb3 22.cb3 Nd5 23.Nd5 ed3 24.Kd3 ed5-+) 22.de4?? (better 22.Nd5 ed3 23.cd3 ed5 24.Ba1-/+) 22...Nf4 (better 22...Nc3 23.Rc3 Qc3 24.Rd1-+) 23.Kf1 Rb3 24.cb3 (24.ab3 Qc3 25.Qe1 Qd4-+) 24...Nd3 (24...Nd3 25.Qc2 Rf2 26.Qf2 Nf2 27.Kf2 Qc3-+) 0–1. Dotsenko,Serg1 (2185) – Chekhov,Sergei (2440), Botvinnik Memorial, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nf3 Rb8 6.Qc1 Nf6 7.Bf6 gf6 8.Nc3 e6 9.Bb5 Nd4 10.Be2 Be7 11.0-0 Qa5 12.Rb1 Bb7 13.Nb5?? (13.Qd1 Bd6 14.Bc4 Bf4=) 13...Be4 (13...Ne2 14.Kh1 Nc1 15.Rfc1 Be4 16.Nc3 Rb1 17.Rb1 Bf3 18.gf3-+) 14.d3?? (14.Nbd4 Rb1 15.Qb1 cd4 16.Qb8 Bd8 17.Nd4 Qa2=+) 14...Bg6 (better 14...Ne2 15.Kh1 Nc1 16.de4 Na2-+) 15.Nfd4 cd4 16.Nd4 Rb1 17.Qb1 0-0 18.c4 Bd6 19.Nc2?? (19.Nf3 Rb8 20.Qc2 Qb4=+) 19...h5 (better 19...Qe5 20.g3 Qe2-+) 20.Ne3-/+ Rd8 (better 20...Rb8 21.Qa1 Qe5-/+) 21.Nc2?? (21.Qb2 Qe5 22.Qe5 fe5=) 21...Rf8 (better 21...Qe5 22.g3 Qe2-+) 22.Qd1 (22.Ne3 Rb8 23.Qa1 Qe5-/+) 22...Kg7 23.Bh5?? (better 23.d4!?=+) 23...Rh8 (better 23...Bh5 24.Qe1 Qe1 25.Re1 Rb8-+) 24.Bg6-/+ Bh2 25.Kh1 Qc5 (25...fg6 26.Re1-+) 26.g3 (26.Be4 Qg5 27.Re1-+) 26...Bg3-/+ (26...fg6?! 27.Kg2 Qf5 28.Rh1+=) 27.Kg2 Bb8 28.Be4? (better 28.d4 Qg5 29.Kf3 fg6 30.Ke2-/+) 28...Rh2-+ 29.Kg1 (29.Kf3 Rf2!! 30.Rf2 Qh5 31.Kg2 Qd1 32.Ne3-+) 29…Qg5 (29...Qg5 30.Qg4 Qg4 31.Bg2 Qg2) 0-1. delightful_porridge – Panza, ChessWorld.net, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nf3 Rb8 6.Bc3 Nf6 7.Bf6 ef6=.

4.Nc3 Bb7

5.Rb1 Bc6 6.Bc4 e6 7.Nf3 Nf6 (7...d5 8.ed5 ed5 9.Be2+=) 8.Qe2+= Be7 9.0-0 (9.Ne5 0-0+=) 9...0-0 (9...d5 10.Bb5 d4 11.Ne5=) 10.e5 Ng4 (10...Nd5 11.Ne4+=) 11.d4 (11.h3 Nh6+/-) 11...Qa5 (11...d5 12.ed6 Bd6 13.h3 cd4 14.Nb5 Bb5 15.Bb5+=) 12.Bd2+/- cd4 (better 12...Qc7 13.h3 cd4+/-) 13.Nd5+- Qd8 14.Ne7 Qe7 15.Bb4 (15.Nd4?! Qh4 16.h3 Nh2 17.Kh2 Qd4+/-) 15...Qd8 16.Bf8 Qf8 17.Nd4 Nh6 18.Rfd1 Qc5 19.Nc6 Nc6 20.Rd7 (20.Rb5!? Qe7+-) 20...Ne5 21.Bd5! Nd7 (21...ed5 22.Qe5 Decoy (22.Qe5 Interception)) 22.Ba8 g6? (22...Nf8 23.Be4+-) 23.Be4 (better 23.Qd2 Qf8 24.Qd7 Qa8+-) 23...Nb6 24.g3 Qd4 25.Qd3 Qc5 26.c3 Qa5 27.Qd8 Kg7 28.Qd4 f6 29.a4! Qg5? (29...Qa4 30.Rb6 Decoy; 29...Na4 30.Rb7 Double attack) 30.Qe3 (30.Qd6 Nf7 31.Qe6 Qc5+-) 30...Qe5? (30...Qe3 31.fe3 Na4 32.Rb7 Kh8 33.Rc7+-) 31.Bf3 (31.Rb5 Qd6 32.a5 Nc8+-) 31...Qc7? (better 31...Qe3 32.fe3 Na4+-) 32.a5 (better 32.Qe6!? Qc3 33.Rb6 ab6 34.Qe7 Nf7+-) 32...Nd5?? (32...Nc4 33.Qe4 Na5 34.Qe6 Nf7+-) 33.Qe6 (33.Qe6 Qe7 34.Qd5+-) 1-0. Hrabinska,M (2235) - Elgersma,Onno (2295), Titled Tuesday 9th Feb, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

5.Rb1 Bc6 6.Nf3 g6 7.Bc4 Bg7 8.0-0 d6 (8...Nf6 9.e5 Nh5 10.d4 cd4 11.Nb5 (worse 11.Qd4 Bf3 12.gf3 Nc6=+) 11...Bb5 12.Bb5+-) 9.d4 cd4 10.Nd4 Nf6? (10...Bd4 11.Qd4 Nf6+-) 11.Rb8! Rb8 (11...Rb8 12.Nc6 Double attack (12.Nc6 Decoy; 12.Nc6 Remove defender); 11...Qb8 12.Nc6 Remove defender) 12.Nc6 Qc7 13.Nd5 (13.Nb8 Qc4 14.Qd3 Qd3 15.cd3 Nd7 16.Nd7 Kd7+-) 13...Nd5?? (better 13...Qc6 14.Qd4 Qb7-/+) 14.ed5+- (14.Bd5?! Rb1 15.e5 de5+-; worse 14.Qd5 e6 15.Qd3 Qc6-+) 14...0-0 15.Re1 (15.Nb8 Rb8 16.Bb3 Rb4+-) 15...Bf6 (15...e6 16.Nb8 Qc4 17.Nc6+-) 16.Qf3 (16.Nb8 Rb8 17.Bb3 Qc3+-) 16...Kg7 (16...Rb1 17.Qe4+-) 17.Bd2 (17.Nb8 Rb8 18.Bb3 Rb4+-) 17...a5 (17...Rbe8 18.a4+-) 18.a4 (18.Ba5 Qd7 19.Nb8 Rb8+-) 18...Rfe8 (18...Qb6 19.Bb5+- (19.Ne7?! Qd4 20.Bd3 Be7 21.Re7 Rb1 22.Re1 Re1 23.Be1 Qa4+-)) 19.Re4 (19.Ba5 Qc8 20.Bc3 Qf5 21.Qf5 gf5 22.Nb8 Bc3+-) 19...Qb6 (19...Rb1 20.Bf1+-) 20.Bb3 (20.Bb5 Qb7+-) 20...Qc5 (20...Ra8 21.g3+-) 21.g3 (21.Ba5 Rbc8+-) 21...h5 (21...Ra8 22.Bc4 Qb6 23.Bb5+-) 22.Rf4 (better 22.Rc4 Qb6 23.Ba5+-) 22...Rf8 (22...Ra8+-) 23.Rf6 ef6 (23...Rb7 24.Rf4+-) 24.Bc3 Kh7 (24...Qc3 25.Qc3 Rfc8 26.Qa5+-) 25.Qf6 Rg8 26.Qf7 Kh6 27.Bd2 g5 28.h4 (28.Ne7 Qd5 29.Bd5 Rb1 30.Kg2 Rg1 31.Kg1 Rg7 32.Nf5 Kh7 33.Qg7) 28...Rg7 29.hg5 Kh7 30.g6 Kh8 31.Qf6 Qb6 (31...Kg8 32.Ne7 Re7 33.Qe7 Qf2 34.Kf2 Rf8 35.Kg2 Rf6 36.Qf6 h4 37.Qf7 Kh8 38.Bc3) 32.Bc3 (32.Nb8 Qb8 33.Bc3 Qg8 34.Qf4 Qf7 35.Qf7 h4 36.Qg7) 32...Qc7 33.Ne7 (33.Ne7 Qe7 34.Qe7 Rbg8 35.Bc4 Rb8 36.Qg7) 1–0. Maksimovic,S (2140) – Vuckovic,J (1985), TCh–SRB Premier w, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Rb1 Qc7 6.Nf3 e6 7.Nb5 Qc6 (7...Qd8 8.Bb2 Nf6 9.Be5+-) 8.Bd3 (8.d3 a6 9.Na3 Qc7+-) 8...a6+- 9.Nc3 (9.Ne5 Qc8 10.Nc3 Nc6+-) 9...d6 10.0-0 Be7 (10...Nf6 11.h3+-) 11.e5 d5 12.Ba3 (12.Be2 Nd7 13.d4 Nh6+=) 12...Nd7 13.Re1 (13.Qc1 Nh6=) 13...Nh6 14.h3 (14.Ne2 Rb8+=) 14...0-0 (14...Rb8 15.Qe2=) 15.Ne2 Rfe8 16.Nf4 (16.c3 Rab8+=) 16...c4 17.Be7 (17.Nd4 Qc7 18.Be7 Re7=) 17...cd3 18.Nd4 dc2 19.Qc2 Qc2 20.Nc2 Bc6 (20...Re7 21.Rb7 Nf5 22.Nb4=) 21.Nd4 Bb5 22.Bd6 (worse 22.Nb5 ab5 23.Bd6 Ra2 24.Rb5 Rd2=+) 22...Nf5? (better 22...Rec8+-) 23.Nf5+- ef5 24.Nd5 f6 (24...Ra7 25.Ne7 Kh8 A) 26.Nf5?! Bd3 27.g4 Bb1 28.Rb1 Nf8+- (28...Ne5?? 29.Be5 f6 30.Bd4+-); B) 26.Rb4+-) 25.e6 Ne5 26.Nc7 Nd3 (26...Nc4 27.Bb4+- (worse 27.Ne8 Re8 28.Bc7 Nd2+-)) 27.Re3 Rad8 (27...Bc4+-) 28.Rb5 Re6 (28...ab5 29.Rd3 Rc8 30.Ne8 Re8+-) 29.Ne6 Rd6 30.Rb8 Kf7 31.Rb7 Kg6 32.Rg3 Kh6 33.Ng7 (33.Ng7 Rd5 34.Rf7+-) 1–0. Janek – Swefs, internet, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Rb1 Qc8 6.Bc4 g6 (6...Nf6 7.Nf3 Nc6 8.a3+=) 7.d3 (7.Nf3 f5+/-) 7...Bg7 8.Bd2 Nf6 9.f4 0-0 10.Nf3 e6 Prevents intrusion on d5 (10...Ba6 11.Ba6 Na6 12.f5+=) 11.Nb5 (11.e5!? Ne8 12.a3+=) 11...Ne8= 12.e5 This push gains space 12...d5 13.Bb3 Nd7 14.c4 d4 Black wins space 15.0-0 a6 Black threatens to win material: a6xb5 16.Na3 f6 17.ef6 Bf6 Black has a new backward pawn: e6 (17...Nef6 18.Kh1=) 18.Qe2 White threatens to win material: Qe2xe6 (18.Ba4 Ng7=) 18...Ng7 19.Ne5 (19.Ba4 Bc6 20.Bc2 Qc7=) 19...Qc7 (better is 19...Be5 20.fe5 Qc6=) 20.Ba4?? gives the opponent counterplay (better is 20.Ng4+= and White can hope to live) 20...Ne5-/+ (20...Be5?! 21.fe5 Bc6 22.Bc6 Qc6 23.Nc2=) 21.fe5 Be5 22.Rf8? (22.g4!?-/+) 22...Rf8-+ 23.Rb7? Qb7?? White king safety dropped. ruins a very nice position 24.Bd1?? throwing away the advantage 24...Bf4 25.Bf4 Rf4 26.Nc2 Rf6 27.Ne1 Nf5 28.Qe5 Kg7 29.g4= White threatens to win material: g4xf5 29...Kf7 30.g5+/- (30.g5 Qe7 31.Nf3+/-) 1–0. Reh,Stefan (2085) – Fischer,Gerold, Bad Zwesten op 5th, 2001. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Rb1 e5?? 6.Rb7+- Nc6 7.Bb5 (7.Nb5 Rb8 8.Nc7 Ke7 9.Rb8 Qb8 10.Nd5 Ke8+-) 7...a6 (7...Qc8 8.Bc6 Qc6 9.Rb3+-) 8.Bc6 dc6 9.Qh5 Nf6 (9...Qf6+-) 10.Qf7 1-0. juliangon - delightful_porridge, ChessWorld.net, 2022. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

4.Nc3 Nc6

5.Rb1 d6 6.Bb5 Bb7 (6...Bd7 7.Nf3+=) 7.Nge2 e5 8.Nd5 Be7 9.Ba4 Rb8?? (better 9...Qd7+-) 10.Rb7!+- Qc8 (10...Rb7 11.Bc6 Decoy (11.Bc6 Remove defender)) 11.Rc7 Qd8 (11...Qa6 12.Nec3 Kf8 13.Rc6+-) 12.Bc6 Kf8 13.Ng3 (better 13.Ra7 Qc8 14.Bd7 Qd8+-) 13...Nf6 (13...Rc8 14.Rd7 Qa5 15.Nf5 Rc6 16.Qf3+-) 14.Re7 Kg8 (14...Rc8 15.Bb5 Rb8+-) 15.Nf6 gf6 16.Qg4 Kf8 17.Nf5 Rg8 18.Qh4 (18.Qh5 Rg6 19.Qh7 Qe7 20.Qh8 Rg8 21.Qh6 Rg7 22.Qg7) 18...Qe7 (18...Rg6 19.Qh7 Qe7 20.Qh8 Rg8 21.Qh6 Rg7 22.Qg7) 19.Qh6 (19.Qh6 Rg7 20.Qg7) 1–0. juliangon (2540) – delightful_porridge (1670), ChessWorld.net, 2013. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Rb1 d6 6.Bc4 e6 7.Nf3 Bd7 8.d4 cd4 9.Nd4 Nd4 10.Qd4 Nf6 11.0-0 Be7 12.Nb5 0-0 13.Nd6 Bc6 14.e5 Nd5 15.Bb5 Bb5 16.Nb5 Qa5 17.Bd2 Qb6 18.Qg4 Kh8 19.c4 Nc7 20.h4 Nb5 21.Rb5 Qc6 22.Bb4 Bb4 23.Rb4 Rfc8 24.Rc1 a5 25.Rb3 a4 26.Rg3 g6 27.h5 Qc5 28.Qg5 Qf8 29.Rd1 Ra7 30.hg6 fg6 31.Rd6 Rf7 32.Qd2 Re8 33.c5 Rb8 34.Rb6 Rc8 35.Rd6 Rb8 36.c6 Rb1? 37.Kh2+- Rf2 38.Rd8 Rd2 39.Rf8 Kg7 40.c7 Rdd1 41.Rg8!! Kg8 42.c8Q Kg7 43.Rf3 Kh6 44.Qf8 Kh5 45.g4! (45.g4 Kg4 46.Qf4 Kh5 47.Rh3) 1–0. Ilic,An (2025) – Papadopoulos,C (1845), 5th ch–Euro IBCA, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Rb1 d6 6.Bc4 g6 7.Nf3 Bg7 8.0-0 e6 9.Re1 Nge7 10.Ba3 0-0 11.h3 h6 12.Bf1 Qd7 13.e5 Ne5 14.Bc5 Bb7 15.Ne5 de5 16.Qg4 Bc6 17.Bb5 Bb5 18.Nb5 (18.Rb5 Qd2 19.Reb1 Qc3 20.Be7 Rfc8-/+) 18...Rfc8 19.Be7 Qe7 20.Qa4 (better is 20.Nc3!?=) 20...Qd7-/+ 21.d3 (better is 21.c4!?-/+) 21...a6-+ 22.Nc3 Qa4 23.Na4 Rc2 24.Rb7 (24.a3-+) 24...Ra2 25.Nb6 Rd8 26.Rc1 e4 (26...e4 27.de4 Bd4-+; 26...Rd3 27.Rc8 Bf8 28.Nd7 Rd1 29.Kh2 Rd7 30.Rd7+=) 0–1. Chernov,Vladimir I – Najgebauer,S (2230), ch–UKR, Alushta UKR, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Rb1 d6 6.g4 e5 7.Bb5 Bd7 8.Nge2 h5 9.gh5 Rh5 10.Nd5 Rh3 11.Rb3 Rc8 12.Rh3 Bh3 13.Rg1 Qh4 14.Nec3 Nh6 15.Qf3 Bd7 16.Bc6 Rc6 17.d3 f6 18.Qg3 Qh5 19.f3 Kf7 20.Bd2 Rc8 21.Kd1 Ng8 22.Kc1 g5 (better 22...Ne7=) 23.f4!+- ef4 (23...ef4 24.Bf4; 23...gf4 24.Qg8 Pinning (24.Qg8 Deflection)) 24.Bf4! Ne7 (24...gf4 25.Qg8 Double attack (25.Qg8 Pinning; 25.Qg8 Deflection; 25.Qg8 Decoy)) 25.Bd6+- Nd5 26.Nd5 Bh6? (better 26...Bg7+-) 27.Rf1 g4 28.Kb2 (28.Kb1 Bg7+-) 28...Bg7 29.Be5 (better 29.Nf6 Bf6 30.e5+-) 29...Qh6?? (29...Qe5 30.Qe5 f5 31.Qg7 Kg7 32.ef5 Rh8+-) 30.Bf6 Bf6 31.Rf6 (31.Qe5! Rc6 32.Rf6 Qf6 33.Nf6 Rb6 34.Kc3 Rf6+-) 31...Qf6 32.Nf6 Kf6 1–0. Simonsen,O (2180) – Petersen,Kari (1895), TCh–FAI, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Rb1 Nf6 6.Nf3 e6 7.Bb5 Rb8 8.0-0 Bb7 9.e5 Ng4 10.d4 cd4 11.Nd4 Nce5 12.h3 Rc8 13.hg4 Rc3 14.Re1 Nc6 15.Bf4 Qc8 16.Nf5 a6 17.Qd2 Rc5 18.Ba4 Na5 19.Bg3 h6 20.Qd4 (20.Qd4 Rg8 21.Nd6 Bd6 A) < 22.Bd6 Rc4 23.Qd3 Rg4=+ (23...Ra4?? 24.Qh7 Rf8 25.Qg7 Bg2 26.Qf8); B) 22.Qd6+/-) 1–0. Bergmann,Michael (2470) – Frijling,Jeroen (2135), IECG, 2008.

5.Rb1 Nf6 6.Nf3 e6 7.Bc4 Be7 8.Qe2 d6 9.e5 Ne5 10.Ne5 de5 11.Qe5 0-0 12.0-0 Bd6 13.Qe2 Qc7 14.h3 Bb7 15.d3 Qc6 16.f4 Rad8 17.f5 ef5 18.Rf5 Rde8=+ 19.Qf3 Qf3 20.gf3 Bc8 21.Rf6 gf6 22.Bh6 Kh8 23.Bf8 Rf8 24.Ne4 Be5 25.Kh1 Bh3 26.Nc5 Bd4 27.Nb3 Bf2 28.Kh2 Bd7 29.Rf1 Be3 30.f4 Rg8= 31.Bd5 Rg4 32.f5 Bf4 33.Kh1 Bf5 34.Rf3 Bc8 35.d4 Kg7 36.c4 h5 37.c5 h4 38.Rc3 Rg5 39.Be4 h3 40.Rf3 Bc7 41.d5 Re5 42.d6? Re4-+ 43.Rg3 Kf8 44.dc7 Re1 45.Rg1 Rg1 46.Kg1 Ke7 47.Nd4 Kd7 48.Kh2 Kc7 49.Nb5 Kb8 50.a3 Bd7 51.Nd4 Kc7 52.Kg3 a6 53.Kh2 Bg4 54.Kg3 f5 55.Kh2 f4 56.Kg1 f3 57.a4 Kd7 58.a5 Kc7 59.Nc2 Bf5 60.Ne3 Be4 61.Ng4 f5 62.Nf2 Kc6 63.Nh3 Kc5 64.Kf2 Kb5 65.Ke3 Ka5 66.Kd2 Kb4 67.Kc1 a5 68.Kb2 a4 69.Nf2 a3 70.Ka2 Bd5 71.Ka1 Kc3 0–1. Zajarnyi,A (2380) – Eljanov,P (2485), Chigorin Mem (4), 2000.

5.Rb1 Nf6 6.Nf3 e6 7.Bc4 Be7 8.e5 Ng4 9.Qe2 f6 10.Qe4 f5 11.Qe2 0-0 (11...Nd4 12.Nd4 cd4 13.Nb5+-) 12.0-0 (12.h3 Nh6+=) 12...Nh6 (12...d5 13.ed6 Qd6 14.Nb5+-) 13.d4 (13.a3 Na5+=) 13...cd4+= 14.Nb5 Qb6 (14...Nf7 15.Nbd4 (worse 15.Nfd4 Nce5 16.Nf5 Bf6=+) 15...Nd4 16.Nd4+=) 15.Bh6+- gh6 16.Rbd1 The pressure on d4 grows (16.c3 dc3 17.Nc3 Qa5+=) 16...Na5 (16...Bc5 17.c3 dc3 18.Nc3+=) 17.Rd4+- (worse 17.Nbd4 Nc4 18.Qc4 Ba6=+) 17...Bc5 18.Rd2 Nc4 (18...Bb7 19.Nd6+-) 19.Qc4 Rb8 20.a4 Rf7 (20...f4 21.Rfd1+-) 21.Rfd1 (21.Qh4 Bb7 22.Nd6 Bd6 23.Rd6 Qc5+=) 21...Rg7 (21...Bb7 22.Rd7 Bf2 23.Kf1+-) 22.Qh4 Be7 (22...Qa5 23.h3+-) 23.Qh5 Bb7 (23...Qa5 24.Rd4+-) 24.Rd7 Qc6 25.R7d3 (25.Qh6 Bf8 26.Rg7 Bg7+-) 25...Qc2 26.Nd6 (26.Nbd4!? Qc4 27.R3d2+= (worse 27.Qh6 Bf3 28.Rf3 Qd4 29.Qe6 Kh8-+)) 26...Bc6 (26...Bd6 27.ed6 Qa4 28.Nh4=) 27.Ne1 Qc5 28.Qh6 Qe5 29.Re3 Qf6 30.Qf6 (worse 30.Re6 Qh6 31.Rh6 Ba4=+) 30...Bf6 31.Re6 ½–½. Clement,George (2205) – Gazi,Miroslav (2285), FICGS, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 d6 6.Nge2 Nf6 7.0-0 e6 8.d4 cd4 9.Nd4 Ne5 10.Bb5 (10.Be2 Bd7+-) 10...Bd7 11.f4 (11.Rb1 Rc8 12.Bd2 Bb5 13.Rb5 Rc4+=) 11...Neg4 (11...Bb5 12.Ndb5 Nc4 13.Rb1+=) 12.Qf3 (12.Rb1!? Bb5 13.Rb5+-) 12...Bb5+= 13.Ndb5 (13.Ncb5 a6 14.e5 ab5 15.ef6 Nf6 16.Qc6 Nd7=) 13...a6 (13...Qb6 14.Kh1 Rc8+=) 14.Na3 (better 14.Nd4!? Qb6 15.Rd1+=) 14...Rc8 (14...h5 15.Rb1=+) 15.h3 (15.Rb1 h5=) 15...Qb6 (15...Qa5 A) 16.hg4? Rc3 (16...Qc3?! 17.Qc3 Rc3 18.Bb2=+) 17.Qe2 d5 (17...Ra3?! 18.Ba3 Qa3 19.Rab1-+) 18.ed5 Ba3 (18...Ra3?! 19.Ba3 Ba3 20.de6=+; 18...Qd5?! 19.g5 Ne4 20.Rb1 Bc5 21.Kh2-+) 19.de6 Qb6 20.Kh2 Bc1 21.Rac1 Qe6 22.Qe6 fe6-+; B) 16.Ne2 Qc5 17.Kh1=+) 16.Kh1 Qa5 17.Nab1 (17.Ne2 h5=) 17...Qh5 (better 17...h5!?=+) 18.Ba3 Nh6 19.Qd3 Qa5 20.g4 Nhg4 21.hg4 Ng4 22.Qg3 (22.Bd6 Qh5 23.Kg2 Qh2 24.Kf3 Bd6 25.Qd6 Qh3 26.Ke2 Qe3 27.Kd1 Rd8 28.Qd8 Kd8-+) 22...h5 23.f5 Be7 (23...Rc6 24.Bc1=) 24.fe6 fe6 25.Bd6 Rf8 26.Rf8 Bf8? (better 26...Kf8 27.a4 Qd8 28.Be7 Qe7+=) 27.Bf8+- Kf8 28.Qd6 Ke8 29.Qe6 Kd8 30.Qd5 (better 30.Qg8 Kc7 31.Qg7 Kd6 32.Qg6 Kd7 33.Qf7 Kc6 34.Qe7+-) 30...Qd5+- 31.Nd5 (31.ed5 Nf6+-) 31...Rc2 32.Nbc3 g5 33.Re1 Nf2 34.Kg1 (34.Kg2 Ne4 35.Re2 Re2 (35...Nc3?? 36.Rc2 Na4 37.Rc6+-) 36.Ne2 g4+=) 34...Nh3= 35.Kh1 Nf2 36.Kg2 Ne4 37.Re2 Re2 (37...Nc3?? 38.Rc2 Ne4 39.Re2+-) 38.Ne2 g4 39.Nb4 Kc7 40.Na6 Kb6 41.Nb4 Kb5 42.Nd5 Kc4 43.Ndf4 Kb4 44.Nd5 Ka3 (44...Kc4!?=) 45.Ndc3+= h4 46.Ne4 Ka2 47.Nf6 Kb3 48.Ng4 Kc4 49.Nf2 Kd5 (49...h3 50.Kh2+=) 50.Kh3 (50.Nh3 Ke5+-) 50...Ke5 51.Kh4 (51.Ng4!? Ke4 52.Nf6 Ke5 53.Ng8+=) 51...Kd5= 52.Kg4 Ke5 53.Kf3 Kd5 54.Kf4 Kc4 55.Ke4 Kc5 56.Nd3 Kc4 57.Ne5 Kc5 58.Nc3 Kd6 59.Nd3 Ke6 ½–½. Mousse Neto,Sebastiao Alberto (2070) – Gutierrez,EAS (1840), Zonal Amazonas, 2015. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 e6 6.f4 Nf6 7.e5 d5? (better is 7...Ng8 8.Nf3 d5=) 8.Bb5+- (worse is 8.ef6 dc4 9.fg7 Bg7+=) 8...Qb6? (better is 8...Bd7 9.ef6 Qf6+-) 9.ef6 d4 10.Ne4 gf6 11.Bc6 Qc6 12.Qe2 Bb7 13.d3 f5 14.Nf6 Ke7 15.Nf3 Kf6?! (15...h5 16.Rg1 Qd6+/-) 16.Qe5 Kg6 (16...Ke7 17.Qh8 Qa4+-) 17.g4 (better is 17.Nh4 Kh5 18.Nf5 Qe4 19.de4 h6 20.Qf6 Rg8 21.Qf7 Rg6 22.Ng3 Kh4 23.Qg6 Be4 24.Qh5) 17...Qf3 (better is 17...f6 18.gf5 ef5 19.Rg1 Kf7 20.Ng5 fg5 21.Qf5 Qf6 22.Qf6 Kf6 23.fg5 Kg6-+) 18.gf5+/- Kh5 19.f6 (better is 19.Rg1 Qd5 20.Qf6+- (worse is 20.Qh8 h6+-)) 19...Kh4= 20.Qg5 Kh3 21.Rg1 Kh2 22.Rg4 Qh1 23.Kd2 Bg2?? (better is 23...Qg2 24.Rg2 Bg2+-) 24.Bb2 1–0. Agarwal,Rohan (1705) – Bodwin,Greg, Fremont Weibel Quads, 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 e6 6.f4 Qh4 7.g3 Qd8 8.Nf3 Bb7 9.Rb1 Rb8 10.d4 cd4 11.Nd4 Bc5 12.Be3 Nd4 13.Bd4 Bd4 14.Qd4 Nf6 15.Qa7 Qc7?? (better is 15...Qc8+/-) 16.Nb5+- Qc6 (16...Qd8 17.Nd6 Ke7 18.Rb7 Rb7 19.Nb7+- (worse is 19.Qb7 Qa5 20.Kd1 Ng4+-)) 17.Qb8 Ke7 18.Qd6! Qd6 19.Nd6 Ne4 (19...Ba8 20.Rd1 Ne4 21.Ne4 Be4+-) 20.Nb7 1–0. Agarwal,Rohan (1785) – Bard,Tyler, California State–ch, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 Nf6 6.Nf3 g6 7.Bb2 Rb8 8.Rb1 Na5 9.Be2 Bg7 10.d3 (10.e5 Ng4 11.Na4 Nc6+=) 10...0-0 11.0-0 d6 12.Nd5?? (better is 12.Qd2=) 12...Rb2!-+ 13.Ne7 (13.Rb2 Nd5) 13...Qe7 14.Rb2 Ne4 15.de4 Bb2 16.Qd2 Qe4 17.c3 (17.c4 Bg7 18.Bd3 Nc4-+) 17...Ba3 18.Bd3 Qd5 19.Qh6 Qh5 (19...Qd3?? 20.Ng5 Qf1 21.Kf1 Ba6 22.Kg1 Re8 23.Qh7 Kf8 24.Qf7) 20.Qf4 c4! 21.Bc2 (21.Bc4 Nc4 Combination) 21...Qg4 22.Qh6 Bb7 23.h3 Qh5 24.Qe3 (24.Qh5 gh5 25.Nd4-+) 24...Bf3 25.gf3 Bc5 26.Qe7 (26.Qf4 Qh3 27.Be4 Re8-+) 26...Nc6 27.Qc7 (27.Qe4 Qg5 28.Kh1 Qd2-+) 27...Ne5 28.Be4 Nf3 (28...Nf3 29.Bf3 Qf3-+) 0–1. Blecharz,Pavel Sr (1800) – Folta,Frantisek (1900), Ostrava op–B, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 Nf6 6.f4 d6 7.Nf3 e6 8.e5 Nd7 9.Qe2 de5 10.fe5 Be7 11.Bb2 Rb8 12.Rb1 0-0 13.0-0 Nde5=+ 14.Ne4?? Nf3 15.Qf3 Rb2! 16.Rb2 Qd4 17.Nf2 Ne5 18.Qc3 Qc3 19.dc3 Nc4 20.Rb8 Ba6 21.Rfb1 Nb6 22.Rf8 Kf8 23.Nd3 Bd6 24.Kf2 Ke7 25.h3 Nd5 26.c4 Nb6 27.a4 Nc4 28.a5 f6 29.Ke2 e5 30.Kd1 e4 31.Nf2 f5 32.g4 g6 33.Rb3 Bf4 34.c3 Ke6 35.h4 Ne3 36.Ke1 Bg3 37.c4 f4 38.h5 Bc4 39.hg6 hg6 40.Rc3 Kd5 41.a6 Ng2 (41...Ng2 42.Kd1 Bf2-+) 0–1. Goldsmith,Alan – Ginat,Michael, AUS–ch Melbourne, 1982.

5.Bc4 g6 6.Rb1 Bg7 7.f4 e6 8.Nf3 Nge7 9.e5 d5 10.ed6 Qd6 11.Ne4 Qf4 12.d3 Qc7 13.0-0 0-0 14.Qe1 Nf5 15.g4 (worse is 15.Nc5 Ne5 16.Ne4 Nc4 17.dc4 Bb7-/+) 15...Nd6 16.Qg3 Be5 17.Qh4 Ne4 (17...Nc4?? 18.Ne5 f5 19.Nc6 (19.Nc4 fe4 20.Rf8 Kf8 21.Qf6 Kg8+-) 19...Qc6 20.Nf6 Rf6 21.Qf6+-) 18.de4 Bg7 19.Bh6 Qd8 20.g5 Bh6 21.Qh6 Ne5 22.Ne5 Qd4 23.Rf2 Qe5 24.Qh4 Bd7 25.Qf4 Qf4 26.Rf4 Rfb8 27.Rbf1 Be8 28.e5 Rd8 29.h4 Rd2 30.R1f2 Rd1 31.Kh2 Rad8 32.c3 Re1 33.Rb2 Re5 34.Kg1 Bc6 35.Kf2 Kg7 36.Be2 Rd7 37.Bg4 h6 38.Rb8?? (38.Bf3 Bf3 39.gh6 Kh6 40.Kf3 Rd3 41.Kf2 Rc3 42.Ra4-+) 38...Rd2 39.Kf1 Bg2 (39...Bg2 40.Kg1 Re1 41.Rf1 Bf1 42.Rg8 Kg8 43.Be2 Rde2 44.gh6 Bh3) 0–1. Bonafede,A (2310) – Brunello,S (2540), 70th ch–ITA Siena ITA, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Bc4 g6 6.Rb1 Bg7 7.f4 e6 8.Nf3 Nge7 9.e5 d5 10.ed6 Qd6 11.Ne4 Qf4 12.d3 Qc7 13.0-0 0-0 14.Kh1 Nd5 15.Qe1 Ne5 16.Ne5 Qe5 17.Bb2+= Qc7 18.Bg7 Kg7 19.Qf2 f5 20.Nc5+/- Re8 21.Rfe1 Nf6 22.Be6 Ng4 23.Qd4 Kh6+= 24.g3?? Be6-/+ 25.Rb7?? Qc6 26.Kg1 Bg8 27.Qg7 Kh5 28.Re8 Re8 (28...Re8 29.Ne4 Re4 30.de4 Qc5 31.Kh1 Qf2 32.Qh6 Kh6 33.Rh7 Kh7 34.ef5 Qh2) 0–1. Savage,Allan G – Alexopoulos,Georgios, Marshall Int 6th, 1983.

5.Nf3 Bb7 6.Rb1 Rb8 7.Bc4 e6 8.0-0 Qc7 9.d3 Nf6 10.Nb5 Qd8 11.Bf4 d6 12.Re1 (12.e5 Nh5 13.Bg5 Qd7+/-) 12...a6+= 13.Nc3 Nd7 14.h3 Be7 15.Qd2 0-0 16.Bg5 (16.Na4 Na5=) 16...Bg5 17.Qg5 Qg5 18.Ng5 Nce5 19.Bb3 h6 20.Nf3 Nf3 21.gf3 Bc6 22.Rbc1 (22.f4 Rb6+=) 22...Rb7 23.Kh2 Ne5 24.Kg2 ½–½. Hacklinger,Dilan – Mueller,Sophie, Oberhof GER, Ch U14 (g), 2013. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 Bb7 6.Rb1 Qc8 7.Bc4 e6 8.0-0 Nge7 9.d3 Ng6 10.h4 Nge5 11.Ne5 Ne5 12.Bf4 d6 (better is 12...Nc4 13.dc4 a6=) 13.Be5+/- de5 14.Qh5 Bd6 15.Be6! Qe6 16.Rb7 0-0 17.Qf5 Qh6 18.Rd7 Bb8 (18...Rad8!?+/-) 19.Nd5+- Bd6 20.Rb1 c4 21.Rbb7 Bc5? (better is 21...cd3 22.cd3 Rab8+-) 22.Rf7 Rf7 23.Qf7 (23.Rf7?! cd3 24.cd3 Rb8+-) 23...Kh8 24.Ne7 (24.dc4 Rf8 25.Qf8 Bf8 26.Ra7 Kg8-+) 24...cd3 25.cd3 Qh4 (25...a6+-) 26.Ng6! (26.Ng6 hg6 27.Qg7) 1–0. Janev,P (2045) – Gurvich,Vitaly (1855), Varna BUL, 6th Open, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 d6 6.Bc4 Nf6 7.0-0 Bg4 8.h3 Bh5 9.Bb5 Qc8 10.e5 (10.Rb1!?+=) 10...de5= 11.Ne5 Bd1 12.Rd1 Kd8 (12...e6 13.Bc6 Ke7+=) 13.Nc6 (better 13.Nf7!? Kc7 14.Nh8=) 13...Kc7=+ 14.d4 e6 15.dc5 Nd7?? (better 15...e5 16.Ne5 Bc5+=) 16.Nd5! ed5 17.Bf4 Ne5 18.Be5 (18.Ne5?! g5 19.Bh2 Bc5 20.Nf7 Kb6+-) 18...Kd7 19.Na7 Ke6 20.Nc8 Ke5 (20...Rc8 21.Re1 f6 22.Bd6 Kf7 23.Rad1+-) 21.Nb6 Ra5 (21...Rd8 22.Re1 Kf5+-) 22.Rd5 Ke6 (22...Kf6 23.Nd7 Kg6 24.Ne5 Kg5 25.h4 Kf5+-) 23.Re1 Kf6 24.Nd7 Kg6 25.Ne5 Kf6 (25...Kg5 26.h4! Kh5 27.Nf7 Kg6 28.Bd3 Kf7 29.Rf5 Kg8 30.Bc4) 26.Ng4 Kg6 27.Bd3 (27.Re6 fe6 28.Be8) 27...f5 28.Rf5 (28.Rf5 Be7 29.Rfe5 Kf7 30.Re7 Kf8 31.Re8 Kf7 32.R1e7) 1–0. Ossa,Orlando (2250) – Soto,Hoover (1665), Cali Colombia, Regional Championship, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 d6 6.Bc4 Nf6 7.Bd5 Nd5= 8.ed5 Ne5 9.Ne5+= de5 10.Qe2 f6 11.0-0 Bb7 12.Rb1 Bd5= 13.Qb5 Kf7 14.Qc5 e6 15.Qe3 Be7 16.Nd5 Qd5= 17.Ba3 Rhc8 18.Rb2 Rc7 19.Be7+= Ke7 20.Rfb1 Rac8 21.h3 Rc2?? 22.Rb7?? Kf8 23.Qa7+/- (23.Qa7 Qd6 24.Rf7 Ke8 25.Rg7+-) 1–0. Ball,E – Nixon,P, USA–ch amat North (1), 1994.

5.Nf3 e5 6.Rb1 Nf6 7.Bc4 Be7 8.0-0 d6 9.d3 0-0 10.Nd5 Nd5 11.Bd5 Bd7 12.Be3 a5 13.c3 Bf6 14.d4 Rc8 (14...cd4!? 15.cd4 Rc8+=) 15.dc5+- dc5 16.Qe2 (16.Bc5 Ne7 17.Bb6 Qe8+-) 16...Qe7 (16...Ne7 17.Rfd1+-) 17.Qa6 Ra8 (17...Rfd8 18.Rb7+-) 18.Qc4+- h6?? (better 18...Rfb8+-) 19.Bc5 (19.Qc5?! Rac8+-) 19...Qe8 20.Rfd1 (20.Bf8 Kf8 21.Rb7 Rc8 22.Bf7 Qf7 23.Qf7 Kf7 24.Rd7 Ne7+-) 20...Be7 (20...Rb8 21.Rb8 Nb8 22.Bf8 Kf8 23.Qc7+-) 21.Be7 Qe7 22.Bc6 Bc6 23.Qc6 Rfc8 (23...Rac8 24.Qd5 Rc3 25.Ne5+- (worse 25.Qe5 Qe5 26.Ne5 Re8+-)) 24.Rb7 (24.Qd5 Re8+-) 24...Rc6 25.Re7 Rc3 26.h4 Rc2 27.Rdd7 1–0. marekt – delightful_porridge, ChessWorld.net, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 e6 6.Rb1 Nge7 7.Bb5 Rb8 8.0-0 Qc7 9.Re1 a6 10.Bc6 (10.Bc4 Rb1 11.Nb1 Bb7+=) 10...Nc6= 11.Bb2 f6 12.Nh4 Ne5 13.f4 Nf7 14.e5 (14.Qg4 c4=) 14...f5 (14...fe5 15.fe5 Be7 16.Nf3=+) 15.Kh1 Qc6 16.d4 cd4 17.Ne2 Bc5 18.Bd4 Rb1 19.Qb1 Be7 20.Nf3 0-0 21.Qb3 Bb7 22.Rb1 Ba8 23.c3 Qe4 24.Qb2?? (24.Rb2 Bc6=) 24...g5?? (24...Ba3! 25.Qa3 Qb1 26.Neg1 Bf3 27.gf3-+) 25.fg5?? (25.Re1 g4 26.Rg1 Bd5=+) 25...Ng5 (better 25...Ba3! 26.Qa3 Qb1 27.Neg1 Bf3 28.gf3 Ng5-+) 26.Ng3 (26.Rg1 Qb7 27.Qb3 Nf3 28.gf3 Kf7=+) 26...Qg4 27.Ng5 Bg5 28.Qe2 Bd5 29.Rb6 (29.Qg4 fg4 30.a3 Bh4=+) 29...Qf4 (29...Qe2!? 30.Ne2 Ba2-/+) 30.Kg1 (30.Qa6 Ra8 31.Qe2 Qc1 32.Qf1 Ra2 33.Qc1 Bc1-+ (worse 33...Bg2 34.Kg1 Bc1 35.Nh5-/+)) 30...Qc1 31.Qf1 (31.Nf1!?=) 31...Be3-/+ 32.Kh1 f4 (better 32...Qd2 33.Be3 Qe3-+) 33.Qc1+= Bc1 34.Nh5 Kf7 (34...f3!? 35.Kg1 fg2 36.Nf6 Rf6 37.ef6 e5=) 35.Kg1 (better 35.Nf6 Bc4 36.Nh7+/-) 35…Rg8 (35...Rg8 36.g3 fg3 (worse 36...Ba2 37.Ra6 Bc4 38.Ra7+/-) 37.Ng3 h5=+). Delaney,K (2310) - Svidler,P (2720), Titled Tue, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 e6 6.Bc4 Rb8 7.0-0 Nge7 8.Re1 Ng6 9.d4 cd4 10.Nd4 Nce5 11.Bf1 Bb4 12.Bd2 (12.Rb1 Qh4 13.g3 Qf6+=) 12...Bc5 (12...Qh4!? 13.g3 Qf6+=) 13.Be3+= Bb6 14.f4 Ba5 (14...Nc6 15.f5 Nge5 16.Ncb5=) 15.Bd2 (better 15.Ndb5!? Nc6 16.Nd6 Kf8 17.Qd2+/-) 15...Nc6 16.Nc6 (better 16.Ncb5!?=) 16...dc6-/+ 17.Bd3?? (better 17.Rb1 Rb6 18.f5 Qd4 19.Be3 Qc3 20.Bb6 Bb6 21.Rb6 ab6 22.fg6 hg6 23.Re2-/+) 17...Qd4-+ 18.Kh1 Bc3 19.Be3 (19.Bc3 Qc3 20.Qf3 e5-+) 19...Qa4 (19...Ba1?! 20.Bd4 Bd4 21.e5-+) 20.Rb1 (20.Rf1 Ba1 21.Qa1 f6-+) 20…Rb1 (20...Rb1 21.Qb1 Be1 22.Qe1 Qa2-+) 0-1. Beerdsen,Thomas (2475) - Pushkarev,D (2375), Titled Tuesday, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 Nf6 6.Bb5 e6 7.e5 Nd5 8.Nd5 ed5 9.0-0 Be7 10.d4 c4 11.Bd2 0-0 12.Rb1 Rb8 13.c3 Qa5 14.Qa4 Qc7 15.Bg5 Bg5 16.Ng5 h6 17.Nf3 a6 18.Bc6 Rb1 19.Rb1 dc6 20.h3 Bf5 21.Rb2 a5 22.Qa3 Rc8 23.Qc5 a4 24.Rb4 Bc2 25.Nh2 Rb8 26.Nf1 Rb4 ½–½. Shutov,Andry (1765) – Weggen,Rick (1710), IECG, 2005.

5.f4 Rb8 6.Ba3 e6 7.e5+=.

5.f4 Rb8 6.Be2 =.

5.f4 g6 6.Rb1 Bh6 7.g3 Bf8 =.

5.f4 g6 6.Bc4 Bg7 7.Rb1 e6 Secures d5 8.Ba3 (8.Nb5 f6=) 8...d6 Covers c5 (8...Bc3 9.dc3 Qa5 10.Bb2+=) 9.Nf3 (9.Qf3 Nd4 10.Qd3 h5=) 9...Nge7 (9...a6 10.Ne2=) 10.0-0 0-0 11.Be2 Bd7 (11...Qa5 12.Qc1=) 12.e5 White threatens to win material: e5xd6 (12.Nb5 Be8=) 12...Qa5 (12...de5 13.Qc1=) 13.ed6= Qa3 14.de7 Ne7 Black has the pair of bishops 15.Rb7 Rad8 16.Qe1 (16.Ne5 Be5 17.fe5 Nf5=) 16...Nf5 (16...Bc3 17.dc3 Nf5 18.Ne5=) 17.Ne5= Bc8?? not a good decision, because now the opponent is right back in the game (better is 17...Be5 the only rescuing move 18.fe5 Bc6=) 18.Rb3+- Qa5 19.Nc6 Qc7 20.Nd8 Rd8 21.Nb5 Qe7 22.Bg4 c4 23.Rb1 Qd7 24.d4?? there were better ways to keep up the pressure 24...Bd4 25.Nd4 Qd4 26.Qf2 Ne3= 27.Rfd1 White threatens to win material: Rd1xd4 27...Nd1-/+ 28.Qd4 Rd4 29.Rb8?? Rd8-+ 30.Bf3 Ne3 (30...Ne3 31.Bb7 Nc2-+) 0–1. Juhnke,Peter – Solonar,Stefan (2325), Hungen op, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.f4 g6 6.Nf3 Bg7 7.Rb1 Nh6 (7...Nf6 8.Bc4 0-0 9.e5+=) 8.Bc4 a6 9.0-0 Rb8 10.Rb8 Nb8 11.Qe1 e6 (11...Nc6 12.Bb2+/-) 12.Kh1 (12.e5!?+/-) 12...Nc6 13.a3 (13.Bb2 0-0+=) 13...Bb7= 14.d3 (14.e5 Nf5=) 14...Nd4 15.Nd4 cd4 16.Ne2 d5 17.ed5 Bd5 18.Bd5 Qd5 19.Qb4 Nf5 20.Ng3 (20.Bd2 Kd7 21.c4 dc3 22.Bc3 Bc3 (22...Qd3 23.Qb7 Kd8 24.Bg7 Ng7 25.Rc1+-) 23.Nc3 Qd6+= (23...Qd3 24.Rd1 Qd1 25.Nd1+-)) 20...Ng3+= 21.hg3 Kd7 22.Bd2 Rc8 23.Rb1 Qc6 24.Rb2 h5 25.Kg1 Bf6 26.Qa5 Ke8 27.Be1 Kf8 28.Bf2 Kg8 29.a4 Kg7 30.Qb4 Qd5 (30...Rd8 31.a5-/+) 31.Kf1 (31.Qb6 Rc6 32.Qa7 e5+=) 31...Rd8 (31...Rc6 32.Qb7+=) 32.Qb7+= Qf5 (32...Qb7 33.Rb7 Rc8 34.Rb2+=) 33.Qa6= h4 34.Qb7 hg3 35.Bg3 Qh5 36.Rb1 Rd5 37.Kg1 Qg4+= 38.Bh2 Bh4 39.Rf1 Qe2 40.Qb1?? Qe3-+ 41.Kh1 Bf2 42.Qa1 Rh5 43.Rf2 Qf2 44.a5 Qf4 (44...Qf4 45.Qg1 g5-+) 0–1. Schultz_Pedersen,Jesper (2235) – Svedberg,Hans (1995), Helsingor DEN, Politiken Cup, 2014. (=1.e4 c5 2.b4?? b6?? 3.bc5+= bc5 4.Nc3 Nc6)

5.f4 g6 6.Nf3 Bg7 7.e5 Nh6 8.Bc4 Rb8 9.0-0 0-0 10.Ng5 e6 11.Nge4 d5 12.ed6 f5 13.Ng5 Qd6 14.Kh1 Rb4 15.Bb3 Nd4 16.Ba4 (16.Ba3 Nb3 17.ab3 Rf4 18.Rf4 Qf4+=) 16...Bb7 17.Rb1 Rb1 18.Nb1 Ng4 19.Nc3 h6 20.Nh3 Ba8 21.Qe1 Qa6 22.Ba3 Rc8 23.Ng1 Kh7 24.h3 Nf6 25.Nf3? (better is 25.Nge2-+) 25...Nf3 26.gf3 Nh5 27.Bb5 Qa3 28.Qe6 Rb8 29.Kh2 Qb4 30.Bc4 Qb6 31.Qf7 Qd6 32.Rb1 Qf4 33.Kg1 Rf8 34.Nd5 Qg3 35.Kf1 Rf7 (35...Rf7 36.Ne3 Qf3 37.Kg1 Bd4 38.Rb7 Be3 39.de3 Qe3 40.Kf1 Bb7 41.Bd5 Bd5 42.c4 Ng3) 0–1. Locci,D (2175) – Piasetski,L (2295), MP Reykjavik Open, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Rb1 e6

6.Nf3 Nge7 7.Ba3 Ng6 8.Bb5 Qa5 9.Qc1 Nb4 10.Rb3 Be7 11.0-0 a6 12.Bc4 Nc6 13.Re1 0-0 14.Nd1 Qc7 15.Bf1 d6 16.Bb2 Re8 17.Ne3 Bd7 18.Bc3 a5 19.Qb2 a4 20.Rb7 Qc8 21.a3 Bf8 22.Rb1 Nd8 23.Rb8 Qc6 24.Ra8 Qa8 25.d3 d5 26.ed5 ed5 27.d4 Ne6 28.dc5 Nc5 29.Bb4 Nf4 30.Qd4 Nfe6 31.Qd1 Bc6 32.Nf5 g6 33.N5d4 Bg7?? 34.Bc5+- Nc5 35.Nc6 Ne4 36.Qd5 Kh8 37.Ne7 Nc3 38.Qa8 Ra8 39.Rb7 Bf8 40.Ne5 Kg7 41.Nf7! Nb1 42.Nd5 Na3 43.Ng5 Kh6 44.h4 Bg7 45.Nf7 Kh5 46.Be2 Kh4 47.g3 Kh3 48.Ng5 1–0. Zajarnyi,A (2260) – Kozel,R (2415), 2nd Geller Mem Open–A (6), 2006.

6.g3 Nge7 7.Bg2 Ba6 8.d3 Rb8 9.Bf4 Rb1= 10.Qb1 Nd4 11.Nge2 Nec6 12.0-0 Be7 13.Nd4 cd4 14.Nb5 e5 15.Bd2 Qb6 16.a4 0-0 17.Bh3 Bc8 18.Qa2 a6 19.Na3 Qc5 20.Ra1 d6 ½–½. Rusan,P (2275) – Ionescu,Co (2435), TCh–ROU Superliga (5), 2007.

6.Bc4 Nf6

7.Nf3 d6

8.0-0 a6 A) 9.Re1 Qd7 (9...Qc7 10.d3 Na5 11.Bb3 Nb3 12.ab3 Be7 13.Bd2 0-0 14.Ra1 e5= 0.19; 9...Be7 10.d4 cd4 11.Nd4 Ne5 12.Be2 Qc7 13.Rb3 Bb7 14.Bg5 0-0= 0.06; 9...Qa5 10.a3 Be7 11.Qe2 0-0 12.Bb2 Rb8 13.Qd3 Nd7 14.Ne2 Bb7+= 0.31) 10.Bb2 Rb8 11.a3 Nd4 12.Na2 Qa4 13.Bb3 Nb3 14.Nc3 Qd7= 0.03; B) 9.Bb2 Bb7 (9...Nd4 10.Re1 Rb8 11.Ba1 Rb1 12.Nb1 Qb6 13.d3 Be7 14.Nd4 cd4+= 0.34; 9...Rb8 10.Qe2 Nd4 11.Qd3 Nf3 12.Qf3 Be7 13.Qd3 Rb6 14.Ba1 Bb7+= 0.37; 9...Be7 10.Re1 0-0 11.e5 de5 12.Ne5 Ne5 13.Re5 Bd6 14.Re1 Qc7= –0.03) 10.d3 Be7 11.Ne2 Na5 12.Nf4 Qd7 13.Nd2 0-0 14.Qf3 e5= –0.06; C) 9.Be2 Qc7 (9...Be7 10.d4 Qa5 11.Rb3 0-0 12.d5 Ne5 13.Ne5 de5 14.Bc4 ed5+= 0.41; 9...Nd4 10.Re1 Be7 11.Bc4 0-0 12.d3 Bd7 13.Nd4 cd4 14.Ne2 e5= 0.22; 9...d5 10.ed5 ed5 11.Re1 Be7 12.d4 Ne4 13.Na4 cd4 14.Nd4 Bh4= 0.06) 10.Re1 Be7 11.Bb2 0-0 12.a3 d5 13.ed5 ed5 14.Na4 Rb8= 0.00; D) 9.d4 cd4 (9...Qa5 10.Bb2 Rb8 11.Bb3 c4 12.Ba4 Bd7 13.Qe1 Be7 14.d5 ed5+= 0.56) 10.Nd4 Qc7 11.Nc6 Qc6 12.Qe2 Be7 13.Bg5 0-0 14.Rb3 Bb7+= 0.28.

8.0-0 Nd4 A) 9.Re1 Bd7 (9...Be7 10.a3 0-0 11.Bb2 Bb7 12.d3 e5 13.Na2 Bc8 14.Nd4 cd4+= 0.37; 9...a6 10.Bb2 Rb8 11.Ba1 Rb1 12.Nb1 Qb6 13.d3 Be7 14.Nd4 cd4+= 0.34; 9...Nd7 10.Nd4 cd4 11.Ne2 Qc7 12.d3 e5 13.c3 dc3 14.Nc3 Be7+/- 1.16) 10.d3 Rb8 11.Bg5 Be7 12.Nd4 Rb1 13.Qb1 cd4 14.Ne2 h6+= 0.28; B) 9.Bb2 Rb8 (9...Be7 10.a3 0-0 11.Re1 Bb7 12.d3 e5 13.Nb5 Nb5 14.Bb5 Rb8= 0.00; 9...a6 10.a3 Rb8 11.Re1 Be7 12.Na2 Qc7 13.Nd4 cd4 14.Bb3 e5= 0.22; 9...Bd7 10.e5 de5 11.Ne5 Bd6 12.Nd7 Nd7 13.Nb5 Nb5 14.Bb5 0-0= 0.25) 10.a3 Be7 11.Nd4 cd4 12.Nb5 e5 13.Qe2 Qd7 14.Ba1 0-0+= –0.41; C) 9.d3 Be7 (9...a6 10.Nd4 cd4 11.Ne2 e5 12.f4 Bg4 13.h3 Be6 14.c3 dc3+/- 0.75; 9...Bd7 10.Be3 Nf3 11.Qf3 Be7 12.Rb7 Rb8 13.Rb8 Qb8 14.Rb1 Qa8+/- 0.72; 9...h6 10.Be3 Nc6 11.Re1 Be7 12.e5 Ng4 13.ed6 Bd6 14.Bd2 0-0+/- 0.72) 10.Nd4 cd4 11.Ne2 e5 12.c3 dc3 13.Nc3 0-0 14.Be3 Bg4+= 0.66.

8.0-0 Bd7 A) 9.Re1 Rb8 (9...Be7 10.d4 Qa5 11.Bd2 Nd4 12.Nb5 Qd8 13.Nbd4 cd4 14.Nd4 0-0+= 0.31; 9...Nd4 10.d3 Rb8 11.Be3 Rb1 12.Nb1 Nf3 13.Qf3 Be7 14.Nc3 0-0+= 0.50; 9...Na5 10.Be2 Rb8 11.Bb2 e5 12.a4 Be7 13.Bb5 Nc6 14.Bc1 0-0= 0.03) 10.Bb2 Be7 11.e5 de5 12.Ne5 Ne5 13.Re5 Rb4 14.Bb3 Qb8+= –0.41; B) 9.Bb2 Rb8 (9...Be7 10.Re1 Rb8 11.Qe2 e5 12.a3 0-0 13.Nd5 Be6 14.Qd3 Na5+= 0.31; 9...Nd4 10.Re1 Be7 11.Nd4 cd4 12.Nb5 e5 13.c3 dc3 14.dc3 Rc8+= 0.37; 9...Rc8 10.Re1 Rb8 11.Nb5 Be7 12.Bf6 gf6 13.Qe2 Rg8 14.c3 Rb6+= 0.47) 10.a3 Be7 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 c4= 0.06; C) 9.a3 Be7 (9...Rb8 10.Bb2 Be7 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Ne4 10.Ne4 d5 11.Qe2 de4 12.Qe4 Bd6 13.d3 Rb8 14.Bb2 0-0+= 0.44; 9...Nd4 10.d3 Rb8 11.Rb8 Qb8 12.Re1 Qc7 13.Nd4 cd4 14.Ne2 Ne4+= 0.31) 10.Bb2 Rb8 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 e5 14.Rfe1 Qc7= 0.00; D) 9.d4 Qa5 (9...cd4 10.Nd4 Qa5 11.Bb2 Rb8 12.Bb5 Qc7 13.Ba1 Nd4 14.Bd7 Nd7+= 0.41; 9...Nd4 10.Nd4 cd4 11.Qd4 Qc7 12.Ba6 d5 13.ed5 Bd6 14.Nb5 Bb5+/- 1.22) 10.Rb3 cd4 11.Nd4 Qc5 12.Nc6 Qc4 13.Nd4 e5 14.Nf5 Qc6= 0.09.

8.0-0 Be7 9.Re1 (9.d4 Nd4 (9...cd4 10.Nd4 Bd7 11.Ndb5 Rc8 12.Be2 Qa5 13.Rb3 d5 14.ed5 ed5+= 0.53; 9...Qa5 10.Bb5 Bd7 11.d5 ed5 12.Nd5 a6 13.Ne7 Ke7 14.Bc4 Qc3+/- 0.94; 9...0-0 10.dc5 dc5 11.e5 Nd7 12.Qe2 Nb6 13.Rd1 Qe8 14.Bd3 Nb4+/- 0.81) 10.Nd4 cd4 11.Qd4 0-0 12.Rd1 Qc7 13.Nb5 Qc6 14.Bg5 h6+= 0.47; 9.d3 0-0 (9...a6 10.Bf4 0-0 11.e5 d5 12.Bb3 Nd7 13.Ba4 Qc7 14.Bc6 Qc6= 0.03; 9...Bd7 10.Bf4 0-0 11.e5 Nh5 12.ed6 Nf4 13.de7 Ne7 14.Ne5 Qc7+= 0.41; 9...Qc7 10.Bf4 0-0 11.Re1 e5 12.Bg5 Be6 13.Be6 fe6 14.a4 a6= –0.09) 10.Bf4 a6 11.e5 d5 12.ef6 Bf6 13.Ne4 dc4 14.Bd6 Be7= –0.22; 9.Bb5 Bd7 (9...Bb7 10.Ba4 Qd7 11.e5 Ng4 12.d4 de5 13.d5 ed5 14.Qd5 0-0-0+/- 1.12; 9...Qc7 10.e5 Nd7 11.ed6 Bd6 12.Ne4 0-0 13.Nd6 Qd6 14.Bb2 Rb8+= 0.28) 10.d4 a6 11.Bc6 Bc6 12.d5 Bb5 13.Nb5 ab5 14.de6 fe6= 0.09; 9.Qe2 Bd7 (9...a6 10.Re1 Nd4 11.Nd4 cd4 12.Nd1 d5 13.ed5 Nd5 14.Bb2 Nb6= 0.25; 9...Qd7 10.Nd5 0-0 11.Ne7 Qe7 12.d3 e5 13.c3 Be6 14.Bb5 Rab8+= 0.34; 9...0-0 10.Re1 a6 11.a4 Re8 12.e5 de5 13.Ne5 Ne5 14.Qe5 Qd4= 0.09) 10.Bb2 0-0 11.a3 Rb8 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06) 9...0-0 (9...a6 10.d4 cd4 11.Nd4 Ne5 12.Bb3 Qc7 13.Bd2 0-0 14.Ba4 Bb7= –0.22; 9...Bd7 10.Bb2 Rb8 11.Qe2 e5 12.a3 0-0 13.Qd3 Be6 14.Nd5 Na5+= 0.31; 9...Nd4 10.d3 0-0 11.e5 de5 12.Ne5 Nd5 13.Ne2 Nb6 14.c3 Nc4= 0.25) 10.d3 (10.a3 a6 11.Be2 d5 12.ed5 ed5 13.d4 Re8 14.dc5 Bc5= 0.03) 10...a6 11.e5 (11.Bg5 h6 12.Bh4 Qc7 13.Na4 Rb8 14.Rb8 Qb8= 0.12) 11...de5 12.Bd2 (12.Ne5 Ne5 13.Re5 Bd6 14.Re3 Qc7= –0.03) 12...Qc7 13.Na4 (13.Qe2 Bb7 14.Ne5 Ne5-/+ –0.81) 13...Nd7 (13...Bb7 14.Nc3 Rab8-/+ –0.84) 14.Ng5 (14.Bg5 Bb7+= –0.53) 14...h6 (14...Bb7+= –0.59) 15.Nf7 Rf7 16.Be6 Nd8 17.Bf7 Nf7 18.Qf3 Ra7 19.Nc3 Nf6 20.Nd5 Nd5 21.Qd5 Bd6 22.Re3 Qe7 23.Ba5 Be6 24.Qc6 Ba2 25.Rb6 Be6 26.Ra6 Ra6 27.Qa6 Qd7 28.Bc3 Bd5 29.Qa1 Qg4 30.Rg3 Qe2 31.f4 Qc2 32.Qe1-/+ Bc7 33.h4 Be6 34.Qa1 Kh7 35.h5? Qe2 36.Qa7 Bd6 37.Qb7 Qd1 38.Kh2 Qh5 39.Kg1 Qd1 40.Kh2 Qh5 41.Kg1 Qf5 42.fe5 Be5 43.Be5 Qe5 44.Qe4 Bf5 45.Qe3 Qe3 46.Re3 Kg6 0–1. Bach,Mat (2275) – Andersson,U (2565), 14th OIBM Bad Wiessee GER, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

8.a3 A) 8...Bd7 A1) 9.Bb2 Nd4 (9...Rb8 10.0-0 Be7 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 e5 14.Rfe1 Qc7= 0.00; 9...Be7 10.0-0 0-0 11.Qe2 Rb8 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Na5 10.Be2 Bc6 11.d3 Rb8 12.0-0 Be7 13.e5 Ng4 14.ed6 Bf6+= 0.28) 10.0-0 Be7 11.Re1 0-0 12.h3 Qc7 13.a4 Rab8 14.e5 Nf3= –0.22; A2) 9.d3 Be7 (9...a6 10.Bb2 Be7 11.0-0 0-0 12.Re1 Qc7 13.Qd2 Nd4 14.Nd4 cd4= 0.25; 9...Rb8 10.Rb8 Qb8 11.0-0 Be7 12.Bb5 0-0 13.Re1 Qb6 14.Bg5 Qa5= –0.09; 9...Nd4 10.0-0 Rb8 11.Rb8 Qb8 12.Re1 Qc7 13.Nd4 cd4 14.Ne2 Ne4+= 0.31) 10.0-0 0-0 11.Re1 Rb8 12.Rb8 Qb8 13.Qd2 Qb6 14.e5 de5= –0.09; A3) 9.0-0 Rb8 (9...Be7 10.Bb2 Rb8 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Ne4 10.Ne4 d5 11.Qe2 de4 12.Qe4 Bd6 13.d3 Rb8 14.Bb2 0-0+= 0.44; 9...Nd4 10.d3 Rb8 11.Rb8 Qb8 12.Re1 Qc7 13.Nd4 cd4 14.Ne2 Ne4+= 0.31) 10.Rb8 Qb8 11.d3 Be7 12.d4 cd4 13.Nd4 0-0 14.Be3 Ne5= –0.03; A4) 9.Qe2 Rb8 (9...Be7 10.0-0 0-0 11.Bb2 Rb8 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Nd4 10.Qd3 Ng4 11.0-0 Nf3 12.Qf3 Ne5 13.Qe2 Nc4 14.Qc4 Be7= 0.19; 9...a5 10.0-0 Be7 11.Bb2 0-0 12.Qd3 e5 13.Nd5 Nd5 14.Bd5 Qc7+= 0.34) 10.Bb2 Be7 11.0-0 0-0 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; B) 8...Nd4 B1) 9.Bb2 Rb8 (9...Be7 10.Nb5 Nb5 11.Bb5 Bd7 12.Bd7 Qd7 13.e5 Nd5 14.0-0 0-0= 0.09; 9...Bd7 10.0-0 Be7 11.h3 0-0 12.Re1 Qc7 13.a4 Rab8 14.e5 Nf3= –0.22; 9...a6 10.0-0 Rb8 11.d3 d5 12.ed5 ed5 13.Ba2 Ne6 14.Bb3 d4= 0.25) 10.0-0 Be7 11.Nd4 cd4 12.Nb5 e5 13.Qe2 Qd7 14.Ba1 0-0= –0.22; B2) 9.Rb2 Be7 (9...Bd7 10.0-0 Be7 11.d3 0-0 12.Rb1 a6 13.Nd4 cd4 14.Ne2 d5= 0.19; 9...a6 10.0-0 Be7 11.Re1 d5 12.ed5 ed5 13.Be2 0-0 14.Nd4 cd4= 0.06; 9...Nd7 10.0-0 Nb6 11.Bd3 Nf3 12.Qf3 c4 13.Be2 d5 14.ed5 Ba3+= 0.41) 10.0-0 0-0 11.Re1 Qc7 12.d3 Bd7 13.e5 de5 14.Ne5 Rab8= 0.00; B3) 9.h3 Bd7 (9...Be7 10.0-0 0-0 11.Re1 Nd7 12.Nd4 cd4 13.Ne2 Bf6 14.Bb2 Qc7= 0.00; 9...a6 10.0-0 Be7 11.e5 de5 12.Ne5 Bd6 13.f4 0-0 14.d3 Qc7= –0.19; 9...a5 10.d3 Be7 11.Be3 Nf3 12.Qf3 Ba6 13.Ba6 Ra6 14.0-0 Nd7+= 0.50) 10.Bb2 Be7 11.0-0 0-0 12.Re1 Qc7 13.a4 Rab8 14.e5 Nf3= –0.22; B4) 9.0-0 Bd7 (9...a6 10.d3 d5 11.ed5 ed5 12.Ba2 Bg4 13.Qe1 Be7 14.Nd4 cd4+= 0.53; 9...Be7 10.Re1 0-0 11.Bb2 Bb7 12.d3 e5 13.Na2 Bc8 14.Nd4 cd4+= 0.37; 9...Nd7 10.Nd4 cd4 11.Ne2 Qh4 12.d3 e5 13.c3 dc3 14.Bd5 Rb8+- 1.53) 10.d3 Rb8 11.Rb8 Qb8 12.Re1 Qc7 13.Nd4 cd4 14.Ne2 Ne4+= 0.31; C) 8...Be7 C1) 9.Bb2 a6 (9...Rb8 10.Qe2 0-0 11.Qd3 Na5 12.Ba2 Rb6 13.Na4 Ba6 14.c4 Rb7= –0.25; 9...Bb7 10.0-0 0-0 11.Qe2 d5 12.ed5 ed5 13.Ba6 Rb8 14.Rfe1 c4= –0.19; 9...0-0 10.0-0 d5 11.ed5 ed5 12.Bb5 Bd7 13.d4 Nd4 14.Nd4 cd4= 0.19) 10.0-0 d5 11.Bb3 d4 12.Na2 Ne4 13.Ba4 Bd7 14.Qe2 Ng5-/+ –0.75; C2) 9.0-0 0-0 (9...a6 10.d4 d5 11.ed5 ed5 12.Bb3 c4 13.Ba4 Bd7 14.Ne5 Rc8+/- 0.84; 9...Bd7 10.Bb2 0-0 11.Qe2 Rb8 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Nd4 10.Re1 0-0 11.Bb2 Bb7 12.d3 e5 13.Na2 Bc8 14.Nd4 cd4+= 0.37) 10.Re1 a6 11.Be2 d5 12.ed5 ed5 13.d3 Re8 14.Bf4 Bd6= –0.22; C3) 9.d3 0-0 (9...Qa5 10.Qd2 a6 11.h3 0-0 12.0-0 Bd7 13.Qe1 Qc7 14.Qe3 Na5= 0.09; 9...a6 10.0-0 0-0 11.Re1 d5 12.Bb3 d4 13.Ne2 Rb8 14.Bf4 Rb6= 0.09; 9...d5 10.Bb5 Bd7 11.e5 Ng4 12.Bc6 Bc6 13.h3 d4 14.Ne4 f5= 0.19) 10.0-0 a6 11.Bb3 Rb8 12.Re1 Qa5 13.Qd2 Re8 14.Na2 Bd7= –0.09; C4) 9.Bb5 Qc7 (9...Bd7 10.0-0 0-0 11.d4 cd4 12.Nd4 Nd4 13.Qd4 Rb8 14.a4 a6= 0.12; 9...Bb7 10.d4 0-0 11.d5 ed5 12.ed5 Ne5 13.0-0 a6 14.Ba4 Rb8+= 0.31; 9...Qd7 10.e5 Ng4 11.ed6 Bd6 12.Ne4 0-0 13.d4 Be7 14.Nc5 Bc5+= 0.69) 10.d4 cd4 11.Nd4 Bd7 12.Be3 0-0 13.0-0 a6 14.Bc6 Bc6= 0.00; D) 8...a6 D1) 9.Bb3 Qc7 (9...Be7 10.0-0 0-0 11.Ba4 Qc7 12.Re1 e5 13.Nd5 Nd5 14.ed5 Rb8= 0.03) 10.0-0 Be7 11.Bb2 0-0 12.d4 cd4 13.Nd4 Nd4 14.Qd4 Bb7= –0.06; D2) 9.Qe2 Be7 (9...Nd4 10.Nd4 cd4 11.Na2 Qc7 12.d3 Be7 13.Bb2 Rb8 14.0-0 d5+= 0.34) 10.0-0 d5 11.Ba2 0-0 12.e5 Nd7 13.Re1 Qc7 14.Bb3 Bb7+= –0.28; D3) 9.d3 d5 (9...Qa5 10.Qd2 Be7 11.h3 0-0 12.0-0 Bd7 13.Qe1 Qc7 14.Qe3 Na5= 0.09; 9...Be7 10.0-0 0-0 11.Bb3 Rb8 12.Re1 Qa5 13.Qd2 Re8 14.Na2 Bd7= –0.09; 9...Na5 10.Ba2 Be7 11.0-0 0-0 12.Re1 Bb7 13.Bf4 Rb8 14.Qd2 Nc6= 0.19) 10.Bb3 d4 11.e5 Ng4 12.Ba4 Bd7 13.Bc6 Bc6 14.Ne4 Rb8= –0.16; D4) 9.0-0 Qc7 (9...Ne4 10.Ne4 d5 11.Qe2 dc4 12.Qc4 Qd5 13.Qe2 Be7 14.Bb2 0-0= 0.19; 9...Be7 10.d4 d5 11.ed5 ed5 12.Bb3 c4 13.Ba4 Bd7 14.Ne5 Rc8+/- 0.84; 9...Qd7 10.d4 cd4 11.Nd4 Ne4 12.Ne4 d5 13.Bb3 Bb7 14.Ba4 Rc8+- 2.37) 10.Bb2 Be7 11.Qe2 0-0 12.Rfe1 Bb7 13.Qe3 Rfb8 14.Qd3 Na5= –0.03.

8.Bb2 A) 8...Be7 A1) 9.d4 0-0 (9...cd4 10.Nd4 Bb7 11.Ba1 Nd4 12.Rb7 Nc6 13.Bb5 Qc8 14.Ba6 Qd8+= 0.59; 9...Nd4 10.Nd4 cd4 11.Qd4 Qc7 12.0-0 Bd7 13.Rfd1 Rb8 14.Qd3 0-0= 0.09; 9...Rb8 10.d5 ed5 11.Nd5 Ne4 12.Bg7 Rb1 13.Qb1 Rg8 14.c3 Bf5+= 0.50) 10.0-0 cd4 11.Nd4 Bb7 12.Re1 Rb8 13.Nc6 Bc6 14.Qd3 Qa5= 0.03; A2) 9.0-0 Bb7 (9...Rb8 10.d4 Qa5 11.Qd3 cd4 12.Nd4 Ne5 13.Bb5 Bd7 14.Bd7 Nfd7= 0.00; 9...0-0 10.d4 cd4 11.Nd4 Bb7 12.Re1 Rb8 13.Nc6 Bc6 14.Qd3 Qa5= 0.03; 9...Bd7 10.Re1 Rb8 11.Qe2 e5 12.a3 0-0 13.Qd3 Be6 14.Nd5 Na5+= 0.31) 10.Qe2 0-0 11.Ba1 Rb8 12.Rb2 d5 13.ed5 ed5 14.Ba6 Ba6+= –0.38; A3) 9.a3 a6 (9...Rb8 10.Qe2 0-0 11.Qd3 Na5 12.Ba2 Rb6 13.Na4 Ba6 14.c4 Rb7= –0.25; 9...Bb7 10.0-0 0-0 11.Re1 Rb8 12.d4 cd4 13.Nd4 Qa5 14.Nc6 Bc6= 0.03; 9...0-0 10.0-0 Rb8 11.Qe2 d5 12.ed5 ed5 13.Bb5 Bd7 14.Bc6 Bc6+= –0.28) 10.0-0 d5 11.Bb3 d4 12.Na2 Ne4 13.Ba4 Bd7 14.Re1 Nf6-/+ –0.72; A4) 9.Bb5 Qc7 (9...Bd7 10.0-0 0-0 11.Bc4 Rb8 12.Re1 e5 13.a3 Na5 14.Ba2 Bg4= 0.12; 9...Bb7 10.e5 Ng4 11.ed6 Bd6 12.Ne4 0-0 13.Nfg5 Nh6 14.Nd6 Qd6+/- 1.03) 10.d4 cd4 11.Nd4 Bd7 12.0-0 Rb8 13.Bc6 Bc6 14.Qd3 Qd7= 0.12; B) 8...Nd4 B1) 9.Nb5 e5 (9...Ne4 10.Nbd4 cd4 11.Qe2 Nf6 12.Bd4 a6 13.Rb6 Qc7 14.0-0 Be7+= 0.56; 9...Nc6 10.e5 Ne4 11.d3 a6 12.0-0 ab5 13.Bb5 Qb6 14.a4 d5+/- 1.00; 9...Nf3 10.Qf3 e5 11.0-0 a6 12.Nc3 Qd7 13.Nd5 Nd5 14.Bd5 Rb8+/- 0.84) 10.Nbd4 cd4 11.Ng5 d5 12.ed5 Bd6 13.f4 0-0 14.0-0 Qc7+= 0.34; B2) 9.0-0 Bd7 (9...a6 10.a3 Rb8 11.d3 d5 12.ed5 ed5 13.Ba2 Ne6 14.Bb3 d4= 0.25; 9...Rb8 10.Nd4 cd4 11.Nb5 e5 12.Qe2 a6 13.Na3 d5 14.ed5 Rb2+= 0.28; 9...Be7 10.Nb5 e5 11.Nbd4 cd4 12.c3 dc3 13.dc3 0-0 14.Qd3 Qc7= 0.22) 10.e5 de5 11.Ne5 Bd6 12.Nd7 Qd7 13.Re1 0-0 14.d3 Rfb8= 0.03; B3) 9.Nd4 cd4 10.Nb5 e5 11.Qe2 a6 12.Na3 Qc7 13.0-0 Bb7 14.f4 Be7= 0.12; B4) 9.d3 d5 10.ed5 ed5 11.Nd4 cd4 12.Bb5 Bd7 13.Bd7 Nd7 14.0-0 dc3+/- 0.78; C) 8...Bd7 C1) 9.a3 Rb8 (9...Be7 10.0-0 0-0 11.Qe2 Rb8 12.Qd3 Na5 13.Ba6 Qc7 14.Ba1 e5= 0.06; 9...Nd4 10.0-0 Be7 11.e5 de5 12.Ne5 0-0 13.Re1 Rb8 14.d3 Qc7= 0.22; 9...Ne4 10.Ne4 d5 11.Qe2 dc4 12.Qc4 Na5 13.Qe2 Rb8 14.0-0 Bb5+= 0.56) 10.0-0 Be7 11.Qe2 0-0 12.Qd3 Na5 13.Ba6 Qc7 14.a4 Nc6= –0.16; C2) 9.Qe2 Be7 (9...Rb8 10.0-0 Be7 11.Ba1 Nb4 12.e5 de5 13.d3 0-0 14.Ne5 Bd6+= 0.44; 9...Nd4 10.Nd4 cd4 11.Nb5 e5 12.0-0 a6 13.Na3 Qa5 14.Rfe1 Be7= 0.25; 9...Na5 10.Bb5 Rb8 11.Bd7 Qd7 12.0-0 Be7 13.e5 Ng4 14.ed6 Bd6+= 0.44) 10.0-0 0-0 11.a3 Rb8 12.Qd3 Na5 13.Ba6 e5 14.Rfd1 Qc7= –0.03; C3) 9.d4 cd4 (9...Nd4 10.Nd4 cd4 11.Qd4 Qc7 12.0-0 Rc8 13.Ba6 Rb8 14.Qd3 Qa5+= 0.50; 9...Ne4 10.Ne4 d5 11.Bd5 ed5 12.Nc5 Qa5 13.Kf1 Qa2 14.Nd7 Kd7= 0.00; 9...Rb8 10.d5 ed5 11.ed5 Na5 12.Be2 Be7 13.0-0 0-0 14.Re1 Re8+= 0.37) 10.Nd4 Rb8 11.0-0 Be7 12.Nc6 Bc6 13.Qd3 0-0 14.Rfd1 Qc7= 0.00; C4) 9.0-0 Be7 (9...Rb8 10.Re1 Be7 11.Qe2 e5 12.a3 0-0 13.Qd3 Be6 14.Nd5 Na5+= 0.31; 9...Nd4 10.Re1 Be7 11.Nd4 cd4 12.Nb5 e5 13.c3 dc3 14.dc3 Rc8+= 0.37; 9...Rc8 10.Re1 Rb8 11.Qe2 Be7 12.e5 de5 13.Ne5 Ne5 14.Qe5 Bc6+= 0.31) 10.Re1 0-0 11.Qe2 Rb8 12.a3 e5 13.Qd3 Be6 14.Nd5 Na5+= 0.31; D) 8...Rb8 D1) 9.Qe2 Be7 (9...Bb7 10.Bb5 Be7 11.e5 de5 12.Ne5 Qc7 13.Ne4 a6 14.Nc6 Bc6= 0.06; 9...Bd7 10.0-0 Be7 11.Ba1 Nb4 12.e5 de5 13.d3 0-0 14.Ne5 Bd6+= 0.44; 9...e5 10.0-0 Be7 11.Nd5 0-0 12.c3 Na5 13.Nf6 Bf6 14.Bd5 Be6= 0.19) 10.0-0 0-0 11.Rfe1 e5 12.a3 Nd4 13.Nd4 cd4 14.Nd5 Nd5= 0.00; D2) 9.0-0 Bd7 (9...Ne4 10.Ne4 d5 11.Qe2 dc4 12.Ne5 Ne5 13.Be5 Rb6 14.Rfe1 Bb7= 0.00; 9...Be7 10.d4 Qa5 11.Qd3 cd4 12.Nd4 Ne5 13.Bb5 Bd7 14.Bd7 Nfd7= 0.00; 9...Bb7 10.Bb5 a6 11.Ba4 Qc7 12.Re1 Be7 13.a3 0-0 14.Qe2 Nd4= –0.09) 10.Re1 Be7 11.e5 de5 12.Ne5 Ne5 13.Re5 Rb4 14.Bb3 Qb8+= –0.41; D3) 9.a3 Ne4 (9...Be7 10.0-0 0-0 11.d4 d5 12.ed5 ed5 13.Bb5 Qc7 14.Re1 Bd7= 0.03; 9...Bb7 10.0-0 Be7 11.Qe2 d5 12.ed5 ed5 13.Ba6 0-0 14.Rfe1 c4= –0.19; 9...Qd7 10.0-0 Be7 11.Qe2 0-0 12.Rfe1 d5 13.Bb5 de4 14.Ne5 Nd4= 0.12) 10.Ne4 d5 11.Qe2 dc4 12.Qc4 Qd5 13.Qa4 Bd7 14.Nc3 Nd4-/+ –0.72; D4) 9.a4 Bd7 (9...Bb7 10.0-0 Be7 11.Re1 0-0 12.d4 cd4 13.Nd4 Qa5 14.Nc6 Bc6= 0.06; 9...Qd7 10.0-0 Be7 11.d4 cd4 12.Nd4 0-0 13.Re1 Bb7 14.Bb5 Qc7= 0.09; 9...Be7 10.0-0 0-0 11.Re1 e5 12.Nd5 Nd5 13.Bd5 Nb4 14.Bc4 Be6= 0.06) 10.0-0 Be7 11.Re1 0-0 12.Qe2 e5 13.Bb5 Nd4 14.Nd4 cd4= 0.03.

8.Bb5 A) 8...Bb7 A1) 9.d4 cd4 (9...d5 10.Ba4 Qc7 11.Bf4 Qc8 12.ed5 ed5 13.Qe2 Be7 14.Bd6 0-0+- 2.72; 9...Qa5 10.Bd2 Nd7 11.d5 ed5 12.Nd5 Qd8 13.0-0 Rb8 14.Re1 Be7+- 1.59) 10.Nd4 Rc8 11.0-0 Be7 12.Ba4 Ba8 13.Qf3 0-0 14.Bc6 Bc6+= 0.28; A2) 9.0-0 Qc7 (9...a6 10.Ba4 Qc7 11.d4 cd4 12.Nd4 Rc8 13.Qd3 Kd8 14.Nc6 Bc6+/- 0.78; 9...Be7 10.Ba4 Qd7 11.e5 Ng4 12.d4 de5 13.d5 ed5 14.Qd5 0-0-0+/- 1.12; 9...Rc8 10.d3 Be7 11.Ba4 Ba8 12.Be3 0-0 13.Re1 d5 14.Bf4 d4= 0.19) 10.d3 Be7 11.Bb2 0-0 12.Ba4 Rfb8 13.Nb5 Qd8 14.Re1 e5= –0.06; A3) 9.d3 Be7 (9...a6 10.Ba4 Qc7 11.Bf4 Rb8 12.d4 cd4 13.Nd4 Rc8 14.Rb7 Qb7+= 0.31; 9...Rb8 10.0-0 Qc7 11.d4 cd4 12.Nd4 Nd7 13.Nc6 Bc6 14.Be3 Nb6+= 0.53; 9...Qd7 10.e5 Ng4 11.ed6 Bd6 12.Ne4 a6 13.Ba4 Rb8 14.d4 c4+/- 1.34) 10.Ba4 Qc7 11.0-0 0-0 12.Bf4 Rfb8 13.Nb5 Qd7 14.Qe2 Qd8= 0.06; A4) 9.Ba4 Qd7 (9...Qc7 10.0-0 Be7 11.e5 Ng4 12.Nb5 Qd7 13.ed6 Bd8 14.h3 Nf2+- 3.09) 10.d4 cd4 11.Nd4 Rc8 12.Be3 a6 13.Qf3 e5 14.Nf5 Qc7+/- 1.34; B) 8...Qc7 B1) 9.0-0 Bd7 (9...Bb7 10.Re1 Be7 11.Bb2 0-0 12.Ba4 Rfb8 13.Nb5 Qd8 14.Qe2 e5= –0.03; 9...a6 10.Bc4 Be7 11.Re1 0-0 12.a3 Bb7 13.Bb2 Nd4 14.d3 d5= –0.16; 9...Be7 10.e5 Nd7 11.ed6 Bd6 12.Ne4 0-0 13.Nd6 Qd6 14.Bb2 Rb8+= 0.28) 10.Re1 Be7 11.Bc4 0-0 12.Bb2 Nd4 13.d3 Rab8 14.Bc1 Rb1= –0.22; B2) 9.Bb2 Bd7 (9...a6 10.Ba4 Be7 11.d4 cd4 12.Nd4 Bd7 13.Nc6 Bc6 14.Qd4 Ba4= 0.06; 9...Rb8 10.Qe2 Bd7 11.0-0 Be7 12.Bc4 Na5 13.Nb5 Qb6 14.Bf6 Bf6+= 0.56; 9...Be7 10.0-0 0-0 11.Qe2 Rb8 12.Bc4 e5 13.Ng5 Nd4 14.Qd3 h6= –0.09) 10.0-0 Rb8 11.Re1 Be7 12.a3 0-0 13.Bc4 Nd4 14.d3 Rb6+= –0.31; B3) 9.d3 Be7 (9...Bd7 10.a3 a6 11.Bc4 Be7 12.0-0 Na5 13.Nd2 Nc4 14.Nc4 0-0= 0.06; 9...Bb7 10.Bf4 a6 11.Ba4 Rb8 12.d4 cd4 13.Nd4 Rc8 14.Rb7 Qb7+= 0.31; 9...a6 10.Bc6 Qc6 11.0-0 Be7 12.e5 Nd5 13.Ne4 0-0 14.Re1 Bd7+= 0.28) 10.0-0 0-0 11.Be3 Bb7 12.Re1 a6 13.Bc4 Rfb8 14.Bf4 Na5= –0.06; B4) 9.d4 cd4 (9...a6 10.Bc6 Qc6 11.d5 Qc7 12.0-0 Be7 13.Bf4 e5 14.Bg5 0-0+= 0.28) 10.Nd4 Bd7 11.Be3 a6 12.Bc6 Bc6 13.Nc6 Qc6 14.Qd4 Rc8= 0.03; C) 8...Bd7 C1) 9.0-0 Rb8 (9...Be7 10.d4 a6 11.Bc6 Bc6 12.d5 Bb5 13.Nb5 ab5 14.de6 fe6= 0.09; 9...a6 10.Bc4 Ne4 11.Ne4 d5 12.Qe2 de4 13.Qe4 Bd6 14.d3 Qc7+= 0.59; 9...Rc8 10.a3 Be7 11.Bb2 Rb8 12.Qe2 0-0 13.Bc4 Na5 14.Ba2 Bc6= 0.12) 10.Re1 Be7 11.d4 cd4 12.Nd4 Nd4 13.Bd7 Nd7 14.Rb8 Qb8= –0.03; C2) 9.Bb2 Nd4 (9...Be7 10.0-0 Rb8 11.d4 cd4 12.Nd4 Qc7 13.Bc6 Bc6 14.Qd3 Ba8= 0.12; 9...Rb8 10.a4 Be7 11.0-0 0-0 12.d4 cd4 13.Nd4 Qc7 14.Nc6 Bc6= 0.03; 9...a6 10.Bc4 Be7 11.0-0 0-0 12.Qe2 Nd4 13.Qd3 Nf3 14.Qf3 Qc7+= 0.31) 10.Bc4 Rb8 11.a3 Be7 12.0-0 0-0 13.Re1 Qc7 14.d3 Rb6+= –0.31; C3) 9.a3 a6 (9...Be7 10.0-0 0-0 11.d4 cd4 12.Nd4 Qc7 13.Be3 a6 14.Bc6 Bc6= 0.00; 9...Rb8 10.0-0 a6 11.Bc6 Bc6 12.Rb8 Qb8 13.Qe2 Qb7 14.d3 Be7= –0.09; 9...Nd4 10.Bd7 Qd7 11.0-0 Be7 12.d3 0-0 13.Be3 e5 14.Nd2 Rab8= 0.09) 10.Bd3 d5 11.ed5 ed5 12.0-0 Be7 13.Bb2 c4 14.Be2 0-0= –0.22; C4) 9.d3 Rb8 (9...Be7 10.0-0 a6 11.Bc6 Bc6 12.Bf4 0-0 13.Qe2 Qd7 14.Rb3 Rab8= 0.09; 9...a6 10.Bc4 Na5 11.Bb3 Be7 12.Ba4 Ba4 13.Na4 0-0 14.0-0 Qc7= 0.06; 9...Rc8 10.0-0 Be7 11.Be3 0-0 12.Re1 Ng4 13.Bf4 Bf6 14.Ne2 Nge5= 0.06) 10.0-0 Be7 11.Be3 0-0 12.Qd2 d5 13.Bc6 Bc6 14.Rb8 Qb8= 0.00.

5.Rb1 g6

6.Ba3 e6 7.Nf3 Qa5 8.Bb2 Bg7 9.Nb5 Bb2 10.Rb2 Ba6 11.Nd6 Ke7 12.Ba6 Qa6 13.Nb5 Rb8 14.c4 Qa5 15.Qb1 a6 16.Nbd4 cd4 17.Rb8 Nb8 18.Qb8 Qa2 19.Qb4 Kf6 20.0-0 Kg7 21.Nd4 Nf6 22.e5 Ne4 23.d3 Qd2 24.Qd2 Nd2 25.Ra1 Rb8 26.f4 Rb1 27.Rb1 Nb1 28.Nb3 Nc3 29.Kf2 Na4 30.Ke3 f6 31.Kd4 Kf7 (31...Nb6 32.Kc5 Nc8 33.d4+/-) 32.Nc5 Nc5 33.Kc5 g5 34.fg5 fe5 35.h4 Kg6 36.g4 a5 37.Kb5 d5 (37...a4 38.Ka4 Kf7+-) 38.c5 1–0. Saldana,Enrique – Anton Gomez,Benjamin, Sicilian: wing gambit, 1999. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.Bb5 Nd4 7.Bc4 e6 8.e5 (8.Nce2!?+/-) 8...Qc7 (8...Qg5 9.Bd3 Qe5 10.Nge2=+) 9.Nf3 (9.Nge2 Qe5 10.0-0 Rb8=) 9...Bg7 (9...Bb7!? 10.Nb5 Nf3 11.Qf3 Qe5 12.Qe3 Qe3 13.fe3 Kd8=+) 10.0-0= Nf3? (better 10...a6!? 11.Re1 Rb8=) 11.Qf3+/- Rb8 12.Nb5 Rb5 (12...Qe5?? 13.Bb2 Qb2 14.Rb2 Bb2 15.Nd6 Ke7 16.Nc8 Rc8 17.Qb7+-) 13.Bb5 Be5 14.h3 Ne7 15.Bb2 Nf5 (15...0-0 16.Be5 Qe5 17.Qa3+/-) 16.Be5+- Qe5 17.Rfe1 Qc7 18.c3 (18.Bd3 Nd6+-) 18...0-0+/- 19.Bd3 Ne7 20.Qf6 Nd5 21.Qh4 d6 22.Bc4 (22.Be4 Bb7+/-) 22...Nb6 23.Be2 Bb7 (23...c4 24.Rb4+/-) 24.Qg3 (24.a4 a5+/-) 24...Bd5+= Black plans c4 25.a3 e5 (25...c4 26.Rb4+=) 26.Bf3 Be6 (26...Bf3 27.Qf3 (27.gf3?! Nc4=) 27...c4 28.a4+/-) 27.d4+/- ed4 28.cd4 c4 29.a4 Na4 30.Rb7 Qa5 (30...Qd8!?+/-) 31.Ra1 Rc8 (31...Qd2 32.Kh2 (32.Ra4?! c3+/-) 32...Nb6 33.Rd1+/- (worse 33.Raa7 Qd4 34.Ra6 Nc8=; worse 33.Rba7 Qd4 34.Rd1 Qc5=)) 32.Qd6 c3 33.d5 Bf5?? (33...Qc5 34.Qc5 Nc5 35.Rba7+-) 34.Qf6 (better 34.Qe7 Rf8 35.Ra7+-) 34...Rf8 35.g4 Bd3 (35...Bc8 36.Re7 Qc5+-) 36.h4?? (better 36.Qd4 c2 37.Qd3+-) 36...c2+/- 37.h5 Qc3 38.Qc3 Nc3 39.d6 Nb1 (better 39...gh5!? 40.gh5 Kg7=) 40.Rc7+/- Rd8 (40...gh5 41.gh5 (41.Raa7?! Nd2 42.Bg2 Nc4=+) 41...Nd2 42.Bd5+/-) 41.h6 (worse 41.Raa7 Nd2 42.Kg2 Nc4=) 41...Kf8?? (better 41...a6 42.Ra4 Bb5+-) 42.Raa7 Kg8 (42...Bc4 43.Rc4 Nd2 44.Rc2 Nf3 45.Kh1 Ng5+-) 43.Bd5 (43.Ra8 c1R 44.Rc1 Ra8 45.Ba8 Ba6 46.d7 f5 47.d8Q Kf7 48.Bd5) 43...Kh8 (43...Nc3 44.Rc3 Bb5 45.Bf7 Kf8+-) 44.Kh2 (44.Ra8 c1R 45.Rc1 Ra8 46.Ba8 Bf5 47.gf5 Nc3 48.Rc3 Kg8 49.Rc8) 44...g5 (44...c1R 45.Rc1 Bf1 46.Ra8 Ra8 47.Ba8 Nc3 48.d7 Bb5 49.d8Q Be8 50.Qe8) 45.d7 (45.Rd7 Rc8 46.Ra8 Ra8 47.Ba8 Bb5 48.Rd8 Be8 49.Re8) 45...Nc3 (45...Na3 46.Rc8 Rg8 47.Rg8 Kg8 48.d8Q) 46.Rc3 (46.Rc3 c1Q 47.Rc1 Bc4 48.Ra8 Ra8 49.Ba8 f5 50.d8Q Bg8 51.Qf6; 46.Rc8 Rg8 47.Rg8 Kg8 48.d8Q) 1-0. Nadimifar,A (2210) - Pichot,A (2630), Titled Tuesday, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1)

6.Bb5 Bg7 7.Nge2 Qa5 8.0-0 e6 9.Bc6 dc6 10.d3 Ne7 11.Qd2 f5 12.ef5 ef5 13.Re1 Kf7 14.Ne4 Qd2 15.Nd2 Nd5 16.Ba3 Nb4 17.Bb4 cb4 18.Rb4 Re8 19.Kf1 Re7 20.Reb1 Be6 21.Nc4 Rd8 22.Nf4 Bc8 23.Rb8 Rc7 24.h4 Bf6 25.g3 Ba6 26.Ne5! Ke8? 27.Ne6 Rcc8 28.Nd8 Rb8 29.Rb8 Be5 30.Ra8 (30.Ra8 Kd7 31.Nf7+-; 30.Nc6?! Bb8 31.Nb8 Bb7+/-) 1–0. Shivananda,B (2370) – Siddharth,R (2455), 3rd Chennai Open, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.Bc4 e6 7.a4 =.

6.Nf3 Bg7 7.Bb5 Nd4 8.Bc4+/- e6 9.e5 (9.Nd4 cd4 10.Nb5 d5 11.ed5 a6+/-) 9...Ne7 (9...Qc7 10.0-0 a6 11.Re1=) 10.Ne4 0-0 11.Nf6 (11.Ba3 Nf3 12.Qf3 Be5 13.Bc5 d5 14.Nf6 Bf6 15.Qf6 Nf5 16.Qd8 Rd8+=) 11...Bf6 12.ef6 Nec6 13.Nd4 Nd4 14.c3 d5 (14...Nf5 15.Ba3 d6 16.Qf3=) 15.Bd3 (15.cd4 dc4 16.Qf3+= (worse 16.dc5 Qd3 17.Rb4 a5=+)) 15...Nf5 16.g4 Nh4 17.g5 e5 18.f3 (18.0-0 Qd7 19.f3 Qh3=+) 18...e4 (18...h6!? 19.Rg1 hg5-/+) 19.fe4=+ de4 (better 19...Bh3!? 20.Rg1 Re8=+) 20.Be4+/- Re8 21.d3 Bf5 22.0-0 Be4 23.de4 Qc8?? (better 23...Re4 24.Qd8 Rd8+=) 24.Rf4+- Qh3 25.Qf1 Qf1 (25...Qc3 26.Rh4 Qd4 27.Kg2 Re4 28.Qf3 Re2 29.Qe2 Qh4 30.Rb7+-) 26.Kf1 Rad8 (26...Rab8 27.Ra1 Nf3 28.Rf3 Re4 29.Be3+-) 27.Rh4 Rd1 (27...Rd3 28.e5 Rc3 29.e6 fe6 30.Bd2 Rf3 31.Ke2+-) 28.Ke2 Red8 29.Rh3 h5 (29...a5 30.Rb8! Rb8 31.Kd1 Rd8 32.Kc2+-) 30.gh6 Kh7 31.e5 Rh1 (31...a5 32.c4+-) 32.e6! fe6 (32...g5+-) 33.Rb7 Kh8 34.Bf4 Ra1 35.Be5 (35.f7 Ra2 36.Ke3 Re2 37.Ke2 g5 38.Be5 Kh7 39.f8N Kg8 40.h7 Kf8 41.h8Q) 35...Ra2 36.Ke3 (36.Kf3 Re2 37.Ke2 Rd5 38.f7 Re5 39.Kf2 Rf5 40.Rf3 Rf7 41.Rff7 Kg8 42.h7 Kh8 43.Rf8) 36...c4 (36...Rd5 37.Kf4 Ra4 38.Rb4 Re5 39.Ra4 Rf5 40.Kg4 Rf6 41.Ra7 c4+-) 37.f7 (37.f7 Kh7 38.f8Q Rd7 39.Rd7) 1-0. Nadimifar,A (2210) - Baches Garcia,G (2325), Titled Tuesday, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1)

6.Nf3 Bg7 7.Bc4 e6 8.0-0 Nge7 9.Re1 d6 10.d4 0-0 11.Ne2 Na5 12.Bb5 a6 13.Ba4 Bb7 14.dc5 Be4 (worse is 14...dc5 15.Qd8 Rfd8 16.Bd2+/-) 15.cd6 Nd5 16.Nd2 Bf5 17.Nb3 (17.Ba3 Qh4 18.Bb3 Nb3 19.Rb3 Bg4+=) 17...Nc4 (17...Rc8 18.Nbd4 Bd4 19.Qd4=) 18.Bc6 (18.d7 Rb8=) 18...Rc8 (18...Nb4 19.Ned4 (worse is 19.Ba8 Bc2 20.Bb7 Bd1 21.Rd1 Nd6-+) 19...Bc2 20.Nc2 Nc6 21.Ne3 Ne3 22.Be3=) 19.Bd5 ed5 20.Nbd4 (worse is 20.Qd5 Bc2 21.d7 A) 21...Bb1? 22.Bg5+- (22.dc8Q Qc8 23.Bh6 Ba2 24.Bg7 Kg7 25.Qd4 f6=); B) 21...Rc7=) 20...Nd6 21.Ba3 Re8 22.Bd6 Qd6 23.Nf5 gf5 24.Ng3 Re1 25.Qe1 Qe6 26.Qd2 Re8 (26...f4 27.Qf4 Rc2 28.a3=) 27.h3 Qe5 28.Qg5 h6 29.Qf5 Qf5 30.Nf5 Re2 31.Rb8 Kh7 32.Ng7 Kg7 33.Ra8 Rc2 34.Ra6 Rc1 35.Kh2 d4 36.Rd6 Ra1 37.Rd4 Ra2 38.Kg3 Ra3 39.Kg4 Ra2 40.Rf4 Kg6 41.h4 h5 42.Kg3 f6 43.Re4 Kf5 44.Re3 Ra4 45.Rb3 Rc4 46.Kh3 Kg6 47.g3 Rc2 48.Kg2 Ra2 49.Kf3 Rc2 50.Ke3 Ra2 51.f3 Ra4 52.Rd3 Ra2 53.Ke4 Re2 54.Re3 Rg2 55.Kf4 Rh2 56.Ra3 Rh3 57.Ra1 Rh2 58.Ra3 Rh3 59.Rd3 Rh2 60.Ke4 Re2 61.Re3 Rg2 62.f4 Rf2 63.Re1 Rg2 64.f5 Kh6 65.Kf3 Ra2 66.Re6 Kg7 67.Re7 Kg8 68.Rd7 Ra4 69.Re7 Ra1 70.Re6 Kf7 71.Re3 Ra4 72.Re4 Ra3 73.Kf4 Ra1 74.Re3 Ra4 75.Kf3 Rb4 76.Rc3+/- Ra4 77.Rc7 Kg8 78.Re7 Rb4 79.Ke3 Rg4 80.Kf3 Rb4 81.Re4 Rb3 82.Kf4 Kg7 83.Re1 Kg8 84.g4 Rh3+= 85.gh5 Rh4 86.Kg3 ½–½. Matseyko,Ekaterina (2315) – Ostroverkhova,Elena (2045), Rodatychi op, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.f4 Bg7 7.Nf3 d6 8.Bb5 Bd7 9.0-0 Nh6 10.Nd5 0-0 11.c3 f5 12.d3 e6=+ 13.Ne3 Bc3 14.Qa4 Qe8 15.Nc4 Nf7 16.Be3 fe4 17.de4 a6 18.Bc6 Bc6 19.Qc2 Bg7 20.Rb6 Rc8 21.Re1 Ba4 22.Qd2 Rc6 23.Rbb1 Bb5-/+ 24.Na5 Rc8 25.Qc2 Qd7 26.Rec1 Nd8 27.Qd2 Nc6 28.Rc5 Na5 29.Rc8 Qc8 30.Qa5 Qc2 31.Nd2?? Bc3-+ 32.Qc7 Qd3 (32...Qd3 33.Re1 Bd2 34.Bd2 Qd2-+) 0–1. Cuberli,Emiliano – Garcia,Rai (2345), 1st Chesspangenberg Open (1), 2003.

6.f4 Bg7 7.Nf3 d6 8.Bb5 Bd7 9.Bc4 Rb8 10.Rb8 Qb8 11.0-0 Nf6 12.Qe2 e6 (12...0-0 13.Kh1=) 13.Ba3 0-0 (13...Nh5 14.e5 Nf4 15.Qe4 Nh3 16.gh3 Ne5 17.Ne5 Be5 18.Qg2=) 14.e5 de5 (better is 14...Nh5!? should be examined more closely 15.Rb1 A) 15...Nf4 16.Qe3 Qa8 17.ed6 Ng2 18.Kg2+= (worse is 18.Qc5 Nh4 19.Qf2 Nf3 20.Qf3 Qd8-+); B) 15...Qc8+=) 15.fe5+/- Nd5 (better is 15...Ng4!? 16.Bc5 Nge5 17.Ne5 Be5 18.Bf8 Kf8+/-) 16.Nd5+- ed5 17.Bd5 Ne5 (better is 17...Nb4!? 18.Bb3 Bb5+/-) 18.Bc5+- Re8 19.Ne5 Re5 20.Qd3 (20.Bf7!? Kh8 21.Be3 Bf5+-) 20...Bf5 (20...Be6 21.Be6 Re6 22.c3+/-) 21.Qc4 (21.Bf7!? Kh8 22.Qc4+-) 21...Qc7 22.d4 Re8 23.Qb3 h5 24.Qa4 Re2 25.c4 a5+= 26.Bf3 Rd2 27.Rd1 Qf4= 28.Rd2 Qd2 Black has a mate threat 29.Qd1 Qa2 30.Bd5 a4 31.Qc1 Qb3 32.h3 Qd3 33.Qa1 a3 34.Kh1 Qb1?? 35.Qb1= Bb1 36.Ba3 Bd4 37.Bd6 Ba2 38.g3 Kg7 39.Kg2 Kf6 40.Kf3 g5 41.Ke4 Bb2 42.c5 Bb1 43.Ke3 Ba3 44.Bf3 Bf5 45.h4 gh4 46.gh4 Bg4 47.Bg4+/- hg4 48.Kf4 Kg6 49.Kg4 f5 50.Kh3 Kh5?? the position is going down the drain 51.Be7+- Bb2 52.c6 Be5 53.Bd8 1–0. Gietl,Thomas (2330) – Loew,Gerald (2275), Freising op, 2001. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.f4 Bg7 7.Nf3 Nh6 8.Bc4+= d6 9.0-0 0-0 10.Ne2 Bg4 11.Bb2 Na5 12.Bg7 Kg7 13.Bb5 a6 14.Ba4 Be6 15.Nc3 Qc7 16.d3 Rab8 17.Qd2 Rb1 18.Rb1 Rb8 19.Rb8 Qb8 20.f5! Bc8 (20...gf5 21.Qg5) 21.Nd5+- Bb7 (21...Nb7 22.Ne7 f6 23.fg6 hg6 24.Nh4+-) 22.Ne7 (22.Qc3!? f6 23.Qa5 Bd5 24.ed5 Qb1 25.Kf2 Nf5 26.Qa6 Qa2+-) 22...Qc7 23.f6! Kf6 24.Qh6 Ke7 25.Qh7 c4 26.Qh4 Kf8 27.Qh8 Ke7 28.d4 (28.Qe8 Kf6+-) 28...Bc6+/- 29.Bc6 Nc6 30.Qh4 Ke8 31.Qf6 Nb4 32.e5 de5 33.Ne5 Nc2 34.Qh8 (34.Ng6 Qb7 35.Qe5 Kd8 36.Qd6 Qd7 37.Qb6 Qc7 38.Qf6 Ke8 39.Qg7+-) 34...Ke7+= 35.Qh4 Kd6 36.Qe4 (36.Qf2 Nb4 37.a3+/- (37.Nf7?! Kd5=; 37.Qf7? Qf7 38.Nf7 Ke6 39.Ng5 Kf5-+)) 36...Na3? (36...Nb4 37.a3 Nd5 38.Qe2=) 37.h4 (better is 37.Qf3!? Nb5 38.Nf7 Ke7 39.Ng5+-) 37...c3+= 38.Nd3 (38.Qf3 Nb5 39.Nf7 Ke7=) 38...Qc4 (38...c2!? 39.Qf4 Kc6+=) 39.Qe5= Kc6 40.d5 Kd7 41.Qe3 Qd5 42.Qa7 Ke8 43.Qb8 Kd7 44.Qa7 ½–½. Hamann,Carsten (2200) – Knuth,Hannes (2295), Oberliga Nord N, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.Bc4 Bg7

7.Nge2 Nf6 8.d3 0-0 9.0-0 d6 10.h3 Bd7 11.Be3 Qc8 (11...Rb8 12.Qd2=) 12.Qd2+= Ne5 13.Bd5 Bh3? (13...Rb8!? 14.Rb8 Qb8+=) 14.f3 (14.f4 Nd5 15.Nd5 Nc6 16.gh3 Qh3+/-) 14...Nd5 (14...Bd7 15.Ba8 Qa8 16.Bh6+/-) 15.Nd5 Qd7 (15...Re8 16.f4 Qg4+/-) 16.gh3 (better is 16.f4!? Nc6 17.gh3 Qh3 18.Bf2+/-) 16...Qh3= 17.Ne7 Kh8 18.Nf4 (18.Bf4 Nf3 19.Rf3 Qf3 20.Bd6 Rad8 21.Bc5 Rfe8=) 18...Nf3= 19.Rf3 Qf3 20.Rf1 (20.Kh2!?=) 20...Qg3+= 21.Ng2 Rae8 22.Nd5 f5 23.Bf4 Bd4 24.Nde3 Be3 (24...Qh3 25.Bd6 Rf6 26.Bc7 fe4 27.Rf6 Bf6 28.Bd6-/+) 25.Be3= (worse is 25.Qe3 Qe3 26.Ne3 fe4 27.de4 Re6-/+) 25...Qe5 (25...fe4 26.Rf8 Rf8 27.Bf4 Rf4 28.Qf4 Qf4 29.Nf4 ed3 30.cd3=) 26.d4 Qe4 27.dc5 d5 (27...dc5!? 28.Bc5 Rf7=) 28.Bh6+= Rg8 29.Rf4 (29.c6 d4+=) 29...Qe5 30.Rd4 Qe2 (30...g5!? 31.Rd5 Qf6=) 31.Qc3 Qe5 32.Qd3 (32.Bd2 Rgf8+/-) 32...Rd8 (better is 32...g5 33.Rd5 Qf6+=) 33.Qd2?? (better is 33.Bf4 Qe6 34.Bd6+/-) 33...g5!-/+ 34.c4 (34.Bg5 Rg5) 34...Qf6 35.Rd5 Rd5 36.cd5 f4 (better is 36...Qh6!? 37.d6 Rd8-/+) 37.d6+= Rg6?? (better is 37...Qh6 38.c6 Qf6=) 38.d7+- Rg8 39.Qd6 (better is 39.c6 Qh6 40.Qd4 Qg7 41.d8Q Rd8 42.Qd8 Qg8 43.c7+-) 39...Qd6 40.cd6 Rd8 41.Bg5 Rd7 42.Bf4 Kg7 43.Kf2 (43.Ne1!?+-) 43...Kf7 44.Ne1 Ke6 45.Ke3 Kd5 46.Nd3 h5 47.Nb4 Ke6 (47...Kc5 48.Na6 Kd5 49.Nc7 Kc6 50.Kd4+/-) 48.Ke4 (48.Kd4!?+/-) 48...h4 49.Nc6 (49.Nd3 Rd6 50.Bd6 Kd6+/-) 49...Rd6 50.Bd6 (50.Nd4!? Kd7 51.Bd6 Kd6 52.Kd3+=) 50...Kd6= 51.Na7 Kc5 52.a3 Kc4 53.Kf3 Kb3 54.Nb5 Ka4 ½–½. Frink,Ferenc (2065) – Najgebauer,Szemjon (2270), Tatranske Zruby SVK, Tatry Open, 2014. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

7.Qf3 Nh6 =.

7.Nf3 d6 8.0-0 Nf6 9.d4 cd4 10.Nd4 Nd4 11.Qd4 0-0 12.Qd3 Nd7 13.f4 (13.Bd5 Rb8 14.Rb8 Nb8+=) 13...Nc5= 14.Qe3 Be6 (14...Bc3 15.Bd5 Ba6 16.Qc3 Bf1 17.Bb2=+) 15.Nd5+= Rc8 16.f5 Bd5 17.Bd5 (17.ed5 Na4 18.Rb4 Qa5=) 17...Nd7 (17...e6!? 18.Bc4 Ne4=) 18.fg6 hg6 19.Qg3 (19.Rb7 e6 20.Bb3 a5=) 19...Ne5 (19...e6 20.Bb3=) 20.Bb2 (20.Bb3 Qa5=) 20...e6 (20...Rc2? 21.Be5 de5 22.Rf7 Rf7 23.Bf7 Kf8 24.Bg6+-) 21.Bb3 Qa5 22.Kh1 Rc7 23.Bd4 Qd2 (23...Rb8 24.Qf4=) 24.Qf2 (24.c3!?+=) 24...Qf2=+ 25.Rf2 (25.Bf2 Ng4=+) 25...Rb8 26.Be5 (26.Rff1!?=+) 26...Be5-/+ (worse 26...de5 27.Rd1=) 27.Rbf1 a5 28.g3 Kg7 29.a4 (29.Kg2 Rb4 30.Re2 a4-/+) 29...Rb4 30.Kg2 (better 30.Re2!?-/+) 30...Re4-+ 31.Rf3 d5 32.R1f2 Re1 (32...g5 33.h3-+) 33.Rd3 (better 33.Rf1 Rf1 34.Kf1-+) 33...Re4 34.Rfd2?? (34.Rdf3 g5 35.Kf1-+) 34...Bc3-+ 35.Rf2 f5 36.Rf1 Re2 37.Rf2 Rf2 38.Kf2 Kf6 39.Kf3 (39.Rf3 d4-+) 39...d4 40.h4 e5 41.Rd1 e4 42.Kf4 (42.Ke2 Bb2-+) 42...Re7 (42...Bb4 43.Rd4 Rc3 44.Rd3 Rd3 45.cd3 Bd2) 43.g4 (43.Bc4 d3! 44.cd3 e3-+) 43...fg4 (better 43...e3 44.Bc4 e2 45.g5 Kg7 46.Be2 Re2 47.Rb1-+) 44.Bc4 g3! 45.Kg3 Ke5 46.Kg4 Rc7 47.Bb3 e3 (47...Rb7!? 48.Kg5-+) 48.Kf3 Rc8 49.Rg1?? (49.Ke2-+) 49...Rf8 50.Ke2 Rf2 51.Kd3 e2 (51...Kf6 52.Bd5 Rd2 53.Kc4-+) 52.Rg5 (52.Rg6 e1N 53.Kc4 Nc2 54.Bc2 Rc2 55.Rg8-+) 52…Kf6 (52...Kf6 53.Rg1 Rf1 54.Rg6 Kg6 55.h5 Kh5 56.Ke2 Re1 57.Kd3 Re3 58.Kc4 Bb2-+) 0-1. Hrabinska,M (2235) - Okhotnik,V (2350), Vladimir Eljanov Mem, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1)

7.Nf3 e6 8.0-0 Nge7 9.Re1 d6 10.Bb2 Rb8 11.Na4 Nd4 (better is 11...Bb2!? deserves consideration 12.Nb2 d5=) 12.Bd4+/- Rb1 13.Qb1 cd4 14.Bb5 (14.Qb8!? Bd7 15.Qa7+/-) 14...Bd7= 15.Qb4 Bb5 16.Qb5 Qd7 Black threatens to win material: Qd7xb5 17.Rb1 Qb5 Black has a mate threat 18.Rb5 0-0 19.Rb7 White threatens to win material: Rb7xe7 19...Nc8 (19...Nc6 20.Rc7 Rb8 21.Kf1=) 20.Kf1 Re8 21.Rb4 e5 22.Rb8 Kf8 23.Ke2 f5 24.d3 Ne7 25.Rb7 Nc8 26.Rb8 Ne7= 27.Rb7 Nc8 Twofold repetition 28.Rc7 Bf6 29.Nd2 h6 30.Nc4 Be7 31.f3 Kf7 32.Na5 Nb6 33.Nb6+/- ab6 34.Nc6 Ke6+= 35.Nb4 Ra8 36.Rb7 Bd8 37.Nc6 Bg5 38.Nb4 Bd8 39.Nc6 Bg5 Twofold repetition 40.Ra7 Rc8 41.Nb4+= h5 42.Kd1 Bd8 43.Nd5 An ideal square for the white knight. 43...g5 44.Rh7 h4 45.Kc1 fe4 46.fe4 Ra8 47.Rh8 Rb8 48.Rh7 Ra8 Twofold repetition 49.Kb2 Ra5 50.Rh8 Be7?? 51.Rh6+- (51.Rh6 Kd7 52.Rh7 Rd5 53.ed5+-) 1–0. Biro,Zsolt (2100) – Barta,Zoltan (2105), HUN–chT2 Erkel, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

6.g3 Bg7

7.Nge2 e6 8.h4 h5 9.Bg2 Nge7 10.0-0 0-0 11.d3 d5 12.ed5 ed5 13.Bg5 Be6 14.Rb5 Qd6 15.Qd2 (15.Na4 Rab8 16.Rc5 Rb4+=) 15...a6 16.Rb6 Qc7 17.Rbb1 Rab8 18.Nf4 Qd6 19.Ne6 fe6 20.Bh6 Nd4 21.Bg7 Kg7 22.Kh1 ½–½. Bolsunovsky,Konstantin – Didi,Jan (2125), Ostrava Konik op–A, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1 g6)

7.f4 e6 8.e5 d6 9.Bg2+= Nge7 10.ed6+/- Qd6 11.Ne4 Qc7 12.Ne2 0-0 13.Nc5 Qa5 14.Nd3 Qa2 15.Rb3 Rb8= 16.Rb8 Nb8 17.0-0 a5 18.Ne5 a4 19.Rf3 Ba6 20.Ba3 Re8 21.c4 Be5 22.fe5 Qc4 23.Nc3 Qd4 24.Rf2 Nbc6 25.Na4 Ne5=+ 26.Bb2 Qg4 27.Qa1? Nd3-+ 28.Bh8 e5 29.Be5 Nf2 30.Kf2 Nf5 31.Bf3 Qh3 32.g4 Nh4 33.Bg3 Nf3 34.Kf3 Bb7 35.Kf4 Re4 36.Kg5 h6 (36...h6 37.Kf6 Re6; 36...Qg4 37.Kh6 Qh5) 0–1. Gietl,Thomas (2235) – Grabics,Monika (2225), Budapest FS06 IM (6), 1996.

7.Bg2 Ba6 8.Nge2+= Nd4 9.0-0 Ne2 10.Ne2 Rb8 11.Rb3 Bc4 12.Ra3 Qc7 13.d3 Bb5 14.Qe1 Bc6 15.Qa5+/- Qa5 16.Ra5 c4 17.Ra7 cd3 18.cd3 Nf6 19.Nd4 Ba8 20.Nb3 0-0 21.Bf4 Rb5 22.Rc1 e5 23.Be3 d5 24.Rc5 Rc5 25.Bc5 Rc8 26.ed5 Bd5+/- 27.Bd5 Nd5 28.a4 Bf8 29.d4 Rb8? 30.Nd2 ed4 31.Bd4 Rb4 32.Nf3 Rb1 33.Kg2 Nb4 34.Ra8 Nc6 35.Bc5 Rb8 36.Rb8 Nb8 37.Be3 Bb4 38.Nd4 Kf8 39.Kf3 Ke8 40.Ke4 Nd7 41.Nc6 Bc5 42.Bd4 f5 43.Kd5 Bd4 44.Kd4 Kf7 45.Ne5 (45.Ne5 Ke6 46.Nd7 Kd7 47.Kc5+-) 1–0. Nanu,Ciprian (2405) – Papp Z,Csaba (2310), Szeged TT07 IM (8), 1998.

7.Bg2 Ba6 8.Nge2 e6 9.Nb5 Bb5 10.Rb5 Rb8 11.a4 d6 12.Ba3 Nge7 13.0-0 0-0 14.Qb1 Qc7 15.Qa2 a6 16.Rb8 Rb8 17.Qc4 (better 17.c3!?=+) 17...Qa5-/+ 18.c3 Ne5 19.Qa2 Qa4 20.Ra1 Nc4 21.Bc1 Qa2 22.Ra2 a5 23.f4 Nc6 24.e5 d5 25.d3 Nb6 26.Ba3 Bf8 27.Kf2 c4 28.Bf8 Kf8 29.Ke3 cd3 30.Kd3 Nc4 31.Nd4 Nd4 32.Kd4 Rb2 33.Rb2 Nb2 34.Kc5 Ke7 35.Bf3 Na4 36.Kd4 Kd7 (better 36...Nb6!?-/+) 37.c4= dc4 38.Kc4 Nb2 39.Kb5 a4 40.Kb4 Ke7?? (40...a3 41.Ka3 Nc4 42.Kb4 Ne3+=) 41.Ka3?? (better 41.Be2 f6 42.Ka3+-) 41...Nd3 42.Ka4 f6 43.ef6 Kf6 44.Kb5 e5 45.Kc4 Nf2 46.fe5 Ke5 47.Kc3 g5 48.Kc4 g4 49.Bc6 Ne4 50.Kd3 Ng5 51.Ke3 h6 52.Bd7 Nf3 53.h4 Nh4 54.gh4 h5? (54...g3 55.Kf3 g2 56.Kg2+=) 55.Bc8?? (55.Kf2 Kd6 56.Be8 Kd5+-) 55...Kf6? (55...g3 56.Bb7=) 56.Kf4?? (56.Kf2 g3 57.Kg2 Ke5+-) 56...Kg7? (56...g3 57.Kg3 Kg7 58.Kf4+=) 57.Kg5?? (better 57.Kg3+-) 57...g3= 58.Bb7 g2 59.Bg2 Kh8 60.Kh5 Kg7 61.Kg5 Kh8 62.Kg6 Kg8 ½-½. Tymms,Jonathan DM - Phillips,David A (2050), 4NCL Online Div1, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6 5.Rb1)

7.Bg2 Ba6 8.Nge2 e6 9.Nb5 Rb8= 10.a4 Bb5 11.ab5 Nge7 12.Ba3+= Nb4 13.Bb4 cb4 14.Rb4 Qa5 15.Qb1 0-0 16.c3 a6 17.ba6 Nc6 18.Rb8 Rb8 19.Qd1 Qa6 20.0-0 Rb2 21.Nf4 Bh6 22.d4 Qc4 23.d5 Ne5= 24.Qd4 Bf4 25.gf4 Qd4 26.cd4 Nd3 27.de6 fe6 28.f5 gf5 29.ef5 ef5 30.Bh3 Rb5 31.Ra1 Nf4 32.Bf1 Rb4 33.Rd1 d5 34.h4 Kf7 35.Kh2 Kf6 36.Kg3 Ne6-/+ 37.Bg2 Rb3 38.Bf3 Rc3 39.Rd2 Ra3 40.Rd1 Rb3 41.Rd2 Nf8 42.Ra2=+ Rd3 43.Ra6 Ne6 44.Rd6 h5 45.Rd5 Nd4 46.Rd6 Ke5 47.Rd5 Ke6 48.Rd4 Rd4 49.Bh5 Ke5 50.Be2 Rd7 51.Kg2 Kf4 52.h5 Re7 53.Kf1 Rh7 54.Kg2 Rg7 55.Kf1 Rg5 56.Bd1 Rg7 57.Be2 Re7 58.Bd1 Rb7 59.Kg2 Rb6 60.Be2 Rb1 61.Bf3 Re1 62.Bd5 Kg5 63.Bf3 Kf4 ½–½. Nanu,Ciprian (2285) – Vasiesiu,Dan (2425), ROM–chT Herculane, 1996.

7.Bg2 Ba6 8.Nge2 e6 9.Nb5 Rb8 10.a4 d6 11.0-0 Nge7 12.c3 0-0 13.d4 cd4 14.cd4 d5 15.Ba3 Qd7 16.ed5 ed5 17.Bc5 Rfd8 18.Re1 Nf5 19.Nec3 Bb5 20.ab5 Ncd4 21.Nd5 Rb5-/+ 22.Bd4 Nd4 23.Re7 Rb1 24.Qb1 Qa4 25.h4 Nf5 26.Rb7 a5 27.Rb8 Qe8 28.Rb7 Qe5 29.Qa2 Qa1 30.Qa1 Ba1 31.Rb5 Bd4 32.Ra5 Rb8 33.Ra2 Rb2 ½–½. Nanu,Ciprian (2380) – Krutti,V (2380), It, Harkany HUN, 2000.

5.Nf3 Qa5

6.Rb1 A) 6...e5 A1) 7.Bb5 Bd6 (7...Nge7 8.Bc4 Ba6 9.Ba6 Qa6 10.Nb5 0-0-0 11.Nd6 Kc7 12.Nf7 Qa2+- 2.62; 7...Qc7 8.0-0 Rb8 9.Bc6 Rb1 10.Bd7 Bd7 11.Nb1 Bd6 12.Nc3 Ne7+/- 0.72; 7...Rb8 8.Bc6 Rb1 9.Nb1 dc6 10.Ne5 Qa2 11.Nc3 Qe6 12.f4 f6+= 0.50) 8.0-0 Rb8 9.Bb2 Nge7 10.Bc4 Ba6 11.Ba6 Qa6 12.Ng5 f6= 0.22; A2) 7.Nd5 Qd8 (7...d6 8.Bc4 Be7 9.0-0 Nf6 10.d3 Nd5 11.Bd5 Qc7 12.Nd2 0-0+= 0.59; 7...Be7 8.Bb2 d6 9.Bc3 Qd8 10.Bb5 Bd7 11.Ba4 Rb8 12.d3 Rb1+= 0.44; 7...Bd6 8.Bc4 Ba6 9.Qe2 Bc4 10.Qc4 Nge7 11.0-0 Rb8 12.Rb8 Bb8+= 0.69) 8.Bb2 d6 9.Bb5 Bd7 10.Bc4 Nf6 11.d3 Rb8 12.c3 Be7= 0.22; A3) 7.a3 Nf6 8.Bc4 Ba6 9.Bd5 Bd6 10.Bc6 dc6 11.Bb2 0-0 12.Nh4 Bc8= 0.00; A4) 7.Bc4 Ba6 8.Bb5 Bb5 9.Rb5 Qd8 10.d3 a6 11.Rb7 Rb8 12.Rb8 Qb8+= 0.47; B) 6...Rb8 B1) 7.Rb3 Rb4 (7...Rb3 8.ab3 Nf6 9.Bc4 d6 10.0-0 Bg4 11.Bb5 Qb6 12.Re1 e5+= 0.50; 7...Rb7 8.Bc4 Nf6 9.Bb2 Nd4 10.Nd4 cd4 11.Nd5 Ne4 12.Bd4 e6+= 0.34; 7...e6 8.Ne5 Rb3 9.Nc6 Qc7 10.ab3 Qc6 11.Bb5 Qc7 12.Bb2 Nf6+= 0.47) 8.Bb5 Bb7 9.0-0 Nf6 10.Re1 Nd4 11.Rb4 Nf3 12.Qf3 cb4= 0.06; B2) 7.Rb8 Nb8 8.Ne5 Nf6 9.Nc4 Qd8 10.e5 Ng8 11.Be2 d5 12.ed6 ed6+= 0.62; C) 6...d6 C1) 7.Bb5 Bd7 8.0-0 Nf6 9.Bc4 e6 10.Re1 Be7 11.e5 de5 12.Ne5 Ne5= 0.25; C2) 7.a3 Nf6 (7...a6 8.Bc4 Nf6 9.Bb2 Rb8 10.h3 Bb7 11.0-0 Nd4 12.Re1 e6+= 0.31; 7...e6 8.Bb5 Nge7 9.0-0 Rb8 10.Qe2 a6 11.Bc6 Nc6 12.Rb8 Nb8+= 0.44; 7...Bd7 8.Bc4 e6 9.Bb2 Nf6 10.0-0 Be7 11.Qe2 0-0 12.Qd3 a6+= 0.34) 8.Bb5 Bd7 9.0-0 e6 10.Bc4 Be7 11.Bb2 0-0 12.Qe2 Rab8= 0.25; C3) 7.Bc4 e6 (7...Nf6 8.0-0 e6 9.Bb5 Bd7 10.Re1 Be7 11.Bb2 0-0 12.Bc4 Rab8= 0.19; 7...a6 8.Bb2 Rb8 9.a3 Nf6 10.Qe2 Bg4 11.Qd3 Bf3 12.Qf3 Ne5+= 0.37; 7...Bd7 8.Bb2 Nf6 9.0-0 Rb8 10.Re1 e6 11.Nb5 Be7 12.Bf6 gf6+= 0.62) 8.Bb2 Nf6 9.a3 Be7 10.Bb5 Bd7 11.0-0 0-0 12.Qe2 Rab8= 0.09; C4) 7.Rb5 Qd8 (7...Qc7 8.Nd5 Qd7 9.Rb3 e6 10.Bb5 Nge7 11.Ne3 a6 12.Ba4 Bb7+= 0.56) 8.Rb3 Bd7 9.Bb5 Nf6 10.0-0 Nd4 11.Bd7 Qd7 12.Rb2 Qg4+= 0.34; D) 6...e6 D1) 7.Bb2 Nd4 (7...Nf6 8.Bc4 Rb8 9.e5 Ng4 10.Qe2 Bb7 11.0-0 Be7 12.h3 Nh6+= 0.47; 7...Rb8 8.a4 Nf6 9.Bb5 Bb7 10.0-0 Bd6 11.Bc6 Bc6 12.Nb5 Be7+= 0.28; 7...Bb7 8.Nb5 f6 9.Bc3 Qd8 10.Nd6 Bd6 11.Rb7 Rb8 12.Rb8 Qb8+= 0.47) 8.Nd4 cd4 9.Nb5 e5 10.Bc4 Nf6 11.Qf3 a6 12.Nd4 Qc5+= –0.31; D2) 7.Bb5 Bb7 (7...Nge7 8.Bc4 Rb8 9.Rb8 Nb8 10.0-0 Ba6 11.Ba6 Na6 12.Re1 c4+= 0.62; 7...Rb8 8.Bc6 Rb1 9.Nb1 dc6 10.Nc3 Nf6 11.0-0 Ba6 12.Re1 Be7+= 0.44; 7...Nd4 8.0-0 Qc7 9.Bd3 Bd6 10.Nd4 Bh2 11.Kh1 cd4 12.Nb5 Qb8+/- 0.84) 8.0-0 a6 9.Bc4 Rb8 10.Bb2 Nd4 11.Re1 Bd6 12.h3 Bf4= 0.09; D3) 7.a3 Nf6 (7...Be7 8.Bb5 Bb7 9.0-0 a6 10.Bc4 Rb8 11.Re1 Nh6 12.Qe2 0-0+= 0.34; 7...Bd6 8.Nb5 Bb8 9.Bb2 e5 10.Nc3 Nf6 11.Bc4 0-0 12.Qe2 Bc7+= 0.53; 7...Nd4 8.Nd4 cd4 9.Nb5 a6 10.Nd4 Qe5 11.Ne2 Qe4 12.d3 Qc6+= 0.31) 8.Bc4 Bd6 9.Nb5 Bb8 10.Qe2 a6 11.e5 Ne5 12.Ne5 ab5= 0.22; D4) 7.Rb5 Qc7 (7...Qd8 8.Rb2 Nf6 9.Bb5 Nd4 10.e5 Nb5 11.Nb5 Ne4 12.d3 a6+= 0.56) 8.Rb2 Nf6 9.Nb5 Qb8 10.Nbd4 Nb4 11.Ne2 Qc7 12.d3 d5= 0.25.

6.Bb2 A) 6...Nf6 A1) 7.Rb1 Rb8 (7...d6 8.Bb5 Bd7 9.Bc4 Rb8 10.0-0 e6 11.Re1 Be7 12.Nb5 e5= 0.00; 7...e5 8.Bc4 Rb8 9.Ng5 Nd8 10.Qe2 Be7 11.0-0 0-0 12.f4 d6+= 0.56; 7...Bb7 8.Bc4 e6 9.Qe2 Rb8 10.0-0 d6 11.Ba1 Be7 12.Rb2 0-0+= 0.47) 8.Bc4 Rb4 9.Qe2 Qb6 10.Bb3 c4 11.a3 cb3 12.ab4 Nb4= –0.06; A2) 7.Bd3 Rb8 (7...Bb7 8.a3 Rb8 9.Rb1 Nd4 10.0-0 e6 11.Re1 Be7 12.Na2 Nf3= 0.12; 7...d6 8.Bb5 Bd7 9.Rb1 Rb8 10.Bc4 Nd4 11.Nd5 Nd5 12.Nd4 Nb4= 0.06; 7...e5 8.Nd5 Nd5 9.ed5 Nb4 10.Ne5 Nd3 11.Nd3 c4 12.Nf4 Qb4+/- 1.19) 8.Rb1 e5 9.Bc4 Be7 10.Bd5 Qc7 11.a3 d6 12.Qe2 Nd4= –0.06; A3) 7.a3 Rb8 (7...e5 8.Nd5 Ne4 9.Ne5 Ne5 10.Qe2 f5 11.Be5 Kf7 12.Nc7 Bd6+/- 1.06; 7...Bb7 8.Bc4 Nd4 9.0-0 Rb8 10.Rb1 e6 11.d3 Be7 12.Na2 d5+= 0.41; 7...Nd4 8.Bc4 Bb7 9.0-0 Rb8 10.Rb1 e6 11.d3 Be7 12.Na2 d5+= 0.41) 8.Rb1 e5 9.Bc4 Be7 10.Bd5 Qc7 11.Bc6 dc6 12.Qe2 0-0= 0.00; B) 6...e5 7.Nd5 d6 (7...f6 8.Bc3 Qd8 9.Rb1 Nge7 10.Nh4 h5 11.Be2 Kf7 12.Bc4 Ke8+/- 1.22; 7...Bd6 8.Bc4 Rb8 9.Rb1 Ba6 10.Bc3 Qa4 11.Ba6 Qa6 12.Rb8 Bb8+/- 0.72) 8.Bb5 Bd7 9.0-0 Nge7 10.a4 a6 11.Qe2 Qd8 12.Bc4 Rb8+= 0.59; C) 6...Bb7 C1) 7.Bc4 e6 (7...Nf6 8.Rb1 e6 9.Qe2 Rb8 10.0-0 d6 11.Ba1 Be7 12.Rb2 0-0+= 0.47; 7...Rb8 8.Rb1 e6 9.0-0 Nf6 10.e5 Ng4 11.Re1 Be7 12.h3 Nh6+= 0.37; 7...Qb4 8.Bb3 Nf6 9.a3 Qa5 10.0-0 Nd4 11.Bc4 Rb8 12.Rb1 e6+= 0.47) 8.Rb1 Rb8 9.0-0 Nf6 10.e5 Ng4 11.Re1 Be7 12.Nb5 0-0+= 0.34; C2) 7.a3 e6 (7...Rb8 8.Rb1 e6 9.Bc4 Be7 10.Qe2 Nh6 11.Nb5 0-0 12.Qd3 Ba6+= 0.34; 7...Nf6 8.Rb1 Rb8 9.Bc4 e6 10.e5 Ng4 11.Ne4 Be7 12.Qe2 0-0+= 0.41; 7...Nd4 8.Nd5 e6 9.Bc3 Qd8 10.Rb1 Bc6 11.Ne3 Nf6 12.Nd4 cd4+= 0.31) 8.Bc4 Rb8 9.Rb1 Be7 10.0-0 Nf6 11.e5 Ng4 12.Ne4 0-0+= 0.31; C3) 7.Rb1 Nf6 (7...Rb8 8.Bc4 e6 9.0-0 Nf6 10.e5 Ng4 11.Qe2 Be7 12.h3 Nh6+= 0.47; 7...Nd4 8.Bc4 e6 9.0-0 Nf6 10.Re1 Rb8 11.Ba1 Be7 12.e5 Nf3+= 0.53; 7...e6 8.Nb5 f6 9.Bc3 Qd8 10.Nd6 Bd6 11.Rb7 Rb8 12.Rb8 Qb8+= 0.47) 8.Bc4 e6 9.0-0 Be7 10.e5 Ng4 11.Re1 0-0 12.Ne4 Rab8+= 0.37; D) 6...Rb8 7.Rb1 Nf6 (7...e5 8.a4 Nf6 9.Bb5 Bb7 10.Nd5 Ne4 11.Qe2 f5 12.Ne5 Ba8+- 1.56; 7...d6 8.Bc4 Nf6 9.a3 Nd4 10.h3 e6 11.0-0 Be7 12.Re1 0-0= 0.03; 7...Ba6 8.Ba6 Qa6 9.d3 Qa5 10.Qd2 Nf6 11.0-0 e6 12.Ba1 Rb4+= 0.50) 8.Bc4 Rb4 9.Qe2 Qb6 10.Bb3 c4 11.a3 cb3 12.ab4 Nb4= –0.06.

6.Bb5 A) 6...Bb7 A1) 7.Bc4 a6 (7...e6 8.Rb1 Rb8 9.0-0 Nd4 10.Bb2 Nf6 11.Re1 Be7 12.Nd4 cd4+= 0.41; 7...Nd4 8.Rb1 Rb8 9.Bd5 Nc6 10.Bc6 dc6 11.Bb2 e6 12.0-0 Nf6+/- 0.84; 7...Rb8 8.Rb1 e6 9.0-0 Nd4 10.a3 Be7 11.Nd4 cd4 12.Ne2 Nf6+= 0.31) 8.Rb1 Rb8 9.Bb2 e6 10.0-0 Nd4 11.Re1 Bd6 12.d3 Qc7= 0.19; A2) 7.0-0 Rb8 (7...Nd4 8.Rb1 Rb8 9.Bc4 e6 10.a3 f5 11.Ne5 Nf6 12.ef5 Bd6+= 0.47; 7...Nf6 8.Rb1 a6 9.Ba4 Nd8 10.e5 Ng4 11.h3 Nh6 12.Qe2 e6+= 0.59; 7...a6 8.Bc4 Rb8 9.Rb1 Nf6 10.e5 Ng4 11.Re1 e6 12.h3 Nh6+= 0.59) 8.Rb1 Nd4 9.Bc4 e6 10.a3 Be7 11.Nd4 cd4 12.Ne2 Nf6+= 0.31; A3) 7.Rb1 a6 (7...Nf6 8.e5 Ng4 9.h3 Nh6 10.Bc4 Ba6 11.Ba6 Qa6 12.d3 Nf5+/- 0.72; 7...e6 8.0-0 a6 9.Bc4 Rb8 10.Bb2 Nf6 11.Re1 Be7 12.Nd5 Bd8+/- 0.81; 7...Nd8 8.0-0 Nf6 9.Re1 e6 10.a3 Rb8 11.e5 Nd5 12.Nd5 ed5+/- 0.81) 8.Bc6 Bc6 9.Ne5 Qc7 10.Nc6 Qc6 11.0-0 Nf6 12.d3 c4+/- 0.72; B) 6...Nd4 B1) 7.Rb1 a6 (7...e6 8.0-0 Ne7 9.Bc4 Nec6 10.a3 Ba6 11.Ba6 Qa6 12.Re1 Bd6+= 0.47; 7...Ba6 8.Nd4 cd4 9.Qh5 Bb5 10.Qb5 Qd8 11.Ne2 a6 12.Qe5 d3+/- 0.94; 7...Nf6 8.e5 Ne4 9.Ne4 Nb5 10.Nc5 Nc3 11.dc3 Qc3 12.Qd2 Qc5+= 0.53) 8.Bc4 e6 9.0-0 d6 10.a3 Be7 11.Bb2 Rb8 12.Re1 Nf6+= 0.31; B2) 7.Bd3 Rb8 (7...Nf3 8.Qf3 Rb8 9.0-0 e6 10.Qg3 d6 11.Bc4 Nf6 12.e5 de5= 0.22) 8.0-0 e6 9.Bc4 Nf6 10.Re1 d6 11.Rb1 Rb1 12.Nb1 Bb7= 0.00; B3) 7.Bc4 Ba6 (7...Nf6 8.Rb1 e6 9.0-0 d6 10.Re1 Be7 11.e5 Nd7 12.ed6 Bd6+/- 0.94; 7...Rb8 8.0-0 Nf6 9.e5 Rb4 10.ef6 Rc4 11.fe7 Be7 12.Re1 Bb7+= 0.62; 7...Bb7 8.Rb1 Ba6 9.Ba6 Qa6 10.a4 Rc8 11.Bb2 Nf6 12.e5 Qe6+= 0.56) 8.Ba6 Qa6 9.Rb1 Rc8 10.Bb2 Nf6 11.d3 Rb8 12.0-0 Qd6+= 0.47; C) 6...Nb4 7.a3 Nf6 (7...Rb8 8.Rb1 Nc6 9.Bc6 Rb1 10.Bd7 Bd7 11.Nb1 c4 12.Qe2 Qa4+/- 0.97; 7...Na6 8.Rb1 Rb8 9.0-0 e6 10.Ne5 Qc7 11.f4 Nf6 12.Qe2 c4+/- 1.37; 7...e6 8.Rb1 a6 9.Ba4 Na2 10.Bd7 Bd7 11.Na2 Bc6 12.Nc3 Bd6+/- 1.09) 8.Rb1 a6 9.Bc4 Nc6 10.e5 Ng4 11.Qe2 e6 12.h3 Nh6+/- 0.81; D) 6...Rb8 7.Rb1 (7.Bc6 dc6 8.Ne5 Qc7 9.f4 g6 10.Ba3 f6 11.Nf3 Bh6 12.g3 Qa5+= 0.28; 7.a4 Nd4 8.Nd4 cd4 9.Qh5 Qc7 10.Nd5 Qc2 11.Qe5 Rb7 12.0-0 f6+= 0.41) 7...e6 (7...Nf6 8.e5 Ng4 9.e6 fe6 10.Bc6 Rb1 11.Nb1 dc6 12.Nc3 g6+/- 0.75; 7...Ba6 8.Bc6 Rb1 9.Bd7 Kd7 10.Nb1 Qa2 11.Nc3 Qa1 12.Ng5 Bc4+= 0.69; 7...a6 8.Bc6 Rb1 9.Nb1 dc6 10.Nc3 Nf6 11.0-0 Bg4 12.h3 Bh5+= 0.62) 8.Bc6 Rb1 9.Nb1 dc6 10.Nc3 Nf6 11.0-0 Ba6 12.Re1 Be7+= 0.44.

6.Bc4 Rb8 A) 7.Bd5 Nd4 (7...Qc7 8.0-0 Nf6 9.Bc4 Na5 10.Be2 Nc6 11.Re1 Ne5 12.Nd5 Nf3+= 0.34; 7...Nd8 8.0-0 Nf6 9.Bc4 Rb4 10.Qe2 Rc4 11.Qc4 Ba6 12.Qb3 Bf1+= 0.50; 7...Nf6 8.Bc6 dc6 9.Ne5 Qc7 10.f4 e6 11.Qe2 Nd7 12.Nd7 Qd7= 0.25) 8.Nd4 cd4 9.Ne2 Nf6 10.Bb3 e5 11.Rb1 Bb7 12.f3 Bc5+= –0.47; B) 7.0-0 e6 (7...g6 8.Rb1 Rb1 9.Nb1 Bg7 10.d3 Nf6 11.Bd2 Qc7 12.Nc3 0-0+= 0.34; 7...Nd4 8.Rb1 Rb1 9.Nb1 Ba6 10.Ba6 Qa6 11.Nc3 Qg6 12.d3 e6+= 0.56; 7...e5 8.Nd5 Nge7 9.Ng5 Nd8 10.Qh5 Ng6 11.d3 Ne6 12.f4 Ng5+/- 1.25) 8.Qe2 Nge7 9.Re1 Ng6 10.Rb1 Rb1 11.Nb1 Nge5 12.Ne5 Ne5+= 0.28; C) 7.a3 e6 (7...Nf6 8.0-0 d6 9.Qe2 Nd4 10.Nd4 cd4 11.Nd5 Nd5 12.ed5 Bf5+= 0.37; 7...g6 8.Rb1 Rb1 9.Nb1 Bg7 10.0-0 Nf6 11.Bb2 Qb6 12.Bc3 Ba6= 0.22; 7...d6 8.Ra2 Nf6 9.Rb2 Bb7 10.Bb5 Nd7 11.0-0 e6 12.Bc6 Bc6+= 0.28) 8.Ra2 Bb7 9.Rb2 Bd6 10.Nb5 Be7 11.0-0 a6 12.Nc3 Nd4= 0.09; D) 7.Rb1 Rb1 8.Nb1 Qb4 9.Na3 Nf6 10.c3 Qa5 11.e5 Ng4 12.Qe2 e6+= 0.56.

6.Bc4 g6 7.Rb1 Bg7 (7...a6 8.Bb2 Bg7 9.0-0 Rb8 10.Bb3 c4 11.Bc4 Rb2 12.Rb2 Bc3+= 0.34 ; 7...Qd8 8.Ba3 d6 9.Bb2 Bg7 10.0-0 Rb8 11.Qe2 Nf6 12.e5 Ne5+= 0.41; 7...d6 8.Rb5 Qd8 9.Bd5 Bd7 10.Rb7 Bg7 11.Ng5 Nh6 12.Bb2 0-0= 0.00 ; 7...e6 8.0-0 Ba6 9.Ba6 Qa6 10.Nb5 Qa5 11.a3 a6 12.Bb2 f6+/- 0.84) 8.0-0 (8.Rb5 Qd8 9.Rc5 Bb7+/- 10.d4 Rc8 11.Bb2 d6 12.Rb5 Nd4+/- 1.28) 8...a6 (8...Bc3 9.dc3 Ba6 10.Qd3 Bc4 11.Qc4 d6 12.Bf4 Qc7+= 0.47) 9.Nd5 (9.Re1 Bc3 10.dc3 Ra7 11.Be3 Qc3 12.Qd5 e6+/- 1.34) 9...e6 10.Re1 (10.Ne3 d6 11.d3 Nd4 12.Kh1 Ne7+= 0.50) 10...Nge7 (10...Ne5 11.Ne5 Be5 12.Nb6 Rb8+/- 1.31) 11.d3 (11.Ne7 Ne7 12.Bb2 0-0+/- 0.84) 11...d6 (11...ed5 12.ed5 0-0+/- 0.94) 12.Nb6 (12.Bd2 Qd8+/- 0.94) 12...Rb8 (12...Ra7+/- 0.87) 13.Bd2 Nb4 14.Nc8 Rc8 15.a3 Qa3 16.c3 Nbc6 (16...Bc3? 17.Rb3 Qa1 18.Qe2+- (18.Rc3?! Qd1 19.Rd1 d5+/-)) 17.Ra1 Qb2 18.Rb1 Qa3 19.Ra1 Qb2 20.Ra2 Qb8 21.Ba6 Rd8 22.Qa1 0-0 (better is 22...d5!?+/-) 23.Rb1+- Nb4 24.d4 (24.d4 Na6 25.Rb8 (worse is 25.Ra6 Qc8+/-) 25...Nb8 26.Bg5+-) 1–0. Go,Benjamin (2120) – Ijzermans,Cees (1900), 15th HZ Open, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

5.Nf3 g6

6.Rb1 Bg7 7.Bc4 e6 8.Bb2 Nge7 9.e5 (9.Nb5 0-0+=) 9...Rb8 (9...Ne5 10.Ne5 Be5 11.f4=) 10.Qe2 (10.Ne4 0-0+=) 10...0-0 11.0-0 f6 12.Nb5 (12.Na4 fe5 13.Ne5 d5 14.Nc6 Nc6 15.Bg7 Rb1 16.Rb1 Kg7=) 12...fe5= 13.Ne5 d5 14.Nc6 Nc6 15.Bg7 Kg7 16.Bb3 Ba6 17.c4 Bb5 18.cb5 Nd4 19.Qe5 Kg8 20.Bd1 Rf5 (worse is 20...Rb5 21.Rb5 Nb5 22.Qe6 Rf7 23.Qc6+/-) 21.Qe3 Qd6 (worse is 21...Rb5 22.Rb5 Nb5 23.Bg4+/-) 22.a4 e5 23.Rc1 e4 24.Qa3 Rc8 25.Rc3 Rc7 26.h3 h5 (26...Rff7 27.d3+=) 27.f3 Qf8 28.Re1 Qh6 29.Rce3 (29.fe4 Qd2 30.ef5 Qe1 31.Kh2 Qd1 32.Rc5 Nf3 33.gf3 Qe2 34.Kg3 h4 35.Kh4 Qe7 36.Kg3 Rc5-+) 29...ef3 30.Bf3 Nf3 31.Rf3 Qd2 32.Rf5 Qe1 33.Rf1 Qe5 34.a5 Qd6 35.b6 ab6 36.ab6 Qb6 37.Qa8 Kh7 38.Rf8? (better is 38.Qd5 c4 39.Kh1-/+) 38...c4-+ 39.Kh1 Qd4 40.Rd8? (40.Qb8 Qa1 41.Kh2-+) 40...Ra7 41.Qd5 (41.Rh8 Qh8 42.Qa7 Qg7 43.Qf2-+) 41...Ra1 42.Kh2 Qf4 (better is 42...Qg1 43.Kg3 Ra3 44.Qf3 Rf3 45.Kf3-+) 43.g3 Ra2 (43...Ra2 44.Qg2 Rg2 45.Kg2 Qe4 46.Kf2 c3-+) 0–1. Go,Benjamin (2175) – Vereggen,Lars (2115), Amsterdam NED, Science Park Open–A, 2013. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nc3 Nc6)

6.Rb1 Bg7 7.Bc4 e6 8.Nb5 d6 9.Bb2 e5 10.0-0 a6 11.Nc3 Nh6 12.Bc1 0-0 13.d3 Kh8 14.Nd5 Bg4 15.h3 Bd7 16.Be3 Ng8 17.c3 Na5+= 18.Qc2 Bc6 19.Rfd1 h6 20.Qb2 f5 21.ef5 gf5=+ 22.Qb6 f4 23.Bd2 Nf6 24.Nc7 Bf3 25.gf3 Nc4 26.dc4 Rb8 27.Qc6?? Rc8-+ 28.Rb7 Rf7 29.Ne6 Qg8 30.Qc8 Qc8 31.Rf7 Qe6 32.Ra7 Qh3 33.Rb1 Ng4! 34.fg4 f3 35.Rb8 Kh7 36.Rg7 Kg7 37.Bh6 Kh7 (37...Kh7 38.Rb7 Kg6 39.Rg7 Kh6 40.Rh7 Kh7 41.g5 Qg2) 0–1. Matseyko,K (2300) – Molchanova,T (2365), FINEC WGM St Petersburg RUS (8), 2008.

6.Bb5 Bg7 7.Ba3 Nd4 8.Bc4 d6 9.Rb1 Be6 10.Nd5 Nf6 11.Nd4 cd4 12.Rb7 Bd5 13.Bb5 Kf8 14.ed5 Nd5 15.Qf3 Nb6 16.0-0 Bf6 17.Bc1 h5 18.a4 a6 19.Bc6 Rb8 20.Ra7 Kg7 21.d3 Qc8 22.Bd2 d5-/+ 23.Bd5 Nd5 24.Qd5 Qc2 25.Bg5 Bg5 26.Qg5 Qd3 27.Qe5= Kh7 28.Re7 Rhf8 29.h4 Rb1=+ 30.Rb1 Qb1 31.Kh2 Qb4 32.Rd7 Qa4 33.Rd4 Qb5 34.Qf4 a5 35.g3 Kg7-/+ 36.Qc1 Qe5 37.Ra4 Rb8 38.Kg1 Rb4 39.Ra3 a4 40.Re3 Qd4 41.Rf3 Rc4 42.Qa3 Qe5 43.Qa2 Qe6 44.Kg2 Qc6 45.Qa3 Qd5 46.Kh2 Qe5 47.Kg2 Qe6 48.Qb2 Kg8-/+ 49.Qb8 Rc8 50.Qa7 Qe8 51.Kh2 Ra8 52.Qc5 Qf8 53.Qd5 Ra7 54.Rf6 Kh7 55.Qd4 Qe7 56.Rb6 a3 57.Rb8 f6 58.Re8? Qf7 59.Re1 f5 60.Ra1 Qg7 61.Qd1 Qb2 62.Kh3 Qf2 (62...Qf2 63.Ra3 Re7-/+ (63...Ra3?! 64.Qd7 Kh6 65.Qh7 Kh7=)) 0–1. Hodot,Y (1945) – Ban,D (2160), Vaujany FRA, 2nd Open, 2011.

6.h4 h5 7.Rb1 Bg7 8.Rh3 Nf6 9.Ng5 0-0=+ 10.f4 d6 11.f5 Ne5 12.Rg3 e6 13.fe6 fe6 14.Be2 Nfg4 15.Bf3 a6 16.Ne2 Qa5 17.Rb3 c4 18.Rc3 Qb6-+ 19.Re3? Ne3 20.de3 Ra7 21.Nd4 Nf3 22.gf3 Re7 23.f4 Qc5 24.Ngf3 e5 25.f5 ed4 26.Rg6 Re4 27.Nd4 Rd4! 28.Qd4 Qd4 29.ed4 Rf6 0–1. Faraoni,E (2115) – Mogranzini,R (2415), Scaccomatto Open (1), 2008.

6.Bc4 Bg7

7.0-0 e6 8.Rb1 Nge7 9.d4 0-0 10.Ne2 d5 11.ed5 ed5 12.Bb5 Nd4 (12...Bg4!? 13.dc5 Bf3 14.gf3 Ne5=) 13.Ned4+= cd4 14.Nd4 Bd7 15.Bg5 Bb5 16.Rb5 Qd7 17.Be7 Bd4 18.Qd4 Attacks the isolani on d5 18...Qb5 19.Bf8 Rf8 20.h4 (20.Qa7 Rc8=) 20…Qc4 ½-½. Senders,Mischa (2285) - Martinovic,Sa (2540), 9th Split Open, 2019. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

7.0-0 e6 8.Rb1 Nge7 9.Re1 d6 10.Ne2 0-0 11.c3 d5 12.Bd3 c4 (12...Bd7 13.Nf4=) 13.Bc2= de4 (13...Qd6 14.Ned4 Ba6 15.Nc6 Nc6 16.ed5 ed5 17.d4=) 14.Be4+= f5 15.Bc6 Nc6 16.Qa4 Bd7 17.Qc4 Rc8 18.Qa6 e5 19.d4 e4 20.Ng5 Kh8 21.Rb7 h6 22.Nf4 Qe8 (22...hg5? 23.Ng6 Kg8 24.Nf8 Bf8 25.Qc4 Kh8 26.Qd5+-) 23.Nf3 g5 (23...ef3 24.Re3 Double attack (24.Re8 Pinning; 24.Re8 Deflection; 24.Re3 Decoy)) 24.Nd3 (24.Rd7!? Qd7 25.Ng6 Kh7 26.Nf8 Bf8 27.Nd2+=) 24...Nd8 25.Ra7 Ne6?? (better 25...Rf6 26.Qa3 Nc6=) 26.Nde5+- Bb5 27.Qd6 (27.Qa5 ef3 28.Re7 Qh5 29.Qb5 Nf4 30.Bf4 gf4 31.Nf3 Rc3+-) 27...Rd8 (better 27...Rf6!? 28.a4! Ba4+-) 28.Qb4+- ef3? (28...Bd7 29.Qc4 Kh7+-) 29.Re7 Qh5 30.Qb5 (30.Re6?! Be5 31.R1e5 Bd7+-) 30...Nf4 31.Bf4 gf4 32.Nf3 Bf6 33.R7e6 Rg8 (33...Rc8+-) 34.Rf6 Qh3 (34...Rde8 35.Re8 Re8+-) 35.Nh4! Qh4 (35...Qh4 36.Qc6 Combination) 36.Qc6 Rg2 37.Kg2 f3 (37...Qg4 38.Kh1 Qg5 39.Re7 Qh5 40.Rh6 Kg8 41.Qe6 Kf8 42.Rh5 Rd4 43.Rf5) 38.Kh1 (38.Kh1 Qg5 39.Rh6 Kg7 40.Rg1 Qg2 41.Rg2 fg2 42.Kg1 Kf7 43.Qe6 Kf8 44.Rg6 Rd4 45.Rg8) 1-0. Rahul Kumar,P (2145) - Czernek,Tymon (2095), Przepiorka Mem, 2019. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

7.Rb1 d6 8.0-0 e6 9.Re1 Nge7 10.Ne2 0-0 11.d4 d5 12.ed5 ed5 13.Bb5 Nd4 (better is 13...Bg4 14.Bg5 f6=) 14.Ned4+/- cd4 15.Bd3 (better is 15.Ba3!? Be6 16.Nd4+-) 15...Be6 16.Nd4?? (better is 16.Bb2+=) 16...Bf6?? (better is 16...Bd4 17.Bh6 Bg7 18.Bg7 Kg7-+) 17.Ne6+/- fe6 18.Re6 Rc8 19.Qe2 Rf7 20.Rf6 (20.Rf6 Rf6 21.Bg5+=) 1–0. Riedel,Finn (2165) – Strunsky,Andreas (2180), BL2–Sued, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

7.Rb1 e6 8.0-0 Nge7 9.Re1 d6 10.Bb2 Rb8 11.Na4 Nd4 12.Bd4 Rb1 13.Qb1 cd4 14.Qb8 Bd7 15.Qa7 Nc6 16.Qb6 Qa8 17.Bb3 Ke7 18.Qc7 Qb8 19.Qb8 Rb8 20.Nb2 Nb4 21.Nc4 Bb5 22.Na3 Ba6 23.h4 Ra8 24.Nb1 Bb7 25.a3 Na6 26.d3 Nc5 27.Bc4 Bc6 28.Nfd2 Na4 29.Bb3 Nb2 30.g3 Rb8 31.Kh2 Bh6 32.e5 de5 33.Re5 Nd1 34.Kg1 Nc3 35.f4 Kd7 36.Rc5 Bf8 37.Ra5 Bd6 38.Kf2 Rb7 39.Ke1 ½–½. Matseyko,Ekaterina (2300) – Eidelson,Rakhil (2185), St Petersburg (Women), 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

7.Rb1 Nh6 8.0-0 0-0 9.Bd5 Ba6 (9...Rb8 10.Rb8 Nb8 11.Bb2+=) 10.Bc6 dc6 11.Re1 Ng4 12.h3 Ne5 13.Ne5 Be5 14.Bb2 Qa5 15.Ba1 (15.Ne2 Bb2 16.Rb2 Be2 17.Re2 Rfb8=) 15...Rfd8 16.Qc1 Bd4 17.e5 Bc4 18.Ne4 Rab8 (18...Qa2?? 19.Bd4 Bd3 20.Rb2+- (20.Bc5?! Be4 21.Be7 Qc2+/-)) 19.Rb8 Rb8 20.Bd4 (20.a3!?=) 20...cd4-/+ 21.d3 (21.Ng5 Qa2 22.d3 Bd5-/+) 21...Ba2 22.Qa1 (22.Nd2 Qc3-+) 22...Qe1!-+ 23.Qe1 Rb1 24.Kf1 Re1 25.Ke1 Bd5 26.Nc5 (26.Kd2!?-/+) 26...Bg2-+ 27.Nb3 Bh3 28.Nd4 Bd7 29.Nb3 (29.e6 fe6 30.Nf3 c5-+) 29...h5 30.f4 f6 31.ef6 (31.Nd4 fe5 32.fe5 a5-+) 31...ef6 32.Nc5 Bf5 33.Na6 Kf7 34.Nb8 c5 35.Na6 c4! 36.dc4 Bc2 37.c5 Be4 38.Nc7 Bc6 0-1. Kanakaris,G (2400) - Abasov,N (2660), European Online CC GpE, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 Nc6)

4.Nc3 d6

5.Bb5 Bd7 6.Nf3 g6 7.0-0 Bg7 8.Rb1 Nc6 9.Re1 e6 10.Bc6 Bc6 11.e5 (11.d4 Ne7+=) 11...Ne7 12.Nb5 Bb5 (12...de5 13.Ne5 Rb8 14.Nc6 Nc6 15.d3=) 13.Rb5 0-0 14.Bb2 Qd7 15.c4 a6 16.Rb6 d5 17.cd5 Nd5 18.Rd6 Qb5 19.Qc2 Nb4 20.Qe4 Na2 21.Bc3 Nb4 22.h4 (22.d4 Nd5 23.Bd2 c4-/+) 22...Rad8 (22...Rfb8 23.Bb4 cb4 24.Nd4-/+) 23.h5 (23.Rb1 a5-/+) 23...Nd5 (23...Nd3!? 24.Rd8 Rd8-/+) 24.Rb1 Nc3 25.dc3 Rd6 26.ed6 Qd7 27.Rb6 Bc3 (27...gh5? 28.Ng5 Re8 29.Qh7 Kf8 30.Qh5+-) 28.Ra6 Bg7 (28...gh5 29.Ng5 Rb8 30.Qh7 Kf8 31.Ne4+/-) 29.Ne5 Qb5 30.Ra8 f5 (better 30...Qb3 31.Rf8 Bf8 32.hg6 Qd1 (32...Bd6?? 33.gh7 Kg7 34.Qg4 Kh7 35.Qh5 Kg7 36.Qf7 Kh6 37.Qg6) 33.Kh2 hg6=) 31.Rf8+/- Bf8 32.Qa8 (32.Qh4 Qe2 (32...Bd6? 33.Qd8 Kg7 34.Qd6+-) 33.d7 Qd1 34.Kh2 Be7 35.Qe7 Qh5 36.Kg3 f4 37.Kf4 Qf5 38.Kg3 Qe5 39.f4 Qe3 40.Kg4 Qe2 41.Kh3 Qd3 42.Kh4 g5 43.Qg5 Kf7+-) 32...Qe2 (32...gh5 33.d7 Qb6 34.d8Q Qd8 35.Qd8 h4 36.Nd7 Kf7 37.Qf8 Kg6 38.Qg8 Kh5 39.f4 e5 40.Qg5) 33.d7 Qd1 34.Kh2 Qh5 35.Kg1 Qd1 36.Kh2 Qh5 37.Kg1 ½-½. Riha,Vojtech (2245) - Malovanyi,Yulian (2360), 19th Prague Open, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

5.Bc4 Bb7 6.Rb1 Bc6 7.Nf3 e6 8.0-0 Be7 9.d4 Nf6 10.d5 ed5 11.ed5 Bd7 12.Re1 0-0 13.Rb7 h6 14.Qd3 Re8 15.Nb5 Bb5? (better is 15...a6 16.Nc7 Bc8+/-) 16.Bb5+- (16.Rb5?! Qc8+/-) 16...Nbd7 17.Qf5 Rb8 18.Rb8 (18.Bd7?! Rb7 19.Bc6 Qc7+=) 18...Nb8 19.Be8 Qe8 20.Bh6! Qd8 (20...gh6 21.Qf6 Decoy) 21.Bd2 Nbd7 22.c4 Nf8 23.Qb1 Qd7 24.a4! a5 (24...Qa4 25.Re7 Deflection) 25.Qb5 Bd8 26.Qd7 N8d7 (26...N6d7?? 27.Re8 Bb6 28.Bf4+-) 27.Bf4 Bc7 28.Rb1 Nb6 29.Bd6! Bd8 (29...Bd6 30.Rb6) 30.Bc5 Nc4 (30...Na4 31.Bd4 Kh7 32.Rb7+-) 31.Rb8 (31.Rb8 Ne4 32.Rd8 Kh7 33.Bd4+-) 1–0. Gietl,Thomas (2245) – Gerl,Hans (1970), Oberliga Bayern, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.Bc4 Bd7? 6.Bf7!+- Kf7 7.Qh5 g6 8.Qd5 e6 9.Qa8 Qc7?? (9...Qg5 10.Nge2 Nc6+-) 10.Rb1 Na6 (10...Ne7 11.Qb8 Qb8 12.Rb8+-) 11.Rb7 Qc6 12.Qa7 Nf6 13.Rb6 (13.Rb6 Qc8 14.Ra6+-) 1–0. Waechter,Thomas – Kaestner,Steffen, GER–chT U20 Bonn Roettgen, 1999. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.Bc4 Nd7? 6.Bf7!+- Kf7 7.Qh5 g6 8.Qd5 e6 9.Qa8 a6 10.Nf3 Nb6 11.Qa7 Be7 12.Rb1 Nd7 13.d3 g5 14.0-0 Bf6 15.e5! g4 16.Nd2 Be5 17.Nde4 Kg6 18.f4 Bd4 19.Kh1 Ne7 20.Nd6?? h5?? 21.Nc8 Nf5 22.Ne4 h4 23.Qa6 Nf8 24.Bb2 Bb2 25.Rb2 Qd4 26.Rb6 Ng3 27.Ng3 hg3 28.Re6 Kg7 29.Re7 Kg8 30.Qc4 Qc4 31.dc4 gh2 32.g3 Rh6 33.Re5 Kf7 34.Rd1 Rc6 35.Nd6 Kg6 36.Kh2 Nd7 37.Re6 Kh5 38.Kg2 (38.Kg2 Nf6 39.Rf6 Rd6 40.Rh1; 38.Rd5 Ne5 39.Rde5) 1–0. Toth,Peter – Ary,Claudio, BRA–ch27 Fortaleza, 1960.

5.Bc4 e6 6.Rb1 Nc6 7.Nf3 g6 8.d4 Bg7 9.Be3 Nge7 10.0-0 0-0 (10...f5!? 11.Be2 Rf8+=) 11.dc5+/- Na5 12.Qd3 Nc4 13.Qc4 d5 14.ed5 ed5 15.Qd3 Bf5 16.Qd2 Qd7 17.Nb5 Rab8 18.Nfd4 Nc6 19.Nd6 Be6 20.Rb3 Nd4 (20...Be5 21.Re1+/-) 21.Bd4+- Qa4 22.Bg7 Kg7 23.Rfb1 Rbd8 24.Rb4 Qc6 25.Qd4 Kg8 26.h3 Bc8 27.Re1 Be6 28.Reb1 Bc8 29.Rb8 Rd7 30.R1b5 Rdd8 31.Qf6 Qc7 32.Rb3 Qc6?? (32...Be6 33.Rd8 Qd8 34.Qd8 Rd8 35.Rb7+-) 33.Re3 (33.R3b7 Rd6 34.cd6 Qb7 35.Rb7 Bb7+-) 33...Qc7?? (better is 33...d4 34.Re7 Bh3+-) 34.Re7 (34.Nc8?! Rc8 35.Rc8 Qc8+/-) 34...Rd7 (34...Rd6 35.Qd6 Qd6 36.cd6 Bf5+-) 35.Nf7! (35.Nc8?! Qb8 36.Rd7 Qc8+-) 35...Re7 (35...Rf7 36.Qf7 Mate attack) 36.Nh6 1–0. Zajarnyi,Anatolyi (2360) – Kutnik,Alexandru (2190), Techirghiol, 1999. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nc3 d6)

5.Bc4 e6 6.Nf3 Nc6 7.0-0 Be7 8.Ne2 Bf6 9.c3 Nge7 10.d4 cd4 11.cd4 0-0 12.Bg5 Ng6 13.Qd2 Bb7 14.Rab1 Rb8 15.Rb3?? (better is 15.Rfc1+=) 15...Bg5 16.Ng5 Na5 17.Qa5?? (better is 17.Be6 fe6 18.Rb7 Nb7 19.Ne6-/+) 17...Qa5-+ 18.Rfb1 0–1. Landsrath,Mario (1790) – Petersen,Kay, Koblenz–ch, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.Bc4 e6 6.Nf3 Nf6 7.d3 Qc7 8.Bf4 Nc6 9.0-0 a6 10.Re1 e5 11.h3?? ef4-+ 12.Ng5 Ne5 13.Bd5 Bb7 14.d4 cd4 15.Qd4 h6 16.Nf3 Nf3 17.gf3 Be7 18.Bb7 Qb7 19.e5 de5 20.Qe5 Qd7 21.Rad1 Qe6?? 22.Qf4?? Qc6-+ 23.Qe5 Qe6 24.Qa5?? Qc6 25.Qe5 Qe6 26.Qa5?? Qc6 (26...Qh3 27.Re7 Ke7 28.Qc5 Ke8 29.Qc6 Ke7 30.Qd6 Ke8 31.Re1 Qe6 32.Re6 fe6 33.Qe6 Kd8 34.Ne4+/-) ½–½. Yrle,M – Molinari,Gabriel, Thonon Les Bain op, 1995.

5.Bc4 e6 6.f4 Nf6 7.Qf3 Bb7 8.Rb1 Qc8 9.Nge2+= Be7 10.Bb5 Nbd7 11.f5 e5 12.0-0 0-0 13.g4 h6 14.Bc4 Nb6=+ 15.Bd5 Rb8 16.d3 Qd7 17.Bd2 Na4 18.Rb7 Rb7 19.Bb7 Nc3 20.Nc3 Qb7 21.Rb1 Qa8 22.h4 Rb8 23.Rb3 Rb3= 24.ab3 Nd7 25.g5+= hg5 26.hg5 Nb6 27.Qh5 Qd8 28.g6 fg6?? 29.fg6+- Bf6 30.Qh7 Kf8+/- 31.Bh6 Qd7= 32.Qh8 Ke7 33.Bg7 Qg4 34.Kh2 Qf4 35.Kg2 Qd2 36.Kf3 Qf4 37.Kg2 Qd2 38.Kf3 Qf4 39.Kg2 ½–½. Prada Lopez,M (2180) – Rojas Moros,Cesar, Bicentenary Open (2), 2008.

5.Bc4 Nf6 6.Nf3 Nc6 7.0-0 g6 8.Re1 Bg7 9.Rb1 0-0 10.Ba3 Bg4 11.h3 Bf3 12.gf3 Nh5 13.Bd5 e6?? (13...Rc8 14.Bb2 Bc3 15.dc3 e6-/+) 14.Bc6+/- Bc3 15.dc3 Nf4 16.Re3 Qh4 17.Kf1 Nh3 18.Re2 Ng5 19.Re3 Nh3 20.Re2 Nf4 21.Ke1 Qh1 22.Kd2 Qf3? (better is 22...Qd1!? 23.Rd1 Rac8=) 23.Ba8+/- Ne2 24.Qe2 Qe2 25.Ke2 Ra8 26.Rb7 (better is 26.Rd1!? Rc8 27.Rd6 h5+-) 26...a5 27.Rd7 Ra6 28.Bc1 Kg7 29.c4 Kf6 30.f4 e5 31.fe5 Ke6 32.Rd6 Rd6 33.ed6 Kd6 34.Bd2 a4 35.Bf4 Ke6 36.Kf3 h5 37.c3 f6 38.Bb8 g5 39.Ba7 Kd6 40.Bb6 a3 41.Bd8 Ke6 42.Bc7 h4 (better is 42...Kd7 43.Bg3 Kc6+-) 43.Kg4 Kd7 44.Bh2 Ke6 45.Bb8 Kd7 46.Kf5 Ke7 47.e5 Kf7 (47...fe5 48.Be5 Kd7+-) 48.ef6 g4 49.Kg4 Kf6 50.Bd6 h3 51.Kh3 1–0. Hoogland,Bauke (1645) – Modderkolk,Pieter, NED–ch U17 Venlo, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.Bc4 Nf6 6.h3 Nc6 7.Nf3 e6 8.0-0 Be7 9.Re1 Qc7 10.Nb5 Qa5 11.Nd6 Bd6 12.e5 Be5 13.Ne5 Ne5 14.Re5 0-0 15.Rb1 Qc7 16.Bb2 Rb8 17.Rg5 Rb2 18.Rb2 Qf4 19.Rc5 Ne4 20.Ra5 Qf2 21.Kh1 Qd4 22.Qf3 ½–½. Romagnoli,Franco (2110) – Corbellini,Nicola, Crema op 9th, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.Nf3 Nf6 6.Bc4 Nc6 7.0-0 e6 8.Rb1 Be7 9.d4 cd4 10.Nd4 Bb7?? 11.Rb7+- Na5 12.Bb5 Kf8 13.Re7! Ke7 14.Ba3 Qc7 15.Qd2 Rhd8 16.e5 Ne8 17.ed6 Nd6 18.Re1 Kf8 19.Re6 Kg8 20.Nd5 Qb7 21.Rd6 Rd6 22.Bd6 Qd5 23.Bb4 Nb7 24.c4 Qe4 25.f3 Qb1 26.Kf2 Rd8 27.Bc6 Nd6 28.Bd5 Nc8 29.Bc5 Qg6 30.Qe3 h6 31.Be4 Qh5 32.h3?? Qc5=+ 33.Nc2? Rd2 34.Ke1 Qe3 35.Ne3 Ra2 36.Kd1 Nd6 37.Bd5 a5 38.c5-/+ Nb5?? 39.Ba2+- Kf8 40.Nd5 Nd4 41.Kd2 Ke8 42.Kd3 Nc6 43.Kc4 Kd7 44.Nb6 Ke6 45.Kb5 (45.Kb5 Ke5 46.Kc6+-) 1–0. giveaway (2400) – johnb (2265), net–chess.com, 2008.

5.Nf3 Nf6 6.Bc4 e6 7.Qe2 Be7 (7...Nc6 8.Rb1+=) 8.e5 de5 9.Ne5 a6 10.Rb1 Qc7 11.0-0 0-0 12.d3 Nc6 13.Bf4 (13.Nc6 Qc6 14.Bg5 Bd8+=) 13...Bd6= 14.Rfe1 Nd4 15.Qd1 Bb7 16.Bg3 (16.Rb2 Rab8 17.Re3 Nd5 18.Bd5 ed5-+) 16...Rab8=+ 17.f4 Ba8 18.Qd2 (18.Ba6? Qa5 19.Rb8 Bb8-+) 18...Rb1 19.Rb1 (19.Nb1 Nh5=+) 19...Rb8 20.Re1 (20.Rb8 Qb8 21.Ba6 Nh5-/+) 20...Qa5 21.Bb3 Bc7 (21...Nh5 22.Ne4 Qd2 23.Nd2-/+) 22.Nc4 (22.f5!? Bd5 23.fe6 fe6 24.Kh1=) 22...Qb4=+ 23.Ne2 (23.Bf2!?=+) 23...Qd2-/+ (23...Nb3?! 24.ab3 Qb7 25.Nc3=+) 24.Nd2 Ba5 (24...Nh5 25.Nc4-/+) 25.Nd4 cd4 26.Re2 Rd8 (26...Nh5!?-/+) 27.Bh4=+ Re8 (27...Bd2 28.Rd2 Rd6 29.Rd1=+) 28.Bf2 (28.Bf6 gf6 29.Bc4 Bd2 30.Rd2 a5=+) 28...Nd5 (28...Bc3 29.Bc4=+) 29.g3 (29.Bd5 Bd5 30.Bd4 Ba2=) 29...Nc3 (29...Rd8 30.f5 Nc3 31.Re5=+) 30.Re5= Bb4 (30...Bc7 31.Bd4 Be5 32.Be5 Ne2 33.Kf2=) 31.Nc4 (31.f5!?+=) 31...Rd8=+ 32.a3 Bf8 (32...Be7 33.f5 Bf6 34.Ra5=) 33.Ra5 Bb7 34.f5 ef5 (34...Ne2 35.Kf1 Nc1 36.fe6 fe6 37.Nd2+=) 35.Rf5 (better 35.Ne5 Bd5 36.Ra6+=) 35...Rd5 (35...Bd5 36.Re5=+) 36.Re5 (better 36.Ne5 Ba3 37.Rf7 (37.Bd5?! Bd5 38.Kf1 Be6+=) 37...Re5 38.Re7 (38.Rb7?! Kf8+-) 38...Kf8 39.Re5+-) 36...Re5= 37.Ne5 Bd5 (37...Ba3 38.Nf7 (worse 38.Bf7 Kf8-/+) 38...Bd5 39.Ne5 Bb3 40.cb3=) 38.a4 (38.Bd5 Nd5 39.Bd4 Ba3+=) 38...Bc5 (38...Bd6!? 39.Bd5 Be5=) 39.Kf1 (39.Bd5 Nd5 40.Nc6 Nc3+-) 39...Bb3 40.cb3 Nd5 (40...Na2 41.Nc6+=) 41.Nc6+- f6 42.Bd4 Bd4 43.Nd4 Nb4 44.Ke2 Kf7 45.Ke3 g6 46.Nf3 Ke6 47.Kd4 Kd6 48.Kc4 Nd5 49.d4 Kc6 50.Nd2 h5 51.Kd3 Nb4 52.Ke4 Nd5 (52...Kd6 53.Nc4 Ke6 54.Nb6+-) 53.Nc4+- Nc3 54.Kd3 Nd1 55.b4 (55.Ne3!? Nf2 56.Kc4+-) 55...Nf2 56.Ke2 Ne4 57.Kd3 Nf2 58.Kc3 Ne4 59.Kd3 (59.Kb3 Kd5+=) 59...Nf2 60.Ke2 Ne4 61.Ke3 (61.Nd2 Nc3 62.Kd3 Na4+=) 61...Nc3+= 62.Nb2 Nd5 63.Ke4 Nb4 64.Nc4 Na2 65.Na5 (65.d5 Kd7 66.Kd4 h4+-) 65...Kd6 (65...Kb6 66.Nc4 Kc6 67.d5 Kc5 68.d6=) 66.Nc4 Kc6 67.Na5 (67.d5 Kc5 68.d6 Kc6= (68...Kc4?? 69.d7+-)) 67...Kd6 (67...Kb6 68.Nc4 Kc6=) 68.Nc4 ½–½. Vavruska,Antonin (2110) – Didi,Jan (2080), CZE–ChT1E, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

5.f4 g6 6.Rb1 Nf6 7.e5 Bg4 8.Be2 Be2 9.Qe2 Nh5 10.Qe4 Bh6 11.Qa8 0-0 12.g3 de5 13.fe5 Qc7 14.Qe4 Nc6 15.Nf3 Rd8 16.Nd5 Qd7 17.c4 Qh3 18.Rg1 Ng7 19.Rb7 Nf5 20.Nf4 Bf4 21.Qc6 Bh6 22.e6 Rd6 23.Qe8 1–0. GGAT – Scott Calvert, corr, 1993. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 d6)

4.Nc3 e6

5.Rb1 Ne7 6.g3 (6.Nf3 Nbc6+=) 6...Nbc6 7.Bg2 g6 8.Bb2 Bg7 9.Nb5 0-0 10.Bg7 Kg7 11.Ne2 e5 12.0-0 d6 13.c3 (13.Nbc3 Be6=) 13...a6=+ 14.Na3 Be6 15.d4 Qa5 (worse 15...Ba2 16.Rb2 Be6 17.d5+-) 16.d5 (16.Nc2 Bc4=+ (worse 16...Qa2 17.Ra1 Qb3 18.d5+-; worse 16...Ba2 17.Ra1+=)) 16...Qa3=+ 17.de6 Rad8 (17...Qa2!? 18.ef7 Rf7-/+) 18.ef7= Qa2 19.Qd3 (19.Ra1!? Qc4 20.Ra4=+) 19...a5=+ 20.f4 Rf7 (20...Qf7?! 21.fe5 Qe6 22.Rf8 Kf8 23.ed6 Qd6 24.Qc4=) 21.Bh3 ef4 (21...d5!?=+) 22.Nf4= Ne5? (better 22...Rf6=) 23.Qa6?? (better 23.Qe3 Re8 24.Be6+-) 23...Rf4!-+ 24.gf4 (24.Rf4 Qb1 Deflection (24...Qb1 Overloading); 24.gf4 Nf3) 24...Nf3! 25.Rf3 Qb1 26.Rf1 Qe4 27.Qa5 Rf8 (27...Qe3 28.Kg2 Rb8 29.Qa1-+) 28.Qc7 Qe3 29.Kg2 Rf6 30.Rf3 Qe2 31.Rf2 Qe4 32.Kg1 Kh6 33.Qd8 (33.c4 Qe3 34.Kg2 Nf5-+) 33...Qe3 34.Kg2 (34.f5 Qh3 35.Qe7 Qc3 36.Kh1-+) 34...Nd5 35.f5 gf5 (worse 35...Qc3 36.Rf3 Qe1 37.Bg4-+) 36.Bf5 Qg5 37.Kh1 Rf5 38.Qd6 Rf6 (better 38...Qf6! 39.Qf6 Rf6 40.Rf6 Nf6 41.c4-+) 39.Rf6 Qf6 40.Qc5 Qf1 (40...Nc3?! 41.Qe3 Kg6 42.Qg3 Kf7 43.Qc7 Kg8 44.Qg3 Kf8 45.Qb8 Ke7 46.Qc7 Ke6 47.Qc6 Kf5 48.Qf3 Kg5 49.Qg3 Kh5 50.Qh3 Qh4 51.Qc3 Qe4 52.Kg1=) 41.Qg1 Qg1 42.Kg1 Nc3 0–1. Rusan,Paul_Cristian (2280) – Istratescu,Andrei (2630), Campionatul National Pe Echipe, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

5.Bb5 a6 6.Ba4 Bb7 7.f4 Nc6 8.Nf3 d6 9.d4 cd4 10.Nd4 Nge7 11.Rb1 Rb8?? (better is 11...Qc7+=) 12.Rb7!+- Rb7 13.Nc6 (worse is 13.Bc6 Nc6 14.Nc6 Qc7-+) 13...Nc6 14.Bc6 Rd7 15.Qd4 Be7 (15...Qh4 16.g3 Qd8 17.Qa7+-) 16.Qa4 (better is 16.Bd7 Qd7 17.Qg7 Rf8+-) 16...Bf6 17.Bd2 (17.Bd7?! Qd7 18.Bd2 Qa4 19.Na4 Ke7+-) 17...Ke7 18.Bd7 Qd7 19.Qd7 Kd7 20.Ke2 Rc8 21.Kd3 Kc6 22.Rb1 Kd7 23.Na4 Ke8 (23...Bd8 24.Be3+-) 24.Nb6 (24.Rb6!? Rd8+-) 24...Rb8 25.Rb3 Rd8 (25...Bd8 26.Na4 Bc7 27.c4+-) 26.Bc3 (26.Ra3 d5 27.ed5 ed5 28.Ra6 d4+-) 26...e5 (26...Bc3 27.Rc3 a5 28.Rc7+-) 27.Nd5 h5 28.Rb6 Kd7 29.Rb7 Ke8 30.Nc7 (30.Ra7!? a5+-) 30...Kf8 31.Na6 Ra8 32.Rb8 Rb8 33.Nb8 Ke7 34.Nc6 Ke6 35.a4 Kd7 36.fe5 Bg5 37.Nb4 de5 38.Be5 f6 39.Bd4 Bf4 40.g3 Bb8 41.a5 Kc8 42.a6 Bd6 43.Nd5 h4 44.a7 Kb7 45.Nb6 Ka7 46.Nc8 (46.Nc8 Kb8 47.Nd6 hg3 48.hg3+-) 1–0. Waechter,Thomas – Rutschke,Bernhard, JBLN Ost, 1999. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nc3 e6)

5.Bb5 Ba6 6.Qe2 Bb5 7.Qb5 (7.Nb5 Nc6=) 7...a6 8.Qa4 Nc6 9.Nf3 Nf6 (9...Bd6 10.Bb2=) 10.Rb1 (10.e5 Nd5+=) 10...a5 (10...Bd6!?=) 11.0-0 Rb8 12.Bb2?? forfeits the advantage (better is 12.Ba3+/-) 12...Rb4-/+ 13.Qa3 Ne4 (better is 13...Nd4!? 14.Na4 Qb8 (14...Ne4?! 15.Bd4 cd4 16.Rb4 ab4 17.Qb2+=; 14...Nc2?! is the weaker alternative 15.Qd3 Nd4 16.Bd4 cd4 17.e5=) 15.Bd4 Rb1 (15...cd4?! 16.Rb4 ab4 17.Qd3=) 16.Bf6 Rf1 17.Kf1 Qb5 18.d3 gf6-+) 14.Ne4= Re4 15.c3 Consolidates b4+d4 (15.Qd3 f5=) 15...Ne5 (better is 15...Qb8!?-/+) 16.Ne5= Re5 17.c4 Rh5 18.Qg3 Qg5 Black threatens to win material: Qg5xd2 (18...Rg5 19.Qe3 Bd6 20.f4=) 19.Qc7 White threatens to win material: Qc7xa5 (better is 19.Qb8 Qd8 20.Bc3+/-) 19...Qh4?? (better is 19...Be7= this is the best way to fight back) 20.Be5 f6 21.Rb8 Kf7 22.Bg3 Qd4 23.Rd8 Ke7? 24.Qa5 Qc4? 25.Rb1?? allows the opponent back into the game 25...Qc2?? 26.Rf1 Rd5+= Black threatens to win material: Rd5xd2 27.Qa8? Qd2 28.Rc8 Qc2 29.h3 c4 30.Re1 Rd1 31.Rd1+= White has a mate threat 31...Qd1 32.Kh2 Qc2 33.f3 e5 34.Be1+= g5?? 35.Bb4+- Kf7 36.Rf8 Rf8 37.Qf8 Ke6 38.Qe7 Kf5 1–0. Siegel,Rainer – Eggert,Nils, Karl Mala Memorial op, 2001. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

5.Bb5 Bb7 6.Nf3 Nc6 7.Rb1 Nf6 8.Bc6 Bc6= 9.Ne5 Qc7 10.Nc6+= Qc6 11.Qe2 Be7 12.d3 0-0 13.Bf4 d6 14.0-0 Nd7 15.Nd5 Bd8 16.Ne3 Bc7 17.c4 Rfb8 18.Qg4 Nf6 19.Qh4 Bd8 20.Qh3= Rb6 21.e5 de5 22.Be5 Nd7 23.f4 f5 24.Rb6 ab6 25.Bg7? Kg7-+ 26.Rf3 Nf6 27.Rg3 Kf7 28.Qh6 Ra2?? 29.Qg7 Ke8 30.Nf5 ef5 31.Re3 Ne4! 32.de4 Qe6 33.Qh7 Be7 34.Qf5 Qf5 35.ef5=+ Kf7 36.g4 Bf6 37.Re6 Bd4 38.Kh1 b5 39.cb5+/- c4 40.b6 c3=+ 41.Rc6 c2 42.Rc7 Ke8 43.b7 Ba7 44.g5 Ra1=+ 45.Kg2 c1Q 46.Rc1 Rc1 47.Kg3 Bb8 48.f6 Kf7 49.Kg4 Rf1 50.h4 Rf4 51.Kh5 Rd4 52.g6 Kf6 53.g7 Kg7 (53...Kg7 54.Kg5 Rb4-+) 0–1. Osman,M (2135) – Tikhomirov,S (2355), Winter Cup Bucharest ROM (8), 2001.

5.Bb5 Qc7 6.Nf3 Nc6 7.0-0 Nf6 8.Re1 d6 9.Nd5!+/- Qd7 10.Bb2 Ng8 11.e5 Bb7 12.ed6 Qd6 13.Ne5 Qd5+= 14.c4 Qd6 15.Qf3 Nge7? 16.Nf7 Qd7 17.Nh8 0-0-0 18.Nf7 Re8 19.Bc3 Ng6 20.Ne5 Nge5 21.Be5 g5 22.d4! cd4 23.Bd4! Bd6 24.Rad1 Qc7 25.Qh3 Kb8 26.c5 Bf4 27.Be3 Be5 28.Be2 Bc3 29.Rf1 Ne5 30.Rb1 Ka8 31.Rb3 Ba5 32.Bd4 Bd5 33.Be5 Qe5 34.Bf3 Bc7 35.Bd5 ed5 36.Re3 (36.Re3 Qh2 37.Qh2 Bh2 38.Kh2+-; 36.Qh7 Rh8 37.Qh8 Qh8-/+) 1–0. Aguero,A – Esplana,Christian, PER–ch U20 Peru (2), 1996.

5.Nf3 a6 6.d4 cd4 7.Nd4 Qc7 8.Bd2 Nf6 9.Bd3 Bb4 10.Nde2 Bb7 11.0-0 Bc5 12.Rb1 Bc6 13.e5 Ng4=+ 14.Ne4 Be4 15.Be4 Nc6 16.Nf4 f5 17.ef6 Nf6 18.Nh5?? Ne4-+ 19.Ng7 Kf7 20.Qh5 Kg7 21.Bh6 Kf6 22.Qh4 Kg6 23.Bf4?? e5 24.Qg4 Kf7 25.Qh5 Ke7 26.Qh4 Nf6 27.Bg5 Raf8 28.Kh1 h6! 29.Bd2 Nd4 30.f4 e4 31.Rfe1 Kf7 32.Qh3 h5 33.Be3 Rb8 34.Rbd1 Ng4 (34...Ng4 35.Rd4 d5-+ (< 35...Bd4 36.Bd4 Qc2 37.Qg3-+)) 0–1. Vogiatzis,Dimitrios (1965) – Huettl,Guenther (2085), Regionalliga NO9495 (2), 1995.

5.Nf3 Nc6 6.Rb1 Nd4 7.Bd3 Nf6 8.e5+- Ng4 9.Nd4 cd4 10.Qg4 dc3 11.Qe4 cd2 12.Bd2 d5 13.ed6! Bd7 14.Bf4 Rb8 15.0-0 Rb6 16.Rb6 Qb6 17.Qa8 Qd8 18.Qa7 g6 19.Rb1 Bg7 20.Rb8 Bc8 21.Bb5 (21.Bb5 Kf8 22.Qe7 Kg8 23.Qd8 Bf8 24.Bh6 Bd7 25.Qf8) 1–0. pereira – alc_rabie, internet, 2011.

5.Nf3 Nc6 6.Rb1 Be7 7.Bc4 Nf6 8.e5 Ng4 9.Qe2 f6 10.Qe4 f5 11.Qe2 0-0 12.0-0 Qc7 13.Re1 Rb8 14.Nb5 Qd8 15.Rb3 (better 15.h3!? Nh6 16.d4+=) 15...Na5=+ 16.h3 Nb3 17.ab3 Nh6 18.d4 cd4 (18...f4 19.d5 Qb6 20.Nc3=) 19.Nfd4 (19.Bh6 gh6 20.Rd1 Qa5=) 19...Bc5 (19...a6!? 20.Nc3 Nf7-/+) 20.Rd1= Qh4 21.c3 (21.Be3 Qe7 22.Bh6 gh6=) 21...Nf7=+ 22.b4 Bb6 23.Nf5 (better 23.Nf3!? Qh5 24.Bf4=+) 23...Qf2!-+ (worse 23...ef5 24.Nd6 Bb7 25.Qa2=+) 24.Qf2 A pinning theme 24...Bf2 25.Kf2 Ne5 26.Be2 Rf5 (26...ef5?! 27.Bf4 Ba6 28.Be5 Bb5 29.Bb8 Rb8 30.Rd5+=) 27.Ke1 Ba6 28.Nd6 Be2 29.Ke2 Rff8 30.Be3 a6 ½–½. Shailesh,Dravid (2245) – Velez Romero,J (1980), Reykjavik Open, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

5.Nf3 Nc6 6.Bb2 Rb8 7.Rb1 d6 8.d4 (8.Bb5 Bd7+=) 8...Nd4 9.Nd4 cd4 10.Qd4 Nf6 (10...Qa5!?+=) 11.Qa7+/- Bd7 12.Bd3 Be7 13.0-0 0-0 14.Qe3 Qa5 15.Bc4 (15.Qe1!? Qh5 16.a4+/-) 15...Rb2= 16.Rb2 Rc8 17.Qd4 Qc7 18.Bb5 e5 19.Qd3 Qc3 20.Qc3 Rc3 21.Bd7 Nd7 22.Rb7 Nc5 23.Re7 g5 24.f3 Rc2 25.Rd1 Ra2 26.Rd6 Ne6 27.Rdd7 h5?? (27...Nf4 28.g4 Nh3 29.Kf1 Rf2 30.Ke1 Rf3 31.Re5 h6+-) 28.Re8 1–0. Vetoshko,Volodymyr (1985) – Kozel,Roman (2360), Chervonograd IM–A, 2008. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nc3 e6)

5.Nf3 Nc6 6.d4 d6 (6...cd4 7.Nd4 Bb4 8.Ndb5=) 7.dc5 (7.Bb5 Bd7+-) 7...dc5 (7...Qa5 8.Bd2 Qc5 9.Nb5+=) 8.Bb5 (8.Qd8!? Kd8 9.Bf4+-) 8...Bb7 (8...Qd1 9.Nd1 Bd7 10.Be3=) 9.Bc6 (9.Qd8 Rd8 10.Ne5 Rc8+-) 9...Bc6= 10.Qd8 (10.Qe2 Qc7=) 10...Rd8 11.Ba3 (11.Ne5 Ba8=) 11...Be7 (11...Nf6 12.Nd2=+) 12.Ne5= Bb7 (12...Bf6 13.f4 Be5 14.fe5=) 13.f3 (13.Rb1 Ba8 14.Ke2=) 13...Nf6 (13...Bf6 14.f4 g5 15.Rb1 (15.Bc5? gf4 16.Rb1 Ba8-+) 15...gf4 16.Rb7 Be5 17.Na4=) 14.Na4 (14.Rb1 Ba8 15.Na4 Rc8+=) 14...Nd7 (better 14...Rd4!? 15.Nc5 Ne4=) 15.Nd7+- Rd7 16.Bc5 (16.Rb1 c4 17.Nc5 Bc5 18.Bc5 f5 19.ef5 ef5 20.Ba7 Kf7+=) 16...Bc5 (16...Bf6!? 17.Rb1 Bc6=) 17.Nc5+- Rc7 18.Nb7 Rb7 19.0-0-0 0-0 (19...Ke7 20.Rd3+-) 20.Rd3 Rfb8 21.Rb3 Rb3 (21...Kf8 22.Kd2+-) 22.ab3+- Rb5 (22...Kf8 23.Kd2+-) 23.Rd1 Kf8 24.Rd3 (24.Rd7 Ra5+-) 24...a5 (24...Ke7 25.Kd2+-) 25.Kb2 (25.Rd7 Rh5 26.h3 Rg5+-) 25...Ke7+- 26.c4 Rb6 (26...Rg5 27.g3+-) 27.Kc3 g6 (27...Rc6 28.f4+-) 28.Rd2 f5 (28...Rc6 29.e5 f6 30.ef6 Kf6 31.Ra2+-) 29.ef5 (29.Ra2 Ra6+-) 29...gf5 30.Ra2 Ra6 31.b4 (better 31.c5!?+-) 31...ab4+- 32.Kb3 Ra2 33.Ka2 Kd6 (33...e5 34.Kb3+-) 34.Kb3 Kc5? (better 34...e5!? 35.Kb4 e4+-) 35.f4 h6 (35...h5 36.h4 e5 37.fe5 f4+-) 36.h4 h5 37.g3 Kd4 38.Kb4 e5 39.fe5 Ke5 40.c5 Kd5 41.Kb5 1–0. Cirovic,Zeljko – Barradas,Anderson, FICGS, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

5.f4 a6 A) 6.Rb1 A1) 6...d5 7.a3 (7.e5 Ne7 8.Be2 Nbc6 9.Nh3 Nf5 10.0-0 Ncd4 11.Nf2 Qh4 12.Bg4=; 7.Nf3 Nc6 8.e5 Nge7 9.Bb2 Ng6 10.Ne2 Rb8 11.h4 h5 12.g3+=; 7.Bb2 d4 8.Nce2 Nc6 9.Nf3 Nf6 10.e5 Nd5 11.c4 Nb6 12.Nc1=) 7...Nc6 8.Nf3 d4 9.Ne2 Nf6 10.e5 Ne4 11.Ng3 Ng3 12.hg3=; A2) 6...Ne7 7.Nf3 (7.Ba3 Ng6 8.f5 ef5 9.ef5 Ne5 10.Nf3 Nbc6 11.Be2 d5 12.Ne5+=; 7.Nge2 d5 8.d4 Nd7 9.a3 Ra7 10.Bb2 Rb7 11.Qd2 c4 12.Ng3=; 7.Bb2 d5 8.Nf3 d4 9.Ne2 Qc7 10.d3 Ng6 11.g3 Nc6 12.c3=) 7...d5 8.Bb2 d4 9.Ne2 Ng6 10.g3 Qa5 11.Bg2 Qa2 12.Nfd4+=; A3) 6...Qc7 7.Nge2 (7.Qf3 Nc6 8.Nh3 Nd4 9.Qd3 Ne7 10.e5 Nef5 11.Ne4 Bb7 12.Nhf2=; 7.d3 Bb7 8.Nf3 d5 9.ed5 ed5 10.d4 Nf6 11.Bd3 Nc6 12.0-0=; 7.Nh3 Bb7 8.Bc4 Nf6 9.d3 Nc6 10.0-0 Na5 11.e5 Nc4 12.dc4=) 7...Bb7 8.Ba3 Be7 9.Ng3 Nf6 10.e5 Nd5 11.Nd5 Bd5 12.Qg4+=; A4) 6...Nc6 7.Ba3 (7.Be2 d5 8.e5 Nge7 9.Nh3 Nf5 10.0-0 Ncd4 11.Bb2 Rb8 12.Bd3=; 7.Nf3 d5 8.e5 Nge7 9.Ne2 Nf5 10.Bb2 Be7 11.Nc3 d4 12.Na4+=; 7.Bc4 Nge7 8.Qh5 Nd4 9.Rb2 d6 10.Nge2 g6 11.Qh3 Bg7 12.Nd4=) 7...d5 8.Be2 Nb4 9.ed5 ed5 10.Bf3 Nf6 11.Bb2 Bf5 12.d3=; B) 6.Bc4 B1) 6...Ne7 7.Qf3 (7.Qe2 Nbc6 8.Nf3 Nd4 9.Nd4 cd4 10.Nd1 d5 11.Bd3 Rb8 12.e5=; 7.Qh5 Nbc6 8.Rb1 Nd4 9.Rb2 d6 10.Nge2 g6 11.Qh3 Bg7 12.Nd4=; 7.Bb2 d5 8.ed5 ed5 9.Qf3 Bb7 10.Rb1 Bc6 11.Bb3 d4 12.Ne4+=) 7...Nbc6 8.Nge2 Nb4 9.Bb3 c4 10.Ba4 Rb8 11.Rb1 Qa5 12.0-0+=; B2) 6...Nc6 7.Rb1 (7.Nf3 Nge7 8.0-0 d5 9.Bb3 Rb8 10.d3 d4 11.Ne2 Ng6 12.f5=; 7.Bb2 Nge7 8.Qh5 Nd4 9.Bb3 c4 10.Ba4 Ng6 11.Nh3 Rb8 12.Rb1=; 7.Ba3 Na5 8.Bd3 Rb8 9.Nf3 Nc6 10.Rb1 Rb1 11.Qb1 Qc7 12.e5=) 7...Nge7 8.Qh5 Ng6 9.Nh3 Nd4 10.Rb2 d6 11.0-0 Be7 12.f5+=; B3) 6...d6 7.Bb2 (7.Rb1 Ne7 8.Qe2 Nbc6 9.Nf3 Nd4 10.Nd4 cd4 11.Nd1 d5 12.Bb3=; 7.Nf3 Nf6 8.0-0 Ne4 9.Ne4 d5 10.Qe2 dc4 11.Qc4 Qd5 12.Qe2=) 7...Nf6 8.e5 Nfd7 9.ed6 Nb6 10.Bd3 Bb7 11.Be4 Nc6 12.Rb1+=; B4) 6...Nf6 7.e5 d5 8.Be2 Nfd7 9.Rb1 g5 10.d3 gf4 11.Bf4 Nc6 12.Nf3+=; C) 6.e5 C1) 6...Nc6 7.Bb2 (7.Rb1 d5 8.Nf3 Nge7 9.Ne2 Nf5 10.c3 Qa5 11.Rb2 Be7 12.d3=) 7...Bb7 8.Rb1 Nd4 9.Nce2 Qh4 10.Ng3 Bd5 11.c4 Be4 12.d3=; C2) 6...d5 7.Be2 (7.a3 Nd7 8.Rb1 g5 9.fg5 Ne5 10.Nh3 h6 11.d4 Qa5 12.Qd2+=; 7.Rb1 Nc6 8.Nf3 Nge7 9.Ne2 Nf5 10.Bb2 Be7 11.Nc3 d4 12.Na4+=; 7.Ba3 Qa5 8.Bc1 Nc6 9.Be2 Rb8 10.Nf3 Nge7 11.Ng5 Ng6 12.Bh5+=) 7...Ne7 8.Rb1 Nbc6 9.Nh3 Nf5 10.0-0 Ncd4 11.Bb2 Ne2 12.Qe2=; D) 6.Nf3 D1) 6...Nc6 7.Bd3 (7.Bc4 Nge7 8.0-0 d5 9.Bb3 Rb8 10.d3 d4 11.Ne2 Ng6 12.f5=; 7.Bb2 d5 8.Rb1 d4 9.Ne2 Nf6 10.e5 Nd5 11.a3 Qa5 12.Qc1+=; 7.Rb1 d5 8.a3 d4 9.Ne2 Nf6 10.e5 Ne4 11.Ng3 Ng3 12.hg3=) 7...Rb8 8.0-0 Qf6 9.f5 ef5 10.ef5 Nd4 11.Nd4 Qd4 12.Kh1=; D2) 6...Ne7 7.Rb1 (7.Bb2 d5 8.Rb1 d4 9.Ne2 Ng6 10.h4 h5 11.g3 Nd7 12.Bg2=; 7.Be2 Qc7 8.d3 d5 9.0-0 d4 10.Na4 Ng6 11.Rb1 Nc6 12.Qd2=; 7.a3 Qc7 8.d3 d5 9.Rb1 Nbc6 10.Be2 d4 11.Na2 Ng6 12.Qd2=) 7...d5 8.Bb2 d4 9.Ne2 Ng6 10.g3 Qa5 11.Bg2 Qa2 12.Nfd4+=; D3) 6...d5 7.e5 (7.Rb1 Nc6 8.e5 Nge7 9.Bb2 d4 10.Na4 Nd5 11.g3 Qa5 12.c3+=) 7...d4 8.Ne4 Bb7 9.Nfg5 Nh6 10.Be2 Be7 11.Bf3 c4 12.Nd6=; D4) 6...Qc7 7.d3 (7.e5 d6 8.Bb2 Bb7 9.Rb1 Nd7 10.Qe2 de5 11.fe5 Rb8 12.Ne4=; 7.f5 ef5 8.ef5 Be7 9.Bb2 Nf6 10.Bc4 Bb7 11.0-0 d5 12.Bb3+=; 7.g3 Bb7 8.Bg2 Nf6 9.e5 Nd5 10.Nd5 Bd5 11.Qe2 c4 12.Bb2=) 7...Ne7 8.e5 Nf5 9.g4 Nh6 10.Bh3 Bb7 11.Rb1 Nc6 12.Ne4=.

5.f4 Ba6 A) 6.Ba6 Na6 7.d3 (7.Nf3 Qf6 8.d4 cd4 9.Qd4 Nb4 10.Qd2 Bc5 11.Ne5 Bd4 12.Rb1=; 7.Rb1 Rb8 8.Rb8 Nb8 9.Nf3 Qf6 10.g3 Nc6 11.Bb2 Be7 12.0-0=; 7.Nge2 Qh4 8.g3 Qh3 9.Rb1 Qg2 10.Rf1 Qh2 11.Rf2 Qh5 12.Rb7+=) 7...Qh4 8.g3 Qe7 9.Nge2 Rb8 10.0-0 Nc7 11.e5 d5 12.ed6=; B) 6.Nf3 B1) 6...Qf6 7.d4 (7.g3 Bf1 8.Rf1 d5 9.Ne5 d4 10.Nb5 Qd8 11.Qh5 Nh6 12.g4=; 7.Ba6 Na6 8.d4 cd4 9.Qd4 Nb4 10.Qd2 Bc5 11.Ne5 Bd4 12.Rb1=) 7...cd4 8.Ba6 Na6 9.Qd4 Rb8 10.Ne5 Rb7 11.Rb1 Bb4 12.Ke2+=; B2) 6...Nf6 7.Be2 (7.Ba6 Na6 8.e5 Ng4 9.Qe2 Nb4 10.d3 d5 11.ed6 Bd6 12.a3+=; 7.Bb2 Bf1 8.Rf1 Nc6 9.Ne5 Nd4 10.Rb1 Rb8 11.Nf3 d5 12.ed5=; 7.d3 d5 8.e5 Nfd7 9.Be2 c4 10.dc4 Bb4 11.Bd2 Bc4 12.Bc4+=) 7...d5 8.ed5 Nd5 9.Nd5 Qd5 10.c4 Qd7 11.Ne5 Qc7 12.Bf3+- 1.69; B3) 6...Be7 7.Ba6 (7.Rb1 Bf1 8.Rf1 d5 9.Kf2 Nf6 10.d3 d4 11.Nb5 a6 12.Na3=; 7.Bb2 Bf1 8.Rf1 Nf6 9.e5 Ng4 10.h3 Nh6 11.Qe2 0-0 12.Rb1=; 7.Be2 d5 8.ed5 ed5 9.0-0 Nf6 10.Ba6 Na6 11.Re1 d4 12.Ne5=) 7...Na6 8.Rb1 Nf6 9.e5 Ng4 10.0-0 d5 11.ed6 Qd6 12.Qe2+=; B4) 6...Bf1 7.Rf1 Nc6 8.Rb1 Nf6 9.e5 Ng4 10.h3 Nh6 11.Kf2 d5 12.Kg1=; C) 6.Nge2 C1) 6...Nc6 7.Rb1 (7.Bb2 d5 8.Rb1 d4 9.Na4 c4 10.Ba1 Qa5 11.c3 d3 12.Nd4+=; 7.g3 d5 8.Bg2 d4 9.e5 Rc8 10.Ne4 Nb4 11.Nf2 Be2 12.Ke2=; 7.d3 d5 8.Rb1 d4 9.Nb5 Rb8 10.c4 dc3 11.Qa4 Bb5 12.Rb5=) 7...d5 8.ed5 ed5 9.Ng3 Bf1 10.Rf1 Be7 11.Nf5 Bh4 12.g3=; C2) 6...Be7 7.Bb2 (7.Rb1 d5 8.ed5 ed5 9.d4 Nf6 10.Be3 c4 11.g3 0-0 12.Bg2+=; 7.d4 cd4 8.Qd4 Nc6 9.Qa4 Be2 10.Be2 Bb4 11.Bd2 Rb8 12.Nb5+=; 7.e5 d6 8.ed6 Bd6 9.Rb1 Nf6 10.g3 Nc6 11.Bg2 Qd7 12.d4=) 7...d5 8.Nd5 ed5 9.Bg7 Bf6 10.Bh8 Bh8 11.e5 f6 12.Nc3+=; C3) 6...Nf6 7.e5 (7.Rb1 d5 8.e5 Nfd7 9.d3 Nc6 10.Qd2 Be7 11.a3 0-0 12.Ng3+=; 7.Bb2 d5 8.e5 Nh5 9.g3 Nc6 10.Rb1 Rb8 11.Bg2 g5 12.Ng1=; 7.d3 d5 8.e5 Nfd7 9.Ng3 Nc6 10.Be2 Rb8 11.0-0 c4 12.dc4=) 7...Nd5 8.Nd5 ed5 9.Nc3 Bf1 10.Rf1 d4 11.Nd5 Nc6 12.Rb1=; C4) 6...d5 7.Rb1 (7.ed5 ed5 8.d4 Nf6 9.Be3 c4 10.Rb1 Ba3 11.Ng3 Nc6 12.Kf2+=; 7.e5 Nc6 8.d3 Rb8 9.Ng3 Qc7 10.Bd2 g5 11.fg5 Bg7 12.Rb1+=; 7.a4 d4 8.Nb5 Bb7 9.d3 a6 10.Na3 Nc6 11.Rb1 Rb8 12.Nc4=) 7...d4 8.Nb5 Nc6 9.Ng3 Rb8 10.c4 Bc8 11.Rb2 Rb6 12.Be2=; D) 6.Be2 D1) 6...Qh4 7.g3 Be2 8.Qe2 Qe7 9.Nf3 Nc6 10.Rb1 Nf6 11.e5 Nd5 12.Ne4+=; D2) 6...Nf6 7.Nf3 (7.e5 Be2 8.Qe2 Ng8 9.Nf3 d5 10.ed6 Bd6 11.Qe4 Nd7 12.Nb5+/-; 7.d3 d5 8.e5 Nfd7 9.Nf3 c4 10.dc4 Bb4 11.Bd2 Bc4 12.Bc4=; 7.Rb1 Be2 8.Nge2 d5 9.e5 Ng4 10.h3 Nh6 11.0-0 Be7 12.Rb7=) 7...d5 8.ed5 Nd5 9.Nd5 Qd5 10.c4 Qd7 11.Ne5 Qc7 12.Bf3+- 1.69; D3) 6...Be2 7.Nge2 (7.Qe2 Nc6 8.Rb1 Qf6 9.Qf2 d5 10.ed5 Nb4 11.de6 Qe6 12.Kd1=) 7...Qh4 8.g3 Qh3 9.Ng1 Qg2 10.Qf3 Qf3 11.Nf3 Nc6 12.Rb1+=; D4) 6...Be7 7.Rb1 Be2 8.Nge2 d5 9.0-0 d4 10.Nb5 Nf6 11.e5 Nd5 12.c4=.

5.f4 Qc7 6.Nge2 A) 6...Bb7 7.Rb1 (7.d3 d5 8.Rb1 a6 9.Ng3 d4 10.Nce2 h5 11.Ng1 Nf6 12.Nf3=; 7.e5 Nc6 8.Nb5 Qa5 9.Rb1 Rb8 10.a3 Nh6 11.Ng3 a6 12.Nd6=; 7.a3 d5 8.ed5 ed5 9.Rb1 d4 10.Nb5 Qd7 11.a4 Bc6 12.Ng3+=) 7...d5 8.ed5 ed5 9.d4 Nf6 10.f5 c4 11.Bf4 Qc6 12.Ng3=; B) 6...Nf6 7.e5 (7.Rb1 d5 8.e5 Nfd7 9.Ng3 Nc6 10.Bb2 Rb8 11.Nb5 Qa5 12.Bc3=) 7...Nd5 8.Nd5 ed5 9.Nc3 Bb7 10.Qf3 d4 11.Nd5 Qc8 12.Bc4+=; C) 6...Qc6 7.Rb1 (7.Bb2 d5 8.Ng3 a6 9.Rb1 d4 10.Nce2 Nd7 11.d3 Qa4 12.c3=; 7.Ng3 a6 8.Bc4 Nf6 9.Qf3 Bb7 10.Rb1 h5 11.0-0 h4 12.Nge2+=; 7.d4 d5 8.dc5 Nf6 9.e5 Nfd7 10.Nd4 Qc5 11.Ncb5 Ba6 12.Ba3+=) 7...d5 8.Ng3 a6 9.Be2 Ne7 10.Bf3 d4 11.e5 Nd5 12.Nd5+/- 1.28; D) 6...Ne7 7.Bb2 (7.Rb1 d5 8.e5 Ba6 9.a4 Nf5 10.Nb5 Qd8 11.d3 Nc6 12.g4=; 7.e5 Nf5 8.Rb1 Bb7 9.Ng3 Ng3 10.hg3 a6 11.Bb2 Nc6 12.Ne4=; 7.Nb5 Qc6 8.Rb1 a6 9.Nbc3 d5 10.Ng3 d4 11.Nce2 Nd7 12.d3=) 7...d5 8.Rb1 d4 9.Nb5 Qd7 10.Ng3 a6 11.Na3 Qc7 12.Qf3=.

5.f4 Qc7 6.e5 a6 7.Nf3 d6 8.Be2 (8.Bb2 Bb7 9.Rb1 Nd7 10.ed6 Qd6 11.g3 Rb8 12.Bg2= –0.06) 8...Nc6 9.0-0 (9.ed6 Bd6 10.Ne4 Bf4 11.Nc5 Nf6 12.Bb2= 0.00) 9...de5 10.fe5 Ne5 11.Ne5 (11.Ne4 Rb8 12.d3+= –0.59) 11...Qe5 12.Bf3 (12.Bb2+= –0.56) 12...Ra7 13.Bc6 Bd7 14.Qf3 Qd4 15.Kh1 Nf6 16.Rb1 Be7 17.Bb2 (better is 17.Rb8!? Bd8 18.Ne4=) 17...Bc6-/+ 18.Qc6 Qd7 19.Qf3 0-0 (19...Qd2 20.Ne4 Qd8 21.Nf6 gf6 22.Be5+=) 20.Ne4 Ne4 21.Qe4 Qd5 22.Qg4 Qg5 23.Qe2 Rd8 24.Bc3 Qd5 25.a4 Rc8 26.a5 c4 (26...Bg5 27.Rb6+=) 27.Rf4 (better is 27.Rf7! Kf7 28.Qf2 Kg8 29.Qa7+/-) 27...Bd6 28.Rg4 g6 29.Qf2 Rb7 30.Rf1 Be5 31.Rg5 f5 32.Be5 Qe5 33.Re1 Qf6 34.Qg3 (34.Rg3 Rb5-+) 34...Rd7 35.h4 Rd4 36.h5 Kg7 37.hg6 hg6 (37...Rd2? 38.gh7 Kf7 39.Rg8+-) 38.Qe3 Rcd8 39.Re2 R8d7 40.Kg1 Re4 (40...Re4 41.Rg6 Kg6 42.Qg3 Qg5-+) 0–1. Strater,H (2060) – Stroehle,B (1870), 10th Neumarkt am Wallersee Open, 2011.

5.f4 Qc7 6.Qf3 A) 6...Bb7 7.Bb2 (7.Bc4 Nc6 8.Rb1 Nd4 9.Qd3 f5 10.Nf3 Nf6 11.Nd4 cd4 12.Qd4+=; 7.Rb1 Nc6 8.Nb5 Qd8 9.Bb2 Nb4 10.Be5 f6 11.Bc7 Qc8 12.Rb2+=; 7.Nge2 Nf6 8.Rb1 Na6 9.a3 Rb8 10.Ng3 c4 11.Nb5 Qc5 12.d4=) 7...Nc6 8.Nh3 Nd4 9.Qd3 e5 10.Rb1 ef4 11.Be2 Bd6 12.Nb5+/-; B) 6...Nf6 7.Nb5 (7.Bb2 Bb7 8.Bc4 Nc6 9.Nb5 Qd8 10.Bf6 gf6 11.Rb1 Rb8 12.Nh3=; 7.Rb1 Bb7 8.Bc4 Nc6 9.Nge2 a6 10.a3 Nd4 11.Qd3 d5 12.ed5=; 7.g4 Na6 8.g5 Ng8 9.Rb1 Nb4 10.Rb2 Bb7 11.a3 Nc6 12.Nb5=) 7...Qa5 8.e5 Nd5 9.c4 a6 10.Nd6 Bd6 11.cd5 Bf8 12.de6+- 1.63; C) 6...Ba6 7.Be2 (7.Nb5 Bb5 8.Bb5 Nc6 9.e5 Nge7 10.Ne2 Rb8 11.Ba4 Rb4 12.Bb3=; 7.Nge2 Nc6 8.Rb1 d6 9.a3 Nf6 10.Nb5 Bb5 11.Rb5 Rb8 12.Rb8=; 7.Ba6 Na6 8.Rb1 Nb4 9.Rb2 Rb8 10.a3 Nc6 11.Nge2 Rb2 12.Bb2=) 7...Bb7 8.Rb1 Nc6 9.Nb5 Qd8 10.Bb2 d5 11.f5 d4 12.fe6+=; D) 6...Nc6 7.Nb5 (7.Nge2 Rb8 8.a3 d6 9.Rb1 Rb1 10.Nb1 Nf6 11.Nbc3 Nd4 12.Qd3=; 7.Nh3 Nd4 8.Qd1 Bb7 9.Rb1 Rb8 10.Bb2 Be7 11.Bc4 Nf6 12.d3+=; 7.e5 Rb8 8.Nb5 Qa5 9.Na3 Bb7 10.Nc4 Qd8 11.Qg3 Nd4 12.Ne3+=) 7...Qa5 8.Qa3 Qd8 9.Qa4 a6 10.Nc3 Rb8 11.a3 Nd4 12.Nce2=.

5.f4 Qc7 6.Nh3 A) 6...Bb7 7.Qf3 (7.Bb2 Nf6 8.e5 Nd5 9.Nd5 Bd5 10.c4 Be4 11.Ng5 Qb7 12.Ne4=; 7.Bc4 Nf6 8.d3 d5 9.Bb5 Nc6 10.0-0 a6 11.Ba4 Be7 12.e5=; 7.Rb1 Nf6 8.e5 Nd5 9.Bb2 Nc3 10.Bc3 Bd5 11.a3 Nc6 12.Qg4=) 7...Nc6 8.Bb2 Nd4 9.Qd3 e5 10.Rb1 ef4 11.Be2 Bd6 12.Nb5+/-; B) 6...Ba6 7.Ba6 (7.Rb1 Bf1 8.Rf1 Nc6 9.Bb2 Rb8 10.Kf2 c4 11.Kg1 Bc5 12.Kh1=) 7...Na6 8.Rb1 Rb8 9.Rb8 Qb8 10.Qe2 Nb4 11.d3 Nc6 12.0-0+=; C) 6...Be7 7.Rb1 (7.Qg4 Bf6 8.e5 Nh6 9.Qh5 Be7 10.Rb1 Nc6 11.Ng5 Rb8 12.Rb8=; 7.Be2 Bb7 8.0-0 Nf6 9.e5 Nd5 10.Nd5 Bd5 11.c4 Bc6 12.Rb1=; 7.Bb2 Bb7 8.Qg4 Bf8 9.Bc4 Nf6 10.Qe2 Nc6 11.Nb5 Qd8 12.e5+=) 7...Nf6 8.e5 Nd5 9.Nd5 ed5 10.Qf3 Qc6 11.Bb5 Qe6 12.Bc4+/- 1.16; D) 6...Nc6 7.Rb1 (7.Bb2 Nd4 8.Bc4 Nf6 9.0-0 Qb7 10.Rb1 Ne4 11.Ne2 Qc6 12.d3+=; 7.Bb5 a6 8.Bc4 Rb8 9.0-0 Nf6 10.d3 Bb7 11.e5 d5 12.Ba6=) 7...Nd4 8.Bc4 Nf6 9.0-0 Rb8 10.Rb8 Qb8 11.e5 d5 12.ef6=.

5.f4 Be7 A) 6.Nf3 A1) 6...Nf6 7.e5 (7.Rb1 d5 8.e5 Ne4 9.Ne4 de4 10.Ng1 0-0 11.Ne2 Nc6 12.Nc3=; 7.d3 d5 8.e5 Nfd7 9.Be2 0-0 10.0-0 Nc6 11.Rb1 f6 12.ef6=; 7.Qe2 0-0 8.Rb1 d5 9.e5 Ng4 10.a3 Nc6 11.Ng5 Nge5 12.Nh7+=) 7...Ng4 8.Be2 d5 9.0-0 d4 10.Nb5 a6 11.Na3 0-0 12.Rb1+=; A2) 6...Qc7 7.d4 (7.Nb5 Qc6 8.e5 a6 9.Nc3 d5 10.Rb1 d4 11.Ne2 Bb7 12.Ng3=; 7.e5 d5 8.Rb1 Nh6 9.Be2 0-0 10.a3 c4 11.d3 cd3 12.Qd3=; 7.d3 Bb7 8.Rb1 d5 9.Nb5 Qd8 10.e5 Bc6 11.Be2 Nh6 12.0-0=) 7...cd4 8.Nb5 Qc6 9.e5 a6 10.Nbd4 Qc7 11.Bd3 d6 12.0-0+=; A3) 6...Nc6 7.Be2 (7.Bc4 Nf6 8.Rb1 d5 9.Bb5 Bd7 10.ed5 Nd5 11.Nd5 ed5 12.Bc6=; 7.Bb2 Nf6 8.Bb5 Nd4 9.Rb1 Bb7 10.Bd3 0-0 11.0-0 Rb8 12.Ng5=; 7.Rb1 Nf6 8.e5 Nd5 9.Nd5 ed5 10.c4 dc4 11.Bc4 d5 12.ed6=) 7...Rb8 8.0-0 d5 9.Bb5 Bd7 10.ed5 ed5 11.Re1 Nf6 12.Ne5=; A4) 6...d5 7.Bb5 (7.Rb1 d4 8.Bb5 Bd7 9.Ne2 Nf6 10.e5 Nd5 11.0-0 Bb5 12.Rb5=; 7.Ne5 d4 8.Bb5 Bd7 9.Nd7 Nd7 10.Ne2 Ngf6 11.e5 Nd5 12.0-0=; 7.e5 Nh6 8.Rb1 0-0 9.Be2 c4 10.d4 Nf5 11.Qd2 Nc6 12.0-0=) 7...Bd7 8.Bd7 Qd7 9.d3 d4 10.Ne2 Nf6 11.Ne5 Qc7 12.c3=; B) 6.Qg4 B1) 6...Bf8 7.Rb1 (7.Bb2 Nf6 8.Qf3 Nc6 9.Rb1 d5 10.e5 Nd7 11.Qd1 d4 12.Ne4=; 7.Bb5 a6 8.Bc4 Nc6 9.Rb1 Nf6 10.Qh4 d5 11.ed5 Na5 12.Be2=; 7.Qf3 Nc6 8.Bb2 Nd4 9.Qd3 d5 10.Rb1 Rb8 11.Nge2 Nc6 12.ed5=) 7...Nc6 8.Qd1 d5 9.Bb5 Nge7 10.Nf3 a6 11.Ba4 d4 12.Ne2+=; B2) 6...g6 7.Bb2 (7.Rb1 Nf6 8.Qf3 d5 9.Nge2 Nc6 10.e5 Nd7 11.Bb2 Bb7 12.Nb5=; 7.e5 Nc6 8.Rb1 d5 9.Nf3 d4 10.Bb5 Bd7 11.Bc6 Bc6 12.Ne2=) 7...Nc6 8.Qd1 Nf6 9.Rb1 0-0 10.e5 Nh5 11.Nh3 Bb7 12.Be2=; B3) 6...h5 7.Qh3 (7.Qf3 Nc6 8.Rb1 Nd4 9.Qd3 a5 10.Nce2 Ba6 11.c4 d5 12.ed5=; 7.Qe2 Ba6 8.d3 Nc6 9.Nf3 d5 10.ed5 Nd4 11.Qd1 Bf6 12.Ne5=; 7.Qd1 d5 8.Rb1 d4 9.Nce2 Ba6 10.Nh3 Nf6 11.e5 Ng4 12.c4=) 7...Nc6 8.Rb1 d5 9.Nf3 Nd4 10.Rb2 de4 11.Ne4 Nf6 12.Bd3=; C) 6.e5 C1) 6...Nh6 7.Rb1 (7.Be2 d5 8.ed6 Qd6 9.Bf3 Nc6 10.Ne4 Qf4 11.d4 Qc7 12.Bh6=; 7.Nf3 0-0 8.Bd3 d5 9.ed6 Qd6 10.Be4 Nc6 11.Ne5 Ne5 12.Ba8+=; 7.Bd3 Nc6 8.Rb1 0-0 9.Nf3 d5 10.ed6 Qd6 11.Be4 Rb8 12.Rb8=) 7...0-0 8.Qf3 Nc6 9.Ne4 d5 10.ed6 Nd4 11.Qc3 Bd6 12.Ba3+/-; C2) 6...Nc6 7.Qg4 (7.Rb1 Nh6 8.Nf3 0-0 9.Bd3 d5 10.ed6 Bd6 11.Qe2 Bd7 12.Nb5=; 7.Nh3 Rb8 8.Qg4 Bf8 9.Ng5 Nh6 10.Qd1 d6 11.Bb5 Bd7 12.ed6+=; 7.Nf3 Rb8 8.Be2 d5 9.0-0 Qa5 10.a4 c4 11.Kh1 Nh6 12.Ba3=) 7...Bf8 8.Rb1 d5 9.ed6 Nd4 10.Nb5 Nf6 11.Nc7 Qc7 12.dc7+=; C3) 6...Na6 7.Be2 (7.Rb1 Nb4 8.Nf3 Bb7 9.Be2 Rb8 10.a3 Nc6 11.0-0 d5 12.Bb5=; 7.Qg4 Bf8 8.Rb1 Nb4 9.Rb2 Nh6 10.Qh5 d5 11.a3 Nc6 12.Bb5=; 7.Nf3 Nh6 8.Bb5 Nc7 9.Ba4 Rb8 10.Ba3 Bb7 11.0-0 Nf5 12.Rb1=) 7...Rb8 8.Nf3 Nc7 9.d4 d5 10.ed6 Bd6 11.dc5 Bc5 12.Qd8+=; C4) 6...d5 7.ed6 (7.Qg4 Bf8 8.Rb1 Nh6 9.Qh5 Nc6 10.Nf3 d4 11.Bb5 Bd7 12.Ne4=; 7.Rb1 Nh6 8.Nf3 0-0 9.Be2 c4 10.d4 Nc6 11.Qd2 Nf5 12.0-0=; 7.Nf3 Nh6 8.Rb1 0-0 9.Be2 c4 10.d4 Nc6 11.Qd2 Nf5 12.0-0=) 7...Qd6 8.Qg4 Nf6 9.Qg7 Rg8 10.Qh6 Bb7 11.Nf3 Bf3 12.gf3=; D) 6.Rb1 D1) 6...Nc6 7.Be2 (7.Bc4 d6 8.Nf3 Nf6 9.Bb5 Bb7 10.Ba4 Qc8 11.Bb2 0-0 12.0-0=; 7.Bb2 Rb8 8.Bc4 Rb4 9.d3 Na5 10.a3 Rb6 11.Bb5 a6 12.Na4+=; 7.Nf3 Nf6 8.Be2 d5 9.e5 Ne4 10.Bb2 Rb8 11.Bb5 Bb7 12.0-0=) 7...d5 8.Bb5 Bb7 9.Ba4 Qd7 10.Nf3 f6 11.Nd5 ed5 12.Rb7+=; D2) 6...Nh6 7.Bc4 (7.Nf3 0-0 8.Bc4 d6 9.0-0 Nc6 10.Qe2 Bd7 11.Bb2 Rb8 12.a4+=; 7.Qh5 Nc6 8.Nf3 0-0 9.Bc4 Nd4 10.Rb2 Qc7 11.d3 Rb8 12.Nd4+=) 7...0-0 8.Nf3 Nc6 9.0-0 d6 10.Qe2 Bd7 11.Bb2 Rb8 12.a4+=; D3) 6...d6 7.Qg4 (7.Nf3 Nf6 8.Bb5 Bd7 9.e5 Nh5 10.d4 a6 11.Bd7 Nd7 12.0-0+=; 7.Bb2 Nf6 8.e5 de5 9.Qf3 Nd5 10.Nd5 Qd5 11.Qd5 ed5 12.Be5+/-; 7.Bb5 Bd7 8.Nf3 Nf6 9.e5 Nh5 10.d4 d5 11.Be2 Nc6 12.Be3+=) 7...Bh4 8.g3 Be7 9.Qg7 Bf6 10.Qg4 Bc3 11.dc3 Nf6 12.Qf3+/-; D4) 6...d5 7.Qf3 (7.ed5 ed5 8.Qf3 Nf6 9.Bb5 Kf8 10.f5 a6 11.Ba4 Nbd7 12.Nh3=; 7.Bb5 Bd7 8.Bd7 Qd7 9.d3 d4 10.Nce2 Nf6 11.Nf3 0-0 12.0-0=; 7.Qg4 Nf6 8.Qg7 Rg8 9.Qh6 de4 10.Bb2 Nc6 11.Nge2 Nb4 12.Rc1+=) 7...Nf6 8.Bb5 Bd7 9.ed5 Bb5 10.d6 Bc6 11.de7 Qd6 12.Qg3=.

5.g3 Nc6 6.Bg2 Ba6 7.Nge2 Nge7 8.0-0 Nd4 9.d3 Nec6 10.f4 Rb8 11.f5 Be7 12.Nf4 g6 13.Nce2 ef5 14.c3 Ne2 15.Qe2 fe4 16.Qe4 0-0 17.Nd5 f5 18.Qe2 Bg5 19.Bf4 Bf4 20.Nf4 Re8 21.Qf2 Qa5 22.Nd5 Kg7 23.Qf4 Re5 24.Ne3? Qc3-+ 25.Bc6 dc6 26.Ng4? fg4 27.Qf6 Kh6 28.Qf4 Kh5 29.Qf6 Qd4 30.Kh1 Rg5 0–1. Lauche,Christoph (1915) – Savchenko,Alek (2275), Sparkassen Open A, Dortmund GER, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

5.g3 d6 6.Bg2 Bb7 7.Rb1 Bc6 8.Nge2 a6 9.d4 cd4 10.Nd4 Qc7 11.0-0 Nf6 12.Qd3 Be7 13.Rb8 (13.f4 Bb7+=) 13...Rb8= 14.Nc6 Qc6 15.e5 Qc7 (better 15...d5!? 16.ef6 Bf6 17.Nd5 ed5 18.Bd5 Qc3 19.Qe2 Be5+/-) 16.ef6+/- Bf6 17.Ne4 Be7 18.Bf4 e5 19.Be3 0-0 (19...f5 20.Nc3+/-) 20.c4 (20.Nc3 Bd8+-) 20...Kh8 (20...Rb4 21.Nd2+/-) 21.g4 (21.Nc3 Qa5+-) 21...f6 (21...Rb4 22.Nd2+/-) 22.Rc1 Rb2 (22...Qd7 23.h3+/-) 23.Nc3 (23.Qa3 Rfb8 24.Qa6 Qc8 25.Qc8 Rc8+-) 23...Rfb8 24.Bd5 Bf8 25.h4 (25.Rb1 Rb1 26.Nb1 g6+/-) 25...Qd7 26.Qf5 Qf5 27.gf5 g6 28.Be4 gf5 29.Bf5 Bg7 30.Bc2 (30.Ne4 Bf8+/-) 30...Kg8 (30...R8b4 31.Bb3+/-) 31.Bb3 a5 (31...f5 32.Rd1 R2b3 33.ab3 Rb3 34.Nd5+-) 32.Nd1 (32.Rd1!?+-) 32...R2b3 33.ab3 Rb3 34.Nc3 f5 35.Nd5 f4 36.Bd2 a4 (36...Ra3!?+/-) 37.Ra1+- a3 38.Bb4 Rh3 (38...e4 39.Ra3 Ra3 40.Ba3+-) 39.Ra3 Rh4 40.Bd6 Rg4 41.Kf1 h5 (41...Kf7+-) 42.c5 h4 (42...f3 43.Rf3 Rd4 44.Ne7 Kh7+-) 43.c6 f3 44.c7 (better 44.Ne3 Rg6 45.c7 Kh7+-) 44...Rc4 45.c8R! Rc8 46.Ne7 Kh7 (46...Kf7 47.Rf3 Ke6 48.Nc8+-) 47.Nc8 h3 (47...Kh6 48.Rf3 Kg5 49.Be7 Kh5 50.Rf5 Kg6 51.Nd6+-) 48.Rf3 e4 49.Rh3 (49.Rh3 Kg6 50.Rh4+-) 1-0. opperwezen (2725) - HopeChessMaster (2045), 2017 Summer Marathon, lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

5.Rb1 Nc6

6.Nf3 Qc7 7.Bb2 a6 8.Bd3 Be7 9.0-0 Nf6 10.e5 (10.Re1!?+=) 10...Ne5=+ 11.Ne5 Qe5 12.Re1 Qc7 13.Ne4 Ne4 14.Be4 d5 15.Bd3 (15.Bf3 0-0=+) 15...d4 (15...c4 16.Be5 (16.Bg7? cd3 17.Qh5 dc2-+) 16...Bd6 17.Bd6 Qd6 18.Bf1-/+) 16.Qh5 (16.c3 Bd6 17.g3 Bb7=) 16...g6 17.Qh6 Bb7 18.Be4 (18.Qg7 Rf8=+) 18...Be4-/+ 19.Re4 Rb8 20.Ree1 Bf6 21.Ba3 Rb1 22.Rb1 Ke7 (22...Qa5 23.Qh3-/+) 23.Qh3 Rd8 24.Qb3 (24.Qd3 Qa5 25.Qf3 Rd7-/+) 24...Rd5 25.Qb7 (25.Qd3 Rh5 26.h3 Qc6-/+) 25...Qb7 26.Rb7 Kd6 (26...Ke8 27.d3-/+) 27.g3 (27.Rf7 Rf5 28.Rh7 d3 29.cd3 Bd4=) 27...Be7 28.d3 e5 29.Rb6 Kd7 30.Ra6 Rd6?? (better 30...h5=+) 31.Ra7+/- Ke6 32.Bc5 1-0. tenemeelnene (2530) - opperwezen (2710), Weekly HyperBullet Arena, lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

6.Nf3 d6 7.d4 cd4 8.Nd4 Nd4 9.Qd4 a6 10.Bc4 Qc7 11.0-0 Nf6 12.Bb2 (12.Rb3 Nd7+=) 12...Be7= 13.Rbd1 (13.Ba3 0-0+=) 13...0-0 14.Bb3 Bb7 15.Qe3 Rfd8 16.Qg3 Rac8 17.Rfe1 Ne8 18.Nd5?? (better 18.Rd4=) 18...ed5-+ 19.ed5 Bf8 20.h4 (20.c4 Rd7-/+) 20...g6-+ 21.h5 Bg7 22.Bg7 Ng7 23.h6 Nf5 (better 23...Nh5!? 24.Qe3 f5-+) 24.Qf4=+ Qc3 (24...Re8 25.Re8 Re8 26.g4 Nh6 27.Qh6=+) 25.g4 Nh4 (better 25...Nh6 26.Qh6 Re8=+) 26.Re3+/- Qh8 27.Rde1?? (27.Re7 Rf8 28.Rb7 Qc3+-) 27...Rf8 (27...g5 28.Qg5 Ng6 29.Re7=) 28.Re7 (better 28.Qg5!? Rc3 29.Qh4 Re3 30.Re3 Qa1 31.Kg2+/-) 28...Qc3 (better 28...Rb8!?=+) 29.R1e3+= Qa1 30.Kh2 Qb1?? Attacks the backward pawn on c2 (better 30...Ba8 31.Qg5 Rc5+=) 31.Qf6 (31.Rb7?! Qf1 32.Rg3 Rce8+-) 31...Nf5 (31...Qg1 32.Kg1 Nf5 33.gf5 Bd5 34.Qg7) 32.gf5 (32.gf5 Qg1 33.Kg1 Bd5 34.Qg7; 32.Rb7?! Qf1 33.Rf3 Nh6+=) 1-0. elgranlucas (2335) - opperwezen (2600), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

6.Nf3 Be7 7.Bb5 Nd4 8.Bc4 ½–½. Heidrich,Manfred (2340) – Gietl,Thomas (2235), Bayern–chA Uttenreuth, 1996. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6)

6.Nf3 g6 7.d4 cd4 8.Nd4 Bg7 9.Ndb5 Nge7 10.Nd6 Kf8 11.Qf3 f6 12.Be2 a5 13.Ncb5 Ba6 14.0-0 Bb5 15.Bb5 (worse 15.Rb5 Nd4 16.Qe3 Nb5 17.Bb5 Qc7=) 15...f5 16.Bc6 dc6? (better 16...Nc6 17.Rd1 Rb8 18.Rb8 Qb8 19.ef5 Nd4+-) 17.Rd1+- Qc7 (17...Kg8 18.ef5 Nd5 19.fe6 Qf8 20.Qf7 Qf7 21.ef7 Kf8+-) 18.Rb7 Qd8 19.Bg5 1-0. juliangon - delightful_porridge, ChessWorld.net, 2022. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3)

4.Nc3 g6

5.Nge2 Bg7 6.g3 (6.Rb1 h5=) 6...Nc6 7.Bg2 (7.Rb1 Bf6=) 7...e6 Secures d5 (7...Rb8 8.a4-/+) 8.0-0 (8.f4 e5+=) 8...Nge7 (8...h5 9.h4 Qa5 10.f4+=) 9.Rb1 0-0 10.d3 Ba6 11.f4 (11.Bg5 Qa5 12.Qd2 Rfe8=) 11...Nd4 (11...d5!?= is interesting) 12.e5+= This push gains space 12...d5 13.ed6 White has a new passed pawn: d6 13...Qd6? (13...Nec6 14.Ne4 c4+/-) 14.Ne4?? makes life more difficult (14.Ba8 Ra8 15.Ne4+/-) 14...Qc7= 15.Nd4 Bd4 (15...cd4 Worse is 16.Ba3 Rac8 17.Qe1+/-) 16.Kh1 Rab8 17.Rb8 Rb8 (17...Qb8 Inferior is 18.c3 Bc3 19.Nc3+/-) 18.c3 Bg7 19.Ba3 Qa5 (19...Bb7!? 20.Qc1 Be4 21.de4 Bf8=) 20.Bc5= Nd5 (better is 20...Nc6!?= is noteworthy) 21.c4+/- Nc3 22.Nc3 Qc5 Black has the pair of bishops 23.Qa4 White threatens to win material: Qa4xa6 23...Bc3-/+ 24.Qa6 Opposite coloured bishops appeared 24...Rb2 25.a4 Qe3 26.Qc6 Qd3 27.Qf3 Qc4 28.h4? Bd4-+ 29.h5 Kg7 30.g4 Qe2 31.Qh3 Rd2 32.h6 Kg8 33.Bf3 Qe3 34.Qg3? Qb3 35.f5-/+ e5 36.fg6 hg6 37.g5 Qb2 38.Qh3?? solves nothing 38...Rf2-+ 39.Rd1 Kh7 40.Qg3 (40.Qg3 Qb3 41.Qf2 Bf2 42.Kg2-+) 1–0. Baumert,Christian (2060) – Lang,Andreas (1935), Berlin op, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nf3 Bg7 6.Bb2 Nc6 7.Bc4 e6 8.0-0 Nge7 9.Rb1 0-0 10.Ba3 d6 11.Ne2 Qa5 12.Qc1 d5 13.ed5 ed5 (worse is 13...Nd5 14.Rb5 Qa4 15.Rc5+/-) 14.Bb5 Rb8 15.Bc6 Rb1 (15...Nc6?! 16.Rb8 Nb8 17.Nf4+=) 16.Qb1 Qa3 17.Bb7 Bf5 18.Qb5 Rb8 19.Ng3 Be6 (19...Qa2?! 20.Nf5 gf5 21.Re1=; 19...Bc2?! 20.Qd7 c4 21.Re1+=) 20.Ng5 Qb2 21.Qb2 Bb2 22.Ba6 Bf6 23.Ne6 fe6 24.a4 Rb2 25.Rc1 Nc6 26.Bc8 Kf7 27.Nf1 (better is 27.Re1!? Nd8 28.Rc1-+) 27...Nd4-+ 28.Kh1 Nc2 29.Ne3 Nd4 30.h3 c4 (30...Rd2?! 31.Rc5 Bd8 32.Ng4-+) 31.Ba6 Rd2 32.Rb1 Nb3 33.Kg1 Bd4 34.Nc4 dc4 35.Bc4 Bf2 36.Kf1 Nc5 37.Be2 Be3 38.Re1 Ne4 (38...Ne4 39.g4 g5-+) 0–1. Lopez Alaya,Carlos (1995) – Clement Gomez,Jose A (2315), Albacete op, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

5.Rb1 Bg7

6.Bb5 Bb7 7.Nf3 (7.Bc4 Bc6 8.Nf3 e6+=) 7...Nf6 (7...Bc3!? 8.dc3 Be4=) 8.e5 Nd5 9.Nd5 Bd5 10.c4 Bb7 11.0-0 0-0 12.Re1 Qc7 13.Bb2 Nc6 Will e5 fall? 14.Qe2 Rab8 15.Qe3 (15.a3 Na5=) 15...Nd8 (15...Nb4 16.Qb3=) 16.d4 (16.Qd3!?+=) 16...a6+= 17.Ba4 Bf3 18.gf3 cd4 19.Qd4 Ne6 20.Qd7 Qc4 (better is 20...Qd7 21.Bd7 Nc5+=) 21.Re4?? (better is 21.Bb3 Qh4 22.Be6 fe6 23.Qe6 Kh8 24.Qg4=) 21...Qa2-+ 22.Qd1 Rfd8 23.Qc1 Rbc8 24.Bc3 Rc3! 25.Qc3 Qb1 26.Kg2 Qd3 27.Qa5 Rd4 28.Re3 Qf5 29.Qa6 Nf4 30.Kf1 Qb1 31.Re1 Qa2 (31...Qa2 32.Bb5 Qa6 33.Ba6 e6-+) 0–1. Day,Lawrence A (2355) – Mihaljevic,Josip, Toronto Casa Loma op rapid, 1994. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

6.Bc4 Nc6 7.Nge2 Nf6 8.0-0 0-0 9.f4 d6 10.h3 Na5 11.Bb5 Rb8 12.d3 a6 13.Ba4 Rb1 14.Nb1 Bd7 15.Bd7 Nd7 16.Nd2 Qb6 17.c3 Rc8 18.Qc2 Qc7 19.Nf3 Nc6 20.Be3 Qa5 21.Rb1 Rb8 ½–½. Matseyko,Ekaterina (2200) – Goreskul,Alyona (2205), UKR–ch U20 Girls sf, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Rb1 Bg7)

6.Bc4 Nc6 7.Nf3 d6 8.0-0 Nf6 9.e5 de5 (9...Ne5 10.Ne5 de5 11.Bb5 Bd7 12.Qe2=) 10.Bb5 (10.Ba3 0-0 11.Bc5 Bf5=) 10...Bd7 11.Bc6 Bc6 12.Ne5 Bd5 (12...Rc8 13.Nc6 Rc6 14.Rb7+=) 13.Nd5 (13.Ba3 0-0+=) 13...Qd5 (13...Nd5 14.Bb2 0-0 15.Qe2=) 14.Qf3 0-0 15.Nc6 Rfe8 16.Qd5 (16.Rb7 Qf3 17.gf3 Nd5+=) 16...Nd5= 17.Rb5 (17.Rb7 a5=) 17...e6 18.Rc5 (18.Bb2 a6 19.Rb7 Bb2 20.Rb2 Rac8=) 18...Rac8 19.Rc4?? (better 19.d4=) 19...Nb6-+ 20.Rc5 Bd4! 21.Nd4 Rc5 22.c3 Nd5 23.Nb3 (23.f4 Rb8-+) 23...Rc7 (23...Rc4 24.g3-+) 24.Ba3-/+ Rd8 (24...Rc4 25.Bd6-/+) 25.Re1 (25.Rb1 Rc4 26.Bc5 a5-/+) 25...Nb6 (25...Rc4 26.Bc5-+) 26.Bc5 (26.Bb4 Nc4-/+) 26...Na4 (26...Nc4 27.d4-/+) 27.Bd4 Rd5 (27...Nb2 28.g3-/+) 28.f4 Nb6 (28...Nb2 29.Rf1-/+) 29.Kf2 (29.d3 Rd4 30.cd4 Rc2=+) 29...Nd7 (29...g5 30.g3=+) 30.Kf3 (30.d3 Rf5 31.Ke3 g5=+) 30...a5 31.Nc1 (31.h3 a4 32.Nc1 Rb7=+) 31...a4 (31...Nb8 32.Be3-/+) 32.Nd3=+ Rb5 33.Nb4 Rcb7 (33...a3 34.g4=+) 34.a3= Kf8 (34...g5 35.c4 Rf5 36.g3=) 35.c4 Rb4 (35...Rh5 36.d3=) 36.ab4 Rb4 37.d3 Rb3 (37...Ke7 38.Ke3=) 38.Ke3 Ke7 (38...f6 39.Kd2 e5 40.fe5 fe5 41.Bc3+=) 39.Ra1+= a3 (better 39...f6!?+=) 40.Kd2+- f6 41.Kc2 Rb7 42.Ra3 e5 43.fe5 fe5 44.Ra7 (44.Be3 Nb8+-) 44...Ra7 45.Ba7 Kd6 46.d4 (46.Kc3 Kc6+-) 46...ed4+- 47.Bd4 Nf8 48.Kd3 Ne6 49.Be3 (49.g3 Kc6+-) 49...Ke5 (49...Ke7 50.Ke4+-) 50.g3 g5 (50...Kd6 51.Ke4+-) 51.h3+- h6 52.Ba7 h5 53.Bb8 Kf5 54.Bd6 Nd8 55.Kd4 Ke6 56.Bc7 Nc6 57.Kc5 (57.Ke4 Kd7 58.Bb6 Ke6+-) 57...Kd7 (57...Ne7 58.Kb6 Kd7 59.Kb7+-) 58.Bb6 (58.Bd6 Na5 59.Be5 Nc6+-) 58...Ne7+- 59.Kb5 (59.Ba5 Nf5 60.Be1 g4+-) 59...Nf5 60.Bf2 Nd6 61.Kb4 Ne4 62.Be3 (62.Be1 Kc6+-) 62...Kc6 (62...g4 63.hg4 hg4 64.Bf4=) 63.Kb3 (63.h4 gh4 64.gh4 Nd6+-) 63...Ng3 (better 63...g4!? 64.hg4 hg4=) 64.Bg5+- Ne4 65.h4 (65.Be3 Kd6+-) 65...Kc5 (65...Kd6 66.Be3+-) 66.Be7 (66.Bf4 Kc6+-) 66...Kc6 67.Kb4 (67.Bb4 Kd7+-) 67...Kd7 68.Bc5 (68.Bf8 Kc6+-) 68...Kc6 69.Be3 (69.Bd4 Nd6+-) 69...Nd6 (69...Ng3 70.Bd4+-) 70.Kc3 (70.Bd4 Nf5 71.Bf6 Nd6+-) 70...Nf5 71.Bf2 Kd6 72.Kd3 (72.Kc2 Kc6+-) 72...Ke5 (72...Kc6 73.Kc2+-) 73.Ke2 (better 73.Be1!?+-) 73...Ke4= ½–½. Kivipelto,Kaj (2150) – Tuominen,Tanja (2075), TCh–FIN, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Rb1 Bg7)

6.Bc4 Nc6 7.Nf3 d6 8.0-0 Nf6 9.h3 0-0 10.Re1 Ne8 11.Ne2 Nc7 12.Bb2 e5 13.c3 Na5 14.Bd3 c4 15.Bc2 Ne6 16.Ba3 Nc5 17.d4 cd3 18.Bd3 Be6 19.Bc5 dc5 20.Qa4 Qd3 21.Qa5 Qc4 22.Rb2 Rfc8 23.Ng3 Bf6 24.Re3 Rc6 25.Nd2 Qa6 26.Qa6 Ra6 27.c4 Rd8 28.Rc3 Bg5 29.Ngf1 Rb6 30.Rcb3 Rbd6 31.Rb8 Rb8 32.Rb8 Kg7 33.Rb2 Rd3 34.Rc2 f5 35.f3 Bd8 36.Kf2 f4 37.Nb3 Bb6 38.Ke2 Rd8 39.Nfd2 Kf6 40.a4 a6 41.Rb2 Rd6 42.a5 Bc7 43.Ra2 Bf7 44.Ra4 Rc6 45.Nb1 Bd6 46.Nc3 Rc8 47.Nd5 Ke6 48.Kd3 g5 49.Ra2 Be8 50.Kc3 Rb8 51.Rb2 Kf7 52.Nb6 Bc6 53.Rd2 Ke7 54.Nd5 Ke6 55.Nb6 h5 56.Rd1 Rg8 57.Rg1 Rg6 58.Rh1 Rg8 59.Kd3 Be7 60.Nd5 Rb8 61.Kc3 Bd6 62.Rb1 Rb7 63.Ra1 Bf8 64.Nb6 Rb8 65.Rb1 Bd6 66.Nd5 Rb7 67.Ra1 Rg7 68.Rh1 Ba4 69.Nd2 Rb7 70.Ra1 Be8 71.Nb3 Bc6 ½–½. Levinsky,G (2025) – Cebalo,M (2485), 11th European Senior, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

6.Qf3 Nc6= 7.Qg3 Nf6 8.Be2 0-0 9.h4 d5=+ 10.ed5 Nd5 11.Nd5 Qd5 12.c4 Qd6 13.Qd6= ed6 14.Bf3 Bf5-/+ 15.Rb3 Nd4 16.Re3 Rab8 17.Ne2 Nc2 18.Kd1 Ne3 19.fe3 Bd3 20.Bd5 Rb4 21.a3 Ra4 22.Bc6 Rc4 23.Nf4 Bf5 24.Bb5 Bg4 25.Ne2 Re4 26.d3 Re7 27.e4 d5! 28.Bc6 de4 29.de4 Rc8 30.Bd5 Rd8 31.Bg5 Rd5! 32.ed5 Re2 (32...Re2 33.Bd2 Rg2 34.Kc1 a6-+) 0–1. Nielsen,Lars (2130) – Karges,Dieter, Oberliga Nord W9798, 1997.

6.Nf3 Nc6 7.Bc4 d6 8.0-0 Nf6 9.h3 0-0 10.Re1 e6 11.Bb2 Nd7 12.Bf1 Nb6 13.Nb5 (13.Bb5 Bb7=) 13...e5 14.c3 (14.Nc3 f5=) 14...Be6=+ 15.a4 Na5 16.Bc1 a6 17.Na3 Bd7 Attacking the isolated pawn on a4 18.Bd3 Ba4 19.Qe2 Bc6 20.Ba6 Be4 21.Qe4 Ra6 22.d4 ed4 23.cd4 d5 24.Qe2 c4 25.Bg5 (25.Nb5 Na8-/+) 25...Qc8 (25...Qd7 26.Ne5 Qf5 27.Bd2 Be5 28.de5-/+) 26.Nb5 Nd7 27.Nc3 Qa8 28.Rb5 h6 (28...Nb6 29.Qe3-/+) 29.Bh4 (29.Be7!? Re8 30.Nd5= (worse 30.Rd5 Nb6 31.Rb5 Nc6-+)) 29...Re6-/+ 30.Qd1 Re1 (30...Nb3!?-/+) 31.Qe1= Nb3 Attacks the isolani on d4 32.Rd5 Nb6 33.Rb5 (better 33.Rd6 Rb8 34.Ne5=) 33...Nd4-/+ 34.Nd4 Bd4 35.Kh2 (35.Qc1 Qc6 36.Rb1 Re8-/+) 35...Qa6 36.Rb1 (36.Qb1 Re8-/+) 36...Qa5-+ 37.Ne4 (37.Nb5 Qe1 38.Re1 Bg7-+) 37...Qe1 38.Re1 Bg7 (38...f5 39.Be7 fe4 40.Bf8 Kf8 41.Re4-+) 39.f3 (39.Rb1 Nd5-+) 39...c3 40.Rc1 Nd5 41.Be1 Rc8 42.Nd6 Rc6 43.Nb5 Be5 (43...c2 44.Na3 Ne3 45.Bd2-+) 44.Kg1 (44.Bg3 Bf6 45.Bf2 c2-+) 44...c2 45.Na3 Ne3 46.Bd2 Bb2 47.Be3 Ba3 0–1. Goldt,Rainer (1820) – Schramm,Christian (2320), Frankfurt–ch, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Rb1 Bg7)

6.f4 Nc6 7.e5 Nh6 8.Bb5 Bb7 9.Ba3 Nb4 10.Bf1 (worse is 10.Bb4 Bg2 (10...cb4?! 11.Bf1+=) 11.Bc5 Bh1-+) 10...a5 11.Na4 Bd5 (11...Qc7=) 12.c3 (12.Nc5 d6 13.Bb5 Kf8 14.Nd7 Kg8 15.Kf2+=) 12...Be4 (worse is 12...Ba2 13.Ra1 Bd5 14.cb4 ab4 15.Bb2+=) 13.d3 (better is 13.Nc5 Nc2 14.Kf2 Na3 15.Ne4 Nb1 16.Qb1-/+) 13...Bc6?? (better is 13...Nd3 14.Bd3 Bg2-/+) 14.Nc5+/- (worse is 14.Bb4 ab4 15.Nc5 d6-/+) 14...Nd5 15.Qd2 Nf5 16.Nf3 0-0 17.Be2 d6 18.Ne4 Nde3 19.Rg1 h5 20.h3 Ba4 21.Rc1 Bh6 22.Neg5 Bg5+/- 23.fg5 Qb6 24.c4 Qa7 25.g4 Nd4 26.Nd4 Qd4 27.Rg3 Nc2 28.Rc2 Bc2 29.Qc2 Qe5 30.Kf2 Qf4 31.Kg2 h4 32.Rf3 Qg5 33.d4 a4 34.Bb4 Rac8 35.Bd2 Qd5 36.Qd3 Qb7 37.d5 Qb2 38.Bc3 Qa2+/- 39.g5 Kh7? 40.Qd4 Qe2+/- 41.Rf2 Qe5 42.Qh4 Kg8 43.Be5 de5 44.Ra2 Ra8 45.c5 a3 46.Qg3 Ra5 47.Qc3 Rfa8 48.c6 Rd5 49.c7 Rc8 50.Ra3 e4 51.Qg3 Rc5 52.Rc3 Rf5 53.h4 e6 54.Qd6 Rd5 55.Qa6 (55.Qa6 Rd2 56.Kg3+-) 1–0. Zelinsky,A (2090) – Timushev,A (2110), Lviv Talents FIDE open, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

6.g3 Nc6+= 7.Bg2 (7.Nf3 Nf6=) 7...Ba6= 8.Nge2 Rb8 9.Bb2 (9.Rb8 Qb8 10.d3 Nf6=) 9...Nd4 (9...Nh6 10.a4+=) 10.Ba1 (10.Ba3 Ne6=) 10...e6 11.d3 Ne7 12.0-0 Nec6 13.Nd4 Nd4 14.Qd2 0-0 15.Rb8 Qb8 16.Rb1 Qc7 17.Nd1 Rb8 18.Rb8 Qb8 19.Bb2 Qb5 (19...Qb6 20.h4+=) 20.c3 Nc6 21.c4 Qb4 22.Qb4 (22.Bc3 Bc3 23.Nc3 Nd4+=) 22...Nb4-/+ (worse is 22...cb4 23.Bg7 Kg7 24.f4=) 23.Bg7 Kg7 24.Nb2 Na2 25.e5 (25.Na4 d6 26.e5 de5 27.Nc5 Bc8-/+) 25...Nb4-/+ 26.f4 f6 27.g4 g5 28.Be4? (better is 28.fg5 fe5 29.Kf2-/+) 28...gf4-+ 29.ef6 Kf6 30.Bh7 Kg5 31.h3 Bb7 32.Na4 d6 33.Nc3 Bc6 34.Bg8 a5 35.Be6 a4 36.Bd5?? (36.Nb5-+) 36...Bd5 (36...Nd5?! 37.cd5 Be8 38.Kg2-+) 37.cd5 (37.Na4 Bg8 38.Nc3 Nd3 39.Ne4 Kh4-+) 37...a3 38.Kf2 a2 39.Na2 Na2 40.Kf3 Nb4 41.Ke4 Nc2 42.Kf3 Nd4 43.Ke4 (43.Kg2 Kh4 44.Kf2-+) 43...f3 44.Ke3 Kh4 45.Kf2 Kh3 46.g5 Kg4 47.g6 Nf5 (47...Nf5-+) 0–1. Pijpers,Arthur (2370) – Beerdsen,Thomas (2260), Dieren NED, Dutch Open, 2014. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

5.Bc4 Nc6

6.Rb1 d6 7.e5 Bf5 (7...Ne5? doesn't solve anything 8.Bd5 Be6 9.Ba8 Qa8 10.Qe2+/-) 8.Nf3 (8.Bb5 Bd7 9.ed6 ed6 10.Qe2 Be7 11.Bc6 Bc6=) 8...Bg7 (8...de5 9.Bd5 Qc8 10.0-0=) 9.ed6 ed6 10.0-0 White castles and improves king safety 10...Nge7 11.Nd5 0-0 Black castles and improves king safety 12.Bb2 Nd5 13.Bd5 The bishop feels good on d5 13...Nb4 14.Bg7 Kg7 15.Rb4 (15.Ba8 Instead of 15...Bc2 16.Qc1 Bb1 17.Qc3 f6-/+) 15...cb4 16.Ba8 Qa8 17.Qa1 Kg8 18.Qd4 White threatens to win material: Qd4xb4 (18.Nd4 Qd5=) 18...Bc2 19.Qd6 White has a new passed pawn: d2. 19...Be4 Black threatens to win material: Be4xf3 20.Qb4 Bf3 21.gf3 Qf3 22.Re1 Rd8 23.Re7 White threatens to win material: Re7xa7 23...Rc8 24.Re1 ½–½. Hrabinska,Myroslava (2115) – Aksionova,Tatiana (2120), UKR–ch U18 Girls, 2002.

6.Rb1 d6 7.Nf3 Nf6 8.0-0 Bg7 9.d3 0-0 10.Bg5 Bg4= 11.h3 Bf3 12.Qf3 Ne5 13.Qe2 Nc4 14.dc4 Qa5 15.Bd2 Rfb8 16.Rb5 Qd8 17.Rfb1 Nd7 18.Nd5 e6 19.Ne3 Qc8 20.Qd3 a6 21.Rb8 Rb8=+ 22.Rb3 Qc7 23.Ng4 Ne5 24.Ne5= Be5 25.Qf1 Rc8 26.Qb1 Qc6 27.Bh6 Bg7 28.Bg7= Kg7 29.Qb2 e5 30.f3 Qa4 31.Rd3 Qb4 32.Qb4 cb4=+ 33.Rd6 Rc4 34.Ra6 Rc2 35.Ra4 Rb2 36.a3 ba3 37.Ra3 ½–½. Gietl,Thomas (2200) – Kestler,Hans Guenther (2330), Landesliga Nord, 1997.

6.Rb1 Bg7 7.Nge2 Nf6 8.0-0 0-0 9.d3 d6 10.h3 Bd7 11.a3 Qc8 (11...Na5 12.Ba2=) 12.Kh2 (12.Bg5 Rb8=) 12...Rb8 13.g4 (13.Bf4!?=) 13...Rb1=+ 14.Nb1 Ne5 (14...h5 15.f3=+) 15.Ba2 Nf3 16.Kg2 Nd4 17.Ng3 (17.c3!? Ne2 18.Qe2=+) 17...Ba4 (17...Ng4 18.hg4 Bg4 19.f3 Bh3 20.Kh2 Bf1 21.Nf1-/+) 18.Bb3 (18.Qd2 Bc2 19.Bb2 Ba4-/+) 18...Bb3 19.cb3 Qb7 20.Nd2 Rb8 21.Bb2 (21.g5 Nd7-/+) 21...Nb3-+ 22.Nf3 (22.Nc4 h6-+) 22...Nd5 (22...Ne4!? 23.Bg7 Ng3 24.fg3 Kg7 25.Kh2-+) 23.Bg7 Nf4 (23...Kg7 24.ed5 Qd5 25.Re1+-) 24.Kh2 Kg7 25.d4 (25.Ne2 Ne2 26.Qe2 Qa6-+) 25...Qb5 (25...Qa6 26.dc5 Nc5 27.Qd2-+) 26.dc5 (26.d5 Qa5-+) 26...Qc5 27.Qb1 (27.Nd2 Qd4 28.Nf3 Qb2-+) 27...Qa3 28.e5? (28.Qd1-+) 28...Nd2! 29.Qb8 (29.Nd2 Rb2 Double attack (29...Rb1 Discovered attack; 29...Rb2 Decoy)) 29...Nf1 (29...Qf3 30.Qg8 Kg8 31.Rg1 Nf1 32.Rf1 Qg2) 30.Nf1 (30.Kh1 Qf3 31.Kg1 Qg2) 30...Qf3 (30...Qf3 31.Qf8 Kf8 32.Ne3 Qh3 33.Kg1 Ne2) 0–1. Vrban,Rok (2025) – Novoselski,Zoran (2415), Sentjur SLO, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Bc4 Nc6)

6.Rb1 Bg7 7.Nf3 d6 8.0-0 Bd7 9.Re1 (9.Ng5 Nh6+=) 9...Rb8 10.Bb2 Nh6 (10...Nf6 11.e5 de5 12.Ne5+=) 11.h3 (11.Ba1 Rb1 12.Qb1 0-0+=) 11...0-0 12.Qc1 (12.Qe2 e6+=) 12...e6 (12...Na5 13.Ba6=) 13.Nb5+= d5 (13...e5 14.Nd6 Bh3 15.Nf7 Nf7 16.gh3+=) 14.Bf1 (better 14.Bg7!? Kg7 15.ed5 ed5 16.Bd5+-) 14...de4 (14...Nb4 A) 15.Na7?? Na2 16.Qd1 Bb2-+ (16...Rb2?! 17.Rb2 Bb2 18.Qb1-+); B) 15.Bg7 Kg7 16.Na7 de4 17.Re4=) 15.Re4 (15.Bg7 Kg7 16.Re4 Nf5=) 15...Nf5 (15...Bb2 16.Rb2 (worse 16.Qb2 a6-+) 16...Qf6 17.Nc3=) 16.Bg7 Kg7 17.Re1 (17.Rc4 a6 18.Nc3 Qe7=) 17...f6 (17...Nb4 18.Nc3=) 18.c4 (better 18.Qa3!?+=) 18...e5 19.d3 (19.Qa3 a6 20.Qa6 Ra8=) 19...a6=+ 20.Nc3 (20.g4 ab5 21.gf5 b4 22.fg6 hg6-/+) 20...Ncd4 (20...Qa5 21.Nd5-/+) 21.Nd4=+ Nd4 22.Ne2 Nc6 (22...Rb1 23.Qb1 Qc7 24.Nd4 cd4 25.Qb4=+) 23.Rb8 (23.Qd2 Be6 24.Rb8 Qb8=+) 23...Qb8 24.Qb1 (24.Nc3 Nd4=+) 24...Qc7 (24...Qd6 25.Ng3 Rb8 26.Qc1-/+) 25.Qb3 (25.Qc1 Qd6=+) 25...Rb8-/+ 26.Qa3 (26.Qc3 Qd6-/+) 26...Nb4 27.Rc1 Rd8 28.Ng3 Bc6 Attacking the backward pawn on d3 29.Ne4 (29.Qb3 Ba8=+) 29...Be4 30.de4 Rd2 31.Qc3 (31.Qe3 Ra2 32.Rd1 Ra5-/+) 31...Qd6 32.Ra1 (32.Rb1 Ra2 (32...Na2?! 33.Rb7 Kg8 34.Qb3=) 33.Qf3 Rd2-/+) 32...Na2 33.Qe3 (33.Qf3 Nb4-/+) 33...Nb4 (33...Qd4 34.Re1-+) 34.Ra5 (34.Qf3 Rd4-/+) 34...Rd4-+ 35.f3 (35.Qe2 h6-+) 35...Qb6 (35...Rd1 36.Qe2-+) 36.Ra4 Rd6 (36...Rd1 37.g3-+) 37.h4 (37.Kh2 Nc2 38.Qf2 Nd4-+) 37...Nc2 (37...Rd1 38.h5-+) 38.Qf2-/+ Nd4 39.h5 (39.Ra2 Qc7-/+) 39...g5 (39...Qb1 40.Ra2-+) 40.Kh2 (40.Ra2 Kh6-+) 40...Kh6 41.Ra1 (41.Qa2 Kh5 42.Qa3 Kg6-+) 41...a5 (41...Kh5 42.Kg1-+) 42.g4? (better 42.Qa2-/+) 42...Nf3!-+ 43.Qf3 (43.Kh1 Nd2 44.Qf5-+) 43...Qb2 44.Bg2 (44.Be2 Qa1 45.Kg2 Qe1-+) 44...Qa1 45.Qf5 (45.Bf1-+) 45...Qc1 46.Qc8 Qf4 47.Kh3 (47.Kh1 Rd1 48.Bf1 Qf1 49.Kh2 Qf2 50.Kh3 Rd3) 47...Rd3 (47...Rd3 48.Bf3 Rf3 49.Kg2 Qg3 50.Kh1 Rf1) 0–1. Seletsky,Grigory (2345) – Gromovs,Sergejs (2330), S.Eufemia d'Aspromonte ITA, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Bc4 Nc6)

6.Rb1 Bg7 7.Nf3 d6 8.0-0 Nh6 9.h3 (9.d4 0-0+/-) 9...0-0 10.Re1 (10.d3 Bc3 11.Bh6 Re8+=) 10...Bd7+= 11.Ne2 (11.Qe2 Rb8+=) 11...Na5= 12.Bd5 Rb8 13.Rb8 Qb8 14.d3 e6 15.Bb3 Nb3 16.ab3 f5 17.Be3 e5 18.Bh6 (18.Nc3 f4 19.Bd2 Qb7+=) 18...Bh6= 19.Nc3 Bc6 20.Qa1 Qb7 21.Qa5 ½–½. Kryvoruchko,Vita (2185) – Tissir,Mohamed (2365), Abu Dhabi UAE, 2014. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

6.Rb1 Bg7 7.Nf3 Nf6 8.e5 Ng8 9.0-0 Nh6 (9...Ne5?? 10.Ne5 Be5 11.Qf3+-) 10.Ne4 Qc7 11.Bd5 Rb8 12.Rb8 Nb8 13.d3 0-0 14.Bg5 Nc6 15.Bc6 (worse is 15.Nc5 Ne5 16.d4 Nf3 17.Qf3 Nf5=) 15...dc6 16.Nc5 Bg4 17.d4 Rd8 18.c3 Nf5 19.h3 Bf3 20.Qf3 (worse is 20.gf3 Be5 21.Qe2 Bd6-/+) 20...h6 21.Bf4 e6 22.Rb1 Qa5 23.a4 (23.Qc6?! Qc3 24.d5 ed5=) 23...Nd4 24.cd4 Rd4 25.Nb3 Qb4 26.Nd4 Qb1 27.Kh2 c5 28.Nb5 Qb4 29.Na7 Qa4 30.Nc6 c4 31.Bd2 Qb5 32.Bc3 Qb7 (32...Bf8 33.Kg3+-) 33.Bb4 Qc7 (33...Kh7+-) 34.Bd6 Qd7 35.Ne7 Kf8 (35...Kh7 36.Qa8 Qe7 37.Be7 Be5 38.g3 f5+-) 36.Qa8 (36.Qa8 Qe8 37.Nf5 Kg8 38.Qe8 Kh7 39.Qf7 gf5 40.Bf8 c3 41.Qg7) 1–0. Chulivska,Vita (2030) – Gusakovskaya,Yana, UKR–ch U16 Girls, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

6.Nf3 d6 7.h3 Bg7 8.0-0 a5 9.Qe2 e6 10.Rb1 Nge7 11.Bb2 0-0 12.Na4 Nb4 13.Bg7 Kg7 14.c3 Nbc6 15.d4 cd4 16.cd4 Bd7 17.Nc3 Rb8 18.e5 d5 19.Bb5 Na7 20.a4 Bb5 21.ab5 Qb6 22.Na4 Qd8 23.Rfc1 Rc8 24.Rc5 Rc5 25.dc5 Qb8 26.Nb6 Rd8 27.Qd2 Nac8 28.Qg5 Qc7 29.Qf6 Kg8 30.Ng5 Rf8 31.Nc8 Nc8 32.b6 Qb8 33.Rb3 Qb7 34.h4 (better is 34.c6 Qb6 35.Rb6 Nb6 36.Nf7 Rf7 37.Qd8 Kg7 38.Qb6+-) 34...Qe7?? (better is 34...Ne7+-) 35.b7 Qf6 36.ef6 (36.bc8Q?! Qe5 (36...Rc8? 37.ef6 h6 38.Nf3+-) 37.Qa6 Qa1 38.Qf1 Qa4+/-) 36...h6 37.b8Q hg5 38.hg5 a4 39.Rh3 d4 40.Qh2 a3 41.Rh8 1–0. Mkrtchian,Simon (2180) – Stokes,Stephen, Malahide Millennium op rapid, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6)

6.Nf3 Bg7 7.Bb2 e6 8.Rb1 d6 9.0-0 Nge7 10.Ne2 (10.e5 d5 11.Be2 a6=) 10...e5 (10...Bb2 11.Rb2 d5 12.ed5 ed5 13.Bb5=) 11.Ng5 (11.Ng3 0-0+=) 11...0-0= 12.f4 (12.Ng3 Na5 13.Be2 Nec6=) 12...d5 13.ed5 (13.Bb3=) 13...Na5 (13...Nd5!? 14.Bb5 Na5=+) 14.d3+= Nd5 15.Bd5 (15.Be5 Ne3 16.Qe1 Nac4 17.Bg7 Kg7 18.Qc3 f6 19.dc4 Nf1 20.Rf1 Rb8-+) 15...Qd5 16.Nc3 (16.fe5 Be5 17.Be5 Qe5+=) 16...Qc6 (16...Qd8!? 17.Nce4 f6=) 17.fe5+= Be5 18.Nf3 (18.Nce4 Bb2 19.Rb2 f5+=) 18...Bb7 (18...Bg7!? 19.Qd2 Rb8+=) 19.Qd2+- Bg7 20.Ne4 Bb2 (20...Nc4 21.dc4 Bb2 22.Rb2 Qe4 23.Re1+=) 21.Rb2 f5 22.Ng3 (22.Neg5 h6 23.Qa5 hg5+-) 22...Qc7 (22...Qa4!? 23.Qe3 Qc6=) 23.Rb5+- Bf3 24.Rf3 (24.Qa5!? Qa5 25.Ra5+-) 24...Nb7= 25.Qc3 The isolani on c5 becomes a target 25...Rf7 26.Nh5 (26.Rf1 Re8=) 26...a6 (26...Qd7 27.a4 Qd4 28.Qd4 cd4 29.Nf4=) 27.Rb1 Raf8 (27...Qd6 28.Ng3 Nd8 29.Re3=) 28.Nf4+= Qc6 (28...Re8!?+=) 29.Re3+- Nd6 (29...Qd6 30.Re5+-) 30.Rbe1 (30.Re6 Nb5 31.Qc4 Qc8+-) 30...Nb5 (30...c4!?+-) 31.Qc4 Nc7 (31...Nd6 32.Re6+-) 32.Re5+- Re8?? (better 32...Qb5+-) 33.Re8 (better 33.Re7! Ref8 34.Rf7 Rf7+-) 33...Ne8 34.Qd5 Qa4 (34...Qd5 35.Re8 Kg7 36.Nd5 Rb7+-) 35.Qc5 (better 35.Re7! Qd4 36.Qd4 cd4 37.Re8 Kg7 38.Ne6 Kf6 39.Nd4+-) 35...Qf4 (35...Nc7 36.d4+-) 36.Re8 Kg7 37.Qe5 Qe5 38.Re5 Rb7 39.Rc5 Rb6 (39...Kf7 40.Kf2+-) 40.a4 (40.Kf2 Kf6+-) 40...Kf6 (40...Kf7 41.Kf1+-) 41.Kf2 Ke6 42.Ke3 Kd6 (42...Rb2 43.d4+-) 43.Ra5 (43.d4 Kd7+-) 43...Kc6 (43...Kc7 44.g3+-) 44.g3 (44.d4 Rb2 45.Kd3 Kb6+-) 44...Kb7 45.Re5 (45.Rc5 Rb1 46.a5 Rf1+-) 45...Rf6 (45...Rb1 46.Re7 Kb6 47.Rh7+-) 46.Re7 Kb6 47.Rh7 Ka5 (47...g5 48.Rh5 Rg6+-) 48.Rb7 (48.Rh6!? Ka4 49.h4 a5+-) 48...Ka4? (better 48...g5+-) 49.c4 g5 (49...Re6 50.Kd4+-) 50.c5 f4? (50...Rh6+-) 51.gf4 gf4 (51...Re6 52.Kf3 Rf6 53.Kg3 gf4 54.Kf3+-) 52.Kf3 Rh6 (52...Rc6 53.d4 a5 54.Rb6+-) 53.Kf4 Rh4 (53...a5+-) 54.Ke5 Rh5 55.Kd4 Rh4 (55...Rh6 56.Kc4 Ka3 57.Rb3 Ka2 58.Rb6 Rh2 59.Ra6 Kb1 60.c6 Rc2 61.Kd5+-) 56.Kd5 Rh5 57.Kc4 Rh4 (57...Rh2 58.c6 Rc2 59.Kd5 Ka5+-) 58.d4 (58.d4 Rh2 59.c6+-) 1–0. Bach,Matthias (2200) – Karlsson,Ulf (2035), Xtracon Chess Open, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 g6 5.Bc4 Nc6)

6.f4 d6 7.Nf3 Bg7 8.Rb1 e6 9.0-0 Nge7 10.Bb5 0-0 11.Kh1 h6 12.Qe2 Qc7 13.Qf2 Nd4 14.Nd4 cd4 15.Ne2 e5 16.Ba3= Be6 17.c3 a6 18.Bd3 f5 19.cd4 Ba2 20.Rbc1 Qd7 21.d5?? fe4-/+ 22.Be4 Bd5 23.Qf3 Be4 24.Qe4 a5 25.Qd3 Nf5 26.Qd5 Qf7 27.Qc6 Nd4 28.Nd4=+ ed4 29.Bd6 Rfd8 30.Be5 Kh7 31.Qe4 Ra7 32.f5 Re7? 33.f6+/- Bf6 34.Rf6 (34.Rf6 Qf6 35.Bf6 Re4 36.Bd8+-) 1–0. Van Dijk,Bram (2275) – Hulse,Brian (2355), New York op (7), 1993.

6.f4 Bg7 7.Rb1 d6 8.Nf3 e6 9.0-0 Nge7 10.Qe2 Nd4 11.Nd4 cd4 12.f5 (12.Nd1 Qc7+=) 12...dc3= 13.f6 Bh6 14.fe7 Qe7 15.Ba3 (better is 15.dc3 Bc1 16.Rfc1=) 15...Bg7 (better is 15...cd2 16.e5 a6 17.Bd6 Qa7 18.Kh1 Qe3=) 16.e5!+/- 0-0? 17.Bd6+- Qd8 18.Qf3 Bd7 19.Rb7 f5 20.Bf8 Bf8 21.Qc3 Bc5 22.Kh1 Bb6 23.Qb3 Bc6 24.Be6 Kh8 25.Rf7 Qd2 26.Qh3 h5 27.Bf5 (27.Bf5 Qg2 28.Qg2 Bg2 29.Kg2 gf5 30.c4+-) 1–0. Gietl,Thomas (2370) – Kordts,Wolfgang (2210), Regionalliga NO, 2000. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nc3 g6)

4.Bc4 Bb7

5.Nc3 Nc6 6.Nf3 e6 7.0-0 Na5 8.Bb5 a6 9.Ba4 Qc7 10.d3 Ne7 11.Ne2 Ng6 12.Bb2 f6 13.Qd2 Bd6 14.h4 Nc6 15.Rab1 Rb8 16.g3 0-0=+ 17.h5 Nge5 18.Ne5 Ne5 19.f4 Ng4 20.Bc3 Qc8 21.f5 Ba8 22.Rb8 Bb8 23.fe6 de6 24.Bb3 c4 25.Bc4 Be4 26.Nd4 Ba7 27.Rf4 Bf5 28.Rf5= Kh8 29.Rf4+= e5 30.Re4 f5=+ 31.Re2 Qd7 32.h6 ed4?? 33.Kf1 f4 34.hg7? Kg7?? 35.gf4? Rf4?? 36.Ke1 Qf5= 37.Kd1?? Rf1 38.Re1 Qf3 39.Qe2?? Re1 40.Be1 Ne3 (40...Ne3 41.Kd2 Qf4-+ (41...Nc4?! 42.dc4 Qf4 43.Kd1=)) 0–1. Kovacic,G – Rocius,Marijonas, Aschach op, 1993.

5.Nc3 Nc6 6.f4 Na5 7.Be2 g6 8.Bf3 Bg7 9.Nge2 e6 10.0-0 Ne7 11.Rb1+= d6 12.d3 0-0= 13.Be3 Rb8 14.Qd2 Nec6 15.f5 Ne5= 16.fe6 fe6 17.Nf4 Qd7 18.Be2= Nac6 19.Nb5 a6 20.Na3 Qe7 21.c3 Nd7 22.d4 Nf6= 23.Bf3 cd4=+ 24.cd4 e5 25.Nd5 Nd5 26.ed5 Nd4 27.Bd4 ed4 28.Nc2 Qc7 29.Rfc1 Qf7 30.Qa5 Be5-/+ 31.Ne1 Qf4-+ 32.Rc7? Qh2 33.Kf1 Rf3! 34.gf3 Bg3 35.Nd3 Qh1 36.Ke2 Qb1 37.Rg7 Kg7 38.Qc7 Kh6 (38...Kh6 39.Qb8 Qc2 40.Kf1 Bc8 41.Qc8 Qc8 42.Kg2 Bh4 43.a3 Qc2 44.Kh1 Qd3 45.Kg2 Qe2 46.Kg1 Qf2 47.Kh1 Bg3 48.f4 Qf1) 0–1. Bove,A (2125) – Moranda,W (2355), EYb16 Budva YUG (1), 2003.

5.Nc3 e6 6.Nf3 Be7 7.0-0 d6 8.Rb1 Qc8 9.d4 cd4 10.Qd4 Nf6 11.Bb5 Bc6 12.Ba3 0-0 13.Qa4 a6 14.Bc6 Nc6 15.Rb6 Nd8 16.Qb3 Nd7=+ 17.Na4 Nc6 18.Qc3 ½–½. Scharl,Walter (2000) – Schamberger,Alfons (2060), Regionalliga SW9899, 1998.

5.Nc3 Nf6 6.Nf3 d6 (6...Be4? 7.Ne4 Ne4 8.Bd5 Nf2 9.Kf2+-) 7.0-0 Nbd7 8.Bb2 e6 9.Re1 Be7 10.d4 cd4 11.Qd4 a6 12.Rab1 Nc5 13.Ba3 Qc7 14.Bd3 0-0 15.Rb2 Rab8 16.Reb1 Nfd7 17.Qe3 Bf6 18.Bb4 Rfc8 (18...Ba8 19.Be2 Bc3 20.Qc3 Be4 21.Nd2-/+) 19.e5 (better is 19.Nd4!?=) 19...de5 (worse is 19...Ne5 20.Ne5 Be5 21.Bc5 Qc5 22.Qc5 dc5 23.Rb7 Rb7 24.Rb7 Bc3 25.Ba6=; 19...Nd3?! 20.cd3 Ne5 21.Ne5 Be5 22.d4-/+) 20.Ng5? (better is 20.Bc5 Nc5 21.Be4-/+) 20...Nd3-+ 21.cd3 Ba8 (better is 21...a5 22.Nb5 Qc6-+) 22.Nge4-/+ Qc6 23.f3? (23.Qg3 Bd8 24.Ne2 Nf6-/+) 23...Qb6 (better is 23...Bd8 24.Qe1 f5-+) 24.Qb6 Rb6 25.Na4 Rbc6 26.Nac3 g6 27.Kf2 Bg7 28.Ke2 Bf8 29.Bf8-/+ Kf8 30.Nd1 Rc2 31.Ke3 Rb2 32.Rb2 Ke7 33.Nec3 Rb8 34.Rb8 Nb8 35.Ne4 Be4 36.de4 Nd7 37.Nb2 Nb6 38.Kd3 Kd6 39.Kc3 Kc6 40.Nd3 Nd7 41.Kc4 Kb6 42.Kb4 f6 43.Kc4 a5 44.Nf2 ½–½. Bohner,Joerg – Bandow,Sven, Schleswig Holstein–ch cand, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Bb7)

5.d3 d6 6.Ne2 e6 7.0-0 Nf6 8.Bg5 Be7 9.Nbc3 0-0 10.Rb1 Bc6 11.Ng3 Nbd7 12.Kh1 Nb6 13.Bb5 Bb7 14.f3 Rb8 15.d4 cd4 16.Qd4 Qc7 17.Bd3 Rfc8 18.Nb5+/- Qc5 19.Qc5 Rc5 20.Na7 Na4 21.Rb4 Ra5?? 22.Nb5 Bc6 23.Rfb1 d5 24.ed5 Bd5 25.Rd4 Bc5 26.Rf4?? Be3?? 27.Bf6?? Bf4-/+ 28.Be7 f6?? 29.Ne2 Be3 30.h3?? Kf7?? 31.Bd6=+ Rb7 32.Nbc3?? Rb1-+ 33.Nb1 Ba2 34.Nbc3 Nc3 35.Nc3 Bd5 36.Nd5 ed5 37.Kh2 h6 38.Kg3 Ke6 39.Bc7 Ra2 40.h4 Bc5 41.h5 Bd6 42.Bd6 Kd6 43.Kg4 Ke5 0–1. jacekmpl (1755) – mila77 (1805), kurnik, 2011.

5.d3 e6 6.f4 (6.Nc3 Nc6+=) 6...Be7 (6...d5 7.ed5 ed5 8.Qe2 Ne7 9.Bb3=) 7.Nf3 Nc6 8.Nc3 Nf6 9.e5 White gains space 9...d5 10.Bb3 (10.Rb1 Rb8 11.Bb3 Nd7=) 10...Ng4 (better is 10...c4 11.Qd2 cb3 12.ef6 Bf6 13.ab3 a5=) 11.h3 (11.Rb1 Qc7=) 11...Nh6 (better is 11...Bh4!? 12.Kf1 Nf2-/+) 12.g4 (12.Rb1 Qc7=) 12...c4 Black threatens to win material: c4xb3 13.Ba4 (13.dc4 Bb4 14.Bd2 dc4 15.Ba4-/+) 13...d4 (13...0-0 14.Qd2+=) 14.Bc6 (better is 14.Rb1!? looks like a viable alternative 14...Bh4 15.Kf1+- (15.Nh4?! Qh4 16.Ke2 Qe7+/-)) 14...Bc6+= 15.Ne4 Be4 16.de4 ½–½. Albertazzi,Lorenzo – Delfino,Luigi (2125), ITA–ch U20 Paderno del Grappa, 2000. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nf3 d6 6.Nc3 Nf6 7.Rb1 Qc8 (7...Be4?? 8.Ne4 Ne4 9.Bd5+-) 8.e5 de5 9.Ne5 e6 10.Qe2 (10.0-0 Bd6 11.Bb5 Nbd7+/-) 10...Be7 11.0-0 Nc6? (better is 11...0-0+=) 12.Rb7!+- Qb7 13.Bb5 Rc8 14.Qf3 (14.Nc6?! Rc6 15.Qf3 Kd7+=) 14...0-0 15.Nc6 Bd6 16.Ne5! Qc7 (16...Be5 17.Qb7 Discovered attack) 17.Ng4 Ng4 18.Qg4 Bh2 19.Kh1 f5 (19...Be5 20.Bb2+=) 20.Qf3 Be5 21.g3 (better is 21.Re1!?+/-) 21...f4= 22.g4 Qe7 23.Kg2 h5 (23...Rb8 24.Bc6+=) 24.Rh1 hg4 25.Qg4 Rf5? (25...f3 26.Kg1 Bc3 27.Bd3+/-) 26.Qh3?? (better is 26.Qf5! ef5 27.Bc4 Qf7 28.Bf7 Kf7 29.Nd5+-) 26...Kf7 27.Bc4 g6 28.Ne4 (28.Qg4!?+/-) 28...f3= 29.Kg1 Rh8 30.Qg4?? (better is 30.Qh8 Bh8 31.Rh8=) 30...Rf4?? (better is 30...Rh1 31.Kh1 Rf4 32.Ng5 Kf6-+) 31.Qf4!+- Bf4 32.Rh8 Qb7?? (better is 32...Kg7 33.Rh3 e5+-) 33.Rh7 (33.Rh7 Ke8 34.Rb7+-) 1–0. Chulivska,Vita (2190) – Merkulova,Irina, Evpatoria U18 Girls 4th, 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Bb7)

5.Nf3 Be4 6.Bf7!+- Kf7 7.Ng5 Ke8 8.Ne4 d6? (8...Nf6 9.Nc5 e5 10.Nb3+-) 9.Qf3?? (better 9.Qh5 g6 10.Qd5+-) 9...Nd7 (9...Nc6 10.Bb2 Qd7 11.Nbc3+=) 10.Bb2 (10.Ng5 Ne5 11.Qf4 Nh6+-) 10...Ngf6 (10...Ndf6 11.Bf6 Nf6 12.Nf6 gf6 13.0-0+-) 11.Ng5 (11.Bf6 Nf6 12.Nf6 gf6+-) 11...Rb8 (11...d5 12.Nc3 Rb8 13.Rb1+=) 12.Bf6 (12.Ne6 Qc8 13.Bc3 Ne5=) 12...Nf6 (12...ef6 13.Ne4=) 13.0-0+= e5 14.Nc3 Qd7 (14...d5 15.Rab1 Rb1 A) 16.Nb1?! h6 17.Ne6 Qd6 18.Nf8 Rf8= (worse 18...Qf8 19.c4+-); B) 16.Rb1+-) 15.Rab1+- Rb1 16.Qa8 Qd8 17.Qd8 Kd8 18.Rb1 (worse 18.Nb1 Kd7=+) 18...Kc8 19.Nf7 Rg8 20.Nb5 a6 21.Nbd6 (worse 21.Nfd6 Kd7 22.Nc4 ab5 23.Rb5 Bd6-/+) 21...Bd6 22.Nd6 Kc7 23.Nc4 e4 24.Kf1 (24.Rb6 Rb8 25.Rb8 Kb8+-) 24...Rd8+= 25.Ke2 Rd4 (25...Nd5 26.g3+=) 26.Ne3+- Rb4 (26...Nh5 27.g3+=) 27.Rb3 (27.Rb4 cb4 28.c4 bc3 29.dc3 Kc6+-) 27...Rb3 (27...Rd4 28.d3+-) 28.ab3 Kc6 (28...g5 29.d3+-) 29.h3 (29.d3 Kd7+-) 29...Kb5 (29...h5 30.h4+-) 30.Nc4 (30.Nf5 g6 31.Ng3 c4+-) 30...Kb4 (30...Kc6 31.d3+-) 31.Nd6 (31.Ke3 a5 32.c3 Kb3 33.Na5 Kc2+-) 31...a5 (31...Ka3 32.Ke3 Kb2 33.Ne4 Ne4 34.Ke4 Kc2 35.Kd5 Kb3 36.Kc5+=) 32.Ke3 (better 32.g4+-) 32...g5? (better 32...c4 33.Nc4 a4+-) 33.Ne4+- Ne4 34.Ke4 c4 35.d4 cb3 36.cb3 Kb3 37.d5 a4 38.d6 a3 39.d7 a2 40.d8Q a1Q 41.Qd3 Qc3?? (41...Kb4 42.Qd4 Qd4 43.Kd4 h6+-) 42.Qc3 Kc3 43.Kf5 h6 44.Kg6 Kd3 45.Kh6 Ke2 46.Kg5 Kf2 47.h4 (47.h4 Ke3 48.h5 Ke4 49.g4 Ke5 50.h6 Ke6 51.h7 Kf7 52.Kh6 Ke7 53.g5 Ke6 54.g6 Kf5 55.g7 Ke6 56.g8Q Ke5 57.h8Q Kd6 58.Qd4 Kc7 59.Qf7 Kc6 60.Qfd7) 1–0. Krastev,Goran (1995) – Yordanov,Hristo, Memorial Venka AsenovaAntonia Ivanova, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Bb7)

5.Nf3 Nf6!? 6.d3 d5 7.ed5 Bd5 8.Bd5 Nd5+=.

4.Bc4 Nc6

5.Ba3 d6 6.Bf7?? (better is 6.Nc3+=) 6...Kf7-+ 7.Qh5 g6?? (better is 7...Kf6-+) 8.Qd5= Be6 9.Qc6 Rb8 10.Nf3 Bh6 11.0-0 (11.Nc3 Qa5 12.Qa4 Qa4 13.Na4 Bg4=) 11...Qa5 (11...Nf6!? 12.Qa6 Ne4+=) 12.e5+= Rc8 13.Qb7 Rc7 14.Qb2 d5 15.Qc3 Qb5 16.Qb3 Qc6 17.d4+/- c4 18.Qb4 Bg4 19.Nbd2 Bd2 20.Qd2+/- Bf3 21.Qf4 Kg7 22.Qf3 e6?? 23.Qf8 1–0. Freyberg,Dominic – Beume,Torsten, JBLN Ost, 1998. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.c3 Nf6= 6.d3 g6 7.Qb3 Ne5 8.Bb5 (8.Nf3 Nc4 9.Qc4 d6=) 8...a6 (8...Rb8 9.c4 a6-/+) 9.f4+= ab5 10.fe5 Ng4 11.Nf3 (11.Qb5? Ne5 12.Kd1 Ra5-+) 11...Qb6 12.h3 Nf2 13.0-0 Nd3 14.c4 (14.Qd5 c4 15.Nd4=) 14...Nc1 15.Rc1 b4 16.Nc3 (16.a3 Bg7-/+) 16...Bh6 (16...Ra3 17.Qb2-+) 17.Rcb1 Qa5 (17...Qc6!? 18.Nd5 Ra3-/+) 18.Nd5-/+ Bb7 (18...Qa7 19.a3+=) 19.Qd3 (19.a3 Bg7=) 19...Bd5 20.ed5 0-0 21.Rb3 Bg7 22.Qe4 Qc7 (22...f6 23.d6 e6 24.Rbb1-+) 23.Kh1 (23.a3 d6-/+) 23...Ra6 24.Rb2 (24.a3 d6-+) 24...Rfa8 25.Qe2 d6 26.e6 (26.Re1-+) 26...f5 27.Ng5 Rf8 (27...Ra3!? 28.Rab1 Bb2 29.Rb2-+) 28.Rf1 (28.Nf7 Ra3-+ (28...Bb2?! 29.Qb2 Rf7 30.ef7 Kf7 31.Qh8=)) 28...Bb2 29.Qb2 Rf6 30.Rf2 Ra3 31.Kh2 Qb8 32.Nf7 Qf8 33.Qd2 Rf7 34.ef7 Qf7 35.Qf4 (35.Re2 Qf6 36.Qe1 f4-+) 35...Qg7 (35...e5!? 36.de6 Qe6 37.g4-+) 36.Re2 Qf6 37.Re6 Qg7 38.Qg5?? (38.Re2 Qd4 39.Qg5-+) 38...Kf8 (38...Ra2?! 39.Re7 Qf8 40.Qh4+=) 39.Re2 Rc3 40.Qf4 Rd3 41.Re6 Rd4 42.Qf1 Qh6 43.g3?! Rd2 44.Re2 Re2 45.Qe2 Qg7 46.h4 Qe5 47.Qd2 e6 48.de6 Qe6 49.Qf4 Qe5 50.Qh6 Qg7 51.Qf4 Qe7 52.Kh3 Kg7 53.Qf3 Qe4 54.Qf1 d5 55.cd5 Qd5 56.Qa1 Qd4 57.Qe1 Qe4 58.Kh2 0–1. Orenda,Omar (2135) – Aguilar,Filipina (1855), 7th Mediterranean Ch, 2009. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Bc4 Nc6)

5.c3 g6 6.Nf3+= Bg7 7.0-0 Nf6 8.e5 Ng8 9.d4 cd4 10.cd4 (worse is 10.Nd4 Ne5 (10...Be5? 11.Nc6 Bh2 12.Kh2 Qc7 13.Kg1 dc6 14.Re1+-) 11.Be2 Bb7+=) 10...Nh6 11.Bg5 Qa5 (11...Nf5 12.Nc3+=) 12.Nbd2 Nf5 13.Re1 Nfd4? (13...d5 14.ed6 Nd6+-) 14.Nd4+- Nd4 (14...Ne5 15.f4 f6 16.fe5 fg5 17.N2b3+-) 15.Nb3 Nb3 16.ab3 (16.Qb3?! e6 (16...Be5? 17.Bf7 Kd8 18.Bd5+-) 17.Qf3 Rb8+=) 16...Qc5 17.Bf7! Kd8 (17...Kf7 18.Qf3 Double attack) 18.Qd6 Qd6 19.ed6 Bb7 20.Re7 Kc8 21.Rc1 Bc6 22.Rc6! dc6 23.Be6 Kb8 24.Bf4 g5 25.Bg3 Bf6 26.d7 Kb7 27.d8N Kb6+- 28.Rb7 Kc5 29.b4 Kd4 30.Nc6 Kc3 31.Rc7 Rhe8 32.Ne5 Kb4 33.Nd3 Ka5 34.Rc5 Ka4 35.Rc4 Ka3 36.Nc5 Kb2 37.Rb4 Kc3 38.Rb3 Kd4? 39.Bd6 Re6 40.Ne6 Kc4 41.Rb1 a5 42.Rc1 Kd3 43.Ba3 Ke2 44.f4 g4 45.f5 Rb8 46.Nf4 Kd2 47.Rf1 Bd4 48.Kh1 a4 49.Bc1 Kc2 50.Ne6 Bf6 51.Ba3 Rb3 52.Bc5 Rd3 53.Nf8 a3 54.Ba3! Ra3 55.Nh7 Ra6 56.Nf6 Rf6 57.h3 g3 58.Rf3 Kd2 59.Rg3 Rf5 60.Ra3 Ke2 61.Kh2 Kf2 62.h4 Rf4 63.Rf3! (63.Rf3 Rf3 64.gf3 Kf3 65.h5+-) 1–0. Hodot,Yves (1915) – Valles,Manuel (2245), Vaujany FRA, Open, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5)

5.Nc3 Rb8 6.Nf3 g6 7.0-0 Bg7 8.Rb1 Rb1 9.Nb1 e6 10.c3 Qb6 11.Ba3 Nge7 12.Re1 d6 13.h4 0-0 14.h5 Ne5 15.Ne5 Be5 (15...de5?! 16.h6 Bh6 17.d4+=) 16.hg6 hg6 17.Qb3 Bd7 (17...Nc6 18.Bb2+=) 18.d4= cd4 19.Qb6 ab6 20.cd4 Bd4 21.Bd6 Rc8 22.Na3 Bc5 23.Rd1 Ba4 24.Bc5 Rc5 25.Rd8 Kg7 26.Rb8 Nc8 27.Ba6 Nd6 28.Rb6 Ne4 29.Rb4 Rc1 30.Kh2 Bc6 31.f3 Nc3 32.Rb2 Bd5 33.Bc4 Bc4 34.Nc4 Na2 35.Ne5 Rc5 36.f4 Nc3 37.Rb7 Nd5 38.Rf7 Kg8 39.Rb7 Nf4 40.Rb8 Kg7 41.Rb7 Kg8 42.Rb8 Kg7 43.Rb7 Kh6 44.Nf7 Kh5 45.Rb2 Kg4 46.g3? (better is 46.Nh6 Kg5 47.Nf7 Kf6 48.Rf2 Rh5 49.Kg3+=) 46...Rh5-+ 47.Kg1 Kg3 48.Rb3 Kg4 49.Re3 Rh3 50.Re5 (50.Kf2-+) 50...Rh5 (better is 50...Rh7!? 51.Ng5 Rh5 52.Nf7-+) 51.Re3 Nh3 52.Kg2 Nf4?? (better is 52...Ng5 53.Ne5 Kf5-+) 53.Kg1= ½–½. Ayza Leon,D (2205) – Magallanes,Gustavo (1905), XVII Sant Marti Open, 2015. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nc3 d6 6.Bf7 Kf7 7.Qh5 g6 8.Qd5 e6 9.Qc6 Rb8 10.Nge2 Rb4 11.Qa8 Qd7 12.Rb1 (better 12.a3 Rb6 13.Rb1+=) 12...Ne7 13.Rb4 cb4 14.Qb8 bc3 15.Nc3 Ba6 16.Qb3 Nc6 17.Qa4 Qb7 18.Ba3 Be7 (18...Bg7 19.Bc1-+) 19.d3 Rb8 20.0-0 Bb5 21.Qb3 Qa6 (21...Nd4!? 22.Qb1 Ba6 23.Qd1-+) 22.Nb5 Rb5 23.Qc3 (23.Qc4 Ra5 24.Qa6 Ra6-+) 23...Bf6 24.e5 (24.Qc4 d5 (24...Qa3?! 25.Qb5 Qc3 26.Qa4=) 25.ed5 ed5-+) 24...de5 (better 24...Be5 25.d4 Nd4 26.Qc7 Ke8 27.Qh7 Qa3 28.Qg6 Kf8-+) 25.Bc1 Qb7 (25...e4!? 26.Qc4-+) 26.Qd2 Nd4 27.f4? (27.c3 Nf5-+) 27...Kg8 (better 27...ef4!? 28.Rf4 Qc7 29.Rf2-+) 28.c3 Nf5 29.g4 Qb6 (29...Nd6 30.c4 Rb1 31.Qc3-+) 30.Kg2 (30.Qf2 Qf2 31.Kf2 Ne7-+) 30...Qc6 31.Kh3 Nd6 32.fe5 Be5 33.Qf2 Bg7 34.Bf4 Rb7 (34...e5 35.c4 Rb7 36.Be3-+) 35.Qe3? (better 35.Qg2 Qg2 36.Kg2-+) 35...Nf7 36.d4 Rb2 37.Rf3 (37.Qf3 Qf3 38.Rf3 Ra2-+) 37...Ra2 38.Bg3 (38.Qd3-+) 38...Bh6 (better 38...Qf3! 39.Qf3 Ng5 40.Kh4 Nf3 41.Kh3-+) 39.Bf4 Bg7 40.Bg3 h6 (better 40...Qf3! 41.Qf3 Ng5 42.Kh4 Nf3 43.Kh3 Rc2-+) 41.Bf4 Qd5 (better 41...e5 42.de5 Ne5 43.Rg3-+) 42.Kg3 (42.Rf2-+) 42...e5 43.de5 (43.Be5 Ne5 44.Rf2 Ra3-+) 43...Ne5 (43...g5 44.e6 gf4 45.Qf4-+) 44.Rf2 Rf2 45.Qf2 Qd3 46.Kg2 Ng4 47.Qa7 Qc2 48.Kg3 (48.Kg1 Qb1 49.Kg2 Qb2 50.Kg1 Bc3 51.Qb8 Qb8 52.Bb8 Kf7-+) 48...h5 49.c4 (49.Kf3 g5 50.h3 Qd1 51.Kg2 Qe2 52.Kg1 gf4 53.hg4-+) 49...Qc4 0–1. Husarik,Branko (2155) – Rajnys,Vladimir (2055), CZE–ChT1W, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nf3 d6 6.0-0 Bd7 7.Ng5 e6 8.f4 Be7 9.Bb2 (9.d3 Rb8=) 9...Bf6 (9...Bg5 10.fg5 Qg5 11.Qf3+=) 10.e5 (10.Bf6 Qf6 11.Na3 h6=) 10...Bg5 (10...de5!? 11.Qh5 g6-/+) 11.fg5= d5 (11...Qg5 12.Qf3 Nh6 13.ed6=) 12.Qf3 (better is 12.Qh5!? Qe7 13.Bd5+/-) 12...Qe7= 13.Be2 Rb8 14.Ba3 Nd4 (worse is 14...Ne5 15.Qe3 Nc6 16.Bc5+/-) 15.Qf2 Ne2 16.Qe2 Bb5 17.d3 Qg5 18.Bc5 Rb7 19.Nc3 Ne7 20.Qf2 0-0? (better is 20...Rf8+/-) 21.Nb5+- Rb5 22.h4 Qg6 (22...Qh5 23.Be7 Rfb8 24.Qf4+-) 23.Be7 Re8 24.Bc5 (24.Qa7 Rb2 25.Qc7 Rbb8+-) 24...a6 25.a4 Rb7 26.Be3 Rc8 27.Ra2 (27.Rab1 Rcb8 28.Rb7 Rb7+-) 27...Qh5 28.Qf4 Rbc7 29.Rc1 h6 30.Rb2 Kh7 31.c4 Rd7 32.c5 Rdc7 33.Rcb1 Ra8 34.d4 Rac8 35.Bf2 1–0. Choba,Yulia (1830) – Ilyuk,Ekaterina, UKR–ch U16 Girls sf, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nf3 d6 6.0-0 Nf6 7.Nc3 g6 8.Re1 Bg7 9.Rb1 0-0 10.h3 Bd7 11.e5 Ne8 12.ed6 Nd6 13.Bd5 e6 14.Bc6 Bc6 15.Ne5 Bb7 16.Ba3 Qa5 17.Rb3 Rfd8 18.Qg4 Qc7 19.d3 Nf5 20.Nc4 a6 21.Reb1 Rab8 22.Ne2 h5 (22...Bd5!?+=) 23.Qf4= e5 24.Qd2 Bd5 25.Rb8 Rb8 26.Rb8 Qb8 27.Nc3 Bh6 ½–½. Jakivchik,Miroslava – Aksionova,Tatiana (2200), UKR–ch sf U20 Girls, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nf3 d6 6.0-0 Nf6 7.d3 g6 8.Be3 Bg7 9.c3 0-0 10.Nbd2 Ng4 11.d4 Ne3 12.fe3 a5 13.Bd5 Qc7 14.Rb1 e6 15.Bb3 Ba6 16.Rf2 Bd3 17.Rc1 a4 18.Ba4+= Bh6 19.Ne1 Ba6 20.Qf3 Bb7 21.Bb3 Na5 22.Bc2 f5 23.Qh3 Qg7 24.Nf1 cd4 25.cd4 Nc4 26.ef5 gf5 27.Bf5 Rf5+= 28.Rf5 ef5 29.Rc4 Ra2 30.Rb4 Ra1 31.Nc2 Ra2+= 32.Rc4 Qg6 33.Rc7 Rb2 34.Nd2 Ba6? 35.Qf3+- Rb8 36.Na3 Qe6 37.Nac4 Bc4 38.Nc4 Re8 39.Kf2 f4 40.e4 d5 41.Ne5 de4 42.Qe4 f3?? 43.Qh7 Kf8 1–0. Lujan,Carolina – Mikey,Santiago, Intercoop tt (1), 1998.

5.Nf3 d6 6.0-0 Nf6 7.Ng5 e6+= 8.f4 (8.Nc3!?+=) 8...Be7 9.f5 (9.Nc3 h6 10.Nf3 Rb8=) 9...d5 (9...h6!? 10.Nf7 Kf7 11.fe6 Kg8-/+) 10.Bb5= Bd7?? (better is 10...Qb6 11.fe6 Qb5 12.ed5 Qc4 13.dc6 Qd4 14.Kh1 Qa1=) 11.fe6+- fe6 12.Ne6 Qb6 (12...Be6 13.ed5 Double attack (13.Bc6 Deflection; 13.ed5 Decoy; 13.Bc6 Overloading)) 13.Ng7 (13.ed5!? c4 14.Kh1 Nb4 15.Ng7 Kd8 16.Bd7 Kd7+-) 13...Kf7 (13...Kd8 14.Bc6 Qc6 15.Nf5+-) 14.Bc6 Bc6 (14...Qc6 15.Nh5 Kg8 16.Qf3+-) 15.e5 (better is 15.Nf5 de4 16.Na3+-) 15...c4? (15...Kg7 16.ef6 Bf6 17.Qg4 Kf7+-) 16.Kh1 Kg7 17.ef6 Bf6 18.Qg4 Kf7 19.Qf4 Bb7 20.Nc3 (20.Bb2 Qb2 21.Nc3 Qb6+-) 20...Rab8 (20...Rhf8 21.Rb1 Qc6 22.Rb7 Qb7 23.Qg5+-) 21.Rb1 Qc6 (21...Qe6 22.Ba3 d4+-) 22.Nd5! Rhg8 (22...Qd5 23.Qf6 Deflection (23.Qf6 Overloading)) 23.Qf6 (23.Qe5 Rg6 24.Qb8 Bc8 25.Qa7 Qd7+-) 23...Qf6 24.Rf6 (24.Nf6?? Bg2 25.Kg1 Rb1 26.Ng8 Bf1 27.Nh6 Kg6-+) 24...Ke8 (24...Kg7 25.Bb2 Bd5 26.Rb6 Kf7 27.Rf1 Ke7 28.Ba3 Kd7 29.Rd6 Kc8 30.Rd5+-) 25.Re6 (better is 25.Ba3!? Kd7 26.Rd6 Kc8 27.Ne7 Kc7 28.Ng8 Rg8+-) 25...Kd7 26.Re7 Kc6 27.Ne3 1–0. Szurkos,Andras (1705) – Bacsi,Andras (1745), First Saturday FM–B Oct, 2014. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nf3 e5 6.0-0 g6 7.c3 Bg7 8.d4 Nge7 9.dc5 0-0 10.Be3 Na5 11.Bd5 Nd5 12.ed5 Ba6 13.Re1 Nc4 14.Qa4 Qc8 15.Nbd2 Nb2 16.Qh4 f5 17.Bh6+- Nd3 18.Ng5 Qc5?? 19.Bg7 Kg7 20.Qh7 Kf6 21.Nge4! (21.Nge4 fe4 22.Ne4 Kf5 23.Qh3 Kf4 24.Qf3) 1–0. Montheard,Xavier (2220) – Costagiola,B, Saint Quentin op (8), 1998.

5.f4 e6 6.Bb2 Rb8 7.Bc3 d5 8.ed5 ed5 9.Qe2 Nge7 10.Bb5 Bd7 11.Bc6 Bc6 12.Be5 Rb4 13.d3 f6 14.Bc3 Rf4 15.Nh3 Rf5 16.g4? (better is 16.d4 h5 17.Nd2-/+) 16...d4-+ 17.gf5 Bh1 (17...dc3 18.Rf1+=) 18.Bd2 Qd5 19.Na3 Bf3 20.Nb5 Qf5?? (better is 20...Be2 21.Nc7 Kf7 22.Nd5 Bg4-+ (worse is 22...Nd5 23.Ke2 Bd6 24.Nf2-+)) 21.Nd6= Kd7 22.Nf5?? (better is 22.Qe7! Ke7 23.Nf5 Kd7 24.Nf4=) 22...Be2-+ 23.Ne7 Bg4 24.Nf2 Be6 25.Rb1 Be7 26.Rb7 Ke8 27.Rb8 Bd8 28.Ne4 Kf7 29.Rb7 Kg6 30.Nc5 Bd5 31.Ra7+= Bb6 32.Rd7 Re8 33.Kf2 Ba2 34.Ne4 Bb1 35.Rb7 Re6 36.Nc5 Rc6?? 37.Na4 Rc2+= 38.Rb6?? Rd2-+ 39.Ke1 Rh2 40.Rd6 Bd3 41.Rd4 Bc2 42.Nc5 h5 43.Ne6 Bf5 44.Nf4 Kg5 45.Ne2 Bg4 46.Ng3 f5 47.Nf1 Re2 (47...Re2 48.Kd1 Re4 49.Kc2 Rd4-+) 0–1. Johnsen,Svein Harald (1765) – Esbensen,Hans Fredrik, Klubbmesterskap, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Qh5 e6= 6.Bb2 Nf6 7.Qe2 Nd4 8.Qd3 (8.Bd4!? cd4 9.e5=) 8...Qb6+= 9.Bc3 Bb7 10.f3 d5 11.ed5 Nd5 12.Bd4 (12.Ne2!? e5 13.Na3+=) 12...cd4-/+ 13.Bb5 Bc6 14.Bc6 Qc6 15.Qd4? (15.a3 Qa4 16.c3 Rb8-/+) 15...Qc2?? (better is 15...Nb4 16.Kd1 Nc2-+) 16.Ne2 Qc5 (better is 16...Nb4!? 17.Nbc3 Rd8 18.Qa7 Bc5 19.Qa4 Qa4 20.Na4 Nc2 21.Kd1 Na1 22.Nc5 Ke7-/+) 17.Qa4= Ke7 18.Na3 (18.Nbc3 Nb6 19.Qh4 Ke8=) 18...Kf6 19.Nb5 a6 (19...Qb4 20.Qb3+=) 20.Nbd4 Nb6 21.Qb3 Qb4 22.Qd3 Qc4 23.Qe4 Nd5 24.0-0 Ba3 25.d3 Qc5 26.Kh1 Rac8 27.Qh4+/- g5 28.Qh6 Ke7 29.Qg5 Nf6 30.Qh4 Rhg8 31.Rab1 Qg5 32.Rb7 Ke8 33.Qh3 h5 34.Ne6 Qg2? 35.Qg2+- Rg2 36.Kg2 fe6 37.Nd4 e5 38.Re1 Nd7 39.f4 Bc5 40.Ne6 Bd6 41.fe5 Rc2 42.Kh1 Ne5 43.d4 Nf3 44.Ng7 (44.Ng7 Kd8 45.Re8) 1–0. Nasikan,Nikolai – Kukartsev,Igor, Kiev Independence Cup–B 5th, 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

5.Nf3 e6

6.0-0 Be7 7.Bb2 Nf6 8.e5 Nh5 9.Nc3 Bb7 10.Re1 0-0 11.Nb5 Ba6 12.a4 Nf4 13.d4 Na5 (13...cd4!? 14.Re4 Ng6=) 14.Bf1+= c4 15.Nd2 Rc8 16.Ne4 Nd5 17.Nbd6 Rb8 18.Bc1 (18.Ba3 Qc7+=) 18...f5 19.Nc5 Bd6 20.Na6 Rb6 21.ed6 Ra6 22.Ba3 Rc6 23.Re5 Nb7 24.Qf3 Qf6 25.Rd5 ed5 26.Qd5 Qe6 (26...Qf7 27.Qb5 Rb8+/-) 27.Qe6+= de6 28.Re1 Kf7? (better is 28...Nd6 29.Re6 Rd8+=) 29.d5!+- Rd6 (29...ed5 30.Re7 Double attack) 30.de6 Ke7 (30...Kf6 31.Rb1 (31.Bd6?! Nd6 32.f4 Rb8+=) 31...Rc8 32.Rb7 Re6 33.Ra7+-) 31.Bc4 (better is 31.Rb1!? Rb8 32.Bc4 g5+-) 31...Rc8 32.Ba6 Rc7 33.Bb7 Rb7 34.Rd1 Rbb6 35.Bd6 Rd6 36.Rd6 Kd6 37.Kf1 Ke6 38.Ke2 Kd5 39.Kd3 Kc5 40.c3 ½–½. Vastrukhin,Oleg (2310) – Kovalenko,Alexander (2255), Elista, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6 5.Nf3 e6)

6.0-0 Nge7 7.Nc3 a6 8.a4 g6 9.Ba3 Qa5 10.Re1 Bg7 11.e5 0-0 12.Ne4 Ne5 13.Nd6?? (better is 13.Ne5 Be5 14.Bc5+/-) 13...Qc7 14.d4 Nc4 (14...Qd6?! 15.de5 Qc6 16.Qd6 Qd6 17.ed6=) 15.Nc4 d5 16.Nce5 c4 17.c3 Rd8?? (better is 17...f6 18.Ng4 Rb8-/+) 18.Be7+= Qe7 19.Nc6 Qd7 20.Nd8 Qd8 21.Rb1 Bd7 22.Qc2 Qa5 Attacks the isolani on a4 23.Ra1 Rb8 24.Nd2 Bh6 25.Reb1 Rb1 26.Nb1 Bf4 27.g3 Bd6 28.f4 Kg7 29.Ra2 Bc6 30.Nd2 f6 31.Nf3 Kf7 32.h4 Kg7 33.Kf2 h5 34.Ke3 Kf7 35.Nh2 Qb6 36.g4 Qb3 37.gh5 Qc2 38.Rc2+= Ba4 39.hg6 Kg6 40.Rg2 Kh5 41.Ra2 Bb5 42.Nf3 Bc7 43.Rg2 Kh6 44.Rg8 Bd6 45.Ra8 Kg6 46.Nh2 Kf5-/+ Attacking the isolated pawn on f4 47.h5?? Bf4-+ 48.Kf3 Bh2 49.h6 Kg6 50.Rg8 Kh7 51.Rf8 f5 52.Rf6 a5 53.Re6 a4 54.Rb6 Be8 55.Ra6 Bg6 56.Ra4 Kh6 57.Ra5 Bf7 58.Ra8 Kg6 59.Rd8 Bc7 60.Ra8 Kf6 61.Ra6 Be6 62.Ra7 Bd6 63.Ra6 Bf8 64.Ra8 Bh6 65.Ra3 f4 66.Ra6 Bg5 67.Rd6 Kf5 68.Ra6 Bf7 69.Ra8 Bh5 70.Kg2 Ke4 71.Rh8 Bf3 72.Kf2 Bd1 73.Rh1 Bg4 74.Rh8 Kd3 75.Rg8 Bh4 76.Kg1 Bf3 77.Rh8 Bg3 78.Ra8 Be4 79.Ra3 f3 80.Kf1 Bf4 81.Kg1 Bh2! 82.Kh2 f2 83.Kg3 Bf5 84.Kg2?? Bh3 85.Kh3?? f1Q-+ (85...f1Q 86.Kg3 Qc1-+) 0–1. Shcherbashin,Roman (1780) – Markin,Dmitri, Borisoglebsk RUS, City Ch, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

6.0-0 Nf6 7.Nc3 A) 7...Rb8 A1) 8.e5 Ng4 9.Re1 d5 10.ed6 Bd6+= 0.29; A2) 8.Qe2 d6 (8...Ng4 9.Re1 Nge5 10.Ne5 Ne5= 0.21) 9.a4 Be7 10.Bb5 Bd7= 0.01; A3) 8.d3 d6 (8...a6 9.Bf4 d6 10.Qd2 Nd4+= 0.37) 9.Bf4 Nd7 10.Qd2 Be7+= 0.30; B) 7...d6 B1) 8.Rb1 a6 (8...Be7 9.d4 cd4 10.Nd4 Bd7+= 0.37) 9.Qe1 Nd7 10.Bb2 Be7= 0.23; B2) 8.Re1 Rb8 (8...Be7 9.d4 cd4 10.Nd4 Nd4= 0.18) 9.Rb1 Rb1 10.Nb1 Be7= 0.05; B3) 8.d4 cd4 9.Nd4 Bd7 10.Ndb5 Na5+= 0.52; C) 7...a6 C1) 8.Re1 Rb8 (8...d6 9.d3 Be7 10.Rb1 Nd7= 0.23) 9.d3 d6 10.Rb1 Rb1= 0.16; C2) 8.Bb2 d6 (8...Rb8 9.Rb1 Bd6 10.Ne2 Ne4= 0.18) 9.Rb1 Be7 10.d4 cd4= –0.05; C3) 8.Rb1 Bd6 (8...d6 9.Qe1 Nd7 10.Qe3 Be7= 0.23) 9.d3 0-0 10.Na4 Qc7= 0.20.

6.0-0 Nf6 7.d3 A) 7...d6 A1) 8.Bf4 Rb8 (8...Be7 9.Nc3 a6 10.Rb1 0-0+= 0.29) 9.Nbd2 Be7 10.c3 0-0= 0.20; A2) 8.Na3 Rb8 (8...Be7 9.e5 de5 10.Bb2 0-0= 0.25) 9.Bb5 Bd7 10.Rb1 Be7= 0.14; A3) 8.Nc3 a6 (8...Rb8 9.Bf4 a6 10.Qd2 Nd4+= 0.37) 9.Rb1 Be7 10.Bf4 0-0+= 0.29; B) 7...Rb8 B1) 8.c3 d6 (8...d5 9.ed5 Nd5 10.Ng5 Bd6+= 0.38) 9.Bf4 Be7 10.Qa4 Bd7+= 0.27; B2) 8.a4 Be7 (8...d6 9.Bf4 Be7 10.Nbd2 0-0= 0.13) 9.Bf4 d6 10.Nbd2 0-0= 0.13; B3) 8.Bf4 d6 (8...Rb6 9.Nc3 d5 10.Bb5 a6+= 0.60) 9.Nc3 a6 10.Qd2 Nd4+= 0.37; C) 7...Be7 C1) 8.Qe2 0-0 (8...d6 9.e5 de5 10.Ne5 Ne5= 0.23) 9.e5 Ne8 10.c3 d5= –0.04; C2) 8.Bf4 0-0 (8...d5 9.Bb5 Bd7 10.Bc6 Bc6= 0.21) 9.e5 Ne8 10.Nbd2 f6= 0.02; C3) 8.Nc3 0-0 (8...d5 9.Bb5 Bd7 10.Bc6 Bc6+= 0.46) 9.Rb1 d5 10.Bb5 Bd7= 0.18.

6.0-0 Nf6 7.Re1 d6 8.Bb2 Rb8 (8...Be7 9.Na3 Rb8 10.Rb1 0-0= 0.07) 9.Bc3 e5 (9...Bb7 10.d4 d5= 0.05) 10.d3 (10.Ng5 Rb7= 0.25) 10...g6 (10...Be7= 0.07) 11.Nbd2 Bh6 12.Nf1 0-0 13.Ne3 Be6 14.Be6 fe6 15.Nc4 Nh5 16.g3 Rb7 17.Rf1 Rbf7 18.Ne1 d5 (18...Qe7!?+=) 19.Ne5= Ne5 20.Be5 Be3 21.Qg4 Qb6 22.Ng2?? Bf2-+ 23.Kh1 de4?? 24.Qe4= Nf6 25.Bf6 Rf6 26.Nf4 Bd4-/+ 27.Rab1 Qa5 28.Rfe1 Qa2 29.c4 Bc3 30.Rec1 e5 31.Nh3 R6f7 32.Qd5 Kg7 33.Qc5 Bd4 34.Qd5+= Qe2 35.Nf4 ef4 36.Qd4 Kh6 37.Qe4 Qe4 38.de4 fg3 39.hg3 Rf2 ½–½. Meczynski,Waldemar (2130) – Urbanski,Grzegorz (2175), DMP – II liga seniorow Poland, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6)

6.0-0 Nf6 7.e5 A) 7...Nd5 A1) 8.Na3 Be7 (8...Rb8 9.Nb5 Ba6 10.a4 Nb6+= 0.44) 9.Rb1 0-0 10.Qe2 Na5= 0.23; A2) 8.Re1 Nb6 (8...Be7 9.d4 Nb6 10.Bf1 0-0+= 0.29) 9.Bb5 Bb7 10.Nc3 d5= 0.25; A3) 8.Nc3 Nc3 (8...Nb6 9.Bd3 d5 10.ed6 Bd6+= 0.60) 9.dc3 Be7 10.Qe2 0-0+= 0.50; B) 7...Ng4 B1) 8.Bb2 Rb8 (8...d6 9.ed6 Rb8 10.Bb3 Bd6+= 0.26) 9.Bc3 Be7 10.Qe2 f6= –0.19; B2) 8.Re1 Qc7 (8...d6 9.ed6 Bd6 10.Nc3 0-0+= 0.29) 9.Nc3 Nce5 10.Ne5 Ne5= 0.09; B3) 8.Qe2 Qc7 (8...d5 9.ed6 Qd6 10.c3 Bb7+= 0.39) 9.Re1 d5 10.ed6 Bd6= 0.22.

6.Nc3 d6 7.Rb1 Nf6 8.0-0 Be7 9.d4 cd4 10.Nd4 Bd7 11.Bb5 Qc7 12.Ba3 0-0 (12...a6!? 13.Bc6 Bc6 14.Nc6 Qc6=) 13.Bc6+= Bc6 14.Ndb5 Bb5 15.Nb5 Qc4 16.e5 Nd5 17.ed6 Bf6 18.Rb3 Rfc8 19.d7 Rd8 20.Nd6 Qc6 21.c4 Nb6 22.c5 Nd5 23.Qb1 Rd7 24.Rb8 Rd8 (24...Rb8 25.Qb8 Rd8 26.Rb1= (worse is 26.Qa7 Nf4 27.Qf7 Kh8-/+)) 25.Rb7 (25.Qb7!? Qb7 26.Rb7+/-) 25...Nf4 26.Qe4 Rd6 27.Qf4 Rd4 28.Rb8 Rd8 29.Ra8 Qa8 30.Rb1 (30.Qc7!? Rd5 31.h3+=) 30...Qd5-/+ 31.g3 (31.Qf3!? Qa2 32.Rc1-/+) 31...Qa2-+ 32.Qc1 (32.Qb4-+) 32...Bd4 33.Bb2 Bc5! 34.Ra1 (34.Qc5 Qb1) 34...Qd5 35.Qc3 f6 36.Ra5? (36.Rc1 Bb6 37.Ba3-+) 36...Qd1 37.Kg2 Bb6 (37...Bf2!? 38.Qc4 Bg3 39.Bc1 Bh2 40.Kh2 Rd2 41.Bd2 Qd2 42.Kg1 Qa5 43.Qe6 Kf8 44.Qd6 Kf7 45.Qd7 Kg6 46.Qe8 Kh6 47.Qe4-+) 38.Ra1 Qd2 (38...Qd2 39.Rf1 a5-+) 0–1. Borishkevich,Roman – Krupko,Alexey (2115), Evpatoria tt U20, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 Nc6 5.Nf3 e6)

4.Bc4 e6

5.Bb2 Nc6 6.Nc3 Nf6 7.Nf3 d6 8.d4 (8.0-0 Be7+=) 8...cd4 (8...Qb6!? 9.Bb5 Ne4=) 9.Nd4= Bd7 10.Ndb5 (10.Rb1 Rb8 11.0-0 Be7=) 10...Ne5 11.Be2 Qb6 12.Ba3 Bb5 (12...d5 13.Bf8 Kf8 14.ed5 Bb5 15.Nb5= (worse is 15.Bb5 Rc8-/+)) 13.Bb5+= Ned7 14.Rb1 Qc7 15.Qf3 Rb8 16.0-0 Be7 17.Rfd1 0-0 18.Qg3 Ne5 19.h3 Rfd8 20.f4 (20.Rb3 Rb6=) 20...Nc4 (20...Nh5!? 21.Qe3 Nf4-/+) 21.Bc4= Rb1 22.Rb1 (worse is 22.Nb1 Qc4 23.Nd2 Qc2-/+ (worse is 23...Qa2 24.Qc3=)) 22...Qc4 23.Rb7 Bf8 24.e5 Ne8 25.Qf3 Rc8 26.Ne4 (26.Nb5 a6 27.Nd6 Nd6 28.Bd6 Bd6 29.ed6 Qd4 30.Kh1 Qd6=) 26...Qa6 (better is 26...d5 27.Ng5 Ba3 28.Qa3 h6 29.Nf7 Qd4 30.Kh2 Rc2=) 27.f5?? (27.Rb2 Qa4 28.Kh2 d5 (worse is 28...Rc2 29.Rc2 Qc2 30.Nd6=) 29.Bf8 Kf8= (worse is 29...Qe4 30.Qe4 de4 31.Bb4=)) 27...ef5?? (better is 27...d5 28.Bf8 Qb7-+) 28.Ng5+= h6? 29.Nf7?? Rc7 30.Rc7+/- Nc7 31.Nd6+- Ne8? 32.Qd5 Kh7 33.Bc5 Nc7? 34.Qf7 Qa5 35.Qf5 Kg8 36.Qf7 Kh7 37.Bd4 Qd2 38.c3 Qe1 39.Kh2 Bd6 40.ed6 Ne6 41.d7 Nd4 42.cd4 Qa5 43.Qf4 1–0. Suchsland,Helmut (1720) – Spurga,Josef (1850), Wch Seniors, 2003. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

5.c3 d5 6.ed5 ed5 7.Qf3 Nf6 8.Na3 Bg4 9.Bb5 Nbd7 10.Qg3 Be7 11.Bc6 Rb8 12.Bd7 (12.Bd5!? 0-0 13.Nf3+=) 12...Kd7-/+ 13.f3 Bd6 14.Qh4 Re8 15.Kd1 Bf5 16.g4?? (16.Qa4!? Ke7 17.Qa7 Kf8 18.Nc2-+) 16...Bd3 (better is 16...Ng4 17.Qd8 Kd8 18.fg4 Be4-+ (worse is 18...Bg4 19.Kc2-+)) 17.g5 Ng8 (17...Qa5 18.Nc2 Rb4 19.Qh3 (worse is 19.cb4 Qa4 20.Ne2 Qc2 21.Ke1 Re2 22.Kf1 Rd2 23.Ke1 Rd1) 19...Rg4 20.Rb1-+) 18.Qg4 Kc7 19.Nc2 Qe7 20.Ne3 Kc6 (20...Kd8!?-/+) 21.Nh3+= Qe5 22.f4? (22.Qa4 Bb5 23.Qc2 Kd7-/+) 22...Qe7 (better is 22...Qe4!? 23.Nf2 Qa4 24.Ke1 Bg6-+) 23.Nf2+= Be4 24.Rg1 c4 25.h4 Qc7 (25...f5 26.Qg3-/+ (26.Nf5?? Bf5 27.Qf5 Qe2 28.Kc2 Qf2-+)) 26.f5 (26.Ne4 Re4 27.Qf5 Rf4 28.Qd5 Kd7=) 26...Bh2 27.Rf1 Qg3 (better is 27...Qa5!?+=) 28.Ne4+= Re4 29.Qh5 Rb7 (29...Qh4 30.Qf7 Re3 31.de3 Qg4 32.Ke1 Bg3 33.Kd2=; worse is 29...Rh4 30.Qf7 Qg5 31.Qd5 Kc7 32.Qf7 Kc6 33.Qe6 Bd6 34.Ba3+-) 30.Qh7? (better is 30.d4 Re3 31.Be3 Qe3 32.Qf3 Qf3 33.Rf3-+) 30...Re3! 31.Qg8 Qg4 32.Kc2 Rc3!! 33.Kc3 Be5 34.Kc2= Qe4 35.Kd1 Ba1 36.Qc8 Rc7 37.Qa6 Kd7 38.Qb5 Kc8 39.Ba3 d4 40.Qa6 Qb7 41.Qb7 Rb7 42.Kc2 d3+= 43.Kc1 c3 44.dc3 Bc3 45.Rf3 d2 46.Kc2 Ba5 47.Rd3 Rb5 48.f6 gf6 49.gf6 Rf5 50.Bb2 Rf2 51.Kd1 Rh2 52.Rd4 Kc7+= 53.Ba3 Kc6 54.Rd6? Kb5-+ 55.Rd4 Bc3 56.Rd6 Rh4 57.Rd5? Kc4 58.Rd7 Rh6 59.Kc2 Ba5?? 60.Rf7= Rh1 61.Rd7 Rf1 62.f7 Bb4?? 63.Bb4+- Kb4 64.Rd2?? Rf7= 65.Kb2 Rf4 66.Rc2 a5 67.Rd2 Rc4 68.Rd7 Ka4 69.Rd3 Rb4 70.Kc2 Rh4 71.Rb3 Rh2 72.Kb1 Rg2 73.Ka1 ½–½. Estevez,Eric (1640) – Vivian,J (1620), Provence–ch access Vitrolles, 1997. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nc3 a6 6.Nf3 Qc7 7.0-0 Nc6 8.Rb1 Nf6 9.Re1 h5 (9...Bd6 10.h3=) 10.e5 Ng4 11.Qe2 (11.Bb2!?+=) 11...Nd4= 12.Nd4 cd4 13.Na4 f6 14.Qe4 Qe5?? (better is 14...Ra7 15.Qd4 Rb7=) 15.Qg6+- Kd8 16.Re5 Ne5 17.Qe4 Ra7 18.Qd4 Rc7 19.Bf1 Bb7 (19...Nc6 20.Qb6+-) 20.c4 (20.Qb6 d6+-) 20...h4 21.h3 g5 22.f3 Bc6 (22...Be7+-) 23.Rb8 Ke7 24.Qd6 Kf7 25.Qc7 Ba4 26.d4 Ng6 27.Bd3 Nf4 (27...e5 28.Rb6 ed4 29.Ra6+-) 28.Bf4 gf4 29.Kf1 f5 30.Qa5 Bc6 31.Qa6 Rh6 (31...Rg8 32.Bf5! ef5 33.Qa5+-) 32.Qa5 (better is 32.d5!? Bd6 33.Rb6 Bc5+-) 32...Bd6 33.Rb1 Rh8 34.d5 Ra8 35.Qd2 (better is 35.de6!? de6 36.Qb6 Rc8+-) 35...ed5 36.Bf5 Rd8 (36...Ra7 37.cd5 Bb7 38.Qf2 Ba6 39.Ke1+-) 37.cd5 Ba8 38.Be4 (38.Qa5 Rf8 39.Qb6 Bd5 40.Qd6 Bc4 41.Kf2 Re8 42.Bg6 Kg7 43.Be8 Be6 44.Qe7 Kh8 45.Bg6 Bf7 46.Qf8 Bg8 47.Qf6) 38...Rc8 (38...Be5 39.Qa5 Rg8 40.a4+-) 39.Rb6 (better is 39.Qd3 Rg8+-) 39...Ke7 (39...Be5 40.Qe1 Bd4 41.Bg6 Kg8 42.Qh4 Bd5 43.Bh7 Kf7 44.Qf4 Ke7 45.Qd4+-) 40.Qb2 (better is 40.Qe1!? Kd8 41.Rd6 Bb7+-) 40...Bc5 41.Qf6 (41.Qf6 Ke8 42.Bg6) 1–0. Vogiatzis,Dimitrios (2035) – Doermann,Alexander (2100), Forchheim op–A, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6 5.Bc4 a6)

5.Nc3 Ba6 6.Ba6 Na6 7.Nf3+=.

5.Nc3 Ba6 6.Qe2 Bc4 7.Qc4 a6 8.Nf3 d6 9.0-0 Be7 10.Rb1 Nd7 11.Qa4 Ngf6 12.e5 de5 13.Ne5 0-0 14.Nc6 Qe8 15.Ne7 Qe7 16.d3 h6 17.Ba3 Rfc8 18.Rb7 Qe8 19.Ne4 Ne4 20.Qe4 Nf6 21.Qf3 Qc6 22.Qc6 Rc6 23.Rfb1 Rcc8 24.f3 Nd5 25.Kf2 Nc3 26.R1b3 Na2 27.Bb2 Nb4 28.Rc3 a5 29.Ke2 Nd5 30.Ra3 Nb4 31.Kd2 Nc6 32.Ra4 Rab8 33.Rb8 Rb8 34.Ba3 Rb1 35.Bc5 Rg1?? 36.Bg1+- 1–0. Branson,J (1685) – Marquet,D (1740), 11th Open St–Quentin en Yvelines, Elanc, 2009.

5.Nc3 Ba6 6.Qe2 Bc4 7.Qc4 Nc6 8.Nf3 Rb8 9.0-0 g5 10.Nd5?? (better is 10.a3=) 10...g4-+ 11.Qc3 gf3?? (better is 11...f6 12.Nh4 ed5 13.ed5 Nd4 14.Re1 Kf7-+) 12.Qh8+= Qg5? (better is 12...fg2 13.Kg2 ed5 14.Qg8 de4+=) 13.Qg8!+- Qg8 14.Nf6 Kd8 15.Ng8 Bg7 16.d4 Kc7 17.Nh6 (17.Bf4 e5 18.de5 Rg8+-) 17...Nd4 18.Bf4 d6 19.Bd2 Ne2 20.Kh1 Ba1 21.Ra1 fg2 22.Kg2 Rb2 23.Kf1 Nd4 24.Bc3 Rc2 25.Bd4 cd4 26.Nf7 e5 27.Ng5 h6 28.Nf3 Kc6 29.Ke1 a5 30.Nd2 d3 31.Kd1 Kb5 32.Rb1 Ka4 33.Rb3 Ra2 34.Rd3 Kb4 35.Rd6 Kc3 36.Rc6 Kd3 37.Rd6 Kc3 38.Nb1 Kc4 39.Rh6 Rf2 40.h4 Kd3 41.Rd6 Ke4 42.Nd2 Kf5 43.h5 Rh2 44.h6 e4 45.Rd5 Kg6 46.Ne4+/- Kh6 47.Ra5 Kg6 ½–½. Konsek,Peter – Reis,Gerhard (2245), Landesliga Nord, 2000. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nc3 Ba6 6.Qe2 Bc4 7.Qc4 Nc6 8.Nf3 Rb8 9.a3 d6 (9...Qf6 10.0-0 g5 11.Ra2=) 10.0-0+= Qd7 11.d4 (11.d3 Nf6+=) 11...cd4= 12.Nd4 Nd4 13.Qd4 Nf6 (13...Be7 14.a4 Bf6 15.Qd3=) 14.Rd1 (14.Be3 Be7=) 14...Be7= 15.Be3 0-0 16.Qa7 (16.Rab1 Qc6=) 16...Qa7 17.Ba7 Rb7 (17...Rbc8 18.Rd3=) 18.Be3 Rc8 19.Bd2 Nd7 (19...Rbc7 20.a4+=) 20.Rab1 (20.a4 Rbb8+=) 20...Rb1= 21.Rb1 Bf6 22.Rb7 Nc5 23.Rb4 Bc3 24.Bc3 Ne4 25.Bd4 (25.Be1 f5 26.f3 Nf6=) 25...f5 26.f3 Nc5 (26...Nd2 27.f4=) 27.Rc4 Kf7 28.f4 g6 29.Kf1 Ke7 30.Ke2 Kd7 (30...h6 31.Rc3=) 31.Bc5 dc5 32.Ra4 Rc6 (32...Rc7 33.Kd3+=) 33.Ra7+= Kd6 34.Kd3 (34.Rh7 Ra6+=) 34...e5 35.fe5 Ke5 36.Kc4 h6 (36...Rd6 37.Kc3=) 37.Rd7 (37.Kb5!? Rc8 38.Ra6+=) 37...Ra6= 38.Rd8 (38.Rd3 Ra5=) 38...Ke4 (38...Ra3 39.Rd2=) 39.Rd3+= Ra8 40.Rd6 g5 41.Re6 Kf4 42.Rh6 (42.Kc5 Ra3 43.Kb4 Ra1=) 42...Ra3 43.c3 g4 44.g3 Kf3 45.Rd6 Kg2 46.Rd2 (46.Kc5 Kh2 47.Kb4 Ra1-+) 46...Kf3 (46...Kh3 47.Kc5 Rc3 48.Kd4=) 47.Rc2+= Ke3 48.Kc5 Kd3 Exerts pressure on the isolated pawn 49.Rf2 Ke3 50.Kb4 (50.Rf1 Ra2+=) 50...Rc3= 51.Rf5 (51.Kc3?? Kf2 52.Kd2 Kg1-+) 51...Rc2 (51...Rc1 52.Re5 Kf3 53.Rf5 Ke3 54.Rf8=) 52.Rf4 (52.Rh5 Kf2=) 52...Rh2 ½–½. Soilemetzidis,Konstantinos (1915) – Colom Andres,Xavier (1880), 2nd Sunway Sitges International Chess F, 2015. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

5.Nc3 Nf6 6.e5 Ng8 7.Rb1 Nc6 8.Nf3 f6 9.Qe2 Be7 10.0-0 fe5 11.Ne5 Ne5 12.Qe5 Nf6 13.Re1 0-0 14.Nb5 (14.Nd5 Rf7 15.Ne7 Qe7+=) 14...Ne8 (14...d5 15.Be2+=) 15.Bd5 (better is 15.Ba3+=) 15...a6?? (better is 15...Bf6 16.Qh5 g6 17.Be6 de6 18.Qc5 a6-+) 16.Ba8+- ab5 17.Bf3 Bd6 18.Qe2 Nc7 19.Bb2 b4 20.Be5 (20.Qd3 Bf4 21.Be4 Qg5+-) 20...Be7 (20...Ba6 21.Qe3 Be5 22.Qe5+-) 21.c3+- d6 22.Bg3 bc3 23.dc3 e5 24.Red1 Qe8 25.Rb8 Qf7 26.Qb2 Be6 27.a4 g5 (27...Ne8 28.a5 Bg5 29.a6+-) 28.Rf8 Bf8 29.Qe2 Bc4 30.Qd2 Be7 31.Rb1 Nd5 32.Bd5 (32.a5!? h5+-) 32...Bd5 33.a5 h5 34.f3 h4 35.Bf2 h3 36.Be3 hg2 37.Qg2 (37.Bg5!? Bf3 38.Be7 Qe7+-) 37...Qf5 38.Rf1 Bc4 39.Re1 Kf7 40.Qg4 Qg4 41.fg4 d5 42.Rc1 Ba6 43.Rb1 d4 44.Rb6 Bc8 45.h3 de3 46.a6 c4?? 47.Kf1 Ba6 48.Ra6 Bc5 49.Rc6 Ba3 50.Ke2 Bc1 51.Rc4 Bd2 52.Rc6 e4 53.Rc4 Kf6 54.Re4 Bc3 55.Ke3 Bb2 56.Rb4 Bc3 57.Rb6 Ke5 58.Rb5 Kf6 59.Ke4 Kg7 60.Kf5 Bd2 61.Rb7 Kf8 62.Rb6 Kg7 63.Rg6 Kh7 64.Rg5 Ba5 65.h4 Bd8 66.h5 Ba5 67.Rg6 Bd2 68.Ke6 Be3 69.Kf7 1–0. Koltanyi,Imre (2065) – Vandor,Ferenc (2075), HUN–chT2 Erkel, 2005. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

5.d3 Bb7 6.Nf3 Be7 7.Nc3+- Nc6 8.a4 (8.Rb1 Na5+-) 8...h6 (8...Nf6!?+=) 9.0-0+- a6 (9...Nf6 10.e5 Nh7 11.Rb1+-) 10.e5 (10.Rb1 Qc7+-) 10...Qc7 11.Re1 (11.Rb1 Rb8 12.g3 h5+= (12...Ne5? 13.Ne5 Qe5 14.Bf4 Qc3 15.Bb8+-)) 11...d6 12.ed6 Bd6 13.Bb2 (better 13.Nd5!? Qd8 14.Rb1+-) 13...Nf6= 14.Nd5 Nd5 15.Bd5 0-0 16.Bb3 (16.Be4 Rfe8=) 16...Na5=+ 17.Ba2 Rad8 (17...c4 18.Be5 cd3 19.Bd6 Qd6 20.cd3 Bf3 21.Qf3=+) 18.Ne5 Bg2 (18...c4!? 19.Qd2 Nc6=+) 19.Qg4+= (19.Kg2? Qb7 20.Nc6 Nc6-+ (20...Qc6?! 21.Kh3=+)) 19...Bd5 20.Bd5 (20.Nd7 A) 20...Bh2? 21.Kf1 f6 22.Bd5 (22.Nf8?! Kf8 23.Bd5 ed5+=) 22...Rd7 23.Be6 Rdf7 24.Qg6+-; B) 20...f6 21.Bd5 ed5 (21...Bh2? 22.Kh1 Rd7 23.Be6 Rdf7 24.Bf7 Rf7 25.Re8 Kh7 26.Rae1+-) 22.Nf8 Bh2 23.Kf1 Kf8+=) 20...ed5= 21.Nd7 d4 22.Nf8 Bh2 23.Kf1 (23.Kg2 Kf8 24.Bc1 Bd6=) 23...Rf8 (23...Kf8 24.Re4 Rb8 25.Rae1=) 24.Bc1 Kh8 (24...Qc6 25.Qg2 Bc7 26.Re7+=) 25.f4+= Qb7?? (better 25...c4 26.Ra2 Rc8+-) 26.Qg2+- Bg3?! (26...Nc6 27.Kf2+-) 27.Qg3 Qh1 (27...c4 28.f5 Qc6 29.Kg1+-) 28.Kf2 (28.Kf2 Qd5 29.Re5+-) 1–0. Szentmihalyi,David (2005) – Juhasz,Bence (1645), Ifjusagi CSB, Miskolc, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Bb7 6.Nf3 Be7 7.e5 Nh6 8.0-0 Nf5 9.Re1 0-0 10.c3 Nc6 11.Bd3 Nh4 12.Nh4 Bh4 13.Qe3 f5 (13...f6 14.Qe4 f5 15.Qe3=) 14.g3 (14.Ba3!?+/-) 14...f4 15.gf4 (15.Qe4 Rf5 16.gh4 Qh4 17.Qf3 Rg5 18.Kh1-+) 15...Ne5!-/+ 16.Qe5 (16.Qe5 Bf2 Double attack; 16.fe5 Bf2 Double attack) 16...Bf2-+ 17.Kf1 Be1 (better is 17...Qh4!? 18.Bh7 Qh7-+) 18.Ke1-/+ Qh4 19.Kd1 Bc6 20.Bc4 Rf4 21.Be6 (better is 21.d4 Qg4 22.Kc2 Qg6 23.Kb2-+) 21...Kh8 (21...de6 22.Qe6 Kh8 23.Qc6 Qg4 24.Kc2-/+) 22.Bd5 Qg4 23.Kc2 Rf5 24.Bc6 (24.Qg3 Qg3 25.hg3 Rd5-+) 24...Re5 (24...dc6?! 25.Qe6+=) 25.Ba8 Qa4 26.Kd3 d5 (26...d5 27.Bd5 Rd5 28.Ke3 Re5 29.Kf3 Qe4 30.Kg3 Rg5 31.Kf2 Rg2 32.Kf1 Qe2) 0–1. Bravo Lutz,Sebastian (2185) – Strohhaeker,Raoul (2105), GER–ch Lands U20, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Bb7 6.f4 Be7 7.Nf3 Nf6 8.Nc3 0-0 9.e5 Nd5 10.Ne4?? (better is 10.Bd5 ed5 11.Rb1=) 10…Nf4-+ (10...Nf4 11.Qf2 Be4-+) 0–1. Maio,Matteo – Costantini,Roberto (2155), Cesenatico op 4th, 1999. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Nc6 6.Nf3 Rb8 7.0-0 d6 8.e5 d5 9.Bb5 Bd7 10.c4 d4 11.d3 Nge7 12.Nbd2 Ng6 13.Rb1 Be7 14.Ba3 (14.Nb3!?=) 14...a6+= 15.Bc6 Bc6 16.Ne4 0-0 17.Qd2 (17.Rb8 Qb8 18.Re1 Qc7-/+ (worse is 18...Ne5 19.Nd4 Be4 20.Qe4=)) 17...Be4 18.de4 Qc7 19.Rbe1 Rb7 20.Qd3 Rfb8 21.Nd2 Qe5 22.g3 Qc7 23.f4 e5 24.f5 Nf8 25.Nf3 Nd7 26.g4 Qd8 27.Qd2 h6 28.Bc1 Rb4 29.Qc2 Qc7 30.Ba3 R4b6 31.h4 f6 (31...Qd8 32.Qh2-+) 32.Qg2 Qc6 33.g5 (33.Qc2-+) 33...hg5 34.hg5 fg5 (34...Qa4!? 35.Bc1-+) 35.Ng5 Bg5 36.Qg5 Qf6 37.Qg3 Qf7 38.Rc1 Rh6 39.Rc2 Qh5 40.Rg2 Qh1 41.Kf2 Qh4 42.Rfg1 Qg3 43.Rg3 Rh2 44.Kf3 Ra2 45.Rg7 Kh8 46.R7g6? (better is 46.Bb4 Ra1! 47.R1g6 cb4 48.Rd7-/+) 46...Ra3-+ 47.Kg4 Nf8 48.Rh1 Nh7 49.f6 Rg8 50.Rg8 Kg8 51.f7 Kf7 52.Rh7 Ke6 53.Rh6 Kd7 54.Kf5 Rc3 55.Ke5 d3 56.Ra6= Rc4 57.Rd6 Ke7 58.Rd3 Ra4 59.Rc3 c4 60.Kd4 Ke6 ½–½. Zajarnyi,Anatolyi (2315) – Florescu,Codrut (2335), Coca Cola op, 1996. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Nc6 6.Nf3 Nge7 7.Nc3 a6 8.0-0 Ng6 9.Rb1 Be7 10.d3 0-0 11.Be3 Qc7 12.Na4 d6 13.Nb6 Ra7 14.d4 Rd8 15.c3 Na5 16.Bd3 Bb7 17.d5 ed5 (17...Rb8!?+=) 18.ed5 Bf6 19.c4 Bc8 20.Bd2 Nb7 21.h3 Bd7 22.Rb3 Re8 23.Qd1 Ne5 24.Ne5 Re5 (better is 24...Be5!? 25.Nd7 Qd7+/-) 25.Bc3 Rg5 26.Bf6 (26.Nd7!? Bc3 27.Rc3 Qd7+-) 26...gf6 27.Qf3 Qd8? (better is 27...Kg7+-) 28.Nd7 Qd7 29.Qf6 Rg7 30.Bf5 Qc7 31.Rfb1 (31.Re1!? Qb8+-) 31...a5 (31...Rg6 32.Qb2 Rg5 33.Re1+-) 32.Rb7! (32.Rb7 Rb7 33.Rb7 Rg2 34.Kg2 Qb7 35.Qh6+-) 1–0. Garcia Toledo,Pedro (2245) – Estrada Velarde,Santiago, PER Grand Prix 1st, 2004. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

5.Qe2 Nc6 6.Nf3 Qf6 7.e5 Qg6 8.d3 Nh6 9.Nbd2 Nf5 10.c3 (10.0-0 Ncd4 11.Nd4 Nd4=) 10...Qg2 11.Rg1 Qh3 12.Ne4 Nh4 (better is 12...Rb8!?+=) 13.Rg3+= Nf3 14.Qf3 Qf5 15.Qf5 ef5 16.Nd6 Bd6 17.ed6 0-0 18.Bh6 Re8 19.Kd2 g6 20.Rb1 a5? (better is 20...Na5!? 21.Bd5 Bb7 22.Rb7 Nb7 23.Bb7 Rab8=) 21.Bd5 Ra6 (21...Ba6 22.Re3 Re3 23.Be3+/- (23.Ke3?! Re8 24.Kd2 Ne5+=)) 22.Be3 Nd8 23.Bc5 Ne6 24.Ba3 Nf4 25.Bc4 (25.Bf3+/-) 25...Rc6? (better is 25...Re2 26.Kd1 Rf2=) 26.Re3+- Ne6 (26...Rf8 27.Re7 Kg7 28.Rb8+-) 27.Rb8 Kf8 28.Bb5 Ra6 (28...Ba6 29.Re8 Ke8 30.Bc6 dc6 31.Re5+-) 29.Rc8 Rc8 30.Ba6 Rb8 31.Bc4 Rb1 32.Re1 (32.Bc1 a4+-) 32...Rb6 (32...Re1 33.Ke1 f4 34.d4+-) 33.Be6 fe6 34.Re6! 1–0. Matseyko,Ekaterina (2200) – Gaponenko,Inna (2410), UKR tt (Women), 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Nc6 6.Nf3 Nf6 7.d3 Be7 8.Nc3 0-0 9.e5 Ne8 10.0-0 d6 11.Bb5 Nd4 (11...Bb7 12.ed6 Bd6 13.Rb1=) 12.Nd4+= cd4 13.Bc6 (better is 13.Qe4!? Bb7 14.Qb7 dc3 15.Bc6=) 13...Rb8+= 14.ed6 (14.Nb5!? Qb6 15.Be8 Re8 16.Rb1+=) 14...Qd6-/+ (worse is 14...dc3 15.de7 Qe7 16.Qe5+/-; 14...Nd6?! 15.Ne4-/+; 14...Bd6?! 15.Nb5+=) 15.Be8 Re8 16.Ne4 Qc7 17.g3 (17.a4!?-/+) 17...e5 18.f4 f5 19.Nf2 (better is 19.Nd2!? Bb4 20.Rb1-+) 19...Qc6 20.Nd1? (20.Rd1 Bb4 21.fe5-+) 20...Bb7 21.Kf2 (21.Rb1 Qh1 22.Kf2 Qh2 23.Ke1 Qg3 24.Nf2 Bb4 25.Rb4 ef4 26.Rd4 Bf3 27.Qe8 Re8 28.Kd2 Qg2 29.Rf4 Qf1-+) 21...Qg2 (21...ef4 22.Rg1 Bb4 23.Ne3 de3 24.Kf1-+) 22.Ke1 Bb4 (22...Bb4 23.c3 ef4-+) 0–1. Revol,Olivier – Wohlers Armas,Friederike (2235), Toulon op, 1996. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Qe2 Ne7 6.Nc3 Nbc6 7.Nf3 Ng6 ½–½. Zajarnyi,Anatolyi (2355) – Badea,Bela (2520), Bucharest TICC, 1996. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nf3 Ba6 6.Ba6 Na6 7.0-0 Rb8 8.d3 g6 (8...Nb4 9.Bf4 Rc8 10.h3=) 9.Bf4 d6 Controls e5 10.Nbd2 h6 Covers g5 (10...Qd7!?= should be examined more closely) 11.c3+/- Qd7 12.Nc4 g5 (12...Be7+/-) 13.Bg3 (better is 13.Nfe5 de5 14.Be5+-) 13...e5?? (better is 13...Rh7+= was much better) 14.Nce5! final destruction 14...Qc7 (14...de5 15.Be5 Combination) 15.Qa4 Ke7 16.Ng6!! a forceful, logical sacrifice 16...Kf6 (16...fg6 17.Qa6 Zwischenzug) 17.Nf8 (better is 17.Nh8 and White can already relax 17...Rb6 18.Nd2 Kg7+-) 17...Qb7 (17...Ke7 cannot change destiny 18.Qa6 Rb6 19.Qa4 Kf8 20.e5+-) 18.Nd7 Kg6 19.Bd6 (19.Bd6 Qb5 20.Qb3 Qb3 21.ab3+- (21.Nb8?! is a useless try 21...Qe6 22.e5 Nb8 23.Bb8 Ne7 24.Ba7 Nd5 25.Bc5 Rc8+/-)) 1–0. Diete,Guenter (1740) – Alicke,Manfred, Bad Woerishofen Seniors op, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nf3 Ba6 6.Ba6 Na6 7.0-0 Ne7 8.Nc3 Ng6 9.d4 cd4 10.Qd4 Nb4 11.Rb1 Nc6 12.Qa4 Qa5 13.Qa5 Na5 14.Nb5 Bc5? 15.Nc7+- Ke7 16.Na8 Ra8 17.Rb5 Bb6 18.Ba3 Kd8 19.Bb2 f6 20.Rh5 Nc4 21.Bc1 Nf8 22.e5 f5 23.Rh4 Rc8 24.Rd1 Ke8 25.h3 h6+= 26.g4 Ng6=+ 27.Rh5 Nce5 28.Ne5 Ne5 29.Bf4 Ng6 30.Be3 Rc2 31.gf5 Be3 32.fe3= Ne5 33.Rf1 Ra2 34.fe6 d6 35.Rh4 Ke7-/+ 36.Rb4 Ke6 37.e4 g5 38.Rb8 h5 39.Rf2 Ra1 40.Kg2 g4 41.hg4 hg4 42.Rfb2 Re1 43.Re8 Kd7 44.Ra8 Re4 45.Ra7 Ke6 46.Ra8 Re3 47.Rd2 Ke7 48.Ra6 Nd3-/+ 49.Ra4 g3 50.Rg4 Ne1 51.Kf1 g2 52.Kf2=+ Rf3 53.Ke1 Rf1-/+ 54.Ke2 g1Q 55.Rg1 Rg1 56.Kd3 Ke6 57.Rh2 Kd5 58.Rh5 Kc6 59.Rh8 Kc5 60.Rh5 d5 61.Rh3 Ra1 62.Kd2 Ra2-+ 63.Kd1 d4 64.Rg3 Kc4 65.Rh3 Rg2 66.Kc1 Re2 67.Kd1 Re4 68.Kd2 Rg4 69.Kd1 d3 70.Rh8 Kc3 71.Rc8= Rc4 72.Rc4 Kc4 73.Kd2 Kd4 74.Kd1 Ke3 75.Ke1 Kf4 76.Kd2 Ke4 77.Kd1 Kd4 78.Kd2 Kc4 79.Kd1 Kc3 ½–½. Oro,Luis – Trejo,Juan, GEBA op Buenos Aires (7), 1992.

5.Nf3 Nc6 6.Nc3 Bb7 7.Rb1 Rb8 8.0-0 Be7 9.Re1 d6 10.d3 (10.d4 Bf6+=) 10...Nf6 11.e5 (11.Bb5 0-0=) 11...de5= 12.Bb5 0-0 13.Bc6 (worse 13.Ne5 Ne5 14.Re5 Qd4=+) 13...Bc6 14.Ne5 Ba8 15.Rb8 Qb8 16.Bg5 Qb7 17.f3 h6 18.Bh4?? (18.Bd2 Nd5=) 18...Nd5?? (18...Qb4 19.Ne4 Qd4 20.Kh1 Ne4 21.Re4 Be4 22.Be7-+) 19.Nd5? (better 19.Be7 Nc3 20.Qd2 Qe7 21.Qc3=) 19...Bh4-+ 20.Re4? (better 20.g3 Qd5 21.gh4 Qa2 22.Qd2-+) 20…Qd5 (20...ed5?! 21.Rh4 Qe7 22.Qe1-+) 0-1. Grabinsky,V (2215) - Marcziter,D (2240), Titled Tuesday 1st June, 2021. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nf3 Qc7 6.Nc3 a6 7.Qe2 Nc6 8.0-0 Na5 9.Bb2 Nc4 10.Qc4 Bb7 11.d4 Nf6 12.d5 Bd6 13.Rfe1 Ng4 14.de6 (14.h3 Bh2 15.Kf1 Ne5 16.Ne5 Be5+=) 14...de6 15.Nd5 Bh2 16.Kf1 Qc6 (worse is 16...ed5 17.ed5 Kf8 18.Qg4+-) 17.Nh2 Nh2 18.Kg1 Kf8? (better is 18...Ng4=) 19.Bg7!+- (19.Kh2?! Qd6 20.Kg1 ed5=) 19...Kg7 20.Qc3 e5 21.Qe5 (21.Kh2?! Rae8+=) 21...f6 22.Qh2 (22.Qe7 Kh6 23.Re3 Bc8+-) 22...Rae8 23.Rab1 Rhg8 24.Qf4 Re6 (24...Rgf8+-) 25.Qc7?? (better is 25.Rb6 Qc8 26.Ne7 Rb6 27.Nc8 Rc8 28.Rd1+-) 25...Qc7+= 26.Nc7 Re7?? (better is 26...Re4 27.Re4 Be4 28.Na6 c4+=) 27.Rb7+- Kg6 28.Rb6 Rc7 29.e5 Rf8 30.Ra6 Kf5 31.e6 Re8 32.f3 h5 33.g3 Kg6 34.Kf2 f5 35.e7 Kg7 36.Ree6 Ree7 37.Rh6 Rcd7+/- 38.Rag6 Kf7 39.Rf6 Kg7 40.Rhg6 Kh7 41.Rh6 Kg7 42.Rd6 Rb7? 43.Rh5 Rb2 44.Rd2 Kg6 45.Rh4 Re6 46.a4 Rb1 47.Rc4 Rh1 48.Rh4 Rhe1?? 49.Rh8 Kg7 50.Rhd8 Rh1 51.R2d7 Kg6 52.Rd2 Ree1?? 53.g4+- 1–0. Monteagudo Garrido – Alepuz Guillen, Burjasot Preferente, 1996. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nf3 d5 6.ed5 ed5 7.Qe2 Be6 8.Bb5 Nd7 9.Bc6 Be7 10.Ba8 Qa8 11.d4 Ngf6 12.0-0 Ne4 13.dc5 Bf6 14.c3! Ndc5 (14...Nc3 15.Nc3 Combination; 14...Bc3 15.Nc3 Combination) 15.Ba3 0-0 16.Nd4 Nc3 17.Nc3 Bd4 18.Rac1 Rb8? (better is 18...Re8+=) 19.Nb5+- Rb5 20.Qb5 Ne4 21.Qc6 Qb8 22.Qc7 Qa8 23.g3?? (better is 23.Rc2+-) 23...Bh3+= 24.Rc2 Bb6 25.Qc6 Qb8? 26.Rfc1 h6? 27.Qd5 Nf6 28.Qd6 Qb7 29.Qc6 Qa6 30.Qa8 Kh7 31.Bb2 Ng4 32.Qe4 g6 33.Qe8 Bf2 34.Rf2 Ne5 35.Be5 Be6 36.Qh8 1–0. Andersch,Julia – Wolf,Maria, 3 Laender–Cup (Women), 1992. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nf3 d6 6.0-0 Be7 7.Bb2 Nf6 8.e5 de5 9.Ne5 Qb6 10.Nc3 0-0 (worse is 10...Qb2 11.Rb1 Qb1 12.Qb1+-) 11.Rb1 Bb7 12.Re1 Nbd7 13.Nd7 Nd7 14.Nd5 ed5 15.Bg7 Qc6 (15...Qd6 16.Bf8 Kf8 17.Rb7 dc4+/-) 16.Qg4 (16.Re7 Kg7 17.Bb5 Qf6 18.Qg4 Qg6 19.Bd7 Qg4 20.Bg4 Ba6+/-) 16...h5 (16...f5 17.Qf3 dc4 18.Bf8 Qf3 19.gf3 A) 19...Rf8? 20.Rb7 (20.Re7 Bc6+=) 20...Rf7 21.Rd7+-; B) 19...Bf8?! 20.Rb7 Nb6 21.Re5+=; C) worse is 19...Nf8 20.Rb7 (worse is 20.Re7 Bf3 21.Kf1 Ng6-/+) 20...Bf6 21.Kf1+=; D) 19...Kf8?! 20.Rb7 Ke8 21.Kg2=; E) 19...Bf6 20.Rb7 Nf8+=) 17.Qg3?? (17.Qh5 Kg7 18.Bb5 Qd6 19.Qg4 Kh6 20.Bd7 Bg5 21.Rb7 Rfb8 22.Rb8 Rb8+-) 17...Bh4?? (17...h4 18.Qf3 Rfe8-/+) 18.Qh4+/- dc4 (18...Kg7!? 19.Qg5 Qg6 20.Qg6 Kg6 21.Rb7 dc4 22.Rd7 Rfb8+=) 19.Qg5+- Kh7 20.Bf8 Nf8 21.Re7 Qd5 22.Re5 Qd7 23.Qf6 Ng6+/- 24.Rh5 Kg8 25.Rc5 Re8 26.h4+- Re6 27.Qg5 Re4? 28.h5 Rg4 29.Rb7 Rg5 30.Rd7 Rc5 31.hg6 fg6 32.Ra7 Rd5 33.Rc7 Rd2 34.Rc4 Rd1 35.Kh2 Ra1 36.a4 Kg7 37.Kg3 Kf6 38.Kg4 Ke5 39.f4 Kd5 40.Rb4 Ra2 41.g3 Rc2 42.Rb6 Ra2 43.Rg6 Ra4 44.Rb6 Ra8 45.Kf5 Ra5 46.Re6 Ra3 47.Re5 Kd6 48.g4 Rg3 49.g5 Rg2 50.Kf6 Rg4 51.Re6 Kd7 52.f5 (52.f5 Rg3 53.g6+-) 1–0. Grabinsky,Vladimir (2310) – Vunder,Yakov (2190), St Petersburg White Nights op, 2004. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

5.Nc3 Bb7

6.Rb1 Ba6? 7.Rb8!+- Rb8 (7...Rb8 8.Ba6; 7...Qb8 8.Ba6) 8.Ba6 Qa5 9.Qe2 Be7 10.Nf3 Nh6 11.g4 (11.Bb5 Qc7+-) 11...f6 (11...Ng4 12.Rg1 h5 13.h3+/-) 12.g5 (12.h3 Nf7+/-) 12...Nf7 (better is 12...fg5!? 13.h3 0-0+/-) 13.gf6+- Bf6 14.e5 Be7 15.Bc4 Rf8 16.Rg1 g6 17.Qd3 Nd8 18.Bb5 (18.h3 Nc6 19.Qe2 a6+/-) 18...Qc7 (18...Rb5 19.Nb5 (19.Qb5?! Qb5 20.Nb5 Rf3=) 19...c4 20.Qc4 Rf3 21.Bb2+/-) 19.h4 (19.Qe2 Nc6 20.Bc4 Rb4+/-) 19...Rf5 20.a4 (20.Rg4 Nf7 21.Re4 Bf8+/- (21...Ne5? 22.Ne5 Re5 23.Qd7 Qd7 24.Bd7 Kd7 25.Re5+-)) 20...Nf7+= 21.Kd1 Ne5? (better is 21...Qb7 22.Ne4 a6+=) 22.Ne5+- Re5 23.Ne4?? (better is 23.Rg6 Bf8 24.Rg5 Rg5 25.hg5+-) 23...Rd5+= (worse is 23...Bh4 24.Bb2 Rh5 25.Qc3+/-) 24.Qc3 Re5? (better is 24...Qf4 25.Ng5 Bf6+/-) 25.d3+- Rf5 (25...Re4 26.de4 Qh2 27.Qh8 Bf8 28.Bh6 Qg1 29.Ke2+-) 26.Qh8 Rf8 27.Qh7 Kd8 28.Qg6 Bh4 29.Qh6 Be7 30.Bg5 Ke8 31.Be7 Ke7 32.Rg7 Rf7 33.Qg5 (33.Qg5 Ke8 34.Rg8 Rf8 35.Qg6 Ke7 36.Qg7 Rf7 37.Qg5 Rf6 38.Qf6; 33.Qf6 Ke8 34.Qf7 Kd8 35.Qf8) 1–0. Ulusoy,Tolga (1840) – Koblenz,Christoph (1615), Nuremberg–ch op, 2005. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5 5.Nc3 Bb7)

6.Rb1 Bc6 7.Nf3 d6 (7...d5 8.ed5 ed5 9.Be2+=) 8.d4+/- cd4 9.Nd4 Qa5 10.Bd2 Qc5 11.Nc6 Nc6 12.Bb5 Nge7 13.Na4 (13.Rb3!? Qd4 14.0-0+-) 13...Qe5+= 14.0-0 Qe4 15.Rb4 (15.Bg5 Rc8+=) 15...Qf5 16.Bd3 Qd5 17.Bc4 Qd4 18.c3 Qf6 19.Rb5 (19.Rb7!?=) 19...d5-/+ 20.Bb3 Nc8 21.Re1 Be7 22.Bc2 Nd6 ½–½. Johnsen,Svein Harald – Bjornstad,Leif, Kretsmesterskap, 1998. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Bb7)

6.Rb1 Qc7 7.Nf3 Nf6 8.Nb5 Qc6 9.d3 a6 10.Nc3 d6 11.Qe2 Nbd7 (better is 11...Be7!?+=) 12.Bd5!+/- Nd5 (12...ed5 13.ed5 Double attack) 13.ed5 Qc7 14.de6 Ne5 15.Ne5 de5 16.ef7 Kf7 17.0-0 Bd6 18.Ne4 Bd5 19.c4 Bc6 20.Qg4 (20.f4 Kg8+-) 20...Rhf8 (20...g6 21.f4 Be4 22.fe5 (22.de4?! ef4 23.Qg5 Rhb8 24.Bf4 Bf4 25.Rf4 Kg8 26.Qd5 Kg7+-) 22...Bf5 23.ed6 (worse is 23.Rf5 gf5 24.Qf5 Kg8 25.ed6 Qf7 26.Qg5 Kf8+-) 23...Qd6 24.Qf3+-) 21.Qf5 (21.Qf5 Ke8 22.Qh7 Be4 23.Qe4+-) 1–0. Stoppa,Omar (2225) – Pesce,Gabriele (2000), Imperia op, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

6.Rb1 Qc7 7.Nf3 Nf6 8.d3 Be7 9.Nb5 Qc6 10.Bf4 Na6 11.0-0 0-0 12.Bd6 Bd6+= 13.Nd6 Qd6 14.Rb7 Qc6 15.Ba6 Qa6 16.Qb1 Rfd8 17.Qb3 c4= 18.Qb5 Qa2 19.e5 a6 20.Qc4 Qc4=+ 21.dc4 Ne4 22.Rd1 Nc5 23.Rc7 Rdc8 24.Rc8 Rc8 25.Nd4 Rc7 26.Nb3 Nb7 27.c5 Nc5-/+ 28.Nc5 Rc5 29.Rd7 Rd5 30.Rd5=+ ed5 31.Kf1 Kf8 32.Ke2 Ke7 33.Kd3 Kd7 34.c4 Kc6 35.cd5 Kd5 36.f4 g5 37.g3?? gf4-+ 38.gf4 a5 0–1. Brenc,Tomislav – Drlje,Josip (2090), CRO–chT Pula (1), 1999.

6.Rb1 Qc8 7.Nf3 Be7 8.0-0 (8.d3 Nf6+/-) 8...Nf6 9.e5 Ne4 10.Ne4 (10.Ne2 f6 11.d3 Ng5 12.Ng5 fg5+/-) 10...Be4 11.d3 Bd5 12.Bd5 ed5 13.d4 c4 14.Ng5 (14.Bg5 Nc6+/-) 14...0-0 15.Qh5 h6 16.Nh3 Qa6? (better is 16...Na6+=) 17.Nf4+- Bg5 18.Nd5 Bc1 (18...Qa5 19.Ne3 Be3 20.Be3+-) 19.Rfc1 Qa5 20.Ne7 (20.e6 Nc6 21.ed7 Rad8+-) 20...Kh8 21.g4 (better is 21.Qe2!? Nc6 22.Nc6 dc6 23.Qc4 Rab8+-) 21...Qd2 (21...Nc6 22.Nc6 dc6 23.g5+-) 22.Nf5 Kh7 ½–½. Kuzmin,Andrey – Maximov,Vadim, Ulan–Ude RUS, 2014. (=1.e4 c5 2.b4?? b6?? 3.Bc4 e6 4.bc5+= bc5)

6.Qe2 d6 7.Nf3 g6 8.Rb1 Bc6 9.0-0 Bg7 10.Bb2 Ne7 11.h4 0-0 12.h5 gh5 13.Ng5 h6 14.Nh3 d5 15.ed5 ed5 16.Bb5 d4 17.Ne4 Qd5 18.Bc6 Nbc6 19.Nf4 Qf5 20.Nh5 Ng6 21.d3 Rab8 22.Ba3 Nb4 23.Bb4 cb4 24.Nhg3 Qd5 25.Rb3 Rfe8 26.Qd2 Qc6 27.Nf5+= Re4 28.de4 Qe4 29.Nh6 Kf8? 30.Re1+- Qh4 31.Rh3?? Bh6 32.Qh6+/- Qh6 33.Rh6 Rc8 34.Re2 Kg7 35.Rh3 Nf4 36.Rg3 Kf8 37.Rd2 a5 38.Rg4 Ne6 39.Kf1 a4 40.Re4 Rc3 41.f4 Ra3 42.f5 Ng5 43.Red4 f6 1–0. Demirbas,Fatih – Erilli,N (1915), ch–TUR Kemer–Antalya TUR, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

6.Qe2 Be7 7.Rb1 Bc6 8.Nf3 Nf6 9.e5 Nd5 10.0-0 Nc3= 11.dc3 d5 12.ed6 Qd6 13.Rd1 Qc7+= 14.Ne5 0-0 15.Bf4 Qc8 16.Qh5 Nd7 17.Nd7 Bd7+= 18.Be5 f6 19.Bd6 Bd6 20.Rd6 Kh8 21.Bd3 f5 22.Ba6 Qc7 23.Qd1 Bc8 24.Bc8 Qc8 25.Rd7 Rd8= 26.Rbb7 Rd7 27.Rd7 h6 28.h3 Qa6 29.Qh5 Qa2=+ 30.Qf7 Rg8 31.Ra7 Qb1 32.Kh2=+ Qc2 33.Qe6 Qf2 34.Qe5 f4 35.Rc7? Qg3-+ 36.Kg1 Rd8 (36...Rd8 37.Rd7 Rd7 38.Qe8 Kh7 39.Qd7 Qc3 40.Qf5 Kg8 41.Qf4 c4-+) 0–1. De Agustin,Manuel – Martinez Semprun,Fernando, Linares op (3), 1994.

6.Nf3 Nc6 7.0-0 a6 (7...Nf6 8.Rb1 Rb8 9.d3+/-) 8.Rb1 (8.Re1 Rb8+/-) 8...Rb8 9.d4 (9.Re1 Nd4+/-) 9...cd4 10.Nd4 Nf6? (better is 10...Qc7!? 11.Nc6 Bc6 12.Rb8 Qb8+/-) 11.Bf4+- d6 12.Rb7! Rb7 13.Nc6 Qc7 14.Ba6 Rb6 15.Bb5 Rc6 (15...Rb5 16.Nb5 Qc6 17.Nd6 Bd6 18.Qd6 (worse is 18.Bd6 Ne4 19.Ba3 f5+/-) 18...Qd6 19.Bd6 Ne4 20.Rd1+-) 16.Nd5! Qb7 (16...ed5 17.Bc6) 17.c4 (17.Nf6 gf6 18.Qd3 Ke7+-) 17...Nd7+/- (17...ed5 18.Qa4 Qb8 19.Bc6 Kd8 20.ed5+-) 18.Qa4 Rc5 19.Be3 ed5 20.Bc5 dc5 21.Bc6 Qc7? (better is 21...Qc8 22.Rb1 Bd6+/-) 22.Rb1+- Bd6? (22...Ke7 23.Rb7 Qe5 24.Rd7 Kf6 25.Rd5 Qa1 26.Rd1 Qe5+-) 23.Rb7 Qb7 (23...Bh2 24.Kf1 Qb7 25.Bb7+-) 24.Bb7 Ke7 25.Bc6 (worse is 25.cd5 Rb8 26.Ba6 Rb4+-) 25...Rb8 26.g3 d4 (26...Ne5 27.Bd5 Rb2+-) 27.Bd7 Rb1 (27...Kf8 28.Qc6 Be7 29.a4+-) 28.Kg2 d3 (28...Rb8+-) 29.Bg4 (29.Bg4 Kf8 30.Qd7+-) 1–0. Martinez,Julian (2210) – Zabala,Fidel (2000), Medellin COL, 2014. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

5.Nc3 Nc6

6.Rb1 Nf6 7.Nf3 Be7 8.0-0 0-0 9.Re1 (9.e5 Ne8=) 9...d5= 10.ed5 ed5 11.Bb5 Nd4 12.Nd4 cd4 13.Ne2 Bg4 14.Bb2 Bc5 15.Qc1 (15.h3 Be2 16.Re2 Qa5+=) 15...Be2 16.Be2 Re8 17.Bf3 Qd6 18.c4 Re1 19.Qe1 Re8 20.Qc1 Qf4 21.cd5 (21.d3!? Qc1 22.Rc1 dc4 23.dc4-/+) 21...Bd6-/+ 22.Kf1 Ne4 (22...Qh2 23.g3 Qh3 24.Kg1-/+) 23.Be4 Qe4 (23...Re4?? 24.Qc8 Bf8 25.Ba3+-) 24.Kg1 h5 (24...Qd5 25.Ba3-/+) 25.g3 Rb8 26.Qd1 Qd3 27.Kg2 h4 28.Qe1? (better is 28.Qc1-/+) 28...Qf5 29.f3 h3 30.Kf2 Qc2 (30...Qd5?! 31.Ba1 Rb1 32.Qb1-+) 0–1. Hrabinska,Myroslava (2305) – Grachev,Boris (2500), Pardubice op–A, 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Nc6)

6.Nf3 Qa5 7.0-0 Ba6 8.Ba6 Qa6 9.Rb1 Be7 10.Nb5 Rc8 (10...Qa2? 11.Nc7 Kf8 12.Rb2+- (12.Na8? Qb1 13.d4 cd4-+)) 11.Qe2 (11.a3 Nf6 12.e5 Nd5+=) 11...Qa2 12.Bb2 Nf6? (12...f6 13.c4+=) 13.e5?? (better is 13.Bf6 gf6 14.Ra1 Qc2 15.Rfc1 (15.Na7?! Rd8+=) 15...Qc1 16.Rc1+-) 13...Nd5= 14.c4 Nb6 15.d3 0-0?? (better is 15...Na4 16.Qe3 a6=) 16.Ra1+- Qb3 17.Ra3 1–0. Lana Rodriguez (1990) – Labrador Postigo (2040), Autonomico–chT, 2005. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5 5.Nc3 Nc6)

6.Nf3 a6 7.0-0 Qc7 8.Re1 Bd6 9.Bb2 Nf6 10.Nd5 (better 10.Rb1!?+=) 10...ed5=+ 11.e5 0-0 12.ed6 Qd6 13.Bf6 dc4 (worse 13...Qf6 14.Bd5 Rb8 15.Be4=) 14.Bh4 Qg6 15.Ne5 Ne5 16.Re5 d6 17.Rg5 Qh6 (17...Qe4 18.Bg3 h6 19.Rh5-/+) 18.Rh5 (better 18.Qh5 Qe6 19.Rg3-/+) 18...Qg6 19.Rg5 Qe4 20.Bg3 h6 21.f3 Qd4 22.Bf2 Qf6 (22...hg5 23.Bd4 cd4 24.Qe2+/-) 23.Rg3 Rb8 24.c3 Bf5 (24...Be6 25.Be3-+) 25.h3 (25.Qa4 Rb2 26.Be3 Bd3-/+) 25...h5 (25...Rb2!? 26.Be3 Bc2 27.Qe2-+) 26.Be3 Rfe8 27.Qa4? (better 27.f4-/+) 27...Re3!-+ 28.de3 h4 (28...Qc3 29.Qd1 Qe3 30.Kh2-+) 29.Rg4 (29.e4 Qc3 (worse 29...hg3 30.Qc2 Bd7 31.Rd1-+) 30.Qd1 hg3 31.ef5 Qd4 32.Qd4 cd4-+) 29...Qc3 30.Rc4 (30.Rf1 Bg4 31.fg4 Qe3 32.Kh2-+) 30...Qa1 31.Kh2 Qe5 32.f4 Qe3 (32...Qe3 33.Rc3 Qc3 34.Qe8 Re8 35.a4 Qg3 36.Kg1 Re1) 0-1. Shirazi,K (2355) - Ghasi,A (2485), Titled Tuesday, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3)

6.Nf3 Bb7 7.d3 h6 8.Bf4 Be7 9.0-0 d6+= 10.Qd2 Nf6 11.h3 0-0 12.Ne2 d5 13.ed5 ed5 14.Bb3 Bd6 15.Ng3 Qc7 16.Bd6 Qd6 17.c3 Rfd8 18.Rfe1 Rab8 19.Bc2 d4=+ 20.Re2 dc3-/+ 21.Qc3 Nd5 22.Qd2 Nf4 23.Re4 Nb4 24.Rf4 Nc2 25.Nf5 Qd3 26.Rd1 Qd2 27.Rd2 Rd2 28.Nd2 Rd8 29.Nb3 Rc8?? 30.Ne7+- Kf8 31.Nc8 Bc8 32.Nc5 Na3 33.Ra4 Nb5 34.Ra5 Nd4 35.Ra7 Ne2 36.Kf1 Nc3 37.Ra8 Na2 38.Rc8 Ke7 39.Nd3 1–0. kingtipper (2140) – johnb (2195), net–chess.com, 2008.

6.Nf3 Rb8 7.0-0 d6 8.d4 Qa5 9.Qd3 cd4 10.Nd4 Ne5 11.Bb5 Bd7 12.Bd7 Kd7 13.Qg3 h5 14.Nb3 Qb4 15.f4 Ng4 16.Rb1 Rc8 17.Bd2 N8f6 18.Qd3 e5 19.fe5+/- Ne5 20.Qd4 Qd4= 21.Nd4 Rc4 22.Nce2 Ne4-/+ 23.Bf4 f6 24.Rb7=+ Rc7 25.Rb8 Ng6 26.Rd1 Be7-/+ 27.Rh8 Nh8 28.Rb1 Ng6 29.Rb8 Ne5 30.Nb5 Rc2-+ 31.Ned4 Ra2 32.h3 Nc5 33.Rg8 g5 34.Be3 Nc4 35.Bf2 Ne4 36.Rb8 Ra1 37.Kh2 Nf2 38.Rb7 Ke8 39.Nc7 Kf8 40.Nd5 Re1 41.Nc6 h4 42.g4 Ne3 (42...Ne3 43.Ne3 Re3-+) 0–1. Cavedal,Alejandro – Contin,D (2385), IV Memorial Pereyra Puebla (7), 2005.

6.Nf3 Rb8 7.0-0 Nf6 8.e5 Ng4 9.Re1 Be7 (9...d5 10.Bb5 Bd7 11.a4=) 10.d3 (10.h3 Nh6+=) 10...Bb7 (10...f6!?=) 11.h3+= h5 (better is 11...d5!? 12.Bb5 Nh6 13.Bh6 gh6+=) 12.hg4+- hg4 13.Nh2 Ne5? (better is 13...g3 14.fg3 d5+/-) 14.Re5+- Bd6 (14...Bf6 15.Qe1 (15.Ng4 Be5 16.Bd2 Qh4-+) 15...g3 16.fg3+-) 15.Bf4 (15.Ng4 Be5 16.Ne5 Qh4-+) 15...Qf6 (15...Be5 16.Be5 g3 17.Bg3+- (17.Bb8 gh2 18.Bh2 Qh4=)) 16.Re6! fe6 (16...de6 17.Bb5 Double attack; 16...fe6 17.Bd6 Combination) 17.Bd6 e5 (17...Rc8 18.Qe1 Bc6+-) 18.Bb8 g3 19.Nf3 (19.fg3 Qh6 20.Nf1 Qh1 21.Kf2 Rf8 22.Ke3 Qh6 23.Ke2 Bg2 24.Bd5 Rf1 25.Qf1 Qh5 26.Bf3 Bf1 A) worse is 27.Kf1 Qf3 28.Kg1 Qg3 29.Kf1 Qf4 30.Ke2 Qh2 31.Ke3 d5-+ (worse is 31...Qc2 32.Be5 d6 33.Bg7-/+); B) 27.Rf1+-) 19...Qh6 20.fg3 (better is 20.Kf1 Qh1 21.Ke2 Qg2 22.Ne4 Be4 23.de4 Qf2 24.Kd3+-) 20...Qe3 21.Kf1 Rh1 (21...Rh1 22.Ng1 Rg1) 0–1. Boulier,Rene (1995) – Durand,Bernard, Fouesnant op, 2004. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5 5.Nc3 Nc6)

6.Nf3 d6 7.0-0 Nf6 8.Re1 Be7 9.Rb1 0-0 10.Bb2 Rb8 11.e5 de5 12.Ne5 Ne5 13.Re5 Bd7 14.Qe2 Qc7 (14...Rb6 15.Re3 Qb8=) 15.h4 (better is 15.Re3!?=) 15...Rb4-/+ 16.d3? (16.Nd1!?-/+) 16...Rfb8 (better is 16...Ng4! 17.Qg4 Qe5-+) 17.Nd1 Ng4 (17...Bd6!? 18.Re3-+) 18.Qg4-/+ Rb2 19.Rc5 Bc5 20.Rb2 Rb2 21.Nb2 Qe5 22.Nd1?? (better is 22.d4 Bd4 23.Nd3-/+) 22...Qe1-+ 23.Kh2 Bd6 24.f4 Bc6 25.d4 Qd2 26.Be6? Qd4 27.Bf5 g6 28.Bd3 h5 29.Qc8+- Kg7 30.Qc6 Qf4 31.Kg1 Be5 32.Qe4 Bd4 33.Kh1 Qf6 34.g3 1–0. Osipenko,Pavel – Steiner,Thomas (1905), 11th Kesarovski–Stanchev Mem, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Nc6)

6.Nf3 d6 7.Rb1 Nf6 8.0-0 Be7 9.d4 0-0 10.dc5 dc5 11.e5 Nd7 12.Bd3 Rb8 13.Rb8+= Ndb8 14.Ne4 Nb4 15.Bg5+= N8c6 16.Be7 Qe7 17.c3 Nd3 18.Qd3 Nb8 19.Neg5 f5+= 20.ef6 gf6 21.Ne4 Ba6 22.c4 Nc6 23.Rc1 Nb4= 24.Qd2 Bb7 25.Qe3 Na2 26.Re1 Nb4 27.Nc5 Bf3 28.gf3 Kh8 29.Ne6?? Nc2-+ 30.Qh6 Rg8 (30...Rg8 31.Kf1 Ne1-+; 30...Ne1?! 31.Qf8 (31.Nf8? Nf3 32.Kg2 Ne5-+) 31...Qf8 32.Nf8=) 0–1. Boryshkevich,Roman – Andreev,Ed (2470), Tch–UKR Alushta UKR (5), 2006.

6.Nf3 d6 7.Rb1 Nf6 8.0-0 Be7 9.d4 cd4 10.Nd4 Bd7 11.Ndb5 Ne5 12.Be2 Bc6 13.Ba3 d5 14.Be7 Qe7 15.f4 (15.Qd4 a6 16.Qe5 ab5 17.ed5 ed5+/-) 15...Bb5+= 16.Bb5 Ned7 17.ed5 (better is 17.Bd7 Qd7 18.ed5+/-) 17...Qc5+= 18.Kh1 ed5?? (18...Qc3 19.de6 fe6+=) 19.Nd5 0-0 20.Nf6 Nf6 21.Bd3 Qa5 22.Bc4 Qc5 23.Qe2 Rac8 24.Bd3 Rfe8 25.Qf2 Qf2 26.Rf2 g6 27.h3 Ne4 28.Be4 Re4 29.Rb7 Ra4 30.f5 gf5 (30...Ra2!? 31.fg6 fg6+=) 31.Rf5+/- Rf8 32.c4 Ra2 (32...Rc4 33.Rg5 Double attack (33.Ra7 Deflection)) 33.c5 a5 34.Ra7 a4 35.Rf4 Rc2 36.Rfa4 Rc5 37.Rg4 Kh8 38.Rf4 Kg7 39.Kh2 Rc3 40.g4 Rb3 41.h4 Rc3 42.h5 Rb3 43.Kg2 Rc3 44.Rf5 Rb3 45.Rg5 Kf6 46.Rf5 ½–½. Hrabinska,Myroslava (2220) – Orlov,Nikolay I (2320), St Petersburg White Nights op, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Nc6)

6.Nf3 Be7 7.0-0 Na5 8.Bb5 (8.d3 Bb7+-) 8...Nf6 9.e5 (9.d3 0-0+-) 9...Nd5+= 10.Ne4 (10.Nd5 ed5 11.Rb1 Rb8+=) 10...0-0 (10...Rb8 11.c4 Nb6 12.d3+=) 11.Ba3 a6 12.Be2 Nb7 (12...Qc7 13.d4+=) 13.Re1 (13.Rb1 f5 14.ef6 Nf6 15.Nf6 Bf6+-) 13...Qa5 (13...d6 14.Rb1+=) 14.Qc1+= Nf4 (14...Nd8 15.Rb1+=) 15.Bf1 (15.d4 f5 16.ef6 Bf6+-) 15...Ng6 (15...Nd5 16.Rb1+-) 16.c3 (16.Qb2 f6 17.ef6 gf6+-) 16...Qc7 (16...f5!? 17.ef6 gf6+=) 17.d4+- Rd8 (17...d6 18.ed6 Nd6 19.Nc5+-) 18.Rb1+- d5 (18...h6 19.Bd3+-) 19.ed6! Bd6 (19...Nd6 20.Bc5 Deflection; 19...Bd6 20.Nd6 Combination) 20.Nd6 Rd6 21.dc5 (21.Qe3 Rc6 22.Bd3 cd4 23.Nd4 Rc3+-) 21...Nc5 22.Qe3 Nd7? (better 22...Rc6+-) 23.Bd6 Qd6 24.Red1 Qc7 25.Ng5 Rb8 (25...Nde5 26.Qb6 Qb6 27.Rb6+-) 26.Rb8 (26.Ne6 fe6 27.Qe6 Kf8+-) 26...Nb8 (26...Qb8 27.Ne6! Nge5 28.Nc5+-) 27.Bd3 (better 27.Qg3 Qb6+-) 27...Nc6 (27...Nf8 28.Ne4 Nc6 29.Qc5+-) 28.Bg6 hg6 (28...fg6 29.Qc5 Bd7 30.Qd6 Qd6 31.Rd6+-) 29.Qh3 Bb7 (29...e5 30.Qh7 Kf8 31.Qh8 Ke7+-) 30.Qh7 Kf8 31.Qh8 Ke7 32.Qg7 (32.Nh7!? Qb8 33.Qg7 e5+-) 32...Qf4 (32...Nd8 33.Nh7 Bd5 34.Qf8 Kd7 35.Nf6 Kc8 36.Nd5 ed5 37.Rd5+-) 33.Nf7! (33.Nf7 Qf7 34.Rd7 Kd7 35.Qf7 Ne7 36.c4+-) 1–0. Kryvoruchko (Chulivska),Vita (2235) – Majboroda,Evgenija (2030), UKR Ch women, 2004. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5 5.Nc3 Nc6)

6.Nf3 Be7 7.0-0 d6 8.Rb1 Nf6 9.d3 0-0 10.Re1 a6 11.Bf4 Nd4 (11...Na5 12.Bb3=) 12.e5+= Nd5? (better 12...Ne8+=) 13.Bd5 ed5 14.Nd5 Nf3 15.Qf3 (15.gf3?! Bg5 16.Qc1 Bf4 17.Qf4 Be6=) 15...Bb7?? (15...Ra7+-) 16.Rb7 de5 (16...Bg5 17.Bg5 Qg5 18.ed6 Rad8+-) 17.Ne7 Kh8 18.Be5 Qa5 19.Re4 (19.Re4 Qb6 20.Rb6 f6 21.Rh4 h6 22.Rh6 gh6 23.Bf6 Rf6 24.Qf6 Kh7 25.Qh6) 1-0. marekt - shm19cs, ChessWorld.net, 2021. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nc3 e6 5.Bc4)

6.Nf3 Be7 7.0-0 Nf6 8.Re1 d6 9.Rb1 0-0 10.Bb2 Rb8= 11.d4 cd4 12.Nd4 Bd7 13.Ndb5 Qa5 14.Ba1 a6 15.Nd4 Rb1 16.Nb1 Nd4 17.Bd4 Rc8 18.Bb3 e5 19.Bb2 Be6 20.Re3 Qb6 21.h3 a5 22.Nc3 g6 23.Ba3 Nh5 24.Nd5+= Bd5 25.Qd5 Rf8 26.g3 Ng7 27.h4 Ne6 28.Rf3 a4 29.Ba4 Nd4 30.Rf7?? Rf7-+ 31.Be8 Ne2 32.Kh1 Qf2 33.Bf7 Kg7 (33...Kg7 34.Qe5 de5 35.Be7 Ng3) 0–1. Matseyko,K (2250) – Doluhanova,E (2205), ch–UKR Women (5), 2004.

6.Nf3 Nge7 7.0-0 Ng6 8.d4 cd4 9.Nd4 Na5 10.Be2 Be7 11.Rb1 0-0 12.Be3 Ne5 13.Nb3 Nec4 14.Bf4 Na3 15.Nb5 Nb5 16.Bb5 a6 17.Be2 Nb7 18.c4 d6 19.e5 Qc7 20.Qd4 Rd8 21.Qe3 de5 22.Be5 Bd6 23.Bd6 Nd6 24.Rfd1 Bb7 25.Nc5 Bc6 26.Qg3 Qe7 27.Bd3 e5 28.Re1 e4 29.Nb3 Nf5 30.Qf4 Rd3 31.Qf5 Rad8 32.Qc5 Qf6 33.Rbc1 Ba8 34.h3 h6 35.Rc2 Qg6 36.Re3 Rd1 37.Kh2 f5 38.Qe5 Qf7 39.Rg3 g5 40.Rc1 R1d7 41.Nc5 Re7 42.Qb2 Qg6 43.Qa3 f4 44.Rb3 e3 45.f3 g4 46.hg4 Qg5 47.Rd3 Rde8 48.Qb2?? Qh4-+ 49.Kg1 e2 (49...e2 50.Ne4 Be4 51.fe4 Re4-+) 0–1. Shirazi,K (2385) – Spraggett,K (2580), 22nd Open Cappelle la Grande FRA (1), 2006.

6.Nf3 Nge7 7.Qe2+=.

6.Nf3 Nf6 7.d3 Na5 (7...d5 8.Bb5 Bd7 9.ed5 ed5 10.0-0=) 8.Bb3 (8.Bb5 a6 9.Ba4 Be7+=) 8...Nb3 (8...Bb7 9.0-0+=) 9.ab3 Bb7 10.0-0 (10.Bg5 d6+=) 10...Be7 11.h3 (11.e5 Nd5 12.Nd5 Bd5=) 11...0-0 (11...d5 12.ed5 Nd5 13.Ne4=) 12.Ne2 (12.Bg5 Ne4 13.Be7 Nc3 14.Bd8 Nd1+=) 12...Qc7 (12...d5 13.e5 Nd7 14.d4=) 13.Bf4 d6 (13...Qb6 14.Re1=) 14.Ng3 (14.Nc3 Nh5 15.Bg5 Bg5 16.Ng5 Nf6=) 14...Qd7 (14...Rfd8 15.Qe2=) 15.Qd2 Rfd8 16.Ra5 Qc6 17.Rfa1 a6 (17...Qb6 18.Bg5=) 18.b4 (18.Bg5 Rd7+=) 18...Nd7 (18...cb4 19.Qb4 Rdc8 20.c4=) 19.Bg5 (19.bc5 Nc5 20.Bg5 f6=) 19...f6 (19...Bg5 20.Ng5 cb4 21.Qb4=) 20.Be3+= cb4 (better 20...Qc8+=) 21.Nh5?? (better 21.Nd4 Qc3 22.Qc3 bc3 23.Ne6+-) 21...Qc3=+ 22.Qd1 (22.Rb1 Rdb8 23.Rb4 Qd2 24.Nd2 d5=) 22...Rdc8 23.Nd4 e5 (23...g6 24.Qg4 f5 25.ef5 A) 25...ef5? 26.Nf5 Bf8 27.Nd6 Bd6 28.Qe6 (28.Qd7?! gh5 29.Qd6 Rd8+-) 28...Kh8 29.Qd6+- (29.Qd7?! Be5 30.Qb7 gh5+-); B) 25...Ne5=) 24.Qg4+= g6?? (24...Bf8 25.Nf5 g6 26.Nd6 Bd6 27.Qd7 gh5 28.Qd6 Rf8+-) 25.Nf5 (better 25.Qd7 Qc7 26.Qe6 Kh8+-) 25...Kf7?? (better 25...Bf8 26.Nd6! Bd6 27.Qd7 gh5 28.Qd6 Rf8+-) 26.Nh6+- Ke8 27.Ng7 (better 27.Qe6 Qc6 28.Ng7 Kd8 29.Nf7 Kc7 30.Qe7+-) 27...Kd8+- 28.Qe6 Bf8 29.Qe8 (29.Qg8!? Kc7 30.Ne6 Kc6 31.Qh7 Bh6 32.Qh6+-) 29...Kc7+= 30.Ne6 Kc6 31.Ra6?? (better 31.Qf7 Bh6 32.Bh6+-) 31...Ba6?? (better 31...Ra6 32.Ra6 Ba6 33.Nd8 Rd8 34.Qd8 Bh6 35.Qa8 Bb7 36.Qa4 Kc7 37.Bh6 Nc5 38.Qa5 Kd7-+) 32.Ra6!+- Kb7 (32...Ra6 33.Qc8 Deflection (33.Qc8 Remove defender; 33.Qc8 Overloading; 33.Nf8 Zwischenzug)) 33.Qd7 Ka6 34.Qa4 Kb7 35.Qb5 1–0. lves,Gabriel Felipe (1605) – De Castro,Patrick Mattos (1825), FENAJ – Championship Brasileiro Infanto, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Nc6)

6.Nf3 g5 7.Bb2 (7.h3 Nh6+=) 7...Bg7 (7...g4 8.Nb1 f6 9.Nh4=) 8.h3 (8.0-0 g4 9.Ne1 Qg5+=) 8...Rb8 Black threatens to win material: Rb8xb2 9.Rb1 Kf8 (9...Rb4 10.Bb5 Nf6 11.a3 Rb2 12.Rb2+/-) 10.Qc1 (10.Qe2 h5 11.Qe3 g4 12.hg4 hg4 13.Rh8 Bh8 14.Qc5 Qe7 15.Qe7 Nge7+=) 10...Rb4 (10...h5 11.Nd1 Bb2 12.Rb2+= (worse is 12.Nb2 Qf6+=)) 11.Bd3 d6 Prevents intrusion on e5 12.a3 White threatens to win material: a3xb4 12...Rb8 13.Ne2 e5 14.Bc4 h5 15.Bc3 (better is 15.h4!? is worth looking at 15...gh4 16.Nh4+=) 15...Rb1+= 16.Qb1 f5 (better is 16...g4 would keep Black alive 17.Nfg1 Nf6=) 17.Qb5 Bd7 18.Qb7 Bf6 19.ef5 Nge7 20.Be6 (20.Ng3!?+/-) 20...Be6+= 21.fe6 d5 22.d3 Kg7 23.Ng3 Kg6 24.Bd2 Qd6 25.Qb1 h4+= 26.Nf1 Qe6 27.Ne3 e4 28.de4 de4 29.Nh2 Rb8 30.Qd1 Rd8 31.Qg4 Qe5 32.Nhf1 Qd4 33.Qe6 Rd6 34.Qa2 Ne5 35.Bc1 c4 36.Nd2 Rc6 37.0-0 c3 38.Nb3 Qa4 39.Rd1 Nf7 40.Ng4 Bg7? 41.Rd7+- Bf6 42.Nf6 Kf6 43.Nd4?? Rb6= 44.Re7 Ke7 45.Be3 Qa6 46.Nf5+/- Kf6 47.Qd5?? Rb1-/+ 48.Kh2 Qe6 49.Bd4 Ne5 1–0. Lujan,Maria Carolina (2120) – Schuster,Carlos (2255), ARG–ch sf Ezeiza, 2000. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6 5.Nc3 Nc6)

6.Nf3 g6 7.0-0 Bg7 8.Rb1 d6 9.Ne2 Nf6 10.Bb5 Bd7 11.Ng3 (11.d3 Rc8=) 11...0-0 (11...Rb8 12.Ba3+=) 12.e5 (12.Bb2!?=) 12...Ne5+= 13.Ne5 de5 14.Bb2?? (better is 14.Bc4+= would bring relief) 14...Bb5-+ 15.Re1 Bc6 16.Be5 Qd5 17.f3 Rfd8 18.d3 (18.Nf1 cannot change destiny 18...Rac8-+) 18...Ne8 (18...Ng4 keeps an even firmer grip 19.c4 Qe5 20.Re5 Ne5 21.Qc2-+) 19.Bg7 Ng7 20.Ne4 Qd4 21.Kh1 Be4 22.Re4 Qd6 23.Qe2 Rab8 24.Re1 Rb2 25.a4 Rdb8 26.g4 Rb1 27.Kg2 Re1 28.Qe1 Rb4 29.Re5 h6 30.a5 Qc6 31.Qe3 Rg4 32.Kh3 Rd4 33.c3 Rd5 34.Re4 Rh5 35.Kg2 Qd5 36.Qe2 Qg5 37.Rg4 Qe5 38.Qe5 Re5 39.d4 cd4 40.Rd4 Nf5 41.Rd8 Kg7 42.a6 Ne7 43.Rd7 Nc6 44.Kf2 Ra5 45.Ke3 Ra6 46.f4 Kf6 47.Rc7 Ne7 48.c4 Ra3 49.Kd4 a5 50.Kc5 Rh3 51.Kb6 a4 52.Ka5 a3 53.Kb5 Rh2 54.Ra7 a2 55.Ra3 Nf5 56.c5 Ne7 57.Ra7 Nd5 58.c6 h5 59.Kc5 h4 60.Kd6 h3 61.Kd7 Rc2 62.Ke8 Kf5 63.Rf7 Ke4 64.Ra7 h2 (64...h2 65.Rh7 a1Q 66.f5 Rc6 67.Rh4 Kf5 68.Rf4 Kf4 69.Kf7 Rc7 70.Kg6 Qb1 71.Kh6 h1Q) 0–1. Boulier,Rene (2065) – De Baralle,Michel, Saint Affrique op, 2001. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5 5.Nc3 Nc6)

6.Nf3 g6 7.Rb1 Bg7 8.0-0 Nge7 9.Nb5 d6 10.c3 0-0 11.Na3 d5 12.ed5 ed5 13.Bd3 Be6 14.Ng5 Bf5=+ 15.Bf5 Nf5 16.Nf3 Qd7 17.Nc2 Rab8 18.Rb8 Rb8 19.Ba3 Bf8 20.Re1 Qc7 21.Ne3 Ne3=+ 22.fe3 Qa5 23.Qc1 Re8 24.Rf1 Qa6 25.d4 Bh6-/+ 26.Re1 Qd3 27.Qb2? Be3 28.Kh1 Rb8 29.Qa1 cd4 30.cd4?? Qa3-+ 0–1. Boulier,R (1990) – Laine,Pat (2060), 6th Open Saint Chely d'Aubrac FRA (2), 2006.

6.Nf3 g6 7.Rb1 Bg7 8.Bb2 a6 9.Na4 Nf6 10.Bf6 Bf6+= 11.Nc5 d6 12.Nb3 d5 13.ed5 ed5 14.Be2 0-0 15.0-0 Bg7 16.d4 Bf5 17.Bd3 Bg4 18.c3 Qc8 19.Nc5 Rd8 20.h3 Be6 21.Ng5 Re8 22.Qf3 Bf8?? 23.Nce6+- fe6 24.Qf7 (24.Qf7 Kh8 25.Qh7) 1–0. Boulier,R (1990) – Trzesniower,Jacques, 6th Open Saint Chely d'Aubrac FRA (4), 2006.

6.Nf3 g6 7.e5 Bg7 8.Qe2 f6 9.ef6 Nf6= 10.0-0 0-0 11.Rb1 Nd4 12.Nd4 cd4 13.Nb5 d5 14.Bd3 Ne8 15.c3 e5 16.cd4 e4 17.Bc2 Qh4 18.Bb3+/- Rf5 19.g3 Qe7? 20.d3+- Kh8 21.Ba3 Qe6 22.de4 Rh5? 23.e5 Ba6 24.Bc2 Qh3 25.f4 Nc7 26.Bd3 Ne6 27.Bc5 Rc8 28.Rbc1 Rc5 29.Rc5 Nd4 30.Qg2 Qg2 31.Kg2 Bf8 32.Nd4 Bc5 33.Ba6 Bd4 34.Rd1 Bb6 35.Rd5 Rf5 36.Rd7 Rf8 37.Kf3 Rd8 38.Rd8 Bd8 39.g4 Kg7 40.f5 gf5 41.gf5 Ba5 42.Ke4 Kf7 43.Bc4 (43.Bc4 Kf8 44.f6+-) 1–0. Grabinsky,V (2310) – Spirou,P (2130), 32nd Aegean Open, Aghios Kirykos GRE, 2009.

6.Nf3 g6 7.e5 Bg7 8.Qe2 f6 9.ef6 Nf6= 10.Rb1 0-0 11.0-0 Nh5 12.Qe3 Rf4 (12...Bd4 A) 13.Nd4? cd4 14.Qe4 dc3 15.Be6 de6 16.Qc6 cd2 17.Bd2 Qd5 (17...Qd2?! 18.Qa8 a6 19.Qc6+=) 18.Qd5 ed5-+; B) 13.Qe2=) 13.Qc5+= Bf8 (13...Rf3 14.gf3 Nd4 15.Ne2+=) 14.Be6 Kh8 15.Qd5 (better is 15.Qb5!? Rb8 16.Qc6 Rb1 17.Qd5=) 15...Nf6+= 16.Qg5 Rf3 17.gf3 de6 18.Bb2 Nd4 19.Kg2 Bg7 (19...Nc2? 20.Ne4 Nd4 21.Qf6 (worse is 21.Nf6 Be7-/+) 21...Qf6 22.Nf6+-) 20.Ne4 Ba6 (20...e5 21.Bd4 ed4 22.Rfe1+=) 21.Rfe1= Rc8 22.Nc5 (better is 22.Bd4!? Qd4 23.Qe3+=) 22...h6-/+ (22...Nc2 23.Re6 (23.Na6?! Ne1 24.Re1 Nh5 25.Bg7 Kg7 26.Qe5 Qf6=) 23...Qd5 24.Bf6 Qg5 25.Bg5+-) 23.Qe5 Nh5 (23...Nc2?! A) worse is 24.Na6 Nh5 25.Qb5 Ne1 26.Re1 Qd2 27.Bg7 Ng7-/+ (worse is 27...Kg7 28.Qb7 Kf6 29.Re6 Ke6 30.Qc8 Kf7 31.Qc4 Kf6 32.Nc5 Nf4 33.Kg3 Ne2 34.Kh3 Nf4 35.Kg4 h5 36.Kg3 Ne2 37.Kg2 Nf4 38.Kg3 Ne2 39.Kg2 Nf4 40.Kg3=); B) 24.Rec1 Nh5 25.Ne6 Be5 26.Be5 Qf6 27.Bf6 Nf6 28.d4=) 24.Bd4 Be5 25.Be5 Kg8 26.Na6 Qd2 27.Nc7 Qg5 28.Kf1 Nf4 29.Bf4 Qf4 30.Ne6 Qc4 31.Kg2-/+ Re8 32.Re4 Qc2 33.Rb7 Qa2 34.Rg7 Kh8 35.Rg6 Rg8 36.Reg4 Rg6 37.Rg6 Kh7 38.Rg7 Kh8 39.Rg6 Kh7 40.Rg7 Kh8 ½–½. Zygmanta,Eugenijus (1865) – Setkauskas,V (2190), Vilnius LTU,Team Ch 1st League, 2014. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Bc4 e6 5.Nc3 Nc6)

5.Nf3 Bb7

6.Nc3 Nc6 7.0-0 d6 8.Rb1 Rb8 9.d4 cd4 10.Nd4 Nge7 11.Bg5 Qa5 (better is 11...Qd7!?+/-) 12.Be7+- Nd4 13.Qd4 Be7 14.Qg7 Rf8 15.Rb3 Qc7 16.Rfb1 Qc4 17.Rb7 Rb7 (17...Rc8 18.R1b3 a5 A) worse is 19.Qh7 a4 20.Na4 Qe2+= (20...Qa4? 21.Re7 Ke7 22.Rb7 Ke8 23.Qh4+-); B) 19.Rb8+-) 18.Rb7 Qc8 19.Ra7 Qb8 20.Qd4 Rg8 (20...f6+-) 21.Qa4 Kf8 22.Ra8 (22.Ra8 Kg7 23.Rb8 Rb8 24.Qd4 Kg8 25.a4+-) 1–0. Hrabinska,Myroslava (2220) – Kovtonjuk,Natalia (2070), UKR–ch U20 Girls, 2003. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

6.Nc3 Nc6 7.0-0 Nge7 8.Rb1 Rb8 9.d4 cd4 10.Nd4 Nd4 11.Bf4 d6 (11...Ndc6 12.Nb5 Nf5 13.Nc7 Ke7 14.ef5 Qc8 15.fe6 fe6 16.Bd6 Kd8 17.Ne6 de6 18.Bb8 Ke7 19.Bd6 Ke8 20.Be6 Qe6+-) 12.Qd4+/- Nc6 13.Bb5 ½-½. Schlindwein,R (2390) - Faerber,David (2295), 91st BSK, 2019. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

6.Nc3 Nf6 7.d3 d5 8.Bb5 (8.Rb1!? Bc6 9.ed5 ed5 10.Bb5+-) 8...Bc6+= 9.0-0 (9.Rb1 a6 10.Bc6 Nc6+=) 9...Be7 (9...d4 10.Bc6 Nc6 11.Nb5=) 10.Bf4 (10.Rb1 0-0+=) 10...0-0 (10...a6 11.Bc6 Nc6 12.h3+=) 11.Ne5 (11.Rb1 a6 12.Bc6 Nc6+=) 11...Bb5= 12.Nb5 a6 13.Nc3 Bd6 14.ed5 (14.Bg3 Qc7 15.f4 d4=) 14...Nd5 15.Nd5 ed5 16.Qf3 (16.Qg4 Qc7 17.Rfe1 Nc6 18.Nc6 Qc6=) 16...Be5 17.Be5 Nc6 18.Qg3 Ne5 19.Qe5 Re8 ½–½. Molina,Pablo Sebastian (2205) – Pierrot,Facundo (2390), 16A Abierto de INVIERNO de VILLA BALLES, 2016. (=1.e4 c5 2.b4 b6 3.Bc4 e6 4.bc5 bc5)

6.d3 d6 7.0-0+= Nc6 8.Bb2 Nf6 9.Nbd2 Be7 10.a3 0-0 11.Qe1 Qc7 12.Ng5 h6 13.Nh3 Nd4 14.f4?? Nc2-+ 15.Qg3 Ne8?? 16.Rac1+= Nd4 17.Bd4 cd4 18.Be6 Qa5 19.Nc4 Qh5 20.Bg4+/- Qb5 21.Rb1 Qa6 22.Bd7 Nc7 23.Nf2 Rad8 24.Bh3 Kh8 25.Ng4 Be4?? 26.de4+- Qc4 27.Rfc1 Qa2 28.Qd3?? Ne6-/+ 29.g3 Rc8 30.Ra1 Qb2 31.Qd1 Rc1-/+ 32.Qc1 Qc1 33.Rc1 Rb8 34.Nf2 Nc5 35.Kf1 Rb3 36.a4 d3 37.Bg2 Na4 38.Nd1 Bf6 0–1. Aufmwasser,Guenter (1775) – Schett,Franz, Seefeld op 9th (5), 1998.

6.d3 Nf6 7.0-0 Be7 8.Nc3 d6 (8...d5 9.ed5 ed5 10.Rb1=) 9.Rb1+= Qc8 10.e5 de5 11.Bb5 Nbd7 12.Ne5 0-0 13.Nc4 Qc7 14.Bg5 Rad8 15.Bh4 Bd6 (15...Qf4 16.Bg3 Qd4 17.Qe1+=) 16.Nd6 Qd6 17.Bg3 (17.Bd7 Rd7 18.Bf6 gf6 19.Qg4 Kh8+=) 17...e5 18.Re1 Rfe8 19.Na4 (19.Qe2 Rb8=) 19...Qd5 20.f3 Bc6 (20...Qa2 21.c4 e4 22.Bd7 Rd7 23.Ra1 Rd3 24.Ra2 Rd1 25.Rd1+-) 21.Bf2 Bb5 22.Rb5 The pressure on the isolated pawn grows 22...Rb8 (22...Qa2 23.Nc5 a6 24.Rb3=+) 23.c4 Qc6 (23...Qd6 24.Ra5=) 24.Nc5 Rb5 25.Nd7 (25.cb5!? Qb5 26.Qb1=) 25...Ra5=+ (worse 25...Qd7 26.cb5 Qb5 27.d4=) 26.Nf6 gf6 (26...Qf6 27.d4-/+) 27.Qe2 Rd8 28.Bh4 (28.f4 ef4 29.d4 Rg5=) 28...Ra3=+ Exerts pressure on the backward pawn 29.Qe3 (better 29.f4!? ef4 30.Qg4 Kf8 31.Qf4 Ra2 32.Re4 Ra1 33.Be1-/+) 29...Kg7 30.Rd1 (30.f4 Rdd3 31.Qe2 Rd4-+) 30...Ra2 31.h3 Rd4 32.Bf2 Qd7 (32...Qa4 33.Rd2-+) 33.c5? (better 33.f4 Rc4 34.fe5=+) 33...Rc2 34.h4 (34.f4 Rf4 35.Rd2 Rd2 36.Qd2 Rc4-+) 34...Rc3 (worse 34...Rc5 35.Qe1-+) 35.Rc1 Rc1 36.Qc1 Rd3 37.Kh2 Qc7 (37...Qa4!? 38.h5-+) 38.Qc4 Rd8 39.Qg4 Kh8 40.Qf5 Qc6 41.h5 Qe6 42.Qe4 f5 43.Qe2 (43.Qb7 a6-+) 43...Re8 (43...f4 44.Kg1-+) 44.Qb5 (44.f4 f6-+) 44...a6 (44...f4 45.Qa4-+) 45.Qb7 Rc8 46.f4 ef4 (better 46...e4 47.Bd4 Kg8 48.Be3-+) 47.c6? (47.Qf3-+) 47...Rc6 48.Bd4 Kg8 49.Qb8 Rc8 50.Qf4 f6 51.Qh4 (51.Qg3 Kf7 52.h6 Rg8 53.Qc7 Kg6 54.Qg3 Kh6 55.Be3 f4 56.Qf4 Kg7-+) 51...Qd6 (51...Qd6 52.Qg3 Qg3 53.Kg3 Kf7-+) 0–1. Baran,Peter (2060) – Rajnys,Vladimir (2055), CZE–ChT2B, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Bc4 e6)

4.Nf3 Bb7

5.Nc3 Nc6 6.Rb1 Rb8 7.Bc4 g6 8.0-0 Bg7 9.Re1 Nf6 10.e5 Ng4 11.Bf7 Kf7 12.Ng5 Kg8 13.Qg4 Ne5 14.Re5 Be5= 15.Rb7 Rb7 16.Qf3 Bf6 17.Qb7 Bg5 18.Ne4 Bf6 19.h4 Qb6 20.Nf6= ef6 21.Qc8 Kg7 22.Qd7 Kh6 23.d4 g5 24.Qf7 Qd6? 25.hg5+- fg5 26.f4 (26.f4 Qd4 27.Kh2+-) 1–0. Pinto Paiva,Jose – Da Nobrega,Adaucto, BRA–ch Brasilia, 1964.

5.Nc3 Nc6 6.Bb2 Nf6 7.e5 Ng4 8.Ne4 d6 9.ed6 ed6 10.Qe2 Kd7 11.Rb1 Nb4 12.Nfg5 f5 (12...Nc2? 13.Kd1 f5 14.Kc2+-) 13.Nc5?? (better is 13.Nf7 Qh4 14.Nh8 Nc2 15.Kd1 Be4 16.d3 Nf2 17.Kc2-+) 13...dc5-/+ 14.Qe6 Kc7 15.Qf5 Nc2! 16.Qc2? (better is 16.Ke2!? Bc8 17.Qe4 Qg5 18.Qa8-+) 16...Qg5 17.Qb3 (17.Bd4 Re8 18.Be3 Bg2 19.Qa4-+) 17...Bd6 (17...Qf5 18.Bd4 Bd5 19.Qb5 cd4 20.f3 Qe6 21.Be2-+) 18.Bg7?? (better is 18.Qb7! Kb7 19.Bf6 Kc7 20.Bg5=) 18...Rhe8-+ 19.Be2 Ba6 20.d3 Nf2 (better is 20...Rab8 21.Qc2 Rb1 22.Qb1 Qg7-+) 21.Rf1 (21.Qf7 Re7 22.Qf2-+) 21...Nd3 (21...Re2 22.Ke2 Re8 23.Qe6 Re6 24.Be5 Re5 25.Kf2 Qe3) 22.Kd1-+ Re2 23.Rf7 Be7 24.Ke2 Nc1 (24...Nc1 25.Kf2 Nb3 26.ab3 Rg8-+) 0–1. Waroff,Chris – Haraldsson,Oskar, Berkeley Peoples op, 1999. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 Nc6 6.Bb5 Nd4 7.Bc4 e6 8.d3 Nf3 9.Qf3 f5 10.Qe2 fe4 11.de4 Qf6 12.Bd2 Ne7 13.Rb1 Bc6 14.Nb5 Kf7 15.Bc3 Qg6 16.f3 d5 17.ed5 ed5 18.Bd3 Nf5 19.0-0 a6 20.Nc7+/- Ra7? 21.Be5?? c4+= 22.Bc4 Rc7 23.Bc7 dc4 24.Qc4 Qe6 25.Qe6 Ke6 26.Bb6 Be7 27.Rfe1 Kf7 28.Re5 g6 29.Bf2 Rc8 30.Rbe1 Bf6 31.Rc5 Be7 32.Rc4 Bd6 33.a4 Ne7 34.Rd1 Ke6 35.Re1 Kf7 36.Rd1 Be5 37.Re1 Bc7 38.Kh1 Bd6 39.Bg3 Bb8 40.Bb8 Rb8 41.h3 Bd5 42.Rc7 Be6 43.Ra7 Rb6 44.a5 Rc6 45.Rb1 Bc4 46.Rbb7 Re6 47.Rc7 Re1 48.Kh2 Bf1 49.Kg1 Bb5 50.Kf2 Re2 51.Kg3 Kf6 52.c4 Nf5 53.Kh2 Be8 54.Ra6 Kg5 55.Rh7 Ne3 56.Kh1?? Kf4-+ 57.Rh4 Kg3 58.Rg4 Ng4 (58...Ng4 59.Re6 Re6 60.hg4 Re1) 0–1. Strumilo,Slawomir – Joachimiak,Roman (2100), open tournament Poland, 2007.

5.Nc3 Nc6 6.Bc4 e6 7.0-0 Na5 8.Bb5 Nf6 9.d3 Be7 10.Rb1 0-0 11.Bf4 d5 12.ed5 ed5 13.Re1 d4 14.Ne4 Bd5 15.Qd2 (15.Ng3 a6 16.Ba4 Ba2+-) 15...Nc6 (15...Nh5 16.Be5 f6 17.Bg3+=) 16.c4 (16.h3 a6 17.Ba4 Rc8+=) 16...dc3+= 17.Nc3 (17.Qc3!? Nd4 18.Bc4+=) 17...Bf3= 18.gf3 Nd4 19.Kg2 Nh5 20.Bc4 (20.Bg3 Bg5 21.f4 Bf6=) 20...Bd6 (20...Nf4!? 21.Qf4 Bg5=+) 21.Bg5= Qd7 22.Ne4 Kh8 (22...Bc7 23.Ng3 Qc6 24.Re4=+ (24.Nh5?? Qf3 25.Kg1 Qh3-+)) 23.Nd6 Qd6 24.Be7 Qc6 Attacks the isolani on f3 25.Re4 (25.Bf8? Nf3 26.Qe3 Ne1 27.Kf1 A) 27...Rf8?! 28.Re1 Nf4 29.Qe4-+ (29.Qf4?? Qh1 30.Ke2 Re8 31.Qe3 Re3 32.fe3 Qh2 33.Kd1 Qg2-+); B) 27...Nc2 28.Bg7 Ng7-+) 25...Nf3 26.Kf3? (better 26.Qe3 f5 27.Qf3 (27.Bf8? fe4 28.Bc5 Nd2-+) 27...Qg6 28.Kf1 fe4 29.Qe4=+) 26...f5-+ 27.Bf8 Rf8 28.Rg1?? (better 28.Ke2 fe4 29.Kd1-+) 28...fe4 29.Ke2 Nf4 (29...ed3 30.Kf1 Qf6 31.Bd3-+) 30.Kd1 (30.Kf1 ed3 31.Bd3 Qf6-+) 30...ed3 31.Re1 (31.Rg3 Qf6 32.Bb3-+) 31...Qa4 32.Bb3 Qd4 (32...Qd4 33.Qe3 d2 34.Qd2 Nd3-+) 0–1. Alsulaymi,Abdullah M (1830) – Perdomo,C (2300), World Rapid, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 d6 6.Bc4 (6.Rb1 Qd7+-) 6...Nf6 (6...Nd7 7.Rb1 Rb8 8.d4+/-) 7.0-0 (7.Rb1 Bc6+-) 7...Nbd7+/- 8.Re1 e6 9.Rb1 Rb8 10.d3 (10.d4!?+/-) 10...Be7+= 11.Bf4 0-0 12.e5 (12.h3!?+=) 12...Bf3= 13.Qf3 (worse is 13.gf3 Rb1 14.Nb1 Nh5 15.ed6 Nf4 16.de7 Qe7-+) 13...de5 14.Bg3 (14.Bd2 Nb6 15.Bb5 Nfd5+=) 14...Qc7 (14...Qa5 15.Ne4+=) 15.h3 (15.Rb3 Rb4+=) 15...h6 (15...Qa5 16.Nb5+=) 16.Rb3 Rb4 17.Ra3 (17.Qe2 Rfb8+=) 17...Rfb8 18.Kh2 (18.Ra6 Qb7+=) 18...Qb7 (18...Rb2 19.Qd1+=) 19.Qb7+= R8b7 20.Nb5? (20.f3+=) 20...Nd5?? (better is 20...R4b5 21.Bb5 Rb5 22.Ra7 Bd6-+) 21.Na7= Bf8 22.Nc6+/- R4b6 23.Ne5 Nb4 24.Nd7 Rd7 25.Re2 Nc6 26.c3 Ne7 27.Ra8 Nd5 28.Rc2 Rbb7 29.Bd5 Rd5 30.d4! g5 31.dc5+- e5 32.a4 Rc5 33.a5 f5 34.a6 Rbc7 35.Ra2 f4 36.a7 fg3 37.Kg3 Ra7 38.R2a7 Rc3 39.f3 e4 40.Re7 ef3 41.gf3 Rc4? 42.Re4 Rc6 43.h4 Rf6?? 44.hg5 hg5 45.Ree8 Kg7 46.Rf8! Rf8 47.Rf8 Kf8 48.Kg4 1–0. Kostin,Alexey (2335) – Provkin,Vladimir (2250), Voronezh RUS, Winter Open, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 e6 6.Rb1 Bc6 7.Ne5 Nf6 8.d4 (8.Bb2!?+=) 8...Be4 9.Ne4 (9.Nf7 Kf7 10.Ne4 cd4 11.Qd4 Qa5 12.Kd1 Qa2=) 9...Ne4=+ 10.Bd3 Qa5 11.Kf1 Nf6 (11...Nc3!? 12.Qf3 Nb1 (12...Qa2?? 13.Rb8 Rb8 14.Qf7 Kd8 15.Qd7) 13.Qa8 Qb4+=) 12.Qf3+= d5 (12...Qa2 13.Qb7 Qd5 14.Qc8 Ke7 15.Rb8 Rb8 16.Qb8+-) 13.Bb5 Ke7 14.Bg5 (better 14.Ba3 Qc7 15.c4+=) 14...a6?? (14...Qa2 15.Re1 Qb2= (15...Qc2?? 16.Qh5 Kd6 17.Qf7+-; 15...cd4?? 16.Qh5 Kd6 17.Nf7 Kc5 18.Bf6 Kb5 19.Nh8 Qc4 20.Kg1+-)) 15.Bc6+- h6 (15...Qa2 16.Bf6 Kd6 A) 17.Ba8 Qb1 18.Ke2 Qc2 (18...Qh1?? 19.Qa3 Qf1 20.Kf1 Nc6 21.Qc5 Kc7 22.Qc6 Kb8 23.Qb7) 19.Ke1 gf6 20.Nf7 Ke7 21.Nh8 cd4=+; B) 17.Rb6+-) 16.Rb7 Kd8 17.Bf6 gf6 (17...Kc8 18.Qb3 Nc6 19.Nc6 Qb5 20.Rb5 ab5+-) 18.Qf6 Kc8 19.Qf7 (19.Qf7 Rh7 20.Qe6 Nd7 21.Rd7 Qb5 22.Bb5 Re7 23.Re7 Kd8 24.Qd7) 1-0. Shirazi,K (2355) - Gherghinoiu,Lucas (2085), ch-FRA Blitz Online Qual, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3)

5.Nc3 e6 6.Rb1 Qc8 7.Bc4 Be7 =. letitbe (2425) – rr (2275), net–chess.com, 2008.

5.Nc3 e6 6.Bb5 a6 7.Ba4 (7.Bc4 d5 8.ed5 ed5+/-) 7...Nf6 (7...Nc6 8.0-0=) 8.e5 (8.Rb1 Be4 9.Ne4 Ne4=) 8...Nd5 9.Nd5 (9.0-0 Nc3 10.dc3 Bd5=) 9...Bd5= 10.c3 (10.0-0 Qa5 11.c4 Bc4+=) 10...Be7 11.0-0 Qc7 (11...Nc6!?+=) 12.d3 0-0 13.Qe2 (13.Bf4 Qa5 14.Bd2 Bc6=) 13...f6 (13...Nc6 14.Re1+=) 14.c4 Bb7 15.Bb2 (15.Rb1 Nc6 16.Bf4 f5=) 15...Nc6 16.Rab1 Rab8 17.Rfe1 Na5 (17...f5 18.Rf1=) 18.Nd2 f5 19.Qh5 (19.Bc3 Bc6 20.Ba5 Qa5 21.Bc6 dc6+=) 19...f4 (19...Nc6 20.Ba1+=) 20.Ne4 (20.Bc3 Rf5 21.Qd1 Nc6=) 20...Rf5 (20...Be4 21.Re4 Rb4 22.Bd1+=) 21.Qg4 Be4 22.Re4 Nc6 23.Bc6= Qc6 24.Qd1 d5 25.ed6 Qd6 26.Ba3 Kf7 27.d4+= Rb1 28.Qb1 Qc6? 29.dc5 Bc5 30.Bc1 g5 31.Qc2 Qb6 32.Bb2 Ke7 33.h3 h5 34.Qb3 Bf2+= 35.Kf1 Bc5 36.Qb6 Bb6 37.Ba3 Kd7 38.Re2 Bc5 39.Rd2 Kc7 40.Bb2 Be3 41.Rc2 Kc6 42.Ke2 g4 43.hg4 hg4 44.Kd3 Bc5 45.Ke4? f3-+ 46.gf3 gf3 47.Rc1 f2 48.Rf1 Rg5 49.Bd4 Rg4 (49...Rg4 50.Kf3 Rd4 (50...Bd4?! 51.Kg4 Kc5 52.Rc1=) 51.Rf2 Rc4-+) 0–1. Siegel,Rainer – Hoelzenbein,Werner, Karl Mala Memorial op, 2001. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 Nf6 6.Bc4 Ne4 7.Bf7 Kf7 8.Ng5?? (better is 8.Ne4 Be4 9.Ng5 Kg8 10.Ne4+=) 8...Ng5-+ 9.Qh5 Kg8 10.Qg5 Nc6 11.Qc5 e6 12.Qe3 (12.Qb5 Rb8 13.0-0 Nb4-+) 12...Ne7 (12...Nb4!? 13.Kd1 Qf6 14.Rg1-+) 13.0-0 Nf5 14.Qe5 (14.Qe2-+) 14...Bd6 15.Qb5 (15.Qe2 Bg2! 16.Rb1 Qh4-+) 15...Bc6 (15...Bg2!? 16.f4 Bf1 17.Qf1 Qb6 18.Kh1-+) 16.Qe2 (16.Qd3 Qh4 17.h3 Rb8-+) 16...Qg5 (better is 16...Bg2 17.Rd1 Nd4-+) 17.g3 (17.Ne4 Bh2! 18.Kh2 Qh4 19.Kg1-+) 17...Nd4 18.d3 (18.Qa6 Qh5 19.f4-+) 18...Ne2 19.Ne2 Qg4 (better is 19...Qd5!? 20.f3 Bc5 21.Kg2-+) 20.Nf4 Qf3 (20...Qf3 21.Nd5 Bd5 22.c4 Qg2) 0–1. Graff,Jon – Newton,Ken, LERA Memorial Day, Rd, 1993. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 Nf6 6.e5 Nd5 7.Bb2 Nf4 8.g3 Ng6 9.Qe2 Nc6 10.Ne4 Nb4 11.d4 Qa5 12.c3 cd4 13.cb4 d3?? (13...Qb4 14.Qd2 Qd2 15.Ned2 Ne5 16.Be2+/-) 14.Qd3 (better is 14.Qd2 Qd8 15.Bd3+-) 14...Qb4+/- 15.Nc3 Rb8 (15...Rd8 16.Rb1 Ne5 17.Ne5 Bh1 18.Qf5+/-) 16.0-0-0 d6? (better is 16...Rd8+/-) 17.Qb5+- Qb5 18.Bb5 (18.Nb5? Bf3 19.Bd3 Bh1 20.Rh1 Rc8 21.Kd2 a6-+) 18...Kd8 19.Be2 (better is 19.ed6 ed6 20.Ng5+-) 19...Ne5?? (better is 19...Bf3 20.Bf3 Ne5+-) 20.Ne5 Bh1 21.Nf7 (21.Rh1?! de5 22.Rd1 Kc7 23.Nd5 Kb7 24.Be5 Rc8 25.Nc3 Rc5+-) 21...Kc7 22.Nh8 (22.Nh8 Bc6 23.Nf7+-) 1–0. Fadil,Hicham (1765) – Hoefer,Michael, Kaupthing op–B 1st, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 Nf6 6.e5 Nd5 7.Nd5 Bd5 8.c3 e6 9.Be2 Nc6 10.0-0 Be7 11.d4 0-0 12.Nd2 Na5 13.Bd3 f5 14.ef6 Bf6 15.Ne4 cd4 16.Nf6 gf6 17.cd4 Rf7 18.Re1 Nc6 19.Be4 Ne7 20.Ba3 Qa5 21.Be7 Re7 22.Qf3 Be4 23.Re4 Rf8 24.Qb3 Rg7 25.Rae1 Rc8?? (better is 25...Qg5 26.g3 a6=) 26.Re6!+- d5 (26...de6 27.Qe6 Double attack) 27.Qe3 Qd8 28.g3 Qf8 29.Qf3 Rf7 30.Qd5 Rd8 31.Qd8! Qd8 32.Re8 Qe8 33.Re8 Kg7 34.Rd8 Kg6 35.Kg2 Kf5 36.Kf3 Rc7 37.Rd5 Ke6 38.Rc5 Rb7 39.Rc6 Kf5 40.g4 Kg5 41.Kg3 h6 42.Ra6 Rd7 43.h4 Kg6 44.h5 Kf7 45.a4 Ke7 46.d5! Rd5 47.Ra7 Ke6 48.Rh7 Ra5 49.Rh6 Ra4 50.g5 Kf5 51.g6 Rg4 52.Kh3 Rg1 53.Kh2 Rg5 54.f3 Kf4 55.g7! Rg7 56.Rf6 Kg5 57.h6 Rh7 58.Rf8+/- Rh6 59.Kg3 Ra6 60.Rb8 Ra5 61.Rb4 Kf5 62.Rh4 Kg5 63.f4 Kg6 64.Rg4 Kf6 65.Rh4 Ra1 66.Rh6 Kf5 67.Rh5 Kf6 68.Rb5 Rg1 69.Kf2 Ra1 70.Rc5 Ra3 71.Re5 Rb3 72.Re3 Re3= 73.Ke3 Kf5 74.Kf3 Kf6 75.Ke4 Ke6 76.f5 Kf6 77.Kf4 Kf7 78.Kg5 Kg7 79.f6 Kf7 80.Kf5 Kf8 81.Kg5 Kf7 82.Kf5 Kf8 83.Ke6 Ke8 84.Ke5 Kf7 85.Kf5 Kf8 86.Kg6 Kg8 87.f7 Kf8 88.Kf6 ½–½. Frink,Ferenc (2200) – Orso,Janos (2195), HUN–chT2 Erkel, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Nc3 Nf6 6.e5 Ne4 7.Ne4 Be4 8.Bc4 e6 9.0-0 Be7 10.Qe2 Bc2= 11.d3 Ba4 12.Qe4 Bc6 13.Qg4 Kf8 14.Ng5 h5 15.Qg3 d6 16.Be6+= Bg5 17.Bg5 Qe8 18.Bb3 de5 19.Rac1 Nd7 20.d4 Bb5 21.Rfe1 cd4 22.Bd5 f6?? 23.Bd2+- g6 24.a4 Rb8 25.ab5 Rb5 26.Bc6 Rb8 27.Qa3 Kf7 28.Qa7 Ke6 29.Qd4 Kf7 30.Qa7 Rd8 31.Ba5 (31.Ba5 Qe7 32.Bd5 Kg7 33.Bd8 Rd8 34.Rc7+-) 1–0. De Vita,Gianni – Blasi,F, Rome op (8), 1990.

5.Nc3 g6 6.Rb1 Bc6 7.Bc4 Bg7 8.0-0 Nf6 9.e5 Nh5 10.Nd5 (better 10.Re1!?+/-) 10...e6= 11.Ne3 0-0 (11...Bf3 12.Qf3 Nc6 13.Ba3 Ne5 14.Qb7=) 12.Ng4 Bf3 13.Qf3 (worse 13.gf3 Nc6 14.Re1 f5 15.ef6 Nf6-/+) 13...Nc6 14.Bb2 Rb8 15.Bc3 Nd4 16.Qe4 (16.Bd4!? cd4 17.Qd3=) 16...d5=+ 17.ed6 f5 18.Be6 (better 18.Nh6! Kh8 19.Qe3-/+) 18...Kh8-+ 19.Qd5 (19.Rb8 Qb8 (19...fe4? 20.Rd8 Rd8 21.Bd4 cd4 22.Re1+-) 20.Qe1 Qd6 21.Bf5 gf5-+) 19...Rb1 (19...Nf4 20.Qc4 Nfe6 21.Rb8 Qb8 22.Ne3 Qd6 23.Bd4 cd4 24.Nd5-+) 20.Rb1 Nf4 (20...fg4?! 21.Bg4 Qh4 22.Bf3-/+; 20...Ne6?! 21.Bg7 Nhg7 22.Ne5=+) 21.Qc4 Nfe6 22.Ne3 Qd6 23.h4 (23.Rb7 f4 24.Qd5 Qa6 25.Bd4 Bd4-+ (25...fe3?! 26.Be3 Rd8 27.Qb3-/+)) 23...Nf4 (better 23...f4 24.Nd1-+) 24.Rb7 (24.Bd4 cd4 (24...Qd4?! 25.g3 Nh5 26.Qd4 cd4 27.Nc4-+) 25.Nf1 Qe7-+) 24...Bf6 (24...Nfe2 25.Kf1 Qh2 26.Bd4 Nd4 27.f4 Qf4 28.Kg1 Qh4 29.Rg7 Qe1 30.Kh2-+) 25.Ra7 (25.Bd4 cd4 (worse 25...Qd4 26.Ra7 Qa1 27.Kh2-+) 26.Nf1 Qe5 (26...Bh4?! 27.g3-+) 27.Ra7 Ne2 28.Kh1 Qe4-+) 25...Nde2 (25...Nfe2 26.Kf1 Qb8 27.Bd4 Nd4 28.Kg1 Qa7 29.c3-+) 26.Kf1 (26.Kh2 Bc3 27.dc3 Qb8-+) 26...Nc3 (better 26...Bc3 27.dc3 Rd8-+) 27.dc3 Rb8 (27...Bh4?! 28.g3 Qb6 29.Rd7 Bg3 30.fg3-+) 28.Kg1 Rf8 (better 28...Rb1!? 29.Nf1-+) 29.g3?? (29.Kf1 Nh5 30.Kg1-+) 29...Nh5-+ 30.Nd5 (30.Qd5 Qb6 31.Ra8 Ra8 32.Qa8 Kg7-+) 30...Bg7 Black prepares f4 31.Ra6 Qe5 32.Qc5? (32.Ra7-+) 32...f4 33.g4 (33.Qe7 Qd5 34.Rd6-+) 33...f3 (33...Qe1 34.Kh2 f3-+) 34.gh5 (34.Qc4 Ng3! 35.Ne3-+) 34...Qe1 (34...Qh5 35.Qc4+=) 35.Kh2 Be5 36.Kh3 (36.Nf4 Bf4 37.Kh3 Qf1 38.Kg4 Qg2) 36...Qh1 37.Kg4 Qg2 0-1. Sharikov,Al (2200) - Bashirli,Nail (2380), PNWCC Opening Bl Sicilian, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3)

5.Nc3 g6 6.Rb1 Qc7 7.Bc4 e6 (7...Nf6 8.Ng5 Bg7 9.Nb5+-) 8.0-0 (better 8.Nb5 Qd8 9.Bb2+-) 8...Bg7?? (better 8...a6 9.Qe2 Be7+-) 9.d3 (better 9.Nb5 Qb6 10.d4+-) 9...Bc3-+ 10.Bb3? (10.g3-+) 10...Nc6 11.Ba3 (11.Bd2 Bg7-+) 11...Na5 (11...Nd4 12.Nd4 Bd4 13.Qc1-+) 12.d4 (12.Ba4-+) 12...Be4 (12...Nf6!? 13.e5 Ne4 14.dc5-+) 13.Bc5 Ne7 (13...Nf6!? 14.Qe2-+) 14.Qe2 Bc6 (14...Nb3 15.Rb3 Bd5 16.Rc3=+) 15.Qd3 Nb3 16.Rb3 Nd5 (16...Ba5 17.Be7 Ke7 18.Ne5-+) 17.Ng5? (17.Rc3 d6 18.Ba3 Nc3 19.Qc3 0-0-0-/+) 17...d6 (17...Nf4 18.Qe3 Ba5 19.Ne4 Be4 20.Qe4-+) 18.Ba3? (18.Rc3 Nc3 19.Qc3 dc5-+) 18...0-0 (better 18...Ba4 19.Rbb1 0-0-+) 19.Qh3 h5 20.g4?? (better 20.Rc3 Nc3 21.Qc3-+) 20...Qe7 (20...Bd4!? 21.gh5 Nf4 22.Qg4-+) 21.Ne4 (21.Bc1 f6 22.Ne4 Bd4 23.gh5 g5-+) 21...Bd4 22.Nd6 (22.Bd6 Qd6! 23.Nd6 Nf4-+) 22...Qg5 (better 22...Nf4 23.Ne4 Nh3 24.Rh3 Qd8 25.Bf8 Be4-+) 23.Rg3 (23.Qg2 Rfd8 24.c4-+) 23...Nf4 24.Qh5 Ne2 0–1. Alsulaymi,Abdullah M (1830) – Ahmed,Hassan Abdillahi, World Rapid, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Bc4 e6 6.Nc3 d5 7.ed5 ed5 8.Bb5 Nc6 9.0-0 (better 9.Ne5 Qc7 10.Qe2+-) 9...a6? (9...Nf6 10.Rb1 Qc7 11.Re1 Be7+-) 10.Re1 (10.Ba4!? Qf6 11.Re1 Be7+-) 10...Be7 11.Ba4 Rc8 12.Rb1 (12.Ne5 Kf8 13.Rb1 Ba8 14.Bc6 Bc6+-) 12...Ba8 13.Qe2 (13.Ne5!? Kf8 14.Bc6 Bc6+-) 13...Kf8 14.Qa6 Nb4 15.Qe2 d4 (15...Bc6 16.Bc6 Rc6 17.Qd1+-) 16.Ne4 (16.Ne5 Nf6 17.Qc4 Nbd5+-) 16...Na2? (16...d3 17.Qd1 dc2 18.Bc2 Nf6+-) 17.Bb3?? (better 17.Ba3 Be4 18.Qe4+-) 17...Nc1+- 18.Rbc1 Bd5? (better 18...c4!? 19.Ba2 Nf6+=) 19.Bd5+- Qd5 20.Rb1 (20.Ra1 c4+-) 20...g6 21.c4 (21.Qa6 Ra8 22.Qb7 Qb7 23.Rb7 Nf6+-) 21...Qd8 22.Rb7 (22.h4!?+-) 22...Rc7+- 23.Rb5 (23.Reb1 Rb7 24.Rb7 Qc8+=) 23...Nf6+= 24.Neg5 (better 24.Nfg5 Ne4 25.Ne4+=) 24...Ne8?? (24...Bd6 25.Qd3=) 25.Reb1?? (better 25.Qe5 Bf6 26.Qf4 Bg5 27.Ng5+- (27.Qg5?! Qg5 28.Ng5 Nd6=)) 25...Bg5=+ 26.Rb8 Qe7 27.Qd3 Kg7 28.Re1 Qd7 (28...Qf6 29.Rbe8 Re8 30.Re8=+) 29.Ng5= Nd6 30.Rh8 Kh8 31.Qe2 (31.Qf3 h6 (worse 31...Nc4 32.Ne6 Kg8 33.Nc7 Qc7 34.Qf6+-) 32.Qf6 Kg8=) 31...Qf5 32.h4 (32.Nf3 Kg7=) 32...d3 (32...h6 33.Nf3=) 33.Qe3= Nc4 34.Qe8 Kg7 35.Qd8 (35.Qb8 Rc8 36.Qa7 Nd6= (36...Nd2? 37.Nf7 Qf7 38.Re7+-)) 35...Rd7 (better 35...Rb7 36.Ne4 Rd7-/+) 36.Qc8?? (36.Qb8 h6 37.Nf3=) 36...Nd6 (better 36...Re7! 37.Qh8 Kh8 38.Re7 Qf4-+) 37.Qc6= Rd8 38.Re3 (better 38.Re7 Qc8 39.Qb6+=) 38...h6?? (38...Qc8 39.Qb6 Nf5=) 39.Nf3?? (better 39.Ne6! fe6 40.Rf3+-) 39...c4 (39...Nc4 40.Re1 Rb8 41.Qa6=+) 40.Re5 (40.Ne5!?=+) 40...Qc8-/+ 41.Qb6 (41.Rc5 Qc6 42.Rc6 Kf6-/+) 41...c3-+ 42.Rc5 c2 43.Qb2 (43.Rc8 Rc8 44.Qb2 Kg8-+) 43...Kg8 44.Rc8 Rc8 45.Qc1 Nf5 46.Kh2 Rb8 47.Ne1 Rb1 48.Nd3 Rc1 49.Nc1 Nh4 (49...Kg7 50.g3-+) 50.Kg3 (50.Kg1-+) 50...g5 51.f3 (51.d4 f5-+) 51...f5 52.Kf2 (52.f4 Kf7-+) 52...f4 53.g3 (53.d4-+) 53...fg3 54.Kg3 Nf5 (better 54...h5 55.Kf2-+) 55.Kf2 (55.Kg4 Ng7 56.f4 gf4 57.Kf4 Ne6 58.Kg4-+) 55...h5 0–1. De Vita,Gianni – Vezzosi,Paolo, 38th International Festival CittAi di A, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Bc4 e6 6.Nc3 Nf6 7.d3 (7.Qe2 Nc6+=) 7...Be7 (7...d5 8.Rb1 Bc6 9.ed5 ed5 10.Bb5=) 8.Rb1+= Bc6 9.0-0 (9.Ne5 0-0+=) 9...0-0 (9...d5 10.Bb5=) 10.Ne5+= Ne8 (10...Qc7 11.f4+=) 11.Qg4 (11.Be3 Qa5 12.Nb5 d6 13.Nc6 Nc6+=) 11...Bf6 (11...Nd6 12.Bb2+=) 12.f4 (12.Bf4 d6 13.Nf7 Rf7 14.Qe6 Qd7+/-) 12...Qc7 (12...Nd6 13.Bb3 c4 14.Ba3 cb3 15.Bd6 ba2 16.Na2+=) 13.Bb2+/- d6 14.Nf7 Rf7 (14...Qf7 15.Be6 Pinning (15.Be6 Decoy); 14...Rf7 15.Qe6 Pinning (15.Qe6 Decoy); 14...Kf7 15.Qe6 Mate attack) 15.Be6 (15.Qe6 Bd4 16.Kh1 Nf6+/-) 15...Bd4+= 16.Kh1 Nf6 17.Qg3 Nbd7 (17...Na6 18.Nb5 Bb5 19.Bd4 (19.Bf7?! Qf7 20.Bd4 Ne4=) 19...cd4 20.Rb5+=) 18.Ne2 Bb2 19.Rb2 Re8 (19...Raf8 20.Rfb1+/-) 20.f5 (20.Bf7 Kf7 21.Rfb1 Nb6+/-) 20...Nf8 (20...Ree7 21.Rfb1+/-) 21.Bf7+/- Qf7? (21...Kf7 22.Rfb1 Kg8+/-) 22.Nf4?? (better is 22.Qd6 Qd7 23.Qc5+-) 22...d5= 23.ed5 Nd5 24.Nd5 Bd5 25.c4 Bc6 26.h3 Qf6= 27.Rfb1 Nd7 28.Qc7 Qh6 29.Rf1?? Qh3-+ 30.Qh2? Bg2?? 31.Rg2+= (31.Rg2 Qd3 32.Rfg1+=) 1–0. Pundt,Wilfried (1795) – Mueller,Manfred (1895), Berlin GER, Team Senior Ch, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.Bc4 e6 6.d3 h6 7.0-0 Bd6 (7...Nc6 8.Be3+=) 8.Nc3 (better is 8.Na3+/-) 8...Qc7?? (8...Nc6 9.Qe2+=) 9.Bb2?? (better is 9.Nb5 and White wins 9...Qc6 10.d4+-) 9...a6+/- 10.Rb1 Nf6? (10...Nc6 11.Re1+=) 11.Qe2?? (11.e5 Be5 12.Ne5 d5+-) 11...0-0?? (11...Nc6 12.g3=) 12.Rfe1?? (12.e5 seems even better 12...Be7 13.ef6 Bf6+-) 12...Ng4?? (12...Be7=) 13.Nd1?? (better is 13.e5 would have given White a clear advantage 13...Ne5 14.Ne5+-) 13...Nh2 14.Nh2 Bh2 15.Kh1 Be5?? 16.Be5+- Qe5 17.Rb7 Nc6 18.Qg4 d5? 19.f4 Qd6 20.ed5 Na5 21.Re6! Qd8 22.Reb6 Nb7 23.Rb7 Qf6 24.Nf2 Rfb8 25.Ne4 Qa1-/+ 26.Kh2 Rb7 27.Bb3 Qd4 28.d6 Rd8 29.Bd5 Kh8?? 30.Bb7+- c4 31.Ba6 cd3 32.Bd3 Qd5 33.Qh4 f6 34.Nf6! Qd6 35.Ne4 Qd5 36.Qg4 Re8 37.Qg6 Re7 38.Ng3 Kg8 39.Qh7 Kf7 40.Bg6 Kf6 41.Ne4 Ke6 42.Qg8 Kd7 43.Bf5 Kc7?? 44.Qc8 Kb6 45.Qb8 Rb7 46.Qd6 Qd6 47.Nd6 Ra7?? the final mistake, not that it matters anymore 48.Nc8 Kb7 49.Na7 Ka7 50.Kg3 (50.Kg3 Kb7 51.Kg4+-) 1–0. Aufmwasser,Guenter – Golbs,Horst, GER–ch Seniors, 2001. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Bb7)

5.d4 cd4 6.Nd4 Be4=+ 7.Bc4 Nc6 8.Nc6 Bc6 9.0-0 Nf6 10.Nc3 e6 11.Bg5 Be7 12.Bf6? Bf6-+ 13.Ne4?? Be4 14.Rb1 0-0 15.Qg4 d5 16.Bd3 Bd3 17.cd3 Rb8 18.Rbd1 g6 19.f4 Bg7 20.d4 Rb2 21.h4 h5 22.Qg3 Bf6 23.f5 ef5 24.Rf4 Re8 25.Rdf1 Ree2 26.R4f2 Rf2 27.Rf2 Bd4 (27...Bd4 28.Kh2 Bf2-+) 0–1. poulmorphy (1755) – 1paul1 (1895), kurnik, 2011.

4.Nf3 Nc6

5.Bb5 Bb7 6.0-0 e6 7.Re1 Nf6 8.c3 Be7 9.d4 cd4 10.cd4 a6 11.Ba4 Na5 12.d5 ed5= 13.ed5 Bd5 14.Re7? Qe7-+ 15.Ba3 Bf3 16.gf3 Qe5 17.Nd2 Nd5 18.Ne4 Nc4 19.Bc5 f5 20.Bd4 Qe6 21.Ng5 Qg6 22.Qe2 Ne7 23.Qc4 Qg5 24.Kh1 Rc8 25.Qa6 0-0 26.Bd7 Rc1 27.Rc1 Qc1 28.Kg2 Ng6 29.Be6 Kh8 30.Be3? Nf4 31.Kg3?? Nh5 32.Kh4? Qg1 33.Qd6=+ Ra8 34.Kh5 Qg2?? 35.Qg3+- Qf1 36.Bd4 Rg8 37.Bg8 Kg8 38.Qg7 1–0. Stock,Ulrich – Muller,Alfred, Schleswig Holstein–ch (1), 1988.

5.Bb5 Bb7 6.0-0 Nf6 7.Re1 g6 8.Bb2 Bg7 9.Na3 0-0 10.d3 Qc7 11.Nc4 Rab8 12.Rb1 Nb4 13.a3 Bc6 14.Bc6 Nc6 15.Bc3 (15.Qe2 Rfe8+=) 15...Rb1= 16.Qb1 Rb8 17.Qa1 Ne8 18.Bg7 Ng7 19.Ne3 Qb7 (19...Ne6 20.Nd5 Qb7 21.c3=) 20.Qc3 (20.c3 Qb2+=) 20...Ne6= 21.Nc4 Ncd4 22.Nd4 Nd4 (22...cd4 23.Qa5=) 23.Qd2 Qb1 24.Ne3 (better 24.c3!? Nc2 25.Rc1+=) 24...Qa2=+ 25.h4 Rb1 (25...Qa3 26.Nd5 e6 27.Nf6 Kg7 28.Nd7 Rb7=) 26.Rb1= Qb1 27.Kh2 Qb8 28.Kg1 Qf4 29.c3 Nc6 30.g3 Qf3 31.Qd1 Qd1 32.Nd1 Kg7 (32...e6 33.f4=) 33.f4+= h5 34.Kf2 d6 35.Ke3 e5 36.Nb2 Kf6 37.Nc4 (37.fe5 Ne5 38.d4 Ng4 39.Kf4 Ke6+=) 37...Ke6 (37...Ke7 38.Ke2=) 38.Kf3 ½-½. Leisch,Lukas (2400) - Huber,Mart AUT (2340), ch-AUT Rapid, 2021. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 b6 3.bc5 bc5 4.Nf3)

5.Bb5 Bb7 6.0-0 Nf6 7.Re1 g6 8.Nc3 Bg7 9.Rb1 0-0 10.d3 d6 11.Ba4 Na5 12.e5 Nd5 13.Nd5 Bd5 14.ed6 ed6 15.c4 Bc6 16.Bd2 Qd7 ½–½. Kravtsiv,Martyn (2295) – Matjushin,Gennady (2420), UKR–ch sf Alushta, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Bb5 Bb7 6.Bc6 Bc6 7.Nc3 Nf6 8.d3 Rb8 9.0-0 e6 10.e5 Nd5 11.Nd5 Bd5 12.c4 Bf3 13.Qf3 (worse is 13.gf3 d6 14.f4 Be7-/+) 13...Be7 14.Re1 0-0 15.Qg4 f5 16.Qg3 g6 17.Bh6 Re8 18.Rab1 Rb1 19.Rb1 Qc7 20.h3 Rb8 21.Rb8 Qb8 22.Qf3 (better is 22.Kh2=) 22...Qb2?? (better is 22...Qe5 23.Qb7 Qa1 24.Kh2 Qd4-/+ (24...Qa2 25.Qd7 Kf7 26.Bg5 Kg7 27.Qe7 Kg8 28.Bf6 Qc4 29.Qe8)) 23.Qa8+/- Kf7 24.Qa7?? (better is 24.Qh8!? d6 25.Qh7 Ke8 26.Qg6 Kd7 27.ed6 Qa1 28.Kh2 Qe5 29.Qg3 Qd6 30.Bf4+-) 24...Qe5 25.a4 (25.Qd7 f4 26.Qb7 Qe1 27.Kh2 Qf2=) 25...Kf6 (25...g5 26.Qd7 Qa1 27.Kh2 Qf6=) 26.a5 Bd6 (better is 26...Qe1!? 27.Kh2 Bd6 28.f4 Qh4 29.Qd7 Bf4 30.Bf4 Qf4 31.Kg1 Qc1 32.Kh2 Qf4 33.Kh1 Qf1 34.Kh2 Qf4=) 27.Qa8?? (better is 27.g3 Qa1 28.Kg2+-) 27…Qe1 0–1. Chrabalovski,Gustavo – Curuchet,Nazareno, ARG–ch U10 sf1, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Bb5 Qc7 6.0-0 Rb8 7.Qe2 Ne5 8.Ne5+= Qe5 9.Nc3 g5 10.Bb2 Nf6 11.Rab1 Qe6 12.Bc4 Qg4 13.f3 Qh4 14.Nd5 Rb2 15.Nf6 ef6 16.Rb2 Bd6 17.g3 Qh3 18.Bd5 Ke7 19.Bb7 c4 20.Qg2 Qh5 21.Rfb1 Bc5 22.Kf1 Rd8 23.Bc8 Rc8 24.Rb8 Rc6 25.Rg8 c3 26.d3 Be3 27.Ke2 Bd2 28.Rb3 g4? 29.Rg4 Qh6 30.f4 Qh5 31.Kf3 f5 32.ef5 Qf5 33.Rg5 Qf6 34.Re5 Kd8 35.Qe2 Ra6 36.Rb8 Kc7 37.Rc5 Rc6 38.Rc6?? Qc6-/+ 39.Kf2 Kb8 40.Qe8 Kc7 41.Qf7 Qe6 42.Qh7 Qa2 43.d4 Qe6 44.Qh5 Be3 45.Kf3 Bd4 46.Qa5 Qb6 47.Qa2 Qc6 48.Ke2?? Qe6 49.Qe6-+ de6 50.Kd3 Bg1 51.h4 Bf2 52.h5 Bg3 53.Ke4 Bh4 54.Ke5 Kd7 55.h6 Ke7 56.Kd4 Bf6 57.Kc4 Kd7 58.Kb5 Kc7 59.Kc5 a6 60.h7 Bh8 61.Kb4 Kc6 62.Ka5 Kd5 63.Ka6 Ke4 64.Kb5 Kf4 65.Kc4 Ke4 66.Kc5 Ke3 67.Kc4 Kd2 0–1. Pomaro,S (1915) – Redo,G (2035), Autumn Open Venice ITA (4), 2005.

5.c3 e5 6.Qb3 d6 7.Bc4 Nh6 8.d4 Rb8 9.Qa4 (better is 9.Bb5!? Bd7 10.d5 Rb5 11.Qb5+-) 9...Bd7+= 10.Bb5 Qb6 11.Na3 Be7?? (better is 11...ed4 12.cd4 Ng4+/-) 12.d5 Qa5 13.dc6 (13.Bc6?! Qa4 14.Ba4 Ba4 15.Bh6 gh6+=) 13...Qc3 14.Kd1 Qa1 15.cd7 Kf8 16.Qa7 Rd8 17.Nc4 (better is 17.Nc2 Qc3 18.h3 d5+-) 17...f6? (17...d5 18.Kc2 d4 19.Nce5 (19.Nfe5?! Qc3 20.Kb1 Qb4 21.Ka1 Ng4+-) 19...Qc3 20.Kd1+-) 18.Qc7 (better is 18.Kc2 Kf7 19.Rg1+-) 18...Qa2 19.Nd6 (19.Nfd2 Nf7+-) 19...Qe6? (19...Ng4 20.Rf1 Nf2 21.Ke1 Ne4 22.Ne4 Qb1+-) 20.Bh6 gh6 21.Nb7 (better is 21.Nc4 Qg4 22.Re1+-) 21...Ra8?? (better is 21...Qb3 22.Kd2 Qb5 23.Nd8 Qb2 24.Ke3 Qb3 25.Ke2 Qb5 26.Ke1 Qb1 27.Ke2 Qb5 28.Kd1 Qb1 29.Ke2 Qb5=) 22.d8Q (better is 22.Ke2 Qb3 23.Bd3+-) 22...Bd8+= 23.Nd8?? (better is 23.Qc6 Qc6 24.Bc6 Ra1 25.Kd2 Rh1 26.Nd8-/+) 23...Qb3 24.Ke2 Qb5 25.Kd1 Ra1 26.Kc2 (26.Kd2 Ra2 27.Kc3 Qb4 28.Kd3 Qb3) 26...Ra2 27.Kc3 Qb4 28.Kd3 Qb3 0–1. Chan – Vang, CHN (Women) corr, 1992. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.c3 e6 6.Be2 Nf6 7.d3 d5 8.Nbd2 Qc7 9.0-0 Bd6 10.Re1 0-0 11.Bf1 h6 12.d4 cd4=+ 13.cd4 de4 14.Ne4 Ne4 15.Re4 Ne7 16.Ne5 Bb7 17.Rg4 f5 18.Rg3 f4 19.Rg4 Be5 20.de5 Qe5 21.Rb1 Rad8 22.Bb2 Qb2 23.Qd8 Qb1 24.Qe7 Qb2 25.Qe6+= Kh8 26.Qe7 Qf6 27.Qb7 h5 28.Rf4 Qf4 29.Qa7 Qe5 30.Qe3 Qe3 31.fe3 Ra8 32.Bc4+= g5 33.Kf2 Kg7 34.h3 Kf6 35.Bd5 Ra7 36.g3 Ke5 37.e4 Rc7=+ 38.h4 g4 39.Kg2 Kd4 40.a4 Ke3 41.Kf1 Kf3-+ 42.e5 Kg3 43.e6 Kf4 44.a5 Ke5 45.Bb3 Kf6 46.a6 Rc6 0–1. Covlea,Vlad (2290) – Istrate,Bogdan (2330), MI Festival Bucharest (7), 1999.

5.c3 Nf6 6.e5 Nd5 7.d4 e6 8.Bc4 Nb6 9.Bb5 Bb7 10.Ba3 cd4 11.Bf8 Rf8 12.cd4 Nd5 13.Qd2 Qa5 14.Bc4 Qd2 15.Nbd2 (worse is 15.Nfd2 Nd4 16.Na3 Nf4-+; 15.Kd2?! Nf4 16.Na3 f6=) 15...Ndb4 16.Rb1 Ba6 17.Ba6 Na6 18.a3 Nc7 19.Nc4 Ke7 20.Kd2 Rfb8 21.Kd3 f6 22.g3 Rb1 23.Rb1 Rb8 24.Rb8 Nb8 25.Nfd2 f5 (25...Nc6!?+=) 26.Nd6+/- Nc6 27.Nb1 Ne8 28.Ne8 Ke8 29.Kc4 Kd8 30.Nc3 Kc7 31.f4 Kb6 32.Na4 Kb7 33.d5 Nd8 34.Nc5 Kc7 35.de6 de6 36.Kb5 Kb8 37.Ka6 Ka8 38.Nd7 h6 39.h4 Nf7? (better is 39...h5 40.Nc5 Kb8+/-) 40.Kb5+- Nd8 41.Kc5 Nb7 42.Kc6 Nd8 (42...Na5 43.Kd6 Kb7 44.Nc5 Kb6 45.Ne6+-) 43.Kd6 1–0. Domanski,Robert – Kacian,Jim, corr, 1988. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Nc3 Rb8+=.

5.Nc3 d6 6.Be2 g6 7.0-0 Bg7 8.Rb1 Nf6 9.Nd5 (9.e5 de5 (worse 9...Ne5 10.Ne5 de5 11.Bf3+-) 10.Bb5 Bd7+=) 9...Ne4= 10.Bb5 Bd7 11.Re1 f5 12.Nf4 (12.d3 Nc3 13.Nc3 Bc3 14.Bd2 Bd2 15.Qd2=) 12...e5 (12...Nd4 13.Bd3=+) 13.Bc6 (better 13.Ne6! Be6 14.Bc6 Kf7 15.Ba8 Qa8 16.Rb2+=) 13...Bc6-/+ 14.Ne6 Qd7 15.Ng7 Qg7 16.Bb2 0-0 17.Qe2 (17.d3 Nf6-/+) 17...Bd5 (17...Rab8 18.d3 Nf6 19.c4-/+) 18.Qa6 (18.c4 Bb7=+) 18...Qd7 (18...Rfb8 19.Ba1 Qe7 20.c4-/+) 19.d3 Nf6 20.Ng5 (20.Nd2 Rab8 21.f4 ef4-/+) 20...h6-+ 21.Nh3 g5 22.f3 g4 23.fg4 Ng4 (23...fg4 24.Nf2-+) 24.Bc1 Kh7 25.Bd2 Rg8 26.Re2 (26.c4 Qc6 27.Qc6 Bc6-+) 26...f4 27.Bf4 ef4 28.Nf4 Bc6 (better 28...Rab8 29.Rbe1 Rge8-+) 29.Nh5? (better 29.d4 Kh8 30.Qd3-+) 29...Raf8 (29...Rae8 30.d4 Bb5 31.Rb5 Re2 32.Rb1-+) 30.Rbe1 Ne5 31.c3 (31.Ng3-+) 31...Nf3 32.Kh1 (32.Kf1 Nh2 33.Kg1 Nf3 34.Kf1 Nd4 35.Kg1-+) 32…Ne1 (32...Ne1 33.Re7 Qe7 34.Nf6 Rf6 35.d4 Bg2 36.Kg1 Qe3) 0–1. Snigurov,Maxim (2065) – Yarmysty,M (2300), Nebesna Sotnya Mem Blitz (13), 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Nc3 e6 6.Bc4 d6 7.0-0 Nf6 8.Rb1 Be7 9.d3 0-0 10.Re1 d5 (10...Bd7 11.Bf4+=) 11.ed5 (11.Bb5 Bb7+/-) 11...ed5 (11...Nd5 12.Bd2+=) 12.Bb5+/- Bd7 13.Bg5 (13.Bc6 Bc6 14.Ne5 Be8+/-) 13...d4+= 14.Bf6 Bf6 15.Ne4 Be7 16.Qd2 (16.Qc1 Rb8=) 16...Nb4 17.Bc4 Bc6 (17...Qc7 18.c3 Nc6 19.Bd5+=) 18.a3 (18.Ne5 Rc8+/-) 18...Nd5 19.Ne5 Be8 (19...Qc7!? 20.Nc6 Qc6+/-) 20.Rb7+- Bd6 (20...Nb6!? 21.Bb3 Kh8+-) 21.Nd6 (21.Bd5 Be5 22.Qg5 Qg5 (22...Qd5?? 23.Nf6 Bf6 24.Qd5+-) 23.Ng5 Bf4 24.Nf7 Bf7+-) 21...Qd6 22.Qa5 (22.Qg5 Rd8+-) 22...Ne3 (22...Bc6!? 23.Ra7 Rae8 24.Nc6 Qc6 25.Bd5 Qd5+/-) 23.fe3+- Qe5 24.e4 Bc6 (24...a6 25.Rf1+-) 25.Ra7 Kh8 26.Rf1 Qg5 (26...f6 27.Rf5 Qe7 28.Ra8 Ra8 29.Qc5+-) 27.h3 (better is 27.h4 Qe3 28.Kh2+-) 27...Rab8? (better is 27...f6+-) 28.Qc7 f5 29.Qc6 fe4 30.Rf8 Rf8 31.Qe4 Qc1 32.Kh2 h5 33.Qe5 (33.Qe5 Qf4 34.Qf4 Rf4 35.Rf7+-) 1–0. David,Edwin (2220) – Kvam,Audun (1945), Eliteserien NOR, 2011. (=1.e4 c5 2.b4?? b6?? 3.bc5+/- bc5 4.Nf3 Nc6)

5.Nc3 e6 6.Bc4 Be7 7.0-0 d6 8.Rb1 Nf6 9.d3 0-0 10.h3 Na5 11.Bb5 Bd7 12.Bf4 (12.Bd7 Qd7 13.Bf4 Rab8=) 12...Bb5 13.Nb5 a6 14.Nc3 Rb8 15.Qd2 Nc6 16.Rb8 Qb8 17.Rb1 Qa7 (17...Qc7 18.Qe3 Nd4 19.e5 (19.Nd4? cd4 20.Qd4 e5-+) 19...Nf3 20.Qf3 de5 21.Rb7=) 18.Qc1 (18.e5 de5 19.Ne5 Nd4+=) 18...Rb8= 19.Rb2 ½–½. Bartolozzi,Roberto (1935) – Kovanova,Mariya (2140), 7th Terre Degli Elimi, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Bc4 d6 6.0-0 Nf6 7.d4 cd4 (7...Ne4? 8.Bd5 Qd7 9.Be4+-) 8.Nd4 Bd7 9.Nc3 Ne5 10.Bb3 Rc8 11.Bb2 Nc4 12.Bc4 Rc4 13.Qd3 Rb4 14.Ba3 Rb8 15.Rab1 g6 16.Rb8 Qb8 17.Rb1 Qd8 18.Qa6 Bg7 19.Nc6 Bc6 20.Qc6 Nd7 21.Rb7 Bc3 22.Qc3 0-0 23.Bb2 (better is 23.Ra7!? Nf6 24.Qb4+/-) 23...e5+= 24.Ra7 Nc5 25.Ra5 Ne4 26.Qb4 Qh4 27.g3 Qg4 28.Ra4 Qd1 29.Kg2 Nd2 (29...Nd2 30.Qb5 Rc8-+; 29...Qc2?! 30.Qe4 Qb2 31.Qd5+=) 0–1. Szabados,Karoly (2100) – Jancikin,Svetozar (2070), Subotica SER, City Ch, 2012. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Bc4 d6 6.c3 g6 7.Qb3 e6 8.0-0 Rb8 9.Qc2 Bg7 10.Bb2 Qb6 11.Bc1 Nge7 12.Na3 d5 13.Rb1 Qa5 14.Rb8 Nb8 15.ed5 ed5 16.Bb5 Nbc6 17.d4 c4 18.Re1 0-0 19.Bc6 Nc6=+ 20.Qb2 Bg4 21.Nd2 Rb8-/+ 22.Ndc4? dc4-+ 23.Qd2 Qd5 24.Nc2 Qa5 25.h3?? Be6 26.a3 Rd8 27.Re3? Bh6 0–1. Dahl,C – Jensen,P, Denmark op, 1993.

5.Bc4 Nf6 6.e5 (6.Nc3!?+-) 6...Ng4= 7.Bf7 Kf7 8.Ng5 Kg8 9.Qg4 Ne5 (9...Qc7!? 10.0-0 h6= (worse 10...Ne5 11.Qg3+=)) 10.Qe4+= Nc6 11.Qf4 (better 11.Nc3+-) 11...Qe8=+ 12.Nc3 (12.0-0 Ba6 13.Re1 Nd4=+) 12...h6 (12...Nd4 13.0-0 Ba6 14.Rd1=+) 13.Nge4 (better 13.Nf3!?=) 13...Nd4-/+ 14.0-0 d6 (better 14...d5!? 15.Ng3 e5-+) 15.Rb1 g5 (15...d5 16.Ng3 e5 17.Qe3=+) 16.Qg3= Bf5 17.Re1 (17.d3 Nc2 18.Bd2 Bg7=) 17...Qg6 (17...Qc6 18.d3 d5 19.Nd2 Nc2 20.Re5-/+) 18.d3 Rh7 19.Be3 (19.Rb2!?=) 19...Nc2-/+ 20.Re2 Ne3 21.Qe3 (21.fe3? Rf7 22.Rf2 Bg7-+) 21...Bg7 22.Reb2 (22.Qd2!?-/+) 22...Bd4-+ 23.Rb8 Rb8 24.Rb8 Kg7 25.Qf3 g4 26.Qe2 (26.Qd1 Be4 27.Ne4 Qe6-+) 26...Qe6-+ 27.Nb5 Be5 (27...d5 28.Nc7 Qe5 29.Ng3 Qe2 30.Ne2-+) 28.Rb7 (28.g3 Qd5-/+) 28...a6 (28...c4 29.f4 A) 29...Bf4 30.Nd4 Qd5 31.Nf5 (31.Re7 Kg6 32.Nf5 Qf5 33.Rh7 cd3 34.Rh6 Kh6 35.Qd3 d5=+) 31...Qf5 32.Ng3 Qc5 33.Kf1+-; B) 29...gf3 30.Qf3 Kg6-+) 29.Na7?? (29.Ng3 Kg6 30.Na3-/+) 29...c4!-+ 30.Nc6 (30.dc4 d5 Double attack (30...d5 Decoy)) 30...cd3 31.Qd2 (31.Qd3?? Be4 32.Qe4 Bh2 33.Kh2 Qe4 34.Re7 Qe7 35.Ne7 Kf6-+) 31...Kg6 (31...Be4?! 32.Re7 Qe7 33.Ne7-/+) 32.Ne5 (32.Qd3?? Bf6 33.Rb4 d5 34.Qa6 Be4-+) 32...Qe5 (32...de5?! 33.Qd3 Qc6 34.Rb4-/+) 33.Nc3 (33.Ng3 e6 34.Rh7 Kh7-+) 33...Rh8 34.Rb3 (34.Rc7 Rb8 35.g3 d5 36.Rc6 e6-+) 34...Rc8 35.f3 (35.g3-+) 35...gf3 36.gf3 d5 (better 36...Kf7 37.Kh1-+) 37.Rb6 (37.f4 Qe6 38.Nd1-+) 37...e6 38.Rb3 (38.Rb1 Rc3 39.f4 Qc7-+) 38...Kh5 39.Kh1 (39.Rb1 Qd4 40.Kh1 Rc3 41.Qg2 d2 42.Rf1 d1Q 43.Qg1 Q4d3 44.Qg4 Bg4 45.Rd1 Qd1 46.Kg2 Rc2 47.Kg3 Qf3) 39...d4 40.Qd1 dc3 41.f4 (41.Qg1 c2 42.Rc3 Rc3 43.Qa1 c1Q 44.Qc1 Rc1 45.Kg2 Kh4 46.Kf2 Qe2) 41...Qe2 (41...Qe2 42.Qe2 de2 43.Kg2 e1Q 44.Rb4 Qe2 45.Kg1 Rg8 46.Kh1 Qg2) 0–1. Faccia,Sergio (2040) – Ricci,Alfredo (2020), 1nd Basso Veronese op, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Be2 d6 6.0-0 Nf6 7.c3 Bd7 (7...Ne4? 8.Qa4 Nc3 9.Nc3+-) 8.d4 Ne4 9.Bd3 Nf6 10.dc5 dc5 11.Qc2 g6 12.Be3 Bg7 13.Nbd2 0-0 14.Nb3 Qc7 15.Nc5 Nd5 16.Bd2 Ne5 17.Ne5 Be5 18.Nd7 Qd7 19.Be4 Rac8 20.Rad1 e6 21.g3 Qc7 22.Bd5 ed5 23.Be3 Rfd8 (23...Bc3?! 24.Rd5 Qc4 25.Rd3=) 24.Rd3 d4 (worse is 24...Bc3 25.Rc1 Be5 26.Qd1=) 25.Bg5 Re8 26.f4 Bg7 27.f5 Qb6 28.c4 Qc5 29.Qd2 gf5 30.Bh6 Bh6 31.Qh6 Rc6 32.Qh5 Re5 33.Qg5 Kf8 34.Qd8 Kg7 35.Qd4 Qd4 36.Rd4 Re4 37.Rd7 Kf6 38.Rd5 Re5 39.Rd4 Ke6 40.Rh4 Re4 41.Rh6 Kd7 (41...f6 42.Rh7 a6 43.Rh5+=) 42.Rh7 Rcc4? (better is 42...Ke6+=) 43.Rf7+- Ke6 44.R7f5 Re2 45.R5f2 Re3 46.Kg2 Ra4 47.Rd2 Rae4 48.Rff2 Ke5 49.Rb2 1–0. Della Corte,Alessandro (2250) – Di Giulio,Massimo (2005), Napoli Basile Memorial–A, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6)

5.Ng1 e6 6.Bc4 d5 7.ed5= ed5 8.Bb5 Bd7=+ 9.Nc3 Nf6 10.Nf3 d4 11.Bc6 Bc6-/+ 12.Ba3?? dc3-+ 13.dc3 Bb5 14.Rb1 Qe7 15.Kd2 0-0-0 16.Nd4 Ne4 17.Kc1 Nc3 18.Nb5 Rd1 19.Kb2 Rb1 20.Kc3 Rh1 21.Kc4 Qe4 (21...Qe4 22.Kc3 Be7 23.Bc5 Bc5 24.Nd6 Bd6 25.f4 Kb7 26.Kd2 Bb4 27.c3 Rd8) 0–1. avsholom (1785) – miklos (2040), net–chess.com, 2008.

5.g3 Bb7 6.Bg2 Qc7 7.Nc3 e6 8.0-0 a6 9.Qe2 Nd4 10.Qc4 Nc2 11.Rb1 Rc8 (11...Bc6 12.Bb2=) 12.a3 (12.Qb3 Nb4 13.a3 Ba8 14.ab4 cb4+=) 12...Nf6 (12...Bc6 13.Qd3 Nd4 14.Nd4 cd4 15.Qd4=) 13.d3 (better is 13.Qb3!? Nb4 14.Re1+=) 13...Nd4= 14.Bf4 Nf3 15.Bf3 Qc6 16.Kg2 Be7 (16...Ba8 17.Rb2+=) 17.Na4 (17.Rb7 Qb7 18.e5 Nd5 19.Nd5 ed5 20.Bd5 Qb6 21.Bf7 Kd8=) 17...d6 (17...d5!? 18.Qb3 Ba8+=) 18.Rb6= Qd7 19.Rfb1 Bc6 20.Nc3 (20.Ra6!? d5 21.Qc2 Ba4 22.Qa4 Qa4 23.Ra4 de4 24.de4+/-) 20...0-0 21.Ra6 Rb8 (21...d5 22.Qb3+=) 22.Rab6 (22.Rb8!? Rb8 23.Rc6 Qc6 24.e5+/-) 22...Rb6 23.Rb6 Ra8 24.Rc6 Qc6 25.e5 d5 26.ef6 Bf6 (26...dc4?? 27.Bc6 Bf6 28.Ba8 Bc3 29.dc4+-) 27.Qb3 (better is 27.Nd5!? ed5 28.Bd5+/-) 27...Qa6= 28.Nb1 h6 29.Qc2 Rc8 30.a4 Ra8 31.Bc1 (31.Qc5 Qd3 32.Qb5 Qb5 33.ab5 Ra1=) 31...Qb7 (better is 31...Qa4 32.Qc5 Qb3-/+) 32.Na3 Qb4 33.Nb5 (better is 33.Bd1+=) 33...Be7 (better is 33...Ra4 34.Nd6 Ra6-/+) 34.Bd2 (34.Bd2 Qa4 35.Qa4 Ra4 36.Bc3-/+) 1–0. Zambrano – Echeverry Ramirez, Pan American–ch U16 Girls, 2006. (=1.e4 c5 2.b4 b6 3.bc5+= bc5 4.Nf3 Nc6)

5.Bc4 e6

6.0-0 Rb8 7.Nc3 Nge7 8.Re1 Ng6 9.e5 f6 10.ef6 gf6 11.d3 Kf7 12.Bd2 Rg8 13.Qe2 a6 14.Rab1 Rb1 15.Rb1 Qc7 16.Kh1 Nf4 17.Bf4 Qf4+= 18.g3 Qg4 19.Qe4 Qe4 20.de4 Na5 21.Be2 Be7 22.Nd2 Rd8 23.Rb6 Nc6 24.a3 Nd4 25.Bd3 d5 26.ed5 ed5 27.Bh7 c4 28.Ncb1? Bc5 29.Rb8 Nc6 30.Rb2 Kg7 31.Kg2 Kh7 32.c3 Re8 33.Nf3 Ne5 34.Re2 Bg4 35.Nbd2 Rb8 36.h3 Bf3 37.Nf3 Nf3 38.Kf3 Rb3 39.Re6 Rc3 40.Kg4 Ra3 41.Rf6 c3 (41...c3 42.Rc6 Bf2-+) 0–1. Bohley,Donald – Braak,Dairen, Lansing–ch MI op, 1987.

6.0-0 d6 7.c3 Nf6 8.d4 Be7 9.Qe2 0-0 10.e5 Nd5 11.Qe4 cd4 12.cd4 Ncb4 13.Bd2 Ba6 14.Ba6 Na6 15.Nc3 Ndb4 (better 15...de5 16.de5 Nc5=) 16.Nd5?? (better 16.a3 Nd5 17.Nd5 ed5 18.Qd5 de5 19.Qc6+-) 16...Nd5-+ (16...ed5?! 17.Qe2 de5 18.a3-+) 17.Rab1 Qd7 18.Ng5 (18.Qg4 Rfb8-+) 18...Bg5 19.Bg5 Rfb8 0–1. Gurkin,Anton (2175) – Fedorov,Alexei (2615), Moscow Open A, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.0-0 d6 7.Nc3 Nf6 8.d4 cd4 9.Nd4 Nd4 10.Qd4 Be7 11.Ba3 0-0 12.Rad1 Qa5 13.Nb5 (13.Rd3 Rd8=) 13...a6 14.Bd6 ab5 15.Be7 bc4 16.Bf8 Kf8 17.Qc4? (better is 17.Qd6 Ke8 18.Rd4=) 17...Ba6-+ 18.Qd4 Bf1 19.Kf1 Qa2 20.e5 Ne8 21.c4 Rc8 22.c5 (22.Rc1 Qa3 23.Re1 Qc5-+) 22…Qc2 0–1. Kravtsiv,Martyn (2450) – Tishin,Dmitry (2375), UKR games U16 B2 2nd, 2004. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.0-0 Nge7 7.d4 cd4 8.Nd4 Nd4 9.Qd4 Nc6 10.Qe3 Be7 11.Bb2 0-0 12.Qg3 Bf6 13.e5 Be7 14.Nd2 f6 15.Ne4 (better is 15.ef6!? Bf6 16.Bf6 Qf6 17.Ne4+=) 15...fe5+= (worse is 15...Ne5 16.Nf6 (worse is 16.Be5 fe5 17.Qe5 d5+=) 16...Bf6 17.Be5=) 16.Be5 Ne5 17.Qe5 Re8 (better is 17...d5 18.Rad1 Rf7+=) 18.Rad1+/- Bf6 19.Qh5 Qe7 20.Nd6 Rf8 21.Rfe1 g6 22.Qf3 Bd4 23.Qa8 Qd6 24.Kh1 Qb6 25.Qe4 Bf2 26.Re2 Qc7 27.Bb3 Bc5 28.h3 Rf4 29.Qe5 Qe5 30.Re5 Bb6 31.a4 Rf2?? 32.a5+- Bd8 33.Be6! Kg7 34.Kg1 Bh4 35.Rc5 Rf8 36.Rc8! Rc8 37.Rd7 Kf6 38.Rh7 Ke6+/- 39.Rh4 Rc5 40.Ra4 Rc2 41.Kh2 Rc5 42.h4 a6 43.g4 Kf6 44.Kg3 Rd5 45.Kf4 White prepares the advance g5 45...Rc5 46.g5 Kg7 47.Kg4 Rb5 48.h5 gh5 49.Kh5 Rc5 50.Rb4 Ra5 51.Rb7 Kg8 52.Kh6 Rb5 53.Ra7+- Rb6 54.g6 Rb8 55.Ra6 Rc8 56.Ra7 ½–½. Fitzpatrick,A (2020) – Wang,O (1940), Oceania Zonal, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.0-0 Nf6 7.e5 Ng4 8.Re1 d5 9.ed6 Qd6 10.h3 Nf6 11.Na3 Be7 12.Bb5 Bd7 13.Nc4 Qc7 14.Bc6 Bc6 15.Bb2 0-0 16.Be5 Qd7 17.Rb1 Bd5 18.Bf6 Bf6 19.Nfe5 ½–½. Lorenzen,Sven – Plewka,Manfred, Schleswig Holstein–chE, 1990.

6.Nc3 Rb8 7.0-0 Nge7 8.d3 d5 9.ed5 ed5 (9...Nd5!? 10.Bd2 Nc3 11.Bc3 Nd4+=) 10.Bb5 d4 11.Bc6?? (better 11.Re1 Be6 12.Ne5 Rb5 13.Nc6 Nc6 14.Nb5+-) 11...Nc6= 12.Re1 Be7 13.Ne4 0-0 14.Ba3 Qa5 15.Qc1 h6 16.c3 f5 17.Ng3? (better 17.Ned2 Qc3 18.Nb3=) 17...dc3-+ 18.Ne5 (18.d4 Rd8 19.Ne2 c2 20.Bc5 Bc5 21.Qc2 Bb4 (21...Nd4?! 22.Nfd4 Bd4 23.Nd4 Rd4 24.Re8 Kh7 25.Rc8 Rc8 26.Qc8=+) 22.Qc6 Be1 23.Re1 Rb6 24.Qc4 Be6-+) 18...Ne5 19.Re5 Bg5 20.Rc5 Qc5 (20...Bc1?! 21.Ra5 Ba3 22.Ra3-+) 21.Bc5 Bc1 22.Bf8 (22.Rc1 Rd8 23.Ne2 Rd3-+) 22...Bb2 (22...Bf4 23.Ne2 c2 24.Rf1-+) 23.Bd6 Rb6 24.Bc5 (24.Re1 Ba6 25.Nf5-+) 24...Ba1 25.Bb6 ab6 0–1. Alsulaymi,Abdullah M (1830) – Gabrielian,A (2495), World Blitz, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.Nc3 Be7 7.Qe2 Rb8 8.0-0 d6 9.e5 d5 10.Bb5 Bd7 11.Bc6 Bc6 12.d4 c4 13.Bf4 Ba3 14.Rab1 Bb4 15.Bd2 Ne7 16.a3 Ba3 17.Ra1 Bb2 18.Ra7 0-0 19.Nd1+= c3 20.Nb2 cb2 21.Rb1 Bb5 22.Qe1 Bc4 23.Bc3 Nc6=+ 24.Ra4 Qd7 25.Ra3 Qe7 26.Ra4 Qd7 27.Ra3 Qe7 ½–½. Kondou,E (2180) – Papadopoulou,V (2245), ch–GRE w Aspropyrgos GRE (3), 2003.

6.Nc3 Nf6 7.d3 Be7 8.0-0 0-0 9.Bf4 d6 10.Rb1 Nd7 11.Ne2 (11.Qd2!?+=) 11...Nb6= 12.Bb5 Bb7 13.Ng3 a6 14.Bc6 Bc6 15.d4 Na4 16.Qd2 Bb5 17.Rfd1 (17.dc5!? dc5 18.Rfe1=) 17...cd4=+ 18.Nd4 e5 19.Nb5? (better 19.Rb5 ab5 20.Nc6-/+) 19...ef4-+ (19...ab5?! 20.Be3 Qc7 21.Ne2= (worse 21.Rb5 Nc3 22.Rc5 dc5 23.Qc3 Rfd8 24.Rd8 Qd8-+)) 20.Nf5 ab5 21.Rb5 (21.Qf4 Qc7 22.Qd2 Rfc8-+) 21...Bf6 22.Rb7 (22.Rd5 Nc3 23.Rd6 Nd1-+) 22...Nc5 (22...Nc3!? 23.Re1-+) 23.Rb4 Ra2 24.Qf4 Rc2 25.Rd6 (25.Qg4 Qc7-+) 25...Qd6! 26.Nd6 (26.Qd6 Rc1 Mate attack; 26.Nd6 Nd3 Combination) 26...Nd3 27.Qe3 Rc1 (better 27...Nb4!? 28.g3 Nc6 29.Qd3-+) 28.Qc1 Nc1 29.g3 Be7 30.Rb6 g6 (30...Rd8 31.Nc4-+) 31.f4 (31.Kf1 f6-+) 31...Rd8 32.Nc4 0–1. Alsulaymi,Abdullah M (1830) – Levin,Ev (2515), World Rapid, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.e5 d5 7.Bb5 Bd7 8.c4 Nge7 9.Nc3 d4 10.Ne4 Ng6 11.Qe2 Nf4 12.Qd1 (12.Qf1 Nb4 13.Kd1 Bb5 14.cb5 Qd5-+) 12...Nd3 13.Kf1 Nce5 14.Ne5 Ne5 15.Qa4 a6! 16.Bd7 (16.Ba6 Ba4) 16...Qd7 17.Qa5?? (better is 17.Qb3-+) 17…Nc4 (17...Nc4 18.Nc5 Na5 19.Nd7 Kd7-+) 0–1. Faccia,Sergio (2035) – Vivo,Mario (2165), Bratto op, 2006. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 Nc6 5.Bc4 e6)

6.e5 d5 7.ed6 Bd6 8.Nc3 Nf6 9.0-0 0-0 10.Ba3 Nb4 11.Nb5 Be7 12.Ne5 Bb7 13.d3?? a6-+ 14.Nc3 Qd4 (14...Qd4 15.Nf7 Qc3 16.Bb4 cb4-+ (16...Qb4?! 17.Nh6 gh6 18.Be6 Kh8 19.Rb1-/+)) 0–1. giveaway (2375) – bumeyou (2180), net–chess.com, 2008.

4.Nf3 d6

5.Bb5 Bd7 6.c4 Nc6= 7.0-0 e6 (7...Nf6 8.Nc3+=) 8.d4 (8.Nc3 Nf6+=) 8...cd4 9.Nd4 Qc7 (9...Nge7 10.Nc3+=) 10.Be3 (10.Nc3 Nf6+=) 10...Nf6+= 11.Nc6 Bc6 12.Qa4 Bd7 13.Nd2 (13.Nc3 Be7+=) 13...Be7= 14.Bg5 h6 15.Bf6 Bf6 (worse is 15...gf6 16.Rab1+/-) 16.Rac1 Rd8 17.c5 dc5 18.Nb3 Bb5 (18...0-0 19.Rc5 Bb5 20.Qb5= (20.Rc7?? Ba4 21.Ra7 Ra8 22.Ra8 Ra8-+)) 19.Qb5+= Qd7 20.Qc5 Qe7 21.Qb5 Qd7 22.Qc5 Qe7 23.e5 (23.Qa5 Qd6+=) 23...Qc5= 24.Rc5 Be7 25.Rc7 Rd7 26.Rfc1 Bd8 (26...Bg5 27.Rd7 Kd7 28.Rc4=) 27.Rd7 Kd7 28.Nc5 Ke7 (28...Ke8!?=) 29.Rd1+/- Bb6 30.Rd7 Ke8 31.Rb7 Rh7 32.Ne4 h5? (better is 32...Kf8+/-) 33.Nd6+- Kf8 34.Rb8 (better is 34.Rf7 Kg8 35.Re7+-) 34...Ke7 35.Rb7 Kf8 36.Rf7 Kg8 37.Re7 g5 38.Re8 Kg7 39.Re6 Rh8 40.Nf5 Kf8 41.Rf6 Ke8 42.e6 Bc5 43.Kf1 Rg8 44.Rf7 Rf8 45.Ng7 Kd8 46.e7! Be7 47.Rf8 Bf8 48.Ne6 Ke7 49.Nf8 Kf8 50.Ke2 Ke7 51.Ke3 Ke6 52.a4 a5 53.h3 Kf6 54.g4 hg4 55.hg4 Ke6 56.f4 gf4 57.Kf4 Kf6 58.Ke4 Kg5 59.Kd5 Kg4= 60.Kc5 Kf5 61.Kb6 Ke6 62.Ka5 Kd7 ½–½. Sieber,Martin (2035) – Didi,Jan (2080), CZE–ChT1E, 2010. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Nc3 e6 6.Rb1 Nf6 7.e5 Nd5 8.Nd5 ed5 9.Bb5 Bd7 10.Qe2 Qe7 11.0-0 Kd8 12.d4 h6 13.Rd1 c4 14.Ba3 Qe6 15.Qd2 a5 16.Re1 Qf5 17.ed6 f6 18.Qe3 Nc6 19.Bc5 g5 (19...Kc8 20.Rb2+-) 20.Ba4 (better is 20.Bc6 Bc6 21.Rb7 Bd6 22.Bd6 Qe4+-) 20...Kc8 21.Bc6 Bc6 22.Qe6 Qe6 23.Re6 Ba4 24.c3 1–0. Bortnik,Alexandr (2345) – Dragun,Kamil (2280), Wch U14 Kemer, 2009. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Bc4 Nc6 6.Nc3 Rb8 7.0-0 g6 8.d4 Bg7 9.Be3 Bg4 10.Bf7 Kf8 11.Nd5?? Nf6?? 12.Nf6+- ef6 13.Bd5 Ne7 14.Bb3 Qc8 15.dc5 dc5 16.Qd6 c4 17.Bc4! Rb7 18.Ba6 Qd7 19.Qa3 Rc7 20.Rad1 Qc6 21.Bf4 Rd7 22.Rd7 Qd7 23.Bd6 Bf3 24.gf3 f5 25.e5 Qe6 26.Qc5 Bh6 27.Bc4 Qd7 28.Rb1 Bg5 29.Qd5 Kg7 30.Qf7 Kh6 31.Be6 Qc6 32.Be7 Qf3 33.Bg5 Kg5 34.Bd5 Qg4 35.Bg2 Qe2 36.Qf6 Kg4 37.Rb4 Qe4 38.Be4 f4 39.Bf3! Kf3 40.Qf4 Ke2 41.Qe4 Kd2 42.Qd3 Kc1 43.Kf1 Re8 44.c4 Rb8 45.Rb8 (45.Rb8 h6 46.Rb1) 1–0. Revol,Olivier – Piantoni,Noe, Rhone Open Lyon FRA (7), 2003.

5.Bc4 e6 6.0-0 Bb7 7.Nc3 a6 8.Rb1 Qc7 9.Re1 Nd7 10.d4 Be7 (10...cd4 11.Qd4 Be7 A) 12.Qg7? Bf6 13.Qg3 Bc3-+ (13...Qc4?! 14.Rb7 0-0-0 15.Rd7 Rd7 16.Nd1=+); B) 12.Be3+=) 11.Bg5 h6 12.Be3 cd4 13.Bd4 Ngf6 14.Bd3 0-0 15.Na4 e5 16.Bb2 Rab8 17.c4 Bc6 18.Nc3 Nc5 The pressure on e4 grows 19.Ba3 Qa5 20.Bc5 Qc3 21.Ba7 Ra8 (21...Rb2!?=) 22.Bb6+= Qa3 23.Qd2 Nd7 24.Rb3 Qa4 25.Qc3 Bb7 26.Reb1 Qc6 27.Nd2 Rfb8 (27...Nb6?? 28.Rb6 Qc5 29.Rb7+-) 28.Nf1 Bc8 29.Qa5 Nb6 30.Rb6 Rb6 31.Rb6 Qc7 32.Ne3 Be6 The isolani on c4 becomes a target 33.Nd5 Bd5 34.Qd5 Exerts pressure on the backward pawn (34.cd5? Bd8 35.Qa6 Ra6 36.Ra6 Be7 37.Ra8 Kh7-+; 34.ed5 e4 35.Be4 Bd8-/+ (worse 35...Qc4 36.Qe1=+)) 34...Qb6 35.Qa8 Bf8 36.c5 dc5 37.Qa6 (worse 37.Ba6 Qa5 38.g3 Qa2-/+) 37...Qa6 38.Ba6 Bd6 39.Kf1 Kf8 40.Ke2 Ke7 41.Kd3 Bb8 42.Bb7 Kd6 43.Kc4 f6 44.f3 Ba7 45.a4 Bb6 46.Kb5 Kc7 47.Ba8 Ba7 48.a5 c4 49.Kc4 Kd6 50.Kb5 Kc7 51.Bd5 Bd4 52.a6 Ba7 53.g3 Bg1 54.h4 Bf2 55.h5 Ba7 56.f4 Be3 57.Bc6 Ba7 58.fe5 fe5 59.Bd5 Kd6 60.Kc4 Bg1 ½–½. Cibej,Marjan (2000) – Kersic,M (2165), TCh–SLO Div (9), 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Bc4 e6 6.0-0 Nc6 7.c3 Nf6 8.d4 d5 9.ed5 Nd5 10.Bb5 Bd7 11.c4 Nc7 12.d5 (better is 12.Bc6 Bc6 13.Ne5+/-) 12...ed5= 13.Bc6 Bc6 14.Ne5 Qd6 15.Re1 Be7 16.Bf4 d4 17.Bg3 (worse is 17.Nc6 Qc6 18.Bg5 f6+=) 17...Qf6 (17...Qe6!? 18.Nd3 Qc8 19.Nc5 Qd8+/-) 18.Ng4+- (18.Nc6 Qc6 19.Bh4 Ne6 20.Be7 Ke7+=) 18...Qg6 19.Ne5 ½–½. Pauling,Markus (2235) – Wolf,Ulrich (2115), Ruhrgebiet VK2, 2008. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Bc4 e6 6.0-0 Nf6 7.Qe2 Be7 8.e5 de5 9.Ne5 Bb7 10.Nc3 0-0 11.Rb1 Qc7 12.Nf7 Nd5?? (better 12...Kf7 13.Qe6 Ke8+-) 13.Qe6+- Rf7 (13...Qf4 14.Rb7 Nb6 15.Nd6 Kh8 16.Qe7+-) 14.Nd5 Qd8 15.Ne7 Qe7 16.Qe7 (16.Qe7 Nc6 17.Qf7 Kh8 18.Rb7 Ne7 19.Re7 Re8 20.Qe8) 1–0. juliangon – delightful_porridge, ChessWorld.net, 2020. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Bc4 e6 6.Nc3 g6 7.0-0 Bg7 8.Rb1 Ne7 9.Bb2 Nbc6 10.Ne2 Bb2 11.Rb2 Na5 12.Bb5 Bd7 13.d4 Bb5 14.Rb5 cd4 15.Qd4 0-0 16.Rd1 d5 17.Qe3 Kg7?? 18.Qc3+- Kg8 19.Qa5 Qc8 20.Rc5 Qb7 21.Rc7 Nc6 22.Rb7 Na5 23.Rb5 de4 24.Ne5 (24.Ne5 Rfd8 25.Rdb1+-; 24.Ra5?! ef3 25.gf3 Rfd8 26.Rd8 Rd8 27.Ra7 Rd2+-) 1–0. Bohley,Donald – Halstead,Kevin, Lansing–ch MI op, 1987.

5.Bc4 e6 6.Qe2 Nc6 7.0-0 Nf6 8.c3 Be7 9.e5 de5 10.Ne5 Ne5 11.Qe5 0-0 12.d3 Bd6 13.Qe2 Qc7 14.f4 Bb7 15.Na3 a6 16.Bd2 Nd5 17.Rab1 Bc6 18.Bb3? Nf4-+ 19.Bf4 Bf4 20.Rf4 Qf4 21.Rf1 Qc7 22.Nc2 Rad8 23.Ne1 Bd5 24.Bc2 c4 25.d4 Rb8 26.Nf3 Bf3 27.Qf3 Rb2 28.Rf2 Rfb8 29.g4 Qb7 30.Qe2 g6 31.Qe3 Rc2! 32.Rc2 Qb1 33.Rc1 Qa2 34.Rf1 Rb1 35.Qf4 Rf1 36.Qf1 Qb3 37.Qf3 Qb5 38.Kf2 a5 39.Qa8 Kg7 40.Kg3 a4 41.h4 h6 42.Kf4 g5 43.Kg3 gh4 44.Kh3 Qb2 45.Qa5 Qf2 46.Qe5 f6 47.Qc7 Kg6 48.Qb8 Qg3! (48...Qg3 49.Qg3 hg3 50.Kg3 a3-+) 0–1. Lewandowski,Miroslaw (2130) – Kanarkiewicz,Michal (1800), Gdansk ch Poland, 2009.

5.d4 cd4 6.Nd4 Bd7 7.Bc4 Nf6 8.0-0 Ne4?? (better 8...Nc6+=) 9.Bd5+- Na6 10.Be4 Rb8 (10...e5 11.Bb7+-) 11.Nc6 Qc7 12.Nb8 Nb8 13.Bb2 e6 (13...Na6 14.Re1+-) 14.Re1 Nc6 (14...Na6 15.Nc3+-) 15.Nd2 e5 16.Nc4 Be7 17.Ne3 Be6 18.Qd3 g6 (18...Qb6 19.Ba3+-) 19.Qc3 (better 19.Nd5 Qd7+-) 19...0-0 (19...Bd7 20.f4! Qb6 21.Kh1+-) 20.Qc6 Qc6 21.Bc6 1–0. bulent_2010 – dash _ mate, ChessWorld.net, 2015. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6)

5.Bc4 Nf6

6.0-0 A) 6...Nc6 A1) 7.Re1 Rb8 (7...Bg4 8.Bb5 Qc7 9.h3 Bh5 10.Nc3 a6 11.Ba4 Kd8 12.g4 Bg6+=; 7...e6 8.Nc3 Rb8 9.Bb5 Bd7 10.Rb1 Be7 11.d4 cd4 12.Nd4 Nd4=; 7...Bd7 8.c3 Na5 9.Bf1 Rb8 10.d4 cd4 11.cd4 e6 12.Bf4 Be7+=) 8.Nc3 e6 9.Bb5 Bd7 10.Rb1 Be7 11.d4 cd4 12.Nd4 Nd4=; A2) 7.d3 Rb8 (7...e6 8.Nc3 Rb8 9.Bb5 Bd7 10.Rb1 Be7 11.Be3 0-0 12.Qd2 d5=; 7...Bg4 8.Bb5 Qb6 9.Nc3 Kd8 10.Bc6 Qc6 11.h3 Bh5 12.Rb1 e6+=; 7...Bd7 8.Nbd2 Rb8 9.Rb1 Rb1 10.Nb1 Na5 11.Na3 Nc4 12.Nc4 e5+=) 8.Nc3 e6 9.Be3 Be7 10.Bb5 Qc7 11.Rb1 0-0 12.Qd2 Bb7=; A3) 7.Na3 e6 (7...Rb8 8.d3 e6 9.Bb5 Bd7 10.Rb1 Be7 11.Bf4 0-0 12.Qd2 Qc7=; 7...Bg4 8.h3 Bd7 9.d3 Rb8 10.Rb1 Rb1 11.Nb1 Na5 12.Nbd2 e6=; 7...Qd7 8.d3 Rb8 9.Re1 e6 10.Bf4 e5 11.Bg5 Be7 12.c3 h6=) 8.d3 Be7 9.Rb1 0-0 10.Re1 a6 11.Bf4 d5 12.ed5 ed5+=; A4) 7.Nc3 Rb8 (7...e6 8.Rb1 Be7 9.d4 cd4 10.Nd4 Bd7 11.Ndb5 Rc8 12.Be2 Qa5+=; 7...Nd4 8.Nb5 Nb5 9.Bb5 Bd7 10.Bd7 Qd7 11.d3 e6 12.Bb2 Be7+=) 8.Bb5 Bd7 9.Rb1 a6 10.Bc6 Bc6 11.Rb8 Qb8 12.Qe2 Qc8+=; B) 6...Ba6 B1) 7.Be2 e6 (7...Bb7 8.d3 Nc6 9.Nc3 Rb8 10.Rb1 e6 11.d4 cd4 12.Nd4 Ne5+=; 7...Be2 8.Qe2 Nbd7 9.Nc3 Rb8 10.d3 e6 11.Bf4 Qa5 12.Qd2 Be7+=; 7...g6 8.Nc3 Bg7 9.Rb1 Be2 10.Qe2 Nc6 11.Bb2 Rb8 12.Ba1 Rb1+=) 8.d3 Be7 9.Nc3 0-0 10.Rb1 Nc6 11.Bf4 Qc7 12.a4 Rfb8=; B2) 7.Qe2 Bc4 8.Qc4 d5 9.ed5 Qd5 10.Qe2 e6 11.Nc3 Qf5 12.d3 Nc6+=; B3) 7.Ba6 Na6 8.d3 e6 9.c3 Qa5 10.Nfd2 Be7 11.Nc4 Qb5 12.e5 de5+/-; C) 6...e6 C1) 7.d3 Nc6 (7...d5 8.ed5 ed5 9.Bb5 Bd7 10.Re1 Be7 11.Bd7 Qd7 12.Ne5 Qd8+=; 7...Nbd7 8.Nc3 Rb8 9.Bf4 Be7 10.e5 Nh5 11.ed6 Nf4 12.de7 Qe7+=; 7...Be7 8.Nc3 0-0 9.Re1 Nbd7 10.Rb1 Nb6 11.Bb5 Bb7 12.d4 Rc8=) 8.Nc3 Rb8 9.Bb5 Bd7 10.Rb1 Be7 11.Re1 0-0 12.Bc6 Bc6=; C2) 7.Re1 Nc6 (7...Be7 8.e5 de5 9.Ne5 Bb7 10.Nc3 Nbd7 11.Nd7 Qd7 12.Rb1 0-0=; 7...Nbd7 8.d4 Rb8 9.c3 Qc7 10.d5 Nb6 11.Bb5 Bd7 12.a4 Be7=; 7...Ba6 8.Na3 Bc4 9.Nc4 Be7 10.Rb1 0-0 11.Bb2 Nc6 12.d3 Rb8=) 8.Nc3 Be7 9.Rb1 0-0 10.a3 a6 11.d4 d5 12.ed5 ed5=; C3) 7.Qe2 Nc6 (7...Nbd7 8.Nc3 Rb8 9.d4 cd4 10.Nd4 Qa5 11.Bd2 Qc5 12.Nf3 Be7+=; 7...Be7 8.Nc3 Nc6 9.Rb1 0-0 10.Re1 a6 11.a4 Qc7 12.Bb2 Bb7=; 7...Bb7 8.Nc3 Nc6 9.Rb1 Rb8 10.Ba6 Ba6 11.Qa6 Nb4 12.Qa3 Qd7=) 8.Bb2 Rb8 9.Bb5 Bd7 10.Na3 Be7 11.Rab1 0-0 12.Rfe1 e5=; C4) 7.Nc3 a6 (7...Ba6 8.Ba6 Na6 9.Qe2 Nb4 10.d3 Be7 11.Rb1 0-0 12.Bf4 d5+=; 7...Nbd7 8.Rb1 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...Be7 8.e5 de5 9.Ne5 Ba6 10.Qf3 Bc4 11.Nc4 Nbd7 12.Re1 0-0+=) 8.Re1 Nc6 9.Bb2 Be7 10.Rb1 0-0 11.e5 de5 12.Ne5 Ne5=; D) 6...Nbd7 D1) 7.Nc3 Rb8 (7...e6 8.Rb1 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...Nb6 8.Bb5 Bd7 9.a4 e6 10.d3 Be7 11.e5 de5 12.Ne5 0-0+=) 8.Re1 e6 9.d3 Be7 10.Bf4 0-0 11.Nb5 e5 12.Na7 ef4=; D2) 7.d3 e6 (7...Rb8 8.c3 e6 9.Qa4 Qc7 10.Bf4 e5 11.Bg5 Be7 12.Na3 0-0+=; 7...a6 8.Nbd2 e6 9.Re1 Be7 10.Rb1 d5 11.Bb3 0-0 12.Qe2 d4=; 7...Nb6 8.Bb5 Bd7 9.Bd7 Qd7 10.Bg5 e6 11.Nc3 Be7 12.a4 a5=) 8.Nbd2 Rb8 9.Rb1 Rb1 10.Nb1 Be7 11.Nc3 0-0 12.Re1 Nb6=; D3) 7.Na3 e6 (7...Rb8 8.Re1 e6 9.Rb1 Rb1 10.Nb1 Be7 11.d4 d5 12.ed5 ed5=; 7...g6 8.Ng5 e6 9.Bb2 Rb8 10.Rb1 Bg7 11.Nb5 Qb6 12.d4 0-0+=; 7...Nb6 8.Bb5 Bd7 9.d3 e6 10.Bd7 Qd7 11.Rb1 Be7 12.e5 de5=) 8.Re1 Rb8 9.d3 Be7 10.Nb5 a6 11.Nc3 0-0 12.Bf4 Qc7=; D4) 7.Re1 Rb8 (7...e6 8.Nc3 Rb8 9.a3 Be7 10.Qe2 0-0 11.d3 Ng4 12.Rb1 Rb1=; 7...Nb6 8.Bb5 Bd7 9.Bd7 Qd7 10.Nc3 e6 11.a4 a5 12.d3 Be7+=; 7...Qc7 8.Nc3 Rb8 9.d3 a6 10.Nd5 Nd5 11.ed5 Nb6 12.Bb3 Bg4+=) 8.Nc3 e6 9.a3 Be7 10.d3 0-0 11.Bf4 e5 12.Be3 Nb6=.

6.Bb2 Ne4 A) 7.Nc3 Nc3 (7...Nf6 8.Nd5 Nbd7 9.Rb1 Nd5 10.Bd5 Rb8 11.0-0 e5 12.c4 Be7+=) 8.Bc3 e6 9.Qe2 d5 10.Ne5 a6 11.Rb1 Be7 12.Qf3 0-0+=; B) 7.Bd5 Qb6 8.Be4 Bb7 9.Bb7 Qb7 10.Qc1 Nd7 11.0-0 Rb8 12.Bc3 e5+-.

6.Nc3 a6 7.0-0 Ne4 8.Ne4 d5 9.Bd5 (9.Nc5?! dc4 10.Re1 Nc6+=) 9...Qd5 10.Re1 e6 11.Bb2 Nd7 12.d3 Rb8 13.c4 Qh5 14.Rb1 Qh6 15.Qa4 Rb4 16.Qc6 Bb7 17.Qc7 Be7 18.Bg7 (better is 18.Bc1 Rb1 19.Bh6 Re1 20.Ne1 Be4 21.Qc8 Bd8 22.Bg7+-) 18...Qg7+/- 19.Rb4 Be4 20.Rb8! Nb8 1–0. Bomfim,Allan Rodrigo – Mcnally,Tony, SL.2005.0., 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6 5.Bc4 Nf6)

6.Nc3 Ba6 7.Bb3 (7.Ba6 Na6 8.Rb1 e6 9.0-0 Be7 10.Qe2 Nb4 11.d4 Qc8 12.e5 de5+=; 7.Be2 e6 (7...Be2 8.Qe2 e6 9.Rb1 Nc6 10.0-0 Be7 11.Qa6 Qc8 12.Qc4 0-0=; 7...g6 8.Rb1 Be2 9.Qe2 Bg7 10.Bb2 Nc6 11.0-0 Rb8 12.Ba1 Rb1+=; 7...d5 8.ed5 Nd5 9.Nd5 Qd5 10.c4 Qd6 11.Rb1 Bc8 12.d4 Bf5+/-) 8.0-0 Be2 9.Qe2 Nc6 10.Bb2 Be7 11.Rfb1 0-0 12.a3 Rb8=; 7.Qe2 Bc4 8.Qc4 e6 9.0-0 Be7 10.d4 cd4 11.Nd4 Nbd7 12.Bb2 Qc8=) 7...Nc6 (7...e6 8.Rb1 Be7 9.Ba4 Nbd7 10.e5 de5 11.Ne5 Qc7 12.Nd7 Nd7=; 7...Nbd7 8.Bb2 e6 9.Rb1 Be7 10.d3 0-0 11.0-0 Rb8 12.Re1 Bb7=) 8.d3 (8.Ba4 Rc8 9.Rb1 e6 10.d3 Be7 11.e5 Nd5 12.Nd5 ed5+=) 8...g6 (8...e6 9.Ba4 Bb7 10.Rb1 Qd7 11.0-0 Be7 12.e5 Ng4+=) 9.Ba4 Rc8 10.e5 Nd7 11.ed6 ed6 (11...Bg7 12.Bd2 ed6+=) 12.0-0 (12.Qe2 Qe7+/-) 12...Bg7 13.Re1 Nde5 14.Ne5 de5 15.Qf3 Bb7 16.Ne4 0-0 17.Bg5 f6 18.Nc5 Ba8 (18...fg5 19.Nb7 Qb6 20.Reb1 Rf3 21.Rb6 ab6 22.gf3=) 19.Ne6 Nd4 20.Qg4 (20.Nd8 Bf3 (20...Nf3?! 21.gf3 Rfd8 22.Be3=) 21.Ne6 Ne6-/+ (21...fg5?! 22.Nf8 Kf8 23.gf3=)) 20...Ne6 21.Qe6 Kh8 22.Be3 Bd5 23.Qh3 Qd6 24.Bb3 a6 25.c4 Be6 26.c5 Bh3 27.cd6 Bd7 28.Rac1 Bf5 29.Ba4 Rcd8 30.Bc5 Rf7 31.d4 Bf8 32.de5 fe5 33.Rcd1 Rf6 34.Re5 Bd6 35.Red5 (35.Red5 Bc5 36.Rd8 (36.Rc5?! Rd1 37.Bd1 Re6+=) 36...Kg7 37.Bb3+-) 1–0. Martinez,Julian (2215) – Martinez,Juan Cristobal (1680), Santander COL, Open, 2011. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6 5.Bc4 Nf6)

6.Nc3 Nc6 A) 7.0-0 e6 (7...Rb8 8.Bb5 Bd7 9.Rb1 e5 10.d3 Be7 11.Bc6 Bc6 12.Rb8 Qb8=; 7...Nd4 8.Nb5 Be6 9.Be6 Ne6 10.d3 Rb8 11.c4 a6 12.Nc3 Qd7+=) 8.Bb2 Be7 9.Bb5 Bd7 10.Rb1 Rb8 11.Qe2 0-0 12.a4 e5=; B) 7.Bb2 Nd4 (7...Rb8 8.Rb1 e6 9.0-0 Be7 10.d4 Qa5 11.Qd3 cd4 12.Nd4 Ne5=; 7...Bg4 8.Bb5 Bd7 9.Rb1 e5 10.0-0 Be7 11.Ng5 h6 12.Nf3 0-0=; 7...e6 8.Rb1 Rb8 9.0-0 Be7 10.d4 Qa5 11.Qd3 cd4 12.Nd4 Ne5=) 8.Nd5 e6 9.Nd4 ed5 10.Bb5 Bd7 11.Bd7 Qd7 12.Nb3 de4+=; C) 7.Rb1 Bd7 (7...e6 8.Bb2 Be7 9.d4 Rb8 10.d5 ed5 11.Nd5 Ne4 12.Bg7 Rb1+=; 7...Nd4 8.Nd4 cd4 9.Nd5 e6 10.Bb5 Bd7 11.Nf6 Qf6 12.Bd7 Kd7+=; 7...Bg4 8.Bb5 Bd7 9.0-0 e5 10.a3 Be7 11.d3 Rb8 12.Bg5 0-0+=) 8.Bb2 Nd4 9.Ng5 e6 10.0-0 Rb8 11.Re1 Be7 12.Ne2 Nc6=; D) 7.Bb5 Bd7 (7...Bb7 8.Rb1 e6 9.d3 Rb8 10.0-0 Qc7 11.Bf4 a6 12.e5 d5+=) 8.Rb1 Rb8 9.d3 e6 10.0-0 Be7 11.Be3 0-0 12.Qd2 d5=.

6.Nc3 Nbd7 A) 7.Bb2 a6 (7...Rb8 8.Rb1 e6 9.0-0 Be7 10.a3 0-0 11.Qe2 Nb6 12.Bb5 e5=; 7...Nb6 8.Bb5 Bd7 9.d3 Rb8 10.Rb1 e5 11.0-0 Be7 12.Bd7 Qd7+=; 7...e6 8.0-0 Rb8 9.Rb1 Be7 10.Re1 0-0 11.a4 Nb6 12.Bb5 e5=) 8.0-0 Rb8 9.Rb1 Nb6 10.Bd3 Qc7 11.Re1 e5 12.Bc1 Bb7=; B) 7.0-0 Rb8 (7...a6 8.Rb1 Nb6 9.Be2 e5 10.Bb2 Be7 11.Ne1 0-0 12.f4 Rb8=; 7...e6 8.Rb1 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...Nb6 8.Bb5 Bd7 9.Rb1 e6 10.Bd7 Qd7 11.Re1 Be7 12.e5 Ng4+=) 8.Re1 e6 9.d3 Be7 10.Bf4 0-0 11.e5 Nh5 12.ed6 Nf4=; C) 7.Rb1 a6 (7...e6 8.0-0 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...Nb6 8.Bb5 Bd7 9.a4 e6 10.0-0 Be7 11.Re1 0-0 12.Qe2 Rb8+=; 7...g6 8.Ng5 Ne5 9.Bb5 Nfd7 10.f4 a6 11.fe5 ab5 12.e6 Ne5+/- 1.22) 8.0-0 Nb6 9.Be2 e5 10.d3 Be7 11.a4 a5 12.Ra1 0-0=; D) 7.d3 e6 (7...Rb8 8.0-0 e6 9.Bf4 Be7 10.e5 Nh5 11.ed6 Nf4 12.de7 Qe7+=; 7...a6 8.Rb1 e6 9.0-0 Be7 10.d4 0-0 11.e5 Ne8 12.Re1 d5+=; 7...g6 8.Ng5 Ne5 9.Bb5 Bd7 10.Bd7 Ned7 11.Rb1 Bg7 12.0-0 Rb8=) 8.Rb1 Be7 9.0-0 0-0 10.Re1 Nb6 11.Bb5 Bb7 12.d4 Rc8=.

6.Nc3 e6 A) 7.Rb1 Be7 (7...Nc6 8.0-0 Be7 9.d4 cd4 10.Nd4 Bd7 11.Be3 0-0 12.Qd2 Ng4=; 7...Nbd7 8.0-0 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...a6 8.0-0 d5 9.ed5 ed5 10.Bb3 Be7 11.Qe1 Qd6 12.Ba3 Be6=) 8.e5 de5 9.Ne5 Qc7 10.Qe2 Nbd7 11.f4 Ne5 12.fe5 Nd7=; B) 7.Bb2 Bb7 (7...a6 8.0-0 d5 9.ed5 ed5 10.Re1 Be7 11.Bb3 Ra7 12.d4 c4=; 7...Be7 8.0-0 0-0 9.Re1 Ba6 10.Ba6 Na6 11.Rb1 Rb8 12.a3 c4+=; 7...Nbd7 8.0-0 Be7 9.Rb1 0-0 10.Re1 Nb6 11.Bb5 e5 12.Qe2 Qc7=) 8.Qe2 Be7 9.0-0 0-0 10.Rfe1 Nc6 11.Rab1 Rb8 12.Nb5 a6=; C) 7.d3 Be7 (7...Ba6 8.Bb3 Be7 9.Rb1 0-0 10.Bf4 Nc6 11.0-0 Rb8 12.Re1 Nd4=; 7...Nbd7 8.Rb1 Be7 9.0-0 0-0 10.Re1 Nb6 11.Bb5 Bb7 12.Bf4 a6=; 7...Nc6 8.0-0 Be7 9.Rb1 0-0 10.Bf4 a6 11.e5 d5 12.Bb3 Nd7=) 8.0-0 0-0 9.Re1 Nbd7 10.Rb1 Nb6 11.Bb5 Bb7 12.d4 d5=; D) 7.0-0 Be7 (7...Ba6 8.Ba6 Na6 9.Qe2 Nb4 10.d3 Be7 11.Rb1 0-0 12.Bf4 d5+=; 7...Nbd7 8.Rb1 Be7 9.d4 0-0 10.e5 de5 11.de5 Nb6 12.ef6 Bf6+=; 7...Nc6 8.Rb1 Be7 9.d4 cd4 10.Nd4 Bd7 11.Ndb5 Rc8 12.Be2 Qa5+=) 8.e5 de5 9.Ne5 Ba6 10.Qf3 Bc4 11.Nc4 Nbd7 12.d3 Nb6+=.

6.Bb2 Ne4 A) 7.Nc3 Nc3 (7...Nf6 8.Nd5 Nbd7 9.Rb1 Nd5 10.Bd5 Rb8 11.0-0 e5 12.c4 Be7+=) 8.Bc3 e6 9.Qe2 d5 10.Ne5 a6 11.Rb1 Be7 12.Qf3 0-0+=; B) 7.Bd5 Qb6 8.Be4 Bb7 9.Bb7 Qb7 10.Qc1 Nd7 11.0-0 Rb8 12.Bc3 e5+- 2.09.

6.d4 cd4 7.Qd4 Nc6 8.Bb5 (8.Bf7!? Kf7 9.Qc4 e6 10.Qc6+=) 8...Bd7 9.Bc6 Bc6 10.e5 (better is 10.Nc3!?=) 10...de5-/+ 11.Qd8 Rd8 12.Ne5 Bg2 13.Rg1 Be4 14.c4 g6 15.Nc3 Bf5 16.Nb5 Rc8 (better is 16...Bg7 17.Bb2 Ng4 18.Ng4 Bb2-+) 17.Na7+= Rc5 18.Nec6 (better is 18.Bb2=) 18...Bg7 19.Ba3 (19.Be3 Rc4 20.Rd1 Nd7-/+) 19...Rc4-+ 20.Rd1 (better is 20.Rg3 Re4 21.Re3-+) 20...0-0?? (better is 20...Re4 21.Kf1 Bh3 22.Rg2 Nd7-+ (22...Bg2?! 23.Kg2 0-0 24.Ne7 Kh8 25.Nec8-+)) 21.Ne7+- Kh8 22.Ng6?? (better is 22.Nf5 Ra8 23.Nd6+-) 22...hg6-+ (worse is 22...Bg6 23.Bf8 Bf8 24.Nb5-+) 23.Bf8 Bf8 24.Rd8 (24.Nb5 Bb4 25.Ke2 Rc2 26.Kf3 Ra2-+) 24...Kg7 (24...Rc1!? 25.Ke2 Rg1 26.Rf8 Kg7 27.Rb8-+) 25.Nb5 Bd7 26.Na7?? (26.Rg5-+) 26...Rc1 27.Ke2 Rg1 28.a3 (28.Ra8 Rg2 29.Nc8 Bb5 30.Kd1 Ne4-+) 28...Ba3 29.f4 (29.f3 Rg2 30.Kd3 Rh2-+) 29...Rb1 (29...Bg4 30.Ke3 Bc5 31.Kd3 Ba7 32.Ra8 Rd1 33.Kc2-+) 30.h4 Rb7 31.Nc8 Rb8 0–1. Fisher_Kirsher,T – Huang,K, Dublin Library 7–11, 1992. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 d6 5.Bc4 Nf6)

6.d4 Ne4? 7.Bd5 Qa5 8.Bd2 Nd2 9.Nbd2 cd4 10.Ba8 +-.

3.d4 cd4

4.Nf3 Bb7 5.Bd3 (5.Qd4 Nc6 6.Qb2 d5+=) 5...Nf6 (5...e5 6.Ne5 Bb4 7.Bd2=+) 6.e5= Nd5 7.Be4 (worse 7.Nd4 Nb4 8.Bf1 N8c6-/+) 7...Qc7 8.Qd4 e6 9.a3 b5 (9...d6 10.ed6 Qd6 11.0-0=) 10.0-0 (10.Nc3 Nc3 11.Bb7 Qb7 12.Qc3 Be7=) 10...Be7 11.Bd3 (11.Qd3 a5+=) 11...Nc6= 12.Qe4 (12.Qb2 0-0=) 12...a6 13.Re1 f6 14.Bb2 (14.Qg4 g6=) 14...fe5=+ 15.Ne5 (worse 15.Be5 Ne5 16.Qe5 Bf6 17.Qc7 Nc7-/+) 15...Ne5 (15...Bf6 16.Ra2=+) 16.Be5= Bd6 17.Nc3 (17.Bd6!? Qd6 18.Nd2=) 17...Be5=+ 18.Nd5 Bd5 (18...Bh2!? 19.Kh1 Qd6 (worse 19...Bd5 20.Qd5 0-0 21.Qh5+-) 20.Nf6 gf6 21.Qb7 Rb8=+) 19.Qe5= Qe5 20.Re5 0-0 (20...d6 21.Ree1 Kd7 22.a4=) 21.a4 Bc6 (21...Rfb8=) 22.g3 (22.ab5!? ab5 23.Ra8 Ra8 24.f3+= (24.Bb5? Bb5 25.f3 Ra1 26.Kf2 d5-+)) 22...ba4=+ 23.f4 Rab8 (23...Rfc8 24.h3=+) 24.Rb1 (24.c3 Rb6=) 24...Rb6=+ 25.Ra5 Exerts pressure on the isolated pawn 25...Rfb8 26.c3 Bb5 27.Rd1 (better 27.c4!? Bc6 28.b5=) 27...d5-/+ 28.f5 Rc8 (better 28...ef5!? 29.Bc2 Rc8 30.Ba4 Ba4 (30...Rc3?! 31.Bb5 ab5 32.Rd5=) 31.Ra4 Rc3 32.Rd5 Rc4-/+) ½–½. Sokic,D (2205) – Pucovski,M (2275), Third Saturday, 2018. (=1.e4 c5 2.b4 b6)

4.Nf3 e6 5.b5 Bb7 6.Qd4 d5 7.e5 Bc5 8.Qg4+= g6 9.Bg5 Be7 10.Bd3 Bg5 11.Ng5 a6 12.Nc3 Nd7 13.0-0 Ne5=+ 14.Qf4 Qf6-/+ 15.Qe3? Nd3 16.cd3 d4 17.ba6 de3 18.ab7 Rb8 19.Nce4 ef2 20.Kh1 Qd4 21.Rac1 Rb7 22.Rf2 f5 23.Ne6 Qd7 24.N4g5 h6 25.Nf3 Qe6 26.Re1 Qe1! 27.Ne1 Re7 28.Nf3 Nf6 29.Rb2 Nd5 30.Rb5 Rd7 31.Ne5 Rd6 32.Nc4 Re6 33.h3 Nc7 34.Rb2 b5 35.Na5 Kf7 36.d4 Re1 37.Kh2 Rhe8 38.Rc2 R8e7 39.Nc6 R7e2 40.Ne5 Re5 41.de5 Ne8 42.Rc5 b4 43.Rb5 h5 44.Rb4 Re5 45.a4 Ra5 46.Kg3 Nd6 47.Kf4 Rc5 48.g4 hg4 49.hg4 fg4 50.Rb6 Rc4 51.Ke5 Nf5 52.Rb7 Ne7 53.a5 Rc5 54.Kf4 Ra5 55.Kg4 Rf5 56.Ra7 Re5 57.Kf4 Kf6 58.Ra6 Re6 59.Ra8 g5 60.Kf3 Kf5 61.Rf8 Rf6 62.Ra8 Ng6 63.Rg8 g4 64.Kg3 Re6 65.Ra8 Re3 66.Kg2 Nf4 67.Kf2 Rf3 68.Kg1 Kg5 69.Rg8 Kh4 70.Kh2 Rf2 71.Kg1-+ Nh3 72.Kh1 Rf1 73.Kh2 Rf2 74.Kh1 Rf3 75.Kg2 Nf4 76.Kh2 g3 77.Kg1 Ne2 78.Kh1 Rf1 79.Kg2 Rg1 80.Kf3-+ Nd4 81.Kf4 Rf1 82.Ke3 Nc2 83.Ke4 Kh3 84.Kd3 Rf2 85.Rh8 Kg2 86.Rg8 Ne1 87.Ke3 Rf3 88.Ke2 Nd3 89.Rg7 Nf4 90.Ke1 Rf1 91.Kd2 Kf3 0–1. Fontes,Carlos – Silva,Albino, POR–ch sf, 1992.

3.Nf3 cb4

4.d4 Bb7 5.Nbd2 e6 6.Bd3 Nf6 7.0-0 d5 8.e5 Ne4 9.Be4?? (better is 9.Qe1+=) 9...de4-+ 10.Ne1 Qd4 11.Rb1 Qe5 12.Bb2 Qd5 13.Nb3 (13.c4 bc3! 14.Bc3 Ba6-+) 13...Ba6 14.Qd5 ed5 15.Rd1 Bc4 16.g3 Nc6 (worse is 16...Bf1 17.Kf1 Nc6 18.Rd5-+) 17.Ng2 Bf1 18.Kf1 Ne7 19.Nd4 Rc8 20.Ne3 a6 21.Ne2 Rc5 22.Nf4 Ra5 23.Bd4 b5 24.Bc5 Ra2 25.Bb4 f6 26.Be7 Be7 (worse is 26...Ke7 27.Nfd5 Ke6 28.Nc3-+) 27.Nfd5 Bc5 28.Nc7 Kf7 29.Nf5 Rc2 30.Rd7 Kg6 31.g4 Kg5 (worse is 31...Rf2 32.Ke1 Rf5 33.gf5 Kh6 34.Na6-+) 32.Rg7 Kf4 33.Na6 (33.Ne6 Ke5 34.Nc5 Rc5 35.Re7 Kf4 36.h3-+) 33...Bf2 34.Nc7 Kf3 (34...Kf3 35.Nd4 Bd4 36.Ke1 Rc1 37.Kd2 Be3) 0–1. Roth,Michael J – Comp Fritz 4, Edinburgh op, 1997. (=1.e4 c5 2.b4 b6)

4.d4 Bb7 5.Bd3 Nf6 6.Nbd2 d5 7.Qe2 de4 8.Ne4 Ne4 9.Be4 Be4 10.Qe4 Nd7 11.a3 e6 12.0-0 ba3 13.Ba3 Ba3 14.Ra3 0-0 15.c4 Qc7 16.Rc1 Rfc8 17.Ng5 Nf6 18.Qh4 h6 19.Nf3 Qd6 20.Rb3 Rc7 21.Ne5 Nd7 22.Qf4 Ne5 23.de5 Qd7 24.Rg3 Rd8 25.Qg4 g6 26.h4 Qd4 27.h5 Qg4 28.Rg4 Kg7 29.Rc3 g5 30.Ra3 (30.Kf1 Rdc8-+) 30...a5 (30...Rd1!? 31.Kh2-+) 31.Rb3 Ra7 32.Rgg3 (32.Rb6!? Rd1 33.Kh2-/+) 32...a4 33.Rb6? (33.Rb1 Rd4 34.Rc3 Re4-+) 33...Rd1 34.Kh2 a3 35.c5 (35.Rbb3 a2 36.Ra3 Ra3 37.Ra3-+) 35...a2 36.c6 (36.Rd6 a1Q 37.Rd1 Qd1 38.Rh3-+) 36...a1Q 37.Rgb3 Qe5 38.g3 Raa1 (38...Raa1 39.Kg2 Qe4 40.Rf3 Rg1 41.Kh2 Rh1 42.Kg2 Rag1; 38...Qe1 39.g4 Qf2 40.Kh3 Rh1) 0–1. Zechner,Guenther (1625) – Jahrer,Michael (1870), AUT–ch U16 Koestendorf, 1998. (=1.Nf3 c5 2.e4 b6 3.b4 cb4)

3.Nf3 Bb7

4.bc5 Be4 5.cb6 ab6 6.Nc3 Bb7 7.d4 Nf6 8.d5 (8.Nb5 Na6=) 8...g6 (8...Qc8 9.Qd4 e6 10.Bc4=+) 9.d6 (better 9.Rb1!?+/-) 9...Bg7= 10.Nb5 0-0 11.Be2 Ne4 12.Rb1 ed6 13.Bb2 Bb2 14.Rb2 Qf6 (14...Nc6 15.0-0=+ (15.Nd6? Qf6-+)) 15.Qd4= d5 (15...Kg7!?=) 16.Qf6+= Nf6 17.Nc7 Ra3 (17...Ra7 18.Nd4=) 18.Rb6 Ra2? (better 18...Bc6 19.Rb2 Ra7=) 19.Rb7+- (19.Rf6 Rc2 20.Nb5 Re8+=) 19...Ra1 (19...Rc2 20.Bd1 Ra2 21.Rg1+-) 20.Bd1 Na6? (20...Nc6 21.0-0 Rc8+-) 21.Na6 (better 21.Ra7 Ne4 22.0-0+-) 21...Re8+/- 22.Kd2 Ne4 23.Kd3 Nf2 24.Kd2 (24.Kc3 Nh1 25.Nc7=) 24...Nh1 (24...Ne4 25.Kd3 Nf2 26.Kc3 Nh1 27.Nc7=) 25.Be2 (25.Nc7 Rd8+/-) 25...Nf2 (25...Re2 26.Ke2 Ra6 27.Rb1 Re6 28.Kf1+=) 26.Nc5 (better 26.Nc7!? Ne4 27.Ke3+/-) 26...Ne4= 27.Ne4 de4 28.Nd4 d5 29.Bb5 (29.Rd7 Rh1=) 29...e3 (29...Re5!?=+) 30.Ke2= Re4 31.Nc6 (31.Nf3!? Ra5 32.Bd3=) 31...Rg1-/+ 32.Kf3 Kf8 (32...Rb1 33.Ke2 Re6=) 33.Bd3= Re8 34.Be2 Rc1 35.Nd4 Re4 36.Rb4 h5 37.Bd3 Re5 38.Kf4 Re8 39.Rb5 Rh1 (39...Rd1 40.Ra5-/+) 40.Kg3 h4 41.Kh3 Rd1 42.Rd5 e2 43.Ne2 (better 43.Be2 Re2 44.Rd8 Re8 45.Ne6 fe6 46.Rd1=) 43...Re2!-+ 44.Rd4? (44.Be2 Rd5 Pinning (44...Rd5 Deflection)) 44...Rdd2 (better 44...Rc2! 45.Bc2 Rd4 46.g4-+) 45.Rg4 Rf2 46.Rg5 (better 46.Ba6-+) 46...Kg7 47.Rg4 f5 48.Rh4 Rg2 49.Rc4 Rh2 50.Kg3 Rdf2 51.Rc6 (51.Rf4 Rhg2 52.Kh3 Kf6 53.Rf2 Rf2-+) 51...g5 (better 51...f4 52.Kg4 Rhg2 53.Kh4 Rg3 54.Rg6 Rg6 55.Bg6 Kg6-+) 52.Bf5 Rhg2 (52...Rf5?! 53.Kh2 Kf7 54.Kg3=) 53.Kh3 Rh2 (53...Rf5?! 54.Kg2 Kf7 55.Kg3=) 54.Kg3 Rfg2 (54...Rf5?! 55.Kh2 Kf7 56.Kg3=) 55.Kf3 Rf2?? (better 55...Re2-+) 56.Kg3= ½-½. Shirazi,K (2355) - Gusarov,G (2350), Titled Tuesday 7th July, 2020. (=1.e4 c5 2.b4 b6 3.Nf3)

4.bc5 Be4 5.Nc3 Bb7 6.Rb1 g6 7.Bc4 Bg7 8.Ng5 Nh6 (8...Bg2? 9.Rg1 (9.Bf7?! Kf8 10.Bd5 Bd5 11.Nd5 Nf6+=; 9.Nf7?! Qc7 10.Rg1 Qh2+=) 9...e6 10.Rg2+-) 9.0-0 0-0 10.Re1 Qc7 11.d4 (11.Re7? Qc5 12.Nf7 Qc4 (12...Qe7?! 13.Nh6 Kh8 14.Ng4-/+) 13.Nh6 Bh6-+) 11...bc5 12.Nb5 Qd8 13.d5 Ba6 14.d6 ed6 15.Qd6 Nc6 16.Qc5 Qa5 17.Ba3 Rfe8 18.Nf3?? (18.Bb4 Re1 19.Be1 Qa4=) 18...Bb5?? (better is 18...Re1 19.Re1 Bb5 20.Bb5 Bf8-+) 19.Re8+= (19.Bb5? Re1 20.Re1 Bf8-+) 19...Re8 20.Rb5 (20.Bb5 Rb8 21.Rb3 Bf8 22.Bc6 Bc5 23.Rb8 Kg7 24.Bb2 f6-+) 20...Qa4 21.Rb3 Bf8 22.Qb5 Qb5 ½–½. Kappelt,Joerg (2140) – Michalik,Friedhelm (2095), NRW–ch Muelheim, 2006. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.d3 cb4 5.a3 ba3 6.Na3 d5 7.e5 e6 8.Be2 (8.Nb5 a6 9.Nbd4 Qc7=+) 8...Bb4 9.Bd2 Bd2 10.Qd2 (worse 10.Kd2 Nc6-/+) 10...Ne7 11.Nb5 0-0 12.0-0 (12.Na7? Nbc6-+) 12...Nf5 (12...Nbc6!?=) 13.g4+= (worse 13.Ra7 Ra7 14.Na7 Ba6=+) 13...Nh4 (13...Ne7 14.Na7 (worse 14.Ra7 Ra7 15.Na7 Ba6=+) 14...Nbc6 15.Nb5+=) 14.Nh4 (14.Ra7 Ra7 15.Na7 Nf3 16.Bf3 Ba6-/+; worse 14.Na7 Nf3 15.Bf3 Ba6-/+) 14...Qh4 15.Nc7 Nd7 (15...Nc6 16.Na8 Ra8 17.f4+=) 16.Na8 Ra8 17.d4 f6? (better 17...a5+=) 18.Qb4+- fe5 (18...Nf8 19.Qe7 Bc6 20.Rfb1+- (20.Ra7?! Ra7 21.Qa7 Bb5 22.ef6 gf6+=)) 19.Qd6 Nf6 (19...Qd8 20.Qe6 Kh8 21.de5 Nc5+-) 20.de5 Ne4 (20...Ng4 21.Qe6 Kf8 22.Bg4+-) 21.Qe6 Kh8 (21...Kf8 22.Ra3 Nd2 23.Rd1+-) 22.Ra7! (22.Ra7 Qd8 23.Rb7+-) 1–0. Janek – Banis, internet, 2018. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.d3 Nc6 5.b5 (5.bc5 Nf6+=) 5...Nd4= 6.Nd4 cd4 7.Bb2 e5 8.g3 (8.c3 dc3 9.Nc3 Nf6=) 8...Nf6 9.Bg2 Bc5 10.0-0 d6 11.Nd2 Qd7 12.a4 0-0 13.Nc4 Rae8 14.Bc1 (14.c3 h5=) 14...h6 (14...d5 15.ed5 Nd5 16.Bb2=+) 15.f4 (better 15.Re1=) 15...Qc7?? (15...ef4 16.Rf4 d5 17.Rf6 gf6 18.ed5 Bb4=+ (worse 18...Bd5 19.Bd5 Qd5 20.Bh6+-)) 16.fe5+- de5 17.Rf6! gf6 18.Bh6 f5? (better 18...Bc8+-) 19.ef5 f6 20.Qg4 Kh7 21.Qg6 Kh8 22.Bf8 (22.Bc6 Bc6 23.bc6 Qh7 24.Bf8 Qg6 25.fg6 Rf8+-) 22...Rf8 23.Qh6 Kg8 24.Qd2 (24.a5 ba5 25.Qg6 Kh8 26.Qh5 Kg7 27.Na5 Bg2 28.Kg2 Qf7 29.Qg4 Kh6+-) 24...Rf7 (24...e4 25.a5 (25.Be4?! Be4 26.de4 d3 27.Kf1 Bd4+-; 25.de4?! d3 26.Kf1 Bd4+-) 25...ba5 26.Qa5+- (26.Be4?! Be4 27.de4 Bb4=)) 25.Bb7 Qb7 26.Qg2 Qd7 27.Rf1 a6? (27...Rg7 28.Qe4+-) 28.Qa8 (28.ba6 Qa4 29.Qa8 Rf8+-) 28...Rf8 (28...Kg7 29.Qa6 (29.ba6 Qa4 30.Ne5 fe5 31.f6 Kh7+-) 29...Qa7 30.Qa7 Ra7 31.Ra1+-) 29.Qa6 Rb8 (29...Qd8 30.a5 ba5 31.b6+-) 30.a5 ba5 (30...e4 31.Rf4 (worse 31.Nb6 Qf7+-) 31...ed3 32.cd3+-) 31.Qf6 e4 (31...Rb7+-) 32.Ne5 Qg7 33.Qe6 Kh7 34.Rf4 Be7 35.f6 Bf6 36.Rf6 Rb7 37.Qh3 (37.Qh3 Kg8 38.Qc8 Kh7 39.Rd6 Rf7 40.Nf7 Qf7 41.Qg4 e3 42.Qh4 Kg8 43.Qg5 Qg7 44.Rd8 Kh7 45.Qh5 Qh6 46.Rd7 Kg8 47.Qh6 a4 48.Qg7) 1–0. Nunes,Moezio Correia (1935) – Da Paixao,Irineu Vieira (1685), 16th Torneio Memorial Cel. Pm. Francisc, 2012. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.d3 e6 5.Bb2 Nf6 6.b5 d5 7.e5 Nfd7 8.Nbd2 Be7 9.Be2 0-0 10.c3 f6 11.d4 fe5-/+ 12.Ne5 Ne5 13.de5 Nd7 14.Bd3 Qe8 15.Qe2 c4 16.Bc2 Nc5 17.0-0 Nd3 18.Bd3= cd3 19.Qd3 Rf5 20.Rae1 Qg6 21.Re3 d4 22.Rg3+/- Qf7 23.Nf3 dc3 24.Qc3 Rc8 25.Qe3 Qh5 26.Nd4+/- Bc5 27.Qb3 Bd5 28.Qd3 Rg5 29.Nc6 Rc7 30.Bd4 Rg3 31.hg3 Bf8 32.Rc1+= Qg4 33.a4 Be4 34.Qe3 Bd5 35.f4 h5 36.a5 h4 37.ab6+/- ab6 38.Bb6 Rb7 39.Bc5 Rb5 40.Bf8+- Kf8 41.Nd4 Rb8 42.Kh2 Rb4? 43.Ne2?? Re4-/+ 44.Qa7 Kg8 45.Rc8 Kh7 46.Qf7 Re2 47.Qg8= Kg6 48.Qe8 Kf5 49.Qf8 Ke4 50.Qb4 Ke3?? 51.Rc3 Kf2 52.Qd4 Kf1 53.Qg1 1–0. Sutr,T – Probat,Bernd, Graz op (6), 1993.

4.d3 Nf6 5.bc5+= bc5 6.Nc3 e6 7.Rb1 Be7?? 8.Rb7+- 1–0. mtr – stwrom, internet, 2009.

4.Bd3 e6 5.0-0 Be7 (5...Qf6!? 6.c3 cb4+=) 6.Bb2 Nf6 7.e5 Nd5 8.a3 (8.bc5!? bc5 9.Re1=) 8...cb4+= 9.ab4 0-0 (9...Nb4 10.Qe2-/+) 10.Nc3 (10.b5!?=) 10...Nb4-/+ 11.Bc4 d5 12.ed6 Qd6 13.Re1 Bf3 (13...Qf4!? 14.Be2 Rd8-/+) 14.Qf3+= Rd8?? (14...Qc6 15.Ne4 A) worse is 15...Qc4 16.Qg4 g6 17.Nf6 Bf6 18.Qc4 Bb2 19.Rab1+/- (19.Qb4?! Ba1 20.Ra1 Nc6=); B) worse is 15...Nc2 16.Qc3 e5 17.Qc2+-; C) 15...Nd7+=) 15.Bd3?? (15.Qa8 N8c6 16.Ra7 Ra8 17.Ra8 Nd8 18.Ba3+-) 15...N8c6 (15...Nd3!? 16.cd3 Nc6-+) 16.Ba3 Qd7 17.Be4 Rac8 18.Qh3 h6 19.Rab1 a5 20.Re3 Qd2 21.Rg3? (21.Bb2 f5 (21...Nc2?! 22.Re2 Qg5 23.Rc2-+) 22.Re2 Qf4 23.Bc6 Rc6-+ (23...Nc6?! 24.Re6 Bc5 25.Rf1-+)) 21...Bf6 22.Ra1 (22.Rf1 Bc3 23.Rc3-+) 22...Bc3 23.Rc3 (23.Rf1 Nd4 24.Kh1 Ndc2 25.Bb4 Nb4 26.Re3-+) 23...Qd1! 24.Rd1 (24.Rd1 Rd1 Mate attack) 24…Rd1 0–1. Jangle,Hemang – Liou,Arthur, Los Gatos Fremont–South Bay, 2005. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.e5 cb4 5.d4 e6 6.a3 a5 7.ab4 ab4 (7...Bb4 8.c3 Be7 9.Bd3=+) 8.Ra8 Ba8 9.Bd3 Ne7 10.0-0 h6 11.Nbd2 (11.Bd2 Nf5 12.Bf5 ef5=) 11...Nd5 12.Ne4 Nc3 13.Qe1 Qc7 14.Bd2 Be4 15.Be4 Be7 16.h4 (16.Bd3 d5=) 16...0-0=+ 17.g4 (17.Bd3!?=+) 17...Ne4 18.Qe4 Rc8 19.Rc1 Qc6 20.Qe3 Qd5 21.g5 h5 22.g6 (22.Qd3!?-/+) 22...fg6-+ 23.Ng5 (23.Qd3!? Rf8 24.Ng5 Nc6-+) 23...Nc6 24.c3 bc3 25.Rc3 (25.Qc3 Bg5 26.hg5 Ne7-+) 25...Rf8 (25...Bg5!? 26.hg5 Ra8 27.Kh2-+) 26.Rd3 Bg5 27.hg5 Ra8 28.f3 Ra1 29.Be1 (29.Kf2 b5-+) 29...Qc4 (29...Ne5 30.de5 Re1 31.Qe1 Qd3 32.Kg2-+) 30.Kg2 (30.Kf2-+) 30…Re1! (30...Re1 31.Qe1 Qd3-+) 0-1. Nunes,Moezio Correia (1760) - Dumont,S (2295), Achilles Gadelha Mem, 2019. (=1.e4 c5 2.b4 b6 3.Nf3)

4.e5 Qc7 5.Bb2 (5.bc5 Bf3 6.Qf3 Qe5 7.Be2 Nc6+=) 5...cb4+= 6.a3 e6 7.d4 ba3 8.Na3 Bb4 9.Nd2 a6 10.c3 Ba3 11.Ra3 Ne7 12.c4 d6 13.Bd3 (13.ed6 Qd6 14.c5 bc5+=) 13...de5-/+ (13...Bg2 14.Rg1 Bb7 15.Rg7 de5 16.Qh5+=) 14.de5 Nbc6 15.Qe2 Ng6 16.Bg6 hg6 17.0-0 Ne7 18.Ne4 Be4 19.Qe4 Qc6 20.Qf4 (20.Qd3 Rd8 21.Qb3 b5+=) 20...Nf5-/+ 21.Rf3 (21.Rfa1 a5-/+) 21...Ra7 (21...Rh4 22.Qg5-+) 22.Ba3 (22.Rd3!?-/+) 22...Rd7 23.Qc1 Rd4 24.Rf4 Rf4 25.Qf4 Rh4 26.g4?? (better is 26.Qg5 Qa4 27.Ra1 Rc4 28.h3-+) 26...g5! 27.Qg5 Qf3 28.gf5 Rg4 29.Qg4 Qg4 (29...Qg4 30.Kh1 Qf3 31.Kg1 Qa3 32.fe6 fe6-+) 0–1. Sokolovsky,V (2050) – Pasiev,R (2275), 14th Master Open, Voronezh RUS, 2010. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.e5 e6 5.a3 Ne7 (5...cb4 6.d4=+) 6.c3 Ng6 (6...d6 7.d4=) 7.d4+= d5 8.Bd3 Be7 9.b5 (9.0-0 0-0=) 9...c4 10.Bc2 a6 11.ba6 Ra6 12.a4 0-0 13.Na3 (13.Ba3 Nf4 14.0-0 f6=) 13...Nc6 (13...Bc6 14.Rb1=+) 14.Nb5= Na5 (14...Na7 15.Na7 Ra7 16.Be3=) 15.Ba3 Bc6 16.Be7 Qe7 17.Nd6 f5 18.h4 Nb7 The isolani on a4 becomes a target 19.Nb7 Qb7 20.Ng5 Qd7? (better 20...Re8=) 21.Qh5+- Rf7?? (21...h6 22.Qg6 hg5 23.hg5 Qe8 24.Qh7 Kf7+-) 22.Qh7 Kf8 23.Qg6 Re7 (23...Ke8 24.Ne6 Ke7 25.Ng7+-) 24.Qh7 (better 24.Nh7 Kg8 25.Nf6 Kf8 26.Nd7 Bd7+-) 24...Rf7 (24...Re8 25.h5 Ra5 26.h6+-) 25.h5 Ra8 (25...Qe8 26.h6 Ke7 27.hg7+-) 26.Nf7 (26.h6 gh6 27.Qg6 Ke8 28.Rh6 Qe7 29.Bf5 Kd7 30.Ne6 Rf5 31.Nc5 Kd8 32.Qc6 bc5 33.Qd5 Ke8 34.Qa8 Qd8 35.Rh8 Ke7 36.Qd8 Ke6 37.Rh6 Kf7 38.Rh7 Ke6 39.Qd6) 26...Qf7 27.h6 g6 (27...Ke7 28.Qg7 Qg7 29.hg7+-) 28.Qh8 Ke7 29.Qg7 (better 29.Qa8! Ba8 30.h7 Qg7+-) 29...Rg8 (29...Qg7 30.hg7 Kf7 31.Rh8+-) 30.Qf7 Kf7 31.h7 Rh8 32.a5 (better 32.Rb1!? Ke7+-) 32...ba5 33.Ra5 (33.Ra5 Be8 34.Ra6+-) 1–0. Nunes,Moezio Correia (1795) – Da Paixao,Irineu Vieira (1845), CCXC – Prof Nilo Sales – Etapa, 2016. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

4.Bc4 e6

5.bc5 bc5 6.Nc3 Nc6 7.0-0 Na5 8.Bb5 Nf6 9.Re1 Be7 10.e5 Nd5 11.Ne4 0-0 12.d4 cd4 13.Qd4 a6 14.Bd3 Nc6 15.Nf6 (better is 15.Qa4!?=) 15...Nf6-/+ (15...gf6 16.Bh7 Kh8 17.Qh4 fe5 18.Qh3+/-; worse is 15...Bf6 16.Qe4 g6 17.ef6 Qf6 18.Bg5=) 16.Qh4 g6 (better is 16...Ne5!? 17.Ne5 d6-/+) 17.ef6= Bf6 18.Bg5 Bg5 19.Ng5 h5 20.g4 (20.Rab1!? Rb8 21.Qg3+=) 20...Nd4 21.Re3 f6 22.gh5 Nf5 23.Bf5 fg5 24.Qb4 Qf6 25.Rf1 Rab8 26.Bg6 Bg2 27.Qb8 Rb8 28.Kg2 Rb4 29.Rd1 Rh4 30.h3 g4 31.hg4 Rg4 32.Rg3 Rg3 33.fg3 d5 34.Rf1 Qg5 35.Kh3 a5 36.Rf4 Kg7 37.Rf7 Kg8 38.Rf4 Kg7 39.Rf7 Kg8 40.Rf4 ½–½. Vekemans,D (2020) – Wirig,A (2480), 2nd Lille Open, 2011. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.bc5 Be4 6.Nc3 Bf3 7.Qf3 Nc6 8.cb6 ab6 9.Nb5 d5 10.Bb2 Qd7 (10...Nf6 11.Bf6 gf6 12.Be2=) 11.Be2 Nh6 12.0-0 Nf5 13.Bd3 Nd6 14.Rfe1 Ra5 15.a4 Nc4 16.Bc4 dc4 17.Qf4 Bb4 18.Bg7 Bd2?? (better is 18...Rg8 19.Bc3 Bc3 20.dc3 Rg6+-) 19.Nd6+- Kd8 20.Qd2 Rg8 21.Nb7 Kc8 22.Qd7 Kd7 23.Na5 Na5 (23...ba5 24.Rad1 Ke7 25.Bc3+-) 24.Bc3 Nc6 25.Re4 1–0. Nakamura,Clyde J (2060) – Yasutake,Paul, Hawaii op Honolulu, 1996. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.bc5 Qf6 6.Nc3 Bc5 7.Rb1 Nc6 8.Nb5 Rc8 9.d4 a6 (better is 9...Nd4!? 10.Nfd4 a6=) 10.dc5+/- ab5 11.Bb5 (11.Rb5?! Ba6 12.Bb2 Qg6=) 11...bc5 12.0-0 Qe7 13.Bf4 Na5 14.Qd2 Qd8 15.Ne5 Nf6 16.f3 Nc6 17.Nc4 0-0 18.Nd6 Rb8? (18...Rc7 19.Be3 Nd4 20.Bd3+- (20.Bd4?! cd4 21.Qd4 Ne8+-)) 19.Be3 (better is 19.Bc6 Bc6 20.Nf7 Rb1 21.Nd8 Rf1 22.Kf1 Rd8 23.c4+-) 19...Qb6 20.Bc6 Qc6 21.Nb7 Rb7 22.Rb7 Qb7 23.Bc5 Rc8 24.Bd4 Qa6 25.c3 d6 26.Rb1 e5 27.Bf2 Ne8 28.h3 Qc4 29.Be1 Ra8 30.Rb2 Rc8 31.Qd5 Qd5 32.ed5 Kf8 (32...Rc5!?+=) 33.a4 Nf6 34.Rb5 Nd7 35.a5 Ke8 36.Kf1 Rc5 37.Rc5 Nc5 38.Ke2 Kd7 39.Bf2 Na4 40.Kd3 Nb2 41.Kc2 Nc4 42.a6 Kc7 43.Kb3 Nd2 44.Kb4 f5 45.c4 e4 46.fe4 (better is 46.c5 dc5 47.Bc5+-) 46...Ne4 47.Bd4 g5 48.c5 f4 (48...dc5 49.Bc5 h5+-) 49.cd6 (49.cd6 Nd6 50.Be5+-) 1–0. Husson,Cybele (2005) – Amoyal,Pierre (2160), FRA–chT1B, 2009. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.d3 cb4 6.c3+=.

5.d3 Nc6 6.0-0 (6.bc5 Na5 7.Bb3 Bc5=) 6...Be7 (better is 6...cb4!? 7.d4 Nge7+=) 7.bc5 bc5 8.Nc3 d6 9.Rb1 Rb8 10.Bf4 g5 11.Be3 g4 12.Nd2 Nf6 13.Nb3 0-0 14.Bh6 Re8 15.d4 cd4 16.Nd4 Kh8 17.Bb5 Rc8 18.f4 Rg8 19.Kh1 Rg6 20.Bg5 Nd4 21.Qd4 Qc7 22.Rb3 a6 23.Bd3 e5 24.Qb4 Ba8 25.Bf6 Rf6 26.Nd5 a5 27.Nc7 ab4 28.Na8 Ra8 29.Rb4 ef4 30.a4 h6 31.Rb7 Bf8 32.Bb5 Kg7 33.Kg1 Kg6 34.Kf2 (34.Bd3!? Kg7 35.Ra1+/-) 34...Re6+= 35.Re1 Bg7 36.Bc6 Bd4 37.Kf1 Rf6 38.Bb5 h5 39.Rc1 Bc3 40.Rc7 Bb4 41.c3 Ba5 42.Rc6 0–1. Selivanova,Anna (2110) – Kindinova,Ekaterina (1980), RUS–ch (Women) 1st League, 2007. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.Qe2 Nf6 6.d3 d6 (6...cb4 7.0-0=+) 7.Bb2 (7.bc5 dc5 8.Nbd2 Be7=) 7...Be7 (7...cb4 8.0-0=+) 8.bc5= bc5 9.0-0 0-0 10.e5 de5 11.Ne5 Bd5 12.Nd2 Qc7 13.f4 Nc6 14.Ndf3 (14.Nc6!? Qc6 15.Rab1=) 14...Bc4=+ 15.Nc4 Nd5 (15...Qf4 16.Rae1 Qh6 17.Nfe5 Ne5 18.Be5=+) 16.Nfe5 Bf6 17.Rae1 Rab8 (better 17...Nd4 18.Qf2 Nf5=) 18.Rf3?? (better 18.Nc6 Qc6 19.Be5 Be5 20.fe5+=) 18...Rb2!-+ 19.Nb2 Nf4! 20.Rf4 Be5 21.Rc4 Bb2 22.c3 Na5 (22...Qb6!? 23.Qf2 Ba3 24.Rg4-+) 23.Qb2 Nc4 24.dc4 Rd8 25.Qf2 Rd3 26.Re3 (26.Qc2 Qd8-+) 26...Rd1 27.Re1 Qd6 28.h3 Qd2 29.Rd1 Qd1 30.Kh2 Qd6 31.Kg1 f6 32.Qf3 Qc7 33.h4 f5 34.h5 g6 35.h6 Kf7 36.Qa8 Kf6 (36...Qd7!? 37.Qb8-+) 37.Qh8-/+ Kg5 38.Qg7 Qf4 39.Qh7 Qe3 (39...Qc4?! 40.Qg7 Qd3 41.h7 Qe3 42.Kh2 Qf4 43.Kg1 Qc1 44.Kh2 Qf4 45.Kg1 Qe3 46.Kh2 Qf4=) 40.Kh2 Qf4 41.Kg1 ½–½. Demirci,Fatih (1745) – Celik,Ege (1760), TCh–TUR 1st League, 2018. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7 4.Bc4 e6)

5.Qe2 Nf6 6.e5 Nd5 7.bc5 Nf4 8.Qf1 Bf3 9.gf3 Nc6 10.d4 Nd4 11.Bf4 Nc2 12.Kd2 Na1 13.Nc3 Bc5 14.Qa1? Qh4-+ 15.Ne2 g5 16.Rg1 gf4 0–1. Thomas,Andrew – Leslie,D, BCF–ch Chester (5), 1952.

4.bc5 bc5

5.Nc3 Nc6 6.Rb1 Rb8 7.Bc4 g6 8.0-0 Bg7 9.a4 d6 10.Bf7 (better 10.Bb2!?+=) 10...Kf7=+ 11.Ng5 Ke8 12.Ne6 Qd7 13.Ng7 Kf8 14.Nh5 gh5 15.Nd5 Nf6 16.d3 (16.Bb2 Kg7=+) 16...Qg4-/+ 17.f3 Qg6 18.Nf4 Qf7 19.c3 Kg7 20.d4 Ba6 21.Rb8 Rb8 22.Rf2 cd4 23.cd4 e5 24.d5 Nd4 (24...Nd8 25.Nd3-/+) 25.Bb2 (25.Be3 Ne8-/+) 25...Nd7 26.Bd4? (better 26.g3!?-/+) 26...Qf4-+ (26...ed4?! 27.Ne6 (worse 27.Qd4 Kg8 28.g3 Ne5-/+) 27...Kg8 28.Nd4=+) 27.g3 Qh6 28.Rc2? (28.Bb2-+) 28...ed4 29.Qd4 Qf6 30.Qa7 (30.Qf6 Kf6 31.Rc6-+) 30...Rb1 (30...Qa1 31.Kf2 Qf1 32.Ke3 Rb3 33.Rc3 Qc1 34.Kf2 Rb2 35.Rc2 Rc2) 31.Kg2-+ Bf1 32.Kf2 Bh3 33.f4 (33.Qe3 Rf1 34.Ke2 Rf3 35.Qf3-+) 33...Rb2 34.Rb2 Qb2 35.Ke3 Qc3 36.Ke2 Bg4 37.Kf1 Qd3 38.Kg2 Qf3 (38...h4 39.Qd7 Bd7 40.f5 Qe2 41.Kh3 Kh6 42.a5 Kh5 43.e5 Qf1) 39.Kg1 Bh3 40.a5 (40.Qd7 Bd7 41.f5 Qe3 42.Kf1 Ba4 43.f6 Kf6 44.e5 Qe5 45.Kf2 Qb2 46.Kf3 Bd1 47.Ke4 Qf2 48.Kd3 Ke5 49.Kc4 Qc5 50.Kd3 Qd4) 40…Qg2 0–1. Go,B (2160) – Warmerdam,Max (2420), Condigne Dutch Open, 2018. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7 4.bc5 bc5)

5.Nc3 Nc6 6.Rb1 Rb8 7.Bc4 g6 8.0-0 Bg7 9.Rb5 Nh6 (9...Ne5!? 10.Ne5 Be5+=) 10.Rc5+/- 0-0 11.d4 d6 12.Rb5 a6 13.Rb1 Na5 14.Be2 f5 15.Ng5 Qd7 16.Nd5 (16.Qd2 e6+/-) 16...fe4+= 17.Nb6 Qf5 18.g4 Qf6 19.Nd7 Qd4 20.Qd4 (20.Nb8 Qd1 21.Rd1 Rb8 22.Ba6 e3+-; worse is 20.Nf8 Qd1 21.Rd1 Kf8 22.Ba6 Ng4+-) 20...Bd4 21.Nf8 (worse is 21.Nb8 Rb8 22.Ne4 Nf7 23.Ba6 Ne5+-) 1–0. Buecker,S (2355) – Quinn,Joh (2140), 26th ChessOrg Schachfestival, Bad Woerishofen, 2010. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.Nc3 Nc6 6.Bc4 e6 7.Rb1 Na5 8.Be2 Nf6 9.d3 Be7 10.0-0 0-0 11.Bd2 Rb8 12.Re1 d6 13.Bf1 Nc6 14.Ne2 Qd7 15.h3 Ne5 16.Ne5 de5 17.Bc3 Bd6 18.Qc1 Qa4 19.Ng3 Nd7 20.Rb3 c4 21.dc4 f6 22.Rb5 Ba6 23.Ra5 Qc6 24.Rd1 Nc5 25.Qe3 Rfc8 26.a3 Bf8 27.Nh5 Nb7=+ 28.Ra6 Qa6 29.Qg3 Rd8 30.Nf6 Kh8 31.Nd7 Nc5? 32.Nb8 Rb8 33.Qe5 Rc8 34.Bb4 Qb6 35.Bc3 Qc6?? 36.Rd4 Na4 37.Ba1 Nc5 38.Qf4 Qe8 39.Rd1 Qa4 40.Qg5 Kg8 41.Re1 Qc2 42.Qg4 Rd8 43.Be5 Rd2 44.Bg3 Rd4 45.f3 Rd7 ½–½. Kadas,Gabor – Dobosz,Henryk (2380), Szolnok, 1985.

5.Nc3 d6 6.Rb1 Qc8 7.Bc4 8.d3 (8.0-0 Nf6 9.Re1 Be7 10.Bb2 0-0 11.d3 Nc6 12.Qe2 Rb8+= 0.31) 8...Ne7 (8...Nf6 9.Bf4 Nc6 10.Nb5 e5 11.Bg5 a6 12.Na3 Be7+= 0.50) 9.0-0 Nbc6 10.Bf4 (10.Be3 Rb8 11.Re1 a6 12.a3 Na5+= 0.62) 10...Ng6 11.Bg3 Be7 (11...Rb8 12.Rb2 Be7+= 0.47) 12.Nb5 e5 (12...Nge5+/- 0.84) 13.Qd2 0-0 14.h4 h5 15.Ng5 Rb8 16.f4 Qg4 (16...Nf4? 17.Bf4 ef4 18.Nf7+-) 17.Qf2 ef4 18.Bf4 Nf4 19.Qf4 Qf4 20.Rf4 Ne5 21.Bb3 a6 22.Na3 Bc6 23.Rbf1 Bf6 24.Nc4 Nc4 25.Bc4 a5 (25...Bb5 26.Bd5+=) 26.g4 hg4 27.Rg4 Bd7 28.Rg2 Bg5 29.Rg5 Be6 30.Bb3 a4 31.Ba4 Ba2 32.Rf2 Rb4 33.Bc6 Rb6 34.c4 Bc4 35.dc4 Rc6 36.Rfg2 Kh7 37.Rg7 Kh6 38.Kh2 Rc7 39.R2g4 Re8 40.Kg3 Re4 41.Re4 Kg7 42.Kf4 Rd7 43.Re1 d5 44.cd5 Rd5 45.Re4 Kg6 46.Ke3 f5 47.Re8 Rd4 48.Re5 Rh4 49.Rc5 Kg5 50.Rc8 Rh3 51.Kf2 Rh6 52.Kf3 Re6 53.Rg8 Kf6 54.Kf4 Re4 55.Kf3 Ke5 (better is 55...Re1!?-/+) 56.Re8= Kd4 57.Rd8 Kc4 58.Rf8 Re5 59.Kf4 Rc5 60.Rf5 Rf5 ½–½. Boelen,Alexander (1865) – Tchifteyan,Philippe (1660), Marseille FRA, 4th Open, 2011. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7)

5.Nc3 e6 6.d4 cd4 7.Nd4 Bc5 8.Be3 (better is 8.Rb1 Qc8 9.Be3+=) 8...Qa5+= 9.Qd2 Bb4 10.Nb3 Qc7 (10...Bc3?! 11.Na5 Bd2 12.Kd2 Be4 13.Nc4=) 11.Bd4 e5 12.Bc5 Bc5 13.Nc5?? (better is 13.Nb5 Qc6 14.Nc5 Qc5 15.Nd6 Ke7 16.Nb7+=) 13...Qc5-+ 14.Rb1 Qc6 15.Bd3 Nf6 16.0-0 0-0 17.Rfe1 d5 (17...Rc8 18.Rb5 Ba6 19.Nd5 Nd5 20.Rd5-+) 18.Bb5? (18.ed5!? Nd5 19.Rb7 Qc3 20.Qc3 Nc3 21.Re5 Na2 22.Ra5-/+) 18...Qd6 (better is 18...Qc7 19.ed5 Rd8 20.Bc4-+) 19.f4? (19.Bc4 Rc8 20.Bd5 Bd5 21.Nd5-+) 19...ef4 20.e5 Qc5 21.Kf1 (21.Kh1 Ng4 22.Na4 Qf2-+) 21...Ne4 22.Ne4 de4 23.Ba4 (23.Qf4 Nd7! 24.Qf2 Qf2 25.Kf2 Ne5 26.Be2-+) 23...Ba6 24.Re2 (24.Bb5 Bb5 25.Rb5 Qb5 26.Qe2 Qe2 27.Re2 Rc8 28.Re4 Rc2-+) 24...Qe5 (24...f3!? 25.gf3 ef3 26.Rbe1-+) 25.Rb4 Be2 26.Qe2 Qa1 27.Kf2 e3 28.Kf3 Qf6 29.Rf4 Qb6 30.Re4 Nc6 31.Bc6 Qc6 32.Qe3 Rfe8 33.c4 f5 34.Qb3 fe4 35.Ke3 Qc5 36.Ke2 e3 37.a4 Rad8 38.g4 Rd2 39.Ke1 Qd4 40.c5 Kh8 41.c6 e2 42.Qg8 Kg8 43.c7 Rd1 0–1. Tian,Vincent – Liou,Arthur, Fremont MSJE CC, 2005. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7 4.bc5 bc5)

5.Nc3 Nf6 6.Bc4 e6 7.d3 Be7 8.0-0 0-0 9.Re1 d5 10.Bb3 de4-/+ 11.de4 Qd1 12.Rd1 Be4 13.Ne4 Ne4 14.Ne5 Bf6 15.Bb2 Nc6! 16.Nc4 Bb2 17.Nb2 Nd4 18.Ba4 Rab8 19.Bb3 Rfd8 20.f3 Ne2 21.Kf1-/+ N4c3 22.Rd8 Rd8 23.Na4 Na4 24.Ba4 Nc3 25.Bb3 Kf8 26.Re1 Ke7 27.Re3 Nb5 28.Ba4 Nd6 29.Ke2 c4 30.Ra3 Rc8 31.Kd2 Rc5 32.Kc3 a5 33.Kd4 Rd5 34.Ke3 Nf5 35.Ke4?? Rd4 (35...Rd4 36.Ke5 f6) 0–1. Rezny,F (1665) – Hajek,Ji2 (1985), Open, Teplice CZE, 2009.

5.Nc3 Nf6 6.Ng5 h6=+ 7.Nf7 Kf7-/+ 8.Bc4 d5 9.e5? dc4-+ 10.ef6 ef6 11.0-0 Bd6 12.Nb5 Be5 13.Rb1 a6 14.Na3 Bd5 15.Bb2 Nc6 16.f4 Bb2 17.Rb2 Re8 18.Nb1 Rb8 19.Rb8 Qb8?? 20.Qh5+= Kf8 21.Qd5 Nd4?? 22.Qc5+- (22.Qc5 Re7 23.Qd4+-) 1–0. Hackney,Gary – Haase,Peter, IECC, 1998.

5.Nc3 g6 6.Rb1 Bc6 7.Bc4 Bg7 8.0-0 Nh6 (8...Nf6 9.e5 Nh5 10.d4 cd4 11.Nb5+- (worse is 11.Qd4 Bf3 12.gf3 Nc6+=)) 9.d4 cd4 10.Bh6 (better is 10.Nd4!? 0-0 11.h3+-) 10...Bh6+/- 11.Qd4 (11.Nd4 0-0+/-) 11...0-0 12.Qd3 (12.Rb3 Bg7 13.Qd2 d6+=) 12...d6 (12...e6 13.Nd4+/-) 13.e5 (better is 13.Nd4!? Qd7 14.Nd5+/-) 13...de5+= 14.Qd8 (14.Ne5 Qd3 15.cd3 Bf4+=) 14...Rd8 15.Ne5 Bg7 (better is 15...e6!?+=) 16.Nf7+/- (16.Bf7?! Kf8 17.f4 Rd2 18.Nc6 Nc6=) 16...Rd4 (16...Rd2 17.Ng5 Kh8 18.Nb5+/-) 17.Bb3 Rb4 (17...Bf6!? 18.Nd8 Kh8+/-) 18.Ng5 (18.Nd8 Kh8 19.Ne2 Bf6+-) 18...Kh8 19.Nf7 Kg8 20.Nd8 Kh8 21.Ne2 Bf6 22.Rfd1 (22.Rfe1 Rb6+-) 22...a5 (22...Be4 23.a3 Rb3 24.cb3+/- (24.Rb3?! Bc2 25.Rbd3 Bd3 26.Rd3 Na6=)) 23.Nf4 Ra7 (23...Rf4 24.Ne6 Decoy) 24.Nfe6 (24.c3 Bc3 25.a3 Rf4+-) 24...Bd7 (better is 24...Rd7+-) 25.a3 Rb6 26.Bc4 Rb1?? (26...Bb2+-) 27.Rb1 Na6 (27...Be6 28.Rb8 (28.Be6?! Na6+-) 28...Be5 29.Nf7 (29.Ne6 Bb8 30.Bb5 a4-/+) 29...Kg7 30.Ne5 Bc4 31.Nc4+-) 28.Ba6 Ra6 (28...h5 29.Bb7 Bc3+-) 29.Nf7 Kg8 30.Nh6 Kh8 31.Rb8 1–0. Nielsen,Ro (2295) – Hansen,Herl (2035), ch–FAI, 2015. (=1.e4 c5 2.b4 b6 3.Nf3 Bb7 4.bc5 bc5)

3.Nf3 Nc6

4.b5 Nd4 5.Bc4 (5.Bb2 Bb7 6.Nd4 cd4+=) 5...e6 Covers d5 6.e5 (6.c3!? has some apparent merit 6...d5 7.cd4 dc4 8.Bb2=) 6...Bb7 7.c3?? (better is 7.Nd4 would hold out 7...cd4 8.Qg4-/+) 7...Nf3-+ 8.gf3 d6 (better is 8...Qg5 seems even better 9.Kf1-+) 9.d4?? (better is 9.ed6 Bd6 10.h3-+) 9...d5 (better is 9...de5 and Black wins 10.Be2 ed4-+) 10.Be2 (10.Bf1 cd4 11.cd4 Rc8+=) 10...Ne7 (10...cd4 11.cd4 Rc8 12.Bd2+=) 11.Bg5 h6 12.Bh4 (12.Be7 Be7 13.h3+=) 12...g6?? (12...cd4 13.cd4 (13.Qd4? g5 14.Bg3 Nf5-+) 13...Rc8 14.Bd3-/+) 13.Rg1 Qd7 14.Bf6 A beautiful square! 14...Rg8 15.dc5 bc5 16.Na3 0-0-0 17.Qa4 Kb8 18.Rb1 Bg7 19.Qa5?? Bf6+= 20.ef6 Nf5?? 21.b6+/- Bc8?? 22.ba7 (22.ba7 Ka8 23.Rb8) 1–0. Hwa,Kevin – Ramnarayan,Govind, Fremont Weibel Quads, 2001. (=1.e4 c5 2.b4 b6)

4.bc5 bc5 5.Bb5 Bb7 6.0-0 d6 7.c3 Qb6 8.Ba4 g6 9.Na3 Bg7 10.Rb1 Qc7 11.Qb3 Bc8? 12.Nb5+- Qb6 13.Nd6! ed6 14.Qb6 ab6 15.Bc6 Bd7 16.Ba8 b5 17.d4 Ne7 18.Bb7 0-0 19.dc5 dc5 20.Rd1 Bg4 21.Rb5 Bf3 22.gf3 Bc3 23.Bg5 f6 24.Rd7 fg5 25.Re7 Bd4 26.Bd5 Kh8 27.Rbb7 (27.Rbb7 Bf2 28.Kg2 Rf7 29.Rf7 c4 30.Rh7) 1–0. Belanoff,Stuart (2260) – Murphy,Justin, IECG, 2007.

4.bc5 bc5 5.c3 d6 6.Bb5 Bd7 7.0-0 e5 8.d4 ed4 9.cd4 Nf6 10.e5 de5 11.de5 Ng4 12.Qd5 Nce5?? (better is 12...Qb6 13.Na3 Rc8+/-) 13.Ne5+- Ne5 14.Qe5 Be7 15.Qg7 Rf8 16.Rd1 (16.Rd1 Bb5 17.Rd8 Rd8 18.Nc3+-) 1–0. pierre – costica, internet, 2012. (=1.e4 c5 2.b4 b6 3.Nf3 Nc6)

4.bc5 bc5 5.c3 Nf6 6.e5 Nd5 7.d4 e6 8.Bd3 Qb6 9.Be4 Ba6 10.Ng5 (10.a3 f5 11.Bd5 ed5=) 10...h6 (10...cd4 11.Nh7 Bc5 12.c4 Bc4 13.Qg4 Qb4 14.Nd2-+) 11.Qh5 (11.Nh7!? cd4 12.Nf8 Kf8 13.cd4=) 11...g6+= 12.Bg6 0-0-0?? (better is 12...fg6 13.Qg6 Ke7+=) 13.Nf7+- Be7 14.Nd8 Bd8 15.Qd1 (15.dc5 Qb8+-) 15...Qb5 16.Na3 (better is 16.Be4+-) 16...Qa5+/- 17.Nb1 cd4 (17...Qb5 18.Be4 cd4 19.cd4 Nd4+-) 18.Bd3 Ne5 19.Ba6 Qa6 20.Qd4 Nd3 21.Kd1?? (21.Kd2 Rf8 22.f3 Bg5 23.Kc2 Nc1 24.Rc1 Be3+=) 21...Rf8 (better is 21...Bf6!? 22.Qf6 Nf6 23.Be3-+) 22.Bh6?? (22.f3 Rg8 23.Kc2-+ (23.Bh6?? Bb6 24.Qd5 ed5-+)) 22...Bb6 (better is 22...Bf6 23.Bf8 Bd4 24.cd4 Nf2 25.Ke1 Nh1-+) 23.Qg7?? (23.Qh4 Rf2 24.Bd2 Ne3 25.Be3 Nb2 26.Kc1 Be3 27.Nd2 Nd3 28.Kc2 Rd2 29.Kb1 Rb2) 23...Rf2 (23...Qa4 24.Kd2 Rf2 25.Kd3 Nb4 26.Ke4 Qc6 27.Ke5 Nd3) 24.Qg8 Kb7 25.Qg7 Qa4 0–1. Gramstad,Thomas – Berntsen,Mathias, Oslo–ch, 2004. (=1.e4 c5 2.b4 b6 3.Nf3 Nc6)

4.bc5 bc5 5.Bc4 e6 6.0-0 d6 7.c3 Nf6 8.Qe2 Be7 9.d4 d5 10.Bd3 de4 11.Be4 Ne4 12.Qe4 Qd7 (12...Qd5 13.Qd5 ed5 14.Re1+=) 13.Be3 (13.Ne5!? Ne5 14.Qa8=) 13...cd4= 14.cd4 0-0 15.Nbd2 Ba6 16.Rfc1 Nb4 17.Rc3 (17.Ne5!? Qa4 18.Nb3=) 17...Rac8 18.Rb3 Nc2 19.Rab1 Qa4 20.Qg4 (better is 20.Bg5!? Bd8 21.Bd8 Rfd8 22.Ng5=) 20...Ne3-/+ (worse is 20...Qa2 21.Bh6 g6 22.Bf8 Bf8 23.Qf4+/-) 21.Re3 Qa2 22.Ree1 Qa3 (22...Qd5!?-/+) 23.Ra1 Qd6 24.Ne4 Qb6 25.h3?? (25.Reb1 Qc6 26.Ne5+=) 25...Bb7?? (25...f5 26.Qf4 fe4 27.Qe4-+) 26.Ne5?? Be4?? 27.Qe4-/+ Bf6 28.Nd7 Qd6?? 29.Nf8+/- Qf8 30.Ra7+- Rd8 31.Rd1 Qb4 32.Ra2 h6 33.Kh2 g6 34.Rad2 Bg5 35.Rd3 Qd6 36.Qe5?? Qe5 37.de5+/- Rd3 38.Rd3 Be7? 39.g3 Kg7 40.Kg2 1–0. Chinchwadkar,Ojas – Iyer,Shankar, California State–ch, 2006. (=1.e4 c5 2.b4 b6 3.Nf3 Nc6)

3.Nf3 d6

4.Bc4 e6 5.Bb2 Be7? (better 5...cb4 6.a3 Nc6+=) 6.Bg7+- Bf6 7.Bh8 Ba1?? (7...Bh8 8.d4 Bb7+-) 8.Ba1 Bd7 (8...cb4 9.0-0+-) 9.c3 (9.bc5!? bc5 10.0-0 Nc6+-) 9...Qc7 (9...Nf6 10.Qe2+-) 10.Qe2 (10.Na3 Nf6+-) 10...Bc6 (10...Nf6 11.Na3+-) 11.0-0 (11.bc5 bc5 12.d4 Kf8+-) 11...Nd7 (11...Nf6 12.Bd3+-) 12.d4 0-0-0 (12...Kf8 13.Nbd2+-) 13.Nbd2 (13.bc5 dc5 14.d5 ed5 15.ed5 Bb7+-) 13...Nh6 (13...Ngf6 14.Ng5 Rf8 15.Be6 fe6 16.Ne6+-) 14.Ng5 (14.Bb2 Kb8+-) 14...Rg8 (14...Nf6 15.bc5 dc5 16.f4+-) 15.Qh5 Qd8 (15...Rg6 16.Nh7 Bb7 17.Re1+-) 16.f4 (16.Nh7 Rg7 17.d5 Rh7 18.dc6 Nf6+-) 16...Qf6 (16...Rg6 17.Qh3+-) 17.Ba6 (17.d5 ed5 18.ed5 Bb7+-) 17...Kb8 (17...Kc7 18.bc5 bc5 19.d5+-) 18.bc5 dc5 (18...bc5 19.Nc4 Kc7 20.Qe2+-) 19.d5 ed5 (19...Ba4 20.de6 fe6 21.Bc4+-) 20.ed5 Bd5 (20...Bb7 21.Bb7 Kb7 22.Qh3+-) 21.c4 Qd6 (21...Qe7 22.cd5 Qe3 23.Rf2 Qe1 24.Nf1 Qa1 25.Qh6+-) 22.cd5 Nf5 23.Qf7 Nh6 24.Qe6 (better 24.Qh7 Qd5 25.Qh6+-) 24...Qf8 25.Qc6 (25.Qd7 Qc8 26.Be5 Ka8 27.Bc8 Rc8 28.Qc8) 25...Qc8 26.Bc8 Rc8 27.Qd7 Ng8 (27...Rc7 28.Be5 Kb7 29.Qc7 Ka6 30.Qc8 Ka5 31.Bc3 Kb5 32.Rb1 Ka4 33.Qa6) 28.Be5 Ka8 (28...Rc7 29.Qc7 Ka8 30.Qc6) 29.Qc8 1–0. Martinez,Augusto Gonzalez (1830) – Pizzotti,Maria C Dias (1770), Aberto do Brasil Etapa Juiz de Fora, 2016. (=1.e4 c5 2.b4 b6 3.Nf3 d6)

4.d4 cd4 5.Nd4 Nf6 6.Bb5 Nbd7 7.Nc3 Bb7= 8.Nc6?? Qc8-+ 9.e5 Bc6 10.ef6 Nf6 11.Qe2? g6 12.Bg5 Bg7-/+ 13.Bf6 Bf6 14.Nd5 Be5 15.f4= 0-0?? 16.Bc6 Ba1 17.Ne7 Kh8 18.Nc8 Rac8 19.b5 Bc3 20.Kf2 Bd4 21.Kf3 a6 22.Qd3 Bc5 23.Re1 1–0. cjack (2165) – bvanderweerd (2000), net–chess.com, 2008.

3.Nf3 e6

4.bc5 bc5 5.e5 Bb7 (5...Nc6 6.Na3=) 6.c3 (6.Nc3 Nc6=) 6...Nc6 (6...Bd5 7.Bb5=) 7.Bb5 (7.Na3 h5=) 7...Nge7 8.0-0 Ng6 9.d4 cd4 10.cd4 Be7 White has an active position 11.Bd3 (11.Nc3 d5=) 11...d6 (11...Nb4 12.Nc3=) 12.Bg6 (12.Nc3!? 0-0 13.ed6 Qd6 14.Be3=) 12...hg6+= Black has the pair of bishops 13.Ba3 de5 14.Be7 Qe7 15.de5 0-0 16.Qa4 Qb4 17.Qb4 Nb4 18.Nbd2 Bd5 19.a3 Nc2 20.Rac1 Na3 21.Rc7 Nb5 22.Re7? Rfe8 23.Rd7 Red8 24.Rd8-/+ Rd8 25.Rb1 a6 26.Nf1 Bf3-/+ 27.gf3 g5 28.Ra1 Ra8 29.Ne3 Kh7 30.Nc2 Kg6 31.Ra5 Nc7 32.Ne3 Nb5 33.Nc2 Nc3 34.Ne3 Ne2 35.Kg2 Nf4 36.Kg3?? Rc8 37.Ng2? Ne2?? 38.Kh3?? Rh8-+ 39.Kg4 Rh2 40.Ra2 Rg2 41.Kh3 Nf4 0–1. Goebl,Werner – Bischof,Rainer (2080), Bad Wildbad op, 2001. (=1.e4 c5 2.b4 b6)

4.bc5 bc5 5.g3 Bb7 6.d3 Nc6 7.Nbd2 Rc8 8.Bg2 Nf6 9.0-0 Be7 10.Rb1 Ba8 11.Nc4 d5 12.ed5 Nd5 13.Bd2 0-0 14.Re1 Nb6 15.Ne3 Re8 16.h4 f5 17.Nc4 Nc4 18.dc4 Bf6 19.Ng5 Bg5 20.Bg5 Qc7 21.c3 h6 22.Bf4 e5 23.Bd5 Kh8 24.Qh5 Rf8 25.Be3 e4 26.Rb5 Ne5 27.Bf4 Qe7 28.Be5 Qe5 29.Re4 Qc3 30.Re6 Qc1 31.Kg2 Bd5 32.cd5 Qc4 33.Rh6 gh6 34.Qh6 Kg8 35.Qe6 Kh8 ½–½. Shirazi,K (2405) – Spraggett,K (2575), XXIV Open Metz FRA (3), 2006.

3.f4 Bb7

4.bc5 bc5 5.Nc3 Nc6+=.

4.bc5 Be4 5.Nc3 Bc6 =.

4.d3 cb4 5.Nf3 -/+.

4.d3 d5 5.e5 (5.bc5 de4 6.cb6 ab6 7.de4 Qd1 8.Kd1 Be4=) 5...e6 (5...cb4 6.d4+=) 6.Nf3 (6.bc5 bc5 7.Nf3 Ne7=) 6...Ne7 (6...cb4 7.d4+=) 7.bc5= bc5 8.Nc3 Nbc6 9.Rb1 Rb8 10.g4 Ng6 11.Bh3 Nd4 12.0-0 Nf3 13.Qf3 Be7 14.g5 Nh4 15.Qh5 Nf5 16.Bf5 ef5 17.e6 g6 18.ef7 Kf7 19.Qf3 Qd7 20.Rb7 Rb7 21.Nd5 Rd8 22.c4 Rb1 23.Re1 Re8 24.Qh3 (24.Qf2!?+=) 24...Bf8 25.Rf1 (25.Qh7? Bg7 26.Qh4 Re1 27.Qe1 Bb2-+) 25...Bg7 26.Be3 Rf1 (26...Re3 27.Ne3 (27.Qe3? Bd4 28.Rb1 Be3 29.Ne3 Qd4-+) 27...Qd3 28.Rb1 Qb1 29.Kf2 Qa2 30.Ke1 Qa1 31.Ke2 Qb2 32.Kf3-+) 27.Kf1 Qb7 28.Bc5 (better is 28.Kg1!?-/+) 28...Qb1-+ 29.Kg2 Re2 30.Bf2 Qc2 (30...Qa2?! 31.Qf3+=; 30...Ra2?! 31.Qe3 Qb7 32.Kf3+=) 31.Qf3 Rf2?? (better is 31...Bd4! 32.Ne3 Rf2 (32...Qa2?! 33.Qd5 Kf8 34.Qd8 Kf7 35.Qd5 Kf8 36.Qd8 Kf7 37.Qd5=) 33.Qf2 Qd3-/+) 32.Qf2+- Qf2 33.Kf2 a5 34.Ke3 a4 35.d4 a3 36.Nb4 Ke6 37.Kd3 Bf8 38.c5 h6 39.h4 hg5 40.hg5 Be7 41.Kc4 Bd8 42.d5 Kd7 43.Kb3 Bc7 44.Nd3 Bd6 45.Ka3 Bc5 46.Nc5 Kd6 47.Nd3 Kd5 48.Ne5 (48.Ne5 Ke6 49.Ng6+-) 1–0. Lai,Luca (1870) – Gallucci,Alessio (1655), ITA–ch U20 Bratto, 2005. (=1.e4 c5 2.b4 b6 3.f4 Bb7)

4.d3 e6 5.Nf3 d6 6.bc5 bc5 7.Nbd2 (7.Nc3!? Nc6 8.Rb1+=) 7...Nc6= 8.Be2 Nf6 9.h3 (9.0-0 Be7=) 9...Nh5 10.Nf1 (10.Rb1 Rb8=+) 10...Be7 11.Rg1 (11.Kf2 0-0=+) 11...e5 12.f5 (12.Rb1 Rb8 13.fe5 de5=+) 12...Nf4 (12...0-0 13.Kf2=+) 13.Bf4=+ ef4 14.g3 fg3 15.Ng3 Bf6 16.Rb1 Rb8 17.Kf1 g6 18.Qd2 Nd4 19.Nd4 (better 19.Kg2!?-/+) 19...Bd4-+ (19...cd4?! 20.Qh6-/+) 20.Rg2 (20.Qh6 Bc6 21.Kg2 Bg1 22.Rg1 Qf6-+) 20...Qh4?? (20...Be4!? 21.Rb8 Bg2 22.Kg2 Qb8 23.c3-+) 21.Bg4 (21.Rb3!?-/+) 21...0-0-+ 22.Ne2?? (better 22.c3 Be5 23.Qe1-+) 22...Be4! 23.Rb8 (23.de4 gf5 Double attack (23...Rb1 Discovered attack; 23...gf5 Decoy)) 23...Bg2 24.Kg2 Rb8 (better 24...Qf2 25.Kh1 Rb8 26.Nd4 Qd2-+) 25.Nd4 cd4 26.fg6 hg6 27.Qc1 (27.a4 f5 28.Bd1 Kg7-+) 27...Qd8 (better 27...f5!? 28.Bf3 f4 29.Qd1-+) 28.Kg3 Qa5 29.Qf4 (29.Bf3 Qe5 30.Kg2 Kg7-+) 29...Qe5 0–1. Mereu,Matteo – Stella,Andrea (2120), ITA–ch U20, 2006. (=1.e4 c5 2.b4 b6 3.f4 Bb7)

4.e5 cb4 5.Nf3+=.

4.e5 d6 5.Bb2 (5.bc5 de5 6.cb6 ef4 7.ba7 Nd7=) 5...Nc6 (5...cb4!? 6.Nf3 e6+=) 6.bc5= bc5 7.Bb5 a6 8.Ba4 Qc7 9.Nf3 0-0-0 (9...e6 10.0-0+=) 10.ed6 ed6 11.0-0 c4 12.Bc6 Bc6 13.Bd4 Nh6 14.Nc3 Nf5 15.Bf2 h5 16.Rb1 Re8 17.d4 d5 18.Ne5 Bd6 (18...f6!? 19.Nc6 Qc6+/-) 19.Qf3 (19.Nc6?! Qc6 20.Qf3 Ne7+=) 19...Be5 20.fe5 (20.de5?! d4 21.Nd5 Rd8 22.Nc7 Bf3 23.Na6 Bb7+/-; 20.Nd5 Nd4 21.Qh3 Bd7-/+) 20...Qd7 21.Rb6 Kc7 22.Rfb1 Ra8 23.Na4! Qc8? (23...Ba4 24.Rb7 Double attack) 24.Nc5 g6 25.e6! fe6 (25...Kd8 26.Bh4 Ke8 27.Qf4+-) 26.Bg3 (26.Qf4!? Kd8 27.Qg5 Ke8 28.Qg6 Ke7+-) 26...Kd8 27.Rb8 Rb8 28.Rb8 Qb8 29.Bb8 Ke7 (29...Re8 30.Be5 a5 31.Qc3+-) 30.Be5 (30.Qf4 Kf7 31.Qc7 Ne7+-) 30...Rf8 31.Qa3 Rf7 (31...Kf7 32.Ne6! Rc8 33.Ng7 Ng7 34.Qa6+-) 32.Ne4 Ke8 33.Nf6 (33.Nf6 Rf6 34.Bf6+-) 1–0. Anderson,George – Degroot,Stephen, Winnipeg Winter op, 2004. (=1.e4 c5 2.b4 b6 3.f4 Bb7)

4.e5 e6 5.Nf3 Ne7 (5...cb4 6.d4+=) 6.a3 (6.bc5 bc5 7.Nc3 Nbc6=) 6...Nd5 7.d4 cb4 8.Bd2 a5 9.ab4 ab4 10.Ra8 Ba8 11.c4 bc3 12.Nc3 (12.Nc3 Bb4 Decoy; 12.Bc3 Nf4 Deflection) 12...Nc3 13.Bc3 Qc7 14.Qd2 Be7 15.Bd3 0-0 16.0-0 h6 17.f5 ef5 18.Bf5 Bd5 19.Bb2 Qb7 20.Bb1 Be4 21.Ba2 b5 22.Bb3 Bd5 23.Bc2 Be4 24.Bb3 Na6 25.Kh1 Nc7 26.Qe3 Bd5 27.Bc2 Bc4 28.Rf2 f5 29.ef6 Bf6 30.Ne5 Qd5 31.Be4 Qd6 (31...Qe6!?+=) 32.Ba3+= (worse is 32.Nc4 bc4 33.Ba3 Qa6-/+) 32...Ra8?? (better is 32...Qa6 33.Nd7 Rf7 34.Nf6 Rf6 35.Rf6 Qf6=) 33.Ba8+- (33.Bd6 Ra1 34.Rf1 Rf1 35.Qg1 Rg1 36.Kg1 Ne8-/+) 33...Qa6 (33...b4 34.Nc4 Qd4 35.Qd4 Bd4 36.Rd2 ba3 37.Na3+-) 34.Be4 (34.Nd7 Qa8 35.Nf6 Kh8+-) 34...b4 35.Bb4 Qa1 36.Qe1 Qd4 37.Nc4 Qc4 38.Rc2 Qd4 39.Rc7 d5 40.Bg6 (40.Bg6 Qb4 41.Qe6 Kh8 42.Qe8 Qf8 43.Qf8) 1–0. Yche,M (1945) – Come,A (2200), Avoine FRA, 2012. (=1.e4 c5 2.b4 b6 3.f4 Bb7)

2...c4??

3.Bc4 Nc6 4.Bb3 Nb4 5.Nf3 e6 6.0-0 d5 (6...Be7 7.d4 d5 8.ed5 ed5 9.Ne5+/-) 7.ed5+- Nd5 8.Re1 (8.c4 Nf4 9.Nc3 Nd3+/-) 8...Ngf6+/- 9.c4 Nb6 (9...Nb4 10.d4 Be7 11.Nc3+/-) 10.d4 Be7 (10...Bb4 11.Bd2 Bd2 12.Qd2+/-) 11.Ne5 (11.Nc3 0-0+-) 11...0-0 12.Nc3 Nbd7 13.Bc2 (better 13.Nd3!?+/-) 13...Ne5+= 14.de5 (14.Re5 Bd6 15.Re2 Bd7+/-) 14...Qd1= 15.Rd1 Ng4 16.Bf4 Bc5 (16...f6 17.Ne4 Ne5 18.c5=) 17.Rd2 (17.Ne4 Bb6+/-) 17...Nf2? (better 17...f6 18.Ne4 fe5 19.Nc5 ef4=) 18.Rf2+- Bd7 (18...Bd4 19.Bd2+/-) 19.Ne4 Bf2 20.Kf2 Bc6 21.Ke3 (21.Kg3 Rad8+-) 21...f6 22.ef6 gf6 23.Bd6 Rf7 24.c5 Kg7 (24...f5 25.Ng5 Rf6 26.Bb3+-) 25.Rf1 (better 25.g4+-) 25...f5? (25...Bd5 26.g4 Be4 27.Be4+-) 26.Ng3 (better 26.Be5!? Kf8 27.Nd6 Re7+-) 26...Kf6 (26...Kh6 27.Bb3+/-) 27.Kf4 (27.h4 Kg6+- (27...Bg2?? 28.Nh5 Kg6 29.Nf4 Kf6 30.Ng2+-)) 27...Rg8+/- 28.Be5 Ke7 29.Bd6 Kf6 30.Be5 Ke7 31.Bd6 (31.Rf2 Rg4 32.Ke3 Bd5+/-) 31...Kd7 (31...Kf6!?=) 32.Bb3 (32.Rf2+/-) 32...Rg4 (32...Bg2 33.Rd1+/-) 33.Ke3 (33.Ke5!? Rg6 34.Nh5 Bg2+-) 33...h5 (33...Bg2 34.Rd1+=) 34.Kd2 (34.Nh5!? Bg2 35.Rb1+-) 34...h4 35.Ne2 (35.Nh5 Bg2 36.Re1 Bd5+=) 35...Rg2= 36.Kd3?? (better 36.Bc4=) 36...Bb5-+ 37.Kd4 (37.Kc3 Be2 38.Rf4 Rh2-+) 37...Be2 (better 37...Re2 38.Rb1 Rg7 39.Be6 Ke6 40.Rb5 Ra2-+) 38.Ke5 (38.Rf4 Bg4 39.Kc3-+) 38...Rg4 (better 38...Bf1 39.Be6 Ke8 40.Bf7 Kf7 41.Kf5 Bd3 42.Ke5 Rh2-+) 39.Be6-/+ Ke8 (better 39...Kd8 40.Rf5 Rf5 41.Bf5 Rb4-+) 40.Bf7= Kf7 41.Rf5 Kg6 42.Rf4 Rg5 43.Ke6 Bg4 44.Ke7 Bf5 45.Be5 h3 0-1. Seppo (2530) - Lance5500 (2750), lichess.org, 2016. (=1.e4 c5 2.b4)

3.Bc4+/- e5 4.Nf3 Bb4 5.c3 Bc5 6.0-0 Bd6 +-. amayfer (1820) – zeca (1795), net–chess.com, 2009.

3.Bc4 d6

4.Nf3+- Nc6 5.Nc3 Nb4 6.Rb1 Nc6 7.0-0 Nf6 8.d4 e6 9.d5 Ne7? 10.de6 fe6 11.Ng5 d5 12.ed5 ed5 13.Bb5 Bd7 14.Bf4 Bb5 15.Nb5 Rc8 16.Nd6 Kd7 17.Qe2 Rc6 18.Qe6 Kc7 19.Rb7 1–0. pierre – opponent, internet, 2009.

4.Nf3 g6 5.Bb2 Nf6 6.0-0 Bg7 7.Qe2 0-0 8.d4 d5 9.ed5 Nd5 10.Bd5 Qd5 11.Qe7 Nc6 12.Qc5 Qe4 (12...Be6!?+/-) 13.Nbd2 Qf4 14.b5 Nd8 15.Rfe1 Ne6 16.Re4 Qe4 17.Qf8! (17.Ne4?! Nc5 18.Nc5 Re8=) 17...Bf8 (17...Nf8 18.Ne4 Zwischenzug; 17...Bf8 18.Ne4 Zwischenzug; 17...Kf8 18.Ba3 Decoy (18.Ne4 Zwischenzug)) 18.Ne4 b6 19.d5 Nf4 (19...Nc5 20.Nf6 Kg7 21.Ne8 Kg8+-) 20.Nf6 Kg7 21.Nh5 Kg8 22.Nf4 Bd7 23.c4 Rc8 24.Rc1 Bh6 25.g3 Bg4 26.Ne5 1–0. Nytra,Matej (1655) – Med,Matej, CZE–ch U12 Czechia, 2004. (=1.e4 c5 2.b4 c4)

3.Bc4 e6

4.a3 Nc6 5.Bb2 a6 6.e5 b5 7.Bb3 Nge7 8.Nf3 Ng6 9.d4 Be7 10.Qd2 d5 11.0-0 0-0 12.Nc3 f6 13.Rfe1 Qc7 14.ef6+/- Bf6 15.Ne2 Bd7 16.Ng3 Rae8 17.Rac1 Qd6 18.Nh5 Nge7 19.Ne5 Nf5 20.Nf6+- Rf6 21.Re2 Rh6 22.h3 Rf8+/- 23.f4 Be8 24.Qd3 Bg6 25.Qd2 Ng3 26.Rf2?? Ne4-/+ 27.Qe3 Nf2 28.Qf2 Be4 29.Re1 Ne5 30.de5 Qe7 31.Bd4 Qh4 32.Qh4= Rh4 33.Be3 Rc8 34.Re2 Rc3 35.Bd2 Rc6 36.Bc1 Rh5 37.Kh2 Rf5 38.g4 Rf8 39.f5 Kh8 40.fe6= Re8 41.Bb2 Ree6 42.Kg3 Re8 43.Rf2 h6 44.Rf7 Ree6 45.Rf2 Kh7 46.Re2 g5 47.Re4 de4=+ 48.Be6 Re6 49.Kf2? Rc6-/+ 50.c3? Kg6 51.Ke3? Rc4 0–1. giveaway (2390) – kode (2375), net–chess.com, 2008.

4.a3 Qc7 5.Qe2 a6 6.Nc3 Nc6 7.Nf3 Be7 8.b5 ab5 9.Nb5 Qb6 10.Rb1 Qd8 11.0-0 Nf6 12.e5 Nh5 13.d4 g6 14.Bh6 Bf8 15.Bg5 Be7 16.Be7 Ke7 17.Nd6 Ng7 18.Ng5 Rf8 19.d5 Nd4 20.Qg4 Ndf5 21.Ngf7 Nd6 22.Nd8 Nc4 23.d6 Kd8 24.Qg5 (24.Qg5 Rf6 25.Qf6 Ke8 26.Qe7) 1–0. usingprogram – foorpeet, internet, 2011.

4.Bb2 Nc6 5.b5 Nce7 6.Nc3 Nf6 7.e5+- Nfg8 8.Ne4 b6?? 9.Nd6 1–0. luiilii (2360) – zeca (1645), net–chess.com, 2010.

4.Ne2 d5 5.ed5 ed5 6.Bb5 Bd7 7.Nbc3+- Bb4 8.Rb1 Bb5 9.Rb4 Bc6 10.Ba3 Ne7 11.0-0 0-0 12.Nd4 Re8 13.Re1 a5 14.Rb1 Qc7?? (better 14...Na6+-) 15.Qe2+- Nd7 (15...Qf4 16.Nc6 (16.Be7?! Qd4 17.a3 Qc4+=) 16...bc6 17.Rb7+-) 16.Be7 Nf8 (16...Qf4 17.Ncb5 Bb5 18.Nb5+- (worse 18.Qb5 Qd4 19.Qd7 Qd2+-; 18.Rb5?! Qd4 19.c3 Qc4 20.Rb7 Nc5 21.Qc4 dc4+-)) 17.Ncb5 Qd7 (17...Bb5 18.Nb5 (18.Qb5?! Re7 19.Re7 Qe7+-; 18.Rb5?! Ng6+-) 18...Qd7 19.Nd6+-) 18.Nd6 Re7 (18...Ne6 19.Nc6 Qc6 20.Ne8 Re8+-) 19.Qe7 Qe7 (19...a4 20.Nf7 Qe7 21.Re7+-) 20.Re7 Ne6 21.Ne6 fe6 22.Re1 Rd8 (22...d4 23.R1e6 Rf8 24.Rc7+-) 23.R1e6 h6 (23...Ba4+-) 24.Nf5 Bd7 25.Rg7 Kf8 26.Rf6 (26.Rf6 Ke8 27.Re7) 1–0. Karl – Tyejl, internet private, 2018. (=1.e4 c5 2.b4 c4 3.Bc4 e6)

2...Nc6

3.a3 cb4 4.ab4 Nb4=+.

3.a3 e5 4.f4 (better 4.b5 Nd4 5.c3=) 4...cb4 5.Nf3 ef4 6.d4 g5 (6...d5 7.Qe2 de4 8.Qe4 Qe7 9.Qe7 Nge7 10.Bb5-/+) 7.Bc4 (7.d5 g4 8.dc6 gf3 9.cb7 fg2 10.bc8Q gf1Q (10...Qc8? 11.Bg2 Bg7 12.e5+-; 10...gf1R?! 11.Rf1 Rc8 12.Rf4-/+) 11.Kf1 Qc8 12.ab4 Bg7-/+) 7...h6 (better 7...g4!? 8.Ne5 Qh4 9.Ke2 Ne5 10.de5 Bc5-/+) 8.ab4 Bg7 (8...g4!? 9.Ng1 f3 10.gf3 Qh4 11.Kf1 Bb4-/+) 9.c3 Nf6 (9...g4 10.Nfd2 Qh4 11.Ke2=) 10.b5 (10.e5 Ng4+=) 10...Ne7= 11.e5 Nh7 (11...Ne4!?=) 12.Qb3 0-0 13.Ba3 Nf5 (13...g4!? 14.Nfd2 d5 15.ed6 Nf5+=) 14.Bf8+- Qf8 15.0-0 Ne3 16.Re1 d5 (16...g4 17.Nh4 Nc4 18.Qc4+-) 17.ed6! Bf5 (17...Qd6 18.Bf7 Deflection) 18.Ne5 (18.Na3 Rc8+-) 18...Be5 19.de5 g4? (19...Nc2 20.Nd2 Na1 21.Ra1 Qg7+-) 20.Nd2 Ng5 21.Nf1 (better 21.Re2!?+-) 21...Nc2+- 22.Rad1 Ne1 23.Re1 Qd8 24.Qd1 b6 (better 24...f3!?+-) 25.Qd4+- f3 26.Ne3 (26.Qf4 Bd7+-) 26...fg2+- 27.Bd5 Be6 28.Bg2 (28.Ba8?? Qa8 29.Ng2 Nf3 30.Kh1 Nd4 31.cd4 Bd5-+) 28...Nf3 29.Bf3 gf3 30.Kf2 Kh8 31.Rg1 Rc8 32.Nd5 Rc5 (32...h5 33.Nf6 Bg4+-) 33.Qf4 Qf8 (33...Qg5 34.Rg5 hg5 35.Qf6 Kh7+-) 34.Nf6 (34.Nf6 Bg4 35.Rg4 Rc8 36.Rg8 Qg8 37.Qh6 Qh7 38.Qh7) 1–0. Frink,Ferenc (2120) – Kabyzhanov,Bulat (2040), ch–Chess Disabled, 2015. (=1.e4 c5 2.b4 Nc6)

3.Bb2 e5 4.Nf3 Qc7 (4...cb4!? 5.Bb5 f6=+) 5.b5= Nd4 6.c3 Ne6 7.d4 cd4 8.cd4 Bb4 9.Nbd2 Nf6 (9...ed4 10.Nd4 (worse 10.Bd4 Nd4 11.Nd4 Nf6=+) 10...Nf6 11.f3+=) 10.Rc1 (worse 10.Ne5 Ne4 11.Nef3 0-0-/+; worse 10.de5 Ne4 11.Be2 d6=) 10...Qa5 11.d5 (worse 11.Ne5 Ne4 12.Nec4 Qa2-/+) 11...Nc5 12.Ne5 (12.a3!? Bd2 13.Qd2+-) 12...Nce4= 13.Nec4 Bd2 (13...Qa2 14.Bf6 Bd2 (14...Nf6? 15.Rc2 Qa4 16.Nd6 Bd6 17.Rc8 Rc8 18.Qa4+-) 15.Nd2 Nf6=) 14.Qd2+- Nd2 (14...Qd8 15.Qd4 Qe7 16.Be2+-) 15.Na5 Nde4 16.f3 Nd6 17.Ba3 Nf5 18.Nc4 h5 19.Bd3 Nh6 20.Nd6 (20.b6!? Kd8 21.ba7 Ra7+-) 20...Kd8 21.Kf2 Ne8?? (better 21...Nd5 22.Be4 Nb6+-) 22.Rhe1 Nc7 23.Nf7! Nf7 24.Be7 Ke8 25.Rc7 d6 (25...Rh6+-) 26.Bg6 (26.Bg6 Bd7 27.Rb7+-) 1–0. Ilic,An (1890) – Desoye,Gernot (1765), 7th Arber Open, 2018. (=1.e4 c5 2.b4 Nc6)

3.b5 e5? 4.bc6+- bc6 5.Nf3 d6 6.c3 Be7 7.Bc4 Nf6 8.0-0 (8.Qa4 Bd7+-) 8...Ne4 9.d3 (9.Qa4 Nf6 10.Bd5 Nd5 11.Qc6 Bd7 12.Qd5 Qc8+/-) 9...Nf6+/- 10.d4 (10.Re1 0-0+/-) 10...cd4 11.cd4 e4 12.Ng5 (12.Nfd2!?+/-) 12...d5+= 13.Be2 h6 14.Nh3 Bh3 15.gh3 Qd7 16.Kh1 Qh3 17.Bf4 g5 (17...0-0 18.f3=) 18.Bg3 h5 19.Rg1 (19.Qa4 Qd7+/-) 19...h4 20.Bf1?? (20.Be5 Qf5 21.Qa4+-) 20...Qf5?? (better 20...Qg4 21.Qc2 hg3 22.Qc6 Kf8 23.Rg3 Qc8-+) 21.Be5= Bd6?? (21...Rh6 22.Ba6 Nd7= (worse 22...Qf2 23.Bb7 Rd8 24.Nd2=)) 22.Qe2 (better 22.Bd6 Qf2 23.Qc1+-) 22...Be5-+ 23.de5 Qe5 24.f4?? (24.Qc2 Qa1 25.Qc6 Ke7 26.Qc7 Ke6 27.Rg5 Nd7 28.Bh3 f5 29.Bf5 Kf6=) 24...gf4 (better 24...Qa1 25.Qc2 0-0 26.fg5-+) 25.Nc3?? (25.Qa6 Qe6 (25...Qa1?! 26.Qc6 Nd7 27.Qa8 Ke7 28.Qd5=) 26.Nc3 Rd8-+) 25...f3 (25...Qc3 26.Qd1 Qe3 27.Rb1-+) 26.Qf2 (26.Qc2 e3 27.Bd3 Nh5-+) 26...Ng4 (better 26...Qc3 27.Bh3 c5-+) 27.Rg4 Qc3 28.Re4?? (better 28.Re1-+) 28...de4 29.Re1 Qd4 (better 29...f5 30.Re3 Qe5 31.Qf3 Rb8-+) 30.Re4 (better 30.Qd4 Rh6 31.Re4 Kf8 32.Rg4+-) 30...Qe4-+ 31.Qc5 (31.Qc5 f2 32.Bg2 Qe1 33.Bf1 Qf1). lamorocha (2440) - opperwezen (2750), lichess.org, 2020. (=1.e4 c5 2.b4 Nc6)

3.bc5 Nf6 4.e5 Ne5 5.d4 Nc6 6.Nf3 e6 7.c4 b6 8.Nc3 bc5 9.d5 ed5 10.cd5 Nb4 11.a3 Qa5? (better 11...Na6=) 12.Bd2+- Rb8? (better 12...Qd8 13.ab4 cb4+-) 13.ab4 Qb4 (13...Qb6+-) 14.Rb1 (14.Rb1 Qb1 15.Nb1 (15.Qb1?! Rb1 16.Nb1 Nd5=) 15...Nd5 16.Bc4+-) 1-0. juliangon – Namecheck, ChessWorld.net, 2022. (=1.e4 c5 2.b4 Nc6)

3.Nf3 cb4 4.d4 e6 (--> 1.b4 c5 2.d4 cb4 3.e4 e6 4.Nf3 Nc6).

3.b5 Nb8

4.Bb2 d6 5.Nf3 Nf6 6.Nc3 Bg4 7.h3 Bf3 8.Qf3 e5 9.Bc4 Be7 10.d3 0-0 11.0-0 Nbd7 12.a4 Ne8 13.Ne2 g6 14.Bc1 Bg5 15.Bg5 Qg5 16.Qe3 Qe3 17.fe3 Kg7 18.Rf2 f6 19.a5 Nc7 20.g4 Rh8 21.Ng3 b6 22.a6 Rad8 23.Raf1 Rhe8 24.Kg2 Ne6 25.Bd5 Nc7 26.Bc4 Rf8 27.Ne2 h6 28.Kg3 Nb8 29.Nc3 Rd7 30.h4 Rdd8 31.Nd5 Nd5 32.Bd5 g5 33.hg5 fg5?? 34.Rf7+- Rf7 35.Rf7 Kg6 36.Ra7 1–0. Golek,Jagoda (1970) – Kupczyk,Edyta (2085), Polish TCh – 2ndLeague'06 Poland, 2006.

4.c4 b6 5.Nc3 d6 6.f4 e6 7.Nf3 Be7 8.Bb2 Nf6 9.e5 de5 10.fe5 Nfd7 11.Bd3 Bb7 12.Ne4 h6 13.Qe2 Nc6?? (better is 13...a6+=) 14.Nd6 Bd6 15.ed6 (better is 15.bc6 Bc6 16.ed6+-) 15...0-0?? (15...Nd4 16.Nd4 cd4 17.Bd4 Qh4 18.Qf2 Qf2 19.Kf2 Rd8 20.Bg7 Rg8=) 16.Qe4+- Nf6 17.Bf6 g6 18.Bd8 Rad8 19.Qg4 Kg7 20.0-0 Rd6 21.Be4 Ba8 22.Qg3 e5 23.Bc6 Bc6 24.Qe5 Rf6 25.bc6 g5 26.Rfe1 Kg6 27.c7 Re6 28.Qe6! fe6 29.Re6 Kf5 30.Rh6 Rc8 31.Rc6 g4+- 32.Nh4 Kg5 33.g3 b5 34.Rf1 bc4 35.Rf5 1–0. Anchondo,Francisco – Svindahl,Jan, Internet Section, 2004. (=1.e4 c5 2.b4 Nc6)

3.b5 Nd4

4.c3 Nb5??N 5.Bb5+- a6 6.Be2 g6 7.Nf3 Bg7 8.0-0 e6 9.d4 cd4 10.cd4 Ne7 11.Nc3 0-0 12.Bg5 Re8 13.Qb3 Qc7 14.Rac1 Qd6 15.e5 Qb8 16.Ne4 Nf5 17.Nf6 Bf6 18.Bf6 b5 19.g4 Ne7 20.Qe3 Nd5 21.Qh6 (21.Qh6 Nf6 22.ef6 Qh2 23.Kh2 Bb7 24.Qg7) 1–0. marre – ddqo, internet, 2010.

4.c3 Ne6 5.a4 Qc7 6.Nf3+= b6 7.Na3 Bb7= 8.e5 Rc8 9.Nc4= Be4 10.a5+= Nf4 11.d3+/- Bf3 12.Qf3 Ne6 13.ab6 ab6 14.Be2 Nh6 15.0-0 g6 16.Qh3 Nf5 17.g4 Nfg7 18.f4 h5 19.f5 gf5 20.gf5 Nd8 21.Qg2 f6?? 22.Bf4 Nf7 23.ef6 ef6 24.Bc7 Rc7 25.Ra8 Nd8 26.Nb6 Rh7 27.Qg6 (27.Qg6 Ke7 28.Nd5 Kd6 29.Qg3 Kd5 30.Bf3) 1–0. ygfr – wesa, internet, 2009.

4.c3 Ne6 5.a4 d5 6.d3 d4 7.c4 Qc7 8.g3 h5 9.Bg2 g5 10.Nf3 g4 11.Nfd2 Nf6 12.0-0 h4=+ 13.Nb3 hg3 14.fg3=+ Bg7 15.N1d2 Bd7 16.Ba3 b6?? 17.Qe2?? 0-0-0 18.e5+= Ng8 19.Rf7 Be8 (19...Be8 20.Rf2 Nh6+/- (20...Be5? 21.Re1+-)). zurbateur (1655) – paolog (2105), net–chess.com, 2008.

3.b5 Ne5

4.Bb2 d6 5.f4 Ng6 6.f5 Ne5 7.Nf3 Qc7 (7...e6!?=) 8.Ne5+= de5 9.Bc4 Nf6 10.d3 (10.0-0 a6+- (worse 10...Ne4 11.Qh5+-)) 10...e6 (10...g6 11.Qf3+=) 11.fe6 Be6 12.Be6 fe6 13.0-0 (13.Na3 Bd6+-) 13...Bd6 (13...c4!? 14.Kh1 Rd8=) 14.Nd2 0-0 (14...a6 15.a4+-) 15.Nc4 Rad8 (15...Qd7 16.a4+- (worse 16.Nd6 Qd6 17.Qe2 c4+=)) 16.a4 b6 (16...Rd7 17.a5+-) 17.Qe2 (17.Qd2 a5+-) 17...Rde8 (17...Rf7 18.a5+-) 18.Rf3 (18.Qe3 Nd7+-) 18...Nd7 (18...Ra8 19.a5+-) 19.Raf1 Rf3 20.Rf3 (20.gf3?! Rf8+-) 20...Qd8?? (better 20...Nf6+-) 21.Nd6 1–0. Hilbert,Stephan J (1735) – Vollmer,Steve, FICGS, 2015. (=1.e4 c5 2.b4 Nc6 3.b5 Ne5)

4.Nc3+= d6 5.Nf3 Bg4 6.Be2+= Bf3 7.Bf3 Nf6 8.0-0 e6 9.Be2+/- d5 10.f4 Ned7 11.ed5+- c4 12.de6 Bc5 13.Kh1 fe6 14.Bc4 Qe7 15.Re1 e5 16.Nd5 Nd5 17.Bd5 0-0-0 18.Qf3 Nf6 19.Re5 Qc7 20.Bb7! Qb7 21.Rc5 Kb8 22.d3 Qf3 23.gf3 Rc8 24.Be3 Rc5 25.Bc5 Kb7 26.Rg1 Nd7 27.Rg7 Rd8 28.Rh7 a6 29.Bd4 ab5 30.Bf6 Kc7 31.Bd8 Kd8 32.Rd7! Kd7 33.c3 1–0. wyssy – ante, internet, 2011.

4.Be2 Nf6 5.Nf3 d6 6.Ne5 de5 7.Nc3 e6 8.0-0 Qc7 9.Bc4 Be7 10.d3 h6 11.a4 b6 12.Bb2 a6 13.ba6 Ba6 14.Nb5 Bb5 15.Bb5 Nd7 16.Bd7 Qd7 17.Be5 Ra4 18.Ra4 Qa4 19.Bg7 Rh7 20.Be5 f6 21.Qg4 Kd7 22.Ra1 Qc2 23.Qg8 fe5 24.Ra7 Kd6 25.Qb8 Black resigned 1–0. Bazza3 – Backdoor, 2006. (=1.e4 c5 2.b4 Nc6)

3.bc5 e5

4.Ba3 Qa5 5.Nf3 Nf6 6.Bc4 Bc5 7.Bc5 Qc5 8.Qe2 0-0 9.0-0 Nh5 10.d3 Nf4 11.Qd2 b5 12.Bb3 Nd4 13.Qd1 (13.Qe3 Nf3 14.Qf3 Qd4+=) 13...d6 14.Nd4 ed4 (14...Qd4 15.c3 Qd3 16.Qd3 Nd3+=) 15.Nd2 (15.g3 Qg5=) 15...Qg5 (better is 15...Bh3!? 16.Bd5 Bg2-/+) 16.g3+= Nh3 (16...Qg6 17.Kh1 Bh3 18.Rg1=) 17.Kg2 Nf4 18.Kh1 Nh5 (18...Bh3 19.Rg1 Ng6 20.Bd5=) 19.f4 Ng3 (better is 19...Qh6 20.Qe1 Bh3+=) 20.hg3+/- Qg3 21.Qf3 Qh4 22.Kg2 Qg4 (22...Bg4 23.Qg3 Qg3 24.Kg3+-) 23.Qg4 (23.Qg3 Qg3 24.Kg3 Bb7+-) 23...Bg4 24.Kg3 h5 25.Nf3 g6 (better is 25...Bf3 26.Kf3 Kh7+-) 26.Nd4 Kg7 (26...a6+-) 27.Nb5 Rad8 28.Nc3 Bd7 29.Nd5 Rh8 30.Kh4 Rde8 31.Rae1 f6 32.Re3 Rhf8 33.Rg1 Kh6 34.Rf3 Bg4 35.Rf2 g5 36.Kg3 gf4 37.Rf4 Kg5 38.Rh1 f5 39.Nc7 h4?? 40.Kh2 a5?? 41.Ne6 Kh5?? 42.Nf8+- Rf8 43.ef5 (43.ef5 Rf5 44.Rg4 Kg4 45.Be6+-) 1–0. Grekh,Andrey – Shvets,Sergey, UKR–ch U12 Simferopol, 2000. (=1.e4 c5 2.b4 Nc6)

4.Nc3 Bc5 5.Bc4 Nf6 6.Nf3 d6 7.0-0 0-0 8.a4 Bb4 9.Na2 Ba5 10.Re1 Ne4=+ 11.Ne5? de5-+ 12.Re4 Bf5 13.Re1 Qd4 14.Ba3 Qc4 15.Bf8 Rf8 16.c3 Rd8 17.Re3 Bb6 18.Qe2 Bd3 (18...Bd3 19.Rd3 Qd3 (19...Rd3?! 20.Nc1 e4 21.Nd3 Qd3 22.Qd3 ed3 23.Rb1-+) 20.Qd3 Rd3-+) 0–1. Donders,Bart – de Leeuw,Dirk, IECC, 1998.

4.Nc3 Bc5 5.Nf3 f5 6.Rb1 Nf6 7.Bb5?? d6?? 8.Qe2 0-0 9.0-0 Nd4 10.Nd4 ed4 11.Qc4 Kh8-/+ 12.e5 Ng4 13.Na4 Ne5 14.Qd5=+ Qe7 15.Nc5= dc5 16.f4 Ng6 17.Ba3 Qe4 18.Qc5 a6? 19.Bd3+- Qe8 20.Qd4 Qd8 21.Qd8 Rd8 22.g3 b5+/- 23.Rfe1 Bb7 24.Rbd1 Bf3 25.Be2 Be4 26.d3+- Bb7 27.Bf1 Rac8 28.c4 Bf3 29.Rc1 bc4 30.Rc4 Bd5 31.Rc8 Rc8 32.Re2 h6? 33.Bh3+- Rd8 34.Bf5 Bf7 35.Rd2 Rd5 36.Be4 Ra5 37.Bb4 Ra2 38.Ra2 Ba2 39.Bg6 Kg8 40.Kf2 1–0. Gross,Markus – Mont Reynaud,Jordy, San Mateo op, 1992.

2...d5

3.a3 de4 4.bc5 e5 5.Nc3 Nf6 6.Bc4 (6.Bb5 Nc6 7.Qe2 Bc5 8.Bc6 bc6 9.Ne4 Ne4 10.Qe4 Qf6-/+) 6...Bc5 7.Nge2 0-0 8.0-0 Bf5 9.Ng3 Bg6 10.Qe2 Nc6 11.Nce4 Ne4 12.Ne4 Nd4 13.Qd3 Bb6 (13...Qh4 14.Bd5 Rfd8 15.Bf7 Kf7 16.Qc4 Ke8 17.d3 Be4 18.de4-+) 14.c3? (14.Bb2 Qh4 15.Rae1 Rfd8-/+) 14...Rc8 (better 14...Qh4!? 15.cd4 Be4 16.Qe2 Bd4 17.Ra2-+) 15.cd4 (15.Bb2 Ne6 16.Qd8 Rfd8 (16...Bd8?! 17.Be6 fe6 18.Rae1=+; 16...Nd8?! 17.Bd5=+) 17.Be6 fe6-+) 15...Be4 (15...Qd4!? 16.Qd4 Bd4-+ (16...ed4? 17.Bd3+-)) 16.Qe4-/+ Rc4 17.Qb7 (17.Qe5 Bd4 18.Qe2 Rc6=+) 17...Rd4 (17...Qd4 18.Rb1 Qd3 19.Rb4 Bf2 20.Kf2 Rc1 21.Rc1 Qd2 22.Kf3 Qc1 23.Qa7-+) 18.Bb2 Rd2 19.Be5 Qh4 (19...Qd3 20.Bg3-/+) 20.Qf3=+ Rfd8 21.Bg3 Qd4 22.Rac1 h6 (22...Rd3 23.Qf5 Ra3-/+) 23.h3? (better 23.Bc7!? Rd3 24.Qe2 Bc7 25.Rc7=+) 23...Rd3-+ 24.Qe2?? (better 24.Qf4-+) 24...Rg3 25.Rfd1 Rd3 26.Rd3 Qd3 27.Qg4 (27.Qd3 Rd3 28.a4 Rd2-+) 27...Bf2! 28.Kh1 (28.Kf2 Qd2 Double attack) 28...Bb6 (better 28...Qa3 29.Rf1 Bd4-+) 29.Rc8 (29.a4 Qd4 30.Qd4 Rd4-+) 29...Rc8 (29...Qf1 30.Kh2 Bg1 31.Kh1 Bf2 32.Kh2 Qg1) 30.Qc8-+ Kh7 31.Qe8 (31.Qc1-+) 31...Qd1 32.Kh2 Bf2 (32...Bg1 33.Kg3 Qd3 34.Kg4 h5 35.Kg5 f6 36.Kh4 Bf2 37.g3 Bg3 38.Kh5 Qf3) 33.Qe4-+ g6 34.h4 Qg1 35.Kh3 h5 (better 35...Qh1!? 36.Kg4 f5 37.Kf3 fe4 38.Kf2 Qh4 39.Ke2-+) 36.Qe5 (36.Qf4 Qh1 37.Qh2 Qa1-+) 36...Qh1 (better 36...Qc1-+) 37.Qh2 Qd1 38.Qc7 (38.Qf4 Qd7 39.Kh2-+) 38…Qh1 (38...Qh1 39.Qh2 Qa1-+; 38...Qg4 39.Kh2 Qh4) 0-1. africanmorphy (2465) - agnivo (2500), Rated Blitz game, lichess.org, 2021. (=1.e4 c5 2.b4 d5)

3.Bb2 de4 4.bc5 e6 5.Nc3 Nf6 6.d4 (6.Bb5 Bd7=+) 6...ed3!-/+ 7.Bd3 (7.cd3 Bc5 Combination; 7.Qd3 Bd7 Combination; 7.Bd3 Bc5 Combination) 7...Bc5 8.Nf3 0-0 (8...Bf2 9.Kf2 Qb6 10.Kg3 Qb2 11.Nb5 Ne4 12.Be4 Qb5 13.Rb1-/+) 9.0-0 Nbd7 10.Re1? (10.Qe2 b6=+) 10...b6 (better 10...Bf2!? 11.Kf2 Qb6 12.Kf1 Qb2-+) 11.Ne4-/+ Be7 12.Neg5 (12.Nfg5 h6 13.Nf6 Nf6=+ (13...gf6 14.Qh5 Ne5 15.Qh6 Nf3 16.gf3 Qd3 17.cd3 Rd8 18.Qh7 Kf8 19.Qf7; worse 13...Bf6 14.Bh7 Kh8 15.Bf6 Qf6 16.Be4 Qg5 17.Ba8+=)) 12...h6 13.Nh3 Bb7 14.Qe2 Nc5 15.Rad1 Nd3 16.Rd3 Qc7 17.Ne5 Rad8 18.Rg3 Ne4 19.Qg4? (better 19.Rd3-+) 19...Bf6 (19...Ng3 20.Qg3 Qc2 21.Bc3-+) 20.Re4 (20.Rge3 Be5 21.Be5 Qe5-+) 20...Be4 21.Nd3 Bf5 (better 21...Bb2 22.Qe4 Qc2-+) 22.Qg7!+- Bg7 23.Rg7 Kh8 24.Rf7 Kg8 25.Rc7 Bd3? (25...Rf7 26.Rf7 Kf7+-) 26.Rg7 (26.cd3?! Rf7 27.Rc3 Rfd7+-) 26...Kh8 27.cd3 (better 27.Ra7!? Kg8 28.Rg7 Kh8 29.cd3 Rd5+-) 27...e5 28.Be5 Rfe8 29.Re7 Kg8 30.Re8 Re8 31.f4 Rc8 32.Kf2 Rc1 (32...Rc2 33.Kf3 Ra2 34.f5+-) 33.Kf3 Rc2 (33...Rc5 34.Nf2+-) 34.Nf2 (34.a3!? b5+-) 34...Ra2 35.g4 (35.Ng4 h5 36.Nf6 Kf7 37.Nh5 Ra3+-) 35...Rc2 36.h4 White prepares g5 36...b5 37.g5 a6 (37...hg5 38.fg5 Kf7+-) 38.g6 (worse 38.gh6 Kh7 39.Bg7 Kg8+-) 38...a5 (38...h5+-) 39.f5 b4 (39...h5 40.f6 Rc6+-) 40.f6 Rc8 41.f7 (41.Ng4 Rc6 42.Nh6 Kf8 43.g7 Ke8 44.g8Q Kd7 45.Qd5 Ke8 46.Qc6 Kf8 47.Bd6) 41...Kf8+- 42.Kf4 b3 43.Kf5 a4 44.Kf6 (44.Bd6 Kg7 45.Ne4 h5 46.Nc5 Rg8 47.Ne6 Kh8 48.Be5 Rg7 49.f8Q) 44...Rc6= 45.Kf5 Rc8 46.Ne4 (46.Bd6 Kg7 47.Ne4 h5 48.Nc5 Rg8 49.Ne6 Kh8 50.Be5 Rg7 51.f8Q) 46...Rc6 47.Bd6 Rd6 48.Nd6 Kg7 (48...Kg7 49.Ne8 Kf8 50.Ke6 a3 51.g7; 48...Ke7 49.g7 Kd8 50.f8Q Kc7 51.Qc8 Kb6 52.Qb7 Kc5 53.Ke5 a3 54.d4) 0-1. Saqo20 (2565) - agnivo (2540), Rated Bullet game, lichess.org, 2021. (=1.e4 c5 2.b4 d5)

3.Nc3 de4 4.Bb5 Bd7=+ 5.Qe2 cb4 6.Ne4 e6 7.Bb2 Nf6 8.Nf6 gf6 9.Nf3 Nc6 10.0-0 Be7 11.d4 a6 12.Bd3 Na7 13.d5 Qc7 14.de6+= Be6 15.Nd4 Qd7 16.Rfe1 0-0-0 17.Ne6 fe6 18.Qe6 Qe6 19.Re6+- Nc6 20.Ba6! ba6 21.Rc6 Kb7 22.Re6 (22.Re6 Bc5 23.Bf6+/-) 1–0. yourmove (2795) – pokerpig (2280), net–chess.com, 2008.

3.bc5 Nc6 4.ed5 Nb4? (better 4...Qd5!? 5.Nf3 Qc5+=) 5.Bc4 (5.c4 Qa5+/-) 5...Nd5+/- 6.Nf3 e6 7.Bb5 Bd7 8.Bd7 Qd7 9.Ba3 (9.c4 Nb4 10.d4 Rd8+/-) 9...g6 (9...Qa4 10.0-0+=) 10.0-0 Bg7 11.c3 Nge7 12.Nd4 (12.Re1 0-0+=) 12...0-0 13.Qg4 (13.Nb3 Nc6+=) 13...Rac8 (13...Qa4 14.Qe4=) 14.Qf3 (14.Nf3 Rfd8=) 14...Qa4 15.Bb2 (15.Nb3!?+=) 15...Rc5=+ 16.Ba3 Nc3?? (better 16...Bd4 17.cd4 Rc7=+) 17.Bc5+- (17.dc3?! Rc7+-) 17...Ncd5 18.a3 (18.Nc3 Qd7+-) 18...b6?? (better 18...Bd4 19.Nc3 Bc3 20.dc3 Rc8 21.Be7 Rc3+=) 19.Nc3+- Qd7 20.Nce2 (better 20.Nd5 bc5 21.Ne7 Qe7 22.Nc6+-) 20...bc5-/+ 21.Rab1? (better 21.Nb3 Ba1 22.Ra1-/+) 21...cd4-+ 22.Nc1 Nf5 23.Nd3 Nd6 24.Rfe1 (24.Rfc1-+) 24...Ne4 (better 24...Nc4 25.Red1 Qa4-+) 25.Qe4+= e5? (better 25...Qd6+=) 26.Ne5+- Qe6 27.Qd4 Re8 28.Qa7 Be5 29.Kh1?? (29.d4 Bh2 30.Kh1 Qc6 31.Re8 Qe8 32.Kh2 Kg7+-) 29...Qf5?? (29...Nf4 30.Qb7 Nd3-/+) 30.d4+- Kg7 31.Rbd1?? (31.de5 Nf4+-) 31...Qg4?? Attacks the isolani on d4 (better 31...Bb8 32.Qa5 Qf4-/+) 32.de5 (32.f3!? Qg5 33.de5 Nf4+-) 32...Re5 (32...Nf4 33.Rg1 Ne2 34.h3+-) 33.Rc1 (better 33.h3 Re1 34.Re1+-) 33...Nf4 34.Qb7 Rd5? (better 34...Re1 35.Re1 Nd3+-) 35.g3?? (better 35.Qb2 Kh6 36.f3+-) 35...Qf3 36.Kg1 Qg2 0-1. Tony _ R - JPKN3, ChessWorld.net, 2020. (=1.e4 c5 2.b4 d5)

3.e5 cb4 4.d4 (--> 1.b4 c5 2.d4 cb4 3.e4 d5 4.e5).

3.e5 Bf5 4.bc5 Nc6 5.Nf3 d4 (5...Qa5!?=) 6.Bb5+= e6 7.Ba3 Qd5 8.0-0 Bc5?? (better 8...Bg4 9.c4 Qe4+-) 9.c4+- dc3 10.Nc3 Bf2 11.Rf2 (11.Rf2 Qd7 12.Bd6+-) 1–0. Pindear – Ceppiq, internet, 2019.

3.bc5 d4

4.d3 Nc6 5.Nf3 e5 6.Be2 Bc5 7.0-0 Bg4 8.Nbd2 Bf3 9.h3?? (better 9.Bf3 Nf6 10.Rb1=) 9...Be2-+ 10.Qe2 Nf6 11.Nb3 Bb6 12.Bg5 h6 13.a4 (13.Bh4-+) 13...hg5 14.a5 (14.Qf3 Rc8-+) 14...Na5 15.Na5 Ba5 16.c4 dc3 17.d4 ed4 (17...Bc7 18.de5 Be5 19.Qb5 Nd7 20.Rfd1-+) 18.e5 (18.Qb5 Nd7 19.Ra5 g4 20.Qb7 gh3-+) 18...Nd5 (18...d3 19.Qa2 Nh5 20.e6-+) 19.e6 (19.Qb5 Qd7 20.Qa5 g4 21.hg4 d3-+) 19...0-0 20.e7 Qe7 21.Qe7 (21.Qb5 Bc7 22.Qd5 Qe5 23.Qe5 Be5-+) 21...Ne7 22.Ra5 Nc6 (22...d3 23.Re5 Rfe8 24.Rg5-+) 23.Rg5 (23.Rc5 Rfd8 24.Ra1 Rac8-+) 23...d3 24.Rc5 c2 25.Rc3 Rfd8 26.Rc2 dc2 27.Rc1 Rd1 28.Kh2 Rc1 (28...Rc1 29.h4 Re1 30.Kh3 c1Q 31.Kg4 Re4 32.Kh3 Qh1 33.Kg3 Qh4 34.Kf3 Nd4) 0-1. vervitu (2405) - universe64 (2460), lichess.org, 2020. (=1.e4 c5 2.b4 d5)

4.Nf3 Nc6 5.c3 e5 6.cd4 (6.Bb5 Bd7 7.Ba3 Qf6+/-) 6...ed4+= 7.Bc4 (7.Qc2!?+=) 7...Bc5= 8.0-0 Qe7 9.d3 Be6 10.Nbd2 Nf6 11.Be6 Qe6 (11...fe6 12.Nb3=) 12.Nb3+= Bb6 13.Ba3 0-0-0 (13...Rb8!?+=) 14.Rc1 Kb8 15.Nc5 Qa2?? (15...Bc5 16.Bc5 b6 17.Ba3+/-) 16.Qa4 (better 16.Ra1 Qa3 17.Ra3 Bc5 18.Ra4+-) 16...Bc5+/- 17.Rc5 Rc8?? (17...Qe6 18.Rb1 Ka8 19.Rc4+-) 18.Rfc1 (18.Rc6!? Rc6 19.Bd6 Rd6 20.Qa2 Rd7+-) 18...Ka8? (better 18...Qe6+-) 19.Nd4 Nd7 20.Nc6 (20.R5c2 Nb6 21.Qc6 Qc2 (21...bc6?? 22.Ra2 Rc7 23.Bd6+-) 22.Qc2 Rc2 23.Rc2 Rd8+-) 20...bc6 21.Rc6 Nb6 22.Rc8 (better 22.Qa6!? Rc6 23.Rc6 Rd8+-) 22...Rc8 23.Rc8 Nc8 24.Qc6 Kb8 25.Bd6 Nd6 26.Qd6 Ka8 (better 26...Kb7 27.Qb4 Kc6+-) 27.h4?? (better 27.f3+-) 27...Qb1-+ 28.Kh2 Qb8 29.e5 a5 (better 29...Qd6 30.ed6 Kb7-+) 30.Qd5+- Qb7 31.Qa5 Kb8 32.Qd8 Ka7 33.Qd4 Ka8 34.Qd8 (34.Qd6 g6+-) 34...Ka7 35.Qb6 (better 35.h5+-) 35…Kb6 0-1. WorcesterYork (2425) - universe64 (2425), lichess.org, 2021. (=1.e4 c5 2.b4 d5)

3.bc5 de4

4.Bb2 e6 5.d4 ed3 6.Bd3 (6.cd3 Nc6=+) 6...Nf6-/+ 7.Nf3 Bc5 8.0-0 0-0 9.Nbd2 Nc6 10.Nb3 Be7 11.Qe2 Nb4 12.Bc4 Nc6 (12...Bd7 13.Rfd1=+) 13.Nbd4 (13.Bd3!?=) 13...Nd4 (13...Bd7 14.Rad1 Qb6 15.Nc6 Bc6 16.Bd4 Bf3 17.Qf3-/+) 14.Bd4=+ b6 15.Rad1 (15.Rfd1 Qc7-/+) 15...Qc7-/+ 16.Ne5 (16.Be5 Qc5-/+) 16...Bb7 17.Bd3 Rfd8 18.Bb2 Bd6 19.f4 (19.Rfe1 Rac8-/+) 19...Nd5-+ 20.Kh1 (20.Bd4 f6 21.Ng4 Nf4 22.Rf4 Bf4 23.Qe6 Qf7 24.Bh7 Kf8-+) 20...Bc5 (20...f6 21.c4 Nf4 22.Rf4 Be5 23.Rf2-+) 21.Rf3-/+ f6 (21...Nb4 22.Rg3 Bf8-/+ (22...Na2 23.Rg7 Kg7 24.Nd7 Nc3 25.Bc3 e5 26.Be5 f6 27.Qg4 Kf7 28.Qh5 Ke7 29.Qh7 Ke8 30.Bg6; 22...Nd3?! 23.cd3 Bd4 24.Rc1=+)) 22.Bh7? (better 22.Qe4 g6 23.Ng6 hg6 24.Qe6 Qf7 25.f5 Qe6 26.fe6-+) 22...Kh7-+ 23.Rh3 (23.Nd3 Rd6-+) 23...Kg8 24.Ng6 Ne3! 25.Rd8 (25.Re3 Rd1 Decoy) 25...Rd8 (worse 25...Qd8 26.Rh8 Kf7 27.Ne5 fe5 28.Qh5 Ke7 29.Qg5 Kd7 30.Rd8 Rd8 31.Qg7 Kc8 32.h4 Bg2 33.Kh2-+) 26.Re3 (26.Rh8 Kf7 27.Rd8 Qd8 28.Nh4-+) 26...Be3 27.Qh5 (27.Ba3 Bg2! 28.Kg2-+) 27...Qc2 28.Ne7 Kf8 29.Qh8 (29.Qe8 Ke8 30.Bf6 Bg2) 29…Kf7 (29...Kf7 30.Qh5 Ke7 31.Qf7 Kf7 32.Bf6 Bg2) 0–1. De Graaf,D (2175) – Van Foreest,Machteld (1825), 21st Hoogeveen Open (3), 2017. (=1.e4 c5 2.b4 d5 3.bc5 de4)

4.Bb2 Nf6 5.Nc3 Nc6 (5...e5 6.Bb5 Nc6 7.Qe2-/+) 6.Bb5 (6.Nge2 Bf5=+) 6...Bd7 (6...e5 7.Qe2 Bf5 8.d3-/+) 7.Qe2? (better 7.Nge2!?=+) 7...Nd4-/+ 8.Bd7 Qd7 9.Qc4?? (better 9.Qd1-/+) 9...Nc2-+ 10.Kd1 Na1 11.Nge2 (11.Ne4 Qg4 12.f3 Qg2 13.Qb5 Nd7 14.Ng3-+) 11...Rd8 (11...0-0-0!? 12.Bc1-+) 12.Ne4 (12.Qb5 Qb5 13.Nb5-+) 12…Ne4 (12...Ne4 13.Nd4 Nf2 14.Ke1 Nh1 15.Ba1 Qd5 16.Qb5 Rd7-+) 0-1. skulas (2400) - Lance5500 (2695), lichess.org, 2016.

4.Nc3 Nf6 5.Bb5 Nc6 6.Rb1 Bd7 (6...e5 7.Qe2=+) 7.Nge2 e5 8.Ng3 Bc5 9.0-0 0-0 10.Nge4 Ne4 11.Ne4 Be7 12.d3 a6 13.Bc4 b5 14.Bd5 Rc8 15.Bb2 Nd4 16.c3 Bc6 17.Bf7 Rf7 18.cd4 ed4 19.Qg4 Bb7 20.Rfc1 b4 21.Qe6 Rc1 22.Rc1 a5 23.f3 (23.Qe5 Qd5 24.Bd4 Qa2=) 23...a4=+ 24.Qe5 Exerts pressure on the isolated pawn 24...Bd5 25.Ra1 Bf8 (25...Be4 26.Qe4 Bf6 27.Qe6=) 26.a3 (26.Qd4 a3 27.Bc1 Qd7+=) 26...Be4 27.fe4 b3 28.Rc1 (worse 28.Bd4 Be7 29.Qd5 Qd5 30.ed5 Rf4-+; worse 28.Qd4 Qd4 29.Bd4 Rd7-+) 28...Qd6 29.Qd6 Bd6 30.Rc8 (30.Rc4 Rc7 31.Ra4 Rc2 32.Bd4 b2 33.Bb2 Rb2=) 30...Rf8 31.Rc4 Ra8 32.Kf2 (32.Rd4? Bc5 33.Kf1 Bd4 34.Bd4 Rb8-+) 32...Ra5 33.Rc6 (33.Rd4 Bc5 34.Ke3 Bd4 35.Kd4 Rg5-+) 33...Bh2 34.Bd4 Be5 35.Be5 Re5 36.Rb6 Rc5 37.Ke3 (37.Rb4 Rc2 38.Ke3 b2=) 37...Rc2 38.e5? (38.Rb4 b2 39.g4 Kf7=) 38...Kf7 (38...Rg2 39.Rb4 b2 40.Kf3-/+) 39.d4 (39.g4 Ra2=+) 39...Ra2 (39...Rg2 40.d5-/+) 40.d5 Ra3 41.Rb7 Kg6 42.Kf4 Ra2 43.Rb6 Kf7 44.Rb7 ½-½. Bazza3 (2585) - DarkKnightsPawn (2300), ChessWorld.net, 2019. (=1.e4 c5 2.b4 d5)

4.Nc3 Nf6 5.Bb5 Bd7 6.Qe2 Nc6 (6...e6 7.Rb1 Bc5 8.Ne4 Ne4 9.Qe4=) 7.Ne4 Ne4 8.Qe4 e5 (8...Qa5 9.Qa4 Qa4 10.Ba4=) 9.Bc6 Bc6 10.Qe5 Be7 (10...Qe7 11.Qe7 Be7 12.f3+=) 11.Bb2 (11.Qg7? Bf6 12.Qg3 Qe7 13.Kf1 Ba1-+) 11...Qa5 (11...f6 12.Qg3 Qd7 13.Ba3+= (13.Qg7 0-0-0 14.0-0-0 Rhg8-+)) 12.Ne2 (12.Qg7!? 0-0-0 13.Qg4 Bd7+-) 12...0-0-0 (12...f6 13.Qg3 0-0 14.Nd4 Bc5 15.Ne6+=) 13.Qf5 (13.Qe7?? Qd2 14.Kf1 Qd1 15.Rd1 Rd1; 13.Qg7?? Qd2 14.Kf1 Qd1 15.Rd1 Rd1) 13...Kb8 (13...Rd7 14.Bd4+- (14.Bg7? Qd2 15.Kf1 Rg8-+)) 14.Nd4 Bg2 15.Rg1 (15.Nb3 Qb5 16.Rg1+-) 15...Bf6 (15...Bd5 16.Nb3 Qb5 17.Bg7 Rhe8 18.Be5 Ka8+=) 16.Rg2+- Rd4 (16...Rhe8 17.Kd1 Bd4 18.Qf4 Qc7 19.Qc7 Kc7 20.Bd4 Rd4 21.Rg7+-) 17.Bd4 Re8 18.Kf1 Bd4 (18...Qb5 19.Kg1 Bd4 20.c3+-) 19.Qf4 Be5 20.Qf7 Threatening mate: Qxe8 20...Qa6 21.Kg1 Qb5 (21...Rd8 22.Rb1 Qc6 23.Rg4+-) 22.Re1 (22.c3 Bf6+-) 22...Bh2 23.Kh2 Re1 24.Rg7 a6 (24...Re8+-) 25.Rg8 Ka7 26.Qf8 Re8 27.Qe8 Qc5 28.Qe3 (28.Qe3 Qe3 29.fe3+-) 1–0. Bazza3 (2500) – JPKN3 (2020), ChessWorld.net, 2018. (=1.e4 c5 2.b4 d5 3.bc5 de4)

4.Nc3 Nf6 5.d3 ed3 6.Bd3 e5 7.Be3 (7.Qe2 Nc6 8.Nf3 Bc5 9.Ne5 0-0 10.Nc6 bc6-/+) 7...Qa5-/+ 8.Nge2 Bc5 9.Bc5 (9.0-0 0-0-/+) 9...Qc5 10.0-0 0-0 11.Ne4 Ne4 12.Be4 Nd7 13.Ng3 Nf6 14.Bf5 (14.Rb1!?-/+) 14...Bf5-+ 15.Nf5 Rad8 16.Qf3 e4 17.Qf4 g6 (17...Qc2?! 18.Qg5 g6 19.Qf6 gf5 20.Qg5 Kh8 21.Qf6 Kg8 22.Qg5 Kh8 23.Qf6 Kg8=) 18.Nh6 (18.Ne3 Kg7-+) 18...Kg7 19.Ng4 Ng4 20.Qg4 f5 21.Qe2 Qd4 (21...Rc8 22.Rac1-+) 22.Rfd1 Qe5 23.Qc4 (23.Rab1 b6-+) 23...Rd1 (23...Rf7 24.Qe2-+) 24.Rd1 Rf7 25.Qc8 (25.h3 Rc7 26.Qb3 f4-+) 25...f4-+ Black prepares e3 26.Qc4 e3 27.Re1 ef2 (27...Re7!? 28.fe3 b5 29.Qd3 fe3 30.c3-+) 28.Kf2-/+ Qf5 29.Qd4 Qf6 (29...Kh6 30.c3-/+) 30.Re2?? (better 30.c3-/+) 30…Qd4 (30...Qd4 31.Kf3 Qd5 32.Re4 Re7 33.Kf2 Re4 34.h3 Qd2 35.Kg1 f3 36.gf3 Re1) 0-1. skulas (2435) - Lance5500 (2665), lichess.org, 2016. (=1.e4 c5 2.b4 d5)

4.Nc3 Nf6 5.d4 ed3 6.Bd3 e6 7.Nf3 Bc5 8.0-0 0-0 9.Bg5 Be7 10.Qe2 Nbd7 11.Rfd1 Qa5 12.Ne4 h6 13.Bh4 Re8 14.Rab1 Nd5 15.Rb5 (15.Be7 Re7 16.Qd2 Qd2 (16...Qa2? 17.Ra1 Qb2 18.Rdb1 Qb1 19.Rb1+-) 17.Rd2 b6+=) 15...Qd8 (15...Qa2 16.Be7 Re7 17.Qe1-/+) 16.Nd6? (better is 16.Be7!? Re7 17.c4+=) 16...Nc3-/+ 17.Qe1 Nd1 (17...Bh4?! 18.Qc3 Bf6 19.Qe1+=; 17...Bd6? 18.Bd8 Nd1 19.Bh4+- (19.Qd1?! Rd8 20.Bh7 Kh7 21.Qd6 Re8+=); 17...Nb5?! 18.Bb5 Bh4 19.Ne8 Qe8 20.Nh4+=) 18.Qd1 (18.Ne8!? Bh4 19.Nh4 Nf2 20.Qf2 Qe8 21.Qe3-+) 18...Bh4-+ (18...Bd6 19.Bd8 Rd8 20.Bh7 Kh7 21.Qd6+=) 19.Nh4 Rf8 (19...Qh4?! 20.Ne8 a6 21.Qa1-/+) 20.Rh5 (20.Nf3 Qc7-+) 20...Nf6 21.Re5 Nd5 (21...Qd6?! 22.Bh7 Kh7 23.Qd6=) 22.Rd5 (22.Nc8 Qh4 23.Nd6-+) 22...ed5 (22...Qh4?! 23.Rd4 Qg5 24.Be4-+) 23.Ndf5 (23.Nhf5 Qf6-+) 23...Qg5 (23...g6!? 24.Nh6 Kg7 25.N4f5 Bf5 26.Nf5 gf5 27.Bf5-+) 24.f4 (24.Qa1 Bf5 25.Nf5 Kh8-+) 24...Qf6 (24...Qf4 25.Ne7 Kh8 26.Nhg6 fg6 27.Ng6 Kg8 28.Nf4 Rf4 29.Qe1+=) 25.Qe1 Bf5 26.Nf5 Rfe8 27.Qd2 Rac8 28.g4 Qc3 29.Qf2 Qe1 30.Qe1 Re1 31.Kf2 Re6 32.a4 Kf8 33.Nd4 Rb6 34.Nb5 a6 35.Nd4 Rb4 (35...Rb4 36.Ne2 Ra4-+) 0–1. Haist,Winfried (2145) – Petkidis,Anthony (2075), Boeblingen op, 2008. (=1.e4 c5 2.b4 d5)

4.Nc3 Nf6 5.Qe2 e6 6.Ba3 Nc6 (6...Qd4 7.Rb1=) 7.Ne4 Qa5 8.Nf6 gf6 9.Bb2 e5 10.Qb5 (10.Qf3 Be7=) 10...Qb5 11.Bb5 Bc5 12.Ne2 Be6 (12...Ke7 13.f4 Rg8 14.Ng3=) 13.0-0-0 (13.d4 Bb4 14.Kf1 0-0-0=) 13...0-0-0 14.Kb1 (better 14.Bc6!? bc6 15.d4=) 14...Rhg8-/+ 15.Ng3 (15.g3 a6 16.Bc6 bc6=+) 15...Nd4 (15...Bf2!? 16.Ne4 Bd4 17.Bc6 bc6-/+) 16.Bd3=+ h6 17.Rhf1 Nc6 18.f4 Nb4 19.Bf5 (19.fe5 Ba2 20.Ka1 A) worse 20...Nd3 21.cd3 (21.Ka2 Nb2 22.Kb2 Bd4 23.Kc1 Be5-/+) 21...Be6 22.Rc1+- (22.Rf6?! Rd3 23.Rh6 Bb4=); B) 20...fe5 21.Be5 Be6=) 19...Bf5 20.Nf5 Rg2 21.fe5 fe5 (worse 21...Rgd2 22.Nd6 Bd6 23.Rd2 fe5 24.Rf7+-) 22.a3 (22.Be5 f6 23.Bf4 h5=+) 22...Nc6-/+ 23.h4 (23.Nh6!? Rh2 24.Nf7 Rdd2 25.Rd2 Rd2 26.Re1=+) 23...h5 24.Nh6 Rdd2 25.Rd2 Rd2 26.Rf7 e4 27.Bc1? (27.Nf5-+) 27...Rd1 28.Kb2 e3 29.Be3 Be3 30.Nf5 Bd4 31.Kb3 (31.c3 Rd2 32.Kb3 Na5 33.Kb4 Rb2 34.Ka4 Be5 35.Nd6 Bd6 36.Ka5 Bc7 37.Rc7 Kc7-+) 31...Bc5 (31...Rb1 32.Ka2 Rb2 33.Ka1-+) 32.Ng7 (32.Rh7 Ra1-+) 32...Rh1 (32...Ra1 33.c3-+) 33.Rf4 (33.Nf5 b5-+) 33...Rh3 34.c3 Bd6 (34...Nd4 35.Kc4 Ne2 36.Re4 Rc3 37.Kd5-+) 35.Re4 Be5 36.Nh5 Rc3 (worse 36...Bc3 37.Nf4 Rf3 38.Kc4-+) 37.Ka2 b5 (37...Rc2 38.Kb1 Rb2 39.Kc1-+) 38.Rg4 (38.Nf4 Rc2 39.Kb1 Rb2 40.Kc1 Rh2-+) 38...Rc2 (38...Na5!? 39.Rg8 Kd7 40.Rg5-+) 39.Kb1 Rb2 40.Kc1 Rh2 41.Re4 (41.Kd1 Ra2-+) 41...Kb7 (41...Bc3 42.Ng3 Nd4 43.h5-+) 42.Rg4 (42.Kd1 Bd6-+) 42...Na5 43.Rg5 (43.Rb4 a6-+) 43...Nc4 0–1. Schwab,Felix (1985) – Borsos,Bogdan (2250), 10th Engadin Pfingst Open, 2016. (=1.e4 c5 2.b4 d5)

4.d4 e5 5.c3= Nc6 6.Bb5 (6.Be3 Nf6=) 6...Nf6 (6...ed4 7.Bc6 bc6 8.cd4=) 7.Ne2= Bd7 8.0-0 ed4 9.cd4 Nb4 10.Bc4 Nbd5 (10...b5 11.Bb3+=) 11.Nbc3 (11.Ng3 Bc6+/-) 11...Bc6 12.Bg5 Be7 13.Re1 (13.Bf6 Nc3 14.Be7 Nd1 15.Bd8 Nb2+/-) 13...0-0 14.Nd5 (14.Bf6 Nc3 15.Be7 Ne2 16.Qe2 Qe7+/-) 14...Nd5 15.Be7 Qe7 16.Ng3 f5 (16...Nf6 17.Nf5 Qd7 18.Nd6+/-) 17.f3+/- e3 18.Qb3 Rad8 (18...Qd7 19.Re3 f4 20.Re5 fg3 21.Bd5 (21.Rd5?! Bd5 22.Bd5 Kh8 23.Qb7 gh2 24.Kh1 Qa4=) 21...Kh8 22.Qc4+/- (22.hg3 Rad8-+)) 19.Re3 Qf6? (better 19...Qh4 20.Rd1 f4+/-) 20.Re5+- Kh8 (20...Qf7+-) 21.Bd5 1-0. blitzbullet (2455) - littleplotkin (2400), Rated Blitz game, lichess.org, 2018. (=1.e4 c5 2.b4 d5)

3.ed5 cb4

4.a3 Nf6 5.Bc4 Nd5=+ 6.Qf3 e6 7.Bb2 Nc6 8.Ne2 Qg5 9.h4 Qf5?? 10.Qf5+- ef5 11.Bd5 Be6 12.Bc6 bc6 13.ab4 Bb4 14.Bg7 Rg8 15.Be5 Rg2 16.Bg3 Bd5 17.Nf4 Rg3 18.Nd5 (18.Nd5 cd5 19.fg3+-) 1–0. Carrasco Sagredo,Manuel (2085) – Coves Sepulcre,Laureano (1955), Open Bali A Benidorm ESP, 2003.

4.Bb2 Qd5 5.Nf3+=.

4.Bb2 Nf6 5.c4 bc3+= 6.Nc3 Nd5 7.Nf3 e6 8.Bc4 Nb6 9.Bb3 Be7 10.0-0 0-0 11.Rc1 Bd7 12.Qe2 Nc6 13.Rfe1 Na5 14.Bc2 Nac4 15.Ba1 Bc6 16.Ne4 Nd6 17.Nd6 Qd6 (worse is 17...Bd6 18.Qd3 g6 19.Qd4=) 18.Ne5 Bg5 19.Qh5 Bh6 (19...h6 20.Nc6 bc6 21.Bc3-/+) 20.Rcd1 (20.Bc3 f5=) 20...f5 21.g4 (21.Nc6 Qc6 22.Bb3 Nd5+=) 21...Be8 (worse is 21...Bd2 22.Re2 Nc4 23.Bb3+/- (23.Nc4?! Qd5 24.f3 Qf3 25.Red2 Qh1 26.Kf2 Qf3 27.Ke1 Qh1 28.Ke2 Qf3 29.Ke1 Qh1 30.Ke2 Qf3 31.Ke1=)) 22.Qh3 Rc8 (22...Bd2 23.Re2 Rd8 24.Bc3+/-) 23.Bb3 Nd5 (23...Bd2? 24.Nf3 Nd5 25.Rd2+-) 24.Qg2 Bg5 25.Nf3 Bf6 26.gf5 Ba1 27.Re6 Qd8 28.Ra1 Kh8 (28...Rf5? 29.Nd4 Rh5 30.Re8 Qe8 31.Bd5 Kh8 32.Bb7+-) 29.Re5 Bc6 30.Qg3 Qd7 31.Nh4 Rfe8 32.Rae1 Re5 33.Re5 Re8 34.d4 Qd8 35.Ng6 Kg8 36.Nf4 Re5 37.de5 Kh8 38.Qg7!! Kg7 39.Ne6 Kh6 40.Nd8 Nc7 41.Nc6 bc6 42.f4 Kg7 43.Kf2 Nb5 44.Ke3 c5 45.Ke4 1–0. Bender,Klaus – Habermann,Arno, Germany ch–23 prel–3, 1991. (=1.e4 c5 2.b4 d5 3.ed5 cb4)

4.Bb2 Nf6 5.Nf3 Nd5 6.c4 bc3 7.Nc3 Nc6 8.Bc4 e6 (8...Nb6 9.Be2=+) 9.0-0= Be7 10.Bb3 (10.Nd5 ed5 11.Bd3 0-0=) 10...0-0=+ 11.Re1 (11.Nd5 ed5 12.Qe2=+) 11...b6 (11...Nf4 12.d4=+) 12.Qe2? (12.Nd5 ed5 13.Rc1 Bb7=) 12...Bb7 (12...Ndb4 13.d4 Ba6 14.Nb5-/+) 13.Qe4? (13.Nd5!? ed5 14.Rac1=) 13...Ncb4 (13...Ndb4!? 14.Re3 Na5-+) 14.a3 Nc3 15.Qb7 Nd3 16.Bc3 (better 16.dc3 Nc5 17.Qc6 Nb3 18.Rad1-/+) 16...Ne1?? (better 16...Nc5 17.Qc6 Nb3-/+) 17.Re1+- (17.Ne1?! Bf6 18.d4 Rc8+=) 17...Ba3 (17...Bf6 18.Bb4 Qb8 19.Qe4+-) 18.Ne5 (18.Be6 Bd6 19.Ba2 Rc8+-) 18...Bc5? (better 18...Qe7 19.Qe4 Rac8+-) 19.Kh1 (19.Nf7 Qe7 (19...Rf7?? 20.Be6 Bf2 21.Kh1+-) 20.Nh6 Kh8 21.Qe7 Be7 22.Be6 Bh4 23.Nf7 Kg8 24.Nd6 Kh8+-) 19...Bf2?? (better 19...Rc8+/-) 20.Rf1 (better 20.Nf7 Rf7 21.Be6+-) 20...Qh4 21.Nf7 (better 21.Nf3 Rab8 22.Qc6+- (22.Nh4?! Rb7 23.Rf2 Rc8+-)) 21...Rae8?? (21...Bg3 22.h3 Rae8 23.Bc4+- (23.Qa7?! Bb8 24.Qd7 Qg3 25.Nh6 Kh8 26.Bg7 Qg7 27.Nf7 Kg8=)) 22.Ne5 (22.Rf2 Qg4 23.Bc2+-) 22...Kh8?? (better 22...Qe7 23.Qe4 Qh4+-) 23.Nf3 (23.Ng6! hg6 24.Qg7) 23...Qe7 (23...Bd4 24.Bc4 (24.Nh4?? Rf1; 24.Bd4?! Qd4 25.Re1 Qb4 26.Be6 a5=) 24...Rf3 25.Qf3+-) 24.Qe7 Re7 25.Rf2 Ref7 (25...a5 26.Kg1+-) 26.Be6 Rf4 (26...Rc7 27.Rf1+-) 27.Bb3 (better 27.Re2 Re8+-) 27...b5 (27...a5 28.Re2 a4 29.Bd5+-) 28.Re2 b4 (28...a5 29.Re7 R4f6 30.Ba5+-) 29.Bb2 a5 (29...a6 30.Re7 R4f6 31.h4+-) 30.h3 a4 (30...R4f6 31.Re7 h6 32.Bf6 Rf6 33.Ra7+-) 31.Ba4 R4f7 (31...h5 32.Re6 R4f6 33.Bf6 gf6 34.Rb6+-) 32.Bb3 Rc7 (32...Ra7 33.Ng5 Rfa8 34.Bd4+-) 33.Re4 (33.Ng5 h6 34.Re6 Rc3 35.dc3 hg5 36.cb4 Kh7+-) 33...h6 34.Rg4 (34.Rb4 Kh7+-) 34...Kh7 (34...Rb7 35.Bd5 Rd7 36.Bc6+-) 35.Kh2 (better 35.Rb4 Re7+-) 35...h5 (35...Rb7 36.Bd5 Rfb8 37.Be5+-) 36.Rb4 Kh6 (36...Ra8 37.Rb6 Ra5 38.Be5 Re5 39.Ne5+-) 37.Rc4 (better 37.Be5 Rc6+-) 37...Rc4 (37...Rb7 38.Rc3+-) 38.Bc4 g5 (38...g6 39.d4 Rb8 40.Bc3+-) 39.d3 g4 40.Ne5 (better 40.hg4 hg4 41.Ne5 Kg5+-) 40...g3 (40...gh3 41.Kh3 Kg5 42.Nf3 Kf5 43.Bd4+-) 41.Kg3 Rg8 (41...Kg5 42.h4 Kh6 43.Bf7+-) 42.Kh2 (better 42.Bg8 Kg7 43.Bf7+-) 42...Re8 (42...Rb8 43.Bc3 Kg5 44.d4+-) 43.Bc1 Kg7 44.Bf4 (44.d4 Kf6+-) 44...Kf6 45.g3 (45.d4 Kf5 46.Kg3 Rd8+-) 45...Kf5 (45...Re5 46.Be5 Ke5 47.Bf7+-) 46.h4 Kf6 47.Bd5 Kf5 (47...Re7 48.d4 Kf5 49.Bg5+-) 48.Bf3 Kf6 49.Bh5 Ra8 (49...Re5 50.Be5 Ke5 51.g4+-) 50.Bg4 Ra2 51.Kh3 Ra3 52.Nf3 (better 52.d4+-) 52...Ra1 53.Bg5 (53.Be5 Ke7 54.Ba1 Kf8 55.h5 Kf7 56.Ng5 Ke7 57.Be5 Kf8 58.h6 Ke8 59.Bf6 Kf8 60.h7 Ke8 61.h8Q) 53...Kg7 54.Ne5 Rh1 55.Kg2 Rb1 56.Kf3 (better 56.h5 Rb5 57.h6 Kf8+-) 56...Rf1 57.Ke4 Rb1 58.Kf5 (58.h5 Re1 59.Kf5 Rf1 60.Ke6 Ra1 61.h6 Kg8 62.Kf6 Ra6 63.Be6 Re6 64.Ke6 Kh8 65.Kf7 Kh7 66.Bf4 Kh8 67.Ng6 Kh7 68.Nf8 Kh8 69.Be5) 58...Rb4 59.Bf4 (59.h5 Rb6 60.h6 Rh6 61.Bh6 Kh6 62.d4 Kg7 63.d5 Kf8 64.d6 Kg8 65.d7 Kh7 66.Kf6 Kh6 67.Nf7 Kh7 68.Bf5 Kg8 69.d8Q) 59...Rb5 60.h5 Kf8 61.h6 Kg8 62.Bh5 (62.Kf6 Rb7 63.Be6 Kh7 64.g4 Rb6 65.g5 Kh8 66.Nf7 Kg8 67.Nd6 Kh8 68.g6 Rb8 69.Nf7 Kg8 70.h7 Kf8 71.h8Q) 62...Kh8 63.g4 Rb6 (63...Kg8 64.g5 Rb2 65.g6 Rb7 66.h7 Rh7 67.gh7 Kh7 68.Kf6 Kh8 69.Kf7 Kh7 70.Ng4 Kh8 71.Be5 Kh7 72.Bg6) 64.g5 Rb5 (64...Kg8 65.g6 Rb1 66.h7 Kf8 67.h8Q Ke7 68.Qf6 Ke8 69.g7) 65.g6 Rb7 (65...Kg8 66.h7 Kg7 67.Bh6 Kh8 68.Bg5 Re5 69.Ke5 Kg7 70.d4 Kh8 71.Bf6) 66.g7 (66.Nf7 Rf7 67.gf7 Kh7 68.Bg6 Kh8 69.f8Q) 66...Rg7 (66...Kg8 67.Ng4 Rg7 68.hg7 Kg7 69.Bh6 Kh7 70.d4 Kh8 71.Kg6 Kg8 72.Nf6 Kh8 73.Bg7) 67.h7! Rh7 (67...Rh7 68.Bf3 Combination; 67...Kh7 68.Bg6 Combination) 68.Nf3 (better 68.Bf3 Kg8 69.d4+-) 68...Rh6 (68...Rh5 69.Bg5 Rh1+-) 69.Be5 (69.Bh6 Kh7 70.Kg5 Kg8 71.Kf6 Kh7 72.Bg7 Kg8 73.Bf7 Kh7 74.Ng5) 69...Kg8+- 70.Ke4 (better 70.Bg4 Ra6 71.d4+-) 70...Rh5 71.Ng5?? (71.d4 Kf7+-) 71...Rh6?? (71...Rg5 72.d4=) 72.Nf7?? (72.d4 Kf8+-) 72...Rh5?? (72...Kf7 73.d4=) 73.Kd5?? (73.Nd6 Kh7+-) 73...Rh4?? (73...Kf7 74.Ke4=) 74.Bd4?? (better 74.Ke6+-) 74...Kf7= 75.Kc4 Ke8 76.Kc5 Rh5 77.Be5?? (77.Kb4 Rh3=) 77...Rh3 (better 77...Re5 78.Kd6 Rh5-+) 78.d4 Rh5 79.Kc4 Rh7 80.Kd5 Rd7 81.Ke4 Rd8 0-1. Seppo (2505) - Lance5500 (2390), lichess.org, 2016. (=1.e4 c5 2.b4 d5)

4.Bb2 Nf6 5.Bf6!? ef6 6.Bb5 Bd7 7.Qe2 Qe7 8.Bd7 Nd7 9.a3=.

4.Bb5 Bd7 5.Be2 Nf6 6.a3 Nd5=+ 7.ab4 Nc6 8.d4 e5 9.c3 Nc3 10.Nc3+= Bb4 11.Bd2 ed4 12.Na2 Bd6 13.Nf3 0-0 14.0-0 Bf5 15.Bg5 Qd7 16.Nc1 (16.Nd4? Nd4 17.Bd3 Bd3 18.Qd3 Ne6-+) ½–½. Holemar,D (2285) – Weissenbeck,M (2275), 2nd Bundesliga Ost (10), 2006.

4.Bb5 Bd7 5.Be2 Nf6 6.a3 Nd5 7.Nf3 Bf5 8.Nh4 Bc8 9.d4 e5 10.de5 Nc6 11.Nf3 Be7 12.0-0 0-0 13.ab4 Ndb4 14.c3 Nd5 15.Qb3 Nb6 16.Rd1 Qc7 17.Bf4 Be6 18.c4 Nd7 19.Nc3 Nce5 20.Nd5 Bd5 21.Ne5 Ne5 22.Rd5 f6 23.Rb1 Rab8 24.Be3 b6 25.Rb5 Kh8 26.c5 Nd7 27.cb6 ab6 28.Rh5 Ne5 29.f4 Nd7 30.Qd3 f5 31.Rf5 Rf5 32.Qf5 Bc5 33.Bc5 Nc5 34.g3 h6 35.Rd1 Qe7 36.Bf3 1–0. pierre (2085) – gegitor (1895), Friendly Game, 2012.

4.Nf3 Qa5 5.Bc4 (5.c4 bc3 6.dc3 Nf6=) 5...Bf5 (5...Nf6 6.Bb2=+) 6.0-0 (6.d3 Nf6=) 6...Be4 (6...Nf6 7.Bb2=) 7.d4 (better 7.Bb2=) 7...b3 (better 7...Bd5 8.Bd5 Qd5=+) 8.Bb3+- Nf6 (8...Bd5 9.Bd2 Qd8 10.c4+-) 9.c4+- Bf3 (9...Nbd7+-) 10.Qf3 (10.gf3?! Nbd7+-) 10...e5? (10...Nbd7+-) 11.de5 Nd5 (11...Nfd7 12.e6 Ne5+-) 12.cd5 Bc5 (12...Nd7 13.d6 0-0-0 14.Bb2 Ne5 15.Qf5 Kb8 16.Qe5 Qe5 17.Be5+-) 13.e6 (13.d6 0-0 14.Qb7 Bd4+-) 13...fe6 14.de6 Be7 (14...Rf8 15.Qb7 Bd6 16.Ba3 Ba3 17.Na3+-) 15.Qf7 (15.Rd1 Rf8 16.Qb7 Bh4 17.Qc8 Ke7 18.Ba3 Qa3 19.Qc7 Kf6 20.Qf4 Ke7 21.Qh4 Rf6 22.Na3 Nc6 23.Rd7 Ke8 24.Qh5 Rg6 25.Qh7 Rf6 26.Qh8 Rf8 27.Qh5 g6 28.Qg6 Rf7 29.Qf7) 15...Kd8 16.Rd1 Kc7 (16...Kc8 17.Qe7 Rd8 18.Rd8 Qd8+-) 17.Qe7 Kb6 18.Be3 (18.Qd6 Nc6 19.Be3 Ka6 20.Bc4 Qb5 21.Bb5 Ka5 22.Qa3 Kb5 23.Nc3 Kc4 24.Qc5) 18...Ka6+- 19.Bc4 b5 20.Rd6 Nc6 21.Rc6 Qb6 22.Bb6 bc4 (22...Rhc8 23.Bc7 Kb7 24.Be5 Kc6 25.Qd7 Kb6 26.Qb5) 23.Ba7 Kb5 24.Qb7 Ka4 (24...Ka5 25.Ra6) 25.Ra6 1–0. bulent_2010 – interloper, ChessWorld.net, 2015. (=1.e4 c5 2.b4 d5 3.ed5 cb4)

4.Nf3 Nf6 5.a3 Nd5 6.ab4 Nb4 7.Nc3 e6 8.Ba3 Be7 9.Rb1 N8c6 10.Bb5 Nc2! 11.Qc2 Ba3 12.Qa4 Be7 13.Bc6 bc6 14.Qc6 Bd7 15.Qe4 0-0 16.0-0 Rc8 17.Ra1 Bc6 18.Qe3 a5 19.Ne5 Ba8 20.Rfb1 Bc5 21.Qe2 Qd4 (21...Qg5 22.Nf3 Bf3 23.Qf3 Qd2 24.Ne4-+) 22.Nf3? (22.Ra5 Rfd8 23.Rba1=+) 22...Qd8 23.Ne4 (23.Ne5 Qg5 24.g3-+) 23...Bb4-+ 24.h4 (24.Rb2 Qd5 25.Nc3 Qc4-+) 24...h6 25.d4 (25.d3 Qd5-+) 25...Qe7 (25...Qd5 26.Ng3-+) 26.Ne5? (26.Qe3 Bd5-+) 26...Rfd8 (better 26...Qh4 27.f3 Rfd8-+) 27.Qg4?? (27.Nf3-+) 27...f5 28.Qg6 (28.Qh5 Be4 29.Rc1 Rc3-+) 28...Be4 29.f3 (29.Rd1-+) 29...Bb1 30.Rb1 Qf6 0-1. BraveHeartIndian (2450) - alifie (2485), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4 d5)

3.ed5 Qd5

4.Bb2 cb4 5.a3 =.

4.Bb2 Nf6 5.Nc3!? Qe6 6.Qe2 cb4 7.Nb5 =.

4.Bb2 Nf6 5.c4 Qe4+= 6.Ne2 Nc6 (6...Qc4 7.bc5 Qc5 8.h3+=) 7.d3+= Qg6 8.bc5 e5 9.f4? (better is 9.d4!?+= is an interesting idea) 9...Bc5 (9...Ng4 10.Nbc3 Bc5 11.Ne4 Bb4 12.Bc3 Bc3 13.N2c3-+) 10.fe5? (better is 10.Nbc3!?-/+) 10...Ng4-+ 11.d4 (11.Qb3 Bf2 12.Kd1 Be3-+) 11...Nb4 (better is 11...Ne3 and Black can already relax 12.Qd2 Nb4-+) 12.Na3 (12.Nf4 Qe4 13.Qe2 Qf4 14.Qf3 Nc2 15.Kd1-+) 12...Nd3 13.Kd2 (13.Qd3 is the last straw 13...Qd3 14.dc5-+) 13...Nb2 14.Qb3 Ba3 15.Nc3 (15.Nf4 otherwise it's curtains at once 15...Qe4 16.Kc3-+) 15...Qg5 16.Ke1 Qe3 17.Be2 Nd3 18.Kd1 Ngf2 19.Kc2 Nb4 (19...Ne1! 20.Rhe1 Bf5 21.Ne4 Be4 22.Qd3 Nd3 23.c5 Nf2 24.Bd3 Qd3) 20.Kb1 Bf5 (20...Bf5 21.Ne4 Qb3 22.ab3 Be4 23.Bd3 Bd3) 0–1. Guzinski,Bartlomiej – Ladzinski,Franciszek, Poland–chT U20 2nd div, 2001. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Bb2 Nf6 5.bc5 Qc5 6.Nf3 Bf5 7.c4 (7.Nc3!?=) 7...Ne4 8.Bd4 Qa5 9.Qb3 Qc7 (9...Nc6 10.Qb7 Rc8 11.Bc3=) 10.Nc3 Nc3 (10...Nc6 11.Ne4 Be4 12.Be3+=) 11.Bc3 (11.Be5 Qd7 12.Bc3 Nc6+=) 11...Nd7 (11...Nc6 12.Be2 0-0-0 13.Qb5=) 12.d4 (12.Qa4 f6 13.Nd4 Bg6+=) 12...e6 13.Be2 Be7 14.0-0 (14.Bb4 Nf6+=) 14...0-0= 15.Rfe1 Bf6 16.Rad1 Rac8 17.Bb4 Rfd8 18.Qa3 Nf8 (18...h6 A) 19.Qa7?? Ra8 20.Ba5 Qa5 (20...Ra7?! 21.Bc7 Rc8 22.Bd6=) 21.Qa5 Ra5-+; B) 19.h3=) 19.Bf1 (19.d5 ed5 20.cd5 Qb6+=) 19...b6 20.Rd2 (20.d5 a5 21.Bf8 Rf8=) 20...Ng6= 21.Qe3 h6 22.h3 Nh4 23.Ne5 Be5 (23...Ng6 24.Nf3 Nh4 25.Ne5=) 24.de5 Rd2 25.Qd2 Bh3? (better is 25...Rd8!? 26.Qc3 Qb7+=) 26.Re4+/- Ng2 (26...Bg2 27.Bg2 (27.Rh4?! Bf1 28.Kf1 Qe5+=) 27...Nf5 28.Qe2+/-) 27.Bg2+- Bf5 (27...Bg2 28.Kg2 a6+-) 28.Bd6 Rd8 29.Rd4 (29.Bc7?! Rd2 30.Rh4 Ra2+=) 29...Qc8 30.a4 Re8 (30...Qa6 31.c5 bc5 32.Bc5 Rd4 33.Qd4+- (33.Bd4?! Qa4 34.Bf3 Qb5+=)) 31.a5 h5 (31...Rd8+-) 32.ab6 ab6 33.Qb4 Qa6 34.Bf3 g6 (34...Bg4 35.Bg4 hg4 36.Rg4 Qa1 37.Kh2+-) 35.Qb5 Qb5 36.cb5 Rc8 37.Bc6 g5 (37...Bc2 38.Be7+-) 38.Be7 1–0. Capron,Daniel (2100) – Laroche,Pascal (1805), Montdidier FRA, CNCF Ch, 2014. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Nc3 Qe6 5.Qe2 cb4 6.Nb5 Na6 7.Nf3 Qe2 8.Be2 Nf6 9.a3 e6 10.ab4= Bb4? 11.c3+- Bc5 12.d4 Be7 13.Ra6! ba6 14.Nc7 Kd8 15.Na8 Rf8 16.Ne5 Bb7= 17.Bf3 Kc8 18.Bf4 Bf3 19.Nf3+/- Nh5 20.Be5 f6 21.Bc7 Kb7 22.Kd2 Ra8 23.Ba5 Bd8 24.Bb4 Bc7 25.g3 a5 26.Ba3 Rd8 27.c4 Kc6 28.Re1 Kd7 29.Kc3 a4 30.Bb4 a5 31.Bc5 Rb8 32.Nd2 e5 33.d5 f5 34.Ra1 Nf6 35.h3 g5 36.Ra4 h5 37.Ra2 g4 38.hg4 hg4 39.Be3 Bd6 40.Kc2 Bb4 41.Nb3 Rc8 42.Kd3? Nd5!-+ 43.cd5 Rc3 44.Ke2 Rb3 45.Bb6 Kd6 46.Ba5 Kd5 47.Bb6 Ke4 48.Rc2? Bc3 49.Ba7 Bd4 50.Bd4 Kd4 51.Rd2 Ke4 52.Ra2 Kd4 53.Rd2 Kc4 54.Rc2 Rc3 55.Ra2 Kb3 56.Ra5=+ Rc2 57.Ke3= Rc3 58.Ke2 f4 59.gf4 ef4-+ 60.Rg5 f3 61.Kd2 Rc2 62.Ke1?? Re2 63.Kd1?? Re4 64.Kd2 Rd4 65.Ke3-/+ Rc4 66.Rg8 Kc2 67.Rg7 Kd1 68.Ra7 Rc2?? 69.Ra1+- Rc1 70.Ra4 Rc3?? 71.Kf4= Ke1 72.Kg3 Rc2 73.Ra1 Ke2 74.Ra4 Rc1 75.Ra2 Kf1 76.Kg4?? Kg2-+ 77.Kf4 Re1 78.Ra3 ½–½. Faccia,S (2005) – Gonzales,G (1975), Venetian Autumn Open (5), 2004.

4.Nc3 Qe6 5.Qe2 cb4 6.Qe6 Be6 7.Nb5 Na6 8.Nd4 Bd5 9.Bb5 Kd8 10.Ngf3 f6 11.0-0 e5-+ 12.Nb3 Rc8 13.d4 e4 14.Ne1 Bd6 15.g3 Ne7 16.Ng2 Rc2 17.Bf4 Bf4 18.Nf4 Nc7 19.Be2 b6 20.Rfc1 Rc1 21.Rc1 Kd7 22.Nd5 Ncd5 23.Bb5 Kd6 24.Nd2 Nc3 25.Bf1 Nc6 26.Nc4 Ke7 27.d5 Nd5 28.Nb6 Nb6 29.Rc6 Rc8 30.Rc8 Nc8 31.Bc4 Kd6 32.Kf1 Ke5 33.Ke1 Kd4 34.Bg8 Ne7 35.Bb3 Kc3 36.Kd1 a5 37.Kc1 h6 38.Bc2 f5 39.g4 g6 40.h3 Nc6 41.Bb3 Ne5 0–1. Walas,A (1830) – Bartkowiak,D (2085), 44th Rubinstein Mem Open A (4), 2008.

4.Nc3 Qe6 5.Qe2 Qe2 6.Be2 e6 7.bc5 Bc5 8.Ne4 Be7 9.Bb2 Nf6 10.Nf6 gf6 11.Nf3 Rg8 12.0-0 (12.Rg1 Bd7+=) 12...e5 13.Kh1 Nc6 14.Bb5 (14.d4 Bg4=) 14...a6 (14...Bg4 15.d4=+) 15.Bd3= h5 16.Rfe1 (16.Be4 Nb4 17.Ne1 Be6=) 16...Be6 17.Be4 0-0-0 18.Bc6 bc6 19.d4 h4 (19...Bd5 20.de5 Bf3 21.gf3=+) 20.h3= Bd5 21.Nh4 Rg5 (21...Rh8 22.Nf5 Bb4 23.Re3= (worse 23.de5 Rh3 24.Kg1 Rg8-/+)) 22.Re3 (22.c4 Bc4 23.de5 Bd5 24.ef6 Bc5=) 22...Bd6 23.Nf3 Rh5 (23...Rf5!?+=) 24.de5+- fe5 25.Ne5 (25.Be5?! Bf3 26.Bd6 Rh3 27.Kg1 Bg2 28.Kg2 Re3 29.fe3 Rd6=) 25...Rg8 (25...Bc5 26.Rd3+-) 26.f3 f5 (26...Be6 27.Rd1 (worse 27.Nc6 Bh3 28.Ne7 Be7 29.Re7 Bg2 30.Kg1 Bf3 31.Kf2 Rh3-/+) 27...Be5 28.Be5 Ba2 29.Kh2+-) 27.c4 (better 27.Rd3+-) 27...Be6?? (27...Be5 28.Be5 (28.Re5?? Bf3 29.Re8 Re8 30.gf3 Re2-+) 28...Bc4 29.Kh2+-) 28.Rc1 (better 28.Nc6 Bf7 29.Rd3+-) 28...f4+- 29.Re2 Bc5? (better 29...Rg3 30.Nc6 Bh3+-) 30.Nc6+- Bd7 31.Ne5 Bf5 32.Rd1 Rg3 (32...Be3 33.Rde1 Rg3+-) 33.Bc1 (better 33.Rd5 Bh3 34.Rc5 Kb7 35.Kg1+- (35.gh3?? Rgh3 36.Kg2 Rh2 37.Kf1 Rh1 38.Kf2 R5h2)) 33...Bh3! 34.gh3 (34.gh3 Rgh3 Mate attack) 34…Rgh3 (34...Rgh3 35.Kg2 Rg3 36.Kf1 Rh1) 0–1. Danielsson,S (1790) – Sigurvaldason,Hjalmar, Reykjavik Open (2), 2018. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Nc3 Qe6 5.Be2 cb4 6.Nb5 Qc6 7.a3 Bd7 8.c4 bc3-/+ 9.Nc3 e6 10.Rb1 Qc7 11.Bf3 Nc6 12.d4 Nf6 13.Nge2 a6 14.Bf4 Bd6 15.Bd6 Qd6 16.Rb7 Qa3 17.0-0 Rc8 18.Ne4 Ne4 19.Be4 Nd8 20.Rb3 Qd6 21.Nc3 f5 22.Bf3 0-0 23.Qa1 Qd4 24.Rd1 Qc4 25.Ra3 Bc6 26.Be2 Qb4 27.Ba6 Ra8 28.Ra2 Nf7 29.Bf1 Ng5 30.Ne2 Qg4 31.Rd3 Bg2?? 32.Bg2+/- Qe2?? 33.Rd7+- Qe1 34.Qe1 Ra2 35.h4 Ne4 36.Be4 fe4 37.Qc3 Rf6 38.Qc8 Rf8 39.Qc7 (39.Qc7 Kh8 40.Rg7+-) 1–0. Lutz,Klaus Juergen (2325) – Finegold,Benjamin (2490), Biel op (2), 1993.

4.Nc3 Qf5 5.bc5 Qc5 6.Nf3 e6 7.Ne4 Qc7 8.Bb2 Nd7 9.Bb5 Be7?? (better 9...a6 10.Be5 Qd8 11.Bd7 Qd7 12.Nd6 Kd8+-) 10.Bg7+- Qb6 (10...Qf4 11.d3 f5+-) 11.Rb1 Qa5 12.Ne5 Kd8 (12...Qa2 13.Nc3 Qa3 14.Bh8+-) 13.Nf7 Kc7 14.Qf3 Qa2 15.Qc3 Nc5 16.0-0 (16.Nc5?! Qb1 17.Ke2 Qb5 18.Nd3 Qc6 19.Qe5 Kd7 20.Bh8 Ke8+-) 16...b6 17.Qe5 (17.Qe5 Kb7 18.Nfd6 Kb8 19.Ne8 Bd6 20.Qd6 Kb7 21.Qc7) 1–0. juliangon (2685) – JPKN3 (2035), ChessWorld.net, 2018. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Nf3 cb4 5.c4 Qd8 6.Qa4 Nc6 7.d4 Bd7 8.Qb3 Qc7 9.Bb2 Nf6 10.Nbd2 e6 11.Rc1 Be7 12.Bd3 h6 13.Bb1 Nh5 14.0-0 Nf4 15.Rfe1 0-0 16.h4 g6 17.d5+/- Na5 18.Qc2 f5 19.g3+= Nh5 20.Ne5 Be8 21.Qd3 Rd8 22.Qe3 Kh7 23.g4 Bc5 24.Bd4 Bd4 25.Qd4 Ng7 26.Ndf3 Nc6 27.Nc6 bc6 28.h5 ed5 29.cd5 Qd6 30.hg6 Bg6 31.Rc6 Qd5 32.Qd5 Rd5 33.Nh4 Be8 34.Rc7 Rf7 35.Rc4 Bb5 36.Rb4 a6? 37.gf5 Bd3? 38.Rd1+- Rfd7 39.Rd3 Rd3 40.f6 Ne6 41.Nf3?? Kg8+/- 42.Bd3 Rd3 43.Ne5 Rd1 44.Kg2 Rd2? 45.Rb8 Kh7?? 46.Rb7 Kg8 47.Re7 Rd6 48.Kg3 Ng5 49.Rg7 Kf8+/- 50.Ng6 Ke8+= 51.f7 Nf7 52.f4 Rd2 53.Kg4 Nd6 54.Re7 Kd8 55.Re6 Kc7 56.a3 Rg2 57.Kh5 Rh2 58.Kg4 Rg2 59.Kf3 Ra2 60.Re3 Nc4 61.Re7 Kd6 62.f5 Ra3 63.Kf4 Ra1 64.Re6 Kc5 65.Nh4 Nd6 66.f6 Ra4-+ 67.Kg3 Kd5 68.Re7 Ra3 69.Kg4 Ra4 70.Kg3 Ra3 71.Nf3?? Ne4-+ 72.Kf4 Nf6 73.Rb7 Nh5 (73...Nh5 74.Kg4 Kc6-/+) 0–1. Trommsdorf,U – Forchert,Niko, NRW–Liga II, 1989.

4.Nf3 e6 5.bc5 Bc5 6.Nc3 Qd8 7.Rb1 Nc6 8.Bb5 Nf6 9.Bc6 bc6 10.0-0 0-0 11.Re1 a5 12.d3 Nd5 13.Ne4 Bb4 14.Bd2 h6 15.c4 Bd2 (15...f5!? 16.Ng3 Nc3 17.Bc3 Bc3+=) 16.Qd2+/- (16.Nfd2?! Nb4=; worse 16.Ned2 Nc3 17.Qc2 Nb1 18.Rb1 c5-/+) 16...Nb4 17.d4 Ba6 (17...Na6 18.c5+/-) 18.Rec1 (better 18.a3!?+-) 18...Bc8+/- 19.a3 Na6 20.Qe3 Qc7 21.Ne5 (21.c5 Nb8+/-) 21...f6 22.Nd3 e5 23.de5 fe5 24.Ndc5 (24.Ng3+/-) 24...Bf5? (better 24...Nc5!? 25.Nc5 Bf5+=) 25.Rb7+- Qd8 26.Qg3 Nc7 27.Qe5 Rc8?? (27...Rf7 28.Nd6 Re7+-) 28.Nd6 Qg5 29.f4 Qg6 30.Nc8 Re8 (30...Rc8 31.Rc7 Rc7 32.Qc7 Kh7+-) 31.Ne7 Re7 32.Qe7 (32.Rc7 Re5 33.fe5 Bh3-+) 32...Bh3 33.Qe4 (better 33.Kf2!? Qg2 34.Ke3 Nd5 35.cd5 cd5+-) 33...Qe4 (33...Bf5 34.Qe5 (34.Rc7?! Be4 35.g3 Qf5 36.Ne4 Qe4=) 34...Ne6 35.Ne6 Be6 36.Rc3+-) 34.Ne4 (34.Ne4 Ne6 35.gh3 Nf4 36.Rf1 Nh3 37.Kg2+-) 1-0. opperwezen - Zhigalko_Sergei, lichess.org, 2020. (=1.e4 c5 2.b4 d5)

4.Nf3 Nf6 5.bc5 Qc5 6.Ba3 Qa5 7.Bc4 g6 8.0-0 Nc6 9.Re1 Bg7 10.d4 0-0 11.Be7 Ne7 12.Re7 Qb4 13.Qe2?? (better is 13.Rc7+=) 13...Qb2-+ 14.Rf7 Rf7 15.Qe7 Qa1 (better is 15...Bd7 16.Bf7 Kh8-+) 16.Bf7 Kh8 17.Qd8 (17.Qd8 Ne8 18.Qe8 Bf8 19.Qf8) 1–0. Dalheim,Even – Hemmingsen,John, NOR–ch M2 Norway, 1997. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Nf3 Bg4 5.bc5 Nc6 6.c3 (better 6.Nc3!? Qc5 7.Rb1+=) 6...e5=+ 7.Be2 Bc5 8.Qb3 Nf6 9.Ba3 Ba3 (9...Bb6 10.d3-/+) 10.Na3=+ 0-0-0 11.Qd5 Nd5 12.g3 f6 13.Nd4 Bd7 14.Nb3 Bh3 15.Bf1 Bf1 16.Kf1 Rd7 17.Kg2 b6 18.Nc2 Rhd8 19.Rhe1 Nc7 20.a4 Rd3 21.Re3 R3d6 22.Re2 (22.Re4 g6=) 22...Kb7 (22...Na5!? 23.Na5 Rd2 (worse 23...ba5 24.d4+=) 24.Rd2 Rd2-/+) 23.Ra2 (23.Ne3 Rd3=) 23...Ne6=+ 24.Ne3 Ka6 (24...Rd3 25.Nc4=+) 25.Nf5 (25.Nc4 Rd3=) 25...R6d7 26.h4 g6 27.Ne3 h5 28.Nc4 Rd5 (28...Rc8 29.Re4=+) 29.Ne3 (29.d4!? Nc7 30.a5 ba5 31.de5 fe5 32.Ncd2+=) 29...Rd3=+ 30.Nc1 R3d7 31.Nb3 Nc5 (31...Rc8 32.Rb2=+) 32.Nc5= bc5 33.Nc4 (33.Rb2 Rb8 34.Rb8 Nb8=) 33...Na5=+ 34.Na5 Ka5 35.Kf1 Rb8 36.Re4 Rd6 37.Ke2 Rb1 38.Rc4 Kb6 39.a5 Kb5 40.Rca4 a6 41.c4 Kc6 42.Rc2 Rd4 43.d3 Rb3 44.Rd2 e4 45.de4 Re4 46.Kd1 Rb4 47.Rb4 cb4 48.Rd8 Rc4 49.Rb8 Kc5 50.Rg8?? (better 50.Rb6 Rd4 51.Kc2-/+) 50...Kb5-+ 51.Rg6 (51.f3 b3 52.Rb8 Ka4-+) 51...b3 52.Rg8 (52.Rf6 Ka5 53.Rf4-+) 52...Ka5 53.Rb8 Rb4 54.Rb4 Kb4 55.Kc1 f5 56.f3 Kc3 1–0. Yche,M (1920) – Lerch,Pa (2405), 33rd Avoine Open, 2018. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

4.Nf3 Bg4 5.bc5 e5 6.Nc3 Qc5 7.Rb1 Nf6 8.Rb5 (8.h3!? Bd7 9.Qe2+=) 8...Qc7 9.Be2 (9.h3 a6 10.Nd5 Qc6 11.hg4 Nd5= (11...ab5? 12.Bb5 Nd5 13.Bc6 Nc6 14.Bb2+-)) 9...Bd6 (9...Nc6 10.h3 Bf5 11.g4=+) 10.h3 (10.Ne5!? Be5 11.Bg4=) 10...Bd7=+ 11.Rb1 a6 12.Bb2 Nc6 13.d3 0-0 14.0-0 Rac8 15.Rc1 Rfd8 16.Ng5 Bf5 17.Bg4 (17.Bh5 Nh5 18.Qh5 Bg6-/+) 17...Bg4 18.hg4 Be7 (18...Qa5 19.a3-/+) 19.Re1 Bb4 20.a3 Ba5 21.Nge4 Qe7 22.Nf6 Qf6 23.Ne4 Qg6 24.Re3 Bb6 25.Rh3 f6 26.Rb1 Ba7 27.Bc1?? White plans g5 (better 27.c3=+) 27...Qe4!!-+ 28.g5 (28.de4 Rd4 Double attack (28...Rd1 Pinning; 28...Rd1 Deflection; 28...Rd4 Decoy)) 28...Qg6 (28...Qf5 29.Rf3 Qg4 30.c3-+) 29.gf6 (29.Rb7 fg5 30.Qg4 Bd4-+) 29...Qf6 30.Rf3 Qe7 31.Rg3 (31.c3 Kh8 32.Qb3 b5-+) 31...Rf8 32.Be3 Be3 (32...Qa3?! 33.Rb7 Rf7 34.Qg4=) 33.fe3 Rf7 (33...Qa3 34.Rb7 Rf7 35.Qg4=) 34.Qg4 Rcf8 (better 34...Na7 35.c4 Qa3 36.Rf3-+) 35.d4 (35.Qc4 Kh8 36.a4 h6-+) 35...ed4 36.ed4 Qd7 (36...Rf4 37.Qg5 Qg5 38.Rg5 Nd4 39.Re5-+) 37.d5 (37.Qd7 Rd7 38.c3-+) 37...Qd5 38.Kh2 Qd6 39.Rd1 Qh6 (39...Qe5 40.Qg5-+) 40.Kg1 (40.Rh3 Ne5 41.Qe4 Qf4 42.Qf4 Rf4-+) 40...Ne5 41.Qe4 Ng6 (41...Qb6 42.Qe3 Qc7 43.Qc3-+) 42.Qe6 (42.Rh3 Qg5-+) 42...Qf4 (42...Qh4!? 43.Qg4 Qe7 44.Kh2-+) 43.Rf3 Qc7 44.Rdf1 Qc5 45.Kh1 Qe7 46.Qb3 Ne5 47.Re3 (47.Rf4 b5-+) 47...Qh4 48.Rh3 Qc4 (48...Qc4 49.Qc4 Nc4 50.Rf7 Rf7-+) 0-1. Araujo,Renan Aparecido (1900) - Davanso,Joao Pedro (1715), 6th Floripa Open, 2020. (=1.e4 c5 2.b4 d5)

4.Nc3 Qe5

5.Qe2 Qe2 6.Be2 cb4 7.Nd5 Kd8 8.Nb4 e5 9.Nd5 Be6 10.Bf3 Nc6 11.Ne2 Rc8 12.0-0 Nge7 13.Ne7 Be7 14.Ng3 f6 15.d4? Bc4?? 16.Rd1= Kc7 17.d5 Nb4 18.Bb2 Rhd8 19.Bg4 Rb8 20.Nf5 Bf8 21.d6 Kc6 22.a3 Na6 23.Ne7 Kb6 24.Rab1 Ka5 25.Bc3 Ka4 26.f4! ef4 27.Rd4 b5 28.Bf3 Rb6 29.Be2 Rdd6 30.Bc4 Rd4 31.Bb3 (31.Bb3 Ka3 32.Ra1; 31.Bd4?! bc4 32.Bb6 ab6 33.Rb6 Nc5+=) 1–0. Zayan,O (2160) – Sameeh,H (2310), Golden Cleopatra (3), 2003.

5.Qe2 Qe2 6.Be2 cb4 7.Nd5 Kd8 8.Nb4 Nf6 9.d4 e5= 10.Bd2 ed4 11.Nf3 Ne4 (11...Ne4 12.a3 Bc5-/+) 0–1. letitbe (2575) – rogeliovargas (2115), net–chess.com, 2008.

5.Be2 cb4-/+ 6.d4 Qa5 7.Ne4 e6 8.Bd2 Nc6 9.Nf3 Be7 10.Bd3 Nf6 11.0-0 Qd8 12.Qe2 a6 13.Rad1 Nd5 14.a3 ba3 15.c4 Ndb4 16.Bb4 Nb4 17.Bb1 0-0 18.Rd2 h6 19.Rfd1 Bd7 20.Ne5 Ba4 21.Re1 a2! 22.Ba2 Na2 23.Ra2 Qd4 24.Nf7 Rf7?? 25.Ra4=+ Rd8 26.Raa1 Qd3 27.Qg4 Rd4 28.c5 Qc4 29.Qg6 Qd5 30.Ng3 Bc5-+ 31.h3?? Rf2! 32.Ne4 Re4! 33.Kh1 Re1 34.Re1 Qf5 35.Qe8 Kh7 36.Qb8 Rf1 37.Rf1 Qf1 38.Kh2 Bg1 39.Kg3 Bf2 40.Kg4 Qe2 (40...Qe2 41.Kf4 g5) 0–1. Faccia,Sergio (2065) – Botsari Miladinovic,Anna Maria (2325), Saint Vincent op (3), 1998.

5.Be2 cb4-/+ 6.d4 Qa5 7.Ne4 Nf6 8.Nf6 ef6 9.Bd2 Nc6 10.Nf3 Qd5 11.c4 bc3 12.Bc3 Bb4 13.Bb4 Nb4 14.Qa4 Nc6 15.0-0 0-0 16.Bb5 Bd7 17.Rac1 a6 18.Bc4 Qd6 19.Qc2 Bg4 20.Bd3? Bf3-+ 21.gf3 Qd4?? 22.Bh7-/+ Kh8 23.Qe4?? Rae8 (23...Rae8 24.Qd4 Nd4-+) 0–1. Paulis,W – Gara,A (2370), 10th ECC w Saint Vincent ITA (1), 2005.

5.Be2 cb4 6.d4 Qc7 7.Nb5= Qd8 8.Bf4 Na6 9.a3 Nf6 10.ab4 Nd5 11.Bg3 Nac7 (11...Ndb4!? 12.c3 Nd5+=) 12.Nc7 Nc7 13.c4 e6 14.Qa4 Bd7 15.Qb3 Be7 16.Nf3 0-0 17.0-0 b5 18.Bc7 Qc7 19.c5 Bc6 20.Ne5 Bd5 21.Qe3 a6 22.Bf3 Rfd8 23.Rfd1 Bf6 24.Bd5 Rd5 25.f4 g6 26.Kh1 Rad8 27.Ra6 Be5 28.fe5 Qe5 29.Qe5 Re5 30.Kg1 Re4 Attacking the backward pawn on d4 (30...Re2!? 31.Ra5 Rb8+=) 31.Rb6+/- Rdd4 32.Rd4 Rd4 33.Rb5 Rc4 34.Rb8 Kg7 35.Rb6 Kf6 36.c6 Ke5 37.b5 Kd6 38.Rb7 e5 (38...f5!? 39.Rh7 e5+/-) 39.Rf7+- e4 (39...h5 40.Kf2+-) 40.Rh7 Rc2 41.Kf1 e3 (41...Kc5 42.Rg7+-) 42.Rg7 (42.c7!? Rf2 43.Ke1 Rf8+-) 42...Kc5 43.Rg6 Kb5 44.h4 Kc4 45.c7 Kd3 46.Rd6 Ke4 47.Rd7 Kf4 (47...Kf5+-) 48.Rd4 (better 48.Rg7 Ke4 49.h5 e2 50.Kf2+-) 48...Kg3+/- 49.h5 Rc7 50.Rd5 (50.h6+-) 50...Rc1? (better 50...Kf4+=) 51.Ke2+- Rh1 52.Ke3 Kg2 53.Kf4 Kf2 54.Kg5 Kf3 55.Kg6 Ke4 (55...Ke4 56.Rg5 Rd1+-). Hrabinska,M (2235) - Sukovic,Andrej (2260), Titled Tuesday 7th July, 2020. (=1.e4 c5 2.b4 d5)

5.Nge2 cb4+= 6.d4 Qa5 7.Ne4 e5 8.f4 ed4 9.Nd4 b3 10.c3 f5 11.Nb3 Qc7 12.Ng5 Nf6 (12...Qc3 13.Bd2 Qc7 14.Bc4=) 13.Qd4 (13.Bb5 Nc6+=) 13...h6 14.Nf3 Bd6 15.Bc4 Qe7 (15...Nc6 16.Qe3 Ne7 17.Qd4=) 16.Kd1 (16.Qe3!?=) 16...Nc6 17.Qd3 (17.Qe3 Qe3 18.Be3 Ne4+=) 17...Be6 18.Nbd4 Bc4 19.Qc4 Nd4 20.Nd4 Qd7 (20...g6!?+=) 21.Re1= Be7 22.Ba3 Ne4= 23.Be7 Ke7 24.Kc2 Kf6 25.Nf5 Qd2 Attacking the isolated pawn on c3 26.Kb3 Qc3 27.Qc3+/- Nc3 28.Re5 Ne2+= 29.Re2 Kf5 30.Rd1 Kf4 31.Rd7 g5 32.Rb7 h5?? 33.Rf7 (33.Rf7 Kg4 34.Re4) 1–0. Alvarez Rodriguez,R – Fernandez Diaz,AM, Asturias–ch Primera A, 2000. (=1.e4 c5 2.b4 d5 3.ed5 Qd5)

3.ed5 Nf6

4.c4 cb4 5.Nf3 e6 6.de6 Be6 7.d4 Bd6 8.Bd3 0-0 9.0-0 Nbd7 10.Be3 Rc8 11.Nbd2 Bb8 (11...Re8 12.Re1+=) 12.h3 Nb6 Will c4 fall? 13.d5 Re8 (13...Bd7 14.a3 ba3 15.Ra3+/-) 14.Qb3 (better 14.Qb1!? Bd7 15.Qb4+-) 14...Nfd5 15.cd5 Nd5 16.Qb1 Nc3 17.Bh7 Kh8 18.Qd3 Qa5 (better 18...Ba2 19.Rfe1 Qd3 20.Bd3 b6+/-) 19.Ng5?? (19.Rfe1!? Rcd8 20.Bd4 Bf4+-) 19...Rcd8?? (19...Red8 20.Nf7 Bf7-+) 20.Qc2+/- Ne2 (20...Qc7!? 21.f4 Bh3+-) 21.Kh1+- Nd4 22.Bd4 (better 22.Qb1+-) 22...Qg5=+ 23.Be3 (23.Qd3!? Qh4 24.Be4 Bh3 A) worse 25.Qh3 Qh3 26.gh3 Rd4-/+; B) 25.gh3? Rd4 26.Qf3 Rd2 (26...Rde4?! 27.Ne4 Qe4 28.Qe4 Re4 29.Rae1+=; 26...Ree4?! 27.Ne4 Qe4 28.Qe4 Re4 29.Rfe1+=) 27.Bb7 Red8-+; C) 25.f4 Bf5 26.Kg1 Bf4 27.Nf3 Rd4 28.Nh4 Rd3 29.Bf5 Be3 30.Kh2=) 23...Qh5-/+ 24.Kg1 Qh7 25.Qh7 Kh7 26.Rab1 (26.Nb3 Be5 27.Rad1 b6-+) 26...a5 (26...Ba2 27.Rb2 Bd5 28.Rb4-+) 27.a3? (better 27.Nb3!? Bc7 28.Rfc1-/+) 27...ba3 28.Rb7 a2 29.Ra1?? (29.Rb5-+) 29...Be5 30.Ra2 Ba2 31.Nf3 (31.Kf1 Bd5 32.Ra7 Bc3-+) 31...Bc3 (31...Rd1 32.Ne1 Re1) 32.Ng5 Kg8 33.Kh2 (33.Nf3 Bb4 34.Bf4 Bd5-+) 33...Bd5 34.f3 (34.Ra7-+) 34...Be5 35.Kg1 Bb7 36.Kf2 Bd4 37.Ne4 Be3 38.Ke3 Be4 39.f4 a4 (39...Bc6 40.Kf2 Rd2 41.Kg3 Rg2 42.Kh4 Re6 43.f5 Rh6) 40.Kf2 a3 (40...Rd2 41.Ke3 Rd3 42.Ke2 a3 43.Kf1 a2 44.Kf2 Rc8 45.Kg1 Rc2 46.Kh2 Rg2 47.Kh1 a1Q) 41.Kg3 (41.f5 a2 42.Kg3 a1Q 43.f6 Qe5 44.Kg4 Bg2 45.fg7 Rd4) 41...a2 (41...Rd2 42.f5 Rg2 43.Kf4 a2 44.Ke3 Bb7 45.Kd4 a1Q 46.Kc5 Rc8 47.Kd6 Rd2 48.Ke7 Qe5) 42.Kg4 (42.f5 a1Q 43.f6 Qe5 44.Kg4 Bg2 45.fg7 Rd4) 42...a1Q 43.g3 (43.Kh4 Qf6 44.Kg3 Rd3 45.Kg4 Bf5 46.Kh5 Qh6) 43...Qf6 44.f5 (44.Kh5 Bf3 45.g4 Qh6) 44...Qf5 (44...Bf5 45.Kh5 Qh6) 45.Kh4 g5 (45...Re5 46.g4 Qf2) 46.Kh5 Bf3 47.g4 (47.Kh6 Qf6) 47…Qg6 0-1. PonzianiMaster (2405) - agnivo (2485), Rated Blitz game, lichess.org, 2021. (=1.e4 c5 2.b4 d5)

4.bc5 Qd5 5.d4 e5 6.c3 Nc6 7.Be3 b6 (7...Ng4 8.Nf3+=) 8.cb6 (8.de5 Qd1 9.Kd1 Nd5 10.cb6 Ne3 11.fe3 ab6+=) 8...ab6 (8...ed4 9.Bd4 Nd4 10.Qd4 Qe6 11.Kd2 Ne4 12.Kc1 ab6 13.Bc4 Qh6 14.Kb2+=) 9.Nf3 (9.de5 Qe5 10.Nf3 Qa5+/-) 9...ed4+= 10.Nd4 Ba6 (10...Bc5!?+=) 11.Ba6+/- Qg2 (11...Ra6 12.0-0+/-) 12.Bb5+- Qh1 13.Kd2 Qd1 14.Kd1 0-0-0 15.Bc6 Nd5 16.Bd5 Rd5 17.Nd2 g5 (17...Bc5 18.Kc2+/-) 18.Ke2+- h6 (18...Bc5 19.Ne4 h6 20.Rb1+-) 19.Rb1 f5 (19...Ra5 20.Rb6 Ra2 21.c4+-) 20.Nc4 (20.Rb6?! f4+/-) 20...f4 (20...Bc5 21.Ne6 Be3 22.fe3 Kd7+-) 21.Nb6 (21.Nb6 Kd8 22.Nd5 fe3 23.Rb7+-) 1-0. opperwezen - Lance5500 (2735), Casual Bullet game, lichess.org, 2016. (=1.e4 c5 2.b4 d5)

4.Nf3 cb4!? 5.Bb5 Bd7=.

4.Nf3 Bg4 5.bc5 Nd5 (5...Qd5 6.d4+=) 6.c4 (6.d4 e6+/-) 6...Nf4 (6...Nb4!? 7.Bb2 N8c6=) 7.d4 Bf3 (7...e5!? 8.Qa4 Bd7+=) 8.Qf3+- (8.gf3 g5 9.Bf4 gf4=) 8...Qd4?? (better is 8...Ne6 9.Qb7 Nd4 10.Qa8 Nc2 11.Ke2 Na1+-) 9.Qb7 Qa1 (9...Ne6 10.Qa8 Qe5 11.Kd2 Nd8+-) 10.Qc8 1–0. Hazlewood – Fleming, Indiana, 1980. (=1.e4 c5 2.b4 d5)

3.e5 Nc6

4.Bb5 Qb6 5.Bc6 Qc6 6.a3 (6.bc5 Qc5 7.Nf3 Bf5=) 6...Bf5 7.Qf3 (7.d3!?+=) 7...Bc2 8.Ne2 Nh6 (8...Be4 9.Qg3-/+) 9.0-0 (9.d3 cb4 10.ab4 e6 11.Bh6 gh6=) 9...Nf5 10.Bb2 e6 11.d4 cb4 12.h3 (12.Rc1 Be4 13.Qb3 Qa6-+) 12...ba3 13.Ba3 Ba3 (13...Qa6 14.Rc1 Be4 15.Qb3 Ba3 16.Nbc3 Nd4 17.Nd4 Bc1 18.Ra6 ba6 19.Qa4 Ke7 20.Nc6 Ke8 21.Nb8 Kf8 22.Qb4 Kg8 23.Qb7+-) 14.Qa3 (14.Na3 Be4 15.Qb3 Qb6 16.Qb6 ab6-/+) 14...Qa6! 15.Qc5?? (15.Qa6 ba6 Passed pawn) 15...Qc6 (better is 15...Qa1 16.Na3 Qb2 17.Nc2 Ne7-+) 16.Qb4?? (better is 16.Qa3=) 16...Bd3 17.Nec3?? (better is 17.Nbc3-+) 17...Bf1 18.Kf1 a5! 19.Qa3 b5 20.g4 Ne7 21.Ne2 Ra7 22.h4 0-0 23.h5 f6 24.ef6 Rf6 25.Qd3 b4 26.Nd2 a4 27.Rc1 Qb6 28.Rb1 h6 29.f3 Rf8 30.Kg2 Raa8 31.g5 Nf5 32.Qc2 b3 33.Qd3 b2 34.Ng1 Rfc8 35.Ne2 Qb4 36.Nf1 Ra7 37.gh6 gh6 (37...gh6 38.Ne3 a3 39.Nd5 Qc4 40.Qc4 Rc4-+) 0–1. Demeter,Vilmos – Deak,Sandor (2335), Karacsony op 3rd, 1997. (=1.e4 c5 2.b4 d5)

4.bc5 Ne5 5.d4 Nc6 6.c3 Nf6 7.Bf4 Bf5 8.Bd3 Bd3 9.Qd3 e6 10.Nf3 Be7 11.Nbd2 0-0 12.0-0 Nh5 13.Be3 Qc7 14.Rab1 b6 15.cb6 ab6 16.Rb2 Nf6 17.Ne5 Ne5 18.de5 Nd7 19.Bd4 Bc5 (19...Ba3 20.Rb5-/+) 20.Re1 Ra3 21.Qe2 Rfa8 22.Nf1 Qa7 23.Qb5 (23.Ra1!?+=) 23...Qa4 24.Qa4 R3a4 25.Bc5 bc5 26.Rb7 Ne5?? (better is 26...R8a7 27.Ra7 Ra7-/+) 27.Re5+/- Ra2 (27...h6!?+/-) 28.c4!+- R2a6 (28...dc4 29.Rc5) 29.cd5 ed5 30.Rd5 Rc6 31.Rdd7 Rf6 32.Rbc7 g6 33.Rc5 Ra1 34.g3 h5 35.h4 Kg7 36.Kg2 Re1 37.Rc2 Kh6 38.Nh2 Re5 (38...Ree6 39.g4 Rf4 40.g5 Kg7 41.Nf3+-) 39.Nf3 Ref5 40.Ng5 Kg7 41.f4 Ra6 42.Rcc7 Raf6 43.Ne4 1–0. Frink,Ferenc (2210) – Katsuhara,Osamu (2025), Eger Agria op, 2005. (=1.e4 c5 2.b4 d5)

4.f4 f6 5.bc5 fe5 6.fe5= Ne5 7.Bb5 Bd7 8.Bd7 Qd7 (worse 8...Kd7 9.Qh5 Nc6 10.Qd5 Ke8 11.Qd8 Rd8 12.Nc3+-) 9.d4 (9.Ne2 Nf6 10.0-0 Nc6=+) 9...Nc4 (9...Nc6!? 10.Nf3 e5 11.Ne5 Ne5 12.de5 Bc5=+) 10.Nf3+= Nf6 (10...Qe6 11.Qe2 Qe2 12.Ke2+=) 11.0-0 g6 (11...e5 12.Na3 Na3 13.Ba3+=) 12.Na3 (12.Qd3 e5 13.Ne5 Ne5 14.de5 Ng4+=) 12...Bg7 (12...Na3!? 13.Ba3 Bg7=) 13.Nc4+- dc4 14.Qe2 0-0 (14...Qd5 15.Rb1+-) 15.Qc4 Nd5 16.Rb1 Kh8 (16...Rf5 17.Bd2+-) 17.Rf2 (17.Bd2 Kg8+-) 17...Rac8 18.Bd2 (18.Qd3 b6 19.Ba3 Qg4+-) 18...b6+- 19.Rbf1 bc5 (19...Rf5 20.Ng5+-) 20.dc5 (20.Ne5 Qe6 21.Rf8 Bf8 22.Nf7 Kg8 23.dc5 Bg7+-) 20...Nb6 (20...Rf5 21.Ng5+-) 21.Qb4 (21.Qh4 Rf3 22.Rf3 Qd2 23.cb6 Rc2+-) 21...Nd5 22.Qh4 Rf5 (22...Rc5?? 23.Ng5 Nf6 24.Rf6 Rg5 25.Rf8 (worse 25.Bg5 ef6 26.Be3 f5=+) 25...Bf8 26.Bg5+-) 23.Ng5 (better 23.g4 Bf6 24.Qg3 Rf3 25.Qf3+-) 23...h6?? (23...Nf6 24.Bc3 Rf2 25.Rf2 h6+-) 24.Nf7 Kh7 (24...Kg8 25.Nh6 Bh6 26.Qh6+-) 25.Rf5 (25.Bh6 Rh5 26.Qe4 Bh6=; 25.Nh6?! Rh5 26.Qg3 A) 26...Rh6? 27.Bh6 Bd4 28.Qh4 Bf2 29.Rf2+- (29.Kf2?! Qf5 30.Kg1 Qh5 31.Qh5 gh5+-); B) 26...Rc5?! 27.Qd3+=; C) 26...Nf6=) 25...gf5 26.Nh6 (26.Nh6 Bf6 27.Qh3+-) 1–0. Janek – Yuoannot, internet, 2018. (=1.e4 c5 2.b4 d5 3.e5 Nc6)

3.e5 Qc7

4.Nf3 Bg4 5.Bb5 Nc6 6.0-0 cb4 7.d4 a6 8.Be2 e6 9.a3 Rc8 10.ab4 Bb4 11.c3 Be7 12.h3 Bf5 13.Be3 Nb8 14.Ne1 b5 15.Nd3 Bd3 16.Bd3 f5 17.g4 g6 18.gf5 ef5 19.Qf3 Qc6 20.Kh1 Nd7 21.Nd2 Qe6 22.Rfc1 h5 23.Bf1 Bf8 24.Bg2= Ne7 25.Bg5 Bh6 26.Bh6 Rh6 27.Qe3 Ng8 28.Nf3 Nf8 29.Ne1 Rh7 30.Nd3 Ne7 31.Nb4 Ra8 32.Qf3 Ra7 33.Nd5 Nd5 34.Qd5 Rhc7 35.Qf3 Kf7 36.Qe3 Nd7 37.Re1 Nb6 38.Kh2 Nd5? 39.Qh6+- Nc3 40.Rac1 b4? 41.d5!+- Qb6 42.Qh7 Kf8 43.Qh8 Kf7 44.d6 Ne4 45.dc7 Qf2 46.Qh7 (46.Qh7 Ke6 47.Rc6 Ke5 48.Qe7 Kf4 49.Re4 fe4 50.Qe4 Kg5 51.Rg6) 1–0. Gietl,Thomas (2305) – Dickl,Errol (2055), Regionalliga NO9899, 1998.

4.Nf3 Bg4 5.Bb5 Nc6 6.0-0 Bf3 7.Qf3 Qe5 8.bc5 Qa1 9.Nc3 e6 10.Ba3 Qf1 11.Bf1 a6 12.Na4 Nf6 13.Qb3 Rb8 14.Qb6 Nd7 15.Qc7 Be7 16.Bb2 Bd8 17.Qg3 Rg8 18.Bd3 g6 19.Qf4 h5 20.c4 d4 21.Be4 e5 22.Qf3 Rc8 23.Bd5 Rg7 24.Ba3 f5 25.g3 Be7 26.Be6 Rc7 27.Nb6 Nc5 28.Bc5 Bc5 29.Nd5 Bd6 30.Nc7 Bc7 31.Qb3 Na5 32.Qa4 Kd8 33.Qb4 Re7 34.Bd5 b6 35.c5 bc5 36.Qc5 Ke8 37.Qa7+- Kf8 38.Qa6 Kg7 39.Qc8 Bd6?? 40.Qg8 Kf6 41.Qh8 (41.Qh8 Rg7 42.Qd8 Be7 43.Qa5+-; 41.Qf8 Rf7 42.Qf7 Kg5 43.h4 Kh6 44.Qg8 e4 45.Qh8) 1–0. Gietl,Thomas (2295) – Rupprecht,Andreas (2230), Regionalliga NO9798, 1997.

3.e5 d4

4.bc5 Nc6 5.c3 Bf5 (5...Qd5 6.Nf3 Bg4 7.cd4 Bf3 8.Qf3 (worse 8.gf3 Qd4 9.Nc3 Qe5 10.Be2 Qc5-/+) 8...Qf3 9.gf3 Nd4 10.Bb2 Nc2 11.Kd1 Na1 12.Bb5 Kd8 13.Ba1=+) 6.Nf3 e6 (better 6...Qd5 7.Ba3 d3=) 7.cd4+/- Nd4 8.Bb2?? (8.Qa4 Nc6 9.d4 Qd7+/-) 8...Nc6 (better 8...Nc2 9.Qc2 Bc2 10.Bb5 Ke7-+) 9.d4+/- f6 10.ef6 Nf6 11.Bd3 (11.Qb3 Rb8+/-) 11...Be7 (better 11...Bc5 12.Bf5 Bb4 13.Bc3 ef5 14.Bb4 Nb4+=) 12.Bf5+- ef5 13.Qb3 (13.0-0 Qd7+/-) 13...Qd5 14.Qb7?? (better 14.Nc3 Qb3 15.ab3+/-) 14...0-0?? (better 14...Qe4 15.Kf1 Rb8-/+) 15.Qb3+- Rab8 16.Qd5 Nd5 17.Bc1?? (better 17.Nc3+-) 17...Bf6= 18.0-0?? (better 18.Bg5 Nd4 19.Bf6 Nf3 20.Ke2 Nh2 21.Bh4 Rfe8 22.Kd2=+) 18...Nd4-+ 19.Nd4 Bd4 20.Na3 Ba1 21.Bg5 (21.Nc4 Bd4 22.Ba3 Rbe8-+) 21...Bf6 22.Rd1 (22.Bf6 Rf6 23.Nc4 Rb5-+) 22...Bg5 (22...Nc3 23.Rd3 Rfd8 24.Rd8 Rd8 25.h4 Bg5 26.hg5-+) 23.Rd5 Rfd8 24.Rd8 Rd8 25.Kf1 Be7 26.c6 (26.Ke2-+) 26...Ba3 27.Ke2 Rc8 28.Kf3 (28.Kd3 Rc6 29.g3 Rh6-+) 28...Rc6 29.Kf4 Rc2 30.f3 Rg2 31.Kf5 Rh2 32.Kf4 Ra2 33.Ke3 h5 34.Ke4 h4 35.Kf4 h3 36.Kg3 h2 37.Kg4 h1Q 38.f4 (38.Kf4 Re2 39.Kg4 Qg2 40.Kf5 g6 41.Kf4 Bd6) 38...Qh6 (38...Qd1 39.Kg3 g5 40.fg5 Bd6 41.Kh4 Rh2) 39.Kf5 Qf6 (39...Qh3 40.Ke4 Rd2 41.f5 Bd6 42.f6 Qd3) 40.Ke4 Re2 41.Kd3 (41.Kf3 Qa6 42.f5 Qd3 43.Kf4 Bd6 44.Kg5 Qg3 45.Kh5 Rh2) 41...Qe6 (41...Qa6 42.Kd4 Qb5 43.f5 Bb2) 42.f5 (42.Kc3 Bb2 43.Kb4 Qd5 44.f5 Re4) 42...Qe4 43.Kc3 Rc2 (43...Re3 44.Kd2 Qd3) 44.Kb3 Qc4 45.Ka3 Ra2 0-1. maroski9 (2500) - alifie (2435), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4 d5)

4.bc5 Bf5 5.Qf3 Qd7 6.Na3 (6.Qb3 Nc6+=) 6...Nc6 7.Bb5 e6 8.Nc4 Bc5 9.Ba3 Ba3 10.Qa3 (worse 10.Na3 Nge7=+) 10...Nge7 11.Nd6 Kf8 12.Nf3 Kg8 13.0-0 Bc2 (13...Qc7!?+/-) 14.d3+- a6 15.Rfc1 Qd8 (15...Bd1 16.Rd1 Rb8 17.Bc6 Nc6+-) 16.Bc6 (16.Rc2?! ab5 17.Qc5 b6 18.Qb5 Ra5=) 16...Nc6 17.Rc2 f6 18.Rb1 Ra7 (18...fe5 19.Rb7 Na5 20.Rbc7+-) 19.Qb3 Qd7 20.Rc6 (20.Rc6 h6 21.Rb6+-) 1-0. BriceNo (2420) - alifie (2505), Rated Blitz game, lichess.org, 2019. (=1.e4 c5 2.b4 d5)

4.bc5 Bf5 5.Nf3 e6 6.d3 (better 6.Bb5!? Nc6 7.Ba3+=) 6...Bc5=+ 7.Ba3?? (better 7.c3=+) 7...Ba3-+ 8.Na3 Qa5 9.Qd2 Qa3 10.Be2 (10.Rc1 Nc6 11.c3 Qa4-+) 10...Nc6 11.0-0 Rd8 12.Nh4 Nge7 13.Bf3 0-0 14.Bc6 bc6 15.f4 (15.Rfb1 Rb8-+) 15...h6 (15...Rb8 16.Qe2 Qc3 17.g4-+) 16.h3 (16.Rfb1 Rb8-+) 16...Nd5 17.g4 Bh7 18.f5 (18.Ng2 Rb8-+) 18...Ne3 19.Rf3 ef5 20.gf5 Rde8 21.Re3 de3 22.Qe3 Qc3 23.Re1 c5 (23...Qc2 24.Re2 Qb1 25.Kg2-+) 24.f6 (24.Re2 c4 25.d4 Qa1 26.Kh2 Rb8-+) 24...g5 (24...gf6 25.Kh1 Re5 26.Rg1 Rg5 27.Rc1-+) 25.Ng2 (25.Re2 c4-+ (25...gh4 26.Qh6 Qe1 27.Re1 Bd3 28.Qg7)) 25...Re6 26.h4 Qd4 (26...Rfe8!? 27.Qf3 gh4 28.Qh5 Re5 29.Re5 Qe5 30.Qh4 Qd4 31.Qd4 cd4 32.Kf2-+) 27.hg5 hg5 28.Kh2 (28.Kf1 Qe3 29.Re3 Rfe8-+) 28...Qe3 29.Re3 Rfe8 30.d4 (30.Rg3 Re5 31.c3 Rd8-+) 30...cd4 31.Rg3 (31.Ra3 Re5 32.Ra7 Bc2-+) 31…Re5 0-1. maroski9 (2430) - alifie (2525), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4 d5)

4.bc5 Bf5 5.f4 e6 6.Nf3 Nc6 7.Bb5 Bc5 8.Bc6 bc6 9.d3 (9.Ba3 Bb6=+) 9...Bb4 10.Bd2 Bd2 (10...Be7!?=+) 11.Nbd2= (worse 11.Kd2 Nh6-/+) 11...Ne7 12.0-0 Nd5 13.Nb3 (13.Nc4 Nc3 14.Nd6 Qd6 15.ed6 Nd1 16.Rad1 Bg4=+) 13...Ne3 14.Qe2 (14.Qd2!? Nf1 15.Rf1=) 14...Nf1=+ 15.Nbd4 (15.Rf1!? c5 16.Nc5=+) 15...Nh2!-/+ 16.Kh2 (16.Nh2 Qd4 Double attack (16...Qd4 Deflection; 16...Qd4 Overloading); 16.Kh2 Qd7 Combination) 16...Bg4 17.Nc6 Qd5 18.Ncd4 Rd8 19.Qe3? (19.Qe4 Bf3 20.Nf3 Qe4 21.de4 Ke7=+) 19...0-0 (19...Qc5 20.Qg1-+) 20.c4 Qb7 (20...Qc5 21.Qe4-/+) 21.Rd1 Rd4 (21...Qb6 22.Re1-/+) 22.Qd4=+ Bf3 23.gf3 Qf3 24.Rg1 Qh5 25.Kg2 Rb8 26.Kf2 g6 (26...Qh2 27.Kf3=+) 27.Rg5 (27.Qa7 Rb2 28.Ke3 Qe2 29.Kd4 Qf2 30.Kc3 Qa7 31.Rg6 hg6 32.Kb2 Qd4 33.Kc2 Qf4-+) 27...Qh4 28.Kg2 h6 29.Rg3 Rb1 30.Rh3 (30.Qa7?? Qh1 31.Kf2 Qh2 32.Kf3 Rf1 33.Ke4 Qg3-+) 30...Qg4 31.Rg3 Qe2 32.Qf2 Qf2 (32...Qd1 33.Rh3 Rc1-+) 33.Kf2=+ Rb2 34.Ke3 Ra2 35.Rg1 Ra5 36.Rc1 g5 37.c5 gf4 38.Kf4 Ra4 (38...Rb5 39.d4=) 39.Kf3 (better 39.Ke3 Rb4 40.c6+=) 39...Kf8?? (better 39...Rd4 40.Ke3 Rd8=) 40.c6+- Kg7 (40...Ra5 41.d4 Ra3 42.Ke4+-) 41.c7 Rh4 (41...h5 42.c8Q Rg4 43.Qd8 a6 44.Qf6 Kh7 45.Qf7 Kh6 46.Qf8 Rg7 47.Rg1 h4 48.Qg7 Kh5 49.Qg6) 42.c8Q (42.Rg1 Kh7 43.c8Q Rh3 44.Ke2 Rh2 45.Ke1 Rg2 46.Rg2 h5 47.Qg8 Kh6 48.Qg7) 42...Rh3 (42...Rh5 43.Qd8 Rf5 44.Kg3 Rg5 45.Kh4 Re5 46.Qd4 Kg6 47.Qe5 Kh7 48.Rg1 f6 49.Qc7 Kh8 50.Qg7) 43.Kg2 (43.Kg4 Rh2 44.Rg1 Kh7 45.Kf3 Rh3 46.Ke2 Rh2 47.Ke1 Rg2 48.Rg2 h5 49.Qg8 Kh6 50.Qg7) 43...Rh4 (43...Rh5 44.Qd8 Rf5 45.Kg3 Rg5 46.Kh4 Re5 47.Qd4 Kg6 48.Qe5 Kh7 49.Rg1 f6 50.Qc7 Kh8 51.Qg7) 44.Rg1 (44.Qd8 Rg4 45.Kf3 Rg3 46.Kg3 Kh7 47.Rc8 Kg6 48.Qf6 Kh5 49.Qf7 Kg5 50.Rg8) 44...Rg4 45.Kf2 Rg5 46.Rg5 hg5 47.Qb7 Kg6 48.Qa7 1-0. maroski9 (2435) - alifie (2525), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4 d5)

2...d6

3.a3 a6 4.Nc3 Nc6 (4...Nf6 5.Nf3=) 5.bc5 (5.b5 Nd4=) 5...dc5 6.f4 (6.Nf3 Nf6=) 6...g6 (6...e5 7.fe5 Ne5 8.Be2=) 7.Bb2 (7.Nf3 b5=) 7...Bg7 8.Nf3 (8.Rb1 b5=) 8...b5 (8...Nf6 9.Nd5=) 9.Rb1 Bb7 (9...Nf6 10.a4 b4 11.Nd5=) 10.g3 (10.Na4 Bb2 11.Rb2 Qa5 12.Nc5 Qa3=) 10...Nd4 11.Bg2 Nf6 12.e5 (12.d3 Ng4 13.Nd4 cd4 14.Qg4 dc3=+) 12...Nd7 (12...Ng4 13.Rg1=) 13.0-0 Nb6 14.d3 (14.Rf2 Rb8=) 14...0-0 15.Nd4 (15.Ne4 Be4 16.de4 Nf3 17.Qf3 Nc4=) 15...Qd4 16.Kh1 (16.Rf2 Bg2 17.Kg2 Nd5=) 16...Qd7 (16...Bg2 17.Kg2 Qd7 18.Qf3=) 17.Ne4 Rac8 (17...f5 18.ef6 (18.Nc5? Bg2 19.Kg2 Qc6 20.Qf3 Qc5-+) 18...ef6 19.Qf3= (19.Nc5? Bg2 20.Kg2 Qc6 21.Ne4 f5-+)) 18.Qe2 (18.Qf3 Bd5=) 18...Rfd8 (18...Na4 19.Ba1=) 19.Rbd1 (19.Bc3 c4 20.Ba5 cd3 21.cd3 Be4 22.de4 Rc6+-) 19...Qc7 (19...Na4 20.Ba1=) 20.c4 (20.Kg1 Bd5=) 20...Nd7 (20...Na4 21.Ba1=) 21.Rc1 (21.e6 fe6 22.Bg7 Kg7 23.cb5 ab5 24.Qb2 e5 25.Qb5 ef4 26.Qb2 Nf6 27.Rf4 Be4 28.Re4 Kf8+=) 21...Qb6= 22.Kg1 Nf8 (22...h6 23.Rf2=) 23.f5 gf5 24.Rf5 Ne6 (24...bc4 25.dc4 Rb8 26.Rb1=) 25.Rcf1 Rf8 (25...bc4 26.dc4 Rb8 27.Ba1+=) 26.Ba1 (26.Qf2 bc4 27.dc4 Qb3=) 26...bc4 27.dc4 Qb3?? (better 27...Nd4 28.Bd4 cd4+=) 28.Nd2+- Qc2 (28...Qa2 29.Bb7 Rcd8 30.Bd5+-) 29.Bb7 Rcd8 30.Bd5 Nc7 31.R5f2 (better 31.Rf7!? Nd5 32.Rf8 Rf8 33.cd5 Rf1 34.Kf1 Qc1 35.Qe1 Qa3+-) 31...Nd5 32.cd5 Rd5 33.Nf3 (33.Qe3 Qg6 34.Nc4 Bh6+-) 33...Qb3? (33...Qe2 34.Re2 Rd3 35.a4+-) 34.Qe4 (34.Qa6!? Rd1+-) 34...h6 35.Nh4 (better 35.Qh4 Re8 36.Nd2+-) 35...e6?! (35...Qd3 36.Qg4 e6 37.Bb2+-) 36.Ng2 (better 36.Ng6 fg6 37.Rf8 Bf8 38.Qg6 Bg7+-) 36...Rd1 (36...Qa3 37.Nf4 Rdd8 38.Nh5+-) 37.Rd1 Qd1 38.Rf1 Qb3 39.Ne3 (39.Qc6 Qa3 40.Qd6 Qa5+-) 39...Rd8 (39...Qa3 40.Nc4 Qa4 41.Bc3+-) 40.Qf4 Rd7 (40...Kh8 41.Nc4+-) 41.Ng4 (41.Nc4 Qd3+-) 41...Kh7 42.Qe4 Kh8 43.Nf6 (43.Qa8!? Kh7 44.Qa6 Rd1+-) 43...Bf6 44.ef6 Rd8 (44...Qa3 45.Qe6! fe6 46.f7 Kh7 47.f8Q Qe3 48.Kg2 Qe2 49.Rf2 Qf2 50.Kf2+-) 45.Be5 (45.Qf4 Kh7 46.Qc7 Qe3 47.Kg2 Qd2 48.Kh3 Kg6 49.Qc5 Rd5+-) 45...Rg8 (better 45...Qa3 46.Ra1 Qb4+-) 46.Bf4 Rg6 (46...Qd5 47.Qe3+-) 47.Bc1 (47.Qg6 fg6 48.f7 Qb8 49.Bb8 Kh7 50.f8Q g5 51.Qe7 Kg6 52.Qf7) 47...c4 (47...Kh7+-) 48.Qg6! (48.Qg6 fg6 49.f7 Qb6 50.Kg2 Qb7 51.Kh3+-) 1–0. Selzler,Richard (2205) – Finney,Stuart (2140), US Amateur Team Ch East, 2012. (=1.e4 c5 2.a3 d6 3.b4 a6)

3.a3 b5? 4.Bb5+- Bd7 5.Bd7 Qd7 6.Nf3 Qb7 (6...Nc6!? 7.0-0+-) 7.0-0 Nf6 8.bc5 Ne4 9.cd6 (9.Re1 dc5 10.Ne5 Nf6+-) 9...Nd6 (9...e6 10.d3 Nd6 11.c4+-) 10.Nc3 g6 (10...e6 11.Rb1 Qc8 12.a4+-) 11.Rb1 Qd7 (11...Qc8 12.Re1 Bg7 13.Bb2+-) 12.Ne5 Qf5 (12...Qc8 13.Nb5 Bg7 14.Nd6 ed6 15.Qf3 de5 16.Qa8+-) 13.Nd5 Na6 (13...Nd7 14.Nc7 Kd8 15.Na8 Ne5 16.Bb2+-) 14.Qe2 (better 14.c4 Nc5 15.d4+-) 14...Qc2 (14...Rb8 15.Bb2 Nc5 16.Nc7 Kd8 17.Nc6 Kc7 18.Nb8 f6 19.Na6 Kd8+-) 15.Qa6 Qb1 16.Qc6 Kd8 17.Qd7 1–0. Ponomarev,Grigori (2135) – Song,Zihou (1635), RUS–CHN Junior Match, 2018. (=1.e4 c5 2.a3 d6 3.b4 b5?)

3.Bb2 Qb6 4.b5= a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nf6 8.Nc3 g6 (8...e5 9.Bc4=) 9.Nd5+= Qd8 10.b6 Bg7 11.Ne2 (11.Bb5 Bd7 12.Bf6 Bf6 13.Nc7 Kf8=) 11...0-0 12.Nec3 (12.Bf6 Bf6 13.Ng3 e6 14.Nf6 Qf6+=) 12...e6 13.Nc7 Nbd7 14.Qb1 Ne8 15.Na8 Ne5 16.f4 Nc6 17.Bb5 (17.Nb5!?+=) 17...Bd7-/+ 18.Qa2?? (better is 18.Nc7-/+) 18...Nb4-+ 19.Qa5 Nc2 (19...Bb5 20.Nb5 Nc2 21.Ke2 Ba1 22.Ra1 Na1 23.Qa1-+) 20.Kf2 (20.Kd1 Na1 21.Bd7-+) 20...Bb5 21.Nb5 Na1 22.Ra1 Ba1 23.Qa1 Qf6 (better is 23...Qh4!? 24.Kf3-+) 24.Qf6 Nf6 25.Nac7 Ne4 26.Ke3 d5 27.d3 (27.h3 Nf6-+) 27...Nf6 28.Nd6 Nd7 (28...Rb8 29.Ncb5-+) 29.Nb7 Rb8 (29...Nb6?! 30.Nc5 Rc8 31.N7a6-+) 30.Nd6 Rb6 (30...Nb6?! 31.Na6 Ra8 32.Nc5-+) 31.Ndb5 Rb7 32.Kf3 (32.h3 Kf8-+) 32...Kf8 33.Ke3 Ke7 34.Kf3 Kd8 0–1. Kalchev,Vasiliy – Grigorjan,Arman, UKR–ch sf U12, 2007. (=1.e4 c5 2.b4 d6)

3.b5 h6 4.Nf3 e5 (4...Nf6 5.Nc3=) 5.c4 (5.Nc3 Be6+=) 5...Nf6= 6.Nc3 Bg4 (6...Be7 7.Be2=) 7.Be2 Be7 8.0-0 Nh5 (8...Be6 9.d3=) 9.Nd5 (9.d4 Bf3 10.Bf3 cd4 11.Bh5 dc3+=) 9...Nf6 10.Nh4?? (better 10.Nf6 Bf6 11.Ne1 Be2 12.Qe2+=) 10...Be2-+ 11.Qe2 Nd5 12.Nf5 (12.cd5 Bh4 13.d3 Nd7-+) 12...Nf4 13.Qg4 g6 (13...Bf6 14.d4 g6 15.Ng3-+) 14.Ng3 (14.Ne7 h5 15.Qd1 Qe7-+) 14...h5 (14...Bg5 15.Ne2-+) 15.Qf3 (15.Qd1 Bg5-+) 15...Bh4 (15...Bg5 16.Ne2-+) 16.d3 (16.Ne2 Bg5 17.Nf4 Bf4 18.a4-+) 16...Bg3?? (16...Qf6 17.Ne2 Ne6 18.Qh3-+) 17.hg3?? (better 17.fg3 g5 18.gf4 gf4 19.g3=) 17...Ne6-+ 18.Qe3 (18.Be3 h4-+) 18...Nd4 (18...h4 19.Rb1-+) 19.Qd2 (19.Rb1 Nd7-+) 19...0-0 (19...h4!? 20.Bb2-+) 20.Qh6 Ne6 (20...Qd7 21.Be3-+) 21.f4 Qf6 22.fe5 (22.f5 Nd4-+) 22...Qe5 23.Be3 Qg3 24.Rf3 Qg4 25.Raf1 Nd8 (better 25...Nd7 26.Rh3 a6-+) 26.Bg5 Nd7 27.Be7 Ne6 28.Bd6 (28.Bf8 Rf8 29.Qe3-+) 28...Ng5?? (better 28...Nd4 29.Rh3 Rfe8-+) 29.e5?? (better 29.Rg3 Qg3 30.Bg3+-) 29...Nf3-+ 30.Rf3 Rfe8 31.Qe3 Re6 32.Rf4 (32.Rf1-+) 32...Qd1 (better 32...Qg5-+) 33.Rf1 Qg4 34.Qf2?? (34.Rf4 Qg5 35.Qf3 Ne5 36.Be5 Re5 37.Qf2-+) 34...Qd4-+ 35.Qd4 cd4 36.Re1 (36.a4 Ne5 37.Be5 Re5-+) 36...Rae8 37.Re4 (37.Rf1 Ne5 38.Be5 Re5-+) 37...Ne5 (better 37...f6 38.Rd4 fe5 39.Rd5-+) 38.Rd4 (38.Be5 Re5 39.Rd4 Re2-+) 38...Ng4 39.g3 (39.Re4 Re4 40.de4 Re4-+) 39...Re2 (39...Re1 40.Kg2 R8e2 41.Kf3 Rf2) 40.Bf4 (40.Re4 R8e4 41.de4 Ra2-+) 40...Ra2 (40...Re1 41.Kg2 R8e2 42.Kf3 Nh2) 41.Re4-+ Rd8 (41...Re4 42.de4 Nf2 43.e5-+) 42.d4 f5 43.Re6 Rd4 (43...Rd4 44.Rg6 Kh7-+) 0–1. Goldmund,Heike – Stoyanov,Zdravko, FICGS, 2015. (=1.e4 c5 2.b4 d6)

3.Bb5 Bd7 4.Bd7 Nd7 5.bc5 dc5 6.Nf3 e5 7.0-0 Ngf6 8.Nc3 Be7 9.d3 h6 10.Nd5 (10.Nh4 g6+=) 10...0-0 11.Be3 Rc8 ½–½. Akram,Shumon – Becker,Sven (1685), Hamburg–ch U18, 2009. (=1.e4 c5 2.b4 d6)

3.c3 Nc6 4.d4 cb4 5.cb4 (5.d5 Ne5 6.cb4 Qb6=) 5...Nb4 (5...Qb6 6.Be3 Qb4 7.Nd2+=) 6.Qa4 Nc6 7.d5 This push gains space 7...Qa5 8.Qa5 Na5 9.Bd2 b6 10.Nc3 a6 (better is 10...Nf6=) 11.Na4+/- Rb8 12.Nb6 Rb6 13.Ba5 Rb8 14.Rc1 g6 15.Nf3 (15.Bd3 Bh6 16.Rc7 f5=) 15...Bg7 (15...Bh6 16.Bd2=) 16.Bd3 Nf6 17.Rc7 e5 (17...e6 18.de6 Be6 19.Nd4=) 18.0-0 0-0 19.Rfc1 (19.Rc6 Bd7 20.Ra6 Ra8 21.Ra8 Ra8+=) 19...Bh6 (19...Bd7 20.h3+= (20.Ba6? Ra8-+)) 20.R1c6 Rd8?? (better is 20...Bb7 21.Rc4 Rfe8+/-) 21.Ne5!+- de5 22.Rf6 Rd7 23.Rd7 Bd7 24.Ra6 Bb5 25.Bb5 Rb5 26.g3 Rb7 27.Bc3 Re7 28.Ra8 Kg7 29.d6 (29.d6 Rb7 30.a4+-) 1–0. Subramaniam,Rahul – Williams,Zach, CalChess–ch Monterrey, 2002. (=1.e4 c5 2.b4 d6)

3.c3 e5 4.bc5 Qh4 5.Qc2 =.

3.Nc3 cb4 4.Nd5 -/+.

3.Nc3 Nf6 4.Bc4 (better is 4.bc5!? dc5 5.Nf3+=) 4...cb4-/+ 5.Nd5 Ne4 6.Qe2 Bf5?? (6...Nf6 7.Nb4 e6 8.Bb2-/+) 7.d3?? (7.Bd3 Nf2 8.Bb5 Nd7 9.Qf2 Bc2 10.Nb4+=) 7...Nc3 8.Qe3 (8.Nc3 bc3 9.Rb1 Nc6-+) 8...Nc6-+ 9.Qg5 (9.Nc3 bc3 10.Ne2-/+) 9...e6 10.Nc3 bc3 11.Qd8 Rd8 12.Bg5 (12.Bb5 d5-+) 12...f6 13.Be3 d5 14.Bb5 a6 15.Ba4 (15.Bc6 bc6 16.Bd4 e5 17.Bc3 d4-+) 15...Be7 (15...b5!? 16.Bb3-+) 16.Bb6 Rd7 17.Rb1 0-0 18.Be3? b5 19.Bb3 e5 20.a4 b4 21.d4 Nd4 22.Bd4 ed4 23.Nf3 Re8 24.0-0 d3 25.Nh4 Be4 26.f3 Bc5 27.Kh1 dc2 28.Rbc1 Bd3 29.Rfe1 Rde7 30.Bd5 Kf8 31.Nf5 Re1 0–1. Yepez,Laura – Herrera Sosa,Jessica, Pan American–ch U10 Girls, 2003. (=1.e4 c5 2.b4 d6)

3.c4 Nf6 4.d3 g6 5.Bb2 Bg7 6.b5 0-0 7.Nc3 a6 8.a4 Nbd7 9.Nf3 b6 10.Be2 Bb7 11.0-0 Qc7 12.Qc2 ab5 13.ab5 Ng4 (13...e6 14.Qb3=) 14.Nd5+= Bd5 15.ed5 Bb2 16.Qb2 Rfd8 17.Ng5 Ngf6 18.f4 Ra7 19.g4 Rda8 20.Ra7 Ra7 21.Nh3 Ra5 22.Bd1 Qa7 23.Qe2 Nf8 24.f5 Ra2 25.Qe3 Qa3 (better is 25...Qd7!?+=) 26.Nf2 Qa7 27.h4 (27.g5 Ne8 28.Ng4 f6+-) 27...Qd7 (27...gf5!? 28.Qg5 Kh8 29.Qf5 Qd7+=) 28.g5+/- Nd5 29.cd5 Qf5 (better is 29...gf5!? 30.h5 e5 31.de6 fe6+=) 30.Ng4+- Qd5 31.Nh6 Kh8 32.Bf3 1–0. Berkes,Dezso – Duvai,Geza, HUN–ch I486 corr, 1998. (=1.e4 c5 2.b4 d6)

3.Bc4 Nc6 4.bc5 dc5 5.Nf3 Nf6 6.Nc3 (6.e5 Ng8=) 6...Bg4 (6...a6 7.h3=) 7.h3 (7.e5 Bf3 8.Qf3 Ne5 9.Bb5 Nc6 10.Bc6 bc6 11.Qc6 Nd7+/-) 7...Bh5 (7...Bf3!? 8.Qf3 Nd4=) 8.e5 (8.g4 Bg6 9.d3 Qa5+=) 8...Bf3= 9.Qf3 Ne5 (9...Qd4!? should be considered 10.0-0 Qe5=) 10.Bb5+/- Nfd7 11.Qb7 e6 (11...Qc8 12.Qc8 Rc8 13.Rb1+=) 12.f4 (12.Rb1 Bd6 13.f4+/-) 12...Rb8? (better is 12...a6 would keep Black in the game 13.Bd7 Nd7+=) 13.Qa7+- Ra8 14.Qb7 Rb8 15.Qe4 Qh4 16.Ke2 Ng6 17.Bd7 Kd7 18.Qa4 Kd8 19.d3 Bd6 20.Rf1 Qh5 21.Rf3 Nh4 22.g4 Qh6?? 23.Rf2 f5? 24.Bd2 Qg6? 25.Nb5+- e5 26.Nd6 Qd6 27.Re1 Re8? 28.Ba5 Ke7 29.fe5 Qd5? 30.gf5 g5 31.Qe4 Qf7 32.Bc3 Qa2 33.Kd2 Qa6 34.e6 Kf8 35.e7 Kg8 36.Qd5 (36.Qd5 Qe6 37.Qe6) 1–0. Iodo,Anna (2130) – Kublashvili,Etery, St Petersburg Rudenko Mem, 2002. (=1.e4 c5 2.b4 d6)

3.bc5 Nc6 4.d4 dc5 5.d5 Ne5 6.Bb2 Qd6 7.Nf3 Bg4?? (better 7...Nd7+=) 8.Ne5+- (8.Be5?! Bf3 9.Bb5 Kd8 10.Bd6 Bd1 11.Be7 Be7 12.Kd1 Bf6+-) 8...Bd1 (8...Bd7 9.Qf3 Nf6 10.Nc4+-) 9.Bb5 Kd8 10.Nf7 Kc7 11.Nd6 (11.Nh8?! Bc2 12.Nd2 Qb6=) 11...ed6 12.Kd1 a6 13.Be2 Nf6 14.Nd2 Be7 15.f4 White plans e5 15...Rhd8 (15...Rhf8 16.Rf1+-) 16.c4 Rdb8 17.e5 de5 (17...Nd7 18.Bd3+-) 18.fe5 Ne8 19.Rf1 Kb6 (19...b5 20.Rf7 Kd8 21.Ne4+-) 20.Rf7 Bg5 21.Rb1 Ka7 22.Ba3 a5 (22...Nc7 23.Rc7 Be3 24.Ne4 a5 25.Nc5 Bc5 26.Bc5 Ka6 27.Rb6 Ka7 28.Rf6) 23.Bc5 Ka6 24.Rb6 Ka7 25.Rbb7 (25.Rbf6) 25...Ka6 26.Ra7 Ra7 27.Ra7 1–0. juliangon (2695) – 19larry (1740), ChessWorld.net, 2019. (=1.e4 c5 2.b4 d6 3.bc5 Nc6)

3.bc5 d5 4.e5 Nc6 5.d4 Bf5 6.c3 e6 7.Qa4 Qa5 8.Qa5 Na5 9.Bb5 Nc6 10.Nf3 Be7 11.Nbd2 a6 12.Be2 Bg5?? (12...f6 13.ef6 Bf6 14.h3+/-) 13.h4 (better is 13.Ng5 f6 14.g4 fg5 15.gf5 ef5 16.Rg1+-) 13...Bd8+/- 14.g4 Be4? (better is 14...Bg4 15.Rg1 Nh6+=) 15.Ne4+- de4 16.Nd2 f5 17.Nc4 Bc7 18.Nd6 Bd6 19.cd6 Kd7 20.Rb1 b5 21.a4! Rb8 (21...ba4 22.Rb7 Double attack) 22.ab5 ab5 23.Rb5 Rb5 (23...fg4 24.Rb8 Nb8 25.Bg4+-) 24.Bb5 g6 (24...Nh6 25.Bh6 gh6 26.gf5+-) 25.g5 h6 (25...Nh6 26.gh6 Rb8 27.c4 Rb5 28.cb5 Nd4 29.Bb2+-) 26.c4 h5 (26...Nge7 27.de7 Kc7 28.Bc6 Kc6 29.gh6+-) 27.d5 ed5 28.cd5 Rh7 29.dc6 (29.dc6 Kd8 30.Be3+-) 1–0. Erdem,Huseyin Varol – Karagullu,Mustafa, Kemer TUR, Men Ch, 2012. (=1.e4 c5 2.b4 d6)

3.d4?? cb4 4.Nf3+=.

3.d4?? cd4 4.Qd4+= Nc6 5.Bb5 Bd7 6.Bc6 Bc6 (6...bc6 7.Nf3+=) 7.Nc3= e5 8.Qd3 b6 (8...f5 9.f3=) 9.b5 Bb7 10.Nf3 Be7 11.Nd5 (11.0-0 Nf6=) 11...Bd5 12.Qd5 Rc8 13.Qd3 (13.c4 Qc7 14.Nd2 Nf6=) 13...Qc7+= 14.0-0 Qc2 15.Qa3 Qc7 16.Bg5 (16.Bb2 Qb7 17.Rac1 Rc1 18.Rc1 Nf6+=) 16...Bg5-/+ 17.Ng5 Qe7 18.Rac1 Rd8 (18...Rc5 19.Rc5 dc5 20.Nf3-/+) 19.Qg3 Nf6 20.Qh3 (20.Rc4!?+=) 20...0-0-/+ 21.Qh4 h6-+ 22.Nh3 Qe6 23.f4 ef4 24.Rf4 Qe5 25.Rff1 Rc8 26.Rce1 Rc2 27.Rd1?! Qe4 28.Nf4 d5 29.Qg3 Qc4 30.Qf3 Rc3 31.Rd3 Rd3 32.Nd3 Qb5 33.Nf4 Qc5 34.Kh1 b5 35.h4 Qc4 36.Re1 Qa2 37.g4 Qc4 38.g5 Qb4 39.Qf2 0–1. Al_Khulaifi,Ghada (1645) – Mendieta,Kathya (1760), 40th Women Olympiad, 2012. (=1.e4 c5 2.b4 d6)

3.Nf3 f5 4.ef5+/- Bf5 5.bc5 dc5 6.Nc3 Nf6 7.Bc4 Nbd7 8.d3 Nb6 9.Bb5 Bd7 10.Bf4 (10.a4 g6 11.Be3 a6 12.Bd7 Nbd7+/-) 10...Bb5+= 11.Nb5 Nbd5 12.Bd2 g6 13.Qe2 Bg7 14.Ng5 Bh6 15.0-0 a6 (15...Bg5 16.Bg5 0-0 17.Rae1+=) 16.Na3 (better is 16.Ne6!? Qb6 17.Bh6 ab5 18.Rfe1+-) 16...Bg5 17.Bg5 Qa5 (17...0-0!?+=) 18.Nc4+/- Qc7 19.Rfe1 0-0-0 20.Ne5 Rhe8 21.Nf7 Rd7 22.c4 (22.Qe6!? Kb8+-) 22...Nf4+/- 23.Bf4 Qf4+= 24.g3 Qc7 25.Qe6+/- Qc6 26.Qh3+- Rf8 27.Ne5 Qd6 28.Nd7 Nd7 29.Re3 Qf6 30.Rf1 Kd8 31.Qg2 Kc8 32.Qd5 Qg7? 33.Rb1 (33.Rb1 b5 34.Re6+-) 1–0. Garcia Alvarez,JB – Castano Garzon,E, Asturias–chT40 Primera A, 2000. (=1.e4 c5 2.b4 d6)

3.Nf3 g6 4.Bb2 f6 5.bc5 dc5 6.e5 Bg7 7.e6 (better 7.Bb5!? Bd7 8.Qe2+=) 7...Be6 8.Ng5 Qd5 (8...fg5?? 9.Bg7 Kf7 10.Bh8+-) 9.f4 (9.Ne6 Qe6 10.Be2 Qb6=+) 9...Bd7 (9...Bf5 10.Qe2-/+) 10.Bd3 Nc6 (10...Bf5 11.Bf5 Qf5 12.Qf3=+) 11.Be4 Qd6 12.0-0 (12.Qf3-/+) 12...Bh6 (better 12...Nd4 13.Bb7 Rb8-+) 13.Na3=+ Bg5 (13...Nd4 14.c3 Nf5-/+ (worse 14...Bg5 15.fg5 Bc6 16.cd4 Be4 17.Qe2=)) 14.fg5 Ne5 15.gf6 (15.Qe2 Ng4 16.g3 0-0-0+-) 15...Nf6 16.Be5 Qe5 17.Bb7 Rb8 18.Bf3 0-0 19.Qe2 (19.c3 Qe6=) 19...Qd4 (19...Qe2 20.Be2 e5 21.Rab1=) 20.Qe3 (20.Kh1 Qb4 21.Nc4 Bb5 22.Qe6 Kh8+=) 20...Rb4 21.Qd4 Rd4 (21...cd4 22.c3 Ra4 23.Nb1=+) 22.d3= Rb8 (22...g5 23.Nc4=) 23.Rfe1+= e6 24.Nc4 Kf7 (24...Nd5 25.a3+=) 25.Rab1 Rb1 26.Rb1 Ba4 27.Rb7 (27.Ne5 Ke8 28.Rb8 Rd8+-) 27...Kf8 (27...Ke8 28.c3 Rd7 29.Rb8 Ke7 30.Ne5+=) 28.Bd1 (28.Ne5!? Nd7 29.c3+-) 28...Rd7+= 29.Rb8 Ke7 30.Kf2 Rd8 31.Rb7 Rd7 32.Rb8 Rd8 33.Rd8 Kd8 34.Nb2 Bc6 35.Bf3 Bd7 (35...Kc7 36.a3=) 36.Ke3 Nd5 37.Bd5 ed5 38.d4 Bf5 (38...c4 39.Kf4 Bf5 40.c3=) 39.dc5+= Bc2 40.Kd4 Be4 41.g3 Kd7 42.Nd3 (42.g4 g5+=) 42...g5 1–0. Winants,Henri – Van Mol,Rene, Belgian championship, Candidates, 1951. (=1.e4 c5 2.Nf3 d6 3.b4 g6)

3.f4 Nc6 4.b5= Nd4 5.c3 Ne6 6.d4 cd4 7.cd4 Bd7 8.Nf3 Qa5 9.Bd2 Qb6 10.Nc3 Nd4= 11.Nd5 Nf3 12.Qf3 Qd8 13.b6 ab6 14.Be3 Ra3 15.Qf2 Re3 16.Qe3 e6 17.Nb6 Bc6 18.Be2 Nf6= 19.Bf3 Be7 20.0-0 0-0 21.Kh1 h6 22.Rfd1 Qc7 23.Rac1+/- Nd7 24.Nd5! Qd8 25.Ne7 Qe7 26.Qd4 Nf6 27.Qd6 Qd6 28.Rd6 Be4 29.Be4 Ne4 30.Rb6 Nf2 31.Kg1 Nd3 32.Rc4 Ra8 33.a4 Ra7? 34.Rb3 (34.Rb3 b5 35.Rc8 Kh7 36.Rd3 Ra4 37.g3+-) 1–0. Nanu,Ciprian (2170) – Tomescu,L, Timisoara op (3), 1995.

3.a3 b6

4.Bb2 Bb7 5.Nc3 Nf6 6.Bd3 e5 (6...Na6 7.b5 Nc7 8.Nf3=) 7.f4 (7.Nf3!?+=) 7...Nc6= 8.Nf3 (8.bc5 bc5 9.Rb1 Rb8+=) 8...Be7 (8...cb4 9.ab4 ef4 10.Bb5+=) 9.0-0 (9.bc5 0-0 10.cd6 Qd6+=) 9...0-0 (9...ef4 10.Nd5=) 10.Nd5 (10.bc5 ef4 11.Nd5 dc5 12.Nf4 c4 13.Bc4 Ne4=) 10...cb4= 11.Nh4 (11.fe5 de5 12.Nb4 Nb4 13.ab4 Ne4=) 11...Bc8 (11...g6 12.Ne7 (12.ab4? Nd5 13.ed5 Nb4-+) 12...Qe7 13.Qe1=+) 12.fe5 (12.Nb4 Nb4 13.ab4 d5=+) 12...Ne5 (12...de5 13.Nb4 Bc5 14.Kh1 Bb4 15.ab4 Nb4 16.Qf3=) 13.Nf5 (13.Ne7!? Qe7 14.ab4=) 13...Bf5=+ 14.Rf5 Nd5 (worse 14...Nd3 15.Bf6 (15.cd3?! Nd5 16.Rd5 ba3 17.Ra3 Bf6=) 15...Bf6 16.Nf6 gf6 17.cd3+=) 15.ed5 Nd3 16.cd3 ba3 17.Ra3 Qd7 18.Qg4 f6 19.Qe4 (19.Ra4 Qb5 20.Bc3 Qd3-/+) 19...Rac8 (19...Rfe8 20.Rh5 g6 21.Rh3-/+) 20.Bc3 (20.Qe6 Qe6 21.de6 a5=+) 20...Rc7 (20...Rfe8 21.Ra1=+) 21.Ra1=+ g6 22.Rf3 (22.Rff1 f5 23.Qb4 Bd8-/+) 22...f5-/+ 23.Qe2 (23.Qb4 Rc5-/+) 23...Bf6 24.Re3 (24.Qe6 Kg7 25.Bf6 Rf6 26.Qd7 Rd7-/+) 24...Bc3 (24...Qb5 25.Bf6 Rf6 26.Re7 Qc5 27.Kf1-+) 25.dc3-/+ Rf7 (better 25...f4!? 26.Re4 Rc3-/+) 26.c4 (26.Re8 Kg7 27.c4 Rc8 28.Qb2 Kh6=) 26...Re7=+ 27.Re1 (27.Re6 Re6 28.de6 Qg7=+) 27...Re3 28.Qe3 Kf8 (better 28...Qd8!?=+) 29.Qg5+= Kg7 30.Re6 Qf7 (30...Qa4 31.Qf6 Kh6 32.Qf8 Kh5 33.Qd6 Qa1 34.Kf2 Qd4 35.Re3+=) 31.Qf4 (31.Rd6 Qe7 32.Qg3 f4 33.Qf4 Qe1 34.Qf1 Qe3 35.Kh1 Rf7 36.Qa1 Kh6=) 31...Rd7 32.Rd6 Rd6 33.Qd6 Qf6 34.Qc7 (34.Qf4 Qd8=) 34...Kh6 35.d6 (35.Kf1!?+=) 35...Qd4= 36.Kf1 Qd3 37.Ke1 Qe3 38.Kf1 Qd3 39.Ke1 Qe3 40.Kf1 Qf4 41.Ke1 Qh2 42.Qe7 Qg1 (42...Qg2?? 43.Qh4 Kg7 44.d7 Qg1 45.Ke2+-) 43.Kd2 Qd4 44.Ke1 Qg1 (44...Qc4 45.d7 Qc1 46.Kf2 Qd2 47.Kf3 Qd1 48.Kg3 Qg4 49.Kf2 Qf4 50.Ke2 Qg4 51.Ke3 Qg3 52.Kd4 Qf4 53.Kd5 Qd2 54.Ke6 Qe2 55.Kf7 Qe7 56.Ke7+-) ½–½. Skrjabin,Igor (2080) – Semenenko,Sergey (2195), Vladimir Zak Memorial, 2007. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bb2 Bb7 5.d3 Nf6 6.Nd2 Nbd7 (6...e6 7.bc5 dc5 8.Ngf3=) 7.g3 (7.bc5 Nc5 8.Bf6 ef6+=) 7...Qc7 (7...d5 8.bc5 de4 9.de4 Ne4 10.Ne4 Be4 11.f3=+) 8.Bg2 e6 (8...e5 9.c4=+) 9.f4 (9.bc5 Qc5 10.Ngf3 Be7=) 9...Be7 10.Ne2 (10.g4 0-0=+) 10...0-0=+ 11.h3 Rac8 (11...d5 12.e5 Ne8 13.bc5 Nc5 14.Bd4=+) 12.c4 a6 13.b5 (13.Nc3 cb4 14.ab4 d5=) 13...d5 (13...ab5 14.cb5 d5 15.0-0=+) 14.e5 (14.ba6 Ba6 15.0-0 dc4 16.dc4 Bb7=) 14...Ne8 (14...dc4 15.ef6 Bf6 16.Bf6 Bg2-/+) 15.a4 (better 15.ba6 Ba6 16.cd5 ed5 17.Bd5 Bd3 18.Nc4=) 15...dc4-/+ 16.0-0 (better 16.Nf3!? Rd8 17.Ra3-/+) 16...cd3-+ 17.Nc3 c4 18.Bb7 (18.ba6 Bg2 19.Kg2 Qa7-+) 18...Qb7 19.Qf3 Qf3 20.Rf3 ab5 (20...f6 21.ef6 Bf6 22.ba6-+) 21.ab5 Nc7 (better 21...f6 22.Ra4 fe5 23.Rc4 Bc5 24.Kg2 ef4 25.gf4 Nd6-+) 22.Rff1? (better 22.Nc4!? Nb5! 23.Nb5 Rc4 24.Rd3-/+) 22...f6 (22...Bb4 23.Nde4-+) 23.Ra7 (23.Nc4 Nb5! 24.Nb6 Bc5 25.Kh1 Nb6 26.Nb5 Nc4-+) 23...Bc5 (23...Rfd8!? 24.Ra4 fe5 25.Nc4 Bc5 26.Kg2 ef4 27.gf4-+) 24.Kg2 (24.Kh1 fe5 25.Nc4 ef4 26.Rf4 Rfd8-+) 24...Bd4 25.Nc4 Nb5?? (better 25...Ne5 26.fe5 Bc3 27.Nb6 Bb2 28.Nc8 Rc8 29.ef6 Bf6-+) 26.Nb5+- Rc4 27.Bd4 Rc2 (27...Rd8+-) 28.Rf2 (better 28.Kg1!? Nc5 29.Rd1+-) 28...d2+= 29.Rd2?? (29.Ra1 fe5 A) 30.fe5?? Rf2 31.Bf2 Rc1 (31...Ne5?! 32.Nd6 Kf8 33.Rd1=) 32.Ra8 Kf7 33.Nd6 Kg6-+; B) worse 30.Be5 Ne5 31.Nd4 Rc1 32.Rd2 Ra1-+; C) 30.Be3+=) 29...Rd2-+ 30.Kf3 (30.Kf1 fe5 31.Ke1 A) 31...ed4?! 32.Kd2 Rd8 33.Rc7-+ (33.Nd4? Nb8-+); B) 31...Rh2 32.fe5 Nc5 33.Bc5 bc5-+) 30...Rd8 (30...fe5!? 31.Rd7 ed4 32.Rd4 Rd4 33.Nd4-+) 31.Be3 (31.Ke3 Rh2 32.h4 h5-+) 31...Rd3 (31...Rh2 32.ef6 gf6 33.Nd6-+) 32.Nd4 (32.Ke2 Rb3 33.Nd4 Rb2 34.Kf3 Nc5-+) 32...Nc5 (32...Ne5 33.Ke2 R3d4 34.Bd4-+) 33.Nb5 (33.Nc6 R8d7-+) 33...fe5 34.fe5 Rf8 (34...Rb3 35.Nd6 Rf8 36.Ke2 Rb2 37.Bd2-+) 35.Ke2 Rb3 36.Nd6 (36.Bc5 bc5 (36...Rb5?! 37.Bf8 Re5 38.Kf3 Kf8 39.Rb7-+) 37.Nd6 Rg3-+) 36...Rb2 37.Bd2 Nb3 38.Nc4 Rb1 (better 38...Rc2 39.Kd3 Rc4 40.Kc4 Nd2 41.Kb5-+) 39.Be1?? (better 39.Be3-+) 39...b5 (39...Nd4 40.Kd3 Nb5 41.Rb7 Re1 42.Rb6 Rd8 43.Kc2 Nd4 44.Kb2-+) 40.Nd2 (40.Na5 Nd4 41.Kd3 Rd1 42.Bd2 Nf3-+) 40...Nd2 (better 40...Nd4 41.Ke3 Re1 42.Kd4 Rd8 43.Kc3 Re3 44.Kc2 Re2-+) 41.Bd2 Rb2 (41...Rb2 42.Rd7 Rf5-+) 0–1. jaddwarrior (1790) – kerns (2320), ChessWorld.net, 2014. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bb2 e5 5.f4 ef4= 6.Nf3 Nf6 7.Nc3 (7.Bb5 Bd7 8.Bf6 Qf6=) 7...Bb7 (7...Be7 8.e5 de5 9.Ne5=+) 8.Bc4 Nh5? (better 8...Nc6!?=) 9.0-0+/- Be7 10.Nd5 (10.bc5 bc5 11.Nh4 Nf6+/-) 10...0-0+/- 11.d3 (11.bc5 bc5 12.Nd4 Nf6+=) 11...Nd7 12.Qd2 (12.Nd4 Bf6 13.Nf6 Ndf6+=) 12...Rc8 (12...Bd5!? 13.Bd5 Rc8=+) 13.Nf4+= Bg5 (13...Nf4 14.Qf4 Bf6 15.Bf6 Qf6 16.Qg4+=) 14.Ng5+/- Qg5 15.Qc3 (15.Rad1 Nf4 16.Rf4 Ne5+/-) 15...Ne5 (better 15...Nf4 16.Rf4 Ne5=) 16.Bd5?? (better 16.Nh5 Qh5 17.b5+=) 16...Nf4-+ 17.Rf4 Bd5 (better 17...cb4 18.Qe1 Rc2 19.Qg3 Qg3 20.hg3 Bd5 21.Be5 de5 22.Rf2-+) 18.Rf5 Qg6 (18...Qe3 19.Rf2 Be6 20.Bc1-+) 19.Qd2 (19.Re5 cb4 (19...de5?! 20.ed5 cb4 21.Qb3-+) 20.Qd2 de5 21.ed5 b3 22.cb3 f6-+) 19...Be6 20.Rg5 (20.Be5 de5 (worse 20...Bf5 21.ef5 Qf5 22.Bb2-+) 21.Re5 Qf6-+) 20...Qf6 21.Rf1 (21.Be5 de5 22.Rg3 Qe7-+) 21...Qh6 (21...Nf3! 22.Rf3 Qb2 23.b5-+) 22.Rf2 Ng4 (better 22...f6 23.Rg3 Qd2 24.Rd2 h5-+) 23.Rg7= Qg7 24.Bg7 Kg7 25.Rf3 (better 25.h3 Nf2 26.Qg5 Kh8 27.Qf6 Kg8 28.Qg5 Kh8 29.Qf6 Kg8 30.Qg5 Kh8=) 25...f5?? (25...h6 26.Qf4 Ne5 27.Rg3 Kh7 28.bc5 bc5 29.Qf6=+) 26.h3 (better 26.ef5 Rf5 27.Rf5 Bf5 28.Qg5 Bg6 29.Qg4+-) 26...Ne5+= 27.Qg5 Kh8 28.Rf2 (28.Rf1 Rf7 29.ef5 Rcf8=) 28...Rf7 29.ef5 Rg8? (29...Rcf8 30.g4+=) 30.Qh5 (better 30.Qh6 Bf5 31.Qd6+-) 30...Bd5+/- 31.Kf1 (31.Qh6 Rd8+/-) 31...Rfg7 (better 31...Rf6!?=) 32.g4+/- cb4 (32...Rf7 33.Qh6 Rd8 34.Re2+/-) 33.ab4 a5 (33...Rc7!? 34.b5 Rgc8 35.Qh6+-) 34.ba5 (34.Qh6 Rd8 (34...ab4?? 35.Qd6 Ng4 36.hg4+-) 35.Qf6 Rdd7 36.ba5 ba5+-) 34…ba5 0-1. gregorgysi (2560) - bolu (2355), net-chess.com, 2021. (=1.e4 c5 2.a3 d6 3.b4)

4.Bb2 e6 5.Nf3 Bb7 6.Bb5 Nc6 7.d3 (7.Nc3 a6 8.Be2 Nf6=) 7...Nf6= 8.0-0 Be7 9.c3 (9.e5!? de5 10.Ne5=) 9...0-0 10.Ba4 Qc7 11.Nbd2 Rac8 12.Rc1 d5 13.b5 Ne5 14.Ne5 Qe5 15.d4 (15.f4!? Qc7 16.e5=) 15...cd4 16.cd4 Qf4 17.g3 Qb8 (17...Qh6 18.e5 Ng4 19.Nf3=+) 18.e5= Ne4 19.f3 (19.Qe2 Qa8=) 19...Nd2 (19...Rc1 20.Qc1 Rc8=+) 20.Qd2= f6 21.f4 fe5 22.fe5 (worse 22.de5 Rc4 23.Bc2 Qc7-/+) 22...h6 (22...Rc1!? 23.Qc1 Rf1 24.Qf1 Qc7=) 23.Qd3 (23.Rf8 Rf8 24.Bc2 Qe8+-) 23...Rf1 24.Rf1 (24.Kf1?! Rc1 25.Bc1 Qc7+=; 24.Qf1?! Rc1 25.Qc1 Qc8=) 24...Rf8 25.Bc2 (25.Rc1 Rf5+-) 25...Rf1+= 26.Kf1 Qf8 27.Kg2 Qf7 28.Qh7 Kf8 29.Qd3 h5?? (better 29...Kg8=) 30.Qh7+- h4 31.Bc1 hg3 32.hg3 Bc8?? (better 32...Qg8 33.Qh5 Bd8+-) 33.Bg6 Qg8 34.Qh5 Bd8 (34...Bf6 35.Qf3 Ke7 36.Qf4+-) 35.a4 (35.Bg5 Bf6 36.ef6 e5 37.fg7 Qg7 38.Qf3 Kg8 39.Qd5 Be6 40.Qe6 Kh8 41.Qe8 Qf8 42.Qf8) 35...Ke7 36.Ba3 Kd7 37.Bf7 g6 38.Bg6 (better 38.Qf3 Qh8 39.Qg4+-) 38...Qg7?? (better 38...Kc7+-) 39.Bd6 (39.Be8 Kc7 40.Bd6 Kb7 41.Bc6) 39...Be7+- 40.Be7 Qe7 41.Qh7 a5?? (better 41...Qh7 42.Bh7 Ke7+-) 42.Kf3 Qh7 43.Bh7 Ke7 44.Bg6 Bd7 (44...Bb7 45.Kg4 Kf8 46.Kh5+-) 45.Kf4 Kf8 46.Kg5 Kg7 47.g4 Bc8 48.Be8 Kf8 49.Kg6 (better 49.Kh6 Ke8 50.g5 Kf8+-) 49...Ke8 50.Kg7 (better 50.g5 Ke7 51.Kh7+-) 50...Ke7 51.g5 Bd7 52.g6 Bb5 53.ab5 a4 54.Kh8 a3 55.g7 a2 56.g8Q a1Q 57.Qg7 Kd8 58.Qf8 Kc7 59.Qd6 Kb7 60.Qc6 Ka7 61.Qc7 Ka8 62.Qb6?? (62.Qc8 Ka7 63.Qd7 Kb8 64.Qe6 Qh1 65.Kg7 Qg1 66.Kf7 Qd4 67.Qe8 Kc7 68.Qe7 Kb8 69.e6 Qf4 70.Qf6 Qc7 71.e7+-) 62...Qh1= 63.Kg7 Qg2 64.Kf7 Qf3 65.Ke7 Qa3?? (65...Qf7 66.Kf7=) 66.Ke6 (better 66.Qc5 Qg3 67.Ke6 Qg6 68.Kd7 Qg7 69.Qe7 Qg4 70.e6+-) 66...Qh3 67.Kd5 Qf3 68.Ke6 Qg4 69.Kf7 Qf3?? (69...Qg7 70.Kg7=) 70.Ke7 (70.Qf6 Qb7 71.Qe7 Qe4 72.Qa3 Kb7 73.Qa6 Kc7 74.Qc6 Qc6 75.bc6 Kc6+-) 70...Qf4?? (better 70...Qf7! 71.Kf7=) 71.Qc6+- Kb8 72.b6 (72.e6 Qg5 73.Kd7 Qg4+-) 72...Qh4?? (better 72...Qf7! 73.Kf7+-) 73.Qf6+- Qh7 74.Kd6 Kb7 75.Qe7 (75.Qe7 Qe7 76.Ke7 Ka6 77.d5 Ka5 78.b7 Kb6 79.d6 Ka7 80.d7 Kb8 81.d8Q Kb7 82.Kd7 Ka6 83.Kc6 Ka7 84.e6 Ka6 85.Qb6) 1–0. Caporale,Giuseppe Guido (1760) – Da Silva,Laercio Lopes, Championship Brasileiro de Seniors e Ve, 2015. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bb2 Nf6 5.Bc4 e6 (5...Ne4?? 6.Bd5 Bd7 7.Ba8+-) 6.Qf3 (better is 6.Nc3 d5 7.ed5 ed5 8.Bb5 Bd7 9.Nf3+=) 6...Be7?? (better is 6...Nc6+=) 7.e5+- de5 (7...Ne4 8.Bb5 Bd7 9.Bd7 Nd7 10.Qe4 de5+-) 8.Qa8 Nd5 (8...Qc7 9.Nc3 Bb7 10.Qa7 Nc6+-) 9.Bd5 (9.Qb8!? cb4 10.Qa7 0-0+-) 9...ed5 (9...Qd5 10.Qb8 Qg2 11.Qc8 Bd8 12.Nc3+-) 10.Qb8 Bd6 (10...0-0 11.Qa7 Qd6 12.Ne2+-) 11.Qa7 b5 (11...d4 12.d3 0-0 13.Nd2+-) 12.bc5 Bc7 1–0. Kedziera,Izydor – Zawalich,Oskar, Noworoczny Turniej Szachowy Poland, 2012. (=1.e4 c5 2.a3 d6 3.b4)

4.b5 a6 5.Nc3 g6 6.Nf3 Bg7 7.Rb1 (7.ba6 Ba6 8.Ba6 Na6=) 7...Nf6 8.Bc4 0-0 9.d3 Bb7 10.ba6 Ba6 11.Ba6 Ra6 12.Nb5 Ng4 13.h3 Ne5 14.Ne5 Be5 15.f4 Bg7 16.0-0 White plans f5 16...Qd7 17.Be3 e6 (17...Nc6!?=) 18.f5+= ef5 19.ef5 Nc6 20.f6 Bh8 21.c4 (21.Qg4 Rd8+=) 21...Rc8 (21...Re8 22.Bg5=) 22.Qf3 Ne5 23.Qd5 Qd8?? (better is 23...Qc6!?+=) 24.Nd6 (better is 24.Bf4!? Bf6 25.Nd6 Rc7 26.Be5 Be5 27.Qe5 Re7+-) 24...Rc6 25.Qe5?? (better is 25.Nf7 Qd5 26.cd5 Rf6 27.Nh8 (27.Ne5?! Rf1 28.Kf1 Be5+=) 27...Rf1 28.Rf1 Kh8 29.d4+-) 25...Rd6= 26.Bg5 Re6?? (better is 26...h6 27.Bh4 Ra3=) 27.Qe6!!+- Qd4 (27...fe6 28.f7 Double attack (28.f7 Passed pawn)) 28.Qe3 Qe3 29.Be3 Ra3 (29...h6+-) 30.Rb6 Ra8 31.Rfb1 (31.Rfb1 Rd8 32.Rb8 Bf6 33.Rd8 Bd8 34.Rb8+-) 1–0. Salim,Djaffer – Mokhebi,Kamel, 3rd President ALG Open, 2015. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bb5 Bd7 5.Bd7 Nd7 6.Bb2 Ngf6 7.d3 (7.Nc3 a6+=) 7...g6 (7...e5 8.Nf3=) 8.f4 Bg7 9.Nd2 0-0 10.Ngf3 e5 (10...d5!?=) 11.fe5 Ng4 12.Nc4 Nge5 13.Nce5 (13.0-0 b5 14.Nce5 Ne5+=) 13...Ne5= 14.Ne5 Be5 15.Be5 de5 16.bc5 bc5 17.0-0 Qd4 18.Kh1 c4 19.Rb1 cd3 20.Qd3 Qd3 21.cd3 Rfd8 (21...Rab8 22.g4=) 22.Rb7= Rd3 23.h4 (23.g4 Rf8 24.Ra7 Rd4=) 23...Rf8 24.Ra7 f5 25.ef5 gf5 26.Rf3 Rd1 (26...Rd4 27.g3=) 27.Kh2 f4 28.g3 Rd2 29.Kh3 Rd4 30.Re7 Re4 (30...Rd5 31.h5+=) 31.h5 (31.gf4 Rff4 32.Rg3 Kf8 33.Rh7 Rd4+-) 31...Rf7 (31...h6 32.Re6+=) 32.Rf7+- Kf7 33.gf4 ef4 (33...Kf6!? 34.Kg3 h6+-) 34.Kg4+- Ke6 35.Rf4 Re3 36.Ra4 Kf6 37.Ra6 Ke5 (37...Kg7 38.a4+-) 38.Kg5 Rg3?! (38...Rf3 39.Ra5 Ke4 40.Ra4 Ke3 41.Ra7+-) 39.Kh6 Rh3 40.a4 Kf4 41.Rb6 (41.Kh7?! Rh5 42.Kg6 Rd5+-) 41...Ra3 42.Rb4 Ke5 (42...Kf5 43.Kh7 Rc3 44.Rb5 Kf6 45.a5+-) 43.Kh7 Rg3 (43...Kf6 44.h6+-) 44.a5 Rh3 (44...Rd3 45.Rb7+-) 45.Rb5 Kf6 46.Rb6 Kg5 47.Rb5 Kf6 48.h6 Rc3 49.Rb6 Kg5 (49...Kf5 50.Rb7 Rc6 51.Rb5 Ke4 52.Rb6+-) 50.a6 (50.Rg6!? Kf5 51.a6 Ke5+-) 50...Rc7 51.Kg8 Rc8 52.Kf7 1–0. Paldus,P (2015) – Pribylova,Sofie (1885), 7th Pilsen Open, 2015. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bb5 Nd7 5.Bb2 Bb7 6.d3 a6 7.Bd7 Qd7 8.Nd2 d5 9.Ngf3 Qg4 10.ed5 cb4 (worse 10...Qg2 11.Rg1 Qh3 12.bc5 Bd5 13.cb6 Qe6 14.Qe2 Qb6 15.Bg7 Bg7 16.Rg7+-) 11.ab4 Nf6 (11...Qb4!? 12.Bd4 Bd5+=) 12.c4 e6 (12...Qg2 13.Rg1 Qh3 14.Qa4 b5 15.Qa5+-) 13.Qa4 b5 14.cb5 Qb4 15.ba6 Qa4 16.Ra4 Ra6 17.Ra6 Ba6 18.de6 Bd3 19.ef7 Kd8 (19...Ke7 20.Kd1 Bg6 21.Re1 Kf7 22.Ne5 Kg8 23.Ng6 hg6 24.h3+-) 20.Ne5 Bb5 21.Bc3 Bc5 22.Nb3 (22.f4 Rf8+-) 22...Bf2? (better 22...Bd6+-) 23.Kf2 Ne4 24.Ke3 (24.Kf3 Nc3 25.Rc1 Na4+-) 24...Nc3 25.Nd4 Nd5 26.Ke4 Nf6 27.Kf5 Bd7 28.Nd7 Nd7 (28...Kd7 29.Ra1 Ke7 30.Ra7 Nd7 31.Nf3+-) 29.Ke6 Nc5 30.Kd5 Nd3 (30...Ke7 31.Nc6 Kf7 32.Rf1 Kg6 33.Ne5 Kh5 34.Kc5 Re8+-) 31.Kd6 Nf4 (31...Kc8 32.Nc6 Ne5 33.Ne5+-) 32.Re1 (32.Nc6 Kc8 33.Rb1 Rd8 34.Nd8 Nd5 35.f8Q Nb4 36.Rb4 g5 37.Ne6) 32...Ng6 33.Nc6 (33.Rc1 Re8 34.Nc6 Kc8 35.fe8Q Kb7 36.Rb1 Ka6 37.Qe2) 33...Kc8+- 34.Re8 (34.Re8 Kb7 35.Rh8 Ka6 36.Rb8 Nf8 37.Rf8 Kb5 38.Kd5 Ka4 39.Rb8 Ka3 40.f8Q Ka2 41.Qf2 Ka3 42.Qa7) 1–0. Barahona Torrijos,A (2025) – Tolosana Esteban,E, San Fernando op, 2005. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Nc3 Bb7 5.bc5 bc5 6.Rb1 Qc8 7.Nf3 Nc6 8.Bb5 a6 9.Ba4 e6 10.d4 cd4 11.Nd4 Nge7 12.Nd5! Rb8?? (12...ed5 13.Bc6 Double attack; 12...Nd5 13.Bc6 Double attack) 13.Ne7+- Ke7 (13...Be7 14.Nc6 Bc6 15.Bc6 Kf8 16.Rb8 Qb8+-) 14.Rb7! Rb7 (14...Rb7 15.Bc6 Remove defender; 14...Qb7 15.Nc6 Double attack (15.Bc6 Remove defender)) 15.Nc6 (15.Bc6?! Rb6 16.Ba4 Qc3 17.Qd2 Qd2 18.Kd2 Kf6+-) 15...Kf6 (15...Qc6 16.Bc6 Rc7+-) 16.Qf3 Kg6 17.Qg4 (17.Qg4 Kf6 18.Qg5; 17.Qg3 Kh5 18.Qg5) 1–0. Bach,Mat (2250) – Ottesen,Soren Rud (1830), Odense DEN, HC Andersen Open, 2013. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Nc3 e6 5.Nf3 Qc7 6.Bb2 a6 7.Be2 Nc6 8.d4 (8.b5 Nd4+=) 8...Be7 (better 8...cb4!? 9.ab4 Nb4=+) 9.d5+= Nd4 (9...cb4 10.Nb5 (worse 10.dc6 bc3 11.Bc3 Nf6-/+) 10...ab5 11.Bb5+-) 10.Nd4+- cd4 11.Qd4 Bf6 12.Qd2 e5 (12...Ne7 13.b5+-) 13.Nd1 (13.b5 Ne7+-) 13...Ne7+- 14.c4 0-0 15.Rc1 h6 (15...Ng6 16.0-0+-) 16.h4 (16.c5 Bg5 17.Ne3 f5+-) 16...Ng6 17.g3 Bd7 18.Ne3 Qa7 (18...Rfe8 19.0-0+-) 19.Nf5 (19.h5 Nh8+-) 19...Bf5 20.ef5 Nh8 21.g4 Qe7 22.Qe3 Rab8 23.Qg3 a5 (23...Rfc8 24.Rc2 e4 25.Bf6 Qf6 26.g5 Qa1 27.Bd1+-) 24.Bc3 ab4 25.Bb4 Ra8 (25...Rfe8 26.Bd2 e4 27.g5+-) 26.Bd2 (26.Qh2 Qd7 27.g5 Be7+-) 26...g5 (26...e4 27.g5 Be5 28.Qg2+-) 27.Qe3 (27.fg6 fg6 28.Bh6 Bg7+-) 27...Rab8 (27...Rfb8 28.Rb1+-) 28.Rb1 Qa7 (28...Qd8 29.Qb3 Kg7 30.hg5 Bg5 31.Bb4+-) 29.hg5 Bg5 30.Qc3 (better 30.Qh3!? Bd2 31.Kd2 f6 32.Qh6 Qg7+-) 30...f6 31.Rb4 (31.Qh3!? Bd2 32.Kd2 Qa5 33.Rb4 Nf7+-) 31...Nf7 32.Bd1 Rfc8 33.Ba4 Rc5 34.Bb5 Kg7 35.Ra4 Qc7 36.Qd3 (36.Qb4 Bd2 37.Qd2 Ng5+-) 36...Rc8 37.0-0 (better 37.Rb4+-) 37...Re8?? (better 37...e4 38.Qe2 Bd2 39.Qd2 Ne5+=) 38.Be8+- Bd2 39.Bf7 Ba5 (39...Bf4 40.Be6 Ra5 41.Ra5 ba5 42.Qh3+-) 40.Be8 Qe7 41.Bc6 Kf7 42.Qh3 Qf8 43.Qh5 Ke7 44.Kg2 (better 44.Rb1 Qf7 45.Qh6 Qg8+-) 44...e4 (44...Rc6 45.dc6 Qa8+-) 45.Rh1 (better 45.Re1 Rc6 46.dc6+-) 45...Qg7 (45...Kd8 46.Qh6 Qh6 47.Rh6+-) 46.Rh4 (46.Qe8) 46...Qh8 (46...Qg8 47.Qh6 Rc6 48.Qh7 Qh7 49.Rh7 Kf8 50.dc6 Kg8 51.Rd7 d5 52.c7 Bb4 53.ab4 dc4 54.c8Q) 47.Qg6 Kf8 48.Rh6 Qg7 (48...Qh6 49.Qh6 Kf7 50.Qg6 Kf8 51.Qf6 Kg8 52.Qg6 Kf8 53.f6 Rc6 54.Qg7 Ke8 55.Qe7) 49.Qe8 1–0. Kuge,Tom (1630) – Liao,Shih_Chu (1660), FICGS, 2013. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Nc3 e6 5.Nf3 Nf6 6.Bb5 Bd7 7.Qe2 Nc6 8.0-0 Be7 9.Bb2 0-0 10.Bc6 (10.bc5 bc5 11.Bc4 Rb8=) 10...Bc6 11.d4 Qc7 12.Rfd1 cd4 13.Nd4 Bb7 14.f3 Rac8 15.Ncb5 Qb8 16.Nb3 (16.Rac1 Rfd8=) 16...Nd7 (16...d5 17.ed5 Bd5 18.Be5=) 17.c4 a6 18.N5d4 Bf6 19.Rac1 Rc7 20.g4 (20.a4 Rfc8=) 20...Rfc8 21.f4 h6 22.f5 e5 (22...Ne5 23.Nd2=+) 23.Nf3 Be7 24.h4 (24.Nbd2 Qa7=+) 24...b5 25.cb5 Qa7 26.Kg2 ab5 27.Rc7 Rc7 28.Rc1 (28.g5 Qa4 29.Rd3 Rc4-/+) 28...Rc1 29.Bc1 Qa8 30.Nbd2 Nf6 31.g5 hg5 32.Ng5 Qc8 33.Qd1 (33.Qf1 d5 34.Ndf3 Qc2 35.Kg1 Ne4 36.Ne4 Qe4-+ (36...de4?! 37.Ne5 e3 38.Be3-+)) 33...Qf5 34.Qf3 Qc8 35.Qd1 d5 36.Bb2 (36.ed5 Nd5 37.Kh2 Bg5 38.hg5-+) 36...de4 37.Kg3 (37.Kh2-+) 37...e3 38.Nf1 (38.Nb3-+) 38...Qc4 39.Ne3 Qf4 (39...Qf4 40.Kh3 Qe3 41.Qf3 Bf3 42.Bc1 Qe2 43.Nf3 Qf3 44.Kh2 Ng4 45.Kg1 Qf2 46.Kh1 Qf1) 0–1. Kuge,Tom (1665) – Ropokis,Dimitrios, FICGS, 2016. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Bc4 e6 5.Nc3 (5.bc5 bc5 6.Nc3 Nf6+=) 5...Nf6 6.Nf3 (6.bc5 dc5 7.Nf3 a6=) 6...d5 7.ed5 ed5 8.Bb3 (8.Bb5 Bd7 9.0-0 Be7=) 8...a6 (8...Qe7 9.Qe2 Qe2 10.Ke2=) 9.0-0 (9.Qe2 Be6 10.Ng5 Qd7 11.Ne6 fe6=) 9...c4 (9...cb4!? 10.Re1 Be6 11.ab4 Bb4+=) 10.Ba2+= Be7 11.d3 b5 12.Nd4 (12.dc4 bc4 13.Bg5 Be6+=) 12...0-0= 13.a4 (better 13.Be3!?=) 13...Bb4-/+ 14.Bb2 (14.Nce2-/+) 14...Bd7 (14...ba4 15.Na4 Bg4 16.Nf3-/+) 15.Qf3 (15.ab5 Bc3 16.Bc3 ab5 17.Qf3=+) 15...ba4?? (better 15...Bg4 16.Qf4 Bd6-+) 16.Nd5+= Nd5 17.Qd5 Ra7 (17...c3!? 18.Ba3 Ba3 19.Qa8 Qf6+=) 18.Qc4 (18.Bc4 Bb5 19.Nf5 Qd5 20.Bd5 Rd8+-) 18...Qe7 (18...Rb7 19.Qd5 Bc8 20.Bc4+=) 19.c3 (better 19.Nf5 Bf5 20.Qd4+-) 19...Rc8?? (better 19...Bc5+=) 20.Qb4+- Qg5 (20...Qb4 21.cb4 Rb7 22.Ba3+-) 21.Nf3 (better 21.Bc1 Qg6+-) 21...Qg6 (21...Qb5 22.Ba3 Qb4 23.Bb4+-) 22.Ne5 Qf6 23.Nf7 Nc6 (23...Be6 24.Nd6 Rf8 25.Ne4+-) 24.Ne5 (better 24.Qe4 Bf5 25.Nd6 Kh8 26.Qf5 Qf5 27.Nf5 Ne5+-) 24...Be6 (24...Kh8 25.Nc6 Bc6+-) 25.Nc6 Rac7 26.Be6 Qe6 27.Nd4 Qg6 28.Rfd1 (28.Rfe1 a3 29.Qb3 Kh8 30.Qa3 Rb7+-) 28...Rc5 (28...Rf7 29.Qa4 Rb7 30.Qa2 Kh8 31.Bc1 Rc3 32.Qa6 Qa6 33.Ra6+-) 29.Ra4 (29.Qa4 a5+-) 29...h5 (29...Re5 30.Raa1+-) 30.c4 (30.Qb7 Re8 31.Qa6 Qf7+-) 30...h4 31.Nf3 (31.Qb7 Re8+-) 31...Rh5 (31...h3 32.g3+-) 32.Qb7 Rf8 (32...Rc6 33.Qa8 Kh7 34.Ne5 Re5 35.Be5+-) 33.h3 (33.Ra6 Qf7 34.Qf7 Rf7+- (34...Kf7?? 35.Ra7 Kg6 36.Rg7 Kh6 37.Re1+-)) 33...Rf4 34.Ra6 Qh7 35.Ra8 Rf8 36.Rf8 Kf8 37.Ba3 (37.Ra1 Ra5 38.Ra5 Qd3 39.Ra8 Qd8 40.Rd8) 37...Kg8 (37...Rc5 38.Ng5 Qf5 39.Bc5 Kg8 40.Qb8 Qc8 41.Qc8) 38.Qc8 Kf7 39.Qd7 Kg6 (39...Kf6 40.Qe7 Kg6 41.Qe6) 40.Qe6 1–0. Quintero Cortes,Santiago – Becerra Fonseca,Camila, 2nd Torneo IRT Ajedrez Clasico Club El, 2016. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.d3 Nc6 5.c3=.

4.d3 Nf6 5.c3 Bb7 6.f3 (6.Nf3 e6=) 6...Nbd7 (6...e5 7.d4=) 7.g3 (7.bc5 dc5 8.Be2 e6=+) 7...g6 (7...e5 8.bc5 dc5 9.Ne2=+) 8.Bg2 Bg7 9.Nh3 Qc7 10.Ra2 (10.f4 c4=+) 10...0-0=+ 11.Nf2 a5 12.Rb2 (12.bc5 bc5 13.f4 Rab8=+) 12...Rfc8 (12...cb4 13.ab4 a4 14.f4=+) 13.f4 (13.bc5 Nc5 14.d4 Ncd7=) 13...e5 (13...cb4 14.ab4 a4 15.0-0=+) 14.c4 (14.bc5 bc5 15.0-0 c4 16.fe5 de5+=) 14...Re8 (14...cb4 15.fe5 de5 16.ab4=+) 15.Bf3 (15.ba5 Ra5 16.fe5 de5=) 15...Nf8 (15...ef4 16.gf4 cb4 17.ab4=+) 16.h4 (16.fe5 de5 17.bc5 bc5=) 16...Ne6 (16...ef4 17.gf4 cb4 18.ab4=+) 17.h5 (17.fe5 Nd7 18.ed6 Qd6 19.bc5 Ndc5-/+) 17...Nd4 (17...ef4 18.gf4 Nd7 19.hg6 fg6 20.bc5 Bb2 21.cd6 Qd6 22.Bb2 Qf4 23.Ng4-/+) 18.Nc3 (18.hg6 fg6 19.fe5 de5 20.bc5 Qc5=) 18...Nf3 (18...ef4 19.gf4 ab4 20.ab4-/+) 19.Qf3=+ ef4 (19...Nh5 20.bc5 ef4-/+ (20...bc5?! 21.Nb5 Qd8 22.Nd6 Qd6 23.Rb7 ef4 24.gf4=)) 20.gf4 (20.hg6 fg6 21.Bf4 cb4 22.Nb5=+ (22.ab4? Ne4 23.de4 Qc4-+)) 20...Nh5-/+ 21.Ne2? (21.Nb5 Qd8-/+) 21...f5 (better 21...Bb2 22.Bb2 ab4 (22...cb4?! 23.Rh5 ba3 24.Bd4-/+) 23.ab4 f5-+ (23...cb4?! 24.Rh5 f5 25.Qg3=)) 22.Ng3? (22.bc5 Bb2 23.Bb2 bc5 24.Qg2 fe4 25.de4-+) 22...Ng3 (worse 22...Bb2 23.Bb2 Ng3 24.Qg3 ab4 25.Qg6 hg6 26.Rh8 Kf7 27.Rh7 Ke6 28.Rc7 ba3 29.Ba3 Be4 30.Bb2-+) 23.Qg3 fe4 (worse 23...Bb2 24.Bb2 ab4 25.Qg6 hg6 26.Rh8 Kf7 27.Rh7 Ke6 28.Rc7 ba3 29.Ba3 Be4 30.Bb2-+) 24.0-0 (24.de4 Bb2 25.Bb2 Be4-+) 24...d5 1–0. Zala,Gyula (2065) – Letay,Gyula (2120), First Saturday Augusztus FM–B, 2010. (=1.a3 c5 2.e4 d6 3.b4 b6)

4.Nf3 Nf6 5.Nc3 Bb7 6.e5 de5+= 7.Ne5 (7.Bb5 Nfd7 8.bc5 a6 9.Bd7 Nd7 10.cb6 e6=) 7...cb4 (7...Qc7 8.d4 cb4 9.Nb5=) 8.ab4 e6 9.Bb5 Nbd7 10.Bc6 (10.0-0!?=) 10...Qc7=+ 11.b5?? (better 11.Bb7 Qb7 12.Nd7 Nd7 13.0-0 Bb4 14.Qg4 Bc3 15.dc3=+) 11…Qe5-+ (11...Qe5 12.Kf1 Qc7-+) 0–1. Mesa,Francisco Alonso Jr (1900) – Hernandez Machado,PM (1955), 26th Guillermo Garcia Open, 2017. (=1.e4 c5 2.a3 d6 3.b4 b6)

4.Nc3 Nf6

5.Bc4 e6 6.f4 Be7 7.Nf3 0-0 8.0-0 (8.bc5!? d5 9.ed5 ed5 10.Bb5=+) 8...d5-/+ 9.ed5 ed5 10.Be2 d4 11.Na2 Bb7 12.bc5 (12.Bb2 Qc7=+) 12...bc5 (better 12...d3!? 13.Bd3 Bf3 14.Qf3 Qd4 15.Kh1 Qa1 16.Qa8 Qa2-/+) 13.d3 Bd5 14.c4 Bc6 15.Ne5 Bb7 (15...Qc7!?=) 16.Rb1+= Qc7 17.Rb7 Qb7 18.Bf3 Qb1 19.Rf2 (19.Nc3 dc3 20.Ba8 c2+=) 19...Nbd7 20.Rb2 (20.Ba8?! Ra8 21.Rb2 Qa1+/-) 20...Qa1 21.Ba8 Ra8 22.Nc6 Bd6 23.Qc2 Re8 24.Rb1 (better 24.Kf1 Ng4 25.Rb1 Nh2 26.Kf2 Ng4 27.Kf3 Nh2 28.Kg3+-) 24...Ng4?? (better 24...Re2! 25.Ra1 Rc2 26.Na7 g5=) 25.Bd2+- (25.Ra1?? Re1) 25...Qb1 26.Qb1 Re2 (26...a6+-) 27.Qd1 Rf2 (27...Rd2 28.Qd2 Bc7+-) 28.Qg4 Rd2 29.Qd7 h5 30.Qd6 Ra2 31.Qc5 (31.Ne7 Kh7 32.Qd5 Ra1 33.Kf2 Ra2 34.Kf3 Rf2 35.Kf2 g5 36.Qf7 Kh6 37.Nf5) 31...Kh7 32.Nd4 (32.Qf5 Kh6 33.Ne7 Ra1 34.Kf2 Ra2 35.Kf3 g6 36.Qf7 Rf2 37.Kf2 h4 38.Qg6) 32…Rd2 1-0. Riehle,Marco (2345) - Manukyan,SaA (2240), Titled Tuesday, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.Nf3 e6 6.Bc4 Be7 7.0-0 0-0 8.Bb2 (8.Qe2 Nc6=) 8...Bb7 (8...d5 9.ed5 ed5 10.Be2=+) 9.Qe2 (9.bc5 d5 10.ed5 ed5=) 9...Qc7 (9...d5!? 10.ed5 ed5=+) 10.Bb3 (10.Rfe1 cb4 11.ab4 Ne4 12.Ne4 d5+=) 10...Nbd7 11.d3 Rfd8 12.Nb5 Qb8 13.c4 cb4 (13...a6 14.Nc3=) 14.ab4+= a6 15.Nbd4 a5 (15...Qc7 16.Ba4+=) 16.b5 (16.ba5!? ba5 17.Bc3+-) 16...Nc5 17.Bc2 Qc7 18.h3 e5 (18...Rdc8 19.Nb3=) 19.Nf5+= Bf8 20.Qe3 Rac8 (20...Bc8 21.Rfe1+=) 21.Nd2 Nh5 22.g3 (22.d4 Ne6+-) 22...Rb8 (22...Ne6 23.Qe2 g6 24.Ne3+=) 23.Bd1 (23.d4 ed4 24.Bd4 Re8+-) 23...Nf6+= 24.Be2 Bc8 25.Kg2 Bf5 26.ef5 Qd7 27.g4 h6 28.Bf3 Be7 (28...Rbc8 29.d4 ed4 30.Bd4+-) 29.Bc6+- Qc7 30.f4 ef4 31.Rf4 Nh7 (31...d5 32.Rff1 Ne8 33.Be5+=) 32.d4 Nb7 33.Nf3 (33.Ne4 Rdc8+-) 33...Ng5 (33...Bf6 34.Ra3+-) 34.Re1 Bf6 35.Nd2 Rf8 36.h4 Nh7 37.Nf3 Nd8 (37...a4!? 38.Bc3 Rfc8+-) 38.Bd5+- Qd7 39.Re4 White plans g5 39...Nb7 40.g5 hg5 41.hg5 Bd8 (better 41...Qf5 42.Rf4 Bg5 43.Rf5 Be3 44.Re3 Nf6 45.Rf6 gf6+-) 42.Qf4 Kh8 (42...a4+-) 43.Rh1 g6 44.fg6 (44.Qh4 f6 45.fg6 Rf7 46.Re8 Qe8 47.Qh7 Rh7 48.Rh7) 44...fg6 (44...Qg4 45.Qg4 Bg5 46.Rh7 Kg8 47.gf7 Kh7 48.Qg5 Rf7 49.Rh4) 45.Qf8 1–0. Kuge,Tom (1630) – Toutaoui,Khaled (1655), FICGS, 2013. (=1.e4 c5 2.a3 d6 3.b4 b6)

5.e5! de5 6.Qf3 e4

7.Ne4 Qd4?? 8.Nc3 Ne4 9.Qe4 Qe4 10.Ne4+-.

7.Ne4 Qd4?? 8.Nf6 Qf6 9.Bb5 Bd7? 10.Bd7 (10.Qa8 Qe5 11.Be2 Bc6 12.Qa7 Bg2+-) 10...Kd7 11.Qb7 (11.Qa8?! Qa1 12.Qb7 Ke6+-) 11...Ke6 (11...Kd6 12.bc5 bc5 13.Qa8+-) 12.c3 (12.Rb1 Kd6 13.Qa8 Qe6 14.Ne2 Nc6+-) 12...Qe5 (12...Kf5 13.Qa8 Nc6 14.Ne2+-) 13.Ne2 Qd5 (13...c4+-) 14.Nf4 (14.Nf4 Kf6 15.Nd5 Ke5 16.d4 cd4 17.cd4 Ke6 18.Nc7 Kd7 19.Na8 Kd6 20.Bf4 e5 21.Be5 Ke6 22.Nc7 Kd7 23.Nd5 Ke6 24.Nf4 Kf5 25.Qf7 Ke4 26.f3 Ke3 27.Qb3) 1–0. Foster,Duncan – Ramos,Francis (1615), FICGS, 2015. (=1.e4 c5 2.a3 d6 3.b4 b6)

7.Ne4 Qd4?? 8.Nf6 Qf6 9.Bb5 Kd8 10.Qa8 Qa1 11.Ne2 Qe5 12.d4 cd4+= 13.Bd3 Qd6 (13...Qc7 14.Nd4 Qc3 15.Kf1 Qd4 16.Qb8+=) 14.Nd4!+/- Qd4 15.Qb8 Qc3 16.Bd2 (16.Ke2 Qc7 17.Qc7 Kc7 18.Bf4 Kd7+/-) 16...Qc7 17.Qc7 Kc7 18.Bf4 Kd8 19.0-0 e6 20.Rd1 Ke7 21.Bb5 (21.Bb8 a6+-) 21...Kf6 (21...f6 22.Bc7 g5 23.Bc6+/-) 22.Rd8 Bb7 23.Bd6 Bd6 24.Rh8 (worse 24.Rd6 Rc8 25.Bd3 Rc7=) 24...h6 (24...a6 25.Rd8 Bb4 26.ab4 ab5 27.Rb8+-) 25.Rd8+- Be7 26.Rd7 Be4 27.Bd3 Bd3 28.Rd3 a5 29.c3 ab4 30.ab4 Ke5 (30...e5 31.Rd7+-) 31.f3 (31.Rd7 Kf6+-) 31...f5 32.Kf2 (32.Rd7 Kf6+-) 32...Bf6 (32...g6 33.Rd7 Bd6 34.Rb7+-) 33.Ke2 f4 (33...g5 34.Rd7 g4 35.c4 gf3 36.Kf3+-) 34.Rd7 Kf5 (34...h5 35.Kd3+-) 35.Kd3 g5 36.Rb7 Bd8 37.c4 h5 Black intends g4 38.c5 bc5 39.bc5 g4 40.c6 g3 (40...e5 41.Rh7 Kg6 42.Rd7+-) 41.h3 h4 (41...e5+-) 42.c7 Bc7 43.Rc7 e5 44.Rc5 Ke6 45.Ke4 Kf6 (45...Kd6 46.Rd5 Kc7 47.Re5 Kd7 48.Rh5 Kd6 49.Kf4 Kc6 50.Rh6 Kc5 51.Ke5 Kc4 52.Rh4 Kd3 53.Re4 Kc2 54.f4 Kc3 55.f5 Kb2 56.f6 Kc3 57.f7 Kc2 58.f8Q Kb2 59.Qb4 Kc2 60.Re2 Kd3 61.Rd2 Ke3 62.Qc3) 46.Re5 Kg6 1-0. Williams,Si1 (2460) - Nastore,Pavel_Alexandru (2230), Titled Tuesday, 2020. (=1.e4 c5 2.a3 d6 3.b4)

7.Ne4 Qd4?? 8.Nf6 Qf6 9.Bb5 Kd8 10.Qd5 Kc7 11.Qa8 Qa1 12.Qa7 Bb7+-.

7.Ne4 Nd5? 8.Bb5+- Bd7 9.Ng5 Nf6 (9...f6 10.Ne6 Qc8 11.Qh5 (11.Qd5?! Bb5 12.Nf3 Na6=; 11.Nf8 Bb5 12.Qd5 Bc6 13.Qh5 Kf8+=) 11...g6 12.Bd7 (12.Qd5?! Bb5 13.Nf3 Na6=) 12...Qd7 13.Qd5 Qd5 14.Nc7 Kf7 15.Nd5+-) 10.Bc4 (10.Qa8?! Bb5 11.Ne2 Qc7+/-) 10...e6 11.Qa8 Bc6 (11...Qc7 12.b5 h6 13.N5f3+-) 12.Qa7 Nfd7 13.N1f3 h6 14.Nf7! Qf6 (14...Kf7) 15.N7e5! Bf3 (15...Ne5 16.Qb8 Double attack (16.Qb8 Deflection; 16.Qb8 Decoy)) 16.Nf3 (16.gf3?! Qe5 17.Kd1 Qa1=) 16...Qa1 17.0-0 Bd6 18.Re1 Kd8 (18...cb4 19.d3 0-0 20.Be6 Kh8 21.Bf4 Qe1 22.Ne1 Bf4 23.Bd7+- (23.ab4?! Re8+-)) 19.bc5 Nc5 (19...bc5 20.d3 Qf6 21.Re6 Qa1+-) 20.d4 (20.d4 Qc3 21.dc5 Qc4 22.cd6+-) 1–0. Vila Cairo,Gerard (1995) – Herrero Ferrando,Salvador (1830), Benidorm ESP, 2014. (=1.e4 c5 2.a3 d6 3.b4 b6)

7.Ne4 Ne4? 8.Qe4 Qd4 9.Bb5 Kd8 10.Qa8 Qa1 11.Ne2 Qe5 12.Qa7 Qc7 13.Qa4 e6 14.Bb2 f6 15.bc5 Bc5 16.0-0 Ke7 17.Re1 Bd6 18.h3 Kf7 19.Nd4 Be5 20.Bc4 Bd4 21.Bd4 Nc6 22.Bc3 Bd7 23.Bd3 Ne7 24.Qh4 h6 25.Rb1 (25.Qh5 g6 26.Qf3 Nd5+-) 25...Nd5 26.Qh5 Kf8 27.Bb4 Nb4 28.Rb4 f5 29.Qf3 Ke7 30.Qe3 Ra8 (30...e5 A) 31.Rb6 f4 32.Rb7 fe3 (32...Qb7?! 33.Qe5 Kd8 34.Qg7=) 33.Rc7 ed2-/+; B) 31.Ba6+-) 31.Bf5 (31.Rb6?! Ra3 32.Qd4 Kf7+-) 31...Qc5 32.Be4 Qe3 33.fe3 Ra3 34.Rb6 Ra1 35.Kf2 Ra4 36.Kf3 Ra1 37.c4 Rc1 38.d3 Ba4 39.Kf4 Kf6 40.d4 g5 41.Kg4 Bd1 42.Bf3 Bf3 43.Kf3 Rc4 44.d5 h5 (44...Ke5 45.Re6 Kd5 46.Rh6+-) 45.Re6 Kf7 46.Rh6 h4 47.d6 Ke8 48.Rg6 1–0. Blazquez Gomez,Ju (2240) – Gonzalez Garcia,Francisco (1970), 83rd ch–ESP (6), 2018. (=1.e4 c5 2.a3 d6 3.b4 b6)

7.Ne4 e6 8.Nf6 Qf6 9.Bb5 Kd8 10.Qa8 Qa1+/-.

3.a3 Nc6

4.b5 Nb8 5.Bb2 b6 6.d3 (better 6.Bc4!? Bb7 7.Nf3+-) 6...Bb7 (6...Nf6 7.Nf3=) 7.f4 (7.Nf3 Nf6=) 7...e6 (7...Nf6 8.Nc3=) 8.Nf3 Nf6 9.g3 (9.Be2 Nbd7=) 9...g6 (9...a6 10.Nc3=) 10.Bg2 Bg7 (10...a6 11.Nc3=) 11.Nc3 (11.Qe2 Nbd7=) 11...0-0 (11...Nbd7 12.0-0=) 12.Qe2 (12.0-0 Nbd7=) 12...d5 (12...Nbd7 13.0-0=) 13.e5+= Nfd7 (13...Ng4!?+=) 14.0-0+- Qc7 15.Rae1 (15.a4 a5+-) 15...Re8 (15...a6 16.a4+-) 16.Nd1 (16.a4 Nf8+-) 16...a6 17.a4 Nf8 (17...d4 18.c4+-) 18.c4 (18.Nc3 Nbd7+-) 18...ab5 19.ab5 Nbd7 (19...Ra5+-) 20.Nf2 (20.Nc3 Ra5+-) 20...f5 (20...Ra2 21.Ra1 Rea8 22.Ra2 Ra2 23.Ra1 Ra1 24.Ba1+=) 21.Ra1 (21.ef6 Nf6 22.Ra1 Qd6+-) 21...d4+= 22.h3 (22.Nh3 Ra1 23.Ra1 Ra8+=) 22...Ra5 23.Ra3 (23.Ra5 ba5 24.h4 a4+-) 23...Rea8 (23...Ra3 24.Ba3 Ra8 25.Ra1+=) 24.Rfa1 Ra3 25.Ra3 (25.Ba3 h6+=) 25...Ra3 (25...Qd8 26.Ra8 Qa8 27.h4+=) 26.Ba3 Qb8 27.Bc1 ½–½. Butuc,Maria (2090) – Part,Fedor (2015), Autumn Open St Petersburg RUS, 2005. (=1.e4 c5 2.a3 d6 3.b4 Nc6)

4.b5 Nb8 5.Bb2 Nf6 6.Nc3+=.

4.b5 Nb8 5.Bb2 Nf6 6.d3 g6 7.h4 (7.Nc3 Bg7=) 7...h5 (7...Bg7 8.Nc3=+) 8.Nf3 Bg7 9.Ng5 (9.Nc3 Bd7=) 9...0-0 (9...Qa5 10.Nd2-/+) 10.Be2 a6 (10...Qa5 11.Nc3=+) 11.c4 (better 11.ba6!? Na6 12.c4=) 11...ab5-/+ 12.cb5 Qa5 13.Nd2 Qb5 14.Rb1 Qa5 15.0-0 Nc6 16.Nc4 Qc7 (16...Qa6 17.Nd2-/+) 17.Nb6 (17.Qb3 Ra6-/+) 17...Ra7 (17...Qb6 18.Bf6 Qa5 19.Bg7 Kg7 20.Ra1-+) 18.Nd5? (better 18.Qb3!?-/+) 18...Nd5-+ 19.Bg7 Kg7 20.ed5 Nd4 21.Re1 Bf5 (21...Ne2?! 22.Qe2 Re8 23.Rb3-/+) 22.a4 (22.Nf3 Nf3 23.Bf3 Ra3-+) 22...Rfa8 23.Bh5?! (23.Nf3 Ra4 24.Qc1 Kg8 25.Nd4 Rd4-+) 23...gh5 24.Qh5 Bg6 25.Qg4 Rh8 (25...Ra4?! 26.h5 Qc8 27.Qc8 Rc8 28.hg6 Kg6 29.Nh3-+) 26.Re3 (26.Rbc1 b6-+) 26...Ra4 27.Rbe1 (27.f4 Ra2-+) 27...Rh4! 28.Qd1 (28.Qh4 Nf5 Double attack (28...Nf5 Decoy)) 28...Nf5 29.Rf3 (29.Re4 b5-+) 29...Raf4 (better 29...Bh5 30.g3 Rhd4 31.Nf7-+) 30.Qa1 Nd4 31.Rfe3 Qd8 32.g3 Rfg4 (32...Rhg4 33.Nf3-+) 33.Nf3 Rh3 34.Kg2 Qh8 35.Re7 (35.Rb1-+) 35...Kf8 (better 35...Rf4! 36.R7e4 Rf3 37.Rd4 cd4 38.Kf3 Qh5 39.Kg2 Be4 40.Re4 Rh2 41.Kf1 Rh1 42.Kg2 Ra1 43.Rh4 Qd5 44.Re4 f5 45.Kh2 fe4 46.Kh3 Qh5 47.Kg2 Qh1) 36.Re8+/- Kg7 37.Rh8 Rh8 38.Nd4 Rd4 39.Re7 (39.Re3 b5=) 39...Bd3=+ 40.Rb7 Be4 41.f3 Bd5 42.Re7 Kf6 43.Re2 Kg6 44.Qb1 Kg7 45.Qb2 Kg6 (45...Ra8 46.Kf2=+) 46.Qc2 Kg7 47.Qc3 (47.Rd2 Re8 48.Rd4 cd4+/-) 47...Rh6 (47...Rb8!? 48.Qc1 f6=+) 48.Rd2= Rf6 49.Rd4 cd4 (49...Bf3? 50.Qf3 Rf3 51.Rg4 Kf6 52.Kf3+-) 50.Qd4 Bf3 51.Kf2 d5 52.Ke3 Be4 53.Qe5 Kg6 54.g4 Rf3 55.Ke2 Rf6 56.Qh5 Kg7 57.Qg5 Rg6 58.Qe5 Kg8 59.g5 Re6 60.Qb8 Kg7 61.Kf2 Kg6 62.Qg8 Kf5 (better 62...Kh5!?=) 63.Qf7+/- Ke5 64.Kg3 Rg6 65.Kg4 d4 66.Qf4 (66.Qe7!? Re6 67.Qc5 Bd5 68.Qc7 Ke4 69.Qh7 Ke3+-) 66...Kd5+/- 67.Qf7 Ke5 68.Qe7 Kd5 69.Kf4 Re6?? (69...Bc2 70.Qe2 Rc6 71.Qg2 Kd6 72.g6+-) 70.Qb7 (70.Qd7 Rd6 71.Qb5 Ke6 72.Ke4 Ke7+-) 70...Rc6?? (better 70...Kd6 71.Qb6 Kd5 72.Qd8 Kc5+-) 71.Qd7 Rd6 72.Qb5 Ke6 73.Ke4 d3 (73...Ke7 74.Qc5 Kd7+-) 74.Qb3 (74.Qe8) 74...Ke7+- 75.Qd1 d2 76.Kf5 (76.g6 Re6 77.Kf4 Rf6 78.Kg5 Rf2+-) 76...Kf7 (76...Rd5 77.Kg6+-) 77.g6! Rg6 78.Qd2 Rf6 79.Kg5 Rg6 80.Kh5 Rf6 81.Qd7 Kf8 82.Kg5 Rf2 (82...Rf7 83.Qd8 Kg7+-) 83.Qd8 Kg7 84.Qc7 (84.Qd4 Kf7 85.Qf2 Ke6 86.Qd4 Ke7 87.Qd5 Kf8 88.Qd7 Kg8 89.Kf6 Kf8 90.Qd8) 84...Kg8 (84...Rf7 85.Qe5 Kf8 86.Qh8 Ke7+-) 85.Qc4 Kg7 86.Qd4 (86.Qd4 Kf7 87.Qf2 Ke7 88.Qc5 Ke6 89.Kf4 Kd7 90.Ke5 Kd8 91.Qa7 Ke8 92.Ke6 Kd8 93.Qd7) 1-0. Riehle,Marco (2345) - Divya,Deshmukh (2305), Titled Tuesday 5th May, 2020. (=1.e4 c5 2.a3 d6 3.b4)

4.b5 Nb8 5.Nc3+=.

4.c3 g6 5.Bb5 (5.d4 cd4 6.cd4 Bg7=+) 5...Bd7 (5...Nf6 6.d3-/+) 6.Nf3 Bg7 7.0-0 cb4 (7...Nf6 8.bc5 dc5 9.d3=+) 8.Bc6 (8.ab4!? Nf6 9.Qe2=+) 8...Bc6-/+ 9.ab4 Be4 10.d4 (10.Nd4 e5 11.d3 Bg2 12.Kg2 ed4 13.Re1 Kf8-/+) 10...Qc7 11.Re1 Bb1 (11...Nf6 12.Bg5 Bf5 13.Qa4 Qd7 14.Qb3-/+) 12.Rb1=+ Qc3 (better 12...Nf6=+) 13.Qb3?? (13.Bb2 Qc7 14.Rc1-/+) 13...Qb3-+ (13...Bd4 14.Qa4 Kf8 15.Bb2 Qb2 16.Rb2 Bb2 17.Qd7+-) 14.Rb3 Nf6 15.Rbe3 (15.b5 Kd7-+) 15...e6 (15...Nd5 16.Ra3-+) 16.Bb2 (16.b5 Kd7-+) 16...0-0 17.h3 Nd5 18.Rb3 b6 (18...Rfc8 19.b5-+) 19.Ra1 Nc7 (19...a6!? 20.Bc3-+) 20.b5 f6 (20...Rfc8 21.Ba3 Bf8 22.Bc1-+) 21.Rc1 Nd5 22.Re1 (22.Rc6 Rfd8-+) 22...e5 23.de5 (better 23.Rd3 Nf4 24.Rd2-+) 23...fe5 (23...de5 24.Rd1 Nf4 25.g3-+) 24.Ba3 (24.Rd1!? Nf6 25.Rd6=+) 24...Rfd8-/+ 25.Rd3 (25.Rd1 Nc7 26.Rd6-+ (26.Bd6?? Ne8-+)) 25...e4 26.Re4 (26.Rd5 ef3 27.gf3 Bf8=+) 26...Nf6 (26...Nc3!? 27.Rb4 d5-/+) 27.Red4 (27.Re6 Ne8 28.Re7 Rdc8=+) 27...d5 28.Be7 Rdc8 (28...Ne4 29.Bd8 Bd4 30.Nd4 Rd8 31.Nc6=) 29.Bf6= Bf6 30.Rd5 Rc5 (30...a5 31.ba6 Ra6 32.Rd7=) 31.Rd6 (31.Rc5 bc5 32.Rd6 Be7=) 31...Be5 32.Ne5 Re5 33.Rd8 Rd8 34.Rd8 Kf7 35.Rd7 Re7 36.Re7 Ke7 37.Kf1 (37.f4 Kd6 38.g4=) 37...Kd6 38.Ke2 Kc5 39.g4 (39.Kd3 Kb5 40.f4 Kc5-+) 39...Kb5 40.f4 Kc6 (40...Kc4 41.Ke3-+) 41.Kd3 Kd6 42.Kc4 h5 43.f5 (43.Kd4 Ke6 44.Ke3-+) 43...gf5 44.Kd4 (44.gh5 Ke5 45.h6-+) 44...fg4 45.hg4 hg4 46.Ke4 a5 47.Kf4 (47.Kd4 g3 48.Kd3 g2 49.Kd4 g1Q 50.Kc3 Qe3 51.Kc2 a4 52.Kd1 Qf2 53.Kc1 a3 54.Kd1 a2 55.Kc1 a1Q) 47...a4 48.Kg4 (48.Ke3 a3 49.Ke2 g3 50.Kf3 a2 51.Ke3 a1Q 52.Kf3 Qf1 53.Ke3 Qd1 54.Kf4 g2 55.Kg5 g1Q 56.Kh6 b5 57.Kh7 Qh5) 48...a3-+ 49.Kf5 a2 50.Kf6 a1Q 51.Kf7 (51.Kg5 Qa4 52.Kf5 Qh4 53.Kg6 Ke6 54.Kg7 Qh5 55.Kg8 Kf6 56.Kf8 Qf7) 51...Qe5 52.Kg6 (52.Kf8 Qe7 53.Kg8 Ke5 54.Kh8 Kf6 55.Kg8 Qg7) 52...Ke6 53.Kh6 (53.Kh7 Qg5 54.Kh8 Kf6 55.Kh7 Qg7) 53...Kf7 54.Kh7 Qh5 0–1. Epikhin,Stanislav – Balvas, Zhukovskiy, 2011. (=1.e4 c5 2.b4 d6)

3.a3 Qc7

4.Nc3 a6 5.Nd5 Qd8 6.bc5 dc5 7.Rb1 e6 8.Nb6 Ra7 9.Nf3 Bd6 10.Bb2 f6 11.Nc4 Ne7? (better is 11...Bc7+=) 12.Nd6+- Qd6 13.e5 fe5? (better is 13...Qd8 14.ef6 gf6 15.Bf6 0-0+-) 14.Be5 (14.Ne5?! 0-0+=) 14...Qd8 15.Bb8 Ra8 16.Be5 0-0 17.Bd3 Nc6 18.Qe2 Qe7 19.h4 b5 (19...Ne5 20.Qe5 Rf6+-) 20.Qe4 Bd7 (20...g6 21.Qc6 Bb7+-) 21.Qh7 Kf7 22.Bg6 1–0. Paleologu,V (2160) – Champoud,Gilles, Lugano SUI, 7th New Open, 2013. (=1.e4 c5 2.a3 d6 3.b4 Qc7)

4.Nc3 e6 5.bc5 dc5 6.Nf3 Nc6 7.d3 a6 8.g3 Nf6 9.Bg2 Nd4 10.0-0 Be7 11.Bf4 Qa5 12.Bd2 Qd8 13.Re1 0-0 14.e5 Nd5 15.Nd4 cd4 16.Ne4 (16.Nd5 ed5 17.Qb1 b6=) 16...Qc7 17.Bg5 f6 18.ef6 Nf6 19.Nf6 Bf6 (worse 19...gf6 20.Bh6+-) 20.Bf6 Rf6 21.Rb1 Rb8 22.Rb4 Qd6 23.Qe2 (23.Qh5 Rf5 24.Qh4 e5+-) 23...a5+= 24.Rb3 (24.Ra4 b5 25.Ra5 Qc7+=) 24...b5= 25.f4 Bd7 26.Qd2 Rc8 27.Re2 (27.Qa5 Rc2 28.Qb4 Qb6=) 27...Qc7 28.Qe1 Qa7 29.Qf2 Qc5 30.Qe1 Qc7 31.Qf2 e5 32.Bd5 Kf8 33.Re5 Qe5 34.fe5 Rf2 35.Kf2 Rc2 36.Kf3 Rc3 (better 36...Rh2!? 37.Ke4 Rg2=) 37.Ke4+= a4 38.Rb1 Ra3? (38...Be8 39.Ra1 Bg6 40.Kd4 Rd3 41.Kc5 Ke7+-) 39.Rf1+- (39.Kd4?! Ke7+=) 39...Ke8 40.Kd4 (40.e6!? Be6 41.Be6+-) 40...b4+- 41.e6 Bb5 42.Ke5 Rd3 43.Rf7 b3 (43...a3 44.Rb7 a2 45.Ba2 Ba6 46.Rg7 b3+-) 44.Rg7?? (44.Rb7 Rd5 45.Kd5 Ba6+-) 44...Rd2 (better 44...Rd5 45.Kd5 b2-+) 45.Rg8 (better 45.Rb7 Rd5 46.Kd5+-) 45...Ke7= 46.Rg7 Ke8 47.Rg8 (better 47.Rb7 Rd5 48.Kd5+-) 47...Ke7= 48.Rg7 Ke8 49.Rg8 (49.Rh7?! b2 50.Be4 Re2+=) ½–½. Kruglikov,Alexander (2000) – Zakharov,Y (1650), Chigorin Memorial (9), 2018. (=1.e4 c5 2.a3 d6 3.b4 Qc7)

3.a3 Nd7

4.Nc3 Ngf6 5.Bc4 e6 6.Rb1 6...b6 (6...Ne4 7.Ne4 d5 8.Qe2 dc4 9.bc5 Nc5 10.Qc4=+) 7.d3 (7.bc5 Nc5 8.Qe2 Bb7 9.Bb5 Ncd7=) 7...Bb7 (7...cb4 8.ab4 Bb7 9.Nf3=) 8.Qe2 (8.bc5 d5 9.Bb5 Rc8 (9...de4? 10.c6+-) 10.ed5 Rc5=) 8...Be7 (8...cb4 9.ab4 (worse 9.Rb4 d5 10.ed5 Bb4 11.ab4 Qe7-+) 9...Be7 10.Nf3=) 9.Nf3 (9.bc5 Nc5 10.Bb5 Ncd7=) 9...0-0 (9...d5 10.Ba2=+) 10.0-0 (10.bc5 d5 11.c6 Bc6=) 10...Rc8 (10...d5 11.Ba2=) 11.b5 (11.bc5 Nc5 12.Re1 a6=) 11...Re8 (11...d5 12.Ba2=) 12.Re1 (12.Ba2 d5=) 12...Nf8 (12...d5 13.Ba2=) 13.h3 (13.Bb3 Ng6=) 13...Ng6 (13...d5 14.Bb3=) 14.Nh2 (14.Qd2 d5 15.Ba2 Bd6=+) 14...d5=+ 15.Ba2 de4 (15...c4!? 16.ed5 ed5=+) 16.de4= Bd6 (16...Qc7 17.Nf3=) 17.Nf3 Ne5 18.Nd2 (18.Bc4 Qe7=) 18...Bb8 (18...c4 19.Kh1= (worse 19.Bc4 Qc7 20.Nd1 Nc4 21.Nc4 Qc4 22.Qc4 Rc4-/+)) 19.Bb2 Ng6 (19...Qc7 20.f4 Ng6 21.g3=) 20.Nf3 (20.Rbd1 Qc7 21.Nf3 Rcd8=) 20...Qc7 21.g3 Rcd8 22.Rbd1 Ba8 (22...Qe7 23.Bb3=) 23.Nd2 h5 (23...Rd7 24.Nb3=) 24.Nf1 (24.Qe3 h4 25.Ne2 hg3 26.fg3 Ne5=) 24...h4 25.Rd3 (25.Bc4 Rd4 26.Bd3 hg3 27.Ng3 Nf4=+) 25...hg3 26.fg3 Ne5 (26...Rd4 27.Re3=+) 27.Re3 (27.Rd8 Rd8 28.Bc1 Rd4=+) 27...Rd7 28.Nb1 Red8 29.Bc3 (29.Nbd2 Bb7=) 29...Qb7=+ 30.Nbd2 Re7 (30...Bd6 31.Nc4 Nc4 32.Bc4=) 31.Kh2 (31.Nf3 Nf3 32.Qf3 e5=) 31...Nfd7 (31...Bc7 32.Nc4 Qb8 33.Nfd2=) 32.Bb3 (32.Rd1 Nf8=) 32...Ng6 33.Qh5 Be5 34.Nf3?? (better 34.Be5 Nde5 35.Nf3=+) 34...Bc3-+ 35.Rc3 Nf6 36.Qg5 Ne4 37.Re4 Qe4 38.Qh5 (38.Re3 Qb7 39.Bc4-+) 38...Qe2 (38...Qe2 39.Kg1 Rd1-+) 0–1. Lewis,An (2270) – Szabo,Ben (2215), FSIM November, 2009. (=1.e4 c5 2.a3 d6 3.b4 Nd7)

4.Nf3 Ngf6 5.Nc3 g6 6.Bb2 (6.d4 cd4 7.Nd4 a5=) 6...Bg7 7.Rb1 b6 (7...0-0 8.Be2=) 8.Bc4 (8.Bb5 cb4 9.ab4 Bb7+=) 8...e6 (8...cb4!? 9.ab4 0-0+=) 9.Nb5+- Nb8 (better 9...Bf8!?+-) 10.e5 (10.bc5 dc5 11.e5 Nd5 12.Nd6 Kf8+-) 10...de5 (10...Ne4 11.ed6 Bb2 12.Nc7 (12.Rb2?! Nd6 13.Qe2 0-0+=) 12...Kf8 13.Rb2 (worse 13.Na8 Ba3 14.b5 Nd6+-) 13...Nd6 14.Na8 Nc4 15.Rb3+-) 11.Be5 (11.Ne5?! Bb7 12.bc5 bc5+=) 11...0-0 12.Nc7 Nbd7 13.Na8 Ne5 14.Ne5 Qd4 (14...Bb7 15.Nb6! ab6 16.Nf3+-) 15.Qe2 Bb7 16.Nc7 Bg2 (16...Qd8 17.Na6 Nd5 18.Nd3+- (18.bc5?! Nf4 19.Qd1 Ng2 20.Kf1 Be5=)) 17.Rg1 Nh5 18.Nf3 (18.Ne6 fe6 19.Be6 (19.Rg2?! Nf4 20.Nf3 Qf6+-) 19...Kh8 20.Nf7 (20.Rg2?! Nf4 21.Rg4 Be5=) 20...Kg8 21.c3+- (worse 21.Rg2 Nf4 22.Ng5 Kh8+-)) 18...Bf3=+ 19.Qf3 Qc4 20.Kd1? (better 20.bc5 Qc2 21.Rb5-/+) 20...cb4-+ 21.Rb4 (21.Qb7 ba3 22.c3 Rd8 23.Ne6 Qe6-+) 21...Qc7 22.d3 (22.Rh4 Qe5 23.c3 Rd8-+) 22...Qc3 23.Rgg4 (23.Qe3 Rc8 24.Rc4 Rc4 25.dc4 Qa1 26.Qc1 Qe5-+) 23...Bh6 (23...Qa1 24.Ke2 Bc3 25.Qe3-+) 24.Rgc4 (24.Ke2-+) 24...Qd2 0–1. Glinskas,Marius – Cemeris,Ignas, Panevezys Open C, 2016. (=1.e4 c5 2.a3 d6 3.b4 Nd7)

3.a3 e5

4.Bc4 Nc6 5.Nc3=.

4.Bc4 Nf6 5.d3 (5.Nc3 Nc6 6.Nf3 Be7=) 5...Be7 (5...cb4 6.ab4 Nc6 7.Nf3=) 6.Ne2 (6.bc5 dc5 7.Nf3 Nc6=) 6...b6 (6...Na6 7.b5 Nc7 8.Nbc3=) 7.0-0 Nc6 8.c3 (8.bc5 bc5 9.Nbc3 0-0=) 8...a5 (better 8...0-0!?=+) 9.b5+= Nb8 10.Qb3 0-0 11.f4 (11.Nd2!?+=) 11...ef4= 12.Nf4 Nbd7 13.Bf7 Rf7 14.Ne6 c4 15.Qa2 Qe8 16.Nc7 Qd8 17.Na8?? (better 17.Ne6 Qe8 18.Nc7=) 17...Bb7-+ 18.Qc4 Qa8 (18...d5 19.Qa2 de4 20.d4-+) 19.Qa2 (19.Nd2 d5 20.Qa2 Qc8-+) 19...Nc5 (19...d5!? 20.Nd2 Qc8 21.Bb2 de4 22.Ne4-+) 20.Qe2 Nb3 21.Ra2 Nc1 22.Rc1 Nd7 (22...Qc8 23.Rf1-+) 23.Nd2 (23.Rf1 Bf6-/+) 23...Qf8 (23...Qc8 24.d4-/+) 24.d4 White plans e5 (24.Rf1 d5=+) 24...Nf6 (24...Bg5 25.Re1-+) 25.a4 (25.Rf1=+) 25...Bc8 (25...Qc8!?-/+) 26.Nc4= White prepares the advance e5 26...Bd8 (26...d5 27.Ne5 Ne4 28.Nf7 Qf7 29.Rf1=) 27.e5 de5 28.Ne5 (28.Qe5?? Re7 29.Qg3 Be6-+) 28...Re7 29.Qd3 Bc7 30.Re2 Bb7 (30...Be6 31.Nc6 Re8 32.Rce1+=) 31.Rce1+= Nd5? (better 31...Bd6+=) 32.Nc6+- Bc6 (32...Re2 33.Qe2 (33.Re2?! Nf6+=) 33...Bc6 34.bc6+-) 33.bc6 (33.Re7 Ne7 34.bc6 Nd5+-) 33...Re2 34.Qe2 Nf6 (34...Qc8+-) 35.Qe6 Kh8 36.Qe7 Qb8 37.Re6 (37.Qf7 Bh2 38.Kh1 Bd6+-) 37...Bh2 (37...Kg8 38.h3 Bd8+-) 38.Kh1 h6?? (38...Kg8 39.Qb7 Qb7 40.cb7 Bb8 41.Rb6 Kf7+-) 39.d5 Nd5 (39...Qf4 40.c7 Qc7 41.Qf8 Kh7+-) 40.Qe8 Kh7 (40...Qe8 41.Re8 Kh7 42.Kh2 Kg6+-) 41.Qg6 (41.Qg6 Kg8 42.Re8 Qe8 43.Qe8 Kh7 44.Kh2 Nc7 45.Qc8 Na6 46.Qa6 h5 47.Qb6 h4 48.c7 h3 49.c8Q hg2 50.Qf5 g6 51.Qbg6 Kh8 52.Qe5) 1–0. Dzwikowski,A (1975) – Sacharewicz,K (1800), 25th Poznan Open Poland, 2017. (=1.e4 c5 2.a3 d6 3.b4 e5)

4.Nf3 a6 5.Bc4 h6 (5...Nc6 6.bc5 dc5 7.Nc3=) 6.bc5 Nc6 7.cd6 Bd6 8.d3 Nf6 9.a4 0-0 10.0-0 Qe7 11.Bb2 Be6 12.Nbd2 Nb4 (better 12...Rfd8!?+/-) 13.Ne5 Bc4 (13...Rfd8 14.Rb1+-) 14.Nec4 Bc7 15.a5 b5 (15...Rfd8+-) 16.ab6 Bb8 (16...Bf4 17.Ba3 Rfb8 18.Rb1+-) 17.Ba3 a5 18.c3 Bd6 (18...Rd8 19.Qf3+-) 19.e5 Be5 20.Re1 Nd7 21.Nf3 Qf6 (21...f6 22.b7 Rab8 23.Na5+-) 22.Nfe5 Ne5 23.Ne5 Rfd8 (23...Rfe8 24.b7 Rab8 25.Nd7 Qc3 26.Nb8 Rb8 27.Rc1 Qa3 28.Rc8 Kh7 29.Rb8+-) 24.cb4 Qb6 (24...ab4 25.Bb4 Ra1 26.Qa1 Qb6 27.Ba5+-) 25.Nf7! Kf7 (25...Rdb8 26.Qg4 Qf6 27.Ne5 ab4 28.Nd7+-) 26.Qb3 Kg6 27.Re6 (27.Re6 Qe6 28.Qe6 Kh7 29.Bb2+-) 1-0. marekt - Tony _ R, ChessWorld.net, 2021. (=1.e4 c5 2.b4 d6 3.a3)

3.a3 e6

4.Bb2 Nc6 5.b5 Nb8 (5...Ne5 6.Nc3=) 6.Nf3 Be7?? (6...Nf6+=) 7.c4?? (better 7.Bg7 Bf6 8.Bh8 Bh8 9.Nc3+-) 7...Nf6= 8.Nc3 0-0 9.a4 Re8 (9...Nbd7 10.Be2=) 10.g3 a6 11.Bg2 Nbd7 12.0-0 h6 (12...Ne5 13.Qe2=) 13.d3 b6 14.Qc2 Bb7 15.Nd2 Nf8? (15...Qc7 16.ba6 Ra6 17.Nb5=) 16.f4 (better 16.e5!? Bg2 17.ef6 Bf1 18.fe7 Re7 19.Rf1+/-) 16...N6d7 (16...Qc7 17.Nb3+=) 17.Nb3 ab5 (17...a5 18.d4=) 18.ab5 (18.Nb5!? e5 19.f5+=) 18...Qc7= 19.Qf2 Bf6 20.g4 (better 20.Bf3=) 20...e5 (better 20...Be7=+) 21.g5+/- hg5 (21...Ra1 22.Ba1 Bd8 23.gh6 gh6 24.Qg3 Kh8 25.Nd5 Bd5 26.ed5+/-) 22.fg5 Nh7? (better 22...Bg5 23.Ra8 Ra8 24.Qf7 Kh8+/-) 23.gf6+- Ndf6 24.Nd5 Nd5 25.ed5 Qe7 26.Qg3 Nf6 27.Nd2 (27.Bf3!? Qf8+-) 27...Nh5 28.Qg4 Nf4?? (28...Ra1 29.Ba1 (29.Qh5?! Rf1 30.Bf1 Ra8+=) 29...g6 30.Ne4+-) 29.Ne4 (better 29.Rf4 Ra1 30.Ba1+-) 29...Bc8 30.Qf3 Bf5 31.Bc3 f6 (31...Qd7 32.Qe3+-) 32.Bd2 Be4 (32...Ra1 33.Ra1 g5 34.h4+-) 33.Qe4 Ng2 34.Kg2 Kf7 (34...Ra1 35.Ra1 Qd7 36.Qg6+-) 35.Qh4 (35.Rf6! Qf6 (35...gf6?? 36.Qh7 Kf8 37.Bh6 Qg7 38.Qg7) 36.Rf1 Rh8+-) 35...Rh8 36.Qg4 Raf8 (36...Ra1 37.Ra1 g6+-) 37.h4 g6 (37...Rd8 38.Ra6 Qd7 39.Kg3+-) 38.Bg5 (better 38.Rf6! Qf6 39.Rf1 Qf1 40.Kf1 Kg7 41.Ke2 Rf7+-) 38...Kg7 39.Bd2 f5?? Attacking the isolated pawn on h4 (better 39...Kf7!? 40.Rf6 Qf6+-) 40.Qg3?? (better 40.Bg5 Qb7 41.Qg3+-) 40...f4+/- 41.Qg5 Qd7 42.Ra6?? (better 42.Bf4 ef4 43.Rf4 Rf4 44.Qf4+/-) 42…Rh5-+ (42...Rh5 43.Qh5 gh5-+) 0-1. gregorgysi (2510) - rar (2100), net-chess.com, 2021. (=1.e4 c5 2.a3 d6 3.b4)

4.Nc3 Nf6 5.bc5 dc5 6.e5 (6.Nf3 Be7=) 6...Nd5 7.Ne4 Nc6 (7...Be7 8.Nf3=) 8.Bb2 (8.Nf3 Be7=) 8...Be7 9.Qg4 (9.Nf3 0-0=) 9...0-0 10.Bd3 (10.Nf3 f6 11.ef6 Nf6 12.Bf6 Bf6=) 10...b5 (10...a6 11.Nf3=) 11.Nf3 (11.Bb5!? Nd4 12.Bd4 cd4 13.Nf3+=) 11...c4= 12.Be2 f5 (12...a6 13.0-0=) 13.ef6 Bf6 (13...Nf6 14.Nf6 Bf6 15.Rb1 Bb2 16.Rb2=) 14.Nf6 Nf6 15.Qg3 (15.Qh4 a6=) 15...Bb7 (15...a6 16.Rb1=) 16.0-0 Qd7 17.Rad1 (17.a4 Nh5 18.Qg4 Nf4+=) 17...Nd5 (17...Nh5 18.Qg4 Nf4 19.Rfe1=) 18.d3 (18.Ne5 Ne5 19.Be5 Rf5+=) 18...c3= 19.Bc1 e5 20.Rfe1 (20.Ne5 Ne5 Combination) 20...Rae8 21.Ng5 (21.h3 Nf4 22.Bf4 ef4=+) 21...Nf6 (21...Nd4 22.Bg4 Qd6 23.Nf3 Nc2 24.Re5 Re5 25.Qe5 Qe5 26.Ne5-/+) 22.Ne4= Ne4 (22...Nd4!? 23.Nf6 Rf6=) 23.de4+= Nd4 24.Bg4 (better 24.Bh5!?+=) 24...Qc7?? (better 24...Qf7=+) 25.Rd4!+- (25.Rd4 Rd8 26.Rb4+-) 1–0. Foster,Duncan (1700) – Vollmer,Steve, FICGS, 2014. (=1.e4 c5 2.a3 d6 3.b4 e6)

4.Nf3 Nf6 5.bc5 (5.Nc3 Be7=) 5...Ne4 6.cd6 Bd6 7.Bb5 Bd7 8.Bd7 (8.Qe2 Bb5 9.Qb5 Qd7=) 8...Nd7=+ 9.0-0 (9.d3 Nec5=+) 9...0-0 (9...Qf6 10.d4 h6 11.Re1=) 10.Re1= Nef6 (10...Ng5 11.Nc3=) 11.d4 (11.Nc3 a6=) 11...Rc8=+ 12.Nbd2 Bb8 (12...b5 13.Ra2=+) 13.c4= Nb6 (13...b6 14.Qa4=) 14.c5 (14.Qb3 Qc7=) 14...Nbd5 15.Nb3 (15.Qe2 b6 16.Nb3 bc5 17.dc5 Qd7=) 15...h6 16.Ne5 Be5 17.Re5 Nd7 18.Rh5 N7f6 19.Rh3 (19.Re5 Re8=) 19...Ne7 (19...Qc7 20.Qf3=) 20.Qd3 (20.Bf4 Qd7=) 20...Ng6 (20...Qc7 21.Qf3 Ned5 22.Rb1=) 21.Qf3 Qd5 (21...Nd5 22.Be3=) 22.Bb2 (better 22.Bh6!? Rfd8 23.Qd5 Nd5 24.Bg5+-) 22...Rc7 23.Re1 Qf3 24.Rf3 (worse 24.gf3 Nf4 25.Rg3 Nd3-/+) 24...Nd5 25.g3 (25.Bc3 Rfc8=) 25...b6 (25...Rd8=+) 26.cb6 (26.h4 Rb8 27.Ba1 Nf8=+) 26...Nb6 (26...Rc2!? 27.Bc1 ab6-/+) 27.Rc3 Rfc8 (27...Rc3 28.Bc3 Nd5 29.Rc1=) 28.Rec1 (28.Rc7 Rc7 29.Rc1 Rc4=) 28...Nd5 (28...Rc3 29.Bc3 Ne7 30.g4=) 29.Rc7= Rc7 (better 29...Nc7 30.Nc5 Nd5=) 30.Kg2?? (30.Rc7 Nc7 31.Nc5 Ne7=) 30...Rc1?? (better 30...Rb7 31.Rc8 Kh7-+) 31.Nc1 (31.Bc1 Nge7=) 31...Nge7 32.Nd3 Nc6 (32...Nb6 33.Bc3=) 33.Kf3 Kf8 (33...Na5 34.Nc5=) 34.Ne5 ½–½. Foster,Duncan – Trigance,Emile, FICGS, 2015. (=1.e4 c5 2.a3 d6 3.b4 e6)

3.a3 Nf6

4.Nc3 a6 5.Nf3 e6 6.Be2 Be7 7.0-0 0-0 8.Rb1 Bd7 (8...cb4 9.ab4 d5 10.e5=) 9.Re1 (better is 9.bc5!? dc5 10.e5+/-) 9...Bc6 10.Bf1 Nbd7 11.d4 cd4 12.Nd4 Qc7 13.b5 (13.Bb2 b5=) 13...ab5= 14.Ndb5 Bb5 15.Nb5 Qc6 16.Bg5 Rfe8 17.Bd3 Nc5 18.Qf3 Nfd7 19.Be7 Re7 20.Qg3 Nd3 (20...e5!?=) 21.Qd3 Nc5 22.Qd6 Qd6 23.Nd6 Ra3 24.Ra1 Ra1 25.Ra1 h6 26.Ra8 Kh7 27.Rc8 (27.e5 Rc7 28.f4 f6+=) 27...Rd7= 28.Rc5 Rd6 29.Kf1 Kg6 30.Ke2 Rd7 31.g4 f6 32.h4 e5 33.Rd5 Rc7 34.Kd3 Kf7 (34...h5 35.f3=) 35.c4+= Ke7 36.Kc3 g6 37.Kb4 Rc6 38.g5 hg5 39.hg5 Ke6 40.gf6 Kf6 41.Rb5 Kg5? (41...b6 42.Rd5=) 42.Rb7 (42.Re5!? Kf4 43.Re8+/-) 42...Kf4+/- 43.Kb5 Rc8 44.Rg7 (44.c5 Ke4 45.c6 Kd5 46.Rd7 Ke6+-) 44...Ke4 45.Rg6 Kd4? 46.Rd6+- Kc3 47.c5 Rb8 48.Ka6 Kc4+/- 49.c6 Kc5 50.c7 Ra8+= 51.Kb7 ½–½. Szulc,Marek (1800) – Witbrodt,Jakub (1800), Wiosna Poland, 2008. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

4.Nc3 a6 5.f4 e6 6.Nf3 Nc6 7.bc5 dc5 8.e5 Nd5 9.Ne2 b6 10.g3 (10.c4 Nde7=) 10...Bb7+= 11.Bg2 Qc7 (11...c4!?+=) 12.c4= Nde7 13.0-0 Nf5 14.Rb1 Ncd4 15.Ned4 Nd4 16.Bb2 Nf3 17.Bf3 Bf3 18.Qf3 Rd8 19.Bc3 Be7 20.f5 ef5 21.g4 0-0 22.gf5 f6 23.e6 Bd6 24.Rf2 Be5 25.Be5 fe5 26.Qg3 Rf6 27.Re1 The isolani on e5 becomes a target 27...Rd4 28.Re5 Rg4 29.Qg4 Qe5 30.Re2 Qb8 31.e7 Qe8 32.Qe4 g6 33.Qd5 Kg7 34.fg6 hg6 35.Re6 Re6 36.Qe6 b5 37.Qe5 Kf7 38.Qc5 Qe7 39.Qe7 Ke7 40.cb5 ab5 41.Kf2 Kd6 42.Ke3 Kc5 43.d4 Kc4 44.Ke4 Kb3 45.d5 Ka3 46.d6 b4 47.d7 b3 48.d8Q b2 49.Qb8 Ka2 50.Kf4 b1Q 51.Qb1 Kb1 52.Kg5 1–0. Mayer,I (2020) – Csetneki,M (1640), FSFMB April Budapest HUN, 2011. (=1.e4 c5 2.b4 d6)

4.Nc3 b6 5.Rb1 Bb7 6.bc5 dc5 (6...Ne4? 7.Bb5 Nd7 8.Ne4 Be4 9.c6 Bc6 10.Bc6+-) 7.d3 (7.Nf3!?+=) 7...e5= 8.Nf3 Be7 9.Be2 0-0 10.0-0 (worse 10.Ne5 Qd4 11.Nb5 Qe5-+) 10...Nc6 11.h3 Bd6 12.Bg5 Ne7 (better 12...Nd4!?=) 13.Bf6+/- Qc7?? (better 13...gf6 14.Nh4 Kh8+/-) 14.Be7 (14.Nb5!? Qb8 15.Nd6 gf6+-) 14...Be7 15.Nd5 f6 (15...Bd5 16.ed5 f5+-) 16.Nc7 Rac8 (16...Rac8 17.Nd5 Bd6+-). gregorgysi (2410) - bolu (2265), net-chess.com, 2021. (=1.e4 c5 2.a3 d6 3.b4)

4.Nc3 b6 5.Bc4 Be6 (5...a6!?=) 6.Be6+- fe6 7.e5 de5 (7...Nfd7 8.Nf3+-) 8.bc5 bc5 9.Nf3 e4 10.Ng5 Qb6 (10...Qc7 A) 11.Nge4 Ne4 12.Bb2 Nf6-+; B) 11.Nce4 Ne4 12.Qh5 g6 13.Ne6 Qd6-+ (13...gh5 14.Nc7 Kd7 15.Na8+-); C) 11.Bb2+-) 11.0-0 Nc6 (11...g6 12.Rb1 Qc6 13.Nce4 Ne4 14.Qf3+-) 12.Nge4 (12.Rb1!? Qc7 13.Nce4 Ne4 14.Ne4 e5+-) 12...Ne4+- 13.Ne4 g6 14.c3 Bh6 (14...Rd8 15.Qa4 Rd7 16.d3+-) 15.d3+- Bc1 16.Qc1 Ne5 17.Qe3 c4 18.d4 Ng4? (better 18...Nd3!?+-) 19.Qe2 (19.Qf3 h5 20.Nf6 ef6 21.Qa8 Qd8 22.Qc6 Qd7 23.Qc4 0-0+-) 19...h5 (19...Nf6 20.Nc5+-) 20.Qc4 0-0 21.h3 Rf4 (21...Rac8 22.Qd3 Nf6 23.Ng5+-) 22.Nc5 (better 22.Rab1 Ne3 23.fe3 Rf1 24.Rf1+-) 22...Kg7 (22...Ne5 23.Qe6 Qe6 24.Ne6 Rf6+-) 23.Ne6 Kh6 24.Nf4 (24.Nf4 Qd6 25.hg4 Qf4 26.gh5+-) 1–0. Kuge,Tom (1755) – Clark,William (1800), FICGS, 2014. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.Nc3 b6 5.Nf3 g6 6.Bb2 Bg7 7.Nd5 0-0 8.Nf6 Bf6 9.d4 cd4 10.Nd4 e5 (10...Bb7 11.Qd3=) 11.Nf3 (11.Nb5 Be6 12.Qd6 Qc8+/-) 11...Bg4 12.Qd5 Nd7 13.Qd6 Rc8 14.0-0-0 Be7 15.Qd2?? (15.Qd5 Qc7 16.Qb3 a5=) 15...Qc7 (better is 15...Bf3 16.Kb1 Bg5-+) 16.c3 Bf3 17.gf3 Qd8?? (better is 17...Rcd8=) 18.Qd7+- Qd7 (18...Bg5 19.Kb1+-) 19.Rd7 Bg5 20.Kc2 Rcd8 21.Ra7 Rd2 22.Kb3 Rf2 23.Bd3 Rf3 24.Bc2 Rd8 25.a4 Rf2 26.Rd1 Rd1 27.Bd1 Rh2 28.a5 ba5 29.ba5 Rd2 30.Bc2 Rd8 31.Ka2 Rd2 32.Bb3 Re2 33.Bf7 Kg7 34.Bc4 Kh6 35.Be2 Be3 36.Rb7 g5 37.Bg4 Bf4 38.a6 Be3 39.a7 Ba7 40.Ra7 Kg6+- 41.c4 h5 42.Bh5! Kh5 43.Be5 g4 44.c5 Kh4 45.c6 g3 46.Bg3! Kg3 47.c7 Kf3 48.c8Q Ke4 49.Rd7 Ke5 50.Qe8 Kf6 51.Rf7 Kg5 52.Qg8 Kh6 53.Rh7 1–0. Vezentan,Andreea_N – Mitran,Maria_C_E, Calimanesti ROM, Ch U10 (g), 2013. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.bc5 dc5 5.c3 e6 (5...Nc6 6.d3-/+) 6.e5 Nd5 7.d4 (7.Nf3 Nc6+=) 7...cd4 (7...Qa5 8.Nf3+=) 8.cd4+= Be7 9.Nf3 0-0 10.Bd3 Nc6 11.0-0 a6 (11...f5 12.Bc4+=) 12.Re1 (12.Qc2 Bd7 13.Bh7 Kh8+=) 12...b5 (12...f5 13.Bd2=) 13.Bc2 (13.Bb2 Bb7+=) 13...Bb7+= 14.Qd3 g6 15.Bh6 Re8 16.Nbd2 Rc8 17.Bb1 Qb6 Black plans b4. The backward pawn on d4 becomes a target (17...Na5 18.Ne4+=) 18.Ne4 (18.Ba2 Red8=) 18...Red8 (18...Na5 19.Ba2=) 19.Rd1 (19.Ba2=) 19...Qa5 (19...Na5 20.Ba2 Nc4 21.Rdc1+=) 20.Bc2 (20.Ba2 Qb6+= (20...Qa3? 21.Qa3 Ba3 22.Bd5+-)) 20...b4 21.ab4 Qb6 (21...Qb4?? 22.Rdb1+-) 22.Rab1?? (better is 22.Qd2=) 22...Ncb4-+ 23.Qb3? (23.Bd2-+) 23...Bf8 (better is 23...Nc2 24.Bg5 Bg5 25.Nfg5 Qb3 26.Rb3 Bc6-+) 24.Bg5 (24.Bf8 Rf8 (24...Rc2 25.Bb4 Nb4 26.Nf6 Kg7 27.Qc2 Nc2 28.Rb6 Bf3 29.gf3+-) 25.Nc5 Bc6+=) 24...Re8 (24...Rd7 25.Nc5 Bc5 26.dc5 Rc5+=) 25.Nf6 (better is 25.Bd3+=) 25...Kh8?? (better is 25...Nf6 26.Bf6 Qb5+= (worse is 26...Rc2 27.Qc2 a5 28.Rdc1+/-)) 26.Ne8+- Nc3?? (26...Re8 27.Rdc1 a5+-) 27.Rd3 (better is 27.Nd6 Bf3 28.Nc8+-) 27...Nb1+= 28.Qb1 Re8 29.Bf6 (29.Rc3 Rb8 30.g3 Kg8+=) 29...Kg8 30.Rb3 (30.Rd2 Rc8 31.Bd1 a5+=) 30...a5 (30...Bf3 31.gf3 Qd4 32.Be4-/+) 31.Ng5 (better is 31.g3+=) 31...a4?? (31...Qd4!? 32.Rh3 Bc5-/+) 32.Qd1 (32.Rh3 Qc6 33.f3+-) 32...ab3?? (32...Bh6 33.Rb1 a3-+) 33.Nh7 (33.Qh5! Be7 34.Qh7 Kf8 35.Qf7) 33...Kh7 (better is 33...bc2 34.Qf1 Bh6-+) 34.Qh5 (34.Qh5 Bh6 35.Bg5 bc2 36.Qh6 Kg8 37.Bf6 c1Q 38.Qc1-+) 1–0. Cherepanova,Evita – Gadasi,Noam, Batumi GEO, 2014. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.bc5 dc5 5.Nc3 a6 6.Nf3 Nc6 7.h3 e6 8.Bb2 g6 (8...Bd6 9.a4=) 9.e5 (9.Bd3 Bg7=) 9...Nd5 (better is 9...Nd7!?+=) 10.Ne4+= b5 (10...Be7 11.c4 Nf4 12.Qb3+=) 11.c4+/- bc4 12.Bc4 Be7 13.0-0 0-0 14.Re1 a5 (14...Rb8 15.Rb1+/-) 15.d4 (15.Rc1!?+/-) 15...cd4 16.Qd2 (16.Nd4 Ne5 17.Ne6 Be6 18.Be5+=) 16...Kg7 (16...Rb8!?+=) 17.Nd4 Nd4 18.Bd4 Ba6 19.Bd5 Qd5 20.Nf6 Bf6 (20...Qb5 21.Qg5 Qd3 22.Be3+-) 21.ef6+- Kh8 22.Qh6 (22.Re5 Qd6+-) 22...Rg8+/- 23.Rad1 Qh5 (23...Rad8+/-) 24.Qh5 (better is 24.Qd2!? Qd5 25.Re5+/-) 24...gh5+= 25.Re5 (25.f3 Rac8+=) 25...Bb7= 26.g3 h4 27.g4 Bd5 28.Rh5 Rab8 29.Rh4 Rb3 30.Bc5 Rc8 31.Bd6 Rcc3 32.Kh2 Rc2 33.Kg1 Rcc3 34.Kh2 Rc2 35.Kg1 Rbb2 36.Bg3 Rb3 37.Bd6 Rbb2 38.Bg3 Ra2 39.Rb1 Rcb2 40.Rc1 Rc2 41.Rb1 ½–½. Quek,Shi Ning Kristine – Musaeva,Shakhnazi, World Youth U16 Olympiad, 2014. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.bc5 Ne4 5.cd6 Qd6 6.c3 (6.Nc3 Nc3 7.dc3 Qe5 8.Be2 Qc3 9.Bd2 Qc7-/+) 6...Nc6 (6...Qe6 7.Ne2=+) 7.d4 e5 (7...Bf5 8.Nf3 g6=+) 8.d5=+ Ne7 (better 8...Bf5 9.f3 Nc5 10.dc6 Qc6=+) 9.Qa4+- Bd7 10.Qe4 f5 11.Qd3 g6? (11...Nd5!? 12.c4 Nb6+-) 12.Nd2 (12.c4 b5 13.cb5 Bg7+-) 12...b5? (better 12...Nd5 13.Nc4 Qe6+-) 13.a4! Bg7 (13...ba4 14.Nc4 Combination) 14.ab5 e4 15.Nc4 Qc5 (15...Qf6 16.Qd4! Qd4 17.Nd6 Kf8 18.cd4 Bd4 19.Bh6 Bg7 20.Bg7 Kg7+-) 16.Qd2 Qd5 17.Nb6! Qd2 (17...ab6 18.Qd5 Combination) 18.Bd2 Rd8 19.Ra7 Be6 (19...Be5 20.Nh3 Nc8 21.Nd7 Rd7 22.Ra6+-) 20.Ne2 Rb8 21.Be3 Bf6 22.c4 (22.Ra6 Rf8+-) 22...Nc8 (22...Rd8 23.h4 h6 24.c5+-) 23.Nc8 Rc8 (23...Bc8 24.Nf4 Rb7 25.Ra8 Bc3 26.Bd2 Bd2 27.Kd2+-) 24.c5 0-0 (24...Bb3 25.c6 Rd8 26.Bd2+-) 25.Bd4 Bd5 (25...Bb3 26.Bf6 Rf6 27.Nd4+-) 26.Bf6 Rf6 27.Nc3 (better 27.Nf4 Rf7 28.b6 Ra7 29.ba7 Ba8 30.Bc4 Kg7 31.Ne6 Kf6+-) 27...Be6 (27...Bb3 28.Ra3 Bf7 29.c6+-) 28.b6 Rb8 29.Bb5 Rf7 (29...Kf8 30.Rh7 Kg8 31.Ra7+-) 30.Rf7 Kf7 31.Ke2 (31.Na4 Ke7 32.c6 Rg8+-) 31...Kf6 32.Rd1 Ke5 33.Rd6 g5 (33...h5+-) 34.Re6! Ke6 35.c6 1–0. Roebers,Eline (1815) – Droin,Augustin (1950), 5th Basamro Int, 2017. (=1.e4 c5 2.b4 d6 3.a3 Nf6)

4.bc5 Ne4 5.cd6 Nd6 6.d4 g6 7.Nf3 Bg7 8.Be2 0-0 9.0-0 Nc6 10.Be3 Bf5 11.c4 Rc8 12.Nbd2 Qc7 13.Nb3 Rfd8 14.Bf4 Qd7 (14...e5 15.Bg5 f6 16.Bd2+=) 15.Nc5 Qc7 16.Nb3 Qd7 (16...e5 17.Bg5 Ne7 18.Qe1+= (worse is 18.Ne5 f6-/+)) 17.Nc5 Qc7 18.Nb3 ½–½. Arbore,Daniele (1660) – Evans,James, Wch U12 Maribor, 2012. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 cb4 5.ab4 d5 6.Bb2 (better 6.e5!? Ng8 7.Nf3+=) 6...de4-/+ 7.Nc3 (7.Bf6 ef6 8.c3 f5-/+) 7...ed3 (7...e5 8.b5 Bb4 9.Ra4-+) 8.Bd3 e6 9.Nf3 (9.b5!?-/+) 9...Bb4 10.0-0 0-0 11.Qe2 Nc6 12.Rfd1 Qe7 13.Ne4 Nd5 14.c3 Nf4 15.Qf1 (better 15.Qe3!? Nd3 16.Rd3-/+) 15...Nd3-+ 16.Qd3 Bc5?? (better 16...Rd8 17.Qe3 Ba5-+) 17.Nc5 (better 17.Qb5!? Bf2 18.Nf2+/-) 17...Qc5= 18.Ba3 Qf5 19.Bf8 (19.Qf5 ef5 20.Bf8 Kf8=) 19...Qd3=+ (19...Kf8?? 20.Qd6 Ke8 21.Ra6+-) 20.Rd3 Kf8 21.Nd4 Ke7 22.Nc6 bc6 23.Rad1 a5 24.c4 (24.Rd4 c5 25.Rg4 g6=+) 24...a4-/+ 25.Ra3 c5 26.Rb1 Ra7 27.Kf1 Bd7 28.Ke2 Kd6 29.Ke3 Bc6 30.Rb6 Kc7 31.Rb2 Bg2 32.f3 Bh3 33.Rba2 Bf1 34.Ra4 Ra4 35.Ra4 h5 (35...Kb6 36.f4=) 36.h4 (better 36.Ra7 Kd6 37.Rf7 Bc4 38.Rg7+-) 36...Kb6= 37.Kf4 f6 38.Ra8 (38.Ra1 Bc4 39.Rb1 Kc6=+) 38...Bc4=+ 39.Rg8?? (better 39.Ke3 g5 40.Rf8=+) 39...e5-+ 40.Kf5 Bg8 41.Kg6 c4 (41...c4 42.Kg7 Bd5 43.Kf6 c3-+) 0-1. Chess289 (2450) - Arifars17 (2470), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.a3 d6 3.b4)

4.d3 b6 5.g3 Bb7 6.Bg2 g6 7.Bb2 Bg7 8.f4 0-0 9.Nh3 Nbd7 10.0-0 Qc7 11.Nd2 Rfc8 12.c4 (12.c3 b5=) 12...e6 (better 12...Ne4!? 13.Bg7 Nd2 14.Bb7 Qb7 15.Qd2 Kg7=+) 13.Qe2= a6 14.Rae1 (14.g4 Ne8 15.Bg7 Ng7=) 14...b5 15.g4 bc4 16.dc4 cb4 17.ab4 Qb6 18.Kh1 Qb4 (better 18...a5 19.g5 Nh5 20.ba5 Qa5=) 19.Ba1?? (better 19.Rb1 Ne4 20.Ne4 Qc4 21.Qc4 Rc4 22.Nd6 Bg2 23.Kg2 Rc2 24.Rf2 Rf2 25.Nf2= (worse 25.Kf2 Rb8-/+)) 19...Qc5-/+ 20.g5 Nh5 21.Bg7 Ng7 22.Nf2 a5 23.Ng4 a4 24.Bf3 a3 25.Nf6 (better 25.Ra1!?-/+) 25...Nf6-+ 26.gf6 Nh5 (26...Ne8 27.e5 Bf3 28.Rf3-+) 27.Bh5 Qh5 (27...gh5? 28.Qg2 Kf8 29.Qg7 Ke8 30.Rb1+-) 28.Qh5 gh5 29.Rg1 Kh8 30.Rg7 Rf8 (30...Rcb8 31.Ra1 a2 32.Kg2-/+) 31.h4 d5 32.cd5 (32.Nf3 h6 33.Ne5 a2 34.Nf7 Rf7 35.Rf7 a1Q 36.Ra1 Ra1 37.Kh2 Rb1=) 32...ed5 33.Kh2? (better 33.Nf3 Ra6 34.Ng5 Rf6 35.Rh7 Kg8 36.Rh5-+) 33...de4 34.Nc4 a2 35.Ra1 Bd5 (35...Ra6 36.Ne3-+) 36.Ne3? (better 36.Nb6 Be6 37.f5-/+) 36...Be6 (36...Bb3 37.Rg5-+) 37.Rg5 (37.f5 Bb3-+) 37...Rfb8 38.f5 Rb2 39.Kg3 (39.Rg2 Rb1 40.Rg1 Rg1 41.Kg1-+) 39...Bb3 (39...Rb1 40.Ra2 Ba2 41.Kf4-+) 40.Kf4 Rb1 41.Rg1 Rg1 42.Rg1 a1Q 43.Ra1 Ra1 44.Ke4 Ra4 45.Ke5 (45.Kf3 Rh4 46.Kg2 Rd4-+) 45...Rh4 46.Kd6 (46.Ng2 Rb4 47.Ne3 h4-+) 46...Re4 0–1. Pade,Joachim (1645) – Reimer,Otto (1925), 21st Rhein–Main–Open, 2018. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 Qb6 5.Be2 (5.bc5 Qc5 6.d4 Qc7=) 5...cb4 6.ab4 Nc6 (6...Qb4 7.c3 Qb5 8.Nf3=) 7.c3 d5 8.b5 (8.ed5!? Nd5 9.Nf3+=) 8...Qb5=+ 9.d4 Qb6 10.e5 Nd7 11.f4 (11.Nf3 Qc7=+) 11...e6 (11...Ndb8 12.Bd3=+) 12.Nf3 a5 (12...f6 13.Bd3=+) 13.Bd3 Qc7 14.0-0 Be7 15.Ng5 g6 (15...b6 16.f5 Bg5 17.Bg5 ef5 18.Na3=) 16.Na3 h6 (16...Na7 17.Qb3=) 17.Nb5 Qb8 18.Nh3 Nb6 (18...b6 19.Ba3=) 19.Ba3+= Bd7 (19...0-0 20.Qg4 Kg7 21.Be7 Ne7 22.Qh4+=) 20.Nd6 (20.Bd6!? Bd6 21.Nd6 (21.ed6?! 0-0=) 21...Kf8 22.Qb3+-) 20...Bd6+= 21.Bd6 (worse 21.ed6 Nc8-/+) 21...Qd8 22.Qb1 Nc8 23.Ba3 (worse 23.Qb7 Nd6 24.ed6 Rb8-/+) 23...N8e7 24.Nf2 (24.Qb7? Rb8 25.Be7 Ke7-+ (25...Rb7?! 26.Bd8 Kd8 27.Rfb1 Rb1 28.Rb1=)) 24...h5 (24...b6 25.Ng4+=) 25.Qc1 (25.Bc5 Nf5+=) 25...Nf5 26.Nd1 (26.Qb2 b6+=) 26...Nce7 (26...b5 27.Bc5=) 27.Rb1 Bc6 28.Bc5 Qd7 29.Re1 (29.Rf2 a4=) 29...a4 30.Ne3 a3 (30...b5!?=) 31.Ra1 (31.Ba3 Ne3 32.Re3 Nc8+-) 31...Ne3 32.Re3 0-0 (32...Nf5 33.Rh3+-) 33.Ra3+- Ra3 (33...Rfc8 34.Ra8 Ra8 35.Qb1+-) 34.Ba3 (34.Qa3 Re8+-) 34...Ra8 35.Bb4 0–1. Zala,Gyula (2080) – Honsch,Pal (2015), First Saturday Junius FM–A, 2010. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 Nc6 5.c3 a6 (5...g6 6.Nf3-/+) 6.f4 (6.Nf3 g6=+) 6...b6 (6...g6!?-/+) 7.Nf3=+ g6 8.g3 (8.Be2 Bg7=+) 8...Bg7-/+ 9.Bg2 0-0 (9...Bd7 10.0-0=+) 10.0-0 e5 (10...Be6 11.Ng5 Bg4 12.Qc2-/+) 11.Ra2 (11.Qc2 Ng4=+) 11...Be6 (11...Bg4 12.Rb2-/+) 12.Raf2 (12.Rb2 cb4 13.ab4 b5=+) 12...Ng4-/+ 13.Re2 ef4 14.gf4 (14.Bf4 Qe7-/+) 14...Rc8 (14...Qe7 15.Bb2-/+) 15.Qe1 (15.h3 Nf6 16.Ng5 Bd7=+) 15...Nf6 (15...Re8 16.Ng5 Bd7 17.h3=+) 16.Kh1 (16.Nbd2 Nh5 17.Nc4 b5-/+) 16...d5 (16...b5 17.Qh4 Re8 18.Nbd2-/+) 17.f5 (better 17.ed5 Bd5 18.Nbd2-/+) 17...de4 (better 17...gf5 18.ed5 Bd5=+) 18.fe6= ef3 19.Rf3 fe6 (19...cb4 20.ab4 fe6 21.Bh3+=) 20.Re6 (20.Bh3 e5 21.Be6 Kh8 22.Bc8 Qc8=) 20...Qd7 21.Bg5 (21.bc5 bc5 22.Bh3 Qd5=) 21...Rce8 (21...Ng4 22.Rf8 Kf8 23.d4+=) 22.Rfe3= Re6 23.Re6 Re8 (23...Nd8 24.Rb6 cb4 25.ab4= (worse 25.cb4 Ng4 26.Bh4 Qd3-/+)) 24.Re8 Ne8 25.Qe4 Ne5 26.Qd5 Qd5 27.Bd5 Kf8 28.Bd8 a5? (better 28...b5=) 29.Bb6+- Nd3? (29...Nf6 30.Bc5 Ke8+-) 30.ba5 Nd6 (30...Be5 31.a6 Bb8 32.Bc4 Nf2 33.Kg2+-) 31.a4 1–0. Chernyshov,Konstantin (2540) – Kachar,Vladimir (2340), 4. Open A Moscow RUS, 2008. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 Nc6 5.Nc3!?+=.

4.d3 Nc6 5.f4 cb4 6.ab4 Nb4 7.c3 Nc6 8.Nf3 Bd7 (8...g6 9.d4-/+) 9.Be2 Qb6 (9...g6 10.0-0-/+) 10.e5 (10.Nbd2 Ng4 11.d4 Na5=) 10...Ng4 (10...Nd5!?-/+) 11.d4+= e6 12.h3 Nh6 13.0-0 (13.Na3 d5 14.0-0+=) 13...Be7 (13...Nf5 14.Na3 d5 15.Bd3=) 14.Kh1?? (better is 14.ed6!? Bd6 15.Na3=) 14...0-0 (14...Nf5 15.Qe1 d5 16.g4+=) 15.Bd3 (15.ed6 Bd6 16.Ne5+=) 15...f5 (15...Nf5 16.Bf5 ef5 17.ed6 Bd6 18.c4+=) 16.Ng5 (better is 16.ed6!? Bd6 17.Na3=) 16...de5-/+ 17.fe5 Nd8 (17...Na5 18.Rf2-/+) 18.Qf3 (18.Na3 Nhf7 19.Nf3 a6+=) 18...Ndf7 19.Nf7 Nf7 (worse is 19...Kf7 20.Bh6 gh6 21.Nd2+=; 19...Rf7?! 20.Na3=) 20.Qh5 (20.Nd2 Bc6 21.Qg3 Qc7-/+) 20...Rac8 (better is 20...Bb5 21.Bb5 Qb5-/+) 21.g4?? (better is 21.Ba3 Ba3 22.Ra3-/+) 21...g6-+ 22.gf5 gh5 23.f6 Bf6! 24.ef6 h6 25.Rg1 Ng5 26.Bg5 Bc6 27.Kh2 hg5 28.Rg5 Kf7 29.Nd2 Rg8 30.Nc4 Qc7 31.Ne5 Qe5! 32.Re5 Rg2 33.Kh1 Ra2 (33...Ra2 34.Be4 Ra1 35.Kg2 Be4 36.Re4 Rc3-+) 0–1. Roubinek,David – Turza,Pavel, Brno Duras BVK op–B, 2006. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 e5 5.Nf3 Bg4 6.h3 Bf3 7.Qf3 Nc6 (7...cb4 8.ab4 d5 9.ed5 Bb4 10.c3=) 8.c3+= Be7 9.Bg5 Nd7 10.Be7 (10.Bd2 Bg5=) 10...Qe7 11.Be2 0-0 12.0-0 Qg5 13.Qe3 Qe3 14.fe3 Nb6 15.Nd2 Rfd8 16.Bd1 f6 17.Bb3 Kf8 18.Nc4 Nc4 19.Bc4 Ne7 20.bc5 dc5 21.Rab1 b6 22.g4 h6 23.Kh2 Rd6 24.h4 g5 (24...Rad8 25.g5=) 25.hg5 hg5 26.Kg3 Kg7 27.Rh1 Rh8 28.Rh8 Kh8 29.a4 Nc6 30.Bd5 (30.Rd1 Kg7+=) 30...Na5 (30...Ne7 31.c4=) 31.Kf3 (31.d4 a6+/-) 31...Kg7 (31...Nc6 32.Rd1+=) 32.Ke2 (32.d4 a6+/-) 32...Rd8 (32...Nc6 33.Rd1+=) 33.d4+/- Rc8 Black prepares c4 34.Kd3 (34.de5!? fe5 35.Rf1+/-) 34...c4= 35.Ke2 Rh8 36.de5 (36.Rf1!?=) 36...Rh2=+ 37.Kf3 fe5 38.Rf1 (38.Rb4 Rc2 39.Bc4 Kf6=+ (worse 39...Nc4 40.Rc4 Kf6 41.Rc6 Kf7 42.Rc7 Kg6 43.Re7+/-)) 38...Rc2 39.Kg3 Rc3 40.Rf5 (40.Rf7 Kg6 41.Ra7 Rc1=+) 40...Kg6 (40...Re3!? 41.Kf2 Ra3-/+) 41.Re5= Rd3 42.Re7 c3 43.Rc7 (43.Ra7 Kf6=) 43...a6 (43...Kf6 44.Kf3=) 44.Kf3= Kf6 45.Ke2 Rd2 46.Ke1 Rd3 47.Ke2 Rd2 48.Ke1 Rc2 49.Kd1 Rd2 50.Ke1 ½-½. Jablonicky,Martin (2295) - Apaydin,F (2260), European Online CC GpF, 2021. (=1.e4 c5 2.a3 d6 3.b4)

4.d3 e6 5.f4 Be7 6.Nf3 0-0 7.Be2 Nbd7 8.c3 b5 9.Be3 (9.e5 de5 10.fe5 Nd5 11.bc5 Nc5= (worse 11...Bc5 12.d4+-)) 9...Bb7 10.Nbd2 (10.0-0 Ng4 11.Bd2 Qb6 12.bc5 dc5=) 10...Ng4=+ 11.Bg1 f5 12.g3 cb4 (better 12...Qc7!?=+) 13.ab4= Bf6 14.Qb3 Qe7 15.Nd4 Bd4 16.Bd4 Ngf6 17.Bf3 Kh8 (17...fe4 18.de4 a6 19.0-0+=) 18.0-0 (18.e5!? de5 19.fe5+- (19.Bb7?! ed4 20.Ba8 Ra8+=)) 18...e5 (better 18...fe4!? 19.Ne4 Bd5=) 19.fe5+- (worse 19.Ba7 ef4 20.gf4 fe4 21.de4 Ne4 22.Be4 Be4 23.Ne4 Qe4=+) 19...de5 20.Ba7 (20.Ra7 fe4 21.de4 (21.Rb7 ef3 22.Bc5 Nc5 23.Re7 Nb3 24.Nb3 Ng4-+) 21...Ra7 22.Ba7+=) 20...f4?? (better 20...Qd6 21.d4 fe4=+) 21.gf4+- ef4 The passed pawn on e4 will quickly become a dangerous weapon 22.Bd4 Qe8 23.Ra8 Ba8 24.Bg2 Ne5 (24...Ng4 25.Nf3+-) 25.Rf4 (better 25.c4!? Nfd7 26.cb5+-) 25...Nd3+= 26.Rf1 Ne5 27.Qa2 Ng6? (27...Bc6+-) 28.Bc5 (better 28.e5 Ne5 29.Qa8 Qa8 30.Ba8 Ra8 31.Be5+-) 28...Rf7 (better 28...Rg8+=) 29.Nf3 (29.Bh3 Bc6+-) 29...Rd7?? (29...Ne4!? 30.Bd4 Nf4=+) 30.e5 (30.Ng5 Bb7 31.Bd4+-) 30...Bf3? (better 30...Bd5 31.Qe2 Rd8+=) 31.ef6+- (31.Rf3?! Ne5 32.Rf1 Nd3=) 31...Bg2 32.f7 Threatening mate... how? (32.Qg2 gf6 33.Bd4 Ne5 34.Rf6 Rd4 35.cd4 Nd3+-; 32.Kg2?! Qe4 33.Kg1 gf6=) 32...Qa8 (32...Rf7 33.Qf7 Bc6 34.Qe8 Be8+-) 33.Qa8 Ba8 34.f8R Nf8 35.Rf8 (35.Bf8?! Bd5=) 1–0. Dobrov,V (2515) – Al Mahmood,Salman, World Rapid, 2017. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.d3 g6 5.Bb2 Bg7 6.Nf3 0-0 7.Be2 Qc7 8.0-0 a6 9.c4 (9.e5 de5 10.Be5 Qb6+=) 9...b5 (9...Nc6 10.Qb3=) 10.Nc3 (10.e5 de5 11.Be5 Qb6+=) 10...bc4= 11.dc4 Ne4 12.Nd5 Qb7 (12...Qd8 13.Bg7 Kg7 14.Bd3+=) 13.Bg7 Kg7 14.bc5 Nc6 (14...Nc5 15.Rb1 Qa7 16.Nb6+/-) 15.Nd4 (15.cd6 Nd6 16.Rb1 Qa7+/-) 15...Bd7? (better is 15...dc5!? 16.Rb1 Nd4 (worse is 16...cd4 17.Rb7 Bb7 18.Qb1+-) 17.Rb7 Bb7+=) 16.Nc6 (16.Bf3 f5 17.cd6 ed6 18.Nc6 Bc6 19.Be4 fe4 20.Qd4 Kh6+/-) 16...Bc6 17.Qd4 Nf6 18.Nf6 ef6 19.cd6 Bg2 20.Rab1 Qe4 21.Qe4 Be4 22.Rbc1 f5 23.c5 Bc6 24.Bc4 Rfe8 25.Rfe1 Re4 26.f3 Re1 27.Re1 Ra7 (27...Bf3 28.Re7+-) 28.Kf2 f4 (28...Kf6 29.Ke3+-) 29.Rb1 Kf6 (29...Ra8 30.Rb6 Ba4 31.c6 (31.Ra6?! Ra6 32.Ba6 Kf6+-) 31...Bc6 32.Rc6+-) 30.Rb6 Bb5 (30...Bd7+-) 31.Bb5 ab5 32.c6 (32.c6 Ke6 33.d7+-) 1–0. Jaroch,Pawel (2230) – Pilimon,Zbigniew (1745), Memorial Zamenhofa Poland, 2008. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

4.d3 g6 5.f4 Bg7-+ 6.c3 0-0 (6...Na6 7.Nf3-/+) 7.Nf3 (7.bc5 Nc6-/+) 7...b6 (7...Nc6 8.bc5 dc5 9.Be2-/+) 8.Bb2 (better 8.Be2-/+) 8...Ne8 (better 8...Nc6!?-/+) 9.Nbd2= Nc7 (9...Nd7 10.Be2=) 10.d4=+ cd4 (10...Bb7!?=+) 11.cd4= d5 12.e5 (12.Bd3 Ne6 13.g3 Ba6+=) 12...Bd7 (12...Ne6 13.g3=) 13.Bd3+= a5 14.ba5 (14.0-0 ab4 15.ab4 Ra1 16.Qa1 Ne6+=) 14...Ra5 (14...ba5 15.0-0=) 15.Qb3 (15.0-0 Ne6 16.g3 Bh6+=) 15...Ne6= 16.g3 Ba4 17.Qa2 Nc6 (17...Qd7=) 18.h4 (18.Bc3 Ra7 19.0-0 Bh6=) 18...Qa8 (18...Bb5 19.Qb3 Ba4 20.Qa2=) 19.h5= Bb5 (better 19...Rc8!? 20.Kf2 Bb5 21.Bb5 Rb5=) 20.Bb5+= Rb5 21.a4 Nb4? (better 21...Rb4 22.h6 Bh8+=) 22.Qb3+- Nd3 23.Qd3 Rb2 24.Qc3 Rd2 25.Qd2 1–0. Dobrov,Vladimir (2495) – Grapsa,Georgia (2085), 7. Open Korinthos GRE, 2004. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

4.Nc3 cb4

5.ab4 Nc6 6.b5 Ne5 7.d4 Ng6 8.Be2 b6 (8...Qc7 9.Qd3+=) 9.Bf3 Bb7 10.Nge2 e5 11.Qd3 Qc7 12.Bg5 Nd7 (12...Be7 13.d5+=) 13.Bg4 (13.0-0 Be7 14.Be7 Ne7+/-) 13...f6 (13...h6 14.Bd7 Qd7 15.Be3+/-) 14.Be3+/- ed4 15.Bd7 (15.Nd4? Nde5 16.Qd2 Ng4-+; 15.Bd4?! Nc5 16.Qe3 Ne5+/-) 15...Qd7 16.Qd4 Ne5 (16...f5 17.Nd5+/-) 17.0-0 Be7 18.Nf4 (18.Ng3 0-0+-) 18...0-0 19.Nfd5 Rfc8 20.Ra4 Bf8 (20...Rc5 21.Rfa1 Bd5 22.Nd5 (22.ed5?! Qc7 23.R4a3 Nc4=) 22...Rb5 23.Qd1+-) 21.Rfa1+- Bd5 (21...Qg4 22.Kh1 f5+-) 22.Nd5 (better 22.Qd5 Qf7 23.h3+-) 22...Qb5+/- 23.Rb4 (23.Qd1 Qc6+/-) 23...Qc5 (23...Qe8 24.c3=) 24.Qb2 (24.Qc5!? dc5 25.Rba4+=) 24...Qc2= 25.Qa3 (25.Qc2 Rc2 26.Rb6 a5=+) 25...Nd3 (25...Nc4!? 26.Qa6 Qe4-/+) 26.Rd4=+ Nc5 27.Rb4 (27.Rc1 Qe2 28.h3 Qh5=+) 27...Qd3 (27...f5 28.ef5 Qf5 29.Qa2-/+) 28.Qa2 (28.Qd3 Nd3 29.Rba4 b5 30.Ra7 Ra7 31.Ra7 Rb8=+) 28...Kh8 29.Nf4 (29.Rd4 Qb3=+) 29...Qc3-/+ 30.Nd5 Qe5 31.f4 Qe8 32.Qc4 Qf7 33.Rf1 (33.Bc5 Rc5 34.Qb3 f5 35.Nb6 Qb3 36.Rb3 Rb8 37.Ra7 fe4-+) 33...Re8-+ 34.Qc2 (34.Bc5 dc5 35.Rb2 Rad8-+) 34...Rac8 35.Rfb1 (35.Bc5 dc5 36.Ra4-+) 35...Rc6 (better 35...f5-+) 36.Rc4? (better 36.f5!?-/+) 36…Rec8 ½-½. Hnat,Z (1800) - Vlachopulos,E (1705), World Senior Teams +65, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.ab4 e5 6.d4 (6.Nf3 Nc6=) 6...Be7 (6...d5 7.Ra4 ed4 8.Qd4-/+) 7.Nf3 (7.d5 0-0=) 7...Qc7 (7...d5 8.Bb5 (worse 8.Ne5 Bb4 9.Bd2 Bc3 10.Bc3 Ne4=+) 8...Bd7 A) worse 9.Ne5 Bb4 (9...de4?! 10.Bc4=) 10.Bd2 Bc3 (10...de4?! 11.Nd7 Nbd7 12.Ne4 Bd2 13.Nd2=) 11.Bd7 Nbd7 12.Bc3 Ne4-/+; B) 9.Bd7 Nbd7 B1) worse 10.Ne5 Bb4 11.Bd2 Bc3 (11...Ne4? 12.Ne4 Qe7 13.Bb4 Qb4 14.c3+-) 12.Bc3 Ne4-/+; B2) 10.Nd5 Nd5 11.ed5 Bb4 12.Bd2 Bd2 13.Qd2= (worse 13.Kd2 0-0-/+)) 8.Bb2 0-0 9.Nb5 (9.b5 Be6=) 9...Qb6 10.de5 de5 11.Bc4? (11.Be5 Ne4 12.Qd4 Qd4 13.Bd4 A) 13...Bb4 14.c3 Bd6 15.Bd3+/- (15.Nd6?! Nd6 16.Ra7 Re8 17.Be2 Ra7 18.Ba7 Be6=); B) 13...Nc6=+) 11...Ne4 (11...Be6 12.Be6 A) 12...Qe6 13.Nc7 (13.Ra7? Ra7 14.Na7 Bb4 15.c3 Bc5-+) 13...Qc4 14.Na8 (worse 14.Be5 Bb4 15.Nd2 Qe4 16.Qe2 Qg2-/+) 14...Qb4 15.Kf1 Qb2 16.Rb1=+ (16.Ra7? Ne4 17.Qe1 Bc5-+); B) 12...Bb4?! 13.c3 Qb5 14.Qb3 fe6 15.Qb4 Qb4 16.cb4-/+; C) 12...Qb5-+) 12.0-0=+ Nc6 (12...Bb4 13.Qe2 Nf6 14.Be5=) 13.Ne5= Bb4 (13...Bf6 14.Nf7 Rf7 15.Bf7 Kf7 16.Qh5 Kf8 17.Rae1 Bb2 18.Re4=) 14.Qh5 (14.Nf7 Qc5 15.Qd3 Rf7 16.Qe4 Kf8+-) 14...Ne5 (14...Nd8 15.Qh4 Bf5 16.Qf4+=) 15.Be5 (15.Qe5 Qg6 16.Bd3 f5+=) 15...Nf6 (15...a5 16.Bg7 Kg7 17.Qe5 Nf6 18.Nc7=) 16.Qh4 Bd7 (16...Bf5!?=) 17.Nc7+= Rac8 18.Rfb1 (18.Bd3 h6 19.Bf6 Rc7 20.Qg3+-) 18...a5+= 19.c3 Rc7 (19...Ng4!? 20.Bd3 Qh6 21.Qh6 gh6+=) 20.Bc7 Qc7 21.cb4 Rc8 (21...b5 22.Bd3 a4 23.Re1+=) 22.Rc1+/- Qe5 (22...Be6!? 23.ba5 Nd7+/-) 23.ba5+- (23.Ra5?! b5 24.Rf1 g5+=) 23...Qb2 (23...Rc5 24.Qg3+-) 24.Rab1 (24.Qf4 Re8+-) 24...Qa3 (24...Qe5 25.h3 (25.Rb7 g5 26.Qg3 Rc4-/+) 25...Rc7 26.Qg3 Qg3 27.fg3+-) 25.Qf4 Bc6 26.h3 (26.Qg5 h6 27.Qd2 Re8+-) 26...h6? (26...Qa5 27.Bb5! Nd5 28.Qf5+/-) 27.Qe3 (better 27.Ra1 Qf8 28.a6+-) 27...Qa5+/- 28.Qe7 Rf8 29.Ra1 (29.Bb5 Re8 30.Qb4 Qb4 31.Rb4 Nd5 32.Bc6 bc6+/-) 29...Qg5+= 30.Rd1?? (better 30.Bf1+=) 30…Qg2 0-1. Soukup,J (2390) - Gahan,M (2265), Titled Arena Apr 3rd, 2021. (=1.e4 c5 2.a3 d6 3.b4)

5.ab4 e6 6.Nf3 Be7 7.Be2 0-0 8.0-0 (8.Bb2 d5 9.e5 Nfd7=) 8...d5 9.e5 Nfd7 10.d4 (10.b5 Qc7 11.Kh1 Rd8= (worse is 11...Ne5 12.b6 Qb6 13.Ne5+/-)) 10...Bb4+= 11.Nb5 Nc6 12.c3 Be7 13.Bf4 b6 14.Qc2 Bb7 15.Bd3 a6 16.Nd6 Bd6 17.ed6 Nf6 18.Rfe1 Rc8 19.Qb1 (19.Ba6? Ba6 20.Ra6 Nb4-+) 19...b5 20.Ng5 g6 21.Qd1 Nh5 22.Qg4 (22.Bc1 Ng7+=) 22...Qf6 (22...Nf4!? 23.Qf4 Nb8-/+) 23.Bc1+= Qg7 24.d7 (24.Ba3 Nf6 25.Qh3 Nd7=) 24...Ra8-/+ 25.Ba3 b4 (25...Rfd8 26.Re6 Nf6 27.Qh3+=) 26.cb4 Nf6 27.Qh3 Rfd8 28.Re6 Nd7 29.Rc1 Rdc8 (29...Rac8 30.Rd6 Nf8 31.Rd8 Rd8 32.Ba6 Ba6 33.Rc6=) 30.Re3 (30.Rec6 Bc6 31.Re1-/+) 30...Nf8+= 31.Rce1 Qf6 32.Qg3 h6 33.Nf7 Qf7-/+ 34.b5 Nd4 35.Bf8 Rf8 36.Bg6 Qf6 37.h4 Qf2 38.Qf2 Rf2 39.Kf2 Rf8 40.Kg1 ab5 41.Rg3 Bc8 42.Re7 Rd8 43.Kf2 b4 44.Ke3 Ne6 45.Bh5 Kh8 46.Rg6 d4 47.Kd2 Nf8 48.Rh6 Kg8 49.Bd1 Be6 50.Ree6 Ne6 51.Re6 Rb8 52.Bb3 Kg7 53.h5 Rf8 54.h6 (54.h6 Kh7 55.Kd3+-) 1–0. Winckelmann (2545) – Hernandez Molina (2565), Duenhaupt mem email, 2006. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.ab4 g6 6.Bb2 Bg7 7.d4 0-0 8.Nf3 (8.Be2 Qb6 9.b5 Rd8=) 8...Nbd7 (8...Qb6 9.b5=) 9.Bd3 Nb6 10.0-0 Nh5 11.Ne2 (11.d5 Nf4+=) 11...Bg4= 12.Ng3 (12.Ne1 Qc7=) 12...Nf4 13.c4 (13.h3 Be6=) 13...h5 (13...f5 14.ef5 d5 15.c5 Nd3 16.Qd3+=) 14.h3 (14.Re1 Nd3 15.Qd3 Bf3 16.gf3 e6=) 14...Be6 (14...Nd3 15.Qd3 Bf3 16.gf3 h4=) 15.c5 (better 15.Rc1!?+=) 15...Nd3=+ 16.Qd3 Bc4 17.Qa3 (17.Qc2 Bf1 18.Nf1 Nd7=+) 17...Bf1-/+ 18.cb6 Bb5 (18...Ba6 19.ba7 Qd7 20.d5=) 19.ba7= b6 20.d5 Bb2 21.Qb2 Qd7 22.Nd4 h4 (better 22...Rfc8!?=+) 23.Nh5 gh5 24.Qd2 f6 25.Qh6 (25.Ne6 Qe8+= (25...Ra7?? 26.Ra7 Qa7 27.Qh6 Qa1 28.Kh2 Qe5 29.f4 Qe6 30.Qg6 Kh8 31.Qh5 Kg7 32.de6+-)) 25...Qe8+= 26.Nb5 (26.Ne6!? Qf7 27.Nf8 Qf8 28.Qh5+=) 26...Qb5= 27.Qg6 Kh8 28.Qh5 Kg7 29.Qg4 Kf7 30.Qh5 Kg7 31.Qg4 ½–½. Tsvetkov,Pavel (2060) – Gorbushin,Maksim (2155), Satka RUS, Governor Cup, 2011. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.ab4 g6 6.Bb2 Bg7 7.Nd5 0-0=.

5.ab4 g6 6.Bb2 Bg7 7.h4 Ne4!-/+ 8.Bc4 (8.Ne4 Bb2 Pinning (8...Bb2 Deflection; 8...Bb2 Clearance)) 8...Nc3 (8...0-0 9.Ra2 Nc3 10.Bc3 Bc3 11.dc3-+) 9.Qf3 d5 (9...0-0 10.Bc3 Bc3 11.Qc3-/+) 10.Bc3 Bc3 11.Bd5?? (better 11.Bb5 Bd7 12.Qc3-/+) 11...Bf6 (better 11...Ba1 12.Bf7 Kf8 13.Bg6 Kg7 14.Qf7 Kh6-+) 12.Ra3 (12.Bb7 Qc7 13.Ba8 Qe5 14.Qe2 Qa1 15.Qd1 Qa2-+) 12...Nd7 (12...Qc7 13.c3-+) 13.Re3 (13.Bb7 Ne5 14.Qe4 Bb7 15.Qb7 Rb8-+) 13...Qb6 (13...Qc7 14.c3-+) 14.Ne2 (14.h5 e6-+) 14...0-0 (14...Qb4 15.Rb3 Qa5 16.Nc3-+) 15.h5 (15.Rb3 Rd8 16.Nc3 Ne5-+) 15...g5 (15...Qb4 16.Rb3 Qa5 17.Ra3-+) 16.Qe4 (16.Rb3 Ne5 17.Qg3 Rd8-+) 16...Kh8 (16...a5 17.Ra3-+) 17.f4 (17.0-0 e6 18.Bb3 Bg7-+) 17...Qd6 (17...e6 18.Bb3-+) 18.Bc4 (18.Rd3 Qa6 19.0-0 e6-+) 18...Qc6 (better 18...Qb4!? 19.c3 Qa4 20.Rf1-+) 19.Bd5 (19.Rf1 gf4 20.Nf4 Qe4 21.Re4 Nb6-+) 19...Qa4 20.0-0 Qa6 (20...gf4 21.Nf4 a5 22.Bc4-+) 21.c3 (21.Bc4 Qc6 22.Bf7 Qe4 23.Re4 gf4-+) 21...g4 (21...gf4 22.Nf4 Bg5 23.d4-+) 22.d4 (22.Bb3 Qc6-+) 22...Qd6 (22...e6!? 23.Bb3 Bg7 24.f5-+) 23.Bb3 Bg7 (23...Kg7 24.Ng3 Nb6 25.f5-+) 24.Ng3? (24.Qe7 Qf6-/+) 24...Nf6 (24...e6 25.f5 Bh6 26.Rd3-+) 25.Qd3? (better 25.Qe7!? Qc6 26.Bf7-/+) 25...Bd7 (25...a5 26.ba5 Ra5 27.Re5-+) 26.Bc2 (26.Ne4 Ne4 27.Qe4-+) 26...Qa6 (26...Rac8 27.Ne4 Ne4 28.Qe4-+) 27.c4? (better 27.Qa6!? ba6 28.Re7-+) 27...Rac8 (27...Rfc8 28.b5 Qa2 29.Bb3-+) 28.b5 Qd6?? (better 28...Qa2 29.Bb3 Qa3-+) 29.h6= Bh6 30.Nh5 Ne4 (30...Rg8 31.Nf6 Rg6 32.Nh5=) 31.Qe4+= (worse 31.Re4 Bf5-/+) 31...f5 (31...Qg6 32.Qe5 f6 33.Qe7 (worse 33.Bg6 fe5 34.Bd3 ed4 35.Re7 Bf5 36.Bf5 Rf5-/+) 33...Qc2 34.Qd7 Rc4 35.Ng3+=) 32.Qe7 (32.Qb7? Qd4 (32...Rc4?! 33.Bb3 Qd4 34.Bc4 Qe3 35.Kh1-/+) 33.Rfe1 Rc4-+) 32...Qe7 33.Re7 Be8 34.Ng3 Rc4 35.Bf5 Rd4?? (better 35...Bg7 36.Rb7 Rd4+=) 36.Rh7+- Kg8 37.Rh6 Bb5 38.Re1 (better 38.Rg6 Kf7 39.Re1+-) 38...Rfd8?? (38...Rf4 39.Rh5 Re8 40.Be6 Re6 41.Re6 Kf7+-) 39.Re7 (39.Be6 Kf8 40.Nf5 Rf4 41.Rh8) 39...Rd1 (39...Bc4 40.Rb7 Bf7 41.Ne4 Re4 42.Be4+-) 40.Kh2 Bc6 (40...R1d6 41.Rhh7 Kf8 42.Ref7 Ke8 43.Rfg7 Kf8 44.Nh5 g3 45.Kh3 Rh6 46.Rh6 Bc4 47.Rh8 Bg8 48.Rhg8) 41.Be6 Kf8 42.Rf7 (42.Rf7 Kg8 43.Rb7 Kf8 44.Rh8) 1–0. Tsvetkov,Pavel (2060) – Panov,Maksim (2045), Satka RUS, Governor Cup, 2011. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.ab4 g6 6.d4 Bg7 7.f4 0-0 8.Nf3 Bg4 9.Be3 (9.e5 Nh5=) 9...Bf3 (9...Qc7 10.Ra3=) 10.Qf3 e5 (10...Nc6!? 11.Ra4 a5=) 11.fe5+/- de5 12.d5 (worse 12.de5 Nfd7 13.Rd1 Ne5+=) 12...Nbd7 13.Bd3 Qe7 14.Rb1 (14.Ra7 Ra7 15.Kf2 b6-+; 14.Ba7? Qb4 15.Be2 Rfc8-+) 14...Ne8 15.0-0 Nd6 16.Nb5 (16.Bc5 a6+/-) 16...Nb5 (16...f5!? 17.Nd6 fe4 18.Qe4 Qd6 19.Rf8 Rf8+=) 17.Bb5+/- f5 (17...a6 18.Bd3 b5+/-) 18.Bd7 (better 18.d6 Qd8 19.ef5+-) 18...Qd7+= 19.c4 f4 (19...a5!?+=) 20.Bf2+/- g5 21.h3 (21.Qh5 g4+-) 21...Qf7 (21...Rf6 22.c5+/-) 22.c5 h5 23.b5 Qg6 Black plans g4 24.d6 (24.Qd3 g4+/-) 24...Rf7 (24...g4!? 25.Qd3 gh3 26.Qh3 Qe4 27.Qh5 a5+/-) 25.Qd3+/- g4 26.Rfd1 (26.hg4 Qg4 27.Be1 Rc8+-) 26...f3 27.g3 (27.c6 gh3 28.g3+=) 27...h4+= 28.Kh2 (28.gh4?? gh3 29.Kf1 h2-+) 28...Bh6 (better 28...hg3 29.Bg3 Qh5+=) 29.Rg1?? (better 29.c6 hg3 30.Bg3+/- (30.Kg3?? Bf4 31.Kh4 Rh7)) 29...Kh7?? (better 29...hg3 30.Rg3 Bf4-/+) 30.c6 (better 30.gh4!? Bf4 31.Kh1+-) 30...hg3+= 31.Rg3?? (better 31.Bg3 a6 32.d7+=) 31...Bf4-/+ 32.Rbg1 (32.hg4 A) 32...Bg3?! 33.Kg3 Rf4 34.Rh1 Kg7 35.Rh4-+ (35.cb7?? Qg4 36.Kh2 Qg2); B) 32...Qg4 33.Qf1 Bg3 34.Bg3 Rh8-+ (34...Qe4 35.Qh3 Kg8 36.Rg1-+)) 32...Qh5 (32...Rf6 33.d7 Rd6 34.Qa3 bc6 35.bc6-/+) 33.Kh1 bc6 34.bc6 Rf6 35.d7? (35.Qb5 Kh8 36.d7+=) 35...Rh6-+ (35...Bg3 36.Rg3 Rc6 37.d8Q Rd8 38.Qd8+-) 36.Qf1 Bg3 37.Rg3 Rc6 (37...gh3 38.c7 Rg6 39.d8Q Rg3 40.Bg3 Kg6 41.Qa6 Kh7 42.Qe7 Kg8 43.c8Q Qe8 44.Qee8 Kg7 45.Qag6) 38.Rg4? (38.Kh2 Qf7-+) 38...Rh6 (better 38...Rc1! 39.Qc1 Qh3 40.Kg1 Qg4 41.Kf1 Rd8-+) 39.Rh4 Qg5 40.Rh6 Kh6 0-1. Riehle,Marco (2345) - Gupta,Ab (2610), Titled Tuesday, 2021. (=1.e4 c5 2.a3 d6 3.b4)

4.Nc3 Nc6

5.Rb1 cb4 6.ab4 e5 (6...d5 7.ed5 Nd5 8.Nf3 Ndb4 9.Bb5=+) 7.Nf3 Bg4 8.h3 Bf3 9.Qf3 Be7 10.Bc4 0-0 11.0-0 Nd4 12.Qd1 Rc8 13.Ba2 b5 (13...Qd7 14.Re1=) 14.Bb2 g6 15.Rc1 a5 (15...Nc6 16.Ba3=) 16.ba5+= b4 (16...Qa5 17.Nd5 Nd5 18.Bd5+=) 17.Nd5+- Nd5 (17...Ne4?? 18.Bd4 ed4 19.Qe1+-) 18.Bd5 (worse 18.ed5 Qa5 19.Bd4 Qa2-/+ (19...ed4?! 20.Bb3=)) 18...Qa5 19.Ra1 Qb5 20.Ra7 Ne2 (20...Bf6 21.Bd4 ed4 22.Qf3+-) 21.Kh2 Bd8 (21...Nf4 22.Re7 Rc2 23.Rb7+- (worse 23.Qc2 Qf1 24.Kg3 Qg2 25.Kh4 g5)) 22.Rb7 Qa6 23.Rb4 Nf4 24.Bb3 Ba5 25.Ra4 Qb5 26.d3 Bb6 (26...Ra8 27.Qf3 Ne6 28.Rfa1+-) 27.Bc1 Rc7 (27...Ra8 28.Ra8 Ra8 29.Qf3+-) 28.g3 (28.Qf3 Ra7 29.Ra7 Ba7+-) 28...Ne6 29.Bh6 Nd4? (29...Rb8 30.Qf3+-) 30.Rd4 (better 30.Bf8!? Kf8 31.Ra2+-) 30...ed4+- (30...Bd4 31.Qf3 Qd3 32.Qf6 Qg3 33.fg3 Bg1 34.Kg1 Rc2 35.Qg7) 31.Bf8 Kf8 32.Qf3 Kg7 33.Ra1 Qe5 34.Ra8 Qe7 35.Ba4 Ra7 36.Re8 (better 36.Ra7 Qa7 37.Bb3+-) 36...Qb7?? (36...Qc7 37.g4 Ra5+- (37...Ra4?? 38.g5 Qd8 39.Rd8 Bd8 40.Qf4+-)) 37.Qf4+- Qc7 (37...Ra4 38.Qd6 Bc5 39.Qc5 Qb4 40.Qe5 Kh6 41.Qf6 Qc5 42.Rg8 Qg5 43.Qg7 Kh5 44.Qh7 Qh6 45.Qf7 Qg5 46.Qf3 Kh6 47.Rh8 Kg7 48.Qf8) 38.Bb5?? (38.g4 h6 (38...Ra4?? 39.g5 Qd8 40.Rd8 Bd8 41.e5+-) 39.h4 Bc5+- (39...Ra4 40.g5 hg5 41.hg5+-)) 38...Ra5?? (better 38...Qc5!? 39.Bc4 Qc6=) 39.Bc4 (better 39.g4!? Rb5 40.g5 Rg5 41.Qg5 Qc2 42.Kg2+-) 39...Re5 40.Ra8 Re7 (40...Ra5 41.Ra5 Ba5 42.Qg5+-) 41.h4 Qc5?? (41...h5 42.Kg2+-) 42.Ra6 (better 42.Bd5 h6 43.h5 g5+-) 42...Bc7?? (42...Rd7 43.Bd5 h5 44.Ra8+-) 43.Kg2 (better 43.Bd5 Bb8 44.Rc6+-) 43...h6 44.Qf3 Qe5 45.Bd5 Qf6 (45...Bd8 46.Ra8 Bb6 47.Qg4+-) 46.Qg4 Bd8 47.h5 g5? (better 47...Rc7 48.Bb3 Qe7+-) 48.f4 Rc7 49.Bb3 (better 49.e5 Qe7 50.Rd6 Qf8+-) 49...Qe7 50.fg5 (50.Ra4 Qd7 51.Qf3 gf4 52.Rd4 fg3+-) 50...hg5 (50...Qg5 51.Qg5 Bg5 52.Rd6+-) 51.Ra1 Rc5 (51...Kh6 52.Bc4+-) 52.Rf1 f6 53.h6! Kh7 (53...Kh6 54.Rh1 Combination) 54.Ra1 f5 55.ef5 Re5?? (better 55...Qf6 56.Ra7 Be7+-) 56.Be6 Re3 (56...Qb7 57.Kh2 Kh6 58.Qh3 Kg7+-) 57.Qh5 Qb7 (57...Re6 58.fe6 Qe6 59.Ra7 Kh8 60.h7+-) 58.Kh3 g4 (58...Re6 59.fe6 Qe7 60.Re1+-) 59.Qg4 Re6 60.fe6 Kh6 61.Rf1 Bg5 62.Qf3 (better 62.Kh2 Qc7 63.Rf5 Qg7 64.Rf7 Qf7 65.ef7 Kg7 66.Qg5 Kf7 67.Qd5 Ke7 68.g4 Kd7 69.g5 Kc7 70.g6 Kd7 71.g7 Ke7 72.g8Q Kd7 73.Qb7) 62...d5 (62...Qf3 63.Rf3 Kg6+-) 63.Qf8 (63.Kg4 Qe7 64.Qf7 Qf7 65.Rf7 Kg6 66.Rg7 Kg7 67.Kg5 Kf8 68.Kf6 Ke8 69.g4 Kd8 70.g5 Kc7 71.e7 Kd6 72.g6 Kc5 73.e8Q Kb4 74.Qb8 Kc3 75.g7 Kc2 76.g8Q Kd3 77.Qb3 Kd2 78.Qg1 d3 79.Qb2) 63...Kg6 64.Qf7 (64.Qf7 Qf7 65.ef7 Be7 66.f8R Kh6 67.R8f7 Bd8 68.Rd7 Bg5 69.Kg4 Kg6 70.Rd6 Bf6 71.Rdf6 Kg7 72.Kg5 Kg8 73.Kg6 Kh8 74.Rf8; 64.Qe8 Kh6 65.Rf7 Qf7 66.ef7 Bf6 67.f8Q Kg5 68.Qff7 Be5 69.Qg6) 1–0. Sale,Srdjan (2400) – Arandjelovic,Aleksandar Z (1965), Zagreb Open A, 2013. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

5.Rb1 d5 6.ed5 Nd5 7.Nd5 Qd5 8.bc5+=.

5.Rb1 g6 6.Bb5 Bd7 (6...cb4 7.ab4 Bg7 8.Nf3=) 7.Nge2 (7.bc5 dc5 8.Bb2 Nd4=) 7...Bg7 8.0-0 0-0 9.d3 (9.bc5 dc5 10.f4 Nd4 11.Bd7 Qd7=) 9...a6 (9...cb4 10.ab4 a6 11.Bc4=) 10.Bc6 Bc6 11.Be3 (11.Nf4 cb4 12.ab4 a5=) 11...Ng4 12.Bg5 (12.Bf4 cb4 13.Rb4 b5=) 12...h6 13.Bd2 e5 (13...cb4 14.Rb4 Rc8 15.Nd5=) 14.f3 Nf6 15.bc5 dc5 16.Be3 (16.Qc1 g5+=) 16...Qe7 (16...b6 17.Qe1=) 17.Qe1 (17.Qc1 Kh7+=) 17...b5= 18.Qh4 g5 (18...Rfe8 19.Nc1=) 19.Qf2+= Nd7 20.Ng3 Rfc8 (20...Rfb8 21.Nf5 Qf8 22.h4+=) 21.Nf5 Qf8 (21...Qf6 22.Ng7 Kg7 23.Ne2+= (23.Bc5?! Nc5 24.Qc5 Be4=+)) 22.h4 f6 23.hg5 (23.Qg3 b4 24.hg5 fg5 25.Ng7 Kg7+=) 23...fg5 24.Ne2 Qf6 (24...c4 25.dc4 bc4 26.Rb4+=) 25.c4 (25.Ng7 Qg7 26.Ng3 Qf6+-) 25...Bf8+= 26.Nc3 b4 (26...Rab8 27.Qg3+=) 27.Nd5 Bd5 28.cd5 a5 29.ab4 (29.Qg3 a4+=) 29...cb4= 30.d4 a4 31.de5 Ne5 (31...Qe5 32.Bd4 Qc7 33.Rfd1=) 32.Bd4+= Rc4 (32...Re8 33.Qg3 Kh7 34.Rbc1+-) 33.Qb2 (33.Rbc1 Rac8 34.Rc4 Rc4+-) 33...Re8 34.Rbc1 Bc5 (34...Rc1!? 35.Rc1 a3+=) 35.Bc5+- Nf3 36.Rf3 (better 36.gf3 Qb2 37.Rc4+-) 36...Qb2= 37.Rc4 Re4 38.Re4 (better 38.Bd4!? Rd4 39.Rd4+=) 38...Qb1= 39.Rf1 Qe4 40.d6 Qc4?? (40...Kh7 41.d7 Qd5 42.Bd6+- (42.Bb4 Qd7 43.Rf2 Qd3-/+)) 41.Ne7?? (41.Bd4 Kh7 42.Re1+-) 41...Kh7?? (better 41...Kg7 42.Be3 Qd3=) 42.Bb6+- Qe6 43.Kh1?? (better 43.d7 Qb6 44.Kh1+-) 43...Qd6 44.Rf7 Kh8 45.Bg1 ½–½. Mladenov,Plamen (2375) – Kolev,Atanas Tonchev (2035), Sofia BUL, Asenova–Ivanova Memorial, 2010. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

5.Rb1 g6 6.bc5 dc5 7.Bc4 Bg7 8.d3 0-0 9.Nge2 a6 10.a4 Nd7 11.0-0 Nde5 12.Ba2 Nb4 13.Bb3 a5 14.f4 Nec6 15.Nb5 b6 16.Bc4 Be6 17.Be6 fe6 18.Rf3 c4 19.d4 e5 20.d5 e6 21.Ba3 ed5 22.ed5 e4 23.Rh3 Qd5 24.Qd5 Nd5 25.Bf8 Bf8 26.c3 Bc5 27.Kh1 Rf8 28.Rd1 (28.g3 Rd8 29.Rh4 Ne3=+) 28...Nf6 (28...Nf4!? 29.Nf4 Rf4-/+) 29.Nbd4= Rd8 30.Rg3 Kf7 31.h3 Ne7 32.Rb1 h6 33.Rb5 (33.Re1 Nfd5=+) 33...Nfd5 (33...Nf5 34.Nf5 gf5 35.Nd4-/+) 34.Rg4? (better 34.Kh2-/+) 34...Ne3 35.g3 (35.Rg3 N7f5 36.Re3 Ne3-+) 35...N7f5 36.Rb1 Bd4 37.cd4 Ng4 38.hg4 Nd4 39.Nd4? (better 39.Rd1 Ne6 40.Rd8 Nd8 41.Nc3-+) 39...Rd4 40.Rb6 Rd2 0–1. Cabarkapa,N (2450) – Markovic,Miros1 (2445), TCh–SRB Premier (1), 2018. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

5.Rb1 g6 6.Nf3 Bg7 7.h3 (7.bc5 dc5 8.Bc4 0-0=) 7...0-0 8.g3 (8.bc5 d5 9.Bd3 d4=) 8...e6 (8...d5!? 9.b5 Na5 10.ed5 Nd5-/+) 9.Bg2+= cb4 10.ab4 e5 11.0-0 h6 (11...Be6 12.d3=) 12.Re1 Qb6 13.Na4 Qb5 (13...Qa6 14.Nc3 Qb6 15.Na4=) 14.Nc3 (14.c3 Nb8+/-) 14...Qc4 (14...Qb6!?=) 15.Bf1+= Qe6 16.Nb5 Qe7 17.d4 a6 18.de5 (18.Nc3 Qc7 19.d5 Nb4=) 18...de5 19.Nc3 Rd8 20.Nd5 Qf8 (20...Nd5 21.ed5 e4 22.c4 Nb4 23.Bb2 Bb2 24.Rb2=) 21.c3 (21.Bh6 Nd5 22.Bg7 Kg7 23.ed5 Nb4 24.Ne5 f6+=) 21...b5 (21...Nd5 22.ed5 Bf5 23.Rb3+=) 22.Nf6 (22.Bh6!? Bh6 23.Nf6 Kg7 24.Nd5+/-) 22...Bf6= 23.Qc2 Be6 24.Be3 Rac8 25.Qb2 g5 (25...Kg7 26.Ra1 Ra8 27.Kg2=) 26.Nd2+= Qg7 27.Nb3 Be7 28.Bc5 (28.Nc5 Bc5 29.bc5 Qg6+=) 28...Bb3 29.Be7 Ne7 30.Qb3 Rd6 31.Red1 Rdc6 32.Rbc1 h5 (32...Qg6 33.Qa3 Qe6 34.Rd3+=) 33.Rd7+/- Ng6 34.c4 Nf8 35.Ra7 Ne6 (35...h4 36.c5+/-) 36.c5 (36.Qa2 Nd4+/-) 36...Qg6 37.Qe3 (37.Qd5 Nd4+/-) 37...Rd8 38.Ra1 Nd4 (38...Rd4 39.R1a6 Re4 40.Qd2 (40.Rc6 Re3 41.fe3 Qe4 42.Rc8 Kg7-+) 40...Ra6 41.Ra6+/-) 39.R1a6!+/- Ra6 40.Ra6 Qg7? (better is 40...Nf3 41.Qf3 Qa6 42.Qh5 f6 43.Qg6 Kf8 44.Qh6 Kg8+/-) 41.Rb6 f6 (41...g4 42.h4 Nf3 43.Kg2 Rd1+-) 42.Bb5 Nb5 (42...Qf7 43.c6 Rc8 44.Qc3+-) 43.Rb5 Qd7 44.Qb3 Kh8 (44...Kg7 45.Rb6 Qc8 46.Qf3+-) 45.Qd5! Qe8 (45...Qd5 46.ed5 Passed pawn) ½–½. Salim,Djaffer – Hamira,Abdelatif (1915), 3rd President ALG Open, 2015. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Rb1 g6 6.g3 (6.bc5 dc5 7.Bb5 Bd7=) 6...Bg7 7.Bg2 0-0 8.Nge2 e5 (8...cb4 9.ab4 a5 10.ba5 Ra5 11.0-0=) 9.0-0= Ne8 10.d3 cb4 11.ab4 Nc7 12.Be3 Nd4 13.Qd2 Bh3 14.f3 (14.f4 Bg2 15.Kg2 Ne2 16.Ne2 d5+=) 14...Bg2= 15.Kg2 d5 16.Na4 (16.ed5 f5=) 16...Ne2+= 17.Qe2 d4 18.Bd2 Nb5 19.Rfc1 Rc8 20.c4 dc3 21.Bc3 Bh6 22.Bd2 Bd2 23.Qd2 Qd4 24.Nc5 b6 25.Nb3 Qd6 26.Rc8 Rc8 27.Rc1 Rc1 28.Nc1 Qc7 (28...Nd4 29.f4+=) 29.Ne2= a5 30.ba5 ba5 31.Qb2 Qc5 32.f4 Nd4 33.Nc3 Qb4 34.Qb4 ab4 35.Nb1 Kf8 36.Kf2 f6-/+ 37.fe5 fe5 38.Ke3 Ke7 39.Kd2 Nf3 40.Kc2 Nh2 41.Nd2-/+ Kd6 42.Nc4 Ke6 43.Ne3 Nf3 44.Kb3 Ne1 45.Kc4 b3! 46.Nd1 h5 47.Kb3 Nd3-+ 48.Kc2 Nc5 49.Nf2 g5 50.Kd2 g4 51.Ke3 Kf6 52.Ke2 Kg5 53.Kf1 h4 54.Kg2 Kh5 55.Kh2 Nd7 56.Nd3 hg3 57.Kg3-/+ Kg5 58.Kf2 Kh4 59.Kg2 g3 60.Ne1 Kg4 61.Nd3 Kh4 ½–½. Korostenski,F (2190) – Vesselovsky,S (2375), Karvina Open, 2011. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.b5 Nd4 6.Nge2 Bg4 7.h3 (7.f3 Bd7=) 7...Bh5 (7...Bf3 8.d3=+) 8.d3 (8.f4 e5 9.g4 Nd7+=) 8...e6=+ 9.Bd2 (9.Qd2 d5=+) 9...d5 10.Be3 Ne2 11.Be2 Be2 12.Ne2 (12.Ke2? d4-+) 12...de4 13.0-0 Be7 14.Ng3 (14.de4 Ne4 15.c4 Bf6-/+) 14...ed3 15.cd3 0-0 16.Qf3 Qd5 17.Qe2 Rfd8 18.Rfd1 Bd6 19.a4 Rac8 20.Rac1 Be5 21.Rc4 b6 (21...Bg3 22.fg3 b6 23.g4-/+) 22.Ne4 (22.f4 Bc7-/+) 22...Ne4-+ 23.Re4 Bf6 (23...c4 24.Bb6 cd3 25.Qe3-+) 24.Rf4 (24.Rc4 Rc7-+) 24...c4! 25.d4 (25.dc4 Qd1 Double attack (25...Qd1 Pinning; 25...Qd1 Deflection); 25.Rc4 Rc4 Combination) 25...c3 26.Rc1 e5 27.de5 (27.Rf6 gf6 28.Qg4 Kf8 29.de5 c2 (29...Qe5?! 30.Re1=) 30.Bh6 Ke8 31.Qg8 Kd7 32.Qh7 fe5-+) 27...Be5 (27...Qe5?! 28.Qc2-/+) 28.Rf5? (28.Rb4-+) 28...Bh2!! 29.Kh2 Qf5 30.Rc2 (30.Qa2 c2 31.Qa1 Rd3-+) 30...Qd3 (30...Qe4 31.g3-+) 31.Qd3 Rd3 32.Kg3 Rd1 33.a5 (33.Kf3 Ra1-+) 33...Rb1 (better 33...ba5!? 34.Kf3 Rd5 35.Ke2-+) 34.ab6 ab6 35.Bb6 Rb2 36.Rc1 c2 37.Be3 Rb5 38.Kf3 Rb1 39.Ke2 Rc1 40.Bc1 Rd8 41.Bd2 f5 42.f3 Kf7 43.g3 h6 44.Ke3 (44.h4 Kg6 45.Bc1 Rd1-+) 44...g5 (44...f4!? 45.gf4 Rd2 46.Kd2-+) 45.Ke2 f4! 46.g4 (46.gf4 Kf6 Combination) 46...Ke6 47.Ke1 Kd5 48.Ke2 White threatens to counter with Kc4 48...Kc4 49.h4 Kb3 50.hg5 hg5 (50...hg5 51.Ke1 Rh8-+) 0-1. Riehle,Marco (2345) - Isajevsky,A (2400), Titled Tuesday 6th Apr, 2021. (=1.e4 c5 2.a3 d6 3.b4)

5.b5 Nd4 6.Nf3 Bg4 =.

5.b5 Nd4 6.g3 g6 7.Bg2 Bg7 8.Rb1 0-0 9.Nce2 e5 10.c3 Ne2 11.Ne2 Be6 12.Qc2 d5 13.d3 de4 14.de4 Bc4 15.Qa4 (15.Rb2 Qa5-/+) 15...Qd3 16.Rb2 Ne4 17.0-0 (17.Qc2 Qc2 18.Rc2 Bd3-/+) 17...Rfd8 18.Be3 Bf8 19.Nc1 (19.Rc1 a6 20.b6 Rac8-/+) 19...Nc3 (19...Qc3!? 20.Rc2 Bf1 21.Bf1-+) 20.Qa5-/+ b6 21.Nd3 ba5 22.Ba8 Bd3 (22...Ra8?! 23.Rc1 (23.Nc5?? Bf1 24.Kf1 Nd1-+; 23.Ne5 Bf1 24.Kf1 Rd8+=) 23...Bd3 24.Rc3+=) 23.Rd2 (23.Bc6 Bf1 24.Kf1 Rd3-+) 23...c4-+ (23...Bf1? 24.Rd8 Kg7 25.Kf1 Nb5 26.Bd5+-) 24.Bc6 Be7 ½–½. Raider,E (1895) – Nugel,K (2055), St Pauli Open, 2011. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.Bb5 Qb6 6.Nf3=.

5.Bb5 Bd7 6.bc5= dc5 7.Bb2 (7.Nf3 g6=) 7...a6 (7...Nd4 8.a4=) 8.Bd3 Ne5 (8...e6 9.f4=) 9.Be2 (9.Nf3 Nd3 10.cd3 e6=) 9...Ng6 (9...e6 10.Nh3=) 10.d3 (10.Nf3 Bc6=) 10...e5 (10...e6 11.Nf3=) 11.h4 (11.Nf3 Qb6 12.Bc1 h6=) 11...Bd6=+ 12.g3 h6 13.Nf3 (13.Nd5 c4 14.Nf6 Qf6=) 13...b5 (13...Be6 14.0-0=+) 14.Qd2 (14.Nd5 Nd5 15.ed5 0-0=) 14...Qc7=+ 15.Nd1 Rc8 (15...0-0 16.Ne3=+) 16.Qc3 a5 Black prepares b4 17.Ne3 (17.Kf1 0-0=+) 17...Ne7= 18.0-0 (18.a4 b4 19.Qb3 0-0=+) 18...0-0=+ 19.a4 (19.Rfe1 Be6=+) 19...b4 20.Qe1 (20.Qb3!?=+) 20...Bh3-/+ 21.Ng2 (21.Nh2 Bf1 22.Kf1 h5-/+) 21...Nc6 (21...c4 22.dc4 Ne4 23.Bd3-/+) 22.Nd2 Nd4 (22...Rfd8 23.Kh2 Qd7 24.Nc4=+) 23.Bd1 (23.Qd1 h5-/+) 23...Nd7 (23...Qc6 24.Nc4-/+) 24.Kh2 (24.c3 bc3 25.Bc3=+) 24...Bg2 (24...Be6!?-/+) 25.Kg2= Nb6 (25...Qc6 26.Nc4 Bc7 27.c3 bc3 28.Bc3=) 26.c3 Nc6 (26...Ne6 27.Bb3=) 27.Bb3 (27.Qe3 Nd7=) 27...Rfd8 (27...Nd7 28.Nc4=) 28.Nc4 (28.Qe3 Nd7=) 28...Bf8 (28...Nc4 29.Bc4 Rb8 30.Qd1=) 29.Rd1 (29.Qe2 Nc4 30.Bc4 Be7=) 29...Nc4 30.Bc4 (worse 30.dc4 Qb6 31.Ba1 Rb8=+) 30...Rd6 (30...Rb8 31.Rb1=) 31.Qe3 (31.Qe2 Rf6=) 31...Rcd8 (31...Rf6 32.f4=) 32.f4+= (32.Qc5? Rd3 33.Qf8 Kf8 34.Rd3 Rd3 35.Bd3 Qd6-+) 32...R6d7 33.cb4 ab4 34.Rd2 (34.Bb5 ef4 35.Qf4 Qf4 36.Rf4 Rc7+=) 34...Bd6= 35.Kh3 (35.fe5 Ne5 36.Bd5 Rb8+=) 35...Rf8 (35...Qc8 36.Kh2=) 36.f5= Kh7 (36...Be7!?=) 37.f6+= Nd4? (better 37...g6+=) 38.fg7+- Rg8 (38...Kg7 39.Rdf2 f5 40.ef5 Rf6+-) 39.Rff2?? (better 39.Rf6 Rg7 40.Qh6 Kg8 41.Rdf2+-) 39...Kg7 (better 39...Qd8+-) 40.Rf6?? (better 40.Rd1 Kh7 41.Rdf1+-) 40...Kf8 (better 40...Kf6 41.Qh6 Ke7-+) 41.Qh6+- Ke8 42.Rf7 (42.Rf7 Rf7 43.Bd4 Rg3 44.Kg3 ed4 45.Kg2 Rg7 46.Kf1+-) 1–0. Zvan,Ziga (2200) – Gruskovnjak,Tomislav (2290), It Open Kranj SLO, 2005. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

5.Bc4 e6 6.Nf3 cb4 7.ab4 d5 8.ed5 ed5 9.Bb3 (9.Qe2!? Be6 10.b5=+) 9...Bb4-/+ 10.0-0 0-0 11.h3 Bf5 12.Re1 d4 13.Ne2 Ne4 14.Bb2 d3 15.cd3 Nc5 16.d4? (better 16.Ned4!? Bd3 17.Bc2-/+) 16...Nd3-+ (16...Nb3?! 17.Qb3 Be6 18.Qd3=+) 17.Qc2 (17.Qb1 Bg6-+) 17...Bg6 (17...Qf6 18.Ng3 Ne1 19.Qf5 Nf3 20.gf3 Qf5 21.Nf5-+) 18.Rf1 Re8 (18...Nde5! 19.Qd1 Nf3 20.gf3 Qg5 21.Kh2 Bd6 22.Ng3-+) 19.Ng3 Nb2 (19...Qf6!? 20.Bd5-/+) 20.Qb2-/+ Be7 (20...Qd6 21.Ba4 a5 22.Rfc1-/+) 21.Bc4 (21.Ba4 Rb8 22.Bc6 bc6=) 21...b6 (21...Bf6 22.Qb7 Nd4 23.Nd4 Bd4 24.Ra6=+) 22.Rfe1 (22.Bb5 Qd6=) 22...Bf6=+ The pressure on the isolated pawn grows 23.Re8 Qe8 24.Bd5 Nd4 25.Nd4 Rd8 26.Bc6 Qe5 (26...Qe7 27.Nge2 Qe2 28.Ne2 Bb2 29.Ra7=+) 27.Ra7= h5 (27...Qd4!? 28.Qd4 Bd4=) 28.Qb6+= Rd4 29.Nf1 Rd6 (29...Kh7 30.Ra8+=) 30.Qb8 Kh7 31.Bb5 (31.Ra8 Bd3 32.Ra5+=) 31...Be4 (31...Qd4 32.Ra4 Qc5 33.Rc4+=) 32.Ra3 (32.Rf7!? Re6 33.Rf8 Qb8 34.Rb8 h4+-) 32...h4 (32...Rd4 33.Qe5 Be5 34.d3+=) 33.Be2 (33.Re3 Re6 34.Qe5 Re5 (34...Be5?? 35.Re4 Bf6 36.Ne3+-) 35.Re4 Rb5+/-) 33...Qg5 (33...Rd4 34.Qe5 Be5 35.Bf3+=) 34.Bf3 Bf3 35.Rf3 Re6 36.Qb1 g6 37.Qd1 Kg7 (37...Qe5 38.Ne3+=) 38.Qb3 (38.d4 Rd6 39.Rd3 Qf4+/-) 38...Ra6 39.Qd3 Ra1 40.Qe2 Qd5 41.Qd3 Qd3 (41...Qg5!?=) 42.Rd3+= Be5 43.g3 hg3 44.fg3 f5 45.Kg2 Kf6 46.Rb3 (46.Ne3 Ra4+=) 46...g5 Black prepares f4 (46...Bd4 47.Ne3+=) 47.Rb6 Kf7 48.Ne3 f4 49.Ng4 Bd4 50.Rd6 (better 50.Nh6!? Ke8 51.Rb8 Kd7 52.Nf5+/-) 50...Rg1= 51.Kf3 Rg3 52.Ke4 Ba1 53.Kf5 f3 54.Rd7 Ke8 55.Ra7 (better 55.Rd3+=) 55...f2?? (better 55...Bd4 56.Ra5 Bb6 57.Re5 Kd7=+) 56.Ra1 (better 56.Ke6 Kd8 57.Ra1 Rh3 58.Nf2 Rh4+-) 56...Rf3 (56...Rg1 57.Ra8 Kd7 58.Nf2+-) 57.Kg5 (better 57.Ke6 Kd8 58.Rf1+-) 57...f1Q 58.Rf1 Rf1 59.h4 Rd1 60.h5?? (better 60.Nf6!? Ke7 61.Ne4+-) 60...Kf7 (better 60...Rd2!? 61.h6 Rd5 62.Kh4 Kf7=+) 61.Ne5+/- Kg7 62.Nf3 Kh7 63.Ne5 Rd2 64.Ng4 White plans h6 64...Rd5 65.Kh4 Kg7 66.h6 (66.Nf2 Rh5 67.Kh5=) 66...Kg6=+ 67.h7 (67.Kg3 Kg5 68.Kf3 Rd3 69.Ke4 Rd1=+) 67...Rd8 68.h8Q (68.Ne5 Kh7 69.Kg4 Kg7=+) 68...Rh8-/+ 69.Kg3 Kf5 70.Nf2 Rb8 71.Kf3 Rb3 72.Ke2 Kf4 (72...Ke5 73.Ng4 Ke4 74.Nf6 Kf5 75.Nd5-/+) 73.Nd3=+ Kf5 74.Nf2 Ra3 75.Nd3 Ke4 76.Nf2 Kd4 77.Kf1 (77.Ng4 Rg3 78.Nf2 Rc3-/+) 77...Ke3 78.Nd1 Kf3 79.Ke1 Ra2 80.Nc3 Rc2 81.Nd1 Rc4 (81...Re2 82.Kf1-/+) 82.Nb2 Rc2 83.Nd1 Ra2 84.Nc3 Rh2 85.Nd1 Ke4 86.Nf2 Kf4 87.Nd1 Kf3 88.Nc3 Rc2 (better 88...Rg2!?-/+) 89.Nd1= ½-½. Riehle,Marco (2345) - Kuzubov,Y (2640), Titled Tuesday, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.bc5!? dc5 6.Bb5 =.

5.Nf3 cb4 6.ab4 Nb4 7.Ra4+=.

5.Nf3 cb4 6.ab4 Nb4 7.Bb5 Bd7 8.Bd7 Qd7 9.Ba3+=.

5.Nf3 Nd4 6.bc5 dc5 7.e5 Nd5 (7...Nd7 8.Bb2=) 8.Bb2 a6 9.Nd4 cd4 10.Ne2 d3 11.cd3 b5 12.g3 Bb7 13.Bg2 Nb4 14.ab4 (worse is 14.Bb7 Nd3 15.Kf1 Qb6-/+) 14...Bg2 15.Rg1 Bf3 16.Qb3 e6 17.Nd4 Bd5 18.Qc3 Rc8 19.Qa3 Bb7 20.Qb3 Be7 21.f4 0-0 22.Ke2 Qd7 23.Rgc1 Bd5 24.Qa3 Ra8 25.Bc3 (25.Nb3!?+=) 25...a5!-/+ 26.Qb2 a4 27.Rf1 Bd8 28.Nc2 Bb6 29.Bd4 Bc7 30.Bc5 Rfd8 31.Nd4 Bb7 32.Rf2 Ra6 33.Qc3 Bb6 34.Nc2 Bd5 35.d4 Bc4 36.d3 Bb3 37.Ne3 Bc5 38.dc5= Qd4 39.Kd2 Qd7 40.Rff1 Rc6 41.Rfc1 Bd5 42.Ke2 Rcc8 43.Rf1 Bb7 44.f5 Qd4? 45.Qd4+- Rd4 46.fe6 fe6 47.Rf4 Rcd8 48.Rd4 Rd4 49.Nc2 Rd5 50.d4 Rd8 51.Rd1 Kf7 52.Ke3 Kg6 53.Rf1 Bc6 54.Kd3 Ra8 55.Na3 Rd8 56.Rf4 Rb8 57.Kc3 Rd8 58.Kb2 Rb8 59.Nc2 Rd8 60.Ne3 h6 61.h4 Kh7 62.Kc3 Ra8 63.Nc2 a3 64.Rf1 a2 65.Kb2 Ra4 66.Re1 Bd5 67.Ka1 Kg8 68.Re3 Ra8 69.Na3 Rf8 70.Re1 Bc6 71.Ka2 Rf2 72.Kb1 Rf3 73.Nc2 Rg3 74.d5 Bd5= 75.Rd1 Rb3 76.Kc1+= Kf7 77.Rd4 g5 78.hg5 hg5 79.Kd2 Ke7 80.Rg4+/- Bf3 81.Rg5+- Be4 82.Rg7 Kd8 83.Rg4 Bc2 84.Kc2 Re3 85.Rd4 Kc7 86.Rd6 Re5 87.Rb6 Re3 88.Rb5 e5 89.Rb6 e4 90.Ra6 Rf3 91.Re6 Re3 92.b5 Re2 93.Kc3 Re1 94.Kd4 Rb1 95.b6 Kb7 96.Re4 Rd1 97.Kc4 Rc1 98.Kb5 Rb1 99.Kc4 Rc1 100.Kd5 Rd1 101.Rd4 Rc1 102.Kd6 Rc2 103.Rd5 Rc1 104.Kd7 Rc2 105.Kd8 Kb8 106.Rf5 Rc1 107.Ke7 Kb7 108.Kd6 Rd1 109.Ke5 Kc6 110.Ke4 Rd7 111.Re5 Rd1 112.Ke3 Rd7 113.Ke2 Rd8 114.Kf3 Rd1 115.Kg4 Rd7 116.Kf5 Rd1 117.Ke6 Rd2 118.Ke7 Rd7 119.Ke8 Rh7 120.Kd8 Rh6 121.Re8 Kb7 122.Re7 Kb8 123.Ra7 Rb6 124.Ra1 Rb2 125.Kd7 Rd2 126.Kc6 Rh2 127.Re1 Rh6 128.Kb5 Kc7 129.Re7 Kc8 130.c6 Rh1 ½–½. Howell,Chris I (2055) – Moss,Guy (2015), Torquay ENG, 2013. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.Nf3 e6 6.Bb5 cb4 7.ab4 Bd7 8.0-0 (8.Ba3 Qb6 9.Ba4 Be7=) 8...a6 (8...Nb4 9.Bd7 Qd7 10.Ba3+=) 9.Bc6= Bc6 10.d3 Be7 11.Rb1 0-0 12.b5 ab5 13.Nb5 Nd7 14.c4 Nc5 15.Nfd4 Bf6 16.Bb2 Qd7 (16...Ra2 17.Nc6 bc6 18.Bf6 Qf6 19.Nd6+=) 17.Nc6+= bc6 18.Bf6 gf6 19.Nc3 Ra3 20.Rc1 (20.Qd2 e5+=) 20...e5= 21.Qd2 (21.f4 Rfa8=) 21...Rfa8 22.Rcd1 (22.Rb1 f5=) 22...Nb3 (22...Qa7 23.Qc2+=) 23.Qh6 Qe6 24.Ne2 Qg4 25.Ng3 Qg6 (25...Qg5 26.Qh3 Nd2 27.Rfe1=) 26.Qh3+= Nd4 27.f4 Ra2 28.fe5 fe5 29.Nh5 Rb2 (29...Ne2!? 30.Kh1 Kh8=) 30.Rf6+= Qg5 31.Rd6 Kh8 32.Kh1 Rg8 (32...Rd2 33.Rg1+=) 33.Ng3 (33.Nf6!? Qg2 34.Qg2 Rgg2 35.Rd8 Kg7 36.Rg8 Kf6 37.Rg2 Rg2 38.Rf1 Rf2 Ne6 34.Rg1 Nf4 35.Qf5 Qf5 36.ef5 Rd2 37.Rc6 Nd3 38.Rf1 Nf4 39.Rc7 f6 40.Rf4?? ef4-+ (40...ef4 41.Kg1 fg3 42.hg3 Rg3-+) 0–1. Krajina,Ales (2225) – Marikova,Jana (2075), Ostrava CZE, Ostravsky Konik, 2014. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.f4 cb4+= 6.ab4 Nb4 7.Ra4 a5 8.Bb5 Bd7 9.Qe2 (9.d3!?-/+) 9...Nc2-+ 10.Kd1 Nb4 11.Ba3 Nc6 12.e5 Bg4 13.Nf3 de5 14.fe5 Nd5 15.Nd5 Qd5 16.Rg4 Qb3 17.Ke1 Qa3 18.Bc6 bc6 19.Qc4 Rc8?? (better is 19...Kd7+=) 20.Qa6+- Rd8 21.Qc6 (21.Qc6 Rd7 22.Ra4 Qa4 23.Qa4+-) 1–0. Jensen,Soeren (1890) – Sanchez Roempler,Carlos (1910), IECG, 2005. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.f4 e5 6.Nf3 (6.Bb5 ef4 7.Nge2 cb4 8.ab4 Bg4=+) 6...Bg4 (6...ef4 7.Bb5 cb4 8.ab4=+) 7.Bb5 (7.h3 Bf3 8.Qf3 a6=+) 7...cb4 (7...ef4 8.d4 cb4 9.ab4=+) 8.ab4 Bf3 (8...ef4!? 9.d3 a6 10.Bc6 bc6=+) 9.Qf3+= Be7 10.0-0 (10.Bc6 bc6 11.Ra6 Qd7+=) 10...0-0= 11.Bc6 bc6 (11...Qb6 12.Rf2 bc6 13.Ba3=) 12.Ra6+= Qc8 13.Qe2 Bd8 14.Rf3 (14.fe5 de5 15.Kh1 Bb6+=) 14...Bb6 15.Kf1? (better 15.Kh1!?=) 15...Ng4-/+ 16.Rh3 ef4 17.Rh4 f5 (17...Ne5 18.Na4 Bd4 19.Ra5-+) 18.Bb2 f3 19.gf3 (19.Qf3 Qa6 Deflection; 19.gf3 Ne5 Combination) 19...fe4 20.Ne4 (20.Qe4 Nh6 (20...Qa6? 21.b5 Rf3 22.Qf3+-) 21.Ra3 d5 22.Nd5 cd5 23.Qd5 Nf7-/+) 20...Rf3 21.Qf3 (21.Kg2 Rf4 22.Kg3 Re4 23.Qe4 Bf2 24.Kf3 Bh4 25.Qg4 Qb7-/+) 21...Qa6-/+ 22.Kg2 Rf8 23.Qb3 (23.Qd1 h5! 24.Bg7 Kg7 25.Rg4 hg4 26.Qg4 Kh6 27.Qg5 Kh7 28.Qe7 Kg8 29.Qg5 Kh8 30.Qh6 Kg8 31.Qg5 Kf7 32.Qf6 Kg8 33.Qg5=) 23...d5 24.c4? (24.b5 A) worse 24...Qb5 25.Qb5 (25.Rg4?? Qf1 26.Kg3 Bf2 27.Nf2 Qf2 28.Kh3 Rf3 29.Qf3 Qf3 30.Kh4 g6-+) 25...Ne3 26.de3 cb5 27.Nc3 Be3 28.Nd5 Rf2 29.Kh3=; B) 24...Qc8 25.Qc3 Nf6-+) 24...de4-+ (24...dc4?! 25.Qc3 Bd4 26.Qd4=) 25.c5?? (25.Rg4 Rf2 26.Kh1 Rf1 27.Kg2 Rg1 28.Kh3 Rg4 29.Kg4 Qc8 30.Kg3 Bc7 31.Kf2 Bh2 32.Qe3-+) 25...Rf7 26.Rg4 (26.b5 Qc8 27.Rh7-+) 26...Qf1 27.Kg3 Bc7 28.Kh4 (28.Be5 Be5 29.Kh4 Qf2 30.Kh5 Qh2 31.Qh3 Qh3 32.Rh4 Rf5) 28...Qf2 29.Rg3 Qh2 30.Rh3 (30.Kg4 g6 31.Qf7 Kf7 32.Rf3 Kg8 33.Kg5 Qh5 34.Kf6 Bd8 35.Ke6 Qd5) 30...Qf4 31.Kh5 g6 0–1. Andreeva,Plamena (2070) – Savova,Stefka (2200), 55. ch–BUL women, 2006. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

5.h3 g6 6.Nf3 Bg7 7.Rb1 0-0 8.Bc4 Nh5 (8...a6 9.bc5 dc5 10.a4=) 9.Ne2 cb4 10.ab4 Nf6 11.d3 d5 12.ed5 Nd5 13.Bd2 b6 (13...a6 14.0-0=) 14.d4 Bb7 15.Bd3 e5 16.c4 (16.de5 A) 16...Be5? 17.b5 (17.Ne5?! Ne5 18.0-0 Nd3 19.cd3 Re8=) 17...Bg7 18.bc6 Bc6 19.Nfd4 Bd4 20.Nd4+-; B) 16...Ne5 17.Ne5 Be5=+) 16...Ndb4=+ 17.Be4 f5 18.Bf5? (better 18.Bb4 fe4 19.Bf8 ef3 20.Bg7 fe2 21.Qe2 Nd4 22.Qe5-+) 18...Rf5-+ (18...gf5?! 19.Bb4 Nb4 20.Rb4 Bf3 21.gf3 ed4 22.Qd3-/+) 19.Bb4 Nb4 20.Rb4 ed4 (20...Bf3 21.gf3 ed4 22.Qd3-+) 21.Nfd4 Bd4 22.Qd4 Bg2 23.Rh2 (23.Qd8 Rd8 24.Rh2 Bf3-+) 23...Bf3 (better 23...Qd4 24.Nd4 Re8 25.Kd1 Rf2-+) 24.Rb3 Be2 25.Qd8 Rd8 26.Ke2 Re5 (26...Rd4!? 27.Rc3-+) 27.Re3 Re3 (27...Ra5 28.Re7-+) 28.Ke3 Kf7 29.h4 Kf6 30.Rh1 Ke5 31.Rg1 Rd6 32.c5 bc5 33.Rg5 Kf6 34.Rc5 Ra6 35.Kf4 Ra4 36.Kg3 a5 37.Rc7 h5 38.Rc6 Kf7 39.Rc7 Ke8 (39...Ke6!?-+) 40.f3-/+ Kf8 41.Ra7 Ra1 (better 41...Kg8-/+) 42.Kf4= Ra3 43.Kg5 Rf3 44.Kg6 Kg8? (better 44...Ra3!?+=) 45.Ra8+- (45.Kh5?! Ra3+=) 45...Rf8 46.Ra5 Rb8 47.Kh5 (47.Rh5?! Rb6 48.Kf5 Rb5 49.Kg6 Rh5 50.Kh5 Kh8=) 47...Rb6 48.Kg5 Rb7 49.h5 Kh7 50.Rf5 Ra7 51.h6 (51.Rd5 Rg7 52.Kh4 Rg1 53.Rd7 Kh6 54.Rd6 Kh7+=) 51...Rb7 (better 51...Ra6!?+=) 52.Kh5 Ra7 53.Rg5 Rb7 54.Rg7?? (better 54.Re5+-) 54...Rg7= 55.hg7 Kg7 ½–½. Petersson,Gosta (2105) – Bhend,Edwin (2185), European Senior Team Championship, 2016. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 Nc6)

4.Nc3 e5

5.Bc4 Nc6 6.Rb1 (6.Nf3 Be7=) 6...Be7 (6...Ne4!? 7.Ne4 d5=+) 7.d3 0-0 8.f4 (better 8.bc5!? dc5 9.Nf3=) 8...cb4-/+ 9.ab4 Nb4 10.Nf3 Bg4?? (better 10...d5 11.Nd5 Nfd5 12.Bd5 Nd5 13.ed5 ef4-/+) 11.Rb4+- d5 12.Rb7 dc4 13.fe5 Nd7 14.d4 (14.dc4?! Bc5=) 14...Bh4 15.Ke2 Nb6 16.Ba3 Qg5? (better 16...Qc8 17.Bf8 Kf8 18.Rb6 ab6+-) 17.Qc1 Qh5? (17...Rfb8 18.Qg5 Bg5 19.Rb8 Rb8+-) 18.Bf8 Rf8 19.h3 Bf3 20.gf3 f5 (20...g6 21.Qf4 Bg5 22.Qg4+-) 21.Rg1 g6 22.Qf4 h6 (22...Nc8 23.ef5 Rf5 24.Qe4+-) 23.ef5 (23.ef5 Rf5 24.Qe4+-) 1–0. Sale,Srdjan (2380) – Mestrovic,Josip (1910), Prvenstvo Zupanije Splitsko–Dalmatinske, 2012. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Bc4 Be7 6.d3 0-0 7.Nge2 a5 (7...Nbd7 8.0-0=) 8.bc5+= dc5 9.0-0 Nc6 (9...Nbd7 10.f4+=) 10.Rb1 Rb8 11.Be3 Nd4 12.Na2 (12.f4 Bd6=) 12...Bg4 (12...b5 13.Nac3 Bd7 14.Bd4 cd4 15.Nb5 Bb5 16.Rb5 Rb5 17.Bb5 Ba3 18.Qa1=+) 13.f3 (13.Nac3 Be2 14.Ne2 b5=) 13...Bd7 14.Ng3 (14.Nac3!?=) 14...b5-/+ 15.Bd5 Be6 (15...Re8!?-/+) 16.Be6= Ne6 17.Nf5 b4 (17...Re8 18.Qe1=) 18.Ne7 (18.c3!?=) 18...Qe7=+ 19.Qd2 Rfd8 20.Nc1 Nd4 (20...a4 21.Qf2=+) 21.ab4 ab4 22.Nb3 Rdc8 (22...Nb3 23.cb3 Qd6 24.Rfc1=) 23.Bg5 (23.Rb2 Ra8=) 23...h6=+ (23...h6 24.Nd4 ed4= (worse 24...hg5 25.Nf5 Qf8 26.Qg5+-)). Foster,Duncan (1635) – Vollmer,Steve, FICGS, 2017. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Bc4 Be7 6.d3 0-0 7.Nge2 Nc6 (7...Nbd7 8.0-0=) 8.Nd5 (8.b5 Na5=) 8...Bg4 (8...cb4 9.ab4 Nd5 10.ed5 Nb4 11.c3=+) 9.h3 (9.c3 Nd5 10.ed5 Nb8=) 9...Bh5 (better 9...Be2 10.Nf6 Bf6 11.Qe2 cb4 12.ab4 Nb4=) 10.Bg5?? (better 10.c3=) 10...Nd5-+ 11.ed5 Nd4 (11...Bg5!? 12.dc6 bc6-+) 12.Be7-/+ Qe7 (12...Ne2?? 13.Bd8 Ng3 14.Qb1 Nh1 15.Bc7 cb4 16.Qb4+-; 12...Be2 13.Bd8 Bd1 14.Be7 (worse 14.Rd1 Rfd8 15.Kd2 b5=+; 14.Kd1?! Rfd8 15.c3 Nf5+=) 14...Bc2 15.bc5 dc5 16.Bc5=) 13.g4 Bg6 14.Nd4 ed4 15.Qe2 (15.Kf1 Qd7-/+) 15...Qh4 (15...Qd7 16.0-0-/+) 16.0-0-0 (16.Qf3 a6-/+) 16...Rfe8 (16...cb4 17.ab4 a5 18.Rde1-/+) 17.Qd2=+ a6 18.f4 f6 (18...b5 19.Bb3 f5 20.Rdg1=+) 19.Kb2 (19.bc5!? dc5 20.d6 Bf7 21.Bf7 Kf7 22.Qg2=) 19...b5-/+ 20.Bb3 Rac8 (20...Bf7 21.Rde1-/+) 21.bc5 Rc5 22.Qa5 (22.Rde1 Rec8=+) 22...Rec8 (22...Qg3 23.f5 Bf7 24.Rdg1=) 23.Rd2 (23.Qe1 Qh6 24.Qe6 Bf7 25.Qd6 Qh4=+) 23...f5 (23...Qg3 24.f5 Bf7 25.Qa6=+) 24.Qa6 fg4 (24...Qd8!? 25.gf5 Bf5-/+) 25.Qd6+= gh3 (better 25...g3+=) 26.Qd7 (26.Qe5 Qd8+=) 26...Bf7 (26...Qf4 27.Re2 Qf3 28.Rhh2=) 27.Rh3 (27.Qf5 g6 28.Qe5 h5+=) 27...Qf4=+ 28.Rdh2 h6 29.Qe7 Qf5 Increases the pressure on d5 (29...R5c7 30.Qh4 Qe5 31.Qg4+=) 30.Rg3 (30.d6 Bb3 31.d7 Ba4 (31...Rc2?? 32.Rc2 Rc2 33.Kb3+-) 32.d8Q Rd8 33.Qd8 Kh7 34.Qd4 Rc2 35.Rc2 Qh3 36.Qe4 Kg8 37.Qd5 Kh7+-) 30...R5c7 (30...Qf4 31.Rhg2 g5 32.d6 Bb3 33.d7+-) 31.Qb4 (31.Qd6 h5 32.Qh6+-) 31...Qe5 (31...Bd5 32.Qb5 Rc5+=) 32.Rhg2+= g5 33.Rg4 The isolani on d4 becomes a target (33.Qb5 Qd6=) 33...Bd5 34.Re4 Qf5 35.Qb5 Rc5 36.Qb6 R5c6 (36...Bb3 37.cb3 R5c6 38.Qd4+-) 37.Qd4+- Bb3 38.cb3 (worse 38.Kb3 Rc2 39.Re8 Re8 40.Rc2 Rb8 41.Ka2 Qf7 42.Qc4 h5=+) 38...Qf1 (38...Qf7 39.Rf2+-) 39.Qd5 Kf8 (39...Kg7 40.Qd7 Kg6 41.Re6 Re6 42.Qe6 Qf6 43.Qf6 Kf6 44.a4+=) 40.Rc4 Rc4 41.dc4 (41.bc4?! Rb8 42.Kc2 Qb1 43.Kd2 Rb2 44.Ke3 Qc1 45.Kd4 Qf4 46.Kc3 Qc1 47.Kd4 Qf4 48.Kc3 Qc1 49.Kd4=) 41...Re8 (41...Qf6 42.Kb1+-) 42.Qd6 Kf7 43.Qd7 (43.Rd2 Qf6 44.Qf6 Kf6 45.Rd6 Kg7+-) 43...Re7 44.Qd5 Kf8 (44...Kg7 45.Qd4 Kg6 46.Rd2+-) 45.Qd8 (45.Rd2 Qf6 46.Qd4 Qd4 47.Rd4 h5+-) 45...Kf7 (better 45...Re8 46.Qd2 Qf6 47.Ka2 Kg7+-) 46.Qd5 Kf8 47.Rd2 Re2 (47...Qf6 48.Qd4 Qd4 49.Rd4+-) 48.Qd6 (48.Kc2 Rd2 49.Kd2 Qf2 50.Kd1 Qb2 51.Qf3 Kg7+-) 48...Kf7 49.a4 (49.Qd7 Kf6 50.c5+-) 49...g4 (better 49...Qd1!? 50.Qd5 Ke7 51.Re2 Qe2 52.Kc3 Qe1 53.Kc2 Qe2 54.Qd2 Qe6+-) 50.Qh6+- Rd2 (50...Qf3 51.Re2 Qe2 52.Ka3 Qe7 53.b4+-) 51.Qd2 Qf6 52.Ka2 (52.Kc2 Qf5 53.Qd3 Qf2 54.Kc3 g3 55.Qd5 Kf6 56.Qd8 Kf7 57.Qd7 Kf8 58.Qc8 Kf7 59.Qb7 Kf6 60.Qc6 Kg5+-) 52...g3 53.Ka3 (53.Qd5 Kg7 54.b4 Qf2 55.Kb1 g2 56.Qg5 Kf7 57.Qh5 Kf6 58.Qh8 Kg5 59.Qg7 Kf4 60.Qh6 Ke4 61.Qg6 Ke3 62.Qb6 Ke2 63.Qf2 Kf2-+) 53...Qf2 54.Qd5 (54.Qd7 Kf6 55.Qd6 Kg5 56.Qe5 Kg4 57.Qe4 Kg5 58.Qd5 Kf6 59.Qc6 Kg5 60.Qb5 Kh4=) 54...Kf6 55.Qd6 ½–½. Foster,Duncan – Vollmer,Steve (1630), FICGS, 2016. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Bc4 Be7 6.d3 0-0 7.Nf3 Nc6=.

5.Bc4 Be7 6.Nf3 Nc6=.

4.Nc3 e6

5.Nf3 a6 6.Be2 Be7 7.Bb2 b5 (7...Nc6 8.bc5 dc5 9.0-0=) 8.0-0 (8.bc5 dc5 9.e5 Nd5+=) 8...Bb7 9.Re1 (9.bc5 dc5 10.e5 Nd5=) 9...0-0= 10.Bf1 (10.bc5 dc5 11.e5 Nfd7=) 10...Qc7 11.d3 (11.bc5 dc5 12.e5 Nfd7=) 11...d5 (11...Nc6 12.Qd2=+) 12.e5= Nfd7 13.Ne2 (13.bc5 Nc5 14.g3 Nc6=) 13...Nc6 Now all is on e5 (13...cb4 14.ab4 Nc6 15.Nf4=+) 14.bc5 Bc5 (14...Nc5 15.Nc3=+) 15.d4 Be7 16.Nf4 Nb6 17.Bd3 (17.Bc1 Na4=) 17...Nc4 (17...Na4 18.Bc1=+) 18.Bc1 (18.Bc4 bc4 19.Qd2 Rab8=) 18...N6a5 (18...Qa5 19.Bc4 dc4 20.Bd2=) 19.Nh5 b4?? (better 19...Qd8=) 20.ab4+- Bb4 21.Bh7 Kh7?? (better 21...Kh8 22.Bd3 Rfb8+-) 22.Ng5 Kg8 (22...Kh8 23.Qd3 f5 24.ef6 gf6 25.Re6 Bc8 (25...fg5?? 26.Rh6 Kg8 27.Qg6 Qg7 28.Qg7) 26.Nf6 Be6 27.Ne6 Qh2 28.Kh2 Bd6 29.Kg1 Rf6+-) 23.Nf6 gf6 24.ef6 Qd8 (24...Be1 25.Qd3 Bf2 26.Kh1 Qh2 27.Kh2 Bg1 28.Kg1 Rfb8 29.Qh7 Kf8 30.Qf7) 25.Qh5 (25.Qh5 Re8 26.Qf7 Kh8 27.Qg7) 1–0. Salmoiraghi,Angelo (2015) – Sazonova,Anastasia (1850), Pardubice op–J, 2006. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Nf3 d5 6.ed5 ed5 7.Bb2 (7.Bb5!? Nc6 8.Qe2 Be6 9.Ng5 cb4 10.Ne6 fe6 11.Qe6 Qe7 12.Qe7 Be7 13.ab4 Bb4 14.Ne2+=) 7...cb4+= 8.ab4 Bb4 9.Bb5 Bd7 10.0-0 0-0 11.Bd7 Nbd7 (worse is 11...Nfd7 12.Nd5 Bd6 13.Ne3+=) 12.Ne2 Nb6 13.c3 Bd6 14.d4 (better is 14.Ba3!?-/+) 14...Nc4-+ 15.Bc1 Qc7 16.Bd2 (16.Ng3 Bg3 17.fg3 Rfe8-+) 16...Ne4 17.Rc1 (17.Bc1 a5-+) 17...Ned2 (17...Bh2 18.Nh2 Ned2 19.Re1-+) 18.Nd2 Bh2 19.Kh1 Bd6 20.Nf3 (20.Nc4 dc4 21.Rb1 Qd7-+) 20...Rfe8 21.Qd3 Re6 22.g3 (22.Rfe1 a5-+) 22...Qe7 23.Neg1 Rh6 (23...a5 24.Qf5 Ba3 25.Rb1-+) 24.Kg2 Qd7 25.Rfe1 Qg4 26.Qc2 (26.Nd2 Nd2 27.Qd2 Qh5-+) 26...f5 (26...b5!? 27.Re2-+) 27.Qb3 Nb6 28.Qb5 Qh5 29.Rb1 (29.Ra1 f4 30.Qb6 ab6 31.Ra8 Kf7-+) 29...f4 30.Qa5 (30.gf4 Rf6 31.Qd3-+) 30...Nc4 31.Qb5 fg3 32.fg3 (32.Re5 Qh1 33.Kf1 Be5 34.Qd5 Kh8 35.Qc4-+) 32...Rf8 33.Rbd1 Qh1 34.Kf1 Rf3 35.Ke2 Qg2 0–1. Wodzynska,Zofia – Lach,Aleksandra (1980), Mistrzostwa Polski Juniorow – D12 Poland, 2007. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.Nf3 Be7 6.Bb2 0-0 7.Be2 cb4 8.ab4 d5 9.ed5 Bb4 10.de6 Be6 11.0-0 Nc6 12.Ra4 a5 13.Re1 h6 (13...Re8 14.Ng5=) 14.Na2 Bd6 15.d4 (15.Qa1 Bf5 16.Bf6 Qf6 17.Qf6 gf6=) 15...Nb4 (15...Nd5 16.c4 Nb6 17.d5+=) 16.c4 (better 16.Nb4!? Bb4 17.c3=) 16...b5=+ 17.Nb4 (17.cb5 Ba2 Pinning (17...Ba2 Deflection)) 17...Bb4 18.Rb4 (18.cb5 Be1 19.Qe1 Bb3=+) 18...ab4-/+ 19.d5 Bg4 20.Bf6 (20.cb5 Nd5 21.h3 Be6-/+) 20...Qf6 (20...gf6?! 21.c5=) 21.c5 (21.cb5 Rfe8 22.Nd4 Be2 23.Ne2-+) 21...b3 (better 21...Qc3 22.c6 Rfd8-+) 22.Qb3=+ Ra1 23.Ra1 Qa1 24.Qd1? (24.Bf1 Rc8 25.c6 Ra8=) 24...Qa3?? (better 24...Ra8 25.Qa1 Ra1 26.Bf1 Rd1-+) 25.c6=+ b4 (25...Qc5!? 26.h3 Bf3 27.Bf3 Qd6=+) 26.d6+= b3 27.d7 b2? (27...Bf3 28.gf3 Qa5 29.Qb3 Qg5 30.Kh1 Qf4+/-) 28.Bd3?? (better 28.d8Q Rd8 29.Qd8 Qf8 30.Qb6+-) 28...Qd6-+ 29.h3 (better 29.Qc2 Bf3 30.gf3 b1Q 31.Qb1 Qc6 32.Bh7 Kh8 33.Bf5-/+) 29...Qc6 (better 29...Bf5! 30.Ne1 Ra8-+) 30.hg4=+ Qc1 (30...Qc1 31.Qf1 f6 32.Bc4 Kh8-+) 0-1. Chernetskiy,M (2245) - Yarovik,Y (2345), Bogdanovich Mem Qual, 2021. (=1.e4 c5 2.a3 d6 3.b4)

5.Nf3 Be7 6.Bb5 Nbd7 7.bc5 dc5 8.e5 Nd5 9.Nd5 (9.Bb2 a6 10.Bd7 Bd7 11.Nd5=+) 9...ed5 10.c4 (10.0-0 a6 11.Be2 0-0=) 10...dc4 (10...a6 11.Bd7 Qd7 12.d3=+) 11.0-0 (11.Bc4=) 11...0-0 12.Bc4 Nb6 13.Ba2 Bf5 14.d4 cd4 (14...c4 15.Bb1 Bb1 16.Rb1=+) 15.Nd4 Bg6 16.Bb2 Kh8 (16...Qe8 17.Bb3+=) 17.Qb3 (17.Rc1 Qe8+=) 17...Bc5= 18.Rad1 Qe7 19.Nb5 Bf5 (19...Bh5 20.Rd2 Rad8 21.Rd8 Rd8 22.Qg3= (22.Na7? Be2-+)) 20.Qg3+- Be6 21.Bb1 (21.Be6 fe6 22.Nd6 Rad8+-) 21...Rfd8 (21...Nc4 22.Bd4=) 22.Nd6+= Kg8 (22...Nc4 23.Bd4 Bd6 24.ed6+=) 23.Bc1 Rd7 24.Bh6 f6 (better 24...Qf8 25.Ne4 Rad8 26.Rd7 Nd7+-) 25.Bf4?? (better 25.Ne4 Rd1 26.Rd1 Bf2 27.Nf2 (27.Qf2?! gh6 28.Nf6 Kg7+-) 27...fe5 28.Qe5+-) 25...fe5= 26.Be5 (26.Bg5 Qf8 27.Qh4 g6+-) 26...Rad8 27.Bf5 Bd6 28.Be6 Qe6 29.Rd6 Qe7 30.Rd7 Qd7 (30...Nd7 31.Bc7 Re8 32.Qb3 Kh8 33.Qb7 Qa3 34.Ba5 Qa5 35.Qd7=) 31.h3 (31.Bc7 Re8 32.Bb6 ab6 33.Qb3 Qe6 34.Qe6 Re6+-) 31...Re8 (31...Nc4 32.Re1 Qf7 33.Bc3=) 32.Rc1+= Rc8 33.Re1 (33.Rc8 Nc8 34.Qb3 Qf7+=) 33...Re8 (33...Nc4 34.Bf6 Qf7 35.Qg4=) 34.Kh2 Rc8 (34...Re7 35.Rc1 Nd5 36.Rd1+=) 35.Re4+= Rc4 (35...g6 36.Bd4+=) 36.Re3 (36.Bg7!? Re4 37.Bd4 Rg4 38.Qb3 Qf7 39.Qf7 Kf7 40.hg4+=) 36...Rc8+= 37.Bf6 Qf7 38.Ba1 (38.Bd4 Nc4 39.Rf3 Qe7+=) 38...Nd5 (38...Nc4 39.Re4 Nd2 40.Re1=) 39.Qg4 (39.Rf3 Qc7 40.Bg7 Qg7 41.Qd6+-) 39...Rf8 40.Rf3 Qc7 41.Rg3 Nf6 42.Qe6 Qf7 43.Qe5 Nh5?? (better 43...b6=) 44.Qh5+- Qh5 (44...Kh8 45.Rg7 Qg7+- (45...Qh5?? 46.Rg5 Rf6 47.Bf6)) 45.Rg7 Kh8 46.Rg5 (46.Rg5 Rf6 47.Bf6) 1–0. Damia,Angelo (2265) – Bemporad,Filippo (2080), 8th Milan Crespi op–A, 2007. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Nf3 Be7 6.d4 0-0 7.bc5 dc5 8.d5 ed5 9.ed5=.

5.Nf3 Be7 6.d4 cb4 7.ab4 d5 8.e5 Ne4 (8...Bb4 9.Bd2 Bc3 10.Bc3=+) 9.Bd2 (9.Na2!?=) 9...Nd2-/+ 10.Qd2 (10.Nd2 Bb4 11.Nb5 Nc6-/+) 10...Bb4 11.Rb1 (11.Kd1 0-0-/+) 11...a5 (11...Qa5 12.Rb4 Qb4 13.Nb5 Qb1 14.Qd1 Qd1 15.Kd1-+) 12.Bd3 (12.Be2 Bd7 13.0-0 0-0-/+) 12...Bd7 13.0-0 Na6 (13...Nc6 14.Bb5-/+) 14.Ba6 (14.Qe3 Bc3 15.Ba6 Ra6 16.Qc3 Qc8-/+) 14...ba6 (14...Ra6 15.Qd3-/+) 15.Qd3 (15.Qe3!?=+) 15...Rc8-/+ 16.Ne2 Bb5 17.c4 (17.Qd1 0-0-/+) 17...dc4-+ 18.Qe4 (18.Qe3 Bc6-+) 18...c3 19.Rfc1 Be2 (19...0-0 20.Ra1-+) 20.Qe2-/+ 0-0 21.Qa6 Qd5 22.h3 (22.Qd3 Rfd8-/+) 22...h6 (22...Rc4!? 23.Rc2-+) 23.Qd3-/+ Rfd8 24.Kh2 (24.Ra1 Rd7-/+) 24...Rc4 25.Rc2 (25.Ra1 Rd4 26.Qd4 Qd4 27.Nd4 Rd4-+) 25...a4 26.Ra1 a3 27.h4 (27.Qe3 Rb8-+) 27...Rdc8 28.Rb1 Be7 29.Rb3?? (29.Qe3 Qc6-+) 29...Qa5 (better 29...a2 30.Ra2 c2 31.Rc2 Rc2-+) 30.Rb1 Qa8 31.Ng1 (31.Rbc1 Qc6-+) 31...Rb4 (31...Bh4!? 32.Rbc1-+) 32.Ra1 Ra4 (32...Rb3 33.Nf3 Bb4 34.h5-+) 33.Rc3-/+ Rc3 34.Qc3 a2 35.Nf3 g5 (better 35...Bb4 36.Qc4 Qa5 37.Qc8 Kh7 38.Qc2 g6-+) 36.hg5=+ hg5 37.Kg3? (better 37.Qc2=) 37...Qe4 38.Qb3?? (38.Kh2 Qh7 39.Kg1 Qb1 40.Kh2-+) 38...Qf4 39.Kh3 g4 0-1. Riehle,Marco (2345) - Kuzubov,Y (2640), Titled Tue, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.Nf3 Be7 6.d4 cd4 7.Nd4 (7.Bb5 Bd7 8.Bd7 Qd7 9.Nd4 0-0=) 7...0-0 8.Bd3 (8.Be2 a5 9.b5 e5=+) 8...Nc6 9.Nc6 bc6 10.0-0 a5 (10...e5 11.Bc4=) 11.b5 (11.Bd2 Bd7=) 11...cb5 12.Nb5 Ba6 (12...Bb7 13.Qe2=) 13.a4 (13.Rb1 Rb8 14.c4 Bb7=) 13...d5 14.e5 Nd7 15.Qe2 (15.Re1 Nc5=) 15...Nc5 (15...Ne5 16.Qe5 Bf6 17.Bh7 Kh7 18.Qh5 Kg8 19.Ra3=+) 16.Ba3 (16.Bd2 Nd3 17.cd3 Qd7=) 16...Nd3 (16...Qd7 17.Rfb1=) 17.cd3 (17.Qd3 f6 18.ef6 Rf6=) 17...Bb5 (17...Ba3 18.Ra3 Bb5 19.ab5=) 18.ab5 Ba3 19.Ra3 Qb6 20.Rb1 h6 (20...Rfc8 21.g3=) 21.Qe3 (21.Ra4 Rfd8=) 21...Rfb8 (21...d4 22.Qe4=) 22.Ra4 (22.Qb6!? Rb6 23.Ra4+=) 22...Kf8 (22...Qc6! 23.Rab4 Qe8=) 23.Kf1+= ½–½. Hursky,Karel P (2080) – Lee,Ben (2020), 2009. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Nf3 Be7 6.Be2 0-0 7.0-0 b6 8.Re1 (8.d4 Bb7 9.d5 Na6=) 8...Bb7 9.Bf1 Nc6 10.Rb1 Nd4 11.d3 a6 12.bc5 dc5 13.Ne5 b5 14.a4 Nd7 15.Nf3 (15.Bf4 b4+=) 15...b4 (15...Qa5 16.Bd2 Nf3 17.Qf3-/+) 16.Nd4+= cd4 17.Ne2 e5 18.c3 dc3 (worse is 18...bc3 19.Rb7 Qc8 20.Rb3+/-) 19.Nc3 bc3 20.Rb7 Nc5 21.Rb1 Ne6 22.Be3 Rb8 23.Qh5 Qc7 24.g3? (better is 24.Be2-/+) 24...Rb1-+ 25.Rb1 c2 26.Ra1 (26.Re1 Ba3 27.Bh3 Nd4-+) 26...Qc3 27.Rc1 Ba3 28.Qe2 Bc1 29.Bc1 Nd4 30.Qe3 Qa1 0–1. Lukac,Roman (2115) – Nagy,Tomas (2210), SVK–chT1W, 2008. (=1.e4 c5 2.b4 d6 3.a3 Nf6)

4.Nc3 g6

5.Rb1 Nbd7 6.Nf3 Bg7 7.h4 0-0 8.d3 b6 9.Bd2 Bb7 10.Qc1 Re8 11.Be2 Rc8 12.b5 Qc7 13.Bh6 Bh8 14.h5 Nh5 15.Nd1 Ndf6 16.g4 Ng7 17.Qg5 Ne6 18.Qh4 Nd7 19.c4 f6 20.Ne3 Ndf8 21.Kd2 Qd7 22.Rbg1 Red8 23.g5 Qe8 24.Bf1 Qf7 25.Bh3 f5 26.ef5 gf5 27.g6 Ng6 28.Nf5 Rc7 29.Be3 Kf8 30.Qg4 Bf3 31.Qf3= Ne5 32.Qe4+/- Ke8? 33.Nh6 Qf6 34.Be6 Qe6 35.f4 Nf7?? 36.Qe6 (36.Qe6 Nh6 37.Rh6 Bg7 38.Rg7 a6 39.Rg8) 1–0. Vogiatzis,D (2030) – Forster,Stephan, 5th LGA Premium Cup (3), 2008.

5.Rb1 Bg7 6.Bc4 a6 7.bc5 dc5 8.Ba2 (8.a4 Nc6=) 8...Nc6 (8...0-0 9.Nf3=+) 9.h3 (9.Nf3 0-0=+) 9...b5=+ 10.d3 (10.Nf3 Bb7=+) 10...Rb8 (10...Qa5!? 11.Nge2 Be6 12.Be6 fe6=+) 11.Nf3= Qa5 Black prepares the advance b4 12.Bd2 b4 (worse 12...Qa3 13.Bf7 Kf7 14.Ra1+-) 13.Ne2 Qa3 (13...0-0 14.0-0=) 14.Ra1 Qb2 15.e5? (better 15.Bc4!? Ne4 16.Ra2 Nd2 17.Bf7 Kd8 18.Rb2 Nf3 19.gf3 Bb2 20.Bd5=) 15...Nd7-/+ (15...Ne5?! 16.Ne5 Qe5 17.Bf4=) 16.Bc4? (better 16.Bd5!? Nce5 17.d4 Nf3 18.gf3-/+) 16...Nce5-+ 17.Ne5 Qe5 (17...Be5? 18.Ra2+-; 17...Ne5?! 18.Ra2 Nc4 19.Rb2 Nb2 20.Qb1-/+) 18.Ra2 Qf6 (18...Qd6 19.0-0-+) 19.Ng3 Qb6 (19...Qc6 20.0-0-+) 20.Qe2 (20.0-0 Bb7-+) 20...Bb7 21.0-0 Qc6 (21...0-0 22.Bf4 Rbe8 23.Ne4-+) 22.f3 (22.Qe4 Qd6 23.Qh4 f5-/+) 22...Ra8 23.Re1 (23.Ne4 0-0 24.Be3 a5-+) 23...e6 24.Bb3 (24.Ne4 0-0-+) 24...Nb6 (24...0-0 25.Ne4-+) 25.Ne4 (25.Ra5 Qc7 26.Qf2-+) 25...h6?? (25...a5 26.Qf2 a4 27.Bc4 Nc4 28.dc4-+) 26.Bf4? (better 26.Qf2 0-0 27.Qc5 Qc5 28.Nc5=+) 26...0-0-+ 27.Qd2 Kh7 28.Qf2 (28.Be3 c4 29.dc4 Nc4 30.Qb4 Ne3 31.Re3 a5 32.Ra5 Ra5 33.Qa5 Bd4-+) 28...Bd4 (better 28...a5 29.Nc5 a4-+) 29.Re3?? (29.Be3 Rfd8 30.Bd4 cd4 31.Qg3=+) 29...Nd5-+ 30.Bd5 ed5 31.Qh4 (31.Nd6-+) 31...de4 32.Bh6 (32.de4 h5 33.Kh2 a5-+) 32...Rh8 (32...Qd5 33.Ra4 ef3 34.Bf8 Qh5 35.Qe7 Rf8 36.c3 Be3 37.Qe3 fg2 38.Ra1 bc3 39.Rb1-+) 33.Kh1 (33.c3 bc3 34.de4 Kg8-+) 33...Be3 (better 33...ef3 34.Rf3 Qe6 35.Be3 Kg8 36.Qg3-+) 34.Be3 Kg8 35.Qg4 (35.Qe4 Rh5 36.Kg1-+) 35...ef3 36.Ra5 fg2 37.Kh2 Qf3 (37...Qf3 38.Qf3 Bf3-+) 0–1. Schiller,Stefan (1730) – Tom,George (1680), GER–ch Clubs U20, 2007. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 g6)

5.Rb1 Bg7 6.Nf3 0-0 7.Be2 (7.d4 cd4 8.Nd4 Ne8=) 7...b6 (7...Ne8 8.b5=) 8.0-0 (8.d4 cb4 9.ab4 Qc7+=) 8...Bb7 (8...Ne8!?+= is worth consideration) 9.d3 Nbd7 10.Bb2 (10.bc5 dc5 11.Ng5 Ne8=) 10...Rc8 (10...Nh5 11.Nd2 Nf4 12.Nb5=) 11.h3 Secures g4 (11.b5 Bh6=) 11...Nh5 12.bc5 Nc5 13.Qd2 (13.Nb5 Bb2 14.Rb2 Na4=) 13...Qd7 (13...e6 14.Nb5 Bb2 15.Rb2+=) 14.Nh2 Nf6 (14...Bc3 15.Qc3 Nf6 16.e5+=) 15.Nd1 (15.Nb5 Nb3=) 15...Na4 16.Ba1 Qc6 (16...e5 17.Ne3=) 17.c4 Nc5 18.Nc3 (18.Qg5 Ne6 19.Qh4 Qa4=) 18...Qd7 (18...Nfd7 19.Nd5 Rfe8 20.Bg7 Kg7 21.Ng4+/-) 19.Nd5 (19.Nb5!?+= might be a viable alternative) 19...Bd5 20.ed5 e6 (20...Qa4 21.Qe3=) 21.de6 fe6 22.d4 (22.Bf3 e5=) 22...Nce4 23.Qe3 d5 24.Bd3 Nd6 25.c5 bc5 26.dc5 Nf5 27.Bf5 ef5? 28.Rfc1 Qc6 29.Nf3 Nd7?? 30.Bg7+- Kg7 31.Nd4 f4 32.Qe7 Rf7 1–0. Kadas,Gabor (2225) – Szulics,Imre (2070), Piremon Nyirsegi Torna op, 2002. (=1.e4 c5 2.b4 d6 3.a3 Nf6)

5.Bb2 Bg7 6.Rb1 0-0 7.h4 h5 8.Nf3 Nc6 9.bc5 dc5 10.e5 (better 10.Be2!?=) 10...Ng4-/+ 11.Ne4 b6 12.Qe2 Qc7 (12...Be5?! 13.Ne5 Nge5 14.Nc5 bc5 15.Be5=) 13.e6 Be6 14.Bg7 Kg7 15.g3 Nd4 16.Nd4 cd4 17.d3 (17.Qd3!? Rfd8 18.f4-+) 17...Rac8 18.Rb2 (18.Rc1 Bd5 19.Bh3 f5 20.Bg4 hg4-+) 18...Bd5 19.Bg2 (19.c4 dc3 20.Rc2-+) 19…Be4 (19...Be4 20.0-0 Bg2 21.Kg2 Qd6-+) 0-1. Bisaillon,Marc - Allard,Laurent (2050), Laval Open, 2019. (=1.e4 c5 2.a3 d6 3.b4)

5.Bb2 Bg7 6.d3 0-0 7.b5 (7.bc5 dc5 8.Nf3 Nc6=) 7...Bd7 8.f4 (8.a4 a6=) 8...Nh5 (8...Qa5 9.Qd2-/+) 9.Qc1 (9.Qd2 Qa5=+) 9...Qa5 10.Qd2 (10.Nge2 Bb5 11.Qd2 Bd7-/+) 10...Nf4! 11.g3 (11.Qf4 Be5 Double attack (11...Bc3 Deflection; 11...Be5 Decoy; 11...Bc3 Overloading)) 11...Ne6-+ 12.Rb1 Nc7 (12...Re8 13.Nf3-/+) 13.a4 (13.Nd5 Qd2 14.Kd2 Bh6 15.Kd1 Nd5 16.ed5 Bb5 17.Bf6 ef6 18.Rb5-+) 13...Bc3 (13...a6 14.ba6 Nba6 15.Nb5 Qa4 16.Bg7 Kg7 17.Qc3 f6 18.Nc7 Nc7 19.Rb7-+) 14.Bc3? (better 14.Qc3!? Qc3 15.Bc3=+) 14...Qa4-+ 15.h4 (15.b6 ab6 16.Nf3 e5-+) 15...Qa2 (better 15...Nb5!? 16.Ra1 Na3-+) 16.Ra1-/+ Qe6 17.Bh3 f5 ½–½. Djuza,Zivko – Muskinja,Luka, Banovci Dunav – Vidovdan, 2016. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 g6)

5.Bb2 Bg7 6.Nd5 0-0 7.Nf6 ef6 8.Nf3 (8.Qf3 Nc6=) 8...d5 (8...Re8 9.bc5 Re4 10.Be2 dc5 11.0-0+=) 9.d3 (9.ed5!? Re8 10.Be2 cb4 11.ab4 Qd5 12.0-0=) 9...Re8+= 10.Be2 cb4 11.0-0 ba3 12.Ra3 de4 13.de4 Qd1 14.Rd1 (14.Bd1? Re4 15.Nd2 Re8-+) 14...Nc6 (14...Re4 15.Rd8 Bf8 16.Rc8 Re2 17.Bf6+=) 15.Bb5 Bg4 16.h3 Be6 (16...Bf3 17.gf3 f5 18.Bg7 Kg7 19.ef5 gf5 20.Bc6 bc6 21.Ra6+=) 17.Nd4 (17.Rda1 Re7-/+) 17...Red8 (17...f5 18.ef5 Bf5 19.c3 Nd4 20.cd4-/+) 18.c3 (18.Bc6 bc6 19.Rda1 f5 20.Ne6 Bb2 21.Nd8 A) worse is 21...Ba1 22.Nc6 (worse is 22.Ra1 Rd8 23.ef5 Kg7=) 22...Bb2 23.Ra2+/-; B) 21...Rd8 22.ef5 Ba3 23.Ra3 Rd1 24.Kh2 Rd2 25.Ra7 Rf2 26.fg6 hg6=) 18...Ne5 (18...f5!? 19.Bc6 bc6 20.ef5 Bf5-/+) 19.Rda1= a6 20.f4 Nd7 21.Ne6 (21.f5!? gf5 22.ef5+= (22.Nf5? Bf8 23.Ra5 Nc5-+)) 21...fe6-/+ 22.Bc4 Nc5 23.f5 Kf7 24.Ra5 Bf8 (24...Ne4 25.Be6 Ke8 26.Re1+=) 25.fe6 Ne6 26.Rf1 b5 (better is 26...Rac8!? 27.Bd5 Rc5+=) 27.Bd5= Bc5 28.Kh1 Ra7? (better is 28...Be7=) 29.c4+- Rd5 (29...Be7 30.cb5 Rdd7 31.b6+- (31.ba6?! Rd6+-)) 30.ed5 (30.Rf6!? Ke7 31.cd5 Nc7+-) 30...Nd4 31.Bd4 (31.Bd4 Bd4 32.cb5 ab5 33.Rb5+-) 1–0. Czyzykiewicz,Rafal (1815) – Lenda,Lukasz (1925), Mistrzostwa Polski Nauczycieli Poland, 2008. (=1.e4 c5 2.a3 d6 3.b4 Nf6=)

5.Bc4 cb4 6.ab4 Bg7 (6...Nc6 7.b5 Na5 8.Be2 Bg7 9.d4 Qc7 10.Qd2 Be6 11.Ra4=) 7.d4 0-0 8.Bb3 (8.Nge2 Ne4 9.Ne4 d5 10.Bd3 de4 11.Be4=) 8...Nc6 9.Nge2 (9.Ra4 Bd7 10.Nf3 a6 11.d5+=) 9...Nb4 10.0-0 Nc6 (10...Bd7 11.Ba3 a5 12.e5+=; 10...Qc7 11.f3+=) 11.f4 (11.Bg5+=) 11...Bg4 12.Be3 e5 (12...Rc8 13.h3 Be2 14.Qe2+=) 13.Qd3 Be2 14.Ne2 ed4 15.Nd4 Qe7 (15...Nb4 16.Qb5 Ng4 17.Qe2-/+) 16.Ra4 Rfe8 17.Nc6 bc6 18.e5 de5 19.fe5 Nd5 20.Bd5 cd5 21.Qd5 Be5 22.Bc5 (better is 22.Bb6!+=) 22...Qc7-+ 23.Kh1 Rad8 (23...Red8 24.Qf3-+) 24.Qf3 (better is 24.Qb3!? Rb8 25.Ra7 Rb3 26.Rc7-/+) 24...a5-+ (24...Qc5? 25.Qf7 Kh8 26.Ra7 Qa7 27.Qa7+-) 25.Rh4 Bg7 26.Be3 Rd7 27.Qf2 (27.Re4!? Rc8 28.Ra4 Bc3-+) 27...Qc6 28.h3 Qe6 (28...a4 29.Bc5-+) 29.Bh6 (29.Bd4 Qe2 30.Bg7 Kg7-/+) 29...Bh6 30.Rh6 Rc8 (30...a4 31.Rh4 Qa6 32.Rf4-+) 31.Re1 (31.Rh4 Rdc7 32.Qd2 Qe7-/+ (32...Rc2 33.Qh6 Re2 34.Qh7 Kf8 35.Rg4+-)) 31...Qc6 32.Re2 (better is 32.Rh4-+) 32...Rd1 (32...Rd1 33.Kh2 Qc7 34.g3 a4-+) 0–1. Vasiesiu,Victor (2240) – Soltanici,R (2405), TCh–ROU Superliga, 2015. (=1.e4 c5 2.a3 d6 3.b4 Nf6)

5.Bc4 Nc6 6.bc5 dc5 7.Nf3 Bg7 8.Rb1 0-0 9.0-0 Bg4 10.Be2 Qd7 11.Re1 =.

5.Bc4 Nbd7 A) 6.Qe2 Bg7 (6...Ne5 7.bc5 dc5 8.Nf3 Nc4 9.Qc4 Nd7 10.Bb2 Bg7 11.0-0+=) 7.bc5 Nc5 8.d4 Ncd7 9.Nf3 0-0 10.0-0 Nb6 11.Bd3+=; B) 6.Rb1 Bg7 7.bc5 Nc5 8.Qe2 0-0 9.Nf3 Bg4 10.d4 Ne6 11.Qd3=; C) 6.Nf3 Bg7 7.Qe2 0-0 8.bc5 Nc5 9.d4 Ncd7 10.0-0 Nb6 11.Bd3+=.

5.Bc4 Bg7 6.Rb1 cb4 7.Rb4 0-0 8.Nf3 Nc6 9.Rb1 Ne4 10.Ne4 d5 11.Bd3 =.

5.bc5 dc5 6.Bc4 Nc6 7.Nf3 Bg4 8.e5 Bf3 9.Qf3 Ne5 10.Bb5 Nfd7 11.Qb7 Bg7 12.f4 (12.0-0!?+=) 12...Rb8= 13.Qa7 Rb5 14.Nb5 (worse 14.fe5 Ra5 15.Qb7 Be5-/+) 14...Nf3 (better 14...Nc6!? 15.Nc7 Kf8=) 15.gf3+- Ba1 16.Nc7 Kf8 17.c3 e5 (17...Kg7!?+-) 18.0-0+- ef4 19.a4 Qf6? (better 19...Qg5 20.Kh1 Qe5+-) 20.Qa8 Kg7 21.Ne8 Re8 22.Qe8 Qg5 23.Kh1 Ne5? (23...Qd5 24.Qe4 Qa2+-) 24.Qb5 c4 (24...Nf3 25.Rf3 Qd5 26.Qd3+-) 25.Ba3 Qh5 (25...Qf6 26.Qd5 Bc3 27.dc3+-) 26.Bd6 (26.Ra1? Qf3 27.Kg1 Qe2-+) 26...f6 (26...Bc3 27.dc3 Nc6 28.Qc6+-) 27.Be5 (27.Ra1?! Qf3 28.Kg1 Qg4 29.Kh1 Qf3 30.Kg1 Qg4 31.Kh1 Qf3=) 27...fe5 28.Qc4 Bb2 (28...Qf5 29.Ra1 Qd7 30.Re1 Qd2 31.Re5 Qd1 32.Kg2+-) 29.a5 (29.a5 Qh4 30.a6+-) 1–0. Malaczek,Mateusz (1815) – Ostrowska,Dominika (1910), Warsaw Najdorf Memorial op–C, 2009. (=1.e4 c5 2.b4 d6 3.a3 Nf6 4.Nc3 g6)

5.bc5 dc5 6.e5 Nd5 7.Bb2 Bg7 8.Bb5 Bd7 9.Bc4 (9.Bd7 Qd7 10.Nd5 Qd5=) 9...Nc3 (9...Nb6 10.Qe2=+) 10.Bc3= 0-0 11.Nf3 Nc6 12.Rb1 b6 13.0-0 Bg4 14.Re1 e6 15.h3 Bf3 16.Qf3 Qc7 Increases the pressure on e5 17.Qg3 a6 18.f4 b5 19.Be2 Rfd8 20.Bf3 Rab8 21.d3 (21.Be4 Bf8=) 21...Nd4=+ 22.Bd4 cd4 23.Re2 Qc3 24.Rb3 Qc5 25.h4 Rdc8 26.h5 Qe7 27.Rb4 Qd8 28.Qf2 Bf8 29.Rd4 (better 29.hg6 hg6 30.Rb3=+) 29...Qb6 (better 29...Qd4! 30.Qd4 Bc5 31.Qc5 Rc5-/+) 30.Rd7+= Ba3 31.Qb6 Rb6 32.Ra7 Bc5 33.Kh2 b4 34.h6 (34.Bb7 Rbc6 35.Ra6 Ra6 36.Ba6 Ra8+=) 34...Bd4 (34...Bf8 35.g3=+) 35.g4 (35.Re4 Bc3+/-) 35...b3 (35...Rd8!?=) 36.cb3+= Rb3 37.Ra6 Rd3 (37...Rd3 38.Rd6 Kf8+=) 0-1. Sergeeva,Anna - Beydullayeva,Govhar (2260), Djerba Women Online, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.bc5 dc5 6.e5 Nfd7 7.e6 fe6 8.Nf3=.

5.bc5 dc5 6.e5 Ng4 7.Bb5+= Nc6 8.Bc6 bc6 9.f4 Bg7 10.Nf3 0-0 11.h3 Nh6 12.Ne4 (12.0-0 Rb8=) 12...Qd5= 13.Qe2 Bf5 14.Nc3 Qd8 15.d3 Be6 16.0-0 Nf5 17.Kh2 Nd4 18.Nd4 (18.Qd1 Bd5 19.Nd5 cd5 20.Nd4 cd4=) 18...Qd4 (18...cd4!? 19.Ne4 Rb8=+) 19.Qe1= c4 20.Be3 Qd7 21.d4 f5 (21...Bf5!?=) 22.Na4+= Bd5 23.Nc5 Qc7 24.Rb1 Rfb8 25.Qh4 Rb6 26.Bd2 Rb5 (26...e6!?+=) 27.a4+- Rc5 28.dc5 Be4 29.Rfc1 Rd8 30.Bc3 Rd5 (30...h6 31.Qg3 Kh7 32.Rb2+-) 31.Rb4 a5 32.Rb2 Re5? (32...h6+-) 33.Rcb1 (33.Be5?! Be5 34.Rcb1 Bf4 35.Kg1 Bg3 36.Rb8 Kg7+=) 33...Rd5 (33...Re6 34.Rb8 Kf7 35.R1b7 Qf4 36.Qf4 Bc3 37.Qh6 Be5 38.g3+-) 34.Rb7 (34.Rb7 Qf4 35.Qf4+-) 1–0. El Jawich,Amro (2240) – Abo_Hazeem,Mohanned (2045), Asian Nations Cup, 2016. (=1.e4 c5 2.a3 d6 3.b4 Nf6 4.Nc3 g6)

5.Nf3 Bg7 6.Rb1 0-0 7.Bb2 a6 8.d3 Nc6 9.bc5 dc5 10.Be2 Nd4 11.0-0 b5 12.e5 Ng4 (12...Nh5 13.Bc1=) 13.Ne4 (13.Nd4 cd4 (13...Qd4? 14.Bf3 Nh2 15.Kh2 Qh4 16.Kg1 Be5 17.g3 Bg3 18.fg3 Qg3 19.Bg2+-) 14.Bg4 Bg4 15.Qg4 dc3 16.Bc3 Qc7=) 13...Nf3 (13...Ne5 14.Nc5 Ndf3 15.Bf3=) 14.Bf3 Ne5 15.Nc5 Nf3 (15...Ra7 16.Be2=+) 16.Qf3 Bf5 17.Bg7 Kg7 18.g4 (18.Qe3 Qd6=) 18...Qd6 (18...Qc8 19.gf5 Qc5 20.fg6 fg6 21.Qe4-/+) 19.Ne4 (19.Nb7 Qb6 20.gf5 Rab8=) 19...Be4=+ 20.Qe4 Rac8 (20...Qa3 21.Rfe1-/+) 21.Rfc1 e6 (21...f5 22.gf5 Rf5 23.Rb4-/+) 22.c4 (22.a4 Rc5=+) 22...Rfd8 23.cb5 ab5 (better 23...Rc1 24.Rc1 ab5=+) 24.Rb5?? (better 24.Rc8 Rc8 25.Rb5 Qa3 26.Qe5 Kg8 27.Rb8 Rb8 28.Qb8 Qf8 29.Qf8 Kf8 30.f4=) 24...Qd3 (better 24...Rc1 25.Kg2 Qa3 26.Qe5 Kg8-+) 25.Qd3= (25.Qd3 Rc1 26.Qf1 Rf1 27.Kf1=) 1-0. De Monts,Louis (1630) - Frey,Thierry (1790), ch-FRA Blitz Online Qual, 2020. (=1.e4 c5 2.a3 d6 3.b4)

5.Nf3 Bg7 6.d3?? Ne4!-+ 7.de4 (7.Ne4 Ba1; 7.de4 Bc3) 7...Bc3 8.Bd2 Bg7 (better is 8...Ba1!? 9.Qa1 f6-+) 9.Rb1-/+ Qc7 10.c3 a6 11.Rc1 c4 12.Qa4 (12.Be2 0-0-/+) 12...b5 13.Qc2 Bb7 14.Be3 Nd7 15.Qd2 (better is 15.Be2!?-/+) 15...Be4 16.Be2 a5 17.Bh6 Bf6 18.Qf4 (18.0-0 Qb7-+) 18...Bc6 (18...Qb7 19.0-0-+) 19.0-0 ab4 20.ab4 Rc8 (20...Qb7 21.Qd2-+) 21.Rfe1 d5 (21...Qb7 22.Qe3-+) 22.Qe3 Ne5 23.h3 (23.Nd4 Qb6-/+) 23...Bb7 (23...Nf3!? 24.Bf3 e6 25.Ra1-/+) 24.Nd4 Qb6 25.Qg3 (25.Bg5!?-/+) 25...Nc6-+ 26.Bg4 Rd8 (26...Nd4 27.Bc8 Bc8 28.cd4 Bd4 29.Rcd1=) 27.Ne6?? (better is 27.Be3 h5 28.Bd1 Nd4 29.Bd4 Bd4 30.cd4-+) 27...fe6 28.Re6 Bc8 (28...Kf7 29.Bf4 Ra8 30.Bc7-+) 29.Re2 (29.Rf6 ef6 30.Re1 Ne7-+) 29...Qb8 30.Qf3 (30.Bf4 Qa8 31.Bc7 Bg4 32.Qg4 Rd7-+) 30...Ne5 (30...Bg4 31.hg4 Qd6 32.g5-+) 31.Qf4 Qd6 32.Bc8 Rc8 33.Rce1 Kd7 34.Bg5? Rce8 35.Qg3?? Nd3 36.Qd6 Kd6 37.Bf6 Ne1 38.Bh8 Rh8 39.Re1 e5 40.g3 Ra8 41.f4 e4 42.g4 Ra2 43.f5 gf5 44.gf5 Ke5 45.Rf1 Kf6 46.h4 Rc2 47.Rd1 Rc3 48.Rd5 Rf3 49.Rb5 Rf5 50.Rf5?? Kf5 51.Kf2 c3 52.Ke3 c2 53.Kd2-/+ e3 54.Kc2= Ke4 55.b5 Kd5 56.Kd3= Kc5 57.Ke3 Kb5 58.Kf4 Kc5 59.Kg5 Kd5 60.h5 Ke6 ½–½. Garcia,Shaina Grace – Gonzales,Alphecca, San Antonio PHI, Ch Girls U10, 2014. (=1.e4 c5 2.b4 d6 3.a3 Nf6)

3.a3 g6

4.Nc3 Bg7 5.Bb2!?=.

4.Nc3 Bg7 5.g3 Nf6 6.Bg2 Nc6 7.Rb1 Bg4 8.f3 Bc8 (8...cb4 9.ab4 Bd7 10.b5=) 9.Nge2 (9.bc5 dc5 10.f4 e5 11.fe5 Ne5=) 9...a6 (9...cb4 10.ab4 0-0 11.d4=) 10.Nd5 (10.bc5 dc5 11.f4 e5=) 10...Nd5 11.ed5 Nd4 12.0-0 (12.Bb2 0-0=) 12...Qc7 (12...0-0 13.Bb2=) 13.c3 (13.Nd4 cd4 14.Re1 0-0=+) 13...Bf5 14.Rb2 Ne2 15.Qe2 0-0 16.Re1 (16.g4 Bc8=) 16...Rfe8=+ 17.g4 (17.bc5 dc5 18.f4 Rad8=+) 17...Bd7 18.Qf2 c4 19.Re4 (19.g5 e6 20.de6 Re6-/+) 19...b5 (19...f5 20.Re3-/+) 20.Qe3 (20.Qh4 e6 21.de6 fe6-/+) 20...f5 21.gf5 (21.Re7!? Re7 22.Qe7-/+) 21...Bf5-+ 22.Rf4 (better 22.a4-+) 22...Bh6 23.Bf1 (23.d4 cd3 (23...Bf4?! 24.Qf4 e5 25.de6-+) 24.Bd2 e5 25.de6 Re6-+) 23...Bf4 (23...e5 24.de6 Re6 25.Qd4 Bf4 26.Qf4-+) 24.Qf4 Qb7 (24...e5 25.Qe3-+) 25.d4 (25.d3 cd3 26.Qd4 e5 27.de6 Re6-+) 25...cd3 (25...Qd5 26.Qg3-+) 26.Qd4 Qa7 (26...e5!? 27.de6 Re6 28.Bh6-+) 27.Be3 Qd4 (27...Qc7 28.Bd3 Bd3 29.Qd3-+) 28.Bd4 e5 29.Bf2? (29.de6 Re6 30.Rd2-+) 29...Rec8 30.Be1 a5 31.Rb3 (31.Bd2 ab4 32.ab4 Ra1-+) 31...ab4 32.ab4 (32.cb4 Rc1 33.Kf2-+) 32...Ra2 0–1. Foster,Duncan – Di Giandomenico,Alfonso, FICGS, 2015. (=1.e4 c5 2.a3 d6 3.b4 g6)

4.Nc3 Bg7 5.g3 Nf6+= 6.Bg2 Nc6 7.bc5 dc5 8.Rb1 0-0 9.Nf3 Ne8 10.0-0 Nd6 11.Re1 Bg4 12.Nd5 e6 13.Ne3 h5 14.Qe2 (worse is 14.Ng4 hg4 15.Nh4 g5-/+) 14...Qd7 15.Qd1 Rad8 16.h3 (worse is 16.Ng4 hg4 17.Nh4 g5-/+) 16...Bf3 17.Qf3 Qe7 18.a4 h4 19.c3 b6 20.Qe2 hg3 21.fg3 Qc7 22.Rd1 Ne8 23.g4 Qg3 24.Qf2 Qd6 25.Ba3 Qd3 26.h4 Nd6 27.Qf4 Be5 28.Qf1 Qf1 29.Rf1 Kg7 30.h5 gh5 31.gh5 Rh8 32.Bf3 Bf4 33.Bb2 Be3 34.de3 Kh6 35.Kg2 Ne5 0–1. marekt – Board_Pirate, ChessWorld.net, 2013. (=1.e4 c5 2.b4 d6)

4.bc5 Bg7 5.c3 dc5 6.Nf3 Nc6 7.Bc4 Nf6 8.Qe2 0-0 9.e5 Ng4 10.e6 f5 11.h3 (11.0-0!?=+) 11...Nge5-/+ 12.Ne5 Ne5 13.Ba2 (13.0-0-/+) 13...c4 14.0-0? (14.Bc4 Nc4 Combination) 14...Qd3?? (14...Qc7 15.a4 Qc6 16.f4-+) 15.Re1 (better 15.Qd3!? cd3 16.a4=) 15...Qe2 (15...f4 16.Qe4-/+) 16.Re2-/+ b5 (worse 16...Be6 17.d4 cd3 18.Be6 Kh8 19.Re1+/-) 17.a4 a6 18.Ba3 Re8 (18...Be6 19.d4+/-) 19.Bc5 Nd3 (19...Bb7 20.Bd4 Nd3 21.Bg7 Kg7 22.Na3-/+) 20.Bb6 (20.ab5 ab5 21.Bc4 Ra1 22.Bd3 Kf8-/+) 20...Bb7 21.Na3 Nb4 (21...Nf4 22.Ree1 Ng2-+) 22.ab5? (better 22.f3=+) 22...ab5-+ (22...Na2?! 23.Ra2 ab5 24.Bc5=+) 23.Bc5 Na2?? (better 23...Nd3 24.Nb5 Nc5-+) 24.Ra2= Bc6 25.Bb4 Bf6 26.Ra1 Kg7 27.Ree1 Ra4 28.Nc2 Rea8 29.Ra4 Ra4 30.Ne3 (30.Bc5!?=+) 30...Ra2-/+ 31.g4 (31.Nf1 Be4-/+) 31...f4 32.Nf1 g5 33.Rd1 (33.Bc5 Bd5-/+) 33...Bf3 34.Rb1 h5 35.Nh2 Be2 (35...hg4 36.Ng4 Rd2 37.Kf1-+) 36.f3 (36.gh5 Bh5 (36...Rd2?! 37.Ng4=+) 37.Ng4 Rd2-+) 36...Bd3 37.gh5?? (better 37.Rd1-+) 37...Bb1 38.Bc5 (38.Ng4 Bf5 39.h6 Kg6-+) 38...Kh6 (38...Bf5 39.Ng4-+) 39.Bf2 (39.Ng4 Kh5 40.Nf6 ef6-+) 39...Kh5 40.Ng4 Kg6 41.h4 Bd3 (41...gh4!? 42.Nf6 Kf6 43.Bh4 Ke6 44.Bg5 Rd2 45.Bf4-+) 42.h5 Kg7 43.h6 Kg6 44.h7 Kh7 45.Nf6 ef6 46.e7 Ra8 (46...Bg6 47.Bd4 Kg7 48.Bc5-+) 47.Bc5 Re8 48.Kf2 Kg6 49.Bd6 f5 50.Bc5 g4 51.Bd4 (51.Bd6-+) 51...g3 52.Kg2 Kf7 (better 52...Re7 53.Be3 fe3 54.de3 f4 55.Kg1 Re3 56.Kg2 Re1 57.Kh3 Kh5 58.Kg2 Bf1 59.Kg1 Bh3) 53.Kh3 (53.Kh3 Bf1 54.Kh4 Kg6 55.Be5 g2 56.d4 g1Q 57.Bf4 Qf2 58.Bg3 Rh8). munster1 (2510) - alifie (2450), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.a3 d6 3.b4)

3.Bb2 a6

4.Bc4 e6 5.d4 (better is 5.bc5!? Nf6 (5...dc5 6.a4 Nf6 7.e5 Nd5 8.Nf3 Be7 9.0-0 0-0 10.Qe2 Nc6= 0.12) 6.cd6 (6.Qf3 dc5 7.e5= Nfd7 8.Nh3 Nc6 9.Qh5 g6 10.Qe2 b5= –0.25) 6...Ne4 7.Nf3 Bd6 8.0-0 Nf6 9.a4 0-0 10.Qe2 b6= –0.09) 5...b5 (5...cb4 6.Bd3 d5 7.Nd2 de4 8.Ne4 Nf6 9.Nf3 Be7 10.Nf6 Bf6+= –0.44; 5...d5 6.ed5 ed5 7.Be2 cb4 8.Nf3 Nf6 9.0-0 Bd6 10.a3 0-0-/+ –0.84) 6.Bd3 cd4 (6...c4 7.Be2 d5 8.ed5 Bb4 9.c3 Bd6 10.de6 Be6= –0.25) 7.Bd4 Nc6 8.Bc3 (8.c3 Nf6 9.Bf6 Qf6 10.a4 Nb4+= –0.34) 8...Bb7 (8...d5 9.a3 de4 10.Be4 Qd1+= –0.28) 9.Ne2 (9.a4 d5 10.ab5 Nb4= 0.19) 9...Nf6 (9...d5 10.Qd2 Nf6+= –0.50) 10.0-0 Be7 (10...d5+= –0.28) 11.f4 0-0 12.Qe1 d5 13.ed5 Nd5 14.Bg7? (better is 14.a3+=) 14...Kg7-+ 15.Qg3 Kh8 16.Qh3 f5 17.c3 (17.a3 Qb6 18.Kh1 Rg8-+) 17...Qe8 (17...Ncb4 18.cb4 Bf6 19.Nec3-+) 18.Rf3?! (18.a4 ba4 19.Re1 Rg8-+) 18...Rg8 (18...Ncb4!? 19.cb4 Bf6 20.Nec3 Nc3 21.Nc3 Bf3 22.Qf3 Bc3 23.Rb1-+) 19.Nd2 Qf7 20.Re1 Qf6 21.Bc2 Qh4 22.Qh4 Bh4 23.Ref1 Rad8 24.Nb3 Be7 25.Rh3 Nb6 26.Rf2 Nc4 27.Ned4 Nd4 28.Nd4 Bd5 29.Bd3 Bf6 30.Ne2 Nb6 31.Bb1 Bc4 32.Re3 Rd1 33.Rf1 Rgd8 34.Bc2 Rf1 35.Kf1 Rd2 36.Bb3 Re2 37.Bc4 Re3 38.Bb3 Nc4 39.Kf2 Rc3 40.Ke2 Re3 41.Kf2 Re4 42.Kg3 Bc3 43.Kh3 Bb4 44.g3 a5 45.Kg2 a4 46.Bc4 bc4 47.a3 Ba3 48.g4 c3 49.gf5 ef5 50.h4 c2 51.h5 c1Q 52.h6 Re3 53.Kf2 Qd2 54.Kf1 Re1 0–1. Skoczek,Karolina – Marczuk,Anna (1605), Chelm Poland, 2010. (=1.e4 c5 2.b4 d6 3.Bb2 a6)

4.Nf3 cb4!? 5.a3 Qa5 -/+.

4.Nf3 Nf6 5.bc5 dc5 6.e5 Nd5 7.c4 (7.Ba3 e6+=) 7...Nf4 (7...Nb4 8.Nc3+=) 8.Nc3 Nc6 (8...e6 9.Qb3=) 9.g3 (9.Na4 e6 10.g3 Ng6=) 9...Ng6 (9...Nd3 10.Bd3 Qd3 11.Qe2 Qe2 12.Ke2+=) 10.Ne4 (10.Na4 Qc7 11.Be2 Bg4-/+) 10...Bg4 (10...b6 11.Qa4 Qc7 12.Nfg5=) 11.Nc5 Nge5 (11...e6 12.Nd3= (12.Nb7? Qb8 13.Bg2 Qb7-+)) 12.Be2 (12.Be5 Ne5 13.Be2 Qd6 14.Ne5 Qe5=) 12...Bf3 13.Bf3 Qb6 (13...Qc7 14.0-0 Nf3 15.Qf3=) 14.Be5 Qc5 15.d4 Qb4 16.Kf1 f6 17.Bf4 Rd8 (17...Qc4 18.Kg2 Rd8 19.Qc1+=) 18.Be3 (18.Qb3 a5=) 18...e5 (18...Qc4 19.Qe2 Qe2 20.Ke2 Nd4 21.Bd4 Rd4 22.Bb7=) 19.Rb1 Qc4 20.Kg2 Rd7 (20...ed4 21.Bf4 Rd7 22.Re1 Kf7 23.Rc1=) 21.Qd2 Be7 22.Rhc1+/- Qa4? 23.Bd1?? Qa3 24.Bg4 Rd8 25.Rb7+- Nd4 26.Rcc7 Bd6 27.Rg7 h5 28.Bh3 Qa4 29.Bd4 Qd4 30.Bf5!! Mate threat 30...Ra8 31.Bg6 Kd8 32.Qa5 (32.Qa5 Qb6 33.Qb6 Kc8 34.Bf5) 1–0. Duran Cuevas,Andres (2020) – Gonzalez Marquez,Arturo (2115), Mallorca–ch, 2001. (=1.e4 c5 2.b4 d6)

4.f4 cb4 5.Nf3+=.

4.f4 e6 5.Nf3 (5.bc5 dc5 6.Nf3 Nf6=) 5...Nf6 (5...cb4 6.Bd3+=) 6.e5 Nd5 7.bc5 dc5 8.g3 Qb6 9.Bc3 Qc7 10.Bg2 Nc6 11.0-0 Bd7 12.d4? (12.Ng5!?=) 12...Nc3 (12...Ne3 13.Qd3 Nf1 (13...Ng2?! 14.Kg2 Rd8 15.dc5-/+) 14.Bf1 cd4 15.Nd4 Rc8-+) 13.Nc3-/+ cd4 14.Ne2 (14.Nd4?? Nd4 15.Ne4 Nc2-+) 14...Bc5 15.Nfd4 Nd4 16.Nd4 Bb5 17.Re1 Rd8 18.c3 Bc6 19.Kh1 Bg2 20.Kg2 g6 (20...0-0!?-/+) 21.Qa4= Kf8 22.Rad1 Kg7 23.Qb3 Rhe8 24.Rd2 b5 25.Red1 Qb7 26.Kh3 Bb6 27.a3 h5 28.Rd3 Qe4 29.Qb2 g5 30.fg5 Qe5 31.Qd2 Qe4 32.Qf4 Qf4 33.gf4 Rc8 34.Kh4 Bd4 (34...Rc4!?+=) 35.cd4= Kg6 36.d5 Rc5 (36...Rc4 37.Rf3=) 37.Rd4 ed5 38.Rd5 Rc4 39.Kg3?? (better is 39.R1d4!? Rd4 40.Rd4=) 39...Ree4 (better is 39...Re3!? 40.Kf2 Ra3 41.Rd6 Kg7-+) 40.Rf1 Re3 41.Rf3 ½–½. Tarasov,Aleksei – Altunbay,Onder, Budva MNE, 2013. (=1.e4 c5 2.b4 d6 3.Bb2 a6)

4.bc5 dc5

5.Ba3 Nf6 6.Bc5 Ne4+=.

5.Nc3 Nc6 (5...b5 6.Nf3 b4 7.Ne2 Nf6 8.Ng3 e6 9.Bd3 Be7 10.Bf6 gf6= 0.19; 5...Nf6 6.Nf3 Nc6 7.a4 e5 8.Bc4 Bd6 9.0-0 0-0 10.Rb1 Nd4= –0.22; 5...e5 6.Nf3 Bd6 7.Bc4 Nf6 8.a4 0-0 9.Rb1 Nc6 10.0-0 Nd4= –0.22) 6.Nf3 Nf6 7.Be2 e5 8.d3 Bd6 9.Bc1 0-0 10.Bg5 h6+=.

5.Bc4 Qb6 (5...b5 6.Bd5 Ra7 7.Bf7 Kf7 8.Qh5 g6 9.Qe5 Nf6 10.Qb8 Rb7+/- 0.72; 5...Nf6 6.e5 Nd5 7.Qf3 e6 8.Nc3 Nb4 9.Rc1 N4c6 10.Nce2 Nd7= –0.19; 5...e6 6.a4 Nf6 7.e5 Nd5 8.Nf3 Be7 9.0-0 0-0 10.Qe2 Nc6= 0.12) 6.Bc3 Qg6 7.Qf3 Nc6 8.e5 Nh6 9.Bd5 Bg4 10.Qe3 Qc2 =.

5.Qf3 Nc6 (5...e6 6.Nc3 Nc6 7.Qg3 b5 8.Nf3 c4 9.Be2 Nf6 10.e5 Nd5= 0.09) 6.Bc4 Nf6 7.a4 e5 8.Nc3 Be7 9.Nd5 0-0 10.Nf6 Bf6 =.

5.Nf3 Nf6 (5...Nc6 6.Nc3 b5 7.Be2 b4 8.Nd5 e6 9.Ne3 Nd4 10.a3 ba3= 0.22; 5...Qb6 6.Qc1 Nf6 7.Nc3 Qe6 8.d3 Nc6 9.Qe3 b6 10.Be2 Ra7+= 0.28; 5...Nd7 6.Bc4 e6 7.a4 Ngf6 8.e5 Nd5 9.0-0 b6 10.Nc3 Bb7+= 0.31) 6.Nc3 Nc6 7.Be2 e5 8.0-0 Bd6 9.a4 0-0 10.Bc4 Nd4 =.

3.Bb2 b6

4.Bb5 Bd7 5.Bc4 e6 6.b5 Nf6 7.e5 de5 8.Be5 a6 9.Qf3 Ra7 10.Qg3 ab5=+ 11.Bb8 Rb7 12.Be6 Be6 13.Be5 Be7 14.Ne2 0-0 15.0-0 b4 16.a3 Ng4 17.Qf3 Ne5 18.Qb7= Bd5 19.Qa6 Bc4 20.Qb7 Be2 21.Re1 Bb5 22.Re5? Bf6-+ 23.Qe4 Be5 24.Qe5 Re8 (24...Re8 25.Qe8 Qe8-+) 0–1. Bungo,G – Bono,G, USA–op Chicago, 1994.

4.Bc4 cb4?? 5.Bd5 +-.

4.Bc4 Bb7 5.Nf3 Nf6 6.e5 Nfd7 (6...de5 7.Ne5 e6 8.Bb5 Nbd7 9.bc5 Bc5 (9...Bg2? 10.Rg1+-) 10.Nd7 Nd7=) 7.Bf7 (7.e6 fe6 8.Ng5+/-) 7...Kf7+= 8.e6 Kg8 (8...Ke6 9.Ng5 Kf5 10.Qh5+-) 9.Ng5 (better is 9.ed7!? cb4 10.c3 bc3 11.Qb3 d5 12.Qc3+=) 9...Nf6-/+ 10.Bf6 ef6 (10...gf6?? 11.Qh5 Kg7 12.Nf7+-) 11.Nf7 Qe7 12.Qg4 g6 (12...h5!? 13.Qf5 Rh7-+ (13...Bg2?! 14.Rg1 Bc6 15.Nh8 Kh8 16.Nc3+=)) 13.Nh8 Kh8 14.0-0 f5 15.Qe2 Bg7 16.bc5 (16.c3 cb4 17.Re1 Nc6-+) 16...dc5 (better is 16...Ba1!? 17.cd6 Qg5 18.f4 Bd4 19.Kh1-+) 17.c3 Ba6 (17...Nc6 18.Re1-+) 18.d3? (better is 18.Qf3 Qb7 19.Qb7 Bb7 20.Na3-/+) 18...Nc6-+ 19.f4 (19.Rd1 Re8 20.Re1 Qd6-+) 19...Rd8 20.Rf3 (20.Rd1 Nd4! 21.Qf2 Ne6-+) 20...Rd6 (better is 20...Nd4 21.cd4 Bd4 22.Kh1 Ba1 23.Nd2-+) 21.Re3 Nd8 22.a4 Re6 23.Re6 Qe6 24.Ra2 Kg8 25.Kf2? (25.Rd2 Kf7 26.Qe6 Ne6-+) 25...Qe2 (better is 25...Bd3 26.Qe6 Ne6-+) 26.Ke2 Ne6 27.Ke3 Kf7 28.g3 h5 29.Rc2 Ke7 30.Na3 Kd6 (30...Bb7 31.Nc4-+) 31.Nb5 Bb5 32.ab5 Bf6 33.h4 Nc7 34.c4 a6 35.ba6 Na6 36.Ra2 Nc7 37.Kf3 Kc6 38.Ra7 Bd4 39.Ra2 Kd6 ½–½. Chaves,Jorge Antonio (2145) – Litrento,Oliveiros Lessa (1830), Moacyr Tavares Memorial, 2005. (=1.e4 c5 2.b4 d6)

3.Bb2 Nc6

4.b5 Nb8 5.Nf3 Nf6 6.Nc3 Bg4 7.h3 Bf3 8.Qf3 a6 9.e5! Ng8? 10.Qb7+- Nd7 11.Nd5 Rc8 12.ba6 e6 13.Ne3 Rb8= 14.Qc6 Rb2? 15.Bb5 Rb5+= 16.Qb5 Ne7 17.ed6 Nc8 18.Nc4?? Bd6?? 19.a7!+- Qf6?? 20.0-0 Qf4 21.Nd6 Nd6 22.a8Q Ke7 23.Qd7! Kd7 24.Qh8 Ne8 25.Qh7 f5 26.a4 Qg5 27.a5 Ke7 28.a6 Kf7 29.a7 Nf6 30.Qh8 Ng8 31.a8Q (31.a8Q f4 32.Qhg8 Kf6 33.Qgf8 Kg6 34.Qae8 Kh7 35.Qh8) 1–0. Rumyantsev,Nikolaj (1805) – Shihaliev,Leonard, Uliyanovsk RUS, Povolje Open, 2011.

4.b5 Nd4 5.c3 Ne6+= 6.Bc4 Nf6 7.d3 g6 8.Nf3 Bg7 9.Qd2 0-0 10.0-0 d5 11.ed5 Nd5 12.Bd5 Qd5 13.c4 Qd6 14.Bg7 Kg7 15.Nc3 Nd4 16.Nd4 Qd4 17.Ne2 (17.Rae1 Bf5 18.Re7 Bd3=) 17...Qf6 18.Rad1 Rd8 19.Qe3 b6 20.a4 e5 21.a5 Bf5 22.Nc3 Qd6 23.Rd2 Rd7 24.Rfd1 Rad8 25.f3 h5 26.ab6 ab6 27.Kf2 Be6 28.Ne4 Qc7 29.Qg5= Bf5 30.Nf6 Rh8 31.Nd7+- Qd7 32.Qe3 f6 33.Ra1 Rd8 34.Ra6 Qd6 35.Ra7 Bd7 36.Qe4 Kh6 37.Qe3 g5?? 38.h4 Bf5 39.hg5 fg5 40.Ke2 Re8 41.Rd1 Qg6?? 42.g4! e4 43.gf5 ef3 44.Kf2 Qg8 45.Qf3 Qf8 46.Qc6 (46.Qc6 Qd6 47.Qd6 Re6 48.Qe6) 1–0. Shabanaj,Saimir (2170) – Batricevic,Bozo (1770), Cetinje MNT, Batricevic Mem, 2012. (=1.e4 c5 2.b4 d6)

4.b5 Nd4 5.c3 Ne6 6.d4 Bd7 (6...Nf6!? 7.Nd2 g5=+) 7.d5= Nc7 8.c4 e5 9.g3 (9.Nc3 g6+=) 9...Nf6 (9...Be7 10.Nd2=) 10.Bg2 Be7 11.Ne2 (11.Nc3 0-0=) 11...Bg4 (11...h5!?=) 12.h3+= Bh5 13.0-0 0-0 14.Nd2 a6 15.a4 Nd7 16.g4 Bg6 17.Ng3 Ne8 18.Bc3 b6 19.Qb3 (19.Nf5 h6+-) 19...a5 20.Kh1 (20.Nf3 Bg5+=) 20...Bf6 (20...Bg5 21.Qc2+=) 21.Rg1 h6 22.Nf3 Kh8 23.Bd2 Rg8 24.Qd3 Nf8 25.Be3 Nh7 26.Qd2 Ra7 27.Kh2 Rd7 28.Bf1 (28.Nf5 Ra7+=) 28...Rf8 (28...Ng5 29.Ng5 Bg5 30.Bd3=) 29.Be2 (29.Bd3 Ng5 30.Ne1 Nh7+=) 29...Be7 (29...Ng5 30.Qd3=) 30.Rg2 (30.Bd3 Ng5 31.Ne1 Nh7+=) 30...Nef6 (30...Ng5!? 31.Qd3 Nf3 32.Bf3 Bg5=) 31.Bd3+= Ng8 32.Rh1 (32.Rgg1 Ng5 33.Ne1 Nh7+-) 32...Bh4 (32...Ng5 33.Ne1 Nh7 34.Kg1+=) 33.Nh4 (33.Nf5 Bg5 34.Ng5 Ng5+-) 33...Qh4+= 34.Nf5 Qd8 (34...Bf5!? 35.gf5 Ngf6+=) 35.h4 White prepares g5 35...Bf5 36.ef5 Qh4 37.Kg1 Qe7 38.f6 (38.g5!? f6 39.gh6 gh6 40.Rg4+-) 38...Qf6+- (38...Nhf6 39.Bh6 Nh6 40.Rh6 Nh7 41.Rh7 Kg8 42.Bf5 Rb7 43.Rgh2 g5 44.Rh8 Kg7 45.R2h7 Kf6 46.Rh5 Rg8 47.Rg8 e4 48.Rh6 Ke5 49.Qe3 Qe6 50.Qe4; 38...Ngf6? 39.Bh6 g6 40.Bf8 Qf8 41.Rgh2+-) 39.g5 Qe7 40.Bf5 Rc7 41.Bh7 (41.gh6!? g6 42.Bc2+-) 41...Kh7= 42.Qc2 e4 (42...g6 43.gh6 Qe8 44.Qe4=) 43.Rh4 (43.gh6 g6= (43...Nh6 44.Bh6 f5 45.Bg7 Kg8 46.Rh8 Kf7 47.Bf8 Qf8 48.Rh7 Ke8 49.Rc7 Kd8 50.Ra7 Ke8 51.Ra8 Ke7 52.Rf8 Kf8 53.Qc3 e3 54.Qf6 Ke8 55.Rg8 Kd7 56.Qf7)) 43...Re8 44.f3 f5 45.gf6 (better 45.fe4 fe4 46.Qf2+=) 45...Qf6-/+ 46.Re4 Re4 47.fe4? (47.Qe4 g6-/+) 47...Qa1 (better 47...Qe5!?-+) 48.Bc1 Qd4 (better 48...Kh8 49.Qb2 Qa4-/+) 49.Kh1= Qe5 50.Bb2 Qh5 51.Kg1 Kh8 52.Qc3 (52.Qe2 Qh3=) 52...Qd1 (52...Nf6 53.Qe1=+) 53.Kh2= Qh5 54.Kg1 (54.Qh3 Qe8=) 54...Nf6 55.Qg3? (55.Qe1 Qf3 56.e5 Re7=+) 55...Qd1?? (better 55...Ne4 56.Bg7 Kg8-+) 56.Kh2= Qh5 (56...Ne4 57.Bg7 Kg8 58.Qg6 Qh5 59.Qh5 Rg7 60.Qe8 Kh7 61.Qe4 Kh8 62.Rg7 Kg7 63.Qe7 Kg8 64.Qd6 Kf7 65.Qe6 Kg7 66.d6 h5 67.d7 h4 68.d8Q h3 69.Qdg8) ½–½. Riha,Vojtech (2105) – Urban,Marek (1660), 8th Hradec Kralove Open, 2017. (=1.e4 c5 2.b4 d6 3.Bb2 Nc6)

4.b5 Nd4 5.Bd3 d5 6.Nc3 c4=.

4.Bb5 cb4 5.Nf3 +=.

4.Bb5 cb4 5.Nf3+=.

4.Bb5 Bd7 5.Ne2 (5.bc5 dc5 6.Nf3 Nf6=) 5...a6 6.Bc6 Bc6 7.d3 Nf6 (7...cb4 8.Nd2+=) 8.Bf6 gf6 9.0-0 (9.bc5 dc5 10.Ng3 e6=) 9...Qd7 (9...cb4 10.Nd4+=) 10.Ng3 (10.bc5 dc5 11.Ng3 Rg8=) 10...Rg8 (10...cb4 11.Qd2+=) 11.f4 (11.bc5 dc5 12.Qh5 Rg5 13.Qh7 Qd4+=) 11...Qg4 (11...cb4!? 12.Qd2 f5 13.Nf5 d5+=) 12.Qg4 Rg4 13.c4 (13.a3 e6=) 13...Bh6 (13...cb4 14.Nd2+=) 14.Ne2 (14.Nf5!? Bf4 15.h3+=) 14...f5-/+ 15.Nbc3 fe4 16.de4 f5 (16...cb4!? 17.Nd5 Rc8-/+) 17.Nd5 Bd5 18.ed5 Kd7 19.Rf3 (19.Rab1 b5+=) 19...Rag8 20.Rg3 Rg3 21.hg3 Bg7 22.Rd1 (22.Rb1 b5 23.cb5 ab5 24.bc5 dc5 25.Rb5 Kd6-/+) 22...Bf6 (22...cb4 23.Rb1 a5 24.Kf2-+) 23.Kf2 (better is 23.bc5 dc5 24.a4+=) 23...e5 (better is 23...cb4 24.Rb1 a5-/+) 24.Rh1 ef4? (24...cb4 25.Rh7 Be7+/-) 25.Rh7+- Rg7 26.Rg7 Bg7 27.Kf3 fg3 28.Ng3 Be5 (28...cb4 29.Nf5 Be5 30.Ne3+/-) 29.Nf5 (29.bc5 dc5 30.Nf5+-) 29...Ke8? (29...cb4 30.Ne3+/-) 30.g4 (30.bc5 dc5 31.Ke4 Bh2+-) 30...Kf7? 31.g5 Kg6 32.Kg4 b5? 33.Nh4 Kg7 34.Kf5?? Bg3?? 35.Nf3 cb4? 36.Nd2 Be5?? 37.Ke6 Bf4 38.Ne4?? Kg6?? 39.Nd6 Bg5? 40.Ne4 (40.Ne4 bc4 41.Ng5+-) 1–0. Skorna,Ullrich (2160) – Hartges,Michael (1775), Saarlouis op 2nd, 1999. (=1.e4 c5 2.b4 d6 3.Bb2 Nc6)

3.Bb2 Nd7

4.Bb5 cb4 5.c4+=.

4.Bb5 Qb6 5.Qe2 (5.Nc3!?+=) 5...a6+= 6.Bd7 Bd7 7.a3 cb4 8.Nf3 ba3 9.Bd4 Qc7 10.Na3 Rc8 11.c4 Nf6 12.e5 Ng4 13.0-0 Nh6 14.Ng5 e6 15.f4 (15.Rfb1!?+=) 15...Nf5 16.Bc3 (16.Bf2 de5 17.fe5 Be7-/+) 16...Qc5 (16...d5 17.d4-+) 17.Rf2 (17.Kh1 Bc6-/+) 17...Bc6 (17...d5 18.cd5 Qd5 19.Nc2-/+) 18.g4 Nh4 (better is 18...Nd4!? 19.Qe3 Nb3-/+) 19.d4= Qb6 20.ed6 Qb3 21.Ba5 (21.Qe3!? h6 22.Ne6 fe6 23.Rb2 (worse is 23.Qe6 Kd8 24.Nb5 Rb8+-) 23...Nf3 24.Kf2 Qb2 25.Bb2+-) 21...Bd6= 22.Ne6 Kd7 23.d5 Ba4?? 24.Rb1+/- Qa3? 25.Rb7+- Ke8 26.Nd8 Be7 27.Bb4 Qa1 28.Rf1 Qd4 29.Kh1 Ng6 30.Re7 Kd8 31.Ba5 Rc7 32.Rc7 Rg8 33.Rb1 Bb5 34.cb5 Qd5+- 35.Kg1 Qd4 36.Qf2 Qf2 37.Kf2 1–0. Amargant Masferrer,Jorge – Guedes Lopez,Saul (1750), Gran Canaria op 3rd, 2009. (=1.e4 c5 2.b4 d6)

4.bc5 Nc5 5.Bb5 Bd7 =.

4.f4 cb4 5.Bb5+=.

4.f4 Qb6 5.a3 (5.b5 Ngf6 6.Nc3 e5=) 5...Ndf6 (5...cb4 6.Nf3+=) 6.Qf3 (6.e5 de5 7.fe5 Bg4 8.ef6 Bd1 9.fg7 Bg7 10.Bg7 A) 10...cb4? 11.Kd1 (11.Bh8?! Bc2 12.ab4 Qb4+=) 11...Nf6 12.Bh8+-; B) 10...Bc2 11.Bh8 cb4 12.ab4 Qb4+=) 6...h5 (6...cb4 7.Ne2+=) 7.Bc4 Rh6 (7...cb4 8.Qd3 ba3 9.Bd4=) 8.e5 Nh7 (8...Bg4 9.Qc3 Nd7 10.h3=) 9.Nc3 e6 10.Na4 Qc7 11.bc5 (11.Bb5 Bd7 12.ed6 Bd6 13.Bd7 Qd7 14.Nc5 Bc5 15.bc5 0-0-0+/-) 11...dc5+= 12.Ne2 Bd7 13.Nac3 Bc6 14.Qf2 a6 15.Bd3 0-0-0 16.Ne4 (better is 16.Rb1+=) 16...c4-/+ 17.Nd6 Bd6 18.Bh7 Rh7-/+ 19.ed6 Qd6 20.0-0-0 f6 21.d3 Qc7 22.dc4+= Rd1 23.Rd1 Ne7 24.Qa7 Rh8 25.Bc3 Qb8 26.Qe3+= Bd7 27.Bb4 Nf5= 28.Qf2 Qc7 29.Nd4 e5 30.fe5 Qe5= 31.Nf5 Bf5?? 32.Qb6 Qa1?? 33.Kd2+- Qe5 34.Bd6 Qd6 35.Qd6 Rd8 36.c5 Rd6 37.cd6 Kd7 38.Kc3 Kc6 39.Kb3 b5 40.Rd2 a5 41.c3 Kd7 42.a4 ba4? 43.Ka4 1–0. Haemmerlein,Thomas – Borris,Gerd, Berlin–chT, 1996. (=1.e4 c5 2.b4 d6)

4.f4 e6 5.Nf3 (5.b5 Ngf6 6.Nc3 Be7=) 5...Ngf6=+ 6.d3 (6.a3 d5 7.e5 Nh5=) 6...Be7 (6...cb4 7.Nbd2-/+) 7.Nbd2 a6 (7...cb4 8.Be2-/+) 8.Be2 (8.bc5!? Nc5 9.Be2=) 8...cb4=+ 9.a3 Ng4 10.Nf1 (10.Qc1 ba3 11.Ra3 d5=+) 10...ba3 11.Ba3 Qb6 (better 11...0-0-/+) 12.Nd4? (12.d4 0-0=+) 12...Nf2?? (better 12...Qd4 13.Bg4 f5 14.ef5 ef5 15.Bf5 0-0-+) 13.Kf2-/+ Qd4 14.Ke1? (14.Ne3!?-/+) 14...Qc3 (14...e5 15.f5-+) 15.Nd2 b5 16.Ra2 (better 16.Qc1-/+) 16...Nb6 (better 16...0-0!?-+) 17.Bb2-/+ Qc7 (17...Qc6 18.Bg7 Rg8 19.Bd4 Rg2 20.Kf1=+) 18.Nf3 (18.Bg7 Rg8 19.Qa1 Nd7=+) 18...Na4 (18...0-0 19.Kf2-/+) 19.Ba1 (19.Bg7!? Rg8 20.Bd4-/+) 19...Bf6-+ 20.Bf6 (20.Kf2 Nc3 21.Bc3 Bc3-+) 20...gf6 21.Qa1 (better 21.Qd2 Rg8 22.g3-+) 21...Qc3?? (better 21...Nc3-+) 22.Kf2=+ Qa1 23.Raa1 (23.Rha1 Nc3 24.Ra3 b4=+) 23...Bb7 (23...Nc3 24.Nd4-/+) 24.c4=+ bc4?? (better 24...Kd7=+) 25.Ra4+- cd3 (25...d5 26.ed5 cd3 27.Bd3 Bd5 28.Rha1+-) 26.Bd3 Ke7 27.Nd4 Rhb8 (27...f5 28.ef5 Rhg8 29.Nf3+-) 28.Rc1 (better 28.Rb4 Kd7 29.Rhb1+-) 28...Bc8 (28...Rc8 29.Rb1 Rc7 30.Rc4+-) 29.Rc7 (better 29.Nc6 Kd7 30.Nb8 Rb8 31.Ba6 Rb2 32.Kf3 Rb3 33.Kg4 Bb7 34.Bb7 Rb7+-) 29...Bd7 (29...Ke8 30.Kg3+-) 30.Nc6 (30.Ba6?! Kd8 31.Rd7 Kd7 32.Bb5 Kc7 33.Rc4 Kb6 34.Rc6 Kb7 35.Rd6 Ra2 36.Ke3 Kc8+-) 30...Ke8 31.Nb8 Ba4 32.Na6 Kf8 33.Ke3 Kg7 34.h3 Rh8 (34...h5 35.g3+-) 35.f5 Re8 (35...ef5 36.ef5 Re8 37.Kd4+-) 36.fe6 Re6 37.Bc4 d5 38.Bd5 (better 38.Nc5 Rc6 39.Rc6 (39.Na4?! Rc7 40.Bd5 Rc2+-) 39...d4 40.Kf4 Bc6 41.Nb3+-) 38...Ra6 39.Rf7 Kg6 (39...Kh6 40.Re7 Rb6 41.Bg8+-) 40.Kf4 (better 40.Re7!? Kh6 41.Be6+-) 40...Rd6 41.Ra7 Bc6?? (better 41...Bd7+-) 42.Ra6+- Rd5 43.ed5 (43.Rc6?! Rb5+=) 43...Bd5 44.g3 (better 44.g4 h6+-) 44...Bc4 45.Rb6 Bd3 (45...h5 46.h4+-) 46.g4 Kf7 47.h4 Be2 (47...Ke7+-) 48.Rb7 Kg8 49.Re7 (49.Kf5 Bf3 50.Re7 Bg2 51.Kf6 Kf8 52.g5 Bf3 53.h5 Bh5 54.Rh7 Ke8 55.Rh5 Kd7 56.g6 Kc8 57.g7 Kb7 58.g8Q Kc7 59.Qc4 Kb6 60.Rb5 Ka7 61.Qa4) 49...Bd3 50.h5 h6 51.Rd7 Bb1 52.Rd6 Kg7 53.Rd1 Bc2 54.Rc1 Bd3 55.Rd1 Bc2 56.Rd4 Bb1 57.Rb4 Bc2 58.Ke3 Kf7 59.Rc4 Bb1 60.Rf4 (60.Kd4 Ba2 61.Rb4 Ke7+-) 60...Ke6 (60...Bc2 61.Rd4+-) 61.Rb4 Bc2 62.Kf4 (62.Rb7 Ke5+-) 62...Kf7 63.Kf3 (63.Rc4 Bb1+-) 63...Ke6? (63...f5 64.Kg3 fg4 65.Kg4 Bd1 66.Kh4 Bc2+-) 64.Kg3 (64.Rc4 Bd3 65.Rc7 Kd6+-) 64...Kf7 65.Rd4 Ke6 (65...f5 66.Rd6 Kg7 67.Rg6 Kh7 68.Rc6+-) 66.Kf2 (66.Rc4 Bd3 67.Rc7 Ke5+-) 66...Ke5 (66...f5 67.Rc4 Bd1 68.Rc6 Kf7 69.gf5 Bh5 70.Ke3+-) 67.Ke3 Ke6 68.Rf4 Ke5?? (68...Bb1 69.Rf1 Bh7+-) 69.Rc4+- Bd1 (69...Bb1 70.Rc5 Ke6 71.Rc7+-) 70.Kd2 (better 70.Re4 Kd5 71.Rd4 Ke5 72.Rd1+-) 70...Bf3 71.Ra4 Be4 (71...Bc6 72.Ra6 Bf3+-) 72.Ke3 Bc2 73.Ra8 Ke6 74.Rh8 Kf7 75.Rb8 Bd1 76.Kf4 Bc2 77.Rb7 Kg8 78.Rc7 Bb1 79.Ke3 (79.Rc1 Bd3 80.Rc6 Kg7+-) 79...Ba2 (79...Bh7 80.Rc5 Bb1 81.Rc6+-) 80.Re7 (better 80.Rc1!? Bd5+-) 80...Bb1 81.Kd4 Bc2 82.Kc5 (82.Re1!? Bb3+-) 82...Bd1 (82...f5 83.gf5 Bf5 84.Kd4+-) 83.Re4 Kf7 84.Kd6 (84.Rd4 Bc2+-) 84...Bf3 (84...f5 85.Re7 Kf6 86.Re6 Kg5 87.Rg6 Kf4 88.gf5 Kf5 89.Rh6=) 85.Rf4 Bd1 (85...Bg2+-) 86.Rc4?? (better 86.Kd5+-) 86...f5+= 87.gf5 Bh5?? (better 87...Kf6=) 88.Ke5 Bf3 (88...Kg7+-) 89.Rc7 Kf8 (89...Ke8+-) 90.Kf6 Ke8 91.Rh7 h5 (91...Bd5 92.Kg7 h5 93.Rh8 Kd7 94.f6+-) 92.Kg5 (better 92.Kg6+-) 92...Kf8 93.Kf6 Ke8 94.Kg7 Bd5 95.Rh5 Bf7 (95...Bb3+-) 96.Rh8 Ke7 97.f6 Ke6 98.Rf8 Bh5 99.Rb8 1–0. Gonzalez Delgado,H A (1895) – Florez Castro,E (1715), Superate Intercolegiados – Final Nacion, 2014. (=1.e4 c5 2.b4 d6 3.Bb2 Nd7)

3.Bb2 e6

4.bc5 dc5 5.Nc3 Nc6 6.g3 Nf6 7.Bg2 Be7 8.Nge2 a6 9.a4 Rb8 10.d3 b5 11.ab5 ab5 12.0-0 b4 13.Nb1 0-0 14.Nd2 Bb7 15.Nc4 Nd4 16.f4 Qd7 17.h3 Ne8 18.Na5 Ba8 19.Nd4+/- cd4 20.Nb3 Nc7 21.Bd4 Nb5 22.Bb2 Rfc8 23.Qd2 Nc3 24.Kh2 f5 25.ef5 ef5 26.Ba8 Ra8 27.Ra8 Ra8 28.Bc3 bc3 29.Qc3 Rc8 30.Qd2 Qb5 31.Qg2 Bf6 32.Re1 h6 33.Re2 Kh7 34.Qf2 Qd5 35.Qe3 Kg6 36.g4 fg4 37.hg4 Qd6 38.Kg2 Qd7 39.Qe4 Kf7 40.f5 Kf8 41.c4 Rd8?? 42.Nc5 (42.Nc5 Qd6 43.Ne6 Kf7 44.Nd8 Qd8 45.c5+-) 1–0. Kudelka,Janusz (2070) – Weglarz,Joanna (2010), DMR KPZSzach, 2007.

4.Nf3 Nf6 5.d3 (5.bc5!? Ne4 6.cd6=) 5...cb4+= 6.a3 ba3 7.Ba3 Qa5 8.Nbd2 Qc7 9.Bb2 e5 10.h3 Be7 11.Nc4 Be6 12.Ne3 Nfd7 13.Be2 0-0 14.g4 Qc6 15.c4 Qb6 16.Rb1 Qa5 17.Kf1 b5 18.cb5 Nc5 (worse is 18...Qb5 19.d4 Qb7 20.d5+/-) 19.Nf5 Re8 20.Nd2 g6 (worse is 20...Qb5 21.d4 Qc6 22.dc5 Qc5 23.Kg2+-) 21.Ne7 Re7 22.d4 ed4 23.Bd4 Ba2 24.Ra1+- Ne4 25.Ne4 Re4+= 26.Bf3 Qb5 27.Kg1 Bd5 28.Be4 Be4 29.Qc1 Nc6 30.Bf6 Ne5 31.Be5? Bh1-/+ 32.Bf6 Qd5 33.Qf1 Qe6 34.g5 Bd5 35.Re1 Qf5 36.Qe2 Be6 37.Qd2 Qh3 38.Qd6 Qg4 39.Kh2 Qf3 40.Qg3 Qg3 41.Kg3 a6 42.Ra1 Kf8 43.Kf4 a5 44.Ra3 a4 45.Ke3 Bb3 46.f4 Ke8 47.Kd3 Kd7 48.Kc3 Rc8 49.Kb4? Rc4 50.Kb5 Rf4 51.Ra1 Rh4 52.Bg7 Rh5 53.Rg1 Ke6 54.Re1 Kf5 55.Re5 Kf4 56.Rc5 f5 57.gf6 Rc5 58.Kc5 h5 59.Kd4 h4 60.Bf8 h3 61.Kd3 g5 62.Ke2 g4 63.Bc5 g3 64.Bd6 Kg4 0–1. Recoder Creus,Jordi (1965) – Jimenez Ruano,Adrian (1730), Llinars del Valles ESP, 6th Open, 2012. (=1.e4 c5 2.b4 d6)

3.Bb2 Nf6

4.Bc4 e6 5.Qe2 Be7 (5...cb4!? 6.Nf3 Nc6+=) 6.bc5= dc5 7.Nf3 a6 8.a4 Nc6 9.0-0 0-0 10.e5 Nd5 11.Qe4 b6 12.h4 (12.Re1 Ncb4=) 12...Bb7 13.Bd3 g6 14.h5 Ndb4 15.hg6 hg6 16.Ra3 Qc7 17.Bc4? (17.Qc4 Nd3 18.Rd3 Nb4-/+) 17...Na5 (better is 17...Nd4!? 18.Qg4 Bf3 19.gf3 Nbc2-+ (19...Qe5?! 20.c3 Nf5 21.d4+=)) 18.Qg4-/+ Nc4 19.Qc4 Bd5 (19...Bc6 20.Qc3-/+) 20.Qg4+= Kg7 21.c4 Bc6 22.Ng5 Bg5 23.Qg5 Qd8 24.Qg3 Rh8 25.f4 Qh4 26.Kf2 ½–½. Sellberg,Joel – Vuorimies,Riikka, FIN–chT, 2000. (=1.e4 c5 2.b4 d6 3.Bb2 Nf6)

4.bc5 dc5 5.e5 Nd5 6.Nc3 e6 7.Nf3 Nc6 8.g3 (8.Bb5 Bd7=) 8...Be7 9.Bg2 0-0 10.0-0 a6 11.a4 Qc7 12.Ne4 Rb8 13.c4 Ndb4 14.Nf6 (14.Qb1=) 14...Kh8?? (14...gf6 15.ef6 Bd6=) 15.Qb1 g6 (15...gf6?? 16.ef6 Rg8 17.fe7 e5 18.Ne5 Ne5 19.f4+-) 16.Qe4 Kg7 17.Rad1 b5 18.d3 (better is 18.cb5!? ab5 19.ab5 Rb5 20.Ra1+=) 18...ba4= 19.Qh4 Rh8 20.Bc1 h5 21.Bf4 Bb7 22.Rfe1 Nc2 23.Re4 N6b4-+ 24.Ng5 Be4 25.Be4 Nd4 26.g4?? Ne2 27.Kh1 Nf4 28.gh5 Nh5 29.f4 Nf6 30.ef6 Bf6 31.Qf2 Bg5 32.fg5 Rh2! (32...Rh2 33.Qh2 Rh8 34.Qh8 Kh8-+) 0–1. Kalendovsky,Jan – Rerabkova,Lucie, Olexa Memorial op, 1999. (=1.e4 c5 2.b4 d6)

4.bc5 Nc6 5.cd6+= ed6 6.Nc3 g6 7.Qf3 Ne5 8.Qe3 Neg4 9.Qd4 Bg7 10.h3 Ne5 11.Bb5 Nfd7? (better is 11...Nc6+/-) 12.Qd6+- a6? (12...Qh4 13.0-0-0 Nc6 14.Nd5 (14.Bc6?! bc6 15.g3 Qd8+-) 14...Bb2 15.Kb2+-) 13.Bd7 (better is 13.Nd5 ab5 14.Nc7 Qc7 15.Qc7 0-0+-) 13...Bd7? (better is 13...Qd7 14.Qd7 Bd7+-) 14.Nd5 Rc8 (14...Nd3 15.cd3 Bb2 16.Nc7 Qc7 17.Qc7 Ba1 18.Qb7+-) 15.Be5 Rc6 16.Nc7 (worse is 16.Bg7 Rd6 17.Bh8 Bc6+-) 16...Rc7 17.Qc7 (17.Bg7 Rc6 18.Qd3+- (18.Bh8?! Rd6 19.Nf3 Bc6+=)) 17...Qc7 18.Bc7 (18.Bg7?! Rg8 19.Bc3 Qc4=) 18...Ba1 19.c3 Bb5 20.Bd6 Bb2 21.Kd1 Bf1 22.Rh2 Bd3 23.f3 Kd7 24.Bc5 Rc8 25.Bd4 Rc4 26.Ne2 Ra4 27.Nf4 Bb5 28.Kc2+- Ba3 29.Nd5 Kc6 30.Nb6 Ra5? 31.c4+- Ba4? 32.Na4 Ra4 33.Kb3 b5 34.d3 Bd6+/- 35.e5 Ra3 36.Kb2 Rd3= 37.cb5 ab5 38.ed6 Rd4 39.g4 Kd6 40.Re2 Rf4 41.Re3 Kd5 42.Kc2 Rc4 43.Kb3 Rf4 44.h4 0–1. Mose,Greg – Jointer,William, Flint–ch MI class–B, 1992. (=1.e4 c5 2.b4 d6 3.Bb2 Nf6)

4.bc5 Ne4!? 5.Nc3 Nc5+=.

4.Bf6 ef6 5.Nc3 Be7 6.b5 0-0 7.Bc4 Nd7 8.a4 a6 9.Nf3 Nb6 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Re8 13.0-0 f5 14.d4 cd4 15.Nd5 fe4 16.Ne7 Qe7 17.Nd4 Nd5 18.Re1 Nf4 19.Bf1 Qg5 20.g3 d5 21.c4 dc4 22.Bc4 Nh3 23.Kg2 Qf6 24.Qb2? Bg4 25.Qd2 h6 26.Qe3 Rd8 27.Ne2?? Ng5 28.Ng1 Qf5 29.h4 Nf3 30.Nf3 Bf3 31.Kh2 Ra8 32.Bf1 Ra2 33.Bh3 Qb5-+ 34.Rc1 Re2 35.Rc8 Kh7 36.Bf1 Qb1 37.Qc1 Qc1 38.Rc1 Rf2 39.Kg1 Rd2 40.Re1 Rd1 41.Re3 b5 42.Kf2 b4 43.Bc4 f5 44.Bb3 Rd2 45.Ke1 Rg2 46.Be6 Kg6 47.Rb3 Rg3 48.Rb4 Bg4 49.Rb7 f4 50.Bf7 Kf6 51.Bc4 Bc8 52.Rc7 Bh3 53.Rf7 Ke5 54.Bb3 0–1. Lopez Heras,A (1995) – Sierra Soria,M (1705), XXV Aniversario (3), 2008.

3.b5 e5

4.Nc3 Nf6 5.Bb2+=.

4.Nc3 g6 5.Bc4 Be6 (5...Nd7 6.Nf3+=) 6.Qe2 (6.Be6 fe6 7.Qg4 Qd7+=) 6...Bg7 7.Nf3 Nd7 8.0-0 Bc4 9.Qc4 Nb6 (9...Ngf6 10.a4+=) 10.Qe2 (10.Qb3 Nf6+/-) 10...Ne7 11.a4 0-0 12.Bb2 h6 13.Rfb1 Kh7 14.Qd3 f5 15.a5 Nbc8 16.Ra4 (16.ef5 Nf5 17.Re1+/-) 16...f4?? (better is 16...d5 17.ef5 e4 18.fg6 Ng6 19.Ne4 de4 20.Qd8 Rd8 21.Re4 Bb2 22.Rb2 Nd6-/+) 17.Nd5 (17.h3 Qd7+-) 17...g5 (17...Nd5 18.Qd5 Qc7 19.Qc4+/-) 18.h3 Ng6 19.Ra3 Qd7 20.b6 (20.a6!? b6+/-) 20...ab6+/- 21.ab6 Ra3 22.Ba3 Qc6 23.Qb5 Nce7+= 24.Qc6 Nc6 25.Nc7 Rc8 26.c3 Nf8 27.Nb5 Rd8 28.d4 ed4= 29.cd4 Nd4 30.Nfd4 Bd4 31.Nd4 cd4 32.Rd1? Ne6-/+ 33.Bb2 Rc8 34.Bd4= Nd4 35.Rd4 Rc6 36.e5 d5 37.Rd5 Rb6 38.Rd6 Rb1 39.Kh2 Re1 40.e6 b5 ½–½. Zimniok,Lubomir (2170) – Chrobak,Piotr (1930), Karvina CZE, Primator Cup, 2014. (=1.e4 c5 2.b4?? d6?? 3.b5 e5)

3.b5 Nf6

4.Nc3 b6 5.Bc4 e6 6.e5 de5 7.Qf3 e4 8.Ne4 Nd5 9.Bb2 Bb7 10.Ne2 Qc7 11.a3 Nd7 12.Qg3 Qg3 13.hg3 (13.N2g3 a6=) 13...f6 14.d3 Be7 15.Nf4 Nf8 16.a4 Kd7 17.a5 Nf4 18.gf4 Ng6 19.a6 Bc8 20.g3 Kc7 21.Ke2 Bd7 22.Rae1 Rae8 23.Kd1 Bd6 24.Kc1 h6 25.Rd1 Rb8 (25...Be7 26.Rh5+=) 26.d4 (26.Nd6!? Kd6 27.d4+/-) 26...Be7+= 27.Ba3 cd4 28.Be7 Ne7 29.Rd4 Nf5 (29...Rbd8 30.Rhd1+/-) 30.Rd2 (30.Rd3 Rbd8+/-) 30...Rbd8 31.g4 Ne7 32.Rhd1 Bc8 33.Nd6 Rhf8 34.Nc8 Nc8 35.Be6 Nd6 36.c4 Ne4?? (better is 36...Rfe8 37.f5 g6+-) 37.Rd7+- Rd7 38.Rd7 (38.Bd7?! Nf2 39.Rd2 Ne4=) 38...Kb8 39.Rb7 Ka8 40.Bd5 Nc3 41.Rf7 (41.Rf7 Kb8 42.Rf8 Kc7 43.Rf7 Kd6 44.Ra7 Nd5 45.cd5+-) 1–0. Faber,Harald – Zelt,Jens, Ruhrgebiet VK2, 1999. (=1.e4 c5 2.b4 d6)

4.Nc3 e6 5.Nf3 Be7 6.Be2 Nbd7 7.0-0 0-0 8.d4 Qc7 9.Bb2 Rd8 10.d5 Nf8 11.Nd2 e5 12.Nc4 Ng6 13.b6 ab6 14.Nb5 Qb8 15.Nb6 Ra6 16.Nc8 Qc8 17.Nc3 Rb6 18.Rb1 Rb4 19.Bf3 Nf4 20.a3 Rd4 21.Qe1 g5 22.g3 (better is 22.Bc1+/-) 22...Qh3+= 23.gf4 Qf3 24.Qe3 Qg4 25.Qg3 ef4 26.Qg4 Ng4 27.Nd1 (27.Ba1 Rb8+=) 27...Rd2 (worse is 27...Re4 28.f3 Re2 29.fg4 Rc2 30.Bc3+/-) 28.c4 Rc2 (28...Rd7 29.Kg2-/+) 29.h3+= Nf6 30.Bf6? (better is 30.Nc3+=) 30...Bf6-+ 31.Rb7 Ra8 32.Rb3 Rc4 33.f3 (33.Re1 Rc1 34.Rf1 c4-+) 33...Rc2 34.Nf2 Bd4 0–1. Germer,Philipp (2175) – Kresovic,Velimir (2255), Verbandsliga Sued Baden, 2008. (=1.e4 c5 2.b4 d6)

4.Nc3 g6 5.Bb2 Bg7 6.d3 0-0 7.Qd2 a6 8.ba6 Na6 9.Nd1 Nb8 10.Be2 Nc6 11.Nf3 Be6 12.a3 b5 13.0-0 Qc7 14.c3 Na5 15.Qc2 Bb3+= 16.Qb1 Ba4 17.Nd2 Rfb8 18.Ne3 Bh6 19.Bd1 Bd1 20.Qd1 Bg7 21.Qe2 Nd7 22.Rfb1 Nf8 23.c4 Bb2 24.Rb2 bc4 25.Rb8 Rb8 26.Nec4 Nc4 27.Nc4 Ne6 28.Ne3 Nd4 29.Qd1 e6 30.Nc2 Nc6 31.h3 Rb2 32.a4 Qa5 33.Na3 Rd2 34.Qb3 Qb4 35.Qb4 Nb4 36.Nb5 Kf8 37.a5+= Na6 38.Ra3 Ke7= 39.g3 Rb2 40.Nc3 Kd7 41.Kg2 Kc6 42.Kf3 Rb7 43.Ne2 Kb5 44.d4 c4 45.Ra1= Ra7 46.d5 ed5 47.Nc3 Kc5 48.Nd5 Nb4 49.Nb4 Kb4-/+ 50.a6 c3 51.Ke2 c2 52.Kd2+= Kb3 53.Kc1 Kc3 54.Ra3 Kb4 55.Ra2 Kb3 56.Rb2 Ka3? 57.Rb6+- Ka4 58.Rd6 Kb5 59.Kc2 Ra6 60.Ra6 Ka6 61.Kc3 Kb5 62.Kd4 Kb4?? 63.Ke5 Kc4 64.Kf6 Kd4 65.f3 Ke3 66.Kf7 1–0. Aloe,Kevin (1660) – Glory,Alain, Rennes op, 2008. (=1.e4 c5 2.b4 d6 3.b5 Nf6)

4.Nc3 g6 5.Bb2 Bg7 6.Be2 0-0 (better is 6...Ne4!? 7.Ne4 Bb2-/+) 7.d3 Nbd7 8.g4 (8.Nf3 e6=) 8...b6 9.g5 Ne8 10.h4 f5 (10...Nc7 11.Rb1=) 11.ef5 Bb7 12.Bf3 Bf3 13.Qf3 (13.Nf3!? Rf5 14.h5=) 13...Rf5+= 14.Qg2 Bd4 15.Nh3 Ne5 (15...Ng7 16.Rb1+=) 16.0-0-0 Nf3 17.Qg4 (17.Nd5 a6+=) 17...Ne5 (17...a6 18.h5-/+) 18.Qe4 (18.Qg2=) 18...Ng7 (better is 18...Bc3 19.Bc3 d5+=) 19.Nd5+= Bb2 20.Kb2 Rb8 (better is 20...Rf7!?+/-) 21.f4+- Qd7? (21...a6+-) 22.Ne3?? (better is 22.fe5 Qb5 23.Kc1 Re5 24.Ne7 Kh8 25.Qc6+/-) 22...Qb5+/- 23.Ka1 Nc6? 24.Nf5 gf5+/- 25.Qd5 Kf8?? 26.g6!+- hg6 27.Ng5 Nd8 28.Nh7 Ke8 29.Qg8 Kd7 30.Qg7 Ne6 31.Nf6 Kc6 32.Qe7 Nf8 33.Ne8 (33.Ne8 Nd7 34.d4 Re8 35.Qe8+-) 1–0. Suchsland,Helmut (1880) – Kuhn,Arno, EU–ch Seniors, 2005. (=1.e4 c5 2.b4 d6 3.b5 Nf6)

3.Bb5 Nc6

4.bc5 Nf6 5.Nc3 dc5 6.Bc6 bc6+=.

4.d4 cd4 5.Qd4 Bd7 6.Bc6 Bc6 7.c4 Nf6 8.f3 a6 9.a4 b5 10.ab5 ab5 11.Ra8 Qa8 12.cb5 Bb5 13.Na3 Qc6 14.Ne2 e5 (14...Be2 15.Ke2 d5 16.b5=) 15.Qc3 Qc3 16.Nc3 Ba6 17.b5 Bb7 18.0-0 (better is 18.Nc4!?+/-) 18...d5= 19.Bb2 (19.ed5 Nd5 20.Nd5 Bd5=) 19...de4 20.fe4 Bc5 21.Kh1 Ng4 (21...Bd4 22.Nc2+=) 22.Nc4= Nf2 23.Rf2 Bf2 24.Nd6 Kd7 25.Nb7 Rc8 (better is 25...Ra8 26.Nd5 Ra7 27.Be5 f6-/+) 26.g3 Rc7 27.Na5 Be1 28.Nc6 f6? (28...Bc3 29.Bc3 f6 30.Kg2+=) 29.Nd5 (better is 29.Na4!?+-) 29...Rb7+= 30.b6?? Kc6-+ 0–1. Siametis,Dimitrios – Pilarinou,Dimitra, Mitilini op, 1996. (=1.e4 c5 2.b4 d6)

4.Nf3 cb4 5.Bb2+=.

4.Nf3 Bd7 5.Bc6 (5.bc5 dc5 6.0-0 e6=) 5...Bc6= 6.bc5 dc5 (6...Be4 7.d3 Bc6 8.cd6=) 7.Nc3 g6 8.0-0 Bg7 9.Qe2 Nf6 10.d3 (10.Rb1 0-0=) 10...0-0 (10...Ne4 11.de4 Bc3 12.Rb1+=) 11.Ba3 (11.Rb1 Qc7=) 11...Nd7 (11...Qa5 12.Bb2 Ne4 13.de4 Bc3 14.Rfb1-/+) 12.Qd2 Qc7 13.Kh1 b5 14.Bb2 b4 15.Nd1 Rad8 (15...e5 16.Qe2+=) 16.Bg7= Kg7 17.Nb2 Bb5 18.Nc4 (18.a3!? a5 19.Rfc1=) 18...Bc4+= 19.dc4 Ne5 0–1. Zavadilova,Karolina – Palasek,Jan, CZE–ch U10 Sec, 2004. (=1.e4 c5 2.b4 d6)

3.Bc4 e6

4.Bb3 Nf6 5.Qe2 Nc6 (5...cb4 6.Nf3-/+) 6.c3 (6.bc5 Nd4 7.Qd3 dc5=) 6...Be7 7.a3 0-0 8.f4 a6 9.Nf3 Qc7 10.0-0 b5 11.d3 a5 12.bc5 dc5 13.e5 Ng4 14.Nbd2 c4 15.dc4 Bc5 16.Kh1 Ne3 17.Ne4 Nf1 18.Nc5 a4 19.Bc2 (19.Qf1?! ab3 20.Nb3 bc4 21.Qc4 Ba6=) 19...Na5 20.Qe4 (20.Qf1?! Qc5 21.Qd3 g6 22.cb5 Nc4+-; 20.cb5 Qc5 21.Qe4 g6 22.Qa8 Bb7 23.Qa5 Bf3-/+) 20...g6 21.Nd3 (21.Qa8 Bb7 22.Qa7+-) 21...bc4+= 22.Nb2 (22.Ba4? Bb7 23.Qe2 cd3 24.Qd3 Ba6-+) 22...Nb3?? (better is 22...Bb7 23.Qe1 Bf3 24.gf3 Nb3+=) 23.Bb3+- (23.Qa8 Na1 24.Nd4 Nb3 25.Bb3 cb3+= (worse is 25...ab3 26.Qf3+=)) 23...cb3 24.Qa8 Qc3 25.Qa4 Rd8 (25...Bb7 26.Qc4 Qc4 27.Nc4+-) 26.Kg1 (better is 26.Qb5+-) 26...Ne3 27.Be3 Qe3 28.Kh1 Bb7 29.Re1?? Qf2= 30.Nd1?? Qe1!-+ 31.Ne1 Rd1 32.Kg1 Re1 33.Kf2 Rb1?? 34.Qe8 Kg7 35.Qe7 Bd5 36.Qf6 Kg8 37.Qd8 ½–½. Sikula,Frantisek (1755) – Valenta,Petr (1935), CZE–ch Juniors op–A, 2007. (=1.e4 c5 2.b4 d6 3.Bc4 e6)

4.bc5 dc5 5.Ne2 Nc6 6.0-0 Nf6 7.d3 a6 8.a4 Be7 9.Nbc3 0-0 10.h3 b6 11.f4 Nd4 12.Be3 Bb7 13.Ng3 Bc6 14.Rb1 Ba4 15.Na4+/- b5 16.Nb2 bc4= 17.Nc4 Nb5 18.Qe1 Nd7 19.Nh5 g6 20.Ng3 Bh4 21.Rf3 Qc7 22.Qf1 Bf6 23.e5 Bg7 24.Ne4 f6 25.ef6 Bf6 26.Qe1 Bd4 27.c3 Be3 28.Qe3 Nf6 29.Nc5+- Rae8 30.Na6 Qc8 31.Rb5 Qa6 32.Ra5 Qc6 33.Ra7 Rd8 34.Re7 Nd5 35.Re6 Ne3 36.Rc6 Nd5 37.Ne5 Nf4 38.d4 1–0. Guzinski,Bartlomiej – Bogocki,C (2020), Open Kazimierz Dolny Poland (5), 2001.

4.bc5 dc5 5.Nf3 Nc6 6.0-0 a6 7.a4 Nd4 8.c3 Nf3 9.Qf3 Qf6 10.Qe3 e5 11.f4 Bd6 12.fe5 Qe5 13.Bf7 Kd8 14.g3 Bh3 (14...Nf6+=) 15.Rf2 (better is 15.Re1+/-) 15...Nf6= 16.Re2 Rf8 17.d4 cd4 18.cd4 Ng4?? (better is 18...Qe4 19.Qe4 Ne4 20.Re4 Rf7 21.Bg5 Kd7+=) 19.de5+/- Ne3 20.ed6 (20.Re3 Rf7 21.Nd2 Bc5-+ (21...Be5?! 22.Rd3 Rd7 23.Rd7 Bd7 24.Rb1-/+); 20.Be3?! Rf7 21.Rf2 Rf2 22.Kf2 Be5=) 20...Rf7 21.Nd2 Nc2 22.Rb1 Rc8 23.Bb2 Rc6 24.e5 Kd7 25.Rf2 Rf2 26.Kf2 Bf5 27.Rc1 Rb6 28.Bc3 Rc6 29.Ba1 b5 30.a5 b4 31.Nb3 Be6+= 32.Nd2 b3 33.Nf3? h6?? 34.Bb2= Rc5 35.Ne1 Bf5 36.Nc2 Bc2 37.Ra1 Bf5 38.Rc1 Bc2 ½–½. Rumyantsev,Nikolay (1920) – Dorofeev,Gennady (1785), Samara op, 2008. (=1.e4 c5 2.b4 d6 3.Bc4 e6)

4.bc5 dc5 5.Nf3 Nf6 6.Nc3 Nc6 7.0-0 Be7 8.e5 Nd5 9.Ne4 0-0 10.Rb1 Qc7 11.Bb2 Rd8 12.Re1 Na5 13.Bd5 ed5 14.Ng3 Nc4 15.Bc1 Bg4 16.d3 Nb6 (16...Ne5 17.Bf4 Nf3 18.Qf3 Qc8-/+ (18...Bf3?! 19.Bc7 Rd7 20.Rb7=)) 17.h3= Be6 18.Ng5 Bg5 19.Bg5 Re8 20.f4 d4 21.Ne4 Nd5 (21...Ba2 22.Ra1 Bd5 23.Nd6+=) 22.Qh5 h6 23.Bh6 gh6 24.Qh6 Bf5?? (24...Qe7 25.Nd6 Nb4+-) 25.Nf6 Nf6 26.ef6 1–0. De Pierrefeu,Thibault (2190) – Blancho,Gwenael (2030), FRA–chT2, 2004. (=1.e4 c5 2.b4 d6 3.Bc4 e6)

4.Nf3 Nf6 5.d3 a6 6.bc5= dc5 7.a4 Nc6 8.0-0 Be7 9.e5 Nd7 10.Re1 0-0 11.c3 Nb6 12.Bb3 Rb8 13.Ba3 Nd7 14.Bc2 Qc7 15.d4 cd4 16.Be7 Ne7 17.Qd3 g6 18.cd4 b5 19.h4 Bb7= 20.Re3?? Nd5-+ 21.Re2 Nf4 22.Qd2 Ne2 23.Qe2 Rbc8 24.Bd3 Qc1 25.Ne1 Qf4 26.Nd2? Qd4 27.Nb3 Qe5 28.ab5 Qe2 29.Be2 ab5 30.Bb5 Ne5 31.Nd4 Rfd8 (31...Rfd8 32.Nb3 Rb8-+) 0–1. Rezny,F (1665) – Obrsal,Josef, Open, Teplice CZE, 2009.

3.Bc4 Nf6

4.Bb2 Nbd7 5.Qe2 e6 6.bc5 Nc5 7.Nc3 a6 8.d4 Nce4 9.Ne4 Ne4 10.Qe4 d5 11.Qg4 Qa5 12.Kf1 dc4 13.Ne2 h5 14.Qe4 Qd5 15.Qe3 Bd6 16.Nc3 Qf5 17.Ne4 Bf4 18.Qe2 Bd7 19.a4 h4 20.f3 Rc8 21.d5 0-0 22.g4 Qg6 23.de6 Be6 24.Qe1 h3 25.Rd1 Rfe8 26.Rg1 Qh7 27.g5 c3 28.Bc3 Bc4 29.Rd3 Qh5 30.Rg4 Bh2 31.Qf2 Re4 32.Re4 Bd3 33.cd3 Rc3 0–1. Reinke,Markus (2245) – De Gleria,Francesco (2140), Duesseldorf (1), 1995.

4.Bb2 Ne4 5.Bf7 Kf7 6.Qh5 g6 7.Qd5+= e6 8.Qe4 Be7 9.Qf4 Bf6+= 10.Bf6 Qf6 11.Qf6 Kf6 12.bc5 dc5 13.Nc3 Nc6 14.Ne4+= Kg7 15.Nc5 b6 16.Nb3 Bb7 17.c3 Ne5 18.f3+= Ba6 19.Kf2 h5 20.h4 Nd3 21.Kg3 Rhf8 22.Nh3 e5 23.Ng5 Rae8 24.Nc1 Nc5 25.Re1 Bb7 26.d4 ed4 27.Re8 Re8 28.cd4 Ne6 29.Ne6 Re6 30.Nb3 Rd6 31.Rc1 Rd7 32.Kf2 Kf6 33.Rd1 a5 34.Nc1 Bd5 ½–½. Mablouke,Ulrich (1780) – Gallet,Hadrien (1630), Saint Denis FRA, 2011.

4.bc5 Ne4 5.Bf7 Kf7 6.Qh5 Kg8 7.Qd5 e6 8.Qe4 d5 9.Qe2 Bc5 10.Nf3 Nc6 11.Nc3 Nd4 12.Nd4 Bd4 13.Bb2 e5 14.0-0 Bf5 15.Kh1 Qd7 16.f4 Re8 17.Rae1 Bg4 18.Qd3 Bf5 19.Qg3 e4 20.Ba3 h5 21.Ne2 h4 22.Qb3 Bb6 23.Bb2 h3 24.g3 Bg4 25.Nd4 Rh6 26.Bc3 Kh7 27.a4 a5 28.Ba1 Rc8 29.Re3? Rc4-+ 30.c3 Ra4 31.Rfe1 Bd4 32.cd4 Rb4 33.Qa2 a4 34.Bc3 Rc4 0–1. Lehericey,F – Rouede,Gilbert, Chanac op, 1989.

4.d3 cb4 5.a3 ba3 6.Na3 Bd7 7.Nf3 h6 8.0-0 e5 9.d4 Nc6 10.de5 Ne5 11.Ne5 de5 12.Nb5 Qb6 13.Be3 Qc6 14.Qd3 a6 15.Qb3= Be7 16.Bf7 Kf8 17.Na3 b5 18.Rfd1 Be8 19.Bd5+/- Nd5 20.ed5 Qg6 21.d6! Bd6 22.Qd5 Rd8? 23.Bc5 Bf7 24.Bd6 Kg8 25.Qe5 Kh7 26.Be7 Rd1 27.Rd1 Re8 28.Qd6?? Qg4?? 29.f3 Qc8 30.Bh4 Bg6 31.Qd2?? Qc5=+ 32.Bf2 Qa3 33.Bd4 Qa2 34.Rc1 Qc4 35.Be3 a5 36.g4 h5 37.h3 a4 38.Kf2 a3 39.Bd4 b4 40.gh5 Bh5 41.c3 b3-+ 42.Rg1 Re7 43.Qg5?? Qe2 44.Kg3 Qf3 45.Kh4 Re4 46.Rg4 Rg4 47.hg4 Qg4! 48.Qg4 Bg4 49.Kg4 b2 (49...b2 50.Kf4 b1Q-+) 0–1. Solovyev,M (2060) – Artemjev,N (2095), 6th ch–PriFO Men (4), 2008.

4.d3 cb4 5.Nf3 Bg4 6.Bd2 Nc6 7.a3 a5 8.c3 e6 9.Bg5 Be7 10.0-0 0-0 11.Re1 bc3 12.Nc3 Nd4! 13.Re3 Rb8 14.Nb5 Nf3 15.Rf3? h6 16.Bd2 b6 17.Qe2 d5 18.Qe3?? Bf3 19.Qf3 dc4 20.Qg3 Nh5 21.Qg4 Nf6 22.Qg3 Re8 23.Bh6 g6 24.Re1 cd3 25.h3 Ne4! 26.Re4 Bc5 27.Qe5 f6 28.Qg3 Kf7 29.Qf3 e5 30.Rg4 Rg8 31.a4 f5 32.Nc3 Ke6 33.Rc4 g5 34.Qc6 Kf7 35.Qb5 d2 36.Nd1 Qd3 37.Rc5 Qb5 38.Rb5 Ke6 39.h4-/+ gh4 40.Bd2 Rgd8 41.Rb2 f4 42.Nc3-/+ Kf5 43.Kh2 e4?? 44.Kh3?? Rh8?? 45.Rb5+- Ke6 46.Bf4 Rb7 47.Re5 Kf6 48.Ne4 Kg6 49.Rg5 (49.Rg5 Kf7 50.Nd6 Ke6 51.Rg6 Kd7 52.Nb7+-) 1–0. Newton,Daryl – Macdonald,Murdo, IECC, 2004.

3.bc5 dc5

4.Bb2 e6 5.Bc4 Nc6 6.Ne2 Nf6 7.d3 Be7 8.0-0 a6 9.a4 e5 10.f4 ef4 11.Nf4 0-0 12.Nd2 Bg4 13.Qe1 (13.Qb1 Bd6+=) 13...Nd4= 14.Rc1 b5 15.ab5 ab5 16.Bd5 (16.c3 bc4 17.cd4=) 16...Bd6 (better 16...Nd5!? 17.ed5 Bh4-/+) 17.Bd4 (17.Ba8 Bf4 18.Rf4 Ne2 19.Kh1 Nf4+=) 17...Nd5 18.Nd5 cd4 19.Nb3 Be6 20.Nf4 Bb3 21.cb3 Ra2 22.e5 (22.Rf2!? Ra3 23.e5=) 22...Re8-/+ 23.ed6 (23.e6 fe6 A) 24.Ne6? Qd7 25.Qe4 Re6-+ (25...Qe6?? 26.Qe6 Re6 27.Rc8 Re8 28.Re8 Bf8 29.Rff8); B) 24.Qe4-/+) 23...Re1-+ 24.Rfe1 g5 (24...h6 25.g3 Rb2 26.Rc7-/+) 25.Nh5 Ra8?? (better 25...Kf8-/+) 26.d7!+- Qf8 (26...Qd7 27.Nf6 Double attack (27.Nf6 Decoy)) 27.Re8! (27.Re8 Qe8 28.de8Q Re8 29.Nf6 Kf8 30.Ne8 Ke8 31.Rc5+-) 1-0. blitzbullet (2430) - Mapo1 (2550), Rated Blitz game, lichess.org, 2017. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bb2 Nf6 5.d3 Nc6 6.f4 Qc7 7.e5 (7.Qd2 g6=+) 7...Nd5 8.Qd2 e6 (8...Qb6!? 9.Bc3 c4-/+) 9.Nf3 (9.Nc3 Qb6 10.Nd5 Qb2=+) 9...Be7 (9...Qb6 10.c4 Nf4 11.Nc3-/+) 10.c4 Nb6 11.Nc3 0-0 12.Rc1 (12.Kf2 f6 13.Nb5 Qb8 14.ef6 Bf6 15.Bf6 Rf6=+) 12...f6 (12...Rd8 13.Ne4=+) 13.Be2= f5 (13...fe5 14.Nb5 Qd8 15.Ne5=) 14.0-0 Rd8 (14...a6 15.a4=) 15.Qe1 (15.Nb5 Qb8=) 15...Nb4 16.d4 (16.Rd1 a6=) 16...Qc6 17.a3 (17.Nb5 Na4 18.Ba1 Na2=) 17...cd4 18.ab4 dc3 19.Bc3 (worse 19.Qc3 Na4 20.Qb3 Nb2 21.Qb2 Qe4-/+) 19...Qe4 (19...Na4!? 20.Bd2 a5 21.ba5 Qe4=) 20.Nd2+= Qe3 (20...Qc6 21.c5 Nd5 22.Nc4+=) 21.Kh1+- Na4 22.Rf3 Qb6 23.c5 Qc7 24.Nc4 b6 (24...a5 25.Na5 b6 26.cb6 Qb6 27.Nc4+-) 25.Nd6 a5 (25...bc5 26.bc5 Nc3 (26...Nc5?? 27.Ba5 Qc6 28.Bd8 Bd8 29.Rfc3+-) 27.Rfc3 Rb8+-) 26.cb6 (better 26.Bd4 Qb8 27.Rb1 bc5 28.bc5+-) 26...Qb6? (better 26...Nb6 27.Bd4 Bd6 28.Rc7 Bc7+-) 27.ba5 Qb8 (27...Qa7 28.Bb4+-) 28.Bb4 Bb7 (28...Qa7+-) 29.Ra3 Bd6 (29...Nb2 30.Ra2 Bd6 31.ed6+- (31.Rb2?! Bb4 32.Qb4 Be4 33.Qb8 Rab8 34.Rb8 Rb8+-)) 30.ed6 (30.Ra4?! Bb4 31.Rb4 Qa7+- (31...Ra5?? 32.Rb7 Qb7 33.Qa5+-)) 30...Nb6 (30...Rc8 31.Ra4 Be4 32.a6+-) 31.ab6 Ra3 32.Ba3 Qa8 (32...Rd6 33.Bd6 Qd6 34.Bc4 Qb6 35.Be6 Kh8 36.Bd5+-) 33.Qg3 Bg2 34.Kg1 Bc6 35.Bf1 (35.Bb2 Rd7 36.Qc3 Bb7+-) 35...Qb7 36.Qe3 Rc8 (36...Kf7 37.Qc5 Bd7 38.Qc7+-) 37.Bb2 Kh8 (37...Kf7 38.Qe5 Kg8 39.Ba6 Qb6 40.Bd4 Qd4 41.Qd4 Rf8 42.Rc6 h6 43.d7 Rd8 44.Re6 Kh7 45.Re7 Rg8 46.d8Q Kg6 47.Qe8 Re8 48.Qg7 Kh5 49.Be2 Kh4 50.Qh6) 38.Bd4 Qf7 (38...Qd7 39.Qg3 e5 40.fe5 Rg8+-) 39.Bg2 Qb7 40.Qe5 (40.Qe5 Rg8 41.Rc6 Qf7 42.Rc7 Qf8 43.b7 h6 44.Rc8 Qf7 45.b8Q Rc8 46.Qc8 Kh7 47.Qc7 Qc7 48.dc7 Kg6 49.Qg7 Kh5 50.Bf3 Kh4 51.Qh6) 1–0. Reinderman,Dimitri (2570) – Bruil,Rembrandt (2060), Dutch Open, 2017. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bb5 Bd7 5.a4 a6 6.Bc4 Nc6 7.Nf3 e5 8.0-0 Nf6 9.Ng5 Be6 10.Be6 fe6 11.Ne6 Qd7 12.Nf8 Rf8 13.d3 0-0-0 14.Nc3 Qd4 15.Bb2 c4 16.Qb1 cd3= 17.cd3 Qd3 18.Qa2 Ne4 19.Rad1 Qc2 20.Rc1+= Qd3 21.Rfd1 Nd2 22.Ba1 Qd4 23.Ne4 Qe4 24.Rd2 Qf4 25.Rc6 Kb8?? 26.Rd8+- Rd8 27.Qb1 Rd2 28.Qe1 Ka7 29.Rc1 Re2 30.Qe2 (30.Qe2 Qc1 31.Qf1+-) 1–0. Diaz Suarez,Cayetano (1795) – Godoy Suarez,Daniel, Gran Canaria ESP, 3rd Mendoz Mem, 2011.

4.Bb5 Bd7 5.a4 Nc6 6.Nf3 Nf6 7.e5 Nd5 8.Ba3 e6 9.0-0 Be7 10.d4 0-0 11.c4 Ndb4 12.d5 Na5? (better is 12...ed5!? 13.cd5 Nb8 14.Bb4 cb4+/-) 13.d6 Bg5 14.Bd7 (14.Ng5 Qg5 15.Bd7 Qe5 16.Bb4 cb4+=) 14...Qd7? (14...Bh6 15.Bb5 a6+-) 15.Ng5 Nc4 16.Bb4 cb4 (16...h6 17.Bc5 hg5+-) 17.Qd3 g6 1–0. Osthus,Reinhard – Lopatta,Marco, DESC SE032 email, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bb5 Bd7 5.Bc4 b5? (5...Nf6 6.Nc3=) 6.Be2?? (better is 6.Bf7 Kf7 7.Qh5 Kf6 8.e5 Ke6 9.Nh3+-) 6...Bc6 7.Nc3 (better is 7.Nf3!?=) 7...b4-/+ 8.Nd5 e6 9.c4? (better is 9.Ne3!? Be4 10.Bb2-/+) 9...ed5-+ (9...Bd5?! 10.ed5 ed5 11.Bb2=) 10.cd5 Bb7 11.Bb5 Nd7 12.Nf3 Ngf6 13.Ng5? Be7 14.e5? Bd5 15.Qc2 Ng4 16.e6 fe6 17.Nh7 Kf7 18.Be2 Ngf6 19.Ng5 Kg8 20.0-0 Qc7 21.f4 c4 22.Bb2 Bd6 23.g3 Bc5 24.Rf2 Bf2 25.Kf2 Rh2 26.Ke1 Rh1 27.Bf1 Qc5 28.Qg6 Qg1 29.Kd1 0–1. Hodot,Yves (1960) – Jacquot,David (2085), FRA–ch op–A Pau, 2008. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bb5 Bd7 5.Qe2 a6 6.Bd7 Qd7 7.Bb2 Nc6 8.Nf3 e6 9.c4 (9.0-0!?+=) 9...Nge7 10.0-0 Ng6 11.g3 e5 (11...0-0-0 12.Na3=) 12.Nc3+= Nd4 13.Nd4 cd4 14.Nd5 Bc5 15.Qd3 0-0 16.Ba3 Rac8 17.Rab1 Ne7? (better is 17...Rfe8+=) 18.Bc5+- Rc5 19.Rb6 (19.Qa3 Qd6 20.Rb6+- (20.Rb7?! Nd5 21.cd5 Rd5 22.Qd6 Rd6+=)) 19…Nc6 0–1. Ciszewski,Marek (1950) – Vakhitov,Dmitri (1640), XIV Miedzynarodowe Mistrzostwa Gdanska Poland, 2012. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.c3 Nc6 5.Nf3 e5 6.Bc4 Qd6 7.Qb3 Qg6 8.0-0 Bd6 9.d4 Nge7 10.Ng5 0-0= 11.Nf7 Rf7 12.f4? ed4-+ 13.Bb2 Na5 14.Bf7-/+ Qf7 15.Qf7 Kf7 16.cd4 Nc4 17.Bc3 cd4 18.Bd4 Nc6 19.Bf2 Rb8 20.Nc3 b5 21.e5 Ba3 22.Rad1 Bg4 23.Rd5 a6 24.h3 Be6 25.Rdd1 Nb2 26.Rd2 Bc4 27.Rb1 Nd3 28.e6? Ke6-+ 29.Ne4 h6 30.Be3 Kf7 31.Nf2 Re8 32.Bb6? Nf4 33.Rbd1 Ne2 34.Kh2 Nc3 35.Ra1 Re6 36.Bd4 Bd6 37.Kh1 Nd4 38.Rd4 Be5 (38...Be5 39.Rd7 Ke8-+) 0–1. Mordiglia,Riccardo – Palmiotto,Fiorentino (2195), Celle Ligure op, 1995.

4.c3 Nc6 5.Nf3 Bg4 6.Bc4 e6 7.h3 Bh5 8.Ba3 Bd6 9.Bb5 Qb6 10.Ba4 Rd8 11.d3 Nge7 12.Nbd2 0-0 13.Nc4 White prepares e5 13...Qc7 14.d4 White prepares the advance e5 14...b6 15.g4 Bg6 16.e5 Be5 17.Nfe5 Ne5 18.Ne5 Nd5? (better is 18...cd4 19.Ng6 Ng6+=) 19.0-0 (19.0-0 Nc3 20.Qb3 Ne2 21.Kg2 Be4 22.f3 Rd4 23.fe4 Qe5 24.Bc6-+) 1–0. Yurtseven,Melih (2145) – Nikolovska,Dragana (1770), Skopje FRM, 2nd Karposh Open, 2012. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.c3 e5 5.d3 Nc6 6.Nf3 Nf6 7.Qb3 h6 (7...Bd6 8.Be2+=) 8.g3 (8.Be2!?=) 8...Be7-/+ 9.Bg2? (better is 9.Be2!?-/+) 9...Qd3-+ 10.Nfd2 (10.Nbd2 0-0-+) 10...0-0 11.Bf1 Qd7 12.a4 Qc7 (12...b6 13.Na3-+) 13.Na3 a6 (better is 13...Be6 14.Qc2 Rad8-+) 14.Nf3? (14.Rb1-+) 14...Ne4 15.Bd3 (15.Bg2 Be6 16.Qc2 Nd6-+) 15...Nf6 16.Nh4 Be6 17.Bc4 (17.Qc2 e4! 18.Bc4-+) 17...Na5 18.Qc2 (18.Be6 Nb3 (18...fe6?! 19.Qe6 Rf7 20.Nc4 Nc4 21.Qc4-+) 19.Bb3 c4-+) 18...Nc4 19.Nc4 (19.Nf5 Na3 20.Ra3 Bc4-+) 19...Bc4 20.Rg1 (20.f3 Rfd8 21.Nf5 Bf8-+) 20...Rad8 21.Be3 (21.Nf5 Bd3 22.Ne7 Qe7-+) 21...Bd3 22.Qc1 Ng4 (better is 22...Nd5 23.Ng2-+) 23.f3 (23.h3 Ne3 24.fe3 Qd7–) 23...Ne3 24.Qe3 Bg5 25.f4 ef4 26.Qf3 Rfe8 (better is 26...Qb6 27.Qd3 Rd3-+) 27.Kd1 Be2 (27...Qb6 28.Kc1 Qb3 29.Rg2 Qc3 30.Rc2 Qc2) 28.Ke1 Bf3 29.Kf2 (29.Kf1 Qe5 30.Rg2 Bg2 31.Kg2 Rd2 32.Kf1 Qe2 33.Kg1 Bh4 34.gh4 Qg2) 29...fg3 (29...Rd2 30.Kf1 Qe5 31.Rg2 Rg2 32.Ng2 Qe2 33.Kg1 Qg2) 30.Kf3 (30.Rg3 Rd2 31.Kf1 Bh4 32.a5 Qe5 33.Rg2 Bg2 34.Kg1 Qe3) 30...Re3 (30...Qf4 31.Kg2 Rd2 32.Kh1 Rh2) 31.Kg2 (31.Kg4 Qf4 32.Kh3 Qh4 33.Kg2 Qh2 34.Kf1 Qf2) 31...Rd2 32.Kh1 (32.Kh3 Qd7 33.Nf5 Qf5) 32...Rh2 0–1. Elboeva,Polina – Polyanskaya,Elizaveta, Novokuznetsk RUS, SFO Ch U15 (g), 2014. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.c3 e5 5.Nf3 Qc7 6.Bc4 h6 7.Na3 a6 8.Qb3 Bd6 9.h3 Nf6 10.0-0 0-0 11.Re1 Nc6 12.Bf1 Be6 13.Qd1 b5 14.Nc2 c4 15.d4 cd3 16.Bd3 Na5 17.Qe2 Bc4 18.a4 (better is 18.Nd2!?-/+) 18...Nb3-+ 19.Rb1 Bd3 20.Qd3 Nc5 (20...Nc1?! 21.Rec1 Rfd8 22.ab5+=) 21.Qe2 Na4 22.Bd2 Nc3 23.Bc3 Qc3 24.Ne3 Qc6 (24...Ne4?! 25.Nf5 Nf2 26.Kf2 (worse is 26.Nd6 Nh3 27.gh3 Qc5 28.Qf2 Qd6-/+) 26...Bc5 27.Kf1=) 25.Nf5 Rfe8 26.Rb3 Rad8 27.N3h4 Kh7 28.Ng7? (28.Nd6 Qd6 29.Qf3-+) 28...Kg7 29.Rg3 Kh7 30.Qf3 Bb8 (30...Bb4!? 31.Ra1-+) 31.Qf5 (31.Nf5 Rd7-+) 31...Kh8 32.Ng6 (32.Rc3 Qe6-+ (worse is 32...Qc3 33.Qf6 Kg8 34.Nf5 Qe1 35.Kh2 Qg1 36.Kg1 Rd1 37.Kh2 Rh1 38.Kh1 Rd8 39.Qg7)) 32...fg6 33.Rg6 Rf8 (better is 33...Rd6 34.Rh6 Kg7 35.Qg5 Kf7-+) 34.Rh6 Kg7 35.Qg6 1–0. Elieff,Kosta – McRorie,A, Tolpuddle op, 1995. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.c3 Nf6 5.f3 e6 6.Bb5 Bd7 7.Bd7 Qd7 8.d4 Be7 9.Ne2 0-0 10.Be3 Rd8 11.g4 Nc6 12.Nd2 cd4 13.cd4 Rac8 14.Kf2 Nb4 15.Nb3 Qb5 16.Bd2 Nd3 17.Kg2 Nb2 18.Qe1 Nc4 19.Nc3 Qd7 20.h4 Bb4 21.Rc1 a5 22.a4 Nd2 23.Qd2 Qc7 24.Nb5 Bd2 (better is 24...Qe7!? 25.Qg5 Qd7+=) 25.Rc7+= Rc7 26.Nc7 Rc8 27.Ne6 fe6 28.Nd2 Rc2 29.Rd1 Ra2 30.Kg3 Ra4 31.Nb3 Ra3 32.Rd3 b5 33.Kf2 b4 34.Ke2 a4 35.Nc5 Ra2 36.Rd2? (better is 36.Ke3 Kf7 37.Kf4+=) 36...b3-+ 37.Na4 Ra4 38.Rd1 Ra2 39.Kd3 Rf2 40.Ke3 Ra2 41.Rb1?? (41.Kd3 Rh2 42.g5-+) 41...b2 42.Kf4 (better is 42.Kd2-+) 42...Nd7 43.d5 Kf7 44.d6 Nc5 45.Ke3 Na4 46.Kd2 Ra1 47.Kc2 e5 48.Rb2 Nb2 49.Kb2 Rd1 50.Kc3 Rd6 51.g5 Kg6 52.Kc4 Kh5 53.f4 ef4 54.e5 Re6 55.Kd5 Re5! 56.Ke5 f3 57.Ke6 f2 58.Kf7 f1Q 59.Kg7 Qf5 60.Kh8 Qd7 0–1. Verhorst,Andreas – Mir Wais,Milod (1745), NRW–ch U14 Kranenburg, 2003. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 a6 5.a4 Nc6 6.Bc4 e6 7.Nf3 Nf6 8.0-0 Be7 9.Bb2 0-0 10.d3 Qc7 11.Ne2 Na5 12.Ba2 Rd8 13.Nd2 Ng4 14.Ng3 Bf6 15.Bf6 Nf6 16.f4 Nc6 17.e5 Nd5 18.Qe1 Nd4 19.Rc1 Nc3 20.Bb3 b5 21.ab5 ab5 22.Qe3 Bb7 23.f5 (23.Rf2 Qb6 24.Re1 Nd5 (worse is 24...Nb3 25.Nb3 Rac8 26.f5=) 25.Bd5 Nc2+=) 23...Qc6 24.Rf2 ef5 25.Qf4 Nb3 (better is 25...Qb6!? 26.Kh1 Bc8-/+) 26.Nb3 g6 27.Qg5 Bc8?? (better is 27...h6 28.Qh6 c4=) 28.Qd8+- (28.Qd8 Kg7 29.Qg5+-) 1–0. Kaloskambi,Evangelia – Sperdokli,Elli, GRE–ch U16 Girls 8th, 1996. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 a6 5.Bb2 Nc6 6.Nf3 e5 7.h3 Be6 8.Be2 f6 9.0-0 Nge7 10.Nh4 Qc7 11.Rb1 Nd4 12.Bg4 Bg4 13.Qg4 Nc2 14.Rfc1 Nd4 (better is 14...Nb4!?-/+) 15.Na4= Nec6 (15...h5 16.Qd1 Ne6 17.Ba3+=) 16.Bd4 (better is 16.Nc5!? Bc5 17.Rc5=) 16...Nd4+= (worse is 16...ed4 17.Qh5 Qf7 18.Qf7 Kf7 19.Rb7 Be7 20.Nc5+-; worse is 16...cd4 17.Qe6 Be7 18.Nf5+/-) 17.Nb6 Rd8 18.Nd5 (18.Qd1!?+=) 18...Qf7-/+ 19.Rb6 h5 (19...f5!? 20.Nf5 h5-/+) 20.Qd1= Bd6 21.Qa4 Qd7 22.Qc4 Qf7 23.Rcb1 Rd7 24.Rd6 (24.Ne3 g6+=) 24...Rd6 25.Qc5 Rc6?? (better is 25...Qd7 26.Nc7 Kd8 27.Rb7 Rc6=) 26.Qa7+- Rc1 (26...0-0 27.Rb7 Nb5 28.Rf7 Na7 29.Ra7 Rc2+-) 27.Rc1 Ne2 (27...0-0 28.Rc7 Nb5 29.Rf7 Na7 30.Rb7+-) 28.Kh2 (better is 28.Kf1 0-0 29.Rc7+-) 28...Nc1 (28...0-0 29.Rc7 Qe8+-) 29.Qb8 Kd7 30.Qb7 Ke8 (30...Kd8 31.Qb8 Kd7 32.Qc7 Ke8 33.Qc8) 31.Qc8 1–0. High,Greg – Goetze,Jonathan, NWC January, 1984. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 e5 5.Bb5 Nd7 6.Nf3 (6.Rb1 Ngf6 7.d3 Be7 8.f4 0-0 9.Nge2) 6...Bd6 7.Bb2 Ngf6 8.a4 0-0 9.0-0.

4.Nc3 e5 5.Nf3 Bd6 6.Bb5 Nd7 7.Nd5 Ne7 8.Ne7 Qe7 9.d3.

4.Nc3 e5 5.Nf3 Bd6 6.Bc4 Nf6 7.d3 h6 8.h3 0-0 9.0-0 Qe7 10.Be3 Be6 11.Bb3 Bb3 12.ab3 Nc6 13.Ne2 Nd4 14.Ng3 b6 15.c3 Nf3 (15...Nb5 16.Qc2+=) 16.Qf3 Rfd8 17.Nf5 Qe6 18.Qg3 Nh5 (18...Bf8 19.Rfd1 Kh7 20.Qh4+=) 19.Qg4 Qg6 20.g3 (20.Rfd1 Kh7+/-) 20...Qg4 (20...a5 A) worse is 21.Nd6 Rd6 22.Qg6 fg6= (worse is 22...Rg6 23.g4+=); B) 21.d4 ed4 22.cd4 cd4 23.Bd4+=) 21.hg4+/- Nf6 22.f3 (22.g5 hg5 23.Bg5 Rd7 24.Bf6 gf6+/-) 22...Bf8 23.Rad1 Rd7 24.Kf2 Rad8 25.Ke2 Bd6 (25...Ne8 26.g5+=) 26.Rh1 Bc7 (better is 26...Nh7!?+/-) 27.g5+- hg5 28.Bg5 Rc8?? 29.Bf6 gf6 30.Rh6 Bd8 31.Rdh1 Kf8 32.Rh8 1–0. Kavuza,Vitaly – Dmitrishin,Oleg, UKR–ch sf U14, 1999. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 e5 5.Qh5 Bd6 (5...Nd7 6.Bc4 g6 7.Qe2 Ngf6 8.Nf3 Bd6 9.Bb2) 6.Bc4 g6 7.Qf3 Nf6 8.Rb1 Nc6 9.Nge2.

4.Nc3 e6 5.Bb2 Nc6 6.Nf3 Nf6 7.Bb5 Bd7 8.0-0 a6 9.Bc6 Bc6 10.d3 b5 11.Ne2 Be7 12.Ng3 0-0 13.Qd2 h6 14.Ne5 (14.Qe3 Qc7=) 14...Bb7 (14...Be4 15.Ne4 Ne4-/+) 15.f4 (15.Qe3 Bd6=) 15...Nd7 (better 15...Ne4!? 16.Ne4 Be4-/+) 16.Nd7 Qd7 17.Nh5 (17.f5 f6=) 17...f6 18.Rf3 (18.Qe3 c4=+) 18...Kh7 (18...Be4 19.Rg3 g6=+) 19.Rd1 Rad8 20.Qe1 Qe8 21.Ng3 f5 22.Re3 (better 22.Qe3=+) 22...Qd7?? (better 22...fe4 23.Ne4 Rf4-/+) 23.ef5+/- Qd5 24.Qf2 (24.Qe2 Qa2 25.Bg7 Kg7 26.Re6 Bf6 27.Nh5 Kh8 28.Rf6 Rf6 29.Nf6 Qf7+-) 24...Bh4 25.fe6 Rde8 (25...Rf4 26.Qe2+/-) 26.Re2 (better 26.c4 bc4 27.f5 cd3 28.Red3+- (28.Rdd3?! Qa2 29.Rd7 Re7+=)) 26...Re6= 27.Re6 Qe6 28.Be5 (28.Rf1 Qa2 29.Qc5 Kg8=) 28...Qa2=+ 29.Qc5 (29.Bd6!? Rc8 30.Bc5 Bg2 31.Qg2 Rc5 32.Qe4 Kh8 33.c4=) 29...Rc8-/+ 30.Bc7?? (better 30.Qb6 Qc2 31.Qb7 Qd1 32.Nf1 Bf2 33.Kf2 Rc2 34.Kg1+-) 30...Bg3-+ 31.hg3 Qf7 32.Rf1 Rc7 33.Qf2 Qd5 (33...Qa2 34.Rc1-+) 34.Rc1 a5 35.g4 b4 36.f5 1-0. phil west (2760) - kianas (2025), ChessWorld.net, 2010. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3)

4.Nc3 e6 5.Nf3 Nf6 6.Rb1 Be7 7.Bb5 Bd7 8.0-0 0-0 9.d3 Nc6 10.Bf4 a6 11.Bc6 Bc6 12.Ne5 Qc8 13.Nc4 Nd7 14.Nd6 Bd6 15.Bd6 Re8 16.a4 b6 17.Qg4 Qb7 18.f4 b5 19.f5 b4 20.f6 g6 21.Qg5 Kh8?? (21...Qa7 22.Ne2 Ba4=) 22.Qh6+- (22.Bc5 Qc7 23.Rb4 Bb7+-) 22...Rg8 23.Rf3 g5 (23...Nf6 24.Be5 Qe7 25.Bf6 Qf6 26.Rf6 Rg7+-) 24.Rh3 Nf6 25.Be5 Rg7 26.Bf6 Rag8 27.Qh7 1–0. Ulanov,Alexandr (2315) – Leontiev,Ilja (1650), Dimitrovgrad Petrosian Memorial, 2009. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 e6 5.Nf3 g6 6.Bb2 Bg7 7.Bb5 Bd7 8.Bd7 Nd7 9.0-0 Ne7 10.Rb1 a6 11.Ne2 e5 12.Ne1 0-0 13.f4 f5 14.fe5 fe4 15.Rf8 Nf8 16.Ng3 Qd5 17.a3 b5 18.Qe2 Be5 19.Be5 Qe5 20.Ne4 Nd7 21.Nf3 Qc7 22.Neg5 Nf6?? 23.Qe6+- (23.Qe6 Kg7 24.Qf7 Kh6 25.Ne6+-) 1–0. Ziogaite,J – Khudaya,H, EU–ch U12 Girls (4), 1998.

4.Nc3 g6 5.Rb1 Bg7 6.Bb5 Bd7 7.Nge2 Nc6 8.0-0 e6 9.d3 Nge7 10.Bc4 b6 11.f4 Nd4 12.Kh1 0-0 13.Nd4 cd4 14.Ne2 Bc6 (14...b5 15.Bb3+= (worse is 15.Bb5 Rb8-/+)) 15.Ba3= Bb7 16.Ng3 Qc7 17.Qg4 Rfd8 (17...Rac8 18.f5 ef5 19.ef5+/-) 18.Be7 (better is 18.Be6!? Nc6 19.Bb3+/-) 18...Qe7= 19.f5 ef5 20.ef5 Qd7 21.Qg5 Bd5 22.fg6 hg6 23.Bd5 (23.Bb3!?=) 23...Qd5+= 24.Qd5 Rd5 25.Rbe1 (25.Kg1 Be5-/+) 25...Kf8 (25...Ra5!?-/+) 26.Ne4 Rc8 27.Rf2 Rc7 28.Rfe2 Re5 29.h3 Bh6 30.Nd6 Re2 31.Re2 Be3 32.Nc4 b5 33.Ne3 de3 34.g3 (worse is 34.Re3 Rc2 35.a3 Rc3-+) 34...Rc3 35.Kg2 (worse is 35.Re3 Rc2 36.Re5 a6-+ (worse is 36...Ra2 37.Rb5 a5 38.Rb7-/+)) 35...Ra3 36.Kf3 Ra2 37.Ke3 b4 38.Kd4? (better is 38.d4+=) 38...b3!-+ 39.Kc3?? (39.cb3 Re2) 39...b2 40.Re1 Ra1 0–1. Grott,Stefanie – Winter,Kathrin, NRW–ch (Women), 1996. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 g6 5.Bc4 e6 (5...a6 6.Qf3 e6 7.Nd1=) 6.Rb1 (6.Bb2 a6=) 6...Bg7 (6...a6 7.Bf1=) 7.Bb2 (7.Na4 Qa5=) 7...Ne7 (7...a6 8.h4=) 8.Nge2 (8.Qc1 Nec6=) 8...0-0 (8...a6 9.Ng1=) 9.0-0 (9.h4 Nec6=) 9...Nbc6 (9...a6 10.Nc1+=) 10.a3 b6 (10...a6 11.Ba2 Qd6 12.a4=) 11.d3 Kh8 (11...a6 12.f3=) 12.f4 (12.Qd2 Na5 13.Na4 Nec6 14.Bg7 Kg7=) 12...Nd4 (12...a6 13.Ba2=) 13.Nd4 cd4 White has a new backward pawn: c2 14.Ne2 e5 (better is 14...Bb7=) 15.fe5+/- Be5 16.Bf7 Qd6 17.h3 Nc6 (17...Bd7+/-) 18.Qd2 (18.Bd5!? Rf1 19.Qf1+-) 18...Be6 (better is 18...Bh3!? 19.gh3 Qd7+=) 19.Be6+/- Qe6 20.Qg5 (20.c4 Rae8+/-) 20...Qd6 21.Kh1 Kg7 22.Ng1 h6 23.Qd2 Rf4 24.Rf4 Bf4 25.Qe2 Rf8 26.Nf3 Kh7 27.Rf1 Be3 28.Qe1 Kg8 29.Bc1 Bf4 30.Bf4 Rf4 31.Kg1 Qa3 32.Qg3 Rf6 33.e5 Re6 34.Qf4 Kg7?? 35.Ng5!+- hg5 36.Qf7 (36.Qf7 Kh6 37.Qe6+-) 1–0. Schneider,Georg – Schmidt,Erich (1780), Bad Sooden Allendorf Seniors op, 2002. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bc4 a6 5.Bb2 Nc6 6.a4 e6 Secures d5 7.Nf3 Nf6 8.d3 Prevents intrusion on e4 8...g6 9.0-0 Bg7 10.Nc3 0-0 11.Rb1 Nd7 12.Ba1 Nde5 13.Ne5 Ne5 14.Bb3 Nc6 15.Ne2 Nd4 16.Nd4 cd4 17.f4 e5 (17...b5 18.Qf3=) 18.f5 White gets more space 18...Qg5 (18...gf5 19.ef5 Bd7 20.c3 dc3 21.Bc3+=) 19.Rf3 (19.fg6 hg6 20.Bb2 Bg4+=) 19...Bd7 (19...gf5 20.ef5 Bf5 21.Qe1=) 20.Rg3 White threatens to win material: Rg3xg5 20...Qe7 (better is 20...Qf6!?= and Black hangs on) 21.fg6+/- hg6 22.Rg6 Qh4 (22...Be6 23.Rg3 Bb3 24.Rb3+/- (worse is 24.cb3 f5+=)) 23.Qf3 (23.c3 Kh7 24.g3 Qh3 25.Rg7 Kg7 26.cd4 b5 27.ab5 ab5+/-) 23...Ba4?? cause more grief (better is 23...Rac8+/-) 24.Rg4+- (24.Rg4 Qh6 25.Ba4+-) 1–0. Zuazua Iglesias,F – Blanco Fernandez,M, Asturias–ch Primera B, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Bc4 Nc6 5.Bb2 Nf6 6.d3 e6 7.Nd2 Be7 8.f4 0-0 9.Ngf3 a6 10.a4 Rb8 11.0-0 b5 12.ab5 ab5 13.Bb3 Nd4 14.Nd4= cd4 15.Nf3 Bc5 16.Qe2 Ng4 17.Rfb1 Ne3 18.Bc1 Ng4 19.h3 Nf6 20.Ba3 Qe7 21.Bc5 Qc5 22.Qf2 Rd8 23.Qg3 Bb7 24.Ne5 Ne4 25.de4+= Be4 26.Kh2 Bc2? 27.Rc1+- d3 28.Nd3! Rd3 2.Qd3!! Bd3 30.Rc5 h6 31.Rd1 Be4 32.Rd4 Bf5 33.Rb4 Bd3 34.Bc4! (34.Bc4 Bc4 35.Rcc4+-) 1–0. vuirweirv (1940) – 1xava (1615), kurnik, 2011.

4.Bc4 Nc6 5.Nf3 e6 6.d3 Nf6= 7.Nc3 Be7 8.Be3 0-0 9.0-0 a6 10.a4 b6 11.Nd2 Ne5 12.Bb3 Bb7 13.Nc4 Nc4 14.Bc4 Bc6 15.f4 g6 16.Qf3 Qc7 17.e5. mbarker (2155) – macedon (2180), net–chess.com, 2008.

4.Bc4 Nc6 5.Nf3 Bg4 6.Bf7! Kf7 7.Ng5 Kf6?? 8.Qg4+- Ne5 9.Qf5 1–0. Leoni,Alessandro (1985) – Krahl,Wolfgang, IECG, 2001.

4.Bc4 e6 5.Ne2 Nc6 6.d3 Na5 7.Nd2 a6 8.0-0 b5 9.Bb3 Be7 10.Bb2 Nf6 11.e5 Nd7 12.f4 Bb7 13.f5 Nb3 14.ab3 Qb6 15.fe6 fe6 16.Kh1 Qc6 17.Nf3 0-0-0 18.Qd2 g5 19.Ng3 ½–½. Bravo Lutz,Sebastian – Szyle,Rudi, Kassel op (7), 1998.

4.d3 Nc6 5.Nf3 Bg4 6.Be2 e5 7.Bb2 Nf6 8.Nbd2 Bd6= 9.Ng5 Be2 10.Qe2 h6 11.Ngf3 0-0 12.h3 Nd4 13.Qd1 b6 14.g4 Bc7 15.g5 Nd7 16.gh6 gh6 17.c3 Ne6 18.Qe2 Nf4 19.Qf1 Nf6 20.d4 ed4 21.cd4 cd4 22.Bd4 Qe7 23.e5 Rfe8 24.Kd1 N6d5 25.Qg1 Kh7 26.Qg4 Rg8 27.Qf5 Rg6 28.Ne4 Qe6?? 29.Qe6 fe6 30.Nf6 Nf6 31.ef6 Rd8 32.Kc2 Rg2 33.f7 Rd4?? 34.Nd4 Rf2= 35.Kb3 Nd3?? 36.Ne6 Bd6?? 37.Rhf1 Rb2 38.Kc4 (38.Kc4 Ne5 39.Kd4 Rd2 40.Ke3+-) 1–0. inznorek (1765) – piaski000, kurnik, 2011.

4.e5 Nc6 5.Bb2 Bf5 6.h4 Nh6 7.Na3 Ng4 8.f4 h5 9.Nf3 e6 10.Bb5 a6 11.Bf1 Be7-/+ 12.Qe2 0-0 13.0-0-0 Nd4 14.Bd4? cd4-+ 15.Nb1 Rc8 16.d3 Qd5 17.a3 Rfd8 18.Kd2 Qa5 19.Kc1 Ba3 20.Na3 Qa3 21.Kb1 Rc6 22.Nd4 Rd4 23.c3 Rb6 24.Kc2 Rb2 25.Kc1 Qa1 0–1. Dragoy,Sven – Schmeling,Manfred, Schleswig Holstein–chG, 1990.

4.Nf3 e6 5.c3 Nf6 6.Qc2 Nc6 7.Be2 Be7 8.0-0 b6 9.d4 0-0 10.Bb2 cd4 11.cd4 (better is 11.e5!? Nd5 12.cd4+=) 11...Nb4-/+ 12.Qa4 Bd7 13.Qb3 Ne4 14.Ne5 Rc8 15.Bf3 Ng5 16.Bd1 h6 17.Nc3 Bc6 18.h4 Nh7 19.a3 Nd5 20.Bf3 Ba8 21.Ne4 Nhf6 22.Rfe1 Ne4 23.Be4 Bh4 24.Qh3 Bf6 25.Bc1 Bg5 26.Bb2 Nf4 27.Qf3 Be4 28.Re4 Nd5 29.Rae1 Rc2 30.Qb3 Qc7 31.a4 a5 32.Ba3 Rc3 33.Qb2 Rc8 34.Nf7 (34.Qa1-+) 34...Qf7 (worse is 34...Kf7 35.Re6 Qc4 36.Qb1-+) 35.f3 (35.Re6 Nf4 36.R6e3-+) 35...Bc1 36.Qb5 (36.Qc1 Rc1 37.Bc1 Qd7-+) 36...Ba3 37.Re6 Nf4 (better is 37...Nc7!? 38.Qb6 Ne6 39.Qe6 Qe6 40.Re6-+) 38.Qb6 Rc1 0–1. Zickelbein,Eva Maria (2135) – Armas,Lara Maria (1890), Naujac sur Mer op, 2008. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nf3 Bg4 5.Bc4 Nc6 6.Bf7! Kf7 7.Ng5 Ke8 8.Qg4 Nf6 9.Qe6 Qd6 10.Qf7 Kd7 11.Qb3 Kc7 12.Nc3 Nd4 13.Nb5 Nb5 14.Qb5 Qe5?? (better is 14...Qb6 15.Qb6 Kb6 16.Rb1 Kc6+-) 15.d4! a6 (15...cd4 16.Qe5; 15...Qd4 16.Ne6) 16.Qd3 cd4 17.Bf4!! (17.Bf4 Qf4 18.Ne6 Kb8 19.Nf4+-) 1–0. Mendonca (1760) – Veloso (2005), Itauna op, 2009. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.f4 e5 5.Nf3 Bg4 6.Bb5 Nc6 7.Bb2 Qb6 8.Bc6 Qc6 9.d3 ef4 10.0-0 f6 11.Nc3 0-0-0 12.a4 Ne7 13.Nb5 Kb8 14.Qd2 Ng6 15.Na7?? Ka7-+ 16.Qa5 Qa6 17.Qd8 Bd6 18.Bf6 Rd8 19.Bd8 Bf3 20.Rf3 Ne5 21.Rff1 Nc6 22.Bg5 Nd4 23.Ra2 c4 24.Rd1 Qa5 25.Bh4 Qh5 (25...Qh5 26.Rb1 Ne2 27.Kf1 Nc3 28.Bf2 Ka8-+) 0–1. Malaczek,Mateusz (1815) – Krajewicz,Pawel (1980), 2009.

4.Bb2 Nc6

5.Bc4 Qc7 6.Nf3 Bg4 (better is 6...Nf6!? 7.Nc3 Bg4+=) 7.Bf7!+- Kf7 8.Ng5 Ke8 9.Qg4 Nf6 10.Qe6 Nd8 11.Qc4 e5 12.Nc3 Be7 13.Nb5 Qb8 14.Ne6 Ne6 15.Qe6 Nd7 16.0-0-0 a6 17.Nc3 Rf8 18.Nd5 Qd6 19.Qd6 Bd6 20.f3 b5 21.d3 a5 22.c4 b4 23.Rhf1 g5 24.g3 a4 25.f4 a3 (25...gf4 26.gf4 ef4 27.e5+/-) 26.Ba1 gf4 27.gf4 ef4 28.e5! Bb8 (28...Be5 29.Be5 Combination; 28...Ne5 29.Nf4) 29.Nf4 (better is 29.Rde1!? b3 30.ab3+=) 29...Ra6 (worse is 29...Be5 30.Be5 Ne5 31.Rde1+-) 30.Kc2 Ne5 31.Rde1 Rf5 32.Nd5 Rf1 33.Rf1 Re6 34.Nf6 Ke7 35.Ne4 Ng4 36.Rg1 Rg6 37.Re1 Re6 38.Rg1 Rg6 39.Kb3 Bh2 40.Rg2 Bd6 41.d4 cd4 42.Bd4 Ne5 43.Rh2 (worse is 43.Nd6 Rg2 (worse is 43...Kd6 44.Be5 Ke5 45.Rh2+=) 44.Be5 Ke6-+) 43...h6 (43...Ke6 44.Rh7 Nc6 45.Bc5 (45.Nd6?! Nd4 46.Kb4 Kd6+=) 45...Bc5 46.Nc5 Kd6 47.Rh5=) 44.c5 (better is 44.Nd6!? Kd6 45.c5 Kd5 46.Be5 Ke5 47.Rh5 Kf4 48.Kb4+/-) 44...Bc7= 45.Kb4?? (better is 45.Be5 Be5 46.Rc2=) 45...Nc6-+ 46.Kc4 Bh2 47.Be3 (47.Bc3 Rg2 48.Kb3 Ke6-+) 47...Re6 (better is 47...Rg4 48.Bh6 Re4 49.Kd5-+) 48.Nd6 Bd6 49.cd6 Kd6 50.Bc5 Kc7 51.Ba3 h5 0–1. Nguyen Quang Duc – Lu Chan Hung, VIE–ch Cao Lanh Dong Thap, 2006. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6)

5.Bc4 e6 6.f4 a6 7.a4 Nf6 8.d3 Bd7 9.Nd2 Qc7 10.Ne2 Ng4 11.Nf1 Na5 12.Ba2 c4 13.h3 Nf6 14.Be5 Bd6 (better is 14...Qd8=) 15.Bd6+/- Qd6 16.e5 Qb4 17.c3 Qa4 18.ef6 cd3 19.Qa4 Ba4 20.fg7 Rg8 21.Nd4 b5 22.Kd2 Nb7 23.Bb1 Rg7 24.Ne3 (24.Kd3?! Rg2 25.Rh2 Rg7+/-; 24.Bd3?! Rg2 25.Ke3 Rc8+/-) 24...Nc5 25.Bd3 Bb3?? (better is 25...Rd8+-) 26.Bb5! Ke7 27.Bd3 Kd7 28.Rhb1 Bd5 29.Bb5 Kc8?? 30.Bc6 Bc6 31.Nc6 Kc7 32.Nd4 Rg3 33.Ke2 Ne4 34.Ra3 Rgg8 35.Rba1 Rgd8 36.Kd3 Nc5 37.Kc4 Kd6 38.Nb3 Nb3 39.Kb3 Ke7 40.Ra6 Rac8 41.Ra7 Kf6 42.Ng4 (42.Ng4 Kg7 43.Ne5+-) 1–0. Kudelka,Janusz (2070) – Karpinski,Bartlomiej (1835), DMR KPZSzach Poland, 2008. (=1.e4 c5 2.b4 d6 3.bc5+= dc5 4.Bb2 Nc6)

5.Bc4 Nf6 6.e5 Nd5 7.Qf3 (7.d3 Be6=) 7...e6 (7...Be6 8.Qe4=) 8.Ne2 (8.a4 Ndb4 9.Na3 h5=) 8...Be7 (8...Nb6 9.Qf4=) 9.0-0 (9.Qg3 g5=) 9...0-0 (9...Nb6 10.d3=) 10.Na3 (10.Qe4 h5=) 10...a6 (10...Ndb4 11.Qe3=) 11.Qh3 (11.Bd3 Bd7=) 11...g6 (11...h6 12.Bd5 ed5 13.Qf3+=) 12.f4 b5 13.Bd3 Ndb4 (better is 13...c4 14.Be4 Qa5+=) 14.Rf3? (14.Be4 Bb7 15.Qe3 Nd5=) 14...Nd3 (better is 14...c4!? 15.Qh6 Bc5 (15...Nd3?? 16.Rh3 Bh4 17.cd3+-; worse is 15...cd3 16.Rh3 Bh4 17.Rh4 Qh4 18.Qh4 de2 19.Qf2+-) 16.Kh1 Ra7+= (16...cd3 17.Rh3 Qh4 18.Rh4+-)) 15.Rd3 Nd4 (15...Qb6 16.Qe3 Na5-/+) 16.Nd4 cd4 17.Qh6 (17.Bd4 Qd5 18.Be3 Qe4+=) 17...f5 (17...f6 18.c4+= (18.Rd4? Bc5 19.c3 Bd4 20.cd4 Qa5-+)) 18.ef6 (18.c3!?=) 18...Bf6+= 19.Re1? (19.c4 e5 20.cb5 ab5-/+) 19...Qd6 (19...e5 20.Rf3 (20.fe5?? Bg7 21.Rd4 Qd4 22.Bd4 Bh6-+) 20...Bg7 21.Qg5-+) 20.Re4? (20.Rh3 Ra7 21.Nb1-/+) 20...Bb7-+ 21.Bd4 Qc6?? 22.Bf6 Rf6-/+ 23.Re2 Raf8-+ 24.Rh3? R8f7 25.Rd3 Qb6 26.Rde3 Rf4 27.h3 Bd5 28.Kh2 Qd6 29.Rg3 Rf2 30.Qe3 R7f3 31.Qf2-/+ Rf2 32.Rf2 Ba2 33.c4? bc4 34.Nc2 Bb1 35.Ne3 Bd3 36.Ng4 1–0. Schaffranietz,Horst (1815) – Stoehr,Herbert (2030), Regionalliga SW, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6)

5.Nf3 Qb6 6.Qc1 Nf6 7.Nc3 Bg4 8.Rb1 Bf3 9.gf3 e5 10.Nd5 Qd8 11.Bc4 a6 12.a4 Rb8 13.Bc3 Bd6 14.Rg1 g6 15.d3 Nd5 16.Bd5 Nd4 17.Bd4 ed4 18.Rb7 Rb7 19.Bb7 Qb6 20.Bd5 Qb4 21.Ke2 Qa4 22.h4 h6 23.Qb2 Qb5 24.Qa2 Qd7 25.Qa6 Ke7 26.Qa2 Kf6 27.Rg4 g5 28.Qa6+/- Qe7? 29.f4 Rd8? 30.hg5 hg5 31.Rg5 Qd7 32.e5 Ke7 33.Qd6 Qd6 34.ed6 Rd6 35.Be4 Ke6 36.Rc5 Ke7 37.Rd5 Re6 38.Re5 f6 39.Re6 Ke6 40.f5 Ke5 41.Kf3 Kd6 42.Kg4 Ke7 43.Kh5 Kf7 44.Kh6 (44.Kh6 Kf8 45.Kg6+-) 1–0. Lopez de Turiso,J (2135) – Tolosana Esteban,E (1950), XXV Aniversario (5), 2008.

5.Nf3 e6 6.Bc4 Bd7 7.0-0 a6 8.a4 Qc7 9.d4 (9.d3 Nf6+=) 9...cd4= 10.Nd4 Rd8 11.Qe2 Nf6 12.Nd2 Be7 13.Kh1 e5 14.Nf5 Bf5 15.ef5 0-0 16.Nf3 e5 draws heavy fire (16.Rfe1!?+=) 16...e4-/+ 17.Ng5 Nd4 18.Bd4 Rd4 19.Bb3 h6 20.Nh3 (20.Nf7 Rf7 21.Rad1 Rb4-/+) 20...Bb4 (20...Rfd8 21.Rad1-+) 21.Rad1 Rfd8 22.Rd4 Rd4 23.Rd1 Qe5 24.Rd4 Qd4 25.g4 (25.Qc4 Qc4 26.Bc4 Kf8-/+) 25...Qc3 26.Kg2 Bd6 27.g5 hg5 28.Ng5+= Qe5 29.Qc4?? Qh2-+ 30.Kf1 Qh1 31.Ke2 Qh5 32.f3 Qg5 33.Qf7 Kh7 34.fe4 Qh5 35.Qh5 Nh5 36.Ke3 Be5 37.a5 Nf6 38.Be6-/+ Ne8 39.c4 ½–½. Landsrath,Mario – Weisbrod,Theodor, SVR–ch op Reil, 2000. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

5.Nf3 Nf6 6.e5 Nd5 7.Bb5 e6 8.Bc6 bc6 9.c4 Nf4 10.0-0 g5 11.d4 (better is 11.Bc3!?+=) 11...g4+= 12.Nfd2 Rg8 (better is 12...Nd3 13.Qc2 Nb2 14.Qb2 Qd4-/+ (14...cd4?! 15.Ne4 Qb6 16.Qc1=)) 13.Ne4+/- Be7 14.dc5 Rg6? (better is 14...Rb8!? 15.Bc3 Qd1 16.Rd1 Ba6+=) 15.Nd6+- Kf8 16.Bc1 Nh3? (better is 16...Nh5+-) 17.gh3 gh3 18.Kh1 Bg5 19.Rg1 (better is 19.Qf3!? Qd7+-) 19...Bc1 20.Rg6 hg6 21.Qc1 Kg7 (21...Qh4 22.Qf1+-) 22.Qf4 Bb7 (22...Qe7+-) 23.Qf7 Kh6 24.Qf4 (better is 24.Qb7 Qb8 25.Nf7 Kg7 26.Qb8 Rb8+-) 24...Kh7 25.Qf7 Kh6 26.Qb7 Qa5 (26...Qb8+-) 27.Na3 (better is 27.Nd2! Rf8 28.Qe7+-) 27...Qa3 (27...Qc3 28.Nf7 Kh5 29.Qb3 Qa1 30.Nb1+-) 28.Qb3 (better is 28.Qf7 Qd3 29.Qf6+- (29.Qe6?? Qf3 30.Kg1 Qg2)) 28...Qc5 (28...Qb3 29.ab3 Rb8+-) 29.Qh3 Kg7 30.Rb1 (30.Rb1 Qb6 31.Rb6 ab6 32.Qe6+-) 1–0. Louison,Lewis (1660) – Lagarde,Benjamin, FRA–ch Accession, 2006. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6)

5.Nf3 Bg4 6.Bb5 Qa5 7.c4 Qb6 =.

5.Nf3 Bg4 6.Bc4 Nd4?? 7.Bf7! Kf7 8.Ne5 Ke8 9.Ng4 Nf6 10.Nf6 ef6 11.0-0 Bd6 12.c3 Nc6 13.Na3 Ne5 14.d4 cd4 15.cd4 Nf7 16.Nc4 (16.Re1 a6+-) 16...Bc7? (better is 16...Bh2!? 17.Kh2 Qc7 18.Ne5 fe5+/-) 17.Qb3+- Bb6 18.Rac1 Kf8 19.e5 Qd5 (19...Bd4 20.e6 Bb2 21.Qb7 Qe8 22.ef7 Qb8 23.Qb2 Qb2 24.Nb2 Kf7 25.Rc7 Kg6+-) 20.Qa3 Ke8 21.Nb6 (21.Nb6 ab6 22.Qa8 Kd7 23.Qa4 Ke6 24.Rc7+-) 1–0. Aufmwasser,Guenter (1605) – Vogel,Peter (1655), Bad Woerishofen Seniors op, 1996. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6)

5.Nf3 Bg4 6.Be2 Qd6 (6...Qb6 7.Bc1+=) 7.0-0 (better is 7.Bb5=) 7...Nf6?? throwing away the advantage (better is 7...Qf4+= this is the best way to fight back) 8.e5+- Qc7 9.ef6 ef6 (9...gf6 10.Ng5! Deflection: f6 10...h5 11.Ne4+-) 10.Nc3 (10.Re1 keeps an even firmer grip 10...Be7+-) 10...Bd6 (10...Be6 11.d4 Qb6 12.d5 Qb2 13.de6 fe6 14.Qd3+-) 11.Nb5 Qd7 12.Nd6 Qd6 13.d4 Rd8 (13...0-0 14.Ba3 Bf3 15.Bf3 Nd4 16.Bb7+-) 14.dc5 (14.Ba3!? makes it even easier for White 14...Bf3 15.Bf3 Nd4 16.Re1 Kf8 17.Bb7 Qc7+-) 14...Qc5 15.Qe1 (better is 15.Qc1!? b5 16.Qf4 Bf3 17.Qf3+- (17.gf3?! 0-0+-)) 15...0-0+/- 16.Qc3 Qf5 (16...Qc3 17.Bc3 Rd5 18.h3+/-) 17.Rad1 Rc8 18.Qd3 (better is 18.Rd2+-) 18...Qc5? (better is 18...Qe6+-) 19.Ba3 Nb4 20.Qb3 a5 21.Rc1 Rfe8 22.Bc4?? Qc4-/+ 23.Bb4 Qb3 24.cb3+= ab4 25.Rc8 Rc8 26.Nd4 h6 27.f3 Be6 28.Kf2 Rd8 29.Ke3 f5 30.Nc2 g5 31.Nb4= f4 32.Ke2 Bd7 33.Rc1 Bb5 34.Ke1 Re8 35.Kf2 Re2 36.Kg1 Kg7 37.Rc5?? Re1 38.Kf2 Re2 (38...Rf1) ½–½. Siegel,Rainer – Fuchs,Maria, Leipzig VfB op, 2002. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6)

5.Nf3 Bg4 6.Be2 e6 7.0-0 Nf6 8.d3 Be7 9.Nbd2 0-0 10.Nc4 Qc8 (10...Nd7 11.Rc1=) 11.a4 (11.Nce5 Qc7+=) 11...Rd8 (11...Nd7 12.Qe1=) 12.Qc1 (12.Nfe5 Ne5 13.Be5 Be2 14.Qe2+=) 12...a6? (better is 12...Qc7= would keep Black in the game) 13.Nb6+/- Qc7 14.Na8 Ra8 15.Re1 (15.h3 Bf3 16.Bf3 Rf8+/-) 15...Rd8 16.h3 Bh5 17.Nd2 Bg6 (17...Be2 18.Re2 Rc8 19.Qe1+/-) 18.Nf1 (18.Bc3 b5+/-) 18...Nd4 19.Bd4 (19.Rb1 Nd7+/-) 19...cd4+= 20.Rb1 a5 21.Bf3 (21.Nd2 Bb4+=) 21...Bb4 22.Re2 Rc8 23.Qg5 h6 24.Qb5 e5 25.Nd2 Qc2+= 26.Rb4 ab4-/+ 27.Qb4? Qd3 28.Qb7 Rc2 29.a5 Rd2 30.Rd2= Qd2 31.a6 Qc1 32.Kh2 Qf4 33.Kg1 Qc1 34.Kh2 Qf4 Twofold repetition 35.Kg1 Be4 36.Be4 Ne4 37.a7 Qf2 38.Kh2 Qg3 39.Kg1 ½–½. Gomez Alvarez,FF – Perez Lopez,M, Asturias–ch Primera A, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

4.Nc3 Nc6

5.Rb1 e6 6.Nf3 Nf6 7.Bc4 a6 8.a4 Bd6 9.0-0 (9.h3 Qc7 10.0-0 Bd7 11.d3 h6 12.Be3 0-0 13.Qe2 Na5 14.Ba2 Nc6 15.Bc4 Na5 9.h3; 9.Ba3 Qc7 10.g3 h6 11.0-0 Bd7 12.Re1 0-0 13.d4 cd4 14.Bd6 Qd6 15.e5 Qc5 9.Ba3) 9...0-0 10.h3 Qc7 11.d3 h6 12.Qe2 Bd7 13.Nd1 Ne5 14.Ne5 Be5 15.a5 Qa5 16.Rb7 Rfb8 17.Rb3 Rb3 18.Bb3 Rb8 19.Ne3 Bb5 20.Bc4 Bd4 21.Bd2 Bc3 22.Bc3 Qc3 23.Rb1 Nd7 24.Qe1 Qe1 25.Re1 Bc4 26.Nc4 Rb4 27.Ra1 Nb6 28.Nb6 (worse is 28.Ra6 Nc4 29.dc4 Rc4-/+) 28...Rb6 29.Ra5 Rc6 30.Kf1 e5 31.h4 f6 32.h5 c4 33.Ke2 Kf7 34.g4 Ke6 35.dc4 Kd6 36.Kd3 Kc7 37.c5 Kd7 38.Kc4 Ke6 39.Ra3 Kd7 40.Kd5 Kc7 41.c4 Kd7 42.Rb3 Kc7 43.Rb8!! Kd7 (43...Kb8 44.Kc6 Deflection) 44.Rd8!! (44.Rd8 Kd8 45.Kc6+-) 1–0. Stoppa,O (2285) – Garonzi,M (2000), 11th Condino Open, 2011. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.Rb1 e6 6.Nf3 g6 7.Bb2 Bg7 8.Be2 Nge7 9.d3 0-0 10.h4 Nd4 11.Ng5 (11.Qd2 h5=) 11...Ne2 12.Qe2 Qa5 13.Qd2 Rd8 14.h5 h6 15.Nf3 c4 (15...g5 16.0-0 Nc6 17.Nb5 Qd2 18.Nd2+=) 16.hg6 Ng6 17.0-0 (17.Ba1 b6=) 17...Qh5 (17...e5 18.Ba1+=) 18.Ne2= e5 19.Qe3 Be6 20.a4 (20.Ng3 Qg4=) 20...b6 21.Ba3 Rac8+= 22.a5 cd3 23.cd3 ba5 24.Rb5 Qg4 25.Ra5= Nf4 Attacks the backward pawn on d3 26.Nf4 ef4 27.Qe2 Rc3 28.Rd1+= Rdc8 29.Ra7+/- Rc2 30.Qf1 Qg6 31.Ne1?? Ra2-/+ 32.Ra5?? Bd4 33.Bb4?? Rf2-+ 34.Qf2 Bf2 35.Kf2 Qg3 36.Kf1-/+ Rd8 37.Ra3 Bg4 38.Rd2 Qh2 39.d4 Qh1 40.Kf2 Qh4 41.Kf1 Qh1 42.Kf2 Qh4 43.Kf1 ½–½. Reh,Stefan (1915) – Kruse,Walter (1770), Bad Zwesten op 4th, 2000. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.Bb5 Bd7 6.Bc6 Bc6 7.Rb1 e6 8.Nf3 Nf6 9.d3 b6 10.0-0 Be7 11.h3 Qc7 12.Nd2 0-0 13.f4 Nd7 14.Nc4 a6 15.Be3 b5 16.Nd2 f5 17.e5 Nb6 18.Qe2 b4 19.Nd1 Na4 20.Nc4 Bd5 21.Ncb2 Nb2 22.Rb2 c4 23.Nf2? c3-+ 24.Rb3 Qc6 25.Nh1 Bb3 26.ab3 a5 27.Ra1 a4 28.Ra4 Ra4 29.ba4 Qa4 30.Nf2 b3 31.cb3 Qb3 0–1. Pappelis,D (1885) – Sandalakis,A (2340), 36th TCh–GRE (2), 2008.

5.Bb5 Bd7 6.Nf3 a6 7.Bc6 Bc6 8.0-0 g6 9.Re1 Bg7 10.e5 Nh6 11.d3 0-0 12.Ne4 b6 13.Bf4 Nf5 14.Rb1 Nd4 15.Nfd2 f6 16.ef6 ef6 17.Nc4 Be4 18.de4 b5 19.Nd6 Qa5 20.Be3 Qb6 21.Bf4 Qa5 22.Be3 Qb6 ½–½. Macicek,Jak (2060) – Straka,Jo (1905), 17th Pobeskydi Radegast Cup (3), 2006.

5.Bc4 a6 6.a4 Nf6 7.Nge2 Bg4 8.0-0 e5 9.f3 Bd7 10.Nd5 Nd5 11.Bd5 Bd6 12.c3 0-0 13.Ba3 Be7 14.d4 cd4 15.cd4 Ba3 16.Ra3 ed4 17.Kh1 Rb8 18.Nd4 Nd4 19.Qd4 Qe7 20.Rb3 Be6 21.Qe5 Rfe8 22.Rfb1 Bd5 23.Qd5 Red8 24.Qa5 Qd6 25.h3 (25.Rb7?? Rb7 26.Rg1 Rb2-+) 25...Rd7 26.Rb6 h6 1–0. Garcia Alvarez,JB – Lopez Lopez,PJ, Asturias–ch Oviedo, 2003. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.Bc4 e6 6.Nf3 Nf6 7.0-0 Be7 8.Rb1 a6 9.a4 Qc7 10.Re1 Nd7 11.Bb2 Bf6 12.Bf1 b6 13.Ne2 Bb2 14.Rb2 Bb7 15.d4 cd4 16.Ned4 0-0 17.Qb1 Rfd8 18.Ne2 Rab8 19.Ng3 Nc5 20.Qa1 Na5 21.Bd3 Rd3 22.cd3 Nd3 23.Rbb1 Ne1 24.Re1 Rc8 25.Qd4 Qc5 26.Qd2 h6 27.h3 Nb3 28.Qf4 Nd4 29.Ne5 f6 30.Nd7 Qc3 31.Rf1 Qg3! 32.fg3 Ne2 33.Kh2 Nf4 34.Rf4 Rc6 35.e5 Rc2 36.h4 Bg2 37.Kg1 Bc6 38.Nb6 fe5 39.Rc4 Rc4 40.Nc4 Ba4 41.Ne5 Bb3 42.Kf2 a5 43.Ke3 a4 44.Kd2 a3 45.Kc3 a2 46.Kb2 Bd5 47.Ng4 Kf7 48.Ne3 Kf6 49.g4 Ke5 50.g5 hg5 51.hg5 Kf4 52.Nd5 ed5 53.Ka2 Kg5 (53...Kg5 54.Kb3 Kf4-+) 0–1. Penttinen,Jarkko – Tervaniemi,Kimmo, Jyvaskyla op (2), 1991.

5.Bc4 e6 6.Nf3 Nf6 7.Rb1 Be7 8.Bb2 a6 9.Be2 Nd4 10.0-0 b5 11.a4 Ne2 12.Qe2 b4 13.Nd1 Bd7 14.Ra1 Qa5 15.Ne5 Ba4? (better is 15...0-0=) 16.Nc4+- Qb5 17.Bf6 gf6 18.Ndb2 Rd8 (18...Bc2 19.Nd6! Bd6 20.Qb5 ab5 21.Ra8 Kd7 22.Rh8+-) 19.Ra4 1–0. Siats,Norbert – Hartmann,R, TT/4303 corr BdF, 1995. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.Bc4 Nf6 6.Rb1 e6 7.Nf3 Be7 8.0-0 0-0 9.e5 Nd5 10.Ne4 a6 11.Re1 b5 12.Bf1 Nb6 13.d3 Bb7 14.Bb2 Rc8 15.Qc1 Nd4 16.Qf4? Nd5 17.Qg4 Nc2 18.h4?? Ne1-+ 19.Re1 Kh8 20.Nfg5 Bg5 21.hg5 Ne7 22.Nd6 Rc7 23.Re3 Nf5! 24.Rh3 Nd4?? 25.Nb7+- Rb7 26.Qe4 g6 27.Qb7 Qg5 28.Bd4 cd4 29.Qe4 Rd8 30.Rf3 Qe7 31.Qf4 Kg7 32.Rh3 Rh8 33.Qd4 Qa3 34.Qh4 h5 35.Qf6 Kg8 36.Rf3 Rh7 37.d4 Qb2 38.Bd3 Rg7 39.d5! ed5 40.Qd8 Kh7 41.Qd5 Qc1 42.Kh2 Qc7 43.g3 Kg8 44.e6 fe6 45.Qe6 Kh7 46.Bg6! Rg6 47.Rf7 (47.Rf7 Qf7 48.Qf7 Kh6 49.f4+-) 1–0. Schultz Pedersen,J (2165) – Eljanov,V (2355), Politiken Cup (7), 2008.

5.Bc4 Nf6 6.Nf3 Bg4 7.h3 Bf3 8.Qf3 e6 9.0-0 Be7 10.Bb5 0-0 11.Bc6 bc6 12.d3 Qd4 (12...c4 13.Bf4+=) 13.Bd2 (13.Bb2 Rfb8 14.Nd1 Qa4=) 13...Rab8 14.Rab1 Nd7 15.Kh1 Bd6 16.Qe2 Rb1 17.Rb1 Rb8 18.Rb8 Bb8 19.f4 (better is 19.Qe1!?=) 19...Bf4-/+ 20.Bf4 Qc3 21.Qd1 h6 22.Kh2 Qb2 23.a3 (23.a4 Qd4-/+) 23...Qa3-/+ 24.d4? White prepares the advance e5 (better is 24.Qb1!?-/+) 24...Nf6 25.dc5 Qc5 26.Qd8 Kh7 27.Qd3 a5?? (better is 27...e5-+) 28.e5+= g6 29.ef6 a4? (better is 29...Qf5 30.Qd4 c5+= (30...Qc2?? 31.Qd7 Qg2 32.Kg2 Kg8 33.Qe8 Kh7 34.Qf7 Kh8 35.Qg7)) 30.Qd7+- Qf8 31.Qc6 1–0. Bergas Ferriol,Jeronimo (2130) – Boix Pons,Catalina (2060), Mallorca–ch pref, 2000. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.Nf3 Bg4 6.Rb1 b6 7.Bb5 Rc8 8.Qe2 e6?? (better is 8...Nf6+=) 9.Bc6+- Rc6 10.Qb5 Qc7 11.Ne5!! Qe5 12.Qc6 Ke7 13.Qb7 Kf6 14.h3 Bh5 15.g4 Bg6 (15...Ne7 16.f4 Qd4 17.gh5+-) 16.f4 (better is 16.d4 cd4 17.f4 dc3 18.fe5 Ke5 19.Qb8 Ke4 20.Qf8 h5+-) 16...Qf4 17.Rf1 Qf1 18.Kf1 Ne7 (18...h6+-) 19.d4 cd4 20.g5 Ke5 21.Qb8 (21.Qc7) 1–0. Zelinsky,A (2090) – Ivasyshyn,Taras, 6th Volodymyr Bilinsky Memorial, 2011. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.f4 e5 6.Nf3 (6.fe5!? Ne5 7.Nf3+=) 6...ef4+= 7.Bc4 Be7 (7...Nf6 8.Nd5+=) 8.0-0= Nf6 9.d3 Nd4 10.Ne5 (10.Kh1 Be6 11.Bf4 0-0=) 10...Be6 (10...Nc6!? 11.Nf3 Bg4=) 11.Bf4+= Bc4 12.Nc4 0-0 (12...b5 13.Ne3 b4 14.Ncd5 Nd5 15.Nd5+=) 13.a4 (13.Rb1 b6+/-) 13...b6 (13...Qd7 14.Ne3+=) 14.Kh1 (14.Nb5 Qd7+/-) 14...Qd7 15.h3 (15.Bg5 Rae8+=) 15...Qe6 16.Ne3 Rad8 17.Ncd5 Nd5 (17...Rd5 18.Nd5 Nd5 19.ed5 Qd5 20.c4+=) 18.Nd5 (18.ed5 Qd7+=) 18...f5= 19.c3 Nc6 20.Qb3 (20.Nc7 Qc8=) 20...Kh8 21.Rae1 fe4 22.c4 Nd4 (22...Bd6 23.Re4 Qd7 24.Kg1+=) 23.Qd1= (23.Re4?? Qe4 (23...Nb3?! 24.Re6 Bd6 25.Ree1=) 24.Qb1 Qe2-+) 23...Bd6 24.Re4 Qg6 25.Bd6 Qd6 26.Rfe1 Nf5 27.Kg1 Qh6 (27...Qg3 28.Rf1 Nd4 29.Re3=) 28.Qg4+= Qd2 29.Qe2 (29.Nf4 Rb8+=) 29...Qg5 (29...Qh6 30.Rf4 Rd5 31.Ref1=) 30.Qg4 Qd2 31.Qe2 Qe2 (31...Qg5 32.Rg4 Qh5 33.Rf4 Qe2 34.Re2+=) 32.R4e2 (worse is 32.R1e2 Ng3 33.Re1 Ne4 34.de4 Rd6-+) 32...h6 (32...g6 33.Rf1+=) 33.Re5 Kh7 34.Kh2 Rd7 (34...Rb8 35.Rf1 Nd6 36.Rf8 Rf8 37.Re6=) 35.Re8 (35.a5 ba5 36.Rf1 Rdf7+=) 35...Rff7 (35...Re8 36.Re8 Kg6 37.a5=) 36.R1e5 Nd4 37.Ra8 (37.h4 Nc6 38.Re4 Nb4=) 37...Rf2 (37...Nc6!? 38.Re1 Nb4 39.Nb4 cb4+=) 38.Ree8= Kg6 39.Rf8 (39.Kg1 Rff7=) 39...Rf8+= 40.Rf8 Nc6 41.Re8 (41.Nf4!? Kh7 42.Ne6+=) 41...Nb4-/+ 42.Nf4 Kf5 43.Re4?? (better is 43.g3-/+) 43...Nd3-+ 44.Nd3 (44.Re2 Nf4 45.Rc2-+) 44...Rd3 (better is 44...Ke4 45.Nf2 Kd4-+) 45.Re7+= g6 46.Ra7 Rd4 47.Rb7 Rc4 48.Rb6 Ra4 49.Rb5 Rc4 50.Kg3 Rc3 51.Kf2 Rc2 52.Kf1 (52.Kf3 h5+=) 52...h5-/+ 53.Ra5 (53.h4 Ke4 54.Rb6 c4 55.Rg6 c3-/+) 53...g5 54.Ra8 Kf4 55.Rf8 Kg3 56.Rf3?? (better is 56.Rf5 Kh4 57.g3 Kg3 58.Rg5 Kh4 59.Rd5-/+) 56...Kh2-+ 57.g4 h4 58.Re3 c4 59.Rf3 c3 (59...Rg2 60.Rc3-+) 60.Re3 Rc1 61.Ke2 Kg2 62.Kd3 Rh1 63.Re5 (63.Ke4 c2 64.Re2 Kh3 65.Rc2 Kg4 66.Rg2 Kh5 67.Rc2-+) 63...Rh3 64.Kc2 Rg3 65.Rg5 (65.Re2 Kf3 66.Re7-+) 65...h3 66.Rh5 Rg4 67.Kc3 h2 68.Kd3 h1Q 69.Rh1 Kh1 70.Ke3 Kg2 71.Kd3 Kf3 0–1. Dimitrov,Pavel (2330) – Dourerassou,Jonathan (2470), Bastia FRA, 2014. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.f4 g6 6.Nf3 Bg7 7.Bb2 Nf6 8.Rb1 0-0=.

5.f4 g6 6.Nf3 Bg7 7.Bc4 Bc3 8.dc3 Qd1 9.Kd1 Nf6=.

5.f4 g6 6.Nf3 Bg7 7.Bc4 Nf6 8.0-0 0-0 9.e5= Nd7 10.e6 (10.Bd5 Nd4=) 10...Nb6 11.ef7 Kh8 12.Be2 (12.Bb5 Rf7 13.Bc6 bc6=+) 12...Rf7-/+ 13.Qe1 (13.Bb5 Nd4 14.Ng5 Rf8-/+) 13...Nd4 14.Ng5 Rf8 15.Bd1 h6 16.Nge4 Qc7 17.d3 Bf5 18.Rb1 Rad8 19.a4 Nd5 (19...c4!?=+) 20.Nd5= Rd5 21.c3 Nc6 22.Bc2 b6 23.Qe2 Rfd8 24.Be3 c4 (24...Qd7!? 25.Qf3 Rd3 26.Bd3 Qd3=) 25.d4 (25.dc4 Ra5 26.Rb5+/-) 25...e6? (better 25...Qc8!?+=) 26.g4+- Be4 27.Be4 Nd4 (better 27...Ne7!?+-) 28.cd4 R5d7 29.Rbc1 (29.Bg6 Qc6+-) 29...Bd4 30.Kh1 c3 31.Bg6 (31.Qf3!? Kg7+-) 31...Qc6 32.Kg1 e5? (better 32...Qa4!? 33.Rf2 Rd6+-) 33.Bf5 (better 33.Bd4!? ed4 34.Be8 Kg8 35.Bd7 Qd7 36.Qc4 Kh8+-) 33...Re7 34.Bd4 Rd4 35.fe5 Qc5 (35...Ra4 36.Qf3 Qf3 37.Rf3 Re5 38.Rfc3+-) 36.Qf2 Re5 37.Rce1 (better 37.Rc3! Qc3 38.Be4 Rf5 39.Bf5 Rd2+-) 37...Re1 38.Re1 (38.Qe1 Rg4 39.Kh1 Qc6 40.Be4 Re4-+) 38...c2?? (better 38...Kg7+-) 39.Bc2 (better 39.Re8 Kg7 40.Rg8 Kf7 41.Bg6 Ke7 42.Qf7 Kd6 43.Rd8 Kc6 44.Rc8 Kd6 45.Qf6 Kd5 46.Bf7 Ke4 47.Re8 Qe7 48.Re7 Kd3 49.Qf3 Kd2 50.Qe3 Kd1 51.Qe1) 39...Rg4-+ 40.Kf1 Qc4 41.Re2 Rf4 42.Ke1 Rf2 43.Kf2 Qd4 44.Ke1 a6 45.Bd3?? (45.Kf1-+) 45…Qd3 0-1. opperwezen - may6enexttime, lichess.org, 2020. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.f4 g6 6.Nf3 Bg7 7.Bc4 Nf6 8.0-0 Ne4 9.Bb2 Bd4 10.Nd4 Qd4 11.Kh1 Nf2 12.Rf2 Qf2-/+ (12...Qc4?! 13.Qc1=).

5.f4 g6 6.Nf3 Bg7 7.Bc4 Nf6 8.0-0 Ne4!-/+ 9.Ne4 Ba1-+ 10.c3 Bf5 (10...Qa5!?-+) 11.Neg5-/+ 0-0 (better 11...e6!? 12.Ba3 Bc3 13.dc3 h6=+) 12.Ba3= Qa5 13.Qb3 e6 14.Ra1 b5? (better 14...h6 15.Nh3 Bh3 16.gh3 Qc7=) 15.Qb5+- (15.Bb5 Rab8 16.c4 a6 17.Bc5 Rfd8=) 15...Qa3 16.Qc6 h6 17.Nh3 (better 17.Ne4!? Rac8 18.Qb7+-) 17...Bh3 18.gh3 Rad8 (18...Rab8 19.h4 Rb6 20.Qc7+/-) 19.Qe4 Kg7 20.Kh1 Qa4 (20...Kh8 21.h4 Rg8 22.h5+-) 21.Rg1+- Rd6? (better 21...a6+-) 22.Ne5 Qe8 23.h4 (better 23.Ng6!? fg6 24.Qe5 Rf6 25.Qd6 Qa8 26.Rg2 Qf8+-) 23...Rd2 (better 23...Qa8 24.Qa8 Ra8+-) 24.h5 Qa8 25.Qa8 Ra8 26.hg6 f6 27.Nf3 (27.Nd3 Rc8 28.f5 Rd3 29.Bd3 c4+-) 27...Rf2 (27...Rd6 28.f5! e5 29.Rb1+-) 28.Be6 Re8 29.Bd5 (29.Nh4 Re6 30.Nf5 Kg8+-) 29...Ree2? (29...Rd8 30.Rd1 Rd5 31.Rd5 Rf3+/-) 30.f5 h5 31.Rb1 Re7 (31...Rb2 32.Rd1 Kh6 33.Re1+-) 32.Kg1 (32.Rb8 Rfe2+-) 32...Rc2 33.Rb8 h4 1-0. opperwezen – muisback, lichess.org, 2020. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

5.f4 g6 6.Nf3 Bg7 7.Bc4 Nf6 8.Rb1 0-0=.

5.f4 g6 6.Nf3 Bg7 7.e5 Nd4=.

5.g3 g6 6.Bg2 Bg7 7.Nge2 e6 Controls d5 8.0-0 White castles and improves king safety 8...Nge7 9.Rb1 0-0 10.d3 a6 Secures b5 11.Na4 White threatens to win material: Na4xc5 11...Qa5 Black threatens to win material: Qa5xa4 12.Nb6 White threatens to win material: Nb6xa8 12...Rb8 13.Be3 (13.a3 Re8+=) 13...Nd4 14.a4 (14.Nc8 Less advisable is 14...Rfc8 15.Nd4 cd4=) 14...Nec6 15.Nf4 Qc3 Black threatens to win material: Qc3xc2 16.Rc1 Ne5 (16...Rd8 17.Nc4 Qb4 18.c3+-) 17.Kh1 (17.Ne2 Qa5 18.Nd4 cd4 19.Bd4 Nf3 20.Bf3 Bd4=) 17...Rd8 18.Qd2 (18.Ne2!? is worth consideration 18...Qa5 19.Rb1=) 18...Qd2+= 19.Bd2 Bd7 20.Be3 Bf8 0–1. Blach,Barbara – Leks,Hanna, Poland–chT U20 2nd div, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nc6)

4.Nc3 Nf6

5.Bc4 e5 6.Nf3 Bd6 7.d3 Nc6 8.Bg5 h6 9.Bf6.

5.Bc4 e6 6.Nf3 Nc6 7.e5 Nd7 8.Bb5 Nd4 9.0-0.

5.Bc4 e6 6.Nf3 Be7 7.0-0 0-0 8.Rb1 Nc6 9.Re1.

5.Bc4 e6 6.Nf3 Be7 7.0-0 0-0 8.e5 Nfd7 9.Qe2 a6 10.a4 Nc6 11.Bd3 g6 12.Bb2 Qc7 13.Ne4 b6 14.Nf6 Bf6 15.ef6 e5 16.Rae1 Re8 17.Ng5 b5 18.f4 c4 19.Be4 ef4 20.Nf7 Qb6? 21.Kh1+- Nf6 22.Bf6 Kf7 23.Bg6! hg6 24.Qe8 Kf6 25.Qf8 Kg5 26.h4! (26.h4 Kh5 27.Qh8 Kg4 28.Qf6 Qd8 29.Qg6 Kh4 30.Rf4 Bg4 31.Qg4) 1–0. Spielmann,Rudolf – Patay,Gyula, Merano (10), 1926.

5.Nf3 e6 6.Rb1 Be7 7.Bc4 0-0 8.0-0 Nc6 9.Re1.

5.g3 Nc6 6.Bg2 e6 7.Nf3 Be7 (7...e5 8.Rb1+=) 8.0-0 0-0 9.d3 (9.e5 Nd5=) 9...b6 10.Ne2 Bb7 11.Bb2 Qc7 12.Nf4 Rfd8 13.Qe2 Nd4 14.Nd4 cd4 15.Rac1 e5 16.Nh5 Ne8 17.f4 g6 18.fe5 gh5 19.Qh5 f6 (19...Bc5-/+) 20.Bh3 (20.Qg4 Kh8 21.e6 Rac8+=) 20...Bc8 (20...Ng7 21.Qh6 Qe5-+ (21...fe5? 22.Be6 Ne6 23.Qe6 Kh8 24.Rf7+-)) 21.e6+= Ng7 (21...Bc5!?+=) 22.Qf7= Kh8 23.Rf6?? (better is 23.Ba3 Re8 24.Rf6 Be6 25.Re6 Ne6 26.Be6+-) 23...Be6?? (better is 23...Qd6 24.e5 Qc5+=) 24.Re6+- (worse is 24.Be6 Rf8 25.Bd4 Qd6 (25...Rf7?! 26.Rf7 Rg8 27.Rcf1+=) 26.Qf8 Rf8 27.Rf8 Bf8+=) 24...Ne6 (24...Bd6 25.Qc7 Bc7 26.Re7+-) 25.Be6 (25.Qe6?! Bg5 26.Re1 Qg7+=) 25...Qd6 26.Bd5 (26.Bf5!? Qh6 27.Qe7 Qe3 28.Kg2 Qe2 29.Kh3 Qh5 30.Qh4 Qh4 31.Kh4 Rd6+-) 26...Qb4 (26...Bf6 27.Ba8 Ra8+-) 27.Qe7! (27.Ba8?! Ra8 28.Rf1 Bg5+-) 27...Qe7 (27...Qe7 28.Bd4) 28.Bd4 Qg7 29.Bg7 Kg7 30.Ba8 Ra8 31.Kf2 Kf6 32.Ke3 Rc8 33.c4 Rc5 34.d4 Ra5 35.Rc2 Ra3 36.Kf4 Rd3 37.e5 Ke7 38.Ke4 Rd1 39.d5 Re1 40.Kf4 Rf1 41.Ke3 Rf5 42.Kd4 Rf1 43.Rc3 Rf2 44.Ra3 a5 45.Rb3 Rd2 46.Ke3 Ra2 47.Rb6 h5 48.Rb7 Kd8 49.d6 Kc8 50.Rg7 a4 51.e6 Ra1 52.Kd4 Re1 53.Kd5 a3 54.Ra7 Re3 55.Kc6 Kb8 56.Ra3! Ra3 57.e7 (57.e7 Rb3 58.d7 Ka8 59.d8Q Ka7 60.Qa5 Kb8 61.e8Q) 1–0. Lauche,Christoph (1780) – Panofen,Ingo (1825), Ruhrgebiet VL2, 2004. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nc3 Nf6)

4.Nf3 Nc6

5.Bb5 Bg4 6.0-0 Qc7 7.h3 Bh5 8.Nc3 a6 9.Nd5 Qd6 10.Be2 (10.Bc6 Qc6 11.Rb1 e6+=) 10...e6 11.Nb6 Rb8 12.d3 Qc7 13.Rb1 Nf6 14.c3 Nd7 15.Nd7 Qd7 16.Be3 b5 17.d4 cd4 18.cd4 Rd8 19.a4 ba4 (19...Bf3 20.Bf3 ba4 21.Qc2+=) 20.Qa4 Bf3 21.gf3 Nd4 22.Qd7 Rd7 23.Rb8 Ke7 24.Bd4 Rd4 25.Rc1 g6 26.Rcc8 a5? (better is 26...f5=) 27.Re8+/- Kf6 28.Rf8 Rf8 29.Rf8 a4 (better is 29...h5!?+/-) 30.Ra8+- Rd2 (30...Ke5 31.Bb5+-) 31.Bb5 Rd1 32.Kg2 Ra1 1–0. Jakivchik,Miroslava – Argentinsky,E, Ilyichevsk op U17, 2000. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.c3 e6 6.d3 Be7 7.Be2 Nf6 8.0-0 0-0 9.e5 Ne8 10.Be3 b6 11.d4 cd4 12.cd4 Bb7 13.Nc3 Nc7 14.Ne1 Qd7 15.f4 Nb4 16.Bf3 Ncd5 17.Nd5 Nd5 18.Qd2 Rac8 19.Nd3 Rc2 20.Qc2 Ne3 21.Qf2 Nf1 22.Bb7 Qb7 23.Rf1=+ Qe4 24.Nc1 Rc8 25.Re1 Qc2 26.Nb3 Bb4 27.Rf1 Qf2 28.Rf2 a5 29.g4 a4 30.Nd2=+ Bc3 31.Nf3 a3 32.Kf1 Bb2 33.Ke2 b5 34.Kd3? b4?? 35.Rc2= Rd8 36.Kc4 Bc3 37.Kb3 f6 38.Re2 Kf7 39.Re4 h5 40.f5 hg4 41.fe6 Ke6 42.Rg4 fe5 43.Ne5 Kf5 44.Rg7 Rd4 45.Nc6 Rd2 46.Rg3 Rb2 47.Ka4 Ke6 48.h4 Kd5-/+ 49.Na7 Ra2 50.Nb5 Kc4 51.Rg4 Kd3 52.Rg3 Kc2 53.Rg2 Bd2 54.Nd4 Kd3 55.Nb3 Rb2 56.h5?? a2 57.Rg1 Rb1 58.Rg3 Be3 (58...Be3 59.Rg2 Rb3 60.Ra2 Kc4-+) 0–1. Ter Akopyan,B (2015) – Bangiev,A (2430), 6th LGA Premium Cup, Nuernberg GER, 2009.

5.c3 e6 6.d4 cd4 7.cd4 Bb4 8.Bd2 Nf6 9.Nc3 a6 10.Qb3 0-0 11.Bd3 Nd4-/+ 12.Nd4 Qd4 13.Qc2? b5?? 14.0-0 Bb7 15.Ne2-/+ Qc5 16.Qc5 Bc5-+ 17.Bg5 Ne4 18.Be3 Be3 19.fe3 Nc5 20.Bc2 e5 21.Bb3 Nb3 (21...Nb3 22.ab3 a5-+) 0–1. chessleon (2005) – jplayer (2110), net–chess.com, 2010.

5.Nc3 e6 6.Rb1 Bd6 7.Bb5 (7.Bb2 Nf6 8.Bb5 Bd7 9.Qe2 Ne5 10.0-0 0-0 11.Bd7 Nf3 12.Qf3=; 7.Qe2 Nd4 8.Nd4 cd4 9.Nb5 Be5 10.Bb2 Ne7 11.c3 dc3 12.Bc3=) 7...Bd7 8.Be2 Bc8 9.0-0 Nf6 10.Bb5 Bd7 11.Qe2 e5 12.Bc4=.

5.Nc3 e6 6.Bb2 a6 7.Rb1 (7.e5 b5 8.Bd3 Bb7 9.0-0 Be7 10.a4 b4 11.Ne2 Nh6 12.Be4=; 7.Be2 Bd6 8.0-0 Nf6 9.Re1 0-0 10.a4 e5 11.Bc4 Nd4 12.h3=; 7.Bd3 Bd6 8.Nb5 Bf8 9.Na3 b5 10.0-0 c4 11.Be2 Nf6 12.e5=) 7...Bd6 8.Nb5 Bf8 9.Na3 b5 10.c4 b4 11.Nc2 Bb7 12.Be2=.

5.Nc3 e6 6.Bb2 Nd4 7.Rb1 Bd7 8.Ba1 b6 9.Nb5 Bb5 10.Bb5 Nb5 11.Rb5 a6 12.Rb1+=; 7.Bc4 a6 8.a4 Bd6 9.0-0 Nf6 10.Rb1 0-0 11.Re1 Qc7 12.h3=; 7.a3 a6 8.Be2 Bd6 9.0-0 Nf6 10.a4 0-0 11.Rb1 Qc7 12.h3=) 7...Bd7 8.Nb5 Nb5 9.Bb5 Bb5 10.ab5 Nf6 11.Qe2 Be7 12.0-0+=.

5.Nc3 e6 6.Bb2 Nf6 7.a3 Bd6 8.Bb5 Bd7 9.Qe2 Ne5 10.0-0 0-0 11.Rfb1 Qc7 12.h3=.

5.Nc3 e6 6.Bb2 Nf6 7.Rb1 Bd6 8.Bb5 Bd7 9.Qe2 Ne5 10.0-0 0-0 11.Bd7 Nf3 12.Qf3=.

5.Nc3 e6 6.Bb2 Nf6 7.Bb5 Bd7 8.0-0 a6 9.Bc6 Bc6 10.Ne5 (10.Re1 b5 11.d3 Be7=) 10...Qc7 (10...Be4 11.Ne4 Ne4 12.d3=+) 11.Nc6= Qc6 12.e5 Nd5 13.Qf3 Be7 14.Ne4 0-0 15.c4 Nb4 16.a3 Nc2 17.Rac1 Nd4 18.Bd4 cd4 19.Rfe1 Rfd8 20.Rb1 Rd7 (20...Qc4?? 21.Rb7 Qc2 22.Re7+-) 21.d3 (21.c5 Rc7=) 21...Ba3=+ 22.Rb3 Bf8 23.Reb1 Rb8 (better 23...Ra7=+) 24.Nf6!+/- gf6 25.Qc6 bc6 26.Rb8 fe5 27.Ra8 Kg7 28.Ra6 c5 29.f3 Kf6 30.Kf2 Rc7 31.Rb8 Bh6 32.Ke2 Bf4 33.g3 Be3 34.Rb5 h5 (better 34...Ke7!?+-) 35.Raa5 Kg6 (35...h4 36.Rc5 Rc5 37.Rc5+-) 36.Rc5 Rb7 (36...Rc5 37.Rc5 f6 38.Ra5+-) 37.Rcb5 (37.Re5 Rb2 38.Kf1 Rf2 39.Kg1 Rf3 40.Kg2 Rf2 41.Kh3 Rd2+=) 37...Rc7 38.Re5 Rb7 (38...h4 39.gh4 Rc8 40.h5 Kf6 41.Re3 de3 42.Ke3+-) 39.Reb5 (39.Rh5?! Rb2 40.Kd1 Rd2 41.Ke1 Rd3+-) 39...Rc7 40.Rh5 Rb7 (40...f5 41.Rh8+-) 41.Rhb5 Rc7 42.h4 f5 (42...Kg7 43.h5+-) 43.f4 Re7 44.Re5 Kf6 45.Re3 (better 45.Ra6!? Kf7+-) 45...de3 46.Ke3 Rg7 47.Kf3 Rd7 48.Ra3 Rb7 49.c5 Rc7 (49...Rb1 50.c6+-) 50.Rc3 Rc6 51.d4 Ke7 52.g4 fg4 53.Kg4 Kf6 (53...Rc8 54.c6 Kd6 55.Kg5+-) 54.h5 Rc8 55.c6 Rg8 56.Kf3 Ke7 57.c7 Rc8 58.Ke4 Kd6 (58...Kf6 59.h6 Kg6+-) 59.h6 Kd7 60.h7 Ke7 61.Ke5 Kd7 62.h8Q! Rh8 (62...Rh8 63.c8R Decoy) 63.c8Q! Rc8 64.Rc8 Kc8 65.Ke6 Kd8 66.Kf7 (better 66.d5+-) 66...Kd7 67.f5 Kd6 68.f6 Kd5 69.Kg7 Kd4 70.f7 Ke5 71.f8Q (71.f8Q Kd4 72.Qd6 Ke3 73.Kf6 Kf3 74.Ke5 Ke3 75.Qa3 Kf2 76.Ke4 Kg2 77.Qf3 Kg1 78.Qe2 Kh1 79.Kf3 Kg1 80.Qg2) 1-0. Lana Rodriguez,D (2365) - Novikov,E (2275), Titled Tuesday 2nd June, 2020. (=1.e4 c5 2.Nf3 d6 3.b4 Nc6 4.bc5 dc5)

5.Nc3 e6 6.Bb2 Nf6 7.Bb5 Bd7 8.0-0 Bd6 9.Qe2 e5 10.Bc6 Bc6 11.Nb5 Bb5 12.Qb5=.

5.Nc3 e6 6.Bb2 Nf6 7.e5 Ng4 8.Qe2 Be7 9.Qe4 f5 10.ef6 Nf6 11.Qc4 a6 12.Ne4=.

5.Nc3 e6 6.e5 A) 6...Nd4 7.Rb1 (7.Bc4 Bd7 8.0-0 Bc6 9.Be2 Ne7 10.Re1 Ne2 11.Qe2 Nf5 12.Bb2=; 7.Nb5 Nf5 8.Be2 Be7 9.Rb1 Ngh6 10.0-0 0-0 11.Nc3 b6 12.a4=; 7.Bb2 Ne7 8.Nb5 Nec6 9.Bd3 Bd7 10.Rb1 Nb5 11.Bb5 Be7 12.0-0=) 7...Ne7 8.Nb5 Nf3 9.Qf3 Nc6 10.Qc3 a6 11.Nd6 Bd6 12.ed6+=; B) 6...Nge7 7.Bd3 (7.Bb5 Bd7 8.0-0 Qc7 9.Re1 Ng6 10.Bb2 Nce5 11.Ne5 Ne5 12.Rb1+=; 7.Bb2 Ng6 8.Ne4 Be7 9.Bb5 Qb6 10.c4 0-0 11.Rb1 a6 12.Ba4+=; 7.Ne4 Nf5 8.Bb5 Bd7 9.Rb1 Nfd4 10.Nd4 cd4 11.Nd6 Bd6 12.ed6=) 7...Nd5 8.0-0 Be7 9.Bb2 0-0 10.Qe1 Ndb4 11.Be4 Nd4 12.Qd1=; C) 6...Qc7 7.Qe2 (7.Nb5 Qd8 8.Bb2 a6 9.Nc3 b5 10.a4 b4 11.Ne4 Bb7 12.Be2=) 7...a6 8.Bb2 Nd4 9.Nd4 cd4 10.Nd1 Bc5 11.c3 dc3 12.Bc3=; D) 6...a6 7.Bb2 (7.d3 Nd4 8.Be3 Ne7 9.Be2 Qc7 10.0-0 Nec6 11.Rb1 Ne2 12.Qe2=; 7.Ne2 b6 8.Rb1 Bb7 9.Bb2 Be7 10.Nf4 Nh6 11.Be2 g5 12.Nh5+=) 7...b5 8.Bd3 Bb7 9.0-0 Be7 10.a4 b4 11.Ne2 Nh6 12.Be4=.

5.Bc4 b6 6.0-0+= Bb7 7.Bb2 Nf6 8.e5 Ng4 (8...Nd5 9.e6 fe6 10.Ng5+-) 9.h3 (9.Bf7!? Kf7 10.Ng5 Kg8 11.Qg4+-) 9...Nh6+- 10.e6 f6 11.Re1 g5? (better 11...g6+-) 12.Ng5!+- Nd4?? (12...fg5 13.Qh5) 13.Qh5 (13.Qh5 Nf7 14.Qf7) 1–0. Karl – Corpus, internet private, 2018. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 e5 6.d3 Bd6 7.Ng5 Nh6 8.0-0 0-0 9.h3 Qf6 10.Nc3 Qg6 11.Rb1 b6 12.h4 Bg4 13.f3 Bd7 14.Nb5 Na5 15.h5 Qf6 16.Bd5 Rab8 17.Qe1 Bb5 18.Rb5 a6 19.Rb1 c4 20.dc4 Rbc8 21.Nh3 Bc5 22.Kh1 Qd6 23.f4 Kh8 24.Qg3 Nc6 25.f5 Ng8+= 26.h6 gh6 27.Qh4 Qf6 28.Qf6 Nf6 29.Bh6 Rg8 30.Ng5 Nd8 31.Nf7 Nf7 32.Bf7 Ne4 33.Kh2 Rc6 34.Bc1 Rg4 35.Rb3 Rf6 36.Be6 Ng5 37.Bd5 Kg7 38.g3 Rd6 39.a4 Kf6 40.Kg2 h6 41.Rd3 Rd7 42.Rh1 Rh7 43.Rh5 Kf5 44.Bf3+/- Rc4 45.Bg5 hg5 46.Rh7 e4 47.Be2 Rc2 48.Kf1 Re2 49.Rd5 Kg6 50.Ke2 Kh7 51.Rg5 Bg1 52.Re5+- 1–0. Offenbach/Holaus,V (2285) – Thoma,Theo (2100), remoteschach.de, 2007.

5.Bc4 Nf6 6.Nc3 Bg4 (6...a6 7.h3=) 7.0-0 (7.e5 Bf3 8.Qf3 Nd4 9.Qb7 Qc8 (9...Nc2?? 10.Kd1 Nd4 11.ef6+-) 10.Qc8 Rc8+/-) 7...e6 (7...a6 8.Bd5 Nd5 9.Nd5+= (9.ed5? Nd4-+)) 8.Rb1 (8.Bb5 Qc8=) 8...Rb8 (8...a6 9.Be2 (9.Rb7? Na5 10.Ba6 Ra6-+) 9...Qb8 10.Nh4+=) 9.Re1 (9.Bb5 Nd7 10.Bc6 bc6=) 9...Be7 (9...a6 10.Be2+=) 10.h3 (10.Bb5 Bf3 11.Bc6 bc6 12.Qf3 Rb1 13.Nb1 0-0=) 10...Bh5 (better is 10...Bf3!? 11.Qf3 a6+=) 11.g4 Bg6 12.e5 (12.d3!? h5 13.g5=) 12...Nd7 13.d3 (13.Bb5!?+=) 13...a6-/+ 14.a4 h5 15.Bf4 (15.Na2 Nb6 16.Qe2 hg4 17.hg4 Nc4 18.dc4 Qa5-+) 15...hg4 16.hg4 Nb6 (16...Qa5 17.Bd5 Nd4 18.Ne2-+) 17.Ba2 (17.Bb3 Rh7+=) 17...Nd4 (17...c4 18.Be3 cd3 19.Bb6 dc2 20.Qc2 Bc2 21.Bd8 Nd8-/+ (worse is 21...Rd8 22.Rb7 Rh3 23.Kg2 Rf3 24.Kf3-/+)) 18.a5 (better is 18.Bb3!?-/+) 18...Nc8 19.Nd4 Qd4 (better is 19...cd4!? 20.Ne2 Qa5-+) 20.Ne4 ½–½. Held,Bernd – Freialdenhoven,Manfred, Duesseldorf–ch, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 Nf6 6.e5 Nd5 7.0-0 e6 8.c3 a6 9.d4 b5 10.Bd3 cd4 11.cd4 Be7 12.a3 Bb7 13.Nbd2 0-0 14.Ne4 b4 (14...Qb6 15.Bc2=) 15.Nfg5 (15.Nc5!? Bc5 16.dc5+=) 15...h6+= 16.Qh5 (better is 16.Nf3!?+=) 16...Nd4-/+ (16...hg5?? 17.Ng5 Nf6 18.ef6 Re8 19.Qf7 Kh8 20.fg7; 16...Bg5 17.Bg5 Qc7 18.Nf6 Nf6 19.ef6+-) 17.Nh7 (better is 17.Nh3-/+) 17...Nf5?? (better is 17...Nb3 18.Bh6 gh6 (18...ba3? 19.Bg7 Kg7 20.Nf8 Qf8 21.Qg4 Kh8 22.Qh3 Kg7 23.Rab1+-) 19.Qh6 f5 20.ef6 Rf6 21.Nhf6 Bf6+-) 18.Nf8+= Bf8 19.Rd1 a5 (19...Qb8!?=) 20.ab4+= ab4 21.Ra8 Qa8 22.Qg4 Kh8 23.Bc2 (better is 23.Kh1!?+/-) 23...Qa2= 24.Qe2 Ba6 25.Qd2 b3 26.Bd3 Bd3 (26...Bb4 27.Qb2 Bb7 28.Bb1 Qb2 29.Bb2+=) 27.Qd3+= b2 28.Bd2 Bb4 29.Qb1 Qc4? (better is 29...Qb1 30.Rb1 Ba3+=) 30.Bb4+- Qb4 31.Rd2 Nf4 32.Rb2 Qd4 33.Rb8 Kh7 34.g4 Nh3? 35.Kg2 Nf4+/- 36.Kh1 Qd5?? 37.f3 Nh3 38.gf5 ef5 39.Nf6 gf6 40.Qf5 (40.Qf5 Kg7 41.ef6) 1–0. Chulivska,Vita (2210) – Chumak,Ninel (1930), UKR–ch U16 Girls, 2004. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 Nf6 6.e5 Nd5 7.0-0 Bg4 8.h3 Bh5 9.e6 fe6 10.Bb2 Qb6 11.Bc3 0-0-0 12.Qe2 (12.Be2 Bf3 (worse 12...Nc3 13.Nc3 Qc7 14.Ng5+=) 13.Bf3 Nd4= (worse 13...Nc3 14.Nc3 Qc7 15.Rb1+/-)) 12...Nd4 (12...Nc3!? 13.dc3 Bf3 14.Be6 Kb8 15.Qf3 g6=) 13.Bd4= cd4 14.Bd5 (14.Re1!?=) 14...ed5-/+ 15.Qd3 Bf3 16.Qf3 e5 17.Qf5 Kb8 18.d3 Bd6 19.Nd2 Qc7 20.Nf3 g6 21.Qe6 (better 21.Qg5-/+) 21...Qc2 (better 21...Rhe8!? 22.Qd5 e4 23.de4 Bh2 24.Nh2 Rd5 25.ed5 Qc2-+) 22.Qd5=+ (22.Ne5 Rhe8 23.Nd7 Kc7+=) 22...Bc7 23.Qe4 Rhf8 (better 23...Qc6!? 24.Qc6 bc6=) 24.Rab1 b6 25.Ne5 Be5 26.Qe5 Qc7 27.Qc7 (27.Qb5 Rde8+=) 27...Kc7= 28.Rfc1 Kb7 29.Rb4 Rfe8 30.a4 a5 31.Rb5 Re2 32.Rcb1 Rd6 33.Ra5 Rd2 34.Rab5 Rd3 35.a5 Ra3 36.Rb6 Rb6 37.ab6 d3 38.Kf1 Rc3 (38...Ra2 39.g3+=) 39.Ke1+/- Ra3 40.Kd2 Ra2 41.Ke3 Ra3 42.Rd1 Kb6 43.Rd3 Ra7 44.Rc3 Rf7 45.f4 Kb5 46.Kf3 g5 47.g3 h6 (47...Kb4 48.Rc8+-) 48.Kg4 gf4 49.gf4 Kb4 (49...Rf6 50.f5+-) 50.Rc8 (50.Rc6 Rg7 51.Kf5 Rf7 52.Rf6 Rh7+-) 50...Kb5 51.Rc1 (51.f5 Kb6+-) 51...Kb6 52.f5 Rg7 53.Kf4 Rg2 54.Rc3 Rf2 (54...Rg8 55.f6 Kb5 56.Kf5 Rg5 57.Ke6+-) 55.Ke5 (55.Rf3 Ra2 56.f6 Ra8+-) 55...h5 56.f6 h4 (56...Kb5 57.Rc8+-) 57.Ke6 Re2 58.Kd7 Rd2 (58...Rf2 59.Ke7 Re2 60.Kf8+-) 59.Ke7 Re2 60.Kf8 Rg2 61.Rc4 Rg3 62.Rh4 1-0. Mukhina,Jana (2065) - Lesbekova,Asel (1920), Women's Speed Chess Q2, 2020. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 Bg4 6.Bf7!+/- Kf7 7.Ng5 Ke8 8.Qg4 Nf6 9.Qe6 Qd6 10.Qd6 (10.Qf7!? Kd7 11.Qb3 Rb8+-) 10...ed6+/- 11.0-0 (11.Nc3 Nd4 12.Kd1 h6+/-) 11...h6 (11...Nd4 12.Nc3+=) 12.Ne6 Kd7 13.Nf8 Rhf8 14.d3 Nd4 15.Na3 b5 16.Bb2 Ne2 17.Kh1 b4 18.Nc4 Ng4 (18...Nf4 19.a3+/-) 19.f3 Nf6 20.Rfe1 Nf4 21.Nd6! Kd6 22.e5 Kd7 23.ef6 gf6 24.Re4 (24.Bc1 Nd5 25.Bh6 Rh8+-) 24...Nd5+/- 25.Rae1 Rae8 26.Kg1 f5 27.Re5 Re5 28.Re5 Ne7? (better is 28...Kd6!?+/-) 29.Rc5+- Kd6 30.Rb5 (30.Rc4 Nd5+-) 30...Nc6? (30...Rc8 31.Rb4 Rc2 32.Ba3 Ra2 33.Rd4 Ke6 34.Rd6 Kf7 35.Bc5+-) 31.Kf2 f4? 32.Rh5 a5 33.Rh6 Kd5 34.Rh5 Kd6 35.g4 fg3 36.hg3 a4 37.a3 b3 38.cb3 ab3 39.Rb5 Rh8 40.Bh8 Ke6 41.Rb3 1–0. Brown,Paul (2125) – Wilson,Paul, Commonwealth–ch, 1999. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 Bg4 6.Bf7!+/- Kf7 7.Ng5 Ke8 8.Qg4 Nh6 9.Qg3 Nd4 10.Na3 Qd7 11.c3 Nb5? (11...Nc6 12.Nh7! Ng4 13.Nf8 Rf8 14.f4+-) 12.0-0 (better is 12.Nb5!? Qb5 13.Ne6 Rc8 14.Nc7 Rc7 15.Qc7 c4+-) 12...a6 (12...Na3 13.Ba3 c4 14.Nh7+-) 13.Nh7! Qg4 (13...Rh7 14.Qg6) 14.Qg4 Ng4 15.Nf8 Nh2? (15...Kf8 16.h3 Nf6+-) 16.Ng6 Nf1 (16...Rh6 17.Rd1 Nf3 18.gf3 Rg6 19.Kf1 Na3 20.Ba3+-) 17.Nh8 Nd2 (17...Na3 18.Kf1 (worse is 18.Ba3 Nd2 19.Bc5 Ne4+-) 18...Nc4 19.d4+-) 18.Bd2 (18.Nb5 Kd7 19.Bd2 Rh8+-) 18...Kd7 (18...Na3 19.Ng6+-) 19.Ng6 (better is 19.Nb5 Rh8 20.Na3 Rh4+-) 19...Na3 20.Rd1 Re8 (20...Nb5+-) 21.Bc1 Ke6 22.Ba3 c4 1–0. Dunne,Paul (1875) – Lewis,Martin, Southend op–A, 2006. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 g6 6.Bb2 Nf6 7.h3 (7.Ng5 e6 8.Qf3 Bg7+=) 7...Bg7= 8.0-0 0-0 9.Nc3 (9.Qe2 Qb6 10.Bf6 Bf6=) 9...a6 (9...Ne4 10.Ne4 Bb2 11.Rb1+=) 10.a4 (10.e5 Ne8=) 10...Ne4+= 11.Rb1 Nf6 (11...Nc3!? 12.Bc3 Bc3 13.dc3 Qa5-/+) 12.Re1 Bf5 13.Ba3 (13.g4 Bc8+=) 13...b6-/+ 14.d3 Rc8 (better is 14...Na5!?-/+) 15.Ba6= Rc7 16.Rb6 Nd7 17.Rb3 Na5 (better is 17...Ra7 18.Bc4 Na5=) 18.Rb5?? (better is 18.Nd5 Nb3 19.cb3+/-) 18...Bc3-+ 19.Re3 (19.Bb2 Be1 20.Qe1 Nc6-+) 19...Ra7 (better is 19...Qa8 20.d4 cd4 21.Nd4 Bd4 22.Qd4 Qa6 23.Rf5-+) 20.Bb7? (20.d4 cd4 21.Be7-+) 20...Nb7 21.Rb3 (21.d4 Ba5 22.dc5 Ne5-+) 21...Bg7 22.Qe2 (22.Bb2 Bh6 23.Re1 Re8-+) 22...Na5 23.Rb1 Re8 (23...Nc6 24.Bb2-+) 24.Nh4 (24.g4 Be6 25.Re6 fe6 26.Qe6 Kh8-+) 24...Be6 25.Nf3 (25.Re6 fe6 26.Qe6 Kh8-+) 25...Qc7 (25...Bd5 26.Qd1-+) 26.c4 (26.Re6 fe6 27.Qe6 Kh8-+) 26...Nf6 (26...Nc6 27.Qc2-+) 27.Qd1 (27.Re6 fe6 28.Qe6 Kh8-+) 27...Nb7 28.Bb2 Nd6 29.Qc2 (29.Ne5 Rea8-+) 29...Nf5 30.Ree1 Nd7 (30...Bd7 31.Ra1-+) 31.Bc1 (31.Ng5 Bb2 32.Ne6 fe6 33.Qb2 Ra4-+) 31...Nd4 32.Nd4 Bd4 33.Re4 Bf5 34.Bf4 Qc6 35.Re2 Qa4 36.Qd2 Qa5 37.Qc2 Nf6 38.Bd2 Qa2 39.Qc1 Bd3 40.Re1 Qb1 41.Qb1 Bb1 42.Rb1 Ra1 43.Ra1 Ba1 44.Be3 Bd4 0–1. Jangle,Hemang – Garbe,Kevin, Fremont Weibel Quads, 2005. (=1.e4 c5 2.b4 d6 3.Nf3 Nc6 4.bc5 dc5)

5.Bb5 Bd7

6.0-0 a6 7.Bc6 Bc6 8.d3 e6 9.Bb2 Nf6 10.Ne5 Be7 (10...Rc8 11.Nd2+=) 11.Nc6+/- bc6 12.Nd2 0-0 13.Nc4 Nd7 14.Rb1 Rb8 15.Qd2 Bf6 16.Bf6 Nf6 17.Qa5 Qd4 (better is 17...Nd7+/-) 18.h3?? (better is 18.Rb8 Rb8 19.Qa6+-) 18...Ne4 (18...Rb1 19.Rb1 Ne4 20.Rf1= (worse is 20.de4 Qc4 21.Re1 Qb4 22.Qb4 cb4-/+)) 19.Rb8+= Rb8 20.Qc7 (20.Qa6 Nc3=) 20...Rf8= 21.Qc6 Ng3 22.Rb1 Ne2 23.Kf1 Nf4 (23...Nc3 24.Re1 Na2 25.Qa6=) 24.Qe4 Nd5 25.Qd4 cd4 26.a3 Rd8 27.Rb7 Kf8 (27...Ra8 28.h4=) 28.Ke2 (28.Ra7 Nc3+=) 28...Ke8 (28...Nc3!? 29.Kf3 Rd5=) 29.Kf3 Rd7 (29...Nc3 30.Ra7+/-) 30.Rd7+/- Kd7 31.Ke4 f6 32.Kd4 Nf4 33.Ne3 e5 (33...Ne2!? 34.Kc5 Kc7+-) 34.Kc5+- Ne6 35.Kb6 Nc7 36.c4 Ne6 37.Nd5 (37.c5 Kc8+-) 37...Kd6 38.Nb4 Nc5 39.Na6 Nd3 40.c5 1–0. Bosi,Clint (2045) – Melino,Gianluca (1635), PV Province–ch, 2007. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Bb5 Bd7)

6.0-0 a6 7.Be2 e6 8.c4 (8.Bb2 Nf6=) 8...Be7 9.Nc3 Nf6 10.Bb2 0-0 11.d4 cd4 12.Nd4 Nd4 13.Qd4 Bc6 14.Qe3 Qc7 15.Rad1 Rad8 16.Bd3 Ng4 (16...Bd6!? 17.h3 b6+=) 17.Qh3= Ne5 18.Qg3 Bd6 19.c5 Bc5 20.Nd5 Qd7?? (better is 20...Nf3! 21.Qf3 ed5 22.ed5 Rd5 (22...Bd5?? 23.Qf5 f6 24.Qh7 Kf7 25.Bg6 Ke6 26.Qh3 Kd6 27.Rd5 Kd5 28.Qf3 Kd6 29.Rd1 Ke7 30.Qe2 Qe5 31.Be5 Rd1 32.Qd1 fe5 33.Qd5 Bf2 34.Kh1+-) 23.Bh7 Kh7 24.Rd5 Bd5 25.Qd5 Rd8=) 21.Nf6+- (21.Nf6 Kh8 22.Nd7 Bd7 23.Qe5 Bf2 24.Rf2+-) 1–0. Brown,Paul (2125) – Faisal,Farooq, Commonwealth–ch, 1999. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Bb5 Bd7)

6.0-0 Nf6 7.Re1 e6 8.Ba3 (8.Nc3 Nd4 9.Rb1 Qc7+=) 8...Qc7 (8...Be7 9.d3=) 9.c3 (9.d3 a6 10.Bc6 Qc6= (worse is 10...bc6 11.Nbd2+/-)) 9...a6 10.Bc6 (10.Bf1 e5=) 10...Bc6 (10...bc6 Worse is 11.d4+/-) 11.e5 Ng4 (11...Nd5 12.d4+=) 12.h3 (12.d4!?=) 12...Bf3+= 13.Qf3 Ne5 14.Qe4 Ng6 15.d4 0-0-0 16.Nd2 Qf4 17.Rab1 Qe4 18.Ne4 cd4 19.Bf8 Rhf8 20.cd4 Rd7 21.Rec1 Rc7 22.Rc7 Kc7 23.Nc5 Rb8 24.Rc1 Kd8 25.Rb1 Kc7 26.Rc1 Twofold repetition 26...Kd6 27.Rb1 Nf4 28.Na6= Ne2 29.Kh2 Ra8 30.Rb6 Ke7 31.Rb7 Kf6 32.Rb2 ½–½. Casanova,Lisandro – Russo,Osvaldo, Buenos Aires tt, 2001. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.0-0 h6 7.a4 a6 8.Bc6 Bc6 9.d3 Qc7 10.Nbd2 e5 11.Nc4 Nf6? (11...Bd6 12.Bb2 f6 13.Nh4+/-) 12.Bb2 (12.Nfe5 Rd8+-) 12...Bd6 (12...Ba4 13.Ra4 b5 14.Be5+-) 13.Nh4 (better 13.Nd6 Qd6 14.Be5+-) 13...0-0? (better 13...g6+/-) 14.Nf5+- (14.Nd6?! Qd6 15.f4 Nd7+/-) 14...Ne8 (14...Be7 15.Be5 (15.Ne7?! Qe7 16.Ne5 Bd7+-) 15...Qd7 16.Nb6+-) 15.Qg4 (15.Ncd6 Nd6 16.Be5 Rfd8+-) 15...g6?? (better 15...f6 16.Nh6 Kh7+-) 16.Nh6 (better 16.Ncd6 Nd6 17.Be5 Rfd8 18.Nd6 Rd6+-) 16...Kg7 (16...Kh7 17.Qh3 Kg7+-) 17.Nd6 (better 17.Nf5 Kh7 18.Qh3 Kg8 19.Nfd6 f6 20.Qe6 Kh7+-) 17...Nd6 (17...f6 18.Nhf5 Kh7 19.Qh4 Kg8 20.Ne8 Be8 21.Qg3+-) 18.Be5 Kh6 (18...f6 19.Bd6 Qd7 20.Nf5 Kf7 21.Bf8 Rf8+-) 19.Qh4 1-0. marekt - 19larry, ChessWorld.net, 2022. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.Nc3 g6 7.Rb1 Bg7+= 8.0-0 a6 9.Be2+=.

6.Nc3 g6 7.Rb1 Bg7+= 8.0-0 Nf6 9.Ba3!?+/-.

6.Nc3 g6 7.Rb1 Bg7+= 8.0-0 Nf6 9.Bc4 0-0= 10.d3 (worse 10.Rb7 Na5 11.Rd7 Nd7-/+) 10...e6 (10...Ne8 11.Bb2=) 11.Bf4 (11.Rb7 Na5 12.Rb1 Rb8+=) 11...b6 (11...Nh5!? 12.Bg5 Qa5=) 12.Bd6+/- Re8 13.Nb5 Rc8 14.Ne5?? (better 14.Bg3+/-) 14...a6=+ 15.Nc6?? (15.Nc3 b5 A) 16.Nd7? Nd7 (worse 16...Qd7 17.e5-/+) 17.Nb5 ab5 18.Bb5 e5-+; B) 16.Bb3-/+) 15...Bc6 (better 15...Rc6!? 16.Nc7 Rc7 17.Bc7 Qc7 18.Ba6-+) 16.Na7 Qd6 17.Nc8 Rc8 18.Rb6 a5 (18...Nd7!? 19.Ra6 Qc7 20.Qd2-+) 19.Bb5-/+ Nd7 20.Rc6 Rc6 21.Bc6 Qc6 22.Qd2 a4 (22...Qb5 23.c3-/+) 23.Qa5 h5 (23...c4!?-/+) 24.Qd8=+ Kh7 25.Qe8 (25.Qe7 c4 26.d4 Nf8=+ (26...Bd4 27.Rd1 Bf2 28.Kf2=)) 25...f6 (25...Ne5 26.Qe7-/+) 26.Qf7 (better 26.Qe7=+) 26...f5?? (better 26...Ne5 27.Qa7 Qb5=+) 27.ef5+/- ef5 (27...gf5!? 28.Qh5 Kg8 29.Qe8 Bf8+/-) 28.Re1+- Qb5 (better 28...h4 29.Re6 Qb7 30.Qg6 Kg8+-) 29.h3?? (better 29.g3 Qb2 30.Re7+- (30.Qd7?! Qa2 31.Qe8 Qc2+-)) 29...Nf6?? (better 29...Kh6 30.Re7 Qb2+=) 30.Re7+- Ne8 31.Re8 (better 31.Re6 Qb1 32.Kh2 Qb8 33.g3+-) 31...Kh6 (31...Qb1 32.Kh2 Qb2 33.Re6 Qb8 34.g3+-) 32.Re7 (better 32.Re6 Qb1 33.Kh2 Qb8 34.g3+-) 32...Qb1 (32...Qb2 33.g3 Qf6 34.Qf6 Bf6 35.Ra7+-) 33.Kh2 Kg5 (33...Qb8 34.g3 Qf8+-) 34.Qg7 (34.h4 Kh4 35.Qg6 Qg1 36.Kg1 Be5 37.Re5 a3 38.Qg3) 34...Kf4 (34...Qb4 35.g3 h4 36.f4 Qf4 37.gf4 Kf4 38.Qg6 c4 39.Kg2 cd3 40.Qh6) 35.Re3 (35.Qh6 g5 36.Qd6) 35...h4 (35...Qh1 36.Kh1 Kg5 37.Rg3 Kh4 38.Qg6 a3 39.Qf6) 36.Qe5 (36.Qe5 Kg5 37.f4 Kh5 38.Qh8; 36.Qh6 g5 37.Qd6) 1-0. skulas (2545) - Lance5500 (2575), lichess.org, 2016. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.Nc3 g6 7.Rb1 Bg7+= 8.0-0 Nf6 9.e5 Ng4 10.e6 (10.Ba3 Nce5 11.Bc5 b6 12.Ne5 A) worse 12...Be5 13.Qg4 Bb5 14.Be7 Qe7 15.Nb5+/- (15.Rb5?! Bc3 16.dc3 0-0+=); B) 12...Ne5=) 10...Be6=+ 11.Ng5 (11.Bb2 Qc7=+) 11...Bd7 (11...Qc7 12.Bc6 bc6 13.g3-/+) 12.Bc6 bc6 13.Nce4 c4 (13...Rb8 14.Rb8 Qb8 15.Nf3=+) 14.Qe2 0-0 15.Qc4 Qc7 16.Ng3 h6 17.Nf3 Be6 18.Qc5 (18.Qa4!?=+) 18...Ba2-/+ 19.Rb4 Be6 (19...Nf6 20.Ne5-/+) 20.Re1 Nf6 21.Bb2 a5 (better 21...Qd6 22.Qa5 Bd5-/+) 22.Rb6?? Exerts pressure on the isolated pawn (better 22.Ra4=+) 22...Nd7-+ 23.Rc6 Qb7 (23...Nc5?! 24.Rc7 Bb2 25.Rc5-+) 24.Bg7 (24.Qe7 Qc6 25.Bg7-+) 24...Nc5 (24...Kg7 25.Qc3 Nf6 26.Nd4+/-) 25.Rc5 (25.Bf8 Qc6 (25...Rf8?! 26.Rc5 a4 27.Nd4-+) 26.Bh6 Bd5-+) 25...Kg7 26.h4 (26.Nd4 Ra6 27.Rce5 Rc8-+) 26...Rfc8 27.Rce5 a4 (27...Rc2 28.Nd4 Rd2 29.Ne6 fe6 30.Re6-+) 28.h5 g5 (better 28...a3 29.hg6 Kg6 30.c3-+) 29.d4 (29.Nd4 a3 30.Ne6 fe6-+) 29...a3 (29...Rc2 30.d5 Bd5 31.Re7-+) 30.d5 Bd5 31.Re7 (31.Nf5 Kf8 32.Ne7 Rd8 33.Nd5 Rd5-+) 31...Rc7 32.Nf5 Kf6 (32...Kh7 33.R7e3 a2 34.Ra1 Bf3 35.gf3 Rc2 36.Re7-+) 33.Rc7 Qc7 (33...Kf5?! 34.Rb7 Bb7 35.Nd4 Kg4 36.Ra1-+) 34.Ne3 Be6 35.Nd4 (35.c4 a2 36.Nc2 Qb6-+) 35...a2 36.Ra1 Qc3 (36...Qc3 37.Ra2 Ra2-+) 0-1. Shirazi,K (2355) - Bodnaruk,A (2425), Speed Chess Super Swiss, 2020. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.Bc6 Bc6= 7.0-0 (7.d3!?=) 7...Be4=+ 8.c3 (8.d3!? Bf5 9.Na3=+) 8...Nf6 9.d4 Bf3 (9...cd4 10.Nd4 Qa5 11.Re1-/+) 10.Qf3 Qc7 (10...Qd5 11.Qd1-/+) 11.dc5 e6 (11...Qc5?! 12.Qb7 Qd5 13.Qa6=) 12.Be3 Rc8 13.a4 (13.Nd2 Bc5 14.Bc5 Qc5 15.Qb7 Qc3-/+) 13...Nd5 (13...Qc6 14.Qg3-/+) 14.Re1 (14.Bd4 Bc5 15.Bg7 Rg8-/+) 14...Ne3 15.Re3 Bc5 16.Rd3 Bd6 17.Na3 (17.h3 0-0-/+) 17...Bh2-+ 18.Kh1 Be5 19.Nb5 Qb6 (19...Qc6 20.Na7 Qf3 21.Rf3-+) 20.Re1 (better 20.Rd7 0-0 21.Rb7-+) 20...Bf6 (better 20...Bc7-+) 21.Nd6= Ke7 22.Nc8 Rc8 23.Qd5 (23.Red1 Rc7=) 23...Qc6 (23...Bc3 24.Qd7 Kf6 25.Rf3 Kg5 26.Qf7+-; 23...Rc3? 24.Qd7 Kf8 25.Rc3 Bc3 26.Rc1+-) 24.Qc6 (24.Qb3 A) 24...Bc3? 25.Rc1 Qe4 26.Rcc3 Qe1 27.Kh2 Qe5 28.g3 Rc3 29.Rc3+- (worse 29.Qc3 Qc3 30.Rc3 Kd7+-); B) 24...b6=+) 24...Rc6-/+ 25.Red1 Rc7 (25...Rc3?! 26.Rd7 Ke8 27.Rb7=) 26.c4 b6 27.f4 (27.g4 h6-/+) 27...h5 (worse 27...Rc4 28.Rd7 Ke8 29.Ra7=) 28.Kh2 g6 (28...g5 29.fg5 Bg5 30.g3-/+) 29.Kh3 Kf8 30.Rd7 (30.Rc1 Rc5-/+) 30...Rc4 31.Ra7 Rf4 32.Rb7 (32.Rdd7 Be5 33.g3 Rf2-+) 32...Ra4 (32...g5 33.Rdd7 Be5 34.Kh2-+) 33.Rdd7 Ra3 (33...Be5 34.Rf7 Kg8=+) 34.g3-/+ Be5 35.Rf7 Ke8 36.Rfe7 (36.Kh4=+) 36...Kf8 (36...Kd8!? 37.Re6 Rg3 38.Kh2 Rg5 39.Kh1 h4=) 37.Re6 (37.Rf7!? Kg8 38.Rfe7 Rg3 39.Kh2 Rg4 40.Kh3=) 37...Rg3=+ (37...Bg3 38.Rf6 Ke8 39.Rg6 Bc7 40.Kh4=) 38.Kh2 Re3 39.Kg2 Rg3 (39...Bd4 40.Rg6 h4 41.Rd6 h3 42.Kf1=) 40.Kf2 (40.Kh2 Rg5 41.Kh3 b5=+) 40...Rg5=+ 41.Rc6 (41.Kf3 Bc3=) 41...Bd4 (41...Rf5 42.Kg2 Rf7 43.Rbb6-/+) 42.Ke2 (42.Kf3 Re5 43.Rg6 Re3 44.Kf4 Re7 45.Rgb6 h4=) 42...Re5 43.Kd3 Bc5 44.Rg6 Rd5 (44...Re3 45.Kc4 Re4 46.Kd5=) 45.Ke4 Rd4 (better 45...Rd6!? 46.Rd6 Bd6 47.Rb6 Bg3=) 46.Ke5+- h4?? (46...Rd1 47.Rh6 Re1 48.Kd5+-) 47.Rc6 (better 47.Rb8 Kf7 48.Rbg8+-) 47...h3?? (better 47...Rd8+-) 48.Rc8 (48.Rc8 Rd8 49.Rd8) 1–0. Cirovic,Zeljko – Toutaoui,Khaled, FICGS, 2010. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Bb5 Bd7)

6.0-0 e6

7.c3 Nf6 8.Re1 a6 9.Ba4 c4 10.Bc2 (10.e5 Nd5=) 10...e5 (10...Bc5 11.Ba3 Qb6 12.Bc5 Qc5 13.e5=) 11.d4 cd3 12.Qd3 h6 13.Nbd2 Bc5 (13...Qc7 14.Nc4 Rd8 15.Qe2=) 14.h3 0-0 15.Nf1 (15.Nc4 Qe7 16.Ne3 Be3 17.Be3 Be6=) 15...Qc7 16.Ne3 Be3 17.Qe3 Rac8 18.Bb3 Na5 19.Ba3 Rfe8 20.Rac1 Be6 21.Nd2 Nc4 22.Nc4 Bc4 23.Bb2 Red8 24.Red1 b5 25.Qf3 (25.Ra1 Qc6-/+) 25...Qc6 26.Re1 Rd2 27.Ba1 Rcd8 28.g4 (better 28.Rcd1-+) 28...R8d3 29.Qf5? (29.Qg2-+) 29...Rh3 30.g5 (30.Kg2 Rh4 31.Rcd1-+) 30...Rh5 31.Qf3 Rg5 32.Kh1 Ng4 33.Rc2 Nf2 34.Kh2 Ng4 35.Kh1 Rd3 (35...Rh5 36.Kg1 Qb6 37.Re3 Rd1 38.Kg2 Ne3 39.Kg3 Qg6 40.Qg4 Qg4 41.Kf2 Qf4) 36.Qg2-+ Qg6 (36...Rh5 37.Kg1 Qb6 38.Rf2 Nf2 39.Re2 Ne4 40.Rf2 Nf2 41.Qa8 Kh7 42.Kf1 Rd1 43.Kg2 Bf1 44.Kf3 Rh3) 37.Rg1 Qh5 (37...Rh5 38.Qh2 Qe4 39.Rcg2 Rh2) 38.Qh2 Nh2 39.Rh2 (39.Rg5 Rd1 40.Rg1 Qh3 41.Rh2 Rg1 42.Kg1 Qf1) 39...Qf3 40.Rgg2 Qf1 41.Rg1 Rg1 (41...Qg1) 0–1. Rozas Lazcano,Valeska – Jorquera Cabello,V (2015), ch–CHI Women, 2019. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Bb5 Bd7)

7.c3 Nf6 8.Re1 Rc8 9.d4 cd4 10.cd4 (worse 10.Nd4 Nd4 11.Bd7 Qd7 (worse 11...Kd7 12.Qd4 Ke8 13.Qa7+-) 12.cd4 Bb4-/+) 10...Bb4 11.Bd2 Bd2 12.Qd2 0-0 13.Bd3 (13.Nc3 Ne7 14.Bd3 Bc6+=) 13...Qa5 14.e5 Qd2 15.Nbd2 (worse 15.Nfd2 Nb4 16.ef6 Nd3 17.fg7 Kg7-/+) 15...Nb4 16.Bb1 Nfd5 17.Ne4 b6 (17...Nc2 18.Bc2 Rc2 19.Nd6=) 18.Nd6+= Rc3 19.Ng5 (19.a3 Nc2 20.Bc2 Rc2+=) 19...h6= 20.Nge4 Rc7 (20...Ra3 21.Nc4 Ra4 22.Ned6=) 21.a3+= Nc6 22.Nb5 Rcc8 23.Nbd6 (23.Ned6 Rcd8 24.Be4 a6 25.Bd5 ed5+=) 23...Rcd8 (23...Rc7 24.Nb5 Rcc8 25.Ned6=) 24.Rd1 f6 25.ef6 (25.Ba2 fe5 26.de5 Ne5 27.Bd5 ed5 28.Rd5 Nf7+=) 25...gf6= 26.Bc2 (26.Ba2 f5 27.Ng3 Nc3=) 26...Be8 (26...Na5!? 27.Rd3 Nf4 28.Rg3 Kh8=+) 27.Ne8+= Rfe8? (better 27...Rde8!? 28.Ba4 Rc8+=) 28.Ba4+- Nce7 29.Be8 Re8 30.Rac1 Rd8 31.Nc3 Kf7 (31...Nf5 32.Ne2+-) 32.Nb5 (32.Nd5 Nd5 33.Rc6 Nf4+-) 32...Rd7+- 33.g3 a6 34.Nc3 b5 (34...Nf5 35.Ne2+-) 35.Ne4 a5 Black prepares b4 36.Kg2 (36.Rc5 f5 37.Nd2 b4+-) 36...b4+- 37.ab4 ab4 38.Nc5 White begins to deal mighty blows 38...Rc7 39.Re1 Nf5? (better 39...Rc6+-) 40.Ne6+- Rc1 41.Nd8 Kg6 42.Rc1 Nc3? (better 42...Nd4 43.Nc6 Nc6 44.Rc6 Kf5+-) 43.Nc6+- Ne2 44.Rb1 (44.Rb1 Nfd4 45.Nd4 Nd4 46.Rb4+-) 1–0. Christiansen,Johan_Sebastian (2495) – Kuzubov,Y (2695), World Blitz, 2017. (=1.e4 c5 2.Nf3 Nc6 3.b4 d6 4.bc5 dc5 5.Bb5 Bd7 6.0-0 e6)

7.Nc3 Bd6 8.Re1 a6 9.Bc6 Bc6 10.e5 Bc7 11.Ba3+/- Ne7 12.Bc5 0-0 13.Nd4 Re8 14.Qg4 Ng6 15.Nc6+- bc6 16.d4 Ba5 17.Re3 Qh4 18.Qf3 Rec8 19.Ne4 Bc7 20.Nd6 Bd6 21.ed6 Qd8 22.Rb3 Qd7 23.Rab1 h6 24.Rb7 (24.Rb7 Nf8 25.h4+-) 1–0. Neijhof,Ron A. van (2015) – Gottsmann,Lothar, EU/WS/O/013 ICCF, 2008.

7.c4 f6 8.Nh4 Nge7 9.Bb2 Nd4 10.Bd4 cd4 11.Bd7 Qd7 12.d3 0-0-0 (12...Nc6 13.Nd2=) 13.f4 h5 (13...Nc6 14.Qe2=) 14.f5 Nc6 15.Ng6 Rh6 16.Nd2 Bd6 17.Qa4 Bb8 18.Nf3 Qc7 (18...Ne5 19.Qd7 Kd7 20.Nfe5 Be5 21.Rab1+/-) 19.g3 (19.Rab1 ef5 20.ef5 Qd7+/-) 19...h4 (19...Qa5!? 20.Qb5 Bd6+=) 20.Nfh4 Ne5 (20...ef5 21.ef5 Re8 22.Nf4+/-) 21.Ne5 Qe5 22.Ng6 Qd6 (22...Qc5 23.Rab1 ef5 24.Rf5+- (24.ef5?! a6+-)) 23.c5!+- Qd7 24.c6! bc6 25.Rfc1 ef5 26.Qa6 Kc7 27.Ne7!! (27.Ne7 Rdh8 28.Rab1 Rh2 29.Rb7 Kd8 30.Nc6 Ke8 31.Rd7 (31.Nb8 Rh1 32.Kg2 R8h2 33.Kf3 Rc1 34.g4 fe4 35.Kf4 Rf2 36.Kg3 Rf3 37.Kh2 Rc2 38.Kg1 Qg4 39.Kh1 Rh3) 31...Rh1 32.Kg2 R8h2 33.Kf3 fe4 34.de4 Rf1 35.Qf1 Kd7 36.Nb8 Ke7 37.Rc7 Kd6 38.Rd7 Kc5 39.Qc1 Kb5 40.Rb7 Ka4 41.Qc6 Ka3 42.Qa6) 1–0. Punin,Andrey – Tarlev,Konstantin, UKR–ch sf U14, 2000. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

7.d3 Be7 8.Na3 a6 9.Ba4 b5=+ 10.Bb3 Bf6 11.Rb1 Nge7 12.c4 b4 13.Nc2 a5 14.d4= cd4 15.Ncd4 Nd4 16.Nd4 Qc7 17.Nb5 Bb5 18.cb5 0-0 19.a4 Rfd8 20.Qe2 Bc3 21.Be3 Nc8 22.Rbd1+/- Nb6 23.f4 Rd1 24.Rd1 Rd8 25.Rd8 Qd8 26.Qd1 Qd1 27.Bd1+- Nd7 28.b6 Kf8 29.b7+- Ke8?? 30.Be2 Kd8 31.Bb6!! (31.Bb6 Ke7 32.Bb5+-) 1–0. Varizerl,Varizerl (2275) – Roos,Bernhard (1825), RSS7E–73 remoteschach.de, 2007.

7.d3 Be7 8.Nc3 Nf6 9.Be3 (9.Rb1 0-0+=) 9...0-0 10.h3 (10.Bc6 Bc6 11.Ne5 Qc7 12.Nc6 Qc6=) 10...a6 11.Bc6 Bc6 12.Qd2 (12.Ne5 Qc7 13.Nc6 Qc6=) 12...b5=+ 13.Ne2 Qc7 (13...Nd7 14.Rae1=+) 14.Bf4= White plans e5 14...Bd6?? (better 14...Qb6=) 15.Bd6 Qd6 16.e5 Qe7 17.ef6 Qf6 18.Nh2 Rfe8 (18...Qg6 19.f3+-) 19.f4 (19.Ng4 Qd8+-) 19...Qg6 20.Nf3 e5 (20...Red8 21.Rf2+-) 21.fe5 Bf3 22.Rf3 Re5 23.Ng3 Rae8 24.Raf1 Qe6 Black prepares c4 (24...R5e7 25.Qf4 Qb6 26.Nf5+-) 25.Rf7 Re1 (25...Qf7 26.Rf7 Kf7 27.Ne4+-) 26.Qe1 Qe1 27.Rf8!! Rf8 28.Re1 c4 (28...Rd8 29.Re7+-) 29.dc4 bc4 30.Re4 Rc8 31.Ne2 (31.Nf5!? Rf8 32.Nd6 c3+-) 31...Kf7 32.Kf2 Rc6 33.Ke3 Kf6 (33...Rg6 34.g3+-) 34.Kd4 Re6 (34...a5 35.Re5 Rd6 36.Rd5+-) 35.Re6 Ke6 36.Nf4 (36.Kc4 Kd6+-) 36...Kf5 37.Kc4 Kf4 (37...g5 38.Nd5+-) 38.Kd4 Kg3 39.c4 Kg2 40.c5 g5 41.c6 h5 42.c7 Kh3 43.c8Q g4 44.Ke3 h4 (44...Kg2 45.Qc2 Kg1 46.Qf2 Kh1 47.Qf1 Kh2 48.Kf2 g3 49.Kf3 h4 50.Qg2) 45.Kf2 a5 46.a4 Kh2 47.Qg4 h3 48.Qg1 1–0. Puzanov,Vasyl – Cavaille,Cedric, FICGS, 2014. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Bb5 Bd7)

7.Re1 Nf6 8.c3 a6 9.Bf1 e5 10.a4 Be7 11.Na3 0-0 12.Nc4 Qc7 13.Ne3 Bd6 (13...Ne4? 14.Nd5 Nf2 15.Nc7 Nd1 16.Na8 (16.Rd1?! Rad8 17.Nd5 Bd6+-) 16...Ra8 17.Ba3+- (17.Rd1?! e4+-)) 14.Bb2 Rfe8 (worse 14...Ne4 15.Nd5 Nf2 16.Kf2+-) 15.Nc4 Bf8 16.d4 (16.a5 Rad8=+) 16...ed4-/+ 17.cd4 cd4 18.e5 Ng4 19.Rc1 Be6 (better 19...Bb4!? 20.Re4 f5=+) 20.Nd4= Bc4 21.Qg4 (worse 21.Rc4 Nge5 22.Rc1 Qb6 23.Nc6 Nc6=+ (worse 23...Qb2 24.Rb1 Qc3 25.Ne5 Re5 26.Re5 Qe5 27.Rb7+=)) 21...Bf1 22.Kf1 (22.Nc6 Bg2 23.Qg2 bc6 24.Qc6 Qe7=) 22...Qb6 (22...Ne5 23.Qg3 Qd6 24.Re3=+) 23.Nf5 Re6 24.Re2 Rd8 25.f4 (25.Bc3!?=) 25...Qb3=+ 26.Rce1 (26.Ne3 Qa4 27.Kg1 Rd3-/+) 26...Rg6 (26...Rd1 27.Qg3 Qa4 28.Ne3 Re1 29.Ke1-/+) 27.Qf3 Qf3 (27...Rd3!? 28.Qe4 Bb4-/+) 28.gf3=+ Re6 (28...Bb4 29.Rc1=) 29.Ng3= Bb4 30.Rc1 (30.f5 Rh6 31.Rc1 Kf8=) 30...Bd2=+ 31.Rc4 b5 32.ab5 ab5 33.Rce4 b4 (33...Rd3!?=) 34.f5 Ree8 35.Rg4 (better 35.Rc4!? Ne7 36.f6=) 35...Bc3=+ 36.f4 (36.Ne4 Bb2 37.Nf6 Kf8 38.Nh7 Ke7 39.Rb2 Rd1 40.Kg2 Ne5 41.Rgb4+= (worse 41.Rbb4 Ng4 42.Rg4 Rd5=+)) 36...Rd1-+ 37.Kg2 Nd4 38.Rf2 Ra8 (better 38...Kh8!? 39.Ne4 Nf5-+) 39.f6=+ g6 40.f5 Bb2 (40...Kh8 41.fg6 hg6 42.Ne4=+) 41.Rb2 b3 42.e6 (42.Rd4 Rd4 43.Rb3 Rd2 44.Kh3 Rf2-/+) 42...fe6 43.fe6 Ne6 44.Rb3 ½–½. Akshayraj,Kore (2390) – Roy Chowdhury,Saptarshi (2425), 47th Premier National Chess Championship, 2009. (=1.e4 c5 2.Nf3 Nc6 3.b4 d6 4.bc5 dc5 5.Bb5 Bd7)

5.Nc3 Nf6

6.Rb1 A) 6...Nd4 7.e5 (7.Bc4 e6 8.0-0 Bd6 9.Nb5 Nf3 10.Qf3 Be5 11.a4 0-0 12.d3=; 7.Bd3 e6 8.0-0 Bd6 9.Nb5 e5 10.Nbd4 cd4 11.c3 dc3 12.dc3=; 7.Bb2 Bg4 8.Nb5 Bf3 9.gf3 e5 10.Nd4 cd4 11.Bb5 Nd7 12.f4+=) 7...Nd7 8.Bb2 Nf3 9.Qf3 Ne5 10.Bb5 Nd7 11.Nd5 f6 12.Nf4+/-; B) 6...a6 7.e5 (7.a4 e5 8.Bc4 Be7 9.d3 0-0 10.0-0 Qc7 11.Bg5 Nb4 12.Rb2=; 7.Be2 e5 8.a4 Be7 9.Bc4 0-0 10.0-0 Bg4 11.h3 Bd7 12.d3=; 7.Bb2 e5 8.Bc4 Bd6 9.a4 Nd4 10.h3 0-0 11.0-0 Bd7 12.Bc1+=) 7...Nd5 8.Ne4 b6 9.Bb2 Nf4 10.d3 Bg4 11.h3 Bf5 12.Nfd2=; C) 6...Qc7 7.Bc4 (7.Bb2 e5 8.Bb5 Bd7 9.Nd5 Nd5 10.ed5 Nd4 11.Bd7 Kd7 12.c3=; 7.Bb5 Bd7 8.0-0 e5 9.d3 Rd8 10.Bc4 Be7 11.Bg5 Na5 12.Bf6+=; 7.Nb5 Qd8 8.e5 Ng4 9.Bb2 a6 10.Na3 b5 11.h3 Nh6 12.Be2=) 7...Bg4 8.h3 Bh5 9.g4 Bg6 10.d3 e6 11.Nb5 Qd8 12.Bf4+=; D) 6...e6 7.e5 (7.Bb5 Bd7 8.Be2 Rb8 9.Bb2 e5 10.Nb5 a6 11.Nc3 b5 12.0-0=; 7.Bb2 Bd6 8.Bb5 Bd7 9.Qe2 Ne5 10.Ne5 Be5 11.Na4 Bb2 12.Rb2=; 7.a3 Bd6 8.Bb5 Bd7 9.0-0 0-0 10.Re1 Ne5 11.Bb2 Qc7 12.h3=) 7...Nd5 8.Bb2 Nc3 9.Bc3 Qd5 10.Rb2 Be7 11.Bb5 0-0 12.d3=.

6.Bb2 e5 7.Bc4 (7.Rb1 Bd6 8.Bc4 Nd4 9.h3 0-0 10.0-0 Qe7 11.Nd5 Nd5 12.Bd5=; 7.Bb5 Bd6 8.Bc6 bc6 9.0-0 Rb8 10.Rb1 0-0 11.Qe2 Qa5 12.Qe3=) 7...Be7 8.Bb5 Bd7 9.Bc6 Bc6 10.Ne5 Be4 11.Ne4 Ne4 12.Qe2+=.

6.Bb5 A) 6...Qc7 7.e5 (7.0-0 Bd7 8.Bb2 e5 9.Nd5 Nd5 10.ed5 Nd4 11.Bd7 Kd7 12.Bd4+=; 7.d3 Bd7 8.0-0 e5 9.Re1 Bd6 10.Bg5 Qa5 11.Bf6 gf6 12.Qd2+=) 7...Ng4 8.Qe2 Bd7 9.Nd5 Qd8 10.0-0 a6 11.Bd3 e6 12.Nf4+=; B) 6...Bd7 7.Bb2 (7.Rb1 e6 8.0-0 Bd6 9.Re1 Ne5 10.d3 Nf3 11.Qf3 Be5 12.Bd7=; 7.d3 e6 8.Bc6 Bc6 9.Ne5 c4 10.Nc6 bc6 11.Rb1 Qa5 12.Bd2=; 7.0-0 e6 8.e5 Nd5 9.Nd5 ed5 10.Re1 Be7 11.d4 cd4 12.Nd4=) 7...e6 8.0-0 Bd6 9.Qe2 e5 10.Bc6 Bc6 11.Nb5 Bb5 12.Qb5=.

6.Bc4 a6 7.e5 (7.a4 e6 8.0-0 Bd6 9.Bb2 Nd4 10.Rb1 0-0 11.h3 Bd7 12.Re1=; 7.0-0 b5 8.e5 bc4 9.ef6 gf6 10.Ba3 Nb4 11.Ne4 e5 12.Bb2+=; 7.Rb1 b5 8.e5 bc4 9.ef6 gf6 10.Ne4 f5 11.Ng3 Rg8 12.Bb2+=) 7...Ng4 8.e6 Be6 9.Be6 fe6 10.Bb2 e5 11.Ne4 c4 12.Qe2+=.

6.Bc4 Qd6 7.Rb1 (7.d3 Bg4 8.Rb1 Qd7 9.Bf4 e5 10.Bg5 Bf3 11.Qf3 Nd4 12.Qd1+=; 7.0-0 a6 8.a4 Nd4 9.Ng5 e6 10.Re1 Nd7 11.d3 Ne5 12.Ba2=; 7.Bb2 Bg4 8.h3 Bh5 9.g4 Bg6 10.d3 a6 11.g5 Nd7 12.Nh4+=) 7...e5 8.Ng5 Nd8 9.d3 a6 10.Nd5 Nd5 11.Bd5 Qg6 12.Qf3+=.

6.Bc4 e6 7.e5 (7.d3 Bd6 8.0-0 a6 9.a4 Qc7 10.Bb2 Nd4 11.h3 0-0 12.Rb1=; 7.0-0 Bd6 8.d3 a6 9.a4 Qc7 10.Bb2 Nd4 11.h3 0-0 12.a5=; 7.Rb1 Bd6 8.Qe2 e5 9.0-0 0-0 10.Nb5 Be7 11.a4 b6 12.Qe3=) 7...Ng4 8.Qe2 Nd4 9.Qe4 f6 10.Qg4 Nc2 11.Kd1 Na1 12.Bb2 +/-.

6.Bc4 Bg4 7.0-0 e6 8.Bb5 Qd7 9.h3 Bf3 10.Qf3 a6 11.Bc6 Qc6 12.d3 =.

6.Bc4 Bg4 7.Rb1 Qd7 8.h3 Bf3 9.Qf3 Ne5 10.Qe2 Nc4 11.Qc4 e6 12.d3+=.

6.Bc4 Bg4 7.Bb5 Qd6 8.h3 Bd7 9.Rb1 a6 10.Bc6 Bc6 11.Qe2 e5 12.d3 =.

6.Bc4 Bg4 7.e5 Ne5?? (better is 7...Bf3 8.Qf3 Qd4 9.Bf7 Kf7 10.ef6 Qe5 11.Kd1 ef6=) 8.Ne5+- Bd1 (8...Be6 9.Be6 fe6+-) 9.Bf7 1–0. Hajdu,Sandor (1990) – Simon,Zsofia, HUN–chT U20 Budapest, 2004. (=1.e4 c5 2.b4 d6 3.Nf3 Nc6 4.bc5 dc5)

6.Bc4 Bg4 7.h3 Bf3 8.Qf3 a6 9.Nd5 Ne5 10.Qg3 Nfd7 11.Bb2 f6 12.Be2+=.

5.Nc3 g6

6.Ba3 A) 6...Qa5 7.Nd5 (7.Bb2 Bg7 8.Bc4 Nf6 9.Nd5 0-0 10.Nf6 ef6 11.Bc3 Qa4 12.d3=) 7...Bg7 8.Rb1 e6 9.Rb5 Qd8 10.Ne3 Nf6 11.e5 Nd7 12.Nc4+=; B) 6...b6 7.Bc4 (7.Bb2 Bg7 8.Bb5 Bd7 9.0-0 Nh6 10.Rb1 Nd4 11.Bd7 Qd7 12.Nb5=; 7.Bb5 Bd7 8.Bb2 Bg7 9.0-0 a6 10.Be2 Nf6 11.Nd5 0-0 12.Nf6=; 7.Rb1 Bg7 8.Bb2 Nd4 9.Nb5 e5 10.Nbd4 ed4 11.c3 dc3 12.Bc3+=) 7...Bg7 8.Bb2 Nf6 9.e5 Ng4 10.Bd5 Bd7 11.Bf7 Kf7 12.e6+=; C) 6...Bg7 7.Bd3 (7.Bb5 Bc3 8.dc3 Qa5 9.Bc6 bc6 10.Bb2 Rb8 11.Qc1 Nf6 12.Nd2=; 7.Bb2 Nf6 8.Nd5 0-0 9.Nf6 Bf6 10.Rb1 Nd4 11.Nd4 cd4 12.Bc4=; 7.Bc5 Qa5 8.Be3 Bg4 9.Be2 Bc3 10.dc3 Nf6 11.Rb1 Rd8 12.Nd2=) 7...Bc3 8.dc3 Qa5 9.Bb2 Nf6 10.Nd2 0-0 11.Qe2 Bg4 12.Qe3=.

6.Rb1 A) 6...Nf6 7.Ba3 (7.Bb5 Bd7 8.Ba3 a6 9.Bc6 Bc6 10.d3 b6 11.Bb2 Bg7 12.Ne5=; 7.e5 Ng4 8.e6 Be6 9.h3 Nf6 10.Rb7 a6 11.Ng5 Bd5 12.Rb1=; 7.Bc4 Bg7 8.Rb5 Qd6 9.0-0 a6 10.Rb6 Qd8 11.Rb1 b5 12.e5=) 7...Qa5 8.Bb2 Nd4 9.e5 Nd7 10.Nd4 cd4 11.Ne2 d3 12.e6+=; B) 6...Nd4 7.Bc4 (7.Ba3 b6 8.Nd4 cd4 9.Nd5 Bg7 10.Bb5 Bd7 11.Bd7 Qd7 12.0-0=; 7.Bb5 Nb5 8.Rb5 b6 9.Nd5 Ba6 10.Rb1 Bc4 11.Bb2 f6 12.Nc3=; 7.Bb2 Nf6 8.e5 Nd7 9.Nb5 Ne6 10.d4 cd4 11.Nfd4 Ndc5 12.Ne6+=) 7...Bg7 8.Ba3 Qd6 9.Nd4 Qd4 10.Qe2 Nf6 11.Nd5 Nd5 12.Bd5+/- 1.22; C) 6...Rb8 7.Bb2 (7.Ba3 b6 8.Bb5 Bd7 9.Bb2 Bg7 10.0-0 Nd4 11.Bd7 Qd7 12.Nb5+=; 7.Bb5 Bd7 8.Ba3 b6 9.Bb2 Bg7 10.0-0 Nd4 11.Bd7 Qd7 12.Nb5+=) 7...Bg7 8.Bb5 Bd7 9.0-0 Nd4 10.Bd7 Qd7 11.Nb5 e5 12.Nbd4+=; D) 6...Bg7 7.Bb2 (7.Bb5 Bd7 8.Be2 Bc3 9.dc3 Qc7 10.Be3 Rd8 11.Nd2 b6 12.0-0=) 7...Nf6 8.Bb5 Bd7 9.Na4 a6 10.Bc6 Bc6 11.Nc5 b6 12.e5+=.

6.Bb2 Bd7 7.Rb1 (7.Bc4 Bg7 8.0-0 Nf6 9.Nd5 0-0 10.Nf6 ef6 11.Rb1 Be6 12.Qe2+=; 7.Nd5 f6 8.Bc4 Na5 9.Be2 Bc6 10.Nc3 e5 11.Rb1 c4 12.0-0+=) 7...Bg7 8.Nd5 Bb2 9.Rb2 Rb8 10.Bc4 e6 11.Nc3 Nd4 12.0-0+=.

6.Bb2 Nf6 7.Bb5 (7.e5 Ng4 8.e6 Be6 9.Ne4 Rg8 10.Nc5 Qb6 11.Ba3 Bd5 12.Rb1=; 7.Nd5 Bg7 8.Bb5 Bd7 9.0-0 0-0 10.Nf6 ef6 11.d3 Re8 12.a4+=; 7.Bc4 Bg7 8.Nd5 0-0 9.Nf6 ef6 10.0-0 Re8 11.Re1 Bg4 12.Rb1=) 7...Bd7 8.e5 Nd4 9.Nd4 cd4 10.ef6 dc3 11.Bd7 Qd7 12.Bc3+/-.

6.Bb2 Bg7 7.Rb1 Nf6 8.Bb5 Bd7 9.Na4 a6 10.Bc6 Bc6 11.Nc5 b6 12.e5+=.

6.Bb2 Bg7 7.Rb1 Nf6 8.Bc4 0-0 9.0-0 Bg4 10.Be2 Bf3 11.Bf3 (worse 11.gf3 Nh5 12.Kh1 Nf4-/+) 11...Nd4 (11...Ne8 12.h4=) 12.e5 (12.Nd5 Rb8=) 12...Nf3 (12...Nd7!?=) 13.Qf3+= Ne8 (13...Nd7 14.Qb7 Be5 15.Rfe1+=) 14.Qb7 Be5 15.Rfe1 (15.Nd5 Nc7 16.Be5 Nd5+-) 15...Bg7 (15...Rb8 16.Qe4 (worse 16.Qa7 Rb2 17.Rb2 Qd2-+) 16...Bd4 17.Qd3=+) 16.Re7 (16.Nd5!? Rb8 17.Ne7 Kh8 18.Bg7 Ng7 19.Qe4 Qd2 20.g3+=) 16...Rb8 (16...Nd6!? 17.Qc7 Nc4=) 17.Qd7+= (worse 17.Qa7 Rb2 18.Rb2 Qd2-+) 17...Qa5 18.Qa7 (better 18.Ree1+=) 18...Qb4?? (18...Qa7 19.Ra7 Nd6 20.Ra4=) 19.Qa3 (better 19.Nd5 Qb2 20.Qb8 Qa2 21.Qb3 Qb3 22.Rb3+- (22.cb3?! Nf6 23.Ne3 Rd8+-)) 19...Nd6 (better 19...Bc3!? 20.Qc3 Qc3 21.dc3 Nd6=) 20.Qb4+= Rb4 (20...cb4? 21.Nd5 Rfd8 22.Re2+-) 21.Ree1 (21.a3 Rb6 22.Bc1 Rb1 23.Nb1 Nf5+=) 21...Nc4+= 22.Ba1 Nd2 (22...Rd8 23.Ne4 Ba1 24.Ra1 Nd2 25.Nc5+-) 23.Rb4+- cb4 24.Nd5 Ra8 (24...Rb8 25.Nf6 Bf6 26.Bf6+-) 25.Bg7 (25.Nb4 Nc4 26.Bg7 Kg7+-) 25...Kg7+- 26.Nb4 Ra4 27.c3 Nc4 (27...Ra3!?+-) 28.g3+- Ra3 29.Rc1 Ra4 (29...Nd2 30.Rc2 Nf3 31.Kh1+-) 30.f3 (30.Kg2 Ra5+-) 30...Nd6 (better 30...Na3 31.Nd5 Nc4+-) 31.Kf2 (31.Rc2 Ra8+-) 31...Kf6? (better 31...Nb5!?+-) 32.Ke3 (32.Ke2 h5+-) 32...Ke5 (32...Nc4 33.Ke4+-) 33.Kd3 g5 (33...Ke6 34.Rc2+-) 34.Kc2 Nb7 35.Kb3 Nc5 (35...Ra8 36.Re1 Kf6 37.Nd5 Kg7 38.Re2+-) 36.Kc4 Nd7 (36...Ne6 37.Kb5 Ra3 38.Rc2+-) 37.Rd1 (37.Kb5 Ra3+-) 37...Nf6? (37...Ke6+-) 38.Kb3 Ra8 39.a4 (39.c4 Kf5+-) 39...Ke6 40.c4 Nd7 41.Rd5 (better 41.Nd3+-) 41...h6 (41...Ne5 42.f4 gf4 43.gf4+-) 42.a5 (42.c5 Ke7+-) 42...Ke7 (42...Ne5 43.f4 Nf3+-) 43.a6 Nb8 (43...Kd8 44.Rd6 h5 45.Kc3+-) 44.Ra5 Kd7 (44...Nd7 45.c5 Ke6 46.f4+-) 45.a7 Nc6 (45...f6 46.Nd5 Nc6 47.Nb6 Kc7 48.Na8 Kb7 49.Rc5 Na7 50.Nc7+-) 46.Nc6 Kc6 47.c5 Kb7 (47...h5+-) 48.Kc4 Kc6 49.Ra6 Kb7 50.Kb5 Kc7 51.c6 f5 52.Kc5 (52.Ra1 h5 53.Rd1 Ra7 54.Rd7 Kb8 55.Kb6 Kc8 56.Ra7 Kd8 57.Rh7 h4 58.c7 Kc8 59.Kc6 hg3 60.Rh8) 52...h5 53.Kd5 f4 (53...g4 54.fg4 hg4 55.Ke5+-) 54.gf4 gf4 55.Ke4 h4 56.Kf4 h3 57.Kg3 Rg8 58.Kh3 Rh8 59.Kg3 (59.Kg2 Ra8+-) 59...Rg8 60.Kf2 Ra8 1–0. Meijerink,Inken – Niemann,Leon, ch–GER Youth U25, 2017. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6 5.Nc3 g6)

6.Bb2 Bg7 7.Bb5 Bd7 8.0-0 Nd4 9.Bc4 Nh6 10.h3 b5 11.Nd4 Bd4 12.Bd5=.

6.Bb2 Bg7 7.Bc4 Nf6 8.Nd5 0-0 9.Nf6 ef6 10.0-0 Be6 11.Qe2 Qd6 12.Rab1=.

6.Bb2 Bg7 7.Be2 Nf6 8.Nd5 0-0 9.Nf6 ef6 10.0-0 Re8 11.d3 f5 12.Bg7=.

6.Bb5 Bd7 7.Rb1 Bg7 8.0-0 Nf6 9.Ba3 b6 10.Qe2 Rc8 11.Ba6 Rb8 12.Nd5 =.

6.Bb5 Bd7 7.Bc6 Bc6 8.Ne5 Qc7 9.Nc6 Qc6 10.0-0 Bg7 11.Bb2 e6 12.Re1 Nf6 (12...Ne7!?=) 13.Nd5+/- e5 (better 13...Nh5!? 14.Bg7 Ng7+/-) 14.Be5+- 0-0?? (better 14...Kf8 15.Qf3 Nd7+-) 15.Ne7 (15.Ne7 Kh8 16.Nc6 bc6 17.Qf3+-) 1-0. Delgado Ramirez,N (2630) - Santiso,Daniel (1900), 4th Marcel Duchamp Cup, 2020. (=1.e4 c5 2.Nf3 Nc6 3.b4 d6 4.bc5 dc5)

6.Bb5 Bg7 7.0-0 Bc3 8.dc3 Qd1 9.Rd1 Nf6 10.Ne5 Bd7 11.Nd7 0-0-0 12.Bc6+=.

6.Bb5 Bg7 7.Rb1 Bc3 8.Bc6 bc6 9.dc3 Qd1 10.Kd1 Be6 11.a3 Nf6 12.Nd2+=.

6.Bb5 Bg7 7.Bb2 Bd7 8.0-0 Nd4 9.Bc4 Nh6 10.h3 b5 11.Nd4 Bd4 12.Bd5 =.

6.Bb5 Bg7 7.Bc6 bc6 8.Bb2 e5 9.Rb1 Bg4 10.h3 Be6 11.Qe2 Nf6 (11...Rb8 12.0-0+/-) 12.Ne5 Qd6 13.Nc4 Bc4 14.Qc4 Qe7 15.0-0 0-0 16.Ba3 Nd7 17.Rb7 Nb6 18.Qa6 Qd6 19.Nb1 Rfb8 20.Ra7 Ra7 21.Qa7 Nd7 22.d3 Bd4 23.Nd2 Rd8 (23...Ne5 24.c3! Bc3 25.Nc4 Nc4 26.Bc5+/-) 24.Nb3 1–0. Rihm,Frank – May,R, GER theme, 1994. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.Bb5 Bg7 7.Bc6 bc6 8.Bb2 Nf6 9.Rb1 0-0 10.Qe2 Rb8 11.0-0 Bg4 12.Rfd1+=.

6.Bc4 Bg7 7.Bb2 Bg4 (7...Nf6 8.Nd5+= 0-0 9.Nf6 ef6 10.0-0 Re8 11.Re1 Be6 12.Qe2= 0.22) 8.Bb5 (better is 8.Bf7!? Kf7 9.Ng5 Ke8 10.Qg4+/- Nf6 11.Qe6 Rf8 12.Nd5+/- 1.22) 8...Rc8 (8...Qd6 9.Rb1 Rd8 10.d3 Nf6 11.Nd5 Kf8 12.Ne3+= 0.44) 9.0-0 (9.Rb1 a6 10.Bc6 Rc6 11.Nd5 Bb2 12.Rb2= 0.25) 9...Nf6 (9...Bf3 10.Qf3 Qd2 11.Nb1 Qh6 12.Bc6= –0.12) 10.h3 (10.Nd5 0-0 11.Bc6 Rc6 12.Bf6= 0.16) 10...Be6 (10...Bf3 11.Qf3 Qd2 12.Nd5= –0.19) 11.Ne2 (11.Ne5 Bd7 12.Nd7+= 0.38) 11...0-0 12.Nf4 (12.Rb1= –0.09) 12...Qd7 (12...Bd7 13.Re1=) 13.Bc6 (13.Ne5 Qc7 14.Ne6 fe6 15.Nc6 bc6+/-) 13...Rc6?? (better is 13...Qc6 14.d3 Rfd8=) 14.Ne5+- (14.Ne6?! Re6 (14...fe6? 15.Ne5 Qd6 16.Nc6 Qc6 17.d3+-) 15.d3 Rd8=) 14...Qd6 15.Nc6 Qc6 16.d4 (16.d3 Rd8+-) 16...cd4 17.Qd4 Nh5 18.Qd3?? (better is 18.e5 Nf4 19.Qf4+=) 18...Nf4-+ (18...Bb2?! 19.Nd5 Bd5 20.ed5-+) 19.Qf3 Bb2 (19...Bb2 20.Qf4 Ba1 21.Ra1 Qc2-+) 0–1. Alekseev,Andrey – Sidamonidze,Anastasia, EYCC Girls U8, 2010. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

5.Bc4 e6

6.0-0 a6 7.Be2 =.

6.0-0 Nf6 7.d3 a6 8.a4 Qc7 9.Bb2 (9.Nbd2 Bd6=) 9...Bd6 10.Re1 Ng4 11.h3 (worse 11.Bg7 Bh2 12.Kf1 Nf2=+) 11...Nge5 12.Ba2 (12.Nbd2 b6=) 12...Nf3 13.Qf3 Be5 14.Be5 Qe5 15.Na3 Na5 (15...Qc3 16.Bc4=) 16.Nc4+= Nc4 17.Bc4 (worse 17.dc4 Bd7=+) 17...Bd7 18.a5 Bc6 19.Bb3 (19.Rab1 0-0+=) 19...0-0= 20.Ba4 (20.Qe3 Rad8=) 20...Rab8 21.Reb1 Qc3 (21...c4 22.Qg3 Qg3 23.fg3=) 22.Qd1 Rfd8 (22...Ba4 23.Ra4 Rfd8 24.Rb3+=) 23.Rb3 (23.Bc6!? bc6 24.Rb6+/-) 23...Qe5+= 24.Bc6 bc6 25.Rb6 c4 26.Rc6 (26.Rab1 Ra8=) 26...cd3 27.cd3 Rd3 28.Qd3 Qa1 29.Kh2 Qe5 (29...Qa5!? 30.Ra6 Qc7 31.Qd6 Qd6 32.Rd6 Kf8=) 30.Qg3+/- Qb5 (30...Qg3 31.Kg3 Ra8 32.Kf4+/-) 31.Qc7 (better 31.Ra6 Rc8 32.Qd6+/-) 31...h6?? (better 31...Re8+=) 32.Rb6+- Rb6 (32...Kh7 33.Rb8 Qh5 34.Rf8+-) 33.ab6 (33.Qb6?! Qd3=) 33...Qg5 (33...Qa5 34.Qb8 Kh7 35.b7+-) 34.b7 e5 (34...Qf6+-) 35.b8Q Kh7 36.Qe5 (36.Qe5 Qe5 37.Qe5+-) 1-0. Savitha,Shri B (2280) - Indjic,A (2605), Titled Tuesday, 2021. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.0-0 Be7 7.c3 (7.Bb2 Nf6=) 7...a6 8.d4 b5 9.Bd3 (9.Bb3 Qd6=) 9...Nf6 (9...cd4 10.Nd4 Nd4 11.cd4+=) 10.a3 (10.e5 Nd5 11.dc5 Bc5=) 10...Bb7 11.Be3 (11.Ra2 h6+=) 11...Rc8 (11...c4 12.e5 Nd7 13.Bc2=) 12.Nbd2 (12.dc5 Nb8=) 12...Ng4 13.Qe2 Ne3 (13...0-0 14.h3 Ne3 15.fe3=) 14.fe3 c4 15.Bc2 Qa5 16.e5 Nd8 17.Ne4 Be4 18.Be4 Qc3 (18...Ba3? 19.Qa2 Qc3 20.Qa3 Qa3 21.Ra3+-) 19.a4 Ba3 20.ab5 ab5 21.Rab1 Qa5 22.Ng5+= h6 23.Qh5= Rc7 24.Rf3 Rg8?? 25.Nf7+/- Nf7 26.d5 Qb6 27.Rbf1?? Kd8-+ 28.d6 Nd6! 29.ed6 Bd6 30.Qh4? Kc8-+ 31.Qh5 Qc5?? 32.Rf8!! (32.Rf8 Rf8 33.Rf8 Bf8 34.Qe8) 1–0. Hrabinska,Myroslava (2115) – Timoshenko,Georgy (2560), UKR–chT Alushta, 2002. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.0-0 Nf6 7.Nc3 Be7 8.e5 Nd5 9.Nd5 ed5 10.Bb5 0-0 11.h3 Qc7 12.Re1 a6 13.Bf1 b5 14.a3 Be6 15.c3 Rab8 16.d4 c4 17.Bg5 a5 18.Be7 Qe7 19.Be2 b4 20.ab4 ab4 21.Qa4 Qc7 22.cb4 Rb4 23.Qc2 h6 24.Reb1 Rfb8 25.Rb4 Rb4 26.Bd1 Qb8 27.Ra6 Qb7 28.Qa2?? (better is 28.Ra1=) 28...Rb1-+ 29.Ra8 Nb8 30.Rb8 (30.Qa4 Rd1! 31.Qd1 Qa8 32.Ne1-+) 30...Qb8 31.Qa4 Qb5 (31...Qb5 32.Qb5 Rb5-+) 0–1. Faccia,Sergio (1980) – Rosin,Federico (2115), Milan Crespi op, 2003. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nc6)

6.0-0 Nf6 7.Re1 Be7 8.c3 0-0 9.d4 Na5 10.Bd3 b6 11.Nbd2 Bb7 12.e5 Ne8 (12...Nd5 13.Qc2 cd4 14.Nd4=) 13.Ne4 (13.Nb3 Nb3 14.ab3 a5+=) 13...h6 (13...cd4 14.Nd4 Qd5 15.Bf4=) 14.Bb1 (14.dc5 bc5 15.Qe2 Qc7+=) 14...cd4= 15.cd4 Be4 16.Be4 Rc8 17.Bf4 f5 18.ef6 Nf6 19.Bg6 (19.Bd3 Nd5 20.Bg3 Rf6+=) 19...Nd5= 20.Bg3 Rf6 21.Ne5 Nc6 22.Qg4 Bb4 23.Bh4 (23.Red1 Nc3 24.Rd3 Nd4 25.Kf1+/- (25.Rd4? Qd4 26.Qd4 Ne2 27.Kf1 Nd4-+)) 23...Be1= 24.Re1 Nf4?? (better is 24...Ne5 25.de5 Rg6 26.Qg6 Nf4-/+) 25.Bf7 Kf8? (better is 25...Kh7 26.Bf6 Qf6 27.Be6 Qe6 28.Qf4 Ne5 29.Qe5 Qg6+/-) 26.Bf6+- gf6 27.Qg8 (27.Qf4 fe5 28.Re5 Ne5 29.Be6 Ke8 30.Bc8 Qc8 31.Qe5 Kf7 32.Qf4 Kg7+-) 27...Ke7 28.Ng6 Ng6 29.Re6 Kd7 30.Qg6 Nd4?? (better is 30...Ne5! 31.Rd6 Kd6 32.de5 Kc7+= (worse is 32...Ke5 33.Qg3 Kf5 34.Qh3 Kg5 35.Qe3 Kf5 36.g4 Kg4 37.Qe4 Kh3 38.Qf5 Kh4 39.Qh5)) 31.Re1+/- Kc7 32.h4 Kb8 33.Qh6 Qd6 34.Qh5 Rc5 35.Qd1 Qf4 36.Qd3 Qh4= 37.g3 Qg4 38.Re8 Kc7 39.Kg2 Re5 40.Re5 fe5 41.Bd5 Kd6 42.Be4 Qe2 43.Qe2 Ne2 44.Bh7 a5 45.Kf3 Nd4 46.Ke4 Ne6 47.f4 ef4 48.gf4 b5 49.Bg8 b4 50.f5 Nc5 51.Kd4 a4 52.Bc4 b3 53.a3 Nd7 54.Kc3 Nc5 55.Kb4+/- Kc6 56.f6 Kd6 57.f7 Nd7 58.Ka4 b2 59.Ba2 Ke7 60.Kb4 b1Q 61.Bb1+- Kf7 62.Kb5 Ke7 63.Kc6 Ne5 64.Kc7 Nc4 65.a4 Na5? 66.Ba2 (66.Ba2 Ke8 67.Kb6+-) 1–0. Szabados,Karoly (2125) – Jelovac,Ivko (1895), Subotica SER, City Ch, 2013. (=1.e4 c5 2.b4 d6 3.bc5+= dc5 4.Nf3 Nc6)

4.Nf3 Nf6

5.Nc3 a6 6.a4 Nc6 7.Rb1 e6 8.Bc4 Qc7 9.0-0 Bd6 10.d3 Ng4 11.g3 h5 12.Ng5 Be5 13.Bd2 Qe7 14.Nf3 Qf6 15.Ne5 Nge5 16.f4 Nc4 17.dc4 Qd4 18.Rf2 h4 19.Qe2 hg3 20.hg3 Qf6 21.Rh2 Rh2 22.Kh2 Nd4 23.Qd3 Bd7 24.Ne2 Bc6 25.Nd4 cd4 26.Ba5 Qh6 27.Kg1 f5 28.Qd4 Be4 29.Rb3 Kf7 30.Qd7 Kg8 31.Kf2 Qh2 32.Ke3 Qg3 33.Kd4 Qg1 34.Ke5?? Qc5 35.Ke6 Qf8 36.Ke5 Qf6 0–1. Kovacic,G – Lendwai,Reinhard (2410), AUT–chT2O, 1992.

5.Nc3 Nc6 6.Rb1 g6 7.Bb5 Bd7 8.Ba3 e6 9.e5 Qa5 10.ef6 Qa3 11.Ba4 c4 12.Rb7 Qc5 13.Qe2 Rd8 14.0-0 Bh6 15.Qe4 0-0 16.Qh4 Qh5 17.Qh5 (17.Qc4 Na5 18.Qc7 Nb7 19.Bd7 Nc5-/+) 17...gh5 18.Rd7! Rd7 19.Bc6 Rd6 20.Be4 Bd2 21.Nb5 Rdd8 22.Na7 Bc3 23.Nc6 Rd6 24.Nfe5 Be5 25.Ne5 Ra6 26.f4 Ra3 (26...Ra2 27.Nc4 Ra4 28.Bd3+-) 27.Nc4 (better is 27.Rf3!? Rf3 28.Bf3 h4+-) 27...Ra2 28.Rf3 h4 (28...Ra4 29.Rg3 Kh8 30.Bd3+-) 29.Bd3 (better is 29.Rh3!? h6 30.Rh4 Ra1 31.Kf2 Ra4 32.Rh6 Rd8+-) 29...Rc8 30.Ne5 Ra4 31.h3 Rd8 32.g3 Rdd4 33.gh4 Rf4 34.Rg3 Kf8 35.Bh7 Rf6 36.Nd7 Ke7 37.Nf6 Kf6 38.Rg4 Ra1 39.Kg2 Ke7 40.Bd3 f5 41.Rg3 Ra4 42.h5 Rh4 43.Rg7 Kf6 44.Rg6 Kf7 45.Rh6 Rf4 46.Kg3 Rd4 47.Rh7 Kf6 48.h6 e5 (48...Rd8 49.Ra7 Rg8 50.Kf3+-) 49.Rc7 1–0. Praneeth,S (2035) – Debashis,D (2395), 50th World Juniors, 2011. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

5.Nc3 e6 6.Bb2 a6 7.a4 b6 8.Bc4 Bb7 9.0-0 Nc6 10.e5 Nd7 11.Ne4 Be7 12.Qe2 0-0 13.d3 Qc7 14.Ned2 Nb4 15.Ne1 Nd5 16.Bd5 Bd5 17.c4 Bc6 18.f4 b5 19.a5 Rad8 20.Nef3 Nb8 21.Ng5 b4 22.Nde4 Bg5 23.fg5 Be4 24.Qe4 Nc6 25.Rf3 Ne7 (worse is 25...Na5 26.Rh3 g6 27.Qh4+/-) 26.h4 (26.Qg4 Ng6 27.Rh3+=) 26...Nf5 27.Rh3 Nd4 28.h5 Qc6 29.Qg4 Rd7 30.h6 g6 31.Re1 Qc7 32.Qf4 Qd8 (32...Qa5? 33.Bd4 f6 34.Ra1+-) 33.g4 Nb3 (33...Qa5?? 34.Qf6 Nf5 35.gf5 gf5 36.Qg7) 34.Qf1? (34.Qf6 Qf6 35.gf6 Rfd8-/+ (35...Na5?! 36.Ra1 Nb3 37.Ra6=)) 34...Nd2 (better is 34...Qg5!? 35.Qe2 Rb8-+) 35.Qf4 Nb3 36.Rd1?? Nd4 37.Re3 Nc2 38.Rf3 Nd4 39.Rf2 Nb3-/+ 40.Qf3? Qg5-+ 41.d4 Nd4 42.Bd4 Rd4 43.Rd4 cd4 44.Qf4 Qf4 45.Rf4 Rd8 46.Kf2 d3 47.Ke1 d2 48.Kd1 b3 49.c5 Rb8 50.Rf1 b2 51.Kc2 b1Q! 52.Rb1 Rb1 53.Kd2 Rb5 0–1. Dounis,Alexandros (2090) – Papadopoulos,Ioannis (2240), GRE–ch U14 Panellhnia, 2005. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

5.Nc3 e6 6.Bc4 a6 7.a4 Nc6 8.d3 Qc7 9.Bb2 Be7 10.0-0 0-0 11.Ne2 Rd8 12.Ng3 Bd7 13.e5 Nd5 14.Qd2 Na5 15.Bd5 ed5 16.Nh5 d4 17.Qf4 Qb6 18.Rfb1 Qg6 19.Ng3 Nc6 20.c3 (20.Ba3 b5=+) 20...Bg4 (better 20...dc3!? 21.Bc3 Qd3-/+) 21.cd4= Bf3 22.Qf3 cd4 23.Qe2 (23.Nf5 Bc5 24.Qe4 Re8=) 23...Bh4=+ 24.Ba3 (24.Nh5 Qf5 25.f4 g6-/+) 24...Bg3-/+ 25.hg3 Rd7 26.Rb6 Re8 27.Rab1 ½–½. Gorainow,Nikita (1710) – Hinrichs,Niklas (1940), German Youth Championship Open A, 2016. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3 Nf6)

5.Nc3 e6 6.Bc4 Be7 7.0-0 0-0 8.Qe2 Nc6 9.e5 Nd5 10.Qe4 Nb6 11.Bd3 g6 12.a4 Na5 13.Be2 Nd5 14.Nb5 a6 15.Na3 Bd7 16.Bb2 Bc6 17.Qg4 Nb6 18.d4 Na4 (18...Ba4?! 19.dc5 Bc5 20.Nb1=) 19.Bc1 Nc3 20.Bd3 Bf3 21.Qf3 cd4 22.Bh6 Re8 23.Nb1 Nc6 24.Nc3 dc3 25.Bf4 Bg5 26.Bg3 Qc7 27.Be4 Nd8 28.Rfb1 Ra7 29.h4 Bd2 30.h5 b5 31.Qf6 Qe7 32.Bh4 g5 33.Qh6 f5 34.ef6 gh4 35.fe7 Bh6 36.ed8Q Rd8 37.Rb5 Rd1 38.Rd1 ab5 39.Rb1 Bf4 40.Kf1 Ra5 41.Bd3 Bd2 42.Bb5 Kg7 43.Kg1 Kf6 44.Kh2 Ra7 45.Kh3 Rb7 46.Kh4 e5 47.Rb3 e4 48.Kg4 Rg7 49.Kh3 Be1 50.Bc6 Re7 51.Rb4 Kf5 52.Rc4 (52.Rb5!? Re5 53.g4 Kf4 54.Rb7 Bf2 55.Rf7 Ke3 56.Rh7+=) 52...Bf2+= 53.Rc3 e3 54.Bf3 e2 55.Be2 Re2 56.Rf3 Kg5 57.g4? (57.Rf7 Kh6 58.g4 Re3 (58...Rc2?! 59.g5 Kh5 60.Rh7 Kg5 61.Kg2-/+) 59.Kg2 Bh4-+) 57...Rc2 58.Rf5 Kh6 59.Rf6 Kg7 60.g5 Rc3 61.Kg4 Rc4 62.Rf4 Rc2 63.h6 Kg8 64.Rb4 Rc5?? (64...Bc5 65.Rb7 Rc4 66.Kf5 Bf8+=) 65.Rb8= Kf7 66.Rb7 Kg8 67.Rg7 Kh8 68.Rf7 Rc4 69.Kf5 Rc8 70.g6 hg6 71.Kg6 Rc6 ½–½. Hrabinska,Myroslava (2220) – Kucherenko,Elena (2105), UKR–ch U20 Girls, 2004. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

5.Nc3 e6 6.Bc4 Be7 7.0-0 0-0 8.e5 Nd5 9.Ne4 Nb6 10.Bd3 (10.Qe2 Nc4 11.Qc4 b6+=) 10...Bd7 11.c4 White has a new backward pawn: d2 (11.Qe2 Qc7 12.Neg5 g6=) 11...Ba4 12.Qe2 Nc6 13.Ba3 Nd4 14.Nd4 Qd4 (14...cd4?? 15.Be7 Bd1 16.Nf6 gf6 17.Rad1+- (17.Bd8?! Be2 18.Be2 Rfd8=; 17.Rfd1 f5 18.Bd8 Rfd8+-; 17.Qd1 f5 18.Bd8 Rfd8+-)) 15.Rab1? (15.Qe3 Qe3 16.de3 Rac8+=) 15...Rad8 (15...Rfd8!? 16.Nd6 Bd6-+) 16.Nd6+= Bd6 (16...Bc6 17.g3 f5-/+ (17...Bd6? 18.Bb2 Be5 19.Bd4 Rd4 20.Rb3+/-)) 17.Bb2= Qf4 18.g3? (better is 18.ed6 Qd6 19.Bh7 Kh7 20.Qh5 Kg8 21.Bg7 Kg7 22.Qg5 Kh8 23.Qh5 Kg8 24.Qg5 Kh7 25.Qh5 Kg7 26.Qg5 Kh8 27.Qh4 Kg8 28.Qg4 Kh7 29.Qh5 Kg7=) 18...Qh6-+ 19.ed6 Rd6 20.Be5 Rd7 21.Bf4 Qf6 22.Be4 Bc6 23.Bc6 bc6 24.Qe4 (24.Rb3 Rfd8-/+) 24...Qd4 25.Qc6 Rc8 26.Qb5 (26.Rb6 Rc6 27.Rc6 Rd8-/+) 26...Qc4 27.Rfc1 Qa2 28.Be3 Qd5 29.Rc5 Rc5 30.Qc5 Qc5 31.Bc5 Rd2 32.Bb6 ab6 33.Rb6 g5 34.Kg2 Kg7 35.Rb4 Kg6 36.h4 h6 37.hg5 hg5 38.Kf3 Rd3 39.Ke2 Ra3 40.Rb7 f6 41.Rb6 e5 42.g4 ½–½. Oleksienko,Michailo (2205) – Aveskulov,Valeriy (2395), UKR–ch U16 Lvov, 2002. (=1.e4 c5 2.b4 d6 3.bc5 dc5)

5.e5 Nd5 6.Bc4 Nc6 7.Bb2 Bf5 8.0-0 e6 9.Nc3 Be7 10.Qe2 (10.Rb1 0-0=+) 10...0-0 11.Nd5 ed5 12.Bd3 Be6 13.c3 Qd7 14.a4 Rae8 15.Bc2 f5 (15...f6 16.Rfe1=+) 16.d4 c4 17.a5 f4 18.Ba3 Ba3 19.Ra3 Qe7 20.Ra2 Rb8 21.h4 (21.Re1 Rbe8+=) 21...Bg4= 22.Bh7?? (better 22.Re1=) 22...Kh7-+ 23.e6? (23.Qc2 g6 24.Ng5 Kg7-+) 23...Bf3 (23...Kg8 24.Re1-+) 24.Qf3 Qe6 25.Re2 Qf5 26.Rfe1 Rf6 (26...Na5?! 27.Re5 Qf7 28.Rd5-+) 27.Re5 (27.Rb2 a6-+ (27...Na5 28.Re5 Qc8 29.Rh5 Rh6 30.Qd5-/+)) 27...Ne5 28.Re5 Qb1 (28...Qd3 29.Rh5 Kg8 30.Qd5 Rf7 31.Rh8 Kh8 32.Qf7-+) 29.Kh2 Rf5 30.Qd5 Rbf8 31.Qc4 Re5 (31...f3!? 32.gf3 Rf3 33.Rh5 Kg6 34.Rg5 Kh6 35.Qe6 R8f6 36.Qd5 Rf2 37.Rg2 Rg2 38.Qg2-+) 32.de5 Qf5 0-1. Simacek,V (1805) - Schleining,Z (2335), 8th Arber Open, 2019. (=1.e4 c5 2.b4 d6 3.bc5 dc5 4.Nf3)

3.Nf3 a6

4.Bb2 cb4 5.a3 ba3 6.Na3=.

4.Bb2 Nc6 5.b5 (5.bc5!? dc5 6.Bd3+=) 5...ab5= 6.Bb5 Bd7 7.0-0 Nf6 8.Re1 (8.a4 Ne4 9.Re1 Nf6=+) 8...e6 (8...g6 9.e5 de5 10.Ne5 Ne5 11.Be5=) 9.d4 (9.a4 Be7=) 9...cd4 10.Nd4 (10.Bd4 Be7=+) 10...Be7=+ 11.Nc3 (11.Nd2 Nd4 12.Bd7 Qd7 (worse 12...Kd7 13.Bd4 Ke8 14.Qf3+=) 13.Bd4 0-0=+) 11...0-0 12.Re3 Ne5 (12...Qb6 13.Na4 Qa5 14.c4=+) 13.Be2 h6 (13...Qa5 14.a4=+) 14.Rg3 Bc6 (14...Qa5 15.a4=) 15.Nc6= bc6 16.Qd2 (16.Rb1 Ng6 17.Bg4 Ng4 18.Qg4 d5-/+) 16...Kh7 17.a4 (17.Rb1 Qd7=) 17...Qc7 (17...Rb8 18.Ba3=) 18.h4 (18.Rb1 Rfb8=) 18...Rad8 (18...h5 19.Rb1=+) 19.Bc1 (19.a5!?+=) 19...d5=+ 20.Qf4 (better 20.ed5!? ed5 21.Qd4=) 20...d4-/+ 21.Nd1 Bd6 (better 21...Rh8 22.h5 Qa5-/+) 22.Rg7+= Kg7 23.Qh6 Kg8 24.Qf6 Qe7 (24...Be7!? 25.Qf4 Qa5+=) 25.Qh6+- f6 26.f4 (26.a5 Rf7 27.h5 c5+-) 26...Nd7 (26...Bc5 27.Kf1 d3 28.cd3 Nd3 29.Nb2+=) 27.f5 (better 27.a5+-) 27...ef5?? (better 27...Rf7=) 28.Bc4+- Rf7 29.Qg6 Kf8 30.Bh6 (30.Qf7?! Qf7 31.Bf7 Kf7 32.ef5 Re8+-; 30.Bf7?! Qf7 31.Qf5 Ke7+-) 30...Ke8 31.Bf7 (31.Nf2 Ra8+-) 31...Qf7 32.ef5 Ne5 33.Qf7 Kf7 34.Nf2 Ng4?? (better 34...Rh8 35.Bc1 Nc4+-) 35.Ng4 ½–½. Janiszewski,M (2095) – Babczynski,Zbigniew (1705), 5th Poland–HUN Open (4), 2017. (=1.e4 c5 2.b4?? d6 3.Nf3 a6)

4.Bc4 e6 5.0-0 (5.bc5 dc5 6.a4 Nc6+=) 5...b5+= 6.Be2 (6.Bd3 cb4 7.a3 ba3+=) 6...Bb7 (6...cb4 7.a4=) 7.Re1 (better 7.bc5!? dc5 8.a4+-) 7...cb4= 8.Bf1 (8.a3 ba3 9.Ba3 Nf6=) 8...Nd7 (8...Nf6 9.a3 ba3 10.Ba3 Ne4 11.Bb2-/+) 9.d4 (9.c3 Ngf6-/+) 9...Be7 10.Bd3 Ngf6 11.Bd2 (11.a3 d5 12.Nbd2 Ne4 13.Ne4 de4 14.Be4 Be4 15.Re4 Nf6-/+) 11...0-0 (better 11...d5!? 12.ed5 Nd5-/+) 12.Bb4=+ Qb6 13.c3 (13.Nbd2 g6=) 13...Rac8 (13...Nh5 14.Qd2=+) 14.e5? (better 14.Qb3!?=) 14...Nd5-/+ 15.Bd6 Bd6 16.Bh7?? (better 16.ed6!? Qd6 17.Ng5-/+) 16...Kh8 (better 16...Kh7 17.ed6 Qd6-+) 17.Ng5?? (17.ed6 Kh7 18.a4-+) 17...Nf4 (better 17...Be7 18.Ne6 fe6-+) 18.g3?? (18.ed6 g6 (18...Bg2? 19.Qg4 Qd6 20.Qh4+-; worse 18...Qd6 19.Be4 Be4 20.Ne4+=) 19.g3 Qd6=+) 18...Be5?? (18...Be7 19.gf4 Bg5 20.fg5 Kh7 21.a4-+) 19.gf4?? (better 19.de5 f6 20.ef6 gf6 A) 21.Qd7 A1) 21...fg5 22.gf4 Rcd8 23.Qd8 (23.Qe6 Qe6 24.Be4 Qg4 25.Kf1 Be4 26.Re4 Rd1 27.Re1 Qh3 28.Kg1 Re1; 23.Re6 Rd7 24.Na3 Qe6 25.Nc2 Qg4 26.Kf1 Qg2 27.Ke1 Qh1 28.Ke2 Bf3 29.Ke3 gf4) 23...Qd8 24.Bc2 Rf4 25.Re6-+; A2) 21...Rcd8 22.Qd8 Qd8 23.Ne6 Ne6-+; B) 21.Be4 fg5 22.gf4 (22.Qd7 Nh3 23.Kg2 Rf2 24.Kh1 Be4 25.Re4 Rd8 26.Nd2 Rd7 27.Nf3 Rf3 28.Rae1 Nf2 29.Kg1 Ne4 30.Kh1 Ng3 31.Kg2 Qf2 32.Kh3 Rf4 33.hg3 Rh7) 22...Be4 23.Re4=+) 19...Bf4-+ 20.Qh5?? (20.Nh3 Bh2! 21.Kh2 Kh7 22.Qd3 g6-+) 20...Nf6 (better 20...Bg5 21.Qg5 Kh7-+) 21.Nf7 Rf7! 22.Qf7 Kh7 23.Re6?? (23.Qe6 Qc7 24.Qh3 Kg6 25.a4 ba4 26.f3-+) 23...Qd8 (23...Qd4 24.Qb7 Qd1 25.Kg2 Rc5-+) 24.Qb7 (better 24.Re7 Ne8 25.Qf5 Kh8 26.Qh5 Bh6 27.Rb7 Nd6+-) 24...Rc7?? (24...Nd5 25.Qa6 Qg5 26.Kf1 Rf8-+) 25.Qf3+- (25.Qa6 Qd5 26.a4 Qh5=) 25...g5 (25...Bc1 A) 26.Ra6 Bb2 27.a4 b4 (27...Ba1? 28.ab5 Bb2 29.b6+-) 28.Qf5 Kg8+-; B) 26.a4 b4 27.Ra2+- (27.Ra6?! Bb2+=)) 26.Nd2! Kg6 (26...Bd2 27.Qd3 Double attack (27.Qf6 Pinning; 27.Qf6 Deflection; 27.Qd3 Decoy)) 27.Rae1 (27.Ne4 Rf7+-) 27...Qh8 28.Nf1 Rh7 (28...Qh7 29.Ng3 Rf7 30.h4 Bg3 31.fg3+-) 29.Qd3 Kf7 (29...Kg7 30.Ra6 Qd8 31.Ng3 Bg3 32.fg3+-) 30.Re7 (30.Qf5 Qd8 31.Rf6 Qf6 32.Qh7 Kf8+-) 30...Kf8 31.Rh7 (31.Qh7 Qh7 (31...Nh7?? 32.Re8 Kg7 33.R1e7 Kf6 34.Rh8 Ke7 35.Rh7 Ke8 36.Ra7+-) 32.Rh7 Nh7+-) 31...Qh7 32.Qh7 Nh7 33.Re6 Kf7 (33...Kg7 34.Ra6 Nf6 35.Ne3+-) 34.Ra6 Nf6 35.Ne3 Ne4 36.Rc6 Ke7 37.Kg2 Kd7 38.d5 Nd2 (38...Kd8 39.Kf3 Nd2 40.Ke2+-) 39.Nf5 (better 39.Nc2 Bd6+-) 39...Nc4 (39...Be5 40.Rb6 Nb1 41.Rb7 Kc8 42.Ra7+-) 40.Nd4 (40.a4!? Be5+-) 40...Bd2 (40...Ne5 41.Ra6+-) 41.Nb5 (41.Nb5 Nb2 42.Rc7 Kd8 43.Rh7+-) 1–0. Nunes,Moezio Correia (1765) – Farias,Luiz Jadir Pinto (1800), 2nd Torneio Schoonenborch SUB, 2015. (=1.e4 c5 2.b4 d6 3.Nf3 a6)

4.bc5 dc5 5.Bb2 b5 6.a4 b4 7.Bc4 (7.d3 Nf6+-) 7...e6 8.0-0 Bb7 9.d3 (9.d4 cd4 10.Nbd2 Nc6=) 9...Nf6+= 10.Nbd2 Be7 11.Ne5 Nbd7 (11...0-0 12.f4+=) 12.Nd7 Qd7 13.f4 0-0 14.Qe2 (14.f5 ef5 15.Rf5 Bc6+-) 14...Qc6 (14...Bc6 15.Bb3+-) 15.Nf3 (15.f5 Rae8+-) 15...Nd7 16.g4 (16.Ne5 Ne5 17.Be5 Bd6+-) 16...Nb6 Attacking the isolated pawn on a4 17.Bb3 (17.Ne5!? Qc7 18.Bb3+=) 17...c4= 18.Ne5 (better 18.dc4 Rfd8 19.a5=+) 18...cd3 (18...Qc5!? 19.d4 Qc7 20.Nc4 Nc4 21.Bc4 Be4=+) 19.cd3 (19.Nc6!? Bc5 20.Qf2 Bf2 21.Kf2 (21.Rf2?! Bc6 22.cd3 Rfd8=) 21...Bc6 22.cd3+-) 19...Qd6= 20.Rf3 (20.Rac1 Rac8=) 20...Nd7 21.Nd7 Qd7 22.g5 (22.f5 Rac8=) 22...Bc5=+ 23.Kg2 Bd4 24.Rh3 (24.Rc1!?=+) 24...Bb2-/+ 25.Qb2 Rac8 26.Rf1 (26.Qe5!?-/+) 26...Rc3-+ 27.Rff3 Qd4 28.g6? (better 28.Qb1-+) 28...hg6 29.Rh4 (29.Qa2-+) 29...Rd3 (29...Rd8 30.Rhh3 Rd3 31.Qd4 R3d4-+ (31...R8d4?! 32.Rd3 Be4 33.Rdf3=)) 30.Qd4+- Rd4 31.Rfh3 Be4 32.Kf2 Rd2 33.Ke1 (33.Ke1 Rd1 34.Kd1 Rd8 35.Ke2+-) 1–0. Steinbrenner,J (2020) – Vonhoff,J (1745), VMCG Open A, 2017. (=1.e4 c5 2.b4 d6 3.Nf3 a6)

4.bc5 dc5 5.Bb2 Nc6 6.Bc4 (6.Be2+=) 6...e5 (better 6...Nf6!?=) 7.Ne5+- Ne5 8.Be5 f6 (8...Qe7 9.Qf3+-) 9.Qh5+- g6 10.Qf3 Qe7 11.Bb2 Bg7 (11...Be6 12.Be6 Qe6 13.0-0+-) 12.Nc3+- b5 (12...Qd8 13.Na4 Qc7 14.Qb3+-) 13.Nd5 (13.Bg8 Rg8 14.Nd5 Qb7+-) 13...Qd6 (13...Qb7 14.Be2+-) 14.e5! Qe5 (14...fe5 15.Nb6 Combination) 1–0. michaelbuss (2770) – mckenna215 (1955), ChessWorld.net, 2011. (=1.e4 c5 2.Nf3 d6 3.b4 a6)

4.bc5 dc5 5.Nc3 Nc6+=.

4.bc5 dc5 5.Bc4 Nc6 6.0-0 e6 7.a4 (7.Bb2 Nf6=) 7...Nf6 8.Re1 Be7 9.Nc3 Nd4 10.e5 Nd5 (10...Nd7 11.Re4=) 11.Ne4 (11.Nd4 cd4 12.Nd5 ed5+=) 11...0-0 (11...Nb4 12.Nd4 Qd4 13.Nc3=) 12.c3 Nc6 13.d4 cd4 14.cd4 Rb8 15.Bg5 Bg5 16.Nfg5 h6 17.Nf3 b5 18.ab5 ab5 19.Bb3 b4 20.Qd2 Nce7 21.Nf6?? (better 21.Nd6+=) 21...gf6-/+ 22.Qh6 Nf5 23.Qh3 Nf4 24.Qg4 Ng6 25.h4 Nh6 26.Qh5 (26.Qg3 fe5 27.h5=+) 26...Kg7 27.Ra7 Nf4 28.ef6 Qf6 29.Qa5 (29.Qe5 Bb7-+) 29...Bb7 30.Re5 White prepares d5 (30.Qg5 Qg5 31.Ng5 Nf5-+ (31...Ng2?! 32.Ne6 fe6 33.Re6-+)) 30...Nf5 (30...Bf3 31.Rg5 Kh8 32.gf3 Nh3 33.Kh2 Ng5 34.Qg5 Qg5 35.hg5-+) 31.d5 (31.Be6 fe6 (31...Ne6?! 32.Rf5 Qg6 33.h5=+) 32.Qb4 Rf7-+) 31...ed5 (31...Nh4 32.Rg5 Kh7 33.Bc2 Kh8 34.Rg4 Nf3 35.gf3 Bd5 36.Qc7-+) 32.Bc2 (32.Qb4 Nh4 33.Rg5 Kh8 34.Nh4 Qg5 35.Rb7 Ne2 36.Kh2 Qf4 37.Qf4 Nf4 38.Rb8 Rb8 39.Bd1-+) 32...Nh4 33.Rg5 (33.Nh4 Qe5 34.Nf5 Kg8 35.Nh6 Kh8 36.Qb4 Ba6-+) 33...Kh8 34.Rg4 Nf3 35.gf3 Rg8 (better 35...Bc8 36.Rf4 Qf4 37.Qa1 Kg8-+) 36.Qc7 (36.Rb7 Rbe8 37.Be4 Rg4 38.fg4 Re4 39.Qa8 Kg7 40.Rf7 Kf7 41.Qa7 Re7 42.Kh1 Qh4 43.Kg1 Qg4 44.Kf1 Qd1) 36...Rg4 37.fg4 Re8 (37...Re8 38.Be4 Re4 39.Ra8 Ba8 40.Qb8 Kg7 41.Qf4 Re1 42.Kg2 Qf4 43.g5 d4 44.f3 Qf3 45.Kh2 Rh1) 0-1. Grabinsky,V (2225) - Jun,Rudolf Jr (2200), 30th Czech Rapid G1, 2019. (=1.e4 c5 2.b4 d6 3.Nf3)

4.d4 cd4 5.Nd4 e6 6.Nc3 Nf6 7.Bc4 Be7 8.0-0= 0-0 9.f4 b5 10.Bb3 Bb7 11.e5? de5-/+ 12.fe5 Nd5 13.Bd5 Bd5= 14.Qg4 Kh8 15.Nd5 ed5 16.Nf5 g6 17.Nh6 Qb6 18.Kh1+= Nc6 19.Nf7+- Kg7 20.Bh6 Kg8 21.Bf8 Bf8 22.Qe6 (22.Qe6 Be7 23.Nd8 Kh8 24.Nc6+-) 1–0. cjack (2085) – rar (1955), net–chess.com, 2008.

3.Nf3 b6

4.Bb2 Bb7 5.bc5 bc5 6.Nc3 Nc6 7.Bb5 (7.Bd3 Nf6+-) 7...e6 (7...Nf6 8.e5 de5 9.Ne5+-) 8.d4 (8.0-0 Nf6 9.Qe2 a6+-) 8...cd4 9.Nd4 Rc8 10.0-0 Nf6 11.Nd5 Nd7 (11...ed5? 12.ed5 Nd5 13.Nc6 Bc6 14.Qd5+-) 12.Nc6 Bc6 13.Bc6 Rc6 14.Re1 e5 (14...Rc8 15.Ne3+-) 15.Qe2 (15.Re3 Be7+-) 15...Be7 16.Rad1 (16.Qb5 Qc8+-) 16...0-0+= 17.Rd3 Bf6 (17...Nb6 18.Rb3+=) 18.Rf3 (18.Red1 Nc5 19.Rc3 Bg5+-) 18...Be7 19.Ba3 (19.Bc3 Nf6+=) 19...Nb6= 20.c4 (20.Bb4 Qd7=) 20...Nd5 (20...Qd7 21.Rg3 g6 22.Rd1=) 21.cd5 (21.ed5 Rb6+=) 21...Rc7= 22.Qd2 Qd7 23.Rc1 Rfc8 24.Rfc3 Rc3 25.Rc3 Rc3 26.Qc3 h6 (26...Qa4 27.f3=) 27.Qc6+= Qd8 28.Kf1 (28.h3 g6+=) 28...Kh7 (28...Qa5 29.Bd6 Bd6 30.Qd6 Qb5 31.Ke1 Qb1 32.Kd2 Qb2 33.Ke3 Qc3 34.Ke2 Qc2 35.Kf3 Qd3 36.Kg4 Qe4 37.Kh3=) 29.Bb4 (29.f3 Qb8 30.Kf2 a5=) 29...Qb8 30.Qc4 Bd8 31.a4 (31.g3 a5 32.Ba3 Qb1 33.Kg2 Be7+=) 31...a5= 32.Be1 Bc7 (32...Qb2 33.f3=) 33.Qb5 Exerts pressure on the isolated pawn 33...Qa7 34.Qc6 Bb6 35.Ke2 (35.Qd6?? Qa6 36.Kg1 Bf2 37.Kf2 Qd6-+) 35...Bc7 (35...Bc5 36.f3=) 36.Bd2 Qb8 (36...Bb6 37.g3+=) 37.Qb5 Qd8 38.g3 Bb6 39.f3 Qc7 40.Kd3 (40.h4!?+=) 40...Qa7= 41.h3 Bc7 (better 41...Bg1!? 42.Qa5 Qf2=+) 42.Be3+- Qa8 43.Bb6 Qd8 44.Be3 Qc8 (44...Qa8!?=) 45.g4+= Qd8 (45...Bd8 46.Bd2+=) 46.Qc6 Qb8 47.Qb5 Qd8 48.Qb7 Kg8 49.Kc4 Qd7 (49...Kh7!?+-) 50.Qc6+- Qd8 51.Ba7 (51.Kb5 Kh7+-) 51...Kh7 (51...g6 52.Kb5+-) 52.Kb5 Qe7 (52...g6 53.Bb6 Bb6 54.Qb6+-) 53.Ka6 (53.Bb6 Bb6 54.Kb6 Qf6+-) 53...Bd8 (53...Kg6 54.Bb6 Bb6 55.Kb6+-) 54.Bb8 Qg5 (54...Qh4 55.Qd7 Bf6 56.Bd6 Qh3 57.Be5 Be5 58.Qf5 g6 59.Qe5 Qf3 60.d6 Qg4 61.Qe7 Qc8 62.Kb6 Qb8 63.Kc6+-) 55.Qd6 Bf6 56.Ka5 (better 56.Qd7!? Qc1+-) 56...Qd2 57.Kb6 Qd4 58.Kb5 (better 58.Qc5!? Qa4 59.Qc3+-) 58...Qd3+- 59.Kc6 Qc4 60.Kd7 Qa4 61.Qc6 Qb3 (61...Qa3 62.Bc7 Qe7 63.Kc8 Qf8 64.Kb7 Qb4 65.Bb6+-) 62.Bd6 (62.Bc7 Bg5 (62...Qf3? 63.Bd8 Bd8 64.Kd8 Qe4 65.Kc7+-) 63.Bd8 f6+-) 62...Qf3+- 63.Be7 Be7 (63...Qh3 64.Bf6 h5 65.Kc7 hg4 66.Bg7+-) 64.Ke7 Qh3?? (64...Qe4 65.Kf8 Qd4 66.Kf7 Qf4 67.Ke7 e4=) 65.Kf7 (65.Qd7 Qc3 66.Kf7 Qc4 67.Qf5 Kh8 68.Qe5 Qf1 69.Kg6 Qf8 70.d6 Qg8 71.d7 Qh7 72.Kh5 Qg8 73.Qe8 Qe8 74.de8Q Kh7 75.Qf7 Kh8 76.Kg6 h5 77.Qg7) 65...Qf3 (worse 65...Qg4 66.Qe6 Qe4 67.d6 Qf3 68.Ke7+-) 66.Ke8?? (66.Ke7 Qb3 67.d6+-) 66...Qe4= 67.Qe6 Qa4 68.Kf7 Qa7 69.Kf8 Qa8 70.Kf7 ½–½. Kozlov,Mikhail (1810) – Chekletsova,Darya (1635), St Petersburg Russia, Chigorin Memorial, 2017. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.b5 Bb7 5.Nc3 e6 6.d4 cd4 7.Nd4 Nd7 8.Be3 Qc7 9.Nde2 Ngf6 10.f3 Rc8 11.g4 (11.Bf4 Be7+=) 11...h6 (11...d5 12.ed5 Nd5 13.Nd5 Bd5 14.Bg2-+) 12.Bg2 d5 13.ed5 Bb4 14.Bd2 Nd5 15.Nd5 Bd2 16.Qd2 Bd5 17.Nd4 Qc3 (17...0-0 18.0-0-/+) 18.Qc3+= Rc3 19.Kd2 Rc4 20.c3 Ne5 21.Rhe1 (21.Rhg1 Rc5 22.f4 Nc4 23.Kd3 Na3+=) 21...Ng6 (21...Ng4!? 22.Nf5 Rc5 (22...Nh2?! 23.Nd6 Ke7 24.Nc4 Bc4 25.Rh1=) 23.fg4 Bg2-/+) 22.Bf1= Rc5 23.a4 Kd7 24.a5 Rhc8 25.ab6 ab6 26.Re3 Bb7 27.Ra7 R8c7 28.c4 Kc8 29.Nb3 Re5 30.f4 (30.Nd4!?=) 30...Rd7-/+ 31.Bd3 Re3 32.Ke3 Nf4 33.Bc2 g5 34.Ra1 Ng2 35.Kf2 Rc7 36.Bd3 Nf4 37.Bf1 Kd8 38.Nd4 Rd7 39.Ke3 Rc7 40.Ra2 Kc8 41.h4 Rc5 42.hg5 hg5 43.Rh2 Re5 44.Kf2 Ng6 45.Rh7 Re4 46.Ne2 Ne5 47.c5 bc5 48.b6 Ng4 49.Kg3 Ne3 50.Rf7 Nf1 51.Kf2 Ba6 52.Nc3 Rf4 53.Rf4 gf4 54.Kf3 e5 55.Ke4 Nd2 56.Ke5 f3 57.Nd1 Bb7 58.Nf2 Ne4! 59.Ng4 f2 60.Ne3 Nd2 61.Kd6 c4 62.Kc5 c3 0–1. Schepel,K – Weber,M, Ol, Thessaloniki, 1988. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.b5 e5 5.Bc4 Be7?? 6.Nc3 (better 6.Bd5+-) 6...Nf6= 7.d3 Be6 8.h3 (8.Be6 fe6 9.Ng5 Qc8+/-) 8...0-0= 9.Bg5 a6 10.a4 (10.Be6 fe6 11.0-0 ab5 12.Nb5 Nc6=) 10...ab5 (10...Ne4!? 11.Ne4 d5 12.Be7 Qe7 13.Bd5 Bd5=+) 11.ab5= Nbd7 12.0-0 Qc7 13.Qb1 Rfe8 (13...Bc4 14.dc4 Ra1 15.Qa1+=) 14.Qb3 Nf8 (14...Bc4 15.Qc4 Ra5 16.Bd2+=) 15.Bf6 Bf6 16.Bd5 (16.Ra6 Ra7+/-) 16...Ra7 17.Ra6 Bc8? (better 17...Rea8 18.Qa3 Bc8 19.Ba8 Ba6+/-) 18.Bf7!+- Qf7 19.Ra7 Qb3 20.cb3 Be6 21.Nd2 Rb8 22.Nc4 Bc4 (22...Ng6+-) 23.bc4 Ne6 24.Rfa1 Nf4 25.Ra8 Ra8 26.Ra8 Kf7 27.Nd5 Nd3 28.Nb6 Nb4 (28...Bh4+-) 29.Nd5 Nd5 30.ed5 e4 31.b6 e3 32.fe3 Bd4 33.ed4 cd4 34.b7 (34.b7 d3 35.b8Q Kg6 36.Qd6 Kf5 37.Qe6 Kg5 38.Qg4 Kh6 39.Rg8 d2 40.Qg7 Kh5 41.Qh7) 1-0. Arifars17 (2465) - Akbar2001 (2440), Latihan Bersama Anggota PCO, 2020. (=1.e4 c5 2.Nf3 d6 3.b4)

4.c4 Nf6 5.Qc2 (5.bc5 bc5 6.Nc3 g6=) 5...e6 (5...cb4 6.a3 b3 7.Qb3 Ne4 8.d4+=) 6.Bb2 (6.b5 Nbd7=) 6...Be7 7.Be2 0-0 (7...cb4 8.a3 Bb7 9.ab4 Be4 10.d3+=) 8.b5 Nbd7 9.0-0 Bb7 10.Nc3 Re8 11.Rad1 a6 12.a4 ab5 13.ab5 (worse is 13.cb5 d5-/+) 13...Qc7 14.Ra1 Rec8 15.Ra8 Ra8 16.Ra1 Qd8 (better is 16...Ra1 17.Ba1 g6=) 17.d4 (better is 17.Ra8 Qa8 18.d3=) 17...Ra1-/+ 18.Ba1 Qa8 19.Bb2 Ne4 20.Bd3 Ndf6 (20...Nc3 21.Bc3 h6 22.Be2-+) 21.Ne2 (better is 21.Na4!? Qa5 22.dc5 dc5 23.Kf1+=) 21...Ng4-+ 22.d5? (better is 22.dc5 dc5 23.Be4 Be4 24.Qb3-+) 22...ed5 23.Be4 de4 24.Nd2 Bf6 (24...Bg5 25.Nf1-+) 25.h3 Bb2 26.Qb2 Ne5 27.Nf4 Qa4 28.Qc3 (28.Qc1 f6-+) 28...Qd1 29.Kh2 (29.Nf1 g5 30.Qg3 f6-+) 29...h6 (better is 29...g5!? 30.Nd5 Bd5 31.cd5-+) 30.Qe3 Qc1 (30...Qc2 31.Nh5-+) 31.Nh5 (31.Ne2 Qc2 32.Qc3 Qc3 33.Nc3 f5-+) 31...Ng6 32.Ng3 Qc2 33.Nge4 Be4 34.Ne4 Qc4 35.g3? Qe6-+ 36.Qd3 Ne5 37.Qd1 d5 38.Nc3 d4 39.Ne4 Qf5 40.f4 Qe4 41.fe5 d3 0–1. Hagen,Thorolf (1655) – Collareta,Giovanni (2095), Helsingor DEN, Politiken Cup, 2014. (=1.e4 c5 2.Nf3+= d6 3.b4 b6)

4.Bc4 e6 5.bc5 bc5 6.0-0 Nc6 7.c3 Nf6= 8.Qa4 (8.Na3 Rb8= (8...Ne4? 9.Bb5 Bd7 10.Qa4+-)) 8...Bd7 9.Re1 (9.Na3 Be7=+ (9...Ne4? 10.Bb5+-)) 9...a6 (9...Ne5!? 10.Qa6 Nc4 11.Qc4 Rb8-/+) 10.Qc2 (10.Ba6?? Ne5 11.Qd1 Ra6 12.Ne5 de5-+) 10...Qc7 11.d4 cd4 12.cd4 Nb4 13.Qe2 Be7 (13...d5 14.ed5 Nbd5 15.Bg5=) 14.a3 (14.Bf4 0-0=) 14...d5 (14...Rc8 15.ab4 Qc4 16.Qc4 Rc4 17.Ra6 Ne4 18.Ra8 Bd8 19.b5=) 15.ed5 Nbd5 16.Ba6 (16.Bd2 0-0=) 16...0-0=+ 17.Bg5 (17.Ne5 Rfb8=+) 17...Qb6 (17...h6 18.Bd2=+) 18.Bd3 h6 (18...Rfc8 19.Nbd2=) 19.Bf6= Nf6 (19...Bf6 20.Qe4 g6 21.Nbd2=) 20.Rd1 (20.Nbd2 A) worse 20...Ba3 21.Nc4 Qb3 22.Nfe5+- (worse 22.Na3 Ra3 23.Qe3 Kh8+=); B) 20...Ra3? 21.Nc4 Qb3 22.Na3 Ba3 23.Qe3+-; C) 20...Rfc8=) 20...Ba4 (20...Nd5!?=+) 21.Rc1= Bc6 22.Rd1 (22.Nbd2 Rfc8=) 22...Kh8 (22...Nd5 23.Qe4 g6 24.Ne5=+) 23.Bc4 (23.Nbd2 A) 23...Ra3? 24.Nc4 Bf3 25.Qf3 (25.Nb6?! Be2 26.Be2 Ra1 27.Ra1 Kg8=; 25.gf3?! Qb3 26.Na3 Ba3+-) 25...Rd3 26.Qd3+-; B) 23...Nd5 24.Nc4 Qc7=) 23...Rfc8 (23...Bf3 24.Qf3 Rac8 25.Nd2=+) 24.Ne5= Be8 25.a4 Bd6 (worse 25...Ba4 26.Nf7 Kg8 27.Ra4 Ra4 28.Be6+=) 26.Nc3 (26.Nd2 Qd4 (26...Ba4? 27.Nf7 Kh7 28.Re1+-) 27.Ndf3 Qc5=) 26...Qb4 Increasing the pressure on the isolated pawn on a4 27.Nb5 Be5 28.de5 Rc4 (28...Qc4 29.Qc4 Rc4 30.ef6 gf6 31.h3=) 29.ef6 Re4? (29...Bb5!? 30.ab5 Ra1 31.fg7 Kg8 32.Ra1 Qb5=) 30.fg7 (30.Qd3 Bb5 31.ab5 Ra1 32.fg7 Kg7 33.Ra1 Rd4+-) 30...Kg7 31.Qd3 Ra4 (31...Ra4 32.Rab1 Qa5+-). Nunes,Moezio Correia (1820) – Santos,Antonio Inacio Dos (2080), 55th Championship Cearense de Xadrez Ab, 2013. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.Bc4 Nf6 5.Bb2 e6 (5...cb4? 6.Bf6 Bb7 7.Bb2+-; 5...Ne4?? 6.Bd5+-) 6.e5 de5 7.Ne5 (worse is 7.Be5 cb4 8.0-0 Nc6-/+) 7...Bb7 (7...cb4? 8.Qf3 Bd6 9.Qa8+-) 8.Qe2 Qc7 9.bc5 Bc5 10.d4 (10.Bb5 Kf8 11.0-0 a6=) 10...Bb4 (10...Bg2? 11.Rg1 Bb4 12.c3+-) 11.Nd2 (11.c3 Bd6= (11...Bg2? 12.Rg1+-)) 11...0-0 (11...Ne4 12.Bb5 Kd8 13.c3 Nc3 14.Bc3 Bc3 15.Rc1 Bd2 16.Qd2=) 12.0-0+= Nc6 13.c3 Bd6 14.f4 Rae8 15.Rae1 Kh8 16.Ndf3 Re7 17.Bb3 Na5 18.Bc2 Bd5 19.Ng5 g6 20.Bd3 Kg8 (20...Ba2!? 21.c4 Bb4=) 21.c4+= Ba8 22.Rc1 Rd8 (22...h6 23.Ngf3+=) 23.Qe3 (23.c5!? bc5 24.Nef7 Rf7 25.Ne6+/-) 23...Qb7+= 24.Qh3 h6 25.Ngf7 Rf7 26.Nf7 Kf7 27.d5 (27.Rce1!? Re8 28.Bc3+/-) 27...ed5= 28.Qh6 Rg8 29.f5 dc4 30.fg6 Ke8 31.Rfe1 Kd7? (better is 31...Be7 32.Bf1 Ne4+=) 32.Qh3+- Kc7 33.Bf6 Kb8? 34.Be4 Qc7 35.Ba8 Ka8 36.Qh7 Qb8 37.g7 Bf4 38.Qe4 Nb7 39.Be5 Be5 40.Qe5 Qe5 41.Re5 Nc5 42.Re7 c3 43.Rf1 c2 44.Rf8 (44.Rf8 Rf8 45.gf8Q) 1–0. Mista,Aleksander – Kunin,Vitaly L, Cup G.Kasparov, Moscow (Russia), 1997. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.bc5 bc5 5.Nc3 Nf6 6.Rb1 g6 7.Bb5 Bd7 8.Qe2 (8.e5!? de5 9.Ne5+-) 8...a6+- 9.Bc4 Bg7 10.e5 de5 11.Ne5 0-0 12.0-0 (12.Qf3!? Ra7 13.0-0+-) 12...Nc6+= 13.Nc6 (13.Nd7 Nd7 14.Ba3 Nd4=) 13...Bc6= 14.Ba6 (14.Re1 e6=) 14...Qd4 (14...Nd5 15.Bb5 Nc3 16.dc3=) 15.Bb7 (15.Bb5 Bb7+=) 15...Bb7 16.Rb7 e6 17.Bb2 (17.a4 Rfb8 18.Rb5 Ne8=) 17...Rfb8= 18.Rb3 c4 19.Rb8 Rb8 20.Rb1 (20.Ba1 Qf4=) 20...Nd5 (20...Bh6 21.a4=) 21.Nd1 (better 21.Qe1 Nf4 22.g3 Nh3 23.Kg2+=) 21...c3?? (better 21...Qf4 22.g3 Qc7=) 22.Bc3+- Rb1? (better 22...Qa7 23.Rb8 Qb8 24.Bg7 Kg7+-) 23.Bd4 Bd4 24.g3 1–0. Ruggeri,Pietro (2125) – Santoro,Alessandro (2055), Open Porto San Giorgio ITA, 1999. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.bc5 bc5 5.Nc3 Nf6 6.Rb1 g6 7.e5 de5 8.Ne5 Bg7?? (better is 8...Be6+/-) 9.Qf3+- (9.Qf3 Nbd7 10.Nf7 Kf7 11.Qa8+-) 1–0. Zimbeck,D (2205) – Brownscombe,T (2165), North American Open, 2010. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.bc5+= bc5 5.Nc3 g6 6.Bc4 Nf6 (6...Nd7!?+/-) 7.e5+- de5 8.Ne5 Be6 9.Be6 fe6 10.0-0 Bg7 11.Qf3 Nbd7 12.Qc6 Rc8 13.Qe6 Ne5 14.Qe5 0-0 15.Rb1 Qd7 16.d3 Kh8 17.Bb2 Ng4 18.Qe2 Rb8 19.Nd1 Rb2? (19...Bb2 20.Nb2 Qd4 21.h3 (21.Qe7 Rf2 22.Rf2 Qf2 23.Kh1 Qf4-+) 21...Rb2 22.hg4+/- (22.Qg4?! Qg4 23.hg4 Rc2=)) 20.Rb2 (20.Nb2 Nf2 21.Nc4 Ng4 22.Rf8 Bf8+-) 20...Qd4? (better is 20...Bb2 21.Nb2 Qd4+-) 21.c3 (21.Qe7?! Qf4 22.g3 Qh6+-) 21...Qf4 22.g3 Qa4 (22...Qf5 23.Qe7 Ne5 24.f4+-) 23.Rb7 (23.Qe7!? Qa6 24.Rb7 Rg8+-) 23...Ne5 24.f4 Nc6 25.Qe4 Qa6 26.Rc7 Rc8 27.Qc4 1–0. Adamski,Andrzej (2265) – Zaczek,Jonathon (2115), 110th YMCA Golden Autumn Poland, 2012. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.bc5 dc5 5.Bc4 Nc6 6.0-0 e6 7.Bb2 Nf6 8.d4 (8.Nc3!?+=) 8...Ne4+= 9.d5 Ne7 (better is 9...Na5 10.Bb5 Bd7 11.Bd7 Qd7 12.de6 Qe6=) 10.Ne5+- a6 (10...Nd5?? 11.Bb5 Bd7 12.Bd7 Ke7 13.Nc6 Kd7 14.Nd8 Rd8 15.c4+-) 11.Nf7 Kf7 12.de6 (12.de6 Ke8 13.Qh5 Ng6 14.Bd5+-) 1–0. Kapitaniak – Zawadzki, corr, 1978. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.bc5 dc5 5.Bc4 e6 6.0-0 Nf6 7.Re1 Be7 8.d3 0-0 9.a4 Nc6 10.Bb2 Bb7 11.Nbd2 Qc7 12.Qe2 Rfe8 13.Bb3 Rad8 14.Nc4 h6 15.Rad1 a6 16.c3 b5 17.ab5 ab5 18.Ne3 b4 (18...Bd6 19.Nf1 e5 20.Ne3=) 19.cb4+= Nb4 20.Nc4 Ba6 21.Nfe5 Rf8 22.f4 Nd7 (better 22...Rb8!?+=) 23.Nd7+- Rd7 24.Qg4 White prepares f5 24...g6 (24...Rd4!?+-) 25.Ne5+- Kh7 26.f5 g5 (26...gf5 27.ef5 Rg8+-) 27.fe6 f5 (27...fe6 28.Qh5 Qe5 29.Be5 c4+-) 28.ef5 (better 28.Qh5!? Qe5 29.Be5 Rdd8 30.ef5 Rf5+-) 28...Rd3 (28...Rd4 29.Bd4 Bd6 30.Bc3 Nd3 31.Nd3+-) 29.Nd3 (29.Qh5 Rf6 30.Ng4 Rd4 31.Nf6 Bf6 32.Qg6 Kh8 33.Qh6 Qh7 34.Qf8 Qg8 35.e7 Qf8 36.ef8Q Kh7 37.Qg8 Kh6 38.Qg6) 29...Nd3 30.Qe4 (better 30.f6 Qf4 31.fe7+-) 30...Qf4 31.Qf4 (31.f6 Qe4 32.Re4 Nb2 33.fe7 Re8+-) 31...gf4 32.f6! f3 (32...Bf6 33.e7 Passed pawn) 33.Rd3 (33.Rf1 Rf6 34.Bf6 Bf6 35.Rf3 Bd4 36.Kh1 Ne5+-) 33...Bd3 34.gf3 Bf6 (34...c4 35.Ba4 Bc5 36.Kh1+-) 35.Bf6 (better 35.e7!? Be7 36.Re7 Kg6 37.Rg7 Kf5+-) 35...Rf6 36.e7 Bb5 37.e8Q Be8 38.Re8 (better 38.Re7!? Kg6 39.Bc2 Kg5 40.Re8 Rf3 41.Re5 Kf4 42.Rc5 Ra3+-) 38...Rf3 39.Bd5 Ra3 40.Re6 Kg7 41.Rc6 Rc3 42.Kg2 Rc1 43.Kg3 Rg1 44.Kf4 Rf1 45.Ke5 Rf2 46.h3 Re2 47.Be4 Re3 48.Rg6 Kf7 49.Rh6 Re1 (49...Ke7 50.h4+-) 50.Rh7 Kg8 51.Rc7 Rc1 (51...Ra1 52.h4+-) 52.Kf6 Rf1 53.Bf5 (53.Bf5 Rf5 54.Kf5 Kf8 55.Rc5 Kg7 56.Rc7 Kg8 57.Kf6 Kh8 58.Kg6 Kg8 59.Rc8) 1–0. Savov,Ilko Ananiev (1905) – Doykov,Stoycho (1780), 32nd Teteven Open (8), 2018. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

4.d4 cb4 5.a3 (5.Bd2 Nf6=) 5...Nf6 (5...ba3 6.Bd3=) 6.Bd3 (6.ab4 Ne4 7.Bd3 d5=) 6...ba3 7.Qe2 (7.e5 Ng8=) 7...e6 (7...Nc6 8.Bb5 Bd7 9.0-0=) 8.Na3 (8.Ba3 Be7=) 8...Be7=+ 9.h4 (9.0-0 Nc6=+) 9...Bb7 10.c4 (10.0-0 0-0-/+) 10...Nbd7 (10...d5 11.e5 Ng4 12.Bg5=+) 11.Bb2 (11.0-0 0-0-/+) 11...a6 12.Nb1 Qc7 (12...0-0 13.Nc3-/+) 13.Nbd2 (13.0-0 0-0-/+) 13...e5 (13...Nh5 14.Qe3-/+) 14.Rc1 (14.h5 h6=+) 14...0-0 15.h5 Rfe8 (15...h6 16.Kf1-/+) 16.h6 g6 17.Rh3 (17.Kf1 ed4 18.Bd4 Nc5-/+) 17...Bf8 (17...ed4 18.Nd4 Nc5 19.Kd1-+) 18.Ng5 (18.Kd1 Nh5 19.Rh4 Nf4-/+) 18...Qd8 (18...ed4 19.Kd1-+) 19.Bb1 (19.Rd1 ed4 20.Bd4 d5-+) 19...a5 (19...ed4 20.Qd3-+) 20.Ba2 (20.Kf1 a4-/+) 20...ed4-+ 21.Bd4 d5 22.cd5 (22.cd5 Bd5; 22.ed5 Re2 Pinning (22...Re2 Deflection)) 22...Bd5 23.Bd5? (23.Bd5 Nd5 Combination; 23.ed5 Re2 Pinning (23...Re2 Deflection)) 23...Nd5-+ 24.Be3 (24.Ndf3 Nf4 25.Qc4 A) 25...Ng2? 26.Kf1 Qe7 27.Nh7+- (27.Kg2?! Rac8 28.Qf1 Nc5+-); B) 25...Qe7-+) 24...Ne3 25.Qe3 Ne5 (25...b5 26.Kf1-+) 26.f4 Ng4 (26...Nd7 27.Qb3 Re7 28.f5-+) 27.Qb3 Ra7 28.Rd3 Qf6 29.Rf3 (29.g3 Bc5-+) 29...Bh6 30.Qa4 Rf8 (30...Rd8 31.Rc6 Qe7 32.Rfc3-+) 31.Rc6 Qd8 32.Qb5 (32.Rg3 Qd7 33.Ndf3 Rc7 34.Rg6 hg6 35.Qd7 Rd7 36.Rg4 a4-+) 32...Rd7 (better 32...Bg5 33.fg5 Rd7-+) 33.Nc4? (33.Rc2 Bg5 34.fg5 Re8-+) 33...Rd1 (33...Rd4 34.Ne3 Bg5 35.Ng4 Re4 36.Kf2 Qd4 37.Kg3 Bf4 38.Kh3-+) 34.Ke2 Rd4 35.e5 (35.Rc3 Bg5 36.Qg5 Re4 37.Ne3 Qg5 38.fg5-+) 35...Bg5 36.fg5 (36.Rd6 Rd6 37.Nd6 Be7-+) 36...Re4 37.Ne3 Qg5 (37...Qg5 38.Rc3 Re5 39.Qb6 Rfe8-+) 0–1. Sorenfors,Per (2010) – Bouaziz,Nejib (2140), Lund SWE, 1998. (=1.e4 c5 2.Nf3 d6 3.b4 b6)

3.Nf3 Nc6

4.Bb2 Nb4 5.d4 cd4 6.Nd4 Bd7 7.Bc4 Nc6 8.Qf3 (8.0-0 Qb6 9.Nb3 Rc8+=) 8...Nf6 (better is 8...Ne5 9.Qb3 Nc4 10.Qc4 e5-/+) 9.0-0? (9.Nc6 bc6 10.Bf6 gf6+=) 9...Qb6 (better is 9...Ne5!? 10.Qb3 Nc4 11.Qc4 Qb6-+) 10.Qb3 Qb3 (10...Nd4?! 11.Bf7 Kd8 12.Qb6 ab6 13.Bd4=) 11.ab3 (11.cb3? Nd4 12.Bd4 e5-+) 11...Ne4 12.Nb5 Kd8 13.Bf7 a6 14.Bd5 Nf6 15.Bf3 Rb8 16.Nd4 Ne5 17.Nd2 g6 (17...Nf3 18.N4f3 Rc8 19.c4-/+) 18.Ne4 Rg8 (better is 18...Bg7!?+=) 19.Nf6+= ef6 20.Rfd1 (better is 20.Bd5 Rg7 21.f4+/-) 20...Nf3+= 21.Nf3 Be7 22.Rd2 Rf8 (22...Bg4 23.Nd4+=) 23.Ba3= Rc8 24.Rad1 Rf7 25.c4 Rc7 (25...Bg4 26.Bd6 Bf3 27.gf3 Bd6 28.Rd6 Ke8 29.R1d5+=) 26.Bd6+= Bd6 27.Rd6 Kc8 28.Ne1 (28.h3 Rc6+=) 28...Rc6= 29.Nc2 Re7 30.h3 f5 31.Nb4 Rd6 32.Rd6 Re1 33.Kh2 Re2 34.Nd5 Bc6 35.Kg3 Rb2+= 36.Rf6 Rb3-/+ 37.Kh2 Bd5-+ 38.cd5 Rd3 39.d6 Kd7 40.Rf7 Kc6 41.Rc7 Kd6 42.Rb7-/+ a5 43.Rh7 Kc6 44.Rh6 Rd6 45.Rh4 Kb5 46.g4 fg4 47.Rg4 a4 48.Rg1 Ra6 49.h4 a3 50.Ra1 a2 51.f4 Kb4 52.h5 gh5 53.f5 Kb3 54.f6 Kb2 55.f7 Rf6 56.Ra2 Ka2 57.f8Q Rf8 58.Kg3 Rh8 59.Kh4 Kb3 60.Kh3 h4 0–1. Lang,Jan Hendrik – Wolff,Cascal, GER–ch U25 Willingen, 2007. (=1.e4 c5 2.b4 d6)

4.b5 Nb8 5.d4 cd4 (5...Nf6 6.Nc3+=) 6.Qd4 ½–½. Dakic,Dejan (2060) – Maksimovic,Marko (2170), Belgrade Premier League, 2017. (=1.e4 c5 2.Nf3 d6 3.b4 Nc6)

4.b5 Nd4 5.Nd4 cd4 6.Bb2 Nf6 7.Bc4 Ne4 8.Bf7 (better is 8.Qh5 e6 9.Bd4=) 8...Kf7-/+ 9.Qh5 Ke6 10.Qg4 Kd5 11.Qf3 e5 (11...Ke5 12.0-0 d5 13.d3+=) 12.d3 (better is 12.0-0 Qf6 13.c4 Kc5 14.Qe4=) 12...Qh4?? (better is 12...Kc5 13.de4 Qf6+=) 13.Qf7+/- Kc5 14.Qc7 Kb5?? (14...Kb4 15.0-0 Ka4 16.de4 Qe7 (worse is 16...Qe4 17.Bc3 Qg2 18.Kg2 Bh3 19.Kh3 dc3 20.Nc3 Ka3 21.Rfb1 d5 22.Qa5; 16...Kb5?? 17.a4 Ka6 18.Qc4 Kb6 19.a5) 17.Qc4 Ka5+-) 15.a4 Ka6 16.Qc4 (16.Qc4 Kb6 17.a5) 1–0. Okus,M (2010) – Onur,Cem (1735), Turkish Cup, 2015. (=1.e4 c5 2.b4 d6)

3.Nf3 Nd7

4.b5 Ngf6= 5.Nc3 (5.Bd3 Qc7=) 5...g6 6.Bc4 (6.Bd3 Bg7=) 6...Bg7 7.0-0 (7.Qe2 Nb6 8.Bb3 Nh5-/+) 7...Nb6 (7...Ne4 8.Bb2-/+) 8.Be2 (8.Qe2 Nc4 9.Qc4 a6=+) 8...Bg4 (better 8...Ne4 9.Bb2 Nc3 10.Bc3 e5-+) 9.h3= Bf3 10.Bf3 (10.gf3 Nh5 11.Kh2 Be5 12.Kg1 e6-+) 10...e5 (10...0-0!?=) 11.a4 (11.Qe2 0-0 12.a4 Re8+-) 11...0-0 12.a5 (12.Qe2 Re8+-) 12...Nbd7 13.d3 h6 (13...a6 14.b6+-) 14.Ra4 (14.a6!? b6+-) 14...Re8+- 15.g3 (15.a6 b6+-) 15...Nf8+= 16.Bg2 (16.a6 ba6 17.Ra6 Ne6+=) 16...Ne6 (16...a6 17.b6=) 17.Be3 (17.a6 b6+=) 17...Qd7= 18.Qd2 Kh7 (18...Nd4 19.a6=) 19.Rb1 White plans b6 (19.a6 b6+=) 19...Nd4 20.Rc4 (20.a6 b6+=) 20...Rac8 (20...Kg8 21.Rb2=) 21.Kh2 (21.Qc1 Rb8+=) 21...Nh5 (21...Ra8 22.Ra4=) 22.b6 (22.Ra4=) 22...a6 (22...ab6!? 23.Rb6 Nf6+=) 23.Nd5+- Rf8 (23...Nb5 24.Rb3+-) 24.g4 (24.c3!? Nb5 25.Ra1+-) 24...Nf4+= 25.Bf4 (25.Nf4!? ef4 26.Bf4+=) 25...ef4= 26.Qf4 (better 26.Nf4!? Nb5 27.Rb3=) 26...f5-/+ 27.Qg3 (27.Kh1 fg4 28.Qg3 Be5 29.Qg4 Qg4 30.hg4 Rf2=+) 27...fg4 28.Qg4 (28.Kh1 Nc6 29.hg4 Na5-/+) 28...Qg4 29.hg4 Rf2 30.c3 Ne2 (30...Nc6 31.Ra4-+) 31.d4 (31.Kh3 Rcf8 32.d4 cd4 33.cd4 Bd4 (33...Nd4?! 34.Rc7 R2f7 35.g5-/+) 34.Rc7 Kh8-+) 31...Rcf8=+ 32.Rd1?? (32.Kh3=+) 32...R8f7 (better 32...R8f3 33.Rf1 Rf1 34.Bf1 Rf1-+) 33.e5? (better 33.Kh3=) 33...cd4-/+ 34.cd4 de5 35.Rc7 (35.de5!? Be5 36.Kh1 Ng3 37.Kg1 Ra2-+) 35...ed4-+ (35...Nd4?! 36.Kg3=+) 36.Rf7 Rf7 37.Nc7 Be5 38.Kh1 Bc7 39.bc7 (39.Bd5 Re7 40.bc7 Rc7-+) 39...Rc7 40.Bf3 Re7 (40...Rc2 41.Bb7 Rc1 42.Rc1 Nc1 43.Ba6-/+) 41.Rd2 Nc3 (41...Nf4 42.Rd4 Ne6 43.Rd6-+) 42.Rd4 Nb5 (42...Kg7 43.Kg1-+) 43.Rd8 Kg7 44.Rh8?? (44.Kg2 Kf6-+) 44...Nd6 (44...Kh8 45.Kg2-+) 45.Kg2?? (45.Rb8 Kf6-+) 45...Kf6 (better 45...Kh8 46.Kg3 Re5-+) 46.Kg3 (46.Rh6 Nc4-+) 46...Kg5 47.Rd8 Ne4 48.Kg2 Nf6 (48...Re5 49.Rd7-+) 49.Kg3 (49.Rd6 Ng4 50.Rb6 Re5 51.Bb7 Ra5 52.Ba6 h5-+) 49...Re5 50.Bb7 Ra5 51.Rd6? (51.Bf3-+) 51...Ra3 (51...Ng4?! 52.Ra6 Ra6 53.Ba6-+) 52.Kg2 (52.Kf2 Rb3 53.Ba8 a5-+) 52...a5 53.Bf3 (53.Rc6 Ng4 54.Rc5 Kh4-+) 53...Rc3 (53...Ng4!? 54.Rd5 Kh4 55.Rd4 Ra2 56.Kg1-+) 54.Ra6 (54.Rd4 Kh4-+) 54...Rc5 55.Kg3 h5 (better 55...Nd7!? 56.Ra8-+) 56.gh5 Nh5 (56...gh5 57.Ra8-+) 57.Kf2 Re5 (57...Kf5 58.Ke3 Rc3 59.Kf2-+) 58.Bd1 Nf4 (58...Ng7 59.Bc2 Nf5 60.Bd3-+) 59.Kf3 (59.Bc2 Re2 60.Kf3 Rc2 61.Ra5 Kh4 62.Kf4 g5 63.Ke4 g4-+) 59...Rc5 (59...Ne6 60.Rd6-+) 60.Ke4-/+ Rb5 61.Bc2 (61.Rc6 Nh5-/+) 61...Kg4-+ 62.Kd4 (62.Bd1 Kg3-+) 62...g5 63.Kc4 Re5 64.Kd4 Rd5 65.Ke4 Kg3 (65...Rb5 66.Rc6-+) 66.Bb3-/+ Rb5 67.Bc4 Rb4 68.Kd4 g4 (68...Ra4 69.Kc5-/+) 69.Ra5 Rb2 (69...Kf3!? 70.Ra3 Kg2-/+) 70.Ke4=+ Rf2 (70...Ng6 71.Be6=) 71.Ba6 (71.Ra2 Rf3=+) 71...Kh2 (71...Kh4 72.Ra1=+) 72.Bb7 (72.Ke3 g3 73.Bb7 Ng2 74.Kd3 Kh3=+) 72...g3 73.Ke3 Ng2 74.Kd3 (74.Kd4 Kh3=+) 74...Nf4 75.Ke3 ½–½. Pfleger,Michael (2270) – Marten,Gero (2045), Bad Homburg GER, Rhein Main Open, 2008. (=1.e4 c5 2.Nf3 d6 3.b4 Nd7)

4.Bc4 cb4 5.a3 Qa5 6.Bb2=.

4.Bc4 Ngf6 5.d3 (5.bc5 Nc5 6.Nc3 e6+=) 5...e6 (5...cb4 6.0-0 Qa5 7.Bd2=) 6.0-0 Be7 7.bc5 Nc5 8.Be3 Ncd7 (8...0-0 9.Bc5 dc5 10.Nc3=) 9.Nbd2 (9.Nc3 0-0+=) 9...0-0 10.Nd4 (10.Qe2 d5 11.Bb3 Qc7=) 10...Ne5 11.Bb3 (11.h3 d5 12.Bb3 de4 13.Ne4 Bd7=) 11...d5 (11...Neg4 12.Qf3=) 12.N4f3 (12.h3 de4 13.Ne4 Bd7=) 12...Nf3 (12...Nc6 13.Bf4=) 13.Qf3 (worse 13.gf3 d4 14.Bf4 Nh5-/+) 13...d4 14.Bf4 Nd7 (14...b6 15.h3=) 15.Qg3 (15.e5 Nc5+=) 15...Bh4= 16.Qg4 e5 17.Bg3 Bf6 18.Qe2 Nc5 (18...g6 19.Rab1=) 19.Nc4 Nb3 (19...Re8 20.f4 ef4 21.Bf4+=) 20.ab3+= Re8 21.Qd2 (21.Ra5!?+=) 21...b5= 22.Na5 Bd7 (22...Qb6 23.b4=) 23.f4 Qc7 (23...ef4 24.Qf4 h5 25.Nb7=) 24.Ra2 (24.b4!? ef4 25.Bf4+=) 24...Rac8 25.Qf2 Rf8 26.h3 (26.fe5 Be5 27.Be5 Qe5=) 26...Be6=+ 27.f5 Bd7 28.Bh4 Qd8 (28...Bh4!? 29.Qh4 f6=+) 29.Bf6+= Qf6 30.Qd2 Rc7 31.b4 Rfc8 32.Nb3 g6 (32...h5 33.Nc5+=) 33.g4 (33.Nc5!?+-) 33...gf5 34.gf5 Kh8 35.Kh2 (35.Nc5 Rg8 36.Kh2 Bc8+=) 35...Rg8 (35...Be6 36.Rg1 Bb3 37.cb3=) 36.Qf2 Qg5 (36...Bc8 37.Raa1+=) 37.Nc5 Bc8 38.Raa1 Qf6 (38...Qh6!?=) 39.Rg1+= Qh6?? (better 39...Rg1 40.Rg1 Re7+-) 40.Rg8+- Kg8 41.Qg3 Qg7 (41...Kf8 42.Qe5 Qb6 43.f6+-) 42.Qh4 (42.Qh4 f6 43.Rg1+-) 1–0. Krstic,Slobodan (2080) – Pipitone,Antonio (2015), 1nd WchT Seniors, 2004. (=1.e4 c5 2.Nf3 d6 3.b4 Nd7)

4.bc5 Nc5 5.Nc3 Nf6 6.Bb5 Bd7+=.

4.d3 cb4 5.a3=.

4.d3 e5 5.a3+= Ngf6 6.Bg5 (6.Nc3!?+=) 6...Be7 7.c3 0-0 8.b5? (8.Nbd2!?+=) 8...Qa5 9.a4 a6 10.ba6 ba6 11.Qc2 Bb7 12.Nh4 g6 13.Be2 (13.Nd2 Rfe8-/+) 13...d5 (13...c4 14.Nd2 cd3 15.Bd3-+) 14.0-0 (14.ed5 Nd5 15.Be7 Ne7+=) 14...de4 15.Bh6? (15.Nd2!? ed3 16.Qd3-/+) 15...ed3 (15...Rfb8 16.de4 Be4 17.Qd2-+) 16.Bd3 (16.Qd3 c4! 17.Qh3 Rfd8-+) 16...e4 17.Bf8 ed3 18.Qb3 Bd5 19.c4 Bf8 20.cd5 Ne5 21.f4?? c4 22.Qc3 Qc5 23.Kh1 Neg4 24.h3?? Ne4 25.Qe1 Ngf2 26.Kh2 Bg7 27.Ra2 Bd4 28.Nd2 Qd5 29.Ne4 Qe4 30.Qe4 Ne4 31.Nf3 Bg7 32.Nd2 f5?? 33.Nc4-/+ Rc8 34.Ne3 Bd4 35.Nd5 Rd8 36.Ne7-/+ Kf7 37.Nc6 Rd6 38.Nd4 Rd4 39.Rb2 d2 40.Rd1 Ke6 41.g3 Kd5-+ 42.Rc2 Rd3 43.g4 Kd4 44.gf5 gf5 45.Kg2 Ke3 46.Ra2 Nc3 (46...Nc3 47.Raa1 Nd1 48.Rd1 Ke2 49.Ra1 d1Q 50.Rd1 Kd1 51.Kf2 h5 52.h4 Ra3 53.Kg1 Ke2 54.Kg2 Ra4 55.Kh3 Kf3 56.Kh2 Ra1 57.Kh3 Rh1) 0–1. Nunes,Moezio Correia (1935) – Souza,Gutemberg Magalhaes (1815), Fortaleza BRA, Borges Mem, 2012. (=1.e4 c5 2.Nf3 d6 3.b4)

4.d4 cb4 5.Bd3=.

4.d4 cd4 5.Qd4 Ngf6 6.Nc3 e5 7.Qd2 Be7 8.Bc4 Nb6 9.Bb3 (9.Bb5 Bd7 10.Bd7 Qd7=) 9...Bd7 (9...d5!? 10.a3 d4=) 10.0-0 Rc8 11.Bb2 (11.Qd3 Qc7 12.Nb5 Bb5 13.Qb5 Qc6 14.Qc6 bc6=) 11...Nc4 12.Qc1 (12.Bc4 Rc4 13.a3 Qc7=) 12...b5 (12...Qc7 13.Nd5 Nd5 14.ed5=+) 13.Re1 Qc7 14.Bc4 Qc4 15.a3 0-0 16.h3 h6 17.Qe3 Rc7 18.Rad1 Rfc8 19.Nh2 Qe6 20.Nf1 Nh5 21.Ng3 Bg5 22.Qf3 Ng3 23.Qg3 Bf4 (23...Rc4 24.Rd3=) 24.Qd3 Be8 25.Re2 Qc4 (25...Rc4 26.Nd5=) 26.Qf3 (26.Nd5 Qd3 27.cd3 Rc2 28.Nf4 ef4 29.Rc2 Rc2=) 26...Qe6= 27.h4 h5 28.Rd3 f5 (28...Qh6!? 29.Nd5 Bd7 30.Ne7 Kh7 31.Nc8 Rc8=) 29.ef5 Qf5 30.Qd5?? (better 30.Rd6!? Qf7 31.Nd5 Rc2 32.Nf4 Re2 33.Qe2 ef4 34.Re6+-) 30...Kh8 (30...Bf7 31.Qf3 Bc4-+) 31.g3 (31.Nb5 Bb5 32.Qb5 Rc2-+) 31...Bc6 32.Qb3 Qh3 33.Nd5 Bd5?? (better 33...Bh6-/+) 34.Rd5+- (worse 34.Qd5 Qg4 35.Rf3 Rc2 36.Rc2 Rc2=+) 34...Rc4 (34...Qg4 35.Qd3 Rc4 36.Rb5+- (36.Rd6?! e4 37.Rd8 Rd8 38.Qd8 Kh7=)) 35.Qd3 (better 35.Qf3!? R8c6 36.Qh5 Bh6 37.Qg6+-) 35...Qg4+- 36.Rd6 (36.Rb5 R4c7 37.Rd5+-) 36...e4= 37.Rd8 Rd8 38.Qd8 Kh7 39.Qe7 (39.Qd1 Bh6=) 39...Bh6 40.Re1 Rc2 (40...e3!? 41.Qe5 Rc2-+) 41.Bd4+= (41.Re4 Qf3 42.Rf4 Qd5=) 41...Ra2 1–0. Heiden,Markus – Gabor,Hartmut, 50st Schleswig Holstein–ch Cand–B, 1995. (=1.e4 c5 2.Nf3 d6 3.b4 Nd7)

4.Be2 Ngf6 5.bc5 Ne4 (5...Nc5 6.0-0=) 6.cd6+= Qb6 (6...e6!?+=) 7.0-0+- Qd6 8.Bc4 (8.Re1 Qb6 9.d4 e6+-) 8...Qf6 (8...Nb6!? 9.Bb5 Bd7 10.Bd7 Nd7+- (10...Kd7? 11.d3 Nf6 12.Nc3+-)) 9.d4+- Qc6 10.Bb3 g6 (better 10...e6!?+-) 11.Bb2+- Qf6 (11...Qa6 12.Re1 Ndf6 13.Nc3+-) 12.Re1 Nd6 13.Ne5 Bg7 14.Nd2 (better 14.Nc3!? 0-0 15.Nd5+-) 14...0-0+- 15.Ndf3 Nb6 16.g4 (16.Rb1 e6+-) 16...e6? (16...Be6 17.Bc1 Bb3 18.ab3+- (18.cb3?! Qe6=)) 17.g5 (better 17.c4 Nd7 18.Ba3+-) 17...Nf5?? (17...Qf5 18.Ba3 Be5 19.de5+- (19.Ne5?! Qg5 20.Qg4 Qg4 21.Ng4 Rd8=; 19.Re5 Qg4 20.Kh1 Nbc4 21.Bc4 Nc4 22.Bf8 b6-/+)) 18.a4 (better 18.gf6 Bf6 19.c4+-) 18...Qd8+- 19.a5 (19.Ba3 Re8+-) 19...Nd5 (19...Nd7!? 20.Ng4 b5 21.ab6 Qb6+=) 20.c4+- Nf4 (20...Nde7 21.d5+-) 21.Qd2+- Nh5. Ushan,Lochana – Nonis,P A R R, 2nd Negombo Chess Festival – International, 2016. (=1.e4 c5 2.b4 d6 3.Nf3 Nd7)

3.Nf3 Nf6

4.Bb5 Bd7 5.Qe2 (5.Bd7 Nbd7 6.bc5 Ne4 7.cd6 e6=) 5...Bb5 (5...cb4!? 6.Bb2 e6=+) 6.Qb5= Qd7 7.Qe2 (7.Nc3!? cb4 8.Qb4=) 7...cb4=+ 8.d4 e6 9.c4 bc3 10.Nc3 d5 11.Ne5 Qc8 12.Bd2 Be7 13.Rc1 (13.ed5!? ed5 14.Qb5 Nc6 15.Nd5 Nd5 16.Qd5=) 13...Nc6=+ 14.ed5 ed5 (worse 14...Nd4 15.Qd3 Nf5 16.Nb5+-) 15.0-0 Qe6 (15...Nd4!? 16.Qd3 Nc6 17.Nd5 Qd8 18.Ne7 A) 18...Ke7 19.Nc6 bc6 20.Bb4 c5 21.Bc5 Ke6 22.Rfe1 Ne4 23.Qe4 Kf6 24.g4 g5 25.Bd4 Qd4 26.Qd4 Kg6 27.Rc6 f6 28.Qf6; B) 18...Ne7 19.Qb5 Nc6 20.Nc6 bc6 21.Qb4+- (21.Qc6?! Kf8+-); C) 18...Qd3 19.Nd3 Ne7=) 16.Rfe1= 0-0 17.Qd3 (17.Nc6!? bc6 18.Qe6 fe6 19.Re6+-) 17...Nb4 (better 17...Rfe8!?=+) 18.Qb1+= Qa6 19.Nd1 (19.Nd7 Bd6 20.Nf8 Rf8 21.Re3+=) 19...Rfc8?? (19...Qa4 20.Nc3 Qa6 21.Nd7+-) 20.Ne3?? (better 20.Rc8 Rc8 21.Bb4+-) 20...Qa4 (20...Na2?! 21.Rc8 Rc8 22.Qb3+-) 21.Nf5 Bf8 22.Rc8 Rc8 23.Ng7 (23.a3!? Qa3 24.Nh6 gh6 25.Qf5-/+) 23...Ne4 (23...Kg7? 24.Qf5 Be7 25.Qc8+-; 23...Bg7?! 24.Bb4 b6 25.a3=) 24.Nh5 Qc2 (24...Qa2!? 25.Qd1 Qd2 26.Qg4 Ng5-+) 25.Bb4 (25.Be3!?=) 25...Qf2=+ 26.Kh1 Rc2 (26...Bb4 27.Qb4 Rc2 28.Nf4 Qf4 29.Qb5-+) 27.Rg1 (27.Nf4! Rb2 28.Qc1 Qg2 29.Ng2 Nf2 30.Kg1 Nh3 31.Kh1 Nf2 32.Kg1 Nh3 33.Kh1 Nf2=) 27...Bb4-/+ 28.Qb4?? (better 28.h3 Rb2 29.Qc1=+) 28...Qg1!! (28...Qg1 29.Kg1 Rc1 30.Qe1 Re1) 0–1. Janosevic,Dragoljub – Ivkov,Borislav, Belgrade, 1954. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

4.Bb5 Nbd7 5.d3 (5.bc5 a6 (worse is 5...Ne4 6.c6 bc6 7.Bc6 Nf2 8.Bd7 Qd7 9.Kf2+/-) 6.Bd7 Bd7=) 5...a6 (5...cb4 6.0-0=) 6.Ba4 (6.Bd7 Bd7 7.bc5 Qa5 8.c3 dc5=) 6...g6 (6...cb4 7.a3=) 7.Bb2 (7.bc5 Qa5 8.c3 Qc5=) 7...Bg7 (7...cb4 8.Qd2=) 8.0-0 (8.bc5 Qa5 9.c3 dc5=) 8...0-0 (8...cb4 9.c3+=) 9.Nbd2 (9.Bd7 Qd7 10.bc5 Qb5=) 9...Nb6 (9...b5 10.Bb3+=) 10.Bb3 Qc7 (10...cb4 11.h3=) 11.e5 Ne8 (11...Nfd5 12.ed6 ed6 13.Bg7 Kg7 14.bc5 dc5 15.a4+=) 12.ed6 (12.bc5 dc5 13.Qe1 Rb8+=) 12...Nd6 13.Bg7 Kg7 14.Re1 (better is 14.bc5 Qc5 15.Qe2+=) 14...c4?? (better is 14...cb4 was possible 15.a3 ba3=) 15.dc4+- Ndc4? (15...Nf5 16.c5 Nd7+-) 16.Nc4 Nc4 17.Qd4 Kg8 (17...e5 18.Qc4 Qc4 19.Bc4+-) 18.Qc4 Qc4 19.Bc4 e6 20.Rad1 b5 21.Ne5 bc4 22.Nc4 Bb7 23.Rd7 Bd5+/- 24.Nb6 Rad8 25.c4 Rd7 26.Nd7 Rd8 27.Nb6 Bc6 28.h3 Rb8 29.c5 Bd5 30.a4 Rd8?? 31.Rc1 Kg7? 32.c6 Ra8 33.c7 Bb7 34.c8Q Bc8 35.Rc8 Rc8 36.Nc8 (36.Nc8 Kf8 37.b5 ab5 38.a5+-) 1–0. Avdeeva,Viktoriya – Mendivil,Zenia,Wch U10 Girls, 2000. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.Bc4 Ne4 5.d3 Nf6 6.bc5 dc5 7.0-0 e6 8.Nc3 Be7 9.Bb2 0-0 10.Ne2 Nc6 11.Ng3 Na5 12.Bb3 b5 13.Ne5 Bb7 14.Nf7? (better is 14.Re1-/+) 14...Kf7-+ (14...Rf7?! 15.Be6 Qf8 16.Nf5-/+) 15.Bf6 Kf6 (15...Bf6?! 16.Qh5 Kg8 17.Be6 Kh8 18.Bf5-/+; 15...gf6?! 16.Nf5 Rg8 17.Nh6 Kg7 18.Ng8 Qg8 19.Qg4 Kh8 20.Be6 Qg4 21.Bg4-/+) 16.Qg4 Nb3 17.ab3 (17.Nh5 Kf7 18.Qg7 Ke8 19.ab3 Qd5-+) 17...g6 18.Rfe1 Qd5 19.Re4 Kg7 20.c4 (20.Qe6 Bf6 21.Rae1 a5-+) 20...Qd3 21.Re6 Rf7 22.Rd1 (22.cb5 Qd5 (22...Qb5?! 23.Re7 Re7 24.Nf5 Kf8 25.Ne7 Ke7 26.Qh4 Kd6 27.Rd1 Kc7 28.Qh7 Kb6 29.Qg6 Bc6 30.Rd6-/+) 23.Re4 h5-+) 22...Qc2 (22...Qb3?! 23.Re7 Re7 24.Nf5 Kf8 25.Ne7 Qc4 26.Qc4 bc4 27.Nd5-+) 23.Ree1 Qf2 (23...Qf2 24.Kh1 Qg2) 0–1. Libersan,Mattieu (1935) – Cazelais,Marc (2185), Quebec–ch sf, 2003. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.d3 cb4 5.a3 ba3 6.Ba3 g6 7.Nbd2 Bg7 8.d4 0-0 9.Bd3 Nbd7 10.c3 Qc7 11.Qc2 Re8 12.0-0 e5 13.Nc4 (13.Rfe1 d5+=) 13...d5 (13...Ne4!? 14.Rfe1 d5-/+) 14.Bd6 Qc6 (better is 14...Qd8!? 15.Ncd2 de4 16.Ne4 Ne4 17.Be4 ed4 18.cd4 Nf6-/+) 15.ed5+= Nd5 16.Nfe5 (better is 16.de5 Nf4 17.Na5+/-) 16...Ne5+= 17.de5 Nf4 18.f3 Nd3 19.Qd3 Bf5 20.Qd4 Rec8 21.Ne3 Qc3 22.Nf5 gf5 23.Qf4 Rc4 24.Qf5 Qe3 25.Kh1 Rac8 26.Qd7 (26.Rfe1 Qf2 27.e6 fe6 28.Qe6 Kh8 29.Qe8 Re8 30.Re8 Bf8 31.Bf8 Kg8 32.Bc5 Kf7 33.Rf8 Kg7 34.Bf2 Kf8 35.Ra7 Rc2+-) 26...Rc1 (26...Be5!? 27.Rae1 Qd3=) 27.f4 Rf1 28.Rf1 Qc1 29.Kg1 (29.Rg1 Qc6 30.Qg4 b5+=) 29...Qc6 (29...Qe3 30.Kh1 Qc1 31.Rg1+/-) 30.Qg4+= Kh8 31.Qf5 Rg8? (better is 31...Kg8!?+=) 32.Qf7+- Bh6 33.Qf6 Rg7 (33...Bg7 34.Qf5+-) 34.g3 Qe4?? (34...Qb6 35.Kg2 Qc6 36.Rf3 Qc2 37.Kh3 Qg6+-) 35.Bf8 (35.Qf8!? Rg8 36.Qh6 Qe3 37.Rf2 Qe1 38.Kg2 Qe4 39.Kf1 Qb1 40.Ke2 Qb5 41.Kd2 Qb2 42.Ke3 Qb6 43.Kd3 Qf2 44.Qf6 Rg7=) 35...Qe3 36.Rf2 1–0. Mereu,Matteo – Cantu,Guido (1840), ITA–ch U20 Bratto, 2006. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.d3 cb4-/+ 5.a3 ba3 6.Na3 Nc6 7.Bb2 e6 8.Nc4 (8.Be2 Be7+=) 8...b5 (8...d5 9.e5 dc4 10.ef6 gf6 11.dc4-/+) 9.Ncd2 (9.Ne3 Qb6+=) 9...Be7 10.d4 Qb6 11.Be2 0-0 12.0-0 a6 (12...d5 13.e5 Nd7 14.Bd3-/+) 13.c3 (13.c4 Bd7+=) 13...Bb7 (13...d5 14.Bd3-/+) 14.Qb1 (14.c4 Nb4 15.Qb3 a5=) 14...h6 (14...d5 15.e5 Nh5 16.g3-/+) 15.Ba3 (15.c4 Qc7+=) 15...Qc7 16.Re1 Rac8 17.Rc1 d5 18.Be7 Qe7 (18...Ne7 19.e5 Ne4 20.Ra3-/+) 19.Bd3+= de4 20.Ne4 Ne4 21.Be4 Qd7 22.Qb3? Qd6 23.Bc6 Qc6-+ 24.Qb2 Rfd8 25.Qe2 Qe4 26.Qe4-/+ Be4 27.Ra6? Bf3 28.gf3 Rd4! 29.cd4 Rc1 30.Kg2 b4 31.Ra8 Kh7 32.Rb8 Rc4 33.Kf1 Rd4 34.Ke2 e5 35.Rb7 Rf4 36.Rb5 f6 37.Ke3 g5 38.h3 Kg6 39.Rb8 h5 40.Rb6 Kf7 0–1. Kramer,Ralf (1630) – Huebner,Alan_Ari (1725), Berlin GER, 2012. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

4.Bd3 cb4 5.0-0+=.

4.Bd3 Qc7 5.0-0 (5.bc5 dc5 6.Bb5 Bd7=) 5...Nbd7 (5...cb4 6.a3+=) 6.Bb2 (6.bc5 dc5 7.Qe2 e5=) 6...e6 (6...cb4 7.c3+=) 7.a3 (7.bc5 Nc5 8.Bf6 Nd3 9.cd3 gf6+=) 7...Be7 (7...c4 8.Be2 Ne4 9.d3 cd3 10.cd3+=) 8.Nc3= 0-0 9.Nb5 Qb8 10.Re1 a6 11.Nc3 b5 12.Na2 Bb7 13.e5 (13.Nc3 Qc7+=) 13...Nd5 (13...Bf3 14.Qf3 Ne5 15.Be5 de5 16.bc5 Bc5 17.Nc3-/+) 14.ed6 Bd6 15.Be4 N7f6 16.Bd5 Nd5 17.d4 (17.bc5 Bc5 18.a4 b4+=) 17...c4 (17...cb4!? 18.ab4 Nb4 19.Nb4 Bb4-+) 18.Ne5 Be5 19.Re5 Qc7 20.f3 (20.Qg4 c3 21.Bc1 Rae8+=) 20...Rfe8 (20...c3!? 21.Bc1 Qc4-/+) 21.Nc3+= Rad8 22.Ne4 (better is 22.Qe2!?=) 22...f6-/+ 23.Rh5 Re7 (better is 23...e5!?-/+) 24.Qd2 e5 25.Qe1?? (better is 25.de5 fe5 26.Rd1=) 25...Nf4-+ 26.Rh4 (26.Rf5 ed4 27.Bc1 Ng6-+) 26...ed4 27.Rc1? f5 28.Nc5 Re1 29.Re1 d3 30.cd3 cd3 31.Nd3 Nd3 32.Rb1 Qb6 33.Kh1 Nf2 34.Kg1 Nh3 35.Kh1 Qg1! 36.Rg1 Nf2 0–1. Pueschel,Torben – Bajorski,Maria Sophie, GER–ch U10 Willingen, 2006. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.e5 de5 5.Bb2 e4 6.Ne5 cb4 7.Bc4 e6 8.g4 h6 9.f4 Bc5 10.Qe2 Nbd7 11.d4 ed3! 12.cd3 (12.cd3 Ne5 Decoy; 12.Bd3 Ne5 Decoy; 12.Qd3 Ne5 Double attack (12...Ne5 Decoy); 12.Nd3 0-0 Combination) 12...Ne5 13.fe5 Nd5 14.d4 Be7 15.0-0 Bg5 16.Nd2 Bd2 17.Qd2 0-0 18.Rf3 Qg5 (18...b6 19.a3 Bb7 20.ab4 Nb4 21.Rf2-+) 19.Qf2 (19.Qg5!? hg5 20.h3-/+) 19...b5 20.Bd3 f5 21.h4 (21.Rf1!? Qg4 22.Rg3-+) 21...Qg4 22.Kh2 Bb7 23.Rg1 Qh5 24.Bc1 Nc3 25.Rh3 Rad8 26.a3 a5 27.ab4 ab4 28.Bd2 Be4 29.Bc3 bc3 30.Bb5 Rb8 31.Be2 Rb2 32.Re3 Bd5 33.Bh5 Rf2 34.Kg3 Rc2 35.Kf4 Rc8 36.Reg3 Rc7 37.Rb1 Rf2 38.Ke3 Rb2 39.Ra1 c2 40.Rgg1 Rc3 (40...Rc3 41.Kf4 c1Q 42.Rgc1 Rf2 43.Bf3 Rff3) 0–1. Vekemans,D (1980) – Purenne,B (2165), Avoine FRA, 2012. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.e5 de5 5.Bc4 Bg4 (5...cb4 6.Qe2 e4-/+) 6.Ne5?? (better is 6.Bf7 Kf7 7.Ne5 Ke8 8.Ng4+=) 6...Bh5?? (better is 6...Qd4 7.Bb5 Nc6 8.Nc6 Qa1 9.Ne5 Bd7 10.Nd7 Nd7-+) 7.Qh5!!+- Qc7 (7...Nh5 8.Bf7 Mate attack) 8.Bb5 (8.Qf7!? Kd8 9.Qe6 Ke8+-) 8...Nc6 (8...Nbd7 9.Qf7 Kd8 10.Nd7 Nd7 11.bc5 Qe5 12.Kd1+-) 9.Qf7 (better is 9.Bc6 bc6 10.Qf7 Kd8+-) 9...Kd8 10.Nf3 Nb4 11.0-0 a6 12.Ng5 Kc8 13.Qe6 Kb8 14.Bb2 Ka7 15.Be5 Qb6 16.Qb6 Kb6 17.Bd3 Ng4 18.Bg3 Nd3 19.cd3 h6 20.Ne6 g5 21.Nc3 Nf6 22.Rab1 Kc6 23.d4 b6 24.d5! Kb7 25.Rb6! Kb6 26.Rb1 Ka7 27.Nc5 Rc8 28.Rb7 Ka8 29.N3a4 Nd5 30.Rd7 e6 31.Rd5! Bc5 32.Rc5 Rc5 33.Nc5 Rd8 34.d3 Rd5 35.Na6 Rd3 36.h3 Ra3 37.Nc7 Kb7 38.Ne6 Ra2 39.Nd8 Kc8 40.Nf7 Ra6 41.Be5 Rg6 42.g4 Kd7 43.Nd6 Ke6? 44.Bg3 Ke7 45.Nf5 Kd7 46.Be5 Ke6 47.Bg7 Kf7 48.Bh6 Rg8 49.f4 gf4 50.Bf4 Ra8 51.Be5 Ra2 52.Bg3 Kg6 53.Bf2 Ra3 54.Kg2 Kg5 55.Ne3 Kf4 56.Nd5 Ke4 57.Nf6 (57.Nf6 Kf4 58.h4+-) 1–0. Perez Reclusa – Zaratiegui Cardesa, Pamplona Primavera op, 1998. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.e5 de5 5.bc5 e4 6.Bb5 Bd7-+ 7.Bd7 (7.Nd4 e5 8.Bd7 Nbd7-+) 7...Nbd7 (7...Qd7 8.Ng5 Qf5 9.h4-+) 8.c6 (8.Nd4 Nc5 9.Nb3 Na4-+) 8...bc6 (8...ef3?! 9.cd7 Qd7 10.Qf3 Qe6 11.Kd1=) 9.Nd4 e6 (9...e5 10.Nb3-+) 10.Nc3 (10.0-0 Ne5 11.Nb3 a5-+) 10...Qb6 (10...Ne5 11.Nb3 c5 12.Ba3-+) 11.Nde2-/+ Bd6 12.0-0 (12.Ng3 Qd4-/+) 12...h5 (12...0-0 13.Ng3-/+) 13.d4 (13.Rb1 Qc7 14.Ng3 0-0-/+) 13...ed3! 14.Qd3 (14.cd3 Qb4 Combination; 14.Qd3 Qc7 Combination) 14...Qc7 15.h3 (15.f4 0-0-/+) 15...Ne5 (15...Rb8 16.Rd1 Nd5 17.Be3-/+) 16.Qe3 (16.Qg3 Ng6 17.Qd3 0-0-/+) 16...Neg4 (16...Nd5!? 17.Qg5 f6-/+) 17.Qg5-/+ Bh2 (17...0-0-0 18.Re1 (18.hg4? Bh2 19.Kh1 hg4-+) 18...Nh6 19.Qh4=+) 18.Kh1 Be5 19.f4 (19.hg4?? hg4 20.Qh6 gh6-+) 19...Bd6 20.Rb1 (20.f5 Be7 21.Qf4 Qf4 22.Rf4 Nd5 23.Nd5 cd5 24.hg4 hg4 25.Kg1 Bc5 26.Rf2 Rc8-/+) 20...Be7 21.Nd4?? (21.Qh4 0-0-0 22.Rb3-/+ (22.hg4?? hg4 23.g3 Rh4 24.gh4 Rh8-+)) 21...Ne4!!-+ 22.Qg7 (22.Ne4 Bg5 Discovered attack) 22...Ng3 23.Kg1 Bf6 24.Ne6 fe6 (better 24...Qd6 25.hg4 Qe6-+) 25.Qg6 (25.Qc7?? Bd4 26.Be3 Be3 27.Rf2 Bf2) 25...Qf7 26.Qd3 Nf1 (better 26...Bc3 27.Qg3 Bd4 28.Kh1 e5-+) 27.hg4? (better 27.Ne4 Rd8 28.Nd6 Rd6 29.Qd6-+) 27...Rd8 28.Qc4 (28.Qf3 Nd2 29.Bd2 Rd2 30.Qc6 Qd7 31.Qd7 Rd7-+) 28...Ng3 29.Kf2 (29.g5 Bc3 30.Kh2 0-0 31.Kg3 Be1 32.Kh2 Rd1-+) 29...hg4 30.Qc6 Qd7 31.Qd7 Rd7 32.Rb8 (32.Kg3 Bh4 33.Kg4 Rg8 34.Kh3 Rh7-+) 32...Rd8 33.Rd8 Kd8 (33...Bd8?! 34.Kg3 Rh1 35.Bb2-/+) 34.Kg3 Bc3 35.Kg4 Ke7 36.Be3 (36.Ba3 Kf7-+) 36...a5 37.Bc5 (37.Kf3 Rc8-+) 37...Kf7 0–1. Kandic,Milan (2130) – Benmesbah,Natacha (2225), Gibraltar Open, 2012. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

4.bc5 dc5

5.Bb5 Bd7 6.Bd7 Qd7 7.Nc3 e6 8.0-0 Nc6 9.e5 Nd5 10.Ne4 Be7 11.d3 h6 12.a3 0-0-0 13.c4 Nc7 14.Be3 Na6 15.Rb1 f5 16.ef6 gf6 17.Qb3 f5 18.Nc3 Bf6 19.Nb5 Rhg8? (better is 19...Rh7=) 20.Nd6+- Kc7 21.Qb7 (better is 21.Nb7!? Rb8 22.Qb5 Qd3 23.Qa6+-) 21...Kd6+/- 22.Qa6 e5?? (better is 22...Qg7 23.g3 Qg4+-) 23.Rb7+- (23.Bh6?! Qe8 24.Bd2 Rd7+-) 23...Qe8 (23...Qc8 24.Bc5 Ke6 25.d4+-) 24.Bc5 (24.Bh6 Qg6 25.Ne1 Qh6 26.Ra7 Rh8-+) 24...Ke6 25.d4 1–0. Cruz Portuondo,Manuel De Jesus (2120) – Garcia Matos,R (2250), La Habana CUB, 2013. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

5.Bb5 Bd7 6.Qe2 e6 7.Nc3 Nc6 8.0-0 Nd4 9.Nd4 cd4 10.e5 dc3 11.ef6 gf6 12.dc3 Bb5 13.Qb5 Qd7 14.Qb3 Rg8 15.Be3 Qc6 16.g3 Bd6 17.Rab1 b6 18.Rfd1 Rc8 19.Rd3 Rg4 20.Qb5 (20.Rbd1!? Be5 21.f4=) 20...Qb5-/+ 21.Rb5 Be5 22.f4 Bc3 23.Kf2 f5 24.Kf3 h5 25.Rb3 Bf6 26.a4 (26.Ra3!? Rc7 27.c3-/+) 26...Rc2-+ 27.a5 Rh2 28.Bg1 Rb2 29.Rb2 Bb2 30.a6? (better is 30.ab6 ab6 31.Rb3-+) 30...h4 31.Bb6 (31.Ke2 Ke7 (31...Rg3?! 32.Rg3 hg3 33.Bb6-+) 32.Bb6 ab6-+) 31...Rg3 (31...ab6? 32.a7 Rg3 33.Ke2 Rd3 34.Kd3+-) 32.Ke2 Rd3 (32...ab6? 33.Rg3 hg3 34.a7+-) 33.Kd3 h3 (33...ab6? 34.a7+-) 34.Bg1 Kd7 35.Ke2 Bd4! 0–1. Meixner,F (2070) – Szalanczy,E (2265), 27th Budapest Spring Festival, 2011. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

5.Bb5 Bd7 6.Qe2 e6 7.Bd7 Qd7 8.Bb2 (8.0-0 Nc6+=) 8...Nc6 9.Ne5 (9.Na3 Nd4 10.Nd4 cd4=) 9...Ne5 (9...Qc7 10.Nc6 Qc6 11.Nc3=) 10.Be5+= Be7 (10...a6 11.a4+=) 11.a4 (11.Nc3 0-0+=) 11...0-0= 12.d3 (12.Nc3 Rad8=) 12...Qc6 (12...c4 13.dc4 Qc6 14.Nd2=) 13.Nd2 Nd7 14.Bc3 White prepares e5 (14.Nc4!?=) 14...Nb6=+ The isolani on a4 becomes a target 15.Qg4 (15.Nf3 Na4 16.Ne5 Qa6=+) 15...f6 16.e5 (16.0-0!?=+) 16...f5-/+ 17.Qf3 Qd7 18.Rb1 (18.0-0 Na4 19.Ba5 b5-/+) 18...Nd5-+ 19.Ba1 Qa4 20.0-0 b6 (20...Qc2 21.Rb2 Qa4 22.Rb7-+) 21.c4-/+ Nb4 22.Bc3 (22.Nb3!?-/+) 22...Rfd8-+ 23.Bb4 cb4 24.Nb3 (24.Rfd1 Qd7 25.Nf1 Qd4-+) 24...Qd7 25.d4 a5 (25...Rac8!? 26.c5-+) 26.d5-/+ ed5 (26...Bc5 27.Nc5 bc5 28.d6-+) 27.Rfd1 (27.Rbd1 a4 28.cd5 Qb7-/+) 27...Qc7-+ 28.cd5 Qe5 29.Re1 Qf6 30.Re6 (30.Rbd1 a4 31.Nd4 Bc5-+) 30...Qf7 31.Nd4 (31.Rd1 a4 32.Nd4 Bc5-+) 31...Bc5 32.Nf5 (32.Nc6 Re8-+) 32...a4 33.Rbe1 (33.Qg4 Kh8 34.Ne3 b3-+) 33...Rf8 34.g4 a3 35.Qb3 Kh8 (better 35...a2 36.Qb2 b3-+) 36.R1e2? (better 36.Qb1-+) 36...g6 37.Nd6 (37.Ng3-+) 37...Qf4 (37...Bf2 38.Kg2 Qf4 39.Nf5 Qg4 40.Ng3-+) 38.Ne4 Qg4 39.Ng3 (39.Kf1 Qh5 40.Nc5 Qh2 41.Ra2 bc5 42.d6-+) 39...Qf3 40.R6e3 (40.Qf3 Rf3 41.Kg2-+) 40...Be3 41.fe3 Qe2! 42.Ne2 (42.Ne2 a2 Passed pawn) 42...a2 43.Qb2 Kg8 44.Qa1 b3 45.Nc3 (45.Kg2 b2! 46.Qb2 a1Q 47.Qa1 Ra1-+) 45...b2! 46.Nb1 (46.Qb2 a1Q Deflection) 0–1. Junge,Ralph Dr (2275) – Stachowiak,Kamil (2410), 2. Bundesliga Nord, 2017. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6 4.bc5 dc5)

5.Nc3 a6 6.a4 Nc6 7.h3 e6 8.Bc4 g6 9.0-0 Bg7 10.Rb1 0-0 11.Bb2 Qa5 12.d3 Rd8 13.Nd2 Nd4 14.f4 Bd7 15.e5 Ne8 16.Nde4 (16.Nb3 Nb3 17.Bb3 Bc6=) 16...Bc6 (16...b5 17.Bb3 Bc6 18.Nd2+= (18.Nc5? Qb6-+)) 17.Ba3 (17.Ra1!?=) 17...Bf8 18.Bc1? (better is 18.Bb2!?+=) 18...b5-+ (18...Ba4 19.Na4 Qa4 20.Rb7 Qc2 21.Qc2 Nc2 22.Ng5+/-) 19.ab5 ab5 20.f5? (better is 20.Nb5 Bb5 21.Bd2-+) 20...bc4 21.fg6 fg6 22.Rf8 (22.dc4 Qc7 23.Bg5-+) 22...Kf8 23.Bh6 Kg8 24.g4 0–1. Canal Oliveras,Joan – Alonso,Juan Ignacio, It (b), Barbera (Spain), 1997. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

5.Nc3 Nc6 6.Bc4 e6= 7.0-0 Be7 8.d3 0-0 9.Bb2 b6 10.Ne2 Na5 11.Nd2 Qc7 12.a4 Rd8 13.f4? (better 13.Qe1=) 13...Ne4!-+ 14.Be5 (14.Ne4 Nc4 Combination; 14.de4 Nc4 Combination) 14...Nd6 (14...Bd6 15.Bd6 Nd6 16.Ba2-+) 15.Ba2 (15.Nc3 f6 16.Nb5 Qc6 17.Bd6 Bd6 (worse 17...Rd6 18.Nd6 Bd6 19.Qg4+=) 18.Nd6 Qd6-/+) 15...Nc6 16.Bc3 (16.Ng3!?-/+) 16...Nf5-+ 17.Nc4 Bb7 18.Qb1 (18.Qd2 Ncd4 19.Ne5 Nh4 20.Bd4 cd4-+ (20...Rd4?! 21.Nd4 cd4 22.Rf2=+)) 18...Ncd4 19.Nd4 Nd4 (19...Rd4?! 20.Bd4 cd4 21.Qb5-/+) 20.Rf2 (20.Qd1 Qc6 21.Ne3 c4 22.Bd4 Rd4-+) 20...Bh4 21.Rd2 Qf4 22.Qf1 Qf1 23.Rf1 Bd5 24.Bb3 (24.Kh1 Kf8-+) 24...Bg5 (24...Bg5 25.Rdf2 Bc4 26.Bc4 Be3-+; 24...Nb3?! 25.cb3 f6 26.Re2-+) 0–1. Wiesner,Alexander (1945) – Schroeder,Kevin (2260), German Youth Championship U16, 2016. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 dc5)

5.Nc3 Nc6 6.h3 a6 7.a4 Nd4 8.Rb1 e6 9.Bc4 Be7 10.0-0 0-0 11.Re1 b6 12.d3 Bb7 13.Bb2 Bc6 14.Nd4 cd4 (14...Qd4?? 15.Nd5 ed5 16.Bd4 dc4 17.Bf6 Bf6 18.Rb6 Ba4 19.dc4+-) 15.Ne2 Bc5 16.e5 Nd5 (16...Ne8!?+=) 17.Nd4 Ba4 18.Qd2 b5 19.Bb3 Nb6 20.Re4 Rc8 21.Nf3 b4 22.Rg4 Bb3 (22...h5 23.Rg3 h4+/-) 23.Qh6+/- g6 24.Ng5 Qg5 25.Qg5 Bc2 26.Ra1 Bd3 27.Rh4 f6 28.ef6 Nd5 29.Bd4 b3 30.Qe5 Bd4 31.Rd4 (better is 31.Qe6!? Kh8 32.Qd7 (32.Rd4?! b2 33.Rd1 Rc1+=) 32...Nf6 33.Qd4+-) 31...b2+= 32.Rd3?? (better is 32.Rd1 Rc1 33.Qe6 Kh8 34.R4d3=) 32...Rc1-+ 33.Rd1 ba1Q 34.Qa1 Ra1 35.Ra1 Nc7 36.Rc1 Rc8 37.g4 Kf7 38.g5 Ke8 39.Kg2 Kd7 40.Ra1 Ra8 41.Kf3 a5 42.Ra4 Nd5 43.Rh4 Rh8 44.Ra4 h6 45.Ra5 hg5 46.Ra7 Kd6 47.Kg4 Nf6 48.Kg5 Ne4 49.Kg6 Nf2 50.Ra6 Ke5 51.Ra5 Kf4 52.Ra4 Ne4 53.Ra3 e5 54.Kg7 Rh4 55.Kf8 Ng5 56.Ra4 e4 57.Ke7 Rh3 58.Kf6 Nf3 59.Ra3 e3 60.Ra4 Kg3 61.Kf5 e2 62.Rg4 Kf2 0–1. Arnetta,MT – Gueci,T, AcquiScacchi, 2012. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

5.Nc3 e6 6.Bb5 Bd7 7.Rb1 Nc6 8.0-0 Be7 9.Re1 0-0 10.e5 Nd5 11.Ne4 Qc7 12.Bb2 a6 13.Bf1 Nf4 14.g3 Ng6 Can e5 get defended? 15.Bg2 Rfd8 16.h4 Nge5 (16...Bc8 17.h5 Nge5 18.Ne5 Ne5 19.h6=+) 17.Ne5= Ne5 18.Nc5 Qc5 (worse 18...Bc5 19.Be5 (worse 19.Re5 f6 20.Re1 e5=+) 19...Qa5 20.Qg4+/-) 19.Re5 Qc7 20.Bc3 Bc6 21.Bc6 bc6 22.Re4 Rd5 23.Qg4 Bf8 24.h5?? (better 24.Ree1=+) 24…f5-+ (24...f5 25.Qh3 fe4 26.Qe6 Qf7 27.Qe4 Bc5-+) 0-1. Grabinsky,V (2225) - Zanan,E (2505), 30th Czech Rapid G1, 2019.

5.Nc3 e6 6.Bb5 Nfd7 7.0-0 Be7 8.d4 cd4 9.Qd4 0-0 10.e5 Nc5 (10...a6!? 11.Bd7 Qd7=) 11.Qg4+- f5 12.ef6 Bf6 13.Bg5 Qa5 ½–½. Kuhn,Norbert (2000) – Schwalbe,Gerhard (1955), Regionalliga NW, 2006. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 dc5)

5.Nc3 e6 6.Be2 Be7 7.0-0 0-0 8.d3 Nc6 9.Rb1 b6 10.h3 Bb7 11.Bf4 Nd4 12.Be3 Ne8 13.Qd2 f5 14.Bd4 (14.Rfe1!?=) 14...cd4-/+ 15.Nb5 (15.Nd1 Rc8-/+) 15...e5 (15...fe4?! 16.Nfd4 ed3 17.Qd3=) 16.Rb3 fe4 (16...a6 17.Na3 Ba3 18.Ra3-+) 17.de4-/+ Bf6 (17...a6!? 18.Na3 Nf6-/+) 18.Bc4 Kh8 19.a4 (better 19.Re1!?=+) 19...a6-+ 20.Na3 Be4 21.Re1 Nd6 22.Qb4 Nc4 23.Re4 Na3 24.Qa3 Qd5 25.Re2 b5 26.Nd2 Rfe8 27.ab5 ab5 28.Qb4 Rab8 29.Ne4 Be7 30.Qd2 Qc4 31.Ng3 Bf8 32.Rf3 Qc6 33.Ne4 b4 (33...Ra8 34.c3-/+) 34.Ng5 e4 35.Rf4 (35.Rg3!? Rb7 36.Rg4-/+) 35...d3!-+ 36.cd3 ed3 (better 36...b3!? 37.Rfe4 b2 38.Qb2 Rb2 39.Re8 Rb1 40.Kh2 Kg8-+) 37.Qd3?? (better 37.Re8 Re8 38.Rf3-/+) 37…Qc1-+ (37...Qc1 38.Kh2 Qf4 39.g3 Qg5 40.Re8 Re8-+) 0-1. Pavlov,Mikhail (1895) - Babanin,Gleb (2110), St Petersburg RUS, 2019. (=1.e4 c5 2.Nf3 d6 3.b4)

5.Nc3 g6 6.Bc4 Bg7 7.Rb1 0-0 8.0-0 Nc6 9.d3 b6 10.Bb2 (10.e5 Nd7 11.Bd5 Bb7=) 10...Bb7 (10...Bg4 11.Nd5=) 11.a3 a6 12.Ng5 (12.Nd5 Nd5 13.Bg7 Kg7 14.Bd5 e6 15.Bc6 Bc6+=) 12...Ne5 13.Ba2 e6 (13...Qd6 14.Nf3 Nf3 15.Qf3=) 14.f4+= Neg4? (better 14...Ned7+=) 15.Ne6!+- Qd7 (15...fe6 16.Be6) 16.h3 (better 16.Nf8!? Qd4 17.Kh1 Nf2 18.Rf2 Qf2 19.Na4+-) 16...fe6 17.hg4 Kh8 18.Qf3 White plans f5 18...e5 (18...b5 19.Qh3+-) 19.f5+- g5 20.Ne2 Qe8 (20...Qd6+-) 21.Bc1 h5? (21...c4+-) 22.gh5 g4 23.Qg3 Qh5 24.Rb6 Be4 25.de4 Ne4 26.Qh2 Qh2 27.Kh2 Bf6 (27...Ra7+-) 28.Bd5 1–0. Koch,Christian (1910) – Hornung,Wolfgang (1885), Oberfraenkische Einzelmeisterschaft, 2016. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 dc5)

5.e5 Nd5 6.Bb5 Bd7 (6...Nc6 7.0-0=) 7.Bd7 (7.a4 Nc6=) 7...Qd7 8.0-0 (8.Nc3 e6=) 8...e6 (8...Nc6 9.Nc3=) 9.Bb2 (9.Nc3 Nc6=) 9...Nc6 10.Nc3 Be7 11.Nd5 (11.Ne4 0-0=) 11...Qd5 12.d3 (12.Qe2 0-0=) 12...0-0 (12...c4 13.Rb1=+) 13.c4= Qd7 14.Qe2 Rfd8 15.Rfd1 Qc7 (15...Rab8 16.Bc3=) 16.Bc3 Rd7 (16...Qb6 17.Rab1 Qa6 18.Rb2=) 17.Rd2 (17.Rab1 Rad8=) 17...Rad8 (17...Qb6 18.g3=) 18.Rad1 (18.Rb1 b6=) 18...Qb6 (18...h6 19.Rb2=) 19.Qe4 (19.g3 h6=) 19...Qa6 20.Qe2 (20.g3 Qa3 21.Rc2 a5=) 20...Qa4 (20...Qa3 21.Rc2=+) 21.g3 (21.h3 a6=+) 21...a6 22.d4 (22.Qe4!?=+) 22...cd4-/+ 23.Nd4 Nd4 24.Rd4 Rd4 25.Rd4 (25.Bd4?? Bc5! 26.Bc5 Qd1 27.Qd1 Rd1 28.Kg2 Rc1-+) 25...Rd4 26.Bd4 b5 27.Ba7 (27.cb5 Qd4 28.ba6 Bc5-/+) 27...bc4-+ 28.Bd4 h6 29.Qb2 (29.Kg2 Qc6 30.Qf3 Qd5 31.Qd5 ed5-+) 29...Qb5 (29...Bb4 30.h3-+) 30.Qc2 (30.Kg2 h5-+) 30...Ba3 (30...Qd5 31.Qc3-+) 31.Ba1 (31.Qe4 Qd5 32.Qd5 ed5-+) 31...a5 (31...Qd5 32.Bc3-+) 32.Bd4 (32.Qe4 Qd5 33.Qd5 ed5-+) 32...Qd5 33.Ba1 (33.Bc3 Bb4-+) 33...Bc5 34.Qc3? (better 34.Bc3-+) 34...Qd1 35.Kg2 Qe2 36.Qb2 (36.Qf3 Qa2 37.Bc3 a4 38.Qa8 Kh7 39.Qe4 g6-+) 36...Qe4 37.Kg1 (37.f3 Qe1 38.Qb7 Qa1 39.Qc8 Kh7 40.Qc5-+) 37...Qe1 38.Kg2 Bf2! 39.Qf2 (39.Qb8 Kh7 40.Qb2 Qg1 41.Kf3 Bc5 42.Qc2 g6-+) 39...Qa1 40.Qc2 0–1. Esnaola Sansebastian,Ion (2025) – Torrecillas Martinez,A (2375), ch Barcelona ESP, 2000. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 dc5)

5.e5 Nd5 6.Bb5 Bd7 7.Bd7 Qd7 8.0-0 e6 9.d4 cd4 10.Nd4 Nc6 11.c4 Nb6 12.Nc6 Qc6 13.Ba3 Nc4 14.Bf8 Kf8 15.Qb3 Ne5 16.Na3 Rc8 17.Qe3 (17.Rab1 b6-/+) 17...Qa4 (17...Qc5!? 18.Qb3 b6 19.Rad1-/+) 18.Rac1 Rc1 19.Rc1 Nc6 20.Qc5 Kg8 21.Qd6? (better 21.Nc4!?-/+) 21...g6-+ 22.h3 (22.Rc4 Qa6 23.Rf4-+) 22...Qb4 (22...Kg7 23.Kh2-+) 23.Qg3 (23.Qb4!? Nb4 24.Rc7-/+) 23...Kg7 24.Rb1 Qe4 (24...Qe7 25.Nc2-+) 25.Rb7-/+ Ne5 (25...Nd4!? 26.Qc7 Qe1 27.Kh2 Qf2 28.Qe5 Kh6-+) 26.Ra7=+ Rd8 27.Qe3 Rd1 28.Kh2 Qe3 29.fe3 Re1 (29...Rd2!? 30.Nb1 Re2-/+) 30.Nc2= Re2 31.Nd4 Re3 32.Ne6 Kf6 33.Nf4 Kf5 34.Nd5 Rd3 35.Ne7 Kf4 36.Ra4 Ke3 37.Ra5 f6? (better 37...Ke4!?=) 38.Nd5+- Kf2 39.Nf6 Nf3?? (better 39...Nc4 40.Rb5 h5+-) 40.gf3+- Kf3 41.h4 1–0. Abdelaal,Ibrahim – Vignalou,Joseph (1750), Quebec Open, 2018. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 dc5)

5.e5 Nd5 6.Bc4 Nc6 7.0-0 e6 8.c3 Be7 9.d4 0-0 10.Bb2 (10.Ba3 cd4 11.cd4 Ncb4=) 10...Qb6 11.Ba3 Rd8 12.Qb3 (12.Qd2 cd4 13.cd4 Ndb4=) 12...cd4=+ 13.Be7 Nde7 14.Qb6 ab6 15.cd4 (15.Rd1 Ng6 16.cd4 Nce5-/+) 15...Nd4-/+ 16.Nbd2 b5 17.Nd4?? (better 17.Bb3-/+) 17...Rd4-+ (17...bc4?! 18.N2f3-/+) 18.Rfd1 (18.Rad1 bc4 19.Nc4-+) 18...bc4 (18...Rc4? 19.Nc4 Nc6 20.Nb6+-) 19.Nc4 Rd1 (better 19...Ra2! 20.Nd6-+) 20.Rd1 Nd5 21.Nb6 Rb8 22.h4 (22.a4 f6 23.Nd5 ed5 24.Rd5 Be6-+) 22...Kf8 23.Nc4 (23.Nd5 ed5 24.Rd5 Be6-+) 23...Ke7 (23...f6 24.a4-+) 24.Nd6 (24.Rd3 b5 25.Nd6 f6-+) 24...Bd7 25.Rc1 (25.Rb1 b5-+) 25...Bc6 26.g3 (26.Rc2 f6-+) 26...Ra8 27.Rc2 h6 (27...Nb4 28.Rd2-+) 28.f4 (28.Rb2 f6 29.f4 Ra3-+) 28...g5! 29.f5 (29.fg5 hg5 Combination; 29.hg5 hg5 Combination) 29...ef5 (29...gh4 30.f6 Nf6 31.Rf2-+) 30.Nf5 Ke6 31.Nd4 Ke5 (31...Ke5 32.Nc6 bc6 33.Rc6 gh4 34.gh4 h5-+) 0-1. Akhayan,R (2255) - Baches Garcia,G (2325), Titled Tuesday, 2020. (=1.e4 c5 2.Nf3 d6 3.b4)

5.e5 Nd5 6.d4 e6 7.c4 Nc7 8.Be3 b6 9.Be2 Be7 10.Nc3 0-0 (10...cd4 11.Qd4 Qd4 12.Bd4=) 11.0-0 (11.d5 Ne8+/-) 11...Bb7 12.Qc2 (12.dc5 bc5 13.Rb1 Qc8+=) 12...Nd7 13.Rad1 Na6 (better is 13...cd4!? 14.Bd4 Na6+=) 14.d5+/- Nb4 15.Qd2 ed5 16.cd5 Qb8 17.d6 (17.a3!? Na6 18.d6+-) 17...Bd8+/- 18.Bc4?? (18.Bf4 Re8+/-) 18...Nc6?? (better is 18...Bf3 19.gf3 Ne5+=) 19.e6+- Nde5 (19...Na5 20.Bb5 (worse is 20.ed7 Nc4 21.Qe2 Ne3 22.fe3 Bf6+=; 20.ef7?! Kh8 21.Bd5 Bf6+/-) 20...Bf3 21.gf3+- (21.Bd7?! Bd1 22.e7 Bh5+=)) 20.Ne5 Ne5 21.ef7 (21.e7!? Be7 22.de7 Re8+-) 21...Nf7 22.Bd5 Kh8 23.Bf7 (23.Bb7 Qb7 24.Qd5 Qd5 25.Rd5 Bf6+=) 23...Rf7+= 24.d7 Bc6-/+ 25.Rfe1 Rd7 26.Qe2 Rd1 27.Rd1 Bf6 28.Qc4 Qb7 29.f3 Re8 30.Bf2 h6 31.a3 a6 32.Rb1 Bc3 33.Qc3 Qa7 34.Qb3 Bb5 35.a4= Bc6 36.Qb6+= Qb6 37.Rb6 Ba4 38.Bc5 Bb5= 39.Rb7 Re1 40.Kf2 Re2 41.Kg3 Re6 42.Ra7 Rg6 43.Kf2 ½–½. Waroff,Chris – Gullmes,Ake, Berkeley Peoples op, 1999. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6)

4.bc5 Ne4

5.d4 dc5 6.Bc4 (6.Bd3!? f5 7.0-0+=) 6...Nd6 7.Be2 cd4 8.Nd4 (8.0-0 Nf5-/+) 8...e5 9.Nf3 e4 (9...Nc6 10.0-0-/+) 10.Nd4-/+ Be7 11.0-0 0-0 12.Nc3 Qa5 13.Bd2 (13.Qd2 Nc6 14.Nc6 bc6-/+) 13...Qe5 14.Ndb5 (14.Be3 Rd8 15.Rb1 Nc6-+) 14...Na6 (14...Nb5 15.Nb5 Nc6 16.Bc3-+) 15.Qc1 (15.Bf4 Qf4 16.Nd5 Qe5 17.Ne7 Qe7 18.Qd6 Qg5-/+) 15...Nb5 16.Nb5 Bd7 17.Bf4 Qf6 18.Rb1 Bc6 (18...Nb4 19.Nc7 Rad8-+) 19.Rb3 (better is 19.Be3!?-/+) 19...Nc5-+ 20.Rg3 Ne6 21.Bd2 Bb5 22.Bb5 Rac8 23.Qb1 Nd4 (23...Rfd8!? 24.Be3-+) 24.c3 Nb5 25.Qb5 Bd6 26.Rh3 b6 27.Qa4 Qe7 28.Re1 f5 29.Qb5 (29.Qb3 Qf7-+) 29...Bc5 (29...Qf7 30.Qb1-+) 30.Bf4 Qf7 31.Rg3? (better is 31.Qb3-+) 31...Qa2 32.Rf1 (32.Qf1 a5-+) 32...a6 (better is 32...Rfd8 33.Be5 Qd5 34.Rg7 Kf8 35.Qe2 Qe5 36.Ra7-+) 33.Qd7 Qf7 (33...g6 34.Bh6 Qf7 35.Qa4-+) 34.Qa4 Rfd8 35.Qa6 Ra8 36.Qb5 Ra2 37.Be3 f4 38.Bc5 fg3 39.Qb6 gh2 40.Kh2 Rc8 41.Kg1 h6 42.Bd4-/+ Kh7 43.Qb1 Qd5 44.Re1 Re8 45.f3 Ra6 46.fe4+= Qc4 47.Qb7 Rg6 48.e5 Ree6 49.Qe4 Ra6 50.Re2 Rae6 51.Re3 Qb3 52.Bc5 Qd1-/+ 53.Re1 Qd2 54.Bd4 Qa2 55.Bf2 Rc6 56.Re3 Rc4-/+ 57.Qd3 Qa1 58.Be1 Rcg4 59.Re2 Rg2 60.Kf1?? Rg1-+ 61.Kf2 Qc1 62.Qf5 R1g4 63.Kf3 Qd1 64.Ke3 Qd5 65.Rd2 Qc5 66.Rd4 R4g5 67.Qd3 Qe5 68.Kd2 Rg2 69.Kd1 Qa5 70.Rb4 Qa1 71.Rb1 Qa4 72.Kc1 Rg1 73.Qe3 Qa3 74.Kc2 Qa4 75.Kc1 Qh4 76.Kc2 R6g2 77.Kb3 Qg4 78.Qd3 Qg6 (78...Qg6 79.Qg6 Kg6-+) 0–1. Chandler,Patrick (2265) – Wendling,Hannes (2195), Oberliga Ost–B, 2009. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

5.cd6 Qb6 6.d4 Bg4 7.Bd3 Nd6 8.0-0 (8.c3 Nc6 9.Nbd2 Qa5+/-) 8...Nc6 9.Be3 Nb4 10.Be2 Qc7 (10...Rc8!? 11.c3 Nd5=) 11.c4+/- Nc6 (11...Bf3 12.Bf3 Qc4 13.Na3+/-) 12.d5 (12.Nbd2!? b6+-) 12...Bf3+/- 13.gf3 Ne5 14.c5 Nf5 15.Qa4 Kd8 16.Bf4 g5 17.d6 Qc6?? (better is 17...ed6 18.Be5 de5 19.Rd1 Ke7+-) 18.Qa5 b6 19.cb6 ab6 20.Qe5 Bg7 21.de7 Ne7 22.Qg7 Rg8 23.Qd4 Ke8 24.Be3 Rd8 25.Qb6 (25.Qb6 Qb6 26.Bb6+-) 1–0. Go,Benjamin (2165) – Richters,Marc (2075), 2012. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6)

5.cd6 Nc6 6.Be2 (6.Nc3 Nd6 7.Bb2 Bf5=) 6...e5 (6...Qd6 7.0-0=) 7.0-0 (7.Bb5 Nd6 8.Bc6 bc6 9.Ne5 Nb5+-) 7...Bd6=+ (worse 7...Qd6 8.d3 Nc5 9.Na3+=) 8.d3 Nf6 (8...Nc5 9.Nc3=+) 9.Nbd2 (9.Nc3 0-0=) 9...0-0 10.Nc4 Bc7 (10...Be6 11.Nd6 Qd6 12.Qd2=+) 11.Bg5 (11.Rb1 Re8=) 11...h6=+ 12.Bh4 Bf5 (12...Be6 13.Nfd2=+) 13.Nfd2= Nd4 (13...b5 14.Ne3 Nd4 15.Bf3=) 14.Bf3 Rb8 (worse 14...Nf3 15.Qf3 Bg6 16.Qb7+-) 15.Re1 Re8 16.Nb3 (16.a4=) 16...g5 (16...b5 17.Ne3 Be6 18.Rb1=+) 17.Nd4 (17.Bg3!?+=) 17...Qd4 (17...ed4 18.Bg3=+) 18.Bg3 The pressure on e5 grows 18...Bg6 (18...b5 19.c3 Qc3 20.Rc1 Qd3 21.Qd3 Bd3 22.Ne5=) 19.Ne3 (19.Rc1 Qc5=) 19...Ba5=+ 20.Rf1 h5 (20...b6 21.Qe2=+) 21.h3 b5 (21...b6 22.Qc1=+) 22.a4= Bc3 (22...ba4 23.Bc6 Re6 24.Ra4 Bb4=) 23.Ra2 (better 23.ab5!? h4 24.Bh2 Rb5 25.Bc6+=) 23...b4-/+ 24.Bc6 (24.Qc1!?-/+) 24...Re6 25.Bb5 h4 26.Bh2 Bh5 (better 26...Rd8!?-/+) 27.Qc1= Nh7 28.Bc4 Rg6 (28...Rc6 29.Nd5 Rc4 30.dc4=) 29.Nd5 Re8 30.Qe3 (30.Nc3!? bc3 31.Re1+=) 30...g4= 31.Nc3 bc3 32.Qd4 (32.Re1!? Qe3 33.Re3 (33.fe3?? gh3 34.Bd5 e4-+) 33...gh3 34.Rh3=) 32...ed4=+ 33.hg4 Bg4 34.Kh1 (34.Bd5 Nf6 35.Bb7 Re2-/+) 34...h3-/+ 35.Bd5?? (better 35.Rb1!?-/+) 35...Nf6 (35...Be6 36.Re1 Bd5 37.Re8 Kg7 38.Be5 f6 39.Re7 Kg8 40.Bd6 hg2 41.Kg1-+) 36.Bc6 (36.Bb7 Re2 37.Rc1 Be6-+) 36...Re2 (36...Be2 37.Re1 Ng4 38.Bd6-+) 37.Bb8 Nd7 38.Bd7 Bd7 39.g3? (better 39.gh3 a6 40.Kh2-+) 39...Bc6 40.Kg1 (40.Kh2 Bg2 41.Raa1 Bf1 42.Rf1-+) 40...h2! (40...h2 41.Kh2 Rh6 42.Kg1 Rh1) 0–1. Damien,Nicolas (2250) – Benmesbah,Stephane (2230), Nationale II, 2002. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

5.cd6 ed6 6.Bb5 Bd7 7.Bd7 Nd7 8.Qe2 Qe7 9.0-0 Ng5 10.Qd1 (10.Qd3 h6+=) 10...Nf3 (10...Qf6 11.Ng5 Qg5+=) 11.Qf3+= Qf6 12.Qb7 Rb8 13.Qe4 Be7 14.Nc3 0-0 15.Ba3 Rfe8? (better 15...Bd8+/-) 16.Nd5+- Qg5 17.f4 (17.Ne7?! Re7 18.Qd4 Re2 19.Bd6 Rc8 (19...Rd2?? 20.Qf4 Qf4 21.Bf4+-) 20.Qa7 Nf6+-) 17...Qg6 (17...Qh4 18.g3 Bf6 19.Qe8 Re8 20.gh4 Bd4 21.Ne3 Ba1 22.Ra1 Re4+-) 18.Ne7 Re7 19.Qe7 Qc2 (19...Nf6 20.f5 Qg5 21.Rab1+-) 20.Qd7 Qd3 21.Qd6 (21.Qd6 Rd8 22.Qd3 Rd3 23.Bb4+-) 1-0. Lana Rodriguez,D (2365) - Turzo,A (2300), Titled Tuesday 2nd June, 2020. (=1.e4 c5 2.Nf3 d6 3.b4)

5.cd6 Qd6 6.d4 Nc6 7.Ba3 (7.Bd3!? Qb4 8.Kf1+=) 7...Qd5 (7...Qf4 8.d5 Ne5 9.Bb2=) 8.Bd3 Qa5 (8...Bg4 9.c3 Ne5 10.de5+-) 9.Kf1= Nf6 (9...Ng5 10.Ng5 Qg5 11.h4=) 10.c4 (10.Qd2 Bf5=) 10...Bg4 11.Qd2 (11.d5 Ne5 12.Bb2 Nf3 13.gf3 Bh3 14.Ke2 Nh5=+) 11...Bf3 (11...Qh5 12.Be2 0-0-0 13.Bb2-/+) 12.Qa5=+ Na5 13.gf3 e6 14.Bb2 Be7 (14...Nh5 15.Bc3 Nc6 16.Nd2=+) 15.Rg1 0-0 (15...Nh5 16.Bc3 Nf4 17.Be4 Nc4 18.Bb7=+ (worse 18.Rg7 Ng6-/+)) 16.Nd2 Rfd8 17.Nb3 Nc6 18.Be4 (18.Re1 g6=) 18...Rac8 19.Ke2 (19.a3 g6=) 19...g6 (19...Nb4 20.Rgc1=) 20.Rac1 (20.a3 a6=) 20...Nh5=+ 21.Rcd1 (21.Rge1 Bb4 22.Red1 f5=+) 21...Bf6 Now all is on d4 (21...f5 22.Bb1-/+) 22.Ba1 (22.Rd2 Bg7=+) 22...Bg7=+ 23.Rg5? (better 23.Rge1!?=+) 23...f5-+ 24.Bb1 Kf7 (24...Nf4 25.Ke1-+) 25.a3 (25.Rgg1 Nf4 26.Ke3 Bh6-+) 25...Nf4-+ 26.Ke3 (26.Ke1-+) 26...Nh3 27.f4 Ng5 28.fg5 h6 29.h4 (29.gh6 Bh6 30.Ke2 Bg7-+) 29...Ne7 (29...Ne5! 30.c5-+) 30.Bd3 b6 (30...hg5 31.hg5 Rh8 32.Nc5-+) 31.a4 (31.Bb2 hg5 32.hg5 Rh8-+) 31...Rc7 (31...Rh8 32.Nd2-+) 32.a5 (32.Bb2 Nc6-+) 32...Nc8 (32...Nc6 33.ab6 ab6 34.Bb2-+) 33.c5 (33.Rb1!?-/+) 33...bc5-+ 34.Nc5 (34.dc5 Ne7 35.Bg7 Kg7-+) 34...Nd6 (better 34...Ne7 35.f4 Nd5 36.Kf3 hg5 37.hg5 Nb4-+) 35.Bc2? (better 35.f4-+) 35...Rc5! 36.dc5 Nc4 37.Ke2 Rd1 (37...Rd1 38.Bd1 Ba1 39.gh6 Na5-+) 0–1. Moroder,Stefan (2225) – Platzgummer,Fabian (2340), TCh–AUT, 2017. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

5.cd6 Qd6 6.d4 Bg4 7.c3 g6 (7...Nc6 8.Bd3 f5 9.h3+=) 8.Qb3 (8.Bd3 Nf6 9.0-0 Nc6+-) 8...Qc7 Attacks the backward pawn on c3 (8...Qb6 9.Bd3 Nd6 10.Nbd2+=) 9.Ne5 (9.Bd3 Nd6 10.Bf4 Bg7+=) 9...Be6 10.Bb5 (10.Bc4 Nd7 11.Be6 Ne5 12.de5 fe6 13.Qa4 Qc6 14.Qc6 bc6+-) 10...Nc6= 11.Qa4 Rc8 (11...Nd6 12.Nc6 Nb5 13.Ne5=) 12.Bf4 Nd6 13.Nd2 (13.Nc6 bc6 14.Ba6 Rb8=) 13...Bg7 (better 13...Nb5 14.Qb5 Qa5 15.Qb7 Qc3=+) 14.Nb3?? (14.Nec4 Bf5=) 14...0-0?? (better 14...Nb5 15.Qb5 a6-+) 15.Bc6+= bc6 16.Nc5 Bd5 (16...Qb6 17.0-0+=) 17.0-0 f6 18.Ned3 Rce8 (18...e5 19.de5 fe5 20.Be5 (20.Ne5? Rf4 21.Qf4 Rf8-+) 20...Be5 21.Ne5+=) 19.Rfe1 (19.c4 Bf7 20.Rfe1 Qc8+=) 19...Qc8 20.Bg3 Qf5 (20...Bh6 21.Nf4+= (worse 21.Qa7 Bd2=+)) 21.Nf4 (21.Nb4 Bh6 22.Nd5 Qd5+-) 21...e5 (21...Ne4!? 22.Nd5 cd5 23.Ne4 de4+-) 22.Nd5 cd5 23.Qc6 Rd8 (23...Nf7 24.Qd5 Rb8 25.Rad1+-) 24.Qd5 Nf7 25.Qe6 (25.Qc4+-) 25...Qh5 (25...Rfe8!? 26.Qf5 gf5+-) 26.Qa6 (26.Rab1 Rfe8 27.Qc4 ed4 28.cd4 Re1 29.Re1 Bf8+-) 26...Rfe8 (26...Qf5 27.Qa7 Rfe8 28.f3+-) 27.Qa7 (27.de5 fe5 28.Rab1 Qf5+-) 27...f5 28.f4 (28.f3 Qh6 29.Nb3 Bf6+-) 28...ed4 (28...Ra8 29.Qb7 e4+-) 29.cd4?? (better 29.Re8 Re8 30.Qa4+-) 29...Bd4-+ (29...Bd4 30.Bf2 Ba1 31.Re8 Re8-+) 0–1. Thybo,Thomas Sondergaard (1970) – Roseneck,Jonas (2175), World Youth Open U14, 2016. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

5.cd6 Qd6 6.d4 Bg4 7.Qd3 Nf6 8.Nbd2=.

5.cd6 Qd6 6.d4 Bg4 7.Bd3 Nf6 8.0-0 Nc6 9.c3 e6 10.Ba3 (10.Nbd2 Rc8+=) 10...Qd5= 11.Be2 Ba3 12.Na3 0-0 13.Nc2 Qa5 14.Qe1 Nd5 15.c4 (15.Ne3!? Bh5 16.Nd5 ed5 17.Qd2=) 15...Nc3-/+ 16.h3 Bf5 17.Ne3 Be4 (worse 17...Ne2 18.Qe2 Be4 19.Nc2=) 18.Nd1 Ne2 19.Qe2 Bf3 20.Qf3 Nd4 21.Qb7 Ne2 (better 21...Rab8 22.Qe7 Nb3-+) 22.Kh1=+ Qe5 23.Ne3 Rfb8 24.Qf3 Nd4 25.Qg3 (25.Qg4 Rb2=+) 25...Qa5 (25...Qg3!? 26.fg3 Rb2=+) 26.Rfb1= Rb1 27.Rb1 Rf8 28.Qd6 Ne2 (28...Qa2?? 29.Rb8 Qa1 30.Kh2+-) 29.Kh2 h6 (29...Qa2?? 30.Rb8 h6 31.Qf8 Kh7 32.Qg8 Kg6 33.Rf8+-) 30.Rb8 (30.a3 a6=) 30...Rb8 31.Qb8 Kh7 32.Qb1 Kg8 33.Qb8 Kh7 34.Qb1 f5 35.g3 Qe5 36.Qd3 Nd4 37.Nc2 Nc6 38.Kg2 Qc5 39.f4 a5 (39...Na5 40.Ne3=) 40.g4 a4 41.Ne3 Nd4 42.gf5 ef5 43.Kg3 g5 44.fg5 Qe5 45.Kg2 hg5 46.Nc2 (46.Kf2!?=) 46...Ne6-/+ 47.Qf3 (better 47.Kf1!?-/+) 47...Nf4-+ 48.Kf1 Qb2 49.Ne1 (better 49.Ne3 Qb1 50.Qd1-+) 49...Qc1?? (better 49...Qa2 50.Qb7 Kh6 51.Qc6 Kh5 52.Qe8 Kh4 53.Qh8 Nh5-+) 50.Qb7=+ Kh6 51.Qf7? (better 51.Qc6!? Kh5 52.Qa4 Nh3 53.Qe8 Kg4 54.Qe2 Kh4 55.c5-/+) 51...Ng6 52.Qf5 Qc4 53.Qd3 (better 53.Kg1 Qa2 54.Nf3 Qa1 55.Kf2-+) 53...Qf4 (better 53...Qa2 54.Qb5 Qb3 55.Qb3 ab3-+) 54.Qf3 Qd6 55.Ng2 Ne5 56.Qb3?? (better 56.Qe4=+) 56...Qf6 57.Ke2 Nc6 (better 57...ab3 58.ab3 Qf3 59.Kd2 Qg2 60.Ke3 Qh3 61.Ke4 g4 62.Ke5 Qc3 63.Ke6 Qb3 64.Kf6 g3 65.Kf5 g2 66.Kf4 g1Q 67.Ke5 Qge3 68.Kd6 Qbe6 69.Kc7 Q3b6) 58.Qe3 (58.Qa4 Nd4 59.Kd3 Nf3+=) 58...Nd4=+ 59.Kd3 Nf5 60.Qe4 Qd6 61.Kc2 (better 61.Kc4!? Qd7 62.Qd5 Qc8 63.Kb4=) 61…a3 ½-½. Demirci,Fatih (1760) - Gurbuz,Bayram (1905), TCh-TUR 2nd League, 2019. (=1.e4 c5 2.Nf3 d6 3.b4)

5.cd6 e6 6.Bd3 Nf6 7.0-0 Bd6 8.Nc3 0-0 9.Qe2 Nc6 10.Ne4 Ne4 11.Be4 Bd7 (11...Nb4 12.d4=) 12.Rb1 (12.Bh7 Kh8 13.Be4 f5 14.Bc6 Bc6+/-) 12...Rb8 (12...f5 13.Bc6 Bc6 14.Qe6 Kh8 15.Ne5+=) 13.Qd3 (13.Bh7 Kh8 14.Be4 f5 15.Bc6 Bc6+/-) 13...f5 14.Qd6 fe4 15.Ne5 Ne5 16.Qe5 Bc6 17.Ba3 Rf6? (better is 17...Rf7+=) 18.Be7!+- Qe7 19.Qb8 Rf8 20.Qa7 Qg5 21.Qe3 Qd5 22.Rb4 (22.Rb2!? Rd8+-) 22...Rd8 23.Re1 (23.Rd1 Qa2 24.Qb6 Qd5 25.Re4 Rf8+-) 23...Qd2 24.Qd2 Rd2 25.Rc4 e3 (25...Bd5 26.Rc8 Kf7+/-) 26.f3 (26.fe3?! Rg2 27.Kf1 Rh2=) 26...e2 27.Kf2 Bb5 28.Rc8 Kf7 29.c4 Bc6 30.Re2 Rd4 31.Rc2 e5 32.Ra8 e4 33.a4 ef3 34.gf3 Rd3 35.a5 Rf3 36.Ke1 Ra3 37.Kd2 g5 38.Rb2 Rh3 39.Kc1 Be4 40.Rc8 Kg6 41.c5 Re3 42.Rb6 Kh5 43.a6 ba6+/- 44.c6 Rc3 45.Kd1 a5+/- 46.Kd2 Rc5 47.Ke3 Rc4 48.Rf8 Rc6 49.Rc6 Bc6 50.Kf2 a4+= 51.Rf6 Bd5 52.Ra6 Bb3 53.Ke3 h6 54.Kd2 g4 55.Ke3 Kg5 56.Kf2 h5 57.Ke3 Kh4 58.Ra5 g3 ½–½. Mouhamad,Joachin (1975) – Jeannesson,Clement (1840), FRA–ch U16 Aix les Bains, 2009. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6 4.bc5 Ne4)

5.cd6 Nd6

6.Na3 Qa5 7.Nc4 Nc4 8.Bc4 e6 9.0-0 Ba3 (9...Bd6 10.Re1=) 10.Ba3+= Qa3 11.Rb1 Nd7 12.Ng5 Nf6 13.Bb5 Ke7 14.Rb3 Qc5 (14...Qa2 15.Re1=) 15.Nf3+= Rd8 16.d4 Qd6 17.Qc1 Bd7 18.Ne5 (18.Bd7 Rd7 19.Qg5 Kf8+=) 18...Bb5= 19.Rb5 b6 20.Rb3 Rac8 21.Rg3 (21.c3 Kf8=) 21...Rg8 (better is 21...Qd4!? 22.Nf3 Qc3 23.Rg7 Rc5=) 22.c3 (22.Qb2 Rc7+=) 22...Ne4 (22...Nd5!?=) 23.Qf4 f5 24.Qh4 Nf6 25.Re1 b5 26.Qg5 Rc7 27.Rge3 Kd8 28.Nd3 Re8 29.Nc5 Rce7 30.a4 ba4 31.Rb1 Kc8 32.Re5 Nd5 (32...Nd7 33.Nd7 Kd7 34.Rb7 Kd8 35.Rb4+/-) 33.Na4 Rc7 34.Qh5 g6 35.Qe2 (35.Qf3 Rc4 36.Nb2 Rc7+/-) 35...Nc3 36.Nc3 Rc3 37.Qb2 Qc7 38.Ree1 (38.Rb5!? Rc2 39.Rb8 Kd7 40.Qb5 Qc6 41.Rb7 Kc8 42.Qf1= (42.Ra7?? Qb5 43.Rf1 Rd8-+)) 38...Rc2 39.Qb5 Rd8?? (better is 39...Kd8=) 40.Qa6 (40.Qa6 Kd7 41.Qe6) 1–0. Keres,Paul – Turn,J, Tournament, Tallinn (Estonia), 1937. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

6.Na3 Nc6 7.Bd3 e5 8.Qe2 Be7 (8...Bg4 9.h3 Bf3 10.Qf3=) 9.Bb2 Pawn e5, live or die! (9.Ne5 Ne5 10.Qe5 0-0=) 9...f6 10.Nc4 0-0 (10...Nb4 11.Nd6 Bd6 12.Be4=) 11.0-0 (11.Nd6 Qd6 12.0-0 Be6=) 11...Nf5 (11...Be6 12.Nd6 Qd6 13.Bc4=) 12.Rab1 (better 12.Ne3 Ne3 13.fe3=) 12...b6 (better 12...Be6=) 13.Qe4+- Qd7 14.g4 b5 (14...g6 15.Nce5 (15.gf5?! gf5 16.Nce5 fe4 17.Nd7 ed3 18.Nf8 Bg4+-) 15...fe5 16.Bc4 (16.gf5?! Rf5 17.Bc4 Kf8+=) 16...Kg7 17.Ne5 (17.gf5?! Bb7+-) 17...Ne5 18.Be5 Bf6 A) 19.Qa8 Be5 20.gf5 Bb7 (20...Rf5 21.Rfe1 Rg5 22.Kf1 Qh3 23.Ke2 Qg4 24.Ke3 Qd4 25.Ke2 Qc4 26.Kd1 Qa2 27.Rb6-+) 21.Qf8 Kf8-+; B) 19.gf5?! Bb7 20.Bf6 Rf6+=; C) 19.g5+-) 15.Ne3 (worse 15.gf5 Bb7+-) 15...Ne3 16.Qh7 (16.fe3?! Qg4 17.Qg4 Bg4 18.Bb5 Rac8=) 16...Kf7 17.Bg6 (17.de3?? Qg4 18.Kh1 Qf3 19.Kg1 Qg4 20.Kh1 Rh8-+; 17.fe3?! Qg4 18.Kf2 Qa4+-) 17...Ke6 18.de3 Qc7 (18...Qb7 19.Qg7 Kd6 20.Ba3 b4 21.Rfd1 Kc5 22.Be4+-) 19.Rfd1 (better 19.Qg7!? Bd6 20.Bf5 Kd5 21.Qc7 Bc7+-) 19...Bd6 20.Nh4 Ne7 (20...Bc5+-) 21.Nf5 (21.Qg7?! Ng6 22.Qc7 Bc7 23.Ng6 Rd8 24.Rd8 Bd8+-) 21...Ng6 (21...Rd8 22.Qg7 Ng6 23.Rd6 Qd6 24.Nd6 Rd6 25.Qg6+-) 22.Rd6 Qd6 23.Nd6 Kd6 24.Qg6 (better 24.Ba3 Kc7 25.Qg7 Bd7 26.Rb5 Rfd8+-) 24...Ke6 (24...b4+-) 25.Ba3 Rd8 (25...b4 26.Bb4 Rb8 27.Qg7 Rb4 28.Rb4 Rd8+-) 26.Qg7 Rd7 27.Qg8 Rf7 28.Qe8 (28.Qe8 Re7 29.Qe7 Kd5 30.Qd6 Ke4 31.Qc6) 1–0. Janek – Wtocq, internet, 2017. (=1.e4 c5 2.b4 d6 3.Nf3 Nf6 4.bc5 Ne4)

6.Na3 Qc7 7.Bb2 Bg4 8.Be2 Nd7 9.0-0 Nf6 10.c4 Bd7 (10...e6 11.Re1+=) 11.Rc1 Rd8? (better is 11...Qb6!? 12.Be5 Rc8+=) 12.c5+- Nc8? (better is 12...Nf5 13.Nb5 Qc8 14.Na7 Qa8+-) 13.Nb5 Bb5 14.Bb5 Nd7 15.Ne5 h5 (15...a6 16.Qf3 Qe5 17.Bd7 Rd7 18.Be5 f6+-) 16.Qb3 e6 17.c6 bc6 18.Rc6 Qb7 (18...Qc6 19.Nc6 Nd6 20.Nd8 Kd8 21.Bd7 Kd7 22.Qa4 Kd8 23.Qa5 Ke8+-) 19.Re6 (19.Re6 Ne7 20.Re7 Ke7 21.Ba3 Kf6 22.Qf7 Ke5 23.Re1 Qe4 24.f4 Kd4 25.Qc4) 1–0. Keres,Paul – Herseth,S, Olympiad, Stockholm (Sweden), 1937. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

6.Bb2 Nc6 7.Bd3 f6 8.0-0 e5 9.Re1 Be7 10.Qe2 (10.Nc3 Be6=) 10...0-0 11.Nc3 Be6 12.Ne4 Nf5 (12...Rc8 13.Nd6 Qd6 14.Be4=) 13.Ng3 (13.Bc4 Qc8=) 13...Nfd4 (better 13...Ng3!? 14.hg3 Rc8=+) 14.Nd4+= Nd4 15.Qe4 g6?? (better 15...f5 16.Qe5 Bf6+/-) 16.Bd4+- Bd5 17.Qe2 Bd6 18.Bc3 Re8 19.Bc4 Bc7 20.Bd5 Qd5 21.Qe4 Qf7 (21...Qe4 22.Ne4 Kf7 23.Rab1+-) 22.Rab1 (22.Qb7!? f5+-) 22...b6 23.Qa4 Rad8 24.Qa7 e4 (24...Ra8 25.Qb7 Ra2 26.Rb2 Rb2 27.Bb2+-) 25.Qa4 (25.Re4?! Re4 26.Qa6 Ree8=) 25...f5 26.Qb3 (26.a3 Ra8 27.Qd4 Be5+-) 26...Rd5 (26...Qb3 27.Rb3 Kf7 28.Ne2+-) 27.d3! b5 (27...ed3 28.Re8 Decoy) 28.de4 fe4 (28...Rc5 29.Qa3 Rc6 30.ef5 Bg3 31.hg3 Rec8 32.fg6 Qg6+-) 29.Ne4 h6 (29...Kf8 30.Qa3 Re7+-) 30.Nf6 (30.Nf6 Kg7 31.Nd5 Be5 32.Re5 Re5 33.Be5 Kh7 34.Qb5 Kg8 35.Qb8 Qf8 36.Rb7 Qb8 37.Nf6 Kf8 38.Bb8 g5 39.Bd6) 1-0. Blitzstream_twitch (2405) - skopje123 (2390), Rated Bullet game, lichess.org, 2015. (=1.e4 B50: Sicilian: 2...d6, Miscellaneous 1...c5 2.Nf3 d6 3.b4)

6.c4 Nc6 7.Nc3 (7.Bb2 Bg4=) 7...e5=+ 8.d4 ed4 9.Nd4 Be7 10.Nc6 bc6 11.Be2 0-0 12.0-0 Qa5 (12...Bf6 13.Ba3 Be5 14.Rc1=) 13.Bd2= Rd8?? (better 13...Qc5 14.Be3 Qa3=) 14.Nd5+- (14.Nd5 Qa6 15.Ne7 Kh8 16.Bg5+- (worse 16.Nc8 Qc8 17.Bd3 Nb7+-)) 1-0. Novikov,E (2275) - Daianu,C (2215), Titled Tuesday 2nd Feb, 2021. (=1.e4 c5 2.Nf3 d6 3.b4)

6.h3 Nc6=+ 7.d4 (7.Nc3 g6=+) 7...g6-/+ 8.Be2 Bg7 9.0-0 0-0 10.Bf4 Qb6 Can d4 get defended? (10...Be6 11.c3 Qa5 12.Qc1=+) 11.c3 (11.Nc3 Qa5 12.Bd2 Bf5=+) 11...Qb2-/+ 12.Nbd2 Qc3 13.Nb3 (13.Rc1 Qa3-/+) 13...Qb4 (13...Bf5 14.Rc1 Qb2 15.g4-/+) 14.Bd2 (14.a3 Qa4 15.Nc5 Qd1 16.Rfd1-/+ (16.Bd1? b6 17.Nb3 Be6-+)) 14...Qb6 (14...Qa4 15.Nc5 Qd1 16.Rfd1 Nd4 17.Nd4 Bd4 18.Rac1-/+) 15.Rc1 (15.d5 Ba1 16.Qa1 Nb4-+) 15...Be6 16.Nc5 Nd4 (16...Ba2?! 17.Nd7 Bb3 18.Qe1=+; worse 16...Bd4 17.Na4 Qd8 18.Rc6 Bf2 19.Rf2 (worse 19.Kf2 Ne4 20.Kg1 bc6=+) 19...bc6 20.Nc5+=) 17.Be3 N4f5 18.Bf4 (better 18.Bg5 Rac8 19.Ne6 Rc1 20.Qc1 fe6 21.Bd3-+) 18...Ne8 (18...Rac8 19.Ne6 Rc1 20.Bc1 fe6 21.Bd3-+) 19.Qe1 (19.Bd3 Rd8 20.Re1 Nd4-/+) 19...Rc8-/+ (19...Ba2?! 20.Nd7 Qb2 21.Nf8 Kf8 22.Bd3=) 20.Na4? (better 20.Ne6!? Rc1 21.Qc1 Qe6 22.Bc4-/+) 20...Rc1-+ 21.Qc1 Qa5 22.Nc5 Qa2 23.Qd1 (23.Ne6 Qe6 (23...Qe2?! 24.Re1 Qb5 25.Nf8=+) 24.Bc4 Qb6-+) 23...Bc4 (23...Ned6 24.Ne6 fe6 25.Qd3-+) 24.Bc4 (24.Re1 Ned6-+) 24...Qc4 25.Nd7 (25.Qc1 Qb5 26.Ne4-+) 25...Qf4 26.Nf8 Kf8 27.Qd8 (27.g3 Qc7-+) 27...Nfd6 (27...Nd4 28.Rd1 Nf3 29.gf3 Qf3 30.Rd3-+) 28.Re1 (28.Qa5 a6-+) 28...Bf6 (28...e5 29.Qg5-+) 29.Qa8 (29.Qa5 a6-+) 29...a6 30.Re3 (30.Qa7 e5-+) 30...Kg7 31.g3 (31.Re2 e5 32.Qa7 Qa4-+) 31...Qc4 32.Ne5 (32.Qb8 Nf5 33.Re1 Ned6-+) 32...Qc1 33.Kg2 Nf5 34.Re4 (34.Re2 Ned6 35.Nf3-+) 34...Nfd6 (better 34...Qb1 35.Rc4 Be5 36.Qe8 Qa2-+) 35.Re2?? (35.Re3 e6 36.Qb8-+) 35...Qd1-+ (35...Qd1 36.Re3 Nf5-+) 0–1. Sosa,Tomas (2265) – Kropff,Ricardo (2215), Asuncion PAR, Aniversario ABC COLOR, 2013. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

6.d4 g6

7.c4 Bg7 8.Bb2 0-0 9.Be2 Bg4 10.Qd2 (better 10.Nbd2!?=) 10...Bf3-/+ 11.Bf3? (better 11.gf3 Nc6 12.d5-/+) 11...Nc4-+ 12.Qc2 Nb2 13.Qb2 (13.Bb7 Qd4 14.0-0 Qd3-+) 13...Nc6 (13...Qd4 14.Qd4 Bd4 15.Bb7-+) 14.Qb7 (14.Bc6 Qd4 15.Qd4 Bd4 16.Bb7 Rab8-+ (16...Ba1?! 17.Ba8 Ra8 18.Ke2-/+)) 14...Qa5 (14...Nd4 15.Nc3 Nc2 16.Kf1 Na1 17.Qa8 Qd3 18.Be2 A) worse 18...Bc3 19.Qf8 (19.Bd3?? Ra8 20.Ke2 Rb8-+) 19...Kf8 20.Bd3+/-; B) 18...Qc3-+) 15.Nd2 Nd4 (15...Bd4?! 16.Rd1 Ne5 17.0-0-/+) 16.Rd1 Nc2 (16...Bh6 17.Bg4 f5 18.Bf3-+) 17.Kf1? (17.Ke2-+) 17...Rad8 (17...Qa2?! 18.Qe7 Rad8 19.g3-+) 18.Nb3 (18.g3 Rd2 19.Rd2 Qd2 20.Qe7-+) 18...Rd1 19.Bd1 Qe1 0-1. Akhayan,R (2255) - Diaz Rosas,J (2365), Titled Tuesday, 2020. (=1.e4 c5 2.Nf3 d6 3.b4)

7.Bc4?? Nc4-+ 8.0-0 (8.Nbd2 Nb6-+) 8...Bg7 9.c3 (9.Na3 Nb6-+) 9...0-0 10.Qd3 (10.Bf4 Nc6-+) 10...Nd6 11.Nbd2 (11.Bf4 Bf5 12.Qe2 Nc6-+) 11...Nc6 12.Re1 (12.Ba3 Bf5 13.Qe3 Nb5-+) 12...Bf5 13.Qe3 Re8 (better 13...Qa5 14.Bb2-+) 14.h3 (14.Ba3 Nb5 15.Bb2 Nc7-+) 14...Rc8 (better 14...e5!? 15.d5 e4 16.Nd4 Nd4 17.cd4-+) 15.g4 (15.Ba3 b5-+) 15...Bd7 (better 15...Be6 16.a4-+) 16.Nf1 (16.Qd3 h5 17.Ne5 hg4 18.hg4 Ne5 19.de5 Nb5-+) 16...Nc4 (better 16...e5!? 17.Bd2-+) 17.Qe2 (17.Qd3 N6a5 18.Ne3 Bc6 19.Nc4 Nc4 20.Qc4 Bf3-+) 17...b5 18.Bg5 (18.N1d2 Be6-+) 18...h6 (18...Qa5 19.Qd3-+) 19.Bh4 Qa5 20.Rac1 (20.Ne3 Ne3 21.Qe3 e5-+) 20...e6 (20...f5!? 21.g5 e5 22.N1d2-+) 21.Ne3 (21.N1d2 Ne7-+) 21...Ne3 22.fe3 Ne7 (22...Qa3 23.Rf1-+) 23.Ne5 (23.Qd2 Qc7-+) 23...Be5 24.de5 Nd5 (24...g5 25.Red1 Qa3 26.Be1-+) 25.e4 Nf4 (25...Nc3 26.Qd2 Qc7 27.Qh6 Qe5 28.Qd2-+) 26.Qf3 (26.Qe3 g5 27.Bg3 Ng6-+) 26...g5 27.Bg3 Ng6 28.Rf1 (28.Red1 Bc6-+) 28...Rf8 29.Rc2 (29.Rfd1 Bc6 30.Rd2 Qa3-+) 29...Rc4 30.Bf2 (30.Rd1 Bc6 31.Rd4 Qb6-+) 30...Bc6 (30...Qc7!? 31.Rd2-+) 31.Bd4 Qc7 32.a3 (32.Rd2 Rd8 (worse 32...Ne5 33.Qg3 Rd4 34.cd4-+) 33.Qe3 Qb7-+) 32...Qb7 (32...Ne5?! 33.Qg3 Be4 34.Be5 Qb6 35.Rcf2-+) 33.Re2 (33.Re1 Rd8 34.Rb2 Nf4-+) 33...a5 (33...Nf4 34.Ree1-+) 34.h4 (34.Rfe1 Ra4 35.Ra2 Rd8-+) 34...Nh4 35.Qf6 (35.Qe3 Ng6-+) 35...Ng6 (35...Be4!? 36.Qh6 Bd3 37.Qg5 Ng6 38.Qe3 Be2 39.Qe2-+) 36.Rh2 Qe7 37.Rh6 (37.Qe7 Ne7 38.Rh6 b4 39.ab4 ab4-+) 37...Qf6 (37...Be4?? 38.Rg6 Bg6 39.Qe7+-) 38.ef6 (38.Rf6 Nf4 39.Kf2-+) 38...Rd4! 39.cd4 Be4 40.Rh5 b4 41.Rg5 (41.ab4 ab4 42.Rg5 b3-+) 41...b3 (41...ba3?! 42.Ra5 Rd8 43.Rd1-+) 42.Rf2 Bc2 43.Rb5 a4 (43...Rd8 44.Rh2-+) 44.Rh2 (44.Rb4 Rd8-+) 44...e5! 45.de5 Rd8 46.Rh6 (better 46.e6 fe6 47.Kf2-+) 46...Ne5! 47.Kg2 (47.Re5 Rd1 Decoy (47...b2 Passed pawn)) 47...Ng6 (47...Re8!? 48.Kg3-+) 48.Kg3 (48.Rb4 Bd3-+) 48...Be4 (better 48...Re8-+) 49.Kf2?! (49.Rb4 Re8-+) 49...Bc6 (49...Nf4!? 50.Kg3 Nd5 51.g5-+) 50.Rb6 Be8 51.Ke3 (51.g5 Ne5 52.Kg3 Bd7-+) 51...Kf8 (51...Ne5 52.Rb4 b2 53.Ke2-+) 52.Rh2 (52.Rh5 Rc8-+) 52...Rc8 (52...Bd7 53.g5-+) 53.Kd3 (53.Rb4 Bd7-+) 53...Bd7 (53...Kg8 54.Kd4-+) 54.Rb4 Ke8 55.Re2 (55.Ke3 Kd8-+) 55...Kd8 56.Rd4 (56.Re1 Rc2-+) 56...Rc1 57.Rb4 (57.g5-+) 57...Nf4! 58.Rf4 Bb5 59.Ke3 Be2 60.Ra4 b2 (60...b2 61.Rb4 b1Q 62.Rb1 Rb1 63.Ke2 Rb3-+) 0–1. Brankovic,Dusan (2155) – Novakovic,Sl (2090), Open Skopje MKD, 1998. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

7.Bd3 Bg7 8.h3 0-0 9.0-0 Nc6 10.c3 e5 11.de5 Ne5 12.Ne5 Be5 13.Bh6 Re8 14.Re1 Bf5 15.Bf1 (15.Be3 Qf6-/+) 15...Qh4 16.Qc1 (16.Be3 Re6-/+) 16...Ne4 17.Be3 Rac8 (17...Rec8!? 18.g3 Qf6-/+) 18.Ba7= Bf4 (18...Re7 19.Qb2 Qf4-+ (19...Bc3 20.Nc3 Nc3 21.g3+-)) 19.Qa3?? (better 19.Qb2+=) 19...Ra8-+ 20.Bb5 Re5 21.c4? (21.Bf1 Bh3! 22.Re4 Re4-+) 21...b6! 22.Bc6 (22.Bb6 Ra3 Pinning (22...Ra3 Deflection)) 22…Qf2 (22...Qf2 23.Kh1 Qe1) 0-1. Shirazi,K (2355) - Gukesh,D (2560), Speed Chess Super Swiss, 2020. (=1.e4 c5 2.b4 d6 3.Nf3)

7.Be2 Bg7 8.0-0 0-0 9.c4 (better 9.Bf4!?=) 9...Nc6 10.Bb2 Bg4 (better 10...Nf5!?-/+) 11.Nbd2= Nf5 Now all is on d4 (better 11...Rc8=) 12.Qb3 (better 12.Rb1+=) 12...Ncd4 13.Nd4 Nd4 14.Bd4 Qd4 15.Bg4 Qg4 16.Rae1 Rad8 17.Ne4 b6 18.c5 bc5 19.Nc5 Qd4 (19...Qh5 20.Rc1-/+) 20.Ne4 (20.Nb7 Rde8-/+) 20...e6 21.Re3 (21.Qf3 Qd5-/+) 21...Rb8-+ 22.Qa3 Rfd8 23.h3 Bf8 24.Qa6 Rb2 25.a3 Bg7 26.Qc6 Bh6 (26...Be5 27.Qa6-+) 27.Rf3-/+ Bg7 28.Ng5?? (28.Re3 Be5 29.Qa6-+) 28...Qd7 (28...Bf6 29.Ne4 Be5 30.Re3-+) 29.Qa6 (29.Qc1!? Rf8 30.Rd1-/+) 29...Qb5-+ 30.Qb5 Rb5 31.Nf7 (better 31.h4 Rb7 32.Re1-+) 31...Rd7 32.a4 (32.Rc1 Rf7 33.Rf7 Kf7 34.Rc7 Kg8 35.Ra7 Bd4-+) 32...Ra5 33.Re3 (33.Rf4 Rf7 34.Re4 Rd7-+) 33...Rf7 (33...Kf7 34.Rfe1-+) 34.Re6 (34.Re4 Rd7-+) 34...Ra4 35.g3 (35.Re8 Rf8 36.Re7 Ra2-+) 35...Ra2 36.Re8 Bf8 (36...Rf8 37.Rf8 Kf8 38.Rd1-+) 37.Kg2 (37.Rc8 a5 38.f4 a4-+) 37...Kg7 38.Rc8 a5 39.g4 (39.Kg1 a4-+) 39...a4 40.Kg3 (40.g5 Rd2-+) 40...Bd6 41.f4 (41.Kg2 a3 42.Rcc1 Be5-+) 41...Ra3 (better 41...Bf4 42.Rf4 Ra3 43.Kg2 Rf4-+) 42.Kh4 (42.Kg2 Bf4 43.Rf3 Ra2 44.Rf2 Rf2 45.Kf2 a3-+) 42...Rf4 (42...h6 43.Rc5 g5 44.fg5 Kg6 45.Rf4 Bc5 46.Rf6 Rf6 47.gf6 Bf2) 43.Re1 (43.Rf4 Bf4 44.g5-+) 43...Rf7 (43...Rc4 44.Rg8 Kg8 45.Kg5 Kg7 46.Re5 Be5 47.h4 h6) 44.Rc6 (44.Re3 Re3 45.Rg8 Kg8 46.Kg5 Be7 47.Kh6 Rh3) 44...Bg3 45.Kg5 h6 0-1. Bordi,K (2285) - Kalashian,D (2395), Titled Tuesday 2nd Feb, 2021. (=1.e4 c5 2.Nf3 d6 3.b4)

7.Be2 Bg7 8.0-0 Nc6 9.Bf4 Bg4 10.c3 0-0 11.Nbd2 Rc8 12.Qa4 Qd7 13.Qa3 Ne8 14.h3 Bf5 15.g4 (15.Nb3 Nd6=) 15...Be6= 16.Rfe1 Nf6 17.Ng5 Nd5 18.Ne6 fe6 19.Be3 e5 20.Nb3 ed4 21.cd4 Ne3 22.fe3 Kh8 23.Rad1 Bh6 24.Rd3? (better is 24.Bc4+=) 24...Qc7-+ 25.e4 Qf4 26.Rf1 Qe4 27.Qb2 Be3 28.Kh2 Nb4 29.Rc3 Bf4 30.Kg1 Rc3 31.Qc3 Be3 32.Kh2 Rf1 0–1. Rubach,I – Reddmann,H, Hamburg–ch, 1989. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

5.cd6 e6

6.Bb2 Nc6 7.Bb5 Qb6 8.Qe2 Nd6 9.Nc3 Be7 10.Rb1 0-0 11.0-0 Nb5 12.Nb5 Bd7 13.Na3 Qa5 14.Nc4 Qa6 (14...Qa2?? 15.Ra1 Qa1 16.Ra1+-) 15.Qe4 Rfd8 (15...Qa2?? 16.Ra1 Qa1 17.Ra1+-) 16.d3 Rac8 (16...Qa2?? 17.Ra1 Qa1 18.Ra1+-) 17.Rfe1 (17.a3 Qa4+=) 17...Qa4 (17...b5 18.Ne3-/+) 18.Qe2 (18.Nd6 Qe4 19.Ne4 f6=) 18...b5-/+ (18...Qa2?? 19.Ra1 Qa1 20.Ra1+-) 19.Ne3 Be8 (19...Qa2 20.Ne5-/+) 20.a3= Bc5 21.Nd1 Nd4 (21...Qa5 22.Bc3 Qa6 23.Qd2 Ba3 24.Qg5+=) 22.Nd4 (better is 22.Bd4 Bd4 23.Rb4 Rc2 24.Qe4 Bf2 25.Nf2 Qa3 26.Ng5 Rf2 27.Kf2 Qd3 28.Qd3 Rd3 29.Ra1+-) 22...Bd4+= 23.Bd4 (23.c3!? Bf6 24.Rc1-/+) 23...Rc2-/+ (worse is 23...Qd4 24.Rb4 Qf6 25.Rb3+=; 23...Rd4?! 24.Rb3=) 24.Nb2 Re2 25.Na4 Re1 26.Re1 Rd4 27.Nb2 b4 28.a4 Kf8 29.Kf1 Rd5 30.Rc1 Ra5 31.Rc4 Ba4 32.Rb4 Bc6 33.Ke2 (33.f3 Ra2-+) 33...Ra2 (33...Bg2 34.Nc4 Ra2 35.Ke3-+) 34.f3 (34.g4 a5 35.Rb8 Ke7-+) 34...a5 35.Rb8 Ke7 36.Ke3 a4 37.Kd4 (37.h4 Bd5 38.Kd4 a3-+) 37...Bd5 38.Rb5 (38.h3 a3 39.Nc4 Bc4 40.dc4 Rd2 41.Ke4 a2-+) 38...a3 39.Nc4 Rg2 0–1. Corte,C – Pelikan,J, Margate, 1942. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

6.Bb5 Bd7= 7.a4 Bd6 8.Qe2 Nf6 9.0-0 0-0 10.d4 Nc6 11.Rd1 (11.Nbd2 a6 12.Bd3 Bb4+=) 11...h6 (11...a6 12.Bd3=) 12.Ne5 (12.Nbd2 a6 13.Bd3 Qc7=) 12...Rc8 (12...Qc7 13.Bb2=) 13.c4 Ne7 14.Nd7 Nd7 15.c5 Bb8 (15...Bc7 16.Nc3 Nf6 17.Bc4+=) 16.Bd3 (16.Nc3 Nf6+=) 16...Nf6 (16...e5!? 17.Qe4 Ng6+=) 17.Nc3+= a6 (17...Ned5 18.Nd5 Qd5 19.a5+=) 18.g3 Ned5 (18...Qd4?? 19.Bh7 Kh7 20.Rd4 Rc5 21.Ba3+-) 19.Ne4 Qd7 20.Qf3 (20.Nf6!? Nf6 21.Rb1+/-) 20...Ne4+= 21.Be4 Rfd8 (21...f5 22.Bc2+=) 22.Bd2 b6 (22...Bc7 23.Rdc1+/-) 23.cb6 (better is 23.Bd5!? Qd5 24.Qd5 Rd5 25.cb6+-) 23...Nb6+= 24.Ba5 Bc7 25.Bb7 Rb8 26.Ba6 Ra8 (26...Nd5 27.Bb5 Qe7 28.Bc7 Qc7 29.Rac1+/-) 27.Bb5 Qe7 (27...Qd5 28.Qd5 Nd5 29.Bc7 Nc7+/-) 28.Bb6 (better is 28.Be1!?+-) 28...Bb6+= 29.Bc6 Ra5 30.Rab1 Rf5 31.Qe3 (31.Qg4 Qa7 32.Rb4 Rf6+=) 31...Qa7= 32.Rb4 Rd6 (32...e5!? 33.Be4 Rf6=) 33.Be4+= Ra5 34.Rc4 (34.Qe2!?+/-) 34...Ra4= 35.Rc8 Rd8 36.Qc3 g6 (36...Qe7=) 37.Qc6 (better is 37.Rd8!? Bd8 38.d5=) 37...Rc8-/+ 38.Qc8 Kg7 39.d5?? (better is 39.Kg2-/+) 39...Re4-+ (worse is 39...Bf2 40.Kg2 Re4 41.Qc2-+) 40.de6 (40.Qc2 ed5 41.Rd5 Qe7-+) 40...Re6 41.Rd7 Qa1 42.Kg2 Qf6 43.Qc2 Qe5 44.Qd2 Qe4 45.Kh3 Re5 46.f4 Rh5 47.Kg4 Qe6 48.Kf3 Rh2! 49.Qc3 Qf6 50.Qf6+= Kf6 51.Rd6 Kg7 52.Rb6 h5 53.Rd6 Rc2 54.Rd3 ½–½. Svoboda,Jaroslav – Vohnout,Pavel, Klatovy op, 1995. (=1.Nf3 c5 2.e4 d6 3.b4 Nf6 4.bc5 Ne4)

6.c3 Qd6? 7.Qa4 Bd7 8.Qe4+-.

6.c3 Bd7 7.d4 Bd6 8.Bd3 Nf6 9.0-0 h6 (9...0-0 10.Qe2=) 10.c4 (10.Nbd2 0-0+=) 10...0-0= 11.Nc3 Nc6 12.Rb1 b6 13.Qe2 Re8 14.Ne4 Ne4 15.Be4 Rc8 16.Rd1 Qc7 17.Be3 Re7? (17...f5 18.Bd3=) 18.Rbc1 (18.c5 bc5 19.dc5 Be5+-) 18...Qb8 (18...Ree8 19.c5 bc5 20.dc5+=) 19.Bb1 (19.c5 bc5 20.dc5 Bc7+-) 19...f5 20.c5 bc5 21.dc5 Bc7 22.a3 e5? (better 22...Ne5!? 23.Nd4 Nc6+=) 23.Rd7!+- Rd7 24.Bf5 Rcd8 (24...Rf7 25.Be6+-) 25.Qc4 Kf8 26.Bd7 Rd7 27.Nh4 Qe8 28.g3 (28.Qe4 Qe6+-) 28...Bd8 (28...e4!?+-) 29.Nf5+- Qh5 (29...Qg6 30.Nd6+-) 30.Nd6 (30.Qe6!? Qf7 31.Ng7 Bg5 32.Bg5 hg5 33.Qc6 Kg7+-) 30...Be7?? (better 30...Qf3+-) 31.Qe6 (31.Qe6 Rc7 32.g4+-) 1–0. Hoogendoorn,Joost – Muis,Gerrit Meine, Soest op, 2001. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4 5.cd6 e6)

6.c3 Nd7 7.d4 Bd6 8.Bd3 Nef6 9.Nbd2 0-0 10.Nc4 Be7 11.0-0 b6 12.Bf4 Nd5 13.Bd6 Bb7 14.Qd2 Rc8 15.Rac1 b5 16.Be7 Qe7 (worse 16...Ne7 17.Nd6 Rb8 18.Ng5+-) 17.Na5 Ba6 Attacking the backward pawn on c3 18.a4 Qd8 19.ab5 Qa5 c3 becomes the focus of attention 20.ba6 Rc3 21.Rc3 Qc3 22.Qc3 Nc3 23.Rc1 Nd5 24.Be4 (24.Ne5 Ne5 25.de5 f6+=) 24...N7f6= 25.Bd3 Nd7 26.Bb5 N7b6 27.Ne5 Rc8 28.Rc5 Kf8 29.Nc6 Rc7 30.Kf1 Nd7 31.Rc2 Nb8 32.Rc5 Nc6 33.Bc6 Ke7 34.Bb5 (better 34.Bd5!? Rc5 35.dc5 ed5 36.Ke2+=) 34...Kd6-/+ 35.Bd3 g6 36.Rc7 Kc7 37.Ke1 Kb6 38.Kd2 Nb4 39.Bc4 Na6 40.d5 Nc7 41.de6 Ne6 42.h4 Kc5 43.Kc3 Nf4 44.Bf7 (better 44.g3!? Nd5 45.Kb3-+) 44...Ng2 45.h5 gh5 46.Bh5 Nf4 47.Bf3 Nh3 48.Be4 (48.Kd3 Nf2 49.Ke3 Nh3-+) 48...h5 (48...Nf2?! 49.Bh7 Ng4 50.Kb3-/+) 49.Kd2 Kd4 (49...Nf2 50.Bg6 h4 51.Ke3-+) 50.f3 Nf4 51.Ke1 a5 52.Bc6 h4 53.Kf2 Kc5 54.Bd7 Kb4 55.Ke3 (55.Be8 a4-+) 55...h3 (55...h3 56.Kf4 h2-+) 0–1. Go,Benjamin (2140) – Senders,Mischa (2055), 1nd Groningen Netherlands, Open, 2013. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4 5.cd6 e6)

6.c4 Bd6+= 7.d4 (7.Qc2 Nf6+=) 7...Nc6 (7...Bb4 8.Nbd2 Nc6 9.Qc2-/+) 8.a3 (8.Bd3 Bb4 9.Kf1 Nf6=) 8...0-0 (8...Qa5 9.Bd2 Nd2 10.Nbd2-/+) 9.Bd3 Nf6 10.Bb2 e5 (better is 10...Qa5!? 11.Bc3 Qh5=) 11.de5+/- Re8 12.0-0 1–0. Rivise – Rather,J, New York, 1946. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4)

6.Bd3 Nf6 7.0-0 Bd6 8.Re1 0-0 9.Bf1 Nc6 10.d4 b6 11.Nbd2 Bb4 12.Bb2 Bb7 13.a3 Bd6 14.Nc4 Bc7 15.Nce5 Ne5 16.Ne5 Ne4 17.f3 Nd6 18.Qd2 Nf5 19.Bd3 Qh4 20.Bf5 ef5 21.Qf2 (better is 21.Qd3!?+=) 21...Qh5 22.g4 fg4 23.fg4 Qh6 24.Bc1 Qd6 25.c4 (25.Bf4!? Qd5 26.Kf1-+) 25...f6-+ 26.Nf3 Bf3 27.Qf3 Qd4 28.Be3 Qc4 29.Rac1 Qf7 30.Rc2 Be5 31.Rec1 (31.Bf4 Bf4 32.Qf4 Rac8-+) 31...Rae8 32.Bf2 Qg6 33.Rc6 h5 34.h3 Rd8 35.Kh1? (35.Rd1-+) 35...Rd3 36.Qg2 Rfd8 37.Rc8 hg4 38.Qa8 (38.Qg4 Qg4 39.Rd8 Rd8 40.hg4 Rd2 41.Rc8 Kh7-+) 38...Qe8 (better is 38...Kh7 39.Rd8 Rd8-+) 39.hg4 Qe7 40.Kg2 Kf7 41.a4 Rc8 42.Rc8?? (42.Qc8 Qb4 43.Re1-+) 42...Qb4 43.Qb7 (43.Rc1 Qg4 44.Kf1 Rd2-+) 43...Kg6 (43...Kg6 44.Rc1 Qg4 45.Kf1 Rf3-+) 0–1. Spelec,D (1965) – Skuhala,Jernej (2160), 19th Pirc Open, 2015. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4 5.cd6 e6)

6.Bd3 Nf6 7.Nc3 Bd6 8.Rb1 Nc6 9.Ne4 Be7 10.0-0 0-0 11.Re1 b6 12.Nfg5 Ne4 13.Be4 Bg5 14.Bc6 Rb8 15.Ba3 Be7 16.Bb2 Bb7 17.Be4 Bf6 18.Ba3 Be7 19.Rb3 Ba3 20.Ra3 Be4 21.Re4 Rb7 22.Rg3 g6 23.h4 (23.Rb3 Rc7=) 23...Rd7 24.d3 Rd4 25.Rge3 Re4 26.Re4 Qd5 27.Ra4 Qd7 28.Qg4 Rc8 29.Rd4 (29.Rc4 h5 30.Qf4 Rc4 31.Qc4 Kg7=) 29...Qe7 (29...Qb5 30.c4 Qb1 31.Kh2 Qa2 32.Qf3+=) 30.Qe2 (30.Rc4 Re8=) 30...Rc5 31.g3 Qc7 32.c4 h5 33.Qf3 Rf5 34.Qa8 Kh7 35.Re4 (35.Qe4 Kg7=) 35...Qc5 (35...Qd7!? 36.Re3 Qa4-/+) 36.Re2= Qd4 37.Qe4 (worse is 37.Qa7 Qd3 38.Rb2 Qd1 39.Kg2 Qd4 40.Qb6 Rf2 41.Kg1 Qb6 (41...Qb2?! 42.Qf2 Qc1 43.Kg2 Qc4 44.Qf7 Kh8 45.a3=) 42.Rb6 Ra2-/+) 37...Qe4 38.Re4 Ra5 39.Re2 Kg7 40.d4 Kf6 41.Rc2 Ke7 42.Kf1 Kd6 43.Ke2 Ra3 ½–½. Alekhine,Alexander – Carls, Krakau, 1941. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4 5.cd6 e6)

6.Be2 Bd6 7.0-0 0-0 8.d4 b6 9.Bd3 Bb7 10.Qe2 Nf6 11.Nbd2 Qc7 12.Nc4 Bf4 13.Ba3 (13.Bf4!? Qf4 14.Qe3=) 13...Rd8 14.Nce5 Nc6 15.Nc6 Qc6 16.Rad1 (16.Rfd1 Nd5 17.Bb2 Nb4-/+) 16...Nd5 (16...Ng4 17.Be7 Nh2 18.Bd8 Rd8 19.d5 Rd5 20.g3 Nf1 21.gf4-/+) 17.Bb2 (17.Qe4!? f5 18.Qe1+=) 17...Nb4-/+ 18.Rfe1 Nd3 19.cd3 (better is 19.Qd3!? Rac8 20.c3-/+) 19...Rac8-+ 20.Bc1? (better is 20.Rb1-+) 20...Bc1 21.Rc1 Qc1 22.Rc1 Rc1 23.Ne1 Bd5 (23...Rd4?! 24.Qe3 Rd1 25.h3-+) 24.h3 Ra1 25.a3 Rc8 26.Kh2 Ra3 27.Nf3 (27.f4 a5-+) 27...Ra2 28.Nd2 (28.Qe5 Rf2 29.Kg3 Rb2-+) 28...h6 (28...f5 29.Qd1 Rcc2 30.Qh5-+) 29.Qe3 (29.Qd1 Rcc2 30.Ne4 f5-+) 29...Rcc2 30.Ne4 f5 31.Nf6 gf6 32.Qh6 Rf2 33.Qg6 Kf8 34.Qf6 Ke8 35.Qg6 Kd7 36.Qf7 Kc6 37.Qe8 Kb7 38.Kg3 Rg2 39.Kf4 Rg7 40.h4 (40.Qh8 Rag2 41.Qh6-+) 40...Re2 41.Qh5 Rg4 0–1. Vasconcellos,F – Eliskases,Erich, Zt, Mar del Plata (Argentina), 1951. (=1.e4 c5 2.Nf3 d6 3.b4 Nf6 4.bc5 Ne4 5.cd6 e6)

3.Nf3 Bg4

4.Bb5 Nd7 5.0-0 a6 6.Bc4 (6.Bd7 Qd7 7.bc5 dc5=) 6...Ngf6 (worse is 6...cb4 7.Bf7 Kf7 8.Ng5 Ke8 9.Qg4+/-) 7.Re1 Ne5 8.Ne5 de5 9.f3?? (better is 9.Be2 Be2 10.Qe2 cb4 11.a3+=) 9...Qd4-+ 10.Kh1 Qa1 (10...Qc4?! 11.fg4 cb4 12.Bb2 Ne4 13.Qf3-/+) 11.c3 (11.fg4 Qb1 12.bc5 Qb4-+) 11...Qb1 12.fg4 cb4 (12...b5 13.g5 bc4 14.gf6 Qa2 15.fg7 Bg7 16.bc5-+) 13.Qf3 (13.Qa4 Kd8 14.Qa5 Kd7 15.Bf7 bc3 16.Qe5-+) 13...bc3 14.g5 (14.dc3 h6-+) 14...Qb4 (better is 14...cd2!? 15.Bd2 Qc2 16.Qe2-+) 15.d3 Nd7 16.Qf7 Kd8 17.Qe6 (17.Bd5 Rc8-+) 17...Qd6 18.Qh3 Kc7 (18...Rc8 19.Be6-+) 19.Be3 Nc5 (better is 19...b5 20.Bd5 Rc8 21.g6-+) 20.Rc1 Na4 (20...e6 21.Rc3 Kd8 22.g6-+) 21.Bb3 Qa3 (better is 21...b5-+) 22.Ba4 Qa4 23.Rc3 Kd8 24.Bb6 Ke8 25.g6?? (better is 25.Rc8 Rc8 26.Qc8 Kf7 27.Qf5 Ke8 28.Qc8 Kf7 29.Qf5 Ke8 30.Qc8=) 25...Qd7 26.Qh5?? h6 27.Qe5 Qd6 28.Qa5? Qg6 29.d4 e6 30.Qa4 Kf7 31.Qc2 Be7 32.Rc7 Rhf8 33.Qe2 Rac8 0–1. Lang,Gusztav Jr – Suket,Mark, Szombathely op, 2004. (=1.e4 c5 2.b4 d6)

4.Bb5 Nd7 5.0-0 cb4 6.h3 Bh5 7.a3=.

4.Bb5 Nd7 5.bc5 dc5 6.Nc3 a6=.

4.Bb5 Nd7 5.bc5 dc5 6.h3 a6 7.hg4 ab5 8.g5 Qc7 (8...b4 9.Bb2+=) 9.Bb2 (9.Nc3 Qc6+-) 9...f6 (9...b4 10.a3+=) 10.Qe2 (10.Nc3 b4 11.Nd5 Qc6+-) 10...b4+- 11.a3 e5 12.Qc4 Ne7 13.ab4 Ra1 14.Ba1 Nb6 (14...b5 15.Qa2+-) 15.Qb5 (15.Qc5 Qc5 16.bc5 Nd7+-) 15...Qc6 16.Qc6 Nc6 17.bc5 (17.b5 Nd4 18.Bd4 cd4 19.gf6 gf6+-) 17...Bc5 18.gf6 gf6 19.Ke2 0-0 20.Nc3 Ra8 21.Nd5 (21.Rb1 Nb4 22.Ne1 Ra3+-) 21...Nd5+= 22.ed5 Nb4 23.c4 Ra2 (23...Ra4!?+-) 24.Bc3+- Nc2 (24...b6 25.g4+-) 25.Rb1 b6 26.Rb2 Rb2 27.Bb2 Kf7 28.Kd1 (28.d3 Ke8+-) 28...Nb4 29.Ke2 Nc2 30.Kd3 (30.d3 Ke7+-) 30...Nb4+- 31.Ke4 Bf2 32.d4 ed4 33.Nd4 Na6 34.Kf5 Nc5 (better 34...Nb4 35.d6 Nd3+-) 35.g4 (better 35.Nb5+-) 35...Nd3= 36.Bc3 Ne5 37.Nb5 (37.g5 Nc4 38.gf6 Ne3 39.Ke4 Ng4=) 37...Nc4=+ 38.Ke4 Bc5 39.Bd4 ½–½. Krstic,Slobodan (2060) – Cox,Barry, Australian op, 2009. (=1.e4 c5 2.Nf3 d6 3.b4 Bg4)

4.Bc4 e6 5.bc5 dc5 6.Nc3 a6 7.a4 Nc6 8.Rb1 Qc7 9.Be2 Rd8 10.0-0 Nf6 11.d3 Be7 12.e5 Nd5 (12...Nd7 13.Bf4+=) 13.Nd5= Rd5 14.Bf4 Bf3 15.Bf3 Rd4 16.Bg3 (16.Be4 Ra4 17.Qf3 A) 17...Ne5 18.Be5 Qe5 19.Bc6 bc6 20.Qc6 Kd8 21.Rb7+- (21.Qa4?! Bd6 22.g3 Ke7+-); B) 17...0-0=) 16...Ra4+= 17.c4 Na7?? (17...Ra5 18.Qd2 Nb4 19.Rfd1+=) 18.Be4 (18.Qa4!? b5 19.Qa6 b4+-) 18...Qd7?? (18...b5 19.Qg4 0-0 20.Ra1+=) 19.Ra1 (better is 19.Rb7 Qb7 20.Bb7+- (20.Qa4?! Qd7 21.Ra1 f5 22.ef6 Bf6+-)) 19...Ra1+= 20.Qa1 1–0. Kadas,Gabor (2225) – Papp,Karoly (2055), HUN–ch Seniors, 2004. (=1.e4 c5 2.b4 d6)

4.Bc4 Nf6 5.bc5 Ne4 6.Bd5 Nc5 7.Bf7 Kf7 8.Ng5 Kg8 9.Qg4 h6 10.d4 (10.Ne4 Qd7 11.Qd7 Nbd7 12.Nc5 Nc5=) 10...hg5= 11.dc5 dc5? (better 11...Qd7!? 12.Qd7 Nd7 13.cd6 ed6 14.Bg5 d5=) 12.Qe6+- Kh7 13.h4 (worse 13.Bg5 Qd6 14.Qe4 g6+-) 13...g4 14.Nc3 (14.Qe4 Kg8 15.Qb7 Nd7 16.Qd5 e6 17.Qe6 Kh7+-) 14...Qa5 (14...Qd7 15.Qe4 Kg8 16.Be3+-) 15.Bd2 (15.Qe4 Kg8 16.Qc4 Kh7+-) 15...Qb4?? (better 15...Qa6 16.Qe4 Qg6 17.Qb7 Qc6+-) 16.Ne4 (16.Ne4 Qe4 17.Qe4 Kg8 18.Qe6 Kh7 19.h5 Na6 20.h6 Rd8 21.Qf7 Rd3 22.cd3 Nb4 23.hg7) 1–0. Cavadini,Ignacio (2020) – Ciapetta,Agustin, Liga Nacional Superior, 2016. (=1.e4 c5 2.b4 d6 3.Nf3 Bg4)

3.f4 cb4

4.a3 Nf6 5.Qe2 Nc6 6.ab4 Bg4 7.Nf3 e5 8.c3 Nh5 9.f5 g6 10.fg6 fg6 11.d3 Bg7 12.b5 Na5 13.Qa2 b6 14.Be3 Qd7 15.Be2 Be6 16.c4 0-0 17.Nc3 Nf4 18.Bf1 (18.0-0 Bh6 19.Kh1 Rf6+=) 18...Bg4 19.Bf4 ef4 20.Rc1 Bf3 21.gf3 Kh8 22.Nd5 Qd8 23.h4 g5 (better is 23...Be5!?=) 24.Rc2 a6 (better is 24...g4 25.fg4 Bd4+/-) 25.hg5+- ab5 26.Rch2 (26.cb5?! Nb7 27.Qc4 Ra1 28.Ke2 Qg5+=) 26...Nc4 27.Rh7 Kg8 28.Nf6 Kf7 29.Qh2 Ra1 30.Kf2 Rh8 31.Qh5 Ke6 32.Bh3 Ke5 33.Ra1 Rh7 34.Qh7 Bf6 35.dc4 Kd4 36.gf6 Qf6 37.Bf1 Kc3 38.e5 Qe5 39.Qd3 Kb4 40.Qa3 1–0. Radnaev,Anatoly – Ergeshov,Timur, Irkutsk RUS, 6th Ermolaev Mem, 2012. (=1.e4 c5 2.f4 d6 3.b4)

4.d4 a5 5.Nf3 g6 6.Bc4 Bg7 7.0-0 Bd7 8.e5 e6 9.ed6 b5 10.Be2 Nh6 11.a3 Nf5 12.ab4+= a4 13.Na3 Nd4?? 14.Nd4+- Bd4 15.Qd4 0-0 16.Bb2 f6 17.Nb5 Bb5 18.Bb5 Nd7 19.Ba4 e5 20.Qd5 Kg7 21.Bd7 Ra1 22.Ba1 Qd7 23.fe5 fe5 24.Be5 Kh6 25.Rf8 (25.Rf8 Qg4 26.d7 Qb4 27.d8Q Qe1 28.Rf1 Qe3 29.Kh1 g5 30.Qe6 Kh5 31.Qde8 Kh4 32.Qh6 Kg4 33.Qhh5) 1–0. pierre – oppodave, internet, 2010.

4.d4 g6 5.a3 ba3 (better is 5...Nf6!? 6.Nd2 Bh6-/+) 6.Nf3 Bg7 7.Be3? (better is 7.Nc3!?+=) 7...Nf6-/+ 8.Bd3 0-0 (8...Ng4 9.Qc1-/+) 9.Nbd2 (9.Na3 Nc6-/+) 9...Ng4 10.Bg1 Bh6 (10...Qa5 11.Qc1-+) 11.g3-/+ Nc6 12.e5 (12.d5!? Nb4 13.Ra3-/+) 12...de5-+ 13.de5 Bg7 14.h3 Nh6 15.g4 f6 16.Bh2 fe5 17.fe5 Nf7 18.Bc4 Kh8 19.Bf7 Rf7 20.Ra3 Rf8 21.Qb1 Be6 22.c4 Nd4 23.Ng5?? Qc8 24.Qe4 Bh6 25.h4 Bg5 26.hg5 Qc6 27.Qc6 Nc6 28.Rg1 Rad8 29.Rg2 b6 30.Bg1 Ne5?? 31.Re2+= Nc4 32.Ra7 Nd2 33.Rd2 Rd2 34.Kd2 Rd8 35.Ke3 Rd7 36.Ra8 Kg7+= 37.Kf4 b5 38.Ke5 Bg4 39.Rb8 Be2 0–1. Al_Hadhrani,Hatem (2260) – Oragwu,Chukwunonso, 40th Men Olympiad, 2012. (=1.e4 c5 2.f4 d6 3.b4 cb4)

3.f4 Nf6

4.bc5 Ne4 5.cd6 Qd6+=.

4.bc5 e5 =.

4.d3 cb4 5.Nf3 -/+.

4.d3 g6 5.Nd2 (5.bc5 dc5 6.Nc3 Bg7=) 5...b6 (5...cb4 6.d4-/+) 6.Ngf3 (6.bc5 dc5 7.Ngf3 Bg7=) 6...Bg7 (6...cb4 7.Rb1+=) 7.Rb1 0-0 8.g3 (8.bc5 dc5 9.Be2 Be6=) 8...e5 (8...cb4!? 9.Rb4 Nc6+=) 9.fe5 de5 10.bc5 bc5 11.Nc4 Nc6 12.c3 Be6 13.Qa4 (worse is 13.Nfe5 Ne5 14.Ne5 Ne4 15.de4 Be5 16.Qd8 Rfd8-/+) 13...Qc7 14.Be2 Nd7 15.Ne3 (15.Ng5 Bc4 16.Qc4 h6+=) 15...h6= 16.g4 Nb6 17.Qc2 Rfd8 18.0-0 c4 (18...Rab8 19.g5=) 19.dc4+= Na5 20.Nd5 Nd5 21.cd5 (worse is 21.ed5 Bg4 22.Rb4 Bf8-/+) 21...Bg4 22.Bd2 Bh3 23.Rfc1?? (23.Rf2 Nc4 24.Bc1 Nd6=) 23...Nc4?? (better is 23...Qc5 24.Nd4 Rab8-/+) 24.Qd3= Qc5 25.Kh1 Qf2 26.Rg1 Nd2 27.Nd2 ½–½. Istvanovszky,Martin (2200) – Sallai,Kalman (2150), Nove Zamky op, 2008. (=1.e4 c5 2.b4 d6)

4.e5?? Nd5 5.bc5+= dc5 (5...Nf4 6.d4 de5 7.Bf4 (worse is 7.de5 Qd1 8.Kd1 Bg4 9.Nf3 Ng6-/+) 7...ef4 8.Nf3+=) 6.c3 (better is 6.Qf3=) 6...Nf4?? (better is 6...Bd7 7.g3 Bc6=) 7.Qa4+- Nd7 8.Qf4 Qc7 9.Nf3 b6 (9...h6 10.g3 g5 11.Qf5+-) 10.Bc4 (better is 10.d4!? cd4 11.Bb5 f6+-) 10...e6 11.0-0 h6 (11...Be7 12.Qg4 g6 13.Bb5+-) 12.Na3 (better is 12.Ng5 hg5 13.Qf7 Kd8+-) 12...a6 (12...Nb8 13.Nh4 a6 14.Nb5 ab5 15.Bb5 Kd8 16.Qf7 Qf7 17.Rf7+-) 13.d4 (better is 13.Be6 fe6 14.Nh4 Nf6+-) 13...Be7 (13...cd4 14.cd4 Nb8+-) 14.Qg4 (14.d5 Nf8 15.d6 Qd7+-) 14...cd4 (14...Rg8 15.d5 ed5 16.e6 fe6 17.Bd5 ed5 18.Qh5 Kd8 19.Qd5+-) 15.cd4 (15.Qg7 Rf8 16.cd4 Bb7+-) 15...g5 (15...g6 16.Be6! fe6 17.Qg6 Kd8 18.Qe6+-) 16.Bb3 (better is 16.Qh5!? Rf8 17.Be6 Ne5 18.Bc8 Nf3 19.Rf3 Rc8+-) 16...h5 (16...Nf8 17.Ne1 Qc3 18.Rb1+-) 17.Qe4 (17.Qg3 Qc3 18.Nc2 g4+-) 17...Bb7 18.Qc2 (better is 18.Qe2 Rg8 19.Nc2+-) 18...Qc2 19.Nc2 g4 20.Ng5 Bg5 (20...Rf8 21.Na3 h4 22.Nc4+-) 21.Bg5 Rc8 22.Ne3 Nb8 (22...Rg8 desperation 23.Bf6 g3+-) 23.Nc4 Rc7 (23...0-0 a last effort to resist the inevitable 24.Nd6 Rc7+-) 24.Nd6 Kf8 25.Be6 Rh7 26.Bd8 (26.Bd8 Rc3 27.Bf7+-) 1–0. Tischer,Jana – Mader,Manuela (1665), DLM U20 Girls, 2002. (=1.e4 c5 2.b4 d6 3.f4)

4.e5?? de5 5.Bb5 Bd7 -+.

4.Nf3 Ne4 5.d3 Nf6 6.Be2 (6.bc5 dc5 7.Be2 e6-/+) 6...g6 (6...cb4 7.0-0-+) 7.0-0 (7.bc5 dc5 8.0-0 Bg7-/+) 7...Bg7 (7...cb4 8.a3-+) 8.d4 (8.bc5!? Ne4! 9.d4 dc5 10.Bb5 Bd7 11.Bd7 Qd7 12.Be3-+) 8...cb4-+ 9.a3 b3 10.c3 (10.cb3 Nd5 Combination) 10...0-0 11.Qb3 b6 12.Nh4 Bb7 13.f5 Bd5 14.c4 Be4 15.Qc3 (15.fg6 fg6 16.Nd2 Bc6+=) 15...e6 16.fe6 fe6 17.Bg5 (17.Nd2 Bb7+=) 17...Nc6 (17...Bb1!? 18.Qe3 Bf5-/+) 18.Qe3 d5 (18...h6 19.Bf6 Bf6 20.Qe4 Bd4 21.Kh1 Rf1 22.Bf1 Ba1 23.Qc6+=) 19.Nd2+= Qd7 20.Kh1 Bf5 21.h3 (21.Nf5 ef5 22.Rae1 Rae8-/+) 21...h5 (better is 21...dc4!? 22.Nf5 Nd5-+) 22.Rad1+= Ne4 (22...Rae8+=) 23.Nb3 (better is 23.Nf5!? gf5 24.Ne4 fe4 25.Bf4+=) 23...Ng5-/+ 24.Qg5 (better is 24.Nf5!? Rf5 25.Rf5 ef5 26.Qg5-/+) 24...Bc2-+ 25.Rde1 Bb3 26.Bd3 Bc4 27.Qg6 Bd3 28.Qd3 Rf1 29.Qf1 Qf7 30.Qe2 Nd4 31.Qd3 Qf2 32.Nf3 Nf3 33.gf3 Qe1 (33...Qe1 34.Kg2 Rc8-+) 0–1. Lortat Jacob,Bertrand (1680) – Msellek,Ilyass (1890), Montigny le Bretonneux Noel op, 2007. (=1.e4 c5 2.b4 d6 3.f4 Nf6)

2...e5

3.Bb2 b6 4.Bc4 Bb7 5.Be5 (5.Nf3 d6 6.bc5 bc5+=) 5...Nc6 6.Bb2 Be7?? (better 6...Nb4!? 7.d3 d5 8.Bb5 Nc6 9.ed5 Qd5 10.Qe2 Kd8 11.Bc6 Qc6=) 7.bc5?? (7.Bg7 Bf6 8.Bh8 Bh8+-) 7...bc5? (7...Nf6 8.Nc3 Bc5 9.Nf3+/-) 8.Ne2 (better 8.Bg7 Bf6 9.Bh8 Bh8 10.Qh5+-) 8...Nf6+= 9.d3 0-0 10.0-0 d5 11.ed5 Nd5 12.Nd2 Nf6 13.a4 Nd4 (13...Bd6 14.Rb1 Rb8 15.f3+/-) 14.Ba3 (better 14.Nd4!? cd4 15.Nb3+-) 14...Ne2 15.Qe2 Bd6 16.Bb2 Re8 17.Qd1 Nd5 (17...Rb8!?+=) 18.Ne4+/- Nb4? (18...Qc7 19.Nd6 Qd6 20.Qh5+-) 19.g3 (better 19.Qh5 Bd5 20.Ng5 Bh2 21.Kh2+-) 19...Be4+/- 20.de4 Re4 (better 20...Rb8+/-) 21.Bb5?? (21.Bf7 Kf7 22.Qf3 Rf4 23.gf4 Rb8+-) 21...c4 (21...a6 22.Be2 Re7 23.c3=) 22.h4?? (22.Qf3!? Qe7 23.Rae1+-) 22...Be5 (22...Qe7!? 23.Qf3 Rc8= (23...Nc2? 24.Rad1+-)) 23.Be5 Qd1 (better 23...Re5!? 24.Qd8 Rd8+=) 24.Rad1+/- Nc2?? (better 24...a6 25.Bd6 ab5 26.ab5 Nc2+-) 25.Bc7 (25.Bc6 Re5 26.Ba8 Kf8+-) 25...Rae8 (25...Rc8 26.Ba6 Rce8 27.Rc1+-) 26.Bf4 (better 26.Be8 Re8 27.Ba5 h6+-) 26...Rc8 27.a5 (27.Rd7 h6+-) 27...Nd4 (27...h6+-) 28.Ba4?? (better 28.Ba6 Rc5 29.Be3 Ra5 30.Bc4+- (30.Rd4?! Rd4 31.Bd4 Ra6+/-; 30.Bd4?! Ra6 31.Ba7 h5 32.Rd8 Kh7+-)) 28...Ne2 29.Kh1 (better 29.Kg2!? c3 30.Bc2 Nf4 31.gf4 Rf4 32.Rd7 Rh4 33.Ra7+-) 29...Nf4= 30.Bc6 Re2 (30...Re5 31.gf4 Ra5 32.Rd7+=) 31.Bf3 Rb2 32.gf4 c3 33.Rde1 (33.Bg4 Rcb8+/-) 33...g6 34.a6 c2 35.Kg2 f6 36.Ra1 Kf7 37.Rfc1 Rc7 38.Re1 Re7? (38...f5 39.Rac1+/-) 39.Rh1 (better 39.Re7!? Ke7 40.Rc1+-) 39...Kg7 40.Rhc1 f5 41.Bd5 Rc7 42.Ra2 Ra2 43.Ba2 Kf6 44.Bb3 Rc6? (better 44...Rc3 45.Bc2 Rc6+-) 45.Rc2 (45.Bc2?! Rc4+-) 45...Rc2 46.Bc2 Ke6 47.h5! gh5 48.Kg3 Kf6 49.Kh4 Kg6 50.Bb1 h6 51.Bc2 Kf6 52.Kh5 Kg7 53.Bf5 Kf6 White now must not overlook the idea Bc2 54.Bg6 Kg7 55.f5 1-0. Panza - delightful_porridge, ChessWorld.net, 2022. (=1.e4 c5 2.b4 e5 3.Bb2)

3.b5 b6 4.Nf3+= Qf6 (4...d5 5.ed5 Qd5 6.Nc3+=) 5.Bc4+/- d6?? (better is 5...a6+/-) 6.Bd5+- Bd7 7.Ba8 Bb5 8.d3 h6 (8...Ne7 9.0–0+-) 9.Nc3 Be7 10.Nb5 Bd8 11.Be3 Ne7 12.Nc3 0–0 13.a4 Na6 14.Nb5 Bc7 15.Bb7 Nb4 16.Nc7 Nbc6 17.Bc6 Nc6 18.Nd5 Qd8 19.Rb1 f6 20.Nh4 Kh7 21.Qg4 Ne7 22.Ne7 Qe7 23.Ng6 Qf7 24.Nf8 Qf8 25.0–0 Qf7 26.f4 h5 27.Qf5 g6 28.Qh3 c4 29.d4 c3 30.de5 f5 31.ef5 Qf5 32.Qf5 gf5 33.ed6 Kg7 34.d7 (34.d7 Kh7 35.d8Q b5 36.Qd7 Kg6 37.Rfd1 h4 38.Rd6 Kh5 39.Qf5) 1–0. rpatru (2165) – tundeski (2550), net–chess.com, 2009.

3.b5 g6 4.Nc3 Ne7 5.Bc4 d6 6.Qf3 f6 7.Qf6 Ng8 8.Qf7 Black king mated 1–0. marekt – karlsdad, ChessWorld.net, 2012. (=1.e4 c5 2.b4 e5 3.b5)

3.Bb5 a6 4.Bc4 cb4 5.Nf3 Nc6 6.0-0 b5 7.Bd5 Nge7 8.Ne5 Nd5 9.Nf7 Qf6 (9...Kf7 10.Qh5 g6 11.Qd5 Ke7 12.Bb2=) 10.Nh8+= Qa1? (10...Nde7 11.e5 Qe5 12.d4 Qd4 13.Qf3 Qa1 14.Qf7 Kd8 15.Qf8 Kc7 16.Bf4 d6 17.c3 bc3 18.Qg7=) 11.Qh5 (11.ed5 Nd4+/-) 11...Kd8 (11...g6 12.Qh7 Qg7 13.Qg7 Bg7 14.ed5 Bh8 15.dc6 dc6 16.Re1 Kf7 17.d3+=) 12.Nf7 Kc7 13.d3?? (better is 13.ed5 Qb1 14.dc6 dc6 15.Qe5 Kb6 16.Qd4 Bc5 17.Qg7+-) 13...Nf6-+ (13...Qb1?! 14.ed5 Qa2 15.Bf4 Kb6 16.dc6 dc6 17.Ne5+/-) 14.Bf4 d6 15.Qc5 Qd4 (15...Qa2?! 16.Bd6 Bd6 17.Qd6 Kb7 18.Qf8-/+) 16.Bd6 (16.Qd4 Nd4 17.Re1-+) 16...Bd6 17.Qg5 g6 (17...Bf8 18.Qg3 Kd7 19.Ng5-+) 18.Nd2 Bg4 (better is 18...Be7 19.Qg3 Kd7-+) 19.Nb3 Qc3 20.Qd5?? (better is 20.Nd6 Kd6 21.d4 Ne4 22.Qg4-+) 20...Nd5 21.ed5 Nd4 22.Na5 Qc2 23.h3 Be2 24.Re1 Bd3 (24...Qd2 25.Rf1 Bf1 26.Nd6 Ne2 27.Kh1 Qg5 28.Ne8 Re8 29.d6 Kd7 30.g3 Qd5 31.f3 Qf3 32.Kh2 Qg2) 25.g3 0–1. Feist – Bass, ICCF email, 1998. (=1.e4 c5 2.b4 e5)

3.Nf3 d5 4.ed5 cb4 5.Bb5 Bd7 6.Qe2 Bb5 7.Qb5 Qd7 8.Qc4 Bd6 9.d4 ed4 10.0-0 Ne7 11.Qd4 (worse is 11.Nd4 0-0-/+) 11...0-0 12.Bb2 f6 13.c4 bc3 14.Nc3 (worse is 14.Bc3 Na6-/+) 14...Na6 15.Ne4 Nc7 16.a4 Ncd5 17.Rfd1 Rfd8 18.Qc4 Kh8 19.g3 Qc7 20.Qa2 Bb4 21.Rac1 Qa5 22.Nd4 Nb6 23.Ne6 Rd1 24.Rd1 Qa4 (24...Na4?! 25.Ng7 Nb2 26.Qb2=) 25.Qb1 Ned5?? (25...a5 26.Rc1 Nbd5 27.Qd3-+) 26.N6g5?? (26.N4g5 fg5 27.Rd5+/-) 26...f5-+ (26...fg5?! 27.Ng5 Qd1 28.Qd1+=) 27.Rd4 Qe8 28.Rb4 Nb4 29.Bg7 Kg7 30.Qb2 Kh6?? 31.Qf6 Kh5 32.Ne6 Kg4 33.Qg5 Kf3 34.Qe3 Kg4 35.Nf6 Kh3 36.Qh6 (36.Qh6 Qh5 37.Qh5; 36.Nf4) 1–0. Beier,Klaus – Schneider,Bernd2 (2290), Bayern–chB Wildflecken, 1993. (=1.e4 c5 2.b4 e5 3.Nf3)

3.Nf3 f6 4.Bc4 Nc6 5.bc5 Bc5+= 6.Nc3 Nge7 7.a3 d6 8.Rb1 a6 9.h3 b5= 10.Bb3 Na5 11.Ba2 Nc4 12.a4 Bd7 13.Qe2 Qc8 14.0-0+= Nb6 15.ab5 ab5 16.Bb3 b4 17.Nb5 Qc6 18.c4 Nbc8 19.d4+= ed4 20.Nfd4 Qb6 21.Be3 0-0 22.Nc2 Kh8 23.Nb4 Be3 24.Qe3 Qe3 25.fe3 Rb8 26.Nd3 Bb5= 27.cb5 Rb5 28.Be6 Na7 29.Kf2 Rfb8 30.Rb5 Rb5 31.Nf4 h5 32.Rd1+= Rb2 33.Kg1 Nb5 34.Bc4 Rb4 35.Rc1 d5 36.Nd5+- Nd5 37.ed5 g6 38.Bd3 Kg7 39.Rc5 (39.Rc5 Nd6 40.Rc7 Kh6 41.Rc6+-) 1–0. pierre (2180) – 1ricardo (1710), internet, 2008.

3.f4 cb4 4.a3 (4.Nf3 ef4 5.d4-/+) 4...d6 (better is 4...ef4 5.Nf3 Nf6-+) 5.Nf3+= Nc6 (5...Nf6 6.ab4 ef4 7.Nc3+=) 6.ab4 Qc7 (6...ef4!? 7.b5 Nce7+=) 7.b5+= Nd8 (7...Na5 8.d3+/-) 8.Nc3+/- Nf6 9.Be2 (9.f5!?+/-) 9...Ne6 10.fe5 de5 11.0-0 Bc5 12.Kh1 0-0 13.Nd5 Nd5 14.ed5 Nf4 15.c4 Bg4 (15...e4 16.Ng5 f5 17.d3=) 16.d3= Ne2 17.Qe2 Rfe8 18.Bb2 Bd4 (18...f6!?=) 19.Bd4+/- ed4 20.Qf2 Re3? (better is 20...Bf3 21.Qf3 f6+/-) 21.Nd4+- Rd3 (21...Qe7 22.d6! Qe8+-) 22.c5 (better is 22.b6 Qd7 23.ba7+-) 22...Bh5? (22...f6!? 23.Nc2 Rd5+=) 23.c6 (23.Ra7 Re8 (23...Ra7? 24.b6 Qc5 25.ba7+-) 24.c6 Qb6+-) 23...bc6 (23...Qb6 24.Ra4 bc6 25.bc6+/-) 24.bc6 Qe5? (better is 24...Qb6!? 25.Rab1 Qd4+-) 25.Nf5+- Rd5 26.Ra4?? (better is 26.Rae1 Qf5 27.Qf5 Rf5 28.Rf5+-) 26...Qf5?? (better is 26...Rc5=) 27.Qf5+- Rf5 28.Rf5 Bg6 29.Rd5 (29.Rd5 Kf8 30.Rad4+-) 1–0. Deryagin,Aleksandr (1885) – Zaitsev,Vyacheslav, Khanty–Mansiysk RUS, 9th Governor Cup–B, 2013. (=1.e4 c5 2.b4?? e5)

3.f4 d5 4.ed5 e4 5.c4?? Qh4 6.g3 Qf6 7.Nc3 cb4 8.Qa4? (better 8.Bb2 bc3 9.Bc3-+) 8...Bd7 9.Nb5 (9.Qc2 bc3 10.dc3-+) 9...Qa1 10.Nc7 (10.Ne2 Nf6 11.Qc2 Bb5 12.cb5-+) 10...Kd8 11.Qd1 (11.Qc2 Kc7 12.Qb2 Qb2 13.Bb2 Nf6-+) 11...Kc7 12.Bg2 (12.Qc2 Nf6-+) 12...Qa2 13.Be4 Nf6 14.Bg2 Bc5 15.Nf3 Ba4 16.Qe2 Qc2 17.Kf1 Qc1 18.Ne1 Re8 19.d6 Kd6 20.Qd3 Kc7 21.Bf3 Re1 22.Kg2 Rh1 23.Be2 (23.Kh3 Rh2! 24.Kh2 Ng4 25.Kh3 Nf2 26.Kh2 Nd3 27.Kh3 Qf1 28.Bg2 Bd7 29.f5 Qf5 30.g4 Qg4 31.Kh2 Nf4 32.Bb7 Qh4) 23…Qg1 (23...Qg1 24.Kf3 Qf2) 0-1. Salvatore – marekt, ChessWorld.net, 2020. (=1.e4 c5 2.b4 e5 3.f4)

3.Bb2 Nc6

4.b5 Nb8 5.Bc4 d6 6.Nf3 Nf6 7.d3 h6 8.Nc3 Be6 9.Nd5 Nbd7 10.0-0 Be7 11.Ne7 Qe7 12.Qe2 Bc4 13.dc4 Rd8 14.Nh4 0-0 15.Nf5 Qe6 16.Rad1 (better is 16.Bc3!?+=) 16...Nb6+= 17.f4 Nc4 (17...Qc4 18.Rde1 Qe2 19.Re2 Nc4-/+) 18.Bc1?? (better is 18.Nh6 gh6 19.f5+=) 18...ef4-/+ 19.Rf4 Ne5 (19...d5!?-/+) 20.Rdf1 Ng6?? (better is 20...Ne8+=) 21.Nh6+- Kh7?? (21...gh6 22.Rf6 Qa2 23.Bh6 Qb2 24.Bf8 Qd4 25.Kh1 Rf8+-) 22.Rf6! gf6 23.Qh5 Qe5 24.Nf5 Kg8 25.Qh6 Qf5 26.Rf5 Rfe8 27.Rf6 Re6 28.Re6 fe6 29.Qg6 Kf8 30.Qe6 Rd7 31.Qd7 a6 32.Kf2 d5 33.ed5 ab5 34.Bg5 b6 35.Bf6 (35.Bf6 b4 36.Qe7 Kg8 37.Qg7; 35.Bh6 Kg8 36.Qg7) 1–0. Stone,Jim – Lafreniere,Patrick, Internet Section, 2004. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.b5 Nd4 5.c3 Ne6 6.Nf3 d6 7.d4 Ng5 8.Ng5 Qg5 9.Bc1 Qg6 10.f3 Be7 11.Be3 Nf6 12.Qd2 0-0 13.d5 Ne8 14.g4 Bh4 15.Bf2 (15.Kd1 Bd7+=) 15...Qf6 16.Qe2 b6 17.a4 a6 18.c4 Bd7 19.Nc3 Nc7 20.Bh3 ab5 21.g5 Bf2 22.Kf2 Qe7 23.Bd7 Qd7 24.cb5 Qh3 25.Rag1 f5 26.gf6 Rf6 27.Rg3 Qh4 28.Ke3 Qf4 29.Kd3 Rh6 30.Rg4 Qf6 31.Rhg1 g6 32.R1g3 Rh4 33.Rg5 Kh8 34.Qg2 Qf7 35.Kc4?? (35.R5g4 Qe7=) 35...Ne8?? (better is 35...Ra4! 36.Kd3 c4 37.Kc2 Ra5-+) 36.Kb3 (36.Kd3 Nf6 37.Kd2 Rf8+=) 36...Qf4 (36...Nf6 37.Rh3 Rh3 38.Qh3-/+) 37.Rf5 (better is 37.R5g4!? Rg4 38.fg4=) 37...Qc1-/+ 38.f4? ef4-+ 39.Rf8 Kg7 40.Re8 Re8 41.Rf3 Qe1 42.Qg5 h6 43.Qg2 Re4 44.Rf1 Rb4 45.Kc2 Rh2! 46.Qh2 Qf1 47.Qh4 Qg2 48.Kc1 Qb2 49.Kd1 Rd4 50.Ke1 Qc3 0–1. Schulz,Hans Juergen (2105) – Gehrmann,Rudolf Rainer, Wichern op 4th, 1997. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.b5 Nd4 5.c3 Ne6 6.Nf3 Bd6 7.d4+= ed4 8.cd4 b6? 9.d5+- Nc7?? 10.Bd3 f6 +/-. chessleon (2055) – zook (1840), net–chess.com, 2008.

4.b5 Nd4 5.Bc4 d6 6.c3 Ne6 7.Ne2 Nf6 8.d3 Be7 9.Nd2 0-0 10.0-0 Bd7 11.a4 b6 12.Nf3 h6 13.Bc1 Nh7 14.Ng3 Neg5 15.Nh4 (better is 15.Bd5!? Rc8 16.Ng5 Bg5 17.f4 ef4 18.Bf4 Bf4 19.Rf4+=) 15...Nh3+= 16.gh3 Bh4 17.Kg2 Qc8 18.Rg1 Bh3 19.Kh1 Kh8 20.Be3 f5 21.ef5 (21.Nf5 Rf5 22.ef5 Qb7 23.f3 Bf5=) 21...Bf5 (21...Qb7 22.Ne4 Bf5-+ (22...Rf5?! 23.Be6=)) 22.Qh5? (better is 22.Nf5 Qf5 23.Bd5+=) 22...Qb7-+ 23.f3 Bg5 24.Nf5 Rf5 25.Rg3 (25.Raf1-+) 25...Raf8 26.Bg5 Ng5 (26...hg5?! 27.Rh3 g6 28.Qg6=; 26...Rg5?! 27.Qh3-+) 27.h4 Nf3 (27...Nf3 28.Qg4 Ne1 29.Rg2 Rf1 30.Kh2 Nf3 31.Kg3 Ra1-+) 0–1. Novy,J – Sokolovska,J, Klatovy op–B, 1999. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.bc5 Bc5=+ 5.c3?? d5?? 6.d4=+ ed4 7.cd4 Bb4 8.Nd2 de4-/+ 9.a3 Ba5 10.d5 Qd5 11.Bg7 Bf5 12.Ne2 0-0-0 13.Nc3= Bc3 14.Bc3 f6 15.Bc4 Qc5 16.Qh5 e3-/+ 17.fe3 Qe3 18.Be2 Nge7 19.Qf3 Nd4 20.Qe3+= Nc2 21.Kf2 Ne3 22.Bf6 Rhe8 23.Rac1 Kb8 24.Be5 Ka8= 25.Nc4 Ng6 26.Ke3 Ne5= 27.Ne5 Re5 28.Kf4 Re2 29.Kf5 Rg2 30.Kf6 a6 31.Ke7 Rdd2 32.Rc8-/+ Ka7 33.Rh8 Rh2 34.Rh7 Rh7 35.Rh7 Rd3 36.a4 Rd4 37.a5 Rd5 38.Ke6 Ra5 39.Kd6 Kb6 40.Rh4 Rb5 41.Rg4 0–1. Kernodle,Roger – Pierce,Wayne, IECC, 1997.

4.bc5 Bc5 5.Nf3 d6 (5...Qb6 6.Na3 Bf2 7.Ke2-+) 6.d4 (6.Nc3 Nf6 7.Bb5 a6 8.Bc6 bc6=+) 6...Qb6-/+ 7.dc5 Qb2 8.Nbd2 dc5 9.Bc4 Nd4 10.Nd4 Qd4 (worse 10...ed4 11.Rb1 Qc3 12.Qh5+-) 11.0-0 Nh6 (11...Nf6 12.Bb5 Bd7 13.Bd7 Qd7 14.Nc4-/+) 12.Bb5 Bd7 (12...Kf8 13.Nb3 Bg4 14.Nd4 Bd1 15.Ne6 fe6 16.Rad1=+) 13.Bd7 (13.c3 Qd6 14.Bd7 Qd7=+) 13...Qd7 14.Nc4 0-0-0 15.Qd7 Rd7 16.Ne5 Re7 (16...Rd4 17.f3-/+) 17.Nd3 (better 17.Nc4!?=) 17...Re4 18.Nc5 Rc4 19.Nd3 Rc2 20.Rac1 Rc1 21.Rc1 Kb8 22.Nc5 Rd8 23.h3 Nf5 24.Re1 h5 (24...Rd2 25.a4-/+) 25.g4 hg4 26.hg4 Nh4 (better 26...Nd6!?-/+) 27.Re7= Rd1 28.Kh2 Nf3 (28...b6!? 29.Na6 Kc8 30.Rc7 Kd8 31.Rf7 Rd7 32.Rd7 Kd7=) 29.Kg3+- b6? (better 29...Ng5 30.Rb7 Ka8+-) 30.Na6+- (30.Kf3?! bc5 31.Rf7 c4+=) 30...Kc8 31.Kf3 Rd7 32.Rd7 Kd7 33.Ke4 Kd6 34.Kd4 Kc6 35.a4 f6 (35...Kd7 36.f4+-) 36.f4 g6 (36...Kb7 37.Nb4+-) 37.Nb4 Kd6 38.Nd5 (38.f5 gf5 39.gf5 Kd7+-) 38...Kc6 (38...Ke6 39.Nc7 Kd7 40.Nb5+-) 39.Kc4 (39.Nf6 Kd6+-) 39...f5 40.g5 Kd6 41.Nf6 (41.Nb4!? Kc7+-) 41...a6 42.Kb4 Kc6 (42...Ke6 43.a5 ba5 44.Ka5+-) 43.Nh7 a5 (43...Kd5 44.Nf8+-) 44.Kb3 (44.Kc4 b5 45.ab5 Kb6+-) 44...b5 (44...Kd5 45.Nf8+-) 45.ab5 (45.Nf8!? ba4 46.Ka4 Kc5+-) 45...Kb5 46.Nf8 a4 47.Ka3 Kc4 48.Ng6 Kd4 (48...Kd5+-) 49.Ne7 Ke4 50.g6 Kf4 51.g7 (51.g7 Ke5 52.g8Q f4 53.Qd5 Kf6 54.Qd6 Kg5 55.Qg6 Kh4 56.Nf5 Kh3 57.Qh5 Kg2 58.Qe2 Kh1 59.Qf3 Kg1 60.Nh4 Kh2 61.Qg2) 1–0. Anderson,George – Enns,Edward, Winnipeg Canada, Yanofsky Memorial, 2005. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.Nf3 Qc7 5.b5 Nd4 6.Nc3 Nf6 7.Bc4 Be7 8.Nd5 Nd5 9.Bd4 cd4 10.Bd5 0-0 11.0-0 d6 12.h3 Bd7 13.a4 Rac8 14.d3 (14.c3 dc3 15.dc3 Kh8=) 14...a6 15.ba6 ba6 16.Bc4 Qa5 17.Nd2 Kh8 (17...Ba4? 18.Bb3+-) 18.Nb3 Qd8 (18...Qb6!?+=) 19.Ba6+= Ra8 20.Bb5 Be6 21.Bc6 (21.f4 f5+/-) 21...Ra7 (21...Ra6 22.Bd5=) 22.Bd5 Bd7 (better is 22...Bd5!? 23.ed5 Qa8=) 23.a5+/- f5 24.f4 fe4 25.fe5 (25.de4 Qc7+/-) 25...de5 26.Be4 Rf1 27.Kf1 Be8 28.a6 Bg5 29.Bb7 Be3 30.Nc5 Bb5 31.Qf3 Qe7 32.Ne6?? (better is 32.Rb1 Be8 33.Ne4+/-) 32...Qe6-/+ 33.Qf8 Qg8 34.Qc5?? (better is 34.Qg8 Kg8 35.Ra5+=) 34...Qf7 (better is 34...Rb7 35.Ke1 Rf7-+) 35.Bf3 Ra6 36.Ra6 Ba6 37.Qe5 Qf8 0–1. Anderson,George – Cleto,Sam (1880), Winnipeg TNT April op, 2004. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.Nf3 Qc7 5.Bc4 Be7 6.bc5 Bc5 7.0-0 Nf6 8.Nc3 0-0 9.Nd5 (9.Nb5 Qb6 10.Rb1 d6=) 9...Nd5 10.Bd5 d6 11.h3 Be6 12.c4 Qe7 13.Rb1 Rab8 14.Bc3 Qf6 15.d3 Qe7 (15...Bd7 16.Qe2=) 16.Qd2 Kh8 (16...Qf6 17.Rb5+=) 17.Qg5 Qg5 18.Ng5 Bd5 19.ed5 Nd4 20.Bd4 Bd4 21.g4 h6 22.Ne4 Rfd8 23.Kg2 g6 24.Ng3 (24.f4 Kg7+=) 24...b6 (24...Kg7 25.a4=) 25.h4 (25.f4 Kg7+=) 25...Rb7 26.g5 Rdb8 (26...Kg7 27.Ne4=) 27.Ne4+= Bc5 (27...Rd8 28.f4 hg5 29.fg5+=) 28.a4 (28.f4 Kg7+/-) 28...a6 (28...Kg7!?+=) 29.f4+/- ef4 (29...Kg7 30.fe5 de5 31.Rf6+/-) 30.Rf4 Kg7 31.Rbf1 Rf8 32.Rf6 b5 33.ab5 ab5 34.Nd6 Bd6 35.Rd6 hg5+= 36.hg5 bc4 37.dc4 Rc8 38.Rf4 Rbc7 39.Rdf6 Rc4 40.Rf7 Kg8 41.Kf3 Rc1 42.R7f6 Kg7 43.Ke4 R8c4 44.Ke5 Re1 45.Kd6+- Rf4?? 46.Rf4 Rg1 47.Ke6 Re1 48.Kd7 Re5 49.d6 Rg5 50.Kc6 Ra5 51.d7 Ra8 52.Kb7 Rh8 53.Re4 Kf6 54.Re8 Rh7 55.Kc6 Rd7 56.Kd7 g5 57.Kd6 Kf5 58.Kd5 g4 59.Rf8 Kg5 60.Ke4 (60.Ke4 g3 61.Rg8 Kf6 62.Rg3 Ke6 63.Rd3 Kf6 64.Rd6 Kg5 65.Re6 Kg4 66.Rg6 Kh5 67.Kf5 Kh4 68.Rg8 Kh3 69.Kf4 Kh2 70.Kf3 Kh1 71.Kf2 Kh2 72.Rh8) 1–0. Dotsenko,Serg1 (2185) – Zarivkina,V (2070), St Petersburg RUS, Botvinnik Mem2012, 2012. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

4.Nf3 Nf6 5.Bb5 (5.Ne5 Qe7 6.Nc6 bc6=) 5...cb4 (worse 5...Ne4 6.Qe2 Ng5 7.Ne5=) 6.Bc6 bc6 7.Ne5 Be7 8.d3 0-0 9.0-0 Bb7 10.Nd2 d6 11.Ng4 a5 12.Nc4 (12.a3 d5=) 12...d5 13.ed5 cd5 14.Nce3 Bc8 (better 14...d4!? 15.Nf5 Bc5=+) 15.Nf6= Bf6 16.Bf6 Qf6 17.Nd5 Qd6 18.Ne3 Be6 19.Qd2 (19.Qf3 Rac8+=) 19...Rfc8 (19...f5 20.f4=) 20.d4 (20.a3 f5=) 20...Rc3 (20...f5 21.f4=) 21.d5 Bd7 (21...Rac8 22.a3+=) 22.Rfd1 (22.a3 Rac8 (22...Ra3? 23.Nc4 Qc5 24.Na3+-) 23.ab4 ab4+-) 22...Rac8 23.Qd4 g6 (23...f5 24.Rd3+=) 24.Rd3 R3c5 (24...Rd3!? 25.Qd3 f5+=) 25.a3+- ba3 26.Rda3 a4 27.g3 f6 28.Rb1 Kf7 29.c4 Qe5 30.Qd2 (30.Qh4 Kg7+-) 30...h5 (30...Qd6 31.h3!+-) 31.h4 (31.Rb6 Rb8 32.f4 Qc7 33.Rb8 Qb8+-) 31...Kg7 (31...Rb8 32.Rb8 Qb8 33.Qd1+-) 32.Rb7 R5c7 33.Qb4 Rb7 34.Qb7 Rc7 (34...Qc7 35.Qc7 Rc7 36.Kf1+-) 35.Qb4 (35.Qb6 Rc8+-) 35...f5? (better 35...Rc8+-) 36.c5 Kf7 (36...f4 37.gf4 Qe8 38.Qb6+-) 37.c6 Bc6 38.dc6 Rc6 39.Qa4 Rc7 40.Rd3 Qe6 41.Kh2 Rb7 (41...Qe4 42.Rd4 Qc6 43.Qa3+-) 42.Qf4 (better 42.Rd8!? Re7 43.Nd5 Qe2+-) 42...Rd7 43.Rd7 Qd7 44.Qe5 Qa7 45.Kg1 1–0. Gumularz,Szymon – Hardicsay,Peter, 4th Polish–Hungarian Friendship Tournament, 2016. (=1.e4 c5 2.b4 e5 3.Bb2 Nc6)

3.Bb2 Qc7

4.bc5 Bc5 5.f4 (better is 5.Nc3!? Nf6 6.Bd3=) 5...Bg1 6.Be5 Qb6 7.Rg1 Qg1?? (7...f6 8.Rh1 fe5 9.Qh5 Kd8 10.Qe5 Qh6-/+) 8.Bg7+- Qh2 9.Qf3 (9.Bh8?! Qg3 10.Ke2 d5=) 9...Nc6 (9...Ne7 10.Bh8 Ng6 11.Bf6 Qf4 12.Nc3+-) 10.Bh8 d6 (10...Nge7 11.Na3 Ng6 12.Nb5+-) 11.Bb2 (11.Nc3!? Qh4 12.Qf2 Qf2 13.Kf2 Bg4+-) 11...h5 (11...Qh4 12.Qf2 Qe7 13.Bd3+-) 12.Na3 Bg4 13.Qf2 0-0-0 14.g3 Qf2 15.Kf2 d5 16.e5 Nge7 17.Nb5 Nf5 18.Bd3 Kb8 19.Ba3 Ncd4 20.Nd6 Nd6 21.Bd6 Kc8 22.c4 dc4 23.Bc4 Nf5+/- 24.Bb4 Rd4 25.Rc1 Kd8 26.d3 h4+= 27.Bd2 hg3 28.Kg2 Rd7 29.Rh1 Be2+= 30.Rh8 Kc7 31.Rf8 Bd3 32.Bd3 Rd3= 33.Rf7 Kc6 34.Rf5 Rd2 35.Kg3 Ra2 36.Rf7 b5 37.Kf3 b4 38.Ke3 b3 39.Kd3 a5 40.Kc4?? b2-+ 41.Rf6 Kd7 42.Rb6 a4 43.e6 Ke7 44.Kd5 a3 45.Rb7 Kf6 46.Rf7 Kg6 47.f5 Kh6 48.Rb7 Ra1 49.e7?? Re1-+ 50.f6 Kg6 51.Rb6 Kf7 0–1. Guzinski,B – Spicak,K (2120), ch–Poland Semi–Finals, Polanczyk Poland, 2000. (=1.e4 c5 2.b4 e5 3.Bb2 Qc7)

4.Nf3 Nc6 5.b5 Nd4 6.c3 Nf3 7.Qf3 Nf6 8.Bc4 Be7 9.d3 d6 10.h3 (10.0-0 Be6=) 10...Be6 11.Nd2 0-0 12.0-0 Nd7 13.a4 Nb6 (13...Bg5 14.Bc1=) 14.Be6+= fe6 15.Qg4 Rf6 16.a5 Nd7 17.Nc4 Qd8 (17...a6 18.b6 Qc6 19.Rae1=) 18.a6 b6 19.d4 ed4 20.cd4 Rg6 21.Qe2 d5 22.ed5 ed5 23.Ne5 (better 23.Ne3!? Re6 24.Qg4+/-) 23...Ne5=+ 24.de5 Qd7 25.f4 Rf8 26.Rad1 d4 27.Kh2 Bh4 28.Qc4 Kh8 29.g4 (29.Bc1 Qe7=) 29...Rh6 30.Qe2 Qd5 (30...Re6!?=) 31.g5+= Re6 32.Qg4 Qb3 33.Bc1 Bg5 (better 33...Qb5!? 34.Kg1 Qe8 35.Qh4 Kg8+/-) 34.fg5+- (34.Qg5?! Qb5 35.Rfe1 g6=) 34...Rf1 (34...Rfe8 35.Rde1+/-) 35.Rf1 Kg8 36.Qf5 Re8 37.e6 Qe6 (37...Qe6 38.Qe6 Double attack; 37...Re6 38.Qf8 Mate attack) 38.Qe6 Re6 39.Rd1 Re2 40.Kg3 Rc2 (40...Kf7 41.Bf4+/-) 41.Kg4 (41.Bf4 Rb2 42.Bb8 Rb5 43.Ba7 Rb3 44.Kg4 d3+-) 41...Rc3 (41...Kf7!?+/-) 42.Bf4+- Rb3 43.Kf5 (better 43.Bb8 Rb5 44.Ba7 h5 45.Kh5+-) 43…Rb5=. Nadimifar,A (2210) - Martinovici,Ilia (2375), Titled Arena May 8th, 2021. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 e5 3.Bb2)

4.Nf3+= Nc6 5.Bc4 h6 (5...cb4!? 6.0-0 Nf6+=) 6.Nc3 Nf6 (worse is 6...Nb4 7.Nb5 Qb6 8.Ne5+/- (worse is 8.Be5 d6 9.Bg3 Be6 10.Be6 Qb5+=)) 7.Nb5 Qb8 8.Nc3 cb4 9.Nd5 Be7 10.Ne7 Ke7 11.0-0 d6 12.d4 ed4 13.Nd4 Be6 (13...Ne4? 14.Qe2 f5 15.f3 Nd4 16.Bd4+-) 14.Ne6 fe6 15.f4 b5 16.Bb3 Re8 17.e5 (17.Bf6!? Kf6 18.f5 Qb6 19.Kh1+=) 17...de5+= 18.fe5 Ne5 19.Qe1 Qb6 20.Kh1 Ned7 21.Qb4 Qc5 22.Bf6 gf6 23.Qg4 Exerts pressure on e6 23...Kf7 24.Rae1 e6 becomes the focus of attention 24...Nf8 25.Qf4 Qg5= 26.Qc7 Re7 27.Qc3 Rd8 28.Re5 b4 29.Qb2 Qg6 30.Re3= Red7 31.Qa1 f5 32.Ref3 Ke7 33.Rg3+/- Qh5 34.Rg7 Kd6? 35.Rd1 Kc7+/- 36.Qe5 Kc8?? 37.Qc5+- Kb8 38.Rdd7 Nd7 39.Qd6 Kc8 40.Bc4 Nb8 41.Qc7 1–0. Kovalev,Petr – Pushkarev,D, RUS–ch U12 St Petersburg, 1997. (=1.e4 c5 2.b4 e5 3.Bb2 Qc7)

4.Nf3 Bd6? 5.bc5+- Qc5 6.Na3 Nf6 7.Nb5 Ne4 8.Qe2 Nf6?? (better 8...a6 9.Nd6 Nd6+-) 9.d4 Qb6 10.Nd6 Qd6 11.de5 Qb4 12.c3 Qe7 13.ef6 Qe2 14.Be2 g6 (14...gf6 15.0-0-0+-) 15.0-0-0 0-0 (15...d5 16.Bb5 Nc6 17.Rhe1 Be6 18.Ng5+-) 16.Ba3 Re8 (16...d6 17.Bd6 Re8 18.Bc4+-) 17.Bc4 Nc6 (17...d5 18.Bd5 Nc6+-) 18.Rhe1 Rd8 (18...Re6 19.Be6 de6 20.Ne5+-) 19.Ng5 h6 20.Nf7 Rf8 21.Nh6 (21.Nh6 Kh7 22.Bf8 d5 23.Rd5 Be6 24.Rd7 Kh8 25.Bg7 Kh7 26.Be6 Ne5 27.Bf8 Nf7 28.Rf7 Kh8 29.Rh7 Kh7 30.Bg8 Kh8 31.Bg7) 1–0. marekt (2550) – angel027 (1690), ChessWorld.net, 2015. (=1.e4 c5 2.b4 e5 3.Bb2 Qc7)

4.Nf3= Nf6 5.Nc3 b6 6.Nd5 (6.Nb5!? Qb7 7.Be5 Qe4 8.Be2+/-) 6...Qd8? (better is 6...Nd5 7.ed5 f6=) 7.Ne5+- 1–0. Jennewein,Norbert – Engel,H, PF–op Mehlingen, 1992. (=1.e4 c5 2.b4 e5 3.Bb2 Qc7)

3.Bb2 d6

4.bc5 a6 5.Nf3 Nc6 (5...Nf6 6.cd6 Bd6 7.Ne5+-) 6.Bc4+- Nf6 (6...Qc7 7.cd6 Bd6 8.Ng5+=) 7.Nc3 (7.Ng5 d5 8.ed5 Na5+=) 7...h6 8.Nd5 (8.cd6 Qd6 9.Nd5 Bg4+-) 8...Be6 (8...Ne4!? 9.cd6 Nd6= (worse 9...Qd6 10.Qe2 Bf5 11.d3+-)) 9.Qe2+- g6 (9...Bg4 10.cd6 Bd6 11.Ne3+-) 10.0-0+- Bg7 11.Nb6 Rb8 12.Be6 fe6 13.Nc4 0-0 (13...dc5 14.Nfe5 Ne7 15.Nd3+-) 14.cd6 (14.Nd6 Nh5+-) 14...Nh7 (14...Nd7 15.a4+-) 15.a4 b5 (15...Nd4 16.Bd4 ed4 17.e5+-) 16.ab5 (16.Nce5 Ne5 17.Be5 Ng5 18.Bg7 Nf3 19.gf3 Kg7 20.ab5 Qg5 21.Kh1 ab5 22.Ra7 Kg8+-) 16...ab5 17.Nce5 Qd6 (17...Ne5 18.Be5 Ng5 19.Bg7 Nf3 20.gf3 Qg5 21.Kh1 Kg7 22.e5+-) 18.Nc6 Qc6 19.Bg7 Kg7 20.Ra7 Kh8 (20...Kg8 21.Qe3 Ra8 22.Ra8 Ra8 23.Qh6+-) 21.Qd3 (21.Ne5 Qb6 22.Rfa1 Kg8+-) 21...Nf6 (21...Rbd8 22.Qe3 g5 23.Ne5+-) 22.e5 (22.Ne5 Qc5 23.Ng6 Kg8 24.Nf8 Qa7 25.Ne6 Re8 26.Qg3 Kh8+-) 22...Ne4 23.Qe3 Rb7 (23...g5 24.d3 Nc3 25.Ng5 Rb7 26.Nf7 Kg8 27.Qh6 Rbf7 28.Qg6 Kh8 29.Rf7 Rf7 30.Qf7 Qd5+-) 24.Qh6 Kg8 25.Qg6 Kh8 26.Rfa1 (26.Rb7 Qb7 27.Re1 Nc5+-) 26...Rfb8 (26...Nc5 27.Ng5 Qd7 28.Rb7 Qb7 29.d4+-) 27.Qh6 Kg8 28.Ng5 Ng5 (28...b4 29.Qg6 Kf8 30.Ne6 Ke7 31.R1a6 Ra7 32.Qg7 (32.Rc6?? Ra1) 32...Ke6 33.Rc6 Kd5 34.Qa7 Kc6 35.Qb8 Nd2 36.Qd6 Kb7 37.Qb4 Kc6 38.Qd2 Kb5 39.Qd5 Kb4 40.e6 Kc3 41.Qc5 Kd2 42.e7 Kd1 43.e8Q Kc1 44.Qee3 Kd1 45.Qd5 Kc2 46.Qdb3) 29.Qg5 Kf7 30.Qf6 Ke8 31.Qh8 Kf7 32.Qb8 Ra7 33.Ra7 Kg6 (33...Qc7 34.Qc7 Kg6 35.Qg7 Kh5 36.Ra8 b4 37.Rh8) 34.Qf8 Qe4 (34...Qe8 35.Qf6 Kh5 36.Rh7 Kg4 37.h3) 35.Rg7 (35.Rg7 Kh5 36.Qh8 Qh7 37.Qh7) 1–0. marekt – angel027, ChessWorld.net, 2016. (=1.e4 c5 2.b4 e5 3.Bb2 d6)

4.bc5+= dc5 5.Be5 Nc6 6.Bb5 Bd7 7.Bc3 Nf6 8.d3 Be7 9.Nf3 0-0 10.Nbd2 a6 11.Bc6 Bc6 12.0-0 b5 13.Ne5 Bb7 14.Nb3 c4 15.Nd4 cd3 16.cd3 Bc5 17.Ndf3 Qc7 18.Qc2 Rac8 19.Rfc1 b4?? 20.Bb2 Qb6 21.Nc4 Nd5?? 22.Nb6+- Bb6 23.Qd2 Nf6 24.Rc8 Bc8 25.Rc1 a5 26.Bf6 gf6 27.Qf4 Kg7 28.Rc6 Ba7 29.Qf6 Kg8 30.Ng5 (30.Ng5 Bf5 31.Qf5 Bf2 32.Kf2 Rd8 33.Qh7 Kf8 34.Qf7) 1–0. clavecinist (2090) – zook (1840), net–chess.com, 2008.

3.b5 a6

4.Nc3 ab5 5.Bb5+= Nf6 6.Nf3 Bd6 7.0-0+= 0-0 8.Bc4 h6 9.Nb5 Qe7? 10.Nh4+- Ne4 11.Nf5 Ra4 12.Ne7 Be7 13.Bb3 c4 14.Ba4 1–0. pierred (2745) – zook (1840), net–chess.com, 2008.

4.Nf3 b6 5.Ne5+/- a5?? (5...d6 6.Nf3+/-) 6.a4 (better 6.Bc4!? Qe7 7.Bf7 Kd8+-) 6...Qf6? (better 6...d6 7.Nc4 Nf6+-) 7.Bb2 Qf4 (7...d6 8.Nc4 Qd8 9.Bd3+-) 8.d3 (better 8.Ra3 Nf6 9.Rf3+-) 8...Bd6 (8...d6 9.g3 Qh6+-) 9.Nc4 Bc7 (9...Bf8 10.Nb6 Bb7 11.Na8 Ba8+-) 10.Bg7 f6 (10...Nf6 11.Bh8 d5 12.ed5 Nd5 13.g3+-) 11.Bh8 (11.Nc3 Kf7 12.Bh8 Bb7+-) 11...Be5 (11...Kf8 12.Nc3 Bb7 13.g3+-) 12.Ne5 (better 12.g3 Qh6 13.d4 cd4+-) 12...Qe5 13.Nd2 Ke7 (13...d5 14.Be2 Ne7 15.0-0+-) 14.Bg7 (14.Nc4!? Qe6 15.f4 Kd8+-) 14...h6 (14...Qg5 15.Nc4 Qg7 16.Nb6+-) 15.Nf3 (better 15.Nc4 Qe6 16.Qh5 Ra7+-) 15...Qc3 16.Nd2 Kf7?? (16...Qe5 17.Nc4 Qe6+-) 17.Bh8+- Bb7 (17...Kf8 18.Rb1 d5 19.Be2+-) 18.Qh5 Ke7 19.Rc1 (better 19.Rd1 d5 20.Be2+-) 19...Bc8 (19...d5 20.Be2 de4+-) 20.Qg6 (20.Qd5 Qe5 21.Qa8 d5+-) 20...Qb2 21.Kd1 Qc1 22.Kc1 1-0. Mrfrankthetank – Gazpacho, ChessWorld.net, 2020. (=1.e4 c5 2.b4 e5 3.b5)

4.Nf3 Nf6 5.Nc3 d6 6.Bc4 =. mberlin (2190) – amayfer (1820), net–chess.com, 2009.

3.b5 d5

4.ed5 Qd5 5.Bb2 Nf6 6.Qe2 c4 (better is 6...Bd6!?=) 7.Be5+/- Bg4 8.Nf3 Bf3 9.gf3 Be7 10.Bf6 gf6 11.Nc3 Qe6 12.f4 Nd7 13.Qe6 fe6 14.Bc4 Nc5 15.0-0-0 0-0-0 (15...Bd6 16.d4 Bf4 17.Kb2+-) 16.d4 Nd7 17.Be6 Rhe8 (17...Rde8 18.Rhe1 Bb4 19.Kb2+-) 18.f5 Kb8 19.Kb2 Nb6 20.Ne4 Nc8 21.c4 Nd6 22.Nc3 b6 23.Kb3 Bf8 24.Rhg1 Bh6 25.c5 (25.Rg4 Rh8+-) 25...Nb7 (25...bc5 26.dc5 Nb7 27.c6 Nc5 28.Kc4 Rd1 29.Rd1 Ne6 30.fe6+-) 26.c6 Nd6 27.a4 Rh8 28.Nd5 Rdf8 29.Rd3 Ne8 30.Rdg3 Bd2 31.a5 (better is 31.Rg7!? Ng7 32.Rg7 Rc8+-) 31...ba5 32.b6 ab6 33.Rg7! (worse is 33.Nb6 Kc7 34.Nd7 Kc6+-) 33...Nd6 (33...Ng7 34.Rg7) 34.c7 Ka8 35.Nb6 Kb7 36.c8Q Kb6 37.Qc5 (37.Qc5 Ka6 38.Qc6) 1–0. Taulien,Hans_Juergen – Brueske,Thomas, remoteschach.de, 2003.

4.ed5 Qd5 5.Nc3 =.

3.b5 d6

4.Nc3 =. yourmove (2795) – naskme (2020), net–chess.com, 2008.

4.Bc4 a6 5.Nc3 Nf6 6.d3 ab5 7.Bb5 (7.Nb5 Be7=) 7...Nc6=+ 8.Nge2 Be7 9.0-0 0-0 10.a4 Be6 11.f4 Bd7 12.f5 Nb4 13.Bd7 Qd7 14.Ng3 d5 15.Nb5 (better 15.ed5!? Nfd5 16.Nd5 Qd5 17.Bd2=+) 15...de4-/+ 16.Ne4 Ne4 17.de4 Qd1 18.Rd1 Nc2 19.Ra2 Nb4 20.Rad2 (20.Ra1 Rfd8 21.Bd2 Rac8-+) 20...c4 21.Rd7 Bc5 22.Kf1 Ra4 23.Bb2 (23.Bd2 b6-+) 23...Nd3 24.Bc1?? (24.Bc3 b6 25.Rd2-+) 24...Ra1 25.R7d3 (25.Rb7 Rc1 26.Rc1 Nc1-+) 25...cd3 26.Nc3 Rc8 27.Ke1 (27.Bb2 Rd1 28.Nd1-+) 27…Bb4 (27...Bb4 28.Bd2 Bc3 (28...Rc3?! 29.Ra1 Ra3 30.Ra3 Ba3 31.Kd1-/+) 29.Ra1 Ba1-+) 0-1. Mrfrankthetank – marekt, ChessWorld.net, 2020. (=1.e4 c5 2.b4 e5 3.b5)

3.b5 Nf6

4.Nc3 a6 5.Nf3 ab5 6.Bb5 Nc6 7.0-0 d6 8.Bc4 Be7 9.d3 0-0 10.a4 ½–½. juliangon (2550) – Magellen (2670), ChessWorld.net, 2013. (=1.e4 c5 2.b4 e5 3.b5 Nf6)

4.Nc3 d5 5.ed5 Nd5 6.Nd5 Qd5 7.Ne2 Be7 8.Nc3 Qd8 9.Bc4 0-0 10.h3 Nd7 11.Nd5 Nf6 12.Ne7 Qe7 13.Bb2 b6 14.0-0 Bb7 15.Re1 Nd7 16.Qh5 Rfe8 17.Re3 g6 18.Qh6 Kh8 19.Rae1 f6 20.f4 Qd6 21.d3 Re7 22.fe5 Ne5 23.Be5 (23.Rf1!?+-) ½–½. Schulz,Han (1845) – Abdurrahman,Emhmed, 4th HSK Easter Open, 2018. (=1.e4 c5 2.b4 e5 3.b5 Nf6)

4.Nc3 d5 5.ed5 Nd5 6.Qe2 =.

4.Nc3 d6 5.Nf3 Bd7 6.a4 a5 (6...Be6!?=) 7.Bc4+= Bg4 8.h3 Bf3 9.Qf3 Be7 10.g4 (10.0-0 0-0+/-) 10...g5 (10...0-0 11.g5 Nfd7 12.Bd5+=) 11.h4+/- Rg8 12.hg5 Rg5 13.Rh7! Kd7 (13...Nh7 14.Qf7) 14.Rf7 Kc7?? (14...Ng4 15.Nd5 Kc8 16.Ne7 Kd7 17.Nc6 Kc8 18.Be6 Nd7 19.Nd8 Nh2+-) 15.Qf6 Rg4 16.Nd5 (16.Nd5 Kc8 17.Ne7 Kc7 18.Nd5 Kc8 19.Qe6 Nd7 20.Qg4 Kb8 21.Qd7 Qd7 22.Rd7 b6 23.Rd6 Kc8 24.Nb6 Kb8 25.Na8 Ka8 26.Bd5 Ka7 27.Bb2 Kb8 28.Rc6 Kb7 29.Rc5 Ka7 30.Rb1 Kb8 31.Be5 Ka7 32.Rc8 Kb6 33.Bd4) 1–0. Taulien,Hans_Juergen – Fritz,Marco, remoteschach.de, 2002.

4.Nc3 Be7 5.Bc4 0-0 6.f3 b6 7.Rb1 Bb7 8.Bb2 d6 9.Nge2 Qd7 10.0-0 d5 11.ed5 Nd5 12.Nd5 Bd5 13.Bd5 Qd5 14.Nc3 Qe6 15.f4 ef4 16.Qf3 Nd7 17.Nd5 Bd6 18.Rbe1 Qh6 19.Nf4 Bf4 20.Qf4 Qg6 21.Re7 Rad8 22.d3 h6 23.Rf3 Qg5 24.Rf7 Rf7 25.Qf7 Kh8 26.Rg3 Black resigned 1–0. Bazza3 – Danno12, ChessWorld.net, 2006. (=1.e4 c5 2.b4 e5)

4.Nc3 Be7 5.Nf3 0-0 6.Ne5 Re8 7.Bc4+/- Rf8 8.0-0 Bd6 (8...d6!? 9.Nd3 Ne4 10.Ne4 d5 11.Bd5 Qd5+=) 9.Nf3 Re8 10.Re1 Bc7 11.Ng5 Rf8 12.Ba3 b6? (12...d6 13.d4 Ba5 14.Bb2+-) 13.d4 (better 13.Nf7 Rf7 14.Bf7 Kf7 15.e5+-) 13...Re8?? (13...d6+-) 14.dc5 (14.Bf7 Kh8 15.Be8 Qe8+-) 14...bc5 15.Bc5 (15.Bf7 Kh8 16.Bd5 Nd5 17.Nf7 Kg8 18.Qd5 Qf6 19.Nd6 Re6+-) 15...d6 (15...Bh2 16.Kh2 d5 17.Bd5 Ng4 18.Kg1 Qg5+-) 16.Nf7 Qe7 17.Nd6 Be6 18.Ne8 (18.Nd5 Nd5 19.Ne8 Qc5 20.Bd5 Bd5 21.Nc7 Bb7 22.Qd8 Qf8+-) 18...Qe8 19.Nd5 Nbd7 (19...Be5 20.Nf6 Bf6 21.Be6 Qe6+-) 20.Nc7 Qc8 21.Ne6 (better 21.Be6 Kh8 22.Na8 Qc5 23.Bd7 Qe5+-) 21...Nc5 22.Nc5 (better 22.Nd8! Kh8 23.Nf7 Kg8 24.Nd6 Kh8 25.Nc8 Rc8+-) 22...Kh8 23.Qd6 1-0. DarkKnightsPawn (2055) - Work in Progress, ChessWorld.net, 2013. (=1.e4 c5 2.b4 e5 3.b5)

4.d3 d5 5.ed5 Nd5 6.Bb2 Qa5 7.Qd2 Qb5 (7...Qd2 8.Nd2 Nb4 9.Kd1=+) 8.Be5 (better 8.c4 Qd7 9.cd5 Qd5 10.Qe3+-) 8...Nc6=+ 9.Nc3 Nc3 10.Qc3 (10.Bc3 Qa4=+) 10...Ne5-/+ 11.Qe5 Be6 12.Nf3 Qb4 13.Nd2 Qd4 14.Qd4 cd4 15.a3 (15.Be2 0-0-0-/+) 15...Be7 (15...Rc8 16.Nf3 Bc5 17.Be2-/+) 16.Be2 Rc8 17.Nc4? (better 17.Kd1!?-/+) 17...b5-+ 18.Ne5 Rc2 19.Bd1 (19.Bf3 Kf8-+) 19...Rc5 20.Nf3 Bf6 21.0-0 (21.Rb1 Ke7-+) 21...0-0 (21...Rc3 22.Rb1 Ra3 23.Rb5-+) 22.Rb1 a6 (22...Rb8 23.Bb3-+) 23.a4 (23.Rb4 a5 24.Rb1 Bf5-+) 23...h6 (23...Bf5 24.Ne1-+) 24.ab5 Rb5 (24...Rb8 25.b6 Rb5 26.Rb5 ab5 27.Nd2-+) 25.Ba4 Ra5 (25...Rb1 26.Rb1 Rc8 27.Kf1-+) 26.Bc6 (26.Bb3 Bb3 27.Rb3 Rc8-+) 26...Rc8 27.Be4 g6 (27...Ra2 28.h3-+) 28.Rb7 (28.Rb6 Kg7-+) 28...Rac5 (28...Ra2 29.Rb6-+) 29.h3 (29.Rb6 a5-/+) 29...a5-+ 30.Ra7 (30.Rb6 Kg7-+) 30...R8c7 (30...Kg7 31.Ra6-+) 31.Ra6 Kg7 32.Kh2 Bb3 33.Nd2 (33.Ra1 a4-+) 33...a4 (33...Bc2 34.Nf3-+) 34.Nb3 ab3 35.Rb6 Rc3 36.Rb1 Be5 37.g3 f5 38.Bd5 (better 38.Bg2 Rd3 39.f4-/+) 38...Rc2?? (better 38...Rd3 39.Kg2 Rdc3-+) 39.Kg2= R2c3 (39...g5 40.Bb3 R2c6 41.Be6=) 40.Bc4 (40.Re6 Bf6 41.Rb3 Rb3 42.Bb3=) 40...R7c4 (better 40...f4!?=+) 41.dc4+= d3 (41...Rc4 42.R1b3 Bc7+-) 42.Rb7 (42.R6b3 d2 43.Rc3 Bc3+-) 42...Kf6+- 43.R7b3 Rc4 (43...Rb3 44.Rb3 d2 45.Rd3+-) 44.Rd3+- h5? Black prepares f4 (44...Bd4 45.f4+-) 45.h4 (better 45.Rb6!? Ke7+-) 45...f4 46.Rb6 Kf5 47.Rb5 (47.Rd8 fg3 48.fg3 Rg4 49.Rf8 Ke4 50.Rb4 Bd4 51.Re8 Kd3+-) 47...Kg4?? (better 47...fg3 48.Rf3 Rf4 49.Rf4 Kf4 50.fg3 Ke4+-) 48.Re5 (48.Re5 fg3 49.fg3 Rc2 50.Kf1 Rc1 51.Ke2 Rc2 52.Kd1+-) 1–0. GuestXFGP – GuestVWXG, freechess.org, 2018.

3.c3 cb4

4.cb4 Bb4-/+ 5.a3 Ba5 (5...Bc5 6.Nc3-/+) 6.Nf3 (6.Qg4 Qf6-/+) 6...Nf6 7.Qe2 (7.Qc2 0-0-/+) 7...0-0 8.Ne5 (8.Nc3 Nc6-/+) 8...Re8-+ 9.Qf3?? (better 9.Bb2-+) 9...Re5 10.Bc4 (10.Bb2 Re4 11.Be2 Re6-+) 10...Re4 (better 10...Qc7 11.0-0 Qc4-+) 11.Kf1 (11.Be2 d5 12.Qb3-+) 11...Rc4 12.Bb2 Qb6 (12...Qb6 13.Bc3 d5-+) 0–1. Takahach (1620) – BlackDemon (2610), FICS rated standard game, 2013. (=1.e4 c5 2.c3 e5 3.b4 cb4)

4.cb4 Bb4-/+ 5.Ba3 Ba3-+ 6.Na3 Nf6 7.Qa4 0-0 8.Bd3 (better 8.Nf3-+) 8...d5 9.Nc2 (9.Nf3 Nbd7 10.Qc2 de4 11.Be4 Ne4 12.Qe4 Nc5-+) 9...Bd7 10.Bb5 (10.Qa3 de4 11.Bc4 b5-+) 10...Ne4 11.Qb4 (11.Bd7 Nd7 12.Nf3-+) 11...Qb6 12.Bd7 (12.Ne3 Bb5 13.a4-+) 12...Qf2 13.Kd1 a5 (13...a5 14.Nh3 Qg2-+ (14...Nd7?! 15.Qe4 Qc5 16.Qf5-/+)) 0-1. Gazpacho – marekt, ChessWorld.net, 2020. (=1.e4 c5 2.b4 e5 3.c3)

4.cb4 Bb4-/+ 5.Bc4 Nf6 6.Nf3 (6.Qb3 Qe7-/+) 6...Nc6 (6...Ne4 7.Qb3 Qe7 8.Bf7 Qf7 9.Qb4-/+) 7.a3 Bc5 8.Bf7?? (better is 8.Nc3-/+) 8...Kf7-+ 9.0-0 (9.Nc3 d6-+) 9...Ne4 10.d3 Nf6 11.Qb3 d5 12.Bg5 b6 13.Bf6 gf6 14.Nbd2 Be6 15.Qb5 Bd7 16.h3 Rg8 17.Kh2 Qc7 18.Qb1 e4 19.Kg1 ef3 20.Nf3 Bh3 21.Nh4 Rg4 22.g3 Qg3 (22...Qg3 23.Kh1 Bg2 24.Kg1 Bf1 25.Kf1 Qf2) 0–1. zook (1840) – marmite (2125), net–chess.com, 2008.

4.cb4 Bb4-/+ 5.Nf3 Nc6-/+.

4.Nf3 Nc6=+.

3.c3 Nf6

4.bc5 Qa5 =.

4.d3 cb4!? 5.f4 ef4 6.Bf4 bc3 7.Nc3 Nc6 -/+.

4.d3 d6 5.Nf3 cb4=+ 6.cb4 d5 7.Ne5 d4 8.Qb3 Be6 9.Qa4+= Nfd7 10.g3 Be7 11.Bg2 0-0 12.0-0?? Nb6 13.Qa3= Na6 14.Bd2+= Nd7 15.Bf4?? Nb4 16.Nd7 Bd7 17.Qb2 Nd3 18.Qd2 Bb5 19.Rd1 Bb4 20.Qc2? Nf4-+ 21.gf4 Rc8 22.Qb2 a5 23.Na3? Ba6 24.e5 Qe7 25.Nc2 Bc3 (25...Bc3 26.Qb6 d3-+) 0–1. zurbateur (1655) – zook (1840), net–chess.com, 2008.

4.d4 b6?? 5.de5+- Ne4 6.Qd5 Nc3 7.Nc3 Nc6 (7...Nc6 8.b5 Nb4 9.Qa8 Nc2 10.Kd2 Na1+-) 1–0. chessleon (1995) – segovia (1900), net–chess.com, 2010.

3.Bc4 cb4

4.a3 Nf6 5.Qe2 ba3 6.Nf3 Nc6 7.0-0 Bc5 8.Ba3 Ba3 9.Na3 0-0 10.c3 d6 11.Rab1 Qe7 12.Nc2 Be6 13.Rb2 Rac8 14.Bd3 Nh5 15.g3 Nf6 16.Ng5 a6 17.Ne3 h6 18.Ne6 fe6 19.Bc2 d5 20.ed5 ed5 21.Rb6 e4 22.Rfb1 Rc7 23.d4 Qd7 24.Bb3 Kh8 25.Qb2 Nd8 26.Rf6 gf6 27.Nd5 Rc6 28.Nf4 Re8 29.c4 1–0. Ruhmke,Stephan (2235) – Kapfenstein,Armin (1720), RSL – Einzelliga–Qualif., 2008.

4.Nf3 Nc6 5.0-0 Bc5 6.a3 Nf6 7.ab4 Bb4 8.c3 Be7 9.d4 d6 10.Ng5 0-0 11.Qb3 Qe8 (worse is 11...ed4 12.Nf7 Qc7 13.Nd6 Kh8 A) worse is 14.Nc8 Rac8 (worse is 14...Qc8 15.Re1=) 15.Be6 Rce8+=; B) 14.Nf7 Rf7 15.Bf7+=) 12.f4 (12.d5 Nd8+=) 12...h6 (12...ed4 13.cd4 h6 14.d5 hg5 15.dc6 Qc6 16.fg5 Ne4 17.Bd5=) 13.Nf7 Rf7 14.fe5 de5 15.Be3 Bd6 (15...b6 16.Bf7 Qf7 17.Qb5-/+) 16.Nd2 (16.Bf7 Qf7 17.Qf7 Kf7+=) 16...b6 17.Bh6 (17.Bf7 Qf7 18.Qf7 Kf7+=) 17...Na5 (better is 17...ed4!? 18.Bg5 dc3 19.Bf7 Qf7 20.Qc3 Nd4-+) 18.Bf7+= Qf7 19.Qf7 Kf7 20.Be3 (20.Bg5 Ke7+=) 20...Ba6 21.Rf5 Ke6 22.Bg5 Ne4!-+ 23.g4? Nd2 24.Bd2 Bd3 25.Rg5 Nb3 26.Rd1 Bc2 (26...Bc2 27.Rf1 Nd2-+ (worse is 27...ed4 28.cd4 Nd4 29.Re1 Kf7 30.Kg2-+); 26...Nd2?! 27.Rd2 e4 28.Rg7-+) 0–1. Garcia B,Omar – Iturry,Milton (2205), Lima schev, 2000. (=1.e4 c5 2.b4 e5 3.Bc4 cb4)

4.Nf3 Nc6 5.0-0 Nf6 6.Re1 Bc5 7.Ne5?? Bf2! 8.Kf2 Ne5 9.Bd5 0-0 10.h3? Nd5-+ 11.ed5 Nd3!! 12.cd3 Qf6 13.Kg1 Qa1 14.Qb3 Qd4 15.Kh1 d6 16.Bb2 Qf4 17.Qd1 Bf5 18.Rf1 Qg5 19.Qf3 Bg6 20.Bd4 b6 21.g3 Rae8 22.h4 Qh5 23.Qh5 Bh5 24.Rf5 Be2 25.a3 Bd3 26.Rg5 f6 27.Rg4 Bb1 (27...Bb1 28.ab4 Re2-+) 0–1. Bosse,Volkmar – Hahn,Steffen, VfB op 4th Leipzig (6), 1997.

4.f4 ef4-/+ 5.Nf3 d5 6.Bd5 Nf6 7.Bb3 Be7 (7...Ne4 8.Qe2 Qe7 9.d3-/+) 8.0-0 (8.d3 Qc7+=) 8...0-0 (8...Ne4 9.d4-/+) 9.Re1 Bg4 10.d4 Nc6 11.Bb2 Nh5 12.Qd3 Qb6 13.Kh1 Rad8 14.Nbd2 Na5 15.Ne5 Bc8 (worse is 15...Nb3 16.ab3 (16.cb3?! Bc8=) 16...Be6 17.Ndc4+=) 16.Qf3 Qh6 17.Ndc4 Nc4 18.Nc4 Bh4 19.Red1 Qg5 20.Ne5 Rd6 (20...Nf6 21.Bc1+=) 21.Qe2 (21.a3!? Nf6 22.ab4+/-) 21...Rh6 (21...Qh6 22.Kg1 Be6+=) 22.Kg1+= Nf6?? (better is 22...Be6+=) 23.d5 (better is 23.Nf7 Rf7 24.Qc4+-) 23...Ng4 24.Nf3 Qh5 25.d6 Bf2 26.Kf1 Bd7 (26...Bg3!? 27.Bd4 Rd6-+) 27.Rd5-/+ Qg6 28.Rg5 Qg5?? 29.Ng5+/- Bg3? 30.h3+- Ne3 31.Kg1 Rg6 32.Qh5 Kh8 1–0. Husarik,Branko (2045) – Kubikova,Hana (2130), CZE–chT2c, 2005. (=1.e4 c5 2.b4 e5 3.Bc4 cb4)

3.Bc4 Nc6

4.b5 Nd4 5.c3 Ne6 6.Nf3 Qc7 7.0-0 Nf6 8.d3 Be7 9.Be3 0-0 10.Nbd2 Rd8 11.Qb3 h6 12.a4 d6 13.a5 Qd7 14.b6 a6 15.Rac1 Qe8 16.Rfe1 Bd7 17.d4 (17.h3 Rac8+-) 17...ed4 (17...Ng4 18.Bd5 Rab8 19.Nc4 ed4 20.cd4 Ne3 A) 21.Re3?! cd4 (worse 21...Nd4 22.Nd4 cd4 23.Rd3+-) 22.Ree1 Nc5=; B) 21.fe3?! Rdc8+-; C) worse 21.Qe3 Bb5+-; D) 21.Ne3 Nd4 22.Nd4 cd4 23.Nf5+-) 18.cd4+- cd4 19.Bd4 Rac8 20.Bf6 (20.Be3 Qf8+-) 20...Bf6+= 21.Bd5 Nc5 22.Rc5 (better 22.Qa3 Be6 23.Nc4+=) 22...Rc5-/+ (worse 22...dc5 23.e5 Bg5 24.Ng5 hg5 25.Bb7+-) 23.Bb7 Bb5 (23...Ra5 24.Nc4 Be6 25.Bc6-/+) 24.Bd5 (24.Qa3 Bc6 25.Bc6 Qc6=) 24...Rdc8 (24...Bc3 25.Qa2=+) 25.Bb7 Rb8 26.Bd5 (26.e5!? Be5 27.Ne4=+) 26...Bc3-+ 27.Qa2 Bc6 28.Bc4 Ra5 29.Qb3 Bd2 30.Nd2 d5! 31.Qc3 (31.Bd5 Rb5 Double attack (31...Rb5 Decoy); 31.ed5 Qe1 Pinning (31...Qe1 Deflection)) 31...Rc5 (31...dc4?! 32.Qa5 Bb5 33.Nf3=+) 32.Qa3 Rc4 (32...dc4?! 33.Qc5 Bb5 34.Rc1=+ (worse 34.Nc4 Rc8 35.Nd6 Rc5 36.Ne8 Be8-+)) 33.Nc4 dc4 34.Qa6 Qe6 (34...Be4 35.f3 Qd8 36.fe4 Qb6 37.Qb6 Rb6 38.Rc1-/+) 35.f3 (35.Qa7 Rb7 36.Qa5 Qd6-+ (36...Be4?! 37.f3-+)) 35...Ra8 36.b7 Ra6 37.b8Q Kh7 38.Rd1 Ra8 (38...f5 39.Rd8 fe4 40.Rh8 Kg6 41.Qg3 Kf7 42.Qf4 Qf6 43.Qc7 Kg6 44.Qg3 Kf5 45.fe4 Be4 46.Qf2 Ke6 47.Qf6 Kf6 48.Re8 Ra1 49.Kf2 Ra2 50.Ke3-+) 39.Qb2 Rc8 40.e5 (40.Ra1 Bd7-+) 40...Ba4 41.Rd6 (41.Rc1-+) 41...c3 42.Qb1 (42.Re6 cb2 43.Rb6 Rc1 44.Kf2 b1Q 45.Rb1 Rb1-+) 42...c2 43.Qc1 0–1. Joensen,Jogvan Martin (1675) – Samuelsen,C (2210), TCh–FAI, 2017. (=1.e4 c5 2.b4 e5 3.Bc4 Nc6)

4.Nf3 h6 (4...cb4 5.0-0+=) 5.0-0 (better is 5.b5!? Nb4 6.a3+/-) 5...cb4= 6.a3 Nf6 7.ab4 Bb4 8.c3 Bc5 9.d4 Bd6 10.Na3 0-0 (worse is 10...Ne4 11.de5 Ba3 12.Qd5+/-) 11.Nb5 Bb8 (worse is 11...Ne4 12.Qc2 Na5 13.Ra5 Qa5 14.Qe4+-) 12.Re1 d6 13.Qb3 Bg4 14.de5 de5 15.Nh4? (15.Ba3!? Na5 16.Qa2 Nc4 17.Bf8 Bf3 18.Qc4 Ne4 19.Re4=) 15...Na5 16.Qb4 Nc4 17.Qc4 Be6 18.Qe2 a6 19.Nf5 (19.Rd1 Qe8 20.Nd6 Qc6-+) 19...Bf5 (19...Bc4 20.Qf3 Bb5 21.Bh6-/+) 20.ef5 e4 21.Nd4 Qc7 22.g3 Qc3 23.Be3 Be5 24.Red1 Rfd8 25.Rac1 Qb4 (25...Rd4 26.Bd4 Bd4 27.Rc3 Bc3 28.f3+/-; 25...Bd4?! 26.Rc3 Bc3 27.f3-+) 26.Rb1 Qe7 (26...Rd4?! 27.Bd4 Qe7 28.Be5 Qe5 29.Rb7 Qf5 30.Ra1+=) 27.f4 ef3! 28.Nf3 (28.Nf3 Rd1 Decoy; 28.Qf3 Nd5 Combination) 28...Bc3 29.Kf1 b5 30.Bd4 Qe2 31.Ke2 Ne4 32.Rbc1 Bd4 (32...Re8 33.Kf1 b4 34.Bc3 Nc3 35.Rd7-+) 33.Nd4 b4 34.Ke3 Nc3 35.Re1 a5 36.g4 a4 (36...Rd6 37.Nb3-+) 37.Nc6 Re8 38.Kd3 Na2 39.Rb1 b3 0–1. Bjarnemark,Douglas – Rintakoski,Pentti, Kuopio op2, 1990. (=1.e4 c5 2.b4 e5)

3.Bc4 Nf6

4.d3 cb4!? 5.Nf3 Nc6+=.

4.d3 Qc7 5.b5= Be7 6.Nc3 b6 7.Qe2 Bb7 8.f4 d6 9.Nf3 Nbd7 10.0-0 0-0 11.fe5 Ne5 12.Ne5 de5 13.Bg5 Qd6 14.Nd1 a6 15.Ne3 Qd7 16.Rab1 a5 (16...ab5 17.Bb5 Bc6 18.Bf6 Bf6 19.Rf6 Bb5 20.Rb6+-) 17.Rf5 Qd6 (17...Qd4 18.Kh1 Qd6 19.Bf6 Bf6 20.Ng4+/-) 18.Rbf1 (better is 18.Bf6 Bf6 19.Ng4+/-) 18...Rad8? (better is 18...Bc8+/-) 19.Rf6! Bf6? (19...Bf6 20.Bf6; 19...gf6 20.Bh6 Combination) 20.Bf6 Qf6 (20...Bc8 21.Bd8 Qd8+-) 21.Rf6 gf6 22.Nf5 (better is 22.Qg4 Kh8 23.Qh4 Bc8 24.Qf6 Kg8 25.Qg5 Kh8 26.Bf7 Rf7 27.Qd8 Kg7 28.Qc8 a4+-) 22...Kh8 23.Qh5 Bc8 24.Qh6 Bf5 25.Qf6 Kg8 26.ef5 1–0. Huettemann,Ralf (1930) – Hagenauer,Joerg (1995), Bad Zwesten op 8th, 2004. (=1.e4 c5 2.b4 e5)

4.d3 h6 5.bc5 d6 (5...Bc5!? 6.Nc3 0-0=) 6.cd6+/- Bd6 7.h3 0-0 8.Nf3 Nbd7 9.0-0 a6 10.Nc3 (10.a4 Qc7+/-) 10...Nh7 (10...b5!? 11.Bb3 Bb7+=) 11.Be3 Ndf6 12.d4 Qe7 (12...Qc7 13.de5 Qc4 14.Qd6 Ne4 15.Qd5 Qc3 16.Qe4+/-) 13.d5 (13.de5 Be5 14.Ne5 Qe5+-) 13...Bd7 14.Be2 (14.a4!?+/-) 14...b5 15.Bd3 b4 16.Ne2 a5 (16...Nd5 17.ed5 e4 18.Ned4+=) 17.a4 (17.c4 Rac8+/-) 17...Qe8 (17...Rfc8 18.Ng3+=) 18.Nc1 Ba4 19.Nb3 Bb3 20.cb3 Qe7 (better 20...Nd5 21.ed5 e4+=) 21.Be2?? (better 21.Qc2+/-) 21...Ne4-/+ 22.Bd2 Nhf6 23.Nh4 (23.Bc4!? Rfc8-/+) 23...Bc5 24.Nf5 Bf2?? (better 24...Qd7 25.Ne3 Rfc8-+) 25.Rf2= Qd7 (25...Qa7 26.Be3 Nf2 27.Qf1+=) 26.Rf3+= Nh5? (26...Nd5 27.Bh6 Qa7 28.Kh2 Ndc3+/-) 27.g4 (27.Be3 Nc3 28.Qd2 Nf6+-) 27...Nhf6 28.g5! Ng5 (28...Ng5 29.Nh6 Double attack; 28...hg5 29.d6 Passed pawn) 29.Rg3?? (better 29.Bg5 hg5 30.Qd2+/-) 29...Qf5-+ 30.Bd3 (30.Bg5 Ne4 31.Rg2 Ng5-+) 30...Nh3 31.Kh2 e4 32.Bf1 (32.Qf1 Nf2 33.Be2 N2g4 34.Bg4 Ng4 35.Kg1-+) 32...Nf2 33.Qe2 N6g4 34.Kg1 Qh5 (34...Qe5 35.Rg4 Ng4 36.Qg4 Qa1 37.Qe4-+) 35.Rg2 (35.Rg4 Ng4 36.Re1-+) 35…Qh1 0-1. Haroldlee123 (1765) - angel027 (1745), ChessWorld.net, 2015. (=1.e4 c5 2.b4 e5 3.Bc4)

4.d3 h6 5.Nf3 b5 6.Bb5 cb4+=.

4.Nf3 Qc7 5.0-0 cb4+= (worse is 5...Ne4 6.Qe2 d5 7.Bd5+/-) 6.Bb3 Nc6 (worse is 6...Ne4 7.Re1 f5 8.d3 Nf2 9.Kf2+/-) 7.Bb2 Bc5 8.Ne5 Ne5 9.d4 Neg4 10.e5 Be7 11.h3 Nh6 (11...d6!? 12.ef6 Nf6+=) 12.ef6= Bf6 13.Re1 Kd8 14.Nd2 d6 15.Ne4 Bf5?? (better is 15...Be7=) 16.Nf6+- gf6 17.Qh5 1–0. Panic,Branko (1960) – Maier,Alexander (1770), Neckar op–B 7th, 2003. (=1.e4 c5 2.b4 e5 3.Bc4 Nf6)

4.Nf3 Qc7 5.b5 a6 (5...Be7 6.Nc3=) 6.b6+= Qb6 7.Ne5 d5 8.Bd5 Be6 (8...Nd5 9.ed5 Qd6 10.Qe2+-) 9.Nc4+- Qb5?? (better 9...Qc7 10.Be6 fe6+-) 10.Nc3+- Qc4 11.Bc4 Bc4 12.d3 Be6 13.0-0 Be7 (13...Nc6 14.Bg5+-) 14.e5 Nd5 15.Nd5 Bd5 16.Qg4 Kf8 (16...Nc6 17.c4 Be6 18.Qg7 0-0-0+-) 1–0. juliangon (2630) – Work in Progress, ChessWorld.net, 2013. (=1.e4 c5 2.b4 e5 3.Bc4 Nf6)

4.Nf3 Ne4 A) worse is 5.Ne5 Qf6 6.Qh5 Qf2 7.Kd1 Qg2+= (7...cb4? 8.Nf7 Qc5 9.Nd6 Ke7 10.Nc8 Kd8 11.Qh4 Ng5 12.Na7 Ra7 13.a3+/-); B) 5.d3 Nd6 6.Bb3 cb4 7.Ne5+=.

4.Nf3 Be7 5.0-0 (5.Ne5 0-0 6.Bf7 Rf7 7.Nf7 Kf7+/-) 5...0-0 6.d3 (6.bc5 Nc6 7.Bb2 Ne4 8.Ne5 Ne5 (worse 8...Bc5 9.Nf7 Qh4 10.d4+-) 9.Be5 Bc5=) 6...cb4=+ 7.Ne5 Nc6 8.Bb2 Ne5 9.Be5 d6 10.Bb2 Be6 11.Nd2 a6 12.h3 d5 13.ed5 Bd5 14.f4 (14.Bd5!? Qd5 15.Rb1=) 14...b5 15.Bb3 a5 16.Nf3? (16.c4 bc3 17.Bc3 Qb6 18.Kh2 Bg2 19.Kg2 Qc6 20.Ne4 Ne4 21.de4 Qc3-/+) 16...a4 (better 16...Bf3!? 17.Qf3 a4-+) 17.Bd5-/+ Qd5 18.Be5 Rfd8 19.Qe1 Re8 20.Qg3 Kh8 21.Rae1? (21.Rfe1 Rac8 22.Re2 Bf8=) 21...Qc6 (better 21...Qa2 22.Rf2 Qd5-/+) 22.Ng5 Rf8 23.Qh4 h6 24.Ba1 (24.Ne4 Qb6 25.Qf2 Qc6=) 24...Bc5 (better 24...Bd8!? 25.f5 Nh7-/+) 25.Kh1= Rae8 (25...Rad8 26.Nf3=) 26.Re5 (26.Bf6 Qf6 27.Re8 Re8=) 26...Re5 (better 26...Kg8!? 27.Nf3 Nd5=+) 27.fe5+/- (worse 27.Be5 Nd5 28.Nf3 Ne3=+) 27...Nh7 28.Nf7 (better 28.Qe4 Qe4 29.Ne4+/-) 28...Kg8-/+ 29.Qf4? (29.d4 Bb6 30.Qh5=) 29...Qe6 (better 29...Ng5!? 30.Nh6 gh6-+) 30.d4-/+ Be7 31.Qg4 Rf7?? (better 31...Qg4 32.Nh6 gh6 33.Rf8 Nf8 34.hg4 Nd7-/+) 32.Qe6+- Ng5 33.Qc8 Kh7 34.Rf7 Nf7 35.e6 (35.Qc7 Bh4 36.Qf7 b3 37.cb3 ab3 38.d5 Bd8 39.e6 b2 40.Bb2 Bf6 41.Bf6 b4 42.Qg7) 35...Bd6 36.Qd7 (36.ef7 h5 37.d5 Bf8 38.Qf8 Kg6 39.Qg7 Kf5 40.f8Q Ke4 41.Qe5) 36...Ng5 37.Qd6 (37.d5 Ne6 38.de6 Be5 39.Be5 Kg6 40.g4 Kg5 41.Qg7 Kh4 42.Qh6) 37...Ne4 38.Qe5 Nf2 39.Kg1 (39.Kh2 Nd1 40.Qf5 g6 41.Qf7 Kh8 42.e7 b3 43.e8Q) 39...Nd1 (39...Nh3 40.gh3 b3 41.e7 Kg6 42.e8Q Kh7 43.Qf5 g6 44.Qfg6) 40.d5 (40.e7 Ne3 41.d5 Nf5 42.Qf5 Kg8 43.e8Q) 40...b3 (40...Nc3 41.Qf5 Kh8 42.e7 Ne2 43.Kf2 b3 44.e8Q) 41.Qe4 (41.Qg7) 41...Kg8 42.cb3 (42.e7 bc2 43.e8Q) 42...ab3 43.e7 b2 (43...ba2 44.e8Q) 1-0. Galleto,Ricardo (1920) - Contardo Oyarzun,Jose (1940), XX Rio Grande Domingo Int, 2020. (=1.e4 c5 2.b4 e5 3.Bc4)

3.Nf3 cb4

4.a3 ba3 5.Na3 Nf6 6.Bc4 Bc5 7.Ne5 0-0 8.0-0 d5 9.d4 Ba3 10.Ba3 dc4 11.Bf8 Qf8 (11...Kf8!? 12.f3 Nc6 13.Nc6 bc6=+) 12.Nc4= Nbd7 (12...Nc6!? 13.d5 Nb4=) 13.Qd3 (13.e5 Ne8+=) 13...b5+= 14.Na5 (14.Ne3 Nb6 15.e5 Nfd5 16.Nd5 Nd5 17.Qb5 Nf4+=) 14...Qe7 (14...b4 15.Rfc1+=) 15.e5+- Nd5 16.Qb5 N7b6 17.Qd3 Nf4 18.Qf3 Qg5 19.Kh1 (19.Rab1 Qg4 20.Qg4 Bg4+=) 19...Be6= 20.c4 h5 (20...Rc8 21.d5 Nbd5 22.Qg3= (22.cd5?? Bd5 23.Qg3 Bg2 24.Kg1 Ne2 25.Kg2 Ng3 26.hg3 h5-+)) 21.Qg3 (21.g3!? Ng6 22.Qe2+-) 21...Qh6= 22.h4 (22.Qb3!? Qg6 23.Qg3=) 22...Nc4=+ (22...Bc4?! 23.Nc4 Nc4 24.Rfc1=) 23.Qg5 (23.Nc6 a5 24.Rfc1 Re8-/+) 23...Qg5-/+ 24.hg5 Nd2 25.Rfe1 (better 25.Rfc1!?-/+) 25...Bd5-+ 26.f3 Nd3?? (better 26...Rb8 27.Rec1 Rb2 28.Rc8 Kh7-+) 27.Re3= Nb2 28.Re2 (28.Rc3 Ndc4=) 28...Nbc4=+ 29.Nc4 Nc4 30.Rb1? (better 30.Ra6!?=) 30...a5 (30...Kh7 31.Kh2-+) 31.Rb5-/+ Rd8 32.Ra2 (32.Rc5!? a4 33.Rc2-/+) 32...Be6 (better 32...Kh7-+) 33.Ra1 (better 33.d5 Bd5 34.Rc5-+) 33...Rd4 34.Kh2 (34.Rc5 Kh7-+) 34...h4 (34...Kh7!? 35.Rc5-+) 35.Rc5 (35.Ra4 Rd2 36.Kg1 Kh7-+) 35...g6 (better 35...Kh7!?-+) 36.Ra4 Kg7 37.Rca5 (37.Kg1!?-+) 37...Rd2 38.Ra2 Nb2 39.Ra1 (39.Ra6 Ba2 40.Ra2 Kf8-+) 39...h3 40.Rg1 Nc4 41.Ra4 (41.Ra6 hg2 42.Rg2 Rd3-+) 41...Ne5 (41...Ne3!? 42.Re4 Ng2 43.Kg3-+) 42.Kg3 Rd3 43.Re4 (43.Kf4 Nc4 44.gh3 Bd5-+) 43...Nc4 (43...Nc6!? 44.gh3 Nd4 45.Rf1-+) 44.gh3 Nd2 (44...Nd6!? 45.Ree1 Bd5-+) 45.Rf4-/+ Bd5 46.Ra1?? (better 46.Kf2-/+) 46...Nf3-+ 47.Rf3 (47.Kf2 Ng5 48.Rb4 Rf3 49.Ke2 Rh3-+) 47...Rf3 48.Kh2 (48.Kh4 Rd3-+) 48…Be6 0–1. Demir,M (1830) – Kamer,Kayra (2160), Turkish Cup (2), 2017. (=1.e4 c5 2.b4 e5 3.Nf3 cb4)

4.a3 b3 5.c4 (5.cb3 Nc6+=) 5...Nc6 (5...Qb6 6.Nc3 (6.Ne5? b2 7.Bb2 Qb2-+) 6...Bc5 7.d4=+) 6.Bb2 (6.Qb3 Nf6 7.Nc3 Bc5=) 6...Bc5 7.Qb3 (7.Be5? Ne5 8.Ne5 Bd4-+) 7...d6 8.Nc3 Nf6 9.Bd3 (9.Be2 0-0=) 9...Bg4 10.Nd5 Bf3 11.gf3 (11.Qb7 Nd4 12.Bd4 Bd4 13.Nc7 Kf8 14.Na8 Bg2=+ (worse 14...Ba1 15.gf3 Bd4 16.Nc7+=)) 11...0-0 12.Rg1 (12.Qb7 Nd5 13.cd5 Rb8-/+) 12...Nd5-/+ 13.cd5 Nd4 (13...Na5 14.Qc2 f5-/+) 14.Qd1 (14.Bd4 Bd4 15.Rc1 Rc8-/+) 14...Qf6 (14...Qh4 15.Rg2 Qh3 16.Bf1 Nf3 17.Ke2-+) 15.Rg3 (15.Bd4 Bd4 16.Rb1 Rab8-/+) 15...h5 (15...Qh4!? 16.Bf1-+) 16.Rb1 b6 17.Bd4 Bd4 18.Ke2 g6 (18...Rfc8 19.Qf1 Kh7 20.Ke1-/+) 19.Qg1 (19.Ba6 Rfe8=+) 19...Kh7 20.Ba6 Qf4 21.Rh3 Bc5 22.Qg3 Qh6 23.Rg1 (23.a4 f5 24.d3 g5=+) 23...Rab8 (23...f5 24.d4 Bd4 25.ef5 Rf5 26.Bd3=) 24.a4=+ Rbe8 25.Rh4 Rg8 (25...f5 26.ef5 Rf5 27.Bd3=) 26.Qh3 Re7 27.Bb5 Bb4 (better 27...Bd4=+) 28.Bd7?? (28.f4 Rf8 29.Rg5+-) 28...Qd2-+ (28...Bd2?! 29.Bf5 Kh8 30.Qg3-+) 29.Kf1 Qc1 (better 29...Bc5 30.Rh5 Kg7-+) 30.Kg2-/+ Qh6 31.Bf5?? (better 31.Kf1-/+) 31...gf5-+ 32.Kh1 Rg1 33.Kg1 Qc1 34.Kg2 Kg7 (better 34...Qg5 35.Qg3 Kh6-+) 35.Rh5= Re8?? (better 35...Qf4 36.Rh7 Kg8 37.Rh8 Kg7 38.Rh7 Kf8 39.Rh8 Kg7 40.Rh7=) 36.Qg4?? (better 36.Rh7 Kg8 37.Rh8 Kg7 38.Re8 Qg5 39.Qg3+-) 36…fg4-+ (36...fg4 37.fg4 Qf4-+) 0-1. Shirazi,K (2345) - Golubka,P (2450), Titled Tuesday, 2021. (=1.e4 c5 2.b4 e5 3.Nf3)

4.a3 f6 5.Bc4 Nc6 (5...Qc7 6.d3=) 6.0-0 (6.ab4 Nb4 7.d4 d5 8.ed5 e4=+) 6...Bc5 (6...ba3 7.Nc3=) 7.ab4+= Nb4 (7...Bb4 8.c3 Bf8 9.d4+=) 8.c3 (8.Ne5!? d5 9.Qh5 Ke7 10.Bd5 fe5 11.Bg8+- (worse 11.Qe5 Kf8=+)) 8...Nc6+= 9.d4 ed4 10.cd4 Bb6 11.Nc3 Nge7 12.Ba3 d6 13.Nb5 Bc7 14.Nc7 (14.Qa4 a6 15.Nc7 Qc7+-) 14...Qc7+= 15.Rc1 Bd7 (15...Qd7 16.Re1+=) 16.Ba2 (16.Re1+=) 16...Qa5 (16...Qb8!?+=) 17.Qb3+- 0-0-0?? (better 17...f5 18.Bd6 fe4+-) 18.Bd6+- Qb6 (18...Rhe8 19.d5+-) 19.Qa3 Ng6 20.d5 Nge5 (20...Rde8 21.Rc4 a5 22.dc6 Bc6 23.Rd1+-) 21.Ne5 fe5 22.dc6 Bc6 23.Be6 Rd7 24.Bd7 Kd7 25.Rfd1 Ke6 26.Qh3 Kf6 (26...Kf7 27.Qf5 Ke8 28.Qe6 Kd8 29.Be5 Qd4 30.Rd4 Bd5 31.Rd5) 27.Qf5 1–0. Janek – Orpaki, internet free game, 2017.

4.Bc4 Nc6 5.0-0 Bc5 6.Bb2 A) 6...Qc7 7.Bb5 (7.a3 Nf6 8.ab4 Bb4 9.c3 Be7 10.d3 0-0 11.Nbd2 d6 12.d4 Bg4+= –0.69; 7.Qe2 d6 8.a3 Bg4 9.h3 Bh5 10.ab4 Bb4 11.c3 Bc5 12.Na3 a6+= –0.63) 7...Nge7 8.a3 ba3 9.Ba3 Ba3 10.Na3 f5 11.ef5 0-0 12.d4 ed4+= –0.56; B) 6...d6 B1) 7.a3 ba3 (7...Qb6 8.d3 Nf6 9.ab4 Nb4 10.Ba3 0-0 11.Bb4 Qb4 12.c3 Qb6+= –0.44; 7...Nf6 8.ab4 Bb4 9.d4 0-0 10.c3 Ba5 11.d5 Ne7 12.Bd3 Bg4-/+ –0.72; 7...Bg4 8.ab4 Bb4 9.c3 Ba5 10.d4 Bb6 11.d5 Nce7 12.Ba3 Nf6+= –0.44) 8.Na3 Bg4 9.h3 Bh5 10.g4 Bg6 11.d4 ed4 12.Nd4 Nf6-/+ –1.00; B2) 7.c3 bc3 (7...Qb6 8.d4 bc3 9.Nc3 Nd4 10.Nd5 Qb2 11.Nc7 Ke7 12.Na8 Nf6+= –0.47) 8.Nc3 Nf6 9.Rc1 0-0 10.Bd5 Bg4 11.h3 Bh5 12.Bc4 Rc8-/+ –1.25; B3) 7.d4 ed4 8.Nd4 Qf6 9.Bb5 Bd7 10.Bc6 bc6 11.c3 bc3 12.Bc3 Qg6+=.

4.Bc4 Nc6 5.0-0 Bc5 6.d4 Bd4 7.Nd4 Nd4 (7...ed4 8.Bb2 Qf6 9.a3 ba3 10.Na3 Qf4 11.Nb5 Nge7 12.g3 Qe5+/- 1.06) 8.f4 (8.Be3 Nc6+= (8...Nf6 9.Bd4 Qc7 10.Re1 0-0 11.Bb2 Qc4 12.Be5 Ne8= –0.16) 9.a3 Qe7 10.ab4 Qb4 11.Qd3 Nf6 12.Nc3 a6+= –0.38) 8...Ne6 (8...Nc6 9.Be3 Qh4 10.Qd5 Qe7 11.Bc5 Qe6 12.Qd3 Qf6= –0.22) 9.Bb2 (9.fe5 Qc7 10.Qd5 Ne7 11.Qb5 Nc6 12.Be6 de6-/+ –1.09) 9...Nf6 (9...Qc7 10.Be6 Qc5 (10...Qb6 11.Kh1 de6 12.Be5 Nf6= –0.19) 11.Kh1 de6 12.Be5= Nf6+= –0.28) 10.Be5 Qb6 (10...Ne4 11.f5 Qb6 12.Kh1 N6g5+= –0.34) 11.Kh1 Ne4 12.f5 Nf2 (12...N6g5 13.Bg7 Rg8 14.Bd4=) 13.Rf2 Qf2 14.fe6 fe6 (14...de6?? 15.Bb5 Bd7 16.Qd7 Kf8 17.Nd2+-) 15.Nd2 (15.Bg7?? Rg8 16.Be2 Rg7 17.Bh5 Kd8-+) 15...0-0 16.Ne4 (16.Bd3 Qh4=) 16...Qf5 17.Qd4 d5 18.Ng3 (18.Nd6 Qc2 19.Bd5 Qf2 (19...ed5? 20.Qd5 Be6 21.Qe6 Kh8 22.Nf7 Rf7 23.Qf7+-) 20.Nc8 Qf1 21.Qg1 Qg1 22.Kg1 ed5-/+) 18...Qf2 (18...Qg5!? 19.Bd3 a5+=) 19.Qg4= g6 20.Bd3 Rf5?? (better is 20...Qe3 21.Bd6 Rf2=) 21.Nf5+- ef5 22.Qb4 (22.Qg5 Qc5 23.Qf6 Qf8 24.Qh8 Kf7 25.Qh7 Qg7 26.Qg7 Ke8 27.Bd6 b3 28.Qe7) 22...Kf7 23.Qd6 (23.c4 Qh4+-) 23...Qb6 24.Qd5 Be6 25.Qd4 (25.Qf3!? Kg8+-) 25...Qd4 26.Bd4 b6 27.Kg1 1–0. Yakivchik,M (2145) – Shliahtich,G (2250), ch–UKR w, Alushta UKR, 2002. (=1.e4 c5 2.b4 e5 3.Nf3 cb4)

4.Bc4 Nc6 5.0-0 h6 6.Bb2 Qc7 A) 7.Qe2 A1) 7...Bd6 8.a3 Nf6 9.ab4 Bb4 10.Nc3 Bc3 11.Bc3 0-0 12.h3 d6 13.Rfb1; A2) 7...Be7 8.a3 Nf6 9.ab4 Bb4 10.Nc3 Bc3 11.Bc3 0-0 12.Qd3 d6 13.Nh4; A3) 7...Nge7 8.a3 (8.Qd3 d6 9.a3 Be6 10.Be6 fe6 11.Qb3 d5 12.Re1 Qd6 13.ab4; 8.g3 g5 9.d4 Bg7 10.Nbd2 Nd4 11.Nd4 ed4 12.Nb3 Nc6 13.Rad1) 8...Ng6 9.g3 Be7 10.ab4 Nb4 11.Nc3 0-0 12.Nb5 Qb8 13.Bb3; A4) 7...Nf6 8.a3 (8.h3 Bd6 9.a3 Nh5 10.ab4 Nf4 11.Qe3 Nb4 12.Qb3 0-0 13.Nc3) 8...a5 9.ab4 Bb4 10.Nc3 Bc3 11.Bc3 0-0 12.h3 d6 13.Ra3; B) 7.a3 Nf6 8.Qe2 (8.d3 a6 9.ab4 Bb4 10.Nc3 d6 11.Nd5 Nd5 12.Bd5 0-0 13.d4; 8.h3 Bd6 9.ab4 Bb4 10.Na3 a6 11.c3 Be7 12.d4 0-0 13.Bd3 ) 8...a5 9.g3 a4 10.Kg2 Ra5 11.ab4 Bb4 12.Na3 0-0 13.Nb5; C) 7.d4 ed4 8.Nd4 (8.Re1 Bc5 9.Qd3 Nge7 10.Nbd2 0-0 11.Nd4 Bd4 12.Bd4 Nd4 13.Qd4; 8.Nbd2 Nf6 9.Re1 Ng4 10.e5 Be7 11.Nd4 d5 12.ed6 Qd6 13.g3) 8...Nd4 9.Qd4 Nf6 10.e5 Bc5 11.Qd3 Ng4 12.Qe2 h5 13.h3.

4.Bc4 Nc6 5.0-0 h6 6.Bb2 d6 7.a3 A) 7...Nf6 8.ab4 (8.Qe2 Qb6 9.ab4 Nb4 10.Nc3 Nc2 11.Na4 Qd8 12.Rac1 Bd7 13.Nc3) 8...Nb4 9.d4 Be6 10.Bb5 Bd7 11.Bd7 Qd7 12.Bc3 Nc6 13.d5; B) 7...ba3 8.Na3 (8.Bc3 Nf6 9.Qe2 Be7 10.Na3 0-0 11.Rfb1 a6 12.Bd5 Qc7 13.Nb5) 8...Nf6 9.Qe2 Be7 10.d4 ed4 11.Nb5 0-0 12.Nbd4 Bd7 13.h3; C) 7...Be6 8.Be6 fe6 9.ab4 Nb4 10.d4 Nf6 11.Qe2 ed4 12.Nd4 Qd7 13.f4; D) 7...Be7 8.ab4 Nf6 9.b5 Na5 10.Bd3 0-0 11.Bc3 b6 12.Ba5 ba5 13.Nc3; E) 7...Qb6 8.ab4 (8.d3 Nf6 9.ab4 Be7 10.Nc3 Nb4 11.Qd2 a5 12.Ba3 0-0 13.Na4) 8...Qb4 9.Bb3 Nf6 10.Nc3 Bd7 11.Qe2 Rc8 12.Rfb1 Qc5 13.Nd5.

4.Bc4 Nc6 5.0-0 h6 6.Bb2 d6 7.d4 f6 8.Qd3 Bg4 (8...Nge7 9.Nbd2 Nd4 10.Nd4 ed4 11.Nb3 Nc6 12.Nd4 Ne5 13.Qe2) 9.Nbd2 Nge7 (9...Na5 10.h3 Bd7 11.Bb5 Ne7 12.a3 Ng6 13.Bd7) 10.h3 Bd7 (10...Bh5 11.Be6 Ng6 12.g3 ed4 13.Qb5) 11.Qb3 Qb6 (11...Qc7 12.Bf7 Kd8 13.a3) 12.Bf7 Kd8 13.Nc4 Qc7 14.Rad1 a5? (better is 14...b5 15.Nd6 Na5 16.Qb4 Nec6 17.Nb5 Nb4 18.Nc7 Kc7 19.de5 Be7+/-) 15.de5+- de5 16.Be6 a4 (16...Nb8 17.Be5! fe5 18.Nfe5 Nc8 19.Nd7 Bd6 20.Nb8 b5 21.Nd6 Nd6+-) 17.Qe3 Nb8 18.Nb6 Nf5 (18...Ra6 19.Nd7 Ke8+-) 19.Bf5 (19.Na8 Ne3 20.Nc7 Nd1 21.Rd1 Kc7-/+; worse is 19.ef5 Bc5 20.Na8 Be3 21.Nc7 Kc7 22.fe3 Be6 23.fe6 Re8+-) 19...Bc5 20.Na8 Be3 21.Nc7 (21.fe3 Qa5 22.Bd7 Nd7 23.Ne5 fe5+-) 21...Kc7 22.fe3 Bf5 23.ef5 a3 24.Ba1 Nc6 25.Rf2 b5 26.Rfd2 Rd8 (26...Kb6 27.Rd7 Rg8 28.R1d6+-) 27.Rd8 Nd8 28.Ne5! fe5 29.Be5 (29.Be5 Kc8 30.Bg7+-) 1–0. usingprogram – kiticr, internet, 2011. (=1.e4 c5 2.b4 e5 3.Nf3 cb4)

4.Ne5 Nc6 5.Nf3 (5.Nc6 dc6 6.Bb2 Qg5=) 5...d6 Secures e5 (5...d5 6.ed5 Qd5 7.Qe2 Be6 8.c4+=) 6.d4= White has a new backward pawn: c2 6...Be7 (6...Qe7 7.Bd3=) 7.a3 Nf6 (7...d5 8.ed5 Qd5 9.c4 Qe6 10.Qe2=) 8.ab4 (8.d5 Ne5 9.ab4 Ne4=) 8...Nb4 White has a very active position. Black has a new passed pawn: a7 (8...Ne4 9.Nfd2 Nd2 10.Bd2+=) 9.c3 White threatens to win material: c3xb4 9...Nc6 10.Bd3 (10.d5 Nb8+=) 10...0-0 (10...Bg4 11.Nbd2+=) 11.h3 Consolidates g4 11...d5 (11...h6 12.Ra2+=) 12.e5 White gains space 12...Ne4 13.0-0 (better is 13.Nfd2 Ng5 14.Nf1+/-) 13...g5? (better is 13...Bf5= would keep Black in the game) 14.Be4+- de4 15.Nfd2 Qd5 16.Qe2 Bf5 17.Re1 Nd4 18.cd4 Qd4 19.Ra5 b6 20.Nb3 Qb4?? another step towards the grave 21.Rb5+- Qa4 22.Nc3 Qa6 23.Nd5 Qb7 24.Qh5 Bg6 25.Qh6 f6 26.ef6 Bf6 27.Nf6 Rf6 28.Qg5 Qf7 29.Be3 Rd8 30.Bd4 Rd4 31.Nd4 Rf2 32.Qd8 Kg7 33.Ne6! Deflection: f2 33...Qe6 34.Kf2 Qa2 35.Re2 Qf7 36.Kg1 Qc4 37.Rf2! Mate threat 37...Qc1 38.Kh2 Bf7 39.Rg5 (39.Rg5 Qg5 40.Qg5 Kf8 41.Qd8 Kg7 42.Qf6 Kg8 43.Qf7 Kh8 44.Qf8; 39.Qf6 Kg8 40.Qf7 Kh8 41.Qf8) 1–0. Koltanyi,Imre (2160) – Szemzo,Lajos (2030), Salgotarjan Balazs Memorial op, 2002. (=1.e4 c5 2.b4 e5 3.Nf3 cb4)

4.Ne5 Qe7 5.Nf3 Qe4 6.Qe2 -/+.

3.Nf3 Nc6

4.Bb2 cb4 5.a3 d6 (5...Qc7 6.Bc4=+) 6.ab4= Nf6 (6...Nb4!? 7.d4 f5 8.de5 fe4=) 7.b5+= Ne7 8.Nc3 Ng6 9.g3 (9.d4 Qc7+=) 9...Be7= 10.Bg2 0-0 11.0-0 b6 (11...Be6 12.d4=) 12.d4 Bb7 13.Re1 a5 14.de5 (14.Ra4 Qc7+=) 14...de5= 15.Qd8 Bd8 16.Nd2 Rc8 17.Rac1 Bc7 18.Na4 Ba8 (18...Rfd8 19.Nc4 Rb8 20.Bc3=) 19.Nc4+= Rb8 20.Rcd1 Rfe8 21.f3 Nf8 (21...Bc6 22.bc6 b5 23.Ne5 Be5 24.Be5 Ne5 25.f4 Nc6 26.e5+=) 22.Bc1 N8d7 23.Be3 Nc5 (23...Bb7!?+/-) 24.Bc5 bc5 25.b6 Bd8 26.Rb1 Re7 (26...Bc6 27.Nc5 a4 28.Kf2+/-) 27.Na5 Nd7 (27...g6 28.Bh3 Nd7 29.Nc4+-) 28.Red1 Kf8 (28...f5 29.Rd6+-) 29.Nc4 (better 29.Bh3!? Nb6 30.Nc4+- (30.Nc5?! Bc7+-)) 29...Bc6 30.Nc3 f6 (30...Bb7 31.Bh3 Ba6 32.Nd5 (32.Rd7?! Rd7 33.Bd7 Bc4+-) 32...Bc4 33.Ne7 Rb6 34.Nc8 (34.Bd7?! Ke7 35.Rb6 Bb6+-) 34...Rb1 35.Rb1+-) 31.Rb2 (31.Rd6 Bb7 32.Bh3 Ba6+-) 31...Nb6 32.Rd8! Rd8 33.Rb6 (33.Nb6?! Rb7 34.Bf1 Rdb8+/-) 33...Be8 34.Nd5 Ra7 35.Rb1 (35.f4 ef4 36.gf4 Ra2+-) 35...Bf7 36.Nce3 Ra3 37.Rb5 Rc8 38.Kf2 Ke8? (38...Ra7 39.f4+-) 39.c4 (better 39.Bh3!? Rd8 40.Rc5+-) 39...Ra2 40.Kg1 Ra1 41.Bf1 Ra2 (41...Be6 42.f4+-) 42.Rb7 (42.Nf5 Kf8+-) 42...Kf8 (better 42...Rd8+-) 43.Nb6 Rd8 44.Nd7 Ke8 45.Nc5 Rc8 46.Nb3 (46.Nf5 Rc5 47.Nd6 Kf8 48.Rf7 Kg8+-) 46...Rb2 (46...Kf8 47.Nd5+-) 47.Nf5 Rd8 48.Nc5 (48.Ng7 Kf8 49.Nf5 Bg6+-) 48...Rb7 49.Nb7 (49.Ng7?! Kf8 50.Nb7 Rb8+=) 49...Rd7 (49...Rd1 50.Kf2+-) 50.Nbd6 (50.Ng7!? Kf8 51.Nc5 Rd2+-) 50...Kf8 51.Nf7 Kf7 52.Ne3 Rd2 (52...Rb7 53.Kf2+-) 53.c5 1-0. Goldner,John (1680) - Yan,Alex Jikai (1645), Pere Noel Open, lichess.org, 2019. (=1.e4 c5 2.b4 e5 3.Nf3)

4.Bb2 cb4 5.Bb5 d6 6.d4 Bd7 7.0-0 ed4 8.Nd4 Nf6 9.Nf5 (9.Re1 Be7=) 9...Bf5 10.ef5 Be7 11.a3 0-0 12.Bc6 bc6 13.ab4 d5 14.g4? (14.Ra6 Qc8 15.Bf6 Bf6+=) 14...Rb8 (14...Bb4!? 15.Ra6-+) 15.c3-/+ Qc7 16.g5 Ne4 17.f4 Qd7 18.Nd2 Qf5 19.Ne4 de4 20.Ra7? (better is 20.Kh1-+) 20…Bc5 (20...Bc5 21.bc5 Rbd8-+ (21...Rb2?! 22.Qd7 Qc5 23.Qd4-+; 21...Qc5?! 22.Qd4 Qd4 23.cd4 Rb2 24.Re1=)) 0–1. Macicek,Jan (2155) – Sikora Lerch,Jan (2310), CZE–chT2f, 2007. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.Bb2 cb4 5.Bb5 d6 6.d4= Bg4 7.de5 de5=+ 8.Be5?? Qd1-+ 9.Kd1 Bf3 10.gf3 Rd8 11.Ke2=+ Bc5?? 12.Rg1 f6= 13.Bc7 Rd7=+ 14.Bf4?? Nge7 15.Bc4?? Nd4-+ 16.Kf1 Nc2 17.Rg7 Na1 18.Ke2 f5 19.e5 Nc2 20.e6 Nd4 21.Kf1 Rd8 22.Nd2 b5 23.Kg2 bc4 24.Nc4 Ne6 (24...Ne6 25.Be3 Be3 26.Re7 Ke7 27.fe3 Rhg8 28.Kf2 Rc8-+) 0–1. clavecinist (2090) – paolog (2105), net–chess.com, 2008.

4.Bb2 b6 5.Bc4 (worse 5.Ne5 Ne5 6.Be5 Qe7=; worse 5.Be5 Ne5 6.Ne5 Qe7=+) 5...h6? (5...Qf6!? 6.b5 Nd4+=) 6.Ne5 (better 6.b5!? Nb4 7.Ne5 d5 8.ed5 Bd6+-) 6...Ne5+- 7.Be5 Nf6 (7...Qe7 8.f4 d6 9.Bd5+-) 8.Qf3 (8.bc5 Bc5 9.d4 Bb4 10.c3+-) 8...Be7? (better 8...cb4!? 9.Bf6 Qf6 10.Qf6 gf6+-) 9.bc5 (9.Bf6 gf6 10.Qb3 Rf8+-) 9...bc5 10.Bf6 Bf6 (10...gf6 11.Qb3 Qc7+-) 11.e5 Qe7 (11...Ba6 12.Ba6 Be5 13.Nc3+-) 12.0-0 (12.Qa8 Qe5 13.Kd1 0-0+-) 12...Be5 13.Qa8 0-0 14.Nc3 d6 (14...Qd6+-) 15.Nd5 (better 15.Qe4+-) 15...Qh4 16.g3 Qc4 17.Ne7 (17.c3 Qa6+-) 17...Kh7 18.Nc8 (better 18.Rab1 Qe6 19.Nc8 Rc8 20.Qa7+-) 18...Ba1+= 19.Ra1 Qa6 (19...Qe6 20.Qa7 Rc8 21.a4+=) 20.Qe4 (better 20.Qa7 Qc8 21.Qe7+-) 20...g6?? (better 20...f5 21.Qf4 Qc8 22.Qd6 Rd8+=) 21.Ne7+- Re8 22.Qh4 (22.c4 Qa5+-) 22...Qe2 (22...Qb7 23.Re1 g5 24.Qe4 Qe4 25.Re4+-) 23.Nd5 Kg7 (23...Re6 24.Qf4 Kg7+-) 24.Qf6 Kh7 (24...Kg8 25.Qd6 Kg7+-) 25.Qf7 Kh8 26.Nf6 Qe7 27.Qg6 (27.Ne8 Qf7 28.Re1 Qa2 29.Nd6 Qc2 30.Re8 Kg7 31.Re7 Kf6 32.Ra7 Ke6-/+; 27.Qe8 Qe8 28.Ne8 d5+-) 27...Rf8 (27...Qe1 28.Re1 Re1 29.Kg2 Rg1 30.Kg1 d5 31.Qh6) 28.Qh6 (28.Qh6 Qh7 29.Qh7) 1–0. Oakley,Johnny – Orden,Jorge, FICGS, 2007. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.Bb2 Nd4 5.Bc4 Nf3 (5...Qc7 6.bc5 Bc5 7.0-0+=) 6.Qf3+/- (6.gf3?! Qg5=) 6...Qf6 7.Be5 Qf3 (7...Qe5 8.Qf7 Double attack (8.Qf5 Decoy)) 8.gf3 cb4 9.a3 Nf6 (9...Ne7 10.Bb2 Nc6 11.Rg1+=) 10.Rg1 ba3 (10...d5 11.ed5 Bf5 12.Kd1 ba3 13.d6+/-) 11.Na3 d6 (better 11...Ba3!? 12.Ra3 Kf8+/-) 12.Bf6+- gf6 13.Nb5 Kd8 14.Na7 Rb8 (14...Ke8 15.Bd5+-) 15.Bf7 Bd7 16.Bd5 Bh6 17.Ke2 Bf4 18.h4 Re8 19.Rgb1 (19.d4 f5+-) 19...Re7 20.Rb7 (20.d4 Kc7+-) 20...Rb7 21.Bb7 Rg7 (21...Re5 22.Rg1+-) 22.Bd5 Rg2 23.c4 (23.Rb1 h6+-) 23...Bg3 24.Rf1 Bh4 25.Nb5 Bb5 (25...Rh2 26.Nd6 Bh3 27.Rb1 Bf2 28.Nf7 Kc8 29.Kd3+-) 26.cb5 Kc7 27.f4 (27.Rh1 Bg3 28.Rh3 Rf2 29.Ke3 Rg2+-) 27...Kb6 28.Kf3 Rh2 29.Bc6 h5 30.d4 Rh3 (30...Kc7+-) 31.Kg2 Rd3 32.Rh1 1-0. Kanakaris,G (2400) - Polok,K (2245), Titled Tuesday, 2021. (=1.e4 c5 2.b4 e5 3.Nf3)

4.Bb2 Nf6 5.Bc4 Ne4 6.Qe2 d5 7.d3 dc4-/+ 8.Qe4 f6 9.Qc4 Qb6 10.b5 Nd4 11.Nd4 cd4 12.a4 a5 13.Qd5 Be6 14.Qe4 Rc8 15.c3 dc3-+ 16.Nc3 Bb4 17.Rc1 Qd4 18.Qb7 0-0 19.Qa6 Bb3 20.0-0 Bc3 21.b6 Ra8 22.Qa8? Ra8 23.b7 Rb8 24.Rc3 Qd7 25.Rb3 Qa4 26.Rb6 Qd7 27.Bc3 Rb7 28.Rb7 Qb7 29.Ba5 Qd5 30.Bb6 Qd3 31.g3 h5 32.h4 g5 33.hg5 fg5 34.Be3 Qf5 35.Ra1 Kf7 36.Ra7 Ke6 37.Ra6 Kd5 38.Ra5 Ke4 39.Ra4 Kf3 40.Ra3 Qb1 41.Kh2 e4 42.Ra5 g4 ½–½. Bressanelli,Roberto (2115) – Barberi,Alessandro (2220), Corsico op (1), 1996.

4.b5 Nb8 5.Ne5 d6 6.Nf3 Bg4 7.Be2 Nd7 8.Bb2 Ngf6 9.d3 Be7 10.0-0 0-0 11.Nh4 Be2 12.Qe2 Qb6 13.Nf5 Rfe8 14.c4 (worse is 14.Ne7 Re7 15.c4 d5+/-) 14...Ne5 15.f4 Ned7 16.g4 Nf8? (16...g6 17.Ne7 Re7+-) 17.g5 (17.Ne7?! Re7 18.Bf6 gf6+-) 17...d5 (17...N6d7 18.Ng7 Reb8+-) 18.Ne7 Re7 19.gf6 gf6 20.Nc3 Rd7 (20...d4 21.Nd5 Qd8 22.Ne7 Qe7 23.Qg4 Kh8 24.Kh1+-) 21.Nd5 Rd6 (21...Rd5 22.ed5 Ng6+-) 22.Nb6 ab6 23.Qg4 Kh8 24.e5 (24.e5 Rd3 25.e6+-) 1–0. Rayo Sierra,Cayetano – Irazola Mendikute,Luciano, Mondragon Arrasate Hiria op 3rd, 2003. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.b5 Nge7?? 5.bc6+- Nc6 (5...dc6 6.Bb2+-) 6.Bc4 d6 7.Nc3 Bg4 (7...Be7 8.Rb1+-) 8.Rb1 (8.Nd5 Be7+-) 8...Bc8 (8...Qd7 9.Nd5+-) 9.Nd5 Rb8 10.c3 Bd7 (10...Be7 11.0-0+-) 11.d4 ed4 (11...Be7 12.dc5 dc5 13.0-0+-) 12.cd4 Nb4 (12...Bg4 13.Be3 Be7+-) 13.Nb4 cb4 14.0-0 (14.Ng5 f6 15.Bf7 Ke7+-) 14...h6 (14...Be7+-) 15.Qb3 Qe7 16.Re1 White plans e5 16...a5 (16...b5 17.Qb4 g5 18.h3+-) 17.e5 Kd8 (17...d5 18.Bd5 a4 19.Qd3+-) 18.Bf7 d5 (18...Rc8 19.e6 Bc6 20.Be3 Bf3 21.gf3+-) 19.Qd5 Kc8 (19...Kc7 20.e6 Bc6 21.Qa5 b6 22.Qa7 Kc8 23.Qa6 Qb7 24.Qc4+-) 20.Bf4 g5 21.Rbc1 Kd8 22.e6 gf4 23.ed7 Qd7 (23...Ra8 24.Qb7 Qe1 25.Re1 Be7 26.Ne5 Rc8 27.dc8Q) 24.Re8 1–0. bulent_2010 – MorphiusDragon, ChessWorld.net, 2018. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.c3 a6 5.Bc4 (5.bc5 Bc5 6.d4 ed4 7.cd4 Be7+=) 5...Be7 (better is 5...b5 6.Bd5 Nf6=) 6.Ng1?? (better is 6.bc5 Nf6 7.d4 Ne4 8.Bd5+=) 6...Nf6-+ 7.d3 h6 (7...b5 8.Bb3 0-0 9.bc5 Bc5 10.Nf3-/+) 8.Ne2 d5 (8...cb4!? 9.0-0-+) 9.ed5-/+ Nd5 10.Nd2? (10.bc5 Bc5 11.Nd2 b5-/+) 10...Bg4 (better is 10...cb4 11.0-0 b5 (11...bc3?! 12.Ne4-+) 12.Bd5 Qd5 13.cb4 Nb4-+) 11.0-0?? (better is 11.Qb3 Be6 12.bc5-/+) 11...Nc3!-+ 12.f3 (12.Nc3 Bd1 Pinning (12...Bd1 Deflection)) 12...Nd1 13.Rd1 (13.fg4 Ne3 14.Bf7 Kd7-+) 13...Bh5 (better is 13...Be6 14.bc5 Nd4 15.Ng3-+) 14.Rf1 (14.bc5 Bc5 15.Kh1 b5-+) 14...b5 15.Bb3 Qd3 16.Re1 Bh4 17.g3 Qe3 (better is 17...Be7 18.Bd1 c4 19.Ne4 Bb4 20.Nf2-+) 18.Kf1 Nb4 19.Ne4 Qf3 20.Kg1 Qe4 21.Nc3 Qe1 22.Kg2 Qc3 23.Rb1 Bg6 24.Bb2 Qd2 25.Kh3 (25.Kg1 Be4 26.Bf7 Ke7 27.Kf1 Nd3 28.gh4 Qf2) 25...Bf5 26.g4 Qe3 27.Kg2 (27.Kh4 g5 28.Kh5 Qh3) 27...Qf2 (27...Be4 28.Kf1 Qf2) 28.Kh1 (28.Kh3 Qf3 29.Kh4 Qg4) 28...Be4 0–1. Elboeva,Polina – Schegoleva,Tamara, Novokuznetsk RUS, SFO Ch U15 (g), 2014. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.c3 cb4 5.d4 ed4 6.cd4+=.

4.Bc4 cb4 5.0-0 Be7 6.a3 ba3 7.d4 d6 8.Na3 Nf6 9.Nb5 0-0 10.d5 Na5 11.Bd3 a6 12.Na3 b6 13.h3 (13.Qe2 Ra7+=) 13...Nd7 14.Qe2 Nc5 15.Be3 Nab7 16.Rfb1 f5 (16...Nd3?! 17.cd3 Nc5 18.Nc4=) 17.ef5 Bf5 18.Bf5 Rf5 19.Nc4 b5 20.Bc5 Nc5 (20...dc5?! 21.Nce5 Bf6 22.Nc6=) 21.Na5 Bf6 22.Nc6 Qe8 23.c4 (23.c3!?-/+) 23...bc4-+ 24.Qc4 h6 (24...Qf7 25.Qg4 Rf4 26.Qg3 Qd5 27.Nb4 Rb4 28.Rb4-+) 25.Rb6 (better is 25.Ra3-/+) 25...Qg6?? (better is 25...Qf7-+) 26.Nh4= Qg5 (better is 26...Rf4!? 27.Qf4 ef4 28.Ng6 Ba1 29.Nf4 Kf7=) 27.Nf5+/- Qf5 28.Qg4 Qc2 29.Rab1 a5 30.R6b2 Qd3 31.Kh2 a4 32.Rb8+/- Rb8 33.Rb8 Kh7 34.Nb4 Qe4= 35.Qe4 Ne4 36.Ra8 Nc3 37.Ra6 e4 38.Kg1 Bd4 39.Kf1 Bc5 40.Nc2 Kg6 41.Ne3 Kf6 42.Nc4 Ke7 43.Ke1 Bb4 44.Kf1 Bc5 45.g4 Kd7 46.Nb6 Bb6 47.Rb6 Nd5 48.Ra6 Nc7 49.Ra4+= d5 50.Ke2 Kd6 51.Ke3 Ne6 52.f4 ef3 53.Kf3 Ke5 54.h4 Nd4 55.Ke3 Nc6 56.Ra6 d4 57.Kf3 Kd5 58.Kf4 d3 59.Ke3 Ne5 60.g5 hg5 61.h5 Nc6 62.Ra4+/- Ke5 63.Rc4 Ne7 64.Rc5 Kf6 65.Kd3 Nf5 66.Rc6 Ke5 67.Rg6+- Ng3 68.Rg7 Kf6 69.Rg6 Kf5= ½–½. Gietl,Thomas (2235) – Gal,Jozsef (2270), Hajduboszormeny, 1996. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

4.Bc4 cb4 5.a3 ba3 6.0-0 Be7 7.Na3 Nf6 8.d4 d6 9.Bb2 ed4 (9...Ne4 10.de5 de5 11.Qe2=+) 10.Nd4 (10.Re1 Bg4=+) 10...0-0 (10...Ne4 11.Nc6 bc6 12.Re1=+) 11.Re1 a6 12.Qd2 (12.Bb3 Re8=+) 12...Qc7 (12...d5 13.ed5 Nd5 14.Rad1=+) 13.Nc6 (13.Bd5 Nd5 14.ed5 Ne5=+) 13...bc6 14.e5 (14.Qd3 a5=+) 14...de5 (14...Ng4 15.ed6 Qd6 16.Qd6 Bd6 17.h3-/+) 15.Be5=+ Qd7 16.Bd3 Nd5 (16...Rd8 17.Nc4 Nd5 18.c3=+) 17.Nc4 f6 (17...Rd8 18.c3=+) 18.Bd4 Rd8 19.Nb6 Bb4 20.Qe2 Nb6 21.Bb6 Be1 22.Re1 Bb7 (22...Rf8 23.Bc5 Bb7 24.Bf8 Rf8 25.Qe4+=) 23.Bd8+= Rd8 (23...Qd8? 24.Qe6 Kh8 25.Qf7+-) 24.Ba6 ½–½. Kryvoruchko,Vita (2265) – Demkovich,Anatoliy (2390), TCh–UKR Clubs, 2010. (Chulivska,V (2265) – Demkovich,A (2390), TCh–UKR Clubs, Alushta UKR, 2010. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6))

4.Bc4 cb4 5.c3 Qf6 6.d4 h6 7.de5 Ne5 8.Ne5 Qe5 9.0-0 Bd6 10.g3 Be7 11.Bf4 Qf6 12.Re1 h5 13.Nd2 h4 14.e5= Qc6 15.cb4 g5 16.Bg5?? hg3 17.fg3 b5?? 18.Rc1 bc4 19.Nc4 Qe6 20.Nd6 Kd8?? 21.Qc2+- Bg5 22.Qc8 Ke7 23.Qa8 (23.Qa8 Qd6 24.ed6 Kf6 25.Rc8+-) 1–0. Marshall,Frank James – Cass,AC, ch Marshall CC New York, 1941.

4.Bc4 b6?? 5.bc5 Bc5= 6.Bb2 d6 7.Nc3 Nf6 8.0-0 0-0 9.Bb5 Bb7 10.Ne2 Ne4-/+ 11.d4 ed4 12.Ned4 Nd4 13.Nd4 a6 14.Bd3 Qh4 15.Nf3?? Bf2 16.Kh1 Ng3 0–1. Christy,Rhys – Kolokithas,Peter, AUS–ch U12 (4), 1999.

4.Bc4 Qe7 5.b5+= Nd4 6.c3 Nf3 7.Qf3 Qf6 8.Qe2 b6 9.Bd5 Rb8+= 10.0-0 Bb7 11.Bb7+/- Rb7 12.a4 Bd6 13.Bb2 Qe7 14.f4 c4 0–1. onoudidnt (2010) – eweram (2050), net–chess.com, 2008.

4.Bc4 Nf6 5.Ng5 d5 6.ed5 Nd5 7.Nf7 Kf7-/+ 8.Qf3 Ke6 9.Nc3 Nce7 10.bc5= a6 11.0-0 Rb8 12.d4! b5 13.Bb3 Bb7 14.Bg5 h6+/- 15.Be7 Be7 16.Rfe1 Rf8 17.Re5 Kd7 18.Qg4 Ke8 19.Qg6 Kd7 20.Nd5 Bf6 21.Qg4. Hamann,Carsten (2100) – Dawkins,Arthur (2000), IECG, 2003.

4.b5 Nd4

5.Bb2 d6 6.c3 Nf3 7.Qf3 g6 8.Bc4 Nf6 9.0-0 Bg7 10.d4 0-0 11.de5 de5 12.Rd1 Qe7 13.h3 Nh5 14.Na3 Nf4 15.Nc2 Qg5 (15...Be6 16.Be6 Qe6 17.Ne3=) 16.Kh2 Kh8 17.Ne3 f5 18.ef5 gf5 19.Qg3 Qe7 20.Bb3 e4 21.Nc4 (21.Qf4 Be5 22.c4 Bb2 23.g3-+) 21...Nd3-/+ 22.Qe3 (22.f4 Qc7 (22...Nb2?! 23.Nb2 Bd7 24.Bc4=) 23.Rd3 ed3-/+) 22...f4 23.Qe2? (better is 23.Qd2-/+) 23...f3-+ (23...Nb2?! 24.Qb2 f3 25.g3-/+) 24.Qe3 Be6 25.Kg1 0–1. Koltanyi,Imre (2120) – Varadi,Viktor (2370), Salgotarjan Balazs Memorial op, 2003. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.c3 Ne6 6.Bc4 Nf6 7.d3 d6 8.0-0 g6 (8...Be7 9.a4+=) 9.Bb2 (9.a4 Bg7+=) 9...Bg7 10.d4 (10.Re1 0-0+=) 10...Qc7 (10...Ne4 11.Re1 f5 12.Qb3=+) 11.de5 (11.Nbd2 0-0+=) 11...de5= 12.Bd5 (12.Qc2 0-0=) 12...c4 (12...0-0 13.c4 Nd4 14.Nbd2=+) 13.Ba3 Nd5 14.Qd5 Nf4 15.Qd6 Qd6 16.Bd6 f6 17.Nbd2 (17.Nfd2 Be6-/+) 17...Be6 (17...Ne2 18.Kh1-/+) 18.Bb4 Kf7 19.Rfd1 Rhd8 20.g3 (20.a4!?-/+) 20...Nd3-+ 21.Rab1 (21.a3 Bh6-+) 21...Rd7 (21...Nb4 22.Rb4 Bh6 23.Rb2-+) 22.Kf1 (better 22.a4!?-/+) 22...Rad8 23.Ke2 (23.Ba3 g5-+) 23...Bh6 (23...Nb4 24.Rb4 Bh6 25.Rbb1-+) 24.Nf1 Bg4 25.Ne3 (25.h4 f5 26.N1h2 Bh5-+) 25...Be3 26.Ke3 (26.fe3 Nc1!! 27.Rbc1 Rd1 28.Rd1 Bf3 29.Kf3 Rd1 30.a3-+) 26...Nb4 27.Rd7 Rd7 (27...Rd7 28.Ne5 fe5-+; 27...Bd7?! 28.Rb4 Be6 29.Ne1=+) 0-1. Leisch,Lukas (2400) - Korchmar,V (2450), Titled Tuesday 1st June, 2021. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 e5 3.Nf3)

5.c3 Nf3 6.Qf3 d5 7.ed5 Nf6 8.c4 e4 9.Qe3 Bd6 10.Bb2 0-0 11.h3 Nh5 12.Nc3 f5 13.0-0-0 Re8 14.g3 a6 15.Rg1 Nf6 16.f4 Bd7 17.Be2 Qc7 18.a4 h5 19.Kc2 Kf7 20.Rde1 Re7 21.Ra1 Rh8 22.h4 Rh6 23.Nd1 Re8 24.Qc3 e3 25.Ne3+/- Rg6 26.Bf3 Ne4 27.Be4 Re4 28.Raf1 Qd8 29.g4! hg4 30.h5 Rf6 31.h6 gh6= 32.Qf6 Qf6 33.Bf6 Kf6 34.Kd3 Rd4 35.Kc3 Bf4 36.Rh1 Kg6 37.Rf2 Be5 38.Kc2? f4 39.Rfh2 Bg7 40.Ng2 Rc4 41.Kb3 Rb4 42.Ka3 Rd4 43.Rf1 Rd3 44.Ka2 Rd2 45.Ka3 Kg5 46.Rfh1 Rd3 47.Ka2 Be8 (47...Be8 48.ba6 Rd4 49.ab7 Ra4 50.Kb1 Rb4 51.Kc1 Rb7-+) 0–1. Berghof,A – Cicak,Slavko (2425), Oberliga Ost C9596, 1996.

5.c3 Nf3 6.Qf3 Nf6 7.Bc4 d6 8.Na3 Be7 9.Nc2 0-0 10.Ne3 Be6 11.d3 Qd7 12.Bb2 Rfd8 13.Be6 fe6 14.c4 Rf8 15.Qh3 Rf7 16.0-0 Raf8 17.f4 ef4 18.Rf4 Ne8 19.Rg4 (19.Rf7 Rf7 20.Re1 a6 21.ba6 ba6=) 19...Bf6 (19...Qd8 20.Rg3 Bf6 21.e5-/+) 20.Bf6= Nf6 21.Rg3 Qe7 22.Re1 Kh8 23.Qh4 Nd5 24.Qe7 Ne7 25.e5 d5 26.cd5 ed5 27.h3 h6 28.Rg4 Rf4 29.e6 R4f6 30.Ra4 Re6 31.Ra7 Nf5 32.Nc2 Re1 33.Ne1 Nd6 34.b6 c4 35.Ra5 Nf5 36.Nf3 Ne3 37.dc4 Nc4 38.Rd5 Nb6 39.Rd6 Nc4= 40.Rd7 Ra8 41.Rb7 Ra2 42.Nh4 Nd6 43.Rd7 Ra6 44.Kh2 Kh7 45.Rd8 Ra4 46.Nf3 Nf7 47.Rd7 Ng5 48.Ng5+= hg5 49.Rd6 g6 50.Kg3 Kh6 51.Rd7 Ra3 52.Kh2 Rb3 53.Rf7 Ra3 54.Kg1 Rb3 55.Kf2 Ra3 56.Rf3 Ra4 57.g4 Rb4 58.Kg3 Rc4 ½–½. Zherebukh,Yaroslav (2085) – Nizhnik,Ilya (2115), UKR–ch U12 Ternopol, 2005. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.c4 Nf6 6.Nc3 Bd6 7.d3 Bc7 8.Bd2 a6 9.ba6 Ra6 10.Be2 0-0 11.0-0 d6 12.h3 Bd7 13.Nd5? (13.Nd4 cd4 14.Nd5 Nd5 15.cd5 Ba5=) 13...Nd5 (13...Ba4 14.Qe1 Nc2 15.Qc1 Nd5 16.cd5 Na1 17.Qa1-+) 14.ed5? (14.Nd4 Nf4 15.Nb5 Ba5=+) 14...Ne2 (better 14...Ba4!? 15.Qe1 Nc2-+) 15.Qe2-/+ b5 16.Rfc1 (16.cb5!? Bb5 17.Rfb1-/+) 16...Qa8-/+ 17.Bc3 b4 18.Be1 Ra3 (better 18...b3 19.a4 Ra4 20.Ra4 Qa4-+ (20...Ba4?! 21.Ra1-/+)) 19.d4?? (better 19.Rc2-/+) 19...ed4-+ 20.Qe7 Qd8 21.Qe4 Qf6 22.Bd2 h6 23.Re1 Bh3! 24.Bf4 (24.gh3 Rf3 Double attack (24...Rf3 Deflection; 24...Rf3 Decoy; 24...Rf3 Overloading)) 24...Bf5 25.Qe7 Qe7 26.Re7 Bb8 (26...Bd8 27.Rb7 Ra6 28.Re1-+) 27.Rb7 g5 28.Bc1 (28.Bh2 Re8-+) 28...Ra7 29.Ra7 Ba7 30.a4 (30.Nd2 Bd3-+) 30...Re8 31.Bd2 (31.Nd2-+) 31...b3 32.Bc1 Bd3 33.a5 (33.Nd2 Re1 34.Kh2 Rd1 35.Nb3 Bc4-+) 33...Bc4 34.a6 Bd5 35.Rb1 (35.Kf1 c4 36.Ra5 Bc5-+) 35...c4 36.Ra1 0–1. Alsulaymi,Abdullah M (1830) – Shinkevich,V (2435), World Blitz, 2018. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Bc4 Nf3 6.Qf3 Nf6 7.0-0 Be7 8.d3 0-0 9.Nc3 d6 10.Bg5 Be6 11.Be6 fe6 12.Qh3 Qc8 13.Ne2 c4 14.d4 Rf7 15.de5 de5 (15...Ne4? 16.Be7 de5 17.Qh4+-) 16.Bf6 Rf6 17.f4 (better 17.Qg3!?=) 17...Qc5-/+ 18.Kh1 ef4 19.Rf4? (better 19.a4-/+) 19...Rh6-+ (19...Qb5?! 20.Rf6 Bf6 21.Qe6 Kh8 22.Rf1=) 20.Qf3 Bd6 21.Qf2?! (21.e5 Qe5 22.Rd1-+) 21...Rh2!! 22.Kg1 (22.Kh2 Qh5 Double attack) 22...Rh5 (22...Qh5!? 23.Ng3 Qh6 24.Rf1-+) 23.Ng3 (23.a4 g5 24.g4-+) 23…Bf4 (23...Bf4 24.Qc5 Rc5-+) 0-1. Van der Stee,Michel (2005) - Lalic,Bogdan (2400), 46th OKU, 2019. (=1.e4 c5 2.b4 e5 3.Nf3)

5.Bc4 Nf3 6.Qf3 Nf6 7.Nc3 d6 8.h3 Be7 9.0-0 0-0 10.Nd5 Be6 11.Nf6 Bf6 12.Qb3 Bc4 13.Qc4 Bg5 14.Qd5 Qc7 15.c4 Kh8 16.g4 Qe7 17.a4 Qe6 18.Qb7 Qc4? (better is 18...Qh6 19.Kg2 Bd2 20.Bd2 Qd2+=) 19.d3+- Qd3 20.Ra3 (20.Ra3 Qf1 21.Kf1 Bc1 22.Rd3+-; 20.Bg5?! Qh3 21.Qd7 f5=) 1–0. Braeunlin,Klaus (2135) – Bungter,Hans (1840), Baden–ch Seniors, 2007. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Bc4 Nf3 6.Qf3 Nf6 7.Nc3 Be7 8.d3 d6 9.h3 Bd7 10.Bd2 b6 11.Nd5 0-0 12.Ne3 (12.Ne7 Qe7 13.Bg5 Be6+=) 12...Be6 13.g4 h6 (13...Bc4 14.dc4 a6 15.0-0=) 14.Nf5 (14.h4 Nd7+=) 14...Kh7 (14...a6 15.g5 hg5 16.Bg5 Bf5 A) worse is 17.ef5 d5 18.Bf6 A1) worse is 18...dc4 19.Be7 (worse is 19.Be5 Bf6 20.Bf6 Qf6-/+) 19...Qe7 20.f6 Qf6 21.Qf6 gf6 22.dc4+=; A2) 18...Bf6 19.Qd5 ab5 20.Qd8 Rfd8 (20...Rad8?! 21.Bb5 e4 22.Rb1=) 21.Bb5 e4-/+; B) 17.Qf5 ab5 18.Bb5=) 15.h4 Bf5? (better is 15...Ne4!? 16.Bh6 gh6 17.Ne7 Qe7 18.Be6 Qe6 19.de4 a6=) 16.Qf5+/- (worse is 16.ef5 d5 17.Bb3 c4-/+; 16.gf5?! Qd7+=) 16...g6 17.Qf3 Qd7 (17...Ng8 18.h5 (18.Bf7? Kg7-+) 18...g5 19.Qf5 (19.Bf7? Kg7-+) 19...Kg7 20.Bc3+/-) 18.Rg1 (18.Bh6 Kh6 19.g5 Kg7 20.gf6 Bf6+-) 18...Qe8 (18...Ng8 19.g5+/-) 19.h5 (19.g5 hg5 20.hg5 Nh5+-) 19...Ng8 (19...g5!?+/-) 20.Bd5 Rb8 21.c4 Bh4 22.Rh1 Qe7 23.Ke2 Bg5 24.Be3 Be3 25.fe3 Kg7 26.a4 Qf6 27.Qg2 Qg5+= 28.Rag1 Nf6 29.Qf3 Rbe8 30.Bc6 Re7 31.Rg2 Rc8 32.Rf1 Rcc7 33.a5 Nh7 34.a6 Re6 35.Qh3 Rf6 36.Rfg1 Re7 37.Bd5 Nf8 38.Rh1 Ne6 39.Rgh2 Nf8 40.Rf1 Rf1+= 41.Kf1 Nh7 42.Rf2 Nf6 43.Rg2 Nd5 44.cd5 Rc7 45.Rf2 Qe7 46.hg6 fg6 47.Rh2 Qg5 48.Rf2 Rf7 ½–½. Bock,Ortwin (1900) – Merz,Johann, Niederbayernliga, 2006. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Bc4 Qf6 6.Nc3 Nf3 7.gf3 Ne7 8.Qe2 g6 9.h4 (9.f4 Qf4 10.d4 Qf6 11.de5 Qe5+=) 9...d6 10.Bd5 Rb8 11.d3 h6 (worse is 11...Nd5 12.Nd5 Qd8 13.b6+-) 12.Nd1 (12.h5!?=) 12...Nd5-/+ 13.ed5 Bg7 14.Rb1 0-0 15.Ne3 Qe7 16.Bd2 f5 17.a4 Qf7 18.c4 Bd7 19.a5 Rbe8 20.Kd1 e4 21.fe4 fe4 22.de4 (22.Rg1!?+=) 22...Re4-/+ 23.Rg1 Rh4 24.Kc1 Rh2 (24...Qf2 25.Qf2 Rf2 26.Be1+=) 25.Qd3 g5 (25...Rf2?! 26.Rg6 Rf3 27.Rg1+= (27.Rd6? Bf5 28.Qe2 Bb1 29.Kb1 Qf4-+)) 26.a6 (26.b6 ab6 (26...Qf2?! 27.Rf1 Qf1 28.Nf1-+) 27.Rb6 Qf2-+ (worse is 27...Rf2 28.Rd6 Rf6 29.Rf6 Qf6 30.Qa3-+)) 26...b6 (26...Qf2 27.Rf1 Qf1 28.Nf1-/+) 27.f4 Qf4 28.Nf1 Qf2 29.Qe3 Bd4 30.Qf2 Bf2 (30...Rhf2!? 31.Ne3-+) 31.Rg5 hg5 32.Nh2 Bg3 33.Bg5 Bh2 34.Kd2 Bf4 35.Bf4 Rf4 36.Kc3 Rf3 37.Kb2 Rf2 38.Kc3 Bf5 39.Re1 Kf7 40.Rh1 Rf3 41.Kb2 Rh3 42.Rf1 Kf6 43.Re1 Rh7 44.Re8 Re7 45.Rb8 Ke5 46.Kc3 Rh7 47.Re8 Kf6 48.Rd8?? Rh3-+ 49.Kb2 Ke5 50.Ra8 Kd4 51.Ra7 Kc4 52.Rf7 Rh2 53.Ka3 Bb1 54.Rf4 Kb5 55.Rf1 Bd3 56.a7 Rh8 57.Rf6 Bc4 58.Rh6 Ra8 59.Rf6 Ra7 60.Kb2 Ra2 61.Kc1 Kb4 0–1. Kadas,Gabor (2225) – Mede,Istvan (2175), HUN–chT3 Hungary, 1997. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Ne5 Qe7 6.Nc4 d5 7.Ne3 Qe4 8.Bd3 Qe5 (8...Qf4 9.Nd5 Qe5 10.Ne3 Nf6+-) 9.0-0+- c4 (9...Ne6!? 10.Nc3 c4+=) 10.Nc4! Qc7? (10...dc4 11.Re1 Combination) 11.Re1 Be6 12.Ne3 Nh6? (12...Ne7 13.c3 Qf4+-) 13.c3 Qf4 14.cd4 Qd4 (14...Bd6 15.g3 Qd4 16.Qb3+-) 15.Qb3 Qe5 16.Bb2 d4 17.Bc4 Ng4 (17...0-0-0 18.Na3 Kb8 19.Be6 fe6+-) 18.f4! Qe4 (18...Qf4 19.Be6 Deflection) 19.d3 (better 19.Be6 de3 20.Bg4+-) 19...Bc4 20.de4 (20.Qc4?! Ne3 21.Re2 Qf4+-) 20...Ne3 (20...Bb3 21.Ng4 Be6+-) 21.Qa4 Bc5 22.b6 Ke7 23.Re3! de3 24.Qc4 Rac8 (24...ab6 25.Nc3 Rhc8 26.Nd5 Kf8 27.Bd4+-) 25.Nc3 Rhd8 26.Nd5 (better 26.ba7 e2 27.Kh1+-) 26...Ke8 27.ba7 (27.Nc7 Kf8 28.Qc5 Kg8+-) 27...Rc6 28.Bd4 Ba7 29.Qa4 (29.Qa4 Bd4 30.Qd4+-; 29.Ba7?! Rc4 30.Re1 Re4+-) 1–0. Faccia,Sergio (2020) – Redo,Giorgio (2125), 5th Venice Autumn op, 2009. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Ne5 Qe7 6.Nc4 Qe4 7.Ne3 d5 8.Nc3+= Qe5 9.Ncd5 Be6 10.f4 Qd6 11.Bc4 Ne7 12.Ne7 Bc4 13.Nc4 Qe6 14.Ne3 Be7 15.0-0 0-0-0 (15...Nb5!? 16.Rb1 Qd7=) 16.a4 Bf6 17.Ra3 Rhe8 (17...Nf5 18.Qf3+=) 18.Kh1 (18.f5 Qd6+=) 18...Nf5+= 19.Qf3 Bd4 20.Nf5 Qf5 21.Qh3 Qh3 22.Rh3 h6 23.Rhf3 Re2 24.h4 h5 25.Kh2 Bf6 26.Kh3 Rd4 27.a5 (27.Rc3!? Be7 28.Rg3=) 27...Rc4+= 28.Rd3 Rc2 29.Rd5 b6 (29...Bd4!? 30.a6 ba6 31.ba6 Re6 32.Rh5 Ra6-+) 30.ab6= ab6 31.Rh5 Bb2 32.Bb2 Rb2 33.Rg5 g6 34.f5 Rb3 35.g3 Re5= 36.fg6 Rg5 37.hg5 fg6 38.Rf6 Rb5 39.Rg6 Kd7 40.Rf6 Ke7 41.Rf5 Ra5 42.g6 c4 43.Rf7+- Ke8 44.Rb7 Kf8 45.Rb6 Rd5 46.Kg4 Kg7 47.Rb2 Kg6 48.Kf4 Rd4 49.Ke5 Rd3 50.Rc2 Kg5 51.Ke4 Rd8 52.Ke3 Rd3+= 53.Kf2 Rd4 54.Ke2 Kf5 55.Rc3 Re4 56.Re3 Rd4 57.Kd1 Rd5 58.Kc2 Rd4 59.Kc3 Rg4 60.Re8 Kf6 61.Re3 Kf5 62.Kb4 Kf6? 63.Kc5+- Kf5 64.Kd5 Kf6 65.Rf3 Ke7+/- 66.Rc3 Kd7 67.Ke5 Ke7 68.Ra3 Rg5 69.Ke4 Rg4 70.Kd5 Kd7 71.Re3 Kd8 72.Rf3 Ke7 73.Ke5 Rg5 74.Kf4 Rd5 75.Rf2 Rd3 76.Kg4 c3 77.dc3+- Rc3 78.Kh4 Rc6 79.g4 Rc1 80.Kh5 Rc8 81.Kh6 Rc6 82.Kg7 Rc5 83.Rf5 Rc4 84.g5 Ke6 85.Rf6 Ke7 86.Rf1 Re4 87.g6 Re2 88.Kg8 Re3 89.Rf7 Ke8 90.g7 Re1 91.Rf4 Ke7 92.Rh4 Kf6 93.Kh8 0–1. Rewitz,Poul (2250) – Bonnelykke,O (2025), HC Andersen Mindgames, 2012. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Ne5 Qe7 6.Nc4 Qe4 7.Ne3 Nf6 8.Nc3 Qe5 9.Bc4 d5 10.Ncd5 Nd5 11.Bd5 Bd6 (better is 11...Nc2 12.Qc2 Qa1+=) 12.c3+= Nf5 13.Qf3 0-0 14.g3 Ne3 15.fe3 Bh3 16.Bb7 Rae8 17.Ba3 Qg5 18.0-0-0 (18.Bb2 c4 19.Bc6 Re5+/-) 18...Re5 19.Qc6 Qe7 20.Rde1 (better is 20.Qa6!?+=) 20...Rb8+= 21.Ba6 Bf5 22.Qf3 Qe6 23.Kb2 c4 24.Bd6 Qd6 25.Ka1 Be4 26.Qe2 Bh1 27.Rh1 Rd5 28.Qc4 Rd2 29.Bc8 Qa3 30.Rb1 Qd6 31.Rb3?? Qa6 (31...Qa6 32.ba6 Rb3 33.ab3 Rh2+-) 0–1. Zajarnyi,Anatolyi (2355) – Florescu,Codrut (2295), Bucharest TICC, 1996. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Ne5 Qe7 6.Ng4 Qe4 7.Ne3 g6 8.Nc3 Qe5 9.Bb2 Bg7 10.g3 Nf6 11.Bg2 0-0 12.Rb1 Rb8 13.0-0 b6 14.Ncd5 Nd5 15.Nd5 Qd6 16.c4 Ne6 (16...Bb7 17.Bd4 Bd4 18.Qa4+=) 17.Bc3 (17.Bg7 Kg7 18.Qa4 Bb7+/-) 17...Bb7+= 18.Qa4 Nc7 19.Bg7 Kg7 20.Rb3 (20.Qa7? Bd5 (20...Nd5?! 21.cd5 Ra8 22.Qb7-/+) 21.Bd5 Nd5-+) 20...Bd5 21.Bd5 Nd5 22.Rd3 Nc3 23.Rc3 (23.Rd6? Na4 24.Rb1 Ra8-+) 23...Qd2 24.Re3 Qb4 25.Qb4 cb4 26.Rb1 Kf6 27.Rb4 Rfc8 28.Ra4 Rc7 29.Rea3 ½–½. Deambrosi,Ricardo – De Virgilio,Osmar L, LADAC XI ch–ARG fn, 1987. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

5.Ne5 Qf6 6.f4 d6 7.c3 de5 8.cd4 ef4 9.Nc3? (better is 9.Qf3-/+) 9...Qh4-+ (9...Qd4?! 10.Bb2-/+) 10.g3 fg3 11.Bg2 gh2 (worse is 11...cd4 12.Nb1 gh2 13.Kf1-+) 12.Kf1 cd4 13.Nd5 Bd6 14.Qa4 (14.Ba3 Be5-+) 14...Bd7 (better is 14...Bh3 15.Qb3 Bg2 16.Kg2 Qe4 17.Qf3 Qg6 18.Kf2 Rc8-+) 15.Qd4 (15.Ba3 a6 16.Rb1-+) 15...Bb5 16.d3 Qg3 17.Be3 Rc8 18.Nc3 (18.Rd1 Rc2 19.Bf2 Qg4-+) 18...Bc5 19.Qd5 (19.Ne2 Bd4 20.Ng3 Ba1 21.Kf2 Rc2 22.Kf3 Ra2 23.d4-+) 19...Qe3 20.Qe5 (20.Qc6 bc6 21.Nb5 Qf2) 20...Ne7 21.Qe7 Be7 (21...Be7 22.Bf3 Qf3 23.Ke1 Bh4 24.Kd2 Qd3 25.Kc1 Qc3 26.Kd1 Qd3) 0–1. Heinemann,Guido – Hrivnak,Dusan, Bratislava Slovan op, 1993. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6)

5.Ne5 Qf6 6.f4 Qf4-+ 7.Ng4 Qe4 8.Ne3 Be7 9.Nc3?? Bh4 10.g3 Qh1 11.Qg4 d6 12.Qg7 Bf6 (12...Bf6 13.Qh8 Bh8-+) 0–1. Gallitto,S (2055) – Brunelli,Giovanni, 4th Open Genova ITA (4), 2000.

5.Bc4 d6

6.c3 Nf3 7.Qf3 Qf6 8.Qe2 Qg6 9.f3 Be7 10.Na3 Nf6 11.Nc2 0-0 12.Ne3 Nh5 13.g3 Kh8 14.d3 Bg5 15.a4 Be3 16.Be3 Be6 17.g4 Nf4 18.Bf4 ef4 19.Qd2 Qf6 20.h4 d5 21.ed5 Qe5 22.Kf2 Bd5 23.Rhe1 Qd6 24.Bd5 Qd5 25.d4 cd4 26.Qd4 Qb3 27.Qb4 Qc2 28.Re2 Qg6 29.Qf4 Rac8 30.c4 Rc5 31.Rd1+/- h5 32.Rd5 Rd5 33.cd5 hg4 34.fg4 Rg8 35.Rd2 Re8 36.d6 Qb1 37.Re2+- Re2 38.Ke2 Qc2 39.Ke1 Qc3 40.Qd2 Qg3 41.Kd1 Qg4 42.Kc1 Qc4 43.Kb2 Qa4 44.d7 Qb5 45.Kc1 Qf1 46.Qd1 Qc4 47.Qc2 Qf1 48.Qd1 Qc4 49.Qc2 Qf1 50.Qd1 Qc4 ½–½. Nanu,Ciprian (2325) – Gal,Jozsef (2325), Szeged TT03 IM (7), 1998.

6.d3 Bg4 7.Na3 (7.c3 Nf3 8.gf3 Bh5=) 7...Bf3 8.gf3 Qa5 9.Kf1 g6 10.Bb2 Bg7 11.c3 Ne6 12.Rb1 (12.Qb3 Kd7=) 12...Qc7 13.Qb3 Qd7 14.Bc1 Ne7 15.b6 a6 16.Nc2 0-0 17.Rg1 Nc6 18.Qa4 Kh8 (18...Nf4!? 19.Bf4 ef4+=) 19.Bd5= Rac8 20.Ne3 (20.Kg2!?=) 20...Nf4+= 21.Rg3 Nd3 22.Ng2 f5 23.f4 (better is 23.Qc4 fe4 24.Be6+=) 23...ef4?? (better is 23...fe4 24.Qe4 Nc1 25.Rc1 ef4-+) 24.Rd3+/- fe4 25.Be4 (25.Qe4 Rce8 26.Bc6 bc6+/-) 25...Be5 (25...c4 26.Rf3 d5=) 26.Bd5 Qg7 (26...Qf5 27.Qe4 Qf6 28.Kg1+-) 27.Bf4 c4 28.Qc4 (better is 28.Be5 Ne5 29.Rd4+-) 28...Bf4+= 29.Nf4 Ne5 30.Qd4 Rf4 31.Qf4 Nd3 32.Qe3 (32.Qd6 Nc5 33.Rb4+-) 32...Ne5+= (32...Qc3? 33.Bb7 Qc2 34.Qd4 Ne5 35.Bc8 Qb1 36.Kg2+-) 33.Re1 Rf8 34.Qd4 Qd7 35.Kg1 Qe7 36.Rf1 Qg5 37.Kh1 Rf4= 38.Qe3 Ng4-/+ 39.Qe8 Kg7 40.Qd7 Kh6 41.Qd6?? Nf2-+ 42.Rf2 Rf2 43.Qg3 Qc1 (43...Qc1 44.Qg1 Rf1 45.Kg2 Rg1 46.Kf3 Qc3 47.Kf4 Qd4 48.Kf3 Rf1 49.Kg2 Rf2 50.Kh3 Qe3 51.Bf3 Qf3 52.Kh4 Rh2) 0–1. Rezny,Frantisek – Hlavsa,Filip, Tabor op, 2008. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

6.Nd4 cd4 7.c3 dc3 8.Nc3 Be6 9.Be6 fe6 10.0-0 Nf6 11.d4 ed4 12.Qd4 Be7 13.Rd1 Rc8 14.Bb2 Qb6 15.Qb6 ab6 16.f3 Kf7 17.Rac1 Nd7 18.Na4 Ra8 19.Rc4 Nc5 20.Nb6 (20.Nc3!?+/-) 20...Ra2= 21.Bd4 Rd8 22.Rb1 Rb8 23.Kf1 Ke8 (23...Rd8 24.Rcc1=) 24.Rc3 g6 25.h3 Kd8 (25...Rd8!?=) 26.e5+= Nd7?? (26...Na4 27.ed6 Bd6 28.Rd3+/-) 27.Nd7?? (better is 27.ed6 Bd6 28.Rd1 Nb6 29.Bb6 Ke7 30.Rd6 Kd6 31.Bc7 Kd5 32.Bb8+-) 27...Kd7+= 28.Rbc1 de5 29.Rc7 Ke8 30.Be5 Rd8 31.Bf4 e5 32.Re7! Ke7 33.Bg5 Ke8 34.Bd8 Kd8 35.Re1 Rb2 36.Re5 Kd7 37.h4 Kd6 38.Rg5 (38.f4 h6+/-) 38...Ke6 (38...Rc2!?+=) 39.h5+/- Kf6 40.hg6 Kg5?? (better is 40...hg6 41.Rc5 Ke6+/-) 41.g7+- (41.g7 Kf6 42.g8Q Rb1 43.Ke2+-) 1–0. Langer,Christian (2070) – Karger,Frank (2165), NRW–ch Dortmund, 2001. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

6.Nd4 cd4 7.c3 dc3 8.Nc3 Nf6 9.Qb3+- Qe7 10.0-0 Be6 11.b6 (11.Nd5 Bd5 12.ed5 Qc7+-) 11...Bc4 12.Qc4 a6 (12...ab6!? 13.Nb5 Kd8+=) 13.d4+- Qe6 14.Nd5 Nd5 15.ed5 Rc8 16.Qb3 (16.de6?! Rc4 17.Bb2 fe6=) 16...Qf5 17.Ba3 f6 (17...Be7 18.de5 de5 19.Rac1 Ba3 20.Qa3+-) 18.Rac1 Be7 (18...Rc1 19.Rc1 (19.Bc1?! Be7+=) 19...ed4 20.Rc7+-) 19.Rc8 (19.Rc7!? Rc7 20.bc7 Qc8+-) 19...Qc8 20.de5 fe5 21.Qf3 (better 21.Rc1!? Qf5 22.Rc7+-) 21...Qd7+= 22.Re1 Bf6 23.Qc3 0-0 24.Qc7 Qf5? (24...Rd8!?+=) 25.Rf1 (25.Qb7?? Bh4 26.f3 Be1 27.Qa6 Qb1-+) 25...e4 26.Bd6 Rc8?? (better 26...Rd8+-) 27.Qb7+- Bd4 28.Qa6 Rc2 (28...Bb6 29.Qb6 Qd5+-) 29.b7 Rf2 (29...Rb2 30.Ba3 Rb7 31.Qb7 h5+-) 30.b8Q (30.b8Q Qf8 31.Rf2 Qb8 32.Bb8 Bf2 33.Kf2 h5 34.Qc8 Kh7 35.Qe6 h4 36.Be5 e3 37.Ke2 h3 38.g4 g6 39.Qf6 Kh6 40.Qh4) 1–0. Riha,Vojtech (2215) – Cerny,David (2095), ch–CZE Junior (1), 2019. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4)

6.h3 Be6 7.Be6 fe6 8.Nc3 Nf6 9.0-0 Be7 10.d3 0-0 11.Nh2 Qe8 12.Rb1 Qh5 13.f3 Rf7 14.Be3 Raf8 15.Qd2 Bd8 16.Nd1 d5 17.c3 de4 18.de4 Ne4 19.Qd3 Ng3 20.cd4 ed4 21.Bf2 Nf1 22.Qf1 Qd5 23.Nb2 e5 24.Re1 Qa2 25.Nc4 Bc7 26.Ne5 Be5 27.Re5 Rf5 28.Re7 Qd5 29.Qd3 R5f7 30.Re1 Rd7 31.Re4 Qa2 32.Rh4 h6 33.Ng4 Qe6 34.Qd2 Rd6 35.Bg3 Rb6 36.Bc7 Rb5 37.Nh6 gh6 38.Rg4 Kh8?? 39.Be5!! Kh7 40.Rg7 Kh8 41.Rg6 (41.Rg6 Qe5 42.Qh6) 1–0. Schulz,HJ (2000) – Bach,Mat (2260), 11th IHEM Hamburg GER (1), 2008.

3.Nf3 Qc7

4.Bb2 cb4 5.Ne5 d6 6.Nf3 Nc6 7.d4 Bg4 8.Be2 0-0-0? (8...Nf6 9.d5 Ne5 10.c3+=) 9.a3 (9.d5 Ne5+-) 9...a6? (9...d5!? 10.ed5 Rd5+=) 10.0-0 (10.d5 Bf3 11.gf3 Ne5 12.ab4 Kd7+-) 10...f5 (10...d5 11.ed5 Rd5 12.ab4 Bb4 13.c4+-) 11.Nbd2 (better is 11.d5!? Ne5 12.ef5 Nf3 13.Bf3 Bf3 14.Qf3+- (14.gf3?! ba3 15.Na3 Nh6+=)) 11...fe4+/- 12.Ne4 d5 13.Ng3 h5 14.Nh4 (14.ab4 Bb4 15.h3 h4+/-) 14...Be2+= 15.Ne2 Bd6 16.f4 Nh6 17.Ng6 Rhe8 18.Ne5 Nf5 19.Qd3 g6 (better is 19...Rf8+=) 20.c4?? (better is 20.Ng6 Ne3 21.Rfb1+=) 20...ba3+= 21.Ba3 Ba3 22.Ra3 dc4 (22...Ne5 23.fe5 dc4 24.Qc3=) 23.Qc4 Ncd4 (23...Ne5?! 24.Qc7 Kc7 25.de5=) 24.Nd4 (24.Qc7!? Kc7 25.Nd4 Rd4 26.Rc1 Kd6 27.Rb1 Rf4 28.Ng6+=) 24...Qc4-+ 25.Nc4 Rd4 26.Rc3 Kb8 27.Ne5 Rd2 28.Rb1 Nd4 29.Re3 Rd8 30.Ng6 Rg8 31.Nh4 Ne2 32.Kf1 Nf4 33.g3 Rh2 34.Nf3? Rh1 35.Ng1 h4 36.Re7 b5 37.Rd1 hg3 38.Rf7?? g2-+ 39.Kf2 Nh3 40.Ke3 Rg1 41.Rdd7 Re1 42.Kd2 Rd1! 43.Kd1 g1Q 44.Kc2 Qc5 45.Kd3 Nf2 46.Ke2-+ Re8 47.Kf1 Ng4 48.Rb7-+ Ka8 49.Rbd7 Ne5 0–1. Suchsland,Helmut (1880) – Berg,Rainer, EU–ch Seniors, 2005. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 b6 5.Nc3 Bb7 6.Nb5 Qc6 7.Be5 Qe4 8.Be2+- Na6?? 9.Bg7! Bg7 10.Nd6 Kd8 11.Ne4 Be4 12.Ba6 Ne7 13.Ng5 Bg6 14.Qf3 Kc7 15.Nf7 Rhf8 16.Qb7 1–0. pierred (2750) – tundeski (2550), net–chess.com, 2009.

4.Bb2= Nc6 5.a3 Nd4 (5...cb4 6.Bc4+=) 6.c3 Nf3 7.Qf3 Nf6 8.h3 b6 9.Bb5 Bb7 10.d3 Be7 11.Nd2 0-0 12.0-0 d5 13.Rfd1 a6 14.Ba4 b5 15.Bc2 (15.Bb3 Rfd8+=) 15...cb4-/+ 16.ab4 d4! 17.c4 (17.cd4 Qc2) 17...Bb4-+ 18.Bb3 (18.Ba3 Ba3 19.Ra3 b4-+) 18...Bd2 19.Rd2 bc4 20.Rc1?? (20.Bc4 Ne4! 21.Rc2-+) 20...c3 (20...Qa5!? 21.Qd1 cb3 22.f4-+) 21.Rdd1 Qd6 (better is 21...Qb6!? 22.Ba3 Qb3 23.Bf8 Rf8 24.Rb1-+) 22.Ba1 Bc6 23.Qe2 Rab8 24.Qa2 Bd7 25.Bc3 (25.Rb1 Nh5 26.Bc4 Bb5-+) 25...dc3 26.Rc3 Rb6 27.Rdc1 Be6 28.Bc4 Bc4 29.Qc4 h6 30.f3 (30.Qa2 Nh5-+) 30...Nh5 31.Kf2 (31.Kh2 Rb2-+) 31...Qf6 32.Qc7 Nf4 33.Kf1 Rb2 (33...Rb2 34.R3c2 Rfb8-+ (worse is 34...Nd3 35.Rb2 Nb2 36.Rc6-+)) 0–1. Egholm,Leif (1790) – Justinussen,Sigurd B (1970), Copenhagen DEN, Politiken Cup, 2013. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 Nc6 5.b5 Nd4 6.Bc4 Be7 7.Nc3 Nf6 8.a4 d6 9.Nd4 (better is 9.Nd5!? Nd5 10.Bd5=) 9...cd4-/+ (9...ed4?! 10.Nd5 Nd5 11.Bd5+=) 10.Nd5 Nd5 (better is 10...Qc4!? 11.d3 Qc5-/+) 11.Bd5= 0-0 12.0-0 Be6 13.Be6 fe6 14.c3 dc3 15.Bc3 Rf6 (15...Qc4!? 16.f3 Rac8=) 16.Rc1+= Qd7 17.d4 ed4 18.Bd4 Rg6 19.e5 d5 20.Qc2 Bd8 21.f4 Qf7 22.Bc5 Rc8 23.f5 Rc5?? (better is 23...ef5 24.Rf5 Qe8+/-) 24.fg6+- Qg6 (24...Qe8 25.gh7 Kh8+-) 25.Qc5 (25.Qc5 h6 26.Rf8 Kh7 27.Rd8+-) 1–0. Perez Pietronave,Carlos (2265) – Lang,German, Olivos op, 1993. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 Nc6 5.b5 Nd4 6.Bc4 Be7 7.Nc3 Nf6 8.Ng5 0-0 9.h4 d6 10.Nd5 Nd5 11.Bd5 (11.ed5 Not 11...Bf5 12.Bd4 ed4-/+) 11...Be6 12.c3 (12.Ne6 Worse is 12...fe6 13.Bd4 ed5-/+) 12...Bd5 (12...Nb5? is nothing because of 13.Ne6 fe6 14.Be6 Kh8 15.a4+-) 13.ed5 White has new doubled pawns: d2+d5 (13.cd4 Bg5 (worse is 13...ed4 14.ed5 Qd7 15.0-0+=) 14.dc5 Be4 15.hg5 Qc5-+) 13...Nf5 14.Qc2 (14.Qb1 Bg5 15.hg5 g6=) 14...g6+= 15.Qe4 (15.Nf3 c4+=) 15...Qd7 16.c4 a6 17.a4 ab5 18.cb5 b6 White has a new backward pawn: a4 (18...Bg5 19.hg5 f6 20.gf6 Rf6 21.0-0-/+) 19.Ra3 (19.Nf3 Qc7+=) 19...Ra7 20.g4?? (20.Nf3!?+=) 20...Nh6?? forfeits the advantage (better is 20...Nh4 and the rest is a matter of technique 21.Rh4 Bg5-+) 21.Rg1 Bg5 22.hg5 f5 23.gf6 Rf6-+ 24.g5 Rf4 25.Qh1 Ng4 26.f3-/+ Qf5 27.fg4?? Qb1-+ 28.Ke2 Qb2 29.Re3 Raf7 30.Rg2 Qd4 31.Qh3 Qc4 32.Rd3 0–1. Vogiatzis,Dimitrios (1925) – Svoboda,Milan (1955), Regionalliga NO, 2001. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 Nc6 5.Nc3 cb4 6.Nd5 Qb8 7.Bc4 d6 8.d4 Be6 9.Bb5 a6 10.Nb6 ab5 11.Na8 Qa8 12.d5 Bd7 13.dc6 bc6 14.a3 b3 (14...ba3!? 15.Ra3 Qd8=) 15.cb3+= Nf6 16.0-0 Be7 17.Re1 0-0 18.h3 Qb7 19.b4 Be6 20.Rc1 Ra8 21.Qc2 Ra6 22.Rcd1 Nd7 23.Qd2 h6 24.Qc2 Nb6 25.Nd2 Na4 26.Bc1 f6 27.Re3 Kh7 28.Rg3 Bf7 29.Nb3 Qc8 30.Rdd3 Qe6 31.Qd2 Bf8 32.Na5 Bg6 33.Qe2 h5 34.Nb7 Be8 35.Qf3 g6 36.Qd1 c5 37.Qd2 c4 38.Rdf3 c3 39.Qc2 Rb6 40.Nd8 Qe7+= 41.Be3? Rb8-+ 42.h4 Qd8 43.Qb3 Qe7 44.Bc1 Bf7 45.Qd1 Rc8 46.Kh2 Rc4 47.Rd3 Nb2 48.Bb2 cb2 49.Qb3 Bh6 0–1. Heinemann,Guido (1760) – Scherny,Andrey (2010), Baunatal op 5th, 1999. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.Bb5 Bd7 6.Bd7 Nd7 7.0-0 (7.b5!?=) 7...cb4+= 8.d4 Ngf6 9.a3 (9.Re1!?+=) 9...ba3-/+ 10.Na3 Be7 11.Nb5 Qb6 12.Qe2 0-0 13.de5 de5 14.Ra2 (14.Ne5!? a6 15.Nd7 Nd7 16.Ba3 Ba3 17.Na3+=) 14...a6 15.Na3 (15.Nc3 Qe6-/+) 15...Qc6 16.Re1 b5 (16...Rfc8 17.Ne5 Qe6 18.Nd7 Qa2 19.Bf6 Bf6 20.Nf6 gf6 21.Qg4 Kh8 22.Qf3-/+) 17.Raa1 (17.Ne5!? Ne5 18.Be5-/+) 17...Qc7 18.Nb1 Rfc8 19.Nc3? (better is 19.Rc1-/+) 19...Bb4-+ 20.Nd5 Nd5 21.ed5 Be1 22.Ne1 Qd6 23.Qf3 f6 24.Ra3 (24.Rd1 a5-+) 24...b4 25.Re3 a5 26.Qe4 a4 27.Rh3 Nf8 28.Nf3 (28.Ba1-+) 28...a3 29.Ba1 Rc3! 0–1. Schiller,Thomas (1840) – Rakhmanov,Vsevolod (1740), Pinneberg–ch, 2007. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.Bb5 Bd7 6.Bd7 Nd7 7.a3 Ngf6 8.d3 d5 9.ed5 Nd5 10.0-0 b6? (better is 10...f6!?=) 11.Ne5!+/- Ne5 12.Be5 Qc6 13.c4 Nf6 14.b5 Qd7 (14...Qb7 15.Bf6 gf6 16.Re1 Be7 17.Qg4+-) 15.Bf6 gf6 16.Re1 Be7 17.Qf3 0-0 18.Nc3 Rad8 (18...a6+-) 19.Nd5 Rfe8 20.Re7 (20.Re7 Re7 21.Nf6 Kg7 22.Nd7 Red7 23.Qg3 Kf8 24.Rd1+-; 20.Ne7?! Re7 21.Qf6 Re1 22.Re1 Qd3+-) 1–0. Popov,Valerij (2570) – Malyshev,Igor (2295), Riazan–ch, 2009. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.Nc3+/- Nf6 6.bc5 (6.Nb5!? Qc6 7.bc5 Qc5 8.d4+/-) 6...Qc5+= 7.Nb5 (7.a4 Nbd7+=) 7...Bd7 (7...Qb6 8.Rb1 Ne4 9.Qe2=) 8.Ba3+= Qc6 9.Nc3 a6 10.Nd5 (better is 10.Bd3+=) 10...Nd5-/+ (worse is 10...Ne4 11.c4+=) 11.ed5 Qd5 12.h3 (12.c4 Qe4 13.Be2 Nc6-/+) 12...g6 (12...e4!? 13.Nh2-+) 13.Be2 (13.c4 Qa5 14.Qb3 Nc6-/+) 13...Bg7 (13...e4 14.c4 Qa5 15.Bb2 ef3 16.Bf3-/+) 14.0-0 (14.c4 Qc6 15.d3 Qc7+=) 14...0-0 (better is 14...e4 15.c4 Qe6-/+) 15.Nh2? (15.d3!?+=) 15...e4 (better is 15...Bc6!? 16.f3 f5-+) 16.Rb1-/+ Bc6 17.c4 Qe6 (17...Qg5 18.Bd6 Rd8 19.c5-/+) 18.Re1 (18.d4 ed3 19.Bd3 Re8-/+) 18...f5 (18...Bd4 19.Bb2 Bb2 20.Rb2-/+) 19.Qc2? (better is 19.d4!? Qd7 20.Qd2+=) 19...Nd7-+ 20.Bb2 Bb2 21.Rb2 (21.Qb2 Ne5-+) 21...Rae8 22.Nf1 Qf7 (22...Nc5 23.Rbb1-+) 23.d4 ed3! 24.Qd3 Re6 25.a4 Qf6 26.Reb1 Qg5 27.Bf3?? Ne5 28.Bc6 Nd3 29.Bd5 Nb2 30.Be6 Kg7 31.Rb2 Rb8 32.Bd5 b6 33.a5 Qd8 34.ab6 Rb6 35.Ra2 Qe7 36.Ne3 Qe5 37.Bf3 Rb1 38.Nf1 a5 39.Re2 Qa1 (39...Qa1 40.Kh2 Rf1-+) 0–1. Achituev,Baldan – Zherebtsova,Svetlana, Ulan–Ude RUS, 2014. (=1.e4 c5 2.b4?? e5 3.Nf3 Qc7)

4.Bb2 d6 5.bc5 Qc5 6.a4 Bg4 7.Nc3 (7.d4 Bf3 8.gf3 Qa5 9.Qd2 Qd2 10.Nd2 ed4+-) 7...Nf6 8.Bb5 Nc6 9.Ba3 Qb6 10.a5 (better 10.h3 Bf3 11.Qf3+-) 10...Qd8 (better 10...Qc7!?+=) 11.a6+- Qb6 12.ab7 Qb7 13.Rb1 Be7 14.Nd5 Rc8 (14...Ne4?? 15.Bd3 Qd7 16.Ne7 Ke7 17.Be4+-) 15.Nf6 (15.0-0!? Kf8 16.c3 Nd5 17.ed5 Nd8+-) 15...Bf6+- 16.Bd6 Qd7 (16...Bf3 17.Qf3 a6 18.Bc6 Qc6 19.Ba3+-) 17.Ba3 (17.Bc5 Be7 18.Be3 f5 19.ef5 Qf5+-) 17...Bf3 (better 17...Be7!? 18.Bb2 Bf3 19.Qf3 0-0+-) 18.Qf3+- (18.gf3?! Be7 19.Bb2 Qd6 20.Be5 Qe5+-) 18...Be7 19.0-0 (19.Be7!? Ke7 20.Bc4 Kf8+-) 19...0-0 20.Be7 Qe7 21.c3 Rfd8 22.Qe3 Rc7 (22...Qd6 23.f4+-) 23.Ra1 Nb8 24.Ra2 (24.Rfb1 h6+-) 24...Rc5 (24...Qc5 25.Qc5 Rc5 26.Rb1+-) 25.Be2 (better 25.Rb1+-) 25...Rd7? (25...Rc7 26.Rfa1 Qd6 27.g3+-) 26.Rb1 (26.d4 Rcc7+-) 26...Rd8 27.Rab2 Nd7 (27...Nc6 28.Rb7 Qd6 29.g3+-) 28.Rb7 a5 (28...Qd6+-) 29.Rd7! Qd7 (29...Rd7 30.Rb8 Pinning; 29...Qd7 30.Qc5 Deflection (30.Qc5 Remove defender; 30.Qc5 Overloading)) 30.Qc5 Qd2 31.Qe3 (better 31.Qa5!? h6 32.Bc4 Qd6+-) 31...Qc2 (31...Qe3 32.fe3 Kf8 33.Kf2+-) 32.Qb6 (32.Rb7!? g6 33.g3 Qd2 34.Qd2 Rd2+-) 32...Qd2 (32...Rf8 33.Qb2 Qe4+-) 33.Qa5 1–0. Gelemerov,Yane (2100) – Punchev,Ivan, 126th MGU Open, 2014. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.bc5 Qc5 6.Nc3 Nf6 7.Bb5 Nbd7 8.Qe2 (8.0-0 a6 9.d4 Qb6 10.Bd7 Bd7=) 8...a6= 9.Ba4 Be7 10.0-0 (10.Bb3 0-0=) 10...0-0 (10...b5 11.Bb3=) 11.Bb3+= b5 12.a4 (12.Nd5 Nd5 13.Bd5 A) 13...Qc2? 14.Bc3 (14.Ba8?! Qb2 15.Qe3 Nf6+-) 14...Bb7 15.Bb7+-; B) 13...Rb8+=) 12...b4 13.Nd5 Nd5 14.Bd5 Rb8 (worse 14...Qc2 15.Ba8 Nb6 16.Be5 de5 17.Rfc1+-) 15.d4 Qc7 16.de5 (16.Rfd1 Re8=) 16...Ne5 (16...de5 17.Qc4 Qc4 18.Bc4=) 17.Ne5 (17.Nd4 Bf6=) 17...de5 18.Bb3 a5 19.Rfd1 Bb7 20.f3 (20.Qf3!?=) 20...Rfd8=+ 21.g3 Bc5 (21...Rbc8 22.Kg2=+) 22.Kg2=+ Bd4 (22...Bc6 23.Rd8 Rd8 24.c3=+) 23.Bd4= ed4 (23...Rd4 24.Rd4 ed4 25.Rd1=) 24.Rd2 Qc5 (24...Rd7 25.Rad1=) 25.Qc4 Attacking the isolated pawn on d4 (25.Rad1 Rd7+=) 25...Qc4= 26.Bc4 Rbc8 27.Bb3 Rc7 28.Rad1 Rcd7 29.Bc4 Bc6 30.Bb3 Kf8 31.Kf2 Bb7 32.Bc4 Bc6 ½–½. Kuespert,Helmut (1935) – Brunsch,Michael (1995), Oberfraenkische Einzelmeisterschaft, 2015. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.bc5 Qc5 6.d4 ed4 7.Bd4 Qc7 8.Bb5 Nc6 9.Nc3 a6 (9...Nge7 10.Rb1+=) 10.Nd5 Qd8?? (better is 10...Qa5 11.Bc3 Qd8+/-) 11.Bb6 Qd7 12.Nc7 Ke7 13.Na8 (better is 13.Nd5!? Ke8 14.Bc6 bc6 15.Nc7 Ke7 16.Na8 Qb7+-) 13...ab5 14.0-0 Nf6 15.Re1 g6 (15...Ne5+-) 16.e5 de5 (16...Ne4 17.Re4 Bg7 18.ed6 Kf8 19.Rb1+-) 17.Bc5 Ke8 18.Ne5 Qd1 19.Rad1 Bc5 20.Nc6 Kf8+- 21.Rd8 Kg7 22.Rh8 Kh8 23.Rd1 Bf5 24.Nd4+- Bd4 25.Rd4 Bc2 26.Rd8 Kg7 27.Rc8 Bf5 28.Rc7 Be4 29.f3 Bc6 30.Nb6 Ne8 31.Re7 Nd6 32.Re3 Nf5? 33.Rb3 Nd4 34.Rd3 Nc2 35.Rc3 Nd4 36.Ra3 Nc2 37.Rc3 Nd4 38.Kf2 Nf5 39.Nc8 Kf8 40.Na7 Be8 41.Rc8 Nd6 42.Rd8 Ke7+/- 43.Ra8 Nc4 44.Nc8 Ke6 45.Na7 Bd7 46.Nc8 h5 47.Ra7?? Bc8-+ 0–1. Jangle,Hemang – Liou,Arthur, Fremont MSJE CC, 2005. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.bc5 Qc5 6.d4 ed4 7.Bd4 Qc7 8.Nc3 Qa5 9.Bb5 Bd7 10.Rb1 Nc6 11.0-0 Nf6 (11...a6 12.Bc6 bc6 13.Qd3+/-) 12.e5 (12.Bf6 gf6 13.Nd5 Bg7+-) 12...de5+/- 13.Be5 (13.Bc6 bc6 14.Ne5 Be6+-) 13...Ne5 (better is 13...Bb4!? 14.Bf6 gf6+/-) 14.Ne5+- Bb5 15.Nb5 Rd8 (15...Be7 16.Nc4 Qd8 17.Nbd6 Kf8 18.Rb7+-) 16.Qe2 Be7 17.Nc4 Qa4 18.Nbd6 Kf8 19.Rb7 (19.Nb7?! Rd4 20.Nba5 Rd8+-) 19...Bd6 (19...Rd7 20.Rb8 Rd8+-) 20.Nd6 Nd7 (20...Re8 21.Rf7 Kg8 22.Ne8 Qe8+-) 21.Re1 g6 22.Qe7 Kg7 23.Qf7 (23.Nf5! gf5 24.Qg5 Kf8 25.Qd8 Kg7 26.Qg5 Kf8 27.Qh6 Kg8 28.Re8 Nf8 29.Qf8) 23...Kh6+- 24.Rb3 Rdf8 25.Rh3 Kg5 (25...Qh4 26.Rh4 Kg5 27.Qe7 Rf6 28.g3 h5 29.Nf7 Kf5 30.Rf4) 26.Qe7 Nf6 (26...Rf6 27.Nf7 Kf5 28.Re5 Ne5 29.Qe5 Kg4 30.Qg5) 27.Qe5 (27.Qe5 Kg4 28.Qg3) 1–0. Loscos Vilafranca – Beltran Langarita, Zaragoza La Salle op, 1995. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 d6 5.bc5 Qc5 6.Be2 Nf6 (6...Qb4 7.Ba3 Qe4 8.0-0+=) 7.0-0 (7.Nc3!?=) 7...Ne4 8.d3 Nf6 9.d4 (9.c4 Qc7+=) 9...Qb6-/+ 10.Qc1 e4 11.Ng5? (11.Nfd2 d5-/+) 11...Bf5 (11...h6!? 12.Nh3 Bh3 13.gh3-+) 12.c4 (12.d5 Be7 13.Nd2 Nbd7+=) 12...Nbd7 (12...h6 13.Nh3-/+) 13.Nc3 (13.f3 ef3 14.Rf3 Bg6=) 13...Be7 (13...h6 14.Nh3 Bh3 15.gh3-/+) 14.Qd2 (14.Rb1 h6 (14...Qd4 15.Na4 Qb2 16.Qb2+-) 15.Qf4 Bg6 16.Nge4 Qd4=) 14...0-0 (14...h6 15.Nh3 Bh3 16.gh3-/+) 15.f3 (15.Nd1 d5-/+) 15...ef3 (15...e3 16.Qc1 Rac8-/+ (16...Qd4? 17.Nd5 Nd5 18.Bd4+/-)) 16.Rf3+= Bg6 17.Kh1 Rae8 18.Raf1 h6 19.Nh3 Ne4 20.Ne4 Be4 21.Rg3 Bg6 22.Bc3 Qd8 23.Qd1 Bh4 24.Rg4 Re4 25.Nf4 Bh7?? 26.Bd3+= Re3 27.Bh7+/- Kh7 28.Qc2 Kh8 29.Bd2 Ree8 30.Nh5 Bg5 31.Bg5 hg5 32.h4 f6 33.Qg6 Rg8?? 34.Nf6!+- Nf6 35.hg5 Ng4-+ 36.Qh5 Nh6! 37.gh6 g6 38.Qg4 Qe7 0–1. Landsrath,Mario – Stelzer,Wolfgang, SVR–ch op Reil, 2000. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Bb2 f6 5.b5 b6 6.Bc4 Ne7 7.Nc3 Bb7 8.d3 a6 9.a4 a5 10.Qe2 Bc8 11.h3 Ra7 12.Nd1 d6 13.Ne3 g6 14.g4 Bg7 15.0-0-0 Nd7 16.h4 Nf8 17.h5 Ne6 18.Be6 Be6 19.hg6 hg6 20.Rh8 Bh8 21.c4 Qd8 22.Qf1 Kd7 23.Qh3 Qf8 24.Rh1 Bg7 25.Kc2 Ra8 26.Bc1 Qf7 27.Qg2 Rh8 28.Rh8 Bh8 29.Qh3 Bg7 30.Qh7 Qf8 31.Qh4 g5 32.Qg3 Qf7 33.Nd5 Bd5 34.ed5 Qg6 35.Nd2+= Qh7 36.Ne4 Ng6 37.Qf3 Nf4 38.Ng3 Qh2 39.Be3 Qg1 40.Bc1 Qh2 41.Nf5 Ng2 42.Qe4 Bf8 43.Bd2 Nf4 44.Be1 Qh3 45.Ng3 Qg4+= 46.Qh7 Be7 47.Bd2 Qh3 48.Qg8= Qg4 49.Qa8 Bd8 50.Qc6 Ke7 51.Ne4 Qd7 52.Qa8 Kf7 53.Qb8 Ke7 54.Be3 Kf7 55.Nd6+/- Kg6 56.Nb7 Be7 57.d6 Kg7 58.Bf4 ef4 59.de7 Qe7= 60.Kd1 f3 61.Nd6 Qe2 62.Kc1 Qe1 63.Kc2 Qe2 64.Kb3 Qd1 65.Kb2 Qd2 66.Ka3 Qc3 67.Ka2 ½–½. Koenigl,Anton (1760) – Ertl,Helmut, Niederbayernliga, 2007. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.b5 d6 5.Bc4 Bg4 6.h3 Bh5 7.0-0 Nf6 8.d3 Be7 9.a4 0-0 10.a5 h6 11.Nc3 Nbd7 12.Bd2 Qd8 13.g4 Ng4? (better is 13...Bg6!?+=) 14.hg4+- Bg4 15.Kg2 Kh7 16.Qc1 f5 17.Nh2 Nf6 (17...Bh5 18.Bd5 Rb8 19.a6+-) 18.f3 (better is 18.Ng4!? fg4 19.Rh1+-) 18...Bh5 19.ef5 (19.a6 Rb8+-) 19...d5+/- 20.Bb3 Rc8 21.Qe1 Qd6 (21...c4 22.dc4 dc4 23.Ba2+/-) 22.Rd1 Nd7? (better is 22...Rce8+/-) 23.Bd5+- Rf6 (23...b6+-) 24.Bb7 Rcf8 (24...Rg8 25.Ng4 Rff8 26.Rh1+-) 25.Ne4 (25.Ne4 Qc7 26.Nf6 Nf6 27.Be4+-) 1–0. Schlag,Franz (2105) – Fuchs,Manfred1 (1610), Bad Sooden Allendorf Senior op, 2004. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.Bb2 Nc6 6.Bc4 (6.b5 Nd4+=) 6...Nd4 (6...cb4 7.Nd5 Nd5 8.Bd5+=) 7.Ng5 (7.Nd5 Nd5 8.Bd5 Nf3 9.Qf3 f6+=) 7...Ne6 (better is 7...h6!? 8.Nf7 cb4 9.Nh8 Qc4-/+) 8.Ne6 fe6 9.Nb5 Qb8 10.bc5 Bc5 11.d4 Bb4 12.c3 Ba5 13.de5 (better is 13.Ba3!? Ne4 14.Qg4 Nc3 15.Nd6 Qd6 16.Bd6 Ne4 17.Ke2 Nd6 18.Be6 de6 19.de5+-) 13...Qe5= 14.Nd6? (better is 14.f3!? d5 15.Qa4+=) 14...Ke7-/+ 15.Qa4?? (better is 15.Nc8 Rac8 16.Bd3-/+) 15...Bc3-+ (worse is 15...Kd6 16.0-0-+; 15...Qd6 16.Qa5 Qc6 17.Qb4 d6 18.f3=) 16.Bc3 Qc3 (16...Qd6?? 17.Bb4 Ne4 18.Bd6 Nd6 19.Qa3+-) 17.Ke2 Kd6 18.Rac1 (18.Rad1 Ke7 19.f3 Rd8-+) 18...Qe5 (better is 18...Ne4!? 19.Rhd1 Ke7 20.Kf1-+) 19.Qb4 Kc7 20.Rhe1 (20.Bd3 Kd8-+) 20...Kd8 21.Kf1 Ke8 22.Kg1 Kf7 23.f4 Qf4 24.Rf1 Qe5 25.Rce1 Kg6 26.Rf3 h5 27.Rg3 Kh7 28.Qd2 Qc5 29.Kh1 Qc4 30.Qg5= Rg8?? 31.Qg6+- Kh8 32.Rg5 (32.Rg5 Qb5 33.e5+-) 1–0. Guichard,Raul – Vasconcelos,Paulo, Porto–ch, 1996. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.b5 b6 6.Bc4 Bb7 7.Ng5 d5 8.ed5 Bd6 9.d3 Nbd7 10.Nge4 h6 11.Qe2 0-0-0 (11...0-0!?+/-) 12.a4+- (12.Nd6?! Qd6 13.Ne4 Qe7+/-) 12...Ne8 13.0-0 f5 14.Nd6 Nd6 15.f4 (15.a5 ba5 16.Bd2 Nb6+-) 15...Nc4 16.dc4 e4 17.Be3 g5 18.g3 (18.a5!? Qd6+-) 18...g4+/- 19.Bd2 (19.a5!?+/-) 19...h5+= 20.Be1 Qd6 21.Nd1 Rh7 22.Ne3 Qf6 23.Ra3 Rg8 (23...h4!?+/-) 24.Ng2 Qb2 25.Rb3 Qd4 26.Ne3 (26.Re3!? Qf6+-) 26...Qf6+/- 27.Bc3 Qf7 28.Ng2 Rh6 29.Nh4 Re8 30.Qe3 (30.a5 Nf8+/-) 30...Nf8 31.a5 Ng6 32.Ng6 Qg6 33.ab6 ab6 34.Ra1 h4 35.Be1 hg3 36.Bg3 Qf6 37.c3 Rh3 38.Re1 ½–½. Scharl,Walter – Sieche,Erhard, Regionalliga SW, 2000. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.b5 c4 6.Qe2 (6.Rb1 Bd6+-) 6...Bc5 7.Qc4 (better 7.Na4 d6 8.Nc5 Qc5 9.Qc4+-) 7...Ng4?? (better 7...d6+-) 8.d4+- Bb6 (8...Bd6 9.Qc7 Bc7 10.Nd5+-) 9.Qc7 Bc7 10.Nd5 Bd6 (10...Bd8 11.de5 f6 12.Bb2+-) 11.h3 (11.Nh4 Kd8 12.Nf5 Bf8+-) 11...Nf6 12.de5 Ne4 (12...Nd5 13.ed6 Nc3+-) 13.ed6 (13.ed6 Kd8 14.Nc7+-) 1–0. Maksimovic,Suzana – Grujic,Danijela, 1nd Serbian Team Championship League Wo, 2016. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.b5 d6 6.Bc4 Be7 7.0-0 Nbd7 8.d3 Nb6 9.Bg5 h5 (9...0-0 10.Bb3=) 10.Bf6 Bf6 11.Nd5 Nd5 12.Bd5 g5 13.Nd2 g4 14.Nc4 Qe7 15.a4 Kf8 16.f4 (16.a5 Rb8+/-) 16...ef4+= 17.Rf4 Be6 18.Be6 Qe6 19.Rb1 Rh6 20.Qf1 Kg7 21.Kh1 Bd4 22.Rf5 f6 23.Rc1 Rd8 24.c3 Be5 25.Ne3 d5 (25...Rhh8 26.Nd5 Rc8 27.a5+-) 26.ed5 Qe8 27.Rf2 Rg6 28.d4! cd4 29.cd4 Bd6 30.Nf5 Kf7 31.Re1 Qd7?? (31...Qf8 32.Re6 Kg8 33.Rfe2+- (33.Nd6?! Rd6 34.Rf5 Rd7+-)) 32.Re6 (better is 32.Nd6 Qd6 33.Re6 Qh2 34.Kh2 g3 35.Kg1 gf2 36.Kf2 Rd5+-) 32...Bf8 33.Nh4 Qd5 (33...Bg7 34.Ng6 Kg6 35.Qd3 Kf7+-) 34.Rff6 Rf6 35.Qf6 Kg8 36.Re5 (better is 36.Nf5 Qd7 37.Ne7 Be7 38.Re7 Qe7 39.Qe7 Rf8 40.Qg5 Kf7 41.Qh5 Ke7+-) 36...Bg7 37.Rg5 (37.Rd5?! Bf6 38.Rd8 Bd8+/-) 37...Qd4 (37...Qg5 38.Qg5 Rd4+-) 38.Rg7 (38.Rg7 Kh8 39.Ng6) 1–0. Seps,M (2180) – Hoolt,S (2220), Mitropa Cup w, Chur SUI, 2010. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.b5 d6 6.Bc4 Be7 7.d3 0-0 8.Bg5 Be6 9.Bf6 Bc4?? (better is 9...Bf6 10.0-0 Nd7=) 10.Be7+- (10.dc4?! Bf6 11.0-0 Nd7+/-) 10...Qe7 11.dc4 1–0. Ammerlaan,Stefan – Geukes,Rob, Vlissingen HZ op, 2001. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

4.Nc3 Nf6 5.Nb5 Qc6 6.Ne5 Qb6 (6...Qe4!? 7.Qe2 Qe2 8.Be2 Na6 9.bc5 Bc5+=) 7.bc5 Bc5 8.d4 Ne4?? (8...Be7 9.Nc4 Qd8 10.Ncd6 Bd6 11.Nd6 Kf8+-) 9.dc5+- Nf2 (9...Qc5 10.Be3 Qe5+-) 10.Qd5 (better is 10.cb6 Nd1 11.Nc7 Ke7 12.Na8 Nc3 13.ba7 Nc6 14.Ba3 d6 15.Bd6 Kd6 16.Nf7 Kc5 17.Nh8 Na7+-) 10...Qe6 (10...Qf6 11.Bg5 0-0 12.Bf6 Nh1+-) 11.Nc7 1–0. marekt – xorb, ChessWorld.net, 2013.

4.Nc3+- Nf6 5.bc5 a6 (5...Bc5 6.Bd3=) 6.Bc4 (6.Bd3 Bc5 7.0-0 0-0=) 6...Bc5 7.Bb3 (7.0-0 0-0+=) 7...b5 (7...Nc6 8.0-0=) 8.0-0 d6 (8...0-0 9.Bb2+=) 9.d3 (9.Bb2 0-0+=) 9...Nbd7 (9...0-0 10.Nd5 Nd5 11.Bd5=) 10.Nh4 (10.Bb2=) 10...Nf8 (10...Bd4!? 11.Nd5 Nd5 12.Bd5 Ba1 13.Ba8 Nb6=+) 11.Kh1 (11.Nd5 Nd5 12.Bd5 Rb8+-) 11...Ng6 (11...Be6 12.Bg5 Bd4 13.Bf6 Qc3 14.Bg7=) 12.Nf5+= Bf5 13.ef5 Nh4? (better 13...Ne7 14.Ne4 Bd4+=) 14.Nd5+- Qb7? (better 14...Qd8 15.Bg5 Nf5+-) 15.Nf6 gf6 16.Qg4 Ke7 (16...a5 17.Rb1 Qg2 18.Qg2 Ng2 19.Kg2 Rg8 20.Kf3 Ke7+-) 17.Qh4 d5 (17...Rag8 18.f3 Qd7+-) 18.Re1 Bd6 (18...Kd7 19.Qf6 Rae8 20.Bb2+-) 19.Bb2 (better 19.f4 Kd7 20.Qf6+-) 19...Rhg8 (19...d4 20.Re4 Qd7+-) 20.Be5 Kd7 21.Bd6 Kd6 22.Qf6 Kc5 (22...Kc7 23.Re7 Kc8 24.Rb7 Kb7 25.Re1 Rae8 26.Bd5 Kc7 27.Qc6 Kd8 28.Qb6 Kc8 29.Bb7 Kb8 30.Ba6 Ka8 31.Qb7) 23.Qc3 (23.d4 Kb4 24.Qd6 Ka5 25.Qa3 Kb6 26.Qc5 Ka5 27.a4 Rg2 28.ab5) 23...Kd6+- 24.Qb4 Kc6 25.Qd4 (25.Bd5 Kd5 26.Qe4 Kc5 27.Qb7 Rgd8 28.Qc7 Kb4 29.a4 Rd3 30.cd3 ba4 31.Reb1) 25...Rad8 26.Re5 Qd7 27.Rd5 (27.Bd5 Qd5 28.Rd5 Rd5+-) 27...Qd5 28.Bd5 (28.Qd5?! Rd5 29.Bd5 Kd5+-) 28...Rd5 29.Qc3 (29.Qe4 b4 30.Qc4 Rc5 31.Qa6 Kd7 32.Qb7 Rc7 33.Qd5 Kc8 34.Qa8 Kd7 35.Qg8 Kc6 36.Rb1 Re7 37.Qc8 Rc7 38.Qa8 Kd6 39.Rb4 Kc5 40.Rc4 Kd6 41.Qd8 Ke5 42.f4 Kf5 43.Qd5 Kf6 44.Qe5 Kg6 45.Qg5) 29...Kd7 30.Qf6 Rd8 31.Re1 Kc7 32.Re7 R5d7 33.Rd7 (better 33.Qf7 h5+-) 33...Rd7 34.Qa6 Re7 35.h3 1–0. Hina,Ariza – Gundersen,I (1825), TV2 Elo Open (1), 2017. (=1.e4 c5 2.b4 e5 3.Nf3 Qc7)

3.Nf3 d6

4.a3 Bg4 5.Bb2 Nf6 6.Bb5 Nbd7 7.h3 Bh5 8.Nc3 Be7 (8...a6 9.Bd7 Nd7 10.Qe2=) 9.bc5+= dc5? (better 9...Bf3 10.Qf3 dc5+=) 10.g4+- Bg6 11.g5 Ne4 12.Ne5 Nc3 (12...0-0 13.Nd7 Re8 14.Ne4 Be4 15.0-0+-) 13.Bc3 (13.Bd7 Qd7 14.Bc3 Qd5-/+; worse 13.dc3 Bf5 14.Qf3 0-0 15.Qf5 Ne5 16.Qe5 Bg5+-) 13...Bd6 (13...0-0 14.Nd7 (14.Bd7?! Bg5 15.Rb1 b6+-) 14...Re8 15.Ne5+-) 14.Bd7 Kf8 15.Qe2 (15.Ng6 hg6 16.Qg4 Rh5+-) 15...Be5? (15...Bc2 16.Rc1 Bb3+-) 16.Qe5 (16.Be5?! Qd7 17.Qe3 Bc2=) 16...Qd7 (16...Qe7 17.Kd1 Qe5 18.Be5 Bh5 19.Kc1 Kg8+-) 17.Qg7 Ke7 18.Qf6 Kf8 19.Qh8 (19.Qh8 Ke7 20.Qa8 Bc2 21.Bf6 Kd6 22.Qb8 Kc6 23.d4 cd4 24.Qa7+-) 1–0. fryckh – jaqufe, internet, 2017.

4.Bc4 Nc6 5.b5 Nd4 6.Nd4 cd4 7.c3 Nf6 8.Qb3 Qc7 9.d3 g6 (9...d5 10.ed5 Bc5 11.Ba3+=) 10.cd4 ed4 11.Bb2 Bg7 (11...d5!? 12.Bd5 Nd5 13.Qd5 Bg7+=) 12.Bd4+- 0-0 13.0-0 (better is 13.Nd2+-) 13...Ne4?? (better is 13...d5 14.Bd5 Ng4=) 14.Bg7+- (14.Bg7 Kg7 15.de4+-; 14.de4 Bd4 15.Nc3 Bc3 16.Qc3 Be6=) 1–0. Anton,Jose (1800) – Vivian,J (1730), Provence–ch Majeur op, 1994. (=1.e4 c5 2.b4 e5 3.Nf3 d6)

4.Bc4 Bg4 5.d3 (5.bc5 Nf6 6.cd6 Bd6+=) 5...Nc6 (5...cb4 6.h3 Bh5 7.c3+=) 6.c3 (6.bc5!? dc5 7.Nc3+=) 6...cb4+= 7.cb4 Nf6 8.Qb3 Qd7 9.b5 (better is 9.Nbd2!?=) 9...Na5-/+ 10.Bf7? (better is 10.Qc2!? Bf3 11.gf3-/+) 10...Qf7-+ 11.Qf7 Kf7 12.Ng5 Ke8 13.h3 Bd7 14.Bd2 b6 15.Ba5 ba5 16.a4 d5 17.Nd2 Bb4 18.Rd1 (18.Ngf3 de4 19.Ne5 Be6-+) 18...de4 19.Nge4 Ne4 20.de4 a6 21.0-0 (21.b6 Ba4 22.Ra1 Bc6-+) 21...ab5 22.Nf3 Bc3 23.Rd3 b4 24.Rd5 (24.Rc1 Rc8-+) 24...Ba4 25.Ne5 Be5 (better is 25...Bc2 26.Nc4 a4 27.Rc5-+) 26.Re5 Kf7 27.Ra1 Bc2 (27...b3 28.Ra4 b2 29.Rb5-+) 28.Rea5 (28.Rf5 Ke6 29.Raa5 Ra5 30.Ra5 Rb8 31.Ra6 Ke5 32.Ra5 Ke4 33.f3 Ke3 34.Re5 Kd4-+) 28...Ra5 29.Ra5 Rb8 (29...Be4?! 30.Rb5-+) 30.e5 b3 31.f4 b2 (31...b2 32.Ra7 Ke6-+) 0–1. Julien,Jean Luc – Ballester,Alexandre (2010), Syre Memorial op, 1996. (=1.e4 c5 2.b4 e5 3.Nf3 d6)

4.bc5 dc5 5.Bb2 f6 6.Bc4 Qb6 7.Bc3 Be6 8.Na3 Bc4 9.Nc4 Qe6 10.d3 Bd6 (10...b5 11.Ne3+=) 11.0-0 Ne7 12.Nd6 Qd6 13.Rb1 b6 14.Nd2 0-0 15.Nc4 Qd7 16.Qh5 Nbc6 17.f4 ef4 18.Rf4 Ng6 19.Rf2 Rad8 20.Rbf1 Nd4 21.Bd4 Qd4 22.Kh1 Rfe8 23.Qg4 (23.Qf3 b5 24.Ne3 c4=) 23...Qd7 (23...b5 24.Nd2+=) 24.Qg3= Kh8 25.h4 Ne5?? (25...b5 26.Ne3=) 26.Ne3?? (better is 26.Ne5 Qe6 27.Ng4+-) 26...Qf7 27.Nd5 Qg6 28.Qh3 Qg4 29.Qh2 Qd7 30.Rf5 Ng4 31.Qg3 Nh6 32.R5f4 f5 33.Ne3 fe4+= 34.de4 Qe6 35.Qg5 Qg6 Attacking the isolated pawn on e4 36.Qg6+/- hg6 37.Ng4 Ng4+= 38.Rg4 Re7 39.Kh2 Rd4 40.Rff4 Kh7 41.Kh3 Ra4 42.Rf8 Ree4 43.g3?? Rg4-+ 44.Kg2 Ra2 45.Kf3 Rc4 0–1. Pomerantsevsky,Gennady – Ivanov,Roman, Zelenograd RUS, Open, 2011. (=1.e4 c5 2.b4 e5 3.Nf3 d6)

4.bc5+= dc5 5.Bc4 Nh6 6.d3+= Be6 7.Be6+- fe6 8.Bh6 gh6 9.Ne5 Nc6?? 10.Qh5 Ke7 11.Qf7 Kd6 12.Nc4 1–0. clavecinist (2090) – zurbateur (1655), net–chess.com, 2008.

4.bc5 Nd7 5.cd6 Bd6 6.Nc3 Ngf6 7.Bb2 Qb6 8.Bb5 0-0 9.Rb1 Bc5 10.Qe2 Ng4? (10...Qd6 11.Na4+/-) 11.0-0 (11.Bd7 Bd7 12.Ba3 Qc6 13.Bc5 Qc5 14.Rb7 Bc6+-) 11...Bf2 (better is 11...Qd6!?+/-) 12.Rf2+- Nf2 13.Qf2 Nc5?? (13...Rd8+-) 14.Ba3 (worse is 14.Ne5 Be6 15.Ba3 Rfc8+-) 14...Nd7 15.d4 ed4 16.Bd7 dc3 (16...Qc7 17.Bf8 Qd7 18.Bg7 Kg7 19.Nd4 Qg4+-) 17.Rb6 ab6 18.Bf8 Bd7 19.Bg7! Kg7 20.Qd4 Kh6 (20...Kg8 21.Qd7 Rf8+-) 21.Qf6 Kh5 22.Qg5 1–0. Haas,Bernd – May,R, GER theme, 1994. (=1.e4 c5 2.b4 e5 3.Nf3 d6)

4.bc5 Nf6 5.Bb5 Bd7 6.Bd7 (6.Qe2 Nc6 7.Bb2 Qc7+-) 6...Qd7 (6...Nbd7!? 7.cd6 Ne4+=) 7.0-0 Nc6 8.cd6 Bd6 9.d3 0-0-0 (9...0-0 10.Bg5+-) 10.Nbd2 Rdg8 (10...Qe6 11.Ng5 Qd7 12.Nc4+-) 11.Rb1 g5 12.Nc4 g4 13.Nh4 Ne7 (13...Qe6 14.Nd6 Qd6 15.Nf5+-) 14.Be3 Nc6 (14...Bb8+-) 15.Ba7! (15.Nd6?! Qd6 16.f4 gf3 17.Qf3 Ng4+-) 15...Kd8 (15...Na7 16.Nd6 Double attack (16.Nb6 Deflection)) 16.Nf5 Bf8 17.Bb6 Ke8 18.c3 Be7 (18...Nh5 19.Be3 Rg6 20.Rb5+-) 19.Be3 h5 (19...b5 20.Rb5 Qe6+-) 20.Rb7! 1–0. juliangon (2585) – arvek (1840), ChessWorld.net, 2013. (=1.e4 c5 2.b4 e5 3.Nf3 d6)

3.Nf3 Nf6

4.Bc4 b5 5.Bb5= Qb6 6.Qe2 Bb7 (6...cb4!? 7.Bb2 Ba6 8.Ba6 Qa6+=) 7.bc5+/- Bc5 8.Nc3 0-0 9.Ne5 Re8 10.Nc4 Qe6 11.d3 Bd4 12.Bb2 Bc6 13.0-0 Bc3 14.Bc6 Bb2 15.Ba8 Ba1 16.Ra1 Na6 17.Bb7 Nc5 18.Rb1 Rb8 19.Na5 (19.Qe3!? Rb7 20.Rb7 Nb7 21.Qa7+=) 19...Qa2+= 20.Qe1 Ng4 (better is 20...Qc2!? 21.Rc1 Nd3 22.Rc2 Ne1+=) 21.h3+= Nf2 22.Ra1 Qb2 (22...Qc2? 23.Qf2 Qc3 24.Rf1+-) 23.Rb1 (23.Kf2?? Nd3 (23...Nb7 24.Rb1 Qc2 25.Kg1+/-) 24.Kf3 Ne1 25.Re1 Qc2-+) 23...Qa2 (23...Qc2 24.Rc1 Nh3 25.gh3 Nd3 26.Rc2 Ne1 27.Rc3+-) 24.Ra1 Qb2 (24...Qc2? 25.Qf2 Qc3 26.Rf1+-) ½–½. Pundt,Wilfried – Habermann,Arno, Niedersachsen–ch Seniors, 1999. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.Bc4 Nc6 5.Ng5 d5 6.ed5 Nb4 7.d6 Nfd5 (7...Bd6?? 8.Nf7 (8.Bf7?! Ke7 9.Bb3 Bf5+=) 8...Bg4 9.f3+- (9.Nd8?! Bd1 10.Nb7 Bg4 11.Nd6 Kd7+/-)) 8.Nf7 (8.d3!? h6 9.Ne4+=) 8...Kf7+= 9.Qf3 (better is 9.c3!? b5 10.Bb5+=) 9...Ke6-+ 10.Nc3 Qd6 11.Kd1 (better is 11.Qe4 Bd7 12.a3 Nc2 13.Qc2=) 11...Be7?? (better is 11...a6-+) 12.a3 Rf8 13.Qh3 Kf7 14.Qh7? (14.Qh5!? g6 15.Qe2-/+) 14...Bg4 15.f3? (better is 15.Ke1 Ke8 16.ab4 Nc3 17.Qg7-/+) 15...Bf5?? (better is 15...Be6 16.Nd5 Nd5 17.Bd5 Qd5-+) 16.Qf5= Ke8 17.Qf8?? (better is 17.Bb5 Kd8 18.Qd7 Qd7 19.Bd7 Kd7 20.ab4 Nc3 21.dc3 cb4 22.cb4 Bb4 23.Rb1=) 17...Kf8-+ 18.Ne4 (18.Bd5 Nd5 19.Nd5 Qd5-+) 18...Ne3 19.Ke2 Qd4 20.ab4 Nc4 (20...Nc4 21.c3 Qd5 22.bc5 Bc5-+) 0–1. Mkrtchian,Simon (2180) – O'Toole,Lorcan, Malahide Millennium op rapid, 2003. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.Bc4 Nc6 5.Ng5 d5 6.ed5 Nd5 7.Nf7 Kf7 8.Qf3 Ke6 9.Nc3 Ncb4 10.0-0 b5 11.Nb5 Bb7 (11...Bd7 12.Nc3 Bc6 13.d3-/+) 12.Nc3 (12.Qg4 Kf6 13.f4 Qc8 14.fe5 Ke7 15.Qg5 Ke8 16.Nd6 Bd6 17.ed6 Kd7+-) 12...Qf6 (12...Nc2!? 13.Qg4 Kd6-/+) 13.Qe4-/+ Qf5 14.f3 Rd8 15.Rb1 Kf6 16.a3? (better 16.Rb4 cb4 17.Nd5 Bd5 18.Bd5=+) 16...Nc3-+ 17.Qb7 Rd7 (17...Nb1 18.Qf7 Kg5 19.h4 Kh6 20.Qf5 Be7 21.d3 Nd2 22.Bd2 g5 23.Bg5 Bg5 24.Qg5) 18.Qc8 Nb1 19.ab4 (19.g4 Qc2 20.Qd7 Qc4 21.Qf5 Ke7 22.ab4 Qd4 (22...Qb4?! 23.Qe5 Kd7 24.Bb2=+) 23.Kg2 Qb4 24.Qe5 Kd7-/+) 19...cb4 (19...Rd6 20.Qc5 Nd2 21.Bd2 Rd2 22.Qc6 Kg5 23.Bd3-+) 20.d3? (better 20.g4 Qf4 21.Qd7 Qc4 22.Qf5 Ke7 23.Bb2 Nd2 24.Qg5 Kf7 25.Qd2 Bc5 26.Kg2-+) 20...Kg6 (better 20...Rd6 21.Qb7 Qd7 22.Qb4 Rb6-+) 21.g4+/- Bc5 22.Kg2?? (better 22.Qc5 Qf6 23.f4+-) 22…Rc8-+ (22...Rc8 23.gf5 Kf5-+) 0-1. Srdanovic,Jovana (2070) - Paravyan,D (2650), Titled Tuesday, 2020.

4.Bc4 d5 5.ed5+= e4 6.Qe2 Be7 7.Ne5 0-0 8.Bb2 (8.bc5 Bc5 (worse is 8...Nd5 9.Qe4 Nf6 10.Qe3+/-) 9.Bb2 Re8=) 8...cb4+= 9.0-0 a6 10.a3 (10.d3 b5 11.Bb3 a5=) 10...Bd6 (10...b5 11.Bb3+=) 11.d4 (11.ab4 Bb4 12.Re1 Qc7=) 11...ed3 (11...b5 12.Bb3+=) 12.Qd3 (12.Bd3 ba3 13.Na3 Nd5+=) 12...ba3 (12...Re8 13.Nf3+=) 13.Na3= Nbd7 14.Nd7 Bd7 15.Bb3 Rc8 16.c4 Ng4 17.f4 (better is 17.h3!? Ne5 18.Qg3+=) 17...Bc5-/+ 18.Bd4 Qb6 19.Nc2 Bf5 20.Bc5 (20.Qf5? Bd4 21.Kh1 Ba1 (21...Qb3?! 22.Nd4 Qc4 23.Qg4 Qd4 24.Rad1+=) 22.Qg4 Qb3 23.Na1 Qc4-+) 20...Qc5 (20...Bd3? 21.Bb6 Bf1 22.Rf1+-; 20...Rc5?! 21.Qd4 Qb3 22.Qc5 Qc2 23.Rf3-+) 21.Qd4 Bc2 22.Qc5 Rc5 23.Bc2 Rc4 24.Bb3 Rc3 25.Rfb1 Ne3 26.Ra4 Rd3 27.Rb2 Re8 28.h3 g6 29.Ba2 Re7 30.Bb1? Rd5-+ 31.Be4 Rd1 32.Kf2 b5 33.Rab4 Nc4 34.Re2 Kg7 35.Bc2 Re2 36.Ke2 0–1. Todorova,K (1830) – Raeva,E (2305), 60th ch–BUL w Final, 2011. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.Bc4 d6 5.Ng5+= Be6 (5...d5!? 6.ed5 A) worse is 6...Nd5 7.Nf7 Kf7 8.Qf3 Ke8 9.Bd5+- (9.Qd5?! Qd5 10.Bd5 cb4=); B) 6...h6=) 6.Be6+/- fe6 7.bc5 dc5 8.Ne6 Qd7 9.Nf8 Qd4 10.Ne6 Qa1 11.Nc3 (11.Ng7 Kf7 12.Nc3 Kg7-/+) 11...Na6 12.0-0 Kd7 13.Ng5 h6 14.Nf3 Ne4 15.Ne4 Qa2 (15...Kc7 16.a3 Rae8 17.d4 cd4 18.Ne5+-) 16.Ne5 Kd8 (16...Kc7 17.Qg4 Kb8 18.Nd6+-) 17.Qg4 Qd5 18.Nd6! Nb8 (18...Qd6 19.Nf7 Double attack (19.Nf7 Decoy)) 19.Qc8 (19.Qg7!? Rg8 20.Nef7 Kc7 21.Qg8 Kb6+-) 19...Ke7 20.Qh8 (20.Qc7 Ke6 21.Ng4 Qc4 22.Re1 Qe2 23.Re2 Kd5 24.Re5 Kd4 25.Qc5) 20...Kd6 21.Bb2 a5 (21...Kc7+-) 22.Qd8 Ke6 23.Qc8 (better is 23.Qe8 Kd6 24.c4 Kc7 25.cd5 Ra6+-) 23...Kd6 (23...Nd7 24.Qa8 Ne5 25.Re1+-) 24.Re1 (24.Re1 Qg8 25.Qg8 Nd7 26.Qf7 Ne5 27.Be5 Kc6 28.Qc7 Kd5 29.Qd7 Kc4 30.Re4) 1–0. Kjoita,H (1810) – Hansen,Erl (1725), Sveins Minneturnering, Oslo NOR, 2010. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.Bc4 Ne4 5.Qe2 d5 6.Bb5 Bd7 7.Ne5 Bb5 8.Qb5 Nd7 9.d4 cd4 10.0-0 Nd6 11.Qd5+/- Be7 12.Re1 0-0. marcosramospg – luiilii (2360), net–chess.com, 2010.

4.Bc4 Be7 5.0-0 d6 6.bc5+= dc5 7.Bb2 Nbd7 8.Ne5+/- Ne5 9.Be5 0-0 10.Nc3 b6 11.Qe2 Bg4 12.f3 Bh5 13.Kh1 Bd6? 14.Bd6+- Qd6 15.e5 Qc6 16.ef6 Qf6 17.Rfe1 a6 18.Nd5 Qc6 19.Ne7 (19.Ne7 Kh8 20.Nc6+-) 1–0. yourmove (2795) – carlopm (1930), net–chess.com, 2008.

4.Bc4 Be7 5.bc5 Bc5 6.d4 ed4 7.Nd4 0-0 8.Bg5?? (better is 8.e5 d5 9.Be2-/+) 8...Qa5-+ 9.Bd2 Qa4 10.Bg5 (10.Qe2 Bd4 11.c3-+) 10...Ne4 (10...Qc4?! 11.Bf6 gf6 12.Qg4 Kh8 13.Nf5-+) 11.Bf7 (11.Qd3 d5 12.Be3 Qc4-+ (12...dc4?! 13.Qe4 Re8 14.Qf4-+)) 11…Rf7 (11...Rf7 12.Be3 Nf2 13.Bf2 Rf2-+) 0–1. Melters,Hans – May,Marcel, Koeln KSV–ch, 1997. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.d3 Nc6 5.Bb2 Bd6 6.Nbd2 cb4=+ 7.Nc4 Qe7 8.Nd6 Qd6 9.Be2 Qe7 10.0-0 0-0 11.a3 d5 12.ed5= Nd5 13.ab4 Ndb4 14.Ba3 e4 15.de4=+ Qe4 16.Bd3 Qd5 17.Bh7+= Kh7 18.Qd5 Nd5 19.Bf8 Bf5 20.Bc5 Bc2 21.Nd4 Nd4 22.Bd4 a5 23.Rfc1 Bb3? 24.Rcb1+- Nf4 25.Rb3 Ne2 26.Kf1 Nd4 27.Rb7 f6 28.Ra4 Nc2 29.Rb2 Rc8 30.Ra5 Nd4 31.g3 Rc1 32.Kg2 g5 33.Rd5 Nc6 34.Rd7 Kg6 35.Rc7 Rc4 36.Rb6 Ne5 37.Rc4 Nc4 38.Rb8 g4 39.h4 Ne5 40.Kf1 Kh6 41.Ke2 Kh5 42.Rb5 Kg6 43.Re5! fe5 44.Kd3 Kf5 45.Ke3 Kg6 46.Ke4 Kf6 47.h5 Kg5 48.Ke5 (48.Ke5 Kh6 49.Kf4 Kh5 50.Kf5+-) 1–0. Grudzien,Piotr (1985) – Delekta,Anna (1660), Karkonosze Poland, 2010.

4.d3 Qc7 5.b5 Qa5 6.Bd2 Qb5 7.Ne5 Nc6 8.Nc3 Qb6 9.Nc4 Qd8 10.Be2 Be7 11.e5+/- Ng8 12.Ne4 Ne5 13.Ne5+- Qc7 14.Bf4 d6? 15.Nc4 1–0. pierred (2765) – workchess (2190), net–chess.com, 2010.

4.d3 d5 5.ed5 Nd5 6.bc5 Bc5 7.Be2 (7.Ne5?? Bd4 8.c3 Be5-+) 7...Qa5 (7...Nc6 8.0-0+=) 8.c3 (8.Bd2 Qd8=) 8...Nc3 (8...Nc6 9.0-0 0-0 10.c4+=) 9.Nc3+= Bb4 10.0-0 (10.Bd2 Bc3 11.Rc1 Bd2 12.Qd2 Qd2 13.Kd2+=) 10...Bc3+= 11.Rb1 0-0 (11...Qa2?! 12.Rb3 Bd4 13.Nd4 ed4 14.Bf3=) 12.Rb3 (12.Bd2 Bd2 13.Qd2 Qd2 14.Nd2 Nc6-/+) 12...Nc6-/+ 13.Qc2 Bd4 14.Ba3 (14.Bb2 Be6 (worse is 14...Qa2 15.Ra1 Qa1 16.Ba1 Ba1 17.Rb1+=) 15.Rb7 Rac8-/+) 14...Rd8 15.Nd2? (better is 15.Bb2!?-/+) 15...Be6-+ 16.Nc4 Qa6 17.Rfb1 (17.Bb2 b5 18.Ra3 Qc8-+) 17...Rac8 (17...Na5 18.Na5 Qa5 19.Bb4 Bb3 20.Rb3-+ (20.Ba5?? Bc2 21.Rf1 Bb6 22.Bb6 ab6-+)) 18.Rb7 Na5 (18...e4!? 19.Nd6 Qa3 20.Nc8 Rc8 21.de4-+) 19.Qa4-/+ Bc4 20.dc4 Qf6 21.Qa5 Qf2 22.Kh1 Qe2 23.c5?? (better is 23.Be7 Re8 24.c5-/+) 23...Bc3!!-+ 24.Qa4 (24.Qc3 Rd1 Mate attack) 24...Rd2 25.Rg1 Bd4 26.Qd7 Qg2!! (26...Qg2 27.Rg2 Rd1 28.Rg1 Rg1) 0–1. Ferdiman,Tersiman (2005) – Kaisar,Jenius Hakiki (2285), Jakarta INA, 2nd Indonesia Open, 2012. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

4.d3 h6 5.Ne5 cb4 6.a3 d6 7.Nf3 Nc6 8.ab4+= Be7 9.Be2 a6 10.0-0 Bg4 11.Ba3 d5 12.c3 de4= 13.de4 Qd1 14.Rd1 0-0 15.Nbd2+/- b5 16.h3 Bh5 17.Bb2 Nd8?? 18.Bb5!+- Ne6 19.Ra6 Ra6 20.Ba6 Nf4 21.Kh2 Rd8 22.Ra1 Nd3 23.Bd3 Rd3 24.b5 Bd6 25.e5 Be5 26.Ne5 Rd2 27.Bc1 Rd5 28.b6 Re5 29.b7 (29.b7 Rb5 30.Ra8 Kh7 31.b8Q Rb8 32.Rb8+-) 1–0. cjack (2230) – rmccarty (2145), net–chess.com, 2009.

4.Ne5 Qc7 5.Bb2 cb4 6.d4 Be7 7.Bd3 d6 8.Nf3 0-0 9.0-0 Bg4 10.Qe2 Nc6 11.Nbd2 Bh5 12.h3 Rfe8 13.g4 Bg6 14.Nh4 Nd7 15.Ng6 hg6 16.f4 Bf6 17.Qf2 Nc5 18.g5 Nd3 19.cd3+- Bd8 20.d5 Nb8 21.Kg2 Na6 22.h4 Qd7 23.Kg3 Nc5 24.Qd4 f6 25.Rh1 Bb6-/+ 26.Qb4 Nd3 27.Qc3 Nf4?? 28.Kf4+/- fg5 29.Kg3 Rac8 30.Qd3 Rf8 31.Raf1 gh4 32.Rh4 Rf1 33.Qf1 g5+= 34.Rh5 Rf8 35.Rh8! Kh8 36.Qf8 Kh7 37.Qf5 Qf5 38.ef5 Be3 39.Ne4 Kh6 40.Kg4 Bf4 41.Ba3 1–0. Mione,Dario – Agnelli,Francesco (2060), Bratto op (1), 1997.

4.Ne5 d6 5.Bb5+= Nbd7 6.Nd7 Nd7 7.Qf3 Be7 8.e5 a6 9.Bc4 Ne5-/+ 10.Qc3 Nc4 11.Qc4-/+ Be6 12.Qe2 cb4 13.a3 Bf6 14.c3 0-0 15.ab4-/+ Bf5 16.0-0 Re8 17.Qd1 Re7 18.d4 Qd7 19.Bd2 Rae8 20.Na3 h6 21.Qh5 Bg6 22.Qd5 Be4 23.Qh5 Bd3 24.Rfe1=+ Be2 25.f3 Re6 26.d5? Re5 27.Qg4 Qe7 0–1. Kenyon,Michael – Threloff,Nicholas, IECC, 1995.

4.Ne5 Qe7 5.Bb2 d6 Black threatens to win material: d6xe5 (5...cb4 6.Bc4 d5 7.ed5 Nd5 8.Bd5+-; 5...Ne4 is the weaker alternative 6.Qe2 d6 7.Qe4 de5 8.Nc3+/-) 6.Bb5 Bd7 (better is 6...Kd8 is a viable option 7.Nc4 Qe4 8.Ne3 Ng4=) 7.Nd7+/- Qe4 8.Qe2 (8.Kf1!? Nbd7 9.bc5 dc5 10.Bf6 gf6 11.Bd7 Kd7 12.Nc3+=) 8...Qe2= 9.Ke2 Nbd7 10.Bf6 gf6 Black king safety improved 11.Nc3 0-0-0 12.Bd7 Rd7 13.Nd5 The knight is not easily driven from d5 13...cb4 (13...Rd8 14.Rab1+=) 14.Kf3 (14.Rab1 Rg8+=) 14...Bg7 (14...Kb8 15.Rab1 (worse is 15.Nf6 Rc7 16.Rab1 a5+=) 15...a5 16.Rhe1=) 15.Rhe1 Kd8 (15...Kb8 16.Nb4 Rc8 17.Nd5+=) 16.Nb4 (16.Rab1!?+/-) 16...d5 17.Nd3 b6 Covers c5 18.Rab1 Kc7 19.Rb4 Rhd8 20.Rh4 h6 21.Nf4 Rd6 22.Nh5 White threatens to win material: Nh5xg7 22...Bf8 23.Rf4 Re6? 24.Re6+- fe6 25.Rf6 Bc5 26.Re6 Rf8 27.Rf6 Rf6 28.Nf6 Kc6 29.g4 a5 30.Ng8 Bf8 31.Kg3 Kb5 32.Nf6 Ka4 33.Nd5 b5 34.Nc3 Kb4 35.f4 Kc4 36.g5 b4 37.Ne4 Kd4 38.d3 a4 39.g6 (39.g6 Bg7 40.f5+-) 1–0. Nemeth,John (1870) – Wilkinson,Leo (1690), AUS–ch reserves, 2002. (=1.e4 c5 2.b4 e5 3.Nf3 Nf6)

3.f4 d6

4.Nf3 cb4 5.d4=+.

4.Nf3 Bg4 5.Bc4 Nc6 6.0-0 Nd4 (better is 6...ef4 7.bc5 Nf6=+) 7.Nd4?? (better is 7.Bf7 Ke7 8.Bd5 cb4 9.fe5 de5 10.Bb2 Bf3 11.gf3=) 7...Bd1-+ 8.Bb5 Ke7 9.Nf5 Ke6 10.Nc3? cb4 11.Nd5? Nf6 12.Ng7! Bg7 13.f5 1–0. Bird,Henry Edward – NN, London sim, 1895.

4.Nf3 Bg4 5.Bc4 Nf6 6.fe5 Ne4 7.d3 Ng5?? (better 7...d5 8.Bb5 Nc6+-) 8.Bg5+- f6 (8...Be7 9.h3 Bg5 10.hg4 cb4 11.ed6 Bf6 12.Qe2 Kd7+-) 9.ef6 gf6 10.Qe2 Kd7 11.Qe4 Nc6 (11...fg5 12.Qg4 Kc7+-) 12.Qg4 Kc7 13.Bf4 Rc8 (13...h5 14.Qg3 cb4 15.Nbd2 Qe7 16.Ne4+-) 14.bc5 h5 (14...Ne5 15.Qe6 Qe8 16.0-0 Qe6 17.Be6+-) 15.Qf5 Kb8 (15...Qd7 16.Qf6 Re8 17.Kf2+-) 16.Nbd2 Nb4 17.Rb1 Rc5 18.Qc5 (18.Rb4?! Rf5 19.Bb3 Ka8+=) 18...a5 19.a3 Nc2 20.Kd1 Ka8 21.Qb5 Rh7 22.Kc2 Qc8 23.Qa5 Kb8 24.Be3 Qc5 25.Bc5 dc5 (25...Rd7 26.Qa7 Kc8 27.Qa8 Kc7 28.Bb6 Kc6 29.Nd4) 26.Qd8 Ka7 27.Rb5 b6 (27...Rc7 28.Qc7 Bd6 29.Qb7) 28.Qb6 (28.Qb6 Ka8 29.Qb8) 1–0. Marekt – Twodogsxx, gameknot.com, 2019. (=1.e4 c5 2.b4 e5 3.f4 d6)

3.f4 ef4

4.bc5 Qh4 5.Ke2 Bc5 6.d4 Qg4 7.Nf3 =+.

4.Nf3 b6 5.Bc4 Bb7 (5...cb4 6.d4 Nc6 7.Bf4=) 6.d3 (6.0-0 Nc6 (6...Be4? 7.Re1 Be7 8.Re4+-) 7.d4 cd4 (7...Nb4? 8.Ne5 Qe7 9.Bf4+-) 8.Bf4 b5 (worse is 8...Bb4 9.Ng5 Qe7 10.Bf7 Kd8 11.Bd5+/-) 9.Bb5 Bb4=) 6...Be7 (6...Qf6!? 7.e5 Qf5=) 7.Bf4 Nf6 8.0-0 (8.b5 0-0 9.0-0 a6=) 8...0-0 (better is 8...cb4!? 9.Nh4 b5+=) 9.bc5 bc5 (better is 9...Bc5!? 10.d4 Be7+=) 10.Nc3+/- d5 11.ed5 (11.Rb1!? dc4 12.Rb7+/-) 11...Nd5+= 12.Nd5 Bd5 13.Bd5 (13.Rb1 Nc6+=) 13...Qd5= 14.c4 Qd7 15.Rb1 (15.Ne5 Qd4 16.Kh1 f6=) 15...Nc6 16.Ne5?? (better is 16.Qd2=) 16...Qd4-+ 17.Kh1 Ne5 18.Be5 Qe5 19.Qf3 (19.Re1 Qd6-+) 19...Bf6 20.Rb7 a6 21.g3 (21.Qd5 Qe2 22.Qf3 Qf3 (worse is 22...Qa2 23.Rf7 Rad8 24.Rf8 Kf8 25.Qf5-+) 23.gf3 Rfe8-+) 21...Rab8 22.Rfb1 (22.Ra7 Qd6-+) 22...Rb7 23.Rb7 Qa1 24.Kg2 Qa2 25.Kh3 Qa3 26.Qd5 Bd4 27.Ra7 Qd3 28.Ra8 Qf1 29.Kg4 Qe2 30.Kh3 Qe6 31.Qe6 fe6 32.Ra6 Re8 33.Kg4 e5 34.Kf5 e4 (34...e4 35.Ra2 e3-+) 0–1. Frink,Ferenc (2105) – Licznerski,L (2315), European Rapid, 2014. (=1.e4 c5 2.b4 e5 3.f4 ef4)

4.Nf3 d5 5.ed5 Qd5 6.Nc3 Qh5 7.bc5 Bc5 8.d4 Bb4=+ 9.Bd2 Bc3 10.Bc3 Ne7 11.Be2 0-0 12.0-0 Nbc6 13.Rb1 a6 14.Ne5= Qh6 15.Bf3 Ne5 16.de5= Nf5 17.Re1 Ne3=+ 18.Qd2 Bf5 19.Rb7 Rad8 20.Qe2 Rc8 21.Qd2? Rfd8-+ 22.Bd4 Nc2 23.e6 Be6 24.Re4 Bd5 25.Re8 Re8 26.Bd5 Re1 27.Kf2 Qh4 28.Kf3 Nd4 29.Qd4 Re3 (29...Re3 30.Qe3 fe3 31.Rf7 Qh5 32.Ke4 Kh8-+) 0–1. Capablanca,Jose Raul – Viana,A, Rio de Janeiro sim, 1928.

2...e6

3.b5 b6 4.Nf3 Bb7 5.Nc3+= d5 6.ed5 ed5 7.d4 c4 8.a4 a6 9.Ba3 Ba3 10.Ra3 Qd6 11.Qa1 Nd7 12.Be2= Ngf6 13.0-0 0-0 14.a5 Rfb8 15.ab6 ab5 16.Nb5 Qb6 17.Rb1 Bc6 18.Nc3= Qc7 19.Rb8 Rb8 20.Ra7 Qb6 21.Qa5 Qa5 22.Ra5= Rb2 23.Ne5? Ne5-+ 24.de5 Rc2 25.Rc5 Ne8 26.Rc6-/+ Rc3 27.f4 Ra3 28.Kf2 Kf8 29.g4 Ke7 30.Bf3 Rd3 31.h4 Kd7 32.Rc5 Nc7 33.f5 g6 34.h5 gh5 35.gh5 h6 36.Bg4 Rd4 37.Kg3 Re4 38.f6 Kd8 39.e6 Ne6 40.Rd5 Ke8 41.Rd6 Rd4 42.Ra6 Rd3 43.Kf2 Ng5 44.Ra7? Ne4-+ 45.Ke1 Nf6 46.Be2 Rd7 47.Ra4 c3 48.Bb5 Nh5 49.Bd7 Kd7 50.Rh4 Nf6 51.Rh6 Ke6 52.Kd1 Ke5-+ 53.Kc2 Ne4 54.Kd3 f5 55.Rh8 Kf4 56.Rg8 Kf3= 57.Rg7 Kf4 58.Rf7 Ke5 59.Ke3 Ke6-/+ 60.Rf8 Ke7?? 61.Rf5+= Nd6 ½–½. Anderson,George – Zaczek,Jonathan (1750), Winnipeg Remembrance op, 2003.

3.b5 c4 4.Bc4+/- d6 5.Nf3 Be7 6.Nc3 Nf6 7.0-0 0-0 8.Bb2 Nbd7 9.d4 Nb6 10.Bd3 Qc7 11.Qe2 e5 12.de5 de5 13.Rad1 Be6 14.Rfe1 Bc4? 15.Ne5! Bd3 16.Nd3 1–0. yourmove (2795) – garbajov (1960), net–chess.com, 2008.

3.b5 d6 4.c4 Nf6 5.Bb2 Be7 6.d3 a6 7.a4 ab5 (better 7...b6=+) 8.Nf3? (8.ab5 Ra1 9.Ba1 d5=) 8...Bd7?? (better 8...Qa5 9.Bc3 b4-+) 9.ab5= Ra1 10.Ba1 0-0 (10...Qa5 11.Bc3 Qb6 12.Be2+=) 11.Be2 d5 (11...e5=) 12.Ne5 (12.e5!? Ne8 13.d4=) 12...de4 13.Nd7 (13.de4 Ne4 14.0-0 Nf6=+) 13...Nbd7-/+ (worse 13...Nfd7 14.de4 Bf6 15.Bc3=) 14.0-0 ed3 (14...Qc7 15.de4 Ne4 16.Qd3-/+) 15.Bd3 (15.Qd3 Qc7-/+) 15...Qc7 16.Nd2 Rd8 17.Qc2 (17.Nf3 Qf4=+) 17...b6 (17...Ne5 18.Be5 Qe5 19.Nf3-/+) 18.Rd1 (18.Nf3 Bd6=+) 18...Ne5-/+ 19.Bf1 Qd7?? (better 19...Ng6-/+) 20.Be5+- Ng4 21.Bb2 Bg5 (21...Qd6 22.g3+-) 22.Bc3 (22.Be2!? Nh6+-) 22...Qd6 23.Be2?? (better 23.g3 Bf6 24.Be2 Bc3 25.Ne4+-) 23...Qh2 24.Kf1 Qh1 0–1. Goldmund,Heike – Joubert,Hennie, FICGS, 2017. (=1.e4 c5 2.b4 e6 3.b5 d6)

3.c3 a6 4.Bb2 Nc6 5.Be2 b5 6.Nf3 Bb7 7.d3 d6 8.bc5= dc5 9.a4 Nf6 10.ab5 ab5 11.0-0 Be7 12.Re1 0-0 13.e5 Nd5 14.c4 bc4 15.dc4 Nf4 16.Bf1 Qb6 17.Qd2 Ng6 18.Na3 Rfd8 19.Qc2 Nb4 20.Qb3 Qc6 21.Nb5 Nf4 22.Ra8 Ba8 23.Bc1 Nh3!-/+ 24.gh3 Qf3 25.Qf3 Bf3 26.Re3 Bd1 27.Re4 Bc2-/+ 28.Rg4? h5 29.Rg3 Bh4?? 30.Ra3 Rd1-+ 31.Bb2 Bd3 (31...Bd3 32.Ra1 Rf1 33.Rf1 Bc4-+) 0–1. alexson – elcid10, ChessWorld.net, 2009.

3.c3 Nc6 4.Bb5 Nf6 5.Bc6 bc6 6.e5= Nd5 7.Nf3 cb4-/+ 8.0-0 Ba6 9.Re1 Bc5 10.d4 Bb6 11.cb4=+ Nb4 12.a3 Nd3 13.Re3 Nf4 14.Nc3 c5 15.d5 c4-/+ 16.d6 Be3-+ 17.Be3 Qa5 18.Ne4 c3?? 19.Bf4+/- Rc8 20.Nc3?? Qc3-/+ 21.Bd2 Be2! 22.Qe1 Qd3-+ 23.h3 Bf3 24.gf3 Qf3 25.Kh2 0-0 26.Qg1 Rc2 27.Be1 f5 28.Qg2 Qf4 29.Kg1 Rfc8 30.a4 Qe5 31.Rd1 Qe2 32.Rb1 Rc1 33.Rc1 Rc1 34.Qa8 Kf7 35.Qa7 Qe1 36.Kg2 Qh1 37.Kg3 Rg1 38.Kh4 g5 (38...g5 39.Kh5 Qh3) 0–1. zook (1840) – paolog (2105), net–chess.com, 2008.

3.c4 a6 4.Bb2 Nc6 5.b5 ab5 6.cb5 Nd4 7.Nf3 Qb6 8.Nd4 cd4 9.Bc4 Bc5 10.d3 Ne7 11.a4 0-0 12.0-0 d5 13.ed5 ed5 14.Bb3 Be6 15.Nd2 Rfe8 16.Qh5 Rad8 17.Nf3 Ng6 18.g3 Re7 19.Ng5 h6 20.Nf3 Red7 21.Bc1 Bf8 22.Bb2 Bc5 23.Ne5 Ne5 24.Qe5 Re7 25.Qh5 Qa5 26.Bc1 Qc3-/+ 27.Ba3 Ba3 28.Ra3 Qd3 29.Qh4 Rde8 30.Rd1 ½–½. Fisch,H – Cordes,D, Wch Seniors Bad Woerishofen (7), 1991.

3.c4 Qf6 4.d4 cd4 5.Bd2 e5 6.Bd3 Nc6 7.a3 b6 8.Nh3 h6 9.f3 d6 10.Nf2 Qd8 11.b5 Nce7 12.f4 g6 13.0-0 Be6 14.g4 Qc8 15.Qe2 Nf6 16.f5 Bd7 (worse is 16...gf5 17.ef5 Bd7 18.Ne4=) 17.Bb4 Qc7 18.Nd2 Rg8 19.Qf3 (19.Kh1 a5 20.ba6 Bc6-/+ (20...Ra6?! 21.c5 dc5 22.Ba6=)) 19...0-0-0 (19...a6 20.ba6 h5 21.h3-+) 20.a4 h5 21.h3 Nh7?? (21...gf5 22.ef5 Kb8+=) 22.a5 (better is 22.f6 Ng5 23.Qg3+/-) 22...Ng5 23.Qg2 Kb7 24.ab6+= ab6 25.Ra6 Bh6 26.Rfa1+/- Ra8 27.f6+- Nc6 28.bc6 Bc6 29.Ra8 Ra8 30.Ra8 Ka8 31.h4 Ne6 32.g5 Bf8 33.Qf1 Qa7 34.Qc1 Nc5 35.Qa3 Ba4 36.Nf1 Kb8 37.Bc5 dc5 38.Ng3 Qd7 39.Bf1 Kb7 40.Nd3 Bd6 41.Bh3?? Qh3-+ 42.Nh5 gh5 43.Nc5 Bc5 44.Qh3 d3 45.Kg2 d2 46.Qd3 d1Q 47.Qd5 Qd5 48.ed5 Bb3 49.Kf3 Bc4 50.Ke4 Bd6 (50...Bd6 51.g6 fg6-+) 0–1. Wulff,Jens Peter (1735) – Fleischer,Martin (1670), LM–ch Germany, 1996. (=1.e4 e6 2.c4 c5 3.b4 Qf6)

3.bc5+= e5 4.Nf3 (4.Bb2 Nc6=) 4...Bc5 5.Bb2 (5.c3 Qe7=) 5...d6 (5...Bf2 6.Kf2 Qb6 7.d4 Qb2 8.Nbd2=+) 6.d4 Bb4 (better 6...Qb6!? 7.Bc3 ed4 8.Bd4 Nc6 9.Bc5 dc5=) 7.c3+/- Ba5 8.de5 de5 9.Qd8 Bd8 10.Ne5 f6 11.Nf3 Nc6 12.Bc4 Nge7 13.0-0 Bb6 14.Nbd2 Bg4 15.h3 Bh5 16.Be6 Nd8 17.Bb3 Ndc6 18.Nc4 Bc7 19.Nd4 Bf7 20.Ne3 g6 (20...Bf4 21.Rfe1+/-) 21.Ne6 (21.Nb5 Bb8+-) 21...Bb6 22.Ng4 (22.Nc4 Bf2 23.Rf2 Be6 24.Nd6 Kd7+-) 22...Ng8 23.Rad1 Ke7?? (better 23...h5 24.Ne3 Ne5+-) 24.Ba3 Ke8 (24...Nb4 25.Bb4 Bc5 26.Bc5 Ke8 27.Nc7) 25.Ng7 1-0. unconvential (2160) - PPXAKE (2060), Rated Blitz game, lichess.org, 2015. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4)

3.d4 cd4 4.Qd4 (4.a3!?+=) 4...Nc6-/+ 5.Qd2 Bb4 6.c3 Ba5 7.Bb2 (7.Nf3!?-/+) 7...Nf6-+ 8.Qc2 Nd4 9.Qd2 Qb6 (better is 9...e5 10.Bd3 d5-+) 10.Na3? (better is 10.Bd3-/+) 10...Ne4-+ 11.Qc1 (11.Nc4 Qb2 12.Nb2 Bc3 13.Qc3 Nc3 14.Nd1-+) 11...Nf2 (better is 11...Nb5! 12.Ne2 Nf2-+) 12.Nc4-/+ Qc5 (worse is 12...Nh1 13.Nb6 ab6 14.g4+/-) 13.Ba3 Qf5?? (better is 13...Qc4! 14.Bc4 Nh1+=) 14.Nd6+- Kd8 15.Nf5 Nf5 16.Kf2 Bb6 17.Ke1 d5 18.g4 (18.Nf3!? f6+-) 18...Ne3 19.c4 d4 20.Nf3 Ng4 (20...f6 21.Qd2 e5+-) 21.Qg5 f6 22.Qg4 g6 23.c5 (23.Qf4 Rg8 24.Qf6 Kc7 25.Qe5 Kd8 26.Qd6 Bd7+-) 23...e5 (23...Ba5 24.Kf2 Ke8 25.Qd4+-) 24.Qh4 (24.cb6?! Bg4 25.Nd2 ab6+/-) 24...Ba5 25.Kf2 Re8 26.Qf6 Re7 27.c6 (27.c6 Be6 28.Qe7 Kc8 29.cb7 Kb8 30.Bd6 Bc7 31.Qc7) 1–0. Santos,Paulo J – Figueiredo,Francisco Marques (1670), Naval CC, 1995. (=1.e4 c5 2.b4 e6)

3.Nf3 Na6 4.a3 (4.Ba6 ba6 5.bc5 Qa5=) 4...Nf6 (better is 4...cb4!? 5.Ne5 Qc7+=) 5.e5+= Nd5 (5...Ng8 6.b5 Nb8 7.g3=) 6.c4 Nb6 7.bc5 Bc5 8.d4 Be7 9.Bd3 (9.Nc3 Nc7+/-) 9...d6 (9...Qc7 10.Nbd2 f5+/-) 10.Bb2 (better is 10.ed6!? Qd6 11.c5 Nc5 12.dc5 Qc5 13.Be3 Qa5 14.Qd2 Qd2 15.Nbd2+/-) 10...Bd7 (10...de5 11.Ne5 (worse is 11.de5 Bd7-/+) 11...Bf6 12.f4+=) 11.ed6+= Bf6? (11...Bd6 12.Qd2 Na4 13.Bc3+=) 12.0-0?? (better is 12.Nc3!? Bc6 13.c5+-) 12...Rc8 (better is 12...Na4!? 13.Bc3 Bc6+/-) 13.Nbd2+/- Na4 14.Rb1 Nb2 15.Rb2 Nc5 16.Ne4 (16.Qc2 Ba4 17.Qb1 Nd3 18.Qd3 Qd6+-) 16...Ne4 17.Be4 Rc4 (17...b6 18.Qb3 g5 19.Bb7+-) 18.Rb7+- 0-0?? (better is 18...Bc8 19.Qb3 Bb7 20.Bb7 Qb6 21.Qc4 Qb7 22.Qa4 Kf8+-) 19.Qd3 (better is 19.Bh7 Kh8 20.Bd3 Ba4+-) 19...Ra4 (19...Qc8 20.Bh7 Kh8 21.Be4+-) 20.Bh7 Kh8 21.Rd7 (better is 21.Be4 Kg8 22.Ne5 Be5 23.de5+-) 21...Qd7+= 22.Ne5 Be5 (22...Qd6?? 23.Qh3 Bg5 24.Bc2 Bh6 25.Qd3+-) 23.Qh3? (better is 23.de5!? g6 24.Bg6 fg6 25.Qg6=) 23...Bf4-/+ 24.Bc2 Bh6 25.f4?? (better is 25.Qc3-/+) 25...e5 (25...Rd4 26.Qc3 Rd6 27.Bb1-+) 26.g4 (better is 26.Qd7 Rc4 27.Qe7+-) 26...Qd6 (26...Rd4!? 27.Bf5 Qd6 28.g5-+) 27.g5?? (better is 27.Ba4 Qd4 28.Rf2 Qa4 29.g5-/+) 27...Ra3-+ 28.Qg4 (28.Qg2 ed4 29.Kh1 d3 30.gh6 Qh6-+) 28...Qd4 29.Kg2 Bg5! 0–1. Landsrath,Mario (1755) – Melnikov,Alexander (2020), Koblenz–ch, 2002. (=1.e4 e6 2.Nf3 c5 3.b4 Na6)

3.Nf3 Qc7 4.bc5 Bc5 5.d4 Be7 6.Bd3 b6 7.Qe2 Bb7 8.0-0 d6 9.Bf4 Nd7 10.e5 d5 11.Nbd2 Bf8 12.c4 Ne7 13.Rfc1 Qd8 14.Bg5 h6 15.cd5 (15.Bh4 g5 16.Bg3 Rc8+=) 15...Bd5 (better is 15...hg5 16.de6 fe6=) 16.Bh4 g5 17.Bg3 Bg7 18.Nc4 0-0 19.Nd6 Nc8 20.Ne4 Ne7 21.Nd6 (21.Nc3 Bb7+/-) 21...Nc8 22.Nb5 Ne7 23.Nd2 Nc6 24.Qe3 a6 25.Nd6 b5 26.f4 (26.Be4 Nb4+/-) 26...f5 (better is 26...Qb6 27.Nb3 gf4 28.Bf4 Nce5 29.de5 Qe3 30.Be3 Be5 31.Bh6 Bd6 32.Bf8 Kf8+=) 27.ef6?? (better is 27.a4 b4 28.Rab1+=) 27...Qf6-+ (27...Bf6 28.Rc6 Bc6 29.fg5 Bg5 30.Qe6 Kh8 31.Nf7 Rf7 32.Qf7+/-) 28.Bf2 gf4 29.Qh3 Nd4 30.N2e4 Qe7 31.Bh4 Nf6 32.Rc5? Be4 33.Ne4 Qa7 34.Bf6 Bf6 35.Qh6 Bg7 36.Rg5?? Nf5-+ (36...Nf5 37.Kh1 Nh6-+) 0–1. Orti Camany,Vicente Jose (2105) – Calvo Alfonso,Vicent (2125), Valencia Autonomico North, 2004. (=1.e4 e6 2.Nf3 c5 3.b4 Qc7)

3.f4 Nc6 4.b5= Nce7 5.Nf3 d6 6.d4 =. rpatru (2165) – amayfer (1820), net–chess.com, 2009.

3.f4 Qf6!? 4.c3 cb4 -/+.

3.f4 Nf6 4.e5= Nd5 5.bc5 Bc5 6.d4 Bb4 7.Kf2 Qc7 (7...Nc6 8.a3 Be7 9.c4=) 8.c4+= Nb6 9.Ba3 Ba3 10.Na3 a6 11.Be2 (11.Nf3 d5+/-) 11...0-0 12.Nf3 d6 13.ed6 (13.Qb1 de5 14.fe5 f6 15.ef6 Rf6+=) 13...Qd6 14.c5 Qe7 15.Qd2 N8d7 16.Rhe1 Nc5? (better is 16...Nd5!? 17.Bc4 N7f6=) 17.dc5+/- Qc5 18.Qd4 Qd4 19.Nd4 Nd5 20.g3 Rd8 21.Nf3 b5 22.Rac1 Bb7 23.Ne5 Nb4 24.Rc7 f6 25.Rb7 fe5 26.Bg4 (better is 26.fe5 Rd2 27.Ra1+-) 26...Nd3= 27.Kf1 Ne1 28.Be6 Kf8 (28...Kh8!? 29.Ke1 ef4 30.gf4 Rd4=) 29.Ke1+= Re8 30.f5 Re7 31.Rb6 Rc7 32.Bb3 Rc1 33.Kf2 Rh1 34.Bd5 Ra1? (better is 34...Rh2 35.Kg1 Rd8 36.Kh2 Rd5 37.Ra6 Rd2 38.Kg1 Ra2 39.Ra8 Ke7 40.Ra7 Kf6 41.Nb5 Ra7 (41...Kf5?? 42.Ra2 g5 43.Ra6+-) 42.Na7 Kf5=) 35.Ba8+- Ra2 36.Ke3 Ra3 37.Ke4 Ra1 38.Ke5 Ke7 39.Rb7 Kf8 40.Rd7 b4 41.Rd2 a5 42.Bd5 a4? 43.Rf2 Rc1? 44.Rb2 Ke8?? 45.f6 b3 46.Kd6 (46.Kd6 Kf8 47.f7+-) 1–0. Brendel,Hans Gerhard (1655) – Kohlmeyer,Klaus (1810), Hessen–ch Gr–D, 2009. (=1.e4 c5 2.b4 e6)

3.Bb2 Nc6

4.b5 Nd4 5.Nf3?? Nf3 6.Qf3 d6 7.Bc4 Qe7 8.0-0 e5 9.Nc3 Nf6 10.h3 b6 (10...Be6 11.Nd5 Nd5 12.ed5+=) 11.d4 (better is 11.a4!?+/-) 11...cd4= 12.Nd5 Nd5 13.Bd5 Bb7 14.c4 Rc8 15.Rac1 g6 16.Bb7 (16.Ba3 Rc7=) 16...Qb7+= 17.Qf6 Rg8 18.Ba3 Qe7 19.Qf3 Bh6 20.Rc2 Qe6 21.Bc1 Bc1 22.Rfc1 Rc5 23.a4 Ke7 24.a5 Re8 25.ab6 ab6 26.Qa3 Qd7 27.Qd3 f6 28.f4 Rg8 29.Ra2 h5 (29...Rgc8!?-/+) 30.Ra6= Qd8 31.Rca1 Rc8 32.fe5 de5= 33.Ra7 Ke6 34.Qb3?? Rc7?? 35.c5+- Kd7 36.c6 Ke7+- 37.Qb4 Qd6?? 38.Rc7 Ke6 39.Qd6 Kd6+- 40.Rd7 Kc5 41.Rc1 Kb5 42.c7 Rc8 43.Rd8 Rc7 44.Rc7 Kb4 45.Rb8 b5 46.Rcb7 d3 47.Rb5 Kc3 48.Rc8 Kd2 49.Rd5 f5 50.Re5 Ke3 51.ef5 Kd4 52.Re7 gf5 53.Kf1 d2 54.Ke2 h4 55.Kd2 f4 1–0. Winter,Malcolm J (1620) – Chapman,Gordon B, Southend op London, 1998. (=1.e4 c5 2.b4 e6)

4.bc5+= e5 5.c3 Bc5 6.Nf3? (6.d4 Qb6 7.Qb3 ed4 8.Qb6 Bb6+=) 6...Qc7?? (better is 6...Bf2!? 7.Kf2 Qb6 8.d4 Qb2 9.Nbd2 Nf6-+ (9...ed4?! 10.cd4 Nf6 11.Qb1+=)) 7.Na3 (7.d4!? Be7 8.Nbd2+=) 7...Nf6 8.d3 Ng4 9.d4 ed4 10.Nb5 Qa5 11.Nfd4 0-0 12.Nb3 Bf2 13.Kd2 Qb6 (better is 13...Be3 14.Kc2 Nf2 15.Na5 Nd1 16.Rd1 Na5+=) 14.N5d4?? (better is 14.Qg4 Qe3 15.Kc2+/-) 14...Be3-+ 15.Kc2 (15.Ke2 Nf2 16.Ke3 Nd1 (16...Nh1?! 17.Qh5 Nd4 18.cd4-+) 17.Rd1 Re8-+) 15...Nf2 16.Qe2 (16.Qf3 Bd4 17.cd4 Nh1 18.g3 Nb4 19.Kb1-+) 16...Bd4 17.cd4 Nh1 18.Bc3 d5! 19.e5 Bf5 20.Kb2 Rac8 21.g4 Bg4! 22.Qg4 Nf2 23.Qg2 Ne4 24.Bd3 Nc3 25.Rb1 Na4 26.Ka1 g6 27.Qd5 Ne7 28.Qg2 Rc3 29.Bc2 Rfc8 30.Rc1 Nf5! 31.Bf5 Rc1 32.Nc1 Rc1 (32...Rc1 33.Bb1 Qb1) 0–1. Repas,B – Neff,M, East Lansing–ch MI op–B, 1991. (=1.e4 c5 2.b4 e6)

3.Bb2 d5

4.bc5 de4 5.Bb5 (5.Nc3 Nf6 6.Qe2 Qd4=) 5...Nc6 (5...Bd7 6.Nc3=) 6.Ne2 (6.Qe2 Qd5 7.Nc3 Qc5 8.Ne4 Qd5+=) 6...a6 (6...Qg5 7.Ng3+=) 7.Bc6= bc6 Black has the pair of bishops. 8.Ng3 White threatens to win material: Ng3xe4 (8.Nbc3 Rb8 9.Rb1 Rb4+=) 8...Qd5 Black threatens to win material: Qd5xc5 (8...Rb8 9.Bc3 Qg5 10.0-0=) 9.0-0 White castles and improves king safety (9.Nc3 Qc5 10.Nce4 Qd5+/-) 9...Rb8 Black threatens to win material: Rb8xb2 (9...f5=) 10.Qc1 (10.Nc3 Qc5 11.Nce4 Qa5+=) 10...f5 (10...Qc5 11.Ne4 Qa5 12.d3=) 11.Nc3 White threatens to win material: Nc3xd5 (11.d4!?=) 11...Qc5+= Black should quickly conclude development. 12.Rb1 Rb7 (12...Qd6 13.Ba1+=) 13.Rd1 (13.Ba1 Qd6=) 13...Nf6 (13...Qa5 14.d3 ed3 15.cd3+=) 14.d4 (14.Na4 Qa5 15.Bf6 Rb1 16.Qb1 Qa4=) 14...ed3 (14...Qa5 15.Nge2-/+) 15.Rd3 (15.cd3 Rg8=) 15...Be7 16.Nce2 White has an active position 16...Qa7 17.Bd4 White threatens to win material: Bd4xa7 17...Bc5?? a transit from better to worse (better is 17...c5 would be a reprieve 18.Rb7 Qb7 19.Bf6 Bf6+= (worse is 19...gf6 20.Qh6 Qb1 21.Nf1+=)) 18.Rb7+- Bb7 (18...Qb7 the last chance for counterplay 19.Bc5 Kf7+-) 19.Qe3 Ne4 (19...Bc8 is one last hope 20.Bc5 Qb7 21.Nf5 Ne4 22.Nd6 Nd6 23.Bd6 h6+-) 20.Ne4 Bd4 (20...fe4 there is nothing else anyway 21.Bc5 Qc5 22.Qc5 ed3 23.cd3 Rf8+-) 21.Nd6 Kd7 22.Nd4 Kd6 23.Nb5 Ke7 24.Na7 Ba8 25.Qc5 Kf6 26.Nc6 Kg6 27.Rg3 (27.Rg3 Kh5 28.Qe7 h6 29.Qg7 Re8 30.Rh3) 1–0. Aufmwasser,Guenter – Zacharias,Helmut, Bad Woerishofen Seniors op, 2002. (=1.e4 c5 2.b4 e6)

4.ed5+= ed5 5.bc5 Nf6 6.d4 Bf5 7.Nf3 Nc6 8.c4 Qc7 9.cd5 Nd5 10.Bc4 Qa5 11.Nbd2 Ndb4 12.0-0+- Nd3?? 13.Qe2 Be7 14.Bd3 Bd3 15.Qd3 0-0-0 16.Qf5 Kb8 17.Qf7 1–0. poulmorphy (1800) – kapitanevans, kurnik, 2011.

3.Bb2 Nf6

4.bc5 Bc5 5.d4 Bb4 6.c3 Be7 7.Bd3 0-0 8.Nf3 d6 9.Qc2 h6 10.0-0 Nc6 11.Nbd2 e5 12.d5 Nb8 13.h3 Nbd7 14.Nb3 Re8 15.c4 b6 16.a4 a5 17.Bc3 Ba6 18.Qe2 Rc8 The backward pawn on c4 becomes a target 19.Rfc1 Nc5 20.Nc5 Rc5 (worse 20...bc5 21.Qe1+-) 21.Rab1 Nd7 22.Bd2 Rc8 23.Be3 Exerts pressure on the backward pawn 23...Nc5 24.Qc2 Rb8 25.Nd2 (25.Rb2 Qd7=) 25...Qd7= Attacking the isolated pawn on a4 26.Bc5 bc5 27.Rb8 Rb8 28.Rb1 Rb4 29.Rb4 ab4 30.Qa2 Qa7 31.Nb3 Bc8 32.a5 Bd8 33.Kf1 Bd7 34.Ke2 Kf8 35.Kd2 (35.Kf1 Qa6=+) 35...Bc7 (35...Qa6 36.Ke1=+) 36.Be2 g6 37.g4 (37.Bg4 f5 38.ef5 gf5=+) 37...Bd8 38.Bd3 Bc8 39.Ke2 Qe7 40.Kf1 Qd7 41.Kg2 Kg7 42.Bc2 f5 (42...Bg5!?=+) 43.gf5 (43.ef5!? Qf7 44.Qb1+=) 43...gf5=+ 44.ef5 Qe7 45.Qa4 (45.f4 Qh4 46.Qa1 Qf4-/+) 45...Bd7 (45...Qg5 46.Kf1 Bf5 47.Bf5 Qf5 48.Ke2 Qh3 49.Nd2-/+) 46.Qa2 (46.f6!? Kf6 47.Qa1=+) 46...e4 (better 46...Qg5 47.Kf1 Bf5 48.Bf5 Qf5-+) 47.a6 ½–½. Mishra Rahul – Shetye,Shyam, Mumbai International Open, 2019. (=1.e4 c5 2.b4 e6 3.Bb2 Nf6)

4.d3 Qb6 5.Nd2 Nc6 (5...Qb4 6.Bf6 gf6 7.Ne2+=) 6.Ngf3 (6.Nc4 Qd8 (6...Qb4? 7.c3 Qb5 8.d4+-) 7.bc5 Bc5=) 6...Nb4 7.Rb1 Qc7 8.g3 a6 9.Bg2 Be7 10.0-0 d6 11.Re1 (11.e5!? de5 12.Be5+=) 11...e5-/+ (11...Na2?! 12.c3 b5 13.e5=) 12.Nc4 (12.a3 Nc6-/+) 12...b5 13.Ne3 g6 (13...Na2!? 14.c3 Be6-/+) 14.a3 Nc6 15.h3 Bd7 16.Kh2 Qc8 17.c3 h5 18.Nd5 Bd8 19.Bc1 Nd5 20.ed5 Ne7 21.Ng5 Rb8 22.f4 f6 23.fe5 de5 (worse is 23...fg5 24.ed6 g4 25.de7+/-; 23...fe5 24.Ne4 Bc7 25.d4 cd4 26.cd4+=) 24.Ne4 Nf5 25.d4 cd4 (25...ed4?? 26.Nd6 Kf8 27.Nc8 Rc8 28.cd4+-) 26.cd4 Kf8? (better is 26...0-0 27.de5 fe5+=) 27.de5+- Qc4? (better is 27...fe5 28.Bb2 Bc7+-) 28.e6 Be6 29.de6 Be7 30.Qb3 Qc8? 31.Bb2 Kg7 32.Rbc1 Qd8 33.Red1 Qb6 34.Rd7 Rhe8 35.Rcc7 Kh6 36.Bf6 Bf6 37.Rh7 1–0. Copie,Jose Antonio – Montalvan,Tomas, PER–ARG corr, 1972. (=1.e4 c5 2.b4 e6 3.Bb2 Nf6)

4.e5 Nd5 5.b5 b6 6.c4 Nc7 7.d4 cd4 8.Bd4 Bb7 9.Nf3 d5 10.Nc3 Nd7 11.Be2 Bb4 12.0-0 0-0 13.a3 Be7 14.Qc2 Rc8 15.Qb2 (15.Rfd1 dc4 16.Nd2 Nd5=) 15...Nc5 (15...dc4!? 16.Rad1 Nd5-/+) 16.Rad1 Qe8 17.Bc5 Bc5 18.Na4 Be7 19.Rc1 dc4 20.Nd4 Nd5 21.Rc4 Rc4 22.Bc4 Qa8 23.Bd5 Bd5 24.f3 f6 25.Rc1 Rc8 26.Rc8 Qc8 27.Nc3 Qc4 28.Nd5? ed5-+ 29.Ne6? Kf7 30.Qb1 Ke6 31.g4 g6 32.ef6 Bc5 33.Kh1 Qe2 (33...Qe2 34.h3 Qf3 35.Kh2 Bd6 36.Kg1 Qe3 37.Kf1 Qh3 38.Kf2 Bc5 39.Ke2 Qg2 40.Kd1 Qh1 41.Kc2 Qe4 42.Kd2 Qb1 43.g5 Qb2 44.Kd3 Qa3 45.Kc2 Qa2 46.Kc3 Bf2 47.Kd3 Be1 48.Ke3 Qf2 49.Kd3 Qd2) 0–1. Heinemann,Guido – Kabat,Emil, Bratislava Slovan op, 1993. (=1.e4 c5 2.b4 e6)

4.e5 Nd5 5.b5 Be7 6.c4 Nf4 7.g3 Ng6 8.Bg2 0-0 9.f4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 d6 13.Nf3 de5 14.fe5 Qd3 15.Bf1 Qf5 16.d3 Nd7 17.Qe2 b6 18.Nbd2 Bb7-/+ 19.Rg1 Ra8 20.Bc3 Ra3 21.Bb2 Ra2 22.Bc1 Nge5 23.Ne5 Ne5 24.Qe3 Bg5 25.Qe2 Nf3 26.Nf3 Re2 27.Be2 Bc1 28.Kf2 Bb2 29.Rb1 Bd4 30.Kg2 Qe5 31.Kf1 Bf3 32.Bf3 Qe3 33.Kg2 Qf2 34.Kh3 Qf3 35.Rb3 h5 (35...h5 36.Rb1 Qf5 37.Kg2 h4 38.g4 Qg4 39.Kf1 Qf3 40.Ke1 Bc3; 35...Qf1 36.Kh4 Bf6 37.Kg4 Qf5) 0–1. Van de Ven,A – Riley,K, London Canada, 1991.

3.b5 a6

4.Nc3 d5 5.ed5 (5.ba6 d4 6.Rb1 Na6= (worse 6...dc3 7.ab7 Ra2 8.bc8N Qc8 9.Bb5 Nd7 10.d3+-)) 5...ed5 6.Bb2 (6.ba6 ba6 7.Nf3 Nf6=) 6...Nf6=+ 7.Nf3 (7.ba6 Qe7 8.Qe2 Na6=+) 7...Be7 (7...d4 8.Nb1=+) 8.Be2 (8.ba6 ba6 9.Be2 d4=+) 8...0-0 (8...d4 9.Nb1=+) 9.0-0 ab5 (9...d4 10.Nb1=+) 10.Nb5 Nc6 11.a4 Re8 12.Re1 Bd7 (12...d4 13.Bc4=+) 13.Ne5 Bf8 (13...Be6 14.Bf3=+) 14.Nd7= Nd7 15.Bf3 (15.d3 Nb6=+) 15...Re1=+ 16.Qe1 d4 (16...Nb6 17.Be5 Qd7 18.Bg3-/+) 17.Qe2 (17.c3 d3=+) 17...Nde5 (17...Nb6 18.Be4=+) 18.c4 (18.Be4!?=) 18...Nf3=+ 19.Qf3 Qg5 20.Nd6?? (better 20.Qe2=+) 20...Bd6-+ 0–1. Hilbert,Stephan J – Ramos,Francis, FICGS, 2016. (=1.e4 c5 2.b4 e6 3.b5 a6)

4.c4 ab5+= 5.cb5 d5 6.e5 Nd7 7.f4? (7.Nf3 c4+=) 7...b6 (7...Ne5!? 8.Bb2 Ng6-+) 8.h4 (8.Nf3 Nh6+=) 8...f6 (8...Nh6 9.Nf3-/+) 9.Nf3+= Nh6 10.Bd3 Bb7 11.Qc2 f5 12.Ng5 Qe7 13.0-0 Ng4 14.Be2 (14.a4 h6 15.Nf3 Qf7-/+) 14...h6-/+ 15.Bg4? (better is 15.Nf3!?-/+) 15...hg5-+ 16.Bf5 (16.Be2 gf4 17.Rf4 Ne5-+) 16...ef5 17.hg5 g6 18.d4 cd4 19.Ba3 (19.Qd2-+) 19...Rc8 (19...Qh7!? 20.Bf8 Qh2 21.Kf2 Qf4 22.Kg1 Qh2 23.Kf2 Kf8 24.e6-+) 20.Qd3?? (better is 20.Qc8! Bc8 21.Be7 Be7 22.Nd2+=) 20...Qe6 (20...Qh7 21.Qh3 Qh3 22.gh3 Ba3 23.Na3 Rh3 24.Nb1-+) 21.Bd6? (better is 21.Bf8 Nf8 22.a4-+) 21...Bd6 22.ed6 Qe3 23.Qe3 de3 24.Na3 Kf7 25.Rac1 Rc1 26.Rc1 Nc5 27.Rc3 d4 28.Rc4 d3 29.Rd4 Rd8 30.Nc4-+ e2 31.Kf2 Ne4 32.Ke1 Ke6 33.d7? Rd7-+ 34.Rd7 Kd7 35.Ne5 Ke6 36.Nd3 Nc3 37.a4 Na4 38.g3 Nc3 39.Ne5 Nb5 40.Ke2 Nc3 41.Kf2 Ne4 42.Ke3 Ng3 43.Ng6 Kf7 44.Ne5 Kg7 45.Nd7 b5 46.Kd4 Ne2 47.Ke5 b4 48.Nc5 Kg6 49.Nd3 b3 50.Nb2 Ba6 51.Nd1 Bd3 52.Nb2 Ng3 53.Nd3+= Ne2 54.Nb2 ½–½. Gareau,Jacques – Beaudry,Michel, Sherbrooke op–C, 2004. (=1.e4 c5 2.b4 e6)

3.b5 d5

4.Bb2 d4 5.Nf3= b6 6.Bd3 Nd7 7.c3 e5 8.Bc4 h6 9.0-0 Ngf6 10.Qb3 Qe7 11.d3 g5 12.cd4 ed4 13.Nbd2 Bg7 14.e5 Nh5 15.Rae1 0-0?? 16.e6+- fe6 17.Re6 Qd8 18.Rh6 (18.Rh6 Rf7 19.Bf7 Kf8 20.Bh5+-) 1–0. Tiedemann,Joern (2125) – Suermann,Uwe (1825), RSS5E easy–81, 2009.

4.ed5 ed5 5.Bb2 Nf6 6.Nf3 Be6 7.Be2 Be7 8.0-0 0-0 9.d4 c4 10.a4 Nbd7 11.c3 Ne4 12.Nbd2 Ndf6 13.Ne4 Ne4 14.Nd2 Bf5 (14...Nd2 15.Qd2 a6 16.ba6 Ra6 17.Ba3+=) 15.f4 (15.Ne4 Be4 16.Re1 Qc7=) 15...Nd2 (15...Re8 16.Bf3-/+) 16.Qd2+= Be4 17.Rae1 Rc8 18.Qe3 Bd6 19.Bf3 Re8 20.Be4 Re4 21.Qf3 Re1 ½–½. Mostertman,Milan – Dekker,Tobias, Hengelo U12 op, 2004. (=1.e4 c5 2.b4 e6 3.b5 d5=)

4.ed5 ed5 5.Bb2 Nf6 6.h3 Be6 7.Nf3 Be7 8.a4 0-0 9.Nc3 (9.Be2 Re8+=) 9...d4-/+ 10.Ne2 a6 11.Nf4 ab5 (better is 11...Bf5!?-/+) 12.Ne6= fe6 13.ab5 Nbd7 (13...Ra1!? 14.Qa1 Qd5=) 14.Bc4 Nd5 15.0-0 (15.Ra8 Qa8 16.Qe2 Nf4 17.Be6 Kh8+=) 15...Ra1 16.Ba1 N7b6 17.d3 Qd7 18.Re1 Re8 (18...Nc4 19.dc4 Nf4 20.Bc3=) 19.c3 dc3 20.Qb3 (20.Ne5 Qd6 21.Bd5 ed5 22.Bc3 Bf6=) 20...Bf6+= 21.Ne5 Qc7 22.Bc3 Nc3 23.Qc3 Nd5 24.Bd5 (24.Qb2 Ra8=) 24...ed5+= 25.d4 Re7 (25...c4 26.Nf3 Rc8 27.Qc2+=) 26.f4= cd4 27.Qd4 Qa5?? (better is 27...Qd6=) 28.Qd5 (better is 28.Ra1 Re5 29.fe5 (29.Ra5?? Re1 30.Kf2 Bd4 31.Ke1 Bc3 32.Ke2 Ba5-+) 29...Qb5 30.ef6+-) 28...Kf8 29.Rc1 Qb6 30.Kh1 Qe6 31.Qe6 Re6 32.Rc8 Re8 33.Nd7 Ke7 34.Rc7?? (better is 34.Re8 Ke8 35.Nf6 gf6 36.Kh2+-) 34...Kd6= 35.Rb7 Re7 36.Nf6 Rb7 37.Nh7 Rb5 38.Ng5 Ke7 39.Kh2 Rb3 40.Nf3 Kf6 41.Kg3 Kf5 42.Kf2 Kf4?? (better is 42...Rb4 43.g3 Rb2 44.Ke3 Rb3 45.Ke2 Ra3=) 43.g3+- (43.g3 Ke4 44.Nd2 Kd4 45.Nb3 Ke4 46.Nc5 Kd5 47.Kf3+-) 1–0. Anderson,George – Hogeveen Rutter,Alexander (1780), Winnipeg Boxer op, 2004. (=1.e4 c5 2.b4 e6 3.b5 d5=)

4.e5 Qc7 5.f4 (5.Bb2 Nd7 6.f4 g5=+) 5...Nd7 (5...g5 6.g3=) 6.Nf3= b6 (6...Nh6 7.c4 dc4 8.Na3=+) 7.Be2 (7.c4 Ne7=) 7...Bb7 8.0-0 Ne7 9.c3 (9.Qe1 g6=) 9...h6 (9...Nf5 10.Bb2=+) 10.d4 c4 (10...Nf5 11.Bd3=) 11.Qc2 (11.Nh4 Nf5 12.Nf5 ef5+=) 11...0-0-0 (11...g6 12.Nh4+=) 12.Be3 (12.a4 Kb8+=) 12...g6 (12...f6 13.a4+=) 13.Nbd2 Bg7 (13...Nf5 14.Bf2+=) 14.Rfb1 (14.Bf2 Rdg8+=) 14...Rdg8 (14...f6 15.Bf2 Nf5+=) 15.a4 (15.Nf1 Nf5 16.Bd2 g5+=) 15...Bf8 (15...g5 16.fg5 hg5 17.Bf2= (17.Ng5 Nf5 18.Bf2 Be5 19.de5 Ne5-+)) 16.Ra2 (16.a5!? ba5 17.Qa4+-) 16...Nf5 17.Bf2 (17.Nf1 g5 18.Bc1 gf4 19.Bf4 Rg4+=) 17...g5 18.fg5 hg5 19.g4 Nh6 20.h3 Be7 (20...f5 21.ef6 Nf6 22.a5=) 21.Nh2 (21.a5 f5 22.ef6 Bf6+=) 21...f5 (21...f6 22.ef6 Nf6 23.a5=+) 22.gf5 (22.a5 fg4 (worse 22...ba5 23.Rba1+=) 23.Ng4 Nf5=) 22...Nf5 (22...g4!? 23.hg4 Nf5=+) 23.Bg4= Rf8 24.Rf1 (24.Nhf3 Kb8=) 24...Bd8 (24...Kb8 25.Rb1=+) 25.Ndf3 (25.a5 ba5 26.Rfa1 Qb6=+) 25...Be7 (25...Kb8 26.Nd2-/+) 26.Qc1 The isolani on g5 becomes a target (26.a5 Kb8=) 26...Qd8 (26...Rhg8 27.Qc2=+) 27.Kg2 (27.Qc2 Kb8=+) 27...Rhg8 (27...Kb8 28.a5=+) 28.Bg3 (28.a5 ba5 29.Qc2 Qb6=) 28...Qe8 (28...Rg6 29.Ne1 Ng3 30.Rf8 Nf8 31.Kg3=+) 29.Raf2 (29.a5!?=+) 29...Qg6 30.Ng1 Kc7 (30...Nh4 31.Kh1 Rf2 32.Bf2 Rf8-/+) 31.Bf5=+ ef5 32.e6 f4 33.ed7 fg3 (better 33...Qe4 34.Rf3 fg3=+) 34.d8Q? (34.Rf8!? Qe4 35.Nhf3 Bf8 36.Re1=) 34...Kd8 (34...Rd8 35.Rf7 Kb8 36.Re7 gh2 37.Kh2 Qd6 38.Re5-/+) 35.Rf8-/+ Bf8 36.Kg3? (36.Ng4 Bd6 37.Qb1 Qb1 38.Rb1 Re8-/+) 36...Qe4 (better 36...Bd6!? 37.Kg2 Qe4 38.Rf3-+) 37.Ngf3 (37.Rf8 Rf8 38.Qg5 Kc8-+) 37...Bd6 38.Kg2? (better 38.Kf2 Bf4 39.Qb1-+) 38...Bc8 (38...Bh2 39.Kh2 g4 40.Ng5 Qe2 41.Kg3 gh3 42.Rf2-+) 39.Re1 Bh3 40.Kh1 (40.Kh3?? Rh8 41.Kg2 Rh2 42.Kg1 Qg4 43.Kf1 Qg2) 40...Qf4 (40...Qf5 41.Qe3 Kc8 42.Ne5-+) 41.Qf4 (41.Qe3 Bf5 42.Qf4 Bf4-+) 41...gf4 42.Rg1 Rg1 43.Kg1 Ba3 (better 43...Bf5 44.Kf2 Bc2-+) 44.Ne5? (44.Kf2-+) 44...Bb2 45.Nc6 (45.Kf2 Bc3 46.Kf3 Bd2-+) 45...Kc7 46.Nf3 (46.Na7 Bc3 47.Nf3 Bf5-+) 46...Bc3 47.Kf2 (47.Na7 Bf5 48.Nc6-+) 47...a6! 48.Nfe5?? (48.ba6 Kc6 Deflection) 48...ab5 49.ab5 Bd7 50.Kf3 Bc6 51.Nc6 Bd2 52.Ke2 c3 53.Nb4 Kd6 54.Nc2 (54.Kf3 Be3 55.Nc2 Ke7-+) 54...Ke7 (54...Ke6 55.Nb4-+) 55.Nb4 (55.Kf3 Ke6 56.Kg4 Be3-+) 55...Ke6 56.Nc2 (56.Kf2 Kf5 57.Kf3-+) 56...Kf5 57.Kf3 Be3! (57...Be3 58.Ne3 fe3 59.Ke3 c2-+) 0–1. Ten Gomez,Sergi (1780) – Olivas Montoya,Albert (1845), 3rd Mataro Spain, Maresme Open, 2016. (=1.e4 c5 2.b4 e6 3.b5 d5)

4.Nc3 d4

5.Nce2 e5 6.Nf3 Bd6 7.Ng3 Nf6 8.Bb2 0-0 9.a4 (9.Be2 Nbd7 (9...Qa5 10.0-0 a6 11.a4 b6=+ –0.31; 9...Qc7 10.c3 Rd8 11.Qc2 Bg4= –0.25; 9...Qe7 10.0-0 a6 11.a4 ab5=+ –0.31; 9...a6 10.a4 ab5 11.ab5 Ra1= –0.25) 10.0-0 Qa5 11.c4 Nb6=+ –0.34) 9...b6 (9...a6!?= 10.Bc4 Nbd7 11.0-0 Nb6=+ –0.41; 9...a5 10.Be2 b6 11.0-0 Bb7= –0.16; 9...Qa5 10.Be2 Nbd7 11.c3 Nb6=+ –0.31; 9...Be6 10.Ng5 Bd7 11.Bc4 a6=+ –0.31; 9...Nbd7 10.Be2 Qa5 11.c3 Nb6=+ –0.31) 10.Bc4+= Bb7 (10...a5 11.0-0 Qe7= 0.09) 11.Qe2 h6 (11...a6= –0.03) 12.d3 a6 13.0-0 ab5 14.ab5 Nbd7 15.Ra8 Ba8 16.Nf5 Bc7 17.Ra1 Qb8 (17...Bb7 18.Ra7 Qb8 19.Ra4+-) 18.g4 Ng4? (better 18...Qd8+-) 19.Ng5 Ngf6 20.Ne7 Kh8 21.Nf7 Kh7 (21...Rf7 22.Bf7 Bd6 23.Nf5+-) 22.Qf3 Qe8 (22...Rf7 23.Bf7 Nf8+-) 23.Qf5 (23.Qf5 g6 24.Qg6) 1–0. Pierre – Kebab1, internet, 2019.

5.Nce2 e5 6.Nf3 Bd6 7.Ng3 Nf6 8.Bb2 Qa5 9.Nh4 Be6 (9...0-0 10.Nhf5 Rd8 11.Qf3 Be6=+ –0.44; 9...Qb4 10.Nhf5 Bf8 11.Qc1 Qa5=+ –0.28; 9...a6 10.Nhf5 Bf8 11.ba6 Na6=+ –0.34; 9...Qb6 10.Nhf5 0-0 11.Qf3 a6= –0.22) 10.Nhf5 Bf8 11.c3 Nbd7=+ –0.59.

5.Nce2 e5 6.Nf3 Bd6 7.Ng3 Nf6 8.Bb2 a6 9.Bc4 ab5 (9...0-0 10.a4 Nbd7 11.0-0 Nb6=+ –0.41; 9...Qa5 10.a4 0-0 11.c3 b6=+ –0.34; 9...Bd7 10.a4 0-0 11.0-0 Qe8= –0.25; 9...Nbd7 10.a4 0-0 11.0-0 Nb6=+ –0.41) 10.Bb5 Nc6 11.c4 0-0=+ –0.53.

5.Nce2 e5 6.Nf3 Bd6 7.Ng3 Nf6 8.Bc4 A) 8...0-0 9.0-0 a6 (9...Nbd7 10.Be2 a6 11.ba6 ba6=+ –0.28; 9...Qc7 10.d3 a6 11.ba6 Na6=+ –0.31; 9...Nfd7 10.Be2 Nb6 11.a4 Be6= –0.16; 9...Bd7 10.Rb1 Qa5 11.d3 a6= –0.09) 10.ba6 Na6 11.Rb1 Nc7=+ –0.31; B) 8...a6 9.ba6 Na6 (9...ba6 10.0-0 Nbd7 11.Rb1 Nb6= –0.25; 9...b6 10.Bb5 Bd7 11.a4 0-0= –0.19) 10.Rb1 0-0 11.0-0 Nc7=+ –0.31; C) 8...Nbd7 9.Qe2 0-0 (9...Nb6 10.Bb3 Bg4 11.a4 a6=+ –0.31; 9...Qc7 10.a4 Nb6 11.Ba2 a5=+ –0.41) 10.Bb3 Nb6 11.0-0 Bg4=+ –0.41.

5.Nce2 e5 6.Nf3 Bd6 7.Ng3 h5 8.Bc4 h4 9.Ne2 Bg4 (9...h3 10.d3 hg2 11.Rg1 Qf6=+ –0.34) 10.Neg1 Nd7 11.Be2 Be6=+ –0.59.

3.b5 Nf6

4.e5 Nd5 5.Ba3 d6=+ 6.c4 Nb6 7.Qh5 de5 8.Qe5 N8d7 9.Qe4 Nf6 10.Qe5 Qd4 11.Qc7?? Qa1-+ 12.Bc5 Qb1 13.Ke2 Qe4 14.Kd1 Bc5 15.Qc5 Qb1 16.Ke2 Ne4 17.Qe5 0-0 18.f3 Nf6 19.Nh3 Nc4 20.Qg5 Rd8 21.Kf2 Rd2 22.Kg3 Qa2 23.Rg1 Rd5 24.Qf4 Nh5 25.Kg4 Nf4 26.Nf4 Ne5 27.Kg3-+ Rd8 28.h4 b6 29.h5 Bb7 30.h6 g5 31.Nh5 Ng6 32.Nf6 Kh8 33.Rh1 Qb2 34.Rh3 Qf6 35.Bd3 0–1. blacksteelballs – RABALA, Live Game Caissa's Web, 2005.

4.e5 Nd5 5.c4 Nb6 6.f4 (6.Nf3 d5=) 6...d5 7.Na3 dc4 8.Nc4?? (better 8.Bb2=+) 8...Nc4-+ 9.Bc4 (9.Nf3 Nb6-+) 9...Qd4 10.Qc2 Qf4 (10...Qa1 11.Nf3 g5-+) 11.Nf3=+ Qg4 12.0-0 Be7 13.Bb2 Nd7 14.a4 b6 15.Rf2 (15.a5 Bb7=+) 15...Bb7 16.Raf1 (16.a5 Rd8=+) 16...0-0 17.Bd3 Qh5 18.Be4 Be4 19.Qe4 Qf5 (19...Qg6 20.Qc4 a6=+) 20.Qe2? (20.Qb7 Qd3 21.Nd4 Ne5 22.Ne6 fe6 23.Be5 Rf2 24.Qa8 Rf8 25.Rf8 Bf8 26.Bc3-/+ (26.Qa7?? Qb1 27.Kf2 Qf5 28.Ke2 Qe5 29.Kd1 Qd6-+)) 20...Qc2-/+ 21.Bc3 (21.d4 Qe2 22.Re2 a6-/+) 21...Qa4-+ 22.g3 (22.Ra1 Qg4-+) 22...Qg4 (22...a6 23.ba6 Qa6 24.Qe3-+) 23.Rg2 (23.Kg2 Rfd8-+) 23...Qg6 (23...c4 24.h3 Qh3 25.Qc4 Bc5 26.d4-+) 24.Nh4 Bh4 25.gh4 Qh6 26.Kh1 (26.h5 Kh8-+) 26...Kh8 (26...Qh4!? 27.Rg3-+) 27.h5 Rae8 (27...Rad8 28.d4 g6 29.d5-/+) 28.d3 g6 29.hg6 (29.Qf3 Rc8-/+) 29...hg6 (29...fg6!? 30.Ra1-+) 30.Bd2 Qh7 31.Rf3 (31.Bg5 Kg8-/+) 31...Kg7 (31...Ra8 32.Qf1 Kg8 33.Rh3 Qh3 34.Rg6 fg6 35.Qh3-/+) 32.Qe3 Rh8 33.Qg5 (33.Qf4 Ref8-/+) 33...Qh5-+ 34.Qh5 (34.Rgf2 Kg8 35.Rf7 Qg5 36.Bg5 Ne5 37.Ra7-/+) 34...Rh5 35.Rgf2 Rf8 36.Bc3 Kg8 (36...Ne5 37.Ra2 Kh6 38.Be5 Re5 39.Ra7-+) 37.Re2 (37.Re3 Ra8 38.Ra2 Kf8-+) 37...Rf5 (37...Ra8 38.d4-+) 38.Rf5 gf5 39.Rg2 Kh7 40.h4 (40.Ra2 Ra8-+) 40...Rg8 (better 40...Rd8-+) 41.Rf2? (better 41.Rg8 Kg8 42.Kg2-+) 41...Rg3 42.Rd2 Rh3 (better 42...Kh6!? 43.Kh2 f4 44.Rd1-+) 43.Kg2 Rh4 44.Kg3? (44.Ra2 c4 45.Ra7-+) 44...Rg4 (44...Ra4 45.Rh2 Kg8 46.Rc2-+) 45.Kf3 (45.Kf2 Ra4-+) 45...Kg6 (45...Ra4!? 46.Rh2 Kg7 47.Rg2 Kf8 48.Ke2 Ra2 49.Kf3-+) 46.Rh2 (46.Ra2 f6 47.Ra7 Ne5 48.Be5 fe5-+) 46...Kg7 (46...c4 47.dc4 Rc4 48.Rg2 Kh7 49.Bb2-+) 47.Ke3? (better 47.Ra2 Rh4 48.Ra7 Rh3 49.Ke2-+) 47...Rg1 (better 47...Ra4 48.d4-+) 48.d4 (48.Kf3-+) 48...Rg3 49.Kd2 cd4 50.Bd4 Rb3 51.Rg2 Kf8 52.Rg1 (52.Rh2 Rb5 53.Rh8 Kg7-+) 52...Rb5 0–1. Martinez,Laura Natalia (1690) – Rojas,Andrea Lizeth (1755), Superate Intercolegiados – Final Nacion, 2014. (=1.e4 c5 2.b4 e6 3.b5 Nf6)

3.c3 cb4=+

4.cb4 Bb4-/+ 5.Ba3 Qa5 6.Bb4=+ Qb4 =. amayfer (1820) – hypermode (2270), net–chess.com, 2009.

4.cb4 Bb4 5.Nc3 Nc6 6.Bc4 Nge7 7.Qf3?? 0-0 8.Nge2?? a6 (8...a6 9.Bb3 f5-/+) 0–1. Kraus,Andrej (1730) – Csoma,Robert (2000), remoteschach.de, 2009.

4.c4 Nc6 5.Nh3? (5.Nf3!?-/+) 5...Nf6 (5...Qf6 6.d4 Nd4 7.Bb2 Nf3 8.gf3 Qb2 9.Nd2-+) 6.d3 (6.Qf3 Bc5 7.Bb2 d6-+) 6...Bc5 (better is 6...Ne4 7.Be3 Qf6-+) 7.g4?? (7.Nd2 d5-/+) 7...d6 (better is 7...Bd4-+) 8.Bb2 e5 9.g5 Nd7 (9...Bg4 10.Qa4 Nh5 11.Nd2-+) 10.Qf3? (10.Nd2 h6 11.Qh5 Nf8-+) 10...Nd4 11.Qg3?? Nc2 12.Kd1 Na1 13.g6 hg6 14.Ng5 Qa5 15.Ke2 Qa2 16.Nd2 Qb2 17.Qf3 Nf6 18.Bg2 Bg4 19.Rb1 Bf3 20.Ngf3 Qa2 21.Ne1 Rh2 22.d4 Bd4 23.Nd3 Rg2 24.Rh1 Ne4 25.Rd1 Nd2 26.Rd2 Qc4 27.Kf3 Qd5 28.Ke2 Qe4 29.Kd1 Rg1 30.Ne1 Re1 (30...Qe1?!=) 0–1. Chernyy,Valentin – Lupascu,Matei Alexandru (1610), Varna ETSCC 4th, 2009. (=1.e4 c5 2.c3 e6 3.b4 cb4+=)

3.c4 cb4

4.a3 Qh4 5.Bd3 Qf6 -+.

4.d4 d5 5.Nd2 Nc6 6.Bb2 a6 -/+.

4.d4 d5 5.ed5 ed5 6.c5 Nc6 7.Be3 g6 8.Nd2 Bg7 9.Nb3 Nge7 10.Bb5 0-0 11.Ne2 Bg4 12.f3 Bd7 13.0-0 a5 14.a4 Re8 15.Bc6 (15.Bf4!?-/+) 15...Bc6 16.Ng3 Qd7 17.Nc1 Nf5 18.Nf5 Qf5 19.Bf2 Re7 20.Bg3 Rae8 (20...Qd7 21.Ra2-+) 21.Bd6 (21.Nb3!?-/+) 21...Re3-+ 22.g4 (22.Bc7 b3! 23.Nb3 Qd3 24.Qd3 Rd3-+) 22...Qe6 23.Nb3? (23.Bf4-+) 23...Rb3! 24.Qb3 Bd4 25.Kg2 Qe2 26.Kh3 Ba1 27.Ra1 Re3 28.Qd1 Rf3 29.Kh4 Qe3 0–1. Wulff,Jens Peter (1740) – Hellwig,Martin (1980), LM–ch Germany, 1996. (=1.e4 e6 2.c4 c5 3.b4 cb4)

4.d4 d5 5.ed5 ed5 6.Nf3 Bg4 (6...Nc6 7.h3-/+) 7.Qb3 (7.cd5 Qe7 8.Be2 Bf3 9.gf3 Nf6-/+) 7...Nf6 (7...Qe7 8.Qe3 Qe3 9.fe3 Bf3 10.gf3 dc4 11.Bc4-/+) 8.cd5 (8.Ne5 Nc6 9.Nc6 bc6-/+) 8...Bd6 (8...Bf3 9.gf3 Qd7 10.Bg5-/+) 9.Bb5 Nbd7 10.0-0 (10.Ne5 0-0 11.Bb2 Nb6-/+) 10...0-0 11.Re1 (11.Bg5 h6 12.Bf6 Nf6-+ (12...Qf6?! 13.Nbd2-/+)) 11...Qb6 12.Bd7 (12.Be2 Rac8 13.Nbd2 Rfe8-/+) 12...Bf3 (12...Nd7?! 13.Nbd2 Rae8 14.Rd1+=; 12...Bd7?! is clearly weaker 13.Bg5=) 13.Qf3? (better is 13.gf3 Qd4 14.Bh3-/+) 13...Nd7?? ruins a clearly superior position (better is 13...Qd4 and Black has reached his goal 14.Bg5 Qa1 (14...Nd7?! is much weaker 15.Nd2-/+) 15.Bf6 Qf6 (15...gf6?! 16.Qh5 Kg7 17.Bf5-+) 16.Qf6 gf6-+) 14.Be3 Rac8 15.Nd2 Nf6 16.Ne4 (16.Rac1 Rfe8+=) 16...Ne4 (16...Nd5 17.Bd2 f5+=) 17.Qe4+= Rfe8 Black threatens to win material: Re8xe4 18.Qg4 (18.Qf5 Qa5+=) 18...a5 (18...Rc2 19.Kh1 Qb5 20.Qh5-/+) 19.Rac1 Rc1 Black has a mate threat 20.Rc1 Qd8 (better is 20...Qb5 21.Rc8 b6=) 21.Bh6? (21.g3 Bf8 22.Qf3 Re7=) 21...Bf8+= 22.g3? (better is 22.Qg5+= would save the game) 22...Qd5-+ 23.Rc5 Re1 0–1. Siegel,Rainer – Vieten,Mario (1610), Leipzig VfB op, 2002. (=1.e4 e6 2.c4 c5 3.b4)

3.bc5 Qa5

4.c3 Bc5 5.d4 Be7 6.Qg4 Nf6 7.Qg7 Rg8 8.Qh6 Ne4 9.Qh7 Nf6 10.Qd3 Nc6 11.g3 d5 12.Nd2 Ne4 13.Ne2 f5 14.Nb3 Qa4 15.Bg2 (15.f3 Ng5+/-) 15...b6 16.0-0 (16.f3!? Nd6 17.Nf4+/-) 16...Ba6= 17.Qd1 Kd7?? (better is 17...Nd8=) 18.Be4+- fe4 (18...Be2 19.Nc5 (19.Qe2?! fe4 20.f3 ef3 21.Rf3 Raf8+=) 19...bc5 20.Qa4 Bf1 21.Bd5 (21.Kf1?! fe4 22.Ba3 Rab8+-) 21...ed5 22.Kf1+-) 19.Nc5!! bc5 (19...bc5 20.Qa4 Discovered attack; 19...Bc5 20.Qa4 Discovered attack) 20.Qa4 Be2 21.Re1 Bc4 22.Rb1 Rab8 23.Bf4 Bd6 24.Bd6 Kd6 25.dc5 Kc7 26.Rbd1 (26.h4 e5+-) 26...Bb5 (26...Rb2 27.Re4! Ra2 28.Rc4 Ra4 29.Ra4+-) 27.Qc2 (27.Qa3 Bc4+-) 27...Bd3 (27...Ne5 28.Kg2+-) 28.Qd2 (28.Rd3 ed3 29.Qd3 Rge8+-) 28...Rbf8 (28...Rgf8 29.Qh6 Rbe8 30.Qg7 Kc8 31.Rb1+-) 29.Qh6 Nd8 30.Qh7 Kb8 (30...Nf7 31.f4 Bc4 32.Rd4+-) 31.c6! e3 (31...Nc6 32.Qd7) 32.c7 Kc8 33.cd8Q Kd8 34.Qh4 Kd7 35.Re3 Bf5 36.c4 Rg4 37.Qh6 1–0. Augstein,Joerg – Mann,Guenter, Neubrandenburg op–B, 1999. (=1.e4 c5 2.b4 e6)

4.Nf3 Bc5 5.Be2 Nf6 6.e5 Bf2? (better is 6...Ne4!? 7.0-0 Nc6+=) 7.Kf2+- Ng4 8.Kf1 Ne5 9.Ne5 Qe5 10.d4 Qf6 11.Ke1 Nc6 12.Be3 0-0 13.Nc3 White prepares d5 13...e5 (13...d5 14.Rb1+/-) 14.d5 Nd4 15.Rf1 Qg6 (15...Qh4!? 16.Bf2 Qh2 17.Bd4 Qg3 18.Rf2 ed4 19.Qd4 b6+-) 16.Bd4+- ed4 17.Qd4 Qc2 18.Rf2 Qg6 19.Rd1 (19.d6 b6+-) 19...d6 20.Rd3 f5 21.Rg3 Qh6 22.Rf4 Bd7 23.Rh4 Qc1 24.Kf2 Rf7 25.Bh5 Re7+/- 26.Ne2 Qc2 27.Qf6 Rae8= 28.Rg7 Rg7 29.Be8 Be8 30.Qe6 Kf8 31.Qd6 Re7 32.Qh6 Kg8 33.Qg5 Rg7 34.Qd8 Kf7 35.Qd6 Bb5 36.Qe6 Kf8 37.d6 Qe2 38.Qe2 Be2 39.Ke2 Rg2 40.Ke3+= Rg7 41.Kf4 Ke8 42.Kf5 Kd7 43.Rh6 Kc6 44.h4 b5 45.h5 Rd7 46.Ke5 a5 47.Re6 b4 48.Re7 Rd6-/+ 49.Rh7 Rd2 50.h6 Ra2 51.Kd4 Rh2 52.Kc4 Rh4 53.Kb3 Rh3 54.Kb2? Kb5 55.Rb7 Ka4 56.h7 Rh2 57.Kc1 Kb3 58.Rg7 Rh1 59.Kd2 a4 60.Kd3 a3 0–1. Sokolovsky,V (2050) – Polonovsky,E (2165), 14th Master Open, Voronezh RUS, 2010. (=1.e4 c5 2.b4 e6)

3.bc5 b6

4.cb6+/- Qb6 5.d4 Bb7 6.f3 g6 7.Be3 Bg7. Chester,Sean – Mottershead,Richard, IECC, 2000.

4.d4 bc5 5.Nf3 cd4 6.c3 (6.Nd4 Nf6 7.Bd3 Bb7=) 6...dc3 7.Nc3 Nc6 8.Bd3 d6 9.0-0 Nf6 10.Bf4 a6 11.Qe2 Nd7 12.Rad1 Nde5 (better 12...Qf6!? 13.Be3 Be7=+) 13.Ne5+= de5 14.Bb5 Qc7 (14...Qb6 15.Qe3 Bc5 16.Bc6 Qc6=) 15.Bc6 (better 15.Be5 Qb6 16.Bd4+-) 15...Qc6=+ 16.Bd2 Be7 (16...Bb7 17.Qh5=+) 17.Qg4 Bf6 18.h4 (18.Rc1 0-0=) 18...h6 19.Rc1 Qd7 20.Rfd1 Qe7 (20...Bb7 21.Bh6 Qe7 22.Bg5=) 21.Be3 (21.Nd5 ed5 22.Rc8 Rc8 23.Qc8 Qd8 24.Qc6 Qd7 25.ed5 Bh4+=) 21...0-0 (21...Bb7 22.h5=+) 22.Na4 (22.Bh6 Bb7+=) 22...Rd8 23.Bc5 (23.Rd8!? Qd8 24.Bh6=) 23...Rd1=+ 24.Rd1 Qe8 25.Nb6 Rb8 26.Nc4 Bb7 27.Nd6 Qc6 28.Nb7 Qb7 29.Be3 Rd8 (29...h5 30.Qh5 Qe4 31.Qe2-/+) 30.Rd8=+ Bd8 31.Bh6 Bf6 32.Bg5 (32.h5 Qb1 33.Kh2 Kh7=+ (33...Qa2?? 34.Bg7 Bg7 35.h6+-)) 32...Qb1 33.Kh2 Bg5 34.hg5 (better 34.Qg5 Qe4 35.Kg3-/+) 34...g6 (34...Qa2 35.Qg3-/+) 35.Qh4?? (35.Qe2 a5=) 35...Qd3?? (35...Qa2!? 36.Qg3 Qb2-+) 36.Qg4 (better 36.f3!?=) 36...Qd2-/+ 37.a4? (better 37.Kg3-/+) 37...Qf2-+ 38.a5 Qf4 39.Qf4 ef4 40.Kg1 (40.g3 f3-+) 40...e5 (40...Kf8!? 41.Kf2 Ke7 42.Kf3-+) 41.Kf2 f6 42.Kf3?? (42.gf6 Kf7 Decoy) 42...fg5 (42...f5 43.g3 fg3 44.Kg3 f4 45.Kf2 Kf7-+) 43.g3?? (better 43.Kg4=+) 43...Kg7 44.gf4 gf4 45.Kg4 Kf6 46.Kf3 g5 47.Ke2 Kg6 48.Kd3 Kh6 49.Ke2 g4 50.Kd3 Kg5 51.Kc4 Kh4 52.Kd5 g3 53.Ke5 g2 (better 53...f3 54.Kd6-+) 54.Kf5 g1Q (54...f3 55.Kg6 g1Q 56.Kf6 f2 57.Kf7 f1Q 58.Ke7 Qc5 59.Ke8 Qc6 60.Ke7 Qff6) 55.e5 Qg3 56.e6 (56.Ke4 f3 57.Ke3 f2 58.Ke2 Qf4 59.Kd3 f1Q 60.Kc2 Q1c4 61.Kd1 Qfc1) 56...f3 57.Kf6 f2 58.Ke7 (58.Kf7 f1Q 59.Ke7 Qc7 60.Ke8 Qb5 61.Kf8 Qbb8) 58...f1Q 59.Kd7 Qgf4 (59...Qb5 60.Ke7 Qc7 61.Kf8 Qbb8) 60.e7 (60.Ke8 Qb5 61.Ke7 Qb7 62.Kd8 Qfb8) 60...Qe4 (60...Qb5 61.Kd8 Qfb8) 61.e8Q Qd4 (61...Qb5 62.Kd6 Qbe8 63.Kc5 Q8c6) 62.Ke7 (62.Kc8 Qfc4 63.Kb8 Qd6 64.Ka8 Qcd5 65.Qc6 Q5c6 66.Ka7 Qdc7) 62...Qfc4 (62...Qff6) 63.Kf8 (63.Qd8 Qe2 64.Kf7 Qd8 65.Kg7 Qd7 66.Kf6 Qee6) 63...Qe5 (63...Qf6 64.Qf7 Qff7) 64.Qf7?? (64.Qe5 Kg4=) 64...Kg3 (64...Qc8 65.Qe8 Qce8) 65.Qc4 (better 65.Qf3! Kh2 66.Qh1 Kh1=) 65...Qf5 66.Qf7 Qe5?? (66...Qa5 67.Qg6 Kf4 68.Qh6 Ke4 69.Qe6 Kd3 70.Qg6 Kc3 71.Qf6 Kb3 72.Qf7 Kc2 73.Qc4 Kb2 74.Qe2 Kc1 75.Qc4 Kb1 76.Qe4 Ka2 77.Qc2 Ka3 78.Qd3 Kb4 79.Qd4 Kb3 80.Qd3 Qc3 81.Qa6 Qh8 82.Kf7 Qh7 83.Ke8 Qg8 84.Ke7 Qg7 85.Ke8 Qg4=) 67.Qe7?? (better 67.Qg6 Kf4 68.Qh6 Kf5 69.Qa6 Qb8 70.Kf7 Qc7 71.Ke8+/-) 67…Qf4 (67...Qf4 68.Kg7 Qg4 69.Kh6 Qh4 70.Qh4 Kh4=) 0-1. elgranlucas (2255) - opperwezen (2830), lichess.org, 2017. (=1.e4 c5 2.b4 e6 3.bc5)

3.bc5 Bc5

4.Bb2 Nf6 5.Bd3 d6 6.Nf3 Nbd7 7.h3?? Qb6-+ 8.Bf6 Bf2 9.Ke2 Nf6 10.e5? de5 11.Ne5 Bg3 12.Nc4 Qf2 0–1. Herlant,Christophe – Latapie,Frederic (1830), Tournoi, 2008.

4.Bb2 Nf6 5.d4 Bb6 6.e5 Nd5 (6...Ba5 7.c3 Nd5 8.Qg4=) 7.c4+= Nf4 (7...Ba5 8.Nd2 Ne7 9.c5+=) 8.Qg4 (8.Qd2 Ng6+=) 8...Ng6 9.Bd3 (9.c5 Ba5 10.Bc3 Nc6+=) 9...d5 (9...d6 10.ed6 Qd6 11.Nf3+=) 10.Nf3= Nc6 (10...dc4 11.Bc4 Bd7 12.0-0+=) 11.0-0 (11.Nbd2 dc4 12.Nc4 Ba5 13.Nfd2 Bd2 14.Kd2 0-0+=) 11...Nce7 (11...Nb4!? 12.Bg6 hg6+=) 12.c5 Ba5 13.Nc3 (13.Bc3 0-0+-) 13...Bc3 (13...Bd7 14.Rab1+-) 14.Bc3 b6 (14...Qc7 15.Rab1+-) 15.Bb5 (better 15.Rab1!?+-) 15...Bd7+= 16.Bd3 0-0 (16...Bc8 17.Rab1 Qc7+-) 17.a4 (17.Rac1 bc5 18.dc5 Qc7+-) 17...bc5 18.dc5 Qc7 19.Bd4 Nc6 e5 draws heavy fire 20.Bg6 fg6 21.Rfe1 (better 21.Bc3!?+=) 21...Rf5 (better 21...h5!? 22.Qg3 Rf3 23.Qf3 Nd4-/+) 22.Rac1 1–0. Hilbert,Stephan J – Aragones,Inti (1800), FICGS, 2015. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Bb2 Nf6 5.e5 Nd5 6.Nf3 Nc6 7.Bc4 (7.Ba3!? Ba3 8.Na3=) 7...Bf2! 8.Kf1 (8.Kf2 Qb6 Double attack (8...Qb6 Decoy)) 8...Bc5 9.Bd5 ed5 10.Nc3 d4 11.Ne4 Qe7 12.Nc5 Qc5 13.Qe2 0-0 14.Qe4? (14.Qd3 d6-/+) 14...d6 (better 14...Qb5 15.Kf2 Qb2-+) 15.Nd4 Ne5 16.Nb3 Qb5 17.d3 Be6 18.c4 Qd7 19.Re1? (19.Be5 de5 20.Nc5 Qc7-+) 19...Rae8 (better 19...Bf5!? 20.Qd4 Bd3 21.Kg1 Qe6-+) 20.Be5 de5 21.Ke2 (21.Nc5 Qc8 22.Qe3 b6 23.Ne6 Re6-+) 21...Bg4 (21...f5 22.Qe3-+) 22.Kd2 (22.Kf2 b6-+) 22...Bf5 23.Qe3 (23.Qd5 Qa4 24.Qa5 Qc6-+) 23...e4 (23...Qa4!? 24.Kc3-+) 24.d4 Qa4 25.Kc3 (25.Rc1 Qa2 26.Rc2 Qa3-+) 25...Rc8 (25...b5 26.Kb2 Qc4 27.Rc1-+) 26.Kb2 (26.c5 b6 27.Kb2 Rfe8-+) 26...Rc4 27.Rc1 Rfc8 (27...b5 28.Rhd1-+) 28.Rc4 Rc4 29.Rc1 (29.g4 Bg6-+) 29...b6 (29...Rc1 30.Nc1 Qc6 31.Qf4-+) 30.g4 Bg4 (30...Rc1 31.Nc1 Qb5 32.Nb3-+) 31.Qe4 (better 31.Rc4 Qc4 32.Qe4 Qe2 33.Qe2 Be2 34.Kc3-+) 31...Bc8?? (better 31...Rc1 32.Nc1 h5-+) 32.Rc4+- Qc4 (32...Qd7 33.Qa8 g6 34.Qc8 Qc8 35.Rc8 Kg7+-) 33.Qe8 1-0. Alexr58 (2570) - Arifars17 (2670), Elite Bullet Arena, lichess.org, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.c3 Nc6 5.Nf3 Qc7 6.d4 Be7 7.Bd3 Nf6 8.Ng5 h6 9.Nf3 d6 10.0-0 e5 11.d5 Nb8 12.h3 Nbd7 13.Re1 Nc5 14.Bc2 Bd7 15.a4 Nh5 (better is 15...g5=) 16.Ne5+/- de5 17.Qh5 Bf6 18.Qe2 0-0 19.Be3 Qa5 20.c4 Rac8 21.Bd2 Qa6 22.a5 b5 23.cb5 Bb5 24.Qd1 Bd3 25.Bd3 Qd3 (25...Nd3 26.Qe2 Bh4 27.g3+/-) 26.Re3 (26.Qg4 Qd4 27.Ra3 Rb8+-) 26...Qd4+/- 27.Nc3 Bg5 28.Ne2 (28.Nb5 Be3 A) 29.Be3?! A1) worse is 29...Qe4 30.Nd6 (30.Na7?! Rc7=) 30...Qd3 31.Nc8 Rc8 32.Qd3 Nd3 33.Ba7+-; A2) 29...Qd1 30.Rd1 Ne4+=; B) 29.Nd4 Bd4 30.Be3 Ba1 31.Qa1 Ne4 32.Ba7+/-) 28...Qc4? (28...Qb2 29.Rb1 Qa2+=) 29.Rc1?? (better is 29.Rc3 Qa6 30.Bg5 hg5 31.Ng3+-) 29...Qa6= 30.Ra3 Bd2 31.Qd2 Ne4 32.Qe3 Rc1 33.Nc1 f5 34.Nd3 Qd6+= 35.Ra1 Qd5 36.f3 Ng3 37.Ne5 f4-+ 38.Ng6 Qd6 39.Qb3 Rf7 40.Qb1 Rf5?? 41.Qb3?? Kh7-+ 42.Rd1 Qg6 43.Qa2 Rf8 44.a6 Qb6 45.Kh2 Rd8 46.Rb1 Qd4 47.Qc2 Qd3 48.Qd3 Rd3 49.h4 Ra3 50.Kh3 Ra6 51.Rb4 Rf6 52.Kg4 h5 53.Kg5 Rf5 0–1. Riesgo Alba,Jose Luis – Naves Miranda,Baldomero, Asturias Primera op–B, 1998. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.c3 d5 5.d4 Bf8 6.e5 This push gains space 6...Nc6 7.Nf3 (7.Bd3 Qa5 8.Ne2 f6+=) 7...Nge7 (7...f6 8.Bf4+=) 8.Bg5 Black's piece can't move: f8 (8.Ba3 Nf5 9.Bf8 Kf8+=) 8...Qa5 (8...Rb8 9.Na3 Qa5 10.Qb3=) 9.Be2 (9.Bd3 Nf5 10.0-0 Qb6+=) 9...Bd7 (9...Nf5 10.g4 Nh6 11.Bh6 gh6 12.Qd3+=) 10.Qb3 White threatens to win material: Qb3xb7 (10.0-0 Nf5=) 10...Qc7 11.Na3 a6 Consolidates b5 12.0-0 b5 (12...Na5 13.Qc2+=) 13.Qb2 h6 14.Bd2 (14.Bf4 Rd8=) 14...Nc8 15.Nc2 Nb6 16.Ne3 Rc8 17.Rfc1 (17.Qc2 Na5+=) 17...Na4 Menacing 18.Qc2 Ba3 Black threatens to win material: Ba3xc1 19.Rf1 Be7 (19...Na5 20.Nd1+=) 20.Nd1 (20.Bd3 Qb7 21.a3 Nb6=) 20...Qb6 (20...Na5 21.Re1+=) 21.Qd3 0-0 22.Rb1 Na5 23.Qe3 (23.Ne1 b4 24.Bh6 gh6 25.Qg3 Kh8=) 23...Nc4 24.Bc4 Rc4 Here comes the goal–getter 25.Nb2 Nb2 26.Rb2 Rfc8 27.Rc2? (27.Ne1 Bg5 28.f4 Bd8+=) 27...b4 (better is 27...Ba3 28.Nh4 Qd8-+) 28.Rb1?? (better is 28.Rb2+= would bring relief) 28...Qc7-+ 29.Qf4 (29.Be1-+ is the last straw) 29...Ba4 30.Rcc1 bc3 31.Be3 Ba3 (31...c2 keeps an even firmer grip 32.Ra1 Ba3 33.Qg4-+) 32.Rf1 c2 (32...c2 33.Rbc1 Bc1 34.Bc1 Rb8-+) 0–1. Montovio,Andres – Castillo,Santiago (2115), Villa Ballester CAVB, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nc3 Nc6 5.Nf3 Nf6 6.e5 Ng4 7.d4 (better 7.Ne4 Bb4 8.Bb2=) 7...Nf2?? (better 7...Qa5 8.Qd3 Bb4+=) 8.Kf2+- Nd4 (8...Be7+-) 9.Be3 (better 9.Nd4 Qh4 10.Ke3 Qg5 11.Ke2 Qe5 12.Be3+-) 9...Nf3 10.Bc5 (10.Bc5 Ne5 11.Nb5+-; worse 10.Kf3 Be3 11.Ke3 Qg5 12.Kd4 f6 13.ef6 Qf6 14.Kd3 0-0+=; 10.gf3?! Qc7 11.Ne4 Be3 12.Ke3 Qe5+=) 1–0. Cirovic,Zeljko – Joubert,Hennie, FICGS, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.d4 Qa5 5.Bd2 Bb4 6.c3 Be7 7.c4 Bb4 8.a3 Bd2 9.Qd2 Qd2 10.Nd2 Nc6 11.Ngf3 d6 12.Bd3 e5 13.d5 Nce7 14.0-0 (14.c5 dc5 15.Ne5 f6 16.Bb5 Kf8+/-) 14...Nh6 (14...b6!?=) 15.c5!+/- 0-0? (15...dc5 16.Ne5 Deflection) 16.cd6+- Ng6 17.Nc4 (better is 17.Rfc1!?+-) 17...f6+/- 18.Rfc1 Nf7 19.Ra2 b5 20.Na5 Nd6 21.Rc6 Rd8 22.Rac2 Nf4 23.Bf1 (better is 23.R6c3!? f5 24.Ne5=) 23...Ne4-/+ 24.Bb5 Bd7 (24...Rb8 25.a4 Nd5 26.R6c4-/+) 25.Bc4 Rab8 26.Rc1 Kf8 (worse is 26...Bc6 27.dc6 Rd5 28.Nb7+=) 27.Rc7 (27.Re1 Bc6 28.dc6 Nd3=) 27...Rb2 (better is 27...Rbc8!? 28.Bf1 Rc7 29.Rc7 Bg4 30.Ra7 Bf3 31.gf3 Nd2-/+) 28.Nc6= Bc6 29.dc6 Nd2? (29...Nf2 30.Rf7 Ke8 31.Rg7 N2d3 32.Bd3 Nd3+/-) 30.Rf7+/- (30.Ra7? Nc4 31.c7 Rc8-+) 30...Ke8 31.c7 (31.Rg7 Nc4 32.c7 Rc8-/+; 31.Ra7? Nc4 32.Re1 Ne6-+) 31...Nc4?? (31...Nh3 32.gh3 Nf3 33.Kg2 Nh4 34.Kf1 Rc8 35.Rg7 Rb6+-) 32.cd8Q Kd8+/- 33.Rd1 ½–½. Jones,Eric – Hollingsworth,Jim, Red River Shoot–Out, Davis USA, 2010. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.d4 Qa5 5.Bd2 Bb4 6.c3 Be7 7.Bd3 d6 8.Ne2 Nd7 9.0-0 Ngf6 10.h3 a6 11.Be3 b5 12.Nd2 Qc7 13.Rc1 Bb7 14.f4 Rc8 15.Qe1 Qd8 16.Qg3 Nh5 17.Qf3 g6 18.g4 Ng7= 19.Qg3 f5=+ 20.Bf2 Nf6 21.e5 de5 22.fe5 Qd5 23.Kh2 g5 24.Be3 f4 25.Bf4+/- Nf5? 26.Bf5 ef5 27.ef6 h5?? 28.gf5 gf4 29.Nf4 Qa2 30.Qe3 Rc7 31.Rce1 Qa3 32.fe7 Rc3 33.Qe5 Rh3 34.Nh3 (34.Nh3 Qh3 35.Kh3 Rg8 36.Qb8 Bc8 37.Qc8 Kf7 38.e8Q Re8 39.Qe8 Kg7 40.Re7 Kf6 41.Ne4) 1–0. Koltanowski,George – Milesi,C, simul blind, 1937.

4.d4 Bd6 5.Nf3 Nc6 6.c3 Nge7 7.Bd3 0-0 8.e5+/- Bc7? 9.Bh7!+- Kh7 10.Ng5 Kg6 11.h4 Ne5 12.h5 Kf5 13.g4! Ng4 14.Qf3 (14.Qf3 Bf4 15.Qf4) 1–0. Koltanowski,George – NN, simul blind, 1946.

4.d4 Qf6?? 5.c3 Bb6 6.Nf3 Qd8 7.Bd3 Ne7 8.0-0 0-0 9.Be3 d6 10.Nbd2 Nbc6 11.a3 e5 12.Bc4 (12.Nc4 Bc7+=) 12...Na5 (12...d5 13.ed5 Nd5 14.Qc2= (worse is 14.Ne5 Ne5 15.Bd5 Qd5 16.de5 Be3 17.fe3 Qe5+=)) 13.Ba2 Qc7 14.Rc1 Ng6 15.Kh1 Bg4+= 16.Qe1 Nc6 17.d5 Nce7+= 18.Bb6 ab6-/+ 19.Nb1 Bf3 20.gf3 Nf4 21.Qe3 f5 22.c4 Rf6 23.Nd2 Rh6 24.Bb1 Rf8 25.Rg1 Qd7 26.ef5 Nf5 27.Bf5 Qf5 28.Rg3 Qh5 29.h3?? Nh3-+ 30.Kg2 Nf4 31.Kf1 Qh1 32.Rg1 Qh3 33.Ke1 Ng2 34.Rg2 Qg2 35.Ke2 Rhf6 36.Rb1 h5 37.Rb6 h4 38.Rb7 h3 39.Ne4 Rf3 40.Qa7 h2 41.Rb1 h1Q 42.Rh1 Qh1 43.a4 Ra3 44.Nd2 Qh5 45.f3 Qh2 46.Qf2-+ Qf2 47.Kf2 Ra4 48.Ke3 Rf4 49.Kd3 Ra3 50.Kc2 Rff3 (50...Rff3 51.Nf3 Rf3-+) 0–1. Zuazua Iglesias – Castelao Rodriguez, Asturias Primera op–B, 1998. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5)

4.d4 Qf6?? 5.e5+- Bb4 6.c3 Bc3 7.Nc3 Qd8 8.Nb5 Nc6 9.Nd6 Ke7 10.Ba3 Qa5+/- 11.Qd2 Qa3 12.Nf3 Qa5 13.Rb1 Qd2 14.Kd2 b6 15.Ng5 Nh6= 16.f4 Nd4 17.Bd3 Ndf5 18.Nge4 Nd6 19.Nd6 Ng4 20.Ke2 f6 21.h3 fe5 22.Nc8 Rac8 23.hg4 ef4 24.Rh7 Rh7 25.Bh7 Rc3 26.Bd3 Ra3 27.Rb2 Kf6 ½–½. Morales,Marcos – Amato,Leonel, XV PRO AM Open (3), 2008.

4.d4 Bf8 5.c3 Ne7 6.a4 f6 7.Bd3 g6 (7...Nbc6 8.Nf3+=) 8.Nf3+/- Bg7 9.Ba3 0-0 (9...d5 10.ed5 ed5 11.0-0+/-) 10.h4 (10.Bd6 Nbc6+/-) 10...Rf7 (10...d5 11.h5+/-) 11.h5 g5 (11...Nbc6 12.Nbd2 d5 13.Qc2+/-) 12.e5 (12.h6 Bf8 13.e5 Nd5 14.Bf8 Qf8+/-) 12...h6 (12...Nd5 13.h6 Bf8 14.Qc2+/-) 13.Nbd2+- f5 (better 13...Nbc6!? 14.ef6 Bf6+/-) 14.Ng5 hg5 15.h6 Bf8? (15...g4 16.hg7 Rg7 17.Nc4+-) 16.Qh5 Kh7 (16...Qe8 17.Nf3 Nbc6 18.Ng5 Nd8+-) 17.Qf7 Kh8 18.Qf6 Kh7 19.Nf3 Nbc6 (19...g4 20.Ng5 Kg8 21.h7) 20.Ng5 Kg8 21.h7 1-0. Pereira – Patzer, internet, 2021. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.d4 Bf8 5.Bd3 Nc6 6.Nf3 d6 7.Nbd2 g6 8.Ba3 Bg7? (better is 8...Nf6!?+=) 9.Nc4+- Bf8 10.0-0 b5 11.Ne3 a6 12.d5 Nb8 (12...Ne5 13.Ne5 de5 14.Bb2+-) 13.c4 Bd7 14.de6 fe6 15.e5 Qb6 (15...Bg7 16.Be4 Nc6 17.Qd6+- (17.ed6?! Nh6+-)) 16.Re1 b4 17.Bb2 Bg7 18.Rb1 a5 (18...Nh6 19.Bd4 Qa5 20.ed6 Bd4 21.Nd4+-) 19.ed6 Bb2 20.Rb2 Nf6 (20...Nh6 21.c5! Qc5+-) 21.Nd5 Nd5 22.cd5 0-0 23.de6 Bc6 (23...Qd6 24.ed7 Qd7 25.Ng5+-) 24.e7 Re8 (24...Rc8 25.Ne5 Be8 26.Be4+-) 25.Bc4 Kg7 26.Nd4 Bd7 27.Ne6 Be6 28.Be6 Nc6 29.Rd2 Rab8 (29...b3 30.ab3 Ne7 31.Qa1 Kh6 32.Rd3+-) 30.Qf3 (better is 30.Qa1 Qd4 31.Rd4 b3 32.Rb4 b2 33.Qb2 Nd4 34.Qd4 Kh6 35.Qf4 g5 36.Qf6 Kh5 37.Bf7) 30...Nd4 (30...Rf8 31.ef8Q Rf8+-) 31.Qf7 Kh6 32.Qf4 g5 (32...Kg7 33.Qe5 Kh6 34.Re3 Nf5 35.Rh3 Kg5 36.Rh7 Rb7 37.h4 Kg4 38.Qe4) 33.Qf6 (33.Qf6 Kh5 34.g4 Kh4 35.Qh6) 1–0. Hansen,Li (1650) – Gulliksen,Leif, Fagernes NOR, Clubs Ch, 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nf3 Nc6 5.d4 Qa5 6.Bd2 Bb4 7.c3 Be7 8.Bd3 (8.c4 Qc7+=) 8...Qc7 (8...d5 9.e5+=) 9.e5 (9.c4 d5 10.cd5 ed5 11.ed5 Nb4 12.Bb5 Bd7 13.Bd7 Qd7+-) 9...d5 10.0-0 Bd7 11.Bg5 Bg5 (11...Rc8 12.Be7 Nge7 13.Na3+=) 12.Ng5+- Nge7 (12...Rc8 13.Nh7 Nh6 14.Qf3+-) 13.Qf3 (13.Bh7?! g6=) 13...0-0?? (better 13...Nd8 14.Nh7 Rc8+-) 14.Bh7 Kh8 15.Qh3 g6 16.Bg6 Kg7 17.Qh7 1–0. Goldmund,Heike – Neil,Charlie, FICGS, 2015. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nf3 Nc6 5.d4 Bb6 6.Ba3 Nf6 7.e5 Nd5 8.Bc4 Ba5 9.Nbd2 Bc3 10.Rb1 Nd4 11.Nd4 Bd4 12.Bd6?? Qg5?? 13.Bd5+= ed5 14.0-0 Bc3 15.Nf3 Qf4 16.Qd5 a5 17.Rb3 Bb4 18.Rd1 Ra6 19.Bb4 ab4 20.Nd4 f6? 21.Rf3 Qg5 22.Nb5 Kd8 23.Nd6 Rd6 24.Qd6 Qe5 25.Qb4 Re8 26.Re3 Qc7 27.Re8 Ke8 28.Re1 Kf7 29.Re7 Kg8 30.Qb3 Kf8 31.Qf7 1–0. Cazzola,P – Guidorzi,C, Asiag tt (2), 1995.

4.Nf3 Nc6 5.d4 Bb6 6.Be3 Nf6= 7.c4 0-0 8.Nc3 Ba5-/+ 9.Qc2 d5 10.e5 Bc3 11.Qc3+= Nd7 12.cd5 ed5+= 13.Bg5 Qa5 14.Qa5+/- Na5 15.Bb5 Nb6? 16.Be7+- Bd7 17.Bd7 Nd7 18.Bf8 Kf8 19.0-0 Nc4 20.Rab1 b6 21.Rb5 1–0. chessleon (2040) – rar (1955), net–chess.com, 2008.

4.Nf3 d5 5.Bb5 Nc6 6.0-0 (better is 6.ed5!? ed5 7.0-0=) 6...de4-/+ 7.Ne5 Qc7 8.d4 ed3 9.Nd3 Bd6 10.Qg4 Bh2 11.Kh1 Be5 12.c3 (12.Bf4!? h5 13.Qg5 Bf4 14.Qg7-/+) 12...Bd7 13.Na3 (13.Ne5 Qe5 14.Bd3 Nf6-+) 13...Nf6 14.Qe2 (14.Qg7 Rg8 15.Qh6 Rg6-+) 14...Bc3 15.Bf4 Qa5 (better is 15...Nd4!? 16.Qd1 Qd8 17.Bd7 Nd7 18.Rc1-+) 16.Nc4 Nd4 17.Qe5? (better is 17.Qe3 Qd8 18.Bd7 Qd7 19.Nde5-/+) 17...Nb5 (17...Qb5 18.Nd6 Kd8 19.Nb5 Nb5 20.Qg5+/-; 17...Bb5?! 18.Na5 Bd3 19.Nb7-/+) 18.Qc5 (18.Na5 Be5 19.Be5-+) 18...Qd8 19.Rac1 (19.Nd6 Nd6 20.Qc3 Nf5-+) 19...Bc6 (better is 19...Rc8 20.Qg5 Rc4 21.Ne5 Rf4 22.Qf4-+) 20.a4 (20.Nd6 Nd6 21.Qc3 Rc8-+) 20...Qd5 (better is 20...Qd3 21.f3 Nd7 22.Nd6 Nd6 23.Qd6 Qd6 24.Bd6 Bd4-+) 21.Qd5 Bd5 (worse is 21...ed5 22.ab5 dc4 23.bc6 bc6 24.Rc3 cd3 25.Rd3-+; 21...Nd5?! 22.ab5 Bd7 23.Be5 Be5 24.Nde5-+) 22.ab5 Bc4 23.Rc3 Bb5 24.Rb1 Nd5 25.Rb5 Nc3 26.Rb7 0-0 27.Be5 Nd5 28.Nc5 a5 29.Bd6 Rfe8 1–0. Ippolitti,Horacio – De la Vega,P, Buenos Aires GP I, 1992. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nf3 d5 5.e5 Nc6 6.d4 Bb6 7.c3 Nge7 8.Bg5 Bd7 9.Bd3 Rc8 10.Na3 a6 11.0-0 Ba7 12.Nc2 Na5 13.Bd2 Nc4 14.Bc4 Rc4 15.Rb1 Qc8 16.Ne3 Rc7 17.Qb3 0-0 18.Rfc1 Nc6 19.Ne1 Na5 20.Qb4 b6 21.f4 Nc4 22.Nc4 Rc4 23.Qd6 b5 24.Nf3 Qc6 25.Qe7 Bb6 26.Qh4 Ba5 27.Qe1 Rc8 28.Rb3 Bb6 29.Rcb1 Ba5 30.Rc1 Ra4 31.Rb2 Ra3 32.Rbc2 Qc4 33.Qf1 Qf1 34.Kf1 Ra4 35.Ne1 Rac4 36.g3 Bd8 37.Nd3 Be7 38.Nb2 R4c7 39.Nd3 a5 40.Ne1 Ba3-+ 41.Rb1 b4! 42.Bc1 Ba4 43.Rf2 Bc1 44.Rc1 Rc3 45.Rb1 Rc1 46.Rc1 Rc1 47.Rd2 Bb5 48.Kf2 Bc4 49.Nc2 b3 50.ab3 Bb3 51.Ne3 a4 52.Rb2 g6 53.Ke2 a3 54.Rb3 a2 55.Ra3 a1Q 56.Ra1 Ra1 57.Kf3 Ra4 58.g4 Rd4 59.h4 Kf8 60.f5 gf5 61.gf5 Rh4 0–1. Antipova,Anastasia – Vasilevich,Irina, RUS–ch U12 Girls (7), 1997.

4.Nf3 Ne7 5.d4 White threatens to win material: d4xc5 5...Bb6 6.Bd3 (6.e5 d6 7.Bf4 de5 8.Be5 Nec6=) 6...d5 (6...d6 7.a4=) 7.0-0 Bd7 (7...h6 8.ed5 Nd5 9.Ne5+=) 8.e5 Black has a cramped position (8.ed5 ed5 9.Re1 0-0+=) 8...Nbc6 9.c3 Prevents intrusion on b4 9...Qc7 (9...Rc8 10.Be2=) 10.Ba3 Nc8?? (10...Qd8 11.h3+=) 11.Nbd2?? letting the wind out of his own sails (better is 11.Ng5 White clearly has the better chances 11...Ne5 12.de5 Qe5 13.Qh5+-) 11...Na5 12.Rc1 Nc4? (better is 12...Qd8= would keep Black alive) 13.Bc4+- dc4 14.Ne4 (14.Ng5!? h5 15.Nc4 Qc6 (15...Qc4?? 16.Qf3+-) 16.Nd6 Nd6 17.Bd6 Ba5+-) 14...Bc6+/- 15.Nfg5 (15.Nfd2 h5+/-) 15...h6? (better is 15...h5!?+= is worthy of consideration) 16.Qh5+/- Qd7?? terrible, but the game is lost in any case (better is 16...Bd5 17.Nd6 Nd6 18.ed6 Qd7 19.Nf7 0-0+-) 17.Bd6 (better is 17.d5 it becomes clear that White will call all the shots 17...Bd5 18.Rfd1+-) 17...Rg8= 18.Ba3 hg5 (18...a5 19.Rb1 Ba7 20.Rfe1+=) 19.Qh7 White has a mate threat 19...Ne7 20.Nd6 A beautiful square! 20...Kf8? (20...Kd8 21.Nf7 Ke8 22.Qh5+=) 21.f4+/- g4?? cause more grief (21...Bc7 22.fg5 Bd6 23.Bd6 Qe8+-) 22.f5+- ef5 23.Rf5 Nf5 (23...Bd5 24.Rcf1! Mate threat 24...Qe6 25.Rf7 Qf7 26.Nf7 Ke8+-) 24.Nf5 (24.Nf5 Qd6 25.Bd6 Ke8 26.Qg8 Kd7 27.Qf7 Kd8 28.e6 a6 29.Qe7 Kc8 30.Qf8 Be8 31.Qe8 Bd8 32.Qd7) 1–0. SJS – Casimiro,Antonio, Itaji tt Itajai, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nf3 Nf6 5.d4+= Bb4 6.c3 Ba5 7.e5 Nd5 8.Bb2 Qc7 9.Qd2 0-0 10.Bd3+= d6 11.0-0 de5= 12.de5 Nc6 13.Qe2?? Nf4-+ 14.Qe4 Nd3 15.Qd3 Rd8 16.Qe3 Bb6 17.Qf4 Ne7 18.Nbd2 Ng6-/+ 19.Qg3 Bd7 20.Ne4 Bb5 21.Rfe1=+ Bc6 22.Nd6 Ne5! 23.Qe5 Bf3?? 24.c4+- f6 25.Qe6 Kf8 26.Ba3 (26.Ba3 Bc5 27.Bc5+-) 1–0. mberlin (2190) – hypermode (2270), net–chess.com, 2009.

4.Nf3 Nf6 5.d4 Bb6 6.Bd3 d6 7.0-0 Nc6 8.c3 0-0 9.Nbd2 Bc7 (9...e5 10.Nc4 ed4 11.Nb6 ab6 12.cd4=) 10.Qc2 e5 11.Ba3 Re8 12.Rfe1 a6 13.d5 (13.h3 h6+=) 13...Ne7 14.c4 b6 15.Nf1 Ng6 16.g3 Bd7 (16...Bh3 17.Ne3=) 17.Ne3+= Ne7 18.Ne5 (better 18.Rab1!?+=) 18...de5=+ 19.d6 Bd6 20.Bd6 Nc6 21.Qd1 Nd4 22.Ba3 (22.c5!?-/+) 22...Ba4!-+ 23.Nc2 (23.Qa4 Nf3 Double attack) 23...Rc8 (23...Ra7 24.Bb2 Rd7 25.Bd4 Rd4 26.Re3-+) 24.Bb2 (24.Rc1-+) 24...Bc2 (better 24...b5!? 25.c5 Rc5 26.Bd4 ed4-+) 25.Bc2=+ a5 (25...Rc4 26.Bd3 Rc7 27.Ba6=+) 26.Ba4= Re6 (26...Re7 27.Qd3 Qc7 28.Rac1=) 27.Rc1 (27.f4 Nd7 (worse 27...Rc4 28.Bb3 Rb4 29.Bc3+-) 28.Bd4 ed4 29.Qd4 Nc5 30.Qd8 Rd8+=) 27...Qd6 (27...Qe7 28.Kg2=+) 28.Kg2 (28.f4 Rd8 29.Bd4 Qd4 30.Qd4 Rd4=) 28...h6 29.f4 Rd8 30.fe5 (30.f5 Re7=+) 30...Qe5-/+ 31.Qd3 Red6 (31...Ne4?! 32.Rcd1 Qb8 33.Re4=) 32.Rcd1 (32.Bc3 Nd7 33.Bd7 R6d7-/+) 32...Ng4 33.h3 Nf6 (33...Nf3 34.Qf3 Qb2 35.Re2-/+) 34.g4 (34.Qe3 Nf5 35.Be5 Ne3 36.Re3 Rd1 37.Bd1 Rd1 38.Bf6 gf6=) 34...h5 (better 34...Nf3! 35.Qf3 Qb2 36.Re2 Rd2 37.Red2 Rd2 38.Rd2 Qd2 39.Qf2 Qb4-/+) 35.Qg3= Qg3 36.Kg3 hg4 (36...h4 37.Kf2 Ne6 38.Bf6 gf6 39.Ke3=) 37.hg4 (37.e5 Nf5 38.Kf4 Rd2 39.Rd2 Rd2 40.ef6 Rf2 41.Kg5 gh3+=) 37...Ne6= 38.Bf6 (38.Rd5 Nd5 39.ed5 Nc5=) 38...gf6 (38...Rd3 39.Rd3 Rd3 40.Kf2=) 39.Rd5= Nc5 (39...Nc7 40.Rd6 Rd6 41.Kf2=) 40.Bc2 Na6 (better 40...Kf8!?=) 41.Red1+- Rd5 42.cd5 (42.ed5 Nb4 43.Bb1 Kf8+-) 42...Nb4 (42...Kf8 43.Kf4+=) 43.Bb1 Rd6 (43...Na6 44.Kf4+-) 44.Rc1 (44.Kf4 Nc6+-) 44...Kg7 (44...Kf8 45.Rc8 Ke7 46.Kf4+-) 45.Kf4 Na6 46.Rc6 (46.Rc8 Nc5+-) 46...Rc6 47.dc6 Nc7 48.e5 Ne6 49.Ke4 Nc7 50.Kd4 a4? (better 50...fe5 51.Ke5 Ne8+-) 51.a3+- Nb5 52.Kd5 (better 52.Ke4+-) 52...fe5? (52...Nc7 53.Ke4 Kg6+-) 53.Ke5 Kf8 (53...Nc7 54.Kd6 Nb5 55.Ke7+-) 54.Bd3 Nc7 (54...Na7 55.c7 Nc6 56.Kd5 Na7+-) 55.Kd6 Ne8 56.Kd7 Nf6 57.Kd8 Nd5 58.c7 Nc7 1–0. Turikov,Viktor (2205) – Krupa,Miroslav (1805), GM Algimantas Butnorius, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Nf3 Nf6 5.d4 Be7 6.e5 Nd5 7.Bd3 d6 8.a3 de5 9.Ne5 Nc6 10.Nc6 bc6 11.Qf3 0-0 12.0-0 Nf6 13.Qc6 Bd7 14.Qf3 Rc8 15.Rd1 Bc6 16.Qh3 g6 (16...Be4 17.Be4 Ne4 18.Qd3+=) 17.Be3 Nd5 18.Bh6 Re8 19.c4 Nb6 20.Nc3 (20.Be3 Bd7+=) 20...Bf6 (20...Qd4 21.Bg6 Qc4+=) 21.Be4 White intends d5 (21.Ne2!?+=) 21...Be4 22.Ne4 Nc4 23.d5 (better 23.Rac1!?=) 23...Ba1 24.Ra1 ed5 (24...Qd5?? 25.Nf6 Kh8 26.Nd5 ed5 27.Qf3+-) 25.Bg5 de4 (25...Re4 26.Bd8 Rd8 27.Kf1=+) 26.Bd8= Red8 27.Qg4 f5 28.Qf4 Nb2 (28...Rd4 29.g4 fg4 30.Rb1=) 29.h4 (29.Qe5 Nd3 30.Qe6 Kh8=) 29...Nd3=+ 30.Qg5 Rd6 (30...Rd7 31.Qf6 Rcd8 32.Rb1=) 31.h5 (better 31.Qe7 Rdc6 32.Qa7+=) 31...Kg7?? (31...Rc7 32.Rb1 Kg7 33.f3=+) 32.Rb1 (better 32.Qe7 Kh6 33.Qd6+-) 32...Rc7=+ 33.Rb8 f4?? (33...h6 34.Qe3 f4-+) 34.Qb5?? (better 34.h6!? Kf7 35.Rh8+-) 34...Rcd7?? (34...Kh6 35.g3 Rc1 36.Kh2 f3=+ (36...gh5?! 37.Qf5 fg3 38.Kg2=)) 35.Qg5 (35.Rb7 Nc5 36.Rd7 Nd7+/-) 35...e3 (better 35...Rd5!? 36.Qg4 Rc7=+) 36.h6+/- Kf7 37.fe3 fe3 (37...Rd5 38.Qg4 fe3 39.Qf3 Rf5 40.Qe3 Re5 41.Qf3 Rf5+-) 38.Qe3+- Re6?? (38...Re7 39.Qf3 Ke6 40.Qe4 Kf7+-) 39.Qf3 Rf6 40.Qa8 (better 40.Rf8 Kf8 41.Qf6 Kg8 42.Qe6 Rf7 43.Qc8 Rf8+-) 40...Ke6?? (40...Ne5 41.Rh8 Ke6+/-) 41.Re8 (better 41.Qe4!? Kd6 42.Qd3 Ke7 43.Qe3 Re6 44.Qg5 Kf7+-) 41...Kf5 42.Qe4 (better 42.Qf3!? Nf4 43.g3 Rd4 44.g4 Kg5 45.Re5 Kh6 46.g5 Kg7 47.gf6 Kf6+-) 42...Kg5 43.Qe3 Kh5 (43...Nf4 44.g3 Kh6 45.gf4+-) 44.Re4 (better 44.Qh3 Kg5 45.Qd7+-) 44...Nf4 45.Rf4 Rd1 (45...Rf4 46.Qf4 Rd3 47.g3+-) 46.Kh2 Rf4 47.Qf4 Rd5 48.Qf3 Kh6 49.Qd5 Kg7 50.g4 Kf6 51.Kg3 Ke7 52.Qc6 (52.Qb7 Kf8 53.Qh7 g5 54.Qa7 Ke8 55.a4 Kf8 56.Qc5 Kg7 57.a5 Kg6 58.Qf5 Kh6 59.a6 Kg7 60.a7 Kh6 61.a8Q Kg7 62.Qaf8) 52...g5 53.Kf3 (53.Qc7!? Kf6+-) 53...Kf7 54.Ke4 Ke7 (54...Kf8 55.Kf5 Kg8 56.Kf6 h6 57.Qd7 h5 58.Qg7) 55.Kf5 Kf7 (55...a6 56.Qc7 Ke8 57.Ke6 h5 58.Qe7) 56.Qc7 Ke8 (56...Kf8 57.Kf6 h5 58.Qd8) 57.Kf6 Kf8 (57...h5 58.Qe7) 58.Qc8 (58.Qd8) 1-0. opperwezen (2750) - Azzaro25 (2630), Lichess Titled Arena, lichess.org, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.Qg4?? Qf6-+ 5.Qg3 Qa1 6.Qc7 (6.Ne2-+) 6...Nc6 (6...Qb1?! 7.Qc8 Ke7 8.Qc5 d6 9.Qa3-+) 7.Bc4 (7.Ne2 Qb1 8.Qg3 Kf8-+) 7...Qd4 (better is 7...Qb1 8.Ne2 Qc2 9.Bb5-+) 8.Qg3 Qe4 (8...Qc4 9.Nc3-+) 9.Ne2 (9.Be2 Qc2 10.Qc3 Qa2 11.Qc5 Qb1-+) 9...Bf2! 10.Kf2 Qf5 11.Ke1 Qe5 12.Qa3 Nge7 13.Bb2 Qg5 14.h4 Qg4 15.Qc3 f6 16.d4 d5 17.Bd3 f5 18.Nd2 0-0 19.Ba3 Qg2 20.Rg1 Qh2 21.Nf3 Qc7 22.Qd2 h6! 23.Qh6 Kf7?? 24.Rg7-/+ Ke8 25.Bb5?? Qa5-+ 26.Kf2 Qb5 27.Nf4?? Qa4-+ 28.Be7 Qc2 29.Kg3 Ne7 30.Ne6 f4! 31.Kg4 Qf5 0–1. Schmit,Jean Claude – Canon,Patrick (1700), Luxembourg–ch, 1999. (=1.e4 c5 2.b4 e6 3.bc5 Bc5)

4.d4 Bb4

5.c3 Bf8 6.Bd3 d5 7.ed5 Qd5 8.Nf3 Nf6 9.0-0 Be7 10.c4 Qa5 11.Bd2 Qc7 12.Nc3 Bd7 13.Qb3 b6 14.Nb5 Bb5 15.Qb5 Qc6 16.a4 0-0 17.Ne5 Qb5 18.ab5 Nbd7? (better is 18...Rd8+/-) 19.Nd7+- Nd7 20.Be4 Rad8 21.Ra7 Nf6 22.Bc6 (22.Re7?! Ne4 23.Be3 Nd6+/-) 22...Rd4 23.Be3 (23.Re7?! Rd2 24.Rb7 Ng4+=) 23...Bc5 24.Bd4 Bd4 25.h3 h6 26.Rd1 Bc5 27.g3 h5 28.Kg2 g6 (28...Kh7 29.Kf3+-) 29.f4 Kg7 30.Kf3 Ng8 31.g4 hg4 32.hg4 Nh6 33.Rdd7 Ng8 (33...Kg8+-) 34.g5 Bg1 35.Rdb7 Bc5 36.Be8 1–0. Grott,Peter – Suermann,Uwe, DESC, 2000. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb4)

5.Bd2 Bd2 6.Nd2 Ne7 7.Ngf3 0-0 8.Bd3 Nbc6 9.e5 d5 10.Bh7 Kh7 11.Ng5 Kg6 12.Qg4 f5 13.Qg3 f4 14.Qg4 Qe8 15.Rb1 Kh6 16.Rb3 f3 17.Rf3 Rf3 18.Ndf3 Bd7 19.Qf4 Ng6 20.Qd2 Qc8 21.h4 Nge7 22.h5 Be8?? 23.Ne6+- Kh7 24.Nfg5 Kg8 25.Qd3 g6 26.hg6 Ng6 27.Rh8!! (27.Rh8 Kh8 28.Qh3 Nh4 29.Qh4 Bh5 30.Qh5 Kg8 31.Qh7) 1–0. Scacco,Mauro (2055) – Mishnaevsky,Gideon (2285), IECG, 1999.

5.Bd2 Qe7 6.Bb4 Qb4 7.Qd2 Nc6 8.Qb4 Nb4 9.Na3 Nf6 10.c3 Nc6 11.Bd3 d5 12.e5 Nd7 13.Nb5 Ke7 14.Nd6 (14.f4 f6+/-) 14...a6 (14...f6 15.f4=) 15.a4 (15.f4 f6+/-) 15...Rb8 (15...f6 16.f4 g5 17.Nc8 Rac8 18.ef6 Kf6 19.fg5 Kg5 20.Rb1+=) 16.Rb1 (16.f4 f6+/-) 16...f6+= 17.f4 fe5 18.fe5 h6? (better is 18...Nde5!? 19.de5 Ne5 20.Nc8 Rhc8+=) 19.Nf3+/- Rf8 20.0-0 g5 21.h4 g4 22.Nh2 h5 (better is 22...Rf1!? 23.Nf1 a5+/-) 23.Rf8+- Kf8 24.Rf1 (24.Nc8?! Rc8 25.Rb7 Ncb8+-) 24...Kg7 25.Rf7 Kg8 26.Bg6 (better is 26.Bh7 Kh8 27.Bc2 Kg8+-) 26...Nb6?? (better is 26...Nde5 27.de5 Ne5 28.Bh7 Kh8+-) 27.Bh5 Na4 (27...Nd8 28.Rc7 a5 29.Ng4 Kf8+-) 28.Ng4 Nc3 (28...Kh8 29.Nf6 Nc3 30.Rh7) 29.Nf6 Kh8 30.Rh7 1–0. Nolte,M – De Jong,P, Vianen, 1991. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4)

5.Bd2 Qe7 6.Nf3 Nf6 7.Bd3 d5 8.e5 Ne4 9.0-0 Nd2 10.Nbd2 Nc6 11.c4 Bc3 12.cd5 ed5 13.Rc1 Bb2 14.Rc6 (14.Rc5 Bd4 15.Rc6 Bf2 16.Rf2 bc6+=) 14...bc6= 15.Qc2 Qb7 16.Rb1 Rb8 17.Qc5 (17.Nb3 Ba3=) 17...Qb6+= 18.Qd6 (18.Qc2 Rb7+=) 18...Bg4-/+ 19.Ng5 Rd8 20.Rb2 Qb2 21.Qc6 Bd7 (21...Ke7 22.Qc5 Ke8 23.Bb5 Bd7 24.Qd5 Qc1 25.Bf1=) 22.Qd5+= 0-0 23.Nf7 Qc1 (23...Rf7 24.e6 Be6 (worse is 24...Qd2 25.ef7 Kf8 26.Qd6 Kf7 27.Bc4 Ke8 28.Qe5 Kf8 29.Qc5 Ke8 30.Qe5 Kf8 31.Qc5 Ke8 32.Qe5=) 25.Qd8 Rf8+=) 24.Nf1+= Qf4?? (better is 24...Rf7 25.e6 Re7 26.ed7 Kh8=) 25.Nd8+- Kh8 26.f3 Bc8 (26...Rd8 27.e6 Qf6 28.ed7 Qe7+-) 27.e6 Qc7 (27...Qh4 28.Nf7 Kg8+-) 28.Nf7 Kg8 (28...Rf7 29.ef7 Qd6 30.Qd6 Be6 31.Qd8) 29.Bh7! (29.Bh7 Kh7 30.Qh5 Kg8 31.Qh8) 1–0. Augstein,Joerg – Dupke,Andreas, Eintracht op, 2008. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb4)

5.Bd2 Be7 6.f4 (6.Nf3 d5 7.e5 Nc6+=) 6...Nc6 7.Nf3 Nf6 8.Bd3 Nb4 9.0-0 (9.Bb4 Bb4 10.c3 Ba5=) 9...Nd3= 10.cd3 b6 11.Nc3 Ba6 12.e5 Ng4 13.Ne1 Nh6 14.a3 Nf5 15.Qa4 Bb7 16.g4 (better is 16.Nc2!?+=) 16...Nd4!-/+ 17.Ne4 (17.Qd4 Bc5) 17...Bc6?? (17...Bc5 18.Nc5 bc5 19.Rb1-+) 18.Qd1?? (18.Qd4 Be4 19.Qe4+- (19.de4?? Bc5 20.Qc5 bc5-+)) 18...0-0 19.Bb4 Bb4 20.ab4 Qe7 21.Nd6 (21.Rb1 Nb5 22.Qf3 d5-+) 21...Nb5 (better is 21...f6 22.Ra2 fe5 23.fe5 Rf1 24.Kf1 Qg5-+) 22.Nb5-/+ Bb5 23.Qb3 Qh4 24.g5 h6 (24...Qg4 25.Ng2-+) 25.gh6 Qh6 26.Rf2 Bc6 27.b5 Bd5 28.Qd1 Rfc8 29.Qg4 Rc5 30.Nf3 (30.Rb2!?-/+) 30...Rb5-+ 31.Ng5 a5 32.Rc1 Bc6 33.Rcf1 Rb4 34.Qg3 Qh5 35.h3 a4 36.Ne4 Be4 37.de4 a3 38.Ra1 Re4 39.Rg2 Qh6 40.Ra3 Ra3 41.Qa3 Qf4 (41...Qf4 42.Qc3 Qe5 43.Qe5 Re5-+; 41...Rf4?! 42.Qc1-+) 0–1. Anderson,George – Kohalmi,Andy, Winnipeg TNT Febr op, 2004. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb4)

5.c3 Ba5

6.Bd2 d6 7.Bd3 a6 8.f4 (8.Nf3 Nf6+=) 8...b5 (8...d5 9.e5+=) 9.Nf3 (9.a4 Bd7+=) 9...Nf6 (9...Nc6 10.0-0+=) 10.0-0 (10.a4 Bd7+/-) 10...Bb7+= 11.e5 de5 12.fe5 Ng8? (12...Ne4 13.a4 Nd2 14.Qd2+=) 13.Qc2 (13.a4!? Bc6+-) 13...h6 (13...Bf3 14.Rf3 (worse is 14.gf3 Ne7=) 14...Nc6 15.Qb2+=) 14.Be3 (14.Qb2 Nd7+/-) 14...Nd7 15.Qf2 (15.a4 b4+/-) 15...Qe7 (15...Qc7+=) 16.Qc2 0-0-0?? (better is 16...Qd8=) 17.c4 (better is 17.a4 Bc7 18.ab5 ab5 19.Na3 Bf3 20.Rf3 Be5 21.Bb5+-) 17...bc4 18.Qc4 Bc7 19.Nc3 Nb6 20.Qb3 f6 (20...Rd7 21.a4 a5 22.Rab1+-) 21.Be2 (better is 21.Nh4 Qd7 22.Ng6 fe5 23.Nh8 ed4 24.Rf7+-) 21...Qd7 (better is 21...Rd7!?+/-) 22.Rab1 f5? (22...Re8 23.d5 Bd5+-) 23.Rfc1 Ne7 24.Na4!! Ned5 25.Nb6 Nb6 26.Qb6 Rdf8 27.Qb7 Kd8 28.Ba6 g5 29.Qc6 Qc6 30.Rc6 Rh7 31.Re6 Re8 32.Re8 Ke8 33.h3 f4 34.Bf2 Ke7 35.Rb7 Ke6 36.a4 Re7 37.Bc4 Kf5 38.a5! (38.a5 g4 39.hg4 Kg4 40.a6+-) 1–0. Tzyrenova,Elizaveta – Stepanova,Alla, Uliyanovsk RUS, Students Ch (w), 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4)

6.Bd3 Qb6 7.Ne2 Nc6 8.0-0 Nf6 9.Ba3 (9.e5 Nd5+-) 9...d5 10.Nd2 (10.e5 Nd7+-) 10...Bd7 (10...de4 11.Ne4 Ne4 12.Be4+-) 11.Rb1 Qc7 12.e5 0-0-0?? (better 12...Ng4+-) 13.Bd6+- Qb6 (13...Qd6 14.ed6 Ne8 15.c4 Bd2 16.Qd2 dc4 17.Bc4 Nd6 18.Rfc1+-) 14.Rb6 Bb6 15.ef6 gf6 16.c4 e5 (16...Rde8 17.Qc2+-) 17.cd5 Nd4 (17...Bg4 18.de5 fe5+-) 18.Nd4 Bd4 19.Bf5! b6 (19...Bf5 20.Qc1) 20.Qa4 b5 (20...Bf2 21.Rf2 Kb7 22.Bd7 a5 23.Qc6 Ka6 24.Qc4 Ka7 25.Qc7 Ka6 26.Bb5 Kb5 27.Qc4) 21.Qa6 1–0. Arnaudov,P (2005) – Punchev,Ivan (1685), 11th Hristo Gerenski Mem, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4)

6.Bd3 Qc7 7.Bd2 Nf6 8.Na3 a6 9.e5 Nd5 10.Nc4 0-0 (better is 10...Bc3!? 11.Bc3 Nc3+-) 11.Na5+- Qa5 12.c4 Nb4? (better is 12...Qb6 13.cd5 Qd4+-) 13.Bh7! Kh7 14.Qb1 Kg8 15.Bb4 (15.Qb4?! Qc7+-) 15...Qb6 (15...Qa4 16.Bf8 Kf8 17.Qb3 Qa5 18.Ke2+-) 16.Bf8 Qd4 (16...Qb1 17.Rb1 Kf8 18.Rb6+-) 17.Bd6 Qc3 18.Ke2 Nc6 19.Nf3 Qc4 20.Qd3 Qg4 21.h3 Qf4 22.g3 Qa4 23.Rhd1 Nb4 24.Ng5 (24.Qc4 a5+-) 24...g6?? (better is 24...Nd3!? 25.Rd3 Qc2 26.Ke3 b6-+) 25.Ne4 (25.Qc4 Nd5 26.Qa4 Nc3 27.Kf1 Na4+-) 25...b5?? (25...Nd3 26.Kd3 b5 27.Nf6 Kg7 28.Ne8 Kh8 29.Ke3-/+) 26.h4 (better is 26.Bb4 Qb4 27.Nd6 Qb2 28.Kf1+-) 26...a5?? (better is 26...Nd3 27.Nf6 Kg7 28.Rd3 Bb7-/+) 27.Nc5 (27.Nc5 Nd3 28.Na4 Nf2 29.Kf2 ba4 30.Rab1+-) 1–0. Sanchez Martin,Marc (1985) – Raventos Margeli,Josep (1855), Martorell op–B, 1997. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb4)

6.Nf3 Qc7 7.Qc2 Ne7 8.Bd3 d6 9.0-0 Bd7 10.Bb2 a6 11.a4 Nbc6 12.Nbd2 0-0 13.Nc4 e5 (13...f5 14.Ba3 d5 15.ed5 ed5 16.Bd6+/-) 14.Na5 (better is 14.Ba3 Nc8 15.de5 de5 16.Bf8 Kf8 17.Rab1+-) 14...Na5+= 15.c4 Ng6 16.Rfc1 Rac8 17.d5 (17.c5!?+=) 17...Nf4 18.Nd2 Nd3 (18...f5!?+=) 19.Qd3= b6 20.f4 Nb7 (20...ef4 21.Qd4 f6 22.Bc3+=) 21.fe5= Nc5?? The isolani on a4 becomes a target (better is 21...de5 22.Nb3 Nc5 23.Nc5 Qc5 24.Kh1 Rfe8+=) 22.Qg3+- g6 (better is 22...Na4 23.e6 Nb2 24.ed7 Qd7+-) 23.ed6 Qd8 24.Rf1 f5 (24...Ba4 25.Bf6 Qd7+-) 25.Qe5 (25.Qe5 Qf6 26.Qf6 Rf6 27.Bf6 Ne4 28.Ne4 fe4 29.Rab1 Rc4 30.Rb6+-) 1–0. Gonzalez Intelangelo,G (2040) – Biscarri Candalia,O, Gran Canaria ESP, 1st Santana Mem, 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4)

6.Nf3+= d5 7.ed5 Qd5 (7...ed5!? 8.Bd3 Ne7+=) 8.Bd3+/- Nf6 9.0-0 0-0 10.Ba3 (10.Qc2 b5+/-) 10...Re8 11.c4 Qh5 12.Nbd2 Nc6 13.Ne4 Ne4 14.Be4 Bd7 (14...Bc7 15.h3+/-) 15.Rb1+/- b6 16.Rb5 (16.Bd6 Rad8+/-) 16...f5+= 17.Bb1 (17.Bc2 Rad8+=) 17...a6 (17...Ne7 18.Re5 Ng6 19.Re3=) 18.Rb3 Ne7 19.Bc1 (19.Qc1!? Ng6 20.Bd6+=) 19...Ba4= 20.Bc2 (20.Qe2 Ng6 21.Ra3 Bc6=) 20...Bb3+= 21.ab3 b5 22.Qe2 bc4 (22...Nc6 23.Bf4+=) 23.bc4 (23.Qe6!? Qf7 24.Qf7 Kf7 25.bc4+=) 23...Ng6= 24.Ba4 Re7 (better is 24...Nh4!? 25.Be8 Re8=) 25.Bg5+/- Qg4 26.Be7?? (better is 26.Qe3 f4 27.Qa3+-) 26...Nf4-+ 27.Qe6 Ne6 (better is 27...Kh8 28.g3 Ne6-+) 28.Bd7 (28.Bc6 Ra7 29.Bd6 Nd4 30.Bd5 Kh8 31.Rb1 Nf3 32.Bf3-+) 28...Nf4 29.g3 Qf3 (29...Qf3 30.gf4 Qg4 31.Kh1 Qe2-+) 0–1. Pereira,Thiago (1800) – Serafim Junior,Arnor (1850), Porto Alegre BRA, Oncolinos, 2013. (=1.e4 c5 2.b4?? e6 3.bc5= Bc5 4.d4 Bb4)

6.Nf3 Ne7 7.Bd3 0-0 8.0-0 f5 (8...d5 9.Qc2+=) 9.e5 (9.ef5 ef5 10.Qb3 d5+-) 9...a6 (9...Nbc6 10.Bd2+=) 10.Ba3 (10.a4 Nbc6+-) 10...Re8 (10...Nbc6 11.Qb3+=) 11.c4 (11.Bd6 Nbc6+=) 11...Ng6 12.Nbd2 Nc6 13.Rc1 (13.Nb3 Bb4 14.Bb2 Na5+-) 13...Bb4 14.Bb2 Nf4 15.Bb1 b5 (15...g5 16.c5 b5 17.cb6+=) 16.d5 (16.g3 Ng6+-) 16...Ne7 (16...Na5!?+=) 17.a3+- Bd2? (better 17...Ba5!?+-) 18.Qd2+- (18.Nd2?! bc4 (worse 18...ed5 19.g3+-) 19.de6 de6 20.Nc4 Rb8+=) 18...Neg6 (18...Nfg6 19.h4+-) 19.g3 Nh5 20.c5 Bb7 21.c6 dc6 22.dc6 Qd2 23.Nd2 Bc8 24.f4 Rd8 25.Rfd1 (better 25.Nf3 h6+-) 25...Nhf4? (25...Ne7 26.c7 Rd7+-) 26.gf4 Nf4 27.Nf3 Rd1 (27...Rd5 28.Kf2 a5 29.Rd5 Nd5 30.Ba2+-) 28.Rd1 h6 (28...Kf7+-) 29.Rd8 Kf7 30.Kf2 (30.Nd4 Nd5 31.Ba2 Ke7+-) 30...g5 (30...Ke7 31.Rd2+-) 31.Bd4 a5 (31...Kg6 32.Bc5+-) 32.Bc5 Kg6 33.Nd4 b4 34.a4 (better 34.ab4 ab4 35.Bb4+-) 34...Nd5 (34...Kh5+-) 35.Nf5! ef5 (35...ef5 36.Rd6 Double attack (36.Rd5 Deflection; 36.Rd6 Decoy; 36.Rd5 Overloading)) 36.Rd5 Be6 (36...b3 37.Rd6 Kg7 38.c7+-) 37.Rd6 Kf7 38.Bf5! (38.Bf5 Bf5 39.Rf6 Kg7 40.Rf5+-) 1–0. Szabados,K (2100) – Fatyol,Istvan (1935), Open ch–Subotica (9), 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Ba5 6.Nf3 Ne7 7.Bd3 0-0)

5.c3 Be7

6.Bc4 Qc7 (6...d5 7.ed5 ed5 8.Bd3=+) 7.Bb3 (7.Bd3 Nc6=) 7...d6 (7...d5 8.Ne2=) 8.Qc2 (8.c4 Nc6 9.Nf3 Nf6+=) 8...Nf6 9.Nf3 Nc6 10.0-0 a6 11.Bf4 Nh5 12.Be3 Na5 13.Nbd2 Nb3 (13...0-0 14.c4=) 14.Nb3 (14.ab3!? 0-0 15.e5+=) 14...Nf6 15.Rac1 b5 16.Bg5 Bb7 17.Bf6 (17.Nbd2 Rc8=+) 17...Bf6=+ 18.Rfe1 g6 19.d5 0-0 Attacks the backward pawn on c3 20.Qd3 (20.de6 fe6 21.Nbd4 Rae8=+) 20...Rac8 21.e5 (21.de6!? fe6 22.Nfd4-/+) 21...Be5 (21...de5 22.de6 e4 23.Re4 Be4 24.Qe4-+) 22.Ne5-/+ de5 23.d6 (23.de6!? fe6 24.Qe3-/+) 23...Qc6-+ 24.f3 Rfd8 25.Re5 Rd6 26.Nd4 (26.Qe3 Rcd8-+) 26...Qb6 (better 26...Qd7 27.Qe3 b4-+) 27.Kf1?? (27.Qe3-+) 27...Rd4! 28.Qe3 (28.cd4 Rc1 Pinning (28...Rc1 Deflection); 28.Qd4 Qd4 Combination) 28...Rd6 29.Qe1 (29.Qb6 Rb6 30.a3 a5-+) 29...Bd5 30.a3 (30.Qf2 Qa5 31.Qg3-+) 30…Bc4 (30...Bc4 31.Re2 Rcd8 32.h3 Qe3 33.g4 Be2 34.Qe2 Qc1 35.Kg2 Rd2 36.Qf2 Rf2 37.Kf2 Rd2 38.Ke3 e5 39.f4 Qe1 40.Kf3 e4) 0–1. Marchese,Jackson – Felix,Joao Eduardo Orland, IV Concordia Open, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Nd2 d6 7.f4 (7.Bd3 Nc6+=) 7...Nf6 8.Bd3 Nc6 9.Nh3 (9.Ngf3 0-0+=) 9...Qa5 (9...0-0 10.0-0=) 10.Qc2+= h6 11.Rb1 Qc7 12.0-0 (12.e5 Nd5 13.Ne4 0-0+=) 12...Bd7 (12...d5 13.Rf3=) 13.Qb2 (13.e5 Nd5 14.Nc4 0-0+/-) 13...b6 14.c4 (14.e5!? Nd5 15.Nc4=) 14...e5 15.Nf3 Bh3 16.gh3 Nd7 17.d5 Na5 18.c5 (18.fe5 de5 19.Kg2 Nc4=) 18...Qc5= (worse is 18...Nc5 19.Bb5 Kf8 20.fe5 Ne4 21.Be3+=) 19.Kh1 Bf6 20.fe5 Ne5 21.Bb5 Ke7 (21...Kf8 22.Ne5 Be5 23.Qe2=) 22.Ne5+= Be5 23.Qe2 Rac8 (23...Rhc8 24.Qf3 f6 25.Qg4+/-) 24.Qg4 (24.Bd2 Rhd8 25.Ba6+-) 24...Rc7? (24...Rhd8 25.Bh6 Qb5 26.Bg5 f6 27.Rb5+-) 25.Bd2 (better is 25.Rf7 Kd8 26.Rd7 Kc8 27.Bf4+-) 25...Rhc8?? (25...Kd8 26.Ba5 f5+/- (26...ba5?? 27.Bc6 Qb4 28.Rb4 ab4 29.Qh4 g5 30.Qe1+-)) 26.Rf7!! Kf7 (26...Kf7 27.Qe6 Mate attack) 27.Qe6 Kf8 28.Rf1 Bf6 (28...Qf2 29.Rf2 Bf6 30.Rf6 gf6 31.Bh6 Rg7 32.Qf6 Kg8 33.Qg7) 29.Rf6 gf6 30.Bh6 (30.Bh6 Rg7 31.Qf6 Kg8 32.Qg7) 1–0. Hodot,Yves (1900) – Zurano,Alberto (1830), Pau FRA, Senior Ch, 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Bd3 Nc6 7.Ne2 d5 8.Nd2 de4 9.Ne4 f5 10.N4g3 Nf6 11.0-0 0-0 12.Nf4 Qc7 13.Re1 Nd5 14.Nd5 ed5 15.Qf3 Qd7 16.Bf4 g5 17.Be5 g4 18.Qf4 Qd8? (better is 18...Rf7+/-) 19.Bf5 (19.Bf5 Ne5 20.Re5+-) 1–0. Alekhine,Alexander – NN, Paris sim, 1925. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Bd3 d5 7.e5 Nc6 8.Ne2 Bg5 9.f4 (9.Nd2 Nge7+=) 9...Bh6 (9...Be7 10.f5 ef5 11.0-0=) 10.0-0+= Nge7 11.g4 (11.Nd2!?+=) 11...g6= 12.Ng3 0-0 13.Ba3 f5?? (better 13...Re8=) 14.ef6!+- Rf6 15.g5 Bg5 16.fg5 Rf1 17.Qf1 (17.Kf1?! e5+-; 17.Nf1?! Nf5 18.Bc1 e5+-) 17...Nf5 (17...Bd7 18.Qf6+-) 18.Nf5 ef5 19.Qf4 Bd7 (19...Be6 20.Nd2+-) 20.Nd2 Qa5 21.Bb2 Re8 22.Nb3 (better 22.Qd6 Bc8 23.Nc4+-) 22...Qb5 (22...Qd8 23.Bc1+-) 23.Qf1 (better 23.Bb5 Ne5 24.Bd7 Nd7 25.Qc7+-) 23...Qb6 24.Re1 (better 24.Ba3+-) 24...Rf8 (24...Ne5 25.Be2+- (25.Re5?! Re5 26.Nc5 Re7 27.Nd7 Rd7+-)) 25.Ba3 (better 25.Qf3 Qd8 26.Qd5 Kg7+-) 25...Rc8 (25...Re8 26.Re8 Be8 27.Qf4+-) 26.Nc5 (26.Qf3!? Kg7 27.Qd5 Qd8+-) 26...Qd8 (26...Be8 27.Qf2+-) 27.Nd7 (27.Qg2 Kg7 28.Qd5 Qg5 29.Kh1 Rd8+-) 27...Qd7 1–0. Gluchaciov,Nikolaj (1785) – Ziogas,Antanas (1700), SEA FESTIVAL B, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Bd3 Nf6 7.Ne2 (7.e5 Nd5+=) 7...Nc6 8.0-0 0-0 9.f4 (9.Qc2 d6=) 9...d6 10.h3 Re8 11.Nd2 Bf8 12.Nf3 d5 13.e5 Ne4 14.Qc2 f5 15.ef6 gf6 (15...Nf6 16.Ne5+=) 16.Be4+/- de4 17.Qe4 f5 (17...Qd5 18.Ng3+/-) 18.Qb1 Re7 (18...b6 19.Be3+/-) 19.Ba3+- Rg7 20.Bf8 Kf8 21.Qb3 Na5 22.Qb4 Kg8 23.Nc1 Qd5 24.Nd3 b6 25.Rf2 Bb7 26.Re1 h6 27.Nde5 Kh7 (27...Rc8 28.Kh2+/-) 28.Qb1 (28.c4 Qd8+-) 28...Kh8 (28...Nc4 29.Kh1+/-) 29.Kh2 Nc4 (29...Rc8 30.Re3+/-) 30.Nc4+- Qc4 31.Qb3 Bd5 32.Qc4 Bc4 33.Ne5 Bd5 34.g4 (34.c4 Be4+-) 34...Rag8 (34...Rc8!? 35.Re3+-) 35.c4 Be4 36.Re3 Rd8 37.Rd2 Rdg8 (37...Kg8 38.Kg3+-) 38.d5 ed5 39.cd5 Rc7 (39...h5 40.g5+-) 40.d6 (40.d6 Rd8 41.Kg3+- (41.dc7?! Rd2 42.Kg3 Rc2+-)) 1–0. Koltanowski,George – Garcia,Enrique, simul blind, 1939. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.d5 d6 7.Ba3 Nf6 8.f3 (8.Bb5 Bd7 9.Bd7 Qd7+=) 8...Qb6 (8...ed5 9.ed5 Nbd7 10.Ne2-/+) 9.Bc4 0-0 (9...ed5 10.ed5 Nbd7 11.Ne2+=) 10.Ne2 (10.de6 Be6 11.Be6 fe6=) 10...e5 (10...ed5 11.Bd5 Nd5 12.Qd5+=) 11.Nd2= Nbd7 12.Rb1 Qc7 13.0-0 Nb6 14.Bd3 Bd7 15.c4 Na4 16.Bc2 Nc5 17.Nc3 b6 18.Nb3 Rfb8 19.Qe2 Rb7 20.h3 Nh5 21.Rfd1 Nf4 22.Qe1 Rab8 23.Bc5 bc5 24.Ne2 Ng6 25.Nc3 Rb4 26.a3 R4b7 (26...Rc4?! 27.Bd3 Bh4 28.Qd2=) 27.a4 a6 28.a5 Qd8 29.Rb2 Nf4 30.Ne2 Bh4 31.Qf1 Qg5 32.Nf4 Qf4 33.Rdb1 Qe3 34.Kh1 Rb4 35.Bd3 (35.Qd1 Bd8-+) 35...Bg3 (35...Ba4 36.Qd1 Bb3 37.Bc2 Bc4 38.Rb4 Rb4 39.Ra1-+) 36.Qe2 Qe2 37.Be2 Bf2 38.Bd1 Bd4 39.Ra2 Rc4 40.Nd2 Rb1 41.Nb1 Rc1 42.Nd2 Rd1 43.Kh2 Ra1 44.Rc2 Bb5 45.Nb3 Ra4 46.f4 Rc4 47.Nd4 cd4 48.Rd2 f6 49.fe5 de5 50.Kg3 Kf7 51.h4 h5 52.Kf2 Ke7 53.g4 hg4 54.Kg3 Bd7 55.Rb2 Rc3 56.Kf2 Bb5 57.h5 d3 58.Ke3 Rc2 (58...Rc2 59.Rb5 ab5 60.Kd3 g3 61.Kc2 g2-+) 0–1. Wulff,Jens Peter – Klopsch,Erhard, Mecklenburg VP LL2, 2000. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb4 5.c3 Be7)

6.e5 d6 7.Qg4 g6 8.Nf3 Nc6 9.Bf4 f6 10.Bb5 (10.ed6 e5 11.Qh4 Qd6=) 10...de5= 11.Bc6 bc6 12.de5 Qd3 13.Nbd2 (13.Nfd2 Bc5=) 13...f5 (better is 13...Ba6!? 14.Ng1 Qc3-/+) 14.Qg3= c5 15.h4 (15.Ng5!? Qg3 16.hg3+= (worse is 16.fg3 h6 17.Ngf3 g5+=)) 15...Ba6+= 16.c4 (16.Ng1!?+=) 16...Bc4-/+ 17.Nc4 Qc4 (17...Qc3!? 18.Ke2 Qc4 19.Ke1 Rd8-/+) 18.Nd2 Qd5 19.0-0 Kf7 20.Rfd1 h6 21.Nf3 Qc6 22.Rd2 Rc8 23.Rad1 Rc7 24.Rc2 Qa4 25.Rcd2 (25.Rdc1 Kg7=) 25...Rh7 (25...c4 26.Ra1+=) 26.Rd3 (better is 26.Rc1!?=) 26...Rg7 27.R3d2 Kf8 (27...c4 28.Ra1-/+) 28.Kh2 (28.Rb1 Ke8 29.Bh6+-) 28...Bh4?? (28...Rb7 29.a3 c4+= (29...Qa3?! 30.Bh6 Nh6 31.Rd8 Kf7 32.Ng5 Bg5 33.Qa3 Bd8 34.Rd8=)) 29.Nh4 (29.Qh4 Rc8 30.Rd8 Rd8 31.Qd8 Qe8 32.Be3+-) 29...g5+/- 30.Rd8 Kf7?? 31.Nf5!+- Re7 32.Ng7 gf4 33.Qg4 Qc2 34.Ne6 Qh7 35.R1d7 Rd7 36.Rd7 Ne7 37.Qh4 Ke6+- 38.Ra7 Qg7 39.Qf4 Qg6 40.Ra6 (40.Ra6 Kd5 41.Rg6 Ng6 42.Qf7 Ke5 43.Qg6+-) 1–0. Mablouke,Ulrich (1780) – Meier,Kurt (1990), Saint Denis FRA, 2011. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Nf3 d5 7.e5 (7.Bd3 de4 (7...Nf6 8.e5 Nfd7 9.0-0 Nc6 10.Na3 a6 11.c4 Qa5 12.cd5) 8.Be4 Nf6 9.Nbd2 Nc6 10.0-0 0-0 11.Re1 Qc7 12.Bd3; 7.Nbd2 A) 7...Nf6 8.e5 (8.Bd3 0-0 9.e5 Nh5 10.Nb3 f5 11.ef6 Nf6 12.0-0) 8...Nh5 9.Nb3 f5 10.h4 0-0 11.Ng5 g6 12.Be2; B) 7...Nc6 8.Bd3 (8.ed5 ed5 9.Bd3 Nf6 10.0-0 0-0 11.Qb3 Qb6 12.Re1) 8...Nf6 9.e5 Nh5 10.Nb3 f5 11.ef6 Nf6 12.0-0; 7.ed5 ed5 8.Ne5 (8.Nbd2 Nh6 9.Bd3 0-0 10.0-0 Nc6 11.Re1 Nf5 12.Nb3) 8...Nf6 9.Bd3 Nc6 10.0-0 0-0 11.Bf4 Qa5 12.Qc2) 7...h5 (7...Nc6 8.Bd3+= Nh6 9.Bh6 gh6 10.0-0 Bd7 11.Nbd2 h5 12.Qc2; 7...Nh6 8.Bh6 gh6 9.Bd3 Qc7 10.0-0 Bd7 11.Qd2 Nc6 12.Qh6) 8.h4 (8.Bd3 Qc7+= (8...Nc6 9.0-0 Nh6 10.Ba3 0-0 11.Be7 Qe7 12.Nbd2) 9.Ng5 g6 10.0-0 Nh6 11.Qf3 Nf5 12.Na3; 8.c4 Nc6 9.cd5 Qd5 10.Nc3 Qa5 11.Bd2 Nh6 12.Nb5) 8...Nh6 (8...Nc6 9.c4 Bb4 10.Bd2 Nge7 11.Bb4 Nb4 12.Nc3) 9.Bd3 (9.c4 Nc6 10.Nc3 Nf5 11.cd5 ed5 12.Bb5) 9...Nc6 (9...Nf5 10.Na3 Nc6 11.0-0 0-0 12.Bg5) 10.Bg5 (10.Ba3 Nf5 11.Be7 Qe7 12.Nbd2) 10...Bd7 (10...Nf5 11.Be7 Qe7 12.Qb3) 11.0-0 (11.Nbd2 Ng4 12.0-0) 11...g6 (11...f6 12.ef6 gf6 13.Bf4+=; 11...Nf5 12.Bf5) 12.Qc2 (12.Na3 a6+/-) 12...Nf5 13.Nbd2 (13.Be7!? Qe7 14.Bf5 gf5 15.Nbd2+=) 13...Nh4= 14.Bh4 (14.Be7 Qe7 15.Rab1 b6+=) 14...Bh4+= 15.Bg6 (15.Rab1 Rb8+=) 15...fg6-/+ 16.Qg6 Kf8 17.Nh4 (17.c4 Be7-/+) 17...Qh4 18.f4 (18.Nf3!? Qf4 19.Ng5-+) 18…Ne7 (18...Ne7 19.Qg5 Qg5 20.fg5 Nf5-+) 0–1. Roosink,T – Schuurman,P (2215), HZ Open, Vlissingen NED, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.Nf3 Nf6 A) 7.Qc2 A1) 7...0-0 8.Bd3 (8.Nbd2 Nc6 9.Bd3 h6 10.0-0 Qc7 11.e5 Nd5 12.Ne4) 8...h6 9.0-0 Nc6 10.Na3 d5 11.e5 Ne4 12.Rb1; A2) 7...h6 8.Nbd2 (8.Bd3 Nc6 9.Nbd2 0-0 10.0-0 b6 11.e5 Nd5 12.h3) 8...0-0 9.Bd3 Nc6 10.0-0 d6 11.Nc4 b5 12.Ne3; A3) 7...Nc6 8.Bd3 (8.Nbd2 g6 9.Bd3 d5 10.0-0 0-0 11.e5 Nd7 12.h3) 8...0-0 9.0-0 d6 10.Na3 h6 11.Nc4 b5 12.Ne3; B) 7.e5 Nd5 8.c4 (8.Bd3 Nc6 9.0-0 0-0 10.c4 Ndb4 11.Nc3 f6 12.ef6) 8...Nb6 9.Nc3 Nc6 10.Bd3 0-0 11.c5 Nd5 12.Nd5.

6.f4 d5 7.e5 Nc6 8.Nf3 Nh6 9.Bd3 Nf5 10.0-0 h5 11.Ba3 (better is 11.Bf5 ef5 12.Ba3=) 11...Ne3-/+ 12.Qe1 Nf1 13.Qf1 Qa5 14.Qc1 Ba3 (14...0-0 15.Be7 Ne7 16.Nbd2-/+) 15.Na3 a6 16.Nd2 (16.Qb2 0-0-/+) 16...g6 (16...h4 17.h3-/+) 17.Nb3 Qd8 18.Nc2 Rg8 (18...0-0 19.Ne3-/+) 19.Qe3 (19.Ne3 Kf8+=) 19...g5 20.Rf1 gf4 (20...g4!?+=) 21.Qf4= Qe7 22.Be2 (22.Ne3 Rg7=) 22...h4 23.Bh5 Rg7 24.Qh6 Qf8 25.Qf6 h3 26.g3 Qg8 27.Ne3 Nd8?? (27...Qh7!?=) 28.Nc5 (better is 28.Qh4!? Qh8 29.Nc5+-) 28...b6+= 29.Nd5 ed5 30.e6 Ra7?? 31.Re1 Rg3 32.Kh1 Re3 33.ef7 Nf7 34.Re3 Kf8 35.Rg3 Qh8+/- 36.Qh8 Nh8 37.Nd3 Re7 38.Kg1 Bd7 39.Kf2+- Bb5 40.Ne5 1–0. Martinez,Julian (2210) – Laverde,Luis Eduardo (2095), Medellin COL, 2014. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

6.f4 d5 7.e5 Bh4 8.g3 Be7 9.Bd3 Nc6 10.Nf3 a6 11.Ba3 Qa5 12.Be7 Nge7 13.Qc2 g6 14.Nbd2 Qc7 15.Kf2 Bd7 16.h4 h5 17.Rag1 Rg8 (17...0-0 18.Rc1=) 18.Rb1 b5 (18...Kf8!?+=) 19.Nb3+/- Na5 20.Nc5 Nc4 21.Bc4 dc4 22.Ng5 Bc6 23.Rhd1 Bd5 (23...Qa5 24.a4 Kf8 25.Ra1 ba4 26.Na4+/-) 24.Nh7 Rg7 (24...Nf5!?+/-) 25.Nf6+- Kf8?? (25...Kd8+-) 26.Ncd7 Qd7 27.Nd7 Ke8 (27...Kg8 28.a4 Bc6 29.Nf6 Kh8 30.ab5 Bb5 31.Qa2+-) 28.Nf6 Kf8 29.a4 Rb8 (29...Bc6+-) 30.Nd7 (30.Nd7 Kg8 31.Nb8+-) 1–0. Johnke,Stefan (1935) – Luft,Viktor, Guben op, 2003. (=1.e4 c5 2.b4?? e6 3.bc5= Bc5 4.d4 Bb4 5.c3 Be7)

6.f4 d6 7.Nf3 Nf6 8.Bd3 0-0 9.0-0 b6 10.h3 (10.Nbd2 Ba6 11.Ba6 Na6+=) 10...Bb7 11.Qc2 g6 (11...Nc6!?=) 12.f5+= ef5 13.ef5 Nbd7 (13...Nc6 14.Bh6 Qe8 15.Nbd2+-) 14.Bh6+/- Nd5? (better is 14...Re8!? 15.fg6 hg6 16.Bg6 Bf3 (16...fg6?? 17.Qg6 Kh8 18.Qg7) 17.Rf3 Bf8 (17...fg6 18.Qg6 Kh8 19.Qg7) 18.Bf8 Kf8+-) 15.fg6+- (15.Bf8 Bf8 16.fg6 fg6 17.Bg6 Qe7+- (17...hg6?? 18.Qg6 Bg7 19.Ng5+-)) 15...fg6 16.Bg6 N7f6? (16...Rf6 17.Bh7 Kh8+-) 17.Ng5 Kh8 (17...hg6?? 18.Qg6 Kh8 19.Qg7) 18.Bh7 (18.Bh7 Qe8 19.Bg6+- (19.Bf8?! Bf8 20.Qg6 Qg6 21.Bg6 Be7+-)) 1–0. Martinez Zuluaica,J (2205) – Camargo Zuniga,N (1860), Bucaramanga COL, Udi Cup, 2014.

6.Qg4 g6 7.e5 h5 8.Qf3 Bg5? (8...d5 9.Ba3+=) 9.Nd2 d5 10.ed6! Bd2 (10...Qd6 11.Ne4) 11.Bd2 Qd6 12.Bf4 Qc6 13.Qd3 Nd7 14.Nf3 Ngf6 15.Ne5 Qe4 16.Qe4 Ne4 17.c4 b6 18.Bd3 Bb7 19.Rb1 (19.Nd7!? Kd7 20.f3+/-) 19...g5 20.Nd7 Kd7 (20...gf4?? 21.Be4 0-0-0 22.Bb7 Kb7 23.Nc5 Kc6 24.Nb3+-) 21.Be3 Bc6 (21...Nd6 22.c5 Bg2 23.Rg1+=) 22.0-0 (better is 22.f3!? Nd6 23.c5+/-) 22...g4+= 23.Rb4 f5 24.Rd1 Ke7 25.Bf4 Kf7 26.Be4 Be4 27.d5 ed5 28.cd5 Rhd8 29.d6 Rd7 30.Rc1 Ke6 31.a4 Rb7 32.Rc3 Kd7 33.a5 Re8 34.f3 Bc6 35.Rbc4 Rc8 36.Re3 ba5 37.Re7 Kd8 38.Rc7 Rbc7 39.dc7 Kd7 40.Kf2 gf3 41.gf3 a4 42.Rc5 Rf8 43.Ra5 a6 44.Ra6 Ra8 45.Rb6 Rc8 46.Ra6 Ra8 47.Rb6 Rc8 48.Rb1 a3? 49.Rd1+- Ke8 50.Be5?? a2= 51.Ke3 Ba4 52.Ra1 Bb3 53.Kf4 Be6 54.Kg5 Kd7 55.Rd1 Ke8 56.Kh5 Bb3 57.Rc1 Bd5 58.f4 Kf7 59.Rg1 Bb7 60.Rg7 Ke6 61.Kg5 Ra8 62.Ba1 Ra3 63.Rg8 Kd7 64.Be5 a1Q 65.Rd8 Kc6 66.Ba1 Kc7 67.Rd1 Rh3 68.Be5 Kc8 69.Rd2 Be4 70.Kg6 Kb7 71.Rd7 Kc6 72.Rh7 Bg2 73.Rh3 Bh3 74.Kg5 Kd7 75.Kh4 Bf1 ½–½. Fratila,Adela (2055) – Todirel,Ileana Sinziana (2105), ROM–ch op (Women), 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb4 5.c3 Be7)

4.d4 Bb6

5.Ba3 Nc6!? 6.c3 d5 =.

5.Ba3 Ne7 6.Nf3= 0-0 7.Bd3 d6 8.0-0 Nbc6 9.e5 Ng6? (better is 9...de5!? 10.de5 Qd5=) 10.Bd6 (10.Bg6 fg6 11.ed6 g5+-) 10...Re8 (10...Nd4!? 11.Bg6 Nf3 12.Qf3 hg6 13.Bf8 Qf8+-) 11.c3+- Bc7 (11...Nf4 12.Bc2+-) 12.Bc7 Qc7 13.Bg6 (13.Na3 a6+-) 13...fg6 (13...hg6 14.Na3+-) 14.Ng5 (14.Na3 a6 15.Nc4 Rf8+-) 14...Ne7 (14...b5 15.Nd2 b4 16.Rc1+-) 15.Ne4 (15.Qb3 Nf5+/-) 15...Nf5 16.f4?? (better is 16.Qd3+-) 16...Ne3+= 17.Qb3 (17.Qf3 Nf1 18.Qf1 Rf8+=) 17...Nf1-/+ 18.Kf1 Rf8 19.g3 Qc6 20.Nbd2 b6 (20...g5 21.f5 Rf5 22.Kg1-/+) 21.Ke2 Ba6 22.Ke3 Rac8 23.Rc1 Kh8 24.Nd6 (24.Qa3 Bb7 25.Nd6= (25.Qa7?? Ra8 26.Qa8 Ra8-+)) 24...Qg2-/+ 25.Nc8 0–1. Danielsson,Sigurdur (1950) – Davidsdottir,Nansy, Reykjavik ISL, Open, 2014. (=1.e4 c5 2.b4?? e6 3.bc5 Bc5 4.d4 Bb6)

5.Bb2 d5 6.e5 Nc6 7.Nf3 Nge7 8.Bd3 0-0 9.Bh7 (9.Nbd2 Ng6=) 9...Kh7+= 10.Ng5 Kh6 11.Bc1 Ba5 12.c3 Kg6 13.h4 Bc3 (13...Qb6 14.Qd3 Nf5 15.h5 Kh6 16.Ne6 Kh7 17.Qf5 Kg8+-) 14.Nc3 Qa5 15.h5 (15.Bd2 Nd4 16.h5 Kh6+-) 15...Kh6 16.Qd3 Nf5 17.Ne6 Kh7 18.Nf8 (18.Qf5?! Kg8 19.Qd3 Be6+-) 18...Kg8 19.h6 Nh6 (19...gh6 20.g4 Kf8 21.gf5 Bf5 22.Qg3+-) 20.Rh6 (better is 20.Bh6 gh6 21.Nh7 Bf5 22.Nf6 Kg7 23.Qg3 Bg6+-) 20...gh6 (20...Bf5 21.Qg3+-) 21.Nh7 (21.Bh6 f5 22.ef6 Qc3 23.Qc3 Bg4+-) 21...Bf5 22.Nf6 Kf8 23.Qe3 Rc8 (23...Nb4 24.Qh6 Ke7 25.Bd2+-) 24.Qh6 (24.Bd2 Rd8 25.Ncd5 Qd5 26.Qh6 Ke7 27.Nd5 Rd5 28.Qg5 Kf8 29.Qf5 Nd4 30.Qc8 Kg7 31.Qg4 Kh7+-) 24...Ke7 25.Nfd5 Kd7 1–0. Anderson,George – Hogeveen Rutter,Alexander (1750), Winnipeg Grand Prix–D, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Bb2 Ne7 6.Nf3 0-0 7.Bd3 d5 8.e5 Nbc6 9.a3 Bd7 10.0-0 Rc8 11.Bh7 (11.Nbd2!?=) 11...Kh7+= 12.Ng5 Kg6 13.Qg4 f5 14.Qg3 (better is 14.ef6 Kf6 15.Nh7 Kf7 16.Nf8 Qf8 17.Nd2-/+) 14...Qe8?? (better is 14...f4 15.Qg4 Qc7-/+) 15.Ne6+= Kf7 16.Ng5 Kg8 17.Qh4?? (better is 17.e6 Rf6 18.ed7 Qd7 19.Qd3=) 17...Qg6-+ 18.Re1 Qh6 (18...f4!? 19.e6 Be8 20.Nf3 Qc2 21.Bc3-+) 19.Qh6-/+ gh6 20.Nf3 Kh7 21.e6 Be8 22.Ne5?? Ne5-+ 23.Re5 Rc2 24.Nc3 Rb2 25.Ne2 Bc7 26.Re3 f4 27.Rc3 Ba5 28.Rc5 Bb6 29.Nc3 Bc5 30.dc5 Rc2 31.Nd1 Rc5 32.f3 Rf6 33.Nf2 Re6 34.Nd3 Rc4 35.h3 Re2 36.Rb1 Bg6 37.Nf4 Rf4 38.Rb7 Rd4 39.Kf1 Bd3 40.Ra7 Rb2 41.Kg1 Rb1 42.Kh2 Re1 43.a4 Kg6 44.a5 Ra4 45.Kg3 Nf5 46.Kf2 Re2 47.Kg1 Ra1 48.Kh2 Raa2 49.h4 Rg2 50.Kh3 Rg3 0–1. Zwack,Josef – Tobisch,Alexander, Oberpfalz–ch M3, 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Bb2 Ne7 6.Nf3 d5 7.Nbd2 0-0+=.

5.Bb2 Ne7 6.f4 d6 (6...Nbc6 7.Nf3-/+) 7.Nf3 0-0 8.Bd3 Nbc6 9.0-0 (9.Nbd2!?+=) 9...e5-/+ 10.c3 ef4 11.Kh1 Bg4 12.h3 Bf3 (12...Bd7 13.Nbd2-/+) 13.Qf3+= Ng6 14.Nd2 Re8 15.Rae1 Qd7 (15...Rc8 16.Re2+=) 16.Nc4 (16.h4 Nh4 17.Qf4 Ng6=) 16...Bc7+= 17.Bc1 Rad8 (better is 17...a6+=) 18.Bf4? (better is 18.Qh5=) 18...Nf4-+ 19.Qf4 d5 20.Ne5 Ne5 21.de5 Be5 22.Qh4 Bc3 23.ed5 g6 (23...Re1!? 24.Qh7 Kf8 25.Qh8 Ke7 26.Qh4 g5 27.Re1 Be1 28.Qe1 Kf8 29.Bc4-+) 24.Rc1 (24.Re8 Re8 25.Qg4 Qg4 (25...Qd5? 26.Bc4 Qc6 27.Bf7 Kg7 28.Be8 Qe8 29.Qf3+-) 26.hg4 Bb4-/+) 24...Bg7 25.Bc4 Qe7 (better is 25...Qd6!?-/+) 26.Qf2= Rd6 27.Rce1 (better is 27.Qa7 Red8 28.Rce1=) 27...Qd7 (27...Be5 28.Qa7 Qc7 29.Re4+=) 28.Re8 (better is 28.Bb5! Re1 29.Bd7 Rf1 30.Qf1 Rd7 31.Qc4+/-) 28...Qe8= 29.Qa7 Qe7 30.Qb8 Bf8 31.a4 b6 32.Qa8 Qc7 33.Qe8= Rd8 34.Qe4 Bd6 35.h4 h5 36.Rf6 Kg7+= 37.Rf3 Rc8 38.Bb5 Qc5 39.Rf1 Qb4 40.Qb4= Bb4 41.Bc6 Bd6 42.Rb1 Bc5 43.Kh2 Rc7 44.Rb5 Ra7 45.Rb3 Re7 46.Rc3 Re4 47.Kh3 Re7 48.Rd3 ½–½. Danielsson,Sigurdur (1950) – Davidsson,Oskar Vikingur, Reykjavik ISL, Open, 2014. (=1.e4 c5 2.b4?? e6 3.bc5 Bc5 4.d4 Bb6)

5.Bb5 Qh4 6.Qd3 Nf6 7.Nd2 Ng4 8.Nh3 (8.g3 Qf6 9.Ndf3 Nc6+/-) 8...Nc6 (8...a6 9.Bc4=) 9.Nf3 (9.c3 Bd8+=) 9...Qe7 10.0-0 a6 (10...Bc7 11.e5+/-) 11.Ba4 (11.Bc6!? dc6 12.Ba3+/-) 11...Qb4 12.Bc6 dc6 (12...bc6 13.Ba3 Qa4 14.Nf4+/-) 13.Rd1 (13.Ba3 Qb5 14.Qd2+=) 13...Qd6 (13...h5 14.Bd2 Qd6 15.e5+/-) 14.Rb1 (14.e5 Qb4+/-) 14...Ba7 (14...Bc7 15.e5 Qd5 16.Nf4 Qa2 17.Ba3+-) 15.Ba3 (15.e5 Qd8+/-) 15...Qc7 (15...Qd8 16.c4 h5 17.d5 cd5 18.ed5+-) 16.Qc3 (16.e5 Qd7+-) 16...Nf6 (16...f6 17.e5 Bb8 18.g3+/-) 17.Re1 (17.Ne5 A) 17...Ne4? is a blank shot 18.Qf3 Bc5 19.Bb2+- (19.Qe4?! Ba3 20.Ng5 Be7 21.Ngf7 Rf8+/-); B) 17...c5 18.Ng5 h6 19.Ngf7 0-0 20.dc5 Rf7 21.Nf7 Kf7+/-) 17...b6 (17...h6 18.Ne5+/-) 18.d5 (18.e5 Nd5 19.Qd3 b5+-) 18...c5 19.Red1 (19.Qd2 0-0 20.d6+/-) 19...0-0 (19...ed5!? 20.ed5 0-0+=) 20.d6+/- Qb7 (20...Qc6 21.e5 Nd5+-) 21.Qd3?? (better is 21.e5 Ne4 22.Qd3+/-) Bd7 (21...Bd7 22.e5 Ne4+-) 0–1. Lee,Dylan – Horowitz,Jethro, AUS–ch U18 Sydney, 2002. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.c3 a6 6.Bd3 Qc7 7.Nf3 h5 8.0-0+- Nf6 (8...Ne7!?+-) 9.Ba3 Nc6 10.Nbd2 Ng4?? (10...d5 11.e5 Ng8+-) 11.Nc4 Nd4 (11...Ne7 12.h3 f6+-) 12.cd4 Bd4 (12...d6 13.Nd6 Kd8 14.Rc1+-) 13.Nd6 Kd8 14.Nd4 b5 15.Rc1 Qb6 16.Nf7 (16.Nf7 Ke8 17.Nd6 Qd6 18.Bd6+-) 1–0. Janek – Leaso, internet, 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 a6)

5.c3 a6 6.Bd3 Ne7 7.Nf3 h6 8.e5+- Ba7 (8...Nbc6 9.Nbd2+-) 9.Nbd2 b5 (9...Nbc6 10.0-0+-) 10.Ne4+- 0-0 11.0-0 Nbc6 12.Ba3 (12.Bd2 Nd5+-) 12...Bb7+- 13.g3 (13.Nd6 Rb8+-) 13...b4 (13...Na5 14.Nfd2+-) 14.Rb1 Rb8 15.Bb4 Nb4 16.Rb4 Nd5 17.Rb3 f5 18.ef6! Nf6 (18...Nf6 19.Nf6 Combination; 18...gf6 19.Qd2 Decoy) 19.Qe2 (19.Qc2 Bd5 20.Nf6 Qf6+-) 19...Bd5 (19...Be4 20.Be4 Rb3 21.ab3+=) 20.c4 Ba8 (20...Rb3 21.ab3 (21.cd5?! Ra3 22.de6 de6+=) 21...Be4 22.Be4 Ne4 23.Qe4+-) 21.c5+- Rb3 (21...Bd5 22.Rbb1+-) 22.ab3 Bb8 23.Ned2 Nd5 (23...Qa5 24.Ba6 Bc6 25.Bc4+-) 24.Ba6 (24.Qe4 Rf5+-) 24...Nc3 (24...Qa5 25.Bc4+-) 25.Qe3 (25.Qd3 Qa5+-) 25...Qa5 26.Bd3 Nd5 27.Qe2?? (27.Qe4 Nf6 28.Qe2 Bc7+-) 27...Nf6?? (better 27...Nc3 28.Qe1 Rf3 (worse 28...Bf3 29.Nb1+-) 29.Nf3 Bf3=) 28.Rb1 (28.Rc1 Qa3 29.Re1 Qb4+-) 28...Nd5 29.Nc4 (better 29.Qe4 Nf6 30.Qe1+-) 29...Qc7? (better 29...Qc3 30.Be4 Bc7+-) 30.Qe4 Nc3 (30...Nf6 31.Qa8 Ba7 32.Bh7 Nh7+-) 31.Qh7 Kf7 32.Nfe5 Ke8 33.Qg7 Nb1 34.Bg6 (34.Bg6 Rf7 35.Qf7 Kd8 36.Qf8) 1–0. Janek – Outstanding, internet, 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 a6)

5.c3 Nc6 6.Qg4 Qf6 7.e5 (7.Qg3 Nd4 8.e5 Qg6 9.Qg6 hg6=) 7...Ne5+= 8.Qg3 Ng6 9.Nf3 h6 10.Bd3 N8e7 11.Na3 0-0 12.Nc4 Nd5 (12...Nf5!? 13.Bf5 ef5 14.Nb6 Re8 15.Ne5 ab6-/+) 13.Nb6= ab6 14.Bd2 Ndf4 15.Bb5 (15.Bg6 Ng6 16.0-0 d5=) 15...Ra5 16.a4 Re8 (better is 16...d6+=) 17.0-0?? (better is 17.Ne5=) 17...Rb5!-+ 18.ab5 (18.Rfe1 Rb2-+) 18…Ne2 (18...Ne2 19.Kh1 Ng3 20.fg3 Qd8-+) 0–1. Raccine – Wall,Bill, Fremont, 1987. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.c3 h6 6.Nf3 d5 7.e5 Nc6 8.Bd3 f5 9.ef6 Qf6 10.0-0 Bd7 11.Na3 Nge7 12.Re1 a6 13.Rb1 Nc8 14.Nc2 0-0 15.Ne3 h5 16.Nf1 e5 17.Bg5 Qf7 18.Ne5 Ne5 19.Re5 Qf2 20.Kh1 Bg4 (better is 20...Qf7!?+/-) 21.Qb3+- Bf3 22.Ne3 (22.gf3?! Qf3 23.Kg1 Qf2 24.Kh1 Qf3 25.Kg1 Qf2 26.Kh1 Qf3=) 22...Rf7?? (better is 22...Bc7 23.Rd5 Kh8+-) 23.Re8 (23.gf3?! Qf3 24.Ng2 Qd3+=) 23...Rf8 24.Rf8 Kf8 25.Rf1 (25.Rf1 Qf1 26.Bf1+-) 1–0. Alves,Joaquim Fabiano – Moreira,Mauricio Soares F, BRA corr Brazil, 1976. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.c3 h6 6.Qg4 Qf6 7.e5+/- Qg6 8.Qg6 fg6 9.Nf3 Ne7 10.Bd3 Nbc6 11.Ba3 Kf7 12.0-0 a6 13.Nbd2 Ba7 14.Ne4 Rf8 15.Nd6 Kg8 16.Rab1 b6 (better is 16...Nd5 17.Rfc1 Nf4+-) 17.Nc8 Rac8 18.Ba6 Rce8 19.Bd3 Rf7 20.Bd6 Kh7 21.h4 Nf5 22.Bc7 Ra8 23.Rb2 Rc8 (23...Rff8 24.Rfb1+-) 24.Bb6 Bb6 25.Rb6 Nce7 26.c4 Ra8 27.g4 Nc8 (27...Ra3 28.Rb3 (28.gf5?! Rd3 29.Rb3 Rb3 30.ab3 Rf5+-) 28...Rb3 29.ab3 Nd4 30.Nd4+-) 28.gf5 gf5 (28...Rf5 29.Bf5 Nb6 30.c5+-) 29.Rb2 g5 30.hg5 Rg7 31.Kg2 hg5 32.Rh1 Kg8 33.d5 g4 34.Nd4 Rg6 (34...Re7 35.d6 Rf7 36.c5+-) 35.c5 Kf7 (35...ed5 36.Bf5 Rg5 37.Kg3+-) 36.c6 (36.Rh7 Kf8 37.Rd7 Ne7 38.Ne6 Re6 39.de6 Rc8+-) 36...d6 (36...dc6 37.Rb7 Kg8 38.Ne6 Re6 39.de6 Ra5+-) 37.de6 Re6 38.Bc4 1–0. Ritova,Merike (2010) – Seibel,Gerhard, NBG Open Weilburg, 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.c3 h6 6.Qg4 g5 7.e5 f6? 8.Qh5+- Kf8 9.h4 Nc6 10.Ba3 Kg7 11.Bd3 f5 12.g4 gh4? 13.f4 Ba5? 14.gf5 Nge7 15.f6 Kf8 16.Qg6 Rg8 17.Qh6 Ke8 18.Qh5 Ng6 19.Bg6 Rg6 20.Qg6 1–0. Ottenweller,Wolfgang (1810) – Bester,Kazimierz, IECG, 2007.

5.Nc3 d5 6.Bb5 Bd7 7.Bd7 (worse is 7.ed5 Bb5 8.Nb5 Qd5+= (worse is 8...ed5 9.Bf4+=)) 7...Qd7 8.ed5 ed5 9.Rb1 Nc6 10.Ba3 (10.Nf3 Nf6=) 10...Nge7 (10...Bd4 11.Nb5 Qe6 12.Qe2+=) 11.Nf3 Qe6 12.Ne2 Ba5 13.Kf1 0-0-0 14.Nf4 Qf5 15.Be7 Ne7 16.Nd3 Rhe8 17.g3 Nc6 18.Kg2 g5 19.h3 h5 20.c3 f6 (20...Bc3 21.Rc1 Bd4 22.Nd4 Qe4 23.Qf3 Qd4 24.Nc5-/+) 21.Qc2 Rd7 22.Rhc1 (22.Rhe1 Rde7=) 22...Rde7 23.Nb4 Qe4 (23...Qc2 24.Rc2 Bb4 25.cb4=) 24.Nc6= bc6 25.c4 Qc2 26.Rc2 dc4 27.Rc4 Kd7 28.a4 Bb6 29.Rbc1 Re6 30.h4 g4 31.Nd2 Re1 ½–½. Teske,Heike (2215) – Koenig,Uwe (2355), RSX7D – B20 – Siz. FluegelG.–1, 2011. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Nc3 d5 6.Bd3 Nc6 =.

5.c4 d5 6.ed5 ed5 7.Bb2 Nf6 8.Qe2 Be6 9.c5 Ba5 10.Nd2 0-0 11.0-0-0 Nc6 12.Nb3 b6 13.f3 Bf5 14.Na5 Na5 15.g4 Re8 16.Qf2 Bg6 17.Bb5 Re7 18.Ne2 a6 19.Ba4 Nc4 20.Nf4 Rb8 21.Ng6 hg6 22.Bb3 Reb7 23.Rhe1 a5 (better is 23...Nb2 24.Kb2 bc5 25.dc5 a5-/+) 24.Re2?? (24.Bc4 dc4 25.c6 Rc7=) 24...Qc7?? (better is 24...Nb2 25.Rb2 bc5 26.dc5 a4-+) 25.Bc4+= dc4 26.c6 Qc6-/+ 27.d5 Nd5 28.Qd4 c3 29.Qd5-/+ cb2 30.Kb2 Rc7 31.Qc6 Rc6 32.Rd7 Rbc8 33.Ree7 Rf6 34.Rb7 Rd8 35.Kc2 Rf3 36.Rb6 Rf2 37.Kb3 a4 38.Ka4 Ra2 39.Kb3 Rh2 40.Rbb7 Rf2 41.Kc3 Rf4 42.Ra7 Rf8 43.Kd3 Rg4 44.Ke3 Rg1 45.Kf2 Rb1 46.Kg3 Rb4 47.Rec7 Rb5 48.Kg4 g5 49.Kg3 Rb4 50.Kf3 g4 51.Kg3 g6 52.Kg2 Rb3 53.Rc4 g3 54.Rg4 Rc8 55.Rf4? Rc2 56.Kh3 Rh2 57.Kg4 g2 (57...g2 58.Ra8 Kg7 59.Rf7 Kf7 60.Ra7 Kf6 61.Ra6 Kg7 62.Ra7 Kh6-+) 0–1. Felczer,Kevin – Held,Marco, Bad Bevensen–ch U15, 1994. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Bc4 Nf6 6.Nc3 0-0 7.Nf3? Ne4 8.Ne4= d5 9.Bd5 ed5-/+ 10.Nc3 Re8 11.Be3? Bg4?? 12.0-0-/+ Nc6 13.Re1 Bf3 14.gf3? Bc7 15.Rb1 Qh4 16.f4 Bf4-+ 17.Bf4 Qf4 18.Re8 Re8 19.Nd5?? Qg5 (19...Qg5 20.Kh1 Qd5 21.f3 Nd4-+) 0–1. wwidener (1800) – hypermode (2270), net–chess.com, 2009.

5.Be3 Nf6 6.e5 Nd5 7.Nf3 Ba5 8.Bd2 Nc6 9.c4 Nde7 10.Bd3 Qb6 (10...d6!? 11.Ba5 Qa5 12.Qd2 Qc7 13.ed6 Qd6+=) 11.Ba5+/- Qa5 12.Qd2 Qd2 13.Kd2 (13.Nfd2?! Nd4 14.c5 Nd5+=; 13.Nbd2?! b6+/-) 13...b6 14.Nc3 Ba6 15.Ne4 Nf5 16.Kc3 Ke7 17.g4 Nh6 18.h3 f5 19.ef6! gf6 20.Ng3 (20.Nf6 Kf6 21.g5 Ke7 22.gh6 Raf8+=) 20...Nf7 21.Rhe1 Rac8 22.Nd2 Nd6 23.c5 Bd3 (23...Nb8 24.Nde4 Ne4 25.Ne4=) 24.cd6 (24.Kd3? Nb4 25.Ke2 bc5 26.dc5 Rc5-+) 24...Kd6 25.Kd3 Nb4 26.Ke2 Nc2 27.Nde4 Ke7 28.Nh5 Ne1 29.Ke1 Rhf8 30.Rd1 f5 31.gf5 Rf5 32.Nhg3 Ra5 33.Rd2 h5 (33...Rc1!? 34.Ke2 d5+=) 34.Ke2 d5 0–1. Kopkan,Pavel (1905) – Fic,Zbynek, Brno Duras BVK op–A, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Nf3 Nc6 6.c3 Nf6 7.e5 Nd5 8.Bd3 h6 9.0-0 0-0 (9...d6 10.Bb5 de5 11.Ne5+=) 10.Ba3+- Re8 11.Be4 Nde7 12.Qc2 (12.Nbd2 f5 13.Bd3 Nd5+-) 12...Bc7 13.Nbd2 d6 14.Rfe1 de5 15.de5 Kh8 (15...Nf5 16.Rad1 Bd7 17.Nb3+-) 16.Rad1 Bd7 (16...Ne5? 17.Ne5 Be5 18.Nf3+-) 17.Nc4 b5 (17...Nd5 18.Nd6 Bd6 19.Bd6+-) 18.Qd3 Nd5 19.Ne3 Ne5 20.Ne5 Be5 21.Nd5 (21.Bd5?! ed5 22.Qd5 Bc3 23.Qf7 Be6 24.Rd8 Bf7 25.Ra8 Ra8=+ (worse 25...Be1 26.Ra7 Kg8 27.Rb7+=)) 21...ed5 22.Bd5 (22.Qd5 Bg4 23.f3 Qh4 24.fg4 Qh2 25.Kf1 Bc3+-) 22...Rc8 23.Bf7 Rc3 (23...Qc7 24.Qd7 Bh2 25.Kf1 Re1 26.Ke1 Be5+-) 24.Qc3!! (worse 24.Qd7 Qd7 25.Rd7 Bh2 26.Kf1 Re1 27.Ke1 Rc7 28.Rd8 Kh7 29.Bg8 Kg6+-) 24...Bh2 (24...Bc3 25.Re8 Double attack) 25.Kh2 Qh4 26.Kg1 Rc8 27.Qc8! Bc8 (27...Bc8 28.Bg6 Mate attack) 28.Bg6 (28.Bg6 Be6 29.Re6 Qf2 30.Kf2 b4 31.Rd8) 1–0. juliangon (2580) – rmg1919 (1965), ChessWorld.net, 2013. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Nf3 Nc6 6.Bd3 Nd4+= 7.0-0 Ne7 8.e5? (8.Bb2 Nf3 9.Qf3 0-0+=) 8...Nec6 (8...Nf3 9.Qf3 Bd4 10.c3 Be5 11.Bf4-+) 9.Re1? (9.Bb2 Nf3 10.Qf3 Qg5+=) 9...Qc7?? (better is 9...Nf3 10.Qf3 Ne5-+) 10.Bb2+= 0-0 11.Bh7 Kh7 12.Ng5 (better is 12.Nd4 Rh8 13.Qd3 Kg8 14.Nb5+=) 12...Kg8?? (better is 12...Kg6 13.Qg4 f5+=) 13.Qh5 Rd8 (13...Nf3 14.gf3 Bf2 15.Kg2 Rd8 16.Qf7 Kh8 17.Qh5 Kg8 18.Qh7 Kf8 19.Qh8 Ke7 20.Qg7 Ke8 21.Qf7) 14.Qf7 Kh8 15.Re4 (15.Re4 Nf3 16.Qf3 Ne5 17.Qh5 Kg8 18.Qh7 Kf8 19.Rf4 Ke7 20.Qg7 Nf7 21.Nf7 Bf2 22.Kh1 Qc3 23.Qg5 Kf8 24.Nd6 Qf6 25.Qf6 Kg8 26.Qg7; 15.Qh5 Kg8 16.Qh7 Kf8 17.Qh8 Ke7 18.Qg7 Ke8 19.Qf7) 1–0. Sack – Laubert, DDR/FS4/313, 1984. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Nf3 Qc7 6.Bd3+= Nc6 7.c3 Nge7 8.0-0 d5 9.e5 Na5 (9...0-0 10.Ba3+=) 10.Qe2 Bd7 11.Ba3 Rc8 (11...Nc4 12.Be7 Ke7 13.Nbd2+=) 12.Bd6 (12.Ng5 h6 13.Qh5 g6=) 12...Qd8+= 13.h3 Nc4 14.Bc4 (14.Nbd2 Nb2 15.c4 dc4 16.Nc4 Nc4 17.Bc4 Nf5+=) 14...Rc4 (worse 14...dc4 15.Nbd2+-) 15.Nfd2 (15.Qd3!?+=) 15...Rc8 16.Nb3 Nf5 17.Ba3 a6 18.Qf3 (18.Qb2 Qg5 19.N1d2 Nh4=+) 18...Bb5 19.Re1 Qg5 20.Qg4 Qg4 21.hg4 Ne7 22.Nc5 Rc7 23.Re3 Bc5 (better 23...h5!? 24.g5 h4-/+) 24.Bc5= Ba4 25.Nd2 Bc2 26.Rc1 Bg6 27.c4 dc4 28.Nc4 (worse 28.Rc4 Nd5 29.Ra3 Kd7=+) 28...0-0?? (28...Nd5!? 29.Rb3 Nf4 30.Nd6 Kd7+=) 29.Be7 (better 29.Bd6 Rfc8 30.Bc7 Rc7 31.Ree1+-) 29...Re7+- 30.Nd6 h6 ½–½. Prabhugaonkar Aditee Aman – Nastase,A_C, WY_G__1_48 U12, 2013. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.f4 Ba5 6.c3 =.

5.f4 d5 6.e5 Nc6 7.Nf3 Nge7 8.c3 Bd7 9.Bd3 Rc8 10.Nbd2 Ba5 11.Bb2 Ng6 12.g3 a6 13.Rc1 h5 (13...0-0 14.Ba3 Nce7 15.Bc5=) 14.h4 (14.Bg6 fg6 15.Ba3 Ne7+=) 14...b5 15.Ng5 Qb6 16.a3 Nce7 17.0-0 (17.Nb3 Nf5=) 17...Nf5 (17...Bc3 18.Rc3 Qd4 19.Kh2 Rc3 20.Bg6 Ng6 21.Rf3 Rf3 22.Bd4 Ra3 23.Bc5=) 18.Rf3 Bc3?? (better is 18...Nge7+=) 19.Bc3+- Rc3 20.Rc3 Qd4 21.Kh1 Ng3 (21...Qc3 22.Bf5 Qc5 23.Bg6 fg6 24.Nb3 Qa3 25.Qc2+-) 22.Rg3 Qc3 23.Nf7! Nf4 (23...Kf7 24.Bg6) 24.Nd6 (24.Nb1 Nd3 25.Rd3 Qb2 26.Nh8 Qe5+-) 24...Kd8?? (24...Kf8 25.Qe1 Nd3 26.Qf1 Ke7 27.Rg7 (27.Qd3 Qe5 28.Nb7 Rf8-/+) 27...Kd8 28.Qf6 Kc7 29.Rd7 Kb6 30.Nf7=) 25.Qg1 (better is 25.Nb1 Qd4 26.Nf7 Ke8 27.Nh8 Qf2 28.Rg7 Bc6+-) 25...d4? (25...Rf8 26.Bb5 Qe5 27.Nb7 Kc7 28.Rg7 ab5 29.Qc5 Kb8 30.Qf8 Ka7+-) 26.N2e4 Bc6 27.Rg7 Qd3 (27...Be4 28.Be4 Qh3 29.Qh2 Qe3 30.Nf7 Ke8+/-) 28.Qg5 1–0. Suchsland,Helmut (1785) – Keze,Arnis (2045), Wch Seniors, 2002. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.f4 d5 6.e5 f5 7.Nf3 (7.Qh5 g6 8.Qd1 Qh4 9.Ke2 Nc6=) 7...Ne7 (7...Qd7 8.c3+=) 8.Be2 (8.Ba3 Ba5 9.Nfd2 Qb6 10.Qh5 g6=) 8...Bd7 9.0-0 (9.c3 g6=) 9...0-0 (9...Qc8 10.Rf2=) 10.Na3 (10.Ba3 Re8=) 10...Bc6 11.Nb5 (11.Rb1 Nc8=) 11...Qd7 (11...Bb5 12.Bb5 a6 13.Ng5 ab5 14.Ne6=) 12.Ba3 (better is 12.Nd6!?+=) 12...Bb5+= 13.Bb5 Qb5 14.Be7 Rc8 15.a3 (better is 15.Bd6!?+=) 15...Nc6 16.Bh4 Qa4 (16...Qc4 17.Bf2 Nd8 18.a4-/+) 17.Bf2? (17.c3 Qd1 18.Rfd1 h6+=) 17...Na5 (17...Nd8 18.Rb1 Qc2 19.Rc1 Qd1 20.Rfd1-/+) 18.Rc1? (18.Ng5!? Qe8 19.Nf3+=) 18...Qa3 (18...Rc6 19.Qd3-/+) 19.Ng5 (19.Ra1 Qf8-/+) 19...Qe7 20.Qh5 (20.Ra1 Rc4 21.Nf3 Nc6-+) 20...h6 21.g4?? (better is 21.Nf3-+) 21...Qe8 22.Qh4 Qg6 23.Ne6 Qe6 24.g5 Qg6 25.Kh1 hg5 26.fg5 Qh7 27.Qg3 g6 28.Bg1 Nc4 29.Rf4 Kf7 30.Rcf1 Ke6 31.Qb3 Qe7 32.Qg3 Nd2 33.Rd1 Nc4 34.h4?? Rh8 35.Bf2 a5 36.Kg2 a4 37.Be1 Ba5 38.Ba5 Ra5 39.Rb1 b5 40.Qe1 a3 41.Kg3 a2 42.Ra1 Ra3 43.Kf2 Re3 44.Qc1 Ra8 45.Rf3 Rf3 46.Kf3 Qb4 47.c3 Ra3 48.Ke2 Rc3 49.Qe1 Qb2 50.Kf1 Ne3 (50...Ne3 51.Qe3 Re3 52.Rd1 Qe2 53.Kg1 Rg3 54.Kh1 Qg2) 0–1. Suchsland,Helmut (1780) – Rufft,Wolfgang (1975), Hessen–ch Seniors, 2002. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.f4 d5 6.e5 Nh6 7.Bd3 =.

5.f4 Ne7 6.Nf3 d5 7.e5 Nbc6 8.c3 Bd7 9.Bd3 Ng6 10.0-0 0-0 11.Kh1 f5 12.Rg1 Rc8 13.g4 fg4 (13...Nge7 14.Ba3+=) 14.Rg4 (14.Ng5 Nf4 15.Bh7 Kh8 16.Qg4 Ne5 17.de5 Bg1 18.Bf4+- (18.Qg1?! Nh3 19.Nh3 Kh7=; 18.Kg1?? Qg5 19.Qg5 Nh3 20.Kg2 Ng5 21.Bg5 Kh7-+)) 14...Be8 15.Ng5 Qd7 16.Nh7 Kh7 17.Rh4 (better is 17.Rg6!? Kg8 18.Rg1+=) 17...Kg8+= 18.Qh5 Rf5 19.Qh7 Kf7 20.Rg4 Ke7 (better is 20...Nce7!? 21.h4 Qa4+=) 21.Bf5 ef5 22.Ba3 Kd8 23.Rg6 Bg6 24.Qg6 Nd4 25.cd4 Bd4 26.Nc3 Bc3 (26...Rc3 27.e6 Passed pawn; 26...Bc3 27.e6 Passed pawn) 27.Qg5 (27.Rg1 b5 28.e6 Qc6+/-) 27...Ke8 28.Rg1 d4 (28...Rc6 29.Qh5 Kd8 30.Qh8 Qe8 31.Qg7+/-) 29.Qh5 (better is 29.Qg7 Qg7 30.Rg7+=) 29...Qf7?? (better is 29...Kd8=) 30.Rg6+- Qd5 31.Kg1 Bb4 (31...Kd7 32.Qf5 Kc7 33.Rg7 Kb6 34.Qc8 Qe4 35.Qc7 Ka6 36.Qc4 Ka5+-) 32.Rg7 (32.Rg7 Kd8 33.Qh8 Qg8 34.Qg8 Bf8 35.Qf8) 1–0. Tartakower,Saviely – Schenkein,Joachim, Barmen–D, 1905. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Bf4 Nf6 6.f3 (6.e5 Nd5 7.Qg4 Nf4 8.Qf4 Nc6=) 6...0-0 7.Bd6 Re8 8.Bc4 (8.c3 Bc7 9.Bc7 Qc7=) 8...Nc6 9.Ne2 e5 10.c3 ed4 11.cd4 (11.Nd4? Nd4 12.cd4 Ne4 13.Bf7 Kf7 14.Qb3 Re6 15.fe4 Qh4 16.Kd1 Bd4 17.Qf3 Qf6-+) 11...Ne4 (11...Nd4 12.Nd4 Ne4 13.Bf7 Kf7 14.fe4 Qh4 15.Bg3 Qe4 16.Ne2=) 12.fe4+= Qh4 13.Bg3 Qe4 14.0-0 d5 15.Nbc3 Bd4 16.Nd4 Qe3 17.Bf2 Qc3 18.Bd5 Ne5 19.Nb5 Qa5 20.Nd6 Re7 21.Bg3 Qc5 22.Kh1 Bg4 23.Qd2 Be6 24.Bb7 ½–½. Valcarenghi,Cristina – Feliciano,Vanessa, Catarinense–ch (Women), 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.c3 d5

6.ed5 Qd5 (6...ed5!? 7.Nf3 Nc6=) 7.Nf3= Nf6 8.Ba3 Nc6 9.Be2 (9.Nbd2 Ba5 10.Bc4 Qf5+=) 9...Qa5 (9...e5!? 10.0-0 e4=) 10.0-0+= Bd7 (10...Nd5 11.Qb3 Nf4 12.Re1+/-) 11.Qb3 (11.Nfd2 Bc7+/-) 11...0-0-0 (11...Nd5!?+=) 12.Nbd2+/- e5?? (better is 12...Nd5 13.Ne4 Be8+/-) 13.Nc4+- Be6 14.Na5 Bb3 15.Nc6 (15.ab3?! Ba5 16.Ne5 Rhe8 17.Nc6 bc6 18.Ba6 Kb8+-) 15...bc6 16.ab3 ed4 17.Ba6 Kc7 18.cd4 1–0. Valverde,Mario (2055) – Coggiola,Leandro Damian (1845), CiF, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d5)

6.e5 Nc6 7.Bd3 f6 8.Qh5 Kd7 9.Nf3 Kc7 10.0-0 Bd7 11.a4 Qe8 12.Qg4 g6 13.ef6 e5 14.de5 Bg4 15.Bf4 Be6 16.Nbd2 h6 17.Rfd1 g5 18.Bg3 Rc8 19.c4 d4 20.c5 (20.Ne4 Qf8-+) 20...Ba5 (better is 20...Bc5!? 21.Ne4 g4 22.Nfg5 hg5 23.Nc5-+) 21.Ne4 Qd7 22.Rab1 Bb4 (22...g4 23.Nd6 Rb8 24.Nh4-+) 23.Nd6 a5 24.Bb5 Qh7 (better is 24...Bc5 25.Bc6 Qc6 26.Rbc1-+) 25.Bc4?? (better is 25.Bd3 Nf6 26.Bh7 Nh7 27.Nc8 Rc8 28.Nd4 Nd4 29.Rd4 Bc5 30.Rd2+=) 25...Bc4-+ 26.Nc4 Kd7 (better is 26...Kb8 27.Nd6-+) 27.Nb6 Ke6 28.Nc8 Nf6 29.Nd6? Ne4 30.Nb5 Rd8 31.Nd6 Nc3 32.Rb3 d3 33.Rc3 Bc3 34.Nb7 d2 35.Nd2 Rd2 36.Rd2 Bd2 (36...Bd2 37.Nd8 Nd8-+; 36...Qb1 37.Rd1 Qd1) 0–1. Kroutikov,Arkadi – Schastock,Erwin, It (open), Berlin (Germany), 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d5)

6.e5 Qc7 7.Nf3 f6 8.ef6 Nf6 9.Bd2 0-0 10.Bd3 Nc6 11.0-0 e5 12.de5 Ne5 13.Ne5 Qe5 14.Na3?? (better is 14.Qe2 Qc7 15.Kh1-/+) 14...Ng4-+ 15.g3 Nf2 16.Bf4 (16.Rf2 Rf2 17.Bh7 Kh7 18.Qb1 Bf5 19.Qb6 Rd2-+) 16…Nd1 (16...Nd1 17.Kh1 Nf2 18.Rf2 Qc3-+) 0–1. Bradley,Alan – Arenas Vanegas,David (2365), Dos Hermanas Internet qual–C, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d5)

6.e5 Ne7 7.Bd3 0-0 8.Bg5 Nd7 9.Qh5 g6 10.Qh4 f6?? (better is 10...Re8+/-) 11.ef6+- Nf5 12.Bf5 (12.Bf5 Qe8 13.Bh3+-) 1–0. Arnaudov,Petar (2190) – Orlicek,Karel (1855), 10th Kesarovski–Stanchev Mem, 2011. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 Ne7 6.Bd3 d5 7.e5)

6.e5 f5 7.ef6 Nf6 8.Bd3 0-0 9.Nf3 Nc6 10.0-0 e5 11.de5 (worse is 11.Ne5 Ne5 12.Ba3 Nd3 13.Bf8 Bf5-+ (13...Qf8?! 14.Qd3 Bd7 15.Nd2-/+; 13...Kf8?! 14.Qd3 Qd6 15.Nd2-/+)) 11...Ng4 12.h3 (12.Ba3 Re8 13.Bd6 Bc7+= (worse is 13...Nge5 14.Ne5 Ne5 15.Bh7 Kh8 16.Bc2+=)) 12...Nge5 13.Ne5 Ne5 14.Bh7 Kh7 15.Qh5 Kg8 16.Qe5 d4 (16...Bc7 17.Qh5=) 17.Bg5 Qd7 18.c4 Qc6 19.Nd2 Rf5 20.Qg3 Be6 21.Rae1 Raf8 22.Bh6 (22.Be7 Re8 23.Bb4 Bc7+=) 22...R5f7= 23.Bg5 Bf5 (23...Bc4 24.Rc1 Bc7 25.f4+=) 24.Qb3 a5 (24...Ba5 25.Re5 Bd2 26.Bd2=) 25.c5 (better is 25.Re7+=) 25...a4?? (25...Bc5 26.Re5 a4 27.Qd5 Qd5 28.Rd5-/+) 26.Qg3?? (26.Qb6 Bd3+-) 26...Qg6?? (better is 26...Bc5 27.Nf3 Qb5=) 27.cb6+- Bd3 28.f4 Bf1 29.Rf1 Qc2 30.Nf3 d3 31.Ne5 d2 32.Qf3 Qf5?? 33.Nf7 Qf7 0–1. Bradley,Alan – Riel,George, Dos Hermanas Internet qual–A, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d5)

5.c3 d6

6.Bd3 Nd7 7.f4 Ne7 8.Nf3 a6 9.Ba3 Nf6 10.0-0 0-0 11.e5 de5 12.fe5 (12.Ne5?! Re8=) 12...Ng4 (better is 12...Nfd5!? 13.Bh7! Kh7 14.Ng5 Kh6+/-) 13.Bh7!+- Kh8 (13...Kh7 14.Ng5 Double attack) 14.Bc2 f5 15.Qe1 Kg8 16.h3 Nh6 17.Nbd2 Bd7 18.Bb3 (18.Rb1 Re8 19.Nc4 Bc7+-) 18...Re8 19.Be7 Qe7 20.Nh4 Bb5 (20...Rec8 21.Nc4 Bd8 22.Ng6+-) 21.Rf5 (better is 21.Nf5!? Nf5 22.Rf5+-) 21...Nf5+/- 22.Nf5 Qg5 23.Nd6 Bc6 24.Qe2 Re7 25.c4?? (better is 25.Rf1+-) 25...Bd4-+ 26.Kh1 Qg2! 27.Qg2 Bg2 28.Kg2 Ba1 29.Nf3 Rf8 (29...b6!? 30.c5 bc5 31.Nf5-+) 30.c5 Rf3! 31.Kf3 Be5 32.Ke4 Bh2 (32...Bb2!? 33.Nc4 Bc3 34.Nd6-+) 33.Nf5 Kf8 (33...Rc7!? 34.Be6 Kf8-+) 34.Ne7+= Ke7 35.Ba4 g5 36.Bb3 Bg1 37.Ke5 Bh2 38.Ke4 Kd7 39.Kd4 e5 40.Kd5 ½–½. Boulier,Rene (1990) – Le Moy,Patrick (1690), Fouesnant op, 2005. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d6)

6.Bd3 e5 7.d5 (7.Nf3 Qc7+=) 7...Nd7 8.Ne2 Nc5 9.0-0 Ne7 10.Kh1 (10.Be3 0-0=+) 10...0-0 11.f4 ef4 12.Bf4 Ng6 13.Bg3 Qe7 The backward pawn on e4 becomes a target 14.Qc2 Ne5 15.Be5 Qe5 16.Nd2 Bg4 17.Nc4 Qe7 18.Nd4 Rac8 (18...Bc7 19.Ne3 Bd7 20.Nef5=) 19.Rae1 (19.Nb6 ab6 20.Rab1 Qg5+/-) 19...Nd7 20.Nb6 ab6 (20...Nb6 21.e5 g6 22.Re4=) 21.Bb5 (21.e5 Ne5 22.Bh7 Kh8+/-) 21...Ne5+= 22.c4 g6 (22...Rc5 23.Qb3+=) 23.h3 Bd7 24.Qb3 Bb5 25.cb5 (worse 25.Qb5 Rc4 26.Nf3 Nf3 27.gf3 Rc2=+) 25...Rc5 26.Rf2 Rfc8 27.Ref1 (27.Qg3 Rc4 28.Nf5 Qf8+=) 27...Rc1 (27...Rc3 28.Qb1=) 28.Qe3 Rf1 (28...R1c3 29.Qh6+=) 29.Rf1+/- Rc4 30.Qf2 (30.Rf4 Qg5 31.Ne6 Qe7=) 30...Nd7 31.Qe3 (31.Nf3 Nc5 (worse 31...Qe4 32.Nd2 Qd5 33.Nc4 Qc4 34.Rd1+/-) 32.Ng5 f5 33.ef5 Qg5 34.fg6 Qe7+=) 31...Nc5=+ 32.Rf4 h5 (better 32...f5=) 33.Nf5?? (better 33.Kg1=) 33...Qe5?? (33...gf5 34.Rf5 Ne4-+) 34.Qg3?? (better 34.Nh6 Kg7 35.Rf7 Kh8 36.Rf1 Re4 37.Qf3+-) 34...Ne4-+ (34...Re4?! 35.Re4 Qe4 36.Ne3-/+) 35.Nh6 Kh7 36.Rf7 Kh6 37.Qe3 (37.Qe5 de5 38.h4-+) 37...Ng5 (better 37...g5 38.Kg1 Qd5-+) 38.Qf3?? (38.Qe5 de5 39.Rb7-+) 38...Nf3 39.gf3 (39.Rh7 Kh7 40.gf3 Qe1 41.Kg2 Rc2) 39...Rc1 (39...Qe1 40.Kg2 Rc2) 40.Kg2 Qe2 (40...Rc2 41.Kf1 Qa1) 41.Kg3 Rg1 42.Kf4 Qe5 0-1. blitzbullet (2385) - cukus (2635), Rated Bullet game, lichess.org, 2018.

6.g3 Nf6= 7.Bg2 0-0 8.Ne2 e5 9.0-0 Re8 10.Nd2 Nc6 11.Bb2 a6 12.h3 d5 13.ed5 Nd5 14.c4 Nf6 15.d5 Na5 16.Qc2 Bd7 17.Kh2 Rc8 18.Rac1 Bc5 19.f4 ef4 20.Nf4 Be3 21.Ne4? (21.Ne2 Nc4 22.Nc4 Bc1 23.Bf6 gf6 24.Nc1-/+) 21...Ne4-+ (21...Bc1?! 22.Nf6 gf6 23.Qc1 Rc4 24.Qd2=) 22.Be4 Rc4 (better is 22...Bc1!? 23.Bh7 Kh8 24.Rc1 Nc4 25.Bd3-+) 23.Bh7 Kh8 24.Ng6 Kh7?? (24...fg6 25.Qg6 Bh6 26.Qh6 Re2 27.Kh1 Rb2+-) 25.Nf8 Kg8 (25...Kh6 26.Qh7 Kg5 27.Qg7 Kh5 28.Qf7 Kh6 29.Qg6) 26.Qh7 Kf8 27.Rf7!! (27.Rf7 Kf7 28.Qg7) 1–0. Herrou,Christophe (2095) – Narchi,Marcel (2085), FRA–chT2 North, 2008. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 d6)

5.c3 Ne7

6.Bd3 Nbc6 7.Nf3 d6 8.Ng5 Bd7 (8...f6 9.Nf3=) 9.Qh5 Ng6 10.e5 (10.Na3+=) 10...Nce5?? (better 10...de5 11.Nh7 Nce7-/+) 11.de5+- Ne5 12.0-0 (12.Be4 h6+-) 12...g6 (12...h6 13.Ne4 0-0 14.Bc2+-) 13.Qh6 Qf6?? (better 13...Qe7 14.Be2 Bc6+-) 14.Ne4+- (14.Nh7?! Bf2 15.Rf2 Qf2 16.Kf2 Ng4 17.Kg1 Nh6 18.Nf6 Kd8=) 14...Qe7 15.Be2 (15.Bg5 f6 16.Bf6 Ng4 17.Be7 Nh6 18.Bd6 Nf7+-) 15...Qf8 (15...f6 16.Ba3 Bc5 17.Bc5 dc5 18.Rd1+-) 16.Nf6 (16.Qf8!? Rf8 17.Nd6 Ke7+-) 16...Kd8 17.Qh4 (17.Qf8 Rf8 18.Ba3 Bc7+-) 17...Kc7 (17...h6 18.Rd1 g5 19.Qg3+-) 18.Na3 (18.Bh6 Qc8+-) 18...Rc8 (18...h6 19.Be3 Be3 20.fe3 Bc6+-) 19.Bh6 (19.Nh7?! Qg8 20.Qe7 Qh7=+; 19.Nd7?! Kd7 20.Bh6 Qg8+-) 19...Qd8 20.Rfd1 (20.Bg7 h6 21.Bh8 Qh8 22.Nd7 Kd7+-) 20...Bc6 (20...Bc5 21.Nc2+-) 21.Nb5 (21.Bg7 h6+-) 21...Bb5 22.Bb5 Kb8 (22...a6 23.Be2 Nd7 24.Rd6 Kd6 25.Rd1 Kc7 26.Qg3 e5 27.Nd7+-) 23.Bf4 (better 23.Bg7+-) 23...Qc7?? (23...Bf2 24.Qf2 Qf6 25.Rd6 g5+-) 24.Rd6! Qc3 (24...Qd6 25.Nd7) 25.Nd7 (better 25.Be5 Qa1 26.Ba1 Rc1 27.Bf1 Ra1 28.Nd7 Ka8 29.Nb6 ab6+-) 25...Ka8 (25...Nd7 26.Rc6 (26.Rd7?! e5 27.Rb1 ef4+=; 26.Bd7?! e5 27.Rdd1 ef4 28.Bc8 Rc8+-) 26...e5 27.Rc3 Rc3 28.Bd7 ef4 29.Qf6+-) 26.Nb6 (better 26.Be5 Bd8 27.Qf4+-) 26...ab6 27.Be3 (better 27.Rad1+-) 27...Qa1-+ 28.Bf1 Rc4?? (28...Nc4 29.Rd7-+) 29.Rd8? (better 29.Bd4 Rd4 30.Rd4=) 29...Ka7-+ 30.Qe7 (30.Rd4 Rhc8-+) 30...Rd8 31.Qd8 Rb4 (31...Qa2? 32.Qb6 Kb8 33.Bc4 Qa1 34.Bf1+-) 32.Qd6 (32.Qd2 Rb1 33.Qe2-+) 32...Rb1 ½–½. Hilbert,Stephan J – Vollmer,Steve, FICGS, 2015. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 Ne7)

6.Bd3 d6 7.Nf3 Nbc6 8.0-0 0-0 9.e5 de5 10.de5 (worse is 10.Ne5 Nd4 11.Nc4 Ndc6+=) 10...Ng6 11.Re1 Qc7 12.Ba3 Rd8 13.Bd6 Qd7 14.Bg6 hg6 15.Qe2 Bc7 16.Bc7 Qc7 17.Na3 a6 18.Rad1 b5 19.Rd8 Nd8 20.Nb1 Bb7 21.Qe3 Rc8 22.Nfd2 Qc6 23.f3 Qc5 24.f4 (24.Qc5 Rc5 25.Nb3 Rc4=) 24...Bd5 (24...Qd5 25.Ne4 Qa2 26.Nbd2+=) 25.Nb3 Qe3 26.Re3 Nb7 27.N1d2 Nc5 28.Nc5 Rc5 29.a3 Kf8 30.Kf2 Ke7 31.g3 Kd7 32.Ke2 Kc7 33.Kd1 Kb6 34.Kc2 Ka5 35.Nb3 Bb3 36.Kb3 Rd5 0–1. Lorkiewicz,Ziemowit – Trzpil,Slawomir, Otwarte Mistrzostwa Wojewodztwa Lubelskiego Poland, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 Ne7)

6.f4 d5 7.e5 Nbc6 8.Bd3 Bd7 9.Nf3 Rc8 10.0-0 a6 11.Bd2 Na5 12.Na3 Nf5 13.g4 Ne7 14.Qe1 g6 15.Nc2 Nc4 16.Bc4 Rc4 17.Ne3 Rc8 18.Qh4 h6 19.Rfc1 Bc6 20.Kf2 g5 21.Qg3 (21.Qh5 gf4 22.Ng2 Ng6=) 21...Ng6 22.Ng2 gf4 23.Nf4 Nf4 24.Qf4 h5 25.gh5 Rh5 (25...Qe7 26.h6=) 26.Rg1 (better is 26.Qg4!? Rh8 27.Qg7+/-) 26...Qe7= 27.Rg7 Rf5 28.Qh6 ½–½. Zapata,Alvaro – Achutti,Andre (2040), Rio de Janeiro tt U20, 1999. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 Ne7)

6.Qg4 Ng6 7.Nf3 0-0 8.Bd3 d6 9.h4 f5 10.Qh5 Qe8 11.0-0 Ne7 (11...Ne5! 12.Qe8 Nf3 (12...Re8? 13.de5 de5 14.Ne5+-) 13.gf3 Re8=) 12.Qe8+= Re8 13.ef5 Nf5 14.Re1 Bd7 15.Bf4 Bc7 16.Nbd2 Na6 17.Rab1 Rab8 18.g4 Nh6 19.Ng5 e5 20.Bh7 Kf8 21.de5 de5 22.Be3 Bc6 23.Bg6 Re7 24.f3 Rd8 25.Nh7 Kg8 26.Bg5 Rd2 27.Bd2 (27.Be7 Bf3 28.Ng5 Bc6+-) 27...Bf3 28.Rf1 e4 29.Rbe1 Rd7?? (better is 29...Bb6 30.Be3 Be3 31.Re3 Re6+-) 30.Rf3! Bb6 (30...ef3 31.Re8 Mate attack) 31.Kh1 Rd8 32.Rf4 (better is 32.Re4!? Nc5 33.Rd4 Ne6 34.Rd8 Bd8+-) 32...Nc5 33.g5 Nd3 34.gh6 Ne1 (34...gh6 35.Rf7 Rd6 36.h5+-) 35.Be1 (35.Rf7 Be3 36.Rg7 Kh8 37.Nf6 Rd2 38.Rg8) 35...e3 (35...gh6 36.Rf7 Rd6 37.h5+-) 36.Rf8! Rf8 37.Nf8 Kf8 (37...gh6 38.Nd7 Kg7+-) 38.h7 (38.h7 Bc7 39.h8Q Ke7 40.Qe8 Kd6 41.Bg3 Kc5 42.Qe3 Kc6 43.Be8 Kd5 44.Qd4 Ke6 45.Qd7 Kf6 46.Qf7) 1–0. Blum,Rainer – Schreiber,Joachim, Ruhrgebiet VK1, 1999. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.c3 Ne7)

5.Nf3 d5

6.ed5 Ba5 7.Nbd2 Qd5 8.c4 Qe4 9.Be2 Nc6 10.0-0 Bd2 11.Qd2 (11.Bd2?! Nd4 12.Nd4 Qd4=) 11...Nge7 12.Ba3 Bd7 13.Rab1 b6 14.Rb5 Ng6 15.Bd6 Nce7 16.Bd3 Qb7 17.Rg5 Bc6 18.d5! Bd7 (18...ed5 19.Bg6) 19.Re1 f6 20.Be7 Ke7 21.Bg6 (better is 21.de6!? Bc6 22.Bg6 hg6 23.Rg6+-) 21...hg6+/- 22.Rg6 Kf7 23.Qd3 Rae8 24.Nd4?? (better is 24.Rg3 Rh6 25.de6 Re6 26.Re6 Be6 27.Nd4+/-) 24...ed5+= 25.Re8 dc4 1–0. Cherednichenko,Viktor (1990) – Melnikov,Victor (2005), Voronezh–ch Voronezh, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.ed5 ed5 7.Bb5 Bd7 8.Bd7 Nd7 9.0-0 White castles and improves king safety (better is 9.Ba3 Ne7 10.Qe2=) 9...Ngf6 (9...Ne7!?=) 10.Ba3 (10.Re1 Ne4 11.Nc3 Ndf6+/-) 10...Ne4 11.Re1 f5 12.Nc3 (12.c3!? Bc7 13.Qa4+/-) 12...Ba5 13.Ne4 fe4 (13...de4 14.c3 Qf6 15.Qb3+/-) 14.Nd2 Nf6 15.Rb1 White threatens to win material: Rb1xb7 15...Qd7 16.c4 dc4?? (better is 16...b6+= saving the game) 17.Ne4+- Be1 18.Nd6 Kd8?? a blunder in a bad position (18...Kf8 19.Rb7 Bf2 20.Kf2 Qc6 21.Nf5 Ke8 22.Qe1 Ne4 23.Kg1 Qb7 24.Nd6 Kd7 25.Nb7 Rhe8+-) 19.Nb7 Kc7 20.Qe1 Rae8 (20...Qd5 the last chance for counterplay 21.Bd6 Kc6+-) 21.Qa5 Kc8 22.Nd6 Qd6 23.Bd6 Kd7 (23...Nd5 doesn't change anything anymore 24.Qd5 Re1 25.Re1 Rf8 26.Qc6 Kd8 27.Qc7) 24.Rb7 Kc6 25.Qb5 Kd6 26.Qc5 Ke6 27.Qe5 1–0. Subramaniam,Rahul – Ferrer,Franklin, Fremont Weibel Quads, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

6.ed5 Qd5 7.Nc3 Qd8 8.Bc4 Qc7 (8...Nc6!?=) 9.Ne5 Nc6 10.Bb5 (10.Nb5 Ba5 11.c3 Qd8+/-) 10...Nf6 (10...Bd7 11.Bc6 Bc6 12.0-0=) 11.Ba3 (11.Bf4 Ba5 12.Qd2 Ne4 13.Nc6 Bc3 14.Bc7 Bd2 (14...Nd2?! 15.Ne5 Ke7 16.0-0-0=) 15.Ke2 Nc3 16.Kd2 Nb5 17.Na7 Ra7-+) 11...a6 12.Bc6 bc6 13.Na4 Ba5 14.c3 Nd5 15.Rc1 Nb6 (better is 15...Bb7!?+=) 16.Qg4 g6 (16...Na4?? 17.Qg7 c5 18.Qh8 Ke7 19.Qg7+-) 17.Nb6 Bb6 18.Nc4 c5 19.Qf3 Bb7? (19...Rb8 20.Qf6 Rg8 21.dc5 Bc5 22.Bc5 Qc5 23.Qf4+-) 20.Qf6 (better is 20.Qb7! Qb7 21.Nd6 Kd7 22.Nb7 cd4 23.Bc5+-) 20...Rg8 21.0-0 (21.Nb6 Qb6 22.Bc5 Qd8 23.Qd8 Rd8+/-) 21...Bd5? (better is 21...Ba7!?+/-) 22.Nb6+- Qb6 23.Bc5 Qc7 24.Rfe1 a5? 25.c4 Bb7 26.Re6! fe6 27.Qe6 Kd8 28.Bb6 Qb6 29.Qb6 Kc8 30.Rb1 Rb8 31.c5 Rd8 32.c6 Rd6 33.cb7 Rb7 34.Rc1 Kb8 35.Qd6 Ka7 36.Qc5 Ka6 37.Re1 a4 38.Re6 (38.Re6 Rb6 39.Qb6) 1–0. Stacy,P – Short,T, Detroit East op, 1983. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6) 6.ed5 Qd5 7.Qd3 Nc6 8.c4 Qd8 9.Bb2 Nf6 10.Be2 0-0 11.0-0 Bc7 12.Rd1 Ne7 13.Nc3 b6 14.Ne5 Bb7 15.Bf3 Bf3 16.Qf3 Qb8 17.Nb5 Be5? (better is 17...Rc8+=) 18.de5+- Ne8 19.Ba3 Nf5 20.Bf8 Kf8 21.Rd7 a6 22.Nc3 (22.Nd4 Qc8 23.Nf5 Qd7 24.Qa8 ef5 25.Qa6 Qe6+-) 22...Qc8 (better is 22...Ra7 23.Ra7 Qa7+-) 23.Rad1 Rb8 24.g4 Nh6 25.Ne4 Rb7?? (25...Qc4 26.Ng5 Qg4 27.Qg4 Ng4 28.Nf7 Rc8+-) 26.Qa3 Kg8 27.Qe7 Rd7 28.Rd7 1–0. Stahl,Heinz – Haertel,Volker, Darmstadt Weber Memorial op, 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Nc6 7.c3 Bd7 8.Bd3 Nge7 9.0-0 h6 10.Na3 a6 11.Nc2 Rc8 12.Ne3 0-0 13.Nh4 Na5 14.Ng4 Nf5 (14...Rc3 15.Nh6 gh6 16.Bh6 Rd3 17.Qd3+-) 15.Nf5 ef5 16.Nh6 gh6 17.Bh6 Qh4 (better is 17...Rc3 18.Qh5 Bd4=) 18.Qc1?? (better is 18.Bf8 Kf8 19.Qb1+/-) 18...Rfe8-/+ 19.Bg5 Qh5 20.Qf4? (20.Bf6 Bd4 21.e6 Bb5 (21...Bf6 22.ed7 Rf8 23.dc8R Rc8 24.Qf4+-) 22.ef7 Kf7 (22...Qf7?? 23.Qg5 Kf8 24.Qh6 Kg8 25.Qh8) 23.Bb5 Rg8-+ (23...Bf6?! 24.Be8 Re8 25.Rd1+=; 23...Kf6? 24.Be8 Qh8 25.Bd7+-)) 20...Qg4 (20...Rc3!? 21.Rab1 Rd3 22.Rb6 Nc6 23.Rb7 Rd4-+) 21.Qd2 Nc4 22.Qc1 Rc6 23.Re1 Bd4 (23...Rg6 24.Bc4 dc4-/+ (worse is 24...Rg5 25.Bd5 Rg6 26.Rb1+=)) 24.Be2= (24.cd4? Ne5 25.Qd1 Nd3 26.Qd3 Re1 27.Re1 Qg5-+) 24...Bf2 25.Kf2 Qe4? (better is 25...Ne5 26.Kg1 Qa4=) 26.Bf3+- Qd3 27.Rd1?? (better is 27.Bf6 Qd2 28.Qd2 Nd2 29.Bd5 Ne4 30.Kg1+-) 27...Ne5= 28.Be2 Qc3 29.Qc3 Rc3 30.Rd5 Bc6 31.Ra5?? (better is 31.Rd2+=) 31...Rc2-+ 32.Kf1 Re2! (32...Re2 33.Ke2 Nc4 34.Kf2 Na5-+) 0–1. Davy,Igor (1855) – L'Hermitte,Benjamin (2040), FRA–ch U18 Le Grand Bornand, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Nc6 7.c3 Nge7 8.Bd3 0-0? 9.Bh7!+- Kh7 10.Ng5 Kg8 (10...Kg6 11.h4 Qe8+-) 11.Qh5 Re8 12.Qh7 Kf8 13.Ba3 (13.Ba3 Nb4 14.Bb4 Bc5 15.Bc5 Qd6 16.Bd6 Bd7 17.Qh8) 1–0. Marshall,Frank James – Stodie, free Atlantic City, 1920.

6.e5 Nc6 7.c3 Nge7 8.Bd3 Ng6 9.0-0 a6 10.Ba3 Nce7 11.Nbd2 Bd7 12.Bb4 (12.c4 Nf4 13.Bc2 Ba5+=) 12...0-0 (12...Nf4 13.Bc2=) 13.Ng5 h6 14.Nf7?? (14.Bg6 fg6 15.Qb1 Bc7+=) 14...Kf7?? (better 14...Rf7 15.Qh5 Nf4 16.Bh7 Kf8-+) 15.Qh5+- a5 16.Be7 Qe7?? (better 16...Ke7 17.Qg6 Rf7+-) 17.Qg6 (17.Bg6?! Kg8+/-) 17...Kg8 18.Qh7 Kf7 19.Bg6 1-0. Galli,G (1810) - Castro Munoz,Andres Felipe (1655), XX Rio Grande Domingo Int, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3)

6.e5 Nc6 7.c3 Nge7 8.Bd3 h6 9.0-0 Nf5 10.Ba3 Bd7 11.g3 Nfe7 (11...g5 12.g4 Nh4 13.Nbd2=) 12.Nh4 (12.Nbd2+=) 12...Nd4? (12...Ba5 13.Qb3+=) 13.Qg4 (better 13.cd4!? Bd4 14.Nd2 Ba1 15.Qa1+-) 13...g5 (13...Bb5 14.Bb5 (worse 14.cd4 Bd3 15.Rd1 Bc2-/+; 14.Qg7?! Rg8 15.Bb5 Nb5 16.Qh6 Ba5=) 14...Nb5 15.Qg7=) 14.cd4 gh4 15.Nc3 (worse 15.Qh4 Nc6 16.Qd8 Kd8-/+) 15...a6 (15...Rg8!? 16.Qf4 Rc8=) 16.Rab1+= (worse 16.Qh4 Nc6 17.Qd8 Kd8-/+ (17...Nd8?! 18.Ne2=)) 16...Rc8 17.Ne2 Rc6 18.Rfc1 (18.Qh4 Nf5 19.Qf4 Qg5+-) 18...hg3 19.hg3 (19.fg3 Rc1 20.Rc1 Rg8=) 19...h5 (19...Rc1 20.Bc1 Bb5 21.Bb5 ab5 22.Rb5+=) 20.Qh4 (20.Qg7 Rg8 21.Qh7 Rc1 22.Bc1+- (22.Nc1?! Bd4 23.Bd6 Bc6=; 22.Rc1?! h4+-)) 20...Nc8= 21.Qf4 h4 (21...Rc1 22.Rc1 Na7 23.Nc3=) 22.Kg2+= h3 23.Kh2 Rg8 (23...Rc1 24.Rc1 Bc6 25.Ng1=) 24.Qh6 Qg5 25.Qh7 Qg7 26.Qh5 (better 26.Qg7 Rg7 27.Rc6 Bc6 28.Kh3+=) 26...Rh8=+ 27.Qf3 Rc1 (27...Kd8 28.Qf4=+) 28.Bc1= Bc6 29.Ba3 (29.Be3 Bd8=) 29...Kd7 30.Bc5 (30.Bb2 Na7=+) 30...Bc5-/+ 31.dc5 Qe5 (better 31...Na7-/+) 32.Qf7+= Ne7 33.Nf4 Rh6 (better 33...Re8!?+=) 34.Ng6+- (34.Ng6 Rg6 35.Bg6+-) 1–0. Nunes,Moezio Correia (1740) – Sousa Filho,A Lopes De (1970), Zonal, 2015. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Nc6 7.c3 f5 8.ef6 Nf6 9.Ba3 Bc7 10.Bb5 Bd6 11.Bd6 Qd6 12.Ne5 (12.0-0 0-0=) 12...0-0=+ 13.f4 Ne4 14.0-0 Bd7 (14...Ne5 15.fe5 Rf1 16.Bf1=+) 15.Bd3 (15.Bc6!? Bc6 16.Rf3=) 15...Ne5=+ 16.fe5 Rf1 17.Qf1 Qb6 18.Be4 Qb2 19.Nd2 Qc3 20.Bh7 Kh7 21.Nf3 (21.Nb3 Rc8=) 21...Qe3 (21...Rc8 22.h4=) 22.Kh1= Kg8 23.Re1 (23.Qc1 Qc1 24.Rc1 Rc8 25.Rc8 Bc8=) 23...Qf4 24.Qd3 Rc8 25.h4 (25.Qa3 Rc2+=) 25...a6 26.Qg6 Rc3 27.Rf1 Qh6 28.Qg4 Bb5 29.Rf2 Bd3 30.Ng5 (30.h5 Bf5 31.Qh4 Rc8=) 30...Bf5=+ 31.Qf4 Qh5 32.Kh2 Qg4?? (better 32...b5=+) 33.Qg4+- Bg4 34.Rf7 (34.Rf4 Bf5 35.g4 Rc2 36.Kg3 Rc3 37.Kf2 Rc2 38.Ke3 Rc3 39.Ke2 Bg6+-) 34...Rc8? (34...b5!?+-) 35.Rb7+- Kf8 (35...Bf5 36.h5+-) 36.Kg3 Bf5 37.Kf4 (better 37.Rf7 Kg8 38.Ra7+-) 37...Rc4+- 38.Nf3 Ra4? (better 38...Be4+-) 39.g4+- Be4?? (39...Bc2 40.Ng5 Rd4 41.Kg3 Rd3 42.Kf2 g6 43.Ne6 Kg8 44.Rg7 Kh8 45.Rg6 Ra3 46.Rh6 Kg8+-) 40.Ng5 Bg6 (40...Ra2 41.Ne6 Kg8+-) 41.Ne6 Ke8 42.Ng7 Kf8 (42...Kd8 43.Ne6 Kc8 44.Rg7+-) 43.Ne6 Ke8 44.Kg5 Be4 45.Kf6 Ra2 (45...Rd4 46.Re7) 46.Re7 1–0. Miciak,Maros (2095) – Toma,Rudolf (2080), Slovak, 2011. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Nc6 7.Be2 h6 8.0-0 Nge7 9.c3 Ng6 (9...Bd7 10.Na3=) 10.Re1 0-0 11.Bd3 Nce7 12.Ba3 Re8 13.Be7 Ne7 14.Qc2 Nc6 15.Na3 Bd7 16.Nb5 Bc7 17.Rab1 Rb8 18.Nc7 Qc7 19.Rbc1 (19.c4 dc4 20.Qc4 Rec8+=) 19...Na5 20.c4 (20.Qe2 Rec8+=) 20...dc4 21.Bc4 Nc4 22.Qc4 Qc4 23.Rc4 Rec8 24.Rec1 Rc4 25.Rc4 Rc8 26.Rc8 Bc8 27.Kf1 (27.Nd2 b5=) 27...Kf8 28.Ke2 Ke7 29.Kd3 Kd7 (29...b5 30.Nd2=) 30.Kc4 (30.Nd2 b6+=) 30...Kc6 31.a4 a6 32.a5 b5 33.ab6 Kb6 34.Nd2 Bb7 35.f3 Bd5 36.Kc3 g6 (36...f6!?=) 37.Ne4+= Be4 38.fe4 Kb5 39.d5 ed5 40.ed5 Kc5 41.d6 Kc6 42.Kb4 Kb6 (42...f6 43.ef6 Kd6 44.Ka5=+) 43.g4 (43.h4 a5 44.Ka4 h5=) 43...Kc6 44.Ka5 (44.h4 g5 45.hg5 hg5-+) 44...Kb7 (44...f6!? 45.ef6 Kd6 46.Ka6 Ke6=+) 45.h4+= h5?? (better 45...g5 46.h5 Kc6 47.Ka6 f6 48.ef6 Kd6=) 46.g5+- Kc6 47.Ka6 Kd7 48.Kb7 Kd8 (48...Ke6+-) 49.Kc6 Kc8 50.d7 Kd8 51.Kd6 f6 52.e6 f5 (52...fg5 53.e7) 53.e7 1–0. Zell,Hannah – Kriuckova,Sonia, DEM w U12, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Bd7 7.c3 Ne7 8.Ba3 (8.Bd3 Nbc6+=) 8...0-0 9.Bd3 f6 10.ef6 Rf6 11.Bh7 (11.Qc2!? h6 12.0-0+=) 11...Kh7=+ 12.Ng5 Kg8 (better 12...Kg6 13.Qg4 Qf8=+) 13.Qh5+- Rh6 14.Qf7 Kh8 15.Be7 Qe8 16.Bf8 Rg6 17.h4 Qf7 18.Nf7 Kg8 19.Ne5 Rh6 20.Bd6 Be8 21.g4 Nd7 22.Na3 Rc8 23.Rh3 Ba5 24.Rc1 Ne5 25.Be5 (worse 25.de5 d4=) 25...Bb4 26.Nb1 (worse 26.cb4 Rc1 27.Kd2 Ra1-/+) 26...Be7 27.h5 g6 28.Kd2 gh5 29.Rch1 h4 30.f4 Bg6 31.g5 Rh7 32.Rh4 Rh4 33.Rh4 Kf7 34.Kc1 Rc6 35.Rh8 Bf8 36.Rh2 b5 37.Kb2 b4 (37...a5 38.Rh1+-) 38.Rh3 (38.cb4!? Bb4 39.Rh8+=) 38...a5+= 39.a3 (39.cb4 Rc2 40.Ka1 Rc1=) 39...ba3 (39...Bb1!? 40.Kb1 bc3+=) 40.Na3+- Rb6 41.Ka2 a4 42.c4 dc4 43.Nc4 Rc6 44.Na3 Bf5 45.Rg3 Bb4 46.Rg2 (46.Re3 Rc1=) 46...Be4= 47.g6 ½–½. juliangon (2590) – ClausGamborg (1915), ChessWorld.net, 2014. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Ne7 7.Bd3 0-0 8.Bh7+/- Kh7 9.Ng5 Kg6 10.h4 Qe8 11.Qg4 (11.Qg4 Nf5 12.h5 Kh6 13.Ne4 Kh7 14.h6+-) 1–0. Karabiyik,Ozgur (2025) – Paetzold,Ortwin (1920), IECC, 1998.

6.e5 Ne7 7.Bd3 Ba5 8.c3 Qc7 9.Bd2 Nd7 10.0-0 a6 11.Ng5 Nf8 12.f4 g6 13.Na3 Bc3 14.Rc1 Bd4=+ 15.Kh1 Bc5 16.Nc2 h6 17.Nf3 b6 18.Ne3 Qa7 19.Ng4 Ng8 20.Nh4 Qe7 21.Qe1 h5 22.Ne3 Nh6 23.a4 Bb7 24.Nf3 Qd7 25.a5 Rc8 26.ab6 Bb6 27.Rb1 Bd8 28.Nd4 Ng4 29.f5? Ne3 30.Qe3 ef5?? 31.Bf5+/- gf5 32.Nf5 Bc7?? 33.Rb7 Rh7?? 34.Qg5 Qe6 35.Bb4 Qe5 36.Re1 (36.Re1 Qe1 37.Be1+-) 1–0. Bugarija,Zdravko – Stimac,Josip, Zadar op, 1996.

6.e5 Ne7 7.Bd3 Nbc6 8.c3 a6 9.0-0 Ba7 10.a4 Bd7 11.Re1 0-0? (better is 11...Rc8+=) 12.Bh7!+- Kh8 (12...Kh7 13.Ng5 Double attack) 13.Bd3 (13.Ng5!? Ne5 14.Qh5 Ng4 15.Bg6 Nh6 16.Nf7 Rf7 17.Bf7 Neg8+-) 13...f5 (better is 13...Qe8+-) 14.ef6! Rf6 (14...Rf6 15.Bg5; 14...gf6 15.Ng5 Combination) 15.Bg5 Rf8 (15...Qb8+-) 16.Ne5 Be8 17.Ng6!! Kg8 (17...Ng6 18.Qh5 (18.Bd8); 17...Bg6 18.Bg6 Combination) 18.Nf8 Kf8 19.Re3 (better is 19.Re6!? Qd7 20.Qf3 Kg8+-) 19...Qd7 20.Rh3 Kg8 21.Bh7 Kf8 22.Rf3 Nf5 (22...Bf7+-) 23.g4 g6 24.Bh6 Kf7 25.gf5 ef5 26.Rg3 Kf6 27.Bg6! Bg6 28.Bg5 Kg7 29.Qd2 f4 (29...Rg8 30.Na3+-) 30.Qf4 Bb8 (30...Qf7 31.Nd2+-) 31.Qf6 1–0. Tikhomirov,Anatoly (2345) – Sosnov,Gennady, Moscow op2, 1999. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Ne7 7.Bd3 Nbc6 8.c3 Qc7 9.Ba3 Ng6 10.Qc1 Nce7 11.h4 h5 12.Bd6 Qd8 13.Na3 a6 14.Nc2 Bc7 15.Ba3 f6 16.Qe3 Kf7 17.Rh3 (better is 17.Be7 Qe7 18.a4+=) 17...Nf5-/+ 18.Bf5 ef5 19.Rh1 Re8 20.0-0-0 a5 (20...fe5?! 21.Ng5 Kg8 22.Qf3+=) 21.Nce1 Qd7 22.Bb2 Qa4 23.a3 Bd6 24.Nc2 Ra6 25.Qd2 Bf8 26.Rhe1 Rb6 27.g3? (27.ef6 Qb5 28.Ne3 Nh4 29.Ne5 (worse is 29.Nh4 Ba3 30.Qc2 Bb2 31.Kd2 g6-/+) 29...Kf6 30.c4 dc4 31.N3c4+= (31.N5c4?! Re3 32.d5 Kf7 33.Re3 Qc4 34.Rc3 Qb5=)) 27...Qb5-+ 28.Ne3 Ba3 (28...fe5?! 29.c4 dc4 30.Qc3-/+) 29.Re2 Qa4 30.Qd3 Qb3 (better is 30...fe5!? 31.de5 Bb2 32.Rb2 Qa3-+) 31.Ba3+= Qa3 32.Kd2 Rc6 33.Nc2 Qb3 34.ef6? (better is 34.Ree1+=) 34...Re2-+ 35.Qe2 Qc3 36.Kc1 gf6 (36...Rf6?! 37.Rd3 Qc4 38.Ng5 Kg8 39.Qe8 Nf8 40.Kd2-/+) 37.Nfe1 a4 (better is 37...f4 38.Qh5 Kg7-+) 38.Rd3+= Qa1 39.Kd2 Qb2 40.Qh5 Kg7 41.Qf3 Be6 42.h5 Nf8 43.Qf4 b5 (43...Nd7 44.Ra3 b5-+) 44.Qb8+/- Bf7? (better is 44...Rc8 45.Qb7 Bd7+=) 45.h6+- Kg6?? (45...Kh6 46.Qf8 Kg6+-) 46.Qf8 Rc4 (46...Be6 47.Qg7 Kh5 48.h7 Qc3 49.Rc3 Rc8 50.Nd3 Rc3 51.h8Q) 47.Qg7 Kh5 48.h7 (48.h7 Qb4 49.Nb4 Rc8 50.Ng2 Rc2 51.Kc2 Bg6 52.h8Q Kg5 53.Qh4) 1–0. Valguarnera,Girolamo (2185) – Grandinetti,Pietro (1725), Siracusa op 2nd, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

6.e5 Ne7 7.Bd3 Nbc6 8.c3 Bd7 9.0-0 Rc8 10.Na3 Na5 11.Nb5 Bb5 12.Bb5 Kf8 13.Ba3 Nc4 14.Bc4 Rc4 15.Qb3 g6 16.Nd2 Rc6 17.c4 Bd4 18.Rad1 Rb6 19.Qg3 Kg7 20.Nf3 Nf5 21.Qg4 h5 22.Qh3 Bb2 23.Bb2 (better is 23.c5!? Rb5 24.Rb1 Ba3 25.Rb5+=) 23...Rb2+= 24.cd5 ed5 25.Nd4 Nd4 26.Rd4 Ra2 (26...Re8 27.Qe3-/+) 27.e6 (better is 27.Qf3!?=) 27...Qf6-/+ 28.Rd5 Qe6 29.Qc3 Kh7 30.Re5 Rc8 31.Re6? (better is 31.Qf3 Rf2 32.Rh5 gh5 33.Qf2-/+) 31...Rc3-+ 32.Re7 b6 (better is 32...Kg7!? 33.Rb7 a5 34.Rbb1-+) 33.Rf7 Kh6 34.Rd1 Rca3 35.h4 Ra1 36.Ra1 Ra1 37.Kh2 b5 38.Rb7 a6 39.f3 Ra4 40.Kh3 b4 41.g4 hg4 42.fg4 Ra3 43.Kg2 a5 44.Rb5 b3 45.Kf3 Kg7 46.h5 b2 47.Ke4 gh5 48.gh5 Ra2 49.Kf5 a4?? 50.Rb7?? Kh6-+ 51.Rb8 a3 52.Rb6 Kh5 53.Rb8 Kh4 54.Kf4 Kh3 55.Kf3 Kh2 56.Rh8 Kg1 57.Rg8 Kf1 58.Rh8 Ke1 59.Ke3 Kd1 60.Rd8 Kc1 61.Rc8 Kb1 62.Kd2 Ka1 (62...Ka1 63.Rc2 b1Q 64.Ra2 Qa2 65.Kd3 Qd5 66.Kc3 Kb1 67.Kb4 a2 68.Kc3 a1Q 69.Kb4 Qaa5) 0–1. Libersan,M (1935) – Audet Bouchard,N (2125), Quebec–ch sf, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 d5)

5.Nf3 d6

6.Bd3 Nc6 7.c3 Nf6 8.h4 e5 9.Ba3 (9.d5!? Ne7 10.0-0=) 9...ed4=+ 10.cd4 Bg4 (10...Nd4? 11.Nd4 0-0 12.Nf3+/-) 11.d5 Nd4 12.Nbd2 0-0 13.Qa4 Nd5?? (better 13...Bd7!? 14.Qb4 Bc5=+) 14.ed5 (14.Nd4 Nf4 15.Bf1 Qf6+=) 14...Re8 15.Kf1 Qf6?? (better 15...Bf3 16.Nf3 Nf3 17.gf3 Re5+-) 16.Ne4 (better 16.Bb2 Bf5 17.Bf5 (17.Nd4 Bd3 18.Kg1 Re2 19.Ne2 Qb2=+; 17.Bd4?! Bd3 18.Kg1 Qf4+-) 17...Qf5 18.Bd4 (18.Nd4?! Qd3 19.Kg1 Qd2+/-) 18...Qd5 19.Bb6 ab6 20.Qb3+-) 16...Re4-/+ 17.Be4 Nf3 18.gf3 Qa1 19.Kg2 Qa2 20.Rf1 (20.fg4 Qf2 21.Kh3 Qe3 22.Kg2 Qe2 23.Kh3 h5 24.gh5 f5-+) 20...f5 21.Bc2 Bh5 (21...Qd5? 22.Bb3 Bf3 23.Kg1+-) 22.Bd6 (22.Rb1 Be8 23.Qb3 Qb3 24.Rb3-+) 22...Qb2 (better 22...Bf3 23.Kf3 Qd5 24.Ke2 Qe6 25.Kf3 Qd6-+) 23.Bf5 (23.Rb1 Qc3 24.Rb6 Bf3 25.Kh2 Qe1-+) 23...Qf6 (23...Re8!?-/+) 24.Be6 Kh8 Attacking the isolated pawn on f3 25.Qf4 Qg6 26.Qg3 Qd3 (better 26...Bd8!? 27.Qg6 Bg6=+) 27.Be5+= Qg6 28.Rc1 a5 (28...Re8!?+=) 29.Rb1+/- Qg3 (better 29...Bd8 30.Rb7 Bf6 31.Bf6 gf6+-) 30.fg3+- (30.Bg3?! Bd4 31.Rb7 a4+/-) 30...Be3 (30...Bd8 31.Rb7 Bf6 32.Bf6 gf6+-) 31.Rb7 Bh6 32.g4 Be8 (32...Rg8+-) 33.g5 a4 (33...Rc8 34.gh6 Rc2 35.Kg3 Rg2 36.Kg2 Bf7 37.hg7 Kg8 38.Bf7) 1-0. Shirazi,K (2355) - Khanin,S (2480), Titled Tuesday, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3)

6.Bd3 Nc6 7.c3 Nf6 8.h4 e5 9.Ba3 (9.d5!? Ne7 10.0-0=) 9...ed4=+ 10.cd4 Bg4 (10...Nd4? 11.Nd4 0-0 12.Nf3+/-) 11.d5 Nd4 12.Nbd2 0-0 13.Qa4 Nd5?? (better 13...Bd7!? 14.Qb4 Bc5=+) 14.ed5 (14.Nd4 Nf4 15.Bf1 Qf6+=) 14...Re8 15.Kf1 Qf6?? (better 15...Bf3 16.Nf3 Nf3 17.gf3 Re5+-) 16.Ne4 (better 16.Bb2 Bf5 17.Bf5 (17.Nd4 Bd3 18.Kg1 Re2 19.Ne2 Qb2=+; 17.Bd4?! Bd3 18.Kg1 Qf4+-) 17...Qf5 18.Bd4 (18.Nd4?! Qd3 19.Kg1 Qd2+/-) 18...Qd5 19.Bb6 ab6 20.Qb3+-) 16...Re4-/+ 17.Be4 Nf3 18.gf3 Qa1 19.Kg2 Qa2 20.Rf1 (20.fg4 Qf2 21.Kh3 Qe3 22.Kg2 Qe2 23.Kh3 h5 24.gh5 f5-+) 20...f5 21.Bc2 Bh5 (21...Qd5? 22.Bb3 Bf3 23.Kg1+-) 22.Bd6 (22.Rb1 Be8 23.Qb3 Qb3 24.Rb3-+) 22...Qb2 (better 22...Bf3 23.Kf3 Qd5 24.Ke2 Qe6 25.Kf3 Qd6-+) 23.Bf5 (23.Rb1 Qc3 24.Rb6 Bf3 25.Kh2 Qe1-+) 23...Qf6 (23...Re8!?-/+) 24.Be6 Kh8 Attacking the isolated pawn on f3 25.Qf4 Qg6 26.Qg3 Qd3 (better 26...Bd8!? 27.Qg6 Bg6=+) 27.Be5+= Qg6 28.Rc1 a5 (28...Re8!?+=) 29.Rb1+/- Qg3 (better 29...Bd8 30.Rb7 Bf6 31.Bf6 gf6+-) 30.fg3+- (30.Bg3?! Bd4 31.Rb7 a4+/-) 30...Be3 (30...Bd8 31.Rb7 Bf6 32.Bf6 gf6+-) 31.Rb7 Bh6 32.g4 Be8 (32...Rg8+-) 33.g5 a4 (33...Rc8 34.gh6 Rc2 35.Kg3 Rg2 36.Kg2 Bf7 37.hg7 Kg8 38.Bf7) 1-0. Shirazi,K (2355) - Khanin,S (2480), Titled Tuesday, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3)

6.Bd3 Ne7 7.0-0 Nbc6 8.Bb2 0-0 9.Re1 Ng6 10.Nbd2 Nf4 11.Nf1 Bd7 12.Ng3 Rc8 13.Bf1 Na5 14.Bc1 Ng6 15.Rb1 Ba4 16.Bd3 Nc6 17.Bd2 Nd4=+ 18.Nd4 Bd4 19.Rb4 Qf6 20.Kh1? Bc6 21.f4 Bc5-+ 22.e5 de5 23.fe5 Qf2?? 24.Ne4= Be4 25.Rbe4 Be7?? 26.Rf1?? Qb6 27.Qh5 f5 28.ef6 Rf6 29.Rf6 Bf6 30.Re1 Qf2 31.Qg4 Nf8 32.Bb4 Qh4 ½–½. Loeb,Walter (1690) – Buchholz,Karl (1795), Schwarzach opB (5), 1998.

6.Bd3 h6 7.0-0 Ne7 8.c3 0-0 9.Nbd2 Qc7 10.Nc4+/- d5 11.Nb6 ab6 12.Bd2 de4 13.Be4 Bd7 14.Qe2 Nbc6 15.Rfc1 Rae8 16.Be3 f5 17.Bc2 Nd5 18.Qd3 Re7 19.Re1 g5 20.Ne5 Ne5+= 21.de5 Qc3 22.Qc3 Nc3= 23.Bb6 Rc8 24.Bb3 Nd5 25.Bd4 Bc6 26.Bc5 Rg7 27.Bd6 g4 28.Rac1 Re8 29.Rc5 Ra8 30.g3 h5 31.Kf1 h4 32.Ke2 h3 33.Kd2 Rd7 34.Kc1 Kf7 35.Bd5+= Bd5 36.Rd5 Ra2 37.Rb5 Rf2 38.Rb2 Rf3 39.Ree2 Kg6 40.Rf2 Re3 41.Rf4 Re1 42.Kc2 Rd8 43.Rc4 Rf1 44.Rb7 Rf2+= 45.Kd3 Rh2= 46.Rcc7 Rg8?? 47.Re7+- Kg5 48.Re6 Rg6 49.Be7 Kh6 50.Rg6 Kg6 51.Bh4 Ra2 52.Rb1 Kf7 53.Ke3 Ra4 54.Rf1 Re4= 55.Kd3 Re5 56.Bg5 Ra5 57.Bf4 Kg6 58.Rc1 Ra6 59.Rc2 Kf6 60.Ke2 Ke6 61.Kf2 Ra5 62.Re2 Kf6 63.Kg1 Kf7 64.Kh2 Kf6 65.Rd2 Ra6 66.Be3 Ke5 67.Bf4 Ke4 68.Rb2 Ra5 69.Rb4 Kf3 70.Rb3 Ke4 71.Re3 Kd4 72.Re2 Rb5 73.Rd2 Ke4 74.Re2 Kd4 ½–½. Strumilo,Slawomir (1855) – Milewski,Karol (1690), Class Spring Bialystok, 2010.

6.e5 de5-/+ 7.Ne5? (better is 7.Bb5 Bd7 8.Bd7 Qd7 9.de5 Qd1 10.Kd1 Bf2 11.Nc3-/+) 7...Bd4?? (better is 7...Qd4 8.Bb5 Nc6 9.Qd4 Bd4 10.Bc6 bc6 11.Nf7 Kf7-+ (11...Ba1?! 12.Nh8 g6 13.Ng6 hg6 14.0-0-+)) 8.Bb5= Kf8 9.0-0 Qd5 10.Ba3 (better is 10.c4 Qe5 11.Bb2=) 10...Ne7-+ 11.c4? (better is 11.Re1 Ba1 12.Be7 Ke7 13.Ng6 Kf6 14.Nh8 Qd1 15.Rd1-/+) 11...Qe5 12.Re1 Qf6 13.Re2 (13.Bc5 e5 14.Bd4 ed4 15.Nc3-+) 13...g6 14.Nc3 (14.Nd2 Ba1 15.Ne4 Qd4-+) 14...Bc3 15.Rc1 Be5 16.Rd2 Nbc6 17.Bc6 bc6 18.Rd8 Kg7 19.Rh8 Kh8 20.Qd8 Kg7 21.Be7+- Bh2 22.Kh1 Qe7 23.Qe7 Bf4 24.Rd1 Ba6 25.Rd7 Rb8?? 26.Qf7 Kh6 27.Qh7 Kg5+- 28.g3 Rh8 29.gf4 Kf4 30.Qh8 (30.Qh8 e5 31.Qh4 Kf3 32.Qg3 Ke2 33.Qe3 Kf1 34.Rd1) 1–0. Cadloff,Kevin – Ironman,Jules, CCCA corr Canada, 1972. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

5.Nf3 Ne7

6.Bd3 0-0 7.0-0 Nbc6 8.c3 d5 9.ed5 ed5 10.Bh7?? (better is 10.Qc2 Ng6 11.Bg5=) 10...Kh7-+ 11.Ng5 Kg8 12.Qh5 Bf5 13.g4 Bg6 14.Qh4 (14.Qh3-+) 14...Nd4! 15.Be3 (15.cd4 Bd4 Combination) 15...Nc2 16.Bb6 Qb6 17.Nd2 Na1 18.Rb1 Qc7 19.Ra1 Qc3 20.Re1 Qd2 21.Re7 Rae8 22.Rb7 Qa2 23.Qg3 d4 24.h4 Re1 25.Kg2 Qd5 26.Qf3 Rg1! 27.Kh2?? Qf3 28.Nf3 Ra1 29.h5 d3 30.Ne5 d2 (30...d2 31.Rd7 d1Q 32.Rd1 Rd1 33.hg6 fg6-+) 0–1. Donoso Solzona,Francisco – Pacheco,Shane, Internet Section, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 0-0 7.0-0 d5 8.e5 h6 9.Ba3 Nbc6 10.Nc3 Nd4=+ 11.Nd4 Bd4 12.Bh7 Kh7 13.Qd4 a6 14.Rab1 b5 15.Ne2 Kg8 16.Rb3 Bd7 17.Qg4 a5 18.Rg3= g6 19.Nd4 b4 20.Bc1 Nf5 21.Nf5 ef5 22.Qf4 g5 23.Qh4 f6?? 24.Qh6+- g4 25.Qg6 Kh8 26.Bb2 Qe8 27.Qh6 Kg8 28.ef6 Qf7 29.Re3 Rfe8 30.Rfe1 Qh7?? 31.Qg5 Kf7 32.Re7 (32.Re7 Kf8 33.R1e6 (33.Rh7?? Re1) 33...Re7 34.fe7 (34.Re7?! Re8+-) 34...Ke8 35.Rh6 Qh6 36.Qh6 Ke7 37.Qf6 Ke8 38.Qh8 Ke7 39.Qa8 a4 40.Bd4 g3 41.Bc5 Kf7 42.Qf8 Kg6 43.Qd6 Be6 44.Qe6 Kg7 45.Qd7 Kg6 46.Qe8 Kh6 47.Bf8 Kg5 48.f4 Kf6 49.Qe7 Kg6 50.Qg7 Kh5 51.Qg5) 1–0. Schlag,Franz (2170) – Hoffmann,Werner, Hessen–ch Seniors (9), 1999.

6.Bd3 0-0 7.0-0 d6 8.Ba3 Nbc6= 9.e5 d5 10.Nc3 f5 11.ef6 Rf6= 12.Re1 Bc7 13.Ne5 Bd6? 14.Bd6+/- Qd6 15.Nb5 Qd8+= 16.a3 a6= 17.Nc3 b5 18.Qd2 Bb7 19.f4 Ne5 20.fe5+= Rf7 21.Rf1 Qf8 22.Rf7 Qf7 23.Rf1 Qh5 24.Ne2 Rf8 25.Nf4 Qh6+= 26.Rf2 Nf5 27.c3 Bc6 28.Qc2 Be8 =. onoudidnt (1985) – eweram (2075), net–chess.com, 2008.

6.Bd3 0-0 7.e5 Ng6 8.h4 h6 9.Ng5?? (9.Ba3 Ba5 10.c3 Ne7+=) 9...f5?? (9...Bd4 10.c3 Qa5 11.Nf3 Be5 12.Bg6 fg6 13.Ne5 Qe5 14.Qe2-+) 10.Ba3?? (better is 10.Nf3+=) 10...hg5-/+ 11.h5 (11.Bf8!? Kf8 12.h5-/+) 11...Nf4-+ (11...Bd4 12.hg6 g4 13.Ke2+-) 12.h6 (12.Bf1 Rf7-+) 12...Bd4 (12...Ng2 13.Kf1 Re8 14.Kg2 Bd4 15.hg7 Be5 16.Qh5 Bg7 17.Qh7 Kf7 18.Qh5 Kf6 19.f4 gf4 20.Bb2 Ke7 21.Bg7+=) 13.hg7 Kg7 (13...Ng2 14.Kf1 Kg7 15.Bf8 Qf8 16.c3 Bf2 17.Kg2-/+) 14.Bf8 Qf8 15.c3 Be5 (15...Qc5 16.cd4 Qd4 17.Na3 Qd3 18.Qd3 Nd3 19.Ke2 Ne5 20.Rh5-+) 16.Kf1 Qd6 17.Qe1 Qd3 18.Kg1 Qe2 19.Qc1 Qg4 20.Qf1 0–1. Mablouke,Ulrich (1835) – Oster,Jean Marie (1635), Reunion op, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.Bb2 d5 8.e5 Qc7 9.0-0 Nf5 10.c3 Bd7 11.Na3 a6 12.Rc1 Rc8 13.Re1 Ba7 14.c4 Nfd4 15.cd5 Nf3 16.Qf3 ed5 17.e6 Be6 (worse is 17...fe6 18.Bg7 Rg8 19.Qh5 Ke7 20.Be5+- (20.Qh7?! Qf4 21.Bd4 Qf7 22.Ba7 Na7=)) 18.Bg7 Rg8 19.Bf6 Kd7 20.Bh7 Rh8 21.Re6 fe6 (21...Ke6 22.Qf5 Kd6 23.Be5 Ke7 24.Qf6 Ke8 25.Qh8 Ke7 26.Qf6 Ke8 27.Bc7 Rc7 28.Qh8 Ke7 29.Re1 Be3 30.Re3 Kd6 31.Qf8 Re7 32.Nc2+-) 22.Bh8 Rh8 23.Qf7 Kd6 (23...Kc8 24.Qc7 Kc7-/+) 24.Nc4?? (24.Qf4 Kd7 25.Qf7 Kc8 26.Qc7 Kc7 27.Bd3-/+) 24...dc4-+ 25.Rd1 Bd4 26.Qf4 Kd7 27.Rd4 Nd4 28.Qd4= Qd6 29.Qg7 Kc6 30.Be4 Kc5 31.g3 Rb8 32.h4 b5-/+ 33.h5 b4 34.h6 b3 35.ab3+/- cb3 36.Qc3 Kb6 37.Qb3 Kc7 38.Qc3 Kd7 39.h7 Qf8? 40.Qd4 Ke7 41.Qa7 Kf6 42.Qa6 Qb4 43.Qa1 e5?? 44.Qa6 Ke7 45.Qg6 Qe1 46.Kg2 Rf8 47.Qg7 Ke6 48.Bf3 Rf3 49.Kf3 Qh1 50.Kg4 Qe4 51.f4 ef4 52.Qg8 Kd6 53.Qd8 Kc5 54.Qc7 Kb5 55.Qd7 Kc5 56.Qf5 (56.Qf5 Qf5 57.Kf5 fg3 58.h8Q+-) 1–0. Loeb,Walter (1885) – Lettner,Jochen (1735), Vienna op–B, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.c3 0-0 8.e5 d6 9.Bh7 Kh8 10.ed6 Nf5 (10...Qd6!? 11.Be4 Kg8 12.Ng5+-) 11.Bf5 ef5 12.0-0 Qf6 13.Bf4 Bd7 14.Ng5 Qg6 15.h4 Rae8 16.h5 Qf6 17.Nf3 Re4 18.Be5 Qh6 19.g3 (19.Nbd2!? Rg4+-) 19...Qh5 20.Nbd2 Rg4 21.Kg2 Kg8 22.Rh1 Qg6 23.Nh4 Qe6 24.f3 (better is 24.Qb3!?+/-) 24...Ne5= 25.de5 Bc6 26.Kh2 (better is 26.Qc2!? Rg5 27.Rh3+=) 26...Rh4!-/+ 27.gh4 Qe5 28.Kg2 Qd6 29.Qe1?? (29.Nf1 Qg6 30.Kh3-+) 29...Re8 30.Qd1 Qg6 31.Kh3 f4 32.Nf1 (32.Rg1 Bd7 33.Rg4 Bg4 34.fg4 Re3 35.Kh2-+) 32...Bb5 (32...Qe6 33.Kh2 Qe2 34.Kh3 Bd7 35.Qd7 Qf3 36.Kh2 Re2) 33.c4 (33.Qd3 Bd3 34.Rg1 Qg1 35.h5 Bf1 36.Rf1 Qg3) 33...Bc4 34.Qd7 Be6 (34...Be6 35.Qe6 Qe6 36.Kg2 Qe2 37.Kh3 Qf3 38.Ng3 Qg3; 34...Bf1 35.Raf1 Qg3) 0–1. Fess,Klaus (1890) – Dittler,Volkfried, Rheinland Pfalz Seniors op, 2005. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.c3 d5 8.e5 Ba5 9.0-0 Bd7 10.Bd2 Qb6 (10...h6!?=) 11.Na3 a6 Covers b5 12.Rb1 Qc7 13.Ng5 White threatens to win material: Ng5xh7 (13.Rb2 b5=) 13...h6= Black threatens to win material: h6xg5 14.Nh3 b5 15.Qg4 g6 Controls f5 16.Qf4 Nf5 17.Kh1 (17.Nc2!?+= deserves consideration) 17...g5 18.Ng5? (better is 18.Qf3 and White can hope to survive 18...Nce7 19.Rb3=) 18...hg5-+ 19.Qg5 Qd8 20.g4? (better is 20.Bf5 Qg5 21.Bg5 ef5 22.Bf6-/+) 20...Qg5-+ 21.Bg5 Nfe7 22.Rbc1 Rg8 23.f4 0-0-0?? releasing the pressure on the opponent 24.Rb1? Rde8 25.Rb3 Na7 26.Rfb1 Bc7 27.Nc2 Nac6 28.a4 Na5 29.Ra3 Nc4 30.Ra2 ba4-+ 31.Na3 Na3?? with this move Black loses his initiative 32.Ba6= Kd8 33.Ra3 Bc6 34.h4 Kd7 35.h5 White gains space 35...Rh8 36.Bd3 Ng8 37.Kg2 Bd8 38.Bd8 Rd8 Black wins a piece 39.Kg3 Nh6 40.Bc2 Attacks the isolani on a4. 40...Rdg8 Black threatens to win material: Rg8xg4 41.Bd1 Nf5 42.Kh3 Ne3 43.Be2 Kc7 Black king safety dropped 44.Ra2 Ra8 45.Re1 Rhb8 46.Bd3 Nc4 47.h6 Bb5 48.Be2 Bc6 49.g5 This push gains space 49...Rb3-/+ 50.Rc1 a3 51.Bh5+= Rf8 52.Bf7 Rf7 53.g6 He broke from his leash 53...Re7 54.g7 Rg7 55.hg7 Rb8 56.Rg1 Rg8 57.Rg5 Menacing 57...Kd7 58.Kg3 Ke7 59.Rf2 Ne3 60.Ra2= White threatens to win material: Ra2xa3 60...Nc4 61.Rf2 ½–½. Reh,Stefan (2085) – Fink,Pascal, Bad Zwesten op 5th, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.c3 d5 8.e5 Na5 9.0-0 h6 10.Na3 a6 11.Nc2 Bd7 12.Ne3 Rc8 13.Bb2 Nc4 14.Nc4 dc4 15.Be4 Bc6 16.Nd2 Be4 17.Ne4 Nf5 (17...Bc7 18.Ba3+=) 18.Ba3 (18.g4 Qd5 19.Qe1 Nh4+-) 18...h5 19.Nd6 Nd6 20.Bd6 Bc7 21.Ba3 Rh6? (better is 21...b5!?+=) 22.Qa4+- Qd7 23.Qb4 (23.Qc4?! Ba5 24.Bc5 Bb6+=) 23...Kd8 24.d5 ed5 25.Rfd1 Be5? (better is 25...Re6 26.Qf8 Re8 27.Be7 Qe7 28.Rd5 Bd6 29.Qg7 Rc6+=) 26.Rd5+- Qd5 (26...Rd6 27.Re5 f6+-) 27.Qe7 1–0. Duveau,Erwan (1780) – Esposito,Julie (1840), FRA–ch U20 Aix les Bains, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.c3 d5 8.e5 Bd7 9.0-0 Rc8 10.h4 Na5 11.h5 h6 12.Nh4 Nf5 13.Nf5 ef5 14.Qf3 Nc6 15.Qd5 Qh4 16.Ba3 Be6 (better is 16...Qh5!? 17.Nd2 Na5+=) 17.Qf3+- a6 (better is 17...g5!? 18.Bf5 g4+-) 18.Bf5 Nd4?! (18...Bf5 19.Qf5 Rc7 20.d5+-) 19.cd4 Bd4 20.Be6 fe6 21.Qb7 Rc2 22.Qa8 Kf7 23.Qf3 Ke8 (better is 23...Kg8 24.Bd6 Ba1+-) 24.Nd2 Ba1 (24...Rd2 25.Qc6 Double attack) 25.Ra1 Rd2 26.Rb1 Qd8 (26...Qa4 27.Bd6 Rd6 28.ed6 Qc2 29.Rb8 Kd7 30.Qf7 Kd6 31.Rb6 Qc6 32.Rc6 Kc6 33.Qe6 Kc7 34.Qe5 Kc8 35.Qg7 Re8 36.Qh6 Kb7+-) 27.Qc6 Kf7 28.Rb7 Kg8 (28...Qd7 29.Rd7 Rd7 30.Qd7 Kg8 31.Qe6 Kh7 32.Qf5 Kg8 33.e6 a5 34.e7 g6 35.Qg6) 29.Qe6 (29.Qe6 Kh7 30.Qg6 Kg8 31.Qg7) 1–0. Klein,Manfred (2285) – Lillebo,Paul, US op, 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 Nbc6 7.c3 d5 8.e5 h6 9.0-0 Bd7 10.Ba3 Nf5 11.Nbd2 Rc8 12.Rc1 Na5 13.Re1 Rc7 14.Bf5 ef5 15.e6 Be6 16.Ne5 Qf6 17.Qa4 Kd8 18.Bb4 Nc6 19.Bd6 Rc8 20.Qb5 Ne5 21.Be5 Qe7 22.c4 dc4 23.Nf3? Qd7 24.Qb4 Qd5?? 25.Bg7= ½–½. Rieck Perschonke,Ingvar (2105) – Schastok,E, Berliner Sommer (1), 1996.

6.Bd3 Nec6 7.c3 0-0 (7...d5 8.0-0+=) 8.0-0 (8.e5 f6+-) 8...d6 9.Na3 a6 (9...e5 10.Bg5 f6 11.Be3+=) 10.Nc4 (10.Bg5 Qd7+=) 10...Bc7 11.Qc2 h6 12.Rb1 Ne7 (12...b5 13.Ne3+=) 13.e5 d5 14.Ne3 (better 14.Nb2+=) 14...Ng6 (14...Nbc6!?+=) 15.Ba3 (15.Bg6 fg6 16.Qg6 Qd7+-) 15...Re8 (15...Ne7!?+-) 16.Bg6+- fg6 17.Qg6 b5?? (better 17...Qd7+-) 18.Ng4 Nd7 (18...Kh8 19.Nh6! gh6 20.Qh6 Kg8 21.Qg6 Kh8+-) 19.Nh6 (19.Nh6 Kh8 20.Nf7 Kg8 21.N3g5 Qg5 22.Ng5 Nf8 23.Bf8 Be5 24.Qf7 Kh8 25.de5 Rf8 26.Qf8) 1–0. Marcus – 739, internet, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 d5 7.e5 Nbc6 8.c3 0-0 9.Bh7 Kh8 10.Bd3 Ng8 11.Ng5 Qe7 (11...Nh6 12.Nh7 Re8 13.Nf6+-) 12.Qh5 Nh6 13.Nh7 Nd4 (13...Bd4 14.Nf8 Ne5+-) 14.Nf6!! Ndf5 (14...gf6 15.Qh6 Mate attack) 15.Bf5 (15.Bf5 Qf6 16.ef6 Be3 17.Be3 ef5 18.Bh6 Kg8 19.Bg7 Re8 20.Kd1 Re1 21.Re1 d4 22.Re8) 1-0. marekt – ZurichIntl, ChessWorld.net, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3)

6.Bd3 d5 7.e5 Bd7 8.0-0 Bc6 (8...Nbc6 9.Be3=) 9.Ba3 Black has a cramped position 9...Nd7 10.Re1 (better is 10.Nc3+=) 10...g5? (better is 10...Ba5= would allow Black to play on) 11.Ng5+- Bd4 12.Qh5! Mate threat (12.Qh5 Ng6 13.Ne6+-) 1–0. Hackl,Rene – Wagner,Georg, Sueder Sommer op, 2000. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.Bd3 d5 7.e5 h6 8.0-0 Nbc6 9.c3 Bd7 10.Na3 a6 11.Be3 Na5 12.Nd2 Qc7 13.c4 Ba7 14.Qg4 g6 15.Rfc1 Nac6 16.Nb5 ab5= 17.cb5 Ne5 18.de5 Qe5 19.Nf3 Qf6 20.Qa4 Nc8 21.Rab1 e5 22.Ba7 Na7? 23.Ne5!+- Qd6 24.Qf4 0-0 25.Ng6 Qf4 26.Nf4 Be6 27.Rc7 Nc8 28.Ne6 fe6 29.Rb7 Ra2 30.f3 Rd2 31.Bh7 Kh8 32.Bg6 d4 33.Re1 Rf6 34.Be4 Nd6 35.Rb8 Kg7 36.b6 Rb2 37.Rb1 Rb1 38.Bb1 Rf8 39.Rf8 Kf8 40.Be4 Ke7 41.b7 Nb7 42.Bb7 Kd6 43.Kf2 Kc5 44.f4 Kc4 45.Bc8 Kc3 46.Be6 (46.Be6 Kb4 47.f5+-) 1–0. Uhoda,Philippe – Imbert,G, Apsap op Paris (3), 1993.

6.Bd3 d5 7.e5 h6 8.0-0 Nbc6 9.c3 Bd7 10.Na3 Rc8 11.Nb5 Bc7 12.Bd2 a6 13.Na3 b5 14.Nc2 Na5 15.Nb4 Ra8 16.Qe2 Nc4 17.Bc4 bc4 18.Nc2 Ng6 19.h3 0-0 20.Ne3 f5 21.ef6 Qf6 (worse is 21...gf6 22.Nh2=; worse is 21...Rf6 22.Ng4 Rf8 23.Rab1=) 22.Ng4 Qe7 23.Nge5 Ne5 24.Ne5 Be5 25.Qe5 Rab8 26.Rfb1 Rb5 27.Qg3 Kh7 28.Qc7 Qf7 29.Be1 Be8 30.Qc8 Qf5 31.Rc1 a5 32.Qa6 e5 33.de5 Qe5 34.a4 Rc5 35.Bd2 Qc7 36.Be3 (better is 36.Rcb1!? Rc6 37.Qb7=) 36...Rf6-/+ 37.Qa8 Bc6 38.Qa7?? (better is 38.Qa6 Ba4 39.Qf6 gf6 40.Bc5+=) 38...Qa7-+ 39.Bc5 (39.Bd4 Re6-+) 39...Qc5 40.Rc2 d4 41.cd4 Qd4 42.Rac1 Ba4 43.Rc4 Qf2 44.Kh1 Bb3 45.Rc5 0–1. Burnham,Frank D (1815) – Shah,Dipak K (1885), London ENG, 5th Classic Open, 2013. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Bb6 5.Nf3 Ne7)

6.d5 ed5 7.ed5 d6 8.Bb2 0-0 9.Bc4 Bf5 10.0-0 Nd7 11.Re1 Rc8 12.Nbd2 Ba5 13.Nh4? (13.Bb3 Nb6=) 13...Bg6 (13...Bd2 14.Qd2 Rc4 15.Re7 Bc2-/+ (15...Qe7? 16.Nf5 Qd8 17.Bg7+-; 15...Rh4?! 16.Qg5 Rg4 17.Qf5 Rg2 18.Kg2 Qe7 19.Bc3-/+)) 14.Ng6 Ng6 15.Bf1 Nde5 16.Bd4 a6 17.Rb1 b5 18.a4 Nc4 19.Nc4 Be1 20.ab5 ab5 21.Rb5 Re8 22.Qa1 Nf4 23.Be3 (worse is 23.Bg7 Ne2 24.Be2 Re2-+) 23...Re3 24.fe3 (24.Ne3!? Bc3 25.Qa6+/-) 24...Qh4= 25.g3 Bg3 26.hg3 Qg3 27.Kh1 ½–½. Wempe,Juergen (2190) – Woell,Josef (2060), Tiefenbach op, 2005. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Ne7)

5.Nf3 Nf6

6.Bd3 Nc6 7.c3 0-0 8.e5+/- Nd5 9.Bh7! Kh8 10.Bc2 Kg8? 11.Ng5 g6 12.Ne4 f6 13.ef6 Nf6 14.Bg5 d5 15.Nf6 Rf6 16.Bg6! Qf8 17.Qh5 Rg6 18.Qg6 Qg7 19.Qg7 Kg7 20.Be3 Bd7 21.Nd2 Kf7 22.Nf3 Re8 23.0-0 Ke7 24.h4 Rh8 25.Rfe1 Kd8 26.Bf4 Ne7 27.Bg5 Bc7 28.Ne5 Bd6 29.Nf7 (29.Nf7 Kc7 30.Nh8+-) 1–0. Demir,Hilmi Mustafa – Yagmur,Ilhan, GP, Izmir TUR, 2002.

6.Bd3 Nc6 7.c3 a6 8.Bg5 h6 9.Bh4 d6 10.Nbd2 e5 11.Nc4 Bc7 12.0-0 b5 13.Ne3 0-0 14.Nd5 g5 15.Ng5 hg5?? (better is 15...Nd5 16.ed5 hg5+=) 16.Bg5+- Kg7 (16...Nd5 17.Bd8 Nc3+-) 17.Bf6 Qf6 18.Nf6 Kf6 19.a4 Bb7 20.Qf3 Ke7 21.ab5 ab5 22.Bb5 Nd8 23.Ra8 Ba8 24.Ra1 Ne6 25.Qg4 ed4 (25...Bb7+-) 26.Qh4 f6 27.Ra8! Ra8 (27...Ra8 28.Qh7) 28.Qh7 Ng7 29.Qg7 (29.Qg7 Ke6 30.Qd7 Ke5 31.Qf5) 1–0. Rueger,Dietmar – Riker,James, SL.2003.0.013, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

6.Bd3 Nc6 7.c3 d6 8.0-0 0-0 9.Qe2 e5 10.d5 Ne7 11.Bg5 Ng6 12.g3 Bg4 13.Na3 h6 14.Bd2 Nh5 15.Kg2 Qc8 16.Rfc1 Nhf4 17.Bf4 ef4 18.Nc4 Bc5 19.Qd2 b5 20.Na5 Bf3 21.Kf3 Ne5 22.Kg2 Qg4 23.Bf1?? Qf3-+ 24.Kg1 fg3 25.Bg2 Bf2 26.Kh1 Qh5 27.h3 g5 (27...g5 28.Nc6 Nc4-+) 0–1. Blanchard,Esteban – Patrat,Joel, Paris op (4), 1993.

6.Bd3 h6 7.Ba3 Nc6 8.c3 Qc7 9.0-0 d5 10.Nbd2 de4 11.Ne4 Ne4 12.Be4 Bd7 13.c4 Nd8 14.Rc1 f5 15.Ne5 Bc8 (15...g6 16.Ng6 Rh7+-) 16.Qh5 Nf7 17.Bf5! ef5 18.Nf7 Be6 19.Rfe1 Kd7 20.Re6 Ke6 21.Re1 (21.Qg6 Kd7 22.Qf5 Ke8 23.Qe6 Qe7 24.Qe7) 21...Kf6 22.Nh8 (22.Re6! Ke6 23.Qg6 Kd7 24.Qf5 Ke8 25.Qe6 Qe7 26.Qe7) 22...Rh8+- 23.Be7 (better is 23.d5 Qe5 24.Re5 Ke5 25.Qe2 Kd4 26.Bb2 Kc5 27.Qd3+-) 23...Qe7 24.Re7 Ke7 25.Qf5 Rd8 26.c5 Bc7 27.d5 Ba5 (27...Re8+-) 28.d6 Ke8 29.Qe6 Kf8 30.Qe7 Kg8 31.Qb7 Re8 32.g3 Bc3 (32...Rd8 33.Qa7 Be1 34.c6+-) 33.d7 Rd8 34.Qb3 (34.Qd5 Kh7 35.c6 Rd7 36.Qd7 Ba5 37.Qf5 g6 38.Qa5 g5 39.Qf5 Kg7 40.c7 a6 41.c8Q g4 42.Qcf8) 34...Kf8 35.Qc3 Rd7 36.c6 Rc7 37.Qc5 Ke8 38.Qe5 Kd8 39.Qd6 Kc8 40.f4 Kb8 41.Kf2 a6 42.Kg1 a5 43.Kg2 Kc8 (43...a4 44.Qd8 Ka7 45.Qc7 Ka6 46.Qb7 Ka5 47.c7 g6 48.c8Q a3 49.Qca8) 1–0. Kiss,Laszlo (2170) – Szarvas,Zoltan, Pecs Suto op, 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

6.e5 Nd5 7.Bd3 Nc6 8.c3 d6 9.0-0 de5 10.de5 Bd7 11.Be4 Qc7 12.Re1 Nce7 13.Ba3 Bc5 14.c4 Ba3 15.Na3 Nb6 16.Nd4 Rd8 17.Nab5 Bb5 18.Nb5 (worse is 18.cb5 Qc4 (18...Qe5 19.Bc6 Nc6 20.Re5 Ne5 21.Qh5+=) 19.Qg4 Rd4 20.Qg7 Rg8 21.Qh7 Rd7-+) 18...Qe5 19.Qf3 Qb8 (better is 19...Qc5!? 20.Bb7 Nc4+=) 20.c5+= Nbc8 21.Bb7 0-0 22.Rab1 Nd5 23.Nd4 Qc7 24.Nc6 Rd7 25.Ne5 Rdd8 26.Qa3 Nce7 27.g3 Rb8 28.c6 (28.Qa7 Rfd8 29.Rb3+=) 28...Nb6?? (better is 28...Nc6 29.Bc6 Rb1 30.Rb1 Qe5 31.Qa7 Nc3+=) 29.Qa7 Nc6?? (better is 29...Ned5 30.Qa5 Rbd8+/-) 30.Qb6+- (30.Nc6 Rb7 (30...Qb7? 31.Qb7 Rb7 32.a4+-) 31.Qa6 Qc6-/+) 30...Qb6 31.Rb6 Ne5 32.Re5 1–0. Puzzoni,Christian (2080) – Carta,Francesco (1635), Perla del Sarcidano op 2nd, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6)

6.Bg5 Qc7 (6...h6!? 7.Bf6 Qf6=) 7.Bd3+= Ba5 (7...h6 8.Bf6 gf6 9.0-0+=) 8.Nbd2 Bc3 9.Rb1 Nc6 10.Bf6 gf6 11.d5 Ne5 12.0-0 Nd3 (12...Nf3!? 13.Nf3 a6=) 13.cd3+/- Qf4 (better is 13...b5!?+/-) 14.g3 Qg4 15.Nc4 h5? (15...0-0 16.Rb3 Be5 17.Nfe5 Qd1 18.Rd1 fe5 19.Nd6+-) 16.Rb3 (better is 16.d4 b5 17.Nd6 Kf8 18.Nb5+- (18.Rb5?! Ba6+/-)) 16...Ba1?? (better is 16...Be5+-) 17.Ne3 Qg6 18.Qa1 h4 19.Ng2 (19.Nc4 h3+-) 19...hg3 20.fg3 ed5 (20...Qh6+-) 21.Nf4 Qh6 22.Nd5 d6 (22...Kf8 23.Qd4 d6 24.Nf6+-) 23.Rf2 (better is 23.Nc7 Kf8 24.Na8 Bg4+-) 23...Kf8 24.Qf6 (better is 24.Nf6 Be6 25.Rb7+-) 24...Qc1 (24...Qf6 25.Nf6 b6+-) 25.Rf1 Qh6 26.Qe7 Kg7 27.Nh4 Be6 28.Rf7! 1–0. Healey,Michael W (2110) – Griffiths,Hywel, Daventry ENG, 4NCL Rapid Ch, 2014. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Bb6 5.Nf3 Nf6)

4.d4 Be7

5.Bb2 d5 6.e5 Nc6 7.Qg4 Qb6 8.Bc3 (8.Qg7?? Qb2 9.Ne2 Qa1 10.Qh8 Qb1 11.Kd2 Kf8 12.Qh7 f6-+) 8...g6 9.Bd3 Nh6 10.Qh3 Bf8 11.Nd2 Nb4 (worse is 11...Nd4 12.Rb1 Qc5 13.Bb4 Nc2 14.Bc2 Qc2 15.Bf8+-) 12.Bb4 Qb4 13.Ne2 Bg7 14.Rb1 Qe7 15.Nc3 a6 16.0-0 0-0 17.f4 b5 18.a4 b4 19.Na2 a5 20.Nb3 Ba6 21.Ba6 Ra6 22.Qd3 Raa8 23.Nc5 Rfc8 24.Rfc1 (24.c3!?+=) 24...Nf5 25.c3 Qh4 (better is 25...Rc5!? 26.dc5 Qc5 27.Kf1 Ne3 28.Kg1 Nc4 29.Kf1 b3 30.Rb3 Nd2 31.Qd2 Qc4 32.Kf2 Qb3-/+) 26.g3+/- (worse is 26.cb4 Qf4 27.Nb3 Rc1 28.Rc1 ab4 29.Nb4 Bh6-/+) 26...Qg4 27.cb4 ab4 28.Rb4 Bf8 29.Nd7 Rc1 30.Nc1 Be7 31.Rb7 (better is 31.Nb3+/-) 31...Ne3?? (better is 31...Ra4 32.Nb3 Qh5+=) 32.Nb6 (better is 32.Qe3 Qd1 33.Kg2 Ra4 34.Nf6 Bf6 35.ef6+-) 32...Ra4?? (better is 32...Qf3 33.Qe2 Qe2 34.Ne2 Ra6+-) 33.Na4 Qf3 34.Qe2 (34.Qe2 Qe2 35.Ne2+-) 1–0. Lana Rodriguez,D – Martin Barbero,R (1985), Aragon–chT, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.c3 a6 6.Bd3 d6 7.f4 Nf6 8.e5 de5 9.fe5 Nd5 10.Nf3 b5 11.a4 b4 12.Qc2 bc3 13.Bh7? (better is 13.Nc3 Bb7 14.Qb1=) 13...g6 14.Bg6 fg6 15.Qg6 Kd7 16.Ng5 (better is 16.Ba3-+) 16...Qg8 17.Qg8 Rg8 18.h4 Nc6 19.0-0 Nd4 20.Nc3 Nc3 21.Bb2 (21.Bd2 Nd5 22.Rf7 Nf5-+) 21...Nce2 (better is 21...Nde2 22.Kf2 Bg5 23.Bc3 Nc3 24.hg5 Rg5 25.Rac1 Na4 26.Rfd1 Ke8 27.Rd4-+) 22.Kf2 Bg5 23.hg5 Rg5 24.Ra3 (24.Bd4 Nd4 25.Rfd1 Rf5 26.Kg3-+) 24...Bb7 25.Bc3 (25.Rd3 Rf8 26.Ke1 Rf1 27.Kf1 Rf5 28.Ke1 Re5 29.Kd2-+) 25...Nc3 (better is 25...Rg2 26.Ke3 Nc2 27.Kd3 Na3 28.Bb4-+) 26.Rc3 Rf8 (26...Rf8 27.Ke3 Rf1-+) 0–1. Zambrano,Luciana – Salazar,Sara (1845), Pan American–ch U16 Girls, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.c3 d5 6.e5 Nc6 7.Bd3 Nh6 8.Nf3 Nf5 9.0-0 0-0 10.Qc2 h6 11.Bf4 f6 (11...Qc7 12.Rc1=) 12.Nbd2 (12.Re1 fe5 13.Ne5 Bd7+=) 12...Bd7 (12...g5 13.Bf5 ef5 14.ef6 Bf6 15.Be5=) 13.Rab1+= Rb8? (better 13...b6!?+=) 14.ef6 (14.Bf5 ef5 15.ef6 Rf6 16.Bb8 Qb8+-) 14...Bf6 (14...Rf6 15.Bb8 Qb8+-) 15.Bb8 Qb8 16.Rfe1 (16.Bf5!? ef5 17.Qb3 Qd6 18.Qb7 f4+-) 16...b6 17.Bb5 Rc8 18.Qa4 g5 (18...Nd6 19.Ba6 Rf8 20.Qb3+-) 19.h3 h5 20.Ne5! Be5 (20...Ne5 21.Bd7 Pinning (21.Bd7 Deflection); 20...Be5 21.Nf3 Double attack (21.Nf3 Decoy)) 21.de5 (21.Re5?! Ne5 22.Bd7 Nd7 23.Qd7 Ng7=) 21...g4 (21...Qc7 22.Nf3 Nb8+-) 22.hg4 hg4 23.Qg4 Ng7 24.Nf3 Rf8 25.Ng5 a6 (25...Qe8+-) 26.Bc6 Bc6 27.Ne6 Rf7 (27...Qa7 28.Re3 Qf7 29.Rg3 Qf2 30.Kh2+-) 28.Ng7 Rg7 29.Qe6 (29.Qe6 Kh8 30.Qh6 Kg8 31.Qc6+-) 1-0. Fantastic_power06 (2620) - Arifars17 (2570), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.c3 d5 6.e5)

5.c3 d6 6.Bd3 Nf6 7.Nf3 Nc6 8.0-0 Bd7 9.Na3 a6 (9...d5 10.ed5 ed5 11.Rb1=) 10.Nc2 (10.Nc4 Ne4 11.Be4 d5+=) 10...Rc8 (10...0-0 11.Ne3+=) 11.Ne3 (11.Bd2 0-0+=) 11...Na5 (11...0-0 12.Bd2+=) 12.Bd2+- b5 (12...0-0 13.c4+-) 13.a4 (13.e5 Nh5+-) 13...Nc4 14.ab5 ab5 (14...Ne3 15.Be3 Bb5 16.Bb5 ab5 17.Qd3+-) 15.e5 de5 16.Ne5 Ne5 (16...Nb2 17.Qe2 Nd3 18.Qd3+-) 17.de5+- Nd5 18.Nd5 ed5 19.Qh5 (19.Qb1 Bc5+-) 19...g6 20.Qh6 (20.Qe2 0-0+-) 20...Bf8 21.Qe3 (21.Qf4 Bc5+-) 21...Bg7 (21...Bc5 22.Qg3 0-0 23.Rfd1+=) 22.Ra6 (22.Rfb1 0-0 23.f4 Re8 24.Bb5 g5+-) 22...0-0 23.f4 (23.Qd4 Re8 24.Re1 Qc7+=) 23...Qe7 (23...Re8 24.Qg3+-) 24.Rfa1 (24.Ra7 Qe8+-) 24...Rfe8 25.Qd4 (better 25.Qa7+-) 25...f6?? (better 25...Qc5+-) 26.ef6+- Bf6 (26...b4 27.Re1 Qf7 28.Re8 Be8 29.fg7+-) 27.Rf6 Bc6 (27...Qc5+-) 28.Ra6 Qd7 29.f5 Bb7 (29...g5 30.Rh6 Re7+-) 30.Rg6! hg6 (30...hg6 31.Rg6) 31.Rg6 Kh7 (31...Kf8 32.Qf6 Qf7 33.Bh6) 32.Qh4 1–0. Janek – Veyrath, internet, 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.c3 d6)

5.c3 d6 6.f4 Nf6 7.Bd3 Qc7 8.Nf3 a6 9.Bb2 (9.0-0 Nc6+=) 9...b6 10.c4 (10.0-0 0-0=) 10...Bb7 (10...d5 11.cd5 ed5 12.e5=) 11.Nc3 Nfd7 (11...0-0 12.0-0=) 12.Rc1 0-0 13.0-0 Re8 14.e5 g6 (14...f5 15.Qb3+=) 15.Qe2 Bf8 16.Ng5 (16.Ne4 Nc6+-) 16...Bg7 (better 16...Nc6!? 17.Nce4 d5 18.cd5 ed5+=) 17.Nce4+- Be4 18.Ne4 Bf8 19.Ba3 de5 20.Bf8 Rf8 21.fe5 Nc6 22.Qe3 Ne7?? (better 22...Rfd8 23.Rcd1 Rab8+-) 23.Qh6+- Kh8 (23...f5 24.ef6 Rf7+-) 24.Ng5 (24.Ng5 Nf6 25.Rf6 Qe5 26.Qh7) 1–0. Arnijas Fabregas,Marc (1870) – Prats Safont,Sergi, 10th Obert d'Escacs de Llinars del Vall, 2016. (=1.c3 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.e4 d6)

5.c3 Nf6 6.Bd3 0-0 7.Nf3 d5 8.e5 Ne4 9.Qe2 f5 10.Nfd2 Qc7 11.Ne4 fe4 12.Bc2 Nc6 13.0-0 Bd7 14.Ba3 Rac8 15.Be7 Ne7 16.Bb3 Nf5 17.Qd2 Qd8 18.Na3 Qa5 19.Nc2 Qc3 20.Qc3 Rc3 21.Rad1 Rfc8 22.Rd2 Bb5 23.Re1 Bd3 24.Ne3 Nd4 25.Bd5 ed5 26.Nd5 Rc1 27.Rdd1 Rd1 28.Rd1 Rc5 (better is 28...Ne2!? 29.Kh1 Kf7 30.Ne3-+) 29.Nf4 Re5 30.g3 (30.f3 Ne2 31.Ne2 Be2 32.Rd8 Kf7 33.fe4 Re4 34.Rd7 Re7 35.Re7 Ke7-+) 30…Ne2 (30...Ne2 31.Ne2 Be2-+) 0–1. Donoso Solzona,Francisco – Harper,Ryan (2225), Internet Section, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.c3 Nf6 6.Bd3 Qc7 7.Qc2 h6 8.Nf3 Nc6 9.0-0 a6 10.a4 d5 11.e5 Nd7 12.Ba3 Ba3 13.Ra3 Ne7 14.Nbd2 Nb6 15.Rb1 Bd7 16.a5 Nc4 17.Nc4 dc4 18.Be4 Bc6 19.Nd2 Bb5 20.Bf3 Nd5 21.Ne4 0-0 22.Nd6 Bc6 23.Nc4 Nf4 24.Bc6 Qc6 25.Ne3 Rfc8 26.Rb6 Qd7 27.g3 Nd5 28.Nd5 Qd5 29.Qb3 Qe4 30.Rb7 (30.Qb1 Qf3 31.Qe1 Rc7+/-) 30...Qe1 31.Kg2 Qe4 ½–½. Lorkiewicz,Ziemowit – Starczewski,Patryk, Lasker Memorial op–B Poland, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.c4 Bb4 6.Bd2 Bd2 7.Nd2 Ne7 8.Bd3 Nbc6 9.Ngf3 Ng6 10.0-0 0-0 11.e5 d5 12.ed6 Qd6 13.Ne4 Qd8 14.Bb1 b6 15.h4 (15.c5 Rb8+=) 15...Bb7 (better is 15...Nh4!? 16.Neg5 Nf3 17.Nf3 Bb7-/+) 16.Neg5= h6 17.Bg6 hg5 18.Bh7 Kh7 19.Ng5 Kh6 20.Qc1 Kg6 21.Qb1 f5 22.Ne6 Qf6?? (better is 22...Qh4 23.g3 Qh6 24.Nf8 Rf8-+) 23.Nf8= Rf8 24.d5 Nd4 (better is 24...Na5 25.h5 Kh7=) 25.g3?? (25.Qd3 Rh8 26.f4 Rh4 27.Rae1+-) 25...Re8 (better is 25...Nf3!? 26.Kg2 Nd2-/+) 26.Qd3= Ne2 27.Kh2 Qc3 (better is 27...Re4!? 28.Rae1 Qb2=) 28.Qc3+= Nc3 29.Rfe1 Re1 30.Re1 Kf7 31.d6 Bc6 32.Re7 Kf8? 33.Rc7 Ba4 34.Ra7 Bc6 35.Rc7 Ba4 36.Rb7 Ne4 37.Rb6 Nf2 38.Ra6 Bd7 39.Ra8 Kf7 40.Ra7 Ke6 41.c5 g6 42.Rc7 Ng4 43.Kg1 Ne5 44.Kf2 Nd3? 45.Ke3 Nb4 46.Ra7 Nd5 47.Kd4 Nb4 48.Rb7 Nc6 49.Ke3 Ne5 50.Rc7 Kd5 51.Kf4 Nd3 52.Kg5 Nc5 53.Kg6 Kd6 54.Ra7 Ke6 55.Ra8 Ke7 56.h5 Ne6 57.h6 Nf8 58.Rf8! (58.Rf8 Kf8 59.h7+-) 1–0. Augstein,Joerg (1835) – Mayerhoff,Lothar (1650), Mecklenburg VP LL1, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 b6 6.Bb2 Bb7 7.Qg4 Nf6 8.Qf3 Nc6 9.a3 Qc7 10.Nc3? (better is 10.Ne2!?=) 10...Nd4-/+ 11.Qe3 Bc5 12.Qg5 0-0?? (better is 12...Rg8-/+) 13.Nb5+/- Nb5?? (better is 13...Qc8 14.Nd4 Be4+/-) 14.Bf6 Bd4 (14...Bb4 15.Kf1 Qg3 16.fg3 g6 17.Qh6 Be4 18.Qg7) 15.e5 g6+- 16.Qh6 Bf2?? 17.Kf2 Qc5 18.Kg3 (18.Kg3 Qe5 19.Be5+-) 1–0. Greven,R – Van der Wakker,Peter, Alkmaar ACCOM op, 1992. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 b6 6.f4 Bb7 (6...b5 7.Bb2=) 7.Be3 (7.Qe2 Nc6 8.Nf3 Bh4 9.Nh4 Qh4 10.g3 Qh3=) 7...Nf6 (7...Bh4 8.Bf2+=) 8.Nd2 (8.Qf3 d5 9.e5 Ne4=) 8...Bb4 9.Qf3 Nc6 (9...d5 10.ed5 Bc3 11.Bb5 Kf8 12.Rb1 Qd5 13.Kf1-/+) 10.Ne2 Be7 (10...Rc8 11.e5 Ne5 12.Qb7=) 11.c3 Rc8 (11...h5 12.Rb1=) 12.0-0 (12.f5 e5=) 12...Na5 (12...h5 13.e5 Na5 14.Ne4 Be4 15.Be4 Ne4 16.Qe4=) 13.Qh3 (13.f5 h5+=) 13...a6 (13...h5 14.f5=) 14.f5 b5? (14...h5 15.fe6 de6 16.Bg5+=) 15.Rf4 (15.fe6!? de6 16.a4 ba4 17.Ra4 h5+/-) 15...Qc7 (15...Nc6 16.Rh4+=) 16.fe6+= de6 17.Raf1 e5? (better is 17...Rf8!?+=) 18.de5+/- Qe5 19.Rf5 Qe6 20.Bd4 Nc6 (20...Rd8 21.Qg3 Qa2 22.Qg7+/-) 21.e5 (21.Qg3 A) 21...Nd4? fails to 22.Nd4 (22.cd4?! 0-0=) 22...Qa2 23.Re5+-; B) 21...Qa2 22.Qg7 Rg8+=) 21...Nd5 (21...Nd7 22.Nf4 Qa2 23.Rf7 Nd4 24.cd4+-) 22.Qg3 0-0 23.Rh5 g6 24.Bf5 Nd4 25.cd4 Qc6 26.e6?? Ne3-/+ 27.Be4?? Nf1-+ 28.Kf1 fe6 29.Ke1 Qc7 30.Qh3 gh5 31.Bh7 Kh7 32.Qh5 Kg7 33.Qg4 Bg5! 34.Qg5 Kf7 35.Qh5 Ke7 0–1. Tikhostup,Victor – Yeromenko,Vyacheslav, Kiev Independence Cup–A 2nd, 2002. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 b6 6.Qg4 h5 7.Qf3 Nc6+=.

5.Bd3 Qc7 6.Ne2 d5 7.e5 Nc6 8.c3 Bd7 9.0-0 Na5 10.Ng3 g6 11.a4 h5 12.Qc2 0-0-0 (12...h4 13.Ne2+=) 13.Na3 a6 14.Be3 h4 15.Ne2 Nh6 16.Rfb1 Bc6 17.Nb5 ab5? (better is 17...Qb8!?+/-) 18.ab5+- Kd7 19.b6 (19.bc6?! Nc6 20.Qb3 Nf5+/-) 19...Qb8 20.Ra5 Nf5 21.c4 (21.Bf4 h3 22.g3 Rc8+-) 21...dc4 22.Bc4 Rc8 23.Qb3 Ne3 24.fe3 Rhd8 25.Nf4 Be4 (25...Ke8 26.Be6! fe6 27.Qe6 Rd6 28.ed6 Qd6 29.Qc8 Bd8+-) 26.Be6! fe6 27.Qe6 Ke8 28.Ng6 Bg6 29.Qg6 (29.Qg6 Kd7 30.Rd5 Bd6 31.Qf7 Kc6 32.Qe6 Re8 33.Rc5) 1–0. Aguilera,Jorge – Bertello,Miguel Angel, Zarate op 3th, 1974. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 Nf6 6.Ne2 d5 7.e5 Nfd7 8.0-0 Nc6 9.c3 0-0 10.Ng3 f6 11.Qh5 f5 (11...fe5?? 12.Qh7 Kf7 13.Bg6 Kf6 14.Nh5) 12.Ne2 Qe8 13.Qh3 Qf7 14.g4 g6 15.Bh6 Re8 16.gf5 gf5 (16...ef5!? 17.Nd2 Nb6=) 17.Nf4 Kh8 18.Be2 Rg8 19.Kh1 Nf8 20.Bh5 Ng6 21.Nd2 Bd7 22.Rg1 Nf4 23.Bf4 (23.Bf7 Nh3 24.Rg8 Rg8 25.Bg8 Kg8-/+) 23...Qf8 24.Bg6 (24.Rg8 Qg8 25.Rg1 Qf8+-) 24...Rg6? (better is 24...Rg7+=) 25.Rg6+- Qf7 26.Rag1 1–0. Leitner,G – Hochmayr,Georg, Vienna op–C, 1996. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 Nf6 6.f4 Nc6 7.c3 a6 8.a4 Qa5 9.Bd2 Qb6 10.Na3 d5 11.e5 Ne4 12.Be4 de4 13.Rb1 (13.Nc4 Qc7=) 13...Qc7= 14.Nc2 Na5 15.Ne3 Nc4 16.Ne2 Nd2 17.Qd2 b6 18.0-0 Bb7 (18...0-0!?=) 19.f5+/- ef5 20.Nf5 0-0 21.Qf4 (21.Ne7 Qe7 22.Rb6+-) 21...Kh8 (better is 21...Rae8!?+/-) 22.Qg3+- g6 23.Ne7 Qe7 24.Rb6 a5 25.c4 (25.Qe3 Rfc8+-) 25...Ba6 26.Qb3 Qc7 27.Rff6 (better is 27.Rc1+-) 27...Qc4+= 28.Qc4 Bc4 29.Kf2 Rfc8? (29...Rad8!? 30.Rfd6 Rd6 31.Rd6 Rb8+/-) 30.Nf4 Ra7 (better is 30...Rab8+/-) 31.d5?? (better is 31.Ke3+-) 31...g5= 32.Nh5 Bd5 33.Rh6 Rc2 34.Ke3 Rc3 35.Kf2 e3 36.Ke1 Rac7 37.Rb8 Rc8+= 38.Rc8 Rc8 39.Nf6 Kg7 40.Rh7 Kg6 41.Rh3 Bg2 42.Re3 Rc4 43.Rg3 Bc6 44.Kf1 Ra4 45.h3 Kf5 46.Re3 Kf4 47.Re1 Ra2 48.Nh5 Kf3 49.Rc1 Bb5 50.Ke1?? Re2 (50...Re2 51.Kf1 Rc2 52.Ke1 Rc1 53.Kd2 Rc5-+) 0–1. Zuazua Iglesias – Alvarez Fernandez, Asturias–ch Oviedo, 2004. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.e5 Nc6 6.Na3?? (better is 6.Qg4 Bf8 7.Nf3=) 6...Ba3 7.c3 Bc1 8.Rc1 Nge7 9.f4 Nf5 10.Qd3 0-0 11.Nf3 Nce7 12.g4 Nh6 13.h3 d6 14.Be2 Nd5 15.Ng5 g6 16.Qd2 Kg7 17.h4 (17.c4 Nc7-+) 17...Bd7 (17...f6 18.Ne4 fe5 19.fe5 de5 20.h5-+) 18.Ne4 de5 19.fe5 Bc6 20.Rh2 a6 21.h5 Rh8 22.Nf6 Ng8 23.h6 Kf8 24.Ne4 Rc8 25.Rf2 Qh4 26.Nd6= Rc7 27.g5?? Be8 28.c4-/+ Nde7 29.d5? ed5-+ 30.cd5 Rc1 31.Qc1 Qh1 32.Rf1 Qd5 33.Qc3 Nf5 34.Nf5= gf5 35.e6 f6 36.gf6 Qe6+= 37.f7 Bf7 38.Qh8 Qh6 39.Rf5 Qh4 40.Rf2 Qe4 41.Rf3 Qh4 42.Kd2 Qh6 43.Kd1 Qh4 44.Qc3+= Qa4 45.Kc1+/- Qa2?? 46.Bc4+- (46.Bc4 Qb2 47.Qb2 Nh6 48.Qf6 Ke8 49.Bf7 Nf7 50.Qf7 Kd8 51.Re3 h5 52.Re8) 1–0. Riesgo Alba – Lloveras Hernanz, Asturias–chB, 1999. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.e5 d6 6.Qg4 (better is 6.Nf3!?=) 6...de5-/+ 7.Qg7 Bf6 8.Qg3 ed4 9.Bd3 Nc6 10.Ne2 e5 11.Nd2 Nge7 12.Ne4 Ng6 13.Qf3 (13.Nf6 Qf6 14.c3 Bf5-/+) 13...Be7 14.g4 Bd7 15.g5 Nb4 16.Nf6? (better is 16.N2g3!?-+) 16...Bf6 17.gf6?? (17.Qf6 Qf6 18.gf6-+) 17...Bc6 18.Bb5 (18.Be4 Nc2! 19.Kd1 Be4 20.Qe4 Na1 21.Qb7 Rc8-+) 18...Bb5 (better is 18...Nc2 19.Kd1 Bb5 20.Kc2 Bc6-+) 19.Nd4 (19.Qb3 Qd5 20.Qd5 Nd5 21.Ng3-+) 19...Qd4 20.Qf5 Qa1 0–1. Markiewicz,Janusz – Duda,Ryszard (1630), 120th YMCA Spring D Poland, 2013. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Be7)

5.Nf3 a6 6.c4 d6 7.Bd3 Nf6 8.0-0 0-0 9.Bd2 Nc6 10.Qc2 g6 11.Rd1 Re8 12.Bh6 Nb4 13.Qc3 Nd3 14.Rd3 (better is 14.Qd3!? d5 15.Nbd2=) 14...Ne4-/+ 15.Qe1 Nf6 16.Nc3 Ng4 17.Bf4 Nf6 18.Rad1 (18.Bh6 Qc7 19.Nd2 b6-/+) 18...Bf8 19.Ne4 (better is 19.c5!?+=) 19...Ne4-/+ 20.Qe4 d5 21.Qe2 dc4 22.Rc3 b5 23.h4 Bb7 24.Nh2 (24.h5 Qd5 25.hg6 hg6-+) 24...Qh4 25.Be5 Rad8 (better is 25...Bb4!? 26.Re3 h5 27.Rb1-+) 26.Ng4 Bg7 27.Rh3 (27.Bg7 Kg7 28.Qe5 f6 29.Qc7 Kg8 30.Qf4-+) 27...Qe7 (better is 27...Qg5-+) 28.Bg7+= Kg7 29.Qe5 f6 30.Nf6 Qf6 31.Rh7 Kh7 32.Qf6 Bd5 33.Rc1 Rf8 34.Qe7 Kg8 35.Rc3 Rde8 36.Qg5 Kg7 37.Rg3 Rf6 38.Rh3 Ref8 39.Qh6 Kf7 40.Qh7 Ke8 41.f3 c3 42.Qc7 R6f7 (better is 42...Bc4!?+=) 43.Qc3 Bc4 (43...Ba2 44.Qc8 Ke7 45.Qa6+-) 44.a4 (44.Qa5!? Kd7+-) 44...Rc7 45.Qa5 Rd7 (45...Rc6 46.Qe1+-) 46.Qa6 Rd4 (46...Ke7+-) 47.Qa8 (better is 47.Rh7!? Rd1 48.Kf2 Rd2 49.Kg3 Rf7 50.Qc8 Ke7 51.Qc7 Rd7 52.Rf7 Kf7 53.Qd7 Kf6 54.ab5 Bb3+-) 47...Rd8 48.Qc6 Ke7 49.ab5 (49.Qc7 Kf6 50.Qf4 Kg7 51.Qe5 Rf6 52.Qc7 Rf7 53.Qd8 Rf8 54.Qc7 Rf7 55.Qe5 Rf6+-) 49...Rc8 50.Rh7 Kf6 51.Qd6 g5 (51...Kg5 52.Qd2 Rf4+-) 52.Qd4 e5 53.Qd6 Kf5 54.Re7 Rf6 55.Qd7 Be6 56.Qd3 Kf4 57.Qe4 Kg3 58.Re6 Rc1 (58...Rc1 59.Qe1 Re1) 0–1. Bailey,J – Piasecki,V, Detroit–ch MI opB, 1994. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 a6 6.Bd3 b5 7.0-0 Bb7 8.Bf4 Nf6+= 9.Nbd2 0-0 10.Qe2 d5 11.a4 b4 12.Rfc1 (12.e5 Nfd7+=) 12...de4= 13.Ne4 Ne4 14.Be4 Be4 15.Qe4 Nd7 16.a5 (16.c4 bc3 17.Rc3 Nf6=) 16...Nf6 17.Qd3 Nd5 18.Bd2 Qd6 19.c4 bc3 20.Bc3 Rab8 21.Rab1 (21.Bd2 f6=) 21...h6 (better is 21...Rb1!? 22.Qb1 Rb8-/+) 22.Bd2= Rfc8 23.Ne5 Bg5 24.Bg5 hg5 25.Rb8 (25.Rc8 Rc8 26.g3 Rc3=) 25...Qb8 26.Rb1 Qd6 (26...Qa8=) 27.Qd2 (27.g3 Rc3 28.Qe2 Nf6=) 27...Nf4 (27...f6 28.Nf3 g4+=) 28.Kh1 (28.g3 Qd4 29.Qd4 Ne2 30.Kg2 Nd4=) 28...Rd8 (28...Qd5 29.Rg1-/+) 29.g3 (29.Qc3 Qd5 30.Qf3 Qf3 31.Nf3 g4+=) 29...Qe5! 30.Qf4?? (30.de5 Rd5 Double attack (30...Rd2 Pinning; 30...Rd2 Deflection; 30...Rd5 Decoy; 30...Rd2 Clearance)) 30...Qd5-+ (30...Qd5 31.Qf3 Qf3 32.Kg1 Rd4-+; 30...gf4?! 31.de5 fg3 32.Rb6+=) 0–1. Boo Vallejo,M (1610) – Bello Filgueira,JA (1775), Mondariz ESP, 1st Marcote Mem, 2014. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 a6 6.Bd3 Nf6 7.0-0 d5 8.e5 Nfd7 9.Re1 Nc6 10.c3 f5 11.ef6 Nf6 12.Ng5 Qc7 13.Ne6 Be6 14.Re6 0-0 15.Bg5 Rae8 (better is 15...Qd7!? 16.Re2 Rae8+/-) 16.Bf6+- Bf6 17.Bh7! Kh8?? (17...Kh7 18.Qh5 Double attack) 18.Qh5 (18.Qh5 g6 19.Bg6 Kg8 20.Be8+-) 1–0. Riera Sola,Lluis (1950) – Ferrer Fargas,Jordi (1745), Moia ESP, 1st Open, 2013. (=1.e4 c5 2.b4 e6 3.bc5+= Bc5 4.d4 Be7)

5.Nf3 b6 6.Ba3 Bb7 7.Bd3 Nf6 8.Be7 Qe7 (8...Ke7 9.Nc3+/-) 9.Nbd2 Nc6 (9...d6 10.Qb1=) 10.c3 (10.e5 Nd5 11.Ne4 0-0+=) 10...Rc8 11.Qc2?? (better is 11.e5 Nd5 12.Ne4+=) 11...Nb4!-+ 12.cb4 (12.cb4 Rc2) 12...Rc2 13.Bc2 Qb4 14.0-0 0-0 15.Rab1 Qe7 (15...Qa3 16.Rfe1-+) 16.Rfe1 (16.Rbc1 d5 17.e5 Ne4-+) 16...g6 (16...Rc8 17.Bb3-+) 17.Rbc1 (17.Rb3 Rc8 18.Bb1 h6-+) 17...Ba6 (17...Rc8!? 18.Bb1-+) 18.e5 Nd5 19.Bb3 Nf4 (19...Bb7 20.Ne4-+) 20.Rc7-/+ Rc8 21.Ra7 Bd3 22.g3 Ne2 23.Kg2 Rc1 (better is 23...g5 24.h3 h5-/+) 24.Rc1+= Nc1 25.Bc4 Qb4 (25...Kg7 26.Bd3 Nd3 27.Ne4+=) 26.Bd3= Nd3 27.Rd7 (better is 27.Ne4!? Kg7 28.Rd7=) 27...Qa4-/+ 28.Rd6 Qd1 (28...Qa8 29.Kg1-/+) 29.Ne4 Qe2 (29...Kg7 30.Rd7 Qa4=) 30.Nfd2? (30.Nfg5!?=) 30...Ne1 (better is 30...Nf2!? 31.Nf2 Qd2-+) 31.Kg1-/+ Qd1 (31...Nf3 32.Nf3 Qe4-/+ (32...Qf3?! 33.Nf6 Kg7 34.Rd8 Qd1 35.Kg2=)) 32.Nf6= Kg7 33.Rb6?? (better is 33.Nde4=) 33...Nf3-+ 34.Kg2 Nd2 (34...Qd2?! 35.Kf3 Qd4 36.Rd6 Qe5 37.Ne4-+) 35.Ne8 Kh6 36.h4 Qf1 (36...Qf1 37.Kh2 Nf3) 0–1. Ortiz Fernandez,David (1835) – Garcia Cubero,Ivan, Autonomico–ch U14, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 b6 6.Bd3 Qc7 7.0-0 Bb7 8.Re1 d6 9.c4 Nd7 10.Nc3 a6 11.Ba3 b5 12.Qb3 bc4 13.Bc4 Rb8 14.Qa4 (14.Bb4 Ngf6 15.d5 a5+=) 14...Kf8 (14...Kd8!? 15.Rab1 Nb6 16.Rb6 Qb6=) 15.Nd2 Ngf6 16.Rab1 g6 17.Rec1 Kg7 (17...Qd8 18.Be2+/- (worse is 18.Ba6 Ba6 19.e5 Ng8+=)) 18.e5 de5 (18...Ng8 19.Bf1 Qd8 (19...de5? 20.Nd5 Qd8 21.Ne7 Ne7 22.Be7 Qe7 23.Rc7+-) 20.Bd6 Bd6 21.ed6 Ngf6+/-) 19.Be7+- ed4 20.Bf6 (20.Ne2!? Nc5 21.Bc5 Qc5 22.Ba6 Qa7+-) 20...Nf6+/- 21.Ne2 Ng4 22.g3 Qe5 (22...Qd6 23.Rb3+/-) 23.Nf4+- Rhd8 24.Re1 Qc5 (24...Qd6 25.Be6! Ne5+-) 25.Qb4 (better is 25.Be6!? Ne5 26.Qd1+-) 25...Qc6+/- 26.Ne4 (26.Re4 g5 27.Ne6 fe6 28.f3+-) 26...Ne5?? (better is 26...e5 27.f3 Nh2 28.Nh5 gh5 29.Kh2 Qc7+=) 27.Ne6!+- fe6? 28.Qe7 Nf7 29.Be6 Rf8 30.Qf6 Kh6 31.Qf4 Kg7 32.Bf7 Rbe8 33.Rb7 Qb7 34.Qf6 Kh6 35.Qg5 (35.Qg5 Kg7 36.Be8 Re8 37.Qf6 Kh6 38.Qd4+-) 1–0. Gvozdenovic,S (2125) – Dhame,Petraq, Open Bar MNE, 2010. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 Nc6 6.d5 Bf6 7.c3 ed5 8.ed5 Nce7 9.d6 Nc6 10.Bc4 Nh6 11.Bh6 gh6 12.Qd5 0-0 13.Qf5 Re8 14.Kf1 Ne5 15.Bb3 b6 16.Bc2 Ba6 17.Kg1 Ng6 18.h4 Rc8 19.h5 Nf8 20.Rh3 Rc5 (20...Bc3 21.Nc3 Rc3 22.Rg3 Ng6 23.hg6 hg6 24.Rg6 fg6 25.Qg6 Kf8 26.Qh6 Kf7 27.Ng5 Qg5 28.Qg5 Rc2 29.Qf5 Kg8 30.Qc2+-) 21.Rg3 Bg5 22.Qf4 Re6 23.Bb3 Rf6? (better is 23...Qf6!? 24.Qf6 Rf6+=) 24.Ng5+- hg5 (24...Rf4?? 25.Nf7 Rg5 26.Nd8 Kg7 27.Re3+-) 25.Rg5 Rg5? (better is 25...Kh8 26.Qh4 Rc8+-) 26.Qg5 Kh8 27.Bf7! Ne6 28.Qe5 Kg7? 29.Be6+- de6 30.Nd2 Bb7 31.Re1 Kf7 32.Re3 Bc6 33.Rg3 Qf8 34.Ne4 Be4 35.Qe4 Ke8 36.Qc6 (36.Qc6 Kd8 37.Qc7 Ke8 38.d7 Kf7 39.d8Q Qe7 40.Qce7) 1–0. Dalheim,Even – Handberg,Rune, NOR–ch M2 Norway, 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 d5 6.e5 Nc6 7.c3 a6 8.Bd3 f5 (8...h5 9.Na3+=) 9.0-0 g6 (9...h5 10.Qe2+=) 10.Nbd2 Nh6 11.h3 Nf7 12.Nh2 (12.Nb3 h5+=) 12...h5 (12...Ng5 13.a3=) 13.f4 Na5 (13...g5 14.fg5 Ng5 15.Nhf3=) 14.Rb1 (14.Nhf3 Qc7=) 14...b5 15.Qf3 (15.a4 Nc4 16.Nc4 bc4=) 15...Bd7 16.Qg3 Rg8 17.Ndf3 (17.Nhf3 h4 18.Qf2 Qc7=) 17...h4 18.Qe1 Rc8 19.Be3 Nc4 20.Bf2 g5 21.fg5 Ng5 22.Ng5 Bg5 23.Nf3 Rg6 (23...Bd2 A) worse is 24.Nd2 Qg5 25.Bg3 Nd2-+ (worse is 25...Qg3 26.Qg3 Rg3 27.Bc4 dc4 28.Rbc1+=; worse is 25...hg3 26.Bc4 bc4 27.Rb7+=; 25...Qd2?! 26.Bc4 Qg5 27.Bd5 ed5 28.e6+=); B) 24.Qe2 Bc3 25.Bh4+=) 24.Nh4 (24.Bh4!? Bh4 25.Nh4+=) 24...Rg7 25.Nf3 Kf7 26.Qe2 (26.Ng5 Qg5 27.g3 Nd2-/+) 26...Be7 27.Nh2 Qh8 28.Kh1 Rcg8 29.Rg1 Bh4 (29...Bc6 30.Nf1=) 30.Rbf1 (30.Bc4 dc4 31.d5 Be7+/-) 30...Ke7 (30...Bd8!?=) 31.Bh4 Qh4 32.Nf3 Qg3 33.Bc4 dc4 34.d5 ed5? 35.e6!+/- Be6?? 36.Nd4+- Rg5 37.Nf5 Rf5 38.Rf5 Qc3?? 39.Qf2 d4?? 40.Rf7 1–0. Schneider,Georg (2110) – Kugler,Josef (1850), Bayern–ch Seniors, 2000. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 d5 6.e5 Nc6 7.c3 Bd7 8.Bd3 h5 9.Nbd2 Nh6 10.0-0 g6 11.Nb3 Nf5 12.a4 Qc7 13.Ng5 Na5 14.Na5 Qa5 15.Bd2 Qd8 16.Nf3 g5 17.Qb3 g4 18.Ne1 Bc6 19.f3 Bg5 20.f4 Be7 21.Nc2 Qd7 22.Ra2 0-0-0 23.Nb4 Kb8 24.Nc6 Qc6 25.Rb1 Ka8 26.a5 a6 27.Qc2 Qc8 28.Rab2 Ng7 (better is 28...Rd7 29.Bf5 ef5 30.Qf5 Rc7+-) 29.Rb7 Qb7 30.Rb7 Kb7 31.Qb3 Kc7 32.Qb6 Kd7 33.Ba6 Ke8 34.Bb7 Nf5 35.a6 Kf8 36.a7 Kg7 37.Qc6 1–0. Husarik,Branko (2105) – Vanecek,Stanislav (2030), CZE–chT2c, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Nf3 d5 6.e5 Nc6 7.c3 h5 8.Bd3 Nh6 9.a4 Nf5 10.0-0 a6 11.Na3 g5 12.Nc2 g4 13.Nfe1 Bg5 14.Ne3 g3 15.hg3 h4? (15...Be3 16.Be3 h4 17.Bf5 ef5 18.Qf3+=) 16.g4 (better is 16.Nf5 ef5 17.Bg5 Qg5 18.Nf3+-) 16...Ng3?? (better is 16...Ne3 17.Be3 h3+=) 17.fg3+- hg3 18.Qf3 (better is 18.Nf3 Be7 19.g5+-) 18...Be3 19.Rf2 gf2 (19...Rh1! 20.Kh1 Qh4 21.Kg1 Bf2 22.Qf2 gf2 23.Kf1 fe1Q) 20.Kf1 Rh1 (20...Rh1 21.Ke2 fe1Q) 0–1. Lamotho,Jean – Zalm,NE, Dubai ol (Men), 1986. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.f4 d5 6.e5 Nc6 7.Nf3 Bd7 8.c3 f6 9.Bd3 Nh6 10.0-0 0-0 11.Qe1 Rb8 12.Na3 a6 13.Nc2 b5 14.a3 fe5 15.fe5 Nf7 16.Ne3 Qc7 17.Ng4 Rbc8 18.Qg3 Qd8? (18...Nb8 19.Bd2 Rcd8+/-) 19.Nf6!+- Bf6 20.ef6 Qf6 21.Ng5 Qe7 22.Bh7 Kh8 23.Qh4 (better is 23.Rf7 Rf7 24.Qh4 (24.Nf7?! Kh7 25.Nd6 e5 26.Nc8 Bc8+-) 24...Rf1 25.Kf1 Qf6 26.Bf4+-) 23...Nh6+= 24.Be3 Nd8 (better is 24...e5!?=) 25.Rf8+/- Qf8 26.Rf1 Qe8?? (26...Qa3 27.Ne4 Ndf7+-) 27.Bg6+- Qg8 28.Nf7 Ndf7 29.Bf7 (better is 29.Rf7 Qf7 30.Bf7+-) 29...Qf8?? (29...Qh7 30.Qe7 Nf7 31.Qd7 Rf8 32.Rf7 Qb1 33.Kf2 Qc2 34.Ke1 Rf7 35.Qf7 Qc3 36.Ke2 Qa3 37.Qe6 Qa2 38.Kf3 Kh7+-) 30.Be8 (30.Be8 Qe8 31.Bh6+/-) 1–0. Cuberli,Emiliano – Orsatti,Felicitas, Najdorf U14 op, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.f4 d5 6.e5 Nc6 7.Nf3 h5 8.Bd3 Nh6 9.0-0 Nf5 (9...Qa5 10.c3=) 10.c3 (10.Bf5 ef5 11.Ba3 Bd7+=) 10...Nh4 (10...h4 11.Bf5 ef5 12.Qd3=) 11.Nh4+= Bh4 12.Ba3 (12.Nd2 Be7+=) 12...Be7 13.Be7 Qe7 14.Nd2 g6 15.Nf3 Bd7 16.Rb1 Rb8 17.Qc2 Qf8 (17...0-0 18.Rbd1=) 18.Kh1 (18.Ng5 Qg7+=) 18...Ne7 (18...Qe7 19.Qd2+=) 19.Rb4 (19.Ng5 Qg7+=) 19...Qh6 20.Ng5 Nf5 (20...0-0 21.Rc1+=) 21.Bf5 gf5 22.h4 (22.Qb3 Bc6+=) 22...Bc6 23.Qb2 Qf8 24.Qa3 Ra8 25.Qb2 Qe7 (25...Rb8 26.Rf3+/-) 26.Rb1 Qc7 27.a4 a5 28.Rb6 Rb8 29.Kh2 Kf8 30.Qf2 Ba4?? (better is 30...Kg7+=) 31.Re6+- Be8 (31...Qc3 32.Rf6 Kg8 33.Nf7+-) 32.Rf6 Ke7 33.Qb2 b5 34.Qa3 Kd8 35.Rd6 Kc8 36.Rd5 Bc6 37.Rc5 Kd8 38.d5 (38.d5 Rh6 39.Rc6 Rc6 40.dc6+-) 1–0. Jaramillo,Martin – Manjarres,Mauricio, ATL–ch Barranquilla, 2000. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.f4 d5 6.e5 f5 7.g4 (7.Nf3 Nc6+=) 7...fg4 (7...Bb4 8.Bd2 Qh4 9.Ke2 Qg4 10.Nf3=+) 8.Qg4= Bh4 (8...g6!?=) 9.Kd1+= Qe7?? (better 9...g6+=) 10.Nf3+- Bf2 11.Ke2 (11.Qg2 Bd4 12.Nd4 Nh6+-) 11...Bd4 12.Nd4 Nh6 13.Qh5 Kd8 (13...Nf7 14.Kd1 g6 15.Qh3+-) 14.Kd1 Nc6 15.Ba3 Qf7 16.Qf7 Nf7 17.Nb5 (better 17.Nc6!? bc6 18.Rg1 g5 19.fg5 Rg8+-) 17...g5 18.fg5 Nce5 19.Bb2 Rg8 20.h4 Bd7 (20...Ng4 21.Rg1 e5 22.Bd3+-) 21.Nd4 (21.Nd6 Nd6 22.Be5 Nf5+-) 21...Rc8 (21...Ng4 22.Kc1 e5 23.Bd3+-) 22.Bh3 (better 22.Nb3 a6+-) 22...Ke7? (better 22...Nc4 23.Ne6 Be6 24.Be6 Nb2 25.Kc1 Nd3 26.Kd2 Nde5 27.Bc8 Kc8+-) 23.Ba3+- Kd8 24.Be6 Be6 25.Ne6 Kd7 26.Nd4 Nc4 27.Bc1 Nfe5 28.Na3 Rgf8 29.Nc4 Rc4 30.Nb3 (30.Be3 b6+-) 30...Rf2 (30...Ng4 31.Re1 Nf2 32.Kd2+-) 31.Re1 Nf3 32.Re2?? (32.Be3 Ne1 33.Bf2 (33.Ke1?! Rfc2 34.Rd1 Kd6=+) 33...Nc2 34.Rc1+-) 32...Rf1 33.Re1 Re1 0-1. zsolti_83 (2380) - Gubancs (2380), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.f4)

5.f4 d6 6.Nf3 a6 7.c4 (7.Bd3 Nf6+=) 7...b6 (7...d5 8.ed5 ed5 9.Qa4 Nc6 10.Nbd2=) 8.Nc3 Bb7 9.Bd3 Nd7 10.0-0 Rc8 11.Be3 Ngf6 12.Rc1 e5 13.fe5 (13.Nd5 ed4 14.Nd4+=) 13...de5? (13...Ng4 14.ed6 Ne3 15.de7 Qe7 16.Nd5 Bd5 17.cd5=) 14.de5 (better 14.Ne5 Ne5 15.de5+/-) 14...Ng4= 15.Bf4 (15.Bd4!? Nde5 16.Nd5=) 15...Bc5-/+ 16.Kh1 Nf2 17.Rf2 Bf2 18.Nd5 Bd5 (better 18...Nc5-/+) 19.ed5+/- Bc5 20.Qe2 Kf8 (20...Nf8!?+/-) 21.Rf1 h6? (better 21...Qe7+-) 22.e6 Nf6 23.ef7 g5 24.Ng5 hg5 25.Bg5 Qd6 26.g3 Qg3?? (better 26...Bd4 27.Qe6 Qe6 28.de6 Ke7=) 27.Bf6+- Rh2 (27...Rh6 28.Bf5 Ra8+-) 28.Qh2 Qh2 29.Kh2 Kf7 30.Bd4 Kg8 31.Bc5 bc5 (31...Rc5 32.Rf6 Kg7 33.Rb6+-) 32.Rb1 (32.Rf6 Ra8+-) 32...Kg7 (32...Re8 33.d6 Kf7 34.Rf1 Kg7 35.Rf5+-) 33.Rb6 Rh8 34.Kg3 Rh1 35.Ra6 Rd1 36.Be2 Rd2 37.Kf2 Rb2 38.Rc6 Rb4 (38...Ra2 39.Rc5 Kf6 40.d6+-) 39.Rc7 (39.Rc5!? Ra4+-) 39...Kf6 40.Rc5 Ke5 (40...Ra4 41.Rc6 Ke7 42.d6 Kd7 43.Rb6 Ra2 44.Ke3+-) 41.Rc6 Kd4 (41...Ra4 42.Ke3 Ra2 43.Re6 Kf5 44.Bd3 Kg4 45.d6+-) 42.Rg6 (better 42.d6 Rb7+-) 42...Ra4 (42...Rb7 43.Ra6+-) 43.Rg4 (43.Rg4 Kc5 44.Ke3+-) 1-0. zsolti_83 (2505) - Zedoido (1995), Rated Bullet game, lichess.org, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.f4)

5.f4 d6 6.Nf3 Nf6 7.Bd3 0-0 8.0-0 Nbd7 9.c4 Qb6 (9...e5 10.c5 d5 A) 11.de5? Bc5 12.Kh1 de4-+; B) worse 11.Ne5 Nc5 (worse 11...Ne4 12.Qb3+=; worse 11...de4 12.Bc4+=) 12.ed5 Nd3 13.Qd3 Nd5=+; C) 11.fe5 de4 12.ef6 Nf6 13.Be2=) 10.Be3 (10.Nc3 Qa5 11.Bd2 Qh5+-) 10...d5 (10...Ng4 11.Bf2=) 11.c5 (11.cd5 ed5 12.e5 Ng4+=) 11...Qc7 (11...Nc5 A) 12.dc5? Bc5 13.Bc5 Qc5 14.Kh1 de4-+ (worse 14...Ne4 15.Be4 de4 16.Ng5+=); B) 12.e5 Nd3 13.ef6=) 12.Ng5 (12.e5 Ng4 13.Bd2 f5+=) 12...h6 (better 12...de4!? 13.Ne4 Nd5=) 13.e5+- Ne8? (13...hg5 14.ef6 Nf6 15.fg5+-) 14.Qh5 (14.Nh7 b6 15.Nf8 Bf8 16.cb6 Qb6+-) 14...Bg5? (better 14...Nc5 15.Bh7 Kh8+=) 15.fg5+- g6 (15...Nc5 16.Rc1 (16.dc5 Qe5 17.Bd2 Qa1+-) 16...Nd3 17.Rc7 Nc7 18.gh6+-) 16.Qh6 Ng7 17.Rf3 (17.Rf3 Re8 18.Rh3+-) 1–0. Hilbert,Stephan J – Joubert,Hennie, FICGS, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.f4 d6)

5.f4 Nf6 6.Bd3 Nc6 7.Ne2 a6 8.0-0 d6 9.Nd2 b5 10.a4 b4 11.Bb2 0-0 12.Kh1 Bd7 13.Ng3 Qb6 14.Nc4 Qa7 15.e5 (15.d5 Nd8+=) 15...de5 (15...Ne8 16.a5+=) 16.fe5+= Nd5 17.Qh5 g6 18.Qh6 Rfb8? (18...f5 19.ef6 Bf6+-) 19.Rf7!+- Kf7 (19...Kf7 20.Qh7) 20.Qh7 Ke8 21.Qg8 Bf8 22.Bg6 Kd8 23.Qf8 Kc7 24.Qd6 Kc8 25.Rf1 Qc7 (25...Nd8 26.Be4 Ba4 27.Rf8+-) 26.Rf8 (26.Qc5 Qa7 27.Ne4 Qc5 28.Nc5 Nd8+-) 26...Kb7 27.Rb8 (27.Rf7 Qd6 28.ed6 Kc8+-) 27...Rb8 (27...Nb8 28.Qc7 Kc7+-) 28.Qc7 (better is 28.Ne4 Qd6 29.Ncd6 (29.Ned6?! Kc7+-) 29...Kb6 30.Nc4 Ka7 31.Nc5+-) 28...Kc7+/- 29.Be4 Nc3+= 30.Bc3 bc3+= 31.h3 Nd4 32.a5 Rb1 33.Kh2 Ba4 34.Nb6 Bc2-+ 35.Bc2 Nc2 36.Ne2 Rb3 37.Na4 Rb5 38.Nac3 Re5 39.Nf4 Kd6 40.g4 Ra5 41.h4 Ke5 42.Ng6 Kf6 43.Nf4 Ne3 44.Nh5 Kf7 45.Kh3 Ra3 46.Ne4 Nf5 47.Nhg3 Ng3 48.Ng3 Rg3! 49.Kg3 a5 0–1. Riabchenko,A – Gimadeev,R, RUS–ch U12 Kazan, 2000. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Qg4 g6 6.Qd1 Qc7 =.

5.Qg4 g6 6.Bd3 Nf6 7.Qe2 0-0 8.Nc3 d6 9.Nf3 Nc6 10.0-0 a6 11.a4 Qc7 12.Bd2 Bd7 13.Rab1 Rfc8 14.h3 h5 15.Qe3 Bf8 16.Qg5 Bg7 17.Ne2 Nh7 18.Qg3 Ne7 19.Bf4 Ba4 20.Bd6 Qd7 21.c4 Rd8 22.c5 Bc6 23.Bc7 Rdc8 24.Be5 Nf6 25.Qh4 Nh7 26.Bg7 Kg7 27.Ne5 Qe8 28.Nc4 Rd8 29.Nd6 Qd7 30.Qf4 Nc8 31.Nc4 a5 32.Ne5 Qe8 33.Nc6 bc6 34.Ra1 Rd7 35.Ra3 Rda7 36.Rfa1 Qd7 37.Bc4 Qb7 38.Qd2 Qc7 39.Nc3 Nf6 40.f3 Qd7 41.Na4 Rb7 42.Nb2 Rab8 43.R1a2 Qc7 44.Ra5?? (better is 44.e5 Nd5 45.Bd5 cd5 46.Nd3+/-) 44...Rb2-/+ 45.Rb2 Rb2 46.Qb2 Qa5 47.Qb7? Qd8-/+ 48.Be6 Ne7 49.d5 fe6 50.d6 Kf7 51.de7 Qe7 52.Qc6 Qd7 ½–½. Demeter,Vilmos (2165) – Kotroczo,Ferenc, HUN–chT3 Hungary, 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Qg4 g6 6.e5 Nc6 7.Nf3 (7.c3 h5 8.Qf3 Qc7+=) 7...a6 8.Bd3 (8.c3 b5=) 8...Nb4 9.Be4 (9.Qe4 f5 10.ef6 Nf6=) 9...Rb8 (better is 9...d5!? 10.Bd3 Qc7+=) 10.0-0 (10.c3 d5 11.ed6 Bd6 12.cb4 f5+=) 10...d5 11.Bd3 Nd3 12.cd3 Qc7 (12...Bd7 13.Be3=) 13.Bd2 (13.Qf4 Ra8=) 13...Bf8 (13...Qc2 14.Rc1 Qd3 15.Bg5=) 14.Rc1+= Qd7 (14...Qd8 15.Qf4+=) 15.a4 Nh6 16.Qh3 Nf5 17.Ra2 (better is 17.g4 Ne7 18.Bb4+=) 17...Bg7? (17...b5 18.g4 Ng7 19.Rac2 ba4 20.Ba5+=) 18.Bb4 (18.Rac2 Ne7 19.Bh6 Bh6 20.Qh6 Nf5+/-) 18...Bh6 (18...b5 19.Rac2 h5 20.ab5 Qb5 21.Ba3= (worse is 21.Rc8 Rc8 22.Rc8 Kd7 23.Rh8 Bh8-/+)) 19.Rc3 (better is 19.Rcc2 Bf8 20.Bf8 Kf8 21.g4+/-) 19...Ra8?? (better is 19...Bf8 20.Bf8 Kf8+/-) 20.g4+- Bf8 (20...Nd4 21.Nd4 Bg7 22.Qe3+-) 21.Bf8 (21.gf5?! Bb4 22.fg6 Rg8+= (22...Bc3? 23.g7 Rg8 24.Qh7 Rg7 25.Qg7+-)) 21...Nd4 (21...Kf8 22.gf5 ef5 23.Qh4+-) 22.Nd4 (better is 22.Bg7!? Nf3 23.Qf3 Rg8+-) 22...Rf8 23.a5 (better is 23.Qh6 Rb8 24.Nf3+-) 23...f6 (23...Qe7 24.Rb2 (24.Qh7?! Qb4 25.Rac2 Bd7+=) 24...Qd8 25.Rb6+-) 24.ef6 (better is 24.Rac2 Rf7 25.ef6 e5+-) 24...Rf6 25.Rac2 (25.Re2 Kf8 26.Nf3 d4+-) 25...Rf4 (25...e5 26.Qg3 ed4 27.Qe5 Qe6 28.Rc8 Rc8 29.Rc8 Kf7 30.Rc7 Kg8 31.Qd4 b5+-) 26.Rc7 Qa4 (26...Rd4 27.Rd7 Bd7 28.Qh7 Rg4 29.Kf1 Rd8+-) 27.Rc8 (better is 27.Qh7 Bd7 28.Qg6 Rf7 29.Ne6 Qc2 30.Rc2 Be6 31.Qg8 Ke7 32.Qa8+-) 27...Rc8 28.Rc8 Kd7 29.Rh8 Qd1-+ 30.Kg2 Rg4 31.Qg3 Rd4?? 32.Rh7 Kc6 33.Qc7 Kb5 34.Qb6 Ka4 35.Qd4 Kb3 36.Rb7 Kc2 37.Qb2 Kd3 38.Rb3 Ke4 39.Nc3 1–0. Wiest,Kurt (1795) – Mainka,Susanne, MVS Bezirks–ch, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Qg4 g6 6.e5 d6 7.f4 Nh6 8.Qd1 Nf5 9.Nf3 Nc6 10.c3 a6 11.Bd3 Ng7 12.0-0 b5 13.Be3 d5 14.Nbd2 Rb8 15.a3 Bb7 16.g4 h6 17.Qc2 Kd7 18.f5 gf5 19.gf5 Qg8 20.Kh1 Ne8? (better is 20...Nf5!? 21.Bf5 ef5 22.Qf5 Ke8=) 21.Rg1 Qf8 22.a4 Nc7 23.Rab1 b4 24.f6 Bd8 25.Nb3 a5 26.Nc5 Kc8 27.Bd2 (worse is 27.Nb7 Rb7 28.Rgc1 Qg8+-) 27...bc3 28.Bc3 (worse is 28.Qc3 Ba8+-) 28...Rg8 29.Rgc1 (29.Nb7 Rb7 30.Rgc1 Rb1 31.Rb1 Kd7+-) 29...h5 30.Bd2 Rg4 (30...Ba8+-) 31.Nb7 Nd4 32.Nd4 Rb7 33.Ba6 (33.Ba6 Rg1 34.Kg1 Qg8 35.Kh1 Qg2 36.Kg2 Kb8 37.Rb7 Ka8 38.Qc5 Na6 39.Qa7) 1–0. Demeter,Vilmos (1830) – Barnoth,Robert (1675), HUN–chT2 Barcza, 2008. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bb2 Nf6

6.Nd2 Qa5 7.Bd3 b6 8.f4 Bb7 9.c3 0-0 10.g4 h6 (10...d5 11.Nb3 Qa4 12.e5+=) 11.h4 (11.a4 Ne4 12.Be4 Bh4 13.Kf1 Be4 14.Ne4 f5+/-) 11...h5 (better is 11...d5!? 12.e5 Ne4=) 12.g5+/- Ng4 13.Qb3?? (13.a4 b5 14.ab5+/- (14.Bb5?! Ne3 15.Qb3 Ng2 16.Kd1 d5=)) 13...Bc6 (13...d5 14.Ne2+=) 14.a4 d5 15.e5 Ne3 16.Ke2 Nc4 17.Nc4?? (17.Ngf3 Nd2 18.Kd2=) 17...dc4-+ 18.Bc4 Bh1 19.Kf2 Bd5 20.Ne2 Nd7 (better is 20...a6 21.Bd5 ed5 22.f5-+) 21.f5 (21.Bd5 Qd5 22.Qd5 ed5 23.f5-+) 21...Ne5! 22.f6 Bc4 23.Qc2 Ng4 24.Ke1 gf6 25.gf6 (25.Nf4 Rad8 26.Ne2 Qd5-+) 25...Bf6 26.Kd2 Bh4 27.Rh1 Bg5 (27...Qg5 28.Kd1 Nf2 29.Ke1 Nh1 30.Kd1 Nf2 31.Ke1 Qg2 32.Qg6 fg6 33.Kd2 Bg5 34.Nf4 Bf4 35.Ke1 Qf1) 28.Kd1 Nf2 (better is 28...Ne3 29.Kc1 Nc2 30.Nf4 Bf4 31.Kd1 Qg5 32.Bc1 Qg4 33.Kc2 Qe2 34.Bd2 Qd2 35.Kb1 Qa2) 29.Ke1 Nh1 30.Qe4 Qd5 (30...Qd5 31.Qd5 ed5-+) 0–1. Calder,John – Buzenchi,Radu, Internet Section, 2004. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Nd2 Nc6 7.Ngf3 0-0 8.c4 Bb4 9.Bd3 d5 10.e5 (10.0-0 dc4 11.Nc4 Rb8+=) 10...Nd7 (better is 10...dc4!? 11.ef6 cd3 12.fg7 Re8=) 11.Qc2+= g6 12.0-0 dc4 13.Bc4 Nb6 14.Bd3 Bd7 15.h4 (15.a3!? Be7 16.Rfc1+=) 15...Rc8= 16.Qb1 Be8 (16...Bd2 17.Nd2 Qh4 18.Ne4=) 17.Ne4 Nd5 18.Bc1 Be7 (18...f5!? 19.Nc5 Bc5 20.dc5 Qc7=) 19.Bg5 (19.Qb7? Ncb4 20.a3 Nd3-+) 19...Qb6 (19...Ndb4 20.Rc1+/-) 20.Nf6 (20.Qb6 Nb6 21.Rfb1 Kg7+/-) 20...Nf6 (20...Bf6 A) worse is 21.ef6 Nd4 22.Qb6 Nf3 (22...ab6?? 23.Nd4 Bc6 24.Rfc1+-) 23.gf3 Nb6-/+; B) 21.Qb6 Nb6 22.Bf6+=) 21.Bf6 (21.Qb6 ab6 22.ef6 Ba3+/-) 21...Ba3? (21...Qd8 22.Be7 (worse is 22.Qb7 Bf6 23.ef6 Rb8-+) 22...Ne7 23.h5=) 22.Qe1 (better is 22.Qb6 ab6 23.Rfb1+-) 22...h5?? (better is 22...Be7 23.Rb1 Qd8 24.Be7 Ne7 25.Rb7 Bc6 26.Ra7 Bf3 27.gf3 Qd4 28.Re7 Qd3=) 23.Qe3 Kh7 24.g4! hg4?? 25.h5 Rg8?? 26.Ng5 Kh6 27.Nf7 Kh7 28.Qh6 1–0. Strobel,M – Maurer,J, Kecskemet Trainingslager, 1992. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Bd3 0-0 7.f4 Qb6 8.Qc1 Nc6 9.c3 Ng4 10.Nf3 Ne3 11.Kf2 (11.Qe3?? Qb2 12.0-0 Qa1-+) 11...Ng4 12.Ke2 Re8 13.e5 d6 14.Nbd2 de5 15.fe5 f6 16.h3 Nh6 17.ef6 Bf6 18.Ne4 Be7 19.Rb1 Qa5 20.a3 e5 21.d5 Qd5 22.c4 Qd8 23.c5 Nd4 (better is 23...Qc7-/+) 24.Nd4+= ed4 25.g4 (better is 25.Qc4!? Kh8 26.Qd4 Qd4 27.Bd4+=) 25...Kh8 26.Qc4 Bf6 27.Rbf1 Be6 28.Qc2 Bd5 29.Kd1? (29.Kd2 Qe7 A) 30.Nf6?? Qe3 31.Kd1 Bf3 (31...gf6?! 32.Rh2-/+) 32.Rf3 Qf3 33.Be2 Qh1 34.Kd2 gf6 35.Bd4 Rad8-+; B) 30.Re1-+) 29...Ng8?? (29...Be4 30.Be4 d3 31.Qb3 Re4 32.Rf6 gf6 33.g5-+) 30.g5? (30.Nd6 Re7 31.Rhg1 b6-/+) 30...Bg5 31.Nd6 Re7 32.Rhg1 Be3 33.Rg4 b6 34.Bh7 Nh6 35.Rh4? bc5 36.Nf5 Rb7 37.Nh6 Bb3 38.Qb3+- Bh6 39.Qb7 Rb8 40.Qe4 Qg5 41.Rhf4 Qh5 42.Kc2 Bf4 43.Rf4 Qh3 44.Rh4?? Qb3= 45.Kd2 Qb2 46.Qc2 g5 47.Rh5+- Kg7 48.Rg5 Kh6 49.Rc5 d3 50.Bd3 Qa3 51.Rc6 Kg7 0–1. Suchsland,Helmut (1730) – Boettcher,Horst (1705), Bad Wildungen op Seniors–B 1st, 2004. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Bd3 Nc6 7.Ne2 Nb4 8.0-0 Qb6 9.Nbc3 Nd3 10.Qd3 a6 (better is 10...Ne4!? 11.Ne4 Qb2+=) 11.Rab1 d5 12.Nf4 de4 13.Ne4 Qc7 14.Qf3 (14.Nf6 gf6 15.Nh5 Bd7+=) 14...Qc2 15.Nf6 gf6 16.d5 Qf5 17.de6 fe6 18.Qg3 Bd6 19.Qg7 Rf8 20.g3 Rf7 21.Qg8 ½–½. Alekhine,Alexander – Filipcic,Branko, JUG tour sim, 1930. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

5.Bd3 Nc6

6.c3 d5 7.e5 Qa5 8.Ne2 b5 9.0-0 Ba6 10.Nd2 Qb6 11.Rb1 Rc8 12.c4 Nd4 13.Nd4 Qd4 14.Nf3 (worse is 14.cb5 Qd3 15.Rb3 Qc2 16.ba6 Qa2=) 14...Qb6 15.cd5 ed5 16.Qe2 Bc5 17.Bb5 Bb5 18.Rb5 Qc6 (better is 18...Bf2!? 19.Kh1 Qc6=) 19.Bb2 a6 20.Ra5 Ne7 21.Ra6 (worse is 21.Qa6 Bb6 22.Ra3 0-0+/-) 21...Qb7 22.e6 f6 23.Ra4 0-0 24.Rg4 Rc6 25.Re1 Qb6 26.h4 (26.Bd4!?+/-) 26...Bb4 27.Bd4 Bc5 28.h5 Nf5 29.Bc5 Qc5 30.Qd3 Ne7 31.Nd4 Rc7 32.Qg3 g5 33.hg6! hg6 (33...Ng6 34.Nb3 Combination; 33...hg6 34.Nb5 Combination) 34.Nb5! Rb7 (34...Qb5 35.Qc7) 35.Nd6 Ra7 36.Nf7 Kg7 (36...Rf7 37.ef7 Kf7+-) 37.Qh2 Rf7 38.ef7 (better is 38.Rh4 g5 39.Rh7 Kg6 40.Qh6 Kf5 41.Qh3 Kg6 42.Rf7 Qf2 43.Kf2 Ra2 44.Kg1 g4 45.Qh7 Kg5 46.Rg7 Kf4 47.Qh6 Kf5 48.Qh5 Kf4 49.Qg4) 38...Ra2 39.Rf4 Qc3?? 40.Qh8! Kf7 41.Qh7 Kf8 42.Qe7 (42.Qe7 Kg8 43.Qd8 Kg7 44.Re7 Kh6 45.Qh8 Kg5 46.Qh4) 1–0. Spielmann,Rudolf – Grob,Henry, Merano, 1926. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.c3 d5 7.e5 Qa5 8.Ne2 b6 9.0-0 Ba6 10.Ng3 Rc8 11.Ba6 Qa6 12.Qg4 Bf8 13.a4 Nge7 14.Nh5 Ng6 15.f4 Qd3 16.f5 ef5 17.Qd1 Qd1 18.Rd1 Na5 19.Ra2 Ne7 20.Rf1 Kd7 21.Ba3 g6 22.Nf6 Ke6 23.g4 fg4 24.Be7 Be7 25.Ng4 Nc4 26.Raf2 h5-+ 27.Nf6 Ne3 0–1. Coates,Stephen (1750) – Stibal,George (1745), IECG, 2004.

6.c3 d5 7.e5 Bd7 8.Qg4 g6 9.h4 (9.Ne2 Qc7+=) 9...h5 10.Qg3 Nh6 (10...Qb6 11.Ne2+=) 11.Nf3 (11.Bh6 Rh6 12.Nd2 Kf8=) 11...Nf5 12.Bf5 ef5 13.Ng5 (13.0-0 a6=) 13...Rg8 (13...Qa5!? 14.0-0 Nd8=) 14.0-0 Be6 (14...Kf8 15.Ba3+/-) 15.Nd2 (15.a4 Na5+=) 15...Qa5 (15...Bg5!? 16.hg5 Kf8+=) 16.Nb3 Qa4 17.Bd2 (17.Nh3 0-0-0+/-) 17...b6 18.Nh7 0-0-0 19.Nf6 (19.Bg5 Bg5 20.Ng5 Kb7+=) 19...Rh8 (19...Bf6 20.ef6 Kb7 21.Kh2=) 20.Bg5 Kb8 21.Qe3 (21.Qf3 a6+=) 21...Rc8 22.Rfb1 Ka8 23.Qf3 Rhd8 24.Nh7 Rc7 25.Nd2 Rdc8 26.Be7 Ne7 27.Rc1 Qa3 28.Nb3 Qb2 29.Rab1? (better is 29.Rcb1!? Qc2 30.Rf1+=) 29...Qa2-/+ 30.Qd1? (30.Nf6!?-/+) 30...Rc3-+ 31.Rc3 Rc3 1–0. Covaci,Stefan (2120) – Padurariu,Ciprian, ROM–ch sf Sovata, 2001. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.c3 d6 7.Ne2 Nf6 8.0-0 Qc7 9.f4 0-0 10.Ng3 a6 11.a4 Bd7 12.f5 Rac8 13.Bg5 Qd8 14.Qe2 e5 15.d5 Na5 16.c4 Nb3 17.Ra3 Nc5 18.Bc2 Nd5 19.Be7 (19.cd5 Bg5 Discovered attack; 19.ed5 Bg5 Discovered attack) 19...Ne7 20.f6 Ng6 21.fg7 Re8 (better is 21...Kg7!? 22.Nc3 Nf4+=) 22.Nh5= Re6 23.Qf2 Be8 24.Rh3 Nd7 25.Nc3 Qb6 26.Qb6 Nb6 27.Nf6 (better is 27.Nd5!? Nd7 28.Bd3+=) 27...Rf6= 28.Rf6 Rc4 29.Rd6 Nf4 (better is 29...Na4!? 30.Ba4 Ba4=) 30.Rg3+/- (30.Rb6 Nh3 31.gh3 Rc3 32.Rb7 Bc6-+) 30...Rc3 (30...Na4?? 31.Rd8 Ng6 32.Ba4+-) 31.Rc3 Ne2 32.Kf2 Nc3 33.Rd8 Nba4 34.Re8 Kg7 35.Re5 b5 36.Ke3 Nb2 37.Kd4 Ne2 38.Kc5 Kf6 39.Re8 Nc4 40.g3 Nc1 41.Ra8+- Na3?? 42.Ra6 (42.Ra6 Ke5 43.Ra3+-) 1–0. Riman,Vaclav (1975) – Stracanek,Jaroslav, CZE–chT2f, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.c3 d6 7.f4 Nf6 8.e5 Nd5 9.Ne2 a6 10.0-0 b5 11.a4 Qa5 12.Bd2 b4 13.c4 Nc7 14.Kh1 Qb6?? (14...Rb8!?=) 15.Qe1 (15.ed6 Bd6 16.c5 Bc5+-) 15...a5 (better is 15...d5!? 16.c5 Qb7=) 16.Qg3 0-0 (16...Nd4 17.Qg7 Rf8 18.ed6 Qd6 19.Qd4 (19.Nd4?! Qd8+/-) 19...Qd4 20.Nd4+-) 17.ed6 Bd6 18.c5 Bc5 19.dc5 Qc5 20.Rc1 Qd6 21.Be4 Nd5 22.Be3 Ne3 23.Qe3 (23.Rc6 Qd1 24.Ng1 Qd4-/+) 23...Bb7 24.Qb6 Rab8 25.Bc6 (25.Rc6 Bc6 26.Qc6 Qd1 27.Ng1 Rfc8-+) 25...Bc8?? (25...Rfc8 26.Qa5 Rc6 27.Rc6 Qc6-/+) 26.Qc5+- Qd3 (26...Qc5 27.Rc5 Ba6 28.Bb5 Bb5 29.Rb5 Rb5 30.ab5+-) 27.Bb5 Qe4 28.Nd2 Qg6 29.Ng3 Bb7 30.Nb3 Rbc8 31.Qg5 Rc3 32.Qg6 fg6 33.Rc3 bc3 34.Na5 Bd5 35.Nc6 Rf4 36.a5 Rf2 37.a6 Kh8 38.a7 h5 39.a8Q Kh7 40.Bf1 h4 41.Qe8 hg3 42.Bd3 Rf6 43.Ra4 Kh6 44.Qh8 (44.Qh8 Kg5 45.Qh4) 1–0. Loscos Vilafranca,Jose Miguel – Blanco,L, Zaragoza La Salle op, 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.c3 d6 7.f4 Nf6 8.Nf3 d5 9.e5 Ne4 10.0-0 f5 11.ef6 Nf6 12.a4 0-0 13.Ra2 Qc7 14.Qe1 Bd6 15.Ne5 Ne7 (15...Bd7 16.Ba3+=) 16.g4 (16.Na3 Bd7 17.Nb5 Bb5 18.ab5+=) 16...Be5? (better 16...Bd7=) 17.fe5+- (17.Qe5?! Qd8 18.g5 Ne8=) 17...Ne4 18.Rf8 Kf8 19.Ba3 Kg8 20.Be4 de4 21.Bd6 Qd7 (21...Qc4!? 22.Qe2 Qe2 23.Re2 Nd5+-) 22.Qe4+- Ng6 23.Qf3 Qc6 (23...Qe8 24.c4+-) 24.Qc6 bc6 25.Rb2 (25.Kf2 Nf4+-) 25...Ba6 26.Rb8 Rb8 27.Bb8 Bd3 28.Nd2 a6 29.Kf2 Bc2 30.a5 Nf4 31.c4 (31.h4 h6+-) 31...Kf7 32.Bd6 g5 33.Bc7 Ke7 34.Bd6 Kf7 35.Nf3 h6 36.Nd2 Ke8 37.Ke3 Ng2 (37...Kf7 38.Bb8+-) 38.Kf3+- Nf4 39.Ne4 Bb3 40.Bb4 Kf7 41.Nd6 (41.Bd2 Bd1 42.Kf2 Nd3 43.Ke3 Bc2+-) 41...Kg6+- 42.Bd2 Nd3 43.Bc3 (43.c5 Nb2+-) 43...Nf4 44.Ke3 (44.Kf2 Bd1+-) 44...Ng2 (44...Bd1!?+-) 45.Kd2+- Nf4 46.Bb2 Nh3 47.Kc3 Bd1 48.Ne4 Bg4 49.Nc5 Nf2 50.Na6 Nd1 51.Kb3 Be2 (51...Ne3+-) 52.Bc1 Nf2 53.Nc5 Nd1 (53...Nd3 54.a6 Nc1 55.Kc3 Bg4+-) 54.a6 1–0. Bullert,Wolfgang (1760) – Dymek,Hans_Peter, 2rd Berlin Germany, Senior Championship, 2010. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3 Nc6)

6.c3 Nf6 7.Ne2 0-0 8.0-0 d5 9.f3 e5 10.Be3 ed4 11.cd4 Nb4 12.e5 Nd7 (worse is 12...Nd3 13.ef6 (13.Qd3?! Nd7=) 13...Nb2 14.Qc2 (worse is 14.fe7 Qe7 15.Qc1 Nc4+=) 14...Bf6 15.Qb2+-) 13.Nbc3 Nd3 14.Qd3 Nb6 15.Nf4 g6 16.g4 Be6 17.Rab1 Rc8 18.Rb3 Rc6 19.Qb5 Qd7 20.Na4 Nc4 21.Nc5 Bc5 22.dc5 Ne3 23.Re3 Rfc8 24.Nd3 Qe7 25.Rf2 b6 26.cb6 Rb6 27.Qa4 Rc4 28.Qa5 Qc7 29.Kg2 Rc3 30.Qa4 Rc4 31.Qd1 Qb7 32.Ree2 d4 33.Rc2 Rc2 34.Qc2 Bg4 35.Qc4 Be6 36.Qd4 Qe7 37.h3 Rb1 38.h4 Rd1 39.Qe4 Bf5 40.Qa8?? Kg7-+ 41.Nb2 Rd8 42.Qc6 Qe5 43.Nc4 Qe7 44.Kg3 Rc8 45.Qd6-/+ Qe6 46.Qd4 Kg8 47.Ne3 a5 48.Nd5 Rc6 49.f4 Rd6 50.Rd2 Qe1 51.Qf2 Qf2 52.Kf2 ½–½. Guca,Krzysztof (1870) – Dixa,Stanislaw, XVIII MFSz Poznan Poland, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.c3 Nf6 7.Ne2 b6 8.Ng3 Bb7 9.0-0 d6 (9...0-0 10.Bf4=) 10.f4 0-0 11.e5 (11.Nd2 Qd7=) 11...Nd5=+ 12.Kh1 f6 (12...a6 13.Ne4=+) 13.Qh5 (better 13.ef6!? Bf6 14.Qe2=) 13...f5-/+ 14.ed6 (14.Ne2 de5 15.fe5 Qc8-/+) 14...Bd6 15.Qe2 (15.Ne2!?-/+) 15...Rf6-+ 16.Qe1 Qc7 (16...Rh6 17.Ne2-+) 17.Ne2 (better 17.Na3!? Be7 18.Qd2-/+) 17...Na5-+ 18.Na3 (18.Rf3-+) 18...a6 ½–½. Schultz_Pedersen,Jesper (2120) – Saltvedt,Martin (1935), Xtracon Chess Open, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3 Nc6)

5.Bd3 d6

6.Ne2 Nc6 7.0-0 Nf6 8.c3 a6 9.Ng3 b5 10.f4 Qb6 11.Be3 e5 12.Be2 b4 13.Qd3 bc3? (13...ed4 14.cd4 d5 15.Bf3 de4 16.Ne4+=) 14.d5 (better is 14.de5 Qb2 15.ef6 Bf6 16.e5 (16.Qd6 Nd8 17.Nh5 c2+-) 16...de5 17.Nc3 ef4 18.Nd5 fg3 19.Nc7 Kf8 20.Na8 gh2 21.Kh1+-) 14...Nd4 15.Nc3 (worse is 15.Qc3 Ne4 16.Bd4 Ng3 17.Bb6 Ne2 18.Kf2 Nc3 19.Nc3 Rb8-/+) 15...Ne2 16.Nge2 Qd8 17.Rad1 Ng4 18.fe5 Ne5 19.Qd2 0-0 20.Nd4 Bd7 21.Nf3 Bg4 1–0. Carrasco Sagredo,M (2075) – Mayor Martinez,JJ, Valencia ONCE op 9th, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Ne2 e5 7.c3 Nf6 8.0-0 0-0 9.f4 ef4 10.Nf4 h6 11.h3 b5 12.Nh5 Nbd7 13.Bb5 Ne4? (better is 13...Rb8 14.Bd3 d5+/-) 14.Bc6+- Nb6 15.Be4 d5 16.Bc2 f5 17.Nf4 Qe8 18.Re1 Qf7 19.Qh5 Qh5 20.Nh5 Bh4 21.g3 Bg3 (21...Bg5 22.Ba3 Rf7 23.h4+-) 22.Ng3 f4 23.Nh5 f3 24.Kf2 Bh3 25.Ba3 Rfe8 26.Nd2 Re2 27.Re2 fe2 28.Ng3 Bg4 29.Ne2 h5 30.Re1 Rc8 31.Bb4 Kf7 32.Nf3 Kf6 33.Nf4 g5 34.Be7 Kg7 35.Ne2 Bf3 36.Kf3 g4 37.Kg3 Re8 38.Nf4 Rc8 39.Bc5 Kh6 40.Re6 Kg5 41.Rg6 1–0. Kudelka,Janusz (2070) – Grajczak,Adrian (1995), DMR KPZSzach Poland, 2008. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Ne2 Nf6 7.0-0 b6 8.f4 (8.Nbc3 Bb7+=) 8...Bb7 (8...Nc6 9.c4+=) 9.Nd2 (9.e5 Ne4+=) 9...Nc6 10.c3 (10.e5 Nd5 11.Ne4 de5 12.fe5 0-0+=) 10...d5 (10...0-0 11.e5 de5 12.fe5 Ne5 13.de5 Qd3 14.ef6 Bf6 15.Nf3=) 11.e5+= Nd7 (11...Ng4 12.Nf3 Nh6 13.Ng5+=) 12.f5+- Nf8 (12...ef5 13.Bf5 0-0 14.Nf4+-) 13.Nf4 (13.Ng3 Bg5+-) 13...Qd7? (13...ef5 14.Bf5 Ng6 15.e6 Nf4 16.Rf4 fe6 17.Be6+-) 14.fe6 (better 14.Qh5!? g6 15.fg6 fg6 16.Bg6 Ng6 17.Ng6 0-0-0 18.Nh8 Rh8+-) 14...Ne6 15.Ne6 fe6 16.Qh5 Kd8 17.Rf7 (17.Nf3 Kc7+-) 17...Qe8+- 18.Bb2 (18.Bh7 Rh7 19.Qg6 Rh6 20.Qg7 Rh8-+) 18...g6 19.Qf3 Kc7 (19...Kc8 20.Rf1 Nd8 21.Rg7+-) 20.Rf1 (20.Ba3 Rf8 21.Bd6 Kd7+-) 20...Nd8? (better 20...Rd8!?+-) 21.Rg7+- Kb8 22.Qh3 Bg5 (22...Bc6 23.Rh7 Rh7 24.Qh7+-) 23.Ba3 a5 (23...a6 24.Nf3 Be3 25.Kh1+-) 24.Nb1 (better 24.Bd6 Ka7 25.Be2+-) 24...h6 (24...Ra7 25.Qg3 Bh6 26.Bd6 Ka8+-) 25.Bd6 Ka7 26.Na3 Rc8 (26...Rg8 27.Nb5 Qb5 28.Rb7 (28.Rg8?! Qb2+-) 28...Kb7 29.Bb5+-) 27.Bb5 Rc6 (27...Nc6 28.Rff7 Qf7 29.Rf7+-) 28.Qd3 h5 (28...Bh4 29.Ba6 Rd6 30.Bb7 Nb7 31.Nb5 Kb8 32.Nd6 Nd6 33.Qa6+-) 29.Bc6 Qc6 30.Nb5 Ka8 31.Nc7 Ka7 (31...Kb8 32.Ne6 Qd6 33.ed6 Ne6 34.Rg6 Nf4+-) 32.Qa6!! Kb8 (32...Ba6 33.Nb5) 33.Nb5 (33.Nb5 Qd6 34.Qa7 Kc8 35.Nd6) 1–0. Oberholzer,Francois (2030) – Simutowe,Musatwe (2195), PSS Prestige Rapid, 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3 d6)

6.Ne2 Nf6 7.0-0 Nbd7 8.a4 b6. Menassa,Elias (2120) – Fernandez,William (1610), Semifinal, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3 d6)

6.Ne2 Nf6 7.0-0 Nbd7 8.c3 b6 9.Ng3 Qc7 10.Be3 Bb7 11.f4 g6 12.Qc2 Rc8 13.a4 a6 14.Bc1 h5 15.Bb2 Qb8 16.Qe2 h4 17.Nh1 Qa8 18.Nf2 d5 19.e5 Ne4 20.Ng4 h3 21.g3 Rh5 22.Ne3 Nf8 23.Rc1 Rc7 24.Be4 de4 25.c4 Rh7 26.Nc3 Nd7 27.d5 Bc5 28.Rd1 Kf8? (28...Be3!? 29.Qe3 Rc4 30.Ne4 Rc2 31.de6 fe6 32.Nd6 Kf8+/-) 29.Ba3 Kg8 30.Bc5 Nc5 31.Ng4 Kg7 32.Nf6 Rh8 33.Nce4 Ne4 34.Qe4 (34.Ne4?! ed5 35.Nd6 dc4+=) 34...Rd8 35.Qd4 ed5? (better is 35...Rc5 36.Ne4 Bd5 37.Nc5 Bc4 38.Ne6 Be6+/-) 36.e6 (36.e6 fe6 37.Ne8 Kf7 38.Nc7+-; 36.cd5 Bd5 37.Nd5 Rc5 38.e6 Kh6 39.ef7 Rdd5+/-) 1–0. Macicek,Jakub (2090) – Stastny,Radek (1870), CZE–ch U16 Czechia, 2004. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Nf3 Nf6 7.0-0 a6 8.Nbd2 Qc7 9.c4 Nbd7 10.Bb2 h5 11.e5 de5 12.de5 Ng4 13.Qe2 Nc5 14.Ne4 Bd7 15.Bc2 Bc6 16.Bd4 Be4 17.Be4 0-0 18.Bc2 Rad8 19.h3 Nh6 20.Rab1 f5? (better is 20...b6+=) 21.ef6!+- Bf6 (21...Bf6 22.Bc5 Combination; 21...gf6 22.Bc5 Combination) 22.Bc5 Qc5 23.Qe6 Kh8? (23...Nf7 24.Rb7 Rde8 25.Qa6 Nd6+-) 24.Qe4 (24.Rb7?! Rfe8 25.Qa6 Ra8+-) 24...Kg8 (24...Qf5 25.Qf5 Nf5 26.Bf5 b5 27.cb5 Rd5+-) 25.Rb7 (better is 25.Qh7 Kf7 26.Rb7 Be7 27.Re1+-) 25...Rf7 26.Qe6 Qd6 27.Qd6 Rd6 28.Rb8 Rf8 29.Rfb1 g5 30.Be4 g4 31.c5 Rdd8 32.Rd8 Rd8 33.c6 Kg7 34.c7 Rc8 35.Rc1 Bb2 36.Rc2 gf3 37.Bb7 Re8 38.c8Q Re1 39.Kh2 Be5 40.g3 h4 41.Qd7 Nf7 42.Qg4 (42.Qg4 Kf6 43.Qh4 Kg6 44.Qg4 Kf6 45.Bd5 Bg3 46.fg3+-) 1–0. Abelleyro,Fernando – Rojas,Ruben, Villa Ballester op, 1993. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Nf3 Nf6 7.c3 Nbd7 8.Qc2 e5 9.Nbd2 a6 10.a4 0-0 11.Ba3 Re8 12.0-0 b6 13.Nh4 (13.Bc4 Bb7+=) 13...g6 (better 13...d5 14.Be7 Qe7 15.ed5 ed4+=) 14.f4 (better 14.Nhf3+=) 14...Ng4-/+ 15.Nhf3 Ne3 16.Qb3 Nf1 17.Rf1 ef4 18.Bc4 Rf8 19.Bd5 Rb8 20.e5 (20.Bb4 Nf6 21.Bc4 Bb7-+) 20...de5-+ 21.Be7 Qe7 22.Re1 Bb7 23.Ne4 (23.Bb7 Rb7 24.Ne5 Ne5 25.Re5 Qc7-+) 23...Bd5 24.Qd5 Nf6 (24...Rfd8!? 25.Ne5 Ne5 26.Qe5 Qe5 27.de5-+) 25.Nf6 Qf6 26.Ne5 Rfe8 27.Rd1 Qe6 28.Qf3 f6 29.Ng4? (29.Nc6 Rbc8 30.d5-+) 29...h5 30.d5 (30.Nf6 Qf6 31.Qd3 Qe6-+) 30…hg4 (30...hg4 31.Qf4 Qe3 32.Qe3 Re3-+) 0-1. Pala,Ali Arhan - Yenicirak,Gokdeniz Ege (1635), TCh-TUR Club, 2019. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3)

6.f4 e5 7.d5 ef4 8.Bf4 Bf6 (better is 8...Bh4!? 9.Bg3 Bg3 10.hg3 Nf6+=) 9.c3+= Ne7 10.Ne2 Ng6 11.0-0 Nd7 12.Kh1 Nf4 13.Nf4 g6 14.Qc2 0-0 15.Nd2 Ne5 16.Nc4 Bg7 17.Ne5 Be5 18.Rac1 Bd7 19.c4 Rc8 20.Qf2 Rc5 21.Qe3 Ra5 22.Bb1 Qb6 23.Qb6 ab6 24.Nd3 Bd4 25.Rfe1 f6 26.Re2 Rc8 27.Nf4? (27.Ree1 Ra4-/+) 27...Kf7 (27...b5 28.c5-+) 28.Bd3 Ra3 29.Bb1 b5 30.Ne6 Be6 31.de6 Ke6 32.Rec2 b4 33.Rd1 Bc3 34.Re2 Rc4 35.Bc2 Rd4 36.Rd4 Bd4 37.Bb3 Ke5 38.g3 Ra5 39.Kg2 Rc5 40.Bg8 h6 41.Bf7 g5 42.Bd5 b6 43.g4 Rc3 44.Rd2 Rc5 45.Bb7 d5?? 46.Bd5 Rd5 47.ed5+= Kd5 48.Kf3 Kc4 49.Ke4 Bc3 50.Rd6 Kb5 51.Rd8 b3 52.ab3 Kb4 53.Kf5 Kb3 54.Rb8 Bd4 55.Rd8 Kc4 56.Ke4 Be5 57.Rc8 Kb4 58.Kd3 Kb3 59.h3 b5 60.Rc6 b4 61.Rb6 Bc3 62.Ra6 Be1? 63.Rb6 ½–½. Bove,Alessandro (2125) – Fossati,Remigio (2200), ITA–ch U16 Arvier, 2003. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.f4 Nf6 7.Nf3 Nc6 8.0-0 Qb6 (8...0-0 9.Nbd2=) 9.c3+= 0-0 10.a4 (10.e5 Nd5+=) 10...Bd7= 11.Na3 Na5 (11...d5 12.e5 Ng4 13.Rb1+-) 12.Rb1 (12.e5 Nd5 13.c4 Nb4+=) 12...Qc7 (12...Qc6 13.e5 de5 14.de5 Nd5=) 13.Bd2 (13.e5!? Nd5 14.Qc2 Qc3 15.Bh7 Kh8 16.Nb5 Bb5 17.Rb5=+) 13...d5=+ 14.ed5? (14.e5 Ne4 15.Nb5 Qc6=) 14...Nd5?? (14...Ba3!? 15.de6 Be6 16.Qc2-+) 15.Ne5? (better 15.Nb5 Qc8 16.Ng5=) 15...Rfd8?? (better 15...Ba3 16.c4 Nf6 17.Nd7 Nd7 (17...Qd7?! 18.Ba5 Qd4 19.Kh1=) 18.Ba5 Qa5 19.Rb7 Nf6-+) 16.Nd7?? (better 16.Bh7 Kf8 17.Qh5+- (17.Nd7?! Rd7 18.Nb5 Qc6+-)) 16...Rd7 (16...Qd7 17.Nc4 Nc4 18.Bc4=) 17.Nb5 Qc8 (17...Qc6 18.f5 a6 19.fe6 Qe6+-) 18.Qh5?? White prepares the advance f5 (18.c4 Nc4 19.Rc1+=) 18...g6 (better 18...Nf6 19.Qe5 Nc6-/+) 19.Qh3?? (better 19.Qe2 a6 20.c4 ab5 21.cd5 Rd5 22.Rfc1=+) 19...a6-+ 20.f5 ef5 (20...ab5 21.fe6 fe6 22.Qe6 Kh8 23.Qe5 Bf6 24.Rf6 Nf6 25.Qf6 Kg8 26.Rb5+-) 21.c4? (21.Rf5 ab5 22.Rf7-/+) 21...Nc4 (21...ab5?! 22.cd5 ba4 23.Rf5-/+) 22.Rbc1 Ndb6 (22...ab5 23.ab5 Rc7 24.Bc4 Rc4 25.Qb3 Rc1 26.Rc1-+) 23.Na3?? (better 23.a5 ab5 24.ab6 Rd4 25.Bc3-+) 23...Ba3 (23...Nd2 24.Rc8 Rc8 25.Rd1 Rd4 26.Nc2-+; 23...Na3?! 24.Rc8 Rc8 25.Bf5 gf5 26.Qf5+=) 24.Rc2 (24.Rc4 Nc4 25.Bc4 Rd4 26.Bf7 Kf7-+) 24...Rd4 25.Bc3 Rg4 26.Be2 (26.Bf6 Qc6 27.Qf3 Qf3 28.Rf3 Bc5 29.Kh1 Bd4-+) 26...Re4 (26...Bc5 27.Kh1 Ne3 28.Bg4 fg4 29.Qh4-+) 27.Qh6 (27.Bd3 Bc5 28.Kh1 Re3-+) 27...Bf8 28.Qh3 (28.Qg5 Nd5 29.Bf3 Qc5 30.Kh1 Nce3 31.Be4 fe4-+) 28...Qe6 (better 28...Ne3 29.Rcc1 Nf1 30.Kf1 Re2 31.Qd3-+) 29.Bf3 Re3 (29...Bc5!? 30.Kh1 Ne3 31.Be4 Qe4 32.Rcc1 Nf1 33.Rf1 Na4 34.Bf6-+) 30.Bd4 Re1 (30...Qd7 31.Rd1 Qa4 32.Rcc1-+) 31.Bf2 (31.Qh4 Rf1 32.Kf1 Na4-+) 31...Rf1 32.Kf1 Ne3 33.Be3 Qe3 34.Re2 (34.Bb7 Qd4 35.Qc3 Qd1 36.Kf2 Na4-+) 34...Qc1 (34...Qd4!? 35.g4 Rc8 36.Re1-+) 35.Re1 Qc7 (35...Qc4 36.Kg1 Na4 37.g3-+) 36.Kg1 (36.Qh4 a5-+) 36...Na4 37.Bd5 (37.Qh4 Nc5 38.Kh1-+) 37...Qc5 (37...Qc5 38.Kh1 Qd5-+) 0–1. Hilbert,Stephan J – Joubert,Hennie, FICGS, 2015. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Bd3 d6)

5.Nf3 d6

6.Bb5 Bd7 7.a4 Nf6 8.e5 Nd5 9.Ba3 Qa5 10.Qd2 Qc7 11.c4 Bb5 12.ab5 (better is 12.cd5!? Bc4 13.de6 Be6 14.d5+=) 12...Qc4+= 13.ed6 Bd8 14.Ne5 Nd7?? (better is 14...Qb5 15.Bc5 f6-/+) 15.Nc4+- 1–0. Mose,Greg – Rosebrook,G, East Lansing–ch MI op–B, 1991. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.c3 Nf6 7.Bd3 Qc7 8.Nfd2 a6 9.g4 e5 10.g5 Nfd7 11.Nb3 b5 12.f4 f6 13.f5 fg5 14.Qh5 Kf8 15.Bg5 Bg5 16.Qg5 Nf6 17.Rg1 Ra7 18.N1d2 Nc6 (18...Qc3? 19.Rc1 ed4 20.Rc3 dc3 21.Nb1+-) 19.Rc1 Na5 20.Ke2 (20.c4 Nb3 21.Nb3 bc4 22.Rc4 Qd8+/-) 20...Nb3 21.ab3 Rg8 22.c4 b4 23.d5 Qc5 24.Nf3 Bd7 25.Rg3 Be8 26.Qe3 Nd7 27.Ng5 Qe3 28.Ke3 Nc5 29.Nh7 Ke7 30.Rg2 Nb3 31.Rb1 Ba4? (31...Nc5 32.Rb4 a5+-) 32.Bc2 Nc5 33.Ba4 Na4 34.Rb4 Nc5 35.h4 a5 36.Rb1 Kf7 37.Rg6 Rh8 (37...Rd8+-) 38.Ng5 Kf8 (38...Ke7 39.Rg7 Kf8 40.Ra7 Na6 41.Ra8 Kg7 42.Rb7 Nc7 43.Rc7 Kf6 44.Rf7) 39.Rb8 Ke7 40.Rh8 (40.Rh8 Ne6 41.Ne6 Ra6 42.Rg7 Kf6 43.Rf8; 40.f6 gf6 41.Rg7) 1–0. Kubec,Jiri (1830) – Hainis,Ladislav, Janske Lazne op–B, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.Bd3 Nc6 7.c3 Qc7 8.0-0 Nf6 9.Re1 Bd7 10.Bg5 0-0-0 11.e5 de5 12.de5 Nd5 13.c4 Nb6 (better is 13...Ndb4 14.Be7 Ne7=) 14.a4?? (14.Nc3 f6 15.Nb5 Qb8+/-) 14...a5?? (better is 14...Bg5 15.c5 Nd5 16.Ng5 Ne5-/+) 15.Nc3+/- f6 16.Nb5 Qb8 17.ef6 gf6 18.Be3 Na8 19.Qc1 Be8 20.Be4 e5 21.Rb1 Bb4 22.Rd1 Bg6 23.Bg6 hg6 24.c5 e4? 25.Rd8 Kd8+/- 26.Bf4 Ne5?? 27.Ne5 fe5 28.Qd1 Ke7 29.Bg5 Ke6 30.Qg4 Kd5 31.Rd1 Kc5 32.Be3 Kc4 33.Qe4 Kb3 34.Qd3 (34.Qd3 Ka4 35.Ra1 Ba3 36.Qc4) 1–0. Jablan,S – Schmidt,R, World op Philadelphia, 1995. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.Bd3 Nd7 7.0-0 a6 8.Qe2=.

6.Bd3 Nd7 7.0-0 b6 8.Bb2 (8.Ne1 Nf8=) 8...Bb7 9.Nbd2 Ngf6 10.c4 (10.h3 Qc8=) 10...0-0 (10...Qc7 11.a4=) 11.Re1 e5 (11...Rc8 12.Qa4 Bc6 13.Qc2= (13.Qa7?? Ra8 14.Qa8 Ba8-+)) 12.Nb3 (12.Bc2 ed4 13.Qe2 Nh5=) 12...ed4 13.Bd4 Nc5 (13...Qc7 14.Nfd2=) 14.Nc5 dc5 15.Bb2 (15.Bf6 Bf6 (worse is 15...gf6 16.Re3 f5 17.e5+/-) 16.e5 Be7=) 15...Qc7 (15...Nh5 16.Ne5 Nf4 17.Qf3 Ng2 18.Kg2+=) 16.e5 Nd7 (16...Nh5 17.Re3=) 17.Qe2 f6?? (better is 17...Rad8+=) 18.e6 (18.ef6 Nf6 19.Qe7 Qe7 20.Re7 Bf3 21.gf3 Rf7 22.Bf6 gf6 23.Rf7 Kf7 24.Bh7 Rd8+-) 18...Bf3 (18...Nb8 19.Ng5!! f5 20.Qh5 Bg5 21.Qg5+-) 19.Qf3 (19.gf3?! Ne5=) 19...Ne5 20.Be5 fe5 21.Qh5 g6 22.Bg6 hg6 23.Qg6 Kh8 24.Re3 (better is 24.Qh5 secures the win 24...Kg8 25.Qg4 Bg5 26.Qg5 Qg7 27.Re5 (worse is 27.Qe5 Qe5 28.Re5 Rf4+-) 27...Qg5 28.Rg5 Kh7 29.Re1+-) 24...Bh4 25.Rh3 Qh7 26.Qh7 Kh7 27.Rh4 Kg6 28.Re1 Rfe8? (28...Rf4 29.Rf4 ef4 30.h4+-) 29.Rhe4 Re6+/- 30.Re5 Re5 31.Re5 Rd8 32.Rd5 Re8 33.Kf1 Re4 34.Rd7 Rc4 35.Ra7 Rc2 36.a4 c4 37.Rb7 Rc1 38.Ke2 Rc2 39.Ke3 Rb2 40.a5 b5?? 41.a6+- c3 42.a7 Ra2 43.Rb6 Kg7 44.Rb5 Ra7 45.Kd3 Ra2 46.Ke3 c2? 47.Rc5+- Ra3 48.Kd2 Ra1 49.Rc2 Rh1 50.Ke3 Rh2 51.g4 Rg2 52.Kf4 Kg6 53.Rc6 Kf7 54.f3 Ra2 55.Kg5 Ra5 56.Kh4 Ra4 57.Kg3 Ra3 58.g5 Kg7 59.Kg4 Ra4 60.f4 1–0. Santos,Roberto Carlos (1925) – Nunes,Saulo (1825), Brazil Imperatriz op, 2002. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.Bd3 Nd7 7.0-0 Qc7 8.a4 Ngf6 9.Ba3 e5 10.Qd2 0-0 11.Nc3 a6 12.Rfe1 ed4 13.Nd4 Ne5 14.f4 Qb6 15.Nce2 Nd3 16.cd3 Re8 17.a5 Qa7 18.h3 Bd7 (18...b5 19.ab6 Qb6 20.Rec1+=) 19.Rab1+= Rab8 20.Rb6 Exerts pressure on the isolated pawn. White terminates the opponent with stron 20...Bd8 21.Rb2 Bc7 22.Rc1 (22.Kh2 b6+=) 22...b6 23.Rbc2 Rbc8 (23...Rb7 24.Nc6 Bc6 25.Rc6 ba5 26.Kh2+=) 24.Nc6+= Bc6 (24...Qb7 25.Qb4+=) 25.Rc6+- ba5 26.Kh2 Red8 (26...Re6 27.Bd6! Ne8 28.e5+-) 27.Bd6!+- Ne8 (27...Bd6 Exploits the pin 28.Rc8) 28.e5 (28.Bc7 Rc7 29.Qa5 Rcd7+-) 28...Qb7 29.Qc2 Rd7 30.Ng3 a4 (30...Kh8+-) 31.Qa4 (31.Qa4 Rcd8 32.Ne4 (32.Qa6 Qa6 33.Ra6 Nd6 34.ed6 Bd6+-) 32...Bd6 A) 33.Rd6?! Nd6 (worse 33...Rd6 34.Nd6 Nd6 35.ed6+-) 34.Nd6 Qa7=; B) 33.ed6+-; better 31.Nf5!? Qb3 32.Ne7 (32.Bc7?! Qc2 33.R1c2 Rcc7+-) 32...Re7 A) 33.Rc7?? Rec7 (33...Nc7? 34.Be7 f6 35.Bd6+-; 33...Rcc7?! 34.Qb3 ab3 35.Rb1-+) 34.Bc7 Rc7-+ (34...Nc7?! 35.Qc6-+); B) 33.Be7+-) 1–0. Gareev,T (2605) – Harshal,S (2055), 16th Delhi Open, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.Bd3 Nd7 7.0-0 Qc7 8.Bb2 Nh6 (8...Ngf6 9.Nc3+-) 9.Nbd2 (9.Nc3 0-0+-) 9...f6 (9...0-0 10.a4+-) 10.Re1 (10.c3 Nb8+-) 10...Nf7 (10...0-0 11.c3+-) 11.Nc4 (11.c3!? 0-0+-) 11...Nb6+- 12.Nb6 Qb6 13.Ba3 (13.Qd2 0-0+- (13...Qb2? 14.Reb1 Qa1 15.Bb5 Kf8 16.Ra1+-)) 13...Qc7 14.c4 (14.Qb1 0-0+-) 14...0-0+= 15.Qc2 (15.Rc1 b6+=) 15...e5 16.d5 (16.Bb2 Bg4+=) 16...g6 (16...Bg4 17.Re3=) 17.Rac1+= b6 18.Bb4 Nd8 19.Qd2 (19.h4 Nb7=) 19...Bd7 (19...Nb7 20.Bc2=) 20.Ra1 (20.h4 Nb7+=) 20...Rf7 21.a4 a5 22.Bc3 Rg7 23.Qc2 Nb7 24.Qb2 Nc5 Attacks the isolani on a4 25.Bc2 Ra6 26.Nd2 g5 (26...Rf7!?=) 27.Nf1+- Qc8 28.Ng3 Bd8 (28...Rg6 29.Nf5 Bf8 30.Qb1+-) 29.Bd2 (29.Nf5 Bf5 30.ef5 Ra8+-) 29...Rf7 (29...Rg6 30.Qb1+-) 30.Be3 (30.Nf5 Bf5 31.ef5 Raa7+-) 30...Ra8 31.Qa3 Qa6 32.Bc5 (32.Qc3!?+-) 32...bc5 33.Reb1 Bc7 (33...Qc4? 34.Bd3 Qd4 35.Ne2 Qa4 36.Qa4 Ba4 37.Ra4+-) 34.Qc3 Rff8 35.Nh5 (35.Nf5 Kh8+-) 35...Bg4 (35...Rab8 36.Rb5 Qa8+-) 36.Ng3 Bd7 37.Nf5 Bf5 (37...Rab8!? 38.Rb5 Kh8+-) 38.ef5 Rab8 39.Rb5 Rb5 (39...Kg7 40.Be4+-) 40.ab5+- Qc8 41.Qh3 Bb6 42.Qh6 Qc7 43.h4 (43.Ra3 Qg7 44.Qh5 Qf7+-) 43...gh4 (43...Qg7!? 44.Qh5 gh4 45.Qh4 Qg5+-) 44.Ra3 Rf7 45.Rh3 Qe7 46.Qh4 Rg7 47.Re3 Bd8 48.Kf1 (48.f4 Qd7+-) 48...Kf8 49.Bd1 (49.f4 Rg8+-) 49...Kg8 (49...Rg5 50.f4 Rf5 51.g3+-) 50.Bh5 (50.f4 Qd7 51.Bc2 Kf8+-) 50...Bb6 (50...Qd7 51.Qe4+-) 51.f4 Bd8 (51...Qd7 52.Qf6 Bd8 53.Qe6 Qe6 54.de6 (54.fe6 ef4 55.Bf7 Kf8+-) 54...ef4 55.Rd3+-) 52.Rh3 1–0. Brkic,Toma (2065) – Taylor,Robert Graham (1920), Paracin SER, Central Serbia Championshi, 2016. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

6.Bd3 Nd7 7.a4 Nf8=.

6.Bd3 Nf6

7.0-0 0-0 8.c4 Nbd7 9.Bb2 b6 10.Qc2 h6 11.Nbd2 a5 12.a4 Bb7 13.Rfe1 Re8 14.Rac1 Qc7 15.Qb3 Bc6 16.d5 (better is 16.Rb1+=) 16...Nc5-/+17.Qa3 Ba4 18.Bd4 Nd3 19.Qd3 e5 20.Be3 Rab8 21.Rb1 Rb7 22.Rb2 Reb8 23.Reb1 Bd8 24.Qa3 Be8 25.Nh4 Ng4 26.Nf5 Be7?? (better is 26...Ne3!? 27.Ne3 Bd7+=) 27.Bb6 Rb6 28.Ne7 Qe7?? (better is 28...Kh7 29.Rb6 Rb6 30.Rb6 Qb6=) 29.Rb6+- Rb6 30.Rb6 Qh4 31.Qg3 Qd8 32.Ra6 Nf6 33.h3 a4 34.Qa3 Qd7 35.Rd6 Qe7 36.c5 Bb5 37.Qb4 Ne8 38.Rb6 Bd3 39.Qa4 f5 40.Re6 Qg5 41.Re8 Kh7 42.Qb4 fe4 43.Qc3 Qh5 44.Qe5 Qd1 45.Kh2 (45.Kh2 Qg1 46.Kg1 Bc4 47.Qe4 g6 48.Qe7) 1–0. Steinfeld,Jakub – Sebek,Pavel, Jirasek Memorial op–B, 2009. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

7.0-0 0-0 8.Nbd2 Nbd7 9.Re1 g6 10.c4 Nh5 11.Nf1 Re8 12.Be2 b6 13.g4 Ng7 14.Ng3 Bb7 15.g5 d5 16.ed5 ed5 17.h4 f6 18.Qb3 dc4 19.Bc4 Kh8 20.gf6 Bf6 21.Re8 Ne8 22.Ng5 Nd6 23.Bf4 Bg5 24.Bg5 Qc8?? 25.Bd5 ½–½. Koentges,Markus – Boonen,P (2055), Sparkassen Open, Nettetal GER, 2010. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

7.0-0 Nc6 8.Qe2 Nb4 9.Bb5 Bd7 10.c3 Nc6 11.Rd1 a6 12.Bd3 e5 13.de5 (13.Be3 Ng4+=) 13...de5= 14.Na3 Qc7 15.Nc4 Be6 16.Ne3 0-0 17.Ng5 Nd8 18.Nd5 Bd5 19.ed5 h6 (worse is 19...Qc3 20.Bb2 Qc5 21.Qe5 Qf2 22.Kh1+-) 20.Nf3 Nd5 (worse is 20...Qc3 21.Bb2 (worse is 21.Qe5 Qe5 22.Ne5 Nd5+=) 21...Qc5 22.Qe5+/-) 21.Qe4 (21.Ne5 Nc3 22.Qh5 Bd6-/+) 21...Nf6 22.Qe5 Rc8 23.Qc7 Rc7 24.Bb2 Ne6 25.c4 Nc5 26.Bf1 Nfe4 27.Be5 Rd7 28.Rd7 Nd7 29.Bd4 Bf6 30.Rb1 Bd4 31.Nd4 Ndc5 32.Re1 Rd8 33.Nb3 Nb3 34.Re4 Nd2 35.Re7= Rc8 36.Bd3 b5 37.Bf5= Rd8 38.cb5 ab5 39.Rd7 Re8 40.f3+= Nc4 41.Rc7 Nd6 42.Bd3 g6 43.Rd7 Nc4 44.Be4 Kg7 45.Bd5 Rf8 46.Rb7 Nd6 47.Rb6 Rd8 48.Kf2 Kf6 49.g3 Ke7 50.Bc6= Rc8 51.a3 Nc4 52.Rb7 Kf6 53.Bd7 Rd8 54.Bb5 Na3 55.Be2 Rc8 56.Rb4 Rc3 57.Rb6 ½–½. Beltran,Horacio – Valverde,Ezequiel, Pan American–ch U18, 2000. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

7.0-0 Nbd7 8.c4 Qc7 9.Nc3 a6 10.Ba3 b5 11.Qb3 bc4 12.Qc4 Qc4 13.Bc4 Nb6 14.Bd3 Bd7 15.Rab1 Nc8 16.Rb7 Kd8 17.e5 Bc6 18.Re7 Ke7 19.ef6 gf6 20.d5! Bd7 (20...Bd5 21.Nd5 Double attack; 20...ed5 21.Nd4) 21.Nd4 f5 22.Re1 Kf6 23.f4 Rg8 24.Nf3 h6 25.Rb1 Ra7 26.Rb8 Rg4 27.Ne2 Ke7 28.Ne5 Rg8 29.Nd4 (29.Nd7?! Kd7 30.Nd4 Kc7+-) 29...Rc7 30.Nd7 Rc3 (30...Kd7 31.Ba6 Ra7 32.Bc4+-) 31.Ba6 Kd7 (31...Ra3 32.Rb7 Ra6 33.Nc5 Kf6 34.Na6 Rg4+-) 32.Rb7 Ke8 33.de6 fe6 (33...Rg6 34.Bb5 Kf8+-) 34.Bb5 (34.Bb5 Rc6 35.Bc6 Kd8 36.Ne6) 1–0. Karaev,Seit (1980) – Shishkin,Alexander (2085), Anapa op, 2006. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

7.c4 a6 8.0-0 0-0 9.Nc3 Nc6 10.e5 (better is 10.Rb1!?+=) 10...de5+= 11.de5 Nd7 12.Qe2 Qc7 Increases the pressure on e5 (12...Qa5 13.Bb2+=) 13.Re1 Bb4?? (better is 13...Nc5=) 14.Bh7+- Kh8 15.Bd2?? (better is 15.Bc2!? Kg8 16.a3+-) 15...Nde5 (15...g6!? 16.Qe3 Nde5+/- (16...Kh7?? 17.Qh6 Kg8 18.Ng5 Nf6 19.Nce4 Qe5 20.Nf6 Qf6 21.Qh7)) 16.Ne5+= Qe5 17.Qg4 Qf6?? 18.Qh5+- Rd8 19.Bg5 Qc3 1–0. Quintero Perdomo,A (1960) – De Castro De Leon,J (1610), San Cristobal ESP, 1st Verano Open, 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

7.e5 de5 8.Ne5 0-0 9.0-0 Qc7 10.c4 Nc6 11.Nc6 Qc6 12.Ba3 Ba3 13.Na3 b6 14.Nc2 Bb7 15.f3 Rfd8 16.Qe2 Rac8 17.Rfd1 Ba6 18.Nb4 Qa4 19.Na6 Qa6 20.Rac1 Qa3 21.Bb1? (better is 21.Qe3 g6 22.Rc2=) 21...Rd4!-/+ 22.Rd4 Qc1 23.Rd1 Qf4 (23...Qc4?? 24.Qc4 Rf8 25.Qa6+-) 24.g3 Qg5 (24...Qc4?? 25.Qc4 Rf8 26.Qa6+-) 25.Kg2 g6 26.Rd4 Nh5 27.Bd3 e5 28.Rg4 Qf6 29.Re4 Rc5 30.h4? (better is 30.Qd2!?-/+) 30...Qd6-+ 31.Re3 f5 32.Bc2 f4 (better is 32...Ng3!? 33.Qd1 Qd1 34.Bd1-+) 33.Rd3 Qe7 34.Qd2 Rc7 35.Rd8 Kg7 36.g4 Nf6 37.Ba4 e4 38.g5-/+ ef3 39.Kh1 Rc4 40.gf6? Qf6-+ 41.Bb3?? Qh4 42.Kg1 (42.Qh2 Qe1 43.Qg1 f2 44.Rd7 Kh6 45.Qe1 fe1Q 46.Kg2 Qe2 47.Kg1 f3 48.Rh7 Kh7 49.Bc4 Qg2) 0–1. Strumilo,Slawomir – Niebrzydowski,Emil, Memorial Zamenhofa grupa B Poland, 2007. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 d6)

5.Nf3 Nf6

6.Bd3 d5 7.e5 Nfd7 8.0-0 0-0 9.Re1 f5 10.ef6 Nf6 11.Ng5 Qb6 12.Na3 Ba3? (better is 12...Bb4 13.Re2 Nc6=) 13.Ba3+- Re8 (13...Rd8 14.Be7 Nc6 15.Bd8 Nd8+-) 14.Rb1 (14.Bh7!? Nh7 15.Qh5 Ng5 16.Qe8 Kh7 17.Qh5 Kg8 18.Qg5 Nc6+-) 14...Qc7? (better is 14...Qd8+/-) 15.Nh7!+- Ne4 (15...Nh7 16.Qh5) 16.Be4 de4 17.Qh5 Qf7 18.Qf7 Kf7 19.Ng5 Kg6 20.Ne4 Nc6 21.c3 Rd8 22.Nd6 1–0. Simon,Laurent (1920) – Vallognes,R (1750), France op, 1994. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 Nf6)

6.Bd3 d5 7.e5 Nfd7 8.c3 Qa5 9.a4 Nc6 10.0-0 a6 11.Ba3 b5? (better is 11...Ba3!? 12.Ra3 0-0+=) 12.ab5+- Nd8 (better is 12...ab5 13.Bb2 Qa1 14.Ba1 Ra1 15.Bb5 Na7+-) 13.Qc2 Bb7 14.Bb2 Qb6 15.Na3 ab5 16.Nb5 Rc8 (16...Ra1 17.Ra1 (17.Ba1?! f5+-) 17...Bc6 18.Nd6 Bd6 19.ed6+-) 17.Ba3 Ba3 (17...Ba6 18.Bc5 Rc5 19.Ra6 Qa6 20.Nd6 (20.dc5?! Kf8+-) 20...Bd6 21.Ba6+-) 18.Ra3 (18.Na3?! Bc6+-) 18...0-0 (18...Rc6 19.Rb1+-) 19.Nd6 Ra8 (19...Rc6 20.Rb1 Qc7+-) 20.Ra8 Ba8 21.Bh7 Kh8 22.Ng5 f5 (22...Nf6 23.Qd3 Qc7 24.Bg8 Qc3 25.Qc3 Ng8 26.Rb1+-) 23.Qd3 (23.Qe2 Qc7 24.Qh5 Nf6 25.ef6 gf6 26.Bf5 Kg8 27.Ne6 Qe7 28.Qg6 Kh8 29.Nf8 Qg7 30.Qh5 Kg8 31.Bh7 Qh7 32.Nh7 Ne6 33.Qf7 Kh8 34.Nf6 Nd4 35.Qh7) 23...Nb7 (23...Rf6 24.ef6 Nf6+-) 24.Qh3 (24.Qh3 Nd6 25.Bf5 Kg8 26.Qh7) 1–0. Popescu,Daniel_Vasilica (2065) – Coman,L (1790), Sarata Monteoru ROM, Men Ch, 2012. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.Bd3 d6 7.0-0 Nc6 8.Nbd2 Qc7 9.c4 0-0 10.Ba3 e5 11.d5 Nb8 12.h3 Na6 13.Nb3 Nd7 14.Rc1 Nac5 15.Bb1 b6 16.Nfd2 Bg5 17.g3 Bd2 18.Qd2 Nf6 19.Nc5 bc5 20.Kg2 Qd7 21.Rh1 Nh5 22.f4 f6 23.f5 g6 24.Qh6 Qg7 25.Qg7 Ng7 26.g4 Rb8 27.Kf3 Ne8 28.Bd3 Rf7 29.Rb1 Rfb7 30.Ke3 Kf7 31.Rb7 Rb7 32.Rb1 Rb1 33.Bb1 Nc7 34.Bc2 Bd7 35.Bc1 Ke7 36.Bd2 Na6 37.Ba5 g5 38.Bb3 Bc8 39.Ba4 Nb8 40.Kd3 Nd7 41.Kc3 Nb6 42.Bd1 Ba6 43.Bb3 Kd7 44.Kd3 Ke7 45.Bd2 h6 46.Be1 Kf7 47.Bd2 Ke7 48.Ba5 Kd7 49.Be1 Ke7 50.Bf2 Kd7 51.Be3 Ke7 52.Bf2 Kd8 (better is 52...Kd7!?=) 53.h4 Ke7 54.hg5 hg5 55.a4 Kd8 56.Be1 Ke7 57.a5 Na8 58.Ba4 Nc7 59.Bd2 Kd8 60.Bc6 Ke7 61.Kc3 Kd8 62.Kb3 Ke7 63.Be3 Kd8 ½–½. Boettcher,Ullrich – Keller,H, Regional–Liga NN, 1988. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 Nf6)

6.Bd3 d6 7.0-0 Nc6 8.e5 Nd5 9.Bb5 Bd7 10.Bc6 Bc6 11.a3 Ba4 12.Qd3 Rc8 13.c4 Nb6 14.Nbd2 Qc7 15.ed6 Bd6? (better is 15...Qd6!? 16.c5 Rc5+=) 16.c5+- Bc5 17.dc5 Qc5 18.Ne4 Qc7 (18...Qc2 19.Nd6 Kf8+-) 19.Nd6 Ke7 20.Nc8 Qc8 21.Bd2 Qe8 (21...f6+-) 22.Bb4 Kf6 23.Nh4 (better is 23.Qd6 Qb5 24.Bc3 Kf5 25.Nd4 Kg6 26.Nb5 f6 27.Qd3 Kf7 28.Nd6 Ke7 29.Nb7 Kf7+-) 23...Bc6 (23...Qc6 24.f4 Qc4+-) 24.Nf3 (24.f4 Bf3 25.Qd6 Nc4 26.Bc3 Ne5 27.Be5) 24...Nd5?? (24...Ba4 25.Qd6 Qb5 26.Bc3 Kf5 27.Nd4 Kg6 28.Nb5 f6 29.Qd3 Kf7 30.Nd6 Ke7 31.Nb7 Kf7+-) 25.Qd4+- e5 26.Qh4 Ke6 27.Ne5 (27.Ne5 Nb4 28.Rfe1+-) 1–0. Wenske,Hardy – Dyck,Lothar, GER–ch Polizei, 1998. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 Nf6)

6.Bd3 d6 7.Bf4 Nc6 8.c3 a6 9.a4 b6 10.Nbd2 Bb7 11.Rb1 e5 12.Bg3 Nh5 13.Nc4 Ng3 14.hg3 b5 15.ab5 ab5 16.Ne3 ed4 17.cd4 Qa5 18.Qd2 Qd2 19.Kd2 Ra2 20.Nc2 b4 21.d5 Ne5 22.Bb5 Kf8 23.Rb4 Nf3 24.gf3 g6 25.Bc4 Ra7 26.Rhb1 Ba6?? (better is 26...Bc8+-) 27.Ra1 1–0. Peeters,T (2005) – Roos,Frank (1850), Geraadsbergen BEL, 2011. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 Nf6)

6.Bd3 h6 7.0-0 d6 8.Re1 0-0 9.Ba3 (9.Nc3 Nc6+=) 9...Nc6 10.Nbd2 a6 11.c4 e5 12.d5 Nb8 13.Qb3 (13.c5!? dc5 14.Ne5+=) 13...Nbd7= 14.Rac1 b6 15.Nf1 Nc5 16.Bc5 bc5 17.Ne3 Rb8?? (better 17...Bd7=) 18.Qb8+- Qa5 19.Qb3 Bg4 (19...g6 20.Rb1+-) 20.Rb1 (20.Ng4 Ng4 21.Rb1 g6+-) 20...Bf3 21.gf3 Qd8 22.Nf5 Nh5 (22...Re8 23.Qb6 Bf8 24.Qd8 Rd8 25.Ne3+-) 23.Qb6 Qe8 (23...g6 24.Qd8 Bd8 25.Nd6+-) 24.Kh1 (better 24.Qc7!? Bg5+-) 24...g6 25.Nh6 Kg7 26.Ng4 Nf4 27.Rb3 (27.Bc2 Rh8+-) 27...Rh8 (27...Qa4 28.Bf1 Rd8 29.Reb1+-) 28.Rg1 (28.Qa6 Qa8 29.Qa8 Ra8+-) 28...Rh3 (28...Qa4 29.Qc7 Re8 30.Bc2+-) 29.Rg3 (better 29.Bf1 Rh8 30.Qa6 Qa8+-) 29...Qh8 (29...Rh5 30.Qa6 Rh8 31.Ne3+-) 30.Bf1 (30.Qa7 Rg3 31.fg3 Qh3+-) 30...Rh5 (30...Rh7 31.Qa7 Qf8 32.Ne3+-) 31.Qc7 Bh4 (31...Qd8 32.Qa7 Qf8 33.Ne3+-) 32.Rh3! Nh3 33.Bh3 Bg5 (33...Qd8 34.Qa7 Rh8+-) 34.Qd6 (better 34.Rb8 Rh3 35.Qd6 Qb8 36.Qb8 Bf4+-) 34...Bd8 (34...Qd8 35.Qe5 Bf6 36.Qf6 Qf6 37.Nf6 Kf6+-) 35.Rb8 Be7 36.Qc7 Qh6 37.Nh6 (37.Qe7 Qc1 38.Kg2 Qg1 39.Kg1 Rf5 40.Qf8 Kh7 41.Qh6) 37...Rh3 (37...Rh6 38.Qe7 Rh3 39.Qe5 f6 40.Qe7 Kh6 41.Qf6 Rh2 42.Kh2 Kh5 43.Rh8) 38.Qe7 Rh6 (38...Rh2 39.Kh2 a5 40.Ng4 a4 41.Rf8 a3 42.Qf7) 39.Qf8 (39.Qe5 f6 40.Qe7) 39...Kf6 40.Rb6 (40.Qh6 Ke7 41.Qf8 Kf6 42.h4 a5 43.Rb6) 40...Kg5 41.Qf7 a5 (41...Rh2 42.Kh2 Kh4 43.Rg6 a5 44.Rg4) 42.Kg2 (42.Qe7 Kh5 43.h4 Rh8 44.Qg5) 42...a4 (42...Rh2 43.Kh2 Kh4 44.Rg6 a4 45.Rg4) 43.Kg3 (43.Kg3 Rh3 44.Kh3 a3 45.Rg6 Kh5 46.Qf5; 43.Qf6 Kh5 44.Kg3 Rh7 45.Qg6) 1–0. Sulaiman,Ahmad Ashrafi (1880) – Kalugampitiya,R (2155), 5th Asian Team Men Blitz, 2017. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.Nf3 Nf6)

6.e5 Nd5 7.c4 Nb6 8.Bd3 d6 9.ed6 Bf6 (9...Bd6? 10.c5+-) 10.c5 Nd5 11.Bc4 Nc6 12.Bd5 ed5 13.0-0 0-0 14.h3 Be6 15.Na3 b6 16.Rb1 Rb8 17.Bf4 Qd7 18.Kh2 h6 19.Re1 g5 20.Be5 Bg7 21.Bg7 Kg7 22.Ne5 Ne5 23.Re5 (23.de5?! bc5 24.Qf3 f5+=) 23...bc5 24.dc5 Qc6 25.Rb8 Rb8 26.Qd4 Kg8 27.Re3 Rc8 28.Rc3 a6 29.Nc2 a5 30.Ne1 Rb8 31.Nd3 Qa6 32.c6 Rd8 33.d7 Rf8 (33...Bd7 34.cd7 Rd7 35.Rc5+-) 34.Ne5 f6 (34...Qb5+-) 35.Ng6 Rd8 (35...Qa8 36.c7 Bd7 37.Nf8 Qf8 38.Qd5 Qf7+-) 36.Qf6 (36.Qf6 Kh7 37.Qe7 Kg8 38.Qd8 Kg7 39.Qh8 Kg6 40.d8Q Bh3 41.Qdf6 Kh5 42.Rh3 Kg4 43.Qf3) 1–0. Voloshin,Pavel – Pittermann,J (1925), Open C, Marianske Lazne CZE, 2010. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7)

6.e5 Nd5 7.c4 Nc7 8.Nc3 d6 9.ed6 Bd6 10.Bd3 Be7 11.0-0 0-0 12.Qe2 Nd7 (12...Nc6 13.Rd1+/-) 13.Bb2 (13.Bf4 Nf6+-) 13...Re8 14.Rad1 Nf8 (14...g6 15.h3+-) 15.Rfe1 (15.h4 Bh4 16.Nh4 Qh4+/-) 15...b6 (15...Ng6 16.Bc2+-) 16.Qe4 (better 16.Be4!? Ba6 17.Ne5 Ng6+-) 16...Rb8 (16...Ng6 17.Qe3+/-) 17.d5 (17.Ne5 Bb7 18.Nc6 Bc6 19.Qc6 Ng6+-) 17...Bb7 (17...Ng6+/-) 18.Ne5 (18.Qg4!? f5 19.Qh3+/-) 18...ed5+/- 19.cd5 (19.Qg4 f6 20.Nf3 Qd6 21.cd5 Qb4 22.Qb4 Bb4 23.Re8 Ne8+=) 19...Bf6+= 20.f4 Nd5? (20...Ng6+=) 21.Bb5?? (better 21.Bc4 Be5 22.fe5 Nc3 23.Bf7 Kf7 24.Qf5 Kg8 25.Rd8 Rbd8 26.Bc3+-) 21...Nc3= 22.Rd8 Ne4?? (better 22...Red8 23.Qb4 Nb5 24.Qb5 Rd2=) 23.Re8+- Re8 24.Be8 Ne6?? (better 24...Nd6 25.Ba4 Bc8+-) 25.Bf7 Kf8 26.Be6 Nc5 27.Bf5 (27.Ba3 Ke8 28.Bf5 h6+-) 27...g6 28.Nd7 (28.Nd7 Nd7 29.Bf6 Nf6 30.Bd3+-) 1-0. Lance5500 (2540) - Takeda (2245), lichess.org, 2016. (=1.Nf3 c5 2.b4 e6 3.bc5 Bc5 4.d4 Be7 5.e4)

3.bc5 Nc6

4.d4+/- d5 5.e5 Be7 6.Nh3 1–0. rthurc (2250) – amayfer (1820), net–chess.com, 2009.

4.Nf3 Qa5 5.Be2 Bc5 6.0-0=.

4.Nf3 Bc5 5.d4 Bb6 6.c3 d5 7.e5 (7.Nbd2 f5 8.ed5 ed5+=) 7...Nge7 (7...f6 8.Bb5=) 8.Bd3 0-0?? (better 8...Bd7=) 9.Bh7+- Kh8 10.Bd3 (10.Ng5 Ne5 11.de5 g6+-) 10...f6?? (better 10...Nf5+-) 11.Ng5!+- fe5 (11...fg5 12.Qh5) 12.Qh5 (12.Qh5 Kg8 13.Qh7) 1–0. Janek – Guest687, internet, 2018. (=1.e4 c5 2.b4 e6 3.bc5 Nc6)

3.bc5 Qf6

4.c3 Bc5 5.d4 Bb6 6.Nf3 h6 7.Bd3 Nc6 8.e5 Qd8 9.Ba3 Nge7 10.Nbd2 0-0 11.0-0 a6 12.Ne4 Re8 13.Nd6 Rf8 14.Nd2 Ba7 15.N2e4 b5 16.Qg4 b4 17.Nf6 Kh8 18.Qe4 Ng6? 19.Nf7! Rf7 20.Qg6 gf6 21.Qf7 Qg8 22.Qf6 Qg7 23.Qg7 Kg7 24.Bb2 bc3 25.Bc3 Bd4 26.Bd4 Nd4 27.Rab1 Nc6 28.Be4 Ra7 29.Rfc1 Bb7 30.f4 Nd4 31.Re1 Be4 32.Re4 Nb5 33.Reb4 Nc3 34.Rb7 Rb7 35.Rb7 Na2 36.Rd7 Kg6 37.Rd6 a5 38.Re6 Kf5 39.Rf6 Ke4 40.e6 (40.e6 Kd3 41.e7+-) 1–0. Aufmwasser,Guenter – Leuschke,Wolfgang, Wch Seniors Bad Wildbad (6), 1997.

4.d4+/- b6 5.cb6 ab6 6.c3 Qd8 7.Bd3 Be7 8.f4 Bh4 9.g3 Be7 10.Nf3 Bb7 11.Qe2 Nf6 12.e5 Nd5 13.0-0 Qc7 14.Bb2 h5 15.h4 f5 16.a3 Qc8 17.c4 Nc7 18.Nc3 Nc6 19.d5 Bc5 20.Kh2 Nd4 21.Nd4 Bd4 22.de6 de6 23.Nb5 Nb5 24.cb5 Qd7 (24...Bc5 25.Rfd1+/-) 25.Rfd1+- Bb2 26.Qb2 Qf7 27.Bf1 (27.Bc4 Bd5 28.Bd5 ed5+-) 27...0-0 28.Rd6 Rfc8 29.Bg2 Bg2 30.Qg2 Ra4 31.Rb6 Rac4 (31...Rc3 32.Rb7 Qe8 33.b6+-) 32.Rc6 (better is 32.Rd6+-) 32...Qb7?? (better is 32...R8c6 33.bc6 Qc7+/-) 33.Rc4+- Qg2 34.Kg2 (34.Kg2 Rc4 35.Rb1+-) 1–0. Bertault Lopez,Santiago – Garnacho Castano,Hector, Asturias–ch Primera, 2005. (=1.e4 c5 2.b4 e6)

4.d4+/- Nc6 5.Nf3 e5 6.d5 Nd4 7.d6 Nf3 8.Qf3 Qf3 9.gf3 b6 10.Nc3 bc5 11.Nb5 Kd8 12.Be3 Rb8 13.Bc5 Ba6 (13...a6 14.Nc7 a5 15.Nd5+-) 14.a4 (14.Na7 Bf1 15.Rf1 f5+-) 14...Nf6 (better is 14...Rc8 15.Ba3 Rc2 16.Na7 Bf1 17.Kf1 f5+-) 15.Ba7 Rb7 16.Bc5 Ne8 17.Rd1 h5 18.Bc4 Bb5 19.ab5 Rh6 20.b6 (20.Rb1!? Nd6 21.Bd5 Rb8+-) 20...Bd6 21.Be3 Bb4 22.Ke2 (22.Kf1!? Rd6 23.Rb1 Bd2 24.Bd2 Rd2+-) 22...Rc6+/- 23.Bf7 Rc2 24.Kf1 Nf6 (24...Bc5!? 25.Bc5 Rc5+/-) 25.Bd5+- Nd5 26.Rd5 (26.ed5?! Bc5 27.Rg1 Rb6 28.Bc5 Rc5 29.Rg7 Kc7+=) 26...d6 27.Kg2 Ke7 28.Ra1 Kd7 29.Ra8 Bc5 30.Bc5 Rc5 31.Rg8 (better is 31.Ra7 Kc8 32.Rb7 Kb7 33.Rd6+-) 31...Kc6+/- 32.Rc8 Kb6? (better is 32...Kb5 33.Rcc5 dc5 34.Re5 Kb6 35.Rh5 c4+/-) 33.Rd6+- Kb5 34.Rc5 Kc5 35.Rd5 Kc4 36.Re5 g6 37.Rg5 Rg7 (37...Rb6 38.f4+-) 38.f4 Kd4 39.Kf3 Rb7 40.Rd5 Kc4 41.Kg3 Re7 (41...Rb2 42.Rd6 Rb1 43.Kg2+-) 42.f3 Rf7 43.Rg5 Rf6 44.f5 gf5 45.Rf5 (45.Rh5?! fe4 46.fe4 Kd4+-) 45...Rh6 46.Kh4 1–0. Kotovskyy,Dmytro (1955) – Kordelskyy,Taras, UKR–ch sf U20, 2008. (=1.e4 c5 2.b4 e6 3.bc5+= Qf6)

4.d4+/- e5 5.Nc3 ed4 6.Nd5 +-.

3.e5 Nc6

4.Nf3 Nb4 5.c3 Nc6 6.d4 cd4 7.cd4 Bb4 8.Bd2 Qb6 9.Bb4 Qb4 10.Qd2 d6 11.Nc3 de5 12.Rb1 Qd6 (12...Qa5!? 13.Nb5 Qd2 14.Kd2 e4=) 13.Nb5+= Qd8 14.Ne5 (better is 14.de5 Kf8 15.Nd6+=) 14...Nge7-/+ 15.Bd3 a6 (15...Nd4? 16.Nd4 0-0 17.Ndf3+-) 16.Qf4? (better is 16.Nc3!?-/+) 16...Ne5-+ 17.Qe5 Qa5 (17...ab5 18.Qg7 Rg8 19.Qh7 Qd4 20.Bb5 Bd7 21.Bd7 Qd7 22.Qe4 Ra2 23.0-0-+) 18.Kf1 (better is 18.Kd1 ab5 19.Qg7-+) 18...ab5 19.Rb5 (19.Qg7 Rg8 20.Qh7-+) 19…Qa3 0–1. Tafner,Edson – De Souza,Jaldemar R, TBI–C–XI–XII–P–0028, 1993. (=1.e4 e6 2.e5 c5 3.b4 Nc6)

4.Nf3 b6 5.Bb2 d6 6.Bb5 Bb7= 7.0-0 d5 8.d4 cd4 9.Nd4 Qc7 10.Bc6 Bc6 11.Nc6 Qc6 12.a3 g6 13.Nd2+= Rc8 14.c4 Bg7 15.Rc1+/- Qb7 16.Qb3 Ne7+/- 17.Nf3 0-0+= 18.Rfd1 dc4 19.Rc4 Rc4 20.Qc4 Nd5 21.b5 Rc8 22.Qe4 Qd7 23.Qd3 h5 24.Rc1 Rc1 25.Bc1 Qc7 26.Bb2 Nf4 27.Qd2 Bh6 28.Kh1 Kg7 29.h4 Ng2 30.Ng5?? Nh4-+ 31.Qf4 Nf5 32.Qg4 hg4 (32...hg4 33.Kg1 Bg5 34.Kf1 Nh4 35.Bc3 Qc3 36.f4 Qf3 37.Ke1 Bf4 38.a4 Ng2) 0–1. Atushi,Kusaka – Badenhorst,Jack, IECC, 2003.

3.Nf3 a6

4.Bb2 cb4 5.Bd3 =.

4.Bb2 Nf6 5.d3 (5.e5!? Nd5 6.bc5 Bc5 7.d4 Bb4 8.Nfd2+=) 5...cb4+= 6.Be2 Be7 7.0-0 0-0 8.a3 Nc6 9.Nfd2 (9.ab4 Bb4 10.e5 Ne8+=) 9...d6 10.Kh1 (10.ab4 Nb4 11.c3 Nc6-/+) 10...e5 (10...ba3 11.Na3 d5 12.f4-/+) 11.f4 ef4 (11...ba3 12.Na3 b5 13.c4-/+) 12.Rf4 Nd7 (12...d5 13.e5 ba3 14.Na3-/+) 13.ab4+= Bg5 (13...Nb4 14.Nc3+=) 14.Rf1= Nb4 15.Ba3 Bf6 (15...Nc6 16.Bd6 Re8 17.Bg4=) 16.c3+= Nc6 17.Bd6 Re8 18.d4 Nb6 19.e5 Bg5 20.Bd3 Be6 21.Qc2 (21.Ne4+=) 21...g6? (21...Nd5!? 22.Rf3 Rc8+=) 22.Ne4 (22.Qb2 a5+/-) 22...Nd5 (22...Nc4 23.Rf6 Nd6 A) 24.Nd6? Bf6 25.Ne8 Be5 (25...Qe8?! 26.ef6 Qd8 27.Qb2=) 26.de5 Qe8-+; B) 24.Ng5+=) 23.Ng5 (better is 23.Qb2 Ra7 24.Rf3+/-) 23...Ne3? (better is 23...Qg5 24.Be4 Red8+=) 24.Qd2 Nf1 25.Bf1 Bf5 (25...Kg7 26.Be2+-) 26.Qf4 (better is 26.Bc4 Be6 27.d5 Bd5 28.Bd5 Ne5+-) 26...h6 27.Nf3 Kg7 28.Nbd2 Ne7 29.Bc4 b5 30.Bb3 Qc8 31.Bc5 Qc6 32.Nh4 Be6 33.Qf6 Kh7 34.Be6 Qe6 35.Qe6 fe6 36.Ne4 Nd5 37.Rf1 Kg7 38.Nf6 Nf6 39.Rf6 g5 40.Nf3 a5 41.Nd2 Rab8 42.Ne4 b4 43.Nd6 Rf8+/- 44.Nf5 ef5 45.Bf8 Rf8 46.cb4 ab4 47.Rb6+= Rc8 48.Kg1 Rc4 49.d5 Rd4 50.d6+= Kf7 51.d7 Ke7 52.e6 b3 53.Rb3 Ke6 54.Rb6 Ke5 55.Rh6 Rd7 56.Rh3 Ke4 57.Rb3 Rd2 58.Rb4 Ke3 59.Rb3 Ke2 ½–½. Tarayre,Pascal – Metivier,Richard, Saint Quentin op, 2000. (=1.e4 c5 2.b4 e6 3.Nf3 a6)

4.b5 ab5 5.Bb5 Qa5 (5...Na6 6.c4 Nb4 7.0-0 Ra2 8.Ra2 Na2 9.Ba3 Qa5 10.d4 Nb4 11.d5+=; 5...Nc6 6.Bb2 (6.Nc3 Nd4 7.0-0 Nb5 8.Nb5 Ra5 9.Qe2 d6 10.Bb2 e5 11.a4+=; 6.e5 d5 7.Bc6 bc6 8.d3 Ne7 9.Nbd2 Nf5 10.a4 Be7 11.0-0=; 6.0-0 Qf6 7.Nc3 Nd4 8.Nd4 cd4 9.Na4 Qe5 10.Nb6 Qb5 11.Na8=) 6...Na7 7.Bd3 d5 8.ed5 Qb6 9.Be5 f6 10.Bf4 ed5 11.0-0+=) 6.Nc3 (6.c4 Nc6 7.0-0 Na7 8.Ba4 b5 9.cb5 Nb5 10.Bb5 Qb5 11.Nc3+=; 6.Qe2 Na6 7.Bb2 Nb4 8.Na3 Qc7 9.c3 Nc6 10.0-0 Nf6 11.e5+=; 6.a4 Nc6 7.0-0 Be7 8.d3 Qc7 9.Re1 d6 10.Bb2 Nf6 11.e5+=) 6...g6 (6...Nf6 7.Rb1 Be7 8.e5 Nd5 9.Nd5 ed5 10.c4 0-0 11.cd5=) 7.0-0 Bg7 8.e5 (8.Bb2 Ne7 9.Qe2 0-0 10.Rfb1 d6 11.Qd3+=) 8...Nc6 (8...Ne7 9.Qe2 0-0 10.Ne4 b6 11.Bb2+/-) 9.Bc6 dc6 10.Ne4 Bf8? (10...Ne7!?+= 11.Nd6+/- 1.13) 11.c3 c4 12.Nd4?? (better is 12.d4+-) 12...Qe5+= 13.d3 c5 (better is 13...Be7!? 14.f3 h5 15.dc4 Nf6=) 14.f4 Qb8 15.Nb5 Bd7 16.dc4 Ra6 (better is 16...Bc6!? 17.f5 Be4 18.fe6 fe6+-) 17.Be3+- Rc6? (17...Bb5 18.cb5 Ra8 19.Nc5 Nf6+-) 18.Qd2 Be7 19.Rad1 Bc8 20.Nbd6 (20.Bc5 Rc5 (20...Bc5?? 21.Nc5 Kf8 22.Qd4+-) 21.Qd4 Kf8 22.Qh8 Rh5+-) 20...Bd6 21.Nd6 Ke7 22.Nb5 Nf6 23.Qf2 b6? 24.Qh4 Ba6 25.Rd2 Bb5 26.cb5 Rd6 27.Rfd1 Rhd8 28.f5? Rd2-/+ 29.Rd2 Rd2 30.Bd2 gf5?? 31.Bg5+- Qe5 32.Bd2?? Qe2?? 33.Bg5= Qd1 34.Kf2 Qc2 35.Kf1 Qc3 36.a4 Qd3 37.Kf2 Qc3?? 38.h3 c4 39.Qf4 Qc2 40.Kg1= Qd1?? 41.Kh2+- Qd6 42.Bf6 Kd7 43.Be5 Qc5 44.Qd2 Kc8 45.Qc3 Kb7?! 46.Qg3 Qd5 47.Qg7 Qd7 48.Qf8 Qc8 49.Qf7 Ka8 50.Qg7 h5 51.Qh8 Kb7 52.Qc8 Kc8 53.Kg3 Kd7 54.Kf4 h4 55.Kg5 1–0. Burnham,Frank – Posylek,Caesar Cezary, London Classic FIDE Open, London ENG, 2009. (=1.e4 c5 2.b4 e6 3.Nf3 a6)

4.b5 d5 A) 5.e5 A1) 5...Qa5 6.ba6 (6.a4 c4 7.Nc3 Bb4 8.Bb2 Ne7 9.Be2 Nd7 10.0-0 0-0 11.Qe1= –0.22) 6...Na6 7.Be2 b5 8.a3 Nc7 9.0-0 Ne7 10.d3 d4 11.Bd2= 0.16; A2) 5...b6 6.ba6 (6.Be2 ab5 7.Bb5 Bd7 8.Be2 Nc6 9.Bb2 Qc7 10.Na3 d4 11.Nb5= 0.00; 6.d4 Bd7 7.ba6 Na6 8.Bf4 cd4 9.Nd4 Ne7 10.Bg5 Qc7 11.f4= –0.25) 6...Na6 7.Be2 d4 8.0-0 Nb4 9.c3 dc3 10.Nc3 Ba6 11.Qa4+= 0.28; A3) 5...Nd7 6.c3 (6.a4 Ne7 7.d4 Nf5 8.c3 Qa5 9.ba6 ba6 10.Bd2 c4 11.Be2+= –0.34; 6.Bb2 Qc7 7.a4 d4 8.Qe2 ab5 9.Qb5 b6 10.Qe2 Ba6 11.d3+= –0.56; 6.a3 Ne7 7.Bb2 Ng6 8.Qe2 ab5 9.Qb5 Qc7 10.d4 cd4 11.Bd4-/+ –0.91; 6.Nc3 d4 7.Nb1 Qc7 8.Qe2 b6 9.c3 Bb7 10.ba6 Bf3 11.Qf3+= –0.56) 6...Be7 7.ba6 b6 8.Qa4 c4 9.d4 Ra6 10.Qc6 Ra7 11.Be2= –0.06; B) 5.ba6 B1) 5...ba6 6.Qe2 (6.Nc3 d4 7.Ne2 Nc6 8.c3 e5 9.Qa4 Bd7 10.Ng3 Nf6 11.Bc4= –0.25; 6.ed5 ed5 7.Be2 Nf6 8.0-0 Bd6 9.d4 c4 10.Nc3 0-0 11.Bg5= –0.12) 6...Ne7 7.Nc3 d4 8.Na4 Nec6 9.Rb1 Nd7 10.c3 Qa5 11.Qd1= –0.06; B2) 5...Na6 6.e5 (6.ed5 ed5 7.Bb5 Bd7 8.Bd7 Qd7 9.0-0 Nf6 10.Re1 Be7 11.Qe2= 0.13) 6...Bd7 7.Be2 b5 8.0-0 Ne7 9.d4 Nf5 10.c3 Bc6 11.Bd3+= 0.28; B3) 5...de4 6.Bb5 (6.ab7 Bb7 7.Ne5 Qd4 8.Qh5 g6 9.Bb5 Nc6 10.Nc6 Qa1 11.Na5-+ –1.97) 6...Bd7 7.ab7 Ra7 8.Bd7 Nd7 9.Ng1 Qg5 10.g3 Rb7 11.a4+= –0.31; C) 5.ed5 ed5 6.Be2 (6.ba6 ba6 7.Be2 Bd6 8.0-0 Nf6 9.d4 c4 10.Bg5 0-0 11.Nc3= –0.12; 6.Bb2 Qe7 7.Be2 ab5 8.0-0 b4 9.a3 ba3 10.Bb5 Nc6 11.Re1= 0.13; 6.Nc3 Nf6 7.ba6 ba6 8.Be2 d4 9.Na4 Bd6 10.Rb1 Be6 11.a3+= –0.37) 6...c4 7.ba6 Ra6 8.0-0 Be6 9.Bb2 Nc6 10.d3 Qb6 11.Qc1=.

4.bc5 Bc5 5.d4 Ba7 6.c3 Nf6 7.e5 Nd5 8.c4 Nb6? (better 8...Ne7 9.Be2 Nbc6+=) 9.a4+- Nc6 (9...a5 10.Ba3+-) 10.a5 Nc4 (10...Na5 11.Ra5 Nc4 12.Ra1+- (12.Bc4?! Qa5 13.Bd2 Qc7+-)) 11.Bc4 b6 (11...Na5 12.Be2+-) 12.ab6 Qb6 (12...Bb6 13.0-0 d5 14.ed6 Qd6 15.d5+-) 13.Be3 Qb4 (13...0-0 14.0-0 Nb4 15.Nc3+-) 14.Nbd2 Na5 (14...d5 15.ed6 Qd6 16.Ne4+-) 15.Ra4 Qb6 16.Qa1 d5 17.ed6 Nc4 18.Nc4 Qc6 (18...Qd8+-) 19.d5! ed5 (19...Qd5 20.Nb6 Double attack (20.Qg7 Discovered attack; 20.Nb6 Decoy); 19...ed5 20.Qg7 Discovered attack) 20.Qg7 Qa4 21.Qh8 Kd7 22.Nce5 Kd6 23.Nf7 Kc6 24.Qe8 Bd7 25.Qa8 Kc7 (25...Kb5 26.Qd5 Kb4 27.Bd2 Ka3 28.0-0 Kb2 29.Qe5 Bd4 30.Nd4 Qc4 31.Ne6 Ka2 32.Ra1 Kb3 33.Rb1 Ka3 34.Bb4 Qb4 35.Qa1) 26.Qa7 Kc8 27.Nd6 Kd8 28.Bg5 1–0. Leonco – Eduardo, internet corr, 2018.

4.bc5 Bc5 5.d4 Bb4 6.c3 Ba5 7.Bd3 d5 8.e5 Ne7 9.0-0 Qc7 10.Bd2 b5 11.Ng5 (11.a4 ba4 12.c4 dc4+/-) 11...Ng6 (11...h6!? 12.Nf3 0-0+=) 12.Qh5+/- Nf8 13.a4 (worse is 13.Nh7 Nh7 14.a4 Nd7-/+) 13...b4? (better is 13...ba4 14.c4 Nc6 15.Ra4 Bd2 16.Nd2 Rb8+/-) 14.cb4+- Bb6 15.Rc1 Nc6 16.Rc6! Qc6 17.Qf7 Kd8 18.Qg7 Qd7 (18...Bd4 19.Ra3 Ng6 20.Bg6 hg6 21.Nf7 Kc7 22.Nh8 Kb8 23.Qg6 Be5 24.Nf7+-) 19.Qh8 (19.Qh8 Qe8 20.Nh7 Nh7 21.Qh7+-) 1–0. Snijders,Frans – Zweedijk,L, Vlissingen HZ op, 1999. (=1.e4 c5 2.Nf3 e6 3.b4 a6)

4.bc5 Bc5 5.d4 Bb4 6.c3 Ba5 7.Bd3 Ne7 8.0-0 b5 9.Ba3 Bb7 10.Qe2 Nbc6 11.Rc1 b4 12.Bb2 bc3 13.Nc3 Nb4 14.Bb1 0-0 15.a3 Nbc6 16.d5 Na7 17.Na4 ed5 18.Nc5 Bc6 19.ed5 (19.Qa6? de4 20.Nb7 Bb7 21.Qb7 ef3 22.Qf3 Nac6-+) 19...Nd5? (better is 19...Bd5 20.Qa6 Bb6+/-) 20.Qd3+- (20.Qa6? Nb5 21.Nb7 Ra6 22.Nd8 Rd8-+; 20.Na6?! Re8 21.Qd3 Nf6+=) 20...g6 21.Qd4 (21.Na6?! Qb6 22.Bd4 Qd8+=; 21.Qa6? Nb5 22.Nb7 Ra6 23.Nd8 Rd8-+) 21...f6 22.Ba2 (22.Na6 Nb5 23.Qd3 Nbc3+=) 22...Nb5 23.Bd5 Kg7 24.Qd3 (24.Qd3 Qe7 25.Ng5 Bd5 26.Qd5+-) 1–0. Galioto,Giovanni (2155) – Terranova,Roberto (1820), Palermo op, 2004. (=1.e4 c5 2.b4 e6 3.Nf3 a6)

4.bc5 Bc5 5.d4 Bb4 6.c3 Be7 7.Bd3 d5 8.e5 f5 9.ef6 Nf6 10.Bf4 0-0 11.Nbd2 Ne4 12.Be5 Nc3 (12...Nd2!? 13.Qd2 Nd7+=) 13.Qc2+/- Ne4 14.Ne4 (14.Be4?! de4 15.Qe4 Nc6=) 14...de4 15.Be4 Qa5 16.Kf1 (16.Ke2 h6 17.Bh7 Kh8 18.Bg7 Kg7 19.Qg6 Kh8 20.Qh6+-) 16...Nc6? (better 16...h6!?+=) 17.Bh7+- Kh8 18.Bg6 (18.Be4 Ra7+-) 18...Bd7 19.h4 (better 19.Qb3!?+/-) 19...Rf3+= 20.gf3 Ne5 21.de5 Qe5 22.Re1 Qf4 23.Be4 Rf8 (23...Rc8 24.Qb3 Bc5 25.Kg2+/- (25.Qb7? Bb5 26.Kg2 Rb8-+)) 24.Kg2 b5 25.Qd3 Be8 26.Rh3 Bh5 (26...Qf6 27.h5+/-) 27.Reh1 (27.Bg6 Bb4 28.Re2 Bg6 29.Qg6 Rf6 30.Qe8 Bf8 31.Re6 Kh7+-) 27...g6 (better 27...Rd8!? 28.Qc3 e5+=) 28.Rg3+- (28.Bg6? Bg6 29.Qe3 Bd6-+) 28...Rf6 (28...Rd8 29.Qc3 Kh7 30.Bg6 Bg6 31.h5+-) 29.Qd7 (29.Bg6 Qh6 30.Bh5 Qh5+-) 29...Bd6 (29...Bf8 30.Rd1+/-) 30.Rd1 Bf8 31.Qd8 Kg7 (31...e5 32.Rd7+-) 32.Rd7 Kh6?? (32...Kh8 33.Ra7+-) 33.Qc7 (better 33.Qb6 Rf7 34.Qe6+-) 33...Qc7+/- 34.Rc7 Bd6 (34...Bg7 35.Rg5 Rf4 36.Ra7 Rh4 37.Rg3+-) 35.Rc6 Bg3 36.fg3 (36.Kg3?! g5 37.hg5 Kg5 38.Ra6 e5 39.Rf6 Kf6+-) 36...g5 37.hg5 (worse 37.Ra6 gh4 38.gh4 Be8+-) 37...Kg5 38.Ra6 (38.Rc5 Rf5 39.Bf5 ef5+-) 38...Bg6 (38...e5 39.Ra7 Re6 40.g4+-) 39.Bg6 Kg6 40.Rb6 Kf7 (40...Rf5 41.Re6 Kf7+-) 41.Rb5 Ke7 42.a4 Kd6 43.a5 Rf7 44.a6 Kc6 45.Ra5 Ra7 46.Kf2 Kb6 47.Ra1 1-0. Glig (2305) - alifie (2400), Rated Blitz game, 2019. (=1.e4 c5 2.Nf3 a6 3.b4 e6)

4.bc5 Bc5 5.d4 Be7 6.Bd3 Nc6 7.0-0 Nf6 8.e5 Nd5 9.c4 Nb6 10.Nc3 Nb4 (10...Bb4 11.Bd2 f5+-) 11.Rb1 (better 11.Be2!?+-) 11...Nd3+/- 12.Qd3 0-0 (12...d5 13.ed6 Bd6 14.Rb6 Qb6 15.c5 Bc5 16.dc5 Qc5 17.Ng5+/-) 13.Ne4 (13.c5 Nd5 14.Nd5 ed5+-) 13...Qc7 14.Neg5 Bg5 (better 14...g6 15.c5 Nd5+/-) 15.Ng5+- (15.Bg5?! Qc4 (worse 15...Nc4 16.Rfc1 b5 17.Be7+-) 16.Qa3 Nd5=) 15...g6 (15...f5 16.ef6! g6 17.f7 Kg7 18.Qe3 Rf7 19.Nf7 Kf7 20.Qf3 Ke8 21.Bh6+-) 16.Ba3 Re8 (16...Nc4 17.Bf8 Kf8 18.Rfc1+-) 17.Rfc1 (17.Qf3 d5 18.ed6 Qd7+-) 17...h6? (17...d5 18.Qh3 h5 19.cd5 Qd8+-) 18.Ne4 Qd8 (18...Kg7 19.Qb3+-) 19.Nf6 Kg7 20.Ne8 Qe8 21.Rb6 Qd8 22.Rcb1 Qg5 23.Bc1 Qg4 24.Be3 d6 (24...Qh5 25.c5+-) 25.ed6 Bd7 (25...Kh7 26.Qa3+-) 26.Qd1 (better 26.f3 Qh4 27.Rb7+-) 26...Rc8 (26...Qd1 27.Rd1 Ba4+-) 27.Qg4 Rc5 28.dc5 (28.dc5 Bb5 29.Qd4 f6 30.Rb7 Kg8 31.Qf6 Bd7 32.Qd8 Kf7 33.Rd7) 1-0. Jouneau,Q (2015) - Sepahpour,Shervine, ch-FRA Blitz Online Qual, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 a6)

3.Nf3 cb4

4.Bb2 Nc6 5.Bb5 f6 6.e5 (6.0-0 a6 7.Be2 b5=+) 6...Qb6 (6...fe5 7.Bc6 bc6 8.Ne5-/+) 7.Bc6 bc6 8.ef6 Nf6 9.0-0 Be7 10.Ne5 (10.a3 ba3 11.Ba3 d6-/+) 10...0-0 11.d4 Qc7 12.Nd2 d6 13.Nd3 a5 14.Qf3 Bb7 (14...Nd5 15.Qg3 Ba6-+) 15.Ne4? (15.Qh3 Nd5-/+) 15...Ne4 (15...c5!? 16.Nf6 Rf6 17.Qe2 cd4 18.Bd4-+) 16.Qe4-/+ c5 (better 16...Rf6!?-/+) 17.Qe6= Kh8 18.dc5 dc5 19.Qg4 (19.Be5!? Bc8 20.Bc7 Be6 21.Rae1=) 19...Bf6 (19...Bd6!? 20.Qh5 c4-/+) 20.Bf6 Rf6 21.Rfe1? (better 21.Qh5=+) 21...Rg6-+ 22.Qh3 (22.Qh5 Rg2 23.Kf1 Qc6-+) 22...Rg2 23.Kf1 (23.Qg2 Bg2 24.Kg2 Qc6 25.f3 Qg6 26.Kf2 c4-+) 23…Rg6 (23...Rg6-+) 0-1. yamahdi2014 (2315) - onubense (2460), Rated Bullet game, lichess.org, 2015. (=1.e4 B40: Sicilian: 2...e6, Unusual lines 1...c5 2.Nf3 e6 3.b4 cb4)

4.Bb2 Nc6 5.c4 bc3 6.Nc3 Bb4 7.Qa4 Nge7 8.a3 Ba5 9.Nb5 0-0 10.Nd6 Qc7 (10...Bc7 11.Nb5-/+) 11.Nc8 (11.Nc4!?=+) 11...Rac8-/+ 12.Rc1 Qf4 13.Bd3 (13.Bb5!?-/+) 13...f5-+ 14.Rc4? (14.Rc5 d5 15.Ra5 Na5 16.Qd7 fe4 17.Qe7-+) 14...b5! 15.Qb5 Rb8 16.ef5 Rb5 17.Rf4 Rb2 18.Bc4 (18.Ra4 Nf5 19.Ke2-+) 18...Rb1 (18...Rb1 19.Ke2 Rh1-+) 0–1. arvek – marekt, ChessWorld.net, 2017. (=1.e4 c5 2.b4 cb4 3.Nf3 e6)

4.Bb2 Nc6 5.d4 d5 6.ed5 ed5 7.Nbd2 (7.Bd3 Qe7 8.Be2 Nf6-/+) 7...Nf6 (7...Bd6 8.Bd3-/+) 8.Bd3+= Bd6 9.Qe2 Qe7 10.Qe7 (10.Ne5 Ng4 11.Ndf3 0-0+=) 10...Ke7 (10...Ne7 11.a3-/+) 11.0-0+= Rd8 12.Ne5 Be6 13.f4 Kf8 14.Rae1 Bc7 (14...Rac8 15.f5 Bd7 16.Re2+=) 15.f5 Bd7 16.Ndf3 Be8 (16...Re8 17.g3+=) 17.Re2 (17.g3 Bb6+=) 17...Bb6 18.Rfe1 (18.Nc6 Bc6 19.Ne5 Re8+=) 18...a5 (18...Rac8 19.a3 ba3 20.Ba3 Kg8 21.Nc6 Bc6 22.Bb2-/+) 19.g4 (19.Nc6 Bc6 20.Ne5 Re8+=) 19...h6 (19...Rac8 20.a3-/+) 20.Nc6 bc6 21.h3 a4 (21...c5 22.dc5 Bc5 23.Bd4 Bd4 24.Nd4 Ba4-/+) 22.a3? (better is 22.Kg2!?=) 22...c5-/+ 23.dc5 Bc5 24.Bd4 Bd4 25.Nd4 Rdb8 26.Ra1 ba3 27.Ra3 Rb2 28.Kf2 Rab8 29.Nf3 R8b4 30.Ne5 Ne4 31.Kg2 f6 32.Ng6-/+ Bg6 33.fg6 Ke7 34.Kf3+= f5 35.gf5 Kf6 36.Be4 de4 37.Kf4 Rb1-/+ 38.Rf2 Rc4-+ 39.Re3 Rb5 40.Kg4 h5! 41.Kg3 Rf5 42.Rfe2 Rf3! 43.Rf3 ef3 44.Kf3 Kf5 45.Rd2 Rc3 46.Ke2 Rh3 47.Rd6 Rg3 48.Ra6 a3 49.c4 Rc3 50.c5 Rc5 51.Ra3 Kg6 52.Kf3 Kg5 53.Kg3 h4 54.Kh3 Kh5 55.Ra4 Rc3 56.Kh2 g5 57.Kg2 Rc2 58.Kg1 h3 59.Kh1 g4 60.Ra3 Rf2 61.Rb3 Kh4 62.Rb4 Kg3 63.Rb3 Rf3 64.Rb1 Re3 65.Rg1 Kf4 66.Rf1-+ Ke4 67.Kh2 Re2 68.Kg1 g3 69.Ra1 Rd2 70.Re1 Kf3 71.Rf1 Ke2 72.Ra1 Rd1 73.Rd1 Kd1 74.Kh1 0–1. Staub,Madis – Fomina,Tatyana (2205), Viljandi EST, Ilmar Raud Mem, 2014. (=1.e4 c5 2.Nf3+/- e6 3.b4?? cb4+=)

4.Bb2 Nf6 5.e5 Nd5 6.a3 Be7 7.ab4 Nb4 8.Nc3 d6 9.ed6 (9.Nb5!?=) 9...Qd6+= 10.Nb5 Qc6 11.Nfd4 Qe4 12.Be2 N8a6 (worse is 12...Qg2 13.Bf3 Qg6 14.Nc7 Kd8 15.Na8+=) 13.Kf1 (better is 13.0-0!?+=) 13...0-0-+ 14.Ra3 Bf6 15.Re3 Qd5 16.c4 Qd7 17.Bc3 Nc6 (better is 17...Rd8-+) 18.Bd3?? (18.Nc6 Bc3 (worse is 18...Qc6 19.Bf6 gf6 20.d4=) 19.Nca7 Bf6-/+ (19...Bd2? 20.Rd3 Qe7 21.Rd2+-)) 18...g6 (better is 18...Bd4 19.Nd4 Nd4-+) 19.Nc6-/+ Bc3 (19...bc6? 20.Bf6 Re8 21.Nd4+-) 20.Nc3 Qc6 21.h4 Nc5 22.Bc2 e5 23.Nd5 Re8 24.h5 Bf5 (24...g5 25.Qf3 e4 26.Qf6+- (26.Be4?! Ne4 27.Re4 Re4 28.Qe4 Qa4+=)) 25.hg6= fg6?? (25...Bg6 26.Bg6 fg6+/-) 26.Bf5+- gf5?? (26...b5 27.Rg3 Nd7 28.Rh7 Nf8+-) 27.Qh5 h6 28.Rg3 Kh7 29.Qf7 (29.Qf7 Kh8 30.Qg7) 1–0. Kanninen,Matti – Sorvari,Jarmo, Tampere–ch, 1989. (=1.e4 c5 2.Nf3 e6 3.b4)

4.Bb2 Nf6 5.e5 Nd5 6.Bc4 Nb6 7.Be2 (7.Bb5 a6 8.Bd3 Nc6+=) 7...Be7 (7...d5 8.0-0+=) 8.c4 (8.0-0 0-0+=) 8...bc3 9.Nc3 Nc6 10.0-0 0-0 11.d4 (11.Rc1 d5 12.Na4 Na4 13.Qa4 Bd7+=) 11...d5-/+ 12.ed6 (12.Bd3 Nb4-/+) 12...Qd6 13.Qd2 (13.Nb5 Qd8-/+) 13...Nd5 (13...Rd8 14.Rfd1-/+) 14.Ne4 Qf4 15.Qc2 f5 (15...Rd8 16.a3-/+) 16.Nc5 (16.Nc3 Re8-/+) 16...Ncb4 17.Qb3 b6 18.Nd3 Nd3 19.Qd3 (19.Bd3 Bf6-/+) 19...Bb7 20.Bc1 (20.Ne5 Rac8-/+) 20...Qd6 21.a4 Nf4 22.Bf4 Qf4 23.Qb5 (23.Qb3 Rf6-/+) 23...Bd6 (23...Bf3 24.Bf3 Bd6 25.Rfe1 Qh2 26.Kf1-+) 24.Qd7? (24.g3!? Qe4 25.Rae1-+) 24...Bf3 (24...Rf7!? 25.Qe6 Bf3 26.g3-+) 25.g3 Rf6 (better is 25...Rf7!? 26.gf4 Rd7 27.Bf3 Rf8-+) 26.Bf3-/+ (26.gf4?? Rg6) 26...Qf3 27.Qd6 f4 28.Rae1 Re8 29.Qd7 Qa8 30.d5 Rd8-+ 31.Qe7 ed5 32.Re6 Re6 33.Qe6 Kh8 34.Qe5 fg3 35.fg3 Rf8 36.Rc1 Re8 37.Qf4 Rf8 38.Qe5-/+ Re8 39.Qf4 Rf8?? 40.Qe5-/+ Qe8 41.Qd6? Qe3-+ 42.Kg2 Qf3 43.Kh3 h6 44.Rc7?? Qf5 45.Kg2 Qf1 0–1. Evans,JS – Romilly,PJ, Staffordshire op, 1975. (=1.e4 c5 2.b4 cb4 3.Nf3 e6)

4.Bb5 a6 5.Bc4 b5-/+ 6.Bb3 Bb7 7.0-0 (better 7.d3!?-/+) 7...Be4-+ 8.Ne5 (8.Bb2 Nf6-+) 8...Bg2! 9.Re1 (9.Kg2 Qg5 Pinning) 9...Bb7 10.d4 (10.Bb2 Qg5 11.Qg4 Qg4 12.Ng4 a5-+) 10...Qh4 11.Re3 Bd6 12.Nd2 (12.Bb2-+) 12...Qd4 13.Rb1 Be5 14.Bb2 Qb2 15.Rb2 Bb2 16.Nf1 (16.Qg4 Ne7 17.Qb4 Nbc6-+) 16...Ne7 17.Ng3 a5 18.Nh5 (18.Qh5 a4 19.Be6 de6 20.Qb5 Bc6 21.Qb4 Bf6-+) 18...a4 19.Ng7 (19.Qb1 Bf6 20.Be6 fe6 21.Qb4-+) 19...Bg7 20.f4 Nf5 21.Rd3 ab3 22.Rb3 Bd4 23.Kf1 Rg8 24.Ke2 Rg2 25.Kd3 Na6 (25...Na6 26.Qe2 Nc5 27.Kd2 Ra2 28.Qg2 Nb3 29.Ke1 Ra1 30.Ke2 Nc1 31.Ke1 Na2 32.Kd2 Be3 33.Ke2 Nc3 34.Kd3 Rd1 35.Qd2 Rd2) 0–1. roli29 – marekt, ChessWorld.net, 2020. (=1.e4 c5 2.b4 cb4 3.Nf3 e6)

4.Bb5 a6 5.Be2 d5 6.ed5 ed5 7.0-0 d4 8.Bb2 Nc6 9.Re1 Be7 10.c3 d3 11.Bf1 Nf6 12.cb4 0-0 13.a3 Bf5 14.Nc3 Re8 15.Qb3 h6 16.Rac1 Be6 (16...Rc8!?=) 17.Re6+= fe6 18.Qe6 Kh8 19.Qf5 Qd7 20.Bd3 Qf5 21.Bf5 Bd6 22.Bg6 Re7 23.d4 Bf4 24.Rd1 Rd8 25.Bd3 Bc7 26.Na4 Rde8 27.Nc5 Bd6 28.Bc4 Bc5 29.bc5 Na5 30.Bf1 Rd8 31.Nh4 Rc7 32.Ng6 Kg8 33.Nf4 (33.Bc3!? Nc6 34.Bc4 Kh7+-) 33...Rc5+/- 34.Ne6 (34.dc5 Rd1 35.g4 Nb3-+) 34...Rc2 35.Nd8 Rb2 36.d5 Kf8 37.d6 Ke8 38.Ne6 g5 39.Bd3 Nb3 40.Bg6 Kd7 41.Bf5 Ke8? (better is 41...Rd2 42.Ng5 Kd6 43.Rd2 Nd2 44.Nf7 Kc5 45.Nh6 b5+/-) 42.d7! (42.d7 Nd7 43.Nc7 Kf8 44.Rd7+- (worse is 44.Bd7 Ra2+-)) 1–0. Hirtreiter,Michael – Fuhrt,T, ICCF tt corr, 1988. (=1.e4 c5 2.Nf3 e6 3.b4 cb4)

4.c3 d5 5.e5 Nc6 6.d4 bc3 7.Nc3 Qa5 8.Bd2= Bb4 (8...f6 9.Rc1=) 9.Rc1 (9.Nb5 Kf8=) 9...Nge7 (9...a6 10.Bd3=+) 10.Bd3 (10.Nb5 0-0 11.Bb4 Qb4 12.Qd2 Qd2 13.Kd2 f6=+) 10...g6 (10...0-0!?=+) 11.0-0 Nf5 12.Bf5 (12.a3 Be7= (12...Ba3? 13.Nb5 Qd8 14.Na3+-)) 12...gf5 13.Ne2 (13.a4 Qd8=) 13...Bd2=+ (worse 13...Qa2 14.Rc6 bc6 15.Bb4+=) 14.Nd2 (14.Qd2 Qd2 15.Nd2 Ke7=+) 14...Bd7 (14...Qa2!? 15.Nf3 Bd7=+) 15.Nb3 Qa2 16.Nc5 (16.Nc3 Qa6=) 16...b6 (16...Rb8 17.Ra1 Qc4 18.Rc1=) 17.Nd7 (better 17.Nc3!? Qc4 18.N3e4 Qd4 19.Nf6 Ke7 20.Ncd7 (20.Nfd7?? Qd1 21.Rfd1 bc5 22.Nc5 Ne5-+) 20...Qd1 21.Rfd1=+ (21.Rcd1? Rhd8-+)) 17...Kd7-/+ 18.Nc3 Qa5 19.Qh5 Ke7 (19...Rhf8 20.Rfd1-/+) 20.Qg5 Kd7 21.Qf6 (better 21.Qh5!?=) 21...Raf8 (21...Rhf8-/+) 22.Ne2 (22.Rfd1 Rhg8 23.Qh6 Rc8=+) 22...Qb5 (22...Qd2 23.Rc6 Kc6-/+ (23...Qe2 24.Rfc1 Qd1 25.Rd1 Kc6 26.Qe7+-)) 23.Nf4 Nd4 24.Rb1?? (better 24.Rfd1 Qb2 25.Ne6 Ne2 26.Kh1 Qc1 27.Nf8 Rf8 28.Rc1 Nc1 29.Qd6 Ke8 30.Qb8 Ke7 31.Qa7 Ke6 32.Qc7+-) 24...Qc4-+ 25.Rfc1? (25.Kh1 Nb3 26.Qh6 Nc5-+) 25...Ne2 (better 25...Nf3! 26.gf3 Qf4-+) 26.Ne2-/+ Qe2 27.Ra1 (better 27.Rb3!? Qa6 28.Rg3=+) 27...a5-+ 28.Rab1 Qa6 29.Rc2 b5?? (29...Rhg8 30.Kh1-/+) 30.Rbc1?? (better 30.Rc5 Qa7 31.Rcb5+-) 30...Qb6 (better 30...Qb7-+) 31.Rc7 Qc7 32.Rc7 Kc7 33.Qe7 Kc8 34.Qc5 Kd8 35.Qd6 Ke8 36.Qc6 Ke7 37.Qc7 Ke8 38.Qb8 Kd7 39.Qb7 Kd8 40.Qb6 Kc8 41.Qc6 Kd8 42.Qd6 Kc8 43.Qc6 Kd8 44.Qd6 ½-½. carlson85 (2220) - Aaron_Whitney (2265), Hourly Bullet Arena, lichess.org, 2016. (=1.e4 B20: Sicilian: Unusual White 2nd moves 1...c5 2.b4 cb4 3.Nf3 e6)

4.d4 (--> 1.b4 c5 2.d4 cb4 3.e4 e6 4.Nf3).

4.e5 d6 5.Bb2 de5 6.Ne5 Nf6 7.Qf3 Qc7 8.Bd3 Nbd7 9.Qg3 Bd6 (better 9...Nd5 10.Qg5 h6-/+) 10.Qg7+- Be5 11.Qh8 Ke7 12.c3 Nh5? (12...Nb6 13.f4 Bd7=+) 13.Qh7+- Ndf6 14.Qh6 Bf4 15.Qh8 b6 16.cb4 Bb7 17.Qa8 Ba8 18.a3 (18.b5-+) 18...Bg2 19.Rg1 Be4 20.Be4 Ne4 21.Bc3 Nd2! (worse 21...Nc3 22.Nc3 Qe5 23.Kd1-+) 22.Nd2 Deflection from c3 (22.Bd2 Theme: Deflection from e5 22...Qe5 Theme: Double Attack) 22...Qc3 A double attack 23.Rd1 Qe5 24.Kf1 Bd2 25.Rg3 Ng3 26.hg3 Qb2 27.Kg2 b5 28.Kh3 a5 (better 28...Bc3 29.Kg2-+) 29.ba5 Ba5 30.f4 (30.Rf1 Qa3 31.Kg2 b4-+) 30...Qa3 31.Rb1 Qf3 32.Rc1 Bd2 33.Ra1 Bf4 34.Rg1 f5 (34...f5 35.Kh2 Qf2 36.Kh1 Be3 37.Rd1 f4 38.gf4 Qg3 39.Rd7 Kd7 40.f5 Qg1) 0–1. David Lonsdale (2440) – juliangon (2585), ChessWorld.net, 2013. (=1.e4 c5 2.b4 cb4 3.Nf3 e6)

3.Nf3 b6

4.Bb2 cb4 5.a3 Nc6 6.ab4 Nb4 7.c3 =.

4.Bb2 Bb7 5.b5+=.

4.Bb2 Bb7 5.bc5 bc5 (5...Be4 6.Bc4=) 6.Nc3+= a6 (6...Nc6 7.Rb1+=) 7.Bc4 (7.Bd3 Nc6+-) 7...Ne7+= 8.0-0 (8.Rc1 Nbc6+=) 8...Ng6+- 9.d4 (9.Nd5!?+-) 9...cd4= 10.Qd4 Nc6 11.Qe3 Na5 (11...Rb8 12.Rab1+=) 12.Be2 (12.Bd3 Rb8+=) 12...Rc8 (12...Qc7 13.Na4+=) 13.Rad1 (13.Rab1!?+=) 13...Bc5 14.Qd2 (14.Qd3 Nf4 15.Qd2 Ne2 16.Qe2 0-0=+) 14...Be7= 15.Qd4 (15.Rfe1 Nc4 16.Bc4 Rc4=+) 15...Bf6=+ 16.e5 (16.Qb4 Nf4 17.Bd3 Be7=) 16...Nc6-/+ 17.Qa4? Attacking the isolated pawn on a6 (better 17.Qd7! Qd7 18.Rd7 Kd7 19.ef6 gf6 20.Ne4=+) 17...Nce5-+ 18.Ne5 (18.Nd4 Nf4-+) 18...Be5 (18...Ne5?! 19.Ne4 Be4 20.Qe4-/+) 19.Ne4 (19.Bc4 0-0 20.Rd7 Bh2 21.Kh2 Qh4 22.Kg1 Bg2-+) 19...Be4 (19...Bc6 20.Qa3 Be4 21.Be5 Ne5 22.Qe3-+) 20.Be5 Bc2 (20...Ne5?! 21.Qe4 f6 22.f4=+) 21.Qg4 (21.Qd4 Ne5 22.Qe5 Bd1 23.Rd1-+) 21...Bd1 22.Rd1 Ne5 23.Qg7 Ng6 24.Ba6 Rc5 25.a4 (25.Be2 Qc7-+) 25...Qc7 0–1. Nygren,Kim (2215) – Nyander,Joakim (2210), Swedish Championship Elitserien, 2016. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.Bb2 Bb7 5.bc5 bc5 6.Nc3 d6 7.Rb1 Nd7 8.Ba1 (8.Qe2 Ngf6+=) 8...Rb8= 9.Bb5 Ne7 (9...Ngf6 10.0-0=) 10.0-0+= Bc6 (10...a6 11.Ba4+=) 11.d4 Rc8 (11...cd4!? 12.Qd4 Rb6+=) 12.d5+- Bb5 (better 12...ed5!? 13.ed5 Bb5 14.Nb5 Nb6+-) 13.Nb5 (13.Rb5?! Ng6+/-) 13...Nb6 14.de6 fe6?? (14...Nc6 15.ef7 Kf7+-) 15.Nd6 (15.Nd6 Kd7 16.Nf7 Ke8 17.Nd8 Rd8 18.Qe2+-) 1-0. Rychkov,O (2405) - Perdomo,C (2300), Titled Tuesday, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.Bb2 Bb7 5.d3 cb4+= 6.Be2 d5 (6...Nf6 7.0-0+=) 7.ed5 Qd5 8.0-0 Nf6 9.a3 Nbd7 10.Qd2 (10.ab4 Bb4 11.c4 Qf5+=) 10...a5 11.ab4 Bb4 12.c3 Bd6 13.Na3 Nc5 14.Rab1 Rd8 (14...0-0!?-/+) 15.Nc4+= Bc7 16.d4 Nce4 17.Qc2 0-0 (17...Ng5 18.Nce5 0-0+=) 18.Ba3= Rfe8 19.Nb6 Qh5 20.Nc4 (20.Ne5 Qh4 21.Nbd7 Bd5 22.Nf6 gf6+=) 20...Ba8 (better is 20...Nc3 21.Rb7 Bh2 22.Kh1 Be5 23.Kg1 Bh2 24.Kh1 Be5 25.Kg1 Bh2=) 21.Nfe5 Qh4 22.Nf3 (22.f3!? Nd6 23.Nd6 Bd6 24.Bd6 Rd6 25.Qa4+-) 22...Qh5+/- 23.Nfe5 Qh4 24.Nf3?? (better is 24.f3!? Nd6 25.Bd6 Bd6 26.Nd6 Rd6 27.Qa4+-) 24...Qh6 (24...Qh5 25.h3+/-) 25.Nce5 (25.Bc1 Bf4 26.Bf4 Qf4 27.Nfe5+/-) 25...g5?? (25...Ng5!? 26.Bc1 Be4=) 26.Bb5 (better is 26.h3!? Rb8 27.c4+-) 26...g4+= 27.Be8 Re8 28.Ne1 Ng5 (28...Nd2 29.Bc1 Be5 30.de5 g3+=) 29.Qa4?? (29.Rb5 Bc6 30.Rc5 Be5 31.Re5 g3 32.fg3 Ng4+-) 29...Rc8?? 30.f3?? gf3= 31.N1f3 Nf3 32.gf3 Qe3 33.Kg2 Be5 34.de5 Kh8 35.Qh4?? Rg8-+ 36.Kh3 Qe5 37.Rb8 Qf5 38.Qg4 Ng4 0–1. Gallart Zafra,J (2225) – Collins,S (2455), Barcelona ESP, 2012. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.Bb2 Nf6 5.e5 Nd5 6.bc5 (6.b5 Bb7+=) 6...bc5 (6...Nc6 7.Nc3 Nc3 8.Bc3 (worse 8.dc3 Bc5 9.Bd3 f6=+) 8...Bc5 9.d4+=) 7.Nc3+- Nc3 8.Bc3 Nc6 9.Rb1 Be7 10.Bd3 0-0 11.h4 f5 (11...Qc7!?+=) 12.ef6+- Bf6 13.Ng5 h6 14.Nh7 Bc3 15.Nf8 (worse 15.dc3 Rf5 16.Bf5 ef5 17.Qd5 Kh7 18.Qf5 Kh8=+) 15...Bd2 16.Qd2 Qf8 17.0-0 d5 18.Qe3 c4 19.Be2 e5 20.f4 e4 21.c3 Be6 (21...Bd7!?+-) 22.f5+- Bf7 (22...Bd7 23.Rbd1 Ne7 24.Bc4+-) 23.f6 g6 24.Rb7 Re8 25.Rc7 Ne5 26.Ra7 h5 (26...Re6 27.Rb7+-) 27.a4 (27.Rb1 Nc6 28.Rc7 Rc8+-) 27...Rb8 (27...Re6 28.a5+-) 28.Re7 Nc6 29.Rc7 Ne5 (29...Nd8+-) 30.Qg5 Ng4 (30...Re8 31.Rb1 d4+-) 31.Bg4 hg4 32.h5 (32.h5 Qd8 33.hg6 Qc7 34.gf7 Kf7 35.Qg7 Ke6 36.Qc7 Rb7 37.Qb7 Kd6 38.f7 d4 39.f8Q Ke6 40.Qfe7) 1–0. Janev,Pavel (2250) – Dimitrov,Ivan (1880), 31st Open TETEVEN, 2016. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.b5 a6 A) 5.h3 Nf6 (5...Bb7 6.Nc3 Nf6 7.e5 Nd5 8.a4 Nc3 9.dc3 Be7 10.Bf4 ab5; 5...Be7 6.Nc3 Bb7 7.d4 cd4 8.Qd4 ab5 9.Bb5 Nc6 10.Qd2 Qc7; 5...ab5 6.Bb5 Ba6 7.Nc3 Nf6 8.d3 Nc6 9.0-0 Be7 10.Ba6 Ra6) 6.Nc3 Bb7 7.e5 Nd5 8.a4 Nc3 9.dc3 Be7 10.Bf4 ab5; B) 5.a4 Bb7 (5...Nf6 6.e5 Nd5 7.Nc3 Bb7 8.Bb2 Be7 9.Be2 Nb4 10.0-0 0-0; 5...ab5 6.Bb5 Nc6 7.Bb2 Nf6 8.e5 Nd5 9.Nc3 Be7 10.Nd5 ed5) 6.Nc3 ab5 7.Bb5 Nc6 8.0-0 Nd4 9.Bd3 Nf6 10.Bb2 Rc8; C) 5.e5 ab5 (5...Nh6 6.Na3 ab5 7.Nb5 Nc6 8.Bd3 Bb7 9.0-0 Nb4 10.Be2 Nf5; 5...Ne7 6.Na3 d5 7.ed6 Nd5 8.Bb2 Bd6 9.Bg7 Rg8 10.Be5 Be5; 5...Bb7 6.Nc3 Nh6 7.Bb2 ab5 8.Nb5 Nc6 9.a4 Be7 10.Bc4 Nf5; 5...d5 6.Nc3 Nh6 7.a4 Be7 8.Be2 d4 9.Ne4 0-0 10.0-0 ab5) 6.Bb5 Nc6 7.0-0 Nh6 8.Nc3 Nf5 9.a4 Bb7 10.Bd3 Be7; D) 5.Nc3 Bb7 (5...ab5 6.Bb5 Nc6 7.0-0 Bb7 8.Re1 Be7 9.Bb2 Nf6 10.e5 Nd5) 6.Bb2 ab5 7.Bb5 Nc6 8.0-0 Nge7 9.Ne2 Ng6 10.h3 Bd6; E) 5.Bb2 Bb7 (5...ab5 6.Bb5 Nc6 7.0-0 Bb7 8.h3 Nf6 9.e5 Nd5 10.Nc3 Be7) 6.Nc3 ab5 7.Bb5 Nc6 8.0-0 Nge7 9.g3 Ng6 10.Na4 h5.

4.b5 d6 5.Nc3 Nf6 6.d4 cd4 7.Qd4 Be7 8.Ba3 Qc7 9.Qc4 Qc4 10.Bc4 Nbd7 11.0-0 Bb7 12.Nd2 Rc8 13.Bb2 Be4 14.Be6 Bd3?? (better is 14...Bc2 15.Bh3 Rc5+=) 15.Bd7+- (15.cd3?! fe6 16.d4 e5=) 15...Nd7 16.cd3 1–0. usingprogram – xsensejx, internet, 2011. (=1.e4 c5 2.b4 e6 3.Nf3 b6)

4.c3 cb4 5.d4+= (5.Bb2 a5 6.cb4 ab4 7.Bc4 Nf6 8.d3 d5 9.ed5 ed5 10.Bb5 Bd7; 5.cb4 Bb4 6.a3 Ba5 7.Nc3 Nc6 8.Bb2 Nf6 9.Bd3 0-0 10.0-0 d6) 5...Nf6 (5...Bb7 6.e5 Nc6 7.a3 bc3 8.Nc3 Rc8 9.Bd2 Nh6 10.Bd3 d6; 5...Qc7 6.Bd3 bc3 7.Qb3 Ba6 8.Ba6 Na6 9.Nc3 Bb4 10.Bd2 Nf6; 5...Be7 6.Bd3 Nf6 7.e5 Nd5 8.c4 Nc7 9.0-0 Nc6 10.Nbd2 0-0) 6.Bd3 Bb7 7.e5 Ne4 8.Qc2 Nc3 9.Nc3 bc3 10.Qc3 Bf3.

4.c3 Bb7 5.bc5 Be4 6.cb6 (6.d4 bc5 7.Nbd2 Bd5 8.Bd3 cd4 9.cd4 Nf6 10.0-0 Nc6) 6...ab6= 7.d3 Bg6 8.Nbd2 Nf6 9.Be2 Nd5 10.Qc2 Qc7.

4.c3 Bb7 5.Bd3 Nf6 (5...cb4!? 6.0-0 d5+=) 6.e5= Ne4 7.a3 Ng5 8.Nh4 Nc6 9.f4 Nh3 10.Qg4 Nf4 11.Qf4 g5 12.Qe3 gh4 13.Be4 Qc7 14.0-0 d5 15.ed6 Bd6 (worse is 15...Qd6 16.d3+=) 16.Qh3 0-0-0 17.bc5 Bc5 18.Kh1 f5 19.d4 Bd6 20.Bf3 Ne7 21.Bg5 Rhg8 22.Bh4 Bf3 23.Qf3 Rg4 24.Bf6 Rdg8 25.Ra2 Nd5-/+ 26.Be5 Be5 27.de5 Qe5 28.Re2 Re4 29.Re4 Qe4 30.Qe4 fe4 31.Re1 Rg4 32.g3 e3-+ 33.Kg2 Kd7 34.Kf3 Rc4 35.Ke2 Kd6 36.Kd3 b5 37.Rf1 Rc7 38.Rf8 e2! 39.Ke2 Nc3 40.Nc3 Rc3 41.Rb8 Kc5 42.Rb7 Ra3 43.Rh7 b4 44.g4 b3 45.Rb7 Kc6 46.Rb8 Kc7 47.Rb5 a6 48.Rb4 a5 49.Rb5 a4 50.Kd3 Ra2 51.Kc3 Rh2 52.g5 Rg2 53.Kb4 Rg4 54.Ka3 Kd7 55.Ra5 Kd6 56.Rb5 e5 57.Rb6 Kd5 58.g6 Kc5 59.Re6 Kd5 60.Rb6 Rg1 61.Ra6 e4 62.Ra4 e3 63.Ra5 Kd4 (63...Kd4 64.Rb5 e2 65.Rb4 Ke5 66.Rb5 Kf4 67.Rb4 Kf5 68.Rb5 Kg6-+) 0–1. Hoiberg,Nina (2280) – Sogaard,Soren (2340), DEN–ch Randers, 1990. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.c3 Bb7 5.e5 cb4 6.a3 Bf3 7.Qf3 Nc6 8.ab4 Ne5 9.Qe2 Bd6 10.g3 Nf6.

4.c3 Bb7 5.e5 cb4 6.d4 bc3 7.Nc3 Bb4 8.Qb3 Nc6 9.Ba3 Qe7 10.Bb4 Qb4 11.Qb4 Nb4 12.Nb5 Ke7 13.Kd2 Nh6 (13...Bf3 14.gf3 Nc6 15.f4+=) 14.Rb1 Nd5 (worse is 14...Na2 15.Bc4 Be4 16.Rb2+=) 15.Bd3 (15.Nd6 Bc6=) 15...f6 16.a4 (16.Nd6 Bc6+=) 16...Nf4 17.Nd6 Bf3 18.gf3 Nd3 19.Kd3 fe5 20.de5 Rhf8 21.Rhg1 g6 22.Ke4 Nf5 23.Nf5 (better is 23.Rbd1!?-/+) 23...Rf5-+ (23...gf5?! 24.Kd4+=) 24.Rgd1? Raf8 (24...Raf8 25.Re1 Rf3-+) 0–1. Hoiberg,Nina (2295) – Ivanka Budinsky,Maria (2320), Tuzla Interzonal (Women), 1987. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.c3 Bb7 5.e5 cb4 6.d4+= Ne7 7.a3 bc3 8.Nc3 Nf5 9.d5 Na6 10.Bd3 Rc8.

4.c3 Bb7 5.e5 d5 6.ed6 (6.bc5 bc5 (6...Nc6 7.cb6 Nh6 8.ba7 Ra7 9.Qb3 Ba6 10.Ba6 Ra6) 7.d4 (7.Bb5 Nc6 8.0-0 Nh6 9.c4 d4 10.d3 Be7) 7...Nc6= 8.Bb5 Rb8 9.Nbd2 Qa5 10.Rb1 Nge7) 6...Bd6 (6...cb4 7.Qa4 Bc6 8.Bb5 Bb5 9.Qb5 Qd7 10.Qb4 Bd6) 7.b5 (7.bc5 bc5 8.d4 (8.Na3 Nf6 9.Rb1 Bd5 10.Bb5 Nc6) 8...cd4 (8...Nf6 9.Na3 0-0 10.Nc4 Bd5) 9.Nd4 (9.Qd4 Nf6 10.Ba3 Ba3) 9...Nf6= (9...Nc6 10.Na3 Nd4) 10.Nd2 0-0) 7...Nf6+= 8.Be2 (8.Na3 0-0 9.Be2 Nbd7 10.Nc4 Qc7) 8...Nbd7 (8...0-0 9.Na3 a6 10.0-0 Nbd7) 9.0-0 (9.Na3 Ne5 10.Ne5 Be5) 9...Qc7 (9...0-0 10.Na3 Ne5) 10.g3 (10.Na3 0-0) 10...0-0 (10...c4-/+) 11.Bb2 Rac8 12.c4 Rfd8 13.d4 (13.Nc3 Ra8-/+) 13...cd4 14.Qd4 Bf3 15.Bf3 Be5 16.Qd2 Bb2 17.Qb2 Qc4 18.Nd2 Qc3 19.Qc3 Rc3 20.Bc6 Nc5 21.Nb3 Kf8 22.Nc5 Rc5 23.Rfd1 Rd1 24.Rd1 Ke7 25.Kf1 a6 26.a4 a5 27.Rd2 Rc4 28.Ra2 Nd5 29.Bd5 ed5 30.Ke2 Kd6 31.Kd3 Kc5 0–1. Kormos,Ladislav – Somogyi,Gabor (1960), First Saturday FM–B June, 2011. (=1.e4 e6 2.Nf3 c5 3.b4 b6)

4.c3 Nf6 5.e5+= Nd5 6.a3 Bb7 7.d4 cd4 8.cd4 Be7 9.Bd3 Nc6 10.0-0 f5 11.Bd2 0-0 12.Nc3 Nc3 13.Bc3 Rc8 14.Rc1 Nb8 15.Nd2 Qe8 16.Be2 Rc7 17.Bf3 Qc8 18.Qb3 Bf3 19.Nf3 (19.gf3?! d5+=) 19...Qb7 20.Bd2 Rfc8 21.Rc7 Rc7 22.Rc1 Na6 23.Rc7 Nc7 24.Qc2 Nd5 25.Ne1 Qa6 26.Bc1 Qb5 27.Nd3 Kf7 28.Nb2 (28.Qb3!?+=) 28...a5+= 29.ba5 Qa5 30.Kf1 Qa3 (30...Ba3? 31.Nc4 Qb5 32.Ba3+-) 31.Nc4 Qa8 32.Qd2 Kf8 33.g3 b5 34.Nd6 (better is 34.Nb2!?-+) 34...Bd6 35.ed6 Qc6 36.Qb2 Nc3 (36...Qd6?! 37.Qb5 Kf7 38.h4-/+) 37.Kg1 Qc4 38.Be3 b4 39.Qa1 Qa2 40.Qf1 (40.Qa2 Na2 41.d5-+) 40...Ne2 41.Kg2 b3 42.Bc1 b2 (worse is 42...Nd4 43.Qc4 Qa8 44.Kh3-+; 42...Nc1 43.Qc1 Qc2 44.Qg5-+) 43.Qe2 Qd5 0–1. Aly,Hosam (2135) – Naby,Saiid A (2285), Mahalla op, 2009. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.bc5!? Bc5 5.d4+= Bb4 6.Bd2 Nc6 7.Bb5 Bd2 8.Nbd2 Nge7 9.0-0 0-0 10.Re1 Bb7.

4.bc5!? Nc6 5.cb6 Nf6 (5...ab6 6.Nc3 Nf6 7.Bb2 Bb7 8.Bc4 Be7 9.0-0 0-0 10.e5 Ng4) 6.e5 Ng4 7.d4 Qb6 8.a3 d5 9.Nc3 Be7 10.h3 Nh6.

4.bc5!? Nf6 5.e5 (5.Nc3 Bc5 6.e5 Nd5 7.Nd5 ed5 8.d4 Bb4 9.Bd2 Bd2 10.Qd2 Ba6) 5...Ne4 6.d3 Nc5 7.Nc3 Bb7 8.Be2 d5 9.ed6 Bd6 10.0-0 Nbd7.

4.e5 d5 5.a3 Bb7 6.bc5 bc5 7.c3 a5 8.Bd3 Ne7 9.0-0 Ba6 10.c4 Nbc6 11.Qa4 Bc4 12.Bc4 dc4 13.Nc3 Qd7 14.Qc4 Ng6 15.d4 (better is 15.Qe4=) 15...cd4-/+ 16.Nb5 Rc8 17.Nbd4 Nd4 18.Qd4 Qd4 19.Nd4 Ne5 20.Bd2 Nc4 21.Rfc1 Kd7 22.Rab1? (22.Rd1 e5 23.Nb5-+) 22...Ba3?? (better is 22...Nd2 23.Rb7 Kd8 24.Rc8 Kc8 25.Rf7 Ba3-+) 23.Rb7+= Ke8 24.Rc2 Nd6 25.Rc8 Nc8 26.Ba5 h5?? (better is 26...Bd6=) 27.Nb5 Bf8? (better is 27...Nd6 28.Rb8 Kd7 29.Rh8 Nb5 30.Rh5 Kc6+/-) 28.Rc7+- 1–0. Hoiberg,Nina (2195) – Sikora Gizynska,Bozena (2220), Nordic–tt Aabybro, 1989. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.g3 Bb7 5.d3 cb4 6.Bg2 d6 7.0-0 Nf6 8.Bg5 Be7 9.Nbd2 Nbd7 10.Rb1 a5 11.Re1 Qc7 12.Nd4 Rc8 13.Rc1 Ne4?? (better is 13...0-0-/+) 14.Be7 Nd2 (14...Nc3 15.Qh5 Ke7 16.Bb7 Qb7 17.Nf5 Kf8 18.Nd6 Nf6+/-) 15.Bd6?? (better is 15.Nb5!? Qc5 16.Bd6 (worse is 16.Bb7 Ke7 17.Bc8 Rc8+/-; worse is 16.Qd2 Qb5 17.Bb7 Rc7+=; 16.Nd6?! Ke7 17.Nb7 Qc3+/-) 16...Qb5 17.Bb7+-) 15...Qd6 16.Bb7 Rc7?? (better is 16...Rb8 17.Nf5 Qc5 18.Ng7 Kd8+/-) 17.Nb5+- Qc5 18.Nc7 Qc7 19.Bg2 (19.Qd2?! Qb7 20.c3 bc3 21.Qc3 0-0+/-) 19...Nc4 20.dc4 Qc4 21.Qd6 Qc5 22.Qd2 Nf6 23.Qf4 (better is 23.c3!? b3 24.ab3 0-0+-) 23...0-0 24.Red1 Qb5 (24...b5 25.Qd4 Qd4 26.Rd4+-) 25.Qc7 Ne8 26.Qc6 Qc6 27.Bc6 Nf6 28.Rd6 h6 29.Rcd1 Ng4 30.Rd8 Ne5 31.Rf8 (31.Be8 g5+-) 31...Kf8 32.Bb5 Ke7 33.f4 Ng4 34.Rd7 Kf6 (34...Kf8 35.Rb7 g5 36.fg5 hg5 37.Rb6+-) 35.Rb7 Ne3 36.Ba4 (36.Be8!? e5+-) 36...Nd5 37.Be8 (37.Be8 Ne7 38.g4+-) 1–0. Ghinea,Constantin (1835) – Csavlovics,Jozsef, Miercurea Ciuc Banc Post op, 2007. (=1.e4 c5 2.b4 b6 3.Nf3 e6)

4.a3 Bb7

5.d3 d6 6.Bb2 Nd7 7.Nc3 Ngf6 8.Be2 d5 9.e5 d4 10.ef6 dc3 11.fg7 Bg7 12.Bc1 cb4 13.ab4 Qe7 14.Rb1 0-0 15.0-0 Nf6 16.Bg5 Qd6 17.Qc1 Nd5 18.Bh6 f6 (18...Nb4?? 19.Qg5 Qh2 20.Kh2 Bf3 21.Qg7) 19.Bg7 Kg7 20.Nd4 Rae8 (worse is 20...Nb4 21.Rb4 Qb4 22.Ne6 Kh8 23.Nf8 Rf8 24.Qe3=) 21.Nb5 Qc6 22.Nd4 (22.Na7? Nf4 23.Nc6 Ne2 24.Kh1 Nc1-+) 22...Qd6 23.Nb5 Qd7 24.Nd4? (better is 24.Na7 Ra8 25.Ra1 Nb4 26.Qb1+=) 24...e5-+ 25.Bh5 ed4 26.Be8 Re8 27.Re1 Re1 28.Qe1 Nf4 29.f3 Nd5 30.Qg3 Kf7 31.Qh4 Ne3 32.Qh7 Ke6 33.Qh3 Ke7 34.Qh7 Ke6 35.Qg8 Qf7-/+ 36.Qd8 Qg7 37.g3 Qd7 38.Qg8 Qf7 39.Qd8 Bd5 40.Re1 Qd7 41.Qg8 Kd6 42.Qb8 Ke7 43.Ra1 a5 44.g4? Bf3 45.h3 Qd6 46.Qd6 Kd6 47.ba5 Nc2 48.Rf1 Ne3 (48...Ne3 49.Ra1 ba5-+; 48...ba5 49.Rf3 Nb4 50.Rf4-/+) 0–1. Buryshin,V (1980) – Batmunkh,Angrik, ch–UKR b18, Kyiv UKR, 2010. (=1.e4 e6 2.Nf3 c5 3.b4 b6)

5.d3 Nf6 6.c3 Be7 7.Be2 0-0 8.0-0 Nc6 9.Nbd2 cb4 10.ab4 a6 11.Bb2 b5 12.Re1 Rc8 13.Nf1 d6 14.Ng3 e5 15.Nf5 g6 16.Ne7 Ne7 17.Qd2 Nh5 18.g3 f5 19.Ng5 Rf6 20.Bh5 gh5+= 21.Qe2 Qe8 22.h4 f4 23.gf4 Rf4 24.Qe3 Qg6 25.Kf1 Rh4 26.Ke2 Rf4 27.Rg1 Kh8? 28.Nf3?? Qf6= 29.Rg5?? Ng6 30.Rh5-/+ Rf8 31.Rah1? Rf7 32.R1h2?? Bc8 33.Qb6?? Qe7?? 34.Ng5=+ Rf2 35.Rf2+/- Rf2?? 36.Qf2 Qf6?? 37.Rh7 Kg8 38.Qf6 Bg4 39.Ke3 Be6 40.Qg7 1–0. egomi (1690) – frogan, kurnik, 2011.

5.e5 Qc7 6.Bb2 Ne7 (6...cb4!? 7.Bd3 f6+=) 7.Be2 Ng6 8.b5 Be7 9.0-0 0-0 10.Re1 d5 11.d4 cd4 12.Bd4 Bc5 13.c3 a6 14.a4 ab5 15.Bb5 Ba6 16.Ba6 Ra6 17.Na3 Ba3 18.Ra3 Nd7 Increases the pressure on e5 19.Qe2 Nc5 20.g3 (better is 20.Bc5 Qc5 21.Qa6 Qa3 22.c4=) 20...Na4?? (20...Rfa8 21.c4-/+) 21.Qb5 (better is 21.Qa6 Nc5 22.Bc5 Qc5 23.Rb3+-) 21...Qc4 (better is 21...Rfa8!?-/+) 22.Qc4= dc4 23.Bb6 Rb6 24.Ra4 Rc8 ½–½. Olsarova,T (2230) – Lauterbach,I (2100), ch–Euro Indiv Women, 2011. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

5.e5 d6 6.Bb2 de5 (6...Nd7 7.ed6 Ngf6 8.bc5 bc5 9.Nc3 Bd6 10.Rb1=+) 7.Ne5 a6 8.b5 a5 (8...Nf6 9.ba6 Ba6 10.Ba6 Na6 11.c4=) 9.Bc4 (9.Qh5 Qe7=) 9...Nf6 (9...Qg5 10.Rg1=) 10.Qe2+= Be7 11.Nf7 (11.0-0 0-0+=) 11...Kf7 12.Qe6 Kg6?? (better 12...Ke8 13.Qf7 Kd7 14.Qg7 Qf8=) 13.Bd3 (13.h4 Re8 14.Qf7 Kh6+-) 13...Kh6 14.Qe3 g5 15.h4 Nh5 (15...Kg7 16.hg5 Nbd7+-) 16.hg5 Bg5 17.Qe6 Bf6 18.Bf6 Re8 19.Rh5! Kh5 20.Be2 (20.Bd8?! Re6 21.Kf1 Nd7+-) 20...Kg6 21.Be7 (21.Be7 Kg7 22.Qe5 (22.Bd8?! Re6 23.f3 Nc6 24.Bb6 Nd4 25.Bc5 Ne2=) 22...Kg8 23.Bc4 (23.Bd8?! Re5 24.Bb6 Nd7+-) 23...Bd5 24.Bd5 (24.Bd8 Re5 25.Be2 Nc6=+; worse 24.Qd5 Qd5 25.Bd5 Kg7 26.Ba8 Re7 27.Kf1 Nd7+-) 24...Qd5 25.Qd5 Kg7 26.Qg5 Kh8 27.Qe5 Kg8 28.Qe6 Kg7 29.Bf6 Kf8 30.Bg7 Kg7 31.Qe8+-; 21.Bd8?! Re6 22.Kf1 Nd7=) 1–0. Ossa,Orlando (2285) – Grajales,Rubiel, Torneo OPEN, 2009. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.a3 Bb7)

5.e5 d6 6.Bb5 Bc6 7.Bc6 (7.Nc3 a6 8.Bc6 Nc6 9.bc5 bc5=) 7...Nc6+= 8.ed6 Bd6 (8...cb4 9.Bb2+=) 9.Bb2= Nf6 10.b5 Na5 11.Qe2 c4 12.0-0 0-0 13.Nc3 Nd5 (13...a6 14.d3=) 14.g3 (14.Nd5 ed5 15.Qe3 Re8=) 14...Re8 15.Ne4 f6 (15...a6 16.ba6 Ra6 17.d3=) 16.Nd4 (16.Bc3!? Nc3 17.dc3=) 16...Be5-/+ 17.Bc3 f5 18.Ba5? (better is 18.Nf3!? fe4 19.Ne5 Nc3 20.dc3+=) 18...Bd4-+ (18...ba5?! 19.Nc6 Qc7 20.Nc3 Bc3 21.dc3=) 19.Bc3 e5 (19...fe4?! 20.Bd4 Nf4 21.Qe4 (21.Qc4? Qd4 22.Qd4 Ne2 23.Kg2 Nd4-+) 21...Qd4 22.Qf4 (22.Qd4? Ne2 23.Kg2 Nd4-+) 22...Qf4 23.gf4=) 20.Qc4 (20.Bd4 ed4 (20...fe4?! 21.Bb2+=) 21.Qc4 fe4 22.Qd4 Rc8-+) 20...fe4 (20...Rc8 21.Nf6 gf6 22.Qa2-+) 21.Bd4 ed4 22.Qd4 Nf6 23.Qc4 Qd5 (23...Kh8 24.Rad1-+) 24.Qe2? (better is 24.Qd5!? Nd5 25.f3-+) 24...Rac8-+ 25.Rac1 Rc4 26.a4 Rec8 (26...Ra4 27.c3-+) 27.c3 Ra4 28.f3 (28.Ra1 Ra2 29.Ra2 Qa2-+) 28...ef3 29.Rf3 Re8 30.Qg2 Rae4 0–1. Liebig,Stefan (1680) – Jeurissen,Karel (1995), Bahn–chG Bad Laasphe, 1994. (=1.e4 e6 2.Nf3 c5 3.b4 b6)

5.e5 Be7 6.c3 d6 7.d4 de5 8.Ne5 Nf6 9.Bb5 Kf8 10.bc5 bc5 11.0-0 cd4 12.f4 (12.cd4? Qd5 13.f3 Qb5-+) 12...h5 13.f5 (13.cd4? Qd5 14.Rf2 Qb5-+; 13.Qd4?! Qd4 14.cd4 Ng4=) 13...ef5 14.Bc4 (14.cd4? Qd5 15.Qd2 Qb5-+) 14...Bd5 15.Bd5 Qd5 16.Rf5 Qe4 17.Qf1 Nc6 18.Nc6 Qc6 19.cd4 Rc8 20.Bg5 Qe4 21.Nd2 (21.Bf6? Bf6 22.Rf2 Bd4-+) 21...Qd4 22.Kh1 Rc6 23.Re1 Re6 24.Rd1 Kg8 (24...Ba3? 25.Nc4 Qg4 26.Na3+-) 25.Nf3 Qe4 26.Ra5 Qe2 27.Qe2 Re2 28.Nd4 Re4 29.Nf5 (worse is 29.Ra7 Ng4 30.Be7 Nf2 31.Kg1 Nd1-/+) 29...Kh7 30.Ra7 Rd8 31.Rf1 Rd5 32.h3 (worse is 32.Ne7 Rg5 33.g3 Re2=) 32...Bc5 33.Rf7 Rf5 34.Rf5 Re1 35.Kh2 Bg1 36.Kg3 Kg6 37.Bf6 Kf5 38.Bc3 Ke6 39.Be1 Kf7 40.Bf2 (40.Bf2 h4 41.Kf3+-) 1–0. Olsarova,T (2230) – Canonne,A (2020), Hastings Masters, 2012. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.a3 Bb7

4.bc5 bc5 5.Bb2 d6 6.Be2 Nf6 7.d3 Be7 8.Nbd2 0-0 9.0-0 Bb7 10.Ne1 Nc6= 11.f4 Rb8 12.Qc1 Nd7 13.Nef3 Qc7 14.Re1 d5 15.ed5 ed5 16.Bf1 Qf4-+ 17.g3 Qc7 18.Bg2 Bf6 19.Bf6 Nf6 20.Nf1 d4 21.N1d2 Nb4 22.Nf1 Rfe8 23.N1d2 Re1 24.Ne1 Bg2 25.Ng2 Re8 26.Kf1 Qe5 27.Qd1 h5 28.Nc4 Qf5 29.Kg1 Ng4 30.a3?? Nd5 31.Qf1 Qg5 32.Nd6 Rb8?? 33.Ne4?? Qg6 34.Rb1 Rb1 35.Qb1 Nc3 36.Qb8 Kh7 37.Nc3 dc3 38.Qa7? Qf5-+ 39.Nf4 g5 40.h3 Ne3 (40...gf4 41.hg4 hg4 42.Qc7 fg3 43.Qg3-+) 0–1. vuirweirv (1895) – digoxin (1940), kurnik, 2011.

4.bc5 bc5 5.Nc3 Nc6 6.Bb5 Nd4 7.0-0 Rb8 8.a4 Ne7 9.Ba3 Nec6 10.Bc6 Nc6 11.d4 Ba6 12.Re1 Qa5 13.Ne2 cd4 14.Bf8 Rf8 15.Ned4 Ne7 16.Nb5 Nc8 17.c4 f6 18.Nfd4 g6 19.e5 Bb7 20.Qg4 f5 21.Qh3 Rf7 22.Qa3 Be4 23.Qc5 Qb6 24.Qa3 a6 25.a5+/- Qb7 26.Nd6 Nd6 27.Qd6 Rc8 28.f3 Bd3 29.Ne6 de6 30.Qd3 Rd7 31.Qe3 Rc4 32.Rab1 Rb4 33.Rbd1 Rb5 34.Rd6 Rd6 35.ed6 e5 36.Qd2 Qd5 37.Qh6 Qd6 38.Qh7 Ra5 39.Rc1 Rc5 40.Rb1 Rb5 41.Rc1 Rc5 42.Rb1 Kf8?? 43.h4 Rb5= 44.Rc1 Rb8 45.g3 Rd8 46.Qh8 Kf7 47.Qh7 Kf6 48.h5 Kg5 49.hg6 Qg6?? 50.Qh4 1–0. Orozco,Lu (1945) – Chirivi,Y (2165), ch–Panamerican U20 Girls, Cali COL, 2008.

4.bc5 bc5 5.Nc3 Nc6 6.Bb5 Nd4 7.Ba4 Ba6 (7...Rb8 8.h3+=) 8.d3 Prevents intrusion on c4 8...g6 (8...Qa5 9.Bd2=) 9.0-0 (9.Ne5 Bg7 10.Bf4 Bb5 11.Bb5 Nb5 12.Nb5 Qa5 13.Bd2 Qb5=) 9...Bg7= 10.Bd2 Ne7 (10...Qa5 11.e5 Rd8 12.Re1+=) 11.Rb1 0-0 12.Nd4 cd4 White has a new backward pawn: c2. Black has new doubled pawns: d4+d7 13.Nb5 (13.Ne2 d5+=) 13...d5 14.f3 de4 15.fe4 Nc6 16.Qc1 Rb8 17.Bf4 White threatens to win material: Bf4xb8 (17.Qa3 Bb5 18.Bb5 Qc8=) 17...e5 Black threatens to win material: e5xf4 (better is 17...Bb5 18.Bb5 Rb6=) 18.Bg5?? White lets it slip away (better is 18.Bd2= this is the best way to fight back) 18...Qa5-+ 19.Na7 Qa4 (19...Na7?! 20.Bb3 Nc6 21.Qd2-+) 20.Nc6 Qc6 0–1. Mindeguia Guruceaga,JJ (2120) – Gonzalez de la Torre,S (2290), Pamplona op, 2001. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.bc5 bc5 5.Nc3 Nc6 6.g3 g6 7.Bg2 Bg7 8.0-0 Nge7 9.e5 Rb8 10.d4 Nd4 11.Ne4 0-0 12.Bg5 h6 13.Nf6 Kh8=+ 14.Bf4 Nec6 15.c3 Nf3 16.Qf3 d5 17.Qg4 Ne7 18.Qh4 Ng8 19.Bg5 Qc7 20.Rfe1 Rb2 21.g4 Ba6 22.Rac1 Rfb8-/+ 23.Bh6 Bh6 24.g5 Kg7 25.f4? Be2 26.Re2? Re2-+ 27.Ng4 Bg5! 28.fg5 Rbb2 29.Bf3-/+ Rh2 30.Nh2=+ Qe5 31.Ng4 Qf4 32.Rf1 Qd2 33.a3 0–1. Landriel,M (2270) – Flores,Di (2565), XV PRO AM Open, Villa Martelli ARG, 2008.

4.bc5 bc5 5.g3 Bb7 6.d3 g6 7.Bb2 Nf6 8.Nbd2 Bg7 9.Rb1 Bc6 10.Bg2 d6 11.0-0 e5 12.Nh4 0-0 13.Nc4 Ne8 14.Ne3 Nd7 15.c3 Rb8 16.Qd2 Qa5 17.Ba1 Rb1 18.Rb1 Nb6 19.Rd1 c4 20.dc4 Qc5 21.Qe2 Nf6 22.Nd5 Nc4 23.Bf1 Bd5-/+ 24.ed5 Rc8 25.Ng2 Bh6 26.Ne1 Nb6 27.Bh3 Rc7 28.Bg2 Qc4 29.Qc4 Rc4 30.Nd3 Ra4 31.c4 Nc4 32.f4 Ra2 33.Re1 Ng4 34.fe5 Nce3 35.ed6?? Rg2 36.Kh1 Rh2 37.Kg1 Rg2 38.Kh1 Rd2 39.d7 Bg5 40.Rb1 Rd1 41.Rd1 Nd1 42.Bd4 Nde3 43.d6 Nc4 44.Ba7 Nd6 45.Nc5 Bd8 46.Bb8 Nf2 47.Kg2 Nfe4 0–1. Guijarro Galan,J (2205) – Alvarez Pedraza,A, 34th Open Donostia ESP, 2011. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.b5 Bb7

5.Bb2 a6 (5...Nf6 6.e5 Nh5 7.Na3 a6 8.Bc4 d5 9.ed6 Bd6 10.0-0 0-0; 5...Be4 6.Nc3 Bg6 7.Bd3 a6 8.a4 ab5 9.ab5 Ra1 10.Qa1 d5) 6.Nc3 ab5 7.Bb5 Nc6 8.0-0 Nge7 9.Qe2 Ng6 10.g3 Be7.

5.Nc3 a6 6.Bc4 ab5 7.Nb5 Be4 8.0-0 Nf6 9.a4 Nc6 10.d3 Bf3.

5.Nc3 Qc7 6.Bb2 Nf6 7.Qe2 Be7 (7...d6 8.a4=) 8.g3 (8.e5 Nd5=) 8...0-0 (8...d5 9.d3+=) 9.Bg2 d5 10.e5 (10.d3 de4 11.de4 Nbd7=) 10...Ne4 (10...Nfd7 11.Nb1+=) 11.0-0 (11.Nd1!?=) 11...Nc3 12.Bc3 Nd7 13.d3 a6 14.a4 ab5 15.ab5 Ra1 16.Ra1 Ra8 (16...d4 17.Bb2-/+) 17.Qe1 (17.Ra8 Ba8 18.Ne1 Qd8=) 17...Qb8 (better is 17...d4!? 18.Ra8 Ba8-/+) 18.d4 c4 19.Ra8 Qa8 20.Bb4 Bb4 21.Qb4 Qf8 22.Qa4 f6 (22...Qe8 23.Nd2 Qb8 24.Qa3=) 23.Bh3 (23.ef6 gf6 24.Nd2 Qd6+=) 23...Kf7 (23...f5 24.Ng5 Qe7 25.Ne6 Qe6 26.Qa7+/-) 24.Qa7 Qa8 25.Qa8 Ba8 26.Kf1 Bb7 27.Ke2 Bc8 28.Kd2 Nf8 29.Kc3 Bd7 30.Kb4 Ng6 31.Bg4 Ne7 32.Nd2 Nc8 33.Nb1 Na7 34.Nc3 fe5 35.de5 Ke7 36.f4 Kd8 37.Ne2 Ke7 (37...Bb5 38.Be6 Bc6 39.Nd4+/-) 38.Nd4 g6 39.Bf3 Kf7 40.g4 Ke7 41.f5 (41...ef5 42.Bd5; 41...gf5 42.gf5 ef5 43.Bd5) 42.gf5+/- h6? (better is 42...ef5 43.Bd5 f4+/-) 43.f6+- (43.f6 Kf8 44.Bg4+-) 1–0. Hoiberg,Nina (2265) – Jensen,Vagn (2180), Aarhus Chess Summer Cand, 2002. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

5.Nc3 d6 6.Bb2 Nf6 7.Bd3 Nbd7 8.0-0 Be7 9.Qe2 0-0 10.Rae1 Ng4 11.Nd1 Bf6 12.h3 Nge5 13.Ne5 Ne5 14.Be5 Be5 15.f4 Bd4 16.Kh2 d5 17.ed5 ed5 18.c3 Bf6 19.Nf2 c4 20.Bb1 Re8 21.Qf3 Re1 ½–½. Scacco,Mauro (2100) – Van Den Cruyce,Els (1980), SI–2006–0-00061, 2006. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

5.d3 a6 6.Nc3 Be7 7.Be2 ab5 8.Nb5 Nc6 9.0-0 d6 10.a4 Nf6.

5.d3 d6 6.Bb2 Nf6 7.Be2 Nbd7 8.0-0 Be7 9.Nbd2 0-0 10.Ne1 (10.Nc4 Qc7=) 10...Ne8 (10...a6 11.ba6 Ra6 12.Nef3=) 11.f4 (11.a4 a6=) 11...Bf6 (11...Nef6 12.h3=) 12.Bf6 (12.c3 a6=) 12...Qf6 13.Nb3 (13.Nc4 d5 14.e5 Qh6+=) 13...Qh6 14.g4 (14.Qd2 a6+=) 14...f6 (14...Qh3 15.Ng2 c4 16.Rf3 Qg4 17.Rg3 Qg3 18.hg3 cb3 19.cb3+/-) 15.Ng2 Nc7 16.a4 e5 (16...a6 17.c4+=) 17.f5 White gains space 17...d5 Black threatens to win material: d5xe4 18.Bf3 Rfd8 (18...d4 19.Be2+=) 19.Qe2 d4 Black wins space 20.h4 (20.Qd2!?=) 20...a6-/+ 21.ba6 Ba6 Black has a new backward pawn: b6 22.Qf2 (22.Qd2!?+= looks like a viable alternative) 22...c4-/+ 23.Nc1 b5 24.Qg3 Qd2 25.g5 Rf8 26.ab5+= Bb5 27.Ra8 Na8 28.Qf2 Qf2 29.Rf2 c3 Black has a new strong pawn: c3 30.Nb3 Ba4 31.Bd1 Rb8 32.Ne1 Nc7 33.Kf1 Na6 34.Ke2 Bb3-/+ 35.cb3 Ndc5 36.Kf3 Nb4-+ 37.Bc2 Ra8 38.Ke2? Ra2 39.Kd1 Ra1 40.Ke2 Re1! Deflection: f2 41.Ke1 Ncd3 42.Bd3 Nd3 43.Ke2 Nf2 44.Kf2 0–1. Cirabisi,Federico (2120) – Di Paolo,Raffaele (2275), Genova op1, 2001. (=1.e4 e6 2.Nf3 c5 3.b4 b6)

5.d3 Be7 6.Nc3 Nf6 7.Be2 a6 8.e5 Nd5 9.Nd5 ed5 10.c4 0-0.

5.d3 Qf6 6.c3 a6 7.Bg5 Qg6 8.Na3 Nh6 9.Bh4 Ng4 10.h3 Nf6.

5.d3 Nf6 6.e5 Nd5 7.c4 Nc7 8.Nc3 a6 9.Be2 ab5 10.cb5 d6.

5.Bd3 c4 6.Bc4 Be4 7.Nc3 Bb7 8.d4 (better is 8.0-0!?+=) 8...Qc7+= 9.Qd3 Bb4 (9...Bf3 10.gf3 Nf6 11.d5+=) 10.Bd2= Nf6 11.0-0 0-0 12.Ng5?? (12.Nd1!? Be4 13.Qb3+=) 12...h6?? (better is 12...Rc8 13.Nce4 Ne4 14.Ne4 Qc4 15.Bb4 Qb4-+) 13.Nce4-/+ Ne4 14.Ne4 Be4 15.Qe4 d5 16.Bd5+= ed5 17.Qd5 Bd2 18.Qa8 Bc3 19.Rad1 Rd8 20.Qe4 Bb4 21.f4 Nd7 22.Rb1 Nf6 23.Qe5 Bd6 24.Qf5 Qc4 25.Rbd1 Nd5 26.Rf3 Qe2 27.Qd5?? Qd1-+ 28.Rf1 Qc2 29.f5 Be7 30.Qb7 Bf6 31.d5 Qc5 32.Kh1 Qd5 33.Qa7 Qb5 34.Rc1 Qc5! 35.Rb1 Qc2 36.Qb6 Rd1 37.Rd1 Qd1 38.Qg1 Qg1 (38...Qg1 39.Kg1 g6-+) 0–1. Katsimihas,Konstantinos (1810) – Drakopoulos,Anastasios (2115), Ikaros op Athens, 1997. (=1.e4 e6 2.Nf3 c5 3.b4 b6)

5.e5 d6 6.Bb2 Nd7 7.d4 cd4 8.ed6 Bd6 9.Nd4 Qc7 10.Nd2 Ngf6 (10...Bh2 11.N4f3 Be5 12.Ne5 Ne5 13.f4=) 11.Be2 Rd8 12.Bf3 Ne5 13.Bb7 Qb7 14.0-0 0-0 15.Qe2 Ng6 (better is 15...Qc7+=) 16.Nc6+/- Rd7 17.Bf6 gf6 18.Ne4 Kg7 19.Qf3 f5 20.Qc3 f6 21.Ng5 Re8 22.Rfe1 Ne5 23.f4 Bc5 24.Kh1 Nc6 25.Re6 Bd4 26.Qh3 (26.bc6?? Bc3 27.Rb1 Qc8 28.cd7 Qd7 29.Re8 Qe8-+) 26...fg5? (26...Rh8 27.bc6 Ba1+/-) 27.Qh6+- Kf7 28.Re8 Ke8 29.bc6 Ba1 30.Qh5 1–0. Permuy Lorenzo (2375) – Fischer Nielsen (2215), Calvia op 2nd, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

5.e5 d6 6.ed6 Bd6 7.Bb2 Nf6 8.Be2 0-0 9.0-0 Nbd7 10.d3 Qc7 11.Nbd2 Ne5 12.h3 Rad8 13.Rb1 Nfd7 14.Qe1 Ng6 15.Nc4 Be7 16.Bd1 Bf6 17.Qe3 Bb2 18.Rb2 Nf6 19.Nfe5 Nd5 20.Qg3 Ne5 21.Qe5 Qe5 22.Ne5 f6 23.Nc4 Nf4 24.Ne3 Rfe8 25.Kh2 e5 26.f3 g6 27.a3 Kg7 28.Re1 Ne6 29.Be2 Nd4 30.Bf1 h5 31.a4 Bf3 (31...h4!?+=) 32.c3= Bb7 33.cd4 Rd4 34.a5 Ra4 (34...ba5 35.Ra2) 35.Nc4 Re6 36.Be2 f5 37.ab6 ab6 38.Bd1 Ra1 39.Rbe2 e4 40.de4 fe4 41.Bb3 (better is 41.Rd2!? Re7 42.Re3+-) 41...Re1+= 42.Re1 Rf6? (better is 42...Bd5+=) 43.Rd1+- Bc8 44.Rd6 Rd6 45.Nd6 Bd7 46.Kg3 Kf6 47.Kf4 Ke7 48.Ke5 e3 49.Bc4 h4 50.Be2 Be6 51.Nc4 Bc4 52.Bc4 Kd7 53.Ke4 Kd6 54.Ke3 Ke5 55.Bg8 g5 56.Ba2 Kf5 57.Kf3 Ke5 58.Kg4 Kd4 59.Kg5 c4 60.Kh4 (60.Kh4 c3 61.Bb1+-) 1–0. Dvurechenskij,Vladimir (2155) – Beliaev,Vitaly (2070), Lipetsk Region–ch, 2007. (=1.e4 c5 2.Nf3 e6 3.b4 b6)

4.bc5 bc5

5.Ba3 Nf6 6.e5 Nd5 7.c4 Nf4 8.g3 Ng6 9.Bg2 Bb7 10.Bb2 Be7 11.0-0 Nc6 12.d4 cd4 13.Nd4 0-0 14.Nb5 Qb6 15.N1c3 (15.Qd7 Rfd8 16.Qc7 Qa6 17.Bc6 Bc6-+ (17...Qc6?! 18.Qc6 Bc6 19.Re1=)) 15...Rab8 (worse is 15...Nge5 16.Na4 Qa6 17.Nc7 Qc4 18.Rc1 Qa2 19.Be5 Ne5 20.Bb7+=) 16.Na4 Qd8 17.Nd6 Ba8 18.Re1 f6 19.ef6 Bf6 20.Bf6 Qf6 21.Ne4 Qd4 22.Qd4 Nd4 23.Rad1 e5 24.Nac5 Bc6 25.a4 Rb2 26.Nd3 Re2 (better is 26...Rc2!?+=) 27.Re2+= Ne2 28.Kf1 Be4 29.Be4 Nc3 30.Bd5 Nd5 31.cd5 d6 32.Ke2 a5 33.Ke3 Ne7 34.Nb2 Nf5 35.Ke4 Nd4 36.f4+/- Ne2 37.Kd3 Rb8? 38.Ke2?? Rb2= 39.Rd2 Rb4 40.fe5 Re4 41.Kd3 Re5 42.Kc4 Kf7 43.Kb5 Re3 44.Ka5 Rb3 45.Rd4 g5 46.Rb4 Rd3 47.Kb6 Rd5 48.a5 Rd2 49.a6 Rh2 50.a7 Ra2 51.Kb7 Ke6 52.a8Q Ra8 53.Ka8 d5 54.Rb1 Kf5 55.Kb7 Kg4 56.Rb3 h5 57.Kc6 h4 58.gh4 Kh4?? 59.Kd5 g4 60.Ke4 g3 61.Kf3 Kh3 62.Kf4 1–0. Mose,Greg – Cooper,W, East Lansing–ch MI op–B, 1991. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.Na3 Bb7+= 6.e5 Ne7 7.h4 (7.Rb1!? Be4 8.Bb5+=) 7...Nf5 8.Bd3 Bd5 9.c4 Bf3 10.Qf3 Nc6 11.Bb2 Nfd4 12.Bd4 cd4 13.Be4 Rc8 14.Bc6 dc6 15.Nc2 d3 16.Ne3 Qd4 17.0-0 Qe5 18.Rfe1 Bd6 19.Ng4 Qd4 20.c5 Bc5 21.Rac1 Bd6 22.Re4 Qb2 23.Rce1 (better is 23.Ree1!?-/+) 23...0-0-+ (23...Qd2?! 24.Rd1 Qa5 25.Rd3-/+) 24.Qd3 Rfd8 25.Qc4 Qd2 26.h5 (26.g3 c5-+) 26...Qd5 27.Qe2 (27.Ne5 Be5 28.Qd5 Rd5 29.Re5 c5-+) 27...f5 (27...Qh5?? 28.Nf6 gf6 29.Qh5+-) 28.Re6 fg4 29.Qg4 Bf8 (29...Qa2?! 30.Rd6 Rf8 31.f3+=) 30.h6 Rc7 31.R6e5 Qa2 32.Qg5 (32.Qh4 Rb8-+) 32...Rb8 33.Re8 (33.hg7 Rg7 34.Qf5 Rg6-+) 33...Re8 34.Re8 Qa1 (34...Qa1 35.Kh2 Rf7 36.hg7 Qg7-+) 0–1. Williams,Simon K (2460) – Delchev,Aleksander (2645), London ENG, 5th Classic Open, 2013. (=1.e4 c5 2.Nf3+= e6 3.b4?? b6 4.bc5+= bc5)

5.Bb2 Bb7 6.Nc3 Nc6 7.Rb1 Rb8 8.e5 (8.Bd3 Nf6=) 8...a6 (8...Nge7 9.Bc4=) 9.Ne4 Nd4 10.Bd3 Be4 11.Be4 Nf3 12.Bf3 g6 13.0-0 Bg7 14.Bc3 Ne7 15.Qe2 Qc7 16.Qa6 0-0 17.Rb7 Rb7 18.Qb7 (18.Bb7 Not 18...Rb8 19.Rb1 Be5 20.Be5 Qe5=) 18...Qb7 19.Bb7 Rb8 (19...Nd5 20.Ba1 Nb4 21.a4 Nc2 22.Bc3+=) 20.Be4 (better is 20.Rb1!? Nd5 21.a4 Nc3 22.dc3 Be5 23.a5+=) 20...Nd5= 21.Bd5 ed5 22.d4 Rc8 23.Ra1 cd4 24.Bd4 d6 25.f4 de5 26.fe5 Rc4 27.c3 Ra4 28.Rb1 h5 (28...Ra2?? 29.Rb8 Bf8 30.Bc5+-) 29.Rb8 Kh7 30.Rb7 Ra2 31.Rf7+/- Kg8 32.Rd7 Ra5?? 33.Kf2 Kf8 34.Kf3 Bh6?? 35.e6 Bg5 36.Rf7 Ke8 37.Bf6 1–0. Rossi,Carlo (2435) – Straub,Peter (2080), Padova op, 2000. (=1.e4 (B40: Sicilian: 2...e6, Unusual lines, C00: French: Unusual White 2nd moves) 1...c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bb5 Qb6 6.Na3+- a6 7.Ba4 Nc6 (7...Nf6 8.Rb1 Qa5 9.c3 Ne4 10.Nc4+=) 8.e5 (8.Rb1 Qc7 9.0-0 Nf6+-) 8...Na5 9.Rb1 Qc7 10.0-0 Ne7 11.d3 Nec6 12.Qe1 (12.Bc6 Nc6 13.Nc4+-) 12...g6? (12...Bb7!?+=) 13.Qc3 (13.Bc6 Nc6 14.Nc4 Nb4+-) 13...Nb7 (better 13...Rb8!?+-) 14.Nc4 Bg7 15.Rb6 (15.Bc6 Qc6 16.Rb6 Qc7+-) 15...Nca5 (15...Nb4!? 16.Rb4 cb4 17.Qb4 Rb8+-) 16.Nd6+- (16.Na5?! Qb6 17.Nc4 Qb4=) 16...Nd6 17.Qa5 (better 17.ed6 Bc3 18.dc7+-) 17...Nb7?? (better 17...Rb8 18.Ra6 Qa5 19.Ra5 Nf5+-) 18.Re6!! Kd8 (18...fe6 19.Qc7 Discovered attack) 19.Bg5 f6 20.ef6 Qa5 21.fg7 Kc7 22.Bf4 (22.Bf4 d6 23.Re7 Bd7 24.Rd7 (24.gh8N? Qa4 25.Bd6 Nd6-+) 24...Kb6 25.Rb1 Qb5 26.Bb5 ab5 27.gh8R Rh8 28.Bd6+-) 1–0. Arcos Facio,M (2160) – Marrero,Javier (1835), ch–URU Semi–Final (1), 2017. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bb5 Bb7 6.Nc3 Nc6 7.0-0 d6 8.d4 cd4 9.Nd4 Qc7 10.Nd5! ed5 (better is 10...Qd7!?+/-) 11.ed5+- a6 12.Re1 (worse is 12.dc6 Bc8 13.Re1 Be7+-) 12...Nge7 13.Bc6 Bc6 14.Nc6 Kd7 (14...h5 15.Rb1 f6 16.Qe2+-) 15.Ne7 Be7 16.Qg4 f5 (16...Kd8 17.Qg7 Rf8 18.Bh6+-) 17.Qf5 (better is 17.Re7!? Kd8 18.Qg7 Qe7+-) 17...Kd8 18.Re7! Ke7 19.Bg5 Ke8 20.Re1 (20.Re1 Qe7 21.Re7 Kd8 22.Qd7) 1–0. Flumbort,Andras – Reiss,Attila (2220), Eger Agria op, 1996. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bb5 Bb7 6.Qe2 Nc6 7.c3 a6 8.Ba4 Nf6 9.0-0 Be7 10.d4 cd4 11.cd4 d5 12.Ne5 Qb6? (better is 12...Rc8!? 13.Bc6 Bc6 14.Qa6 Ba8+=) 13.Qb2+- Qc7 (13...Qb2 14.Bb2 (14.Bc6 Bc6 15.Bb2 Bb5-/+) 14...Kf8 15.Nc6 Bc6 16.Bc6+-) 14.Qb7! Qb7 15.Bc6 Qc6 16.Nc6 Ne4 17.f3 Nd6 18.Ne7 Ke7 19.Ba3 1–0. Christ,J – Doktor,K, FRG–Cup corr, 1977. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bb5 Nc6 6.Bc6 dc6 7.Qe2 Nf6 8.0-0 Be7 9.c4 0-0 10.d3 Qc7 11.Bb2 Rd8 12.Rd1 Nd7 13.e5 Nf8 14.Nbd2 Ba6 15.Ne4 Rab8 16.Bc3 Rb7 17.Qc2 Qc8 18.Qa4 Rb8 19.Qa5 Nd7 20.Nd6 Bd6 21.ed6 f6 22.Nd2 Rb6 23.Ne4 Qb8 24.Qa3 Rc8 (better is 24...Bb7!?+/-) 25.Ba5+- Rb2 26.Bc7 Qb7 27.Nc5 Nc5 28.Qc5 Rc7 29.dc7 Qc7 30.Qa3 (30.Rdb1 Rb1 31.Rb1 Bc8+-) 30...Qb6 31.Rf1 c5 32.Qa4 h6 33.Rae1 e5 34.Re3 Bb7 35.Qe8 Kh7 36.Rg3 Qc7 37.Qg6 Kh8 38.h3 Ra2 39.f4 ef4= 40.Rf4 Rg2+= 41.Rg2 Bg2 42.Rf2 Bc6 43.Qf5 Qd6 44.Kf1 Bd7 45.Qf3 a5 46.h4 a4 47.Qd5 Bh3 48.Ke2 Qb6 49.Qa8 Kh7 50.Qa4 Qb2 51.Ke1 Qd4 52.Qa3 Bg4 53.Qc1 Qd3 54.Qc2 Bf5 55.Qd3 Bd3 56.Rf4 g5 57.Rf6 Bc4 58.Rc6 gh4 59.Rc5 Bd3 ½–½. Cibej,Marjan (1875) – Suc,Timothy (1900), SLO–chT2 West, 2008. (=1.e4 c5 2.b4 b6 3.Nf3 e6 4.bc5 bc5)

5.Bb5 Nf6 6.Nc3 Bb7 7.d3 Be7 8.0-0 0-0 9.Rb1 d5 10.Qe2 Nc6 11.Ba4 de4 12.de4 (12.Rb7 ef3 13.Qf3 Nd4=) 12...Qc8 13.Re1 (13.Be3 Ba6 14.Bb5 Bb5 15.Rb5 Nb4=) 13...Nd4 14.Qe3 Rd8 15.Ne5 Rb8 16.Ba3 (16.f4 c4 17.Qf2 Bd6=) 16...Qc7 17.f4 Qa5 18.Nc4 Qa6 19.Bb3 Nc2! 20.Bc2 Qc4 Pawn e4, live or die! 21.Qf3 (better 21.Red1!? Rd4 22.e5 Rd1 23.Rd1-/+) 21...Rd2-+ 22.Rec1 Qa6 (22...Qd4!? 23.Kh1-+) 23.Rb3 Bf8 24.Bb2? (24.Qe3 Rbd8 25.Bb2-+) 24...c4-+ 25.Rb5 Rbd8 26.Rg5?? (26.a4-+) 26...Qb6 27.Kh1 Qb2 (27...Qb2 28.Rg1 Qc2-+) 0-1. Schweitzer,O (2075) - Valles,M (2365), TCh-SUI, 2019. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bb5 Nf6 6.Nc3 Bb7 7.Qe2 Be7 8.0-0 0-0 9.Rb1 Qc7 10.Re1 d6 11.e5 Ng4 12.h3 Ne5 13.Ne5 de5 14.Qe5 Bd6 15.Qh5 a6 16.Bd3 g6 17.Qh4 Be7 18.Qg3 Qg3 19.fg3 Ra7 20.Ba3 Nd7 21.Be4 Be4 22.Re4 Bd6 23.g4 Rc8 24.Ra4 Be5 25.Ne4 h6 26.g5 hg5 27.Ng5 Rc6 28.Nf3 Bf6 29.Rc4 Rac7 30.Re4 Rb6 31.Rb3 Rcb7 32.Rc4 Rb5 33.Ra4 Rb3 34.ab3 Rb6 35.Rc4 Rb5 36.Kf2 e5 37.g4 Ra5 38.Ra4 Ra4 39.ba4 e4 40.Ne1 Bd4 41.Ke2 f5 42.d3 Nb6 43.gf5 gf5 44.de4 (44.a5!? Nd5 45.Ng2-/+) 44...fe4-+ 45.c3 Bg1 (better is 45...Bc3 46.Bc5 Na4-+) 46.Kf1= Nc4 47.Kg1 Na3 48.Kf2 Nc4 49.Kg3 Nb2 50.a5 Nd1 51.c4 Nb2 52.Kf4 Nc4 53.Ke4 Na5 54.Kd5 c4 55.Kc5 Kg7 ½–½. Prudnikova,Ekaterina (2165) – Komiagina,Maria (2285), RUS–ch (Women) Higher League, 2007. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.Bb5 Nf6 6.e5 Nd5 7.0-0 Bb7 8.c4 Nb6 9.d3 Be7 10.Nc3 a6 11.Ba4 Na4 12.Na4 (worse is 12.Qa4 Bf3 13.gf3 Nc6-/+) 12...Bc6 13.Rb1 Ba4 14.Qa4 Nc6 15.Bf4 0-0 16.Rb7 g5 17.Bg3 g4 18.Nd2 Bh4 19.Qd1 h5 20.Ne4 f5 (20...Bg3 21.Nf6 (worse is 21.Ng3 Ne5 22.Qe2 Rb8+=) 21...Kg7 22.Rd7 Bh2 23.Kh2+-) 21.ef6+- Bf6 22.h3 (22.Nc5 Rf7+-) 22...Bd4 23.hg4 h4 24.Bd6 Rf7 25.g5 Rh7 26.Qg4 Qe8 (26...Na5 27.Rc7 Nc6 28.Rb1+-) 27.Kh2 (27.Bc5 Bh8+-) 27...Qg6 28.f4 (28.Bc5 Bc5 29.Nc5 Ne5+-) 28...Qf5? (better is 28...Na5 29.Rc7 Nc4 30.Nf6 Bf6 31.dc4 Bd4+/-) 29.Qf5+- ef5 30.Nc5 h3 31.Re1 (31.Nd7?! hg2 32.Kg2 Rd8 33.Nf6 Bf6 34.Rh7 Kh7 35.Rh1 Kg8+/-; 31.Rd7?! Rd7 32.Nd7 Rd8 33.gh3 Rd7+/-) 31...Bf2 32.Re2 Bg3 (32...Bc5 33.Bc5 hg2 34.Kg2+-) 33.Kh1 Nd4 34.Reb2 Re8 35.Rb8 Kf7 36.g6! Kg6 37.Re8 hg2 38.Kg2 Rh2 39.Kg3 Rb2 40.Be5 Ne2 41.Kf2 Nd4 42.Ke3 Nc2 43.Kd2 Ra2 44.Nd7 Na1 45.Kc3 Kf7 46.Rh8 a5 47.Rh7 Ke8 48.Bc7 Rc2 49.Kd4 Nb3 50.Kd5 (50.Kd5 Re2 51.Nf6 Kf8 52.Bd6 Re7 53.Be7) 1–0. Kordonowski,Frank (1995) – Salzmann,Juergen (1985), Ruhrgebiet VL1, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.c3 Bb7 6.Bd3 Qc7 7.Qe2 Nc6 8.Na3 a6 9.Rb1 Na5 10.Nc4 Nc4 11.Bc4 d6 12.0-0 Nf6 13.Ng5 (13.d3 d5 14.ed5 Nd5+=) 13...Qd7 (13...h6 14.Nh3 Ne4 15.f3-/+) 14.f4 h6 15.Nf7 Qf7 (15...Kf7?! 16.f5 Qc7 17.Be6 Ke8 18.d3=) 16.f5 Bc8 (16...Ne4? 17.fe6 Qc7 18.Qh5 Kd8 19.Bd5+-; 16...Be4?! 17.d3 Bc6 18.Re1-/+) 17.e5 d5 18.fe6 Qe6 (18...Be6? 19.ef6 Qd7 20.Rb7 dc4 21.f7 (worse is 21.Rd7 Kd7 22.d4 cd4+-) 21...Kd8 22.Rd7 Kd7 23.d4+-) 19.ef6 dc4 20.Qh5 Kd8 21.d4 gf6 22.dc5 Qe5 (better is 22...Bd7!?-+) 23.Qf3 Bc5 24.Kh1 Ra7 25.Bf4 Qe6 26.Rfe1 Qf7? (better is 26...Bb7 27.Re6 Bf3 28.gf3 Kd7 29.Rf6 Rf8 30.Rd1 Ke8 31.Rf8 Bf8+-) 27.Qc6+- Re8 28.Re8 (better is 28.Red1 Bd6 29.Rd6 Ke7 30.Re1 Kf8 31.Bh6 Kg8 32.Re8 Kh7 33.Qe4 Qg6 34.Rh8 Kh8 35.Qg6 Rd7 36.Rd7 Bd7 37.Qg7) 28...Qe8 29.Qc5 Qf7 (29...Qe4 30.Rd1 Rd7 31.Qc7 Ke7 32.Bd6 Kf7 33.Qc8+-) 30.Rb8 (better is 30.Rd1 Bd7 31.Qb6 Ke8 32.Qb8 Ke7 33.Re1 Be6 34.Qa7 Kf8 35.Qa6 Qd7 36.Qe6 Qe6 37.Re6 Kf7+-) 30...Rc7 31.Qd6 Qd7 (31...Ke8 32.Qc7 Qc7 33.Bc7 Kd7+-) 32.Qf8 Qe8 1–0. Katona,Sandor (2020) – Palotas,Peter (1905), Budapest FS02 Elo–B, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.c3 Bb7 6.Bd3 Nf6 7.Qe2 (7.e5 Ng4 8.Be2 Nc6=) 7...Be7 8.0-0 0-0 9.Bc2 Ba6 10.d3 d5 11.e5 Nfd7 12.Rd1 Nc6 13.Qe1 Qc7 Can e5 get defended? 14.Bf4 d4 15.Na3 Qa5 16.Nc4 (16.Qe4 Bb7 17.Rdb1 Nb6-/+ (17...Qa3? 18.Rb7 Ndb8 19.cd4 cd4 20.Nd4 Nd4 21.Qd4+-; 17...Qc3?! 18.Bd2 Nce5 19.Qb7 Nf3 20.gf3 Qd2 21.Qd7=+)) 16...Qc3 17.Qe2 Nb4 18.Bb3 Nd5?? (better 18...Bc4 19.dc4 Rfd8=+) 19.Bd2+- N7b6 (19...Bc4 20.dc4 (20.Bc3?! Nc3 21.Qc2 Nd1 22.Bc4 Nc3=) 20...Nf4 21.Bf4+-) 20.Bc3 Nc3 21.Qc2 Nd1 22.Rd1 Nd5 23.Nfd2 (23.Na5 Nc3 24.Nc6 Rfe8+-) 23...Nc3 24.Re1 Bb7 25.Nd6 Bc6 (25...Bd6 26.ed6 Rac8 27.Qb2+-) 26.N2e4 (better 26.Nb1 Nb5+-) 26...Ne4 (26...Be4 27.Ne4 (27.Re4?! Ne4 28.de4 Bd6 29.ed6 Rfc8+-) 27...Ne4 28.Re4+-) 27.Ne4 (better 27.de4 Rfc8 28.Qc5 d3+-) 27...Be4 28.Re4 Rfb8 29.g3 a5 (29...Rb7 30.f4 Rab8 31.Qf2+-) 30.Qe2 (30.Bc4 Ra7+-) 30...a4 31.Bc4 Rb1 32.Kg2 Rab8 33.Qg4 Bf8 (33...R1b7+-) 34.Rf4 R1b6 35.Qf3 R6b7 (35...Be7 36.Rf7 R8b7+-) 36.Rf7! Rf7 (36...Rf7 37.Be6 Pinning (37.Be6 Decoy)) 37.Be6 (37.Be6 Be7 38.Qf7 Kh8 39.Qe7+-) 1-0. Abdrlauf,Elham (2335) - Perdomo,C (2300), Titled Tuesday, 2021. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.c3 Bb7 6.e5 Ne7 7.d4 cd4 8.cd4 Nd5 (8...Bf3 9.Qf3 Nbc6 10.Be3+=) 9.Be2 Be7 10.0-0 Nc6 11.Na3 d6 12.Nc4 de5 13.Nce5 0-0 14.Nc6 Bc6 15.Ne5 Bb7 16.Bd3 Nb4 17.Bb1 Qd5 18.f3 Bc5 19.Be3 Rad8 20.a3 (better is 20.dc5!? Qe5 21.Qe1+=) 20...Qe5!-+ 21.de5 Be3 (21...Rd1? 22.Bc5 Rf1 23.Kf1+-) 22.Kh1 Rd1 23.Rd1 Nd5 24.Be4 Bf4 25.Bd5 ed5 26.Rab1 Ba8 27.Re1 d4 28.Rbd1 Rd8 29.Kg1 (29.Rd3-+) 29...Rd5 (29...d3 30.g3 d2 31.gf4 de1R 32.Re1 Bf3 33.Rc1-+) 30.e6?? (better is 30.Rb1 h6 31.Rb8 Kh7 32.Ra8=) 30...fe6 31.Re6 Be3 32.Kf1 Kf7 33.Ra6 d3 0–1. Macicek,Jan1 (2005) – Mikulec,Jiri (1985), CZE–chT2f, 2006. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5)

5.c3 Nc6 6.d4 cd4 7.cd4 Nf6 8.e5 Nd5 9.Bd3 d6 10.0-0 Qc7 11.Bb5 (11.Re1 de5 12.Be4 Bb4=) 11...Bd7 12.ed6 (12.Re1!?=) 12...Bd6=+ 13.Nbd2 (13.Re1!?=+) 13...Nc3-/+ 14.Qb3 Nb5 15.Qb5 Nd4! 16.Nd4?? (better 16.Qg5 Nf3 17.Nf3-/+) 16...Bb5-+ 17.Nb5 Bh2 18.Kh1 Qd7 19.a4 (19.Kh2 Qb5 20.Kg1 0-0-+) 19...Bf4 (better 19...a6!? 20.Nc3 Be5 21.Ra3-+) 20.Ne4 (20.Nc4 Bb8 21.Ba3 Qd5 22.Nbd6 Ke7 23.Ne4 Ke8 24.Ned6 Kd7-+) 20...Bc1 (better 20...Be5 21.Nbd6 Kf8 22.Ra3-+) 21.Ned6 Ke7 (21...Kf8 22.Rfc1 Rd8 23.Rc7 Qc7 24.Nc7 Rd6 25.Rc1-+) 22.Rac1 a6 23.Rc7 ab5 24.Rd7 Kd7 25.Nb5 Ra4 26.Rd1 Ke7 27.Rc1 (27.Kh2 Rb8 28.Nc3 Rc4-+) 27...Rd8 (better 27...Rb8 28.Rc5 Ra5 29.Rc7 Kd8 30.Rf7 Rbb5 31.Kg1 Rb1 32.Kh2 Rh5 33.Kg3 Rg5 34.Kh2-+) 28.Kh2 Rb4 29.Na7 Ke8 30.Rc7 (30.Nc6 Rc8 31.Nb4 Rc1-+) 30...Rb2 31.Nc6 Rdd2 32.Re7 Kf8 33.Rc7 g6 34.Kg3 (34.Rc8 Kg7 35.Rb8 Rf2 36.Rb2 Rb2-+) 34...Rf2 35.Ne5 Rg2 36.Kh3 (36.Kf3 Rbf2 37.Ke3 h5 38.Nd7 Ke7 39.Nb8 Kf6 40.Nd7 Kg5-+) 36...Rgf2 37.Kg3 Kg7 38.Ng4 (38.Nd3 Rfc2-+) 38...Rf5 39.Ne3 (39.Rc3 Rfb5-+) 39…Rb3 0-1. Johanssc (2475) - opperwezen (2775), Lichess Titled Arena, lichess.org, 2018. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.c3 d5 6.e5 Nc6 7.d4 cd4 8.cd4 Bb4 9.Bd2 Bd2 10.Nbd2 Nge7 11.Nb3 0-0 12.Bd3 f6 13.ef6 Rf6 14.0-0 Qd6 15.Qe2 Ng6 16.Ng5 h6 17.Bg6 Rg6 18.Nf3 Rg4 19.Rfe1 a5 20.Rad1 Re4 21.Qc2 Nb4 22.Qc5 (better is 22.Qd2!?+/-) 22...Re1 23.Re1 Qc5 24.Nc5 Na2 25.Ne6 (better is 25.Re3!?+=) 25...Be6-/+ 26.Re6 a4 27.Re1 a3 28.Ra1 Nc3 29.Kf1 a2 30.Nd2 (30.Ke1 Rb8 31.Kd2-+) 30...Rb8 31.Ke1 Rb1 (better is 31...Rb2 32.f3-+) 32.Nb1 ab1Q (32...ab1N?! 33.g4+=; worse is 32...ab1B 33.Ra5+/-) 33.Rb1 Nb1 34.f4 Kf7 35.Ke2 Ke6 36.g4 Nc3 37.Ke3 Nb5 38.h4?! (38.Kd3 g6-+) 38...Kf6 (38...h5 39.gh5 Na3 40.Kd3-+) 39.h5 Nc7 40.Kf3? Kf7 41.Kf2 Ne8 42.Ke2 Nf6 43.Kf3 Ne4 44.Ke3 Ke6 45.Kf3 Kd6 46.f5 Ke7 47.Ke3 Kf6 0–1. Staib,Christian – Daur,Wolfgang (1750), Stuttgart–chB, 2004. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5)

5.c3 Nf6 6.Bd3 Be7 (6...d5 7.e5 Nfd7 8.Bb5=) 7.0-0 (7.e5 Nd5+=) 7...0-0 (7...d5 8.e5 Nfd7 9.Re1=) 8.Re1 (8.e5 Nd5+=) 8...d5= 9.e5 Nfd7 10.Bc2 Nc6 11.d4 cd4 (11...Ba6 12.Nbd2=) 12.cd4 (12.Qd3 g6 13.Bh6 Re8 14.cd4 Nb4=) 12...Ba6 (12...Nb4 13.Ba3=) 13.Ba3 (13.Bh7!? Kh7 14.Qc2 Kg8 15.Qc6+=) 13...Nb4= 14.Bb4 Bb4 15.Re3 Nb6 16.Nbd2 Rc8 (better 16...Be7!?=) 17.Bh7+/- Kh7 18.Qb1 Kg8 19.Qb4 Rc2 20.Rc3 Rc3 21.Qc3 Qe7 22.Qe3 Rc8 23.Qf4 (23.Nb3 Qa3+/-) 23...Rc2 24.g3 (24.Ne1 Rb2+/-) 24...Bd3 (24...Na4 25.Kg2+=) 25.Ne1+/- Rc3 26.Nd3 Rd3 27.Nf3 Rc3 28.Kg2 Rc2 29.Rb1 Ra2 30.Ng5 Rc2?? (better 30...f6 31.ef6 gf6 32.Qb8 Kg7+/-) 31.Qh4+- (31.Qh4 Qd8 32.Qh7 Kf8 33.Ne6 (worse 33.Qc2 Qg5 34.Qc7 Ke8+-) 33...fe6 34.Qh8 (worse 34.Qc2 Kg8+-) 34...Ke7 35.Qg7 Ke8 36.Qg6 Kd7 37.Qc2+-) 1-0. Leszko,Bence (2260) - Blomqvist,E (2535), Titled Tue, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 a6 6.Rb1 Qc7 (6...d5 7.ed5 ed5 8.d4+=) 7.Bc4 Bb7 (7...Nf6 8.Bb2+=) 8.0-0 (8.d3 Nc6+=) 8...d6 (8...Nc6 9.Bb2+=) 9.Re1 (9.Bb2 Nf6+=) 9...Nd7 (9...Nf6 10.d3+=) 10.Bf1 (10.Be2 Ngf6=) 10...Ngf6= 11.d3 (11.Qe2 Be7=) 11...Be7 (11...Rb8 12.a3=) 12.h3 (12.Qd2 Rb8=) 12...h5 (12...Rb8 13.Bg5=) 13.Bf4+= Rc8 (13...Rb8 14.Qd2+=) 14.Qd2 Ne5 (14...Rb8 15.Rb2+=) 15.Ng5 (15.Ne5 de5 16.Be3 c4+=) 15...Bc6 (15...Rb8 16.Be2=) 16.Bh2 (16.Be2 0-0+=) 16...Nfd7 (16...0-0 17.Be2=) 17.Ne2 (17.Be2 Bf6 18.f4 Qd8=) 17...Qd8 (17...0-0 18.f4 Bg5 19.fg5=) 18.f4 (18.Bf4 0-0=) 18...Bg5 19.fg5 g6 (19...0-0 20.Bf4=) 20.c3 c4 21.Nd4 (21.Be5 de5 22.Nc1 Nc5=) 21...cd3 22.Bd3 (22.Be5 de5 23.Nc6 Rc6=) 22...Nd3= 23.Qd3 Nc5 24.Qf3 (24.Nc6 Rc6 25.Qd4 0-0=) 24...0-0 (24...Qg5? 25.Nc6 Nd7 26.Nb4 Qc5 27.Re3+-) 25.h4 (25.Nc6 Rc6 26.Red1 Qe7=) 25...e5 (25...Ba8 26.Re3=+) 26.Nc6= Rc6 27.Rbd1 (27.Rf1 Na4=+) 27...Qb6 (27...Qa5 28.Rd2=+) 28.Kh1 Qb2 (better 28...Na4=+) 29.Rd2?? (29.Re2 Qa3=) 29...Qa3 (better 29...Qd2 30.Re2 Qc1 31.Bg1 Na4-+) 30.Red1 (30.Rf1 Qa4 31.Re1 Qc4=+) 30...Ne6 Attacking the isolated pawn on c3 (30...Na4 31.c4 Nc3 32.Rd3 Rc4 33.Rd6-/+) 31.Rd3= Rfc8 (31...Rb8 32.Rf1 Rb7 33.Qf6=+) 32.Rf1 (32.Qf6 Qa2 (32...Rc3?? 33.Rd6 R3c5 34.Re6+-) 33.Rd6 Rd6 34.Rd6 Qb1 35.Bg1 A) 35...Rc3?? 36.Rd7 (36.Qe5? Rc1 37.Qh2 Qe4 38.Ra6 Nf4-+) 36...Rh3 37.gh3 Qe4 38.Kh2 Qf4 39.Qf4 Nf4 40.Bb6+-; B) 35...Nf4 36.Rd8 Rd8 37.Qd8 Kh7=+) 32...R8c7=+ 33.c4 (33.Qf6 Kh7=+ (33...Qa2?? 34.Rd6 Rc5 35.Rd5 Rd5 36.ed5 Qd5 37.Be5+-; 33...Rc3?! 34.Rd6 Rc1 35.Be5 Rf1 36.Qf1=)) 33...Qc5 (33...Qa2 34.Qf6 Nd4=+ (worse 34...Qc4 35.Rd6 Qf1 36.Qf1 Rd6 37.Be5+-)) 34.Rfd1 Nd4 35.Qf6 Qc4 36.R3d2 (better 36.Be5!? de5 37.Qe5=+) 36...Qe6-/+ 37.Qd8 (37.Bg1 Nb5 38.Re1 Qg4-+) 37...Kg7 38.Bg1 Rc8 39.Qa5 (39.Qf6!? Qf6 40.gf6 Kf6 41.Bd4 ed4 42.Rd4-+) 39...Nb5-+ 40.a4? (40.Re1-+) 40...Nc3 41.Re1 Qg4 42.Bf2 (42.Bh2 Qh4 43.g3 Qg5-+) 42...Ne4 43.Re4 (43.Kg1 Nd2 44.Qd2 Qa4-+) 43...Qe4 44.Kh2 (44.Qd5 Qd5 45.Rd5-+) 44...Qf4 (better 44...Rc5 45.Re2 Qe2-+) 45.Bg3 Qg4 (better 45...Qf5 46.Rd6 Rd6 47.Qe5 Qe5 48.Be5 f6 49.Bd6 fg5 50.hg5 a5-+) 46.Rf2?? (46.Rd6 Rd6 47.Qe5 Kg8 48.Qd6 Qa4 49.Qf6-+) 46...Rc3 47.Be5 de5 48.Qe5 Kg8 49.g3 (49.Qf4 Qf4 50.Rf4 R8c4-+) 49...Qe6 (better 49...Rc2 50.Qf6 Rf2 51.Qf2 Qa4 52.Kg1-+) 50.Qf4 (50.Qe6 fe6 51.Rf6-+) 50...Rc2 51.Kg2 Qd5 52.Kh3 Rf2 (52...Qh1 53.Rh2 Qh2) 53.Qf2 Qf5 (53...Qf5 54.Qf5 gf5-+; 53...Rc1 54.g4 hg4 55.Kg3 Rc3 56.Qe3 Re3 57.Kf2 Qd2 58.Kg1 Re1) 0–1. Maier,C (2390) – Rigopoulos_Tsigkos,Alexandros (2115), European Blitz, 2017. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 a6 6.Bc4 h6 (6...Nc6 7.Rb1+/-) 7.0-0 Nf6 8.e5 Nh7 (8...d5 9.ef6 dc4 10.Ne5 Qf6 11.Nc4+/-) 9.Ne4 (9.Rb1 Nc6+/-) 9...d5 (9...Nc6!? 10.Bb2 Ng5 11.Nfg5 hg5+/-) 10.ed6!+- Bd6 11.Nd6 (11.d4 Nf6 12.Nd6 Qd6 13.dc5 Qc5+-) 11...Qd6 12.Bb2 (12.Ba3 Ng5 13.d4 Qf4 14.Bc5 Nd7+/-) 12...0-0+/- 13.Rb1 (13.Be5 Qe7+/-) 13...Nd7 14.Bc3 (14.Qe2 Bb7+/-) 14...Nhf6 15.Rb3 (15.Qe2 Ra7+/-) 15...Nd5 16.Ba1 (16.Qe2 Rb8+=) 16...a5+= 17.d4 Ba6 18.Nd2 (18.Ba6 Qa6 19.dc5 Rac8+= (19...Nc5? 20.Qd4 f6 21.Qc5+-)) 18...Bc4 19.Nc4 Qa6 20.Ne3 c4 21.Rb1 Rab8 22.Qe2 Rb1 23.Rb1 Rb8?? (better is 23...Ne3 24.fe3 Nf6=) 24.Rb8+- Nb8 25.Nd5 (25.Qc4?! Ne3 26.Qa6 Na6 27.fe3 Nb4+/-; 25.Nc4? Nb6 26.d5 Nc4-+ (26...Qc4?! 27.Qe5 Qg4 28.h3=)) 25...ed5 26.Qe8 Kh7 27.Qb8 a4 28.Bc3 Qc6 (28...Qe6 29.Qb1+-) 29.Qe5 (29.Qb4 h5+-) 29...g6 (29...Qg6 30.Qe2+- (30.Qd5?! Qc2 31.Qa5 a3+-)) 30.Bb4 Qd7 31.Bf8 f5 32.Qe7 Qe7 33.Be7 Kg7 34.Kf1 Kf7 35.Bb4 Kf6 36.Ke2 Ke6 37.Ke3 1–0. Brazina,David (1940) – Stetz,Jan (1665), Karvina CZE, Primator Cup, 2014. (=1.e4 c5 2.b4?? b6?? 3.bc5+/- bc5 4.Nf3 e6)

5.Nc3 Ba6 6.Ba6 Na6 7.Rb1 (7.0-0 Be7+/-) 7...Rb8 8.Bb2 Qa5 9.0-0 Ne7 10.Ne5 Ng6 (10...Nc6!? 11.Nc4 Qc7+/-) 11.Nc4+- Qc7 12.f4 Be7 (12...Bd6!? 13.e5 Be7+-) 13.f5+- Ne5 (13...Rb4 14.Qf3 (worse is 14.fg6 hg6 15.h3 Rc4+/-) 14...Rc4 15.fg6 hg6 16.Qf7 Kd8 17.g3+-) 14.Nb5! Rb5 15.Be5 (15.Ne5? Rb2 16.Rb2 Qe5-+) 15...Rb1 16.Qb1 Qc6 17.Bg7 Rg8 18.f6 Qe4? (18...Bf8 19.Bf8 Kf8+-) 19.Qb5 (19.fe7?! Qc4 20.Qb2 Qh4+/-) 19...Qd4 (19...Qc6 20.Qc6 dc6 21.Rb1+- (21.fe7?! Rg7 22.Rf3 Nb4+=)) 20.Kh1 Nc7 21.Qb8 (21.fe7 Nb5 22.Bd4 Nd4-/+ (22...cd4? 23.Rb1+-)) 21...Bd8 22.Rb1 (22.d3 h5+-) 22...d6 (22...Qc4?? 23.Qd8!! Kd8 24.Rb8) 23.d3 Kd7 (23...d5 24.Nd6 Kd7 25.Nf7 a6+-) 24.h3 (24.Qa7 Bf6 25.Qa4 Ke7 26.Qc6+-) 24...d5 25.Nd2 Re8?? (25...Qf2 26.Nf3 Qg3 27.Rb5 (27.Qa7?? Bf6 28.Qc5 Bg7-+) 27...Bf6 28.Qg8 Qg7 29.Qg7 Bg7 30.Rc5+-) 26.Nf3 (26.Qa7 Bf6 27.Nb3 Bg7 28.Nc5 Qc5 29.Qc5 Ra8+-) 26...Qc3? (better is 26...Qf4 27.Qa7 Bf6 28.Bf6 Qf6 29.Qc5 Qf4+-) 27.Qa7 Bf6 28.Bf6 Qf6 29.Qc5 Rc8 30.Rb7 Qf4 31.Kg1 Rg8 32.Qf2 f6 33.c4 dc4+= 34.dc4 Qc4 35.Ne5 fe5 36.Qf7 Kc8 37.Rc7 Qc7 38.Qg8 Kb7= 39.Qe6 Qc1 40.Kf2 Qd2 41.Kf3 Qf4 42.Ke2 Qe4 ½–½. Maier,Christian (2345) – Doncea,Vladimir (2400), 11th Kesarovski–Stanchev Mem, 2012. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 Ba6 6.d3 =.

5.Nc3 Bb7 6.Rb1 Qc8 (6...Qc7 7.Nb5 Qa5 8.Ne5+-) 7.Bc4 Be7 (7...Nf6 8.d3+=) 8.d3 (8.0-0 Nc6+-) 8...Bf6 (8...Nf6 9.Bg5+=) 9.e5 (9.Nb5 Be7+-) 9...Be7 10.Ng5 (10.Ne4 Nc6+-) 10...Nh6 (10...Nc6!? 11.Qf3 f6 12.ef6 Nf6=) 11.Nge4+= Nf5 12.0-0 0-0 (12...Nc6 13.Bf4+=) 13.g4 (13.Bf4+=) 13...d5? (better 13...Nd4!?=) 14.gf5+- de4 (14...Kh8 15.f6 gf6 16.ef6 Rg8 17.Kh1+-) 15.de4 (15.fe6 Nc6 16.ef7 Kh8+-) 15...ef5 (15...Nc6 16.fe6 Ne5 17.Nd5+=) 16.Nd5 (16.ef5 Nc6 17.Bd5+-) 16...Bd5 (16...Bd8 17.e6 fe6+-) 17.ed5 (17.Bd5?! Nc6+=; 17.Qd5?! Nd7 18.Bb5 Nb6=) 17...Nd7 18.d6 Bd8 19.f4 (19.Bd5 Rb8 20.Rb8 Nb8+-) 19...Nb6+- 20.Be2 Qe6 21.Rb3 (21.Qd3 Qa2 22.c4 Qa4+-) 21...f6 (21...Rb8 22.Ra3+=) 22.Bf3+- fe5 (22...c4 23.Rb5 Rb8 24.Qd4+-) 23.Ba8+- Na8 24.fe5 Qe5 (24...Bb6 25.c4 Qc4 26.d7+-) 25.Bb2 (25.Re1 Qd4 26.Qd4 cd4+-) 25...Qe4 26.Re1 Qg4?? (better 26...Qc6+-) 27.Rg3 Qd1 28.Rg7 (28.Rd1?! g6+-) 28...Kh8 29.Rd1 Bf6 30.Bf6 Rf6 31.Ra7 (31.d7 Kg7 32.d8Q Rg6 33.Kf2 Re6 34.Qg5 Rg6 35.Rd7 Kh8 36.Qd8 Rg8 37.Qf6 Rg7 38.Qg7) 31...Nb6 (31...Rf8 32.d7 Rd8 33.Ra8 Ra8 34.Re1 Rg8 35.Kf2+-) 32.Re1 (better 32.Rb7 Rf8 33.Rb6 Kg7+-) 32...Rg6 33.Kf2 (33.Kf2 Rg8 34.d7 Nd7 35.Rd7+-) 1–0. Mooi,Kok Onn Osric (2010) – Chua,Xavier (1725), National Chess Championship for the Dr, 2010. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 d6 6.Rb1 Nd7 7.Bb5 Qc7 8.0-0 a6 9.Ba4 Ngf6 (9...Be7 10.Re1+-) 10.Re1 Be7 11.e5 de5 12.Ne5 Bd6 (better 12...Rb8 13.Rb8 Qb8+-) 13.Nf3?? (better 13.Qf3 0-0 14.Qa8 Ne5 15.Ne4 Ne4 16.Qe4+- (16.Re4?! c4+=)) 13...0-0= 14.Bd7 (14.d3 Nb6=) 14...Bd7=+ 15.Ne4 (15.Qe2!?=+) 15...Ne4-/+ 16.Re4 Bc6 17.Rh4 Rab8 18.Bb2 Bf3 19.Qf3 (19.gf3 Rb4 20.Rb4 cb4 21.c3-+) 19...Be5 20.c3 Bf6 (20...Rb6!? 21.Qd3 f5-+) 21.Rh3-/+ Qe5 (21...Qa5 22.Qe4 h6 23.a3-+) 22.Qd1 (22.Qd3 Qf5 23.Qf5 ef5-/+) 22...Qf5 (22...Qe4 23.Re3 Qc4 24.Ba3-/+) 23.Rh5 (23.Rf3!? Qg5 24.Qc2-/+) 23...Qd3 24.Rh3 (24.Rc5? Rfd8 25.g3 Qd2 26.Qd2 Rd2-+) 24...Qg6 (24...Qe4 25.d3 Qd5 26.c4-/+) 25.Rg3 Qf5 26.Rf3 Qg5 27.Rg3 Qf4 28.Rf3 (28.d3 Rb6 29.Ba1 Rb1 30.Qb1 Bh4-+) 28...Qc4 29.Rf6? (better 29.Ba3 Rb1 30.Qb1-/+) 29…gf6-+ (29...gf6 30.Ba3 Rb1 (30...Qa2?! 31.Ra1 Qc4 32.d4-+) 31.Qb1 Rd8-+) 0–1. Jonsson,Lars – Nyander,J (2155), Svenska Cup, 2017. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 d6 6.Rb1 Nf6 7.e5 Nd5 8.Ne4 de5 9.Ne5 a6 10.c4 Nb6 11.d4! f6?? (11...cd4 12.Bg5 Decoy; 11...Qd4 12.Rb6 Deflection) 12.Qh5+- (12.dc5?! Qd1 13.Kd1 Na4+=) 12...g6 13.Ng6! hg6 14.Qh8 Qd4 (14...N6d7+-) 15.Nf6 (15.Rb6?! Qe4 16.Be3 Nd7+-) 15...Kf7 (15...Ke7 16.Be3 Qc3 17.Kd1 Qa5+-) 16.Bb2 Qf4 17.Qh7 Bg7 18.Qg8 (18.Qg8 Ke7 19.Qg7 Kd8 20.Qf8 Kc7 21.Ne8 Kd7 22.Rd1 Nd5 23.Qf4 (23.cd5?! Qf8 24.Nf6 Ke7+-) 23...Ke8 24.cd5+-) 1–0. Rossi,Carlo (2340) – Ricci,Alfredo (2035), Bratto op–A, 2007. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 d6 6.Rb1 g6 7.Bc4 Bg7 8.0-0 Ne7 9.d4 0-0 10.Ne2 d5 11.ed5 ed5 12.Bb5 c4 13.Ba3 a6 14.Ba4 Bd7 15.c3 Re8 16.Nf4 Qa5 17.Bd7 Nd7 18.Bb4 Qc7 (worse is 18...Qa2 19.Be7 Re7 20.Nd5+-) 19.Be7 Qf4 (19...Re7?? 20.Nd5 Qd6 21.Ne7 Qe7 22.Qa4+-) 20.Bh4 Nf6 21.Bf6 Qf6 22.Qa4 Qd6 23.Rb7 Rab8 24.Ra7 Ra8 25.Rd7 Qe6 26.Ng5 Qe2 27.Rf7 Rab8 28.g3 Re7 29.Re7 Qe7 30.Nf3 Qe4 31.Nh4 Rb6 32.Qd7 Bf8 33.Ng2 Rd6 34.Qc8 Kf7 (34...Qc2!? 35.Nf4 Qe4+=) 35.Re1+/- Qf3 36.Re3 Qd1 37.Ne1 Kg7 38.Kg2 Qb1? (better is 38...Qa4!?+/-) 39.Qc7+- Kg8?? (39...Kh8 40.Re8 Rf6+-) 40.Rf3 (40.Rf3 Rf6 41.Rf6 Qe4 42.Nf3+-) 1–0. Chulivska,Vita (2260) – Sluzhbina,Anastasiya (2145), UKR–ch sf (Women), 2005. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5)

5.Nc3 Ne7 6.Bb5 Ng6 7.h4 (7.Rb1 a6 8.Bc4 Be7+=) 7...Be7 (7...a6!? 8.Ba4 Bd6+=) 8.h5+= Nh4 9.Nh4 Bh4 10.Ba3 Bf6 11.e5 Be5 12.Qf3 (worse is 12.Bc5 Bb7 13.Qg4 a6=) 12...Bc3 13.Qc3 Qf6 14.Qf6 gf6 15.Bc5 Bb7 16.f3 Rg8 17.Bf1 d5 18.Rb1 Bc6 19.Rh4 Nd7 20.Bd6 Nb6 21.Kf2 Kd7 22.Ba3 f5 23.Bb2 Kd6 24.Bd3 Nd7 25.Ba3 Kc7 26.Rhb4 Rg5 27.Rh4 Rag8 28.Bf1 e5 29.d4 f6 30.Bc1 f4 31.Rh2 Nf8 32.Bd3 Ne6 33.de5 fe5 34.c4 e4 35.cd5 e3 36.Be3 fe3 37.Ke3 Bd5 38.Bh7 Rg2 39.Rg2 Rg2 40.Rc1 Kd6 41.Rc2 Rg3 42.Be4 Rh3 43.Bd5 Kd5 44.Rd2 Kc6 45.Rf2 Rh5 46.f4 Ng7 47.Rc2 Rc5 48.Rg2 Nf5 49.Ke4 Nd6 50.Kd4?! (50.Kf3-+) 50...Rc4 51.Ke3 Nf5 52.Kd3 Rf4 53.Kc3 Kb5 54.Kb3 Rf3 55.Kb2 Nd4 56.Rh2 Kb4 57.Rh4 Rf2 58.Kb1 Kc3 59.a4 Rb2 (59...Rb2 60.Kc1 Ne2 61.Kd1 Ng1-+) 0–1. Farkas,Gabor (2180) – Rozum,Ivan (2315), EU–chT U18 6th, 2006. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 g6 6.Bc4 Bg7 7.e5 d5 8.ed6 Qd6 9.0-0 Nf6 10.Rb1 0-0 11.d3 Nbd7 12.Ng5 Nb6 13.Nge4 Ne4 14.Ne4 Qe7 15.Ba3 Nd7 (better is 15...Qc7!? 16.Bc5 Rd8 17.Bb6 ab6+=) 16.Qf3+- Ne5 17.Nf6! Bf6 (17...Qf6 18.Qa8 Discovered attack; 17...Bf6 18.Qa8 Discovered attack) 18.Qa8 Nc4 19.dc4 Ba6 20.Qc6 Bc4 21.Bc5 Qe8 22.Qd6 Bf1 23.Qf8 Qf8 24.Bf8 Kf8 25.Kf1 h5 26.Ke2 Bd4 27.Rb7 e5 28.f3 f5 29.Kd3 Bb6 30.a4 g5 31.h3 h4 32.Kc4 (32.c3 Bf2+-) 32...Bf2? (32...e4+-) 33.Kd5 Bd4 34.c4 Ke8 35.c5 Kd8 36.Rf7 (worse is 36.Ra7 Kc8+-) 36...g4 37.hg4 fg4 38.fg4 Kc8 39.g5 (39.g5 Bc3 40.Kd6+-) 1–0. Verrascina,Nicola (2100) – Russi,Roberto (2125), Imperia op, 2003. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.c4 Qc7 6.Nc3 a6 7.g3 Nc6 8.Bg2 Rb8 9.0-0 Nf6 10.d4 cd4 11.Nd4 Ne5 12.Bf4 d6 13.Qa4 Nfd7 14.Rab1 Rb1 15.Rb1 Qc4 16.Rb8?? (better is 16.Qc4 Nc4 17.Bf1+=) 16...Qc3-+ 17.Be5 (17.Ra8 Ke7 18.Qd1 Qc7-+) 17...Qc7 (better is 17...de5 18.Ne2 Qc7-+) 18.Ra8 de5 19.Qa6 Nb6 20.Qb5 Ke7 21.Nc6 Kf6 22.Ra7-/+ Bb7 23.Rb7 Qb7 24.Qe5 Kg6 25.Nd4?? Nc4 26.Qf4 h5 27.h4 e5 28.Qf5 Kh6 29.Bf3 g6 30.Qf6 Bg7 31.Nf5 (31.Nf5 Kh7 32.Qg7) 1–0. Puzzoni,Christian (2125) – Ricci,Alfredo (2065), ITA–ch sf Saint Vincent, 2008. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Bc4 Ba6 6.Na3 Nf6 7.d3 Nc6 8.0-0 Qa5 9.Qd2 Nb4 10.c3 Nc6.

5.Bc4 d5 6.ed5 ed5 7.Qe2 Ne7 (7...Be7 8.Bb5 Bd7 9.Bb2 Kf8 10.Nc3 d4) 8.Bb5 Bd7 9.0-0+= Bb5 10.Qb5 Nbc6.

5.Bc4 d6 6.0-0 (6.Nc3 Ba6 7.Nb5 Nf6 8.Qe2 Bb7 9.0-0 Be4 10.Ng5 Bf5) 6...Be7 (6...Nf6 7.Nc3 Ba6 8.Qe2 Bc4 9.Qc4 Nc6 10.Rb1 Be7) 7.c3 (7.Nc3 Nf6+= (7...Ba6 8.Nb5 Nf6 9.e5 d5 10.Bd3 c4) 8.e5 de5 9.Ne5 Ba6 10.Qf3 Bc4) 7...Nf6= (7...Nc6 8.d4 Nf6 9.Nbd2 0-0 10.Rb1 Bd7) 8.Re1 (8.d3 0-0= (8...Nc6 9.Na3 0-0 10.Rb1 Bd7) 9.e5 Nd5 10.Na3 de5; 8.e5 Nd5 9.Qb3 de5 10.Bb5 Bd7) 8...0-0 (8...Nbd7 9.Na3 Rb8 10.Qc2 0-0) 9.d4 (9.Na3 Nc6 10.Rb1 Bd7) 9...Ne4 (9...d5 10.ed5 ed5 11.Bd3=; 9...cd4 10.cd4 Ne4) 10.d5 (better is 10.Re4 d5 11.Bd3+-) 10...Nf6= (10...Ng5=) 11.de6 fe6 12.Be6 Be6 13.Re6 d5 (13...Qd7 14.Re1=) 14.Bg5 Nbd7 (14...h6 15.Bh4 Qd7 16.Re7 Qe7 17.Bf6 Rf6 18.Qd5 Re6 19.Nbd2=) 15.Nbd2 (15.Qe2 Re8=) 15...Re8 (15...c4 16.Nd4 Bc5 17.Be3=) 16.Qe2 Nf8? (better is 16...Bd6!=) 17.Re1+/- Ne4?? (17...Ng6 18.Ne5 Ne5 19.Qe5+/-) 18.Be7 (18.Re4 de4 19.Qc4 Kh8 20.Ne5+- (20.Re4 Ng6+=; 20.Ne4? Bg5 21.Qc5 Bf6-+)) 18...Qd7? (better is 18...Re7 19.Re7 Qe7 20.Ne4 de4 21.Qc4 Qf7 22.Qe4 Rd8+/-) 19.Re4+- de4 20.Qe4 (20.Qc4 Qe6 21.Qe4 Qa2+-) 20...Ng6 21.Qc4 Kh8 22.Bg5 Rf8? (22...Re1 23.Ne1 Re8+-) 23.Qc5 h6 24.Be3 Rf5 25.Qd4 Qd4 26.Bd4 Ra5 27.h4 Rb8 28.Nc4 Ra2 29.Re4 Rf8 30.Nce5 Ne5 31.Ne5 Kh7 32.h5 Re8 33.Rf4 Ra5 34.Nf3 Re7 35.g4 g6 36.Rf8 gh5 37.Nh4 Rg7 38.Bg7 Kg7 39.Rf4 Rg5 40.f3 hg4 41.Rg4 Kf6 42.Rg5 Kg5 43.Ng2 a5 44.Ne3 Kf4 45.Kf2 a4 46.Nc2 h5 47.c4 Ke5 48.Kg3 Kd6 49.f4 Ke6 50.Kh4 Kf5 51.c5 (51.c5 Ke6 52.Nd4 Ke7 53.Nb5+-) 1–0. Faccia,S (2000) – Bonafede,A (2145), Autumn Open, Venice ITA, 2005. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.Bc4 Nf6 6.Nc3 Nc6 7.0-0 Be7 8.e5 Ng4 9.Qe2 Rb8 10.h3 Nh6.

5.Bc4 Nf6 6.Qe2 Be7 (6...Nc6 7.e5 Nd5 8.Nc3+=) 7.Nc3 (7.e5 Nd5+-) 7...0-0+= 8.e5 Ne8 9.0-0 (9.Qe4 Nc6 10.Rb1 d5 11.ed6 Qd6=) 9...Nc6 10.Ne4 (10.Rb1 d5 11.Bb5 Bd7=) 10...f5 (10...f6 11.ef6 Nf6 12.Bb5=) 11.Ng3 Nc7 12.c3 (12.Rb1!?=) 12...Na5=+ 13.Bd3 Rb8 14.Re1 (14.Rb1 Rb1 15.Bb1 Nd5=+) 14...Bb7 (14...Nd5 15.Ba3-/+) 15.Rb1 (15.c4 Na6=+) 15...Nd5-/+ 16.Bc2 (16.Nf5 Rf5 17.Bf5 ef5-/+) 16...c4 17.Nf1 (17.Qf1 Qc7-/+) 17...Qc7 18.g3 Bc5 19.Ne3 (19.Bb2 Bc6-/+) 19...Qc6 (19...Ne3 20.de3 Bf3 21.Qf3 Rb1 22.Bb1-+) 20.Nd5 (20.Ng2 Ba8 21.Ra1 h6-+) 20...Qd5-+ (worse 20...ed5 21.d4 cd3 22.Bd3+-) 21.Bd1?? (better 21.Rb7 Rb7 22.d4 cd3 23.Bd3-+) 21...Ba8 22.Rb8 (22.Rb4 Bb4 23.cb4-+) 22...Rb8 23.Qf1 (23.d4 cd3 24.Qd2 h6-+) 23...Rb1 24.Be2 Nc6 25.Qg2 (25.d4 cd3 26.c4 de2 27.cd5 ef1Q 28.Kf1 ed5-+) 25...Ne5 26.Nh4 Ba3 (better 26...Bf2 27.Kf2 Qc5 28.d4 cd3 29.Be3-+) 27.f4 (27.Qd5 Bd5 (27...ed5?! 28.Bf1 Nc6 29.Re8 Kf7 30.Ra8 Bc1 31.Nf3-+) 28.Bf1 Nd3 29.Ba3 Re1-+) 27...Nd3 28.Bd3 (28.Ba3 Re1 29.Bf1 Rd1 30.Qd5 Bd5-+) 28...cd3 29.Qd5 Bd5 30.Ba3 (30.Kf2 Rc1 31.Rc1 Bc1 32.c4-+) 30...Re1 31.Kf2 Re2 (31...Re2 32.Kf1 Rd2-+) 0–1. Faccia,Sergio – Aleksic,Nenad, 27th Porto San Giorgio Open, 2016. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.Bd3 Nc6 6.Na3 =.

5.Bd3 Nf6 6.0-0 (6.e5 Nd5=) 6...Be7 (6...d6 7.Nc3=) 7.Nc3 (7.e5 Ng8+=) 7...Ba6 8.Bb2 (8.Ba6 Na6 9.d3 h5=) 8...Bd3 9.cd3 Nc6 10.a3 0-0 11.Re1 h6 12.Rb1 Rb8 13.Qa4 Qa5 14.d4 (14.Qa5!? Na5 15.Ne2=) 14...Qa4-/+ 15.Na4 cd4 16.e5 Nd5 17.Nd4 Nd4 (better is 17...Nf4!? 18.Nc6 dc6-/+) 18.Bd4= Ba3 19.Nc5? (19.Ba7 Rb4 20.Nc3 Nf4=) 19...Nb6 (better is 19...Rb4 20.Rb4 Bb4-/+) 20.Rb6?? (better is 20.Ra1 Bc5 21.Bc5+=) 20...ab6-+ (20...Rb6?! 21.Nd7 Rb4 22.Bc3-+ (22.Nf8?? Rd4 23.Ne6 fe6-+)) 21.Nd7 Rb7?? (better is 21...Rbd8 22.Nf8 Rd4 (22...Bf8?! 23.Bb6 Rd2 24.Rc1=) 23.Ne6 fe6-+) 22.Nf8= Bf8 23.Rb1 b5 24.Kf1 Rd7 25.Be3 Rd5 26.f4 Bc5 (26...b4 27.Ke2=) 27.Ke2 (27.Rb5 Be3 28.Rd5 Bf4 29.Rd8 Kh7+/-) 27...g5? (27...Bf8 28.Kd1=) 28.g3 (28.Rb5 Be3 29.Rd5 Bf4 30.Rd8 Kh7+/-) 28...Kg7 (better is 28...gf4 29.gf4 Be3 30.Ke3 Rc5=) 29.Kf3 (29.Rb5 Be3 30.Rd5 ed5 31.Ke3 (31.de3 gf4 32.ef4 Kf8+-) 31...gf4 32.gf4+- (32.Kf4 Kf8 33.Kg4 Kg7+-)) 29…Kg6 ½–½. Aufmwasser,Guenter – Wolffram,Gert (1815), Bad Woerishofen Seniors op, 2002. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.d4 cd4 6.Nd4 a6 7.Bd3 Qb6 8.Nb3 Nc6 9.Be3 Qc7 10.0-0 Nf6 11.f4 Be7 12.N1d2 d6 13.c3 Bb7 14.Qe2 0-0 15.g4 e5 16.g5 Nd7 17.f5 Rfd8 18.g6 Nf6 (worse is 18...hg6 19.fg6 Nf6 20.Bc4+-) 19.Bc4 d5 (worse is 19...hg6 20.fg6 Rdb8 21.Bf7 Kf8 22.Rac1+-) 20.ed5 Nd5 21.Qh5 hg6? (21...fg6 22.fg6 h6 23.Bh6 gh6 24.Qh6 Bc5 25.Nc5 Nd4+-) 22.fg6+- fg6 23.Qg6 Qd6 24.Qf7 Kh8 25.Rf3?? (better is 25.Qh5 Kg8 26.Nc5 Qc5 27.Bc5 Bc5 28.Kh1+-) 25...Ne3+= 26.Rh3 Qh6 27.Rh6 gh6 28.Qh5 Bg5 29.Ne4 Bf4 30.Be6 Nd4 31.Nd4 Be4 32.Ne2 Rg8 33.Bg8 Rg8 34.Ng3 Nc2? 35.Kf2?? Bg6= 36.Qd1 Na1 37.Qa1 Rd8 38.Ne2?? Bg5?? 39.c4+/- Bf6 40.Qb2 Rf8 41.Qb7 a5 42.Ng3 Bd3 43.c5 e4 44.Ne4+- Bd4 45.Kg2 Bf1 46.Kh1?? Bh3-/+ 47.Ng3 Re8 48.Qb1 Bc5?? 49.Qc1+- Re6? 50.Qc3 Kg8 51.Nh5 Rg6 52.Qc5 Bd7 53.Ng3 a4 54.Kg2 Rf6 55.Qd4 Bc6 56.Kg1 Kf7 57.Qc4 Kg6 58.Qg8 1–0. Damia,Angelo (2155) – Fezza,Davide (2060), Campobasso op, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.d4 cd4 6.Nd4 Bb7 7.Bd3 Nf6 8.Nd2 Nc6 9.Nc6 Bc6 10.0-0 Qc7 11.Bb2 Bd6 12.h3 Be5 13.Be5 Qe5 14.Nc4 Qg5 15.Qd2 Qd2 16.Nd2 Ke7 17.Rfb1 Rhb8 18.f3 d5 19.c4 de4 20.Ne4 Rd8 21.Rb3 Nd7 22.Kf2? (better is 22.Re1=) 22…f5-+ (22...f5 23.Nc3 Nc5-+) 0–1. Damia,Angelo (2235) – Firman,Nazar (2495), Olomouc Ave Kontakt Cup, 2006. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.d4 cd4 6.Nd4 Nc6 7.Be3 Qc7 (7...Nf6 8.Nc6 dc6 9.Qd8 Kd8 10.Nd2=) 8.Bd3 a6 9.0-0 Nf6 10.Kh1 Bd6 11.h3 (11.Nd2 Rb8=) 11...Be5 12.Nc6?? (better 12.c3=) 12...Ba1-+ (12...dc6?! 13.c3 Bf4 14.Bf4 Qf4 15.Qd2=) 13.c3?? (better 13.Nd4-+) 13...Qc6 14.Bd4 d6 (better 14...Bb7!? 15.Qf3 d5 16.Nd2 Bc3 17.Bc3 de4 18.Ne4 Ne4 19.Bb2-+) 15.Nd2 e5 (15...Bc3?! 16.Qc2-+) 16.Be3 (16.Qa1 ed4 17.cd4-+) 16...Bc3 (worse 16...Qc3 17.Nc4 Be6 18.Nd6 Kf8 19.Qa1 Qd3 20.Rd1-+) 17.Nc4 (17.Qc2 d5 18.Nb1 d4-+ (worse 18...de4 19.Be2-+)) 17...Be6 18.Qb3 Bd4 19.Bd4 ed4 20.Rc1 0-0 21.Qb2 (21.Qb1 Rab8 22.Qc2 Rfc8-+) 21...Rfc8 (21...Ne4 22.Qd4 d5 23.Re1-+) 22.Qe2 (22.Qd4 Rab8 23.a3 Rb3-+) 22...Qc5 (22...d5 23.ed5 Qd5 24.Kg1-+) 23.f4 (23.Rc2 Bc4 24.Bc4 Qe5-+) 23...Nd7 (better 23...d5!? 24.ed5 Nd5 25.Be4-+) 24.f5 (24.Rc2 Qb4 25.Rb2 Qc3-+ (25...Bc4 26.Rb4 Bd3 27.Qd3+/-)) 24...Bc4 25.Bc4 (25.Rc4 Qe5-+) 25...Kh8 (better 25...d5 26.ed5 Nb6 27.d6 Qd6 28.Qe4-+) 26.h4 (26.Rc2 Ne5 27.Bd3 Qa3 28.Rc8 Rc8 29.Ba6 d3 30.Bd3 Nd3-+) 26...Ne5 27.h5 d3 28.Qd2 Nc4 29.Qd3 Ne5 30.Rc5 Nd3 31.Rd5 Ne5 (31...Nf2 32.Kg1 Ne4 33.Rd4 Rc1 34.Kh2-+) 32.Rd6 Ng4 33.h6 (33.g3 Rc2 34.h6-+) 33...Rc1 34.Rd1 Rd1 0-1. MeneerMandje (2725) - opperwezen (2860), lichess.org, 2017. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

5.d4 cd4 6.Nd4 Nf6 7.Bd3 Be7 8.0-0 d6 9.Be3 0-0 10.f4 Bb7 11.Nd2 Nbd7 12.Rb1 Rb8 13.Rb7 (better is 13.Qf3!?+=) 13...Rb7-/+ 14.Nc6 Qe8 15.e5 de5 16.fe5 Nd5 17.Rf3 (17.Qh5 g6 18.Qe2 Bc5 19.Bc5 Nc5-/+) 17...f5 (17...Ne3!? 18.Ne7 Qe7 19.Re3-+) 18.Ne7 Qe7 19.Bd4 Nc5 20.Nb3 Nd3 21.Qd3 Rc8 22.c4 Nb4 23.Qe2 Rbc7 24.c5 Qd7 25.Qc4 Rb8 26.Rf5 Na2 27.Rf3 Nb4 28.Bc3 Qd5 29.Rf4?? (better is 29.Qd5 Nd5 30.Be1-+) 29...Qc4 (better is 29...Nd3 30.Qd5 ed5-+) 30.Rc4 Nd3 (30...Nd3 31.Nd2 Rc5 32.Rc5 Nc5-+) 0–1. Damia,Angelo (2155) – Martinovic,Slobodan (2445), Belgrade Trophy, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Be2 Nc6 6.0-0 d6 7.d4 cd4 8.Nd4 Nd4 9.Qd4 Nf6 10.e5 (10.Nc3!?+=) 10...de5= 11.Qe5 Bd6 12.Bb5 Ke7 (12...Bd7!? 13.Qd6 Bb5=) 13.Ba3+= Ba3 14.Na3 Qd6 15.Nc4 (15.Qe3 Nd5 16.Qg5 Kf8+=) 15...Qe5= 16.Ne5 Bb7 17.Rab1 Rab8 18.Rfd1 Ba8 0-1. jokido (2300) - opperwezen (2800), Casual Bullet game, lichess.org, 2017. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.e5 a6 6.d4 (better is 6.Nc3!?+/-) 6...cd4+= 7.Qd4 Nc6 8.Qe4 Rb8 9.Bc4 Bb7 10.Qd3? (10.Qe2 d5 11.Bd3 Nge7+=) 10...Na5?? (better is 10...Ne5 11.Ne5 Qa5 (11...Bg2?! 12.Qd7 Qd7 13.Nd7 Kd7 14.Rg1-/+) 12.Nc3 Qe5 13.Kf1 Nf6-+) 11.Ba6 Bf3 12.Qf3 (worse is 12.gf3 Nc6 13.0-0 Ne5-/+) 12...Nc6 13.c4?? (better is 13.0-0=) 13...Qa5-+ 14.Bd2 (14.Nc3 Qa6 15.Nb5 Bb4 16.Kf1 Qa4-+) 14...Qa6 (better is 14...Qe5 15.Qe3 Qa1-+) 15.Nc3 (15.Bc3 Bb4 16.0-0 Qc4 17.Bb4 Qb4-+ (worse is 17...Nb4 18.Nd2 Qd4 19.Rad1-+)) 15...Qc4 16.Ne2 (16.Qe2 Qd4-+) 16...Ne5 17.Qg3 (17.Qc3 Nd3 18.Kf1-+) 17...Nd3 18.Kf1 d6 (18...Rb2 19.Bg5 f6 20.Be3-+) 19.a3 (19.h4 Rb2 20.Rd1 Nf6-+) 19...Nf6 20.f3 (20.Qe3 Rb2 21.Bc3 Re2 22.Qe2 Qc3-+) 20...g6 (better is 20...Rb2 21.Bc3 Re2 22.Ke2 Nf4 23.Kd1-+) 21.Rd1 (21.Rc1 Nc1 22.Bc1 e5-+) 21...e5 (better is 21...Qc2!? 22.Nc3 Nd5 23.Re1 Nc3 24.Bc3 Qc3 25.a4-+) 22.f4 (22.Bc1 Nh5 23.Qg5 Nhf4 24.Rd3 Qd3 25.Bf4 Rb2-+) 22...Nh5 (better is 22...Ne4 23.Qe3 Qc2 24.Nc3 Nc3 25.Rc1-+) 23.Qe3 (23.Qf3 e4 24.Qe3 Bg7-+) 23...Ndf4 (23...Nhf4 24.Bb4-+) 24.Rc1 Qa6 (24...Qd5 25.Rg1-+) 25.Bc3 (25.Qe4 Nd3 26.Qc6 Qc6 27.Rc6 Rb2-+) 25...Qe2 (better is 25...Nd5 26.Qf3 Bh6 27.Qd5 Bc1 28.Kf2-+) 26.Qe2 Ne2 27.Ke2 Nf4 28.Kf3 Be7 29.a4 Kd7 30.Bd2 Rb3 31.Ke4 f5 0–1. Tyrlik,Rostislav – Stetz,Jan (1665), Karvina CZE, Primator Cup, 2014. (=1.e4 c5 2.b4?? b6?? 3.bc5+/- bc5 4.Nf3 e6)

5.e5 Bb7 6.c3 (6.Nc3 Nc6=) 6...Nc6 (6...Bd5 7.Bb5=) 7.Bb5 (7.Na3 h5=) 7...Nge7 8.0-0 Ng6 9.d4 cd4 10.cd4 Be7 11.Bd3 (11.Nc3 d5=) 11...d6 (11...Nb4 12.Nc3=) 12.Bg6 (12.Nc3!? 0-0 13.ed6 Qd6 14.Be3=) 12...hg6+= 13.Ba3 de5 14.Be7 Qe7 15.de5 0-0 16.Qa4 Qb4 17.Qb4 Nb4 18.Nbd2 Bd5 19.a3 Nc2 20.Rac1 Na3 21.Rc7 Nb5 22.Re7? (22.Rc5 a6+=) 22...Rfe8 (22...a5 23.Rb1 Nc3 24.Ra1-+) 23.Rd7 (23.Re8 Re8 24.Ra1 Rc8+=) 23...Red8 (better is 23...a5!?-+) 24.Rd8-/+ Rd8 25.Rb1 (25.Ra1 f6-/+) 25...a6 (25...Nc3 26.Ra1-/+) 26.Nf1 (26.Ra1 Ra8-/+) 26...Bf3-/+ 27.gf3 g5 28.Ra1 Ra8 29.Ne3 Kh7 30.Nc2 Kg6 31.Ra5 Nc7 32.Ne3 Nb5 33.Nc2 Nc3 34.Ne3 Ne2 35.Kg2 Nf4 36.Kg3?? Rc8 37.Ng2? Ne2?? 38.Kh3?? Rh8-+ 39.Kg4 Rh2 40.Ra2 Rg2 41.Kh3 Nf4 0–1. Goebl,Werner – Bischof,Rainer (2080), Bad Wildbad op, 2001. (=1.e4 2.b4 b6 3.Nf3 e6 4.bc5 bc5)

5.e5 Nc6 6.c3 Nge7 7.Be2 Qc7 8.d4 cd4 9.cd4 Nd5 10.0-0 Be7 11.a3 a5 12.Ra2 0-0 13.g3 (13.Rc2!?=) 13...f6 14.Rc2 Qb8 15.Bb2 Ba6 16.Nbd2 f5 17.Ba6 Ra6 18.Qe2 Ra7 19.Nc4 Qe8 20.Ne3 Ne3 21.Qe3 Rb7 22.Ne1 Qg6 23.f4 Rfb8 24.Rff2 Rb3 25.Qc1 h5 26.Rg2 Bd8 27.Qd2 Ne7 28.Nd3 Qe8 29.Nc5 R3b6 30.h3 Nd5 31.Bc1 Rc6 32.Qe2 Rbc8 33.g4 hg4 34.hg4 Qf7 35.Qf2 Be7 36.Bd2 Bf8 37.g5 g6 38.Ba5 d6 39.ed6 Bd6 40.Bd2 Qa7 41.Qe1 Bf4 42.Bf4 Nf4 43.Rg3 Qg7 44.Qf2 Nd5 45.Re2 Re8 46.Nd3 Qh8 47.Kg2 Qh4 48.Rh3 Qg4 49.Rg3 Qh4 50.Rh3 Qg4 ½–½. Konstacky,Matej (2025) – Holusova,Tana (2095), CZE–chT2f, 2006. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.g3 Bb7 6.d3 Nc6 7.Nbd2 Rc8 8.Bg2 Nf6 9.0-0 Be7 10.Rb1 Ba8 11.Nc4 d5 12.ed5 Nd5 13.Bd2 0-0 14.Re1 Nb6 15.Ne3 Re8 16.h4 f5 (16...Nd4 17.Ba5+=) 17.Nc4 (17.Bc3 Nd4=) 17...Nc4+= 18.dc4 Bf6 19.Ng5 Bg5 20.Bg5 Qc7 21.c3 h6 22.Bf4 e5 23.Bd5 Kh8 24.Qh5 Rf8 25.Be3 e4 26.Rb5 (26.Be6 Ne5 27.Bc8 Nf3 28.Kf1 A) 28...Ne1? 29.Bf5 (29.Ke1?! Qc8 30.Rb5 Bc6 31.Rc5 Qb7=) 29...Qe5 A1) 30.Re1?! Rf5 (worse is 30...Qf5 31.Qf5 Rf5 32.g4+/-) 31.Qg4 Bc6=; A2) 30.g4+-; B) 28...Qc8 29.Bh6 gh6 30.Qh6 Kg8=) 26...Ne5= 27.Bf4 Qe7 28.Be5 Qe5 29.Re4 Qc3 30.Re6 Qc1 31.Kg2 Bd5 32.cd5 Qc4 33.Rh6 gh6 34.Qh6 Kg8 35.Qe6 Kh8 ½–½. Shirazi,Kamran G (2405) – Spraggett,Kevin (2575), Metz op, 2006. (=1.e4 c5 2.b4 b6 3.Nf3 e6 4.bc5 bc5)

5.g3 Bb7 6.d3 d6 7.Bg2 Nd7 8.0-0 Be7 9.Nbd2 Rb8 10.Nc4 Nb6 11.Bb2 (11.Na5 Ba8=) 11...Nf6 12.Nb6 ab6 13.e5 de5 14.Ne5 Qc8 15.Bb7 Qb7 16.a4 (16.Ng4 h5 17.Nf6 Bf6 18.Bf6 gf6=) 16...0-0= 17.Qe2 Ra8 18.Nc4 Qc6 19.Rab1 (19.f4 Rfe8=) 19...Nd7 (19...Qa4? 20.Nb6 Qc6 21.Na8 Ra8 22.Ra1+-) 20.Qg4 g6 21.Qf4 (21.Ra1 Ra4 22.Ne5 Rg4 23.Nc6 Bd6=) 21...Ra4-/+ 22.Ne5 Ne5 (22...Rf4?? 23.Nc6 Bd6 24.gf4+-) 23.Qe5 f6 24.Qc3 b5 25.Rfe1 Qd5 26.Ra1 b4 27.Qd2 Ra1 28.Ba1 c4 29.Qe3 c3 (29...Ra8 30.dc4 Qc4 31.Qf3-+) 30.Qe6-/+ Qe6 31.Re6 Kf7 32.Rc6 (32.Ra6 Rd8-/+) 32...Ra8 33.Bc3 bc3 34.Rc3 Bd6 35.Kg2 Ke6 36.Rc4 f5 37.h4 h5 38.Kf3 (38.c3 Ra1-/+) 38...Kd5-+ 39.Kg2 Bc5 40.Kf3 Ra6 41.Kg2 (better is 41.Ke2-+) 41...Ra1 42.Rf4 Rc1 43.c4 Ke5 44.Kf3 Rc2 45.Kg2 Rd2 46.Rf3 Kd4 47.Re3 Kc3 (47...Rd3?! 48.Re6-+) 48.d4 Kd4 49.Re6 (49.Kf1 Kc4 50.Re2 Kd3 51.Rd2 Kd2-+) 49...Kc4 50.Rg6 Rf2 51.Kh3 (51.Kh1 f4 52.gf4 Rf4 53.Kg2 Rh4 54.Rh6-+) 51...Rd2 52.Rc6 Kb4 (52...Kb4 53.Rg6 Bg1-+) 0–1. Guijarro Galan,J (2170) – Spraggett,Kevin (2560), San Sebastian ESP, 2014. (=1.e4 c5 2.Nf3+= e6 3.b4 b6 4.bc5+= bc5)

5.g3 Bb7 6.d3 g6 7.Bb2 Nf6 8.Nbd2 Bg7 9.Rb1 Bc6 10.Bg2 d6 11.0-0 e5 12.Nh4 0-0 13.Nc4 Ne8 14.Ne3 Nd7 15.c3 Rb8 16.Qd2 Qa5 17.Ba1 Rb1 18.Rb1 Nb6 19.Rd1 c4 20.dc4 Qc5 (20...Bh6 21.f4+=) 21.Qe2 Nf6 22.Nd5 Nc4 23.Bf1 (23.Ne7!? Kh8 24.Nc6 Qc6 25.Bf1=) 23...Bd5-/+ 24.ed5 Rc8 25.Ng2 Bh6 26.Ne1 Nb6 27.Bh3 Rc7 (27...Nbd5 28.Bc8 Qc8 29.c4+/-; 27...Nfd5?! 28.Bc8 Nc8 29.Qg4=) 28.Bg2 Qc4 29.Qc4 Rc4 30.Nd3 Ra4 (worse is 30...Nbd5 31.Nb2 Rc5 32.c4+=) 31.c4 (31.f4 ef4 (worse is 31...Nbd5 32.fe5 Ne3 33.Rd2-/+) 32.c4 Nfd7 33.gf4 Nc4-+) 31...Nc4 (31...Rc4?! 32.f4 Nfd5 33.Bd5 Nd5 34.fe5 Be3 35.Kh1 de5 36.Ne5-/+) 32.f4 (32.Rb1 Ra2 33.Nb4 Ra4-+) 32...Ra2 33.Re1 (33.Rb1 Nd7-+) 33...Ng4 (33...Ne3 34.Re3 Ra1 35.Re1 Re1 36.Ne1 ef4 37.Nd3-+) 34.fe5 Nce3 35.ed6?? Rg2 36.Kh1 Rh2 37.Kg1 Rg2 38.Kh1 Rd2 39.d7 Bg5 40.Rb1 Rd1 41.Rd1 Nd1 42.Bd4 Nde3 43.d6 Nc4 44.Ba7 Nd6 45.Nc5 Bd8 46.Bb8 Nf2 47.Kg2 Nfe4 0–1. Guijarro Galan,J (2205) – Alvarez Pedraza,A, 34th Open Donostia ESP, 2011. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.g3 Bb7 6.Bd3 Nf6 7.e5 (7.Nc3 Nc6=) 7...Ng4= 8.Qe2 (8.0-0 Qc7 9.Nc3 c4+=) 8...Nc6 (8...Ne5 9.Qe5 Bf3 10.0-0-/+) 9.0-0 Qc7 Will e5 fall? (9...Nb4!? 10.Be4 Be4 11.Qe4 f5 12.ef6 Nf6=) 10.Bb2+= Rb8 11.Na3 Ba8 (11...Nb4 12.Be4 Be7+=) 12.Nc4 (better 12.Rab1!?+-) 12...Rb2=+ 13.Nb2 Qb7 14.Qe4?? (better 14.Be4 Qb2 15.Rfb1=+) 14...f5-+ 15.ef6 Nf6 16.Qe3 (16.Ba6 Qa6 (16...Ne4?! 17.Bb7 Bb7 18.Rab1-+; 16...Qb2?! 17.Qa4 Qb4 18.Qb3-+) 17.Qc4 Qb7-+) 16...Nd4 (16...Qb2? 17.Rfb1 Nd5 18.Rb2 Ne3 19.fe3+-) 17.Be2 (17.Be4 Ne4 18.Nd4 Ng3-+ (18...Qb2?! 19.Rfb1 Qd4 20.Rb8 Ke7 21.Qd4 cd4 22.Ra8-/+)) 17...Ng4 (17...Qb2?! 18.Rfb1 Ne2 19.Qe2 Bf3 20.Qd3-+ (20.Rb2?? Be2 21.Rb8 Kf7-+)) 18.Qd3 (18.Qd4 cd4 19.Nc4-+) 18...Ne5 19.Qe3 Ne2 20.Qe2 Nf3 21.Kg2 Ng1 (21...Ng1 22.f3 Ne2-+; 21...Nh4 22.Kh3 Qg2 23.Kg4 h5 24.Kf4 Bd6 25.Kg5 Be7 26.Kf4 Ng6 27.Ke3 Qe4) 0–1. Nunes,Moezio Correia (1745) – Freire,Andrey Carvalho (2050), Championship Cearense Absoluto, 2015. (=1.e4 c5 2.b4 b6 3.Nf3 e6 4.bc5 bc5)

5.Bb2 Nc6

6.Nc3 Rb8 7.Rb1 a6 8.Be2 (8.Bd3 d6+=) 8...d6 (8...d5 9.ed5 ed5 10.0-0=) 9.0-0 Nf6 10.Ba1 (10.d4 cd4 11.Nd4 Qc7=) 10...Qc7 (10...Rb1 11.Qb1 Nd4 12.Re1=) 11.Rb3 (11.Rb8 Qb8 12.d4 cd4 13.Nd4 Qb6 14.Nc6 Qc6=) 11...Be7 (11...Bb7 12.d4=) 12.d4 (12.Rb8 Qb8 13.Bc4 Nd4=) 12...cd4 13.Nd4 Rb3 (13...Rb7 14.Nc6 Qc6 15.Bf3=) 14.ab3 (14.cb3 0-0=) 14...0-0 15.Re1 (15.Qd2 Rd8=) 15...Bb7 (15...Nb4 16.Bc4=) 16.Nc6 Qc6 17.Bf3 (17.Bc4 Re8=) 17...Qc5 18.Na4 Qc7 19.c4 (19.Bd4 Nd7=) 19...Nd7 (19...Rb8=) 20.e5 (20.Bd4!?=) 20...Bf3-/+ 21.Qf3 de5 22.Qe3 (22.Qg3 Rb8-/+) 22...f6 (22...Rb8 23.Rd1-/+) 23.Qh3 Qc6 24.Rd1 (24.Bc3 Rb8 25.Bd2 e4-/+) 24...f5 (24...Nc5 25.Nc5 Bc5 26.Bc3-/+) 25.Bc3 (25.Bb2 Rd8=+) 25...Rb8 26.Be1 (26.Bb2 a5=+) 26...Nf6-/+ 27.Qc3 (27.Qe3 e4-/+) 27...Qe4 (27...Qc7 28.Qg3-/+) 28.f3 (28.Bd2 Qd4 29.Qc2 Rd8-/+) 28...Qe2 29.Qd3 (29.Ra1 Bb4 30.Qc1 Bf8-/+) 29...Qa2-+ 30.Nc3 Qa3 (30...Qb3 31.Rb1 Qb1 32.Nb1+-) 31.Qb1? (better 31.Bd2-+) 31...Rb3 (31...Qb3?! 32.Qb3 Rb3 33.Kf1-+) 32.Qa1 Qc5 33.Bf2 (33.Kh1 Qc4 34.Bd2 Bc5-+) 33...Qc4 (33...Qc4 34.Na2 Ra3-+) 0–1. Santos,Roberto Carlos (2085) – Barbosa,B Master Montei (1650), Brasil Athenas Engenharia, 2015. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6)

6.Nc3 Rb8 7.Rb1 Bb7 8.Be2+=.

6.Nc3 Rb8 7.Rb1 d6 8.Bb5 Bd7 9.0-0 Nf6 10.Ba1 Be7 11.Re1 (11.d4 0-0+=) 11...0-0= 12.d3 Ne8 (12...e5 13.Bb2=) 13.Ba4 Rb6 14.Nd2 Nd4 15.Bd7 Qd7 16.Nc4 Ra6 (16...Rb1 17.Nb1 Nc7 18.Nbd2=) 17.a3 Nc7 18.h3 (18.Rb7 Qc6 19.Qb1 Re8=) 18...d5 19.ed5 ed5 20.Ne5 Qf5 21.Ne2 Ne2 22.Qe2 Ra3 23.Nc4 dc4 24.Qe7 Ne6 25.dc4 Ra2 26.Rbc1 h6 (26...Rc2? 27.Rc2 Qc2 28.Re6+-) 27.Re3 Qg5 (27...Rc2? 28.Rc2 Qc2 29.Re6 Qc4 30.Re1+-) 28.Qb7 Re8 (28...Rd8 29.Be5=+) 29.Rce1 (29.Qb1 Ra6=) 29...Qe7 (29...Rd8 30.Bb2=+) 30.Qe4 (30.Qb3 Ra6=) 30...Rd8 31.Rg3 Qd6 (31...Qf8 32.Bf6 Rb8 33.Qh4+=) 32.Be5 (32.Bf6 Rd7+=) 32...Qd2 (better 32...Qf8!?=) 33.Bg7+= Ng7 34.Qe5 Qd4 35.Rg7 Kf8 36.Rh7 Qe5 37.Re5 Kg8 (37...Rd1!? 38.Kh2 Ra6+/-) 38.Rh6+- Rd1 39.Kh2 Kg7 40.Rh4 (40.Rc6 Rc2 41.Rg5 Kh7+-) 40...Rd2 (40...Rc2 41.Rg5 Kf8 42.Rc5 Rf2 43.Rc8 Ke7 44.Re4 Kd7 45.Ra8+/-) 41.Rf4 Rd4 42.Rf3 (42.Rg5!? Kf8 43.Kg3 Rf4 44.Kf4 Rc2 45.Rc5 Rf2 46.Kg3 Rc2+-) 42...Rc4+/- 43.Re7 a5? (better 43...Rcc2 44.Ref7 Kg8+/-) 44.Ref7+- (44.Rff7?! Kg6+/-) 44...Kg8 45.c3 (better 45.Rf8 Kg7 46.R3f7 Kg6 47.Rf6 Kg7 48.R8f7 Kg8 49.Rb7 Rcc2 50.Rg6 Kf8 51.Rc6+-) 45...Re4? (45...Rc3 46.Rf8 Kg7 47.R3f7 (47.Rc3?! Kf8 48.Kg3 a4+-) 47...Kg6 48.Rf6 Kg7 49.R8f7 Kg8 50.Ra7+-) 46.Ra7 (46.R7f5!? Kg7+-) 46...a4 47.Kg3 Re6 48.Ra5 (48.Rf5 Rc6+-) 48...Rg6 49.Kh2 c4 (49...Rc6 50.Rf4 a3 51.g4+-) 50.Rc5 1-0. Brankovic,De (2315) - Tomic,Aleksandar (2335), Paracin Orbis, 2021. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

6.Nc3 Nf6 7.Rb1+=.

6.e5 Rb8= 7.Bc3 Nge7 (7...d5 8.ed6 Nf6 9.Na3 Bd6 10.Bb5=+) 8.Bc4 (8.Bd3 d5 9.ed6 Nd5=) 8...Nd5 (8...Nf5 9.Na3=+) 9.0-0 d6 (9...Be7 10.Qe2=+) 10.ed6 (10.Re1 Nc3 11.Nc3 d5=+) 10...Nc3 11.Nc3 Bd6 12.Re1 (12.Rb1 Bb7=) 12...0-0 13.Ne4 Be7 14.Rb1 (14.Qe2 Nd4 15.Nd4 Qd4=) 14...Rb1=+ 15.Qb1 Bd7 (15...Na5 16.Bb3=+) 16.c3 (16.Qb3 Qc7=) 16...h6 (16...Qc7 17.Qd3=+) 17.Qd3 (17.Ng3 Qc7=) 17...Qc7=+ 18.Bb3 (18.Rb1 Rd8=+) 18...Rd8 (18...Rb8 19.h3=+) 19.Bc2 Bc8 (19...Be8 20.Qe3 Na5 21.Ng3=+) 20.Qe3 Attacking the isolated pawn on c5 (20.Qb5 a6 21.Qc4 Na5=+) 20...Ne5=+ 21.Ne5 Qe5 22.Bb3 (22.d3 Ba6=+) 22...Bb7 (22...Ba6 23.f4 Qf5 24.Bd1=+) 23.d3 Ba6 (23...Be4 24.de4 Bg5 25.Qf3=+) 24.f4 Qc7 25.Bc2 (25.Bc4 Bc4 26.dc4 Rb8=+) 25...Qa5 26.Bb1 (26.a4 Rb8=+) 26...Qb5 (26...Bb7 27.Rf1-/+) 27.Rf1 (better 27.h3-/+) 27...f5 (27...Qb2 A) 28.Nc5?? Qb6 29.Rd1 Rd3 (worse 29...Qc5 30.d4 Qa3 31.f5-+; worse 29...Bc5 30.d4-+) 30.Rd3 Bc5 (30...Qb1?! 31.Kf2 Bc5 32.Rd8 Bf8 33.Qc5 Qc2 34.Kg3 Qd3 35.Rd3 Bc5 36.Rd8 Kh7 37.a4-+) 31.Rd8 Qd8 32.Qc5 Qd1 33.Kf2 Qb1-+; B) 28.f5 ef5 29.Nc5 Bc5 30.Qc5-/+) 28.Ng3 (28.Ng5 hg5 29.Qe6 Kf8 30.Qf5 Ke8 31.fg5 Rd6=) 28...Qd7 (28...Qc6 29.Re1 Kf7 30.a4-/+) 29.Re1 Bf6 (better 29...Bh4=+) 30.Ne2? (better 30.Qe6!? Qe6 31.Re6=) 30...Bd3 (30...Qd5 31.Rc1-/+) 31.Bd3 Qd3 32.Qe6 Kh8 (32...Kh7 33.Kf2-/+) 33.c4 (33.a3 Bc3 34.Nc3 Qc3-/+) 33...Qd7 (33...Kh7 34.a4-/+) 34.Qd7 (34.Ng3 Qd4 35.Kh1 Qf4=+) 34...Rd7 35.Kf2 (35.Kf1 Rd2=+) 35...Rd2-/+ 36.Rb1 (36.a3 Ra2-/+) 36...Ra2 0–1. Rossi,Carlo (2320) – Passerotti,Pierluigi (2290), Montecatini ch–UISP, 1996. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

5.Nc3 Nc6

6.Rb1 d6 7.Bb5 Bd7 8.e5 (8.0-0!?+=) 8...de5 9.Bc6 (9.d3!?=) 9...Bc6=+ 10.Ne5 (10.Qe2 Rb8=+) 10...Bg2 (better 10...Qg5 11.Qe2 Qg2=+) 11.Qg4?? (11.Rg1!? Bd5 12.Qe2=) 11...Qd4 (11...Bh1 12.Qa4 Ke7-+) 12.Qd4 (12.Qg2 Qe5 13.Kd1 Qh5 14.Ke1 Rc8=) 12...cd4 13.Nb5 (13.Rg1 dc3 14.Rg2 cd2 15.Bd2 f6=+) 13...Bh1-/+ 14.Nc7 Ke7 15.Na8 Kf6 16.Nd7 Kg5 17.d3 Kh4 18.Nf8 (18.Ne5 Nh6 (18...Ba8?! 19.Nf7 Bd5 20.Nh8+=) 19.Bh6 gh6-+ (19...Ba8?! 20.Nf7 Rg8 21.Bg5 Kh5 22.Rb8=)) 18...Ba8 19.Rb8 Bd5 20.Nd7 (20.Bb2!? e5 21.f4=) 20...f6=+ 21.a4 (21.Bb2 e5=+) 21...Kh3 (21...e5 22.f4 Bc6 23.Rd8=+) 22.Bf4 (better 22.Nf6 gf6 23.Bh6 Nh6 24.Rh8=+) 22...e5 (better 22...h5-/+) 23.Bc1?? (better 23.Ne5 fe5 24.Be5=) 23...h5 (23...Kh2 24.a5-+) 24.f4 Rh6 (24...Bc6 25.Rd8 Ba4 26.fe5 Bd7 27.ef6-+) 25.f5? (better 25.fe5 Rg6 26.Bb2 Rg1 27.Kd2=+) 25...Rh8-+ 26.Nc5 (26.Ba3 h4-+) 26...h4 (26...Kh2 27.Rd8 Bg2 28.Rd7-+) 27.Rd8 Bg2 28.Ne4 (28.Rd7 Kh2 29.Ra7 Rh7-+) 28...Kh2 29.Kf2 h3 30.c3 (better 30.Ng3-+) 30...Be4 31.de4 dc3 32.Rd3 (32.Kf3 Rh4 33.Rg8 Kg1 34.Be3 Kf1-+) 32...Rh4 (32...Ne7 33.Rc3 Rc8 34.Rc8 Nc8 35.Ba3-+) 33.Kf3 (33.Rc3 Re4 34.Kf3 Re1 35.Rc2 Kh1-+) 33...g5 (33...Nh6 34.Rc3 Rg4 35.Rc2 Rg2 36.Rg2 hg2 37.Be3-+) 34.fg6 f5! 35.Rc3 (35.ef5 e4 Double attack (35...Ra4 Pinning; 35...Ra4 Deflection; 35...e4 Passed pawn)) 35...Re4?? (better 35...fe4 36.Kf2 Rg4-+) 36.Kf2?? (better 36.Rc2 Kg1 37.Bb2 Rf4 38.Kg3-/+) 36...Rg4 (36...Ra4 37.Bb2 Rg4 38.Rb3 Rf4 39.Ke2-+) 37.Be3 a6 38.Rc6 Rg2 (38...Ra4!? 39.Rc5 Ra2 40.Kf3-+) 39.Kf1 Kg3 (39...f4 40.Bf2 e4 41.Bd4-+) 40.Rc3 Kg4 (better 40...e4 41.g7 f4 42.Rc8 fe3 43.Rg8 Rf2 44.Ke1-+) 41.g7 (41.Bf2-+) 41...Ra2 42.Kg1 (42.Bg1 Ra4 43.Bh2-+) 42...Rg2 (42...f4!? 43.Bf2-+) 43.Kf1 Rb2 44.Kg1 Rb7 (44...f4 45.Bc5-+) 45.Bf2 (45.Bc5 f4 46.Rc1 e4-+) 45...Rb1 (45...f4 46.Kh2-+) 46.Kh2 Rb2 (46...Rb2 47.Rg3 Kf4 48.Kh3 Rf2-+) 0–1. Schmidrathner,Christian (2075) – Kleiser,Gregor (2300), Niederoesterreichische Landesliga, 2014. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 d6 7.d4 Qa5 8.Bd2 cd4 9.Nb5 Qd8 10.Nbd4 Nd4 11.Nd4 a6 12.Qf3 e5 13.Nb3 Be6 14.Bd3 Nf6 15.Qe2 Qc8 16.0-0 ½–½. Ridameya Tatche,Jose Miguel (1985) – Camacho Calle,Pedro (2100), Benidorm ESP, 2012. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 d6 7.Be2 Nf6 8.0-0 Be7 9.d4 cd4 10.Nd4 Nd4 11.Qd4 0-0 12.Be3 Bd7 13.Rb7 (13.f3 Qc7 14.Rb3 Rfb8+=) 13...Bc6= 14.Ra7 Ra7 15.Qa7 Ne4 16.Ne4 Be4 17.a4 Bg5 18.Bb6 (18.a5 Bc2 19.a6 Be4+=) 18...Qa8 (18...Qc8!?=+) 19.Qa8+= Ra8 20.a5 Bb7 (20...Rb8 21.f4 Bf6 22.Bd3 Bd3 23.cd3+=) 21.Rb1 Bd2? The isolani on a5 becomes a target (better 21...f5!?+=) 22.Bc7 Be4 23.a6 f5 (23...f6 24.Bd6 Bd5 25.Rb7+-) 24.Bd6 Bc3 (24...Kf7 25.Be5 Ra7 26.Bd3+-) 25.Rb8 Kf7 26.Ra8 Ba8 27.a7 (better 27.Bf3!? Bf3 28.gf3 Bd4+-) 27...Bd4 28.Bb8 e5 29.c4 (29.Bc4 Ke7+-) 29...e4 (29...Ke6 30.Kf1+-) 30.Kf1+- Ke7 31.f3 Kd7 32.fe4 fe4 33.h4 g6 34.g4 (better 34.Bg4 Ke7 35.Ke1+-) 34...Kc8 35.h5 Kb7 (better 35...Bc6!?+=) 36.hg6+- hg6 37.Kg2?? (better 37.g5+-) 37...Ba7 38.Bf4 Bd4 39.Kg3 Kc6 40.Kh4 Bf6 41.g5 Bd4 42.Kg4 Bb7 43.Bd1 (43.Kg3!?=) 43...Bc8 44.Kg3 Be6 (44...Kc5!?=+) 45.Ba4 Kc5 46.Be8 Bf5 47.Bf7 Bc3 48.Bd5 (48.Be3 Bd4 49.Kf4+-) 48...Be1-/+ 49.Kg2 Kd4 50.Kf1 Bc3 (better 50...Bh4!? 51.Ke2 Bg4 52.Kd2 Bf2-+) 51.Ke2=+ Bb4 52.Be3 Ke5 53.Kf2 Bd6 54.Kg3 Bb4 55.Bf4 (better 55.Kf2=) 55...Kd4-/+ 56.Bc7? (better 56.Bc6-/+) 56...Bd7?? (better 56...Kd3 57.c5 e3-+) 57.Kf4? Attacking the isolated pawn on e4 (better 57.Bf7!?=) 57...Bd2-/+ Black plans e3 58.Kg3 e3 (better 58...Bf5 59.Bb6 Kc3-/+) 59.Bf3?? (59.Kf3 Bf5 60.Bb7 Kc4=+) 59...Kc4 (better 59...Kd3 60.Kg2 e2-+) 60.Kg2?? (better 60.Be2 Kd5 61.Kf3=+) 60...Kd3-+ 61.Kf1 (61.Bb7 Bg4 62.Ba6 Kc2-+) 61...Bh3 62.Kg1 e2 63.Be2 (63.Bg3-+) 63...Ke2 64.Kh2 Bf5 65.Bd8 (65.Kg3 Bg5 66.Be5 Bd2-+) 65...Bf4 66.Kg2 Ke3 (66...Be4!? 67.Kg1 Be3 68.Kh2-+) 67.Bf6 (67.Bb6 Kd3 68.Kf3 Bg5 69.Bc7-+) 67...Ke2 68.Be7?? (68.Bd8 Be4 69.Kg1 Be3 70.Kh2-+) 68...Be4-+ 69.Kh3 Kf3 70.Kh4 (70.Bd6 Bd6 71.Kh4 Bg3 72.Kh3 Bf5) 70...Bg3 71.Kh3 Bf5 0–1. Alsulaymi,Abdullah M (1830) – Perdomo,C (2300), World Blitz, 2018. (=1.e4 c5 2.b4 b6 3.bc5 bc5 4.Nf3 e6 5.Nc3 Nc6)

6.Rb1 Be7 7.Bc4 Nf6 8.0-0 0-0 9.Re1 d6 10.d4 cd4 11.Nd4 Ne5 12.Bf1 Bd7 13.Ba3 a6 14.f4 Ng6 15.e5 de5 16.Be7 Qe7 17.fe5 Nd5 18.Nd5 ed5 19.Rb7 Qe8 20.Bd3 Qc8 21.Rb3 Nf4 22.Qf3 Nd3 23.cd3 Qc5 24.Qf2 Rab8 25.Rb8 Rb8 26.Nb3 Qf2 27.Kf2 a5 28.Ke3 a4 29.Nc5 Bc6 30.Rc1 h5 31.d4 Rb6 32.Nd3 h4 33.a3 Bd7 34.Nb4 Rg6 35.Kf3 Bg4 36.Kf2 Be6 37.g3 Rg4 38.Rd1 h3 39.Rd2 f6 40.ef6 gf6 41.Na6 Rg7 42.Nc5 Bg4 43.Rb2 Rg5 44.Ke3 Bd1 45.Rb8 Kh7 46.Rb2 Rg8 47.Rd2 Re8 48.Kf2 Bg4 49.Rb2 Bd1= 50.Rd2 Bg4 51.Na4 Ra8 52.Nc3 Ra3 53.Nd5 Kg6 54.Ne3 Bd7 55.d5 Kg5 56.Kf3 f5 57.Rb2 Be8 58.Rd2 Bd7 59.d6 Rb3 60.Kf2 Kf6 61.Nd5 Kg5 62.Nf4 Kg4 63.Nd3 Rb5 64.Re2 Kg5 65.Ne5 Rb7 66.Nd7 Rd7 67.Re6 f4 68.Re5 Kf6 69.gf4 Rd6 70.Kg3 Rd3 71.Kg4 Rd4 72.Rh5 Rd1 73.Rh6 Kf7 74.Rh3 Rg1 75.Kf5 Rf1 76.Ra3 Kg7 77.h3 Rf2 78.Rg3 Kh6 79.Ke5 Ra2 80.Rd3 Ra5 81.Ke6 Ra6 82.Rd6 Ra3 83.h4 Kh5 84.f5 Re3 85.Kf7 Rf3 86.f6 Kh6 87.Ke7 Kh7 88.h5 Kg8 89.Rd8 Kh7 90.f7 Re3 91.Kd6 Rd3 92.Kc7 (92.Kc7 Rc3 93.Kb6+-) 1–0. Muzychuk,Anna (2385) – Djingarova,Emilia (2290), Nova Gorica op–A, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 Nge7 7.Bb5 a6 8.Ba4 Qa5 9.0-0 Nd4 10.Ne5 Ng6 11.Nc4 Qc7 12.f4 Be7 13.f5 Ne5 14.Nb6 Rb8 15.Ncd5?? (better is 15.fe6 fe6 16.Nc8 Rc8 17.Qh5 g6 18.Qd1+=) 15...ed5-/+ 16.Nd5 Rb1 17.Nc7 Kd8 18.Re1 (better is 18.Qh5!? d6 19.Kh1+=) 18...Kc7-/+ 19.c3 (better is 19.Qh5!?-/+) 19...Nd3-+ 20.Rf1? (20.cd4 Rc1 (worse is 20...Nc1 21.dc5 Bh4 22.g3+/-) 21.Qc1 Nc1 22.Rc1 d5-+) 20...Rc1 (20...Nc1?! 21.cd4 Kd8 22.Bb3+=) 21.Qg4 Rf1 22.Kf1 Bf6 23.cd4 cd4 24.Qg3 Ne5 25.Qa3 Re8 26.d3 Nc6 27.Qb3 Re7 28.g4 Bb7 29.Qc2 h6 30.h4 Be5 31.Qc5 Bf6 32.Qc2 Re5 33.Qh2 d6 34.Bb3 Rc5 35.g5 hg5 36.hg5 Bg5 37.Qh5 Bf6 38.Qf7-/+ Kb6 39.Qd7 Be5 40.Bd5 Rd5! 41.ed5 Nb4 42.Qa4 Nd5 43.Qb3 Ka7 44.Ke2 Nc3 45.Kd2 Bd5 46.Qb4 Ba2 47.Qa5 Bd5 48.Qc7 Bb7 49.Kc2 Nd5 50.Qd7 Nb4 51.Kd2 Nc6 52.Kc2 Kb6 53.Kb3 a5 54.Qe8 Ba6 55.Kc2 Bb5 56.Qa8 Kc5 57.Qc8 a4 58.Qc7 Kb4 59.Kb2 Kc5 60.Kc2 a3 61.Kb3 Bd3 62.Ka3 Bf5 63.Qf7 g6 64.Qa2 d3 (64...d3-+) 0–1. Farkas,Gabor (2240) – Krutti,Valer (2385), HUN–chT, 2007. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 Nge7 7.g3 Ng6 8.Bg2 Be7 9.h4 h5 10.Ne2 (10.Qe2 Qc7=) 10...Bf6 11.c3 (11.0-0 Qc7=) 11...Qa5 12.0-0 Ba6 13.d4 cd4 14.cd4 (14.Nfd4 0-0+=) 14...Be2 (14...0-0!?+=) 15.Qe2= Nd4 16.Nd4 Bd4 17.Bd2 (17.Rd1!? Bb6 18.Rb5=) 17...Qa2 18.Qd3 e5 19.Bb4 (19.Rfc1 a5=) 19...a5 (19...Rb8 20.Bh3=) 20.Ba3 Qe6 21.Qb5 Qf6 22.Bh3 Qd8 (22...Rd8 23.Qa5 Nf8 24.Kh2+=) 23.Qd5 Rc8 (23...Nf8 24.Rb7 Ra7 25.Rfb1 Rb7 26.Rb7+- (26.Qb7?! Rh6+=)) 24.Rfc1+/- Rc1 25.Rc1 Rh6?? (25...Ne7 26.Qd6 Bb6+-) 26.Qd6 (26.Bd7 Qd7 27.Qa8 Qd8 28.Rc8 Bf2 29.Kf2 f5 30.Rd8 Kf7 31.Rf8 Nf8 32.Qf8 Kg6 33.Qf5) 26...Ne7?? (26...Bb6+-) 27.Bd7! Kf8 (27...Qd7 28.Rc8) 28.Rc8 (28.Qe7 Kg8 29.Qd8 Kh7 30.Bf5 g6 31.Rc8 Bf2 32.Kf2 Kg7 33.Qf8 Kh7 34.Qf7) 28...Bf2 29.Kf2 Rf6 30.Qf6! Mate attack 30...Qc8 (30...gf6 31.Rd8 Mate attack) 1–0. Salthe,Gaute – Remman,Frank, NOR–chT Harstad, 2001. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 g6 7.Bb5 Nd4 (7...Rb8 8.0-0+/-) 8.Bc4 (8.Bd3 Ne7+/-) 8...Qc7 (8...Ne7 9.0-0+/-) 9.d3 (9.Bb2 a6 10.Ne2 Nf3 11.gf3 f6+/-) 9...a6 10.0-0 Bg7 11.Nd4 (11.Na4 Ne7 12.Ba3 d6+/-) 11...cd4+= 12.Ne2 Ne7 13.Bf4 d6 14.Qd2 Qc5 (14...0-0 15.c3 dc3 16.Nc3=) 15.Qb4 e5 (15...Qb4 16.Rb4 Nc6 17.Rb6+=) 16.Bd2 0-0 17.Bg5 (better is 17.Qc5 dc5 18.h3+/-) 17...Nc6? (better is 17...Qc7+=) 18.Qc5+- dc5 19.Bd5 Bd7 20.Rb7 Be8 21.Rc7 h6 (21...Ra7 22.Ra7 Na7 23.Be7+-) 22.Bd2 (22.Bc6?! Bc6 23.Rc6 hg5+=) 22...Ra7 23.Rc6 Bc6 24.Bc6 Rb8 25.Bd5 a5 26.a4 Kh7 27.Bb3 f5 28.Ng3 f4 29.Ne2 Bf6 30.f3 Rbb7 31.g3 g5 32.Kg2 Rg7 33.g4 Rgb7 34.Ng1 Kg7 35.Nh3 Rb6 36.Nf2 Bd8 37.Rb1 Rab7 38.Kf1 Bc7 39.Ke2 Ra6 40.Kd1 Ra8 41.Kc1 Rab8 42.Kb2 Rb6 43.Ka1 R6b7 44.Nd1 h5 45.h3 hg4 46.hg4 Rh8 47.Nf2 Rhb8 48.Rh1 Rh8 ½–½. Ferreira,Kleber Victor (2075) – Guimaraes,Wagner Peixoto (2240), Rio de Janeiro BRA, Estadual de Mestres, 2014. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 h6 =.

6.Bb5 Bb7 7.0-0 Qc7 8.Bc6 Bc6 9.Re1 Ne7 (9...Rb8 10.d3=) 10.d4 cd4 11.Qd4 Rc8 12.Bd2 Ng6 13.Rab1 f6 14.Nd5 Bd5 15.ed5 e5 16.Qa4 Bc5 17.c4 0-0 18.Ba5 Bb6 19.Bb6 ab6 20.Qb5 Qc4 21.Qd7 Nf4 22.Rb6 Rfd8 23.Qf5 (better is 23.Qe7!? Nd5 24.Qe6 Kh8 25.Rb2=) 23...Qd5-/+ 24.Rb3 Nd3 25.Rd1 Nb4! 26.Re1 (26.Rb4 Qd1 Mate attack) 26...Na2 27.Rbe3 Nb4 0–1. Taulbut,S (2385) – McNab,C (2465), 4NCL, 2010. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

6.Bb5 Bb7 7.0-0 Nd4 8.Re1 Nf6 9.Rb1 Be7 10.Nd4 cd4 11.e5 dc3 12.ef6 Bf6 13.dc3 Bc6 14.Bc6 dc6 (14...Bc3?? 15.Ba8 Be1 16.Qd6+-) 15.Ba3 Be7 (15...Bc3?? 16.Qf3 Qc7 17.Qc3+-) 16.Be7 Qe7 17.Qf3 ½–½. Paavilainen,Jorma (2280) – Karolyi,Tibor Jr (2410), Helsinki, 1984. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bb5 Bb7 7.0-0 Be7 8.Qe2 Nf6 9.e5 Ng4 10.d3 f6 11.Nh4 (11.ef6!? Bf6 12.Bd2=) 11...Nge5-/+ (worse is 11...Nce5 12.f4+=) 12.f4 Nd4 13.Qd1 Nf7 14.f5 0-0 15.Bc4 Ne5 16.Bb3 d5 17.fe6 Nb3 18.ab3 Qb6 19.Kh1 (19.Nf5!? Rfe8 20.Na4 Qe6 21.Ba3=) 19...Qe6 20.Nf5 a6 21.Ba3 d4 22.Ne2 g6 (better is 22...Rfe8!?-/+) 23.Ne7 Qe7 24.Nd4 Qd7 25.Nf3 Nf3 26.gf3 Qd4 27.Qd2?? (better is 27.Ra2=) 27...Bf3!-+ 28.Rf3 Qa1 29.Bc1 Qd4 30.c4 Rae8 31.Bb2 Qg4 32.Rf2 Re6 33.Rf4 Qg5 34.Qf2 Rfe8 35.h4 (35.Bc3 Re2 36.Qg3-+) 35...Re1 36.Kh2 Qh5 37.Re4 R8e4 (37...R8e4 38.de4 Re2-+) 0–1. Kovacs,Lajos M (2290) – Nagy,Mihaly (2025), Cseppko op, 1996. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bb5 Bb7 7.Rb1 Nf6 8.0-0 Nd4 9.Nd4 cd4 10.e5 a6 11.Ba4 Bc6 12.ef6 dc3 13.Bc6 dc6 14.Qf3 Rc8 (14...Qd5!? 15.Qc3 gf6+=) 15.fg7 Bg7 16.dc3 0-0 17.c4 Qh4 18.Qf4 Qf4 19.Bf4 Rfd8 20.Rfd1 Bd4 21.Kf1 e5 22.Bg5 Re8 23.Ke2 Kg7 24.Rb3 Rc7 25.Be3 Re6 26.c5 Be3 27.Ke3 Rh6 28.Ke4 (28.h3 f5 29.Rb6 Rh4 30.Ra6 Re4 31.Kd2 Rf4+-) 28...Rh2+= 29.Ke5 Re7 30.Kd6 Re6 31.Kc7 Rh5? (better 31...Rg2 32.Rg3 Rg3 33.fg3 h5+=) 32.Rg3+- Kf6 33.Rf3 Kg6 34.Kb6 Rh4 35.Rd6 Rb4 36.Kc6 Rc4 (36...Rb2 37.Re6 fe6 38.Rc3+-) 37.c3 1–0. Naboka,S (2345) – Shirshov,Nikolay (2040), Chigorin Memorial (7), 2018. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bb5 Nge7 7.0-0 (7.Rb1 Rb8+=) 7...g6 (7...Rb8 8.Bc4+=) 8.Ba3 (better 8.Rb1+-) 8...d6 (better 8...a6!? 9.Ba4 Qa5+=) 9.e5+- Bg7 10.Ne4 (10.ed6!? Qd6 11.d4 Qc7 12.Bc6 Nc6 13.Bc5 Ba6+-) 10...de5+- 11.Bc5 (better 11.Rb1+-) 11...Qd5?? (11...0-0!? 12.Rb1 Bd7+-) 12.Re1 (12.Nfg5 0-0 13.Bc6 Nc6 14.Bf8 Kf8 15.Nh7 Ke7+-) 12...f5?? (better 12...0-0+-) 13.c4 Qd7 14.Nd6 Kf8 15.Ne5! Be5 (15...Ne5 16.Bd7 Pinning (16.Bd7 Deflection); 15...Be5 16.Re5) 16.Re5! Kg7 (16...Ne5 17.Bd7 Pinning (17.Bd7 Deflection)) 17.Qe2 Rd8 (17...a6 18.Ba4 Qc7+-) 18.Nc8 Rac8 19.Re6 Re8 (19...Qd2 20.Be7 Qe2 21.Re2 Rd4+-) 20.Re1 Kf7 (20...Kg8 21.d4 Nd4 22.Bd4 Qd4 23.Be8 Qc4 24.Qc4 Rc4 25.Re7+-) 21.Rd6 Qc7 (21...Qd6 22.Bd6 Ng8+-) 22.Qe6 Kg7 23.Rd7 (23.Rd7 Qd7 24.Qd7+-) 1–0. Thuesen,Mogens (2210) – Brozel,Sacha (2035), London Classic Open, 2016. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bc4 Be7 7.0-0 Na5 8.Bb5 Nf6 9.e5 Nd5 10.Nd5 ed5 11.d4 Qb6 (11...Rb8!? 12.Ba4 Nc4+=) 12.Rb1+/- 0-0 13.Ba3 Qc7 14.dc5 Bb7 15.Qd4 a6 16.Bd3 Rfc8 17.Qg4 Rab8 18.Bb2 g6 19.h4 Nc4 20.Ba1 Bc6 21.h5 (worse is 21.Bc4 dc4 22.Qd4 Bb5+=) 21...Bc5 22.hg6 (worse is 22.Bc4 dc4 23.hg6 hg6=) 22...hg6 23.Bg6! fg6 24.Qg6 Kh8?? (better is 24...Kf8 25.e6 de6+-) 25.Ng5 d6 26.ed6 1–0. Messina,Enrico (2130) – Gallo,Thomas Renato (1800), Napoli Parthenope op 1st, 2005. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bc4 Nf6 7.Qe2 Nd4 8.Nd4 cd4 9.Nb5 e5 (9...Bb7!? 10.f3 Bc5=) 10.Nd4!+- ed4 (10...Bb7!? 11.Nf3 Qc7+-) 11.e5+- Qe7 12.ef6 Qe2 13.Ke2 g6 (13...Rb8 14.fg7 Bg7 15.Re1+-) 14.Bb2 (14.Rb1 Bd6+-) 14...Bc5 (14...Bb7 15.Rhg1+-) 15.Kd3 Bb7 16.Bd4 Bd4 17.Kd4 0-0 18.f3 Bc6 (18...d5 19.Rab1+- (19.Bd5?! Bd5 20.Kd5 Rfd8 21.Ke4 Rd2+-)) 19.Rhe1 Rfe8 (19...d5 20.Bb3+- (20.Bd5?! Bd5 21.Kd5 Rad8 22.Kc6 Rd2+-)) 20.Re7 Re7 21.fe7 Re8 22.Re1 d6 23.Bd5 Bd7 24.c4 (24.Bb3 Be6 25.Be6 Re7+-) 24...Kg7 25.c5 dc5 26.Kc5 Kf6 27.Kd6 Ba4 (27...Be6 28.g4 g5+-) 28.Re4 Bb5 29.Rf4 (29.Rf4 Kg5 30.Rf7+-) 1–0. Rotov,Igor – Rauk,T (2155), 18th Puhajarve Rapid (4), 2017. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.g3 g6 7.Bg2 (7.Rb1 Nf6 (7...Bg7 8.Be2 Nf6 9.0-0 0-0 10.Re1 d6 11.Bc4 Ng4 12.Qe2 Bd7 13.a4) 8.Bc4 Bg7 9.0-0 0-0 10.d3 d5 11.Bb5 Bd7 12.Bf4 Qa5 13.Ne5) 7...Bg7 (7...Rb8 8.d3 Bg7 9.Bd2 Qa5 10.Ne2 Qc7 11.Rb1 Nf6 12.0-0 Rb1 13.Qb1; 7...Ba6 8.d3 Bg7 9.Bd2 Nf6 10.0-0 0-0 11.Rb1 Rb8 12.e5 Nd5 13.Qe2) 8.0-0 (8.Rb1 Ba6 9.Bf1 Bf1 10.Kf1 Nf6 11.Kg2 0-0 12.Qe2 Ng4 13.Rb5) 8...Nge7 (8...Rb8 9.e5 Nge7 10.d3 Ne5 11.Bf4 Nf3 12.Bf3 d6 13.Ne4) 9.e5 (9.Rb1 Ba6 10.Re1 0-0 11.e5 Qa5 12.Bb2 Rab8 13.Ne4) 9...Rb8 10.d4 (10.Re1 0-0= 11.d3 d5 12.a4 Nf5 13.Bg5) 10...Nd4 (10...cd4 11.Ne4 0-0 12.Bg5+= Ne5 13.Ne5) 11.Ne4 (11.Nd4 cd4 12.Qd4 (12.Ne4 Be5 13.Nd6) 12...Qc7= (12...Qa5 13.f4) 13.Re1; 11.Bg5 Nf3 12.Qf3 Be5 13.Rab1) 11...0-0 12.Bg5 (12.Nd4 cd4 13.Nf6+= (13.Bg5 Be5 14.f4-/+)) 12...h6 (12...Nf3!? 13.Qf3 Be5-/+) 13.Nf6 (13.Bf6!?+=) 13...Kh8+= 14.Bf4 (14.Nd4 cd4 15.Bc1 Nc6 16.Bc6 dc6+= (worse is 16...Bf6 17.ef6 dc6 18.Bh6+/-)) 14...Nec6 15.c3 Nf3 (worse is 15...Bf6 16.ef6 Nf3 17.Qf3 Qf6 18.Rfe1=) 16.Qf3 d5 (16...Bb7 17.Qg4-/+) 17.Qg4 (17.ed6 Bb7 18.Ne4 Na5=) 17...Ne7 (17...Ba6 18.Rfe1+=) 18.Qh4 (18.Qh3 h5+=) 18...Ng8 19.Bg5 Qc7 20.Rfe1 Rb2 21.g4 Ba6 22.Rac1 (22.Ng8!? Kg8 23.Bh6 Bh6 24.Qh6-/+) 22...Rfb8-/+ 23.Bh6 Bh6 24.g5 Kg7 (24...Be2 25.gh6 Qd8 26.a4-+) 25.f4? (better is 25.gh6!? Nh6 26.Nd5 ed5 27.Qf6 Kh7 28.Qa6=) 25...Be2 26.Re2? Re2-+ 27.Ng4 Bg5! 28.fg5 Rbb2 29.Bf3-/+ Rh2 30.Nh2+= Qe5 31.Ng4 Qf4 32.Rf1 Qd2 33.a3 0–1. Landriel,M (2270) – Flores,Di (2565), XV PRO AM Open, Villa Martelli ARG, 2008. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Rb1 Nf6

7.Bb5 Bb7 8.0-0 Qc7 9.Re1 Nd4 10.h3 Bd6 11.Bf1 Nf3 12.Qf3 Bh2 13.Kh1 Be5 14.Nb5 Qc6 15.c3 Ne4 (15...Bb8 16.d3 0-0+=) 16.d4 (16.Na3!? f5 17.Re4 Qe4 18.Rb7+=) 16...Bb8= 17.c4? (17.Bd3!? f5 18.Be4 fe4 19.Qh5 g6 20.Qc5 Qc5 21.dc5+=) 17...cd4 (better is 17...0-0-/+) 18.Nd4?? (18.Kg1 0-0 19.Nd4 Qc7+=) 18...Qc7 (better is 18...Qd6 19.Bf4 Qd4 (19...Qf4?! 20.Qf4 Bf4 21.Rb7-/+) 20.Rb7 Nf2 21.Kh2 Bf4 22.g3 Bd6-+) 19.Rb7?? (better is 19.Bf4 Qf4 20.Qf4 Bf4 21.Rb7-/+) 21…Qh2 0–1. Maier,C (2375) – Heberla,B (2560), European Rapid, 2014. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.Bb5 Rb8 8.e5 Nd5 9.Rb3 =.

7.Bb5 Qc7 8.0-0 (8.Bc6 dc6 9.e5 Nd7=) 8...Be7 (8...Rb8 9.a4=) 9.Re1 (9.Bc4 a6=) 9...0-0 10.e5 Ne8 11.d3 f6 12.Bf4 fe5 (12...Rb8!?=) 13.Bc6+/- Qc6 14.Ne5 (14.Be5 Worse is 14...d6 15.Bg3 e5=) 14...Qa6 15.Qf3 Bg5 (15...Nc7 16.Qg3 d6 17.Nf3+=) 16.Qa8 Bf4 17.Re2 (17.Rb8 Nc7 18.Qe4 Bd2=) 17...Nc7 (17...Nd6 18.Qb8 Nf7 19.Qc7=) 18.Qe4 (18.Qb8 Qd6 19.Nf3 Qa6+/-) 18...d5 19.Qa4 Qd6 20.d4 (20.Nf3 a6+/-) 20...Ba6 21.Re3 (21.Ree1!? Qe7 22.Nf3+/-) 21...Be3 22.fe3 Qd8 (better is 22...cd4!? 23.ed4 Qe7+=) 23.Nf3 ½–½. Ridameya Tatche,Jose Miguel (2140) – Osuna Munoz,Xavier (2105), Sants op, 2001. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.Bc4 Be7 8.0-0 0-0 9.d3 d6 10.Bg5 h6 11.Bd2 Nd7 12.Ne2 Qc7 13.a4 Rb8 14.Rb8 Qb8 15.a5 Qc7 16.Qa1 a6 17.Nf4 Bf6 18.Qa4 Nde5 19.Ne5 de5 (19...Be5 20.Nh5+=) 20.Nh5= Bg5 21.Bg5 hg5 22.Ra1 Bd7 23.c3 (worse is 23.Ba6 Ra8 24.Qb5 Nb4-/+) 23...Rb8 24.Ba6?? (better is 24.h3=) 24...Nb4-+ (24...Nb4 25.Qd1 Na6-+) 0–1. Kozachenko,Alexander (2010) – Gabrielian,A (2550), Vladimir Dvorkovich Mem, 2015. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.Bd3 h6+=.

7.h3 Be7 8.e5 Nd5 9.Nd5 ed5 10.g3 (10.c4 d4=) 10...Qc7 (10...0-0 11.Be2+=) 11.Qe2 (11.Bg2!?=) 11...Rb8 12.Rb8 Qb8 13.Qb5 Qb5 (13...Qc7 14.Bg2+=) 14.Bb5= 0-0 15.Ba3 a6 16.Ba4 Re8 17.0-0 c4 (17...Bf8 18.Bb2=) 18.Be7+= Re7 19.Rb1 h6 20.c3 (20.Bc6 dc6 21.Rb8 Rc7+=) 20...g6 21.g4 Kf8 22.Rb6 (22.Bc6 dc6 23.Rb8 Re8+=) 22...Ne5= 23.Ne5 Re5 24.f4 Re6 25.Rb8 Re8 26.Rb1 Re2 27.Kf1 Re8 (27...Rd2 28.Rb8 Ke7 29.Rc8 Ra2 30.Bd1=) 28.Kf2 Ke7 29.Re1 Kd8 30.Re8 Ke8 31.Ke3 Ke7 32.Kd4 Kd6 33.g5 hg5 34.fg5 Bb7 35.Bd1 Ke7 36.Kc5 1–0. Vaisman,Volodia (2390) – Lezot,Pierre, FRA–ch Seniors op, 2001. (=1.e4 e6 2.Nf3 c5 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

6.Bb5 Nd4

7.0-0 Nb5 8.Nb5 Ba6 9.Qe2 Nf6 10.Rb1 Bb5 11.Rb5 a6 (11...Rb8 12.a4+=) 12.Rb3+/- Be7 13.Bb2 0-0 14.Rb1 d5 15.Bf6 (15.ed5 Qd5 16.Be5 c4+=) 15...Bf6 16.e5 Be7 17.Rb7 c4 18.d4 (18.Qe3 Rc8+/-) 18...Re8 (18...cd3 19.cd3 Rc8 20.d4+=) 19.Qd2+/- h6 20.g4 f6 (20...Rc8!?+=) 21.Qe3+/- Qa5 (21...f5 22.gf5 ef5 23.Qf4+-) 22.R1b6 fe5 (22...Bd8 23.Rd6 Re7 24.Re7 Be7 25.Re6+-) 23.Ne5 (better is 23.Re6!? e4 24.Ree7 Re7 25.Re7 Qb4+-) 23...Ra7?? (better is 23...Qa3+/-) 24.Nc6 (24.Nc6 Bg5 25.Rb8 (25.Ra7 Qb6 26.Qe5 Bf6-/+) 25...Be3 26.Re8 (worse is 26.Na5 Bf2 27.Kf2 Rf7 28.Kg3 Rb8 29.Rb8 Kh7+-) 26...Kf7 27.Na5 Bf2 28.Kf2 Ke8 29.Re6 Kf8 30.Ke3+-; 24.Ra7 Qb6 25.Rd7 Qb1 26.Kg2 Qc2-/+) 1–0. Jenni,Florian (2510) – Heinatz,Gundula (2160), SUI, 1st Division, 2014. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.0-0 Nb5 8.Nb5 Bb7 9.Re1 (9.d3 Bc6 10.Na3 Nf6+=) 9...a6 (9...Rb8 10.d3+=) 10.Na3 d6 (10...Nf6 11.d3+=) 11.Rb1 Qc7 (11...Rb8 12.Bb2+-) 12.Nc4 Nf6 13.d3 (13.e5 Bd5 14.Nb6 Rb8 15.Nd5 Nd5+-) 13...Be7 14.Bd2 (14.Bf4 e5 15.Bd2 0-0+-) 14...Nd7 15.Bc3 (15.Ba5 Qc8+-) 15...0-0+= 16.Qd2 Bc6 17.Na5 (17.Qf4 e5 18.Qg3 Nf6+=) 17...Bb5 18.Ba1 (18.a4 Bc6=) 18...Rfb8 (18...Rab8 19.Nc4=) 19.c4 (19.h3 Nb6=) 19...Ba4=+ 20.Bc3 Rb6 (20...h6 21.h3=+) 21.Nb3 (21.Rb6 Qb6 22.Nb3 Rb8=+) 21...Rb7 22.Qb2 Bf6 (22...Rab8 A) 23.Bg7? Bb3 24.Bh8 Ne5 25.Be5 Ba4 (worse 25...de5 26.ab3 Rb3 27.Qb3 Rb3 28.Rb3+=) 26.Bd6 Rb2 27.Bc7 Rb1 28.Bb8 Rb8-+; B) 23.Qa3 Bc6 B1) 24.Qa6? Ra7 25.Ba5 Rb6 (25...Ra6?! 26.Bc7 Rb7 27.Ba5-/+) 26.Bb6 Nb6 (26...Ra6 27.Bc7 Ra7 28.Ba5+-) 27.Nc5 Ra6 28.Na6 Qa7-+; B2) 24.Rbd1=+) 23.Bf6= Nf6 24.Qa3 Bb3 25.Rb3 Rb3 26.ab3 a5 27.h3 Qb6 28.Ra1 Nd7 29.Qa4 Qb7 30.Nd2 (30.g3!?=) 30...Ne5=+ 31.Qb5 Exerts pressure on the isolated pawn 31...Qc7 32.d4 cd4 33.b4 h6 (33...g6 34.c5 dc5 35.Ra5 Ra5 36.Qa5 Qa5 37.ba5=+) 34.ba5=+ Rb8 35.Qa4 Nd3 36.a6 (36.Nb3 Qa7=+) 36...Nc5 37.Qa5 Qa7 38.Qa2? (better 38.f4-/+) 38...Rb6-+ 39.Rb1 (39.Qc2 e5-+) 39...Ra6 40.Qb2 e5 0–1. Rotov,Igor – Ladva,O (2510), 17th Puhajarve Rapid (12), 2016. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6 6.Bb5 Nd4)

7.0-0 Nb5 8.Nb5 Rb8 9.Qe2+=.

7.0-0 Bb7 8.Re1 Nf6 9.Rb1 Qc7 10.d3 Bd6 11.Bg5 (better is 11.h3!?=) 11...Nf3-/+ 12.Qf3 Bh2 13.Kh1 Be5 14.Ne2 0-0 15.Nf4 Ne4! 16.de4 (16.de4 f6 Combination; 16.Re4 Bd5 Double attack) 16...f6 17.Ne6 de6 18.Bc1 Qa5 19.Qe2 Rad8 20.Bc4 Bc8 21.Rb5 Qc7 22.Rb3 Bf4 23.Be3 Kh8 24.Rd3 h6 25.Red1 Rd3 26.cd3 f5 27.Bf4 Qf4 28.e5 Bb7 29.Re1 Qg5 30.f3 Qe7 31.Rb1 Bc6 32.Qf2 f4 33.d4 cd4 (33...Bd5!? 34.Bd5 ed5-/+) 34.Qd4+= Qh4 35.Kg1 Rd8 36.Qa7 Bf3 37.Rb8 Be4 38.Be6?? Qe1 (38...Qe1 39.Kh2 Qg3 40.Kg1 Qg2) 0–1. Vinal Gutierrez,Pedro (2190) – Ivanov,Jordan (2395), Pamplona op, 2004. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.0-0 Rb8 8.a4 Ne7 9.Ba3 Nec6 10.Bc6 Nc6 11.d4 Ba6 12.Re1 Qa5 13.Ne2 cd4 14.Bf8 Rf8 15.Ned4 Ne7 16.Nb5 Nc8 17.c4 f6 18.Nfd4 g6 19.e5 Bb7 20.Qg4 f5 21.Qh3 Rf7 22.Qa3 Be4 (22...a6 23.Nd6 Nd6 24.Qd6+/-) 23.Qc5 (23.f3 Bb7+-) 23...Qb6 24.Qa3 a6 (better is 24...Qa5!?=) 25.a5+/- Qb7 26.Nd6 Nd6 27.Qd6 Rc8 28.f3 Bd3 29.Ne6 de6 30.Qd3 Rd7 31.Qe3 Rc4 32.Rab1 Rb4 33.Rbd1 Rb5 34.Rd6 Rd6 35.ed6 e5 36.Qd2 (36.f4 e4 37.Qc3 Kd7=) 36...Qd5 37.Qh6 Qd6 38.Qh7 Ra5 39.Rc1 Rc5 40.Rb1 Rb5 41.Rc1 Rc5 42.Rb1 Kf8?? (42...Kd8 43.Qg8 Kc7 44.Qe8=) 43.h4 (better is 43.Rb8! Qb8 44.Qh8 Ke7 45.Qb8+-) 43...Rb5= 44.Rc1 Rb8 45.g3 Rd8 46.Qh8 Kf7 47.Qh7 Kf6 48.h5 Kg5 49.hg6 Qg6?? 50.Qh4 1–0. Orozco,Lu (1945) – Chirivi,Y (2165), ch–Panamerican U20 Girls, Cali COL, 2008. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.Ba4 Ba6 8.d3 g6 (8...Qa5 9.Bd2=) 9.0-0 (9.Ne5 Bg7 10.Bf4 Bb5 11.Bb5 Nb5 12.Nb5 Qa5 13.Bd2 Qb5=) 9...Bg7= 10.Bd2 Ne7 (10...Qa5 11.e5 Rd8 12.Re1+=) 11.Rb1 0-0 12.Nd4 cd4 13.Nb5 (13.Ne2 d5+=) 13...d5 14.f3 de4 15.fe4 Nc6 16.Qc1 Rb8 17.Bf4 (17.Qa3 Bb5 18.Bb5 Qc8=) 17...e5 (better is 17...Bb5 18.Bb5 Rb6=) 18.Bg5?? (better is 18.Bd2=) 18...Qa5-+ 19.Na7 Qa4 (19...Na7?! 20.Bb3 Nc6 21.Qd2-+) 20.Nc6 Qc6 0–1. Mindeguia Guruceaga,JJ (2120) – Gonzalez de la Torre,S (2290), Pamplona op, 2001. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5 5.Nc3 Nc6)

7.Ba4 Rb8 8.h3+=.

7.Rb1 a6 8.Bd3 Ne7 =.

5.Bc4 Nc6

6.0-0 Rb8 7.h3 Nf6 8.Nc3 Bd6 9.d3 0-0 10.Nb5 Bc7.

6.0-0 Be7 7.Nc3 Nf6 8.e5 Ng4 9.Qe2 Rb8 10.h3 Nh6.

6.0-0 Nf6 7.Nc3 Be7 8.e5 Ng4 9.Qe2 Rb8 10.h3 Nh6.

6.Nc3 Rb8 7.0-0 Qa5 8.Qe2 Be7 9.h3 Nf6 10.e5 Nh5.

6.Nc3 d6 7.0-0 Nf6 8.d4 cd4 9.Nd4 Nd4 10.Qd4 Be7 11.Ba3 0-0 12.Rab1 Nd7 13.Bd6 Nb6 14.e5 Bd6 15.ed6 e5 16.Qe4 Qd6 17.Rb6 (better is 17.Bd3!? g6 18.Rb5+=) 17...Qb6= 18.Bd3 g6 19.Rb1 Bf5 20.Qe5 Rfe8 21.Qg3 Bd3 22.h3 (22.cd3?? Qb1! 23.Nb1 Re1) 22...Qd4 23.Qd3 Qd3 24.cd3 Rad8 25.Rd1 Rd4 26.Kf1 Rc8 27.Ne2 Ra4 (27...Rb4!?-+) 28.Rd2+= Rb8 29.f3 Rab4 30.Nc3 Rb2 31.Rb2 Rb2 32.a4 Rd2 33.Nb5 a6 34.Nc7 a5 35.Na6 (35.Nb5-+) 35...Rd3 36.Nc5 Rd4 0–1. Matseyko,Ekaterina (2230) – Muzychuk,Anna (2365), UKR–ch U20 Girls, 2004. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.bc5 bc5)

6.Nc3 Be7 7.0-0 Nf6 8.e5 Ng4 9.Qe2 Rb8 10.h3 Nh6.

6.Nc3 Nf6 7.0-0 Be7 8.e5 Ng4 9.Qe2 Rb8 10.h3 Nh6.

4.d4 cd4

5.Nd4 Bb4+= 6.c3 Bc5 7.Bf4 d6 8.e5 d5 9.Bd3 a6 10.Nd2 Qd7 11.Be3 Nc6 12.f4 f5 13.g4 g6 14.h3 Nd4 15.Bd4 Qc7 16.Nb3 Nh6 17.g5 Nf7 18.Kf2 Bb7 19.a4 a5 20.Qe2 Ke7 21.h4 (worse is 21.Nc5 bc5 22.Be3 h6 23.gh6 Rh6-+) 21...h5 22.Rhc1 Rhc8 23.Rab1 Nd8 24.Rc2 Rab8 25.Kf3 (25.Nc5? bc5 26.Be3 c4 27.Bf5 ef5-+ (27...gf5?! 28.Rcb2-/+)) 25...Kf7 26.Be3?? (26.Kg2 Kg8+=) 26...Be3 (better is 26...d4 27.Kg3 de3-+) 27.Qe3?? (27.Ke3 Qe7-/+) 27...Bc6 (27...d4 28.Ke2 de3 29.Ke3-+) 28.Bb5?? (28.Qd4 Nb7 29.Ba6 Qd7-/+) 28...Bb5 (better is 28...d4 29.Kg3 de3-+) 29.ab5-/+ Qc4 30.Nd4 Qa4 31.Rbb2 Rc7 32.Ra2 Qc4 33.Qe2 Rbc8 34.Ra1?? Qd4!!-+ (34...Qd4 35.cd4 Rc2-+) 0–1. Bevilacqua,Roberto – Abramson,Horacio (2215), Vicente Lopez op, 1993. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.d4 cd4)

3.Nf3 Qb6

4.bc5= Qc5 5.d4 Qc6 6.Bd3+=.

4.bc5= Bc5 5.d4+= Bb4 6.c3 Ba5 (6...Be7 7.c4+=) 7.Bd3 (7.Nfd2 d5+=) 7...d5 (7...d6 8.Qa4 Bd7 9.Qb3=) 8.e5 (8.ed5 Nf6 9.de6 Be6 10.Qa4 Bd7 11.Qa3+-) 8...Ne7 9.Ba3 Qc7 (9...Nf5 10.g4 Qc7 11.Qc1=) 10.0-0 a6 11.Qc2 (11.Ng5 h6 (11...Bc3?? 12.Bd6 Qd8 13.Nc3+-) 12.Qh5 g6+=) 11...h6 12.Rc1 Nbc6 13.Nbd2 Bb6 (13...Bd7 14.Bf1+=) 14.Nb3 (14.Rab1 Ba5+=) 14...0-0 (14...Bd7 15.Bd6 Qd8 16.Be7 Ne7 17.a4+=) 15.c4 Qd8 16.cd5 (better is 16.Be7 Ne7 17.cd5 ed5 18.h3+=) 16...Qd5?? (better is 16...ed5!? 17.h3 f6+/-) 17.Be4 (better is 17.Bd6 Rd8 18.Bc4 Rd6 19.Bd5 (19.ed6?! Qd6 20.Qe4 Bd7+/-) 19...Rd5 20.Qd2+-) 17...Qd8+/- 18.Bc6 bc6 19.Be7 (19.Rab1!?+-) 19...Qe7+/- 20.Qc6 Qb7 (20...Qa7 21.Qa4+/-) 21.Rab1 Qa7 22.Nc5 Bc5 (22...Rb8!?+/-) 23.dc5+- (23.Qc5?! Bb7+/-; 23.Rc5?! Rb8 24.Rcc1 Rb1 25.Rb1 Bd7+=) 23...Rb8 (23...a5 24.Rd1+-) 24.Rb8 (better is 24.Qd6!? Rb7 25.c6 Rc7+-) 24...Qb8 25.Qb6 Bb7?? (better is 25...Bd7+/-) 26.Rb1+- Rd8 (26...Qc8 27.Qb7 Qb7 28.Rb7 Rc8+-) 27.c6 (27.c6 Bc6 28.Qb8 Rb8 29.Rb8 Kh7 30.Rc8+-) 1–0. Volbracht,Michael (1760) – Kapp,Wolfgang, Bochum–ch, 2001. (=1.e4 c5 2.Nf3 e6 3.b4 Qb6)

4.bc5 Bc5 5.d4 Be7 6.e5 Nc6 7.c3 d6 8.Ba3 (8.Nbd2 Qc7 9.ed6 Bd6+=) 8...de5= 9.Be7 (9.Ne5!? Ne5 10.de5=) 9...Nge7-/+ 10.de5 0-0 11.Bd3 (11.Nbd2 Qa5 12.Nb3 Qc3 13.Qd2 Qd2 14.Nbd2-/+) 11...Rd8 (better 11...Qb2 12.Nbd2 Qc3-+) 12.Bh7?? (better 12.0-0=) 12...Kh7-+ 13.Ng5 (13.Qe2-+) 13...Kg6 14.Qc2 (14.Qg4 Ne5 15.Qe4 Nf5 16.Qe5-+) 14...Nf5 (better 14...Kg5 15.h4 Kh6 16.g4-+) 15.Ne4? (better 15.Nf3 Qc7 16.g4 Ne5 17.gf5 Kf6 18.Ne5 Qe5 19.Qe2 Qe2 20.Ke2-+) 15...Ne5 16.Ng3 (16.0-0-+) 16...Nd3 17.Kf1 Ng3 (17...Nf2 18.Nf5 ef5 19.Qf2 Rd1 20.Ke2 Qb2 21.Ke3 Rd3 22.Kd3 Qf2 23.c4-+) 18.hg3 e5 (18...f5 19.Qe2 Nf2 20.Qh5 Kf6 21.Qh4 Kf7 22.Qh5 Ke7 23.Qg5 Kd7-+) 19.Qd2 (19.Rh4 Bf5 20.g4 Be4-+) 19...Bf5 (19...Nf2 20.Qd8 Qd8 21.Kf2 Qb6 22.Kf3 e4 23.Kf4 Qf2 24.Ke5 f6 25.Kd5 Be6 26.Ke6 Qf5 27.Ke7 Qc5 28.Kd7 Qc6 29.Ke7 Re8) 20.Qe2 (20.g4 Bg4 21.Na3-+) 20...Qf6 (better 20...Nf2 21.Qh5 Kf6 22.Qh4 g5-+) 21.Qh5 1-0. yamahdi2014 (2400) - onubense (2425), Rated Bullet game, lichess.org, 2015. (=1.e4 B40: Sicilian: 2...e6, Unusual lines 1...c5 2.Nf3 e6 3.b4 Qb6)

3.Nf3 Nc6

4.b5 Nd4 5.Bb2 Nf3 6.Qf3 d6 7.Bc4 Nf6 8.0-0 Be7 9.Re1 0-0 10.Nc3 Rb8 11.Rad1 e5 12.h3 Be6 13.Nd5 Nd5 14.ed5 Bd7 15.c3 (15.Bc3 Ra8=) 15...f5 (15...Qa5 16.d4 Bb5 17.Bb5 Qb5 18.Qe2=+) 16.d3 b6 (16...Qe8 17.a4=) 17.a4 Bh4 18.g3 Bg5 Black plans f4 19.Bc1 (19.Ra1 Qe8=) 19...Bc1 20.Rc1 f4 21.g4 Qg5 22.Qg2 (22.Kh2 Qh4=) 22...f3 23.Qg3 Rf4 24.Re4?? (24.Ra1 h5=+) 24...Rbf8 (better 24...Re4 25.Ra1 Rf4-+) 25.Rce1 h5 26.h4? (26.R1e3!?-/+) 26...Qg4 (26...Re4 27.de4 Qd2 28.Re3-+) 27.Qg4-/+ Rg4 28.Rg4 hg4 29.d4 (29.Ra1!?-/+) 29...cd4 30.cd4 ed4 (30...Rf4 31.Rd1-+) 31.Re4-/+ Bf5 32.Rd4 g6 33.Kh2 Kg7 34.Kg3 Rf7 35.Bd3 Kf6 36.Kf4 Rc7 37.Rc4 Rh7 (better 37...Re7 38.Bf5 gf5-/+) 38.Rc6?? (38.Bf5 gf5 39.Rc6 Rh4 40.Rd6 Ke7 41.Re6 Kd7 A) 42.Kf5?? g3 43.fg3 f2 (43...Ra4?! 44.Rf6=) 44.gh4 f1Q 45.Kg6 Qd3 46.Kh6 Qd2 47.Kg6 Qd5-+; B) 42.Rf6=) 38...Bd3-+ 39.Rd6 Ke7 40.Re6 Kd7 41.Rf6 Bf5 (41...Rh4 42.Rf7 Kd6 43.Ra7 g5 44.Ke3-+) 42.Kg3 Ke7 43.Rc6 Bd7 (better 43...Rh8 44.a5-+) 44.d6?? (44.Rg6 Rh5 45.Rg8-+) 44...Ke6 45.Rc3 (45.Rc4 Kd6 46.Rc1 g5 47.Rd1 Ke5-+) 45…Kd6 (45...Kd6 46.Re3 Re7 47.Re7 Ke7-+) 0-1. Keru (2355) - lama17 (2210), Rated Blitz game, lichess.org, 2015. (=1.e4 B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6 1...c5 2.Nf3 Nc6 3.b4 e6)

4.b5 Nd4 5.c3 Nf3 6.Qf3 g6 7.Bc4 Bg7 8.0-0 Ne7 9.Bb2 0-0 10.d4 d5 11.Bd3 c4 12.Bc2 Bd7 13.a4 Qb6 (13...a6!? 14.ba6 Ra6=) 14.Nd2 a6 15.Rfb1 ab5 16.Ba3 Rfe8 17.Bc5 Qc7 18.ab5 Ra1 19.Ra1 Bb5 20.e5 (20.Rb1 Qc6=) 20...Bc6 (better is 20...Be5!? 21.de5 Qc5-/+) 21.Qd1 Nc8 22.h4 Bd7 23.Bb4 Bf8 24.Bf8 Rf8 25.h5 Qd8 26.Qg4 Kg7 27.Nf3 f5 28.Qg3 Kh6 29.hg6 hg6 30.Nh2 Qg5 31.Qg5 Kg5 32.Ra8 Re8 33.Ba4 b5 34.Bc2 Nb6 35.Nf3 Kh6 36.Ra6 Rb8 37.Nd2 Rb7 38.f4 Nc8 39.Kf2 Ra7 40.Ra7 Na7 41.Bd1 Nc6 42.g3 Nb8 43.Nf1 Na6 44.Ne3 b4 45.cb4 Nb4 46.Bc2? Bb5 47.Ke2 Nc6 48.Kd2 Nd4 49.Kc3 Ne2 (49...Ne2 50.Kb4 Be8-+; worse is 49...Nc2 50.Nc2 Kh5 51.Nd4-+) 0–1. Winter,Malcolm – Shim Ng Min,Francis, SF–2011–0-00114, 2011. (=1.e4 c5 2.Nf3 e6 3.b4 Nc6)

4.b5 Nce7 5.Bb2 b6 6.Ng5 Ng6 7.Nf3 Bb7 8.Nc3 d6 9.Bc4 Be7 10.d4 h6 11.d5 e5 12.0-0 Nf6 13.Nd2 0-0 14.Ne2 Nd7 15.Ng3 Bc8 16.Nf5 Nf6 17.Kh1 Re8 18.Qf3 Bf8 19.Qb3 Bf5 20.ef5 Ne7 21.f4 Nc8 (21...Qd7 22.Qd3+=) 22.fe5 de5 23.Rad1 Nd6 24.Nf3 Nc4 25.Qc4 Bd6 26.Nh4 (26.Rfe1 e4 27.Bf6 Qf6 28.Re4 Qf5=) 26...Qc7 (26...a6!? 27.a4 ab5 28.ab5 e4+=) 27.Nf3= Rad8 28.Nd2 Kh8 29.Ne4 Ne4 30.Qe4 f6 31.Rf3 Qf7 32.Rh3 Rd7 33.Rdd3 Red8 34.c4 Rg8 35.Rdg3 Bf8 36.Rg6 Kh7 37.a4 (37.Bc1 a5+-) 37...Rd6 38.g4 Rd7 39.Rh5 (39.g5 Re7+-) 39...Qe7 40.h4 Rh8? (better is 40...Rd6+/-) 41.g5+- fg5?? (41...Rd6+-) 42.f6 (42.f6 Kg8 43.fe7 Re7 44.hg5+-; 42.Qe5?! Qe5 43.Be5 gh4 44.Rh4 Rf7+/-) 1–0. Leenhouts,Koen – Van Beek,Guido (1735), NLD–ch U12 Hengelo, 1995. (=1.e4 c5 2.b4 e6 3.Nf3 Nc6)

4.b5 Nce7 5.d4 cd4 6.c3 (6.Qd4 d5+=) 6...Ng6 (6...d5!? 7.e5 dc3 8.Nc3 Ng6=+) 7.cd4+= a6 (7...d5 8.e5 Nh6=) 8.b6 (better 8.Qb3!?+=) 8...Qb6= 9.Be2 (9.Bd2 Nf6 10.Nc3 Qc6=) 9...Bb4 10.Bd2 Bd2 (10...Nf6!? 11.Qb3 Bd2 12.Nbd2 Qb3 13.ab3 d6=+) 11.Nbd2 h5 (11...Nf6!?=) 12.0-0+= Nf6 (12...N8e7 13.Nc4 Qc7 14.e5+/-) 13.Rb1 (13.e5!? Nd5 14.Nc4+-) 13...Qc7 (13...Qd8 14.e5 Nd5 15.Rc1+=) 14.h3 (14.e5 Nd5 15.Rc1 Qd8+/-) 14...b5 (14...Nf4 15.e5 N6d5 16.Ne4+=) 15.Re1 (15.e5!? Nd5 16.Ne4=) 15...Bb7= 16.Rc1 Qb8 (16...Qb6 17.e5 Nd5 18.Ne4=) 17.Bf1 White plans e5 (17.e5 Nd5=) 17...h4 18.d5 (18.a4 0-0=) 18...Qa7 (18...0-0 19.a4-/+) 19.d6 (19.a4 0-0=) 19...Rc8 (19...0-0!?-/+) 20.Rc8= Bc8 21.e5 (21.Qb3!?=) 21...Nd5=+ 22.Ne4 Ndf4 (better 22...Bb7=+) 23.Qd4? (better 23.a4 b4 24.Qb3-/+) 23...Bb7?? (better 23...Qd4 24.Nd4 Rh5-+) 24.Qa7+- Bc6 25.Qb8 1-0. Lance5500 (2545) - JohnMadden (2210), lichess.org, 2016. (=1.Nf3 c5 2.e4 Nc6 3.b4 e6)

4.b5 Nge7?? 5.bc6+- bc6 6.Nc3 Ng6 7.Rb1 d5 8.h4 Be7 9.h5 Nf8 10.Ne5 Qc7 11.Nc6! Qc6 12.Bb5 Qb5 13.Nb5 Rb8 14.Nc7 (14.Nc7 Kd7 15.Rb8 Kc7 16.Qf3+-) 1–0. pietrek – jola, rancho, 2009.

4.c3 cb4+= 5.a3 bc3 6.Nc3 d6 7.Bb5 Bd7 8.0-0 Be7 9.Bb2 Nf6 10.d3 0-0 11.Rc1 a6 12.Ba4 Rc8 13.Bc6 bc6 14.Qe2 Qa5 15.e5 Nd5 16.ed6 Bd6 17.Ne4 Be7 (17...Ba3? 18.Ra1 Nf4 19.Qe3+-) 18.Nfg5 (18.Ne5!? Qc7 19.Nc5 Bc5 20.Rc5-/+) 18...Nf4-/+ (18...Ba3 19.Ra1 Nf4 20.Qe3+-) 19.Qf3 Bg5 (better is 19...e5 20.g3 f6 21.gf4 fg5-+) 20.Ng5?? (better is 20.Rc5 Qb6 21.Rg5 Qb2 22.Qf4+=) 20...Qg5-+ 21.g3 Nd5 22.h4 Qg6 23.Rc4 Nf6 (better is 23...f6!? 24.h5 Qf7 25.Bd4-+) 24.Bf6 Qf6 (worse is 24...gf6 25.Rg4 e5 26.Rg6 fg6 27.Rb1+=) 25.Rf4 (25.Qf6 gf6 26.Rg4 Kh8-+) 25...Qc3 26.a4 c5 27.Qe3 c4 28.Qa7 (28.dc4 Qe3 29.fe3 e5-+) 28...Ba4 29.Qb7 Bb5 30.Rf7 cd3 31.h5 Rf7 (31...Rf7 32.Qe4 d2-+) 0–1. Hughes,Peter – Arut,Marcos, RN–2006–0-00006, 2006. (=1.e4 c5 2.b4 e6 3.Nf3 Nc6)

4.bc5 Bc5

5.Bb2 Qb6?? 6.d4?? (6.Bg7 Bf2 7.Ke2 Nd4 8.Kd3 Qa6 9.Kc3 Qa5 10.Kb2 Nf3 11.Bh8+- (11.gf3?! Bd4 12.Bd4 Qb4 13.Kc1 Qd4=)) 6...Qb2-+ 7.dc5 Qa1 8.Bd3 (8.a3 Nge7-+) 8...Ne5 (8...Qa2!? 9.Nbd2-+) 9.Ne5 (9.0-0 Nh6-+) 9...Qe5 10.0-0 Qc5 11.Nd2 (11.Qg4 Qe5-+) 11...a6 (11...Nf6 12.Re1 d6 13.Nb3-+) 12.Qa1 (12.Qg4 g6-+) 12...Qg5 (better 12...e5!? 13.Nc4-+) 13.f4 0–1. Garcia Carey,O (2350) – Hernandez Torres,J (2305), Santa Clara CUB (2), 2018. (=1.e4 c5 2.b4 e6 3.Nf3 Nc6 4.bc5 Bc5)

5.Bb2 Bf2 6.Kf2 Qb6 7.Ke1 Qb2=+.

5.c3 Be7 6.d4 Qc7 7.Bd3 a6 (7...d5 8.Nbd2+=) 8.0-0+= h5 (8...d6 9.c4+=) 9.Re1 Nf6 10.e5 Ng4 11.Nbd2 Nh6 (11...d5 12.Rb1+=) 12.h3 d6 13.Ne4 (13.ed6 Qd6 14.Ne4 Qc7+/-) 13...de5+= 14.de5 (14.Ne5 Ne5 15.Bf4 f6+=) 14...Ne5 15.Ne5 Qe5 16.Be3 (16.Ba3 Ba3 17.Qa4 Bd7 18.Qa3 Nf5=) 16...Qc7 (16...Qa5 17.c4=) 17.Qd2 (17.Qh5!? e5 18.Rab1+=) 17...Nf5=+ 18.Bf4 Qd8 (18...e5 19.Ng3 ef4 20.Nf5 Bf5 21.Bf5=) 19.Qc2 Kf8 (19...Bd7!?=) 20.Rad1+= Nd6?? (better 20...Qa5+=) 21.Nd6+- Bd6 22.Bc4 (better 22.Be4+-) 22...Qc7 (22...Bd7 23.Rd6 Qc8+-) 23.Bd6 Qd6 24.Rd6 Ke7 25.Red1 b5 26.Qe4 (26.Qd2 Re8 27.Rd8 f6 28.Qd6 Kf7 29.Re8 Kg6 30.Qg3 Kf7 31.Be2 g5 32.Qc7 Bd7 33.Qd7 Kg6 34.Bd3 f5 35.Re6) 26...Rb8 27.Qc6 Bb7 28.Qc7 (28.Rd7 Kf6 29.Rf7 Kg5 30.Rg7 Kf6 31.Qe6 Kg7 32.Rd7 Kf8 33.Qe7) 28...Kf6 29.Rd7 Rbc8 (29...Kg5 30.Qg3 Kh6 31.Qf4 Kg6 32.Bd3 Be4 33.Be4 f5 34.Qg3 Kh7 35.Qg7) 30.Rf7 Kg5 (30...Kg6 31.Bd3 Be4 32.Be4 Kh6 33.Qf4 g5 34.Qf6) 31.Rg7 (31.Qe5 Kg6 32.Qg7) 31...Kf5 (31...Kf6 32.Qf7 Ke5 33.Rg5 Ke4 34.Bd3) 32.Qf7 Ke4 (32...Ke5 33.Rg5 Ke4 34.Bd3) 33.f4 (33.Re1) 33...Rcg8 (33...Rc4 34.Qe6 Kf4 35.Rf7 Kg5 36.Qf6) 34.Qg6 (34.Re1) 34...Ke3 35.Qd3 (35.Qd3 Kf4 36.Rf1 Bf3 37.Rf3 Ke5 38.Qd4; 35.Rd3 Kf4 36.Rf7 Ke5 37.Qe6) 1-0. zsolti_83 (2415) - Myts (2220), Rated Bullet game, lichess.org, 2017. (=1.e4 c5 2.Nf3 Nc6 3.b4 e6)

5.d4 Qa5 6.Bd2 Bb4 7.c3 Be7 8.Bd3 a6 9.0-0 d6 10.a4 Nf6 11.c4 Qc7 12.Nc3 Na5 13.e5 de5 14.de5 Nd7 15.Re1 Nc4 16.Bc4 Qc4 17.Re4 Qc7 18.Rc1 Qb8 19.Be3 0-0 20.Bg5 Bg5 21.Ng5 Ne5 22.Qh5 (better is 22.Nh7!? Kh7 23.Qh5 Kg8 24.Re5= (worse is 24.Qe5 Qe5 25.Re5 b6-/+)) 22...h6-/+ 23.Rh4? (better is 23.Ne6 Be6 24.Qe5 Qe5 25.Re5-/+) 23...Ng6 24.Nce4 (24.Nge4 Nh4 25.Qh4 b6-+) 24...Qe5 (better is 24...Nh4 25.Qh4 f5 26.Nc5 hg5 27.Qg5-+) 25.Nf3 Qh5 26.Rh5 Nf4 27.Nf6 (27.Rhc5 Ne2 28.Kf1 Nc1 29.Rc1-+) 27...gf6 28.Rh6 (28.Rhc5 Ne2 29.Kf1 Nc1 30.Rc1 b5-+) 28...Ne2 29.Kf1 Nc1 30.Rf6 Bd7 31.Ne5 (31.Rf4 Rfd8-+) 31...Ba4 32.Rf3 Bb5 33.Ke1 Ne2 34.Kd2 (34.Re3 Nd4 35.Rg3 Kh7-+) 34...Rad8 35.Ke3 a5 36.Rh3 a4 (better is 36...f6 37.Nf3-+) 37.f3 (37.Rh5-+) 37...a3 38.Rh4 Kg7 0–1. Graff,John – Shahidehfar,Alireza, CalChess State–ch, 1995. (=1.e4 c5 2.b4 e6 3.Nf3 Nc6 4.bc5 Bc5)

5.d4 Bb4 6.c3 Ba5 7.d5 ed5 8.ed5 (worse is 8.Qd5 Nf6 9.Qd3 Qe7-/+) 8...Nce7 9.d6 Nf5 10.Qd5 Nd6 11.Qd6 Qe7 12.Qe7 Ne7 13.Bc4 0-0 14.0-0 d5 15.Bb3 Be6 16.h3 Rac8 17.Bg5 Rfe8 18.Ba4 Nc6 19.Rd1 h6 20.Bf4 1–0. Sidenius,Per – Boudouma,Omar, ICCF–Cup8 V008 corr, 1990. (=1.e4 c5 2.Nf3 e6 3.b4 Nc6 4.bc5 Bc5)

5.d4 Bb6 6.c3 d5 7.e5 Bd7 8.Bd3 Nge7 9.0-0 Qc7 10.Ba3 0-0-0?? (better is 10...Rc8+=) 11.Bd6+- 1–0. Simon,Laurent (1670) – Boggio,Jean, FRA–ch op–A Paris, 1994. (=1.e4 c5 2.Nf3 e6 3.b4 Nc6 4.bc5 Bc5)

5.d4 Bb6 6.c3 d6 7.Bd3 e5 8.d5 Nce7 9.a4 h6 (9...f5 10.ef5 Nf6 11.Bb5 Bd7 12.Ng5=) 10.a5 Bc5 11.Nbd2 a6 12.Nc4 f5 13.ef5 (13.Ba3 Qc7 14.Bc5 Qc5 15.Qa4 Bd7+=) 13...Nf6 (13...Nd5 14.Ba3 Qc7 15.Bc5 Qc5 16.Nh4=) 14.Nh4 (14.Be3 e4 15.Nb6 Be3 16.fe3 Bf5 17.Qa4 Bd7 18.Nd7 Qd7 19.Be4 Rc8+=) 14...0-0 (14...e4 15.Bc2=) 15.0-0 (15.Ne3 e4 16.Be2 Be3 17.Be3 Nfd5=) 15...Nfd5 Pawn f5, live or die! 16.Ne3 (16.Qb3 A) 16...Bf5? 17.Nf5 Kh8 18.Ng3+- (18.Qb7?! Rb8 19.Qa6 Nf5+/-); B) 16...Rf7=) 16...Nf4=+ 17.Bc2 d5 (17...Bd7!?=+) 18.g3 Nh3 19.Kg2 g5 (19...Ng5 20.Nd5 Qd5 21.Qd5 Nd5 22.Bb3=) 20.Kh3 (20.fg6!? Qd6 21.Rb1+=) 20...gh4= 21.Qh5 Be3 (21...Qd6 22.g4=) 22.Be3 (22.fe3 Qc7 23.g4 A) 23...Qc3 24.f6 Bf5 25.Rf5 (25.gf5?! Rf6 26.Ra2 e4+-) 25...Qc2 26.fe7 Rf5 27.gf5+-; B) 23...Bd7+-) 22...Bf5 23.Bf5 Rf5 24.Qh6 Qd7 25.Kg2 (25.Kh4?? Raf8 26.g4 R8f6-+) 25...d4 (25...hg3 26.fg3 Raf8 27.Rae1=+) 26.cd4 ed4 27.Rad1 (better 27.Rfd1 Rd5 28.Bd2 hg3 29.Ra3=) 27...d3 (better 27...h3 28.Kg1 Qc6 29.Qc6 Nc6 (worse 29...bc6 30.Rd4 Ra5 31.Rg4 Kf7 32.Rh4+=) 30.Bd4 Ra5=+) 28.Qh4+/- (28.gh4?! Qd5 (worse 28...Ra5 29.Rg1 Kf7 30.Qh7 Ke8 31.Kf1+=) 29.Kg1 Rd8=+) 28...Rd8 29.Qg4 Kf7 30.Kg1 (30.Bb6 Qd5 31.f3 Rc8+/-) 30...Qc6 (better 30...Ra5!? 31.Qc4 Qd5=) 31.Bb6 Qe6?? (better 31...Rd7+/-) 32.Bd8+- Nd5 (32...Nc6 33.Bc7 Qd5 34.f4 Qd4 35.Rf2+-) 33.Bb6 (33.Rb1 Qd7 34.Rfe1 Kf8+-) 33...Nc3 (33...Nf6 34.Qb4 Rb5 35.Qf4+-) 34.Rd3 Ne2 (34...Nd5 35.Rf3 Rf3 36.Qf3 Kg6 37.Rd1 Nb6 38.ab6 Qb6 39.Qe4 Kf6 40.Qf4 Kg6 41.Rd5+-) 35.Kh1 Ng3 (35...Qc6 36.f3 Rd5+-) 36.Rg3 (worse 36.fg3 Rf1 37.Kg2 Qg4 38.Kf1 Qf5 39.Ke2 Qe4 40.Re3 Qg2 41.Kd3 Qh2=+) 36...Qc6 37.f3 Rg5 38.Qg5 (38.Qg5 Qh6 39.Qg8 Ke7 40.Qd8 Ke6 41.Re1 Kf5 42.Qd5 Kf6 43.Bd4) 1-0. Bellahcene,B (2505) - Dobrov,V (2475), Titled Tuesday 4th May, 2021. (=1.e4 B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6 1...c5 2.Nf3 Nc6 3.b4 e6)

5.d4 Bb6 6.c3 Nge7 7.Bd3 Ng6 8.0-0 0-0 9.e5 Nce7 10.Bg5 f5 11.h4 h6 12.Bd2 Nd5 13.g3 Ba5 14.Ne1 Qc7 15.Qh5 Kh7 16.Nf3 Nde7 (16...Nc3?? 17.Nc3 Ne7 18.Nb5+-) 17.g4 Nh8 18.g5?? (better is 18.Na3+=) 18...d5?? (18...g6 19.Qh6 Kg8-+) 19.gh6 g6 20.Ng5 Kg8 21.h7 Kg7 22.Qf3 Nf7 23.h5 gh5? (better is 23...Ng5!? 24.Bg5 Kh7+/-) 24.Qh5 Ng6? (better is 24...Nc6+-) 25.Kh1 Nfh8 26.Rg1 Qe7 (26...Qd8 27.Nf3 Kf7+-) 27.Nf3 Kf7 28.Bg5 Qe8 (28...Bd8 29.Be7 Be7 30.Nbd2+-) 29.Bf6 Bd7 30.Ng5 1–0. Ng,Willy – Best,Herb (1700), 2011–ServTourn Final, 2011. (=1.e4 e6 2.Nf3 c5 3.b4 Nc6 4.bc5 Bc5)

5.d4 Be7 6.c3 Nf6 7.Bd3 d6 8.0-0 0-0 9.Re1 Bd7 10.Nbd2 Rc8 11.Bb2 a6 12.Rc1 b5 13.c4 Nb4 14.Bb1 bc4 15.Nc4 d5 16.Ncd2 de4 17.Rc8 Qc8 18.Ne4 Bc6 19.Nf6 Bf6 20.Ne5 Bd5 21.a3 Nc6 22.Ng4 Be7 23.Qd3 g6 24.Qa6?? (better 24.Ne3=) 24…Qa6-+ (24...Qa6 25.Bc2 Rb8-+) 0-1. mikromurks (2360) - almasssss (2270), Rated Blitz game, lichess.org, 2020. (=1.e4 c5 2.Nf3 Nc6 3.b4 e6)

5.d4 Be7 6.Bd3 d6 7.0-0 Nf6 8.c3 0-0 9.Qe2 a6 10.Nbd2 b5 11.a4 b4 (11...ba4!? 12.Ra4 Qd7+=) 12.e5+/- de5 13.de5 (13.Ne5?! Bb7 14.Ne4 Nd5 15.Nc6 Bc6+=) 13...Nd5 14.Qe4 g6 15.c4 f5 16.ef6 Bf6 17.cd5 (better is 17.Rb1!? Nde7 18.Nb3+=) 17...ed5-/+ 18.Bc4 Ba1?? (better is 18...Ne7 19.Ne5 Be6-/+) 19.Bd5+/- Kg7 20.Bc6 Ra7 (20...Rb8 21.Nb3 Bc3 22.Bf4+-) 21.Nb3 Bf5 22.Qe3 (better is 22.Qb4 Bf6 23.Nbd4+-) 22...Bc3?? (22...Rc7 23.Na1 Rc6 24.Bb2 Kg8 25.Qb3 Be6 26.Qb4+-) 23.Nbd4 (better is 23.Qa7!? Rf7 24.Bh6 Kh6 25.Qf7 Qd6+-) 23...Qd6?? (23...Qe7 24.Qh6 Kh8 25.Be3+-) 24.Qh6 (better is 24.Nf5 gf5 25.Qa7 Rf7 26.Qa8+-) 24...Kg8 25.Bf4 (25.Nf5?! Qc6 26.Qe3 Qd7 27.Nh6 Kg7+/-) 25...Qf6?? (better is 25...Qc5 26.Be3 Raf7+-) 26.Bd5 (26.Bd5 Raf7 27.Be5+-) 1–0. Caglio,L (1960) – Mircoli,F (1815), Porto Mannu Open, Palau ITA, 2009. (=1.e4 c5 2.Nf3 e6 3.b4 Nc6 4.bc5 Bc5)

5.d4 Be7 6.Bd3 Nf6 7.Be3 a6 8.Nbd2 Ng4 9.Bf4 b5 10.c4 Nb4 11.Be2 Bb7 (11...bc4!? 12.Bc4 d5=) 12.cb5 ab5 13.Bb5 0-0 14.0-0 Nf6? (14...f5 15.ef5 Rf5 16.Be5=) 15.Re1 Qb6 16.a4 Rac8 17.Nc4 Qd8 18.a5 (18.Nd6!? Bd6 19.Bd6+/-) 18...Ne4+= 19.Nb6?? (19.a6 Bd5 20.Re3 g5+=) 19...Rc2 (better is 19...Nc3 20.Qd2 Nb5 21.Nc8 Qc8-/+ (21...Bc8?! 22.Reb1=)) 20.Bd3?? (better is 20.Bd2 Nd2 21.Nd2=) 20...Nc3 21.Bc2? Nd1-+ 22.Bd1 Nd3 23.Re2 Nf4 24.Rb2 Bf6 25.Rb4 Ba6 26.Ba4 d5 27.Bb5 Bb5 28.Rb5 Ne2 29.Kf1 Nc3 30.Rb3 Ne4 31.Ra2 Qc7 32.a6 Qc1 33.Ke2 Nc3 34.Rc3 Qc3 35.a7 g6 36.a8Q Ra8 37.Ra8 Kg7 38.Rc8 Qb2 39.Ke3 Qb6 40.h4 h5 41.Kf4 Qa6 42.Rc7 Qd6 (42...Qd6 43.Ke3 Qc7-+) 0–1. Chinchwadkar,Ojas – Chan,John (1610), San Francisco MI Carroll Capps Mem, 2005. (=1.e4 c5 2.b4 e6 3.Nf3 Nc6 4.bc5 Bc5)

3.Nf3 d5

4.Bb5 Bd7 5.Bd7 Nd7 6.ed5 Qf6 7.d4 cd4 8.Bg5 Bb4 9.Nbd2? (better is 9.Kf1!? Qf5 10.Qd4=) 9...Qf5-/+ 10.de6 Qe6 11.Qe2 Qe2 12.Ke2 f6 13.Bf4 Ne7 14.Nd4 Bc3 15.Nb5 Ba1 16.Nc7 Kf7 17.Na8 Nd5 (17...Ra8?! 18.Ra1 Nd5 19.Bg3+=) 18.Ra1 Nf4 0–1. Andreoni,Giuseppe (2000) – Collareta,Giovanni (2095), Genova op, 2006. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 cb4 5.d4 Qd5 6.Bd3+=.

4.ed5 cb4 5.d4 Nf6 6.c4 (6.Bb5!? Bd7 7.Bd7 Qd7 8.de6 Qe6 9.Qe2=) 6...bc3 7.Nc3 (7.de6 Be6 8.Qa4 Nc6+=) 7...Bb4 (7...Nd5!? 8.Nd5 Qd5-/+) 8.Qa4= Nc6 9.dc6 Bc3 10.Bd2 Ba1?? (10...Bd2 11.Nd2 0-0 12.Rb1+=) 11.cb7 (11.c7 Qd7 12.Bb5+-) 11...Bd7= 12.ba8Q Qa8 (worse is 12...Ba4 13.Qa7 Bd7 14.Bd3+-) 13.Qd1 (13.Qb4!? Nd5 14.Qc5+=) 13...Qe4+= 14.Be2 Bd4 15.0-0 Bb6 16.Ng5 (16.Bc3 0-0+=) 16...Qd5-/+ 17.Bf3 Qa2 18.Bb4 a5 (18...Nd5 19.Bd5 Qd5 20.Qd5 ed5 21.Re1 Be6 22.Ne6 fe6 23.Re6 Kf7 24.Re7 Kf6 25.Rd7-+) 19.Qd6 Bf2 (19...ab4 20.Qb6 Qc4=) 20.Rf2? (20.Kh1 ab4 21.Qb8 Ke7 22.Qh8+=) 20...Qb1-+ 21.Rf1 Qb4 22.Qb4 ab4 23.Rb1 0-0 24.Rb4 Rc8 25.Kf2 h6 26.Ne4 Ne4 27.Be4 f5 28.Bf3 Rc7 29.Rb6 Kf7 30.Ke3 Kf6 31.Kd4 g5 32.h3 g4! 33.hg4 fg4 34.Bg4 Rc6 35.Rc6 Bc6 36.g3 Bg2 37.Ke3 e5 38.Kf2 Kg5 39.Bc8 Be4 40.Ke3 Bf5 41.Bb7 e4! 42.Kf2 Kg4 43.Kg2 e3-+ 44.Bf3 Kg5 45.Kf1 ½–½. Schneider,W – Muth,W, Fs–Partie, 1988. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 cb4 5.de6 Be6 6.d4 Nc6 7.a3 Nf6 8.ab4 Bb4 9.c3 Be7 10.Bd3 0-0 11.0-0 a5 12.Na3 Nd5 13.Nb5 Na7 14.c4 (14.Na7 Ra7 15.Qc2 h6=) 14...Nb5= 15.cd5 (15.cb5!? Nb4 16.Ba3=) 15...Qd5=+ 16.Rb1? (better 16.Re1 Bf6 17.Be4-/+) 16...Nc3-+ (16...Nd4 17.Nd4 Rad8 18.Bb2+- (worse 18.Ne6 fe6 19.Bc2 Qd1 20.Rd1 Rd1 21.Bd1 Bb4+/-)) 17.Qc2 Nb1 18.Bh7 Kh8 19.Qb1?! (19.Be4 Qa2 20.Qb1 Qb1 21.Bb1 Bd5-+) 19...g6 20.Bg6 fg6 21.Qg6 Qf5 (21...Rf6!? 22.Qg5 Rf7 23.Qe5 Bf6 24.Qe3-+) 22.Qh6 Kg8 23.Re1 Rf6 24.Qh4 Rg6 25.Qe7 Qf3 26.g3 (26.Bg5 Qd5 27.h4-+) 26…Bd5 (26...Bd5 27.Kf1 Qg2 28.Ke2 Re6 29.Qe6 Be6-+) 0-1. belloid (2320) - agnivo (2355), Rated Blitz game, lichess.org, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 ed5 5.Bb5 Bd7 6.Qe2 Qe7 7.Nc3 Qe2 8.Be2 d4 (8...Nf6!? 9.bc5 Bc5=) 9.Nd5+- Bd6? (better 9...Kd8+-) 10.bc5+- Ne7 11.cd6 Nd5 12.Rb1 (12.Nd4 Nc6 13.Bb2 0-0-0+-) 12...b6 (12...Nc6 13.Rb7 Bc8 14.Rb3+-) 13.Nd4 (13.Bc4 Nf4+-) 13...Nc6 14.Bb2 Nd4 15.Bd4 0-0 16.0-0 Rfd8 (16...Rac8 17.Bf3 Bc6 18.Be5+-) 17.Bf3 Bc6 (17...Be6 18.c4 Rd6 19.cd5 Bd5 20.Bd5 Rd5 21.Bc3+-) 18.c4 Rd6 19.cd5 Bd5 20.Bd5 Rd5 21.Bc3 Rad8 (21...f6 22.Rfe1+-) 22.Rfe1 a5 (22...R5d7+-) 23.Rb6 h5 (23...f6 24.Re7 R5d7 25.Rd7 Rd7 26.Ba5+-) 24.f3 a4 (24...Ra8 25.Re7+-) 25.Ra6 Rd2 (25...Rc8 26.Ra4 Rd7 27.Ra5+-) 26.Bd2 Rd2 27.Ra4 g5 (27...Kh7 28.Ra7+-) 28.Ra7 Rd6 (28...Kg7 29.a4+-) 29.a4 h4 (29...Kg7 30.a5+-) 30.a5 f5 (30...Kg7+-) 31.Re8 1–0. Janek – Guest124, internet, 2018. (=1.e4 c5 2.b4 e6 3.Nf3 d5)

4.ed5 ed5 5.bc5 Bc5 6.d4 Bd6 7.Bd3 Ne7 8.0-0 0-0 9.Nc3 Nbc6 10.Rb1 h6 11.Re1 a6 12.h3 Qc7 13.Bd2 b5 14.a4 ba4 15.Na4 Be6 16.Qe2 a5 17.Rb5 Nb4 (17...Rfe8 18.Qe3=) 18.Nc5 Bc5 19.Rc5 Qd6 20.Ra1 (20.Bb4 ab4 21.Qe5 Qe5 22.Ne5 Rfc8=) 20...Nec6 21.c3 Nd3 22.Qd3 Rfb8 23.g3 Qd7 (worse is 23...Bh3 24.Bf4 Qf6 25.Bb8 Rb8 26.Rd5+/-) 24.h4 Bf5 25.Qf1 Be4 26.Ne1 a4 27.Bf4 Rb3 28.f3 Bh7 29.Nd3 a3 30.Qd1 Qb7?? (30...Rb6 31.Ne5 Qh3 32.Ng4-+) 31.Rc6?? (better is 31.Nb4 Rb4 32.cb4 Nb4 33.Rc7+/-) 31...Bd3-/+ 32.Rc7 Qb5 33.Rc5 Rb1 34.Rb5 Rd1 35.Rd1 Bb5 36.Bc1 (better is 36.Ra1-+) 36...a2 37.Bb2 Be2 38.Re1 (38.Ra1 Rb8 (worse is 38...Bf3 39.Kf2 Be4 40.h5-+) 39.Ra2 Bc4-+ (39...Bf3?! 40.Ba3=)) 38...Bf3 (better is 38...Rb8 39.Re2 Rb2 40.Re8 Kh7-+) 39.Kf2 Be4 40.Ba1 (40.c4 f5 41.c5 Kf7-+) 40...f5 41.Re2 Kf7 42.Ke3 g5 43.h5 Ke6 44.Rb2 Ra6 45.Rb7 Kd6 46.Rh7 0–1. Neuberg,Simon – Holl,Andreas, Oberliga SW, 1995. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 ed5 5.bc5 Bc5 6.d4 Bd6 7.Bd3 Ne7 8.0-0 0-0 9.c4 Nbc6 (9...dc4 10.Bc4 Nbc6 11.Nbd2=) 10.Nc3 (10.c5!? Bc7 11.Re1+=) 10...dc4= 11.Bc4 Bg4 12.Bd3 Ng6 (12...Nf5 13.Nb5=+) 13.Be3 Nh4 14.Be2 Nf5 15.h3 Bh5 16.Qb1 Ne3 17.fe3 Rc8 (17...Re8 18.Ne5 A) worse 18...Ne5 19.Bh5 g6 20.Be2+/- (20.de5?! Be5 21.Qb7 Re7+=); B) 18...Be2 19.Nf7 Qe7 20.Ne2 Qe3 21.Kh1 B1) 21...Qe2? 22.Nd6 Re7 23.Qb3 Qe6 24.Nf5 Qb3 25.Ne7 (worse 25.ab3 Rd7-/+) 25...Ne7 26.ab3+-; B2) 21...Be7 22.Qb7 Qe6+/-) 18.Qb7+= Na5 19.Qb2 Re8 20.e4 (20.Nd5 Bg3 21.Qb5 f5=) 20...Bf4= 21.Rad1 (better 21.Bb5 Re6 22.d5=) 21...Bg6 (21...Be3 22.Kh1 Bf3 23.Rf3 Bd4+=) 22.e5 (22.Ba6 Nc4 23.Qb4 Ne3 24.Bc8 Qc8+/-) 22...Rb8 23.Qa3 Nc6 (23...Bc2 24.Rde1+/-) 24.Nb5 (24.Bb5 Qb6 25.Qa4 Re5 26.Bc6 Ra5+-) 24...Qb6+/- 25.Kh1 Red8 (25...Bc2 26.Rde1 Rec8+/-) 26.Nd6 (26.Qa4 Ne7 27.Nh4 Nd5 28.Qa7 Bc2 29.Qb6 Nb6+-) 26...Qb4? (better 26...Bc2!?+=) 27.Qb4+- Rb4 28.Bd3 Rb2 (better 28...Bd3!? 29.Rd3 f6+/-) 29.Bg6+- hg6 30.Nf7! Kf7 31.Ng5 Kg8 32.Rf4 Ne5 (32...Ra2 33.Kh2 Re2+-) 33.Ne6 Rd6 (33...Rd5 34.Rc1 Rb8 35.Nc7+-) 34.Rf8 Kh7 35.Ng5 (35.de5?! Rd1 36.Kh2 g5+=) 35...Kh6 36.Ne4 (36.Ne4 Nf7 37.Rf7+-) 1-0. Abdrlauf,Elham (2335) - Hansen,Eric (2605), Titled Tuesday, 2021. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 ed5 5.bc5 Bc5 6.d4 Bd6 7.Bd3 Nf6 8.0-0 0-0 9.Bg5 h6 10.Bh4 Bg4 11.Nbd2 Nc6 12.c3 g5 13.Bg3 Re8 14.Qb3 Na5 15.Qc2 Rc8 16.Ne5 Nc6 17.Bh7 Kg7 (worse is 17...Nh7 18.Nf7 (worse is 18.Ng4 Nd4 19.Nh6 Kg7 20.Nf5 Nf5 21.Qf5 Rc3+=) 18...Qf6 19.Nd6 Nd4 20.Ne8 Nc2 21.Nf6 Nf6 22.Rab1+/-) 18.Nf7 Kf7 19.Qg6 Ke6 20.Rae1 Kd7 21.Qf7 Be7 22.Qf6?? (better is 22.Nb3 b6 23.f3-/+) 22…Bf6 0–1. Martin,Jean Luc – Masztalir,Matthieu, Bethune op–A, 2004. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 Qd5 5.Nc3 Qd8 6.bc5 Bc5 7.Qe2 a6 8.Ne4 Be7 9.Bb2 Nf6 10.g3 0-0 11.Bg2 Nc6 12.0-0 Rb8 13.Rfe1 b5 14.Nfg5 Bb7 15.Nf6 Bf6 16.Bf6 Qf6 (worse is 16...gf6 17.Ne6 fe6 18.Qe6 Kh8 19.Bc6 Bc6 20.Qc6 Qd2 21.Rad1+-) 17.Ne4 Qe7 18.c3 Rfd8 19.h4 Ne5 20.d4 Nc4 21.Nc5 Bg2 22.Kg2 Nb6 23.Qf3 Ra8 24.a4 b4 25.a5 Nd7 (25...Nd5 26.cb4 Nb4 27.Rec1=) 26.Nb7 (better is 26.cb4!? Nf6 27.Rab1+=) 26...Rdb8 27.c4? (better is 27.Rab1 bc3 28.Qc3=) 27...Ra7-+ 28.Nc5 Nc5 29.dc5 Qc5 30.Red1 Rc7 31.Rac1 Qc6 (31...Qa5!? 32.Rd6-+) 32.c5 h6 33.Rd6 Qf3 (better is 33...Qd6! 34.cd6 Rc1-+) 34.Kf3+= b3 (better is 34...Rb5!? 35.Ra6 Rcc5 36.Ra8 Kh7 37.Rc5 Rc5-/+) 35.Rb6+= (35.Ra6 b2 36.Rb1 Rc5-+) 35...Rbc8 36.c6 b2 37.Rb1 (better is 37.Rb2!? Rc6 38.Rc6 Rc6 39.Rb6 Rc3 40.Ke4+/-) 37...Rc6+= 38.R1b2 Rc3 39.Kg2 Ra8 40.Rb8 Rb8 (40...Rc8!? 41.Rc8 Rc8=) 41.Rb8+= Kh7 42.Rb6 Ra3 43.Ra6 Kg6 44.g4 Kf6 45.f3 Kg6 46.Kg3 h5 47.Ra7 hg4 48.Kg4 Kf6 49.Ra8 Ra4 50.f4 g6 ½–½. Aulich,Marcell (1995) – Werthebach,Felix (2160), GER–ch Net qual4 U25 blitz, 2008. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.ed5 Qf6 5.d4+= ed5 (5...cd4 6.Bg5 Qf5 7.Qd4 Qd5 8.Qd5 ed5 9.a3+=) 6.Bb5 Nc6 7.Qe2 Qe6 8.Qe6 Be6 9.bc5 Nf6 10.Nc3 Be7 11.Ne5 Rc8 12.Nc6 bc6 13.Bd3 0-0 14.0-0 Rb8 15.Bd2 White has an active position 15...Rfd8 16.Rab1 Nh5 17.Ne2 Bf6 18.h3 g5 19.c3 Re8 20.g4 Ng7 21.Kg2 h5 22.f3 Be7 23.Ng3 h4 24.Ne2 f5 25.f4 fg4 26.f5 gh3+= 27.Kh2 Rb1 28.Bb1 Rf8 29.Rg1? Bf5-+ 30.Bf5 Rf5 31.Kh3 Rf2 32.Re1 Kf7 33.Kg4 Kg6 34.Be3 Rf7 35.Ng1 Nf5 36.Bd2 Nh6 37.Kh3 g4 38.Kh2?? White falls apart 38...Rf2 39.Kh1 Nf5 40.Ne2 Re2! 41.Re2 Ng3 42.Kg2 Ne2 43.Kf2 h3 0–1. Ubeira Martinez,Enrique1 – Olaciregui,Eduardo, Reinhardt Memorial, 2000. (=1.e4 c5 2.Nf3 e6 3.b4 d5)

4.e5 a5 5.bc5 Bc5 6.d4 Be7 7.a4 Nc6 8.c3 f5 (8...Qc7 9.Bd3+=) 9.Bd3 Qb6 (9...Bd7 10.0-0+-) 10.Na3+- Ba3 (10...Qd8 11.Rb1+-) 11.Ba3 Nge7 12.Bc5 Qd8 13.Rb1 0-0 14.h4 (14.0-0 Qd7+-) 14...h6 15.h5 Qe8 16.Nh4 Qf7 17.Qf3 Re8 18.g4 fg4?? (better 18...Rb8+-) 19.Bh7!! (19.Bh7 Kh7 20.Qf7+-) 1–0. Gara,Peter – Horvath,Jozsef M (2195), Zalakaros op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a5)

4.e5 cb4 5.a4 Ne7 6.Bb5 Nbc6 7.0-0 a6 8.Be2 Nf5 9.d4 Bd7 10.c3 Rc8 11.Bb2 Na5 12.h3 (12.cb4 Bb4 13.Ba3 Qb6-/+) 12...h5 (12...Nc4 13.Qb3 Qb6 14.Bc1-/+) 13.cb4 Bb4 14.Nbd2? (better 14.Na3!?-/+) 14...g5-+ 15.Re1? (better 15.Nh2 Bd2 16.Qd2-+) 15...g4 16.Nh2 gh3 17.g3 Rg8 18.Rf1 (18.Rb1 Nc6-+) 18...Bd2 19.Qd2 Nb3 20.Qf4 (20.Qb4 Na1 21.Ra1-+) 20...Rc2 21.Bh5 Rb2 22.Ng4 Na1 23.Nf6 Kf8 (23...Ke7 24.Ng8 Qg8 25.Ra1-+) 24.Ng8 Kg8 25.Qg4 (25.Ra1 Qb6 26.Rd1 Ba4-+) 25...Kf8 26.Qh3 (26.Ra1 Qb6 27.Qh3 Qd4-+) 26...Nb3 27.Bg4 Kg7 (27...Nbd4?! 28.Qh8 Ke7 29.Qf6 Ke8 30.Qh8 Ke7 31.Qf6 Ke8 32.Qh8 Ke7=; 27...Nfd4?! 28.Qh8 Ke7 29.Qf6 Ke8 30.Qh8 Ke7 31.Qf6 Ke8 32.Qh8 Ke7=) 28.Bh5 (28.Bf5 ef5 (28...Nd4?! 29.Qh7 Kf8 30.Qh8 Ke7 31.Qh4 Ke8 32.Qh8 Ke7 33.Qf6 Ke8 34.Qh8 Ke7=) 29.Kg2 f4-+) 28...Qg5 0–1. mic – pierred, net–chess.com, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 cb4)

4.e5 cb4 5.c3 bc3 6.Nc3 Nc6 7.d4 Nge7 8.Bb5 a6 9.Ba4 (9.Bd3 Nf5=+) 9...Bd7-/+ 10.0-0 Nf5 (10...Rc8 11.Bg5-/+) 11.Bc2 Nh4 12.Be3 (12.Ng5 Bb4 13.Ne2 f6 14.ef6 gf6=) 12...Ng6 (12...Nf3 13.Qf3 Rc8 14.Bd3-/+) 13.Ng5 Be7 14.f4 (better 14.Qh5 Bg5 15.Bg5-/+) 14...h6?? (better 14...Rc8-/+) 15.Nf7+- Kf7 16.Qh5 White plans f5 16...Nb4 (better 16...Kg8 17.Bg6 Qa5 18.Bf7 Kf8+-) 17.Bg6+- (17.Qg6?! Kg8 18.Bb1 Rc8+=) 17...Kg8 18.a3 Nc6 19.f5 ef5 20.Bf7 Kf8 21.Bd5 Qe8 22.Rf5 Bf5 23.Qf5 Bf6 24.Rf1 Ne7 25.Qe6 (better 25.Qh3!? Ng8+-) 25...Nd5 26.Qd5 Qf7 (26...Rd8 27.Qf3+- (27.Qb7?! Kg8+-)) 27.ef6 gf6 (27...Qd5 28.Nd5 Kf7 29.Rb1+-) 28.Qd6 Kg7 29.Ne4 Rae8 (29...Qg6 30.Rf3 Rhd8 31.Qc7 Kh8+-) 30.Rf6 Qe7 (30...Re4 31.Bh6 Rh6 32.Rf7 Kf7 33.Qh6 Rd4 34.Qh7 Ke6 35.Qg8 Kd6 36.Qd8 Ke5 37.Qe7 Kf4 38.Qf7 Ke3 39.Qf3 Kd2 40.Qb7 a5+-) 31.Qg3 (31.Qg3 Kh7 32.Rh6) 1–0. Graham,Da (2200) – Onslow,Teddy (1630), London Classic Rapid Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 cb4)

4.e5 cb4+= 5.Bd3 Ne7 6.a3 Nec6 7.0-0 Nd7 8.Bb2 a6 9.Qe2 Nc5 10.Ne1 Bd7 11.f4 (11.Nf3 Nd3 12.Qd3 Qc7-/+) 11...ba3 12.Ba3 Nd3 13.Nd3 Nd4 14.Qd1 Qb6 15.Kh1 h5 (15...Bb5 16.Bf8 Rf8 17.Ra3-/+) 16.Bf8+= Kf8 17.Nc3 Nf5 (17...h4 18.Rb1 Qc7 19.Rb4-/+) 18.Rb1 Qa7 19.Rf3 h4 20.Rh3 Kg8 21.Qg1 (21.Ra1 Bc6-/+) 21...Nd4 (21...Qg1 22.Kg1 Bc6 23.Nc5-/+) 22.Ne1 Bc6 23.d3 (23.Qf2 Nf5 24.Qf3 d4-/+) 23...a5 24.Nd1 Nf5 25.Qa7 (25.Qf1!?-+) 25...Ra7 26.Nc3 (26.c4 a4-+) 26...d4 27.Ne4 a4 28.c4 dc3! 29.Nc3 g5! 30.fg5 Kg7 31.Kg1 Rd8 32.Nc2 Ra5 33.Nb4 Be8 34.Ne4 a3 (34...Re5 35.Kf2-+) 35.g4 (35.Ra1!?-/+) 35...hg3-+ 36.Nf6 (36.Ng3 Nd4 37.Rh6 Nf3 38.Kg2 Ne5 39.Nh5 Kf8-+) 36...Bc6 37.Rh7 Kg6 38.h4 (38.hg3 Re5 39.g4 Nd4 40.Nc6 Nc6-+) 38...a2 39.Ra1 Rd4 40.Nc6 bc6 41.Rh8 Nh4 42.Ne4 Re4! 43.de4 Rb5 44.Rh6 Kg5 45.Rf6 Rb1 46.Rf1 Rb2 47.Rf7 Kg4 48.Raf1 Rb1 (48...Rb1 49.Kh1 a1Q 50.Rg7 Kh3 51.Rg3 Kg3 52.Rb1 Qb1) 0–1. Fastberg,Juuso – Raaste,Eero, It, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 cb4+=)

4.e5 f5 5.bc5+= Bc5 6.d4 Bb4 7.c3 Be7 8.Bd3 Bd7 9.h4 (9.0-0 Nc6+=) 9...h5 (9...Nc6 10.Bg5=) 10.Ng5+= g6 11.0-0 Nc6 12.c4 (12.Na3 Nh6+-) 12...dc4 (12...Nd4!? 13.cd5 ed5=) 13.Bc4+- Qc8 14.Na3 a6 (14...Nh6 15.Rb1+-) 15.Bb2 (15.d5 Nd8+-) 15...Na5 16.Rc1 Ba3 17.Be6 Bb2 18.Rc8 Bc8 (18...Rc8 19.Bd7 Kd7 20.e6 Ke7 21.Qa4+-) 19.Qa4 Nc6 20.Bg8 Bd4 (20...Rg8 21.Qb3 Rg7 22.Qb2 Rd7+-) 21.Qc4 Bd7 (21...Be5 22.Qf7 Kd8 23.Rd1 Bd4 24.Nf3+-) 22.Nf7 1–0. Zakarian,D (2325) – Diatsintos,A (2105), 35th TCh–GRE, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f5)

4.e5 f5 5.bc5+= Bc5 6.d4 Be7 7.c3 (7.Bd3 Nc6+=) 7...Nc6 8.h3 Bd7 9.g4 Qa5 (9...Qc7 10.Rg1 g6 11.gf5 ef5 12.Qb3+=) 10.gf5+= ef5 11.Rg1 g6 12.Ng5 (12.Qb3 Nd8+=) 12...Bg5 (12...h6 13.Nf3 g5 14.Nfd2=) 13.Bg5+= Nge7 14.Bg2 Be6 15.Qd2 0-0-0 16.a4 Qa6 (16...Rd7 17.Na3+=) 17.Bf1 (17.a5 Kd7+-) 17...Qb6 (17...Qa5!?+=) 18.Na3+- a6 19.Nb5 ab5 20.ab5 Kd7 (20...Ne5 21.de5 Kd7 22.Qd4 Qd4 23.cd4+=) 21.bc6 bc6 22.Bd3 Ra8 23.Ke2 f4 (better 23...Rhb8!?+-) 24.Rgb1+- (24.Qf4?? Ra1 25.Ra1 Qb2 26.Bc2 Qa1-+ (worse 26...Qc2 27.Kf1 Nc8 28.Qf6 Qd3 29.Kg1+=)) 24...Qc7 25.Qf4 Nf5 26.Bf6 Rhb8 (26...Ra1 27.Ra1 (27.Bh8?! Rb1 28.Bb1 Qb8 29.Bf5 Qb2 30.Qd2 Qd2 31.Kd2 Bf5+-) 27...Rb8 28.Bf5 gf5 29.Qh6+-) 27.Kf1 (27.Bf5!? gf5 28.Ra8 Ra8+-) 27...Ra1+- 28.Ra1 Ke8 29.Kg1 Qb7 30.Rb1 Qb1 (better 30...Qc7!?+-) 31.Bb1 Rb1 32.Kh2 Rb2 33.Bh4 Rc2 (33...h6 34.Qc1 Re2 35.Qd1+-) 34.Qg5 Rc3?? (34...Nh4 35.Qf6 Nf3 36.Qf3 Bf5+-) 35.Qf6 (better 35.Qd8 Kf7 36.Qf6 Kg8 37.Qe6 Kg7 38.Qf6 Kh6 39.Bg5 Kh5+-) 35...Rc2 1–0. Kabanov,N (2470) – Akbaev,K (2475), FIDE World Blitz, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f5)

4.e5 Nh6 5.bc5+- Bc5 6.d4 Bf8 7.Bd3 (7.Bh6 gh6 8.Nbd2 Rg8+-) 7...Nf5+= 8.0-0 Nc6 9.c3 Be7 10.Na3 (10.Ba3 0-0+=) 10...h5 (10...a6 11.Nc2+=) 11.Nc2+= g5 12.Ba3 g4 13.Be7 Qe7 14.Nfe1 Qg5 15.f4 Qg6 16.Qb1 0-0 17.Ne3! Rd8 (17...Ne3 18.Bg6 Pinning (18.Bg6 Deflection)) 18.N1c2 Rb8 (18...g3 19.hg3 Qg3 20.Rf3+-) 19.Nf5 (19.Qb5 a6 20.Qb6 Rd7+-) 19...ef5 20.Ne3 Ne7 21.Qb4 Nc6 22.Qb1 Ne7 23.Qb4 Kf8?? (23...Nc6 24.Qb3 Be6+-) 24.Qa5+- Nc6 25.Qc5 Kg7 26.Nd5 b6 27.Qc4 (27.Qb5 a6 28.Qc4 Be6 29.Qc6 Bd5 30.Qg6 Kg6 31.Ba6 Ra8+-) 27...Be6+- 28.Qc6 Rd5 29.Ba6 Rbd8 30.Bc4 Ra5 31.Be6 Qe6 32.Qe6 (32.Qb7 Ra3+-) 32...fe6+= 33.a4 Rc8 34.Ra3 b5 35.Rfa1 b4 36.cb4 Rd5 37.Rd3 Rc4 38.Rb1 Rdd4 39.Rd4 Rd4 40.g3 h4 41.a5 a6 42.Rb2 h3 43.Kf2 Rd3 (43...Re4 44.Kf1+-) 44.Ke2+- Ra3 45.Kd2 Kf8 46.Kc2 Re3 (better 46...Ke7!? 47.Kb1 Rd3+-) 47.Ra2+- Re4 (47...Re2 48.Kb3 Re3 49.Kc4+-) 48.b5! Rc4 (48...ab5 49.a6 Passed pawn) 49.Kb3 ab5 (49...Rc7 50.Rc2 Rb7 51.Rc8 Ke7 52.b6+-) 50.a6 1–0. Schmitz,Andreas – Hohelj,Stanislav (2285), Porz op28, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nh6)

4.e5 Nh6 5.bc5 d4 6.Bb5 Nc6 7.c3 (7.Ba3 Bd7+=) 7...Bc5= 8.Qa4 (8.Ba3 Bb6+=) 8...Bd7 9.Qc4 Qb6 10.Ba3 Ba3 11.Na3 0-0 12.Nd4 (12.Rb1 dc3 13.Qc3 Qc7=) 12...Nd4 (12...Ne5!? 13.Qe2 Bb5 14.Nab5 Ng6=) 13.Bd7 Rfd8 14.Qa4 (14.Qd4 Qd4 15.cd4 Rd7=) 14...Qb2 15.0-0 (15.Rb1 Qa3 16.Qd4 Rab8-/+) 15...Ne2-/+ 16.Kh1 Qd2 17.Rad1 Nc3 (better 17...Qg5 18.Qc2 Nf4-/+) 18.Qb4? (better 18.Rd2 Na4 19.Rc1=+) 18...Qd1 19.Rd1 Nd1 20.Qb7 Nf2 21.Kg1 Nd3 22.Qc7 Ne5! 23.Qe5 Rd7 24.h3 Rd2 25.Nb5 Kh8 (25...Nf5!? 26.a4 Rad8 27.Kh1-+) 26.a4 Nf5 (26...Rd7 27.Qc5-+) 27.Qc7 (27.Na7 Ra2 28.a5 Nh4-+) 27...a6 28.Qb7 Rdd8 29.Nc7 Rab8 30.Qa6 h6 (better 30...Rb1 31.Kh2 h6 32.Ne6 fe6 33.Qe6 Rf1-+) 31.a5?? (31.Nb5 Rbc8 32.Kh2 Rc1-+) 31...Ne3 (better 31...Rb1 32.Kh2 Rdd1 33.Qa8 Kh7-+) 32.Qe2 Nd5 (better 32...Rb1 33.Kf2 Rb2 34.Ke3 Re2 35.Ke2 Rd7-+) 33.Nd5 Rd5 (worse 33...ed5 34.a6-+) 34.Qa6 Rb1 35.Kh2 Ra1 36.Qb7 Raa5 37.Qf7 Re5 38.h4 Kh7 39.Qf3 Kg8 40.Qd3 Rad5 41.Qc2 Rc5 42.Qd3 Rf5 43.Qd8 Kh7 44.Qd3 Rcd5 45.Qc2 h5 46.Kh3 Rc5 (46...Rd4 47.Qc8 Re4 48.Qc2-+) 47.Qd3 Rce5 48.Kh2 Rd5 49.Qc2 Rd7 50.Qc6 (50.Qe4 Re7-+) 50...Re7 (50...Rd4 51.Kh3 e5 52.Qe6-+) 51.Qd6 Rff7 52.Qe5 g6 53.Kh3 Kg8 54.Qb8 Kg7 55.Qe5 Rf6 56.Kh2 Kf7 57.Kh3 Rd7 58.Kh2 Ke7 (58...Rf2 59.Kg3 Rf5 60.Qh8 Rd3 61.Kh2-+) 59.Qc5 Kf7 60.Qe5 ½–½. Husarik,B (2095) – Bernard,B (2310), 28th Czech Open E, 2018. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 Nh6)

4.e5 a6

5.a3 Nc6 6.c3 Bd7 (6...d4 7.b5 ab5 8.Bb5=) 7.d4+= cd4 8.cd4 Nge7 9.Bd3 Nf5 10.Be3 (10.Bf5 ef5 11.0-0 Be7+=) 10...Be7 (10...Ne3 11.fe3 f6 12.ef6 Qf6 13.Nc3=) 11.0-0 Qb6 d4 becomes the focus of attention (11...Ne3 12.fe3 Rc8 13.Nbd2=) 12.Nc3+= 0-0? (better 12...Ne3 13.fe3 f5+=) 13.Bf5+- ef5 14.Nd5 Qd8 15.Ne7 Qe7 16.Bg5 f6 17.ef6 gf6 18.Bh6 Rfe8 19.Re1 Qf7 20.Qd2 Ne7 21.d5 (21.a4!? Bc6 22.Ra3 Nd5+-) 21...Nd5+- White creates threats along the open d–file 22.Red1 Bc6 23.Nd4 Ne7 24.Qf4 Qg6 Do you see the mate threat? 25.Nc6 Nc6 26.Rd7 Re7 27.Rd3 (27.Re7 Ne7 28.Re1 Nc6+-) 27...Re4 (27...Rae8 28.Kf1 Qh5 29.Rg3 Kh8 30.f3=) 28.Qd2+- Rae8 29.h3 (better 29.Rg3!? Rg4 30.Rd1+-) 29...Re2= 30.Qf4 R2e4 (30...R8e4 31.Rg3 Rf4 32.Bf4=) 31.Rg3 Rf4 32.Bf4 Kf7 33.Rg6 hg6 34.Rd1 Re7 (34...Ne5 35.Kf1=) 35.Kf1 (35.Be3 Ne5=) 35...Ne5 36.Rd4 (36.a4 g5 37.Be3 f4=) 36...Nc6 (36...g5 37.Bd2=) 37.Rc4 (37.Rd6 Ne5=) 37...Rd7 (37...Re4 38.Re4 fe4 39.h4=) 38.Ke2 Ne5 39.Rc5? (better 39.Rc3=) 39...Nd3-+ 40.Rc4? (better 40.Be3 Nc5 41.bc5-+) 40...Nf4 (better 40...b5 41.Rc5 Nf4 42.Kf3 Nd3-+) 41.Rf4= Rc7 (41...b5 42.Rf3=) 42.Kd3 (42.Rd4 Ke6=) 42...Ke6 (42...b5 43.Rd4=) 43.Rd4 (43.Rc4 Rd7 44.Ke3 Re7=) 43...Ke5 (43...Rc1 44.Kd2 Ra1 45.Rd3=) 44.Rd8 (44.f4 Ke6+=) 44...f4= 45.Re8 Kf5 46.a4 Rd7 47.Kc3 Rc7 48.Kb3 Rd7 49.Re2 Rd3 50.Kc4 Rd7 51.b5 Rc7 52.Kb4 g5 53.b6 Rd7 54.Rc2 (54.Kc5 f3 55.g4 Kf4+=) 54...Rd4= 55.Kb3 Rd6 56.a5 Rd5 57.Kb4 Rd4 58.Kc5 Ra4? (better 58...Rd7+=) 59.Kd6+- Ra5 60.Kc7 Rb5 (60...f3 61.gf3 Rd5 62.Kb7 Rd3+-) 61.Kb7 a5 (61...f3 62.g4 Ke5+-) 62.Ka6 Rb3 63.b7 Ke6 (63...f3 64.Rc5 Ke6 65.g3 Rb7 66.Kb7+-) 64.Ka7 (better 64.Rc6 Kf7 65.Rb6 Rb6 66.Kb6+-) 64...Kd5 65.b8Q Rb8 66.Kb8 Kd4 67.Ra2 0–1. Rodshtein,Tereza (2235) – Zpevakova,J (2085), ch–CZE Blitz Women, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

5.bc5 Bc5

6.d4 Ba7 7.Bd3 Nc6 8.c3 Bd7 9.0-0 h6 (9...Nge7 10.Qb3+=) 10.a4 (10.Bf4 Nge7+=) 10...Nge7 11.g3 (11.Nbd2 0-0+=) 11...0-0= 12.Nh4 (12.Nbd2 Rc8=) 12...f5 (12...f6 13.ef6 Rf6 14.Nf3=) 13.ef6 (13.Nd2 Qa5 14.Qb3 b5=) 13...Rf6 14.Nd2 (better 14.Nf3!?=) 14...e5-/+ 15.Bb1 (15.de5!? Ne5 16.Ndf3-/+) 15...ed4 (better 15...Bh3 16.Ng2 ed4-+) 16.Ndf3 (better 16.c4-+) 16...dc3 17.Qd3 Bf5 (17...Qa5 18.Qh7 Kf7 19.Re1-+) 18.Nf5 (18.Qc3 Rc8 19.Nf5 Nf5-/+ (19...Rf5?! 20.Bf5 Nf5 21.Qd3+=)) 18...Nf5 (18...Rf5?! 19.Qc3 Rf7 20.Qd3-/+) 19.g4 (19.Ra3 Nfd4 20.Nd4 Bd4-/+) 19...Nfd4 20.Qh7 (20.Nd4 Nd4 (20...Bd4 21.g5 c2 22.gf6 Ba1 23.Bc2 Bf6 24.Ba3=+) 21.Qh7 Kf7-+) 20...Kf7 21.Ng5?? (21.Nd4 Nd4 22.g5-+) 21...hg5 22.Qh5 Ke6 23.Re1 (23.Bg5 c2 24.Ba2 Nf3 25.Kh1 Qh8 26.Bf6 Qh5 (worse 26...Kf6 27.Qf5 Ke7 28.Qf3+-) 27.gh5 gf6-+) 23...Kd7 (23...Kd6 24.Ba3 Kc7 25.Kh1-+) 24.Bg5 Nf3 25.Kh1 Ne1 26.Bf5 (26.Bf6 Qf6 27.Bf5 Kd6 28.Re1 g6 29.Qg6 Qg6 30.Bg6 Bf2-+) 26...Kc7 (better 26...Rf5 27.gf5 Qe8 28.Qg4-+) 27.Bf4 (27.Bf6 Qf6 28.Re1 Bf2-+) 27...Kb6 28.a5 (28.Re1 g6! 29.Qh4 Rf5 30.Qd8 Rd8 31.gf5 gf5 32.Rb1 Ka5 33.Bc7 Ka4 34.Bd8 Nd8-+) 28...Na5 29.Qh3 (29.Be3 d4 30.Be4 Nc6-+) 29...d4 30.Rb1 Kc5 31.Re1 Rf5! 32.gf5 Qd5 33.Kg1 Nc6 34.Qg3 (34.Qg4 Bb8 35.Re8 d3-+) 34...Bb8 (34...Qf5 35.Bc7-+) 35.Bc7 (35.Bb8 Rb8 36.Rd1 Rf8-+) 35...Kc4 (35...Bc7 36.Qc7 d3 37.Rb1-+) 36.Rb1 (36.Qf4 Bc7 37.Qc7 d3-+) 36...b5 (better 36...Ne5 37.Be5 Qe5 38.Qf3-+) 37.h3 (37.Bb8 Qf5 38.Ra1 Rb8 39.Ra6 Ne5-+) 37...b4 (37...Bc7 38.Qc7 Rh8 39.Qg3 Qf5 40.Rc1-+) 38.Rd1 (38.Bb8 Rb8 39.Ra1 b3-+) 38...Bc7 39.Qc7 c2 40.Ra1 Kb3 (40...d3 41.Qf4 Nd4 42.Rc1-+) 41.Re1 (41.Qf4 d3 42.Qe3 Nd4-+) 41...Rd8 42.Qg3 (42.Qf4-+) 42...d3 43.Rf1 Kb2 44.Qf4 d2 45.f6 gf6 46.Qf6 Nd4 47.f4 (47.Kh2 c1Q 48.f4 Qf1 49.Qd4 Qd4 50.Kg3 Qdf4) 47...Rg8 48.Kf2 (48.Qg5 d1R 49.Kh2 Rd2 50.Rf2 Rf2 51.Kg3 Qg2 52.Kh4 Rh8 53.Qh5 Rf4) 48...Rg2 (48...Rg2 49.Ke3 Re2 50.Kd3 d1Q 51.Rd1 cd1Q; 48...Qf3) 0–1. Chernov,Igor (2300) – Mylnikov,Mikhail, RUS–ch Silent, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

6.d4 Ba7 7.Bd3 Nc6 8.c3 Nge7 9.0-0 b5 10.Ba3 (10.Nbd2 Ng6+=) 10...h6 (10...0-0 11.Nbd2+=) 11.Nbd2 (11.Bd6 Bd7+=) 11...Qa5 Black prepares the advance b4 (11...Bd7 12.Nb3+=) 12.Qc1 (12.Qb3 f6+-) 12...Rb8 Black prepares the advance b4 (12...Nf5 13.Nb3 Qc7 14.Qd2+=) 13.Bd6+- Rb7 (13...Ra8 14.a4! ba4 15.Qc2+-) 14.a4! b4 (14...ba4 15.Qc2 Decoy) 15.Nb3+- Qd8 16.Ba6 bc3 (16...Rb6 17.Bb5+-) 17.Bb7 Bb7 18.Bc5 (18.Qc3 Ba6 19.Rfc1 Bc4+-) 18...Qa8 (18...Ba6 19.Re1+- (19.Qc3?! Bf1 20.Rf1 Qa8+-)) 19.Qc3 0-0 20.Ba7 (20.Rfc1 Ba6+-) 20...Qa7 21.Nc5 (21.Rfc1 Ba6+-) 21...Ba6 22.Rfc1 Bc4 (22...Be2 23.Nd2+-) 23.Rab1 (23.Rcb1 Nf5+-) 23...Nf5 (23...Nd4 24.Nd4 Qc5 25.Rb7+-) 24.Rb7 Qa8 25.g4 (25.Rcb1 Rb8+-) 25...Nfe7 26.Rb2 (26.Nd2 Ng6 27.Qe3 Na5+-) 26...Ng6 (26...Rc8 27.Nd7 Rd8 28.Nb6+-) 27.Nd7 (27.Qe3 Rb8 28.Rb8 Qb8+-) 27...Qa4 (27...Rd8 28.Nb6 Qa7 29.Qe3+- (worse 29.Nc4 dc4 30.Rd2 Na5+-)) 28.Nf8 Kf8 (28...Nf8 29.Rb7 Qa6 30.Rcb1+-) 29.Nd2 Nh4 30.Rb6 Kg8 (30...Nd8 31.Ra1 Qe8 32.Ra8+-) 31.Ra1 Nd4 32.Qd4 Qc2 33.Rb8 (33.Rb2 Qd2 34.Rd2 Nf3 35.Kg2 Nd4 36.Rd4 g5+-) 33...Kh7 34.Rb2 Qg6 35.Qf4 Be2 (35...Qd3 36.Kh1 (36.Qf7?? Qh3 37.Qf3 Nf3 38.Nf3 Qg4 39.Kh1 Qf3 40.Kg1 d4-+; 36.Nc4 dc4 37.Qg3 Qg3 38.hg3 Nf3 39.Kg2 Ne5+-) 36...Qc3 37.Rbb1+-) 36.h3 Qd3 37.Qe3 (37.Rb3 Qc2+-) 37...Ng6 (37...Qe3 38.fe3 Ng6 39.Re1+-) 38.Qd3 (38.Ra3 Qe3 39.Re3 Ba6+-) 38...Bd3 39.Ra3 (39.Rb3!? Nf4+-) 39...Ne5 40.f4 Nc4 41.Nc4 Bc4 (41...dc4 42.Rb7 g5 43.fg5 hg5 44.Rf7 Kg6 45.Rf2+-) 42.Ra7 Kg6 (42...g5 43.fg5 Kg6 44.gh6 Kh6 45.Rf7+-) 43.Rbb7 1–0. Vincze,Robert (2225) – Hever,Janos (1970), Open, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

6.d4 Bb4 7.c3 Be7 8.Bd3 Nc6 9.0-0 Na5 10.Re1 (10.Nfd2 Nc6+=) 10...Bd7 11.Nbd2 (11.Nfd2 Rc8+=) 11...Rc8= 12.Bb2 Nh6 13.Rc1 (13.a3 Nf5=) 13...b5 14.Qc2 g6 (14...Nc4 15.Rb1= (15.Bh7? Nb2 16.Qb2 Rh7-+)) 15.Nb3 (15.Nb1 Nf5=) 15...Nc4= 16.Nbd2 Nf5 (16...Qa5 17.Nc4 bc4 18.Be2=) 17.a4 (17.Nc4 bc4 18.Bf5 gf5+=) 17...Bc6 (17...Nd2 18.Qd2 ba4 19.Ra1=) 18.ab5+= ab5 (18...Nd2 19.Qd2 Bb5 20.Ra1+=) 19.Ra1 Qb6 (19...0-0 20.Reb1+=) 20.Bc4 (20.Reb1 Nb2 21.Qb2 0-0+-) 20...dc4 21.Ba3 0-0 22.Be7 (22.Qb2 Bf3 23.Nf3 Ra8+=) 22...Ne7+= 23.Ng5 Bd5 (23...Ra8 24.Qb2 Nd5 25.Nge4+=) 24.Nde4 h6 (24...Be4 25.Ne4 (worse 25.Qe4 h6 26.Nf3 Nd5=; worse 25.Re4 Nd5=) 25...Nd5 26.Nd6+-) 25.Nf6 Kg7 26.Nge4 Qc6 (26...Ra8 27.Nc5 Qc6 28.f3+-) 27.Ra7 (27.f3 Ra8+-) 27...Rc7 (27...Nf5 28.Rea1+=) 28.Rea1 (better 28.Rc7 Qc7 29.Rb1+-) 28...Rfc8? (better 28...Ra7 29.Ra7 Ra8 30.Ra8 Qa8=) 29.R7a6+- Be4 30.Rc6 (30.Qe4?! Qe4 31.Ne4 Nd5+=; worse 30.Ne4 Qd7+-) 30...Bc6 31.f3 (31.Qb2 Rd8+-) 31...Nf5 (31...Rb7 32.Qe2+-) 32.Qd2 Nh4 (32...Rd8 33.Qb2+-) 33.Qf4 (33.Qb2 Rd8+-) 33...g5 (33...Nf5 34.Qc1+-) 34.Nh5 Kg6?? (34...Kh7 35.Qc1 Rd8+-) 35.Qf6 Kh5 36.g4 1–0. Uribe,Julian – Gomez,Dario G (2135), JAHV McGREGOR de Ajedrez ITT, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Bb4 7.c3 Be7 8.Bd3 Nc6 9.0-0 b5 10.a3 (10.Nbd2 Nh6+=) 10...Rb8 11.Nfd2 (11.Qc2 h6+=) 11...a5 Black prepares b4 (11...Nh6 12.a4=) 12.f4 (12.Qg4 Bf8+=) 12...g6 (12...Nh6 13.Qe2 Qb6 14.Ra2=) 13.a4 (13.Ra2 Qb6 14.Nf3 Nh6+=) 13...b4 14.Nf3 (14.Nb3 Qb6+=) 14...Nh6 (14...Qb6 15.Rf2=) 15.c4 (15.cb4!? Nb4 16.Nc3+=) 15...Nf5 (15...dc4 16.Bc4 Nf5 17.Bb5=+) 16.cd5 (16.Bf5 gf5 17.c5 Ba6=) 16...ed5 (16...Qd5 17.Bf5 gf5 18.Be3-/+) 17.Bb5=+ Bd7 (17...Qb6 18.g4 Ng7 19.Qc2=+) 18.Re1 (18.Rf2 0-0=) 18...Qb6=+ Will d4 fall? 19.Bb2 (19.Be3 0-0 20.Bf2 Rb7=) 19...0-0 20.Kh1 (20.Qd2 Kg7=+) 20...Rfd8 (20...Be6 21.Bc6 Qc6 22.Nbd2=+) 21.Qd3 (21.Qd2 Na7 22.Be2 Rdc8=) 21...b3 (21...Bc8 22.Qd2=+) 22.Na3 (22.Nbd2 Nb4 23.Qb3 Bb5 24.ab5 Qb5=+) 22...Na7 23.Qb3 Nb5 (23...Bb5 24.ab5 Nb5 25.Nc2=) 24.Nb5+= Bb5 25.Qb5 (25.Bc3 Qa6 26.ab5 Rb5=) 25...Qb5= 26.ab5 Rb5 27.Bc3 (27.Ba3 Bb4 28.Rec1 a4=+) 27...Bb4=+ 28.Bb4 Rb4 29.Ra5 Nd4 30.Nd4 Rd4 31.Ra6 (31.g3 Rd2=+) 31...Rf4 32.Rd6 Re8 33.Rd5 ½–½. Soto,Miguel Angel (1650) – Ruiz Agudelo,Santiago (1800), Zonal Sub12 Absoluto Zona Especial Anti, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

6.d4 Bb4 7.c3 Be7 8.Bd3 Bd7 9.0-0 Nc6 10.Be3 b5 (10...Rc8 11.Qe2+=) 11.Nbd2 Rc8 12.a4 b4 (12...Na5 13.Qc2+=) 13.c4 (13.Ba6 Ra8 14.Bb7 Ra7 15.Bc6 Bc6 16.cb4 Bb4+-) 13...a5 (13...dc4 14.Nc4 Na5 15.Nb2+-) 14.cd5 ed5 15.Rc1 f6 16.Qb3 Be6 17.Ba6 Rc7 18.Bb5 Qc8 19.Rc2 Bd8 20.ef6 gf6 (20...Bf6 21.Bf4 Nge7 22.Bc7 Qc7 23.Bc6 Nc6 24.Rfc1+-) 21.Bf4 Nge7 22.Bc7 Qc7 23.Bc6 (23.Bc6 Nc6 24.Rfc1+-) 1–0. pierred – mic, net–chess.com, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Bb4 7.c3 Bf8 8.Bd3 Nc6 9.Ng5 (9.Nbd2 Nge7+=) 9...g6 (9...Be7 10.Qg4 h5 11.Qg3+=) 10.h4 (10.0-0 Bd7+=) 10...h5 (10...b5 11.h5 Nh6 12.Nf3+-) 11.Qc2 (11.0-0 Nge7+=) 11...Nge7 12.Ba3 (12.Nf3 Bd7+=) 12...Nf5 (12...Bh6 13.Nd2=) 13.Bf8+= Kf8 14.Nd2 (14.Bf5 ef5 15.0-0 Kg7+=) 14...Nh4= 15.Rh4 Qg5 16.g3 (16.Nf3 Qd8+=) 16...Kg7 (16...Ke8 17.Qd1=) 17.a4 (17.Rb1 Qd8=) 17...Bd7 (17...Qd8 18.Rb1=) 18.Nb3 (18.Qb2 Rhb8=) 18...Rac8 (18...Rhc8 19.Qe2=) 19.Qb2 (19.Qe2 Rc7=) 19...Rc7 20.Kf1 (20.Qe2 Rhc8=) 20...Rhc8 (20...f6 21.ef6 Qf6 22.Nc5-/+) 21.Kg2= Ne5 (21...Ne7 22.f4 Qh6 23.Nc5=) 22.de5 Qe5 23.Nd4 Rc3 (better 23...Qf6 24.Rf4 Qe7=) 24.Qb7?? (better 24.Ne2+-) 24...Rd3-+ 25.Qd7 Rc4?? (better 25...Rd4 26.Rd4 Qd4 27.Qc8 Qa1 28.Qa6 g5-+) 26.Rf4+- Rdd4 27.Rf7 Kh6 28.Rh7 (28.Qe8 h4 29.Qf8 Kh5 30.Rh7 Kg5 31.f4 Rf4 32.gf4 Rf4 33.Qe7 Qf6 34.Qf6 Kf6=) 28...Kg5 29.Qe7 (29.f4 Rf4 30.gf4 Kf4 31.Qf7 Kg5 32.Qe7 Kg4 33.Rg1=) 29...Qf6= 30.f4 Rf4 31.gf4 Rf4 32.Qf6 Rf6 33.Rf1 (33.Re1!?+=) 33...Rf1= 34.Kf1 h4 (better 34...e5!?+=) 35.Ra7 d4 (better 35...e5+-) 36.Ra6 e5 37.Rd6 Kf5 (37...h3 38.a5 h2+-) 38.a5 h3 39.a6 g5 (39...h2 40.Kg2 e4 41.a7+-) 40.a7 (40.a7 g4 41.a8Q h2 42.Qc8 Kf4 43.Qc1 Kf5 44.Kf2 g3 45.Kf3 h1Q 46.Qh1 e4 47.Kg3 Ke5 48.Qh6 Kf5 49.Qf6) 1–0. Mironov,Alexander – Turetsky,Mark (1635), 5th Korchnoy Memorial, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Bb6 7.Ba3 Nc6= 8.c3 (8.Be2 Nge7=) 8...h5 (8...f6!?=) 9.Bd3+= Bc7 10.Bc1 (10.0-0 Nh6+=) 10...b5 (10...f6 11.Bg6 Kd7 12.Qe2+=) 11.Bg5 (11.0-0 Nge7+=) 11...Qd7 (11...f6 12.Bg6 Kd7 13.Bf4+=) 12.a3 (12.Bh4 f6+=) 12...Rb8 (12...f6 13.Bg6 Kd8 14.Bh4=) 13.Nh4+= Nge7 14.Qf3 (14.Nd2 Ba5 15.Rc1 Bb7+=) 14...Nf5 (14...a5 15.Qe2+=) 15.Nf5+- ef5 16.Bf5?? (better 16.0-0+-) 16...Qf5-+ 17.Qd5 (17.Qe3 Be6-+) 17...Bd7 (better 17...Bb7 18.Qa2 Qg5-+) 18.Be3 f6 19.0-0 fe5 20.Re1 Kd8 (20...e4 21.Qf5 Bf5 22.Nd2-+) 21.de5 Be5 (21...Ne5 22.Qd4-+) 22.Rd1 (22.Qd2 Re8-+) 22...Kc7 (22...Ke8 23.f4 Bf6 24.Qf3-+) 23.f4 Bf6 24.Qd6 (24.Qd2 Rhd8-+) 24...Kc8 25.Nd2 (25.Qd2 Rd8-+) 25...Re8 (25...Rd8 26.Nf1-+) 26.Nf1 Rb7 (26...Rd8 27.Ng3 Qe6 28.Qe6 Be6 29.Nh5 Rd1 30.Rd1-+) 27.Rac1 (27.Ng3 Qe6 28.Qe6 Re6-+) 27...Be7 28.Qd2 Ba3 (28...Na5 29.Qf2-+) 29.Rb1 (29.Ra1 Qf8-+) 29...h4 (29...Na5 30.Ng3 Qg6 31.Qf2-+) 30.Rb3 (30.Ra1 Qf8-+) 30...Bc5 31.c4 (31.Qf2 Na5 32.Rbb1 Re3 33.Ne3 Qe4-+) 31...Be6 32.Rbb1 Bc4 0–1. Kramer,Ralf (1630) – Ziegel,Mandy Marie, 11th Lichtenberger Sommer, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Bb6 7.c3 Nc6 8.Bd3 Bd7 9.0-0 f6 (9...Nge7 10.Ba3+=) 10.Re1 Qc7 11.a4 (11.ef6 Nf6 12.Qb3 0-0+-) 11...Nge7+= 12.Bd2 (12.ef6 gf6 13.g3 Ng6+=) 12...0-0 13.ef6 Rf6 14.Bg5 Rf7 15.Bh4 Nf5 16.Bg3 Ng3 17.hg3 g6 18.Ra2 Re8 19.Ne5 (19.Qb3!?=) 19...Ne5-/+ 20.Re5 Ref8 21.Qc1?? (better 21.Qb3=+) 21...Bd4!-+ 22.Re3 (22.cd4 Qc1 Double attack (22...Qc1 Pinning; 22...Qc1 Deflection)) 22...Be3 23.Qe3 e5 24.Bc2 (24.Bf1 Rc8-+) 24...Bf5 (better 24...Rf2 25.Nd2 Bg4 26.Bd3 Qc3 27.Rc2-+) 25.Bf5 Rf5 (worse 25...gf5 26.Rd2 f4 27.gf4 Rf4 28.Rd5 Rf2 29.Nd2-+) 26.Qd3 (26.Re2 Rc8-+) 26...Qc5 27.Qf1 Qc4 (27...Rg5 28.Qd3-+) 28.Re2 (28.Qc4 dc4 29.Na3-+) 28...Qa4 29.Rd2 (29.Nd2 Qc6 30.Qa1 e4-+) 29...Qc4 (29...a5 30.Qc1-+) 30.Qd1 (30.Qc4 dc4 31.Na3 b5-+) 30...e4 31.Re2 (31.Rb2 b5-+) 31...Qc5 32.Qe1 (32.Qc2 R8f6-+) 32...b5 33.Ra2 (33.Qd2 a5-+) 33...a5! Black prepares the advance b4 34.Na3 (34.Ra5 Qb6 Double attack (34...Qf2 Deflection; 34...Qb6 Decoy)) 34...b4 35.cb4 ab4 36.Rc2 Qd4 (better 36...Qb6 37.Nb1-+) 37.Nb5 (37.Rd2 Qf6 38.Nb1-+) 37...Qd3 38.Qe2 Qe2 (better 38...Rb8 39.g4 Rf7 40.Nd6-+) 39.Re2 e3! 40.fe3 (40.Re3 Rf2 Deflection; 40.fe3 Rf1 Combination) 40...Rf1 41.Kh2 R8f5 42.g4 Rg5 (better 42...R5f2 43.Rf2 Rf2-+) 43.Nd4 (43.Rb2 Rg4 44.Nd4 h5-+) 43...Rg4 44.Nf3 (44.Rb2 h5-+) 44...b3 45.Rb2 Rf3! 46.gf3 Rb4 47.Kg3 Kf7 48.f4 (48.Kf2-+) 48...Ke6 49.Kf3 Kf5 50.Kf2 (50.Ke2 Ke4-+) 50...Ke4 51.Ke2 h5 52.Kd2 h4 53.Kc3 (53.Kc1-+) 53...Rb8 54.Kd2 h3 55.Kc1 Ke3 56.Rh2 Rh8 57.Kb2 Kf4 58.Kb3 Kg3 59.Rh1 h2 60.Kc3 Rf8 61.Kb4 Kg2 (61...Kg2 62.Rd1 g5-+) 0–1. Headlong,Benjamin – Mccormick,Graeme S, British Chess Championships, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Bb6 7.c3 Nc6 8.Bd3 Nge7 9.Be3 (9.0-0 Bd7+=) 9...Bc7 (9...Nf5 10.0-0+=) 10.Nbd2 Bd7 (10...Nf5 11.0-0+=) 11.Ng5 (11.0-0 f6 12.ef6 gf6+=) 11...h6 12.Qh5 (12.Ngf3 0-0=) 12...g6= 13.Qh3 b5 (13...Nf5 14.Bf4=) 14.Ngf3+= Nf5 (14...Rc8+=) 15.g4 (better 15.Bg5! Qc8 16.Bf6+-) 15...Ne3= 16.fe3 f5 (16...Ba5 17.Rc1=) 17.gf5 (17.ef6 Qf6 18.Rf1 Qg7=) 17...ef5 18.Rg1 (18.a4 ba4 19.0-0 Ba5=+) 18...Ne7=+ 19.Qh4 (19.a4 Ba5 20.ab5 ab5=+) 19...Ba5 20.Rc1 Qb6 (20...Qc8 21.Qf6 Rg8 22.Qh4=+) 21.Nb3= 0-0-0?? (better 21...Ra7=) 22.Qe7+- (22.Na5?! g5 23.Rg5 hg5 24.Qg5 Rh3+=) 22...g5 (22...Kb8 23.Na5 Qa5 24.Qd6 Ka7 25.Rg6+-) 23.Qa3 Be6 (23...Rhe8 24.Qa5 Qa5 25.Na5+-) 24.Qa5 Qa5 25.Na5 Rd7 (25...Kc7 26.Nb3+-) 26.Nb3 Rc7 27.Nc5 Rc6 (27...Rc5 28.dc5 Re8 29.Nd4+-) 28.Ne6 Re6 29.Bf5 (29.Bf5 Kd7 30.h4+-) 1–0. Picken,Oliver – Calitz,Hananke, New Zealand Rapid, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Be7 7.Bd3 Nc6 8.0-0 b5 9.a3 Qb6 10.c3 Bd7 11.Be3 Na5 12.Ng5 Bg5 13.Bg5 Ne7 14.Be7 Ke7 15.Qg4 Rag8 ½–½. Frank,Wolfgang (2155) – Fichte,Wolfgang (2025), 10th Open, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

6.d4 Be7 7.Bd3 Nc6 8.0-0 Qc7 9.c3 Bd7 10.Re1 Na5 11.Bg5 Nc4 12.Nbd2 (12.Be7 Ne7 13.Qb3 b5=) 12...Nb2= 13.Qc2 Nd3 14.Qd3 Bb5 (14...Rc8 15.Be7 Ne7 16.Rac1=) 15.Qe3 (15.Qc2 Rc8 16.a4 Bc6=) 15...Rc8 16.a4 Bc4 (16...Bd7 17.Rec1=) 17.Reb1+= b5 (17...h6 18.Be7 Ne7 19.Nc4 dc4+-) 18.a5 (better 18.Nc4!? bc4 19.a5+=) 18...Bf8 19.h4 (19.Nc4!? Qc4 20.Rc1=) 19...h6-/+ 20.Bf4 Ne7 21.g4 (21.Nc4 Qc4 (21...bc4?! 22.Qe2=) 22.Rc1 Nf5=+) 21...h5 22.gh5 (better 22.Nc4!? Qc4 23.g5-/+) 22...Nf5-+ 23.Qe1 Bd3 24.Rc1 Rh5 25.Bg5 Be7 26.Nb3 Nh4 27.Nh4?? (27.Bh4 Be4 28.Qe2 Bf3 29.Qf3 Rh4 30.Kg2-+) 27...Rg5 (27...Rh4 28.Bh4 Bh4 29.Nc5+=) 28.Ng2 Be4 29.f3 Bf3 30.Ra2 (30.Rc2 Qc4 31.Nc1 b4-+) 30...Qc4 0–1. Tromp,Sander – Van den Bos,F.P, Nova Open Haarlem NED, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Be7 7.Bd3 Nc6 8.c3 Qc7 9.0-0 f6 (9...Bd7!?+=) 10.Bf4+- f5 11.c4 Nb4 12.cd5 Nd5 13.Bd2 Bd7 (13...b5 14.Qb3 Bb7 15.Rc1+-) 14.Qe2 (14.Qb3 Nh6+-) 14...b5 (better 14...Rc8!?+=) 15.Rc1+- Qb6 16.Nc3 Nc3 17.Bc3 Ba3 18.Bb2 (better 18.Rcb1 Bc6 19.Rb3+-) 18...Bb4? (better 18...Bb2 19.Qb2 Ne7+=) 19.d5 (19.a3 Ba5 20.d5 Ne7+-) 19...Ne7 20.d6 (20.Bd4!? Qd8 21.de6 Be6 22.Bb5 ab5 23.Qb5 Qd7 24.Qb4 0-0+-) 20...Nd5 21.Bf5 0-0 (21...ef5 22.Bd4 Qb8 23.a3 Ba3 24.Ra3+-) 22.Bd4 Qd8 (22...Qb7 23.Be4 Rfc8 24.Qb2+-) 23.Be4 Nf4 (23...Rc8 24.Qd3+-) 24.Qe3 Rc8 25.Bb6 Qe8 26.Rc8 (better 26.Bc7!? Qh5 27.h3 Nd5 28.Bd5 ed5+-) 26...Qc8 27.Bc7 (better 27.a3 Qc3 28.Ra2 Ba5 29.Ba5 Qa5+-) 27...Qe8 (27...Bc3 28.Rb1 b4 29.g3+-) 28.a3 (better 28.Rb1 Bc3 29.g3+-) 28...Ba3 (28...Bc3 29.Rc1 b4 30.ab4 Bb4+-) 29.Ra3 Qh5 (29...Bc6 30.Ra6 Be4 31.Qe4+-) 30.g3 (30.Ra6 b4 31.h3 g5+-) 30...Qg4 (30...Nh3 31.Kg2+-) 31.Ra2 b4 32.Ne1 (32.Rb2 g6+-) 32...Bb5 (32...Nh3 33.Kg2 Ng5 34.f3 Qh3 35.Kg1 Ne4 36.Qe4+-) 33.Bg2 (better 33.f3 Nh3 34.Kh1+-) 33...Ne2 (33...Ng2 34.Ng2 Qc4+-) 34.Re2! (34.Re2 Qe2 35.Qe2 Be2 36.d7+-) 1–0. Staniforth,Matthew (1870) – O'mahoney,Mike J (1745), British Chess Championships, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Be7 7.Bd3 Nc6 8.c3 f6 9.0-0 Bd7 10.a4 f5 (10...Rc8 11.Re1+=) 11.Re1 g5? (better 11...Rc8!?+=) 12.Ng5!+- Bg5 (12...Bg5 13.Qh5 Double attack (13.Qh5 Decoy)) 13.Qh5 Kf8 14.Bg5 Nce7 (14...Qe8 15.Qh4+-) 15.g4 (15.c4 h6+-) 15...Be8 (15...Qe8 16.Bh6 Nh6 17.Qh6 Kg8 18.Qg5 Ng6 19.gf5 ef5 20.Bf5 Bf5 21.Qf5+-) 16.Bh6 Nh6 17.Qh6 Kf7 (17...Kg8 18.Qe6 Bf7 19.Qf6 fg4 20.e6+-) 18.gf5 Nf5 (18...ef5 19.Qf6 Kg8 20.Bf5 Nf5 21.Qf5 Bg6+-) 19.Bf5 ef5 (19...Bd7 20.Bg4 Qg8 21.Kh1+-) 20.e6 Ke7 21.Qg7 Kd6 22.e7 Qd7 23.Qh8 Kc6 (23...b6 24.Qh7 Kc7 25.Re5+-) 24.Nd2 (24.Qh7 Rc8+-) 24...Kb6 (24...Qd6 25.Qh7 Bg6 26.Qg7+-) 25.Qf6 (25.Qh7 Ka7+-) 25...Ka7 26.Qe6 Qc7 (26...Qe6 27.Re6 Rc8 28.Re5 Rc3 29.Rf5+-) 27.Qd5 Bc6 (27...f4 28.Qc4 Qd7 29.Qe6+-) 28.Qc4 (28.Qc5!? b6 29.Qc4 Rc8+-) 28...Qf4 (28...Qd6+-) 29.Qc5 (29.Qc5 b6 30.Qc6 Rg8 31.Kf1+-) 1–0. Olsarova,T (2230) – Bohanesova,Vendula, TCh–CZE–SLO w Extraliga, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

6.d4 Be7 7.Bd3 Nc6 8.c3 h5 9.0-0+=.

6.d4 Be7 7.Bd3 Nc6 8.c3 h6 9.Qc2 Bg5 (9...Bd7 10.0-0=) 10.Ba3 Nge7? (better 10...Bd7+=) 11.h4+- (11.Ng5?! hg5 12.Nd2 Nf5+=) 11...Bf4 12.g3 Be5 13.de5 0-0 14.Nbd2 Bd7 15.Nb3 f6 16.Bd6 Be8 17.Nbd4 fe5 18.Be5 Ne5 19.Ne5 Rf6 20.Ng4 Rf7 21.0-0 (21.Ne6?! Qc8 22.Ng5 Qg4 23.Nf7 Bf7+/-) 21...Qd6 22.Rae1 Bd7 23.Bg6 (23.Qb2 Qc7+-) 23...Rff8 24.Bh7 Kh8 25.Ne5 Nf5 (25...Rf6 26.f4+-) 26.Bf5 ef5 27.h5 Kg8 28.Ng6 Rf7 29.f4 (29.Qb3!? Rd8 30.Re5 Qc7+-) 29...Rc8 30.Re5 Qa3 (30...Qc5 31.Qb3 Qc3 32.Rd5 Qb3 33.ab3+-) 31.Rfe1 Kh7 32.R1e3 (32.Rd5 Rc3 33.Qf2 Rg3 34.Kf1 Rh3+=) 32...Ba4 33.Qd2 Rfc7 (33...Bd7 34.Rd5 Qa4 35.Ne5+-) 34.Ne7 (worse 34.Nf5 Rc3 35.Rc3 Rc3 36.Nf8 Kh8+-; 34.Rd5?! Rc3 35.Nf5 Re3 36.Ne3 Be8+-) 34...Re8 35.Nd5 Re5 36.Re5 (36.fe5 Rd7 37.c4 Qc5+-) 36...Rc8 37.Rf5 Rd8 (37...Bc6 38.Nb6 Rb8 39.Qc2+-) 38.Re5 (better 38.Rf7 Kg8 39.Rg7 Kg7 40.Ne6 Kg8 41.Nd8 Qc5 42.Kh2 Qb5+-) 38...b5 (38...Kh8+-) 39.Qd3 Kh8 40.Qd2 (better 40.Qg6!? Qc1 41.Kg2 Bc2 42.Qc2 Qc2 43.Nc2 Rc8+-) 40...Kh7 41.Qd3 Kh8 42.Qe3 (better 42.Qg6 Qc1 43.Kg2 Bc2 44.Qc2 Qc2 45.Nc2 Rd6+-) 42...b4 (42...Rg8 43.Ne7 Qa2 44.Ng8 Qa1 45.Kf2+-) 43.Nb4 a5 (43...Rc8 44.Ne2 Bb5+-) 44.Ra5 1-0. Baeta,M (1895) - De Freitas,Leandro Henrique Co (1610), Niteroi BRA, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6)

6.d4 Bf8 7.Bd3 f5 8.g4 (8.0-0 Nc6+-) 8...g6 (8...Ne7!?+=) 9.gf5+- ef5 (9...gf5 10.Ng5 h5 11.Rg1+-) 10.h4 (10.0-0!? Nc6+-) 10...Nc6+- 11.h5 Bg7 12.c3 Nge7 (better 12...Nh6!?+-) 13.h6+- Bf8 14.Bg5 Qa5?? (better 14...Qb6 15.Bf6 Rg8+-) 15.Bf6 Rg8 16.Ng5 Nd4 (16...Qb6 17.Qb3 Qb3 18.ab3+-) 17.Nh7 Bh6 18.Rh6 Bd7 (18...Ne6 19.Qd2+-) 19.a4 (19.Ng5 Ba4 20.Qc1 Ndc6+-) 19...b5 (19...Ne6+-) 20.Bg5 (20.Ng5 Rf8 21.Be7 Ke7 22.Rh7 Ke8+-) 20...Kf7 21.Nf6 Rh8 (21...Ne6 22.Ng8 Rg8 23.Bf6+-) 22.Nd7 (better 22.Rh8!? Rh8 23.Nd7 Ne6 24.Be7 Ke7+-) 22...Rh6 23.Bh6 Rh8 (23...Ne6 24.Ke2 b4 25.Be3+-) 24.Bd2 (24.Be3!? Qc7 25.cd4 Qd7+-) 24...Rh1 (24...Ne6 25.f4+-) 25.Bf1 Ne6 26.Qf3 (better 26.f4 Rh2 27.Be3 d4 28.Bd4 b4+-) 26...Rg1 (26...Rh8 27.c4 b4 28.Qb3+-) 27.c4 (better 27.Qh3 f4 28.Qh7 Ng7+-) 27...Qc7 (27...b4 28.Qh3 dc4 29.Qh7 Ke8 30.Nf6 Kd8 31.Qh8 Kc7 32.Ne8 Kb8 33.Nd6 Nd8 34.Be3 b3 35.Bd2+-) 28.cd5 Nd4 (28...Qd7 29.de6 Qe6+-) 29.e6 Kg8 (29...Ke8 30.Qd3 Nc2 31.Ke2 Nd5 32.ab5+-) 30.Nf6 Kg7 31.Ne8 Kf8 (31...Kg8 32.Nc7 Nf3 33.Ke2 Nd4 34.Kd3 Ne6 35.de6 Rf1 36.ab5 ab5 37.Bg5 Rd1 38.Ke2+-) 32.Nc7 Nf3 33.Ke2 Nd4 34.Kd3 Nb3 35.Ra3 (better 35.Bh6 Kg8 36.d6 Nc5 37.Ke2 Nc6+-) 35...ba4 (35...Nc5 36.Ke2 Nd5 37.Nd5 Ne6+-) 36.d6 Nc6 37.Bh6 (37.Bh6 Kg8 38.e7 Nb4 39.Kc3 Kh7 40.e8Q Rg3 41.fg3 Nd2 42.Qf8 Ne4 43.Kb4 a5 44.Ka5 Nd6 45.Qg7) 1–0. Haub,Thorsten Michael (2295) – Thiemonds,Uli (2090), Eupen op, 1993. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 a6 5.bc5 Bc5)

4.e5 b6

5.a3 cb4= 6.c3 ba3 7.Na3 Qc7 (better 7...a6!?=+) 8.Nb5+= Qd7 9.Nfd4 (9.Ba3 Ba3 10.Ra3 f6+=) 9...Ba6 (better 9...Kd8!?=) 10.Ra6+- Na6 11.Nd6! Bd6 12.Bb5 (12.Bb5 Qb5 13.Nb5+-) 1–0. pierred (2765) – rpatru (2180), net–chess.com, 2010.

5.a3 cb4 6.d4 Ba6 7.Bd3 (7.Ba6 Na6 8.c3 b3=) 7...Qc7 (7...Bd3!? 8.Qd3 Qc7=+) 8.Ba6= Na6 9.ab4 (9.c3!? b3 10.Qb3=) 9...Nb4-/+ Exerts pressure on the backward pawn 10.c3 Nc6 11.Ba3 Be7 12.Qa4 (12.0-0 Nh6-/+) 12...a6-/+ 13.0-0 b5 14.Qc2 Nh6 15.Nbd2 0-0 16.Rfb1 Rfc8 17.Qd3 Rcb8 Black prepares the advance b4 18.Be7 Qe7 19.Nb3 a5 Black prepares b4 20.Nc5 b4 21.Na6 Rb6 22.Nb4 Nb4 23.cb4 Rb4 24.Rc1 Qb7 25.Ra3 Qb5 26.Qb5 Rb5 27.Kf1 g6 28.Rca1 Nf5 29.g4 Ne7 30.R1a2 Nc6 31.Ke2 Rb4 32.Kd3 Rc4 33.Ra1 Rb8 34.Rc3 Rbb4 35.Rc4 dc4 36.Ke4 Rb2 37.Rc1 Rb4 (37...Nb4!? 38.Rc4 Nd5-+) 38.Nd2 (38.Ra1 a4 39.Ne1-/+) 38...c3=+ 39.Rc3 Nd4 (worse 39...Rd4 40.Ke3 Rd2 41.Kd2 Ne5 42.h3+=) 40.Rc4 Nc6 41.Rb4 ab4 42.f4 ½-½. Ultanir,Guray - Taskin,Arda (1720), TCh-TUR Club, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

5.a3 Qc7 6.c3 a5 7.bc5 bc5 8.a4 Nc6 9.Bb5 Bd7 10.Qe2 Nge7 11.0-0 Ng6 The pressure on e5 grows 12.d4 Be7 13.g3 (13.Ba3 0-0=) 13...0-0=+ 14.h4 Rfc8 15.h5 Nf8 16.Na3 (16.h6 cd4 17.hg7 Kg7 18.cd4 Nb4=) 16...Qb6 17.Rd1 cd4 18.cd4 Nb4 (18...Na7 19.Bd7 Nd7 20.h6=+) 19.Bg5 (19.h6 Bb5 20.ab5 g6=) 19...Bb5 (19...Bg5 20.Ng5 h6 21.Nf3=) 20.Nb5 Rc2 21.Qe3 f6 22.ef6 gf6 23.Bh6 Kf7 24.Re1 Rac8 25.Qf4 (25.Rab1 Nd7=) 25...Nd3 26.Ne5 Ne5 27.de5 Nd7 28.Rab1 Qc5 (28...R8c4 29.Nd6 Bd6 30.Rb6=) 29.ef6 (29.Nd4 Rc4 30.Ne6 Ne5 31.Nc5 Rf4 32.Bf4 Nf3 33.Kf1 Ne1 34.Rb7 (34.Re1?! Rc5 35.Rd1 Rc4=) 34...Rc5 35.Bd6+- (35.Ke1?! Ke6=)) 29...Rc4? (29...Nf6 30.Nd4 Rc4 31.Qe5+=) 30.Qf3 (better 30.fe7 Rf4 31.Bf4+-) 30...Nf6= 31.Bg5 (31.Rec1 Qb6=) 31...Ra4=+ 32.Bf6 Bf6 33.Qd3 Rg8? (33...Rg4 34.Qh7 Rg7=+) 34.Rec1+- (worse 34.Qh7 Rg7 35.Qd3 Rf4=) 34...Rc4 (34...Qf8 35.Rc7 Be7 36.Nd6 Kf6 37.Qf3 Kg7 38.Qf8 Rf8 39.Re7 Kf6 40.Rh7 Ke5+-) 35.Nd6! Qd6 36.Rc4 Be5?? (better 36...Qe7 37.Rc6 h6+-) 37.Rb7 (37.Rb7 Qe7 38.Qh7 Rg7 39.Rf4 Bf4 40.Re7 Ke7 41.Qg7 Kd6 42.gf4+-) 1–0. Coll Enriquez,L (2180) – Pelling,Tim, 10th TCh–Euro sen, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Qc7 6.c3 c4 7.d4 cd3 8.Bd3 f6 9.Bf4+= Nc6 10.Qe2 (10.0-0 a6+=) 10...g5= 11.Bg3 Qe7? (better 11...g4 12.Nd4 Nd4 13.cd4 Qc1 14.Qd1 Qb2+=) 12.ef6+- Qf6?? (better 12...Nf6 13.Ng5 a6+-) 13.Bb5 e5 (13...Bd7 14.Bc6 Bc6 15.Be5+-) 14.Be5 (14.Be5 Qg6 15.Bh8 Kd8 16.Ng5+-) 1–0. Orozco,R – Merritt,M, Wch U20 Gausdal, 1986. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Qc7 6.c3 Ne7 7.d4 cd4 8.cd4+= Nf5 (8...a5 9.ba5 Nf5 10.g4+=) 9.Bd3 (9.g4 Nh6+=) 9...Be7 (9...a5 10.b5+=) 10.Bd2 (better 10.0-0+=) 10...0-0? (10...Nc6 11.Bf5 ef5 12.Nc3=) 11.h4 (11.g4 Nh6+-) 11...g6 (better 11...Nc6!? 12.Qc2 Qb7 13.Bf5 ef5=) 12.g4+- Ng7 (12...Nd4 13.Nd4 Qe5 14.Be3 a5+-) 13.Bh6 (13.h5!?+-) 13...a6 (13...Bb7 14.h5+=) 14.h5+= Nc6 (14...Bd7!?+=) 15.Qd2+- Bd7 (15...a5 16.b5 Nb4 17.ab4 Bb4 18.Qb4 ab4 19.Ra8 Bb7 20.Rf8 Kf8 21.hg6 hg6+-) 16.Bg7+- (16.Bg7 Kg7 17.hg6 fg6 18.Qh6 Kf7 19.Nbd2 (19.Qh7?! Ke8 20.Qh3 Nd4 21.Nd4 Qe5 22.Qe3 Bf6+=) 19...Nd4 20.Qf4 (20.Nd4?! Qe5 21.Qe3 Qe3 22.fe3 Kg8+=) 20...Kg8 21.Qd4+-) 1–0. Headlong,Benjamin (1675) – Asbury,Jon A, Witney Congress, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Nd7 6.c3 f5 7.d4+= Be7 8.h4 (8.Bb5 a5+-) 8...c4 9.a4 a6 10.g4 g6 (10...fg4 11.Ng5 Nf8 12.Qg4+=) 11.gf5 ef5 12.Na3 (12.a5 b5+=) 12...Nf8 13.Bg2 Ne6 14.Ng5 Ra7 (14...h6 15.Nh3+=) 15.Qf3 Ng5 16.hg5 Be6 17.Nc4 (17.Qe3!?+=) 17...dc4=+ 18.d5 (18.Qc6 Bd7 19.Qc4 Kf8=+ (19...Bg5?? 20.Rh7 Qe7 21.Rh8+-)) 18...Bc8 19.d6 Bb7 ½–½. Lindgren,Fredrik (2200) – Dock,Lars, SWE–ch qualA, 1997. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 b6)

5.a3 Nd7 6.c3 f6 7.d4 fe5 8.de5 Qc7 9.Bf4 Be7 10.Bd3 Nh6 11.Qc2 (11.bc5 bc5 12.Bh6 gh6=) 11...g5= 12.Bg3 g4 13.Ng1 Bb7 (13...Ne5 14.h3=+) 14.Ne2 (14.Bh7 Ne5 15.Bg6 Kd7=) 14...0-0-0 (14...Ne5 15.Bh7 0-0-0 16.Bg6=+) 15.Nd2 (15.bc5!? bc5 16.Bh7 Ne5 17.Bg6=) 15...Ne5=+ 16.bc5 bc5 (16...Bc5 17.Nd4 Nd3 18.Qd3=+) 17.Bb5 ½–½. Vogiatzis,D (2065) – Weiss,Michael, LGA Premium Cup, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 f5 6.ef6 Nf6= 7.Bb2 (7.bc5 bc5 8.Nc3 Bd6=) 7...cb4=+ 8.ab4 (8.Ne5 ba3 9.Na3 a6=+) 8...Bb4-/+ 9.Bd3 Nbd7 (9...0-0 10.0-0-/+) 10.0-0 (10.Nd4 Nc5 11.Bb5 Bd7=) 10...Nc5 (10...0-0 11.Nd4 Nb8 12.Qe2=+) 11.Be2 (11.Bb5 Bd7 12.Bd7 Qd7= (12...Kd7? 13.Ne5 Kc7 14.Nf7+-)) 11...Nce4 (11...Bd7 12.Bd4 Nb7 13.Nc3=+) 12.d3= Nd6 13.Ra4 (13.c3 Ba5=+) 13...Ba5=+ 14.Rh4 (14.Nbd2 b5 15.Ra2 0-0=+) 14...Nf5 15.Rh3 0-0 16.Ne5 d4 (16...b5 17.c4 Ba6 18.c5-/+) 17.g4 (17.Ba3!? Ne7 18.Bf3=) 17...Ne7-/+ 18.f4 (18.Bf3 Rb8-/+) 18...Nfd5-+ 19.Bc1 Bb7 20.Bf3 Rc8 21.Be4 White prepares the advance f5 21...g6 22.f5 (22.Qe2 Rc5-/+) 22...ef5 (22...gf5 23.gf5 ef5 24.Qh5+-) 23.gf5 Ne3 (23...Qc7!? 24.Nf3 Nf5 25.Bf5 Rf5 26.Nd4 Rf1 27.Qf1 b5-+) 24.Be3 (24.Re3!? de3 25.Bb7=) 24...Be4-/+ 25.de4 de3 26.Qe2 (26.Re3!? Qd1 27.Rd1 gf5 28.Rd7-/+) 26...Qd4-+ (26...gf5 27.Qh5 Rf6 28.Qh7 Kf8 29.Rg3+-) 27.Ng4 White prepares f6 27...Rc2! 28.Qe3 (28.Qc2 e2 Double attack (28...e2 Passed pawn)) 28...Qe3 29.Ne3 Re2 30.f6 Nc6 31.Na3 (better 31.Rc1!? Ne5 32.Kf1-+) 31...Bb4 32.Nac4 (32.Nac2 Bc5 33.Rf2 Rf2 34.Kf2 Ne5-+) 32...Bc5 (better 32...b5 33.Rf4-+) 33.Kh1 (33.Rf2 Rf2 34.Kf2 Rf6 35.Kg3-+) 33...b5 34.e5 bc4 35.e6 (35.Nc4 Ne5 36.Ne5 Re5 37.Rc3-+) 35…Re3 (35...Re3 36.Re3 Be3-+) 0-1. Fier,A (2560) - Derjabin,I (2330), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

5.a3 f6 6.d4 (6.bc5 bc5 7.Nc3 c4=) 6...cd4 (6...cb4!? 7.Bd3 Nc6=) 7.Nd4+= g6 (7...Bd7 8.Bd3+=) 8.Bb5 Kf7 9.f4 (9.Qf3 a6 10.Be2 Nd7+=) 9...fe5 (9...a5 10.ba5 fe5 11.Nf3 ef4 12.Qd4+=) 10.fe5 (10.Bc6 Nc6 11.Nc6 Qh4 12.g3 Qh3 13.Ne5 Ke8+=) 10...Qh4= 11.g3 (11.Kf1 Bd7=) 11...Qe4 12.Kf2 Qe5 13.Rf1 (better 13.Re1 Qg7 14.Kg2=) 13...Bh6?? (better 13...Bg7 14.Kg1 Bf6=) 14.Kg2+- Kg7 15.Qf3 Qe4 (15...Nf6 16.Bh6 Kh6 17.Qf6 Qf6 18.Rf6+-) 16.Qe4 de4 17.Ne6! Be6 18.Bb2 Nf6 19.Rf6 (19.Bf6?! Kg8 20.Nc3 Bg7+-) 19...Bc1 20.Bc1 (better 20.Be5!? Nd7 21.Bd7 Bd7 22.Rd6 Kf7 23.Bh8 Be6+-) 20...Kf6 21.Bb2 Kf5 22.Bh8 h6 (22...a6 23.Be2 Nc6 24.Bb2+-) 23.Ba4 (23.Nc3 g5 24.Rf1 Kg6+-) 23...b5 (23...Bd7 24.Bb3 Nc6 25.Bg7+-) 24.Bb3 (better 24.Nc3 Bc4 25.Nb5+-) 24...Bb3 25.cb3 Nc6 26.Bc3 e3 (26...Re8 27.Ra2 Ne5 28.Rf2 Ke6 29.Rf4+-) 27.Kf3 Re8 28.Ra2 h5 (28...Re4 29.Re2+-) 29.h3 (29.Re2 g5 30.Re3 g4 31.Kf2 Rd8+-) 29...Re4 (29...g5 30.g4 Kg6 31.Re2+-) 30.Re2 g5 31.Re3 g4 (31...Re3 32.Ke3 Ne7 33.Bd4+-) 32.hg4 hg4 33.Kf2 (33.Ke2 Re7+-) 33...Ne7 (33...Re7 34.Nd2+-) 34.Nd2 Re6 35.Re6 Ke6 36.Ke3 Nd5 (36...Kf5 37.Kd4+-) 37.Kd4 Nf6 (37...Nc3 38.Kc3 Ke5 39.Kd3+-) 38.Ne4 (38.Kc5 Nd5 39.Ne4 Ne3+-) 38...Nh5 (38...Nd5 39.Bb2+-) 39.Be1 1–0. Ciuffoletti,Paolo (2205) – Ladanyike Karakas,Eva (2070), Caorle op, 1981. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 g6 6.c3 Bg7 7.d4 Ne7 8.Bd3 (8.Be2 0-0+=) 8...a5 9.b5 Qc7 10.a4 Nd7 11.0-0 f6 12.ef6 Nf6 13.Re1 cd4 (13...0-0!?+=) 14.cd4+- Nh5 15.Ra2 0-0 16.Rc2 Qb8 17.Ne5 Ra7 18.Nd2 (18.Ba3 Be5 19.Re5 Rb7+-) 18...Rc7 19.Ndf3 Nf4? (19...Rc2 20.Qc2 Nf4 21.Bf4 Rf4 22.Qc3+-) 20.Ba3 (better 20.Bf4 Rc2 21.Ng6 Rf4 22.Nf4 Rc3+-) 20...Bb7?? (better 20...Rc2 21.Qc2 Nd3 22.Qd3 Qb7+-) 21.Bd6+- Rc2 (21...Nd3 22.Rc7 Be5 23.Ne5 Nf5 24.Qd3 Nd6 25.Rh7 Rf5+-) 22.Bb8 Ra2 (22...Be5 23.Be5 Nd3 24.Qd3+-) 23.Bd6 Be5 (23...Re8 24.Qb3 Be5 25.Ne5+-) 24.de5 (24.Ne5 Nd3 25.Nd3 Rf7 26.Re6 Bc8 27.Re7 Re7 28.Be7 Bg4+-) 24...Rf7 25.Bb1 Ra1 (25...Rb2 26.Ba3 Rb1 27.Qb1+-) 26.Ng5 1–0. Novak,Ivan (2290) – Kijac,Miroslav, SVK–ch Bratislava, 1986. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Nh6 6.c3 a5 7.b5 d4 8.Bb2 (8.cd4 cd4 9.d3 Nf5=) 8...dc3 9.dc3 (9.Nc3 Bb7=) 9...Qd1 10.Kd1 Nd7 11.Nbd2 (11.Ke1!?=) 11...Ng4-/+ 12.Ne4 (12.Ke1 Nge5 13.Ne5 Ne5=+) 12...Bb7 13.Nfd2 Nge5 14.Kc2 Be7 15.c4 (15.Re1 Rd8-/+) 15...0-0 16.Be2 (16.Re1 Ng6-+) 16...f5-+ 17.Ng3 Ng6 (17...Bg2!? 18.Rhg1 Bb7 19.Rae1-+) 18.Bf3-/+ Bf3 19.Nf3 Bf6 (19...e5 20.Rad1 Rad8 21.Bc1-/+) 20.Rad1 (20.Bf6 Nf6 21.Rhe1=) 20...Nde5 (20...Rad8!?-/+) 21.Ne5 Be5 22.Rhe1 (22.Be5 Ne5 23.Rhe1 Nc4=) 22...Bb2=+ 23.Kb2 Nf4 24.Rd6 (24.Rd7 Rad8 (24...Ng2?! 25.Re6 Rad8 26.Rb7 Rd2 27.Kc3+=) 25.Red1 Rd7 26.Rd7 Rb8-/+) 24...Rad8-/+ (24...Ng2?! 25.Ree6 Rad8 26.Nh5=) 25.Red1 Rd6 26.Rd6 Rb8 (worse 26...Ng2 27.Rb6 Kf7 28.Ra6=) 27.Nf1 Kf7 28.Rd7 Kf6 29.g3 Ng6 30.Ne3 (30.f4 e5 31.Ne3 ef4 32.Nd5 Ke5 33.gf4 Nf4 34.Nf4 Kf4 35.Rg7 h5-/+) 30...Ne5 31.Rd1 Ke7 32.f4 Nf3 33.h3 Rd8 34.Rd8 Kd8 35.Kc2 g5 36.Kd3 gf4 37.gf4 Kd7 38.Ng2 Kd6 39.Ke3 Nd4 40.Ne1 h6 (40...e5 41.fe5 Ke5 42.Nd3 Kd6 43.Kf4-/+) 41.a4 (41.Nd3 Ke7=+) 41...e5-/+ 42.Nd3 (42.fe5 Ke5 43.Nd3 Kf6-/+) 42...e4 43.Ne5 Ke6 44.h4 Nb3 45.Nc6 Nc1 46.Ne5 h5 47.Kd2 Nb3 48.Ke3 Nd4 49.Kd2 Nf3 ½–½. Franck,B (2000) – Siepmann,M (2125), 24th Open Bethune FRA, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Nh6 6.c3 a5 7.bc5 bc5 8.d4 Nf5 9.Bd3 Be7 10.0-0 (10.dc5 Bc5 11.Bf5 ef5=) 10...Ba6= 11.Re1 (11.Ba6 Na6 12.dc5 Nc5=) 11...Bd3=+ 12.Qd3 0-0 13.a4 (13.dc5 Na6=) 13...Nc6 14.Na3 cd4 15.Nd4 Nfd4 16.cd4 Nb4 (16...Rb8 17.Nb5=) 17.Qg3 Bh4 18.Qb3 f5 (18...Rc8 19.Be3=) 19.Bd2 Be7 20.f4 (20.Nb5 Rc8 21.Rec1 Qd7=) 20...Qd7 21.Rec1 Rfc8 22.Nb5 Rab8 23.g3 (23.Bb4 Bb4 24.Qd3 Qd8=) 23...h6 24.Rab1 Rc1 25.Rc1 Rc8 26.Rc8 Qc8 27.Qc3 Qc3 28.Bc3 g5 29.Kf2 Kf7 30.Ke2 Nc6 31.Bd2 g4 32.Kd3 h5 33.Be1 Ke8 34.Kc2 Kd7 (34...Kd8 35.Kd3=) 35.Kb3 (35.Kd3 Kd8=) 35...Kc8 36.Kc2 Kd7 37.Kb3 Bf8 38.Kc2 Bh6 39.Kd3 Bf8 40.Kc2 Be7 41.Kb3 Kc8 42.Kc2 Kb7 43.Kb3 Kb6 44.Kc2 Nd8 45.Kd3 Nf7 46.Ke2 Nh8 47.Bc3 Ng6 Black prepares the advance h4 48.Kf2 h4 49.Kg2 Bb4 50.Kf2 h3 51.Kg1 (51.Kf1 Ne7=+) 51...Nf8 52.Kf2 Nd7 53.Ke3 Kc6 54.Bd2? (54.Bb4 ab4 55.Kd3-+) 54...Nb6-+ 55.Nc3 Bc3 56.Bc3 Na4 (better 56...Kb7!?-+) 57.Ba5-/+ Kb5 58.Be1 Kc4 59.Bf2 (59.Ba5-+) 59...Nc3 60.Bg1 Nb5 (60...Nb5 61.Kf2 Nd4-+) 0–1. Gueci,Tea (2155) – Sedina,E (2310), 77th ch–ITA Women, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Bb2 cb4 6.c3 Nc6 7.a3=.

5.Bb2 cb4 6.d4 Qd7 7.Bd3 Ba6 8.Qe2 (8.Ba6 Na6 9.0-0 Be7-/+) 8...Bd3-/+ 9.Qd3 Nc6 10.0-0 Nh6 11.Bc1 Rc8 (11...Nf5 12.Bg5-/+) 12.a4? (12.Bh6 gh6 13.a3 Be7=) 12...Na5 (12...Nf5 13.Bg5-/+) 13.Nbd2? (better 13.Bh6 gh6 14.Ra2=+) 13...Rc3-+ 14.Qa6 Rc2 15.Ne1 Rc6 16.Qd3 Nf5 17.Nef3 h5 (17...Rc3 18.Qa6-+) 18.Bb2 (18.Rb1 Nc4-+) 18...Be7 19.Rfc1 0-0 20.Rc6 Qc6 21.h3 Rc8 22.Rc1 Nc4 0–1. Schiappoli,D (1925) – Drasko,M (2465), 1st ASDEC Open A, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Bb2 Qd7 6.b5 a6 7.a4 Bb7 8.d4 (8.Nc3 Ne7+=) 8...ab5 (8...Nh6!?=) 9.Bb5+= Bc6 10.c4 Bb5 (10...dc4 11.Nbd2+=) 11.ab5+- (worse 11.cb5 Nh6=) 11...Ra1 12.Ba1 dc4 13.Nc3 (better 13.Qa4+-) 13...cd4=+ 14.Qd4 Qc7 (better 14...Qd4 15.Nd4 Nd7=+) 15.Ne4+- Bc5 16.Nd6 Kf8 (16...Qd6!? 17.ed6 Bd4 18.Bd4 Nf6+-) 17.Qf4+- Bb4 (17...Qd7 18.0-0 Bd6 19.ed6 Qb5 20.Ng5+-) 18.Ke2 Nh6 (18...Bd6 19.ed6 Qd8 20.Rc1+-) 19.Ng5 Kg8 20.Rd1 (better 20.Rc1 Bc5 21.Rc4+-) 20...Nd7?? (20...Qe7+-) 21.Ndf7 (better 21.Ngf7!? Nf8 22.Nh8 Qe7+-) 21...Nf8 22.Nd6 (22.Nd8 Be7 23.Nde6 Ng6+-) 22...Ng6 (22...Nf5 23.Ne6! Ne6 24.Qf5+-) 23.Qf3 (23.Qc4!? Qc4 24.Nc4 Be7 25.Ne6 Kf7 26.Ng7 Nf4 27.Kf3 Rf8 28.Kf4 Kg7 29.Ke4 Rf2 30.Nb6 Rg2+-) 23...Qa7 (23...Qe7 24.h4 Qf8 25.Nc4 Qf3 26.Kf3 Nh4 27.Ke4+-) 24.Qc6 (24.Bc3 Bc3 25.Qc3 Qa2 26.Rd2 Qb3 27.Qc4 Qc4 28.Nc4 Nf7 29.Ne6 Nfe5 30.Ne5 Ne5 31.Rd8 Kf7 32.Rh8 Ke6 33.Rh7 Kf6+-) 24...Qa2 25.Kf1 Bc5 (25...Qc2 26.Qf3 Qb3+-) 26.Nde4 c3 (26...Nf8 27.Bc3 Nf7 28.Nf7 Kf7 29.Rd8+-) 27.Bc3 (better 27.Nc5 Nf8 28.Bc3+-) 27...Nf4 (27...Qc4 28.Ke1 Qb3 29.Rd8 Nf8+-) 28.Rd8 Bf8 29.Rf8! Kf8 (29...Kf8 30.Bb4 Mate attack) 30.Bb4 (30.Bb4 Kg8 31.Qc8) 1–0. Filipi,Stepan (2120) – Splichal,Petr (1990), TCh–CZE, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.Bb2 Qd7)

5.Bb2 Ne7 6.c3 (6.bc5 bc5 7.Nc3 Ng6=) 6...Nf5 (6...Nd7 7.Qa4=) 7.bc5 (7.Be2 Be7=) 7...Bc5 8.d4 Be7 9.Ba3 (9.Bd3 0-0=) 9...0-0 10.Be7 Qe7 11.Bd3 (11.Qa4 Bd7 12.Qa3 Qa3 13.Na3 Rc8=) 11...Ba6 12.Qe2 (12.Bf5 ef5 13.Nbd2 Qe6=) 12...Bd3 13.Qd3 ½–½. Batalla Batalla,Josep (2125) – Antigua Padros,Jordi (2160), Calvia ESP, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Bb7 6.d4 a6 7.Be2=.

5.b5 Bb7 6.d4 cd4 7.Qd4 Nd7 (7...a6 8.Qa4=) 8.a4 (8.Bd3 Qc7=) 8...Rc8 (8...Qc7 9.Bd3=) 9.Bd3 Nc5 10.0-0 Ne7 11.Nbd2 Nd3 12.cd3 Nf5 13.Qb2 Qc7 14.Nd4 (14.a5 ba5 15.Nb3 d4 16.Nbd4 Nd4 17.Nd4 Qe5 18.Ra5 Bc5=+) 14...Nd4 (14...Qe5!? 15.N2f3 Qf6-/+) 15.Qd4= Qc3 (15...Bc5 16.Qf4=) 16.Nf3 Qd4 17.Nd4 Bb4 18.Bb2 Kd7 19.Rfc1 Rc1 20.Rc1 Rc8 21.Rc8 Kc8 22.Kf1 Kd7 23.Ke2 a6 24.f4 ab5 25.ab5 Ke7 26.Nb3 Kd7 27.Bd4 Kc7 28.Bb2 Bc8 29.Nd4 Bd7 30.h4 Kd8 31.g4 g6 (31...Bc5 32.Kf3=) 32.h5 (32.g5 Kc7+=) 32...Kc7 (32...gh5 33.gh5 Bc5 34.Kd2=) 33.h6+= Kc8 34.Nf3 (34.g5 Bc5+=) 34...Be7 35.Nd4 ½–½. Snijders,Frans – Jonkheer,A, Vlissingen HZ op, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Bb7 6.d4 Nd7 7.c3 (7.Be2 cd4 8.Qd4 Ne7=+) 7...Rc8 (7...Ne7 8.Bd3=) 8.Bd3 Ne7 9.Bg5 (9.0-0 Ng6=) 9...Qc7 (9...h6 10.Bd2 Ng6=) 10.a4 (10.0-0 Nf5+=) 10...Ng6 (10...cd4 11.cd4 f6 12.ef6 gf6 13.0-0=+) 11.h4 (11.0-0 h6 12.Be3 Be7=) 11...cd4 (11...f6 12.ef6 gf6=+) 12.Bg6 (better 12.cd4!? f6 13.ef6 gf6 14.Be3=+) 12...hg6-+ (worse 12...fg6 13.cd4 Qc4 14.Bd2-/+) 13.cd4 (13.Qd4 Bc5 14.Qf4-+) 13...Bb4 (13...f6 14.ef6 gf6 15.Bd2-+) 14.Bd2-/+ Bd2 (better 14...Be7!?-/+) 15.Nbd2= 0-0 (15...f6 16.0-0=) 16.0-0+= Qc2 (16...Qc3 17.Qb1+=) 17.Qe2 (17.a5 f6+=) 17...Rfe8 (17...Rc3 18.a5=) 18.Rfe1 (18.a5 Rc7=) 18...Qc3 (18...Rc3 19.a5=) 19.Qe3 Qe3 20.Re3 Rc7 (20...Rc2 21.a5=) 21.Kf1 (21.a5 ba5 22.Ra5 Ra8=) 21...Rec8 22.Ke2 Kf8 (22...a5 23.Ng5=) 23.Raa3 (23.a5 Rc2+=) 23...Ke7 (23...a5 24.Reb3=) 24.Ng5 (24.a5 f6+=) 24...Nf8 (24...a6 25.Rg3=+) 25.f4 (25.a5 Rc2=) 25...f6 (25...a5 26.Reb3=) 26.Ngf3 a5 27.Reb3 Nd7 (27...Rc1 28.Kd3+=) 28.Kd3+= Rc4 (28...Rc1 29.Rc3=) 29.Rc3 Rc3 (29...R4c7 30.Rc7 Rc7 31.Rc3 Rc3 32.Kc3+=) 30.Rc3 Rc3 31.Kc3 Nf8 (31...Kf7 32.Nf1+=) 32.Kd3 Bc8 (32...Nd7 33.Nf1+=) 33.Nb1 Bd7 (33...Bb7 34.Nc3+=) 34.Nc3 Be8 (34...Bc8 35.g3+=) 35.g4 Nh7 (35...f5 36.g5+=) 36.Nd2 (36.Ne1 Nf8+=) 36...f5 (36...Nf8 37.Nf1+=) 37.g5 Kd8 ½–½. Slusnys,Evaldas (1855) – Vizinis,Jonas, Kaunas Lithuania, Team Championship, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Bd7 6.c3 a6 7.ba6 Na6 8.d4 Ne7 9.Bd3 cd4 10.cd4 Nb4 11.Ba3 Nd3 12.Qd3 Ng6 13.Bf8 (13.0-0 Ne7=) 13...Nf8 (13...Nf4!? 14.Qf1 Rf8=+) 14.0-0+= Ng6 15.Na3 0-0 16.g3 (16.Rfb1 f6=) 16...Ra4 17.Nb5 Ne7 (17...f6 18.Rfe1=+) 18.Rfb1 Qa8 (18...Nf5 19.Rb3=) 19.Nd6 Ra2 (19...Qa7!?=) 20.Ra2+= Qa2 21.Rb6 Nc6 (21...Nf5 22.Nf5 ef5 23.Kg2+=) 22.Rb7 Bc8 23.Rc7 (23.Ng5 g6 24.Nc8 Rc8+-) 23...Nb4 (23...Ba6!? 24.Qd1 Be2+=) 24.Qc3 Qb1 25.Kg2 Nd3?? (better 25...Ba6 26.Qc1 Qd3+=) 26.Nd2 (better 26.Rc8 g5 27.Qc7 Ne1 28.Ne1+-) 26...Ba6?? (26...Ne1 27.Kh1 Qd1+-) 27.Nb1 1–0. Olsarova,T (2265) – Jinova,L (2095), ch–CZE Blitz w, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Nd7 6.Bb2 Qc7 7.Qe2 Ne7 8.Na3 (8.g3 a6=) 8...Ng6 Increases the pressure on e5 9.g3 Secures f4+h4 9...a6 (9...c4 10.Nb1=+) 10.Bg2 Ra7 11.0-0 d4 This push gains space 12.Rfe1 Bb7 13.ba6 Ba6 14.Nb5 Bb5 15.Qb5 White has the pair of bishops 15...Be7 16.c3 c4 17.Nd4 Nge5 18.Re5 Qe5 19.Qc4 Black wins the exchange 19...Rc7 Black threatens to win material: Rc7xc4 20.Nc6 White threatens to win material: Nc6xe5 20...Qc5 Black threatens to win material: Qc5xc4 (better 20...Qg5!? should be examined more closely 21.Bc1 Qf6=) 21.Qa4+- 0-0 22.d4 Qd6 23.Ne7 Qe7 24.Ba3 White threatens to win material: Ba3xe7 24...Nc5? (24...Qd8!? 25.Bf8 Nf8+-) 25.Qb5 (25.dc5 bc5 26.Bc1 Ra7+-) 25...Ra7 (better 25...Qd7!? 26.Qb4 Rfc8 27.dc5 bc5+-) 26.Bb4+- (26.Bc5?! is clearly weaker 26...bc5 27.dc5 g6=; 26.dc5?! Ra3 27.cb6 Rb8+-) 26...Rc8 27.Qb6 Na4 28.Be7! Decoy: e7 28...Nb6 (28...Re7 29.Qb4 Decoy Double attack) 29.Bc5 Rb8 (29...Rc5 30.dc5 Na4+-) 30.Rb1 Ra6 31.Bf1 Nd7 32.Rb8 (32.Ba6 is no comparison 32...Rb1 33.Kg2 Ra1=+) 32...Nb8 33.Ba6 Na6 34.Bd6 f6 35.Kf1 Kf7 36.f4 Ke8 37.Ke2 Kd7 38.Bf8 g6 39.Bg7 f5? (39...Nc7+-) 40.Be5 Kc6 41.Kd3 Kb5 42.Bd6 (better 42.c4 and White wins 42...Ka4 43.Kc3+-) 42...Kc6 43.Be5 Twofold repetition 43...Kb5 44.c4 Ka4 45.Bd6 Ka5 (45...h6 doesn't change the outcome of the game 46.d5 ed5 47.cd5+-) 46.Kc3 Ka4 47.a3 Ka5 (47...h6 is no salvation 48.c5+-) 48.Kb3 h6 (48...Kb6+- is one last hope) 49.h4 Kb6 50.Ka4 Kc6 51.Ka5 (51.Ka5 Nc7 52.Bc7 Kc7 53.Kb5+-) 1–0. Balzert,Antonius – Wimmer,Olivier, Verbandsliga Sued Baden, 2000. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 b6 5.b5 Nd7)

5.b5 Nd7 6.c3 f6=+ 7.d4 fe5 (7...cd4 8.cd4 fe5 9.de5=) 8.de5 (8.Ne5 Ne5 9.de5 Qc7=+) 8...c4 (8...Qc7 9.Bf4=+) 9.Bf4= Ne7 10.g3 (better 10.Nd4!? Nc5 11.Nd2=) 10...Ng6-/+ 11.Nd4 Nge5?? (11...Nc5 12.Nd2-/+) 12.Be5 (better 12.Ne6 Qe7 13.Nc7 Kd8 14.Qd5+= (14.Na8?? Nf3)) 12...Ne5-/+ 13.Qh5 (13.f4 Nf7 14.Bh3 Qf6-/+) 13...Nf7 (13...Ng6 14.Nd2 Qf6 15.f4-+) 14.Nd2 (better 14.Qe2!?-/+) 14...Bc5-+ 15.N2f3 (15.Bg2 Bd7 16.0-0 0-0-+) 15...0-0 16.Rd1 (16.Bg2 g6 17.Qh4 Qh4 18.Nh4 Bd7-+) 16...Qf6 (16...a6 17.a4-+) 17.Bg2 e5 18.Ne2 (18.0-0 g6 19.Qh4 Qh4 20.Nh4 ed4 21.cd4 Bb4 22.Bd5 Bh3 23.Ba8 Bf1 24.Kf1 Ra8-+) 18...e4 (better 18...g6 19.Qh4 g5-+) 19.Nfd4 (19.Qd5 ef3 20.Qf3 Qf3 21.Bf3-+) 19...Ne5 20.0-0 (20.f4 ef3 21.Bf3 Nf3 22.Nf3 Qf3 23.Qf3 Rf3 24.Rd5-+) 20...Bg4 (20...Bg4 21.Qg4 Ng4-+) 0–1. Schulz,Hans_Juergen (1845) – Gaede,Derek (2310), 4th HSK Easter Open, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Nd7 6.d4 cd4 7.Qd4 Nc5 (7...a6 8.Bd3=) 8.a4 (8.Be2 a6=) 8...Ne7 9.Ba3 Nf5 10.Qf4 Bb7 11.g4 (11.Bc5!? bc5 12.Bd3=) 11...Nh4=+ 12.Nd4 (12.Nbd2 Nf3 13.Nf3 Qc7=+) 12...Qc7 13.Qe3 g5 (13...Be7 14.f4=+) 14.a5 Rc8 (14...Bg7 15.a6 Bc8 16.Nc6=+) 15.Nd2 (15.Qg5 Ng6=) 15...Bg7 16.Qg5 (16.a6 Ba8 17.Qg5 Nf5 18.gf5 Qe5 19.Qe3 Qd4=+) 16...Qe5 (16...Nf5 17.N4f3 Ne4 18.Ne4 de4 19.Bb2 Qc2 20.Qd2-+ (20.gf5?? Qb2 21.Rd1 ef3-+)) 17.Qe5= Be5 18.Bb2 0-0 19.Ra2 (19.a6 Ba8=) 19...Bd4 (19...Bf4 20.a6 Ba8 21.Ra3=+) 20.Bd4 e5 21.Bc5 Rc5 22.Rg1 d4 23.ab6 ab6 24.Bd3 (24.Rg3 Bd5 25.Nb3 Rc3-/+) 24...e4! 25.Be2 (25.Ne4 Nf3 Double attack; 25.Be4 Re5 Double attack (25...Rb5 Deflection; 25...Re5 Decoy)) 25...Bd5 26.Ra4 (26.Rb2!?-/+) 26...d3-+ (26...Rc2?! 27.Bd1 (worse 27.Rd4 Nf3 28.Nf3 ef3-+) 27...Rc5 28.Rd4 Rb5 29.Rg3=+) 27.cd3 (27.c4 de2 28.Ke2-+) 27...ed3 28.Bd1 (28.Kd1 Rfc8 29.Bd3 Rc1 30.Ke2 Rg1 31.Be4-+) 28...Re8 (28...Re8 29.Ne4 Be4-+) 0–1. Piepho,Nils – Maiwald,Jens Uwe (2375), Hamburg op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.b5 Ne7 6.c3 Ng6 7.d4 Be7 8.Bd3 0-0 9.h4 c4 (9...Nh4 10.Nh4 g6 11.Qg4+-) 10.Bc2 Re8 (10...Bd7 11.Ng5 h6 12.Nf7 Rf7 13.Bg6+-) 11.Ng5+= Nf8 12.Qh5 g6 13.Qh6 f5 14.h5 Bg5 15.Bg5 (worse 15.Qg5 Qg5 16.Bg5 a6 17.ba6 Ra6+-) 15...Qd7 16.hg6 (16.Ba4 Qg7 17.hg6 Qh6 18.Bh6 Ng6+-) 16...Ng6 17.Bf6 Qf7 18.Nd2 Nd7 19.Nf3 (19.Bg5 a6+-) 19...Nf6 20.ef6 Qf6?? (better 20...e5 21.Kd1 ed4 22.Nd4 a6 23.ba6 Ra6 24.Bf5 b5 25.Bg6 Qg6 26.Qg6 hg6 27.f7 Kf7 28.Nb5 Re7+-) 21.Qh7+- Kf8 22.Rh6 Re7 23.Qg6 (23.Qg6 Qg6 24.Rg6+-; worse 23.Rg6 Rh7 24.Rf6 Ke7 25.Re6 Be6=+) 1–0. Mueller,HD (2085) – Kuenitz,K (1640), 11th Gibraltar Masters, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 a5 6.b5 c4 7.a4 Nd7 8.d4 cd3 9.Bd3 Qc7 10.0-0 (10.Qe2!?=) 10...Ne5=+ 11.Ne5 Qe5 12.Re1 Qc7 13.Qf3 Nf6 14.Bh6 (14.Bg5 Be7=+) 14...Bb7-/+ 15.Nd2 (15.Bf4 Bd6 16.Bd6 Qd6-/+) 15...Rc8 (15...gh6? 16.Qf6 Rg8 17.Re6 fe6 18.Qe6 Kd8 19.Qg8+-; 15...Qc3?! 16.Rec1 Qd4 17.Qe3 Qe3 18.Be3-/+) 16.Rac1 (16.Bf4!? Qc3 17.Ra2-/+) 16...d4-+ (16...gh6? 17.Qf6 Rg8 18.Re6 Be7 19.Re2+-) 17.Ne4 Ne4 (17...gh6 18.Qf6 Rg8 19.Qd4+=) 18.Be4 Be4 (18...gh6? 19.Bb7 d3 20.Red1+-) 19.Re4 dc3 (better 19...gh6!? 20.Qf6 Rg8 21.Re6 fe6 22.Qe6 Kd8 23.Qg8 Qf4-+) 20.Bf4-/+ Bd6 21.Bd6 Qd6 22.Rc3 0-0 23.Rec4 Rc4 24.Rc4 Rd8 25.g3 g6 26.Qc3 Qd1 27.Kg2 Qd5 28.Kg1 h5 29.h4 e5 30.Rc6 (30.Rc7 Qe6 31.Kg2 Rd6-/+) 30...Qe4 31.Rc8 (31.Rb6?? Rd1 32.Qe1 Qe1 33.Kg2 Qh1) 31...Rc8 32.Qc8 Kg7 33.Qc6 Qd4 34.Kg2 Kf8 (34...Qa4 35.Qb6 Qe4 36.Kf1 Qc4 37.Ke1 Qb4 38.Kf1-/+) 35.Kf3 Ke7 36.Qc7 Ke6 37.Kg2 Qd6 (37...Qa4 38.Qb6 Kd5 39.Qc6 Kd4 40.Qd6 Kc3 41.b6 (41.Qe5?! Kc4=) 41...Qe4 42.Kh2+-) 38.Qa7 Qc5 39.Kg1 Qd6 40.Qb7 (40.Kg2 e4 41.Qb7-/+) 40...Qd1 41.Kh2 Qd4 (41...Qa4?! 42.Qb6 Kf5 43.Qc6=) 42.Kg1 Qc5 (42...Qa4?! 43.Qb6 Kf5 44.Qc6=) 43.Qa7 Qd6 44.Qb7 (44.Kg2 e4 45.Qb7-/+) 44...f5-/+ 45.Kh2 e4 46.Kg2 Ke5 47.Qg7 Kd5 48.Qb7 (48.Qc3 Qe6-/+) 48...Kd4 (48...Kc5 49.Qa8-+) 49.Qc6-/+ Ke5 50.Qc3 Kd5 51.Qc8 (51.Qb3 Kd4-/+) 51...Qe6 52.Qc7 e3 (52...Qf6 53.Qc8-/+) 53.fe3= Qd6 54.Qd6 Kd6 55.Kf3 Ke5 56.Kf2 Kd5 57.Kf3 Ke5 ½–½. Gajewski,Grzegorz (2340) – Gdanski,Jacek (2540), 58th ch–Poland, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 a5 6.b5 c4 7.d4 cd3 (7...a4 8.Ba3=) 8.Bd3+= Nd7 9.0-0 Ne7 10.Bg5 (10.Ba3 Bb7+=) 10...Qc7= 11.Re1 Ng6 Can e5 get defended? 12.Qd2 (better 12.Bg6!? hg6 13.Bc1=) 12...Nde5-/+ 13.Ne5 Ne5 14.Re5 (better 14.Bf4!? Bd6 15.Qe2-/+) 14...Qe5-+ 15.Bf4 Qh5 16.Be2 Qg6 17.Bd3 f5 18.a4 (18.Be3 e5-+) 18...Bc5 (18...Bb7 19.Qe1-+) 19.Na3 0-0 (19...Bb7 20.Nc2-+) 20.Nc2 Re8 21.Re1 Bd7 (21...Bb7 22.Nd4-+) 22.Nd4 Qf6 23.Be5 Qe7 24.Qf4 g5 (24...Rac8!?-+) 25.Qg3 h6 26.h4 (26.Nb3 Rac8-/+) 26...g4 (26...Rac8 27.Nb3 Ba3 28.Re2-+) 27.Bf4 (27.Nb3 Ba3-/+) 27...Qg7 (27...Bd4 28.cd4 Qb4 29.Qe3-/+) 28.Qe3 (28.Be5 Qg6-/+) 28...Kh7 (28...Qf6 29.Qg3 Bd4 30.cd4 Qd4 31.Be5 Qa4 32.Qe3-+) 29.h5 (better 29.Be5 Qg6 30.Qg3-+) 29...Be7?? (29...Rac8!? 30.Be5 Qf7 31.Qg3 Qh5 32.Nb3-+) 30.Bc7? (30.Ne6 Qf7 A) worse 31.Qb6 Ba3 (31...Qh5?? 32.Qc7 Bc8 33.Nd8+-) 32.Qb7 Be6 33.Bf5 Kg7 34.Bh6 Kh8 (34...Kh6?? 35.Re6 Qe6 36.Be6 Re6 37.Qa8+-) 35.Qf7 Bf7=+; B) 31.Qe5+/-) 30...Bd8-+ 31.Be5 (31.Nf5 ef5 32.Qe8 Be8 33.Bf5 Kg8 34.Re8 Kf7-+) 31...Bf6 (31...Qg5 32.Qg5 Bg5 33.Nc6-+) 32.Bc7-/+ Bd8 33.Be5 Bf6 (better 33...Qg5-+) 34.Bc7= Bd8 ½-½. Grabinsky,V (2215) - Romanchuk,V (2255), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

5.c3 a5 6.b5 Nd7 7.d4 f6 8.Bd3 fe5 9.de5 Be7 10.0-0 Bb7 11.a4 (11.Re1 Nf8+-) 11...Qc7 12.Re1 0-0-0 13.Ng5 Bg5 14.Bg5 Re8 (14...Rf8 15.Qg4 c4 16.Bc2+=) 15.Bf4 Nh6 (15...c4 16.Bc2+=) 16.h3 (16.Qh5 c4 17.Bc2 Nc5+=) 16...Nf7 Now all is on e5 17.Bg3 Reg8 (17...Nfe5? 18.Qe2 Nd3 19.Bc7 Ne1 20.Bg3 (20.Qe1?! Kc7 21.Nd2 e5=) 20...Ng2 21.Kg2+-) 18.c4 Nd8? (better 18...d4!?+=) 19.cd5+- Bd5 20.Nc3 Qb7 (20...Bb7 21.Rc1+-) 21.Nd5 Qd5 22.Qc2 Qd4?? (22...Qb7+-) 23.Bc4 (worse 23.Bh7 Rh7 24.Qh7 Rf8+-) 1–0. Holzhaeuer,M (2270) – Steinmueller,A (2065), 9th LGA Premium Cup, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 cb4 6.cb4 Bb4 7.Qa4 Nc6 8.Bb5 Nge7 9.Qb4 0-0 (9...Ba6 10.Ba3 Bb5 11.Qb5+-) 10.Qg4 d4 (10...Qc7 11.Bb2+-) 11.Ba3 Qc7 (11...Bb7 12.Bc6 Bc6 13.Nd4+-) 12.0-0 Rd8 13.Be7 (better 13.Rc1 Bb7 14.Be7 Qe7 15.Bc6+- (15.Rc6 Bc6 16.Bc6 Rac8+-)) 13...Ne7 14.Re1 (14.Nd4 Qe5 15.Nc6 Nc6 16.Bc6 Ba6+-) 14...Qc2 (14...Bb7+-) 15.Nd4?? (15.Qh4 Bd7 16.Na3 Qc5 17.Qd4 Qa3 18.Bd7 Rac8+-) 15...Qb2?? (better 15...Qc5 16.Qf3 Qd4 17.Qa8 Qa1 18.Qa7 Nd5+-) 16.Nb3 (16.Nc3 Nf5 17.Rab1 Qa3 18.Nf5 ef5+-) 16...a6 17.Bf1 Nd5 (17...Bb7 18.d4 Qc2 19.Rd1+-) 18.d4 Nc3 (18...Qc2 19.Rc1 Qg6 20.Qg6 hg6 21.Nc3+-) 19.Nc3 (better 19.Qf3 Rb8 20.Nc3 Bb7+-) 19...Qc3 20.Rac1 (20.Rec1 Qb2 21.Bd3 Bd7+-) 20...Qb4 21.Bd3 Bd7 (21...Bb7 22.Re3 Qe7 23.Rh3+-) 22.Qe4 g6 23.Rc7 Ba4 24.Rc4 (24.Ra1!? Bb3 25.Qf4 Rf8 26.ab3 Qb3+-) 24...Qa3 25.Nc1 Rac8 26.Qe3 b5 27.Rc8 Rc8 28.Qd2 (28.Be4 Qe3 29.fe3 Rc3+-) 28...Rc3 (28...Qc3 29.Qc3 Rc3 30.Be4+-) 29.Be4 b4 30.Ne2 Rc8 (30...Rc4 31.Rb1 a5 32.Kh1+-) 31.Qd3 (31.d5 b3 32.ab3 ed5 33.Bg6 hg6 34.ba4 Qa4 35.Qd5 Qb4+-) 31...Bb5 (31...Qd3 32.Bd3 a5 33.Rc1 Rc1 34.Nc1+-) 32.Qa3 ba3 1–0. Rodicio Gonzalez,Olalla – Rodriguez Calvo,Miriam, Galicia–ch, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 cb4 6.cb4 Nc6 7.a3 Bd7 (7...d4 8.Qc2 Qd5 9.Bc4+=) 8.d4 Rb8 (8...b5 9.Bb5 Ne5 10.de5 Bb5 11.Nc3+=) 9.Bd3 Nge7 (9...b5 10.0-0+=) 10.Nc3+- Ng6 11.h4 (11.0-0 b5+-) 11...Be7 (11...Rc8 12.h5 Nge7 13.Bd2+-) 12.g3 (12.h5 Nf8+-) 12...0-0 (better 12...Rc8!? 13.h5 Nf8+-) 13.h5+- Nh8 14.Qc2 g6 15.Bh6 (15.Qd2 Qc7+-) 15...Re8+- 16.Qd2 f5 (16...b5 17.Rb1+- (17.Nb5?! Nb4 18.ab4 Bb5+-)) 17.ef6! Bf6 18.hg6 hg6 19.0-0-0 (19.Be2 e5 20.de5 Ne5 21.Ne5 Be5+-) 19...Rc8 (19...Nd4 20.Nd4 Bd4 21.Bc4=+) 20.Kb1 (20.Ba6 Rc7 21.Bf4 e5 22.de5 Ne5 23.Qd5 Nhf7+=) 20...Qe7 (20...Nd4 21.Nd4 Bd4 22.Nb5+=) 21.Bg5 (better 21.Ba6 Rcd8 22.Rde1+-) 21...Nd4= 22.Bf6 Qf6 23.Nd4 Qd4 24.Ne2 Qg7 (24...Qf6!? 25.Rh6 Qf2+=) 25.Rh6+- Kf8 26.Rdh1 Nf7 27.Rg6 Qe5 28.Nf4 (28.Rh7 a5+-) 28...Qc3 29.Qc3 Rc3 30.Kb2 (30.Rh7 Ne5 31.Rf6 Kg8 32.Nh5 Rc1 33.Ka2 Rc2 34.Bc2 Ng4 35.Rg7 Kh8 36.Rg4 e5 37.Rh6) 30...d4 (30...Rec8 31.Bb1 Rf3 32.Rf6 (worse 32.Ne6 Be6 33.Re6 Rf2 34.Kb3 Rf3 35.Kb2 Rg3-/+) 32...Rf2 33.Ka1 Rf4 34.gf4+=) 31.Rh7 (better 31.Rf6 Ke7 32.Rf7 Kf7 33.Rh7 Kf6 34.Rd7+-) 31...Ne5+= 32.Rf6 (32.Be4 a6+=) 32...Kg8= 33.Be4 Nc4 34.Ka2 (34.Kb1!? Rb3 35.Kc1=) 34...Ra3=+ 35.Kb1 Nd2 (better 35...Rb3 36.Kc1 Ba4=) 36.Kb2 e5 37.Ka3 Ne4 38.Rff7 ef4 39.Rhg7 (better 39.Rfg7!? Kf8 40.Rd7+-) 39...Kh8 40.Rd7 fg3 (40...a6 41.Rg6 f3 42.Rd4+-) 41.Rh7 Kg8 42.Rhg7 (42.Rdg7!? Kf8 43.Ra7 Kg8 44.Rhg7 Kh8 45.fg3 Nd6+-) 42...Kh8+- 43.fg3 d3? (43...Nd6!?+-) 44.Rh7+- Kg8 45.Rdg7 (45.Ra7?! d2 46.Rag7 Kf8+-) 45...Kf8 46.Ra7 d2 (46...Kg8 47.Rag7 Kf8+-) 47.Rh8 1–0. Fiori,Hector – Lopez Rebert,Pablo, 7th Villa Martelli Argentina, Men Champ, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 cb4 6.cb4 d4 7.Bb2 Bb7 8.Bd4 (8.Bb5 Nd7+=) 8...Ne7 (8...Bb4 9.Qa4 Qd7 10.Qb4 Bf3 11.Qd6= (worse 11.gf3 Nc6 12.Bb5 Nb4 13.Bd7 Kd7-/+)) 9.a3 Nd5 (9...Nf5 10.Bc3+=) 10.Bb5 Nd7 11.0-0 Be7 12.Nc3 0-0 13.Nd5 Bd5 14.Rc1 (14.Qe2 Nc5 15.Be3 Nb3+=) 14...a5+= 15.ba5 (15.Rb1 ab4 16.ab4 Ra3+=) 15...Ba3= 16.Ra1 Ra5 17.Bd7 Qd7 18.Bb6 Raa8 19.Qe2 Rfc8 20.Ng5 (20.Qd3 Bb2 21.Ra8 Ra8=) 20...h6 21.Qe3 hg5 22.Ra3 Ra3 23.Qa3 Qb7 24.Qa7 Bg2 25.Qb7 Bb7 26.h3 Rc4 27.d3 (27.Be3 f6=) 27...Rh4=+ 28.Kh2 g4 29.Kg3 Rh3 30.Kg4 Rd3 31.Be3 Kh7 32.Kg5 Rd5 33.Kf4 Rb5 34.Rc1 Rb4 (34...f6 35.Rc5 Rb4 36.Kg3-/+) 35.Kg3 (35.Kg5 Bf3 36.Rg1 Re4=+) 35...Kg6 36.Rd1 Bd5 37.Rd4 Rb1 38.Rg4 Kh7 39.Rh4 Kg8 40.Rg4 Rb3 41.Kh4 Rb1 42.Kg3 Rg1 ½–½. Duijn,Richard (2220) – Straat,Evert Jan (2210), Haarlem AKN op 8th, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 Bb7 6.a3 Nc6 7.d4 c4 8.a4 (8.Be2 Qd7+=) 8...Nge7 9.h4 Qc7 10.Na3 a6 11.h5 Nf5 (11...h6 12.Be2=) 12.Nc2 (12.g4 Nfe7+=) 12...Be7 (12...f6!?=) 13.g4+- Nh6 14.Bh3 (14.Bh6 gh6 15.Qd2 Bf8+-) 14...Ng8+= 15.Bf4 0-0-0 (15...h6 16.Bg2+=) 16.Na3 (16.b5 Nb8+-) 16...Nb4 (16...Nb8!?+=) 17.cb4+- Bb4 18.Kf1 Kb8 (18...Kd7 19.Nc2 Bc3 20.Rc1+-) 19.Nc2 a5 (19...Ba5 20.Bd2 c3 21.Be3+-) 20.Bg3 (20.Nb4 ab4 21.Ke1 b3+-) 20...Ne7 (20...Be7 21.Ke1+-) 21.Bh4 Rde8 (21...Rc8 22.Nb4 ab4 23.Rb1+-) 22.Na3 (22.Nb4!? ab4 23.h6 gh6+-) 22...Bc6 23.Nc2 Bd7?? (23...Bb7 24.Nb4 ab4+-) 24.Ng5+- Ref8 (24...f6 25.Nb4 ab4 26.ef6 gf6 27.Bg3+-) 25.Nb4 ab4 26.Ne4! Nc8 (26...de4 27.Qb1 Double attack (27.Be7 Discovered attack; 27.Qb1 Decoy)) 27.Nd6! Nd6 28.ed6 Qa7 29.Be7 Rc8 30.Kg2 Qa5 31.Qf3 b5? (better 31...f5!?+-) 32.Rhb1 (32.ab5 Qb5 33.Qf7 b3+-) 32...f6 33.h6! gh6 34.Qf6 1–0. Helin,Mikael (1880) – Fridthjofsdottir,S (1730), Reykjavik Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 Bb7 6.a3 Qd7 7.d4 Ne7 8.Bd3 Ba6 9.Bc2 Nf5 (9...Nbc6 10.Ba4 b5 11.Bc2+=) 10.Nbd2 (10.dc5 bc5 11.Bf5 ef5+=) 10...Be7 11.Nf1 (11.dc5 bc5 12.Nb3 cb4 13.ab4 Qc6+=) 11...0-0= 12.g4 Nh4 13.Nh4 Bh4 14.g5 Qb5 (14...cd4 15.Qd4 Qb5 16.Bh7 Kh8=) 15.Ng3 (15.bc5!? bc5 16.Rb1+=) 15...Qc4= 16.Ne2 (16.Bd2 cd4 17.Bb3 Qb5=) 16...cd4 17.cd4 f6 (better 17...Rc8!? 18.Ba4 Nc6=+) 18.gf6+- gf6 (18...Rc8 19.Ba4 Nc6 20.b5 Bb5 21.Bb5 Qb5 22.Rg1+-) 19.Rg1 Kh8 20.Rg4 Bg5 21.f4 (21.Rg5?! fg5 22.Bg5 Nc6=) 21...Bh6 22.Rh4 Kg7 23.Ng3 (23.Rh3 f5 24.Bd3+-) 23...fe5?? (23...Qc3 24.Bd2 Qd4+-) 24.Rh6!+- (24.de5 Rc8 25.Rh6 Qc2 26.Qc2 Rc2 27.Re6 Rh2 28.Nf5 Kf7 29.Rf6 Kg8 30.Ne7 Kh8+-) 24...Kh6 (24...Kh6 25.Qh5) 25.Qh5 Kg7 26.Qh7 Kf6 27.Nh5 (27.fe5) 1–0. Feryn,B (2140) – Jactel,N (1975), 33rd Cappelle Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 d4 6.bc5 bc5 7.cd4 cd4 8.Qa4 Bd7 9.Qd4 Nc6 10.Qe3 Nh6 11.Bd3 Nb4 12.Be4 Rc8 13.0-0 (13.Ba3 Nf5 14.Qb3 Bc6 15.Bc6 Nc6+=) 13...Bb5= 14.Re1 Bd3 15.Na3 (15.Ba3 Bc5 16.Qf4=+) 15...Bc5-/+ 16.Qf4 0-0 17.Qg5 Qg5 18.Ng5 Ng4 19.Nh3 Bd4 (19...Ne5?! 20.Bb2 Be4 21.Re4-/+) 20.Bd3 (20.Rb1 Bb1 21.Nb1-+) 20…Nd3 (20...Nd3 21.Rb1 Ne1-+ (21...Rc1?! 22.Rec1 Nc1 23.Rc1-/+; 21...Nc1?! 22.Rec1 Rc1 23.Rc1-/+); 20...Ba1?! 21.Bb1 Ne5 22.Nf4-+) 0-1. Horak,Martin (2335) - Goryachkina,A (2580), Titled Tuesday 8th Sept, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

5.c3 Be7 6.a3 a5 7.b5 Nd7 8.a4 (8.d4 c4+=) 8...f6 9.ef6 (9.d4 Bb7+=) 9...Bf6 10.d4 Nh6 (10...Qc7 11.Be3=) 11.Bd3 (11.Bh6!? gh6 12.Ra2+=) 11...Nf7= 12.Bf4 c4 13.Bc2 0-0 14.0-0 Re8 15.Ne5 Be5 16.Be5 (16.de5 g5 17.Bg3 Nde5+=) 16...Nfe5 17.de5 Nf8 (17...Bb7 18.Qg4=) 18.Nd2 Bb7 19.Nf3 Rc8 20.Nd4 Qe7 21.f4 g6 22.Qg4 Qg7 23.Rae1 Rc7 24.Re3 Bc8 25.Rg3 Rf7 26.Rf2 Kh8 27.h4 Qh6 28.Rh3 Qh5 (28...Qg7 29.h5 gh5 30.Qh5+-) 29.Qh5+- gh5 30.Bd1 Ng6 31.Bh5 Ref8 32.Bg6 hg6 33.Rhf3 Rh7 34.g3 Re8 35.Rh2 Kg7 36.Kg2 Reh8 37.Rf1 Kf7 38.Kf3 Bd7 39.Ke3 Ke7 40.Nf3 Kd8 41.Ng5 Re7 (41...Rg7 42.Rfh1+-) 42.Rfh1 Be8 43.Nh3 (43.Rd1 Kc7+-) 43...Rc7 44.Nf2 Rc5 45.Rb1 Rc7 46.Ng4 Rc8 47.Nf6 Bf7 48.Kd4 Ke7 49.Rbh1 Rh6 50.g4 White prepares the advance h5 50...Rf8 51.Rg1 Rfh8 52.h5! gh5 53.gh5 Kd8 54.Rg3 Ke7 55.Rg5 Kd8 56.f5 ef5 (56...Ke7 57.fe6 Ke6 58.Rf2+- (58.Nd5 Rd8-/+)) 57.Rf5 Be6 58.Rg5 Bf7 59.Rg7 Bh5 (59...Ke7 60.Nd5 Kf8 61.Rg5+-) 60.Ra7 (worse 60.Nh5 Rh5 61.Rh5 Rh5 62.Kd5 Rh1+-; 60.Nd5?! Bf3 61.Rh6 Rh6 62.Rg8 Kd7+-) 1–0. Wirig,A (2420) – Archambaud,T (2120), 3rd Rohde Open, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Nc3 cb4 6.Nb5 Nc6 7.Bb2 Nh6 8.a3 ba3 9.Ba3 Ba3 10.Ra3 0-0 11.d4 a5 12.h3 Qe7 13.c3 Ba6 14.Ra2 Nf5 15.h4 f6 16.g4 Nh6 17.Nh2 fe5 18.g5 Nf5 19.Ng4 ed4 20.cd4 Qb4 21.Rd2 Bb5 22.Bb5 Qb5 23.Nf6 gf6 24.Qg4 White resigned 0–1. arvek (1840) – marekt (2480), ChessWorld.net, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.Nc3 cb4)

5.bc5 Bc5 6.d4 Bb4 7.c3 Ba5+=.

5.bc5 Bc5 6.d4 Be7 7.Bd3 Nd7 8.0-0 f6 9.c4 f5 10.cd5 ed5 11.Nc3 Nf8 12.h4 Bh4 13.Nh4 Qh4 14.Nb5 Kf7 15.Nd6 Kg6 16.Qf3 Ne7 17.g4 h6 18.Kg2 h5 19.gf5 Kh7 20.Rh1 Black resigned 1–0. marekt (2485) – arvek (1825), ChessWorld.net, 2012.

5.d4 cd4 6.a3 a5 7.b5 Qc7 8.Bb2 Nd7 9.Bd4 Ne7 (9...Bc5 10.Nc3=+) 10.Bd3 Ng6 Will e5 fall? 11.Qe2 Nf4 12.Qd2 Nd3 13.cd3 Bc5 14.Bb2 d4 15.Qg5 0-0 16.Nbd2 (worse 16.Bd4 Bd4 17.Nd4 Ne5-/+) 16...a4 17.Ne4 (17.Rc1 Qd8 18.Qf4 f6 19.ef6 Nf6= (worse 19...Rf6 20.Qe4 Rb8 21.Nd4+-)) 17...h6 (17...Ra5 A) worse 18.Nc5 bc5 (18...Nc5?! 19.0-0=+) 19.Qg3 Rb5-+; B) 18.Bd4 Bd4 19.Nd4 Ne5 20.0-0=+) 18.Qg3+= Bb7 19.Rc1 (worse 19.Bd4 Bd4 20.Nd4 Qe5-/+; 19.Nd4?! Be4 (worse 19...Ne5 20.Nc6 Nd3 21.Qd3 Bc6 22.bc6+-) 20.de4 Qe5= (worse 20...Ne5 21.Nc6 f6 22.0-0+-); worse 19.Nc5 bc5 (19...Qc5?! 20.Bd4 Qb5 21.Ke2=+) 20.0-0 Bf3 21.Qf3 Ra5-/+) 19...Be4 20.de4 Qb7 21.0-0 (worse 21.Nd4 Qe4 22.Ne2 Ra5-/+) 21...Ra5 22.Rc4 d4 draws heavy fire (22.Nd4 Bd4 23.Bd4 Qe4=+) 22...Rb5 (22...Qe4 23.Bd4 Ba3 24.Nd2=) 23.Bc1 (23.Bd4 Qe4 24.Ra4 Rd8=+) 23...Qe4 24.Ra4 Kh8 25.Ra7 Nb8 (25...Qd5 26.Rd1-/+) 26.Re1=+ Qg6 27.Qh4 Rb1 (27...Kg8-/+) 28.Nd2? (better 28.Nd4!? b5 29.Rc7 Ba3 30.Rd1=+) 28...Nc6-/+ 29.Nb1 Na7 30.Nd2 Nc6 31.h3 (31.Qf4 Rd8-+) 31...Ra8 (31...Rd8 32.Nf3-+) 32.Qf4 Qf5 (32...Ba3 33.Qf3 Qc2 34.Ba3 Qd2 35.Rc1-+) 33.Qg3 (33.Qf5!? ef5 34.Bb2-+) 33...d3 34.Ne4 Rd8 35.Nc5 bc5 36.Bd2 c4 37.Rc1? (37.Qe3 Nd4 38.f4-+) 37...Nd4 (37...Ne5?! 38.f4 Nc6 39.Rc4-+) 38.Qh4 (38.Kh1 Ne2 39.Qe3 Nc1 40.Bc1 c3-+) 38...Ne2 39.Kf1 0–1. Nadj Hedjesi,B (2400) – Munkhgal,G (2395), Kecskemet GM Nov, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.d4 cd4 6.a3 Ba6 7.b5 Bb7 8.Bd3 (8.Qd4 Nd7+=) 8...Bc5 9.0-0 Nd7 10.Re1 a6 11.Qe2 Qc8 12.Nbd2 ab5 13.Nb3 b4 14.Nbd4 (14.Nfd4 Bd4 (worse 14...ba3 15.Nc5 bc5 16.Nb5+=) 15.Nd4 Qc3=+) 14...Ba6 (14...ba3 15.Nb5 Bc6 16.Na3=+) 15.Ba6 (15.ab4 Bd3 16.Ra8 Qa8 17.cd3 Bb4=+) 15...Qa6 16.ab4? (better 16.Nb5 Qc8 17.Bb2=) 16...Qe2?? (better 16...Qa1 17.bc5 bc5-+) 17.Ra8+- (17.Re2?? Ra1 18.Nb3 Rc1 19.Nc1 Bb4-+) 17...Nb8 18.Rb8 Kd7 19.Re2 (19.Re2 Kc7 20.Re8+-) 1–0. Chanoine,Guillaume – Le Gall,Michel, Open Victor Syre Mem, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.d4 cd4 6.Qd4 Qc7 7.Na3 (7.Qb2 Nd7=) 7...a6 8.Bd2 Ne7 9.Qb2 Nd7 10.c4 (10.Rd1 Ng6 11.Bc3 Bb7=) 10...d4 (10...Nc6 11.Rc1 Nde5 12.Ne5 Qe5 13.Qe5 Ne5 14.c5-/+) 11.Be2 (11.Qd4 Bb7=+) 11...Bb7 12.Nd4 Qe5 13.0-0 Nf5 14.Bc3 (14.Nac2 Rd8=) 14...Nd4 (14...Bb4 15.Qb4 Nd4 16.Bd4 A) 16...Qe2 A1) 17.Bg7?? Rg8 18.f3 Rg7-+; A2) 17.Bb6 Bg2 18.Kg2 Qg4 19.Kh1 Rb8=+ (19...Nb6? 20.f3 Qd4 21.Rad1+-); A3) 17.f3 Rd8 18.Rad1+- (worse 18.Bg7 Rg8 19.Rf2 Qd3-/+; 18.Bb6?! Nb6 19.Qb6 0-0=); B) 16...Qd4-/+) 15.Bd4= Qg5 16.g3 h5 17.f4 Qf5 (17...Qg6 18.Rad1=) 18.Bf3 (18.Rad1 Qh3 19.Rf2 Rd8+=) 18...Bf3= 19.Rf3 h4 20.Bg7 Rh7 (20...Bg7 21.Qg7 0-0-0 22.g4=) 21.Bf8+= Kf8 (21...Nf8 22.Qg2=) 22.Rd1 Qg4 (22...Ke7 23.Qd2 Rd8 24.Rd3+-) 23.Rdd3 (23.Rd7 Qf3 24.Qd4 Rh6-/+ (24...Qa3?! 25.Rd8 Rd8 26.Qd8 Kg7 27.Qg5 Kh8 28.Qd8 Kg7 29.Qg5 Kh8 30.Qd8 Kg7=)) 23...e5 (23...Rd8!?+-) 24.fe5+- Re8 25.Rf4 Qh3 26.Qg2 Qg2 27.Kg2 Ne5 28.Rd6 h3 29.Kf2 (29.Kg1 Rg7+-) 29...Ke7 (29...Rg7 30.Rd2+-) 30.Rd5 Ke6 (30...Kf8 31.Nc2+-) 31.Re4 (31.Rfd4 Kf6+-) 31...f6+- 32.Nc2 Rc8 (32...Rc7 33.Ne3+-) 33.Ne3 (33.Nd4 Kf7 34.Nf5 Rc7 35.Nd6 Ke6+-) 33...Kf7 (33...Rf7!?+-) 34.Rd6+- Rc6 35.Rc6 Nc6 36.a3 Rh5 (36...Rh8 37.Nd5+-) 37.Nd5 b5 38.Nf4 (38.Rf4 Rh6 39.c5 Ne5+-) 38...Rf5 39.cb5 (39.c5 a5+-) 39...ab5 40.Ke3 (40.g4 Re5 41.Re5 Ne5+-) 40...Ne5+- 41.Nh3 Rf3 42.Kd4 Ra3 43.Kc5 Nf3 44.Kb5 Nh2 45.Nf4 Rg3 46.Nd5 f5 47.Re7 Kg6 (47...Kf8 48.Kc5 Ng4 49.Rh7+-) 48.Kc5 Ng4 49.b5 Nf6?? (better 49...Nf2+-) 50.Re6+- 1–0. Busch,Kurt – Kolb,Markus, Verbandsliga Sued Baden, 1992. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 b6)

5.d4 cd4 6.Nd4 Qc7 7.Qh5 (7.a3 Qe5 8.Be3 a5=+) 7...g6 8.Bb5 Bd7 9.Bd7? (better 9.Qe2!? Bb4 10.Bd2 Bd2 11.Kd2-/+) 9...Nd7-+ 10.Nb5 (10.Qe2 Bb4 11.Kf1 Qe5 12.Qe5 Ne5-+) 10...Qc2 (10...gh5?? 11.Nc7 Kd8 12.Na8 Bb4 13.Ke2+-; 10...Qe5 11.Qe5 Bb4 12.Ke2 Ne5 13.Nc7 Kd7 14.Na8+=; 10...Bb4?! 11.c3 Qc3 12.N1c3 (12.N5c3? gh5 13.a3 Bc3 14.Nc3 Ne5-+) 12...gh5 13.Bd2-/+) 11.Qd1 Qc4 12.Nd6 Bd6 13.ed6 Qb4 14.Nd2 Ngf6 15.0-0 0-0 16.Re1 Rfc8 17.Qf3 (17.a3 Qd6 18.Nf3 Rc4-+) 17...Rc3 (17...Rc1!? 18.Rec1 Qd2 19.Rc7-+) 18.Qe2 (18.a3 Qc5 19.Nb3 Qc8-+) 18...Rac8 19.Nb3 Rc2 20.Qa6 (20.Bd2 Qd6 21.Nd4-+) 20...Qe1 (20...Qe1 21.Qf1 Qf1 22.Kf1 e5-+) 0–1. Kindt,M – Wuts,Frank, Sas van Gent, 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.d4 Qd7 6.bc5+= bc5 7.Ba3 Ba6 8.Ba6 Na6 9.Qe2 (9.Nbd2 Rc8=) 9...Qa4 10.0-0 Be7 11.dc5 Rc8 (11...Nc5 12.Rc1=) 12.Nd4 (12.Rc1 Bc5 13.Bc5 Rc5=) 12...Nc5 13.Nb5 (13.Qg4 Bf8=) 13...a6 14.N1c3 (14.N5c3 Qc6=+) 14...Qa5 15.Qg4 ab5 16.Bb4 (better 16.Qg7!? Qc3 17.Bc5 Bc5 18.Qh8 Bf2 19.Kh1-/+) 16...Nh6-/+ 17.Qg7 (17.Ba5?? Ng4 18.Nb5 Ne4-+) 17...Qb4 18.Qh8 Kd7 19.Qh7 Qc3 20.Qh6 Ne4 (20...Qe5!? 21.Qe3 Qe3 22.fe3-+) 21.Qf4 (21.Qg7 Qc2 22.h3 Ke8 23.Qg8 Bf8-+) 21...Ke8 22.h4? (better 22.a4!?-/+) 22...Rc4-+ (22...Qc2? 23.Rac1+-) 23.Qh6 (23.Qg4 Bc5 24.Rab1 Nf2 25.Qg8 Ke7 26.Qg5 Kd7 27.Rb3 Qc2 28.Kh2-+) 23...Qe5 24.Rfe1 (24.c3-+) 24...Bc5 25.Rf1 (25.Qg5 Qh8 26.Re4 Qa1 27.Kh2 Re4 28.Qg8 Kd7 29.Qf7 Be7 30.g3-+) 25...Nf2 26.Rf2 Qa1 (26...Qa1 27.Kh2 Bf2 28.Qh8 Ke7 29.Qd4 Rd4 30.g4 Qg1 31.Kh3 Qg3) 0–1. Pomaro,S (1880) – Godlauskas,K (2260), Open Panevezys LTU, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.d4 Ne7 6.Ba3 (6.c3 Nf5+=) 6...Nec6 (6...cd4 7.b5=) 7.b5 Na5 (7...Nd4 8.Nd4 cd4 9.Bf8 Rf8 10.Qd4=) 8.Nbd2 (8.dc5 bc5 9.Bd3 a6=) 8...Nd7 (8...a6 9.dc5 bc5 10.Bb2=) 9.c4 (9.Bb2 a6=) 9...Bb7 (9...dc4 10.Nc4 Nc4 11.Bc4=) 10.Be2 (10.cd5 Bd5 11.Bd3 cd4 12.Bf8 Kf8=) 10...Rc8 (10...dc4 11.dc5 Bf3 12.Nf3 Bc5 13.Bc5 Nc5 14.0-0-/+) 11.Rc1 (11.cd5 Bd5 12.0-0 cd4=) 11...Be7 (11...cd4 12.Bf8 Nf8 13.0-0=+) 12.0-0 (12.cd5 Bd5 13.Qc2 0-0=) 12...0-0 (12...cd4 13.Be7 Qe7 14.cd5 Rc1 15.Qc1 Bd5 16.Qb2=) 13.Bb2 (13.cd5 Bd5 14.Qc2 f6=) 13...cd4 14.Bd4 (14.cd5 Rc1 15.Qc1 Bd5=) 14...Ba3 (14...dc4 15.Bc3=+) 15.Rc2= Qe7 (15...dc4 16.Bc3=) 16.cd5+= Bd5 17.Nb1 (17.Qb1!?+=) 17...Bc5= 18.Qc1 (18.Bd3 Rfd8=+) 18...Ba2=+ 19.Ra2 Bd4 20.Qf4 Bc5 21.Bd3 Rfd8 22.Nbd2 (22.Rd1 Nf8=+) 22...Nf8 23.Bb1 Rd5 (23...Bb4 24.Be4=+) 24.Ne4 (24.Be4!? Rd7 25.Rd1=+) 24...Ng6-/+ 25.Qg3 Nc4 (25...Bb4 26.Qh3 h6 27.Nd6 Bd6 28.ed6-/+) 26.Neg5 (26.Nc3 A) worse 26...Nce5 27.Nd5 ed5 28.Ne5 Qe5 29.Bg6 Qg3 30.Bf7 Kf7 31.hg3+- (31.Ra7?? Rc7 32.hg3 Ra7-+); B) 26...Nge5 27.Nd5 ed5 28.Bh7 Kf8 29.Bf5+-; C) 26...Rd7=+) 26...Nce5 27.Ne5 Re5 (27...Ne5?! 28.Bh7 Kf8 29.Be4 Qg5 30.Qg5 Nf3 31.Bf3 Rg5 32.Ra7=) 28.h4? (better 28.Nf7 Qf7 29.Bg6=+) 28...Bd6-+ 29.Qd3 (29.Bg6 hg6 30.Qb3 Rd5-+) 29...Rd5 30.Qe4 (30.Qe2 Nh4 31.Bh7 Kh8-+) 30...Bb8 (30...Rb5 31.Qe2 Re5 32.Qg4-+) 31.g3 (31.Qa4 Qd7 32.Be4 Rd4-+) 31...Re5 (31...Rb5 32.Qf3-+) 32.Qa8 (32.Qa4 Qd7-+) 32...Rec5 (32...Rb5 33.Qf3-+) 33.Qe4 (33.Bd3 Bg3! 34.Ra7 Ra8 35.Ra8 Nf8 36.fg3 f5-+) 33...Rc4 (33...Rb5!? 34.Qf3-+) 34.Qd3 (better 34.Qe2-+) 34...Qd6 (34...h6 35.Nf3-+) 35.Nh7 (35.Qd6 Bd6 36.Ra7 R4c7 37.Rc7 Rc7=+ (37...Bc7?! 38.Rc1=)) 35...Qd3 (35...Rd4!? 36.Qe2 Nh4 37.Ng5-+) 36.Bd3-/+ Kh7 37.h5 Rd4 (37...Rc3 38.hg6 Kh6 39.Rd1-+) 38.hg6-/+ fg6 (38...Kh6 39.Bc2 f5 40.Re1-/+) 39.Be2 (39.Rd1 Rcd8 40.Rad2 e5-/+) 39...Rc7 (39...e5 40.Kg2-/+) 40.Kg2 Kg8 (40...e5 41.Rd1-/+) 41.Rd1 Rd1 (41...e5 42.Kf3 Rc3 43.Kg2 Rd1 44.Bd1=+) 42.Bd1=+ Kf7 43.Rc2 Rd7 44.Be2 Bd6 45.Bc4 Bc5 46.Re2 Attacking the isolated pawn on e6 46...Re7 47.Re4 g5 48.Re2 Kf6 49.Kf3 e5 50.Bd5 Bd4 51.Be4 (51.Rc2 e4 52.Kg4 g6=+) 51...Rc7 52.Rc2 (52.Rd2 Rc4-/+) 52...g4! 53.Kg4 Rc2 54.Bc2 Bf2 55.Kf3 Be1 (55...Bg1 56.g4-/+) 56.g4 Ke6 57.Ke4 Kd6 58.Bd3 Bc3 (58...Bd2 59.Be2-/+) 59.Bf1 (59.g5 g6-/+) 59...Kc5 60.Bd3 Kb4 61.Kd5 Bd4 62.Be2 (62.g5 Kc3 63.Bf5 Kd2-/+) 62...Ka4 (62...Kc3 63.Ke4-/+) 63.Ke4 (63.g5 Kb3-/+) 63...a5 (63...Bb2 64.Kd5-/+) 64.ba6 b5 65.a7 (better 65.Kd5!?-/+) 65...Ba7-+ 66.Ke5 b4 67.Bc4 b3 68.Ke4 Ka3 (68...b2 69.Ba2-+) 69.Kd3 Bb8 70.Bd5 (70.g5 Kb2-+) 70...Be5 (70...g6 71.Bf7-+) 71.Be6 (71.g5 Kb2-+) 71...Bf6 (71...g6 72.Bf7 g5 73.Bd5-+) 72.Bd5 Be5 73.Be6 Bf6 74.Bd5 Be5?? (better 74...g5-+) 75.Be6= ½–½. Lanzani,Mario (2370) – Passerotti,Pierluigi (2335), Amantea, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Be2 Ba6 6.b5 (6.bc5 Be2 7.Qe2 Bc5+=) 6...Bb7= 7.d4 cd4 8.Nd4 (8.0-0 Nd7=) 8...Qc7 9.f4 Ne7 (9...Nd7 10.0-0=) 10.Ba3 (10.0-0 Nd7+=) 10...Ng6 11.Bf8 Rf8 12.0-0 Ne7 (12...Nd7 13.Qe1+=) 13.Bg4 (13.Rf3 Nd7 14.Rc3 Nc5+-) 13...Bc8 (13...Nd7 14.Rf3+-) 14.Rf3 (better 14.Qe2+-) 14...f5? (better 14...Nd7+-) 15.Rc3+- Qd8 16.Be2 (16.Bh5!? g6 17.Nd2 gh5 18.Qh5 Ng6+-) 16...Kf7 17.Nd2 Nd7 (better 17...Kg8+-) 18.N2f3 (better 18.N2b3!?+-) 18...Nc5+- 19.Ng5 Kg8 20.Rc5! bc5 21.Nde6 (worse 21.Nge6 Qb6 22.Nc6 Nc6 23.Nf8 Nd4 24.Nh7 Kh7-+) 21...Be6 22.Ne6 Qb6 23.Nf8 c4 24.Kh1 Kf8 25.a4 Rc8 (25...Qe3 26.g3+-) 26.Qg1 Rc5 (26...d4 27.a5 Qc5 28.Rd1+-) 27.Rb1 (27.g3 a6+-) 27...Qc7? (better 27...Rc8 28.c3 Qa5+-) 28.a5! Nc8 (28...Qa5 29.Qc5 Deflection) 29.Qd4 Ke7 (29...c3 30.Qb4+-) 30.Bf3 Ke6 31.c3 g6 (31...h6 32.Kg1+-) 32.g3 h6 33.Kg2 g5 34.Kf2 g4 35.Bg2 h5 36.Rb2 1–0. Farkas,Gabor (2325) – Banszegi,Attila (2080), 12th Pannonia Kupa Balatonalmadi, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Be2 cb4 6.a3 b3 7.cb3+= Ba6 8.Nc3 Be2 9.Ne2 Ne7 10.Ned4 (10.0-0 Nd7+=) 10...Nbc6 11.0-0 Rc8 12.Bb2 Nd4 13.Nd4 Nc6 (13...Ng6 14.d3=) 14.Nc6 Rc6 15.Qg4 h5 16.Qg3 h4 17.Qg4 h3 18.g3 g6 19.Rac1 Qd7 20.Rc6 Qc6 21.Rc1 Qd7 22.Qe2 Be7 23.d4 Kf8 24.a4 (24.Rc3 Kg7+=) 24...Kg7= 25.Qc2 Rb8 26.Qc6 (26.Qc7 Rb7 27.Qc3 a5=) 26...Qc6 27.Rc6 a5 28.Bc1 (28.Rc7!? Bd8 29.Rc1=+) 28...b5-/+ 29.ab5 Rb5 30.Rc3 a4! 31.ba4 Rb1 32.Kf1 Bb4 33.Rc2 Ba3 34.Ke2 Bc1 (34...Rc1 35.Rc1 Bc1 36.a5+-) 35.a5 Ra1 36.a6 Bg5 37.Rc6 Bd8 0–1. Tukhvatullin,T (2245) – Ponfilenok,V (2425), 6th ch–PriFO Men, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.Be2 Nc6 6.b5 Na5 7.d4 Qc7 8.c3 Bd7 9.a4 (9.0-0!?+=) 9...cd4=+ 10.cd4 (10.Qd4?? Nb3 11.Qd1 Na1-+) 10...Nb3 11.Qb3 Qc1 12.Bd1 Rc8 13.0-0 Nh6 14.Be2 Qc7 15.Nbd2 Be7 16.a5 ba5 17.Qa2 (better 17.Qa4!? g5 18.Nb3+=) 17...Bb4-/+ 18.Nb3 Qb6 19.Na5 Bc3 20.Qa3 (20.Rfc1 Ba1 21.Rc8 Bc8 22.Qa1 Bd7-+) 20...Ba1-+ 21.Ra1 Bb5 22.Rb1 (22.Bb5 Qb5 23.Nd2 Qe2-/+) 22...a6 (22...Be2?! 23.Rb6 ab6 24.Nb7+=) 23.h3 (23.g3 Nf5-+) 23...Qc7 (better 23...Nf5-+) 24.Kh2?? (24.Bb5 ab5 25.Qb4 Qb6-+) 24...Qe7 (better 24...Be2 25.Rb7 Qd8-+) 25.Bb5 ab5 26.Qd3 0-0 27.Rb5 Nf5 28.Qb3 (28.g4 Nh4 29.Nh4 Qh4-+) 28...Nh4 29.Ne1 (29.g3 Nf3 30.Qf3 Qa7-+) 29...Qg5 30.Qe3 (30.Qg3 Qg3 31.fg3 Nf5-+) 30…Qe3 (30...Qe3 31.fe3 Rc3-+) 0-1. Golubov,Saveliy (2465) - Bluebaum,M (2640), World Rapid, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.Be2)

5.Be2 Ne7 6.0-0 (6.bc5 bc5 7.0-0 Nbc6=) 6...Ng6 (6...cb4 7.a3 Nf5 8.d4=+) 7.bc5= bc5 8.c3 Be7 9.d4 0-0 10.Ba3 Qa5 11.Qc1 (11.Bd3 Ba6 12.Bc5 Bc5 13.dc5 Bd3 14.Qd3 Qc5=+) 11...Ba6=+ 12.Ba6 Na6 13.Nbd2 Rfc8 14.Nb3 Qa4 15.Rd1 Rc7 16.h4 cd4 17.Be7 Ne7 (worse 17...Re7 18.Rd4 Qe8 19.h5+=) 18.Rd4 Qc6 19.Rg4 (19.Qa3 Nf5 20.Ra4 Nc5 21.Nc5 Qc5 22.Qc5 Rc5=) 19...Nf5 (19...Qc3 20.Qa3 Qd3 21.Rd4-/+) 20.h5 (20.Qa3!?=+) 20...Qc3-/+ 21.Qa3 Qd3 22.Ra4 Nc5 23.Ne1? (23.Nc5 Qa3 Decoy) 23...Qc3-+ 24.Rc1 Na4 25.Rc3 Nc3 26.Qb4 (26.g4 Nh6 27.f3 Rb8-+) 26...Rac8 (26...Na2?! 27.Qa5 Rcc8 28.Qa2=) 27.g4 (27.a3 Ne4-+) 27...Rc4 (27...Na2?! 28.Qd2 Nh6 29.Qa2 Ng4 30.Nf3-/+) 28.Qb7 Rg4 29.Kf1 Rf8 30.Qa7 (30.Nd3 Ra4 31.Qc6 Rc4-+) 30...Ra4 31.Qc5 Na2 32.Nd3 Rc4 33.Qa5 Nc3 34.Nbc5 Ne4 35.Nd7 Re8 36.Qb5 Rd8 37.Nb6 (37.Qa5 Rcc8 38.N7c5 Nc5 39.Nc5 Ra8-+) 37...Rc3 (37...Nd2!? 38.Kg2 Rg4 39.Kh3-+) 38.Na4 Rb3! 39.Nb4 (39.Qb3 Nd2 Double attack (39...Nd2 Decoy)) 39...h6 (39...Nd2 40.Kg1 Nf3 41.Kg2 N5h4 42.Kh3 Nd4 43.Qd3 Rd3 44.Nd3-+) 40.Nb6 (40.Nc5 Rb1 41.Kg2 Nh4 42.Kh2 Nf3 43.Kg2-+) 40...Rb1 (better 40...Nd2 41.Kg1 Nf3 42.Kg2 N5h4 43.Kh3 Nd4 44.Qd3 Rd3 45.Nd3-+) 41.Kg2 Rb2 42.Qa5 (42.N6d5 Rf2 43.Kh3 Ng5 44.Kg4-+) 42...Rf2 43.Kh3 Ng5 44.Kg4 Ne3 (44...Rh2 45.N6d5 Rh4) 45.Kg3 Ne4 (45...Rg2 46.Kf4 d4 47.Nd3 Rg4) 46.Kh3 Rg2 47.Nd3 Ng5 48.Kh4 Nf5 (48...Rg4) 0–1. Murtazin,Bulat (1960) – Mokshanov,A (2370), Lev Polugaevsky Mem, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.g3 cb4!? 6.a3 Nh6+=.

5.g3 cb4!? 6.c3 Nc6=+.

5.g3 Ne7 6.Bg2 ½–½. Borysiak,Boguslaw (2160) – Wolak,Jacek (2090), Druzynowe Mistrzostwa Polski – II Liga, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.h4 cb4=+ 6.a3 Ba6 (6...Nc6 7.d4=+) 7.Ba6= Na6 8.c3 b3 9.d4 Ne7 10.Nfd2 (10.Qb3 Qd7=) 10...Nc6 11.Nb3 f5 (11...Nc7 12.h5=+) 12.a4 (12.Qh5 g6 13.Qe2 Nc7=) 12...Nc7 13.Na3 (13.Bg5 Qd7=) 13...Be7 14.Qh5 g6 15.Qh6 Bf8 16.Qf4 Be7 17.Qg3 Qd7 (17...a6 18.Bg5=) 18.Nb5 Nb5 (18...Rg8 19.Ba3+=) 19.ab5+= Na5 (19...Nd8 20.Qd3+=) 20.Na5+- ba5 21.Ra5 (21.h5 Rg8+-) 21...Bd8 22.Ra6 Bb6 23.Qd3 Rc8 24.h5 g5 25.Bg5 Qg7 (25...Rg8 26.Bf6 Rg2 27.Ke2+-) 26.Qg3 (26.Bf6 Qg2 27.Qh3 Qe4 28.Kd2 Rg8+-) 26...Rg8 27.Bd2 Qf7 28.Qf3 Qd7 29.0-0 Qb5 30.Rfa1 Qd7 31.g3 Rg4 32.Kg2 Qf7 33.h6 Kf8 34.Bc1 Kg8 35.Ba3 (35.Rb1 Qd7+-) 35...Kh8 (35...Rg6 36.Bc5 Bc5 37.dc5 Rc5 38.Ra7+=) 36.Bc5 Rcg8? (36...Bc5 37.dc5 Passed pawn) 37.Bb6+- ab6 38.Ra8 (38.Rb6 R4g6+-) 38...Ra8 39.Ra8 Rg8 40.Ra6 Rg6 41.Qf4 Qf8 42.Rb6 Rh6 43.Qc1 Rg6 44.Qb2 Qe7 45.Qb4 Qg5 (45...Qb4 46.cb4 (46.Rb4?! f4+-) 46...f4 47.b5 fg3 48.f4+-) 46.Qf8 (46.c4 Rg8 47.cd5 ed5+-) 46...Rg8 47.Qf6 Qf6 48.ef6 Re8 (48...Rc8 49.Kf3+-) 49.Kf3 Kg8 50.Kf4 Kf7 51.Ke5 h5 (51...Rc8+-) 52.Rb7 Kg6 53.Rg7 Kh6 54.f7 Rf8 55.Kf6 f4 (55...h4+-) 56.Rg8 (56.Rg8 Rb8 57.Rb8 Kh7 58.f8Q fg3 59.Rb7) 1–0. Kozel,R (2375) – Burlai,O (2320), ch–UKR sf Alushta UKR, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 a5

6.Bb2 ab4=+ 7.ab4 Ra1 8.Ba1 cb4 9.d4 Nh6 10.Bd3 Be7 11.Nbd2 (11.0-0 Nc6=+) 11...0-0 (11...Ba6 12.Qe2 Bd3 13.Qd3-/+) 12.Nb3 (12.0-0 Nc6=+) 12...Nc6 13.Bb2 Na5 14.Qe2 Qc7 15.h4 (15.0-0 Bb7-/+) 15...f6 (15...Bd7!?-/+) 16.ef6=+ gf6 17.Rh3 (17.Nfd2 Rf7=+) 17...Bd6 18.h5 Rf7 (18...Bd7 19.Kf1-/+) 19.Kf1 Rg7 20.Rh4 Bf4 (20...Bd7 21.Nbd2-/+) 21.Rf4=+ Qf4 22.Bc1 Qg4 23.Bh6 Qg2 24.Ke1 Nb3 25.cb3 Rc7 26.Kd2 e5?? (better 26...Qg4=+) 27.de5+- Bg4?? (better 27...Re7 28.Qe3 Bg4+-) 28.ef6+- Rc8 29.f7! Kf7 30.Ne5 (30.Ne5 Ke8 31.Ng4 Kd8 32.Bg5 Kc7 33.Bf4 Kd8 34.Qe6 Rc4 35.Qg8 Ke7 36.Qg7 Kd8 37.Qf8 Kd7 38.Ne5 Kc7 39.Qe7 Kc8 40.Bf5 Kb8 41.Nc4 Ka8 42.Nb6; 30.Ng5 Kf6 31.Bg7 Kg7 32.Qe5 Kf8 33.Qd6 Ke8 34.Bb5 Rc6 35.Bc6 Bd7 36.Qd7 Kf8 37.Qf7) 1–0. Simon,Jozsef (2215) – Dani,Tamas (2085), HUN–ChT3, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.b5 d4 7.Bc4 (7.Bd3 Bb7 8.0-0 Nd7=) 7...Bb7 8.d3 Ne7 (8...Nd7 9.Bf4=+) 9.0-0 (9.Bf4 Nd7 10.Nbd2 Nd5 11.Bd5 Bd5=) 9...Ng6=+ 10.Nbd2 Nd7 11.Re1 Qc7 Can e5 get defended? 12.Qe2 Be7 (12...Nf4 13.Qf1=+) 13.Ba2 (13.g3 0-0=) 13...0-0 (13...Nf4 14.Qd1=+) 14.Nc4 (14.g3 Bd8=) 14...Bf3 (14...a4!?=+) 15.gf3= Nh4 16.Bf4 (16.Qe4 a4=) 16...Qb7=+ 17.Nd2 Ng6 (17...h5 18.Qe4 Qe4 19.Re4=+ (19.de4? Ng6 20.Bg3 Bg5-+; 19.fe4? Ng6 20.Bg3 h4-+)) 18.Bg3 Bg5 19.Ne4 (19.Nc4 Nf4 20.Bf4 Bf4=+) 19...Bf4 (19...Nf4!? 20.Qd1 Bh6-/+) 20.Nd6= Qc7 21.Nc4 h5 e5 becomes the focus of attention (21...Qd8 22.Qe4 Qg5 23.Kh1=) 22.Qe4 Bh6 (22...Ra7 23.Kh1+=) 23.Re2 (better 23.h4+=) 23...Bg5? (better 23...Ra7=) 24.f4+/- Bh6 25.h3 (25.Nd6 c4 26.Nf7 Nc5 (26...Kf7? 27.f5 Nc5 28.fe6 Ne6 29.Qf5 Kg8 30.Qg6+-) 27.Nh6 Kh7 28.Qd4 gh6 29.Qc4 Qb7+/-) 25...Ne7 (25...h4!? 26.Bh2 Ne7+/-) 26.Nd6+/- g6 27.Bh4 Nf5 28.Nf5 ef5?? (better 28...gf5 29.Qf3 Kh7+/-) 29.Qg2+- Kh7 (29...Kg7 30.Bf7! Rf7 (30...Kf7?? 31.e6 Kg7 32.ed7 Qd7 33.Re7 Qe7 34.Be7+-) 31.Qa8 Bf4+-) 30.Bg5 (better 30.Bf7 Rf7 31.Qa8 Rg7+-) 30...Rfe8?? (better 30...Bg5 31.Qg5 Rae8+=) 31.Bf7 (31.Bh6 Kh6 32.Bf7 Nf8+-) 31...Nf8 (31...Bg5 32.fg5 (32.Qg5?! Ne5 33.Bd5 Rad8+=) 32...c4 33.Be8 Re8 34.Qd5+-) 32.Be8 (32.e6 Bg5 33.fg5 Qe7 34.Be8 Re8+-) 32...Re8 33.Bh6 (33.Qc6!? Qc6 34.bc6 Ne6+-) 33...Kh6 34.h4 (34.e6 Qf4 35.Qc6 Qg5 36.Kh1 Qd8+-) 34...Ne6 35.Qg3 (35.Kh2 Qe7 36.Qg3 a4+-) 35...Qd7 (35...Qg7 36.Kg2+-) 36.a4 Qd5 37.Kh2 Rg8 (37...Kh7 38.Rh1+-) 38.Ree1 Kg7 39.Rg1 Kf7 40.f3 (better 40.Ra3!? Rg7+-) 40...Qd8 41.Rg2 (41.Rgd1 Qf8+-) 41...Qd5 (better 41...Qf8+-) 42.Rgg1 Qd8 43.Rg2 Qd5 44.Rgg1 ½-½. Shtyka,S (2175) - Romanchuk,V (2265), Titled Tuesday, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.b5 Nd7 7.c3 c4 8.d3 cd3 9.Bd3 Ne7 10.0-0 Ng6 11.Re1 Bc5 12.g3 (12.Be3 Nge5 13.Ne5 Ne5 14.Bc5 Nd3 15.Bb6 Qb6 16.Qd3 Bb7+=) 12...0-0 13.h4 f6 14.Qc2? (better 14.Bg6 hg6 15.Be3=) 14...fe5 15.Bg6 hg6 (15...Rf3?! 16.Bh7 Kh8 17.Be3-/+) 16.Nbd2 (16.Bg5 Qe8 17.Nbd2 e4-+) 16...e4 17.Nd4 e5 18.Ne6? (better 18.Ne4 de4 19.Qe4-+) 18...Qf6 19.Rf1 (19.Ne4 Qe6 20.Nc5 Nc5 21.Be3-+) 19...Qe6 20.Qb3 (20.Nb3-+) 20...Nf6 21.c4 (21.a4 Qg4 22.c4 Qh3-+) 21...dc4 (better 21...Qh3 22.g4 e3 23.Qe3 Be3 24.Nb1 Ng4 25.fe3 Qf1) 22.Nc4 Bd4 (22...Qh3 23.Ne3 Be6 24.Qc2-+) 23.Rb1 (23.Be3 Ba1 24.Ra1 Bb7-+) 23...a4 24.Qc2 (24.Qa2 Qh3 25.Be3-+) 24...Qh3 25.Qe4 (25.Ne3 Ng4 26.Ng4 Bg4 27.Be3 Bf3 28.Qc4 Kh7 29.Qg8 Kg8 30.Bd4 Qg2) 25…Ne4 (25...Ne4 26.Rb2 Ng3 27.Nb6 Qh1) 0-1. Novikova,Galina (2070) - Sedina,E (2295), Euro Online U2300 Day, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.b5 Nd7 7.g3=+.

6.bc5!? Bc5 7.d4+-.

5.a3 Ba6

6.b5 Bb7 7.a4 Nd7 8.c3 c4 9.d4 cd3 10.Bd3 Qc7 11.Qe2 Ne7 12.0-0 Ng6 Will e5 fall? 13.Re1 Nc5 14.Bc2 Ne4 Exerts pressure on the backward pawn 15.Ng5 Nc3 16.Nc3 Qc3 17.Bg6 hg6 (worse 17...Qa1 18.Bf7 Kd7 19.Be6 Kc7 20.Nf7+-; worse 17...fg6 18.Ne6 Rc8 19.Be3+-) 18.Bb2 Qc7 19.Qg4 Rc8 20.Rec1 Bc5 21.Ra3 Qe7 (21...d4 22.Bd4 Ba3 23.Rc7 Rc7 24.h3=+) 22.Rf3= Rf8 23.h4 (23.Nh7 Rh8 24.Ng5 Rf8=) 23...Kd8 (23...Rc7 24.Nh7 Rh8 25.Ng5=+) 24.h5 (24.Nh7!? Rh8 25.Ng5=) 24...gh5=+ 25.Qh5 f7 seems the pivot of the position 25...Rc7 26.Qg4 Kc8 27.Rf4 g6 28.Rc3 Qd8 29.Rh3 Re7 (29...Kb8 30.Rh7 Qe8 31.Bd4=+) 30.Rh7 Qd7 31.Qh4 Qc7 (better 31...Qe8!?=) 32.Qh6+- Rd7 33.Bd4 (33.Ne6 fe6 34.Rd7 Kd7 35.Rf8 Bf8 36.Qf8 Qc5 37.Qf7 Qe7 38.Qg6 Qb4 39.Qf7 Kc8 40.Qe6 Kc7 41.Qf7 Kb8+-) 33...Ba3 (33...Bb4 34.Ne6 Qc1 35.Kh2=) 34.Kh2 (34.Ne6 Qc1 35.Kh2 Re8+=) 34...Kb8 (34...f6 35.Rd7 Qd7= (worse 35...Kd7 36.Nh7 Rd8 37.Qg6+-)) 35.Rf3 Bb4 36.Qg7 (36.Ne6!? fe6 37.Rf8 Bf8 38.Qf8 Bc8 39.Rd7 Qd7 40.Qd6 Kb7 41.Kg3+=) 36...Bc8= 37.Qh6 (37.Nf7 Qc2=) 37...Qc4 38.Rf4 Qc7 (38...f6!? 39.Rd7 Bd7=) 39.Ne6+= fe6 40.Rd7 Qd7 41.Rf8 Bf8 42.Qf8 Qh7 43.Kg1 Qc7 44.Be3 Qc2 (44...Qe5?? 45.Bf4 Qc7 46.Bc7 Kc7 47.Qf4 Kb7 48.Qf7 Kb8 49.Qg6+-) 45.Qd6 Kb7 46.Qe7 Kb8 47.Qh4 Qc4 48.g3 Qh4 49.gh4 Kb7 50.Kg2 Bd7 51.f4 a6 52.f5 (52.a5!? ba5 53.b6=+) 52...ef5-/+ (worse 52...gf5 53.h5 Be8 54.h6+-) 53.Kg3 ab5 54.ab5 Bb5 55.Kf4 Be8 56.e6 b5 57.Ke5 Kc6 58.Kf6 b4 (58...Kd6 59.Bf4 Kc5 60.Ke7-/+) 59.Ke5? (better 59.Ke7!? d4 60.Bd2-+ (60.Bd4?? Kd5-+)) 59…b3-+ (59...b3 60.Bd4 f4 61.Kf4 Kd6-/+) 0–1. Sean,Winshand Cuhendi (2335) – Dokuchaev,Andrey (2235), First Saturday IM Sep, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ba6)

6.b5 Bb7 7.c3 d4 8.d3 a6 9.c4 (9.ba6 Ra6 10.Be2 dc3=) 9...ab5-/+ 10.cb5 Nd7 11.Nbd2 Ne7 12.Nc4 Ng6 13.Bg5 (13.Be2 Be7-/+) 13...Qc7 14.Qe2 Ra7 15.g3 Nde5! 16.Bg2 (16.Nce5 f6 Double attack (16...f6 Decoy); 16.Nfe5 f6 Double attack (16...Bh1 Pinning; 16...Bh1 Deflection; 16...f6 Decoy)) 16...Nc4 17.dc4 d3! 18.Qd3? (better 18.Qd1!?-+) 18...Bf3 19.Bf3 Qe5 20.Qe2?? (20.Kf1 Qg5 21.Bc6 Ke7 22.Rd1-+) 20...Qa1 21.Qd1 Qc3 22.Kf1 f6 23.Bc6 Kf7 24.Bc1 Be7 25.Kg2 Ne5 26.Re1 Qc4 27.Re4 (27.Re5 fe5 28.Qh5 g6 29.Qf3 Kg7-+) 27...Qd3 28.Qd3 Nd3 29.Bf4 f5 30.Rc4 Nf4 31.Rf4 Ra3 32.Rf3 (32.g4 Bd6 33.Rc4 Rd8-+) 32…Rf3 (32...Rf3 33.Bf3 c4-+) 0-1. Haroldlee123 (1725) - marekt (2475), ChessWorld.net, 2013.

6.b5 Bb7 7.c3 d4 8.Qe2=.

6.b5 Bb7 7.c3 Nd7 8.d4 Rc8 (8...a6 9.Bd3=) 9.Bd3+= Qc7 (9...Be7 10.0-0+=) 10.0-0 Ne7 11.Ra2 (11.Ng5 cd4 12.cd4 Nf5+=) 11...Ng6 (11...c4 12.Bc2+=) 12.Ng5 Be7 (better 12...c4 13.Bc2 Be7+-) 13.f4 (13.Qf3 Bg5 14.Bg5 f6+=) 13...Ndf8 (better 13...cd4 14.Bg6 hg6 15.cd4 Qc4=+) 14.f5+- ef5 15.Bf5 Bg5 16.Bg5 (16.Bc8 Bc1 17.Qc1 Bc8-/+) 16...Ne6 17.Be6 fe6 18.Raf2 cd4 (18...Qd7 19.Qd3+-) 19.cd4 Qd7 20.h4 (better 20.Qd3+-) 20...Rf8?? (20...Qb5 21.Qg4 Qd7+-) 21.Rf8+- Nf8 22.Qh5 (better 22.Qf3 Ng6 23.h5 Rc1 24.Bc1 Nf4+-) 22...g6 (22...Ng6 23.Qh7 Qf7+-) 23.Qh6 Qb5 24.Qf8 (24.Qf8 Kd7 25.Qd6 Ke8 26.Qe6) 1–0. Chaplin,Erik (2115) – Tholey,Jean_Paul (2045), FRA, Nationale II, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.b5 Bb7 7.d4 Qc7 8.Bd3 (8.c3 a6=) 8...a6 (8...cd4 9.Bb2= (worse 9.Nd4 Qe5 10.Be3 Bc5-/+)) 9.Nc3 (9.Be3!?=) 9...cd4=+ 10.Ne2 Nd7 11.Bf4 Ne7 12.0-0 Ng6 e5 seems the pivot of the position 13.Re1 (13.Bg6 hg6 14.Ned4 g5 15.Ng5 Ne5=) 13...Nf4-/+ 14.Nf4 Nc5 (14...Bc5 15.ba6 Ba6 16.Ba6 Ra6 17.Nd4=+) 15.Nd4 a5 (15...Nd3 16.cd3 Bc5 17.ba6 Ra6 18.Nb5=) 16.Qh5+= g6 17.Qg5 Be7 18.Qh6 0-0-0 (18...Bf8 19.Qh3=) 19.Rab1 (19.Nh3 Ne4 20.Qg7 Ng5=+) 19...Bf8 (19...a4 20.Nh3=) 20.Qg5=+ Be7 (20...Bg7 21.Nh5 h6-+) 21.Qg4= Kb8 22.Nc6 (22.Qg3 h6=) 22...Bc6= 23.bc6 Qc6 24.Bb5 Qc7 25.Ne2 (25.Nd3=) 25...Rc8 (better 25...Qe5!? 26.Nd4 Qg5 27.Nc6 Kc7=) 26.Nd4= Qb7 27.Qe2 Ka7 28.f3 (28.c4 dc4 29.Bc4 Rhd8+=) 28...Nd7 29.Rb3 (29.Red1 Rhd8+= (29...Ba3? 30.Bd7 Qd7 31.Nb5 Kb8 32.Na3+-)) 29...Bc5 30.c3 Nb8 31.Kh1 (31.Rd1 Rhd8=) 31...Qc7 (31...Qe7 32.Reb1=) 32.Bd3 Ka8 33.h3 Nc6 (33...Rhd8 34.Bb5=) 34.Nb5 (34.Nc6 Qc6 35.Reb1 Qc7=) 34...Qd7 (34...Qe7 35.c4=+) 35.Reb1 Rb8 36.Bc2 Na7 37.c4 Rhd8 38.f4 Nb5 39.Rb5 d4 40.Be4 Ka7 41.Qc2 Qc7 (41...Ba3?? 42.Qa4 Ka6 43.Qa3+-) 42.R1b3 d3 (42...g5 43.fg5 Qe5 44.Qd2=) 43.Bd3 g5 (43...Rd4 44.Qc1=) 44.fg5+= Qe5 45.Qc3 (45.Rb1!?+=) 45...Qc3= 46.Rc3 Rg8 47.Bh7 Rg5 48.Rd3? (better 48.Be4=+) 48...f5-+ 49.Rd7 (49.Rb2 Rb7 50.Bf5 ef5-+) 49...Rb7 (49...Rb7 50.Rb7 Kb7-+) 0–1. Sequera,J (2430) – Cori,J (2265), Campeonato Continental Absolut, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.Ba6 Na6

7.0-0 cb4 8.c3 b3=.

7.c3 Nb8 8.d4 cd4 9.cd4 Nh6 (9...Nd7!?+=) 10.Bh6 gh6 11.0-0 Bg7 12.Nc3 0-0 13.Rc1 Nc6 (13...a6 14.Re1+-) 14.Qa4 Ne7 15.Nb5 a5 16.Rc2 Rc8 17.Rfc1 Rc2 18.Rc2 Qd7 19.ba5 Rc8 20.Rc8 Qc8 21.g3 ba5 22.Qa5 Nc6 23.Na7 (23.Qa4 Bf8+-) 23...Na7 24.Qa7 Bf8 25.a4 Bb4 26.Kg2 Qc3 27.Qd7 Ba5 28.Qe8 Kg7 29.Qe7 (29.Qb5 Kg8+-) 29...Qc1 (29...Qc6 30.Qa3+-) 30.Qc5+- Bc3 31.a5 Qa1? (better 31...h5+-) 32.a6! Ba5 (32...Qa6 33.Qc3 Deflection) 33.a7 Bc3 (33...Bd8+-) 34.Qb6 1–0. Hoffmann,Matthias (2020) – Ochs,Daniel Elias (1760), 21st Rhein–Main–Open, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.c3 Nc7 8.d4 a5 9.bc5 bc5 10.a4 (10.0-0 Qd7=) 10...c4 11.0-0 (11.Nbd2 Rb8=) 11...Rb8 12.Na3 Ne7 13.Qc2 Nc6 14.Rb1 Be7 15.Nd2 f5 (15...Rb1 16.Qb1 Qd7 17.Qb7=+) 16.ef6 gf6 17.Re1 Kd7 18.f4 Bd6 19.Nf3 Rb1 20.Qb1 (20.Nb1 Qb8 21.f5 e5 22.de5 fe5=+) 20...Qb8 21.Nb5 Qb6 22.Kh1 Nb5 (22...Ne7 23.Qc2=) 23.ab5 (23.f5 e5 24.ab5 e4 25.bc6 Kc6=) 23...Ne7= 24.h3 (24.Nh4 f5=) 24...h5 (24...Nf5!?-/+) 25.Nh4= f5 26.Nf3 Ng6 27.Ng5 Exerts pressure on the backward pawn 27...Re8 (27...Bf4 28.Re6 Re8 29.Re8 (29.Rb6?? Re1) 29...Ke8 30.Bf4 Nf4 31.Qf5+-; 27...Nf4 28.Bf4 Bf4 29.Ne6 Qe6 30.Re6 Ke6 31.Qe1 Kf6 32.Qh4 Bg5 33.Qg3+-) 28.Ne6 Re6 29.Qf5 Nf8 (29...Bf4!? 30.Qf7 Re7 31.Re7 Ne7 32.Bf4 Qb5 33.Qh5 a4 34.Qg4 Kd8+=) 30.Re6+- Ne6 31.Qf7 (31.Qd5?! Nc7 32.Qf7 Kc8 33.Qf5 Kb7=+) 31...Be7 32.Ba3 Qd8 33.f5 Ng5 (33...Nf4 34.Bc1 Qb8 35.f6+-) 34.Qd5+- Ke8 35.Qg8 (35.Qc6!? Qd7 36.Qg6 Kf8 37.Be7 Qe7 38.Qh5 Nf7+-) 35...Kd7+- 36.Qd5 Ke8 37.Qg8 (37.Qc6 Qd7 38.Qg6 Kf8 39.Be7 Qe7 40.Qh5 Nf7+-) 37...Kd7+- 38.Qg7 Ne4 39.b6 (better 39.Qe5 Ba3 40.Qe4=) 39...Qf8? (better 39...Ng3! 40.Qg3 Ba3+=) 40.Qe5 Nf2 (40...Nc3 41.Qc7 Ke8 42.Qc6 Kd8 43.b7 Bd6 44.Bd6 Qd6 45.Qd6 Ke8 46.b8Q Kf7 47.Qbf8) 41.Kg1 Ba3 (41...Bd6 42.Qe6 Kc6 43.Kf2 Kb7 44.Bd6 Qc8+-) 42.Qc7 (42.Kf2 Qd6 43.Qb5 Kd8+-) 42...Ke8 43.b7 Nh3 44.gh3 Qg8 45.Kf1 (45.Kf1 Qg1 46.Kg1 Be7 47.Qc6 Kf8 48.b8Q Bd8 49.Qd8 Kf7 50.Qcf6) 1–0. Haarr,J (2155) – Sarkar,J (2375), 8th Gibtelecom Masters, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.d4 cb4 8.ab4 Nb4= 9.c3 (9.0-0 Ne7=+) 9...Nc6=+ 10.Qa4 Qd7 11.Na3 Ne5 (11...Ba3 12.Qa3 (12.Ba3? Ne5 13.Qd7 Nd7-+) 12...Nge7 13.0-0-/+) 12.Nb5 (12.Qd7!? Nd7 13.Nb5=+) 12...Nf3-/+ 13.gf3 Rc8 14.Bf4 a5 (14...Nf6 15.0-0 Nh5 16.Na7-/+) 15.0-0 (15.Bc7 Rc7 16.Nc7 Kd8=+) 15...Nf6 (15...Rc4 16.Nc7 Kd8 17.Qb3 Rc7 18.Qb6-/+) 16.Rfb1 (16.Bc7 Be7 17.Bb6 0-0 18.Qa5 Rb8-/+) 16...Be7 (16...Rc6 17.Nc7 Kd8 18.Rb6 Rb6 19.Qa5=+) 17.Nc7? (17.Bc7 0-0 (worse 17...Rc7 18.Nc7 Kf8 19.Na8+/-) 18.Bb6 Rc4 19.Qa5 Rb8-+) 17...Kf8 (17...Kd8 18.Qb3 Bd6 19.Bd6 Qd6 20.Nb5-+) 18.Rb6 Qa4?? (better 18...Rc7 19.Rb8 Bd8 20.Bc7 Qc7 21.Qa3 Ke8-/+) 19.Ra4=+ Nh5 (better 19...g5 20.Be5 Nd7=+) 20.Bg3?? (better 20.Rc6 Rd8 21.Be5=) 20...Ng3-+ 21.hg3? (better 21.Rc6 Ne2 22.Kf1-+) 21...g6 (better 21...Bd8 22.Ne6 fe6 23.Re6 Rc3-+) 22.Nb5 Kg7 23.Rb7 (23.Ra5?? Bd8 24.Rba6 Ba5 25.Ra5 Ra8 26.Ra8 Ra8-+) 23...Kf6 (23...Bd8!?-/+) 24.Ra5=+ Ra8 25.Raa7 Ra7 26.Na7 h5 (26...Bd6 27.Nb5 Bb8 28.f4=) 27.Nc6= Bd6 28.Rd7 Bb8 29.f4 (29.Nd8 Rf8=) 29...Rc8=+ 30.Nd8 (better 30.Nb8 Rb8 31.Rc7=+) 30...Kf5 (better 30...Rc7 31.Rc7 Bc7-/+) 31.Nf7+= Rc3 32.Ng5 h4? (better 32...Rc2+/-) 33.Kg2+- hg3? (33...h3 34.Kh2 Bf4 35.gf4 Kf4 36.Ne6 Kf5+-) 34.fg3 (better 34.Rf7 Kg4 35.f3 (35.Ne6?? Rc2 36.Kg1 Rf2-+) 35...Rf3 36.Nf3 Bf4 37.Ne5 Be5 38.de5+-) 34...Kg4 (better 34...Rg3 35.Kg3 Bf4 36.Kf3 Bg5=+) 35.Rb7? (better 35.Ne6 Rc2 36.Kf1=) 35...Rg3-+ 36.Kf2 Bf4 37.Ne6 g5 (better 37...Rf3 38.Kg2 Re3-+) 38.Rd7?? (38.Nf4 Rf3 (38...gf4?! 39.Rb5=; 38...Kf4?! 39.Rd7=) 39.Ke2 Rf4-+) 38...Rd3 (38...Rf3 39.Kg2 Be3 40.Ng5 Rf2 (40...Bg5 41.Rd5 Be3 42.Re5 Rf2 43.Kh1 Kf3 44.Re3 Ke3 45.Kg1 Rd2 46.d5 Kf3 47.d6 Rd6 48.Kh2 Rd1 49.Kh3 Rh1) 41.Kg1 Rf7 42.Kg2 A) 42...Kg5?! 43.Rf7 (43.Rd5 Kg4 44.Rd8 Rf2 45.Kh1 Kf3 46.Rf8 Bf4 47.Rf4 Kf4 48.d5 Kf3 49.d6 Rd2 50.Kg1 Rd6 51.Kh2 Rd1 52.Kh3 Rh1) 43...Bd4 44.Rd7=; B) 42...Rd7 43.Nf3 Rd6 44.Nd2 Bd2 45.Kf2 Re6 46.Kg2 Re2 47.Kf1 Kf3 48.Kg1 Kg3 49.Kf1 Re1) 39.Rd5= Rd2 40.Ke1 Be3 Attacks the isolani on d4 41.Re5 Bd4 42.Re4 Kf5 43.Rd4 Rd4 44.Nd4 Kf4 45.Kf2 g4 46.Kg2 g3 47.Nc2 Ke4 48.Ne1 Kd5 49.Nf3 Kc4 50.Nh4 Kb5 51.Kf3 Ka5 52.Ng2 Ka4 53.Ne3 Ka3 54.Nd5 g2 55.Kg3?? (better 55.Kf2=) 55...g1Q-+ 56.Kf3 Qd4 (56...Qh1 57.Kg3 Qd5 58.Kf2 Qd6 59.Kg2 Kb2 60.Kf3 Kc3 61.Ke4 Kc2 62.Ke3 Qe5 63.Kf3 Kd3 64.Kg2 Qg7 65.Kf3 Qg5 66.Kf2 Qg4 67.Kf1 Ke3 68.Ke1 Qe2) 57.Nf4 Qd8 58.Kg4 Qa8 59.Kf5 Ka4 60.Ne6 Qa6 (60...Kb4 61.Kf6-+) 61.Nd4?? (better 61.Nc5 Kb4 62.Na6=) 61...Qc8 62.Ke4 Kb4 63.Ne6 (63.Kd5 Qb7 64.Ke5 Kc5 65.Ne6 Kc4-+) 63...Qc4 (63...Qe6 64.Kf4 Qf6 65.Kg3 Qg5 66.Kf3 Qh5 67.Kg3 Qd5 68.Kh2 Qc4 69.Kh3 Qb5 70.Kg2 Kc5 71.Kf2 Kd6 72.Kf3 Qg5 73.Ke4 Qe5 74.Kf3 Qd5 75.Kg4 Qd4 76.Kf3 Kc5 77.Kg3 Qe4 78.Kh3 Kd4 79.Kg3 Ke3 80.Kh2 Qg4 81.Kh1 Kf3 82.Kh2 Qg2) 64.Nd4 (64.Ke5-+) 64...Qe6 (better 64...Kc5 65.Kf4 Qd4 66.Kg3 Qe5 67.Kf2 Qf4 68.Kg1 Qg3 69.Kh1 Qh3 70.Kg1 Qe3 71.Kf1 Qd2 72.Kg1 Qd7 73.Kf2 Qg4 74.Ke3 Kc4 75.Kd2 Qf4 76.Ke2 Kc3 77.Ke1 Kd3 78.Kd1 Qd2) 65.Ne6= ½-½. pacalmisu (2215) - carl2000 (2285), Rated Blitz game, lichess.org, 2015. (=1.e4 C00: French: Unusual White 2nd moves 1...e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

7.d4 cb4 8.c3 b3 9.Qb3=.

7.d4 Nc7 8.c3 a5 9.bc5 bc5 10.a4 (10.Nbd2 Be7+=) 10...Ne7 11.Ba3 Nc6 12.dc5 g6 (12...Rb8 13.Nbd2=) 13.0-0 Bg7 14.Re1 0-0 15.Nbd2 f6 16.Nd4 (16.ef6 Rf6 17.Rb1 Rf4+=) 16...Ne5 17.Rb1 Bh6 18.Rb7 Re8 19.Qc2 Qc8 20.Reb1 Na6 Attacking the isolated pawn on c5 21.c6 Nc6 22.Nc6 Qc6 23.R1b6 Qc8 24.Bd6 (24.Nb3 Nb4 25.Qe2 Qc4 26.Qc4 dc4 27.cb4 cb3 28.ba5 Ra5=+) 24...Bf8 (24...Rd8!? 25.Be7 Rd7 26.Rd7 Qd7 27.Bf6 Nc5=+) 25.Bf8=+ Rf8 26.Nb3 Rb8 (26...Rf7 27.Rf7 Kf7 28.Na5=+) 27.Rb8 (27.Na5 Rb7 28.Nb7 Nc7+=) 27...Nb8 28.Qd3 ½–½. Burghardt,J (2185) – Werner,Di (2290), FSIMA February, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ba6)

7.Qe2 Nc7= 8.bc5 bc5 9.d4 c4 10.Bg5 Ne7 11.0-0 h6 12.Bd2 Nc6 13.Nc3 Be7 14.Rfb1 0-0 15.Qe3 Rb8 16.Ne2 Rb1 17.Rb1 Qa8 18.Nf4 Rb8 19.Ra1 Rb7 20.g4 (20.Bc1 a5=+) 20...Qb8 21.Qe1 (21.Kg2 a5-/+) 21...Nb5 (21...Rb2 22.Qd1 Qb7-/+) 22.c3? (better 22.Qe3!?-/+) 22...Na3-+ 23.Rc1 Rb1 (23...Rb2 24.Ne2-+) 24.Nh5 Rc1 25.Bc1 Qb1 26.Kg2 Qg6 (26...a5 27.Nf4-+) 27.Kg3 (27.Ba3 Qg4 28.Ng3 Ba3-+) 27...Nb1 28.Nf4 Qc2 29.Ne2 a5 0–1. Dovzik,Juri (2400) – Matlak,Marek (2450), Frydek–Mistek op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ba6 6.Ba6 Na6)

5.a3 Bb7

6.Bb5 Nd7 7.0-0 a6 8.Bd7 Qd7 9.d4 (9.bc5 bc5 10.d3 d4=) 9...cd4 (9...cb4!? 10.ab4 Bb4=+) 10.Nd4= b5 11.Bb2 Ne7 12.f4 g6 (12...Nc6 13.Qd3=) 13.Nd2+= Bg7 14.N2f3 0-0 15.Nb3 h5 (15...Qc7 16.Nc5=) 16.Nc5+= Qc7 17.Nd4 Nc8 18.Qe1 Nb6 19.Qh4 Nc4 20.Bc1 Ra7 (20...a5 21.Rb1= (worse 21.Nb7 ab4 22.Nd6 Nd6-/+)) 21.Qg5 Bc8 22.c3 Qe7 23.Qg3 Qc7 24.Qh3 Bd7 25.g4 (25.Be3!?=) 25...hg4=+ 26.Qg4 Be8 27.Rf3 Bd7 28.Rh3 Rc8 29.Qh4 Kf8 30.Ra2 Qd8 31.Qh7 Ne5?? (better 31...Qc7=) 32.fe5+- Be5 33.Rf2 Rc5 (33...Qf6 34.Rf6 Bf6+-) 34.bc5 (34.Qf7) 34...Rc7 35.Qf7 1-0. airah (2290) - phirigift (2275), Rated Blitz game, lichess.org, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.c3 d4 7.cd4 cb4 8.ab4 Nc6 9.Bb5 a6 10.Bc6 Bc6 11.Ba3 Ne7 12.Nc3 Nf5 13.0-0 (13.d5 Bd5 14.Nd5 Qd5=) 13...Bb7 (13...Nd4 14.Nd4 Qd4 15.Qe2=+) 14.b5 Ba3 15.Ra3 a5 (15...ab5 16.Ra8 Ba8 17.Nb5=) 16.Ra4 Rc8 17.Qe2 0-0 18.Rb1 Bf3 19.Qf3 Nd4 20.Qf4 Nf5 21.g4 (21.Ra2!?=+) 21...Nh4-/+ 22.Ra2?? (better 22.Qe3 Qd2! 23.Qd2 Nf3 24.Kg2 Nd2 25.Rc1-+) 22...Rc3!-+ 23.dc3 Qd5 24.f3 (24.Qg3 Nf3 25.Kg2 Ne5 26.Kf1 Qa2 27.Rd1-+) 24...Qa2 (24...Qa2 25.Kf1 Qg2 26.Ke1 Rd8 27.Qe3 Nf3 28.Qf3 Qf3 29.Ra1 Qe4 30.Kf2 Rd2 31.Kg3 Qe3 32.Kh4 Rh2) 0–1. Wohlfart,Paulus – Benjes,Roland, Oberliga Ost C9495, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Ne7 7.d4 c4 8.a4 a5 9.b5 Nd7 10.Nbd2 Nf5 11.g3 f6 12.Qe2 fe5 13.Ne5 Ne5 14.Qe5 (worse 14.de5 d4 15.Ne4 Ne3=+) 14...Qd7 15.Nf3 Bd6 16.Qe2 0-0 17.Bg2 Rf6 18.0-0 Raf8 19.Ne5 Be5 20.Qe5 Kh8 21.Bf4 Kg8 22.Rae1 Bc8 23.Qb8 Bb7 24.Qc7 R8f7 25.Qd7 (25.Qb6 e5 26.Qa5 ef4-/+) 25...Rd7 26.Bh3 h6 27.Bf5 (27.Bf5 ef5 28.Re8 Kf7 29.Rfe1+/-) 1-0. kestutis (2450) - marekt (2230), gameknot.com, 2016.

6.bc5 bc5 7.c3 a5 8.Bd3 Ne7 9.0-0 Ba6 10.c4 Nbc6 11.Qa4 Bc4 12.Bc4 dc4 13.Nc3 Qd7 14.Qc4 Ng6 15.d4 (better 15.Qe4=) 15...cd4-/+ 16.Nb5 Rc8 17.Nbd4 Nd4 18.Qd4 Qd4 19.Nd4 Ne5 20.Bd2 Nc4 21.Rfc1 Kd7 22.Rab1? (22.Rd1 e5 23.Nb5-+) 22...Ba3?? (better 22...Nd2 23.Rb7 Kd8 24.Rc8 Kc8 25.Rf7 Ba3-+) 23.Rb7=+ Ke8 24.Rc2 Nd6 25.Rc8 Nc8 26.Ba5 h5?? (better 26...Bd6=) 27.Nb5 Bf8? (better 27...Nd6 28.Rb8 Kd7 29.Rh8 Nb5 30.Rh5 Kc6+-) 28.Rc7+- 1–0. Hoiberg,Nina (2195) – Sikora Gizynska,Bozena (2220), Nordic–tt Aabybro, 1989. (=1.e4 c5 2.Nf3 e6 3.b4 b6 4.e5 d5 5.a3 Bb7)

5.a3 Nc6

6.b5 Nce7 7.a4 d4 8.Bc4+= Bb7 9.d3 (9.0-0 Ng6 10.Re1 Nh6=) 9...Ng6= 10.Qe2 N8e7 11.0-0 Nd5 12.Re1 Ndf4 13.Bf4 Nf4 14.Qd1 g5 15.g3 Nh3 16.Kf1 h5 17.Nbd2 h4 18.Ne4 (18.g4 Nf4=) 18...Be7 (18...hg3 19.Nf6 Ke7 20.fg3=) 19.Kg2 (19.g4!?=) 19...g4 20.Nfd2 hg3 21.hg3 Rg8 22.a5 Qc7 23.a6 Bc8 24.Nd6 (24.Nf6!? Bf6 25.ef6=) 24...Bd6=+ 25.ed6 Qd6 26.Ne4 Qe7 27.Qd2 f5 28.Qh6 (better 28.Qe2!? Bd7 29.Nd2-/+) 28...fe4-+ 29.Re4 Qf7 (29...Kd8 30.Be6 Qg5 31.Qg5 Rg5 32.Rae1 Be6 33.Re6-/+) 30.f4?? (better 30.Be6!? Qf2 31.Kh1=) 30...Qg6 (30...Rg6 31.Qh5 Kf8 32.Rae1-/+) 31.Qg6-/+ Rg6 32.Rae1 Ke7 33.f5 Rf6?? (better 33...Rg5 34.Be6 Be6 35.Re6 Kf8 36.Rf6 Kg7-/+) 34.Rg4+= Rf5 35.Kh3 e5 (35...Bd7 36.Rg7 Rf7 37.Rf7 Kf7 38.g4+=) 36.Kg2+/- Rf2 37.Kf2 Bg4 38.Re5 Kf6 39.Re4 Bf5 40.Rf4 Kg5 41.g4?? (better 41.Bd5 Rh8 42.Kg2+/-) 41...Kf4-+ 42.gf5 Kf5 43.Kf3 Rf8 44.Bd5?? (44.Kf2-+) 44...Ke5 45.Ke2 (45.Bf7 Rf7 46.Kg2 Kd5-+) 45...Kd5 46.Kd2 c4 47.c3 (47.Ke1 Re8 48.Kf2-+) 47...dc3 48.Kc3 cd3 (48...Rf3 49.Kc2 cd3 50.Kb2 Kc4 51.Kc1 Kc3 52.Kb1 Rf1 53.Ka2 d2 54.Ka3 Ra1) 49.Kd3 Kc5 (49...Kc5 50.Ke3 Kb5-+) 0-1. Watneg (2625) - opperwezen (2700), lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.c3 d4 7.Bb5 Bd7 8.Qe2 Nge7 9.0-0 Nd5 10.Bb2 Be7 11.cd4 (11.bc5!? dc3 12.Nc3 Nc3 13.Bc3 Bc5 14.d4+=) 11...cb4= 12.Rc1 (12.Bc4 0-0=+) 12...Na5=+ 13.Re1 (13.Bd7 Qd7 14.Qd1 0-0=+) 13...0-0 (13...Bb5 14.Qb5 Qd7 15.Qe2=+) 14.ab4 (14.Bd3 Nf4 15.Qe3 Nd3 16.Qd3 a6=+) 14...Nb4 15.Na3 (15.Ba4 Ba4 16.Ra4 Qd7-/+) 15...Rc8 (15...Bb5 16.Qb5 Qd5 17.Qe2-/+) 16.Bc3 Nd5 (16...Bb5 17.Qb5 a6 18.Qe2=+) 17.Bd3 (17.Ba5!? ba5 18.Reb1=) 17...Nf4-/+ 18.Qe4 Nd3 19.Qd3 Nb3 20.Ra2 Bc6 21.Nc2 (21.Nb5 Ra8 22.Rb1 a6=+) 21...a5 22.Na1 Nc5! 23.Qe3 (23.dc5 Qd5 Double attack (23...Qd3 Pinning; 23...Qd3 Deflection; 23...Qd5 Decoy)) 23...Bd5 24.Rb2 Na4 25.Rbb1 Rc4 26.Nb3 h6 (26...Qd7 27.Nc1-+) 27.Nc1 Qc7 28.Ne2 Rb8 29.Ba1 b5 30.Nf4 Ba8 (30...Qd7 31.Nd5 Qd5 32.d3-/+) 31.d5 ed5 (31...Bd5 32.Nd5 ed5 33.e6=+) 32.Nd4 (32.Bd4 b4=+) 32...Bg5 (32...b4 33.d3 Rc5 34.Nf5-/+) 33.h4 (33.Rb5 Rb5 34.Nb5 d4 35.Nd4 Rc1=) 33...Bh4 34.Nb5? (better 34.Rb5 Rb5 35.Nb5-/+) 34...Rb5!-+ 35.Rb5 Re4 36.Qb3 (36.Nd5 Re3 A) 37.Nc7?? Re1 38.Kh2 Bc6 (worse 38...Ra1 39.Na8 Bf2 40.Ra5-+; worse 38...Bf2 39.Na8 Ra1 40.Ra5-+) 39.Rb8 Kh7-+; B) 37.Ne3-+) 36...Re1 (36...Rf4 37.g3 Bc6 38.Rb8 (38.gf4 Bb5 39.Qb5 Qc2+-) 38...Bd8 39.gf4+-) 37.Kh2 Ra1 38.Rb8 Kh7 39.Qd3 (39.g3 Bc6 40.Rf8 Qe5 41.Qd3 Qe4 42.Qe4 de4 43.gh4 Rf1-+) 39...g6 40.Ra8 Qc1 41.Kh3 Ra3 (41...Ra3 42.Qa3 Qa3 43.g3 Bg5-+) 0–1. Galle,A (1990) – Dhar,S (2140), HZ Open Vlissingen NED, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Bd7 7.d4 Qc7 8.Bd3 c4 (8...cb4 9.ab4 f6 10.Bf4 fe5 11.Bg3+-) 9.Bc2 f6 10.Bf4 (10.0-0 fe5 11.b5 Na5 12.Ne5 Nf6+-) 10...Nge7 11.h4 0-0-0 12.Bh2 Qb7 13.a4 Be8 14.Na3 Bh5 15.Qe2 (15.ef6!? Nf5 16.b5+=) 15...fe5= 16.b5 Nd4?? (better 16...e4 17.bc6 Nc6 18.Be4 de4 19.Qe4 Ba3 20.Ra3 Na5+=) 17.cd4+- e4 (17...Bf3 18.gf3 (18.Qf3?! ed4 19.Qf7 Ng6 20.Qe6 Qd7 21.Qd7 Kd7+-) 18...ed4 19.Nc4 dc4 20.Qe6 (20.Qc4?! Kd7 21.0-0-0 Nd5+-) 20...Qd7 21.Qc4 Kb7 22.0-0-0+-) 18.Nc4!+- Nf5? (18...dc4 19.Nd2 Double attack (19.Nd2 Decoy)) 19.Be4 Nd4 20.Qe3 (20.Rc1 Bc5 (20...Ne2?? 21.Nb6; 20...de4?? 21.Nb6) 21.Qe3 de4 22.Nd4 Qd5+- (22...Rd4?? 23.Nd6 Rd6 24.Bd6+-)) 20...Bf3? (better 20...Nf3 21.Bf3 Bf3+-) 21.Rc1 Bc5 (21...Be4?? 22.Nb6; 21...de4?? 22.Nb6) 22.Qd4 Qe7 (22...Be4 23.Nd6 Rd6 24.Bd6 Kd8+- (24...Bg2?? 25.Rg1 Re8 26.Bc5 bc5 27.Rg2+-)) 23.Nd6! Kd7 (23...Rd6 24.Be5 Double attack (24.Be5 Decoy; 24.Bf3 Zwischenzug)) 24.Rc5 bc5 25.Qc5 Rc8 26.Qa7 Rc7 27.Qc7! Kc7 28.Nf5 (28.Bf3 e5 29.Nf5 Qb4 30.Ke2 Qb2 31.Kd3 Kb6 32.Bd5 Rd8-/+) 28...Kb6 29.Ne7 Be4 30.Kd2 Bg2 31.Rg1 Be4 32.Rg7 Ra8 (32...Rf8 33.Bg1 Ka5 34.f3 Ka4 35.b6 Bf3 36.Nc6+-) 33.f3! Bf3 34.Bg1 Ka5 (34...d4 35.Bd4 Ka5+-) 35.Nc6 Ka4 36.b6 (36.b6 Rf8 37.b7+-) 1–0. Riha,Vojtech (2215) – Eret,Jonas (2175), ch–CZE Junior (8), 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Nc6)

6.c3 Bd7 7.d4 Be7 8.Bd3 Qc7 9.0-0 f6 (9...a6 10.Re1+=) 10.b5 (10.Bf4 f5+-) 10...Na5+= 11.Bf4 f5 12.a4 c4 13.Bc2 0-0-0 14.Nbd2 (14.Bg5!?+=) 14...h6= 15.h4 g5 (15...Be8 16.Qe2=) 16.hg5+= hg5 17.Ng5 Nh6 18.g3 Rdg8 19.Ndf3 Qd8 (19...Kb8 20.Kg2=) 20.Qd2 Qf8 21.Kg2 Qg7 22.Rh1 Bf8 (22...Ng4 23.Rh8 Rh8 24.Rh1+=) 23.Rh3+= Nf7 24.Rah1 Ng5 25.Ng5 (25.Bg5 Rh3 26.Rh3 Be7 27.Be7 Qe7+-) 25...Rh3+= 26.Rh3 Be7 27.Rh7 Qf8 28.Nf7 Nb7 29.Bd1 Nd8 30.Bh6 Qf7? (better 30...Qe8!?+-) 31.Rf7+- Nf7 32.Bh5 Ng5 33.Bg5 Bg5 34.Qa2 Bd8 (34...Rh8 35.Qe2+-) 35.Qe2 (35.Qa3 Rh8 36.Bf7 Bc7+-) 35...Rg5 (35...Be7 36.Bf7 Rh8 37.Qf3+-) 36.f4 Rg8 37.Bf7 Rh8 38.g4 Rh4 (38...Rh7 39.Bh5 fg4 40.Qg4+- (40.Bg4?! Kc7+-)) 39.Bh5 (better 39.gf5 Rf4 40.fe6+-) 39...fg4 40.Bg4 Be7 (40...Kc7 41.Qf3 Rh8 42.Bh3+-) 41.Qf3 Rh8 42.Bh3 (42.f5 Kc7 43.f6 Bf8+-) 42...Rg8 43.Kf1 Rf8 44.f5! ef5 (44...Kc7+-) 45.Qd5 Rh8 (45...Kc7+-) 46.Qa8 (46.Qa8 Kc7 47.Qh8+-) 1–0. Nunes,Moezio Correia (1795) – Rocancourt Moreira,M (2020), CCXC – Prof Nilo Sales – Etapa, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 d4

6.Bb2 Bb7 7.Bd3=.

6.Bb2 Nh6 7.c3 dc3 (7...d3!? 8.Qa4 Qd7 9.Qd7 Nd7 10.Bd3 Bb7+=) 8.Nc3+- (worse 8.dc3 Qd1 9.Kd1 Ng4=+) 8...Nf5 (8...Nc6 9.bc5 bc5 10.Bb5+=) 9.bc5 (9.Bb5 Bd7 10.bc5 bc5+=) 9...Bc5 (9...Bb7 10.cb6 ab6 11.Bb5 Bc6 12.d4+-) 10.Bb5 Bd7 (10...Ke7 11.Ne4 Qd5 12.Qe2+-) 11.d4 Be7 12.Rc1 (12.d5 Bc5 13.d6 0-0+-) 12...0-0+- 13.h4 (13.d5 ed5 14.Qd5 Bb5 15.Qb5 Qd7+-) 13...Bc6 (13...Bb5 14.Nb5 Nd7 15.h5=) 14.Bd3 (better 14.d5 ed5 15.Bd3+=) 14...Bd5 (better 14...g6!?+=) 15.Qe2+- Bb7 16.Nb5 (better 16.d5!? Bc5 17.h5+-) 16...Nd7 (16...a6 17.Nc7 Ra7 18.d5 Bd5 19.Nd5 Qd5 20.0-0+=) 17.Rc7 (better 17.0-0+=) 17...Rb8? (better 17...Bf3!? 18.Qf3 a6 19.Bf5 ab5+=) 18.Rb7+- Rb7 19.Qe4 (19.g4 a6 (19...Nh4? 20.Nh4 Bh4 21.Qe4+-) 20.gf5 ab5 21.fe6 fe6+-) 19...a6? (better 19...h5 20.Nd6 Rb8 21.Nf5 ef5 22.Qf5 g6+=) 20.Qb7+- ab5 21.Qe4 (better 21.Bb5!? Qc8 22.Qe4 h5+-) 21...Qa8 (better 21...b4 22.g4 ba3+-) 22.Qg4?? (better 22.g4 Qe4 23.Be4+-) 22...Ba3=+ 23.Ba3? (better 23.Bc3=+) 23...Qa3-+ 24.Bf5 ef5 25.Qf5 Qc1 26.Ke2 Qh1 27.Qd7 Qc1 (better 27...Qg2 28.Qb5 Qg4-+) 28.Ng5?? White plans e6 (better 28.Qb5 Ra8 29.Qb6 Ra2 30.Kd3 Qa3 31.Ke4 Rf2 32.Qb8 Qf8 33.Qf8 Kf8 34.g3=+) 28...Qc4-+ 29.Ke3 h6 30.Ne4 b4 31.d5?? (31.Nd2 Qc3 32.Ke2-+) 31...b3 32.e6 Qc1 (better 32...fe6 33.Qe6 Kh8 34.Qc6 Qc6 35.dc6-+) 33.Kd3 (33.Nd2 fe6 34.Qe6 Kh8 35.f3-+) 33...b2 34.Nc3 b1Q (34...b1B 35.Nb1 Qb1 36.Ke2 Qe4 37.Kf1 fe6 38.Kg1-+) 35.Nb1 Qb1 36.Kd4 (36.Kd2 fe6 37.f3 Qb4 38.Kd3 Qb3 39.Ke2 Qc4 40.Kf2 Qh4 41.Ke2 Qc4 42.Kf2 Qd5-+) 36...fe6 37.Qe6 Kh8 (37...Kh8 38.f3 Qg1 39.Kc4 Qf1 40.Kb3 Qb5 41.Kc3 Re8-+) 0–1. Dalaud,Dorian (1760) – Le Marec,Simon (2210), 6th Sautron France, Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.Bb5 Bd7 7.Bd3 Ne7 8.0-0 Ng6 9.Be4 Nc6 (9...Bc6 10.Re1=) 10.b5+= Nce5 11.Ba8 Qa8 12.Ne5 Ne5 13.a4 Bd6 14.d3 0-0 15.Na3 Bc7 16.Bf4 (16.Qh5!?=) 16...Nf3=+ 17.Qf3 Qf3 18.gf3 Bf4 19.Nc4 Rb8 20.Kg2 Bc7 21.Rfe1 f6 22.h4 Kf7 23.Rg1 e5 24.h5 f5 (24...Be6 25.Rae1=+) 25.Kf1 (25.Rae1 Re8=+) 25...Re8=+ 26.Ke2 Kf6 27.a5 (better 27.Rae1!?=+) 27...ba5-/+ 28.Rgb1 Re6 (28...Rb8!? 29.Na5 Bb5-/+) 29.Na5=+ Bb6 30.Nc4 Be8 31.h6 gh6 32.Nb6 ab6 (worse 32...Rb6 33.Ra7 Rb5 34.Rb5 Bb5 35.f4 ef4 36.Rh7 f3 37.Kd2+/-) 33.f4 e4 34.Kd2 h5 35.Ra7 h6 36.Rg1 Bb5 37.Rag7 (37.Rg8 Re7 38.Re7 Ke7=+) 37...Be8-/+ 38.Rh7 Bg6 (38...ed3 39.Kd3 Bb5 40.c4 dc3 41.Kc3=+) 39.Rh6=+ Kf7 40.Rg5 The isolani on h5 becomes a target 40...Rf6 41.Rh8 ed3 42.cd3 Rd6 43.Rb8 Kf6 44.Rg1 Bf7 45.Rb1 h4 (45...Kg7!?=+) 46.R8b6+= Rb6 47.Rb6 Kg7 48.f3 c4 49.dc4 Bc4 50.Ke1 h3 51.Kf2 h2 52.Rb1 Kf7 53.Rh1 Ke6 54.Rh2 Bb5 (54...Bb3 55.Ke1 d3 56.Rh6 Ke7 57.Kd2+/-) 55.Rh7 (55.Ke1 Kd6+-) 55...Kd6 (55...Ba4!?+/-) 56.Ra7 (56.Ke1 Bc4+-) 56...Bc6 (56...Kd5 57.Ke1+-) 57.Ra5 Bd5 58.Ra1 Bc4 59.Re1 d3 60.Ke3 Bd5 61.Rg1 Bc4 62.Rg6 Ke7 63.Rh6 Bd5 64.Ra6 d2 65.Ra1 Kd6 66.Rf1 Kc5 67.Rd1 Bb3 68.Rd2 Bd5 69.Rg2 Kd6 70.Re2 Bc4 71.Rh2 Bd5 72.Rh6 Ke7 73.Ra6 Bc4 74.Ra5 Kf6 75.Rc5 Bb3 76.Rc6 Ke7 (76...Kg7 77.Rd6 Kf7 78.Kd4+-) 77.Kd4 Bd1 78.Rc3 (better 78.Ke5!? Bf3 79.Re6 Kf7 80.Kf5 Bd5+-) 78...Kf6 79.Rd3 Ba4 80.Ra3 Bb5 81.Kc5 (81.Kd5 Bf1+-) 81...Be2 82.Kd4 Bb5 83.Rb3 Be2 (83...Bd7 84.Rb6 Be6 85.Ra6+-) 84.Ke3 (84.Rb6 Kf7 85.Ke5 Bd3+-) 84...Bc4 85.Rb6 Kf7 86.Kd4 Be2 87.Ke5 1-0. sperling (2345) - marekt (2230), gameknot.com, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.c3 dc3 7.Nc3 cb4 8.ab4=.

6.c3 d3 7.Qa4+= Qd7 8.Qd7 Nd7 9.Bd3 Bb7 10.Be2 (10.Bb5 Bf3 11.gf3 a6 12.Bd7 Kd7 13.bc5 bc5+=) 10...Ne7 (10...Bf3!? 11.Bf3 Rc8=) 11.d4 cd4 12.cd4 Nd5 13.Be3 (13.0-0 Be7+-) 13...Be7+= 14.Kd2 0-0 (14...a5 15.b5+=) 15.Rc1 (15.Nc3 a5 16.Nd5 Bd5+-) 15...f6 (15...a5 16.Bb5 Rfd8 17.Bd7 Rd7 18.b5+=) 16.ef6 (16.Bb5 Rad8+-) 16...N7f6 (16...Bf6 17.Nc3+-) 17.Nc3 Rad8 (17...a5 18.b5+-) 18.Nd5 Nd5 19.Ke1 Bd6 20.Bg5 Ra8 21.h3 (21.b5 Nf4 22.Bf4 Rf4+-) 21...h6 (21...Bf4 22.Rc2+-) 22.Bd2 Nf4 (22...Rad8 23.g3+-) 23.Bf4 Rf4 24.Rc3 Re8 (24...a5 25.b5+-) 25.g3 Rf5 26.Nh4 Rf6 27.Bf3 (better 27.Bh5 Rc8 28.Rac1 Rc3 29.Rc3+-) 27...g5? (better 27...e5!? 28.Re3 e4+-) 28.Bb7+- gh4 29.Ra2 (29.g4 a5 30.ba5 ba5+-) 29...hg3 30.fg3 Ref8 (30...Kf7 31.Be4+-) 31.Re2 Rf1 (31...a5 32.b5+-) 32.Kd2+- R1f2 33.Rce3 Re2 34.Ke2 Kf7 35.Ba6 (35.b5 Kf6+-) 35...Kf6 36.Bc4 Re8 (36...e5 37.b5+-) 37.Rf3 Ke7 38.Re3 (38.b5 e5 39.Rf7 Kd8+-) 38...Kf6 39.b5 (39.Bb5 Rg8 40.g4 a5+-) 39...Re7 (39...e5 40.Kd2+-) 40.a4 (40.Rf3 Kg7+-) 40...e5 41.Rf3 Kg7 (41...Kg5 42.Ke3+-) 42.d5 (42.de5!? Be5 43.Kd3+-) 42...e4+= 43.Rf1 (43.Rc3 Kf6 44.Bb3 Ke5+=) 43...Rc7= 44.Rc1 (44.Bb3 Rc3 45.Bd1 Bg3=) 44...Kf6 45.g4 Ke5 46.Rc2 (46.Ke3 Rf7 47.Rf1 Rf1 48.Bf1 Bc5 (worse 48...Kd5 49.Bg2+=) 49.Kd2 Kd5=+) 46...Rf7 47.h4 (47.Ke1 Rf3=+) 47...Rf4 48.g5 Rh4 49.gh6 Rh6 50.Kd1 (50.Rd2 Rh1=+) 50...Rh1 51.Kd2 (51.Ke2 Rh3-/+) 51...Kd4 52.Bb3 Bf4 (52...Rh3 53.Rc4 Ke5 54.Kc2-/+) 53.Ke2 Rh2 (53...Rh3 54.Rc4 Ke5 55.Bc2 Rh2 56.Kf1-/+) 54.Ke1 (54.Kd1 Rh3 55.Rf2 Rb3 56.Rf4 Kd3-+ (56...Kd5?! 57.Rf7=+)) 54...Rh3 55.Rc4 Kd3 (55...Ke5 56.Bc2 Rh1 57.Ke2 Rh2 58.Kf1-/+) 56.Rc6 Be5 (56...Rh1 57.Kf2-/+) 57.d6 (57.Bc4 Kd4-/+) 57...Ke3 (57...Rh1 58.Kf2 e3 59.Kf3 Rf1 60.Kg2 Rf2 61.Kg1-/+) 58.Kf1 (58.Kd1 Rh1 59.Kc2 Rh2 60.Kc1 Rd2-/+) 58...Rh1 59.Kg2 Rh2 60.Kf1 Rd2 (60...Rf2 61.Ke1-/+) 61.Bc2 (61.Rc7 Rf2 62.Kg1 Bh2 (62...Bd6?! 63.Rc3 Kd4 64.Rc4 Ke3 65.Re4 Kf3 66.Bd1 Ke4 67.Kf2=) 63.Kh1 Bd6 64.Ra7 Kd2-+) 61...Bd6-+ 62.Rc4 Rf2 63.Ke1 Rf4 (63...Bb4! 64.Rb4 Rc2 65.Rb3 Kf4 66.Rh3-+) 64.Rc3-/+ Kd4 65.Rc8 (65.Rg3 e3 66.Rg2 Kc3-+) 65...Rh4 66.Rd8? (better 66.Bb3-+) 66...Ke3 67.Kf1 (67.Be4 Bg3 68.Kd1 Re4 69.Kc2 Ra4 70.Rd3 Kf4 71.Kb3-+) 67...Rh1 (better 67...Rf4 68.Kg2 Bc7-+) 68.Kg2 Rh2 69.Kf1 (69.Kg1 Rd2 (worse 69...Rc2 70.Rd6 Ra2 71.Rd1-+) 70.Rd6 Rd6 (70...Rc2?! 71.Rd7-+) 71.Be4 Ke4-+) 69...Rc2 (better 69...Rf2 70.Kg1 Bh2 71.Kh1 Rc2-+) 70.Rd6 Ra2 71.Rc6 (71.Rh6 Ra1 72.Kg2 Ra4 73.Rh3 Ke2-+) 71...Ra4 72.Rc3 (72.Rc2 Ra1 73.Kg2 Kd3-+) 72...Kf4 (72...Kd2 73.Rc8 Ra1 74.Kg2-+) 73.Rc7 (73.Ke2 Ra2 74.Kd1 Rb2-+) 73...Kf3 74.Rf7 Ke3 75.Rd7 (75.Rc7 Ra1 76.Kg2 Ke2-+) 75...Rb4 (75...Ra5 76.Kg2-+) 76.Ra7 (76.Rd5 Rb1 77.Kg2 Ke2-+) 76...Rb5 77.Ra3 Kf4 78.Ke2 (78.Ke1 Rb2-+) 78...Rb2 79.Kd1 b5 (79...e3 80.Ra8-+) 80.Kc1 (80.Ra8 e3-+) 80...b4 (80...Rg2 81.Ra8-+) 81.Ra8 (81.Rh3 Ra2 82.Rb3 Ra4-+) 81...Rb3 82.Kd2 (82.Rf8 Ke3 83.Re8 Rd3-+) 82...Rd3 83.Ke2 b3 84.Rb8 (84.Rc8 Rg3 85.Rf8 Ke5-+) 84...Rh3 85.Kf1 (85.Rf8 Ke5 86.Re8 Kd4 87.Rd8 Kc3 88.Rc8 Kb2-+) 85...Rh1 86.Ke2 (86.Kg2 Rb1-+) 86...b2! 87.Rf8 (87.Rb2 Rh2 Double attack (87...Rh2 Decoy)) 87...Ke5 88.Re8 Kf6 (88...Kf6 89.Rb8 b1R 90.Rb1 Rb1-+) 0–1. Steiner,Stefan (2225) – Perhinig,Robert (2210), 2. Bundesliga Mitte, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.a3 Qd7

6.c3 Ba6 7.Ba6 Na6 8.0-0 Ne7 9.d3 Nf5 10.Bb2 (10.Bg5 Rc8=) 10...h5 (10...Be7 11.Bc1=) 11.Nbd2 ½–½. Wohlfart,Paulus Dr (2225) – Senk,Christian (2155), Einhausen GER, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Ba6 7.Ba6 Na6 8.0-0 Nh6 9.d4 (9.d3 Nf5=) 9...Nf5 10.Qe2 (10.Nbd2 Be7=) 10...Nc7 11.Be3 Be7 12.Nbd2 0-0 (12...Qb5 13.c4 dc4 14.bc5=) 13.dc5 Ne3 14.Qe3 bc5 15.Nb3 c4 16.Nbd4 a5 17.h3 Rfb8 18.Nh2 (18.Rfb1 Qa4=) 18...ab4 19.ab4 Nb5 20.Nb5 Qb5 21.Nf3 Qb7 22.Nd4 Bd8 23.f4 Bb6 24.Kh2 g6 (24...Ra1 25.Ra1 Ra8 26.Ra8 Qa8 27.f5=) 25.Rad1 Bd4 (25...Ra3 26.Ra1 Rba8 27.Ra3 Ra3 28.Rd1=) 26.Rd4 (26.Qd4 Ra3=) 26...Ra3 27.f5 (27.Rb1!?=) 27...Qb4!-/+ (27...gf5?! 28.Rf3 Kf8 29.Qh6 Ke8 30.Rg3=) 28.Rb1?? (28.cb4 Rb3 Double attack (28...Re3 Pinning; 28...Re3 Deflection; 28...Rb3 Decoy)) 28...Qb1-+ 29.f6 Qf5 (29...Qb4 30.Rd3 Qf8-+ (30...cd3?! 31.cb4 Kh8 32.Qh6-/+)) 30.Qh6= Qe5 31.Rf4 Qf6 32.Rf6 Rc3 33.Rf2 (better 33.Rf7! Kf7 34.Qf4 Kg7 35.Qc7 Kf6 36.Qb8+-) 33...Rcb3=+ 34.Qf4 R3b7 35.Qf6 Rc8 36.h4 h5 37.Kg3 c3 38.Rc2 Rbc7 39.Kf4 (39.Kf2 Rc4=+) 39...Kh7 (better 39...d4!? 40.Ke4 Rd7=+) 40.g4= Rc4 41.Ke5 1–0. Witte,M – Schirm,Friedmar, RLN, 1983. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Ba6 7.Ba6 Na6 8.d4 Rc8 9.0-0 Ne7 10.dc5 bc5 11.Nbd2 (11.Qe2 Qa4 12.Bb2 Nf5+=) 11...Nf5 (11...Ng6 12.Nb3+=) 12.Nb3 Be7 (worse 12...cb4 13.ab4 Nb8 14.Qd3+-) 13.Qe2 c4 14.Nbd4 Nd4 15.Nd4 (worse 15.cd4 h6=+) 15...0-0 16.a4 White prepares b5 (16.f4 g6+=) 16...f6 17.Bf4 Nb8 18.b5 Bc5 19.ef6 (19.Rad1 a6 20.h4 Rce8 21.ef6 e5 22.f7 Rf7 23.Be5 Rfe7+=) 19...Bd4 20.cd4 gf6? (better 20...Rf6 21.Be5 Rg6=) 21.Rfe1+- Rfe8 22.Ra3 Kh8 (22...a6 23.Bh6 Kh8 24.Rg3+-) 23.Rg3 (23.Re3 Kg7+-) 23...Re7 24.h4 (24.Rf3 Rce8+-) 24...a6 25.h5 (25.Qf3 Rf7+-) 25...ab5 (25...Rce8 26.Qf3 Rf7 27.Qg4+-) 26.ab5 Qb5 (better 26...Rce8!? 27.h6 e5 28.de5 Qf5+-) 27.Bd6+- Rf7 28.Qe6 Qd7 29.Qd5 c3? (29...Na6 30.h6 Nb4 31.Qh5+-) 30.Rc1 (30.Qb3 c2 31.Rc1 Rd8 32.Rc2 Qb7+-) 30...c2?! (30...Rg7 31.Rg7 (31.Rcc3?! Rc3 32.Rc3 Rg5+-; 31.Rgc3?! Rd8+-) 31...Kg7 32.Qf3+-) 31.Qb3 Na6 (31...Nc6 32.Rc2 Rg7 33.Rg7 Kg7 34.h6 Kh6+-) 32.h6 Rc6 33.Ba3 Qb7 (33...Nc7 34.d5 Ra6 35.Rc2+-) 34.d5 Qb3 (34...Rc8 35.Rc2 Re8 36.Qa4+-) 35.Rb3 Rc8 (35...Rc4 36.Rb6 Ra7 37.Rf6+-) 36.Rb6 Ra7 (36...Nb8 37.Rc2! Rd8 38.Re6+-) 37.Rf6 Raa8 38.Rc6 Rc6 39.dc6 Nc7 40.Bb2 (40.Bd6!? Nb5 41.Be5 Kg8 42.Rc2 Rc8+-) 40...Kg8 41.Rc2 Rc8 (41...Kf7 42.Rd2 Ne8 43.Be5+-) 42.Be5 Kf7 (42...Ne6 43.f4+-) 43.Rd2 (43.Bc7 Rc7 44.Kh2 Ke6+-) 43...Ke6 (43...Na6 44.c7! Ke8 45.Rd4 Nc7 46.Rc4+-) 44.Bc7 Rc7 45.Rd7! Rd7 (45...Rc6 46.Rh7 Kf5+-) 46.cd7 Kd7 47.f4 Ke6 48.g4 Kf6 49.Kf2 Kg6 50.g5 Kf7 51.Kf3 Kg6 (51...Ke7 52.Ke4 Ke6 53.f5 Kf7 54.Ke5 Ke8 55.Ke6 Kd8 56.g6 Kc7 57.gh7 Kc6 58.h8Q Kb5 59.Kd5 Ka6 60.Qb2 Ka5 61.Kc5 Ka4 62.Qb4) 52.Ke4 Kf7 53.Ke5 Kg8 (53...Ke8 54.g6! Kd7 55.Kd5 Kd8 56.gh7 Kc7 57.h8Q Kb7 58.h7 Kc7 59.Qa8 Kb6 60.h8Q Kb5 61.Qb2) 54.f5 Kf7 (54...Kf8 55.g6 hg6 56.f6 Ke8 57.h7 Kd7 58.h8Q Kc6 59.f7 g5 60.f8Q Kb5 61.Qb8 Ka4 62.Qb6 g4 63.Qa8) 55.g6! hg6 56.f6 (56.f6 Ke8 57.h7 Kd7 58.h8Q Kc6 59.f7 Kb5 60.f8Q Kc4 61.Qhg8 Kb5 62.Qb8 Kc5 63.Qd5) 1–0. Zherebukh,Yaroslav (2370) – Galburd,Yan (2110), EU–ChB14, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Ba6 7.Ba6 Na6 8.d4 Rc8 9.0-0 Ne7 10.Ng5 h6 11.Qh5 (11.Nf3 Nf5=) 11...g6 12.Qh3 Nb8 (12...Qa4 13.bc5 bc5 14.Nf3=+) 13.Nf3 Bg7 (13...Nf5 14.Bg5=) 14.Rd1 (14.Qg4 Nbc6=) 14...cd4 (14...Qa4 15.Re1=) 15.cd4 (worse 15.Rd4 Nbc6 16.Rd3 Ne5 (worse 16...Be5 17.b5+/-) 17.Ne5 Be5-+) 15...Nf5 16.g4 Ne7 17.Qf1 h5 18.h3 (18.g5!?=) 18...hg4=+ 19.hg4 a6 20.a4 (20.Bg5=+) 20...b5 (20...Nec6 21.Bd2=+) 21.Na3 (21.ab5 ab5 22.Na3=) 21...Rc4?? (better 21...ba4 22.b5 f5 23.ef6 Bf6=+) 22.Nc4+/- dc4 23.ab5 ab5 24.Bg5 (24.Qe1 Qd5 25.Kg2 Nec6+=) 24...Qb7 25.Qg2 Nd5 26.Nd2 Bf8 27.Ne4 Nc6? (better 27...Nd7 28.Nf6 N7f6 29.Bf6 Rh7+-) 28.Nf6+- Nf6 29.Bf6 (29.ef6 Bb4 30.d5 ed5 31.Rd5 0-0+/-) 29...Rh7 30.d5 (30.Ra7 Qc8 31.Rda1 Na7 32.Ra7 Bb4+-) 30...Nb4 (30...Ne7 31.de6 Qg2 32.Kg2 fe6 33.Ra8 Kf7 34.Rdd8+-) 31.d6 (better 31.de6!? Qg2 32.Kg2 fe6 33.Rd8 Kf7 34.Ra7 Kg8 35.Rh7 Kh7 36.Rf8 g5 37.Rh8 Kg6 38.Rg8 Kf7 39.Rg7 Kf8+-) 31...Nd5 32.Ra5 Bg7 (32...Bd6 33.ed6 Kd7+-) 33.Rda1 (better 33.Bg7 Rg7 34.Rda1+-) 33...Bf6 34.Ra8?? (34.ef6 Qb6 35.Ra8 Kd7 36.R1a7 Kd6 37.Qg3 e5 38.Ra6 Qa6 39.Ra6 Kc5 40.Qa3 b4 41.Ra5 Kd6 42.Qf3 e4 43.Qe4 Rh5 44.gh5 Kc7 45.Qd5 gh5 46.Ra7 Kb6 47.Rb7 Ka6 48.Qb5) 34...Bd8-+ 35.R1a7 Qb6 36.Qf3? (36.Qe4 c3-+) 36...c3 (36...Qd4 37.Rb7 Qe5 38.Kf1-+) 37.Ra6? (better 37.Qd3-+) 37...c2 38.Rb6 (38.Qa3 Rh3! 39.d7 Kd7 40.Qh3 c1Q 41.Qf1 Qf1 42.Kf1-+) 38…c1Q (38...c1Q 39.Qd1 Qd1 40.Kg2 Qg4 41.Kf1 Rh1) 0-1. Devallee,J (2220) - Barsegyan,H (2470), TCh-FRA Top, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

5.a3 Ne7=

6.Bb2 Nec6 7.b5 Na5 8.d4 Bb7 9.Nbd2 Be7 10.Bc3 (10.dc5 Bc5 11.Bd3 Be7=) 10...Nd7=+ 11.Be2 Rc8 Black plans c4 12.Ba5 (12.Nb3 Nc4=+) 12...ba5 13.c3 0-0 14.0-0 Qb6 15.Qa4 c4 16.Rfb1 (16.Bd1 f6 17.ef6 Rf6=+ (17...Nf6?! 18.Ne5+=)) 16...Rc7 (16...f6 17.ef6 Bf6 18.Qc2-/+) 17.Qc2 a6 (17...f6!? 18.ef6 Bf6=+) 18.a4= ab5 19.ab5 Qa7 20.h4 h6 21.Nf1 (21.Qa2 Ra8 22.Bd1 Bc8=) 21...Nb6=+ 22.Ng3 a4 23.Qd2 (23.Nh5=+) 23...Qb8 (better 23...Qa5!?-/+) 24.Bd1 Bc8 (24...a3 25.Nh5=) 25.Ba4 (25.Nh5 Qa8=) 25...Na4 26.Ra4 Rb7 27.Ra5 Bd8 28.Raa1 Rb5 29.Qc2 Bd7 30.h5 Be7 31.Nd2 Qb7 32.Rb5 Qb5 33.Rb1 Qa4 34.Qa4 Ba4 35.Rb7 Re8 36.Ne2 Bc2 37.g4 (37.f3 g6=+) 37...Bd3-/+ 38.Nf4? (better 38.Nc1!?-/+) 38...Bg5-+ 39.Nd3 Bd2 (39...cd3?! 40.Rb2-/+) 40.Nc5? (better 40.Nb4 Bc3 41.Nc6-+) 40…Bc3 0–1. Al Modiahki,Mohamad (2545) – Meier,Georg (2630), Dubai UAE, World Blitz Ch, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 a5 7.bc5 bc5 8.d4 Ba6 9.Ba6 Ra6 10.0-0 Nec6 11.Be3 c4 12.a4 Nd7 13.Ng5 Be7 14.Qh5 Bg5 15.Bg5 (worse 15.Qg5 Qg5 16.Bg5 Rb6=+) 15...Qc7 16.Na3 Na7 (16...0-0 17.Nb5 Qb8 18.Qg4+=) 17.Bc1 (17.Nb5 Nb5 18.ab5 Ra8+=) 17...Rb6 (17...0-0 18.Qg4 f5 19.Qg3=) 18.Nb5 (18.Qg4!? Rg8 19.Qh3=) 18...Nb5=+ 19.ab5 0-0 (19...Rb5 20.Ba3 Qd8 21.Qg4=+) 20.Ba3 (20.Ra5 Rfb8=) 20...Ra8=+ 21.f4 f5 (21...Rb5!? 22.f5 ef5 23.Rf5 g6=+) 22.Bd6+= Qd8 23.Rfb1 ½–½. Tosic,N (2210) – Mihic,B (2390), Serbia Cup Zlatibor SRB, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.c3 Nbc6 7.d4 Bd7 8.Bd3 Qc7 9.0-0 (worse 9.dc5 Ne5 10.Ne5 Qe5 11.Qe2 Qe2 12.Ke2 bc5 13.bc5 Rc8=+) 9...c4 10.Bc2 f6 11.Bf4 f5 12.h4 (12.Be3 a5 13.b5 Nd8+=) 12...Nd8 13.a4 a6 14.Nbd2 Nf7 15.Ng5 Ng5 16.Bg5 0-0-0 17.Nf3 (17.Qe2 h6 18.Be3 g6+=) 17...h6 18.Bf4 Be8 19.Ne1 (19.Ra2 Bh5 20.Be3 Ng6=) 19...Rg8 (19...g5 20.hg5 Ng6 21.Be3=) 20.Qd2 Bh5 21.Bd1 Bd1 22.Rd1 Ng6 23.Bg3 Qf7 24.f4 Be7 25.Nf3 Nf8 26.Kf2 Nh7 27.Rh1 g5 28.hg5 hg5 29.fg5 (29.Ke1!?=+) 29...Ng5-/+ 30.Ng5 Rg5 (30...Bg5 31.Bf4 Bf4 32.Qf4-/+) 31.Bh4=+ Rg6 32.Be7 Rdg8 33.Rh2 Qe7 34.Rdh1 f4 (34...Rg3!?-/+) 35.Qf4= Qg7 36.Ke1 Rg2 37.Rg2 (37.Rf1!?=+) 37...Qg2-/+ 38.Rf1 Qc2 39.Qd2 Qa4 40.Kf2 (40.Qc1 Qa2 41.Qd1 Qa3-+) 40...Kc7 41.Rg1 Rh8 42.Rg7 Kc6 43.Kg3? (better 43.Rg6-+) 43...Qa1 44.Qe3 (44.Rg6 Qb1 45.Re6 Kb5 46.Qg5 Qg1 47.Kf4 Qf1 48.Kg4 Qh3 49.Kf4 Qe6 50.Qf6-+) 44...Qf1 (44...Qf1 45.Qe4 de4 46.b5 Kb5 47.Rh7 Qf3 48.Kh4 Rh7 49.Kg5 Qf5) 0–1. Kraft,Volker (2375) – Wagner,Anselm (2390), Oberliga Bayern9798, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 d4 7.Qa4 Bd7 8.b5 dc3 9.dc3 a6=.

6.c3 d4 7.bc5 dc3 (7...bc5 8.cd4 cd4 9.Bd3=) 8.Nc3+= bc5 9.Qc2 (9.Rb1 Bd7+=) 9...Bb7 10.Rb1 (10.Ne4 Ng6+=) 10...Bc6 (10...Bf3 11.gf3 Nd7 12.Qa4=) 11.Ne4+= Nf5 12.Nc5 (12.Bb2 Qd5 13.Neg5 Nd4 14.Bd4 cd4+=) 12...Nd4 (12...Bf3 13.gf3 Nd4 14.Qe4=) 13.Nd4 Qd4 14.Na6 Qe5 15.Be2 Kd7 (15...Bg2 16.Qc8 Ke7 17.Nb8 Bh1 18.Rb7 Kf6 19.Bb2 Qb2 20.Rb2+-) 16.d4 Qd6 17.Nc5 Ke8 18.0-0 Be7 (18...Nd7 19.Ne4 Qc7 20.Bf4 Qf4 21.Qc6+-) 19.Rd1 e5 (19...Bd5!?+-) 20.Be3 (20.Ne4 Qd5 21.Bf3 Qd7 22.Nf6 Bf6 23.Rb8 Rb8 24.Bc6 ed4 25.Re1 Kf8 26.Bd7 Kg8+-) 20...Nd7 (better 20...ed4 21.Bd4 Qg6 22.Qg6 hg6 23.Bg7 Rh7+-) 21.de5 Qg6 22.Qg6 hg6 (22...fg6?? 23.Nd7 Bd7 24.Bf3+-) 23.Nd7 Bd7 24.Rb7 (24.Bf3 Rc8 25.Rb7 Be6 26.Ra7 Bc5 27.Bc5 Rc5 28.Ra8 Bc8+-) 24...Be6 (24...Bc6 25.Rc7 Ba4+-) 25.Re7! (25.Re7 Kf8 26.Ra7 Ra7 27.Ba7+-) 1–0. Ossa,Orlando (2250) – Mosquera,Miguel (2410), Colombian Championship, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 d4 7.cd4 cd4 (7...cb4 8.ab4 Nec6 9.b5 Nd4 10.Ra4 Nf3 11.Qf3+/-) 8.Bb2 Ng6 9.Nd4 Be7 (9...a5!?+/-) 10.Bb5 Bd7 11.Bd7 (11.Qf3!? Bb5 12.Qa8 Ne5 13.Nb5 Nd3 14.Kf1 Nb2 15.Qa7 Nc6+/-) 11...Qd7 (11...Nd7 12.Nc6 Qc7 13.Ne7 Nge5 14.0-0 Ke7 15.f4+=) 12.Qf3 Qd5 13.Qd5 ed5 14.0-0 0-0 (14...Nf4 15.Nc3 Kd7 16.Rac1+/-) 15.Nf5+- Bg5 16.g3 a5 17.b5 Nd7 (better 17...Ne7 18.Nd4 Ng6+-) 18.f4 Be7 19.Nc3 (19.Ne7?! Ne7 20.f5 Nc5+-) 19...d4 20.Nd5 Bc5 21.Bd4 (21.Nd4?! Rad8 22.Ne3 Nde5+=) 21...Rfd8 (21...Bd4 22.Nd4 Nde5 23.Nb6+- (23.fe5?! Rad8+-)) 22.Bc5 Nc5 23.Nfe3 Nd3 (23...Nb3 24.Rad1 (worse 24.Nb6 Rab8 25.Ned5 Na1 26.Ra1 Kf8+-) 24...Nd4 25.a4+-) 24.Nb6 Rab8 25.Ned5 Kf8 26.Rf3 Nc5 27.Rc1 (27.a4 Nd7 28.Nc4 Nde5 29.fe5 Rd5+-) 27...Nd7 28.Rc6 Nb6 29.Rb6 Rb6 30.Nb6 Rd2 31.Nc4 Rd1 32.Kf2 a4 33.b6 Rb1 34.Rd3 Ke7 35.f5 (35.Ke3!? h5+-) 35...Nf8 36.Ke3 Nd7 37.Rd4 Nb6 (37...h6 38.Ke4+-) 38.Nb6 Rb6 39.Ra4 g5 40.Ra7 Ke8 41.a4 (41.Ra8!? Ke7 42.f6 Kd7+-) 41...h5 (41...Rh6 42.Ra8 Kd7 43.a5 Rh2 44.e6 fe6 45.f6+-) 42.a5 Rb2 (42...Rb3 43.Kd4+-) 43.a6 Rh2 44.Ra8 Ke7 45.a7 Ra2 46.f6 Kd7 (46...Ke6 47.Re8 Kf5 48.a8Q Ra8 49.Ra8 Ke5 50.Rh8 Kf6 51.Ke4+-) 47.Rf8 (47.Rf8 Ke6 48.a8Q Ra8 49.Ra8 Ke5 50.Rh8+-) 1-0. Jun,Rudolf Jr (2200) - Chubar,V (1925), 30th Czech Rapid G1, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.c3 Qd7 7.d4 cd4 8.cd4 Ba6 9.Ba6 Na6 10.0-0 Ng6 11.Qd3 b5 12.Nc3 Rb8 13.h4 h5 14.g3 Be7 15.Ng5 Bd8 16.Rb1 Ne7 17.a4 Nc7 18.ab5 Nb5 19.Na4 Nf5 20.Nc5 Qe7 (20...Qc6 21.Nf3=) 21.Nf3+= 0-0 22.Bg5 Qe8 23.Bf4 (23.Bd8 Qd8 24.Ra1 Qe8+=) 23...Bb6 24.Kh2 Bc5 25.dc5 Qc6 26.Rg1 a5 27.g4 (better 27.ba5 Qc5 28.Kg2=) 27...hg4-/+ 28.Rg4 ab4 29.Rbg1 (29.Be3 d4 (worse 29...Ne3 30.Rg7 Kg7 31.Rg1 Ng4 32.Rg4 Kh6 33.Qe3 Kh7 34.Qg5 Qc5 35.Qg7) 30.Nd4 Nbd4 (30...Nfd4 31.Bd4 Nd4 32.Qd4+-) 31.Bd4 Rfd8-+) 29...Qc5 (29...Rfc8 30.Bh6 g6-/+ (30...Nh6? 31.Rg7 Kf8 32.Qh7+-; 30...Qc5 31.Bg7 Qf2 32.R1g2 Qg2 33.Rg2+-)) 30.Qf1? (better 30.Bh6 Rfd8 31.Rg7 Kf8 32.Rg8 Ke7 33.Bg5 Kd7 34.Rd8 Rd8 35.Bd8 Kd8 36.Qd2+=) 30...Rfc8-+ 31.h5 Kf8 32.Nh4 Nh4 33.Rh4 Nd4 34.Qg2 Nf5 35.h6 (35.Rg4 Ke8-+) 35...gh6 (better 35...Nh4!? 36.Qg7 Ke8 37.Qg8 Qf8 38.Qf8 Kf8 39.h7 Nf3 40.Kg3-+) 36.Bh6 Ke7 37.Rh3 (37.Bg5 Kd7 38.Rh3 Qd4-+) 37...Rg8! 38.Bg5 (38.Qg8 Qf2 Deflection) 38...Kd7 39.Qf3 Rh8 40.Rc1 Qd4 (40...Rh3 41.Kh3 Rh42.Kg4 Qd4 43.Qf4 Qb2-+) 41.Bf4 (41.Qe2-+) 41...Rh3 42.Kh3 Qe4 (42...Rh8 43.Kg4 Rh4 44.Kg5 Qb6 45.Qd5 ed5 46.Rc7 Qc7 47.Kf6 Qc6 48.e6 Qe6 49.Kg5 Qg6) 43.Qe4 de4 44.Rd1 Kc6 45.Rc1 Kd5 46.Rd1 Kc6 (46...Kc4 47.Bc1-+) 47.Rc1 Kb6 (47...Kb5 48.Rc7-+) 48.Rc4 Kb5 (48...b3!? 49.Re4 b2 50.Re1-+) 49.Re4 Ne7 50.Kg3 Nd5 51.Bc1 Rc8 52.Bb2 Rc2 53.Bd4 (53.Ba1 b3-+) 53...b3 54.Re1 Kc4 55.Ba1 b2 56.Bb2 Rb2 57.Rc1 (57.f3 Nc3 58.f4 Kd4-+) 57...Kd4 58.f4 (58.Re1 Rb3 59.Kg4 Rb8-+) 58...Ke4 59.Re1 Kf5 60.Rf1 Rb3 61.Kh2 Nf4 0–1. Zhong,Kevin – Bouchard,Jean Marc (1900), Pere Noel Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 Nf5 7.d4 c4 8.a4 a6 9.h4 Be7 10.h5 h6 11.g4 Nh4 12.Nh4 Bh4 13.Bg2 Bd7 14.Na3 (14.Nd2 Be7=) 14...b5 (14...Nc6 15.Qf3=+) 15.Bd2 0-0 16.a5 f5 (16...Nc6 17.Qe2=) 17.gf5+= Rf5 18.Be3 Bg5 19.Bh3 Rf7 20.Qg4 Be3 21.fe3 Nc6 22.Nc2 Rf5 23.0-0-0 Rg5 24.Qe2 Qe7 25.Rdf1 Rf8 26.Rf8 Qf8 27.Rf1 Qe8 28.Bg4 Ne7 29.Rf4 (29.Ne1 g6+-) 29...Nf5 30.Qf3 g6 31.Kd2 (31.hg6 Qg6 32.e4 de4 33.Qe4 Kf8+-) 31...Ng7 32.hg6 Qg6 33.Qe2 h5 34.Bf3 Nf5 (34...Rg1 35.Rf6 Qg5 36.Ne1+=) 35.Ne1 Ng3 36.Qf2 Be8 (36...Rf5 37.Rf5 Nf5 38.Kc1+-) 37.Rf6 (37.Kc1 Qg7+-) 37...Qb1 38.Bg2 (better 38.Re6 Bg6 39.Rg6 Rg6 40.Bd5 Kh7 41.Qf7 Rg7 42.Qf6+=) 38...Qb2=+ 39.Kd1 Qb1 (39...Qf2 40.Rf2 Bg6 41.Nf3=+) 40.Kd2 Bg6 41.Rf8 Kh7 42.Rh8 Kh8 43.Qf8 Kh7 44.Qe7 Bf7! 45.Qg5 (45.Qf7 Rg7 Decoy) 45...Qb2 46.Nc2 Ne2 47.Ke2 Qc2 48.Kf3 Qc3 49.Qe7 Kg8 50.Qd8 Kg7 51.Qf6 Kg8 52.Bh3 (52.Qd8 Kh7 53.Qe7 Kg8 54.Qd8=) 52...Qe1 (52...Qd3!?=+) 53.Qd8= Kh7 54.Qf6 Qh1 55.Kf2 Qh2 56.Bg2 Kg8 ½–½. Lengyel,Laszlo (2225) – Schrancz,Istvan (2255), HUN–chT2, 1993. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 Nf5 7.d4 Nc6 8.Bb5 Bd7 9.Qa4 (9.Bd3 cd4 10.b5 Na5 11.cd4 Nh4 12.Nh4 Qh4=) 9...Qc7 10.Be3 (10.g4 Nfe7=+) 10...Be7 11.Nbd2 0-0 12.0-0 a6 13.Bc6 (13.Ba6 Ncd4 Decoy) 13...Bc6 14.Qb3 Bb5 15.Rfc1 (15.Rfe1 cd4 16.cd4 Rfc8=+) 15...Ne3 16.fe3 Rfc8 17.a4 Bd3 18.bc5 bc5 19.c4 dc4 20.Nc4 Be4 21.Nb6 Rab8 22.a5 Qb7 23.Qd1 Rd8 24.Qf1 (24.Rc4!?=+) 24...Bf3-/+ 25.Qf3 Qf3 26.gf3 cd4 27.e4? (27.Rc7!? Bb4 28.ed4 Rd4 29.Ra7-/+) 27...Bg5 (27...d3 28.Rc6-+) 28.Rc6 d3 29.Kf1 (29.Rd1-+) 29...Bf4 30.h3 Be5 31.Rd1 h6 (31...Bf4 32.Nc4 Rd4 33.Nb2-+) 32.Nc4-/+ Bc3 (32...Bf4 33.Ra6 Rb5 34.Rb6-+) 33.Ra6 Rd4 (better 33...Kf8-/+) 34.Nb6? (better 34.Rc6!? d2 35.Ke2=) 34...Rbd8 (better 34...Ba5 35.Ra5 Rb6-+) 35.Ra7-/+ Rb4 (better 35...Kf8-/+) 36.Kf2? (better 36.Rc7 Be5 37.Rd7 Rd7 38.Nd7=+) 36...Rb2 37.Ke3? (37.Kg3 Ra2 38.Nc4-+) 37...Bd4 38.Kf4 (38.Kd3 Bb6 39.Kc3 Rd1 40.Ra8 Rd8 41.Rd8 Bd8 42.Kb2 Ba5 43.Kb3-+) 38...Bb6 (38...Rg2 39.e5 Bb6 40.Rd7 Rd7 41.Rd2 g5 42.Ke4 Bg1 43.f4 Rg3 44.Rd3 Rgd3 45.fg5 R7d4) 39.ab6 Rb6 (39...g5 40.Kg3 Rb6 41.Rd2-+) 40.Ke3 (40.Ra3 Rbd6-+) 40...Rb3 41.Rd2 Rb1 (41...g5 42.Ra4-+) 42.Rc7 (42.Kf2 Rb4-+) 42...Rh1 43.h4 Rh4 44.Rd3 Rd3 45.Kd3 Rh3 46.Ke3 h5 47.Kf4 h4 (47...f6 48.Ke3-+) 48.Kg4 Rh1 (48...Rg3 49.Kh4 Rf3 50.Kg4-+) 49.f4 g6 50.f5 (better 50.e5-+) 50...ef5 51.ef5 Kg7 52.fg6 Kg6 53.Rc6 f6 (53...Kg7 54.Rb6-+) 54.Kf3 (54.Rb6 h3-+) 54...Kg5 55.Kg2 Rd1 56.Rc3 Rd4 57.Rb3 (57.Rc8 Rd2 58.Kh3 Rd3 59.Kh2 f5-+) 57...f5 (57...Kg4 58.Rb7 h3 59.Kh2 Rd2 60.Kh1-+) 58.Ra3 (58.Kh3 Rd5-+) 58...Rg4 (58...Kg4!? 59.Ra8 h3 60.Kg1-+) 59.Kh2 Rd4 60.Kg2 Rc4 (60...Kg4 61.Ra6-+) 61.Kf2 (61.Kh3 Rc5-+) 61...Rc2 (61...Kg4 62.Ra8-+) 62.Kg1 (62.Kf3 h3-+) 62...Rc4 63.Rb3 1-0. Hrabinska,M (2235) - Juarez Flores,C (2370), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3)

6.c3 Nf5 7.d4 Be7 8.Bd3 Nc6 9.0-0 0-0 10.g4 Nh4 11.Nh4 Bh4 12.Be3 (worse 12.dc5 Ne5 13.Be3 Nd3 14.Qd3 e5-/+) 12...f6 13.f4 fe5 14.fe5 (worse 14.dc5 ef4 15.Bf4 bc5 16.bc5 Be7-/+) 14...Rf1 15.Qf1 Bg5 16.Qf2 Bd7 17.Nd2 (worse 17.dc5 Ne5 18.Be2 Be3 19.Qe3 Qc7=+) 17...Be3 18.Qe3 cd4 19.cd4 a5 20.b5 Ne7 21.Nf3 Be8 22.Ng5 Bg6 23.Rf1 h6 24.Ne6 Qd7 25.Bg6 Ng6 26.Nf4 Qg4 27.Qg3 Qg3 28.hg3 Nf4 29.Rf4 a4 30.Rf5 Rc8 31.Kf2 Rc2 32.Ke3 Rc3 33.Kf4 g5 34.Kg4 Kg7 35.Rf6 Ra3 36.Rb6 Rd3 37.Ra6 a3 38.b6 Rb3 (better 38...Rd4!? 39.Kf5 Rb4+=) 39.Kf5+- Rf3 (39...Rg3 40.Ra7 Kf8 41.b7 Rf3 42.Ke6+-) 40.Ke6 Rg3 41.Kd7 Re3 (41...g4+-) 42.b7 Rb3 43.Kc7 Rc3 44.Kb6 Rb3 45.Kc6 g4 46.Ra3!! Ra3 47.b8Q Rf3 48.e6 (48.e6 Rf6 49.Kd7+-) 1–0. Zvjaginsev,Vadim (2640) – Epishin,Vladimir (2610), RUS Cup final, 2009. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 b6 5.a3 Ne7)

6.c3 Nf5 7.d4 h5 8.Bd3 Be7 9.0-0 g5 (9...0-0!?+=) 10.dc5+- bc5 11.bc5 g4 12.Nd4 Bc5 13.Bf5 (13.Nf5 ef5 14.Nd2 Be6+-) 13...ef5 ½–½. David,Ed (2210) – Barna,A (2145), TCh–NOR Club, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 Ng6 7.Bd3 Nc6 8.Bg6 hg6 9.d4 Qd7 10.0-0 Ba6 11.Re1 Rc8 12.Be3 Be7 13.Nbd2 0-0 (13...cd4 14.cd4 g5 15.Nf1=) 14.Qb1 (14.dc5 bc5 15.Bc5 Bc5 16.bc5 Na5+=) 14...Nb8 (14...cd4 15.cd4 Bc4 16.Rc1=) 15.dc5+= bc5 16.bc5 (16.Nb3 cb4 17.cb4 Bc4+=) 16...Bc5= 17.Bc5 Rc5 18.Qb4 Qe7 19.Qg4 (19.Nb3!? Rc7 20.Nbd4=) 19...Rfc8= 20.c4 (20.Qb4 Qc7=) 20...Bc4=+ 21.Ng5 Nd7 22.Re3 Nf8 23.Qh4 f6 24.Ngf3 Ba6 25.Rae1 Rc3 26.Rc3 Rc3 27.ef6 (27.a4!?=+) 27...gf6-/+ 28.a4 e5 29.h3 Kf7 30.Qh8 (30.Nh2 Rc2 31.Nhf3 Qa3-+) 30...Qc7 (30...Qb4 31.Ne5 fe5 32.Qe5-+) 31.g4 (31.Qh4 Rc1 32.Qb4 Qc3 33.Qc3 Rc3-+) 31...e4 32.g5 Qf4 (32...ef3?! 33.gf6 (33.Qf6? Kg8 34.Qa6 Qf4-+) 33...Ne6 34.Nf3=+) 33.gf6 Qf6 (worse 33...Rf3 34.Qg7 Ke6 35.Nf3 Qf3 36.Qf8 Qf6 37.Qe8 Kd6 38.Qb8 Ke6 39.Qa7 Qg5 40.Kh1+-) 34.Qf6 Kf6 35.Re4 Rf3 36.Re8 Rd3 37.Rf8 Ke6 38.Nf3 Rd1 39.Kg2 Ra1 (39...Bd3=+) 40.Ra8 (better 40.Ng5 Kd7 41.Rf7 Ke8 42.Ra7 Ra4 43.Kg3=) 40...Ra4-/+ 41.Ng5 (41.Re8 Kf6 42.Rd8 Ra3-/+) 41...Kf6 42.h4 Bd3 43.Kg3 Bf5 44.f3 Ke5 45.Rf8 Ra1 (45...Bd3 46.Re8 Kd6 47.Rd8 Kc6 48.Ne6-/+) 46.f4 Kd4 47.h5 Rh1 48.hg6 Bg6 49.f5 Bf5 (49...Bh5 50.Ne6 Ke5 51.Nd8-/+) 50.Rf5 Kc4 (50...a5 51.Rf4 Kc5 52.Ra4=+) 51.Nf3 ½–½. La Rota,Fabio (2300) – Juarez (2300), Asousados, 1986. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 Ng6 7.d4 Be7 8.Bd3 Qd7 9.h4 Ba6 10.Bc2 Nc6 11.h5 Nf8 12.Ba4 Bc4 13.bc5 bc5 14.Nbd2 Ba6 15.Nb3 Qc7 16.Na5! Bb7 (16...Qa5 17.Bc6 Double attack (17.Bc6 Deflection)) 17.Qb3 0-0-0 18.Nc6 Bc6 19.Bc6 Qc6 20.Bg5 Bg5 21.Ng5 Rd7 22.Rb1 Qc7 23.Qb5 Kd8 24.0-0 h6 (24...c4 25.Nf3+-) 25.Nf3 c4 26.a4 (26.Rb2 Re7+-) 26...a5 (26...g6!?+=) 27.Qa6+- Qa7 28.Rb6 Rc7 (28...Qa6 29.Ra6 Rb7 30.Ra5+-) 29.Rfb1 (29.Qb5 Nd7 30.Ra6 Qb8+-) 29...Ke7+- 30.Qa7 (30.Qb5 Nd7 31.Ra6 Rb8 32.Qb8 Qb8 (32...Nb8?? 33.Ra7 Ra7 34.Rb8+-) 33.Rb8 Nb8 34.Ra5 Nc6+-) 30...Ra7 31.Rb8 f6 32.Nh4 fe5 (32...Kd7 33.f4 fe5 34.fe5+-) 33.de5+- Kd7 (better 33...Rd7!?+-) 34.Nf3 g6?! (34...Rc7+-) 35.Nd4 Rc7 36.R1b6 gh5 (36...Rc8 37.Rd6 Kc7 38.Rbb6+-) 37.Nb5 Ng6 38.Rd6 (38.Rd6 Ke7 39.Rh8 (39.Nc7?! Rb8 40.Re6 Kd7 41.Rg6 Kc7+-) 39...Nh8 40.Nc7+-) 1–0. Wohlfart,Paulus – Rechel,Ralf, Wiesbaden op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 a5 7.b5 Nf5= 8.c3 a4 9.Bd3 (9.Bg5 f6 10.Bd2 c4+=) 9...Qc7 (9...Qd7 10.dc5 Bc5 11.0-0+=) 10.0-0 (10.Ra2 Ra5+=) 10...Bd7= 11.Re1 h6 (11...c4 12.Bf5 ef5 13.Ng5+=) 12.Bf4 Qc8 (12...g5 13.Bf5 Bb5 14.Be3 ef5 15.dc5 bc5 16.Qd5=) 13.Bf5 ef5 14.e6 Be6 15.c4 Be7 16.cd5 Bd5 17.Nc3 (17.dc5 Qd8 18.cb6 Be4 19.Qd8 Bd8+-) 17...Bb3+= 18.Qe2 Qe6 19.Qd2 White prepares d5 19...Qd7 20.d5 (20.Qe3 Qe6+=) 20...0-0= 21.Ne5 Qb7 (21...Qd8 22.Qd3=) 22.Nc6+= Bf6 23.Be5 Bg5 (23...Be5!? 24.Re5 Nc6 25.bc6 Qc7+=) 24.f4+- Bh4 25.g3 (worse 25.Nb8 Be1 26.Re1 Rab8 27.Bb8 Qb8=+) 25...Bd8 26.Qd3 Nd7 27.Qf5 (27.Bd6!?+-) 27...Ne5+= 28.fe5 (worse 28.Re5 Bf6=+; worse 28.Qe5 Bf6 29.Qe3 Kh8=+) 28...Bg5 29.Qd3 Qd7 30.h4 Bd8 (30...c4 31.Qd4 Bd8 32.Ne4+- (worse 32.Nd8 Qd8 33.Rac1 Rc8=)) 31.Kg2 (31.Rf1 Rc8+-) 31...Re8+= 32.Re2 (worse 32.Nd8 Rad8 (32...Qd8?! 33.Re2=) 33.Kg1 Qg4-/+ (33...Bd5?! 34.Rad1 Be6 35.Qd7 Rd7 36.Rd7 Bd7 37.Na4=)) 32...Qg4 33.Re4 (33.Qf3 Qd7+=) 33...Qg6 (33...Qd7!?+=) 34.Qf3+- Rc8 (34...h5 35.Rf1+-) 35.Rf1 (35.h5 Qh7+-) 35...h5 36.Rf4 (36.Nd8?! Rcd8 37.Ree1 Rd7=) 36...Rc7 37.Rf2 (37.Na4? Ba4 38.Nd8 Bb5-+) 37...Rd7 (37...Rb7 38.Na4 c4 39.Nc3+- (39.Nd8?! Rd8 40.Nc3 Ra8+-)) 38.Kh2 (better 38.e6 Bd5 39.Qd5 Rd5 40.ef7 Qf7 41.Rf7+-) 38...Bc7 39.Rf5 Qg4 0–1. Moeldner,Juergen – Zlochevskij,Alexander (2455), Liechtenstein op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 a5 7.Nc3 ab4=+ (worse 7...cb4 8.ab4 Nf5 9.ba5 Ra5 10.Bd2+=) 8.Nb5 Nec6 9.Bg5 Qd7 10.ab4 Ra1 11.Qa1 c4 (11...Nb4 12.Qa4 N4c6 13.dc5 Bc5 14.Bd3=+) 12.Be2 (12.c3!?=) 12...h6 13.Bd2 (13.Bc1 Nb4 14.Na3 Qa4-/+) 13...Nb4 (worse 13...Bb4 14.Bb4 Nb4 15.Qa4+=) 14.0-0 (14.Na3!?-/+) 14...Qb5-+ 15.Qb2? (15.Bb4 Bb4 16.Qa8 0-0 17.Qb8 Qa6-+) 15...Bd7 (better 15...Qa4 16.Rb1 N8c6-+ (16...Nc2?! 17.Bd1-+)) 16.Rb1 c3! 17.Bc3 (17.Qc3 Qe2 Discovered attack; 17.Bc3 Qe2 Discovered attack) 17...Qe2 18.Bb4 Qb5 (18...Bb4 19.Qb4 Qc2 20.Qb6-+) 19.Qa3? (better 19.Bf8 Qb2 20.Rb2 Kf8 21.Rb6-+) 19...Na6 20.c3 Bb4 21.Rb4 Qa5 (21...Qa5 22.Qa5 ba5-+) 0–1. Cirabisi,Federico – Zlochevskij,Alexander (2425), Imperia op, 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 a5 7.bc5 bc5 8.dc5 Nec6+=.

6.d4 Qc7 7.Bd3 cd4 8.0-0 Nec6 9.Re1 Nd7 Will e5 fall? 10.Qe2 Be7 11.Nbd2 0-0 12.Bb2 a6 13.Nb3 Increases the pressure on d4 13...b5 14.Nbd4 Nd4 15.Bd4 Nb6 16.c3 Bd7 17.h4 Nc4 18.Nh2 (better 18.h5+=) 18...f5 (better 18...h6!?=) 19.ef6+- Bf6 (19...Rf6 20.Bf6 Bf6 21.Nf3+-) 20.Qh5 h6 21.Qg6 e5 22.Qh7 Kf7 23.Be5?? (better 23.Be2 Rh8 24.Bh5 Ke7 25.Qd3+=) 23...Nd6 (23...Ne5 24.Be2 Ke7-+ (24...Bh4 25.Bh5 Ke6 26.Qg6 Rf6 27.Qg4 Kd6 28.Qh4=; 24...Qc3?! 25.Bh5 Ke7 26.Rac1-+)) 24.Qg6 (24.Bf6 Ne4 25.Qg7 Ke6 26.Qe7 Kf5 27.g4 Kf4 28.Qe4 de4 29.Re4) 24...Kg8+- 25.Qh7 Kf7 26.Bg6 (26.Bf6 Ne4 27.Qg7 Ke6 28.Qe7 Kf5 29.g4 Kf4 30.Qe4 de4 31.Re4) 26...Ke7+- 27.Bh5 Kd8 28.Qd3 (better 28.Bf6 gf6 29.Qe7 Kc8 30.Qf8 Kb7 31.Qf6+-) 28...Qc6 (28...Qc4 29.Bf6 Rf6 30.Qh7 Qh4 31.Qg8 Kc7 32.Qa8 Qf2 33.Kh1+-) 29.Rad1 Be6? (29...Ne4 30.Nf3 Rc8+-) 30.Bg4 Bg8 (30...Bd7 31.Bf3 Rc8 32.Bd5+-) 31.Qg6 (31.Nf3!? Nc4 32.Nd4 Qb6+-) 31...Kc7 (31...Nc4 32.Bf4+-) 32.Nf3 (better 32.Bf6 gf6 33.Re7 (worse 33.Qh6 Rae8+-) 33...Kb8 34.Nf3+-) 32...Rfe8 (32...Bf7 33.Qh7 Bg8 34.Qc2+-) 33.Bf4 (better 33.Nd4 Re5 34.Nc6 Re1 35.Re1 Kc6+-) 33...Rad8? (better 33...Kb7 34.Ne5 Qc3+-) 34.Ne5 Be5 (34...Qb7 35.Nd3 Re1 36.Re1+-) 35.Be5 (better 35.Re5 Kb7 36.Qg7 Qc7 37.Qc7 (worse 37.Bh6 Re5 38.Qe5 Re8+-) 37...Kc7 38.Rde1+-) 35...Kb8 (35...Re7 36.Bg7 Ne4 37.Qh6 Qh6 38.Bh6 Rde8+-) 36.Bd6 Rd6 (36...Ka8+-) 37.Qe8 (37.Re8 Ka7 38.Qg7 Rd7 39.Bd7 Qb7 40.Qd4 Qb6 41.Ra8 Ka8 42.Qb6 d4 43.Bc6) 37...Qe8 38.Re8 Kb7 39.Rg8 Rc6 40.Rg7 (40.Rd5 a5 41.Rd7 Ka6 42.Bf3 ab4 43.ab4 g5 44.Bc6 gh4 45.Rg6 h3 46.Be4) 40...Kb6 41.Bf3 (41.Bf3 Rc7 42.Rg6 Rc6 43.h5 Rg6 44.hg6 Kc6 45.g7 Kc7 46.g8Q Kd6 47.Rd5 Kc7 48.Rd4 Kb6 49.Qb8; 41.Rd5 h5 42.Bf3 a5 43.Rd8 Rc7 44.Rb8 Ka6 45.Rc7 ab4 46.Rcb7 ba3 47.Ra8) 1–0. Rossi,Carlo (2345) – Iotti,Pierluigi (2255), ITA–chT, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 cd4 7.Bd3 Nd7 8.0-0 Ng6 9.Re1 Qc7 Now all is on e5 10.Qe2 (10.Bg6 hg6 (worse 10...fg6 11.Nd4 Nb8 12.Nd2+=) 11.Bb2 Ba6=) 10...Be7 (10...a5 11.ba5 ba5 12.Bb2=+) 11.g3 (11.Bb2 a5 12.b5 Bc5=) 11...0-0 12.Bb2 a5 13.b5 Bc5 14.Nbd2 f6 (14...a4!?=) 15.Bg6+= hg6 16.ef6 Rf6 17.Bd4 Bd4 18.Nd4 Nc5 (18...e5 19.Nc6 Bb7 20.Ne5+=) 19.f4 Bb7 20.Qe3 Rc8 21.N2f3 Qd6 (21...Ne4 22.Rad1+-) 22.Qe5 Qe5 23.Ne5 (23.Re5 Ne4+-) 23...Kf8 (23...g5 24.fg5 Rff8 25.h4+-) 24.g4 (24.Ng4 Rf7+-) 24...Kg8 25.Rf1 Rcf8 26.Ne2 Kh7 27.Rad1 Bc8 (27...g5 28.fg5 Rf1 29.Rf1 Rf1 30.Kf1+-) 28.g5+- Rf5 29.Rf3 Re5 30.Rh3 Kg8 31.fe5 Rf5 32.Re3 Rg5 33.Ng3 Bd7 (33...Rg4 34.Rc3+-) 34.Rd4 Bb5 35.h4 Rf5 36.Nf5 gf5 37.Kh2 Be8 (37...Kh7!?+-) 38.c4 Bc6 39.Kg3 Kf7 40.Kf4 g6 41.Rh3 (41.Rc3 Bb7+-) 41...Kg7 42.h5 gh5 43.cd5 (43.Rh5?! dc4 44.Rc4 Nd3 45.Ke3 Ne5=) 43...ed5 1–0. Zablotsky,S (2500) – Turkin,V (2295), 11th Master Open, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 cd4 7.Qd4 a5 8.b5 Ng6=.

6.d4 cd4 7.Nd4 Nbc6 8.Nc6 Nc6 9.Bb2 Ne7 10.Bd3 Ng6 11.Qd2 Be7 12.0-0 0-0 13.f4 f6 14.Qe2 (14.Nc3 f5+=) 14...Bd7 15.Nd2 Qe8 16.g3 (16.Qe3 a5+=) 16...fe5= 17.fe5 Bg5 (17...a5 18.Qg4=) 18.Rf8+= Qf8 19.Rf1 Qe7 20.Nf3 Rf8 21.Bd4 Be8 22.Qg2 Bh6 23.Qe2 Nh8 (23...Bg5 24.c4+=) 24.Be3 Be3 25.Qe3 Bg6 26.Nd4 Rf1 27.Bf1 Nf7 28.h4 (28.Bh3 Nd8+=) 28...Be4= 29.Bh3 Nd8 (29...Ne5 30.Qf4 Qf6 31.Be6 Kf8 32.Qf6 gf6 33.g4=) 30.Qf4 Bg6 31.c3 (31.Qg4 Bf7=) 31...Bf7 32.Kh2 Qc7 (32...a6 33.Qg5 Qd7 34.Bf1=) 33.Nb5 Qd7 34.Nd6 h6 (34...Nb7 35.Nf7 Qf7 36.c4+=) 35.Bf1 (35.c4 dc4 36.Qc4 Qe7+-) 35...Qc7 (35...Qa4 36.Qc1=) 36.Nb5 (36.c4 dc4 37.Bc4 Bg6+-) 36...Qd7 37.Bd3 (37.c4 Bg6+=) 37...Nb7 (37...Bg6 38.Be2= (worse 38.Bg6 Qb5 39.Kh3 Qe2=+)) 38.Kh3 (38.Na7 Nd8 39.Nb5 Bg6+-) 38...Qc8 (38...a6 39.Nd4 b5 40.Qe3=) 39.Qd2 (39.Bh7! Kh7 40.Qf7=) 39...a6= 40.Nd4 Nd8 41.Qe3 Qb7 42.Qe2 Qc7 43.c4 dc4 44.Bc4 b5 45.Bb3 Qc1 46.Qd1 Qc7 (worse 46...Qa3 47.Nb5 ab5 48.Qd8 Kh7 49.Bc2 Bg6 50.Bg6 Kg6 51.Qe8 Kh7 52.Qb5+=) 47.Qe1 Qb7 (47...Bg6 48.Qe3= (48.Be6? Ne6 49.Ne6 Bf5 50.Kg2 Qc2 51.Kf3 Be6-+)) 48.Kh2 Qc7 49.Qe3 Nc6? Attacking the isolated pawn on e5 (49...Kh8 50.Bd1+=) 50.Qc1 (50.Be6?! A) 50...Qe5?? 51.Bf7 Kf7 52.Qf3 Kg8 53.Nc6+- (53.Qc6?! Qd4 54.Qa6 Qd2 55.Kh1 Qe1 56.Kg2 Qe2 57.Kh3 Qf1 58.Kg4 Qc4 59.Kf3 Qd3 60.Kf4 Qd4 61.Kf5 Qd5 62.Kf4 Qd4 63.Kf5 Qd5 64.Kf4 Qd4=); B) 50...Ne5 51.Bf7 Kf7 52.Qf4 Kg8=) 50...Qe5 51.Nc6 Qe2 52.Kh3 (52.Kg1 Qf3 53.Na5 Qg3 54.Kf1 Qf3 55.Ke1 Qe4 56.Kd2 Qd4 57.Ke2 Bh5 58.Kf1 Qd3 59.Kg2 Qe4 60.Kg1 Qd4 61.Kg2 Qe4 62.Kg1 Qd4 63.Kg2 Qe4=) 52...Bh5= 53.Qf4 Bg4 ½–½. Mach,Holger (2300) – Machelett,Heiko (2355), Oberliga Nord N9798, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 Nf5 7.c3 cd4 8.cd4 Bd7 9.Bd3 Nc6 10.Be3 (10.Bf5 ef5 11.Nc3 Be6+=) 10...Be7 (10...Ne3 11.fe3 b5 12.Bb5 Ne5 13.Ne5 (13.de5?! Bb5 14.Nc3 Bd7=+) 13...Bb5 14.Nc3+-) 11.Nc3 Ne3 12.fe3 f5 13.ef6 Bf6 14.0-0 0-0 15.Qc2 h6 16.Rac1 a6 17.Qe2 b5 18.Bb1 Qe7 19.Qd3 g5 20.e4 (20.Nd2 Qg7+-) 20...Qg7 (20...g4 21.ed5 gf3 22.dc6 Bc6 23.gf3=) 21.ed5 (21.e5 Be7+=) 21...Nd4= 22.Nd2 Nf5 23.Kh1 Bd4 24.Ne2 e5 (24...ed5 25.g4 (25.Rf5?! Bf5 26.Qd4 Qd4 27.Nd4 Rac8=) 25...Ne3 26.Rf8 (26.Qd4?! Nf1 27.Qd5 Qf7 28.Qf7 Rf7 29.Nf1 Bg4=) 26...Rf8 27.Nd4 Ng4 28.Qc3+-) 25.Rc7 Ne3 26.Rf3 Rf3 (26...Nd1!? 27.Nd4 ed4+=) 27.Nf3+- Ng4 (27...Nd5?? 28.Ba2 Kh8 29.Bd5+-) 28.Qh7! Qh7 29.Bh7 Kh7 30.Rd7 Kg6 31.Ned4 ed4 32.Nd4 a5 33.Rd6 (33.Nb5 ab4 34.Rd6 Nf6-+) 33...Nf6 34.h3 (34.Nb5 ab4 35.a4 Ra4-+) 34...ab4 35.ab4 Ra1 36.Kh2 Rd1 37.Nb5 Rd5 38.Rb6 g4 39.Nc7 Rd3 40.hg4 (40.h4 Kf5+-) 40...Kf7 (40...Kg5 41.Rb5 Kg6 42.g3 Ng4 43.Kg2+=) 41.g3+- Ng4 42.Kh3 Nf2 (42...Ne3 43.b5+- (worse 43.Rh6 Rd1 44.Kh4 Nf5 45.Kg5 Nh6 46.Kh6 Rg1=)) 43.Kh4 Rd1 44.g4 (44.Rh6 Rd4 45.Kh5 Rb4 46.Rh7 Kg8+-) 44...Rd3 (better 44...Ne4!? 45.Kh3 Rd3 46.Kg2 Nf6+=) 45.Rh6+- Rh3 46.Kg5 Ne4 47.Kf4 Rh6 48.Ke4 Rc6 ½–½. Mola,P (2315) – Di Paolo,R (2325), 63rd ch–ITA Arvier ITA, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.d4 Nf5 7.Bd3 g6 (7...cb4 8.0-0=+) 8.0-0 (8.Bg5 Be7 9.Be7 Qe7+-) 8...Nd4 9.Nd4 cd4 10.Nd2 (10.Bb2 Nc6=) 10...Qd7 (10...Bg7!?=) 11.Nf3 Ba6 12.Bg5 Bd3 13.Qd3 Bg7 14.Rae1 0-0 15.b5 (15.Nd4 Nc6 16.Nc6 Qc6=) 15...Qc7 16.Qd4 (16.Bf4 a6=) 16...Nd7 Pawn e5, live or die! 17.c3 (17.Re2 a6=+) 17...Rfc8 18.Re3 Qc4 (18...a6 19.a4=+) 19.a4 (19.Qc4 Rc4 20.Be7 Bh6-/+) 19...a6-/+ 20.Rb1 ab5 21.ab5 Qa2 (21...Ra3 22.Qd1-/+) 22.Qd1 Qa4 23.Qe1 Bf8 24.Nd4 Rc5 (24...Bc5 25.Rd3=+) 25.h4 (25.Rf3 Rc4=) 25...h5 (25...Rc4 26.Re2=+) 26.Rg3 (26.Rb4!? Qa7 27.Nc6=) 26...Rc4=+ 27.Qe2 (27.Qe3 Bc5-/+) 27...Qa2-/+ 28.Rb2 (28.Re1 Bb4 29.cb4 Rd4 30.Qa2 Ra2-/+) 28...Qa3 (better 28...Qa1!? 29.Kh2 Ne5-+) 29.Rc2=+ Bg7 (29...Bc5 30.Rd3=+) 30.Bf4 Qe7 31.Bg5 Ra1 32.Kh2 Qe8 (32...Qf8 33.Re3=+) 33.Bf4 (33.Re3 Nc5=+) 33...Rb1 (33...Qd8 34.Rh3-/+) 34.Ra2-/+ Nc5 (34...Rb5 35.Nb5 Rf4 36.Kh3-/+) 35.Re3=+ Ne4?? (better 35...Nb3 36.Rb2 Nd4 37.cd4 Ra1=+) 36.Re4+- Rc3 (36...Rb5 37.Re3 (37.Nb5?! Re4 38.Be3 Rh4 39.Kg1 Be5+=) 37...Ra5 38.Rb2+-) 37.Re3 Rcc1 38.Rea3 Rh1 39.Kg3 Qe7 40.Bg5 (40.Nf3!? Bf8 41.Ra7 Qb4+-) 40...Qc5 1–0. Borsos,Bogdan (2345) – Nielsen,Jan Lovig, Aarhus op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

6.c3 c4

7.d3 cd3 8.Bd3 Nd7 9.0-0 Ng6 10.Re1 Be7 11.g3 (11.c4 Nde5 12.Ne5 Ne5 13.Re5 dc4=) 11...0-0 (11...Qc7 12.Qe2=) 12.h4= f5 (12...Qc7 13.Qe2=) 13.ef6 (13.h5 Nh8+-) 13...Nf6 (13...Bf6 14.Bg6 hg6 15.Re6+=) 14.Ng5+- e5 15.h5 (15.Bg6 hg6 16.Re5 Qc7+=) 15...Ng4= 16.f3 (worse 16.hg6 Bg5 17.gh7 Kh8+=) 16...Bg5 17.hg6 Bc1 18.gh7 Kh8 19.fg4 (19.Qc1 Rf3 20.Kg2 Qf6-+) 19...e4 20.Be4 de4 21.Qd8 (21.Qc1 Qd3 22.Re3 Rf1 23.Qf1 Qe3 24.Qf2 Qc1 25.Kh2 Bg4-/+ (25...Kh7?! 26.Qf4 Qf4 27.gf4=+)) 21...Rd8=+ 22.Rc1 Bg4 23.Re1 Rd3 24.Ra2 e3 25.Kg2 0–1. Stukner,S (2135) – Kozak,Pav (2045), Pobeskydi Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.d3 cd3 8.Bd3 Ng6 9.0-0 Qc7 10.Re1 Be7 11.a4 (11.Nd4 Nd7 (11...Ne5? 12.Nb5 Qd7 13.Re5+-) 12.f4 0-0=) 11...Nc6 Increases the pressure on e5 12.Qe2 0-0 13.Na3 f6 (13...a6 14.b5 Na5 15.Bg5=) 14.Nb5+= Qd7 15.ef6 Bf6 (15...Rf6 16.Na3+=) 16.Ng5 (16.Bg6 hg6 17.Nbd4 e5 18.Nc6 Qc6 19.Ne5 Qc3+-) 16...Bg5+= 17.Bg5 Nge5 18.Bc2 a6 (18...Nf7 19.Be3+=) 19.Na3 Ng6 (19...h6 20.Bh4 Nf7 21.Qd3+-) 20.Rad1 (20.Bg6 hg6 21.Rad1 Rf5+-) 20...Qf7+= 21.Rd3 (21.Be3 Nf4 22.Qd2 Qc7+=) 21...e5 22.Rf3 Nf4 23.Bf4 ef4 24.Bb3?? (better 24.b5 Na5 25.Qd3=) 24...Bg4-/+ 25.Qd3 (25.Qd1 Rad8 26.h3 Bf3 27.Qf3 Rd7-/+) 25...Rad8 (25...Rfe8 26.Nc2 Re1 27.Ne1-/+) 26.b5 (26.h3 Bf3 27.Qf3 Rd6-/+) 26...ab5-+ 27.Qb5 (27.ab5 Rfe8 28.Re8 Re8-/+) 27...Na7 (27...Rde8 28.Nc2 Re1 29.Ne1-/+) 28.Qd3 Bf3 29.Qf3 Kh8 30.Rd1 Nc6 (30...Qe7 31.Nc2 Qe4 32.Nb4-/+) 31.Bd5 Ne5 32.Qe4 f3 33.g3 (33.Nc2 Qh5 34.Ne3 fg2-+) 33...Qe6 (33...Ng4 34.c4 Qh5 35.h4-/+) 34.Nc2 (34.Be6?? Rd1 35.Qe1 Re1) 34...Qh3 35.Ne1 (35.Ne3 Rde8-/+) 35...Rde8-+ 36.Qh4 Qh4 37.gh4 Rc8 38.c4 Nc4 39.Bf3 (39.Nf3 Nb2 40.Ra1 Rc5-+) 39...h6 (39...Nb2 40.Ra1-+) 40.Rc1 (better 40.Rd4!?-+) 40...Nb2 41.Rc8 Rc8 42.Kf1 Na4 43.Ke2 Rc4 44.h5 Nc5 45.Bd5 Rd4 46.Bf7 (46.Bc6 Rh4 47.Nf3 Rh5-+) 46...Re4 47.Kf1 Re7 (47...b5 48.Bg6 Ra4 49.Be8-+) 48.Bg6 b5 49.Nc2 Kg8 50.Ne3 (50.Kg2 Ra7-+) 50...b4 51.Ke2 Rd7 52.Nd1 b3 53.Nb2 Kf8 54.f3 (54.Ke3 Ke7-+) 54...Rd4 55.Ke3 Rh4 56.Nd3 (56.h3 Rh3 57.Nc4 Ke7-+) 56...Nd3 57.Kd3 Rh2 58.Kc3 b2 59.Kb3 Rh5! 60.Kb2 (60.Bh5 b1Q Combination) 60...Rc5 0–1. Den Boer,P (1975) – Lalic,Bogdan (2490), OKU Open A, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

7.d4 cd3 8.Bd3 Nec6 9.0-0 Qc7 10.Re1 Nd7 Now all is on e5 11.Bf4 h6 (11...a5 12.Nbd2 Bb7+=) 12.h4 (12.Nd4 Nd4 13.cd4 a5+-) 12...Be7 (12...g5 13.hg5 hg5 14.Ng5= (14.Bg5 Nce5 15.Qe2 Nf3 16.Qf3 Qh2 17.Kf1 Rg8=)) 13.h5 (13.Qe2 g5 14.hg5 hg5 15.Ng5 Bg5 16.Bg5 Qe5 (worse 16...Nce5 17.Bf4 f6 18.Bb5+=; worse 16...Nde5 17.Bf4+-) 17.Qe5 Nce5=) 13...Bb7 (13...0-0 14.Nbd2=) 14.Nbd2 a6 (14...0-0 15.c4+=) 15.c4+= dc4 16.Nc4 b5 (16...0-0 17.Qe2 Rfd8 18.Rac1+-) 17.Nd6 Bd6 18.ed6 Qd8 19.Qd2 (19.Qe2 Rc8+=) 19...Nf6 20.Rad1 (20.Ne5 Nh5 21.d7 Kf8+=) 20...Nh5= 21.Re6 (21.Be4!? Qd7 22.Be5=) 21...fe6=+ 22.Bg6 Kd7 23.Bh5 a5 (better 23...Rc8!?+=) 24.Qc3+- Rg8 25.Bf7 ab4 26.ab4 Rc8 (26...g5 27.Bg8 gf4 28.Qg7 Kc8 29.d7 Kb8 30.Qh6+-) 27.Qd3 (better 27.Qe5 Qf6 28.Qb5+-) 27...Ba6 (27...Rf8 28.Qb5 Rf7 29.Ne5 Ke8 30.d7 Rd7 31.Rd7 Qd7 32.Nd7 Nd8+-) 28.Qe3 (28.Bg8?! Qg8 29.Qe3 Qd8+-) 28...Qf6 29.Bg8 (29.Ne5 Qe5 30.Be5 Rgf8 31.Be6 Ke6 32.Bg7 Kf7 33.Bf8 Rf8 34.Qf3 Kg7 35.Qc6 Bc8+-) 29...Rg8 (29...Bb7+-) 30.Ne5 Ne5 (30...Qe5 31.Be5 (31.Qe5?! Ne5 32.Be5 Bb7+-) 31...Bc8 32.Qb6+-) 31.Be5 (better 31.Qa7 Ke8 32.d7 Kf7 33.d8Q (33.Qa6 Qf4 34.Qc8 Qb4=+) 33...Kg6 34.Qg8+-) 31...Qf5 (31...Qd8 32.Qa7 Ke8 33.Qa6 h5 34.d7 Kf7+-) 32.Qa7 Kd8 (32...Bb7 33.Qb7 Kd8 34.Qe7 Kc8 35.Qc7) 33.Qc7 (33.Qc7 Ke8 34.Qe7; 33.Qe7 Kc8 34.Qc7) 1–0. Scacco,Mauro (2090) – Astengo,Marcello (2070), It (b) Rome ITA, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

7.d4 cd3 8.Bd3 Qc7 9.0-0 Ng6 10.Re1 Nd7 Can e5 get defended? 11.Qe2 Be7 12.g3 (12.Ra2 Bb7=) 12...a6 13.h4 b5 (13...Bb7 14.h5 Ngf8 15.Nd4=) 14.h5+= Ngf8 15.Bf4 (15.a4 ba4 16.Ra4 Nb6+=) 15...Nb6= 16.Nbd2 (16.Nd4 Bb7=) 16...Bb7 (16...Qc3? 17.Rec1 Bb4 18.Rc3 Bc3 19.Rc1 Bd2 20.Nd2+-) 17.Rac1 Rc8 18.Nd4 g5 19.Qg4? (19.Be3 Nc4=) 19...h6 (19...Nfd7 20.Bg5 Ne5 21.Ne6 Ng4 (worse 21...fe6 22.Qe6 Nc6 23.Bh7+=) 22.Nc7 Rc7-/+) 20.Be3+= Nc4 (20...Qe5? 21.N4f3 Qc7 22.Qd4+-) 21.Nc4 dc4 (21...bc4 22.Bc2+=) 22.Be4+= Nd7 23.Nf3 Nb6 (23...Be4 24.Qe4 0-0 25.a4=) 24.Bb7 Qb7 25.Bb6 Qb6 26.Qe4 (26.a4 ba4 27.Nd2 Qb5+=) 26...0-0= 27.Nd4 (27.Rcd1 Rfd8=) 27...Rc7 28.Rcd1 Rd8 29.Kg2 Kg7 (29...Rcd7 30.Re2=) 30.f4 gf4 31.gf4 Qb7 (better 31...Rcd7!?=) 32.Qb7+- Rb7 33.Kf3 (33.f5 ef5 34.Nf5 Kh7 35.Rd8 Bd8+-) 33...Kh7 34.Rg1 Rbd7 35.Ke4 Rg8 (35...Bh4 36.Rdf1+-) 36.Rg8 Kg8 37.Ra1 (37.a4 f5 38.Ke3 ba4+-) 37...Bh4 38.a4 Bf2 39.ab5 Bd4 40.Rd1 (worse 40.ba6 Ba7= (40...Bc3? 41.a7 Ra7 42.Ra7 Bb4 43.Ra4+-)) 40...ab5 41.Rd4 (worse 41.cd4 f5 42.Ke3 Kf7=) 41...Ra7 42.Rd8 Kg7 43.Rb8 Rd7 44.Rb5 Rd3 45.Rc5 Rc3 46.Kd4 (46.b5!?+-) 46...Rf3+- 47.Rc4 Rf4 48.Kc5 Rf5 49.Re4 Rh5 50.b5 Rh1? (better 50...f5 51.b6 fe4+-) 51.b6 Rb1 52.Rb4 Rc1 53.Kd6 Rc8 54.b7 Rb8 55.Rg4 (55.Rg4 Kh7 56.Kc7+-) 1–0. Reich,T (2390) – Kretschel,K (2100), 31st Munich OIS A, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

7.d4 cd3 8.Bd3 Qd7 9.Qe2+= a5 10.b5 Qc7 11.Bb2 Nd7 12.Nbd2 Nc5 13.Bc2 a4 (13...Bb7 14.0-0+=) 14.c4 Bb7 15.0-0 Ng6 16.h4 (16.Rac1 Be7+=) 16...dc4 17.Nc4 Be7 18.h5 Nf4 19.Qe3 Nd5 (19...Nh5 20.g4 Qd7 21.Nb6 Qb5 22.Na8 Ba8 23.gh5 Qb2 24.Ba4 Na4 25.Rfb1+-) 20.Qd4 f5 (better 20...Qd7!?=) 21.Nd6!+/- Bd6 (21...Kf8 22.Rad1+/-) 22.ed6 Qd6 (better 22...Qd7 23.Qg7 Qg7 24.Bg7 Rg8+/-) 23.h6 (23.Qg7 0-0-0 24.Be5+/- (worse 24.Qh8 Rh8 25.Bh8 Nf4=+)) 23...0-0-0 (23...Rg8 24.hg7 Qe7 25.Rae1+=) 24.hg7 (24.Qg7 Rhg8 25.Be5 Rg7 26.Bd6 Rgg8 27.Bc5 bc5-/+; 24.Ba4?! gh6 25.Qd2 Rhg8=) 24...Rhg8 25.Rfe1 (25.Rfd1 Qe7+=) 25...Qc7 (25...Nc7 26.Qe3=) 26.Qe5 (better 26.Rad1!?+=) 26...Rd7=+ 27.Qc7 Rc7 (better 27...Nc7!? 28.Nh4 Be4=+) 28.Ng5 Exerts pressure on the backward pawn 28...Rcg7? (better 28...Nf4!? 29.Ne6 Nfe6 30.Bf5 Bd5+=) 29.Bg7+- Rg7 30.Ne6 Ne6 31.Bf5 Ndf4 32.Be6 Kb8 (32...Ne6 33.Re6 Bg2 34.Kh2+-) 33.g3 h5 34.Kh2 (34.Bf5 Rg5 35.Re8 Kc7 36.Re7 Kb8+-) 34...Nd3 35.Re2 h4 36.Bf5 (36.Rg1!? hg3 37.Rg3 Rh7 38.Rh3 Rh3 39.Bh3 Bd5+-) 36...Nf2 37.Rg1 (37.Rf2?? hg3 38.Kh3 gf2-+) 37...Ng4 38.Kh3 Nh6 39.Be6 (39.Re8 Ka7 40.Be4 hg3 41.Rg3 Rd7+-) 39...hg3 40.Rg3 Rh7 41.Rg6?? (better 41.Rd3+-) 41...Bf3-+ 42.Re1 (42.Kg3 Be2 43.Bd5-+) 42…Nf5 (42...Nf5 43.Rh6 Rh6) 0-1. Lagarde,Max (2650) - Edouard,R (2640), Djerba Blitz Masters, 2020.

7.d4 cd3 8.Bd3 g6 9.Bg5 Bg7 10.0-0 0-0 11.Qd2 Re8 12.Re1 Qc7 13.Qf4 Nd7 e5 draws heavy fire 14.Qh4 (14.Bh6!?+=) 14...Nf5 15.Bf5 ef5 e5 seems the pivot of the position 16.Nbd2 (16.Bf4 Be5 17.Ne5 Ne5=) 16...Bb7 (16...Ne5?! 17.Ne5 Re5 18.Bf4 Re1 19.Re1=) 17.Re3 Ne5 18.Ne5 Be5 Exerts pressure on the backward pawn (18...Re5?! 19.Bf4 f6 20.Nf3=) 19.Rae1 Bc6 (19...Re6!?-/+) 20.Nf3= Bd6 21.Bf6 Re4 22.Qh3 h5 23.Ng5 Ree8 24.Qh4 f4 25.Re8 Re8 26.Re8 Be8 27.Nf3 a5 28.Qg5 Bf8 29.Be5 Bd6 30.Bd4 Be7 31.Qh6 f6 32.Ng5 Bd8 33.Nf3 Be7 34.Ng5 Bd8 35.Nf3 Qd6 36.h4 Qc7 37.Kh2 Qd6 38.g3 (better 38.Kg1!?=) 38...Bc7 39.Ng5 (better 39.Qf4!? Qf4 40.gf4 Bf4 41.Kg2-/+) 39...fg3-+ 40.Kg2 gf2?? (better 40...Qe7 41.Nf3 gf2 42.Kf2 a4-+) 41.Qh7+- Kf8 42.Qc7! Qe7? (42...Qc7 43.Ne6 Double attack (43.Ne6 Decoy)) 43.Nh7 Kf7 44.Qe7 Ke7 45.Nf6 Bf7 46.Kf2 ab4 47.ab4 b5 48.Ke3 1–0. Flaata,Alexander R (1930) – Salomonsen,Rune (1690), Bergen Sommer op, 2003. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 b6 5.a3 Ne7 6.c3 c4)

7.d4 cd3 8.Bd3 Ng6 9.0-0 Be7 (9...Qc7 10.Re1=) 10.Re1 (10.c4 Nc6 11.Bb2 dc4 12.Bc4 Bb7+=) 10...Bb7 11.Nbd2 0-0 12.Nd4 a5 13.Qh5 (13.N2b3 Nd7 14.Qh5 Qb8=) 13...Nc6 (13...ab4 14.cb4 Bb4 15.N4f3=+) 14.Re3 (14.N2f3 ab4 15.Nc6 Bc6+=) 14...Nd4 (14...ab4 15.Rh3 h6 16.Ne6 fe6 17.Qg6 Ne5 18.Qe6 Nf7 19.Nf3-/+ (worse 19.cb4 Bf6 20.Rb1 Bc8-/+)) 15.cd4 Qe8 (better 15...ab4!? 16.Rh3 h6 17.Bg6 fg6 18.Qg6 Qe8 19.Qe6 Qf7 20.Qf7 Kf7 21.Rf3 Ke8+=) 16.Rh3+- h6 17.Nf3 f5 (17...ab4?? 18.Bh6! Bh4 19.Be3+-) 18.ef6 Rf6 19.Bh6! Nf4 (19...gh6 20.Rg3 Combination) 20.Bf4 (20.Qe8!? Re8 21.Bf4 Rf4+-) 20...Qh5+- 21.Rh5 Rf4 22.b5 (22.Bh7 Kf8 23.Bg6+-) 22...Rc8 (22...Bf6 23.Re1 Bd4 24.Re6+-) 23.Bh7 (23.Ne5 Rd4 24.Bg6 Bf6 25.Bf7 Kf8 26.Be6 g6 27.Bc8 gh5 28.Nd7 Ke7 29.Nb6 Bc8 30.Nc8 Kd8+-) 23...Kf8 (23...Kf7 24.Ne5 Kf6 25.Nd7 Kf7 26.Rh3 Rd4 27.Nb6+=) 24.Bg6 (24.Ne5 Ke8 25.Bg6 Kd8 26.Rh8 Rf8+-) 24...Bf6 25.Re1 Bd4 (25...Ke7!?+-) 26.Nd4+- Rd4 27.Rhe5 Kg8 (27...Rdc4 28.Re6 Rc1 29.Kf1+-) 28.Re6 Rf8 29.Re8 (better 29.Rb6!? Bc8 30.Rb8+-) 29...Rdf4 30.Rf8 Rf8 31.f3 (31.Re7 Ba8+-) 31...Bc8+- 32.Re8 (32.Re7 d4+-) 32...Bd7 (32...Re8 33.Be8 Kf8 34.Bc6+-) 33.Rf8 (33.Re5!? Bb5 34.Rd5+-) 33...Kf8+= 34.a4 Ke7 35.Kf2 Kd6 36.Ke3 Kc5 37.h4 (37.Bc2!?+=) 37...Kb4= 38.Bc2 Kc3 39.Bd1 d4 40.Ke2 (40.Ke4 d3 41.Ke3 Bf5+=) 40...Bf5 Black prepares the advance d3 (better 40...Be6!? 41.h5 Bc4 42.Ke1 d3-/+) 41.g4= Bc2 42.f4 d3 43.Ke1 d2 44.Ke2 Bd3 45.Ke3 Bc2 46.Bf3?? (better 46.Ke2=) 46...d1Q (46...d1B 47.Bd1 Bd1 48.g5-+) 47.Bd1 Bd1 48.g5 Ba4 (48...Kb4 49.f5 Ka4 50.f6 gf6 51.gf6-+) 49.f5 Bc2 (49...Bb5? 50.h5 Bc4 51.h6 gh6 52.gh6+-) 50.f6 gf6 51.gf6 Bg6 52.Kf4 a4 53.Kg5 Bf7 54.h5 a3 55.h6 a2 56.h7 a1Q 57.h8Q Qg1 58.Kf4 Qf2 59.Ke4 Qd4 60.Kf5 Qd5 61.Kf4 Kb4 62.Qg7 Kb5 63.Ke3 Kc6 64.Qh8 (64.Kf4 b5-+) 64...Qe5 (64...Qc5!? 65.Kd3 Kd5 66.Qa8 Ke6 67.Qe4 Kf6 68.Qh4 Ke6 69.Qe4 Qe5 70.Qc4 Qd5 71.Kc3-+) 65.Kd2 Qd4 66.Ke2 Bc4 67.Kf3 Bd5 68.Ke2 Qe4 69.Kd2 Kb5 (69...b5 70.Qh6 Kd7 71.Qf8-+) 70.Qd8 (70.Qf8 Qf4 71.Kc3 Qe3 72.Kc2 Be4 73.Kd1 Bf3 74.Kc2 Qe2 75.Kc3 Qc4 76.Kb2 Qd4 77.Kc2 Be4 78.Kb3 Qd3 79.Kb2 Qc2 80.Ka3 Qc1 81.Kb3 Bd5) 70...Qd4 71.Ke1 Qe3 72.Kf1 Qe6 (72...Kc6 73.Qc8 Kd6 74.Qd8 Ke5 75.Qc7 Kf5 76.Qh7 Kg4 77.Qg7 Qg5 78.Ke1-+) 73.Kf2 Kb4 74.Qf8 (74.Kg3 Qe3 75.Kg4 Qd4 76.Kg5 Qd2 77.Kh4 Qf4 78.Kh3 Be6 79.Kg2 Kc4-+) 74...Ka4 (74...Kc4 75.Qe7-+) 75.Qg7 b5 76.Qa7 Kb3 77.Qd4 Qf5 (77...b4 78.Kg3-+) 78.Kg3 (78.Ke2 Qc2 79.Ke3 Qc3 80.Qc3 Kc3-+) 78...b4 79.Qd1 (79.Kh4 Kc2 80.Qb4 Qf6 81.Kg4 Be6 82.Kg3 Qg5 83.Kf2 Qf5 84.Ke3 Qh3 85.Kf2 Qh2 86.Kf3 Bd5 87.Kg4 Qh1-+) 79...Kc4 80.Qc1 Kb5 81.Qb2 Qf3 82.Kh2 Qf4 83.Kh3 Be6 (83...Bf3 84.f7 Qf7 85.Qe5 Qd5 86.Qb8 Kc4 87.Qf4 Qd4 88.Qc1 Qc3 89.Qf4 Be4 90.Kh4-+) 84.Kg2 Qg5 (better 84...Qe4 85.Kf2-+) 85.Kf2 Qf4 86.Kg2 Bc4 87.Qa1 Qd2 88.Kg1 (88.Kg3 Qc3 89.Qc3 bc3-+) 88...Qc3 (better 88...Qe3 89.Kg2 Bd5 90.Kf1 Qf3 91.Ke1 Qh1 92.Ke2 Qa1 93.Kf2 Qf6 94.Kg3 Qf3 95.Kh4 Qf4 96.Kh3 Bc4 97.Kg2 Bf1 98.Kg1 Qf3 99.Kh2 Qg2) 89.Qa7 (89.Qd1 Qf6 90.Qd7 Qc6-+) 89...Qf6 (89...Qg3 90.Kh1 Bd5) 90.Qd7-+ Qc6 91.Qa7 (91.Qg7 b3 92.Qh8 Qc5 93.Kg2 Bd5 94.Kf1 Qc1 95.Ke2 b2 96.Qe8 Bc6 97.Qb8 Kc4 98.Qg8 Kb4 99.Qb8 Bb5 100.Kf3 Qh1 101.Kg3 Qg1 102.Kh4 b1Q 103.Qd6 Kb3 104.Qg3 Qg3 105.Kg3 Qg6 106.Kf3 Qg5 107.Kf2 Qf4 108.Kg2 Bf1 109.Kg1 Qf3 110.Kh2 Qg2) 91...Qc5 (91...Qc5 92.Kg2 Qa7 93.Kf3 Bd5 94.Kf4 b3 95.Ke5 Qe7 96.Kf4 b2 97.Kf5 b1Q 98.Kf4 Qbe4 99.Kg3 Q7h4) 0–1. Storey,Ch (2210) – Baum,B (2265), 124th ch–SCO Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7)

7.Nd4 Ng6=+ 8.Qe2 (8.d3 Ne5 9.dc4 Nc4 10.Bc4 dc4=+) 8...a6 (8...Nd7!?-/+) 9.g3 (9.d3 cd3 10.Qh5 a5=+) 9...Bd7 10.a4 (10.d3 cd3 11.Qe3 Nc6=) 10...Nc6 11.Nc6 Bc6 12.Bg2 Be7 13.0-0 Bd7 (13...Qc7 14.Re1=+) 14.Na3 (14.a5 0-0=+) 14...0-0 (14...Ba4 15.Nc4 Bb5 16.d3=+) 15.Nc2 Re8 (15...a5 16.b5=) 16.f4= Bc8 (16...f6 17.a5=) 17.Nd4 f5 (17...a5 18.b5=) 18.Nc6 White plans a5 (18.d3 cd3 19.Qd3 a5+-) 18...Qc7 19.Ne7 Ne7 20.d3 cd3 21.Qd3 Rb8 (21...Bb7 22.Be3+=) 22.a5 (22.Be3 Bb7+=) 22...b5 (22...ba5 23.Ra5 Bd7 24.Rc5+= (24.Ra6?? Bb5 25.Qf3 Ba6-+)) 23.Be3+= Bd7 24.Bc5 Nc8 25.h3 g6 (25...Bc6 26.Rad1+-) 26.g4 Kh8 27.Qg3 Rg8 (27...Bc6!?+-) 28.Qh4+- Qd8 29.Qf6 Qf6 30.ef6 Be8 31.f7! Bf7 (31...Bf7 32.Bd4 Decoy) 32.Bd4 Rg7 33.gf5 (33.Be5 Ra8+-) 33...gf5 34.Rf3 Kg8 35.Bg7 (35.Be5 Rb7 36.Bg7 Kg7+=) 35...Kg7+= 36.Rg3 Kh8 (36...Kf6 37.Kf2+=) 37.Kf2+- Nd6 38.Rg1 (38.Ke3 Rc8 39.Kd4 h5+-) 38...Ne4 (38...Rc8 39.Re3+=) 39.Be4+- fe4 40.Rg7 Rf8 41.Ke3 Rg8 (41...h6 42.Kd4+-) 42.Rg8+- Bg8 43.Kd4 Bf7 44.Ke5 (44.Kc5 Bh5+-) 44...e3 (44...h6 45.Kd6+-) 45.Kf6 (45.Re1 Kg7+-) 45...Bg6 (45...Bh5 46.Ke6 Be2 47.f5+-) 46.Ke6 e2 47.f5 (worse 47.Kd5 Kg7 48.f5 e1Q 49.Re1 Bf5+-) 1–0. Guillen,Xan (2090) – Rodriguez Calvo,Miriam, Burgas op–8, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.a3 Ne7 6.c3 c4)

5.b5 a6

6.Na3 Bd7 (6...Nh6 7.Be2=) 7.c3 (7.c4!?+=) 7...Nh6 (7...c4 8.Rb1=+) 8.d4 (8.Qa4 Qc7 9.d3 Ra7=+) 8...cd4=+ 9.Nd4 (9.Qd4!? Nf5 10.Qa4=+) 9...Qc7-/+ 10.Qb3 (10.Nac2 Qe5 11.Be2 Bb5 12.Nb5 ab5-/+) 10...Qe5 11.Be2 Bc5 12.Be3 0-0 (12...ab5 13.Nab5 0-0 14.0-0-/+) 13.0-0 Qd6 (13...ab5 14.Nab5 Nc6 15.Rad1-/+) 14.Nac2 e5 (14...ab5 15.Rad1-/+) 15.Nf3 (15.Rad1!?=+) 15...ab5-/+ 16.Bh6 (16.Rfd1 Be6 17.Bh6 gh6 18.Bb5 Ra5-/+) 16...gh6 17.Rfd1 Be6 (17...e4 18.Nfd4-/+) 18.Bb5 Qc7 (18...Ra5 19.a4-/+) 19.Re1 (19.a4 Na6-/+) 19...Bd6 (better 19...e4 20.Nfd4 Nd7-/+) 20.g3? (20.Nb4!? Ra5 21.a4=+) 20...Na6 (20...Ra5 21.Rab1-+) 21.Ba6 (21.Ne3 d4 22.Nd5 Bd5 23.Qd5 dc3 24.Ne5 Be5 25.Re5 Rfd8-+) 21...Ra6 22.Ne3 (22.Nb4 Ra5 23.Qb2 f6-+) 22...Qc6 (better 22...d4!? 23.Nd5 Qb7 24.c4-+) 23.Qd1 Ra5 (23...Ra4!?-+) 24.Nh4-/+ f5 (24...Rc8 25.Nef5 Bf8 26.Re5 Qc3 27.Re3-/+) 25.Qh5 Qd7 26.Qh6 f4 (26...Qe7 27.Qh5 Qf6 28.Nf3-/+) 27.Neg2 (27.gf4 ef4 28.Nc2+=) 27...Bh3 28.gf4 e4?? (better 28...ef4 29.Rab1 Bc7=+) 29.Re3+- Bf5?? (29...Kf7 30.Rg3 Ke8 31.Rh3 Qh3 32.Qd6 Qc3 33.Qe6 Kd8+-) 30.Rg3 (better 30.Nf5 Rf5 31.Rg3 Kh8+-) 30...Kh8 (30...Bg4 31.h3 Kf7+-) 31.Ne3 d4 32.Nef5 (32.Nhf5?! Rff5 33.Nf5 Rf5 34.cd4 Bf4 35.Qb6 Bg3 36.hg3 Rf8+-) 32...Raf5 33.Ng6 Kg8 34.Nf8 (34.Nf8 Kf7 35.Qh7 Ke8 36.Qd7 Kf8 37.Qf5 Ke8 38.Qe6 Kd8 39.Rg8 Bf8 40.Qf7 dc3 41.Rf8) 1–0. Petzold,Hans (2040) – Tchetchelnitski,Boris (2155), Hamburg Germany, Senioren Championship6, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.Bb2 ab5 7.Bb5 Bd7 8.a4 Bb5 9.ab5 Ra1 10.Ba1 Qd7=+.

6.Bb2 ab5 7.Bb5 Bd7 8.Nc3 Ne7 9.0-0 Ng6 10.Re1 (10.Qe2 d4 11.Ne4 Qc7=) 10...Be7 11.a4 0-0 12.d3 Nc6 13.g3 (13.Qe2 d4 14.Ne4 Nb4=+) 13...Qc7 e5 becomes the focus of attention 14.Nb1 f6 15.Qe2 (15.ef6 Bf6 16.Bf6 Rf6=+) 15...Rae8 (15...Nce5!? 16.Ne5 fe5-/+ (16...Ne5?! 17.Bd7 Qd7 18.f4=)) 16.Nbd2 f5 (16...Nce5 17.Ne5 fe5 18.Nf3 Bb5 19.ab5=+) 17.h4= Ra8 18.Nb3 (18.h5 Nh8=) 18...Nh8 19.Qd2 Nf7 20.c4 d4 21.Qe2 Bc8 22.Bc1 h6 23.h5 Bb7 24.Bd2 Na5 (24...Na7!?=+) 25.Na5= ba5 26.Bf4 (26.Rab1 Rab8=) 26...Bg5 (26...Rab8 27.Rab1=) 27.Kh2 Kh7 28.Nh4 (28.Bg5 hg5 29.Nd2 g4-/+) 28...Nh8 (28...Bh4 29.gh4 Qe7 30.Kg3=+) 29.Qd2 (29.Bg5 hg5 30.Ng2 f4 31.gf4 Rf5-/+) 29...Bd8 (29...Bh4 30.gh4 Bf3 31.Kg3 Bh5 32.Rab1-+) 30.Rab1 Ra7 (30...Bh4 31.gh4 Bf3 32.Kg3 Bh5 33.Rb2-+) 31.Rg1 Ba8 32.Kh3 (32.Ng2 Bf3=+) 32...Qf7 (32...Bh4!? 33.gh4 Bf3-/+) 33.Qe2= Rg8 34.Rb2 g5 35.hg6 Ng6 36.Ng6 Qg6 37.f3 (37.Kh2!?=+) 37...Bg5 38.Bg5 hg5 39.g4? (better 39.Kg2 g4 40.Qd2-/+) 39...Qh6 40.Kg2 fg4 41.Kf1 Rf7 (41...Rf7 42.Ke1 Qh4 43.Qf2 Rf3 44.Qh4 gh4-+) 0–1. Ridolfo,Enrico (2020) – Borgo,G (2355), 5th Palmanova Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.b5 a6)

6.Bb2 ab5 7.Bb5 Bd7 8.Qe2 Bb5 9.Qb5 Nd7 10.0-0 Ne7 11.Re1 Qc7 12.d4 (12.Nc3 c4=) 12...Nc6 13.c3 Be7 14.Nbd2 0-0 15.Qd3 (15.Qe2 Ra4-/+) 15...Ra4-/+ 16.Qc2 Rfa8 17.Bc1 (17.a3 R8a7-/+) 17...Qa7 (17...R8a7 18.Qb2-/+) 18.a3 (18.Bb2 cd4 (worse 18...Ra2 19.Ra2 Qa2 20.Ra1 Qa1 21.Ba1 Ra1 22.Nf1=+) 19.cd4 Nb4-/+) 18...cd4-+ 19.cd4 Nd4 20.Nd4 Rd4 21.Bb2 Ra4 22.Qc6 (22.Re3 Bc5 23.Rh3 h6-+) 22...h6 (22...Nc5 23.Bc1-+) 23.Nf3 (23.Red1 b5 24.Rab1 Bc5 25.Qb5 Bf2 26.Kh1 Bc5-+) 23...Rc4 24.Qb5 Qa4 25.Qa4 Raa4 26.Rec1 Bc5 (26...b5 27.Rcb1-+) 27.Kf1 (27.Rc4 Rc4 28.Rd1 Rc2-+) 27...Kf8 28.g3 (28.Rc4 dc4 29.Ke2 Ke7-+) 28...Ke7 29.Nd2 (29.Rc4 dc4 30.Ke2 h5-+) 29...Rc1 30.Rc1 f6 (30...Bd4 31.Bd4 Rd4 32.Nf3-+) 31.ef6 gf6 32.Nb3 Kd6 (32...Ba3?! 33.Ra1 Bb2 34.Ra4-/+) 33.Nc5 (33.Rd1 e5-+ (33...Ba3?! 34.Ra1=+)) 33...bc5 (33...Nc5?! 34.Bf6 Ra3 35.Bg7-/+) 34.Ke2 e5 Black intends d4 35.f3 d4 36.Kd3 (36.Rd1 Kd5-+) 36...Kd5 37.Rb1 f5 38.Bc1 e4 39.fe4 fe4 40.Ke2 Rc4 41.h4 Rc2 (41...h5 42.Bf4-+) 42.Kd1 Rg2 43.Rb7 (43.Bh6 e3 44.Be3 de3-+) 43...Rg1 44.Kd2 (44.Kc2 Kc6 45.Ra7 d3 46.Kb2 Rg2 47.Kb3-+) 44...Ne5 (44...Ne5 45.Rb1 e3 46.Kc2 d3 47.Kb2 e2-+) 0–1. Vermeulen,Bram – Barendse,Ted (2185), BEL–chT9899 Antwerp, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.b5 a6)

6.Bb2 Ne7 7.a4 Ng6 8.g3 ab5 9.ab5 (9.Bb5!? Bd7 10.h4=) 9...Ra1-/+ 10.Ba1 Nd7 11.d4 cd4 12.Bd4 Qc7 Pawn e5, live or die! 13.Qe2 Bb7 14.Bg2 Be7 15.0-0 0-0 16.Rc1 Bb4 17.h4 Rc8 18.h5 Ne7 19.Nbd2 Nf5 20.Bb2 Bc3 21.Bc3 Qc3 22.g4 (22.Nb3!?=+) 22...Nd4-/+ 23.Nd4 Qd4 24.c4 Ne5 25.Kh2? (better 25.g5-+) 25...Nd3 26.Nb3 (26.Rc2-+) 26...Qf4 27.Kg1 Nc1 (27...Nc1 28.Qd2 Rc4 (28...Nb3 29.Qf4 Rc4 30.Qb8 Bc8 31.Qb6+-; 28...Qc4 29.Nc1 Qc1 30.Qc1 Rc1 31.Kh2-+) 29.Qf4 Ne2 (29...Nb3 30.Qb8 Bc8 31.Qb6+-) 30.Kf1 Nf4-+) 0–1. whitecat25 – marekt, ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.b5 a6)

6.c3 ab5 7.Bb5 Bd7 8.Bd3 Ne7-/+ 9.0-0 (9.a4 Nbc6 10.0-0 Ng6-/+) 9...Ng6 (9...Nbc6 10.a4=+) 10.Bc2 (10.c4 Nf4 11.Bc2 dc4-/+) 10...Nc6 11.Re1 Qc7 Increases the pressure on e5 12.Bg6 hg6 13.d3 (13.Na3 Ra5-/+) 13...Be7 14.Bf4 (14.Na3 Qb7-/+) 14...Ra6 (14...0-0 15.Nbd2-/+) 15.Nbd2 (15.a4 0-0-/+) 15...Qa7 (15...0-0 16.Qc2-/+) 16.Qc2 (16.a4 0-0-/+) 16...0-0 17.Nb3 (17.Reb1 Ra8-/+) 17...Ra8 18.Nc1 (18.a3 Ra4 19.g3 Qa6-/+ (worse 19...Ra3 20.Ra3 Qa3 21.Ra1 Qa1 22.Na1 Ra1 23.Kg2=)) 18...b5 (better 18...Ra3-/+) 19.g4 (better 19.Be3!?-/+) 19...Ra4-+ Black prepares the advance d4 20.Qd2 d4 (better 20...g5 21.Ng5 Bg5 22.Bg5 Rg4 23.Kf1 d4-+) 21.Re4? (better 21.cd4 Nd4 22.Nd4 Rd4 23.Ne2-+) 21...dc3 22.Qc3 Re4 (22...Nb4!? 23.Rb1-+) 23.de4 Qa4 24.Qd3 (24.Qe3 Nb4 25.Qe2 Bc6-+) 24...Rd8 25.Qe2 (25.Ne2 Be8 26.Qe3 c4-+) 25...c4 26.Be3 (26.Rb1 Bc8-+) 26...Bc8 27.Kg2 Bb7 28.Bb6 Rd7 29.Rb1 (29.Be3 c3 30.Bb6 Nb8-+) 29...Nb4 30.Kg3 (30.Bd4 Qa8 31.Bc3 Nd3-+) 30...Nd3 (30...Qa8 31.a3 Qa3 32.g5-+) 31.Nd3 (31.h4 Nc5 32.Bc5 Bc5-+) 31...cd3 (31...Rd3?! 32.Bc7-+) 32.Qe3 (32.Qd2 Qe4 33.Qe3 Qd5-+) 32...Be4 (better 32...d2 33.Nd2 Rd2-+) 33.Bd4?? (33.Nd2 Bd5 34.Bc5-+) 33...Bf3 34.Kf3 (34.Qf3 Rd4 35.Qd1 Qc4-+) 34...Qd4 (better 34...Rd4 35.h3 d2 36.Qe2-+) 35.Rb5 (35.Qd4 Rd4 36.Rd1-+) 35...d2 (35...d2 36.Qd4 Rd4-+) 0–1. Nakabo,Peninah – Avalos,Leticia (1700), Olympiad Women, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.Nc3 Ne7 7.d4 (7.Bb2 Ng6 8.g3 d4=+) 7...ab5 (7...Nf5 8.dc5 Bc5 9.Bd3=) 8.Nb5 (8.Bg5 Qd7 9.Bb5 Nbc6+=) 8...Nec6 (8...Nf5 9.Bd3 Nd4 10.Nfd4 cd4 11.Nd4=) 9.Bg5 (9.c4 dc4 10.Bc4 Nd4 11.Nfd4 cd4 12.Qd4 Qd4 13.Nd4 Bc5=) 9...Qd7 10.c3 (10.c4 h6 11.Bd2 Na6 12.cd5 ed5=) 10...c4 (10...h6!? 11.Bf4 Ba6+=) 11.a4+= Ba6 (11...Na5 12.Be2+=) 12.Rb1 (12.Bf4 Bb5 13.ab5 Ra1 14.Qa1 Na5+=) 12...Na5 (12...Na7 13.Na7 Qa7 14.Be2+=) 13.Nd2 (13.Be2 Bb5 14.ab5 Be7+-) 13...Nbc6 14.Be2 (14.Qf3 Be7 15.Qg3 Kf8+=) 14...Na7 (14...h6 15.Bf4+=) 15.Na7 Qa7 16.0-0 Nc6 (16...Rb8 17.Qc2+=) 17.Bg4 (17.Qc2 Rb8+=) 17...Be7 (17...h6 18.Be3+=) 18.Be3 (18.Be7 Ne7 19.Qc1 0-0+=) 18...Bc8 (18...0-0 19.g3=) 19.Qf3 Bd7 (19...0-0 20.Qg3=) 20.Qg3 0-0 21.Bd1 Rfe8 (21...g6=) 22.Be2 (22.Bc2!?=) 22...Bf8=+ 23.Qh4 (23.Bd1 Qa5 24.Bf4 Ne7=+) 23...h6 (23...Qa4!? 24.Rb6 Qc2-/+) 24.Qg4=+ Ne7 (24...Qa4 25.Bh6 b5 26.Rfc1=+) 25.Bh6= Ba4 26.Ra1 (26.Bg5 Qa5 27.Rfc1 b5=) 26...Qd7 0–1. Schulz,Hans_Juergen (2075) – Porth,Hartmut (2210), 2rd Hamburg HSK Elo op, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 ab5 7.Bb5 Bd7 8.Nc3 Nc6 9.Rb1 (9.0-0 Nge7=) 9...cd4 (9...Nd4 10.Bd7 Qd7 11.0-0= (worse 11.Rb6 Qc7 12.Rb1 Nf3 13.Qf3 Qe5 14.Kd1 Nf6-/+)) 10.Bc6 Bc6 11.Nd4 Qc7 (11...Qd7 12.0-0 Bc5 13.Bg5=) 12.0-0 (12.Nc6?! Qc6 13.Qd3 Bc5=+) 12...Bc5 (12...Ne7 13.Ncb5 Qe5 14.Re1+-) 13.Qg4 (13.Ncb5 Bb5 14.Nb5 Qc6+- (14...Qe5? 15.Bb2 d4 16.Re1+-)) 13...Ne7= (13...Qe5? 14.Nc6 Qc3 15.Bb2+-) 14.Nc6 (14.Ncb5 Bb5 15.Qg7 Rg8 16.Nb5 Qb8 (16...Rg7?? 17.Nc7 Kd7 18.Na8+-) 17.Qh7 Qe5=) 14...Qc6 15.Qg7 Rg8 16.Qh7 Bd4 17.Nb5 Be5 18.f4 Rg7 (18...Bf6 19.Ba3=) 19.Qd3 (better 19.Qh3 Bf6 20.Bb2 Qc5 21.Kh1 Bb2 22.Rb2=) 19...Bd6? (better 19...Bf6=) 20.Nd6+- Qd6 21.Be3 Nc8 (21...Nc6 22.Rb6 d4 23.Qb5 de3 24.Rc6+- (24.Qc6?! Qc6 25.Rc6 Ra2+-)) 22.Bd4 (22.f5 Kd8+-) 22...Rg8 (better 22...Rg4 23.Qf3 Rh4+-) 23.Qh7 Qf8 (23...Rg4 24.f5 e5 25.Qh8 Kd7 26.Be5 Qc5 27.Kh1+-) 24.f5 Ra7 (24...e5 25.Be5 Ra2+-) 25.fe6 f6 (25...Rg4 26.Rbe1 f5 27.Qh5 Ke7 28.Rf5 Re4 29.Qg5 Kd6 30.Rf8 Re1 31.Kf2 Re4 32.Qd8 Kc6 33.Qc8 Kb5 34.Qc3 Ka6 35.Qa3 Kb7 36.Qd6 Rf4 37.Rf4 Ra6 38.Rf8 Ra2 39.Qb6) 26.Qh5 (26.Qh5 Ke7 27.Qd5+-) 1–0. Chiricuta,Marius (2225) – Tudor,Ioan (1905), Trofeul Techirghiol – Open, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 c4 7.ba6 (7.Nc3 ab5 8.Nb5 Ba6=) 7...Qc7 (7...Nc6 8.Be2=) 8.c3 (8.Be2 Nc6+=) 8...b5 (8...Ba6 9.Be2=) 9.g3 (9.Be2 b4=) 9...Na6 (9...Nc6 10.Bh3=+) 10.Bg2 (10.a3 Ne7=) 10...b4 11.0-0 bc3 (11...Nh6!?=+) 12.Nc3+= Bb4 (12...Nb4 13.Nb5 Qb6 14.a4+-) 13.Nb5+- Qc6 14.a4 Nc7 (14...Ne7 15.Rb1 c3 16.Qb3+-) 15.Rb1 (15.Nd6 Bd6 16.ed6 Qd6+-) 15...Be7 (15...Nb5 16.Rb4 Nc3 17.Qc2 Na4 18.Nd2+-) 16.Nd6 Bd6 17.ed6 Qd6 18.Bf4 Qd8 (18...Qd7 19.Ne5 Qa4 20.Qh5+-) 19.Ne5 Ba6 (better 19...Nf6!? 20.Nc4 dc4 21.Bc7 Qc7 22.Ba8 0-0+-) 20.Qh5+- Qe7 (20...g6 21.Qf3 f6 22.Nc6+-) 21.Nc6 Qd7 22.Nb8 Qd8 23.Na6 (better 23.Qe5 Ne7 24.Qc7 Qc7 25.Bc7+-) 23...Na6 24.Rb7 (24.Rfe1 Kf8 25.Rb7 Ne7+-) 24...Ne7+- 25.Bg5 Nc7 26.Be7 Qe7 27.Qe5 0-0? (better 27...Kd8 28.Qg7 Re8+-) 28.Rc7+- (28.Qc7?! Qc7 29.Rc7 Ra4+=) 28...Qb4 (28...Qd8 29.Ra1+-) 29.Bh3 (better 29.f4 g6 30.f5 gf5 31.g4+-) 29...Ra6 30.a5! c3? (30...Ra5 31.Be6 Combination; 30...Qa5 31.Bg4 Combination) 31.Rc1 Ra5 (31...Qa5 32.R1c3 Qb6+-) 32.Be6 Qb2 (32...h5 33.Qh5 fe6 34.Qg4+-) 33.Bf7 (33.R1c3!? Raa8 34.Bf7 Kh8+-) 33...Kh8 34.R7c3 (34.Rf1 Qd2 35.Qe7 Raa8 36.Bd5 Qd4 37.Ba8 Ra8+-) 34...Raa8 (34...Ra1 35.Qe3+-) 35.R3c2 Qb7 (35...Qb6 36.Be6 Qd8+-) 36.Bd5 (36.Bd5 Qb8 37.Rc7+-) 1–0. Hernandez Garcia,M (2005) – Momoitio Garcia,A (1640), 26th Open Internacional Ayuntamineto De, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 Qc7 7.c3 ab5 8.Bb5 Bd7 9.Bd7 Qd7 10.0-0 Ne7 11.Qb3 Qc7 12.Na3 Nec6 13.Nb5 Qd7 14.Bg5 h6 15.Be3 Na5 16.Qb1 (16.Qa4 Nbc6+=) 16...Nc4 17.a4 Nc6 18.Nd2 N6a5 19.Nc4 Nc4 20.Qb3 (20.Qd1 Qc6=) 20...Be7=+ 21.Rfd1 Qc6 22.Rf1 0-0 23.Qd1 Rfc8 24.Qg4 Kh7 25.Qh5 Qe8 26.Qe2 Ra5 27.f4 f5 28.ef6 Bf6 (28...Ne3? 29.Qe3 Bf6 30.Nd6+/-) 29.Kh1 Qg6 30.Qf2 Qd3 31.Rfe1 Be7 32.Rad1 Qf5 33.dc5 (33.Ra1 Qg6=+) 33...bc5 34.h3 (34.Ra1 Nb6-/+) 34...h5 (34...Ra4 35.Kg1-+) 35.Qf3 (35.Ra1 h4-/+) 35...h4 (35...Ra4 36.Ra1 Ra1 37.Ra1-+) 36.Bd4 (36.Ra1!?-/+) 36...Ra4 37.Be5 Bf6 (37...Rc6 38.Qf2-+) 38.Nd6 (38.Bf6!? Qf6 39.Qg4=+) 38...Nd6-+ (38...Ne5 39.Re5 Qf4 40.Qh5 Qh6 41.Nc8 Qh5 42.Rh5 Kg6 43.Rh8 Bc3 44.Nd6+/-) 39.Bd6 Ra3 40.Ra1? (better 40.Be5-/+) 40...Rc3-+ 41.Qg4 (41.Qf1 Rc2 42.Rad1 c4-+) 41...Rg3 42.Qf5 ef5 43.Ra7 (43.Be5 Rg6-+) 43...c4 44.Be5 Rg6 (44...Be5 45.fe5 d4 46.e6-+) 45.Rd7 Be5 46.fe5 c3 47.Rd5 (47.e6 c2 48.Rc1 Re6 49.Rd5-+) 47...c2 48.Rc1 Rb6 49.Ra5 (49.Kh2 Rb1 50.Rc2 Rc2 51.Rd4-+) 49...Rb1 50.Ra1 Ra1 (50...Ra1 51.Ra1 Rd8-+) 0-1. Camison Zornoza,Cesar (1870) - Iagar,R (2135), V Xativa Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.b5)

6.d4 cd4 7.Nd4 Ba6 8.Ba6 Qa5 9.Nd2 Qa6 10.a4 (10.c4 Nd7 (10...dc4? 11.Qf3 Nc6 12.Qc6 Qc6 13.Nc6+-) 11.Qe2 Qa4=) 10...Nc6 11.Nb5 (11.Bb2 Bb4 (11...Ne5? 12.Nb5 Qc6 13.Be5+-) 12.Qe2 Qe2 13.Ke2 A) worse 13...Ne5 14.Nb5 f6 15.Nc7 Kd7 16.Na8 Bd2 17.Be5 (17.Kd2?! Nc4 18.Ke2 Ne7+=) 17...fe5 18.Rab1+- (18.Kd2?! Nf6+-); B) 13...Nge7=) 11...Rc8 (better 11...Qb6=+) 12.Qe2 Qa5 13.0-0 a6 14.Nb3 Qd8 15.N5d4 Nge7 (15...Nd4 16.Nd4 Rc4 17.Nf3=) 16.Qa6+= Ne5 17.Na5 Ra8 18.Qb5 Qd7 19.Nb7 (19.f4 Ng4=) 19...N7c6 20.Nc6 (20.Be3=) 20...Qc6 (better 20...Nc6!? 21.Nc5 Qc8=) 21.Bf4+= f6?? (21...Qb5 22.ab5 Ra1 23.Ra1+=) 22.Na5?? (better 22.Be5 Rc8 23.Bg3+-) 22...Qb5+= 23.ab5 Bb4 (23...Ng6 24.Be3+=) 24.Be5 Ra5 25.Ra5 Ba5 26.Bd6 (better 26.Ra1!? fe5 27.Ra5=) 26...Kd7=+ 27.Ba3 (27.Bf4!?=+) 27...Rc8-/+ 28.Rb1 Bb6 29.Rb2 Bd4 30.Rb1 (better 30.Rb4 e5 31.b6-+) 30...Bb6?? (better 30...Rc2!? 31.Rf1 Kc7-+) 31.Rc1 (31.Rb2 e5 32.Bb4-/+) 31...g6 (31...Bc5 32.Bc5 Rc5 33.b6-+) 32.Kf1 e5 33.Ke2 Rc3 34.Bb4 Rc4 35.c3 Bc5 Black prepares d4 36.Rd1 (36.Bc5!? Rc5 37.Ra1-/+) 36...Bb4-+ 37.cb4 d4 38.Rb1 h5 (38...Kc7 39.Ra1-+) 39.Rb2 (39.Kd3 Rc3 40.Kd2 Kc7-/+) 39...Kd6 (39...Kc7 40.Ra2 Rb4 41.Ra7 Kb6 42.Ra6 Kb5 43.Rf6-+) 40.Kd3 Kd5 41.f3 (41.h4!?-+) 41...f5 Black prepares the advance e4 42.b6 e4 43.fe4 (43.Ke2 Rc6 44.b7 Rb6-+) 43...fe4 44.Ke2 (44.Kd2 Rc8-+) 44...Kc6 (44...Rc6 45.b7 Rb6 46.Kd1-+) 45.b7 Kb7 46.b5 Kb6 47.h3 h4 48.Kd2 Rc5 49.Rb4 Rd5 Black plans d3 50.Ke2 Ka5 51.Rc4 (51.Rb2 Rb5 52.Rd2 Rd5-+) 51...Kb5 52.Rc8 d3 (52...d3 53.Kd1 Re5-+) 0–1. Smrckova,S – Cecil,P (1965), 4th Pilsen Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

5.c3 c4

6.d3+= b5 7.a4+- Bd7 (7...cd3!? 8.ab5 (8.Qd3?! ba4 9.Ra4 Bd7+=) 8...Qc7 9.Bd3+-) 8.ab5 Bb5 9.Na3 Qb6 (9...Bc6 10.dc4 a5+-) 10.Be3 Qc6? (10...Qa6 11.Nb5 Qb5 12.dc4 dc4+-) 11.Nd4 (11.Nb5?! Qb5 12.dc4 dc4+-) 11...Qc7 (11...Ba4 12.Nc6 Bd1 13.Nb8+- (13.Rd1?! Nc6 14.Nb5 0-0-0+-; 13.Kd1?! Nc6 14.dc4 Ne5+-)) 12.Ndb5 (better 12.Nab5 Qb7 13.dc4 a6+-) 12...Qe5 (12...Qd8 13.dc4 a6 14.Nd4+-) 13.dc4 (better 13.d4 Qe4 14.Nc7 Kd8 15.Na8 Bd6+-) 13...Nf6 (13...a6 14.Nc2 dc4 15.Qf3 ab5 16.Ra8+-) 14.Qd4 Qd4 15.Bd4 (worse 15.cd4 Bb4 16.Kd1 Kd7+-) 15...Kd7 16.Bf6 gf6 17.0-0-0 (better 17.cd5!? ed5 18.Nc2 Bh6+-) 17...a6 18.Nd4 Bh6 (18...a5 19.Nac2 ab4 20.cb4 dc4 21.Bc4+-) 19.Kb2 Rc8 (19...a5 20.ba5 Bf8 21.Nb3+-) 20.cd5 ed5 21.Nf5 Bf8 22.Nc4 (22.Bc4 Nc6+-) 22...Kc6 23.Na5 Kb6 24.Ne3 Bg7 25.Nd5 Ka7 26.Be2 (26.Bd3!? Nc6 27.Nc6 Rc6 28.Bh7 Re8+-) 26...f5 27.Rd3 (better 27.Bd3 Nc6 28.Nc6 Rc6 29.Bf5 h6+-) 27...Re8 (27...Nc6 28.Nc6 Rc6 29.Ne7+-) 28.Bf3 Rd8 (28...Be5 29.Re1 Re6 30.Re5 Re5 31.Nc7+-) 29.Nf4 (29.Nf4 Rd3 30.Nd3+-) 1–0. Londers,J (1875) – Gaudin,R, 10th La Fere Open, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d3 cd3 7.Bd3 a5+=.

6.d3+= cd3!? 7.Bd3 Qc7+=.

6.d4 a5 7.ba5 Ra5 8.Be2=.

6.d4 cd3 7.Bd3 Ne7 8.0-0 Qc7 9.Re1 Nec6 (9...Ng6 10.Qe2+=) 10.h4 (10.Bf4!?+=) 10...Nd7 Now all is on e5 11.Qe2 Bb7 12.h5 Ne7 13.Bb2 Nc6 (13...Rc8 14.Na3 Nc6 15.Nb5=) 14.Na3 (14.Nbd2 Rc8=) 14...a6 15.Nc2 h6 (15...Be7 16.a3=) 16.a4+= White intends b5 16...a5 17.b5 Ncb8 18.Ncd4 Nc5 19.Bc2 Nbd7 20.Nd2 (20.Ba3 Be7=) 20...0-0-0 (20...Be7!?=) 21.c4+= Be7 22.cd5 Bd5 23.Nc4 (23.N2f3 Nf8+-) 23...Bc4= 24.Qc4 Ne5 25.Qe2 Bf6 26.Rac1 Ned3 27.Bd3 Bd4 28.Ba3 Kb8 29.Qf3 (29.Rc4 Rhf8= (worse 29...Nd3 30.Rc7 Kc7 31.Rd1+-)) 29...Qb7 (29...g6 30.Bc5 Bc5 31.Rc4=+) 30.Be4 (30.Qg3 Ka7 31.Bc5 Bc5=) 30...Ne4=+ 31.Re4 Rd7 (31...Qd5 32.Qf4 e5 33.Qf5=+) 32.Qg3 (32.Qf4 e5 33.Re5 Be5 34.Qe5 Ka7 35.Qg7 Rc8=+) 32...Ka8=+ 33.Rc6 (33.Re2 Rhd8=+) 33...Rc8 (33...Rd5 34.Bd6 Rc8 35.Bc7-/+) 34.Bd6 e5 (better 34...Bc5!? 35.Bc5 Rc6 36.bc6 Qc6=+) 35.Be5+= Be5 36.Rc8 (worse 36.Qe5 Rc6 37.bc6 Qc6=+) 36...Qc8 37.Qe5 f6 38.Qf4 Qc7 (38...Rd1 39.Kh2 Qb8 40.Qb8 Kb8 41.Kg3+=) 39.Re8 Ka7 40.Qe4?? (better 40.Qf3 Rd8 41.Re4+=) 40...Rd1-+ (40...Rd1 41.Qe1 Qc1-+) 0–1. Larsen,Pet (2270) – Vovk,Ok (2120), AS04 Centenary, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 cd3 7.Bd3+= Ne7 8.h4 (8.0-0 Qc7+=) 8...Nbc6 (8...Qc7 9.h5=) 9.Bf4 Qc7 10.Qe2 (10.h5 Bb7=) 10...Ng6 Now all is on e5 11.Bg3 a5 12.b5 Nb8 13.h5 Ne7 14.Ng5 h6 15.Nh7 Bb7 16.Nf8 Kf8 17.0-0 Nd7 18.a4 Nc5 19.f4 (19.Bc2 Rc8+=) 19...Nd3 20.Qd3 Rc8 (20...Rg8 21.Bf2=) 21.Bf2+= Rd8 22.Qd4 Nc8 23.Na3 Qe7 (23...Ke8 24.f5 ef5 25.Bh4+=) 24.f5! ef5? (better 24...Re8 25.Bh4 Qc5+-) 25.Bh4+- (25.Bh4 Qc7 26.Bd8 Qd8 27.Rf5+-) 1–0. Helin,Mikael (2200) – Tjornsted,Peter, Politiken Cup, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 Nc6

6.a3 d4 7.cd4 (7.b5 Na5 8.cd4 cd4=) 7...Nd4 8.Bb2 Ne7 (8...Qd5 9.Nd4 cd4 10.Qe2=) 9.bc5+= bc5 10.Nd4 cd4 11.Qa4 Bd7 12.Qd4 Nf5 13.Qd3 (13.Qe4 Rb8 14.Bc3 Rb6+=) 13...Qb6 14.Bc3 Bc5 15.Qe2 Rb8 16.Bb4 Nd4 17.Qd1 a5 18.Bc5 Qc5 19.Nc3 Qe5 20.Ne2?? (better 20.Be2-/+) Nc2!!-+ (20...Nc2 21.Qc2 Qa1 22.Qd1 Rb1-+) 0–1. Tidman,Sophie E (2000) – Tiller,B (2375), 4NCL Birmingham ENG, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nc6)

6.a3 Bd7 7.d4 a5 8.b5 Na7 9.a4 Rc8 10.Ba3 (10.Bd3 cd4 11.cd4 Ne7+-) 10...Nh6 11.Bd3 g6 (11...Be7 12.0-0+=) 12.0-0+- Nf5 (12...f6 13.Re1+-) 13.Re1 Be7 14.Nbd2 h5 (14...cd4 15.Be7 Qe7 16.cd4+-) 15.Nf1 (15.dc5 Bc5 16.Bc5 Rc5+-) 15...Rc7 16.Ne3 (16.Rc1 c4 17.Be7 Qe7+-) 16...Nc8 17.g3 (17.Nf5 gf5 18.c4 dc4 19.Bc4 cd4 20.Qd4 Rg8+-) 17...Rb7 (17...Ne3 18.Re3 c4 19.Bc2+-) 18.h4 (18.Nf5 gf5 19.c4 h4+=) 18...Qc7 (18...Ne3 19.Re3 (worse 19.fe3 g5=) 19...c4 20.Bc2+-) 19.Qd2 Kd8 (19...c4 20.Nf5 Ba3 21.Ra3 ef5 22.Bf1+-) 20.Rac1 (20.Nf5!? gf5 21.c4+-) 20...c4+- 21.Be7 Nce7 22.Bf5 (22.Nf5 ef5 23.Bf1 Kc8+=) 22...ef5 (22...gf5 23.Ng2+=) 23.Ng5+- Be6 24.Ng2 Kc8 (24...Qd7 25.Ne6 fe6 26.Qg5+-) 25.Nf4 Qd7 (25...Kd7 26.Nf7! Bf7 27.e6 Ke8 28.ef7 Kf7 29.Re6+-) 26.Nfe6+- fe6 27.Nf7 Rg8 28.Nd6 Kb8 29.Nb7 Kb7 30.Qh6 Qe8 31.Qh7?? (better 31.Qg5+-) 31...Qf8-+ 32.f4 Rh8 33.Qh8 Qh8 34.Kf2 Qf8 35.Ke3 Ng8 36.Rb1 (36.Ra1-+) 36...Qa3 0–1. Latifpour,Mohammad (1800) – Khoshkalam,Seyed Mehrab (2260), 12th Iranian Blitz Men Championship, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Bd7 7.d4 c4 8.a4 (8.Be2 Be7+=) 8...a6 9.Be2 Nce7 (9...Nge7 10.Bg5=) 10.Qd2 (10.0-0 Nc6+=) 10...Qc7 (10...Nc6 11.0-0+=) 11.Bd1 h6 (11...f6 12.0-0+=) 12.h4 (12.0-0 Nc6+=) 12...0-0-0 (12...Nc6 13.Bc2+=) 13.Qe2 Kb7 14.Bc2 Be8 (14...f5 15.h5+=) 15.Na3 White prepares the advance b5 (15.h5 Kb8+-) 15...Qd7 (15...Bd7 16.Bd2+=) 16.b5 (16.h5 g5+-) 16...a5+= 17.Nd2 (17.h5 Nf5+=) 17...Nc8 18.Qf3 Ka7 19.Bd1 (19.Bb2 f6+=) 19...Qc7 (19...f6 20.h5=) 20.Nc2 (20.0-0 f5=) 20...f6 21.Be2 (21.h5 g5=) 21...Bg6 (better 21...fe5 22.Qf8 Bg6=) 22.Nb4?? (better 22.Ne3=) 22...ab4-+ 23.Nc4 (23.h5 Bc2 24.ef6 Nf6 25.cb4 Bb4 26.0-0-+) 23...dc4 24.ef6 (24.Bf4 Qb7 25.Qg3 Bd3-+) 24...Nf6 (24...gf6 25.Qe3-+) 25.Bf4 Bd6 26.Bd6 Nd6 (worse 26...Rd6 27.cb4 Rd4 28.a5-+) 27.a5 (27.cb4 Nf5 28.Qc6 Qc6 29.bc6 Nd4-+) 27...Be4 28.Qg3 (28.ab6 Kb6 29.Qh3 Nb5-+) 28...b3 (better 28...Nb5 29.Qe5 Qe5 30.de5-+) 29.Qe3 (29.ab6 Kb6 30.0-0 Nb5-+) 29...Nd5 (better 29...b2!? 30.Rd1 Nd5 31.Qd2-+) 30.Qd2 (30.Qc1 ba5 31.Bf1 Nb5-+) 30...Nb5 (30...ba5 31.Ra4-+) 31.Ra4 Nd6 (31...Bg2 32.Rc4 Qd6 33.ab6 Nb6 34.Rg1 Nc4 35.Bc4-+) 32.0-0 (32.ab6 Kb6 33.0-0 Qc6-+) 32...b5 33.Ra3 Bc2 34.Bd1 (34.Bf3 Qe7 35.h5 Qg5 36.Qg5 hg5 37.Bd5 ed5-+) 34...Ne4 35.Qe1 Bd1 36.Qd1 Nec3 (36...Ndc3 37.Qe1-+) 37.Qe1 Rde8 38.f4 g6 (38...b4 39.Ra1 Nf4 40.Kh1-+) 39.Rf3 (39.Rf2 b4 40.Ra1 Nf4-+) 39...Na2 40.Qf2 (40.Qa1 c3 41.Rf1 c2 42.Rb3 c1Q 43.Rc1 Qc1 44.Qc1 Nc1 45.Rb5 Ne2 46.Kf2 Nd4-+) 40...Qd6 (better 40...c3!? 41.Rb3 c2 42.Rbc3 Nac3 43.Qc2-+) 41.Qb2 (41.Ra2 ba2 42.Qa2 Nf4-+) 41...Ka6 42.Rf1 (42.Ra2 ba2 43.Qa2 Nf4-+) 42...Rb8 (42...Nf4 43.Ra2 ba2 44.Kh1-+) 43.g3 (43.Ra2 ba2 44.Qa2 Nf4-+) 43...Rhe8 (43...Ndc3 44.Kh2 b4 45.Rb3 cb3 46.Qb3-+) 44.Re1 (44.Kh2 b4 45.Ra2 ba2 46.Qa2 Ne3-+) 44...Qb4 45.Re5 Qc3 46.Qe2 Qc1 (46...Qg3 47.Kh1 Nf4 48.Qf1 Qh4 49.Kg1 Nh3 50.Kg2-+) 47.Kh2 Qc2 48.Ra2 Qa2 0–1. Helin,Mikael (1960) – Burke,Steven J (2035), Paignton Ron Bruce Premier, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nc6)

6.a3 Nge7 7.d4 Nf5 8.Bd3 Be7 9.0-0 c4 10.Bc2 Bd7 (10...a6 11.a4+=) 11.g4 (11.Bf4 0-0=) 11...Nh4= 12.Nh4 Bh4 13.f4 Be7 14.f5 Bg5 (14...h5 15.gh5 ef5 16.Bf5 Bf5 17.Rf5=) 15.f6 gf6 16.ef6 Bc1 17.Qc1 Rg8 (17...h6 18.Qe3=) 18.g5+= Qc7 19.Bh7 Rh8 20.g6 0-0-0 21.Qh6 (21.Qc2 fg6 22.Bg6 e5=) 21...fg6 22.f7 (22.b5 Na5=) 22...Rdf8 23.Qg7 Ne7 (23...Qd8 24.Ra2= (24.Qg6? Qh4-+; worse 24.Bg6 Qg5 25.Kh1 Ne7-/+)) 24.Ra2 Nf5 25.Rf5 (25.Qg6 Qd8 26.Re2 Qh4=) 25...gf5 (25...ef5!? 26.Bg8 Qd8 27.Qh8 Qg5 28.Kf1 Qc1 29.Kf2 Qb1=) 26.Bg8= Qd8 27.Qh8 Qg5 28.Kf2 Qf4 29.Ke2 Qe4 30.Kd2?? (better 30.Kf2 Qf4 31.Ke2 Qe4 32.Kf2 Qf4=) 30...Qb1-+ 31.Rc2 (31.Qh6 Qa2 32.Ke1 Qb1 33.Kf2 Qb2 34.Kf1 Rf7 35.Bf7 Qc3 36.Qh8 Kb7 37.Qe5 Qh3 38.Kg1-+) 31...Ba4 0–1. Godlauskas,Kazys (2225) – Jasiulevicius,Aidas (2300), Marijampole op–B, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Nh6 7.d4 Nf5 8.Bd3 cd4 9.b5 Na5 10.cd4 Be7 11.0-0 0-0 (11...a6 12.Nc3+=) 12.Nbd2 (12.Qc2 h6+=) 12...Bd7 (12...a6 13.a4+=) 13.Re1 (13.Ra2 f6+=) 13...Rc8 14.Nf1 (14.a4 Nc4+=) 14...Nc4= 15.a4 (15.Qb3 Qc7=) 15...Rc7 (15...Bb4 16.Re2=) 16.Bb1 (16.Qb3 Bc8=) 16...g6 (16...Bb4 17.Bd2 Nd2 18.N1d2=) 17.h3 (17.N1d2 Bb4=) 17...Kg7 (17...Bb4 18.Bg5 Qa8 19.Re2=) 18.N1h2 (18.Bd3 Bb4 19.Bg5 Qa8+=) 18...h5 (18...Qa8 19.Ng4 Rfc8 20.Bf5 ef5 21.Bh6 Kh8 22.Nf6+=) 19.g4 (19.Re2!?=) 19...hg4=+ 20.Ng4 (20.hg4 Nh4=) 20...Rh8 21.Bf5 (21.Kg2 Qg8=+) 21...ef5 (21...gf5!? 22.Nf6 Bf6 23.ef6 Qf6-/+) 22.Nf6=+ Bf6 (22...Bc8!?=+) 23.ef6= Qf6 24.Bf4 (24.Bg5 Qd6 25.Be7 Qf4=) 24...Rb7 (24...Rcc8 25.Rc1 Qd8 26.Kg2=+) 25.Kg2 Re8 (25...Qd8 26.Rc1=+) 26.Rc1 (26.Ne5!? g5 27.Qh5+=) 26...Re4 27.Be5 Ne5 28.de5 (worse 28.Ne5 Qg5 29.Kf1 Qh4 30.Re4 Qh3 (30...de4?! 31.Qb3 Qf6 32.Ke1=+; 30...Qe4?! 31.Rc3-/+) 31.Ke2 fe4-+) 28...Qe7 29.Qd5 Be6 30.Qc6 Ra4 31.h4 (better 31.Red1!?=+) 31...Rg4 32.Kh2 Rd7 33.Rcd1? (33.Qc3 Qd8 34.Qb2 Rd3-+) 33...Rd1 (33...Rh4 34.Kg1 Rg4 35.Kh1-+) 34.Rd1 Qb4 (better 34...Rh4 35.Kg1 Rg4 36.Kh1 Rc4-+) 35.Rd3?? (35.Rc1-+) 35...Qf4 (better 35...Qb1 36.Rd4 f4 37.Rd7-+) 36.Kh1 (36.Kh3 Qe4 37.Re3-+) 36...Bc4?? (36...Qe4 37.Qc3-+) 37.Qf6?? (better 37.Re3-/+) 37...Kh7-+ 38.Ng5 (38.e6 Bd3 39.Ng5 Rg5 40.Qf7 Kh6 41.hg5 Kg5 42.Kg1 Qg4 43.Kh2 Qf3 44.Qe7 Kg4 45.Kg1 Be4 46.Qh4 Kh4 47.e7 Qg2) 38...Rg5 39.hg5 Qe4 (39...Bd3?! 40.Qf7 Kh8 41.Qf8 Kh7 42.Qh6 Kg8 43.Qg6 Kf8 44.Qd6 Ke8 45.Qg6 Kf8 46.Qd6 Ke8 47.Qb8 Ke7 48.Qd6 Ke8=) 40.f3 (40.Kh2 Qd3 41.Qc6-+) 40...Qd3 41.e6 Be6 (41...Qf3 42.Kg1 Qg3 43.Kh1 Bd5) 42.Qe5 (42.Qb2 Qf3 43.Qg2 Qd1 44.Kh2 f4-+) 42...Kg8 (better 42...Qf3 43.Kg1 f4-+) 43.Qb8 Kh7 (43...Kh7 44.Qe5 Qf3 45.Kg1 f4-+) 0–1. Balzert,Antonius – Einhorn,Leonid, Verbandsliga Sued Baden, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.b5 Na5 7.d4 a6 8.a4 (8.Nbd2 c4 9.ba6 Nc6=) 8...ab5 (8...cd4 9.cd4 (9.Qd4? Nb3 10.Qd1 Na1-+; 9.Nd4?! Qc7=) 9...Nc4 10.Nc3=) 9.Bb5+= Bd7 10.Na3 Ne7 11.Bg5 (11.0-0 Bb5 12.ab5 Ng6+=) 11...h6= 12.Bd7 (12.Bh4 Qc7=) 12...Qd7 13.Nb5 Nec6 14.Be3 Nc4 15.0-0 Be7 (15...cd4 16.cd4 Bb4 17.Bd2=) 16.Nd2 N6a5 (16...Ne3 17.fe3 0-0 18.e4=) 17.Nc4 Nc4 18.Qg4 g5 (worse 18...Ne3 19.Qg7 (19.fe3?! 0-0=) 19...Rf8 20.fe3+-) 19.Ra2 Qd8 20.Qh5 (20.Rb1 Ra5=) 20...Kf8 (20...Ra5 21.Rb1=) 21.Bc1 Kg7 22.f4 f5 23.ef6 Bf6 24.f5 (24.Raf2!?+=) 24...ef5= 25.Rf5 Qe8 (25...Re8 26.Qd1 Qe7 27.dc5 Qc5 28.Raf2 Ra4 29.Rf6 (29.Rd5?! Re1 30.Qe1 Qd5=) 29...Qb5 30.h4+-) 26.Qe8 (26.Qd1 cd4 27.Rf6 Kf6=) 26...Rae8 27.Kf1 cd4 28.cd4 Re4 (28...Rhf8 29.Raf2=) 29.Rd5+- Rhe8 30.Bd2 (better 30.Rc2!? Rf8 31.Rf5+-) 30...Rf8= 31.Rf5 Bd4 32.Rf8 Kf8 33.Bb4 Kg7?? (better 33...Kf7=) 34.Nd4+- 1–0. Koop,Thilo – Becker,Sonke, GER op Germany, 1993. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nc6)

6.b5 Na5 7.d4 Bb7 8.Bd3 Ne7 9.0-0 Ng6 10.g3 (10.Ng5!?+/-) 10...Be7 11.h4 Qc7 12.h5 Nf8 13.h6 g6 (13...gh6 14.Qa4=) 14.Ng5 (14.Bg5 Bg5 15.Ng5 Nd7+=) 14...Nd7= 15.Qf3 Bg5 (15...0-0!?=) 16.Bg5+= 0-0 17.Nd2 (17.Be7 Rfc8+=) 17...Nc4 18.Qe2 Rac8 (18...Nd2 19.Bd2 Rae8 20.Qg4+=) 19.Nf3 (19.Bc4 dc4 20.Rfc1 Ba8+=) 19...Rce8 20.Nh4 f6 21.ef6 (worse 21.Bc4 fg5 22.Ng6 hg6=+) 21...Nf6 22.Nf3 (22.Bc4 dc4 23.Bf4 Qd7 24.Qc4 cd4 25.cd4 Rc8=) 22...Ne4 23.Rac1? (better 23.Be4 de4 24.Qc4 Rf3 25.Bf4 Rf4 26.gf4 Qf4 27.dc5 Qg5 28.Kh2 bc5 29.Rae1-/+) 23...Rf3!-+ (23...Ng5 24.Ng5 e5 25.dc5 Qc5 26.Ne4 de4 27.Bc4 Kh8 28.Kh2=+) 24.Qf3 Ng5 25.Qg4 Qe7 (25...Nd2 26.Kg2 Nge4 27.Rfe1-+) 26.Rfe1 Rf8?? (better 26...Nb2 27.Bg6 hg6-+) 27.f4= Ne4 28.Re4 de4 29.Bc4 Bd5 30.Bf1 e3 (30...cd4!? 31.cd4 Qa3-/+) 31.Re1 cd4 32.cd4 Qb4 (32...Rc8 33.Re3 Rc1 34.Rd3=) 33.Bg2?? (better 33.Qe2 Qd4 34.Qe3=) 33…Qe1 (33...Qe1 34.Kh2 Qf2 35.Qh3 e2 36.g4 e1Q 37.Qf3 Bf3 38.d5 Qg2) 0-1. Horak,Martin (2330) - Kuderinov,K (2405), Titled Tuesday, 2021. (=1.e4 C00: French: Unusual White 2nd moves 1...e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.b5 Nb8 7.d4 Nd7 (7...a6 8.Be3=) 8.Bd3 a5 (8...c4 9.Bc2+=) 9.0-0+- Bb7 10.Ng5 g6 11.Qg4 Bg7 12.f4 (12.Na3 Nh6 13.Qh3 Nf5+=) 12...Ne7 13.Qh3 h6 14.Nf3 Qc7 Black intends c4 15.a4 0-0-0 16.Ra2 (16.Ba3 Nf5+=) 16...Rdg8 (16...Nf5 17.Ba3=) 17.Raf2 (17.Ba3 Nf5+=) 17...Bf8 (17...Nf5 18.Ba3+=) 18.Na3 (18.Ba3 Nf5+=) 18...c4= 19.Bb1 Kb8 20.Nc2 Qd8 (20...Nf5 21.Re2+=) 21.Ba3 Nf5 22.Bf8 Nf8 (22...Qf8 23.Re2+=) 23.g4 (23.Qg4 Nd7+=) 23...Ne7= 24.Qg3 Nd7 25.Rg2 Ka7 (25...Rg7 26.Ne3+=) 26.Ne3 Nf8 27.Kf2 (27.Qf2 Nd7+=) 27...Nc8 (27...h5 28.g5=) 28.Ke2 (28.Ke1 h5+=) 28...Qe7= 29.Kd2 Qd8 (29...Nd7 30.Nc2+=) 30.Qf2 f5 (30...Nd7 31.Kc2+=) 31.ef6+- Qf6 32.Ne5 White prepares f5 32...Qe7 33.f5 (33.Kc1 Nd6+-) 33...gf5 34.gf5 Qa3 35.Rg8 (35.Nf7 Nd6 36.Nd6 Qd6+-) 35...Rg8 36.fe6 (36.f6 Nd6 37.Bc2 Qa2+-) 36...Qb2 (36...Nd6!? 37.Bc2 Ne6=) 37.Bc2+= Nd6 (37...Ne6? 38.Qf7 Nd4 39.Qg8 (39.cd4?! Qd4 40.Ke2 Qe5 41.Qg8 d4+-) 39...Nc2 40.Nc2+-) 38.Nd1 Qa2 39.Kc1 (39.Re1 Ka8 40.e7+-) 39...Ne6=+ 40.Qf6 (40.Qh4 Qa1 41.Kd2 Ng5=+) 40...Rg2 41.Rf2 Qa3?? (better 41...Rg1!? 42.Nc6 Bc6 43.Qe7 Bb7 44.Qd6 Nd4 45.Qh6 Qa1 46.Kd2 Nc2 47.Qb6 Kb6 48.Rf6 Kc5 49.Rf1 Rf1 50.Kc2 Qd1 51.Kb2 Qb3) 42.Kd2 (better 42.Kb1!? Rf2 43.Nf2+-) 42...Ng5= 43.Nc6 Bc6 44.Qg7 Bb7 45.Rg2 Nde4 46.Be4 Ne4 47.Ke1 Qa4?? (better 47...Qa1=) 48.Qd7+- (48.Qh6?! Qb5 49.Qe3 a4+-) 48...Ng5 (48...Nc3 49.Nc3 Qa1 50.Nd1 Qd4 51.Rg7 Qe4 52.Kd2+-) 49.Rf2 Qa3 50.h4 Ne4 51.Rf7 Nd6 52.Rh7 Ka8 53.Rh8 (worse 53.Rh6 Nc8 54.Rh7 Nd6+-) 53...Ka7 54.Rh6 Nc8 55.Rh7 Nd6 56.h5 a4 Black threatens to counter with Qc7 57.h6 Qa2 58.Qd6 Qc2 59.Qe7 (59.Qe7 Qh7 60.Qh7 Kb8 61.Qg8 Kc7 62.h7 Bc8 63.h8Q Bg4 64.Qe5 Kd7 65.Qge8) 1–0. Kvitka,Roman (2030) – Palin,Denis (2010), Summer Cup Saratov High School Property, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nc6)

5.c3 Qc7

6.a3 a5 7.bc5 bc5 8.d4 Ba6 9.Ba6 Ra6 10.0-0 Ne7 11.a4 Nec6 12.Na3 Be7 13.Nb5 Qd7 (13...Qd8 14.Qe2=) 14.Ba3+= 0-0 15.dc5 f6 16.Qe2 (16.ef6 Bf6 17.Rb1 e5+-) 16...Rc8 (16...fe5 17.Ne5 Ne5 18.Qe5+=) 17.Rfe1 (17.Nd6 Bd6 18.ed6+- (18.cd6?! fe5 19.Ne5 Ne5 20.Qe5 Rac6+=)) 17...f5 (17...fe5 18.Ne5 Ne5 19.Qe5+-) 18.Rad1 (18.Nd6 Rd8+-) 18...Bf8 (18...Nd8 19.Qe3 f4 20.Qd4+-) 19.h3 (19.Nd6 Rc7+-) 19...Ra8 (19...Nd8 20.Qe3 Nbc6 21.Rd2+-) 20.Rb1 (20.Nd6 Bd6 21.ed6 Nd8+-) 20...Na6 (20...Nd8!?+-) 21.Nd6+- Rc7 (21...Rd8 22.c4 d4 23.Rb5+-) 22.Rb6 Rca7 (22...Nab8 23.c4 d4 24.Rd1+-) 23.Reb1 (23.Qb5 Nab8+-) 23...Nd8 (23...Rb8 24.R1b2 Rba8 25.Qb5+-) 24.Nd4 (24.Qb5 Qe7 25.c6+- (25.Qa5 Nc7 26.Qa7 Ra7=+)) 24...Qa4+- 25.R1b3 (25.N4b5 Nc7 26.Na7 Qa3+-) 25...Nf7 (better 25...Nc7+-) 26.Ne6 Re7 (26...f4+-) 27.Nf7 (better 27.Nf8 Re5 28.Qd1 Nd6 29.cd6+- (29.Rd6?! Rae8 30.Re6 R8e6 31.Ne6 Qe8+-)) 27...Re6+- 28.Nd6 (28.Re6?! Qb3 29.Ra6 Ra6 30.Qa6 Qa3=) 28...Nc7 (28...f4 29.Qh5 g6 30.Qe2+-) 29.Bc1 (better 29.Qe3+-) 29...Qa1? (29...Qh4 30.Rb8+-) 30.Qd2 (better 30.Qd1 Qa4 31.Rb7+-) 30...Re5?? (better 30...Qa4 31.Qd4 Qd7+-) 31.Ra3 Qa3 32.Ba3 Rd8 (32...g6 33.Rb7 Ne6 34.f4+-) 33.f4 Re7 34.Nf5 Rf7 (34...Re4 35.Nd6 Re7 36.Rb7+-) 35.Nd6 Rf6 (35...Rfd7 36.Rb7 g6 37.f5+-) 36.Rb7 Ne8 (36...Rd7+-) 37.Qd5 Kh8 38.Nf7 Rf7 39.Rf7 (39.Rf7 Bd6 40.cd6+-) 1–0. Zakarian,D (2345) – Casaschi,Paolo (1980), London Classic Rapid Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 a6 7.d4 Bd7 8.Bd2 Nc6 9.Bd3 f6 10.Qe2 fe5 11.de5 (11.Ne5 Ne5 12.de5 c4+=) 11...a5 (11...c4!? 12.Bc2 g6=) 12.b5+- Nce7 13.c4 0-0-0 (13...Rd8 14.0-0+-) 14.Nc3 d4 15.Na4 Kb8 (15...Nf5 16.0-0+-) 16.Rb1 (16.Ng5 Nh6+-) 16...Nc8 (16...Nf5 17.0-0+-) 17.Be4 (17.Ng5 Nh6+-) 17...Nh6 18.Ba5 (18.Bh6 gh6 19.Nb2 Ne7+=) 18...Qa7+= (18...ba5? 19.b6 Nb6 20.Nb6+-) 19.Bb6 Nb6 20.Nb6 Qb6 21.0-0 Bc8 22.Bc6 Be7 23.a4 Rdf8 (better 23...Qa5!?=) 24.a5+- Qa5? (better 24...Qa7+-) 25.Ra1 Qb6 26.Ra8 Kc7 27.Rfa1 Bb7 28.Bb7 Ra8 29.Ba8 (29.Ra8?! Ra8 30.Ba8 Qa5+-) 29...Rb8 (29...Nf5 30.Qe4 h6 31.Ra6+-) 30.Qe4 Kd8 31.Qh7 Bf8 32.Qg6 Nf5 (32...Qc7 33.Ng5 Rb6+-) 33.Bc6 Ne7 34.Qe8 (34.Qe8 Kc7 35.Qd7) 1–0. Helin,Mikael – Sebe,Florin (2215), Miercurea Ciuc op, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 c4 7.d3 cd3 8.Bd3 Ne7 9.0-0 Ng6 10.Qe2 Be7 (10...Nd7 11.Re1+=) 11.Re1 (11.c4 Bb7+=) 11...Bb7 12.Nd4 (12.Ra2 0-0+=) 12...0-0 (12...Nd7 13.Qh5 0-0 14.Bg6 hg6 15.Qg4=) 13.f4 (13.Qg4 Nc6 14.Bg6 hg6=) 13...a5 14.Ra2 Nc6 (14...ab4 15.cb4 Nc6 16.Nc6 Bc6 17.Rc2+=) 15.b5 Nb8 (15...Nd8 16.f5 ef5 17.Bf5=) 16.Be3 (16.f5 ef5 17.Bf5 Nd7+=) 16...Nd7 17.Rc2 Nc5 18.Bg6 hg6 19.c4 dc4 (19...Rfd8 20.Rd1=) 20.Rc4+= Rac8 (20...g5 21.Nc3+=) 21.Rec1 (21.Nc3 Rfd8+=) 21...Rfd8 22.Nc3 g5 23.Rc2 Qb8 24.a4 Rd7 (24...gf4 25.Bf4 Nd7 26.Nc6 Bc6 27.Rc6 Bc5 28.Kh1=) 25.Qg4 (25.Bd2 gf4 26.Bf4 Nd3 27.Rc8 Qc8= (worse 27...Bc8 28.Qd3 Rd4 29.Qd4+-)) 25...Rcd8 26.Rd2 Ne4 (26...gf4 27.Qf4 f6 28.Qg3 Qe5 29.Bf4 Rd4 30.Rdd4 Rd4 31.Be5 Rc4 32.Bc7 Na4 33.Na4 Ra4 34.Bd6 Bd6 35.Qd6=+) 27.Ne4 Be4 28.Qg3 (28.Rd1 Qa8 29.fg5 Qd5=) 28...Rc7 (28...Bb4 29.Rb2 Rc8 30.Rcb4 ab4 31.fg5-/+) 29.Nc6 (29.Rc7 Qc7 30.fg5 Qc1 31.Kf2=+) 29...Bc6=+ 30.Rc6 (worse 30.bc6 Rd2 31.Bd2 Bc5 32.Kf1 Qd8-/+) 30...Rd2 (30...Rc6 31.bc6 Rd2 32.Bd2-/+) 31.Bd2-/+ Rc6 32.bc6 Qd8 33.Qc3 Bc5 34.Kf1 gf4 35.h4 f3 (35...Qh4?! 36.Qc5 bc5 37.c7=) 36.gf3 (36.Be1!? Qd1 37.Qf3 Qa4 38.g4-/+) 36...Qh4-+ 37.Be3 Be3 38.Qe3 Qc4 39.Kg2 Qc6 40.Qd4 Qd5 41.Qb6 Qa2 42.Kg3 Qa4 43.Qd6 (43.Qd8 Kh7-+) 43...Qb4 44.Qd8 Kh7 45.f4 Qe1 46.Kg4 (46.Kf3 a4-+) 46...Qg1 (46...Qe2 47.Kg3 Qe3 48.Kg4-+) 47.Kf3 a4 48.Qd3 Qg6 49.Qa3 (49.Qd2 Qf5 50.Qh2 Kg8-+) 49...Qc2 50.Qa1 (50.Qd6 Qb3 51.Kf2 a3-+) 50...g6 0–1. Perlo,Gerardus C Van (2440) – Mraz,Milan (2520), WC19/TQF2, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 c4 7.d4 cd3 8.Bd3 a5 9.b5 Nd7 10.Bf4 Nc5 11.Bc2 a4 12.0-0 Ne7 13.c4 (13.Re1!?=) 13...dc4=+ 14.Nc3 Nb3 (14...Bb7=+) 15.Ne4? (better 15.Ra2!?=+) 15...Nd5-+ (15...Na1 16.Nd6 Kd8 17.Nf7 Ke8 18.Nd6 (18.Nh8?! Nc2 19.Qc2 Nf5=) 18...Kd8 19.Be4+- (19.Qa1?! g6+-)) 16.Nd6 (16.Bb3 ab3 (16...Nf4?! 17.Bc2-/+) 17.Bg3 b2-+ (worse 17...Ra3 18.Ra3 Ba3 19.Qa1-/+)) 16...Bd6 17.ed6 Qa7 (better 17...Qc5!? 18.Bb3 ab3-+) 18.Bb3-/+ cb3 19.Rc1 (19.Qd4 0-0 (19...Nf4?! 20.Qf4 0-0 21.Ne5=) 20.Ne5 Qa5-/+) 19...0-0 (worse 19...Nf4 20.Rc7 Bb7 21.Ne5+=) 20.Ne5? (20.Bg3 Qd7-/+) 20...Bd7 (better 20...Nf4!? 21.Rc7 Qa5-+) 21.Qg4-/+ Bb5 22.Bh6 f5 (22...g6 23.Bf8 Bf1 24.Be7 Ne7 25.de7-/+) 23.Qg5 (better 23.Qg3!? Rf7 24.Nf7 Qf7 25.Rfd1=) 23...Rf7-/+ (23...Bf1 24.d7 Qd7 25.Nd7+-) 24.Nf7 (24.Rfe1 Kh8 25.Qh5 Be8 26.Nf7 Bf7-+) 24...Qf7 25.Rfd1 (25.Rfe1 Kh8 26.Re6 gh6 27.Rh6-+) 25...Kh8-+ 26.Rd5? (26.Qg3 gh6 27.Qe5 Kg8 28.Rd2-+) 26...ed5 27.Rc7 (27.Rd1 gh6 28.Qh6 Bc4-+) 27...gh6 28.Qh6 (28.Qh4 Bd7 29.Qd4 Kg8 30.h3-+) 28...b2 29.h3 (29.Rc1 Qe6 30.Qd2 (30.Qe6?? bc1Q 31.Qe1 Qe1) 30...bc1R 31.Qc1-+) 29...b1Q 30.Kh2 Bd7 31.Rd7 Qd7 0–1. Mogilarov,Dimitar – Petrik,Tomas (2275), EU–ch U16 Rimavska Sobota, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Nc6 7.d4=.

6.a3 Ne7 7.d4 c4 8.a4 Nbc6 9.g3 (9.Be2 a6+=) 9...Bd7 10.Bg2 f6 11.ef6 gf6 12.0-0 Ng6 13.Na3 Nd8 (13...a6 14.Re1=) 14.Re1+= Be7 15.Nd2 Rc8 16.Nc2 0-0 17.f4 f5 18.Nf3 Nf7 19.Ne5 Nd6 20.Ne3 (20.Ng6 hg6 21.Bd5 ed5 22.Re7 Ne4+-) 20...Bf6 (20...Ne5!? 21.fe5 Ne4=) 21.b5+= Be5 22.de5 Ne4 23.Nd5 ed5 24.Qd5 Kh8 25.Be4 fe4 26.e6 (worse 26.Qe4 Bf5 27.Qf3 Ne7=; worse 26.Re4 Ne7 27.Qd6 Qb7=+) 26...Be8 27.Ba3 Rd8 28.Qe4 Rg8 29.f5 (29.Rad1!? Rd1 30.Rd1+-) 29...Nf4+- 30.Bc1 Nd3 31.Be3 Ne1 (31...h5 32.Bd4 Kh7 33.Re3+-) 32.Re1 (better 32.Bd4 Rd4 33.Qd4 Qg7 34.Re1 Qd4 35.cd4+-) 32...Rg3? (better 32...h5+-) 33.hg3+- Qg3 34.Kf1 Qh3 35.Kf2 Qh2 36.Qg2 Qh4 37.Qg3 (37.Qg3 Qg3 38.Kg3+-) 1–0. Dovzik,Juri (2365) – Belmonte,DJ, Eger op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Ne7 7.d4= Nbc6 8.Be2=.

6.a3 Ne7 7.d4= Ng6 8.Bd3 a5 (8...c4 9.Bc2=) 9.bc5 bc5 10.h4 c4 (10...Nc6 11.0-0=) 11.Bc2+= Ne7 (better 11...Nc6!?+=) 12.a4+- Nec6 (12...Nbc6 13.Na3 Na7+-) 13.Ba3 (13.Na3 Qd8+-) 13...Ba3 (13...Nb4!?+=) 14.Na3+- (14.Ra3?! Nd7+=) 14...Ba6 (14...Qe7 15.Nb5 0-0 16.Ng5+-) 15.Rh3 (15.Nb5 Bb5 16.ab5 Ne7+-) 15...Nd7+- 16.Ng5 (16.Nb5!? Bb5 17.ab5+-) 16...h6+= 17.Qh5 Nd8? (17...Nf8 18.Nf3 Nb4 19.Qg4=) 18.Nf3 (18.Nb5 Bb5 19.ab5 Rg8+-) 18...Nf8? (18...g6!? 19.Qg4 Rb8+=) 19.Nd2 (19.Kf1 g6 20.Qg4 Nd7+-) 19...Rb8 (19...Nd7 20.Qg4 g6+-) 20.Qd1 (20.Nb5!? Bb5 21.ab5+-) 20...Nc6 (20...Ng6 21.Nb5 Bb5 22.ab5+=) 21.Rb1 (21.Kf1 Rb6+=) 21...Nd7 (21...Rb1 22.Qb1 Nd7 23.Nb5+=) 22.Rb8 (22.Qg4!? Rb1 23.Bb1+-) 22...Qb8= (worse 22...Ncb8 23.Nb5 Bb5 24.ab5+-) 23.Qb1 (23.Qg4 Qb2 24.Nb5 Bb5 25.ab5 Nd4 (25...Qc2 26.bc6 Nb6 27.Qg7+=) 26.Qd4 Qc2-/+) 23...Ke7 (23...0-0 24.Bh7 Kh8 25.Bc2=+) 24.Nf3 (24.Nb5!?+=) 24...Qb1= 25.Nb1 Rb8 26.Kd1 Bc8 (26...f6 27.ef6 Nf6=) 27.Kc1 (better 27.Na3!?=) 27...Na7-/+ 28.Rh1 (28.Rg3 Kf8-/+) 28...Nb6 29.Na3 Bd7 30.Kd2 (30.h5 Ba4 31.Bh7 Nd7-+) 30...Ba4 31.Ra1 Bc2 32.Kc2 (32.Nc2 Nc6-/+) 32...Nd7-+ 33.Nd2 f6 34.f4 fe5 (34...Nc6 35.h5-+) 35.fe5 Kf7 (35...g6 36.Nf3-/+) 36.Rf1 (36.Nac4 dc4 37.Nc4 Nc6 38.Na5 Na5 39.Ra5 Rb7=+) 36...Kg8 37.g4 (37.Nf3 Nc6-/+) 37...Nb5 (37...g6 38.Ra1-/+) 38.Nb5 Rb5 39.Rb1 (39.g5 h5-/+) 39...Rb1 40.Kb1 (40.Nb1 h5! 41.Kd2 hg4-+) 40...Nf8 (40...Kf8 41.Nf3 Nb6 42.Kb2 Na4 43.Kc2-/+) 41.Ka2 (41.h5!?-/+) 41...Ng6-+ 42.Nf3 White prepares the advance g5 42...Nf4 43.Ng1 (43.Nh2 Kh7 44.h5 g6 45.hg6 Kg6-+) 43...Ng2 44.Nf3 (44.h5 Ne3-+) 44...Kf7 45.g5 (45.Ka3 Ne3-+) 45...Ne3 46.gh6 (46.Ka3 Nd1-+) 46...gh6 47.h5 (47.Ng1 Kg6 48.Kb2-+) 47...Nd1 48.Ng1 (48.Ne1 Nc3 49.Ka1 Ne2-+) 48...Nc3 49.Kb2 Ne4 (better 49...Nb5 50.Nf3-+) 50.Ne2 a4 (better 50...Ke7!? 51.Ka3-+) 51.Ka3 c3 52.Ka4 (52.Ka2 Kg8-+) 52...c2 53.Kb3 (53.Nc1 Ng3-+) 53...c1Q! 54.Nc1 Ng3 55.Kc3 (55.Kc2 Nh5 56.Kd3 Kg6-+) 55...Nh5 56.Kd3 (56.Ne2 Kg6-+) 56...Ng3 57.Nb3 (57.Ke3 Nf5 58.Kf4 Nd4-+) 57...Nf5 (57...Kg6 58.Nc5 Kf5 59.Ke3-+) 58.Nd2 (58.Ke2 Kg6-+) 58...Kg6 (58...h5 59.Nb3-+) 59.Nf3 (59.Nb3 h5-+) 59...Kh5 0–1. Roebuck,Derek J (1725) – Du Toit,Reenen J (1975), British Chess Championships, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qc7)

6.a3 Ne7 7.d4 Ng6 8.h4 cd4 (8...Nc6 9.Bd3+=) 9.cd4+= Nc6 (9...h5 10.Ra2 a6 11.Rc2+-) 10.h5 (10.Qc2 a6+-) 10...Nge7 11.Bb2 (11.Bd3 Nf5 12.Qc2 a6+-) 11...Bd7 (11...Nf5 12.Bd3+-) 12.Bd3 Nf5 13.Bf5 ef5 14.Nc3 Be6 15.Rc1 Qb7 16.Qd3 (16.0-0 h6+=) 16...a6 (16...h6 17.0-0+=) 17.Ne2 Rc8 18.Nf4 Be7 19.0-0 (19.h6 g6+-) 19...0-0 (19...g5 20.hg6 hg6 21.b5 ab5 22.Qb5+-) 20.Rfe1 (20.h6!?+-) 20...h6+= 21.Kh1 Rfd8 22.Ng1 (22.Rg1 Bg5 23.Ne6 fe6+=) 22...b5= 23.Nge2 Na7 24.Ne6 fe6 25.Nf4 Qd7 26.Ng6 (26.Qg3 Rc1 27.Rc1 Bg5=) 26...Rc1 (26...Rc4 27.Kh2=) 27.Rc1 Bg5 (27...Rc8 28.Rc8 Nc8 29.Qc2=) 28.f4 (28.Rc5 Rc8+=) 28...Be7= 29.Qg3 (29.Rf1 Nc6=) 29...Rc8 30.Rc3 (30.Ne7 Qe7 31.Rc5 Rc5 32.dc5 Nc6=) 30...Bf8 (30...Rc4 31.Ne7 Qe7 32.Rd3=+) 31.Qe3 (31.Nf8 Rf8 32.Rc5 Qe8=) 31...Rc3 (31...Rc4 32.Kh2=+) 32.Qc3= Qc6 33.Qc6 Nc6 34.Kg1 a5 35.ba5 Na5 36.Nf8 Kf8 37.Bc3 Nc4 38.Kf2 Kf7 39.Bb4 g6 40.hg6 Kg6 41.Kf3 Kh5 42.Kg3 Ne3 43.Kf3 Nc4 44.Kg3 Ne3 45.Kf3 Nc4 ½–½. Xu,Xianliang (1800) – Urban,Lars (1855), Willingen Germany, Youth Championship, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qc7)

6.Na3!?+=.

6.bc5 bc5 7.Bb5 Bd7 8.a4 Nc6 9.Qe2 Nge7 10.0-0 c4 11.Ba3 Ng6 The pressure on e5 grows 12.Bf8 Kf8 13.Bc6 Bc6 14.Qe3 Bd7 15.Na3 (15.a5 Rb8=) 15...Ba4 16.Rfb1 Bd7 17.Nb5 Bb5 18.Rb5 Ne7 (18...Ke7 19.Rba5 Rhb8 20.h4= (20.Ra7?? Ra7 21.Ra7 Rb1 22.Ne1 Re1 23.Qe1 Qa7-+)) 19.Rab1 Nf5 (19...a5 20.Rb7 Qc8 21.Qf4+-) 20.Qf4+= h6 21.h4 (21.Rb7 Qc8+=) 21...Rg8 (21...Qd8 22.Rb7 Kg8 23.g4=+) 22.Rb7= Qd8 23.Nd4 g5 24.Qf3 Rg7? (24...g4 25.Qf4 Rg7 26.Nf5 ef5 27.e6+- (worse 27.Qh6 Kg8 28.e6 Qf8+-)) 25.Nf5 (better 25.Nc6 Qc8 A) 26.Na7?! A1) 26...Nh4?? 27.Qf6 Qe8 28.Nb5+- (28.Qh6?! Nf5 29.Qh5 Kg8+-); A2) 26...Qe8+=; B) 26.Rb8 Rb8 27.Rb8 Qb8 28.Nb8+-) 25...ef5+- 26.Qf5 Qc8 (26...Qe8!?+-) 27.Qf6 Kg8 28.Qh6 Rg6 29.Qh5 gh4 (29...Rg7 30.hg5 Qe8 31.e6+-) 30.Qh4 (better 30.e6 Qe6 31.Rb8 Qe8 32.Re8 Re8 33.Kf1+-) 30...Kg7 31.Re7 Rb8 32.Re1 Qf5 (32...Rb7 33.Rb7 Qb7 34.Qf4+-) 33.e6+- (33.Ra7? Rh8 34.Rf7 Qf7-+) 33...Rb1 34.ef7 Re1 35.Re1 Kf7?? (better 35...Rf6+-) 36.Re7 Kf8 37.Rb7 (37.Rb7 Qg5 38.Qh2 Qg2 39.Qg2 Rg2 40.Kg2+-; 37.Ra7? Qb1 38.Kh2 Qb8 39.f4 Qa7 40.Qd8 Kg7 41.Qd5 Qe7 42.Qd4 Qf6 43.Qd7 Qf7 44.Qd4 Kg8-+) 1–0. Fusi,Christopher (2210) – Herzog,Ferdinand, AUT–chT2O, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qc7)

6.bc5 bc5 7.d4 Nc6=.

6.bc5 bc5 7.d4 cd4 8.cd4 Bb4 9.Bd2 a5 10.Na3 Ba3 11.Qa4 Nc6 12.Qa3 Nge7 13.Rc1 Qb6 14.Bd3 Ba6 15.Rb1 Nb4? (better 15...Qc7+=) 16.Bb4+- Bd3 17.Rb3 (17.Qd3?! ab4 18.a3 Ra4+=) 17...Bc4 18.Be7 Bb3 19.Bc5 Qa6 Black prepares the advance a4 20.ab3 a4 (20...Qb5 21.Qc1 h6 22.Bd6+-) 21.Qa4 Qa4 22.ba4 Ra4 23.Ke2 f6 24.Rb1 Kf7 25.Rb7 Kg6 26.g3 (26.Re7 Ra2 27.Ke3 Rb8+-) 26...Re8 (26...Ra6 27.Bb4 Ra4 28.Bd2+-) 27.h3 (27.Nh4 Kh6 28.ef6 gf6+-) 27...f5 28.Nh4 Kh6 29.Ng2 (29.Bb4 Ra2 30.Bd2 g5+-) 29...g5 30.h4 Ra2 31.Kf3 g4 (31...gh4 32.gh4 Rc2 33.Bb4+-) 32.Ke3 Rc2 (32...Raa8 33.Nf4 Rab8 34.Rf7+-) 33.Nf4 Ra2 1–0. Rantanen,Y (2330) – Raivio,Y (2145), 10th Open Jyvaskyla FIN, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qc7)

5.c3 Qd7

6.a3 c4 7.d4 cd3 8.Bd3 Ba6 9.0-0 Ne7 10.a4 (10.Re1 Bd3 11.Qd3 Qc7=) 10...Bd3= 11.Qd3 a5 12.b5 Qc7 13.Bf4 (13.Be3 Nd7=) 13...Nd7 14.Re1 Rc8 15.Bg3 Nc5 16.Qc2 Ne4 17.Nd4 Nc3 18.Nc3 Qc3 19.Qd1 (19.Qc3 Rc3 20.Rec1 Rd3-/+) 19...Rc4 20.Ne2 Qb4 (20...Qc2 21.Qc2 Rc2 22.Rac1-/+) 21.Qd3 Nf5 22.Reb1 Qc5 23.Bf4 Be7 24.g4 (24.Rc1!?-/+) 24...Nd4-+ 25.Ng3 (better 25.Rc1 Ne2 26.Qe2-+) 25...Nc2 26.Nh5 (26.Ra2 Nb4 (26...Rf4?! 27.Rc2 Qd4 28.Qd4 Rd4 29.Ra1-+) 27.Rb4 Qb4-+) 26...g6 27.Ng7 Kd7 28.Be3 (28.Ra2 Nb4 (worse 28...Rf4 29.Rc2 Qd4 30.Qd4 Rd4 31.Rbc1-+) 29.Rb4 Qb4-+) 28...Ne3 (28...Ne3 29.fe3 Rg8-+) 0–1. Steil Antoni,F (2180) – Mortensen,Rogvi (1940), Runavik Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Ne7 7.d4 Ba6 8.Ba6 Na6 9.0-0 Nc7 10.bc5 bc5 11.dc5 Na6 12.c4 Nc5 13.Be3 Na4 (13...Rc8 14.Nc3=) 14.Nbd2+= Nb2 15.Qc2 Nc4 16.Nc4 dc4 17.Qc4 Nd5 18.Rfd1 Rc8 (worse 18...Ne3 19.fe3 Rc8 20.Rd7 Rc4 21.Ra7+-) 19.Qa6 Be7 20.Qa7 (20.Ba7? Ra8-+) 20...Qa7 21.Ba7 Ra8 22.Bd4 Ra4 Attacking the isolated pawn on a3 23.Rdc1 (23.Bb2!?+-) 23...Kd7+= 24.Bc5 Rha8 25.g3 (25.Be7 Ke7 26.Rcb1 Ra3 27.Ra3 Ra3 28.Rb7 Kf8=) 25...h6 (25...Bc5 26.Rc5 f6 27.Kg2=) 26.Be7 Ke7 27.Rcb1 Ra3 28.Rb7 Kf8 29.Ra3 Ra3 30.Nd4 g5 31.Kg2 (31.h3 Ra2=) 31...g4 32.h3 h5 33.hg4 hg4 34.Nc6 Rd3 35.Ra7 Rc3 (35...Rd2 36.Ra4=) 36.Nd4 Rc5 37.Nb3 Rc2 38.Ra4 (38.Kf1 Nb6 39.Ke1 Rc3=+) 38...Ne3=+ 39.Kg1 Nc4 40.Ra8 Kg7 41.Rc8 Ne3 42.Nc5 Rc1 43.Kh2 Rc2 44.Kg1 ½–½. Chuprov,Dmitry (2595) – Meier,Georg (2570), Aeroflot Open, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.a3 Ne7 7.d4 Ba6 8.Ba6 Na6 9.Qe2 Nc7 (9...Qa4 10.0-0=) 10.bc5 (10.dc5 bc5 11.bc5 Nf5=) 10...bc5 11.dc5 Nf5 12.g4 Nh6 (12...Ne7 13.Be3=) 13.Nd4 (13.c6 Qc6 14.Nd4 Qa4=) 13...Bc5= 14.Nd2 (14.Bh6!? gh6 15.Nd2=) 14...Bd4=+ 15.cd4 Qa4 (15...Qc6 16.Qd3=) 16.Nf3 Ng4 (16...Qb3 17.Bd2=) 17.Rg1 Nh6 18.Bh6 gh6 19.Qd2 (19.Qd1 Qd1 20.Kd1 Ke7=) 19...Nb5 Exerts pressure on the isolated pawn 20.Rg3 (20.Qb4 Qb4 21.ab4 Rc8=+) 20...Rc8 (20...Na3 21.Kf1 Qb3 22.Kg2=+) 21.Rc1 Ke7 (21...Rc4 22.Rc4 dc4 23.Qb4 Qb4 24.ab4-/+) 22.Qh6 (22.Rc8!? Rc8 23.Qh6=) 22...Rc1=+ (22...Nd4 23.Qf6 Ke8 24.Qh8 Ke7 25.Qf6 Kd7 26.Qf7 Kd8 27.Rg8 Qe8 28.Qe8) 23.Qc1 Qa3 (23...Na3? 24.Qc7 Qd7 25.Qc5 Ke8 26.Qa3+-) 24.Qg5 (24.Qf4 Qa1 25.Kd2 Qc3 26.Ke2 Qc2 27.Kf1 Rf8=+) 24...Kd7 (24...Ke8 25.Kf1-/+) 25.Kf1 (25.Qf4 Qa1 26.Kd2 Qc3 27.Ke2 Qc2 28.Ke1 Ke8=+) 25...Qd3 (25...Nd4 26.Nd4 Qa1 27.Kg2 Qd4 28.Qg7 Qe4 29.Kg1-/+) 26.Kg2=+ Nd4 (26...Rf8 27.Qg7 Ke7 28.Ng5=) 27.Qf4= Nf5 28.Qa4 Kd8 (28...Kc8 29.Rg4 Qb1 30.Qa7=) 29.Qa7 Ng3 30.hg3 Rf8?? (better 30...Qc4 31.Ng5 Rf8=) 31.Nd4+- Qc4 (31...Kc8 32.Qc5 Kb7 33.Qf8 Qd4 34.Qf7 Kb8 35.Qe6 Qe4 36.Kh3+-) 32.Qb8 Kd7 33.Qd6 (33.Qf8 Qd4 34.Qf7 Kd8 35.Qe6 Qe4 36.Kh2 Qf3 37.Qg8 Ke7 38.Qg7 Ke6+-) 33...Kc8 (33...Ke8 34.Nc6 Qc6 35.Qc6 Ke7 36.Qc5 Ke8 37.f4+-) 34.Qf8 (34.Qf8 Kc7 35.Qf7 Kb6 36.Qe6 Ka5 37.Qg4+-) 1–0. Ardelean,George_Catalin (2435) – Miljanic,Boro (2425), Bucharest–A Bucharest ROU, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Na3 Ba6 7.b5 Bb7 8.Nc2 a6 9.a4 ab5 10.ab5 Ra1 11.Na1 c4 12.Nd4 Bc5 13.Nac2 Ne7 14.d3 Bd4 15.Nd4 cd3 16.Qd3 Qc7 17.f4 Nd7 18.Be2 Nc5 19.Qh3 Ne4 Exerts pressure on the backward pawn 20.Bb2 Ng6 21.0-0 0-0 22.Qe3 Rc8 23.Rc1 Ne7 24.g4 g5 25.fg5 Ng6 26.c4 Qe5 27.cd5 Rc1 28.Bc1 Qd5 29.Bf3 Ne5 30.Be4 Qe4 31.Qe4 Be4 32.h3 Nc4 33.Nc6 Kf8 34.Bf4 Bc6 35.bc6 Ke7 36.Bc7 b5 37.Kf2 b4 38.Ke2 b3 39.Kd3 b2 40.Kc2 e5 41.h4 e4 42.Bg3 e3 43.h5 e2 44.g6 (44.Kb1!?-/+) 44...fg6-+ 45.hg6 hg6 46.c7 Kd7 47.Kb1 Ne5!! 48.Kb2 (48.Be5 e1Q Double attack (48...e1Q Decoy)) 48...e1Q 49.Be1 Nd3 50.Kc3 Ne1 51.Kd4 g5 52.Ke4 Kc7 53.Kf5 Nf3 54.Ke4 Nh4 55.Ke5 Kd7 56.Kf6 Nf3 57.Kf5 Kd6 58.Ke4 Nh4 59.Ke3 Ke5 60.Kf2 Kf4 61.Kg1 Kg4 62.Kh2 If White now would get Kf3 in, he might survive 62...Ng6 63.Kg2 Kf4 64.Kf2 g4 65.Kg2 g3 66.Kg1 Kf3 67.Kh1 (67.Kf1 g2 68.Ke1 Ke3 69.Kd1 Kd3 70.Kc1 Kc3 71.Kb1 g1Q 72.Ka2 Qf2 73.Ka3 Qa7) 67...Nf4 Black prepares the advance g2 68.Kg1 Ne2 69.Kh1 (69.Kf1 g2 70.Ke1 g1Q 71.Kd2 Qc1 72.Kd3 Qc3) 69...g2 70.Kh2 g1Q 71.Kh3 Qh1 (71...Qg3) 0–1. Kivijarvi,Juha – Tuominen,Risto, Salo We SalSK, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Na3 Ba6 7.b5 Bb7 8.Nc2 a6 9.a4 ab5 10.Bb5 Nc6 (10...Bc6 11.Bc6 Nc6 12.d3=) 11.d4 Ba6 12.Qe2 (12.0-0 Bb5 13.ab5 Na7+=) 12...c4 13.Bc6 Qc6 14.0-0 (14.a5 Bb7=) 14...Bb7 Exerts pressure on the isolated pawn 15.Qd1 Qd7 16.Nb4 Ne7 (16...b5 17.a5=+) 17.h4 (17.Bg5!?=) 17...Nc6=+ 18.Ba3 Nb4 (18...Nd8!?=+) 19.Bb4= Bb4 20.cb4 0-0 21.Qc2 f5 (21...Rfc8 22.a5=) 22.ef6 gf6 23.Ra3 Qd6 24.Qd2 Kh8 25.h5 Bc6 26.Nh4 (26.Rfa1 Be8=) 26...Qe7 (26...Be8 27.Qh6 Qb4 28.Re3+=) 27.Rh3 (better 27.Qh6 Be8 28.Re1=) 27...Kg7?? (27...Rfc8 28.Ng6 hg6 29.hg6 Kg8+-) 28.Re1+- f5? (28...Qd6 29.Rg3 Kf7+-) 29.Rg3+- Kh8 30.Qh6 (30.Qh6 Rg8 31.Ng6 Rg6 32.hg6+-) 1–0. Kogan,A (2480) – Paillard,D (2240), XVIII Open Andorra AND, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Na3 cb4 7.cb4 Nc6 (7...Ba6 8.Nc2=) 8.Nc2 (8.b5 Na5+=) 8...Bb7 (8...Bb4 9.Nb4 Nb4 10.Ba3=) 9.a3 d4 10.Bb2 d3 11.Ne3 Nge7 (11...a5 12.b5 Na7 13.Nc4=) 12.g3 (12.Qb1 Rd8 13.Bc3=+) 12...Nd5 13.Bg2 a5 14.b5 Nce7 (14...Nd8 15.a4=) 15.Qa4 (15.Nc4 Nc8 16.a4 Bc5=) 15...Nc7 16.0-0 Nb5 17.Nc4 (17.Rfc1 Ng6-/+) 17...Nc8-/+ 18.Nd4 (18.Ne1 Ra7=+) 18...Bg2 (18...Nd4?! 19.Qd7 Kd7 20.Bb7 Ne2 21.Kg2=) 19.Kg2 Nc7 20.Qb3 (20.Qd7 Kd7 21.a4 Nd5-/+) 20...Qd5-+ 21.f3 b5 Black intends a4 22.Rac1 (22.Ne3!? Qb3 23.Nb3-/+) 22...a4 (22...bc4 23.Rc4 Na6 24.Rfc1-+) 23.Qd3 bc4 24.Rc4 Qd7 (24...Qe5?! 25.Qc2 Bd6 26.Rc7=) 25.Qc2 Nd5 26.Nb5 Ncb6 27.Nc7 Nc7 28.Rc7 Rc8 29.Rc8 Qc8 30.Qe4 (30.Qc8 Nc8 31.Rc1 Kd7-+) 30...Be7 31.Bd4 Nd5 32.f4 (32.Bf2 Qc6 33.Rb1 0-0-+) 32...0-0 33.f5 Qc6 34.Rf3 ef5 35.Qf5 Nc7 (35...Ba3 36.h3-+) 36.Be3 (36.Bb2 Ne6 37.h4 Bc5-+) 36...Ne6 37.d4 g6 38.Qd3 Rd8 39.g4 (39.Qd2-+) 39...Qd5 0–1. Kabanov,Nikolai (2505) – Iljushin,Alexei (2530), 58th Russian Championship Semi–Final, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Na3 cb4 7.Bb5 (7.cb4!? Nc6 8.b5+=) 7...Nc6= 8.Nd4 (8.cb4 Nge7= (8...Bb4? 9.Qa4 Nge7 10.Nd4+-)) 8...Bb7=+ 9.Qa4 (9.Bc6!? Bc6 10.cb4 Bb4 11.Qb3=+) 9...Nge7-/+ 10.cb4 a6 11.Bc6 Nc6 12.Nc6 Bc6 13.Qb3 Ba4 14.Qg3 Bb4 15.Qg7 0-0-0 16.Qg4 (16.Rb1 Rdg8 17.Qf6 Be7=+) 16...Bc5 (16...d4 17.Qf4-/+) 17.Bb2 (17.0-0 Rhg8 18.Qf4 h5-/+) 17...d4 (17...Rdg8 18.Qh3 d4-/+) 18.Nc4 (better 18.0-0!?-/+) 18...Rhg8-+ 19.Qf3? (better 19.Qh3 Bb5 20.Rc1 Bc4 21.Rc4-+) 19...Bc6 20.Qb3 (20.Qf4 Rg2 21.Rf1 Kb8-+) 20...Qd5 (20...b5 21.Rc1 Kb8-+ (21...bc4?! 22.Qc4 Bb6 23.Qc6 Qc6 24.Rc6 Kb7 25.Rc4=+)) 21.Nb6?? (21.0-0-0 b5 22.Na5 Rg2 23.Nc6 Qc6 24.Kb1 Qe4 25.Qc2 Qc2 26.Kc2 d3 27.Kb3-+) 21...Bb6 22.Qb6 (22.0-0-0 Qb3 23.ab3 Rg2 24.Rdg1-+) 22…Qe4 (22...Qe4 23.Kd1 A) 23...Qg2?! A1) 24.Qa6?? Bb7 25.Qf1 Qf3 26.Kc2 d3 (26...Qh1?! 27.Qh1 Bh1 28.Rh1-/+) 27.Kb1 Qh1 28.Qh1 Bh1-+; A2) 24.Re1-/+; B) 23...Ba4 24.Qb3 Bb3 25.ab3 Rg2-+) 0–1. Hoiberg,Nina (2235) – Sorensen,Bent (2320), Naestved op, 1988. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Na3 Bb7 7.Nc2 Ne7 8.Be2 (8.d4 cb4 9.cb4 Ba6+=) 8...Ng6 (8...d4 9.cd4 cb4 10.Nb4=) 9.d4 Ba6 10.h4 Be2 11.Qe2 h5 12.bc5 bc5 13.0-0 Nc6 14.Ba3 c4 15.Bf8 Kf8 16.Rab1 Nf4 (16...Rh6 17.Rb2=) 17.Qd2 Nd3 18.Nce1 Ne1 19.Rfe1 f5 20.Qb2 g6 21.Ng5 Re8 22.Qa3 Re7 23.Qd6 Ke8 24.Qd7 Kd7 25.Rb7 Kd8 (25...Kc8 26.Re7 Ne7 27.Ne6+-) 26.Nf7 Rf7 27.Rf7 Ne7 (27...Re8 28.Rb1+-) 28.Rb1 Ke8 (28...Nc8 29.Rbb7 f4 30.Rfd7 Ke8 31.Rg7+-) 29.Rf6 (29.Rf6 Rh7 30.Rb8 Kd7 31.Rb7 Kc8 32.Ra7+-) 1–0. Reinderman,Dimitri (2390) – Boersma,J, Dieren op, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.b5 a6 7.a4 (7.ba6 Nc6=) 7...c4 8.Na3 (8.ba6 Ba6 9.Ba3 Ne7=) 8...ab5 (8...Qc7 9.d3 cd3 10.Qd3=+) 9.ab5 (9.Nb5 Ba6 10.Nbd4 Qc7=) 9...Bc5 (9...Qc7!?=+) 10.d3= cd3 (10...Bb7 11.dc4 Qc7 12.Nc2=) 11.Bd3+= Ne7 (11...Qc7 12.Nc2 Ra1 13.Na1=) 12.0-0 (12.Nc2 Ra1 13.Na1 Ng6=) 12...Ng6 (12...Qc7 13.Re1=) 13.Re1 (13.Nc2 Ra1 14.Na1 Qc7=) 13...Qc7= 14.Nc2 Ra1 15.Na1 Nd7 Can e5 get defended? 16.Nb3 (16.Qe2 Be7=) 16...Be7 (worse 16...Nde5 A) 17.Nc5?! Nf3 (worse 17...bc5 18.Ne5 Ne5 19.b6+=) 18.Qf3 Qc5=; B) 17.Ne5 Ne5 18.Nc5 bc5 19.b6+-) 17.Bg6 hg6 18.Qc2 (18.Bd2 Bb7=) 18...Nc5 (18...Rh5 19.Bf4 g5 20.Bg3=+) 19.Nbd4 (19.Nc5 Qc5 20.Be3 Qb5=) 19...Bb7 (19...Ne4 20.Be3=) 20.Nd2 (20.Bg5 Bg5 21.Ng5 Ne4=) 20...Ne4 21.Ne4 de4 22.Nc6 (22.Bf4 Bf6=) 22...Bc6=+ 23.bc6 Qe5 24.Qe4? (24.h3=+) 24...Qe4?? (better 24...Qh2 25.Kf1 Rh4-/+) 25.Re4= Bc5 (25...Bd6=) 26.Be3 (26.Ra4!? Ke7 27.Ra7 Kf6 28.Bf4=) 26...Ke7=+ 27.Ra4 Be3 28.Ra7 Kf6 29.fe3 Rc8 30.c7 Ke7 (30...Ke5!?-/+) 31.Rb7= Kd7 32.Rb6 Rc7 33.Rb3 Kd6 34.Kf2 Kd5 35.Ke2 Kc4 36.Ra3 Rb7 37.Kf3 (37.e4 Rb2 38.Kf3 Rb3=+) 37...Kd3 38.h4 (38.e4 Rc7-/+) 38...e5 39.g4 Rb1 (39...f6 40.Ra6=+) 40.Ra7 (40.c4 Kc4 41.Ke4 f6=) 40...Rf1-/+ 41.Kg2 Rf6 42.Re7 (42.c4 e4-/+) 42...e4 (worse 42...Kc3 43.Re5 Kd3 44.g5+=) 43.c4 Ke3 44.c5 Kf4 (44...Kd3 45.g5 Rf5 46.c6=+) 45.g5 Rc6 46.Kh3?? (46.Rf7 Kg4 47.Re7 Kh4=) 46...Rc5?? (better 46...f5 47.Rg7 e3-+) 47.Rf7=+ Rf5 48.Rg7 e3 49.Re7?? (better 49.Kg2=+) 49...Kf3-+ 50.Re6 e2 0–1. Ossa,Orlando (2300) – Hernandez Basante,F (2275), zt, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.b5 Ne7 7.d4 a6 8.a4 Bb7 9.Na3 Nf5 10.Bd3 cd4 11.cd4 (worse 11.Nd4 Qc7 12.Kd2 g6 (worse 12...Qe5 13.Bf5 Qf4 14.Ke2 Qe5 15.Kd3+=) 13.Nf5 gf5 (worse 13...ef5 14.ba6 Na6 15.Nb5=) 14.ba6 Ba6-/+) 11...Bb4 12.Bd2 Qe7 (12...Ba3 13.Ra3 ab5 14.Bb5=) 13.Nc2 (13.Bb4 Qb4 14.Qd2 Qe7+-) 13...Bd2+= 14.Qd2 Nd7 (14...ab5 15.ab5 Ra1 16.Na1+=) 15.0-0 (15.ba6 Ba6 16.Bf5 ef5+-) 15...Nh4 16.Nh4 Qh4 17.f4 g6 (17...ab5 18.ab5 0-0 19.f5+-) 18.Qb4 (18.Qe2 a5+-) 18...a5 19.Qa3 Rc8 20.Ne3 Qe7 21.Qe7 Ke7 22.Rac1 f6 23.Kf2 Rhf8 24.Ke2 f5 25.Kd2 h6 26.Rc8 Rc8 27.g4 Nf8 (27...Rf8 28.h4 fg4 29.Bg6+-) 28.gf5 ef5 29.Bc2 (29.Bf5 gf5 30.Nf5 Kd7+-) 29...Ne6 30.Kd3 Nf8 31.Bb3 Ke6 32.h4 h5 33.Re1 Rc7 34.Nf1 (34.Rg1 Rc8+-) 34...Kf7 35.Ne3 Ke6 36.Kd2 Ba8 37.Re2 Bb7 38.Rf2 Rc8 39.Rf1 Rc7 40.Rg1 Ba8 41.Rf1 ½–½. Moravec,Vit (2090) – Yakimenko,Alexander A (2210), CZE–ChT2C, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

6.Be2 cb4=+ 7.cb4 Bb4 8.0-0 Ba6 9.Ba6 Na6 10.d4 h6 11.Bd2 Bd2 12.Qd2 Ne7 13.Nc3 Nc7 14.Ne2 0-0 15.Ng3 Nf5 (15...Rac8 16.Rfc1=+) 16.Nh5 (16.Nf5 ef5 17.Rfc1 Rac8=+) 16...Qe7 17.g4 (17.Rac1!? Rfc8 18.Nf4-/+) 17...Nh4-+ 18.Nh4 Qh4 19.Qf4 Rac8 20.Rac1 Nb5 21.f3 Qg5 22.Qg5 hg5 0-1. MorningCoffee (2280) - opperwezen (2625), 2017 Summer Marathon, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.a3 Ba6

7.d3 Nc6 8.Nbd2 (8.Be2 d4 9.Qa4 Nb8 10.Qd7 Nd7 11.cd4 cb4 12.ab4 Bb4 13.Bd2 Bd2 14.Nbd2 Bb7=) 8...Rc8 (8...d4 9.c4 cb4 10.ab4 Nb4 11.Nb3=) 9.Be2 d4 10.cd4 (10.c4 cb4 11.ab4 Nb4=) 10...cb4= 11.0-0 Bb7 (11...Nd4? 12.Nd4 Bb7 13.N2f3+-) 12.ab4 Bb4 13.Ne4 Nge7 (13...f5 14.Ned2 A) worse 14...Nd4 15.Nd4 (15.Ra7?? Rc1 16.Nd4 Rd1 17.Rd1 Qd4 18.Rb7 Qe5-+) 15...Qd4 16.Ra7+-; B) 14...Nge7=+) 14.Bd2+= 0-0 15.Bb4 Nb4 16.Ra7 Nbc6 17.Ra1 (17.Rb7 Qb7 18.Nd6=) 17...Nf5=+ Increases the pressure on the backward pawn 18.Rb1 Ncd4 19.Re1 (19.Rb6? Rc1!? 20.Qd2 Rc2-+) 19...b5 20.Nd4 Nd4 21.Nd6 Rc5 22.Bf3? (better 22.Bg4=+) 22...Bf3-+ (22...Nf3?! 23.gf3 Bc6 24.d4=+) 23.gf3 f6 24.Ne4 Re5 25.f4 Rf5 26.Qg4 Qc7 27.Rec1 Qf4 28.Qf4 Ne2 29.Kf1 Nf4 30.Rc7 (30.Rc5 Rc5 31.Nc5 Rb8-+) 30...Ra8 (30...Rh5 31.Kg1-+) 31.d4 Rd5 32.Nc3 Rd4 33.Nb5 Rb4! 34.Nc3 (34.Rb4 Ra1) 34...Rb1 35.Nb1 Ra1 36.Rb7 e5 37.Ke1 h5 38.Kd2 (38.Kf1 Kh7-+) 38...Ra2 39.Ke3 Nh3 0–1. Pytel,Martin (2235) – Ambroz,Jan (2400), Biel Credis op, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.d3 d4 8.bc5 (8.Be2 Bb7=) 8...Bc5 9.c4 Nc6 10.Nbd2 Nge7 11.Ne4 Ng6 12.Nc5 bc5 13.Ng5 Nce5 14.f4 Nc6 15.Ne4 Qc7 16.Qa4 Bc8 17.Qb5 (17.Nc5 0-0=+) 17...e5 (17...f5 18.Nc5 Rb8 19.Na6 Ba6 20.Qa6=+) 18.Nc5 (better 18.fe5!? 0-0 19.Be2=) 18...Rb8-/+ 19.Na6 (19.Qa4 Rb6-/+) 19...Ba6 20.Qa6 0-0 21.g3 (21.f5 Na5 22.fg6 Nb3 23.gf7 Kf7-+) 21...f5 (better 21...Na5!? 22.Bd2 Nb3-+) 22.Bg2 Rb6 (22...Rf6!? 23.Bd5 Kh8-/+) 23.Qa4= ef4 24.0-0 Na5?? (24...Nce5!? 25.Bf4 Nf4 26.Rf4 g5=) 25.Bf4?? (better 25.Qa5 fg3 26.hg3 Qg3 27.Qd5 Kh8 28.Qd4+-) 25...Nf4+= 26.Rf4 (worse 26.gf4 Nb3 27.Bd5 Kh8=+) 26...g5 27.Rff1 f4?? (better 27...Rb3+=) 28.Qa5+- f3 (28...Qg7 29.Rab1+-) 29.Qd5 (29.Qg5 Qg7 30.Qd5 Kh8 31.Rf3 Rf3 32.Bf3 Rb8+-) 29...Kg7 (29...Qf7 30.Bf3 Qd5 31.Bd5 Kg7 32.Rfe1+-) 30.Bf3 (30.Qd4 Rbf6 31.Rf3 Qd6 32.Qd6 Rd6+-) 30...Rbf6 (30...Qd8 31.Qe5 Qf6 32.Qc5+-) 31.Be2 (31.Qd4 Qd8 32.Qd8 Rd8+-) 31...Rd8 (31...Qd6 32.Qg5 Rg6 33.Qh5+-) 32.Qe4 (32.Qg5!? Rg6 33.Qh4 Kg8+-) 32...Rf1 (32...Qd6 33.Rf6 Qf6 34.Rf1+-) 33.Rf1 h6 (33...Rd7 34.Qf5 Qd8 35.Bg4+-) 34.Rf5 1–0. Buecker,Stefan (2300) – Borngaesser,Rene (2410), NRW–ch, 1987. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.d3 Ne7 8.Bf4 (8.bc5 bc5 9.Be3 Ng6=) 8...Ng6 9.Bg3 Be7 (9...d4 10.Be2=) 10.h4 h5 11.Be2 d4 12.bc5 (12.0-0 Bb7=) 12...Bc5 13.0-0 (13.Nd4 Bd4 14.Bf3 Nc6 15.Bc6 Qc6 16.cd4 Qg2-/+) 13...Nc6 14.c4 Rd8 (14...Bb7 15.Nbd2=) 15.Re1 (15.Nbd2 Bb7=) 15...Nge7 (15...Be7 16.Nbd2=) 16.Ng5 Nf5 17.Bh5 g6 18.Bg4 (18.Bf3 Be7=+) 18...Nh4 19.Nd2 (19.Ne4 Be7=) 19...Nf5=+ 20.Nde4 Ng3 21.Nf6 Ke7 22.fg3 Qc7 (better 22...Qb7!?=) 23.Qf3+- Kf8?? (23...Rhf8 24.Nd5! Rd5 25.Qf6 Ke8 26.cd5 Be7 27.Ne6 fe6 28.Qe6 Kd8 29.dc6 Bc5+-) 24.Nd5!+- Qb7 (24...ed5 25.Ne6 Double attack (25.Be6 Decoy)) 25.Ne6 Ke8 26.Ndc7 (26.Ndc7 Qc7 27.Nc7 Kf8 28.Qc6+-) 1–0. Narmontas,Matas (2385) – Batkovskyte,Dominyka (2080), Plunge LTU, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.d4 Bf1= 8.Kf1 Ne7 9.g3 Nc8 10.Kg2 a5 11.bc5 bc5 12.a4 (12.Be3 cd4 13.cd4 Nc6=) 12...Na6=+ 13.Na3 Nb6 14.Nb5 Be7 (14...Rb8 15.Rb1=+) 15.h4 (15.Bg5 0-0=) 15...Nc4 16.Ng5 (16.Bg5 0-0=+) 16...Bf8 (16...cd4 17.cd4 h6 18.Nf3-/+) 17.f4 (17.Rb1 cd4 18.cd4 h6=+) 17...h6 18.Nh3 h5 (18...Rb8 19.Rf1-/+) 19.f5 ef5 20.Qf3 cd4 21.cd4 Nb4 22.Bg5 Be7 23.Nf4 Attacks the isolani on d5 (23.Be7 Ke7 24.Nf4 Kd8=+) 23...Nd2 (23...Bg5!? 24.hg5 g6=+) 24.Qe2= Bg5 25.hg5 Can h5 get defended? 25...Ne4 26.e6 (better 26.Nh5!? Ke7 27.Ng7 Rh1 28.Rh1+=) 26...fe6-/+ 27.Ng6 (27.Rh5 Kf7-/+) 27...Rh7 (27...Rc8 28.Rac1 Rh7+=) 28.Rh5= Rh5 29.Qh5 0-0-0 30.Rc1 Kb8 31.Ne5 Qe7 The isolani on g5 becomes a target 32.Rc7 Qg5 33.Qg5 Ng5 34.Nd7 Rd7 35.Rd7 Ne4 36.Rg7 Nd3 37.Rg6 (37.Nc7 Nb2+-) 37...f4 (37...Ne1 38.Kh1+-) 38.g4 (38.Rg8 Kb7 39.Rg7 Kb8 40.gf4 Nf4 41.Kf3 Nd3+-) 38...Ne1 (better 38...Nd2!? 39.Rg8 Kb7 40.Rg7 Kb6=) 39.Kf1+- Nc2 (39...Nf3 40.Re6 Nfd2 41.Ke1 Nf3 42.Kd1+-) 40.Re6 (40.Ke2 Nb4+-) 40...f3 41.Re8 (41.Rb6 Ka8 42.Nc7 Ka7 43.Nd5 Nc3 44.Nc3 Kb6+-) 41...Kb7+- 42.Rf8 (better 42.Re4!? de4 43.Kf2+-) 42...Ne3= 43.Kg1 f2 44.Rf2 ½–½. Helin,Mikael (2060) – Matamoros Franco,C (2470), 24th Politiken Cup, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.g3 Bf1 8.Kf1 Nc6 9.d4 a5 10.bc5 bc5 11.a4 (11.Kg2 Nge7=+) 11...cd4 12.cd4 Bb4 13.Na3 (13.Kg2 Nge7=+) 13...Nge7 14.Nb5 0-0 15.Bg5 f6 (15...Na7 16.Be7 Be7 17.Na7 Ra7 18.Rb1-/+) 16.ef6 gf6 17.Bf4 Ng6 18.Bh6 Rf7 19.h4 e5 20.h5 Nge7 21.g4 e4 (21...Qg4? 22.Rg1 Qg1 23.Ng1+-) 22.Nh4 Kh8 23.Kg2 f5 24.g5 f4 25.Qg4?? White prepares the advance g6 (25.g6 Rg8 26.Kf1=) 25...Nf5 (better 25...Qg4 26.Kf1 Qh5-+) 26.Nf5=+ Qf5 (26...Rf5 27.g6 f3 28.Kg3 Bd6 29.Nd6 Qd6 30.Bf4=+) 27.Qf5= Rf5 28.g6 Bf8 (28...Ne7 29.Rag1=+) 29.Bf8 Rff8 (29...Raf8 30.Rag1=) 30.Rac1+= Nb4? (better 30...Rf6+=) 31.Nd6?? (better 31.Rc7 Rf6 32.Rh7 Kg8 33.Rc1+-) 31...hg6= 32.hg6 (32.Rc7!? Rf6 33.Nc8=) 32...Kg7-/+ 33.Rhg1 Kf6 1–0. Helin,Mikael (1960) – Maly,Ant (1895), Highlands Open, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

7.g3 Bf1 8.Kf1 d4 9.Kg2=+.

7.g3 Bf1 8.Kf1 Ne7 9.d4 h5 10.Nh4 Na6 (10...a5 11.bc5 (worse 11.dc5 bc5 12.bc5 Nec6=+) 11...bc5 12.Kg2= (worse 12.dc5 Nec6-/+)) 11.Kg2+= Nc7 12.Bg5 Nc6 13.f4 (13.Nf3 c4+=) 13...Be7 (13...a5 14.bc5 bc5 15.Qd3=) 14.Be7 Ne7 15.Rf1 g6 (15...Rc8 16.Qd3=) 16.Nd2 (16.dc5 bc5 17.Nd2 Qc6+=) 16...Nb5 (16...cd4 17.cd4 Nb5 18.Ndf3=) 17.Nb1 (17.dc5!? bc5 18.Qf3+=) 17...cd4=+ 18.cd4 Rc8 (better 18...a5 19.Qd2 ab4=+) 19.Qd3 (better 19.a4 Nc3 20.Nc3 Rc3 21.Rf2=+) 19...Rc4-+ 20.Qe3 (20.Nd2 Rc3 21.Qb1 Nd4-/+) 20...Nd4 21.Qd3 Nef5 (21...Qb5 22.Nc3 Qc6 23.Kg1-+) 22.Nd2-/+ Rc7 23.Kh1 (23.Ndf3 Nf3 24.Nf3 0-0-+) 23...Nh4-+ 24.gh4 (24.Qd4 Nf5 25.Qd3 Ke7-+) 24...Nf5 25.Rad1 (25.Rfc1 Ke7-+) 25...Ke7 26.b5 (26.Nf3 Rhc8 27.Nd4 Nd4 28.Qd4 Rc4-+) 26...Rhc8 27.Ne4 (27.Qb3-+) 27...de4 28.Qb3 (28.Qb1 Qe8 29.Qb4 Rc5 30.Qe4 Qb5-+) 28...Qe8 29.Rd6 (29.Qb4 Rc5 30.Qe4 Qb5 31.Qb7 Ke8 32.Qe4-+) 29...Nd6 30.ed6 Kd6 31.Rd1 (31.Qb4 Rc5 32.a4 f5-+) 31...Ke7 32.Qb2 (32.Qb4 Kf6 33.Qb2 e5 34.fe5 Kg7 35.e6 f6-+) 32...Rc5 33.a4 Rd8 34.Rg1 Qd7 (34...e3 35.Qg2 Rd2 36.Qb7 Qd7 37.Qd7 Kd7 38.Ra1 Rcc2 39.f5 Rh2 40.Kg1 Rcg2 41.Kf1 Rf2 42.Kg1 e2 43.fe6 Ke6 44.Rd1 ed1Q) 35.Qg7 e3 (35...e3 36.Qb2 Qd2 37.Qd4 Qd4 38.Kg2 Rc2 39.Kg3 Qd2 40.Kf3 Qf2 41.Ke4 Rc4 42.Ke5 Qf4) 0–1. Helin,Mikael (1970) – Ristic,Nebojsa B (2360), 2nd Festival Sport Summer, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

7.Ba6 Na6

8.0-0 Ne7 9.d4 Rc8 10.Qe2 Nc7 11.bc5 (11.dc5 bc5 12.Rd1 Nf5=) 11...bc5 12.dc5 Qa4 13.c4 (13.Rd1 Nb5=) 13...Nc6 (13...Qc4 14.Qc4 dc4 15.Nbd2=+) 14.Nc3 (14.cd5 Nd5 15.Be3 Nd8=) 14...Qc4 15.Qc4 dc4 16.Ne4 Nd5 17.Bg5 (17.Rd1 Nd8 18.Rd4 c3=) 17...h6 (17...Nb8 18.Rac1 h6 19.Bd2+=) 18.Bh4 (18.Bd2 f5 19.ef6 gf6=) 18...Na5 Attacks the isolani on c5 19.Rab1 Nb3 Increasing the pressure on the isolated pawn on c5 (19...Bc5 20.Nc5 c3 21.Rfc1+-) 20.Nfd2 (20.Nd6 Bd6 21.cd6 Kd7-/+) 20...Nd2-/+ 21.Nd2 Bc5 (21...Rc5!? 22.Rb8 Kd7 23.Rb7 Kc8 24.Ra7 c3=+) 22.Nc4= Kd7 23.Rb3 g5 (23...Rc6 24.Rb7 Rc7 25.Rc7 Kc7 26.Rc1=) 24.Bg3 h5 (24...Rc7 25.Rd1=) 25.h3 (25.h4 gh4 26.Bh4 Rhg8-/+) 25...Rb8 (25...Rc7 26.Bh2=+) 26.Rf3= Rh7 (26...h4 27.Bh2 (worse 27.Rf7 Ke8 28.Rf3 g4-+) 27...Rhf8 28.Rd1=) 27.Rd3 (27.Rd1 h4 28.Bh2 a6=) 27...g4 (27...h4 28.Bh2=) 28.h4 Ke7 (28...Rhh8 29.Rfd1=) 29.Rc1 Rhh8 30.Nd6 Bb6 31.Rc4 (31.Kf1 Rhd8+=) 31...Rhf8 (31...Rhd8 32.Bf4=) 32.Kh2 (32.Kf1 Rbd8=) 32...Kd7 (32...Rbd8!?=) 33.Ne4+= Bd8 (33...Ke7!?+=) 34.Nc3+- Rb3 35.Rcd4 Bb6?? (better 35...Kc8 36.Nd5 Rd3 37.Rd3 ed5 38.Rd5 Re8+-) 36.Nd5+- Bd4 37.Nf6 (37.Nf6 Kc6 38.Rb3+- (38.Rd4?! Rh8+-); 37.Rb3?! ed5 38.Rd3 Bc5 39.Rd5 Kc6+-) 1–0. Loncar,Robert (2440) – Jadrijevic,Ante (2240), Zagreb CRO, Open A, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

8.d4 Be7 9.0-0 Nh6 (9...cb4!? 10.ab4 Nc7=) 10.Bh6+- gh6 11.Qd2 h5 12.Qh6 h4 (12...Qa4 13.dc5 bc5 14.c4 dc4 15.Nbd2+=) 13.bc5 (13.Qg7 Rf8+-) 13...bc5 14.Nh4 (14.Qg7 Rf8+-) 14...Qa4 15.Nf3 Qc2 16.Rc1 Qf5 17.c4 Rg8 18.Nbd2 (18.Kh1!?+=) 18...cd4= 19.Kh1 Nc5 (19...dc4 20.Rc4 Rd8 A) 21.Nd4? Qf2 22.Rg1 Rg6 (22...Rd4?! 23.Qh7 Rf8 24.Rc8 Rd8 25.Rd8 Bd8 26.Ne4-+) 23.Qh7 Qd2-+ (23...Rd4 24.Qh8 Bf8 25.Rc8 Rd8 26.Rd8 Kd8 27.Qf8 Kd7 28.Ne4+-); B) 21.Rd4? Rd4 22.Nd4 Qf2-+; C) 21.Ra4=) 20.cd5 Nd3 21.Rf1 (21.Nd4? Qf2 22.Rg1 Qd4-+) 21...Bf8 22.Qf6 (22.Qh4 Rg4 23.Qh3+= (23.Nd4? Qg6 24.Qh3 Rd4-+)) 22...Qg4=+ 23.g3 Be7?? (better 23...Bg7 24.Qg5 Qg5 25.Ng5 h6= (worse 25...Be5 26.f4+=)) 24.Qh6+- Rg6 25.Qh7 ed5 26.Qh8 (better 26.Rab1!? Nc5 27.Kg2+-) 26...Rg8= 27.Qh7 Rg6 28.Rab1 0-0-0? (28...Nc5!?+-) 29.Rb3 (29.Qf7?! Rg7 30.Rfc1 Nc1 31.Rc1 Kb7 32.Rb1 Kc8+=) 29...Qf5 30.Nd4?? (better 30.e6 Nc5 31.Rc1 (31.Nd4?! Qf6 32.Rf3 Qd4 33.Rf7 Re6 34.Re7 Re7 35.Qe7 Nd3+-) 31...Qe6 32.Rb5+-) 30...Nf2= 31.Kg2 0–1. Parramon Ros,F (2065) – Garcia Martinez,Josep (2115), I Open Girona ESP, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6)

8.d4 h6 9.Qe2 (9.Nbd2 cd4 10.cd4 Qb5+=) 9...c4 10.a4 Nc7 11.Na3 (11.a5!?=) 11...Qa4=+ 12.0-0 (12.Nc2 Qc6=+) 12...Qd7 (12...a5 13.Nc2 Qc6 14.Be3=+) 13.Nc2 Ne7 (13...a5 14.Be3=+) 14.g3 (14.Re1 Nc6-/+) 14...Nc6-/+ 15.Nh4 (15.Ba3 Be7-/+) 15...Be7 (15...a5 16.ba5 ba5 17.Be3-/+) 16.Ng2 (16.Qg4 Rh7 17.f4-/+) 16...0-0-0 (16...0-0!?-/+) 17.f4 Kb8 (17...h5 18.Nge3=+) 18.g4 White plans f5 (18.Nge3 h5=+) 18...Nb5-/+ 19.Bd2 Rde8 (19...f6 20.Na3 Nc7 21.f5-/+) 20.f5=+ Bg5 21.h4 Bd2 22.Qd2 h5 (22...ef5 23.gf5 Rhg8 24.Nce3=+) 23.fe6 Re6 (23...Qe6 24.g5=+) 24.g5 Re7 (24...f6 25.ef6 gf6 26.gf6=+) 25.Nce3= Qh3 (25...Ree8!?=) 26.Qe1+= Ne5 (26...Qd7 27.Nf5 Re6 28.Ng7+-) 27.de5 Re5 28.Rf7 Rhe8 29.Qf2 (better 29.Qd2+-) 29...Re3= 30.Ne3 Re3 (worse 30...Qe3 31.Rg7 Qf2 32.Kf2+-) 31.Qf4 Kc8 32.Qf5 Qf5 33.Rf5 Rd3 (33...Re4!?=+) 34.Rf7= Rc3 (34...Nc3 35.Raa7 (35.Rg7?! a5+-) 35...Rd1 36.Kg2 Rd2 37.Kf3 Rd3 38.Kf4+-) 35.Rg7 Re3 (35...Rg3 36.Kh2 Re3 37.Rh7+=) 36.Rf1 (36.Rh7 d4+=) 36...Kd8 (36...Re8 37.g6 Nc7 38.Rf6+-) 37.g6+- c3? (37...Re8!?+-) 38.Rg8 (better 38.Rh7!? Nd6 39.g7 (39.Rh5?! Rg3 40.Kf2 Rg6+=) 39...Rg3 40.Kh2+-) 38...Re8?? (38...Kd7 39.Rf7 Kd6 40.Rd8 Kc6+-) 39.Re8 (39.Re8 Kd7 40.g7 Nc7 41.g8Q Kd6 42.Rf6 Ne6 43.Qe6 Kc7 44.Rf7) 1–0. Parpinel,Marco (2145) – Luciani,Valerio (2210), Verona ITA, Open April, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

8.d4 Ne7

9.0-0 Rc8 10.Re1 cd4 11.cd4 Nc7 12.h4 (12.Ra2 Nf5=) 12...Nf5 13.Bb2 Be7 14.g3 0-0 15.Nc3 Rfd8 16.Qd3 a6 17.Re2 Nb5 18.Nd1 (18.Nb5 ab5 19.Rc1 Rc1 20.Bc1 Rc8=+) 18...Qb7 19.Nd2 Na7 20.Nc3 Rc7 21.Rb1 Rdc8 22.Ba1 (22.Ree1 h6=+) 22...Bf8 23.Ree1 Nc6 24.Ne2 (24.b5 ab5 (worse 24...Ncd4 25.ba6 Qa7 26.g4+=) 25.Nb5 Rd7=+) 24...Nb8 25.a4 (25.Rec1 Rc1 26.Rc1 Rc1 27.Nc1 Be7=+) 25...Qc6 (25...b5 26.ab5 Qb5 27.Qb5 ab5 28.Rb3-/+) 26.Nc3 Qd7 27.Rb3 (27.b5 a5=+) 27...Nc6 28.Na2 a5 29.ba5 Na5 30.Rb5 Nc4 31.Nb1? (better 31.Rc1!?-/+) 31...Ra8-+ 32.Nbc3 Ra4! 33.Na4 Qb5 34.N2c3 (34.N4c3 Qa5-+) 34...Qa5 (34...Qc6!? 35.Rb1-+) 35.Rb1 Bb4 36.Qd1 (36.Na2 Be7 37.N2c3 Rc6-+) 36...Na3 37.Rc1 Rc4 (37...b5!? 38.Nc5-+) 38.Ne2 Bf8 39.Nb2 Rc1 40.Qc1 Qb5 41.Qd1 Nc4 42.Nd3 Na5 43.Bc3 Nc6 44.Ndf4 Qc4 45.Bb2 g6 46.h5 Bh6 47.hg6 hg6 48.Ng2 Nb4 49.g4 Qd3 50.Qf1 (50.Qd3 Nd3 51.Ba3 Ng7-/+) 50...Ne7-+ 51.f4 Nc2 52.Qf2 (52.Nc1 Qc4-/+) 52...Nc6-+ 53.Kh2 b5 54.f5 ef5 55.gf5 Qf5 56.Qf5 gf5 57.Nc3 (57.Kg3 Kg7-+) 57...N2d4 58.Kg3 (58.Nd5 Ne5 59.Nh4 Nec6-+) 58...Ne5 (58...Bg7 59.Nd5 Be5 60.Kf2-+) 59.Nb5 f4! 60.Kh3 (60.Nf4 Nf5 Deflection (60...Nf5 Decoy; 60...Nb5 Zwischenzug)) 60...Nb5 61.Be5 f3 62.Nh4 f2 63.Kg2 Be3 64.Nf5 Bc5 65.Bf6 Kh7 66.Ne7 Nc7 67.Bh4 Be7 68.Be7 Kg6 69.Kf2 Kf5 70.Kf3 Ke5 71.Bh4 Ne6 72.Bg3 Kd4 73.Bh4 f5 74.Ke2 Kc3 75.Bf6 d4 76.Be5 (76.Kd1 f4 77.Be5 f3-+) 76…Kc2 (76...Kc2 77.Bd4 Nd4 78.Ke3 Kc3-+) 0–1. Salmensuu,Olli – Sakalauskas,Vaidas, It Group IM Helsinki Chess Circuit, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.0-0 Ng6 10.Qe2 c4 11.Re1 Be7 12.Be3 Qa4 13.Nbd2 Nc7 14.Nf1 a5 15.Ng3 (15.Qb2!?=+) 15...ab4-/+ 16.ab4 Qa1 17.Ra1 Ra1 18.Nf1 0-0 19.g3 (better 19.Ne1!?-/+) 19...Nb5-+ 20.Kg2 Ra3 (20...Nc3?! 21.Qb2 Rf1 22.Kf1=+) 21.Bd2 (21.Qc2 f6-+ (21...Nc3?! 22.Bc1 Rfa8 23.Ba3 Ra3 24.Qb2-+)) 21...Nc3 22.Bc3 Rc3 0–1. craig4000 – marekt, ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.0-0 Ng6 10.h4 cd4 11.cd4 Rc8 12.h5=.

9.0-0 Ng6 10.h4 Be7 11.g3 (11.h5 Nf8=) 11...Nc7 12.Qd3 (12.h5 Nf8=) 12...a5 13.bc5 bc5 14.a4 Rb8 15.h5 Nf8 16.h6 (16.dc5 Bc5 17.Be3 Qc6=) 16...gh6 17.Bh6 Ng6 18.Nbd2 Qc6 19.Rab1 Kd7 (19...Rc8 20.dc5 Bc5 21.Nb3=+) 20.Ng5 (20.Qc2=) 20...f5 (better 20...cd4!? 21.cd4 Qa4 22.Nf7 Rhc8=) 21.ef6+= Bf6? (21...c4 22.Qc2 Bd6+-) 22.Rb8+- (22.Rb8 Rb8 23.Nh7+-) 1–0. Franck,Boris (1995) – Pieroni,Guillaume (2105), Calvi France, Youth Championship, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.0-0 Ng6 10.h4 h5 11.Re1 (11.Bg5 Nc7+=) 11...Ne7 (11...Be7 12.g3=) 12.Nbd2 (12.Bg5 c4+=) 12...Nf5= 13.Nf1 (13.dc5 bc5 14.Qe2 Qa4=) 13...Be7 14.g3 cd4 15.Nd4 Nd4 16.cd4 g6 (16...Nc7 17.Be3=) 17.Be3 Kf8 (17...Nc7 18.Qd2=) 18.Qd2 Kg7 19.Bg5 Rac8 20.Rac1 Nb8 21.Qf4 Nc6 22.Rc3 Bg5 23.hg5 Rc7 24.g4 (24.Rec1 Rhc8+=) 24...hg4 25.Rec1 Rhc8 26.Ne3 Ne7 27.Qf6 Kf8 28.Rc7 Rc7 29.Qh8 Ng8 30.Rf1 Qd8 31.Qh4 Ke7 32.Ng4 Kd7 33.Nf6 (33.b5 Qe7=) 33...Nf6=+ 34.gf6 Kc8 35.Qh6 Rc4 36.Rc1 Qc7 37.Rc4 dc4 (37...Qc4?? 38.Qf8 Kb7 39.Qf7 Ka6 40.Qe6 Qc1 41.Kg2 Qg5 42.Kf3 Qh5 43.Qg4+-) 38.Qd2 (better 38.b5!?=+) 38...c3-+ 39.Qc2 Qc4 40.d5 ed5 41.e6 Qg4 42.Kf1 Qe6 (42...Qh3 43.Kg1 Qe6 44.Qc3 Kd7 45.Qb3-+) 43.Qc3 Kd7 44.b5 Qd6 45.Qh3 Kc7 46.Qc3 Kd7 (46...Qc5!? 47.Qe5 Kd7 48.Kg2-+) 47.Qh3-/+ Qe6 48.Qc3 Qd6 (48...Kd8 49.Qg3 Kc8 50.Qc3 Kb7 51.a4-+) 49.Qh3-/+ Kc7 50.Qc3 Qc5 51.Qe5 Kd7 52.a4 (52.Kg2 Qd6 (52...Qb5 53.Qe7 Kc6 54.Qe8 Kc5 55.Qf7+-) 53.Qd4 Ke6-+) 52...Qc4 53.Kg1 Qg4 54.Kf1 Qc4 (54...Qe4!? 55.Qb8 Qa4 56.Qb7 Ke6 57.Qe7 Kf5 58.Qd7 Ke5 59.Qf7 Qb5 60.Kg2-+) 55.Kg1 Qg4 56.Kf1 Qc4 ½–½. Blimke,D (2220) – Szymanska,M (2090), TCh–Poland Lubniewice Poland, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.Nbd2 cd4 10.cd4 h5 (10...Nc7 11.0-0=) 11.h4 (11.Ra2 Nc7+=) 11...Nf5 12.Nf1 Be7 13.Ne3 Nc7 (13...Ne3 14.Be3 Nc7 15.0-0=) 14.Nf5+= ef5 15.Qd3 g6 (15...a5 16.ba5 Ra5 17.0-0=) 16.Bg5 Ne6 17.Be7 Ke7 18.0-0 Rac8 19.Rfc1 Rc1 20.Rc1 Rc8 21.Qd2 Rc1 22.Qc1 Qc7 23.Qc7 (23.Qd2 b5+=) 23...Nc7= 24.a4 b5 25.ab5 Nb5 26.Kf1 Nc3 27.Ne1 Kd7 28.Nd3 Kc6 29.Nf4 Kb5 30.e6? (better 30.Nh3 Kb4 31.Ng5-/+) 30...fe6-+ 31.Ne6 (31.Ng6 Kb4 32.Nf4 a5-+) 31...Kb4 32.Nf4 (32.Ke1 a5-+) 32...a5 33.Ke1 a4 34.Kd2 Kb3 35.Ne6 Kb2 36.Nc5 Ne4 37.Ke3 a3 38.Nd3 Kc3 39.Nc1 f4! 40.Kf4 Nf2 41.Na2 (41.Ke3 Kc2 42.Na2-+) 41...Kb2 42.Nb4 Kb3 (42...Kb3 43.Nc6 a2-+) 0–1. Chulivska,Vita (2255) – Seletsky,G (2280), Tch–UKR Alushta UKR, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.h4 Rc8 10.0-0 (10.dc5 bc5 11.h5 h6=) 10...cd4 11.cd4 Nb8 12.Bb2 (12.h5 Nf5=) 12...h5 (12...Nf5 13.h5=) 13.Qd3 Nf5 14.Nbd2 Be7 15.g3 Qa4 16.Rfc1 Kd7 (16...0-0 17.b5=) 17.Nf1 Rc1 18.Rc1 (worse 18.Bc1 Bb4 19.Ne3 Ne3 20.Be3 Nc6=+) 18...Rc8 19.Rc8 Kc8 20.Ne3 Ne3 21.fe3 (21.Qe3 Qc2 22.Bc1 Nd7=) 21...g6 (21...a5 22.ba5 ba5 23.Ne1=) 22.Ne1 (22.Kg2 a5 23.ba5 Qa5=) 22...Kd7 (22...a5 23.ba5 Qa5 24.Ng2=) 23.Kf2 (23.e4 Qc6 24.Qf3 Ke8 25.ed5 Qd5 26.Qd5 ed5+=) 23...Nc6 24.Ke2 Bf8 25.Qc2 Qc2 26.Nc2 a6 27.Bc3 Ne7 28.a4 Nf5 29.Kf3 Kc6 30.Be1 Bg7 31.e4 de4 32.Ke4 b5 33.a5 Bf8 (33...f6 34.Bf2=) 34.Ne3 (34.Na1!?=) 34...Ne3=+ 35.Ke3 Kd5 36.Kd3 Bh6 37.Bc3 Bg7 38.Bd2 f6 39.ef6 Bf6 Attacks the isolani on d4 40.Be3 Bg7 41.Bf2 Bf8 42.Be1 Bd6 43.Ke3? (better 43.Bd2-+) 43...Kc4 44.Ke4 Bb4 45.Bf2 Bd6 (45...Ba5 46.Be3-+) 0–1. Toma,Alin (2200) – Manole,Vasile (2345), ROM–ch sf Baile Tusnad, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

9.0-0 Nc7

10.Qd3 c4= 11.Qc2 a5 12.Ra2 (12.Qb2 b5=+) 12...ab4 (12...b5 13.ba5 Ra5 14.Ng5=+) 13.ab4 Ra2 14.Qa2 Nc6 15.Ng5 Be7 16.Qc2 h6 17.Nh3 0-0 18.Re1 f6 (18...Ra8 19.Qe2=+) 19.Bh6 fe5 (19...gh6?? 20.Qg6 Kh8 21.Qh6 Kg8 22.Re3 Bb4 23.Rg3 (23.cb4?! Kf7 24.Ng5 Ke8+-) 23...Kf7 24.Rg7 (worse 24.cb4 Ke8 25.Rg7 Qc8+-) 24...Ke8 25.Rd7 (worse 25.cb4 Ne5 26.de5 Qa4+-) 25...Kd7 26.cb4+-) 20.de5 Rf5 (20...Bb4 21.Be3 (worse 21.cb4 gh6 22.Qd2 Qg7-/+) 21...Bc5 22.Bc5 bc5 23.Nd2=) 21.Bf4 ½–½. Gajewski,Grzegorz (2455) – Meier,Georg (2300), Aviles, ESP, Open San Agustin, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

10.Be3 Nf5 11.dc5!? Ne3 12.fe3 bc5 13.e4=.

10.Be3 Nf5 11.g4 Ne3 12.fe3 Be7 13.Ra2 0-0 14.Rg2 (14.Nbd2 Rfd8=+) 14...cd4 (14...a5 15.bc5 bc5 16.Qd3-/+) 15.ed4=+ a5 16.Rg3 ab4 17.cb4 g6 (17...Rfc8 18.g5=+) 18.Qd2 (18.g5 Nb5 19.Qd3 Ra4=) 18...f5 19.Ng5 (19.g5!?=) 19...fg4=+ 20.Rf8 Rf8 21.Rg4 Bg5 22.Qg5 Qf7 23.Qf6 Qf6 24.ef6 Rf6 25.Nd2 (25.Nc3 Kf7-/+) 25...Kf7 (25...Rf8 26.h4-+) 26.a4-/+ Ke7 (26...b5 27.Rh4 h5 28.ab5 Nb5 29.Kg2-+) 27.a5 ba5 (27...b5 28.Rh4 h5 29.Rh3-+) 28.ba5 Kd6 29.Rg2 (better 29.Kg2-/+) 29...Rf3?? (better 29...Rf4 30.Nb3 Nb5-/+) 30.Re2 (better 30.Nf3 Kd7 31.Rc2+-) 30...Rd3-+ 31.Kf2 Rd4 0–1. Kraev,A (2330) – Iljushin,A (2525), 4th Stage Russian Cup, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6)

10.Be3 Nf5 11.g4 Ne3=+ 12.fe3 Be7 13.Nbd2 0-0 14.Rf2 (14.e4 Nb5 15.Qb3 cd4 16.cd4 de4 17.Ne4 Nd4-/+) 14...f5 (14...a6 15.Qc2=+) 15.ef6 gf6 (15...Bf6 16.g5 Be7 17.e4=+) 16.Nf1 (16.e4 cd4 17.Nd4 a5=) 16...Nb5 (16...Bd6 17.Qd3=+) 17.Qd3 (17.Qb3 cd4 18.cd4 Rac8=+) 17...cb4 18.cb4 a5 19.ba5 Ra5 20.Rb2 Na3 (20...Ra3 21.Ra3 Na3 22.Rb6=+) 21.Rb6= Nc4 (21...Bd8 22.Rb8 Nc4 23.Ra5 Ba5 24.Rf8 Kf8 25.N3d2 Nd2 26.Nd2=) 22.Ra5 Nb6 23.N1d2 (23.Ra6 Nc4=) 23...e5 24.Qf5 (24.h3 Qc7 25.e4 ed4 26.Qd4 Qg3 27.Kf1 Qh3 28.Kf2 Bd8=) 24...Qf5=+ 25.gf5 e4 26.Rb5 Nc4 (26...Rb8 27.Ne1 Bd6 28.Nc2=) 27.Nc4 (27.Rd5 Ne3 28.Rd7 ef3 29.Re7 Nf5=) 27...dc4 28.Ne1 Ra8 29.Rb2 (29.Rb7 Kf8=+) 29...c3 30.Rc2 Bb4 31.Kf1 (31.Ng2 Ra1 32.Kf2 Ra5=+) 31...Ra1 (31...Ra5 32.Rf2-/+) 32.Ke2 (32.h4 Kf7-/+) 32...Kf7 (32...Ra5 33.Ng2-/+) 33.h3 (33.Ng2 Ra5-/+) 33...Ke7 (33...Ra5 34.Rc1-/+) 34.Ng2 Kd6 35.Nf4 Rh1 36.Nh5 Kd5?? (better 36...Rh2 37.Kd1 Rh3 38.Nf6 Re3 39.Nh7 Kd5 40.Nf6 Kd4-+) 37.Nf6= Kc4 38.Ne4 Kb3 39.Rc3 Bc3 40.Nc5 (better 40.f6!? Rh2 41.Nf2=+) 40...Kc4-/+ 41.f6 Rh2 (41...Rh3?! 42.f7 Re3 43.Ke3 Bd4 44.Kf3 Bc5 45.f8Q Bf8 46.Kf2=) 42.Kf1 Rh3 43.Kg2 (43.Ke2!? Rh2 44.Kf3-+) 43...Rh6 (better 43...Rh5 44.Nd7 Bb4-+) 44.f7=+ ½–½. Salmensuu,Olli (2455) – Tuominen,Risto (2185), Turku We op, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6)

10.Bf4 Ng6= 11.Be3 Be7 (11...cb4 12.cb4 Be7 13.Nc3=) 12.Nbd2 (12.dc5 bc5 13.Nbd2 d4 14.cd4 cb4 15.ab4 Bb4=) 12...cd4= 13.cd4 (13.Bd4 0-0=) 13...0-0 (13...a5 14.Qb3=) 14.Nb3 (14.Qb3 a5=) 14...Rfc8 15.Qd2 (15.Bg5 Bg5 16.Ng5 Nb5=) 15...Nb5 (15...Qa4 16.Qb2=) 16.Rfc1 (16.Qb2 Rc4=) 16...Rc1 (16...Rc4 17.Qb2=) 17.Nc1 (17.Qc1 Rc8 18.Qb2 a6=) 17...a5=+ 18.Nb3 ab4 19.ab4 Ra1 20.Na1 Qa7 (20...Na3 21.Bg5-/+) 21.Nc2 (21.Qb2 Na3=+) 21...Qa2 (21...Qa4 22.Nfe1=+) 22.g3 (22.Qd3 Qc4 23.Qc4 dc4=) 22...Qc4 (22...Qb3 23.Nfe1-/+) 23.Nfe1=+ Bf8 24.Bg5 Ne7 25.Be7 Be7 26.Qd3 f6 (26...Na7 27.Qc4 dc4 28.Nf3-/+) 27.Kf1 (27.h3 Nc3=+) 27...Nc3 (27...fe5 28.de5 Nc3 29.Nd4=) 28.f3 (28.ef6 Bf6 29.Qc4 dc4=+) 28...Na2 The pressure on the isolated pawn grows (28...b5 29.ef6 gf6 30.f4=+) 29.ef6 (29.Qc4 dc4 30.b5 Nc3=+) 29...gf6 30.b5 (30.Qc4!? dc4 31.b5=+) 30...Qd3-/+ 31.Nd3 Nc3 32.f4 Nb5 (32...Kf7 33.f5-/+) 33.f5 Nc7 34.fe6 Ne6 35.Ncb4 (35.Nf4 Nf4 36.gf4 Bd6-/+) 35...Nd4 (35...Bb4 36.Nb4 Nc7 37.Ke2-/+) 36.Nd5=+ Bd8 37.g4 (37.Kf2 Kf7=+) 37...Kf7 (37...f5 38.gf5 Nf5 39.Ne5-/+) 38.Kf2 Ne6 (38...b5 39.Ke3 Ne6 40.Ke4=+) 39.h4 (39.Kf3 b5=+) 39...b5-/+ 40.Ke3 (40.h5 Be7-/+) 40...Nc7 41.Kd4 Nd5 42.Kd5 Be7 (42...f5 43.Ne5 Kg7 44.gf5 Bh4 45.Nf3-+) 43.h5 Bf8 (43...Kg7 44.Nf2-/+) 44.Kc6 (44.Nc1 Kg7 45.Ne2 Kh6-/+) 44...b4 45.Kd5 Kg7 46.Ke6 (46.Kc4 Kh6 47.Nf2 f5 48.gf5 Kh5-+) 46...b3-+ 47.Kf5 (47.Nb2 Bb4-+) 47...Be7 (better 47...Ba3-+) 48.Ke6? (better 48.Nb2-+) 48...Ba3 49.Kf5 h6 50.Ke6 b2 51.Nb2 Bb2 52.Ke7 Ba3 53.Ke6 Bb4 (53...Bf8 54.Kd5-+) 54.Kd5 (54.Kf5 Kf7-+) 54...Kf7 55.Ke4 Ke6 0–1. Rusan,Paul_Cristian – Bonte,Andrei_Mihai, 9th Arad Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7 6.a3 Ba6 7.Ba6 Na6 8.d4 Ne7)

6.bc5 bc5

7.d4 Ba6 8.Ba6 Na6 9.0-0 c4 10.Ng5 Ne7 11.Ba3 h6 12.Nh3 Nc7 13.g4 (13.Qf3 Nb5=) 13...h5 (13...a6 14.Nd2=+) 14.gh5 (14.g5 Rb8=+) 14...Nf5 15.Bf8 Kf8 16.a4 g6 (16...Rb8 17.Nd2=+) 17.Nf4 Qe7 18.Ng2 (18.Qg4 gh5 19.Qf3 Rb8=+) 18...Rh5=+ 19.Nd2 Nh4 (19...Ke8 20.Rb1=+) 20.Nf3 Nf3 21.Qf3 Kg7 22.Rfb1 Rah8 23.h4 Ne8 (23...Na6 24.Rb2=+) 24.a5 Rf5 25.Qg3 Kh7 (25...a6!?=) 26.a6+- Ng7 (26...Nc7!?+-) 27.Ne3 Nh5? (better 27...Rh5 28.Rb7 Qh4 29.Qh4 Rh4 30.Ra7 g5+-) 28.Nf5+- gf5 29.Rb7 Qf8 (29...Qb7 30.ab7 Ng3 31.fg3+-) 30.Qf3 Rg8 31.Kf1 Rg4 32.Ra7 Qg7 (32...Nf4 33.Qh1 Kg7 34.h5+-) 33.Ke2 Qg6 (33...Nf4 34.Kd2 Ng2 35.Rb7 Nh4 36.Qd1 Qg5 37.Kc2+-) 34.Rf7! Qf7 35.a7 Nf4 36.Ke3 Ng2 Black prepares the advance f4 37.Qg2?? (37.Kd2 Nh4 38.Qh1=) 37...Rg2 38.a8Q f4 39.Kf3?? (better 39.Kd2 Qf5 40.Ra7 Rg7 41.Rg7 Kg7 42.Qa3=) 39...Rg7-+ 40.Ke2 f3 (better 40...Qg6 41.Qa7 Qd3 42.Ke1-+) 41.Kd2 Qf4 42.Kc2 Qe4 (42...Qh4 43.Rd1 Qf2 44.Rd2-+) 43.Kb2 Qe2 44.Ka3 Qc2 45.Kb4 (45.Qb8 Qc3 46.Ka2 Qd4 47.Rh1 Ra7 48.Qa7 Qa7 49.Kb2 Qf2 50.Ka3 Qe3 51.Ka4-+) 45...Rc7 (better 45...Qb2 46.Kc5 Rc7 47.Qc6 Rc6 48.Kc6 Qa1-+) 46.Qa2 (46.Ra7 Qb3 47.Ka5 Qc3 48.Kb6 Ra7 49.Qa7 Kg6 50.h5 Kh6=) 46...Qf5 (better 46...Rb7!? 47.Kc5 Qc3=+) 47.Qa8= Qf7 48.Ra5 (48.Ra6 Qd7 49.Rb6 Qe7 50.Kb5 Qd7 51.Kb4 Qe7 52.Kb5 Qd7 53.Kb4=) 48...Rb7 (48...Qe7 49.Ka4=+) 49.Ka3= Qc7 50.Qa6 (50.Ra6 Rb8 51.Qa7 Qa7 52.Ra7 Kg6=+) 50...Qb8=+ 51.Ka4 Qe8 (51...Rb2!? 52.Qa7 Qa7 53.Ra7 Kg6-/+) 52.Rb5= Rb5 (52...Rc7!?=) 53.Qb5+= Qf7 (53...Qe7 54.Qc6+=) 54.Kb4 (54.Qb1 Kg7 55.Qb8 Qe7+-) 54...Kg6 (54...Qe7!? 55.Qc5 Qh4 56.Qc7 Kg6=) 55.Qb8+- Kf5 56.Kc5 Ke4?? (better 56...Qe7 57.Qd6 Qh4 58.Qf8 Ke4=) 57.Qb1+- Kf4 58.Qc1 (58.Qc1 Kf5 59.Qg5 Ke4 60.Qe3 Kf5 61.Qf3 Kg6 62.Qf7 Kf7 63.Kd6+-) 1–0. Kieffer,C (2180) – Nguyen Chi Minh (2370), Open A Bethune FRA, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.d4 Ba6 8.Ba6 Na6 9.Ba3 Nh6 10.0-0 Be7 11.Nbd2 0-0 12.dc5 Bc5 13.Bc5 Nc5 14.c4 Rfd8 15.Nb3 (15.Qe2!?=) 15...dc4-/+ 16.Qd7 (16.Nc5 Qe7 17.Qe2 Qc5-/+) 16...Nd7 17.Na5 Rdc8 18.Rfd1 Nb6 19.Rac1 Nf5 (19...c3 20.Nb7-/+) 20.Nd2 (20.Nb7 Rab8 21.Nd6 Nd6 22.ed6 Nd5-/+) 20...c3-+ 21.Ne4 Nd5 22.g3 Rc7 23.Rd3 Rac8 24.Kf1 h5 25.Ke2 Kf8 26.Kd1 (better 26.a3-+) 26...c2 27.Kd2 (27.Ke2 Nb4 28.Ra3 Rd8-+) 27...Nb4 28.Rc3 Rd7 29.Ke2 (29.Ke1 Nd3 30.Kd2 Nc1 31.Kc1 Rc3 32.Nc3-+) 29...Rcd8 (better 29...Nd4 30.Kf1 Rc3 31.Nc3 Rc7-+) 30.a3 (30.a4 Rd4 31.f3 Rd3-+) 30...Na2 (better 30...Nd4!? 31.Kf1 Nb5 32.R3c2 Nc2 33.Rc2 Na3 34.Rb2-+) 31.R1c2 Nc3 32.Rc3 Rd4 33.f3 R4d5 34.Nc6 Rc8 35.Kf2 Nd4 36.Nd4 Rc3 37.Ne6 (37.Nc3 Rd4 38.Ke3 Rd8-+) 37...fe6 38.Nc3 Re5 39.a4 Rc5 40.Nb5 (40.Ne2 Kf7-+) 40...a6 41.Nd4 Kf7 42.Ke3 Rc4 43.a5 Rc5 0–1. Cernousek,L (2260) – Bunzmann,D (2505), WJun Athens GRE, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Qd7)

7.d4 Nc6 8.Be2 Rb8 9.Ba3 Be7 10.0-0 f6 11.c4 (11.Bc1!?=) 11...cd4=+ 12.Be7 Nge7 13.ef6 gf6 14.Nd4 dc4 15.Nc6 Qc6 16.Bf3 Qc7 17.Nd2 0-0 18.Rc1 Exerts pressure on the isolated pawn 18...Rd8 19.Qe1 Rd4 20.Be2 Increasing the pressure on the isolated pawn on c4 20...e5 21.Nb3 Re4 22.Nd2 Rd4 23.Rc4 Rc4 24.Bc4 Kg7 25.Qe3 Bf5 26.f4 (26.Rc1 Rb2+=) 26...Qb6 27.Qb6 Rb6 28.fe5 fe5 29.Bb3 Rb4 30.Rc1 ½-½. walterheinz (2215) - marekt (2230), gameknot.com, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

7.d4 cd4 8.cd4 Ba6 9.Ba6 Bb4 10.Nfd2 (10.Bd2 Na6 11.Qe2 Bd2 12.Nbd2 Qa4+=) 10...Na6= 11.0-0 Ne7 12.Nb3 Ng6 13.g3 (13.Qe2!? Nc7 14.Ba3=) 13...Rb8=+ 14.h4 Qa4 15.Qg4 h5 16.Qf3 Ne7 17.Bg5 Nf5 18.Rc1 g6 19.Nc3 Bc3 20.Rc3 0-0 (20...Nd4?? 21.Nd4 f5 22.Ne6+-) 21.g4 (21.Rd1 Rfc8 (worse 21...Qa2 22.Ra1 Nd4 23.Ra2 Nf3 24.Rf3+/-) 22.Rc8 Rc8=+) 21...hg4=+ 22.Qg4 Rfc8 23.Rc8 Rc8 24.h5 Rc3 25.Rf1 (25.Qd1!?=) 25...Qa2=+ 26.Nc1 Qc2 27.hg6 fg6 28.Ne2 Rb3 29.Be3 Ng7 30.Nf4 Qf5 31.Qf5 (31.Qg6!? Qg6 32.Ng6=) 31...gf5=+ (worse 31...Nf5 32.Ne6 Rb6 33.Nf4=) 32.Rc1 Rb7 33.Kg2 Kf7 34.Bd2 Nc7 35.Bb4 Nge8 (worse 35...Rb4 36.Rc7 Kf8 37.Rc8 Ke7 38.Rc7 Kf8 39.Rc8 Ke7 40.Rc7 Kf8=) 36.Bc5 Na6 37.Ba3 Rb3 38.Ra1 Nac7 39.Bc5 a6 40.f3 Rb2 41.Kg3 Kg8 42.Rc1 Kf7 43.Rg1 (43.Ra1!?=) 43...Ng7=+ 44.Rh1 Kg8 45.Rh6 a5 (45...Rc2 46.Bd6=) 46.Rf6 Nge8 47.Rf8 Kg7 48.Ne6 Ne6 49.Re8 Nc5 50.dc5 Kf7 51.Rd8 Ke6 52.f4 a4 53.Rd6 Ke7 54.Rd5 Rc2 55.Rd4 a3 56.Ra4 a2 57.c6! Ke6 (57...Rc6 58.Ra7 Double attack (58.Ra2 Deflection)) 58.Ra6 Ke7 59.Kh4 Rg2 60.Ra7 Kd8 61.e6 1-0. dereksmalls (2445) - marekt (2230), gameknot.com, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

5.c3 Bd7

6.a3 c4 7.d4 (7.d3!? cd3 8.Bd3+=) 7...a5= 8.ba5 Ra5 9.Ng5 h6 10.Qh5 g6 11.Qh3 Bg7 (11...Ba4 12.Nf3=) 12.Nf3 Ba4 13.Be2 Ne7 14.0-0 Qd7 15.Ne1 Nbc6 16.g4 (16.Nd2 b5=) 16...Ra7 17.f4 Bb3 (17...b5 18.Nf3=+) 18.Ng2 Bc2 (18...f5 19.Nd2=+) 19.Ne3= Bd3 (19...Ba4 20.Nd2=+) 20.Bd3 cd3 21.Ra2 (21.Ng2 0-0=) 21...h5 22.Qg3 (22.g5 Na5=) 22...hg4=+ 23.Ng4 Na5 24.f5? (better 24.Qd3!? Nf5 25.Nd2=) 24...gf5-/+ 25.Nf6 Bf6 26.ef6 Ng6?? (better 26...Rg8 27.Bg5 Nec6-/+) 27.Qb8+- Qd8 28.Qa7 Nc4 29.Rg2 Qf6 (29...Nd6+-) 30.Bg5 Qg7 (30...Qg5 31.Rg5 Rh6 32.Qb8 Ke7 33.Rg3+-) 31.Qb8 (31.Qa4 b5 32.Qb5 Kf8 33.Qb8) 31...Kd7+- 32.Qb7 Kd6 33.Be7! (33.Be7 Ne7 34.Rg7+-) 1–0. Koop,Thilo – Grinfeld,Alla B (2245), Wichern op Hamburg, 1993. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Nc6 7.d4 Qc7 8.Bd3 f6 9.0-0 c4 10.Bc2 0-0-0 11.a4 Nge7 12.Na3 Ng6 13.Nb5 (13.a5 ba5 14.b5 Nb8+-) 13...Qb8+= 14.Bg6 (14.Re1!?+=) 14...hg6= 15.Bf4 a6 16.Bg3 ab5 17.ab5 Ne5 (17...Na7 18.ef6 Qb7+-) 18.de5+- f5 19.Nd4 g5 (19...Qb7!?+-) 20.Ra6 (better 20.Nf5 ef5 21.Qd5+-) 20...Bb5?? (20...Kc7 21.Qa4 Rc8+-) 21.Nb5 f4 22.Qa4 Qe5 (22...Rd7 23.Ra8 Rb7 24.Rb8 Rb8+-) 23.Na7 (23.Na7 Kb7 24.Qc6 Kb8 25.Qb6 Ka8 26.Nc6) 1–0. Koop,Thilo – Schwarz,Frank, Germany op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.a3 Nc6 7.d4 Nge7 8.Bd3 Ng6 9.h4 cd4 10.cd4 Qc7 (10...Nge7 11.h5+=) 11.Ra2 Rc8 12.Rc2 Qb8 13.h5 Nge7 14.Nc3 f6 15.Bf4 Nd4 (better 15...fe5!? 16.Be5 Ne5 17.Ne5 Nc6 18.Nd7 Kd7+-) 16.Nd4+- fe5 17.Bg3 Ng8 (17...Nc6 18.Nc6 Bc6 19.Qg4+-) 18.Ba6 Rd8 19.Ncb5 Nf6 20.Nc7 Kf7 21.Be5 Ba4 22.Qe2 (22.Nde6?! Rd7 23.h6 Re7 24.hg7 Bg7 25.Bf6 Bc2 26.Qc2 Qc7 27.Qc7 Rc7 28.Nc7 Bf6 29.Nd5 Bb2+-) 22...Bc2 (22...Nd7 23.Rc3 Re8 24.b5 Ne5 25.Qe5+-) 23.Nc6 (23.Nc2?! Bd6 24.Bf6 Qc7 25.Bd8 Rd8+-; 23.Qc2?! Bd6 24.Bd6 Rd6+-) 23...Qc7 (23...Bf5 24.Nb8 Rb8+-) 24.Bc7 Rd7 (24...Re8 25.Qc2 Be7 26.Ne5 Kf8 27.Bb5+-) 25.Ne5 (25.Ne5 Ke8 26.Qc2+-) 1–0. Dannevig,Oystein (2360) – Schmidt,Horst Hubert (1875), Politiken Cup, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.a3 Ne7 7.Be2 Ng6 8.0-0 Be7 9.d4 0-0 (9...cd4 10.cd4 0-0 11.Bd3+=) 10.g3 (10.Be3 cd4 11.cd4 f6+=) 10...Nc6 11.h4 f5 (11...a6 12.h5 Nh8 13.h6=) 12.h5 Nh8 13.c4 (13.h6 g5= (worse 13...cb4 14.hg7 Kg7 15.ab4+=)) 13...Nd4 (13...cb4!? 14.cd5 ed5=+) 14.Nd4+= cd4 15.cd5 ed5 16.Qd4 Be6 17.Nc3 Nf7 18.Rd1 Qc7 19.Bf4 Rfd8 (19...Rad8 20.Bf3 Ng5 21.Bg5 Bg5 22.Bd5+-) 20.Nb5 (20.Bf3 Ng5 21.Bg5 Bg5 22.Bd5 Qf7+-) 20...Qc2 (20...Qb7 21.Rac1 Rac8 22.Rc8 Rc8 23.Qd2+-) 21.Qe3 Qe4? (better 21...Qc8+-) 22.Nc7+- 1–0. pierred – justforfun, net–chess.com, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.a3 f6 7.d4 Nc6 8.Bd3 fe5 9.Ne5 Ne5 10.de5 Ne7 11.Bg5 Qc7 12.Qh5 g6 13.Qe2 Nc6 14.Bf6 Rg8 15.0-0 Bg7 16.Bg7 Rg7 17.Re1 Kf8 (17...c4 18.Bc2+=) 18.Nd2 Kg8 19.Nf3 Qd8 (19...c4 20.Bc2+=) 20.Qe3 (20.b5 Ne7 21.c4 a6+=) 20...Qe7 (20...c4 21.Bc2+=) 21.h4 (21.Red1 c4 22.Bc2 Rf8+=) 21...Nd8 22.g3 (22.Qg5 Qf8+=) 22...Rc8 23.Rac1 Kh8 (23...c4 24.Bc2=) 24.Kg2 Nf7 25.Ng5 (25.bc5 bc5 26.Rb1 Bc6=) 25...Ng5 (25...Rf8 26.f4=) 26.hg5 Qf7 (26...Rf7 27.f3=) 27.f4 (27.bc5 Rc5 28.c4 Bc6 29.cd5 Bd5 30.Kh2 Rc1 31.Rc1 Qb7=) 27...Bc6= 28.Kf2 Bb7 (28...c4 29.Bc2=) 29.Bb1 (29.Red1 Qe7=) 29...Rgg8 ½–½. Novak,K (2100) – Soos,Patricia, 2nd Summer Open, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.b5 a6 7.Na3 ab5 8.Nb5 c4 9.Nbd4 Ba4 10.Qe2 Nc6 (10...Nd7 11.d3 cd3 12.Qd3=+) 11.Nc6 Bc6 12.Nd4 (12.d3 cd3 13.Qd3 Ne7=) 12...Qc7 13.g3 (13.Nc6 Qc6 14.d3 cd3 15.Qd3 f6=) 13...Bc5=+ 14.Qh5 (14.Nc6 Qc6 15.Qg4 d4=+) 14...Bd4 15.cd4 Ne7 16.Bh3 (16.Bg2 0-0=+) 16...0-0=+ 17.Bb2 b5 18.a3 Ra4 (18...Qa5 19.Bg2=+) 19.0-0 Rfa8 (19...Qd7 20.Bg4=+) 20.Bg4 b4 (20...Qd7 21.Bd1 R4a7 22.Bc2=+) 21.ab4= Rb4 (21...Qb7 22.Ra4 Ba4 23.Bc3=) 22.Ra8 Ba8 23.Ba3 Rb6 24.Bc5 Rb5? (24...Ra6 25.Rb1 Ng6 26.f4+=) 25.Bd6 (better 25.Be6!? Ng6 26.Bf5+-) 25...Qd7 (25...Qd8 26.Rd1=) 26.Ra1 Bc6 27.Bc5 Rb8 (27...Nc8 28.Bf3=) 28.Bd1 Ra8 (28...Ng6 29.Qf3=) 29.Rb1 (29.Ra8 Ba8 30.Bc2 Nf5=) 29...Ng6 30.Bc2 Ba4 31.Ra1 Qe8 32.Bb1 (32.Bg6 hg6 33.Qg5 Bc2=) 32...Bb3 (32...Qb8 33.Qf3 Qb5=) 33.Ba3 (33.Ra8!? Qa8 34.Bg6 hg6 35.Qg5=) 33...Ra4 (33...Ra7 34.Bb2 Ra1 35.Ba1-/+) 34.Bb2 (34.Qg5 Qa8 35.Bg6 hg6=+ (35...Ra3?? 36.Ra3 Qf8 37.Bf7 Kf7 38.Ra7 Kg8 39.Qg4+-)) 34...Ra1-/+ 35.Ba1 Qa4 36.Bc3 Bd1 37.Qh3 Be2 38.f4 (38.f3 Bf3 39.Qf1 Bg4-/+) 38...Qd1-+ 39.Kf2 Qb1 40.Ke2 Qd3 41.Ke1 (41.Kf2 Nf4 42.Qg4 Ng6-+) 41...Nf4! 42.Qf1 (42.gf4 Qf5 Double attack (42...Qh3 Pinning; 42...Qh3 Deflection; 42...Qf5 Decoy)) 42...Qb1 (42...Qe4 43.Kf2 Nd3 44.Kg1-+) 43.Kf2 Nd3 44.Kg2 Qf1 45.Kf1 Kf8 (45...f6 46.h3-+) 46.Ba5 Ke7 (46...f6 47.Bc7-+) 47.Bc7 f6 48.Bd6 Kf7 (48...Kd7 49.Ke2-+) 49.Ke2 Kg6 (49...h5 50.h3-+) 50.g4 (50.Kf3 h5 51.h3 Kf5 52.g4 hg4 53.hg4 Kg5-+) 50...f5 (50...h5 51.gh5 Kh5 52.Bf8-+) 51.Kf3 h5 52.h3 fg4 53.hg4 Ne1 54.Ke2 Nc2 55.gh5 Kh5 56.Bf8 (56.Bc5 g5 57.Kf2 Kg4-+) 56...Nd4 57.Ke3 Nc2 (57...Nf5 58.Kf3-+) 58.Ke2 g6 (58...g5 59.Bc5-+) 59.Bc5 0–1. Schlupp,Olivier (2140) – Simon,Leopold (2120), Nationale II, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.b5 a6 7.c4 ab5 8.cb5 c4 9.Nc3 Bb4 10.Rb1 Bc3 11.dc3 Ra2 12.g3 (12.Qd4 Ne7=+) 12...Ra5 13.Nd4 h6 (13...Ne7!?-/+) 14.Qg4=+ g6 15.Bg2 Ne7 16.0-0 Nc8 17.Re1 Na7 b5 becomes the focus of attention 18.Bd5 Nb5 (18...ed5 19.e6 Kf8+-) 19.Bc4= Nc3 20.Rb3 Nd5 21.Ba3 Nc6 (better 21...h5!? 22.Qf3 Nc6=) 22.Nb5+- Qg5? (better 22...Rb5 23.Bb5 Na5 24.Bd7 Qd7+-) 23.Nd6+- (23.Nd6 Ke7 24.Qf3+-) 1–0. marekt – pdchessvamp, ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.bc5 bc5 7.Na3 Nc6=.

6.bc5 bc5 7.d4 Nc6 8.Nbd2 f6 (8...Rb8 9.Be2+=) 9.Nh4 (9.Bd3 c4 10.Bc2 Qa5=) 9...Qe7 (9...Nh6 10.ef6 cd4 11.cd4 Qf6 12.Ndf3-+) 10.Bd3 (10.Nhf3 cd4 11.cd4 fe5 12.de5 Nh6=) 10...Qf7 (10...cd4!? 11.cd4 fe5 12.Qh5 Qf7-/+) 11.Ndf3 (11.Nhf3!?=) 11...cd4+= 12.cd4 Bb4 13.Kf1 Qh5 (13...g5 14.Bg5 fg5 15.Ng5+=) 14.Qa4 (14.Rb1 fe5 15.de5 Be7+=) 14...Nge7 (14...Bc3!? 15.Rb1 Nd4+=) 15.Rb1= Bc3 (15...a5 16.Bb5 Rc8 17.a3=) 16.Rb7 Rd8 17.Ba3 Nd4 (17...fe5? 18.Be7 Ne7 19.Bb5 Bb5 20.Qb5 Kf8 21.Qc5+-) 18.Rd7 Rd7 19.Nd4?? (better is 19.Be7 Ke7 20.ef6 Kd8 21.g4 (21.Nd4? Bd4 22.fg7 Bg7-+) 21...Qg4 22.Qd7 Kd7 23.Ne5 Kd6 24.Ng4+/-) 19...Qh4-+ 20.Bb5 Qd4 21.Bd7-/+ Kf7 22.Qd4 Bd4 23.ef6 gf6 24.Ke2 Rd8 25.Ba4 Rc8 26.Rb1 Bc5 27.Bc1 Bb6 28.Bb2 Nc6 29.Rd1 Na5 30.f4?? Rc4-+ 31.Bb5 Rb4 (31...Rb4 32.Bc3 Rb5-+) 0–1. Flaata,Alexander – Lahlum,Hans Olav (2220), Troll Masters, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.bc5 bc5 7.d4 Nc6 8.Bd3 Qa5=.

6.bc5 bc5 7.d4 Nc6 8.Bd3 h6 9.0-0 Qa5 (9...c4 10.Bc2=) 10.Be3 (10.Qc2 c4 11.Be2 Nge7=) 10...Rb8 (10...c4 11.Bc2=+) 11.Qc2 (11.a4 c4 12.Bc2 Nge7=+) 11...c4=+ 12.Be2 Nge7 13.Nbd2 Ng6 (13...Nf5 14.Rab1=+) 14.Rab1 (14.Rfb1 Be7=) 14...Rb1 (14...Be7 15.Rb8 Nb8 16.Rb1=) 15.Rb1 Ba3 (15...Be7 16.g3=) 16.h4+= Kd8? (16...0-0!?+=) 17.g3 (17.h5 Nf8+-) 17...Kc7+- 18.Bd1 (18.h5 Nge7 19.Nh4 Nc8+=) 18...Nd8 (18...Nge7 19.h5+=) 19.Ra1 (19.h5 Ne7+-) 19...Ne7 (better 19...Nc6+=) 20.Nb1?? (20.Nb3 Qa4 21.Qd2+-) 20...Nc8?? (better 20...Ba4! 21.Qa4 Qa4 22.Ba4 Bb2-+) 21.Na3+- Qa3 22.Bc1 Qa6 23.Rb1 (23.a4 Nc6+-) 23...Nb6 24.Qd2 (24.Qb2 Nb7+-) 24...Nc6 (24...Qa5 25.Kg2+-) 25.Ne1 (25.a4 Qa5+-) 25...Rb8 ½–½. Roebuck,Derek (1645) – Madden,Steve (1820), 30th Hampstead: Under Section, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

6.bc5 Bc5 7.d4 Be7 8.Bd3+/-.

6.d4 cb4=+ 7.Bd3 bc3 8.Nc3 Bb4 9.Bd2 Ne7 10.0-0 Nbc6 (10...Ng6 11.Bg5 Be7 12.Be7 Qe7 13.Nb5 Bb5 14.Bb5 Kd8 15.Qc2+=) 11.Nb5 a6 12.Bb4 ab5 13.Bd2 h6 14.Qe2 0-0 15.g4 (15.Bb5 Nf5 16.Bc3 Qe7+=) 15...Ra4= 16.Be3 Ng6 17.Bb5 Rb4 18.Bc6 (18.Rfb1 Qe7 19.a4 Nh4 20.Nh4 Rb1 21.Rb1 Qh4+=) 18...Bc6= 19.Qd2 Rc4 20.g5 hg5 21.Bg5 (worse 21.Ng5 Ne5 22.Qe2 Nd7-/+) 21...f6 22.ef6 gf6 23.Bh6 Re8 24.Kh1 Kf7 25.Rg1 Rg8 26.h4 (26.Qd3!? Ba4 27.Rac1=) 26...e5=+ 27.h5 (better 27.Qe3!?=+) 27...Nh4!-+ 28.Qe2 (28.Nh4 Rd4 Double attack (28...Rd4 Decoy)) 28...Nf3 29.Qf3 Rd4 30.Rg6?? (better 30.Rg3-+) 30...Rh4 (30...Rg6?! 31.hg6 Ke7 32.Qa3 Ke6 33.f4-+) 31.Kg1 Rh5!! (31...Rg6?! 32.hg6 Kg6 33.Qg3 Kh5 34.f3-+) 32.Qh5 Rg6 33.Kh2 (33.Kf1 Qh8 34.Rb1 Qh6 35.Qh6 Rh6 36.Rb6 Bd7-+) 33…Qh8 0-1. Calvi,Stefan (1980) - Tscharotschkin,M (2195), 11th Rheinland-Pfalz Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.a3 Qc7

7.d4 a5 8.b5 (8.bc5 bc5 9.Nbd2 Nc6+=) 8...a4= 9.c4 cd4 10.Qd4 (10.cd5 ed5 11.Be2 Bc5=) 10...Bb5=+ 11.Nbd2 (11.cb5 Qc1 Pinning (11...Qc1 Deflection)) 11...Nc6 12.Qc3 (12.Qb2 Ba6=+) 12...Na5 13.Qb2 Bc4 14.Nc4 dc4 (14...Nc4 15.Qb5 Kd8 16.Bg5 Be7 17.Be7 Ne7 18.Bc4 dc4 19.Rc1-/+) 15.Qb5 Qc6 (15...Qd7!? 16.Bc4 Nc4 17.Qc4 Rc8-/+) 16.Bc4= Bc5 17.Be3 (17.Qc6 Nc6 18.Bb5 Nge7=+) 17...Ne7=+ 18.Bc5 Nc4 19.Qc4 Qc5 20.Qc5 bc5 21.0-0 (21.Rc1 Ra5=+) 21...0-0 22.Rfc1 Ra5 23.Rab1 Rd8 24.Rb7 Nf5 (24...Ng6 25.h4-/+) 25.g4 Nd4 (25...Nh6 26.h3=+) 26.Nd4= cd4 27.Rd7 Raa8 28.Rcc7 Rd7 (28...d3 29.Ra7=) 29.Rd7+= h6 30.Rd4 Ra5 31.f4 g5 32.fg5 hg5 33.Kf2 Kg7 34.Kf3 Re5 35.Ra4 Re1 36.Ra7 Rh1 37.Kg3 Rg1 38.Kf3 Rh1 39.Kg3 Rg1 40.Kf3 Ra1 41.Kg3 (41.a4!?=) 41...Kg6=+ 42.Ra6 Kf6 43.Ra5 Rg1 44.Kf3 Rb1 45.Ra8 (45.a4 Rb3 46.Kg2 Rb7=) 45...Rb3 46.Kg2 Ke5 47.Ra5 Kf4 48.Ra4 Ke5 49.Ra5 Kf6 50.Ra7 Kg6 51.Ra6 Rd3 52.Kf2 (52.a4 Kf6=) 52...Kf6=+ 53.Ra5 Rb3 54.Kg2 Rb6 55.Kg3 Kg6 56.a4 Rb3 57.Kg2 Rb4 58.h3 f5 59.Ra6 (better 59.gf5!? ef5 60.Ra6 Kf7 61.a5=) 59...fg4-/+ 60.Re6 (60.hg4 Rg4 61.Kf3 Rf4 62.Ke3 Kf5-/+) 60...Kf5 61.Re3 Kf4 62.Ra3 gh3 (62...Rb2 63.Kg1 gh3 64.Rh3-+) 63.Rh3 (63.Kh3 Rb2 64.Rg3 Ra2 65.Rg4 Kf5=+) 63...g4 (63...Rb2 64.Kg1 Ra2 65.Rd3-+) 64.Rc3 (better 64.Ra3=) 64...Ra4-+ 65.Rb3 ½–½. Mogilarov,Dimitar – Berg,Emanuel (2215), EU–ch U16 Rimavska Sobota, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.d4 a5 8.bc5+= bc5 9.Bd3 Nc6 10.0-0 f5 (10...Rb8 11.Be3=) 11.a4 cd4 12.cd4 Nb4 13.Na3 (13.Be2!?+=) 13...Qc3= 14.Nb5 Qd3?? (14...Qa1 15.Nc7 Kf7 16.Na8 Qa4-/+ (worse 16...Ba4 17.Ng5 Ke7 18.Qh5+=; worse 16...Nd3 17.Qd3 Be7 18.Nb6 Ba4 19.Bg5+-)) 15.Nc7+- Kd8 16.Qd3 (16.Na8?! Qa6=) 16...Nd3 17.Na8 h6 18.Ba3 Bb4 (18...Ba3 19.Ra3 Nb4 20.Rc1+-) 19.Rfd1 (19.Rfb1 Bc6 20.Rb3 Ba3 21.Rb8 Kd7 22.Ra3 Nf4+-) 19...Ba3 20.Ra3 (20.Rd3?! Bb4 21.Rc1 Ba4+=) 20...Nb4 21.Rb1 (better 21.Rc1!? Bc6 22.Rc5 Ba8 23.Ra5+-) 21...Bc6= 22.Rc3 Ba8 23.Nd2 Ne7 24.Nb3 Nec6 25.Na5 Na5 26.Rb4 Kd7 27.f4 Nc4 (27...Nc6 28.Rb6=) 28.Rg3 Rg8 29.Rg6 (29.Kf2 Ke7=) 29...Ke7 30.Kf2 (better 30.h4!?=) 30...Kf7-/+ 31.Rg3 Bc6 32.Rc3 Ra8 33.Rc1 Ra4 34.Ra4 Ba4 35.h4 Ke7 36.Ra1 Bd7 37.Ra8 Nb2 38.Kf3 Nd3 39.Ke3 Nb2 40.Kf3 Nd3 41.Ke3 Nb4 42.Rb8? (better 42.g3-/+) 42...Nc2-+ 43.Kd3? (43.Kd2 Nd4 44.h5-+) 43...Ne1 44.Ke3 Ng2 45.Kf3 Nh4 46.Kg3 Ng6 47.Ra8 Nf8 48.Ra1 Be8 (48...Bb5 49.Ra7 Nd7 50.Kh4-+) 49.Ra7 Nd7 50.Kh4 Kf8 51.Ra8 Kf7 (51...Nb6 52.Ra6 Nc4 53.Re6-+) 52.Ra7 Ke7 53.Ra8 Nb6 54.Rb8 Nc4 55.Rb7 Bd7 56.Kh5 Ne3 57.Kg6 Ng2 58.Kg7 h5 59.Kh6 Nf4 60.Rb2 Nd3 (60...Be8 61.Kg5 Ng6 62.Rb7 Kd8 63.Rb2-+) 61.Rd2 Ne1 62.Kh5 (62.Rd1 Nf3 63.Rd3 Ng1-+) 62...Be8 (better 62...Nf3!? 63.Rb2 Nd4 64.Kg5-+) 63.Kh6 f4 64.Rd1 Ng2 (64...f3!? 65.Re1 Bb5 66.Ra1-+) 65.Rf1 Bb5 66.Rf2 Ne3 67.Rf4 Nf5 68.Kh5 (68.Kg5 Bd3-+) 68...Bd3 69.Rf2 Ng3 (better 69...Nd4!? 70.Rd2 Ne2 71.Kg4-+) 70.Kg4 Ne2 71.Kh5 (better 71.Kf3 Nd4 72.Ke3-+) 71...Ng3?? (better 71...Kd7-+) 72.Kg4-/+ Nf5 73.Rd2 (73.Kh5 Nd4 74.Rd2-+) 73...Be4 74.Kg5 Ne3 75.Ra2 Bf5 76.Ra7 Kd8 77.Kf6? (better 77.Ra1-+) 77...Nc2 78.Ra4 Kd7 79.Kf7 (79.Kg5 Kc6-+) 79...Kc6 80.Ke7 Kb5 81.Ra2 Nd4 82.Kd6 Nb3 83.Rf2 Nc5 84.Rd2 (84.Rf5 ef5 85.Kd5-+) 84...Ne4 (84...Ne4 85.Ke7 Nd2 86.Kf8 Nf3 87.Kf7 d4 88.Ke8 d3 89.Kf7 d2 90.Kg7 d1Q 91.Kf6 Qd8 92.Kg7 Qe8 93.Kf6 Qf8) 0–1. Buczak,K (2165) – Blom,M (2015), XXIII Tadeusz Gniota Mem, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

7.d4 c4 8.a4+=.

7.d4 Nc6 8.Bd3 f6 9.Bf4 f5 (9...c4 10.Bc2 0-0-0+=) 10.g4 (10.0-0 a6+-) 10...Nge7 (10...fg4!? 11.Ng5 cd4 (worse 11...cb4 12.Qg4 Nce7 13.Ne6+-) 12.Bh7 Nge7 13.cd4 g6+-) 11.gf5+= Nf5 (11...ef5 12.Bg3 Qb7 13.Nbd2=) 12.Bf5 ef5 13.dc5 Be6 14.b5 Ne7 15.Nd4 Qc8 16.c6 Ng6 17.Bg5 (17.Qh5 Bc5 18.Rg1 0-0 19.Rg6 hg6 20.Qg6 Bd4 21.cd4 a6=) 17...Bc5 18.0-0 (18.h4 Ne5 19.Qe2 Bd4 20.cd4 Nc4+=) 18...f4 (18...a6 19.ba6 (worse 19.Ne6 Qe6 20.Nd2 ab5=+) 19...Ne5 20.c7=) 19.Nd2 (better 19.a4!?+=) 19...Bh3=+ 20.e6 Bd4 21.cd4 0-0 (better 21...Bf1!? 22.Kf1 0-0-/+) 22.Re1+= Be6 23.h4 f3 (23...a6 24.Qe2 Bf7 25.Qf3=) 24.Qb3+= (worse 24.Nf3 Bg4 25.Re3 h6-/+) 24...h6 (better 24...a6+=) 25.Nf3 (better 25.h5!? Nf4 26.Bf4 Rf4 27.Nf3+=) 25...hg5=+ 26.Ng5 Bf7 27.Nf7 (better 27.Qg3 Qf5 28.Rac1=+) 27...Qg4?? (better 27...Rf7 28.Qg3 Nf4-+) 28.Qg3+= Qg3 29.fg3 Rf7 30.Re6 Rf6 (30...Ne7 31.g4+=) 31.Rae1 (31.Rf6 gf6 32.Rc1 Ne7+=) 31...Kf7 (31...Re6!? 32.Re6 Kf7=) 32.R6e3+= a6 (better 32...Rf5!?+=) 33.h5+- Nf8 34.Re7 Kg8 35.c7 ab5? (better 35...Rc8 36.ba6 Rf3+-) 36.Re8+- Ra3 (36...Re8 37.Re8 Rc6 38.c8Q Rc8 39.Rc8+-) 37.c8Q Rg3 38.Kh2 Rg5 39.R8e5 Rf2 40.Kh3 Rf3 41.Kh4 Rg2 (41...Rgg3 42.Rd5 b4 43.Re8 Rh3 44.Qh3 Rh3 45.Kh3+-) 42.Rf5 (42.Rf5 Rf5 43.Qf5+-) 1–0. Van Opheusden,B (2155) – Van de Peut,A (2025), Dutch Open Dieren NED, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Bd7)

5.c3 Nd7

6.a3 c4 7.d4 (7.d3 Qc7 8.dc4 dc4+=) 7...Ne7 8.Be2 Nf5 9.Bg5 (9.a4 a5 10.b5 Be7=) 9...f6 (9...Be7 10.Be7 Qe7 11.Qa4=) 10.ef6 gf6 11.Bf4 Bd6 12.Bd6 Nd6 13.0-0 Nf8 (13...a5 14.a4=) 14.Nh4 (14.Re1 Ng6=) 14...f5 (14...Rg8 15.Re1=) 15.Bh5 Kd7 16.Nf3 Kc7 17.Qc1 (17.a4 Qf6+=) 17...Nd7 18.Ne5 (18.a4 Rg8 19.Qd1 Qf6=) 18...Ne5 (18...Qh4 19.Nd7 Bd7 20.Bf3=) 19.de5 Ne4 20.f3 Ng5 21.h4?? (better 21.Qe3=) 21...Nh3!-+ 22.gh3 Qh4 23.Ra2 (23.Kh2 Qh5 24.Qe3 Rg8-+) 23...Qh5 24.Qf4 (24.Kh2 Bb7-+) 24...Bb7 (24...Qh3? 25.Rh2 Qh2 26.Kh2+-) 25.Rg2 (25.a4 Rag8 (25...Qh3? 26.Rh2 Qh2 27.Kh2+-) 26.Kh2 Kb8-+) 25...Rag8 (25...Qh3? 26.Rh2 Qh2 27.Kh2+-) 26.a4 (26.h4 Bc6-+) 26...Rg2 (26...Qh3 27.Qh2 Qg2 28.Qg2-+) 27.Kg2 Rg8 28.Kf2 Qg6 (28...Qh3 29.Ke1-+) 29.Nd2 (29.Ke1 Qg3 30.Qg3 Rg3-+) 29...Qg2 30.Ke3 (30.Ke1 Qh3 31.Qd4 Bc6-+) 30...d4! 31.Qd4 (31.cd4 Qh3 Zwischenzug (31...c3 Passed pawn); 31.Kd4 Rd8 Double attack (31...Qh3 Zwischenzug); 31.Qd4 Qh3 Zwischenzug) 31...Rd8 32.Qc4 Kb8 33.Rf2 (33.Nb1 Qh3 34.Nd2 Qh2-+) 33...Qg3 (better 33...Qg5!? 34.f4 Qg3 35.Nf3 Bf3 36.Rf3 Qe1 37.Qe2 Qc1 38.Kf2-+) 34.Qe6 f4 35.Ke2 Rd2! 36.Kd2 Qf2 37.Kc1 Qg1 (37...Qe3 38.Kc2 Qe2 39.Kb3 Qd1 40.Ka3-+) 38.Kb2 Qg2 (38...Qd1 39.Qf6 Qd2 40.Kb1-+) 39.Kc1 Qg6 (39...Qf3?! 40.Qd6 Kc8 41.Qf8 Kd7 42.Qf7 Kd8 43.Qf8 Kc7 44.Qd6 Kc8 45.Qf8 Kd7 46.Qf7 Kd8 47.Qf8 Kd7=) 40.Qe7 (40.Qd7 Qg1 41.Kb2 Qf2 42.Ka3 a5 43.Qd6 Ka7 44.ba5 Qc5 (44...ba5?! 45.e6=+) 45.Qc5 bc5-+) 40...Qc6 (40...Qd3 41.Qf8 Bc8 42.Qd6 Qd6 43.ed6 Bh3 44.Kd2-+) 41.Kb2 (41.Qf8 Qc8 42.Qd6 Ka8-/+) 41...Bc8 (41...Qa4?! 42.Qd6 Kc8 43.Qf8 Kd7 44.Qd6 Kc8 45.Qf8 Kc7 46.Qd6 Kc8=; 41...Qf3?! 42.Qd6 Kc8 43.Qf8 Kd7 44.Qf7 Kd8 45.Qf8 Kc7 46.Qd6 Kc8 47.Qf8 Kd7 48.Qf7 Kd8 49.Qf8 Kd7=) 42.Qf8 (42.h4 Qf3 43.Qd6 Ka8-+) 42...Qf3 43.e6 (43.Qd6 Ka8 44.h4 a6-+) 43...Qe2 44.Kc1 (44.Ka3 Qe6 45.Qf4 Kb7-+) 44...Qe6 45.Qf4 Kb7 46.Qd4 (46.h4 Bd7 47.b5 a6 48.Qf3 Ka7-+) 46...Bd7 (46...Qh3 47.Qd5 Kc7 48.Qe5 Kd7 49.Kd2-+) 47.c4 (47.b5 Qh3 48.Qe4 Kc7 49.Qc4 Kd6 50.Qf4 Ke6 51.Qe4 Kf6 52.Qd4 Kg6-+) 47...Ba4 (47...Qe1 48.Qd1 Qc3 49.Qc2 Qa3 50.Qb2 Qh3 51.Qg7-+) 48.Qg7 (48.b5 Qh3 49.Qd5 Kc7 50.Qc6 Kd8 51.Qf6 Kd7 52.Qf7 Kd6 53.Qd5 Ke7 54.Qg5 Kf7 55.Qf4 Kg6 56.Qd6 Kg5 57.Qe7 Kg4 58.Qg7 Kf3 59.Qc3 Kg2 60.Qd2 Kg1 61.Qd4 Kh1 62.Qd5 Qg2 63.Qh5 Qh2 64.Qd5 Kg1 65.Qg8 Kf2 66.Qf8 Kg2 67.Qa8 Kf1 68.Qf3 Qf2 69.Qh1 Ke2 70.Qh7 Qe3 71.Kb2 Qb3 72.Ka1 Qc3 73.Kb1 Qd3 74.Qd3 Kd3-+) 48...Qd7 (48...Bd7 49.Qh7 Qc4 50.Kd1-+) 49.Qg2 (49.Qc3 a6 50.Kb2 Bc6-+) 49...Bc6 50.Qg5 (50.Qf1 a5 51.b5 Be4-+) 50...Qf7 (50...Qh3 51.Qg7 Qd7 52.Qe5-+) 51.Kb2 (51.Qh4 Bg2-+) 51...Qf2 (51...Qc4!? 52.Qg7 Ka6 53.Qc3-+) 52.Kc3 Qe1 (52...Qf3 53.Kd2 Qh3 54.b5 Qg2 55.Qg2 Bg2 56.Ke2-+) 53.Kb3 (53.Qd2 Qa1 54.Qb2 Qh1-+) 53...Qd1 54.Kc3 Qf3 (54...Qa1 55.Kd3 Qa3 56.Ke2 Qb4 57.Qg7 Ka6 58.Qh7 Qc4 59.Qd3 Bf3 60.Ke3 Qd3 61.Kd3-+) 55.Kd4 Qf7 (55...Qh3 56.b5 Qd7 57.Ke3-+) 56.h4 (56.Kc3 a6 57.h4 b5-+) 56...Qd7 (56...Qf2!? 57.Kc3 Qe1 58.Qd2 Qh4 59.b5 Qg3 60.Kb2 Qg7 61.Kb3-+) 57.Kc3 Be4 58.Qe3 (58.b5 Qd3 59.Kb4 a5 60.ba6 Ka6-+) 58...Qg7 (58...Qg4 59.h5-+) 59.Kb3 Qe5 (59...Qg2 60.Kc3 a5 61.ba5 ba5 62.Qg5 Qc2 63.Kd4 Qd3 64.Kc5-+) 60.Qh3 (60.Qg5 Qc7-+) 60...Qf5 (60...Qf5 61.Qf5 Bf5-+) 0–1. Klimentov,Roman (2240) – Popov,Kirill (2045), Voronezh RUS, City Ch, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nd7)

6.Ba3 f6 7.Qa4 Qc7 8.d4 c4 9.g3 Be7 (9...Rb8 10.ef6 Ngf6 11.Qd1=) 10.Bh3 (10.Bc1 Qb7=) 10...f5 (10...Kf7 11.ef6 Bf6= (worse 11...Ngf6 12.Ng5 Ke8 13.Ne6+-)) 11.g4+= g6 12.gf5 gf5 (12...ef5? 13.e6+-) 13.Rg1 Nh6 14.b5 Ba3 15.Na3 Nf8 16.Qd1 Qe7 17.Qc1 Nf7 18.Nc2 Ng6 19.a4 Bd7 20.Nb4 Nh4 21.Qf4 Nf3 22.Qf3 Qh4 23.Qg3 Qh6 24.f4 (24.Bg2 f4 25.Qh3 Qh3 26.Bh3 Ke7+=) 24...0-0-0 25.Ke2 (25.a5 Rhg8 26.Qg8 Rg8 27.Rg8 Nd8=) 25...Rhg8=+ 26.Qf3 Nh8 27.Ke3 (27.Rg8 Rg8 28.Nd5 Ng6=) 27...Ng6=+ 28.Rg3 (28.Bg2 Nh4 29.Qf2 Rg6=) 28...Rg7 (28...Nf4!? 29.Qf4 Rg3 30.hg3 Qh3-/+) 29.Rag1 (29.a5!? Bb5 30.ab6 ab6 31.Ra8 Kc7 32.Ra7 Kb8 33.Rg7 Qg7 34.Bg2=) 29...Rdg8-/+ 30.Qf2 Nf4! 31.Qf4 Rg3 32.Rg3 Rg3 33.hg3 Qh3 34.Qg5 Qh1 35.Qg8 Kb7 36.Nc6? (36.Qg7 Qe1 37.Kf3 Qf1 38.Ke3 f4 39.Kd2 Qf2 40.Kc1 Qe1 41.Kb2 Qd2 42.Nc2+=) 36...Qe1-+ 37.Kf3 Qf1 (37...Qc3?! 38.Kg2 Qd2 39.Kh3 Qh6 40.Kg2 Bc6 41.Qf7 Kb8 42.bc6 Qd2 43.Kh3 Qh6 44.Kg2 Qd2 45.Kh3 Qh6 46.Kg2=) ½–½. Saez,F (2195) – Bricard,E (2450), 1st Balagne Open, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nd7)

6.a3 a5

7.b5 c4 8.d4 cd3 9.Bd3 Qc7 10.Qe2 Nc5 11.Bc2 Bb7 12.0-0 Ne7 13.Nbd2 Ng6 14.a4 Nd7 Can e5 get defended? 15.c4 (15.Bg6!? hg6 16.Ba3=+) 15...Nde5-/+ 16.Ne5 Qe5 17.Qe5 Ne5 18.cd5 Bd5 (worse 18...ed5 19.Re1 f6 20.f4 Bc5 21.Kh1+=) 19.Bb2 Nc4?? (better 19...f6-/+) 20.Nc4+= Bc4 21.Rfd1 (better 21.Be4!? Rd8 22.Bc6 Ke7 23.Rfc1+-) 21...Bd5=+ 22.Bd4 (22.Rd5 ed5 23.Bd4 Rb8=+) 22...Bc5 (22...Rc8!? 23.Bd3 Bc5-/+) 23.Bc5=+ bc5 24.Rac1 (24.Bd3 Ke7=+) 24...c4 25.Bb1 Ke7 26.Ba2 Attacks the isolani on c4 26...Rac8 27.f3 Rhd8 28.Kf2 c3 29.Bb1 (29.Bd5!? Rd5 30.Rd5 ed5 31.Ke2-/+) 29...Bb3-+ 30.Rd8 Kd8 (30...Rd8?! 31.Rc3 Ba4 32.Bd3=+) 31.Bc2 Bc2 32.Rc2 Rc4 33.Ke3 Ra4 (33...Kc7 34.Kd3 Ra4 35.Rc3 Kb7 36.Rc6-+) 34.Rc3 Rb4 35.Rc5 (35.Rc6 Rb5 36.Ra6 Kc7-+) 35...a4 36.b6 Rb6 37.Ra5 Rb2 38.g4 (38.Ra4 Rg2 39.h4 Rh2-+) 38...Rh2 (38...Rb3!? 39.Ke4 Rb4 40.Kd3-+) 39.Ra4 Ke7 40.Kf4 (40.g5 e5-+) 40...Kf6 41.Ra6 Rb2 42.Kg3 Rb3 43.Ra5 g5 44.Ra7 (44.Ra8 Kg7-+) 44...Kg6 (44...e5!? 45.Ra4-+) 45.Re7 Kf6 46.Ra7 e5 47.Ra6 Kg7 48.Ra5 f6 49.Ra7? (49.Ra4-+) 49...Kg6 50.Re7 (50.Ra4 Rd3-+) 50...h5 51.gh5 Kh5 52.Rf7 (52.Re6 Kg6 53.Kf2-+) 52...Kg6 (better 52...e4 53.Kf2 Rf3 54.Ke2-+) 53.Re7 (53.Rf8 e4 54.Kg4 Rf3 55.Rg8 Kf7 56.Rc8-+) 53...Kf5 54.Kg2 (54.Rh7 e4 55.Kf2 Rf3 56.Ke2 Kf4-+) 54...Kf4 55.Rf7 f5 Black plans g4 56.Rc7 (56.Kf2-+) 56...Rf3 57.Rc4 e4 58.Rc2 g4 59.Rb2 g3 60.Ra2 Rf2! 61.Rf2 gf2 62.Kf2 e3 63.Ke2 (63.Kg2 Ke4 64.Kf1 f4 65.Kg1 f3 66.Kf1 Kd3 67.Kg1 Kd2 68.Kh2 e2 69.Kh3 e1Q 70.Kg4 Qe4 71.Kg3 Ke3 72.Kh3 Kf2 73.Kh2 Qh4) 63...Ke4 64.Ke1 (64.Kf1 f4 65.Ke2 f3 66.Kf1 Kd3 67.Kg1 Kd2 68.Kh1 e2 69.Kh2 e1Q 70.Kh3 f2 71.Kg3 f1Q 72.Kg4 Qe4 73.Kg5 Qf7 74.Kh6 Qfg6) 64...Kd3 65.Kd1 (65.Kf1 e2 66.Kf2 Kd2 67.Kf3 e1Q 68.Kf4 Qe7 69.Kf5 Ke3 70.Kg4 Qe6 71.Kg5 Kf3 72.Kh5 Kf4 73.Kh4 Qg4) 65...e2 66.Ke1 f4 67.Kf2 Kd2 68.Kf3 e1Q 69.Kf4 Qe3 (69...Qe6 70.Kf3 Qf5 71.Kg2 Qe4 72.Kh3 Ke3 73.Kg3 Qg6 74.Kh4 Kf4 75.Kh3 Qg3) 70.Kf5-+ Qd4 71.Ke6 Qc5 72.Kf6 (72.Kd7 Qd5 73.Kc7 Ke3 74.Kc8 Kd4 75.Kc7 Kc5 76.Kb8 Qd7 77.Ka8 Kc6 78.Kb8 Qb7) 72...Qd5 (72...Ke2 73.Kf7 Qd5 74.Ke7 Ke3 75.Kf6 Kf4 76.Kg7 Kf5 77.Kf8 Qb7 78.Ke8 Ke6 79.Kd8 Qd7) 73.Ke7 Qc6 74.Kf7 Qd6 75.Kg7 Black now must not overlook the idea Ke3 75...Qe6 76.Kf8 (76.Kh7 Qf5 77.Kg7 Ke3 78.Kh6 Kf4 79.Kg7 Kg5 80.Kg8 Kg6 81.Kh8 Qc8) 76...Qd7 77.Kg8 Qe7 (77...Ke3 78.Kf8 Ke4 79.Kg8 Ke5 80.Kf8 Kf6 81.Kg8 Qg7) 78.Kh8 Ke3 79.Kg8 Kf4 80.Kh8 Kg5 81.Kg8 Kg6 82.Kh8 Qf8 (82...Qd8) 0–1. Xu,Xianliang (1890) – Yang,Darwin (2180), –Wycc U12, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.b5 c4 8.d4 cd3 9.Bd3 Qc7 10.Qe2 g6 11.Be3 Bg7 Pawn e5, live or die! 12.Bd4 Ne7 13.Nbd2 Nf5 14.h4 Bb7 15.h5 Nc5 16.Bc2 Ne4 Exerts pressure on the backward pawn 17.Rc1 (17.Be4 Nd4 18.cd4 de4 19.Ne4 Be4 20.Qe4 Qc3 21.Ke2 Qb2 22.Nd2 Qb5 23.Qd3 Qd5+=) 17...Bh6 (17...Neg3!? 18.fg3 Ng3=) 18.hg6= (18.Be4? de4 19.Qd1 ef3-+) 18...fg6 19.g4 (19.Be4? de4 20.Bb6 Qb6-+) 19...Nd4 20.cd4 Bd2 (20...Bf4 21.Qd3 Rc8=+) 21.Nd2+- Qc3 22.Qd3 Qd2 23.Qd2 Nd2 24.Kd2 0-0 25.Rh2 Rf7 26.Rch1 Rg7 27.Bd3 Rf8 28.Ke3 Rc8 29.f4 Rc3 30.a4 h5 (better 30...Ra3!?+=) 31.Rg1 hg4 32.Rg4 Kf7 33.Rh6 Ra3 34.Rh8 Rg8 (34...Ra4?? 35.Rb8 Ba8 36.Ra8+-) 35.Rg8 Kg8 36.Rg6 Kf7 37.Rh6 Bc8 38.Rh8 Bd7 39.Rb8 Ra4 40.Rb6 Rb4 41.Rb7 Ke8 42.Ra7 a4 43.Ra8 Ke7 44.Ra7 Kd8 (44...Ke8 45.Ra6+-) 45.Kd2 (45.Ra6!?+-) 45...Kc8 46.Kc2 Kd8 47.Ra6 (47.Kc3 Rb3 48.Kd2 Rb2 49.Bc2 Bb5+-) 47...Kc7 (47...Rd4 48.f5 ef5 49.e6+=) 48.f5 ef5 49.e6 (49.Ra7!? Kd8 50.Kc3 Rb3 51.Kd2=) 49...Bb5=+ 50.Ra7 (50.Bb5 Rb5 51.Ra4 Kd6-/+) 50...Kd6-/+ 51.e7 Bd3 (51...Bd7 52.Kc3 Rb3 53.Kd2 f4-+ (53...Ke7 54.Bf5 Kd6 55.Rd7 Kc6 56.Ra7+-)) 52.Kd3= Rb8 53.Ke3 Re8 54.Kf4 Re7 55.Ra4 Re4 56.Kf5 Kc6 57.Rb4 Rh4 58.Ke5 Rh5 59.Ke6 Rh6 ½–½. Tomczak,Mikolaj – Zhao,Juncheng, Al–Ain UAE, World Ch Boys U14, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nd7)

7.b5 f6 8.d4 fe5 9.de5 Qc7 10.Bf4 Ne7 11.Bd3 c4 12.Bc2 Nc5 13.0-0 Bd7 14.Nd4 0-0-0 15.h3 (15.Nd2!?+=) 15...h6 16.Bh2 g5 17.Qe2 Bg7 18.Nd2 Rdf8 19.f4 gf4 20.Rf4 Rf4 21.Bf4 Rf8 22.Bg3 Qd8 23.Qg4 Rf7 24.Rf1 Qf8 25.Qe2 Rf1 26.Nf1 Be8 27.Qg4 h5 28.Qe2 (28.Qg5 Bh6 29.Qf6 Qf6 30.ef6 Ng8-/+) 28...Ng6 29.Qh5 Ne5 30.Qe2 Qf6 (30...Qh8 31.Bf2-/+) 31.Ne3 (31.Be5 Qe5 32.Qe5 Be5=+) 31...Qg5 (31...a4 32.Qf1=+) 32.Kh2 (32.Nef5 Bh5 33.Qe1 ef5 34.Be5 f4 35.Bg7 Qg7 36.Bf5 Kb7+/-) 32...Bh5-/+ 33.Qd2 Bh6 (33...Qf6 34.Ne6 Ne6 35.Qd5=+) 34.Ne6= Ne6 35.Qd5 Nf3 (35...Qe3 36.Qe6 Nd7 37.Qd5+-) 36.gf3 Qe3 37.Qc4 (37.Qh5 Qd2 38.Kh1 Qc1 39.Kg2 Qc2 40.Kf1 Qd3 41.Kg1 Be3 42.Bf2 Qb1 43.Kh2 Bf2 44.Qe8 Nd8-+) 37...Kd8 38.Qd5 Kc8 39.Qc6 (39.Qh5 Qd2 40.Kh1 Qc1 41.Kg2 Qc2 42.Kf1 Qd3 43.Kg1 Be3 44.Bf2 Qd1 45.Kh2 Bf2-+) 39...Kd8 40.Bh4 Bg5 41.Bg5 Ng5 Increasing the pressure on the isolated pawn on f3 42.Qf6 Kc7 43.Qg7?? (43.Qc6 Kd8 44.Qf6 Kd7 45.Bf5 Ne6 46.Be6 Qe6 47.Qg7 Qe7 48.Qd4 Kc7 49.Qc4 Qc5 50.Qc5 bc5 51.Kg3-/+) 43...Bf7-+ 44.Be4 Qf2 45.Kh1 Qf1 46.Kh2 Qf2 ½-½. Krizek,Krystof (1905) - Travnicek,Krystof Mikulas (1970), 44th Vsetin Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

7.b5 f6 8.d4+= fe5 9.de5 Ne7 10.Bd3=.

7.b5 f6 8.d4+= fe5 9.de5 Nh6 10.Bh6+= gh6 11.Bd3 (11.c4 Bb7 12.Qe2 Bg7=) 11...Bg7 (11...Qc7 12.0-0=) 12.0-0+= 0-0 (12...Ne5? 13.Ne5 0-0 14.Re1+-) 13.Re1 Qc7 Black prepares c4. Increases the pressure on e5 (13...c4 14.Bc2+=) 14.Qe2 Bb7 (14...c4 15.Bc2=) 15.Nbd2 c4 16.Bc2 Rf7 17.Qe3 Re8 18.Re2 Bc8 (18...Qc5 19.Qc5 Nc5 20.Rd1+=) 19.Rae1 Ref8 20.a4 Qc5 21.Qd4 Rf4 22.Qe3 R4f7 23.Qd4 (23.Qc5 Nc5 24.Nd4 Bd7+=) 23...Qa3 (23...Rf4 24.Qc5 Nc5 25.Rd1+=) 24.Nb1+= Qe7 (24...Qa1 25.Kh1+=) 25.Nbd2 (25.Qg4 Kh8 26.Re3 Rg8+=) 25...Rf4 (25...Qa3 26.h3+=) 26.Qe3+= Qf7 27.Nf1 (27.Kh1 Bb7+=) 27...Rf3= 28.Qf3 Qf3 29.gf3 Rf3 30.Ne3 (30.Re3 Ne5 31.Nd2 Re3 32.Re3 Ng4=+) 30...Ne5=+ (worse 30...Be5 31.Kg2 Rf7 32.Nd1+-) 31.Nd5 (31.Kg2 Rf4 32.Kg3 Rf7 33.Nd5 ed5 34.Re5 Be5 35.Re5 Rg7 36.Kf4 Rg2+=) 31...ed5-/+ 32.Re5 Be5 33.Re5 Rc3 34.Rd5 Bh3 (34...Rc2?! 35.Rd8 Kf7 36.Rc8 Rc1 37.Kg2=) 35.Rd2 Ra3 (35...Kf7 36.f4-/+) 36.f4 Kg7 37.Kf2 Ra2 (37...c3!? 38.Rd6 Ra2-/+) 38.Ke3=+ c3 39.Re2 (39.Rf2 Bg4=+) 39...Bf1 (39...Be6 40.f5 Bc4 41.Rf2=+) 40.Rf2 Bc4 41.h3 Kf6 42.h4 White intends f5 42...Be6 (42...Rb2 43.h5-/+) 43.f5 Bd5 44.Re2 Bc4 45.Rf2 h5 46.Kf3 Rb2 47.Ke3 Bb3 48.Bb3 Rb3 49.Kd3 (49.Rf4 Rb2 50.Rc4 c2-+) 49...Rb4 50.Kc3 Ra4 51.Rd2 Rh4 52.Rd6 Kf5 53.Rb6 Rb4 54.Kd3 (54.Rb7 h6-+) 54...Kg4 (54...h4 55.Ke3-+) 55.Ke2 (55.Rb7 h6 56.b6 h4 57.Rg7 Kh5-+) 55...h4 56.Rb7 h5 (56...h3 57.Kf2 Rb2 58.Kg1 h2 59.Kh1-+) 57.Kf2 (57.Rg7 Kf4 58.Rf7 Ke4 59.Re7 Kd4-+) 57...h3 58.Kg1 Rb1 59.Kh2 Rb2 60.Kh1 h2 61.Re7 (61.Rc7 Rb5 62.Rc4 Kg3 63.Rc3 Kf2-+) 61...Rb5 (61...Rb1 62.Kh2 Rb2 63.Kg1 Rb5 64.Re4 Kf3 65.Ra4-+) 62.Kh2 (62.Re4 Kg3 63.Re3 Kf4-+) 62...Kf3 (62...Rb2 63.Kg1-+) 63.Kg1 (63.Ra7 Ke4-+) 63...a4 64.Ra7 (64.Rf7 Ke4-+) 64...Rb4 65.Ra5 (65.Kh2 Rh4 66.Kg1 Rd4-+) 65...h4 66.Ra7 (66.Ra8 Kg3 67.Rg8 Rg4-+) 66...Ke3 67.Kf1 Kd3 68.Ke1 (68.Kg2 Kc2-+) 68...Kc3 69.Kd1 (69.Rc7 Kb3 70.Kd2 a3 71.Rc3 Ka4-+) 69...Kb2 70.Rd7 (70.Rc7 a3 71.Rc2 Kb3-+) 70...a3 0–1. Rusan,Paul_Cristian (2325) – Vysochin,Spartak (2580), Championship A, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

7.bc5 bc5 8.a4 (8.Bb5 Ba6 9.Ba6 Ra6=) 8...Qc7 9.Bb5 Ne7 10.0-0 Nc6 Now all is on e5 11.Qe2 Be7 12.Ba3 0-0 13.d4 f6 14.ef6 Nf6 (14...Rf6 15.c4 dc4 16.Rc1=) 15.Nbd2+= Na7 16.Ba6 Bd7 17.Ng5 Exerts pressure on the backward pawn (17.Rab1 Bd6+= (17...Ba4? 18.Rb7 Qd8 19.Ng5+-)) 17...Bd6 (17...Rfe8 18.Rfe1+= (worse 18.Ne6 Qc6-/+)) 18.Ndf3 (18.Bc5 Bh2 19.Kh1 Rfe8+=) 18...Rae8 (18...Rfe8 19.Ne5+=) 19.dc5 (19.Rfb1 Bc8 20.Bc8 Nc8 21.Ne6 Qc6+-) 19...Bc5= 20.Bc5 Qc5 21.Ne5 Nc6 22.Bd3 Ne5 (22...Qc3? 23.Nd7 Nd4 24.Qe3 Nd7 25.Rac1+-) 23.Qe5 h6 24.Nf3 Ng4 25.Qd4 Qd4 26.cd4 e5 27.Bb5 Bb5 28.ab5 e4 29.Nd2 Ra8 30.h3 (30.b6 Rfb8 31.Rfb1 Ra6=) 30...Nf6 31.Rfc1 Rfb8 32.Rc5 a4 33.Nb1 Rc8 34.Nc3 Attacks the isolani on a4 34...Rc5 35.dc5 a3 (35...d4 36.Ra4 Rc8 37.Rd4 Rc5 38.b6 Rc3 39.b7+-) 36.b6 Nd7? (better 36...Rb8+-) 37.b7 (37.Nd5?! Nc5 38.Ra2 Kf7=) 37...Ra6 38.Nd5 Nb8 39.c6! (39.c6 Rc6 40.Ne7 Kf7 41.Nc6 Nc6 42.Ra3+-) 1–0. Zakarian,D (2360) – Thomas,Ni (2285), 4NCL, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

5.c3 Ne7

6.a3 Nbc6 7.d4 Nf5 8.g4 Nh4= 9.Nbd2 h6 (9...a6 10.Rb1=) 10.Rb1 Nf3 11.Nf3 c4 12.h4 (12.Bg2 a6=) 12...Bd7 (12...Be7 13.Bg2=) 13.Be2 (13.g5 hg5 14.Bg5 f6 15.ef6 gf6=) 13...Qc7 (13...Be7 14.g5=) 14.Bf4 (14.g5 hg5 15.Bg5 a6=) 14...Ne7 (14...Be7 15.Rg1=) 15.Qc2 (15.Be3 a5=) 15...a6 (15...a5 16.h5=) 16.Bd1 (16.h5 a5=) 16...0-0-0 (16...h5 17.g5=) 17.Bg3 (17.h5 Rg8=) 17...Kb7 (17...Kb8 18.a4=) 18.Qe2 (18.h5 Bb5=) 18...Be8 (18...h5 19.Ng5 Be8 20.Bc2=) 19.Bc2 (19.h5 Kb8+=) 19...Nc8 (19...Kb8 20.h5+=) 20.Nd2 (20.h5 Be7+=) 20...Be7 (20...Kb8 21.h5+=) 21.f4 Bd7 22.Qf3 White prepares the advance f5 22...Rdg8 (22...h5 23.g5=) 23.Ke2 (23.h5 Na7+=) 23...Ka7 (23...Kb8 24.h5=) 24.Rbf1 (24.h5 Kb8+=) 24...Be8 (24...f5 25.Kd1=) 25.Qe3 (25.f5 Bd7+=) 25...Bc6 26.f5 Bd7 27.g5 White intends f6 (27.Kd1 h5+=) 27...hg5 (27...Kb8 28.gh6 gh6 29.f6+=) 28.hg5+= Qd8? (better 28...Kb8+=) 29.f6+- gf6 30.ef6 (better 30.gf6!? Bf8 31.Bh7+-) 30...Bd6+= 31.Be5 Rh1 32.Rh1 Rh8 (32...Qe8 33.Qf4 Be5 34.Qe5+-) 33.Rh6 White prepares g6 33...Qg8 (33...Rh6 34.gh6 Qh8 35.h7+-) 34.g6+- fg6?? (better 34...Be8+-) 35.f7+- (35.f7 Qf7 36.Rh8+-; 35.Rg6?! Qd8+-; 35.Bg6?! Be5 36.Rh8 Qh8 37.Qe5 Kb7+-) 1–0. Calavalle,Giulio (2200) – Rizzardi,Franco (2000), Senigallia ITA, Open Aug, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Ng6 7.h4 Qc7 8.d4 cd4 9.cd4 Ne7 10.Bd3 Bb7 11.0-0 Nd7 12.Bd2 a6 13.Ng5 h6 14.Nh7 g6 (14...Nf5 15.Nf8 Nf8 16.Qg4+=) 15.Nf8+- Nf8 16.h5 (16.Nc3 Nf5 17.Rc1 Qd8 18.Bf5 ef5+=) 16...b5 (16...Nf5 17.hg6 fg6 18.Be3+=) 17.Qf3 (17.a4 Qb6+-) 17...Nd7 (17...Nf5 18.Rc1 Qd7 19.Bc3+-) 18.Nc3 g5 (18...Qb6 19.hg6 Ng6 20.Ne2+-) 19.Qg4 (19.Bb5!? Nf5 20.Bd7 Qd7+-) 19...Qb6 20.Rae1 0-0-0? (better 20...Rf8!?+-) 21.a4+- Bc6 22.Ra1 ba4 (22...Nf5 23.ab5 (23.Bf5?! ef5 24.Qf5 Qd4 25.ab5 ab5+-) 23...ab5 24.Ne2+-) 23.Na4 Ba4 24.Ra4 Nb8 25.Rfa1 (better 25.Rb1 f5 26.ef6 Ng8+-) 25...Kb7? (25...Kd7+-) 26.b5! ab5 27.Rb4 (27.Ba5 ba4 28.Bb6 Kb6+-) 27...Kc8 28.Rb5 Qc7 29.Ba5 Qa7 30.Rc1 (30.Rbb1!? Rd7 31.Bb4 Qc7 32.Be7 Re7+-) 30...Nbc6 31.Bd8 Kd8 32.Rbc5 Kd7 (32...Qb7 33.Qd1+-) 33.Bb5 Rc8 34.Qf3 Qb6 (34...Ke8+-) 35.Qf7 (35.Qf7 Qb5 36.Rb5+-) 1–0. Goreskul,Alyona (2125) – Szymanska,Maria, Frydek–Mistek op (Women), 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.b5 a6!?=.

6.b5 d4 7.cd4+= cd4 8.Bb2 Bb7 9.Nd4 Nd7 10.Nf3 Nc5 (10...Rc8 11.d4+=) 11.d4+- Ne4 12.Bd3 Ng6 13.Nc3 (13.0-0!?+-) 13...Ng5= 14.Bg6 Nf3 15.gf3 hg6 16.Ne4 Qh4 17.Qd3 Qf4 18.Ke2 Be7 19.Rac1 Rh4 (19...Kd8 20.Rcg1=) 20.Rc7 Be4 21.Qe4 Qe4 22.fe4 Bd8 23.Rc6 a6 24.ba6 Ra6 25.a3 Ra5 (25...Re4 26.Kf3 Rh4 27.Kg3+=) 26.Rhc1 (26.f3!?+-) 26...Rb5 27.Bc3 Re4 28.Kf3 Rh4 29.Rc8 (29.a4!? Rb3 30.Kg2=) 29...Rb3=+ 30.Kg2 (30.a4 Ra3=+) 30...Ra3-/+ 31.Bb4 Ra7 32.Bf8 Kd7 (32...Kf8?! 33.Rd8 Ke7 34.Rcc8=) 33.R8c4 b5 34.Rb4 Rb7 (34...Be7 35.Be7 Ke7=+) 35.Bg7? (better 35.Rcb1!?=) 35...Be7-/+ 36.Rb3 Rd4 37.Rf3 Ke8 38.Rh3 (38.Rc8 Rd8 39.Rd8 Bd8-+) 38...Rg4 39.Kf1 Rh4 40.Rd3 (40.Rh4 Bh4 41.Rc3 b4-+) 40...Rc4 (40...Rb8 41.h3-+) 41.Ra1 Rbc7 42.Ra8 Rc8 43.Ra7 R4c7 44.Ra5 Rb7 45.Ra2 Rd7 (better 45...b4!?-+) 46.Rh3=+ Bf8?? (better 46...Rd1 47.Ke2 Rd4-/+) 47.Rh8+- Ke7 48.Bf6?? (better 48.Rf8 Rcd8 49.Rh8 Rd1 50.Ke2 Rh8 51.Bh8+-) 48...Ke8= 49.Ra3 (49.Bg7 Ke7 50.Rf8+-) 49...Rdc7+- 50.Rd3 b4 (50...Rc3 51.Rc3 Rc3 52.Bg7+-) 51.Bg7 Ke7 (51...f5 52.Rf8 (worse 52.Bf8 Kf7 53.Kg2 f4+-) 52...Ke7 53.Rf6+-) 52.Rf8 b3 (52...g5 53.Rc8 Rc8 54.Bf6 Ke8 55.Bg5+-) 53.Rc8 (better 53.Rh8!? f5 54.ef6 Kf7 55.Rc8 Rc8 56.Rd7 Kg8+-) 53...Rc8 54.Rb3 Rc7 55.Rd3 Rc1 56.Kg2 Rc8 57.Bf6 Ke8 58.Kg3 Ra8 59.Kg4 Ra4 60.Kg5 Ra8 61.Kh6 Rc8 (61...Kf8 62.Rc3 Rb8 63.h4+-) 62.h4 (better 62.Kg7 Ra8+-) 62...g5 (62...Kf8+-) 63.hg5 Rc7 (63...Kf8 64.Rd7 Ke8 65.Re7 Kf8+-) 64.Rd8 1–0. Hoiberg,Nina (2180) – Nielsen,J (2245), Aarhus–D, 1986. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 c4 7.a4 a6 (7...a5 8.b5=) 8.h4 (8.Be2 a5+=) 8...h5 (8...Nec6!?=) 9.Bg5+= Qc7 10.Be2 Nd7 11.Nh2 g6 12.g4 (12.Nf3 Nc6+=) 12...hg4= 13.Ng4 Bb7 14.Qc1 (14.Nf6 Nf6 15.Bf6 Rh7+=) 14...0-0-0 (14...a5 15.Nf6 Nf6 16.Bf6=) 15.a5 Re8? (15...b5 16.Qf4 Rh7 17.Nd2+=) 16.Nd2 (16.Nf6 Nf6 17.Bf6 Rh6 18.ab6 Qb6+-) 16...Nf5 (16...b5!?=) 17.ab6+- Qb6 18.Nf3 (18.Ne3 Be7 19.Nf5 ef5 20.Be7 Re7+=) 18...Bc6 (18...Be7 19.Nh6 Nh6 20.Bh6+-) 19.Kf1 (19.Nf6!? Nf6 20.Bf6+- (20.ef6?! Bd6=)) 19...Bb5 20.Kg2 (20.Ke1 Be7+=) 20...Be7 21.Bf1 (21.Be7 Re7 22.Qa3 Qc6+=) 21...Qc6 (21...Kd8 22.Ne3=) 22.Be2 (22.Qa3 Kd8=) 22...Nb6 (22...Kd8 23.Be7 Re7 24.Kf1+=) 23.Be7 Re7 24.Nf6 Ng7 (24...Nd7 25.Qg5+=) 25.Qg5 Qc7 26.Qf4 (26.Kf1 Qd8+=) 26...Qd8 (26...Nf5 27.h5+=) 27.Ng5 Qc7 28.Rh3 (28.Kf1 Kd8+-) 28...Kb7 (28...Nf5 29.h5+=) 29.Rah1 Nd7 30.Qf3 (30.Nd7 Rd7 31.Qf6 Rg8+-) 30...Nb8 (30...Nf5 31.Ngh7+=) 31.h5 (31.Kf1 a5+-) 31...Nh5 (31...gh5 32.Kf1+-) 32.Nh5 (32.Kf1 Ba4+-) 32...Rh5 33.Rh5 gh5 34.Rh5 Nc6 35.Rh7 Nd8 36.Qf6 Be8 37.Bd1 Ka7 38.Bh5 Qd7 39.Rh8 Kb6 40.Rf8 a5 41.ba5 Ka5 42.Qh8 Nb7 43.Nh7 Qb5 44.Nf6 Bc6 45.Ra8 Kb6 46.Qf8 Rc7 47.Bf7 (47.Qb8!? Re7 48.Qa7 Kc7+-) 47...Qb1 (47...Qb2 48.Ne8 Qc3 49.Nc7 Qd4 50.Ra6 (50.Be6?! Qe4 51.Kh3 Qh1 52.Kg3 Qg1 53.Kh4 Qh2 54.Bh3 Kc7+-) 50...Kc7 51.Qg7+-) 48.Be6 1–0. Barua,Dibyendu (2550) – Najjar,Ahmad, Dubai Asian Cities, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 c4 7.Be2 Ng6+=.

6.d4 c4 7.Bg5 Qc7 (7...h6 8.Bc1=) 8.Na3 Bd7 9.Nc2 Nf5 10.g4 (10.a4 h6 11.Bf4 Nc6=) 10...Ne7 11.a4 b5 12.ab5 Bb5 13.Ra5 Bd7 14.Be2 a6 15.Qd2 Nbc6 16.Ra2 Ng6 17.h4 h6 18.Be3 Nge7 19.Na3 (better 19.0-0+=) 19...g6?? (better 19...Rb8=) 20.Nb5!+- Qb8?? (20...ab5 21.Ra8 Pinning (21.Ra8 Deflection; 21.Ra8 Clearance)) 21.Nd6 Kd8 22.Nf7 Ke8 23.Nd6 (better 23.Nh8 Bg7 24.Ng6 Ng6 25.Bh6 Bh6 26.Qh6 Nf8+-) 23...Kd8 24.Nf7 Ke8 25.Nh8 Bg7 26.Bh6 (better 26.Ng6!? Ng6 27.Bh6 Bh6 28.Qh6 Nf8+-) 26...Bh8 27.Qf4 Kd8 28.Qf8 Kc7 29.Qb8 Kb8 30.Ng5 (30.Bg5 Be8+-) 30...Ng8 31.Nf7 (31.Bf8 Kb7 32.Bc5 Ne5 33.de5 Be5+-) 31...Nh6 32.Nh6 Be8 33.h5 Ne7 34.hg6 Bg7 (34...Ng6 35.Ng8+-) 35.g5 (35.Nf5 ef5 36.Rh7 Ng6 37.Rg7 fg4 38.Bg4 Nf4+-) 35...Bg6 (35...Ng6 36.Kd2+-) 36.Bh5 (36.Bg4 Be4 37.Rg1 Nf5+-) 36...Be4 (36...Kc7 37.Bg6 Ng6 38.Nf7+-) 37.f3 Bb1 38.Ra1 Bg6 39.Ng8! Bh5 (39...Ng8 40.Bg6 Deflection) 40.Ne7 Bf3 (40...Be8 41.Rh7 Bf8 42.Rh8+-) 41.Rh7 Be5 (41...Ka7 42.Rg7 Kb6 43.Ra5+-) 42.Nc6 (42.Nc6 Kc8 43.Ne5+-) 1–0. Feng,Richard (1645) – Kulik,Nicolas, World Youth Open U14, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 cd4 7.cd4 Nf5 8.a3 Be7 9.Bd3 Nc6 10.Bb2 Bd7 11.Nc3 g6 12.Bf5 (12.Ba6 Bc8 13.Bb5 Bd7+=) 12...gf5 13.Ne2 (13.0-0 a6+=) 13...Rc8 (13...b5 14.Nc3=) 14.Nf4 b5 15.Qd2 Qb6 16.0-0 Kd8 (16...Rc7 17.Nh5+=) 17.Rfc1 Kc7 (17...Rg8 18.Rc2+-) 18.Nd3+- Kb7 (18...h5 19.Rc2+-) 19.Nc5 Bc5 (19...Kc7 20.Rc3+-) 20.bc5+- Qd8 21.a4 (better 21.Bc3+-) 21...Nb8?? (better 21...b4+-) 22.ab5+- Bb5 23.Qb4 a6 (23...Kc6 24.Ra7 Na6+-) 24.Ra6!! Na6 (24...Ka6 25.Ra1; 24...Na6) 25.Qb5 Kc7 26.Qa6 (26.Bc3 Ra8 27.Ba5 Kc8 28.Bd8 Kd8+-) 26...Ra8 (26...Kd7+-) 27.Qb6 Kd7 28.c6 Ke8 29.c7 Qd7 (29...Qc8 30.Qc6 Ke7 31.Ba3 Ra3 32.Qd6 Ke8 33.Qa3 Rg8+-) 30.Qb8 Ke7 31.Ba3! Ra3 (31...Ra3 32.Qb4) 32.Qb4 Ke8 33.c8R Qc8 (33...Qd8 34.Qd6 f6 35.Qd8 Kf7 36.Qf6) 34.Rc8 Kd7 35.Qb7 1–0. Craft,Isaac (1790) – Haria,R (1970), e2e4.org.uk Brighton Challengers C, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 Nf5 7.a3 a5 8.b5 Nd7 (8...Be7 9.Bd3=) 9.Bd3 Nh4 (9...Be7 10.0-0=) 10.Ng5 (better 10.0-0+=) 10...Be7?? (10...h6 11.Ne6 fe6 12.Qh5 g6 13.Bg6 Ng6 14.Qg6 Ke7 15.Bg5 hg5 16.Qg5 Ke8 17.Qg6 Ke7 18.Qg5 Ke8 19.Qg6 Ke7 20.Qg5=) 11.Qg4?? (better 11.Qh5 Ng2 12.Kf1+-) 11...h6= 12.Nh3 g6 13.0-0 c4 (13...Qc7 14.Bb2=) 14.Bc2+= Nf8 (14...h5 15.Qe2+=) 15.Qe2 (15.Nd2 h5 16.Qe2 g5+=) 15...a4+= 16.Nd2 Bd7 (16...Nh7+=) 17.f4 (17.Nf3!?+=) 17...h5 (17...Bb5 18.Nf3=) 18.Rb1 Ra5 19.g3 (19.Nf3 Nf3 20.Rf3 Nh7=) 19...Nf5 20.Nf3 (20.Ng5 Rb5 (20...Bb5?? 21.Rb5 Rb5 22.Ba4+-) 21.Re1 Rb3 22.Nb3 ab3 23.Bf5 ef5-/+) 20...Rb5=+ 21.Rb5 Bb5 22.Kg2 Nh7 23.Nhg5 (23.Nf2 Bc6=+) 23...Qd7 24.h3 Bc6 25.Nh7 Rh7 26.Ng5 Bg5 (26...Rh8 27.g4 Ng7 28.Qe1=+) 27.fg5 h4 28.Bf5 gf5 (28...ef5!? 29.Qb2 b5=+) 29.g4+= fg4 (29...Bb7!?+=) 30.Qg4+/- Kd8 31.g6 (31.Rf6!? Rg7 32.Qh4+/-) 31...fg6+= 32.Bg5 Kc7 (32...Kc8 33.Rf6+=) 33.Rf8 (better 33.Rf6+=) 33...Rf7?? (better 33...Qg7 34.Qf3 Bd7=) 34.Rd8+- Qd8 (34...b5 35.Rd7 Bd7 36.Bh4+-) 35.Bd8 Kd8 36.Qe6 Rc7 37.Qg8 Kd7 (37...Be8 38.Qd5 Rd7 39.Qa8 Ke7 40.Qa4+-) 38.e6 Ke7 39.Qg7 Kd8 40.Qf8 Be8 41.Qd6 Kc8 42.Qb6 (42.e7 Bc6+-) 42...Rb7?? (better 42...Rc6 43.Qa7 Re6+-) 43.Qc5 Rc7 44.Qf8 Kd8 45.Qf6 Kc8 46.Qh8 (46.Kf3!? Kb7+-) 46...Re7 47.Qf6 Rc7 48.Kf3 Rb7 (48...g5 49.Qg5 Bc6 50.Qh4+-) 49.Qf8 Kd8 50.Qd6 Kc8 51.Kg4 Rc7 (51...g5 52.Qc5 Rc7 53.Qd5+-) 52.Kh4 Rh7 (52...Kb8 53.e7 Bf7 54.Qb6 Kc8 55.Qe6 Be6 56.e8Q Kb7 57.Qe6+-) 53.Kg3 Rc7 54.Qd5 Bc6 55.Qe5 Re7 56.d5 Bd7 57.ed7 Kd7 58.Qd4 1-0. Van Foreest,Lucas (2540) - Mica,Marek (2270), European Hybrid Qual, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.d4 Nf5 7.a3 Be7 8.Bb5 Kf8 (8...Bd7!? 9.Be2 Nc6=+) 9.Bd3 Nc6 10.dc5 bc5 11.0-0 h6 12.Qe2 Qc7 13.Re1 g6 (13...c4 14.Bc2=) 14.Nbd2+= Kg7 15.Bb2 (15.g4 Nh4+=) 15...Rb8 16.Rab1 Rd8 (16...c4 17.Bc2=) 17.h3 (17.b5 Na5+=) 17...Rd7 (17...c4 18.Bc2=) 18.Nb3+= c4 19.Bf5 cb3 (19...ef5 20.Nbd4+=) 20.Bd3+- Bf8 (20...a5 21.b5 Nd8 22.Rec1+-) 21.Ba1 (21.Nd2 Kg8 22.Nb3 Rd8+-) 21...Kh7 22.h4 Kg8 23.h5 g5 24.Nh2 (24.Nd4 Nd4 25.cd4 a5+-) 24...Ne5 25.Qe5 Bd6 26.Qf6 Bh2 27.Kf1 Qd8? (better 27...Qf4 28.Qh6 g4 29.Qh7 Kf8 30.Rb3 Bb7+-) 28.Qh6+- f5? (28...f6 29.Re6 Rf7 30.Qg6 Kf8+-) 29.Re6 Rg7 (29...Rb6 30.c4 d4 31.Bf5 Rg7+-) 30.c4 d4 (30...b2 31.Bb2 d4 32.Rg6 Rg6 33.hg6+-) 31.Rg6 Rbb7 (31...Be5 32.Re1 Rg6 33.Qg6 Kf8 34.Re5 Rb6+-) 32.Re1 (32.Re1 b2 33.Bb2+-) 1–0. Martens,Martin (2405) – Heemskerk,Wim (2235), NED–chT, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 Nf5 7.a3 Be7 8.Bd3 0-0 9.0-0 (9.g4 Nh4+=) 9...Ba6 10.b5 Bc8 11.g4 (11.dc5 bc5 12.c4 Bb7+=) 11...Nh4= 12.Nh4 Bh4 13.f4 f5 (better 13...c4!? 14.Bc2 Be7=) 14.g5 Qe8 15.Rf3 Qh5 (better 15...c4!? 16.Bc2 Qb5+-) 16.Be2+- Qg6? (16...Qe8+-) 17.Rh3 Bg5 (17...Qf7 18.Rh4 a6+-) 18.Bh5 (18.Bh5 Qh5 19.Qh5+-) 1-0. Van Foreest,Lucas (2530) - Edouard,R (2640), chess24.com INT blitz, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.d4 Nf5 7.a3 Be7 8.Bd3 Nc6 9.Bb2 Bd7 (9...c4 10.Bc2=) 10.0-0 (10.Bf5 ef5 11.dc5 bc5 12.Qd5 Rb8+=) 10...c4= 11.Bc2 Qc7 (11...0-0 12.Nbd2=) 12.Re1 (12.b5 Na5 13.a4 a6+=) 12...0-0-0 (12...0-0 13.b5 Na5 14.a4=) 13.Nbd2 (13.Bc1 h6+=) 13...g5 14.Nf1 Ng7 (14...g4 15.N3d2 h5 16.a4+=) 15.Bc1 h6 16.Ne3 Rdf8 (16...h5 17.a4+-) 17.Ng4 (17.b5 Na5 18.a4 h5+-) 17...Nh5 (17...Ne8 18.Qe2+=) 18.Be3 (18.a4 f5 19.ef6 Nf6 20.Nf6 Rf6+-) 18...Nb8 (18...f5 19.ef6 Nf6 20.Nge5+=) 19.Nd2 (19.a4 Nc6+-) 19...Be8 20.Qf3 Nd7 21.Nf1 (21.a4 Nf4+=) 21...f5= 22.ef6 Nhf6 23.Nf6 (23.Qh3 Bd6=) 23...Nf6 (23...Rf6 24.Qe2+=) 24.Qe2 (24.Bd2 Bd6+=) 24...Bh5 25.Qd2 Bd6 26.f3 a6 (26...Qf7 27.a4=) 27.Kh1 (27.Ra2 g4 28.f4 Be8=) 27...Bf7 (27...Rhg8 28.b5 ab5 29.a4=) 28.a4 (28.Bf2 Nh5=) 28...Nh5 (28...Rhg8 29.Qe2=) 29.b5 (29.Qd1 Rhg8=) 29...a5 30.Bg1 (30.Kg1 Nf4=+) 30...Re8 (30...Nf4 31.Bf2=+) 31.Ne3= Nf6 (31...Nf4 32.g3 Ng6 33.Ng4=) 32.Rf1 (32.Re2 Rhf8=) 32...Bf4 (32...Rhf8 33.Rae1=) 33.Qe2 (33.Rae1 Rhf8=) 33...Bd6 34.Nd1 (34.Qd2 Kb8=) 34...Kb7 (34...e5 35.Qf2=+) 35.Nf2 (35.Qd2 Re7=+) 35...Kc8 (35...Rhf8 36.Rae1=+) 36.Rae1 (36.Nd1 e5 37.Ne3 Rhf8=+) 36...Kb7 37.Ne4 (better 37.Ra1!?=) 37...de4-/+ 38.fe4 Bh5 39.g4 Ng4 40.e5 Ba3 41.Qf3 (41.Qe4 Kb8 42.h3 Ne5-/+) 41...Ka7 (41...Kb8 42.Qh3 Nh2 43.Kh2=+) 42.Qh3=+ Nh2 43.Bh2 Bf7 44.Rf6 The isolani on e6 becomes a target 44...h5 45.Ra1 Bb2 46.Ra2 Bc1 47.Be4 Bf4 (47...Rh6! 48.Rf1 Bf4=) 48.Rf2 (48.Bf4 gf4 49.Rf2 Rhg8+-) 48...Reg8 (48...Rhg8 49.Bf4 gf4 50.R2f4+-) 49.Bf4 gf4 50.R2f4 Rg7 51.Bc6 Rhg8 52.Qf3 Be8 53.Re6 Bc6 (53...Bd7 54.Rd6 Bg4 55.Qf1+-) 54.Rc6 (54.Qc6 Qc6 55.bc6 Rg3+-) 54...Rg1 55.Kh2 R1g2?? (55...Qb7 56.Rcf6 Qf3 57.Rf3 R1g2 58.Kh3 Ra2+-) 56.Qg2 Rg2 57.Kg2 Qg7 58.Kh2 Qh7 (58...h4 59.Rf3 Qg4 60.Rcf6+-) 59.Rcf6 (59.Rc4?! Qc2 60.Kg1 Qb1 61.Rf1 Qg6 62.Kh2 Qc2 63.Kh1 Qe4 64.Kg1 Qg6 65.Kh2 Qc2 66.Kh1 Qe4 67.Kg1 Qg6=) 59...Qc2 60.Kg1 (60.Rf2 Qf2 61.Rf2 h4 62.e6 Kb8 63.e7 Kc7 64.e8Q Kd6 65.Qd8 Ke6 66.Rf6) 60...Qc1 61.Kh2 Kb7?? (61...Qc2 62.Rf2 Qf2 63.Rf2 Kb7 64.Rf7 Kb8 65.e6 Kc8 66.Rf8 Kb7 67.e7 Kc7 68.e8Q Kd6 69.Qd8 Ke6 70.Rf6) 62.Rf8+- (62.Rf8 Qd2 63.Rf2 Qf2 64.Rf2 h4 65.Rf7 Kb8 66.e6 Kc8 67.Rf8 Kb7 68.e7 Kc7 69.e8Q Kd6 70.Qd8 Ke6 71.Rf6) 1–0. Salmensuu,Olli (2455) – Hansen,He (2045), 3rd International, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 Ng6 7.a3 Bb7 8.h4 cd4 9.cd4 (worse 9.Qd4 Nc6 10.Bb5 Nge7=) 9...Nd7 10.h5 Ne7 11.h6 g6 12.Bg5 Qc7 13.Nbd2 Rc8 14.Bb5 a6 15.Be2 (15.Bf6 Rg8 16.Bd7 Kd7+-) 15...Qc3+= 16.Kf1 Nf5 17.Nb3 Be7? (better 17...Qb2!?+=) 18.Bd2 Qc7 19.g4 Nd4 20.Nbd4 Ne5 21.Rc1 (21.Bf4 Bd6 22.Ne5 Be5+-) 21...Qd6? (better 21...Nc4 22.Kg1 0-0+=) 22.Rc8+- Bc8 23.Ne5 Qe5 24.Bc3 (better 24.Nc6 Qd6 25.b5 ab5 26.Ne7 Qe7 27.Bb4+-) 24...Bb7?? (24...f6 25.b5+-) 25.Qd2 (25.Qa4 Kd8 26.Ne6 Qe6 27.Bh8 Qe4+-) 25...Bg5? (25...0-0 26.b5 Ba3 27.ba6+-) 26.Qd3 (26.Nf3 Bd2 27.Be5 f6 28.Bf6 0-0+-) 26...0-0 (26...f6 27.b5 a5+-) 27.Nf3 Qf4 28.Bd2 (28.Ng5?! Qg5 29.Qd4 Qc1 30.Be1 f6 31.Qb6 Qc8+-) 28...Qg4 (28...Qd6 29.Ng5 e5 30.b5+-) 29.Ng5 (29.Ng5 Qf5 30.Qd4+-) 1–0. Schuls,O (2220) – Virro,Toomas, 19th Puhajarve Rapid (28), 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Ne7)

6.d4 Ng6 7.h4 Be7 8.h5 Nf8 9.Bd3 (9.h6 g6 10.bc5 bc5 11.dc5 Nfd7+=) 9...cb4= 10.Bd2 bc3 11.Nc3 Nc6 12.Rc1 Bb7 13.Qa4 Nd7 14.Rh3 0-0 15.Rg3 f5 (15...Nb4 16.Bf1 Kh8=) 16.Ng5+= Bg5 17.Bg5 (worse 17.Rg5 a6 18.Ne2 b5=+) 17...Qe8 18.Bh6 Rf7 19.Nb5 Nde5 20.de5 Ne5 21.Qd4 (21.Be2 Nc4 22.Bc4 dc4 23.Qc4 f4+-) 21...Nd3+= 22.Qd3 Qf8? (22...f4 23.Rg4 Rc8 24.Rc8 (worse 24.Bf4 e5 25.Nd6 Qe6 26.Nc8 Qg4 27.Be5 Bc8-/+) 24...Qc8 25.Rf4 (25.Na7 Qc1 26.Qd1 Qc3 27.Qd2 Qe5 28.Qe2 Qf6-/+; 25.Bf4? e5 26.Rg5 ef4-+) 25...Qc1 26.Qd1+/-) 23.Qd4?? (23.Rc7!? Qb4 24.Kd1 g6 25.hg6 Rc7 26.Nc7 Qa4 27.Ke1 Rc8 28.Ne6 Qe4 29.Qe4 de4 (29...fe4?? 30.gh7 Kh7 31.Be3+-) 30.gh7 Kh7+-) 23...f4 (23...e5 24.Qd3 Re8 25.Nc7=+) 24.Rg5 (better 24.Rg7!? Rg7 25.Bg7 Qg7 26.Qg7 Kg7 27.Rc7 Kh6 28.Rb7+-) 24...e5= 25.Qb2 (25.Bg7!? Rg7 26.Qe5 Rg5 27.Qg5 Kh8 28.Qe5 Qg7 29.Qg7 Kg7 30.Rc7 Kh6 31.Rb7+-) 25...Re8-/+ 26.Rc7 Ree7 (26...Rc7 27.Nc7 Re7 28.Bg7 Rg7+=) 27.Rc2 (27.Re7 Re7 28.Nd6 Qf6+/-) 27...Rf6 (better 27...Re6!?-/+) 28.Bg7=+ Rg7 29.Qe5 Qb4 (29...Rff7 30.Rg7 Rg7 31.Kd1=+) 30.Nc3 (30.Kd1!? Qb1 31.Rc1 Qd3 32.Ke1 Qe4 33.Qe4 de4 34.Rg7 Kg7 35.Rc7 Rf7 36.Rf7 Kf7 37.Nd6 Ke6 38.Nb7+-) 30...Qd6 (30...Rg5!? 31.Qf6 Rg7=+) 31.Rg7=+ Kg7 32.Qd6 Rd6 33.Ne2 Rc6 34.Rc6 Bc6 35.Nf4 Kf6 36.Ke2 Ke5 37.g3 0-1. Krizek,Krystof (1905) - Bosak,J (2025), 44th Vsetin Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.Be2 =.

5.c3 f6

6.a3 fe5 7.Ne5 Nf6 8.d4 Bd6 9.Bg5 (9.Bb5!? Bd7 10.Nd7 Nbd7 11.0-0=) 9...0-0 10.Bd3 Nbd7 (10...Qc7 11.0-0+=) 11.Qe2 (better is 11.f4!? c4 12.Bc2=) 11...Qc7-+ 12.Bf6 Rf6 (12...gf6?! 13.Bh7 Kh7 14.Qh5 Kg7 15.Qg4 Kh8 16.Qh5 Kg8 17.Qg6 Kh8 18.Qh5 Kg7 19.Qg4 Kh8 20.Qh5=) 13.Ng4 Rf7 14.Nd2 e5 (14...cd4 15.cd4 Nf6 16.Ne5 Be5 A) 17.Qe5?? Qc3 18.0-0 Qd3-+ (worse is 18...Qd2 19.Rad1 Qc3 20.Qe3-+); B) 17.de5+=) 15.0-0 Bb7 (15...ed4!? 16.cd4 Bb7-/+ (worse is 16...cd4 17.Nf3=; worse is 16...cb4 17.ab4 Qd8 18.Nf3+=)) 16.bc5+= bc5 17.Rab1 e4 18.Ne4 de4 19.Bc4 Nb6 20.Bf7 Qf7 (worse is 20...Kf7 21.f3 ef3 22.Rf3 Kg8 23.Rh3-/+) 21.Ne3 cd4 22.cd4 Ba3 23.Qb5 Bd6 24.Qa5 g6 25.Rb2 h5 26.Ra1 Kh7 27.Qb5 (27.Rab1 Bc7-/+) 27...Kh6 28.Ra5 Qf6 29.Rba2 a6 30.Qb2 Rc8 31.g3 Bf8 32.Ra1-/+ Bg7 33.Rb1 Rf8 34.Ra2 Bd5?? 35.Ra6+- Rb8?? 36.Qd2 Nc4?? 37.Nc4 Kh7 38.Rf6?? Rb1-+ 39.Kg2 e3 (39...e3 40.Kh3 ed2 41.Nd2 Rb4-+) 0–1. Jansen,D – Itzhaky,Shmuel, Leiden NED, 8th Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Ne7 7.d4 Qc7 8.Bd3 Nbc6 9.Bf4 Ng6 10.Bg3 Qf7 (10...f5 11.Nbd2+=) 11.Qe2 fe5 12.b5 (12.Bg6 Qg6 13.b5 e4 14.bc6 ef3 15.Qf3 Qc2=) 12...Na5 (12...Nd4 13.cd4 e4 14.Ng5 ed3 15.Nf7 de2 16.Nh8 Nh8 17.Ke2=) 13.Bg6 (13.de5?! Nb3 14.Ng5 Qg8=) 13...Qg6 14.Ne5 Qf5 15.Nd2 Be7 16.0-0 0-0 17.Rfe1 c4 18.a4 h6 (18...a6 19.Ndf3+=) 19.Nc6 (19.Ndf3!?+-) 19...Nc6= 20.bc6 Qc2 21.Rec1 Qf5 22.Nf3 Re8 23.Re1 Bf6 24.Qb2 Ba6 25.Re3 Rac8 26.c7 g5 27.h3 Qh7 (27...g4 28.hg4 Qg4 29.a5+-) 28.Rae1 Qf5 29.Ne5 Rc7? (better 29...Be5 30.Be5 Qg6+-) 30.Rf3 Be5 (30...Rce7 31.Rf5 ef5 32.f4+-) 31.Rf5 (31.Re5?! Qh7+=; 31.Be5?! Qh7 32.Bc7 Qc7+-) 31...ef5 32.Re5 Re5 33.Be5 Rd7 (33...Re7 34.Qb4 Re6 35.Bb8+-) 34.Qe2 b5 (34...Kh7+-) 35.Qh5 Kh7 (35...Kf8+-) 36.Qe8 Rb7 (36...Rg7 37.Qf8 Rd7 38.Qh8 Kg6 39.Qg8 Kh5 40.Qe8 Rf7 41.Qf7 Kh4 42.Bg3) 37.Qh8 Kg6 38.Qf6 (38.Qg8 Kh5 39.Qe8 Rf7 40.Qf7 Kh4 41.Bg3) 38...Kh5 39.Qf5 ba4 (39...b4 40.g4 Kh4 41.Kg2 bc3 42.Bg3) 40.g4 Kh4 41.Kg2 (41.Kg2 a3 42.Bg3) 1–0. Brustkern,J (2235) – Khadempour,F (2190), FSIMB October, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.Ba3 Nd7 7.Bb5 a6 8.Bc6 Rb8 9.bc5 (9.ef6 Qf6 10.bc5 Bc5+=) 9...bc5= (worse 9...fe5 10.Ne5 Qg5 11.Nd7 Bd7 12.Bd7 Kd7 13.0-0+-) 10.d4 (10.ef6 Ngf6 11.Qe2 Rb6 12.Qe6 Qe7 13.Qe7 Be7 14.Bd7 Bd7=) 10...Qc7 11.Ba4 Be7 12.0-0 fe5 (12...cd4 13.ef6 gf6 14.Nd4+=) 13.Ne5+= Ngf6 14.Nc6 Bd6 (14...Rb7!? 15.Ne7 Ke7+-) 15.Nb8+- Bh2 (15...Qb8 16.Qe2+-) 16.Kh1 Qb8 17.Qe2 0-0 (17...Kd8 18.Bd7 (18.Qe6 Ne5 19.Bd7 Ned7-+; 18.Bc5?! Nc5 19.dc5 Qf4=) 18...Bd7 19.Bc5+- (19.dc5 Bb5 20.Qe1 Bf1 21.Qf1 Ne4-+)) 18.Nd2 (18.g3!? Ne4 19.Kh2 Nb6+-) 18...Bd6 (better 18...Bf4+-) 19.g3?? (19.Bd7 Bd7 20.dc5+- (20.Qa6? Bb5 21.Rfb1 Ba6 22.Rb8 Rb8-+)) 19...e5=+ 20.Kg2 e4 (20...Qc7 21.de5 Be5 22.Bb2=+) 21.Rab1 Qc7 22.Bd7 (better 22.f3 Qa5 23.Bd7 Bd7 24.dc5 ef3 25.Nf3= (25.Rf3 Qa3 26.cd6 Bg4=)) 22...Qd7-+ (worse 22...Bd7 23.Qa6 Bg4 24.Qb6+-) 23.dc5 Qh3 24.Kg1 Ng4 25.f3 Qg3 26.Qg2 Qg2 27.Kg2 Ne3 28.Kf2 Nf1 29.Kf1 Be5 30.c6 Rf6 31.c4 (31.Be7 Bh3 32.Kf2 Rc6 33.fe4 Rc3-+) 31...e3 (31...d4 32.c7 Bc7 33.Ke2 ef3 34.Nf3-+) 32.cd5 ed2 33.Ke2 h5 (33...Bf4 34.Rd1-+) 34.Be7 (34.Bb4 Rf5-+) 34...Rg6 (34...Rf5 35.d6 Kf7 36.Kd2 Bd6 37.Bd6 Rd5 38.Ke3 Rd6 39.Rc1-+) 35.Kd2 Bd6 (35...Kf7 36.Bb4-+) 36.Bd8? (better 36.Ke3 Kf7 37.Bd6 Rd6 38.Rd1-/+) 36...Rg2-+ 37.Kc3 Be5 (37...Ra2 38.Rb3-+) 38.Kb4 (38.Kb3 Rd2 39.Kc4 Ra2-+) 38...Ra2 39.Re1 (39.Be7 Kf7 40.d6 Rd2-+) 39...Bd6 40.Kc4 Ra4 41.Kd3 Bf5 42.Ke2 Rd4 (42...Bf4 43.Bb6-+) 43.Bb6 (43.Rd1 Rd1 44.Kd1 Kf7-+) 43...Rd5 44.c7 (44.Rh1 Bf4 45.Kf2 Rd2 46.Kg1 Rd1 47.Kg2 Rh1 48.Kh1 Kf7-+) 44...Re5 (44...Re5 45.Kf1 Bh3 46.Kf2 Rb5-+) 0–1. Hanser,Michael (2240) – Perhinig,Robert (2235), AUT–chT2S, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 f6)

6.b5 Nd7 7.d4 Bb7 8.Bd3 Qc7 9.Qe2 (9.0-0 0-0-0+=) 9...Ne7 (9...fe5 10.de5 Ne7 11.0-0+=) 10.0-0 (10.ef6 Nf6 11.dc5 bc5 12.Qe6 c4+/-) 10...fe5 11.Ne5 Ne5 12.de5 (12.Bf4 c4 13.Qh5 g6 14.Qe5 Qe5 15.Be5 Rg8=) 12...0-0-0 (12...g6 13.Bg5=) 13.Bf4 (13.a4 c4 14.Bc2 Ng6 15.Bg6 hg6+=) 13...d4 (13...c4 14.Bc2=) 14.c4 Ng6 15.Bg3 Be7 16.Nd2 (16.Qg4 Nf8 17.Qg7 Ng6+=) 16...Rdf8 (16...Bh4 17.Bh4 Nh4 18.g3+=) 17.Be4 (17.Qg4 Kb8 18.Bg6 hg6=) 17...Nf4 (17...Be4 18.Qe4 Rf5 19.a4=) 18.Bf4 Rf4 19.Bb7 Qb7 20.a4 Rhf8 21.a5 Bg5 22.ab6 ab6 23.Ra6 R4f5 (23...Kb8 24.Ra3+/-) 24.Nf3 Rf3 25.gf3 Bd8 26.Qe4 Rf3?? (26...Bc7 27.Ra8 Bb8+-) 27.Qb7 (better 27.Ra8 Qa8 28.Qa8 Kd7 29.Ra1 Rf7 30.Qc6 Ke7 31.Ra8 Rf4 32.Ra7 Kf8 33.Qd6 Kg8 34.Qd8 Rf8 35.Qe7 Rf7 36.Qf7 Kh8 37.Qg7) 27...Kb7+/- 28.Rc1?? (28.Rfa1 Bc7 29.Ra7 Kc8 30.Ra8 Kd7+/-) 28...Rf5 (better 28...Bc7=+) 29.Rca1+/- Bc7 (29...Re5? 30.Ra7 Kc8 31.f4+- (31.Rg7?! Rg5 32.Rg5 Bg5+/-)) 30.Ra7 Kc8 31.Ra8 Kd7 32.R1a7 Rf7?? (better 32...d3 33.Ra3 Be5 34.R8a7 Kc8 35.Rd3 Bd4+/-) 33.f4 (better 33.Rc7 Kc7 34.Ra7 Kd8 35.Rf7+-) 33...d3 34.Kf2 (34.Ra3!? Rf4 35.Rd3 Rd4+-) 34...Rf4 35.Ke3 Rf7 (35...d2 36.Kd2 Rf2 37.Ke3+-) 36.Kd3 (36.Rc7 Kc7 37.Ra7 Kc8 38.Rf7 Kb8+-) 36...g5 (36...Rf3 37.Ke4 Rf5 38.Rb7 Re5 39.Kd3+-) 37.Ke4 (37.Rc7 Kc7 38.Ra7 Kb8 39.Rf7 h5+-) 37...h5 (37...Rf5 38.Rb7 Re5 39.Kd3+-) 38.Rb8 (better 38.Rc7 Kc7 39.Ra7 Kc8 40.Rf7 Kd8+-) 38...g4 (38...Rf4 39.Ke3 Rf5 40.Rb6 Re5 41.Kd3+-) 39.Rbb7 (better 39.Rb6! Re7+-) 39...Kc8 40.Rc7! Rc7 41.Rc7 Kc7 42.Kf4 Kd7 43.Kg5 Ke7 44.Kh5 Kf7 45.Kg4 Kg6 46.h3 Kh6 47.h4 Kg6 48.h5 Kh6 49.Kh4 Kg7 50.Kg5 Kh7 51.h6 (51.h6 Kh8 52.Kf6 Kh7 53.Ke6 Kh6 54.Kf6 Kh5 55.e6 Kg4 56.e7 Kf3 57.e8Q Kg2 58.Qe1 Kh2 59.Qf2 Kh3 60.Ke5 Kg4 61.Qg2 Kh4 62.Kf5 Kh5 63.Qg5) 1-0. zsolti_83 (2665) - Fifth_column (2670), Rated Bullet game, lichess.org, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3)

6.bc5 bc5 7.Na3 Nc6+=.

6.d4 cb4 7.Bd3 Nc6 8.0-0 bc3 9.Nc3 Bb4 10.Qb3 Nge7 11.ef6 gf6 12.Bf4 (12.Re1 Bd6=) 12...Bd6 13.Bh6 Kf7 (13...Rg8 14.Rac1=+) 14.Rfe1 Nb4 15.Bf1 Ba6 16.Nb5 Bb5 17.Bb5 a6 18.Qe3? (18.Bd2 Nc2 19.Qc2 ab5=) 18...Nf5?? (better 18...ab5 19.Qe6 Kg6-/+) 19.Qe6+= Kg6 20.Bd7 (20.Bc1 Qg8 21.Bd7 Qe6 22.Re6=) 20...Nh6 (20...Bh2 21.Nh2 Nh6+-) 21.Qd6+- Nc2 (21...Nf7 22.Nh4 Kh5+-) 22.Ne5 Kg7 (22...Kh5 23.g4 Ng4 24.Ng4 Rg8 25.Re5 Kg6 26.Rd5 Na1 27.Bf5 Kg7+-) 23.Nc6 Nf5 24.Qe6 (24.Qd5 Nfe3 25.Re3 Ne3 26.fe3 Qf8+-) 24...Ncd4 25.Nd8 Ne6 26.Ne6 (worse 26.Re6 Rhd8 27.Bc6 Ra7-/+; 26.Be6?! Rhd8 27.Bf5 Ra7+-) 26...Kf7 27.Nd8! Rad8 (27...Rad8 28.Bf5 Discovered attack; 27...Rhd8 28.Bf5 Discovered attack) 28.Bf5 d4 29.Rac1 Rhe8 30.Re8 Re8 (30...Ke8 31.Bh7 Rd5 32.Bd3+-) 31.Rc7 (31.Bh7 b5+-) 31...Kf8 32.Rc8 (better 32.Kf1!? Re5 33.Bh7 Ra5+-) 32...Rc8 33.Bc8 a5 34.Kf1 Ke7 35.Ke2 Kd6 36.Kd3 Kc5 37.h4 b5 38.h5 (38.g4 h6+-) 38...h6 39.g4 Kd5 (39...b4 40.f4 a4 41.Be6+-) 40.f4 b4 41.Bb7 Kc5 (41...Ke6 42.Kd4 Kd6 43.g5 fg5 44.fg5+-) 42.g5! fg5 (42...fg5 43.fg5 Combination; 42...hg5 43.h6 Passed pawn) 43.fg5 a4 44.gh6 a3 (44...b3 45.ab3 a3+-) 45.h7 b3 46.h8Q b2 47.Qd4 Kb5 48.Kc2 b1Q 49.Kb1 Ka5 50.Qc5 (50.Qc5 Ka4 51.Bc6) 1–0. Steil Antoni,F (2100) – Vovk,Ok (2210), London Classic Women's Invitational, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.d4 cd4 7.Nd4+= Qc7 8.Bb5 Kf7 9.Bf4 a6 10.Bd3 Nd7? (better 10...g6 11.Qf3 Nc6 12.Nc6 Qc6+=) 11.Ne6! Qa7?? (11...Ke6 12.Qg4) 12.Nd8 (12.Nf8?! Kf8 13.ef6 Ngf6+-) 12...Ke8 13.Nc6 (13.Nc6 Ne5 14.Na7 Ra7 15.0-0+-) 1–0. Schaefer,Guenter – Trescher,Manfred, Bahn–chM Borkum, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 f6)

5.c3 Nh6

6.a3 a5 7.b5 (7.bc5 bc5 (worse 7...Bc5 8.d4 Be7 9.Bh6 gh6 10.Qc1+-) 8.Be2 Nf5=) 7...Be7 8.d4 c4 (8...Nf5 9.dc5 Bc5 10.Bd3+=) 9.a4 (9.Bh6!? gh6 10.a4+-) 9...Nf5= 10.h4 Nh4?? (better 10...Nd7=) 11.Nh4+- Nd7? (better 11...Bh4 12.Qg4 Bf6+-) 12.Qg4 Kf8 (12...g6 13.Ba3+-) 13.Nd2 f5 1–0. Chulivska,Vita (2230) – Vacek,A (2115), Open A Pardubice CZE, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Qd7 7.d4= Ba6 (7...Nc6!?=) 8.Ba6+- Na6 9.Qe2 c4 10.Bh6 gh6 11.0-0 (11.a4 Be7+-) 11...Nc7 (11...Qa4 12.Nbd2+=) 12.Nbd2 (12.a4 a5 13.b5 Rg8+-) 12...a6 (12...Qa4!?+=) 13.a4+- Rg8 14.Nh4 (14.Qe3 a5 15.ba5 Ra5+-) 14...Qe7 (better 14...Qd8!? 15.Nhf3 Qd7=) 15.Ndf3+- 0-0-0 (15...Bg7 16.a5 b5 17.Rfe1+-) 16.g3 (16.a5 ba5 17.Ra5 Nb5+-) 16...f5 17.ef6 (17.a5 b5+-) 17...Qf6 18.Ng2 h5 (18...Bd6 19.Rfe1+-) 19.Ne5 Bd6 20.Qh5 Rg5 21.Qh4 Be5 22.de5 Qf5 (22...Qe5?? 23.f4 Qc3 24.fg5+- (24.Qg5?! Qb4 25.f5 Qc5 26.Kh1 d4+-)) 23.f4 (23.a5 b5 24.Rfe1 Rf8+-) 23...Rh5 (23...Rgg8 24.a5 b5 25.Qe7+-) 24.g4 (24.Ne3 Qg6 25.Qg4 Qg4 26.Ng4 d4+-) 24...Rh4 25.gf5 Rg4 (25...Rg8 26.fe6 Rhg4 27.Rf2 Ne6 28.Kh1+-) 26.Kh1 (26.f6 Rdg8 27.Rf2 d4 28.cd4 Kd7+-) 26...ef5 (26...d4!? 27.Rac1 b5 28.fe6 Ne6 (28...ba4? 29.e7 Rdg8 30.f5+-) 29.ab5 ab5+=) 27.Ne3+- Rh4 28.Nf5 Rh3 29.Ng3 d4 30.cd4 (30.Kg2 Rh4 31.Nf5 Rh5 32.Nd6 Rd6 33.ed6 Nd5+-) 30...Rd4 31.Rae1 (31.Kg2 Rh4 32.Nf5 Rg4 33.Kh1 Rdf4 34.h3 Rf1 35.Rf1+=) 31...Rh4? (31...Rd2 32.Re2 Re2 33.Ne2=) 32.f5?? (better 32.Nf5!? Rhf4 33.Nd4 Rd4 34.e6+-) 32...c3 (32...Rd2 33.Re2 Re2 34.Ne2+=) 33.Rc1 (better 33.f6!? Rd2 34.Re2 Rb4 35.Rc1+=) 33...Nd5 (33...Nd5 34.Rf3 Kd7=) 0–1. Gallegos,Paul (2090) – Poehlmann,Roger (2175), Jim Hurt Rating, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6)

6.a3 Be7 7.Bd3 (7.d4 Nf5=) 7...Qd7 8.Qe2 a5 (8...0-0!?=+) 9.Bb5 Nc6 10.bc5 bc5 (worse 10...Bc5 11.d4 Be7 12.c4+-) 11.d4 Ng8 (11...Nf5!?=) 12.0-0 (12.c4 cd4 13.Nd4 Bb7+-) 12...c4+= 13.Ba4 h6 14.Ne1 Qc7 (14...Bd8 15.Qg4 Kf8 16.Qh5=) 15.f4 (15.Bf4 Bd7+=) 15...Bd7 (15...Bd8 16.Qg4 g6 17.Bc2=) 16.Bc2+= 0-0-0? (better 16...a4+=) 17.a4+- f5 (17...Qb6 18.Qd2+-) 18.ef6 (better 18.Na3!? Na7+-) 18...gf6 19.Na3 Na7 20.Nf3 Bd6 21.Nb5 Nb5 22.ab5 Re8 (22...Kb7 23.Qe1+-) 23.Ba4 (23.Ba3!? Ba3 24.Ra3+-) 23...Qb6+- 24.Ba3 Ba3 25.Ra3 Ne7 26.Rfa1 Kc7 27.Bc2 Ra8 28.f5 (better 28.Rb1+-) 28...e5?? (better 28...Nf5 29.Bf5 ef5=) 29.Ne5!+- Bf5 (29...fe5 30.Qe5 Double attack) 30.Nc4 dc4 31.Qe7 Bd7 32.Bf5 Rhd8 (32...Qb5 33.Bd7 Qd7 34.Qc5 Qc6 35.Ra5 Qc5 36.Rc5 (36.dc5?! Ra5 37.Ra5 Kc6+=) 36...Kd6 37.Ra8 Ra8 38.Rc4+-) 33.Bd7 (33.Ra4!? Ra7 34.Bd7 Rd7 35.Rc4 Kb8+-) 33...Rd7 34.Qe4 Rdd8 (34...Ra7 35.Qf5+-) 35.Qf4 (better 35.Ra4 Kb8 36.Rc4 Ra7+-) 35...Qd6 (35...Kd7 36.Qg4 Qe6 37.Qe6 Ke6 38.Kf2+-) 36.Qd6 (36.Qh6?! Rh8 37.Qg7 Kb6+=) 36...Kd6 37.Ra5 (37.Kf2 Kd5 38.Kf3 Rab8 39.Ra5 Rd6+-) 37...Ra5 38.Ra5 Kd5 39.Kf2 Ke4 40.Ke2 (40.b6 Kd3 41.b7+-) 40...Rg8+- 41.g3 Rg5 42.Kd2 Rf5 43.Kc2 Rf2? (better 43...h5!?+-) 44.Kb1+- Kd3 (better 44...Rf5 45.g4 Rg5+-) 45.Ra2?? (better 45.b6 Rf1 46.Ka2 Rf2 47.Ka3 Kc3 48.Rb5+-) 45...Rf1= 46.Kb2 Rf5 47.Ra5 Rf2 48.Ka3 Kc3 49.b6 (better 49.d5!?=) 49...Rb2-/+ 50.Ra6 Rb1 (50...Rb3!? 51.Ka4 Kd4-+) 51.Ka2= Rb2 52.Ka3 Rb1 (52...Rb3!? 53.Ka2 Kd4-/+) 53.Ka2= Rb2 ½–½. Fiori,Hector (2065) – Peric,Slavisa (2165), 14th Rochefort Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nh6)

6.Bb5 Bd7 7.Bd3 (7.Na3!?=) 7...cb4-/+ 8.cb4 Bb4 9.a3 (9.0-0 Nc6-/+) 9...Be7 (9...Bc5 10.0-0-/+) 10.Bc2 (10.0-0 Nc6-/+) 10...f5 (10...Nc6!?-/+) 11.ef6=+ Bf6 12.d4 Nf5 (12...Qc7 13.0-0=+) 13.g4 (13.0-0!?=+) 13...Nh4-/+ 14.Nh4 Bh4 15.g5 g6 (15...Bg5 16.Qh5 Double attack (16.Qh5 Decoy)) 16.Qg4= Bf2 (better 16...Qc7!? 17.Ra2 Qc4=) 17.Kf2+- 0-0 18.Kg2 e5 (18...Nc6 19.Bb3+-) 19.Qd1 e4 20.Rf1 Rf1 21.Kf1 (worse 21.Qf1 Qc8 22.Qf2 Bh3 23.Kh1 Qc4+=) 21...Bh3 (21...Be6 22.Kg1+-) 22.Kg1 Qd7 23.Nc3 Be6 24.Be3 Nc6 25.Be4! de4 26.Ne4 (26.d5 Ne7 27.de6 Qe6 28.Rb1+-) 26...Qf7? (better 26...Kh8+=) 27.Nf6+- Kf8 (27...Kg7 28.Qf3 Rc8 29.d5 Bd5 30.Qd5 Qd5 31.Nd5+-) 28.Qf3 Rc8 (28...Qb7 29.Rc1 Na5 30.Nh7 Kg8 31.Nf6 Kf8 32.d5+-) 29.d5 Bd5 30.Qd5 Qd5 31.Nd5 Re8 (31...Ne7 32.Nf6 Nf5+-) 32.Rf1 Kg7 33.Bd2 Re2 (33...Re6 34.Bc3 Kg8 35.Nf6 Kf7 36.Nh7 Ke7 37.Nf6+-) 34.Bc3 Kg8 35.Nf6 Kg7 (35...Kf7+-) 36.Nd7 (36.Nd7 Ne5 37.Be5 Re5 38.Ne5+-) 1–0. Compton,Alistair (2090) – Osuna Vega,Enrique (2175), Gibraltar Challengers Week1, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nh6)

6.bc5 bc5 7.Bb5 Bd7 8.Na3 =.

6.bc5 bc5 7.d4 Nf5 8.Bd3 Nc6 9.0-0 Bd7 (9...Rb8 10.Re1=) 10.Bc2 (10.Bf5 ef5 11.dc5 Be6+=) 10...cd4= 11.cd4 Qb6 12.Bf5 ef5 13.Nc3 Be6 14.Qa4 Be7 (14...Rc8!?=) 15.Rb1+- Qc7 16.Nb5 Qd7 17.Ba3 0-0 18.Be7 Ne7 19.Qa3 h6 20.Rb3 Nc6 21.Rc1 Rab8 22.h3 Rb6 23.Nd6 Rfb8 24.Rcb1 Qc7 (24...Rb3 25.Rb3 Rb3 26.ab3+=) 25.Qa4 (25.Qc5 Rb3 26.ab3 Qb6+=) 25...Bd7 (25...Rb3!? 26.Rb3 Rb3 27.Qb3 Nd4 28.Nd4 Qc1 29.Kh2 Qf4 30.Qg3 Qd4-/+) 26.Rb6+- Rb6 27.Qc2 g6 (27...Rb1 28.Qb1 Qb6 29.Qd3+=) 28.h4 (28.Rc1 Qb8+-) 28...Qb8 29.Rb6 Qb6 30.Qd2 Kg7 31.h5 Qb4 32.Qe3 Qb1 ½–½. Abdulla,Al_Hamed (1870) – Ali,Abdulaziz (1910), Asian Nations Cup, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nh6)

6.Be2 Be7 7.0-0 0-0 8.d4 Nf5 9.g4 Nh4 10.Nh4 Bh4 11.f4 (11.Be3 Nc6=) 11...Be7 12.a3 Qe8 (12...Nc6 13.Be3=) 13.Ra2 (13.dc5 bc5 14.Nd2 Bd7=) 13...Ba6 (better 13...Bd7!?=+) 14.Ba6+= Na6 15.f5 f6 (15...Qb5 16.f6 Bd8 17.fg7 Kg7 18.Rf3 cd4 19.cd4+-) 16.ef6+= (worse 16.fe6 fe5 17.Rf8 Bf8 18.de5 Qe6-/+) 16...Bf6 17.Re2 cd4 18.cd4 Qb5 19.Re6 Qc4 Attacks the isolani on d4 (19...Nc7 20.Ree1 Qc4 21.Bb2+=) 20.Bf4 Bd4 (20...Qd4 21.Kg2 Rac8 22.Qd4 Bd4 23.Rd6+-) 21.Kg2+- Rae8 (21...Rac8 22.Nd2 Qb5 23.Nf3+-) 22.Nd2 Qd3? (better 22...Qb5!?+-) 23.Rf3+- Qb5 24.Nb3 Bf6 25.Rd6 (better 25.g5!? Re6 26.fe6+-) 25...Rd8+- 26.Nd4 Qc4 27.Rd8 Rd8 28.Ne6 Rd7? (better 28...Rc8!?+-) 29.g5+- Bc3 30.Qd3 (30.g6 hg6 31.fg6 Bb4 32.ab4+-) 30...Be1? (better 30...Qd3 31.Rd3 Ba1+-) 31.Qd1 Qa2?? (better 31...Bc3=) 32.Kh3+- Bb4 33.ab4 Nb4 (33...Qc4 34.f6 Nb4 35.Ng7+-) 34.f6 ½–½. Szilagyi,Zsolt (2260) – Egedi,Istvan (2285), HUN–ChT2 Maroczy, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.c3 Nh6)

6.h4 cb4 7.cb4 Be7 8.a3=.

6.h4 Bd7 7.a3 Bc6 (7...Nf5 8.d4=) 8.d4+= Nd7 (8...Nf5 9.Bd3+=) 9.h5 (9.Bg5 Be7+-) 9...a6 10.Bd3 (10.Bh6 gh6 11.Rg1 Be7+=) 10...Bb5 (10...c4 11.Bc2+=) 11.Bc2 (11.Bh6 gh6 12.0-0 Bd3 13.Qd3 Bg7+=) 11...a5 (11...Ng8 12.Bg5 Qc7 13.a4+=) 12.bc5 bc5 13.Ba4 (13.Bh6 gh6 14.Nbd2 Ba6+=) 13...Ba4= 14.Qa4 c4 (14...Ng8 15.h6=) 15.Bh6+= gh6 16.Nbd2 Rb8 (16...Be7 17.0-0+=) 17.0-0 Be7 18.Nh2 (18.Rab1 0-0+=) 18...Rb2 19.Qd1 a4 20.Qc1 Qb6 21.Ndf3 (21.Ng4 0-0=) 21...Bf8 (21...Qb3!?=) 22.Ng4+= Qb3 Exerts pressure on the isolated pawn 23.Nh6 (23.Ne3 f6+=) 23...Ba3 (23...Be7 24.Nd2 Qc2 25.Qc2 Rc2 26.Nb1=) 24.Ng5 (24.Nd2 Ra2 25.Nb3 Bc1 26.Ra2 cb3 27.Rc1 ba2+=) 24...Rf8 (better 24...Be7!?+=) 25.Qf4+- (25.Nh7 Rh8 26.Nf7 Rh7 27.Ra3 Qa3 28.Nd6 Kd8 29.Qg5 Kc7=) 25...Be7? (better 25...Qc3!? 26.Nh7 Rb7+-) 26.Nh7+- (26.Ngf7 a3-/+ (worse 26...Qc3 27.Ra4 Rb6 28.Ra7+-)) 26...a3? (26...f5 27.Qg3 Kd8+-) 27.Nf8 Bf8 28.Qf7 Kd8 29.Ng4 a2 (29...Be7 30.Qe6 Qc3 31.Qg8 Kc7 32.Ne3+-) 30.Nf6 Nf6 31.ef6 Ba3 (31...Qa3+-) 32.h6 (32.h6 Qc2 33.h7 Qh7 34.Qh7+-) 1–0. Ernst,S (2600) – Gutmann,A (2070), 4th Paleohora Open, 2011. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 b6 5.c3 Nh6)

5.bc5 bc5

6.Ba3 Qa5 7.Be2 Nc6 8.0-0 Nh6 9.d4 Nf5 (9...cd4 10.Bf8 Rf8 11.Nbd2=+) 10.c3 cd4 11.Bf8 Rf8 12.g4 Nh6 13.cd4 Ng4 14.Nc3 (14.Qc2 Bd7=+) 14...Bd7 (14...Qc3 15.Rc1 Qa5 16.Rc6 Qa2 17.Qd3=+) 15.Nb5= f6 16.Qc1 (16.Qd3 fe5 17.Qh7 0-0-0=) 16...Ke7 (better 16...a6!? 17.Nd6 Ke7-/+) 17.Ng5= Nh6?? (better 17...fg5 18.Qg5 Kf7 19.Qg4 Kg8=) 18.Qc5+- Ke8 19.Nd6 Ke7 20.Nf5 Kd8 21.Qf8 Kc7 22.Ne6! Be6 23.Qd6 Kc8 24.Qc6 (24.Rac1 Bf7 25.Qc6 Kd8 26.Qa8 Kd7 27.Qc8) 24...Kd8 (24...Qc7 25.Nd6 Kb8 26.Rfb1 Qb6 27.Rb6 ab6 28.Qb6) 25.Qa8 (25.Qd6 Bd7 26.Qe7 Kc8 27.Rfc1 Qc3 28.Rc3 Bc6 29.Rc6 Kb8 30.Rb1) 25...Kd7 (25...Kc7 26.Rfc1 Qc3 27.Rc3 Kb6 28.Rb1 Ka5 29.Qa7) 26.Qb7 (26.Rab1 Qc5 27.Rb7 Kc6 28.Ra7 Kb6 29.Qb7) 26...Ke8 27.Qe7 1–0. Themelis,G (1920) – Koulis,Vasilis Iosif, 6th Ideon Andron Op, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Ba3 f6 7.d4 (7.Nc3 a6=) 7...Nd7 8.Be2 (8.c3 fe5 9.de5 Qc7=) 8...fe5 9.de5 Nh6 (9...Qc7 10.Bb2=+) 10.0-0 Nf7 11.Bb5 Qc7 Increases the pressure on e5 (11...Be7 12.c4 Rb8 13.Nc3=+) 12.Re1 Be7 13.Nc3 (13.c4 d4=) 13...Bb7 14.Rb1 0-0 15.Bd7 Qd7 16.Ne4 Rac8 17.c4 d4 (17...Rfd8 18.cd5 Bd5 19.Qc2=+) 18.Rb5 The pressure on c5 grows 18...Be4 19.Re4 Qc6 20.Qb1 Rfd8 21.Re1 Qa8 (21...Rd7 22.Qd3=) 22.Nd2 (22.Qd3 Qc6=) 22...Rb8 (22...a6 23.Rb3=) 23.f4 a6 24.Rb8 Rb8 25.Qe4 Nd8 26.Qa8 Ra8 27.Rb1 g5 (27...Rc8 28.Ne4+=) 28.g3 (28.fg5 Bg5 29.Nf3 Be3 30.Kf1 Rc8+-) 28...gf4= 29.gf4 Kf7 (29...Rc8!?=) 30.Ne4+- Rc8 31.Rb6 Kg6 32.Kf2 (32.Ra6 Kf5 33.Nd6 Bd6 34.ed6 d3+-) 32...Kf5 (32...Rc6 33.Rb8 Nf7 34.Rg8 Kf5 35.Kf3 Ne5 36.fe5+-) 33.Kf3 Nc6 34.Nd6 (better 34.Ra6 h6 35.Ng3 Kg6 36.Ke4+-) 34...Bd6= 35.ed6 e5?? (better 35...Na5 36.Bc5 d3 (36...Rc5?? 37.d7 Nc4 38.d8Q Nd2 39.Kg2+-; 36...Nc4? 37.d7 Rd8 38.Rb7+-) 37.Ra6 Rc5=) 36.d7+- (36.Bc5?! Nd8 37.d7 Rc5=+) 36...e4 37.Kf2 Rd8 38.Rc6 Rd7 39.Rc5 (better 39.Bc1!? Rb7 40.Rc5 Kg4 41.Rg5 Kh4 42.Ba3+-) 39...Kf4+- 40.Rd5 Rf7?? (40...e3 41.Ke2 Rd5 42.cd5 Ke5+-) 41.Bd6+- Kg4 42.Ke2 (42.Kg2 Rf3 43.Bg3 Rf5 44.Rd4 Ra5 45.Re4 Kf5+-) 42...Rb7 (42...Rf3 43.Rd4 Kf5 44.c5+-) 43.Rd4 Rb2 44.Rd2 Rb7 (44...Rb1 45.c5 Kf5 46.Rc2+-) 45.Ke3 Kf5 46.c5 Rb1 47.Rd5 Ke6 48.Re5 Kd7 49.Re4 Kc6 (49...Re1 50.Kd3 Re4 51.Ke4+-) 50.Ra4 Kb5 51.Ra3 (51.Rh4 Ra1+-) 51...Re1 (51...a5 52.Kd4+-) 52.Kd2 Rg1 53.Rb3 Kc6 (53...Ka5 54.c6 Rg6 55.c7 Rd6 56.Rd3+-) 54.Rb6 Kd5 55.Ra6 1–0. Hernandez Garcia,M (2015) – Insa Alfonso,Pablo, Open Bali A Benidorm ESP, 2003. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Bb5 Bd7 7.Bd3 Nc6 8.0-0 (8.c4 g5 9.cd5 ed5=+) 8...Nge7 (8...g5 9.Be2=+) 9.Re1 Ng6 10.Nc3 d4 11.Bg6 hg6 12.Ne4 Qc7 13.Ng3 Nb4 14.d3 Ba4 15.Re2 Nd5 (15...c4 16.dc4 d3 17.Re4=+) 16.Qd2 Be7 17.Ne4 0-0 (17...Rb8 18.a3=+) 18.c4 dc3 19.Nc3 Bc6 20.Ba3 Nc3 21.Qc3 Exerts pressure on the isolated pawn 21...Bf3 22.gf3 Rfd8 23.Re4 Rac8 24.Rc4 Qb7 25.Kg2 Qd5 (25...Rd5 26.Rd1=+) 26.Rc1= Qd3 27.Qd3 Rd3 28.Bc5 Bc5 29.Rc5 Rc5 30.Rc5 Kf8 31.Ra5 Rd7 32.Kg3 Ke8 33.f4 Kd8 34.Rc5 Rc7 35.Rb5 Kc8 36.Rb3 Rc2 37.Ra3 Kb7 38.Rb3 Kc7 39.Ra3 Kb6 40.Rb3 Kc7 41.Ra3 Kb6 42.Rb3 Kc7 ½-½. Grove,Michael (2115) - Walker,Da (2270), 4NCL Online Div1, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Bb5 Bd7 7.Bd7 Nd7 8.0-0 Nh6 9.c3 Be7 10.d4 (10.d3 Nf5=) 10...Nf5=+ 11.a4 0-0 12.Na3 a6 13.Nc2 Nb6 14.dc5 Bc5 15.Ncd4 Nh4 16.Nc6? (better 16.Ng5!? Bd4 17.cd4=) 16...Nf3-/+ 17.Qf3 Qd7 18.Nd4 Na4 19.Qg3 Nb6?? (better 19...Rfc8-/+) 20.Bh6+= f6? (better 20...g6 21.Bf8 Bf8+=) 21.Qg7?? (better 21.Ne6 Rfc8 22.Ng7+-) 21...Qg7-/+ 22.Bg7 Kg7 (better 22...Bd4 23.Bf8 Bc3-/+ (worse 23...Be5 24.Bc5 Nc4 25.Bd4=)) 23.Ne6= Kf7 24.Nc5 The isolani on a6 becomes a target 24...fe5 25.Ra6 (25.Na6!? Rfc8 26.Rfb1=) 25...Ra6=+ 26.Na6 Rc8 27.Rc1 (27.Rb1 Na4=+) 27...d4-/+ 28.c4 Rc4 (28...Nc4 29.f3-/+) 29.Rc4 Nc4 30.Kf1 Kf6 (30...Ke6 31.Nc5 Kd5 32.Nd7-/+) 31.Nc5=+ Kf5 32.f3 Nd6 (32...Ne3 33.Kf2-/+) 33.Ke2 Nc4 (33...Nb5 34.Ne4=+) 34.Ne4 (34.g4 Kg6=) 34...Ne3 35.g3 ½–½. Zuleta,Juan Esteban (1800) – Wagner,Alejandro, Cali COL, Valle Open (m), 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 c4 7.d3 cd3 8.Bd3 Qa5 9.0-0 Ba6 10.Re1 Bd3 11.Qd3 Qa6 12.Qd1 Bc5 13.a4 Ne7 14.Na3 0-0 15.Qc2 h6 16.Nb5 Qc8 17.a5 a6 18.Nbd4 Qc7 19.Qd3 Nbc6 Attacking the isolated pawn on a5 (19...Nec6 20.Nb3 Nd7 21.c4=+) 20.Nb3= Ba7 21.Ba3 Rfe8 22.Bd6 Qc8 23.c4 (23.Rec1 Rd8+=) 23...dc4= 24.Qc4 Nd4 25.Qc8 (25.Qd3 Qc2 26.Red1 Nf3 27.Qf3 Bf2 28.Kh1 Ba7 29.Be7 Rab8=) 25...Nf3=+ (25...Rac8?? 26.Nfd4 Nc6 27.Nc6 Rc6 28.Rac1+-) 26.gf3 Rac8 (26...Rec8? 27.Be7 Rab8 28.Rab1+-; 26...Nc8?! 27.Rac1=) 27.Rac1 Nd5 28.Bc5 Bc5 29.Rc5 (29.Nc5 Rc6 30.Nd7 Rc1 31.Rc1 Rd8-/+) 29...Rc5 30.Nc5 Rc8 31.Na6 Ra8 32.Nc5 Ra5 33.Nd3 Ra3 34.Rd1 Kh7 35.Rd2 Kg6 36.h3 h5 37.Kh2 h4 38.Ne1 Kf5 39.Re2 (39.Ng2-+) 39...g5 40.Nc2 Rd3 41.Ne3 Ne3 (41...Ke5!? 42.Nd5 Kd5 43.Kg2-+) 42.fe3 Ke5 43.Kg2 Ra3 44.Kf2 Kf5 45.Rb2 e5 46.Rc2 Ra1 47.Rb2 Rh1 48.Kg2 Rc1 49.Kf2 Rc5 50.Ra2 e4 51.fe4 Kg6 52.Ra6 Kh5-+ 53.Rf6-+ 0–1. Zajdela,Karel (1940) – Samovojska,D (2190), 12th Hum na Sutli Open (5), 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 d4 7.cd4 cd4 8.Qa4 Bd7 9.Qd4 Nc6 10.Qf4 Nb4 11.Na3 Rc8 12.Be2 Nd5 13.Qg3 Nh6 14.Nb5 Nf5 15.Qg4 a6 16.Nbd4 h5 (16...Nd4 17.Nd4 (worse 17.Qd4 Nb4 18.0-0 Nc2-/+) 17...Qb6 18.Nb3+=) 17.Qe4+/- Nd4 18.Nd4 (worse 18.Qd4 Nb4 19.0-0 Nc2-/+) 18...Bc5 (better 18...Qb6 19.0-0 Be7+/-) 19.Nf5 (better 19.Ba6!? Rb8 20.Nb3 Bf2 21.Kf2 Qb6 22.d4 Qa6 23.Nc5+/-) 19...0-0 20.Ng7 (20.Nd6!? Bd6 21.ed6+=) 20...Kg7=+ 21.g4?? (21.Ba6!? Ra8 22.Bd3-/+) 21...h4 (21...Nb4 22.gh5 Nc2 23.Kd1 Na1 24.Rg1 Kh8 25.Qf4 Ba4 26.Qa4 Bf2 27.Rf1-+) 22.0-0? (22.Bd3 Rh8 23.Ba6-+) 22...Bc6-+ 23.Bf3 (23.Qc4 Qb6 24.h3 Bd4-+) 23...Ne7 24.Qf4 Ng6 25.Qf6 Qf6 26.ef6 Kf6 27.Bc6 Rc6 28.Bb2 Ke7 (28...Kg5 29.d4 Ba7 30.h3-+) 29.g5 Rfc8 30.Bf6 Ke8 31.d4 Be7 32.f4 (32.Be7 Ne7 33.Rfe1 Rd6-+) 32...Bf6 33.gf6 Nf8 (better 33...Rd8!? 34.Rad1-+) 34.f5 Nd7 (34...Kd7 35.Rf4-+) 35.Rae1 Kf8 36.a4 (36.Re4 Nf6 37.Rh4 Ke7 38.fe6 fe6-+) 36...ef5 37.Rf5 Rf6 38.Rd5 Rg6 39.Kh1 Nf6 40.Rc5 Rc5 41.dc5 Nd7 42.Re4 Nc5 (42...h3!? 43.Rc4 Rf6 44.Kg1-+) 43.Rh4 Nd3 44.h3 Ke7 45.Rh5 Nf4 46.Re5 (46.Rh4 Nd5-+) 46...Re6 47.Rf5 Nd3 (47...Nh3 48.Kg2 Rh6 49.Re5 Kf6 50.Ra5-+) 48.Kg2 Re5 49.Rf1 (49.Re5 Ne5 50.Kg3 Kf6-+) 49...Nc5 (49...Re4 50.a5-+) 50.h4 (50.Rf4 Re2 51.Kf3 Ra2-+) 50...Na4 51.Kh3 Nc5 52.Kg4 Ne4 53.Kf4 Re6 (53...Kf6 54.Rd1-+) 54.Ra1 Nf6 55.Kg5 Re5 56.Kf4 Rh5 57.Ra6 Rh4 58.Kg5 Rh5 (58...Rh2 59.Ra1 Rf2 60.Ra4-+) 59.Kf4 Rd5 60.Ke3 Rd6 61.Ra7 Ke6 62.Kf4 Nd5 63.Kg4 f6 (63...f5 64.Kf3-+) 64.Ra8 Ke5 65.Rf8 Ne3 (65...Re6 66.Rc8-+) 66.Kf3 Nf5 67.Re8 Re6 68.Rc8 (68.Rd8 Nd4 69.Ke3 Nc6-+) 68...Nd4 69.Kg4 (69.Ke3 f5-+) 69...f5 70.Kh5 (70.Kg3 f4 71.Kf2 Rb6-+) 70...Ke4 71.Ra8 f4 72.Kg5 f3 73.Ra2 Re8 74.Rb2 Rf8 75.Rb8 (75.Rf2-+) 75...Rb8 (75...Rb8 76.Kg6 f2 77.Kg5 Rg8 78.Kh6 f1Q 79.Kh7 Qf7 80.Kh6 Qg6) 0-1. Leszko,Bence (2305) - Goryachkina,A (2580), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Bd7 7.d4 Nc6 8.Ba3 Qa5 9.dc5 (9.Bc5 Bc5 10.dc5 f6=) 9...Bc5 (9...Rb8 10.Qc1=+) 10.Bc5= Qc5 11.Bd3 f6 12.Qe2 Nge7 13.0-0 0-0 14.Nbd2 (14.ef6 Rf6 15.c4 Ng6 16.Bg6 Rg6=) 14...Qc3=+ 15.Rfc1 Qb4 16.Rab1 (16.ef6 Rf6 17.Nb3 Rd8=+) 16...Qf4 17.Rb7 Rad8 18.g3 Qh6 19.ef6 (19.Nb3!?-/+) 19...Qf6 (19...gf6? 20.Rd7 e5 21.Rd8 Rd8 22.Bb5+-) 20.Bb5 e5 21.Bc6 Nc6 (21...Bc6?! 22.Re7 Qe7 23.Rc6=) 22.Nb3? (better 22.Qe3-+) 22...Qf3 (22...Qf3 23.Qf3 Rf3 24.Rd7 Rd7 25.Rc6 Rdf7-+) 0–1. Makhmudov,Shukhrat (2110) – Kazhgaleyev,M (2590), 11th Agzamov Mem, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Bd7 7.d4 Nc6 8.Be2 Nh6 (8...Nge7 9.0-0=) 9.Bh6 gh6 10.0-0 c4 (10...Rb8 11.Qd3=) 11.Qc2+= Bg7 12.Nbd2 0-0 13.Rfe1 (13.Rab1 Qc7+=) 13...Rb8 14.Nf1 (14.Rab1 Qa5=) 14...f6 15.ef6 Qf6 16.Ng3 Be8 (better 16...Qg6 17.Qc1 Qf7=) 17.Rab1?? (better 17.Bd1=) 17...Bg6-+ 18.Qa4 Rb1 19.Rb1 Bb1 (19...Nd4 20.Rc1 Be8 21.Qa7 Nb5-+ (21...Nf3?! 22.Bf3 Qg5 23.Qe3-/+)) 20.Nh5?? (better 20.Qc6 Qf7 21.a4-+) 20...Qf7 21.Ng7 Kg7 (better 21...Nd8 22.Nh5 Qh5 23.Qa7 Qf5-+) 22.Qc6 Be4 (22...Bd3 23.Bd3 cd3 24.Qa6-+) 23.Qd6 (23.h3 Rb8 24.Qd6 Rb1 25.Kh2 Rb2-+) 23...Bf3 24.Bf3 (24.gf3 Qf5 25.Kf1 h5-+) 24...Qf4 25.Qf4 (25.Qa3 Qd2 26.h3-+) 25...Rf4 26.Kf1 Rf7 0–1. Stenman,Christoffer – Guglielmi,Riccardo, Deltalift Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Nc3 Ba6 7.Ba6 Na6 8.Rb1 Ne7 9.d3 (9.0-0 Rb8+=) 9...Nc6 10.0-0 Be7 11.Bd2 0-0 12.Qe2 Rb8 13.Rb8 Nab8 14.Rb1 Nd7 15.Qe1 (15.Bf4 Qa5 16.Qe1 Rb8 17.Rb8 Ndb8=+) 15...a6 16.Bf4 Qc7 e5 draws heavy fire 17.h3 (17.Nd1!?=) 17...Nd4-/+ 18.Rb2 (18.Nd4 cd4 19.Ne2 Qc2 20.Nd4 Qd3-/+) 18...Nf3 19.gf3 Rb8 20.Qb1? (20.Rb3 d4 21.Nb1 Rb3 22.ab3 Bf6-+) 20...Bf8 (20...Rb4 21.Bg3 Ne5 22.Kg2-+) 21.Kg2 (21.Rb8 Nb8 22.Qe1 Nc6-+) 21...Rb2 (21...Rb4 22.Bg3 Ne5 23.f4-+) 22.Qb2 f6 (worse 22...Ne5 23.Nd5 ed5 24.Qe5 Qe5 25.Be5-/+) 23.Bg3 (23.Qa3 Nb8-/+) 23...fe5 24.Nd1 Bd6 25.Qc1 Nf6 26.Qg5 h6 27.Qh4 (27.Qe3 Kh8-+) 27...Qa5 28.Ne3 Qa2 29.Ng4 Ng4 (better 29...Be7!? 30.Be5 Kf7 31.c4-+) 30.Qd8-/+ Bf8 31.hg4 (31.fg4!? d4 32.Be5 Qd5 33.Qd5 ed5 34.Bc7-+) 31...d4-+ (31...Qc2?! 32.Be5 Qd3 33.Bd6=+) 32.Be5 Qd5 (32...Qc2 33.Bd6 Qd3 34.Qf8 Kh7 35.Be5+-) 33.Qb8 Kh7 (33...a5!?-+) 34.Bg3-/+ Kg8 35.Qb6 (35.Be5 a5-+) 35...a5 36.Qa6 (36.Qa5 g6=+) 36...Qd8 (better 36...g6!?-/+) 37.Qe6= Kh8 38.Be5 Qa8?? (38...h5!?=) 39.Qh6+= Kg8 40.Qe6 Kh8 41.g5 Qd8 42.Qf5 (better 42.g6 Qg5 43.Bg3 c4 44.Qh3 Qh6+-) 42...Be7 (42...Bd6 43.Qh3 Kg8 44.Qe6 Kh7 45.g6 Kh6 46.Bg7 Kg7 47.Qf7 Kh6 48.Qh7 Kg5+-) 43.Qf7 (43.Qf7 Qg8 44.Qe7+-) 1–0. Von Rahden,Arvid (2175) – Mueller,Dominik (2095), Oberliga Nord N9899, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Nc3 Nc6 7.Bb5 Bd7 8.0-0 Nge7 9.Re1 Nf5 10.Bd3 Nfd4 11.Nb5 (11.Nd4 cd4 12.Nb5 Rb8=) 11...Nb5 (11...Nf3!? 12.Qf3 c4-/+) 12.Bb5= Be7 13.c3 (13.Bc6 Bc6 14.d4 c4=) 13...0-0 (13...Ne5!? 14.Ne5 Bb5=+) 14.Bd3= c4 15.Bc2 h6 16.d3 f5 (16...Qa5 17.Bd2 cd3 18.Bd3=) 17.ef6 Bf6 (worse 17...Rf6 18.dc4 dc4 19.Qe2+/-) 18.dc4 (18.d4 Qa5 19.Qd2 Rae8=) 18...dc4 (better 18...Bc3!? 19.cd5 Ba1 20.de6 Be6 21.Re6 Nd4 22.Nd4 Bd4=+) 19.Re3 Qc7 20.Qe2 Ne7 21.Re6 Be6 (21...Nd5!? 22.Qe4 Be6 (22...Nc3?? 23.Qh7 Kf7 24.Ba3+-; worse 22...Bc3 23.Qd5 Be6 24.Qe6 Qf7 25.Qf7 Kf7 26.Rb1+/-) 23.Qh7 Kf7 24.Qg6 Ke7 25.Ba3 Kd8 26.Bf8 Nc3+=) 22.Qe6+= Rf7 23.Qe4 g6?? (better 23...Bc3 24.Ba3 Rf3 25.Qf3 Ba1 26.Qa8 Kf7+/-) 24.Qa8+- Kh7 25.Qe4 (25.Qe8!? Nf5 26.Bf5 gf5+-) 25...Bc3 26.Rb1 Nf5 27.Bf4 Qc5 28.Be3 Qc7 29.Qg4 Bg7 30.h4 h5 (30...Rf6 31.Bf4 Qc8 32.Rb8+-) 31.Ng5 Kg8 32.Qe4 Re7 (32...Rf6 33.Qe8 Bf8 34.Bf5 gf5+-) 33.Qd5 Kh8 34.Bf5 (34.Qa8 Qd8 35.Qd8 Re8 36.Qe8 Bf8 37.Qf8) 34...gf5 35.Qf5 (35.Qf5 Qh2 36.Kh2 Be5 37.f4 Bf4 38.Qf4 Kg8 39.Bd4 c3 40.Rb8 Re8 41.Re8; 35.Qa8 Qd8 36.Qd8 Re8 37.Qe8 Bf8 38.Qf8) 1-0. Bortnyk,Olexandr (2595) - Huzman,A (2560), PNWCC Online Blitz JP, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Nc3 Nc6 7.Bb5 Bd7 8.a4 a6 9.Bc6 Bc6 10.0-0 d4 11.Ne2? (11.Nb1 d3 12.Ne1 dc2 13.Qc2 Qd5=+) 11...Ne7 (better 11...Bf3!? 12.gf3 Qg5 13.Ng3 Qe5-+) 12.Ng3 (12.Nf4 Rb8=+) 12...Nd5 ½–½. Rahls,Peter (2320) – Lieb,H (2285), European Seniors, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Nc3 d4 7.Ne4 Qd5 (7...Nc6 8.Bb5 Bd7 9.Qe2=) 8.Bb5 (8.d3 Nc6 9.c4 Qd8+=) 8...Bd7= 9.Qe2 Bb5 10.Qb5 Nc6 11.d3 Rb8 12.Qa4 Qd7 13.Bf4 Rb4 14.Qa3 f5 (14...c4 15.Qc1=) 15.ef6=+ Nf6 16.Nf6 gf6 17.0-0 Kf7 (17...c4 18.dc4 Rc4 19.Qd3=+) 18.Bd2 Rb6 19.c3 (19.Rfb1 Nb4 20.Qc1 Rg8=) 19...Rg8 20.c4 e5 (20...Qb7 21.Kh1=+) 21.Ne1 (21.Rfb1 Nb4 22.Bb4 cb4=+) 21...f5=+ 22.Qa4 f4 23.Qd1 Ne7 (23...Qh3 24.Kh1 Qg4 25.f3=+) 24.Qh5+= Ng6 (better 24...Kf6!?+=) 25.Nf3+- Bd6 26.Ng5 (26.Qh7 Rg7 27.Qh5 Ke8+-) 26...Kf8 (26...Ke8 27.Rfe1+- (27.Qh7? Qh7 28.Nh7 Be7-+)) 27.Qh6 (27.Rab1 Be7+-) 27...Rg7 (27...Ke8 28.Rfb1+= (worse 28.Nh7 Bc7-/+; 28.Qh7? Qh7 29.Nh7 Be7-+)) 28.Nh7+- Kf7 29.Ng5 (better 29.Rfb1!?+-) 29...Kg8= 30.Rab1 Be7 31.Rb6 ab6 32.Ne4 Nh4 33.g3?? (better 33.Qh5=) 33…Qh3-+ (33...Qh3 34.Qe6 Qe6-+) 0–1. Simonsen,O (2180) – Simonsen,H (2150), ch–FAI, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 Ba6 7.Ba6 Qa5 8.c3 Qa6 9.Be3 cd4 10.Nd4 Nc6 11.Nc6 Qc6 12.0-0 Ne7 13.Qb3 Nf5 (13...Ng6 14.Bd4=) 14.Ba7= Be7 15.Bd4 0-0 16.a4 Rfb8 17.Qa2 Ra5 18.g4 (18.Nd2 Rba8=+) 18...Nd4-/+ 19.cd4 Rba8 20.Qb2 Ra4 21.Ra4 Qa4 22.Rc1 Qa7 23.Kg2 g6 24.Rc6 (24.Qd2!?=) 24…Rb8-/+ ½-½. Broz,Petr (1990) - Cizek,Jan, Ceske Budejovice Open, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 Ba6 7.Ba6 Qa5 8.Nbd2 Qa6 9.c4 dc4 10.0-0 (10.dc5 Bc5 11.Qc2 Bb4=) 10...Ne7 (10...cd4!? 11.Nd4 Nd7=+) 11.dc5= Nd5 12.Ne4 Nd7 13.Nd6 Bd6 14.cd6 0-0 15.Qe2 Rab8 16.Qe4 f6 17.ef6 Rf6 18.Ng5 Nf8 (18...Rg6 19.Qh4 N7f6 20.Rd1=) 19.Qd4 Qc6 (19...Rb6 20.Be3=) 20.Ne4 (20.Qa7 Ra8 (worse 20...Qd6 21.Ne4 Qb6 22.Nf6 gf6 23.Qa4+-) 21.Qd4 e5 22.Qe5 Re8+=) 20...Rg6 (20...Rf7!? 21.Be3 c3=) 21.Qa7+- Nf4 (21...Nd7!? 22.Re1 Ra8+=) 22.Bf4+- (22.Qb8 Qe4 23.f3 Qe2 24.Qf8 Kf8 25.Rf2 Rg2 26.Kh1 Qe1 27.Rf1 Qf1) 22...Qe4 23.Bg3 Rb7 (23...Rc8!?+-) 24.Qa8+- Kf7 (24...Qd5 25.Rfd1 Qb5+-) 25.Rab1?? (better 25.Rac1+-) 25...Qb1-+ 26.h4 Qb6 27.Rd1 (27.Kh2-+) 27...Rg3 28.d7 (28.Qb7 Qb7 29.fg3 c3 30.Rf1 Ke8-+) 28...Nd7 29.Kh2 (29.Qa4 Ne5-+) 29...Rd3 30.Re1 (30.Rf1-+) 30...Qf2 (30...Qf2 31.Qf8 Kf8 32.Rc1 Rb2 33.Rf1 Qf1 34.a4 Qg2) 0–1. Wippich,Markus – Holzapfel,J, NB Germany, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 cd4 7.Qd4 Bd7 8.Qd1 Ne7 9.Bd3 Ng6 10.h4 (10.0-0!?=) 10...Nc6 11.Qe2 Qc7 e5 draws heavy fire 12.h5 (12.Bg6!? hg6 13.a3-/+) 12...Nge5-+ (12...Nce5? 13.hg6 Ng6 14.Bg6 fg6 15.Ng5+-) 13.Ne5 Qe5 14.Qe5 Ne5 15.Bb2 Nd3 16.cd3 Rb8 17.Bd4 a6 18.0-0 (18.Nd2 f6 19.f4 Bd6-+) 18...f6 19.f4 Be7 20.Nc3 0-0 21.Rfb1 Rfc8 22.Kf2 Bd6 23.g3? (23.Rb8 Rb8 24.Be3 Rc8-+) 23...Kf7 (23...e5 24.Rb8 Rb8 25.fe5 fe5 26.Ba7-+) 24.Kf3? (better 24.Rb8 Bb8 25.Rb1-+) 24...e5 25.fe5 fe5 26.Nd5 (26.Ba7 Rb1 (26...Rc3?! 27.Bb8 Bb8 28.Rb8-/+) 27.Nb1 Rc2-+) 26...ed4 (26...Bc6 27.Rb8 Bd5 28.Kg4 Bb8 29.Rf1 Ke7 30.Bb2-+) 27.Nb6 Rc7 (27...Bc6!? 28.Kg4 Rf8 29.Nc4 Bd7 30.Kf3 Ke6 31.Kg2 Bc6 32.Kh3-+) 28.Nc4 Rb1 29.Rb1 (29.Nd6 Ke6 30.Rb1 Kd6-+) 29...Ke6 30.Re1 Kd5 31.Re4 (31.Nd6 Kd6 32.Ke4 Rc5 33.Kd4 Rh5-+) 31...Bc6 (better 31...Rc4 32.dc4 Kc4 33.h6-+) 32.Ke2 (32.Kg4 Rd7 33.Nb6 Kc5 34.Nd7 Bd7 35.Kh4 Bf5-+) 32...Kc5 (32...Bg3 33.Rg4 Re7 34.Kd1-+) 33.Re6 (33.Nd6 Be4 34.Ne4 Kb4 35.Kf3-+) 33...Bd5 (33...Bg3!? 34.a3-+) 34.Rd6 Bc4 35.Rd4 (35.Rd8 Ba2 36.Ra8-+) 35…Kd4 (35...Kd4 36.dc4 Rc4-+) 0-1. mistik123 (2425) - almasssss (2400), Casual Bullet game, lichess.org, 2022. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 cd4 7.Nd4 Ba6 8.Ba6 Qa5 9.Nd2 Qa6 10.a4 (10.c4 Nd7 (10...dc4? 11.Qf3 Nc6 12.Qc6 Qc6 13.Nc6+-) 11.Qe2 Qa4=) 10...Nc6 11.Nb5 (11.Bb2 Bb4 (11...Ne5? 12.Nb5 Qc6 13.Be5+-) 12.Qe2 Qe2 13.Ke2 A) worse 13...Ne5 14.Nb5 f6 15.Nc7 Kd7 16.Na8 Bd2 17.Be5 (17.Kd2?! Nc4 18.Ke2 Ne7+=) 17...fe5 18.Rab1+- (18.Kd2?! Nf6+-); B) 13...Nge7=) 11...Rc8 (better 11...Qb6=+) 12.Qe2 Qa5 13.0-0 a6 14.Nb3 Qd8 15.N5d4 Nge7 (15...Nd4 16.Nd4 Rc4 17.Nf3=) 16.Qa6+= Ne5 17.Na5 Ra8 18.Qb5 Qd7 19.Nb7 (19.f4 Ng4=) 19...N7c6 20.Nc6 (20.Be3=) 20...Qc6 (better 20...Nc6!? 21.Nc5 Qc8=) 21.Bf4+= f6?? (21...Qb5 22.ab5 Ra1 23.Ra1+=) 22.Na5?? (better 22.Be5 Rc8 23.Bg3+-) 22...Qb5+= 23.ab5 Bb4 (23...Ng6 24.Be3+=) 24.Be5 Ra5 25.Ra5 Ba5 26.Bd6 (better 26.Ra1!? fe5 27.Ra5=) 26...Kd7=+ 27.Ba3 (27.Bf4!?=+) 27...Rc8-/+ 28.Rb1 Bb6 29.Rb2 Bd4 30.Rb1 (better 30.Rb4 e5 31.b6-+) 30...Bb6?? (better 30...Rc2!? 31.Rf1 Kc7-+) 31.Rc1 (31.Rb2 e5 32.Bb4-/+) 31...g6 (31...Bc5 32.Bc5 Rc5 33.b6-+) 32.Kf1 e5 33.Ke2 Rc3 34.Bb4 Rc4 35.c3 Bc5 Black prepares d4 36.Rd1 (36.Bc5!? Rc5 37.Ra1-/+) 36...Bb4-+ 37.cb4 d4 38.Rb1 h5 (38...Kc7 39.Ra1-+) 39.Rb2 (39.Kd3 Rc3 40.Kd2 Kc7-/+) 39...Kd6 (39...Kc7 40.Ra2 Rb4 41.Ra7 Kb6 42.Ra6 Kb5 43.Rf6-+) 40.Kd3 Kd5 41.f3 (41.h4!?-+) 41...f5 Black prepares the advance e4 42.b6 e4 43.fe4 (43.Ke2 Rc6 44.b7 Rb6-+) 43...fe4 44.Ke2 (44.Kd2 Rc8-+) 44...Kc6 (44...Rc6 45.b7 Rb6 46.Kd1-+) 45.b7 Kb7 46.b5 Kb6 47.h3 h4 48.Kd2 Rc5 49.Rb4 Rd5 Black plans d3 50.Ke2 Ka5 51.Rc4 (51.Rb2 Rb5 52.Rd2 Rd5-+) 51...Kb5 52.Rc8 d3 (52...d3 53.Kd1 Re5-+) 0–1. Smrckova,S – Cecil,P (1965), 4th Pilsen Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 Ne7 7.c3 Nf5 8.Bd3 Ba6?? (better 8...Nc6=) 9.Ba6+- Na6 10.Qa4 Qd7 11.Qa6 cd4 12.cd4 Be7 13.0-0 0-0 14.Ba3 Rac8 15.Be7 Qe7 16.Nbd2 f6 (16...Rc2 17.Nb3+-) 17.Qd3 (17.Rac1 Rc1 18.Rc1 fe5 19.de5 g6+-) 17...Rc7 18.ef6 gf6 19.Rfe1 Qf7 20.Nf1 (20.Nb3 Rfc8+-) 20...Re7 (20...Rfc8 21.Qa6 Rc6 22.Qe2+-) 21.Ng3 Nd6 22.Rac1 Kh8 23.Nd2 h5 (23...Rb8 24.Rc6 Rb6 25.Rb6 ab6 26.Qa6+-) 24.Rc6 Rd8 25.Qf3 (25.Qa3 Red7+-) 25...h4 26.Qh5 (26.Nh5 Nf5 27.Nb3 Qe8+-) 26...Qh5 (26...Qh7 27.Qh7 Rh7 28.Ngf1+-) 27.Nh5 Ne8 (27...e5 28.Nf6 Ne4 29.Nde4 ed4 30.Rec1 de4 31.Rc7+-) 28.Rcc1 (better 28.Nf4!? Kg8 29.Rce6 Re6 30.Re6 Kf7+-) 28...Kh7 (28...Kg8 29.Nf3+-) 29.Nf4 Ng7 30.Nd3 (better 30.Nf3!? Kg8+-) 30...Kg6 31.f4 Kf7 32.Nf3 Rde8 (32...Nf5 33.Rc6+-) 33.Rc5 (better 33.Nh4!? Rb7+-) 33...Nf5 34.Rec1 Ne3 (34...Rb8 35.Rc7 Rb7 36.Rb7 Rb7 37.Rc6+-) 35.Rc7 (35.Nh4!? Rh8 36.g3 Rh5+-) 35...Nf5 36.Re7 Re7 37.Rc7 (37.Rc6 Re8+-) 37...h3 (better 37...Rc7 38.Nde1 Rc4-+) 38.Re7+- Ke7 39.g4 Nd6 40.g5 (40.Nf2 Ne4 41.Ne4 de4+-) 40...Ne4 41.gf6 (41.Nc5!? Nc3 42.Kf1 Na2+-) 41...Kf6 42.Nfe5 Kf5 43.Nd7 (43.Nc6 Nc3+-) 43...Nd2 (43...Nc3+-) 44.N7e5 (44.Kf2 Ne4 45.Ke3 Nc3+-) 44...Ne4 45.Kf1 Nd2 (45...a5 46.Ke1+-) 46.Ke2 Ne4 47.Kf3 Nd6 (47...Nc3 48.Nc6 Na2 49.Na7+-) 48.Kg3 (48.Nc6 Nc8+-) 48...Kf6 (48...Ne4 49.Kh3 Nc3 50.a3+-) 49.Kh3 Ke7 (49...Kf5 50.Nc6 Nb5 51.a4+-) 50.Kg3 (better 50.Nc6 Kf6+-) 50...Nf5 51.Kf3 Nd4 52.Kg4 Nf5 (52...Nb5 53.h4 Nc3 54.Nc6 Kf6 55.a3+-) 53.Kg5 Nh6 (53...a6 54.Nb4+-) 54.h4 (better 54.Kh6 Kf6+-) 54...Nf7 55.Kg6 Nh8 (55...Nd6 56.Nc6 Ke8 57.h5+-) 56.Kg7 Nf7 (56...a5 57.Nc6 Kd6 58.Na5 d4+-) 57.Nf7 d4 58.Nfe5 (58.h5 e5+-) 58...Kd6 59.Nf3 (59.h5 Kd5 60.h6 a6 61.h7 Ke4 62.h8Q Ke3 63.Qh1 Kd2 64.Qe1 Kc2 65.Qc1) 59...Kd5 60.Nd4! Ke4 (60...Kd4 61.Nc1 Combination). chilote (2370) - opperwezen (2715), lichess.org, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.Be2 Nc6 7.0-0 Nge7 8.Re1 Nf5 9.Bb5 Bd7 10.Bc6 (10.a4 Be7=) 10...Bc6=+ 11.d4 Qb6 12.c3 cd4 13.cd4 Bb4 14.Re2 Be7 (14...Qa6 15.Rb2 Ba4 16.Qf1=) 15.Ba3+= Ba3 16.Na3 0-0 17.Nc2 (17.Qd3 Bb7 18.Rc2 Rfc8=) 17...Ba4 18.Qb1 (18.Rc1 Rab8=+) 18...Qa6 (18...Qb1 19.Rb1 Rab8 20.Rb8 Rb8 21.g4=) 19.Rd2 (19.Qe1 Rfc8 20.Ne3 Ne3 21.Re3 Bc2=) 19...Rab8 20.Qe1 Bc2 (20...Rfc8 21.Rb1=) 21.Rc2= Qa4 22.Qd1 Rb4 23.a3 Rc4 24.Rc4 Qc4 25.Rc1 Qa6 26.Qb3 Rc8 27.Rc8 ½–½. Nielsen,NP (2160) – Christensen,St (2275), 50th TCh–DEN XtraCon, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.g3 Ne7 7.Bg2 Ba6 8.d3 c4 9.0-0 cd3 10.cd3 Nec6 11.Re1 Be7 12.d4 0-0 13.Nc3 Nd7 14.a3 (14.Qa4 Qc8=) 14...Nb6 15.Ne2 Rc8 16.h4 Na5 17.Bg5 h6 18.Be7 Qe7 19.Nf4 Rc3 Attacks the isolani on a3 20.Nh2 (20.Re3 Re3 21.fe3 Rc8=+) 20...Rfc8 21.Bf1 (21.Qg4 Bd3-/+ (21...Ra3?! 22.Nh5 g6 23.Nf6 Kg7 24.Qf4=)) 21...Bf1 22.Rf1 Ra3 23.Qg4 Nac4 24.Nh5 Qf8 25.Rfd1 (25.Ra3 Na3 26.Nf3 Nac4-+) 25...Ra1-+ 26.Ra1 a5 27.Qf4 Nd7 28.Ng4 Rb8 29.Qc1 (29.Ne3 Ndb6-+) 29...Kh8 30.Kg2 Rb3 31.Ra5?? (better 31.Nf4-+) 31...Na5 32.Qc7 Nb6 33.Ngf6 0–1. Lostuzzi,Manlio (2200) – Rasidovic,Sead (2360), Caorle op, 1989. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.g3 Ne7 7.Bg2 Nd7 8.0-0=.

6.g3 Ne7 7.Bg2 g6 8.0-0 Bg7 9.Ba3 (9.c3=) 9...Nbc6 (9...Nd7 10.c3=) 10.Re1 (10.Bc5!? Ne5 11.Ne5 Be5 12.d4+=) 10...Qa5= 11.Qc1 Bh6 (11...g5 12.Ng5 Be5 13.Bb2 Bb2 14.Qb2+=) 12.c4+= Nb4 13.Bb4 cb4 14.cd5 ed5 15.Qb2 0-0 16.a3 Nc6 17.Nd4 (17.Rc1 Qb6+=) 17...Nd4 18.Qd4 Attacks the isolani on d5 18...b3 19.Nc3 Increasing the pressure on the isolated pawn on d5 (19.Bd5 Rd8 20.Bf7 Kf7-+; worse 19.Qd5 Qd5 20.Bd5 Rb8=+) 19...Be6 20.Rab1 (20.Bd5 Rfd8 21.Qh4 Bd2 22.Be6 fe6=+ (22...Be1 23.Bf7 Kf7 24.Qh7 Ke8 25.Qg6 Ke7 26.Qf6 Ke8 27.Qc6 Kf7 28.Re1+-)) 20...Qa3 (20...Rab8!? 21.Nd5 A) 21...Qa3?? 22.Ra1 Qa1 23.Ra1+- (23.Qa1?! b2 24.Qb1 Bd2+-); B) 21...Bd2 22.Ne7 Kg7 23.Nc6+=; C) 21...Bd5 22.Qd5 Bd2=) 21.Nd5+= Bd5 22.Bd5 Rad8 23.e6 Bg7 24.ef7 (24.Qd3 fe6 25.Rb3 Qc5 26.Be6 Kh8=) 24...Kh8 25.Qc4 (25.Qe4!? b2 26.d3=) 25...b2= 26.Be4 (26.Re8 Rde8 27.fe8R Re8=+) 26...Qd6 (26...Rd2 27.Bd5-/+) 27.Bc2 (27.d3 Rd7=+) 27...Rc8 28.Qc8 Rc8 29.Re8 Qf8 30.Rf8 Rf8 31.Bb3 Rd8 32.Re1 (better 32.d3!?=) 32...Bf8-/+ 33.Ba2 Rd2 34.Kg2 Kg7 35.Re8 a5 36.Ra8 (better 36.Kf3-+) 36...a4! 37.Kf3 (37.Ra4 Rd1 Combination) 37...Rd1 38.Ra4 Ra1 (38...Ra1 39.Ra8 Ra2-+) 0–1. Jensen,Vagn – Holst,Per, Aarhus, 1975. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.h4 Ne7= 7.h5 (7.Nc3 a6=) 7...h6 (7...Nbc6 8.Nc3=+) 8.Nc3 (8.Bb5 Nbc6=) 8...Nec6 (8...a6 9.g3=) 9.Rb1 (9.Bb5 Be7=) 9...Nd7 (9...a6 10.Be2=) 10.Bb5 Qc7 e5 seems the pivot of the position 11.Qe2 (11.0-0 Be7=) 11...Nb6 (11...Nd4 12.Qd3=+) 12.a4 (12.0-0 Be7+=) 12...Bd7= 13.0-0 Be7 14.Re1 (14.a5 Na5 15.Ba6 0-0=+) 14...Rd8 (14...0-0 15.Ba3=+) 15.d3 (15.Bc6 Bc6 16.Nb5 Qd7=) 15...Qc8 (15...0-0 16.Bd2=) 16.Qd2 (16.a5!? Na5 17.Bf4=) 16...a6= 17.Bc6 Qc6 18.a5 Na8 (18...Na4!?=) 19.Qf4 Qc7 (19...0-0 20.Ba3=) 20.Bd2 (20.Qg4 Kf8+-) 20...Bc6 (20...0-0!?+=) 21.Qg3 Kf8 22.Ne2 (22.Rb2 Qc8+-) 22...d4 23.Nf4 Kg8 24.Qg4 (24.Rf1 Bb5+-) 24...Qd7+= 25.Ne2 (25.Kh2 Bb5+=) 25...Nc7 26.Ng3 (26.Rb2 Kh7+=) 26...Nd5= 27.Ne4 Kf8 (27...Kh7 28.Qg3=) 28.Qg3 (28.Bf4 Qc7+=) 28...Qc7 29.Nh2 (29.Rb3+=) 29...Nb4 (better 29...c4!?=) 30.Nc5+- Bc5 31.Bb4 Bb4 32.Rb4 Qa5 33.Reb1 Kg8 34.Qf4 Qa2 35.f3 (35.Rc1 Qa5 36.Rc4 Qb5+-) 35...Bb5 (35...Qc2!? 36.Rc1 Qe2=) 36.R1b2+- Qd5 (36...Qa5 37.Nf1+-) 37.Ng4 (37.Nf1 Kh7+-) 37...Rd7 38.Nf2 Kh7 39.Ne4 Rb8 (39...Rc8 40.Qg3+-) 40.Nd6 (40.Kf2 Kg8+-) 40...f6 41.Nb5 (41.Nc4!? fe5 42.Ne5+-) 41...fe5= 42.Nc7 Rc7 (42...ef4? 43.Nd5 Rb4 44.Nb4+-) 43.Qg4 Rbc8 (43...Rcb7 44.Qg6 Kh8 45.Rb7 Rb7 46.Rb7 Qb7 47.Qe8 Kh7 48.Qe6=) 44.Qg6 (44.Rb6!?+=) 44...Kh8= 45.Rb6 Exerts pressure on the backward pawn 45...Qa5 (45...Rc2?? 46.Rc2 Rg8 47.Re2+-) 46.Re6 ½–½. Kadas,Gabor (2280) – Rizsonkov,Vlagyimir, Nyiregyhaza op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Qa5

7.Ba3 Ba6 8.Ba6= Na6 (8...Qa6 9.Qe2=) 9.0-0 Ne7 10.d4 (10.c4 Rb8=) 10...Nc6 (10...Rc8 11.Bb2=+) 11.Qc1 Be7 12.c4 (12.Nbd2 0-0=) 12...cd4 (12...Nd4 13.Nd4 cd4 14.Be7 Ke7 15.Nd2=) 13.Be7= Ne7 14.Nbd2 Rc8 15.Nb3 Qb4 16.Qg5 dc4 (worse 16...Rc4 17.Qg7 Ng6 18.Nbd4=) 17.Nbd4 0-0 18.Rab1 (18.Rfb1 Qc5 19.Rb5 Qc7-/+) 18...Qc5 19.Rb7 (19.Rb5 Qc7-/+) 19...Rc7 20.Rfb1 (20.Rb5!? Qa3 21.Rbb1-/+) 20...c3-/+ 21.Rc7 (21.R7b5 Qc4 22.Nc2 Nd5-+) 21...Nc7-+ 22.h4 (22.Qe3 Qc4-+) 22...Nc6 23.Nc2 (23.Qf4 Qc4 24.h5 h6-+) 23...Nd5 (23...Qc4 24.Rb3-+) 24.Rb7 (better 24.Qg4-+) 24...Qc4 25.a3 (25.Qc1 Qa2 26.Qb1 Qc4-+) 25...Qe4 26.Qc1 (26.Nce1 Nf4 27.Kh2 h6-+) 26...Nf4 (26...Ne5 27.Ng5 Qh4 28.Ne1-+) 27.Qd1 Rd8 (better 27...Nd4! 28.Ncd4 Qb7 29.g3-+) 28.Rd7 Rf8 29.Nfe1?? (29.Rb7 Nd4 30.Ncd4 Qb7 31.g3-+) 29...Qe5 (29...Ne5 30.Ra7 Ng4 31.Nf3-+) 30.Qf3?! (30.Nd3 Nd3 31.Qd3 Qc5-+) 30...Nd5 (30...Nd4 31.Qe3 Nde2 32.Kh2-+) 31.Qd3 Qf4 32.Nf3 (32.g3 Qa4 33.Rb7 Rd8-+) 32...h6 (better 32...Qa4 33.Ne3 Qa3 34.Nd5 Qc1 35.Kh2 ed5 36.Ng5-+) 33.Qb5 (33.Ne3-+) 33...Qc1 34.Nfe1 (34.Kh2 Qc2 35.Qc6 Qb2 36.Rd5 ed5-+) 34...Nd4! 35.Nd4 Qe1 36.Qf1 Qd2 37.Qc4 (37.Nb3 Qb2 38.Nc1-+) 37...Nb6 (37...Nb6 38.Nb3 Qb2-+ (38...Nd7 39.Nd2 cd2 40.Qd4+=)) 0–1. Hanl,Frantisek (2090) – Hadzala,Daniel (2045), Praha Czech Republic, Summer Festival, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Ba3 Nc6!?-/+.

7.c4 d4 8.Bd3 Nc6 9.Be4 Bd7 10.Ng5 Qc7 11.f4 (11.Nh7? Qe5 12.d3 Rh7-+) 11...f5 12.Bf3 Be7 13.Nh3 Nh6 14.0-0 0-0 15.d3 Rab8 16.Nf2 Qa5 17.Qe2 Qa4 18.Na3 Nb4 19.Qd2 a6 (19...Bc6 20.Bc6 Nc6 21.Rb1=+) 20.Nd1 Kh8 21.Nb2?? (better 21.Nf2=+) 21...Qa3-+ 0–1. Capron,Daniel (2280) – Coupet,Pascal (2160), FRA–chT, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Bd3 Ba6 8.Qe2 (8.Bc2!?=) 8...Bd3=+ 9.Qd3 Be7 10.0-0 Nc6 11.Qe2 Rb8 12.d3 h5 13.c4 d4 14.Bd2 Qa4 15.Qe4 Kd7 16.Bg5 Nb4 (16...Rb2 17.Bf4=) 17.Nbd2+= Qc6 18.Rab1 (18.Qe2 Qc7+=) 18...f6 19.ef6 Qe4 20.Ne4 gf6 (20...Nf6 21.Ne5 Kc7 22.a3=) 21.a3 (21.Bd2 f5 22.Neg5 Bg5 23.Bg5 Rb6 24.Ne5 Kc8+/-) 21...Na6 (21...fg5!? 22.Ne5 Kc7=+) 22.Rb8 Nb8 23.Rb1 Na6? (23...Kc8 24.Bf4 Na6 25.Nh4+/-) 24.Bh4 (better 24.Rb7 Kc6 25.Ra7+-) 24...Kc6+= 25.Kf1 Rh7 26.Ke2 Rg7 27.Bg3 (27.Ng3 Rh7+=) 27...Nh6 28.Bb8 (28.Kf1 Nf5=) 28...Nb8 (worse 28...Rg2 29.Ba7 Nc7 30.Rb6 Kd7 31.Bb8+-) 29.Rb8 Nf5 (29...f5 30.Ng3 h4 31.Nh5 Rg2 32.Nf4=) 30.Rh8 h4 (better 30...Rg2 31.Rh5 Rg8=) 31.Nh4?? (better 31.Kf1+=) 31...Nh4-+ 32.Rh4 f5 (32...Rg2 33.Rh7 Bd6 34.Ra7+/-) 33.Rh6 fe4 34.Re6 (34.de4!? Kd7 35.g3-/+) 34...Kd7-+ 35.Ra6 ed3 36.Kd3 Rg2 37.Ra7 Ke6 38.Ra6 Bd6 39.f3 (39.Ke2 Rh2 40.Rb6 Rh3-+) 39...Rh2 40.a4 (40.f4 Rf2-+) 40…Rf2 0-1. Werner,Sebastian (1885) - Tichy,S (2185), 30th Czech Open B, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Be2 Nc6 8.0-0 Nge7 9.d4 Ba6 10.Ba3 Ng6 11.Ba6 Qa6 12.Re1 Rb8 13.Qd2 (13.Qc1 Rb5=+) 13...Be7 (13...Rb1!? 14.Rab1 Qa3-/+) 14.c4 (14.Bc5 Bc5 15.dc5 Qc4=) 14...dc4 15.Bc5 (worse 15.dc5 Rb1 16.Rab1 Qa3-+) 15...Bc5 16.dc5 0-0 17.Nc3 (17.Qc3!?=) 17...Rfd8-/+ 18.Qg5 Qa5 19.Ne4 Rd5 e5 seems the pivot of the position 20.Red1 (20.Rec1 Nce5 21.Ne5 Re5-/+) 20...h6 21.Qg3 Qa2 22.Re1 (22.Ned2!? Qc2 23.Rdc1-/+) 22...Qb2-/+ 23.h4 Nce5 (better 23...Rd3 24.Nd6 Nge5-+) 24.h5? (better 24.Ne5 Re5 25.Ra7-/+) 24...Nf3-+ 25.Qf3 Rb3 (25...Ne5 26.Qg3 Rb3 27.Qh4-+) 26.Qg4 (26.Qe2 Qe2 27.Re2 Rh5-+) 26...Ne5 27.Qf4 (27.Qh4 Nd3 28.Rf1-+) 27...Nd3 28.Qg4 (28.Qc7 Ne1 29.Re1 Qe5 30.Qa7 Qh5-+) 28...Ne1 29.Ra7 (29.Re1 Ra3 30.c6-+) 29...Rb8 30.c6 Rc8 31.Re7 Nd3 (better 31...Qa1 32.Kh2 Qe5 33.Kh3 Nd3-+) 32.Rf7 (32.Re6 Qb1 33.Kh2 Qb8 34.c7 Qc7 35.Kg1-+) 32...Kf7 33.Qg6 Kf8 34.g4 Qa1 (34...Nf4 35.Kh2 Rd3 36.Qf5 ef5 37.Nd2 Rh3 38.Kg1 Qd2 39.gf5 Qe1) 35.Kh2 Qe5 (35...Nf4 36.Nc5 Ng6 37.Nd7 Ke7 38.Nb6 Qe5 39.Kg2 Nh4 40.Kh3 Rd3 41.f3 Rf3 42.Kh4 Qe1) 36.Kg1 0–1. Rukhaia,K (2190) – Mkrtchian,L (2340), Open Batumi GEO, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Be2 Bd7 8.a4 Nc6 9.0-0 Nh6 10.d4 Be7 (10...Nf5 11.Bd3=) 11.Ba3 (11.Bh6!? gh6 12.Qc1+=) 11...0-0= 12.Qc2 Rfc8 13.Bd3 g6 (13...cd4 A) worse 14.cd4 Ne5 15.Bh7 Kh8 16.de5 Rc2 17.Bc2 Ba3 18.Na3 Rc8-/+ (18...Ba4 19.Nb1+-); B) 14.Bh7?! Kh8=; C) 14.Nd4?? Nd4 15.Bh7 Kh8-+; D) 14.Be7 Ne7 15.Nd4=) 14.Qd2+= Kg7 15.Qf4 Ng8 16.Rc1 cd4 (worse 16...Qa4 17.Nbd2 Qa5 18.Bc5+-) 17.Be7 Nce7 The isolani on a4 becomes a target 18.Ng5 (18.cd4 Rc1 19.Qc1 Rc8+= (19...Ba4? 20.Qa3+-)) 18...Be8 (18...f6 19.ef6 Nf6 20.Qe5=) 19.cd4 (19.Qd4 Nc6 20.Qe3 Qb6+=) 19...Rc1 20.Qc1 Rc8 21.Qe3 (21.Qd2 Qd2 22.Nd2 Rb8+=) 21...Nc6 22.Bb5 (better 22.Nf3=) 22...Nd4-/+ 23.Qd4 Bb5 (23...Qe1!? 24.Bf1 Rc1-/+) 24.Nd2=+ Be8 25.Qf4 (25.Ngf3 Qc3=+) 25...Rc2 26.Nf1 (26.Ngf3 Qc3 27.Rf1 a5-/+) 26...Rc4 27.Qf3 (27.Qg3 Ra4 28.Rc1 Ra1-+) 27...h6-+ 28.Nh3 Ra4 29.Rb1 Bb5 30.Qb3 (30.Qd1 a6-+) 30...Bf1 31.Rf1 Ra1 32.Qe3 (32.Qb2 Rf1 33.Kf1 Qb6 34.Qb6 ab6-+) 32...Qa6 33.Re1 (33.Rc1 f6-+) 33...Re1 (33...d4 34.Qe4 d3 35.Qe3-+) 34.Qe1 Qc4 35.g3 Ne7 36.Qa5 (36.f4 Qd4 37.Kg2 Nf5-+) 36...Nc6 37.Qc7 (37.Qa1 Qg4 38.Nf4 Qf5-+) 37...a5 (better 37...Nd4!? 38.Qa7 Nf3 39.Kg2-+) 38.Nf4 d4 39.Qd6 (39.f3 a4 40.Qd6 Qc1 41.Kg2 a3 42.Ne6 Kh7 43.Nf8 Kh8=) 39...a4 40.Kg2 Nb4 (40...g5 41.Nh5 Kg6 42.g4 Qd5 43.Qd5 ed5 44.f4-+) 41.Qd8? (41.Ne6 Qe6 (41...fe6?! 42.Qd7 Kg8 43.Qe8 Kh7 44.Qd7 Kh8 45.Qe8 Kg7 46.Qd7 Kf8 47.Qd8 Kf7 48.Qd7 Kf8 49.Qd8 Kf7 50.Qd7 Kf8=) 42.Qb4 Qd7-+) 41...Qc6 (41...Nd5 42.Kg1 d3 43.Ne6 fe6 44.Qd7 Kf8 45.Kg2 Qe4 46.Kg1 Qe1 47.Kg2-+) 42.Kh3 Nd5 43.Nd5 ed5 (43...ed5 44.Qb8 d3-+) 0–1. Hamm,N – Schenk,Andreas, Baden–Alsace mJ, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Be2 Ne7 8.0-0 Ba6 9.d4 (9.d3 Nd7=) 9...cd4 10.cd4 Be2 11.Qe2 Qa6 12.Nc3 ½–½. Zhukov,V (2235) – Alekseev,V (2440), Petroff Mem Open, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Nc6

7.Bb5 Qc7 8.0-0 a6 9.Ba4 Bd7 10.Bc6 Bc6 11.d4 Ne7 12.Ba3 Nf5 13.Nbd2 Be7 (better 13...Bb5 14.Re1 Rc8=) 14.Qe2?? (14.Bc5 Bc5 15.dc5 Bd7+=) 14...0-0 (better 14...cd4!? 15.Be7 dc3-+ (15...Qe7?! 16.Rfc1=+)) 15.Rfe1 (15.Bc5 Bc5 16.dc5 Qe7=) 15...Bb5=+ 16.Qd1 cd4 (better 16...Rfc8=+) 17.cd4?? (better 17.Be7 Qe7 18.cd4=) 17...Ba3-+ 18.Qb3 Qa5 19.Rab1 Rac8 20.g3 (20.g4 Nh6-+) 20…Rc3 (20...Rc3 21.Qd1 Bb4-+) 0-1. Philidor1792 (2080) - opperwezen (2845), lichess.org, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Bd3 Nge7 8.0-0 Ng6 9.Re1 Qc7 10.Bb5 Bd7 11.Qe2 (11.Bc6 Qc6 12.d3 Rb8=) 11...Be7 (11...c4 12.Bc6 Bc6 13.Ba3=+) 12.d4= cd4 13.cd4 a6 (better 13...Nb4 14.Bd7 Qd7=) 14.Ba4 (14.Bc6 Bc6 15.Ba3 Bb5=) 14...0-0 (14...Nce5 15.Bd7 Nd7 16.Qe3-/+) 15.Be3 (15.Bc6!? Bc6 16.Ba3=) 15...Nd4 16.Bd4 (16.Bd4 Ba4 Discovered attack; 16.Nd4 Ba4 Discovered attack) 16...Ba4 17.Nbd2 (17.Nc3 Qa5-/+) 17...Bb5 (17...Rfc8 18.Reb1-/+) 18.Qe3 Rac8 19.a4 Bc4 20.a5 (20.Rec1 Qd7-/+) 20...Bb5 21.Nf1 Bb4 22.Rec1 Qd7 23.Bb6 Rc1 24.Rc1 Rc8 25.h4 (25.Rb1 Rc3 26.Qd4 Rc4-/+) 25...Rc1-+ 26.Qc1 Qc6 27.Qg5 (27.Qc6!? Bc6 28.h5-+) 27...Be7-+ 28.Qe3 Nh4 29.Nh4 (29.Nd4 Qc4 30.Ng3 Ng6-+) 29...Bh4 30.g3 Be7 31.Kg2?? (31.Qd2-+) 31...d4 32.Qf3 Bf1 (32...Bf1 33.Kh1 Qf3 34.Kg1 Qg2) 0–1. Bogdanov,D (2105) – Stilliger,B (2355), Oz.com qualifier blitz, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 cd4 8.cd4 Bb4 9.Bd2 Qa5 10.Bb4 Nb4 11.Nbd2 Ba6 (11...Na2? 12.Qb3 Qc3 13.Bb5 Kd8 14.Qa2+-) 12.Rc1 (12.a3 Nc6=) 12...Ne7 (12...Bf1 13.Kf1 Qa2 14.Ra1=+) 13.Rc5 (better 13.Qb3!?=) 13...Qa2-/+ 14.Qb3 Qa1 15.Qb1 Qb1 16.Nb1 Bf1 17.Kf1 Kd7 18.Ke2 h6 (18...Rhc8 19.Rhc1-/+) 19.Nc3 Rhc8 20.Na4 Na6 (20...Nec6 21.Rb5-/+) 21.Rcc1 (21.Ra5 Rc2 22.Kd1 Rac8 23.Nc5 Nc5 24.Ra7 Nb7 25.Rb7 Kd8-/+) 21...Rab8 22.Rc8 Rc8 23.Ra1 Rc2 24.Kf1 Nc6 25.Ra3 (25.Ne1 Rd2 26.Nf3 Rd3-/+) 25...Kc7 (25...f6 26.Nc3 Nab4 27.Nd1-+) 26.Nc3-/+ Nab4 (26...Kb6 27.Na4 Kb7 28.Nc3-/+) 27.Nb5 Kb6 28.Nd6 Nd8 29.g3 (29.Ne8 g6-/+) 29...a5 30.Rb3 (30.Ne8 Rc1 31.Ke2 g5-/+) 30...Kc6 (30...f6 31.ef6 gf6 32.Kg2-/+) 31.Kg2 f5 32.Ne1 Rc1 33.Nd3 Nd3 34.Rd3 Nb7 35.Ne8 g5 36.Ng7 Nd8 37.Ra3 Kb5 38.Rb3 Kc4 39.Rb8 Nc6 40.Rc8 (better 40.Rh8!?-/+) 40...Kd4-+ 41.Ne6 (41.f4 Ke3 42.Ne6 d4-+) 41...Ke5 42.Nd8 Kd6 43.Nb7 (43.Nc6 Rc6 44.Ra8 Rc5-+) 43...Kd7 44.Ra8 (44.Rf8 a4 45.Rf5 a3 46.Rd5 Kc7-+) 44...Kc7 (44...Rb1 45.Na5 Ra1 46.Nc6 Ra8 47.Nd4-+) 45.Na5 Ra1 0-1. Braeuning,R (2240) - Bluebaum,M (2645), ch-GER Blitz, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 cd4 8.cd4 Bb4 9.Bd2 Qa5 10.Bd3 Ba6 11.Qe2 (11.Ba6 Qa6 12.Qe2 Qb6=) 11...Bd3 (11...Bd2 12.Nbd2 Qc3 13.Ba6 Qa1 14.Qd1 Qd1 (14...Qa2 15.Bb7 Ne5 16.Ne5+=) 15.Kd1 Rb8-/+) 12.Qd3= Nge7 13.0-0 h6 (13...0-0 14.Rc1=) 14.a3 Bd2 15.Nbd2 0-0 (15...Qa4 16.Rfc1+=) 16.Nb3 Qa4 17.Nc5 Qa5 18.Rab1 Rfb8 19.h4 (19.Rb7 Nf5 20.Rc1 Rb7 21.Nb7 Qc7+=) 19...Rb6 (better 19...Nd4!? 20.Nd4 Rb1 21.Rb1 Qc5-/+) 20.Rbc1 Rab8 21.h5 Qb5 (21...Rb2 22.Rc3=) 22.Qe3 (22.Qd2 Nd8=) 22...Qa5 (22...Nf5 23.Qd2=) 23.g4 (23.Nd7 Rb3 24.Nb8 Re3 25.Nc6 Nc6 26.fe3 Ne7=) 23...Rb2= 24.Kg2 Qb5 25.Qf4 Na5 26.g5 Nf5 27.gh6 gh6 (27...Nc4 28.Rg1 Nh6 29.Kh1+/-) 28.Nh4 Nh4 29.Qh4 Kh7 30.Kh2 Qe2 31.Nd7 Nc4 32.Nf6 (better 32.Rce1!? Qf3 33.Nb8 Rb8 34.Rg1+/-) 32...Kh8= 33.Qf4 Qd2 34.Qg3?? (34.Nd5 Qf4 (34...Na3 35.Qf6 Kh7 36.Qf7 Kh8 37.Qf6 Kg8 38.Ne7 Kh7 39.Qf7 Kh8 40.Ng6) 35.Nf4 Ne3=) 34...Qg5?? (better 34...Qd4 35.Ng4 Rg8-+) 35.Rg1 (35.Rc3 Qf5+=) 35...Qg3 36.Rg3 Rf2 37.Kh1 Rf5 (better 37...Rf4 38.Rd3 a6=+) 38.Rcg1+/- Rg5 39.Rg5 hg5 40.Rg5 Na3?? (better 40...Ne3 41.h6 Nf5+/-) 41.h6 Nc4 (41...Nc2 42.Rg7 Rb1 43.Kh2 Rh1 44.Kh1 Nd4 45.Rh7) 42.h7 (42.h7 Rb1 43.Kh2 Rb2 44.Kg3 Rb3 45.Kh4 Rh3 46.Kh3 Ne5 47.Rg8; 42.Rg7 Rb1 43.Kh2 Rb2 44.Kg3 Rb3 45.Kh4 Rh3 46.Kh3 Ne5 47.Rh7) 1-0. opperwezen (2820) - msb2 (2820), lichess.org, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Nge7 8.dc5 Ng6 9.Bb5 Bd7 10.Bc6 Bc6 11.Be3 Rc8 12.0-0 (12.Nbd2 Bb5=) 12...Be7 (12...Qc7 13.Bd4=) 13.Nbd2 0-0 14.Nb3 (14.Qe2 Qc7 15.Bd4 Ba4=) 14...Ba4 Exerts pressure on the isolated pawn (14...Qc7 15.Bd4=) 15.Qd4 Bb3 16.ab3 Bc5 17.Qd2 Qb6 18.Bc5 Rc5 19.Qd4 (better 19.Ra3!?=) 19...Rfc8-/+ 20.b4 Rc3 21.Ra7 Qd4 22.Nd4 Ne5 23.b5 R3c4 (23...Nc4 24.f4=+) 24.f4=+ Ng6 25.f5 (25.Nc6 Rc5 (25...Rf4?? 26.Rf4 Nf4 27.b6+-) 26.Nd4 Rb8=) 25...ef5 (25...Rd4!? 26.fg6 fg6=+) 26.Nf5= Rc1? (26...Rd8 27.b6 Rb4 28.b7+=) 27.Nd6 (better 27.b6 Rf1 28.Kf1+-) 27...Rf1= 28.Kf1 Rc1 (28...Rb8 29.Ke2 Nf4 30.Ke3 Ng2 31.Kd4=) 29.Ke2+= Rb1 30.Ra8 (30.Kd3 h6+=) 30...Nf8 31.Nc8 (31.Kd3!?+=) 31...g6 32.b6 Kg7 33.Ra7 Ne6 34.Rd7 (34.Kd2 Kf6=+) 34...d4 35.Kd2 Rb3 36.g3 Kf6 37.Rd6 Ke5 38.Rc6 Kd5 (38...h5 39.Kc2 Rb4 40.Kd3-/+) 39.Ne7 (39.Rd6 Ke4 40.Rd7 Nc5 41.Rf7 Rb2 42.Kc1 Rh2 43.Nd6 Kd5=+) 39...Ke4-/+ Black prepares the advance d3 40.Nc8 d3 41.Nd6?? (better 41.b7 Rb2 42.Kc3 Rb7 43.Nd6 Kd5 44.Nb7 Kc6 45.Na5 Kb5 46.Nc4-+) 41...Kd5-+ 42.Rc7 (42.Nc4 Nc5 43.Rc5 Kc5 44.Ne5-+) 42...Kd6 43.Rf7 Rb6 (better 43...Nc5!? 44.Ke3-+) 44.Kd3 Ke5 (better 44...h5!? 45.Kc3-+) 45.Rh7 Rd6 46.Ke2 Ng5 47.Re7 Kf5 48.Ra7 (48.Re8 Re6 49.Re6 Ne6-+ (49...Ke6?! 50.h4-+)) 48...Ne6 (48...Kg4 49.Ra8-+) 49.Kf2 (49.Ke3 Nc5-+) 49...Rd5 (49...Rd2 50.Kg1-+) 50.Kg2 (50.Ke3 Re5 51.Kd3 Re1-+) 50...Re5 (50...Rd2 51.Kg1-+) 51.Kh3?! (51.h4 Rc5-+) 51...Kf6 (51...Ng5!? 52.Kg2 Re2 53.Kh1-+) 52.Ra6 (52.Kg4-+) 52...Kf5 53.Rb6?? (53.Ra7 Ng5 54.Kg2 Re2 55.Kh1-+) 53...Ng5-+ 54.Kg2 Re2 55.Kf1 Rc2 (better 55...Rh2 56.Rb5 Kf6 57.Rb4-+) 56.Rb5? (56.g4 Kg4 57.h4 Kh4 58.Rg6 Kg4-+) 56...Kg4 (better 56...Kf6 57.h4 Ne4 58.Rb6 Kg7-+) 57.Rb4-/+ Kh3?? (better 57...Kf3 58.Rb3 Ke4-/+) 58.Ke1 (58.Rh4) 58...Rh2 59.Kd1 Kg3 60.Rb3 (60.Rb6 Rh6-+) 60...Kg2 (better 60...Nf3 61.Kc1-+) 61.Rb4 (61.Rb2 Kg1 62.Rb6 Rh6-+) 61...Kg1 (better 61...Kf3 62.Rb6 Rh6 63.Kd2-+) 62.Ke1 (62.Rb6 Rh6-+) 62...Rg2 63.Re4 (63.Rb3 Ne6-+) 63...Nf3 (63...Ne4 64.Kd1 Rd2 65.Ke1 Kh2 66.Kf1 Kg3 67.Ke1 g5 68.Kf1 Nc3 69.Kg1 Rd1) 64.Kd1 Rf2 (better 64...g5-+) 65.Re3. Nozdrachev,L (2370) - Parvanyan,Ashot (2435), Titled Arena Apr 3rd, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Qd7

7.a4 Ba6 8.Ba6 Na6 9.d3 Ne7 10.0-0 Nc6 11.Re1 Be7 12.Nbd2 0-0 13.Nf1 f6 (13...d4 14.cd4 Nd4 15.Be3=+) 14.Bf4= fe5 15.Be5 Bf6 16.Bf6 Rf6 17.Ne3 e5 (17...Raf8 18.d4=) 18.h3 (18.c4 d4 19.Nd5 Rf5=) 18...Re8= 19.Ng4 Rfe6 20.Rb1 h6 21.Qb3 Nc7 22.Qa3 Qd6 23.Nd2 Na5 (23...Rf8 24.c4=) 24.Ne3 (24.c4 dc4 25.Nc4 Nc4 26.dc4 Qc6+=) 24...Qc6 25.c4 dc4 26.dc4 Rd6 (26...e4 27.Qc3 Nb7 28.Nf5+-) 27.Qc3 Nb7 (27...Qa4? 28.Ne4 Nc4 29.Nc5+-) 28.Nf3 Rde6 29.Nf5 Nd6 30.Ne5 (30.Re5? Nf5 31.Rbe1 Re5 32.Re5 Re5 33.Qe5 Nd6-+) 30...Qa4 The isolani on c4 becomes a target (30...Re5 A) 31.Re5?! Nf5 32.Re8 Ne8=+ (worse 32...Qe8 33.Qa5 Ne6 34.Qa7+=); B) 31.Nh6 gh6 32.Re5+-) 31.Nd6 Rd6 32.Rb7 Ne6 33.Kh2 (33.Nd3 Nd4 34.Nc5 Re1 35.Qe1 Qc4 36.Rg7 Kg7 37.Qe7 Kg8 38.Qd6 Ne2 39.Kh2 Qf4 40.Qf4 Nf4+-) 33...Nd4 (33...Qa6 34.Nf7 Qb7 35.Nd6+-) 34.Ra1 (34.Nd7 Re1 35.Qe1 Re6+-) 34...Qc2+= 35.Rg7 Kg7 36.Qg3 Kf8 37.Ra7 Re7 38.Ra8 Re8 39.Re8 Ke8 40.Qg8 Ke7 41.Qf7 Kd8 42.Qf8 Kc7 43.Qe7 Kc8 44.Qd6 Qe4 45.Qc5 Kb7 46.Qd5 (46.Qd5 Qd5 47.cd5+-) 1–0. Christensen,Bo (2240) – Vovk,Oksana (2140), Copenhagen Chess Challenge, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Bd3 Ba6 8.Ba6 Na6 9.Qe2 (9.0-0 c4=) 9...c4=+ 10.d3 cd3 11.Qd3 Nc5 12.Qe2 Ne7 13.0-0 Nc6 (13...Rc8 14.Be3=+) 14.Nbd2 Be7 15.Ba3 0-0 16.Nd4 (16.c4 Rac8=) 16...Nd4 (16...Rac8 17.Qe3=+) 17.cd4= Na4 18.Be7 Qe7 19.Nb3 Rfc8 20.Qa6 Nc3 21.Nc5 Qe8 22.Qd3 Na4 23.Nb7 Rc3 (23...Nb2 24.Qg3 Rc7 25.Nc5=) 24.Qd2+= Qc6 25.Nd6 f6 (25...Nb6 26.Rfc1 Rc1 27.Rc1=) 26.Qf4+= Rf8 27.Rae1 (27.Qg4 Qd7+=) 27...f5 (27...Nb6 28.Rc1=) 28.Qg5 Qd7 29.Rb1 Nb6 30.Rfc1 Rc7 (30...Rc1 31.Qc1 Nc4 32.Nb7+=) 31.Rc7 (31.Rc5 Nc4 32.Rc7 Qc7+/-) 31...Qc7+= 32.Rc1 (32.a3 Rb8 33.g4 Nc4 34.Rb8 Qb8 35.gf5 Nd6 36.ed6 Qd6=) 32...Qd7 33.h4 Nc8 34.Nc8 (34.Nb5 h6 35.Qg6 Ne7+=) 34...Rc8= 35.Rc8 Qc8 36.Kh2 h6 37.Qg6 (37.Qe7 Kh7+=) 37...a5 (37...Kf8 38.Kh3=) 38.Qg3 (38.g4 fg4 39.h5 Kf8=) 38...Qc4 39.Qg6 Qc6 (39...Qc8 40.g4 fg4 41.Kg2=) 40.Qg3 (40.g4 fg4 41.h5 Kf8=) 40...Kh7 41.h5 Qe8 42.Qf3 Qa4 43.Qg3 Kg8 (43...Qe8 44.Qh4=) 44.Qg6 Qc6 45.Qg3 Qe8 46.Qf3 Kh8 (46...Qa4 47.Qc3=) 47.a3+= Qa4 48.Qe3 Qd1 49.f3 Qa4 (49...Qc2 50.Kg3=) 50.Qc3+= Qe8 (50...Qc4 51.Qd2+=) 51.g4 fg4 52.fg4 a4 53.Qf3 (53.Kg3 Qb5+=) 53...Qe7 54.Kg3 Kg8 (54...Qb7 55.Qf8 Kh7 56.Qf2 Qb3 57.Qf3=) 55.Qc3+= Kh7? (55...Qb7 56.Kf2=) 56.Qd3?? (better 56.Qc2 Kg8 57.Qa4+-) 56...Kh8 57.Qg6?? (better 57.Qe3+=) 57...Qa3-/+ 58.Kh4 (58.Kf2 Qf8 59.Ke3 a3-+) 58...Qe7-+ 59.Kg3 a3 60.Qc2 Kg8 (60...Qe8 61.Kf2 Qa8-+) 61.Qc8-/+ Kh7 (better 61...Kf7!? 62.Qc2 Qd7-/+) 62.Qc2= Kg8 63.Qc8 Kf7 64.Qc2 Qa7 (better 64...Qd7!?-/+) 65.Qg6= Kf8 66.Qe6 Qd4 67.Qd6 Ke8 68.Qe6 Kf8 69.Qd6 Ke8 70.Qe6 Kf8 ½-½. Leszko,Bence (2320) - Bykhovsky,Av (2400), Euro Online Blitz Quali, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Ba6 8.Ba6 Na6 9.0-0 Ne7 10.Na3 Nc6 11.Rb1 Rb8 12.Rb8 Nab8 13.Nc2 Be7 14.Ng5 (14.Bg5 Qd8 15.Be7 Qe7=) 14...0-0 15.Qd3 Bg5 16.Bg5 h6 17.Bd2 f5 (17...Qc7 18.Qg3 Kh8 19.a3=) 18.Rb1 Qc7 19.Ne1 (19.Qg3 Kh7+=) 19...Nd7= 20.Qg3 (20.Nf3!?=) 20...cd4=+ 21.Bh6 (21.Nd3!?=+) 21...Qe5-/+ (21...Nde5 22.Bf4 Rb8 23.Rc1 dc3 24.Qc3+-) 22.Bf4 Qe4 23.Nd3? (23.Rc1 dc3 24.Nf3 e5-+) 23...e5 (better 23...Nc5! 24.Bd6 Nd3 25.Bf8 Kf8 26.Qd6 Kg8-+) 24.Re1-/+ ef4 25.Qh3 Rb8 (25...f3 26.Re4 de4 27.Nc1-+) 26.Re4 (26.Kf1 f3 27.Re4 de4=) 26...de4-/+ 27.Ne1 Rb1 28.Kf1 Nce5 29.cd4? (better 29.Qf5 Nd3 30.Qd5 Kf8 31.Qa8 Kf7 32.Qd5 Kf6 33.Qd4 N7e5 34.Qe4 Re1 35.Qe1 Ne1 36.Ke1-+) 29...Nd3-+ 30.Ke2 Re1 (30...Ne1?! 31.Qf5 Nf6 32.Qc8 Kf7 33.Qc7 Kg6 34.Qf4=) 31.Kd2 Rd1! 32.Kc2 (32.Kd1 Nf2) 32...Rc1 (32...Nf2?! 33.Qh4 Rd4 34.Qf2-+) 33.Kd2 (33.Kb3 Rb1 (33...Nf2?! 34.Qh4-/+) 34.Kc3 Nb6-+ (34...Nf2?! 35.Qh4-+)) 33...Nb6 (33...Nb6 34.Qd3 Nc4 35.Kc1 ed3-+) 0–1. Christensen,J (2200) – Holst,Per (2200), Aarhus–C, 1985. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Ba6 8.Ba6 Na6 9.0-0 Ne7 10.a4 Nc6 11.Ba3 Be7 12.Qe2 c4 13.Be7 Ne7 14.Na3 0-0 15.Nb5 Nc7 16.Rfb1 Rfb8 17.Nd6 Nc8 18.Nb7 Na6 19.Qb2 Nb6 Attacking the isolated pawn on a4 20.Nc5 Qc8 21.Na6 Qa6 22.h4 h6 23.Qb4 (23.Qb5 Qc8=) 23...Nd7=+ 24.Qe7 Rb7 25.Nd2 Rab8 26.Rb7 Rb7 (worse 26...Qb7 27.Rb1 Qc8 28.Rb8 Nb8 29.Qa7+-) 27.Qe8 Nf8 28.Rb1 Rb1 29.Nb1 Qb7 30.Qb5 Qb5 (30...Qe7 31.g3=+) 31.ab5= Ng6 (31...f6 32.ef6 gf6 33.f4=) 32.g3+= Kf8 33.Kf1 Ke8 34.Ke1 Kd7 35.Kd1 Kc7 36.Kc2 Kb6 37.Na3 h5 38.Kb2 (38.Kd2 f6 39.ef6 gf6=+) 38...Ne7 39.Nc2 (39.Kc1 f6-/+) 39...Nf5 (39...Kb5 40.Ne3-/+) 40.Ne1 (40.Na3 Nh6-/+) 40...Kb5 41.Ng2 Nh6 42.Nf4 g6 43.Nh3 Kc6 44.Ka3 Kd7 45.Ka4 Ng4 46.Kb5 Ke7 (46...Kc7 47.Ka6-/+) 47.Ka6=+ f6 48.f4 Kf7 49.Ka7 Ne3 50.Ng1 fe5 51.fe5 g5 52.hg5 Kg6 53.Nh3 Nf5 (better 53...Nd1 54.Nf4 Kg5 55.Ne6 Kf5+-) 54.Nf4 (better 54.Kb7+-) 54...Kg5=+ 55.Ne6 Kg4 Black intends h4 56.Nf4 (56.Nc7 Ne7 57.Kb6 Kg3-+) 56...h4-/+ 57.gh4 Kf4 58.h5 Kg5 ½–½. Christensen,Bo (2295) – Rozentalis,Eduardas (2625), AS04 Centenary, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Ne7 8.Bd3 (8.dc5 Ng6+=) 8...Ba6= 9.0-0 Bd3 10.Qd3 Nbc6 11.Na3 Nf5 (11...Rb8 12.Rb1=) 12.g4 (12.Rb1 c4 13.Qd2 Be7=) 12...Nfe7 13.Rb1 h5 (13...Ng6=+) 14.h3 (14.g5 Ng6=) 14...Ng6 (14...hg4 15.hg4 Ng6 16.Nc2-/+) 15.Qa6 (15.g5 c4 16.Qe3 Rb8=+) 15...Rb8 16.Bg5 hg4 17.hg4 Be7 (17...cd4 18.Qc6 Qc6 19.Rb8 Kd7 20.Rfb1 Ba3 21.R1b7 Qc7 22.Rc7 Kc7 23.Rb3=) 18.Be7 Ke7 (worse 18...Nge7 19.Rb8 Nb8 20.Qb5=) 19.Nb5 Rh3?? (better 19...Nf4=) 20.Na7!+- Ra8 (20...Na7 21.Rb8 Discovered attack (21.Rb8 Deflection; 21.Rb8 Overloading); 20...Qa7 21.Qc6 Deflection (21.Qc6 Overloading)) 21.Nc6 (21.Nc6 Qc6 22.Qc6 Ne5 23.de5 Rh1 24.Kh1 Rh8 25.Kg2 Rd8 26.Rb7 Kf8 27.Qc7 Rd7 28.Qc8 Ke7 29.Rd7; 21.Qc6 Qc6 22.Nc6 Kd7 23.Rb7 Kc6+-) 1-0.Christiansen,Johan_Sebastian (2615) - Demidov,M (2515), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c3 Ne7

7.Bb5 Nec6 8.0-0 Be7 9.Qa4 Bd7 10.Qg4 Kf8 (10...0-0 11.Be2=) 11.Bc6 Bc6 12.d4 Nd7 13.Bg5 Qb6 (13...Bb5 14.Be7 Qe7 15.Rc1+=) 14.Nbd2 (14.Be7 Ke7 15.dc5 Qc7+-) 14...cd4 (14...Bg5 15.Qg5 Qa5 16.Nb3+-) 15.cd4 (15.Be7 Ke7 16.cd4 Rag8+-) 15...Bb5 (15...Ba3 16.Rab1 Bb5 17.Rb3+=) 16.Rfc1 (better 16.Be7!? Ke7 17.Rfb1+-) 16...Ba3+= 17.Rcb1 Qa6 18.Rb3 h6 19.Qh4 (19.Nb1 Bd6 20.ed6 hg5 21.Ng5 Nf6+=) 19...Rc8 (19...Ke8 20.Be3+=) 20.Ne1 (20.Nb1 Bc1 21.Nc3 Bg5 22.Ng5 Bc4=) 20...Nb6 (20...Bc4 21.Nb1 Bc5 22.Rg3=) 21.Qh3 Be7 (21...Bc1 22.Bf4=) 22.Be7+- Ke7 23.Ra3 Qb7 24.Rb1 a6 25.Rg3 Kf8 26.Qg4 g6 (26...Rh7 27.Rgb3+-) 27.Qf4 Kg7 28.Qf6 Kh7 29.Ndf3 Rhf8?? (better 29...Rhe8+-) 30.Ng5! Kg8 (30...hg5 31.Rh3) 31.Ne6! fe6 (31...fe6 32.Rg6) 32.Rg6 Kh7 33.Rh6 Kg8 34.Rh8 1–0. Bogdanov,D (2095) – Pimbert,Jerome, 5th Open Vins du Medoc FRA, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 c4 8.Ba3 Na6 9.Qa4 Qd7 10.Qd7 Bd7 11.Be2 Nc8 12.Bf8 Rf8 13.Na3 Nb6 14.Kd2 (14.Rb1 h6=) 14...Ke7 15.Rab1 Nc7 16.Bd1 f6 17.Rf1 Be8 18.h3 Bh5 19.g4 Bg6 20.Bc2 Bc2 21.Nc2 Na6 22.Nb4 Nb4 23.Rb4 (worse 23.cb4 fe5 24.Ne5 Rf4-/+) 23...Rab8 24.Rfb1 (24.Ke3!?=) 24...fe5=+ 25.Ke3 (25.Ne5 Rf2 26.Ke3 Rbf8 27.Rb6 ab6 28.Rb6 Kd8=+) 25...e4 (25...ed4 26.Nd4 Kd7 27.f4-/+) 26.Ne5=+ Rbc8 27.f3 ef3 28.Nf3 Rc7 29.a4 Kd6 30.a5 Nd7 31.Rb7 h6 (31...Re8 32.a6=) 32.a6= Nb6 33.Rc7 Kc7 34.Ne5 Kd6 35.Ng6 (35.h4 Rc8=) 35...Rf7 36.Ne5 Rc7 37.Rb4 Nd7 38.Nf7 Ke7 39.Ne5 Ne5 40.de5 Kd7 (40...Rd7=+) 41.Kd4 (better 41.Rb8!?=) 41...Kc6-/+ 42.Rb2 Rf7 43.Rb4?? (better 43.Ke3-/+) 43...Rf3-+ 44.Rb7 (44.Rc4 dc4 45.Kc4 Rh3 46.Kd4-+) 44…Rd3 0-1. Hirst,Joe (1630) - Davies,Sam (1705), 16th South Wales Int, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Nbc6 8.Ba3 Ng6 9.h4 h5 10.Bc5 (10.Bd3 Nf4 11.Bb5 Qb6= (11...Ng2? 12.Kf1 Bd7 13.Bc6 Ne3 14.fe3 Bc6 15.Bc5+-)) 10...Bc5= 11.Bb5 Qc7 12.dc5 Bd7 13.Bc6 Qc6 14.0-0 Qc5 15.Re1 Rc8 The isolani on c3 becomes a target 16.Re3 Qa5 17.Nbd2 Rc7 18.Nb3 Qa4 19.g3 Qg4 20.Qc2 Ne7 21.Nbd4 ½–½. juliangon (2645) – nii_sama (2500), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Nec6 8.a3 cd4 (8...Be7!?=+) 9.cd4+= Ba6 10.Ba6 Qa5 11.Bd2 (11.Nc3 Qa6 12.Rb1 Qc4+=) 11...Qa6= 12.Nc3 Be7 (12...Nd7 13.Qe2 Qe2 14.Ke2=) 13.Qe2 0-0 14.0-0 (14.Rb1!?+=) 14...Qe2=+ 15.Ne2 Nd7 16.Rfc1 Rfc8 17.Bb4 Bd8 (17...Nb4 18.Rc8 Rc8 19.ab4=+) 18.Nc3 (18.Bd6 Na5=) 18...Nb4 19.ab4 Rcb8 20.b5 Nb6 21.Ne1 (21.Ra6 Rb7=) 21...Nc4=+ 22.Nd3 Ba5 23.Nc5 (23.Rab1 Bc3 24.Rc3 a6-/+) 23...Bc3 24.Rc3 Rb5 25.Na6 (25.g4 a5-/+) 25...Rb2-+ 26.g3 (26.Rd3 Rc8-+) 26...Rc8 (26...Rd2!? 27.f4 Rd4 28.Nc5-+) 27.Nc5-/+ a5 28.Nd3 Rb5 29.Nc5 (29.g4 Rcb8-+) 29...h6 (29...Ne5 30.Ne4 Nc4 31.Nd2-+) 30.Rcc1 (30.Rac1 Rcb8-+) 30...Rcb8 (better 30...Ne5!? 31.Kg2-+) 31.Na6 R8b6 32.Nc5 Kh7 33.h4 h5 34.Na4 Rb8 35.Nc5 Rb2 36.Rd1 (36.Ne4 de4 37.Rc4 Rd2-+) 36...Rc2 37.Na4 (37.Nd3 Rb3-+) 37...Rb4 38.Nc5 (38.Rd3-+) 38...Nb2 39.Rdb1 Rd4 40.Nb3 Re4 41.Ra5 Nd3 42.Rd1 (42.Ra7 Kg6 43.Rf1-+) 42...Nf2 43.Rd2 Nh3 44.Kg2 Rd2 45.Nd2 Re2 (45...Re2 46.Kh3 Rd2-+) 0–1. Geronimi,Pierre_Francois (1960) – Song,Julien (2325), FRA–ch U18, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.d4 Nec6 8.Be2 Be7 9.0-0 0-0 10.Re1 (10.Na3 Nd7=) 10...Qb6 (10...Nd7 11.Qa4 Bb7 12.Na3=) 11.Bd3 (11.Nbd2!?=) 11...Ba6=+ 12.dc5 (12.Ba6 Na6 13.Nbd2=+) 12...Qc7 (12...Bc5 13.Be3-/+) 13.Ng5? (13.Na3!?=) 13...Bd3 (13...h6 14.Nf3-/+) 14.Qd3 Bg5 15.Bg5 Ne5 16.Qg3 f6 17.Bf6 Rf6 18.Re5 Nd7 19.Re1 Qg3 20.hg3 Nc5 21.Nd2 Nd3 22.Re2 Rc8 23.Rb1 (23.Nf3 Rc3 24.Re3 Rc1 25.Rc1 Nc1=+) 23...Rc3 24.Rb8 (24.Nf3 Rc4-/+) 24...Kf7 (24...Rf8 25.Rf8 Kf8 26.Re6-+) 25.Rb7-/+ Kg6 26.Nf3 Rc1 27.Kh2 Rf1 28.Ne5 (28.g4 h6 29.Nh4 Kh7-/+) 28...Ne5 29.Re5 R1f2 30.Ra7 R2f5 31.Re1 d4 (31...e5 32.Rd7 e4 33.Rd1-/+) 32.a4 (better 32.Rd7!? e5 33.a4 Rh5 34.Kg1-+) 32...Rd5-+ 33.a5 d3 34.Rd1 (34.Kg1 d2 35.Rd1 e5-+) 34...e5 35.a6? (35.Kg1 e4 36.Re7 Rd4-+) 35...Rfd6 (better 35...Re6 36.g4-+) 36.Ra8 (36.Kg1-+) 36...Rd8 (36...Ra5 37.a7-+) 37.Ra7? (better 37.Rd8 Rd8 38.Kg1-/+) 37...e4-+ 38.Re7 Rd4 39.a7 Kf6 (better 39...Ra4 40.Rf1 d2 41.Re6 Kg5 42.Re5 Kh6-+) 40.Rb7-/+ Ra8 41.Rf1? (better 41.Ra1 Rd6 42.Rb8 Ra7 43.Ra7=+) 41...Ke6-+ 42.Rff7 (42.Rb6 Kd5 43.Rf5 Kc4 44.Rc6 Kb4 45.Rb6 Kc3 46.Rc5 Kd2 47.Rc7-+) 42...d2 43.Rbe7 Kd5 (better 43...Kd6 44.Rd7 Kc5 45.Rc7 Kb6 46.Rb7 Ka6-+) 44.Rc7 (44.Rd7 Kc4 45.Rc7 Kd3 46.Rf1-+) 44...e3 45.g4 (45.Rcd7 Kc4 46.Rc7 Kb3 47.Rce7-+) 45...d1Q 0–1. Budimir,Boris (2270) – Konstantinov,Aleksandar (2015), International ch–Central Serbian Op A, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c4 d4

7.Bd3 Bb7 8.Qe2 (8.0-0 Nd7 9.Re1 Rb8=) 8...Qd7 (8...f5 9.Bc2=) 9.Be4 (9.0-0 Na6=) 9...Nc6 (9...Be4 10.Qe4 Nc6 11.d3=) 10.d3 Be7 11.0-0 f5 12.ef6 Nf6 13.Nbd2 (13.Bc6 Qc6 14.Re1 a5=) 13...0-0 (13...Ne4 14.Ne4 0-0 15.Bg5=) 14.Rb1 (14.Bc6 Qc6 15.Re1 Bd6+=) 14...Ne4= 15.Ne4 Rae8 (15...Rab8 16.Bg5=) 16.Bg5 (16.Rb5 Nd8=) 16...Ba8 (16...Rf5 17.Be7 Qe7 18.Rfe1=) 17.Rfe1 (17.Rb5 Rf5+=) 17...Qc7 (17...Bd6 18.a3+=) 18.Be7 Qe7 19.Neg5 Nd8 20.Rb8 (20.a3 Rf5 21.Ne4 Rf4+=) 20...Bf3 (20...Bb7 21.Qe5=) 21.Nf3+= Nc6 (21...Nf7 22.Rb5+=) 22.Rb5 (22.Re8 Re8 23.Qe4 Nd8+=) 22...Rf5 23.Qe4 Qd7 (better 23...Qd6!?+=) 24.g4+- Rf6 25.Rc5 e5 26.Ng5 (26.Qd5 Qd5 27.cd5 Rf3 28.dc6 Rd3+-) 26...Rg6 (26...g6 27.Qd5 Qd5 28.Rd5+- (worse 28.cd5 Nb4 29.Rd1 Na2=)) 27.h4 (27.h3 Rf8+-) 27...Rf8 28.f3 (28.Kf1 Qd6 29.Qd5 Qd5 A) worse 30.Rd5 h6 31.Ne4 Nb4=+ (worse 31...Rg4 32.Rd6 Nb4 33.Nc5=); B) 30.cd5+-) 28...Rf4? (better 28...Rh6+-) 29.Qd5+- Qd5 30.cd5 (worse 30.Rd5 h6 31.Ne4 Rf3=+) 30...Nb4 (30...Nd8 31.Re5 h6 32.Ne6 Rf3 33.g5 (33.Nd8?! Rg4 34.Kh2 Rf2 35.Kh3 Rfg2 36.Re8 Kh7=; 33.Nd4? Rg4 34.Kh2 Rd4-+) 33...Ne6 34.de6+- (34.Re6?! Re6 35.de6 hg5+=)) 31.Re5 Nd3 (31...Rf8 32.Ne6 Rb8 33.Rc7 (33.Nd4 Nd3 34.Nc6 Rb1 35.Kg2 Nc5 36.Ne7 Kf7 37.Ng6 Kg6=+) 33...Nd5 34.Ra7+-) 32.Rc8 Rf8 33.Ree8 Rgf6 34.Nh7! (34.Nh7 Kh7 35.Rf8 Rf8 36.Rf8+-) 1–0. Rahls,Peter (2255) – Strehlow,Horst (2110), Berlin GER, Herbst Open, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.g3 Bb7 8.d3 h6 (8...Nd7!?=+) 9.Bg2= Nc6 10.0-0 Qc7 11.Qe2 Nge7 12.Bd2 (12.Nbd2 Rb8=) 12...Ng6 The pressure on e5 grows 13.h4 Rb8 (worse 13...Nce5 14.Ne5 Qe5 15.Qe5 Ne5 16.Bb7+-) 14.h5 (better 14.Re1!?=) 14...Nge5-/+ 15.Ne5 Qe5?? (better 15...Ne5 16.Bb7 Rb7-/+) 16.Bc6+- Bc6 17.Qe5 Rb2 (17...Rc8 18.f4+-) 18.Ba5 (better 18.Qc7!? Bd7 19.Ba5 Be7+-) 18...Rb7 19.Na3 Be7 20.Rab1 Rb1 21.Rb1 0-0 22.Rb8 (better 22.Qc7 Bd8 23.Qa7 Bg5+-) 22...Bf6 (22...Bf3+-) 23.Rf8 Kf8 24.Qd6 Be7 25.Qc6 Kg8 26.Qe8 Bf8 27.Bd8 g6 28.hg6 fg6 29.Qg6 (29.Bf6 Kh7 30.Qf7 Bg7 31.Qg7) 29...Bg7 30.Bf6 Kf8 31.Qg7 Ke8 32.Qe7 1–0. Romanov,Dmitriy – Caliskan,Seha, Budva MNE, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.g3 Bb7 8.Bg2 Nc6 9.0-0 Qc7 10.d3 Nge7 11.Re1 Nf5 12.Nbd2 h5 13.h4 Be7 14.Ne4 f6 (14...Rb8!?=) 15.Rb1 Rb8 (15...Ne5?? 16.Ne5 fe5 17.Rb7+-) 16.ef6 gf6 17.Nf6 Bf6 18.Re6 Kf7 19.Rb7! Qb7 (19...Rb7 20.Ng5 Double attack; 19...Qb7 20.Ng5 Double attack) 20.Rc6! Qc6 21.Ng5 Bg5 22.Bc6 Bc1 23.Bd5 Ke7 24.Qc1 Rhf8 (24...Kd7 25.Qa3 Kd6 26.Qa6 Rb6 27.Qa7 Rb1 28.Kg2+-) 25.Qf4 (better 25.Qe1!? Kd8 26.Qa5 Rb6 27.Qc5 Nd6+-) 25...Rb1 26.Kh2 Rb2 (26...Kd7 27.Qe5 Rb6 28.Bg2+-) 27.Qc7 Kf6 28.Kg1 (28.Qc5 Rd8 29.Be4 Ne7+-) 28...Rb1 (28...Ra2 29.Qc5 Rd8+-) 29.Kg2 Rb2 30.Qc5 (30.Qa7?! Ne3 31.Kg1 Rb1 32.Kh2 Nd5 33.Qc5 Ne7+-) 30...Kg7 31.Qc7 Kf6 32.Qf4 Ke7 (32...Ra2 33.Kh3 Ke7 34.Qe5 Kd8 35.f4+-) 33.Kh3 (better 33.Qe5!? Kd8 34.Bf3 Rf7+-) 33...Re2 34.Be4 Nd6 (34...Ke6 35.f3+-) 35.Qe5 Kd7 1-0. Belkhodja,S (2415) - Lazo,A (2275), 3rd Juvisy IM, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.g3 Bb7 8.Bg2 Ne7 9.0-0 Nd7 10.d3 Qc7 11.Re1 Ng6 Now all is on e5 12.Nbd2 Rb8 13.Qe2 Be7 14.h4 Qc6 15.Rb1 h5 16.Ne4 Qc7 (16...Nde5?? 17.Ne5 Ne5 18.Bf4+-; 16...Nge5?? 17.Ne5 Ne5 18.Bf4+-) 17.Bg5 0-0 (17...a6 18.a4=+) 18.Be7 Ne7 19.Nfg5 Be4 20.Rb8 (20.Be4!? g6 21.Bg6 fg6 22.Ne6+=) 20...Rb8= 21.Be4 g6 22.f4 Qa5 23.Rc1 Qa3 24.Rc2 Rb1 25.Kh2 Qb4 26.g4 hg4 27.Qg4 Qe1 28.h5 Nf8 29.hg6 Nfg6 30.Nf3 Qh1 31.Kg3 Nf5 (better 31...Kf8!?=+) 32.Bf5+= ef5 33.Qg5 Rf1 34.Rf2 Rf2 35.Kf2 Qc1 36.Kg3 (36.Qf5?! Qf4 37.Qc8 Kg7 38.Qc5 Qe3 39.Kg3 A) worse 39...Qd3 A1) worse 40.Qd4 Qd4 41.Nd4 Ne5+=; A2) 40.Qa7 Ne5 41.Qb7 Qg6 (41...Nc4?! 42.Qd5=) 42.Kf2 Ng4 43.Ke1 Qe6 44.Kd2 Qe3 45.Kc2 d3 46.Kb1 Nf6-+; A3) 40.e6+-; B) 39...Qf4 40.Kg2 Qe3=) 36...Qe3 37.Qf5 Kf8 (37...Kg7 38.a4+-) 38.Qe4 (38.e6 Qe6 39.Qc5 Ne7 40.Ne5+- (40.Nd4?! Qe3 41.Kg2 Qd2 42.Kf3 Qd3 43.Kf2 Qd2 44.Ne2 Qa2+=)) 38...Qe4+- 39.de4 Ne7 40.Nd2 Nc6 41.a3 (better 41.Nb3 Nb4 42.Nc5 Na2 43.e6+-) 41...a5? (better 41...Na5+-) 42.Nb3+- a4 43.Nc5 Na5 44.Nd7 Ke7 45.Nb6 Nb3 46.Na4 d3?! (46...Nd2+-) 47.Kf2 Nd2 (47...Kd7 48.Ke3 d2 49.Nb2+-) 48.Nb2 1–0. Haba,Petr (2520) – Usmanov,Vasily (2385), Pardubice CZE, Czech Open–A, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.g3 Nd7 8.Bg2 Rb8 9.0-0 Ne7 10.d3 Ng6 11.Re1 Qc7 Now all is on e5 12.Qe2 Bb7 13.Nbd2 Be7 14.h4 h5 15.a4 Bc6 16.Ne4 (16.a5 a6=+) 16...Nde5 (worse 16...Nge5 17.Ne5 Ne5 18.Bf4=) 17.Ne5 Qe5 (17...Ne5 18.Bf4 Rc8 19.Bh3+/-) 18.Nf6 Bf6 (18...Kd8!? 19.Ne4 Qc7=+) 19.Bc6= Ke7 20.Be4 Rb6 21.a5 Rb3 22.Ba3 Qd6 23.Qd1 (23.Reb1 Rbb8+=) 23...Rhb8 24.Qh5 Ne5 25.Qe2 Nc4 (better 25...Kd8!?=) 26.dc4+/- d3 27.Qd2?? (better 27.Qh5 Bd4 28.Kg2+/-) 27...Bc3?? (better 27...Ba1 28.Ra1 Qd4-+) 28.Qg5+- f6 29.Qg7 Kd8 30.Qg8 Kc7 (30...Ke7 31.Qh7 Kd8 32.Qa7 A) 32...Be1 33.Bc5 (worse 33.Qc5 Qc5 34.Bc5 Bc3-/+) 33...Qd7 34.Bb6 (34.Re1?! Qa7 35.Ba7 Rb1 36.Rb1 Rb1 37.Kg2 d2+-) 34...R8b6 35.ab6 Bf2 36.Kf2 Qd4 37.Kf1 Qb6 38.Qa8 Qb8 39.Bd3+-; B) 32...Bd4+-) 31.Qf7+- Kd8 32.Qg8 Kc7 33.Qh7 Kc8 34.Qh8 (34.Bc5 Qc5 35.Bd5+- (35.Bd3?! Be1 36.Re1 f5+-)) 34...Kc7+= 35.Qh7 Kd8?? (better 35...Kc8=) 36.Qg8 ½-½. Souza,R (2090) - Ikejiri,Daniel Yoshito (2000), 14th American Continental, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.c4 Ne7

7.Nc3 Nbc6 8.cd5 ed5 9.Bb5 Bd7 10.0-0 Nb4 (10...Rb8 11.Rb1+=) 11.d4+= c4 (11...Rc8 12.a3 cd4 13.Nd4 (13.ab4?! dc3 14.Nd4 Bb5 15.Nb5 Nc6=; 13.Qd4? Nc2 14.Qd2 Na1-+) 13...Rc3 14.ab4+-) 12.Qa4 (better 12.Ng5 Nf5 13.e6 fe6 14.Ne6+-) 12...Nec6?? (better 12...Nd3+=) 13.a3+- Rb8 14.ab4 Rb5 (14...Nb4 15.Bd7 Qd7 16.Qd7 Kd7 17.Ra7 Ke8 18.Be3+-) 15.Nb5 (15.Qb5 Nb4 16.Qb7 Bc6 17.Qa7 Qd7+-) 15...Nb4 16.e6 Bc6 (16...fe6 17.Qa7 Bb5+-) 17.ef7 (17.ef7 Kf7 18.Qa7 Kg8 19.Ne5+-) 1–0. Deschamps,R (2055) – Valette,C (2125), Open Condom FRA, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Nc3 Nbc6 8.cd5 Nd5 9.Bb5 Bd7 10.Nd5 ed5 11.0-0 Be7 12.d4 Ne5 13.Ne5 (13.de5 Bb5) 13...Bb5 14.Re1 0-0 15.a4 Bd7 16.Ba3 Rc8 17.Rc1 Re8 18.Bc5 Bf6 19.f4 Bf5 20.Qb3 Rc7 21.Re3 Be4 22.Rec3 Qc8 23.Qb5 ½–½. juliangon (2600) – marekt (2470), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Nc3 Nbc6 8.cd5 Nd5 9.Bb5 Bd7 10.Nd5 ed5 11.e6 fe6 12.Bc6 Bc6 13.Ne5 Qc7 14.Nc6 (better 14.Bb2!? h5 15.Qc2=) 14...Qc6-/+ 15.0-0 Be7 16.Qh5 g6 17.Qh3 Bf6 18.Re1? (18.Rb1 0-0-/+) 18...0-0 (18...Ba1 19.Re6 Kd7 20.Rg6 Kc7 21.Rc6 Kc6 22.Qe6 Kb5 23.Qd5+-) 19.Rb1 (19.Re6?? Rae8 20.Re8 A) 20...Ba1?! 21.Rf8 Kf8 22.d3=+ (22.Qh7? Qa4 23.g3 Qd1 24.Kg2 Qc1-+); B) worse 20...Re8 21.Bb2 Bb2 22.Rf1-+; C) 20...Qe8-+) 19...Bd4 20.Re2 Rae8 (20...Rf2 21.Rf2 Rf8 22.d3 Bf2 23.Kh1-+) 21.Ba3 (21.d3!?-/+) 21...e5-+ 22.Rbe1 Rf5 23.d3 (23.Qb3 Ref8 24.Rf1 Qa6-+) 23...Ref8 Black intends c4 24.Rf1 Qf6 (24...Qa4 25.Bb2 Qa2 26.Bd4 Qe2 27.Bc5-+) 25.Qg3 Rb8 (25...h5!? 26.Kh1 Kh7 27.f3-+) 26.Bc1 c4 (26...Qa6 27.Bh6-+) 27.dc4-/+ dc4 (27...Qa6 28.Be3 Qc4 29.Rd2-/+) 28.Be3 Qb6 29.h3 Rc8 30.Rc1 c3 31.Rec2 Qb4 32.Kh2 Qf8 33.Qg4 Rd8 34.Qe4 Qd6 35.Kg1 Rff8 36.Rd1 Qb6 37.Rdc1 Qb4 (37...Qf6 38.Qg4 Rb8 39.Qe4-/+) 38.Kh1 (38.Bd4 ed4 39.Rc3=+) 38...Qb6 (38...Qd6 39.Qh4-/+) 39.Kg1 (39.Rc3 Be3 40.fe3 Qa5=) 39...a5 (39...Qf6 40.Qg4 Qf5 41.Qe2-/+) 40.Kh1 (40.Rc3 Be3 41.Re3 Rd2 42.Qe5 Rdf2= (worse 42...Rff2 43.Rc8 Rf8 44.Rf8 Kf8 45.Qh8 Kf7 46.Qh7 Kf8 47.Qh8 Kf7 48.Qe8 Kg7 49.Qe5 Kf7 50.Kh1 Rd1 51.Kh2+-)) 40...Rf7 (40...Qf6 41.Qg4 Qf5 42.Qe2-/+) 41.Rd1 (better 41.Rc3 Be3 42.fe3=) 41...Qf6 42.Rd3 Rfd7 43.f3 (43.Bd4 ed4 44.Rcc3 dc3 45.Rd7 Rd7 46.Qe8 Qf8 47.Qd7 Qc5 48.Qe6 Kg7 49.Qd7 Kh6-+) 43...Kf7 (43...Qf5 44.Kh2-+) 44.f4 (44.Bc1 Qf5-+) 44...Qf5 45.Qf5 gf5 46.fe5 (46.Kg1 Ke6-+) 46...Be5 47.Rd7 Rd7 48.Kg1 Rb7 49.Kf2 Rb2 50.Re2 a4 51.Bc1 Bg3! 52.Kf3 (52.Kg3 Re2 Deflection) 52...a3 (52...Re2 53.Ke2 Be5 54.Kd3-/+) 53.Re3 (53.Bb2 ab2 54.Kg3-+) 53...Bd6 54.Rc3 Ra2 55.Rd3 (better 55.Rc6 Ke7 56.g4-+) 55...Ke6 56.Re3 Kd5 57.Rd3 Kc6 58.Rc3 Kb5 59.Rd3 (59.Bg5 Rb2 60.Bc1 Kb4-+) 59...Bc5 60.Kf4 (60.Be3-+) 60...Rf2 (60...Rf2 61.Rf3 a2 62.Rf2 a1Q-+) 0–1. Tsharotshkin,M – Trzaska,Peter (2255), Dortmund op–A, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Nc3 d4 8.Ne4 (8.Nb5 Ng6 9.Nfd4 Ne5= (9...cd4? 10.Qf3+-)) 8...Ng6=+ 9.g3 (9.Rb1 Nd7=+) 9...Nd7 10.Bg2 (10.Rb1 Qa5=+) 10...Bb7-/+ 11.Qe2 Qc7 12.d3 Be7 13.0-0 Nde5 (13...Rb8 14.Re1-/+) 14.Ne5=+ Qe5 15.f4 Qc7 16.h4 (16.Rb1 Bc6=+) 16...0-0 17.h5 Nh8 18.f5 ef5 (18...Be4 19.Qe4 Qg3 20.Rf3=+) 19.Rf5=+ Rae8 20.Qf2 Bc8 21.Bf4 Qb6 22.Rd5 Be6 23.Kh2?? (23.Re5 Bg4=+) 23...h6?? (23...Bd5!? 24.cd5 f5 25.Nd2-+) 24.Re1? (24.Re5-/+) 24...Rd8?? (better 24...Bd5 25.cd5 f5-+) 25.Rd8=+ Rd8 (worse 25...Bd8 26.Bd6+-) 26.Re2 Qb1 (26...Re8 27.Rb2 Qd8 28.Qf3=+) 27.Rc2 (27.Qf3!?=+) 27...f5-/+ 28.Re2 fe4 29.Re4 Bf7 30.Re7 Qd3 31.Bd5? (better 31.Bc7 Rc8 32.Bd6 Qc4 33.Qf5=+) 31...Bd5-+ 32.cd5 Qf5?? (32...Qd1 33.Re2-+) 33.d6? (better 33.Rg7! Kg7 34.Bh6 Kf6 35.Bg7 Kg5 36.Qd2 Kg4 37.Qe2 Qf3 38.Qe6 Kg5 39.Qe5 Kg4 40.Qe6 Kg5 41.Qe5 Kg4 42.Qe6=) 33...Nf7 (33...Qh5 34.Kg1 Qd1 35.Kh2-+) 34.Qe2 d3 35.Qb2 (35.Qf3 Nd6 36.Re5 Qf7 37.Qd3 Qa2 38.Re2 Qf7-+) 35...Qh5 36.Kg2 Qd5 37.Kh2 d2 (better 37...a6 38.a3-+) 38.Qd2 Qd2 39.Bd2 Rd6 40.Be3 Ra6 41.Bc5 Ra2 42.Kh3 a5 43.Kg4 Rc2 44.Ba3 (44.Be3 Kf8 45.Ra7 Ne5 46.Kf5 Nc6 47.Ra8 Kf7-+) 44...Rc4 45.Kh3 Ng5 46.Kg2 Ne4 47.Ra7 Rc3 48.Ra5 Rg3 49.Kh2 Kh7 50.Ra7 Rf3 51.Bb4 h5 52.Kg2 Rf4 53.Kh2 h4 54.Be1 (54.Ba3 Kg6-+) 54...Kh6 55.Ra8 g5 56.Kh3 Rf1 57.Bb4 Rf3 58.Kg2 Rg3 59.Kh2 Kh5 60.Ra4 Re3 61.Ra2 Nf6 (61...g4!? 62.Ra5 Kg6 63.Ra6 Kg5 64.Ra5 Kf4 65.Ra2-+) 62.Bc5 Ng4 63.Kg1 Rc3 64.Ba7 h3 65.Ra1 Rc2 66.Kh1 (66.Rf1 Kh4-+) 66...Rh2 (66...Nf2 67.Bf2 Rf2 68.Kg1 Rg2 69.Kh1-+) 67.Kg1 Rg2 68.Kh1 Nf2 69.Bf2 Rf2 0–1. Rahls,Peter (2235) – Kelecevic,Nedeljko (2425), Liechtenstein op, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Bd3 Nbc6 8.Nc3 Ng6 9.Bg6 hg6 10.d3 dc4 11.dc4 Qd1 12.Nd1 Rb8 13.Bd2 Ba6 14.Ne3 Nd4 15.Bc3 (15.Ng5!?=+) 15...Nf3-/+ 16.gf3 Rh4 17.Kd2 Be7 18.Rab1 Rd8 19.Kc2 Rf4 20.Ba5 Rc8 21.Kd3 Rf3 22.Ke2 Rf4 23.Rhc1 Re4 24.Rb3 Re5 25.Ra3 Rc6 26.f4 (better 26.Bc3 Rh5 27.Bg7 Rh2 28.Be5-+) 26...Rh5 27.Rb3 (27.Ng4 f5 28.Nf2 Rh2-+) 27...Rh2 28.Kf3 Ra2 29.Bc3 f6 30.Rh1 Rb6 31.Rb6 ab6 32.Rb1 Bb7 33.Kg3 Bd8 34.Re1 Kf7 35.Ra1 (35.Rd1 Re2 36.Rd8 Re3 37.Kf2 Rc3 38.Rd7 Kg8 39.Rb7 Rc4-+) 35...Ra1 36.Ba1 Bc7 0–1. Schuls,O (2220) – Huebner,R (2595), Puhajarve EST, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

6.d4 Nc6

7.c3 Qa5 8.Bd2=.

7.c3 Qb6 8.Bd3 cd4 9.0-0 Bd7 (9...dc3 10.Nc3 Ba6 11.Rb1=) 10.cd4= Nd4 11.Nc3 (11.Nbd2 Bb5 12.Rb1 Qa5=+) 11...Nf3 12.Qf3 Bb4 (12...Rc8 13.Ne2=+) 13.Rb1 Qa5 14.Qg4 Bf8 15.Nb5 g6 16.Bg5 (16.Be3 Be7+/-) 16...a6 17.Nd6 (17.Bd2 Qd8 18.Nd4 Nh6+=) 17...Bd6 18.ed6 f6 19.Bh4 Qa3 (19...Qa2!? 20.Bg6 Kf8+/-) 20.Bg6!+/- Kf8 (20...hg6 21.Qg6 Double attack) 21.Bf6 Nf6 22.Qg5 Qc3 (22...Ng8 23.Qf4 Kg7+-) 23.Rb3 Qd4 (23...hg6 24.Rc3 Kg7+-) 24.Rf3 hg6 25.Qg6 Rh7 (25...Ra7 26.Rb1 Bb5 27.Rf6 (worse 27.Qf6 Qf6 28.Rf6 Kg7 29.Re6 Rd7=+) 27...Qf6 28.Qf6 Ke8 29.Qh8 Kd7 30.Qg7 Kd6 31.Qa7+-) 26.Qh7 1-0. Bonavoglia,Marco (1980) - Dobboletta,Alex (2175), Arco ITA, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.c3 cd4 8.cd4 Nge7 (8...Qb6 9.Qd3=) 9.Bd3 (9.Nc3 Rb8=) 9...Nf5 (9...Ba6 10.0-0 Bd3 11.Qd3=) 10.0-0+= Bd7 (10...Rb8 11.Nbd2+=) 11.Bf5 ef5 12.Ba3 Be7 (12...Ba3 13.Na3 Qa5 14.Qd3+=) 13.Be7+- Qe7 (13...Ne7 14.Nc3+=) 14.Nc3 Be6 15.Nb5 0-0 16.Nd6 (16.Rc1 Na5+=) 16...f6 17.Qa4 (17.Rc1 Qd7 18.Qc2 Nb4+=) 17...Qd7= 18.Rac1 (18.Qa3 Rfd8 19.Qc5 Ne5 20.de5 fe5=) 18...Ne5+= 19.Qd7 Nd7 (19...Nf3 20.gf3 Bd7 21.Rfe1+=) 20.Rfe1+- Bf7? (better 20...Rfd8 21.Re6 Nf8+-) 21.Re7+- (21.Nf5?! Rfe8+=) 21...Nb6 22.Rcc7 (22.Nf7?! Rf7 23.Rf7 Kf7 24.Rc7 Kg8=; 22.Nf5?! Nc4+=) 22...Bg6 (22...Nc4 23.Nf7 (23.Rf7?! Rf7 24.Nf7 Rf8+-) 23...Rfe8 24.Red7+-) 23.Rg7 Kh8 24.Nh4 (24.Ra7?! Nc4 25.Nb5 Ra7 26.Ra7 f4+-) 24...Rfd8 (24...Rfc8 25.Ng6 hg6 26.Rh7 Kg8 27.Rcg7 Kf8 28.Nc8 Rc8+-) 25.Ndf5 Rac8 (25...Nd7 26.Rgd7 Rd7 27.Rd7 Be8 28.Rd5 Rb8+-) 26.Ng6 (26.Ng6 hg6 27.Rh7 Kg8 28.Rcg7 Kf8 29.Rh8) 1–0. Pinilla,Diego (1700) – Parra Meza,Brayan, 1st Semifinal Deptal Mayores Absoluto C, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

7.Nc3 cd4 8.Bb5 Bd7 9.Bc6 Bc6 10.Nd4 (10.Ne2 Bb5=) 10...Bb4 (10...Qc7 11.Bf4=) 11.Bd2 (worse 11.Nc6 Bc3 12.Bd2 Bd2 13.Qd2 Qc7-+) 11...Qb6 12.Nce2 Bc5 13.Rb1 Qc7 14.0-0 Ne7 15.f4 0-0 16.Bb4 Bd7 (16...Bb4 17.Rb4 Rab8 18.Qd2=) 17.Bc5 Qc5 18.Rf3 Rab8 19.Rfb3 Rb6 20.Rc3 Qa5 21.Nb3 Qb5 (21...Qa6 22.Rc7 Rd8 23.Ned4=) 22.Ned4 (22.Rc7 Rb7 23.Ned4 Qb6 24.Rb7 Qb7=) 22...Qb4 (22...Qa4 23.Rc7=) 23.Rc7 Rb7 24.Rb7 Qb7 25.Qd3 Ng6 26.Rf1 Qc7 27.Qa6 Rb8 28.Kh1 (28.Rf3 Rb4=) 28...Qb6 29.Qb6 ab6 30.g3 (30.Rf2 Rc8=) 30...Ra8=+ 31.Ra1 Ra4 32.Kg2 f6 33.Re1 (33.ef6 gf6 34.f5 ef5=+) 33...fe5 34.fe5 Ra2 35.Re3 (35.h4 Ba4 36.Kf3 Kf7-/+) 35...Kf7 36.h4 Ba4 37.h5 Nf8 38.Nc1 Ra1 39.Nce2 g5 40.Rf3 Ke7 41.g4 (41.Rf6 Be8 42.g4 Ra2=+) 41...Nd7-/+ 42.Re3 h6 43.c3 (43.Kf2 b5 44.Nc6 Ke8-/+) 43...Nc5 44.Ng3 Ra2 45.Kh3 Rd2 46.Rf3 (46.Nf1!? Rf2 47.Ng3-+) 46...Nd3 (46...Rd3 47.Nge2-+) 47.Nge2 (47.Nf1 Rd1-+) 47...Ne5 48.Re3 Rd3 (48...Rd3 49.Rd3 Nd3-+) 0–1. Wisniowska,K (2035) – Iwanow,A (2160), Najdorf Memorial, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 b6 5.bc5 bc5)

4.e5 Qb6

5.a3 a5 6.b5 Ne7 7.d4 (7.c4 Nd7=) 7...Ng6 (7...Nd7 8.Nc3=) 8.h4= h5 (8...Nd7!? 9.h5 Ne7=) 9.Bd3+= Be7 10.c3 Nf8 (10...Nd7!? 11.Be3 a4+=) 11.a4+- Nbd7 12.Bf4 (12.Be3 f6+-) 12...c4 (12...Ng6 13.Be3+-) 13.Bc2 Qc7 (13...Qd8 14.Nbd2+-) 14.Bg3 (14.Nbd2 Ng6 15.Bg6 fg6+-) 14...b6 (14...Nh7 15.Nbd2+-) 15.Nbd2+- Qd8 16.Ng1 (16.Qb1 Rg8+-) 16...g6 (16...Ng6 17.Bg6 fg6 18.Qc2+-) 17.Qf3 (better 17.Ne2+-) 17...Rh7? (better 17...Ra7+-) 18.Nc4!+- Qc7 (18...dc4 19.Qc6 Double attack (19.Qa8 Pinning; 19.Qa8 Deflection; 19.Qc6 Decoy)) 19.Nd2 (better 19.Nd6!? Kd8 20.Ne2 f6+-) 19...Bb7 20.Ne2 Rc8 (20...Rh8 21.0-0+-) 21.0-0 (21.Bf4 Qd8 22.Qg3 Nb8+-) 21...Bb4 (21...Qd8 22.Qf4+-) 22.Bg6 (22.cb4 Qc2 23.Bf4 ab4+-) 22...Ng6 23.cb4 Qc2 (23...ab4 24.Rfc1 Qd8 25.Rc8 Qc8 26.Qb3+-) 24.Rfd1 (better 24.Qe3!? ab4 25.Rfc1 Qb2+-) 24...ab4 25.Qb3 (25.Nb3 Qe4 26.a5 Kd8+-) 25...Qb3 26.Nb3 f6 27.Nf4 (27.a5!? fe5 28.a6 Ba8+-) 27...Nf4+- 28.Bf4 fe5 29.Be5 Ne5 30.de5 Rc3 31.Nd4 Kd7 (31...Rhc7 32.Ne6 Re7 33.Nd4 Re5 34.a5 ba5 35.Ra5+-) 32.Rac1 (32.a5 ba5 33.Ra5 Rc4+-) 32...Rh8 (32...Ra3 33.f4 Ra4 34.f5 ef5 35.e6 (worse 35.Nf5 Ke6 36.Nd4 Ke5=+) 35...Kd8 36.Nf5+-) 33.Rc3+- bc3 34.Kf1 Rc8 35.Ke2 Rc4 36.Kd3 c2 37.Rc1 Ra4 38.Rc2 Ra3 39.Rc3 Ra2 40.Ke3 Ra1 41.f3 Re1 42.Kf4 Rd1 43.Nb3 d4 44.Rc4 d3 45.Rd4 (45.Rc3 Bd5+-) 45...Bd5 46.Ke3 Ke7 47.Nd2 Re1 48.Kd3 Rg1? (better 48...Re5 49.g4 hg4 50.fg4 Bg2+-) 49.g4+- hg4 50.Rg4 (better 50.fg4!? Rg3 51.Ke2 Kf7+-) 50...Re1 51.Rg5 Ra1 (51...Rh1 52.Rh5+-) 52.h5 Rh1 53.Ke3 (better 53.Ne4 Kf7 54.Ng3+-) 53...Re1? (better 53...Kf7+-) 54.Kf4 Rd1 (54...Rh1 55.Ne4 Be4 56.Ke4+- (56.fe4?! Kf7+-)) 55.Ne4 (55.Ne4 Be4 56.Ke4+- (56.fe4?! Rf1 57.Ke3 Re1 58.Kf3 Kf7+-)) 1–0. Klimek,Petr (1945) – Liska,Martin (1680), Karlovy Vary Czech Republic, Open, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

5.bc5 Qc5 6.Ba3 Qc7 7.Bf8 Kf8 8.d4 Nc6 9.c3 f6 10.ef6 Nf6 (10...gf6 11.c4+=) 11.Bb5 Bd7 12.0-0 Ne4 13.Nfd2 (13.Re1 Kg8+-) 13...Nf6 14.Nf3 (14.Re1 Kf7+=) 14...Ne4+- 15.Bd3 Nf6 16.Re1 g6 17.Nbd2 Kg7 18.Ne5 (18.Qe2 Rhf8+-) 18...Rhe8 (18...Ne5 19.de5 Nh5 20.c4+=) 19.Ndf3 (19.Rc1 Ne5 20.de5 Nh5+-) 19...Rac8 (19...Ne5 20.de5 Nh5 21.c4+=) 20.Ng5 (20.Rc1 Ne5 21.Ne5 Bc6+-) 20...Nd8 (20...Ne5!? 21.de5 Ng8+=) 21.Bg6 hg6 22.Qd3 Ne4 23.Ne4 de4 24.Qe4 (24.Re4?! Rh8 25.Re3 Be8=) 24...Bc6 25.Qg6 Kf8?? (better 25...Kh8 26.Nc6 Nc6+-) 26.Qf6 (26.Nc6?! Qc6 27.Re3 Re7+=) 26...Nf7 27.Re3 (27.Nc6?! Qc6 28.Re3 e5 29.Qc6 bc6=) 27...Qe7 (27...Red8+-) 28.Ng6 (28.Ng6 Kg8 29.Ne7 Re7 30.Qe7 Ba4 31.Rg3 Ng5 32.Rg5 Kh8 33.Qg7) 1–0. Clery,N (2330) – Lucas,Jean, Open Le Touquet FRA, 2002. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 Qb6)

5.bc5 Bc5

6.d4 Bf8 7.c3 Bd7 8.a4 Nc6 9.Bd3 Na5 10.Bc2 Rc8 11.Ng5 Be7 12.h4 (12.Nh7 g6 13.Ng5 Nc4+=) 12...h5 13.Qf3 Bg5 14.hg5 (14.Bg5?? Qb2-+) 14...Nb3 15.a5 Na5? (better 15...Qb5 16.g6 f5 17.Bb3 Qb3 18.Rh5 Rh5 19.Qh5 Qc2=) 16.Rh5+- Rh5 17.Qh5 Nc6 18.Qh8 Nce7 19.Qg7 Bb5 20.Bh7 Qc6 (20...Kd7 21.g6 Qc7 22.Ra7 (22.gf7 Qc4 23.Qg4 Qf1 24.Kd2 Qf2 25.Kd1 Qf1 26.Kd2 Qf7=+; 22.Qf7?? Qc4 23.Qf3 Qf1 24.Kd2 Rf8-+) 22...fg6 23.Qf7+-) 21.Bg8 Qc4 22.Qf7 Kd8 (22...Kd7 23.Qe6 Kd8 24.Qd6 Ke8 25.Bf7 Kf7 26.Qf6 Kg8 27.Qe6 Kf8 28.Qh6 Kg8 29.Qe6 Kf8 30.Qf6 Kg8 31.Qe6=) 23.Qf3 Qf1 (23...Ng8 24.Ra7 Ba6 25.Ba3 Qf1 26.Kd2+-) 24.Kd2 Ng8 25.Kc2 (25.Ra7 Ba6 26.Ba3 Kc7 27.Qf7 Kb8 28.Ra6 ba6+-) 25...Ne7 (25...Be2 26.Qf8 Kd7 27.Qd6 Ke8 28.Qe6 Ne7 29.Ra7 Bd3 30.Kb2 Qe2 31.Ka1 Bb1+=) 26.Nd2 (26.Ra7 Nf5 27.Kd2 Ba6=) 26...Qh1 (26...Qe2+-) 27.Qf8 Kd7 28.Qe7! (28.Qe7 Ke7 29.Ba3 Kf7 30.Rh1+-) 1–0. Jossien,R (2155) – Rosenfeld,I (2025), 18th Open Le Touquet FRA, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

6.d4 Bb4

7.c3 Ba5 8.Ba3 Qc7 Attacking the backward pawn on c3 9.Qc2 Ne7 10.Bd3 h6 11.Bd6 Qd7 12.0-0 0-0 13.Re1 Re8 14.Be7 (14.Nbd2 Nf5 15.Bf5 ef5+=) 14...Qe7 15.Nbd2 Qc7 16.Re3 Kh8 17.Nb3 Qc3 (17...Bc3?? 18.Bb5 Bd7 19.Rc3+- (19.Qc3?! Qc3 20.Rc3 Bb5+=)) 18.Qc3 Bc3 19.Bb5 Ba1 20.Be8 Bb2 21.Nc5 (21.Bf7 Nc6+=) 21...Nc6= 22.Bc6 bc6 23.Rb3 Bc1 (23...Ba1 24.Kf1 f6 25.Rb1=) 24.h4 (24.Nd3 Bg5+=) 24...h5= 25.Ne1 g6 (25...Bd2!? 26.Ned3 a5=) 26.Ned3+= Bh6 (26...Bd2 27.Kf1+=) 27.Nb4+- a5 28.Nc6 Bf8 29.Rb5 Bc5 (29...a4 30.Rb6+-) 30.dc5 (30.Rc5 Bd7 31.Na5 Kg7+-) 30...Bd7 (30...a4 31.Nd4+-) 31.Rb6 (31.Rb8 Rb8 32.Nb8 Bc8+-) 31...Rc8 (31...Bc6!? 32.Rc6 a4+=) 32.Rb8+- (32.Na5?! Rc5 33.Nb7 Rc7+=) 32...Rb8 (32...a4 33.f4+-) 33.Nb8 Bc8 34.Nc6 a4 35.Na7 Ba6 36.f4 Kg8 (36...f6 37.c6+-) 37.c6 Kf8 (37...f6+-) 38.c7 Ke7 39.c8Q Bc8 40.Nc8 Kd8 41.Nd6 Ke7 42.Kf2 f6 43.Ke3 fe5 44.fe5 Kf8 (44...Kd7 45.Nb5+-) 45.a3 Kg7 46.Nb7 Kh6 47.Kf4 d4 48.Nc5 g5 (48...d3 49.Nd3 Kg7 50.Nc5+-) 49.hg5 Kg6 50.Na4 h4 51.Nc5 h3 52.gh3 Kh5 White now must not overlook the idea a4 53.a4 d3 54.Nd3 (54.Ne6 d2 55.Kf5 d1Q 56.Nf4 Kh4-+) 54...Kg6 55.a5 Kf7 (55...Kh7 56.a6 Kh8 57.a7 Kg8 58.a8Q Kf7 59.Qb7 Ke8 60.g6 Kd8 61.g7 Ke8 62.g8Q) 56.a6 Ke7 (56...Kg6 57.a7 Kg7 58.h4 Kf8 59.a8Q Kf7 60.Qb7 Ke8 61.g6 Kd8 62.g7 Ke8 63.g8Q) 57.g6 (57.a7 Kd8 58.a8Q Ke7 59.g6 Kd7 60.Qb7 Kd8 61.g7 Ke8 62.g8Q) 57...Kf8 58.a7 Kg7 (58...Ke8 59.a8Q Kd7 60.Qb7 Kd8 61.g7 Ke8 62.g8Q) 59.Kg5 Kf8 60.a8Q Kg7 (60...Ke7 61.g7 Kd7 62.Qb7 Ke8 63.g8Q) 61.Qb7 Kf8 (61...Kg8 62.Qf7 Kh8 63.Qf8) 62.Qf7 1–0. Feng,Richard (1645) – Aprahamian,Tomas, World Youth Open U14, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

7.c3 Ba5 8.Bd3 Nc6 9.0-0 Bd7 10.Bd2 Nge7 11.Na3 Rc8? (11...a6 12.Rb1 Qa7 13.Nc2+=) 12.Nb5 (12.Rb1 Qd8+-) 12...Kf8? (better 12...Ne5 13.Ne5 Bb5+-) 13.Nd6+- Rd8? (13...Rb8 14.Ng5 Nd8+-) 14.Ng5 (14.Rb1 Bb4+-) 14...Be8 (14...Rb8 15.Ngf7 Rg8+-) 15.Ne8 (better 15.Rb1 Bb4 16.Qh5+- (worse 16.cb4 Qd4 17.Rb3 Qe5 18.Nb7 Rc8+-)) 15...Ke8 16.Qh5 (16.Qf3 Rf8 17.Qh5 Qb2+-) 16...g6+- 17.Qf3 Kd7? (better 17...Nf5 18.Bf5 ef5+-) 18.Rab1 (18.Nf7?! Rdf8+-) 18...Qc7 19.Qf7 (19.Nf7?! Rdf8 20.Qf6 Nf5+-) 19...Nd4 (19...Rdf8 20.Qe6 Ke8+-) 20.cd4 Bd2 21.Qe6 Ke8 22.Qf7 Kd7 23.Qe6 (23.Ne6 Bg5+-) 23...Ke8 24.Bb5 Rd7 25.Qf7 (25.Qf7 Kd8 26.Qg7+-) 1–0. Sineux,Sandra – Winckel,Fabrice, 7th St Quentin Open, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

7.c3 Be7 8.Bd3 Nc6 9.0-0 Bd7 (9...Nh6 10.Na3+-) 10.a4 (10.Na3 Qa5 11.Qb3 Nh6+-) 10...Qc7 (10...Nh6 11.Na3 Na5 12.Nb5+-) 11.Na3 a6 12.Bd2 (12.h3+-) 12...g6 (better 12...Na5!?+-) 13.c4+- Rc8 (13...Bd8 14.cd5 ed5 15.Nc2+-) 14.cd5 ed5 15.Nc2 h5 (15...Be6 16.Ne3+-) 16.Rc1 (better 16.Rb1 Be6 17.Qc1+-) 16...Qa5?? (better 16...Be6+-) 17.Ba5 Na5 18.Ne3 Nh6 (18...Rc1 19.Qc1 Be6 20.Qc2+-) 19.Nd5 Nf5 20.Rc8 Bc8 21.Bf5 Bf5 22.Ne7 Ke7 23.Qd2 Nc6 24.d5 Nb8 25.Qb4 Kd7 (25...Ke8 26.Qd6 g5 27.Qb8 Ke7 28.Qh8 Bd3 29.Rc1 Bc4 30.Rc4 Kd7 31.Qc8 Ke7 32.Rc7) 26.Qb7 Kd8 (26...Ke8 27.Qb8 Kd7 28.Qd6 Kc8 29.Rc1 Bc2 30.Rc2 Kb7 31.Rb2 Ka7 32.Qe7 Ka8 33.Qb7) 27.d6 Nd7 (27...Nc6 28.Qc6 Bd7 29.Qc7 Ke8 30.Qb8 Bc8 31.Qc8) 28.Qc7 Ke8 29.Qc8 1–0. Janek – Stineau, internet, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

7.c3 Be7 8.Bd3 Nc6 9.Qc2 (9.0-0 Nh6+-) 9...h6 (9...h5 10.Na3+=) 10.0-0+- Bd7 11.Ba3 (11.Na3 a6+-) 11...Na5 12.Be7 Ne7 13.Nbd2 Rc8 14.Rfc1 (14.Rab1 Qc7 15.Rfc1 0-0+=) 14...Nac6 (14...Bb5!?=) 15.a3 (15.Rab1 Qc7+-) 15...0-0+= 16.Nb3 (16.Rab1 Qc7+=) 16...Qc7 (16...Na5 17.Na5 Qa5 18.Qb3+=) 17.Qd2 (17.Rab1 b6+=) 17...Na5 18.Na5 Qa5 Attacking the backward pawn on c3 19.Qb2 b6? (19...Bc6+=) 20.Bb1?? (better 20.a4 Rc7 21.Nd2+-) 20...Rc7=+ 21.Qb4 Qb4 (21...Bb5 22.Nd2=+) 22.ab4= Nc6 (22...Bb5 23.g3=) 23.Bd3 Rfc8 24.b5 (24.Ba6 Ra8=) 24...Na5 25.Ra3 Nc4 26.Rb3 Ra8 27.Ra1 f6 28.Kf1 (28.h3 Be8=) 28...fe5=+ 29.de5 Rc5 (29...Na5 30.Rba3 Rac8 31.Rc1=+) 30.Rab1 (30.Bc4 dc4 31.Rba3 Rb5 32.Ra7 Ra7 33.Ra7 Be8=) 30...g5 (30...Na5 31.Ra3 Rac8 32.Nd4 Rc3 33.Rba1=+) 31.g4 (31.Bc4!? dc4 32.Rb4=) 31...Rf8 32.Ke2 Rf3 (32...Rfc8 33.Bc4 Rc4 34.Ra3-/+) 33.Kf3=+ Nd2 34.Ke3 (34.Ke2!? Nb1 35.Rb1 Rc3 36.Ra1=+) 34...Nb1-/+ 35.Rb1 Rc3 36.Kd4 Rc5 (36...Ra3!?-/+) 37.h3 Kf7 (37...Be8 38.f3-/+) 38.Ra1 Rc7 39.Rf1 Kg7 40.f4 gf4 41.Rf4 Be8 42.Rf6 Bf7 43.Rf1 Be8 44.Rf6 Bf7 45.Rf1 Be8 46.Rf6 Bf7 ½–½. Dovbnia,Nikita – Brozka,Karel, European Youth Chess Championship U8, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

7.c3 Be7 8.Bd3 Bd7 9.Nbd2 Nh6 (9...Nc6 10.Rb1 Qc7 11.0-0+=) 10.0-0 Nf5 (10...Nc6 11.Qb3+=) 11.g4 (11.Qb3 Nc6+=) 11...Nh4 12.Nh4 Bh4 13.Ba3 Be7 (13...Nc6 14.Nf3 Qa5 15.Bd6=) 14.Rb1 Qc7 15.Be7 Ke7 16.Qb3 Bc6 17.c4 Nd7 18.Rfc1 h5 (18...Nb6 19.cd5 Nd5 20.Ne4+-) 19.g5 (19.cd5 ed5 20.g5 Qa5+-) 19...g6 (19...Qa5!? 20.Rb2 Kd8+=) 20.cd5+- ed5 21.Qa3 Kd8 22.Nf1 h4 23.Ne3 Ne5 24.de5 Qe5 25.Qa5 Ke8 26.Qc5 (26.Nf5 Qf4 (26...gf5?? 27.Re1 Qe1 28.Re1 Kf8 29.Qc5 Kg8 30.Bf5+-) 27.Rc6 Qg4 28.Kf1 Qh3 29.Ke2 Qg4 30.Ke1 Qg1 31.Bf1 Qg5+-) 26...Qg5 27.Kf1 Qe7 28.Qd4 Rh5 (28...Rh7 29.Nd5 Bd5 30.Qd5+-) 29.Ng4 (29.Nf5! gf5 (29...Rf5?? 30.Bf5 gf5 31.Re1 Qe1 32.Re1 Kd7 33.Qf6 Bb5 34.Kg2+-) 30.Re1 Kd7 31.Re7 Ke7+-) 29...Kf8 30.Nf6 Rh6 31.Bb5 Qd6 32.Bc6 bc6 33.Rb7 Qh2?? (better 33...a6+-) 34.Rc6 Qh3 (34...Qh1 35.Ke2 g5 36.Qb4 Kg7+-) 35.Kg1 Rc8 36.Rc8 (36.Qd5 Qf1 37.Kf1 Rh7 38.Rc8 Kg7 39.Rf7 Kh6 40.Rh7) 36...Qc8+- 37.Rb8!! (37.Rb8 Qb8 38.Nd7 Ke8 39.Nb8+-; 37.Ra7?! h3 38.Nd7 Kg8+-; 37.Qa7? Qc1 38.Kg2 Qg5 39.Kf1 Qf6 40.Qc5 Kg7 41.Qd5 h3-+; worse 37.Qd5 Qc1 38.Kh2 Qf4 39.Kh3 Qf6 40.Ra7 Rh5-+ (40...Qf2? 41.Ra8 Kg7 42.Qe5 Qf6 43.Rg8 Kg8 44.Qf6+-)) 1–0. Ossa,Orlando (2270) – Dabraccio,Guillermo (1730), 9th Universidad Central, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

7.Bd2 Nc6 8.Bb4 Qb4 9.Qd2 Qb2 10.Qc3 Qc1 11.Ke2 Qf4 12.Nbd2 Nge7 13.g3 Qg4 (13...Qh6 14.Kd1=) 14.h3 Qh5 15.g4 Qg6 16.Ke1 f5 17.Bd3 Qf7 18.Ke2 (18.Rg1 0-0+=) 18...fg4 (18...0-0 19.Rab1+=) 19.hg4+- h6 20.Rh3 Ng6 21.Bg6 Qg6 22.g5 h5 23.Rah1 Qf7 (23...Bd7 24.Qd3 Ne7 25.Qg6 Ng6 26.Ke3+=) 24.Nh4 Qf4 (24...Rf8 25.Rf3 Qg8 26.Qd3+-) 25.Ndf3 (25.Ng6 Qg4 26.f3 Qg2 27.Kd1+-) 25...Qe4+= 26.Kd1 Rf8 27.Re1 Qg4? (better 27...Qf4+=) 28.Rg3+- Rf3 29.Nf3 Qf4 (29...Qf5 30.Rh1 g6 31.Qe3+-) 30.g6 Bd7 (30...Ne7 31.Rh1 Qf5 32.Rg5+-) 31.Rh1 Rc8 32.Rh5 Ne5 (32...Qf8+-) 33.Rh8 Ke7 34.Rc8 (34.Qb4 Rc5 35.Qc5 Kf6 36.Qf8 Nf7 37.Qf7) 34...Nf3 (34...Nc4 35.Qb4 Nd6 36.Rb8+-) 35.Rf3 (35.Rf3 Qf3 36.Qf3 Bc8 37.Qf7 Kd6 38.Qg7+-; 35.Qf3 Qd4 36.Qd3 Qa1 37.Kd2 Bc8 38.Qa3 Kd7 39.Qa4 Kd8 40.Qh4 Kd7+-) 1–0. Kormos,Ladislav – Desormes,O (1760), FSFMB June Budapest HUN, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

6.d4 Be7

7.Bd3 Nc6 8.0-0 Nd4?? 9.Nd4 Bd7 10.Be3+-.

7.Bd3 Nc6 8.0-0 Bd7 9.c3 f6 10.Ba3 (10.Bf4 fe5 11.Be5 Nf6+/-) 10...Ba3 (10...fe5!? 11.Ne5 Ne5 12.de5 g6+=) 11.Na3+/- Rc8? (better is 11...fe5 12.de5 Nge7+/-) 12.Rb1+- Qd8 13.Nb5 Ke7 (13...Kf8 14.Nd6+-) 14.Nd6 Rc7 (14...Rb8 15.Qd2+-) 15.Qc1 g5 (15...b6 16.ef6 Nf6 17.Ng5+-) 16.Qa3 (better is 16.ef6 Nf6 17.Ng5 Rg8+-) 16...Qb8 (16...Kf8 17.Nb5 Kg7 18.Nc7 Qc7 19.ef6 Nf6 20.Ng5 h6+-) 17.Nb7 (17.Nb7 Kf7 18.Nd6 Kg7 19.Rb8 Nb8 20.Qa5+-) 1–0. Perez Garcia,Jose Miguel (1945) – Recacha Limeres,Sergi (1835), Barcelona ESP, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6)

7.Bd3 Nc6 8.0-0 Bd7 9.c3 h5 10.Qe2 a6 11.Be3 Na5 12.Nbd2 Nh6 13.Rab1 Qc7 14.c4 dc4 15.Nc4 Nc4 16.Bc4 Nf5 17.Rfc1 Ne3 18.Qe3 Qb8 (18...Bc6!?+-) 19.d5+- 0-0 20.d6 Bd8 21.Bd3 f5 (21...b5 22.Qe4 g6 23.Qf4+-) 22.h4 (better 22.Bc4!? b5 23.Qb3+-) 22...b5+- 23.Ng5 Bb6 24.Qf3 g6 25.Nh3 Rc8 26.Qg3 Rc1 27.Rc1 Qe8 28.Be2 Kh7 29.Nf4 Rc8 30.Rc8 Bc8 31.Bf3 Bd7 32.Bb7 a5 33.Qf3 Qd8 (33...b4 34.Nh3+-) 34.g3 (34.Bc6 b4 35.Qg3+-) 34...b4 35.Ba6 Be8?? (better 35...Qb8+-) 36.Qb7+- Kh6 37.Ne6 Qd7 38.Qb6 (38.Nc7 Bd4 39.Qd5 Bb6+-) 38...Qe6 39.Qa5 Bc6 (39...f4 40.Qb4 (worse 40.gf4 Qg4 41.Kf1 Qd1 42.Kg2 Bc6 43.Qd5 Qd5 44.f3 Qf3 45.Kh2 Qg2) 40...Qe5 41.Qf4 Qf4 42.gf4+-) 40.Qc5 (worse 40.Qb4 Qe5 41.Qd2 f4 42.Qf4 Qf4 43.gf4 Kg7+-) 40...Bd7 (40...Qe8 41.Bc4 Kh7 42.e6+- (42.Qb4 Qe5 43.a4 Qe4+-)) 41.Bc4 Qe8 42.Qe3 (42.e6 Bc6+-) 42...Kh7 43.e6 (43.e6 Be6 44.Qe6 Qe6 45.Be6+-) 1–0. Rosenberg,Jan – Radovic,S, Politiken Cup, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

7.Bd3 Nc6 8.0-0 Bd7 9.c4 dc4 (worse is 9...Nd4 10.cd5 ed5 11.Nc3+-) 10.Bc4 Nb4+/-.

7.Bd3 Bd7 8.a4 Ba4 9.Ra4 Qb1 10.0-0 Nc6 11.c3 Qb6 12.Qe2 Qb3 13.Ra1 Qb6 14.Be3 Bd8 (14...Qc7 15.c4=) 15.Rfb1+= Qc7 16.Bc1 (16.Qb2 Rb8+=) 16...Nge7= 17.Ba3 Ng6 18.g3 (18.Qb2 b6=) 18...Be7=+ 19.Bc1 (19.Be7 Nge7 20.Qc2 Rc8=+) 19...a6 20.Qc2 (20.h4 Ra7=+) 20...Kd7 (20...0-0!?-/+) 21.h4 f5 (21...Rhc8 22.h5 Nf8 23.Ba3=) 22.h5 Nf8 23.Ng5 (23.Qb3 Ra7=) 23...Bg5 (23...Ke8 24.Nf3=) 24.Bg5 Rc8 (24...Ra7=) 25.Bf5 (better 25.Qb3 Rb8 26.h6 gh6 27.Bf6=) 25...Nd4?? (better 25...ef5 26.Qf5 Ke8=+) 26.cd4+- Qc2 27.Bc2 (27.Bc2 Rc2 28.Rb7 Rc7 29.Rc7 Kc7 30.Ra6+-) 1–0. Lindner,U – Wienkamp,Frank, Dortmund op, 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

7.Be2 f6 8.0-0 fe5 9.Ne5 Nf6 10.c3 (10.c4 dc4 11.Bh5 g6+=) 10...Nc6 11.f4 Bd6 12.Kh1 Bd7 (12...0-0 13.Bd3=) 13.Nd2 (13.Ba3 Qc7+=) 13...Ne7 (13...0-0 14.Qb3=) 14.Ndf3 (14.Qb3 Qc7+=) 14...Ne4 (14...0-0 15.Qb3+=) 15.Nd7 Kd7 16.Qa4 Nc6 17.Bd2 (17.Qc2 Qa5 18.Rb1 Qc3 19.Rb7 Kd8+-) 17...Raf8 (17...Nd2 18.Nd2 Raf8 19.g3=) 18.Rab1 Qc7 19.Rb2 (19.Bb5 A) 19...Bf4? 20.Bf4 Rf4 21.Qa7 Rf3 22.Rf3+- (22.gf3?! Nd2+-); B) 19...Nd2 20.Nd2 Bf4=) 19...Kd8 (19...Nd2 20.Rd2 Rf4 21.c4=+) 20.Rfb1 b6 (20...Bf4 21.Rb7 Qc8 22.Be1+-; 20...Nd2?! 21.Nd2 b6 22.g3=) 21.Ne5 (21.g3 Na5=) 21...Be5 22.fe5 Rf2 23.Qa6 (23.Be1 Rf5=) 23...g5 (better 23...Qc8!? 24.Qb5 Rhf8=) 24.Be3+= Re2 (24...Nb8!? 25.Qa4 Rf7+=) 25.Qe2+- (25.Re2 Nc3 26.Bg5 Ke8+-) 25...Nc3 (25...Ne7 26.Rc1 Qc4 27.Qc4 dc4 28.Re2+-) 26.Bg5 (better 26.Qf3!? Ne4 27.Rc2+-) 26...Kd7+- 27.Qh5 Nd4?? (27...Nb1 28.Rb1 Kc8+- (28...Nd4? 29.Rc1 Nc6 30.Qf7 Kc8 31.Qe6 Kb7 32.Bf6+-)) 28.Rc1+- Kc8 (28...Qc4 29.Bf6 Ra8 30.Qh7 Kc6 31.Qh3+-) 29.Rf2 (better 29.Bf6 Rf8 30.Qh3 Kb7+-) 29...Kb8 30.Bd2 Nde2 (30...Ne4 31.Rc7 Nf2 32.Kg1 Nh3 33.Qh3 Kc7+-) 31.Re2 Rf8 32.Ree1 d4 33.Bc3 (33.Qg4 Qd7+-) 33...dc3 34.Qe2 (34.Qh6 Qf7+-) 34...Qc5 35.Rc2 Rf5 (35...Rc8 36.Rec1+-) 36.h3 (better 36.Qd3!? Rf4+-) 36...b5 37.Qe3 (better 37.Qd3 b4+-) 37...Qe3 38.Re3 b4 39.g4 Rf7 (39...Rf4 40.Rd3+-) 40.Rd3 1–0. Ferreira,Su (1705) – Gabriel,Ag, ch–POR w, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qb6 5.bc5 Bc5)

4.e5 c4

5.a3 b5 6.a4 Bb4= 7.ab5 Qb6 8.Ba3 Ba3 9.Na3 Nh6 (9...Qc5!?+=) 10.Bc4+/- dc4 11.Nc4 Qc7 12.Nd6 Ke7 13.0-0 (13.Ra3 Bb7 14.Rc3 Qb6+=) 13...Bb7 (13...Nd7 14.d4 f6 15.Re1+/-) 14.c4 Nd7 15.d4 f6 16.Nb7 Qb7 17.ef6 Nf6 18.Re1 (18.Ra6 Rhe8+-) 18...Rhe8+/- 19.Ng5 Kf8 20.Ne6 (20.Re6?! Nf7 21.Re8 Re8+=) 20...Kg8 21.d5 (21.Qd3 Rac8+/-) 21...Rac8 (21...a6 22.ba6 Ra6 23.Ra6 Qa6 24.Qd3+=) 22.Qd3 (22.Qd4 Qb8+/-) 22...Nf7 23.Qd4 (23.h3 Nd6 24.Rac1 h6+/-) 23...Qb6 24.c5 (better is 24.Qc3!?+/-) 24...Qb5= 25.h3 (better is 25.Re3!? Nd8 26.Ng7 Re3 27.fe3 (27.Qe3? Kg7 28.Qg3 Kf7-+) 27...Qc5 28.Qf6 Qe3 29.Kf1 Qd3 30.Ke1 Qe3 31.Kf1 Qd3 32.Kg1 Qe3 33.Kf1=) 25...Nd8-/+ 26.Ra7 Ne6 27.de6 (27.Re6?? Re6 28.Rg7 Kg7 29.de6 Qc5-+) 27...Qc5 28.Qa4 Qc4 29.Qa3? (better is 29.g4!?-/+) 29...Re6-+ 30.Re6 Qe6 31.Re7 Qf5 32.Qg3 Qg6 (32...g6 33.Qb3 Qd5 34.Qa3-+) 33.Qb3 (33.Qg6 hg6 34.g3 Kf8-+) 33...Kh8 34.Qb7?? (34.g3 h6-+) 34...Rg8 (better is 34...Rc1 35.Kh2 Ng4 36.hg4 Qd6 37.Re5 Qe5 38.g3 h5-+) 35.Kh2 h6 36.Qb5 Rd8 37.Re3 Qc2 38.Qb6 (38.Re2 Qc1 39.Qf5 Qc7 40.Qe5 Qd7-+) 38...Rg8 (38...Rd2!? 39.Rf3 Kh7 40.Qa7-+) 39.Rf3 Qg6 40.Rg3?? (40.Qc7 Qb1-+) 40...Qf7 (better is 40...Ng4! 41.Rg4 Qb6-+) 41.Qd4 Rc8 42.Qf4 Qd7 43.Re3 Ra8 44.Qe5 Re8 45.Qf4 Re3 46.Qe3 Qe8 (46...Kh7 47.Kg1-+) 47.Qd2 (47.Qe8 Ne8 48.Kg3 g6-+) 47...Qe4 48.Qa2 Kh7 49.Qb2 Nh5 50.Qa1 (50.Qd2 Qf5-+) 50...Nf4 51.Qf1 Nd3 52.f3 Qf4 53.g3 (53.Kh1 Qd2-+) 53...Qd2 54.Kh1 Kg6 0–1. Stripunsky,Alexander (2310) – Moskalenko,Viktor (2515), UKR–ch, 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 b5 6.c3 Nc6 7.a4 ba4 (7...Qc7 8.d4 cd3 9.Bd3 Ne5 10.Bb5 Bd7 11.Bf4=) 8.Qa4+= Bd7 9.b5 Nb8 10.d3 cd3 11.Be3 Ne7 12.Bd3 Qc8 (12...a6 13.Qd4+-) 13.Qa5 (13.c4 a6+-) 13...Qb7 (13...Nf5 14.Bb6!+-) 14.Nbd2 (14.Ba7 Nc8 15.b6 Nb6 16.Qb6 Qb6 17.Bb6 Ra1-+) 14...Nc8 (14...Nf5!? 15.Bg5 Qc8+-) 15.c4+- dc4? (better 15...Be7+-) 16.Be4 (16.Bc4?! Ne7+-) 16...Nc6 (16...Qb5 17.Qb5 Bb5 18.Ba8+-) 17.Qa4 (17.Qa4 N8e7 18.Nd4+- (18.Bc6?! Nc6 19.bc6 Bc6 20.Qc4 a5+-); worse 17.Bc6 Bc6 18.bc6 Qc6+-) 1–0. Von Rahden,Arvid – Wuttke,Stefan, JBL NO95/96 Germany, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3= b5 6.d4 a5 7.ba5 Qa5 8.Qd2 b4 9.Be2 c3 10.Qg5 Ba6 11.Ba6 Qa6 12.h4 Qc4 13.Rh3 Nc6 14.Qf4 h6 15.h5 Nge7 16.g4 b3 17.cb3 Qb3 18.Ng1 Nb4 19.Rc3 Qc3 20.Nc3 Nd3 21.Ke2 Nf4 22.Bf4 Nc6 23.Nb5 Kd7 24.Nf3 Be7 25.a4 Rhb8 26.Nc3 Rb2 27.Kf1 (27.Bd2!?-/+) 27...Rb3 28.Rc1 Bb4 29.Bd2 Bc3 30.Bc3 Ra4 31.Kg2 (31.Nd2 Rba3-+) 31...Rc4 (better is 31...Raa3 32.Bd2 Rf3-+) 32.Bd2 Rc1 33.Bc1 Rd3 34.Be3 Rd1 35.g5 hg5 36.Ng5 Ke7 37.Nf3 f6 38.ef6 gf6 39.Kg3 Kf7 40.Kg4 e5 41.de5 Ne5 42.Ne5 fe5 43.Kf5? (43.Bb6-+) 43...d4 44.Bg5 Re1 45.h6 Kg8 46.Kg6 (46.f3 d3 47.Bd2-+) 46...Rg1 47.h7 Kh8 48.Kf5 Rg5! 49.Kg5 d3 0–1. Jackson,Carl (1915) – Watkins,John, Rodos GRE, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Nc6 6.d3 b5 7.c3 (7.Nc3 a6+=) 7...cd3 (7...Qc7!? 8.Bf4 a5 9.dc4 dc4 10.ba5 Nge7=+) 8.Bd3+= a6 9.Qe2 Qb6 (9...Qc7 10.0-0+=) 10.Be3 (10.0-0 Bb7+-) 10...Qb8 (10...Qc7 11.a4 ba4 12.Bd2+=) 11.Bd4 Nge7 12.Nbd2 Ng6 The pressure on e5 grows 13.Nb3 (13.Qe3 a5+=) 13...Be7 14.a4 (14.Bg6!? hg6 15.Bc5=) 14...Nf4=+ 15.Qf1 Nd3 (15...ba4 16.Ra4 Bd7 (worse 16...Nd3 17.Qd3 Qc7 18.0-0+=) 17.Ra6 Ra6 18.Ba6 Bb4-/+) 16.Qd3+= 0-0 17.0-0 ba4 18.Ra4 a5 19.Rfa1 (worse 19.Na5 Ba6 20.Nc6 Bd3 21.Nb8 Ra4-/+) 19...Ba6 (worse 19...Nd4 20.Nbd4 (20.Nfd4?! Bd7 21.Ra5 Ra5 22.ba5 Qe5=) 20...Ba6 21.Qe3+-) 20.Qe3 Bb5 (worse 20...Nd4 21.Nfd4 (worse 21.Qd4 Bd8+=; 21.cd4?! Bb4 22.Na5 Qb5=) 21...Rc8 22.Ra5+- (22.ba5?! Qc7+=)) 21.R4a3 a4 22.Bc5?? (better 22.Nc5=) 22...ab3-+ 23.Ra8 b2 (23...Qa8 24.Ra8 Ra8 25.Qc1-+) 24.Rb1 Qa8 25.Be7 Ne7 26.Qc5 (26.Qd2-+) 26...Bd3 (26...Bd3 27.Re1 Qa1-+) 0–1. Vakulenko,Aleksandr – Zvorskyy,Bohdan, Lviv Winter Cup, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Nc6 6.d4 f6 7.Be2 Bd7 8.0-0 fe5 9.de5 Nge7 10.b5 Nb8 11.Ng5 (11.Nd4+=) 11...Nf5 (better 11...Qc7!?=) 12.Bg4 (better 12.Bh5 g6 13.Nh7+-) 12...Be7? (12...Qc7 13.c3 Qb6 14.Bf5 ef5 15.Qd5 h6+-) 13.Bf5+- ef5 14.e6 Bg5 (14...0-0 15.ed7 Qd7 16.Nf3+-) 15.ed7 Kf8?! (15...Nd7 16.Qh5 g6 17.Qg5 Qg5 18.Bg5 Nc5+-) 16.Bg5 Qd7 17.Qd4 Qb5 18.Nc3 Qd7 19.Nd5 Nc6 20.Qc5 (20.Qc5 Kg8 21.Qc4+-) 1–0. Llaneza Vega,Marcos – Gonzalez,Pablo, Asturias–ch a U18, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Qc7 6.d3 cd3 7.cd3 Nc6 8.d4 Nge7 9.Nc3 (better 9.Bd3+=) 9...Bd7?? (better 9...Ne5 10.Ne5 Qc3 11.Bd2 Qc7=) 10.Nb5+- Qb6 (10...Qb8 11.Nd6 Qd6 12.ed6+-) 11.Nd6 Kd8 12.Nf7 Ke8 (12...Kc7 13.Nh8 Nf5 14.Bd3+-) 13.Nh8 g6 (13...Nf5 14.Bb2+-) 14.Ng5 (14.b5 Na5 15.Ng5 Bg7+-) 14...h6 (14...Qd4 15.Qd4 Nd4 16.Bd3+-) 15.Ngf7 (15.Nh7 Qd4 16.Qd4 Nd4+-) 15...Nf5 16.Nd6! Bd6 (16...Nd6 17.Ng6 Zwischenzug (17.ed6 Passed pawn); 16...Bd6 17.Ng6 Zwischenzug (17.ed6 Passed pawn)) 17.ed6 g5 (17...Qd4 18.Qd4 Ncd4 19.Rb1+-) 18.Qh5 Kd8 19.Nf7 Kc8 20.Nh6 (20.Qg6 Nd8 21.Bd2 Nf7 22.Qf7 Qd8+-) 20...Ncd4 (20...Qd4 21.Ra2 Qc3 22.Bd2 Qe5 23.Be2 Nd6 24.Qg5+-) 21.Ra2 (better 21.Nf5 Nf5 22.Qh8 Qd8 23.Qd8 Kd8 24.Bg5 Ke8+-) 21...Qd6 (21...Nd6 22.Be3 e5 23.Qg5 Qc6 24.Bd4 ed4+-) 22.Nf5 Nf5 (22...Qe5 23.Ne3 Kc7 24.Rd2+-) 23.Qh8 Kc7 24.Qa8 Qe5 25.Be2 Bb5 26.Rc2 (26.Rc2 Bc4 27.Bg5+-) 1–0. Monteiro,Joa – Martin Fuentes,P, XIX EYCC Girls U16, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Qc7 6.d4 Bd7 7.Nc3 a5 8.b5 a4 9.Be2 Ra5 10.Rb1 b6 (10...Qb6 11.0-0=) 11.0-0+= Ne7 12.Nh4 (12.Bd2 Ra7+=) 12...Nc8= 13.f4 g6 (13...Na7!?=) 14.f5+= Na7 The pressure on b5 grows 15.fe6 Be6 16.Bg4 Be7 17.Be6 fe6 18.Ng6 (better 18.Qg4!? Qd7 19.Qh3+-) 18...hg6=+ 19.Qg4 Qd7 20.Qg6 Kd8 21.Bg5 (21.Rf7 Re8 22.Bg5+-) 21...Bg5-/+ (21...Nb5? 22.Nb5 Rb5 23.Be7 Kc8 24.Rb5 Qb5 25.Qe6 Kb7 26.Bb4+-) 22.Qg5 Qe7 23.Rf6 Nd7 24.Rbf1? (better 24.Rg6-/+) 24...Nf6-+ 25.Rf6 (25.Qf6 Qf6 26.ef6 Nb5 27.Nb5 Rb5 28.g4-+) 25...Nb5 26.Qg6 (26.Nb5 Rb5 27.h3 Rb1 28.Kh2 Re8-+) 26...Nc7 (better 26...Nc3 27.Re6 Ne2 28.Kf2-+) 27.Rf7 Qh4 28.Kf1 (28.Qf6 Kc8 29.Rf8 Kb7 30.Qh8 Qd4 31.Kf1 Qc3 32.Rb8 Kc6-+) 28...Qh6 29.Qg4 (29.Qf6 Qf6 30.ef6 Rh6-+ (30...Rh2?! 31.Rf8 Kd7 32.f7-+)) 29...Rf8 30.Qf3 Ke8 (better 30...Rf7 31.Qf7 Qc1 32.Kf2 Qa3 33.Qg8 Kd7-+) 31.Rc7 (31.Rf8 Qf8 32.Qf8 Kf8 33.Ke2-+) 31...Rf3 32.gf3 Qc1 33.Kf2 Qc2 34.Ne2 Rb5 (34...Rb5 35.Rc6 Kf7 36.Rc7 Kg6-+) 0–1. Montoya,Duvan (2050) – Dabraccio,Guillermo (1725), 1st Torneo Nacional IRT SUB, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Nd7 6.d4 cd3 7.cd3 Ne7 8.d4 Nc6 9.b5 Na5 10.Bd3 Be7 11.h4 (11.0-0 a6+=) 11...h6 12.Rh3 Nb6 13.Nc3 Bd7 14.h5 Qc7 15.Ne2 Nbc4 16.a4 a6 17.Rg3 Bf8 ½–½. Hassan,Sayed Barakat (2345) – Sorial,Hanna (2265), Golden Cleopatra op 3rd, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Nd7 6.d4 Ne7 7.Nc3 (7.Be2 Nf5=) 7...a6 (7...Nf5 8.Bg5 Be7 9.Be7 Qe7 10.g4=) 8.Bg5 (8.Be2 Nf5=) 8...h6= 9.Bh4 (9.Bf4 Nf5=) 9...g5 10.Bg3 Nf5 11.Ne2 (11.Be2 g4 12.Ng1 A) worse 12...Ng3 13.hg3 (worse 13.fg3 h5=+) 13...b5 14.Bg4+-; B) 12...h5=+) 11...Be7 12.c3 b5 (12...h5 13.h4 g4 14.Ng5=) 13.a4 Bb7 14.ab5 ab5 15.Ra8 Qa8 (15...Ba8 16.Qa1=) 16.h4 (16.h3 Ng3 17.Ng3 Qa3=) 16...g4=+ 17.Nh2 (17.Nd2 Qa4=+) 17...h5 18.Bf4 Nh4 (18...Bh4?! 19.g3 Be7 20.Ng4=) 19.Bd2 (19.Be3 Qa4=+) 19...Ng6 20.f3 (20.Nf4 Nf4 21.Bf4 f5-/+) 20...Nb6 (better 20...g3!? 21.Ng3 Bh4-/+) 21.fg4=+ hg4 22.g3 (better 22.Ng3=+) 22...Kd7?? (better 22...Ne5 23.de5 d4 24.Nd4 Bh1 25.Ng4 Qb8-+) 23.Bg2= Qg8 24.Kf2 (24.Nc1 Qh7=) 24...Nf8 (24...Qg7!?=+) 25.Nf4= Na4 26.Qg4 (26.Ng4 Rh1 27.Bh1 Kd8+=) 26...Qg4 (26...Ng6 27.Ng6 fg6 28.Ke2=) 27.Ng4+= Rh1 28.Bh1 Nh7 29.Bf3 (29.Bg2 Nb2+=) 29...Ng5 30.Bg2 Ke8 (30...Ne4 31.Be4 de4 32.Nh5+=) 31.Nh5 Nh7 32.Nhf6 (32.Ke2 Kd7+=) 32...Nf6 33.Nf6 Kd8 (33...Bf6 34.ef6 Nb2 35.Bf1+=) 34.Bf3 (34.Ng8 Nb2+-) 34...Bc6 (34...Bf6 35.ef6 Nb2 36.Ke3+-) 35.Bd1 (35.Ng8 Ke8+-) 35...Nb2 (35...Bf6 36.ef6 Nb6 37.g4+-) 36.Bc2+- Na4 (36...Bf6 37.ef6 Bd7 38.Ke3+-) 37.Nh7 (37.g4 Nb6+-) 37...Be8 (37...Bb7 38.g4+-) 38.Ke2 (38.g4 Bh4 39.Ke2 Bc6+-) 38...Kc8 (38...Bc6 39.g4+-) 39.Kd1 (39.g4 Bc6+-) 39...Nb2 40.Kc1 Na4 41.Ba4 (41.g4 Bh4+-) 41...ba4+= 42.Bg5 Bg5 43.Ng5 Kd8 44.Kb2 Ke7 45.Nh7 Bb5 46.Ka3 Ke8 47.Nf6 Kf8 48.Ng4 Kg7 49.Ne3 Kg6 50.Nd1 (50.Kb2 Kg5+=) 50...Kf5 51.Nb2 The isolani on a4 becomes a target (better 51.Nf2!?=) 51...Ke4-/+ 52.g4 Ke3 53.g5 (53.Na4 Kd3 54.g5 Ba4 55.Ka4 Kc3-+) 53...Kd2-+ 54.Na4 Ba4 55.Ka4 Kc3 56.b5 Kd4 57.b6 c3 (57...Ke5?? 58.b7 Kf4 59.b8Q Kg5 60.Qe5 Kg6 61.Kb4+-) 58.b7 (58.Kb3 Kd3 (58...Ke5?? 59.b7+-) 59.b7 c2-+) 58...c2 59.b8Q c1Q 60.Qd8 Qf4 61.Kb5 Ke5 62.Qc7 Kf5 (better 62...Ke4!? 63.Qc2 Kd4 64.Qd1 Ke3 65.Qc1 Kf3 66.Qd1 Kf2 67.Qc2 Ke1 68.Qc3 Ke2 69.Qb2 Kf3 70.Qa3 Kg4-+) 63.Qf7 Kg5 64.Qe6 ½–½. Larsen,Peter (2255) – Alberts,Hendrik Jan (2175), EU–ch Union SCIPT, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.b5 Bd7 6.a4 a6=+ 7.ba6 Ra6 (worse 7...ba6 8.d3+=) 8.Nc3 Bb4 (8...b5 9.d3 Qa5 10.Bd2=+) 9.Rb1 (9.Bb2 Bc5 10.Ba3 Ba3 11.Ra3 b5=+) 9...Bc3 10.dc3 Bc6 11.Nd4 Ne7 (worse 11...Ba4 12.Qg4 g6 13.Rb7=) 12.Bg5 (12.Qg4 0-0-/+) 12...Qc7 (12...Ba4?! 13.Rb7 Nd7 14.f4=+) 13.f4 Ba4 14.Be2 Nd7 (14...Ng6 15.0-0-/+) 15.0-0 Nc5 16.f5 Ne4 (16...Qe5 17.Re1 Qd6 18.fe6 fe6 19.Bg4-/+) 17.Be7-/+ Qe7 18.fe6 fe6 19.Qe1 Rf8 (19...Qc7 20.Bf3 Nc5 21.Qg3-/+) 20.Bh5 (better 20.Rf8 Kf8 21.Bc4 Bc2 22.Ba6 (22.Nc2?! Qc5 23.Nd4 Qc4 24.Rb7 h6=) 22...Bb1 23.Bf1=) 20...g6-/+ 21.Rf8 Kf8 22.Bg4 Be8 23.Qe3 Bf7 24.Qh3 (24.Bf3!? Nc5 25.Nb5-/+) 24...h5 25.Be2 (25.Rf1 Ra3 26.g3 Rc3-+) 25...Ra3 26.Qe3 Rc3 27.Qh6 Kg8 28.Ra1 Qf8 (28...Ra3 29.Rd1 Nc3-+) 29.Qc1?? (better 29.Qf8 Kf8 30.Ra7-+) 29...Qc5 30.Ra8 Kh7 (30...Kg7 31.Qd1 Rd3 32.Qf1 Qd4 33.Kh1-+) 31.Qf1 (31.Qd1 Rc2 32.Ra5 Qa5 33.Nc2 Qb6 34.Qd4 Qb1 35.Qd1 Qd1 36.Bd1-+) 31...Qd4 32.Kh1 Qf2 33.Qf2 Nf2 34.Kg1 Ne4 35.Rb8 (35.Bd1 Re3 36.Kf1 Nc3-+) 35...Rc2 36.Rb7 (36.Bf1 Rc1 37.Rb7 Kg7-+) 36...Kg7 37.Bf1 Rc1 38.Rb2 (38.h4 d4 39.g4 Nd2-+) 38...c3 (38...c3 39.Ra2 d4-+) 0–1. De Needleman,Carla – Sidselrud,Laila, Novi Sad ol (Women), 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 a6 6.a4 Be7 (6...Nc6 7.d4+=) 7.d4 cd3 8.Bd3 Nd7 9.h4 (9.a5 Qc7 10.Bf4 g5 11.Ng5 Ne5+=) 9...h6 (better 9...a5=) 10.Nbd2 (better 10.a5+=) 10...Qc7-/+ 11.Bb2 Ne5 12.Be2 (12.Ne5 Qe5 13.Qe2 Qe2 14.Ke2 e5-/+) 12...Bf6 (12...Nf3 13.Bf3 Nf6 14.Rc1-+) 13.Nd4 Nc6 14.N2b3 Bd7 15.Nc5 Nge7 16.Rc1 b6 (16...Ng6!?-/+) 17.Na6=+ Qb7 18.Nb5 (18.Nc6 Nc6 19.b5 Na5=+) 18...0-0 (18...Be5 19.Na3-/+) 19.Nd6 Qa7 20.g4? (20.b5 Nb8-/+) 20...Ng6 (better 20...Be5!? 21.b5 Bd6 22.bc6 Bc6-+) 21.g5 (21.b5 Nb8-/+) 21...hg5 22.hg5 (22.b5 Nb8 23.h5 Nf4-+ (23...Na6 24.hg6 Nc5 25.gf7 Rf7 26.Bd3+-)) 22...Bg5 23.Bf1 (better 23.Ra1 Be7 24.Nb5 Qa6 25.Nc7-+) 23...Nce5 (better 23...Bf4!? 24.b5 Bd6-+ (24...Bc1 25.Bc1 Rfd8 26.Qh5+-)) 24.b5 (24.Qh5 Rfd8 25.Ra1 Bh6-/+) 24...Be8 (24...Bc1 25.Bc1 f6=) 25.Qh5=+ Bh6 26.c4 Nd7?? (better 26...f6=+) 27.cd5+- Nc5 (27...Nf4 28.Qf3 Nd5 (28...ed5?? 29.Rh6 Ng6 30.Rh3+-) 29.Rh6 f6+-) 28.Rc5! bc5 29.Bg7 Kg7 (29...Bd2 30.Kd2 Kg7 31.Qh6 Kf6 32.Ne4 Ke5 33.Rh5 f5+-) 30.Qh6+- Kf6 31.Ne4 Ke7 (31...Ke5 32.Rh5 f5+-) 32.Qg5 Kd7 (32...f6 33.Rh7 Rf7 34.Qg6 Kd8 35.Nac5 ed5 36.Ne6 Kc8 37.Nd6 Kb8+-) 33.de6 Kc8 34.Nd6 1–0. Helin,Mikael – Rennerfelt,G, Stockholm op2, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 a6 6.b5?? ab5 7.Be2-+.

5.c3 a6 6.b5?? Nd7 7.d4 (7.ba6 Qc7 8.d4 cd3-/+) 7...cd3 (better is 7...ab5 8.Be2 b4 9.cb4 Bb4 10.Bd2 Qa5-/+) 8.Bd3= (worse is 8.Qd3 Ne7 9.Be3 ab5-/+) 8...f6 9.0-0 Qc7 (9...fe5 10.Ng5 Ndf6 11.ba6 ba6 12.c4-/+) 10.Re1 (10.Bf4 Ne7 11.Bg3 Ne5 12.Ne5 fe5 13.Qh5 g6 14.Qe5 Qe5 15.Be5 Rg8=) 10...Ne5= 11.Ne5 fe5 12.Qh5 Kd8 13.b6 Qb6 14.Qe5 Nf6 15.Bg5 Be7 16.c4 Rf8 17.Nc3 h6 18.Rab1 Qc7 19.Qc7 Kc7 20.Bf4 Kd8 21.cd5+= Nd5 22.Nd5 ed5 23.Bc7 Kc7= 24.Re7 Kd6 25.Rg7+/- Bf5 26.Bf5 Rf5 27.Rgb7 Rc8 28.R7b6 Ke5 29.Re1+/- Kd4 30.Rd1 Ke4?? 31.Re1 Kd4+/- 32.Rd1 Ke5 33.Rb5?? Kd6 34.Ra5+/- Rc2 35.f4 Rc5? 36.Ra6+- Rc6 37.Rc6 Kc6 38.g3 Kc5 39.Kf2 Rf6 40.Kf3 h5 41.a4 Kc4 42.a5 Ra6 43.Ra1 Kc3 44.f5 d4 45.Ke4 Ra8 46.Ra3 Kc4 47.a6 d3?? 48.Ke3 Re8 49.Kd2 Re2 50.Kd1 Rh2 51.a7 Rh1 52.Kd2 Rh2 53.Ke3 d2 54.a8Q 1–0. Havelka,Josef (1855) – Santos Ruiz,Miguel (2065), European Youth Chess Championship U14, 2012. (=1.e4 e6 2.Nf3+= d5 3.e5 c5 4.b4 c4)

5.c3 a6 6.d3!?+=.

5.c3 b5 6.a4 Bd7 7.Be2 a6 8.ab5+- Bb5 9.0-0 Qc7 (better 9...Ne7!?+-) 10.Na3+- Bc6 11.b5 ab5 12.Nb5! Ra1?? (12...Bb5 13.Ra8 Discovered attack (13.Ra8 Deflection; 13.Ra8 Overloading)) 13.Nc7 Kd8 (13...Kd7 14.Nd5! Bd5 15.d3 cd3 16.Qd3+-) 14.Ne6! fe6 15.d3 Ba4 (15...Kc8 16.dc4 Ba3 17.cd5 Be8+-) 16.Bg5 Kd7 17.Qa1 (17.Qa1 Bb3 18.Qa7 Ke8 19.Qb8 Kf7 20.Qc7 Ke8 21.Bf6 h6 22.Nd4 h5 23.Qc6 Kf7 24.Qe6 Kg6 25.Qf5 Kf7 26.e6 Ke8 27.Qg6) 1–0. Marcus – 5088, internet, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 b5 6.d4 a5 7.ba5 Qa5 8.Bd2 Ba3 (8...Nc6 9.Be2=) 9.Na3+= Qa3 10.Be2 Ne7 11.0-0 Bd7 12.Ne1 (12.Qc2 0-0+=) 12...Qb2= 13.Rb1 Qa2 14.Nc2 Qa6 15.Ra1 Qb7 16.f4 (16.Ra8 Qa8 17.Bg5 Nbc6=) 16...0-0 17.g4 (17.Ra8!? Qa8 18.Qa1=+) 17...Nbc6 18.Qe1 Na5 19.Qh4 (19.Bc1 Nec6-/+) 19...Ng6 (19...Nb3 20.Ra8 Ra8 21.Be3-/+) 20.Qh5 White prepares the advance f5 20...Be8 (20...Nb3!? 21.Ra8 Qa8-/+) 21.f5= Ne7?? (better 21...f6 22.Qh3 Nb3 23.Ra8 Qa8=+) 22.f6+- Ng6 23.Rf3 Bc6 (23...Nb3 24.Rh3 Ra1 25.Na1 h6 26.Bh6 Qa8 27.Bc1 Nh4 28.Qh4 Nc1 29.Qh7) 24.Rh3 Rfc8 (24...Nh4 25.Rh4 h6 26.Bh6 g6 27.Bg7 gh5 28.Rh5 b4 29.Rh8) 25.Qh7 Kf8 26.Qh8!! Nh8 (26...Nh8 27.Rh8) 27.Rh8 1–0. Bolleman,Jean Pierre – Lacoste,G, Chartres op, 1990. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Nc6 6.d3 cd3 7.Bd3 (7.b5 Na5 8.Bd3+=) 7...g6 (7...f6 8.0-0 fe5= (worse is 8...Ne5 9.Ne5 fe5 10.Qh5 g6 11.Bg6 Kd7 12.Bc2+/-)) 8.0-0 (8.b5 Na5+/-) 8...Bg7+= 9.Qc2 (9.Re1 a6+=) 9...Nge7 (9...Ne5 10.Ne5 Be5 11.Nd2+=) 10.Na3 (10.Re1 a6+=) 10...0-0 (10...Ne5 11.Ne5 Be5 12.f4-/+) 11.Nb5 (11.Re1 f6 12.ef6 Rf6+=) 11...f6 (11...Ne5!? 12.Ne5 Be5-/+) 12.ef6= Bf6 13.Bh6 Re8 14.Nbd4 (better is 14.Rad1!?=) 14...e5-/+ 15.Nc6 Nc6 (15...bc6 16.Be2-/+) 16.Bb5 (better is 16.Bg6!? Re7 17.b5=) 16...a6 17.Bc6 bc6 18.Be3 a5 19.b5 (19.h3 e4 20.Nd4 Ba6-/+) 19...e4 (better is 19...cb5!? 20.Rfd1 b4-+) 20.Nd4+= c5 (20...cb5!? 21.Nb5 Ba6+=) 21.Nc6 Qb6 22.Rad1?? (better is 22.Qa4+=) 22...Be6?? (better is 22...Qb5 23.Rd5 Qc6 24.Rc5 Qe6-+) 23.Qb2 (23.a4 Bg7=) 23...Bd7 (23...a4 24.Rb1=) 24.Rd5 Bc6+= 25.Rc5 Bd7 26.Rc6 Qd8 27.Qb3 Kg7 28.Rd1 Bc6?? 29.Rd8+- Red8 30.bc6 Rab8 31.Qc2 Rbc8 32.h4 Rc6+/- 33.Qe4 Rdc8? 34.h5! Rc3 35.h6 Kf8 36.Qd5 Be7?? 37.Bd4 Rc1 38.Kh2 R8c6 39.Bg7 Ke8 40.Qg8 Kd7 41.Qh7 Re6 42.Qg8 Bd6 43.g3 Ree1 44.h7 1–0. Frischmann,Rick (1945) – Brodmann,Anton (1840), DEM Oberhof U16, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Nc6 6.d4 Qb6 7.a4 a5 (7...Nh6 8.Bh6 gh6 9.Be2+=) 8.b5+= Nb8 (8...Nce7 9.Be2+=) 9.Be2 g6 (9...Nd7 10.Na3+-) 10.0-0 Bg7 11.Ba3 Nd7 12.Qc1 Qc7 (12...Ne7 13.Qf4+-) 13.Qf4+- Nb6 14.Bd6 Qd7 15.Bc5 (15.Nbd2 Ne7+-) 15...Qc7 16.h4 (16.Nbd2 Ne7+-) 16...Nh6 (16...h6 17.Nbd2+-) 17.h5 (17.Nbd2 Nf5+-) 17...Nf5 18.g4 Nd7? (better 18...Bh6 19.Qh2 Ne7+-) 19.gf5 Nc5 20.f6 (20.dc5?! gf5 21.Nbd2 Bf8+-) 20...Bf6 (20...Bf8 21.dc5 Rg8+-) 21.Qf6 (21.dc5?! Be7+-) 21...Ne4 (21...Rg8 22.dc5 h6+-) 22.Qh8 Ke7 23.Qh7 gh5 24.Nh4 Ng5 25.Qg7 Nh3 26.Kh2 Nf4 27.Rg1 Ne2 (27...Ra6 28.Bh5 Qe5 29.Qf7 Kd6 30.de5 Kc5 31.Qc7 Rc6 32.bc6 b5 33.Be8 d4 34.Qa7 Kd5 35.Qd4) 28.Ng6 Kd8 (28...Kd7 29.Qf7 Kd8 30.Qf8 Kd7 31.Qe7) 29.Qf8 (29.Qf8 Kd7 30.Qe7) 1–0. Janek – Vytold, internet, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Nd7 6.d3 a5 7.dc4+= dc4 8.Bc4 ab4 9.0-0 Qa5 10.a4 (10.cb4 Bb4 11.Bb2 Ne7+=) 10...Nb6 (10...bc3 11.Qd3 Bb4 12.Bb5+=) 11.Bb5 Bd7 12.cb4 Bb4 13.Na3 Bc6 (13...Rd8 14.Qb3+=) 14.Nd4+- 0-0-0 (14...Bb5 15.Nab5 (15.ab5?! Bc3 16.Rb1 Ne7=) 15...Na4 16.Qc2+-) 15.Bc6 (15.Be3 Ne7+-) 15...bc6+- 16.Qf3 (16.Qg4 Ne7 17.Be3+- (17.Qg7?! Rhg8 18.Qf7 Rd4=)) 16...Rd4= 17.Qc6 Kb8 (17...Kd8 18.Nc2 Rd5 19.Nb4 Qb4+-) 18.Qe8+- Nc8 19.Nc2 Rd8 20.Nb4 Re8 21.Nc6 Ka8 22.Na5 Nge7 23.Rb1 (23.Nc4 Nd5+-) 23...Nd5 24.Be3 Nce7 25.Rb7 Nc6 26.Rf7 (26.Nc6 Kb7 27.Na5 Ka6=+) 26...Na5? (26...Re7 27.Re7 (27.Nc6?! Rf7 28.Nd4 Ne3 29.fe3 Rf1 30.Kf1 Re8=) 27...Nce7 28.Bc5+-) 27.Ra7 Kb8 28.Rb1 Kc8 29.Ra5 Ne3 30.Rc5 Kd8 31.Rb8 (worse 31.fe3 Ke7 32.Rc7 Kf8+-) 31...Kd7 32.Rb7 Kd8 33.fe3 (33.fe3 Rhf8 34.Rcc7+-) 1–0. Cacho Reigadas,S (2440) – Ramon Perez,J (2270), TCh–ESP Barcelona ESP, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Nd7 6.d3 cd3 7.Bd3 a5 8.b5 Qc7 9.Bf4 (9.Qe2 Ne7+=) 9...Ne7= 10.Bg3 Ng6 Can e5 get defended? 11.Qe2 Be7 12.h4 Nc5 13.Bc2 Nf8 14.h5 h6 15.Nd4 b6 16.Qg4 Rg8 17.a4 (17.Nc6 a4+=) 17...Bb7= 18.0-0 0-0-0 19.Re1 Kb8 20.Na3 (20.Nd2 g6+=) 20...Nfd7 (20...g6 21.Re3=) 21.Nc6 (better 21.Bh7!?+/-) 21...Bc6= 22.bc6 Qc6 23.Nb5 Ka8 24.Nd4 Qc8 25.Rab1 Qa6 (25...Rdf8 26.Bh7 Rh8 27.Qg7 Na4 28.Rec1 Nc3 29.Rc2=) 26.Rb5 Rc8 (26...Qb7 27.Qf3 Rgf8 28.Reb1+=) 27.Reb1 Rc7 (27...Qb7 28.Ra5! ba5 29.Rb7 Kb7 30.c4+/-) 28.Qf3 (28.c4!? Qb7+-) 28...Rf8+/- 29.c4 Qb7 (29...Ne4 30.Be4 de4 31.Qe4 Qb7 32.Ra5 Kb8 33.Qd3+/-) 30.Ra5!+- ba5 31.Rb7 Kb7? (better 31...Nb7 32.cd5 Rc4 33.de6 Ndc5+-) 32.cd5 ed5 33.Qd5 Ka6 (33...Kb6 34.e6 fe6 35.Ne6+- (worse 35.Bc7 Kc7 36.Qc6 Kb8+-)) 34.e6 fe6 35.Qc4 Kb7 36.Bc7 Kc7 37.Ne6 Kd6 38.Nf8 Nf8 (38...Bf8 39.Qb5+-) 39.Qd4 Kc6 40.Qg7 (40.Qg7 Bd6 41.Qh6+-) 1-0. zsolti_83 (2510) - papasi (2590), Rated Blitz game, lichess.org, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Nd7 6.d3 cd3 7.Bd3 Qc7 8.0-0 (8.Qa4 Kd8 9.Bf4 f6=) 8...Ne5=+ 9.Ne5 Qe5 10.Bb5 Bd7 11.Bd7 Kd7 12.Qa4 (12.Re1 Qc7=+) 12...Kd8-/+ 13.Be3 Bd6 14.g3 Qh5 15.Na3 (15.Qb5 Kc7=+) 15...Nf6-/+ 16.f3 Nd7 (16...a6 17.c4-/+) 17.Rad1=+ Ke7 18.c4 Ne5 19.Kg2 (19.Qb3 dc4 (19...Nf3? 20.Rf3 Kf8 21.Kg2+-) 20.Nc4 Nc4 21.Qc4 Rhc8=+) 19...b5 (19...Nc4 20.Nc4 dc4-/+) 20.Qb5 (20.cb5 Rhc8=) 20...Rhb8 (20...Rab8 21.Qa5 Rb4 22.Qa7 Kf6 23.Bd4+= (23.cd5 Rb2 24.Rd2 Rd2 25.Bd2 Rc8+-)) 21.Qa6= Rb4 22.cd5 Rb2 23.Rd2 Rab8 24.Nc2 ed5 25.Bd4 Rb1 26.Be5 Qe5? (better 26...Be5 27.Rb1 Rb1 28.Qa7 Kf6+-) 27.Re2 R1b2 28.Re5 Be5 29.Rf2 R8b7 (29...R8b6 30.Qa7 Kd6 31.Qf7+-) 30.Re2 f6 31.f4 Kd7 32.fe5 (32.fe5 fe5 33.Kh3+-) 1–0. Martincevic,Ninoslav (2245) – Laengl,Juergen, Oberliga Wuert9192, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 f6 6.d3 cd3 7.Bd3 Nc6 8.b5 Nce7 9.Qe2 f5 (9...Ng6 10.0-0+=) 10.a4 Nh6 (10...a6+-) 11.Nbd2 (better 11.0-0!?+-) 11...Ng6= 12.Nb3 Qc7 13.0-0 Be7 (13...Ng4 14.Re1 Qc3 15.Bd2 Qb3 16.Reb1+-) 14.Bd2 Nf7 e5 becomes the focus of attention 15.Rfe1 0-0 16.Rac1 Ba3 17.Rc2 Qe7 18.Ra1 Bd7 19.Rca2 Bc5 20.Nc5 Qc5 21.Rc2 Rfc8 22.Bf5 (22.c4 d4 23.Re1 a5+=) 22...ef5= 23.e6 Be8 (23...Qe7 24.ef7 Qf7 25.Ng5+=) 24.ef7+= Bf7 25.Ng5 Nh8 (25...Qc4 26.Qh5 Qh4 27.Qf3+=) 26.Be3 Qc4 27.Bd4 (27.Qf3 a6+=) 27...Qe2 (27...Re8 28.Qc4 dc4 29.Rd1+=) 28.Re2+- Re8 (28...Ng6 29.a5+-) 29.Rae1 (29.Re8 Re8 30.Ba7 Bh5+-) 29...Re2 30.Re2 a6 31.g3 ab5 32.ab5 Ng6 33.h4 h5 34.b6 Be8 (34...Ra1!? 35.Kg2 Ra8+=) 35.Ne6+- Bb5 36.Rb2 Ra1 37.Kh2 Bd3 38.f3 (38.Bg7?? Be4 39.f3 Bf3-+; 38.Ng7 Be4 39.f3 Bf3-+) 38...Rf1 39.Kg2 Ne7 (39...Rd1 40.Ng7 Kf7+-) 40.Be5?? (40.Nc5 Rd1 41.Nb7 Nc6+-) 40...Kf7?? (better 40...Re1 41.Nf4 Re5 42.Nd3 Re6+=) 41.Nc5 (41.Nd8!? Ke8 42.Nb7 Nc6+-) 41...Bc4 (41...Rd1 42.Nb7 Nc6 43.Bd4+-) 42.Nb7 (42.Nb7 Nc6 43.Nd6 Ke6 44.b7+-) 1–0. Therkildsen,Thomas (2140) – Coupet,Pascal (2280), Nationale II French, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 f6 6.d3 cd3 7.Bd3 fe5 8.Ne5 Nf6 9.Bg5 (9.Bf4 Be7+=) 9...Bd6= 10.Qe2 0-0 11.f4 Qc7 12.0-0 Nc6 13.Nc6 bc6 14.g3 e5 15.fe5 Be5 16.Bf4 Ng4 17.Be5 Rf1 18.Kf1 Ne5 19.Bh7 Kh8 20.Bc2 Bg4 (20...Bh3 21.Ke1 Bg4 22.Qf2=+) 21.Qe3 (21.Qf2 Nf3 22.Kg2 Re8=+) 21...Rf8 22.Kg2 Qf7 23.Nd2 (better 23.Na3=) 23...Qh5?? (23...Bh3 24.Kh3 Qh5 25.Kg2 Ng4-+) 24.Re1 (24.Kg1 a6 25.Re1+-) 24...Qh3 (better 24...Bf3 25.Nf3 Nf3=) 25.Kg1+- Re8 (better 25...Bf5 26.Bf5 Rf5 27.Qa7 Kh7+-) 26.Qg5 (better 26.Qa7 Qh5 27.a4+-) 26...Bf3+= 27.Qh4 Qh4 28.gh4 Bh5 29.Kg2 Kg8 30.Nb3 Ng4 (30...Kf7 31.Nd4+=) 31.Re8+- Be8 32.Nd4 Kf7 33.Kg3 Ne5 34.Kf4 Kf6 35.Nf3 Nf3 36.Kf3 Ke5 37.Ke3 Bd7 38.Bg6 Kf6 39.Bh5 Ke5 40.a3 Bc8 41.Be8 Kd6 42.Kf4 Ba6 43.h5 Be2 (43...c5 44.Kg5 Bd3 45.h6 gh6 46.Kh6=) 44.Kg5 Bd3 45.Bg6 Be4 46.h4 c5 47.Be4 (47.h6!? Bg6 48.bc5 (worse 48.Kg6 gh6 49.bc5 Kc5 50.Kh6 Kc4+-) 48...Kc5 49.Kg6 gh6 50.Kh6+-) 47...de4+- 48.Kf4 cb4 49.cb4 (49.ab4 Kd5 50.b5+-) 49...Kd5= 50.Ke3 Kc4?? (better 50...Ke5+-) 51.Ke4+- Kb3 52.Kf5 Ka3 53.Kg6 Kb4 54.Kg7 (54.Kg7 a5 55.h6+-) 1–0. Nabuurs,J (2225) – Seip,R (2010), 3rd ENCI Limburg Open, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.d3 Bb4 6.c3 Ba5 7.dc4 Nc6 8.Bf4 (8.cd5 Qd5 9.Qb3 Nge7=) 8...Nge7 9.Bg3 (9.cd5 Nd5 10.Bd2 Qc7=+) 9...Nf5 (9...d4=+) 10.c5 (10.Bf4 d4=+) 10...Bc7 (10...Ng3 11.hg3 Qe7 12.Rh4-/+) 11.Bb5 Bd7 12.Qe2 Ng3 (12...Qe7 13.Bf4-/+) 13.hg3 Qe7 14.Bc6 Bc6 15.Qe3 f6 16.0-0 (16.Nbd2!?=+) 16...0-0-/+ 17.Nbd2 fe5 18.Ne5 Be5 19.Qe5 Qc5 20.Qe6 Kh8 (20...Rf7 21.Rac1-/+) 21.Qe5 (21.Qe3!? Qe3 22.fe3-/+) 21...Bb5 22.c4 Bc4 23.Nc4 Rae8 24.Qg5 h6 25.Qh5 Qc4 26.Rac1 Qa2 27.Rc7 (27.Ra1 Qb2-+) 27...Re1! 28.Re1 Qf2 29.Kh2 Qe1 30.Qd5 Qa1 (30...Qe8!? 31.Rb7 a6 32.Rb6-+) 31.Rb7-/+ a6 32.Ra7 Qf6 33.Qc4 The isolani on a6 becomes a target 33...Qf5 34.Ra6 ½–½. Olsarova,T (2240) – Sedina,E (2335), Mitropa Cup Women, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.d3 Bb4 6.c3 Be7 7.dc4 Nc6 8.Bf4 Bc5 9.Nbd2 Nge7 10.Bd3 Ng6 11.Bg3 f5 (11...Qa5 12.Qb3=) 12.ef6 Qf6 13.0-0 0-0 14.Qc2 (14.cd5 ed5 15.Qb3 Be6=) 14...Nce7 15.Nb3 Bb6 16.c5 Bd8 17.Rae1 Nf5 18.Be5 (18.c4 Bd7+=) 18...Ne5= 19.Ne5 (worse 19.Re5 Bc7 20.Bf5 Be5 (worse 20...ef5 21.Rd5 Be6 22.Rd2+=) 21.Bh7 Kh8 22.Ne5 Qe5=+) 19...g6 20.Nd4 Bc7 21.f4 Qe7 22.Bf5 gf5 23.Rf3 (23.c6 Bb6+=) 23...Qc5= 24.Qf2 Qe7 25.Rg3 Kh8 26.Rg5 Be5 (26...Qf6 27.Qe2=) 27.Re5 Attacks the backward pawn on e6 27...Qf6 (27...Qc5 28.Ne6 Qf2 29.Kf2 Be6 30.Re6+-) 28.Qh4 (28.Qe3!? h6 29.Rg3+-) 28...Bd7= 29.Re3 Rf7 (29...Rac8 30.Qh3=+) 30.Reg3 (30.Qe1 Re8=) 30...e5=+ 31.Nf3 (31.fe5!? Qe5 32.h3=) 31...Qb6 32.Kh1 e4 33.Rg6 Qg6 (33...Be6 34.Ng1 Qd6+-) 34.Rg6+- ef3 35.gf3 Bc6 36.Rg2 Re8 (36...Rg8 37.Qe1 Rg2 38.Kg2+-) 37.Qf2 Rg7 38.Rg7 Kg7 39.Qa7 Re2 40.Qd4 Kg6 41.h4 Re6? (better 41...Re8+-) 42.Qh8 h6 (42...Re1 43.Kg2 h5 44.Qg8 Kf6 45.Qg5 Ke6 46.Qg6 Ke7 47.Qf5 Re2 48.Kg3 Ra2 49.Qe5 Kf7 50.Qh5 Ke7+-) 43.Qg8 Kf6 44.Qf8 (44.Qf8 Kg6 45.h5 Kh7 46.Qf5 Kg7 47.Qe6+-) 1–0. Olsarova,T (2185) – Uhlmann,W (2410), Czech Coal Match, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4) Kg6 50.Qc5 Qa1 51.Kg2 Qa8 52.Kf1 Qa6 53.Ke1 Qa1 54.Kd2 Qf6 55.Kc2 Qa6 56.Qd4 Qe2 57.Kc3 Qe1 58.Kc4 Qe6 59.Kb4 Qe1 60.Kc5 Qa5 61.Kc6 Qa6 62.Kc7 Qa5 63.Kd7 Qf5 64.Kd8 Qf8 65.Kc7 Qf7 66.Qd7 Qf3 67.Qc6 Kf5 68.Qf3 (68.Qc5 Ke4+=) 68...gf3= 69.Kd6 Ke4 70.Kc5 Kd3 71.g4 Ke2 72.g5 Kf2 73.g6 Ke1 74.g7 f2 75.g8Q f1Q ½–½. Price,Alan (1940) – Slomski,Matt (2030), US Amateur Team East, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 a5

6.ba5 Qa5 7.Bb2 Bc5 8.Bd4 Nc6 9.Bc5 Qc5 10.d4 Qb6 11.Nc3 (11.Qd2 Qb2 12.Qc3 Qc1 13.Ke2 Qf4=+) 11...Qa5 (11...Qb2!? 12.Ne2 Nge7=+) 12.Qd2= b5 13.Ra2 Nge7 14.Be2 Qb6 15.0-0 Ra5 16.Rb2 The backward pawn on b5 becomes a target 16...Ba6 17.Nb1 0-0 18.c3 Bc8 19.Nh4 (19.Bd1 Qc7=) 19...f6 20.ef6 Rf6 21.Qg5 (21.Nf3 Qc7=) 21...Nd8 (21...Qc7 22.Nf3=+) 22.f4 (22.Qg3 Nec6=) 22...Nf7=+ 23.Qg3 Nd6 24.Bf3 (24.Qe3 Qc7=) 24...Bd7 25.Re2 Ra8 26.Bg4 Ne4 27.Qe1 Raf8 28.g3 Be8 (28...g5 29.Ng2=+) 29.Bf3= Ng6 30.Be4 de4 31.Ng2 (better 31.Ng6!? Bg6 32.Nd2=) 31...e5-/+ 32.Qd2 (32.Ne3 Bc6 (worse 32...ed4 33.Nd5 Qc5 34.Nf6 Rf6 35.Re4 d3 36.Qe3 Qe3 37.Re3+=) 33.fe5 Rf1 34.Nf1 Ne5-/+) 32...ef4 33.Nf4 Nf4 34.Rf4 (34.gf4 Qc6 35.d5 Qc5 36.Qe3 Rg6 37.Kh1 Qd5 38.Rd2-+) 34...Rf4-+ 35.gf4 Qg6 36.Kf1 (36.Rg2 e3! 37.Qc2-+) 36...e3! 37.Qe3 (37.Qe3 Qb1 Discovered attack; 37.Re3 Rf4 Double attack (37...Qb1 Discovered attack; 37...Rf4 Decoy; 37...Rf4 Interception)) 37...Qb1 38.Kf2 Qh1 39.Qe6 (39.Qg3 Qc1 40.Re1 Qa3-+ (40...Rf4?! 41.Kg1 Qd2 42.Re8 Kf7 43.Re3=)) 39...Bf7 40.Qh3 Bd5 41.Qg3 Qc1 (41...Qc1 42.Re3 Qb2 43.Kf1 Qa3-+) 0–1. Casillas Pellate,Jesus (2165) – Tchoubar,Vladimir (2370), New York op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.ba5 Qa5 7.Bb2 Nc6 8.Bc3 Qc7 9.d4 b5 10.Be2 Nh6 11.0-0 Be7 12.Bd2 b4 13.c3 (better is 13.Bh6!? gh6 14.Qc1-/+) 13...b3-+ 14.Bh6 gh6 15.Qd2 Qb6 16.Qb2 Bd7 17.Nfd2 Ra4 18.f4 0-0 19.Rf3 f6 20.Rg3 Kh8 21.Nf3 Rg8 22.Rh3 fe5 23.fe5 Bf8 24.Nbd2 Qa7 25.Rf1 Be8 26.Nh4? (better is 26.Nb1-+) 26...Ne5 (26...Ba3 27.Qa1 Nd4 28.cd4-+) 27.Ndf3 Ng6 (better is 27...Ng4!? 28.Nd2 Ba3 29.Qb1-+) 28.Ng6 Bg6 (28...hg6?! 29.Qc1 h5 30.Ng5-/+) 29.Ne5 Bf5 30.Bg4 Ra3?? (better is 30...Ba3 31.Qe2 Bd6 32.Rh6 Ra2-+) 31.Bf5+= Ra2 32.Qb1 Rgg2 (32...Rag2? 33.Kh1 Bd6 34.Be6 Be5 35.de5+- (35.Bd5 Rc2 36.Qe1 Qg7 37.Qe5 Qe5 38.de5 b2+-)) 33.Kh1 ef5 34.Qf5 Bg7?? (better is 34...Qe7=) 35.Qc8 1–0. Halpin,P (2155) – Luchtmeijer,A (2015), Oceania Zonal, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.ba5 Qa5 7.Be2 Bc5 8.0-0 Ne7 9.d4 cd3 10.cd3 d4 11.Bb2 Qd8 12.Qc1 b6 13.Nbd2 Bb7 (13...Nbc6 14.Nb3 Qd5 15.Qc4+=) 14.Ng5 (14.Nb3!? Qd5 15.Nbd4+-) 14...Ng6= 15.f4 (15.Nge4!? Nf4 16.Re1=) 15...Nf4-/+ 16.Rf4 Qg5 17.Nf3 Qe7 18.Rb1 (18.Bd4!? Ra3 19.Ra3 Ba3 20.Qb1=+) 18...Nc6-/+ (worse 18...Ba3 19.Ba3 Ra3 20.Rb6+=) 19.Bd4?? (better 19.Qe1-/+) 19...Nd4-+ 20.Nd4 Ra4 (20...Ba3 21.Qc4 0-0 22.Bf3-/+ (22.Rb6? Bd5 23.Qc3 Qg5-+); 20...Ra3?! 21.Kh1 g5 22.Rg4-+) 21.Bd1 (21.Bf3 Bf3 22.Kh1 Bg2 (worse 22...Bd4 23.Qc8 Qd8 24.Qd8 Kd8 25.gf3-+) 23.Kg2 Rd4 (23...Bd4?! 24.Qc8 Qd8 25.Qc6 Qd7 26.Qd7 Kd7 27.Rb6-+) 24.Rd4 Bd4 25.Qc8 Qd8 26.Qd8 Kd8-+) 21...Rd4 (21...Bd4?! 22.Kh1 0-0 23.Ba4-/+) 22.Rd4 Bd4 23.Kf1 (23.Kh1 0-0-+ (worse 23...Be5 24.Ba4 Kd8 25.Qe3-+)) 23...0-0 24.Qf4 (24.Bf3 Ba6 25.Qc2 Qa3-+) 24...f6 25.Ke2 0–1. Magnusson,Audbergur (1680) – Bergmann,Haukur (2075), Icelandic Championship Division, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.b5 a4 7.d3 Qa5 8.Bd2 Qb5 9.Nc3 Qa6 (9...Qc6 10.Be2+-) 10.dc4 (10.Be2 Nh6+-) 10...dc4 11.Qe2 b5 (11...Ne7 12.Qc4 Qc4 13.Bc4+-) 12.Rb1 Bd7 13.Nd4 b4 14.ab4 Nc6 15.Ndb5 Qb7 16.Qc4 Rc8? (16...Ne5 17.Qc7 Qb8+-) 17.Ne4 Ne5 18.Ned6 Bd6 19.Nd6 Ke7 20.Nc8 (20.Nb7?! Nc4 21.Bg5 Nf6=) 20...Qc8 21.Qc8 Bc8 22.Ra1 Bd7 (22...Nf6 23.Ra4 Ne4 24.Be3+-) 23.b5 Nf6 (23...Nh6 24.Bc3 f6 25.Ra4+-) 24.Bb4 (worse 24.Ra4 Rc8 25.Bb4 Kd8+-) 24...Kd8 25.Ra4 (25.Bd6 Ng6 26.Ra4 Ne8+-) 25...Kc7 26.c4 Rc8 (26...Bc8 27.Be2+-) 27.Bc3 Ng6 28.c5 Nd5 (28...e5 29.Bd3 e4 30.Be2+-) 29.Ra7 (better 29.Bg7 Be8+-) 29...Kd8 (29...Kb8 30.Rd7 Nc3+-) 30.Ba5 Ke8 31.c6 Bc6 (31...Ne5 32.cd7 Nd7 33.Bd2+-) 32.bc6 Rc6 (32...Ne5 33.c7 Ke7 34.Bb5+-) 33.Bb5 (33.Bb5 Ne5 34.f4 Nf4 35.0-0+-) 1–0. Bhat,Vishal (1995) – Gold,Hamish (1790), Oceania Zonal, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.b5 a4 7.d3 cd3 8.cd3 (8.Bd3 Bc5+=) 8...Nd7 (8...Qa5!? 9.Qd2 Qb5=) 9.d4+= Nb6 10.Bd3 Bd7 11.Nc3 Rc8 (11...Qc7!? 12.Bd2 Nc4+=) 12.Bd2 Nc4 13.Bc4 (13.Qa4!? Nd2 14.Kd2+/-) 13...Rc4= 14.0-0 Ne7 15.Na4 Bb5 16.Nc5 Bc6 17.Qb3 b6 18.Nd3 Nf5 19.Nb2 Nd4 20.Nd4 Rd4 21.Be3 Re4 22.Rfc1 The isolani on b6 becomes a target 22...Bd7 (22...Qc7 23.Qc3 Kd7 24.Bd4=) 23.Bb6+= Qb8 (23...Qa8 24.Nd3+=) 24.Nd3 (24.Rc7 Qa8 (24...Re5 25.Rd7 Kd7 26.Qb5 Kd6 27.Rc1 Re1 28.Re1+-) 25.Nd3 Ba4+/-) 24...Be7 25.Rab1 0-0 26.Rc7 Ba4 27.Qc3 Re8 (27...Bd8 28.Rc8 Qb7 29.Rd8 Rd8 30.Nc5+=) 28.Rb2+/- Qa8 29.f3 (29.Bd4 Qd8 30.Ra7+-) 29...Rc4= 30.Rc4 dc4 31.Qc4 Rc8 32.Qd4 Bc6 33.Rc2 (33.a4 Qa4 (33...Ba4? 34.Ra2+-) 34.Qa4 Ba4=) 33...Qa3= 34.Bc5 Qb3 35.Rc1 Bg5 36.f4 Rd8 (better 36...Bh4=) 37.Bd6+/- Bb5 (better 37...Be7!? 38.Rc6 Qd1 39.Kf2 Bh4 40.g3 Qh1+/-) 38.Nc5+- (38.fg5?! Bd3 39.Qc3 Qb6 40.Qc5 Qa6=) 38...Qa3 39.Ra1 (39.Ra1 Rd6 40.ed6+- (40.Ra3?! Rd4 41.fg5 Kf8=)) 1-0. Jun,Rudolf Jr (2135) - Vybiral,Z (2270), ch-CZE, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.b5 a4 7.d4 Qa5+= 8.c3 (better is 8.Bd2!? Qb5 9.Nc3=) 8...Qb5-/+ 9.Qd2 Nc6 10.Qf4 Na5 11.Nbd2 Qd7 12.Bb2 Ra6 13.Be2 Rb6 14.Bc1 Ne7 15.h4 Ng6 16.Bd1?? (better is 16.Qe3-/+) 16...Nc6 (better is 16...Nf4 17.0-0 Nd3-+) 17.Nb1 0–1. Helin,Mikael (1895) – Formanek,E (2120), Politiken Cup, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.b5 a4 7.Nd4 Qb6=+ 8.Qg4 (8.c3 Nd7 9.d3 Ne5 10.dc4 Nc4 11.Bc4 dc4=+) 8...Nh6 9.Qf4 Bc5 10.Bb2 g5 (10...Nc6!? 11.Nc6 bc6-/+) 11.Qf6= Rg8 12.Qh6 Bd4 13.Qh7 Rf8 14.Bd4 (14.Bc3!?=+) 14...Qd4-/+ 15.Nc3?? (better 15.c3 Qe5 16.Kd1-/+) 15...Qe5-+ 16.Be2 Rh8 (16...Rh8 17.Qh8 Qh8-+) 0–1. Nizetic,Philip – Clarke,T (2170), Target Recruitment Masters, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.b5 Bc5 7.d4 cd3 8.Bd3 f6 9.0-0 Nd7 10.Re1 (10.Bb2!?+=) 10...fe5= 11.Ne5 (better 11.Bb2!?=) 11...Qf6 12.Qe2? (better 12.Qh5 g6 13.Bg6 Kf8 14.Be3 Be3 15.Re3 Ne5 16.Qe5 Qe5 17.Re5 hg6 18.Nd2-+) 12...Qe5-+ 13.Qe5 Ne5 14.Bb2 Nd3 15.cd3 Nf6 16.Nd2 0-0 17.Rac1 Bb6 18.Nf3 Ng4 19.Re2 Bd7 20.h3 Nf6 21.Rce1 (21.a4 Rac8-+) 21...Nh5 (21...Bb5?! 22.Bf6 Rf6 23.Rb2 Bf2 24.Kf2 Bd3 25.Rb7-+) 22.Be5 Nf4 (22...Bb5?! 23.Rb2 Bf2 24.Kf2 Bd3 25.Rb7-/+) 23.Bf4 Rf4 24.Ne5 Be8 (24...Bb5?! 25.Rb1 Raf8 26.Rb5 Rf2 27.Rf2 Bf2 28.Kh2-+) 25.Nf3 (25.Rc1 a4-+ (25...Bb5?! 26.Rb1-+)) 25...Bf7 (25...Bc5 26.Ng5 Bd7 27.Ra2-+) 26.Ne5 (26.Rc1 Ra4 27.Ra2 Bh5-+) 26...Rc8 27.g3 Rf5 28.Nd7 (28.Kg2 Rc3-+) 28...Bd4 29.g4 (29.Kg2 Be8 30.g4 Rf4-+ (worse 30...Bd7 31.gf5 e5 32.Re5 Be5 33.Re5 Bb5 34.Kh2-+)) 29...Rf3 30.Rd1 Be8 (30...Rc3 31.Kg2 Rfd3 32.Rd3 Rd3 33.a4-+) 31.Kg2 (31.Ne5 Be5 32.Kg2 Rd3 33.Rd3 Bb5 34.Re5 Bd3 35.Re6 b5-+) 31...Rf7 (31...Rf2 32.Rf2 Bf2 33.Kf2 Bd7 34.a4 Rc2 35.Ke3-+) 32.Ne5 Be5 33.Re5 Bb5 34.Rd2 (34.Re6 Rc3 35.d4 Ra3-+) 34...Bd7 (34...Rc3 35.d4-+) 35.Rb2 (35.d4 b5-+) 35...b5 36.Kg3 (36.d4 Rc4-+) 36...Rc3 37.Re3 (37.Ra2 Rd3 38.Re3 Rd1-+) 37...Ra3 0–1. Povilaitis,Tomas (1650) – Jegorovas,Aleksandras (2280), LSL, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

6.d3 cd3 7.Bd3 ab4 8.0-0 Bd7 9.Bb2 Nc6 10.ab4 Ra1 11.Ba1 Bb4 12.Nc3 Nge7 13.Nb5 0-0 14.Nd6 Bd6 15.ed6 Ng6 (15...Nc8 16.Ne5-/+) 16.c4 Nb4 (16...dc4 17.Bc4 e5 18.Qd2=+) 17.cd5 (better 17.Bg6!? fg6 18.Qd4+/-) 17...Nd5=+ (17...ed5? 18.Bg6 fg6 19.Qd4+-) 18.Ne5 Bc6 (18...Ngf4 19.Be4=+) 19.Ng6 (19.Bg6!? hg6 20.Qd4=+) 19...hg6 20.Be5 (better 20.Qg4-/+) 20...f6 (better 20...Qg5 21.Bg3 Nf4-/+) 21.Bg3= Kf7 22.Qb1 (22.Re1 Rh8+=) 22...f5= 23.Be5 Qb6 (23...Qg5 24.g3 Qh5 25.f3=) 24.Qa1+= Rg8 25.Rb1 Qc5 26.h4 (26.Be2 Rd8+=) 26...Nb4 (26...Ne3 27.Rc1 Qd5 28.f3=) 27.Rd1 Nd3 28.Rd3 Bd7 29.Rd1 Qc6 30.Rc1 Qb5 (30...Qd5 31.Rc7 Rd8 32.Bg7 Ke8+-) 31.Rc7+- g5 32.hg5 Kg6 33.Bg7?? (better 33.Bd4+/-) 33...Rg7=+ 34.Qf6 Kh5?? (34...Kh7 35.Rc3 Kg8=) 35.Qh6 (35.Qg7 Kg4+-) 35...Kg4 36.Qg7 (better 36.f3 Kf4 37.g6 Ke5 38.Qg7 Kd5+-) 36...Qb1 (36...Qb4 37.Qe5 Qa4 38.Rc3 Qa1 39.Kh2 Qc3 40.Qc3+-) 37.Kh2 Qe4 (37...Qd3 38.f3 Kf4+-) 38.f3 (38.Rd7?! Qf4 39.Kg1 Qc1 40.Kh2 Qf4 41.Kh1 Qc1 42.Kh2 Qf4=) 38...Qf3 39.gf3 (39.Qd7?! Qg3 40.Kg1 Qe1 41.Kh2 Qh4 42.Kg1 Qe1 43.Kh2 Qh4 44.Kg1 Qe1=; 39.Rd7?! Qg3 40.Kg1 Qe1 41.Kh2 Qh4 42.Kg1 Qe1 43.Kh2 Qh4 44.Kg1 Qe1=) 39...Kf3 40.Qe5 (40.Rc3 Ke4 41.Rc4 Ke3 42.Qd4 Kf3 43.Qe5 f4 44.Rf4) 40...Bc6 41.Rc6! bc6 (41...bc6 42.d7 Mate attack). BTR (2445) - 07_agnivo (2410), Rated Blitz game, lichess.org, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 c4)

6.b5 Qb6

7.a4 Bc5 8.Qe2 Nd7 9.g3 (9.d3 cd3 10.cd3 Ne7=) 9...f6=+ 10.Bb2 fe5 11.Ne5 Ngf6 12.Bg2 (12.f4 0-0=+) 12...Ne5-/+ 13.Be5 Bf2 14.Kd1 (14.Qf2 Ng4 Double attack (14...Ng4 Decoy)) 14...Bd4 (14...0-0 15.Rf1 Bc5 16.h3-/+) 15.Ra3 Be5 16.Qe5 0-0 17.Rf1 Bd7 18.Raf3 Ng4 19.Rf8 (19.Qh5 Rf3 20.Bf3 Nf6-/+) 19...Rf8-+ 20.Rf8 Kf8 21.Qf4 Nf6 (21...Ke8 22.h4-+) 22.Qf1 Ke7 (22...Kg8 23.Nc3-+) 23.c3 (23.Nc3!?-/+) 23...Be8 24.Kc1 Bg6 25.Kb2 (25.Qe1 Kf8-+) 25...Nd7 26.Bf3 Nc5 27.Bd1 Nd3 28.Kc2 (28.Ka2 Qf2 29.Qf2 Nf2 30.Be2-+) 28...Qf2 29.Be2 (29.Qf2 Nf2 30.Kc1 Bb1-+) 29...Qe2!! (29...Qe2 30.Qe2 Nf4 31.Kd1 Ne2-+) 0–1. Schirov,S (1940) – Alikhanov,F (2390), 17th Korensky Memorial, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

7.a4 Bc5 8.Qe2 Ne7 9.Ba3 Nd7 10.d3 (10.Bc5 Qc5 11.h4 Nf5=+) 10...cd3 11.cd3 Nf5 12.Ra2 h5 (12...Ba3!? 13.Na3 Nd4=+) 13.g3 (better 13.Bc5!? Qc5 14.Qc2=) 13...Ba3-/+ ½–½. Ardelean,George Catalin (2370) – Cehic,Goran (2155), Genova op 3th, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

7.a4 Bc5 8.Qe2 Nh6 9.Ba3 Nd7 10.d3 cd3 11.cd3 Nf5 12.Ra2 Ba3 13.Na3 Nd4 14.Qb2 Nf3 15.gf3 0-0 16.d4 (16.f4 f6-/+) 16...f6 17.f4 (17.ef6 Rf6 18.Nc2 Rf3-/+) 17...fe5 18.fe5 Rf4 19.Bh3 (19.Nc2!? Ne5! 20.Be2-+) 19...Rd4 20.Be6 Kh8 21.Bd7 Bd7 22.Rg1 (22.Qc3 Rc8 (22...Ra4?! 23.0-0-+) 23.Qa1 Re4 24.Re2 Qh6 25.Re4 Rc1 26.Ke2 Ra1 27.Ra1 de4-+) 22...Re4 23.Kd1 Bg4 24.Rg4 Rg4 25.Qc3 Qd4 (25...Ra4!? 26.Re2-+) 26.Qd4 Rd4 27.Rd2 Ra4 28.Nc2 Rd8 29.Ne3 (29.Nd4-+) 29...Re4 0–1. Herndlbauer,M (2150) – Vitouch,A (2275), TCh–AUT, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

7.a4 Bc5 8.Qe2 Nh6 9.Ba3 Nd7 10.g3 Nf5 11.Bc5 Qc5 12.Nc3 Nd4 13.Nd4 Qd4 14.f4 Qc5 15.Bg2 b6 16.Qe3 Bb7 17.Qc5 Nc5 18.Ne2 h5 19.h3 0-0-0 20.Nd4 h4 21.g4 g5 22.fg5 Rhg8 23.0-0 Rg5 24.Rf7 Re5 25.Raf1 Ne4?? (better is 25...Rd7+=) 26.Rb7! Kb7 27.Nc6 Nd2 28.Rf7 (28.Ne5?! Nf1 29.Kf1 Rh8+/-) 28...Kc8 29.Ne5 (29.Nd8 Kd8 30.Rb7 Re1 31.Kf2 Rc1-/+) 29...Ne4 (29...c3+-) 30.Nc6 (30.Nc6 Rd6 31.Rh7+-) 1–0. Duckworth,William Mark (2295) – Gliksman,David N (2240), Los Angeles, 1992. (=1.e4 c5 2.Nf3 e6 3.b4 d5 4.e5 c4)

7.d3 Bc5 8.d4 Be7 9.a4 Nd7 10.g3 (10.Be2 Bb4 11.Bd2 Bd2 12.Qd2 Nh6+=) 10...Qd8 (10...f6 11.Bg2=) 11.h4 (11.Bg2 Qc7+=) 11...h5 (11...f6 12.Bh3=) 12.Bh3 (12.Ng5 Rb8+=) 12...Nf8 (12...Nh6 13.0-0+=) 13.0-0 b6 14.Ba3 Ra7 15.Re1 f6 16.ef6 gf6 17.Nc3 Ba3 18.Ra3 Qd6 19.Qc1 Re7 20.Ne2 Ng6 21.Ra1 (21.Rc3 Kd8+=) 21...Nh6 22.Nf4 Now all is on e6 (better 22.Qd2!?+=) 22...Nf4-/+ 23.Qf4 Qf4 24.gf4 Rg8 25.Kf1 Nf7 26.Ra3 Nd6 27.Nd2 Reg7 (27...Kf7 28.Rae3=+) 28.Ke2 (28.Re6 Be6 29.Be6 Rg1 30.Ke2 R8g7 31.Bd5 Re7 32.Re3 Rg4=) 28...Kf7=+ 29.Re3 Rg1 30.Rg1 Rg1 31.Nf1 Ne4 (31...Rh1 32.Ra3-/+) 32.Ng3 White prepares f5 32...Ng3 (32...Ra1 33.Ne4 de4 34.Bg2=+) 33.fg3= Ra1 34.f5 ef5 35.Bg2 Be6 36.Bf3 Ra4 37.Bh5 Ke7 38.Bg6 Kd6 39.h5 Ra1 40.Kf2 (40.h6 Rh1 41.h7 Bd7=) 40...a4 (40...Rh1 41.Kg2 Rc1 42.Re2+-) 41.h6 Rh1 42.h7 Bd7 43.Kg2 (43.Re1 Rh2 44.Kg1 Rh6+=) 43...Rh6= 44.Ra3 Bb5 45.g4 (45.Bf5 Ke7 46.Ra1+-) 45...fg4-/+ (45...Rg6? 46.h8Q Rg4 47.Kf2 Rf4 48.Rf3 Rf3 49.Kf3+-) 46.Ra1 a3 (better 46...Bd7!?=+) 47.Ra3+= Be8 48.Be8 Rh7 49.Bg6 (better 49.Ra6 Re7 50.Bg6+- (50.Rb6 Kc7 51.Rc6 Kb7=+)) 49...Re7 (better 49...Rg7!? 50.Bf5 Rg5=) 50.Bf5 (50.Kg3 Re1+-) 50...Re2 51.Kg3 Rd2 52.c3 (worse 52.Kg4 Rd4 53.Kh5 Rd1=) 52...b5 (52...Rb2!?+-) 53.Ra6+- Kc7 54.Rf6 (54.Kg4?! b4 55.cb4 Rd4 56.Kf3 c3+=) 54...b4 55.cb4 (55.Kg4 bc3 56.Rf7 Kc6 57.Rf6 Kb5-+) 55...Rd4 56.b5 (56.Bg4?! Rd3 57.Bf3 Rb3+=) 56...Rd2 57.Rc6 Kb8 58.Kg4 (58.Bd7 Rd4+-) 58...Rb2+- 59.Rc5 d4 60.Bd7 c3 61.Kf3 Kb7 62.Rc4 Rd2 63.Rc6 c2 64.Bc8 Kb8 65.Bf5 ½–½. Los,Sander (2355) – Vaisser,Anatoli (2565), Groningen op, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Qb6)

7.d3 Bc5 8.d4 Be7 9.a4 Bd8+=.

7.d3 Bc5 8.d4 Be7 9.Nc3 a4= 10.g3 (10.Bg5 Qa5 11.Bd2 Qb6+=) 10...h5 (10...Bd7 11.Rb1=) 11.h4 (11.Bg5 Bg5 12.Ng5 Bd7+=) 11...Nh6 12.Bh3 Bd7 13.Ng5 g6 14.Rb1 Ra5 Increases the pressure on b5 15.Nf3 Bb5?? (15...Ng4 16.Bg4 hg4 17.Nh2=) 16.0-0?? (better 16.Bh6 Ba3 17.Bg7+-) 16...Qc6 (16...Nf5 17.Bf5 gf5 18.Bg5 Bg5 19.Ng5=) 17.Bg5= Bg5 18.Ng5 (worse 18.Nb5 Be7 (worse 18...Rb5 19.Ng5 Rb1 20.Qb1=+) 19.Nd6 Bd6 20.ed6 Ra7-/+; 18.hg5?! Nf5=+) 18...Qd7 (18...Na6!?=) 19.Qd2+= (19.Nb5?! Rb5 20.Qf3 Nf5 21.Bf5 gf5=+ (worse 21...ef5 22.e6 fe6 23.Qf4+-)) 19...b6 (19...Qc6+=) 20.Rb2 (20.Ne6 fe6 21.Qg5+-) 20...Na6= 21.Rfb1 Nc7 22.Qf4 Nf5 23.Bf5 (worse 23.Nb5 Nb5 24.Bf5 gf5=+ (24...ef5?? 25.e6 fe6 26.Qb8 Qd8 27.Qe5+-)) 23...gf5 (23...ef5 24.Nb5 Nb5 25.e6 fe6 26.Qb8 Qd8 27.Qe5+-) 24.Nh3 (worse 24.Nb5 Nb5 25.Qe3 c3=+) 24...Kd8 (24...Rh7!?+=) 25.Qg5+- (worse 25.Nb5 Nb5 26.Qg5 Kc8=) 25...Kc8 26.Qg7 (26.Nb5?! Nb5 27.Qe3 Rg8=) 26...Qe8 (26...Re8!?+-) 27.Ng5+- Rf8? (better 27...Rg8 28.Qf7 Qf7 29.Nf7 Be8 30.Nd6 Kd7 31.Rb6 f4+-) 28.Nb5 Nb5 29.Rb5! Rb5 (29...Rb5 30.Rb5 Combination; 29...Qb5 30.Qf8 Double attack (30.Qf8 Deflection; 30.Qf8 Decoy; 30.Qf8 Overloading)) 30.Rb5 1–0. Zhao Xue (2440) – Huang Chengxin, TCh–CHN Men Suzhou, Jiangsu CHN, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Qb6)

7.d3 cd3 8.cd3 Qb5 9.Nc3 Qd7 10.Na4 Qd8 11.Qb3 Nd7 12.d4 Ne7 13.h4 Nc6 14.h5 Be7 15.Bd3 h6 16.Rh3 (16.0-0 0-0+=) 16...Bg5 (better is 16...b5!? 17.Bb5 Rb8=) 17.Rg3 Bc1 18.Rc1 0-0 19.Bb1 f5 20.ef6 (20.Kf1 Qe8 21.Rh3 b5+=) 20...Rf6 21.Qd3 Nf8 22.Qe3 Qe8? (better is 22...Nd7+=) 23.Nb6+- Bd7 (23...Rb8 24.Nd5! ed5 25.Qe8 Re6 26.Qe6 Ne6 27.Rg4+-) 24.Na8 Qa8 25.Ne5 Be8 (25...Qb8+-) 26.Ng4 Qd8 27.Nh6 (27.Nf6?! Qf6 28.Rf3 Qd4 29.Qd4 Nd4+-) 27...Kh8 28.Ng4 Rf7 29.h6 g6 30.Ne5 Ne5 31.Qe5 (31.de5?! Qh4+-) 31...Kh7 32.Rf3 Qe7 33.Rc8 Bd7 (33...Nd7 34.Rf7 Qf7 35.Qg7 Qg7 36.hg7+-) 34.Rf7 Qf7 35.Rc3 Qe7 36.Rf3 Kg8 (36...Be8 37.Qf6 Qf6 38.Rf6+-) 37.Qb8 (better is 37.Qf4 Bc6+-) 37...Be8 38.Qf4 Nd7 39.Kf1 b5 40.Kg1 b4 41.ab4 ab4 42.Qc7 Kh7 43.Qf4 Kg8 44.Bc2 Nb6 (44...Kh7+-) 45.h7! Kh7 (45...Qh7 46.Qf8; 45...Kh7 46.Rh3 Double attack) 46.Rh3 Kg8 47.Qe5 (47.Qe5 Qg7 48.Qe6 Kf8 49.Qb6+-) 1–0. Smerdon,D (2520) – Petersen,SoB (2245), Aegean Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

7.d3 cd3 8.Bd3 Nd7 9.0-0 Nc5 (9...Bc5 10.Bb2+=) 10.Be3+- Qd8 11.Nbd2 Bd7 12.a4 Nd3 13.cd3 Bb4 14.Nb3 Ne7 15.Bd2 Bd2 16.Qd2 Ng6 17.Rfc1 0-0 18.Rc2 f6 19.Qe3 Rc8 20.Rc8 Bc8 21.Re1 (21.Rc1!?+-) 21...fe5= 22.Ne5 Ne5 23.Qe5 Qh4 24.f4 (24.Na5?? Qf2 25.Kh1 Qf1 26.Rf1 Rf1) 24...Rf5 (24...Qf4 25.Qf4 Rf4 26.Rc1+=) 25.Qe3 (25.Qc3 Rf8 26.g3+- (worse 26.Na5 Qf4 27.h3 Qa4-/+)) 25...Qf4+= 26.Qf4 Rf4 27.Rc1 Bd7 28.Rc7 Be8 29.Na5 (29.Nc5 b6 30.Ne6 Rg4+-) 29...Ra4 (better 29...Bg6!?=) 30.Nb7+- Bb5 (30...Ra1 31.Kf2 Ra2 32.Kg3 Kf8+-) 31.Rc8+- Kf7 32.Nd6 Ke7 33.Nb5 Rb4 34.Rc5 Kf6 35.Kf2 (35.Nc7 Ke7+-) 35...Ke5 (35...Rb2 36.Kf3+-) 36.Ke3 Rb2 37.Nd4 (37.d4 Kf6 38.Nc7 Ke7+-) 37...Rg2 38.Rc6 Rg6 39.Nf3 Kf6 40.d4 Rg4 (40...Rg2 41.Ne5 h5 42.h4+-) 41.Rc7 Rg2?? (41...Re4 42.Kd3 g5+-) 42.Ne5 g6 (42...Rh2 43.Ng4 Kg6 44.Nh2 h5+-) 43.h4 (43.h4 Rg3 44.Kf4 Rf3 45.Kf3 g5 46.Rf7) 1–0. Ganbold,O (2390) – Wang,Dr (2180), National Open, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Qb6)

7.d3 Nd7 8.dc4 Bc5 9.Qd2 Nh6 10.h3 Qc7 11.Qc3 (11.Qe2 Nf5 12.cd5 ed5+=) 11...Nf5 (11...d4 12.Nd4 Qe5 13.Be3+=) 12.cd5+- ed5 13.Bd3 (13.g4 d4 14.Qd3 Ne7+= (14...Ne5? 15.Qe4+-)) 13...d4 14.Qd2 Ne5 15.Qe2 f6 16.Bf4 Bd6 17.Be5 (17.Bf5 Bf5 18.Nd4 Bg6+=) 17...fe5 18.0-0 0-0 19.Nbd2 Bd7 20.Ne4 (20.Qe4 Rf6+=) 20...Rae8 21.Nfg5 (21.g4 Nh6=) 21...g6 22.a4 (22.Nd6 Qd6 23.Rfe1 a4=) 22...Re7 (22...Bb4 23.Bc4 Kg7 24.Rad1=+) 23.Rab1 (23.Nd6 Nd6 24.Rae1 Bf5=) 23...Bb4=+ 24.g4 (24.Bc4 Kg7=+) 24...Ng7 (better 24...Nh4!? 25.Bc4 Kg7-/+) 25.f4=+ h6 (25...Rf4 26.Rb4 Bg4 27.hg4 ab4 28.Nf6 Kh8 29.Nd5 (29.Nfh7 e4 30.Nf8 Rf1 31.Qf1 Qg3 32.Kh1 Qh4 33.Nh3 Qg4=; 29.Ngh7 e4 30.Nf8 Rf1 31.Qf1 Qg3 32.Kh1 Qh4 33.Kg2 Qh6 34.Be4 Nf5 35.gf5 gf5 36.Qf5 Qf8+-) 29...Rf1 30.Qf1+-) 26.fe5 (26.Bc4 Ne6=) 26...hg5 27.Rf8 Kf8 28.Rf1 (28.Qf3!? Rf7 29.Nf6=+) 28...Ke8-/+ 29.Ng5 Kd8 1–0. Sivanandan,B (2395) – Deshmukh,A (2300), Commonwealth Ch, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Qb6)

6.b5 Nd7

7.d3 Qc7 8.Bb2 Nb6 9.a4 (9.Bd4 Bd7+=) 9...Nh6= 10.Be2 Bb4 11.c3 Be7 12.Nbd2 Ng4 13.dc4 (13.d4 0-0=) 13...Ne5 (worse 13...Nc4 14.Nc4 dc4 15.Qd4+-) 14.cd5 Nd5 15.c4 Nf3 16.Bf3 Nf4 17.0-0 0-0 18.Qb3 Rd8 19.b6 Qd7 (19...Qd6 20.Ba3 Qd7 21.Rad1+=) 20.Rad1 Qd3 21.Bc3 (21.Be4 Qb3 22.Nb3 f5+=) 21...Qg6 22.Ne4 Bd7 (22...Nh3 23.Kh1 Rd1 24.Qd1+=) 23.Be5 Bc6 24.Ng3 (24.Bf4?! Be4 25.Rde1 Rd3 26.Be4 Qe4=) 24...Rd3 25.Rd3 Qd3 26.Qd3 Nd3 27.Bc6 Ne5 28.Bb7 Rb8 29.Ba6 Rb6 30.Bb5 f5 (30...Rd6 31.Rc1=) 31.Rd1 Kf7 32.Kf1 Bc5 (32...g5 33.Ne2=) 33.h3 (33.Nf5 ef5 34.Rd5 Bf2 35.Re5 Kf6+=) 33...Ke7 (33...Rd6 34.Rd6 Bd6 35.Ke2=) 34.Ne2 (34.Nf5 ef5 35.Rd5 Bf2 36.Kf2 Re6+=) 34...g6 (34...Rd6 35.Rd6 Kd6 36.Nc1=) 35.Nc1 Rd6 36.Rd6 Kd6 37.Ke2 (37.f4 Nf7=) 37...g5 38.Nb3 Bb4 39.Ke3 Ng6 40.g3 Bc5 41.Ke2 Bb4 ½–½. Emodi,Gyula (2415) – Szilagyi,Peter (2400), HUN–chT29899, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Nd7)

7.d4 a4 8.Nc3 Be7 (8...Ne7 9.Be2=) 9.h4 (9.Be2 Rb8+=) 9...Nb6 10.g3 Bd7 11.Bh3 Ra5 12.Rb1 Na8 13.0-0 (13.Nd2 Nc7=+) 13...b6 14.Ng5 Nc7 Will b5 fall? 15.f4 Bg5 (worse 15...Bb5 16.f5 ef5 17.Bf5 (worse 17.Nb5 Rb5 18.Rb5 Nb5=+) 17...Bg5 18.Bg5=) 16.fg5 g6 (better 16...Ne7=+) 17.Qf3+- Qe7 18.Bd2 Kd8? (better 18...h6!? 19.gh6 Nh6 20.Nd5 Nd5 21.Ba5 ba5=) 19.Ne2 (19.Qf7 Bb5 20.Qf8 Be8 21.Rb6 Qf8 22.Rf8 Ke7+-) 19...Rb5 20.Bb4 Rb4 (20...Qe8 21.Nc3+-) 21.Rb4 (21.ab4?! h6 22.gh6 Nh6+-) 21...b5 22.Bg4 1–0. Kobese,W (2390) – Homrana,M (1985), ch–Africa Tripoli LBA, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Nd7)

7.d4 cd3 (=7.d3 cd3).

7.d3 cd3

8.cd3 Nb6 9.Be2 Ne7 10.0-0 Ng6 11.Be3 Be7 12.a4 0-0 13.Nbd2 f6 14.ef6 Bf6 15.d4 Bd7 16.Nb3 Nc4 17.Bc4 dc4 18.Nbd2 Rc8 19.Rc1 e5 (better 19...c3!? 20.Ne4 Be7 21.Rc3 Rc3 22.Nc3 Bc8+-) 20.de5+- Ne5 21.Ne5 Be5 22.Nc4 (22.Rc4?! Be6 23.Rc8 Qc8+-) 22...Bb8 23.Qd5 Kh8 (23...Rf7 24.Nb6 Rc1 25.Rc1+-) 24.Nb6 (24.Na5 Qa5 25.Qd7 Rcd8+-) 24...Rc1 25.Rc1 (25.Bc1?! Qc7 26.Bf4 A) worse 26...Rf4 A1) 27.Nd7? Rf5 (27...Ra4? 28.g3 Qd8 29.Re1+-) 28.Ne5 Re5-+; A2) 27.Qd7 Re4 28.g3+-; B) worse 26...Qf4 27.g3 Bc6 28.bc6 bc6 29.Qc6+-; C) 26...Qb6 27.Bb8 Bb5 28.ab5 Rb8=) 25...Bf5 26.Qb7 Qh4 27.g3 Qh3 28.Bd2 Re8 (28...Bd6 29.Qd5 Rd8 30.Re1+-) 29.Re1 Threatening mate... how? (29.Re1 Rd8 30.Ba5+-; 29.Ba5 Be4 30.Qe4 Re4 31.Rc8 Qc8 32.Nc8 Ra4=+) 1–0. juliangon (2600) – craig4000 (2075), ChessWorld.net, 2013.

8.Bd3 Nc5 9.0-0+= Ne7 10.Nc3 Nd3 11.cd3 Nf5 12.Bg5 Qd7 (12...f6!? 13.Bd2 Bc5+=) 13.Na4+/- Rb8 14.g4 Nh6 15.Nb6 Qc7 16.Nc8 Rc8 17.b6 (17.Rc1 Qd7 18.Rc8 Qc8 19.Qa4+-) 17...Qd7+= 18.h3 Bc5 19.Qd2 Qb5 20.d4 Bb6 21.Rab1 Qa6 22.Rfc1 0-0?? (22...Rc4 23.Kg2 Bc7 24.Bh6 gh6 25.Qh6+/-) 23.Bh6 (better is 23.Bf6 Nf5 24.gf5+-) 23...gh6+= 24.Qh6 Qd3 (24...Rc1!? 25.Qc1 Bd8+/-) 25.Qg5+- Kh8 26.Qf6 Kg8 27.Rd1 Qc2 28.Qg5 Kh8 29.Qf6 (29.Qe7 Kg8 30.Kg2+/- (30.Qb7?! Qe2 31.Qb6 Qf3+=)) 29...Kg8+= 30.Ne1 Qa4 31.Qg5 Kh8 32.Qf6 Kg8 33.Ng2 Bd8 34.Qf3 f6 35.Rb7 (35.ef6 Bf6 36.Qe3+= (36.Rb7? Bd4 37.Qd3 Bf2 38.Kh1 Qc2-+)) 35...fe5-/+ 36.Qe2 e4 37.Rf1? (better is 37.Rbb1!?-/+) 37...Qd4-+ 38.Qa6 Qe5 39.Rh7?? (39.Re1 Qf6 40.Qf1-+) 39...Bc7 (39...Kh7 40.Qc8 Bc7 41.Qd7 Kh8 42.Qc7 Qc7 43.Re1-+) 40.Rc7 Rc7 (40...Qc7?! 41.Qe6 Qf7 42.Qe5+=) 41.Qa5 (41.h4-+) 41...Rc3 42.Ne3 (42.Nf4 Rf4 43.Qd8 Rf8 44.Qh4-+) 42...Re3! 0–1. Kesaris,E (1890) – Papasimakopoulos,Vasilios (1990), World Amateur Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

8.Bd3 Nc5 9.Be2 Ne7 10.h4 (10.0-0 b6=) 10...h5 11.c4 Nf5 12.Bb2 Ne4 13.cd5 (13.Nbd2!? Qb6 14.Ne4 de4 15.Ng5=) 13...Bc5-/+ (worse 13...Qd5 14.Nbd2 Nd2 15.Qd2 Qd2 16.Nd2+=) 14.0-0 Qb6 (14...Qd5?! 15.Nbd2 Nd2 16.Nd2 Nh4 17.Nf3 Qd1 18.Rfd1=) 15.Nc3? (better 15.Qe1!? Nfg3 16.Nc3 Nc3 17.Bc3 ed5 18.Rd1-/+) 15...Bf2 (better 15...Nf2!? 16.Rf2 Bf2 17.Kh2 Qe3-+) 16.Kh2 Ne3 (better 16...Nc3 17.Bc3 ed5-+) 17.Ne4=+ Nd1 18.Nd6 (18.Rad1 Qe3 19.Bd3 ed5 20.Nf2 Qf4 21.Kg1 Bg4=) 18...Kf8 (18...Ke7 19.Rad1 Qe3-/+) 19.Rad1=+ ed5 20.Bd4? (20.Nd4 Bd4 21.Rf7 Kg8 22.Bd4+=) 20...Bd4-+ 21.Nd4 f6! 22.Bf3 (22.ef6 Qd6 Double attack (22...Qd6 Deflection)) 22...Bg4 23.Bd5 (23.Rd3 Rd8 24.Bg4 hg4 25.Ne6 Kg8 26.Nd8 Qd8 27.Rd5 Rh4 28.Kg3 Rh5-+) 23...Bd1 24.Ne6 Ke7 25.Nf5 Kd7 26.Rd1 fe5 (26...Qb5?? 27.Bc4 Qd5 28.Bd5 fe5 29.Nc5 Kc7 30.Bb7+-) 27.Bc4 (27.Bc6 Ke6 28.Rd6 Kf5 29.Bd7 Ke4 30.Rb6-+) 27...Ke8 (better 27...Kc8-+) 28.Nfg7?? (better 28.Neg7 Kf8 29.Rd7+-) 28...Ke7 (28...Kf7!? 29.Rd7 Kg6 30.Bd3 Kf6=) 29.Nf5= Kf6 30.Rf1?? (30.Rd6!? Qd6 31.Nd6=) 30...Rhf8 (30...e4 31.Ne3 Ke5 32.Rf5 Kd6 33.Nd5-+) 31.Ng5?? (31.Ne3 Kg6 32.Rf8 Rf8 33.Nf8 Kg7 34.Ne6 Kh8 35.Nf5-+) 31...e4!-+ 32.Ne4 Ke5 (better 32...Kg6 33.Neg3-+) 33.Neg3? (33.Ned6 Rf5 34.Rf5 Kd4 35.Rd5 Kc3 36.Be2-+) 33...Rae8 34.Rd1 Rf5 (better 34...Qc5 35.Bf7 Rf7 36.Re1 Kf6 37.Re8 Qa3 38.Nd4-+) 35.Rd5 Kf4 36.Rf5 Ke3 37.Rf3 (37.Be2 Qc7 38.Bh5 Re4 39.Rf3 Kd4-+) 37...Kd2 38.Bf7 Re1 39.Bh5 a4 40.Bg4 (40.Rf4 Qb5 41.Rd4 Kc1-+) 40...Qd6 (40...Kc2!? 41.h5-+) 41.Kh3 Kc1 42.h5 Rd1?? (42...Kb2!? 43.Bf5-+) 43.Bf5?? (better 43.Rc3 Kb2 44.Bd1 Qd1 45.Rf3=) 43...Rd4?? (better 43...Kb2-+) 44.Ne2+- Kd1 (44...Kb2 45.Nd4 Qd4+-) 45.Nd4 Qd4 (45...Qb6+-) 46.Rd3 Qd3 47.Bd3 Kd2 (47...b6 48.h6 Kd2 49.Be4 Ke3 50.Bf3 Kd4 51.h7 Ke3 52.h8Q Kd3 53.Qd8 Kc2 54.Qd1 Kc3 55.Bd5 Kb2 56.Qd2 Kb1 57.g4 Ka1 58.Qc1) 48.Be4 ½–½. Kozak,A (2260) – Jary,S (2285), ch–RUS Blitz, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Nd7)

8.Bd3 Ne7 9.a4 (9.0-0 Qc7+=) 9...Ng6 10.Bg6 hg6 11.0-0 Qc7 12.Ba3 (12.Re1!?=) 12...Ba3 13.Na3 (13.Ra3 Ne5 14.Ne5 Qe5=+) 13...Ne5-/+ 14.Ne5 Qe5 15.g3 Qh5 16.Qh5 gh5 17.c4 dc4 (better 17...Ke7!?-/+) 18.Nc4= Ke7 19.Nb6 Rb8 20.Rac1 e5 21.Rfd1 Be6 22.Rc7 Kf6 (better 22...Ke8!?=) 23.Nd7+/- Kf5 24.Nb8 Rb8 25.f3 h4 (25...g5 26.b6+/-) 26.Kf2 hg3 27.hg3 Rh8 28.Ke3 b6 29.Rc6 Rh2 30.Rb6 Ra2 31.g4 Kg5 32.Re6! fe6 33.Rb1 Ra4?? (33...Ra3 34.Ke4 Ra4 35.Ke5 Rf4+-) 34.b6 e4 (34...Rf4 35.b7 Rf8+-) 35.b7 ef3 36.b8Q Ra3 37.Ke4 Ra4 38.Kf3 Ra3 39.Rb3 (39.Ke4 Rh3 40.Qe5 Kg6 41.Rb7 Rh7 42.Kf4 a4 43.Qe6) 39...Ra4 (39...Rb3 40.Qb3 Kf6+-) 40.Qe5 (40.Rb5 e5 41.Qe5 Kg6 42.Qe6 Kh7 43.Rh5) 40...Kg6 41.Qh5 (41.Qe6 Kh7 42.Qf5 g6 43.Rb7 Kh6 44.g5 Kh5 45.Rh7) 41...Kf6+- 42.g5 Ke7 43.Rb7 Kd6 44.Qh2 (44.Qe8 Rb4 45.Qd8 Ke5 46.Qa5 Kd6 47.Qb4 Kd5 48.Rc7 e5 49.Qd2 Ke6 50.Qd7) 44...Kd5 (44...Rf4 45.Qf4 e5 46.Qd2 Kc6 47.Qd7 Kc5 48.Ke4 a4 49.Qd5) 45.Qc7 (45.Rd7 Kc6 46.Rc7 Kb5 47.Qe5 Ka6 48.Rc6 Ka7 49.Qc7 Ka8 50.Ra6) 45...Ra3+- 46.Ke2 Ra2 47.Kd3 Ra4 48.Qd7 (48.Rb5) 48...Ke5 49.Qa4 Kf5 50.Qe4 (50.Rg7 e5 51.Ke3 e4 52.Qe4) 50...Kg5 51.Rg7 (51.Qe5 Kh4 52.Rg7 a4 53.Qh2) 51...Kh6 (51...Kf6 52.Rg6 Ke7 53.Re6 Kd8 54.Qc6 a4 55.Re8) 52.Qg6 1-0. Jenni,F (2455) - Reimanis,R (2410), Chess.com Bullet Open, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

8.Bd3 f6!? 9.ef6 Ngf6+=.

8.cd3 f6

9.Bb2 fe5 10.Ne5 Ne5 (10...Ngf6 11.d4+=) 11.Be5+= Nf6 12.Be2 (12.d4 Nd7 13.Qh5 g6=) 12...Bd6= 13.f4 (13.d4 0-0=) 13...0-0 14.0-0 Qc7 (14...Qb6 15.d4=) 15.d4 Ne4 16.a4 (16.Bf3 Bd7 17.a4 Be5 18.fe5 Qc4=) 16...Bd7 (16...Qb6 17.Qd3+=) 17.Bf3+= Be5 18.fe5 (18.de5? Qb6 19.Kh1 Nf2 20.Rf2 Qf2-+) 18...Rac8 (18...Ng5 19.Nd2=) 19.Be4 (19.Ra2 Qb6=) 19...Rf1= 20.Qf1 (20.Kf1 de4 21.Nd2 Qc3 22.Ne4 Rf8 23.Ke2 Qb2 24.Ke3 Be8-/+) 20...de4 21.Qd1 (better 21.Qe1!?=) 21...e3-/+ 22.h3 (22.Qe1 Qc1 23.Na3 Qb2-+) 22...Be8 (22...e2!? 23.Qe1 Qb6 24.Nd2 Qd4 25.Kh1 Qe5 26.Nf3-+) 23.Na3-/+ Qc3 24.Ra2 Bg6 25.Kh2 (25.b6 Qc1 26.Ra1 Qb2-+) 25...Bd3 26.Qg4 e2 27.Ra1 (27.Re2 Be2 28.Qe6 Kh8 29.Nb1-+) 27...Bf5 28.Qe2 Qa1 29.Qf3 (29.Nc4 Qd4 30.Qd2 Qc4 31.b6-+) 29...Qd4 0–1. Narmontas,Raimondas (1990) – Juksta,Karolis (1930), Open A, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5 6.b5 Nd7)

9.d4 fe5 10.de5 Nc5 11.Nbd2 (11.Be2 Ne7+=) 11...Qb6 12.Nb3 Nb3 13.Qb3 Bc5 14.Qb2 Ne7 15.Bg5 Nf5 16.Rd1 Bd7 17.Bd3 0-0 18.0-0 Rac8 19.a4 Be8 20.h3? (20.Qe2!?=) 20...Ng3 (20...Bh5 21.Kh1 Bf3 22.gf3-+) 21.Rfe1 Bh5 22.Be3 Bf3 23.Bc5 Qc5 (23...Rc5 24.gf3 Nh5 25.Qd4-/+) 24.gf3 (24.Rc1!? Qb6 25.Rc8 Rc8 26.gf3-/+) 24...Nh5 25.Rc1 Qe7 26.Rc8 Qg5 27.Kh1 Rc8 28.Qd4 Nf4 29.Bf1 Rf8 30.Qb6 Qh4 (30...Qf5 31.Kh2-/+) 31.Rc1 (31.Kh2 Rc8-+) 31...h6 32.Rc7 Rf5 (better 32...Qh5!?-/+) 33.Qb7 (33.Rb7 Qh5 (33...Re5?! 34.Rg7 Kg7 35.Qc7 Kg6 36.Qe5 Qf2 37.Qf4 Qf1 38.Kh2=) 34.Kh2 Qf3-/+ (34...Re5 35.Qd8 Kh7 36.Qf6+-)) 33...Rg5 (33...Re5?? 34.Rg7 Kh8 35.Rh7 Kg8 36.Qg7) 34.Qb6?? (better 34.Rc8 Kh7 35.Qf7=) 34...Kh7-+ (34...Re5 35.Qb8 Kh7 36.Rg7 Kg7 37.Qe5 Kg6 38.Kg1+-) 35.Kh2?? (35.Rc8 Ne2! 36.Qe3 Rg1 37.Kh2 Rf1 38.Qd3 g6 39.Rc7 Kh8 40.Rc8 Kg7 41.Rc7 Kf8 42.Rc8 Ke7 43.Qa3 Kd7 44.Rc7 Kc7 45.Qd6 Kc8 46.Qe6 Kd8 47.Qd5 Ke8 48.Qe6 Kf8 49.Qc8 Ke7 50.Qc7 Ke6 51.Qd6 Kf5 52.Qd3 Kg5 53.Qd8 Kh5 54.Qh4 Kh4 55.Kg2 Ra1 56.f4 Nf4 57.Kf3 Ra4 58.Ke3 Rb4 59.f3 a4 60.e6 Nd5 61.Kd3 a3 62.e7 Ne7 63.Kc3 Nd5 64.Kc2 a2 65.Kc1 a1Q 66.Kd2 Qb1 67.b6 Rb2) 35...Rh5 (better 35...Rg6 36.Qc5 Qg5 37.Rg7 Rg7 38.Qc2 Kh8 39.Qc8 Rg8 40.Qg8 Kg8-+) 36.Qa7 (36.Qd4!? Qg5 37.Bd3 Nd3 38.Qd3 Kg8 39.Qe3+-) 36...Rg5= (36...Re5?? 37.Rg7 Kh8 38.Rh7 Kg8 39.Qg7) 37.Qb6 h5 (better 37...Rg6 38.Qc5 Qg5 39.Rg7 Rg7 40.Qc2 Rg6 41.Qg6 Kg6-+) 38.Qd4 Re5 (38...Rg6 39.Qa7 d4 40.Rg7 Rg7 41.Qg7 Kg7 42.Kg1 Nh3 43.Bh3 Qh3 44.f4 d3 45.f5 d2 46.f6 Kf7 47.f4 d1Q 48.Kf2 Qhf3) 39.b6+- Qg5 40.Rc1?? (better 40.b7 Re1 41.b8Q Rf1 42.Rg7 Qg7 43.Qg7 Kg7 44.Qf4 Rf2 45.Kg3+-) 40...Ne2 (better 40...Qh4!? 41.b7 Re2=) 41.Be2+- Re2 42.Qd3 Kh6 43.Qe2 Qf4 44.Kg2 Qg5 45.Kf1 Qc1 46.Qe1 Qc4 (46...Qc8!? 47.Qa5 Kg6+-) 47.Kg2+- d4?? (47...Qc8+-) 48.Qd2 (better 48.Qb1 Qa4 49.b7+-) 48...Kh7 49.Qa5 Qc8 50.Qh5 (50.Qe5 d3 51.Qe4 Kh8 52.Qd3 e5+-) 50...Kg8 51.Qg6 (51.Qb5 Qb7 52.Qc5+-) 51...e5 (51...Qd7 52.Qb1 Qb7+-) 52.a5 (better 52.Qd6 e4 53.fe4 Kh7+-) 52...Qa6 53.Qe8 (better 53.Qe6 Kh7 54.Qf5 Kh6 55.Qb1+-) 53...Kh7 54.Qh5 (54.Qe5 d3 55.Qh5 Kg8 56.Qd5 Kh8+-) 54...Kg8 55.Qe5 d3 56.Qd5 Kh7 57.b7 (57.b7 Qg6 58.Kf1+-) 1–0. Salmons,Calum (1755) – White,S (2110), Hastings Masters, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 a5)

9.d4 fe5 10.de5 Nh6 11.Bd3 Nf7 12.Bb2 Nc5 (12...g5 13.h3 Bg7 14.Qe2 Qc7 15.Nbd2 Nde5 16.b6 Qd6 17.Bb5 Ke7=; 12...Qc7 13.Qe2 g5 14.h4 g4 15.Ng5 Ng5 16.hg5 Bg7 17.Rh7 Rh7+=; 12...Bc5 13.Nbd2 0-0 14.0-0 b6 15.Qc2 Ng5 16.Ng5 Qg5 17.Bh7 Kh8+/-; 12...g6 13.0-0 Bg7 14.Re1 0-0 15.Bd4 b6 16.Nbd2 Ra7 17.Rc1 Rc7+=; 12...Ng5 13.Nbd2 Nc5 14.Bc2 Bd7 15.Nd4 Nf7 16.N2f3 Be7 17.Qb1 g6+=; 12...Be7 13.Qc2 h6 14.Bd4 0-0 15.0-0 b6 16.Rc1 Bc5 17.Qc3 Ng5+=) 13.Bc2 (13.0-0 Be7 14.Bd4 Bd7 15.Be2 0-0 16.Nbd2 a4 17.Qc2 Rc8+=) 13...a4 (13...Bd7 14.a4+= (14.Nc3 Be7 15.0-0 Qb6 16.Qe2 0-0 17.Rac1 Rac8+=) 14...Be7 15.Nbd2 Rc8 16.Rc1 0-0 17.0-0 Qc7+=) 14.0-0 Be7 (14...Qb6 15.Qe2 Bd7 16.Nc3 Be7 17.Nd4 0-0+=) 15.Nd4 (15.Bd4!?+/- Qa5 16.Nc3 Bd7 17.Rb1 Rc8+/-) 15...Ne5= 16.Ne6 Be6 17.Be5 0-0 18.Nc3 Bf6 19.Bf6 Rf6 20.Na4 (20.Ba4? d4 (20...Na4?! 21.Na4 Qa5 22.Nc5 Qb5 23.Rc1=) 21.Bc2 dc3 22.Bh7 Kh7 23.Qh5 Rh6 24.Qc5 Qh4-+) 20...Na4 21.Ba4 Qa5 22.Bb3 Qb5 23.a4 Qc5 24.Rc1 Qd6 25.Rc4 Qb6 26.Rd4 Raf8 27.Ba2 (27.Bd5? Bd5 28.a5 Qa7-+) 27...Qb2 28.Rd2 (28.Bd5?? Rf2 29.Rf4 Rf1 (29...R2f4?? 30.Be6 Kh8 31.Rf4 Qb6 32.Qd4 Qb1 33.Kf2 Rf4 34.Qf4 Qc2 35.Kg3 Qg6 36.Qg4 Qd3 37.Kh4+-) 30.Qf1 Qb6 31.Qf2 Qf2 32.Rf2 Bd5-+) 28...Qb6 29.Qb3 (29.Bd5? Bd5 30.a5 Qa7-+) 29...Qb3 30.Bb3 Rf4 31.Re1 (31.Rd5? Rb4-+) 31...Rb4 32.Bd5 (32.Rd5? Rb3 33.Rde5 Bc4-+) ½–½. dereksmalls (2445) – mbiamchess (2325), gameknot.com, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

9.d4 fe5 10.de5 Nh6 11.Bd3 Nf7= 12.Bb2 g6 (12...g5 13.h3=) 13.0-0 Bg7 14.Re1 0-0 (14...g5 15.Qa4+=) 15.Re2 (15.Bd4 Qc7 16.Qe2 Nc5+/-) 15...a4 (15...Ng5 16.Nfd2=) 16.Bd4+= b6 17.Nc3 Nc5 18.Bc2 Bd7 19.Rb1 Ra5 20.Rb4 Qe8 21.Qb1 Nd8 22.Re1 Ndb7 23.Nh4 (23.Qb2 Bh6+=) 23...Bh6 (23...Qd8 24.Qb2+=) 24.Be3 (24.Rd1 Qb8+=) 24...Be3 (24...Bg7!? 25.Nf3 Nd6=) 25.Re3+/- Ne4 (25...Nb3 26.Rg3 (26.Na4?! Nd2 27.Qd1 Nc4+/-; 26.Ra4?! Nd2 27.Qb4 Nc4+=; 26.Bb3?! ab3 27.Qb3 Ra7+/-) 26...Qf7 27.Rf3+/-) 26.Ne4 (26.Be4!? de4 27.Ne4 Rb5 28.Nf6 Rf6 29.ef6 Rb4 30.Qb4 Qf8+-) 26...de4+/- 27.Be4 (27.Ba4 Nc5 28.Bc2 Qe7+=) 27...Nc5 28.Ng6 Rf7 29.Nf4! Rg7 30.Bf3 Bb5 31.Nh5 (31.Nh5 Kh8 32.Ng7+-) 1–0. Vekemans,Denis (1950) – Johnsen,Gunnar (2130), Lille FRA, 5th Luc Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

9.d4 fe5 10.de5 Nh6 11.Bh6 gh6 12.Nbd2 Bg7+=.

5.a3 Bd7

6.d3 b5 7.Bb2 Nc6 (7...a5 8.Qd2=) 8.Be2 Nge7 9.0-0 Ng6 10.Re1 Be7 11.Bf1 0-0 12.dc4 bc4 13.b5 Nb8 14.a4 a6 15.Nc3 Bb4 16.Nd4 (16.Qd4 Bc3 17.Qc3 ab5 18.ab5 Ra1 19.Ra1 Bb5=) 16...Qb6 (16...ab5 17.ab5 Ra1 18.Qa1=+) 17.Re3 Bc3 (better 17...ab5!? 18.Ncb5 Bc5-/+) 18.Bc3+= ab5 19.Bb4?? (19.ab5 Ra1 A) 20.Ba1?! Qb7= (20...Bb5? 21.Qb1+-); B) 20.Qa1+-) 19...Rc8 20.ab5 (20.a5 Qa6=+) 20...Ra1-/+ 21.Qa1 Bb5 22.Bd6 Nc6 23.Nc6 Bc6 24.Ra3 Qd8 25.g3 Ra8 26.Ra7 h6 27.h4 Ra7 28.Qa7 Qd7 (28...Qe8 29.Bg2-/+) 29.Qb8 (29.Qd7 Bd7 30.Bg2 Ba4=+) 29...Kh7-/+ 30.h5 Ne7 31.Bh3 Nc8 32.Bc7 (32.c3 Qe8-/+) 32...d4 33.Bd6 Qb7 (33...Bb7 34.Qc7 Qc7 35.Bc7 Be4-+) 34.Qb7 Bb7 35.Bc5 d3 (35...Be4 36.Bd4 Bc2 37.Bf1=+) 36.cd3=+ cd3 (better 36...c3!?=+) 37.Kf1= Bf3 (37...Be4 38.Ke1+=) 38.Ke1+= Bh5 (38...Bd5+=) 39.Kd2 (better 39.Bg2+-) 39...Bf3= 40.Bf1 g6 41.Bd3 Bb7 42.Bb5 Kg7 43.Bd7 f6 44.ef6 (44.Bd4 fe5 45.Be5 Kf7 46.Bc8 Bc8=+) 44...Kf6=+ 45.Bc8 (45.f4 g5-/+) 45...Bc8-/+ 46.Ke3 Kf5 47.f3 (47.Bf8 h5-/+) 47...h5 48.Be7 Bb7 49.f4 e5 50.fe5 Ke5 51.Bd8 Kf5 ½–½. Sikora,Matous (1775) – Baierlein,M (2040), 12th Orlova Open A, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 b5 7.c3 a5= 8.Bb2 (8.ba5 Nc6=) 8...Qc7 9.Be2 Nc6 10.d4 f6 11.ef6 Nf6 12.0-0 (12.a4 ba4 13.b5 Na7-/+) 12...Bd6-/+ 13.g3 (13.Re1 0-0-/+) 13...0-0 14.Nbd2 ½–½. Will,Dominik (2145) – Schramm,Matthias (2005), 19th Rhein–Main–Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3+/- b5 7.Nc3 a5 8.Nd4 (8.dc4 dc4 9.Bg5 Be7+=) 8...ab4+= 9.Ncb5 c3 10.Be3 (10.Nd6 Bd6 11.ed6 Nf6=) 10...ba3= 11.Nc3? (better is 11.Qb1=) 11...Bb4-/+ 12.Bd2 Qc7 13.Nce2 Bd2 14.Qd2 Qe5 15.Qc3 (15.Qc1 Qd6 16.Qg5 g6-+) 15...a2 (better is 15...Qd6!?-+) 16.Nb5-/+ Qc3 17.Nec3 (17.Nbc3 Nf6-/+) 17...Bb5 18.Nb5 Ra5 (better is 18...Kd7 19.Nc3 Ra3-/+) 19.d4? (better is 19.Nc3+=) 19...Nc6-+ 20.c4 dc4 21.Bc4 Nf6 (better is 21...Nb4 22.Kd2 Nf6-+) 22.Ra2+= Kd7 23.Kd2 (23.Ra5 Na5 24.Bd3 Rc8=) 23...Ra2+= 24.Ba2 Ra8 25.Bc4 Ne4 (25...Ra4 26.Rc1+=) 26.Ke3= Nd6 27.Be2 (27.Bd3 Nb5 28.Bb5 Kd6=) 27...Rb8 (27...Nf5 28.Kd3+=) 28.Nd6= Kd6 29.Rd1 Ne7 30.Bd3 (30.Bc4 Rb2=) 30...Nd5+= 31.Kf3 Rb3 32.Rd2 f5 33.g3 Rb4 34.Bf1 Nf6 35.Bg2 (35.Be2 g5+=) 35...Ne4 36.Ra2?? Rb3-+ 0–1. Strater,Heinz (1940) – Zahn,Richard (1965), Niederrhein–ch, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.cd3 (7.Bd3 Ne7+=) 7...Nc6= 8.d4 a6 (8...Rc8 9.Nc3=) 9.Nbd2 (9.Nc3 f6 10.Bf4 fe5 11.Ne5 Nf6+=) 9...f6 (9...Nh6 10.Bd3+=) 10.Bd3+= Qc7 (10...fe5 11.de5 g6 12.0-0+=) 11.Bb2+- fe5 (11...Nh6 12.0-0+-) 12.de5 (12.Ne5!? Nf6 13.0-0+-) 12...Nge7 13.0-0 Nf5? (13...Ng6 14.g3+-) 14.Rc1 (14.Bf5 ef5 15.Ng5 Be7+- (15...Ne5?? 16.Be5 Qe5 17.Re1 Qe1 18.Qe1 Be7 19.Qe5+-)) 14...Qb6?? (14...g6 15.Bf5 gf5 16.Ng5+-) 15.Nb3 (15.Bf5!? ef5 16.e6 Bc8+-) 15...Be7? (better 15...g6!?+-) 16.Bf5+- ef5 17.Qd5 (17.Nc5 Bc5 18.Rc5 Qd8+-) 17...Qb5?! (17...Nd8 18.Nfd4 Be6 19.Qf3+-) 18.Qb5 (better 18.Nc5 Bc8 19.Rfe1 Ra7+-) 18...ab5 19.Nc5 (19.Nbd4 Nd8+-) 19...Bc5 (19...Bc8 20.e6+-) 20.Rc5 (20.bc5?! Ke7+-) 20...0-0 (20...b6 21.Rc2 Nd8 22.Rd1+-) 21.Rb5 Rab8 22.Rd5 Be6 23.Rd6 Rfe8 24.Ng5 (24.Rc1 Rbc8+-) 24...Bc4 25.Rc1 (25.Re1!? h6 26.Nf3 Rbd8+-) 25...Ne5 26.Be5 Re5 27.f4 (better 27.h4 b5 28.a4+-) 27...Re3?? (better 27...Rd5 28.Rb6 Rd4+-) 28.Rc4 Ra3 (28...Re7 29.a4+-) 29.Rcd4 (29.Rc7!? Ra1 30.Kf2 Ra2 31.Kg3 h6+-) 29...Raa8 (29...Re8 30.Rd8 Rae3 31.Nf3+-) 30.Rd7 h6 (30...Re8 31.h3+-) 31.Ne6 (31.Ne6 Kh8 32.Ng7 Ra1 33.Kf2 Ra2 34.Kf1 Ra1 35.Ke2+-) 1–0. Ulrich,Helena Irene – Nguyen,Jenny Ha_Linh, Bad Blankenburg GER, EUR Team Championsh, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 Bd7)

6.d4 a5= 7.ba5 Qa5 8.c3 Ba4 9.Qd2 Nc6 10.Be2 Nh6 11.0-0 Be7 12.Bd1 (12.Qb2 Nf5=) 12...Nf5=+ 13.Bc2 Bc2 14.Qc2 h5 (14...b5 15.Qe2=+) 15.Qd2 (15.Bg5 Bg5 16.Ng5 Ra7=) 15...b5=+ 16.Bb2 Qd8 17.Re1 g5 18.Rf1 g4 19.Ne1 Bg5 20.Qe2 Qe7 21.Nc2 f6 (21...Na5 22.Ra2=) 22.ef6 Qf6 23.Ne3 (23.Bc1!?=) 23...0-0 24.Nf5 ef5 (24...Qf5 25.Qd1-/+) 25.f4 Bh6 26.Qf2 Rfe8 27.Kh1 (27.Nd2 Ne7=+) 27...Re4-/+ 28.g3 (28.Bc1 Nd4 29.cd4 Qd4 30.Qd4 Rd4=+) 28...Rae8 29.Ra2?? (better 29.Qg2 h4 30.Nd2-/+) 29...Re2-+ 30.Qg1 (30.Bc1 Rf2 31.Raf2-+) 30...Qe6 31.a4 (31.Qg2 Rg2 32.Kg2 Qe2 33.Kg1-+) 31...Qe4 (31...Qe4 32.Rf3 Qf3 33.Qg2 Qg2) 0–1. Jaberansari,Daniel – Gosling,B (1825), 14th South Wales Int, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 Bd7)

6.d4 a5= 7.ba5 Qa5 8.c3 Nc6 9.h4 (9.Be2 Nge7=) 9...b5=+ 10.Bb2 f6 11.g4 (11.Be2!?=+) 11...fe5-/+ 12.Ne5 Ne5 13.de5 Bc5 14.Bg2 Ne7 15.Nd2 (15.f4!?-/+) 15...0-0-+ 16.Nf3 (16.0-0 Ng6 17.Nf3 Nf4-+) 16...Ng6 (16...Rf4 17.h5-+) 17.0-0 (17.h5 Nf4 18.Bf1 Bc6-+) 17...Nf4 18.Nd4 (18.Qc2 Nd3-+) 18...Nd3 19.Qe2 Qc7 20.Nf3 Rf4 21.Bc1 (21.g5 Re4 22.Qd2 Rg4-+) 21...Nc1 (21...Rg4 22.Be3-+) 22.Rac1 Rg4 23.h5 (23.Ra1 Qa5 (23...Ba3?! 24.Nd4 Rg6 25.h5-+) 24.Qb2 Rf8-+) 23...Rf8 (23...Be8 24.h6-+) 24.Ra1 (24.Rb1 Re4 25.Qd1 Ref4-+) 24...Re4 25.Qc2 Qd8 26.Qc1 (26.Qd2 Qe8 27.h6 Qg6-+) 26...Rg4 27.Qd1 (27.Nd4 Rff4 28.f3 Rh4-+) 27...Qe8 28.Nh2 Rg5 29.Kh1 (29.Nf3 Rh5 30.Qe2 Qg6-+) 29...Re5 30.h6 g6 0–1. Lengyel,Laszlo (2220) – Havasi,Janos (2235), HUN–chT, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 cd3 7.cd3 a5 8.ba5 (8.b5 Bb5 9.Nc3 Ba6=) 8...Qa5 (8...Nc6 9.Be2=) 9.Bd2 Qb6 10.d4 (10.Be2!? d4 11.Bf4=) 10...Nc6=+ 11.Bc3 Na5 (11...Nh6!?=+) 12.Bd3 Nc4 Increasing the pressure on the isolated pawn on a3 (12...Ne7 13.0-0=) 13.0-0+= Nh6 (13...Nb2 14.Bb2 Qb2 15.Nbd2+=) 14.a4 Nb2? (better 14...Be7+=) 15.Bc2?? (better 15.a5 Nd1 16.ab6 Ra1 17.Ba1+-) 15...Nd1-+ 16.Rd1 Bb4 17.Bb2 (17.Bb4 Qb4 18.Nbd2 Ke7-+) 17...Nf5 (17...0-0 18.Na3-+) 18.g4 (18.Nc3 Be7 19.Rab1 Qa5-+) 18...Ne7 19.Nc3 (19.Ba3 h5 20.g5 Rc8 21.Bb4 Qb4-+) 19...Rc8 20.Rd3 (20.a5 Qa7 21.Rd3 h5-+) 20...Bc3 (better 20...Qa5 21.h3-+) 21.Bc3 0-0 (21...Ng6 22.Rb1 Qa7 23.Re3-+) 22.Rb1 (22.a5 Qa6-+) 22...Qa6 (better 22...Qa7 23.Bd1 Ba4 24.Ra1-+) 23.a5 (23.Re3 Ba4 24.Bd3 b5-+) 23...Nc6 (better 23...Ba4! 24.Rb6 Bc2 25.Ra6 Bd3 26.Bb4 ba6 27.Be7 Rc1 28.Kg2-+) 24.Re3 (24.Kg2 Na5 25.Ra1 Qb6-+) 24...Na5 25.Nd2 (25.Bd3 Nc4 26.Bb4 Rfe8-+) 25...Nc4 (25...Qa7 26.Nf3 Ba4 27.Ba4-+) 26.Rh3 (26.Nc4 dc4 27.Ra1 Qb6-+) 26...h6 27.Bd3 (27.Nc4 Qc4 28.Kg2 f6-+) 27...Nd2 28.Bd2 Qa2 29.Rd1 (29.Bf4-+) 29...Ba4 30.Bb1 Qb2 (30...Qb2 31.Bh6 gh6-+) 0-1. Makhmudov,Shukhrat (2115) - Lonoff,M (2120), Titled Tuesday, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 Ne7

6.d3 b5 7.d4 (7.a4 Ng6+=) 7...Ng6 8.g3 (8.Be2 a5=) 8...Nc6 (8...a5 9.ba5 Qa5 10.Bd2=+) 9.c3 (9.a4 Qb6 10.c3 a5 11.ab5 Qb5=) 9...a5=+ 10.Bb2 (10.ba5 Be7=+) 10...f6 11.ef6 gf6 12.Bg2 Qc7 (12...e5 13.a4 e4 14.ab5 ef3 15.Bf3 Nb4 16.cb4 Bb4 17.Nc3=) 13.0-0 Bd7 14.Nbd2 (14.Re1 Bd6=+) 14...a4 15.Re1 0-0-0 16.h4 Bg7 17.Nf1 Nge7 18.Bc1 h6 19.Ra2 (19.Ne3 Qd6=+) 19...e5-/+ 20.Rae2 e4 (20...Bf5 21.Rd2=+) 21.N3h2 f5 22.Bf4 Qb7 23.f3 Ng6 24.Bd6 h5 25.Bc5 Bf6 26.fe4 de4 27.Nd2 (27.Rf2 Nh4 28.Be4 fe4 29.Rf6 Nf5 30.Re4 Rdg8=) 27...Rhg8 (27...Qc7 28.d5 Qg3 29.dc6 Bc6 30.Bb6-+) 28.Nhf1 (28.Re4 Qc7 29.R4e3=) 28...Nce7 (better 28...Nh4!? 29.gh4 Bh4-/+) 29.Rf2 (29.Be4 Nd5 30.Bd5 Qd5=) 29...Nd5 (better 29...Bc6 30.Qh5 Rh8=) 30.Qc2 (better 30.Qh5 Nh4 31.gh4+=) 30...Nh4! 31.gh4 Bh4 32.Ne3 Bf2 33.Kf2 Qc7 (33...Nf4 34.Kf1-+) 34.Nd5? (better 34.Ndc4 Rg2 35.Kg2 Nf4 36.Kh1 bc4 37.Nc4=+) 34...Qg3-+ 35.Ke2 Qg4 (35...Qg2?! 36.Kd1 Kb7 37.Kc1-/+) 36.Nf3 (36.Ke3 Qg2 37.Ne7 Kb7 38.Bd6 Qh3 39.Ke2 Rg2 40.Kd1-+) 36...Qg2 37.Kd1 Qf3 38.Kc1 (38.Qe2 Rg3 39.Qf3 Rf3 40.Rg1-+) 38...Rg2 39.Qb1 (39.Qg2 Qg2 40.Ne3-+) 39...Qf2 40.Rd1 Be6 41.Ne7 (41.Nb6 Kb7 42.Qa2 Qa2 43.Rd2 Qd2 44.Kb1 Qe1) 41...Kd7 (41...Kd7 42.Nd5 Bd5 43.Qa2 Qa2 44.Rd2 Qd2 45.Kb1 Qe1) 0–1. Jongsma,Daan – Bakels,Anton, Haarlem op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 Qb6 7.c3 (7.Be2 Nf5=) 7...a5 8.Bb2 (8.ba5 Qa5 9.Be2 Bd7=) 8...Bd7 (8...Nf5 9.Be2=) 9.Nbd2 Nbc6 (9...Nf5 10.Ng5=) 10.Be2 (10.Bc4!? ab4 11.cb4 Nb4 12.ab4 Ra1 13.Qa1 dc4 14.Nc4 Qb4 15.Nfd2=) 10...Ng6=+ 11.0-0 Nf4 12.Ne1 Ne2 13.Qe2 Be7 14.Kh1 (14.Qg4 A) worse 14...ab4 15.Qg7 (15.ab4?! 0-0=) 15...Rf8 16.ab4 Ra1 17.Ba1+-; B) 14...0-0=+) 14...0-0 15.f4 ab4 16.ab4 Ra1 17.Ba1 Ra8 18.Nef3 Ra2 19.Ng5 h6 20.Ngf3 Qa6 21.Qd1 Na7 (21...Nb4!? 22.cb4 Bb4-+) 22.Qc1-/+ Nb5 23.Bb2 Qa4 24.Nb1 Qb3 25.Rf2 Be8 26.Kg1 Bd7 ½–½. Van den Berg,B – Muris,V, NLD–ch U20 Hengelo, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 (=6.d4 cd3) 7.Bd3 Ng6 8.h4 (8.0-0 Qc7 9.Qe2 a5+=) 8...Qc7= 9.Bb2 Nc6 10.Bb5 Bd7 11.Qe2 Nf4 12.Qf1 (12.Qd2 Ng6 13.Bc6 Bc6=) 12...a6 13.g3? (13.Bd3 d4 14.Be4 Ne5 15.Nd4 Nc4-/+) 13...Ng6 (better is 13...Nb4!? 14.Bd7 Kd7 (14...Qd7? 15.ab4 Nh5 16.Bc3+-) 15.ab4 Qc2-+) 14.Bc6-/+ Bc6 15.Qe2 Bb5 16.Qe3 Qc2-/+ 17.Bd4 Ne7 18.g4 Qe4 19.Qe4 de4 20.Nfd2 Nc6 21.Bb2 Bd3 22.Rh3 Rd8 23.Re3 Be7 24.Ne4 Be4 25.Re4 Bh4 26.Nc3 0-0 27.Nd1 Rd3 28.Bc3 Rfd8 29.Rc1 Bg5 30.f4 Bh4 31.Ke2 Rh3 32.Nb2? Rh2-+ 33.Ke3 Bf2?? 34.Kf3-/+ Ba7 35.Kg3? Rf2 36.Ree1 h6 37.Red1-/+ Rd1 38.Rd1 Rc2 39.Rd3 Bf2 40.Kh3 Be1 41.Na4 Bc3 42.Nc3 Kh7 43.Na4 Rc4-+ 44.Kg3 Rd4?? 45.Rd4+= Nd4 46.Nc5 Nc2 47.Nb7+/- Na3 48.Nc5 Kg8 49.Na6 Kf8 50.Nc7 Ke7 51.f5 Kd7 52.Na6 Kc6 53.Kf4 Nc2 54.Ke4 Kb6 55.Nc5 ef5= 56.gf5 Nb4 57.e6 fe6 58.Ne6 Kc6 59.Ng7 Kd6 60.f6 Nd5 ½–½. Banovac,Mirko (2115) – Schmitz,Manuela (2020), Split CRO, 2nd Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 Nbc6 7.c3 a6 8.Bg5 h6 9.Bh4 Qc7 10.Be2 Ng6 11.Bg3 Be7 12.0-0 Bd7 13.Nbd2 Na7 14.a4 b6 15.Qc2 (15.a5 ba5 16.Ra5 Nc6=) 15...0-0-0 (15...h5!? 16.h3 Nc6=) 16.Rfb1 Rdg8 17.b5 a5 18.h3 Qd8 19.Nh2 Bh4? (19...Be8 20.Nhf1=) 20.Rf1 (20.Nc4 dc4 21.Qe4 Kc7+-) 20...Kb7 (20...Bg3 21.fg3 Rf8 22.Rae1+=) 21.Bh5 (21.Nc4 dc4 22.Bf3 Kc7+-) 21...Be8 (21...Bg3 22.fg3 Be8+-) 22.Ndf3 (better 22.Nc4!? dc4 23.Bg6 Bg3 24.Be4 Kb8 25.fg3+-) 22...Be7 23.Ng4 (better 23.Qe2+=) 23...Nf8-/+ 24.Qd2 Bg5 (24...g6 25.Nh6 Rg7 26.Bg4-+) 25.Ng5 (better 25.Ne3!? Be3 26.Qe3=+) 25...hg5-+ 26.Qe2 Rh5 27.Nf6 gf6 28.Qh5 fe5 29.Rad1? (better 29.Be5 g4! 30.hg4-+) 29...f5 30.Qe2 (30.Qh6 f4 31.Bh2 e4-+) 30...f4 31.Bh2 e4 32.Kh1 (32.Qg4 Bg6 33.Rde1 Bf5-+) 32...Rh8 (32...f3 33.Qe3 fg2 34.Kg2-+) 33.Rfe1 (33.Qd2 f3 34.Rg1 fg2 35.Kg2 Bh5-+) 33...Qf6 (33...f3 34.Qc2 fg2 35.Kg2-+) 34.Qd2 (34.Rd2-+) 34...f3 (better 34...Ng6-+) 35.Be5-/+ fg2 36.Kg2?? (better 36.Kh2 Qh6 37.Bh8 Qh8 38.Qg5-/+) 36...Qf3-+ 37.Kh2 (37.Kg1 Rh3 38.Bh2-+) 37...Rh3 (37...Rh3 38.Kg1 Rh1) 0–1. Povilaitis,Tomas – Mickus,Benas, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 cd3 (=6.d3 cd3) 7.Bd3 Nd7 8.0-0 Nc6 9.Re1 Be7 10.Nbd2 (10.b5 Na5+=) 10...a6 (10...f6 11.Bb2 0-0 12.ef6 Bf6 13.Qb1+=) 11.Bb2 (11.c4 0-0+-) 11...Nb6 (11...b5!?+=) 12.Rc1 Na4 13.Ba1 b5 14.Nb3 (14.Nd4 Bd7+=) 14...Bd7 15.Nfd4 Bg5 16.Rb1 Rc8 17.Nc6 Rc6 18.Qg4 h5 19.Qg3 (19.Qf3 h4+=) 19...Kf8 (19...Nc3 20.Bc3 h4 21.Qf3 Rc3 22.Nc5+-) 20.Bd4 Bh4 (20...h4 21.Qh3+=) 21.Qf3+- Qe8 (21...Ke8 22.Na5 Rc7 23.Rbd1+-) 22.Qf4 (22.Na5 Rc7+-) 22...Bd8 23.Nc5 Nc5 24.Bc5 Be7 25.Bd4 Bd8 (25...h4 26.h3+=) 26.Qe3 Rc8 27.g3 (27.Rbd1 Kg8+-) 27...Rb8 (27...h4 28.g4+=) 28.f4 (28.Bc5 Kg8+=) 28...Bc7 29.Rf1 White plans f5 29...Qd8 30.f5 Bb6 31.c3 (31.f6 Bd4 32.Qd4 Qb6 33.fg7 Kg7+-) 31...Bd4 (31...Ke8 32.f6 h4 33.fg7+-) 32.cd4+- ef5 33.Bf5 Bf5 34.Rf5 Rh6 (34...h4 35.Qf3 Rb7 36.Rf1+-) 35.Qf3 Qd7 (35...Rb7 36.Rf1 Qe8 37.Qd5+-) 36.Rc1 (better 36.Rf1!? Rb7 37.Rf7 Qf7 38.Qd5 Rf6 39.Qc5 Kg8 40.ef6 gf6+-) 36...Kg8+- 37.Rc5 Rd8 38.Rh5 Rh5 39.Qh5 Qe6 40.Qf3 Kf8 41.Kg2 Kg8 42.h3 Kf8 43.g4 Kg8 44.Kg3 (44.Qc3 Qb6+-) 44...Qh6 45.Qf4 (45.Rd5?! Rd5 46.Qd5 Qe3 47.Qf3 Qd4+=) 45...Qg6 46.Qf5 Qh6 47.Qf4 (47.g5 Qb6+-) 47...Qg6+- 48.Rc7 Rf8 49.Qf3 (better 49.Qf5 Qh6 50.g5+-) 49...Rd8? (better 49...Qb1 50.Qe3 Qg6+-) 50.Qf5+- Qe6 51.h4 (51.Qe6!? fe6 52.g5 Ra8+-) 51...Qe8 52.h5 Qf8 (52...Ra8 53.g5 Qe6 54.Qe6 fe6 55.g6+-) 53.g5 Re8 54.Kg4 Rd8 (54...Re6 55.g6 Re7 56.Re7 Qe7 57.Qc8 Qf8 58.Qf8 Kf8 59.Kf5+-) 55.h6! g6 (55...gh6 56.Rc6 Double attack (56.Rc6 Decoy)) 56.h7! Kh7 57.Rf7 (57.Rf7 Qf7 58.Qf7 Kh8 59.Qf6 Kh7 60.Qd8 a5 61.e6 ab4 62.Qd7 Kh8 63.e7 ba3 64.e8Q) 1–0. Westphal,Wolfgang – Beerbaum,Joerg, Mecklenburg VP LL1, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 Bd7 7.Nc3=.

6.d4 Nf5 7.Be2 Be7=.

6.d4 Nf5 7.g3 Be7 8.Bg2 Nc6 9.0-0 Qb6 d4 becomes the focus of attention 10.c3 h5 (10...0-0 11.g4 Nh4 12.Nh4 Bh4 13.g5+-) 11.h4 (11.a4 Bd7+=) 11...a5= 12.Bb2 Bd7 13.Nbd2 Rc8 14.Re1 ab4 15.ab4 Nb4 16.cb4 c3 17.Bc3 Rc3 18.Ra8 Bd8 19.Qa1 Qc7 (19...Rc2 20.Rd1=) 20.Rb1 (better 20.Ra7+=) 20...Bb5?? (20...0-0 21.Ra7=) 21.Qa5 (better 21.Rd8 Kd8 22.Qa8 Qc8 23.Qa5 Ke7 24.Qb5+-) 21...Bd3+= 22.Qc7 Rc7 23.Rba1 0-0 24.Bf1 Be4 25.b5 (25.R8a7 Bf3 26.Nf3 Rc3+=) 25...Rc3 26.R8a3 (26.Ne4!? de4 27.Nd2=) 26...Ra3=+ 27.Ra3 Bb6 28.Ra4 Rc8 (28...Bc2 29.Ra3-/+) 29.Ne4 (29.Bh3 Rc1 30.Kh2 Nd4 31.Rd4 Bd4 32.Ne4 Be5-/+) 29...de4-/+ 30.Ng5 Nd4 31.Ne4 Nf3 32.Kg2 Ne5 33.Nd6 Rc2 34.Ra8 Kh7 35.Ne4 f5 (35...Kg6!?-/+) 36.Ng5=+ Kg6 37.Nh3? (better 37.Re8!? Rf2 38.Kh3=+) 37...Ng4 38.Bd3 Rd2 39.Bc4?? (better 39.Be2 Bf2 40.Nf4 Kh7 41.Re8-+) 39...Ne3 (39...Ne3 40.Kf3 Nc4-+) 0–1. Campiglia,Guido – Vaz,L (2010), II Latin American Cup, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 Nf5 7.h4 Be7 8.h5 h6 9.g4 Nh4 10.Nh4 Bh4 11.Bg2 Bd7 (11...0-0 12.Nd2=) 12.Be3 (12.Nd2 a5 13.Nf3 Be7=) 12...a5=+ 13.Nd2 ab4 (13...Be7 14.c3=+) 14.ab4= Ra1 15.Qa1 Na6 (15...Be7 16.c3=) 16.c3 Nc7 17.Ke2 (17.Qa5 Be7=) 17...Nb5 18.f4 Be7 19.Nf3 Qb8 20.Qb2 Kd8 (20...b6 21.Ra1=) 21.Kf2 (21.Ra1 g6+=) 21...Kc7 (21...Rg8 22.Ra1+=) 22.Kg3 (22.Ra1 Kd8+=) 22...Qg8 23.Ra1 (23.Qa1 Qh7=) 23...g6= 24.hg6 Qg6 25.Bh3 h5 26.g5 Qd3 27.Bd2 h4 28.Kf2 Qh7 29.Rh1 Qh5 30.Rg1 Qg6 31.Rg4 Exerts pressure on the isolated pawn 31...Qd3 (31...Rh5 32.Be1=) 32.Bf1+= Qf5 (32...Qe4!?+=) 33.Rh4+- Rh4 34.Nh4 Qg4 35.Nf3 Qf5 36.Be2 Qg4 37.Bd1 Qh5 38.Bc2 Qg4 39.Qa1 Kb8? (better 39...Bc6+-) 40.Qh1 Na3 (40...Kc7 41.Qh7 Nc3 42.Bc3 Qf4+-) 41.Qh8 Kc7 42.Bh7 (better 42.Nh2 Qf4 43.Bf4 Nc2 44.Qh7 Nd4 45.cd4+-) 42...Bd8? (better 42...Ba4 43.Qg7 Bd1+=) 43.Bg8 (43.Bg8 Nb1 44.Qh2 Nd2 45.Nd2+=) 1–0. Lengyel,Laszlo (2255) – Szabados,G, HUN–chT, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.a3 Ne7)

5.c3 a5

6.ba5 Qa5 7.d4 cd3 8.Bd3 Nd7 9.0-0+= Ne7 10.Re1 Nc6 11.Bf4 h6 12.Qc2 Bc5 13.Nbd2 Qa4 14.Be3 (14.Qa4 Ra4 15.Be3 Ra3= (15...Nde5? 16.Ne5 Be3 17.Re3+-)) 14...Be3 15.Re3 Nc5 (15...Qc2 16.Bc2 Ke7 17.Nb3=) 16.Qa4 Ra4 17.Bc2 Ra3 18.Nb3 Nb3 19.Bb3 Bd7 (19...Ke7 20.Nd4=) 20.Rd1 Na5 21.Nd4 Ba4 22.Rb1 Nb3 (22...Bb3 23.ab3 (worse 23.Nb3 Nc4-/+) 23...Ke7 24.Rg3=) 23.ab3 Bd7 24.Ree1 Ke7 25.Ra1 Rha8 26.Ra3 Ra3 27.Kf1 Ra2 28.h4 g6 29.f4 h5 30.Re2 Ra1 31.Kf2 Kd8 32.Re1 Ra2 33.Kf3 Kc7 34.g4 hg4 35.Kg4 Rg2 36.Kf3 Rd2 37.Re3 Kb6 38.Kg4 Rg2 39.Rg3 Rg3 40.Kg3 Kc5 41.Kg4 b5 42.Nc2 Bc8? (better 42...Kc6+-) 43.Kg5+- d4 44.Nd4 b4 45.Ne2 Ba6 (45...Bd7 46.cb4 Kb4 47.Kf6 Kb3 48.Ke7+- (worse 48.Kf7 Kc4+-)) 46.cb4 Kb4 47.Ng3 Kc5 48.Ne4 Kd4 49.Nd6 Bd3 50.Nf7 Bc2 51.Nh8 1–0. Umpfenbach,C (2040) – Buckley,M (2110), ENG–GER match women, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Bc5 7.d3 cd3 8.Bd3 Nd7 9.0-0 Ne7 10.Qe2 Ng6 11.Bg5 Be7 (11...Qc7!? 12.Re1 b6=) 12.Be7+= Qe7 13.Bg6 hg6 14.Nbd2 b6 15.c4 Bb7 16.Rac1 Nc5 (16...g5 17.h3+=) 17.cd5 Bd5 18.Nc4 Bc4 19.Rc4 Rd8 20.g3 (20.Rd1 Rd1 21.Qd1 Qc7+-) 20...Rd5 21.Nd4 (21.Rfc1 Qd7=) 21...Qd7= 22.Nc6 Rd2 23.Qg4 (23.Qd2 Qd2 24.Rd4 Qd4 25.Nd4 g5+=) 23...Rh5= 24.Rcc1 (24.Qf4=) 24...Kf8 (better 24...Nd3!? 25.Rc4 Ne5 (25...Ra2 26.Rd4 Ne5 27.Rd7 Nd7 28.Rd1+-) 26.Ne5 Re5=+) 25.Rcd1+= Kg8 (25...Rd5 26.Rd5 ed5 27.Qd7 Nd7 28.f4+-) 26.Rd2 (26.Ne7 Kh7 27.Rd2 Qd2+-) 26...Qd2 27.Rd1 (better 27.Qd1!? Ne4 28.Qf3+-) 27...Qa2= 28.Qd4 Kh7 29.Ne7 Qe2 30.Kg2 Qe4 (better 30...Ne4!? 31.Nc6 Rf5-+) 31.Qe4=+ Ne4 32.f4 (32.Nc6 Rf5 33.f4 Nc3=+) 32...f6 (better 32...g5-/+) 33.Rd6?? (better 33.Rd4 Nc5 34.ef6 gf6 35.Rd6=) 33...Nd6-+ 34.ed6 Rb5 35.d7? (35.Kf2 Rb3 36.Ke2 Rb2 37.Ke3=) 35...Rb2 36.Kh3 (36.Kf3 Rd2 37.Nc8 a4 38.Nb6 a3-+) 36...Rd2 0–1. Fiori,Hector (2095) – Gargiulo,Lucas, ARG–ch U20, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Bc5 7.d3 cd3 8.Bd3 Nd7 9.0-0 Ne7 10.Qe2 h6 11.a4 0-0 12.Nd4 Qb6 13.Nb3 f6 14.ef6 Rf6 15.c4 Bd6 16.Bb2 Rf7 17.N1d2 Qc7 18.g3 (18.Qe6?? Bh2 19.Kh1 Ne5 20.Bh7 Kh7 21.Be5 Be6 (worse 21...Be5 22.Qf7 Ba1 23.Ra1+=) 22.Bc7 Bc7-+) 18...b6 19.Rac1 (19.Qe6?? Ne5 20.Qf7 Kf7 21.Be5 Be5-+) 19...Nc5 20.Bb1 (20.Nc5!? bc5 21.Ne4+-) 20...Nf5 21.Nd4 The backward pawn on e6 becomes a target (21.Rfe1!?+=) 21...Nd4=+ (21...Na4 22.cd5 (22.Ne6? Qe7-+) 22...Nd4 23.Bd4+-) 22.Bd4 e5 (22...Na4 23.cd5 Qd7 24.de6 Qe6 25.Qd3+-) 23.Bc5 Bc5 (worse 23...Qc5 24.cd5 Qb4 25.Ne4+-) 24.cd5 (24.Qh5 Bb7 25.Qg6=) 24...Rf2!-/+ 25.Rf2 (25.Qf2 Bf2 26.Kf2 Qd6-+) 25...Bf2-+ 26.Qf2 (26.Kf2 Qc1 27.Kg2-/+) 26...Qc1 27.Kg2 Bg4 (27...Bb7!? 28.Be4 Rf8 29.Qe3-+) 28.Ba2 Qb2 29.Ne4 (29.Bb3 Rf8 30.Qe3 Rc8 31.d6 Kh8-+) 29...Qf2?? (better 29...Bf3! 30.Kh3 Qf2 31.Nf2-+) 30.Kf2 (30.Nf2 Bf5 31.Nd1 Rc8-+) 30...Rc8 (30...Rf8 31.Ke1 Rf3 32.Kd2-+) 31.d6-/+ Kf8 32.Bb3 Ke8 33.Ke3 (33.Nd2-+) 33...Kd7 34.Bd5 Bd1 35.Bb7 (35.Bc6 Rc6 36.bc6 Kc6-+) 35...Rc4 (35...Ba4?! 36.Bc8 Kc8 37.Nc3-/+) 36.Bd5 (36.Bc6 Kd8 37.Nf2-+) 36...Re4! 37.Ke4 (37.Be4 Ba4 Combination; 37.Ke4 Bc2) 37...Kd6 (37...Ba4?! 38.Ke5 Bb5 39.Be6 Kd8 40.Kd4-/+) 38.Bc6 Bc2 39.Ke3 Ba4 40.Kd3 (40.Ke4 Bc2 41.Ke3 Kc5-+) 40...Kc5 (40...Kc5 41.Ke3 Bb5-+) 0–1. Hermann,Manfred (2405) – Libeau,Rene (2390), BL2–W9192 Germany, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Bc5 7.d3 cd3 8.Bd3 Nd7 9.Qe2 Ne7 10.h4 (10.0-0 Qc7+=) 10...h5 (10...Qc7 11.h5=) 11.Nbd2 a4 12.c4 Nb6 13.0-0 Nf5 14.Bf5 ef5 15.e6 (better 15.Rd1!?+=) 15...Be6=+ 16.Bb2 Qe7 17.Bg7 Rg8 18.Bd4 dc4 19.Rac1 (19.Rfe1 0-0-0 20.Be3 Be3 21.Qe3 Qc7=+) 19...Rg4 (19...Bd4 20.Nd4 Rg4 21.N4f3=+) 20.Bc5= Qc5 21.Ne5? Increases the pressure on c4 (better 21.Ng5!? 0-0-0 22.Ne6 fe6 23.Qe6 Kb8 24.Nf3=+) 21...Rh4-/+ 22.Ndf3? (better 22.Nef3 Rg4 23.Ne5-+) 22...Re4-+ 23.Qd2 (23.Qb2 a3 24.Qa1 Qb5-+) 23...Re5 24.Ne5 Qe5 25.Rfe1 Qc5 (25...Qb5 26.Rb1 Qc6 27.Qd4-+) 26.Qg5 Rd8 27.Qf6? (27.Qh5 Kd7-+) 27...Kd7 (better 27...Rd2!? 28.Qh4-+) 28.Red1 Nd5 29.Rd4 (29.Qc3 Rc8-+) 29...Qb5 30.Qe5 Rc8 31.Qe2 Rc5 (better 31...Ke8-+) 32.Rcc4 (32.Rdc4 Ke8 33.Qf1 Rc6 34.Rc6 Qf1 35.Kf1 bc6 36.Rc6 Nb4-+) 32...Rc4 (better 32...Ke7 33.Qf1 Ne3 34.fe3 Rc4-+) 33.Rc4 Kd6 (33...a3 34.Qd3 Qb2 35.Ra4-+) 34.Qd3 f4! 35.Qa3 (35.Rf4 Qd3 Pinning (35...Qd3 Deflection)) 35...Ke5 (35...Kd7 36.Qd3 Qa6 37.Qe4-+) 36.Qd3 Qb2 (36...Bd7 37.Re4 Kf6 38.Qd1-+) 37.Ra4 Qc1 (37...Bf5!? 38.Qf1-+) 38.Kh2 Qc5 (38...Qc3 39.Re4 Kd6 40.Qb5-+) 39.Qe4 (39.Re4 Kf6 40.Qf3 Bg4-+) 39...Kf6 40.Rd4 h4 (40...Ke7 41.Rd2-+) 41.Rd2 (41.Qh7 h3 42.gh3 Ke7-+) 41...Qd6 42.f3 (42.Qf3 b5-+) 42...Qe5 43.Qh7 Qg5 44.Qh8 Ke7 45.Qb2 Qg3 46.Kh1 Qe1 47.Kh2 Qg3 (47...Ne3 48.Re2 Qg3 49.Kg1-+) 48.Kh1 b6 49.Re2 h3 50.Qa3 Kf6 (50...Kd7 51.Qa4 Kd6 52.Qa3 Kc6 53.Qa8 Kb5 54.Qa3-+) 51.Qb2 Ke7 52.Qa3 Kf6 53.Qb2 Kg6 54.Qh8 Nf6 55.Kg1 Bc4 56.Rf2 h2! 57.Qh2 Qh2 58.Kh2 b5 59.Rc2 Nd5 60.a3 Kf5 61.Rc1 Ne3 62.Kg1 Ke5 63.Kf2 Kd4 64.g3 (64.Rh1 Nc2 65.Rh4 Na3-+) 64...fg3 65.Kg3 Kd3 66.Kf4 Nc2 0–1. Sedlak,Nikola (2565) – Tratar,Marko (2505), 2rd Zupanja CRO, Open A, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Bc5 7.d3 cd3 8.Bd3 f5 9.0-0 Ne7 10.Qe2 0-0 11.Nbd2 a4 12.Rb1 Ng6 13.g3 Nd7 14.Re1 Qc7 Can e5 get defended? 15.Nf1 (15.c4 Nb6=) 15...Be7 16.h4 Nc5 (16...Qc3 17.Bd2 Qa3 18.Bc1=+) 17.h5 Nh8 18.b6 Qd8 19.c4 Ne4 20.cd5 Nc3 21.Qb2 Nd5 (worse 21...Nb1 22.d6 Bd6 23.ed6 (23.Qb1 Be7-/+) 23...Qd6 24.Bb1+-; worse 21...Qd5 22.Qc3 Qf3 23.h6+=) 22.Bc4 Qe8 (22...f4 23.gf4 Nf4 24.Qd4=) 23.Bd5 ed5 24.Qd2 (24.h6 Be6=) 24...Be6 25.Nd4 Bc5 26.h6 g6 27.Rd1 Nf7 (27...Rd8!?=) 28.Ne6+= Qe6 29.Qd5 Qe5 30.Bf4 Qd5 31.Rd5 Rfc8 (31...g5 32.Rc5 gf4 33.Rc7 fg3 34.Ng3+-) 32.Rd7 g5 33.Be3 Rab8 34.Rc1 Bf8 (34...Be3 35.Rc8 Rc8 36.Ne3 (36.fe3?! Rb8=) 36...Nh6 37.Rb7 Rc1 38.Kg2+-) 35.Rb7! Bh6 (35...Rb7 36.Rc8 Deflection (36.Rc8 Overloading)) 36.Rc8 Rc8 37.Rc7 (37.Rd7 Re8+-) 37...Rb8 38.Bc5 Nd8 (38...Bf8!? 39.b7 Nd6+-) 39.b7!+- Nb7 (39...Rb7 40.Rc8 Combination; 39...Nb7 40.Ba7 Decoy) 40.Ba7 Re8 41.Rb7 Re2 42.a3 Bf8 43.Be3 (43.Bd4 Re4 44.Bb2 Re2+-) 43...f4 44.gf4 gf4 45.Bd4 Ba3 46.Ra7 Re6 47.Ra4 Rg6 (47...Bd6 48.Nd2+-) 48.Kh1 Bd6 49.Ra6 (49.Nd2 Re6+-) 49...Be7 50.Rg6 hg6 51.Kg2 Kf7 52.Kf3 g5 53.Kg4 Kg6 54.f3 Bd8 (54...Bd6 55.Nd2+-) 55.Nd2 Be7 56.Nc4 Bb4 57.Ne5 Kh6 58.Nf7 Kg6 59.Ng5 Bd6 60.Nh3 Bc7 61.Nf4 Kf7 62.Kf5 Bd6 63.Ke4 Bb4 64.Nd3 Bd2 65.Be3 Ba5 66.f4 Bc7 67.f5 Kf6 68.Bd4 Ke7 69.Bf2 Kf7 70.Ne5 Kf8 71.Kd5 Bd8 72.Ke6 Kg7 73.Bc5 Bf6 (73...Kh7+-) 74.Be7 Be5 75.Ke5 Kf7 76.Ba3 (76.Ba3 Ke8 77.Ke6 Kd8 78.f6 Kc7 79.f7 Kc8 80.f8Q Kc7 81.Qc5 Kb7 82.Qb5 Ka7 83.Bc5 Ka8 84.Qa6 Kb8 85.Bd6; 76.Bd6 Ke8 77.Ke6 Kd8 78.f6 Ke8 79.f7 Kd8 80.f8Q) 1–0. Martin Fuentes,A (2390) – Vergara Anton,Diego (2020), TCh–ESP Div, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Bc5 7.d4 cd3 (=6.b5 Bc5 7.d3 cd3).

6.b5 Ne7 7.d3 cd3 8.Bd3 Ng6 9.0-0 Nd7 10.Re1 Bc5 11.Be3 Be3 (11...Qc7 12.Bd4=) 12.Re3+= Qc7 e5 draws heavy fire 13.Qe1 (13.Bg6 fg6 14.Nbd2 Nb6+=) 13...b6 14.Na3 (14.Nbd2 Bb7=) 14...Bb7 15.Nc2 Rc8 16.Bg6 hg6 17.Ng5 (17.Ncd4 Nc5=) 17...Qd8 (17...Nc5 18.f3=+) 18.f4= Rc4 19.Nd4 Nc5 20.Qg3 (20.Qe2 Qc7=) 20...Qe7 21.Rf1 Ne4 Exerts pressure on the backward pawn 22.Re4? (better 22.Qe1=+) 22...de4-+ 23.f5?? (better 23.Qe3-+) 23...gf5 24.Rf5 (24.Rd1-+) 24...ef5 25.Nf5 (25.e6 fe6 26.Nge6 Rd4 27.Qg6 Qf7 28.Qf7 Kf7 29.Nd4-+) 25...Qc5 26.Kh1 (26.Kf1 Rc3 27.Nd6 Ke7 28.Nf3-+) 26...Rc3 27.Ng7 Ke7 28.Nf5 Kd7 (28...Kd7 29.Qc3 Qc3 30.h3 e3 31.Nh7 e2 32.e6 fe6 33.Kh2 e1Q 34.Nf8 Rf8 35.a3 Rf5 36.a4 Qcg3) 0–1. Herbold,Manfred (2170) – Hertneck,Gerald (2540), 3rd Rhein Main op, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Ne7 7.d3 cd3 8.Bd3 Ng6 9.a4 (9.Bg6 hg6 10.Ba3 Ba3 11.Na3 Nd7=) 9...Nd7= 10.Qe2 Qc7 Can e5 get defended? 11.Bg6 hg6 12.0-0 b6 13.Re1 Bb7 14.Nd4 (14.Ba3 Nc5=) 14...Rc8 15.f4 Be7 16.Bb2 Rh4 17.g3 Rh6 18.Nd2 Nc5 19.Rec1 Qd7 20.Qe3 Kd8 (20...Rh5 21.Ba3=+) 21.N2f3 (21.Ba3 Qc7=) 21...Kc7 (21...Rh3 22.Ba3=+) 22.Nc6 (22.Ng5!? Bd8 23.Ba3=) 22...Bc6-/+ 23.bc6 Kc6 (23...Qc6 24.c4-/+) 24.c4=+ Kb7 Attacks the isolani on a4 25.cd5 Qd5 26.Ba3 Rhh8 (26...Qb3 27.Rc3 Qa4 28.Ng5=+) 27.Rab1= Rhd8 28.Rb5 (28.Rc3!?=) 28...Qd3-/+ 29.Rc3 (29.Qd3 Rd3 30.Bc5 Rc5 31.Rbc5 bc5 32.Kg2-+) 29...Qe3-+ 30.Re3 Rc7 (30...Rd7 31.Rc3 Na4 32.Rc8 Kc8 33.Be7 Re7 34.Ng5-+) 31.Kg2? (better 31.Rc3!?-/+) 31...Na4-+ 32.Be7 Re7 33.Ra3 (33.Reb3 Rd5-+) 33...Ka6 34.Rb1 Nc5 35.Ra2 a4 36.Nd2 (36.Rc2 Ka5-+) 36...b5 37.Rc1 (37.Kf3 Red7 38.Rc2 Rd3 39.Ke2 a3-+) 37...Rd5 (37...Red7 38.Nf3 Nd3 39.Rca1-+) 38.Rac2 (38.Nf1 Nd3 39.Rc6 Kb7-+) 38...Nd3 39.Rb1 b4 40.Ne4 b3 (40...Ka5 41.Kf3-+) 41.Rc4 (41.Rc8 Ra7-+) 41...Kb5 42.Nd6 Ka5 43.Ra1 Nc5 44.Ne4 (44.Rac1 Rc7 45.Ne8 Rc6-+) 44...b2 45.Rb1 Ne4 (45...Ne4 46.Rb2 Nc5-+) 0–1. Pols,Wiggert – Den Hartog,Marijn, Dutch B Youth, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 Ne7 7.d4 cd3 (=6.b5 Ne7 7.d3 cd3).

6.d3 ab4 7.dc4 Nc6 8.cd5 Qd5 9.Qd5 ed5 =.

6.d3 b5 7.Na3 Bd7 8.Nc2 ab4 9.cb4 (9.Nb4 Bb4 10.cb4 Nc6=) 9...Nc6 10.a3 Nge7 11.Be2 (11.Qd2 Ng6 12.dc4 dc4=) 11...Ng6=+ 12.Bb2 (12.d4 Be7=+) 12...Qc7 e5 becomes the focus of attention 13.dc4 (13.d4 Be7=+) 13...bc4 14.0-0 Nce5 15.Ne5 Ne5 16.f4 c3 17.Bc1 Nc4 18.Qe1 Nd6 19.Rf3 Ne4 20.Bd3 Rc8 21.Nd4 Be7 (21...Ba4 22.Rh3=+) 22.Be4 de4 23.Qe4 Qc4 24.Qd3 (24.Re3 Ba4-/+) 24...Bf6 25.Qc4 Rc4 26.Nc2 Ba4 27.Ne3 (27.Rf2 Kd7-/+) 27...Rc7 (better 27...Bd4!?-+) 28.Ng4=+ Bd4 (28...Bd8 29.Ne5=+) 29.Be3 c2 (29...Be3!? 30.Re3 c2=+) 30.Bd4= c1Q 31.Rc1 Rc1 32.Kf2 f6 33.Rc3 Rc3 34.Bc3 Kd7 35.Ne3 Bb3 (35...Rd8 36.h4=+) 36.g4 h6 (36...Rc8 37.Bb2=) 37.h4= White prepares g5 37...Kc6 (37...h5 38.g5 Ra8 39.Bb2=) 38.g5 (38.h5 Ra8 39.Bb2 Kd6=) 38...hg5=+ 39.hg5 (39.fg5? Rh4 40.Kg3 fg5-+) 39...fg5 40.fg5 (40.Bg7? Rg8 41.Be5 gf4 42.Bf4 Ra8-+) 40...Rf8 (40...Rh5 41.g6=+) 41.Ke2 (41.Kg3 g6=) 41...g6 42.Bf6 Ra8 43.Ng2 (43.Bb2 Kb5=) 43...Bc2 (43...Ra3!? 44.Nf4 Kb5-/+) 44.Bb2 Kb5 45.Ke3 Kc4 46.Kf4 (46.Bc1 Rh8=+) 46...Bf5 (46...Kb3 47.Bd4-/+) 47.Ne3 (47.Ke5 Kb3 48.Bd4 Ra3=+) 47...Kb3-/+ 48.Bd4 Ka3 (48...Ra3 49.Bc5-/+) 49.Bc5 Ka4 50.Nc4 Kb5 51.Nd6 Kc6 52.Ke5 Ra1 53.Nc4 (53.Kf6!? Bd3 54.Ke6 Re1 55.Kf6=+) 53...Rf1 (53...Bd3 54.Nd6-/+) 54.Ne3 (54.Nd6 Kd7-/+) 54...Rf3 (better 54...Rg1!? 55.Kf6 Bd3-/+) 55.Kf6=+ ½–½. Buecker,Stefan (2300) – Schmidt,Bodo, BL2–W8788, 1988. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

6.b5 a4

7.Ba3 Ne7 8.d3+= cd3 9.Bd3 Nd7 10.0-0 Ng6 11.Bf8 Kf8 12.Re1 Qc7 Now all is on e5 13.Bc2 (13.Bg6!? hg6 14.Qd4+=) 13...Nde5=+ 14.Ne5 Ne5 15.Ba4 (15.b6 Qd6 16.Ba4=+) 15...Nd3 (15...Bd7 16.Qd4 Nc4 17.b6 Nb6 18.Bb3-/+) 16.Re2 (16.Qd3 Ra4 17.Nd2 Bd7=) 16...Qf4 (16...Qc4 17.Bb3 Qb5 18.Rd2=+) 17.Bc2 (better 17.Qd3!? Ra4 18.Nd2=) 17...Nb2=+ 18.Qe1 Bd7 19.Nd2 Bb5 20.c4 (20.Re3!? Nc4 21.Nc4 Bc4 22.Rf3-/+) 20...Nc4 21.g3 (21.a4 Qf6-+) 21...Nd2 (21...Qf6 22.a4-+) 22.Qd2 (22.Rd2 Qf6 23.Rb1-+) 22...Qd2 23.Rd2 g6 24.Rb1 Ra5 (24...Bc6 25.Bb3-+) 25.Bd3 (25.Rb2 Kg7-+) 25...Bc6 (25...Bd3 26.Rd3 b5 27.a3-+) 26.Rbb2 (26.f4 Ke7-+) 26...Kg7 27.Bc2 Rc5 28.f4 h5 29.Kf2 h4 30.g4 Rc4 (30...f6 31.Ke1-+) 31.Ke3 (31.Kf3 f6 32.Bd3 Rc5-+) 31...g5! 32.Rd4 (32.fg5 Rg4 Pinning (32...Rg4 Deflection)) 32...Rd4 33.Kd4 gf4 34.Ke5 f3 35.Bd1 (35.Kf4 f2 36.Bd3 Re8-+) 35...d4! 36.Rd2 (36.Kd4 Rd8) 36...Rd8 37.Kf4 (37.Bb3 b5-+) 37...f6 38.g5 e5 (38...fg5 39.Kg5 e5 40.Kh4-+) 39.Kf5 fg5 40.Ke5 Rf8 (40...Rf8 41.Kd4 g4-+) 0–1. Van Amerongen,Marleen (2065) – Wuts,Helene (2040), NLD–ch U20 Girls, 1993. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4)

7.Na3 Nd7=+ 8.Rb1 b6 9.Nc2 Qc7 10.Qe2 Ne7 11.Nb4 Ng6 e5 seems the pivot of the position 12.Nc6 (12.d4!? cd3 13.Nd3-/+) 12...Bb7-+ 13.d4 cd3 14.Qd3 Bc6 15.bc6 Qc6 16.Nd4 Qc7 17.f4 Rc8 18.Bd2 Bc5 19.Be2 Ne7 (19...0-0 20.Qb5-/+) 20.Bd1 Bd4 21.cd4 Qc4 22.Qa3 Nc6 (22...Qd4 23.Ba4 Ng6 24.Qb4 Qb4 25.Rb4=+ (worse 25.Bb4 Nf4 26.0-0 g5-/+)) 23.Rc1 Qd4 24.Be3 Qe4 25.Bf3 Qg6 (better 25...Qf5=+) 26.Qd6? (better 26.Qa4!? Nc5 27.Bc5 bc5 28.Rc5 Qb1 29.Bd1=) 26...Qd3-/+ 27.Kf2 ½–½. Simon,Laurent – Williams,Simon (2185), Isle of Man op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4)

7.d4 cd3 (=7.d3 cd3).

7.d3 cd3

8.Bd3 Bc5 9.0-0 Ne7 (9...Qc7 10.c4 Ne7 11.cd5 Nd5 12.Ba3+=) 10.Nd4 (10.c4 dc4 11.Bc4 Nd7+=) 10...Qb6 11.Be3 0-0 12.Qh5 g6 13.Qe2 (13.Qg5 Nd7+=) 13...Nf5 (13...Nd7 14.f4=) 14.Nf5+= ef5 15.Bf4 (15.Re1 Re8 16.f4 f6 17.Bc5 Qc5 18.Qe3 Qe3 19.Re3 Nd7-/+) 15...Re8 16.Nd2 (16.Qf3 Be6=) 16...Nd7= 17.Nf3 (17.c4 d4=) 17...Nf8 (17...f6!?=+) 18.Rab1 (18.Rfe1 Bd7+=) 18...Ne6 19.Bd2 Bd7 (19...f6 20.ef6 Nc7 21.Qd1+=) 20.Kh1 (20.Rfd1 Rac8=) 20...Rac8 21.Bc2 Ra8 ½–½. Seryogin,Peter V (2245) – Schirov,Sergey (2000), Tambov RUS, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4 7.d3 cd3)

8.Bd3 Nd7

9.0-0 Bc5 10.Ba3 (10.c4 Ne7+=) 10...Ne7 (10...Qc7 11.Bc5 Nc5 12.Na3+=) 11.Bc2 (11.c4 Qc7 12.cd5 Nd5 13.Bc5 Nc5+=) 11...Ba3 (11...Qc7 12.Bc5 (12.Ba4? Ba3 13.Na3 Qc3-+) 12...Nc5 13.Qd4=) 12.Na3+= Ng6 (12...Qc7 13.Qd4+= (13.Ba4? Qc3 14.Re1 Qa3-+)) 13.Re1 (13.Bg6 hg6 14.Qd4 b6+=) 13...Qe7 14.Nb1 Nc5 (14...Qc5 15.Bd3=) 15.Nbd2 (15.c4 dc4 16.Na3 Nd3 17.Bd3 cd3 18.Qd3 Nf4+=) 15...Bd7 16.Rb1 0-0 17.Rb4 (17.c4 Nf4+=) 17...f5= 18.ef6 (worse 18.Ba4 Nd3 (18...Na4?! 19.Ra4 Bb5 20.Rb4=) 19.Rd4 Ne1 20.Qe1 Rfc8-/+) 18...Qf6 19.Bg6 (worse 19.Ba4 Nd3 (19...Ra4?! 20.Ra4 Na4 21.Qa4=; 19...Qc3?! 20.Rd4-/+) 20.Rd4 Ne1 21.Qe1 Be8-/+) 19...Qg6 20.Ne5 Qf5 (20...Qf6 21.Qf3=) 21.Qe2 (21.Qf3 Qc2 22.Qe3 A) worse 22...Qa2 23.Re2+- (23.Nd7?! Nd7 24.Qe6 Kh8=); B) 22...Rad8+=) 21...Be8 22.f3 (22.Qe3 b6=) 22...Nd7 (22...Bg6 23.Qe3 b6 24.Rd4+=) 23.Nd3 (23.a3 Ne5 24.Qe5 Qc2=) 23...Bg6 24.Nf4 The backward pawn on e6 becomes a target (24.Rd4 Rfe8=) 24...Nc5 (24...Rfe8 25.a3= (25.Ne6? Bf7-+)) 25.Nf1 (25.Ne6 Rfe8 26.Nc5 Re2 27.Re2 Qc2-+) 25...Rfe8 (25...b6 26.Rd4= (26.Ne6? Rfe8-+)) 26.Ne3 Qf6 (26...Qg5 27.Ng4=) 27.Qd2 (27.Rd4 Rad8=) 27...Red8 (better 27...Qg5!?=) 28.Ng4+- (worse 28.Ng6 Qg6 29.Rd4 Rf8+=) 28...Qf5 29.Ng6 (29.Re5!? Qc2 30.Qc2 Bc2 31.Ne6 Ne6 32.Re6+-) 29...Qg6= 30.Ne5 Qe8 31.b6 (31.Qg5 Rdc8+=) 31...Nd7 1–0. Panella,Fiammetta (2040) – Arnetta,Marianna (2010), Arvier ITA, Team Ch women, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4 7.d3 cd3 8.Bd3 Nd7)

9.0-0 Qc7 10.Re1+=.

9.0-0 Qc7 10.Qe2 Ne7 11.Bf4 (11.c4 dc4 12.Bc4 Ng6+=) 11...Ng6= Can e5 get defended? 12.Bg3 Nb6 (12...Nc5 13.Bc2=) 13.Nbd2 (13.Rc1 Bc5+=) 13...Qc3= 14.Rfc1 Qa3 15.Rc7 Be7 16.h4 (16.Qe3 0-0=) 16...Bd8 17.Rc2 Qb4 h4 seems the pivot of the position 18.Rb1 Qg4 19.Qe3 Qh5 (19...Nd7 20.Nh2 Qh5 21.Rbc1=) 20.Be2+= Qh6 (20...Nf8+=) 21.Qd4 (better 21.Qh6!? gh6 22.h5+=) 21...Ne7 22.Bf4 Qg6 23.Rbc1 Nf5 24.Qc5 Bd7 25.Bg5 f6 26.ef6 gf6 27.g4 (27.h5 Qf7 28.Be3-+) 27...Ne7 (27...Nh4 28.Bh4 Rc8 29.Qc8 Qg4 30.Kf1 Bc8 31.Rc8 Nc8 32.Rc8-+) 28.Qd4? (28.h5 Qg7 29.h6-+) 28...e5-+ 29.Ne5 fe5 30.Qe5 0-0 (better 30...Rg8-+) 31.Nf3? (31.h5 Qe8 32.Be3 Nec8-/+ (32...Bb5 33.Bd4 Nf5 34.Qh8 Kf7 35.Qh7 Ke6 36.gf5 Rf5 37.Bg4+-)) 31...Qg7 (31...Bg4!? 32.Nd4 Bf5 33.Rc3-+) 32.Qg3 (32.Qg7 Kg7 33.Nd4 h6-+) 32...h6 (32...Nc4 33.Bc4 dc4 34.Rc4 Bb5 35.Rf4-+) 33.Be7 (33.Be3 Rc8-+) 33...Qe7 (33...Be7 34.g5-+) 34.Ne5 (34.g5 hg5 35.Ng5 Kh8-+) 34...Qh4 35.Qg2 Be8 36.Bf3 Qf6 (better 36...Bf6!? 37.Bd5 Nd5 38.Qd5 Bf7 39.Nf7 Qg4 40.Kh2 Qf4 41.Kg2 Rf7 42.Rc8 Rc8 43.Rc8 Kg7 44.Rc4-+) 37.Bd5 Nd5 (37...Kg7!? 38.Bb7 Ra5-+) 38.Qd5-/+ Kh8 39.Qb7 Qe5 40.Qa8 Bb6 41.Qh1 (better 41.Qg2!?-/+) 41...Qg5-+ 42.Re1? (42.Qe4 Bf2! 43.Kg2 A) 43...Bb5? 44.Rc8 Bc5 45.R8c5 (45.R1c5?! Qd2 46.Kh1 Qd1 47.Kh2 Qd6 48.Kg1 Qd1 49.Kh2 Qd6 50.Kh1 Qd1 51.Kh2=) 45...Qd2 46.Kh3+-; B) 43...Bg6-+) 42...Bg6 (better 42...Qg4 43.Qg2 Qh5-+) 43.Rce2 Bd3 44.Qh5 (44.Qg2 Bb5 45.Rb2 Bd4-+) 44...Qh5 (44...Qf4 45.Kh1 Ba5 46.Re8 Qf3 47.Kh2 Qf2 48.Kh1 Be1 49.Qh6 Kg8 50.Qe6 Kg7 51.Re7 Rf7 52.Qe5 Qf6 53.Rf7 Kf7 54.Qd5 Ke7 55.Qd3 Qh4 56.Kg2 Qg4 57.Kf1-+) 45.gh5 Be2 46.Re2 Kg7 47.Re6 Rf6 48.Re7 (48.Rf6 Kf6 49.Kg2 Kg5-+) 48...Kf8 49.Rb7 (49.Re2 Kf7-+) 49...Ke8 50.Kg2 (50.a3 Bc5 51.Rc7 Bf2 52.Kg2 Bb6-+) 50...Rf2 (50...Bf2?! 51.Rb8 Kd7 52.Ra8-+) 51.Kg3 Rf6 (51...Be3!? 52.a3-+) 52.Rb8 Kd7 53.Ra8 (53.Kg4 Be3 54.Ra8 Rf4 55.Kg3 Rf5-+) 53...Bc7 54.Kg2 Rf4 55.Rh8 Rg4 (better 55...Rb4!? 56.Rh7 Kc8 57.Rh6 Rb5 58.Rh8 Kb7 59.Kf3-+) 56.Kf3 Rf4 57.Ke2?? (57.Kg2 Rb4 58.Rh7 Kc8 59.Rh6 Rb5 60.Rh8 Kb7 61.Kf3-+) 57...Rf6 (better 57...Rb4 58.Rh7 Kc8 59.Rh6 Rb5 60.Ra6 Rb2 61.Kd3 Ra2 62.h6-+) 58.Ra8? (better 58.Kd3-+) 58...Rf5 59.Ra4 Rb5 (59...Rh5?! 60.Rd4 Kc8 61.a4-+) 60.Kf3 Rh5 61.Kg4 Rh2 62.Rd4 Ke6 63.a4 Be5 64.Rb4 Rg2 (64...h5 65.Kf3-+) 65.Kh3 (65.Kh5 Bg7-+) 65...Rg3 66.Kh4 Kf5 67.Kh5 Ra3 68.Kh4 (68.Rc4-+) 68...Bf6 (68...Bf6 69.Kh5 Rh3 70.Rh4 Rh4) 0–1. Rahls,Peter (2190) – Stolz,Mike (2280), BL2–N9596 Germany, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

9.Qe2 Qc7 10.Bf4 (10.0-0 b6+=) 10...Ne7= 11.Bg3 Ng6 e5 seems the pivot of the position 12.h4 Nc5 13.Bc2 Bd7 14.h5 Ne7 15.Nbd2 (15.h6!?=) 15...Qa5=+ 16.c4 dc4 17.0-0 Bb5 18.Nd4 Nd5 19.Nb5 Qb5 20.Nc4 Qa6 21.Qg4 f5 22.ef6 Nf6 23.Qd4 (23.Qe2 Be7=+) 23...Rd8 24.Qh4 Be7 25.h6?? (25.Ne5 0-0=+) 25...g6?? (25...g5 26.Nd6 Rd6 27.Qg5-+) 26.Rad1? (26.Ne5 Rd5=+) 26...0-0?? (better 26...Nfe4 27.Rd8 Bd8 28.Ba4 Qa4 (28...Na4 29.Qe4 0-0 30.Nd6+-) 29.Nd6 Nd6 30.Qa4 Na4 31.Bd6 Nc3-+) 27.Ne5=+ Rd1 28.Rd1 Qe2 29.Rc1 (29.Ba4 A) 29...Qa2?! 30.Bb5-/+; B) 29...Na4 30.Rd7 (30.Qa4? Ne4-+) 30...Bc5 31.Rg7 Kh8 32.Nf7 (32.Qa4?! Bf2 33.Bf2 Qe5=) 32...Rf7 33.Rf7 Qd1 34.Kh2 Ng4 35.Kh3 Nf2 36.Rf2+-; C) 29...Ra8 30.Bb3 Nb3-/+) 29...Qh5 30.Qc4 (30.Rd1 Rc8=+) 30...Nd5 (30...Qh6 31.Bf4 Qh5 32.Bg3-+) 31.Rd1 (31.Rb1!?-/+) 31...Qh6-+ 32.Rd5 (32.a3 b5! 33.Qd4 Rc8-/+) 32...b5 (32...ed5 33.Qd5 Kg7 34.f4-+) 33.Qd4 (33.Qc5 Bc5 34.Rc5 Qc1 35.Kh2 Qa3 36.Rb5 Qa2-/+) 33...ed5 34.Qd5 Kg7 35.Ng4 (35.f4 g5 36.Nc6 Qd6 37.Ne7 Qe7 38.fg5 Rd8-/+) 35...Qc1 36.Bd1? (36.Kh2 Rd8 37.Be5 Kf8 38.Qf3 Kg8 39.Bf4-/+) 36...Rf7 (better 36...Rd8!? 37.Be5 Kf8 38.Qf3 Kg8 39.Ne3-+) 37.Qe5? (better 37.Be5 Kg8 38.Bb2 Qb2 39.Nh6 Kg7 40.Qf7 Kh6 41.Qe7=) 37...Kg8 (37...Bf6 38.Nf6 Qd1 39.Kh2-/+) 38.Kh2 (38.Qd5 Kf8 39.Qa8 Kg7 40.Be5 Bf6 41.Nf6 Qd1 (41...Rf6?! 42.Qd8 Ne4 43.Qd7 Kf8 44.Qd8 Kf7 45.Qd7 Kg8 46.Qe8 Rf8 47.Qe6 Rf7 48.Qe8 Rf8 49.Qe6 Rf7 50.Qe8 Rf8=) 42.Kh2 Rf6 43.Bf6 Kf6 44.Qf8 Ke6 45.Qe8 Kd6 46.Qb5 Qd4 47.Qb8 Ke7 48.Qa7 Kf6-+) 38...Qg5 (38...h5 39.Qb8 Bf8 40.Ne3-+) 39.Qb8 Rf8 40.Qb5 Qh5?? (better 40...h5 41.Qc4 Kh7-+) 41.Kg1+- Qd5 42.Ba4?? (better 42.Be2 Kg7 43.Be5 Bf6 44.Bf3+- (44.Bf6?! Rf6 45.Qb2 Qd6=)) 42...Qa2-/+ 43.Bd1 h5 44.Nh2?? (better 44.Qb6 Kg7 45.Ne5-/+) 44...h4-+ 45.Bf4 Rf4 46.Qe8 Bf8 47.Qg6 Bg7 48.Bc2 (48.Bf3 Qe6 49.Qg5 Qe1 50.Nf1 Ne6-+) 48...Qa1 49.Nf1 Qf6 (49...Qe1 50.f3-+) 50.Qe8 Bf8 51.Qe2 Qg5 52.Ne3 Qe5 53.Bb1 Bd6 54.Qc2 Re4 (better 54...Kf8 55.Qh7-+) 55.Qa2 Kg7 56.Qa7 Kh6?? (better 56...Kf6 57.Be4 Qe4-+) 57.Ng4+- Rg4?? (better 57...Kg5 58.Ne5 Re1 59.Kh2 Be5 60.g3 hg3 61.fg3 Kg4 62.Bf5 Kf5 63.Qc5 Re2 64.Kh3 Ke4+-) 58.Qh7 Kg5 59.Qg6 Kf4 60.Qh6 (60.Qf7 Kg5 61.f4 Rf4 62.Qg6) 60...Rg5 61.Qh4 Rg4 62.Qh6 Rg5 (62...Qg5 63.Qd6 Qe5 64.Qd2 Qe3 65.Qe3) 63.Qh2 Kg4 64.f3 1–0. Helin,Mikael (2065) – Jorgensen,Arne Bjorn, Politiken Cup, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4 7.d4 cd3 8.Bd3 Nd7)

9.Be3 Qc7 10.Bd4+=.

9.Be3 f5 10.Bf4 (10.0-0 Qc7+=) 10...Nc5 11.Bc2 (11.Be2 Qc7+=) 11...Ne7 12.Nh4 (12.0-0 Ng6 13.Bg5 Qa5=) 12...Ng6 (12...Qa5 13.Be3 Qb5 14.Bc5 Qc5 15.Ba4 b5 16.Bc2=+) 13.Ng6= hg6 14.Be3 Bd7 15.c4 (15.Qg4! g5 16.Bg5=+) 15...dc4-/+ 16.Nc3 Qc7 (16...Qa5 17.Bd2-/+) 17.f4 (17.Qd4!?=) 17...Bb5-/+ 18.Rb1 (18.Nb5 Qa5 19.Qd2 Qb5-/+) 18...Bc6 19.0-0 Ra5 20.Qe2 b5 21.Bd2 (21.Bd4 Qd8 22.Qe3 Nd7-+) 21...Nd7 22.Rfd1 (22.Rf2 g5!-+) 22...Bc5 (22...g5 23.h3-+) 23.Kh1 Qd8 24.Be1 Kf7 (24...Qa8 25.Ne4 fe4 26.Ba5 Qa5 27.Be4-+) 25.Bg3 (25.Bf2 Bf2 26.Qf2 Qh4 27.Qh4 Rh4-+) 25...Qa8 (25...b4 26.Qc4 bc3 27.Qc3-+) 26.Rd2 Rh3 (26...Nb6 27.a3-+) 27.Rbd1? (27.Be4 fe4 (27...Be4?! 28.Ne4 Qe4 29.Qe4 fe4 30.Rd7 Ke8 31.Rc7 Rg3 32.hg3=) 28.Rd7 Bd7 29.gh3 b4 30.Ne4 Bc6-+) 27...Ra7 (27...Rg3 28.Rd7 Bd7 29.Rd7 Ke8 30.Rc7 Rc3 31.Rc5-+) 28.Qe1 Nb6 (28...Kg8!? 29.Qe2-+) 29.Bf2 Bg2 (29...Rc3 30.Bc5 Bg2 31.Kg1+=) 30.Kg1 Bf2 (30...Rc3 31.Bc5 Qc6 32.Bb6 Qb6 33.Kg2+=) 31.Qf2 Rc3 32.Qb6 Bd5 (32...Bc6 33.Rd8 Qb7 34.Qc5=) 33.Qb5 Ra5 34.Qd7 0–1. Helin,Mikael – Hedin,Gunnar, Stockholm op2, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4 7.d3 cd3 8.Bd3 Nd7)

9.0-0 Nc5

10.Bc2 Qc7 11.Qe2 g6 (11...b6 12.Nbd2+=) 12.Bf4 f5 13.c4 dc4 14.Nbd2 h6 (better 14...c3!? 15.Nc4 Nf6 16.Nd6 Bd6 17.ed6 Qb6+-) 15.Nc4+- (15.Qc4?! Ne7+=) 15...Be7 16.Rac1 b6 17.Nd4 Bd7 (17...Bb7 18.Nd6 Bd6 19.ed6+-) 18.Nd6 Kf8 19.Rfd1 Bg5 (19...Kg7 20.Qf3 Qa7 21.Nc6 Bc6 22.bc6+- (22.Qc6?! Bd6 23.Rd6 Ne7+-)) 20.Qf3 (20.Bg5 hg5 21.Qf3 Ra7+-) 20...Bf4 21.Qa8 Kg7 22.Ba4 Ne7 23.Qf3 (better 23.Rc5!? bc5 24.Ne8 Re8 25.Qe8 Bh2 26.Kh1 Be8 27.Ne6 Kf7 28.Nc7 Be5 29.Bb3 Kf8 30.Ne6 Kf7 31.Rd8+-) 23...Be5+- 24.Nb7 Qb7 (24...Nd5 25.Nc5 bc5 26.Bb3 Bh2 27.Kh1+-) 25.Qb7+- Nb7 26.Nf5! gf5 (26...ef5 27.Rd7 Discovered attack; 26...Nf5 27.Rd7 Double attack (27.Rd7 Discovered attack); 26...gf5 27.Rd7 Discovered attack) 27.Rd7 Nc5 28.Rc5 (28.Re7 Kf6 29.Ra7 Bf4+-) 28...bc5+= 29.Re7 Kf6 30.Rd7 Rg8 31.Bb3 Rg4 32.Kf1 (better 32.Rh7!? c4 33.Rh6 Kg7 34.Re6 cb3 35.ab3+= (35.Re5?? b2 36.Re7 Kf6-+)) 32...Rb4= 33.Rd2 (33.Rh7!? c4 34.Bd1 Rb5 35.Rh6 Kf7 36.Rh4=) 33...c4-/+ 34.Bd1 Rb5 35.Be2 Rb1 36.Rd1 Rb4 37.Rc1 c3 38.Bd1 (38.Bd3 Rb2 39.Rc2 Rb1 40.Ke2 Rg1=+) 38...Rb2-/+ 39.Bb3 Bd4 40.Rc2 Rb1 (40...e5!?-/+) 41.Ke2=+ Rg1 (41...e5 42.Kd3=+) 42.Kd3 e5 43.f4 Rf1 ½–½. Evertsson,Kristian (2035) – Berg,Michael2 (2235), Stockholm op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

10.Bc2 Ne7 11.Ng5 (11.Na3 Qc7+=) 11...h6 (11...Qc7 12.Re1 Ng6 13.Qh5+=) 12.Nh7 Rh7 (12...Qa5 13.Nf8 Rf8 14.Qg4+=) 13.Bh7+- g6 14.h4 (14.Be3 Nd7=) 14...h5 (14...Bd7=) 15.g4 (better 15.Nd2!?+=) 15...hg4=+ 16.Qg4 Bd7 17.h5 gh5 (17...Bb5 18.hg6 Ng6 19.Bg6 Bf1 20.Bf7 Kf7 21.Qh5 Kg8 22.Kf1=+) 18.Qe2 (18.Qd4 Qc7 (worse 18...Bb5 19.Qc5 Bf1 20.Kf1+=) 19.Na3 Rd8=) 18...Qc7 (18...Qa5 19.c4=+) 19.Bg5 (19.Nd2=) 19...0-0-0 (better 19...Ra5!? 20.Na3 Ne4 21.Be4 Qe5=) 20.Nd2 Re8 21.Rab1 (21.c4 Ng6 22.f4 dc4+-) 21...Bg7 22.Rfe1 (22.f4 Ng6+-) 22...Nf5 23.c4 (worse 23.Qh5 Nd3 (worse 23...Be5 24.Bf5 ef5 25.Qf7+=) 24.Re2 Rh8=+) 23...Kb8 (23...d4 24.Nf3+=) 24.Qf3 (24.Bf5 ef5 25.cd5 Be5 26.Qh5 Rg8+=) 24...d4 25.Ne4 (25.Bf4 Nh6 26.Qg3+-) 25...Ne4= (25...Be5? 26.Nc5 Bh2 27.Kh1 Qc5 28.Kh2+-; 25...Qe5?? 26.Bf4 Ne4 27.Be5 Be5 28.Qe4+-) 26.Qe4 Bf8 (26...Qc4 27.Bf4 A) 27...Qa2? 28.Bf5 Bh6 29.Qd4 Rg8 30.Kh1 Bf4 31.Qf4+- (31.Qd7 Qf2 32.Qb7 Kb7 33.Be4 Kb6 34.Re2 Qh4 35.Rh2 Qh2); B) 27...Bh8=) 27.Bf5+- ef5 28.Qd4 Bc5 29.Qf4 Be6 30.Kh2 Rg8 31.Rg1 Qa5 32.b6! Bb6 (32...Qa6 33.Qd2 Re8 34.Rb5 Bf2 35.Qf2 Bc4 36.Rb4+-) 33.Rb5 (33.Qf3 f4+-) 33...Qa6 34.Be7 (34.Rgb1 Bf2 35.Qf3 Bc8+- (35...Rg5?? 36.Rb7 Kc8 37.Rb8 Kd7 38.R1b7 Qb7 39.Qb7)) 34...Rg1 (34...Rg4!? 35.Rg4 hg4+-) 35.Kg1+- Bc7 (35...Kc8 36.Rb4 Qa7 37.Qf3+-) 36.Bd6+- b6 (36...a3 37.Rc5 Bd6 38.ed6+-) 37.Qd4 White prepares the advance c5 37...Kb7 38.Rb4 (38.Bc7 Kc7 39.Qd6 Kb7 40.Qe7 Kc6+-) 38...Bd8 (38...Bd6 39.ed6 Kc6 40.Qd1+-) 39.Bc5 Bc7 40.Bb6! Bb6 41.c5 Qe2 42.Rb6 Kc8 43.Rb2 (43.a3 Qg4 44.Qg4 fg4+-) 43...Qe1 (43...Qg4 44.Qg4 fg4 45.a3+-) 44.Kh2 Qc1?? (44...Qe4 45.Rd2 Kb7+-) 45.Rd2 (45.Rd2 Kb7 46.Qd6 Qd2 47.Qd2+-) 1–0. Vavra,P1 (2295) – Natsidis,C (2175), Open Liberec CZE, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

10.c4 Ne7 11.Nc3 b6 12.Bg5 (12.Ba3 dc4 13.Bc4 Qd1 14.Rad1 Ng6+=) 12...Bb7 (12...dc4 13.Bc4 Qd1 14.Rfd1=) 13.cd5 Bd5 14.Bc2 Bc4 15.Qd8 Rd8 16.Rfd1 h6 17.Rd8 Kd8 18.Rd1 Kc7 19.Rd4 hg5 (19...Bd5!? 20.Be7 Be7 21.Rd5 ed5 22.Nd5 Kd8+-) 20.Rc4+- f6 21.Na4 Nd5 22.Nd4 Kd7 23.Nc6 Rh4 24.Rh4 (24.Nb2 f5+-) 24...gh4 25.Nc5 Bc5 26.ef6 Nf6 (26...gf6 27.a4+=) 27.h3+- Kd6 28.Kf1 Nd5 ½–½. Johnson,C (1910) – Zelnick,D (2005), ch–Oklahoma State, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

10.Nd4 Ne7 11.f4 Qb6 (11...Nd3 12.Qd3 Ng6 13.Ba3=) 12.Kh1 (12.Be3 Qc7+=) 12...Bd7 13.Na3 (13.Be3 Nf5 (worse 13...Nd3 14.Nf5 Nf5 15.Bb6 Bb5 16.Rf3+-) 14.Nf5 ef5=) 13...g6 (13...Nd3 14.Qd3 Rc8 15.c4=+) 14.Nac2 (14.c4!?+=) 14...Nf5 15.g4 (15.Rb1!?=) 15...Nd4 16.Nd4 Nd3 17.Qd3 Bc5 18.Rb1 White prepares f5 18...Ra5 b5 draws heavy fire 19.Be3 0-0 20.f5 Qc7 ½–½. Simon,Laurent – Warren,Alexander (2020), Isle of Man op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 a4 7.d4 cd3 8.Bd3+= Nd7)

10.Be2 b6+=.

6.b5 Qb6

7.a4 Bc5 8.d4 cd3 9.Ra2 d2 10.Rd2 Nh6 11.Bd3 Ng4 12.0-0 Nd7 13.Re2 f6 14.ef6 Ndf6 (14...gf6 15.c4 dc4 16.Bc4 Nde5 17.Ne5 Ne5 18.Re5 fe5 19.Qh5 Kd8 20.Bg5 Kc7+/-) 15.h3+/- Nf2 16.Rff2 Bf2 17.Rf2 0-0 18.Qe2 Bd7 19.Be3 Qd6 20.Bd4 Rae8 21.Ne5 Bc8 22.Qc2 b6 23.Qe2 Bb7 24.Nd2 (24.Qe3 Nd7 25.Rf8 Rf8 26.Nd7 Qd7 27.Bb6 Re8+-) 24...Ba8 (better 24...Qa3+-) 25.Rf6! Rf6 (25...Rf6 26.Bh7 Combination; 25...gf6 26.Bh7 Combination) 26.Bh7! Kf8 (26...Kh7 27.Qh5 Double attack) 27.Ng6 Kf7 28.Qh5 Rf5?? (28...Rc8+-) 29.Ne5 Ke7 30.Bf5 ef5 31.Qg5 Kf8 32.Qf5 Ke7 33.Qf7 (better 33.Qg5 Kf8 34.Qf4 Ke7 35.Qh4 Qf6 36.Ng6 Ke6 37.Bf6 gf6 38.Nf4 Ke7 39.Qh7 Kd6 40.Qf7+-) 33...Kd8 34.Qa7 Re5 35.Qa8 Ke7 36.Be5 Qe5 37.Qb7 Kf8 38.Qb6 Qe1 39.Nf1 Qc3 (39...Qe7 40.Qb8 Qe8 41.Qc7+-) 40.Qd8 (40.Qd8 Kf7 41.b6 Qd4 42.Kh2 Qa4 43.b7 Qf4 44.Ng3+-) 1-0. Etchegaray,P (2320) - Zuloaga Erauskin,Markel (1935), 29th Gros Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

7.a4 Bc5 8.d4 cd3 9.Ra2 Nd7 10.Bd3 Ne7 11.0-0 Qc7 12.Re2 Ng6 Will e5 fall? 13.Rfe1 0-0 14.Ng5 Nb6 15.Be3 h6 16.Bc5 Qc5 17.Re3?? (17.Nh3 Bd7=) 17...Nc4?? (17...hg5 18.Qh5 g4 19.Qg4 Ne7=) 18.Nf7 (18.Bc4!? Qc4 19.Nf3+=) 18...Ne3= 19.Nh6? (better 19.Re3!? Rf7 20.Bg6=+) 19...gh6-/+ 20.Re3 Nf4?? (better 20...Ne5 21.Qh5 Rf2 22.Qe5 Rf7-/+) 21.Qg4+- Kh8 22.Qh4 Kg7 23.Rg3 Kf7 24.Qf4 (24.Rf3 Ke8 25.Rf4 Rf4 26.Qf4 Qf8+-) 24...Ke8+- 25.Qd2 Bd7 26.Rg7 Kd8 27.g3 (27.Rh7 Rc8+-) 27...Kc7 28.Kg2 Rad8 29.f3 Rh8 30.c4 dc4 31.Qa5 Kb8 32.Be4 Bc8 (32...Qe5 33.Qb6 Qc7 34.Qc7 Kc7 35.Nd2+-) 33.f4 (33.Rc7 Qe5 34.Rc4 Rd7+-) 33...Rd4 (33...h5 34.h4+-) 34.Rc7 (34.Nd2!?+-) 34...Qa7+- 35.Qa7 Ka7 36.Bc2 Kb6 37.Rf7 Ka5 38.Kf3 Kb4 39.Ke3 Rd7 40.Rd7 Bd7 41.g4 Re8 (41...Rg8 42.h3+-) 42.Kf3 (42.Nd2 Rg8 43.h3 h5+-) 42...c3 43.h4 White plans g5 43...Bc8 44.h5 (44.g5 hg5 45.hg5 b6=) 44...b6 (better 44...Rg8=) 45.Bd1 (45.g5 Bb7 46.Kg4 Bd5 47.gh6 Rg8 48.Kh4 Bb3 49.Bb3 Kb3 50.Nc3 Kc3-/+) 45...Bd7?? (better 45...Bb7!? 46.Ke3 Rg8-/+) 46.Bc2 (46.g5 hg5 47.fg5 Rf8 48.Ke3 Rf1 49.Nc3 Kc3=) 46...Bc8+= 47.g5 hg5 (47...Bb7 48.Ke3 Bd5=) 48.h6?? (48.fg5 Bb7 49.Ke3+-) 48...Rf8-+ 49.Kg4 (49.Kg3 gf4 50.Kf2 Kc4-+) 49...gf4 50.Kf3 Bb7 51.Kf2 Bd5 0–1. Leygue,D (2250) – Doornbos,Y (2315), National I Clermont–Ferrand FRA, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

7.a4 Bc5 8.d4 Be7?? 9.h4 (9.Be2!?+-) 9...Nd7= 10.h5 f6 11.ef6 Ngf6 12.Be2 Ne4 (12...h6 13.Nh4+=) 13.Qc2+= Qc7 14.Nbd2 Nd2 15.Bd2 e5 16.Qf5 (16.h6!? g6 17.0-0+-) 16...e4+= 17.Ng5 Nf6 18.Ne6 Be6 19.Qe6 Qd7 20.Qd7 Kd7 21.h6 Rag8 22.hg7 Rg7 23.g3 h5 24.Be3 (24.0-0-0 Ke6=) 24...Ng4 25.Bg4 Rg4 26.Ke2 Ke6 27.Rh3 Kf5 (27...h4 28.Rah1=) 28.b6 (28.Bf4 h4=) 28...Rg6 29.Rb1 Rc6 30.f3 ef3 31.Kf3 Bd8 (31...Kg6!?=) 32.Rh5+= Rh5 33.g4 Kg6 34.gh5 Kh5 35.Rb5 Bb6? (35...Rf6 36.Ke2 Rd6+= (worse 36...Bb6 37.Rd5 Kg4 38.Rg5 Kh4 39.Rg7+-)) 36.Rd5+- Kg6 37.Bf4 Rf6 (37...Bc7 38.Bc7 Rc7 39.Ra5 Rh7+-) 38.Rd7 Rf7 39.Rd6 Rf6 40.Ke4 1–0. Szymanski,Marcin (2410) – Mindeguia Guruceaga,Juan Jesus (2185), Reda IM, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

7.a4 Nd7 8.d4 cd3 9.Bd3 Bc5 10.0-0 f5 (10...f6 11.ef6 Ngf6 12.c4=) 11.Nbd2 Ne7 (11...g5 12.Ng5 Ne5 13.Qh5 Ke7 14.Qe2 Nd3 15.Qd3+=) 12.Nb3 0-0 (12...Ng6 13.Nc5 Qc5 14.Be3 Qc3 15.Bd4+=) 13.Nbd4 (13.c4 Qc7 14.Bg5 Bb4+-) 13...Ng6+= 14.Qe2 Be7 (14...Re8 15.Bg5+=) 15.Bc2 (15.Rd1 Nc5+=) 15...Nc5 16.Ng5 (16.c4 Ne4+=) 16...Bg5 (16...h6 17.Ngf3=) 17.Bg5 Ne4 (17...Qc7 18.Rac1=) 18.Be3+= Qc7 19.f3 (19.f4 Nc3 20.Qd3 Rd8+=) 19...Nc5 (19...Nc3!? 20.Qd2 Bd7+=) 20.f4+- b6 21.Rac1 Rf7 (21...Bb7 22.c4+=) 22.Nf3 (22.c4 Bb7+-) 22...h6 (22...Rd7 23.Rfd1+=) 23.g4 (23.Nd4 Bb7+-) 23...Ne4 (23...Ne7 24.gf5 Nf5 25.Bf5 Rf5 26.Qc2+=) 24.Be4 (24.gf5 ef5 25.Bb3 Be6+- (25...Nc3?? 26.Qd3 Bb7 27.Rc3+-)) 24...de4 (24...fe4 25.Nd4 Qd7 26.c4+=) 25.Nd2 Ne7 (25...Rb8 26.Nc4+-) 26.c4 Bb7 27.h3 (27.c5 bc5 28.Rc5 Qb8+-) 27...Ng6 (27...Rb8 28.c5+=) 28.c5 bc5 29.Rc5 Qe7 30.b6 (30.Nc4 Nh4 31.Kh1 fg4 32.hg4 Nf3+=) 30...Ba6 31.Nc4 Qf8 (31...Raf8 32.gf5 (worse 32.Ra5 Bc4 33.Qc4 Qh4-/+) 32...Rf5 33.Ra5 Nf4 34.Bf4 Bc4 35.Qc4 Rf4 36.Rf4 Rf4 37.Qe2=+) 32.gf5 (32.Qc2 fg4 33.Qe4 Nh4=) 32...Rf5+= 33.Rc6 (better 33.Rc7!?+=) 33...Nf4 34.Bf4 Rf4 35.Rf4 Qf4 36.Qe3 Qe3 (36...Qf5!? 37.Qg3 e3=+) 37.Ne3= Rb8 (37...Rf8 38.Re6 Rf3 39.Re8 Kh7 40.Ng2=) 38.Kf2 (38.Re6 Kf8+-) 38...Bc8 (38...Rf8 39.Kg2=) 39.Nc4+= Bd7?? (39...Bb7!? 40.Rd6 Rf8 41.Ke3 Rf3 42.Kd2 Ba6 43.Rd8 Kh7+=) 40.Rd6?? (better 40.Rc7 Bc8 41.Na5+-) 40...Ba4+- 41.Na5 Kf7 42.Ke3 g5 43.b7 Ke7 44.Ke4 h5 45.Kd4 g4 46.hg4 hg4 47.Kc5 g3 48.Rd3 1–0. Buecker,Stefan (2345) – Vavra,Pavel (2275), Bohemians, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

7.d3 Qb5 8.dc4 Qc6+=.

7.d3 Bc5!? 8.d4 Be7+=.

7.d3 Nh6 8.Bh6+- gh6 9.dc4 Bc5 10.Qe2 (10.cd5?! Bf2 11.Kd2 ed5=) 10...d4 (better 10...Nd7!?+-) 11.Qb2 (11.Nd4 Bd4 12.a3 Bc5-/+; 11.cd4? Bd4 12.c5 Qd8-+) 11...Nc6 12.Bd3 (better 12.Qd2!? dc3 13.Nc3+-) 12...dc3+- 13.Nc3 Bd4 14.Nd4 Qd4 (14...Ne5 15.Na4 Nd3 16.Kd2+-) 15.bc6+- Qd3 16.Rd1 Qc4 17.Nb5 Qe4 18.Kf1 0-0 19.c7 b6 (19...Qb4 20.Qb4 ab4 21.Nd6+-) 20.Nd6 Qc6 21.Rc1 Qd5 22.h4 (22.f4 f6 23.Ke1 fe5 24.fe5 Ba6+-) 22...Ra7 (22...f6 23.Kg1+- (23.Nc8?! Rac8 24.Qb6 Rf7+=)) 23.Qc3 (23.Qb6 Ra8+-) 23...f6 (23...Qa2 24.Rh3 Qd5+-) 24.Rh3 fe5 (24...Kh8 25.Kg1 Ra8 26.Qf3+-) 25.Rg3 (25.Nc8?! Rc8 26.Rg3 Kh8=) 25...Kh8 26.Nc8?? (better 26.Qc6 Qc6 27.Rc6+-) 26...Rc8= 27.Qe3 (27.Rd3!? Rac7 28.Rd5 Rc3 29.Rc3 Rc3 30.Re5 Rc1 31.Re1 Re1 32.Ke1=) 27...Rac7=+ 28.Rc7 Qd1 29.Qe1 Qe1 30.Ke1 Rc7 31.Rb3 Rc6 32.Kd2 Kg7 33.Ke2 (33.a3 Kf6-/+) 33...Kf6 34.Rf3 Ke7 35.Kd3 b5 36.Rg3 (36.Re3 Kd6-/+) 36...Kd6 37.Rg8 e4! 38.Ke4 (38.Kd2 Rc4 39.Rb8 Kc5-/+) 38...Rc4 (38...Rc2 39.Rd8 Kc7 40.Rh8 Rf2 41.Rh7 Kd6 42.Rh6 Ra2 43.g4-+) 39.Ke3-/+ Ra4 40.Rg7 (40.Rb8 Kc5 41.Rc8 Kd5 42.Rd8 Ke5-/+) 40...Ke5 (better 40...Ra3!? 41.Kd4 e5 42.Ke4 Ra2-+) 41.Rh7-/+ Ra3 42.Ke2 Ra2 43.Ke3 Ra3 44.Ke2 b4 45.Rh6 b3 46.Rh5 (better 46.Rh8-/+) 46...Kd4 47.Rb5 Ra2 48.Kf3 Kc4 49.Rb8 b2 50.Ke4 Ra4 51.Rb2 Kc3 52.Ke5 Kb2 53.f4 Rb4 54.g4 (54.f5 ef5 55.h5 a4-+) 54...a4 0–1. Seps,M (2245) – Radziewicz,I (2435), 37th Olympiad w, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6)

7.d4 Qb5 8.Be2 Qc6 9.0-0 b5 10.a3 b4 11.ab4 ab4 12.Ra8 Qa8 13.cb4 Bb4 14.Ne1 (14.Bd2 Bd2 15.Qd2 Ne7=+) 14...Bd7 15.Bb2 Ne7 16.Nc2 Ba4 17.Qc1 Bc2 18.Qc2 0-0 19.Nc3 (19.Nd2 Nbc6-/+) 19...Nbc6-+ 20.Qd2 (better 20.Rd1!?-+) 20...Nf5 21.Ra1 Qb7 22.Rb1 (22.Bd1 Nfd4 23.Qf4 f6 24.ef6 Rf6-+) 22...Nfd4 23.Bf1 (23.Bh5-+) 23...Rb8 24.Qc1 Bc3 25.Qc3 Qb3 26.Qd2 c3 (better 26...Qa2!? 27.Bc3 Qb1 28.Bd4 Nd4 29.Qd4-+) 27.Bc3 Qb1 (27...Nf3 28.gf3 Qb1 29.Qe2-+) 28.Bd4 Nd4 (28...Qe4 29.Bb2-+) 29.Qd4 h6 30.h3 (30.f4 Ra8 31.Qf2 Ra2-+) 30...Qc1 31.Qa7 (31.f4-+) 31...Rb1 32.Qa8 (32.Kh2 Qf1 33.Kg3 g5-+) 32...Kh7 33.Qa6 Qd1 (better 33...Qc4! 34.Kh2 Rf1-+) 34.g3 Kg6 35.Kg2 Qf1! 36.Qf1 Rf1 37.Kf1 Kf5 38.f4 (38.Ke2-+) 38...Ke4 39.Ke2 h5 40.h4 g6 41.Kf2 Kd3 42.Kf3 d4 43.g4 Kc2 44.f5 d3 45.gh5 (45.fg6 fg6 46.Kf4 d2 47.gh5 gh5-+) 45...gh5 (45...gf5 46.Kf4 d2 47.Kg5-+) 46.Kf4 (46.fe6 fe6 47.Kf4 d2-+) 46...d2 47.f6 d1Q (47...d1Q 48.Kg3 Qg1 49.Kh3 Qh1 50.Kg3 Kd2 51.Kf2 Qh4 52.Kg1 Qg4 53.Kh2 h4 54.Kh1 h3 55.Kh2 Qg2) 0–1. Helin,Mikael (2200) – Jensen,L (2125), Rilton Cup Stockholm SWE, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6)

7.Be2 Nd7 (7...Qb5 8.d3 cd3 9.Bd3=) 8.d3 cd3 9.Bd3 Nc5 10.Be2 Ne4 (10...a4 11.c4=) 11.Nd4 (11.Be3 Bc5 12.Nd4 Qc7+=) 11...Bc5 (11...Qc7 12.Nf3 Bc5= (worse 12...Nc3 13.Qc2 d4 14.Bd2+=)) 12.Be3+= f6 13.f3 (13.Bd3!?+=) 13...fe5= 14.fe4 ed4 15.cd4 Bb4 16.Nd2 Nf6 17.0-0 Bd2 (better 17...Bc3!?=+) 18.Qd2+= (18.Bd2? Qd4 19.Kh1 Ne4-+) 18...Ne4 19.Qd1 Bd7 20.Rc1 Rf8 (20...a4 21.Bd3 Nf6 22.Rc5=) 21.Bf4 Rc8 (worse 21...Bb5 22.Qb3 Qd4 23.Be3 Rf1 24.Rf1+-) 22.Rc8 Bc8 23.Qd3 (23.Be5!?+=) 23...Bd7 24.a4 e5 (24...Rf4!? 25.Rf4 e5=) 25.Be5+= Rf1 26.Bf1 Qg6 27.Qe3 Kf7 28.Bd3 Bf5 (28...Qg5 29.Qg5 Ng5 30.Bc2+-) 29.Qf4 (29.Qc1 Qe6+-) 29...Qg4 (29...Kg8 30.Bc7+=) 30.Qf1 (30.Qc1+-) 30...Ke6? (30...Kg8!?+=) 31.h3 (31.Qc1 Kf7+-) 31...Qg6 (better 31...Qg5 32.Kh2 Nd2 33.Bf5 Qf5+=) 32.Bf4?? (better 32.Qc1!? Qf7 33.Qc8 Qd7 34.Qg8 Qf7 35.Qb8+- (worse 35.Qg7 Qg7 36.Bg7 Nc3=+)) 32...Qf6 (32...Bh3 33.Bc7=) 33.Be5 Qg5 (better 33...Qg6=) 34.Qf4?? (better 34.Kh2+-) 34...Qf4-/+ 35.Bf4 Nc3 36.Bf1 Na4 37.Be5 g6 38.Bf4 (38.Bc7 b6-/+) 38...Nb2-+ 39.Bc1 Na4 40.Bd2 (40.Bf4 h5 41.Bc7-+) 40...b6-+ 41.Kf2 Nb2 42.Ke3 Nd1 (42...g5 43.Kf3-+) 43.Ke2-/+ Nb2 44.Ke3 Kd6 (44...g5 45.g3-+) 45.Bc1 (45.Be1 Nc4 46.Bc4 dc4 47.Bg3 Kd5-+) 45...Nc4-+ 46.Bc4 dc4 47.g4 Bd7 48.Ke4 Bb5 49.d5 c3 50.Ba3 (50.Kd4 c2-+) 50...Kd7 51.h4 (51.Kd4 Bf1 52.Kc3 g5-+ (52...Bh3?! 53.g5-+)) 51...Bf1 52.Ke3 (52.Kd4 b5 53.Kc3 b4 54.Bb4 ab4 55.Kb3 h6-+) 52...b5 53.Bc5 (53.Bc1-+) 53...b4 54.Bb6 (54.Bd4 a4 55.Kf2 a3 56.Kf1 a2 57.Bc3 bc3-+) 54...b3 55.Ba5 b2 0–1. Schulz,Hans Juergen (2080) – Liepold,Stefan (2230), Bayern–ch Bank Hofmann 2nd, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6)

7.d3 cd3

8.Bd3 Bc5 9.0-0 Nd7 10.Qa4 f5 11.Qh4 Nf8 (11...Ne7 12.Qh5 Ng6 13.Bf4=) 12.Nbd2 Ne7 (12...a4 13.c4+=) 13.Nb3+- Nfg6 14.Qa4 Bd7 15.c4 dc4 16.Bc4 Rc8 17.Bd2 (17.Bb2 Nd5 18.Nfd2 Bb4+=) 17...Bb4+= 18.Be3 Qd8 (18...Qc7!? 19.Rfc1 Ne5 20.Ne5 Qe5+=) 19.Rac1+- Nd5 20.Bd5 ed5 21.Rc8 (21.a3 Rc1 22.Rc1 Be7+-) 21...Bc8 22.a3 Be7 (22...Bc3 23.Rc1 f4 24.Bc5+-) 23.b6+- Bd7 24.Qa5 f4 25.Bc5 0-0 26.Nbd4 Re8 27.e6 Bc8 28.Re1 (28.Be7 Re7 29.Re1 Re8+-) 28...Bf6 29.Qb4 Bd4 (29...Kh8 30.Bd6+-) 30.Nd4 (30.Bd4?! Be6 31.h3 Qe7+=; 30.Qd4?! Be6 31.Bb4 Qd7+=) 30...Qg5 31.Qb5 (31.Qb5 Qd8 32.Bd6+-) 1–0. Xu Yang – Kupper,Patrick (2295), Wch U26 Sofia, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6 7.d3 cd3)

8.Bd3 Bc5 9.0-0 Ne7 10.a4 Nd7 11.Nbd2 Ng6 12.Nb3 (better 12.Bg6!? hg6 13.Ba3=) 12...Nge5 13.Ne5 Ne5 14.Nc5 Qc5 15.Ba3 (15.Be3 Qc3 16.Be2 Qb4=+) 15...Qc3-/+ 16.Be2 Nc4 (16...Ng6 17.Re1-/+) 17.Bc4 Qc4 18.Rc1 Qf4 19.g3 Qb8 (better 19...Qg5!?=+) 20.Re1 h6 (20...f6!? 21.Qd5 Kf7+-) 21.Qd5+- b6?? (better 21...Bd7+-) 22.Qd4 (better 22.Rcd1!? Qc7 23.Qa8 Qb7 24.Qb7 Bb7+-) 22...f6 23.Bd6 Qb7 24.Rc7 Qf3 (24...Qc7 25.Bc7 Kf7 26.Qe4+-) 25.Re3 (25.Qc4 Kd8 26.Rg7 Qg2 27.Kg2 Ra7 28.Bc7 Ke8 29.Re6 Kf8 30.Rf6 Kg7 31.Qf7) 25...Qf5 (25...Qh5 26.Rg7 Qf7 27.Rf7 Kf7 28.Rf3+-) 26.Re7 (26.Re7 Kf8 27.Ra7 Kg8 28.Ra8+-) 1–0. Dovzik,Juri (2400) – Malar,Pavol, Hlohovec op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6 7.d3 cd3)

8.Bd3 Nd7 9.0-0 Ne7 10.Re1 Ng6 11.h4 (11.Be3 Qc7 12.Bd4 Bc5+=) 11...Bc5 12.Qe2 a4 13.h5 (13.Be3 Ra5=) 13...Ne7 (13...Nge5 14.Ne5 Ne5 15.Qe5 Bf2 16.Kh1 A) 16...Be1? 17.Qg7 (17.Qe1?! Qc7=) 17...Qd8 18.Bg5+-; B) 16...f6=+) 14.h6 g6 15.Na3 Nf5 (15...f6 16.ef6 Nf6=) 16.g4 (better 16.Bf5!? gf5 17.c4+=) 16...Nh6=+ 17.Bh6 Ba3 18.Ng5 (18.g5 Nc5=+) 18...Be7 19.Qf3 (19.c4 Nc5-/+) 19...Bg5 20.Bg5 h5 21.Kg2 (21.Rac1 Qc5-/+) 21...hg4 (21...Qc7 22.Rac1-/+) 22.Qf4 (22.Qg4!? Rh5 23.Bf4-/+) 22...Qc7 23.Rh1 (23.Qb4 Qc5-+ (23...Ne5 24.Re5 b6 25.Qf4+-)) 23...Rf8 (23...Rh5 24.Be2 Qc3 25.Bg4 Rh1 26.Rh1 Qe5 27.Rh7-+) 24.Rae1 (better 24.Qb4!? Nc5 25.b6 Qe5 26.Bh6-/+) 24...Qc3-+ 25.Rh7 (better 25.Re3 d4 26.Rg3-+) 25...Qe1=+ (25...Qd3 26.Qb4 Nc5 27.Qc5 Qh3 28.Kg1 Qh2 29.Kh2 g3 30.fg3 f6 31.Qe7) 26.Bg6 fg6 27.Re7 Kd8 28.Rd7 Kd7 29.Qf8 Qe4 30.Kg1 Qe1 31.Kg2 ½–½. Smolka,M (2130) – Jaroch,K (2235), 1st Irena Warakomska Mem, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

8.Bd3 Nd7 9.a4 Ne7 10.0-0 Ng6 11.Qe2 Be7 12.Ra2 f6 (12...Qc7 13.Re1=) 13.ef6 Bf6 (13...gf6 14.c4 d4 15.Re1+=) 14.Bg6+- hg6 15.Qd3 Kf7 16.Re2 (16.Ng5 Kg8 17.Qg6 Bg5 18.Qg5 Qc7+-) 16...Qd6 17.Rfe1 Nc5 18.Qd1 Bd7 19.Ne5 Be5 20.Re5 Kg8 (20...Rh4!?+-) 21.Bf4 Qf8 22.Bg5 Rc8 23.h4 Be8 24.R1e3 (24.Qd4 Bf7+-) 24...Bf7+= 25.Rf3 (25.Re2 Ne4+=) 25...Qe8 (25...Qd6 26.Re2=) 26.Nd2+= Nd7 27.Re1 Nb6 28.Rd3 Qf8 29.Qg4 Nc4 30.Nf3 Nb2 31.Rd4 Nc4 (31...Rc3 32.Ne5+-) 32.Bf4 (32.Re6!? Re8 33.Re8 Qe8 34.Rd1+-) 32...Rh5+- 33.Ng5 Rd8 (33...Re8 34.Qg3+- (34.Ne6? Qe7-+)) 34.Be5 (34.Ne6 Qe8 35.Re2 Be6 36.Re6 Qf7+-) 34...Qa3 (34...Qe7 35.Rf4 (35.Nf7?! Qf7 36.Rc4 dc4=) 35...Rf8 36.Qg3+- (36.Nf7?! Rf7 37.Rc4 dc4=)) 35.Qf3 (35.Rf4 Rd7 36.Rf7 (36.Nf7?! Rf7 37.Rc4 dc4+=) 36...Rf7 37.Qe6 Ne5 38.Re5 Rg5 39.hg5 Qc3 40.Qd5 Qc1 41.Kh2 Qf4 42.Kh3 Qf2 43.Qc4=) 35...Rg5? (better 35...Qe7+-) 36.hg5+- Qa4?? (36...Ne5 37.Re5 Rc8 38.Re3 Qc1 39.Kh2+-) 37.Rf4 (better 37.Bg7 Nb2 38.Ra4 Rf8 39.Rh4 Kg7 40.Qf6 Kg8 41.Rh8) 37...Rd7? (37...Ne5 38.Re5 Qa1 39.Kh2 Qa3 40.Rf7 Qd6+-) 38.Qh3 (38.Qh3 Qc2 39.Rh4+-) 1–0. Dovzik,Juri (2375) – Portisch,Ferenc (2385), Nagykanizsa op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6)

8.Bd3 Nd7 9.a4 f6 10.Bf4 fe5 11.Ne5 Ngf6 12.Qe2 Bc5 13.0-0 0-0 14.Bg3 (14.c4 Ne4 15.Nd7 Bd7 16.Be4 Rf4 17.cd5 Raf8=+) 14...Ne5 15.Be5 Bd7 (15...Nd7 16.Qh5 h6 17.Bg7 Rf2 18.Bd4 Rf1 19.Kf1 Bd4 20.cd4 Qd4 21.Qg6 Qg7 22.Qe6 Qf7 23.Qf7 Kf7 24.Nc3=) 16.Nd2+= Rac8 17.Nb3 Bd6 18.Rac1 Be5 19.Qe5 Ng4 20.Qh5 Nf6 21.Qe5 Ng4 22.Qg3 Nh6 (22...e5 23.h3 e4 24.hg4 ed3 25.Qd3+=) 23.Nd4 (23.c4!?+-) 23...Qc7 24.f4 Rf6 25.Rf3 Rcf8 26.Rcf1 Be8 27.Re1 Exerts pressure on the backward pawn 27...Bd7 28.Re5 Kh8 29.Bc2 R8f7 30.Qg5 Qc5 31.Qh4 Qd6 32.Qg5 Qf8 (32...Qc5!?=) 33.g3+= Re7 34.Qh4 Re8 35.Rfe3 g6 (35...Rc8 36.Rd3+=) 36.Re1 Kg7 37.Qh3 The pressure on the backward pawn e6 grows 37...Qc5 38.R5e3 Bc8 39.Qh4 Nf7 40.Kg2 Qd6 (40...Nd6 41.Qg5+=) 41.Nf3 Qc5 42.h3 Qc7 43.Nh2 Nh6 44.Nf3 Nf7 45.R1e2 Rd8 46.Nd4 Re8 47.Bb3 Qd6 48.Nf3 Rf5 49.Ne5 Ne5 50.fe5 Qc7 51.Qd4 Ref8 52.Rd3 (52.c4 Qf7 53.Rd3 dc4 54.Bc4 b6=) 52...Qf7 (52...b6 53.Kg1=+) 53.Rdd2+= Qc7 54.Rc2 (54.c4 Rf3 55.Re3 Re3 56.Qe3 dc4+=) 54...b6 55.Rcd2 (55.c4 dc4 56.Qc4 Qf7+=) 55...Bb7 (55...Rf3 56.Rc2=) 56.Bc2= Rf3 The backward pawn on c3 becomes a target 57.Rd3 (57.Bd3 Qe7 58.h4 Qf7=) 57...Qf7 58.Rdd2 (58.Qb6 d4 59.g4 Rf1 60.Qb7 Qb7 61.Kh2 Rh1 62.Kg3 Rg1 63.Rg2 Rg2 64.Kh4 Qe7 65.g5 Qg5) 58...Rc3 59.Rf2 (59.Qc3 d4 Double attack (59...d4 Decoy; 59...d4 Passed pawn)) 59...Rf3 (59...Qc7!? 60.Rf8 Kf8=+) 60.Rf3= (60.Qb6 d4 61.Qb7 Qb7 62.Rf3 Qf3 63.Kh2 Qe3 64.Rg2 Rf1 65.Bd1 Qe1 66.Rg1 Rg1 67.Bf3 Qg3) 60...Qf3 61.Kh2 h5 62.h4 (62.Qb6?? d4 63.Qb7 Qb7-+) 62...Rf7 63.Bd3 (63.Qb6?? d4 64.Qb7 Rb7-+) 63...Kh6 (63...g5 64.hg5 Qg4 A) 65.Qb6 A1) 65...Qg5?! 66.Rf2 (66.Qa5? Qe3 67.Rb2 Qd3-+) 66...Rf2 67.Qf2=; A2) 65...d4 66.Qb7 Rb7-+; B) 65.Qg4 hg4 66.Be2 Rf2 67.Kg1=) 64.Rc2 (64.Qb6?? d4 65.Qb7 Rb7-+) 64...Kg7 65.Rd2 Kh6 (65...g5 66.hg5 (66.Qb6 d4 67.Qb7 Rb7-+) 66...Qg4 A) 67.Qb6 d4 (67...Qg5?! 68.Rf2 Rf2 69.Qf2=) 68.Bf5 Qf3 (68...ef5?! 69.Qh6 Kg8 70.Qg6 Rg7 71.Qe6 Kf8 72.Qd6 Re7 73.Qf6 Rf7 74.Qh8 Ke7 75.Rc2 Qg5 76.Qb8=) 69.Qb7 Rb7-+; B) 67.Qg4 hg4 68.Be2 Rf2 69.Kg1=) 66.Rc2= (66.Qb6?? d4 67.Qb7 Rb7-+) 66...Kh7 67.Rd2 Kg7 68.Rc2 (68.Qb6?? d4 69.Qb7 Rb7-+) ½–½. Izrailev,A (2340) – Nedochetov,M (2250), RUS–ch sf Tula, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

8.Bd3 Nd7 9.Qe2 Nc5 10.Bc2 Bd7 11.Nd4 f5 12.g4 (12.Nd2 Ne4 13.Ne4 fe4=) 12...Ne4 (12...Ne7 13.gf5 Nf5 14.a4=) 13.gf5 ef5 14.Be3 Bc5 (14...Rc8!?+=) 15.f3 Nc3 (15...Ng5 16.Qg2 Bd4 17.cd4 Nf7+=) 16.Nc3+- Bd4 17.Na4 (17.Na4 Qb5 18.Qb5 Bb5 19.Bd4+-; 17.Nd5?! Qc5 18.Bd4 Qd5+=) 1–0. Lerch,Patrice (2255) – Peter,Sebastien (2165), FRA–chB Toulouse, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Qb6)

6.b5 Nd7

7.a4 Qc7=+ 8.Qe2 (8.d4 cd3 9.Bf4 Ngf6=+) 8...Nc5 (8...Ne7!?-/+) 9.Qd1=+ f6 10.d4 cd3 11.Bf4 g5 12.Bg3 g4 13.ef6 Bd6 14.f7 Kf7 15.Ng5 Ke8 16.Qg4 (16.Bd3? Bg3 17.hg3 Qe5 18.Be2 Qg5-+) 16...Nf6 17.Qh4 Bg3 (17...e5 18.Nf3 Rf8 19.Ra2-/+) 18.Qg3 (18.hg3!? e5 19.Ra2=+) 18...Qg3-/+ 19.hg3 (19.fg3? e5-+) 19...e5 20.Nf3 (20.Nd2 e4-/+) 20...e4 21.Nd4 Bd7 (21...Rf8 22.Nd2-/+) 22.Kd2 (22.Nd2 Rf8-/+) 22...Ng4 23.Rh5 (23.Ke1 Ke7-/+) 23...Rf8 (23...Nf2!? 24.Ke1 Ng4 25.Rd5-+) 24.f3-/+ Nf6 25.Re5 Kf7 26.Na3 Rfe8 27.Re8 Re8 (27...Ne8?! 28.c4 Nd6 29.cd5-/+; 27...Ke8?! 28.c4 Rd8 29.cd5 Nd5 30.fe4-/+) 28.Re1 Na4 29.c4 Nc5 30.cd5 Nd5 (30...Re5 31.d6-+) 31.fe4 Ne4 32.Kd3 Nb4 33.Ke3 Ng3 34.Kf2?? (better 34.Kd2-+) 34...Nh1 (34...Nh1 35.Kf3 Re1-+) 0–1. Gauclain,L (1830) – Bourges,J (2070), 32nd Avoine Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7)

7.d3 Qc7 8.Bf4 (8.dc4 Ne5 9.cd5 Nf3 10.Qf3 Qe5 11.Be2 Qd5+=) 8...Ne7 9.dc4 Ng6 Will e5 fall? (9...dc4 10.Qe2+=) 10.Bg3+= Nde5 (better 10...dc4!? 11.Nbd2 h5+= (11...Nde5? 12.Ne5 Ne5 13.Nc4+-; 11...Nge5? 12.Ne5 Ne5 13.Nc4+-)) 11.Ne5+- Ne5 12.cd5 (12.b6 Qb8 13.Qh5+- (13.cd5?! Bd6+-)) 12...Bd6+= 13.Be2 0-0 14.0-0 Re8 15.Bf3 (15.Re1!?=) 15...Nf3=+ 16.Qf3 Bg3 17.Qg3 (17.hg3 ed5 18.Qd5 Be6=+) 17...Qg3=+ 18.fg3 ed5 19.Nd2 Bg4 20.Rf4 Be2 21.b6 Rac8 22.Rd4 Rc3 23.Rd5 Rd3 (23...Rc2 24.Re1 Kf8 25.a4=+) 24.Rd3 Bd3 25.Nb3 Re2? (better 25...Be4!?+=) 26.Rd1+- (26.Na5?! Be4 27.Rc1 Rg2 28.Kf1 h5 29.Rc8 Kh7+=) 26...Bb5 27.Na5 g6 28.Nb7 Ra2 (28...Bc6 29.Na5 Rg2 30.Kf1+-) 29.Nd8 (29.Na5 Ba6 30.b7 Bb7 31.Nb7 Kf8+-) 29...Rb2 (29...Ba6 30.b7 Rb2 31.Rd7+-) 30.Ra1 Bd3 31.Ra8 (31.b7 Be4 32.Ra8 Rb1 33.Kf2 Rb2 34.Ke3 Bb7 35.Nb7 Kg7+-) 31...Be4 (31...Rg2 32.Kg2 Be4 33.Kf2 Ba8 34.b7 Bb7 35.Nb7+-) 32.b7 Bb7 33.Nb7 Kg7 34.Nd6 Rb6 35.Ne4 h5 (35...f5 36.Nc5+-) 36.Ra3 (36.Ra7 Kf8+-) 36...Rb4 37.Re3 Rb2 38.Kf1 Ra2 39.Re2 Ra1 40.Kf2 Ra3 41.Nd2 Kf6 42.Nc4 Ra4 43.Ne3 Rd4 44.h3 Kg7 45.g4 hg4 46.Ng4 Rd7 47.Kf3 Ra7 48.Ne5 Ra3 49.Re3 Ra4 50.Rb3 Ra5 51.Nd3 Ra7 52.Kg4 Ra4 53.Rb4 Ra2 54.g3 Ra3 55.Rd4 Ra7 56.h4 Rb7 57.Ne5 Ra7 (57...f6 58.Nc4+-) 58.Rd7 Ra4 (58...Rd7 59.Nd7 Kh6 60.Ne5 f5 61.Kf4 g5 62.hg5 Kh5 63.g6+-) 59.Kh3 (better 59.Kg5!? Ra5 60.Rf7 Kg8+-) 59...Kf6 60.Nf7 1–0. Husson,C (2035) – Demanghon,J (2210), 8th Open La Fere FRA, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7)

7.d4 cd3 (=7.d3 cd3).

7.d4 Ne7 8.a4 f6 9.Qe2 Ng6 10.ef6 Nf6 11.Bg5 Be7 12.Nbd2 0-0 13.Ne5 Ne5 14.de5 (14.Qe5 Ng4 15.Be7 Qe7-+) 14...Nd7 15.Be7 Qe7 16.Qe3 Nc5 17.Be2 Bd7 18.0-0 Be8 19.Nf3 Bh5 20.Nd4 Be2 21.Ne2 Rac8 22.Nd4 g5 23.f3 Rf7 24.Rfb1 Nb3 25.Nb3 cb3 26.Rb3 Qc5 27.Qc5 Rc5 28.b6 Rf4 29.Kf2 Kf7 30.Ke3 Ke7 31.g3 Rfc4 (31...Rf5 32.Rd1=+) 32.Kd3 Kd7 33.Raa3 Ke7 (33...Rc8 34.Ke3=) 34.Rb1 Kf7 35.Rb2 h5 36.h3 h4 37.g4 Ke7 38.Rb5 Kd7 39.Rab3 Kc6 40.Rc5 Rc5 41.Rb5 Rc4?? (41...Rb5 42.ab5 Kb5=+ (42...Kb6?! 43.f4 gf4 44.g5-/+)) 42.Ra5+- Rf4 43.Ke3 Rc4 44.Kd3 Rf4 45.Ke3 Rc4 46.Kd3 (better 46.Kd2!?+-) 46…Rf4= ½–½. Lopez Varela,Pablo (2100) – Alvarez Fernandez,E (2320), 83rd ch–ESP (5), 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7)

7.d3 cd3

8.Qd3 f6-/+.

8.Bd3 Bc5 9.0-0 Qc7 10.Bf4 Ne7 11.Bg3 h6 (11...Ng6 12.Qe2=) 12.Nbd2+= b6 13.Nb3 (13.c4 Bb7+=) 13...Bb7 (13...Ba3 14.Qc2=) 14.Nbd4 0-0-0 (14...0-0 15.Rc1=) 15.a4 (15.Qa4 g5 16.Rfe1 Rhg8+=) 15...Kb8 16.h4 (16.Rc1 Ba3 17.Rc2 Nc5+=) 16...g6= 17.Qd2 Ka8 (17...Nf5 18.Bf4=) 18.Rfe1 Rdg8 19.Bf4 g5 (19...Nf5!?+=) 20.hg5+- hg5 (20...h5 21.Nh4+-) 21.Ng5 (21.Bg5?! Ng6 22.Bf4 Rh5=) 21...Bd4 (21...Rf8 22.Nge6! fe6 23.Ne6+=) 22.cd4+- Rg7 23.Re3 Qd8 24.Rg3 Qg8 25.Rc1 Ng6 26.Bg6 Rg6 27.Rc7 Nf8 (better 27...Qe8+-) 28.Qc2 Rgh6 29.Nh3 Rh3 30.gh3 Ng6 31.Bg5 (31.Rb7 Kb7 32.Qc6 Ka7 33.Qc7 Ka8 34.Qb6 Qd8 35.Qa6 Kb8+-) 31...Qf8 (31...Qe8 32.Bf6 Rg8 33.Kf1+-) 32.Rf3 (32.Bf6!? Rg8 33.Rd7 Qc8 34.Qc8 Rc8 35.Rf7 Nf4+-) 32...Qb4 (32...f5 33.ef6 Nh4 34.Bh4 Rh4+-) 33.Rb7! (33.Rb7 Qc4 34.Qc4 dc4 35.Rff7+-) 1–0. Felgaer,R (2585) – Albarran,G (2275), ch–Torre Blanca, 2005. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3)

8.Bd3 Bc5 9.0-0 Ne7 10.Re1 Ng6 11.Be3 Qc7 e5 seems the pivot of the position 12.Bd4 Nb6 13.a4 Nf4 14.Bf1 g5 (better 14...0-0!?+=) 15.Ng5 Bd4 (15...Be7 16.Nf3+/-) 16.Qd4+- Ng6 17.Nd2 h6 18.Ngf3 Bd7 (18...Nd7 19.Rac1+-) 19.Rac1 0-0 (19...Rc8+-) 20.c4 dc4 21.Nc4 Nc4 (21...Nd5 22.Nd6 Qb8 23.Bc4+-) 22.Rc4 (22.Qc4?! Qc4 23.Rc4 Rfc8+-) 22...Qd8 23.Rd1 (23.Rd1 Bb5 24.ab5 Qd4 25.Rcd4+- (25.Nd4?! Ne5 26.Rc7 b6+-)) 1-0. Salmons,Calum (1895) - Blake,J Morgan (1975), 22nd 4NCL Congress, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3)

8.Bd3 Nc5 9.Bc2 Bd7 10.a4 Ne7 11.h4 (11.0-0 Qc7+=) 11...b6 12.h5 Rc8 13.h6 Ne4 14.Be4 de4 15.Nd4 (15.Ng5 Rc5 16.Ne4 Re5 17.Qd4+=) 15...Nf5 (15...Qc7 16.Qh5=) 16.Ba3 (better 16.Qg4!? gh6 17.Qe4+/-) 16...Nh6=+ 17.Qc2 (17.Bf8!? Rf8 18.Rh5=+) 17...Ba3-/+ 18.Na3 f5 19.Qb3 (better 19.ef6 Qf6 20.Qe4 Rc3 21.Ne2=+) 19...Qe7 (better 19...Qc7 20.Nc6 A) 20...Bc6?! 21.Qe6 Kf8 22.Rh6 (worse 22.bc6 Qc6 23.Qc6 Rc6-/+) 22...gh6 23.Qf5 Kg7 24.Qf6 Kg8 25.Qe6 (worse 25.bc6 Qc6 26.Qc6 Rc6-/+) 25...Kg7 26.Qf6 Kg8 27.Qe6 (worse 27.bc6 Qc6 28.Qc6 Rc6-/+) 27...Kg7 28.Qf6=; B) 20...Kf8-/+) 20.Nc4+= 0-0 (better 20...Rb8!?+=) 21.Nb6+- Rce8 22.Nc4 (22.Qa3 Qd8 23.Qc5 Rf7+-) 22...Qc5 (22...Nf7 23.Rd1+/-) 23.Nd6 Re7 (better 23...Rb8 24.Ne6 Be6 25.Qe6 Nf7+/-) 24.0-0?? (better 24.Rh6 gh6 25.N6f5+-) 24...Qe5= 25.Nc4 Qf4 26.b6?? (better 26.g3 Qg5 27.Na5=) 26...Ng4 27.g3 (27.Rfd1 Qf2 28.Kh1 Rf6 29.Nf5 Rf5 30.Rd5 Qh4 31.Kg1 Qh2) 27…Qh6 (27...Qh6 28.Nf3 ef3 29.Rfb1 Qh2 30.Kf1 Qf2) 0-1. Grabinsky,V (2215) - Pesotskiy,Mikhail (2210), Titled Tuesday, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3)

8.Bd3 Nc5 9.Bc2 Ne7 10.0-0 Nf5 (10...Qc7 11.Re1+=) 11.Nd4 g6 12.Nd2 Bd7 13.a4 Rc8 14.N2f3 Be7 15.Re1 h5 (15...0-0 16.Nf5 gf5 17.Bh6+=) 16.g3 (16.Rb1 h4+-) 16...Kf8 17.h4 Ne4 (17...Kg7!?+=) 18.Be4+- de4 19.Re4 Qc7 20.Bf4 Kg7 21.Nf5 gf5 22.Rd4 Rhd8 23.Ng5 Kg6 24.Nf7 Kf7 25.Qh5 Kg8 26.Qg6 Kh8 27.Qh6 (better 27.Bg5 Be8 28.Qh6 Kg8 29.Qe6 Bf7 30.Qe7 Qe7 31.Be7+- (31.Rd8?! Qd8 32.Bd8 Rd8+=)) 27...Kg8 28.Qg6 Kh8 29.Bg5 Re8 (29...Be8 30.Qh6 Kg8 31.Qe6 Bf7 32.Qe7 Qe7 33.Be7+- (33.Rd8?! Qd8 34.Bd8 Rd8+=)) 30.Bf6 Bf6 31.ef6 (31.ef6 Bb5 32.f7 Qf7 33.Qf7+-) 1–0. Dovzik,Juri (2360) – Feher,Gyula (2405), Kobanya op, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

8.Bd3 g6 9.0-0 Bg7 10.Re1 Nc5 11.a4 Ne7 12.Ba3 Qc7 13.Bc2 b6 14.Qd4 0-0 15.Nbd2 Bb7 16.Nb3 (16.Bc5 bc5 17.Qe3 Rab8+=) 16...Nf5= 17.Qd1 (better 17.Qd2=) 17...Ne4 (better 17...Nb3!? 18.Bb3 Rfd8=) 18.Bf8+- Bf8 19.Be4 de4 20.Nfd4 Rd8 21.Qc1 Qe5 22.Nf5 ef5 23.Qe3 Bd6 24.g3 Bd5 25.c4 (worse 25.Qb6 Bc7 26.Qc5 Bb3 27.Qe5 Be5-+) 25...Bc4 26.Rad1 (26.Nd2 Bd3 27.Qb6 Bc7+=) 26...Re8 (26...Qf6!?=+) 27.Qb6 (27.Nd2 Bd3 28.Nf3 Qe7 29.Rd3 ed3 30.Qd3 Qe1 31.Ne1 Re1 32.Kg2 Bc5+=) 27...Bb4 (better 27...Bb3!? 28.Qd6 Bd1 29.Qe5 Re5 30.Rd1 Kf8=) 28.Na5+- Bd5 (28...Bd3 29.Nc6 Qe6 30.Re3+- (30.Nb4 Qb6 31.Nd3 Qd4-/+)) 29.Nc6 (better 29.Re2+-) 29...Bc6+= 30.Qc6 Be1 31.Re1 Re6 32.Qc4 f4 33.a5 e3 34.fe3 fe3 (better 34...fg3 35.h3 Qf6 36.Qc8 Kg7=) 35.h4?? (35.Qe2 Qc3 36.a6 Qa5+-) 35...Qf6 (better 35...Qg3 36.Kh1 Qe1 37.Kh2 Qd2 38.Kh3 e2 39.h5 Qe3 40.Kg2 e1N 41.Kh2 Qf2 42.Kh3 Re3 43.Kg4 Qg3) 36.Rf1 (36.Qe2 Qc3 37.a6 Qd4+=) 36...Qb2 (36...Qd8 37.Qf4 Qe7 38.Qb8 Kg7 39.Qf4=) 37.Qc8 (better 37.Qc7!? f5 38.Qb8 Kg7 39.Qa7 Kg8 40.Qa8 Kf7 41.Qb7 Re7 42.Qd5 Kg7 43.Qd6=) 37...Kg7=+ (37...Kg7 38.Qc7 Rf6 39.Rf6 Qf6-/+) 0–1. Gallegos,Paul – Strugatsky,Vladimir, Palo Alto, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

8.Bd3 g6 9.0-0 Bg7 10.Re1 Ne7 11.a4 (11.Ba3 b6+=) 11...0-0 (11...Qc7 12.Qe2+=) 12.Ra2 (12.Ba3 b6+=) 12...b6 13.Rae2 Bb7 14.Bg5 h6 15.Bc1 (15.Bh4 Rc8=) 15...Rc8 16.Ba3 Nc5 17.Bc2 (17.Bc5 bc5 18.Rb2 Qb6=) 17...Qc7 18.Nd4 Rfd8 19.f3 (19.Nd2 Nf5 20.Bc5 bc5 21.Nf5 gf5+=) 19...Rd7 (19...Nf5 20.Bc5 bc5 21.Nf5 gf5 22.Qd3=) 20.Qd2 (20.f4 Nf5=) 20...Qd8 21.g4 Rcc7 (21...Kh7 22.Rd1=) 22.Qf4 (22.f4 Ne4 23.Qe3 Nc8=) 22...Qe8 (22...Nc8 23.Qg3=) 23.Qg3 (23.g5 hg5 24.Qg5 Rd8=) 23...Kh8 (23...Rd8 24.g5=) 24.Bc1 Ng8 (24...Rd8 25.g5=) 25.Qh3 Qe7 (25...Qc8 26.g5 h5 27.Rd1=) 26.Re3 (26.g5 h5+=) 26...Rd8 (26...Kh7 27.f4+=) 27.Ne2 (27.f4 Qe8=) 27...Rdc8 (27...Rcc8 28.f4=) 28.Ng3 (28.f4 Kh7=) 28...d4 (28...Rd7 29.Ne2=) 29.cd4= Nd7 (29...Nd3! 30.Rd3 Rc2+=) 30.Ba3+- Qd8 (30...Qg5 31.Be4 Bd5 32.f4+-) 31.Be4 Bf8 (31...f5 32.ef6! Ndf6 33.Bb7 (worse 33.Bg6 Qd4 34.Kf1 Qa4=+) 33...Rb7 34.Ne2+-) 32.Bb7 (32.Bd6!? Be4 33.Bc7 Rc7 34.fe4 Rc4+-) 32...Rb7 33.Ne4 Rbc7 (33...Rc2 34.Bf8 Qf8 35.Na3+-) 34.Bf8 Qf8 35.Nd6 Rd8 36.Qh4 (36.g5 Kg7+-) 36...Ndf6 37.Rc3 (37.Nc3 g5 38.Qf2 Ne8 39.Ne8 Re8+-) 37...Rcd7 38.Rc6 (38.Na3 Nd5 39.Rc6 Nge7+-) 38...Nd5 (38...Ne8 39.Nc8+-) 39.Nd2 (39.Nc3 g5 40.Qg3 Nge7 41.Nd5 Nd5+-) 39...Nge7 40.N2e4 (40.Rc4+-) 40...Qg7?? (better 40...Nc6 41.bc6 Rc7=) 41.Nf6+- Nc6 42.bc6?? (better 42.Nd7 Nce7 43.Nf6+-) 42...Rd6=+ 43.ed6 Qf6 (worse 43...Nf6 44.d7 Rg8 45.g5 Nd7 46.cd7+=) 44.g5 (44.Qh6 Kg8 45.c7 Rc8=+) 44...Qg5 (44...Qf3!? 45.c7 Ra8=+) 45.Qg5= hg5 46.c7 Nc7 47.dc7 Rc8 48.Rc1 Kg7 (48...Kg8 49.Rc6=+) 49.Kf2 Kf8 (49...Kf6 50.Rc6 Ke7 51.Ke3=+) 50.Ke3 Ke7 51.Rc6 Kd7 52.Rb6 Rc7 53.Rb5 (53.Kd3=+) 53...Ke7 (53...Rc3!? 54.Kf2 Rc4 55.Ra5 Rd4 56.Ra7 Kd6 57.Rf7 Ra4=+) 54.Rg5= Rc3 55.Kf2 Rc4 (55...f5 56.Rg6 Rc4 57.Ke3=) 56.Ra5 Rd4 57.Kg3 (57.Ra7 Kf6=) 57...Kf6 58.h4 Rb4 (58...e5 59.Ra6 Kf5 60.a5=) 59.Ra7 (59.Ra6 Rb1=) 59...Rc4 (59...e5 60.a5=) 60.Kh3 (60.a5 e5=) 60...Rb4 ½–½. Voisembert,Alain (2115) – Couche,Didier (2120), Nationale I, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

8.Bd3 Qc7

9.0-0 Ne5=+ 10.Ne5 Qe5 11.Re1 Qc7 12.Qb3 Nf6 13.b6 Qd8 14.Bf4 Bd6 15.Bb5 (15.Bd6 Qd6 16.Nd2 0-0-/+) 15...Kf8 16.Bd6 Qd6 17.c4 Bd7 18.Nc3 (18.Bd7 Nd7 19.cd5 Qd5 20.Qd5 ed5=+) 18...Bb5 19.Nb5 Qb6 20.Rab1 Ne4 21.Qa3 (21.Re2 dc4 22.Qa3 Nc5-/+) 21...Kg8 22.Rb2 Qc6 23.cd5 ed5 24.Nd4 Qf6 25.Qe3 g6 26.Rb7 Kg7 27.f3 (27.Rb5 Rhd8=+) 27...Nc5 (better 27...Rhe8 28.Rbb1 Rac8-/+) 28.Rc7?? (better 28.Re7 Rhc8 29.Re5=+) 28...Rhe8! 29.Nf5 (29.Qe8 Qd8 Double attack (29...Qd4 Deflection; 29...Qd8 Decoy)) 29...gf5 (worse 29...Qf5 30.Qc3 d4 31.Qd4 Kg8 32.Qd2-+) 30.Qf2 (30.Re7 d4 31.Qe5 Re7 32.Qe7 Qe7 33.Re7 d3-+) 30...Re1 (better 30...Nd3 31.Qg3 Kh8 32.Re8 Re8-+) 31.Qe1 Qb6 (better 31...Nd3 32.Qc3 Re8 33.Qf6 Kf6-+) 32.Qc3-/+ Kg8 33.Qc5 Qb1 34.Qc1 Qc1 (34...Rb8 35.Rc2-/+) 35.Rc1=+ Rb8 36.Rc2 Rb5 37.Kf2 Kg7 38.Ke3 Kf6 (38...Rb4 39.Rd2 f4 40.Ke2-/+) 39.Kd4=+ Ke6 (39...f4=+) 40.Re2 (better 40.Rc6!? Ke7 41.g3=) 40...Kd6-/+ 41.Kc3 Rb4 42.g3 (42.Re8 Ra4 43.Kb3 Rh4-/+) 42...Rc4 43.Kd3 Ra4 44.f4 f6 45.Rb2 Kc5 46.Rc2 Rc4 47.Re2 Rd4 48.Kc3 Re4 49.Rb2 Re3 50.Kd2 Ra3 51.Rc2 Kd4 52.Ke2 Ke4 53.Kd2 d4 54.Rb2 (54.Kd1 Rd3 55.Ke1 h5-+) 54...h5 55.Ke2 h4! 56.Kf2 (56.gh4 Re3 Double attack (56...Kf4 Deflection; 56...Rh3 Decoy)) 56...hg3 57.hg3 Rf3 58.Kg2 Rc3 59.Re2 Kd3 60.Re7 (60.Kf3-+) 60...Kc2 61.Re2 Kd1 62.Kf1 (62.Re6 d3 63.Rd6-+) 62...Rf3 63.Rf2 Rf2 64.Kf2 d3 (64...d3 65.a4 d2-+) 0–1. Flaata,Alexander – Ferkingstad,Sjur (2075), Stavanger op, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7)

9.Qe2 Bc5 10.0-0 Ne7 11.Re1 0–1. Glimmerveen,M (2100) – Legemaat,G (2235), 8th OGD Prinsenstad, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

9.Qe2 Bc5 10.Bf4 Ne7 11.0-0 Nb6 (11...Ng6 12.Bg3=) 12.Bg3 (12.Be3 Be3 13.Qe3 Nc4+=) 12...a4 13.Nbd2 Bd7 14.Rac1 h6 (14...Rd8 15.c4 dc4 16.Nc4 Nc4 17.Bc4+= (worse 17.Rc4 Bb5 18.Rc5 Bd3=+)) 15.Nd4 (15.c4 dc4 16.Bc4 Ba3+-) 15...Rc8 16.Nf5 (better 16.Qg4!? 0-0 17.c4+=) 16...Nf5 (16...ef5 17.e6 f4 18.ed7 Nd7 19.Bh4-+) 17.Bf5 Ba3 (17...ef5 18.e6 Bb5 19.Qb5 Qc6 20.ef7 Kf7 21.Qd3-/+) 18.Rc2=+ Nc4 (better 18...ef5!? 19.e6 Bb5 20.Qb5 Qc6 21.ef7 Kf7=+) 19.Nc4= dc4 20.Rb1 Qc5 (20...ef5?? 21.e6 fe6 22.Bc7 Rc7 23.Qe5+-) 21.Be4 b6 (21...Bb5 22.Bb7 Rb8 23.Bf3=) 22.Rd2 (22.Qg4!? 0-0 23.Bf4+-) 22...Bb5= 23.Qg4 0-0 24.Bf4 Bc6 25.Bc2 (25.Bc6 Rc6 (25...Qc6? 26.Bh6 g6 27.Bf8 Bf8 28.Qf4+-) 26.Qf3 Rc7=) 25...Rfd8 (25...b5 26.Re1 Rfd8 27.Bh6+-) 26.Re2 (26.Qg3!? Kh8 27.Rd8 Rd8 28.Be3=) 26...Kf8=+ 27.Be3 Qe5 28.Bh6 (better 28.Bb6!? Qc3 29.Bd8 Rd8 30.Qf4-/+) 28...Qc3-+ 29.Be3 Bc5 (29...b5!?-+) 30.Bc5-/+ bc5 31.Qh5 g6 32.Qc5 Kg7 33.Qb4 (better 33.Qg5!?-/+) 33...Qb4-+ 34.Rb4 c3 0–1. Kieffer,C (2180) – Peek,Mar (2370), Open A Bethune FRA, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7)

9.Bf4 Nc5 10.Bc2 f5 (10...Ne7 11.Nbd2=) 11.0-0 Ne7 12.Re1 (12.Nh4 Ne4=) 12...Ng6=+ 13.Bg3 (13.Be3 Be7=+) 13...Be7-/+ 14.Nd4 (14.Nbd2 0-0 15.h4 Ne4-/+) 14...h5 (better 14...0-0!? 15.f4 Ne4-+) 15.h3=+ h4 16.Bh2 Bd7 (better 16...Ne4=+) 17.Nf5+- (17.Nf5 0-0 18.Ne7 Ne7 19.a4+-) 1–0. Zentgraf,Robert (1825) – Herrmann,Carsten (2075), JBLN Ost, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

9.Bf4 Ne7 10.Qe2 Nb6 11.0-0 Bd7 (11...Ng6 12.Bd2=) 12.a4+= Rc8 13.Bg3 (13.Nfd2 Ng6 14.Be3 Be7=) 13...g6 (13...Ng6 14.Rc1+=) 14.Nd4 Nf5 (14...Bg7 15.f4=) 15.Bf5 (15.Nf5!? gf5 16.Bf5+-) 15...gf5= 16.Nf5 Qc4 (worse 16...ef5 17.e6 f4 18.ed7 Kd7 19.Qg4 Kd8 20.Bf4+-) 17.Qe3 Qc5 (17...Na4 18.Nd6 Bd6 19.ed6 Rg8= (19...Bb5?? 20.Na3 Qg4 21.Nb5+-)) 18.Nd4+= Nc4 19.Qg5 h5 20.Kh1 (20.Bh4 Qc7+=) 20...Qe7= 21.Qc1 Bh6 (21...Bg7 22.f4=) 22.Bf4+= Bf4 23.Qf4 Rg8 24.Nf3 Nb6 (24...Rg4 25.Qh6+-) 25.Qh6 (25.Qd4 Qc5 26.Qd1 Na4 27.Ra4 Bb5+-) 25...Na4+= Exerts pressure on the backward pawn 26.c4 (26.Nd4!? Nc3 27.Nc3 (27.Ra5 Qb4 28.Qh7 Rf8 29.Nc3 Qa5-+) 27...Rc3 28.Ra5+=) 26...Rc4=+ 27.Qh7 Qf8 28.Nbd2 Rc8 (better 28...Rcg4!? 29.Rfb1 b6-/+) 29.Ra4+= Bb5 30.Ra5 Bf1 31.Nf1 Qg7 32.Qg7 Rg7 33.g3 (33.Ra7 Rc7+=) 33...Rg4 (33...Ke7 34.Kg2=) 34.Rb5 (34.Kg2 Rb4=) 34...Rc7= 35.h3 Ra4 36.N1d2 (36.Kg2 Ke7=) 36...Ra2 (36...Ke7 37.Kg2=) 37.Kg2+= Kd7 38.Kf1 Kc8 39.Rb4 Rc1 40.Ke2 Rc4 41.Rb3 Rca4 ½–½. Tidman,S (2040) – Buckley,M (2120), 4NCL Birmingham ENG, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

9.Qe2 Ne7

10.0-0 Nb6 11.Nd4 Ng6 12.f4 Bc5 13.Be3 Bd7 14.a4 0-0-0 (14...0-0!?+=) 15.Nb3+- Be3 16.Qe3 Nc4 17.Qa7 Qb6 18.Qb6 Nb6 19.Na5 Kb8 (19...f6 20.c4 fe5 21.Bg6 hg6 22.fe5+-) 20.Nb3+- Rc8 (20...f6 21.N1d2+-) 21.Nd4 Rc5 22.g3 (22.a5 Nc4 23.Bc4 Rc4+-) 22...Nc4+- 23.Re1 Ne7 (23...Rhc8 24.h4+-) 24.Ra2 g6 (24...Rhc8 25.Nb3 R5c7 26.N3d2+- (26.Bh7?! g6=)) 25.Nb3+- Rc7 26.N3d2 Na5 27.Rc2 Rhc8 28.Rec1 Nf5 29.Bf5 (29.Kf2 h5+-) 29...ef5 30.Na3 Be6 31.Kf2 Ka7 32.Ke3 Kb6 33.Kd3 Rd8 (33...Nc4 34.Nac4 dc4 35.Ke2+-) 34.Kd4 (34.Ra1 Nc4+-) 34...Rc5 35.Rb1 Rc7 36.Rb4 Rc5 37.Nb3?? (better 37.h3+-) 37...Nb3 (better 37...Rc4!? 38.Nc4 dc4 39.Ke3 cb3-+) 38.Rb3= Rc4 39.Kd3 Ra4 40.Nb1 Rc8 (40...Re4 41.Rcb2=+) 41.Nd2 Rc5 42.Nf3 (42.Rcb2!?=) 42...d4=+ 43.Nd4 (43.cd4 Rc2 44.Kc2 Bb3 45.Kb3 Kb5-/+) 43...Bb3 44.Nb3 Rb5 45.Nd4 Rd5 (45...Rb1 46.Rd2-/+) 46.Rb2 Kc7 47.h3 h5 48.g4 (48.Ke2 b6-/+) 48...hg4 49.hg4 fg4 50.Rg2 g3! 51.Ke4 (51.Rg3 Rdd4) 51...Rc5 52.Rg3 Kd7 53.f5 gf5 54.Kf5 Ke7 55.Re3 (55.Nb3 Rcc4-+) 55...Ra3 (55...Rac4 56.Nb3 Rc8 57.Na5-+) 56.Ne2 b5 (56...f6 57.Kf4-+) 57.Kf4 (57.Rh3 Ra1 58.Nd4 Re1-+) 57...Rb3 (57...Rc4 58.Kf3-+) 58.Re4 (58.Nd4 Rbc3 59.Rc3 Rc3 60.Nb5 Rc4 61.Kf5 Rc5-+) 58...Rc4 (58...Rb1 59.Re3-+) 59.Nd4 (59.Rc4!? bc4 60.Ke4-+) 59...Rb1 60.Nf5 Kf8 (better 60...Ke6!? 61.Rc4 bc4-+) 61.Rc4-/+ bc4 62.Nd6 Ra1 (62...Rc1!? 63.Nc4 Rc3-/+) 63.Ke4=+ Ra4 (63...Re1 64.Kd5=+) 64.Kd5 Ke7 65.Nc4 Ra1 (65...Ra2 66.Ke4=+) 66.Ne3 (66.Nb2 Ra5 67.Kd4 Kd7=) 66...Rc1 (66...Ra5!? 67.Kd4 Ke6=+) 67.c4= Re1 68.Nf5 Kd7 69.Nd4 Rh1 70.c5 Kc7 71.Nb5 Kb7 (71...Kd8 72.Nc3=) 72.Nd6+= Kc7 73.Nf7 Rd1 74.Ke6 (74.Kc4 Rc1 75.Kd4 Rd1 76.Kc3 Kc6=) 74...Kc6= 75.Nd6 Kc5 76.Nf5 Re1 77.Kf6 Re5 78.Ke5 ½–½. Nabuurs,M (2105) – Seip,R (2010), 3rd ENCI Limburg Open, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7)

10.Bf4 Nc5 11.Bc2=.

10.Bf4 h6 11.h4 (11.0-0 g5 12.Bg3 Nc5=) 11...g6 (11...Nc5 12.Bc2=) 12.0-0 Bg7 Increases the pressure on e5 13.Nbd2 (13.Re1 Nc5=) 13...b6 (13...g5 14.Bh2=+) 14.c4 Nc5 (14...g5 15.Bg3 gh4 16.Bh2=) 15.Rac1 Bb7 16.Bb1 (16.Nb3 Nb3 17.ab3 dc4 18.Rc4 Qb8=) 16...Rd8 17.cd5 Bd5 (17...Nd5 18.Bg3=) 18.Nc4 Bc4 19.Rc4 Qb7 (19...Nd5 20.Bd2+=) 20.Be3+- Nd7 21.Rfc1 (21.Bd4 Qb8+-) 21...Nd5 (21...Ne5 22.Ne5 Be5 23.Bb6 Bh2 24.Kh2 Qb6 25.a4+=) 22.h5 g5 23.Bd4 Qb8 24.Qe4 Qa8 25.Nh2 (25.g4 Bf8+-) 25...Ne7 (25...Nf4!? 26.Rc6 Nh5+-) 26.Qa8+- Ra8 27.Ng4 Rd8 28.Be4 0-0 (28...Nf5 29.Bc3+-) 29.Nf6 (29.Bc6!? Rfe8+-) 29...Bf6+- 30.ef6 Nd5 (30...Nc8 31.Bc6 Nd6 32.R4c2+-) 31.Bd5 ed5 32.Rc6 Rfe8 33.Rd6 Nf8 34.Rd8 Rd8 35.Bb6 Rb8 36.Rc6 (36.Ba7 Rb7 37.b6 Ne6+-) 36...Nd7 37.Bd4 (37.Bc7 Rb5 38.Rd6 Nc5 39.Rd5 Rb1 40.Kh2 Ne6 41.Ba5 Nf4 42.Rd8 Kh7+-) 37...Rb5+- 38.Rc8 Kh7 39.Rc7 Rb4 40.Rd7 (40.Bc3 Rb1 41.Kh2 Rc1+-) 40...Rd4+= 41.Rf7 Kg8 42.Rg7 Kf8 43.Rh7 Ra4 (43...Rd1!? 44.Kh2 Rd2+-) 44.Rh6+- Kf7 (44...Ra2 45.Rg6 Rb2 46.Rg5+-) 45.Rg6 g4 (45...d4 46.Rg5 d3 47.Rd5 Ra2 48.Rd3 Kf6 49.Rd6 Kf7 50.g4+-) 46.Rg5 d4 (46...Kf6 47.h6 g3 48.fg3 Kg5+-) 47.h6 Rb4 (47...d3 48.h7 d2+-) 48.h7 Rb8 49.Rg7 (49.Rg7 Kf6 50.Rg8 Rb1 51.Kh2 g3 52.fg3+-) 1–0. Bortnyk,Olexandr – Stupak,Kirill, Bank Lviv Open Chess Tournament, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7 9.Qe2 Ne7)

10.0-0 Ng6

11.Re1 a4 12.Na3 (better 12.a3!?=) 12...Qc3=+ 13.Nc2 (13.Bb2 Nf4 14.Bc3 Ne2 15.Re2 Ba3=+) 13...Nc5 (better 13...Nge5!? 14.Ne5 Ne5 15.Qe5 Qd3-/+) 14.Bg6 hg6 15.Rb1 (15.Be3 Qd3=+) 15...Qd3 16.Ba3 Qe2 17.Re2 Ne4 18.Re3 Bd7 19.Bf8 Rf8 20.Ra3 (20.Ncd4 Rc8-/+) 20...Ke7 21.Ncd4 Rfc8 (21...f6 22.Re1-/+) 22.h3 Rc4 23.Kf1?? (better 23.b6-/+) 23...Rd4!-+ 0–1. Limbach,Renate (2130) – Cosma,Elena Luminita (2255), Wch U20 Girls, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7)

11.Re1 Be7

12.Qf1 1–0. Martens,M (2410) – Eveleens,Wim (2130), 8th OGD Prinsenstad, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

12.g3 Nc5 13.Bc2 Bd7 14.Nbd2 (14.Bg5 Bg5 15.Ng5 Qe5 16.Qe5 Ne5 17.Re5 f6 18.Ne6 Be6=) 14...f6 15.Rb1 (15.ef6 gf6 16.Rb1 e5=) 15...Ne5=+ 16.b6 Nf3 17.Nf3 Qd6 18.Nh4 (18.Nd4=+) 18...0-0-0 (18...g6 19.Ba3-/+) 19.Ba3 (19.Nf5 ef5 20.Qe7 Qe7 21.Re7 g5=) 19...g6 (19...Bf8 20.Nf3=+) 20.c4=+ d4 21.Qd2 Bc6 22.Qa5 Kd7 23.Rbd1 Ra8 24.Qb4 e5 25.Ng2 (better 25.Qb2!?-/+) 25...Ne6-+ 26.Qd6 Bd6 27.Bd6 Kd6 28.Bb3 Ng5 29.Nh4 Kc5 30.Rd2 e4 31.Kf1 Rhe8 (31...Rhd8 32.Red1-+) 32.Red1 Rad8 33.a4 e3 34.fe3 de3 35.Re2 (35.Rb2 Rd1 36.Bd1 Kc4-+) 35...Rd1 36.Bd1 Nf3 (worse 36...Kc4 37.Ng2 Kd4 38.Ne1-+; 36...Kb6?! 37.Ng2-+) 37.h3 (37.Ra2 Nh4 38.gh4 f5-+) 37...Nh4 38.gh4 Bf3 (38...Kc4?! 39.Ke1-+) 0–1. Lerch,Patrice (2280) – Zaja,Ivan (2405), Cannes op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

12.h4 Nc5 13.Bc2= Bh4 (worse 13...Nh4 14.Nh4 Bh4 15.Qg4+-) 14.Nh4 Nh4 15.b6 (better 15.c4!? 0-0 16.Bg5=) 15...Qb6=+ 16.Na3 Bd7 (16...0-0 17.c4-/+) 17.Rb1=+ Qc7 (17...Qc6 18.Qh5 Ng6 19.Nb5=) 18.Be3 (18.Nb5 Bb5 19.Qb5 Nd7 20.Ba3+= (worse 20.Qb7 Ra7 21.Qc7 Rc7=)) 18...0-0 19.Bh7 Kh7 20.Qh5 Kg8 21.Qh4 Ne4 22.Bd4 Qd8 (22...Rae8!?=+) 23.Qd8= Rfd8 24.Rb7 Bc6 25.Rb6 Rdc8 ½–½. Granara Barreto,Sebastian (2155) – Lopez Azambuja,N (2265), Montevideo Uruguay, Verano Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7 9.Qe2 Ne7)

12.h4 Bh4 13.Nh4 Nh4 14.Ba3 Qd8 15.Qh5 Ng6 16.c4 (16.Bg6 fg6 17.Qg4 Nb6=+) 16...dc4 17.Bg6 (worse 17.Bc4 Nde5 18.Rd1 Qf6-/+ (worse 18...Nc4 19.Rd8 Kd8 20.Qc5+=)) 17...fg6 18.Qg4 Nb6 19.Nc3 g5 (19...Bd7 20.Rac1+=) 20.Qh5 (20.Rad1 Nd5+-) 20...g6+= 21.Qh6 Qd7 (better 21...Kf7+=) 22.Rad1+- Nd5 (22...Rg8 23.Rd7 Bd7 24.Bc5+-) 23.Rd5! (23.Qg5?! h6 24.Qh4 g5 25.Qc4 Qc7 26.Qc7 Nc7+-) 23...ed5 24.e6 (24.e6 Rg8 25.ed7 Kd8 26.Qg5 Kc7 27.Nd5 Kb8 28.Bd6 Ka7 29.Qe3 b6 30.Qb6) 1–0. Mortensen,Erling (2440) – Hansen,J (2200), Gausdal zt, 1987. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7)

12.h4 Nh4 13.Nh4 Bh4 14.Ba3 Be7 15.Be7 Ke7 16.Qg4 Rf8 (better 16...Kf8!? 17.Qd4 b6=+) 17.Qg7+- b6 (better 17...h6+-) 18.Qh7?? (18.Bh7!? Bb7 19.Nd2 Qc3 20.Nf3+-) 18...Bb7?? (better 18...Ne5 19.Re3 Bd7-/+) 19.Qh4+= f6 20.ef6 Rf6 21.Bf5 Nc5 22.Nd2 Raf8 23.Nf3 (23.Nb3 Kd7 24.Bg4 Rf2+=) 23...Kd7 24.Bh3 (24.Bc2+=) 24...Rf4? (24...Kc8!?=) 25.Qh7 (25.Qh5 Kc8+-) 25...Kd6 (25...Kd8 26.Qh5 R4f6 27.Rad1+-) 26.Qc7 (26.Qg6 Qe7+-) 26...Kc7+= 27.Be6 Kd6 28.Bh3 Ne4 (28...Rc4 29.Rad1+=) 29.Re3 Kc5? (29...Bc8!? 30.Bc8 Rc8+-) 30.Rb1 (30.Ne5 Kb5 31.f3 Ng5 32.Bd7 Ka6+-) 30...Rg8 31.Rb2 Kc4?? (better 31...Kd6+-) 32.Ne5 (32.Ne5 Kc5 33.Nd3 Kc4 34.Nf4+-) 1–0. Moravec,Vit (2165) – Melkevik,Johannes (1995), Open Letni Praha – A, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Qc7 9.Qe2 Ne7 10.0-0 Ng6)

8.Bd3 Ne7

9.Bf4 Ng6= 10.Bg3 Be7 11.0-0 0-0 12.Qe2 Nc5 13.Bc2 Bd7 14.Nbd2 Qb6 15.a4 f5 (15...Rfd8 16.Rfd1=) 16.ef6+= Bf6 (16...gf6 17.c4 f5 18.cd5 ed5 19.Ne5+=) 17.Bg6+- hg6 18.Ne5 Be8 19.c4 Rd8 20.Ra2 g5 21.h3 Kh7 22.Rd1 Bg6 23.Ng6 Kg6 24.Qg4 Kf7 25.cd5 ed5 26.Nf3 Ne6 (26...Ne4 27.Rc2 Ng3 28.Qg3+-) 27.Be5 (better 27.Rad2!?+-) 27...Kg8 28.Bf6 gf6 (28...Rf6 29.Re2+-) 29.Rad2 Kf7 (29...Nc7!?+-) 30.Qf5+- Kg7 31.h4 (31.Re1 Rfe8 32.Rde2 Rd6+-) 31...Rd6 (better 31...Nf4+-) 32.Rd5 Rd5 33.Rd5 (33.Qd5 Rd8 34.Qb3 Rd1 35.Qd1 gh4 36.Qd7 Kf8 37.Nh4 Nc5 38.Ng6 Kg8 39.Qd5 Kg7+-) 33...Rf7 (33...Rd8 34.hg5 Rd5 35.Qd5 fg5 36.Ng5 Ng5 37.Qg5 Kf8 38.Qf5 Ke7 39.Qe4 Kf8 40.g4+-) 34.hg5 fg5 (34...Ng5 35.Ng5 fg5 36.Qg5 Qg6+-) 35.Qe5 Rf6 (35...Kf8 36.Rd6 Qc7 37.Qe6 Qc1 38.Ne1 Qa1 39.Qh6 Ke7 40.Re6 Kd7+-) 36.Rd6 (36.Rd6 Qc7 37.Re6 Qe5 38.Re5+- (worse 38.Ne5 Re6 39.Nc4 Re4-/+); 36.Rd7 Kg6 37.Qe4 Rf5 38.Ne5 Kh6 39.Qf5 Qf2 40.Kf2 Nf4 41.Rh7) 1–0. Bochkarev,Alexander (2510) – Potkin,Alexey V (2325), Chigorin mem, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 Ne7)

9.0-0 Ng6

10.Re1 Bc5 11.a4 0-0 12.Bg5 Qb6 13.Qe2 (13.Be3 Qc7+=) 13...f6 (better 13...Nde5!? 14.Ne5 Ne5-/+) 14.ef6= Nf6 (better 14...gf6 15.Bh6 Nge5 16.Ne5 Ne5=) 15.Ra2?? (better 15.Bg6 hg6 16.Be3+/-) 15...Ng4-/+ 16.Qf1? (16.Be3 Nf4 17.Qd2 Ne3 18.fe3 Bd7-/+) 16...e5 (16...Qd6 17.h3 Nf2 18.Be3 Nd3 19.Qd3 Rf3 20.gf3 Qg3 21.Kf1 Qh3 22.Rg2-+) 17.Bg6? (better 17.h3 Nf2 18.Rf2-/+) 17...Qg6-+ (17...hg6?! 18.Bh4 e4 19.Nd4=+) 18.h3 Nf2 19.Rf2 Rf3 20.Be3 (20.gf3 Qg5 21.Qg2 Qf4-+ (21...Bf2?! 22.Kf2 Qh4 23.Qg3 Qa4 24.Qe5 Qb5 25.c4 Qb6 26.Kg2 Qg6 27.Kh2-+)) 20...Be3 (better 20...Re3 21.Re3 Be3-+) 21.Re3 Rf2 22.Kf2 Bf5 23.Nd2 e4 (better 23...Rf8!? 24.Rf3 e4-+) 24.Kg1-/+ Qb6 25.Qe1 Rf8 (25...d4 26.cd4 Qd4 27.Qf2-+) 26.Nb3-/+ Bg6 27.Nd4 Qc5?? (27...Qf6 28.Qg3-/+) 28.Qd2?? (better 28.Ne6!? Qd6 29.Nf8 Kf8 30.Qf2 Kg8 31.Re1+/-) 28...Rc8 (28...Qc4 29.Qd1-/+) 29.Kh1? (better 29.Nb3!? Qc7 30.Qd5 Bf7 31.Qd1=+) 29...Qc4 30.Qd1 Rf8 31.Kg1 Bh5?? (better 31...Rf6-/+) 32.Qh5+- Qf1 33.Kh2 Qf4 (33...Qf7 34.Qe5 Qf4 35.Qf4 Rf4+-) 34.Rg3 g6 (34...Qf7 35.Qe5 g6 36.Qd6+-) 35.Qg4 (better 35.Qd5 Qf7 36.Qe4+-) 35...Qd6 36.Nc2 Rf4 (36...Rf7 37.Ne3 Rc7 38.Qd1 Rc3 39.Qd5 Qd5 40.Nd5+-) 37.Qe2 (37.Qc8 Kg7 38.Nd4 Rf7 39.Ne6 Kh6+-) 37...Kg7 (37...Rf5 38.Qd2+-) 38.Qe1 (38.Ne3!? Rf6 39.Qd2 h6+-) 38...h5 39.Ne3?? (better 39.Kg1+-) 39...h4-/+ 40.Kg1 (40.Nd5!? Rf5 41.c4-/+) 40...hg3-+ 41.Qg3 Rf1?? (better 41...Kh6-/+) 42.Nf1+- Qc5 (42...Qg3 43.Ng3 Kf6 44.Kf2+-) 43.Qf2 (better 43.Qe3 Qe3 44.Ne3 Kf7 45.Nd5 g5+-) 43...Qe7 (43...Qc3 44.Qb6 Kh6+-) 44.Qd4 Qf6 45.Kh1 (45.Qd5 b6+-) 45...Kf7 (45...Qd4 46.cd4 Kf6+-) 46.Kg1 (46.Qd5 Kf8 47.Qc5 Qe7 48.Qc8 Kg7+-) 46...Qd4?? (46...Kg7 47.Qd5 Qe7+-) 47.cd4+- Ke6 48.Ne3 Kf6 (48...Kd6 49.h4+-) 49.g3 (better 49.Nd5 Ke6 50.Nf4 Kd6+-) 49...Kg5 (49...Ke6+-) 50.Kf2 Kf6 51.h4 Ke7 52.g4 Kd6 53.Kg3 Ke7 54.h5 Kf7 55.h6 Kg8 (55...g5 56.Nd5 Kg6 57.Nf6 Kh6 58.Ne4+-) 56.g5 Kh8 (56...Kf7 57.Kf4 Kf8 58.Nd5 e3 59.Ne3 Kg8 60.d5 Kh8 61.d6 Kh7 62.d7 b6 63.Nd5 Kg8 64.d8Q Kf7 65.Qf6 Kg8 66.Qg7) 57.Kg4 Kh7 58.Kf4 Kh8 59.Ke5 Kh7 60.Kd5 Kh8 (60...Kg8 61.Ke6 Kh8 62.d5 Kg8 63.d6 Kh8 64.d7 Kh7 65.Nd5 Kh8 66.d8Q Kh7 67.Nf6) 61.Ke4 (61.Ke6 Kh7 62.d5 Kg8 63.d6 Kh8 64.d7 Kh7 65.Nd5 Kh8 66.d8Q Kh7 67.Nf6) 61...Kh7 62.Ke5 Kh8 63.d5 Kh7 64.d6 Kh8 65.d7 Kh7 66.d8Q b6 67.Qd7 Kh8 68.Qg7 1-0. zsolti_83 (2535) - franconator (2365), Rated Blitz game, lichess.org, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

10.Re1 Qc7 Pawn e5, live or die! 11.Qe2 Be7 12.h4 Bh4 13.Nh4 Nh4 14.Ba3 Ng6 15.Bd6 Qd8 16.Nd2 (16.Qg4 b6=) 16...b6 (16...Qg5 17.c4=) 17.g3 (17.Qe3 Bb7=+) 17...Nc5 18.Nb3 (18.Bc2!?=+) 18...Nd3-/+ 19.Qd3 Bb7 (19...h5 20.c4-/+) 20.Nd4 Ne7 21.f4 Rc8 22.Re2 Rc4 23.g4 (23.Rf1 h5-/+) 23...g6 (23...Qc8 24.Re3-/+) 24.Rf1 Nc8 (24...h5 25.Rh2-/+) 25.Ba3 (25.f5 A) 25...Nd6 26.ed6 0-0 27.fe6 fe6 28.Re6 Rf1 29.Qf1+- (29.Kf1?! Bc8 30.Qe3 Be6 31.Qe6 Kg7+-); B) 25...gf5 26.gf5 Nd6 27.ed6 Rg8 (27...Qd6?! 28.fe6 f6 29.Rf6+=) 28.Kh1 Qf6-/+ (28...Qd6 29.fe6 Rf8 30.ef7 Kd8 31.Qe3+-)) 25...Ra4 (25...Qc7 26.Rf3-/+) 26.Bc1 Ne7 27.Rg2 (27.Rh2 Qc7-/+) 27...Qc7 28.Qe3 (28.Rf3 h5 29.Rh3 Rc4-/+) 28...Bc8 (28...h5 29.Rh2-/+) 29.Qf3 (29.Rf3 Bd7-/+) 29...h6 (29...h5 30.Rh2-+) 30.Qd1 (30.Rh2 Qc4 31.Rff2 Bd7-/+) 30...Rc4 31.Bd2 (31.Rh2 Qc5-/+) 31...a4 (31...Bd7 32.a4-/+) 32.Qe1 (32.Rh2 Bd7-/+) 32...Bd7-+ 33.Qh4 (33.Rh2 h5-+) 33...Qc5 34.Qf6 Rh7 35.f5 (35.Rb1-+) 35...ef5 36.gf5 Nf5 (36...Bb5? 37.fg6 Ng6 38.Rg6 fg6 39.Qg6 Kd8 40.Qh7 Rd4 41.Qh8 (41.cd4 Qd4 42.Rf2 Qg4 43.Rg2 Qd1 44.Kh2 Qh5 45.Kg3 Qe5 46.Kf3 Qf6 47.Bf4 Qc3 48.Kf2 Qd4 49.Kg3 Qd3 50.Qd3 Bd3+-) 41...Kc7 42.Qg7 (42.cd4?! Qd4 43.Rf2 Qg4 44.Rg2 Qd4 45.Kh1 Qh4 46.Rh2 Qe4 47.Kg1 Qd4 48.Kh1 Qe4 49.Kg1 Qd4 50.Kh1 Qe4=) 42...Bd7 43.cd4 Qd4 44.Rf2+-) 37.Rf5 (37.Rg6 fg6 38.Qg6 Kd8 39.Qh7 Nd4-+) 37...Bf5 38.Kh2 (38.Rf2 Qe7 39.Qb6 Qe5-+) 38...Qe7 (38...Bd7 39.Re2 g5 40.e6 fe6 41.Ne6 Be6 42.Re6 Re7 43.Be3 Re6 44.Qe6 Qe7 45.Qg8 Kd7 46.Kg2 Qe4 47.Kf2 Qf5 48.Ke1-+) 39.Qb6 (39.Nf5 Qf6 40.ef6 gf5-+) 39...Qe5 40.Kg1 Kf8 (better 40...Be4!? 41.Nc6 Qd6 42.Re2-+) 41.Rf2 (41.Qd8 Kg7 42.Qd6 Qe4-+ (42...Qd6 43.Nf5 Kf6 44.Nd6+-)) 41...Bh3 (41...Qg3 42.Rg2 Qc7 43.Qc7 Rc7 44.b6-+) 42.Qd8 (42.Rf3 Bg4 43.Re3 Qc7-+) 42...Kg7 43.Qh4 (43.Rf3 Rc8 44.Qh4 Bd7-+) 43...Bc8 (43...Bd7 44.Rh2 h5 45.Bf4-+) 44.Rf1 (44.Rh2 h5-+) 44...g5 45.Qf2 Qe7 (45...Be6 46.b6-+) 46.Be3 (46.Qf3 Be6-+) 46...f5 (46...Bh3 47.Qf3 Qd7 48.Rf2-+) 47.Nf3 (47.Qg3 Qe4 (47...Rc3?! 48.Nf5 Bf5 49.Bd4 Kg8 50.Qc3-+) 48.Bf4 Kf6-+) 47...Rg4 48.Kh1 Kg8 49.Bd4 Re4 (49...Qe8 50.b6-+) 50.Qh2 f4 (50...Re2 51.Rf2 Rf2 52.Qf2-+) 51.Qc2 (51.b6 Qe6-+) 51...g4 52.Nd2 Qh4 53.Kg1 Qg3 54.Kh1 Bf5 55.Qa4 Re8 56.b6 Rhe7 57.Qc6 (57.Qb5 Re5! 58.Qe8 Re8 59.b7 f3 60.Nf3 Qh3 61.Kg1 gf3 62.Rf3 Re1 63.Kf2 Rf1 64.Ke3 Qf3 65.Kd2 Qd3) 57...f3 58.Nf3 Be4 (58...Be4 59.Qf6 Rh7-+ (59...gf3?! 60.Qh8 Kf7 61.Qf6 Kg8 62.Qh8 Kf7 63.Qf6 Kg8=); 58...gf3 59.Rg1 Qg1 60.Kg1+=) 0–1. Rahls,Peter (2300) – Uhlmann,Wolfgang (2450), Dresden ZMD Open, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

10.Re1 Be7 11.Ba3 0-0 12.h4 (better 12.Be7!? Qe7 13.Bg6 fg6 14.Nbd2+=) 12...Ba3=+ 13.Na3 Nh4 14.Nh4 Qh4 15.Re3 g6 (15...h6 16.Nc2-/+) 16.c4=+ Nc5 17.Be2 (17.cd5 ed5 18.Rc1 b6=+) 17...Rd8 18.Qc1 (18.g3 Qe7 19.Qd4 b6-/+) 18...Ne4 (18...b6 19.Qb2-/+) 19.Rf3 Qe7 (19...Qh5 20.Qf4 g5 21.Qe3=+) 20.Qf4=+ b6 21.Nc2 (21.Rd1 Bb7=+) 21...Bb7-/+ 22.Ne3? (22.cd5 Bd5 23.Rh3 Rac8-/+) 22...h5?? (22...Nc3 23.Re1 d4 24.Ng4 Ne2 25.Re2 Bf3 26.gf3-+) 23.Bd3? (23.cd5 ed5 24.Bd3 Re8-/+) 23...g5 (better 23...Nc5 24.Rd1 dc4 25.Nc4 Bf3 (25...Nd3?! 26.Rfd3 Rd3 27.Rd3=) 26.Qf3 Nd3 27.Rd3 Qb4 28.Nb6 Qe1 29.Kh2 Qe5 30.Kg1 Rab8-+ (30...Qb5?! 31.Rb3 Qf5 32.Qf5 ef5 33.Na8 Ra8 34.a4-+)) 24.Qh2=+ g4 25.Rf4 Qg5 26.cd5 (26.Be4 de4 27.Qg3-/+) 26...ed5?? (better 26...g3 27.fg3 Qe5-/+ (worse 27...ed5 28.Raf1+=)) 27.Rf5+- Qg7 (27...Qg6 28.Rh5 Kf8+-) 28.Be4 de4 (28...g3 29.Qh5 de4 30.Rg5 gf2 31.Kf2 Rd2 32.Ke1 Rg2 33.Rg2 Qg2 34.Ng2+-) 29.Qh5 (29.Qh5 Bd5 30.Rg5+- (30.Qg4?! Qg4 31.Ng4 Kf8+-); 29.Rh5 Bc8 30.Qh4 Be6+-) 1–0. Wohlfart,Paulus – Kabir,Razaul, Hessenliga9798, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

10.Qe2 Bc5 11.Ba3 b6 12.g3 (12.Bg6 hg6 13.c4 d4=) 12...Bb7 (12...0-0 13.Bc5 Nc5 14.Nbd2=) 13.Bb2 Qc7 e5 becomes the focus of attention 14.Re1 0-0 15.Nbd2 a4 (15...Be7 16.c4=) 16.a3 (16.Rac1=) 16...f5 (better 16...Be7!?=) 17.ef6+- Rf6 18.c4 e5 (18...Rf7!?+-) 19.cd5 Bd5 20.Be4 Qb7 (20...Rd6 21.Rac1 Qb7 22.Bd5 Rd5 23.Ne4+-) 21.Bd5+- Qd5 22.Qe4?? (better 22.Ne4 Rff8 23.Rad1+-) 22...Qe4= 23.Re4 Raf8 (23...Rd6 24.Nc4 Rd3 25.Nfd2=) 24.Kg2+= Rd6 25.Re2 (25.Rf1 Ra8+=) 25...Bd4 (25...Rd3!?=) 26.Nd4+= ed4 27.Nc4 (27.Re4 d3+=) 27...Rd5+= 28.Rd1 Exerts pressure on the isolated pawn (28.Re6 Nge5 29.Ne5 Ne5+=) 28...d3 (28...Rc8 29.Ne3 d3 30.Red2+=) 29.Red2 (29.Re3 Rg5+=) 29...Rb5 30.Rd3 Nc5 ½–½. Jansen,Dirk Norbert (2155) – Brinkmann,Sven (2060), 27th Schwert von Luelsdorf, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 Ne7)

10.Qe2 Bc5 11.Ba3 Nf4 12.Qd2 Nd3 13.Qd3=.

10.Qe2 Bc5 11.Re1 0-0+= 12.a4 Ba7 (12...Qc7 13.g3=) 13.Na3= Bb8 (13...Nc5 14.Bg5 Qc7 15.Bc2=) 14.Bg6+= fg6 (14...hg6 15.Bg5 Qc7 16.c4 Ne5 17.Ne5+=) 15.c4 Nc5 16.Bg5 Qe8 17.Nc2 b6 18.cd5 ed5 19.Ncd4 h6 20.Bc1 g5 21.Qa2 (21.Ba3 g4 22.Nd2 Bb7+=) 21...Bb7 22.h3 Bc7 23.Re3 (23.Ba3 Rc8+/-) 23...Rc8 (23...Rf4 24.Ba3 h5 25.Rc1+/-) 24.Ba3+/- Bb8 25.Rae1 Rf4 (25...Rf7 26.Rc3+/-) 26.g3 ½–½. Martens,Martin (2315) – Romero Holmes,Alfonso (2460), Hoogovens–B, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

10.Qe2 Bc5 11.Be3 Qc7 12.Bc5 Qc5 13.Bg6 hg6=.

10.Qe2 Qc7 Can e5 get defended? 11.Re1 Be7 12.g3 Nc5 13.Bc2 0-0 (13...b6 14.Nd4=) 14.h4 f5 (14...h6 15.h5 Nh8 16.Nd4=) 15.ef6 Bf6 16.h5 (16.Ng5 Bg5 17.Bg5 Nh8+=) 16...Nh8 17.Bf4 Qe7 18.Ne5 (18.h6 g5 19.Be5 Nf7=) 18...Bd7 (18...Nf7 19.Nd2=) 19.Nd2 Rac8 (19...Nf7 20.Ndf3=) 20.a4 (20.Rad1 Be8=) 20...Be8 21.Kg2 g5 22.hg6 Ng6 (worse 22...hg6 23.Bh6 Bg7 24.Bg7 Qg7 25.c4+-) 23.Qg4 Qg7 24.Ng6 Bg6 (worse 24...hg6 25.Bd6+=) 25.Bg6 Qg6 26.Qg6 hg6 27.Bd6 (27.Ra3 e5 28.Bh6 Rf7-/+) 27...Rfe8 (27...Bc3 28.Bf8 Rf8 29.Rad1=+) 28.Bc5 Rc5 29.Nb3 Rc3 30.Na5 Re7 31.Rac1 Kf7 32.b6 (32.Rh1 Ra3 33.Rh7 Bg7=+) 32...Bd4 33.Rb1 Ra3 34.Rec1 Ra4 35.Nb7 Rb7 36.Rc7 Rc7 37.bc7 Rc4 38.Rb4 Rc7 (38...Rb4?! 39.c8Q Bf6 40.f4=) 39.Rd4 Rc4 40.Rd2 g5 41.Kf3 (41.f3 Ke7-+) 41...Kf6 42.Ra2 (42.Ke2 g4-+) 42...Ke5 (42...g4 43.Ke2-+) 43.Ra5 (43.Ke2 Rc3-+) 43...g4 44.Ke3 Rc3 45.Kd2 Rf3 46.Ke2 Rb3 47.Kd2 (47.Kf1 Ke4 48.Ra8 d4-+) 47...Ke4 48.Ke2 e5 49.Ra8 d4 50.Rg8 (50.Rd8 Rb2 51.Kf1 Rb1 52.Ke2 Rb5-+) 50...d3 51.Ke1 Rb1 52.Kd2 Rb2 53.Ke1 Kf3 54.Rf8 Kg2 55.Rf5 Re2 56.Kd1 Rf2 57.Re5 Kg3 0–1. Vandenbussche,T (2190) – Saiboulatov,D (2400), ch–BEL Aalst BEL, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

8.Bd3 f6

9.0-0 fe5 10.Ng5 Ndf6-/+.

9.0-0 Ne5 10.Ne5 fe5 11.Qh5 g6 12.Bg6 Kd7 13.Bc2+/-.

9.Qc2 fe5?! 10.Bg6 Ke7 11.Ba3 Kf6 12.Bc1=.

9.Qc2 Ne5-/+ 10.Ne5 fe5 11.Bh7 Bd6 12.Bg8+= Rg8 13.c4 Qc7 (13...Kf7 14.Ba3+=) 14.Ba3 Bb4 (14...Ba3 15.Na3 Qc5 16.Qg6 Kd8 17.Qg5 Ke8 18.Qg3 Qb4 19.Kf1+=) 15.Bb4= ab4 16.Nd2 e4 17.Qb2 Rh8 (worse is 17...dc4 18.Qb4 Kf7 19.Nc4+-) 18.g3 e3 (18...Qe7 19.0-0=) 19.fe3 Ra3 (19...dc4? 20.Qb4 Rh5 21.Nc4+-) 20.0-0 (20.Ke2 Qe7 (20...dc4? 21.Qb4 Qe7 22.Qe7 Ke7 23.Nc4+-) 21.Qe5 Qd7=) 20...Re3 21.Nf3 (21.Rf2 Rg3 (21...dc4 22.Nc4 Rc3 23.Qb1 Rc4 24.Qg6 Kd8 25.Rd1 Bd7 26.Qg7+=) 22.hg3 Qg3 23.Rg2 Qe3 24.Rf2 Qg3 25.Rg2 Qe3 26.Rf2 Qg3=) 21...dc4 (21...Qc4?? 22.Qg7 Kd8 23.Qg5 Ke8 24.Qe3+-) 22.Qf2 Rd3 23.Ng5 (23.Nh4 Rd5 24.Ng6+=) 23...b6 (23...Rd5 24.h4 A) worse is 24...Rb5 25.Qf7 Qf7 26.Nf7+= (26.Rf7?? Rg5 27.Rc7 Rg3 28.Kf2 Kd8 29.Rc4 Rh3-+); B) 24...c3-/+) 24.Rae1= Qc5 25.Qc5 bc5 26.Rf7 Rh5 27.Rg7 c3 28.Ne4 ½–½. Najer,Evgeniy (2455) – Moskalenko,Viktor (2525), Moscow Petrosian, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5)

9.Qc2 Ne5-/+ 10.Ne5 fe5 11.Bh7 e4 12.Bg6 Kd7 13.Be3-/+.

9.Qc2 Ne5 10.Ne5 fe5 11.Bh7 Be7 12.Bg8 Rg8 13.0-0 (13.Qg6 Kd7=) 13...g6 (13...e4 14.Bf4=) 14.Qe2 (14.Ba3 Bf6=) 14...Qc7 15.c4 (15.Be3 e4=+) 15...Qc4=+ 16.Qc4 dc4 17.Bb2 a4 (17...Rf8 18.Nd2 Bd7 19.a4=) 18.Be5= Bd7 19.Nc3 Rf8 20.Rab1 Ba3 (20...Rf5 21.f4=) 21.Rfd1 Ke7 (21...Be7 22.Bd6 a3 23.Rb4+-) 22.f4 b6 (22...Rf5 23.g4 Rf7 24.Kg2+=) 23.Bd4 (23.g3!?+=) 23...Rf4= 24.Bb6 Bc8 25.Be3 Rf5 26.Rd2 Bb7 27.b6 Re5 28.Bf2 Rd8 29.Rd8 Kd8 30.Nb5 (better 30.Kf1=) 30...Bc5?? (better 30...Be7=+) 31.Bc5+- Rc5 32.Nd6 Rd5 33.Nc4 (33.Nb7 Kc8 34.Rb4 Kb7 35.Rc4 Rd1 36.Kf2 Rd2 37.Kf3 Ra2-+) 33...Kc8 34.Rf1 (34.a3!?+-) 34...Ba6+= 35.Rf8 Kb7 36.Rf7 Kc6 (36...Kb8 37.Ne3 Rb5 38.Rf4+=) 37.Rc7+- Kb5 38.Ne3 (38.Kf2 Rd4 39.Ne5 Kb6 40.Rc6 Kb5+-) 38...Rd8 (38...Rd3 39.b7 Bb7 40.Rb7 Kc6 41.Rb4 Re3 42.Ra4+-) 39.b7+- Kb6 40.Re7 Bb7 (40...g5 41.Rg7+-) 41.Re6 Kc5 42.Rg6 Rd2 43.Rg5 (43.a3 Ra2+-) 43...Kd4 44.Nf5 Ke5 45.a3 Kf6 46.h4 Rg2? (better 46...Rd3+=) 47.Rg2+- Bg2 48.Ng3 (48.Kg2 Kf5 49.Kf3=) 48...Bd5 49.Kf2 Ke5 50.Ke3 Bb3 51.Ne2 Kf6 52.Nd4 (52.Nc3 Kf5 53.Kf3 Kg6+-) 52...Bd5 (52...Bc4 53.Kd2+-) 53.Kf4+- Kg6 54.Ne2 Bb3 55.Ng3 Bc2 56.Ke5 Kh6 57.Kd4 Kg6 58.Kc3 Bd1 59.Kb4 Bc2 60.Kc3 Bd1 61.Kd2 Bf3 (61...Bb3 62.Kd3+-) 62.Ke3+- Bd1 63.Kf4 (63.Kf2 Bb3+-) 63...Bc2+- 64.Nf1 Kh5 65.Ne3 Bb3 66.Kg3 Be6 67.Ng2 Bd7 68.Nf4 Kh6 69.Kf3 Bf5 70.Ke3 Bc2 71.Kd4 (71.Kf2 Bf5+-) 71...Bb3 72.Kc3 Bd1 73.Kc4 Bb3 74.Kb4 Bc2 75.Kc4 Bb3 76.Kc3 Bd1 77.Nd3 Kh5 78.Nb2 Bb3 79.Kb4 Kh4 80.Na4 Bc2 81.Nb2 Kg5 82.Kc3 Bf5 83.a4 Kf6 84.Kd4 Ke6 85.Kc5 Kd7 86.Kb6 Bg4 ½–½. Zakarian,D (2375) – Player,E (2195), 4NCL, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

9.Qe2 fe5 10.Ne5 Ne5 11.Qe5 Nf6 12.Ba3 Ba3 13.Na3 0-0 14.0-0 Bd7 (14...Qe7 15.Nc2=) 15.c4+= Qb6 16.h3 (16.Rac1 Rac8=) 16...Rac8 17.Rac1 Qc5 18.Qb2 Qb4 (18...d4 19.Rce1=) 19.Rb1 (better 19.Qb4!? ab4 20.Nb1=) 19...Qb2=+ 20.Rb2 Rc5 (20...e5 21.cd5 Rc3 22.Rb3=) 21.Rc2 (21.Re1 Rfc8 22.Re5 Kf8=) 21...Rfc8 (21...d4 22.f4=+) 22.Rfc1 (22.f4 a4=) 22...b6 (22...d4 23.f4=+) 23.f4 Kf8 24.g4 White plans f5 24...h6 25.Kf2 (25.Re1 g5 26.Rf2 Ke7=) 25...Ke7 (25...d4 26.Re2=) 26.Kg3 (26.Ke3!?+=) 26...g5= 27.f5 (27.cd5 gf4 28.Kf4 Nd5 29.Kf3 Rc2 30.Nc2 Nb4-+) 27...ef5 28.gf5 (better 28.Bf5!? Bf5 29.gf5=+) 28...Nh5 29.Kh2 Nf4 30.Bf1 (30.Rd2-+) 30...Bf5 31.Rd2 Be6 32.Nc2 (32.Rd4 Kf6-+) 32...dc4 33.Nd4 c3 34.Rdc2 Bd7 35.Nb3 R5c7 36.Nd4 a4 (36...Kf6 37.Kg3-+) 37.Rb1 (37.Nc6 Bc6 38.Rc3 Kd6 39.bc6 Rc6 40.Rd1 Ke7 41.Re3 Kf8-+) 37...Rc5 38.Rb4 Bf5 (better 38...Nd5 39.Ra4 Ne3 40.Rc1-+) 39.Nf5 Rf5 40.Ra4 (40.Rc4 Rc4 41.Bc4 Nd5-+) 40...Rd5 41.Kg3 Rd2 42.Rc1 c2 43.Bc4 (43.Rc4 Rc4 44.Bc4-+) 43...Rc4! 44.Re1 (44.Rc4 Ne2 Double attack (44...Rd3 Deflection)) 44...Re2 45.Rc4 Re1 46.Rc2 Rg1 (46...Rh1 47.Kg4-+) 47.Kh2 (47.Kf3 Nh3 48.Rc7 Ke6 49.Rc6 Ke5 50.Rb6 g4 51.Ke3 Nf4-+) 47...Rb1 48.a4 Rb3 49.Rc7 Kd8 50.Rc6 Rh3 51.Kg1 h5 52.Rb6 Ra3 53.Rb8 (53.Ra6 g4 54.Ra8 Kc7 55.Ra7 Kb6 56.Ra6 Kb7-+) 53...Kc7 54.Rg8 (54.Ra8 g4 55.Rf8 Ra4-+) 54...Ra4 0–1. Zakarian,D (2295) – Antic,De (2520), 6th Open Kalamaria GRE, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

9.Qe2 fe5 10.Ne5 Ne5 11.Qe5 Nf6 12.Bf4 Bc5 13.0-0 0-0=.

9.Qe2 fe5 10.Ne5 Ne5 11.Qe5 Nf6 12.Bg5 Bd6 13.Qe2 0-0 14.0-0 (14.c4 Qc7 15.Nd2 a4= (worse 15...Bh2 16.g3 Ng4 17.b6+=)) 14...Qc7 15.h3 h6 16.Bc1 e5 17.Bb2 (17.Be3 e4 18.Bc2 Be6=+) 17...a4 (17...e4 18.Bc2-/+) 18.c4=+ a3 19.Bc3 d4 20.Be1 (20.Bd2!?=+) 20...e4!-/+ 21.Be4 Ne4 22.Qe4 Qc4 23.Nd2 Qb5 24.Rb1 Qe5 25.Qe5 Be5 26.Nc4 Bf6 27.Bb4 Rd8 28.Rfd1 (28.Rfe1 d3-+) 28...Ra6 (28...Be6 29.Na3 Ba2 30.Rb2-+) 29.Ba5 Rf8 (29...Re8!? 30.Bb6 Be6 31.Re1-+) 30.Bb4-/+ Rd8 31.Ba5 Rf8 (better 31...Rd5 32.Nb6 Rda5 33.Nc8 Rc6-+) 32.Bb4= Rd8 ½–½. Van den Berg,Ha (2135) – Vogel,Ja (2220), SPA Open A Amsterdam NED, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 f6)

9.Qe2 fe5 10.Ne5 Ngf6 11.Nd7 (better 11.Ng6 hg6 12.Bg6 Ke7 13.Ba3 Nc5 14.Bc5 Kd7 15.Bf8 Qf8 16.Nd2+-) 11...Bd7= 12.Bf4 ½–½. Jamieson,I (1945) – Zabrocki,Philip (1950), 4NCL International (4), 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

9.Qe2 Ne5 10.Ne5 fe5 11.Qh5 Kd7 12.Qe5 Qf6 13.Qe3 Bd6 14.0-0 Nh6 15.Qh3 Nf7 16.b6 (16.f4 Ke8+=) 16...Kd8= 17.Be2 (17.Bh7? g6-+) 17...e5 18.Bg4 (18.Qe3 Be6=) 18...e4 (18...Bc5 19.Bc8 Rc8 20.Qd3=+) 19.Rd1 Qe5 20.g3 g5 21.Be3 Bg4 22.Qg4 h5 23.Qe2 Qf5 (23...Rf8 24.a4 h4 25.Ra2+-) 24.Qb5+- Exerts pressure on the backward pawn 24...h4 (24...Re8!?+-) 25.Rd5 Qh3 (better 25...Qg6+-) 26.Rd6!+- Nd6 27.Bg5 Kc8 28.Qc5 Kd7 29.Qc7 Ke6 30.Qe7 Kd5 (30...Kf5 31.Qd7 Kg5 32.Qh3 Kf6+-) 31.c4! (31.Bh4?! Rac8+-) 31...Nc4 (31...Kc4 32.Na3; 31...Nc4 32.Nc3) 32.Nc3 Kd4 33.Bf6 Kd3 (33...Ne5 34.Qe5 Kd3 35.Qe4 Kd2 36.Rd1) 34.Qe4 (34.Qe4 Kd2 35.Rd1) 1–0. Lerch,Pa (2390) – Wyss,J (2240), Mulhouse IM, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

9.Bf4 Nc5 10.Be2 Bd7 (10...Ne7 11.Be3 Nf5 12.Bd4=) 11.a4 (11.c4 Ne7+=) 11...f5 (11...Ne7 12.0-0=) 12.Nd4 (better 12.c4+=) 12...h5?? (12...Rc8 13.Nd2+=) 13.h4 (better 13.Bh5 Ke7 14.Bg5 Nf6 15.ef6 gf6 16.Be3+-) 13...g6+- 14.g4?? (better 14.c4+-) 14...hg4-/+ (worse 14...fg4 15.Nd2-/+) 15.Bg4? (better 15.Bg5 Qc7 16.f4-+) 15...fg4 (15...Rh4!? 16.Rg1-+) 16.Qg4 Ne7 17.Qg2?? (17.Rh3 Qc7-+) 17...Qc7 (better 17...Nd3 18.Kd1 Nf4-+) 18.Rh3 Bh6 (better 18...Bg7!? 19.Qh2-+) 19.Bh6 Rh6 20.f4 0-0-0 21.Ra3 (21.Qg5 Rh7-+) 21...Rdh8 22.Nf3 (22.Nd2 Rh4 23.c4 g5 24.Rh4 gh4-+) 22...Ne4 (better 22...Nd3 23.Kd1 Nf4 24.Qg5 Nh3 25.Qe7 Nf2 26.Kc2-+) 23.Qh2 (23.Qg1 Nf5 24.Nbd2 Nh4 (24...Nc3 25.b6 Qc6 26.Nd4 Qb6 27.Rac3 Bc6 28.N2b3-+) 25.Nh4 Nd2 26.Kd2 Rh4 27.Rh4 Rh4-+) 23...Qc5 24.Ke2 (24.Ng5 Nf5 25.Ne4 de4-+) 24...Rh5 (24...Bb5 25.ab5 Qb5 26.c4 Qb1 27.Ra5-+) 25.Ng5 Ng5 (25...Qc4 26.Kd1 Qf1 27.Kc2-+) 26.fg5 Qc4 (26...Qc4 27.Kd1 Rh4 28.Rh4 Rh4-+) 0–1. Franck,B (2090) – Mankauskas,Donatas, 22nd ch–NATO, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

9.Bf4 Qc7 10.0-0 fe5 (10...Ne7 11.Bg3 f5 12.Nd4=) 11.Ne5+= Ngf6?? (better 11...Ne5 12.Qh5 Qf7 13.Qe5 Nf6+=) 12.Ng6+- e5 13.Nh8 ef4 14.Re1 Be7 15.Bh7 Ne5 (15...Nc5 16.Ng6 Be6 17.Ne7 Ke7 18.Bf5+-) 16.Ng6 (16.Qd4!? Bd6+-) 16...Ng6 17.Bg6 Kf8 18.Nd2 Bg4 19.Qb3 Rc8 20.Rac1 f3 21.h3 Bc5 (21...Qf4 22.Qd1 fg2 23.hg4+/-) 22.hg4 Qg3 23.Nf3 Qf2 (23...Bf2 24.Kf1 Be1 25.Re1 Ng4+-) 24.Kh1 Be3 (24...Qg3 25.Bf5 Rd8 26.Qc2+-) 25.Bf5 (better 25.Rc2 Qg3 26.Re3 Qg4 27.Qa3 Kg8+-) 25...Re8 26.Qa3 (better 26.Rc2 Qg3 27.g5+-) 26...Kf7 27.Qd6 (27.Qa5?? Rh8 28.Bh7 Rh7 29.Nh2 Rh2 30.Kh2 Qh4) 27...Rh8 28.Nh2 Qf4 29.Qf4 (29.Be6 Kg6 30.Qf4 Bf4+-) 29...Bf4 30.g3! Bg3 (30...Bc1 31.Rc1 g6+-) 31.Rc2 (better 31.Re2+-) 31...Be1= 32.Kg2 Bh4 (better 32...g6!? 33.Bd3 Rh4=) 33.Nf3+= Ne4? (33...g5 34.c4+=) 34.Be4 (34.c4 Nd6 35.cd5+- (35.Nh4?! Rh4 36.cd5 Nf5 37.gf5 Rd4+=)) 34...de4+= 35.Nh4 Rh4 36.Kg3 Rh8 37.Re2 (37.Kf4 Re8+=) 37...Re8 38.Kf4 Rc8 39.Re3 Rc4 40.Ke5 Rc5 41.Ke4 Rb5 42.Kf4 Rb2 43.Rd3 (43.a4 Rb3=) 43...Ra2=+ 44.Rd7 Kg6 45.Rd6 (45.Rb7 Ra4 46.Kg3 Rc4-/+) 45...Kh7 46.Rb6 a4 (46...Rc2 47.Rb7 Rc3 48.Ra7 Rc4 49.Kf3-/+) 47.Kg5 (47.Rb7 Rf2 48.Kg5 a3=) 47...a3 (better 47...Rc2!?-/+) 48.Rb7= Rf2 49.Ra7 a2 50.Ra5 Rc2 51.Ra3 Rc3 52.Ra2 Rc5 53.Kh4 Rc4 54.Kh3 Rc6 55.Kh2 Rh6 (55...Rh6 56.Kg3 Rb6=) 0-1. zsolti_83 (2515) - franconator (2385), Rated Blitz game, lichess.org, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

9.ef6 Qf6 10.Bg5 Qf7 11.Be3 Bc5 (11...Ngf6 12.Ng5 Qg8 13.f4+=) 12.Bd4 (12.Ng5 Qf6 13.Nh7 Qe5 14.Bg6 Ke7+=) 12...Ngf6+= 13.0-0 Bd4 (13...Bd6 14.Re1 Nc5 15.Be5+=) 14.cd4+/- (14.Nd4?! e5 15.Nf5 0-0+=) 14...Ne4 15.Nbd2 Qf4 16.Qe2 Ndf6 (16...Nd2 17.Qd2 Qd2 18.Nd2+/-) 17.Rfe1 Nd2 18.Qd2 (18.Nd2?! Qd4 19.Nf3 Qf4=) 18...Qd2 19.Nd2 Bd7 20.a4 Ke7 21.Rac1 Rhc8 22.Nf3 Kd6 23.Ne5 Be8 24.f3 h6 25.Kf2 Ng8 (25...Nd7 26.Nd7 Bd7 27.h4+=) 26.h4 Ne7 27.g4 Rc1 28.Rc1 Rc8 29.Rc2 Rb8 30.Rc5 Nc8 31.Bc2 Nb6 32.Ke3 (32.Rc3 h5+/-) 32...Bd7 (32...Nd7 33.Nd7 Bd7 34.f4+/-) 33.h5 Rf8 ½–½. Lucaroni,Massimiliano (2265) – Amato,Andrea (2345), Condino ITA, 2014. (=1.e4 e6 2.Nf3+= d5 3.e5 c5 4.b4 c4)

9.Bf4 fe5

10.Ne5 Ne5 11.Be5 Nf6 12.0-0 Bc5 13.Nd2 0-0 14.a4 Bd7 (14...Qb6 15.c4+=) 15.Qe2 Qe7 16.Nb3 Bb6 17.Bc2 Be8 18.Rae1 Bf7 19.Nd4 Rfe8 (19...Rae8 20.Qf3+=) 20.Qe3 (20.Bd3 Rac8+=) 20...Bc5 (20...Nd7 21.Qh3 g6 22.Nf3=) 21.Qg3+- Kh8 22.Qh3 Bg8 23.Nf3 h6 (23...Nd7!?+-) 24.Nh4+- Bh7 25.Ng6 Bg6 26.Bg6 Rf8 27.g4 (better 27.Bg3!?+-) 27...Kg8 (27...Ng8 28.Kg2=) 28.g5 hg5 (28...Nh7!? 29.gh6 Qg5 30.Qg3 Qh6=) 29.Bf6+- gf6 30.Re6 Qg7 31.Bf5 Rad8 32.Rfe1 Qh8 33.Qd3 (33.Qg3 Qh4+=) 33...Qh4= 34.Re7 (better 34.Qg3=) 34...Be7?? (better 34...Bf2 35.Kh1 Be1 (35...Qa4?? 36.Be6 Rf7 37.Qg6 Kh8 38.Qh6 Rh7 39.Qh7) 36.Bh7 Kh8+-) 35.Re7+- Rfe8 (35...Qa4?? 36.Be6 Rf7 37.Qg6 Kh8 38.Qh6 Rh7 39.Qh7) 36.Be6 Kh8 37.Qg6 Re7 38.Qf6 Rg7 39.Qd8 Kh7 40.Bf5 Rg6 41.Qe8 (better 41.Qd7 Kh6 42.Qe8+-) 41...Qh5 42.Qg6 Qg6 43.Bg6 Kg6 44.Kg2 Kf5 45.Kf3 g4 (45...b6 46.h3 Kf6 47.Kg4+-) 46.Ke3 Ke5 47.f3 1–0. Lenier,J (2065) – Lock,G (2190), 4th Jessie Gilbert Open, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d4 cd3 8.Bd3 f6)

10.Ne5 Ne5 11.Be5= Qg5 12.Bg3 Bd7 (12...Nf6 13.Nd2=) 13.Nd2 Rc8 (13...Nf6 14.0-0+=) 14.Nf3+= Qh5 15.Rc1 (15.0-0 Nf6+=) 15...Nh6 16.Be2 Qg5 1–0. Helin,Mikael (1910) – Hilmarsson,Andri Steinn, Reykjavik Open, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

10.Ne5 Qf6 11.Nd7 Bd7 12.Bc7 Nh6 13.0-0 Nf7 14.Qc2 Bd6 15.Bd6 Nd6 16.Na3 Rc8 Attacks the backward pawn on c3 17.Rac1 e5 18.f3 g6 19.c4 b6 (better 19...Nb5!? 20.Nb5 Bb5=+) 20.Qe2+= 0-0 21.cd5 Qf4 22.Rcd1 Rc3 23.Nb1 Rd3 24.Rd3 Bb5 25.Nc3 Bd3 26.Qd3 Kg7 (26...Qd4 27.Qd4 ed4 28.Ne4 Ne4 29.fe4+=) 27.Re1 (27.Ne4 Rd8+=) 27...Rc8 (27...Qd4 28.Qd4 ed4 29.Ne4=) 28.Ne4+= Rc1 29.Rc1 (29.Qf1 Re1 30.Qe1 Nc4+=) 29...Qc1= 30.Kf2 (30.Qf1 Qe3 31.Qf2 Qc1 32.Qf1 Qe3 33.Qf2 Qc1 34.Qf1=) 30...Nf5 (better 30...Qb2!? 31.Ke1 Ne4 32.Qe4 Qa1 33.Kf2 Qa2 34.Kg3 Qa1+=) 31.d6 Qb2 (31...Nd4!?+=) 32.Nd2+- Qd4 (32...Nh6 33.d7 Nf7 34.d8Q Nd8 35.Qd8+-) 33.Qd4+- Nd4 (33...ed4?? 34.d7+-) 34.d7 Ne6 35.Nc4 Kf7 36.Nb6 Ke7 37.Ke3 Nc5 38.Nc4 Kd7 39.Na5 Kd6 40.Nc4 Kd5 41.Nd2 h6 42.Ne4 Na4 43.Kd3 Nb2 44.Kc3 (44.Kc3 Nd1 45.Kd2+-) 1–0. Lerch,Pa (2355) – Schabanel,S (2215), ch–FRA Accession, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

10.Ne5 Qf6 11.Nd7 Bd7 12.Be3 Nh6 (12...Bd6 13.Qd2=) 13.Qh5 g6 (13...Qf7 14.Qe2=) 14.Bd4+= Qe7 (14...gh5 15.Bf6 Rg8 16.0-0=) 15.Qe2 (15.Bg6 hg6 16.Qg6 Qf7 17.Qf7 Nf7 18.Bh8 Nh8=) 15...Bg7= 16.Bg7 Qg7 17.0-0 (17.a3 0-0=) 17...0-0 18.Nd2 Rac8 (18...Qc3 19.Rac1 Qf6 20.Rc7=) 19.c4+= Nf7 (19...Nf5 20.Rad1+=) 20.Nf3 (20.Rfe1 Qf6+=) 20...Kh8 (20...Nd6 21.Rac1=) 21.Rfe1 (21.Rac1 Rc5+=) 21...Nd6 22.cd5 (22.Ne5 dc4 23.Nc4 Nb5 24.Na5 Nd4=) 22...ed5= 23.Qe5 (23.Ne5 Bf5 24.Rad1=) 23...Bb5 (23...Qe5 24.Re5 (worse 24.Ne5 Bb5 25.Bg6 hg6 26.Ng6 Kg7 27.Nf8 Rf8-/+) 24...Rc5 25.Nd4=) 24.Bb5 (24.Qd6 Bd3 25.Qd5 Rcd8 26.Qa5 Be4+-) 24...Nb5+= 25.Qd5 Nc3 (25...Rf5 26.Ne5 Na3 27.Rad1+=) 26.Qa5 Ra8 ½–½. Rahls,Peter (2200) – Haakert,Juergen (2320), Berlin GER, Team Senior Ch, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

10.Ne5 Qf6 11.Nd7 Bd7 12.g3+=.

10.Ne5 Qf6 11.Nd7 Bd7 12.Bg3 Bc5 13.Qh5 Qf7 14.Qf7 Kf7 15.Nd2 Nf6 16.0-0 Rhf8 17.Nf3 Kg8 18.c4 Nh5 19.Be5 Nf4 20.Rfd1 (20.Rad1!?=) 20...Nh3-/+ 21.gh3 Rf3 22.Bg3 Raf8 23.Rd2 b6 24.Bf1 Kh8 (24...Bb4 25.Rdd1=+) 25.a4 R3f5 26.cd5 ed5 27.Rad1 Be6 28.Bg2 d4 29.h4 Bb3 30.Rb1 Bd5 (30...Ba4?! 31.Ra2 Bb5 32.Rb5=) 31.Bd5 Rd5 32.Rbd1 Rf3 33.Rd3 Rd3 34.Rd3 h5 (better 34...Kg8!?-/+) 35.Kg2= Rf5 36.f3 Kh7 37.Bf2 Attacks the isolani on d4 37...Rd5 38.Kg3 Kg6 39.Kf4 Rd7 40.Ke4 Increasing the pressure on the isolated pawn on d4 40...Re7 41.Kd5 Rd7 42.Kc4 Kf5 43.Bd4 Bd4 44.Rd4 Rc7 45.Kd5 (45.Kd3 Rc1+=) 45...Rd7= 46.Kc4 Rc7 47.Kd3 Rc1 48.Kd2 (48.Rd5 Kf4+=) 48...Ra1 49.Ke3 Ra3 50.Kf2 g6 51.Kg3 Ra1 52.Rf4 Ke5 53.Re4 Kf5 54.Rc4 Rg1 55.Kf2 Ra1 56.Kg3 Rg1 57.Kf2 Ra1 ½-½. Salmons,Calum (1940) - Burrows,M (2125), 4NCL Online Div2, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3)

10.Ne5 Qf6 11.Nd7 Bd7 12.Qh5 g6 13.Qe5 Bg7 14.Qc7 (better is 14.Qf6 Nf6 15.Be5=) 14...Rc8-+ 15.Qd6 e5 16.Qf6 Bf6 17.Bd2 Ne7 (17...e4!? 18.Bc2 Bb5-+) 18.f3-/+ Bf5 19.Bf5 gf5 20.0-0 a4 21.Na3 h5 22.Rab1 (22.c4 e4 (worse is 22...dc4 23.Rac1+=) 23.Rad1 Bd4 24.Kh1 Bc5-/+) 22...Kd7 (22...e4 23.Rbc1-/+) 23.Rb4 Ra8 24.Rd1 Rhc8 25.Be1 Kd6 (better is 25...Ke6!?-/+) 26.Nc4= Kc5? (26...Kc7 27.Ne3 d4 28.cd4 ed4 29.Bg3 Kd7 30.Rbd4 Bd4 31.Rd4 Ke6 32.Rd6 Kf7 33.Rd7=) 27.Nb2?? (better is 27.f4 e4 28.Bf2 e3 29.Ne3+-) 27...Kd6 28.Na4 Rc7 29.Bf2 Ke6 30.Bb6 Ra4 31.Ra4 Rc3 32.Ra7 d4 33.Rb7 Kd5? 34.Rc7 Ra3? 35.Bc5 Rc3 36.Be7 Rc7 37.Bf6 Rc4 38.Rb1 e4 39.fe4 fe4 40.b6 d3 41.Bg5 Kd4 42.b7 e3 43.b8Q e2 44.Qf4 Kc3 45.Bf6 (45.Bf6 Kc2 46.Rc1) 1–0. Franck,Boris (2105) – Silvain,Thierry (1930), Lille FRA, 5th Luc Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

10.Ng5 Qf6 11.Be3 e4 12.Bc2 Nh6 13.Nh3 Nf5 14.Bg5 Qf7 15.c4 Bb4 16.Nd2 h6 17.Bf4 (better 17.cd5 hg5 18.Ng5-+) 17...e5 18.cd5 ef4 19.Nf4 (19.0-0 Nb6 20.Ne4 Nd5-+ (20...Qd5?! 21.Nf4 Qd1 22.Rfd1-+)) 19...Nc5 (19...Nh4!? 20.g3 Ne5 21.Kf1-+) 20.0-0 0-0 (20...Nh4 21.Ne2 Bd2 22.Qd2-+) 21.Nc4 Nh4 (better 21...Bc3 22.Rb1 Nd4 23.Nh5-+) 22.Ne6 (22.Ne2-+) 22...Ne6 23.Nb6 (23.de6 Qg6 24.Ne3 Be6 25.Bb3 Nf3 26.Kh1-+) 23...Qg6 24.g3 Nf3 25.Kh1 (25.Qf3 Rf3 26.Na8-+) 25...Qh5 26.h4 (26.Qf3 Qf3 27.Kg1 Ng5 28.h4 Bh3 29.Be4 Ne4 30.Na8 Qg2) 26...Qg4 (26...Qg4 27.Qf3 Qh3 28.Kg1 ef3 29.Bh7 Kh7 30.Na8 Qg2) 0–1. Helin,Mikael (1970) – Brynell,Stellan (2470), Politiken Cup, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 a5 6.b5 Nd7 7.d3 cd3 8.Bd3 f6)

5.c3 Qc7

6.d4 cd3 (=5.c3 Qc7 6.d3 cd3).

6.d3 cd3

7.Bd3 Nc6 8.Qe2 Nb4 9.Bb5 Nc6 10.0-0 Bd7 11.a4 Rc8 12.a5 (12.Nbd2 f6-/+) 12...Be7 (12...a6 13.Bc6 Bc6 14.Rd1-/+) 13.a6 b6 14.c4 dc4 (14...Na5 15.cd5 Nb3 16.d6 Nc1 17.Qd1= (worse 17.dc7 Ne2 18.Be2 Rc7=+)) 15.Rd1 Nb8 16.Nc3 Bc5 17.Be3 (17.Bc4? Bb4 18.Be6 Be6-+ (worse 18...Qc3 19.Bd7 Nd7 20.e6+-)) 17...Ne7 (17...Be7!?=) 18.Bd7 Nd7 19.Nb5 (better 19.Bc5!? Qc5 20.Ne4+-) 19...Qb8= 20.Qd2 (20.Bc5 Rc5 21.Nd6 Kf8 22.Ng5 Ne5 23.Ndf7+-) 20...Nd5=+ 21.Bc5 Rc5 (21...Nc5?! 22.Nd6 Kf8 A) worse 23.Nc4 Nb3 24.Qb2 Na1-/+ (24...Rc4?! 25.Qb3 Qc7 26.Nd4=); B) 23.Nc8 Qc8 24.Qc2=) 22.Nd6 Kf8 (22...Ke7 23.Qg5 Kf8 24.Qg3=+) 23.Qd4 (23.Ng5 c3 24.Qd4 c2=) 23...Rc7 (23...Ke7 24.Nc4 Qc7 25.Nd6=) 24.Ng5= Nc5 25.Nc4?? (better 25.Qc4 h6 26.Nf3=) 25...Nb3-+ 26.Qd3 Na1 27.Nd6 (27.Nd6 Nc2 28.Qf3-+) 1–0. Van Vuure,Joris – De Winter,R, NLD–chT9596, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

7.Bd3 Nc6 8.Qe2 Nb4 9.Bb5 Nc6 10.0-0 Nge7 11.Ba3 g6 (11...Bd7 12.Bd6 Qa5 13.c4=+) 12.c4 Nf5 (12...a6 13.Bd6 Qd7 14.Bc6 bc6 15.Nc3=) 13.Bf8 Kf8 14.cd5 ed5 15.Nbd2 (15.Nc3 Be6 16.Rfd1 d4=) 15...a6 (15...Nfd4 16.Qd3 Bf5 17.Qa3 Qe7 18.Qb2 Nb5 19.Qb5-/+) 16.Ba4 (16.Bc6 bc6 17.Rac1 Kg7=) 16...b5=+ 17.Bb3 Be6 18.Rac1 (18.a4 Ncd4 19.Qd1 Kg7=+) 18...Rc8-/+ 19.Rc5?? (better 19.Qd1-/+) 19...Ncd4-+ 20.Nd4 Nd4 21.Qe3 Qc5 22.Nf3 (22.Qg5 Ne2 23.Kh1 Qd4-+) 22...Nf5 (22...Nb3 23.Qh6 Kg8 24.ab3-+) 23.Qg5 (23.Qf4 h6-+) 23...Qe7 0–1. Martin Ares,Miguel Angel (1735) – Lopez Pajuelo,Aleix (1800), 6th Santa Eulalia de Roncana Spain, Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

7.Bd3 Nd7 8.0-0 g6 9.Na3+- a6 (9...Ne5? 10.Nb5 Qb8 11.Ne5 Qe5 12.Re1+-) 10.c4 Bg7? Increases the pressure on e5 (better 10...Ne5 11.Bb2 Bg7 12.Ne5 Be5 13.Be5 Qe5 14.cd5 Qd5+-) 11.cd5+- Ne5 12.Bf4 Nf3 13.Qf3 e5 (13...Qd8 14.de6 Ba1 15.ef7 Kf7 16.Ra1+-) 14.Rac1 Qd8 15.Rfe1 f6 (15...Ne7 16.Be5 0-0 17.Bg7 Kg7 18.Bc2+-) 16.Nc4 Ne7 17.d6 Nc6 18.d7! Bd7 (18...Bd7 19.Nd6 Double attack; 18...Qd7 19.Nb6 Double attack (19.Nb6 Decoy); 18...Kd7 19.Be5 Combination) 19.Nd6 Ke7 (19...Kf8 20.Nb7 Nd4 21.Qd5+- (21.Nd8?! Nf3 22.gf3 Rd8+-)) 20.Nb7 Qb6 21.Nc5 Nd4 (21...Be8 22.Bc4 Rd8+-) 22.Qd5 Qd6 (22...Be6 23.Ne6 Ne6 24.Rc6 Qc6 25.Qc6+-) 23.Re5!! fe5 24.Bg5 Bf6 25.Bf6 Qf6 26.Qd7 (26.Nd7?! Rac8 27.Re1 Qd6 28.Qd6 Kd6 29.Ne5 Rc7+=) 26...Kf8 27.Qb7 Qd8 (27...Qf4 28.Qa8 Kg7 29.Qb7 Kh6 30.Rf1+-) 28.Bc4 (28.Nd7 Kg8 29.Ne5 Qe8+-) 28...Qe8 (28...Qe7 29.Qa8 Kg7 30.Qa6 Rf8+-) 29.Nd7 (29.Na6?! Rd8+-; 29.Ba6?! Rd8+-) 29...Kg7 30.Ne5 Kf6 (30...Kh6 31.Ng4 Kh5 32.Qd5 Nf5 33.Qd2+-) 31.Ng4 Kf5 (31...Kg5 32.Qd5 Nf5 33.Qd2 Kg4+-) 32.Qd5 Kg4 (32...Qe5 33.Qe5 Kg4 34.h3 Kh4 35.g3 Kh3 36.Qd4 Rhe8 37.Bf1) 33.h3 Kh4 34.g3 Kh3 35.Qh1 Kg4 36.Qh4 (36.Qh4 Kf5 37.Qf4) 1–0. Carrascoso Morales,A (2210) – Kraljevic,I (2115), European Amateur U2300, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Qc7)

7.Bd3 Nd7 8.Qa4=.

7.Bd3 Ne7 8.0-0+= Ng6 9.Qe2 Be7 10.a4 Bd7 11.b5 a6 12.Na3 Ba3 13.Ba3 ab5 (better 13...Qc3!? 14.Qe3 f5+=) 14.ab5+- (14.Bb5?! Bb5 (14...Qc3?? 15.Rfc1 Qa1 16.Ra1+-) 15.Qb5 Qd7+=) 14...b6 (14...Qc8 15.Bd6 Na6 16.ba6 ba6 17.Ba6 Qc3 18.Qa2+-) 15.g3 (15.Bd6 Qb7+-) 15...f6 (15...Qb7 16.Bd6+-) 16.Bd6 (16.ef6 gf6 17.c4 Ra5 18.cd5 Kf7+-) 16...Qb7 17.Ra8 Qa8 18.ef6 gf6 19.Nd4 Kf7 20.Qh5 (20.f4 f5+-) 20...Kg7 21.f4 Qa5 22.Bb4 Qa7 23.Re1 (23.f5 ef5 24.Bf5 Re8+-) 23...Re8 24.f5 ef5 25.Re8 Be8 26.Nf5 Kh8 27.Ne7 Kg7 28.Bg6 hg6 29.Qd5 Qa1 (29...Bf7 30.Qd1+-) 30.Kg2 (30.Kf2 Bf7 31.Qb7+-) 30...Qb2 31.Kf3 Bf7 32.Qd8 Qh2 (32...Qb1 33.Qd2=) 33.Qb8+= Qh1 34.Kf2 Qh2 35.Ke3 Qg1 36.Kf3 (36.Kd3!? Qd1 37.Ke3=) 36...Qf1 37.Ke3 Qe1 (37...Bc4 38.Nf5 gf5 39.Qb7 Kg6-+) 38.Kf3 (38.Kd3 Qd1 39.Ke3 Bc4 40.Nf5 gf5 41.Qc7 Bf7=+) 38...Qf1 39.Ke3 Bc4 40.Ng6 (40.Nf5 gf5 41.Qb7 Kg6 42.Qf3 Qe1 43.Kd4-+) 40...Qe2 41.Kf4 Qf2 (better 41...Bd5 42.Qg8 Bg8-+) 42.Ke4= Qe2 43.Kf4 Kg6 (better 43...Bd5 44.Qg8 Bg8-+) 44.Qd6=+ Qf2 45.Ke4 Qe2 (45...Qg2 46.Kf4 Be2 47.Ke3-/+) 46.Kf4=+ Bd3 (better 46...Qf1 47.Ke3 Qg2=+) 47.Qd5?? (better 47.Qd4=) 47...Qd2-+ 48.Kf3 0–1. Lauche,Christoph – Jensen,Le1 (2030), Sparkassen Open, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

7.Bd3 f6 8.Bf4+= f5 (8...Nd7 9.0-0+=) 9.h4 (9.Nd4 Bd7+=) 9...a5 10.b5 (10.ba5 Ra5 11.Nd4 Bd7=) 10...Nd7 11.a4 (11.0-0 Ne7=) 11...Nc5 (11...Ngf6 12.0-0=) 12.0-0 (12.Be2 Ne7=) 12...Ne7 13.h5 g6 14.Nd4 (14.Be3 gh5 15.Bc5 Qc5=) 14...b6 (14...Nd3 15.Qd3 gh5 16.Qh3=+) 15.Re1 (15.Bc2 gh5 16.Qh5 Ng6=) 15...Nd3 (15...gh5 16.Qh5 Ng6 17.Bc2=) 16.Qd3 gh5 17.Qh3 Ng6 18.Qh5 Qf7 19.Bg5 (19.Bh6 Be7=) 19...Bg7 20.Bf6 Bf6 21.ef6 0-0 22.Nd2 (22.Qf3 Qf6 23.Ra2 Bd7=+) 22...Qf6 23.N2f3 Ra7 24.Qh2 f4 25.Nc6 (25.Qh5 Rc7=+) 25...Rg7 26.Nce5 (26.Rac1 Bb7 27.c4 d4=) 26...Ne5-/+ 27.Re5 Kh8 (27...Bd7 28.Rae1-/+) 28.Rae1 (28.Kh1!?=+) 28...Rfg8-/+ 29.Nd4 (29.Rd1!?-/+) 29...Qg6-+ 30.Ne6? (30.Qh3 Qg2 31.Qg2 Rg2 32.Kf1 Rg1 33.Ke2 Re1 34.Ke1 Kg7-+) 30...Be6 (better 30...Qg2 31.Qg2 Rg2 32.Kh1 R2g4-+ (32...Rf2?! 33.Rg1 Be6 34.Re6-+)) 31.Re6 Qg2 32.Qg2 Rg2 33.Kh1 Rf2 34.Re8? (34.Rb6!? Ra2 35.Rh6 Ra4 36.Re7 Ra1 37.Kh2 Ra2 38.Kh1-/+) 34...Re8 (34...Ra2 35.Rg8 Kg8 36.Re6 Ra4 37.Rb6-+) 35.Re8 Kg7 36.Rd8 0–1. Blimke_Deren,D (2230) – Von Wantoch_Rekowski,D (2065), Bundesliga, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Bd7

6.a4 Qc7 7.d4 cd3 8.Bd3 Nc6 9.Bf4 f6 (9...Nge7 10.Bg3=) 10.Qe2 (10.0-0+=) 10...g5? (better 10...Rc8!?=) 11.Bg3+- g4 12.ef6 gf3 (12...Bd6 13.f7! Kf7 14.Ng5 Ke7 15.Qg4+- (worse 15.Bh7 Nf6 16.b5 Ne5=)) 13.f7! (13.Bc7 fe2 14.b5 Nd8-+) 13...Ke7 (13...Kf7 14.Bc7 Zwischenzug) 14.fg8Q (worse 14.Bc7 fe2 15.fg8B Rg8+-) 14...Rg8 15.gf3 (15.Qf3 Ne5 16.Qe2 Nd3 17.Qd3 Qc4 18.Qh7 Rg7 19.Qh4 Qh4 20.Bh4 Kf7+-) 15...Qc8+- 16.Bh7 Rg7 (16...Rh8 17.Bd3+-) 17.Bd3+- Rf7 18.Ra2 Bg7 19.Rc2 Qh8 20.f4 Raf8 (20...Kd8 21.b5 Ne7 22.h4+-) 21.b5 Na5 22.Qg4 (22.h4 Rc8+-) 22...Ke8 (better 22...Rg8!? 23.Qf3 Rc8+-) 23.Bg6+- e5 (23...Nc4 24.f5 (worse 24.Bf7 Rf7 25.Qe2 a6+-) 24...e5 25.Qd1+- (25.Bf7?! Rf7 26.Qd1 Bf5+-)) 24.Qe2 (24.Qd1 Bf5 25.Bf5 Rf5 26.fe5 Qg8+-) 24...Bf5 25.Bf7 (25.Bf5!? Rf5 26.fe5 Nc4+-) 25...Rf7 26.fe5 Be4 27.Rg1 Bc2 28.Qc2 Be5 29.Be5 Qe5 30.Qe2 Qe2 31.Ke2 Ke7 32.Ke3 (32.Rg8 Kd6+-) 32...Kd6 (32...Nc4 33.Kd4+-) 33.Nd2 Rh7 34.Rg2 (34.Nf3 Kc5 35.Kf4 Rf7 36.Kg4 Re7+-) 34...Kc5 35.Rg4 (35.f3 Rh4+-) 35...Rh2+- 36.Rd4 (36.f3 Rh1+-) 36...Rh3 37.f3 Rh5 (37...a6 38.ba6 ba6 39.Rg4+-) 38.Kf4 (38.Rg4 Rh1+-) 38...Rh4 39.Ke5 Rh5 40.Ke6 a6 (40...Rh6 41.Kf5+-) 41.ba6 (better 41.f4!? ab5 42.ab5 Rh6 43.Ke5 Kb5 44.Rd5 Kb6 45.f5 Nc6 46.Kf4+-) 41...ba6+- 42.f4 (42.Rd3 Rh6 43.Kf5 Rh5 44.Kg4 Rh1+=) 42...Rh6+= 43.Kf7 (43.Kf5!?+=) 43...Rh3= 44.f5 Rc3 45.Rf4 ½–½. Weng,Annegret (2125) – King,Aylson, EU–ch U20 Girls, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.Bd3 Qc7 8.0-0 Nc6 9.Re1 Nge7 10.Bf4 (10.Na3 a6+=) 10...Ng6= e5 seems the pivot of the position 11.Bg3 Be7 12.h4 a6 13.h5 Nf8 14.h6 (14.Nbd2 Rc8+=) 14...gh6= 15.Qd2 Ng6 16.Qh6 0-0-0 (16...Bf8 17.Qh5=) 17.a4+= White plans b5 17...d4 (better 17...Bf8!? 18.Qh5 Nce7+=) 18.b5+- Nb8?? (better 18...dc3 19.ba6 Qa5+-) 19.Nd4 (worse 19.cd4 Nc6 20.Rc1 Qa5+-) 1–0. Kieffer,C (2160) – Equey,D (1795), Open A Le Touquet FRA, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.Bd3 Qc7 8.0-0 Nc6 9.Re1 g6 10.a4 Bg7 Increases the pressure on e5 11.Qe2 a6 12.Ba3 White intends b5 12...Bf8 (12...Nce7 13.b5+-) 13.Nbd2 (13.b5 Nb8+-) 13...a5 (13...Nb8!?+-) 14.b5+- Ba3? (better 14...Nd8+-) 15.bc6 (15.Ra3?! Nce7+-) 15...Bb2 16.cd7 Kd7 (16...Kf8 17.Rab1 Bc3 18.Rec1+-) 17.Ra2 Qc3 (17...Bc3 18.Rc2 Kd8+-) 18.Nb1 Qc7 19.Rb2 Ne7 20.Na3 h5 (20...Nf5 21.Nb5 Qc5 22.Rc2+-) 21.Nb5 Qb8 (21...Qc5 22.Nd6 Rhb8 23.Nb7 Rb7 24.Rb7 Kd8 25.Ng5+-) 22.Nd6 1–0. Llaneza Vega,Marcos – Menendez Villar,Santiago, Asturias–ch U14, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.Bd3 Be7 8.0-0 a6 9.Na3 Nc6 10.Nc2 (10.b5 Na5 11.ba6 Nh6+/-) 10...g5 (10...Nh6!?+/-) 11.Re1 h5 12.a4 (12.Ncd4 Nh6+/-) 12...g4 (12...Nh6 13.b5 Na5 14.Nfd4+/-) 13.Nfd4 Nd4 (13...Qc7 14.Nc6 bc6 15.Rb1+/-) 14.Nd4+- Bg5 15.b5 (15.f4 gf3 16.Qf3 Bc1 17.Rac1 Qg5+-) 15...Bc1+/- 16.Qc1 Ne7 17.Qe3 (17.Qg5 Qc7+/-) 17...ab5 18.Bb5 (18.ab5 h4+/-) 18...Rc8 (18...Nc6 19.Reb1+/-) 19.Bd7 (19.Reb1 Qc7+/-) 19...Kd7 (19...Qd7 20.Rab1+/-) 20.Rab1 Qc7 (20...b6 21.Rb5+/-) 21.Qf4 Rhf8 (21...Rh7 22.Qg5 b6 23.Nb5+/-) 22.Qg5+- b6 23.Nb5 Qc4 (23...Qc5 24.Qh5 g3 25.hg3+/-) 24.Nd6 Qa4 (24...Qc3 25.Nc8 Rc8 26.Qh5+-) 25.Nc8 Rc8 26.Rb6 Qa7 (26...Ng6 27.Rb7 Rc7+-) 27.Reb1 (better is 27.Rd6 Ke8 28.Qg7+-) 27...Rc7 (27...Qa5 28.Qf6 Rc6 29.Rc6 Nc6 30.Qf7 Ne7+-) 28.Qh5 (28.Qh5 Ng6 29.Qg4+-) 1–0. Natsidis,Christoph (2195) – Horyna,Josef (1890), Open, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 b5 7.g3 (7.Be2 a5 8.ba5 Qa5=) 7...h6 8.Bg2 Nc6 (8...a5 9.ba5 Qa5 10.0-0=) 9.a4 ba4 10.Na3 (10.Ra4!? a5 11.ba5 Ra5 12.Ra5 Na5 13.0-0=) 10...a5=+ 11.b5 Na7 12.Rb1 (12.Qa4 Ba3 13.Ba3 Nb5-/+) 12...Rb8 13.Qa4 Ba3 14.Qa3 Rb5 15.Ra1 Ne7 16.Nd2 0-0 17.Qa2 Nec6 18.h4 (18.Ba3 Re8=+) 18...Qc7 19.Nf3 (19.Ba3 Ra8-/+) 19...Rb3 20.Bh6? (better 20.Qc2-/+) 20...Rfb8 (better 20...gh6 21.Qd2 Kg7-+) 21.Qd2 (21.Bd2=+) 21...Qd8?? (better 21...gh6 22.Qh6 Bc8-/+ (22...Rc3?! 23.Qg5 Kf8 24.Qh6 Ke8 25.Qh8 Ke7 26.Qf6 Ke8 27.Qh8 Ke7 28.Qf6 Ke8 29.Qh8=)) 22.Bg5= Ne7 (better 22...Qe8=) 23.Bf6 (23.h5!?+=) 23...Qf8 (23...gf6 24.ef6 Ng6 25.h5 Qf6 26.hg6 fg6 27.Qh6= (worse 27.Ra5 Rb1 28.Ke2 R1b2 29.Ra7 Qf5-/+)) 24.Qg5 (24.Be7 Qe7 25.Qc2=+) 24...Nf5 (24...Nec6 25.Qg4=+) 25.h5 (25.g4 Nh6 26.Be7 Qe8=) 25...Nh6 (25...Kh7 26.g4 gf6 27.Qf6 Rb1 28.Rb1 Rb1 29.Kd2 Rh1 30.Bh1-/+) 26.g4?? (26.Be7 Qe8=) 26...Nb5 (better 26...Nc6-/+) 27.Qf4?? (better 27.Be7 Qe8 28.Rh3=) 27...Nc3 (27...gf6 28.Qf6 Nc3 29.Nd2-+) 28.Nd2 Ra3 (28...gf6 29.Ra5 fe5 30.de5-+) 29.Rc1? (better 29.Ra3 Qa3 30.f3-+) 29...Na2 30.Ra1 c3 31.g5 Nb4 (31...cd2 32.Qd2 Nc3 33.Rc1-+) 32.0-0 Ra1 (32...gf6?! 33.Ra3 Nd3 34.Qf3 Qa3 35.gh6=) 33.Ra1 cd2 (better 33...gf6 34.gh6 cd2 35.Qf6 Nc2-+) 34.Kh2 (34.Bg7 Kg7 35.gh6 Kh7 36.Qd2 Qh6 37.Qd1-+) 34...Nf5 35.Rh1 (35.Bg7 Qg7 36.Qd2 Nc6-+) 35...gf6 36.gf6 Qh6 37.Qf3 (37.Qh6 Nh6 38.Rd1 a4 39.Rd2 a3-+) 37...Kh8 38.Bh3 Rg8 39.Bg4 Nd4 40.Qd1 Qf4 41.Kh3 Nd3 (41...Nd3 42.Rh2 Rg4 43.Qg4 Qg4 44.Kg4 d1Q 45.Kh3 Qf3 46.Kh4 Nf5 47.Kg5 Qf4) 0–1. Helin,Mikael – Schweitz,Dan, Hallsta op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.c3 Ne7

6.a4 Ng6 7.d4 cd3 8.Bd3 a5 9.h4 (9.b5 Nd7 10.Bg6 hg6=) 9...Qc7=+ 10.Bg6 hg6 11.b5 Nd7 12.Qe2 Nc5 13.Nbd2 (13.Ba3 Be7=) 13...Ne4 (13...g5 14.Ng5 Qe5 15.Qe5 Nd3 16.Ke2 Ne5 17.Ba3=+) 14.Bb2 Nc3 (14...b6!?=) 15.Qd3+= Ne4 16.Ne4 de4 17.Qe4 Bb4 18.Ke2 Qe7 (18...Bd7 19.Rhc1 Qb8 20.Ba3+-) 19.Rac1 Rb8 20.Rhd1 0-0 21.Qc4 (21.Qg4 Rd8+-) 21...b6 22.Qc7 Bb7 23.Qe7 Be7 24.Rd7 Bf3 25.Kf3 Bh4 26.Rc6 (26.Bd4 Bg5 27.Rc2 Rfe8+-) 26...Rfd8 27.Rd8 (27.Rdd6!?+-) 27...Bd8+= 28.Bd4 Kf8 29.Kg4 Ke8 (29...Ke7 30.Kf4+=) 30.f4 Kd7 31.Kf3 Bc7 32.g4 Kc8 33.Rc1 Kb7 34.Rh1 Rg8 35.Rh7 Bd8 36.Ke4 Be7 37.f5 (37.g5 Bb4=) 37...gf5 38.gf5 ef5 39.Kf5 Bc5 40.Bc3 Kc8 (40...Kb8 41.e6 g6 42.Kf6 fe6 43.Ke6 Re8 44.Kf6=) 41.e6 fe6 42.Ke6 g5 43.Be5 Re8 44.Kf5 Re7 45.Rh8 Kd7 46.Rg8 Rf7 47.Ke4 Rf2 48.Rg5 Ra2 49.Rg7 Ke6 50.Rg6 Kf7 51.Rg7 Kf8 52.Kd5 Ra4 53.Ke6 (53.Rb7 Ra2=) 53...Rh4 (53...Ra2 54.Rh7 Ke8 55.Rh8 Bf8 56.Kd5=) 54.Rb7+= Rh6 55.Bf6 Kg8 56.Rg7 (56.Rb8 Bf8=) 56...Kf8 57.Rb7 Kg8 58.Rg7 Kf8 59.Rb7 (59.Rd7 Kg8=) 59...Kg8= 60.Rb8 Bf8 61.Rb6 (61.Kf5 a4=) 61…a4 ½–½. Lamahewa,C (1825) – Galappaththi,Chinthaka Anuruddh (2080), Sri Lanka National Chess Championship, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

6.d3 Qc7 7.dc4 dc4 8.Na3 Nbc6?? 9.Nb5+- (9.Nc4?! Nd5 10.Nd6 Bd6 11.ed6 Qd6+-) 9...Qb6 (9...Qb8 10.Nd6 Kd7 11.Nf7 Nd5 12.Nh8 Ne5+-) 10.Nd6 (10.Nd6 Kd7 11.Nc4 Ke8 12.Nb6 ab6 13.b5+-) 1–0. Jongsma,Daan – Beals,David, Haarlem op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

6.d3 Qc7 7.dc4 dc4 8.Na3 Bd7 9.Nc4 Nd5+-.

6.d3 Qc7 7.dc4 dc4 8.Na3 Ng6 9.Nc4 Bd7 (9...Be7 10.Qd4+-) 10.Bb2 (10.a4 Be7+-) 10...Nc6 (10...Be7 11.Nd6 Kf8 12.Be2+=) 11.Nd6 Bd6 12.ed6 Qd8 13.b5 Nce5 (13...Na5 14.c4 f6 15.Bc3+-) 14.Ne5 Ne5 15.c4 Qa5 (15...Qg5 16.Qd4 f6 17.Qe4+-) 16.Qd2 Qd2 17.Kd2 Ng4 (17...f6 18.Be5 fe5 19.Bd3+-) 18.Bg7 Rg8 19.Bd4 e5 20.Re1 (20.h3 ed4 21.hg4 Be6+-) 20...f6? (20...Be6 21.Bc5 b6+-) 21.f4 0-0-0 22.fe5 fe5 23.Ba7 Be6 (23...Rg6 24.c5+-) 24.h3 (24.c5 Bd5+-) 24...Rd6 25.Kc3 (25.Kc1 Nf6 26.Bc5 Rd7 27.Re5 Re8+-) 25...Nf6 26.g4 Nd7 (26...b6 27.c5 (worse 27.Re5 Nd7 28.Rh5 Rg7+-) 27...bc5 28.Bc5+-) 27.Be3 (27.c5!? Rd5 28.Bc4 Re8+-) 27...b6 (27...Kb8 28.c5 Rc8 29.Kb4+-) 28.Be2 (28.Bd3 Rh8+-) 28...Nc5? (28...Nf6+-) 29.Bc5 bc5 30.Bd3 Rgd8 31.Re3 (31.Bf1 Rf8 32.Re5 Rf3 33.Kc2 Rf2 34.Kb3 Kd7+-) 31...Rd4 32.Be2 (32.Bh7?! Rc4 33.Kb2 Rd2 34.Ka1 Rb4+-) 32...e4 33.Rf1 (33.a4!? R8d7+-) 33...Kc7 34.a4 (34.Rf4 Ra8 35.Rfe4 Ra3 36.Kb2 Re3 37.Re3 Bc4 38.Bc4 Rc4 39.Re7 Kb6 40.Rh7 Kb5 41.Rb7 Kc6+-) 34...Ra8 35.Kb3 Rad8 (35...Kd6+-) 36.Rf4 Re8 37.a5 Bg8 (37...Kd6 38.a6+-) 38.Rf5 (38.Rf6 Be6+-) 38...Kd6 39.a6 Be6 40.Rh5 Re7 (40...Bg8 41.Kc3 Ra8 42.Rg3+-) 41.Rc3 (41.b6!? Bc8 42.a7 Bb7+-) 41...Ra7 (41...Rd2 42.Rc2 Rc2 43.Kc2+-) 42.Rc2 e3 (42...Bf7 43.Rh6 Bg6 44.h4+-) 43.Rc3 Bf7 (43...Re7 44.b6 Bc8 45.Rh6 Kd7 46.b7 Bb7 47.ab7+-) 44.Rh6 Ke5 (44...Bg6 45.Re3 Kc7 46.Re6+-) 45.Re3 Re4 46.Re4 Ke4 47.Rd6 Ke5 (47...Ke3 48.Bd3 h5 49.g5+-) 48.Rb6 (48.b6 Ra6 49.b7 Rd6+-) 48...Bg6 49.Bf3 Rd7 50.Bd5 Be4 (50...Bf7+-) 51.Re6 (51.Re6 Kf4 52.Re4 Kg3 53.b6+-) 1–0. Zimniok,L (2060) – Sudolsky,Jan, 14th Orlova Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

6.d3 cd3 7.Bd3 Nd7 8.0-0 Qc7 9.Re1 Ng6 Increases the pressure on e5 10.Qe2 Be7 11.h4 (better 11.Bd2+-) 11...b6? (better 11...Bh4 12.Bd2 a6=) 12.h5+- Ngf8 13.Na3 a6 14.Nc2 Bb7 15.Ncd4 White prepares b5 15...g6 (15...Qc3 16.Bd2 Qa3 17.Rec1+-) 16.h6 Qd8 17.b5 a5 (17...Nc5 18.ba6 Ba6 19.Ba6 Ra6 20.Nc6+-) 18.Nc6 Qc7 (18...Qc8 19.Ne7 Ke7 20.Ba3 Nc5 21.Ng5+-) 19.Ne7 Ke7 20.Bg5 Ke8 21.Rac1 Nc5 (21...Rc8 22.c4 Nc5 23.cd5 ed5 24.Bf6+-) 22.c4 Nfd7 23.cd5 Bd5 24.Bc4 Bb7 (24...Be4 25.Nd2 Bb7 26.Qe3+-) 25.Nd4 Rc8 26.Be6 (better 26.Qe3+-) 26...fe6+- 27.Ne6 Qe5?? (better 27...Ne6 28.Rc7 Rc7+-) 28.Nc5+- Rc5 29.Rc5 bc5 30.Qe5 Ne5 31.Re5 Kf8 (31...Kd7 32.Re7 (32.Rc5?! Rc8 33.Re5 Re8 34.Re8 Ke8+-) 32...Kc8 33.b6+-) 32.Rc5 Rg8 (32...Kf7 33.Rc7 Ke6 34.Rb7 Kd6+-) 33.Rc7 Bd5 34.b6 1–0. Kadas,Gabor (2310) – Horgosi,O, Jaszbereny, 1977. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.Bd3 Nd7 8.0-0+= Ng6 9.Re1 Qc7 Will e5 fall? 10.Qe2 Nb6 (10...Be7 11.Bd2+=) 11.h4 Bd7 12.h5 Ne7 13.Nd4 White plans b5 (13.Na3 a6+/-) 13...a6+= 14.b5 ab5? (14...h6 15.a4+/-) 15.Nb5 (better is 15.Na3!? Qc3 16.Bb2+/-) 15...Bb5+= 16.Bb5 Nc6 17.a4 Bc5 18.Nd2 0-0 19.Nb3 Be7 20.Nd4 (20.h6 g6+=) 20...Nd7 (20...Bb4 21.Bd2 (worse is 21.cb4 Nd4 22.Qd3 Nc2-/+) 21...Nd4 22.cd4 Bd2 23.Qd2+=) 21.Nf3 (21.h6 g6+= (21...Nde5? 22.Bf4 Bd6 23.Bc6 bc6 24.Be5 Be5 25.Qe5 Qe5 26.Re5+-; worse is 21...Nce5 22.hg7 Kg7 23.Bd7 Nd7 24.Qe6 fe6 25.Ne6 Kf7 26.Nc7+/-)) 21...Na7 22.Bd3 Nc5 (22...Nc6 23.Bc2+=) 23.Bc2 Nc8 (23...f5 24.ef6 Bf6 25.Ba3 Bc3 26.Rac1 Rf3 27.Bc5+- (27.Qf3 Be1 28.Re1 Rc8+-)) 24.Nd4 Nb6 Increasing the pressure on the isolated pawn on a4 25.Nb5 (25.Qg4 Kh8+= (25...Nba4?? 26.Bh6 g6 27.hg6 fg6 28.Ra4+-)) 25...Qd7 26.Be3 (26.Qg4 f5 27.ef6 Rf6+/-) 26...Nc4 27.Bc5 (27.h6 A) worse is 27...Ne3 28.hg7 Kg7 29.Qe3+/- (29.fe3?! f5=); B) 27...g6=) 27...Bc5= 28.Red1 (28.Qd3 g6=) 28...Qe7+= 29.Rd3 (29.Qd3 g6 30.Qg3 f6 31.hg6 fe5-+) 29...Qg5 (29...f6 30.ef6 Rf6 31.Nd4-/+) 30.Re1+= Nb2 (30...f6 31.ef6 Rf6 32.Nd4+=) 31.Rh3 (31.Rf3 A) 31...Qh5 32.Nc7 Nc4 33.Rh3 Qe2 34.Bh7 (34.Re2?! g6=) 34...Kh8 35.Re2+-; B) 31...Na4 32.Nd6 Bd6 33.ed6 Nc5+= (33...Qh5 34.Qe3 h6 35.Qd4+-)) 31...Nc4 (31...Na4 32.Qd3 g6 33.Qe2+=) 32.Qd3 (32.Rd3 f6 33.ef6 Rf6+=) 32...g6 33.hg6 (33.Qe2 Rfc8+=) 33...fg6 34.Rf1? (better is 34.Nd4 Ra6 35.Rg3-/+) 34...Rf7 (better is 34...Nd2!? 35.Rg3 Qe5 36.Rg6 hg6 37.Qd2 Rf2 38.Rf2 Be3-+) 35.Rg3 0–1. Simon,Laurent (1980) – Bleuzen,Cedric (2010), Montdidier FRA, CNCF Ch, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d4 cd3 (=6.d3 cd3).

6.d4 Nf5 7.a4 Be7 8.g4 (8.Be2 0-0=) 8...Nh4 9.Nh4 Bh4 10.Bg2 Nd7 11.0-0 Be7 12.f4 g6 (12...0-0!?=) 13.f5+= Bg5 (13...gf5 14.gf5 Nb8 15.f6+-) 14.Qf3 (14.f6!? Bc1 15.Qc1+-) 14...gf5+= 15.gf5 Nf8 16.Na3 a6 17.b5 Bc1 18.Rac1 Qa5 (better 18...Qe7!? 19.Qg3 h5+= (worse 19...ef5 20.Bd5 Be6 21.Be6 Qe6 22.Qf3+-)) 19.ba6+- ba6?? (better 19...Ra6 20.Rb1 Rg8+-) 20.Nc4!+- Qc7 (20...dc4 21.Qc6 Double attack (21.Qa8 Pinning; 21.Qa8 Deflection)) 21.Nd6 Ke7 22.fe6 (22.fe6 Be6 23.Qf6 Kd7 24.Qh8+-) 1–0. Nieuwelink,Kees (2225) – Bok,R, Vlissingen op, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

6.d4 Nf5 7.g3 Nc6 8.Bg2 a5 (8...h5!?=+) 9.b5+= Na7 10.a4 f6 (better 10...Bd7!?+=) 11.0-0 fe5 (better 11...h5!?+/-) 12.Ne5+- g6 13.h4 (13.Qe2 Be7+-) 13...Bd6 14.Qe2 Be5 (14...Qc7 15.Ba3+-) 15.Qe5 (worse 15.de5 0-0+-) 15...Rf8 (15...0-0 16.Nd2+-) 16.Re1 Ne7 (16...Kf7 17.g4 Ng7 18.Bg5+-) 17.Bg5 Rf7 (17...Kf7 18.Qf6 Ke8 19.Qg7+-) 18.Bh3 Qb6 (18...h5+-) 19.Qh8 Rf8 20.Qh7 Qd6 (20...Rf7 21.Qh6 Bd7 22.h5+-) 21.Bh6 Rf7 (21...Bd7 22.Bf8 Kf8+-) 22.Qh8 Kd7 23.Be6 Qe6 24.Re6 Ke6 25.Qe5 Kd7 26.Bg5 (better 26.Nd2 Kd8 27.Bg5 Bd7 28.Qd5 Ke8+-) 26...Ke8 27.Nd2 Bf5 28.Be7 Re7 29.Qh8 Kf7 30.Qa8 b6 31.Nf3 Be4 32.Re1 (32.Ng5 Kg7 33.Qd8 Nc8 34.Re1 Ra7 35.Qc8 Re7 36.f3 Ra7 37.Ne6 Kf7 38.fe4 g5 39.Rf1 Kg6 40.Qh8 Rh7 41.Qf6 Kh5 42.Qg5) 32...Kf6 33.Ng5 Kg7 (33...Nc8 34.Qc8 Kg7 35.f3 Ra7 36.fe4 Rc7 37.Qc7 Kg8 38.Rf1 de4 39.Qh7) 34.f3 Kf6 (34...Nc6 35.bc6 Bc2 36.Re7 Kf6 37.Qf8) 35.Qf8 Rf7 36.Qf7 1-0. Salmons,Calum (1795) - Ratnesan,Radha, Hastings Masters, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.d3 cd3 7.Bd3 Ng6

8.0-0 Nd7 9.Re1 Qc7 10.Na3 a6 (10...Nde5? 11.Ne5 Ne5 12.Nb5+-; 10...Nge5?? 11.Ne5 Ne5 12.Nb5+-) 11.Bd2 (better 11.Bg6!? hg6 12.Qd4=) 11...Nde5 (11...Nge5 12.Ne5 Ne5 13.Qe2-/+) 12.Ne5 (12.Bg6 Nf3 13.Qf3 hg6=+ (worse 13...fg6 14.c4+=)) 12...Ne5-/+ 13.Bf4 Bd6 14.Qa4 (14.g3 Qc3 15.Be5 Be5-+) 14...Bd7-+ 15.Nb5 Bb5 16.Bb5 Ke7 17.Be2 Rhc8 18.Qc2? (better 18.Bd2!?-+) 18...Qc3 19.Qh7 (19.Qb1 Kf6-+) 19...Rh8 20.Bg5 (20.Qb1 Nf3!! 21.Bf3 Bf4 22.Qb3 Bh2 23.Kf1 Qb3 24.ab3-+) 20...Kd7 21.Qb1 Rh2 22.Kh2 (22.Bf4 Nf3! 23.Bf3 Bf4 24.Qb3-+) 22...Nf3 23.Kh3 Rh8 24.Kg4 (24.Qh7 Rh7 25.Bh6 Rh6 26.Kg4 f5) 24…f5 (24...f5 25.Qf5 Nh2; 24...Nh2) 0–1. Karlicek,Pavel (2105) – Vybiral,Zdenek (2175), CZE–ChT2A, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7 6.d4 cd3 7.Bd3 Ng6)

8.0-0 Be7 9.Na3 Nc6 10.Re1 a6 (10...0-0 11.Nb5=) 11.Nc2 0-0 12.Bd2 Qc7 e5 draws heavy fire 13.Qe2 Bd7 14.Ncd4 Rfe8 15.Rac1 Rac8 16.Nc6 Bc6 17.Bg5 (17.Nd4 Ba4+=) 17...Qd8 (17...Bg5 18.Ng5 Bb5 19.Bb5 ab5 20.g3=+) 18.Qd2 Nh4 19.Bh4 Bh4 20.Nh4 Qh4 21.Re3 f5 22.Rce1 (22.ef6 Qf6 23.Rf3 Qe7=) 22...Qg5 (22...d4 23.cd4 Qd4 24.Rg3=+) 23.Qe2 Rc7 (23...d4 24.Rg3 Qf4 25.c4=) 24.Rg3= Qe7 25.Qh5 (25.Qd2 Ba4=) 25...Qf7 (25...Rec8!? 26.a3 Bb5 27.Bb5 ab5-/+) 26.Qg5 (26.Qd1 Rec8 27.Qd2 Ba4=+) 26...Qe7 (26...Ba4 27.Qd2=+) 27.Qh5 (27.Qd2 Ba4=) 27...Qf7 (27...Rec8!?-/+) 28.Qg5= Qe7 ½–½. Xu,Xianliang (1870) – Kornblum,Dittmar (1730), Rostock Germany, U8, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

8.0-0 Be7 9.Bb2 Nd7 10.Bg6 hg6 11.a3 Qc7 12.Qe2 b6 (12...g5 13.Re1=+) 13.Nbd2 a5 (13...g5 14.c4 g4 15.Ne1=) 14.Rfe1 (14.Rfc1 Ba6 15.b5 Bb7+=) 14...Ba6 (14...g5 15.Nd4=) 15.Qe3 (15.b5 Bb7=) 15...Rc8 16.Rac1 Qb8 17.Nd4? (better 17.Rb1=+) 17...Ne5!-+ 18.Ne6 (18.Qe5 Bd6 Decoy) 18...Nd3 (18...Nc4!? 19.Ng7 Kf8 20.Qe7 Kg7-+) 19.Nf4-/+ Ne1 20.Re1 Qd6 21.Nf3 (21.Qe5 Kf8 22.Qe7 Qe7 23.Re7 Ke7 24.Nd5 Ke6 25.Nb6 Rhd8-+) 21...0-0 (21...Bc4 22.Bc1-/+) 22.Nd5 (22.ba5 Rfe8 23.Qb6 Qf4 24.Qa6 Bf6-/+) 22...Qd5-/+ 23.Qe7 Bb5 (23...Qb3 24.Bc1-/+) 24.Qh4 (better 24.Qe5!? Qe5 25.Re5=+) 24...Rfe8-/+ 25.Ra1?? (25.Re8!? Re8 26.h3-+) 25...Re4 (25...Qb3 26.a4 Qb2 27.Rd1 Ba4 28.Rf1-+) 26.Qg3?? (26.c4 Rec4 27.Nd4 ab4 28.a4-+) 26...Qb3 27.Ng5 (27.Qd6 Qb2 28.Rd1-+) 27...Qb2 28.Rd1 Qe2 (28...Qe2 29.Rd8 Rd8-+) 0–1. Leolko,Ludmila (1990) – Joao,Amaral (1865), St.Petersburg Summer Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7 6.d4 cd3 7.Bd3 Ng6)

8.0-0 Be7 9.Nbd2 Qc7 (9...Nd7 10.Qe2=) 10.Bb2 (10.c4 Nc6 11.cd5 ed5=) 10...Ne5 (10...Nc6!? 11.Bg6 fg6=+) 11.Ne5+= Qe5 12.Nf3 Qd6 13.Qc2 h6 (13...f5 14.c4 Nc6 15.a3=) 14.Rfd1 (14.c4 Nc6 15.a3 0-0+=) 14...0-0 15.a3 Bf6 16.Rac1 Qe7 (16...a5 17.c4 Bb2 18.c5=+) 17.c4+= dc4 18.Bc4 Bd7 19.Bf6 Qf6 20.Qe2 (20.Be2 a6+=) 20...a6 (20...Ba4!? 21.Re1 a6=+) 21.Ne5+= Bc6 22.Rd2 Qg5 (better 22...Be8+=) 23.Nc6 (better 23.f4 Qf4 24.Rf1+-) 23...Nc6-/+ 24.Qe1 (24.Rdd1 Rac8-/+) 24...Ne5 25.Be2 Rac8 (25...Rad8 26.Rcd1 Rd2 27.Qd2 Qd2 28.Rd2-/+) 26.Rdc2 (26.g3 Qf6=+) 26...Rc2-/+ 27.Rc2 Rd8 28.h3 Nd3 29.Bd3 Rd3 30.Qb1 (30.Qe4 Qf5 31.Qf5 ef5-/+) 30...Qd8 31.Rc1 (31.Rc8!? Qc8 32.Qd3 Qc1 33.Kh2 Qc7 34.Kg1-/+) 31...Ra3-+ 32.Rc4 (32.Qc2 g5-+) 32...Rd3 33.Qc2 Rd2?? (better 33...Rd1 34.Kh2 Qd6 35.f4 g5-+) 34.Rc8-/+ Rc2 35.Rd8 Kh7 36.Rd7 Kg6 37.Rb7 Rb2 38.Ra7 Rb4 39.Ra6 Rb2 40.Ra7 Kf6 41.Ra5 (41.g4 g5=+) 41...Rd2 (41...g6 42.g4-/+) 42.g4=+ Rd5 43.Ra3 h5 44.Rf3 (44.Kg2 h4=+) 44...Kg6-/+ 45.gh5 Rh5 46.Kh2?? (better 46.Ra3-/+) 46...Rf5-+ 47.Rg3 Kf6 48.Kg2 Rg5 49.Rg5 (49.Kf3 Rg3 50.fg3-+) 49...Kg5 50.Kg3 (50.Kf3 Kh4 51.Kg2 e5-+) 50...e5 51.h4 Kf5 52.f3 (52.Kf3 e4 53.Ke3-+) 52...f6 (52...g6 53.Kg2 Kf4 54.Kf2-+) 53.Kf2 Kf4 54.h5 f5 55.Ke2 Kg5 (55...Kg5 56.Ke3 Kh5-+) 0–1. Ulrich,Helena Irene – Bashylina,Luisa (1835), Bad Blankenburg GER, EUR Team Championsh, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7 6.d4 cd3 7.Bd3 Ng6)

8.Qe2 Bd7 9.h4+= Nc6 (9...Qc7 10.h5 Ne7 11.Bd2+=) 10.h5 Nge7 11.Na3 Nc8 (11...a6 12.b5 ab5 13.Nb5+=) 12.Nb5 (12.h6 gh6 13.Nc2 Rg8+-) 12...a6 13.Nbd4 Be7 (13...Nd4 14.Nd4 Qc7 15.Bd2=) 14.Nc6 Bc6 15.Nd4 Na7 (15...Qc7 16.h6 g6 17.0-0+=) 16.Qg4+- Bf8 17.0-0 (17.h6 Qc7 18.Qg3 g6+=) 17...Bd7 18.a4 (18.Bf4 Rc8+=) 18...Qc7= 19.Bd2 Qe5 20.Bf4 Qf6 21.Bg5 Qe5 22.Rae1 (22.Bf4 Qf6 23.Rfe1 h6=) 22...Qd6 (22...Qc7!?=+) 23.h6 g6 (23...gh6 24.Bf6 h5 25.Qh5+-) 24.b5 (24.a5 Nc6=) 24...ab5=+ 25.ab5 Be7 26.Bf4 (better 26.Be7 Qe7 27.Qg3=) 26...e5 (better 26...Qc5!? 27.Qe2 0-0=+ (worse 27...Qc3 28.Ne6 fe6 29.Be5+-)) 27.Be5+= Qe5 28.Qd7!? (28.Re5 Bg4 29.Ra1 Kd7 30.Rd5 Bd6-+) 28...Kd7 29.Re5 Kd6 30.Rfe1 Bf6 31.R5e2 (31.R5e3 Rhc8 32.Rf3 Bh8+=) 31...Nc8 (31...Rhc8 32.Nf3 Rc3 33.Rd2-/+) 32.Re8 (32.Re3 Bd4 33.cd4 Ra4=) 32...Re8 (32...Ra3!? 33.Rh8 Bh8-/+) 33.Re8=+ Nb6 34.Ra8 Na8 35.f4 Nc7 (35...Nb6-/+) 36.Ne2? (better 36.Kf2=) 36...Kc5-/+ 37.g4 (37.Kf2!?-/+) 37...Nb5-+ 38.g5 Bh8 39.f5 Be5 40.f6 Nd6 (better 40...Nc7-+) 41.Kf2-/+ Ne4 42.Be4 de4 43.Ke3 Kc4 44.Ke4 Bc3 45.Nc3 (better 45.Ng3-+) 45...Kc3+- 46.Kd5 (46.Ke5 b5 47.Kd6 b4+-) 46...b5 47.Kd6 b4 48.Ke7 b3 49.Kf7 b2 50.Kg7 b1Q 51.Kh7 Kd4 (better 51...Qf5+-) 52.f7+- Qf5 53.Kg8 Qg5 54.h7 Qd8 (54...Qd5 55.h8Q Kd3+-) 55.f8Q Qd5 56.Qf7 Qd8 57.Kg7 Ke3 (57...g5 58.h8Q Qh8 59.Kh8+-) 58.h8Q Qd4 59.Qf6 Qd7 60.Kf8 Qc8 61.Kf7 (61.Kf7 Qh8 62.Qh8+-) 1–0. Szilagyi,Z (2275) – Pali,G (2010), 3rd Savaria Summer Open, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4 5.c3 Ne7)

8.Qe2 Nd7 9.0-0 Be7 (9...a5 10.c4 dc4 11.Bc4 ab4 12.Nbd2=) 10.Na3+= 0-0 11.Bd2 Nb6 12.Nb5 (12.c4!?+=) 12...Bd7= 13.Nbd4 Qc7 14.Rfe1 Rfe8 15.h4 Nc4 (15...f6 16.ef6 Bf6 17.h5=) 16.Bg5 (16.h5 Nh4 17.Nh4 Nd2 18.Qd2 Bh4+=) 16...Qd8 (better is 16...Nce5 17.Ne5 Ne5 18.Qe5 Qe5 19.Re5 f6=) 17.Be7+/- Qe7 (17...Ne7 18.Bc4 dc4 19.Qc4+/-) 18.g3 (18.Bc4 dc4 19.g3 a5+/-) 18...Nf8 (18...Rec8 19.h5 Nf8 20.Kg2+=) 19.Ng5 (better is 19.Bc4!? dc4 20.Nd2+-) 19...h6+= 20.Nh3 a5 (20...Rac8 21.Nf4+=) 21.a3 (21.Bc4 dc4 22.a3 Rec8+=) 21...Nb6 22.Rac1 ab4 23.ab4 Ra3 24.Qb2 (24.Nf4 Rc8+=) 24...Rea8 25.Ra1 Ra1 26.Ra1 Qd8 27.Ra5 (27.Nf4 Ra4+=) 27...Na4 (27...Ra5 28.ba5 Na4 29.Qb7 Qa5 30.Qb4+=) 28.Ra8= Qa8 (28...Nb2?? 29.Rd8 Nd3 30.f4+-) 29.Qa3 Qc8 30.Ne2 Qc7 31.f4 Qb6 (31...f6 32.ef6 gf6 33.Nf2=) 32.Nf2 (32.Kg2 Qe3 33.Nf2 Qd2=) 32...Qe3 (32...Bb5 33.Nd4 Bd3 34.Qa4=) 33.c4 Qd2 34.c5 Nb2 35.Qc3 Qc3 36.Nc3 Na4 (36...f6 37.ef6 gf6 38.Be2=) 37.Nfd1 Nb2?? (better is 37...Nc3 38.Nc3 g5+=) 38.Nb2+- 1–0. Vafiadis,Kleanthis (2275) – Moskalenko,Viktor (2500), 8th Kavala op, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

8.h4 Nc6 9.Qe2 Qc7 e5 becomes the focus of attention 10.Bb5 Bd7 11.Bc6 Qc6 12.h5 Ne7 13.h6 Ng6 14.hg7 Bg7 15.Bh6 Bh6 16.Rh6 Nf4 17.Qf1 d4 18.Rh4 (18.cd4 Qc1; 18.Nd4 Qd5 Double attack (18...Qg2 Pinning; 18...Qg2 Deflection; 18...Qd5 Decoy; 18...Qg2 Clearance)) 18...dc3 19.Rf4 c2 20.Kd2 Rc8 (20...cb1B?! 21.Qb1 Qc7 22.Qc2 Qc2 23.Kc2+=) 21.Qc1 cb1Q (21...cb1R?! 22.Qc6 (22.Qb1 Qc3 23.Kd1 Ba4 24.Ke2 Bb5 25.Kd1 Rd8 26.Rd4 Rd4 27.Nd4 Qd4 28.Kc2 Ke7 29.Kb3 a5 30.g3 Rc8 31.Qe1 a4 32.Ka3 Qd3 33.Kb2 a3) 22...Rb2 23.Kc3 Rf2 24.Qc8 Bc8 25.Rc4=+; 21...cb1B?! 22.Qc6 Bc6 23.Rb1+=) 22.Rb1 (22.Qb1 Qc3 23.Kd1 Ba4 24.Ke2 Bb5 25.Kd1 Rd8 26.Rd4 Rd4 27.Nd4 Qd4 28.Kc2 Ke7 29.Kb3 a5 30.a4 Qb4 31.Kc2 Rc8 32.Kd1 Qd4 33.Ke1 Qe5 34.Qe4 Qe4 35.Kd2 Qe2) 22...Qd5 23.Rd4 Rc1 24.Rc1 Qb5 (better 24...Qa2!? 25.Rc2 Qa4 26.Rc7-+) 25.Rc7 Rg8 26.g3? (26.Ne1 Qe5 27.Rcd7 Qg5 28.f4 Qg3-+) 26...Ke7?? (26...Bc6 27.Rc8 Ke7 28.Rc7 Kf8 29.Rc8 Be8 30.a3-+) 27.a4? (better 27.Rcd7!? Qd7 28.Rd7 Kd7 29.Kd3-+) 27...Qa4-+ 28.Rb7? (28.Rcd7 Qd7 29.Rd7 Kd7 30.Kd3-+) 28...Rd8 29.b5 (29.Ke3 Qa3 30.Ke4 Ke8-+) 29...Qa2 (29...Qa3 30.Rd3 Qc5 31.Nd4-+) 30.Ke3 Qa3 31.Kf4 Ke8 32.Ng5 (32.g4 a6-+) 32...Qb2 (better 32...Qc1 33.Kg4 h5 34.Kh5 Qh1 35.Rh4 Qb7 36.b6 ab6 37.Kg4-+) 33.Nf3 Qf2 34.Rd2 Qc5 35.Ng5 (35.g4-+) 35...Qc1 36.Ne4 Bc8 (36...Bc8 37.Nf6 Kf8 38.Nh7 Kg7 39.Rf7 Kf7 40.Ng5 Kg6 41.Kg4 Qc4 42.Kf3 Bb7 43.Rd5 Qf1 44.Ke3 Rd5 45.Nf3 Rd3 46.Kf4 Qf3) 0–1. Papp Z,Csaba (2255) – Dobcsanyi,David (2130), HUN–chT2, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

8.h4 Qc7 9.Bg6 hg6 10.Rh3=+.

8.h4 Nd7 9.Qe2 (9.Bg6 hg6 10.Rh3 Qc7=+) 9...Qc7=+ Will e5 fall? 10.Bb5 (10.Bg6!? hg6 11.Bf4=+) 10...Bb4-/+ Attacks the backward pawn on c3 11.Bb2 (11.Bd2!? Bc5 12.h5-/+) 11...Bc5-+ 12.0-0 (12.h5 Nf4 13.Qd2 Qb6=+) 12...a6 13.Bd7 Bd7 (13...Kd7?! 14.Rc1-/+) 14.c4 (14.a4 Qd8-+) 14...dc4 15.Nbd2 (15.Ba3 Rc8 16.Bc5 Qc5-+) 15...c3! 16.Bc3 Bb5 17.Qe4 Bf1 18.Rf1 Rb8 (18...Rd8 19.Rc1 Qb6 20.Qa4 Qb5 21.Qb5 ab5 22.Rb1-+) 19.h5 Ne7 20.g4?! (20.Rc1 Qd7-+) 20...Qc6 (20...Bf2 21.Kf2 Qc3 22.h6 gh6 23.Nc4-+) 21.Qb1 (21.Qc6 bc6 22.Ne4 Ba3-+) 21...Nd5 22.Bb2 (22.Bd4 Bd4 23.Nd4 Qc7-+) 22...Qa4 (22...Rd8 23.Ne4 Nf4 24.h6-+) 23.Ne4 Be7 24.Nd4 (24.Rd1 Rd8-+) 24...Rg8 (24...Rd8 25.Rd1-+) 25.Nd6 (25.Rd1 Rd8-+) 25...Bd6 26.ed6 h6 27.Re1 Nf6 28.f3 Kd7 29.Nb3 Qb4 30.Bd4 Qd6 31.Kg2 Rbc8?? (better 31...Qe7-+) 32.Rd1?? (32.Bf6 Ke8 33.Rd1+-) 32...Nd5-+ 33.Bf2 Rc7 (33...b6!? 34.Rd2-+) 34.Rd2 Ke7 (34...g6 35.Bg3 e5 36.Qe4-+) 35.Qh7 Kf8 36.Bg3 Qe7 37.Qe4? (37.Bc7 Qc7 38.Qe4 g6 39.hg6 Rg6-+) 37...Nf6 (37...Rc4 38.Qe5 f6 39.Qd6-+) 38.Qe3? (better 38.Qd4 Rd7 39.Bd6 Rd6 40.Qd6-+) 38...Rd7 39.Nc5 Rd2 40.Qd2 Ke8 (40...Nd5 41.Ne4 Qd7 42.Qb2-+) 41.Bd6 Qd8 42.Nb7 Qb6 43.Na5 (43.Qb4 Qb4 44.Bb4 Kd7-+) 43...Nd5 44.Nc4 (44.Be5 f6 45.Bd4 Qb5-+) 44...Qc6 45.Qb2 Qc4 46.Qb8 Kd7 47.Qg8 Kd6 48.Qd8 (48.Qf7 Qa2 49.Kg3 Qa1-+) 48...Ke5 49.Qh8 (49.Qb8 Kd4 50.Qa7 Kd3 51.Qf7 Qa2 52.Kg3-+) 49...Qe2 50.Kg3 Qe1 51.Kh2 Qf2 52.Kh1 Kf4 53.Qg7 Kg3 54.Qe5 Kh3 (54...Kh3 55.Qg3 Kg3 56.g5 Qe1) 0–1. Lundberg,Alf W (2010) – Syse,Knut, TV2 Elo Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

5.a3 a5

6.c3 a5 7.b5 Qb6 8.Bd3 Bc5 9.Qe2 Ne7 10.Nbd2 a4 11.Nf1 Nd7 12.Ng3 Ng6 13.0-0 Qc7 Will e5 fall? 14.Re1 Be7 15.Nh5 (15.Bd2 Nc5=) 15...0-0 16.h4 (16.Bd2 Nc5=) 16...Nc5 (16...Qc3 17.Bd2 Qa3 18.Bg5-/+) 17.Bc2 Bd7 (17...Nh4 18.Nh4 Bh4 19.Qg4 Bf2 20.Kf2+-) 18.Ng5 (18.Bg5 Bg5 19.hg5 Qa5=+) 18...Bg5 (18...Qa5 19.Rb1-/+) 19.hg5 (19.Bg5 Ra5 20.Rab1 Qb6=) 19...Ne4 (19...Qa5!?-/+) 20.Be4= de4 21.Nf6? (better 21.Rb1=+) 21...gf6-+ 22.ef6 e3 (better 22...Qc3!? 23.Be3 e5-+) 23.Be3-/+ Rfd8 24.Rad1 Bb5?? (better 24...Rac8-/+) 25.Qb5+- Qc6 (25...Qc3 26.Qb7 Rab8 27.Rd8 Rd8 28.Rc1+-) 26.Qe2 (26.Qc6 bc6 27.Rd8 Rd8+-) 26...Qe4 (26...Qc3 27.Rc1 Qa5 28.Qh5+=) 27.g3 (better 27.Rb1!? Nh4 28.f3+-) 27...Ne5+= 28.Bf4 (better 28.Rd8!? Rd8 29.Rd1+=) 28...Nf3 29.Kh1?? (better 29.Kf1 Qe2 30.Ke2 Ne1 31.Re1-/+) 29...Rd1-+ (29...Rd1 30.Qe4 Re1 31.Qe1 Ne1-+) 0–1. Holving,Rasmus (2165) – Ljungberg,Rune (2160), Salongernas Elo Stockholm, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.c3 a5 7.b5 Nd7 8.Bd3 Qc7=.

6.c3 a5 7.Bd3 ab4 8.cb4 Bb4 9.Bd2 Bd2 10.Qd2 (10.Nbd2 Nc6=) 10...Ne7 11.Nc3 0-0 12.0-0 Bd7 (12...Nbc6 13.Rac1=+) 13.Qg5 (13.Qc2 Ng6=) 13...Ng6 14.Qh5? (14.Qe3 f5=) 14...Qe8 (14...Ra3 15.Ng5 h6 16.Nf7-+) 15.Ng5? (better 15.Rab1 Bc6 16.Nd4=) 15...h6-+ 16.f4 (16.Nf7 Nf4 (16...Qf7?! 17.Bg6 Qe7 18.Rab1=) 17.Nh6 gh6 18.Qg4 Kh8-+) 16...hg5 17.fg5? (17.Bg6 fg6 18.Qg5-+) 17...Qe7 18.Rf3 Rc8 (18...Qc5 19.Kh1 Qc3 20.Raf1-+) 19.Raf1 (19.Rf7 Qc5 (19...Rc3?? 20.Bg6 Qf7 21.Bf7 Kf8 22.Qh8 Ke7 23.Bg6+-) 20.Rf2 Qc3-/+) 19...Rc3 20.Rh3 (20.Rf7 Qf7 21.Rf7 Kf7 22.Qg6 Kf8 23.Qh7 Rd3 24.Qd3 Ra2 25.g6-/+) 20...Qc5 21.Kh1 Rc1 22.Qh7 (22.Qf3 Ne5 23.Qf4 Rf1 24.Bf1 Ng6-+) 22...Kf8 23.Rhf3 Rf1 (better 23...Ne5 24.Rc1 Qc1 25.Rf1 Qg5 26.Bb1-+) 24.Rf1 Ne5 25.g6 f5 (better 25...Be8 26.Qh8 Ke7 27.Qg7 Nbd7 28.gf7 Bf7 (28...Nd3?! 29.f8Q Kd8 30.Qf3=+) 29.Qg5 Ke8-+) 26.Qh8 Ke7 27.Qg7 Kd6 28.Qf8 Kc6 29.g7 Na6?? (better 29...Nd3 30.Qc5 Kc5-+) 30.Qa8+- Nd3 31.h3 Nf2 32.Kh2 Qe3 33.Rf2 (better 33.g8Q Ne4 34.Qg6+-) 33...Qf2?? (better 33...Qe5 34.g3 Qg7 35.Rc2 Kb6-+) 34.g8Q+- f4 (better 34...Qf4!? 35.Qg3 Qg3 36.Kg3 d4+-) 35.Qaf8 e5?? (35...Nc5 36.Qg5 Nd3+-) 36.Qf6 Kc5 37.Qe7 Kd4 38.Qd7 Nc5 (38...Qa2 39.Qb7 Nc5 40.Qb4 Qc4+-) 39.Qgd5 (39.Qgd5 Kc3 40.Qe5 Kb4 41.Qdd5 Qg3 42.Kh1+-) 1–0. Klotz,Stefan – Glenzer,A, Porz op28, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.c3 f6 7.Bd3 Nc6 8.0-0 g6 (8...fe5!? 9.b5 e4 10.bc6 ed3 11.cb7 Bb7+=) 9.Re1 Bg7 10.ef6 Nf6 11.b5 Ne7 12.Nd4 e5 13.Re5 Ne4 14.Ne6 (better 14.Re4!? de4 15.Be4+=) 14...Be6=+ 15.Re6 Qd7 The backward pawn on c3 becomes a target 16.Qg4 Nc5 17.Re7 Qe7 18.Bf1 0-0 19.Be3 Ne4 20.Nd2? (better 20.Qd1 Qd6 21.Bd3 Nc3 22.Nc3 Bc3 23.Rc1-/+) 20...Bc3 (20...Nc3?! 21.Nb3-+) 21.Ne4 Ba1 (21...Qe4?! 22.Qe4 de4 23.Bc4 Kg7 24.Rc1=+; 21...de4?! 22.Rc1 Be5 23.a4=+) 22.Ng5 Rae8 (22...Bf6 23.Ne6 Qd7 24.f4-+) 23.h4? (better 23.Qd1 Qe5 24.Nf3 Rf3 25.Qf3-+) 23...Bf6 (23...Rf5 24.Qd1 Bf6 25.g4-+) 24.Bd3 (24.Ba7 Ra8 25.b6-+) 24...Qa3 (better 24...Kh8-+) 25.Qd7 Re7 26.Qd5 Kg7 27.Bc5 (better 27.Ne4!?-/+) 27...Rd8!-+ 28.Qd8 Qc5 29.Bf1 Bg5 (better 29...Bd4!? 30.Nh3 Rf7-+) 30.hg5-/+ Qg5 31.Qd4 Qe5 32.Qa7 h5 33.Qa3 g5 34.Qb4 g4 35.a4 Rf7 36.g3 b6 37.Qc4 (37.Qd2 Ra7-/+) 37...Rc7 (37...Qb2 38.Qe2 Qe2 39.Be2-+) 38.Qd3 Qc3 (38...Qf6 39.Bg2-/+) 39.Qf5 (39.Qe4 Qf6=+) 39...Qc5-/+ 40.Qb1 Qd4 41.Qe1 Rf7 42.Bg2 (42.Kg2 Kf8-+ (42...Qa4?! 43.Qe5 Kf8 44.Qd6 Re7 45.Qf6 Ke8 46.Qg6 Kd8 47.Qb6 Kc8 48.Qc6 Kd8 49.Qd6 Rd7 50.Qb8 Ke7 51.Qe5 Kd8 52.Qh8 Kc7 53.Qh5=)) 42...h4 (42...Qa4 43.Qe5 Kg6 44.Be4 Kh6 45.Qh8 Kg5 46.Qd8 Kh6 47.Qb6 Kg7 48.Qg6 Kf8 49.Qd6 Kg7 50.Qe5 Kf8 51.b6+-) 43.Qe4?? (better 43.Qe3 Qe3 44.fe3-+) 43...Qf2 44.Kh1 Qg3 45.Qd4 Rf6 46.Qd7 (46.Qa1 Qf4 47.Qc3 h3-+) 46...Kh6 0–1. Becham,Kalid – Tavares,S (2215), Gibraltar Open, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.c3 f6 7.Bd3 Nc6 8.b5 Ne5 9.Ne5 fe5 10.Qh5 Kd7 11.b6 (11.Qe5 Qf6 12.Qh5 Bd6+=) 11...a6 (11...Qb6 12.Qe5 Nf6 13.0-0=+) 12.Bc2= Bc5 13.Qe5 Nf6 14.c4? (better 14.Qg3 Rg8 15.a4 Qb6 16.a5=+) 14...Bf2!-+ (14...Bb6?! 15.cd5 Bf2 16.Ke2=; 14...Qb6?! 15.Qg3 Ke8 16.Nc3=+) 15.Ke2 (15.Kf2 Ng4) 15...Qb6 (15...Bb6?! 16.cd5 Ke8 17.Rd1=+) 16.Rd1 Bg1 17.Qg3 (17.cd5 Qf2 18.Kd3 Qg2 (18...ed5 19.Ba3 Qe3 20.Qe3 Be3 21.Ke3+-) 19.de6 Ke8-+) 17...Rg8 18.Rg1 (18.Nc3 Bd4 19.cd5 ed5 20.Nd5 Nd5 21.Qg4 Kc7 22.Bf4 Kd8 23.Bg5 Bf6 24.Bf6 Ke8 25.Qh5 Kf8 A) worse 26.Rd5 gf6 (26...Qf6?? 27.Rf1 Be6 28.Rd4+-) 27.Qh6 Rg7=+; B) 26.Be5=) 18...Qg1-+ 19.Be3 Qh1 20.Bc5 Ne8 (better 20...e5 21.cd5 Nd5 22.Bh7 Re8-+) 21.Bd4 dc4?? (better 21...Qc1 22.Ba4 b5=+) 22.Nd2+- Qa1 23.Ba1 g6 (23...Nd6+-) 24.Nc4 Ke7 (24...b5 25.Nb6 Ke7 26.Qh4 Kf8 27.Na8+-) 25.Nb6 1–0. Politov,P (2200) – Pavlov,Vi2 (2050), ch–PriFO Kazan RUS, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.Bd3 Bb4 7.c3 Bc5 8.0-0 a6 9.Nbd2 b5? (better 9...Ne7!?=) 10.Nb3 Bb6 11.Ba3 (11.a4 ba4 12.Ra4 Ne7+-) 11...Nd7 12.Qe2 Bb7 13.Nfd4 Rc8?? (better 13...Ne7 14.Bd6 Rc8+=) 14.Ne6!+- Qh4 (14...fe6 15.Qh5 Mate attack) 15.Ng7 Kd8 16.Nf5 (better 16.e6 Nh6 17.ed7 Kd7+-) 16...Qa4 (16...Qf4 17.Bd6 Rc6+-) 17.Bb4 Rc4 (17...a5 18.Bb5 Ba6 19.Ba6 ab4 20.Bc8 Kc8 21.Nd6 Kb8 22.Nf7 bc3 23.Nh8+-) 18.Bc4 (better 18.Nd6 Nh6 19.Nb7 Kc7 20.Bc4 bc4+-) 18...bc4 19.Nd6 cb3 (19...Kc7 20.Nf7 cb3 21.ab3+-) 20.Nb7 Kc7 21.ab3 (21.Nd6!? b2 22.Qb2 Ne7 23.Nf7 Rf8+-) 21...Qb5 22.Qg4 Kb7 (22...Nh6 23.Qg7 Rg8 24.Qh6 Kb7 25.Qh7+-) 23.Qg7 1–0. Ritter Aguilar,J (1825) – Ruiz Lupon,Neri (1645), 12th Llinars del Valles, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.Bd3 Bb4 7.c3 Bc5 8.0-0 Nc6 9.Nbd2 Nge7 10.Nb3 Bb6 11.Re1 Bc7 (11...Bd7 12.Ba3=) 12.Nbd4 a6 (12...0-0 13.Ba3=) 13.Qe2 (13.Qc2 Bd7=) 13...Ng6 14.Nc6 bc6 15.Ba3 a5 (15...Nf4 16.Qe3 Nd3 17.Qd3=) 16.g3+/- Bd7 17.h4 Qb8 (17...Ne7 18.Rab1+/-) 18.h5 Nf8 (better is 18...Ne7!?+/-) 19.h6+- gh6 20.Qe3 Bd8? (better is 20...Rg8 21.Rab1 Qd8+-) 21.Qh6 (21.Qh6 Rg8 22.Bh7 Nh7 23.Qh7+-) 1–0. Kappelt,Joerg (2130) – Zahn,Richard (1905), Niederrhein–ch, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.Bd3 Bb4 7.c3 Bc5 8.Qa4 Qd7 9.Qg4 f5 10.ef6 (10.Qh5 g6 11.Qg5 b6-/+) 10...Nf6-/+ 11.Qh4 0-0 12.0-0 Nc6 13.Bf4 Be7 14.Bg5 (14.Ne5 Qe8 15.Nc6 Qc6-/+) 14...Bd6 (14...h6 15.Be3-+) 15.Re1 (15.Bf6 gf6 (worse 15...Rf6 16.Qh7 Kf7 17.Qh5 Ke7 18.Qh8+=) 16.Nbd2 e5-/+) 15...h6 16.Nbd2 (16.Bd2 e5 17.c4 e4 18.cd5 ef3 19.dc6 Bh2 20.Qh2 Qd3-/+) 16...Qf7 (16...hg5 17.Ng5 g6 18.Ne6-+) 17.Bf4 (17.Bf6 Qf6 (17...gf6?! 18.Qh6 Ne5 19.Ne5 fe5 20.f3=) 18.Qf6 gf6-+) 17...Be7-+ 18.Ne5?? (better 18.Qg3 Nh5 19.Bg6 Qf4 20.Bh5 Qg3 21.hg3-+) 18...Ne5 19.Be5 Ne4 20.Qg4 (20.Qf4 Qf4 21.Bf4-+) 20...Qf2 21.Kh1 Qe1! (21...Qe1 22.Re1 Nf2 23.Kg1 Ng4-+) 0–1. Zhukov,V (2215) – Neese,Hans Joachim, World Seniors, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

6.Bd3 Bb4 7.c3 Be7 8.0-0 Nc6 9.Qc2 f5 10.ef6 (10.Qe2 Bd7=+) 10...Nf6-/+ 11.Re1 e5 (11...Qc7!?-/+) 12.Ne5= Ne5 13.Re5 0-0 14.h3 Bd6 15.Re1 Bd7 16.Bg5 h6 17.Be3 Qc7 18.Qb3 Rae8 19.Na3 (19.Nd2 b6=) 19...a6 (19...Bh2 20.Kf1=+) 20.Nc2 Bc6 21.Nd4 (21.Bg6 Re5=) 21...Bf4 (21...Ne4 22.Nc6 Qc6 23.Rad1=) 22.Bf4 Qf4 23.Qc2 (23.Re8 Re8 24.Bg6 Rb8+=) 23...Ne4= 24.Be4 de4 25.Nc6 bc6 26.Re3 Re5 27.Rae1 Rfe8 28.Qa4 Rf8 29.Qc2 (29.Re4?! Qf2 30.Kh1 Re4 31.Re4 Qf1 32.Kh2 c5=) 29...Rfe8 30.Qe2 Rf8 31.Rf1 Rf6 (31...a5+-) 32.Rg3 (32.Qa6 c5 33.Qe2 Rf7+-) 32...Rg5 (better 32...c5!?=) 33.Rg5+- hg5 34.Qc4 (better 34.Qa6!? e3 35.f3+-) 34...Kh7= 35.Qa6 g4 36.g3 Qf3 37.h4 Qc3 38.Qe2 Qf3 39.Re1 Re6 40.Qc2 g6 41.Re3 Qf5 42.Qe2 c5 (42...Re7 43.a4+=) 43.a4 g5 44.hg5 Kg6 45.a5 Kg5 46.a6 Qf6 (46...Re7 47.Rc3 Rd7 48.Qe3 Kf6 49.Qh6 (49.Rc5 Rd1 50.Kg2 Qf3 51.Qf3 gf3 52.Kh3 e3-+; 49.Qc5?! Qc5 50.Rc5 Rd1 51.Kg2 Ra1+=) 49...Ke7 50.Qc1+-) 47.Re4 (47.Ra3 Qd8 48.a7+-) 47...Re4 48.Qe4 Qa6 49.Qe5 Kg6 50.Qc5 Qa1 51.Kg2 Qa8 52.Kf1 Qa6 53.Ke1 Qa1 54.Kd2 Qf6 55.Kc2 Qa6 56.Qd4 Qe2 57.Kc3 Qe1 58.Kc4 Qe6 59.Kb4 Qe1 60.Kc5 Qa5 61.Kc6 Qa6 62.Kc7 Qa5 63.Kd7 Qf5 64.Kd8 Qf8 65.Kc7 Qf7 66.Qd7 Qf3 67.Qc6 Kf5 68.Qf3 (68.Qc5 Ke4+=) 68...gf3= 69.Kd6 Ke4 70.Kc5 Kd3 71.g4 Ke2 72.g5 Kf2 73.g6 Ke1 74.g7 f2 75.g8Q f1Q ½–½. Price,Alan (1940) – Slomski,Matt (2030), US Amateur Team East, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 c4)

4.e5 Nc6

5.a3 Qc7 6.Qe2 cb4 7.d4 Nh6 (7...Nge7!?-/+) 8.Bh6= gh6 9.ab4 Bb4 10.c3?? (10.Kd1 Rg8=) 10...Ba5?? (better is 10...Nd4 11.Qd3 Nf3 12.Qf3 Qe5 13.Kd2 Bd7-+) 11.Qd2= Rg8 12.g3 Rg4 13.Be2 Bd7 14.0-0 a6 (14...Rg6 15.Nh4 Rg5 16.Nf3=) 15.Rc1 (15.Qh6 Rg6 16.Qh7 Ne7+/-) 15...b5 (15...Rg6!?=) 16.Qh6+/- Rg6 17.Qh7 0-0-0 (17...Ne7 18.h4 Rg8 19.Ng5+-) 18.Qf7 Rdg8 19.Nbd2 R6g7 20.Qf4 Qb7 21.Ne1 Bd8 22.Nb3 Bg5+/- 23.Qf3 Be7? 24.Nd3+- Qb6 25.Rab1 Nd8 26.Nbc5 Nb7 27.Nd7 Kd7 28.Qg2 Na5 29.f4 Nc4 30.f5! Bg5? 31.fe6 Kc7 32.Qd5 Bc1 33.Rc1 Rd8 34.Nf4 Kb8 35.Qe4 Nd2 36.Qe3 Nb3 37.Rd1 a5 38.Bf3 a4 39.Qe4 Ra7 40.Nd5 Qe6 41.Nb4 Rc8 42.Bg4 Qh6 43.Bc8 Kc8 44.Qc6 Qc6 45.Nc6 Rc7 46.d5 a3 47.e6 a2 48.e7 Kd7 49.Ne5 Ke8 50.d6 Rd7?? 51.Nd7 Kd7 52.h4 Nd2 53.Ra1 Ne4 54.Ra2 Nd6 55.Ra7 Ke8 56.Kg2 Ne4 57.Rc7 Nf6 58.Rc5 Ne4 59.Rb5 Nc3 60.Rb7 Ne4 61.g4 Nf6 62.g5 Nd7 63.g6 Nf6 64.g7 Kf7 65.h5 Ne8 66.h6 Nf6 67.h7! (67.h7 Ne8 68.g8Q Kf6 69.h8Q Ng7 70.Qhg7 Kf5 71.Qd5 Kf4 72.Qgd4) 1–0. Alkhaldi,Bader (1930) – Al Awadhi,Waleed (1950), Kuwait KUW, Men Ch, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

5.b5 Nd4 6.c3 Nf3 7.Qf3 f6 8.d4 Qa5 (8...cd4 9.cd4 Bd7 10.Nc3=) 9.Bd3+= f5 10.0-0 (10.dc5 Bd7 11.Bd2 Bc5+=) 10...c4= 11.Bc2 Qb5 12.a4 Qa5 13.Ba3 Ba3 14.Na3 Bd7 (14...Nh6 15.Nb5 Nf7 16.Rfb1=+) 15.Nb5 Bb5 16.ab5 Qb6 (16...Qb5?? 17.Ba4 Qa4 18.Ra4+-) 17.Qg3 Kf7 (17...Qb5?? 18.Ba4 Qa4 19.Ra4+-) 18.Qh3 (18.Rfb1 Ne7=) 18...h6 (18...Qb5 19.Rfb1 Qc6 20.Ba4=+) 19.g4 (19.Rfb1 Ne7=) 19...fg4 (19...g6 20.gf5 ef5 21.Rfe1=+) 20.Qh5= Kf8 (20...Ke7 21.Qg4 Kd7 22.Qg7 Ne7 23.Kh1=) 21.f3 (21.f4 Ke7= (21...Qb5 22.f5 Qe8 23.fe6 Nf6 24.Qf5+-)) 21...g3=+ (21...Qb5 22.fg4 Nf6 23.Ba4+-) 22.f4 gh2 23.Kh2 Ne7 (23...Ke7!? 24.Qg6 Kd7 25.Qg7 Ne7=) 24.f5+/- ef5 25.Bf5 Kg8 26.Qg4 (26.Bc2 g6 27.Bg6 Qg6 28.Rg1+-) 26...Rf8?? (better 26...Nf5 27.Qf5 Qb5 28.Qf7 Kh7 29.Qf5 Kg8 30.Qf7 Kh7 31.Qf5 Kg8=) 27.Be6+- Kh7 28.Bf7?? (better 28.Rf6! Rf6 29.ef6+-) 28...Qb5=+ 29.Ra2 Rhg8 30.Rg2 Rf7?? (better 30...Qb6+=) 31.Rf7+- (31.Rf7 Qe8 32.Rg7 Kh8 33.Re7+-) 1-0. Grabinsky,V (2215) - Tregubov,P (2560), Titled Tuesday 1st June, 2021. (=1.e4 C00: French: Unusual White 2nd moves 1...e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

5.b5 Nce7 6.a4 Ng6 7.h4 Qc7 8.Bb2 d4 9.c3 Ne5 10.cd4 Nf3 11.Qf3 Nf6 (11...cd4 12.Bd4 Qd8 13.Qd3=) 12.dc5+= Bc5 13.Bf6 gf6 14.Qf6 Rf8 15.Nc3 Bd7 16.g3 Be7 17.Qf3 0-0-0 (17...a6 18.Rb1+/-) 18.Bg2 f5 19.0-0 f4 20.Rfc1 Kb8? (20...fg3 21.Nd5 gf2 22.Kf1 Rf3 23.Rc7 Kb8 24.Rb7 Kb7 25.Ne7 Rdf8+-) 21.Nd5+- fg3 22.Qe4?? (better 22.Nc7 Rf3 23.Bf3 Bh4 24.Na6 ba6 25.ba6 gf2 26.Kf1 Bb5 27.ab5+-) 22...gf2-+ 23.Kf1?? (23.Kh1 ed5 24.Qe7-+) 23...Qh2 (better 23...ed5 24.Qd5 Bc6 25.Rc6 bc6 (25...Rd5?! 26.Rc7 Kc7 27.Bd5-/+) 26.Qc6 Qc6 27.bc6 Rd2 28.Rb1 Kc8-+) 24.Ne7+- Qg1 25.Ke2 f1Q 26.Rf1 Qb6 27.Rf8 (27.Qh7?! Bb5 28.ab5 Qb5 29.d3 Qb2 30.Ke3 Qd4 31.Kd2 Qb2 32.Ke3 Qd4 33.Ke2 Qb2 34.Ke3=) 27...Rf8 28.Rf1 Re8 (28...Rf1 29.Kf1 Qc7 30.Ke2+-) 29.Qe5 (29.Rf7 h6+-) 29...Ka8? (29...Qc7 30.Qc7 Kc7+-) 30.Rf7 a6 31.ba6 (31.Nc6 h5 32.Rd7 Rg8+-) 31...Qa6 32.d3 Qa4 33.Qe4 (better 33.Qb2!? Qa6+-) 33...Qc2 34.Ke3 Bc6 (34...Qc1 35.Kf2 Qb2 36.Kg1 Qc1 37.Rf1 Qb2+-) 35.Nc6 bc6 (35...Qc1 36.Kf2 Qa3 37.Rb7 Qa2 38.Ke3 Kb7 39.Ne7 Qd5 40.Nd5 ed5 41.Qe8 Ka7 42.Qc6 h6 43.Bd5 Kb8 44.Qb7) 36.Qc6 (36.Qb4 Qc1 37.Ke4 Qc4 38.dc4 Re7 39.Qe7 e5 40.Qd8) 36...Qc6+- 37.Bc6 Kb8 38.Be8 Kc8 39.Bd7 Kd8 40.Be6 Ke8 (40...h6 41.d4 Ke8 42.d5 Kd8 43.d6 Ke8 44.Rg7 Kd8 45.Rg8) 41.Rh7 Kf8 (41...Kd8 42.d4 Ke8 43.d5 Kd8 44.d6 Ke8 45.Rh8) 42.d4 Ke8 43.d5 (43.d5 Kf8 44.d6 Ke8 45.Rh8) 1-0. Hrabinska,M (2235) - Bocangel Chavez,Marjoire J (1645), Titled Tuesday 2nd June, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

5.b5 Nce7 6.c4 Ng6 7.g3 N8e7 8.h4 Qc7 (8...dc4 9.Bb2 (worse 9.Bc4 Ne5 10.Ne5 Qd4-/+) 9...Nd5 10.Bc4=) 9.Bb2 Nf5 10.Bd3 Nge7 11.Nc3 (11.Qc2 d4=) 11...dc4 12.Bc4 b6 13.Ne4 Bb7 14.d3 0-0-0 15.Qe2 Nd5 16.0-0-0 (16.Rc1 Kd7=) 16...g6 17.Kb1 Bg7 18.g4 Nh6 (18...Nf4 19.Qe1 Nd4 20.Bd4 cd4 21.Rc1+-) 19.Rhg1 Rd7 20.Nd6 Kb8 21.Ng5 Bf8 22.Rc1 Qd8 (22...Ng8 23.Nge4+-) 23.Nb7 (23.d4 Bd6 24.ed6 cd4 25.Bd4 Re8 26.Nh7 f5+=) 23...Kb7 24.Qf3 Kb8 25.Qe4 (25.Bd5 Rd5 26.Nf7 Nf7 27.Qf7 Qe7+=) 25...Nb4 26.Rg3 Be7 27.f4 Qc7 (27...Nd5 28.d4+=) 28.a3 Nd5 29.Rf1 (29.Qf3 Qc8+=) 29...Qb7 30.Qe1 Bg5 31.hg5 Ng8 32.Rh3 Nge7 33.Qg3 Nc7 (33...Qc8 34.Rfh1+-) 34.Rfh1 h5 (34...a6!? 35.ba6 Na6+-) 35.gh6+- a6 36.ba6 Na6 37.Bb5 Rdd8 38.h7 (38.Qf3 Nc7 39.Qb7 Kb7+-) 38...Nc7 39.Bc4 Nc6 40.f5! gf5 (40...ef5 41.Bf7 Pinning (41.Bf7 Deflection); 40...gf5 41.gf5 Combination) 41.gf5 Qc8 (41...b5 42.Ba2+-) 42.Qf4 (42.f6 Qd7+-) 42...Nd4 43.fe6 fe6 44.Qe4 Rd7 (44...b5 45.Ba2 Qa6 46.Rc1+-) 45.Rh6 (45.Bd4 Rd4 46.Qc6 Ka7+-) 45...Nf5? (better 45...Qe8+-) 46.Re6 Ng3 (46...b5 47.Rb6 Ka7 48.Bb5 Rdh7 49.Rh7 Rh7+-) 47.Rb6 Ka7 48.Qc6 Nh1 49.e6 Re7 (49...Rdh7 50.Rb3 Rd7 51.ed7 Nb5 52.dc8Q Rc8 53.Qb5 Re8 54.Qa4) 50.Qc5 Reh7 51.Qa5 (51.Ra6 Kb8 52.Qa7) 51...Na6 (51...Qa6 52.Ba6 Ka8 53.Bc4 Na6 54.Qa6 Ra7 55.Bd5) 52.Ra6 Kb7 (52...Qa6 53.Qa6 Kb8 54.Be5 Rc7 55.Bd5 Rh2 56.Qb7) 53.Bd5 (53.Qb6) 53...Kb8 (53...Qc6 54.Bc6 Kc8 55.Ra8) 54.Qb6 (54.Qb6 Qb7 55.Bb7 Rb7 56.Be5 Kc8 57.Ra8 Rb8 58.Rb8; 54.Ra8) 1–0. Moro,Antonio Renato (1770) – Feller,G L V, 2nd Floripa Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

5.Bb5 a6 6.Bc6= bc6 7.bc5 Bc5 8.d4 Ba7 9.Ba3 Ne7 10.c3 (10.Nbd2 0-0+=) 10...0-0 11.Nbd2 Re8 12.0-0 Qa5 13.Bb4 Qd8 14.Rb1 (14.Nb3 Bb6+=) 14...a5= 15.Ba3 Ba6 16.Re1 Rc8 17.Nb3 Bc4 18.Rb2 (18.Qd2 Bb6+=) 18...Ng6 19.Nc5 Nf4 (better 19...Bc5 20.Bc5 Nf4=) 20.Qd2?? (better 20.Nb7 Qd7 21.Nd6+- (21.Na5?! Nd3=)) 20...Bc5-/+ 21.Bc5 Nd3 22.Bb6 Qd7 23.Ba5 (23.Reb1!? Nb2 24.Rb2-/+) 23...Ra8-+ (23...Ne1?! 24.Ne1 c5 25.Bb6-/+) 24.Bb4 Nb2 25.Qb2 Ra2 (25...Ra2 26.Qc1 Bd3-+) 0–1. Povilaitis,Tomas – Baumilas,Silvestras, XXXIIIrd International Chess Tournament, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

5.Bb5 cb4!? 6.0-0 Bd7=+.

5.bc5 Bc5

6.Ba3 Qb6 7.Bc5 Qc5 8.Nc3=.

6.c3 Nge7 7.d4 Bb6 8.Bd3 0-0 9.Bh7 Kh7 Decoy to h7 10.Ng5 Kg6 11.h4 f6 (11...Qe8 12.Qg4 Nf5 13.h5 Kh6 14.Ne4 Kh7 15.h6+-) 12.Qd3 Nf5 13.h5 Kh6 14.Ne6 g5 (14...Kh7 15.Nd8 Bd8 16.e6 Be6 17.g4+-) 15.hg6 Kg6 16.Rh6 Kf7 17.Qf5 Be6 18.Rh7 Ke8 19.Qe6 Ne7 20.Ba3 Rf7 21.Rf7 (21.Rf7 Qd6 22.ed6 Bd4 23.Qe7) 1–0. juliangon (2645) – Ratscales, ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Qa5 7.Bd2 Bb4 8.c3 (8.Bd3 Qb6 9.c3 Be7+=) 8...Be7 9.Bd3 Qd8 (9...Qc7 10.Qc2+=) 10.0-0 f6 (10...Bd7 11.Be3+=) 11.Re1 (11.Bf4 Qd7+-) 11...fe5 12.Ne5 Ne5 13.de5 Bg5?? (better 13...g6+-) 14.Qh5+- g6 15.Qg5 (15.Bg5?! gh5 16.Bd8 Kd8+-) 15...Qb6 (15...Qg5 16.Bg5 b6 17.Nd2+-) 16.Na3 (better 16.Bg6 hg6 17.Qg6 Kd7+-) 16...Qc5 (16...a6 17.c4 Qc5 18.Qg3+-) 17.Nb5 Bd7 (17...Qe7+-) 18.Nd6 Kf8 19.Qf4 Ke7 20.Qf7 Kd8 21.Qf8 (21.Nb7 Kc8 22.Nc5 Nf6 23.ef6 Bc6 24.Ba6 Kb8 25.Rab1 Bb5 26.Rb5) 21...Kc7 22.Qa8 Nh6 23.Qb7 Kd8 24.Bg5 1–0. Pera Muntasell,Marc – Santiago Arauco,Aleix (1845), 18th Obert Internacional Foment Martine, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Qa5)

6.d4 Bb4 7.c3 Ba5 8.Bd3 Qb6 9.0-0 Nge7 10.Ba3 0-0 (10...Ng6!?+=) 11.Bh7 Kh7 12.Ng5 Kg8?? (better 12...Kg6 13.Qg4 f6 14.Ne6 Kf7 15.Qg7 Ke6 16.ef6 Rf6 17.Re1 Kd7 18.Be7 Rg6 19.Qg6 Ne7 20.Qb6 Bb6+-) 13.Qh5 (13.Qh5 Qb1 14.Rab1 Rd8 15.Qh7 Kf8 16.Qh8) 1–0. Dorst,Joachim – Hain,Philipp, Bad Zwesten op, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb4)

6.d4 Bb4 7.c3 Ba5 8.Bd3 Nge7 9.0-0 0-0 10.Bh7 Kh7 11.Ng5 Kg8?? (better 11...Kg6 12.Qg4 f5+-) 12.Qh5+- Re8 13.Qh7 Kf8 14.Qh8 Ng8 15.Nh7 Ke7 16.Bg5 Nf6 17.Qg7 (17.ef6?! Kd6 18.Qg7 e5+-) 17...Rg8 (17...Kd7 18.ef6 Kc7 19.Qf7 Qd7+-) 18.Bf6 Kd7 19.Qf7 (19.Bd8?! Rg7 20.Ba5 Rh7+-) 19...Ne7 20.Be7 Rg2 21.Kg2 Qe7 22.Nf6 Kd8 23.Qe7 Ke7 24.f4 (24.Rg1 Kf7 25.Kf3 b6+-) 24...b6 (24...Bd7 25.Rf3 Rh8 26.Nd2+-) 25.Rf3 Ba6 (25...Bd7 26.Nd2 b5 27.Rh3+-) 26.Nd2 Rc8 27.Rc1 b5 (27...Kf7 28.Rh3 Rf8 29.Nf3+-) 28.Nb3 Bb6 29.Rg3 Kf7 (29...Rc6 30.Rg1 Kd8 31.Rg8 Kc7 32.f5+-) 30.a3 (better 30.Rg1 Bd8 31.Nc5 Bf6 32.ef6 Rc5 33.dc5 b4+-) 30...Bd8 (30...Rh8 31.Rh3 Rh3 32.Kh3+-) 31.Nh5 Bb6 (31...Be7 32.f5! Rh8 33.Rg7 Kf8 34.f6 Bf6 35.ef6 Rh5 36.Ra7 Rg5 37.Kh3 Rh5 38.Kg4+-) 32.Rg7 Kf8 33.Rh7 Rc4 34.Kf3 (34.Kf2 Rc7 35.Rh8 Ke7 36.Nf6 Rc3 37.Rc3 Kf7 38.Rg3 Bd4 39.Nd4 Bc8 40.Rh7 Kf8 41.Rg8) 34...Ra4 35.Rg1 (35.Rg1 Ra3 36.Nf6 Rb3 37.Rg8) 1–0. Martorell Aubanell,Adria (2160) – Magraner Del Val,A (1625), 2nd Open Internacional Hotel Murta Xati, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Bb4 7.c3 Ba5 8.Bd3 Nge7 9.0-0 Bd7 10.Ng5 Ng6 (10...h6 11.Nf3+=) 11.Qh5 (11.Qf3 Qe7+-) 11...Nce7+= 12.Ba3 Nf5 13.Bf5 ef5 14.e6 Be6 (14...fe6 15.Bb4=) 15.Re1+= Qf6 (better 15...Qd7!? 16.Ne6 fe6 17.Qf5 0-0-0+=) 16.Nh7+- Rh7 17.Qh7 0-0-0 18.Qh3 Bc7 19.Qd3 Rh8 20.g3 Qg5 21.Bc1 (better 21.Nd2!?+=) 21...Qh5=+ 1–0. Salim,Djaffer – Alim,Mounir, 2rd Mokhtar Chergui Memorial, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Bb4 7.c3 Ba5 8.Bd3 Nge7 9.0-0 Ng6 10.Ng5 Nce7 11.Qf3 Nf5 12.g4 (12.Bd2 h6 13.Nh3 Qb6=) 12...Ngh4 (12...Nh6 13.Nh3=) 13.Qd1 (13.Qh3 h6 14.Ne6 fe6 15.gf5 ef5+=) 13...Ne7 14.Nh7 (worse 14.Bh7 f6-+) 14...Qc7 Attacking the backward pawn on c3 15.Bd2 (15.Ba3 Bd7+=) 15...Bd7 (15...Nhg6 16.Ng5=) 16.f4 0-0-0 (16...Nhg6 17.Ng5+=) 17.Ng5+- Rdf8 18.Nf3 (18.Qe2 Kd8+-) 18...Qb6 (18...f5 19.g5+=) 19.Na3 (19.Qb3 Nf3 20.Rf3 Qd8+-) 19...Qb2 (19...Nf3 20.Qf3 f6 21.Rab1+-) 20.Nc2 (20.Qc1 Nf3 21.Rf3 Qc1 22.Rc1 f6+-) 20...Ba4 21.Rb1 Bc2 22.Bc2 (worse 22.Rb2 Bd1 23.Nh4 Bg4=+; 22.Qc2?! Qc2 23.Bc2 Nc6+-) 22...Qa3 23.Bb3 Nc6 24.Qe2 (24.Ng5 Kd8+-) 24...Nf3 25.Rf3 Rh4 26.Rf2 Rh3 27.Rc1 Kb8 28.f5 Rc8 29.Rc2 Bb6 30.Be3 (30.g5 Rch8+-) 30...Ka8 (30...Na5 31.fe6 fe6 32.Bc1+=) 31.Rf3+- Rch8 32.Rh3 Rh3 33.Kg2 Rh4 34.Bc1 (34.Bg5 Rh8+-) 34...Qf8 35.fe6 Qh8 36.ef7 (better 36.Bf4!? fe6 37.Ba4+-) 36...Rh2= 37.Kg1 (37.Kg1 Rh1 38.Kg2 Qh3 39.Kf2 Rh2 40.Ke1 Re2 41.Re2 Qh1 42.Kd2 Qh6 43.Re3 Qh2 44.Kd3 Qh7 45.Ke2 Qh2 46.Kf3 Qh3 47.Kf2 Qh2 48.Kf3 Qh3 49.Kf2 Qh2 50.Kf3=) 1–0. Ciobanu,Au (2210) – Fulger,I (1825), ch–ROU Men Sarata Monteoru ROU, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Be7 7.c3 Qc7 8.Bd3 f6 9.Qe2 fe5 10.de5 Bd7 11.0-0 0-0-0 (11...Rc8!?=) 12.Na3+- Be8 (12...Na5 13.c4+-) 13.Nb5 Qd7 14.Nbd4 (14.Nfd4 Kb8+-) 14...Bh5 15.Qc2 (better 15.Bb5 Bf3 16.Qf3+-) 15...Nh6? (15...Bf3 16.Nf3 Qc7 17.Qa4+-) 16.h3?? (16.Nc6 bc6 17.Rb1+-) 16...Rdf8 (16...Bf3 17.Nf3 Nf7 18.Qe2+=) 17.g4 (17.Nc6 bc6 18.Rb1 Kd8+-) 17...Be8 (17...Bg6 18.Bg6 hg6 19.Qg6+-) 18.Rb1 Nf7 (18...Bc5 19.Ng5 Bd4 20.cd4+-) 19.Bf4 (19.Nc6 Qc6 20.Nd4 Qa4 21.Ne6 Ne5 22.Nf8 Rf8 23.Bf5 Kc7+-) 19...g5 (19...Nfd8 20.Be3+=) 20.Bg3 (better 20.Ne6 Nfe5 21.Be5 Ne5 22.Ne5 (worse 22.Nfg5 Bg5 23.Nf8 Nf3 24.Kg2 Rf8-/+) 22...Qe6 23.Bf5 Rf5 24.Qf5 Qf5 25.gf5+-) 20...Bc5?? (20...Nfd8 21.c4+=) 21.Rfe1 (21.Ne6 Qe7 22.Bf5 Kb8+-) 21...h5?? (21...Nfd8 22.Ng5 Bg6 23.Ngf3+=) 22.Rb5?? (better 22.Ne6 Qe6 23.Bf5+-) 22...Bb6 (22...Bd4 23.cd4 Kd8=) 23.a4?? (better 23.Ne6!? Nfe5 24.Ne5 (24.Be5 Ne5 25.Ne5 Qe6+-) 24...Qe6 25.Bf5 Rf5 26.gf5+-) 23...hg4 (23...Kd8 24.Ne6 Qe6 25.Bf5+-) 24.hg4 (24.Ne6!? Nfe5 25.Nfg5 Nf3 26.Nf3 Rf3 27.Rb6 ab6 28.hg4+-) 24...Rh6 25.Bg6 (25.Reb1 Qc7 26.Rb6 ab6=+) 25...Rg6 (better 25...Rg8 26.Bf7 Bf7-/+) 26.Qg6+= Attacking the isolated pawn on g5 26...Nd6 27.Qh6 Rf3 (27...Nb5 28.Qf8 Nc3 29.Nc6 Qc6 30.Ng5 Bc5+-) 28.Nf3+- (28.ed6?! Rc3 (28...Bd4? 29.cd4 Nd4 30.Rc1 Nc6 31.Qg5+-) 29.Ne2 Rc4 30.Qg5 e5 31.Rd5 Rg4=) 28...Nb5 29.ab5 Nd8 30.Nd4 Bd4 31.cd4 Qb5 32.Qg5 Qd3 (32...Qb4 33.Rd1 Kd7 34.Qg7 Qe7 35.Qe7 Ke7 36.Bh4 Kd7 37.Bd8 Kd8 38.Ra1+-) 33.Qe7 (better 33.Rc1 Nc6 34.Bh4+-) 33...Bd7?? (33...Qd2 34.Re3 (34.Qe8?! Qe1 35.Kg2 Qe4 36.f3 Qc2 37.Bf2 a5+=) 34...Qc1 35.Kg2+-) 34.Qc5 (better 34.Rc1 Nc6 35.Qf8 Kc7 36.Bh4+-) 34...Nc6 35.Rc1 b6?? (better 35...Qd2+-) 36.Qd6 Qd4 (36...Qb5 37.g5 Qd3 38.Rc6 Bc6 39.Qc6 Kb8 40.Qe6 Qd1 41.Kg2+-) 37.Rc6 Bc6 38.Qc6 Kd8 (38...Kb8 39.Qe6 Kb7 40.Qf7 Ka6+-) 39.Qd6 (39.Bh4) 39...Kc8 40.Qe6 Kb7 41.Qd7 (41.Qf7 Ka6 42.e6 Qd1 43.Kh2 Qg4+-) 41...Ka6 42.g5 (42.e6!? Qd1 43.Kh2 Qg4+-) 42...Qd1 43.Kg2 Qh5 (43...Qd3 44.e6 Qe4 45.Kh2+-) 44.Qf5 (better 44.Qa4 Kb7 45.e6 Qe2 46.Qd7 Ka6+-) 44...Qe2 (44...d4+-) 45.e6 d4 46.Qe5 d3 47.Qe2 de2 48.f4 (48.f4 e1Q 49.Be1+-) 1–0. Nunes,M Correia (1815) – Brandao,J M Da Costa (1715), CCXC – Prof. Nilo Sales – Etapa, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Be7 7.c3 Qc7 8.Bd3 f6 9.ef6 Nf6= 10.Qe2 (10.0-0 0-0=) 10...h6 (10...0-0!?=) 11.Bg6+= Kf8 (11...Kd8 12.0-0+=) 12.a4 (12.0-0 Bd7+-) 12...Bd6 (better 12...Nd7+=) 13.Na3?? (13.Ba3!?+-) 13...a6 (better 13...Nd4 14.Qd3 Nf3 15.Qf3 a6-/+) 14.h3?? (14.Nc2 e5 15.Ba3 Ba3 16.Ra3 e4=+) 14...Bd7?? (better 14...Ne7 15.Bb1 Qc3 16.Kd1 Ne4-+) 15.Bd2 Rb8 (15...e5!?=) 16.0-0 (16.c4 b6+=) 16...e5 17.de5 Ne5 18.Ne5 Be5 19.Rfe1 Bd6 (19...Be8 20.Bf5 Bh2 21.Kh1+=) 20.Nc2 Be8 21.Nd4 Qe7 (better 21...Bf7!?+-) 22.Qf3+- Qd7? (better 22...Bg6 23.Re7 Be7+-) 23.Bf5 Qf7 (23...Bh5 24.Qh5 Nh5 25.Bd7 Nf6+-) 24.Ne6 (better 24.Bf4 Ne4 25.Re4 Bf4 26.Rf4+-) 24...Kg8 25.Nf4 (25.Bf4 Bf4 26.Nf4 Bd7+-) 25...Bd7+- 26.Bg6 Qf8 27.Nd5 Bc6 28.c4 (better 28.Nf6 Qf6 29.Qg4+-) 28...Nd5= 29.Qf8 Kf8 30.cd5 Bd5 31.Bc3 Bc6 32.Re6 Bc5 33.a5 Rg8? (better 33...Rc8+=) 34.Re5+- Bd6 35.Rf5 (35.Rd1!? Ba3 36.Rd3 Rh8 37.Rf5 Kg8+-) 35...Ke7 36.Rf7 Ke6 37.Bg7 (37.Re1 Kd5+-) 37...Rg7+- 38.Re1 (38.Rg7 Kf6 39.Rd1 Bb4-/+) 38...Be5 39.Rg7 Kf6 40.Re5! Kg7 (40...Ke5 41.Rh7 Combination) 41.Be4 Be4 (41...Kf6!? 42.f4 Be4 43.Re4 b6+-) 42.Re4+- b6 43.Re7 Kg6? (better 43...Kh8 44.Re6 ba5 45.Rh6 Kg7 46.Ra6 Rb1 47.Kh2 Ra1+-) 44.Re6 Kf5 (44...Kg7 45.Rb6 Ra8 46.f4+-) 45.Rb6 Ra8 46.Rh6 Kg5 47.Rb6 Kh4 48.Rb4 Kg5 49.f4 Kh4 (49...Kf6 50.g4+-) 50.f5 (better 50.Kh2 Rf8 51.Rb6 Rf4 52.g3 Kg5 53.gf4 Kf4 54.Ra6+-) 50...Kg3 (50...Kg5 51.g4 Rc8+-) 51.f6 (51.Rg4) 51...Rd8 (51...Rg8 52.f7 Rg5 53.f8Q Ra5 54.Qf3) 52.Rb3 (52.Rg4) 52...Kh4+- 53.f7 Ra8 54.Kh2 Kg5 (54...Rf8 55.Rf3 Kh5 56.g4 Kg5 57.Rf5 Kg6 58.h4+-) 55.Rf3 (better 55.Rg3 Kf6 56.Rg8 Rd8+-) 55...Rf8 56.g4 Kg6 57.Kg3 Rf7 58.Rf7 Kf7 59.Kf4 Kf6 60.h4 Kg7 61.Kf5 Kf7 62.h5 Kg7 63.g5 Kf7 64.h6 Kg8 (64...Ke8 65.h7 Kf8 66.h8Q Ke7 67.Qf6 Kd7 68.g6 Kc7 69.g7 Kd7 70.g8Q Kc7 71.Qgf7 Kc8 72.Qh8) 65.Kf6 Kh7 (65...Kf8 66.h7 Ke8 67.Ke6 Kd8 68.Kd6 Kc8 69.h8Q Kb7 70.Qg7 Kb8 71.Kc6 Kc8 72.Qc7) 66.g6 Kg8 (66...Kh8 67.g7 Kh7 68.Kf7 Kh6 69.g8Q Kh5 70.Qg3 Kh6 71.Qg6) 67.g7+- Kh7 68.Kf7 (68.Kf7 Kh6 69.g8Q Kh5 70.Qg3 Kh6 71.Qg6) 1–0. Perez,Flavio – Peres,Vincent, FRA–chTJ2, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Be7 7.c3 f5 8.Bd3 Bd7 9.h3 Qc7 10.g4 0-0-0 11.g5 (11.Rg1 g6+=) 11...g6 (11...Be8 12.Rg1=) 12.h4 h6 13.h5 (better 13.Rg1!?+=) 13...hg5=+ 14.Bg5 Rh5 15.Rh5 gh5 16.Nbd2 Na5 17.Rc1 Kb8 18.Qe2 Qb6 19.Qe3 (19.Be7 Ne7 20.Rb1 Qc6=+) 19...Qb2-/+ 20.Rc2 (20.Nb3 Nb3 21.ab3 Qb3 22.Qe2-/+) 20...Qb6 (better 20...Qa1 21.Ke2 Ba4-/+) 21.Be7= Ne7 22.Qg5 Nec6 (22...Nc8!?=) 23.Qh5+= Rc8 24.Qf7 Qd8 25.Rb2 (25.Nb3 Nb3 26.ab3 a6+=) 25...Ka8 26.Rb1 Nb8 27.Rc1 Qh8 (27...Rc7 28.Qf6 Qc8 29.Nb1=) 28.Ke2+= Nac6 29.Rg1 Nd8 30.Qf6 (30.Qg8 Qh5+/-) 30...Qh5 (30...Qe8 31.c4+=) 31.Rg7+/- Bc6 (better 31...Qe8 32.c4 dc4 33.Nc4 Bb5+=) 32.Rg8+- Be8 33.Qe7 Ndc6 34.Qd6?? (34.Qe6 Bd7 35.Qg6+- (35.Qd5 Ne7 36.Rg5 Nd5 37.Rh5 Nf4 38.Ke3 Nh5-/+)) 34...Rd8+= 35.Qc7 (better 35.Qa3+=) 35...f4 (better 35...Rd7 36.Qc8 Rd8 37.Qe6 Bf7=) 36.Qg7+/- Bf7 37.Bg6?? (better 37.Rd8 Nd8 38.Qf6+-) 37...Rg8-+ 38.Bf7 Qf3! (worse 38...Rg7 39.Bh5 b5 40.Nb3-/+) 39.Kf3 (39.Nf3 Rg7 Zwischenzug; 39.Kf3 Rg7 Zwischenzug) 39...Rg7 40.Bh5? (40.Be6 Ne7 41.c4 dc4 42.Bc4-+) 40...Nd8 41.Bg4 (41.Kf4 Rg1 42.c4 dc4 43.Nc4 Rc1-+) 41...Nbc6 (41...Rc7!? 42.Nb1-+) 42.Kf4 Ne7 43.Kg3 Ng6 44.f3 Ne7 45.f4 Nf5 46.Kf3 Nh6 47.Nf1 (47.Bh3-+) 47...Rg4 48.f5 ef5 49.Ne3 Ne6 50.Nd5 f4 51.Ke4 (51.Kf2 b5-+) 51...Ng5 52.Kd3 f3 0-1. zsolti_83 (2415) - elpepinillo14 (2495), Rated Blitz game, lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

6.d4 Be7 7.c3 f6 8.Bd3 fe5 9.de5 Qc7 10.Qe2 Bd7 11.0-0 0-0-0 12.Na3 a6 13.Rb1 Qa5 14.Nc2 Nh6 (14...Qa2 15.Be3 Rf8 16.Rb6+-) 15.Ncd4 Nf7 16.Nc6 Bc6 17.Nd4 Bd7 18.c4 dc4 19.Qf3 Qd5 (19...Bb4 20.Bc4 Ne5 21.Qb3+-) 20.Be4+- (20.Qf7 cd3 21.Qe7 Qd4+-) 20...Qd4? (better 20...Ne5 21.Qe3 Qc5 22.Bb7 Kc7+-) 21.Bb7 Kc7 22.Qf7 Rde8 23.Be3 (23.Ba6 Rhf8 24.Qg7 Bc6+-) 23...Qd3? (23...Qg4 24.Ba6 Bc6 25.f3+-) 24.Rfd1 (24.Ba6 Rhf8 25.Qg7 Rg8 26.Bb6 Kc6+-) 24...Qf5 (24...Rhf8 25.Qg7 (25.Rd3?! Rf7 26.Rd7 Kd7 27.Ba6 Rff8+-) 25...Rg8 26.Qh6+-) 25.Qf5 (25.Ba6!? Bc8 (25...Qf7 26.Rb7 Kc8 27.Ra7 Kb8 28.Rb1 Bb4 29.Rb4 Bb5 30.Rb5 Qb7 31.Rbb7 Kc8 32.Ra8) 26.Qf5 ef5 27.Bc4 f4 28.Bb6 Kb8 29.Bd4 Kc7+-) 25...ef5 26.Bb6 (better 26.Ba6 Rb8 27.Rbc1+-) 26...Kb7+- 27.Rd7 Kc6 28.Rc7 Kd5 29.f4 c3 (29...Ke6 30.Ba7 Rc8 31.Rb6 Kf7 32.Rbc6 Rc7 33.Rc7+-) 30.Rd1+- Ke6 31.Rc6 Kf7 32.Rc3 (32.e6 Kg6 33.Rc3 Bf6 34.Rg3 Kh5+-) 32...Rc8 33.Rcd3 (33.Bc7 g5+-) 33...Rc6 34.Be3 Rb8 35.R1d2 Rb1 36.Kf2 Bh4 (36...Rh1 37.h3+-) 37.g3+- Be7 38.Rb3 Rh1 (38...Rb3 39.ab3 Rc3 40.Ra2+-) 39.Kg2 Rhc1 40.Rb7 R1c2 41.Rbd7 Ke6 42.Kf3 Rd2 43.Rd2 Rc3 44.Ke2 Ra3 45.Bb6 g5 46.Be3 h5 47.fg5 (better 47.Rb2!?+-) 47...Re3= 48.Ke3 Bg5 49.Ke2 Bd2 50.Kd2 Ke5 (50...a5 51.Ke3 Ke5 52.a4+-) 51.Ke3+- a5 52.a4 Kd5 53.Kf4 Kc4 (53...Ke6 54.Kg5 Ke5 55.Kh5+-) 54.Kf5 Kb4 55.g4 hg4 56.Kg4 Ka4 57.h4 Kb3 58.h5 a4 59.h6 a3 60.h7 Ka2 61.h8Q Kb1 62.Qh1 Kb2 63.Qg2 Kb1 64.Qf1 Kb2 65.Qe2 (65.Qe2 Kc3 66.Qf3 Kb2 67.Qf2 Kb3 68.Qb6 Kc2 69.Qc6 Kb2 70.Qb5 Kc3 71.Qa4+-) 1–0. Blimke,D (2220) – Radziewicz,I (2405), TCh–Poland Lubniewice Poland, 2002. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

6.d4 Bb6

7.c3 Bd7 8.Bd3 Nge7 9.0-0 0-0 10.Ba3 (10.Na3 Na5+=) 10...h6 (10...f6 11.Nbd2=) 11.Nbd2+= f5 (11...Re8 12.Nb3+=) 12.Nb3+/- Rf7 13.Rb1 Na5 14.Bb4 Nb3 15.Qb3 (15.ab3 a5 16.Bd6 Bc6+=) 15...Bc6 (15...Nc6 16.Bd6+=) 16.a4 Ng6 17.Rfc1 (17.g3 Bc7+=) 17...Nf4 18.Bf1 g5 19.g3 (19.Ne1 g4+=) 19...Ng6 (19...g4 20.Nh4=) 20.h3 g4 21.hg4 fg4 22.Qc2 Kg7 23.Nh2 (23.Nd2 Ne5 24.Re1 Qf6 25.Re5 Qf2 26.Kh1 A) 26...Qg3?! 27.Bd6 (27.Re6? Qh4 28.Kg1 Qf2 29.Kh1 Rf5-+) 27...Qh4 28.Kg1+=; B) 26...Bc7 27.Re6 Rf5 28.Re7 Kg8 29.Qf5 Qf5 30.Rc7 Qf2-+) 23...Qg5 (23...h5 24.a5 Bc7 25.a6 ba6 26.Ba6=) 24.a5+= Bd8 25.Bg2 (25.a6 Bb6+=) 25...Be7 (25...Rc8 26.a6 b5 27.Qe2+=) 26.Qe2 (better is 26.c4!? dc4 27.Bc6 bc6 28.Be7 Ne7 29.Qc4+=) 26...h5+= 27.Re1 (27.a6 b6+=) 27...Raf8 28.Rf1 a6 29.Be7 (29.Qe3!? Qe3 30.fe3 Bb4 31.Rf7 Rf7 32.Rb4-/+) 29...Ne7-/+ (worse is 29...Qe7 30.c4 Qd7 31.cd5 Bd5 32.Be4+=; 29...Re7?! 30.c4=) 30.c4 dc4 31.Bc6 Nc6 32.Qc4 Qg6 33.Qc3 (33.Rb7 Rb7 34.Qc6 Rb2-+) 33...Qe4 34.Qd2 Nd4 (34...Kg6!? 35.Rbd1-+) 35.Rbe1 (35.Rfe1 Qd5 36.Rb6+=) 35...Nf3 (better is 35...Nb3!? 36.Qc3 Qa4-/+) 36.Nf3= Qf3 37.Qg5 Kh8 (37...Kh7 38.Qh5 Kg8 39.Qg6 Kh8 40.Re3 (40.Qe6?? Rh7 41.Qh6 Rh6 42.e6 Qh1) 40...Qe3 41.Qf7 (41.fe3?? Rf1 42.Kg2 R8f2) 41...Rf7 42.fe3 Rf1 43.Kf1-+) 38.Qh6+= Rh7 39.Qe6 h4 40.Re3 Qf7 41.Qf6 (41.Qf7!? Rff7 42.Re4+=) 41...Qf6= 42.ef6 hg3 (42...Rf6 43.gh4 Rh4 44.Re8 Kg7 45.Re7 Kh6 46.Rb7=) 43.Rg3 Rf6 44.Rg4 1–0. Povilaitis,Tomas – Portokalski,Yordan (1775), Batumi GEO, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

7.c3 f5 8.Bd3 Nge7 9.Rg1 0-0 10.g4 f4 11.Ba3 Qe8 12.Ng5 h6? (better 12...g6!?=) 13.Nh7+/- Rf7 14.g5 Rf5 15.Nf6 gf6 16.gf6 Ng6 17.Bf5 ef5 18.Qh5 Kh7 19.Bf8!! Qf8 (19...Qf8 20.Rg6 Deflection; 19...Nf8 20.Rg7 Mate attack) 20.Rg6 (better 20.Qg6!? Kh8 21.f7 Bd7 22.Qf6 Kh7+-) 20...Be6 21.Rg7 Qg7 22.fg7 Rg8?! (22...Nd4 23.Kd2 Nc6+-) 23.Nd2 Rg7 24.Nf3 Ba5 25.Kd2 Rg2 26.Kd3 Ne7 (26...Kg7 27.Rb1 Nd8 28.Rb5+-) 27.Qe8 (27.h4!? Bg8 28.Qe8 Nc6+-) 27...Rg7 28.Rg1 Rf7 29.Nh4 f3 30.Kd2 b5 31.Ng6! Ng6 (31...Ng6 32.Qe6 Double attack (32.Qe6 Pinning; 32.Qe6 Deflection; 32.Qe6 Decoy)) 32.Qe6 Rg7 33.Qf5 Bd8 34.Rg6! Rg6 (34...Rg6 35.Qd7 Double attack (35.Qd7 Decoy)) 35.Qd7 Rg7 36.Qd8 1-0. Harutjunyan,G (2445) - Maneluk,Daniil (2200), 23rd Voronezh Master Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

7.c3 f6 8.Bd3 fe5!? 9.Ne5 Ne5 10.de5 Ne7=.

7.c3 f6 8.Bd3 fe5 9.Ne5 Nf6 10.0-0+= 0-0 11.Re1 (11.Ba3 Re8+=) 11...Ne5= 12.Re5 (12.de5? Ne4 13.Be4 Bf2 14.Kh1 de4 15.Qd8 Rd8-+) 12...Bd7 13.Bg5 Qc7 14.h3 (14.Qf3 Qc6=) 14...Rae8 15.Bh4 Qb8 16.Nd2 Bc7 17.Nf3 (17.Re2 e5=) 17...Be5=+ 18.Ne5 Bc8 (18...Bc6 19.Qe2=+) 19.Qc2 (better 19.Bf6!? gf6 20.Qg4 Kh8 21.Qh5+=) 19...Qc7=+ 20.Re1 b6 21.Re3 Bb7 (21...Kh8=) 22.Rg3?? (better 22.Bf6 Rf6 23.Bh7 Kf8 24.Ng4+/-) 22...Ne4-/+ 23.f3 (23.Re3-/+) 23...Rf4 (23...Qc3 24.Qc3 Nc3 25.a3-+) 24.fe4 (24.Bg5 Rf3 25.Rf3 Ng5 26.Rf1=) 24...de4?? (better 24...Rh4 25.ed5 ed5-/+) 25.Bb5+/- Ref8 26.Bg5 R4f5 27.Be3 Re5 (27...a6!? 28.Be2 Kh8+/-) 28.de5+- Qe5 29.Rg5 Rf5? (29...Qf6 30.Qb3+-) 30.Rf5 (better 30.Bd4 Qb5 31.Rg7 Kf8 32.Rb7 Rf1 33.Kh2+-) 30...ef5 31.Bc4 Bd5 32.Qb3 Bc4 33.Qc4 Kf8 34.Bd4 Qa5? (better 34...Qf4+-) 35.Qc8 Kf7 (35...Ke7 36.Qc7 Ke6 37.Qg7 h5+-) 36.Qd7 Kf8 37.Bg7 (37.Kh2 Qc5 38.Bc5 bc5 39.Qf5 Ke7 40.Qc5 Ke6 41.Qa7 Kf6+-) 37...Kg8 38.Bf6 (better 38.Bd4 Kf8 39.Kh2+-) 38...Qc5 39.Bd4 Qf8 40.Kf2 (40.Qd5 Qf7 41.Qd8 Qf8 42.Qg5 Kf7 43.Qf5 Ke8 44.Qb5 Ke7 45.Qb4 Kf7 46.Qc4 Ke7 47.Qc7 Ke6 48.Qc6 Kf7 49.Qe4 Qa3 50.Qh7 Ke8 51.Qg6 Ke7 52.Qf6 Ke8 53.Qe6 Kf8+-) 40...f4 (40...h5 41.Qa7 Qf7 42.Qb8 Kh7 43.Ke3+-) 41.Qe6 Qf7 42.Qe4 Qa2 43.Kf3 Qf7 (43...Qa4 44.Qe6 Kf8 45.Qf6 Ke8 46.Qh8 Kd7 47.Qh7 Kd6 48.Kf4+-) 44.Qf4 (better 44.Qa8!? Qf8 45.Qa7 Qh6 46.Qb6 Qb6 47.Bb6 Kf7+-) 44...Qd5 (44...Qf4 45.Kf4 Kf7 46.Kg5+-) 45.Kg3 h5 (45...Qd8 46.Qg4 Kf7 47.Qg7 Ke6 48.Qh7 Qd6 49.Kf3 Qf8 50.Ke3 Qa3+-) 46.Qf6 Qf7 (46...h4 47.Kh2 Qd7+-) 47.Qf7 (47.Qh8) 47...Kf7+- 48.c4 Ke6 (48...a5 49.Kh4 Kg6 50.Bb6+-) 49.Kf4 (better 49.Bb6!? a6+-) 49...Kd6 50.Kg5 Kc6 (50...a5+-) 51.Kh5 a5 52.g4 a4 53.g5 a3 54.g6 b5 55.cb5 Kd5 56.Ba1 Kc5 57.g7 Kb5 58.g8Q a2 59.Qa2 Kc5 60.Qe6 Kb4 61.Bg7 (61.Qd5 Ka4 62.Bc3 Ka3 63.Qb5 Ka2 64.Qb2) 61...Kc5 62.Kg6 (62.Bc3 Kb5 63.Qd5 Kb6 64.Bd4 Kc7 65.h4 Kc8 66.Qc6 Kb8 67.Qd7 Ka8 68.Qc8) 62...Kb4 (62...Kb5 63.h4 Kb4 64.h5 Kb5 65.h6 Kc5 66.h7 Kb4 67.h8Q Kc5 68.Bd4 Kb4 69.Qb8 Ka4 70.Qa2) 63.h4 (63.Qc6 Kb3 64.h4 Kb4 65.h5 Kb3 66.h6 Kb4 67.h7 Kb3 68.Qc3 Ka4 69.h8Q Kb5 70.Qb8 Ka4 71.Qbb3) 63...Ka3 (63...Kc5 64.h5 Kb5 65.h6 Kc5 66.h7 Kb4 67.h8Q Kc5 68.Bd4 Kb4 69.Qb8 Ka4 70.Qa2) 64.h5 (64.Qb6 Ka4 65.Bc3 Ka3 66.Qb4 Ka2 67.Qb2) 64...Ka4 (64...Kb4 65.h6 Kb5 66.h7 Kb4 67.h8Q Kc5 68.Bd4 Kb4 69.Qb8 Ka4 70.Qa2) 65.h6 (65.Qb6 Ka3 66.Bc3 Ka4 67.Qb4) 65...Ka3 (65...Kb5 66.h7 Kb4 67.h8Q Kc5 68.Bd4 Kb4 69.Qb8 Ka4 70.Qa2) 66.h7 (66.Bc3 Ka4 67.Qc4 Ka3 68.Qb4 Ka2 69.Qb2) 66...Ka4 (66...Kb4 67.h8Q Kc5 68.Bd4 Kb4 69.Qb8 Ka4 70.Qa2) 67.h8Q Ka3 (67...Ka5 68.Qb8 Ka4 69.Qa2) 68.Qd8 (68.Qb8 Ka4 69.Qa2) 68...Kb4 (68...Ka4 69.Qd4 Kb5 70.Qeb6) 69.Qed7 (69.Qd4 Kb5 70.Qeb6) 69...Kc5 (69...Kc4 70.Qd5 Kb4 71.Q8a5) 70.Q7c7 (70.Qd5 Kb4 71.Q8a5) 70...Kb5 71.Qdb8 Ka4 72.Qca7 1-0. Horak,Martin (2330) - Sawlin,L (2385), Titled Tuesday 9th June, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

7.c3 f6 8.Bd3 f5 9.0-0+= Nge7 10.Ng5 0-0 11.f4 (11.Qh5 h6 12.Nf3 Bd7+=) 11...h6 (better 11...Nd4 12.Kh1 Ndc6-/+) 12.Nf3+= Bd7 13.Kh1 Qe8 14.Ba3 Rf7 15.Nbd2 Na5 16.c4 dc4 17.Nc4 Nc4 18.Bc4 Ng6 (18...Rc8 19.Rc1=) 19.Qd2+= Bc6 20.Bd6 Bc7 21.Bc5 Rd7 22.Qe3 a6 23.Bb3 (23.a4 b6 24.Bb4 a5=) 23...Bd5 (23...b6 24.Ba3=) 24.Nd2 (24.Bd5 Rd5 25.Rfb1 Qc6+=) 24...b6= 25.Ba3 b5 26.Bd5 Rd5 27.Rac1 Bb6 28.Nb3 Rd7 29.Bd6 Ne7 30.Nc5 Bc5 31.dc5 Nd5 32.Qf3 Rc8 33.Rfd1 Rf7 34.Rd5 ed5 35.Qd5 Qc6 36.Qc6 Rc6 37.e6 Rf6 (37...Rf8 38.Re1+=) 38.Re1 Rc8 (38...Rf8+=) 39.Be7 (better 39.c6!?+-) 39...Rg6= 40.h4 h5 41.Bd6 Re8 42.e7 Kf7 (42...Rg4 43.c6=) 43.Re5+= Rf6 44.Kg1 g6 45.Kf2 Re6 46.Rd5 (46.Ke3 Re5 47.fe5 Rc8+=) 46...Rc8 47.Rd3 Rc6 (47...Re7 48.Be7 Ke7 49.Rd5+=) 48.Kf3 (48.Re3 Rc8+=) 48...Rc8 (48...Ke8 49.Rd5=) 49.Kf2 (49.Re3 a5+=) 49...Re4 (49...Rc6 50.Re3 Rc8 51.Re6 Ke6 52.Ke3+=) 50.Ra3 (50.Re3 Rd4=) 50...Rc6 (50...Re7 51.Be7 Ke7 52.Ra6 Rc5 53.Rg6 Rc2 54.Ke3 Ra2 55.Rb6=) 51.Kf3 (51.Re3 Re3 52.Ke3 Rc8+=) 51...Re6 (51...Ke8 52.Rd3=) 52.Rd3 Re4 (52...Rc8 53.Re3+=) 53.Ra3 ½–½. Koop,Thilo – Schmidt,Niels_Peter, Schleswig Holstein–ch Cand, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5)

7.c3 f6 8.ef6 Nf6 9.Bd3 0-0 10.h4 (better 10.0-0=) 10...Qd6?? (better 10...e5 11.de5 Qe8-/+) 11.Ba3+- Qd8 12.Bf8 Qf8 13.Nbd2 Ne4? (better 13...e5 14.de5 Ng4+-) 14.Ne4+- de4 15.Be4 Na5 (15...Bd7 16.Qd3 h6 17.0-0+-) 16.Qd3 a6 (16...h6 17.Ne5 Qf6 18.Rh3+-) 17.Bh7 Kh8 (17...Kf7 18.Rh3 Ke8 19.Qg6 Kd8 20.Rg3+-) 18.Ne5 (18.Ne5 Qf6 19.Be4+-) 1-0. Linnemer,L (2160) - Ouhibi,Elies, ch-FRA Blitz Online Qual, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

7.Bd3 =.

7.c3 Nge7

8.Bd3 0-0 9.Bh7 Kh7 10.Ng5 Kg6 11.h4 Rh8 12.h5 (12.h5 Kh6 13.Qd3+-) 1–0. Hilbert,Stephan J – Piantadosi,Angelo, FICGS, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6)

8.Bd3 Nf5 9.Ba3 Bd7 10.0-0 Nce7 11.Nbd2 0-0 12.Bf5 ef5 13.Qb3 (13.c4 Bc6+=) 13...Be6= 14.Bd6 Qd7 (14...Re8 15.Ng5=) 15.Qa3 (15.a4 Rfc8+=) 15...Rfe8= 16.Be7 Qe7 17.Qe7 Re7 18.Rfc1 Rc7 19.Rc2 Ba5 20.Rac1 Rac8 21.Nb1 f4 22.h3 (22.Rb2 Bc3 23.Nc3 Rc3 24.Rc3 Rc3-/+) 22...Bf5 (22...b5 23.a3-/+) 23.Rb2+= Bb1 24.Rcb1 b6 25.Rb5 Rd8 (worse is 25...Rc3 26.Rd5 R3c7 27.Ng5+=) 26.R5b3 h6 27.Rc1 a6 28.Kf1 Rdc8 29.Ke2 Rc3 30.Rbc3 Rc3 (30...Bc3? 31.Kd3+-) 31.Rc3 Bc3 32.Kd3 Ba5 (32...Bb4 33.Nh4+=) 33.Nh2 (33.g3 fg3 34.fg3 f6+=) 33...Kf8 34.Ke2 Ke7 35.Kf3? (35.Nf3 f6-/+) 35...g5 (35...Bc3 36.Kf4 Bd4 37.Nf3 Bf2 38.g3-+) 36.h4 (36.Ke2 f6 37.ef6 Kf6 38.Ng4 Kg6 39.Ne5 Kf5 40.Nc6+=) 36...Bc3-+ 37.Kg4 Bd4 38.Nf3 Bf2 39.hg5 hg5 40.Kg5 Be3 41.Kf5 d4 42.Ke4 Kd7?? 43.Nd4= Bd4 44.Kd4 Kc6 45.Ke4 b5 46.Kf4 Kd5 47.g4 Ke6 48.g5?? b4 49.Ke4 a5 50.Kd4 a4 51.Kc4 b3 52.ab3 ab3 53.Kb3 Ke5 54.Kc2 Kf5 55.Kd2 Kg5 56.Ke3 Kg4 57.Ke2 Kg3 58.Ke1 f5 59.Kd1 Kg2 60.Kd2 f4 61.Ke1 f3 62.Kd2 f2 63.Ke2 f1Q 64.Ke3 Qf3 65.Kd4 Qe2 66.Kd5 Kf3 67.Kd6 Kf4 68.Kd7 Kf5 69.Kd8 Kf6 70.Kc7 Qe3 71.Kc6 Ke6 72.Kb5 0–1. Matasaru,Stephanie – Vulpe,Raisa_Georgiana, Calimanesti ROM, Ch U10 (g), 2014. (=1.e4 e6 2.Nf3+= d5 3.e5 c5 4.b4 Nc6)

8.Bd3 Nf5 9.Nbd2 0-0 10.Nf1 (10.Ba3 Re8+=) 10...f6 11.g4 (11.ef6 Qf6 (worse 11...Rf6 12.Bg5+-) 12.Bg5 Qf7=) 11...fe5=+ 12.gf5 e4 13.Rg1 (13.Ng5 ed3 14.Qh5-/+) 13...ed3 14.Bh6 Rf7 15.Ng5 (15.fe6 Qe7-/+) 15...Rf5 16.Ne3 Rf6 17.Bg7 Rg6 18.Bh6 Qe7 19.Qh5 (better 19.Nf3 Rg1 20.Ng1-+) 19...Ba5 20.Kd2? (20.Kf1 Bc3 21.Nh7 Rg1 22.Kg1-+) 20...Qf6 (better 20...Bc3 21.Kc3 Qa3 22.Kd2 Qb2 23.Nc2 Qc2 24.Ke3 Ne7-+) 21.Nf3= Ne7?? (21...Nd4 22.Nd4 Qd4 (22...Qf2 23.Kd3 Qf7 24.Raf1+-) 23.Rg6 hg6 24.Qg6 Kh8+-) 22.Bg5+- (22.Kd3 Nc6 23.Nh4 Kf7+-) 22...Qf7 23.Be7 Qe7 24.Rg6 hg6 25.Rg1 (25.Qg6 Kf8 26.Rg1 Bc3 27.Kd3 Qf7 28.Qh6 Ke8 29.Qh8 Qf8+-) 25...Bc3 26.Kd3 (26.Kd1 Qg7 27.Rg6 Bd7+-) 26...Bd4 27.Nd4 Qa3 (27...Kf8 28.Qh8 Kf7 29.Qh7 Kf8 30.Qg6 Qf7 31.Qh6 Ke8+-) 28.Nb3 Qa6 29.Kd2 Qa2 30.Nc2 Qb3 31.Rg6 (31.Qg6 Kf8 32.Qh7 Qc3 33.Kc3 d4 34.Nd4 e5 35.Rg8) 31...Kf8 (31...Kf7 32.Qh7 Ke8 33.Rg8) 32.Qh7 Bd7 (32...Qc3 33.Kc3 d4 34.Nd4 e5 35.Rg8) 33.Rg8 1–0. Hernandez Alvarez,Tania R (2180) – Salazar Gould,Melanie (1635), Championship Nacional Clasificatorio Fe, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.c3 Nge7)

8.Bg5 Bd7 9.Bd3 Rc8 10.Na3 a6 11.0-0 Ba7 12.Nc2 Na5 13.Bd2 Nc4 14.Bc4 Rc4 15.Rb1 Qc8 16.Ne3 Rc7 17.Qb3 0-0 18.Rfc1 Nc6 19.Ne1 Na5 20.Qb4 b6 21.f4 Nc4 22.Nc4 Rc4 23.Qd6 b5 24.Nf3 Qc6 25.Qe7 Bb6 26.Qh4 Ba5 27.Qe1 Rc8 28.Rb3 Bb6 29.Rcb1 Ba5 30.Rc1 Ra4 31.Rb2 Ra3 32.Rbc2 Qc4 33.Qf1 Qf1 34.Kf1 Ra4 35.Ne1 Rac4 36.g3 Bd8 37.Nd3 Be7 38.Nb2 R4c7 39.Nd3 a5 40.Ne1 (better is 40.Ke2!?-/+) 40...Ba3-+ 41.Rb1 b4! 42.Bc1 Ba4 43.Rf2 Bc1 44.Rc1 Rc3 45.Rb1 Rc1 46.Rc1 Rc1 47.Rd2 Bb5 48.Kf2 Bc4 49.Nc2 b3 50.ab3 Bb3 51.Ne3 a4 52.Rb2 g6 53.Ke2 a3 54.Rb3 a2 55.Ra3 a1Q 56.Ra1 Ra1 57.Kf3 Ra4 58.g4 Rd4 59.h4 Kf8 60.f5 gf5 61.gf5 Rh4 0–1. Antipova,Anastasia – Vasilevich,Irina, RUS–ch U12 Girls, 1997. (=1.e4 c5 2.b4 e6 3.bc5 Bc5 4.Nf3 d5 5.e5 Nc6 6.d4 Bb6)

8.Bd3 Bd7

9.0-0 0-0 10.Bh7 Kh8?? (better 10...Kh7 11.Ng5 Kg6=) 11.Bd3 (11.Ng5 g6 12.Qf3 Nf5 13.Bg6 Qg5 14.Bg5 fg6 15.Bf6 Kg8+-) 11...Ng8? (better 11...Qe8+-) 12.Ng5 f6 (12...Nh6 13.Nh7 Re8+-) 13.Qh5 Nh6 14.Qg6 fg5 15.Qh7 1–0. Sobek,Michal (1895) – Mezes,Kristof, MSR Deti a Mladeze CH12, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.c3 Nge7)

9.0-0 Na5 10.Na3 a6 (10...Rc8 11.Qc2=) 11.Rb1 Rc8 12.Bd2 Ba7 13.Re1 (13.Ng5 h6 14.Qh5 g6+=) 13...b5 14.Ng5 h6 15.Nh3 Nc4 (15...0-0 16.Qg4 Kh8 17.Qh5+=) 16.Nc4 dc4 17.Be4 Bc6 18.Qg4 (18.Bc6 Nc6 19.Qg4 g6+=) 18...Be4= 19.Re4 Ng6 (19...Nf5 20.a4 ba4 21.Rb4=) 20.Nf4 Ne7? (better 20...Nf4 21.Bf4 g5+=) 21.Qg7+- Rg8 22.Qh6 Nf5 23.Qh5 Qa5 (23...Qe7 24.Qd1+-) 24.Rbe1 (better 24.Ne6 Qa2 25.Rd1 Qc2+-) 24...Bd4? (24...Nd4 25.Nd5 Rg6 26.Nf6 Ke7+-) 25.Ne6 (25.cd4?! Qd2 26.Ne6 Qh6 27.Qh6 Nh6+-) 25...Bc3 (25...Bf2 26.Kf2 Qb6 27.Nd4 Nd4 28.Rd4 Rc6+-) 26.Bc3 (26.Qf5 Bd2 27.Ng7 Rg7 28.Qc8 Qd8 29.Qd8 Kd8 30.Rd4 Ke7 31.Rd2 Rg6+-) 26...Qc3 27.Qf5 Rc6 28.Nd4 Rg2 (28...Rc5 29.Qh7 Rg2 30.Kg2 Qa3 31.Qg8 Kd7 32.e6 Kc7 33.ef7 Rd5 34.Re7 Kb6 35.R1e6 Qd6+-) 29.Kg2 Rg6 30.Kh1 Qd3 31.Qc8 (31.Qc8 Ke7 32.Nf5) 1–0. Cabot Muntane,Jordi (2270) – Martinez,M (1880), Manresa op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.c3 Nge7)

9.0-0 Na5 10.Ng5 h6 11.Qh5 g6 12.Qh3 a6 13.f4 (13.Nf3!?+=) 13...Bb5= 14.Bb5 ab5 15.Ba3 Nc4 16.Bb4 Ba5 17.Ba5 Ra5 18.Nf3 Ne3 19.Rf2 Qc8 20.Nh4 N7f5 (20...Nc4!?=) 21.Nf5+= Nf5 22.g4 Ne7 23.Nd2 h5 24.Kh1 Ra3 25.Nb3 b6 26.Rg1 Kd7 27.f5 (27.g5!?=) 27...hg4+= 28.fe6 fe6 29.Qg4 Qc3 30.Rf6? (better is 30.Qg5+=) 30…Ra2-+ 0–1. Rotov,Igor – Huebner,R (2595), Puhajarve EST, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

9.0-0 Ng6 10.Ba3 Nf4 11.Bc2 Na5 12.g3 (12.Re1 Rc8=) 12...Ng6= 13.Nfd2 Bb5 14.Ba4 (14.Re1 Rc8=) 14...Qd7 15.Bb5 Qb5 16.Bb4 Rc8 (16...Nc6 17.a4 Qd3 18.Nb3 Qd1 19.Rd1=+) 17.a4 Qd7 18.Na3 a6 19.Rc1 (19.Nb3 Nc6=) 19...Nc6 20.Bd6 (20.Nb3 Qd8=) 20...Bc7=+ 21.Bc7 Rc7 22.Nb3 b6 (22...Qe7 23.Nc2=+) 23.c4 Nge7 24.c5 Nc8 (24...bc5 25.Nc5 Qc8 26.Re1=) 25.cb6 (25.Qe2 Nb8 26.cb6 Nb6 27.Rc7 Qc7+=) 25...Nb6= 26.Nc5 Qc8 27.Rb1 Nd7 28.Nd7 Qd7 29.Qd3 Ra7 (29...0-0 30.Rb6=) 30.Rb6 Attacking the isolated pawn on a6 30...0-0 31.Rc1 (31.Rfb1 Na5=) 31...Rc7 32.Nc2 (32.Qe3 Ra8=) 32...Rb8 (better 32...Rfc8!?=+) 33.Qa6+= (33.Ra6?? Nb4 34.Rd6 Nd3 35.Rd7 Rd7-+) 33...Rb6 (33...Rbc8 34.Qd3=) 34.Qb6+- Rb7 35.Qc5 Rc7?? (better 35...Nd8+-) 36.Nb4+- Nb4 37.Qc7 Qc7 38.Rc7 h6 (38...g5 39.a5 Kg7 40.Rb7+-) 39.a5 Kf8 (39...h5 40.Rb7 Na6 41.Rb6+-) 40.Kf1 (40.Rb7 Na6+-) 40...f6 (40...h5 41.Rb7 Na6 42.Ra7+-) 41.ef6 gf6 42.Rb7 Nc6 (42...Na6+-) 43.a6 e5 44.a7 (better 44.Rc7 Ke8 45.Rc6+-) 44...Na7 45.Ra7 ed4 (45...Ke8 46.de5 fe5 47.Ra5+-) 46.Rd7 (46.Ke2 Kg8+-) 46...Ke8 47.Rd5 1–0. Winterberg,Johanna – Kolb,Verena, German Youth Championship Open B, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.Bd3 Bd7 8.c3 Nge7)

9.0-0 Ng6 10.Na3 0-0+=.

9.0-0 Ng6 10.g3 0-0 11.h3 f6 12.ef6 (better 12.Ba3!? Rf7 13.Bd6=) 12...Qf6-/+ (worse 12...Rf6 13.Bg5+/-) 13.Kg2 e5 14.de5 (14.Bg6 Qg6 15.de5 Rae8-/+) 14...Nge5 (14...Qf3 15.Qf3 Rf3 16.Bg6-+) 15.Ne5 Ne5 16.Be2 Bc6 (better 16...Rad8 17.f4 Qf5-+) 17.Kh2?? (better 17.f4 d4 18.Kh2-/+) 17...Qf2!-+ (17...Bf2?! 18.Bf4 Bc5 19.Nd2-/+) 18.Rf2 Rf2 19.Kh1 d4 20.Kg1 d3! 21.Qb3 (21.Bd3 Rd2 Mate attack) 21...Rf7 22.Kh2 de2 (22...de2 23.Be3 e1Q 24.Qf7 Nf7 25.g4 Bc7 26.Bf4 Bf4) 0-1. Van Foreest,Lucas (2530) - Edouard,R (2640), chess24.com INT blitz, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

9.0-0 h6 10.Na3 a6 11.Nc2 (11.Rb1 Na5+=) 11...Qc7 (11...Ba5 12.Rb1+=) 12.Ne3 Ng6 (12...Ba5!? 13.Bd2 0-0+=) 13.Bg6+- fg6 14.Qc2 Ne7 15.Ba3 Nf5 16.g4 Kf7? (better 16...Ne7+-) 17.gf5+- gf5 18.Bd6 Qd8 (18...Qc6 19.Qb3 Bd8 20.c4 dc4 21.Nc4+-) 19.c4 (19.Qb3 Rc8+-) 19...dc4 20.Qc4 (20.Nc4 Bc6 21.Qc3 Bd5 22.Nb6 Qb6+-) 20...Rc8 (better 20...f4 21.Ng2 Bb5+-) 21.Qb3 g6 (21...Bb5 22.Rfb1 f4 23.Ng2+-) 22.a4 Bc6 (22...Rc6 23.a5! Bc7 24.Qb7+-) 23.d5 ed5 (23...Bd7 24.Rfb1+-) 24.Nd5 Ba7 (24...Kg7 25.Nb6 Bf3 26.Qf3 Rc6+-) 25.Nf4 Kg7 26.Ne6 Kh7 27.Nd8 Rhd8 28.Qf7 (28.Qf7 Kh8 29.Be7 Bf2 30.Kf2 Rd2 31.Nd2 Rg8 32.Bf6 Rg7 33.Qg7) 1–0. Lam,P (2015) – Edward Dappa,Rachael, Open Coventry ENG, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.c3 Nge7)

9.Ba3 Qc7 10.Bd6 Qd8 11.0-0 Nc8 12.Ba3 Ba5 13.Qc2 h5 (13...N8e7 14.Nbd2+/- (14.Bh7 g6 15.Ng5 Nf5+=)) 14.Nbd2 g5 15.Bg6 (15.Nb3 g4 16.Nfd2+/- (16.Na5?! Qa5 17.Bb4 Nb4 18.cb4 Qb6=)) 15...Bc3 (15...g4!? 16.Ne1 Nb6+=) 16.Bf7 Kf7 17.Qc3 N8e7? (17...g4 18.Ne1 Qa5 19.Qa5 Na5 20.f3+=) 18.Nb3?? (18.Ng5 Kg8 19.Be7 Ne7+-) 18...Rc8? (better is 18...Nf5+/-) 19.Nc5 (better is 19.Ng5 Kg8 20.Rac1+-) 19...b6? (19...Nf5 20.Nb7 Qg8+-) 20.Nb7 (20.Ng5 Kg6 21.Nge6 Be6 22.Ne6 Qg8 23.Qg3 Kh7 24.Ng5 Kh6+-) 20...Qg8 (20...Qf8 21.Nd6 Kg6 22.Nc8 Bc8 23.Qc2 Qf5 24.Qa4+-) 21.Nd6 Kf8 (21...Kg7 22.Nc8 Qc8+-) 22.Nc8 Bc8 (22...g4 23.Nh4 Rh7 24.Ne7 Ne7 25.Qc7+-) 23.Qc6 g4 24.Qc8 Kf7 25.Qg8 (better is 25.Ng5! Kg6 26.Qd7 Kg5 27.Qe7 Kg6+-) 25...Rg8 26.Nh4 (26.Nh4 Ng6 27.Ng6 Kg6 28.f3+-) 1–0. Nordquelle,Daniel (1870) – Johannsson,Birkir Isak, Reykjavik Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

9.h4 Qc7 10.h5 h6 11.Ba3 Na5 12.Bd6 Qc6 13.Be7 (13.Nfd2 Nf5 14.Bb4 Qa4=) 13...Ke7 14.Rh4 (14.Nfd2 Kf8=) 14...Nc4 15.Qc1 (15.Qb3 Rhc8=) 15...Rac8 (15...Rhc8 16.Rg4 Kf8 17.Na3 Na3 18.Qa3 Kg8 19.Rc1=) 16.Rg4= Kf8 17.Kf1 (17.Na3 Na3 18.Qa3 Kg8+=) 17...Bd8 18.Kg1 b5 (18...Kg8 19.a4=) 19.a3 Na5 20.Qd1 Nc4 21.Ra2 a5 (21...Kg8 22.Nfd2=) 22.Kh2 (22.Nfd2 Kg8=) 22...Be7 23.Rf4 (23.Nfd2 Nd2 24.Qd2 Bg5+=) 23...Ke8 (23...f5 24.Nh4 Bg5 25.Ng6 Kg8 26.Rf3=) 24.Ng1 (24.Rg4 Kf8=) 24...a4 (24...Qc7 25.Qf3 f5 26.Qg3=+) 25.Qg4 (25.Qf3 f5=+) 25...Bg5=+ 26.Rf3 Rf8 (26...f5 27.Qh3=) 27.Nh3 f6 28.Ng5 hg5 (worse 28...fg5 29.Rf8 Kf8 30.f4+-) 29.h6 gh6 (29...Rh8 30.h7 Ke7 31.Qh5+=) 30.ef6 (better 30.Qh5!? Kd8 31.Qh6+/-) 30...e5 31.Qh5 Kd8 32.Bg6? (32.Bc4 e4 33.Bd5 Qd5 34.c4 (34.Qh6?? Kc7 35.Rh3 Bh3-+) 34...Qd6 35.Rg3 Rf6 36.Qe2-+) 32...e4-+ 33.Rg3 (33.Rf5 Bf5 34.Bf5 Rc7 35.Qh6 Qd6 36.Kg1 Qf6 37.Qf6 Rf6-+) 33...Qf6 (33...Rf6!? 34.Bh7-+) 34.Nd2 Nd2 35.Rd2 Kc7 (35...Rc6!? 36.Be4 de4 37.Qe2-+) 36.Rb2 (better 36.Kg1-+) 36...Rg8?? (better 36...Qg7-+) 37.Bf7-/+ Rg7 (better 37...Rgd8!?-/+) 38.Bd5= Re8 (38...Re7 39.Re2 Qf5 40.Ba2=) 39.c4 bc4 40.Rb7 (40.Qd1 Rc8=) 40...Kc8=+ 41.Ra7 (41.Rb4 Qf2 42.Bc4 Qf6=) 41...Kd8 (41...Qd4!? 42.Ra8 Kc7 43.Re8 Be8 44.Qe8 Qd5=+) 42.Ra8 Ke7 43.Re8 Be8 44.Qe2 h5?? (better 44...Qd4 45.Be4 Kf8=+) 45.Qe4+/- (45.Qe4 Kd8 46.Bc4+-) 1-0. Wirig,A (2500) - Playa,M (2375), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4)

9.h4 Rc8= 10.Rh3 h6 (10...Ba5 11.Rg3 Qc7 12.Be3= (worse 12.Rg7 Nd4 13.Kf1 Nef5 14.Bf5 Nf5-/+)) 11.h5 a6 12.Rg3 Kf8 13.Nh4 (13.Kf1!?=) 13...Nd4=+ 14.Qg4 Rg8 15.Ba3 Ndf5 16.Nf5 (16.Bf5 Rc4 Decoy; 16.Nf5 ef5 Decoy) 16...ef5 17.Bf5 Bf5 (17...Rc4 18.Qf3 Bf5 19.Qf5 Re4 20.Kf1=+) 18.Qf5= Bc5 19.Qf4 Ba3 20.Na3 Nc6 21.Rd1 Qe7 22.e6 (22.Nc2!? Qe5 23.Qe5 Ne5 24.Rd5=) 22...Qe6=+ 23.Re3 Qd7 (23...Qf6!? 24.Qf6 gf6 25.Rd5 Rg2=+) 24.Nc4+= Re8 25.Nb6 Attacking the isolated pawn on d5 25...Re3 26.fe3 Qe6 27.Rd5 (27.Nd5 Qe5+=) 27...g5= 28.Qd6 Qd6 29.Rd6 Kg7 30.Rd7 Re8 31.Ke2 (worse 31.Rb7 Re3 32.Kd1 Rc3-/+) 31...Re7 32.Rd5 (32.Re7 Ne7 33.e4 Nc6+=) 32...Re5 33.Rd7 Ra5 34.a4 (worse 34.Rb7 Ra2 35.Kd3 Rg2-/+) 34...Rc5 35.Rb7 Rc3 36.Nd5 Rc4 (36...Rc2 37.Kf1=) 37.Rb6 (37.Rc7 Rc5=) 37...a5 38.Ra6 Rc5 39.e4 Ne5 (39...f5 40.Nc7 Nd4 41.Kd3 Rc7 42.Kd4 fe4 43.Ra5+-) 40.Kd2 Nc4 (40...f5 41.Ra7 Nf7 42.Nc7+=) 41.Kc3 Nb6 42.Kd4 Na4 43.Ne3 Rc7 (43...Rb5 44.Nf5 Kh7 45.Rh6 Kg8 46.Rc6+-) 44.Nf5 Kh7 45.Rh6 (45.Ra5 Rd7 46.Ke3 Nb2+-) 45...Kg8 46.Ra6 Nc5 47.Ra8 Kh7 48.Kd5 (48.Ke5 Nb3+-) 48...Ne6 (48...Nb3!?+-) 49.Ra5+- Nf4 50.Kd6 Rc4 51.Ng3 f6 52.Ra7 Kh6 (52...Kh8 53.h6+-) 53.Nf5 Kh5 54.g4! Kg4 55.Ne3 Kf3 56.Nc4 Ke4 57.Ke7 Nh5 58.Kf7 g4 59.Kg6 (better 59.Nd6!? Kf3 60.Ra3 Kf4+-) 59...Nf4 60.Kf6 g3 61.Re7 Kf3 62.Nd2 Kf2 63.Ne4 Kf3 64.Ng5 (64.Kf5 Ne2 65.Ng5 Kf2 66.Nh3 Kf3+-) 64...Kf2? (64...Kg4 65.Re1 g2+-) 65.Kf5 Ne2 66.Kg4?? (better 66.Nh3 Kf3 67.Ra7 Nd4 68.Kg5+-) 66...g2+- 67.Nh3 Kf1 ½–½. Weng,Annegret (2150) – Hausmann,Ilka (2165), DDMM (Women), 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6 5.bc5 Bc5 6.d4 Bb6 7.c3 Nge7 8.Bd3 Bd7)

5.bc5 d4

6.Ba3 Nge7 7.Bd3 Nf5 8.0-0 Qd5 (8...Qa5 9.c3 dc3 10.Qb3 cd2 11.Bf5 ef5 12.Nbd2+=) 9.Re1 (9.Qe2 A) 9...Bc5? 10.c4 dc3 11.Nc3+- (11.dc3?! Ba3 12.Na3 0-0+=); B) 9...Qd8+/-) 9...Bc5 10.Be4 Qc4 11.d3 Qb5 12.c4 Qa5 13.Bc5 Qc5 14.Nbd2 0-0 15.Nb3 Qb6 16.a4 (16.Rb1 Qd8+/-) 16...Qd8 17.Bc6 bc6 18.g4 Nh4 19.Nbd4 (19.Nfd4 f5+/-) 19...c5 (19...Nf3 20.Nf3 c5 21.Qe2+=) 20.Nh4 (20.Nb3!?+/-) 20...Qh4 (20...Qd4 21.Qe2=) 21.Nb5 Bb7 22.Nd6 Bc6 23.Re3 f6 24.Qe2 fe5 25.Rg3 (25.Re5?? Bf3 26.Qe4 Be4 27.Ne4 Qg4 28.Kh1 Rad8-+) 25...Rf4 (better 25...Qf6!?=) 26.Qe5+/- Raf8 (better 26...Qf6!? 27.Re1 Qe5 28.Re5 Rb8+/-) 27.Qe6 Kh8 28.Nf5 Rf2?? (better 28...Qf6 29.Qf6 Rf6+-) 29.Kf2 (better 29.Nh4 R2f6 30.Qe3+-) 29...Qh2+= 30.Ke3 Re8 31.Qe8 Be8 32.Rf3?? (better 32.Rb1 g6 33.Rb8 gf5 34.Re8 Kg7 35.Kf3 Qh1 36.Kf2=) 32...Qe5-+ 33.Kf2 Qa1 34.Nd6 (34.d4-+) 34...Qd4 35.Ke2 Qd6 36.Re3 (36.a5 Bd7 37.Kd2 Qh2 38.Kc3 Kg8-+) 36...Bc6 (better 36...Ba4 37.Ke1 Qd4 38.Kd2-+) 37.Rf3 (37.a5 Qf4-+) 37...Bf3 38.Kf3 0-1. zsolti_83 (2530) - PchelkinVK (2445), Rated Bullet game, lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.Ba3 Qa5 7.Bd3 (7.Qe2 Bc5 8.Qb5 Bb6+= (worse 8...Ba3 9.Qa5 Na5 10.Na3+/-)) 7...Bc5= 8.Bc5 (8.Bb2!?=) 8...Qc5=+ 9.0-0 Nge7 (9...Ne5 10.Ne5 Qe5 11.Re1=+) 10.a4 (10.Re1 Nd5=) 10...Ng6 Can e5 get defended? (10...Ne5 11.Ne5 Qe5 12.Re1-/+) 11.Re1 (11.Bg6!? hg6 12.Re1=) 11...Nge5=+ 12.Ne5 Ne5 13.Na3 (13.Be4=+) 13...0-0 (13...Nd3 14.cd3 0-0 15.Qf3-/+) 14.Re4?? (better 14.Bh7 Kh7 15.Qh5 Kg8 16.Re5=) 14...a6 (better 14...Nd3 15.cd3 Bd7-+) 15.Rb1?? (15.Qe2 Nd3 16.Qd3 e5-/+) 15...Rb8 (better 15...Nd3 16.cd3 Qa3 17.Rd4 b5-+) 16.Rb3 (16.Qe2 Qa3 17.Re5 Qa4-/+) 16...Ng6 (16...Bd7 17.Qe1 Ng6 18.c3 Ba4 19.Rb4-+) 17.h4? (better 17.c3!?-/+) 17...e5 (17...Bd7 18.h5 Ne7 19.Nc4 Ba4 20.Rb1-+) 18.h5 Ne7 (18...Nf4 19.Bc4-+) 19.Nc4 f6 20.h6 g6 21.Qe2 Be6 (better 21...Bf5 22.Rh4 Rfc8-+) 22.Ne5=+ Bb3 (better 22...fe5 23.Re5 Nd5=) 23.cb3?? (23.Nd7 Qd6 A) 24.Nf8?! Bf7 (worse 24...Rf8 25.Re7 Bd5 26.Bc4+/-; 24...Kf8?! 25.cb3 Ng8 26.Re6+=; 24...Ba4 25.Re6 Qe6 26.Qe6 Kf8 27.Qf6 Ke8 28.Qh8 Kd7 29.Qd4 Kc7 30.Qe5 Kd7 31.Qb8+-) 25.Nd7 Re8= (worse 25...Qd7 26.Re7 Qc6 27.Qg4+/-); B) 24.Re7+-) 23...fe5 (better 23...Qc1 24.Qf1 Qf1 25.Kf1 fe5 26.Re5 Rfe8-+) 24.Bc4=+ Kh8 25.Re5 Qd6 26.Re7 Rf6 27.Qe4 The pawn on b7 gets attacked 27...b5 (27...Rf4!? 28.Qe2 Rbf8=) 28.ab5+= ab5 29.Bd3 (better 29.Bb5 Rf4 30.Re6+=) 29...Rbf8?? (29...Rf4 30.Re6 Re4 31.Rd6 Re1 32.Kh2=) 30.f3 (better 30.Qb7 Qe7 31.Qe7+-) 30...R6f7+= 31.Rf7 Rf7 32.Bb5 Qf6 33.Bc4 Rf8 34.Qd3 (34.b4 Qd6+=) 34...g5 (34...Re8 35.g3=+) 35.Qe2 (better 35.Qe4!?=) 35...Qh6=+ 36.Qe7 Qf6 (36...Qf6 37.Qf6 Rf6=+). zsolti_83 (2655) - FleddyVanHelgie (2665), Rated Bullet game, lichess.org, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.Bb5 Bc5 7.0-0 (7.Ba3 Ba3 8.Bc6 bc6 9.Na3 Ne7=) 7...Nge7 8.d3 (8.Ba3 Qb6 9.Qe2 a6=) 8...a6 9.Ba4 (9.Bc6!? Nc6 10.c4=) 9...b5=+ 10.Bb3 Qc7 11.Qe2 Bb7 12.Bf4 Rc8 (12...0-0 13.a4-/+) 13.Nbd2 Nb4 14.Ne4 Be4 15.Qe4 Qc6 16.Qe2 Nbd5 17.Bg3 (17.Bd2!?=+) 17...Nc3-/+ 18.Qd2 Nf5 19.a3 h6 20.Rfe1 Qc7 (20...0-0 21.Bf4-/+) 21.Qf4 Qe7 (21...Be7 22.h4-/+) 22.h4 (22.a4 b4=+) 22...0-0 23.h5 (23.a4 b4-/+) 23...Rfd8 24.Bh2 Nd5 (24...a5 25.g4 Nh4 26.a4-/+) 25.Bd5 Rd5 26.g4 (26.Reb1 Qd7-/+ (worse 26...Ba3 27.g4+/-)) 26...Nh4 27.Nd2 (27.Nh4!? Qh4 28.Reb1-/+) 27...Ba3-+ 28.Bg3 Bb4 29.Bh4 (29.Re2 Ra8-+ (29...Rc2?! 30.Bh4 Qa7 31.g5=)) 29...Qh4 30.Nf3 Qe7 (30...Qd8 31.Re4 a5 32.g5-+) 31.Re2 (31.Re4 Rc2 32.Ra6 Qb7-+) 31...a5 32.g5 Bc3 33.Ra2 Kh7 34.Kg2 a4 35.Re4 Rcd8 36.Qg3 a3 (36...Ra8 37.Rg4-+) 37.gh6 (37.Rf4 Rf8-/+) 37...gh6-+ (37...Kh6 38.Rg4 Qf8 39.Qf4 Kh7 40.Ng5 Kg8 41.h6+-) 38.Rg4 b4 39.Nh4 f5 (39...Qb7!? 40.Kh2 Rf8-+) 40.Rg6-/+ Qf7?? (better 40...Bd2-/+) 41.Qf4+/- Qf8 42.Re6 R5d7 43.Nf5 Rg7 (43...Kh8+-) 44.Kf3 (better 44.Kf1 Bd2 45.Qe4+- (45.Qd2?! Qf5 46.Rh6 Kg8 47.Qb4 Qf3 48.Qb3 Rf7+=)) 44...Rg5?? (better 44...Bd2! 45.Rh6 Kg8 46.Qd2 Qf5 47.Qf4 Qd7+/-) 45.Rh6+- Qh6 46.Nh6 Kh6 47.Qf6 Kh5 48.Qd8 Rf5 49.Ke4 (better 49.Kg3 Rg5 50.Kh3 Be1+-) 49...Rf2 50.Qh8 (50.e6 b3 51.Qh8 Kg4 52.Qg7 Kh3+-) 50...Kg4 51.Qg7 Kh3 52.e6 Re2 53.Kd5 b3 (53...Re3 54.e7+-) 54.Qh6 (better 54.Ra3 Rg2 55.Qh8 Kg3+-) 54...Kg2 55.Qg5 Kf1 56.Qc1 (56.Qf4 Ke1 57.Qh4 Kd1 58.Qh1 Re1 59.Qf3 Kc1 60.cb3 Bb2+-) 56...Kf2 (56...Kg2 57.Qd1 Re1 58.cb3 Kg3 59.Qe1 Be1 60.e7+-) 57.Ra3 (57.Qf4 Ke1 58.Qh4 Kd1 59.Qh1 Re1 60.Qf3 Kc1 61.cb3 Bb2+-) 57...b2 (57...Bd2 58.Qh1 b2 59.Ra8+-) 58.Qf4 Ke1 59.Rb3 Kd1 60.Qf3 Kd2 61.Qe2! Ke2 62.e7 Kd2 63.Rb2! Bb2 64.e8Q Bc3 (64...Kc2 65.Qe2 Kc3 66.Qe1 Kb3 67.Kc5+-) 65.Kc4 Kc2 (65...Bb2+-) 66.Qe2 Kc1 67.Kb3 Ba1 (67...Bd2 68.Qf1 Be1 69.Qe1) 68.Qc2 1-0. Bortnyk,Olexandr (2595) - Yanchenko,R (2465), Titled Tuesday, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.c3 Bc5 7.Ba3 Ba3 8.Na3 Nge7=.

6.c3 Bc5 7.Bb2 Nge7= 8.cd4 Bb6 (8...Nd4 9.Bd4 Bd4 10.Bb5 Nc6 11.Nc3= (worse is 11.Nd4 Qd4 12.Nc3 Qe5 13.Qe2 Qe2 14.Ke2 Bd7-/+)) 9.Nc3 (9.Na3 0-0+=) 9...Nd4 10.Ne4 Nf3 11.Qf3 0-0 12.Bd3 (12.Qg4 Bd7+=) 12...Nf5 (12...Bd4 13.Ng5 g6 14.Bd4 Qd4 15.0-0+=) 13.g4 (13.0-0 Bd4 14.Rab1 Bb2 15.Rb2 Qd4=) 13...Nh4= 14.Qh3 (14.Qg3 Bd4 15.Rb1 Ng6=) 14...Qd5 (better is 14...Ng2! 15.Kd1 f5 16.Qg2 Qd3 17.gf5 Rf5-/+) 15.0-0= Rd8 (15...Ng6 16.Bc2=) 16.Bc2+= (worse is 16.Qh4 Qd3 17.Nd6 Qd2+=) 16...Ng6 17.Ng5?? (better is 17.Rfe1=) 17...h6-/+ 18.Nf7?? (better is 18.Ne4 Ne5 19.g5-/+) 18…Nf4 0–1. Flaata,Alexander – Fant,Goran (2090), Troll Masters, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.c3 Bc5 7.cd4 Nd4 (7...Bd4 8.Nc3=+) 8.Bc4 (better 8.Bb2!? Nf3 9.Qf3=) 8...Nf3-/+ 9.Qf3 Qd4 10.Bb5 Kf8 11.Nc3 Qe5 12.Kd1 (12.Be2 Ne7-/+) 12...Nf6 13.Re1 (13.Bb2 a6 14.Bd3 Bd7-/+) 13...Qc7 (13...Qd4!?-+) 14.Bb2 a6 15.Ba4 Qb6 (15...Qh2 16.Ne4 Ne4 17.Re4-/+) 16.Bb3 (16.Rb1 Qd6 17.Ne4 Ne4 18.Re4 h5= (18...Qh2 19.Rf4 f5 20.Qc3+-)) 16...Bf2 17.Rf1 (17.Ne4!? Bd4 18.Nf6 gf6 19.Bd4 Qd4 20.Rc1-/+) 17...Bd4-+ 18.Na4 Qa7 19.Ba3 Kg8 20.Rc1 Bd7 21.g4 (21.Bc5 Bc5 22.Nc5 Bc6-+) 21...Bc6 22.Qf4 h6 (22...Bg2 23.Re1 Bh3 24.g5 Bg4 25.Kc2-+) 23.h4? (better 23.Bc5 Bc5 24.Nc5-+) 23...Qb8?? (better 23...Bg2 24.Re1 Bh3-+) 24.Qd4+= Qg3 25.Rg1 Qf3 (25...Qh4 26.Be7+=) 26.Kc2 (26.Ke1 Qh3 27.h5 Bf3+/-) 26...Ba4+= 27.Ba4?? (better 27.Qa4 Rd8 28.Bc5=) 27...Kh7?? (27...Qa3 28.Bb3 Qa5 29.Kd1-+) 28.Kb1?? (better 28.Qd3 Qd3 29.Kd3 Rhd8 30.Ke2+/-) 28...Qa3-+ 29.g5 Rhd8 30.Qe5? (30.Qf4 Nd5 31.Qe4 Kh8 32.gh6 gh6-/+) 30...Qb4 (better 30...Qa4 31.gf6 Rd2-+) 31.Bb3-/+ Nd7 (better 31...Ng4 32.Qc7 Qd4 33.Qf7 Ne5-+) 32.Qe4?? (better 32.Qb2 g6 33.h5-/+) 32...Qe4-+ 33.Bc2 Qc2! 34.Rc2 (34.Kc2 Rac8 Combination; 34.Rc2 Ne5 Combination) 34...hg5 35.Rg2 (35.hg5 Ne5-+) 35...Kg6 (better 35...gh4!? 36.Rg4-+) 36.Rg5 Kh6 37.Rg2 (37.d3 Rac8-+) 37...g6 (37...Rac8 38.Rf2 Rc2 39.Kc2-+) 38.Rg1 (38.Rc7 b5-+) 38...Nf6 (38...Ne5 39.Rg2-+) 39.Rf1 Nh5 (39...Kg7 40.Rf3-+) 40.d3 (40.Rf7 Rd4-+) 40...Rac8 (40...f6 41.Rc7-+) 41.Rcf2 (41.Rf7 Rc2 42.Kc2 b5-+) 41...Rc5 (better 41...Ng3 42.Rc1 Rc1 43.Kc1-+) 42.Rf7 Rb5 43.Ka1 (43.Kc2 Rd4-+) 43...Rdd5 (43...Rd3 44.Re1-+) 44.Rf8 (44.Rb1 e5-+) 44...Rf5 (better 44...Rd3!? 45.Rb1 Rb1 46.Kb1-+) 45.Rh8 Kg7 46.Rf5 gf5 47.Rb8 Kf6 (47...Nf4 48.Rd8-+) 48.a3 (48.d4 Nf4-+) 48...Ke5 49.a4 (49.Re8 Rb3 50.d4 Kd4 51.Re6 Ra3 52.Kb2 Rh3-+) 49...Rc5 (better 49...Rb4!? 50.a5-+) 50.Ka2 (50.Rb7 f4 51.Rf7 Kd4-+) 50...Rd5 51.Ka3 (51.Rb7 f4 52.Rb1 f3-+) 51…Rd3 (51...Rd3 52.Kb4 f4 53.Rb7 f3-+) 0-1. zsolti_83 (2440) - mauri990 (2450), Rated Bullet game, lichess.org, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.Bc4 Bc5= 7.0-0 Nge7 8.d3 Ng6 9.Re1 Qc7 10.Qe2 a6 11.a4 b6 (11...0-0 12.Nbd2=) 12.Nbd2 (12.h4 h5=) 12...Bb7 13.Ne4 Nce5 14.Ne5 Qe5 15.Rb1 0-0 16.f4 (16.Bd2 Qc7+=) 16...Qc7 17.Qh5 (17.Nc5 Qc5 18.Qf2 Bc6+=) 17...Rfe8 (17...Be4 18.Re4 Ne7 19.g4-/+) 18.Bd2 (18.a5 Be4 19.ab6 Bf3 20.Qf3 Bb6+=) 18...Rac8 (better is 18...Be4!? 19.Re4 Ne7-/+) 19.Ng5= Nf8 (19...Nf4?? 20.Qh7 Kf8 21.Qh8 Ke7 22.Qg7+-) 20.f5 g6 (20...Bd5 21.Ba6 ef5 22.Bc8 Rc8 23.Qh3+=) 21.fg6 (better is 21.fe6 gh5 22.ef7 Kg7 23.fe8R Re8 24.Re8+-) 21...fg6? (21...hg6 22.Qh4 Rcd8 23.Re2=) 22.Re6 (better is 22.Qh6 Qd7 23.Rf1+-) 22...Ne6= (22...gh5?? 23.Rg6 Kh8 24.Rg8) 23.Ne6 Re6 (better is 23...gh5!? 24.Nc7 Kg7 25.Ne8 Re8=) 24.Be6+/- Kh8 25.Qg4 (25.Qh4!? Rf8 26.Re1+/-) 25...Rf8 26.Rf1 Qe5 27.Rf8 (27.Bf4 Rf4 28.Rf4 Bd6+=) 27...Bf8= 28.Qf4 Bd6 29.Qe5 Be5 30.Bc4 (30.Bg5 Kg7=) 30...Bc6 (30...Kg7 31.Bg5+=) 31.Bb3 Kg7 32.g3 Kf6 33.Kf2 g5 34.Bb4 a5 35.Bd2 Bc7 36.c4 dc3 37.Bc3= Kf5 38.Bg8 Kg6 39.Bb3= b5 40.ab5 Bb5 41.Ke3 Kf5 42.Bg8 h5 43.Bf7 Bb6 44.d4= h4 45.gh4 gh4 46.Kf3 a4+= 47.Ba2 Bd3 48.Ke3+= Bc2 49.Be1 Bb3 50.Bb1+= Kg4 51.h3= Kg5 52.Bb4 Be6 53.Bc2 Bd7 54.Be7 Kh5 55.Bd1 Kg6 56.Ba4 Ba4= 57.Bh4 Bd7 58.Be7 Bh3 59.Bc5 Bd8 60.d5 Kf5 ½–½. Franciskovic,Vinko (2095) – Pandurevic,Miro (2265), Open B, 2008. (=1.e4 e6 2.Nf3+= d5 3.e5 c5= 4.b4 Nc6)

6.Bd3 Bc5 7.Ba3 Qa5 8.Bc5 Qc5 9.Qe2 Nge7 (better 9...Qb4 10.0-0 Qb2-+) 10.0-0= Ng6 Will e5 fall? 11.Re1 b6 12.a4 Bb7 13.Na3 Nf4 14.Qf1 0-0 15.Be4 f5 16.ef6 gf6 17.g3 f5 18.Bd3 (18.gf4 fe4 19.Ng5 Kh8 20.Re4 Rf4-/+) 18...Nb4 (better 18...Qd5 19.gf4 Qf3 20.Qg2 Qg2 21.Kg2 Ne5 22.Kh3 Nd3 23.cd3 Rf6 24.Rg1 Kh8-+) 19.Ne5?? (19.Be2 Ne2 20.Qe2 Qd5-/+) 19...Kh8?? (19...Bg2 20.Qg2 Ng2 21.Kg2 Nd3 22.Nd3 Qc6 23.f3 Qa4 24.f4-+) 20.Bc4?? (better 20.f3 Nfd3 21.cd3=+) 20...Nbd5?? (better 20...Bg2 21.Qg2 Ng2 22.Kg2 f4 23.Be6 Nc2 24.Nc2 Qc2-+) 21.Nd7+/- (21.Nd7 Qa5 22.Nf8 (22.gf4?? Rg8 23.Kh1 Ne3 24.f3 Nf1-+) 22...Rf8 23.Nb5 (23.gf4 Rg8 24.Qg2 Rg2 25.Kg2 Nf4 26.Kf1 Qd2-+) 23...Qd2 24.Rad1+- (24.gf4 Rg8 25.Kh1 Ne3 26.Bd5 Bd5 27.f3 Nf1 28.Re2 Bf3 29.Rg2 Qg2); 21.gf4?? Rg8 22.Kh1 Ne3 23.f3 Nf1 24.Rf1 Bd5-+). Karas,Marek (2240) - Ljukin,S (2365), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

6.g3 Bc5= 7.Bg2 (7.Qe2 f6=+) 7...Qc7 (7...d3 8.0-0=+) 8.Qe2= d3 9.Qd3 (9.cd3?? Nd4 10.Qe4 f5-+) 9...Nb4 (better 9...Ne5!? 10.Qe2 Nf3 11.Bf3 Ne7=) 10.Qc3+- Ne7 11.Na3 Ned5 12.Qc4 b6 (12...Nb6 13.Qb3+-) 13.Qe2 (13.d4!? Bf8 14.Qc7 Nc7 15.Nd2+-) 13...Ba6+= 14.c4 0-0 15.0-0 Rac8 16.d3 Nc3 17.Qe1 (better 17.Qd2!? Nca2 18.Ra2 Na2 19.Qa2+-) 17...Nca2= (17...Nba2? 18.Bd2 Ba3 19.Bc3 Bc4 20.dc4 Qc4 21.Bd4+-) 18.Bg5 (better 18.Qe2!? Nc1 19.Rfc1=) 18...Nd3-/+ 19.Qe4 Nab4 (19...Ba3?! 20.Ra2 Bb4 21.Qd3 (worse 21.Ra6 Nc5 22.Qg4 Na6-/+) 21...Bc4 22.Qb1 Ba2 23.Qb4=) 20.Bf6? (better 20.Nb5!? Bb7 21.Qh4-/+) 20...Nf2 (20...gf6 21.ef6 Nf2 22.Rf2 Bf2 23.Kh1 Qc4 24.Nc4 (24.Qc4?? Bc4 25.Nc4 Rc4-+) 24...Rc4 25.Qe5+=) 21.Rf2 Bf2 (21...gf6 22.ef6 Bf2 23.Kh1 Qc4 24.Nc4 (24.Qc4?? Bc4 25.Nc4 Rc4-+) 24...Rc4 25.Qe5+=) 22.Kh1 (22.Kf2 gf6 23.ef6 Qc5 24.Kf1 Bc4 25.Nc4 Qc4 26.Qc4 Rc4 27.Ra7 Rc1 28.Ke2 Rc2 29.Kf1 Nd5-+) 22...Bc4 (better 22...gf6 23.ef6 Qc4 24.Nc4 Rc4+=) 23.Qg4=+ g6 24.Qg5 Nd5 25.Qh6 (25.Qh6 Nf6 26.ef6 Qg3 27.Qg7) 1–0. Lauche,Christoph (1915) – Schlottmann,Fabian, Sparkassen Open A, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nc6)

4.e5 Qc7

5.a3 Nc6 6.Bb2 cb4 7.d4 a6 8.Bd3 ba3 9.Na3 Rb8 10.0-0 Na5 (10...b5 11.Bc1=+) 11.Qe2 (11.Ng5 Be7 12.Qg4 Nh6=) 11...b5=+ 12.Nb1 Nc4 13.Bc1 Ne7 14.Nh4 (14.Bg5=+) 14...Nf5 (14...Nc6!? 15.Nf3 Nb4-/+) 15.Nf5= ef5 16.Qf3 g6 (16...Qc6 17.Nc3=) 17.Nc3 (17.Qd5? Bb7 18.Bc4 Bd5 (worse 18...Qc4 19.Qc4 bc4 20.c3+=; 18...bc4?! 19.Qa5 Qa5 20.Ra5=) 19.Bd5 Qd7-+ (worse 19...Qc2 20.Ra6 h6 21.e6-/+)) 17...Nb6 (17...Bb7!?=) 18.Nd5+= Nd5 19.Qd5 Bb7 20.Qb3 Rd8 21.Bb2 (21.Rd1 Qc6 22.Bf1 Rc8+=) 21...Qc6 (better 21...Bd5!? 22.Qc3 Qc3 23.Bc3 Bb7=) 22.f3+- Bh6 23.Qb4 (23.c4!? Qe6 24.Rfe1+-) 23...Bf8 (23...Be3 24.Kh1+=) 24.Qd2 Be7 (24...Qe6 25.Rfd1+=) 25.Qh6 (25.c4 bc4 26.Rfc1 h6 27.Rc4 Qb6+-) 25...Bf8+= 26.Qf4 h5 27.Qg3 h4 28.Qf2 (28.Qe1 h3 29.g3 Be7+=) 28...Qe6 29.Rfc1 Rc8 30.Rcb1 h3 31.g3 Bb4 32.Qe2 Qd5 33.Kf2 0-0 34.Rg1 (34.g4 fg4 35.Qe4 gf3 36.Qd5 Bd5 37.Ra6 Bc6=) 34...Rfd8 (34...Bc3 35.Bc3 Rc3 36.Qe3=+) 35.Qe3 (35.g4 fg4 36.Rg4 Bc3 37.Bc3 Rc3=) 35...Bc3 36.Bf5?? (better 36.Bc3 Rc3 37.g4=+) 36...Bb2-+ 37.Rad1 (37.c4 Qc4 38.Bd3 Qd4-+) 37...gf5 38.Qg5 Kf8 39.Qf5 (39.Qh6 Ke8 40.Qh8 Kd7 41.Qh5 Bd4 42.Kf1-+) 39...Rc2! 40.Qc2 Qf3 41.Ke1 Bc3 42.Rd2 Rd4 43.Rf1 (43.g4 Qe3 44.Kd1 Rd2 45.Kc1 Qg1 46.Qd1 Qd1) 43...Qe3 44.Kd1 Rd2 (44...Rd2 45.Kc1 Rd1 46.Kd1 Bf3 47.Rf3 Qe1) 0–1. Pankovsky – Savvopulo,Anatolij, Yalta op, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

5.bc5 d4 6.c3 dc3 (6...Bc5 7.Ba3+- (worse 7.Nd4 Qe5 8.Ne2 Qc7=)) 7.Nc3 (7.d4 b6+-) 7...Bc5 8.a3 (8.Ne4 Bd7+-) 8...Bd7 9.d4 Bb6 (9...Be7 10.Nb5 Qd8 11.Bg5 Bb5 12.Bb5 Nd7 13.Bd2+-) 10.Nb5 (10.Ne4 Nc6 11.Nd6 Kf8+-) 10...Bb5+= 11.Bb5 Nd7 (11...Nc6 12.0-0+=) 12.0-0+- Ne7 13.Bb2 0-0 14.Rc1 Qd8 15.Qa4 Nb8 16.Rfd1 Nbc6 17.Ng5 Nf5 18.Nf3 (18.Bc6 bc6 19.Nf3 Ne7+=) 18...Nce7 (18...Nfe7!?=) 19.Bd3+= Qd5 20.Bc4 Qe4 21.Bd3 (21.Qc2 Qf4+=) 21...Qg4 (better 21...Qd5!?=) 22.h3+- Qh5 23.Be4 (23.Qd7 Nd5+-) 23...Nh4 (23...Rab8 24.Kh2 Rfd8 25.Qb4+-) 24.Bb7 Rad8 25.Nh4 Qh4 26.Rc4 Ng6 27.Qc2 (better 27.Re1!?+-) 27...Ne5= 28.g3 (better 28.Rb4 Rd7 29.d5=) 28...Qh3-/+ 29.de5? (better 29.Rb4 Rd7 30.Bg2-/+) 29...Rd1?? (better 29...Qg3! 30.Kh1 Qf2-+ (30...Bf2?! 31.Bg2=+)) 30.Qd1= Qg3 ½–½. Colesanti,U – Bernardi,G, Academia Cup op, 1997. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

5.bc5 Bc5

6.c3 Nc6 7.d4 Be7 8.Bd3 f5 9.h4 (9.0-0 Na5+=) 9...Nd8 10.g4 (10.Rg1 Nf7+=) 10...Bd7 (10...fg4!? 11.Ng5 h6 12.Bg6 Kd7=) 11.gf5+= ef5 12.Qb3 Be6 13.Na3 (13.Ng5 Bg5 14.hg5 Ne7+=) 13...a6 14.Nc2 Rc8 15.Bd2 Nf7 16.Ne3 Attacking the isolated pawn on d5 (16.Rb1 Nd8 17.a3+-) 16...Rd8? (better 16...Qd7+=) 17.Bf5 Bf5 18.Nf5 Qd7?? (better 18...Bf8+-) 19.Ng7 Kf8 20.e6 Qc8 21.ef7 Kf7 (21...Kg7 22.Ne5 b5 23.Rg1 Kf6 24.c4+-) 22.Nh5 (22.Rg1 Kf8+-) 22...Kf8 23.Nf4 (23.Ne5 Bd6+-) 23...Qf5 (23...Nf6 24.0-0-0+-) 24.Qb1 Qg4 (24...Qc8+-) 25.Ne5 Qg7 26.Ne6 (26.Ne6 Ke8 27.Ng7 Kf8 28.Ne6 Ke8 29.Nc7 Kf8 30.Qf5 Bf6 31.Bh6 Nh6 32.Qf6 Kg8 33.Qd8 Kg7 34.Ne6) 1–0. Capron,Daniel – Savalle,A, Thonon Les Bain op, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.c3 d4 7.Bd3 (7.Ba3!?+-) 7...Nc6= 8.Qe2 Nge7 9.0-0 Ng6 e5 becomes the focus of attention 10.Re1 (10.Bg6 hg6 11.Ba3 d3=) 10...Nf4= 11.Qe4 Nd3 12.Qd3 0-0 (12...dc3 13.Nc3 0-0 14.Ng5=) 13.cd4 Rd8? (better 13...Nd4!? 14.Nd4 Qb6=) 14.Ng5+- Bd4?? (14...f5 15.Qh3 h6 16.dc5 hg5+=) 15.Qh7+- Kf8 16.Qh8 (better 16.Ba3 Nb4 17.Bb4 Bc5 18.Qh8 Ke7 19.Qg7+-) 16...Ke7 17.Qg7 Ne5 18.Ba3 Bc5?? (better 18...Kd7 19.Kh1 Qc4 20.Nf7 Nf7 21.Qf7 Kc6+-) 19.Re5 (19.Qe5?! Qe5 20.Re5 Ba3 21.Na3 f6 22.Ne6 Be6+-) 19...Ba3 20.Qf7 Kd6 21.Qc7 (21.Qc7 Kc7 22.Na3 Rd2 23.Nb5 Kd8 24.Ne4+-) 1–0. Simon,Laurent (2085) – Parisse,D, Cappelle op Cappelle la Grande, 1995. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.c3 d4 7.cd4 Bd4+= 8.Nc3 Be5?? (better 8...Bc3 9.dc3 Ne7+=) 9.Nb5+- Qc5 (9...Qd8 10.Ne5 Ne7 11.Ba3+-) 10.d4 (10.d4 Bd4 11.Nfd4+-) 1–0. Westphal,Wolfgang (2250) – Kornblum,Dittmar (1730), Rostock Germany, U8, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.c3 Nd7 7.d4 Be7 8.Bd3 f6 (8...Nb6 9.Qc2+=) 9.0-0 (9.Bf4 Bf8+=) 9...Nb6 (9...fe5 10.Ne5 Ngf6 11.Bf4+=) 10.Qe2 (10.Qc2 f5+=) 10...Bd7+= 11.Bf4 f5 12.g3 (12.Nfd2 0-0-0 13.Be3 g5+=) 12...Nh6 (12...Rc8 13.Nfd2=) 13.h4 (13.Bh6 gh6 14.Rc1 Rc8+=) 13...0-0 14.Ng5 (14.Bh6!? gh6 15.Nbd2=) 14...Rac8=+ 15.Rc1 Nf7 16.Nd2 (16.Nf7 Rf7 17.a3 h6=+) 16...Ng5-/+ 17.hg5 Ba3 18.Rc2 Ba4 19.Nb3 Nc4 20.Bc1 (20.Kg2 Bb5=+) 20...Qe7 21.f4 b6 22.Qe1 (22.Qh5 Bc1 23.Rac1 Be8=+) 22...Bc1-/+ 23.Rcc1 h6 (23...Bb5 24.Qe2-/+) 24.gh6=+ gh6 25.Qe2 Rf7 (25...Qg7 26.Kh2=) 26.Kf2 Rg7 27.Rh1 Rg6 28.Rh3 ½–½. Therkildsen,Thomas (2195) – Boillon,Vincent (2095), FRA–ChT3 North, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.d4 Bb4 7.c3 Bc3 8.Nc3 Qc3 9.Bd2 Qc7 10.Bd3 Nc6 11.0-0 Nge7 12.Qc2 Bd7 13.Bb4 (13.Rab1 Rc8 14.Rfc1 Qd8=) 13...Rc8 14.Bd6 Qb6 15.Qd2 Ng6 (15...Qa5!? 16.Qg5 Ng6+=) 16.Rab1 Qa5 17.Qg5 Qd8 (17...b5 18.Rfc1 Nce7 19.Be7 Rc1 20.Rc1 Ne7 21.Qg7+-) 18.Qg3 (18.Rb7 Qg5 19.Ng5 Nf4+-) 18...Nce7 (18...Na5 19.Ng5+-) 19.Rb7 Nf5 20.Bf5 ef5 21.Qg5 f6? (better 21...a6!?+-) 22.ef6 (22.Qh5 a6 23.Re1+-) 22...gf6?? (22...Qf6 23.Qf6 gf6 24.Ra7 f4+-) 23.Re1 Kf7 24.Qf5 Rc7 25.Qd5 (25.Qd5 Kg7 26.Bc7+-) 1–0. Schiappoli,Dario (1955) – Guerrini,Donato (2030), 7th Isola d'Elba op, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.d4 Bb4 7.c3 Bf8 8.Bd3 Nc6 9.0-0 g6 (9...Bd7 10.Ng5+=) 10.Ba3+/- Nh6 11.Qd2 Nf5 12.Bf8 Kf8 13.g4 Ng7 14.Na3 a6 15.Qh6 Ne7 16.Ng5 (better 16.c4!?+/-) 16...Ng8 (16...Qc3 17.Rfd1=+) 17.Nh7 (17.Qh3!?=) 17...Rh7=+ 18.Qh7 Qc3 19.Bg6 (19.Qh3 Qa3 20.Rfc1 Qb2=+) 19...fg6-/+ 20.Rac1 Qd4 21.Qg6 Qe5 22.Nc2 (22.f4 Qe3 23.Kh1 Qa3-/+) 22...Bd7 (22...Qf4 23.h3-/+) 23.f4 Qc7 (23...Qf6 24.Qf6 Nf6 25.g5-/+) 24.f5 (24.Nd4 Qb6 25.Rfd1 Qd6=+) 24...ef5 25.Rce1? (25.gf5 Qc5 26.Kg2-/+) 25...Qc2?? (better 25...Be8 26.Rf5 Nf5 27.Qf5 Bf7-+) 26.Qd6= Kf7 27.Qd7 Kf8 (better 27...Kg6!? 28.gf5 Kh7 (28...Nf5? 29.Qe6 Nf6 30.Rf2+-) 29.Qd5 Rf8=) 28.Qd6+/- Kf7 29.Qd5 Kf6 30.Qd6 Kg5 (30...Kf7 31.g5 Nh5 32.Qd5 Kg6+-) 31.gf5 Nf6?? (31...Nf5 32.Qf4 Kg6+-) 32.h4 Kg4 (32...Kh6 33.Qf6 Kh7+-) 33.Qf4 (33.Qf4 Kh5 34.Qg5) 1-0. Baeta,M (1950) - Goetten Wagner,Julia (1635), 6th Floripa Open, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.d4 Bb4 7.Bd2 Bd2 8.Qd2 Nh6 9.Bd3 Nf5 10.Na3 a6 11.c4 dc4 12.Nc4 0-0 (12...b5 13.Na5+-) 13.Rc1 b5 (13...Qd8 14.0-0+-) 14.Be4 Ra7 15.Ne3 (15.Nd6 Qd7 16.Bf5 (worse 16.Nc8 Rc8 17.Rc8 Qc8+-; worse 16.Rc8 Rc8 17.Nc8 Qc8+-) 16...ef5 17.d5+-) 15...Qe7 16.0-0 Ne3 17.Qe3 Bb7 18.Bb1 Bd5 19.Ng5 g6 20.Ne4 Be4 21.Be4 Rd8 22.Rfd1 Nd7 23.f4 Nb6 24.a4 (24.Rc6 Nc4 25.Qc3 Qh4+=) 24...Nc4 (better 24...Na4!? 25.d5 ed5 26.Rd5 Rd5 27.Bd5 Rc7-/+) 25.Qf2 Rad7? (25...Rc7 26.ab5 ab5 27.Rb1+=) 26.Rd3 (26.ab5!? ab5 27.Bc6+-) 26...Na5 (better 26...Qb4 27.ab5 Nb2=+) 27.Rh3?? (better 27.ab5 ab5 28.Rb1+=) 27...Rd4-+ 28.Bc2 (28.Re1 Ra4 29.Rc3 Nc4-+) 28...Rd2 29.Qd2?? (29.Qe3 Qc7 30.Qc3 Qb6 31.Qe3-+) 29...Rd2 (29...Rd2 30.Bd3 Qd8-+) 0–1. Gorbunova,Anna – Demerzhan,Lyudmila (1995), RUS–ch G16, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.d4 Bb6 7.Bd3 Nc6 8.c3 f6 9.Bf4 Qf7 (9...Qd7+=) 10.Nbd2 (10.Na3 a6+=) 10...h6 (10...g5!? 11.Be3 g4=+) 11.Qc2 f5 12.h4 (12.Rb1 g5 13.Bg3 Qc7+=) 12...Nge7 13.Nb3 (13.h5 0-0+=) 13...Bd7= 14.a4 Ng6 15.Bg3 Na5 16.Nfd2 (16.0-0 0-0=) 16...Rc8= 17.h5 Ne7 18.Qb2 (18.Bf4 0-0=) 18...0-0 (18...f4 19.Bh4=+) 19.Bb5 (19.Bf4!?=) 19...Bb5-/+ 20.ab5 Nb3 21.Nb3 f4 22.Bh2 (22.Bh4 Qh5 23.Qe2 f3-+) 22...Qh5 23.Nd2 Rc7 24.Nf3 g5 (24...Rfc8 25.0-0 g5-+) 25.0-0-0? (better 25.Kd2!? Qg4 26.Ne1-/+) 25...Qg6 (25...Rfc8 26.Qb4 g4 27.Nd2 Rc3 28.Kb2-+) 26.Rd2? (better 26.Ng1-+) 26...Rfc8 27.Rc2 (27.Kd1 Rc3 28.Bg1 Ba5-+) 27...Nf5 28.Nd2 (28.Kd1-+) 28...Nd4! (28...Nd4 29.Nb1 Qc2 30.Qc2 Nc2 31.Kc2 Bd4-+) 0–1. Mayorquin Polanco,Nicolas – Cardozo,C E, ch–Panamerican U20, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

6.d4 Bb6 7.Bd3 Nc6 8.c3 f6 9.ef6 Nf6 10.Ba3 Bd7 11.0-0 Qf4 12.Nbd2 Bc7 13.Rb1 b6 14.Ba6 (14.Re1 Rc8+=) 14...Ne4 15.g3 Qh6 (15...Qf5 16.Nh4 Nc3+/-) 16.c4?? (better 16.Ne4!? de4 17.Nd2+/-) 16...Nd2 (better 16...Nc3!? 17.Qc2 Nb1 18.Rb1 Qf6-/+) 17.Nd2 Nd4 18.Nf3 Nf3 19.Qf3 Qf6 20.Qb3 (20.Qf6 gf6 21.cd5 Rd8+=) 20...dc4 (better 20...d4-/+) 21.Qc4+- Be5 22.Rbd1 Bb2 23.Bb4 Ba4 (23...Rd8 24.Rd7! Rd7+-) 24.Bc3?? (better 24.Rd3 Kf7 25.Qe4+-) 24...Bc3+/- 25.Qa4 Kf7 26.Rd7 Kg6?? (better 26...Kg8+/-) 27.Qg4+- Qg5 28.Qe6 Bf6 29.Rd5 (29.Rd5 Qd5 30.Qd5+-) 1-0. Geisshirt,M (2025) - Fratini,M (1835), Arco ITA, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Qc7)

4.e5 d4

5.Bb2 cb4 6.Nd4 Bd7 7.a3 Nc6 8.ab4 Bb4 9.Qg4 Bf8 10.Nb5 Nh6 (10...Nb4 11.N1a3 Bb5 12.Bb5 Nc6 13.Nc4+-) 11.Qe4 (11.Nd6 Bd6 12.Qg7 Rg8 13.Qh6 Ne5 14.Qh7 Rg4+-) 11...Be7 (11...a6 12.Nd6 Bd6 13.ed6=) 12.Nd6 (12.Ba3 Qa5+=) 12...Bd6= 13.ed6 0-0 14.Nc3 Nf5 15.Bd3 g6 (15...Ncd4 A) 16.Qb7? Rb8 (16...Nd6?! 17.Qb4 N6f5 18.Bf5 Nf5 19.Qe4=) 17.Qc7 Rb2-+; B) 16.0-0=) 16.0-0 (16.Ba3 a6+=) 16...Nd6 17.Qe3 e5 18.Ba3 Bf5 19.Qc5 (19.Rfb1!?=) 19...Bd3=+ 20.cd3 Nf5 21.Qf8 Qf8 22.Bf8 Kf8 23.Rfb1 (23.f4 ef4 24.Rf4=+) 23...b6 (better 23...Rb8!?=+) 24.Rb6+= Ncd4 (24...ab6 25.Ra8 Pinning (25.Ra8 Deflection; 25.Ra8 Decoy)) 25.Rba6+- 1–0. Prakash,Om (2045) – Wilson,Jaimie (1650), FICGS, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb2 b6 6.b5 (6.Bc4 Bb7=) 6...Bb7= 7.Bc4 (7.Be2!?=) 7...Nd7-/+ 8.Qe2 (8.Bb3 Qc7 9.Qe2 Bf3 10.Qf3 Qe5 11.Kf1 Qb8-/+) 8...Qb8 (8...Bf3 9.Qf3 Ne5 10.Qe2 Nc4 11.Qc4-/+) 9.c3 (9.Na3 Bf3 10.Qf3 Ne5-/+) 9...Bf3 10.gf3 (10.Qf3 Ne5 11.Qe2 Nc4 12.Qc4 Qe5 13.Kf1 Rd8 14.cd4 Qf4-/+) 10...Qe5 11.cd4 cd4 12.Na3 (12.Qe5 Ne5 13.Be2 Bc5-+) 12...Bc5 13.Rg1? (13.Rc1 Ngf6-+) 13...Nh6 (better 13...Ba3!? 14.Ba3 d3 15.Qe5 Ne5-/+) 14.Qe5 Ne5 15.Rg7?? (better 15.Be2-+) 15...Ba3 (15...Ba3 16.Ba3 Nc4-+) 0–1. Asadpour,Mehdi – Berg,Michael2 (2235), Stockholm op, 1994. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb2 Qb6 6.a3 Bd7 7.Be2 a5 8.d3 (8.c3!?=) 8...ab4=+ 9.Nbd2 Nc6 10.0-0 Nh6 (10...ba3!? 11.Ba3 Qc7-/+) 11.ab4=+ Ra1 12.Qa1 Nb4 13.Qa8 Qd8 14.Qb7 Bc6 15.Qa7 Bd5 16.Ba3 Nc6 17.Qa6 Qa5 18.Qa5 Na5 19.Rb1 Nb7 20.Nc4 Kd8 (20...Nf5 21.Nfd2=) 21.Nfd2 (21.Bc1 Ng8+=) 21...Kc7= 22.Nb3 f6 23.f4 Nf7 24.Bf3 fe5 25.fe5 Bc4 (25...Bf3 26.gf3 g5 27.Rf1=) 26.dc4+= Ne5 (26...Nbd8 27.Re1+=) 27.Bb7+- Kb7 28.Nd4 Kc8 29.Ne6 Nc4 30.Bc5 Bc5 31.Nc5 Kc7 (31...Re8!?+-) 32.Ne6 Kd6 33.Ng7 Ne3 34.Rb6 (34.c3 Kc5+-) 34...Kc5 (34...Kd5 35.Nh5+-) 35.Rh6 Rf8?? (better 35...Kd5+-) 36.Ne6 (36.Ne6 Kd5 37.Nf8 Nc2 38.Kf2+-) 1–0. Husarik,Branko (2175) – Novak,Jan (1935), CZE–ChT2C, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb2 Ne7 6.bc5 Nec6 7.Bd3 (7.Ba3 Qa5 8.Qe2 a6=) 7...Bc5 8.0-0 Nb4 (8...Nd7 9.Qe2=) 9.Be4+= N8c6 10.c3 dc3 11.dc3 Qd1 (11...Na6 12.Qd8 Nd8 13.Rd1+=) 12.Rd1 Nd5 (12...Na6 13.Nbd2+=) 13.c4 (13.Nbd2 f5 14.ef6 Nf6 15.Bc6 bc6+=) 13...Nb6 14.Ba3 Be7 15.Be7 Ke7 16.Nbd2 Nd7 17.Bc6 bc6 18.Nb3 a5 19.c5 (19.Rd3 Bb7+=) 19...a4= 20.Nbd4 Bb7 21.Rab1 Rhb8 (worse 21...Nc5 22.Rdc1 Ra5 23.Rc5 Rc5 24.Rb7 Kd8 25.Kf1+-) 22.Rdc1 f6 23.ef6 gf6 (23...Nf6? 24.Ne5 Ke8 25.Ne6+- (25.Nec6?! Bc6 26.Rb8 Rb8 27.Nc6 Rb2+-; 25.Ndc6?! Bc6 26.Rb8 Rb8 27.Nc6 Rb2+-)) 24.Rb4 (24.Rb2 e5 25.Nf5 Ke6=) 24...e5 25.Nf5 Ke6 26.Ng7 Kf7 27.Nf5 Ke6 (27...Bc8 28.Rh4=) 28.Ng7 Kf7 29.Nf5 Ke6 ½–½. Schwenk,Heinrich (2165) – Velker,Wim (2235), Rochade–20/TT, 2009. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 d4)

5.Bb2 Nh6 6.a3 Nc6 7.b5 Ne7 8.Bd3 Ng6 9.0-0 Qc7 10.Re1 Ng4 Pawn e5, live or die! 11.Qe2 Nf4 12.Qe4 Nd3 13.Qd3 (worse 13.cd3 f5 14.Qe2 Qa5=+) 13...h5 (13...a6 14.Qe2=) 14.h3 Nh6 15.c3 dc3 (15...c4 16.Qd4 Bc5 17.Qf4=) 16.Nc3+= Be7 17.Ne4 0-0 18.Qc2 (18.Nfg5 Nf5 19.Qe2 g6+-) 18...Bd7 19.Qc4 (19.Nfg5 Nf5 20.g4 hg4 21.hg4 c4+=) 19...a6 20.a4 ab5 21.ab5 Qb6 22.Nc3 (22.d4 cd4 23.Nd4 Nf5 24.Nf5 ef5=) 22...Nf5 23.Kh2 (23.Reb1 Nd4=) 23...Rfd8 24.Ba3 Be8 (better 24...Ra5 25.Reb1 Rda8=+) 25.Na4?? Can c5 get defended? (better 25.Reb1=) 25...Qb5-+ 26.Qb5 Bb5 27.Nc5 Ra3! 28.Ra3 Bc5 29.Rb3? (better 29.Ra5 Bf2 30.Rb5 Bg3 31.Kg1 Be1 32.Ne1 Rd2 33.Rb7-+) 29...Bc6-+ 30.g4 (30.Re2 b5-+) 30...Bf2 31.gf5 Be1 32.Ne1 Rd2 33.Kg3 ef5 34.Nd3 (34.Kh4-+) 34...g5 35.Ne1 (35.Nf2-+) 35...h4 (35...f4) 0–1. Zahorbensky,Jaroslav (2130) – Balacek,Tadeas (2110), CZE–ChT2C, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb2 Nh6 6.Na3+=.

5.Bb2 Nh6 6.bc5 Bc5 7.c3 dc3 8.Nc3 0-0 9.d4 Bb4 10.Bd3 Nf5 11.0-0 b6? (11...Nc6 12.Bf5 ef5 13.d5+=) 12.a3?? (better 12.Be4 Bc3 13.Bc3+-) 12...Bc3+= 13.Bc3 Ba6 14.Be4 Nc6 Increases the pressure on the backward pawn (14...Bf1 15.Ba8 Bc4+=) 15.Qa4 (better 15.Re1 Qd7 16.Bf5 ef5 17.d5+-) 15...Bf1= 16.Rf1 Rc8 17.Bc6 Qc7 (better 17...Ne7!? 18.Bb4 Nc6 19.Bf8 Kf8=) 18.d5+- ed5 19.Bd7 Qc3 20.Bf5 Rc7 21.e6 Qf6 22.ef7 Rcf7 23.Nd4 Kh8 24.Bh3 Qh4 25.Qb4 a5 26.Qd2 (worse 26.Qb6 Rf2 27.g3 Rf1 28.Bf1 Qg5=) 26...Qe4 27.Ne6 (better 27.Nf3+-) 27...Re8?? (better 27...Rf2! 28.Qf2 Rf2 29.Kf2 Qd3=) 28.Ng5+- Qf4 29.Nf7 Qf7 30.Re1 (30.Qd4 Rb8+-) 30...h6 31.g3 Rd8 32.Qe3 (32.Re6!? Qh5 33.Bg2 d4+-) 32...d4 33.Qe7 (better 33.Qd3!?+-) 33...Qe7 34.Re7 d3 35.Rd7 Rb8 (35...Rd7 36.Bd7 d2 37.Bg4+-) 36.Rd3 1–0. Vokoun,Tomas – Grunert,Friedrich (1910), European Union Youth Championship U14, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 a6 6.Na3 Ne7 (6...Nh6+=) 7.h4 (7.c3 dc3 8.dc3 Qd1 9.Kd1 Nd5+=) 7...Nd7 (7...Nd5 8.Bc4=) 8.Nc4 (8.ba6!? Ng6 9.Qe2 Ra6 10.h5+=) 8...Nd5=+ 9.Ng5 (better 9.ba6 b5 10.Na3=+) 9...N7b6?? (better 9...Qc7 10.ba6 Ne5 11.Ne5 Qe5 12.Qe2 Qe2 13.Ke2 h6-+) 10.Qh5+= g6 (10...Qd7!? 11.Rb1 a5+-) 11.Qf3+- Qc7 12.Nd6 Bd6 13.ed6 Qd7 14.Ba3 c4 (14...h6 15.Ne4 f5 16.Nc5 Qd6 17.ba6+-) 15.Bc5+- f6 (15...0-0 16.h5 h6 17.ba6 Ra6 18.Bd4 e5 (18...hg5?? 19.hg6 f6 20.Rh7 Qh7 21.gh7 Kg7 22.a4+-) 19.Bb6 Nb6+-) 16.Ne4?? (better 16.Bb6 0-0 17.Nh7 Kh7 18.h5+-) 16...f5= 17.Ng5 (better 17.Bb6 fe4 18.Qe4 Nb6 19.Qd4=) 17...e5?? (better 17...h6 18.Nh3 Qg7=+) 18.Bc4! Nc4? (18...h6 19.Bd5 Nd5 20.Qd5 hg5 21.ba6 Ra6 22.Qe5 Qe6 23.Bd4 Rh4+-) 19.Qd5 h6 20.Nf3 (20.0-0-0 Kf8 21.Qc4 hg5+-) 20...Qe6 (20...Qf7 21.Qf7 Kf7 22.d3+-) 21.Qe6 Be6 22.d3 Rc8 (22...b6 23.Bb4 a5 24.dc4 ab4 25.Ne5+-) 23.Bb4 (23.dc4?! Rc5 24.ba6 ba6=+) 23...Nb6 (23...Bd5 24.dc4 Bf3 25.gf3 Rc4 26.Bd2+-) 24.Ne5 (24.ba6 Nd7 25.ab7 Rb8+-) 24...Rc2 (24...Nd5 25.Bd2 ab5 26.Kd1+-) 25.ba6 ba6 26.0-0 0-0 (26...Nd5 27.Rfb1 Rh7+-) 27.d7 (better 27.Ng6 Rb8 28.Rfc1 Rc1 29.Rc1+-) 27...Ra8 (27...Rb8 28.Bd6 Ra8 29.Rfc1+-) 28.Ng6 (28.Rfe1 Nd7 29.Ng6 a5+-) 28...Nd7 (28...Nd5 29.Ba5 Bd7+-) 29.a3 (29.Rfe1 Re8+-) 29...Kf7 (29...a5 30.Bd6 Ra6 31.Bf4+-) 30.Nf4 (30.h5 a5 31.Bd6 Rc3+-) 30...a5 31.Bd6 (31.Be1 Ne5+-) 31...Ra6+= 32.Ne6 Ke6 33.Bf4 Kd5 (33...Nc5!? 34.Bh6 Nd3+=) 34.Rfe1+- h5 (34...Rf6 35.Rab1 Re6 36.Rb5 Nc5 37.Re6 Ke6 38.Rb6 Ke7 39.Rc6+-) 35.Re7 Nc5 36.Re5 Kc6 37.Rf5 Nd3? (better 37...Rb6 38.Be5 Rb5+-) 38.Rf6 Kb7 (38...Kb5 39.Rb1 Ka4 40.Ra6 Nf4+-) 39.Rb1 Rb2 (39...Nb2 40.Rf7 Kb6 41.Bc1+-) 40.Rb2 Nb2 41.Ra6 Ka6 42.f3 (42.g4 hg4 43.Kf1 Nd3+-) 42...Nd3 43.Bc7 Kb5 (43...Kb7 44.Ba5 Kc6 45.Bd2+-) 44.g4 Nc5? (44...Kc6 45.Bg3 Kd5 46.gh5 Ke6+-) 45.gh5 Nd7 (45...Ne6 46.h6 Nf8 47.Kf2+-) 46.h6 Nf8 (46...Nf6 47.Be5 Nh7 48.Bd4+-) 47.Kf2 a4 48.Be5 Kc4 (48...Kc5 49.f4+-) 49.Ke2 Nh7 (49...Kd5 50.Bg7 Nh7 51.Kd3+-) 50.Bg7 (better 50.f4+-) 50...Kb3 (50...Kc3+-) 51.Kd3 Ka3 52.Kd4 Kb3 53.Kd5 a3 54.Ke6 1–0. Mrva,Martin – Sikorova,Olga (2230), Tatry Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 b6 6.Bd3 Bb7 7.Qe2 (7.0-0 Be7+=) 7...Ne7 (7...Nd7 8.Be4 Be4 9.Qe4=) 8.0-0 Nd7 9.Be4 Nd5 (9...Be4 10.Qe4 a6 11.ba6 Ra6 12.c4=) 10.c4+= Nf4 11.Qe1 Qc7 (11...Be4 12.Qe4 Ng6 13.d3=) 12.d3 Ng6 The pressure on e5 grows 13.Qe2 (13.Bb7 Qb7 14.Qe2 Be7=) 13...Be7 14.Re1 a6 (14...0-0 15.Na3=) 15.ba6 Ra6 16.Na3 Bc6 17.Nb5 Qb7 (17...Bb5 18.cb5 Ra5 19.Bg6 hg6 20.a4=) 18.Bc6 (18.h4 A) 18...Nh4? 19.Nh4 Be4 20.Qe4 Qe4 21.Re4+- (21.de4?! Ra4 22.Nf3 Rc4+=); B) 18...0-0 19.Bc6 Qc6=) 18...Qc6 19.a3 0-0 20.Ra2 (20.Qe4 Qe4 21.Re4 Ra4=) 20...Bd8 (20...Rfa8 21.Qe4 Qe4 22.Re4=) 21.Qd1 (21.Qe4 Qe4 22.Re4 Be7=) 21...Bc7 22.Rae2 Raa8 (22...Rfa8 23.Qc2=) 23.h4 Rae8 (23...Ne7 24.h5=) 24.Nc7 (24.h5 Ne7+=) 24...Qc7= 25.h5 Ne7 26.h6 g6 27.Nh2 b5 (27...Nc6!? 28.Ng4 Ra8=) 28.cb5+- Nd5 (28...Ra8 29.Qb3+=) 29.Bd2 c4 (29...Ra8 30.a4 c4 31.Nf3+=) 30.dc4 Qc4 31.Bb4 (31.Re4!?+-) 31...Nb4+= 32.ab4 f6 (32...Qb4 33.Nf3 Qb5 34.Nd4+=) 33.Nf3 (33.ef6 Nf6 34.Nf3 d3+-) 33...fe5+= 34.Ne5 Ne5 35.Re5 d3 36.R1e4 (36.Qd2 Ra8 37.Rd1 Ra2 38.Qd3 Qd3 39.Rd3 Rff2+-) 36...Qa2 37.Qd3 (37.f3 Rf5 38.Rc5 Rd8=) 37...Rf2 (37...Qf2 38.Kh2 Rf4 39.Qg3 Re4 40.Qf2 Re5 41.Qa7 Rh5 42.Kg3 Rg5 43.Kh4 Rh5 44.Kg4 Rh6 45.Qd7+-) 38.Qg3+- Rd2 (38...Rc2 39.Kh2 Rc4 40.Re2+-) 39.Rg5 (39.Re6! Re6 40.Re6 Qe6 41.Qb8 Kf7 42.Qf4 Qf5 43.Qd2 Qb5 44.Kf2+-) 39...Qb1 (39...Qa1 40.Kh2 Rd1 41.Qe5 Rh1 42.Kg3+=) 40.Re1+- Qc2 41.b6 Rd1 42.Rd1 Qd1 43.Kh2 Qd7 44.Rc5 (better 44.Qc7 Qf7 45.Qf7 Kf7 46.Rc5+-) 44...Qd2 45.Rg5 (45.b7 Qh6 46.Kg1 Qd2+-) 45...Re7?? (better 45...Qd7=) 46.Qb8+- Kf7 47.Rg3 g5 (47...Qh6 48.Rh3 Qg5 49.Rf3 Qf5+-) 48.Rf3 Kg6 49.Qe5 (49.Qe5 Qf4 50.Rf4 gf4 51.b5+-) 1–0. Ennsberger,Ulrich (2365) – Sebenik,Matej (2515), 2. Bundesliga Mitte, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Nd7 6.Na3 Nb6 (6...Qc7 7.Nc4=) 7.Nc4 Nc4 8.Bc4 b6 9.0-0 f6 (9...Bb7!?+=) 10.Qe2+/- g5 (10...f5!?+/-) 11.ef6+- Qf6 12.d3 h6 13.Ne5 Bd6 (13...Rh7 14.f4 Bd6 15.Qh5 Kd8 16.Nc6 Kc7 17.fg5+-) 14.Qh5 (14.Qh5 Ke7 15.Ng6 Kf7 16.Nh8 Kg7 17.f4 gf4 18.Qf3+-) 1-0. marekt (2430) - Haroldlee123 (1825), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Nd7 6.Bd3 Qc7 7.Qe2 Ne7 8.c4 g5 9.Ng5 Qe5 10.Nf3 (10.Nh7? Bg7-+) 10...Qe2 11.Be2 Bg7 12.d3 b6 13.Nbd2 Bb7 14.Rg1 Ng6 15.Ng5 Nf6 16.Bf3 Bf3 17.Ndf3 (worse 17.gf3 Nf4 18.Kd1 Nd3 19.Ne6 fe6 20.Rg7 Kf8-/+) 17...Ke7 (17...a6 18.ba6 Ra6 19.a3=+) 18.h4 (18.a3 a6 19.Rb1 h6=) 18...h6 19.Ne4 Ng4 (19...Ne4 20.de4 a6 21.ba6 Ra6 22.h5=+) 20.Ke2= f5 21.Ng3 h5 22.Ng5 (better 22.Rb1!?=) 22...Nh4-/+ 23.Rh1 Ng6 (23...Ng2 24.Kf1 N2e3 25.fe3 de3 26.Rb1-/+) 24.Rh5 Be5 25.Rh8 Rh8 26.Nf1 Nf4 (26...Bf4 27.g3 Bc1 28.Rc1-/+) 27.Bf4=+ Bf4 28.Nh3 Bc7 29.f3 (29.a3 Ra8=+) 29...Nf6 (29...Ne5 30.Re1=+) 30.Nd2 (30.f4 Rh4 31.Nf2 Rf4=+ (worse 31...Bf4 32.g3 Bg3 33.Ng3+=)) 30...Nh5 31.a4 Nf4 (31...Rg8 32.Kf1=+) 32.Nf4=+ Bf4 33.Nf1 a5 34.ba6 Ra8 35.a7 Bc7 36.g3 Ra7 37.f4 e5 38.fe5 Be5 39.Kf3 Kf6 40.Ra2 Ra8 41.Ra3 Kg5 42.Ra2 Bc7 43.Nh2 Re8 44.Nf1 Re1 45.Kf2 Rd1 46.Ke2 Rb1 47.Nd2 (47.Kf2 Rb3 48.Rd2 Ra3-/+) 47...Rh1-+ 48.Kf3 (48.Rb2 Kg4-+ (worse 48...Bg3 49.Nf3 Kh5 50.Rb6-/+)) 48...Re1 49.Kf2 Re3 50.Nf3 (50.Nf1 Rd3 51.Re2 Kg4-+) 50...Kg4 51.Nh2 Kh3 52.Nf1 Bg3 (better 52...Rd3 53.Re2 Bg3 54.Ng3 Rg3-+) 53.Ng3 Rg3 54.Ra3 Re3 (54...Kg4 55.Rb3-+) 55.a5 (55.Rb3 Kg4-/+) 55...ba5-+ 56.Ra5 Rd3 57.Rc5 Kg4 58.Re5 (58.Rc8 Rd2 59.Ke1 Rc2-+) 58...Kf4 (58...Rc3 59.Rc5-+) 59.Rd5 Ke4 60.Rd7 Rc3 61.Rc7 Rc2 (61...f4 62.c5-+) 62.Ke1 f4 (62...Ke3 63.Re7 Kd3 64.Ra7-+) 63.c5 f3 64.c6 f2 65.Kf1 Ke3?? (better 65...d3 66.Re7 Kf3 67.Rf7 Ke3 68.Re7 Kd2 69.Kf2 Rc6-+) 66.Re7=+ Kd3 (66...Kf4 67.Rf7 Ke5 68.Re7 Kd6 69.Rd7 Kc6 70.Rd4=) 67.c7= Rc4 68.Kf2 Kc2 69.Rd7 d3 70.Ke3 Rc3 71.c8Q?? (better 71.Kf3=) 71...Rc8-+ 72.Kf2 (72.Rd5-+) 72...d2 73.Ke2 Re8 (73...Re8 74.Kf3 d1Q 75.Rd1 Kd1-+) 0–1. Mlodzinska,I (1915) – Nowak,Mal (1920), DMP 1st League, 2005. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Nd7 6.Bd3 Qc7 7.Qe2 Ne7 8.c4 Ng6 Now all is on e5 9.Bg6 hg6 10.d3 b6 11.Bf4 Bb7 12.Nbd2 Be7 13.0-0 (13.Ne4 a6=) 13...Rh5 14.h3 0-0-0 15.Nh2 (15.Ne4!?=) 15...Rdh8 16.Qg4? (better 16.a4!?=+) 16...g5 17.Bg3 Ne5 18.Be5 Qe5 19.Rae1 Qd6 20.Nhf3? (20.Ne4 Qc7 21.Qe2-+) 20...Qc7 (better 20...f5!? 21.Qg3 g4 22.Re2-+) 21.Ne5 Bd6 22.Ndf3 (22.Nf7 Qf7 23.Qe6 Qe6 24.Re6-+) 22...Bf3 (22...f5 23.Qg3 g4 24.Nd2 gh3 25.f4-+) 23.Nf3 (23.Qf3 Be5 24.a4 Bh2 25.Kh1 Bf4-+) 23...f5 24.Qh5 (24.Qg5 Rg5 25.Ng5 Qe7 26.Ne6 Qf6-+) 24...Rh5 25.Ng5 0-1. Haroldlee123 (1795) - syzygy (2095), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Ne7 6.Na3 Nd5 7.Nc4 a6 8.ba6 Na6 9.a4 Bd7 10.Bb2 Be7 11.d3? (better 11.c3=+) 11...Nab4-+ 12.a5 b5 13.ab6 Ra1 14.Ba1 Ba4 15.Na3 Qb6 16.Nd2 (16.Be2 Nc2! 17.Nc2 Bc2 18.Qc2 Qa5 19.Nd2 Qa1 20.Qd1 Qd1 21.Bd1 Nf4 22.Ba4 Kd8-+) 16…Qa5 0–1. Zabrocki,Philip (1920) – Sygnowski,T (2140), Shropshire Chess Congress, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Ne7 6.Na3 Nd5 7.Nc4 a6 8.ba6 b6 9.h4 (9.c3 dc3 (worse 9...Ra6 10.cd4 Nd7 11.dc5+-) 10.dc3 Ba6=) 9...h6 (9...Ba6 10.h5=+) 10.Qe2 (10.a7 Ra7 11.Na3 Bb7=+) 10...Ba6 11.Qe4 Nc6 12.c3 b5 Black fights for the Initiative 13.Na3 b4 14.Nc4 bc3 15.Be2 (15.dc3!? Na5 16.Na5 Qa5 17.Bd2 dc3 18.Bc1-/+) 15...Na5-+ 16.d3 (16.Na5 Be2 17.Qe2 Qa5 18.0-0-+) 16...Bb7 17.Na5 Ra5 18.0-0 (18.Qg4 Qa8-+) 18...Qa8 19.Qg4 Ra2 (19...Ra2 20.Ra2 Qa2-+) 0–1. Kobese,Watu (2340) – Sebenik,Matej (2570), 43rd Olympiad, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.b5 Ne7 6.Bd3 Qc7 7.0-0 Ng6 8.Re1 Nd7 Increases the pressure on e5 9.Bg6 hg6 10.c3 d3 11.c4 Nb6 (11...a6!?=) 12.Qb3+= Bd7 (12...a6 13.Na3+=) 13.a4+/- a5 14.Qd3 0-0-0 (14...Bc8 15.Nc3+/-) 15.Qc3+- Be7 (15...Na8 16.d3+-) 16.Qa5 Kb8 (better 16...g5 17.d3 Rh5+-) 17.Qc3 f6 (17...g5 18.d3 g4 19.Nfd2+-) 18.a5 Na8 19.a6 ba6 20.Ra6 Qb7 (20...Bc8 21.Rc6 Qd7 22.ef6 gf6 23.Rce6+-) 21.d4 Nc7 22.ef6 (22.Ra4 cd4 23.Nd4 Rh4+-) 22...gf6 (22...cd4 23.Qa5 Bb4 24.Qb4 Na6 25.Qd6 Qc7 26.Bf4 (worse 26.Qa6 gf6 27.Bd2 Bc8+-) 26...Qd6 27.Bd6 Ka7 28.fg7+- (worse 28.ba6 gf6 29.Be7 Rdf8+-)) 23.Bf4 Kc8 (23...e5 24.de5 Na6 25.ef6 Nc7 26.fe7 Rdg8+-) 24.Bc7 Kc7 (24...cd4 25.Qa5 Bb4 26.Qb4 Qc7 27.Qa4+-) 25.Qa5 Kb8 26.Nc3 (better 26.Rb6 Bc8 27.Rb7 Bb7 28.Re6 Rd7+-) 26...Bd6 (26...cd4 27.Nd4 Rh2 28.Nc6 Bc6 29.bc6 Rh5 30.c7 Kc8 31.cd8R Bd8 32.Ra8 Qa8 33.Qa8 Kc7 34.Re6 Rc5 35.Ne4 Ra5 36.Qa5 Kc8 37.Qa8 Kc7 38.Qa7 Kc8 39.Nd6) 27.Rd6 Kc8 28.Rb6 (28.Rb6 Rh2 29.Nh2 Bb5 30.Rb7 Kb7 31.Nb5 Rd7 32.Qa7 Kc6 33.Qa6) 1-0. marekt (2475) - Haroldlee123 (1685), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb5 Bd7 6.Bd7 Qd7 7.Bb2 (7.bc5 Bc5 8.Ba3 Ba3 9.Na3 Ne7=) 7...Nc6 (7...Qb5 8.a3=+) 8.bc5 (8.b5 Nb4 9.a3 Nd5=) 8...Bc5=+ 9.0-0 Nge7 10.d3 (10.Ba3 Qd5 11.Qe2 Rd8=+) 10...Ng6 11.Re1 Qd5 e5 becomes the focus of attention (11...0-0 12.Qe2=+) 12.Qe2 (12.c4 dc3 13.Nc3 Qd7=) 12...0-0 (12...Rd8 13.Ba3=+) 13.Nbd2 (13.c4 dc3 A) 14.Bc3? Nf4 15.Qe4 Nd3 16.Qd5 ed5-+ (16...Bf2 17.Kf1 ed5 18.Rd1+=); B) 14.Nc3=+) 13...Bb4 14.Qe4 Qe4 (14...Rfd8!?-/+) 15.Re4= (15.Ne4? Be1 16.Re1 Rfd8-+) 15...Bd2 16.Nd2 Nge5 17.Bd4 Nd4 18.Rd4 Rfc8 19.Rc1 Rc7 20.f4 Nc6 21.Rc4 Rac8 22.Kf2 Kf8 (22...b5 23.Re4=+) 23.Ke3 Ne7 24.Rc7 Rc7 25.c4 h6 26.Rb1 b6 27.a4 (27.g4 g6+=) 27...Nf5 28.Ke4 Nd6 29.Ke3 Nb7 (29...g5 30.g4=) 30.Nb3 Nc5 (30...g5 31.g4=) 31.Nc5 Rc5 32.Rb5 Ke7 33.Kd4 Kd6 34.Rc5 (34.h4 g6+=) 34...bc5= 35.Ke4 (35.Ke3 g5=) 35...f5=+ 36.Ke3 e5 37.g3 (37.h4 g6=+) 37...Ke6 (37...ef4 38.Kf4 Ke6 39.g4-/+) 38.Kf3 (38.h4 g6=+) 38...Kf6 39.Ke3 g5 40.Kf3 g4 41.Ke3 a5 42.fe5 (better 42.Kf2!?-/+) 42...Ke5-+ 43.d4 (43.Ke2 Kd4-+) 43...cd4 44.Kd3 h5 45.c5 Kd5 46.c6 Kc6 47.Kd4 Kd6 48.Kd3 Kd5 49.Ke3 Ke5 50.Kd3 f4 51.gf4 Kf4 0-1. Horak,Martin (2330) - Kryakvin,D (2575), Titled Arena Apr 3rd, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb5 Bd7= 6.Qe2 Nc6 (6...Qb6 7.Bd7 Nd7 8.b5=) 7.Bc6 (7.bc5 a6 8.Bd3 Bc5=) 7...Bc6 8.b5 (8.bc5 Bc5 9.0-0 b5=) 8...Bf3 (8...d3!? 9.Qd3 Qd3 10.cd3 Bb5=+) 9.Qf3= Qc7 10.0-0 Ne7 11.d3 Nd5 12.Qg3 g6 (12...Qd7 13.a4=+) 13.Nd2 Bg7 (13...Nc3 14.Re1=+) 14.Nc4= 0-0 15.Bd2 a6 16.a4 ab5 17.ab5 b6 18.h4 (18.Nd6 Qd7=) 18...Ra7 (18...Qd7 19.Nd6=+) 19.h5 Rfa8 20.Ra7 Ra7 21.h6 Bf8 22.Nd6 (22.Qg4!?=+) 22...Qd7-/+ 23.Rb1 (23.Ne4 Qb5 24.Rc1 Ra2-/+) 23...Bd6-+ 24.ed6 f6 25.Re1 Kf7 26.Bf4 Qb5 27.Qf3 Nf4 28.Qf4 Qd7 29.g4 e5! 30.Qe4 (30.Re5 Ra1 Double attack (30...Qd6 Decoy; 30...Qd6 Interception)) 30...Qd6 31.f4 Re7 32.f5 gf5 33.Qf5 Ke8 34.Ra1 Qc6 35.Re1 (35.g5 fg5 36.Qg5 Qe6-/+) 35...b5 (35...Qe6 36.Qe4 Ra7 37.g5-+) 36.g5 Qe6?? (36...fg5 37.Re5 Re5 38.Qe5 Kd7 39.Qg7 Ke6 40.Qh7=) 37.Qe4?? (better 37.Qe6 Re6 38.g6=) 37...fg5 (37...f5 38.Qa8 Kf7 39.Ra1-+) 38.Rf1 (38.Ra1 Rd7-/+) 38...Qa6 39.Qd5 Qb7 (39...g4 40.Qc5 Kd7 41.Qd5 Qd6 42.Qb7 Ke6 43.Qb5=) 40.Qg8 Kd7 41.Rf8 e4?? (better 41...Kd6-/+) 42.Rb8+- Qb8 43.Qb8 e3 44.Qb5 Kd6 45.Kf1 g4 46.Qb6 Kd5 47.Qb3 Kd6 48.Qg8 e2 (48...Kc6+-) 49.Ke1 Kc6 1–0. Steil Antoni,F (2155) – Bensdorp,M (2235), TOP, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.c3 dc3 6.bc5 cd2 7.Nbd2 Bc5 8.Bb5 (8.Ne4 Bb4 9.Bd2 Qd5=) 8...Bd7=+ 9.Bd7 (9.Be2 Bc6=+) 9...Qd7 (9...Nd7 10.Ne4=+) 10.0-0 Nc6 (10...Na6 11.Ne4=+) 11.a4 (11.Ne4!? Be7 12.Qd7 Kd7 13.Rd1 Kc7 14.Be3=) 11...Rd8-/+ 12.Bb2 Qd5 (12...Nge7 13.Ne4 Bb4 14.Qb3-/+) 13.Qc2 (13.Qe2 Nb4=+) 13...Nb4-/+ 14.Qe4 Ne7 (14...Nd3 15.Ba3-/+) 15.Ba3 a5 16.Qg4 (16.Rfc1 Nec6-/+) 16...Ng6-/+ 17.Ne4?? (better 17.Rfc1-/+) 17...h5-+ (17...Ne5 18.Ne5 Qe5 19.Nc5 Qc5 20.Qg7+=) 18.Nf6 (18.Qg5 Qe4 19.Rad1 Be7 20.Rd8 Bd8-+) 18...gf6 19.Qg3 f5 (19...h4 20.Qg4-+) 20.Rac1 (20.Bb4 Bb4 21.Qg5 f4-+) 20...Be7 Black intends h4 (20...Nd3 21.Rc5 Nc5 22.Bc5 Qc5 23.h4-+) 21.Rc7 (21.h3 Nd3 22.Be7 Nc1 23.Rc1 Ne7-+) 21...h4 22.Re7 Ne7 (22...Ke7 23.Qg5 Ke8 24.Bb4 ab4 25.h3 Ne5 26.Ne5 Qe5 27.Rb1-+) 23.Nh4 Qd3 0–1. Gerasimovic,Stanislav (1820) – Pirrello,Christian (1975), World Amateur Team Chess Championship, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.c3 dc3 6.Nc3 cb4 7.Ne4 Qd5 8.Qc2 Nc6 (8...Nd7 9.d4=+) 9.Bc4= Qa5 10.0-0 (10.Bb2=) 10...Nh6 (better 10...Ne5!? 11.Ne5 Qe5-/+) 11.d4+= Nf5 12.Rd1 Be7 13.g4 Nh4 14.Nh4 Bh4 15.Nd6 Kf8 16.Qe4 White plans d5 (16.g5 Ne7+-) 16...Be7+= 17.d5 ed5? (17...Ne5 18.Qe5 Qc5 19.Bf4+-) 18.Bd5 (18.Rd5 Qc7 19.Nf7 Be6 20.Nh8 Kg8+-) 18...Be6? (better 18...Bd6!? 19.ed6 Qd8+=) 19.Be6+- Bd6? (better 19...Qe5 20.Qe5 Ne5+-) 20.Qf5 (20.ed6 fe6 21.Qe6 Qe5 22.Qe5 Ne5+-; 20.Rd6?! fe6 21.Re6 Qb5+=) 20...Ne5 21.Rd6 Ke7 (21...Rd8 22.Bb2 Rd6 23.Be5 Re6 24.Bd6 Rd6 25.Qa5 h5+-) 22.Rd7! Nd7 (22...Nd7 23.Qf7) 23.Qf7 (23.Bd7?! Qf5 24.Bf5 h5=) 23...Kd6 24.Qd7 Ke5 25.f4 (25.Bb2 Kf4 26.Qd2 Kf3 27.Qe3) 25...Ke4 26.Bf5 (26.Qb7 Kd4 27.Qd7 Ke4 28.Qc6 Qd5 29.Qd5) 26...Kf3 (26...Qf5 27.Qf5 Kd4 28.Bb2 Ke3 29.Re1 Kd2 30.Qb1 b3 31.Qd1) 27.Qd3 1–0. Stahl,C (2135) – Acero Solis,A (1975), 16th Prague Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.c3 Nc6 6.b5 Na5 7.cd4+- cd4 8.Qa4 Bc5 9.Bb2 d3 10.Nc3 (10.Bc3 b6 11.Ba5 ba5+-) 10...f5 11.ef6 Nf6 12.Ne4 Bb6 (12...Be7 13.Ne5+-) 13.Nf6 (13.Qb4 Bc7+-) 13...gf6+- 14.Qe4 e5 15.Bd3 Be6 16.0-0 Qd5 (16...Qd7 17.Rfe1 0-0 18.Be2+-) 17.Qh4 0-0-0? (better 17...Kf7 18.Be4 Qb5+-) 18.Qf6 (18.Rac1 Kb8 19.Qf6 Qd3 20.Be5 Ka8 21.Qe6 Rhe8+-) 18...Rhf8 19.Rac1 Nc6 20.Qe5 Rf3 21.Be4 (21.Qd5 Rd5 22.Bc4 Rf2 23.Rf2 Bf2 24.Kf1 Bb6 25.Bd5 Bd5+-) 21...Rf2 (better 21...Qe5 22.Be5 Ra3 23.bc6 bc6 24.Rc6 Kd7+-) 22.Rf2?? (better 22.Bd5 Re2 23.Kh1 Re5 24.Be5 (24.Bc6?! Rc5 25.Ba3 Rc1 26.Rc1 Kb8+-) 24...Rd5 25.Rf8 (25.bc6?! Re5 26.Rf8 Kc7=) 25...Kd7 26.bc6 bc6 27.Bf4+-) 22...Bf2+= 23.Kf1?? (better 23.Kh1 Qe5 24.Be5 Rd2 25.bc6+-) 23...Qc4!-/+ (worse 23...Qe5 24.Be5 Rd2 25.bc6 bc6 26.Rc6 Kd7 27.Rc7 Ke8 28.a4+- (28.Bh7?! Bb6 29.Rc3 Rf2 30.Ke1 Rg2=)) 24.Rc4 Bc4 25.Kf2 Ne5 26.Be5 Rd2 27.Kg3 (27.Kf3 Bb5 28.Bh7 Bc6 29.Ke3 Rg2-/+) 27...Bb5 (27...Bd3 28.Bf3-+) 28.a3 Bc6 29.Bf5 Kd8 30.Bh7 Rg2 31.Kh4 Ke7 32.Kh5 (32.h3 Bd7-+) 32...Ke6 (32...Ra2 33.Kg5-+) 33.Bf4 (33.Bg3 Be8 34.Kg5 Ra2-+) 33...Bf3 34.Kh6 b5 (34...Rg4 35.Bg5 Ra4 36.Bg8 Kd7 37.Bc1-+) 35.h4 (35.Bg3 Rg1 36.Bf2 Ra1-+) 35...a5 (35...Rg4 36.Bg5 Ra4 37.Bd3-+) 36.h5 (36.Bg5 b4 37.ab4 ab4 38.Bg8 Ke5-+) 36...b4 37.ab4 ab4 38.Bg5 Rh2 (38...b3 39.Bg8 Kf5 40.Bh7 Ke5 41.Bd8-+) 39.Bg6? (better 39.Bg8 Ke5 40.Be7-+) 39...b3 40.Bf4 (40.Bc1 b2 41.Bb2 Rb2-+) 40...Rh1 (40...Rh1 41.Bd3 b2-+) 0–1. Merza,Morris (2145) – Maatman,Nick (1990), Open NK Dieren NED, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.c3 Nc6 6.b5 Nce7 7.Bd3 Ng6 8.0-0 Nf4 9.Be4 (9.Qc2 g5 10.cd4 Nd3 11.Qd3 g4+=) 9...d3= 10.c4 (better 10.Ne1!?=) 10...Ne2 11.Kh1 f5 (11...Nc1?! 12.Qc1 f5 13.ef6 Nf6 14.Nc3+=) 12.ef6 Nf6 (worse 12...Qf6 13.Nc3+=; 12...Nc1 13.f7! Kf7 14.Qc1+/-) 13.Ng5 Ng4 14.f3?? (better 14.Nf3 Nh2 15.Nh2-/+) 14...Nh2-+ (worse 14...Qg5 15.fg4 Qe5 16.Bd3 Nc1 17.Qc1-+; 14...Nc1?! 15.fg4 Qg5 16.Qc1-/+) 15.f4 (15.Rf2 Nf1 16.Nh3 Nfg3 17.Kh2-+) 15...Nf1 16.Qf1 Ng3 (16...Ng3 17.Kg1 Qd4 18.Qf2 Ne2 19.Kf1 Qa1-+) 0-1. Hernandez Gonzalez,W (2480) - Indjic,A (2605), Titled Tuesday, 2021. (=1.e4 C00: French: Unusual White 2nd moves 1...e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.c3 Nc6 6.b5 Nce7 7.cd4 cd4 8.Bb2+=.

5.Bc4 Nc6 6.bc5 Bc5 7.0-0 Nge7 8.d3 Ng6 9.Bb5 (9.Re1 Qc7=) 9...Bd7=+ 10.Bc6 Bc6 (worse 10...bc6 11.c3+=) 11.Re1 0-0 12.a4 (12.Nbd2 Qc7-/+) 12...Qc7 (12...f6 13.Nbd2 Ne5 14.Ne5 fe5 15.Nc4-/+) 13.Qe2 (13.Nbd2 Bb4 14.Ba3 Bf3 15.Nf3 Be1-/+) 13...Bf3 14.gf3 (14.Qf3!? Bb4 15.Re2-/+) 14...Bb4 15.Bd2 Bd2 16.Nd2 Qc2 17.Rec1 Nf4 18.Rc2 Ne2 19.Kf1 Nf4 20.Ra3 (20.Rb1 b6 21.Nb3 Rfd8-+) 20...Rac8 21.Nc4 (21.Rc4 f6 22.ef6 gf6-+) 21...Rc5 22.Ke1 Rfc8 (22...f6 23.ef6 Rf6 24.Rb2-+) 23.Kd2 Ng6 24.Rb3 b6 25.Na3? (better 25.Rb5-+) 25...Ne5 26.Rc5 Rc5 (worse 26...bc5 27.f4 Nf3 28.Ke2 Ng1 29.Kf1-+) 27.Nb5 (27.f4 Nf3 28.Ke2 Nh2-+) 27...Nf3 28.Ke2 Nh2 29.Na7 h5 30.Rb6 Ra5 (30...Rc2 31.Kd1 Rf2 32.a5-+) 31.Nc6?! (31.Rb8 Kh7 32.Rb5 Ra4 33.Rh5 Kg6 34.Rh2 Ra7 35.Rg2 Kf6 36.Kf3-+) 31...Ra4 32.Rb8 Kh7 33.Rd8 (33.Rb2 g5-+) 33...Ra2 34.Ke1 Nf3 35.Kf1 e5 36.Rd5 (36.Rd7 f6 37.Ra7 Ra7 38.Na7 h4-+) 36...f6 37.Ne7 (37.Ra5 Rc2 38.Ne7 h4-+) 37...h4 (better 37...g5 38.Rd4 Ra1 39.Ke2 Nd4 40.Kd2 Ra2 41.Ke1 Nf3 42.Kd1 Rf2 43.Nd5-+) 38.Nf5 h3 39.Ng3 (39.Rc5 Ra1 40.Ke2 h2-+) 39...Ra1 (better 39...g5 40.Rd7 Kg6 41.Rd8-+) 40.Ke2 Ng5 41.Nf1 (41.Rc5 h2 42.Kd2 Rg1-+) 41...Ra2 (better 41...Ne6 42.Nh2 Nf4 43.Kf3 Nd5-+) 42.Nd2 (42.Kd1 Nf3 43.Ng3 Rf2 44.Rc5 Rd2 45.Kc1-+) 42...h2 43.Rd7 (43.Rd8 h1Q 44.Ra8 Ne6 45.Rh8 Kh8 46.f3 Qg2 47.Ke1 Qd2 48.Kf1 Qc1) 43...h1Q 44.Rg7 (44.Ra7 Ne6 45.Rg7 Kg7 46.f3 Qg2 47.Ke1 Qd2 48.Kf1 Qc1) 44…Kg7 (44...Kg7 45.f3 Qg2 46.Ke1 Qd2 47.Kf1 Qc1) 0-1. Vasse,Albert (1930) - Otten,Martijn (2100), Hoogeveen NED, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.d3 cb4-/+ 6.Be2 Nc6 7.0-0 (7.Nbd2 f6-/+) 7...f6 (7...Qd5 8.Bb2-/+) 8.Bf4 fe5 9.Ne5 Nf6 (9...Qf6 10.Nc6 Qf4 11.Bf3-/+) 10.Bf3 (10.Bh5!? g6 11.Nc6 bc6 12.Bf3=) 10...Ne5-/+ 11.Be5 Bd6 12.Re1 0-0 13.Nd2 Be5 14.Re5 Qc7 15.Nc4 Bd7 16.Qe2 (16.Qe1 Rab8=+) 16...Rac8-/+ 17.a4 ba3! 18.Na3 (18.Ra3 b5 Combination; 18.Na3 a6 Passed pawn) 18...Nd5 (better 18...a6!?-/+) 19.Bd5=+ (19.Re6?? Nf4 20.Qe4 Qc3-+) 19...ed5 20.Rd5 Rce8 (20...Rf4!?=+) 21.Qd2+= Bc6 22.Rd4 Qe5 (22...Re6 23.c3=) 23.c3 Qh5 24.Rf4 (24.f3!?+=) 24...Qg6= 25.Rf8 Rf8 26.g3? (26.f4!? Rf4 27.Nc4=) 26...Qg4 (26...Qh5!? 27.Re1 Qf3-+) 27.Qd1-/+ Qf5 28.Qe2 Re8 29.Qa2?? (better 29.Qd1 Qd5 30.f3-+) 29...Kh8 30.f4 Qd3 (30...Qd3 31.Qf2 Re2-+) 0–1. Roosink,T (1810) – Steenbekkers,F (2215), 12th HZ Open, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.d3 Nc6 6.c3 cb4 7.cd4 Nd4 8.Nbd2 Ne7 9.Bb2 Nf3 10.Nf3 Nd5 11.d4 Bd7 12.Bc4 Bc6 13.0-0 Be7 14.Qd2 b5 15.Bd3 Nb6 (15...Rc8 16.Rfc1-/+) 16.Rac1 (16.Rfc1 Qd5-/+) 16...Nc4!-/+ 17.Qe2 (17.Bc4 bc4 Passed pawn) 17...a6 18.Nd2 Na5 (18...Bg2 19.Kg2 Nb2 20.Be4-/+) 19.Ne4 (19.Qg4 Bf8=+) 19...Rc8 (19...Bd5 20.Nc5-/+) 20.Nd6 (20.Nc5 Bc5 21.Rc5 Bd5=+) 20...Bd6-/+ 21.ed6 Qd6 22.d5 (better 22.Qg4!?=+) 22...Qd5-+ 23.Be4 Qd7 (23...Qg5 24.f4 Qh6 25.Rc5=+) 24.Rfd1-/+ Qb7 25.Bc6 Rc6 26.Rc6 (26.Qd2 Qe7 27.Bg7 Rg8=) 26...Qc6 (better 26...Nc6 27.Qh5 Rg8=+) 27.Qe5 Rf8 28.Qg7 Nb7 (28...Qc4 29.Rc1 Qd5 30.Rc8 Kd7 31.Rc1=) 29.Bf6 (29.Qh7 f6+=) 29...Qc2= 30.Qg4 a5?? (30...Qc4 31.Qg3 Qc8+-) 31.Qd4+- Qc7 (31...Qd1 32.Qd1 Rg8+-) 32.Qa7 Qc8 33.Qb7!! (33.Qb7 Qc7 34.Qb5 Qc6 35.Qc6) 1–0. Csiba,D (2355) – Skara,V (2215), Open ch–SVK A, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bd3 cb4 6.a3 Nc6 7.0-0 Bc5 8.ab4 Nb4 9.Be4 Ne7 (9...f5 10.ef6 Nf6 11.c3 Ne4 12.cb4=+) 10.Na3 h6 11.Nc4 0-0 12.Ba3 Rb8 (12...Ned5 13.Nd6=) 13.Bb4 Bb4 14.Ra7 b5 15.Nb2 Qb6 16.Qa1 Nc6 17.Bc6 Qc6 18.Nd4 Qe4 19.c3 (better 19.Nd3!? Bd2 20.Rd1+=) 19...Bc5=+ (19...Qe5? 20.Nd3 (20.cb4 Qd4 21.Qa3 Rd8-/+) 20...Bc3 21.Ne5 Ba1 22.Rfa1+- (worse 22.Raa1 Rb7+-)) 20.Re1 Qd5 21.Ra5 The isolani on b5 becomes a target (21.Nd3!? Ba7 22.Qa7=+) 21...Bd4-/+ 22.cd4 Bb7 23.f3 Qd4 24.Kh1 Qd2 25.Qc1?? (better 25.Rd1 Qe3 26.Re1-/+) 25…Qa5-+ 0-1. Grabinsky,V (2215) - Bromann,T (2390), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bd3 Ne7 6.bc5= Nbc6 7.Na3 (7.Ba3 Ng6 8.Bg6 hg6=) 7...Ng6 8.Nc4 Bc5 9.0-0 0-0 10.Re1 b5 11.Nd6 (11.Nb2 Qc7=) 11...Bd6 12.ed6 a6 13.a4 b4 (worse 13...Qd6 14.ab5 Nb4 15.Be4+/-) 14.Be4 Qd6 15.Bb2 Rb8 16.Bc6 Qc6 17.Nd4 Qd5 18.Qf3 Bb7 19.Qd5 Bd5 (19...ed5?! 20.Re3=) 20.a5 Rfc8 21.Re3 Rc5 22.c3 bc3 (22...b3!?-/+) 23.Bc3=+ Bc4 24.g3 Ne7 25.Nf3 f6 26.Bd4 Rf5 (26...Rc6 27.Rae1-/+) 27.Rc3 Bb5 28.Nh4 (28.Rb1 Rc8 29.Rc8 Nc8=+) 28...Rd5=+ 29.Bb6 (29.Be3!?=+) 29...Rd2-/+ 30.Rc7 Nd5 31.Ra7 (better 31.Nf3 Rd3 32.Ne1-+) 31...Nb6 32.ab6 Rb6 33.Rc1 Rc6 34.Rc6 Bc6 (34...Rd1 35.Kg2 Bc6 36.Kh3-+) 35.f3 Bb5 36.Re7 (36.f4 Rd7 37.Ra8 Kf7-+) 36...Bc4 (better 36...Bd7 37.Kf1 Kf8-+) 37.Rc7 Bb5 38.Ng2?? (38.Re7 Bd7 39.Kf1-+) 38...Rd7 39.Rc8 Kf7 40.Nf4 a5 41.Ra8 a4 42.h4 (42.Ra5 Bc6-+) 42...e5 43.Ng2 Rd1 44.Kf2 (44.Kh2 Bc6 45.Ra7 Kg6-+) 44...Rd2 (better 44...Rf1!? 45.Ke3 Rf3 46.Kf3 Bc6 47.Ke2 Ba8 48.Ne3-+) 45.Kg1 Rd3 0-1. Grabinsky,V (2215) - Pon,M (2185), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.Bb2 Nc6

6.b5 Na5 7.d3 (7.Be2 Ne7=) 7...b6 8.c3 dc3 9.Nc3 g6 (9...Bb7 10.Be2=) 10.Be2+= f6 11.0-0 f5 12.d4 Bb7 13.Qd3 c4 14.Qc2 Be7 15.Rad1 Bb4 (15...Rc8 16.Bc1+/-) 16.d5 (better 16.Qa4!? Bf8 17.Nd2+-) 16...ed5+= 17.e6 Ne7? (better 17...Nf6 18.Nd5 Bd5 19.Bf6 Qf6 20.Rd5 Rc8+=) 18.Nd5+- Bd5 19.Bh8 Qc7 20.Be5 Bd6 (20...Qc5 21.a4+-) 21.Bd6 Qd6 22.Rfe1 0-0-0 23.Ng5 Be6 (23...Qb4+-) 24.Rd6 (24.Rd6 Rd6 25.Bf3+-) 1-0. Snoopy85 (2115) - Haroldlee123 (1765), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.b5 Nce7 7.Na3 Nd5 (7...Ng6 8.Be2=) 8.Nc4 (8.Bc4 Be7+=) 8...Nh6 (8...a6 9.ba6 b6 10.c3 dc3 11.dc3 Ba6 12.a4=) 9.g3 (9.c3 dc3 10.dc3 Be7+=) 9...Be7 10.Bg2 (10.c3 dc3 11.dc3 0-0=) 10...0-0 11.0-0 Bd7 (11...a6 12.a4=+) 12.a4 a6 13.Na3 (13.ba6 Ra6 14.c3 dc3 15.dc3 Qa8=) 13...Qe8 (13...Qa5 14.c4 Nb6 15.d3 Na4 16.Bc1-/+) 14.c4 dc3 15.dc3 (15.Bc3 ab5 Decoy; 15.dc3 ab5 Combination) 15...ab5 16.ab5 Bb5 17.c4 Ba4 18.Qe2 (18.Qb1 Nb4=+) 18...Nb4 19.Nd2 (19.Bc1 Nf5=+) 19...Bc6 (19...Qd7 20.Bc3-/+) 20.Ne4=+ Nf5 21.Qh5 (21.Nb5 Bb5 22.Ra8 Qa8 23.cb5 Rd8=+) 21...Nd4 (21...Nd3 22.Qe2 Nb2 23.Qb2 Qd7-/+) 22.Qh3 (22.Rfd1 Qd7=+) 22...Ne2 (22...Nd3 23.Bd4 cd4 24.Nc2 Ne5 25.Nd4 Nc4 26.Nc6 bc6 27.Rac1-+) 23.Kh1-/+ Nd3 24.Qg4 Nb2 (24...Ng3 25.fg3 Nb2 26.Qe2-/+) 25.Nf6 (better 25.Qe2!? Na4 26.Nb5=+) 25...Bf6-+ 26.ef6 Bg2 27.Kg2 Qc6 28.Kh3 g6 (28...Ng1 29.Rg1 g6 30.Qe2-/+) 29.Qe2 Na4 30.Nb5 Nb6 31.Ra8 Ra8 (worse 31...Na8 32.Rd1=) 32.Rd1 Qc8 (32...Nd7 33.Rd6 Qc8 34.Qf3-/+) 33.Nd6=+ Qd8 (33...Qc7 34.Qe3 Nd7 35.Nb5+-) 34.Ne4 (34.Qf3 Nd5 35.Ne4 Qc8=) 34...Qf8 (34...Qb8 35.Nd6=) 35.Rd6 (35.Rb1 Ra6=) 35...Nc8 (better 35...Na4!? 36.Rd7 b6=) 36.Rd7+- Na7 37.Qe3 Nc6 38.Nd6 (38.Nc5 e5+-) 38...Rd8 (38...e5!?+-) 39.Rf7+- Qf7 40.Nf7 Kf7 41.Qh6 Kf6 42.Qh7 Rb8 (42...Rd4 43.Qb7 Ne5 44.Qc8+-) 43.f4 b5?? (43...e5+-) 44.Qc7 Rh8 45.Kg2 Ne7 (45...bc4 46.Qc6 Rd8 47.Qc5+-) 46.Qe5 (46.Qe5 Kf7 47.Qh8 bc4 48.Kf3+-) 1–0. Ossa,Orlando (2250) – Cayon,Diego Mauricio (1990), Cali Colombia, Regional Championship, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.b5+/- Nce7 7.c3 Nf5 8.cd4 Nd4 9.Nd4 cd4 10.Qg4 (10.Bd3 Nh6+/-) 10...Qc7 (10...Nh6!? 11.Qd4 Qd4 12.Bd4 Nf5+=) 11.Qd4+/- (worse is 11.Bd4 Nh6 12.Qf3 Nf5+=) 11...Bc5 12.Qg4 Ne7 (12...f5 13.Qc4+/-) 13.Bd3 (13.Qg7!? Rf8 14.Qh7+-) 13...h5 14.Qc4 Bd7 15.0-0 Rc8 16.Qe4 Nd5 (better is 16...Nf5!?+/-) 17.Nc3+- Nc3 18.Bc3 g6 19.Rac1 Qb6 20.a4 a5 21.Qf4 0-0 22.Qh6 Bd4?? (better is 22...Bb4+-) 23.Bg6! fg6 (23...fg6 24.Qg6 Double attack) 24.Qg6 Kh8 25.Qh5 Kg8 26.Qg4 (26.Qg4 Kh7 27.Bd4+-) 1–0. Carrascoso Morales,A (2345) – Mingarro Carceller,S (2235), Quart de Poblet ESP, 2nd Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bb5 Qb6 7.a4 a6 8.Bc6 (8.bc5!? Bc5 9.Bc6 bc6 10.Ba3=) 8...bc6=+ 9.c3 d3 (9...dc3 10.dc3 cb4 11.Nbd2=+) 10.a5 Qb8 (10...Qb7 11.0-0=) 11.Na3 (11.Qb3 cb4 12.0-0 c5=) 11...Ne7 (11...cb4!? 12.Nc4 Qb5=+) 12.Nc4+= Nd5 13.Qa4 (13.bc5 Bc5 14.Ba3 Ba3 15.Ra3 0-0+=) 13...Qb5 (13...cb4 14.Qc6 Bd7 15.Nd6 Bd6 16.Qd6 Qd6 17.ed6 f6-/+) 14.0-0 (14.bc5 Bc5 15.Bc1 Rb8+=) 14...Bd7 (14...cb4!? 15.Nd6 Bd6 16.ed6 Qa4 17.Ra4 c5-/+) 15.Qb5 (better 15.bc5!? Qa4 16.Ra4 Bc5 17.Ba3 Ba3 18.Ra3+=) 15...cb5-/+ 16.Nb6 Nb6 17.ab6 c4 (better 17...Bc8!?-/+) 18.b7= Rb8 19.Ra6 Be7 20.Nd4 Rb7 21.Ra8 Bd8 22.Rfa1 0-0 23.R1a6 (23.f4 Bb6=+) 23...Bb6=+ 24.Rf8 Kf8 25.Kf1 f6 26.f4 Ke7 27.Kf2 (27.Ke1 fe5 28.fe5 Bc7-+) 27...Bc7 28.Ke3 (28.Nf3!?-/+) 28...fe5-+ 29.fe5 Be5 30.Ra5? (better 30.h3-+) 30...Bh2 31.Ra8 (31.Nf3 Bc7 32.Ra6 Rb8-+) 31...Bg1 (better 31...e5 32.Nf3 Bf4 33.Kf2 e4-+) 32.Ke4 Be8 (32...Bf2 33.Ra6-+) 33.Ra5 (33.Ra6 Bf7-+) 33...Bg6 (33...Bh2 34.Ra6 Bd6 35.Kf3-+) 34.Kf3 (34.Kf4-+) 34...Be8 35.Ke4 h5 36.Ra6 Bd7 37.Kf3 (37.Ra8 h4-+) 37...g5 (37...e5!? 38.Nc6 Bc6 39.Rc6-+) 38.Ke4 g4 39.Kf4 (39.Ra1 Bf2-+) 39...Rb8 40.Kg5 Rg8 (40...Rf8 41.Ra1 Bd4 42.cd4-+) 41.Kh5 Be8 (better 41...Rh8!? 42.Kg5 Rh2 43.Ra7-+) 42.Kh4 Bf2 43.g3 Bd7 44.Ra7 (44.Bc1 Rg7 45.Bb2 Kf6-+) 44...Be1 (better 44...e5 45.Nc6 Kd6 46.Rd7 Kd7 47.Ne5 Ke6 48.Ng4 Rh8 49.Kg5 Be1-+) 45.Kh5?? (45.Bc1-+) 45...Bd2 46.Nb5 (46.Ba1 Kd6 47.Ra6 Kd5 48.Ne6 Be6 49.Ra7 Bf5 50.Rd7 Bd7 51.Bb2 Bf5 52.Bc1 Rh8) 46...Rg5 (46...Be3 47.Nc7 Ba7 48.Bc1-+) 47.Kh4 Rb5 (47...Rb5 48.Kg4 Bh6-+) 0-1. Hrabinska,M (2235) - Tikhonov,Viacheslav (2270), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bb5 Bd7 7.Qe2 Nb4-/+ 8.Na3 Bb5 (8...a6 9.Bd7 Qd7 10.0-0-/+) 9.Qb5 Qd7 10.Qd7 Kd7 11.Ng5 (11.0-0 f6-/+) 11...Nh6 12.0-0 (12.Nf3 f6-/+) 12...f6-+ 13.Nf3 (13.Ne4 Ng4-+) 13...Be7 (13...Nf7 14.ef6 gf6 15.c3-+) 14.c3 (14.Rfb1 Ng4 15.ef6 gf6-/+) 14...Nd3 15.ef6 gf6 (15...Nb2?! 16.fe7 dc3 17.dc3=+; 15...Bf6?! 16.Rfb1-+) 16.Rab1 e5 17.Ba1 (17.Nc2 Rhb8-+) 17...Rab8 (17...b6 18.Nc4-+) 18.Rb3 Nf4 (18...e4 19.cd4 c4 20.Nc4-+) 19.Rfb1 b6 20.g3 Rhg8 (20...Ne2 21.Kf1 d3 22.c4-/+) 21.cd4 (21.Kf1 Ne6-+) 21...cd4 22.Nc4 (22.Kf1 Ne6-+) 22...Nf7 (22...Rbc8 23.Kf1 Rc4 24.gf4-+) 23.a4 (23.Kf1 Nd5-+) 23...Nd6 (23...Rbc8 24.d3-+) 24.Na3 (better 24.Nce5!? fe5 25.Ne5 Ke8 26.Re1-/+) 24...Nd5 25.d3 (25.h3 Ne4 26.a5 Ba3 27.Ra3 b5-+) 25...Rgc8 (25...Nb7 26.Nc4 Nc5 27.Ra3-+) 26.Nd2 Nb7 27.Nac4 Nc5 28.Ra3 a5 (28...a6!? 29.f4 ef4 30.Nf3-+) 29.Kf1 Nb4 30.Ke2 Ke6 31.f4 (31.h3 Kd5-+) 31...Kd5 32.fe5 (32.Rc1 Rc7-+) 32...fe5 33.Rf1 Rf8 34.Rf8 Bf8 (34...Rf8?! 35.Nb6 Ke6 36.Nbc4-+) 35.Bb2 (35.h3 b5 36.ab5 Rb5 37.Na5 Nbd3-+) 35...Bh6 (35...Nc2 36.Rb3 Nb3 37.Nb3-+) 36.Bc1 (36.Ba1 Bd2 37.Nd2 b5 38.ab5 Rb5-+) 36...Bd2 37.Nd2 Rf8 (better 37...Rc8 38.Bb2-+) 38.Bb2 (38.h3-+) 38...Ncd3 39.Rd3 Rf2!! 40.Kf2 Nd3 41.Ke2 (41.Kf3 Nb2 42.Ne4 h6-+) 41...Nb2 0–1. Kryvoruchko,Vita (2200) – Tafforeau,Romain (2050), Saint–Lo FRA, Open Junior, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.Bb2 Nc6)

6.bc5 Bc5= 7.Bb5 (7.Na3 Nge7=) 7...Nge7=+ 8.0-0 0-0 9.Bc6 Nc6 10.d3 Qd5 (10...Qb6 11.Qc1=+) 11.c4= Qd7 (11...dc3 12.Nc3 Qd7 13.Qd2=) 12.Nbd2 b6 13.Re1 Bb7 14.Ne4 Be7 15.a3 Rae8 16.Qd2 Qc7 (16...Rd8 17.h3=) 17.Ng3 (17.Nd4!? Nd4 18.Bd4+-) 17...f6= 18.Qe2 (18.ef6!? Bf6 19.Ne4=) 18...f5 (18...fe5 19.Ne5 Ne5 20.Qe5=+) 19.Qd2 ½–½. Cobos Navarro,Francesc (2010) – Gomez,Jose (1985), 1nd Can Ninetes Spain, Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.Bb2 Nc6)

6.b5 Nb4

7.c3 dc3 8.dc3 Qd1 9.Kd1 Nd5 10.c4 Nde7 11.Nbd2 b6 12.Bd3 Bb7 13.Be4 0-0-0 14.Ke2 Nh6 15.Rhd1 Ng6 16.g3 Be7 17.Bb7 Kb7 18.Ne4 Rd1 19.Rd1 Rd8 (19...Kc7!?+/-) 20.Rd8 Bd8 21.Nd6 Kb8 22.Bc1 f6 (22...Nh8 23.Ne8+-) 23.Bh6 gh6 24.Nf7 Be7 (24...Kc8 25.ef6 Bf6 26.Nh6+-) 25.ef6 Bf6 26.Nh6 Kc7 27.Kd3 Kd7 28.Ke4 Bg7 29.Ng4 Kd6 30.h4 (30.Ng5 Nf8+-) 30...h5 31.Ne3 Ne7 32.Ng2 (32.g4!? hg4 33.Ng4 Nf5+-) 32...Ng8+/- 33.Ng5 Bd4 34.f3 (better is 34.Nf4 Nf6 35.Kf3+/-) 34...Bf2?? (better is 34...Nf6 35.Kd3 Bf2=) 35.Kf4+- e5 (35...Nf6 36.g4+-) 36.Kf5 Ne7 37.Kf6 Ng8 (37...Kd7 38.Ne4 Bd4+-) 38.Kg7 1–0. Hamalainen,Sami (2215) – Peuraniemi,Pertti (2020), FIN, SM–Liiga, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.c3 dc3 8.dc3 Qd1 9.Kd1 Nd5 10.c4 Nde7 11.Bd3 b6 12.Be4 Rb8 13.Kc2 Bb7 14.Nc3 Nh6 15.a4 Be4 (15...Bc8 16.Rhd1+/-) 16.Ne4 Ng6 17.h4 Nf4 (17...Rd8 18.h5 Nf4 19.Bc1+-) 18.g3 Nh5 19.a5 Ng4 20.ab6 ab6 21.Ra7 f5 (better is 21...h6+-) 22.ef6! gf6 (22...Ngf6 23.Nf6 Double attack; 22...gf6 23.Nh2 Decoy; 22...Nhf6 23.Neg5 Combination) 23.Re1 Be7 24.Nd6!! Bd6 25.Re6 Kf8 26.Rd6 Rg8 (26...h6+-) 27.Rh7 Ng7 28.Bf6 Nf2 (28...Nf5 29.Rd5 Nge3 30.fe3 Ne3 31.Kc1 Nd5 32.cd5 Rg3 33.Ng5 Rg1 34.Kd2 Rg2 35.Kd3 Rg3 36.Ke4 Rg4 37.Kf5 Rf4 38.Kf4 Ke8 39.d6 Ra8 40.d7 Kf8 41.Rh8) 29.Ng5 (better is 29.Rd7 Re8 30.Ne5 Re5 31.Be5 Ke8+-) 29...Re8 (29...Ng4 30.Bc3 Ne3 31.Kb3+-) 30.Bg7 (better is 30.Rb6!? Ne4 31.Ne4 Re4+-) 30...Rg7 31.Rf6 (31.Rf6 Kg8 32.Rg7 Kg7 33.Rf2+-) 1–0. Castella Garcia,F (2335) – Lopez Mulet,Inigo (2120), Mislata ESP, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.c3 dc3 8.Bc3 Nd3 9.Bd3 Qd3 =.

7.Bc4 d3 8.Na3 dc2 9.Qe2=.

7.Bc4 Ne7 8.0-0+= Ng6 9.d3 Be7 10.Nbd2 (10.a3 Nd5=) 10...0-0 11.a3 Nd5 12.Qe2 b6 13.Ne4 Bb7 14.Rfe1 Qd7 15.h4 (15.Rab1 a6 16.Bc1 Qc7=+) 15...Rfd8 (15...a6 16.ba6 Ba6 17.Ba6 Ra6 18.g3-/+) 16.g3 Bf8 (16...Qc7 17.Ned2=+) 17.Bc1 (17.h5 Nh8=) 17...Nc3 (17...Qc7!?-/+) 18.Nc3= dc3 19.h5 (19.Ng5 h6 20.h5 Ne7= (worse 20...hg5 21.hg6 Be7 22.gf7 Kf7 23.Qh5 Kg8 24.Bg5+/-)) 19...Ne7 20.h6 Nf5 21.hg7 Bg7 22.Bg5 Re8 23.Bf6 (better 23.Rab1=) 23...Kh8?? (better 23...Bf6!? 24.ef6 Qd8-/+) 24.Bg7 (24.Ng5!? Kg8 25.Qh5+/-) 24...Kg7= 25.Ng5 h6 (25...Nd4 26.Qg4 Rg8 27.Qf4=) 26.Ne4+= Be4 27.de4 (27.Qg4 Kh8 28.Re4 Rg8+=) 27...Nd4 28.Qg4 (28.Qd3 Rad8=) 28...Kh7= 29.Qf4 Nc2 30.Kg2? (30.Red1 Qe7 31.Rac1 Na3 32.Rc3 Nc4 33.Rc4 a6 34.ba6 Ra6=+) 30...Rg8 (better 30...Ne1 31.Re1 Rg8-+) 31.Rh1= Rg6 32.Rac1 (32.Rad1 Nd4 33.Qc1 c2 34.Qc2 A) worse 34...Nc2 35.Rd7 Na3 36.Bd3+= (36.Rf7? Kg8-+); B) 34...Qc7=+) 32...Nd4 (32...Na3 33.Be2 Rag8=+ (33...Nb5? 34.Bb5 Qe7 35.Rc3+-)) 33.Rc3= Rag8 34.Rcc1 R8g7 (34...Nb5!? 35.Bb5 Qb5 36.Qf7 R8g7=) 35.Rh4 Qe7 (35...Qb7 36.Rch1 Nf5 37.Rh5+/-) 36.Rch1 Kg8 37.Rh6 Kf8 38.Rh8 Rg8 39.Rg8 Rg8 40.Qh6 Ke8 41.Qh7 (41.Qf6 Nc2 42.Bd3 Nd4+/-) 41...Qf8 (41...Qg5 42.Rh4+=) 42.Qh5 Qg7 43.Qh4 (better 43.Rh3!?+/-) 43...Qe5= 44.Rd1 (44.Qh7 Rf8=) 44...Kd7 (44...Rh8 45.Qg4=+) 45.f3 (45.Qh7 Rg7 46.Qh4 Rg6=) 45...Rg6 (45...Kc8 46.Rd2-/+) 46.Bf1 Qf6 (46...Qg7!?=+) 47.Qf6+= Rf6 48.Rd4?? (better 48.e5 Rg6 49.Bd3=) 48...cd4-/+ 49.e5 Rg6 50.Bd3 Rg8 (50...f5 51.ef6 Rf6-+) 51.Be4? (better 51.f4!?-/+) 51...Rc8-+ 52.f4 Rc3 0-1. Horak,Martin (2330) - Volkov,Maksim (2260), Titled Arena May 8th, 2021. (=1.e4 C00: French: Unusual White 2nd moves 1...e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

5.bc5 Bc5

6.Ba3 Ba3 7.Na3 Ne7 8.Nb5 Nbc6 9.Nd6 Kf8 10.Nc8 Rc8 11.Bd3 Qd5 12.Qe2 Ng6 e5 draws heavy fire 13.Be4 Qc5 14.0-0 (14.Bc6 Qc6 (worse 14...bc6 15.0-0+=) 15.Qd3 Nf4 16.Qd4 Ng2 17.Ke2 Qc4 (17...Qc2 18.Rhc1 Nf4 19.Qf4 Qc1 20.Rc1 Rc1 21.Ng5+-) 18.Qc4 Rc4=) 14...Nge5=+ 15.Ng5 (15.Rab1 b6=+) 15...h6 16.Qh5 (16.Nf3 Nf3 17.Qf3 f5=+) 16...Nf3 (16...g6 17.Qh3 Kg7 18.Nf3-/+) 17.Qf3=+ hg5 18.Rab1 b6 (18...Qe5 19.g3 g4 A) 20.Qg4? f5 21.Bf5 ef5-+ (21...Qf5?! 22.Qf5 ef5 23.Rb7-+); B) 20.Qa3 Kg8 21.f3-/+) 19.a4 (19.Rfe1!?=+) 19...Qd6 20.g3 (20.h3 f5 21.Bf5 ef5 22.Qf5 Ke7 23.Rbe1 Kd8 24.Qg5 Ne7 25.Qg7 Re8=+) 20...Ne5-+ 21.Qe2 Rc5 22.f4 gf4 23.Rf4 Ke7 24.Rb5 f5 25.Bd3 (25.Bg2!?-/+) 25...g5-+ Black prepares g4 (25...Nd3?! 26.Qd3 Rd8 27.Rh4-/+) 26.Rf2 g4 27.Kf1 (27.Rc5 Qc5 28.Qd1 Nf3 29.Rf3 gf3 30.Qf3 Qe5-+) 27...Qd5 (27...Nd3?! 28.Qd3 Rhc8 29.Rc5 Qc5 30.Rf4-+) 28.Rg2 (28.Kg1 Nf3 29.Kf1 Qa2-+) 28...Nf3 (better 28...Qf3!? 29.Kg1 Nd3 30.Qd3 Qd1 31.Qf1 Qf1 32.Kf1 Rc2 33.Ke2-+) 29.Rc5 bc5 30.Bc4 (30.a5 Qa2 31.Bc4 Nd2 32.Qd2 Qc4 33.Kg1 Qc3 34.Qg5 Kd6-+) 30...Qe5 (30...Nd2!? 31.Qd2 Qc4 32.Kg1 Qa4 33.Qg5 Kd6 34.Qf4 Kd7 35.Re2-+) 31.Qe5 Ne5 32.Be2 Rb8 (32...c4!? 33.Rf2-+) 33.Bb5 Rb6 34.Re2 Kd6 (34...Kd6 35.c4 a5-+) 0–1. Nery Junior,J (1985) – Toth,Chr (2355), Continental ch–Americas, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 b6 7.c3 dc3 8.Bc5 bc5 (8...cd2 9.Nbd2 bc5 10.Ne4+=) 9.Nc3+- Ne7 10.Ne4 0-0 11.Nc5 Nbc6 (11...Nd7 12.Rc1+=) 12.d4 (better 12.Rc1+-) 12...Nd4? (better 12...Nf5 13.Nb3 Bb7+-) 13.Qd4+- (13.Nd4?! Qa5 14.Qd2 Qc5=+) 13...Qa5 14.Nd2 Nf5 15.Qc4 Rd8 16.Rd1 Rb8 17.Be2 Nd4 18.Ncb3 (18.Bd3 Rd5 19.Nce4 Bb7+-) 18...Nb3 (18...Qe5!? 19.Nd4 Rd4+-) 19.ab3+- Bb7 (19...Qe5 20.0-0+-) 20.b4 (better 20.Qf4!?+-) 20...Qe5 21.0-0?? (better 21.f3+-) 21...Rd2=+ 22.Rd2 Qg5 23.Bg4 (better 23.g3!? Qd2 24.Rd1=+) 23...Qd2-/+ 24.Rd1 (24.Qc7 Qd8 25.Qf4 Bd5-/+) 24...Qg5 (24...Bd5 25.Rd2 Bc4 26.Rd4-/+) 25.h4 (25.Qc7 Rf8 26.Qb7 Qg4-/+) 25...Qe7 26.Qb5 Qc7 (26...Qf8 27.Qa4-/+) 27.Rd7 Qc1 28.Rd1 Qc6 29.Qf1 (29.Qc6 Bc6 30.Be2 Kf8-/+) 29...h6 30.Bf3 (30.b5 Qe4 31.f3 Qa4-/+) 30...Qb6-+ 31.Be2 (31.Bb7 Rb7 32.b5 Qb5 33.Rd8 Kh7 34.Qb5 Rb5-+) 31...Qb4 32.Rb1 Qd6 (32...Qh4?! 33.Bf3=) 33.Rd1 Qe7 34.Bb5 (34.h5 a5-+) 34...Rd8 (34...Qh4 35.Bd3-+) 35.Rc1 (35.Ra1 Qh4 36.Ra7 Bd5-+) 35...Rc8 (35...Qh4 36.Rc7 Rb8 37.Bd3-+) 36.Rb1 (36.Rc8 Bc8 37.Qc4 Bb7-+) 36...Bd5 (36...Qh4 37.Ba6 Ba6 38.Qa6-+) 37.Bd3 (37.Ra1 Qh4 38.Ra7 Qg5-+) 37...Qh4 38.Qc1 (38.Ra1-+) 38...Rc1 (38...Rc1 39.Rc1 g6-+) 0–1. Van Dam,N (1960) – Alienkin,A (2390), Nova Open Haarlem NED, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Qb6 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6 11.Nc3 Bd7 12.Ne4+- Qb4 (12...Qa5 13.Nd6 Kf8 14.Qf4+-) 13.Nd6 Ke7 14.Bb5?? (better 14.Qb4 Nb4 15.Rb1+-) 14...Qa4+= 15.Ba4 Nh6 16.0-0 (16.Bc6!? Bc6 17.Rc1+=) 16...Ne5=+ 17.Ne5 Ba4 18.Nb7 Rac8 (18...Rhc8 19.Rfc1=+) 19.Rfc1 (19.Rab1 Rc7=) 19...Nf5=+ 20.g4 (better 20.Rab1!? Rc2 21.Nc5 Rc1 22.Rc1=+) 20...Nd4-/+ 21.Rc8 Rc8 22.Nf7 Nf3 23.Kg2 Bc6 24.Nbd6 Rc7 25.Kg3 Bd5 26.Nb5? (better 26.Rd1-/+) 26...Rc5-+ 27.Nfd6 (27.Nbd6 Nd2 28.f4 g5-+) 27...Nd2 28.Re1 (28.Rd1 a6 29.Rd2 ab5 30.Nb5 Rb5-+) 28...a6 29.Nf5 Kd7 30.Nbd4 ef5 31.Nf5 Ne4 32.Kf4 (32.Kf3 Nd6 33.Ke3 Nf5 34.gf5 Kd6-+) 32...g6 33.Ne3 (33.f3 Nc3 34.Nd4 Na2-+) 33...Nf2 34.Re2 (34.Kg3 Ne4 35.Kf4 Bc6-+) 34...Nd3 (better 34...g5!? 35.Ke5 Bf3 36.Kd4 Be2 37.Kc5 Ng4 38.Ng4 Bg4 39.Kd4-+) 35.Kg3 Kc6 36.Nd5 Rd5 (36...Kd5 37.g5-+) 37.Re7 Rd7 38.Re6 Rd6 39.Re7 h6 40.Rh7 (40.h4 Nc5-+) 40...g5 41.h4 Nf4 42.hg5 hg5 43.Rg7 (43.Kf3 Kd5 44.Rf7 Kd4-+) 43...Rd5 (43...Rd3 44.Kf2 Ne6 45.Re7-+) 44.Rf7 a5 45.Kf3 Re5 46.Ra7 Kb5 47.Rf7 Kc4 (47...Nd5 48.Rf8-+) 48.Rb7 Ne6 49.Rb8 (49.Kf2 Nc5 50.Rb8 Re4-+) 49...Nd4 50.Kf2 Re2 51.Kg3 Ra2 0–1. Mock,Markus (2000) – Boehm,Thomas (2145), 29th Kiel Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Qb6 7.Bd3 Ne7 8.0-0 Bd7 9.Bc5 Qc5 10.c3 Nbc6 11.Re1 Ng6 13.g3 (13.Bg6 hg6 14.Qe4 dc3 15.Nc3 Ne7=) 13...Bc8 14.Bb5 Bd7 15.Bc6? (better is 15.a4=) 15...Bc6-/+ 16.Nd4? (better is 16.Ng5-/+) 16...Rd4-+ 17.cd4 Qd5 18.f3 Qd4 19.Kg2 (19.Qf2 Qa1 20.Nc3 Qb2 21.Qa7 0-0-+ (21...Qd2 22.Rd1 Qd1 23.Nd1+=; 21...Bf3?! 22.Qb8 Kd7 23.Qd6 Ke8 24.Qb8 Ke7 25.Qd6 Ke8 26.Qb8 Kd7 27.Qd6 Ke8=)) 19...Qa1 20.Nc3 Qb2 21.Rb1 Qc2 0–1. Kula,Dominik (1965) – Skara,Vladimir (2175), Frydek–Mistek CZE, Pobeskydi Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Ba3 Bb6 7.Bd3 Nc6 8.0-0 Nge7 9.Qe2 (9.Bd6 Bc7 10.Bc7 Qc7+-) 9...Ng6+= 10.Bg6 hg6 11.d3 Bc7 12.Nbd2 Qd5 Now all is on e5 13.Nc4 b6 (13...f6 14.Bd6 Bd6 15.Nd6 (worse 15.ed6 b5 16.Ncd2 Qd6=+) 15...Ke7 16.Rfe1+=) 14.Bd6 (14.h3 Ba6+=) 14...Bd8+= 15.a4 Ba6 16.Rab1 Na5 (16...f6 17.Nfd2+=) 17.Na3 (17.Na5 ba5 18.Qd2 Rc8+-) 17...Rc8 18.Nb5 Nc6 19.Ba3 (19.Qd2 f5+-) 19...Be7+= 20.Nd6 Bd6 21.Bd6 (21.ed6 f6+=) 21...f6 22.Rfe1 Kf7 23.Qd2 Rh5 24.Ra1 (24.Qf4 Rf5 25.Qg3 g5=) 24...Rhh8 (better 24...Kg8!?=+) 25.Bb8?? (better 25.Qf4 Rh5 26.Re2+=) 25...Qd8 (worse 25...Nb8 26.Qf4 f5 27.Nd4-+) ½–½. Matlakov,Maxim (2395) – Salgado Lopez,Ivan (2340), BELFORT World Youth Chess Championship. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Qd5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6 11.Nc3 Qa5 12.Qa5 Na5 13.Nb5 Ke7 14.Rc1 Bd7 15.d4 Bc6 16.Bd3 Nh6 17.Ke2 Rhd8 18.Rhd1 f6 19.h3 Nf7 20.Ke3 a6 21.Nc3 Rac8 22.Ne4 Bd5 23.Rc5 Rc5 24.Nc5 (worse is 24.dc5 f5 25.Nd6 Bf3 26.Kf3 Ne5 27.Ke2 Nd7 28.Nb7 Nb7-/+) 24...fe5 25.Ne5 Ne5 (worse is 25...Bg2 26.Rg1 Ne5 27.de5+=) 26.de5 Ba2 (worse is 26...Bg2 27.Rg1 Rd5 28.Rg2 Rc5 29.Rg7 Kf8 30.Rh7 Re5 31.Kf4+=) 27.Ra1 Nb3 28.Ra2 Nc5 29.Bh7 b5 30.Rc2 Rd5 31.f4 b4 32.Rb2 (32.Rc4 a5 33.Rd4-+) 32...a5-/+ 33.Bb1? (better is 33.Bc2-/+) 33...b3-+ 34.Rd2 (34.Be4 a4 35.Rb1-+ (35.Bd5?? ed5 36.Rb1 a3-+)) 34...a4 35.Re2 a3 36.Rf2 (36.g4 Rd1 37.f5 Rb1-+) 36...a2 (better is 36...Rd1!? 37.Ra2 Rd3 38.Ke2 ba2 39.Ba2-+) 37.Ba2 (37.Ra2 Rd3!! 38.Ke2 ba2 39.Ba2-+) 37...Rd3 (37...ba2?! 38.Ra2 Rd3 39.Ke2+=) 38.Ke2 ba2 39.Rf1 Ra3 40.Ra1 Nb3 (40...Nb3 41.Ra2 Ra2 42.Kf3 Nd4 43.Ke4 Nf5-+) 0–1. Osipenko,Pavel (2040) – Ortmann,D (2300), Lichtenberger Sommer, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Ba3 Nd7 7.Bb5 Qb6= 8.Qe2 Ne7 (8...a6 9.Bc5 Qc5 10.Bd7 Bd7 11.c3=) 9.0-0 (9.Qc4 Ba3 10.Na3 Nf5+-) 9...0-0 (9...a6 10.Bd3=) 10.Bd3 (10.Bc5 Qc5 11.c3 dc3 12.Nc3 a6 13.Bd7 Bd7=) 10...Ng6 (10...Nc6 11.Bc5 Qc5 12.Re1=) 11.Qe4 (11.Bg6!? fg6 12.Re1+=) 11...Rd8= 12.g3 (12.Qg4 Ba3 13.Na3 Nde5 14.Ne5 Ne5-/+) 12...Ba3 13.Na3 Nc5 14.Qe2 Nd3 15.Qd3 Qc5 16.Rfe1 a6 17.Nc4 b6 18.Rab1 (18.h4 Bb7 19.Ng5 Bd5=+) 18...Rb8 (18...Bb7 19.Nb6 Bf3 20.Qf3-/+) 19.c3=+ Bb7 20.Nd4 Qd5 21.f3 b5 22.Ne3 (better 22.Na5!? Ne5 23.Qe3 Nf3 24.Nf3 Qf3 25.Nb7 Qe3 26.Re3 Rb7 27.d4-/+) 22...Qf3!-+ (22...Ne5?! 23.Nd5 Nd3 24.Ne7 Kf8 25.Nec6 Ne1 26.Re1 Bc6 27.Nc6=+; 22...Qe5?! 23.f4 Qd6 24.f5=+; 22...Qa2 23.Ra1 Ne5 24.Qe2+= (24.Ra2? Nd3 25.Rb1 e5-+)) 23.Nf3 Rd3 24.Kf2 (24.Nd4 Rd2 25.a4 Ne5 26.ab5 Be4-+) 24...Bf3 25.Kf3 Rd2 26.a4 (26.Nd1 Rbd8 27.a4 R8d3 28.Ne3 Rc3 29.ab5 Ne5 30.Ke4 Rc5 31.ba6 f5 32.Nf5 ef5 33.Kf5 Nf3 34.Ke6 Nd4 35.Kd6 Rc6 36.Kd5 Ra6-+) 26...Ne5 27.Ke4 Ng6 (27...Nd3 28.Nf1 Nc5 29.Kf3 Rd3 30.Ke2 Rc3 31.ab5 ab5 32.Red1-+) 28.ab5 (28.Nf1 f5 29.Ke3-+) 28...f5 (28...Rb5?! 29.Rb5 ab5 30.Nf1 f5 31.Ke3-+; 28...ab5?! 29.Nf1 f5 30.Kf3-+) 29.Nf5 ef5 30.Ke3 Rbd8 (30...Rh2?! 31.ba6 Re8 32.Kd4 Rd2 33.Kc5-+) 31.Re2 R8d3 32.Kf2 ab5 33.Rb5 Re2 34.Ke2 Rc3 0–1. Tkhelidze,M (2150) – Mayers,D (2105), World Seniors, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Nd7 7.c3 dc3 8.dc3 Nh6 9.Bc5 Nc5 10.Qd8 Kd8 11.Na3 Ke7 12.Rd1 (12.Nb5 Bd7=) 12...Bd7 (12...Ne4 13.Bc4=) 13.Bb5 Rac8 14.Ke2 (14.c4 a6 15.Bd7 Nd7=+) 14...a6=+ 15.Bd7 (15.Bd3 Bc6=+) 15...Nd7-/+ 16.c4 Ng4 17.Rb1 Rc7 (17...Nde5?! 18.Rb7 Kf6 19.Nd2=) 18.Rb4 Nge5 19.Ne5 Ne5 20.Rhb1 Rb8 21.Ra4 (21.R4b3 Nd7-/+) 21...Rd8-+ 22.Rab4 Rdd7 23.f4? (better 23.h3-+) 23...Nd3 0–1. Los,Sander (2345) – Bosman,Michiel (2285), NED–chT, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Nd7 7.Bc5 Nc5 8.Na3 Ne7 9.Bb5 Kf8+=.

6.Ba3 Qe7 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6 11.Nc3 Nh6 12.Ne4 Qb4 13.Nd6 (13.Qb4 Nb4 14.Rb1 Nd5+-) 13...Ke7 14.Qb4 Nb4 15.Rb1 Nd5 16.Bc4 (16.Nc8 Rhc8 17.Rb7 Ke8+-) 16...Nb6 17.Bd3 ½–½. Buecker,Stefan (2345) – Schmittdiel,Eckhard (2485), GER–ch, 1991. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Na3 Nc6 7.Nc4 Nge7 8.Bd3 0-0 9.Bh7 (better 9.Ba3 Ba3 10.Na3=) 9...Kh7-/+ 10.Ng5 Kg6 11.Qg4 f5 12.ef6 (better 12.Qg3 f4 13.Qh4-/+) 12...Kf6?? (12...e5 13.Qh4 Nf5-+ (13...Rf6 14.Qh7 Kg5 15.d3 Rf4 16.Qg7 Ng6 17.Bf4 ef4 18.h4 Kf5 19.Qf7 Qf6 20.Qd5 Nge5 21.Qc5+=; 13...gf6?? 14.Qh7 Kg5 15.d3 Kg4 16.h3)) 13.Nh7 Kf7 14.Nf8 (14.Qh5 Kg8 15.Nf8 Qd5=) 14...Qf8 (better 14...Qd5!? 15.d3 Kf8-/+) 15.Qh5= Ng6 16.Qc5?? (better 16.0-0 Bb4 17.f4+=) 16...Qc5-+ 17.d3 Nce5 18.Ba3 Qc6 19.Nd6 Kg8 20.0-0 (20.0-0-0 Qg2 21.h4 Nf4-+) 20...Bd7 (20...Nf4 21.Ne4 Qc2 22.Bd6 Ne2 23.Kh1 Nd3 24.Be7-+) 21.Ne4 (21.f4 Nh4 22.Rf2 Ng4-+) 21...Nf4 (better 21...Qc2 22.Rfd1-+) 22.Rae1 (22.Bd6 Neg6 23.Bf4 Nf4-+) 22...Neg6 (better 22...Qc2!? 23.Nc5 Ned3 24.Nd3 Nd3 25.Ra1-+) 23.g3 (23.Rd1 Nh4-+) 23...Nd5 (23...Nh3!? 24.Kg2 e5 25.Bc1 Qc2 26.Rd1-+) 24.f4 Nf6 (better 24...Qc2 25.Rf2 Qd3 26.Bb2-+) 25.Ng5 (25.Nf6 gf6 26.Re2 Qd5-+) 25...Qd5 (25...Qc2 26.Bc1-+) 26.f5 (26.Bc1 Rc8 27.Rf2 Bc6-+) 26...Bc6 27.Re2 (27.Nf3 ef5 28.Bb2 Qa2 29.Bd4 Bf3 30.Rf3 Qd5 31.Bf6 Qf3-+) 27...ef5 28.Kf2 Ng4 29.Ke1 Ne3 30.Rf4 Qa2 (30...Qh1 31.Rf1 Qf1 32.Kd2 Qd1) 31.Bc5 Qb1 32.Kf2 Qf1 0-1. zsolti_83 (2410) - Macrofago (2505), Rated Bullet game, lichess.org, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Na3 Nc6 7.Nc4 Nh6 8.a4 0-0 9.Bd3 f6 10.0-0 Ng4 11.Ng5 f5 (11...Nce5? 12.Ne5 fg5 13.Qg4+-; 11...Nge5?? 12.Bh7 Kh8 13.Qh5+-) 12.f4 Nb4 (better 12...Nce5 13.Ne5 Ne5=) 13.Nh7?? (better 13.Ba3+=) 13...Nd3-+ (worse 13...Kh7 14.Qg4 Nc2 15.Rb1+=) 14.Nf8 Nc1 15.Qc1 d3 (15...Bf8?! 16.h3 Nh6 17.Qb2-/+; worse 15...Kf8 16.d3-/+; 15...Qf8?! 16.d3-/+) 16.Kh1?? (better 16.Ne3 Ne3 17.de3-/+) 16...Qh4 (16...Bf8?! 17.h3 Bc5 18.Qe1-/+; 16...Qf8?! 17.Qe1-/+; 16...Kf8?! 17.Ne3 Ne3 18.de3-/+) 17.h3 Qg3 (17...Kf8?! 18.Ne3 b6 19.Kg1 Ne3 20.de3 dc2 21.Ra2-+; 17...Bf8?! 18.Qe1 Qh5 19.cd3=) 18.hg4 Qh4 0-1. zsolti_83 (2465) - Geroniman (2435), Rated Blitz game, lichess.org, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Na3 Nh6 7.Nc4 0-0 8.a4 Nc6 9.Bd3 Bd7 (9...Nb4 10.Qe2=) 10.0-0 Qc7 (10...Nb4 11.Be4 Bc6 12.Bc6 Nc6 13.Ba3 Ba3 14.Ra3=) 11.Ba3 Ba3 12.Ra3 Rad8 (12...f6 13.Qe2+=) 13.Qa1 (13.c3 dc3 14.Rc3 f5+=) 13...b6 (13...Ng4 14.Qe1 f5 15.Rb3=) 14.Nd4 (14.c3!?+=) 14...Ne5= 15.Ne6 (15.Ne5 Qe5 16.Nf3 Qd6=) 15...Nf3=+ (worse 15...Be6 16.Qe5 Qd7 17.Ne3+=) 16.gf3 Be6 17.Qe5 Qe7 18.Re1 Rfe8 19.Rc3 Qh4 (19...Qf8 20.Qg5=) 20.Qg3 (20.Nd6 A) 20...Qa4?? 21.Bb5 (21.Ne8?! Qe8 22.Rc7 a5+-) 21...Qh4 22.Ne8+-; B) 20...Re7 21.Re4 Qf6 22.Qf6 gf6+=) 20...Qf6 (20...Qd4 21.Re4 Qd7 22.Ne5=) 21.Re5 (21.Nd6 Re7=) 21...Bc4 (21...Kh8 22.Ne3=) 22.Re8 Re8 23.Rc4 g6 24.Re4 Re6 (better 24...Qa1!? 25.Kg2 Re4 26.fe4 Qa4+=) 25.Qb8+/- Kg7 26.Qa7 1-0. zsolti_83 (2455) - Geroniman (2445), Rated Blitz game, lichess.org, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.a4 Ne7 7.Na3 0-0 8.Bd3 Nbc6 9.0-0 Ng6 10.Re1 Qc7 11.Nc4 b6 12.h4 (12.Bg6 fg6 13.Ba3 Ba6 14.Bc5 bc5=) 12...Bb7 13.Ng5 Be7 (13...Nb4 14.Bg6 hg6 15.Ba3-/+) 14.Ba3 (14.Nh7 Rfc8 15.Bg6 fg6+=) 14...h6 (14...Nh4 15.Bh7 Kh8 16.Be7 Qe7 17.Qh5 Qg5 18.Qg5 Nf3 19.gf3 Kh7 20.Nd6+-) 15.Ne6 fe6 16.Bg6 Ba6 17.Bd6 Bd6 18.ed6 (worse is 18.Nd6 Ne5 19.Re5 Qd6+=) 18...Qd8 19.Bd3 Qh4 20.Qe2 Bc8 (20...Rf6!? 21.g3 Qg5=) 21.Be4+= Bd7 22.Ra3 Rae8 23.Bg6 Rc8 24.Rg3 Qf6 25.f3 Nb4 26.Ne5 Ba4 27.d7 (27.c3 dc3 28.dc3 Rc3+/-) 27...Rcd8 (better is 27...Rc5!?-/+) 28.Qc4= a5 29.c3 b5 30.Qd4 Nc2 31.Bc2 Bc2 32.d3 Qf4 33.Rg4 Qf6 34.Rg6 (34.Nc6 Qd4 35.Rd4 a4+-) 34...Qe7+/- 35.Re4 Rf6?? (35...Kh7 36.Reg4 a4+-) 36.Nc6+- Qd7 (36...Rf7 37.Ne7 Re7+-) 37.Qf6 Bd3 38.Ne7 (38.Ne7 Qe7 39.Qe7 Rd7 40.Rg7 Kh8 41.Qf8) 1–0. Martorell Aubanell,Adria (2140) – Ribalta Bertran,Esteve (1780), Santa Eulalia de Roncana ESP, 7th Open, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bb5 Nc6 7.0-0 Nge7 8.Ba3 Qb6 9.Bc5 Qc5 10.Bc6 (10.Qe2 0-0=) 10...Nc6 11.Re1 Bd7 12.d3 Nb4 13.Na3 (13.Nd4 Qd4 14.c3 Qd3 15.cb4 Qg6=) 13...b5 (13...0-0 14.Nc4-/+) 14.Ng5=+ Nc6 15.Qf3 (15.Qh5 g6 16.Qf3 f5-/+) 15...Qa3 (better 15...f6 16.Ne6 A) 16...Qa3?? 17.ef6 gf6 18.Qf6 Be6 19.Qh8 (19.Re6?! Kd7 20.Rc6 Rhe8+-) 19...Qf8 20.Re6 Kd7 21.Qf6 Qf6 22.Rf6+-; B) 16...Be6 17.ef6 Kd7 18.fg7 B1) 18...Qa3 19.Re6 (19.gh8N?! Qf8 20.Qe4 Qg8+-) 19...Ke6 20.Re1 (20.gh8B?! Qc3 21.Qf6 Kd7+-; 20.gh8R?! Qc3 21.Qe2 Kd6 22.Ra8 Qa1 23.Qf1 Qa2+-; 20.gh8N?! Qc3 21.Qf7 Kd6+-) 20...Ne5 21.gh8R Rh8 22.Qg4 Kd6 23.Qd4 Kc6 24.Qe5+-; B2) 18...Rhg8 19.Re6 Ke6 20.Re1 Ne5-+) 16.Qf7= Kd8 17.Qg7 Qf8 18.Qh8 Qh8 19.Nf7 Kc7 20.Nh8 Rh8 21.f4 Rf8 22.g3 Kb6 (22...Nb4 23.a3 Nd5 24.Re4=) 23.Rab1 Ne7 24.Rb2 (24.a4 a5 25.ab5 Bb5=+) 24...Nd5=+ 25.Kf2 Kc5 26.Ke2 Bc6 27.Kd2 a5 28.a3 Nc3 29.Ra1 Bd5 30.Ke1 Bf3 31.Kd2 Rf5 (31...Na4 32.Rbb1=+) 32.Rf1 Bg4 33.Rb3 Bh3 34.Rf2 b4 35.Kc1 (35.ab4 ab4 36.Ke1 Rf8-+) 35...h5 (35...a4 36.ab4 Kb5 37.Rb2-/+) 36.Kd2 Rf7 37.ab4 (37.Ke1 Rb7 38.a4-+) 37...ab4-+ 38.Rc3? (better 38.Re2 Ne2 39.Ke2 Bg4 40.Kd2-+) 38...bc3 39.Kc1 Rb7 (39...h4 40.Rf3-+) 40.Re2 Rb2 (40...Bf5 41.Rg2-+) 41.Rf2? (41.Re1 Bg4 42.h3 Bh3 43.Rh1-+) 41...Kb4 42.f5 Bf5 43.Rf4 Kc5 44.h3 (44.Rf1 Kc6-+) 44...Bh3 45.Re4 (45.Rf8 Rb7 46.Rc8 Kd5-+) 45...Bf5 (45...Rb7!? 46.Rh4 Rf7 47.Kd1 Bg4 48.Ke1-+) 46.Re1 (46.Rh4 Bg4 47.Rh1 Kd5-+) 46...Kb4 (46...Kb4 47.Rf1 Ka3-+) 0–1. Bandt,Steffen – Ochtman,H (2210), Spring Festival, 2008. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.c3 Nc6 7.Qa4 Bd7=+ 8.Bb5 (8.Qb5 b6 9.Qe2 Nge7=+) 8...Rc8 (8...a6 9.Qc4 Ba7 10.Bc6 Bc6 11.Nd4-/+) 9.Ba3= Bb6 10.0-0 (worse 10.cd4 a6 11.d5 ab5-/+) 10...Nge7 11.cd4 (11.Rc1 Nf5=) 11...Nd4=+ 12.Nd4 Bd4 13.Nc3 Be5 14.d4 (better 14.Qa7!? Bb5 15.Nb5=) 14...Bh2!-+ (14...Rc3?! 15.de5 a6 16.Be7 Qe7 17.Qa5 Bb5 18.Qc3 Bf1 19.Qc8 Qd8 20.Qd8 Kd8 21.Kf1-/+) 15.Kh2 Rc3 16.Rac1 Rc1 17.Rc1 a6 18.Bd7 Qd7 19.Qb4 Rg8 (19...Nc6 20.Qb3-+) 20.Qb6-/+ Nd5 21.Qb1 (21.Qa7 f6-/+) 21...f5 22.g4 (22.Qd3 Kf7-+) 22...g6 23.g5 h6! 24.gh6 Rh8 25.Qb3 (25.Qc2 Rh6 26.Kg1 Qd8-+) 25...Rh6 26.Kg1 Kf7 (26...Rh4 27.Qc4-+) 27.Qg3 Rh8 28.Kg2 (28.Bd6 g5! 29.Be5 Rh4-+) 28...Rc8 (28...g5 29.Qe5 Rh4 30.f3-+) 29.Rh1 Nf6 30.Bd6 (30.Bc5 b6! 31.Bd6 Rc2-+) 30...Qc6 31.f3 (31.Kg1-+) 31...Nh5 32.Qe5 (32.Qh2 f4! 33.Bc5-+) 32...Qc2 33.Kh3 (33.Kf1 Qd3 34.Qe2 Rc1 35.Kf2 Rc2 36.Qc2 Qc2 37.Kg1 Qb1 38.Kg2 Qa2 39.Kg1 Qb1 40.Kg2 Qb2 41.Kf1 Qd4-+) 33...Nf4! 34.Kh4 (34.Qf4 Rh8 Decoy) 34...Qg2 (34...Qg2 35.Qg7 Kg7 36.Be5 Kf7 37.Bf6 g5 38.Bg5 Qf2) 0–1. Kovar,V (2160) – Dobrowolski,P (2360), Telecom Open, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Bc4 Ne7 7.0-0 Nbc6 8.d3 0-0 9.Bf4 (9.Nbd2 Qc7=) 9...Na5 (9...Nd5 10.Bd5 ed5 11.Nbd2-/+) 10.Bb3 (10.Nbd2 Nd5 11.Bd5 ed5=) 10...Nb3 11.ab3 Bd7 12.Bc1 (12.Nbd2 Ng6 13.Ne4 Qc7=) 12...Bc6 (12...Qc7 13.Nbd2=+) 13.Nbd2 (13.Bb2 f5=+) 13...Nf5 (13...Qc7 14.Re1=+) 14.Bb2 (14.Ne4 Be7=) 14...a6 (14...a5 15.Ne4 b6 16.Qe2=) 15.Ne4 Ba7 (15...Bb6 16.Ba3 Re8 17.Qe2=) 16.Qe2 Rc8 17.Rac1 (17.Ba3 Re8=) 17...Qd7 (17...Qd5 18.Ba3 Rfe8 19.g4=) 18.Rfd1 (18.Ba3 Rfd8=) 18...Rfd8= 19.h3 (19.g4 Ne7 20.Nd6=) 19...Ne7 (better 19...Qd5!?=) 20.Nd6+= Rb8 (20...Nf5 21.Nc8 Rc8+-) 21.Ng5?? (better 21.Nd4 Bc5 22.Qg4+-) 21...h6= 22.Nge4 (22.Qh5 hg5 23.Qf7 Kh7 24.Qh5 Kg8 25.Qf7 Kh7 26.Qh5 Kg8 27.Qf7=) 22...Ng6 23.Qg4 (23.f4 Nf4 24.Qf2 Ng6 25.Bd4 Bd4 26.Qd4 Be4 27.Qe4 Ne5 28.Nb7 Qb7 29.Qe5 Qb6 30.Kh1 Rbc8=+) 23...Qe7 (23...Be4 24.Ne4 (24.de4?? Ne5 25.Qg3 Qd6-+; worse 24.Qe4 Ne5 25.Nb7 Rb7 26.Qe5 Rb5=+) 24...Rbc8 25.Re1=) 24.f4 Be4 25.Ne4 Qh4 (25...Bb6 26.Ra1=) 26.Qh4+= Nh4 27.g4 Ng6 (27...Rbc8 28.Kf2+=) 28.Rf1+= Bb6 (28...Ne7 29.Rf2+=) 29.Ba3 (29.Ra1 Rbc8 30.Rf2 Rd5+=) 29...Bc7 (29...Rd5 30.Kg2=) 30.Kg2 (30.h4 Rd5 31.h5 Nf8+=) 30...Rd5 (30...f6 31.ef6 Nf4 32.Kh1=) 31.Kg3 (31.Kf3+=) 31...Rc8 (31...Bd8 32.Kf3+=) 32.h4 (32.c4 dc3 33.Rc3 Ne5+-) 32...Nf8 (32...Bd8 33.h5 Ne7 34.Rh1+=) 33.Nd6 (better 33.c4!? Ra5 34.Bb2+-) 33...Bd6= 34.Bd6 Nd7 35.Ba3 (35.Rf2 f6=) 35...Ra5 36.Bb2 (36.Bb4 Ra2 37.Rf2 a5=) 36...Ra2 37.Bd4 Rac2 38.Rc2 Rc2 39.Rd1 (39.Kf3 Nc5 40.Bc5 Rc5=) 39...Nb8=+ 40.Bf2 (40.Ba1!?=+) 40...Rc3 (40...Nc6 41.Kf3-/+) 41.Kg2 (41.Kf3 Nc6-/+) 41...Rb3 42.d4 (42.Kf3 Nc6-/+) 42...Rb5 (42...Nc6 43.f5-+) 43.f5 (43.Kf3 Nc6-/+) 43...Nc6 44.Kf3 Kf8 (44...a5 45.Ra1-/+) 45.Ke4 Rd5 (45...a5 46.Be3-/+) 46.Rb1=+ Rd7 47.h5 (47.Be3 a5=+) 47...Ke8 (47...a5 48.Ra1=+) 48.Rd1 (48.Be3 a5=+) 48...Rd5 (48...a5 49.Ra1=+) 49.Rc1 (49.Ra1 a5=+) 49...Kd7 (better 49...a5-/+) 50.Rc5? (50.Be3 a5 51.Rf1 Ke7=+) 50...Nb4 (50...Rc5!? 51.dc5 ef5 52.gf5-/+) 51.Rd5 (better 51.Be3!?=+) 51...Nd5-/+ 52.Bh4 White prepares f6 (52.f6 g5 53.hg6 fg6-+) 52...Ke8 (52...a5 53.g5 a4 54.fe6 fe6 55.gh6 gh6 56.Kd3 Nf4 57.Kc3 Nh5 58.d5-+) 53.f6 (53.Be1 b5-/+) 53...Kf8 (53...gf6!? 54.ef6 a5 55.Kd3-+) 54.g5 (54.fg7 Kg7 55.Be1 b5-/+) 54...hg5 55.Bg5 (better 55.fg7!? Kg7 56.Bg5-/+) 55...gf6-+ 56.ef6 Kg8 (56...a5 57.Kd3-+) 57.Ke5 (57.Kd3 a5-+) 57...a5-+ 58.Kd6?? (better 58.Ke4-+) 58...a4 59.Bc1 (59.Kc5 a3 60.Bc1 a2-+) 59...b5 60.Kc5 (60.Kc6 b4-+) 60...b4 61.Kc4 (61.Kb5 a3 62.Kc4 Nf6 63.Kb4 a2-+) 61...b3 62.Kb5 (62.Ba3 Kh7-+) 62...Nc3 (62...Nf6?! 63.Ka4 Nh5 64.Kb3=+) 63.Kc4 (63.Ka5 Kh7-+) 63...Nd1 64.Kb4 b2 65.Bb2 Nb2 66.Ka3 Nd3 67.Ka4 Nf4 68.Kb5 Nh5 69.Kc6 (69.d5 ed5 70.Kc5 Nf6 71.Kd4-+) 69...Nf6 70.Kd6 Nd5 71.Ke5 Kg7 72.Ke4 Kf6 73.Kf3 Kf5 74.Kf2 Ke4 75.Kf1 (75.Ke2 Kd4 76.Kd2 e5 77.Kc2 e4 78.Kc1 e3 79.Kb2 e2 80.Ka2 e1Q 81.Kb2 Qd1 82.Ka2 Kc3 83.Ka3 Qb3) 75...Kd4 76.Kf2 (76.Ke2 e5 77.Ke1 Kc4 78.Ke2 e4 79.Kd2 e3 80.Kc2 Kd4 81.Kb2 e2 82.Kc2 e1Q 83.Kb3 Qd2 84.Ka3 Kc4 85.Ka4 Qb4) 76...e5 77.Kf1 e4 78.Ke2 (78.Kf2 Kd3 79.Ke1 e3 80.Kd1 f5 81.Ke1 e2 82.Kf2 Kd2 83.Kg3 e1Q 84.Kf3 Qe3 85.Kg2 Nf4 86.Kh1 Qh3 87.Kg1 Qg2) 78...e3 79.Ke1 (79.Kd1 Kd3 80.Ke1 e2 81.Kf2 Kd2 82.Kg3 e1Q 83.Kg4 Qe4 84.Kh5 Kd3 85.Kg5 Qf4 86.Kh5 Nf6) 79...Kd3 80.Kf1 (80.Kd1 f5 81.Ke1 e2 82.Kf2 Kd2 83.Kg2 e1Q 84.Kf3 Qe3 85.Kg2 Nf4 86.Kh1 Qh3 87.Kg1 Qg2) 80...Kd2 81.Kg2 (81.Kg1 e2 82.Kg2 e1Q 83.Kh3 Ne3 84.Kh2 Qh4 85.Kg1 Qe4 86.Kf2 Qg2) 81...e2 82.Kg3 (82.Kf3 e1Q 83.Kg4 Qe4 84.Kg3 Ne3 85.Kh3 Qg4 86.Kh2 Qg2) 82...e1Q 83.Kg4 (83.Kf3 f5 84.Kg2 Nf4 85.Kh2 Qf2 86.Kh1 Qg2) 83...Qf2 (83...Qe4 84.Kh3 Ne3 85.Kg3 Qg4 86.Kf2 Qg2) 84.Kh3 Qg1 85.Kh4 Qg2 86.Kh5 Nf6 87.Kh4 Qg4 0–1. Pingin,Artem – Vetokhin,Savva, World Cadets Championship – Open U8, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Bc4 Ne7 7.d3 Bd7 8.Nbd2 b5 9.Bb3 Bc6 10.Qe2 Bb4 11.0-0 Bc3 12.Rb1 0-0 13.Ne4 Be4 14.Qe4 Na6 15.Bg5 Nc5 16.Qh4 Re8 17.Qh5 Qd7 18.h4 Nf5 19.Qg4 a5 20.a3 a4 21.Ba2 Reb8 Black prepares b4 22.Nh2? (better is 22.Nd2!?=) 22...b4-/+ 23.ab4 Bb4 24.Qf3 Qb7?? (24...Bc3 25.h5 h6 26.Bc1-/+) 25.Qh3 (25.g4 h6 26.gf5 hg5+=) 25...h6 (25...h5 26.g4 hg4 27.Ng4+=) 26.Bf4? (better is 26.g4 hg5 27.gf5 gh4 28.Nf3=) 26...a3-/+ 27.g4 Ne7 28.Rfd1 (28.Nf3 Qd7 29.g5 h5-+) 28...Na4 29.Bd2 Nc6 30.Qf3 (30.g5 Nb2 31.gh6 Nd1-+) 30...Qc8 31.Nf1 Bd2 (worse is 31...Ne5 32.Qg3 Nc6 33.Qh2-+) 32.Rd2 (32.Nd2 Nc3 33.Rb8 Rb8 34.Ra1 Ne5 35.Qg2-+) 32...Rb1 (32...Rb1 33.Bb1 Nc3-+) 0–1. Maher,Conor (1945) – He,Ben (1700), Glorney Cup, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Bd3 Bd7 7.0-0 Bc6 8.Ba3 Qa5 9.Bc5 Qc5 10.c3 Bf3 11.Qf3 Nc6 (11...Qe5?? 12.Qb7 Qd5 13.Be4 Qb7 14.Bb7+-) 12.cd4 Qd4 13.Nc3 Nge7 14.Nb5 Qe5 15.Rfe1 Qb8 16.Qh5 (16.Rac1 0-0=+) 16...a6-/+ 17.Nc3 0-1. Bernadskiy,V (2625) - Rublevsky,S (2650), TCh-SRB Premier, 2020.

6.Bd3 Bd7 7.Ba3 Qa5 8.Bc5 Qc5 9.0-0 Ne7 10.Re1 Bc6 11.c3 (11.Ng5 h5=) 11...Bf3 12.Qf3 (worse 12.gf3 Nbc6 13.f4 Rd8=+) 12...Nbc6 13.Qg3 0-0 (13...Ng6 14.Be4=) 14.cd4 (14.Qh3 h6 15.Qg3 Rfd8=+) 14...Qd4=+ 15.Nc3 Rfd8 (15...Rad8 16.Be4=+) 16.Be4 Ng6 e5 draws heavy fire (16...Qd2 17.Rad1 Qh6 18.Rd6=+) 17.Bg6= hg6 18.Rad1 (18.Re2 Qd3=) 18...Ne7 (18...Qd3 19.Re3 Qc2 20.Ree1=+) 19.Qf3 (19.Nb5 Qd7 20.Nd6 Nf5 21.Nf5 gf5=) 19...b6 (19...Nc6 20.Re4 Qd3 21.Re3=) 20.Re4 (20.a3 Rac8=) 20...Qd3 21.Re3 Qc2 Attacking the backward pawn on d2 22.d4 Rac8 23.Red3 Nc6 Exerts pressure on the backward pawn 24.R1d2 (24.h3 Nb4 25.Re3 Na2 26.Na2 Qa2=) 24...Qc1 25.Rd1 Qc2 26.R1d2 Qc1 27.Rd1 Qc2 28.R3d2 (better 28.h3=) 28...Nd4-/+ 29.Rd4 Rd4 30.Rd4 Qc3 (30...Rc3!? 31.Qd1 Qd1 32.Rd1 Rc5-/+) 31.Qc3=+ Rc3 32.h3 (32.Rd8 Kh7 33.h3 g5-/+) 32...Rc1 (32...Kf8 33.Rd8 Ke7 34.Rb8=+) 33.Kh2=+ Rc2 (33...g5 34.Rd8 Kh7 35.Rd7=+) 34.Rd8 Kh7 35.Rd7 Ra2 (35...Rf2 36.Ra7 g5 37.Kg3=+) 36.Rf7 a5 (36...g5 37.Re7=+) 37.Kg3 b5 (37...Re2 38.Rb7=+) 38.Rb7 (38.Re7!?=) 38...Rb2 1–0. Demarcke,Dirk (2220) – Medghoul,Sherif (2130), Nationale II, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

6.Ba3 Qa5

7.Qc1 Nc6= 8.Qb2 Nge7 9.Bb5 Ba3 10.Na3 0-0 11.Nc4 Qc7 12.0-0 Rd8 13.a4 a6 (13...b6 14.Ra3=) 14.Bc6+= Nc6 15.Qb6 White plans a5 15...Qe7 16.a5 Rb8 17.Rab1 Bd7 18.Rb3 Be8 19.Rfb1 h6 20.Ne1 Qh4 21.Rg3 (21.Nd3 Ne7+=) 21...Ne7 (21...Qe4!?=) 22.Nf3 Qf4 23.d3 (23.h3 Qe4+=) 23...Bc6 24.Nd6 Attacking the backward pawn on b7 24...Nf5 25.Nf5 ef5 26.Re1 Bf3 27.Rf3 Qd2 28.Rf1 Qc2 29.e6 fe6 (29...Rd5!? 30.ef7 Kf7-/+) 30.Qe6= Kh8 31.Qf5 Qc3 32.Qg6 (32.Rg3!?=) 32...Qa5-/+ 33.Rf7 Qg5 (better 33...Qe5!?-/+) 34.Rg7= Qg6 35.Rg6 Kh7 36.Rb6 Rd7 37.Rfb1 a5 38.Kf1 a4 39.Ra1 Ra8 40.Rb4 a3 41.Rb3 Rc7 42.Rba3 Ra3 43.Ra3 Kg6 44.Ke2 Kf5? (better 44...Re7!? 45.Kf3 Rf7 46.Kg3 b5+/-) 45.Ra5+- Ke6 46.Rb5 (46.Rh5 Re7 47.Kf3 Kd6 48.Rh6 Kc5+-) 46...Kd6 (46...Rc2 47.Kf3 Rd2 48.g4 Rd3 49.Ke4+/-) 47.Rh5 (47.Rb6!? Kd5+-) 47...Re7+/- 48.Kd2 Re6 49.g4 Kc6 50.f4 b5 51.f5 Rf6 52.Rh3 Kd5 53.Rf3 Ke5 54.h4 Ra6 (54...Rf8 55.Kc2+-) 55.g5 hg5 56.hg5 Ra2 57.Kc1 Rg2 (57...Ra7+-) 58.f6 (58.f6 Rg1 59.Kb2 Rg5 60.f7+-) 1-0. Greet,A (2415) - Chow,S (2345), English Online Blitz Gp1 blitz, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.Bc5 Qc5 8.Bd3 Nc6-/+ 9.0-0 Ne5 10.Ne5 Qe5 11.Na3 (11.Re1 Qf6=+) 11...Ne7 (11...Nf6 12.Re1 Qc5 13.Nc4-/+) 12.Re1 Qc5 13.Nc4 f6 14.Rb1 0-0 15.a4 Qc7 16.Qh5 g6 17.Qh6 (17.Qe2 Rb8=+) 17...e5-/+ 18.h4? (better 18.Na3 Be6 19.Be4-/+) 18...Bf5-+ (18...Bf5 19.Rbc1 Bd3 20.cd3 Qb8 21.Ne5 fe5-+) 0–1. Murie,Eric (1920) – Berkes,Ferenc (2345), Agneaux St Lo op, 1999.

7.Bc5 Qc5 8.Bd3 Nc6 9.0-0 Nge7 10.Re1 Ng6 Can e5 get defended? 11.Bg6 hg6 12.c3 Bd7 13.Re4 d3 14.Qb3 (14.Qf1 Rh5=) 14...Rh5 (14...Na5 15.Qb4 Qb4 16.Rb4=) 15.Na3 (15.Qb7 Rd8=) 15...Na5= 16.Qb4 Qb4 17.cb4 (17.Rb4 Bc6 18.Nb5 Ke7=) 17...Bc6 18.Re3 Bf3 19.ba5 Bc6 (19...Bd5 20.g4 Rh4 21.f3=) 20.Rc1 a6 (20...0-0-0 21.a6 Kb8 22.ab7 Bb7 23.Rb1+=) 21.Nc4+= Rd8 22.Nd6 (22.Rc3 Ke7=) 22...Ke7 (22...Rd6 23.ed6 Ra5 24.Rd3 Ra2 25.f3=+) 23.f4 (23.Rd3 Re5 24.Nf7 Rc5 25.Rc5 Rd3=+) 23...g5 24.Rc4 (better 24.f5!?=) 24...gf4=+ 25.Rf4 Re5 (25...f6!? 26.Nc4 Rg5-/+) 26.Re5= Rd6 (worse 26...Kd6 27.Rg5 Ke7 28.Rg7+-) 27.Kf2 (27.Rg5 Kf8=) 27...f6 28.Rc5 e5 29.Rb4 (29.Rg4 Kf7=) 29...Ke6 (29...Rd8 30.h4=) 30.g3 f5 Black plans e4 31.h4 Rd8 32.Rb6 (32.Rb3 Rd4=) 32...Kd6 (32...Rd4 33.Rb3=+) 33.Rc3 (33.Rc1 e4=) 33...e4=+ 34.Ke3 (34.Rb4 Rg8=+) 34...Re8 ½–½. Carrascoso Morales,A (2260) – Mingarro Carceller,S (2065), Almansa ESP, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

7.Bc5 Qc5 8.Bd3 Nc6 9.Qe2 Nge7 (better 9...Qb4 10.0-0 Qb2-+) 10.0-0= Bd7 11.Re1 Rd8 12.a4 Nb4 13.Na3 (13.Be4 Bc6 (13...Nc2? 14.Rc1+-) 14.c3 d3 15.cb4 de2 16.bc5 Be4 17.Re2 Bf3 18.gf3 Rc8=) 13...Nd3 (13...Ba4!? 14.Reb1 Rd7=+) 14.cd3= Bc6 15.Rec1 Qd5 16.Rc4 0-0 17.Rd4 (17.Nc2!?+=) 17...Qb3=+ Exerts pressure on the isolated pawn 18.Rd8 Rd8 19.Nc4 Qd3 (worse 19...Ba4 20.Na5 Qb5 21.Nb7 Qb7 22.Ra4 Qb1 23.Qf1+=) 20.Qd3 Rd3 21.Rc1 (21.a5 Bd5 22.Rc1 Nc6=+) 21...h6 22.a5 g5 (22...Ng6 23.Kf1-/+) 23.Ne1=+ Rd5 24.Nc2 Rc5 (24...Bb5 25.N2e3 Bc4 26.Nc4-/+) 25.d3 (25.N2e3 Bd5 26.d4 Rc6=) 25...Ng6 (25...Bb5!?-/+) 26.N2e3=+ Bd5 (better 26...Nf4 27.Rd1 Ba4=+) 27.Rb1? (27.d4 Rc7 28.Rc2= (28.Nd5?? ed5 29.Kf1 b5-+)) 27...Bc4-/+ 28.Nc4 Ne5 29.Ne5 Re5 30.g3 (30.Ra1 Rd5-+) 30...Ra5 31.Rb7 Kg7 32.Kg2 Ra2 33.Kf3 Kg6 34.h3 h5 (34...a5 35.d4-+) 35.Rb8 g4! 36.hg4 hg4 37.Ke3 (37.Kg4 Rf2 38.Rg8 Kf6-+) 37...a5-+ 38.Rg8 Kf5 39.Rg7 f6 40.f3 gf3 41.g4 Ke5 42.Rd7 Ra3 43.Kf3 Ra4 44.Ra7 Ra1 (44...Kd4 45.Rf7 Kd3 46.Rf6-/+) 45.Ke3 Ra3 46.Ra8 Ra4 (46...Kd6 47.Ke4-+) 47.d4-/+ Kd6 48.Kd3 (48.Rd8 Ke7 49.Ra8 Ra1-/+) 48...Ra1 (48...e5!? 49.de5 Ke5 50.Rg8-+) 49.Kc4-/+ Ra4 50.Kd3 Ke7 (50...e5 51.de5 Ke5 52.Ra6-+) 51.Ra7-/+ Ke8 52.Kc3 Ra1 53.Kb2 Ra4 54.Kc3 Ra1 55.Kb2 Rg1 56.Ra5 Rg4 57.Kc3 Rg7 58.Kd3 Rb7 59.Rh5 Rb1 60.Rh7 Kf8 61.Ra7 Rb5 62.Ke4 Rd5 63.Rh7 Rg5 64.Ra7 Rg4 65.Ke3 Rg7 66.Ra6 Re7 67.Ke4 Kf7 68.Ra8 Rd7 69.Ra5 Kg6 70.Ra1 f5 71.Ke3 Kf6 72.Ra6 Rd5 73.Rb6 Ra5 74.Kf4 Ra4 75.Ke3 Ra3 76.Ke2 Ke7 77.Rc6 Rh3 78.Ra6 Kd7 79.Rb6 Rg3 80.Ra6 Rb3 81.d5 (81.Ra5 Kd6-/+) 81...e5 82.Rf6 f4 83.Re6 Re3 84.Kf2 Kd8 85.Kf1 (85.Kg2 Kc7-/+) 85...Kc7 86.Kf2 Kd7 87.Kf1 e4 (87...Re4!?-/+) 88.Kf2= Kd8 89.Rf6 Rf3 90.Ke2 Kc7 91.Re6 (91.Rc6!? Kd7 92.Re6=) 91...Re3=+ 92.Kf2 Kd7 93.Rf6 Rf3 94.Ke2 Re3 95.Kf2 Rd3 96.Rf4 Rd5 97.Re4 ½–½. Van Onzen,Jeroen (2100) – De Verdier,Michael (2295), 15th South Wales International, 2018.

7.Qe2 Nc6 8.Qb5 Qb5 (worse 8...Ba3 9.Qa5 Na5 10.Na3+/-) 9.Bb5 Ba3 (9...Bb6!?+=) 10.Na3+/- Bd7 11.Nc4 Ke7 (11...Nge7 12.Nd6 Kf8 13.Nb7 Ne5 14.Nd4 Bb5 15.Nb5+=) 12.Bc6 Bc6 13.Nd4 Nh6 14.Nc6 bc6 15.Ke2 Rab8 16.Rhb1 Nf5 17.c3 Rhd8 18.Rb3 Rb3 (18...Nh4 19.g3 Ng6 20.d4+-) 19.ab3 Rd7 20.Ra6 Rc7 21.g4 Nh6 22.h3 f6 23.Ke3 Nf7 24.f4 Kd7 25.b4 h6 26.Kd4 Rb7 27.h4 Rc7 28.Ke4 Ke7 29.d4 Kd7 30.Na5 Nd8 31.Nb3 1-0. Zakarian,D (2305) - Miller,Dominic (2130), 4NCL Online Div1, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.Qe2 Bd7 8.Bc5 Qc5 9.Qc4 Qc4 10.Bc4 Nc6 11.c3 dc3 12.Nc3 Nge7 13.Rb1 Rb8 14.Ne4 (14.Nb5 Nc8+=) 14...0-0 15.Nc5 (15.Rf1 Na5 16.Bb5 Bc6 17.Bc6 Nac6=) 15...Rfd8= 16.0-0 (16.Ke2 b6 17.Nd7 Rd7=) 16...Na5 17.Be2 (17.Nd7 Rd7 18.Bb5 Rc7=) 17...Bc6=+ 18.d3 (18.Rfd1 Rbc8 19.Nb3 Nb3 20.ab3 Bd5=+) 18...Nd5 19.Rfc1 Nf4 20.Kf1 Bd5 21.Rb2 (21.a4 Ng6=+) 21...Bf3 (21...Nc6 22.Rb7 Rb7 23.Nb7-/+) 22.Bf3= Pawn b7, live or die! (worse 22.gf3 f6-/+) 22...b6 23.g3 Nd3 24.Nd3 Rd3 25.Ke2 (25.Rbc2 Rbd8 26.Rc8 Rd2=) 25...Rd7 26.Rbc2 Kf8 27.Rc8 Rc8 28.Rc8 Ke7 29.Be4 h5 (29...h6 30.f4=+) 30.Bd3 (30.f4 b5=) 30...Rd8 (30...f6 31.ef6 Kf6 32.Rf8 Ke7 33.Rc8=+) 31.Rc7= Rd7 32.Rc8 Rd8 (32...f6 33.ef6 Kf6 34.f4=+) 33.Rc7= Rd7 34.Rc8 ½-½. Zakarian,D (2305) - Redmond,J (2215), 4NCL Online S3 Div1, 2021.

7.Qe2 Bd7 8.Bc5 Qc5 9.Qc4 Qc4 10.Bc4 Nc6 11.c3 Rc8=.

7.Qe2 Bd7 8.Bc5 Qc5 9.Qc4 Qc4 10.Bc4 Nc6 11.d3 Nge7 12.Kd1 a6 13.a4 h5 14.Nbd2 h4 15.Nb3 (15.Rb1 Ng6 16.Re1 Ra7=) 15...Ng6 16.Re1 (worse 16.Nfd4 Nge5 17.Re1 Nc4 18.dc4 0-0-0-/+) 16...Rh5 e5 becomes the focus of attention 17.Nbd4 Nge5 18.Ne5 Re5 19.Nf3 Rh5 20.h3 Na5 21.Bb3 (21.Ne5 Rc8=+) 21...Bc6-/+ 22.Kd2 Bf3 23.gf3 Rf5 24.Re3 Nb3 25.cb3 Rc8 26.Rc1 Rc1 27.Kc1 Rg5 28.Re4 Rg2 29.Rh4 Rf2 30.Rf4 a5 31.h4 f6 32.b4 e5 33.Rc4 (33.Rg4!? Rf3 34.Rg7=) 33...Rf3-/+ 34.Kd2 Rf2 35.Ke3 (better 35.Ke1 Rf4 36.Rf4 ef4 37.ba5-/+) 35...Ra2 (better 35...Rf4 36.Rc8 Kd7-+) 36.ba5= Kf7 37.Rc7 (37.h5!?=) 37...Kg6=+ 38.h5 (38.Rc4!?=+) 38...Kh5-/+ 39.Rb7 Ra4 40.Rg7 Ra5 41.Rg1 Ra4 42.Rg2 Rg4 43.Rf2 Kg6 44.Rf1 Rg3 45.Ke4 Rg4 46.Ke3 Rh4 47.Rg1 Kf5 48.Rf1 Ke6 49.Ra1 Rh3 50.Ke2 Kf5 51.Rf1 Kg5 52.Rg1 Kf5 53.Rf1 Ke6 54.Ra1 Rg3 55.Rb1 Rg4 56.Ke3 Rd4 57.Rf1 Ra4 58.Rf2 f5 59.Rh2 f4 60.Kf3 Ra1 61.Rh8 Rd1 62.Ke2 Ra1 63.Kf3 Re1 64.Re8? (better 64.Rd8-+) 64...Kd7 65.Rh8 Re3 66.Kg4 Rd3 67.Kf5 Re3 68.Ra8 f3 69.Kg4 e4 70.Kg3 Re2 71.Ra1 Ke6 72.Rf1 (72.Ra6 Kd5 73.Ra1 f2-+) 72...Ke5 73.Rd1 (73.Rg1 Rg2! 74.Rg2 fg2 75.Kg2-+) 73...Rg2 74.Kh3 Rg8 75.Rd7 f2 76.Rf7 e3 77.Rf3 Ke4 (77...e2 78.Re3 Kf4 79.Re4 Ke4 80.Kh4 e1Q 81.Kh3 Qh1) 78.Rf7 (78.Rf6 e2 79.Kh2 e1Q 80.Re6 Kf5 81.Rf6 Kf6 82.Kh3 Qh1) 78...e2 79.Rf2 (79.Re7 Kd5 80.Rd7 Kc6 81.Rd6 Kd6 82.Kh2 e1N 83.Kh3 f1Q 84.Kh4 Qh1) 79...e1Q 80.Rf4 Kf4 81.Kh2 Qh4 0-1. Zakarian,D (2305) - Harvey,Marcus R (2440), English Online Blitz Gp1 blitz, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.Qe2 Bd7= 8.Bc5 Qc5 9.Qe4 Nc6 10.c3 Nge7 11.Nd4 (11.cd4?? Qc1 12.Ke2 Qb2-+) 11...Nd4 12.Qd4 (12.cd4?? Qc1 13.Ke2 Bb5 14.Kf3 Bf1-+) 12...Qd4 13.cd4 Nc6 14.Nc3 Nd4 15.Bd3 Bc6 16.0-0 (16.Rg1 f6=) 16...Rd8=+ 17.Be4 Ne2 18.Kh1 (18.Ne2 Be4 19.Nc3 Bd3=+) 18...Nc3 (18...Rd2!? 19.Bc6 bc6-/+) 19.Bc6=+ bc6 20.dc3 0-0 21.Rfd1 Rd5 22.Rd5 (22.f4 Rb8=) 22...cd5=+ 23.g3 Rb8 24.Rd1 g5 25.Rd2 Rb1 26.Kg2 Rc1 27.Rd3 Rc2 28.a4 g4 29.Rd4 h5 (29...Rc3?! 30.Rg4 Kf8 31.Rb4=) 30.h3 (30.Rb4 Kg7=+) 30...gh3 31.Kh3 Rc3 32.Kg2 Kg7 33.Kf1 Kg6 34.Ke2 Ra3 (34...Rc4 35.Rc4 dc4 36.Ke3-+) 35.Rf4-/+ Rc3 36.Kd2 (36.Rd4 Rc4 37.Rc4 dc4 38.Ke3-+) 36...Rc7 37.Kd3 f6?? (better 37...Rc1-/+) 38.Rf6+- Kg5 39.Re6 Kf5 40.Rh6 Ke5 41.Rh5 (41.f4 Kf5 42.Rh5 Ke6 43.Rh6 Kf5+-) 41...Ke6 (41...Kd6 42.Rh6 Kc5 43.Ra6+-) 42.f4 Rc4 (42...a5 43.Rh6 Kf5 44.Rd6+-) 43.Rh6 Kf5 44.Rd6 (44.a5!? Rc5 45.Ra6 Rc7+-) 44...Ra4+- 45.Rd5 Kf6 (45...Ke6 46.Re5 Kd6 47.Rg5+-) 46.Ke3+- Ra3 47.Rd3 Ra1 48.g4 a5 49.Rd6 Kf7 50.Ke4 Rb1 (50...a4 51.g5+-) 51.g5 Rb5 (51...a4 52.Ra6 Rb4 53.Kf5 Rb5 54.Kg4+-) 52.Rd5 (52.f5 Rb7+-) 52...Rb4 53.Kf5 a4 54.Ra5 Kf8 55.g6 Kg7 56.Kg5 1–0. Myhrvold,R (2240) – Grover,Sigurd Loe (1815), Oslo Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Bc5 Qc5

8.c3 Nc6 9.cd4 Nd4

10.Qa4 Nc6

11.Nc3 Qa5 12.Qa5 Na5 13.Nb5 Ke7 14.Nc7 Rb8 15.d4 Nc6 16.Bc4 Nh6 17.g4 (17.0-0!?+/-) 17...Ng4= 18.Rg1 h5 19.h3 Nh6 20.0-0-0 (worse is 20.Rg7 Nf5 21.Rg2 Ncd4 22.Nd4 Nd4-/+) 20...Kf8 (20...Rd8 21.Rg7 Nf5 22.Rh7 Nfd4 23.Nd4 Rd4 24.Rd4 Nd4 25.Nb5+= (25.Rh5? Bd7-+)) 21.Nh4 (21.Nb5 g6=) 21...Ne7 22.Kb2 (22.Nb5 Bd7=) 22...Nhf5 (22...Bd7 23.d5 ed5 24.Nd5 Nd5 25.Rd5 Bh3 26.Rd3+=) 23.Nf5= Nf5 24.d5 ed5 25.Bd5 (25.Rd5 Ke7=) 25...Ne7= 26.e6 (26.Rg3 Rh6=) 26...Rh6+= 27.Rge1 fe6 (27...Rf6 28.Re2+=) 28.Be6= Nc6 29.Bd7 (29.f4 Rg6=) 29...Bd7+= 30.Rd7 Kg8 (30...Rg6 31.Re2+=) 31.Rg1= g6 32.Ne6 Ne5 33.Rg7 (33.Rd5!? Nc6 34.Rd7=) 33...Kh8+= 34.Re7 Rh7 35.Rh7 Kh7 36.f4 Nc4 37.Kc3 b5 38.Rd1= Rb7 39.Kb4 a6 40.Kc5 Re7 41.Ng5 Kg7 42.Rd8 Rc7 43.Kd5 Nb6+= 44.Kd6 Rc8 45.Rc8 Nc8 46.Kc7 Ne7 47.Kb6 Kf6 48.Ka6 b4 49.Kb5 Kf5 50.Kb4 Kf4 51.Ne6 Kg3 52.a4 Kh3-+ 53.Kc5?? Kg4 54.a5 h4 55.a6 Nc8 56.Kc6 h3 57.Kc7 Na7 58.Kb6 h2 59.Ka7 h1Q 60.Nc7 Qc6 (60...Qc6 61.Kb8 Qb6 62.Kc8 Kf5-+) 0–1. Boersma,Paul (2350) – Kortschnoj,Viktor (2645), NLD–ch, 1977. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

11.Nc3 Qa5 12.Qa5 Na5 13.Nb5 Ke7 14.Rc1 Nh6 15.d4 (15.Rc7 Kd8 16.Rc3 Bd7+-) 15...Bd7 16.Nd6 Bc6 17.Bb5 (17.Rg1 f6+=) 17...Bb5 18.Nb5 Rhc8 19.Ke2 Rc6 (better 19...Nc4!?=) 20.Nd6+- b6 21.Ng5 (21.Rc6 Nc6 22.Rc1 Kd7+-) 21...f6+= 22.Nge4 (worse 22.Nh7 Rh8 23.Nb7 Rh7 (23...Nb7?? 24.Rc6 fe5 25.Rc7 Kd6 26.Rg7+-) 24.Na5 Rc1 25.Rc1 ba5 26.Rc7 Kd8 27.Ra7 fe5 28.de5 Nf5 29.Ra5 Rh2 30.Ra8 Kc7=+) 22...Nf7 23.Rc6 (23.Nf7!? Kf7 24.Nd6 Ke7 25.Ke3+=) 23...Nc6= 24.Rc1 Nd6 25.ed6 Kd7 26.Ke3 Rc8 27.Rb1 (27.Rc3 f5 28.Ng5 Kd6 29.Nh7 Rh8-/+) 27...Na5-/+ 28.Kd3 Nb7 29.a4 Nd6 30.Nd6 Kd6 31.a5 Rc6 32.ab6 Rb6 33.Ra1 a6 34.Ra2 Kc7 35.h4 Rc6 (35...h5 36.f3-/+) 36.g3 (36.g4 Kd6-/+) 36...Kb6 37.Rb2 Ka7 38.Ra2 Rc7 (38...h5 39.f3-/+) 39.Re2 Rc6 40.Ra2 Rb6 41.Kc4 Rb5 42.Re2 e5 43.d5 (43.f4 ed4 44.g4 h5-/+) 43...Kb6 44.Rd2 Kc7 (44...Rc5 45.Kb4-/+) 45.Ra2 Rb6 46.Kc5 Rd6 (46...f5 47.Ra5-/+) 47.Rb2 (47.Re2 Rd8 48.f4 ef4 49.gf4 Kd7=) 47...Rd8 48.Ra2 Ra8 49.Ra5 g6 (49...Kd7 50.h5-/+) 50.d6=+ Kd7 51.Kd5 e4 (51...Rb8 52.Ra6 Rb5 53.Kc4=+) 52.g4 f5 53.gf5 gf5 54.Ke5 Ra7 (54...Rb8 55.Ra6 Rb5 56.Kf4=) 55.h5 h6 56.Kf5 Kd6 57.Ke4 Ke6 58.f4 Kf6 ½–½. Wirig,Anthony (2145) – Buffe,Fabrice, FRA–chTJ, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

11.Nc3 Qa5 12.Bb5 Qa4+= 13.Ba4 Nge7 14.Rb1 0-0 15.Ke2 Rd8 16.Bc6 Nc6 17.Rhc1 Na5 (17...f6 18.Nb5 a6 19.Nc7=) 18.Nb5+- b6 19.Nd6 (19.Rc7 Ba6+=) 19...Ba6+= 20.Ke3 Nb7 21.Nb7 Bb7 22.Ne1 (22.Rc7 Bf3 23.gf3 Kf8+=) 22...Rd5 23.d4 Ra5 24.Rc7 (24.Rc2 Rd8=) 24...Bd5=+ 25.Rbc1 h6 26.Rd7 (26.Nd3 Ra2 27.Nf4 Ra3 28.Kd2 Be4=+) 26...Ra3-/+ 27.Nd3 (27.Ke2 Ra2 28.Ke3-/+) 27...Ba2 (better 27...Bg2!? 28.h4 b5-/+ (worse 28...Ra2 29.Rcc7 Rf8 30.Ra7 Ra7 31.Ra7-/+)) 28.Kd2= a5 (better 28...Bd5 29.Nf4 Be4=) 29.Rb7 (better 29.Ra1 Rd3 30.Kd3+=) 29...Rd8 30.Rb6 Rd4 31.Rc3 Rc3 32.Kc3 Rd8 (32...Rh4 33.Ra6-/+) 33.Rb5 (33.Ra6 Rd5 34.Rb6 a4-/+) 33...a4 (33...Ra8 34.Rc5-/+) 34.Nc1 (34.Ra5!? Rc8 35.Nc5-/+) 34...Bd5-/+ 35.g3 (35.Ra5 Rc8 36.Kb2 Rc4-+) 35...Rc8-+ 36.Kb2? (better 36.Kd2-+) 36...a3! 37.Ka3 Rc1 0–1. Chlaifer,Roman (2205) – Wintzer,Joachim (2320), NRW–Liga II, 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

11.Nc3 Qa5 12.Qf4 Nge7= 13.Bd3 Nb4 (13...Nd5 14.Qc4+=) 14.Bb1 (14.Bb5 Nbc6+=) 14...Nbd5 15.Nd5 Nd5 16.Qg5 Kf8 (16...0-0 17.0-0 Bd7 18.Qh4=) 17.0-0+- Bd7 18.Be4 Bc6 19.Rac1 (19.Rfc1 Qb4 20.d4 h6+=) 19...h6 20.Qh4 Qd8 (20...Qa2 21.Ra1 Qc4 22.d3=) 21.Qg3+= Nc3 (21...Qa5 22.Ra1+=) 22.Rc3+- Be4 23.Qf4 Bd5 24.Rfc1 Kg8 (24...g5 25.Qg4+-) 25.Rc7+- Qe8 26.Nd4 Kh7 27.Rf7 Rf8 28.Rcc7 (better 28.Rf8!? Qf8 29.Qf8 Rf8 30.a3+-) 28...Rf7= 29.Rf7?? (better 29.Qf7 Qf7 30.Rf7+=) 29...Rc8-+ (29...Rc8 30.f3 Kg8 31.Rg7 Kg7 32.Qf6 Kh7-+) 0–1. Gajewski,Grzegorz (2455) – Schmidt,Wlodzimierz (2405), Polish Extraleague, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

11.Nc3 Qb4 12.Qb4 Nb4 13.Bb5 (13.Rc1 Ne7+-) 13...Ke7+= 14.0-0 (14.Rb1 Nd5+=) 14...Nh6 15.Rab1 Nd5 16.Nd5 ed5 17.Ba4 Rd8 (17...f6 18.Rfe1+-) 18.Rfc1 b6 19.Rc7 Bd7 20.Bb3 Kf8 21.Bd5 Rac8 22.Rc8 (22.Ra7 Bf5 23.Bb7 Bb1 24.Bc8 Rc8-/+) 22...Bc8 23.Be4 Bf5 24.Bf5 Nf5 25.Rb4 Rd5 26.Ra4 a5 27.Kf1 Ne7 28.Rc4 b5 29.Rd4 b4 30.g3 Ke8 31.Rc4 Rb5 32.Ke1 (32.h3 h6+-) 32...Ng6 (32...a4!?+=) 33.d4+- a4 Black prepares b3 34.Nd2 Ne7 35.Ne4 Nf5? (better 35...Rb8+-) 36.g4+- b3 37.ab3 (37.gf5?! ba2 38.Ra4 Rb1 39.Ke2 a1Q 40.Ra1 Ra1+-) 37...ab3 38.gf5 b2 39.Nc3 b1Q 40.Nb1 Rb1 41.Ke2 Rh1 (41...Rb2 42.Ke3+-) 42.Rc8 Kd7 43.Rg8 g6 (43...Rh2 44.Rg7 Rh4 45.Rf7 Ke8 46.e6 Rd4 47.Rh7+-) 44.Rg7 gf5 45.Rf7 Ke6 46.Rh7 Kd5 (46...Rb1 47.Rh6 Kd5 48.e6+-) 47.Rd7 Kc4 (47...Ke6 48.Rd6 Ke7+-) 48.e6 Rh2 49.e7 Rh4 50.e8Q Re4 51.Qe4! (51.Qe4 fe4 52.Ke3+-) 1–0. Hechl,G (2220) – Heiny,M (2090), TCh–AUT, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

11.Nc3 Qb4 12.Bb5 Qa4 13.Ba4 Nge7 14.Bc6 Nc6 15.d4 0-0 16.0-0 (16.Ne4 f6+-) 16...Ne7 17.Nb5 Bd7 18.Nd6 Bc6 19.Nd2 Rfd8 (19...Bd5 20.Rfd1=) 20.Rab1 (20.N2c4 Nd5+=) 20...Rd7 (20...Nf5 21.Nf5 ef5 22.Nb3=) 21.N2c4 (21.Nb3 b6+=) 21...Bd5= 22.Rfc1 (22.Rbc1 f6 23.f4 Nc8 24.Nc8 Rc8+=) 22...Nc6 23.Rd1 (23.Rb2!?=) 23...Bc4-/+ 24.Nc4 Nd4 25.Kf1 Rad8 26.f4 (26.Nd6 Nc6 27.f4 f6-/+) 26...h5 (26...f6 27.Nd6 fe5 28.fe5-/+) 27.Ne3 (27.Nd6 Nf5 28.Rd3 f6=+) 27...Kf8 (27...b6 28.Rd3-/+) 28.Rb2 (28.Kf2 b6-/+) 28...Ke8 (28...Nc6 29.Rd6-/+) 29.Nc4 Nf5 30.Rd7 Rd7 31.g3 Kd8 (31...b6 32.Kf2-/+) 32.Kf2 Rc7 (32...b6 33.Ne3-/+) 33.Rd2 (33.Nd6 b6 34.Nf5 ef5-/+) 33...Kc8-/+ 34.Ne3 Ne3 35.Ke3 b6 (35...b5 36.Rf2-/+) 36.h3 (36.Rb2 Rc1-/+) 36...Rc3 37.Kf2 (37.Rd3 Rd3 38.Kd3 Kd7-/+) 37...h4!-+ 0–1. Depoorter,Enguerran (2120) – Camus de Solliers,Guillaume (2245), Reims FRA, Yout ch, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6)

11.Nc3 Nge7 12.Ne4 Qb4 13.Nd6 Kf8 14.Qb4 Nb4 15.Rb1 Nbd5 16.Ng5 (16.Nb7 Rb8 17.Ba6 Nc6-/+) 16...f6 17.ef6 (17.Ngf7 Rg8+-) 17...gf6 18.Nc8 Rc8 19.Ne6 Kf7 20.Nd4 Rhd8 (20...b6 21.Ba6 Rc5 22.0-0+-) 21.g3 (better 21.Rb7!? Rc1 22.Ke2 Nf4 23.Ke3 Re1 24.Kf4 Rd4 25.Kf3+-) 21...b6+- 22.Be2 Ng6 23.Bd1 Ndf4 24.Nf5 (24.Bb3 Kf8 25.Nf5 Nd3 26.Ke2 Nge5+-) 24...Nd3 (24...Rc1 25.Rb5 Nd3 26.Ke2=) 25.Ke2+- Nge5 26.Bb3 Kf8 27.f4 Nc6 28.Rhf1 Nc5 29.Bc4 Nd4 30.Nd4 Rd4 31.Rbc1 (31.Rfc1!?+-) 31...Re8= 32.Kd1 Re3 (better 32...Red8!? 33.Rc2 Ne4+=) 33.Re1+- Ra3 34.Rc2 a5 35.Kc1?? (better 35.Be6+-) 35...Rc4!-/+ (35...Rc4 36.Rc4 Nd3 37.Kb1 Ne1-+) 0–1. Skawinski,A (2245) – Sieciechowicz,M (2445), XXI Cracow Open, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6)

11.Nc3 Nh6 12.Ne4 Qa5 13.Nd6 Ke7 14.Qh4 Kf8 15.Qf4 (15.Qh5 Nb4 16.Rc1 Bd7+-) 15...Nf5+= 16.Nf5 ef5 17.Bd3 Qb4 18.Qe3 Be6 19.Rb1 Qe7 20.a4 h6 (20...Qa3 21.Bc2 Qe3 22.fe3+=) 21.0-0+- g6 22.Bb5 Nb4 23.Nd4 Kg7 24.Rfc1 Nd5 25.Qf3 Rhd8 26.Bc4 Nb6 27.Be6 (27.Ne6!? fe6 28.a5+=) 27...Rd4= 28.Bb3 (28.a5 Qe6 (worse 28...fe6 29.ab6 ab6 30.Rb6+=) 29.ab6 ab6 30.Qb7 Ra2-/+) 28...Qe5 (28...Rad8 29.Rd1=+) 29.Bf7 (29.Qb7 Rd7 30.Qf3=) 29...Rd7 (29...Qe4 30.Qb3=) 30.Bb3 (30.Re1!? Qd6 31.Re6 Qd2 32.Rg6 Kh7 33.Rf6+-) 30...Re8= (worse 30...Rd2 31.Re1 Qc5 32.a5+-) 31.d3 Ree7 32.g3 Rc7 (32...Rd4 33.Bc4=+) 33.Rc7= Rc7 34.h4 Nd7 35.Bc4 Nb6 36.Bb3 Nd7 37.h5 g5 (37...gh5 38.Qh5 Nc5 39.Qf3=) 38.d4+= Qf6? (38...Qd4 39.Qd5 Double attack (39.Qf5 Deflection; 39.Qd5 Decoy)) 39.Qd5+- Qf8 40.Qe6 (40.Re1 Nf6 41.Qf5 Kh8+-) 40...Kh8 41.Re1 (better 41.d5 Nc5 42.Qe5 Rg7 43.d6 Nb3 44.Rb3+-) 41...Nb6?? (better 41...f4+-) 42.Qg6 (42.Qe5!? Rg7 43.Qe8 Qe8 44.Re8 Kh7+-) 42...Rc8 43.Re6 1–0. Skawinski,A (2430) – Gierulski,Kamil (2195), 28th Cracovia Open A, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Nc6)

10.Qa4 Bd7

11.Qd4 Qc1 12.Ke2 Bb5 13.d3 Rd8 14.Nbd2 Qa3 15.Qf4 Qb2 16.Rd1 Bd3 17.Ke1 Bc2 18.Be2 Bd1 19.Bd1 Ne7 20.Qa4 Nc6 21.Qb3 Qc1 22.Qb7 Nd4 23.Nd4 Rd4 24.Qb8 Ke7 25.Qb7 (25.Qa7?? Rd7 26.Qd7 Kd7-+) 25...Ke8 26.Qb5 Ke7 27.Qb7 Ke8 28.Qb8 ½–½. McPhillips,Joseph (2395) – Haria,R (2440), 32nd Pula Open, 2018. (=1.Nf3 e6 2.e4 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Bd7)

11.Qd4 Qc1 12.Ke2 Bb5 13.d3 Rd8 14.Nbd2 Qa3 15.Qf4 Qb2 16.Rd1 Bd3 17.Ke1 Bc2 18.Be2 (18.Qg4 Bd1 19.Kd1 Kf8+=) 18...Bd1+= 19.Bd1 Ne7 20.Qa4 (20.Nc4 Qc3 21.Nfd2 0-0=+) 20...Nc6= 21.Qb3 (21.Ke2 b5 22.Qc2 Nd4 23.Nd4 Qd4+=) 21...Ne5 22.Qb2 Nd3 23.Ke2 Nb2 24.Bc2 Rc8 25.Bb3 b5 26.Rb1 Nc4 27.Nc4 bc4 28.Bc4 Ke7 (28...Rc4 29.Rb8 Double attack (29.Rb8 Decoy)) 29.Rb7+- Kd6 30.Bb3 Rc7 31.Rc7 Kc7 32.Ng5 Rf8 33.Nh7 Re8 34.Ng5 f6 1–0. Florstedt,Johannes (2085) – van Schyndel,Andreas (1930), 15th Godesburg Open, 2011.

11.Qd4 Qc1 12.Ke2 Bb5 13.d3 Rd8 14.Nbd2 Qa3 15.Qf4 Qb2 16.Rd1 Bd3 17.Ke1 Bc2 18.Be2 Bd1 19.Bd1 Ne7 20.Qa4 Nc6 21.Ke2 0-0 22.Qb3?? (better 22.Bc2 Ne5 23.Rb1+=) 22...Rd2!-+ 23.Ke1 (23.Nd2 Nd4 Double attack) 23...Qb3 (better 23...Rfd8 24.Qb2 Rb2 25.a3 Rd1 26.Kd1 Rb1 27.Kd2 Rh1 28.a4-+) 24.Bb3 Rb2 25.Rf1 (25.g4 Rb1 26.Bd1 Rd8-+) 25…Rd8 0-1. Salmons,Calum (1940) - Keetman,Maaike (2165), 4NCL Online Div2, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

11.Qd4 Qc1 12.Ke2 Bb5 13.d3 Rd8 14.Nbd2 Qa3 15.Qg4?? Qc3=+ 16.Rd1?? (16.Rb1 Bd3 17.Ke1 Bb1 18.Qg7-+) 16...Rd3-+ 17.Ke1 (17.Nc4 Bc4 18.Qc4 Qc4 19.Rd3 Qa2 20.Nd2-+) 17…Re3!! (17...Re3 18.Be2 Re2 19.Kf1 Rd2 20.Qc4 Qc4 21.Kg1 Rd1 22.Ne1 Re1) 0-1. Dotta,Gian Franco (1955) - Roselli Mailhe,B (2450), Zonal, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

11.Qd4 Qc1 12.Ke2 Bb5 13.Ke3 Bf1

14.Qa4 b5? 15.Qb5+- Bb5 16.Rc1 Ne7 17.Nc3 Nf5 18.Kf4 Bd3 19.Ne4 (19.Ne1 Rd8 20.Nd3 Rd3+-) 19...0-0 (19...h6 20.h4+-) 20.Nc5 (20.a3 h6 21.Nc5 g5 22.Kg4 Be2+-) 20...Rfd8 (20...Rad8 21.Nd3 Rd3 22.Rc7+-) 21.Nd3 Rd3 22.Rc4 Rad8 23.Rac1 h6 (23...f6 24.Ke4+-) 24.Ke4+- g5 (24...Ne7 25.R1c2+-) 25.R1c3 R3d5 (25...R3d7 26.h3+-) 26.g4 Ne7 27.Rc7 (27.Nd4 Kg7+-) 27...R5d7 28.Rd7 Rd7 29.d4 Kg7 (29...Nd5 30.Rc8 Kg7 31.h4+-) 30.h4 Kg6 (30...gh4 31.Nh4 Nd5 32.Rc2+-) 31.hg5 (31.h5 Kg7+-) 31...hg5 32.Rb3 (better 32.Rc2!?+-) 32...Rc7+= 33.Ne1 Nd5 34.Kd3 a5 (34...f6 35.ef6 Nf6 36.f3+-) 35.Nc2 (35.Ra3 Rc1 36.Kd2 Rc4+-) 35...a4 36.Ra3 Nf4 37.Kd2 Rc4 38.Rc3 Rc3 39.Kc3 Nh3 40.f3 Ng1 41.Ne1 Ne2 42.Kd3 Nc1? (better 42...Nf4 43.Kc4 Ne2+-) 43.Kd2 Na2 44.Nd3 1–0. Forcen Esteban,Daniel (2365) – Ramon Perez,Jose Luis (2250), La Puebla de Alfinden ESP, Closed IM, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5 7.Bc5 Qc5 8.c3 Nc6 9.cd4 Nd4 10.Qa4 Bd7)

14.Qa4 Kf8 15.Qb4 Ne7 16.Kf4= (16.Qb7?? Nd5 17.Qd5 ed5 18.Rf1 Qf1-+).

14.Qa4 Kf8 15.Qb5 Bb5 16.Rc1 Ne7 17.Nd4 Bc6 18.Nc6 Nc6 19.d4 Rd8 20.Rc4 f6 21.f4 (21.Nc3 fe5 22.de5 Ke7+=) 21...g5= 22.g3 gf4 23.gf4 Rg8 24.Nc3 (worse 24.ef6 Rg1-/+) 24...Rg2 25.Ne4 Rh2 26.Nf6 Ne7 27.Rg1 Rh3 28.Kf2 b5 29.Rb4 a5 30.Rb5 Rd4 31.Ra5 Rf4 32.Ke1 Rh2 33.Ra8 Kf7 34.Rh8 Exerts pressure on h7 34...Ng6 ½–½. Nabuurs,Mart (2160) – Larmuseau,Maarten (2265), 4th Maastricht Limburg op–A, 2010.

14.Qc3 Qd1 15.Qd3 Qf3 16.gf3 Bd3 17.Kd3 Ne7 18.Rc1 Nc6 (18...Rd8 19.Ke2-/+) 19.Rc5 0-0 20.Na3 (20.Ke3!?=+) 20...f6-/+ 21.Nc4 fe5 22.Ne5 Rf5 23.f4 Nb4 24.Ke2 Nd5 25.Rac1 Nf4 26.Kf1 (26.Kd1 Nd5 27.Rc8 Rc8 28.Rc8 Rf8 29.Rf8 Kf8-/+) 26...Re5! 27.Re5 Nd3 28.Rec5 Nc1 29.Rc1 Rd8 30.Ke2 Rd7 31.Ke3 Kf7 32.d4 Ke7 33.Rc8 Kd6 34.Kd3 (34.Ke4 g5-/+) 34...Rf7 (34...e5 35.de5 Ke5 36.Ke3-/+) 35.Ke3 Rc7 36.Rg8 Rc3 (36...e5 37.Rd8 Ke7 38.Rb8 ed4 39.Kd4-/+) 37.Ke4 g6 38.f3 (38.a4 b6-/+) 38...Ra3 39.Rg7 (39.Rd8 Ke7 40.Rh8 h5 41.Rh7 Kf6 42.Rb7 Ra2-/+) 39...b5 40.Rb7 Kc6 (40...a6 41.Rb6 Kd7 42.Rb7 Kc6 43.Rh7 Ra2 44.Rg7 Re2 45.Kd3 Rh2 46.Rg6-+) 41.Rh7-/+ Ra2 42.Rh6 (42.h4!?-/+) 42...Rg2-+ 43.h4 b4 44.h5 b3 (44...b3 45.hg6 b2-+) 0–1. Olsarova,T (2230) – Zhukova,N (2425), ch–Euro Indiv Women, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

14.Qa4 Kf8 15.Qb5 Bb5 (15...Qd2 16.Nbd2 Bb5 17.Ne4=) 16.Rc1 Ne7 (16...Bc6 17.Nc3=) 17.Nd4 Bd7 (17...Bc6 18.f3=) 18.Nc3+= f6 19.f4 fe5 20.fe5 Ng6 21.Rab1 b6 22.Ncb5 (22.Nf3 Ke7+=) 22...Ne5= 23.Rc7 a6 (23...Ng4 24.Kf3 h5 25.h3+=) 24.Nd6+= Ke7 25.Rb6 Rhb8 26.Nb7 Attacking the isolated pawn on e6 26...Rc8 (better 26...Kf6!?+=) 27.Re6+- Kf8 28.Rc8 (28.Re5?! Rc7 29.Nc5 Kf7=) 28...Bc8 29.Re5 Bb7 30.g4 Bc8 31.g5 Ra7 32.Nb3 Kf7 (32...Rf7 33.d4+-) 33.Nc5 h6 34.h4 hg5 35.hg5 Kg6 36.d4 Bf5 37.d5 Kg5 38.d6 Kf6 39.Rf5! Kf5 40.d7 Ra8 41.Nb7 Ke5 42.d8Q Rd8 43.Nd8 Kd5 44.Kd3 g5 (44...g6 45.Kc3+-) 45.Nf7 g4 46.Nh6 g3 47.Nf5 g2 48.Ne3 Kc5 49.Ng2 Kb4 50.Kc2 Ka3 51.Kb1 1–0. Nabuurs,M (2185) – Van de Griendt,JW (2330), TCh–NED Meesterklasse, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

14.Qc3 Qd1 15.Rf1 Qf1-/+ 16.Na3 Qa6 17.Qc5 Ne7 18.Nb5 (18.Qb5!? Qb5 19.Nb5 Nf5 20.Ke4-/+) 18...0-0-+ 19.Nc7? (better 19.Qe7 Qb5 20.Rc1-+) 19...Nf5 20.Kf4 Qa4 21.d4 Rac8 22.Rc1 Rfd8 23.Rc4 (23.a3 b5 24.Qb4 Qb4 25.ab4 Rd7 26.Ne6 Rc1-+) 23...Qd7 24.Qa5 (24.Ke4 b6 25.Qc6 Qc6 26.Rc6 Rd7-+) 24...Ne7 25.Qc3 (25.Ne6 b6 26.Rc8 Rc8 27.Qa3-+) 25...Rc7! (25...Rc7 26.Kg4 Rc4 27.Qc4 Nf5-+) 0–1. Deman,Stefaan – Haberkorn,Danny, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

14.Qc3 Qd1=+ 15.Kf4 Ne7 16.Kg3? (16.Qd3 Qa4 17.Qd4-+) 16...Rc8?? (16...Nf5 17.Kf4 Rd8-+) 17.Qb3=+ Nf5 18.Kh3 Qe2 19.Na3 Nd4! 20.Qe3 (20.Nd4 Qh5 Double attack (20...Qd2 Decoy)) 20...Qf3 21.Qf3 Nf3 22.Rhf1 Ne5 23.Nb5 Rd8 24.Na7 Rd2 25.Kg3 (25.Rfd1 Rf2 26.Rdb1 Ke7 27.Rb7 Kf6-+) 25...Ke7 26.Rfb1 Rd7 27.a4 Ra8 28.Nb5 Rc8 29.Ra2 Rc4 30.f3 Nc6 31.Rb3 Rb4 32.Rb4 Nb4 33.Rb2 Nc6 34.Nc3 f5 35.Rb5 Kf6 36.Rb6 g5 37.h3 h5 38.Kf2 h4 39.Ke3 Ne5 40.Ke2 Nd3 41.Rb1? (better 41.Kf1-+) 41...Nf4 42.Kf1 Rc7 (better 42...Rd2!? 43.Rb4-+) 43.Ne2 Nd5 44.a5 Ne7 (44...Rc5 45.Ra1-+) 45.g3 (45.Rb5!?-/+) 45...hg3-+ 46.Ng3 Nd5 (46...Nc6 47.Rc1-+) 47.Ne2 Rh7 48.Kf2 Rc7 49.Rb2?? (49.Kf1 Rc5-+) 49...Nc3 (better 49...Rc5-+) 50.Nc3= Rc3 51.Rb7 Ra3 52.Rb5 Ra2 53.Kg1 Ke7 54.Rb7 Kf6 55.Rb5 Kg6 56.Re5 Kh5 57.Re6 Ra5 58.Re2 Kh4 59.Kg2 Ra3 60.Rb2 ½–½. Kaczmarek,Aleksander (2325) – Zaleski,Lukasz (2080), 12th Baltic Pearl Open, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Ba3 Qa5)

6.Bd3 Nc6

7.0-0 Nb4 8.Bc4 Ne7 9.c3 Nbc6 10.Qe2 Nf5 11.a4 0-0 12.Ba3 b6 13.Bc5 bc5 14.Na3 Na5 15.Bd3 Bb7 16.Nb5 (16.Rfb1 Bd5+=) 16...a6 17.Bf5 ab5 18.Bc2 ba4 19.cd4 Bf3 20.Qf3 Qd4 21.Ra4 Qd2 (21...Qe5? 22.Rfa1 Rad8 23.Ra5 Rd2 24.Bd3+-) 22.Qe4 (22.Ra2 g6+=) 22...g6= 23.Rfa1 Rad8 (23...Ra7 24.h3=+) 24.h4 (24.Ra5 Rd4 25.Qe1 (25.Rc5?? Re4 26.Be4 Qd4-+) 25...Qc2 26.Rc1=) 24...Nc6-/+ 25.h5 (25.Qc6 Qc2 26.Qf3 Rd4 27.Rd4 cd4-/+) 25...Nb4 26.hg6 (26.Bb3 Rd4 27.Qe1 Qd3-+) 26...hg6 (26...fg6 27.Bb3 Qf2 28.Kh2-+) 27.Bb3 Rd4 28.Qf3?? (28.Qe1-+) 28...Rf4 (better 28...Rd3 29.Qf6 Rb3-+) 29.Qg3=+ Re4 (29...Rf5 30.Rd1 Qe2 31.f4-/+) 30.Be6 Re1 31.Re1 Qe1 32.Kh2 Kg7 (32...fe6 33.Qg6 Kh8 34.Qh5 Kg7 35.Ra7 Rf7 36.Rf7 Kg8 37.Qh7) 33.Qf4 Qd1 (33...fe6 34.Ra7 Kg8 35.Qh6 Qe5 36.Kg1 Qe1 37.Kh2 Qe5 38.Kg1 Qe1 39.Kh2 Qe5=) 34.Qf6 (34.Ra7 Qh5 35.Kg3 g5 36.Qf6 Kh7+-) 34...Kh7? (34...Kh6 35.Ra3 Nd3 36.f4+=) 35.Ra3 (35.Ra7 Qh5 36.Kg3+-) 35...Nd3+= 36.Qh4 Kg7 37.Qf6 Kh6 (37...Kh7 38.f4 Qh5 39.Bh3+=) 38.Qh4 (38.f4 Nf2 39.Qh4 Qh5 40.Qh5 gh5+-) 38...Kg7 39.Qf6 Kh6 (39...Kh7 40.f4 Qh5 41.Bh3+=) 40.Bg4 Qd2 41.Qh4 Kg7 42.Qf6 Kg8 43.Kg3 c4 44.e6 Qb2 (better 44...Nf2 45.ef7 Kh7=) 45.Qb2 (45.ef7!? Kh7 46.Qb2 Nb2 47.Be6+-) 45...Nb2+= ½–½. Ayza Leon,David (2245) – Unciti Juan,Javier (2155), 5th Almansa Spain, Open, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.0-0 f5 8.ef6 Nf6 9.Re1 0-0 10.Ng5 Exerts pressure on the backward pawn 10...e5 11.Bc4= Kh8 12.d3 Qe7 13.Nd2 Bb4 14.Rb1 h6 15.Rb4 (15.Ngf3!?=+) 15...Qb4 (15...Nb4 16.Ngf3 Nc6 17.Bb5-/+) 16.Nf7 Kh7 17.Ne4 (17.Ne5 Ne5 18.Re5 Ng4-/+) 17...Bg4 (17...Ne4 18.Re4 Bf5 19.Ng5 Kh8 20.Rh4-/+) 18.f3 (better 18.Nf6!? gf6 19.f3-/+) 18...Ne4-+ 19.fg4 Nc3 20.Qf3 Qe7 (20...Rac8!?-/+) 21.g5=+ g6 22.gh6 e4 23.Qf4 Rf7 24.Qf7 Qf7 25.Bf7 Ne5 26.Bb3 e3 27.Be3 de3 28.Re3 Nc6 29.g4 (29.Kf1!?=+) 29...Kh6-/+ 30.h4 a5 31.a4 (31.Kg2 a4 32.Bc4 b5-+) 31...Nd4 32.Kg2 Nb3 (32...b5 33.ab5 a4 34.Bc4-+) 33.cb3 Nd5 34.Re4 Rd8 35.Kf3 (35.d4 Nc3 36.Re3 Na2-/+) 35...Kg7 (35...Nc3!? 36.Re3 Rd4 37.h5-+) 36.g5 Rd7 37.Kg4 (better 37.Rc4!?-/+) 37...Nb4-+ 38.h5 gh5 39.Kh5 Nd3 40.Rc4 Ne5 41.Rc5 Nc6 42.Rb5 Re7 43.Rb6 Ne5 44.Rb5 Nc6 45.Rb6 Rd7 46.Rb5 Nd4 (46...Kg8 47.Kg6-+) 47.Rb6 Rc7 48.Rg6 Kf7 49.Rf6 Kg7 50.Rg6 Kh8 51.Rb6 Nc6 52.Rb5 Kg8 53.Kg6 Nd4 (53...Rg7 54.Kh5-+) 54.Ra5 Rc6 55.Kh5 Nb3 56.Rd5 Nc5 57.a5 Kg7 58.Rd4? (better 58.Re5-/+) 58...Ra6-+ 59.Rd5 Ra5 60.Re5 b6 61.Re7 Kf8 62.Re3 Ra7 63.Kh6 Rb7 (63...Re7!? 64.Ra3-+) 64.g6 b5 (64...Rc7 65.Rf3 Kg8 66.Re3-+) 65.Ra3? (better 65.Re5 Na6 66.Rd5=+) 65...Ne6 66.Rf3 (66.Ra8 Ke7 67.g7 Ng7 68.Kg7-+) 66...Kg8 67.Re3 Nf8 0–1. Christensen,Bo Garner (2135) – Bank,Pelle (2255), 55th Danish Championship Ex, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Ba3 Qa5 8.Bc5 (8.Bb2!?=) 8...Qc5-/+ 9.0-0 Ne5 10.Ne5 Qe5 11.Na3 (11.Re1 Qf6=+) 11...Nf6-/+ 12.Nc4 (12.Re1 Qc5 13.Nc4 Bd7-/+) 12...Qc7 13.Re1 Bd7 14.Qf3 (14.Ne5 0-0-/+) 14...Bc6 15.Qh3 Bb5 (15...0-0 16.Ne5 Rfd8 17.f3-/+) 16.Nd6 Qd6 17.Bb5 Ke7 18.Rab1 Rac8 19.Bd3 b6 20.g3 (20.Qh4 Rc5 21.f4 Rhc8-/+) 20...Rc5 21.f4 g6 (21...Rhc8 22.f5-+) 22.Re2-/+ Rhc8 23.Rbe1 Kf8 24.Re5 Kg7 25.g4 (25.Qh4!?-/+) 25...Nd5-+ 26.Qf3 Nb4 27.R5e4 (27.R1e4 Nc2 28.Qf2 Rd8-+) 27...Nc2 28.Bc2 Rc2 29.Qd3 Ra2 30.Rd4 Qc5 31.Kg2 Qc3 32.Re3 (32.Qc3 Rc3 33.Kf2 b5-+) 32...Qd3 33.Red3 Rc5 34.Rd7 Rc4 35.Kg3 Raa4 36.Rf3 Rd4 37.Rb7 (37.Rd4 Rd4 38.Ra3 a5-+) 37...Rd2 38.f5 (38.g5 Raa2-+) 38...ef5 (38...gf5 39.gf5 e5 40.Rf2-+) 39.gf5 gf5 0–1. Maier,C (2385) – Rambaldi,Francesco (2555), 9th Capo d'Orso Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6)

7.a4 Nge7 8.Ba3 Qb6 9.0-0 Bd7 10.Qe2 Rd8 11.Bc5 Qc5 12.Na3 Nb4 13.Nc4 Nc8 14.Ng5 Nd3 15.cd3 Bc6 16.f4 (16.Qh5 Qe7=) 16...h6 17.Ne4 Be4 18.Qe4 Qd5 19.Rfb1 Qe4 20.de4 b6 (20...Rd7 21.Rb4+=) 21.d3 Ke7 22.a5 Rd7 23.f5 (23.ab6 Nb6 24.Nb6 ab6 25.Rb6 Rc8+-) 23...ba5 24.Ra5 Rhd8 (24...Rc7 25.Kf2+=) 25.g4 (25.Rc5!?+-) 25...Rc7+= 26.Rb8 Nb6 (26...Rdd7!?=) 27.f6+- gf6 28.ef6 Kd7 (28...Ke8 29.Nd6 Kd7 30.Rd8 Kd8 31.Rh5+-) 29.Ne5 (29.Nb6!? ab6 30.Rb6+-) 29...Ke8+= 30.Rd8 Kd8 31.h4 Ke8 32.g5 hg5 33.hg5 Kf8 (33...Nd7 34.Nf3+-) 34.Kf2 Nd7 35.Rb5 (35.Nf3!?+-) 35...Kg8+- 36.Nf3 Rc2 (better 36...a6!? 37.Rb2 Rc5+-) 37.Kg3+- Rc3 38.Rb7 (38.Nd4?! Rd3 39.Nf3 a6+=) 38...Nc5 (38...Nf8 39.Ne5 Ng6 40.Rb8 Kh7 41.Ng6 Kg6 42.Rg8 Kh7 43.Rg7 Kh8 44.Rf7 Kg8+-) 39.Rb8+- (worse 39.Ra7 Rd3 40.e5 Re3+-) 39...Kh7 40.Rf8 Nd3 41.Rf7 Kg8 42.Rg7 Kf8 43.Nd4 (43.Ra7?! Ne5 44.Kf4 Ng6 45.Kg4 Re3+-) 43...Nc5 44.Kg2 (44.Kf4 a5+-) 44...Rd3 45.g6 Rd2 46.Kf3 Rd3 47.Ke2 Rd4 48.Rc7 Rd2 49.Kd2 Ne4 50.Ke3 Nf6 51.Rf7 (51.Rf7 Ke8 52.Rf6 Ke7 53.Rf7 Ke8 54.Rf2 Kd7 55.g7 Kc6 56.g8Q Kd7 57.Rd2 Kc6 58.Qc8 Kb5 59.Rb2 Ka5 60.Qc5 Ka4 61.Qa7) 1–0. Christensen,Bo Garner (2255) – Percivaldi,Martin (2065), CXU Obro New Year, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6)

7.c3 Nge7 8.0-0 Ng6 9.Bg6 fg6 10.Ba3 b6 11.Bc5 bc5 12.Na3 (12.Qa4 Bb7+=) 12...0-0= 13.cd4 (13.Rb1 Qa5 14.Nb5 A) worse 14...Qa2 15.Ra1 (15.cd4?! cd4 16.Ra1 Qc4=) 15...Qb2 16.Qa4 dc3 17.Rab1 (17.Nc3?! Qb7=) 17...Ne5 18.Ne5 Qd2 19.Nc7+- (19.Na7?! c2 20.Ra1 Qd5=); B) 14...Rb8+=) 13...Nd4 (13...Ba6 14.dc5 Bf1 15.Qf1 Rf3 16.gf3 Ne5 17.Qa6 Nf3 18.Kh1-/+) 14.Nd4= Qd4 15.Qe2 Rf5 16.Rfe1 Bd7 17.Nc2 Qf4 18.f3 (18.Qe3 Ba4 19.Na3 Rd8=) 18...Bc6 19.Rab1 Rg5 20.Qe3 Rf8 (20...Qf5 21.Kh1= (21.Qc5 Rg2 22.Kh1 Qh3 23.Qg1 Bf3 24.Rb8 Rb8 25.Qg2 Qg2)) 21.Qf4+= (21.Qc5?? Rg2 22.Kg2 Qf3 23.Kg1 Qg2) 21...Rf4 22.Kf2 Bd5 (22...Rh5 23.h3+=) 23.Rb8+/- Rf8?? (better 23...Kf7+/-) 24.Rf8+- Kf8 25.a3 (better 25.g4 Ba2 26.h4+-) 25...Rf5 26.Re3 g5 27.g4 Rf4 28.Rc3 Rc4 29.Rc4 Bc4 30.Ne3 Bd5 31.Nc2 (31.d3 Ke7+=) 31...Ke7= 32.Ke3 Kd7 33.f4 gf4 34.Kf4 Kc6 35.Ke3 Kb5 36.Kd3 a5 Black prepares c4 37.Kc3 h6 38.Ne3 c4?? (38...Bf3 39.Kb3=) 39.Kc2 (better 39.Nd5 ed5 40.Kd4+-) 39...g6 (39...Bf3 40.d3 cd3 41.Kd3-/+) 40.Kc3 Kc6? (better 40...Kc5=) 41.Kd4+/- (41.Kd4 Bf3 42.Kc4+/-) 1-0. Lisenkov,Svyatoslav - Uzintseva,Daria, 23rd Voronezh FIDE Open, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

7.c3 Nge7 8.0-0 Ng6 9.Bg6 hg6 10.Ba3 Qa5 (10...b6!?=) 11.Bc5+= Qc5 12.Qe2 (12.cd4 Nd4 13.Qa4 Nc6+=) 12...b6 (12...0-0 13.d3=) 13.cd4 (13.Qe4 d3=) 13...Nd4+= 14.Nd4 Qd4 15.Nc3 Qh4 (15...Bb7!? 16.h3 0-0+=) 16.h3+= 0-0 17.Qe4 Qe4 18.Ne4 Rd8 19.Nd6 Ba6 20.Rfc1 Rd7 21.d4 Bb7 22.Rc3 Bd5 23.a4 Rb8 24.Rac1 a6 (24...g5 25.Rc7 Rbd8 26.R1c3+=) 25.f4 (25.Rc8 Rc8 26.Rc8 Kh7+/-) 25...b5 (25...Kh7 26.Rc8 Rc8 27.Rc8+=) 26.ab5 ab5 27.Rc8 Rc8 28.Rc8 (worse is 28.Nc8 Rb7-/+) 28...Kh7 29.Rb8 (29.Nb5!? Rb7 30.Rc5+/-) 29...Ra7= 30.Rb5 (worse is 30.Nb5 Ra1 31.Kf2 Rb1-/+) 30...Ra2? (30...Ra1 31.Kf2 Ra2 32.Ke3=) 31.g4 (better is 31.Nf7 Rg2 32.Kf1+/-) 31...Rd2?? (better is 31...Rg2 32.Kf1 Rd2+=) 32.Nf7+- Rd4 33.Rb8 Rf4 (33...g5 34.Ng5 Kg6+-) 34.Rh8 1–0. Devendra,Kumar D (2070) – Moskalenko,Viktor (2525), Ramadan Blitz International Championship, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Qe2 Nge7 8.c3 (8.0-0 0-0=) 8...Ng6 (8...0-0 9.0-0=+) 9.Bg6= fg6 10.0-0 0-0 11.Ba3 b6 12.Bc5 bc5 13.cd4 Nd4 14.Nd4 Qd4 15.Nc3 Bb7 (15...Rf5 16.Rfe1 Bd7 17.Qe3=) 16.Qe3 (16.Nb5 Qd5 17.f3 Ba6=) 16...Rab8 17.Rab1 Bc6 18.h3 ½–½. Mombiela Martinez,G (2090) – Jimenez Almeida,L D (1930), 5th TORNEO INTERNACIONAL PUENTE FORAL A, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6)

7.0-0 Nge7

8.Ba3 Qa5 9.Bc5 Qc5 10.Re1 Ng6 e5 draws heavy fire 11.Bg6 hg6 12.d3 Nb4 13.Na3 (13.Nbd2!?+=) 13...b5= 14.Rb1 (14.Nd4 Qd4 15.Nb5 Qh4=) 14...a6=+ (worse 14...Na2 15.Nb5 Nc3 16.Nc3 dc3 17.Re4+/-) 15.Nd2 (15.Nd4!? Qd4 16.Re4=) 15...Na2-/+ 16.Qf3 (better 16.Rb3-/+) 16...Qa7?? (better 16...Ra7 17.Rb3 Bb7-+) 17.Ne4+= Rb8 18.Nc4 (18.Nd6 Kf8 19.c4+/-) 18...Rh5 (better 18...0-0!? 19.Ncd6 Bb7=) 19.Ncd6+/- Kf8 20.Qf4 (20.Rb2 Nc3 21.Nc3 dc3+/-) 20...Nc3 (better 20...Qe7+=) 21.Ng5 (better 21.Nc3!? dc3 22.Rb3+/-) 21...Nb1= 22.Ndf7? (better 22.Rb1 Kg8 23.Ndf7= (worse 23.Ngf7 Rf5 24.Nf5 Qf7-+)) 22...Nc3-+ 23.Nd8 Kg8 24.Nc6 Qc7 25.Nb8 Qe7?? (25...Nd5 26.Na6 Ba6-/+ (26...Nf4?! 27.Nc7 Rg5 28.g3=+)) 26.h4 (26.Qd4 Qg5 27.Qc3 Bb7+/-) 26...Bb7 (26...Rg5 27.hg5 Qc5 28.Qf3+=) 27.Qg4 (27.Qd4 Rg5 28.hg5 Qg5+/-) 27...b4 (27...a5 28.Qe6 Qe6 29.Ne6 Rh4 30.Nc5+/-) 28.Ra1 (28.Qe6 Qe6 29.Ne6 Rh4+-) 28...Nb5? (better 28...Bc8+/-) 29.Na6+- Ba6? (29...Nc3+-) 30.Ra6 Nc7 31.Ra7 Qd8 (31...Rg5 32.hg5 (worse 32.Qg5 Qg5 33.hg5 Nd5+-) 32...Qc5 33.Rb7+-) 32.Rc7! (worse 32.Ne6 Ne6 33.Qe6 Kh7+-) 32...Qc7 (32...Qc7 33.Qe6 Double attack (33.Ne6 Decoy)) 33.Qe6 (33.Qd4 b3 34.c4 Qb8=+; 33.Ne6?! Qe5 34.Qg6 Qe1 (34...Rh4?? 35.Qe8 Kh7 36.Nf8 Kg8 37.Qe5 Kf8 38.Qd6 Kf7 39.Qc7 Ke6 40.Qg7+-) 35.Kh2 Qe5 (35...Rh4 36.Kg3 Qe5 37.Kh4 Qh2 38.Kg4 Qg2 39.Kf5 Qf2 40.Ke5 Qe3 41.Kd5 Qf3 42.Kc5+-) 36.Kh3 Qf5 37.Qf5 Rf5+=) 33...Kf8 34.Qg6 Rg5 35.Qg5 (worse 35.hg5 Qc2 36.g3 b3 37.Qd6 Ke8+-) 35...Qc2 36.Qd8 (36.e6!? Qc7+-) 36...Kf7 37.Qd5 Kf8 (37...Kg6 38.Qe4 Kf7 39.Qd4+-) 38.Qd6 Kg8 39.Qb4 (better 39.e6 Qc8 40.g4+- (40.Qb4?! Qc1 41.Kh2 Qf4 42.Kh3 Qf5 43.Kg3 Qe5 44.Kf3 Qf5 45.Ke2 Qe6 46.Kf1 Qg4+-)) 39...Qc1+/- 40.Kh2 Qf4 41.Kg1 Qc1 42.Kh2 Qf4 43.Kh3 Qf5 44.Kg3 Qe5 45.Kf3 Qh5? (better 45...Qf5 46.Ke2 Qg4 47.Ke1 Qh4 48.Qc4 Kh7+/-) 46.g4+- Qh4 47.Qd4 Qh3 48.Ke2 Qg2 (48...Qh6 49.Qd5 Kf8 50.Qd8 Kf7 51.Qd7 Kf8 52.d4+-) 49.Qe4 Qg1 50.Kf3 (50.d4 Qa1+-) 50...Qh1 51.Kg3 Qg1 52.Kf3 Qd1?? (52...Qh1 53.Kf4 Qh6 54.Kg3 g5+-) 53.Ke3 (better 53.Kg2!?+-) 53...Qe1 54.Kf3 Qd1 55.Kf4 Qd2 56.Kg3 Qd1 57.Qe3 Qg1 58.Kf4 Qh2 59.Ke4 Qh1 60.f3 Qa1 61.d4 Qb1 (61...Qa6 62.Qb3 Kf8 63.Qb8 Kf7 64.Qc7 Kg6 65.Kd5+-) 62.Kf4 Qb8 63.Qe5 Qf8 64.Ke3 (64.Kg3 Qc8+-) 64...Qb4 (64...Qa3 65.Ke4+-) 65.d5 Qb3 (65...g6 66.Qf6 Qe1 67.Kf4 Qd2 68.Ke5 Qc3 69.Ke6 Qc8 70.Ke7 Qb7 71.Ke8 Qb8 72.Qd8 Qe5 73.Kd7 Kf7 74.Kc8+-) 66.Kf4 Qc4 (66...Qb5 67.Qe6 Kh7 68.d6+-) 67.Kg3 (better 67.Kg5 Qb3 68.Kg6+-) 67...Qf1 (67...Qc1 68.Qe6 Kh7 69.f4+-) 68.d6 Qg1 69.Kf4 Qh2 70.Kf5 Qh7 71.Ke6 Qg6 72.Kd7 Qf7 73.Qe7 Qf3 74.Qe6 Kf8 (74...Kh8+-) 75.Qe8 1-0. Bernadskiy,V (2625) - Ghimpu,Samuel_Timotei (2300), Titled Tuesday, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

8.Ba3 b6 9.Qe2 Ng6 10.Bc5 bc5 11.Na3 0-0 12.Qe4 (12.Rfb1 f5+=) 12...Bd7 13.c3 dc3 (13...f5 14.ef6 Qf6 15.Rac1=) 14.dc3+= Nce7 15.Rfd1 Bc6 16.Qe3 Qc7 (16...Bf3 17.Qf3 (worse 17.gf3 Nd5 18.Bg6 Ne3 19.Rd8 Rad8 20.Bh7 Kh7 21.fe3 Rd3-+) 17...Qa5 18.Nc4 Qc3 19.Rac1+=) 17.Nc4 Bd5 18.Ncd2 (18.Nfd2 Rad8=) 18...Rad8 (18...c4!? 19.Bc2 Rad8=) 19.c4+= Ba8 20.h4 Nf5 (20...Rd7!? 21.h5 Rfd8=) 21.Bf5+= ef5 22.h5 f4 23.Qe2 (23.Qc3 Ne7+=) 23...Ne7= 24.h6 Ng6 25.hg7 Kg7 26.Ne4 Ne5 27.Nh4 (27.Ne5 Qe5 28.Qg4 Kh8=) 27...f6 28.Nd6 (better 28.Nf5!? Kh8 29.f3=+) 28...Kh8-/+ (28...Rd6?! 29.Rd6 Bg2 30.Rad1=) 29.Ndf5 Rg8 (29...f3 30.Nf3 Nf3 31.gf3 Rde8-+) 30.Qh5? (30.f3!?-/+) 30...Rd1 (better 30...Rg5!? 31.Rd8 Qd8-+) 31.Rd1 Qb7 (31...Qc6 32.f3 Nf3 33.Nf3 Qf3 34.Qf3 Bf3-+) 32.f3? (32.Kf1!? Qe4 33.Ne7-/+) 32...Nf3 (32...Qb2 33.Kh1 Bf3 34.Ng6 (34.gf3?? Nd3 35.Ng6 Rg6-+) 34...Ng6 35.Qf3-+) 33.Nf3 Qf3 34.Qf3 Bf3 35.Rd6 (35.Rd2 Be4 36.Nd6-+) 35...Bg2 36.Rf6 (36.Kf2 Be4 37.Rf6 Rg2 38.Ke1 Bd3-+) 36...Bd5 37.Kf2 Bc4 38.a3 Bd3 39.Ne7 Re8 (39...Rg5 40.Rf4 c4 41.Nc6-+) 40.Nd5 f3! 41.Nc7 (41.Kf3 Be4 Double attack; 41.Rf3 Be4 Double attack (41...Be4 Decoy)) 41...Rc8 42.Rc6 Be4 (42...c4 43.Kf3 Kg8 44.Nd5 Rc6 45.Ne7 Kg7 46.Nc6-+) 43.Rc5 Bb7 44.a4 Kg8 (44...Rg8 45.Kf1-+) 45.Rg5 (45.Ne6 Rc5 46.Nc5 Bc6-+) 45...Kf7 46.Nb5 (46.Rc5 h6-+) 46...Rc2 47.Kf1 Kf6 48.Rg4 Bd5 49.Rf4 Ke5 50.Rf8 a6 51.Re8 Kf4 52.Nd6 Rc6 53.Rf8 Ke5 54.Nf5 Rc1 55.Kf2 Rc2 56.Kg3 Rg2 57.Kh4 Rg8 58.Rg8 Bg8 (58...Kf5?! 59.Rg5 Ke4 60.Kg3=) 59.Ne3 (59.Ng3 Kf4 60.a5 f2-+) 59…Kf4 (59...Kf4 60.Nd1 Bb3-+) 0-1. Riha,Vojtech (2130) - Docekal,J (2300), TCh-CZE, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

8.Re1 a6 9.Ng5 (9.Ba3 Ba3 10.Na3 b5+=) 9...Nb4 (better 9...Nd5!? 10.Ne4 Be7 11.Nd6 Bd6 12.ed6 Qd6=) 10.Ne4+= (worse 10.Bh7 Ned5 11.Qh5 g6-/+) 10...Nd3 11.cd3 Ba7 (11...Qa5!?+=) 12.Nd6+- Kf8 13.Qh5 g6? (better 13...Ng6!?+-) 14.Qg5 h5 (14...Kg8 15.Ba3 Nc6 16.Qf4+-) 15.Qf6 Rh7 16.Ba3 Qd7 17.Nf7 Kg8 18.Ng5 (18.Qe7?! Qe7 19.Be7 Rf7+=; 18.Be7? Rf7 19.Qg6 Rg7 20.Qh5 Qe7-+ (20...Re7?! 21.Re4=+)) 18...Rg7 19.Re4 (better 19.Ne4!? Kh8 20.Qg5+-) 19...b5 20.Rf4 (20.Re1 Bb6+-) 20...Bb7 21.h4 (21.Be7!? Qe7 22.Ne6 (22.Qe6?! Qe6 23.Ne6 Re7=) 22...Qf6 23.Rf6+- (23.ef6?! Rf7 24.Na3 Bb8=)) 21...Bd5+= 22.Qg7 (22.Ne4!?+=) 22...Kg7= 23.Rf7 Kg8 24.Re7 Qd8 25.f4 Bb6 26.Bd6? (better 26.Nh7 Qe7 27.Be7 Kh7 28.a4=) 26...Ra7-+ 27.Ra7 (27.Ne6?? Qc8 28.f5 Re7 29.Be7 Be6 30.fe6 Qc1 31.Kh2 Qb2-+) 27...Ba7 28.Na3 Qc8 29.Ne4 (29.Kf2 Bb6-+) 29...Kg7 (29...Be4 30.de4 d3 31.Kh2-+) 30.Rf1? (better 30.Nf6-+) 30...Qc6 31.Re1 a5 32.Rb1 (32.Kf2-+) 32...Be4 33.de4 d3 34.Kh2 b4 35.f5 (35.Bb4 ab4 36.Rb4 Qc5-+) 35...gf5 36.ef5 ef5 37.Rb3 (37.Be7 ba3 38.Bg5-+) 37...Qe4 38.Nb5 Qh4 0–1. Termeulen,Albert (2145) – Den Boer,Paul (1975), It, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6 7.0-0 Nge7)

8.Re1 Nb4 9.Be4 Nf5 (9...d3 10.cd3 Nd3 11.Bd3 Qd3 12.Ba3=) 10.Ba3 0-0 11.c3 dc3 12.Nc3 Qa5 (12...a5 13.Bb4 ab4 14.Ne2+=) 13.Qa4+- Qa4 14.Na4 Be7 15.g4 (15.Bb4 Bb4 16.Reb1+-) 15...Bd7? (better 15...Nd5!?+=) 16.Rab1 (16.Bb4 Ba4 17.Reb1 a5+-) 16...Nd5 17.Nc5 (17.gf5?! Ba3 18.Rb3 Ba4 19.Ra3 Bc6+-) 17...Bc5 18.Bc5 Rfc8 19.Rb7 Rc5 20.Rd7 (20.gf5?! Bc8 21.d4 Ra5+-) 20...Nh6 21.h3 (21.g5 Nf5+-) 21...a5 (21...Nb6 22.d4 Ra5 23.Rc7+-) 22.Rb1 Rf8 23.Rbb7 Nf4 24.Kh2 g6 25.d4 Rc3 26.Ng5 (26.Rb2 Nd3 27.Bd3 Rd3+-) 26...Rfc8 (26...Nh3 27.Nh3 Ng4 28.Kg2 Rh3+-) 27.f3 Rf8 28.Rb2 a4 (28...Nd3 29.Rb5 a4 30.Ra7+-) 29.Kg3 Nd3 (29...a3 30.Rd2 (30.Kf4?! ab2 31.Rb7 Rd8+=) 30...Nd5 31.Bd5 ed5 32.Rd5+-) 30.Rbb7 1–0. Christensen,Bo Garner (2275) – Lowenstein,Nicolai (2190), 50th Danish Championship XtraCon, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6 7.0-0 Nge7)

8.Re1 Bd7 9.g3 (9.Ba3 Qa5 10.Bc5 Qc5=) 9...Qc7 10.c3 Nd5 11.Ba3 b6 12.Bc5 bc5 13.Na3 dc3 14.Nb5 Qa5 15.Nd6 Ke7 16.dc3 Nc3 17.Qd2 Nd5 18.Qg5 Kf8 19.Qh5 Be8 20.Ng5 (20.Bh7?! Rb8=) 20...Qc7 21.Rab1 (21.Nh7?! Kg8=) 21...Nb6 22.Bb5 (22.Nh7?! Rh7 23.Bh7 g6 24.Qh6 Ke7 25.Qg5 Kf8+-) 22...h6 23.Ne8 Re8 24.Bc6 g6 25.Qf3 hg5 26.Be8 Ke8 27.Red1 Qe7?? (better is 27...g4 28.Qe4 Rh5+/-) 28.Qa8!! (28.Qa8 Na8 29.Rb8 Qd8 30.Rbd8 Ke7 31.R1d7) 1–0. Martorell Aguado,Joan (2230) – Ribera Nebot,Joan (2175), Barcelona ESP, 3rd San Marti Open, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

8.Re1 Ng6 9.Ba3 Qe7 10.Bc5 Qc5 Now all is on e5 11.c3 Nge5=+ 12.cd4 Nf3 13.Qf3 Qd4 14.Nc3 0-0 15.Nb5 Qd8 16.Be4 Nd4 17.Nd4 Qd4 18.Bb7 (18.Rab1 Rb8=+) 18...Bb7-/+ 19.Qb7 Qd2 20.Red1 Qf4 21.a4 (21.Rd7 a5=+) 21...a5-/+ 22.g3 Qf6 23.Rab1 g6 (23...Rac8 24.Qa7-/+) 24.Rb5=+ Kg7 25.Kg2 Qc3 26.Qe4 Rad8 27.Re1 Kg8 28.Re3 Qc7 29.Qe5 Qc6 30.Qe4 Qc7 (30...Qe4 31.Re4 Rd5 32.Re5 Re5 33.Re5=+) 31.Qe5= Qc6 32.Qe4 Qe4 33.Re4 Rd5 34.Rd5 (34.Re5 Re5 35.Re5 Ra8=+) 34...ed5-/+ 35.Re7 Rc8 36.Ra7 Rc5 37.Kf3 Kg7 38.Ra6 g5 39.Kg4 Rc4 40.Kg5 Ra4 41.f4 h5 (better 41...d4!?=+) 42.f5+= f6 (better 42...Kf8!?+=) 43.Kh5+/- d4 44.Ra7 Kf8 45.Kg6 Ke8 46.Kf6 d3 47.Re7 Kd8 48.Re1 d2 49.Rd1 Rd4 50.Kg7 (50.h4!? Rd6 51.Kf7 Rd7 52.Kf8 Rd6+-) 50...Rd7 51.Kf8 a4? (51...Rd6 52.g4 a4+-) 52.f6+- a3 53.f7 Rd4 (53...Kc7 54.Kg8 Rd8 55.f8Q Rf8 56.Kf8+-) 54.h3 (better 54.Kg7 Rd7 55.Kg8 Kc7+-) 54...Rd3 55.g4 a2 (55...Kc7 56.Kg8 Rd8 57.f8Q Rf8 58.Kf8+-) 56.Kg7 (56.Kg7 a1Q 57.Ra1+-) 1-0. Pires,E (2110) - Stella,A (2465), Portugal Open, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

8.Re1 Ng6 9.Na3 0-0=.

8.Re1 Ng6 9.g3 0-0=+ 10.Ba3 Qa5 11.Bc5 Qc5 e5 becomes the focus of attention 12.c3 Bd7 13.Qe2 Rfd8 14.h4 dc3 15.dc3 (15.h5 Nge7 16.Nc3 Nd4 17.Nd4 Qd4=+) 15...Be8=+ 16.Bc2 Nce7 17.h5 Nf8 (17...Bb5 18.Qe3 Qe3 19.Re3=) 18.Nbd2 Rac8 19.Ne4 (19.Rac1 Bc6= (19...Qc3? 20.Bh7 Nh7 21.Rc3 Rc3 22.Ne4+-)) 19...Qc4 (better 19...Bb5!? 20.Nc5 Be2 21.Re2 Rc5=+) 20.Qe3+= Nd5 The isolani on c3 becomes a target 21.Qa7 Nc3 22.Qe3?? (better 22.Nc3 Qc3 23.Be4+=) 22...Nd5-+ 23.Qg5 Qc2 24.h6 Ng6 25.hg7 Kg7 26.Rad1? (26.Nd6 h6 27.Qg4 Rc7-+) 26...Qa2 (26...h6 27.Qd2-+) 27.Nf6? (27.Nd6-+) 27...Qc2 (better 27...h6!? 28.Nh5 Kh7 29.Qg4-+) 28.Nd4?? (28.Nh5 Kf8 29.Qh6 Ke7 30.Qg5 Kf8 31.Qh6 Ke7 32.Qg5 Kf8=) 28...Qc7?? (28...Qc5 29.Re4 h6 30.Qg6 fg6 31.Ne6 Kf7 32.Nc5 Rc5 33.Rh4-+) 29.Ng4?? (better 29.Nh5 Kf8 30.Qh6 Ke7 31.Qg5 Kf8 32.Qh6 Ke7 33.Qg5 Kf8=) 29...Qe7-+ 30.Qh6 Kg8 (better 30...Kh8 31.Nf3 Qf8 32.Qh2-+) 31.Kg2 (31.Nf3 f5 32.ef6 Nf6 33.Rd8 Rd8 34.Nf6 Qf6 35.Ng5-+) 31...Qf8 32.Qg5 Qg7 (32...h5 33.Nh6 Kh7 34.Nhf5 ef5 35.Nf5-+) 33.Nh6 (33.Rh1 Nge7 34.Qh4 Qg6-+) 33...Kh8 34.Rh1 (34.Kg1-+) 34...Ngf4! 35.gf4 Nf4 36.Kf3 (36.Kh2 Qg5 37.Ng4 Qg4 38.Ne6 Qg2) 36...Qg5 37.Rdg1 (37.Nf7 Bf7 38.Rh7 Kh7 39.Rh1 Kg7 40.Rh7 Kh7 41.Ke3 Qe5 42.Kf3 Rg8 43.Ne6 Rc3) 37...Rc3 38.Ke4 Ng2 (38...Ng2 39.Nf7 Bf7 40.Rh7 Kh7 41.Rh1 Kg6 42.Rh6 Kh6 43.Ne6 Bg6; 38...Rd4 39.Kd4 Ne2 40.Ke4 Bc6) 0–1. Vogiatzis,Dimitrios (1955) – Langensteiner,Matthias (1890), Landesliga Nord, 2006. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6 7.0-0 Nge7)

8.Qe2 Ng6 9.Na3 Nf4 10.Qe4 Nd3 11.cd3 Qd5+=.

8.Qe2 Ng6 9.Qe4 0-0=+ 10.Ba3 Qa5 11.Bc5 Qc5 Increases the pressure on e5 12.Re1 f5 13.ef6 Rf6 14.a4 (14.c3 Rf4 15.Qe2 Rg4 16.Bg6 Rg6 17.cd4 Nd4 18.Nd4 Qd4=) 14...e5-/+ 15.Na3 Be6 (15...Bf5!? 16.Bc4 Kh8-/+) 16.Ng5= Bd5 17.Qd5 Qd5 18.Bc4 Rd8 19.Bd5 Rd5 20.d3 h6 21.Ne4 Rf8 22.Nc4 b6 23.Rab1 Na5 24.Ncd6 Rd8 25.Nb5 R8d7 26.g3 ½–½. Craft,Isaac (1790) – Lock,Gavin R (2175), E2e4. Org. uk Brighton Challengers C, 2011. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6)

8.Qe2 Ng6 9.g3 0-0 10.h4 f5 (10...Qc7 11.Re1=) 11.ef6 Qf6 12.Ng5 Nce5 13.Qh5 (13.f4 Nd3 14.Ne4 Qf5 15.cd3 e5+=) 13...h6+= 14.Bg6 Qg6 15.Qg6 Ng6 16.Ne4 Bb6 17.Na3 Ne5 (17...Bd7 18.d3+=) 18.f4= Ng4 19.Nc4 Bd7 20.Ba3 (20.Re1 Bc6=) 20...Rfc8+= 21.d3 (21.Ned6 Rc6 22.d3 Ne3+=) 21...Rc4 (21...Ne3!? 22.Ne3 de3-/+) 22.dc4= Bc6 23.Nd6 Ba5 (better is 23...d3!? 24.c5 Ba5=) 24.Rab1+/- Bd2 (24...Ne3 25.Rf2+= (worse is 25.Nb7 Bb6 26.c5 Nf1 27.Kf1 Bb7 28.cb6 ab6 29.Rb6 Ra3 30.Rb7 Rg3=)) 25.Bc1 Be3 (25...Bc3!? 26.Rb3 a5+/-) 26.Be3+- de3 (26...Ne3 27.Rfe1 b6 28.Rbc1+-) 27.c5 (better is 27.Nb7!? Kh7+-) 27...Rd8 28.Rfe1 (28.Nb7?? Rd2 29.Rf3 Bf3 30.Nd6 Rg2 31.Kf1 Nh2 32.Ke1 Rg1) 28...b6 (28...Rd7+-) 29.Nc4 bc5 30.Ne3 Ne3 (30...Nf6 31.Red1 Re8 32.Rd6+-) 31.Re3 Rd2 (31...Bd5 32.Rb5 c4 33.Ra5+-) 32.Rb8 (32.Re6 Bd7 33.Rb8 Kf7+-) 32...Kf7 33.Rc8 Bd5 34.Rc5 Ba2 (34...Kf6 35.Rd3 Re2 36.Ra3+-) 35.c4 (35.Rd3 Rd3 36.cd3 Bb1+-) 35...Rc2 (35...a6 36.Rc3+-) 36.Ra3 Rc4 (36...Kf6 37.Ra7 Bc4 38.g4 Rc1 39.Kh2 Rc2 40.Kg3 Rc3 41.Kf2 Rc2 42.Ke3 Re2 43.Kf3+-) 37.Ra7 (37.Ra2?! Rc5 38.Ra7 Kf6=) 37...Kf6 38.Rc4 (38.Ra2?! Rc5 39.Kh2 g5=) 38...Bc4 39.Kf2 (better is 39.g4+-) 39...g5?? (39...h5+-) 40.fg5 hg5 (40...Kg6 41.gh6 Kh6 42.g4+-) 41.h5 1–0. Van den Berg,B (2200) – Woestenburg,Jochem (2070), 8th OGD Prinsenstad, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

8.Qe2 h6 9.Ba3 Qa5 10.Bc5 Qc5 11.c3 Bd7 12.Qe4 dc3 13.Nc3 Nf5 14.Rab1 Rb8 (14...Ncd4 A) 15.Rb7? Bc6 16.Na4 Qa5-+ (16...Be4?! 17.Nc5 Nf3 18.gf3 Bb7 19.Nb7-+; worse 16...Ba4 17.Nd4 Nd4 18.Rb4+-); B) 15.Qb7?! Bc6 16.Qb4 Nf3 17.gf3 Qe5+=; C) 15.Nd4 Nd4 C1) worse 16.Rb7 Bc6 17.Na4 Be4 (worse 17...Ba4 18.Rb4 Bc6 19.Qd4 Qd4 20.Rd4+-) 18.Nc5 Bb7 19.Nb7 0-0-/+; C2) 16.Qb7+-) 15.Nb5+- a6 (15...h5 16.Rfc1 Qb6 17.h3+-) 16.Rfc1 Qe7? (better 16...Qf8 17.Nbd4 Nfd4 18.Nd4 Rc8+-) 17.Nc7 Kd8 18.Na6! ba6 19.Rb8 Nb8 20.Qb7 Nc6 (20...Ke8 21.Qb8 Qd8+-) 21.Bf5 (21.Qa8 Kc7 22.Qh8 Qd8+-) 21...ef5?? (better 21...Qb4 22.Qa8 Qb8 23.Qb8 Nb8+-) 22.Qa8 (22.Rc6?! Bc6 23.Qb8 Kd7 24.Qh8 Qc5=) 22...Kc7 23.Qh8 Qa3 24.Re1 (24.Rc3 Qa2 25.h4 g6+-) 24...Nb4 (24...g6 25.Qh6 Be6 26.Qg7+-) 25.e6 (25.Qg7 Nd3 26.Rf1 Qa2 27.Qh6 Qe6+-) 25...Be6 (25...fe6 26.Qg7 Nc6 27.d4+-) 26.Qg7 Nd3 (26...Qa2 27.Nd4 Kb6 28.Qf8+-) 27.Rf1 (better 27.Re6 Qc1 28.Ne1 Qe1 29.Re1 Ne1 30.Qf7 Kd6 31.Qf5+-) 27...Qd6 (27...Ba2 28.Qh6 f4 29.h4+-) 28.Qc3 Kd7 (28...Kd8 29.Rb1+-) 29.Rb1 (29.Rb1 Kd8 30.Rb7+-) 1–0. Rahls,Peter (2205) – Heinsohn,Michael, Oberliga Nord O9899, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Nc6)

6.Bd3 Ne7

7.0-0 h6 8.Qe2 Bd7 9.Ba3 Qc7 10.Bc5 Qc5 11.c3 Nbc6 12.Qe4 dc3 13.Nc3 a6 14.Rab1 b5 15.Rfc1 Qa7 (better 15...Qa3+-) 16.Bb5 (better 16.Ne2+-) 16...ab5= 17.Nb5 Qa5 18.Nd6 Kf8 19.g4 (19.Rb7 Ra7 20.Rcb1 Nd8=) 19...g5 20.Rb7 Qd8 (20...Ra7 21.Rcb1=+) 21.h4 Nd5?? (better 21...gh4 22.Nh4 Rg8=+) 22.Rc6+- f5 (22...Rb8 23.Nf7! Kf7 24.Re6 A) 24...Ke6?? 25.Nd4 Ke7 26.Nc6 (26.Qd5?! Rb7 27.Qb7 Kf8+=) 26...Kf8 27.Rb8 Qb8 28.Nb8+-; B) 24...Rb7?? 25.Qf5 Nf6 26.Rf6 Qf6 27.Qf6 Kg8 28.Qg6 Kf8 29.e6 Be6 30.Qe6+-; C) 24...Ne7+-) 23.ef6! Nf4 (23...Nf6 24.hg5 Decoy (24.hg5 Interception); 23...Qf6 24.Rd7 Deflection) 24.Rcc7 Be8 (24...Nh3 25.Kf1 Qf6 26.Rd7 Qa1 27.Rb1 Qb1 28.Qb1 Nf4 29.Qb7 Re8 30.Rg7 gh4 31.Qf7) 25.Ne8 Ke8 (25...Qc7 26.Nc7 Re8 27.Qb4 Kg8 28.f7 Kh7 29.Qe4 Ng6 30.fe8R Re8 31.Ne8 Kh8 32.Qg6 gh4 33.Qg7) 26.Qc6 (26.Qc6 Kf8 27.Rf7 Kg8 28.Rg7 Kf8 29.Rbf7) 1–0. Ojer Lora,Iker (2020) – Garrido Lasheras,David (2005), Championship Navarro por Equipos PREFER, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Ba3 Qa5 8.Bc5 Qc5 9.0-0 Nbc6 10.Re1 Ng6 The pressure on e5 grows (10...0-0 11.c3=) 11.Bg6 hg6 12.d3 Rh5 13.Nbd2 Ne5 14.Ne5 (14.Re5 Re5 15.Nb3 Qd6 16.Ne5 Qe5=) 14...Re5 15.Re5 Qe5 16.Qf3 Rb8 (16...Kf8 17.Nb3+=) 17.Nc4= Qc7 18.Qe4 b5 19.Ne5 Qc5?? (better is 19...Rb7=) 20.Nf7!+- Qc7 (20...Kf7 21.Qf4 Double attack) 21.Ne5 Bb7 (21...Rb7 22.Rc1 Qc5 23.Re1+-) 22.Qg6 Kf8 (22...Kd8 23.Qe6 Qe7 24.Nf7 Ke8+-) 23.Qe6 g5 (23...g6 24.Re1 Bd5 25.Nd7 Kg7 26.Qf6 Kh6 27.Re7 Qh2 28.Kh2 Bf7 29.Rf7 Kh5 30.Rh7 Kg4 31.Ne5) 24.Nd7 (24.Nd7 Qd7 25.Qd7+-) 1–0. Steinhauser,Thomas (2100) – Kuhn,Norbert (2045), Regionalliga NW, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Ba3 Qa5 8.Bc5 Qc5 9.c3 Nbc6 10.Qa4 Bd7 11.cd4 Qb6 (11...Nd4 12.Qd4 Qc1 13.Ke2 Qh1 14.Na3 Qg2 15.Rg1=+) 12.Qb3 (12.Bb5 a6 13.Nc3 Rd8 14.Bc6 Bc6=+) 12...Nd4=+ 13.Qb6 Nf3 (13...ab6? 14.Nd4 Ra5 15.Nc3 Re5 16.Be2+-) 14.gf3 ab6 15.Nc3 Bc6 (15...Ng6 16.Be4=+) 16.Be4 f5 (16...0-0 17.Ke2=+) 17.ef6= gf6 18.Rb1 Ra6 19.Bd3 Ra5 20.Rb6 Bf3 21.Rg1 Kf7 22.Be4? (better 22.Rg3 Re5 23.Kf1=) 22...Re5-+ 23.Rg3 (23.d3 f5 24.Rg3 fe4 (worse 24...Be4 25.de4 Nd5 26.Rb7 Kf6 27.Rgg7=) 25.de4 Re4 (25...Be4?! 26.Re3=) 26.Ne4 Be4-+) 23...Re4 (23...Be4?! 24.d4 Nf5 25.de5 Ng3 26.fg3=) 24.Ne4 Be4 25.a4 Bc6 26.a5 Nd5 27.Rb2 f5 (27...Ra8 28.Ra2-+) 28.d4 Ra8 29.Rh3 Nf6 (29...Nf4 30.Ra3-+) 30.Ra3 Ra6 (30...Ke7 31.f3-+) 31.Ke2 Be4 32.Ke3 Rd6 (32...Ra8 33.Rb5-+) 33.f3 Bd5 34.Kf4 (34.Ra1 Ra6-+) 34...Ra6 35.h4 (35.Rb1 Bc6-+) 35...Bc6 36.Kg5 (36.Ke5 Nd5-+) 36...Ra8 37.Rba2?? (37.Rb1-+) 37...Nd5 38.h5 Rg8 39.Kh4 Bb5 (better 39...Nf4 40.d5 Bd5-+) 40.Rb3 (40.Rb2 Ba6-+) 40...Ba6 41.Rc2 (41.Rab2 f4 42.Kh3 Kf6-+) 41...Kf6 42.Rbb2 (42.Kh3 Be2! 43.Rc1 Nf4 44.Kh2 Rg2 45.Kh1 Rf2-+) 42...Rd8 (better 42...Ne3 43.Rc5 f4 44.Kh3-+) 43.Kg3 (43.h6 Nf4-+) 43...Kf7 (43...f4!? 44.Kh3-+) 44.Kh4 (44.Rc1 f4 45.Kh3 Kf6-+) 44...Rd7 (44...Ne7 45.Kg5-+) 45.Kg5 Ne7 46.Kh6?? (46.Rg2 Bc4-+) 46...Bf1 (better 46...Kf6 47.Rg2 f4-+) 47.Rf2?? (47.a6 Ba6 48.f4-+) 47...Kf6 48.Kh7 (48.Rg2 Bg2 49.Rg2-+) 48...Ng6 49.Kh6 Nf8 (49...Nf8 50.Rb7 Rb7 51.Rf1 Rh7) 0–1. Lenier,Jude A (2015) – Poobalasingam,Peter S (2260), e2e4 Gatwick Masters B, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

7.Be4 Nbc6 8.0-0 Ng6 9.Bc6 bc6 10.d3 Qd5 (better 10...Rb8!?=+) 11.c4+= dc3 12.Nc3 Qd7 13.Ne4 (13.Qa4 0-0 14.Rd1 Rb8+=) 13...Be7 14.Qc2 (14.Qa4 0-0+=) 14...0-0= 15.Be3 Ba6 Attacks the backward pawn on d3 16.Rfd1 Rfd8 17.d4 Qd5 18.a4 (18.Rab1 Rab8=) 18...Rac8 (18...Qc4 19.Rac1 Qc2 20.Rc2=) 19.Rdc1 c5 20.Nc5 Bc5 21.dc5 Bd3 22.Qa2 Qa8 23.Nd4 (23.Rd1 Rd5+=) 23...Ne5 (better 23...Qe4 24.Nf3 Ne5 25.Ne5 Qe5=) 24.Ne6?? (better 24.f3=) 24...fe6-+ 25.Qe6 Nf7 26.h4 (26.Bf4 Rd4 27.Qe3 Qd5-+) 26...Rc6 27.Qb3 Rg6 28.g3? (28.Bg5 Kf8-+) 28...Be4 (better 28...Qf3 29.Bg5 h6-+) 29.Kh2 Bd5 30.Qc3 Qc8 (30...Qc8 31.Bf4 Qf5-+) 0–1. Joba,Arpad (2035) – Karas,Marek (2305), MSR Deti a Mladeze CH20 a CH18, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5 6.Bd3 Ne7)

7.0-0 Nbc6

8.Ba3 Qa5 9.Bb2 (9.Bc5 Qc5 10.Re1 0-0=) 9...Ng6 10.Bg6 hg6 11.d3 Qc7 12.Re1 Bd7 (12...g5 13.Ba3 g4 14.Bc5 gf3 15.Bd6= (worse 15.gf3 Ne5 16.Bd4 Ng6-/+)) 13.Nbd2 Bb4 (13...Rh5 14.c3=) 14.Nd4 (worse 14.Bd4 Nd4 15.Nd4 Bc3=+) 14...Ne5 (14...Nd4 15.Bd4 Ba4 16.a3 Bc2 17.Rc1+-) 15.Ne6!+- Be6 (15...Be6 16.Be5 Discovered attack; 15...fe6 16.Be5 Discovered attack) 16.Be5 (16.Re5?! Bd6 17.Nc4 Be5 18.Be5 Qc6=+) 16...Bd6 17.Bd6 Qd6 18.Nf1 Rc8 (18...0-0-0 19.Rb1+-) 19.Rb1 Rc7 20.c4 Rh4 (20...Kd8!?+-) 21.Qa4+- Ke7 (21...Qd7 22.Qa7 Qd3 23.Ne3+-) 22.Qa7 b5 (22...Qd3 23.Ne3 Qd6 24.g3+-) 23.Qe3 Rd4 24.cb5 Rd3 25.Qg5 Kf8 26.a4 Rc5 27.Qh4 Kg8 28.b6 Qb8 (28...g5 29.Qb4 Rdd5 30.a5+-) 29.Qe7 Ra5 30.Qc7 Rd8 31.Rb4 Kf8 32.Qc3 (32.Rc1 Rc8 33.Qb8 Rb8+-) 32...Qb7 33.Rf4 (33.Re5 Raa8+-) 33...Rf5 (33...Rg5 34.Qb4 Kg8 35.Ne3+-) 34.Rf5 gf5 35.a5 Qa6 (35...Rc8 36.Qe5+-) 36.Rb1 Rc8 (36...Rb8 37.Qc7 Qa8 38.a6+-) 37.Qb4 (37.Qe5 Qd3 38.b7 Qb1 39.bc8R Bc8 40.Qc5 Kg8 41.Qc8 Kh7+-) 37...Kg8 (37...Ke8 38.Qb5 Qb5 39.Rb5+-) 38.b7 Rb8 39.Qb6 Qd3 (39...Qb6 40.Rb6 Bc4+-) 40.a6 (40.a6 Bd5 41.a7 Rb7 42.a8Q Kh7 43.Qbb7 Bb7 44.Rb7+-) 1–0. Nitish,Belurkar (2265) – Van Vliet,D (2085), 4th Prague Summer Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

8.Na3 b6 9.Re1 Bb7 10.Ng5 (10.Be4 Rc8=) 10...Ng6=+ 11.Qh5 (11.Bg6 Qg5 12.Be4 0-0=+) 11...Qe7-/+ (11...Nce5 12.Ne6 fe6 13.Re5=) 12.Nb5 (12.Nh7 Nge5 (12...Ba3?! 13.Ba3 Qa3 14.Bg6 fg6 15.Qg6 Kd7 16.Qg7 Ne7 17.Nf6 Kc7 18.Qf7=+) 13.Re5 g6 14.Bg6 0-0-0 15.Rc5 fg6-/+) 12...Nf4 (worse 12...Nge5 13.Ne6 g6 14.Nec7 Kd8 15.Qd1=) 13.Nd6 Bd6 14.ed6 Qd7 (14...Qf6!? 15.Qg4 Nd3 16.cd3 h5-/+) 15.Qf3=+ Nd3 (worse 15...Qd6 16.g3+-) 16.Qd3 Qd6 17.Ba3 (17.Qf5 Qd7 18.Ba3-/+) 17...Qd5 (17...Qf4!? 18.Ne4 Rd8-/+) 18.Qg3= (18.Nh7?? Qh5-+) 18...Ne7 (better 18...Rg8!?=) 19.Be7+- Ke7 (better 19...Qg2 20.Qg2 Bg2+-) 20.Re5?? (better 20.Qc7!? Qd7 21.Ne6 Qc7 22.Nc7 Kf6 23.Na8 Ra8 24.c4+-) 20...Qc6 (20...Qc4!?=+) 21.Rae1= h6?? (better 21...Rhf8=) 22.Ne6!+- Qg2 (22...fe6 23.Qh4 Double attack (23.Qh4 Decoy)) 23.Qg2 Bg2 24.Nd4 (24.Nd4 Kf6 25.Kg2+-; 24.Kg2?! fe6 25.Re6 Kf7 26.Re7 Kg6 27.R1e6 Kf5 28.Re5 Kg6=) 1–0. Vallejo,Humberto (2055) – Builes Palacio,Santiago (1755), 12th American Continental, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

8.Re1 Bd7 9.Ba3 Qa5 10.Bc5 Qc5 11.c3 Ng6 Now all is on e5 12.Bg6 hg6 13.cd4 (better 13.Qc1!?=) 13...Nd4-/+ 14.Nd4 Qd4 15.Nc3 Bc6 16.Qe2 (16.h3 Rd8-/+) 16...Rd8 (better 16...Qh4 17.f3 Qh2 18.Kf2 Qh4 19.Kg1 0-0-0-+) 17.Nb5?? (better 17.h3-/+) 17...Qh4-+ 18.h3 (18.f3 Qh2 19.Kf2 Rh3 20.Nd6 Rd6 21.ed6 Rf3 22.Qf3 Bf3 23.Kf3 Qd6-+) 18...Bg2 19.Nd6 (19.Nc7 Ke7 20.Qe3-+ (20.Kg2?? Qh3 21.Kg1 Qh1)) 19...Rd6! 20.ed6 Qh3 21.d7 (21.f3 Bf3 22.Qb5 Bc6 23.d7 Kd7 24.Qc6 bc6 25.Kf2 Qh2 26.Kf1 Qf4 27.Ke2 Rh2 28.Kd3 Rd2 29.Kc3 Qd4 30.Kb3 Rb2 31.Ka3 Qb4) 21...Kd8 22.f4 (22.f3 Bf3 23.Kf2 Qg2 24.Ke3 Be2 25.Kd4 Rh3 26.d3 Rd3 27.Kc5 Qe4 28.Rad1 Rc3 29.Kd6 Qf4) 22...Bf3 (22...Bf3 23.Kf2 Qg2 24.Ke3 Be2 25.Rf1 Rh3 26.Rf3 Qf3 27.Kd4 Qd5; 22...Qh2 23.Kf2 Qf4 24.Kg1 Rh1 25.Kg2 Rh2 26.Kg1 Qg3 27.Qg2 Qg2) 0–1. Gula,Andrzej (1980) – Cymbala,Ireneusz (1990), 1st Ogolnopolski Festiwal Szachowy, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

8.Qe2 Qc7 9.Na3 (9.Ba3 Qa5 10.Bc5 Qc5=) 9...a6= 10.c3 (10.Bb2 Ng6 11.Bg6 hg6=) 10...dc3 (10...Nd5 11.Qe1=+) 11.dc3= b5 12.Nc2 Bb7 (12...Nd5 13.Bd2=) 13.a4 ba4 14.Ra4 Ng6 The pressure on e5 grows 15.Re1 0-0 16.h4 (16.Bg6 hg6 17.Ba3 Na5+=) 16...Rad8 (16...Rfd8 17.Bg6 hg6 18.Ba3 Ba3 19.Ra3=) 17.Be4 (17.Ba6 Ba6 18.Ra6 Ra8 19.Ra8 Ra8+=) 17...f5 (better 17...Nge5 18.Ne5 Ne5=) 18.ef6+/- gf6 19.Bg6 (19.Ncd4 Bd4 20.cd4 Rfe8+/-) 19...hg6+= 20.Qe6 Qf7 21.Qg4 (21.Qf7!? Kf7 22.Ba3 Ba3 23.Ra3+=) 21...Ne5= 22.Ne5 fe5 23.Be3 (23.Re5?? Qf2 24.Kh2 Qg1 25.Kh3 Qh1 26.Kg3 Qg2) 23...Be3 24.Ne3 Qf2 25.Kh2 Rd6 (25...Qe1?? 26.Qg6 Kh8 27.Qh6 Kg8 28.Rg4 Kf7 29.Rg7 Ke8 30.Qe6) 26.Re2 Qf6 27.Rb4 Bc8 (27...Bc6 28.Qg3 e4 29.Ng4+=) 28.Qg3 Rd3 29.Re4 Exerts pressure on the isolated pawn (29.Rf2 Qf2 30.Qg6 Kh8 31.Qd3 Rg8=) 29...Re8= (29...Rc3? 30.Nd5 (30.Qe5?! Qe5 31.Re5 Kg7=; 30.Re5?! Qf4=) 30...Rg3 31.Nf6 Kf7 32.Kg3 Kf6 33.Re5+-) 30.Ng4 The pressure on the isolated pawn grows 30...Bg4 31.Qg4 (31.Qd3 Be2 32.Qe2= (worse 32.Re2 Qh4 33.Kg1 Qf6-/+)) 31...Rc3=+ 32.Qd7 Qe6 (32...Rd8!? 33.Qg4 Rd5=+) 33.Qe6= Re6 34.Re5 Re5 35.Re5 Rc4 36.Re6 (36.g3 Ra4=) 36...Rh4 37.Kg3 Ra4 38.Rg6 Kf7 39.Rb6 Ke7 40.Kf3 Kf7 41.g4 Ra3 42.Kf4 Ra1 43.Kf5 Rf1 44.Kg5 a5 45.Ra6 Ra1 46.Kf5 a4 (46...Rf1 47.Ke4 Re1 48.Kd3=) 47.Ra7 Ke8 (47...Kf8 48.Kf6 Rf1 49.Kg6=) 48.g5 (48.Kf6 a3+=) 48...a3 49.Kg6 (49.Kf6 a2 50.Kg7 Rg1 51.Ra2 Rg5 52.Kf6 Rc5=) 49...a2 50.Kg7 Rg1 51.Ra8 (51.Ra2 Rg5 52.Kf6 Rc5=) 51...Kd7 52.Ra7 Kc6 53.Ra6 Kb5 54.Ra2 Rg5 55.Kf6 Rd5 56.Re2 Rc5 57.Re6 Rc4 58.Re5 Kb4 59.Rf5 Kb3 60.Kg5 Rc3 61.Rf4 Kc2 62.Kg4 Rd3 63.Rf2 Kc3 64.Rf3 Kc4 65.Rd3 Kd3 ½-½. Bortnyk,Olexandr (2595) - Erigaisi,Arjun (2555), Titled Arena Jan 2nd, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

8.Be4 h6 9.d3 Nd5 10.c4 dc3 11.d4 Be7 (11...Bb4 12.a3 Ba5 13.Bd5 Qd5 14.Qd3+=) 12.a3 Qa5 13.Ne1? (better is 13.Qb3=) 13...b6 14.Nc2 Ba6 15.Re1 0-0-0 16.Qf3 Rhf8 17.Bd5 Qd5 (17...Rd5?! 18.Nc3 Rd7 A) worse is 19.Qc6 Rc7 20.Qf3 Qc3 (20...Rc3?! 21.Ne3 Bb7 22.Qg4+=) 21.Qc3 Rc3-/+; B) 19.Bd2=; worse is 17...ed5 18.Nc3 Kb7 19.Rb1+/-) 18.Qd5 Rd5 19.Nc3 Rd7 20.Be3 Kb7 21.Rad1 Rfd8 22.Ne2? (better is 22.f3-+) 22...Ne5! 0–1. Heinis,V (2090) – Antonsen,M (2465), Politiken Cup, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4 5.bc5 Bc5)

5.bc5 Nc6

6.Ba3 Qa5 7.Bd3 Bc5 8.Bc5 Qc5 9.Qe2 b6?? 10.0-0= Bb7 11.a4 Nge7 12.Na3 Ng6 Will e5 fall? (12...0-0 13.Nb5 Rad8 14.Rfb1=) 13.Nc4 0-0 14.Bg6 hg6 15.Rfe1 (better 15.Nd6!? Rab8 16.Qe4+=) 15...Ba6=+ 16.d3 Bc4 17.dc4 Rfd8 18.Ng5 Rac8 19.Qe4 (19.Qf3 Qe7 20.Qf4=) 19...Kf8 (19...Qc4 20.Qh4 Ne7 21.Qh7 Kf8 22.Qh8 Ng8 23.a5 Qc2 24.ab6 ab6 25.Nh7 Ke7 26.Qg7=) 20.Qh4 (better 20.Qf4!? Qe7 21.Ra3+/-) 20...Ke8= 21.Qh8 Qf8 22.Qh4 Ne7 23.a5 Nf5 24.Qe4 (24.Qf4 Rc4 25.ab6 ab6=) 24...Qe7 25.Nf3 Rc4 26.ab6 ab6 27.Ra8 Rc7 (27...Ra8!? 28.Qa8 Qd8=+) 28.h3 (28.g4 Nh4 29.Nd4 Rc4+=) 28...Ra8 29.Qa8 Qd8 30.Qa4 Kf8 31.Qb4 Kg8 (31...Rc5!?=) 32.Qb6+= Qc8 33.Re2 (33.Nd4!? Nd4 34.Qd4 Rc2 35.Rd1+=) 33...Rb7= 34.Qa5 Rb1 35.Kh2 Rd1 (35...Rb8 36.Qd2+=) 36.Ng5 (36.Rd2!? Rd2 37.Qd2+/-) 36...Qd8?? (better 36...Ne7=) 37.Qd8 1-0. zsolti_83 (2425) - ErgRaider (2410), Rated Blitz game, lichess.org, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.a4 Bc5 7.Na3 (7.Ba3 Ba3 8.Na3 Nge7=) 7...Nge7 8.Nc4 0-0 9.Bd3 Ng6 (9...Nb4=+) 10.h4 (better 10.Bg6!? fg6 11.Ba3=+) 10...Nf4-/+ 11.Kf1 (11.Bf1 f6 12.g3 Ng6-/+) 11...Nd3-+ 12.cd3 b6 (12...f6 13.Qe2-+) 13.Ng5 (13.h5 f6-/+) 13...h6 14.Ne4 Bb7 (14...Qc7 15.Nc5 bc5 16.Ba3 Ne5 17.Ne5 Qe5 18.Qe1-+) 15.Qg4 Ne7 (15...Ba6 16.Qg3-/+) 16.Ba3 (better 16.Rh3=+) 16...Kh8?? (16...Be4 17.Qe4 Rc8 18.Kg1-/+) 17.Rh3?? (17.Nc5 bc5 18.Bc5 Qd7+/-) 17...Nf5 (17...Ba3!? 18.Ra3 Nf5=+) 18.Bc5 (18.Nc5!? bc5 19.Bc5+=) 18...bc5= 19.Ncd6 (19.Nc5!? Bd5 20.Rc1=) 19...Bd5 20.Rc1 Rb8 (20...Nd6 21.Nd6 f6 22.ef6 Qf6 23.f3=+) 21.Nf5 (21.Kg1!?=+) 21...ef5-/+ 22.Qf5 Be6 23.Qf3 Bh3 24.Qh3 Qe7 25.f4 Rb4 26.Rc5 Ra4 27.Rd5 (27.f5 Ra6-/+) 27...Ra1 28.Ke2 (28.Kf2 Qb4-/+) 28...Qa3 (better 28...Qb4-+) 29.Qg3?? (better 29.Rd4 Qc1 30.Rd7-/+) 29...Qc1-+ 30.Kf3 (30.Nf2 Qf1 31.Kf3-+) 30...Qd1 31.Kf2 Qe1 (31...Qf1) 32.Kf3-+ Qd1 33.Kf2 Ra2 (33...Qf1) 0-1. zsolti_83 (2410) - PchelkinVK (2480), Rated Bullet game, lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bb5 Bc5 7.Bc6 bc6 8.Ba3 Ba3 9.Na3 Ba6 10.Nb1 (10.c4 dc3 11.dc3 Qa5=) 10...Qa5 11.Qc1 Rb8 12.Kd1 Ne7 13.d3 Nd5 14.Qd2 Qb6 15.Ke2?? (better 15.Qc1-/+) 15...Qb2-+ 16.Qa5 (16.Nd4 Qa1 17.Nb3 Qe5 18.Kf3-+) 16...Qc2 17.Nbd2 Nc3 18.Kf1 Qd3 19.Kg1 Ne2 (19...Qf1 20.Rf1 Ne2) 20.Kf1 Ng3 21.Kg1 Qf1! 22.Nf1 (22.Rf1 Ne2 Mate attack; 22.Nf1 Ne2 Mate attack) 22…Ne2 0-1. Jenni,F (2455) - Ermolaev,An (2270), Titled Tuesday 6th Apr, 2021. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.c3 Bc5 7.Bd3 Nge7 8.0-0 Ng6 9.Re1 0-0 10.Ba3 Qe7 11.Bc5 Qc5 Will e5 fall? 12.Bg6 hg6 13.cd4 Nd4 14.Nc3 Nf3 15.Qf3 (worse 15.gf3 Rd8=+) 15...Bd7 (15...Rd8 16.Rac1+/-) 16.Qh3 (better 16.Qb7!? Rfd8 17.Rac1+/-) 16...Bc6+= 17.Qh4 Rad8 18.Rac1 (18.Re2 b5 19.a3 Rd3=) 18...Qd4 (18...Rd2 19.a3-/+) 19.Qg5 (19.Qd4 Rd4 20.Nb1 g5=) 19...Qd2=+ 20.Qh4 (better 20.Qd2!? Rd2 21.Rcd1-/+) 20...Rd4-+ 21.Qh3 Qg5 22.g3 Rfd8 23.Ne2 Re4 24.f4 Qe7 25.Qf1 (25.Rc2 Qb4 26.Qf1 Rd2 27.Rc6 bc6-+) 25...Qa3 (better 25...Rd2 26.Rc3-+) 26.Qf2?? (better 26.Rc2-+) 26...Rd2 (26...Qa2?! 27.Qf3 Qd5 28.Kf2-+) 27.h4 (27.Rcd1 Qa2 28.Rd2 Qd2 29.h3-+) 27…Ree2! (27...Ree2 28.Re2 Qc1 29.Qe1 Rd1-+) 0-1. Soubirou,O (2140) - Kirk,Ez (2445), ch-FRA Blitz Online Qual, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.c3 Bc5 7.cd4 Nd4 8.Nc3 Ne7 9.Nd4 (9.Bb2!? 0-0 10.Na4 Nf3 11.Qf3=) 9...Qd4=+ 10.Bb5 Bd7 11.0-0 (11.Bd7 Qd7 12.0-0 Bd4-/+) 11...0-0 (better 11...Bb5!? 12.Nb5 Qa1 (12...Qe5 13.d4 Bd4 14.Nd4+/-) 13.Nc7 Kd7 14.Na8 Qa2-+ (14...Ra8?! 15.Qb3 Bf2 16.Kf2 Qd4 17.Kf3 Qd5 18.Qd5 Nd5 19.Bb2-/+)) 12.Bd7=+ Qd7 13.Ne4 (13.Rb1 Nc6 14.Qh5 b6=+) 13...Bd4 14.Ba3 Rfe8 (14...Ba1 15.Qa1 Rac8 16.d4-/+) 15.Qh5 (15.Rb1 Ng6-/+) 15...Ba1 16.Ra1 (16.Ng5 h6 17.Qf7 Kh8 18.Ra1 hg5 19.Rb1-+) 16...Qd4-+ 17.Re1 Qe5?? (better 17...Ng6-+) 18.Qe5+- (18.Qe5 Ng6 19.Qc7+-) 1-0. zsolti_83 (2525) - PchelkinVK (2450), Rated Bullet game, lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bc4 Qa5 7.0-0 Qc5 (7...Bc5 8.c3=) 8.Qe2+= a6 9.Ba3 Qa5 10.Bf8 Kf8 11.a4 Nge7 12.d3 (12.c3 Qc5+-) 12...g5 13.Qe4 g4 14.Nd4 Qe5 15.Qe5 Ne5 16.Bb3 (16.Nd2 Bd7=) 16...N5c6 17.Nc6 Nc6 18.c3 Kg7 19.Na3 Rd8 20.Rad1 Na5 21.Bc2 Bd7 22.Rfe1 Rac8 23.Nb1 Nc6 (23...Kf6 24.Re3=+) 24.d4= Be8 25.Rc1 h6 26.Re4 h5 27.Re3 (27.h3 gh3 28.gh3 Kf6=) 27...Ne7 (27...Nd4 28.cd4 Ba4 29.Rc3 Rc3 30.Nc3 Bc2 31.Rc2 Rd4 32.Kf1-/+) 28.Re5= Nd5 29.Bb3 Nf6 30.Rce1 Bc6 31.R1e3 Bd5 32.Bd5 Rd5 33.h3 (33.a5!?=+) 33...Rc4-/+ 34.hg4 Ng4 (34...hg4 35.a5 Ra4 36.Nd2 Rda5 37.Kh2-/+) 35.Rd5 ed5 36.Re7 Ra4 37.Rb7? (37.f3 Kf6 38.Rb7 Ne3-/+) 37...Ra1 (better 37...Ra2!?-+) 38.f3-/+ Ne3 39.Kf2 Nf5 (39...Nd1 40.Kg3-+) 40.Ke2 (40.Rb2 Nd6=+) 40...Ra2 (40...Nd6 41.Rd7 Nb5 42.Nd2 Nc3 43.Ke3-+) 41.Nd2? (better 41.Kd3=+) 41...Nd6-+ 42.Rb1 Nc4 43.Rd1 h4 44.Ke1 Ne3 45.Rc1 Ng2 46.Ke2 h3 47.c4 (47.Rg1-+) 47...dc4 48.Rc4 Ra1 (better 48...Nf4 49.Ke3 Ra1 50.Ne4 Nd5 51.Kf2-+) 49.Nf1 (49.Ne4 Nf4 50.Kd2-+) 49...Nf4 50.Kf2 Rf1! (50...Rf1 51.Kf1 h2-+) 0–1. Capron,Daniel (2180) – Akl,Nabil (2190), Nationale II French, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bd3 Bc5 7.0-0 Nge7 8.Re1 Ng6 9.Ba3 Qe7 10.Qc1 b6 11.c3 Bb7 12.Bc5 (12.cd4 Ba3 13.Na3 Nb4 14.Bb5 Kd8+=) 12...bc5 13.cd4 Nd4 14.Nd4 cd4 15.Bb5 Kf8 16.Qa3 (16.Bf1 Kg8=) 16...Nf4 (16...Qa3 17.Na3 Ke7 18.Rab1=+) 17.g3 (17.Bf1 Qa3 18.Na3 Ke7=) 17...Nh3=+ 18.Kf1 Rc8 (18...Ng5 19.Be2=+) 19.Rc1 (19.f4 h5=) 19...Rc1 20.Qc1 g6 (20...f6 21.ef6 gf6 22.a4=+) 21.Qa3 h5 22.Be2 Ng5 (22...h4 23.Qe7 Ke7 24.Na3 hg3 25.fg3=+) 23.d3 (23.h4 Nh7+=) 23...Nf3 (23...h4 24.g4=+) 24.Qe7 (24.Qa7 Nh2 25.Ke1 Qd7+=) 24...Ke7= 25.Bf3 Bf3 26.Nd2 Bd5 27.Rc1 Rb8 (27...Rd8!?=) 28.Rc7+/- Kf8 29.Ra7 Rb2 30.Ke2 Ba2 31.Ra4 Bd5 32.Rd4 Ra2 33.f4 Kg7 34.Ke3 h4 (34...f6 35.ef6 Kf6 36.h3+/-) 35.Rb4 h3 36.Rb1 Ra4 37.Re1 Ra2 38.Rd1 (38.Re2 Ra1+/-) 38...Bg2 (better 38...f6+/-) 39.Re1 Bd5 40.Nf3 (40.Re2 Ra1+/-) 40...Rg2? (better 40...Bf3 41.Kf3 Rh2=) 41.Ng1?? (better 41.Re2+/-) 41...Rh2-+ 42.Nh3 (42.Ne2 Rg2-+) 42...Rh3 43.Kd4 1-0. zsolti_83 (2470) - PchelkinVK (2470), Rated Bullet game, lichess.org, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

6.Bd3 Bc5 7.0-0 Nge7 8.Qe2 a6 9.a4 Nd5 10.Qe4 Nde7 (10...f5 11.ef6 Nf6 12.Qe2=) 11.Ba3+= Ba3 12.Na3 Qd5 13.Nc4 Qe4 14.Be4 0-0 15.Nb6 Rb8 16.Rfb1 f6 17.Nc4 f5 (17...Nd5!?+=) 18.Bc6+/- Nc6 19.Nd6 b6 20.Rb2 Rd8 21.Nc8 Rdc8 22.Rab1 d3 23.cd3 Ne7 24.g3 (24.Rb6?? Rb6 25.Ra1 Rb3-+) 24...Nd5 25.Kf1 h6 26.h4 Kf7 27.h5 Rc5 28.Nd4 Rb7 29.Ke2 Ke7 30.Nb3 Rc8 31.Na5 Rbc7 (31...ba5 32.Rb7 Pinning (32.Rb7 Deflection; 32.Rb7 Clearance)) 32.Nc4 Rc4 33.dc4 Rc4 34.a5 b5 0-1. Bortnyk,Olexandr (2595) - Pon,M (2185), Titled Tuesday 9th June, 2020. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 d4)

4.e5 Bd7

5.bc5 Qa5 6.c3 Bc5 7.d4 Be7 8.Qb3 Nc6 (8...Qc7 9.Bd3+=) 9.Bd3 (9.Qb7 Rb8 10.Qa6 Qa6 11.Ba6 Rb6+-) 9...0-0-0 (9...Qc7 10.0-0=) 10.Ba3 (10.Nbd2 Qc7+-) 10...h6 (10...f6!?+=) 11.Be7+- Nge7 12.Na3 Nb8 (12...a6 13.0-0+-) 13.Rb1 Bc6 14.0-0 g5 15.c4 Qa4 16.Qc3 (better 16.Qb2+-) 16...Na6?? (16...dc4!? 17.Bc4 Nd5 18.Bd5 Rd5+-) 17.Nb5 (better 17.Bc2 Qc2 18.Qc2+-) 17...Bb5? (better 17...Kb8 18.c5 Ng6+-) 18.cb5 (18.Rb5?! Rd7 19.Rfb1 dc4 20.Bc4 Rc7+-) 18...Nc7 19.Rfc1 Rd7 20.b6 Nc6 21.bc7 g4 (21...Rc7 22.Bb5 Qa5+-) 22.Bb5 Qb5 23.Rb5 gf3 (23...Rc7 24.Nd2 h5+-) 24.Rb7! (24.Rb7 a5 25.Qc6 fg2 26.Rb8) 1–0. Weng,Annegret (2085) – Just,Gabriele (2005), GER–chT Federal Cup (Women), 1996. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

5.bc5 Bc5

6.d4 Bb4 7.c3 Ba5 8.Bd3 Nc6 9.0-0 Nge7 10.h4 (10.Qb3 0-0+=) 10...h6 11.h5 Rc8 12.Bd2 a6 13.a4 Bb6 (13...0-0 14.Ra2=) 14.Na3 Na5 15.Rc1 Nc4 (15...0-0 16.Re1=) 16.Qb3 (16.Nc4 dc4 17.Bc2 0-0=) 16...Nd2= 17.Nd2 Bc6 18.Nc2 Ba5 19.Nb4 Qb6 (19...0-0 20.Nc6 Rc6 A) 21.Qb7? Rb6 (21...Rc3 22.Rc3 Bc3 23.Nf3+=) 22.Qa7 Nc6 23.Qa6 Ra6 24.Ba6 Nd4-+; B) 21.Rfd1=) 20.Nf3 (20.Nc6 Rc6 21.Qb6 Bb6=) 20...Bd7 21.Rb1 0-0 22.Qa3 (22.Rfc1 Qd8=) 22...Qc7 (22...Qd8 23.Na2 Rc7 24.Nd2=) 23.Rfc1 (23.Na6 ba6 24.Qe7 Qc3 25.Ba6 Rc7+=) 23...Nc6 24.Nc2 f6 25.c4 (25.ef6!? Rf6 26.c4=) 25...fe5=+ 26.cd5 ed5 27.Ne3 ed4 (better 27...Rf3!? 28.gf3 ed4 29.Nd5 Qe5=+) 28.Nd5= Qd8 29.Nd4 Rf2 (29...Rf7 30.Bc4 Kh8 31.Nf3=) 30.Ne7 (30.Nc6 Rg2 31.Kf1 Bc6 32.Ne7 Kh8 33.Rc6 Rg1 34.Kg1 Qd4 35.Kf1 Qf4 36.Ke2 Qe5 37.Kd1 Qe1 38.Kc2 Rc6 39.Nc6 Qd2 40.Kb3 Qd3 41.Ka2 Qd5 42.Qb3 Qc6= (42...bc6? 43.Qd5 cd5 44.Rb8 Kh7 45.Ra8+-)) 30...Ne7+= 31.Rc8?? (31.Kf2 Nd5 32.Kf1=+ (32.Rb7 Qh4 33.Kg1 Qd4 34.Kh1 Bd2 35.Rc8 Bc8-+)) 31...Bc8-+ (31...Qc8 32.Kf2 Nd5 33.Qb3 Qf8 34.Kg1+-; 31...Nc8?! 32.Kf2 Bb6 33.Rb6 Nb6 34.Qd6 Na4 35.Qd5 Kh8 36.Qe4-/+) 32.Qc5 (32.Ne6 Be6 33.Bh7 Kh7 34.Kf2 Qd2 35.Kg1 Bc3 36.Qc3 Qc3-+) 32...Rf6 33.Bc4 (33.Qc4 Kh8 34.Ne2 Rc6-+) 33...Kh8 34.Ne6 (34.Qe5 b5! 35.Nb5 ab5-+) 34...Be6 35.Rb7 (35.Be6 Re6 36.Kh1 Bb6 37.Rb6 Rb6-+) 35...Bc4 (better 35...Rf5 36.Qf5 Bf5 37.Be2-+) 36.Qc4 Bb6 (36...Bb6 37.Kh2 Qd1 38.Rb8 Kh7 39.Qe4 Nf5 40.Rb6 Qh5 41.Kg1 Rb6-+) 0–1. Hameau,C (1875) – Tskhadadze,A (2095), St.Petersburg Summer Open, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

6.d4 Bb4 7.c3 Ba5 8.Bd3 Ne7 9.a4 a6 10.0-0 0-0 (10...Nbc6 11.Qb3+=) 11.Bh7 (11.Qc2 h6+=) 11...Kh7= 12.Ng5 Kg6 13.Qg4 f5 14.ef6 e5?? (better 14...Kf6 15.Re1 Qc8=) 15.Ne6+- (15.fe7?! Bg4 16.ed8Q Bd8=) 15...Kf6 16.de5 Ke5 (16...Kf7 17.Nd8 Bd8 18.Qg3+-) 17.Re1 (17.Bf4 Kf6 18.Qg7 Kf5 19.Nd4 Kf4 20.Qg3 Ke4 21.Nd2) 17...Kd6+- 18.Ba3 (18.Nd8?! Bg4 19.Nb7 Kd7 20.Na5 Nbc6+-) 18...Kc6 19.Nd8 Bd8 (19...Rd8 20.Re6! Be6 21.Qe6 Kc7 22.Be7+-) 20.Qg7 Rg8 21.Qf6 (21.Be7?! Rg7 22.Bd8 Bh3+-; 21.Re7 Rg7 22.Rg7 Bf5+-) 21...Kc7 22.Be7 Be7 23.Re7 Nc6 24.Qf4 Kd8 25.Rf7 Re8 26.Nd2 Ne5 (26...Rc8 27.Qg5 Kc7 28.Qd5+-) 27.Qf6 (better 27.Rg7!? b5+-) 27...Kc7 28.Qf4 Re6?? (28...Kd8 29.Rf8 Ng6 30.Re8 Be8 31.Qd6 Kc8+-) 29.Nf3+- Rae8 30.Ne5 Re5 31.Re1 Kd6 32.Re5 Re5 33.Rd7! (33.Rd7 Kd7 34.Qe5+-) 1–0. Vogiatzis,D (2065) – Balhar,Michael, LGA Premium Cup, 2004. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

6.d4 Bb6 7.Bd3 Nc6 8.c3 Qc7 9.Ba3 (9.0-0 Nge7+=) 9...Na5 (9...Nge7 10.0-0+=) 10.Ng5 (10.Nfd2 Nh6+=) 10...Nh6 (10...Nc4 11.Nf7 Kf7 12.Qf3 Nf6 13.Bc4 Qc4 14.ef6 gf6 15.Nd2=) 11.Qe2 (11.Nh7 Nc4 12.Bc1 Nf5+=) 11...Qc6 12.0-0 (12.Bb4+=) 12...0-0-0 (12...Nf5!?+=) 13.Nd2+- Kb8 (13...f6 14.Ngf3 (14.Nh7?! Nf5=) 14...Nf5 15.Rfc1+-) 14.Rab1 (14.Bb4 f6 15.ef6 gf6 16.Nh7 Ng8+-) 14...Qc3 15.Bd6 Ka8 16.Rfc1 Qd4 17.Rb4 (17.Nh7 Ng4 18.Rb6 Nf2 19.Qf2 Qd3+=) 17...Nc4 (17...Qf2 18.Qf2 Bf2 19.Kf2+-) 18.Nc4 (18.Bc4 dc4 19.Nc4 Qf2 20.Qf2 Bf2 21.Kf2 Bc6+-) 18...dc4 19.Rcc4 (19.Rbc4?! Rc8 20.Qd2 Qd5+=; 19.Bc4 Qf4 20.Rcb1 Ng4= (20...Qg5 21.Rb6 ab6 22.Qb2+-)) 19...Qd5 20.Be4 (20.Bh7 Bb5 21.Be4 Bc4 22.Rc4 Qa5-/+) 20...Qa5 21.Qf3 (21.Nh7?! Bb5 22.Bb7 Kb7 23.Qe4 Ka6+=) 21...Rb8 22.Rc7 (22.Nf7!? Rhc8 23.Rc8 Bc8+-) 22...Bc8 23.Rc3 Qa2?? (23...f5 24.Ra3 fe4 25.Ne4 Qb4 26.Bb4 Bd7+-) 24.Rb6 (24.Rb6 f6 25.ef6 gf6 26.Bb8 ab6 27.Bf4 Qa1 28.Bc1 fg5 29.Ra3 Kb8 30.Ra1 Re8 31.Qa3 Nf5 32.Bb2 Kc7 33.Rc1 Kd8 34.Bf6 Kd7 35.Rd1 Nd4 36.Rd4 Kc7 37.Be5; 24.Bb8?! Kb8 25.Rb1 Qd2+=) 1–0. Ossa,Orlando (2255) – Tabares Delgado,Andres, IRT Open de Ajedrez Ciudad de Cartago, 2010. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

6.d4 Bb6 7.Bd3 Nc6= 8.c3 Nge7 9.Ng5 (9.Na3 0-0+=) 9...h6 (9...Nd4 10.cd4 Bd4 11.Nf7 Kf7 12.Bg6 Ng6 13.Qd4 Qh4-/+) 10.Nh3 (10.Nf3 Rc8=) 10...Rc8 (10...Nd4 11.Bf4 Ndc6-/+) 11.Qg4? (11.Bf4 0-0=) 11...Nd4 (better 11...Bd4 12.Qg7 Be5-+) 12.Qg7=+ Rg8 13.Qh6 Ndf5 (13...Rg2!? 14.cd4 Bd4-+) 14.Bf5+= Nf5 15.Qh7 Rf8 16.0-0 (16.Ba3 Bc5 17.Bc5 Rc5=) 16...Rc4 17.Bg5 Qc8 (17...Qc7 18.Re1=) 18.Nf4+= Bd8 19.Bd8 Qd8 (19...Kd8 20.Qh5=) 20.Nh5 Ke7 (20...Rh4 21.g3 Ke7 22.gh4-/+) 21.Ng7+= Rg4 (21...Ng7!? 22.Qg7 Qc7+=) 22.Nf5+- ef5 23.Qh6 Rg6 (23...Qc7 24.f3 Qc5 25.Kh1+-) 24.Qh4 Ke8 (24...Ke6 25.Qb4 Bc6 26.f4+-) 25.Qd8+- Kd8 26.f4 (26.Rd1 Ke7+-) 26...f6 27.Nd2 fe5 28.fe5 Rfg8 (28...f4 29.Rf2+-) 29.Rf2 (29.g3 Re8 30.Rfe1 f4+=) 29...f4 30.Kh1 (better 30.Re1+-) 30...Rh8? (better 30...Rc6!? 31.Rc1 Re8+-) 31.Rf4+- Rgh6 (31...Rhg8 32.g3+-) 32.Nf3 Rc6 33.Rc1 Ke7 (33...Ke8 34.Nd4 Ra6 35.Rf2+-) 34.Nd4 Rc4 (34...Rch6 35.h3+-) 35.Rcf1 Rc3 (35...Rh7 36.R1f3+-) 36.Rf7 Ke8 (36...Kd8 37.e6 Be8 38.Rb7+-) 37.e6 (37.e6 Bc8 38.Nf5 Be6 39.Ng7 Kd8 40.Ne6 (40.Rb7?! Bc8 41.Ra7 Rc7 42.Rc7 Kc7+-) 40...Kc8 41.Rb1+-) 1–0. Gemsa,Pavel (1970) – Cibikova,Sofia Anna (1715), V4 Youth Camp Liptov Team Tournament, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

6.d4 Be7

7.c3 Qa5 8.Nfd2 (8.Qb3 Qc7=) 8...Nc6 9.a4 (9.Bd3 Rc8 10.0-0 f6+=) 9...f6 10.f4 Nh6 11.Bd3 fe5 (11...0-0 12.Qc2 f5 13.Qb3=) 12.fe5 0-0 (12...Nf5 13.Qb3=) 13.Nf3 (13.Nb3 Qc7+=) 13...Be8 (13...Nf5 14.0-0=) 14.0-0 (14.Bh6 gh6 15.Qc2 Kg7+=) 14...Bh5 (14...Nf5+=) 15.Ba3 (15.Bh6!? gh6 16.Qe1+=) 15...Ba3 (15...Bf3 16.Rf3 Rf3 17.Qf3 Qa4 18.Ra2=+) 16.Ra3= Nf5 (16...Rac8 17.h3=) 17.Qd2 h6 18.Rb3 (18.Qb2 Rab8 19.Nfd2 Bg6=) 18...Qc7 (18...Rf7 19.Bf5 Rf5 20.Rb7 Bf3 21.Rf3 Rf3 22.gf3 Qa4 23.Qd3=) 19.Na3 a6 20.Rbb1 Rac8 21.Qb2 (21.Ne1 Na5=) 21...Ne3 22.Rfe1 (better 22.Rf2!?=+) 22...Ng2!-+ 23.Qg2 (23.Qg2 Rf3 Remove defender; 23.Kg2 Rf3 Remove defender) 23...Rf3 (23...Bf3 24.Qg6 Rf4 25.Qe6 Kh8 26.Nc2=+) 24.Bg6 (24.Qd2 Rf7-/+) 24...Bg6 (24...Rc3 25.Bh5 Ra3 26.Qg4-+) 25.Qf3-/+ Rf8 26.Qh3 Bf5 (26...Bb1?! 27.Qe6 Kh7 28.Nb1=) 27.Qe3 Bb1 28.Rb1 Ne7 29.Qh3 Nf5 30.Nc2 (30.Qd3 Nh4 31.Rf1 Qa5-+) 30...Qc4 31.Ne1? (31.Rf1-+) 31...Nd4! (31...Qa4?! 32.Qd3 Rc8 33.Nc2-+) 32.Rb7 (32.cd4 Qd4) 32...Ne2 33.Kh1 Qe4 34.Qg2 (34.Qf3 Rf3 35.Rb8 Rf8 36.Ng2 Qf3 37.Rf8 Kf8 38.c4 Qf1) 34...Rf1 0–1. Theuretzbacher,K (2245) – Rozentalis,Eduardas (2565), TCh–AUT, 2017. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7 5.bc5 Bc5)

7.c3 Nc6 8.Bd3 Qc7 9.0-0 Bd8 (9...Rc8!?=) 10.Ba3 Be7 11.Re1 a6 12.Qd2 Ba3 (12...Rc8 13.Qf4+=) 13.Na3 Nge7 14.Nc2 (14.c4 0-0+=) 14...b5 15.Ne3 Na5 16.h4 (16.Qc2 Rc8 17.Rec1 Ng6=) 16...Nc4 17.Nc4 dc4 18.Bc2 Bc6 19.Ng5 h6 20.Ne4 Be4 (20...0-0 21.a4=) 21.Be4 Nd5 22.a4 0-0 23.Reb1 Qd7 24.ab5 ab5 25.Qb2 Ra1 26.Ra1 Rb8 Black prepares the advance b4 27.Ra6 Qe8 (27...Qe7 28.h5=) 28.Ra7 (28.Bd5 ed5 29.Rd6 b4 30.cb4 Qb5+-) 28...b4 29.cb4 Qb5 (29...Rb4 30.Qa2 Nb6 31.Rb7+=) 30.Qa3+- Qb4 (30...Nb4 31.Ra5 Qe8 32.Rc5+-) 31.Qb4 Nb4 (31...Rb4?? 32.Ra8 Rb8 33.Rb8) 32.Rc7 Nd5 (32...f5 33.ef6 gf6 34.g4+-) 33.Rc4+- Kf8 (33...Rd8 34.Kf1+-) 34.Rc5 (34.Bd5!? ed5 35.Rc5 Rd8+-) 34...Nf4+- 35.d5 (better 35.Kh2!?+-) 35...ed5= 36.Bd5 Re8 (36...Nd3!? 37.Rc7 Ne5+=) 37.Bc4 (37.Be4 Rd8+-) 37...Ng6 38.e6! fe6 39.h5 Nf4 40.g3 Nh3 41.Kg2 Ng5 42.Re5 (42.f4 Nf7+-) 42...Kf7 43.Bd3 Kf6 44.f4 Rd8 45.Bc4 Rc8 46.Bb3 Rc3 47.Ba4 ½–½. Rodriguez Costa,Moira – Visschedijk,G, EU–ch U12 Girls, 1998. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7 5.bc5 Bc5)

7.Be2 Nc6 8.0-0 Rc8 9.c4 (9.Na3 Qa5 10.Nb5 Ne5 11.de5 Bb5+=) 9...dc4 10.Bc4 Nb4 11.Bb3 (11.a3!?+=) 11...Bb5= 12.Ba4 Qd7 (12...Ba4!? 13.Qa4 Qd7 14.Qd7 Kd7=) 13.Bb5= Qb5 14.Nbd2 Nh6 15.Rb1 Qd7? (15...Qc6 16.Qb3 0-0 17.Ba3+=) 16.Ba3 (better is 16.Ne4!? Nd5 17.Bh6 gh6 18.Qd2+-) 16...a5 17.Bb4 Bb4 18.Qb3 (18.Ne4 0-0=) 18...Rc3 19.Qd1 0-0 20.Nb3 (20.Ne4!? Ra3 21.Rb3+=) 20...Rfc8-/+ 21.Rc1 Nf5 22.Rc3 Rc3 23.g4 (23.Ng5!?-/+) 23...Ne7-+ 24.Ng5 (24.Ne1 Qb5-+) 24...Qd5 25.f3 (25.Qe2 Ng6 26.f4 a4-+) 25...a4 26.Nc1 (better is 26.Nc5 Nc6 27.Na4-+) 26...Nc6 27.Ne4 Rc4 (27...Ra3 28.Ne2-+) 28.Qa4 (28.Ne2 b5 29.a3 Ba3-+) 28...Qd4 29.Nf2 (29.Kh1 Ne5 (29...Qe5?! 30.Nd3 Qa5 31.Qa5 Ba5 32.Rb1-/+) 30.Ne2 Qd3-+) 29...Ba5 (29...Ne5!? 30.Qd1 Qe3 31.Kg2-+) 30.Qb5 Rb4 31.Qd3 (31.Qe2 Rb2 (31...Ne5?! 32.Nb3 Qd5 33.Rc1-/+; 31...Qe5?! 32.Qe5 Ne5 33.Nfd3 Nd3 34.Nd3-+) 32.Qe4 Qe4 33.Ne4 Ne5-+) 31...Ne5 (31...Ne5 32.Qd4 Nf3 (32...Rd4?! 33.Nb3 Ra4 34.Na5 Ra5 35.f4 Nf3 36.Kg2 Nh4 37.Kg3-+) 33.Kg2 Nd4-+) 0–1. Ayushiev,Ayur – Lyktypov,Lushan, Ulan–Ude RUS, Buryatia Ch, 2014. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

7.Bd3 Nc6

8.c3 Qc7 9.0-0 Na5 10.Ng5 Bg5 11.Bg5 Nc4 12.Qe2 Bb5 13.f4 Ne7 14.Be7 Qe7 15.Nd2 Qc7 (15...Rc8 16.Rfb1 a6 17.a4 Nd2 18.Bb5 ab5 19.Qd2 ba4 20.Ra4+=) 16.f5 0-0-0? (better 16...ef5!? 17.Rab1 a6+=) 17.Rab1+- Nd2 18.Rb5 Qc3 (18...Nf1 19.Rc5 Qc5 20.dc5 Nh2 21.Kh2 g6 22.fe6 fe6+-) 19.Rc5 Qc5 20.dc5 Nf1 21.Qf1 Rd7 (21...Rdf8 22.Qf4 g6 23.fe6 fe6 24.Qh4+-) 22.Qd1 (22.Qf4 Rc7+-) 22...Rc7 (22...Re7 23.Qg4 g6 24.Qh4+- (24.fg6?! hg6 25.Qf4 Rc7+-)) 23.Qg4 ef5 (23...Kb8 24.fe6 fe6 25.Qe6 Rc5 26.Qd6 Rc7 27.Kf2+-) 24.Qg7 Rd8 25.Qh7 Kb8 26.Qf5 Rc5 27.h4 (27.Qf7 Rcc8 28.h4 d4+-) 27...Rc1 (27...d4 28.h5 Rdd5 29.h6+-) 28.Kf2 Rcc8 (28...Ra1 29.Qf7 Ra2 30.Be2+-) 29.Qf4 (29.Qf7?! Rf8 30.e6 Rf7 31.ef7 Kc7+-) 29...Ka8 30.h5 (30.Qf7?! Rf8 31.e6 Rf7 32.ef7 Rf8+-) 1–0. Kaulich,P (2155) – Kosanke,S (1985), 31st Kiel Open, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7 5.bc5 Bc5 6.d4 Be7)

8.c3 Rc8 9.0-0 Qc7=.

8.c3 Rc8 9.h4 Na5 10.Ng5 f5? (better is 10...Nh6!?=) 11.ef6!+/- Nf6 (11...Bf6 12.Qh5 Double attack; 11...gf6 12.Qh5 Mate attack; 11...Nf6 12.Bh7 Combination) 12.Bh7! Qb6 (12...Nh7 13.Qh5 Mate attack; 12...Rh7 13.Nh7 Combination) 13.Bg6 Kf8 14.Nf7 Rg8 15.Ne5 Be8 16.Qf3 Bg6?? (better is 16...Nc6 17.Nc6 Qc6+/-) 17.Nd7+- (17.Nd7 Ke8 18.Nb6 ab6 19.Qe2+-; 17.Ng6?! Ke8+/-) 1–0. Westerberg,Jonathan (2400) – Peczely,Gyorgy (1830), Skopje MKD, 4th Karpos Open, 2014. (=1.e4 e6 2.Nf3+= d5 3.e5 c5 4.b4 Bd7)

8.c3 Rc8 9.h4 f6 10.Bf4=.

8.c3 Rc8 9.h4 f6 10.Rh3 f5 (10...fe5 11.de5 Qc7 12.Bf4=) 11.Ng5 (11.Rg3 Kf7=) 11...h5 (11...Qc7 12.Nd2=) 12.Be2 g6 13.Rg3 Bf8 14.Nh3 Nce7 (14...Qh4?? 15.Bg5 (15.Rg6?! Nge7 16.Rf6 Qe4+-) 15...Qg3 16.fg3+-) 15.Nf4 Kf7 16.Nd2 Bh6 17.Nf3 Bf4 (17...Qa5 18.Qc2+=) 18.Bf4+- Kg7 19.Ng5 Rc6 20.Kf1 Be8 (20...Qc7 21.Rb1+-) 21.Kg1 (21.Rb1 Rb6+-) 21...Nh6 22.Bh5! Nf7 (22...gh5 23.Ne6) 23.Nf7 (23.Bg6 Ng6 24.h5 Nh6 25.hg6 Bg6+-) 23...Bf7 (23...Kf7 24.Be2 Rh4 25.Bg5+-) 24.Bg5 Rh5?? (better 24...f4 25.Bf6 Kg8+-) 25.Qh5!!+- f4 (25...gh5 26.Be7) 26.Qh6 Kg8 1–0. Zakarian,D (2340) – Hadzimanolis,A (2300), Ikaros Festival, 2007. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7 5.bc5 Bc5)

8.c3 f6 9.0-0 Qc7 10.Re1 f5 11.a4 Na5 12.Qc2 h6 13.Ba3 Ba3 14.Na3 Ne7 15.Nb5 Bb5 16.Bb5 (16.ab5 Nc4+/-) 16...Kf7 17.Reb1 Rac8 18.Rc1 Nc4 19.Bc4 Qc4 20.Nd2 Qc6 21.Qd3 Rhd8 22.a5 Rc7 23.a6 b6 24.c4 Rdc8 (24...dc4 25.Rc4 Qb5 26.Qc3=) 25.c5+= bc5 26.Rc5 Qd7 27.Nb3 Rb8 28.Rc7 Qc7 29.Nc5 Qb6 30.h3 (30.Rc1!?+/-) 30...Qb2= 31.Rd1 Rb4 32.g4 f4 33.Nb7 Nc6 Increases the pressure on d4 (33...Rb3 34.Qd2 Qd2 35.Rd2=+) 34.Nd6 (better 34.Qh7!? Rb7 35.ab7 Qb7 36.g5 hg5 37.Qh5 Kg8 38.Qe8 Kh7 39.Qe6+-) 34...Kg8= 35.Qg6 Nd4 36.Ne8?? (36.Rd4 Qa1 37.Kh2 Qd4 (worse 37...Rd4 38.Qf7 Kh8 39.Ne8 Qg1 40.Kg1 Rd1 41.Kh2 Rh1 42.Kh1 f3 43.Qg7) 38.Qe6 Kh8 39.Qc8 Kh7 40.Qf5 g6 41.Qf7 Kh8 42.Qf8 Kh7 43.Qf7 Kh8 44.Qf8 Kh7 45.Qf7=) 36...Ne2?? (36...Nf3 37.Kh1 Qe5 38.Ng7 Qg7 39.Qe6 Qf7 40.Qc8 Qf8 41.Qe6 Kh8 42.Qd5-+) 37.Kh2?? (better 37.Kf1 Qe5 38.Ng7 Qg7 39.Qe6 Qf7 40.Qe2=) 37...Qe5-+ 38.Nc7? (38.Ng7 f3 (worse 38...Qg7 39.Qe6 Qf7 40.Qe2+=) 39.Kh1 Qg7 40.Qe6 Qf7 41.Qh6 Nf4-+) 38...Qc7 (better 38...f3!? 39.Kh1 Re4 40.Qe6 Qe6 41.Ne6 Re6 42.Rd5 Ra6 43.Kh2-+) 39.Qe6 Kh7 40.Qf5 g6 41.Qe6 (41.Qd5 Qg7 42.Qd8-+) 41...f3 42.Kh1 d4 43.Qe4 Rb6 (better 43...Qf7!? 44.Re1-+) 44.Qf3 Qc6 (44...Qc4 45.h4-+) 45.Kg2 (45.Qc6 Rc6 46.Rd2 Re6-+) 45...Qf3 (45...Nf4! 46.Kg3 g5 47.Qc6 Rc6 48.Kf3-+) 46.Kf3 Rb2 47.Ra1 (47.Re1 d3 48.Ke3 Rb3-+) 47...Nc3 48.Kg2 (48.Ra3 Rc2 49.Ra1 d3-+) 48...Kg7 (48...d3 49.Re1 d2 50.Re7 Kg8 51.Rd7-+) 49.Kf3 (49.Rc1 Ra2-+) 49...Kf6 (49...d3 50.Ke3 d2 51.f4-+) 50.Re1 (50.Ra3 Rc2 51.Ra1 d3-+) 50...Rb6 (better 50...d3!? 51.Rh1-+) 51.Ra1 (51.h4 Ra6 52.Re8 Rd6 53.g5 hg5 54.Rf8 Kg7-+) 51...Ke5 (better 51...Rd6 52.Kg3-+) 52.Ra5 Rb5 53.Ra1 Kd5 54.h4 Kc4 55.Rc1 (55.Re1 d3 56.Ke3-+) 55...d3 56.Ke3 Re5 57.Kf4 White plans g5 57...Re2 58.g5 (58.Kf3 Re7 59.Rh1 d2-+) 58...hg5 59.Kg5 d2 60.Ra1 Rf2 (60...Re1 61.Re1 de1Q 62.Kg6 Qg1 63.Kf5 Qf2 64.Kg4 Ne4 65.Kh5 Qg3 66.Kh6 Qh4 67.Kg7 Qe7 68.Kg6 Qf6 69.Kh7 Ng5 70.Kg8 Qf7 71.Kh8 Qf8) 61.Kg6 d1Q (better 61...Re2 62.Rf1 Re1 63.Rf4 Kd5 64.Rf5 Ke4 65.Rg5-+) 62.Rd1 Nd1 63.h5 Kb5 (63...Ra2!? 64.Kf6 Ra6 65.Kg7-+) 64.h6 Rh2 65.h7 Ka6 (better 65...Ne3-+) 66.Kg7 Kb5 67.h8Q Rh8 (67...Rh8 68.Kh8 a5 69.Kg7 a4 70.Kf6 a3 71.Ke5 a2 72.Ke6 a1Q 73.Kd5 Qa2 74.Ke4 Qe6 75.Kf4 Qf6 76.Ke4 Nc3 77.Ke3 Qe5 78.Kf3 Qe4 79.Kg3 Qf5 80.Kh4 Kc4 81.Kg3 Ne4 82.Kh4 Qf4 83.Kh5 Qg5) 0-1. Povilaitis,Tomas (1915) - Kosikov,Jevgenij, 16th Sea Festival Rapid, 2019. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Bd7)

4.e5 Nd7

5.bc5 Bc5 6.d4 Bb4 7.c3 Ba5 8.Ba3 Ne7 9.Bd3 0-0 10.Bh7 Kh7 11.Ng5 (11.Ng5 Kg6 12.Qg4+-) 1-0. endre969 (2765) - Ratscales (2445), ChessWorld.net, 2013. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

5.bc5 Bc5 6.d4 Bb6 7.Ba3 Ne7 8.Bd3 f6 9.ef6 Nf6 10.0-0 0-0 11.Re1 Bc7 12.Ng5 Attacking the backward pawn on e6 12...Bd6 13.Ne6 Be6 14.Re6 Ba3 15.Na3 a6 (15...Qd7 16.Re2+-) 16.Qe2 (16.Rb1 Nc6 17.c4 Qd7+-) 16...Nc6 17.c3 Qa5 18.Qb2 Rae8 19.Re8 Re8 20.Nc2 (20.Qb7? Qc3 21.Nc2 Nd4-+ (21...Qd3?! 22.Qc6 Re2 23.Ne3=)) 20...Qc7 21.Ne3 Qf7 (21...Na5 22.a4+-) 22.Nf5 (22.c4 Qd7+-) 22...Qd7 23.a4 Na5 24.Ne3 Ng4?? (better 24...Qc7!?+-) 25.Ng4 (better 25.Bf5!? Qe7 26.Bg4 Nc4+-) 25...Qg4 26.Qb6 Nc6? (better 26...Nc4 27.Qb7 Qe6+-) 27.Qb7 Nd4 (27...Qe6 28.Qa6 Qd7+-) 28.Qd5 (worse 28.cd4 Qd4 29.Qb1 Qh4+-) 28...Ne6 29.Re1 1–0. Depoorter,E (2100) – Quiniou,Jean, 2nd Open La Fere FRA, 2003. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

5.bc5 Bc5 6.d4 Bf8 7.Bd3 g6 8.0-0+- Bg7 9.Ba3 Bf8 (9...Ne7 10.Re1+-) 10.Qd2 (10.Bf8 Kf8 11.Na3 Ne7+-) 10...Ba3 (10...Bh6 11.Qc3+-) 11.Na3 a6 12.c4 Ne7 13.cd5 (13.Rab1 0-0+-) 13...Nd5 14.Nc4 0-0 15.Nd6 (15.Be4 b5 16.Nd6 N7b6+-) 15...Kg7 (15...f6 16.Qh6+-) 16.Ng5 (better 16.Rfb1+-) 16...b5?? (16...Qe7!?+-) 17.Ndf7 (better 17.Ngf7 Rf7 18.Qh6 Kh6 19.Nf7 Kg7 20.Nd8+-) 17...Rf7?? (better 17...Qe7 18.Nd6 Rb8+-) 18.Ne6 (18.Ne6 Kh8 19.Nd8+-) 1–0. Llaneza Vega,Marcos – Montes Gutierrez,Ignacio, 5th San Agustin op, 2000. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

5.bc5+= Nc5 6.Ba3 Qa5 7.Bc5 Bc5 8.c3 Bd7 9.d4 Be7 10.Bd3 Rc8 11.0-0 Bb5 12.a4 (12.Bb5 Qb5 13.Qb3 Qc6=) 12...Bd3+= 13.Qd3 Rc4 14.Nfd2 Ra4 15.Nb3 Qa6 (worse is 15...Ra1 16.Na5 Ra5 17.Nd2+/-) 16.Qg3 (16.Qa6 Ra6 17.Ra6 ba6=) 16...g6 (16...Ra1 17.Na1 Bf8-/+ (17...Qa1? 18.Qg7 Bf8 19.Qh8+-)) 17.N1d2 b6 18.f4 (18.Ra4 Qa4 19.Ra1 Qd7=) 18...Nh6+= 19.Rae1 (19.Ra4 Qa4 20.Rc1 Nf5+=) 19...Nf5-/+ 20.Qh3 h5 21.g4 (21.Ra1 g5+=) 21...Ng7 22.Re3 (22.Ra1 Qb5-/+) 22...Qc8 23.c4? (better is 23.g5-/+) 23...dc4-+ 24.Nc1 Kd7 25.f5? (25.g5-+) 25...gf5 26.gf5 Nf5 27.Rf5 (27.Re4 Rg8 28.Kh1 Qc6-+) 27...ef5 28.Qf5 Kc7 29.Qc2 Rg8 30.Kf1 Qa6 (30...b5 31.Rb3-+) 31.d5 (31.Ne4 Kd8-+) 31...c3 (better is 31...Bc5 32.Rc3 Rg1 33.Ke2 Ra1-+) 32.Re2 (32.Nd3 Rf4 33.Nf3-+) 32...Bc5 (32...Rf4 33.Nf3 Rf3 34.Ke1 Rg1) 33.d6 Kb8 34.Nf3 (34.Qg6 Rg6 35.Ke1 Rg1 36.Nf1 Ra1 37.Kd1 Qd3 38.Rd2 Qd2) 34...Rf4 (34...Rag4 35.Qg6 R8g6 36.Nd4 Rf4 37.Ke1 Rg1) 35.Ke1 Rf3 0–1. Leinonen,Lasse – Luoma,Jaska, Tampere We Ch TSP, 1989. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

5.bc5 Nc5 6.c3 Bd7 7.d4 Ba4 8.Qd2 Nd7 9.Bd3 Qa5 10.Ng5 (10.Ba3!?+=) 10...h6= 11.Nh3 Bb5 12.0-0 Ne7 13.Kh1 (13.Bb5 Qb5 14.Ba3 Rc8=+) 13...Bd3 14.Qd3 Qa6 (14...Nf5 15.Nf4=+) 15.Qd1 (15.Qa6 ba6 16.a3 Nb6=) 15...Ng6 16.f4 Be7 17.g4 (17.f5 ef5 18.Rf5 Rc8=+) 17...h5 18.gh5 (18.f5 Nge5 19.fe6 fe6 20.de5 hg4=+) 18...Rh5 19.Ng5 (19.Qh5 Qf1 Double attack (19...Qf1 Deflection; 19...Qf1 Overloading)) 19...Bg5 20.fg5 Ne7 21.Nd2 g6 (worse 21...Rg5 22.Nc4 Qc4 23.Bg5=) 22.Nf3 Nf5 23.Rf2 (23.Bf4 Rc8=+) 23...Kf8 (23...Ng3! 24.Kg1 Ne4-/+) 24.Bf4 Kg7 25.Kg1 Nb6 26.Qb3 Rc8 27.Rd1 Na4 Attacks the backward pawn on c3 28.Rc2 Qc6 29.Rb1 b6 (29...Nc3? 30.Rbc1 (30.Qb7 Qb7 31.Rb7 Rh3-/+) 30...Qa6 31.Rc3 Rc3 32.Qc3 Qa2 33.Bd2+-) 30.Kf2 Rh3 (30...Nc3? 31.Rbc1 Ne4 32.Ke2+-) 31.Bg3 (31.Rbc1 Qe8=+) 31...a6-/+ (31...Nc3 32.Rbc1 Ng3 33.hg3+-) 32.Rbc1 b5 33.Ng1 (33.Bf4 Qe8-/+) 33...Rhh8 (33...Rh5 34.Nf3-/+) 34.Nf3 Rc7 35.Ng1 (35.Bf4 Nb6=+) 35...Qb6 (35...Nb6 36.Nf3-/+) 36.Ne2 Rc4 37.Kf3 Qd8 38.Kg4? (38.Bf4 Rh3 39.Kg2 Qh8-/+) 38...Qg8 (38...Ne3 39.Kf3 Nc2 40.Rc2 Qg5 41.Kf2-+) 39.Nf4? (better 39.Kf3-/+) 39...Qc8 40.Be1 Qc7 (40...Ne3 41.Kf3 Nc2 42.Rc2-+) 41.Bg3? (41.Kf3 Qe7 42.Rd1 Qg5-+) 41...Rc8 (41...Ne3 42.Kf3 Nc2 43.Rc2 Nc3 44.Kg2-+) 42.Ne2 (42.Bf2 Nc3 43.Kf3 Ne4 44.Rc4 bc4-+) 42...Ne3 43.Kf3 (43.Kf4 Nc2 44.Rc2 Nc5 45.Qc4 bc4 46.dc5 Qc5-+) 43...Nc2 (43...Nc2 44.Rc2 Nc3-+) 0–1. Chinchik,Yuri – Sultangareev,Marat, RUS–ch sf Ufa, 1999. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

5.bc5 Nc5 6.d4 Ne4 7.Bd3 Bb4 8.Bd2 Nd2 9.Nfd2 Nh6 10.c3 Be7 11.0-0 0-0 12.f4 (12.Qc2 Nf5+=) 12...f6 13.Qc2 f5 14.h3 g5 (14...Bd7 15.Qb2=) 15.g4 (15.fg5!? Bg5 16.Nf3+=) 15...gf4= 16.gf5 Nf5 17.Rf4 Bg5 18.Rf3 Be3 19.Kf1 Qg5 20.Bf5 Rf5 21.Rf5 Qg1 (21...ef5 22.Nf3 Qh5 23.Qg2 Kh8-/+) 22.Ke2+= ef5 23.Qb3 Kg7 (23...Qh2 24.Kd3 Qh3 25.Qd5 Kg7 26.Nc4+=) 24.Qd5 Bd2 (24...Qf2 25.Kd3+-) 25.Kd2+- Qh2 26.Ke1?? (26.Kc1 Qh3 27.Kc2 f4+-) 26...Qh3?? (better 26...Qb2 27.Qd8 Qa1 28.Qe7 Kh6 29.Qf6 Kh5 30.Qf7 Kh4 31.Qh7 Kg3 32.Qg8 Kf4-+ (32...Kh3?! 33.Kf2 Qb2 34.Kf3=)) 27.Qd6+= Qh6 (27...Qe3!? 28.Kd1 f4+=) 28.Qh6+- Kh6 29.Nd2 Be6 30.Rb1 b6 (30...Ba2 31.Rb7 a5+-) 31.Rb4 (31.c4 Re8+-) 31...Kg5 (31...Rd8 32.Ke2+=) 32.Kd1 (32.c4 f4+-) 32...f4 (32...Rd8 33.Ke2=) 33.c4 (33.Ne4 Kg4+=) 33...Kh4 (33...Bg4 34.Ke1=) 34.d5 (34.Ke1 Kg4+=) 34...Bg4 35.Ke1 Kg3? Black prepares f3 (35...Re8!? 36.e6 Be6 37.de6 Re6 38.Kf2 Kg4+=) 36.e6 (36.Ne4 Kf3 37.Nf6 Bf5+-) 36...f3 (better 36...Be6!? 37.de6 Re8+-) 37.Ne4+- Kf4 ½–½. Zeynalova,H – Tairova,A, EYCC G10 Halkidiki GRE, 2001. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 Nd7)

4.e5 f6

5.bc5 Bc5 6.d4 Bb6 7.Bd3 (7.Bb5 Bd7 8.Na3 fe5 9.Ne5 Nf6=) 7...Nc6 8.0-0 Bd7 (8...Nge7 9.ef6 gf6 10.Bb2+=) 9.c3 (9.ef6 gf6 10.c3 e5+=) 9...f5 (9...fe5!? 10.Ne5 Ne5 11.de5 Qh4=) 10.Na3+= a6 (10...Nge7 11.Nb5 0-0 12.Rb1+-) 11.Rb1+- Ba5 (11...Nge7 12.Qb3 Bc7 13.c4+=) 12.c4 Nge7 (12...Rb8!?+-) 13.Rb7+- Nb4 (13...0-0 14.Be2+-) 14.Qb3 (14.Bd2 Nd3 15.Ba5 Qa5 16.Qd3 Bc6+-) 14...Nd3+- 15.Qd3 Bc6 16.Rb2 dc4 17.Nc4 0-0 (17...Be4 18.Qa3 Bc7 19.Bg5+-) 18.Na5 (18.Bg5!? Bc7 19.Qa3 Bf3 20.Be7 Qd4 21.Bf8 Rf8 22.Qf3 Qc4+-) 18...Qa5+- 19.Bd2 (19.Bg5 Be4 20.Qd2 Qd8+-) 19...Qd8 (19...Qa4 20.Ng5 Rab8 21.Rb8 Rb8 22.Ne6 Qa2 23.Nc7+=) 20.Rc1 (20.Bb4 Qd7 21.Be7 Qe7+-) 20...Bf3 21.gf3 Nd5 Black plans f4 (21...f4 22.Bb4+-) 22.Rc6 Qe8 (22...Qe7 23.Ra6 f4 24.a4+-) 23.Ra6 Ra6 24.Qa6 f4 25.Bb4 Qg6 26.Kh1 Re8 27.Bd6 h6 (27...Rd8 28.a4+-) 28.a4+- Qh5 29.Qd3 Ra8 (29...Rc8 30.Rb1+-) 30.a5 Qe8 (better 30...g6 31.Ra2 Kh7+-) 31.a6 Qc6 (31...Qc8 32.Kg2 Qd8+-) 32.Rb8 (better 32.Rb7 Qe8 33.a7+-) 32...Rb8+- 33.Bb8 Nb4 34.Qb3 (34.Qe2 Na6 35.Bd6 Nc7+-) 34...Qa6+= 35.Kg2 Nd5 36.Bd6 (36.Qc2!?+=) 36...Qe2 37.Qb8 Kf7 38.Qb7 (38.Qf8 Kg6 39.Kg1 Qd1 40.Kg2 Qd2 (40...Qd4 41.Qe8 Kh7 42.Qe6+-) 41.Qe8 Kh7-+) 38...Kg6=+ 39.Qb1 (39.Kg1!?=+) 39...Kh5-/+ 40.Bf8?? (better 40.Kg1-/+) 40...Ne3-+ 41.Kg1 Nd1 (41...Nd1 42.Qd1 Qd1 43.Kg2 g5-+) 0–1. Strater,Heinz (2095) – Bruemmer,Frank (2280), NRW Class1, 2009. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.bc5 Bc5 6.d4 Be7 7.Bd3 Nc6 8.0-0 Nb4 (8...Bd7 9.a3+=) 9.Ba3 (9.Be2 Bd7+=) 9...Nd3 10.Qd3 f5 (10...Bd7 11.Be7 Ne7 12.Nbd2+=) 11.c4 (11.Nbd2 b6+-) 11...a6 (11...dc4 12.Qc4 Bd7 13.Rd1+=) 12.cd5 (12.Be7 Ne7 13.c5 b6+-) 12...Qd5 13.Nc3 Qa5 (13...Qd7 14.Be7 Ne7 15.Rfb1+-) 14.Bb2 (14.Be7 Ne7 15.Nd2 0-0+-) 14...Ba3 (14...b5!?+=) 15.Ba3+- Qa3 16.Nd2 (16.Rab1 b5+-) 16...b5 17.Qf3 Rb8 (better 17...Ra7!?+-) 18.Nb5!+- Qf3 (18...ab5 19.Qa3 Discovered attack; 18...Rb5 19.Qa3 Discovered attack) 19.Nd6 (19.Nf3? ab5 20.Rfb1 Ne7-+) 19...Ke7 20.Nf3 Nh6 21.Rfc1 (21.Ng5 Rb4 22.Rab1 Rd4+-) 21...Rd8 (21...Bd7 22.Rc7+-) 22.Ng5 (22.Rc8?! Rdc8 23.Nc8 Rc8+-; 22.Nc8?! Rbc8 23.Rab1 Rc1 24.Rc1 f4+-) 22...Bd7 23.Rab1 a5 (23...Bc6 24.a3+-) 24.h3 (24.Rb7 Rb7 25.Nb7 Rb8+-) 24...Rb4 25.Rb4 ab4 26.Rc4 (26.Rc7 f4+-) 26...Ra8 27.Rb4 Ra2 28.Nh7 Ra1 (28...Nf7 29.Nf7 Kf7 30.Ng5 Kg6 31.f4 Ra1 32.Kf2 Ra2 33.Kg3+-) 29.Kh2 Ra2 30.f3 Nf7 31.Nf7 Kf7 32.Rb7 (32.Ng5 Kg6 33.h4 Rd2+-) 32...Ke8 (32...Ke7 33.Ng5 Rd2 34.Rb8+-) 33.Ng5 (33.Rb8 Ke7+-) 33...Rd2 (33...Rc2 34.h4+-) 34.Rb8 Ke7 35.Rg8 Rd4 36.Rg7 Ke8 37.Kg3 Rd2 (37...Rd5 38.h4 Kf8 39.Rh7+-) 38.Nh7 (38.h4 Rd1+-) 38...Bb5 39.h4 Bf1 40.Kh3 Rf2 (40...Re2 41.h5 Re1 42.h6+-) 41.Kh2 Re2 (41...Rb2+-) 42.h5 Re5 (42...Rd2 43.h6 Rd4 44.Nf6 Kf8+-) 43.h6 f4 (43...Re2 44.Nf6 Kf8 45.Nd7 Ke8 46.h7 Rg2 47.Rg2 Bg2 48.Ne5 Bf3 49.h8Q Ke7 50.Qh4 Kd6 51.Nf3+-) 44.Nf6 Kf8 (44...Kd8 45.h7 Rh5 46.Nh5 Bb5 47.h8Q Be8 48.Nf6 e5 49.Qe8) 1–0. Rioboo de Larriva,Alvaro (2235) – Diaz Rodriguez,JA (2085), Almansa ESP, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.bc5 Nc6 6.Bb5!?+=.

5.bc5 Nc6 6.d4 fe5=+ 7.de5 (7.Ne5 Ne5 8.de5 Bc5=+) 7...Bc5 8.Bd3 Nh6 (better 8...Nge7=+) 9.Ng5? (better 9.Bh6!? gh6 10.0-0=) 9...Ne5-/+ 10.Bh7?? (better 10.Qh5 Nhf7 11.Bb5 Bd7 12.Ne6 Bf2 13.Kf2 Qb6 14.Kg3 Qe6 15.Bd7 Nd7 16.Qg4-+) 10...Qf6 (10...Nhg4 11.f4 Qf6 12.Qe2-+) 11.Qe2 Nc6 (11...Nc4 12.c3 Nf7 13.Nf7 Rh7 14.Ng5-+) 12.c3 g6 13.Qc2 (13.h4 Bd7 14.h5 0-0-0 15.hg6 Ng4-/+) 13...Ne7 14.h4 Nf7 15.Kf1 (15.Ba3 A) 15...Ng5?! 16.hg5 Qe5 17.Kf1 Ba3 18.Na3-+ (18.Bg6?? Kf8 19.Bh7 Bc5-+); B) 15...Ba3 16.Na3 Qg7-+) 15...Ng5 (better 15...Qg7 16.Ba3 Ba3 17.Na3 Ng5 18.hg5 Rh7 19.Rh7 Qh7 20.Kg1-+) 16.Bg5 Qg7 17.Be7 Be7?? (17...Ke7 18.Bg6 Bd7-+) 18.Bg6+= Kd8 19.h5 Bd7 (19...Kc7 20.Nd2+=) 20.Nd2+= Rc8 Attacks the isolani on c3 21.Rh3 d4 (21...Rc7 22.Rb1+=) 22.Ne4+- dc3? (22...e5 23.Rg3+-) 23.Rc3 (better 23.Rd1 Qe5 24.h6+- (worse 24.Nc3 Rc7+-)) 23...Bb4?? (better 23...Rc3 24.Nc3 Bc6+-) 24.Rc8+- Bc8 25.Rd1 Bd7 26.Qc4 (26.a3!? Qe5 27.ab4 Ke7+-) 26...Qe7 27.Qd4 Rf8 (27...e5 28.Qc4 Rh6 29.Ng5 Rg6 30.hg6 Qg5 31.Qd5+-) 28.Qa7 (better 28.Rb1 b6 29.Rb4 e5+-) 28...Kc8 (28...Kc7 29.h6 Bc6 30.Rb1+-) 29.a3! Ba3 30.Qb6 (better 30.h6 Bb4+-) 30...Bc6 31.Qd4 (31.Kg1 Qb4 32.Qa7 Bb2+-) 31...Be4 (better 31...Rd8!? 32.Qd8 Qd8 33.Rd8 Kd8+-) 32.Be4+- Bc5 33.Rc1 (33.Qa1 Kb8 34.f3 Bb6 35.Qe5 Qc7 36.Qe6 Qc5 37.Qd6 Qd6 38.Rd6 Be3+-) 33...b6 34.Bf3 Kb8?? (better 34...Qg5 35.Rc2 Rd8+-) 35.Qe4 (35.Qe4 Qa7 36.h6+-) 1–0. Focke,Adrian (1695) – Zimmer,Luca, Deutsche Laendermeisterschaft, 2016. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.bc5 Nc6 6.ef6 Qf6? (better 6...Nf6!? 7.d4 Be7+=) 7.d4+- Bc5? (better 7...h6 8.c3 Nge7+-) 8.Bg5+- Bb4 (8...Qf8 9.dc5 Nf6+-) 9.c3 Qf8 10.cb4 Qb4 11.Qd2 (11.Bd2 Qe7+-) 11...Nf6 12.Bf6 (12.Nc3 Ne4 13.Ne4 de4+-) 12...gf6 (12...Qd2 13.Kd2 gf6 14.Nc3+-) 13.Qb4 (13.Nc3!? Rg8+-) 13...Nb4 14.Kd2 Rg8 15.Bb5 (15.Nc3 Kf7+-) 15...Ke7 (15...Bd7 16.Bd7 Kd7 17.g3+-) 16.Rg1 (16.g3 Bd7 17.Be2 Nc6+-) 16...Kd6 17.Nc3 a6 18.Ba4 b5 19.Bb3 Bd7 20.Rac1 Nc6 21.a3 (21.g4 Rac8+-) 21...Rg4 22.h3 (22.Ke3 Na5 23.Ba2 Rag8+-) 22...Rg7 (22...Nd4 23.Bd5 (23.hg4?! Nb3 24.Ke2 Nc1 25.Rc1 Rg8=) 23...ed5 24.hg4 Nb3 25.Kd3 Nc1 26.Rc1+-) 23.g4 h6 24.Ba2 Re8 25.Rce1 Rc8 26.Ne2 e5 27.de5 fe5 28.Ng3 Rf7 (28...Rf8 29.Ke3 Rgf7 30.Ne4 de4 31.Rd1 Ke7 32.Bf7 ef3 33.Bd5+-) 29.Nf5!+- Bf5 30.gf5 Rf5? (better 30...Rf6 31.Rg6 Rcf8+-) 31.Rg6 Kd7 (31...Ke7 32.Bd5 Rd8 33.Re6 Kf7 34.Rc6 Rd5 35.Ke3 Rf6+-) 32.Bd5 Ne7 (32...Nd8 33.Ne5 Kc7 34.Ra6 Rf2 35.Ke3+-) 33.Be6 (33.Be6 Kd8 34.Bf5 Ng6 35.Bg6+-) 1–0. Steiniger,Florian (1865) – Belis,Rudolf (1950), SVK, 2018. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.bc5 d4 6.Bb5 Nc6 7.c3 dc3 (better is 7...Bc5!? 8.0-0 Bd7+=) 8.Nc3 Bc5 9.Ne4 Be7 10.0-0 Nh6 11.d3 Nf7 12.Bb2 (better is 12.ef6!? gf6 13.Rb1+/-) 12...f5+= 13.Ned2 Bd7 14.a4 Nb4 (better is 14...0-0!?=) 15.Bc4+/- 0-0 16.Qb3 Bc6 17.Nd4 Bd5 18.Bd5 Qd5 19.Ne6 Qb3 20.Nb3 Rfc8 21.d4 Ng5 22.Ng5 Bg5 23.Nc5 Nd5 24.Bc1 (24.Nb7 Rcb8 25.Nd6 Rb2-/+) 24...Bc1 25.Rac1 Rc7 26.Nb3 Kf7 27.Rc7 Nc7 28.Rc1 Nd5 29.Kf1 g5 30.Nc5 Rc8 31.Nd3 Rd8 32.Ke2 Ke7 33.g3 h6 34.Rc4 Rd7 35.Nc5 Rc7 36.Kd3 Kf7 37.Nb3 Rd7? (37...b6 38.Rc7 Nc7 39.Kc4+-) 38.Rc8 (38.e6!? Ke6 39.Nc5 Kd6 40.Nd7 Kd7+-) 38...Ne7 39.Nc5 Rd5?? (better is 39...Rd4 40.Kd4 Nc8 41.Nb7 Ke6+-) 40.Rc7 b6 41.Nb3 (41.Nb7 Ke6 42.Kc4 Rd7 43.d5 Nd5 44.Rd7 b5 45.Kd4 Kd7 46.Kd5 ba4 47.Nc5 Ke7 48.Na4 h5+-) 41...Ke6 42.Kc4 Rd8 43.Ra7 Rc8 44.Kb5 Rc2? (better is 44...Rc3 45.Kb4 Rc2+-) 45.d5! Kd5 (45...Kd5 46.Rd7 Double attack (46.Re7 Deflection; 46.Kb6 Zwischenzug); 45...Nd5 46.Nd4 Double attack) 46.Re7 Rf2 (46...Rb2 47.Rd7 (47.Kb6?! Rb3 48.Ka6 Rb2+=) 47...Ke5 48.Rd3+-) 47.Rd7 (better is 47.Nd2! f4+-) 47...Ke5 48.Kb6 f4 49.gf4 Rf4 (49...gf4 50.Rd2 Rf1 51.Rd3+-) 50.Nd4! g4 (50...Rd4 51.Rd4 Combination) 51.a5 Rf2 52.a6 Rb2 53.Kc6 Rh2 (53...Ra2 54.a7 Ra7 55.Ra7 Kd4+-) 54.Rd5 Ke4 55.Ra5 Rf2 56.Ne6 Rc2 (56...Rf7 57.Nc5 Kf4+-) 57.Nc5 Kd4 58.a7 1–0. Horak,Martin (1925) – Petras,Mi (2025), 40th Vsetin Open, 2015. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.bc5 fe5 6.Ne5 Qf6 7.Bb2 Bc5 8.Bb5 Bd7 9.Qh5 g6 10.Qe2 d4 (10...Nc6 11.Bc6 bc6 A) 12.Nd7?! Bf2 13.Qf2 Qb2 14.Qf8 Kd7 15.Qa8 Qe5 (15...Qa1?? 16.Qa7 Kd6 17.0-0+-) 16.Kf2 A1) 16...Qa1 17.c3 (17.Qa7 Kd8 18.Qb8 Ke7+-) 17...Qa2 18.Qb7 Kd6 19.Qb8 Kd7 20.Rf1+-; A2) 16...Qf4 17.Ke2 Qe5 18.Kd3 Qa1=; B) 12.0-0+-) 11.Nd7 (11.c3 a6 12.Ng4 Qf5 13.Bd7 Nd7 14.cd4 Bd6+-) 11...Nd7 12.Bd7 Kd7 13.Qb5 Kd6 14.0-0 (14.Qb7 Qe5 15.Kd1 Qd5 16.Qa6 Qc6 17.Qc6 Kc6+-) 14...Ne7 (14...b6 15.c3 e5 16.cd4 ed4 17.Qa4+-) 15.Na3 (15.c3 Nc6+=) 15...b6 16.Rae1 (16.c3 Nd5+=) 16...Nc6 17.Nc4 Kc7 18.d3 (18.f4 Rhf8+=) 18...Rhe8 19.a4 a6 20.Qb3 Rab8 21.f4 Nb4 (21...Kd8 22.Ne5 Na5 23.Qa2+-) 22.Ne5+- Nc6 (22...Nd5 23.Qc4 Rec8 24.Bd4+-) 23.Nc6 (23.Qc4 Qe7 24.Nc6 b5+-) 23...Kc6 24.Re5 Rbd8 25.g3 (25.Qc4 Kb7 26.Rc5 bc5+-) 25...h6 (25...Rd5 26.Rfe1 Re5 27.Re5+- (27.fe5?! Qg5=)) 26.Rfe1 Rd6 27.a5 Kc7 (27...ba5 28.Qa4) 28.ab6 (28.Qc4 Kb7+-) 28...Bb6+- 29.Qa4 Ra8 (29...Rc8 30.Qa6 Kd8 31.Qa2+-) 30.Ba3 Rc6 31.Qc6! Kc6 32.Re6 (32.Re6 Qe6 33.Re6 Kb5 34.Rg6+-) 1–0. Cruz Ravina,Francisco Javier (2335) – Diaz Rodriguez,JA (2055), Lucena ESP, Andalucia Youth Ch, 2012. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

5.Nh4 g6 6.Nf3 Bg7 (6...cb4 7.ef6 Nf6 8.a3=+) 7.c3 (7.bc5 fe5 8.Bb2 Qc7=) 7...Ne7 (7...cb4 8.ef6 Bf6 9.d4 bc3 10.Nc3=+) 8.d4 (8.ef6!? Bf6 9.bc5+=) 8...cd4 9.cd4 (9.ef6 Bf6 10.cd4 Qb6=) 9...0-0 (9...fe5 10.Ne5 Qd6=+) 10.h4 (10.ef6!? Bf6 11.Bh6=) 10...Qb6 (10...fe5 11.Ne5 Qb6 12.Be3-/+) 11.h5 (11.ef6!? Bf6 12.Bg5=+) 11...fe5-/+ (11...Qb4?! 12.Bd2 Qb6 13.ef6 Bf6 14.hg6 Ng6 15.Nc3=+) 12.a4 (12.Bg5!? Nec6 13.hg6 hg6 14.Nh4-/+) 12...e4-+ (12...Qb4?! 13.Nbd2 Rf3 14.Qf3-/+) 13.a5 Qb4 14.Bd2 Qd6 15.Ne5 Be5 16.de5 Qe5 17.hg6 Ng6 (17...Qa1?! 18.gh7 Kf7 19.Bc3=) 18.Bc3 Qf4 19.Ra2 (19.Bd4 e5 20.Bc5 Rd8-+) 19...Nc6 20.g3 (20.Rh3 Qf7 21.Qb3 e5-+) 20...Qf3 21.Bg2 (21.Qf3 ef3 22.Rb2 e5-+) 21...Qd1 22.Kd1 Nce5 (22...e5 23.Ke1-+) 23.Ke1 (23.Bf1 Nf3-+) 23...Bd7 (better 23...Nd3 24.Kf1-+) 24.Nd2 (24.Bf1-+) 24...Nd3 25.Kf1 (25.Ke2 Rf2 26.Ke3 e5 27.Ne4 d4 28.Bd4 Ra2 29.Nf6 Kg7 30.Nh5 Kf8 31.Bb7 Rd8 32.Ba7 Bg4 33.Rf1 Ke7-+) 25...Nf2 (25...Rf2 26.Kg1 e3 27.Bf1-+) 26.Kg1 (26.Ke1 Rac8 27.Ra3 d4 28.Ne4 Ne4 29.Be4 dc3 30.Bb7 Rc5-+) 26...Nh1 27.Bh1 Rac8 28.Bd4 a6 29.Nb3 Bb5 30.Nc5 (30.Bg2 e5 31.Bc5 Rf6-+) 30...Rf1 31.Kh2 e5 (better 31...Rd1 32.Ne6 Rc6 33.Nd8 Rd4 34.Nc6 bc6 35.Bg2-+) 32.Bf2 (32.Be3 d4 33.Bd4 ed4 34.Ne4 d3-+) 32...Rf2! 33.Rf2 Rc5 34.Kh3 (34.Rd2 Ne7-+) 34...e3 (34...e3 35.Ra2 e2-+) 0–1. Helin,Mikael – Johansson,Ingi, SWE–ch op Vaxjo, 1992. (=1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 f6)

3.Nf3 d6

4.Bb2 cb4 5.d4 Nf6 6.Bd3 Nbd7 7.0-0 Be7 8.a3 d5 9.e5 Ne4 10.ab4 Nb6 11.c3 Nc4 12.Bc4 dc4 13.Qe2 Qd5 14.Na3 Bd7 15.Rfe1 (15.Nc4?! Bb5 16.Rfe1 Nc3 17.Bc3 Bc4=; 15.Qc4?! Bc6+=) 15...Ng5 16.Ng5 Bg5 17.Qc4 Qc4 (better is 17...0-0!?+/-) 18.Nc4+- 0-0 19.Nd6 b6 20.Ra6 Be7 21.Rea1 Bd6 22.Ra7 Ra7 23.Ra7 Rd8 24.ed6 Be8 (24...b5+-) 25.c4 h6 26.b5 Kh7 27.Ba3 Kg6 28.f4 Kf5 29.Re7 (29.c5!? bc5 30.dc5 Bb5 31.Rf7 Ke4 32.Rg7 Ra8+-) 29...Ke4 30.Re8! Re8 31.c5 Ra8 32.d7 Ra3 (32...bc5 33.dc5 Kf4 34.Bb2+-) 33.d8Q Ke3 34.h3 1–0. Trescher,Manfred – Litterst,Reinhard, Bahn–chM Stade, 1992. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

4.Bb2 Qb6 5.b5 a6 6.Na3 ab5 7.Bb5 Bd7 8.Qe2 Bb5 9.Qb5 Nd7 10.0-0 Ra5 11.Qb3 Qa6 12.c4 Ngf6 13.Nb5 Qb6 14.e5 de5 15.Ne5 Bd6 16.Nd7 Kd7 17.Bc3 Ra6 18.Rab1 Rha8 19.Bf6 gf6 20.Qf3 Be5 21.d4 cd4 22.Nd4 Bd4 23.Rb6 Rb6 24.Qd3 (24.Rd1!? e5 25.c5 Rb2 26.Qf6 Raa2 27.Qe5 Rd2 28.Qd6 Kc8 29.Qf8 Kd7 30.Qf7 Kc6+-) 24...e5+/- 25.a3 Ke7 26.Qh7 (26.Re1 Bc5 27.Qh7 Ra3+/-) 26...Rb2 (26...Ra3 27.h4+=) 27.h4 (27.Rb1!? Rf2 28.Rb7 Kd6 29.Rb1 Ra3 30.Kh1+/-) 27...Ra3+= 28.h5 Raa2 29.Qe4 Bf2 30.Kh1 Bd4 31.h6 Rg2? (better is 31...Ra8!?+/-) 32.Qb7 Kf8 33.Qg2 Rg2 34.Kg2 Kg8 35.Rf6 Kh7 36.Kf1 e4 37.Rf7 Kh6 38.Rf4 1–0. Farkas,Gabor (2330) – Janos,Ivan (2120), SVK–chT2A, 2007. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

4.Bb5 Bd7 5.Qe2 Bb5 6.Qb5 Qd7 7.Qd7 Nd7 8.b5 Ngf6 9.Nc3 a6 10.ba6 ba6 11.Rb1 Be7 12.0-0 0-0 13.d3 Rfb8 14.Be3 h6 15.a3 Ne8 16.Nd2 Rb1 17.Rb1 Rb8 18.Rb8 Nb8 19.Nc4 Nc6 ½–½. Kliebe,Harry – Naiditsch,Evgenija, Bayern–chI Bank Hofmann 1st, 1997. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

4.bc5 dc5

5.Bb5 Bd7 6.Bd7 Qd7 7.0-0 Nc6 8.d3 Nge7 9.Nbd2 Ng6 10.a4 Be7 11.Bb2 0-0 12.Nc4 Qc7 13.Nfd2 b6 14.g3 a6 15.Ne3 b5 16.h4 h6 17.Qh5 Rad8 18.ab5 ab5 19.Bc3 Rd7 20.Ng4 (20.Ra6 Rb8 21.Rd1 Nd4=) 20...Nd4 21.Bd4 Rd4 22.Nf3 Rd6 23.Rfe1 Rb8 24.e5 Rdd8 25.Re4 Bf8 26.Ra6 Rb6 27.Rb6 Qb6 28.Ne3 Ra8 29.Qg4 Ra1 30.Kg2 Qb7 31.h5 Ne7 32.Nh2 Nc6 33.Kh3 Nd4 34.c3 Nc6 35.Qf3 Qe7 36.Neg4 Qg5 37.Nf6+= Kh8 38.Nd7 Kg8 39.d4 cd4+= 40.cd4 Ra3 41.Qe2 Qf5 42.Ng4 Be7 43.Kg2 Ra2! 44.Qa2 Qe4 45.f3 Qd4 46.Qa8 Nd8 47.Qc8 b4 48.Qc7 b3 49.Ndf6 Kf8 50.Ne4 Qa4 51.Nc3 Qd4 52.Nf2?? Qd2 53.Nce4 Qc2 54.Qc3 Nc6 55.f4 0–1. Rossi,Carlo – David,Alberto, It (open), Torino (Italy), 1998. (=1.e4 c5 2.Nf3 e6 3.b4 d6 4.bc5 dc5)

5.Bb5 Bd7 6.Bd7 Nd7 7.0-0 Ngf6 8.Nc3 Be7 9.e5 Nd5 10.Ne4 Qc7 11.Bb2 c4 12.Qe2 b5 13.a4 b4 14.Bd4 0-0 15.g3 (15.a5 a6=) 15...Rab8 16.Nd6 Bd6 17.ed6 Qd6 18.Ba7 Ra8 19.Bd4 Qc6 20.Rfe1 Rfe8 21.Qe4 (21.a5 e5 22.Bb2 c3 23.dc3 bc3+=) 21...f6 (21...Ra4!? 22.Ng5 Nf8-/+) 22.a5+= Nc5 23.Qg4 (23.Bc5 Qc5 24.a6 e5+=) 23...e5 (23...Na4!?-/+) 24.Bc5+= Qc5 25.Qd7 Re7 26.Qf5 g6 (26...Ra5?! 27.Ra5 Qa5 28.Qc8 Kf7 29.Qc4=) 27.Qe4 f5 (27...Ra5?! 28.Ra5 Qa5 29.Qc4+=) 28.Qh4 e4 (28...Ra5?! 29.Ra5 Qa5 30.Qc4= (30.Ne5? Re5 31.Re5 Qa1 32.Kg2 Qe5 33.Qc4 Qe4 34.Qe4 fe4-+)) 29.Ng5 Ra5 30.Nh7 Rea7 (30...Ra1 31.Ra1 Ra7 32.Ra7 Qa7 33.Qd8 Kh7 34.Qd5+=) 31.Ra5 Qa5 32.Nf6 Nf6 33.Qf6 Ra6 34.Qd4 Qc7 35.Rb1 Rb6 36.Ra1 b3 37.Ra8 Kf7 38.cb3 cb3 39.Rd8 Rb7 40.Qd5 Kg7 41.Qg8 Kh6 42.Qh8 Kg5?? 43.Qh4 1–0. Dergausov,Denis (2030) – Stavila,Irina (1955), Chisinau ULIM op, 2007. (=1.e4 c5 2.b4 d6 3.Nf3 e6 4.bc5+= dc5)

5.Bb5 Bd7 6.Qe2 Nc6 7.0-0 a6 8.Bc6 Bc6 9.Bb2 Nf6 10.d3 Be7 11.Ne5 Qc7 12.Nd2 b5 13.Ng4 Qf4 14.Nf6 Bf6 15.Bf6 Qf6 16.Nb3 Qe7 17.Qh5 c4 18.Na5 Qc7 19.Nc6 Qc6 20.f4 Rc8 21.Kh1 cd3 22.cd3 Qc2 23.f5 ef5 (23...Qd3? 24.fe6 0-0 25.e7 (25.ef7?! Kh8+/-) 25...Qe4 26.ef8R Rf8 27.Rae1+-) 24.ef5 0-0 (24...Qd3 25.Rad1 Qc3 26.f6 gf6 27.Rde1 Kf8 28.Qh6 Kg8 29.Re3 Qe3 30.Qe3+-) 25.f6 Qd3 26.fg7 Kg7 27.Rf3 Qd4 28.Raf1 Rc7?? (better is 28...f6=) 29.Rh3+- Qe4 (29...Rfc8 30.Qh7 Kf8 31.Rg3+-) 30.Qh6 (better is 30.Rg3 Qg6 31.Qe5 Kg8 32.Qc7+-) 30...Kg8 31.Rg3 Qg6 32.Rg6 hg6 33.h3 Rc2 34.Rf4 (34.Rf4 Rc4 35.Rc4 bc4 36.h4+-) 1–0. Xu,Xianliang (1845) – Franzenburg,Maria (1660), GER–chT Lands U20, 2008. (=1.e4 e6 2.Nf3 c5 3.b4 d6 4.bc5 dc5)

5.c3 Nf6= 6.e5 Nd5 7.d4 (7.Na3 Nc6+=) 7...cd4 8.cd4 Nc6 9.a3 Be7 10.Bd3 b5 (10...0-0 11.0-0+=) 11.Nbd2 a6 12.Nb3 Bb7 13.Bd2 b4 (13...0-0 14.Nc5 Qc7 15.Nb7 Qb7 16.Qb1=) 14.ab4 (14.0-0 0-0+=) 14...Ncb4= (worse is 14...Bb4 15.0-0+/-) 15.Bb1 Rc8 16.Na5 Ba8 17.Qb3 Nb6 18.0-0 Bd5 19.Qb2 Bf3? (better is 19...Nc4!? 20.Nc4 Rc4=) 20.Bb4+/- (20.gf3?! N6d5=) 20...Bb4 21.Qb4 Ba8 22.Ra2 (22.Bd3!? Nd5 23.Qd2 0-0+/-) 22...Nd5 23.Qa4 Kf8 24.Rc2 Rc2 25.Bc2 g6 26.Nc4 (26.g3!?+=) 26...Kg7 (26...Nf4!? 27.Nd6 Bg2-+) 27.Nd6= Nf4 28.f3 Qg5 29.g3 Ne2 30.Kf2 (better is 30.Kg2!?=) 30...Nc3-/+ 31.Qd7 Qd2 32.Kg1 Rf8 (32...Qc2 33.Qf7 Kh6 34.Qf4 g5 35.Nf7 Kg7 36.Qf6 Kf8 37.Nd6 Kg8 38.Qf7) 33.Rf2?? (better is 33.Be4 Qe3 34.Kg2 Ne4 35.fe4 Be4 36.Ne4 Qe4 37.Kg1-/+) 33...Ne2 (33...Qe1 34.Kg2 Nd5 35.Nc4-+) 34.Kf1? (34.Re2 Qe2 35.Be4 Be4 36.fe4-+) 34...Qc2 35.Re2 Qd1 36.Kf2 Qh1 37.Ne4 Qh2 38.Ke3 Qg1 39.Kf4 Be4 40.fe4?? Qf1 41.Ke3 Rb8 42.Qa4 Qg1 43.Kf3 Rb1 44.Rf2 Qh1 45.Kf4 Re1 46.Qc2 Qh6 (46...Qh6 47.Kf3 Qh5 48.g4 Qh3 49.Kf4 Qe3) 0–1. Christensen,Bo Garner (2240) – Pedersen,Gunnar (2230), 51st Team Ch, 2013. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

5.Nc3 Nc6 6.Bb5 Bd7 7.0-0 Nd4 8.Bd7 Qd7 9.d3 Nf6 10.Bf4 Be7 11.Rb1 0-0 12.Ne5 Qc8 13.Nc4 Rd8 14.Re1 b6 15.Nb5 Nb5 16.Rb5 Qc6 17.a4 Ne4? (better is 17...Nd7+=) 18.Qf3+- f5 19.de4 fe4 20.Qg4 (20.Re4?? Qe4 21.Ne3 Qf3 22.gf3 Rd4-+; 20.Qe4?? Qe4 21.Ne3 Qf4-+) 20...Qd5 21.Ne3 Qa2?? (21...Qc6+-) 22.Be5 Bf8 23.Ra1 (23.Ra1 Qa1 24.Ba1+-) 1–0. Westphal,Wolfgang (2215) – Rathje,Christian (2150), OLNN, 2008. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

5.Bc4 Nc6 6.0-0 Be7 7.Bb2 Nf6 8.d3 0-0 9.Nbd2 Qc7 10.h3 a6 11.a4 Rb8 (11...Bd7 12.Nb3=) 12.a5+= Rd8 (12...Na5?? 13.Be5 Bd6 14.Bd6 Qd6 15.e5+-) 13.Nb3 (13.Bb3 Ne8 (13...Na5? 14.Be5 Rd6 15.Ra5 Qa5 16.Nc4+-) 14.Nc4 Nd6+=) 13...Nd7 (better 13...Ne4!? 14.Qc1 Nf6=+) 14.Qe1 Nb4 (14...Nde5 15.Ne5 Ne5 16.Nd2+=) 15.Qc3 (15.Qe2 b5 16.ab6 Nb6+-) 15...Bf8 (15...Bf6 16.e5 Be7 17.Nbd2=) 16.Nh2 (16.Rfb1 b5 17.ab6 Nb6+=) 16...e5? (16...b5!? 17.ab6 Nb6=) 17.f4 Nc6 (17...ef4 18.Ng4 Decoy) 18.Ng4+- Re8?? (better 18...b5 19.Bd5 Kh8 20.fe5 b4+-) 19.fe5 Nde5 20.Rf7!! Nf7 21.Nh6 Kh8 22.Nf7 (22.Bf7?! Re5 23.Bd5 gh6 24.Bc6 Bg7=) 22...Kg8 23.Nd6 (better 23.Rf1!? Be6 24.Nh6 Kh8 25.Rf8 Rf8 26.Be6 Rbe8 27.Qc5 Qe7+-) 23...Be6 24.Ne8 Re8 25.Rf1 (25.Be6 Re6 26.Qc4 Qd7+-) 25...Bc4 (25...Nd8 26.Ba3+-) 26.Qc4 (26.dc4?! Re4 27.Qf3 Qe7+=) 26...Kh8 27.Qe6! Rd8 (27...Re6 28.Rf8) 28.Qf5 (28.Rf7 Qc8 29.Qc4 Rd7+-) 28...Qc8 (28...Qe7+-) 29.Nc5 Bc5 (29...Qf5 30.Rf5 Kg8+-) 30.Qc5 Rg8 31.Rf7 Qb8 (31...Qd8 32.Bg7! Rg7 33.Rf8 Qf8 34.Qf8 Rg8 35.Qf6 Rg7+-) 32.Qg5 Qa7 33.Kh1 Nd4 34.Qe5 Ne2 35.Qg7! (35.Qg7 Rg7 36.Rf8) 1–0. Yurtseven,Melih (2240) – Temel,Burcu Melis (1725), 11th Kesan Open, 2013. (=1.e4 c5 2.Nf3 e6 3.b4 d6 4.bc5 dc5)

5.Bc4 Nc6 6.e5 Nge7 7.Nc3 (7.0-0!?=) 7...Ng6+= 8.Bb5 Bd7 9.Qe2 a6 10.Bc6 Bc6 11.Bb2 (11.0-0 Qc7+=) 11...Qc7 (11...Nf4!? 12.Qf1 Bf3 13.gf3 Qd4-/+) 12.0-0+= Be7 13.Ne4 0-0-0 (13...0-0 14.Qe3+=) 14.Rab1 Rhe8 (14...Nf4 15.Qe3 Nd5 16.Qb3=) 15.d4 (15.Rfd1 Nf4 16.Qe3 Nd5=) 15...f5 (15...cd4!? 16.Bd4 Bb5=) 16.Nc5+= Bc5 17.dc5 Qe7 18.Bc3 (better is 18.Qe3!?+=) 18...Nf4 19.Qe3 g5 (better is 19...Ng2!? 20.Rb7 Qb7 (20...Ne3?! 21.Re7 Nf1 22.Re8 Re8 23.Nd4-+; worse is 20...Bb7 21.Kg2 f4 22.Qe2 Qg5 23.Kh1-+; 20...Kb7?! 21.Kg2 f4 22.Rb1 Ka7 23.Qe2-/+) 21.Kg2 g5-+) 20.Ba5= Rd7 21.Rfd1 Ng2 22.Qg5?? (better is 22.Kg2 Rd1 23.Rd1+=) 22…Bf3-+ (22...Bf3 23.Qe7 Ree7-+ (23...Rd1?? 24.Rd1 b6 25.Qe8 Kb7 26.Rd8 Bc6 27.Qe7 Bd7 28.Qd7)) 0–1. Nagy,Helga – Zila,Laszlo, It (olympic system), Hajduboszormeny HUN, 1995. (=1.e4 c5 2.Nf3 e6 3.b4 d6 4.bc5 dc5)

5.d4 Nf6 6.e5 Nd5 7.c4 (7.dc5 Nc6=) 7...Nb6 (7...Nb4 8.a3 N4a6+-) 8.d5 (better 8.Bg5!? f6 9.ef6 gf6 10.Ne5 fg5 11.Qh5 Ke7 12.Qg5 Ke8 13.Qh5 Ke7 14.dc5+-) 8...ed5-/+ 9.cd5 Qd5 10.Bb5 Bd7 11.Bd7 N8d7 12.0-0 Qd1 13.Rd1 Be7 14.Bb2 (14.Nc3 Rc8-/+) 14...0-0 (14...Na4 15.Rd2-/+) 15.Na3 a6 16.Rab1 Rfd8 17.Bc3 (17.Ba1 Rac8-/+) 17...c4 18.Nc2 Bc5 (18...Na4 A) 19.Rb7? Ndc5 (19...Nc3?! 20.Rdd7 Rd7 21.Rd7=) 20.Rd8 Bd8-+; B) 19.Ba1 b5 20.Kf1-+) 19.Ncd4 (19.Ba5 Re8-/+) 19...Nd5 (19...Na4!? 20.Bb4 c3-+) 20.Ba5=+ Bb6 (20...N7b6=+) 21.Bb6 (21.Nf5 Nf4 22.Bb6 Nb6 23.Rd6-/+) 21...N7b6-/+ (21...N5b6?! 22.e6 fe6 23.Ne6=+) 22.e6 (22.Rbc1 Rac8-/+) 22...fe6 23.Ne6 Rdc8 (23...Rd7 24.Kf1-+) 24.Nfd4 c3 25.Rdc1 (25.Rbc1 Re8-+) 25...Rab8 (25...Kf7 26.Rc2-+) 26.Nf5-/+ Na4 (26...Nc4 27.Re1-/+) 27.Nfg7 c2 (27...Kf7 28.Rb3-+) 28.Rb3=+ Nf4 (better 28...Nc5 29.Nc5 Rc5-/+) 29.Nf4+- Kg7 30.Ne6 (better 30.Nd5!?+=) 30...Kf6 31.Nd4 b5 (31...Nc3 32.Rb6 (32.Rc2? Ne2 33.Ne2 Rc2-+) 32...Ke5 33.Nf3 Kf5 34.Rc2 Na2 35.Nh4 Kg5 36.f4 Kh4 37.Ra2 Rc1 38.Kf2+=) 32.h4 (better 32.Rf3!? Kg6 33.Re3+=) 32...Rc4=+ 33.Rf3 (33.Nc2? Rbc8-+ (33...Rh4 34.Nb4+-)) 33...Kg7 (33...Kg6 A) 34.Nc2 Rbc8-/+ (34...Rh4 35.Ne3 Rb6 36.Rg3 Kh5 37.Rc7+-); B) 34.Rg3 Kf7 B1) 35.Nc2? Rbc8-+ (35...Rh4 36.Ne3+-); B2) 35.Rf3 Kg8 B21) 36.Nc2? Rbc8-+ (36...Rh4 37.Ne3+=); B22) 36.Nf5=+) 34.Ne6 (better 34.Nf5!? Kg6 35.Ne3=) 34...Kh8 35.g3 Re8 36.Re3 Nc5 37.Nc5 Re3 38.fe3 Rc5 39.Kf2 Kg7 40.Ke2 Kf6 41.Kd3 Ke5 (41...Rd5 42.Kc2 Kf5+=) 42.g4 (better 42.Rc2!? Rd5 43.Ke2+-) 42...Rc4 43.Rc2 Rg4 44.Rc5 Kd6 45.Rh5 Ra4 46.Rh7 Ra2 47.h5 b4 48.Kc4 a5 49.Kb3 (49.Ra7!? Rc2 50.Kd4 Rd2 51.Ke4=) 49...Ra3=+ 50.Kb2 Re3 51.Rh6 (better 51.Ra7!?=+) 51...Kc5-+ 52.Ra6 (52.Rh8 Rh3-+) 52...Kb5 53.Rg6 Re2 54.Kb1 Ka4 55.h6 (55.Rg5 b3 56.Kc1 Kb4-+) 55...b3 (better 55...Rh2!? 56.Ra6-+) 56.Ra6 Rh2 57.Ka1 (57.Kc1 Kb4 58.h7 Rh7-+) 57...Kb5 58.Ra8 Rh6 59.Rb8 Rb6 (59...Kc4 60.Rg8-+) 60.Rh8 a4 61.Kb2 Kb4 (better 61...Rd6 62.Rb8 Kc4 63.Rc8 Kd3-+) 62.Rh4-/+ Ka5 63.Rh2? (better 63.Ka3 Kb5 64.Ra4=) 63...Rc6 64.Ka3 Rc5 (better 64...Kb5-+) 65.Rh4= Kb6 (65...Rb5 66.Ra4 Kb6 67.Kb2=) 66.Ra4 ½–½. Hilbert,Stephan J – Vollmer,Steve, FICGS, 2014. (=1.e4 e6 2.Nf3 c5 3.b4 d6 4.bc5 dc5)

5.e5 Nc6 6.Bb5 Bd7 7.0-0 Qb6 (7...Ne5 8.Ne5 Bb5 9.c4+=) 8.Be2 Qc7 9.Bb2 g6 (9...Nd4 10.Nd4 Qe5 11.Nb5 Qb2 12.N1c3 Bb5 13.Bb5 Kd8 14.Rb1+-) 10.Re1 (10.Nc3!?+/-) 10...Bg7+= 11.Bc4 Nge7 12.d3 0-0 13.Qe2 a6 14.Ng5 (14.Nbd2 Nf5=) 14...b5 15.Bb3 Nf5 16.f4 Qb6 17.Kh1 a5 18.c3 a4 19.Bc2 b4 20.Bd1 a3 21.Bc1 Rfd8 22.Ne4 Bc8 23.g4 Nfe7 24.Nd6 (24.Qf2 Rd3 25.Qc5 Qb7+=) 24...Bb7+= 25.Qg2 Nc8 0–1. Dekhtyarenko,Yaroslav – Ivashchenko,Mikhail, RUS–ch U10 Russia, 2004. (=1.e4 c5 2.b4 d6 3.Nf3 e6)

5.e5 Nd7 6.Bc4 Qc7 7.Qe2 Be7 8.d3 a6 9.a4 b6 10.0-0 Bb7 11.Bf4 0-0-0 (better is 11...g5!? 12.Ng5 Bg5 13.Bg5 Qe5 14.Qe5 Ne5=) 12.Nbd2 Nb8 13.Rfb1 Kd7 14.d4 Ke8 15.c3 Kf8 16.Rd1 cd4 17.cd4 Qc6 18.Nb3 h6 19.Ne1 Qe4 20.Qd2 g5 21.f3?? (better is 21.Be3!?+=) 21...Qc6?? (21...Qf4 22.Qf4 gf4 23.Nd3-+) 22.Be3?? (better is 22.Rdc1 gf4 23.Ba6+=) 22...a5?? (better is 22...Qc4 23.Qb2 Bd5-+) 23.Rdc1+/- Qd7 24.Qd3 Bc6 25.Bb5 Bb5 26.ab5 Qd5 27.Rc7 Ke8 28.Nd2 Nd7 29.Qc3 Bb4= 30.Qb2 Ne7 31.Ne4+/- Nf5?? 32.Rd7!+- Be7 33.Rd5 ed5 34.Nf6 Bf6 35.ef6 Kd7 36.Bf2 Rhe8 37.Nd3 Kc7 38.Ne5 Kb7 39.Qc2 Rc8 40.Qf5 Rf8 41.Qd7 Ka8 42.Nc6 Rc6 43.Qc6 Kb8 44.Qd6 Kb7 45.Rc1 Rc8 46.Qd7 Kb8 47.Rc8 1–0. Mance,Jelena (1840) – Ivekovic,Jelena, CRO–ch U17 Girls, 2004. (=1.e4 c5 2.Nf3 e6 3.b4 d6)

3.Nf3 Nf6

4.Nc3?? cb4 5.Na4 b5-+ (worse is 5...Ne4 6.a3-+).

4.Nc3?? Be7?? 5.Bb2?? (5.bc5 Bc5 6.e5 Ng4+=) 5...Nc6?? (5...cb4 6.Nb1-/+) 6.Bd3?? (6.b5!? Na5 7.Nb1+=) 6...d6 (6...cb4 7.Nb5-/+) 7.Qe2 (7.b5 Nd4=) 7...e5?? (better is 7...Nb4 8.e5 Nh5-/+) 8.0-0-0?? (better is 8.bc5!? Be6 9.Bb5+/-) 8...Bg4?? 9.h3? Nd4 10.Qe3 Bf3 11.gf3 Nh5?? 12.Nd5 Bg5-/+ 13.Qe1 Nf3?? 14.Qe2+/- Nd2 15.Qh5 Ne4?? 16.Kb1 Nf6?? 17.Qg5 Nd5 18.Bb5 Kf8 19.Qf5 Nc7?? 20.Bc4+- Qe7 21.Rd6!! f6 22.Rhd1 Na6 23.Qe6 Qe6 24.Re6 Re8 25.Rdd6 Re6+/- 26.Be6?? Ke7+= 27.Rd7 Ke6 28.Rb7 Kd6 29.Ra7 Nc7 30.Ra5 Rb8 31.Ba3 Rb5 32.Rb5 Nb5 33.Kb2?? g5?? 34.c4?? Na3-+ 35.Ka3 f5 36.Kb2?? g4-+ 37.hg4 fg4 38.Kc2 h5 39.Kd2 h4 40.Ke1 h3 41.Kf1 g3 42.fg3 e4 43.g4 e3 44.Ke2 h2 45.Ke3 h1Q 46.Kf4 Qa1 47.g5 Qa2 48.g6 Ke6 49.Kg5 Qg2 50.Kh6 Kf6 51.Kh5 Qg5 0–1. Kunze,Julius – Wieczorek,Oskar, Sachsen–ch op2 U08, 2002. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6)

4.e5 Nd5

5.Bb2 cb4 6.Bc4+=.

5.Bb2 Nc6 6.g3 (6.b5 Na5+=) 6...Rb8 (6...cb4 7.a3-/+) 7.Bg2 (better is 7.b5!? Nce7 8.Bg2+=) 7...Be7 (better is 7...Ndb4!? 8.0-0 Be7-/+) 8.0-0 ½–½. Fernandez Romero,Ernesto (2425) – Ivanov,Jordan (2405), Malaga op 7th, 2004. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5)

5.b5 b6 6.c4 Ne7 7.Bb2 (7.Bd3 a6=) 7...Bb7 8.Nc3 (8.d4 cd4 9.Bd4 d5 10.ed6 Nf5=) 8...d5 9.cd5 Nd5 10.Nd5 Qd5 11.Be2 Be7 12.0-0 Nd7 13.Re1 Nf8 (13...Rd8 14.Rc1 Ba8 15.Qc2=) 14.Qc2 (14.d4 Qe4=) 14...Ng6 15.Bd3 Rd8 16.Be4 Qd7 17.Bb7 Qb7 18.Qa4 0-0 19.Re3 Rd7 20.Qg4 Rfd8 21.Bc3 Rd3 22.h4 h6 23.Rae1 Qd7 24.h5 Nf8 25.a4 Qd5 26.Re4 Nh7 27.R1e3 Ng5 28.Ng5? (28.Rf4+=) 28...hg5?? (28...Bg5!? 29.f4 Re3 30.Re3 Qc4-/+) 29.h6 (better is 29.Re1!?=) 29...gh6-/+ 30.Qh5 Kg7 31.f4? Re3-+ 32.Re3 Qb3 33.fg5 Bg5-+ 34.Rf3 Rd7 35.Qg4 Qb1 36.Rf1 Qg6 37.Qe2 Qd3 38.Qg4 Qg6 Twofold repetition 39.Qe2 Rd3 40.Rf3 Rd5 41.Rf1 Rd3 42.Rf3 Rf3 43.Qf3 Qb1 44.Kh2 Kg6?? 45.Qe2? Qf5 46.g3-/+ h5 47.a5 h4 48.ab6 ab6 49.gh4 Qf4 50.Kg2 Bh4 51.Qd3 Kg5 52.Kh3? Qg4 53.Kh2 Bf2 54.Qd8 Kf4 55.Qf6 Qf5 56.Qh6 Kf3 57.d3 Qf4 58.Qf4 Kf4 59.Kg2 Bd4 60.Bd2 Ke5 61.Kf3 Kd5 62.Bf4 e5 63.Bg5 f5 64.Bd8 c4 0–1. Ridameya Tatche,JM (2140) – Ayas Fernandez,A (2285), Sitges op, 2002. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5)

5.b5 d6 6.c4 Nc7 7.Bb2 d5 8.d4 dc4 9.Bc4 cd4 10.0-0 Bc5 11.Nbd2 b6 12.Ne4 Bb7 13.Qd3 (worse is 13.Nc5 bc5 14.Bc1 Nd7-/+) 13...Nd5 14.Nc5 (better is 14.Bd4 Be7 15.Rfd1+/-) 14...bc5+= 15.Qe4 Qe7 16.Qg4 0-0 17.Ng5 Nd7 18.Rfe1 h6 19.Nf3 Rae8 20.Bc1 f5 21.Qg3 f4 22.Qg4 Nb4 23.Re2? (better is 23.Nh4!? Nc2 24.Bf4+=) 23...Nb6 24.Nd2? (better is 24.Bb3-+) 24...f3! (24...Nc4?! 25.Nc4 f3 26.Rb2-+) 25.Re4 (25.Nf3 Nc4; 25.gf3 Nc4) 25...Be4 26.Ne4 (26.Qe4 fg2 27.a3-+) 26...Nc4 27.Qg6 Ne5 (27...Ne5 28.Qg3 Nbd3 29.Bh6 Qc7-+) 0–1. Wehling,Ulrich (1650) – Darwisch,Khaled (1885), Muensterland Verbandsklasse–A, 2008. (=1.e4 c5 2.b4 e6 3.Nf3 Nf6 4.e5 Nd5)

5.b5 d6 6.h4 =.

5.b5 Be7 6.c4 Nc7 7.Bb2 0-0 8.Bd3 f5 9.ef6 Bf6 (9...Bf6 10.Bf6 Combination; 9...gf6 10.Ng5 Combination) 10.Nc3 Qe8 11.Qc2 Qh5 12.Rg1 Be7 13.0-0-0 d5 14.Rde1 d4 15.Ne4 Nd7 16.g4 Qh6 17.Rg3 g6 18.h4 White plans g5 18...b6 (18...Bh4? 19.Rh1 (worse is 19.Nh4 Qh4 20.Rgg1 b6-/+) 19...Rf3 20.Rf3+-) 19.g5 Qg7 20.h5 Rf4? (20...a6 21.hg6 hg6 22.Nf6 Bf6 23.gf6 Rf6 24.Bg6 Kf8+-) 21.hg6+- hg6 22.Nf6! Kf7 23.Nd7 Bd7 24.Bg6! Kg8 25.Rh1 Raf8 26.Rh7 Rf3 27.Rg7 Kg7 28.Bh5 R3f5 29.Qe4 Kg8 30.f4! Bd6 31.Bg4 R5f7 32.Rh3 Rg7 33.Rf3 Rgf7 34.Kc2 a6 35.a4 ab5 36.ab5 Kg7 37.Rh3 Rg8 38.Bd4! Kf8 39.Be5 Be5 40.Qe5 Bc8 41.Bh5 (41.Bh5 Ne8 42.Bf7 Kf7 43.Rh7 Kf8 44.Qb8+-) 1–0. Trescher,Manfred – Kampen,Hans, Regionalliga SW, 1999. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5)

5.bc5 Qa5 6.Be2 Bc5 7.0-0 Nc6 8.a3 (8.d4 Bb4+=) 8...a6 (8...Nf4!?=) 9.d4+/- Nc3? (better is 9...Bb4+/-) 10.Nc3+- Nd4 11.Nd4 (better is 11.Ne4!? Ne2 12.Qe2 b6+-) 11...Qc3 12.Be3 Ba3 13.Ra3! Qa3 14.Nb3 Qe7 15.Bc5 Qd8 16.Qd6 f6 17.ef6 Qf6 18.f4 Rg8?? (18...h5 19.Nd2 Kf7 20.Nc4+-) 19.Bc4 (19.f5 Kd8 20.Nd4 Rh8 21.Ne6 Ke8 22.Bh5 g6 23.fg6 Qf1 24.Kf1 de6 25.gh7) 19...Rh8? (19...g6 20.Nd2 Qf8 21.Qc7+- (21.Qf8?! Rf8 22.Bd3 b5+/-)) 20.Re1 (20.Nd2 Qd8+-) 20...Kf7? (better is 20...g6+-) 21.f5! Rd8 (21...Qf5 22.Qe7 Combination) 22.Bd4 Qe7 23.Qf4 Kg8 24.f6 Qf7 25.Qc7 Re8 26.Qg3 (26.fg7!? Qe7+-) 26...g6+/- 27.Qd6 b5? (better is 27...Kh8+/-) 28.Bd5+- ed5 29.Re8?? (better is 29.Re7 Ra7 30.Rf7 Kf7 31.Qd5 Re6 32.Ba7 Kf6 33.Bd4 Ke7 34.Qc5 Kd8 35.Be5 Re5 36.Qe5+-) 29...Qe8-+ 30.f7 Qf7 31.Qe5 Kf8 32.Nc5?? (better is 32.Qh8 Ke7 33.Qe5 Qe6 34.Qg7 Kd8 35.Be5=) 32...d6!-+ 33.Qd6 Qe7 34.Qf4 Ke8 35.Nd3 Bf5 36.Bc5 Qe6 37.Ne5 0–1. Lehmann,Peter (1935) – Gahn,Juliane, Leipzig VfB op, 2005. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5)

5.bc5 Nc6 6.c4+- Nf4 7.d4 Ng6 8.h4 Be7 9.h5 Nf8 10.Nc3 a6 11.d5 Bc5 12.h6 gh6 13.dc6 bc6 14.Ne4 Bb4 15.Bd2 Be7 16.Nh2 Ng6 17.Ng4 Bg5 (17...Qc7 18.Bc3+-) 18.Ngf6 (worse is 18.Ng5 hg5 19.Nf6 Kf8 20.Nh7 Kg8 21.Nf6 Kg7 22.Rh8 Qh8 23.Bg5 Ne5+-) 18...Kf8 19.Bb4 Ne7 20.Ng5 hg5 21.Qh5 h6 22.Qg5! c5 23.Rh6 Rg8 24.Ng8 cb4 (24...Qc7 25.Ne7 Qe5 26.Qe5 Ke8 27.Nd5 d6 28.Qd6 ed5 29.Rh8) 1–0. Berke,Ernst – Bester,Kazimierz, ZN–2008–0-00524, 2009. (=1.e4 B40: Sicilian: 2...e6, Unusual lines 'C00: French: Unusual White 2nd moves ' 1...c5 2.b4 e6 3.Nf3 Nf6 4.e5 Nd5)

5.bc5 Bc5

6.c3 Qc7 7.a4 0-0 8.d4 Nc3 9.Nc3 Bb4 10.Bd2 Bc3 11.Rc1 Bd2 12.Qd2 Nc6 13.Bd3 Qa5 (13...f6 14.Be4+=) 14.Rc3 (better is 14.Qa5 Na5 15.Rc7+/-) 14...Nb4 15.Bh7? (better is 15.0-0 Qa4 16.Rfc1+=) 15...Kh7-+ 16.Ng5 Kg8 17.0-0 f6 18.ef6 Rf6 (18...Qa4 19.f7 Rf7 20.Nf7+-; 18...gf6?! 19.Rg3 fg5 20.Rg5 Qg5 21.Qg5 Kf7 22.Qh5 Kg7 23.Qg5 Kf7 24.Qh5 Kg7 25.Qg5 Kf7=) 19.Rc5 Qd8?? (19...Qa4 20.Rc4 a5-/+) 20.Qb4+= b6 21.Rc3 Bb7 22.f4 Rc8 23.Rh3? (23.Qb3!?=) 23...Rf4 24.Rf4 Qg5 25.Qd2?? Rc1!! (25...Rc1 26.Kf2 Qg2 27.Ke3 Qh3 28.Ke2 Ba6 29.Qd3 Qg2 30.Rf2 Qe4 31.Kd2 Qe1) 0–1. Christensen,Bo (2250) – Bonnelykke,O (2025), Odense DEN, Andersen Mindgames, 2012. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.c4 Nb6 7.d4+/- Bb4 (7...Be7 8.Bd2 Nc6 9.Bc3+/-) 8.Bd2 Bd2 (8...Qe7 9.Nc3 0-0 10.a3 Bc3 11.Bc3+/-) 9.Nbd2 (9.Qd2 0-0 10.a4 d5 11.ed6 e5+/- (11...Qd6?? 12.c5 Qe7 13.cb6+-)) 9...Qc7 (9...f5 10.a4 a5 11.Nb1+/-) 10.Bd3 (10.Ne4 0-0 11.Nd6 f6+-) 10...Nc6 (10...f5 11.a4 a5 12.Nb1+-) 11.0-0 (better is 11.Ne4 0-0 12.0-0+-) 11...0-0?? (better is 11...f5+-) 12.Bh7! Kh7 (12...Kh8 13.Ng5 Ne5 14.de5+-) 13.Ng5 Kh6 (13...Kg6 14.Qg4 f5+-) 14.Qg4 Qd8 15.Qh4 Kg6 16.Qh7 Kg5 17.f4 Kg4 18.Qh3 1–0. Uboldi,Alejandro (2265) – Othatceguy,Facundo, CEFA IRT 6th, 2001. (=1.e4 B40: Sicilian: 2...e6, Unusual lines 1...c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.c4 Ne7 7.Nc3 d5 8.ed6 (8.d4 Bb4 9.Bd2 0-0+=) 8...Qd6 (8...Bd6!? 9.d4 Nbc6=) 9.Ne4+= Qc7 10.Nc5 Qc5 11.d4 Qc7 12.Bd3 b6 13.0-0 Bb7 14.Ba3 Nbc6 (14...Nd7 15.Re1+/-) 15.Qe2 (15.d5!? Ne5 16.Ne5 Qe5 17.Qa4 Kd8 18.Rfd1 Nd5 19.cd5 Bd5 20.Be4+-) 15...0-0-0 16.Qe3 Nf5 17.Bf5 ef5 18.d5 Na5 19.Rac1 Nc4? (better 19...Rhe8 20.Qc3 Kb8+-) 20.Qb3?? (better 20.d6 Ne3 21.Rc7 Kb8 22.fe3+-) 20...Bd5+= 21.Nd2 Nd2 22.Rc7 Kc7 23.Qg3 Kb7 24.f3?? (better 24.Rc1=) 24...Nf1-+ 25.Bc1 (25.Qf4 Nh2! 26.Kh2 Ba2 27.Bb2-+) 25…Bc4 (25...Bc4 26.Qg5 Rd1-+) 0-1. therealYardbird (2590) - agnivo (2415), Rated Blitz game, lichess.org, 2020. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6)

6.c4 Ne7 7.Nc3 Ng6 8.Ne4+/- Be7 9.d4 d5 (9...Nc6 10.Bd3+/-) 10.ed6! Bd6 11.h4 Bb4 (11...Ne7 12.Be2+/-) 12.Bd2 Bd2 13.Qd2 (worse is 13.Nfd2 Qd4 14.h5 Ne5-/+; 13.Ned2?! Nc6 14.Nb3 0-0+/-; 13.Kd2 Ne5 14.Kc2 Nf3 15.gf3 Nc6+=) 13...Bd7? (better is 13...h5+/-) 14.h5+- Ne7 15.h6 g6 16.d5 ed5 (16...0-0 17.Nf6 Kh8 18.Qc3+-) 17.Nd6 (worse is 17.cd5 Qb6 18.Bd3 Nd5+-) 17...Kf8 18.Qd4 Rg8 (18...Nec6 19.Qh8 Ke7 20.Qh7 Qa5 21.Ke2 Kd6 22.Qf7 Na6+-) 19.Ng5 Qa5 20.Ke2 Be6 21.Nh7 1–0. mamrot – rancho, internet, 2009. (=1.e4 c5 2.b4 e6 3.Nf3 Nf6 4.e5+= Nd5 5.bc5 Bc5)

6.c4 Ne7 7.d4 Bb4 8.Bd2 Bd2 9.Nbd2 (9.Kd2?! d6 10.ed6 Qd6=) 9...d6 10.ed6 Qd6 11.Bd3 Nbc6 12.c5 Qf4 13.g3 Qc7 14.Nc4 0-0 15.Nd6 e5 16.Ng5 (16.de5!? Qa5 17.Qd2 Qc5 18.Rc1+=) 16...h6 (16...ed4 17.Bh7 Kh8 18.Qh5 g6 19.Bg6 Kg7 20.Qh7 Kf6 21.Nde4 Ke5 22.f4 Kd5 23.Qf7 Rf7 24.Bf7 Be6 25.Be6#; 16...Nd4?? 17.Bh7 Kh8 18.Qh5 Nf3 19.Nf3+-) 17.Ngf7 (worse is 17.Nc8 Rac8 (17...hg5?! 18.Ne7 Ne7 19.0-0=) 18.Ne4 Nd4-/+) 17...Qa5 (17...ed4 18.Qb3 g6 19.Nc8 (19.Nh6?! Kg7 20.Nhf7 Qa5 21.Kd1 Qc5+=) 19...Nc8 20.Nd8 Kh7 21.Qb7 Qb7 22.Nb7=) 18.Kf1 (18.Qd2 Qd2 19.Kd2 A) worse is 19...Rf7 20.Bc4 (worse is 20.Nf7 Kf7 21.de5 Ne5+=) 20...Nd8 21.Nf7 Nf7 22.Rhe1+/-; B) 19...ed4+=) 18...Be6 (better is 18...Nd4 19.Nc8 Rac8+= (19...Nc8?! 20.Ne5 Qc5 21.Bc4 Kh7 22.Qd3 Rf5 23.Re1+=; worse is 19...Kf7 20.Qh5 Ke6 21.Ne7+-)) 19.Qh5?? (better is 19.Ne5 Nd4 20.Bh7 (20.Nb7 Qc7 21.Nd6 Qc5-+) 20...Kh7 21.Qd4=) 19...Rf7 (19...Bf7?! 20.Nf7 Qc3 21.Nh6 gh6 22.Rd1-+) 20.Nf7 Bf7 21.Bh7 Kh7 22.Qf7 ed4 23.Qc4 Rf8 24.Kg2 Qd2 25.Rhf1 Nf5 26.Kh1 Ne5 27.Qd5 Qe2 28.Qb7 Nf3 29.Rab1 d3 30.c6?? Ne3 31.c7? Nf1 32.c8Q Rc8 33.Qc8 Ng3! 34.hg3 Nd4 35.Qd7 Qf3 36.Kh2 Qf2 37.Kh3 d2 38.Rd1 Qe3 39.Qg4 Ne2 40.Qf5= Kh8 ½–½. Neuberg,Simon – May,Frank, RL–ch Trier, 1992. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.c4 Nf4 7.Nc3 Nc6 8.Ne4+=.

6.Bc4 Nb6 7.Bb3 d5 8.d4 Be7 9.0-0 0-0 10.c3 Nc6 11.Qd3 g6 12.Bh6 Re8 13.Nbd2 Bd7 14.Qe3 Rc8 15.Rfc1 Na5 16.Qf4 f6 17.ef6 Bf6 18.Ne5 Be5 19.Qe5 Qe7 20.Nf3 Nac4 21.Qg3 Nd6 22.Bc2 Nf5 23.Bf5 ef5 24.Re1 Qf6 25.Ne5 Re6 26.h4 Rce8 27.Kh2 Bc6 28.f4 Nc4 29.Bg5 Qg7 30.Nc4 dc4 31.Re6 Re6 32.d5 Bd5-/+ 33.Rd1 Bc6 34.Rd8 Be8 35.Qf3 Re4?? 36.Qd1?? h6-+ 37.Qd5 Kh7 38.Re8 Re8 39.Bd8 Re4 40.Qd6 Qf7 41.Bf6 Re6 (41...Re6 42.Qd5 Qf6-+) 0–1. Gross,Ka (2115) – Schaefers,A (2020), Sparkassen Open, Nettetal GER, 2010. (=1.e4 B40: Sicilian: 2...e6, Unusual lines 'C00: French: Unusual White 2nd moves ' 1...e6 2.Nf3 c5 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Bb4 7.Bd2 Qa5 8.a3 Nc6 (8...Bd2 9.Qd2 (9.Nfd2?! Nc6=) 9...Nc6 10.Qa5 Na5 11.c4+/-) 9.Bc4 (better is 9.c3!? Nc3 10.ab4 Qa1 11.Bc3+-) 9...Bd2 10.Qd2 (worse is 10.Nfd2 Nd4 11.0-0 0-0+=) 10...Qd2 11.Kd2 (11.Nbd2 Nc3+/-) 11...Nb6+= 12.Bd3 Ke7 13.Nc3 d5 14.Nb5 h6 (14...Na5 15.Nd6+/-) 15.Nd6 Rb8 16.c3 Bd7 17.Ne1 (17.Rab1!?+=) 17...Nc8= 18.Nc8 Rhc8 19.f4 (19.Rb1 Na5 20.Rb4 Rc7=) 19...Rc7 20.Rb1 Rbc8 21.Bb5 (21.Nc2 Na5-/+) 21...Na5 22.Bd7 Kd7 23.Nd3 b6 24.a4 Rc3 (24...Rc4!? 25.f5 Ra4 26.fe6 fe6 27.Nb4-+) 25.Nc5-/+ R3c5 (25...bc5 26.Kc3 cd4 27.Kd4 Rc4 28.Kd3 Rf4 29.Rhf1 Rf1 30.Rf1+=) 26.dc5 Rc5 27.Rhc1 Rc1 28.Kc1 Kc6 29.Kd2 Kc5 30.Kd3 a6 31.g4 (31.Ke2!?-/+) 31...Nc4-+ 32.h3 b5 33.ab5 ab5 34.h4 (better is 34.Rc1-+) 34...b4?? (34...g5 35.Rf1-+) 35.Ra1? (better is 35.g5+=) 35...b3 (better is 35...g5!? 36.hg5 hg5 37.fg5 Ne5 38.Kc2 Ng4-+) 36.Ra7-/+ ½–½. Olle Castillo,Salomon – Costa Jutglar,Marc, Catalunya op–B, 2000. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Bb4 7.Bd2 Qa5 8.Bb4 Qb4+= 9.Nbd2 Nc6 10.c4 Nde7 11.Qb3 Qb3 12.ab3 Nf5 13.d5 Ncd4 14.Nd4 Nd4 15.Bd3 ed5 16.cd5 b5 17.0-0 (17.Ne4!?+/-) 17…Ke7 0–1. Chkhaidze,Mariana – Rohackova,Veronika, EuYouth U12 Girls, Tallinn EST, 1997. (=1.e4 e6 2.Nf3 c5 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Bb4 7.Bd2 Qa5 8.c3 Nc3= 9.Qc2 Nd5?? (better 9...Nb1 10.Rb1 Bd2 11.Qd2 Qd2 12.Kd2 b6=) 10.Qc8+- Ke7 (10...Qd8 11.Qb7 Nc6+-) 11.Qh8 Bd2 (11...Qc7 12.Kd1 Bd2 13.Nbd2+-) 12.Nbd2 Qc3 13.Rb1 Nb6 (13...Qc2 14.Ng5 Nb6 15.Nh7+-) 14.Qh7 Nc6 15.Qd3 (better 15.Qg7!? Rf8+-) 15...Qa5 16.Be2 Nd5 (16...Rh8 17.Qc2+-) 17.0-0 (17.Qh7 Qa2 18.Bc4 Qa5 19.Bd5 Qd5 20.Qh4 f6 21.ef6 gf6 22.Qh7 Kd6 23.Rb7 Nb8 24.Ne4 Kc6+-) 17...Ncb4 (17...Nf4 18.Qe3 Ne2 19.Qe2 Qa2 20.Qe4+-) 18.Qb5 (better 18.Qh7 Nc3 19.Qh4 f6 20.ef6 gf6 21.Qh7 Kd8 22.Qg8 Ke7 23.Qg7 Kd8 24.Qf8 Kc7 25.Qa8 Ne2 26.Kh1 b5+-) 18...Qa2 (18...Qb5 19.Bb5 Na2 20.Bc4+-) 19.Rb4 Nc3 20.Qc5 (20.Qc5 Ke8 21.Qc3+-) 1–0. Nunes,Moezio Correia (1795) – Nogueira,Jorge Da Silva (1810), CCXC – Prof Nilo Sales – Etapa, 2016. (=1.e4 e6 2.Nf3 c5 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Bb4 7.Bd2 Qa5 8.Be2 Bd2 9.Qd2 Qd2 10.Nbd2 Nc6 11.0-0 0-0 12.a3 b6 13.Ne4 f5 14.Nd6 Nc7 15.c4 Ba6 16.Rad1 Ne8 17.Ne8 Rae8 18.Rfe1 Bb7 19.Rd2 Rf7 20.Ng5 Rfe7 21.f4 Rd8 22.d5 ed5 23.cd5 Na5 24.d6 Ree8 25.Bd1 h6 26.Nf3 Rc8 27.Nh4 Be4 28.Ng6 Rc3 29.Bh5 Re6 30.Ne7 Kf8 31.Ng6 Kg8 32.a4 Nc4 33.Rdd1 Rc2 34.Re2 Re2 35.Be2 Ne3 36.Ne7 Kh7 37.Rc1 Nd5? 38.Nd5+- Bd5 39.Rc7 Bc6 40.Ra7 Rg6?! 41.g3 Re6 42.Bc4 Re8 43.Kf2 Ra8 44.Ra8 Ba8 45.Bb5 Bb7 46.Bd7 (46.Bd7 Kg6 47.Be8 Kh7 48.d7+-) 1–0. Dziodzio,Angelika (1695) – Chenska,Karolina, Mistrzostwa Polski Juniorek Poland, 2008. (=1.e4 c5 2.b4 e6 3.Nf3 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Bb4 7.Bd2 Bd2 8.Nbd2 d6 9.Bd3 Nc6 10.Bb5 Bd7 11.Bc6 (11.ed6? Nc3 12.Bc6 Nd1 13.Bd7 Qd7 14.Rd1 Rc8-+) 11...Bc6 12.0-0 (better is 12.Nc4!? de5 13.Nce5=) 12...Nc3-/+ 13.Qe1 Bb5 14.Qe3 Bf1 15.Rf1 Nd5 (15...Na2 16.Qa3 0-0 17.Qa2 de5 18.de5+/-) 16.Qb3 Nb6 17.Ne4 0-0 (17...de5 18.Qb4 a5 19.Nd6 Kf8=) 18.Nd6= Qc7 19.Qd3 h6 20.h3 Nc8 21.Ne4 Ne7 22.Nh2 Rac8 23.Ng4? (23.Rc1 Qc4 24.Qc4 Rc4+=) 23...Ng6 (better is 23...Qc2 24.Rd1 Nf5-+ (24...Qa2?? 25.Nef6 gf6 26.Nf6 Kg7 27.Qh7)) 24.c3+= Rfd8 25.Rc1? (better is 25.Qe3 Qc6 26.Nd6=) 25...Ne5!-+ 26.Qg3? Ng4 27.Qg4 Kf8 28.Nc5 b6 29.Nd3 Qe7 30.Qg3 a6 31.Ne5 Qg5 32.f4?? Qe7 33.Qf2 Qd6 34.Qf1 b5 35.f5 f6 36.fe6 Qe6 37.Re1 Qd6 38.Ng6 Kf7 39.Qf5 Re8 40.Ne5 Kg8 41.Qg6 Qc7 42.Nf3 Re1 43.Ne1 Qc3 44.Nf3 Qc2 45.Qg4 b4 46.Nh4 Kh7 47.Nf5 Qc1 48.Kh2 Qc7 49.Kh1 Qd7 50.Qf4 a5 51.Qe4 Kh8 52.Qf4 Qc7 53.Qg4 Re8 54.Qd1 Qf4 55.Qb1 Qe4 56.Qf1 Qe1 57.Qe1 Re1 58.Kh2 a4 59.Nd6 Re2 60.Nc4 Ra2 61.d5 Ra1 62.d6 a3 63.Ne3 0–1. Fiklik,Vladimir – Vedral,Oldrich (1705), CZE–ch U14 Most, 1999. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

6.d4 Be7 7.Bd3 Nc6 8.h4 Qc7 9.c3 d6 10.ed6 Bd6 11.0-0 h6 12.Re1 0-0 13.Bc2 Nf6 14.Ba3 Ba3 15.Na3 Qa5 16.Qc1 Qc3?? (better is 16...b5=) 17.Bh7!!+- (17.Bh7 Kh7 18.Qc3+-) 1–0. Venard,Paul Andre (1630) – Froment,Theophile (1795), FRA–ch U12 Aix les Bains, 2009. (=1.e4 c5 2.Nf3 e6 3.b4 Nf6 4.e5 Nd5 5.bc5 Bc5)

2...Nf6

3.bc5 e5 4.Nc3 Bc5 5.Nf3 0-0 6.Bc4= d5 7.ed5 Bf2?? 8.Kf2+- Qb6 9.Ke1 Ng4 10.Rf1 Nd7 11.Qe2 Nc5 12.Ne5 Nh2 13.Rh1 Bf5 14.Rh2 Qf6 15.d4 Rac8 16.Ba3 b6 17.g4 Bc2 18.Qc2 Qe5 19.de5 (19.de5 h6 20.Qf5+-) 1–0. Unwine,Eugene – Yeargin,Tommy, IECC, 2005.

3.e5 Qc7

4.d4 Nd5 5.bc5+- e6 (5...d6 6.Bc4 Be6 7.Bb5 Nd7 8.c4 dc5 9.cd5 Bd5 10.Ne2+-) 6.c4 Nb4 7.Nc3 N4c6 (7...b6 8.a3 N4a6 9.Nb5+-) 8.Nb5 Qd8 9.Nf3 a6 (9...Na6 10.Be2+-) 10.Nd6 Bd6 11.ed6 0-0 12.Bd3 h6 13.0-0 b6 14.cb6 Qb6 15.Rb1 Qd8 16.d5 ed5 17.cd5 Na7 18.Nd4 Qf6 (18...Kh8+-) 19.Bb2 Qg5 (19...Qf4 20.Nf5 Nb5+-) 20.Nf5 f6 (20...g6 21.Ne7 Kh7+-) 21.Ne7 Kh8 22.f4 (22.f4 Qh4 23.Ng6 Kg8 24.Nh4+-) 1–0. juliangon (2650) – Ollemsolrac (2125), ChessWorld.net, 2015. (=1.e4 c5 2.b4 Nf6)

4.d4 Ng8 5.bc5 e6 6.Na3 Nc6 7.Nb5 Qd8 8.Nd6 Bd6 9.cd6 Qa5 10.Bd2 Qa4 11.c3 Qd1 12.Rd1 f6 13.f4 b6 14.Nf3 Bb7 15.Bd3 0-0-0 16.a4 Nh6 17.0-0 Nf7 18.h4 Rdg8 19.Rf2 h6 20.Bg6 Nfd8 21.h5 f5 22.Nh2 Na5 23.g4 fg4 24.Ng4 Bc6 25.f5 ef5 26.Bf5 Ba4 27.Ra1 Bb3 28.Ne3 Bf7+/- 29.d5 g6 30.Bh3 gh5 31.Kh2 Re8 32.e6 de6 33.Rf7?? Nf7-/+ 34.c4 Ng5 35.de6 Nh3?? 36.d7= Kb7 37.Ba5?? Re6-+ 38.Rd1 ba5 39.Nf5 Rd8 40.Kh3 Kc7 41.Ng7 Re3 42.Kh4 Rd7 43.Ra1 0–1. Aguilera,Jorge – Seidler,Horacio, Zarate op, 1972.

3.e5 Nd5

4.c4 Nb4 5.Nf3 e6 6.Bb2 Be7 7.g4 (7.a3!? N4c6 8.Qc2=+) 7...N4c6 8.Nc3 (8.Qc2 f6-/+) 8...b6 (8...d5 9.ed6 Bd6 10.Qb3-/+) 9.Ne4 Bb7 10.Bg2 Qc7 (10...0-0 11.Qe2-/+) 11.0-0 Na6 (11...0-0 12.Qc2-/+) 12.a3 (12.Qb1 h5 13.g5 0-0-/+) 12...Nd4 (12...0-0!?-/+) 13.Nd4= cd4 14.Bd4 Nc5 (better 14...0-0=) 15.Qe2 (15.Bc5 bc5 16.Rb1 Bc6=) 15...Rc8 (better 15...Nb3!? 16.Bc3 Na1 17.Nd6 Bd6 18.ed6 Qc8 (worse 18...Qd6 19.Bb7 Rd8 20.Bg7+/-) 19.Bb7 Qb7 20.Bg7 Rg8 21.Ba1 h5-+) 16.Bc5 (better 16.Nd6 Bd6 17.ed6+=) 16...bc5?? (16...Bc5 17.d4 Be4 18.Qe4=) 17.Rab1?? (better 17.Nd6 Bd6 18.ed6 Qd6 19.Bb7+-) 17...Bc6= 18.f4 0-0 19.g5 (19.Nc3 Rb8=) 19...Rfd8=+ 20.Rb3 d6 (20...d5 21.ed6 Bd6 22.Qe3=+) 21.ed6 (21.Qh5 d5 22.Nf6 gf6 23.gf6 Kf8+/-) 21...Bd6=+ 22.Rh3 (22.Qe3 Be7=+) 22...Be4 (22...Bf4 23.Qh5 Kf8 24.Qg4 Bd2 25.Rh7 Be4 26.Be4+=) 23.Be4 g6 24.Qg4 Bf8 25.Qh4 Bg7 (25...h5!? 26.gh6 Kh7= (26...Rd2 27.Qf6 Rg2 28.Kg2+-)) 26.Qh7+= Kf8 27.Bg6 (27.Rb3!? Rb8 28.Rb8 Qb8 29.d3=) 27...fg6=+ 28.Qg6 Qf7 (28...Rd2 29.Qe6 Bd4 30.Kh1 Qb7 31.Qd5 Qd5 32.cd5=+) 29.Qe4 (29.Qf7!? Kf7 30.d3=) 29...Qf5 30.Qb7?? (better 30.Qf5 ef5 31.d3-/+) 30...Qh3-+ 31.f5 (31.Qf3 Qf3 32.Rf3 Rd2 33.Rb3-+) 31...Bd4 32.Rf2 Bf2 33.Kf2 Rd2 34.Ke1 Qe3 35.Kf1 Qe2 (35...Qf2) 36.Kg1 Rd1 (36...Qe1) 0-1. Beerdsen,Thomas (2475) - Sarana,A (2650), Katara Bullet Final, 2020. (=1.e4 c5 2.b4)

4.bc5 Qa5 5.c4 Nb6 6.cb6?? (better is 6.Nc3 Qc5 7.d4+/-) 6...Qe5-/+ 7.Ne2 Qa1 8.Nbc3 e5 (8...ab6? 9.Nd4 Ra2 10.Nb3 Rd2 11.Qd2+- (11.Na1?! Rd1 12.Kd1 d6+/-)) 9.Qa4 (better is 9.d4!?-/+) 9...Na6-+ 10.g4 Nb4 (10...ab6 11.Bg2 Nc7 12.Qc2-/+) 11.Qa7 Nd3 12.Kd1 Ra7 13.ba7 Bc5 (worse is 13...Nc1 14.Nc1 Ba3 15.N3e2 Bc1 16.Nc1+/-) 14.a8Q 0-0 15.Kc2 Nf2 (15...Nc1? 16.Bg2 (16.Nc1?! d5 17.Qa4 Bg4+-) 16...d6 A) 17.Rc1?! Bf5 18.gf5 Qc1 (18...Ra8?? 19.Ra1 Ra7 20.Nb5+-) 19.Nc1 Ra8+-; B) 17.Nc1?! Bf5 18.Nd3 Bd3 (18...Ra8 19.Ra1 Bg4 20.Bb7+-) 19.Kd3 Qc3 (19...Ra8 20.Ra1 Ra3 21.Bb7+-) 20.Kc3 Ra8=; C) 17.Qa4 Qa2 18.Na2 (18.Kc1?! Qa4 19.Na4 Bf2+/-; 18.Qa2?! Na2 19.Na2 Bg4+=) 18...Ne2 19.Nc3 Nd4 20.Kd1 Bg4 21.Ke1+-) 16.Rg1 d5?? (better is 16...Ng4 17.Rg3 d5+= (worse is 17...Nh2 18.Bh3+/-)) 17.Bb2+/- Ng4 18.Qc8 (18.Ba1?! Bf5 19.Kc1 Ra8 20.Rg4 Bg4 21.Nd5 Bf3=) 18...Rc8 19.Ba1 Bg1 20.Ng1 Nh2 21.Be2 d4+/- 22.Nd5 Re8 23.a4 Re6 24.Nh3 h6 25.c5 g5 26.Nf2 f5 27.Bc4 Kf8+/- 28.Bb2 g4 29.Nb6 Ke7 30.Nc8 Kd7 31.Be6 Ke6 32.Nd6 g3 33.Nh3 f4 34.Bd4! f3 35.Be3 Kd5 36.Nb7 Ng4 37.Bg1 f2 38.Nf2! gf2 39.Bf2! Nf2 40.a5 Kc6 41.a6 Kc7 42.Nd8!! Kb8 43.c6 (43.c6 Ne4 44.c7 Kc7 45.a7+-) 1–0. Weinreich,Francis – Csizmadia,Ferenc, HUN–FRA corr, 1985. (=1.e4 c5 2.b4 Nf6 3.e5 Nd5)

4.bc5 Qa5 5.c4!? Nf4 6.g3+=.

4.bc5 Qa5 5.Nf3 e6 6.c4 Nc7 (6...Nf4 7.Qb3 Nc6 8.g3+=) 7.Bd3 (7.Ng5!? Bc5 8.Qh5+/-) 7...Bc5 (7...Qc5 8.Ba3 Qb6 9.Qc2+=) 8.0-0 Nc6 9.Bc2 (9.Nc3 Bf8=) 9...Nd4 (9...Bd4 10.Nd4 Nd4 11.Re1+=) 10.Be4 (10.Bb2!? Nf3 11.Qf3=) 10...Nf3 11.Qf3 (11.gf3 Bd4 12.Nc3 Be5-/+ (worse is 12...Qe5 13.Rb1-/+); 11.Bf3 Bd4 12.Nc3 Be5+= (worse is 12...Bc3 13.dc3 Qe5 14.Rb1+/-)) 11...Bd4 12.Nc3 Rb8 13.Rb1 b6 (better is 13...Be5!? 14.Re1 b5+=) 14.Ne2+= Be5 (14...Bc5 15.Ra1+=) 15.d4= Bf6? (15...f5 16.de5 fe4+/-) 16.Qg3 (16.Bf4 Ba6 17.Bc7 Rc8+-) 16...e5 (16...Na6 17.Bf4 A) 17...Qa2?? A1) 18.Bb8?! Qe2 19.Rfe1 Qd2+/- (19...Qc4?? 20.Rec1 Qd4 21.Rc8 Bd8 22.Bc2 Nb8 23.Rd8 Kd8 24.Qb8 Ke7 25.Qh8+-); A2) 18.Bd3 Rb7 19.Ra1 Qa1 20.Ra1+-; B) 17...Bb7 18.Bb7 Rb7+-) 17.Bg5?? (17.Ba3 Bb7 18.Bb4 Qa2 19.de5 Qc4 (19...Be4?? 20.ef6 Kd8 21.fg7+-; 19...Qe2?? 20.ef6 Qe4 21.fg7+-) 20.Bb7 Be7 21.Qg7 Rf8 22.Be7 Ke7+-) 17...Ba6?? (better is 17...Bg5 18.Qg5 0-0=) 18.Bf6+- gf6 19.Qg7 Ke7 20.de5?? (better is 20.Ng3 Rbf8 21.Nf5 Kd8 22.Qf6 Kc8 23.Ne7 Kb8 24.Qd6+-) 20...Qe5= (20...fe5?? 21.Qg5 Kf8 22.Qf6+-) 21.Ng3 Rbg8 22.Qh6 Bc4 23.Rfe1 Be6 24.Bf5 Qa5+= 25.Rbd1 Rg3 26.Be6 Rg2-/+ 27.Kg2 de6 28.Kh1 Qg5 29.Qh3= Nd5?? 30.Qa3+- Ke8 31.Qd6 Rg8 32.Qd5 Qd5 33.Rd5 Rg5 34.Rg5 fg5 35.Rd1 Ke7 36.Kg2 f5 37.Kg3 e5 38.f3 h5 39.h3 h4 40.Kf2 a5 41.Rb1 Kd6 42.Rb6 Kc5 43.Rb8 a4 44.a3 Kc4 45.Ke2 Kc3 46.Rb4 1–0. Feller,Joseph (2205) – Johne,Siegfried (1830), Alpenpokal op, 2002. (=1.e4 c5 2.b4 Nf6)

4.bc5 Qa5 5.Nf3 e6 6.Bc4 Qc5 7.Bb3 b5 8.0-0 Bb7 9.d4 Qc7 10.a4 b4 11.Re1 Be7 (11...d6 12.Bd2 de5 13.Ne5=) 12.a5 Nc6? (better is 12...d6!?=) 13.a6+/- Bc8 14.Bd5 ed5 15.c4! Nb8 (15...dc4 16.d5 Combination) 16.cd5 Ba6?? (better is 16...Qc4 17.d6 Bd8+/-) 17.d6+- Qc6 18.d5 Qb7 19.de7 Ke7 (19...Bc4 20.d6+-) 20.Bg5 Kf8 21.e6 Bc4 (21...f6 22.e7 Ke8 23.Nh4+-) 22.ef7 Na6 (22...Qd5 23.Nbd2 Bb3+-) 23.Re8! Re8 24.fe8Q (24.fe8R Kf7 25.Re7 Kg6 26.Nh4 Kg5 27.Rg7 Kh4 28.Qg4) 24...Ke8 25.Qe1 Kf7 26.Qe7 Kg6 27.Ne5 (27.Ne5 Kf5 28.g4 Ke4 29.Ng6 Kd4 30.Qe3 Kd5 31.Ne7 Kd6 32.Bf4) 1–0. Schneider,Georg (2140) – Johne,Siegfried (1890), Bad Woerishofen Seniors op, 2000. (=1.e4 c5 2.b4 Nf6 3.e5 Nd5)

4.bc5 Nc6 5.c4 Ndb4 6.Nf3 Qa5 7.Nc3 (7.Bb2 Qc5 8.d4 Qb6+/-) 7...Qc5 (7...d6 8.Be2 de5 9.0-0+=) 8.d4 (8.a3 Qa5 9.d4 Na6+/-) 8...Qa5? (8...Nd4 9.Nd4 Qd4 10.Qd4 Nc2 11.Kd1 Nd4=) 9.d5?? (better is 9.Bd2 Na6 10.Be2+/-) 9...Ne5+= 10.Ne5 Nd5 11.Bd2 Nc3 12.Nf7 Nd1 (worse is 12...Kf7 13.Qf3 Kg8 14.Bc3=) 13.Ba5 Nf2 14.Kf2 Kf7 15.Be2 e5 16.Rad1 Bc5 17.Ke1 b6 18.Bc3 d6 19.Rf1 Ke7 20.Bf3 Rb8 21.Rd2 Rf8 22.a4 a5 23.h4 Bd7 24.Ra2 Be6 (24...Be6 25.Be2 g6-+) 0–1. Rolle,Hannes – Schumann,Thorsten, GER theme, 1994. (=1.e4 c5 2.b4 Nf6 3.e5 Nd5)

4.bc5 Nc6 5.d4 d6 6.cd6 ed6 7.Nf3 Bg4 8.Be2 de5 9.de5 Bb4 10.Bd2 Nf4 11.c3 (11.Bb4!? Nb4 12.Kf1+=) 11...Ng2+= 12.Kf1 Bh3 13.Kg1 Bc5?? (better is 13...Be7-/+) 14.Qc2?? (better is 14.Ng5 Qd7 15.Nh3 Qh3 16.Qf1+-) 14...Nh4 (better is 14...Qb6 15.Nd4 Nd4 16.cd4 Bd4 17.Qa4 Bd7-+) 15.Qe4-/+ Nf3 16.Bf3? (better is 16.Qf3!? Be6 17.Qg3-/+) 16...Qb6-+ 17.Qe1?? (17.Qh4 Bf5 18.Kg2-+) 17...Nd4! 18.Be4 (18.cd4 Qg6 Mate attack) 18…Nf3!! 0–1. Schweitzer – Steinmetz, Bremen, 1939. (=1.e4 c5 2.b4 Nf6 3.e5 Nd5)

4.bc5 Qc7 5.Nf3 (5.d4!?+-) 5...Qc5+= 6.d4 Qb6 (6...Qb4 7.Qd2+=) 7.Be2 e6 (7...Qb4 8.Qd2+-) 8.0-0 Nc6 (8...d6!?+-) 9.c4+- Nde7 10.Nc3 (10.d5 Nb4+-) 10...Nf5+- 11.c5 Qb4 (11...Qd8 12.Ne4+-) 12.Nb5 Qa5 13.g4 Nh6 (13...a6 14.Bd2 Qd8 15.gf5 ab5 16.Bb5+-) 14.h3 (14.Bd2 Qd8 15.Bg5 Be7 16.Nd6 Kf8 17.Bh6 gh6+-) 14...Ng8 (14...a6 15.Bd2 Qd8 16.Nc3+-) 15.Bd2 (15.Nd2!? f6+-) 15...Qd8+- 16.Rc1 (16.Be3 f6+-) 16...a6 17.Nd6 Bd6 18.cd6 h5 (18...b5 19.Qb3+-) 19.g5 b5 20.Bd3 (20.d5 ed5 21.g6 Nh6+-) 20...Bb7+- 21.Be4 Rc8 22.Qe1 Qb6 Black prepares b4 (22...b4 23.Qe3 (23.Bb4 Nd4 24.Rc8 Nf3 25.Bf3 Qc8+-) 23...Qb6 24.Qb3+-) 23.Qe3 (23.d5 ed5 24.Bd5 b4+-) 23...Ba8 (23...Rb8 24.Rfe1+-) 24.Rc5 a5 Black intends b4 (24...Bb7 25.d5 ed5 26.Bd5+-) 25.Rfc1 b4? (better 25...Rb8+-) 26.d5 ed5 27.Bd5 (better 27.Rc6 Qc6 28.Rc6 Bc6 29.Bd3+-) 27...Kf8 (27...Rb8 28.e6! fe6 29.Bc6 Bc6 30.Rc6 Qd8+-) 28.Qf4 f6 29.Nh4 (29.Nh4 Nge7 30.de7 Ke7 31.gf6 Kd8 32.fg7+-) 1–0. Salim Mohammed Salim Al Amri – Khalifah,Khaled, Asian Nations Cup Open, 2016. (=1.e4 c5 2.b4 Nf6 3.e5 Nd5)

4.bc5 d6 5.Nf3 dc5 6.Bb5 Bd7 7.Bc4 e6 8.0-0 Be7 9.Bb2 Qb6 10.Bb3? c4!-+ 11.Ba3 cb3 12.ab3 Bc6 13.d4 0-0 14.Be7 Ne7 15.Nbd2 Qb4 16.Re1 h6 17.Re3 Nd5 18.Rd3 Nc3 19.Qe1 b5 20.Nb1 Nd5 21.Qc1 Rc8 22.c3 Qe7 23.Ne1 Qg5 24.Qd1 Nf4 25.Rg3 Qf5 26.Na3 Nd7 27.Nd3 Nd3 28.Rd3 Nb6 29.Rg3 Nd5 30.Qd2 Nf4 31.h3 a5 32.Re1 Rab8 33.c4 Bg2 34.c5?? Bd5 0–1. Ruhmke,Stephan (2235) – Warzecha,Helmut (2265), RSS7E pro–87, 2008.

4.bc5 e6 5.c4 Nc7 6.d4 Nc6 (better is 6...b6!?+=) 7.Nf3+/- Be7 (7...Na5!?+/-) 8.d5 ed5 9.cd5 Nb4?? (better is 9...Ne5 10.Ne5 Bc5+-) 10.d6 Ncd5 (10...b6 11.cb6 (worse is 11.dc7 Qc7 12.a3 Nc6+-) 11...ab6 12.Ba3+- (worse is 12.de7 Qe7 13.Bb2 0-0+-; 12.dc7?! Qc7 13.Kd2 Bb7=)) 11.de7 Qa5 (11...Ne7 12.Nc3 0-0 13.Qa4+-) 12.Bd2 Qc5 13.Na3 Qe7 (13...Ne7 14.Rc1 Qd5 15.Qe2+-) 14.Nc4 (better is 14.Qb3!? Nc6 15.Nb5 Ne5+-) 14...0-0 15.a3 (15.Rb1 Nc6 16.Qc2 Rb8+-) 15...Nc6 16.Be2 (16.Qb3 d6 17.Qd3 Ne5 18.Nce5 Qe6+-) 16...b5 17.Ne3 Ne3 18.Be3 (18.fe3?! Bb7 19.Bc3 a6+-) 18...Ne5 19.Qd5 (19.Ne5 Qe5 20.0-0 Rd8+-) 19...Nf3 20.Bf3 (20.gf3?! Rb8+-) 20...Rb8 21.0-0 Re8 22.Ba7 Bb7 23.Qd3 Bf3 24.Bb8 Be2 25.Qd6 Qg5 26.Rfe1 Re6 27.Qf4 Qd5 28.Rac1 h5 29.Rc8 Kh7 30.Qf7 Qg5 31.Bf4 Bf3 32.Qg8 (32.Qg8 Kg6 33.Re6 Kf5 34.Bg5 de6 35.gf3 Kg6 36.h4 Kf5 37.Qg7 b4 38.Qf6) 1–0. Vogiatzis,Dimitrios (1995) – Hasenoeder,Matthias (1660), Nuremberg Zabo op 2nd, 2000. (=1.e4 c5 2.b4 Nf6)

2...g6

3.Bb2 f6 4.f4 (4.bc5 e5+/-) 4...e6 (4...cb4!? 5.a3 ba3 6.Na3 Nc6=) 5.bc5+= Bc5 6.d4 Bb4 7.c3 Bd6 8.Qc1 b6 9.Bd3 Ba6 10.c4 Bb4 11.Nd2 Nc6 12.Ngf3 Rc8 13.0-0 Be7 14.d5 Nb4 15.Bb1 ed5 16.ed5 (16.a3 Nc6 17.ed5 Na5+=) 16...Nd5 17.f5 gf5 18.Re1 (worse is 18.Bf5 Ne3 19.Nd4 Nf1 (19...Nc4?! 20.Nc4 Bc4 21.Re1+=) 20.Qf1 Bb4-/+) 18...Kf7 19.Bf5 Bc5 20.Nd4 Nh6 21.Qd1 Nf4 22.Be4 Qg8 (22...d5 23.Bd5 Kg6 24.Qc2 f5 25.Qb3+/-) 23.Bd5 Nd5+= 24.Qh5 Kg7 25.Kh1? Nf4?? 26.Nf5= Nf5 27.Qg5 Ng6 28.Qf6 Kh6 29.Ne4 Qd8 30.Qf5 Rf8 31.Nf6 Rf6 32.Bf6 (32.Bf6 Qf6 33.Qf6+-) 1–0. Pluschkat,Gustavo R (1940) – Da Silva,Jose AM (2075), Zonal, 2011. (=1.e4 c5 2.b4 g6)

3.Bb2 Nf6 4.e5 Nd5 5.e6 f6 6.ed7 (6.bc5 de6 7.d4 Bg7=) 6...Nd7= 7.bc5 Nc5 8.c4? (better 8.d4 Na4 9.Bc1=) 8...Nb4-+ 9.d4 (9.Bc3 Nbd3 10.Bd3 Nd3 (worse 10...Qd3 11.Ne2-/+) 11.Kf1 e5-+) 9...Bf5 10.Na3? (10.dc5 Nc2 11.Ke2 Na1 12.Qa4 Bd7 13.Qd1 Bg4 14.f3 Qd1 15.Kd1 0-0-0 16.Ke2-+) 10...Ncd3 11.Bd3 Nd3 (11...Bd3 12.Qa4 Nc6 13.Rd1+-) 12.Kf1 Nb2 13.Qb3 (13.Qd2 Bd3 14.Ne2 Qd4-+) 13...Qd4 (13...Bd3 14.Ne2 Qd4 15.Nb5-+) 14.Ne2 Qe5 (better 14...Bd3 15.Qb5 Kf7-+) 15.f4 Qc7 16.Qb2 a6 17.Rd1 Bg7 (17...e5 18.fe5 fe5 19.Nb1-+) 18.Kf2 0-0 19.Rhe1 Rfd8 20.Kf1 Bg4 21.h3 Be2 22.Qe2 Qf4 23.Qf3 (23.Kg1 e5-+) 23...Qf3 24.gf3 f5 25.Rd8 Rd8 26.Re7 Bf8 27.Re3 Rd4 28.Nb1 Rc4 29.Rb3 (29.Nc3 b5-+) 29...b5 30.Nc3 (30.Rc3 Bg7 31.Rc4 bc4-+) 30...Bg7 31.Nd5 Kf7 (better 31...Rc1!? 32.Ke2 Rc2 33.Ke3 Ra2 34.Nb4-+) 32.Re3 Rc1 33.Kg2 (33.Re1 Re1 34.Ke1 Be5-+) 33...Rc2 34.Kg3 (34.Kf1 Ra2 35.Re7 Kf8-+) 34...Bf8 35.f4 Bc5 (35...Ra2 36.Rb3-+) 36.Rd3 (36.Rc3 Rc3 37.Nc3 b4-+) 36...Rc4 (better 36...Ra2 37.Nc7-+) 37.Nc7 Bf2! 38.Kf2 Rc7 39.Rd6 (39.Ra3 Rc6-+) 39...Ra7 (better 39...Rc2 40.Kf3 Ra2 41.Rd7 Kg8-+) 40.Rb6 Kg7 41.Ke3 (41.Kg3 Kf8-+) 41...Kh6 42.Kd4 (42.Kf3 Kh5-+) 42...Kh5 43.Ke5 (43.Ke3 Kh4-+) 43...Kh4 44.Kf6 Kh3 45.Kg5 Rd7 (better 45...Kg3!? 46.Rb8-+) 46.Ra6 Rd3 47.Ra7 (47.Ra5 Rd2-+) 47...Rg3 48.Kf6 (48.Kh6 Kg4 49.Kh7 Kf4-+) 48...h5 49.Rh7 (49.Ra5 Kg4 50.Rb5 h4 (50...Kf4?! 51.a4-+) 51.Kg6 h3-+) 49...h4 50.Rb7 Kg4 51.Rb5 h3 (51...h3 52.Rb1 h2-+; 51...Kf4?! 52.Rb4 Ke3 53.Rh4-+) 0-1. Saqo20 (2620) - Arifars17 (2670), Rated Bullet game, lichess.org, 2021. (=1.e4 c5 2.b4)

3.Bb2 Bg7 4.Bg7 c4 5.Bh8 c3 6.Nc3 Nc6 7.Bc4 e6 8.h4 Qc7 9.Bb3 a6 10.Nf3 Qb8 11.h5 Qe5 12.hg6 1-0. Blitzstream_twitch (2485) - whysoserious (2465), Rated Bullet game, lichess.org, 2014. (=1.e4 c5 2.b4)

3.bc5 Bg7

4.c3 Na6 5.d4 b6 6.cb6 Qb6 7.Nf3 Bb7 8.Bd3 Nf6 9.0-0 (9.Nbd2!?+-) 9...Ne4 10.Re1 d5 (better 10...f5+=) 11.Nbd2 (better 11.Qa4 Kf8 12.Ng5+/-) 11...Nc3=+ 12.Qc2 Rc8 (12...Bd4 13.Nd4 Qd4 14.Nf3+/-) 13.Nb3 (13.Ba3 e6 14.Qb3 Rc7=+) 13...Nb4 14.Qd2 Nd3 15.Qd3 Ba6 16.Qe3 e6 17.Nc5 Ne4 18.Ne4 de4 19.Qe4 0-0 20.Ne5 Bb7 21.Qe3 Rfd8 22.Ba3? (better 22.Qf4 f6 23.Nf3-/+) 22...Bd5?? (better 22...Qd4 23.Qe2 Qa4-+) 23.Bc5 Qb7 24.a4 (24.Rab1!? Qc7 25.Rec1=) 24...Bg2-/+ 25.Qg3 (25.Rab1!? Qd5 26.Ba7=+) 25...Bd5-+ 26.a5 a6 27.Rab1 Qa8 28.Bb6 Re8 29.Bc5 Rb8 30.Rb6 Rbc8 (30...Rb6 31.ab6 Qb8 32.Nd7-/+) 31.Qf4 (31.Rbb1 Rcd8 32.Rb6-/+) 31...f6-/+ 32.Ng4 Rc6 (32...Bh1 33.Qg3 (33.Nf6? Bf6 34.f3 Qf3 35.Qf3 Bf3-+) 33...Rc6 34.Ne3-/+) 33.Ne3 (33.Nf6 Bf6 34.Qf6 Qc8+=) 33...Rcc8 34.Qg3 (34.Ng4 Bh1 35.Qg3 Rc6-/+) 34...Bh6 (better 34...e5!?-/+) 35.Ng4 Bg7 36.h4 (36.Ne3 e5-/+) 36...h5 (36...Kh8!?-/+) 37.Ne3=+ Kh7 38.Reb1 (38.Nd5!? ed5 39.Re8 Re8 40.Qc7 Re1 41.Kh2=+) 38...Be4-/+ 39.Rc1 e5 40.Rf6?? (better 40.Rd1-+) 40...ed4 (better 40...Bf6 41.Nc4 Qc6 42.Ne5 Be5 43.de5 Qd5-+) 41.Qg6 (41.Rd6 de3 42.Be3 Rc1 43.Bc1-+) 41...Bg6 42.Rf7 (42.Rf7 Bf7 43.Nf1-+). alifie (2495) - Lapinews (2625), Rated Bullet game, lichess.org, 2021. (=1.e4 c5 2.b4)

4.c3 Nc6 5.d4 e5 6.d5 Na5 7.Ba3 Nf6 8.Nd2 0-0 9.Bd3 b6 (9...Re8!?+/-) 10.cb6+- d6 11.ba7 Ra7 12.Bb4 Ba6 13.Ba6 Ra6 14.Ngf3 Nd7 15.0-0 Nb7 16.a4 Nbc5 17.a5 f5 18.ef5 gf5 19.Nc4 Qc7 20.Nfd2 Rc8 (20...e4 21.Qh5+-) 21.Qh5 Rf8 22.Rfe1 Rf6 (22...e4 23.Qg5+-) 23.Qh4 (23.Re3 e4+-) 23...Rf8 (23...Nd3 24.Red1+-) 24.Qh3 h6 25.Reb1 f4 26.Nb3?? (better 26.Bc5 Nc5 27.Rb6 Rb6 28.ab6+-) 26...Nb3=+ 27.Rb3 (27.Ne5 Ne5 28.Rb3-/+) 27...Nc5?? (better 27...Qc4 28.Rbb1 Nc5-+) 28.Bc5+- Qc5 29.Nb6 (better 29.Rb7 Kh8 30.Qd3+-) 29...Ra5+/- 30.Qe6 Kh8 31.Rab1 Ra2 32.Rf1 Rf6 33.Nd7 Re6 34.Nc5 Re8 (34...Rg6 35.Ne6 f3 36.g3+/-) 35.Ne6 Bf6 36.Rb7 Re7 (36...Kg8!?+/-) 37.Rb8 Kh7 38.Rf8 (38.Rb6!? e4 39.Rd6 Bc3 40.Nf4 Rf7+-) 38...Bg7 (38...Kg6!?+/-) 39.Rd8 Rc2 40.Rd6 Rc3 41.Nd8 (41.Rd1!?+-) 41...Rd3 42.Re6 (better 42.Re1+/-) 42...Rd7 43.Nc6 Attacks the backward pawn on e5 43...R3d5 44.Ne7 R5d6 45.Rd6 Rd6 46.Nc8 Rc6 47.Nb6?? (better 47.Ne7 Rc2 48.Nd5=+) 47...Rb6-+ 48.f3 Re6 49.h4 (49.Re1 Kg6-+) 49...e4 (better 49...Kg6-+) 50.Kh2 (50.fe4 Re4 51.Kf2-+) 50...e3 51.Kh3 (51.g3 e2 52.Rh1 e1Q 53.Re1 fg3 54.Kg3 Re1-+) 51...e2 52.Re1 Bc3 53.Re2 Re2 54.g4 (54.h5 Re5 55.g3 Rh5 56.Kg4 fg3 57.Kg3 Be5 58.Kf2 Bf4 59.Ke2 Re5 60.Kd3 h5 61.Kc3 h4 62.Kb3 h3 63.Kb2 h2 64.Kc2 h1Q 65.Kc3 Qc1 66.Kb4 Bd2 67.Kb3 Re3 68.Ka4 Qc4) 54...Re3 (54...Kg6 55.h5 Kf6 56.g5 Kf5 57.gh6 Bd4 58.h7 Bg1 59.h8Q Rh2) 55.g5 Rf3 56.Kg4 Rg3 (better 56...Rf1 57.Kf5 f3 58.g6 Kg8-+) 57.Kh5 (57.Kf4 Rg1 58.gh6 Kh6 59.Ke4-+) 57...hg5 (57...f3 58.gh6 Kh8 59.h7 f2 60.Kh6 f1Q 61.Kh5 Qf3 62.Kh6 Bg7) 58.hg5 Kg7 59.g6 (59.Kh4 Be5 60.Kh5 f3 61.Kh4 f2 62.g6 f1Q 63.Kh5 Qh3) 59...Rg1 (59...Kf6 60.Kh4 Kf5 61.g7 Bf6 62.Kh5 Rh3) 60.Kh4 f3 61.Kh3 f2 62.Kh2 f1R 63.Kh3 Rf2 64.Kh4 Rh2 0-1. alifie (2470) - Microsoft_Office3000 (2410), Rated Bullet game, lichess.org, 2020. (=1.e4 c5 2.b4)

4.c3 Nf6 5.Qc2 Qa5 6.Ba3 Nc6 7.d3 Nd4 8.Qc1 0-0 9.Ne2 Nc6 10.g3 Ng4 11.d4 Bd4 12.Nd4+= Nd4 13.Bb4 Nf3 14.Ke2 Qc7? 15.Kf3+- f5 16.e5?? Qc6-+ 17.Kf4 Qd5 18.Qe1-/+ e6?? 19.Rg1 Nh2 20.Bg2 Qc4 21.Ke3 Ng4 22.Kd2 a5 23.Ba3 Rb8 24.f4 b5 25.Qe2 Qe2 26.Ke2 b4 27.Bb2 Ba6 28.Kd2 Rfc8 29.cb4 Rb4 30.Bc3 Rbb8 31.Bf1?? Bf1+/- 32.Rf1 Rc5 33.a4 Rd5 34.Ke2 Rc5 35.Ra2 Rb1+/- 36.Rb1 Rc3 37.Rg1?? Kf7 38.Kd2= Rf3 39.Rc2 Ra3 40.Rc4 Ke7 41.Rd4? Nh2-+ 42.Ke2 Nf3 43.Rgd1 Nd4 44.Rd4 Rg3 45.Rd1 -+. gstevenson (2235) – hypermode (2270), net–chess.com, 2009.

4.d4 Nc6 5.Nf3 d6 6.cd6 Qd6 Pawn d4, live or die! 7.Be3 Bg4 8.c3 e5 (8...Bh6 9.Bh6 Nh6 10.Nbd2+-) 9.d5+- Nb4?? (better 9...Nb8+-) 10.cb4 Qb4 11.Nbd2 Nf6 12.Rb1 Bf3 (12...Qa5 13.Bb5 Kf8 14.0-0+-) 13.gf3 (13.Qf3 Qe7+-) 13...Qe7 (13...Qa5 14.Rb7 0-0 15.Qb3+-) 14.Qa4 Nd7 (14...Kf8+-) 15.Rb7 Rd8 (15...a6 16.Bc5! Qd8 17.Nc4+-) 16.Bb5 Bf6 (16...0-0+-) 17.Bd7 Kf8 18.Bc6 Qd6 19.Nc4 (19.Nc4 Qe7 20.Re7 Be7 21.Bh6 Kg8 22.Qa7 Bb4 23.Ke2 Rf8 24.Ne5 Ba5 25.Bf8 Bc7 26.Qc7 Kf8 27.Qf7) 1–0. marekt (2505) – JPKN3 (1920), ChessWorld.net, 2020. (=1.e4 c5 2.b4 g6)

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    Available lines:
  • 1.b4 (4 players, 1 day/move)
  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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