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TESTH900 Release 2024-07-01
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(c) Marek Trokenheim

1.b4 e5 2.Bb2 f6 3.e4 c6

(...)

4.a3 b5 5.Nc3 (5.d4 ed4 6.Bd4 (6.Qd4 a5 7.Be2 Na6 8.c3 Nc7 9.Nf3 d5) 6...a5+= 7.c3 d5 8.Bd3 de4 9.Be4 Nh6; 5.a4 A) 5...ba4 6.Ra4 d5 7.ed5 cd5 8.d4 Nd7 9.Bb5 Rb8; B) 5...Bb7 6.c3 (6.Qh5 g6 7.Qe2 Bb4 8.ab5 Qb6 9.Ba3 a5; 6.ab5 cb5 7.Nc3 Bb4 8.Qg4 Nh6 9.Qg7 Nf7) 6...a5 (6...d5 7.ed5 Qd5 8.ab5 cb5 9.Qh5 Kd8) 7.ba5 Ra5 8.d4 ba4 9.Ra4 Ra4; C) 5...Bb4 C1) 6.Qg4 g6 (6...Bf8 7.ab5 a6 8.Qf3 Qb6 9.c4 cb5) 7.ab5 d5 8.Qh4 Be7 9.ed5 cd5; C2) 6.ab5 d5 (6...a6 7.c3 Bf8 8.d4 cb5 9.Bb5 Bb7) 7.Ra4 Bd6 8.ed5 cd5 9.d4 Nd7) 5...d6 (5...a5 6.ba5 Bc5 7.Nge2= (7.Nf3 Ra5 8.Be2 Qe7 9.Nh4 Nh6) 7...Qa5 8.Nc1 Qa7 9.Qh5 g6) 6.f4 (6.a4 ba4 7.Ra4 Nd7+= (7...d5 8.ed5 cd5 9.Bb5 Bd7) 8.d4 Nb6 9.Ra1 d5 ; 6.d4 ed4 7.Qd4 a5 8.Nf3 Be6 9.Be2 Nd7) 6...ef4 (6...a5 7.Nge2= Bg4 8.h3 Bh5 9.Qc1 Bf7) 7.Nf3 (7.Nb5 a5 (7...cb5 8.Qh5 g6 9.Qd5 Nc6) 8.Nd4+= ab4 9.ab4 Ra1; 7.a4 ba4 8.Qh5 g6 9.Qf3 a3) 7...g5 (better is 7...a5!?+= 8.Be2 ab4 9.ab4 Ra1) 8.Ng5!+/- fg5 9.Qh5 Kd7 10.Be2?? (10.Nb5 a6 11.Nd6 Bd6 12.Bh8 Qe7+/-) 10...h6?? (10...Nh6 11.Nd5 cd5 12.Bh8 de4 13.Bb5 Kc7+=) 11.0-0?? (better is 11.Nb5 Rh7 12.Bg4 Ke7 13.Bc8 Qc8 14.Nd6 Kd6 15.Qg6 Qe6 16.e5 Kd7 17.Qh7 Ne7 18.0-0+/-) 11...Nf6 (11...Bg7 12.Nd5 Qf8 (worse is 12...cd5 13.Bg7 Rh7 14.Qg6 Rg7 15.Qg7 Kc6 16.a4+/-) 13.Nf4 gf4 14.Qg4 Ke7 15.Bg7 Bg4 16.Bf8 Kf8 17.Rf4 Nf6 18.Bg4 Ke7-/+) 12.Qf3? (12.Nd5 cd5 (12...Nh5?! 13.Bg4 Ke8 14.Bh5 Kd7 15.Bg4 Ke8 16.Bh5 Kd7 17.Bg4 Ke8 18.Bh5=) 13.Qf7 Qe7 14.Bb5 Kc7 15.Qf6 Qf6 16.Bf6 Rg8 17.ed5 a6-/+) 12...Kc7 (12...Qb6 13.Kh1 Bg7 14.Rae1–+) 13.d4 (13.Nb5!? Kb7 14.Qd3-/+) 13...Bg4–+ 14.Qd3 Nbd7 (14...Bg7 15.a4 ba4 16.Ra4 Be2 17.Ne2–+) 15.d5 (better is 15.a4 ba4 16.Bg4 Ng4 17.b5-/+) 15...cd5?? (better is 15...Ne5 16.Qd1 Be2 17.Ne2 Nc4–+) 16.Nd5 (better is 16.Bg4 de4 17.Ne4 Ng4 18.Bh8+-) 16...Kb8?? (better is 16...Nd5 17.Bg4 Ne3 18.Bd7 Qd7 19.Bh8 Nf1 20.Rf1 Qc6+=) 17.Qb5+- Nb6 18.Bf6 (18.Nf6?! a6 19.Qd3 Be2 20.Qe2 Bg7+-) 18...Bd7 (18...Qd7 19.Bh8 Qb5 20.Bb5+- (20.Bg4?! Nd5 21.ed5 Qb6 22.Rf2 Qc7+/-)) 19.Qd3 (better is 19.Qa5 Qc8 20.Nb6 ab6 21.Qb6 Qb7 22.Qb7 Kb7 23.Bh8 Bc6+-) 19...Be7 (19...Qc8 20.Nb6 ab6 21.Bh8 Bc6+-) 20.Be7 Qe8 (20...Qc8 21.Bd6 Kb7+-) 21.Bd6 Kb7 22.Nf6 Qe6 23.Nd7 Nd7 24.Qa6 1–0. kehrsam – gordiemac, ChessWorld.net, 2009.

4.a3 d6 5.d4+= Nd7 (5...Ne7 6.Nf3 (6.c4 Nd7 7.Nf3 Qb6 8.Bc3 Ng6 9.Be2 Nf4+=; 6.Be2 ed4 7.Bd4 d5 8.Bh5 Ng6 9.e5 fe5=; 6.Bd3 a5 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 Qb6+=; 6.Nd2 Be6 7.Ngf3 Ng6 8.Be2 Nf4 9.0-0 Nd7+=) 6...Bg4 7.Be2 a5 8.0-0 ab4 9.ab4 Ra1+=; 5...Nh6 6.Nd2 (6.Be2 Be7 7.Nf3 f5 8.de5 fe4 9.Nfd2 d5=; 6.Bd3 a5 7.b5 Qb6 8.Nf3 Bg4 9.Nbd2 cb5+=; 6.Nf3 f5 7.Nbd2 fe4 8.Ne4 d5 9.Ng3 e4=) 6...Be7 7.Ngf3 0-0 8.Bd3 ed4 9.Nd4 f5+=; 5...Be6 6.Nf3 (6.c4 Qb6 7.Nf3 a5 8.b5 Bg4 9.Nbd2 c5+=; 6.d5 Bf7 7.Nf3 a5 8.b5 cd5 9.ed5 Nd7+=; 6.Bd3 a5 7.b5 Qb6 8.Nf3 Bg4 9.Nbd2 cb5+=; 6.Nd2 Nd7 7.Ngf3 Nb6 8.c4 Nh6 9.Be2 Be7+=) 6...Nd7 7.Nbd2 Nb6 8.c4 a5 9.b5 c5+/-) 6.Nf3 b5 (6...Nb6 7.c4+= a5 8.Bd3 ab4 9.ab4 Ra1+=) 7.d5+/- Bb7 8.Nc3 Nb6 (8...a6!?+= 9.dc6 Bc6+=; 8...Qb8 9.dc6 Bc6+/-) 9.dc6+/- Bc6 10.Bb5 Qc7 (10...Bb5 11.Nb5 Qd7 12.Nc3+-) 11.Bc6 Qc6 12.b5 0-0-0?? (better is 12...Qc7+-) 13.bc6 Nc4 14.Qd3 Nb2 15.Qa6 1–0. market (2155) – NN, GameColony.com, 2002.

4.a3 f5 5.ef5+- Qh4 6.Be5 Qe4 (6...d6 7.Bb2+-) 7.Qe2+- Qe2 8.Ne2 d6 9.Bb2 Bf5 10.d3 (10.Nd4 Bd7+-) 10...Bg4 (10...Nf6 11.Nd4 Bd7 12.Be2+-) 11.Nf4 d5 12.Nc3 (better 12.Be2 Be2 13.Ke2+-) 12...Bd6? (12...Nf6 13.h3 Bd7 14.Nce2+-) 13.h3?? (13.Nfd5 Na6 14.Ne4 Bf8+-) 13...Nf6? (better 13...Bf4 14.hg4 Be5+-) 14.hg4+- Bf4 15.Be2?? (better 15.Ne2 Bg5 16.f4 Ng4 17.fg5+-) 15...Nbd7 16.0-0 (16.g3 Be5+-) 16...Bd2 (16...0-0-0 17.g3 Bd2 18.Nb1+-) 17.f4 (17.Rad1 Bc3 18.Bc3 h6+-) 17...d4 18.Nb1 (18.Ne4 Be3 19.Kh1 0-0+-) 18...Be3+= 19.Kh1 0-0-0 20.c3 (20.c4!?+=) 20...h5=+ 21.cd4?? (better 21.g3 Ng4 22.Kg2=+) 21…hg4 0–1. rimazu – laure, net–chess.com, 2018.

4.c3 Nh6 (4...d5 5.ed5 Qd5 (5...cd5 6.Nf3 Nc6 7.b5 Na5 8.d4 e4 9.Nfd2=) A) 6.Qh5 Kd8 (6...g6 7.Qe2 Be6 8.a3 a5 9.d4+=) 7.Qe2+= Be6 8.a3 a5 9.b5+=; B) 6.Nf3 Bd6 7.Qc2 Bg4 8.Be2 Ne7 9.c4=) 5.d4 (5.Bc1 d5 (5...Nf7 6.d4 d5 7.de5 Ne5 8.f4 Nf7 9.ed5=) 6.d4 Nf7 7.de5 Ne5 8.f4 Nf7 9.ed5=; 5.Qh5 g6 6.Qe2 d5 7.d4 de4 8.de5 f5 9.Nd2=) 5...d6 (5...d5 6.de5 fe5 7.Nf3= Bg4 8.Be2 Qd6 9.ed5=; 5...ed4 6.Qd4 d5 7.Bd3 Qe7 8.Ne2 de4 9.Qe4=) 6.Qa4 (6.Nf3!?+= f5 7.Nbd2 fe4 8.Ne4 d5 9.Nc5=) 6...Bd7 (6...ed4 7.cd4 Qe7 8.Nc3 d5 9.b5+=) 7.Na3 (7.Nf3 d5 8.Qc2 (8.de5 de4= 9.Nfd2=) 8...ed4 9.Nd4=; 7.Bc1 ed4 8.Bh6 gh6 9.Qd1=) 7...b5 (7...ed4!? 8.Rd1 dc3 9.Bc3 Qe7-/+) 8.Qd1= Be7 (8...ed4 9.Qd4=) 9.de5 (9.Nf3 a5 10.d5 0-0=; 9.Bd3=) 9...de5. Gopinath Kuppan – polo, internet, 2010.

4.c4 d5 5.Be2? (5.cd5!? Bb4 6.a3=) 5...Bb4 (5...de4 6.c5-/+) 6.Qa4? (better 6.cd5 Ne7 7.dc6 Nbc6 8.Nf3=+) 6...h5?? (better 6...Qb6 7.cd5 Bc5–+) 7.Qb4+- a5 (7...Na6 8.Qc3 de4 9.Qg3+-) 8.Qc3 Qd6? (8...de4 9.Qg3 Kf7 10.Qe3+-) 9.Qg3 (9.cd5!? Qd7+-) 9...g5 10.h4 g4 11.Ba3 Qe6 (11...Qd8 12.cd5 cd5 13.Nc3+-) 12.cd5 Qd7 (12...cd5 13.Nc3 de4 14.Ne4+-) 13.Qb3 (13.Nc3 Na6+-) 13...b5 (13...Ne7 14.Nc3 Ng6 15.Na4+-) 14.dc6 Qc6 (14...Nc6 15.Bb5 Ba6+-) 15.Bb5 Be6 16.Bc6 (16.Qe6 Kd8 17.Bc6 Ra6 18.Qd5 Kc8 19.Bb7 Kc7 20.Qf7 Nd7 21.Ba6 Ne7 22.Be7 Nc5 23.Bc5 Kc6 24.Qd5 Kc7 25.Qd6) 16...Kf7 17.Qb7 Kg6 18.Qa8 (18.Be8 Bf7 19.Qf7 Kh6 20.Bf8) 18...Nc6+- 19.Qc6 Bf7 20.Qc7 (20.f4 gf3 21.Nf3 Kg7+-) 20...Nh6 21.Nc3 Re8 22.Qa5 Re6 23.Nd5 Re8 24.Ne7 (24.Ne2 Kg7+-) 24...Kh7 25.Ne2 Bc4 26.Qa7 Kg7 27.Nf5 Kg6 (27...Kg8 28.Qg7) 28.Qg7 1–0. MARYMARY – Darrell, ChessWorld.net, 2010.

4.Bc4 Qb6 5.a3 Nh6 6.Qh5 g6 7.Qf3 Bg7 8.g4 (8.Nc3 f5+=) 8...d6 (better 8...a5=) 9.h4 (better 9.h3=) 9...Bg4-/+ 10.Qg3 Bd7 (10...f5 11.h5 Bf6 12.hg6 hg6 13.Be2=+) 11.f4 (11.h5 g5-/+) 11...a5 (11...f5 12.fe5 fe4 13.h5–+) 12.fe5 (12.h5 ab4 13.hg6 ba3 14.Bf7 Ke7 15.Ba3 ef4–+) 12...de5 (12...fe5 13.h5 ab4 14.hg6 ba3 15.Bb3=+) 13.h5 g5 14.Be5? (better 14.Nf3 ab4 15.Ne5-/+) 14...fe5–+ 15.Qg5 Kf8?? (better 15...Qd4 16.Nc3 Rf8 (16...Qc4?! 17.Qg7 Rf8 18.Qe5 Kd8 19.Qg5 Kc8 20.Nge2–+) 17.Qg7 ab4–+ (17...Qc4?! 18.Qe5 Kd8 19.Qg5 Kc8 20.Nge2–+)) 16.Ne2+- Nf7? (16...Be8!? 17.Rf1 Bf7 18.Bf7 Nf7+-) 17.Rf1 (17.Bf7 c5 18.Rf1 Bh3+-) 17...Be8 18.h6 Do you see the mate threat? 18...Rg8 19.hg7 Rg7 20.Qh6 (20.Qe5! Nd7 21.Qd6 Kg8+-) 20...ab4 (20...Kg8 21.Qe6 Nd7 22.ba5+=) 21.Bf7 Bf7 22.Qd6 (22.ab4 Na6+-) 22...Kg8+= 23.ab4 Na6 24.Nbc3 (better 24.b5 Qb5 25.Nbc3+=) 24...Qc7?? (better 24...Qd8!? 25.Qd8 Rd8=) 25.Qc7 (better 25.Ra6 Qd6 26.Ra8 Qf8 27.Rf8 Kf8 28.Rf5+-) 25...Nc7+- 26.Ra8 Na8 27.b5 (27.Rf5 h5+-) 27...Nc7 (27...Nb6!?=) 28.bc6+- bc6 29.d4 (29.Rf5!?+-) 29...Rg5= 30.de5 Re5 31.Rg1 Kf8 32.Rh1 Bg6 The isolani on e4 becomes a target 33.Rf1 (33.Kd2 Be4 34.Ne4 Re4 35.Rh7 Re7=) 33...Ke7 34.Rf4 (better 34.Kd2!?=) 34...Ne6-/+ 35.Rh4 Kf6 (35...Ng5 36.Kf2 Ne4 37.Ne4 Re4 38.Nf4-/+) 36.Rh6 (better 36.Kf2!?=) 36...Kg5-/+ 37.Rh1 Be4 38.Ne4 Re4 39.Rg1 (39.Rh7!? Nd4 40.Rg7 Kf6 41.Rg2 Nc2 42.Kd2-/+) 39...Kf6 40.Rh1 (40.Kd2–+) 40...Ng5?? (better 40...Nd4 41.Kd2 Ne2 42.Rh7 c5–+) 41.Rh6-/+ Kg7 (41...Ke7 42.Rc6 Ne6 43.Rc8-/+) 42.Rc6=+ Ne6 43.Kd2?? (better 43.Rd6=+) 43...Re2!–+ 44.Ke2 Decoy to e2 44...Nd4 Theme: Double Attack 45.Kd3 Nc6 46.Kc4 (46.Ke4 Kf6–+) 46...Kf6 47.Kd3 Ne5 48.Ke2 h5 49.Kf2 Kf5 50.Kg3 Kg5 51.Kh3 h4 52.c3 Nc4 53.Kh2 Kg4 54.Kg2 h3 55.Kh2 Kh4 (55...Nd2 56.c4 Nf3 57.Kh1 Kg3 58.c5 h2 59.c6 Ne5 60.c7 Nd3 61.c8Q Nf2) 56.Kh1 (56.Kg1 Kg3 57.Kf1 h2 58.Ke1 h1Q 59.Ke2 Qf3 60.Ke1 Qe3 61.Kd1 Qd2) 56...Kg3 57.Kg1 Nd2 58.Kh1 h2 59.c4 Ne4 (59...Nc4?!=) 60.c5 Nf2 0–1. sirgeshdb (1660) – woll (1930), lichess.org, 2020.

4.Bc4 Nh6 5.Nc3 b5 (5...Bb4 6.Qh5 Ke7 7.Qf3=+) 6.Bb3 Bb4 7.Qh5 Ke7 8.a4 a5 (8...ba4!? 9.Ra4 Na6=+) 9.ab5+= cb5?? (better 9...Bc3 10.dc3 cb5=) 10.Nd5+- Kd6 (10...Kf8 11.Nb4 Na6 12.Na6 Ra6 13.Qe2+-) 11.Nb4 Bb7 (11...Nc6 12.d4! Nb4 13.de5 Kc7 14.ef6+-) 12.Nd5 (better 12.d4 Qe7 13.Nd5 Bd5 14.Bd5+- (worse 14.ed5 ed4 15.Ne2 Qe5+-)) 12...a4 (12...Bd5 13.Bd5 Nc6+-) 13.Ba3 Kc6 14.Be7 Qc8 (14...ab3 15.Ra8 (15.Bd8 Ra1 16.Ke2 b2+=) 15...Ba8 16.Bd8 bc2 17.Ne2 Rd8 18.Qf3+-) 15.c4 (15.Qf3 d6 16.Bf6 ab3 17.Qc3 Kd7 18.Nb6 Ke6 A) 19.Qc8? A1) 19...Bc8? 20.Na8 (20.Ra8? b2 21.Bg7 b1Q 22.Ke2 Rg8–+) 20...Kf6 21.cb3+-; A2) 19...Rc8 20.Na8 Rc2–+; B) 19.Na8?! Kf6 20.cb3 Qc6+-; C) 19.Ra8 Qc3 20.dc3 b2 21.Bg7 b1Q 22.Kd2 Be4 23.Bh6 Qc2 24.Ke1 Bg2–+; D) 19.Nc8 Rc8 20.Qb3 Kf6 21.Ra8 Ba8 22.Qa3 Be4 23.Qd6 Kf7 24.Nh3+- (24.Qe5?! Bg2 25.Nf3 Bh1 26.Ng5 Kg6+-)) 15...ab3 (15...d6 16.cb5 Kd7 17.Bf6 ab3 18.Qh3 Ke8 19.Qc8 Bc8 20.Ra8 b2+-) 16.cb5 Kb5 17.Qe2 Kc6 (17...Qc4 18.Nc7 Kb6 19.Na8 Kb5 20.Nc7 Kc6 21.Qc4 Kb6 22.Qc5) 18.Rc1 (18.Qc4) 1–0. Pierre – Ermani, internet, 2020.

4.d4 d6 5.de5 de5 6.Qf3 (better 6.Qd8 Kd8 7.a3+=) 6...Bb4-/+ 7.c3 Be7 8.Be2 h5 9.h4 Bg4 10.Qg3 Qb6 11.Bc1 Bc5 12.Bg4 Bf2?? (better 12...hg4 13.a4 Nh6=+) 13.Qf2+- Qf2 14.Kf2 hg4 15.Kg3 Nd7 16.Kg4 Nh6 17.Kg3 Nf7 18.Nf3 Nc5 19.Rd1 (better 19.Nbd2+-) 19...Ne4= 20.Kh2 Nf2 21.Rd2 Ne4 22.Rd3 0-0 (22...f5 23.Kg1=) 23.Be3 Nh6 (23...f5!?=) 24.Bh6+/- gh6 25.h5 (25.Nbd2 Nc5 26.Re3 Rad8+/-) 25...Ng5 (25...Rad8 26.Re3 Nf2 27.Kg1+=) 26.Nh4 (26.Ng5!? fg5 27.Rd6+-) 26...Rad8 27.Rd8 Rd8 28.Na3 Rd2 (28...Rd3 29.Nc4+=) 29.Nf5 Nf3 (29...Rf2 30.Nd6+/-) 30.Kg3 Nd4? (better 30...Ng5 31.Nc4 Ne4 32.Kh2 Rf2+/-) 31.Nh6 (better 31.cd4!? Rd3 32.Kh4 Ra3 33.de5 fe5 34.Nh6 Kg7+-) 31…Kg7 (31...Kg7 32.cd4 Rd3 33.Kh2 Kh6 34.de5 fe5+-) 0-1. tunniato (1645) - Easily_Distracted (1635), lichess.org, 2021.

4.Be5 Bb4 5.Qh5?? g6-+ 6.Qh4 fe5 7.Qd8 Kd8 8.c3 Be7 (better 8...Bd6-+) 9.Na3 (9.Nf3 d6-+) 9...d5 (better 9...Ba3 10.Nf3 Nf6 11.Ne5-+) 10.Nc2 Nf6 (10...de4 11.Rd1-+) 11.ed5 cd5 12.0-0-0 (12.Nf3 Nc6-+) 12...Nc6 (better 12...Ne4!? 13.Nf3 Nf2 14.Ne5-+) 13.Bd3 a6 14.Nf3 (14.Re1 Rf8 15.f3 Rb8-+) 14...e4 15.Ncd4 (15.Be2 ef3 16.Bf3 Re8-+) 15...Nd4 (15...ed3 16.Kb2-+) 16.Nd4 ed3 17.Nf3 (17.f3 Bc5-+) 17...Ne4 18.Rhe1 (18.Ne5 Ba3 19.Kb1 Rf8-+) 18...Bg4 (better 18...Ba3 19.Kb1 Nf2 20.Rc1-+) 19.h3 (19.Re3 Bf5 20.Rf1-+) 19...Bf3 20.gf3 Ba3 21.Kb1 Nf2 22.Re5 Nd1 23.Rd5 Ke7 (better 23...Kc7 24.Rd3 Nf2 25.Re3-+) 24.Re5 Kf6 25.Re1 (25.Rd5 Rhd8 26.Rd3 Rd3 27.Kc2 Rad8 28.f4 Rd2 29.Kb3 Rb2 30.Ka3 Rd5 31.Ka4 b6 32.f5 Ra5) 25...Nf2 (25...Rhe8 26.Rg1 Re2 27.Rd1 Rae8 28.Ka1 Re1 29.Rb1 Rb1 30.Kb1 Re1) 26.Rf1 Rhe8 27.Rf2 Re1 0-1. theCastle - Tata190 (2085), Rated Blitz tournament, lichess.org, 2014.

4.Nf3 d5 5.ed5 cd5 6.d4 a6 7.de5 fe5 8.Be5 Nd7 9.Qd5 Ne7 10.Qc4 Nf5 11.Bd3 b5 12.Qe6 Qe7 13.Qf5 Qb4 14.Nbd2 Qb2 15.0-0 g6 16.Bb2 gf5 17.Bh8 Rb8 18.Ne5 Ne5 19.Be5 Rb6 20.Rfe1 Bh6 21.Bd4 Kd7 22.Bb6 Be3 23.fe3 Normal 1-0. bibby - pablobarnes94, Rated Classical game, lichess.org, 2015. (=1.e4 c6 2.b4 e5 3.Bb2 f6)

4.f4 d5 5.fe5 de4 6.Nc3 f5 7.Nh3 Bb4 8.Nf4 Nd7?? (better is 8...Qg5 9.g3 Ne7 10.Qh5 Qh5 11.Nh5 g6 12.Nf6 Kf7=) 9.Qh5+- Ke7 (9...g6 10.Ng6! Ngf6 11.ef6 Nf6+-) 10.Qg5 Kf8 (10...Ke8 11.Qg7 Nf8+-) 11.Qd8 (11.Qd8 Kf7 12.Bc4) 1–0. merill – jjake, internet, 2011.

4.g4 Nh6 5.Nf3 Ng4 6.Bh3 Nh6 7.0-0 d5 8.d3 Bh3 9.Re1 Bd7 10.Nc3 Bb4 11.Qd2 Bg4 12.Qe3 Qb6 13.Reb1 Qe3 14.fe3 Bf3 15.ed5 cd5 16.Nd5 f5 17.Nc7 Ke7 18.Be5 Nd7 19.Na8 Ne5 20.Rb4 Ra8 21.Rb7 Kf8 22.Rab1 Bb7 23.Rb7 Nhg4 24.d4 Nf3 25.Kg2 Ne1 26.Kg1 Nc2 27.h3 Nge3 28.Rd7 Ke8 29.Rg7 Rd8 30.Rh7 Nd4 31.h4 Nf3 32.Kf2 Nh4 33.Rh8 Kd7 34.Rh4 Nd5 35.Rd4 Ke6 36.Ra4 Rd7 37.a3 Nc3 38.Ra6 Rd6 39.Ra7 Ne4 40.Ke2 f4 41.Ra8 Nc3 42.Kf3 Rd3 43.Kf4 Nd5 44.Ke4 Nf6 45.Kd3 Ke5 46.Re8 Ne8 47.a4 Nd6 48.Kc3 Ne4 49.Kb4 Nd6 50.a5 Kd5 51.a6 Kc6 52.Ka5 Nc4 53.Kb4 Nb6 54.a7 Kb7 55.Ka5 Ka7 Normal ½-½. Ensou - Ayase (1700), Rated Classical game, lichess.org, 2015. (=1.e4 e5 2.b4 c6 3.Bb2 f6)

4.Qg4+= d5 (4...Bb4?? 5.Qg7 Qe7 6.Qh8+-) 5.Qg3-/+ (5.Qh4 Ne7 (5...Bb4 6.ed5 Bd6 7.Nc3 Ne7 8.dc6 Nbc6 9.Ne4+=; 5...de4 6.Qe4 Ne7 7.Nf3 Bf5 8.Qc4 Nd5 9.b5+=; 5...Nh6+= 6.a3 de4 7.Nc3 f5 8.Qd8 Kd8 9.d3+=) 6.Be2 Qd6 7.a3 de4 8.Qe4 Bf5 9.Qc4+=; 5.Qh5 g6 6.Qh4 de4 7.Qe4 Bf5 8.Qc4 Ne7 9.Nf3+=) 5...de4 6.Bc4 (6.Nc3 Bf5 7.a3 Nd7 8.Rd1 Qb6 9.Bc4-/+) 6...Ne7 (6...Bb4?? 7.Qg7 Be6 8.Be6+- (8.Qh8?! Bc4 9.Qh7 Qb6+-); 6...Nh6 7.Qb3 b5 8.Be6 Be6 9.Qe6-/+) 7.Qb3 Qd7 8.Nc3 (8.Ne2 Nf5 9.a4-/+) 1–0. Lindberg,Rune – Cole,Steve, corr MCO, 1999.

4.h4 Bb4!? 5.Qh5 g6-/+.

4.h4 g6 5.a3 d5 6.Nc3 (6.ed5 cd5 7.d4 e4=) 6...de4 (6...d4 7.Nce2=+) 7.Ne4 Nd7 (7...Bf5 8.Ng3 Be6 9.d4 ed4 10.h5+=) 8.h5 f5?? (8...Nh6!?=) 9.Nc5?? (better 9.hg6 Ngf6 10.Ng5+-) 9...Nc5+/- 10.bc5 (10.Be5 Nf6 11.bc5 Bc5+=) 10...Qe7 (10...Bg7 11.Qe2 Qe7 12.hg6 hg6 13.Rh8 Bh8 14.Nf3+=) 11.hg6+/- Qc5?? (11...h6 12.Bc4 Bg7 13.Bf7 Kd8 14.Qe2 Qc5 15.c4+/-) 12.gh7 (better 12.Rh7 Bg7 13.Rg7+-) 12...Nf6+/- 13.Bd3 (better 13.Nf3+/-) 13...Rh7?? (better 13...Qe7+=) 14.Rh7+- Nh7 15.Qh5 Kd8 16.Qh7 e4 17.Bf6 Be7 18.Qh8 Kd7 19.Bd4 Qd5 20.Be2 c5 (20...b6 21.Qg7 Bb7 22.Bf6+-) 21.Bb2 b6 (21...Kc7+-) 22.Bb5 Kc7 23.Be5 (better 23.Qg7 Qd8 24.Bf6+-) 23...Bd6 24.Qg7 Kb8 25.Bd6 Qd6 26.0-0-0 (26.Rb1 Qh2 27.Bc6 Ba6+-) 26...a6 27.Be2 Qd5 (27...Ra7 28.Qb2+-) 28.c4 (28.d3 Qb7 29.Qg6 Ka7+-) 28...Qc6 (28...Qd6 29.d3 Ra7 30.Qb2 Qf4 31.Kc2 ed3 32.Kd3 Rd7 33.Kc2 Rd1 34.Kd1 (34.Bd1?! Qf2 35.Ne2 Ka7+-) 34...Qd6 35.Ke1+-) 29.f3 (29.d3 Ra7 30.Qe5 Qc7 31.Qc7 Rc7+-) 29...Qa4 (29...Qd6 30.Qh8+-) 30.Qe5 Ka7 31.Qc7 (31.Kb2!? Qc6+-) 31...Bb7 32.Kb2 b5 (32...Rc8 33.Qf4 Rg8+-) 33.Qc5 Kb8 34.Qf8 (34.Qf5 bc4 35.Qe5 Ka7 36.Qc5 Kb8 37.Qc4 Qc4 38.Bc4 Kc7+-) 34...Ka7 35.Qf5 bc4 (35...Rc8 36.Qd7 (36.cb5?? Rc2 37.Ka1 Qa3 38.Kb1 Qb2; worse 36.fe4 bc4 37.Qf3 Qb5 38.Ka1 Qe5 39.Qc3 Qe4+-) 36...Rc4 37.Bc4 Qd1 38.Qd4 Kb8 39.Be2+-) 36.Qc5 Kb8 37.Rc1 Qb3 38.Ka1 Qb5 39.Qc4 (39.Qd6 Ka7 40.Bc4 Qb6 41.Qb6 Kb6 42.Rb1 Kc5 43.Rb7 Kc4 44.fe4 Re8+-) 39...Qc4 40.Bc4 ef3 41.Nf3 Bf3 42.gf3 a5 43.Rb1 (43.Kb2 Ka7+-) 43...Ka7 (43...Kc7 44.Rb5+-) 44.Bd5 (44.Rb5 Rf8 45.Ra5 Kb6 46.Rb5 Kc6+-) 44...Rb8 (44...Re8 45.Rb5 Re2 46.d4+-) 45.f4 (better 45.Rb8!? Kb8 46.f4 Kc7+-) 45...Rf8 46.Rf1 (46.Rb7 Ka6 47.Rf7 Rd8+-) 46...Kb6 (46...Rd8 47.Ba2 Kb6 48.f5+-) 47.f5 Kc5 48.Be6 Kd6 (48...Re8 49.f6 Kd6 50.Bc4+-) 49.d4 Ke7 50.d5 Rf6 (50...Kd6 51.f6+-) 51.Bc8 (better 51.Rc1!? Rh6+-) 51...Kd6 52.Bb7 a4 53.Kb2 Ke5 54.Kc3 Rf5 55.Rf5 Kf5 56.d6 (better 56.Kb4+-) 56...Ke6 57.Bc6 (57.Kb4 Kd6 58.Ka4 Kc7+-) 57...Kd6 58.Ba4 Kc7 59.Bc2 Kb6 60.a4 (60.Kb4 Kc7+-) 60...Ka6 (60...Ka5 61.Bd1 Ka6+-) 61.Kb4 Kb6 62.a5 Kb7 63.Kb5 Ka7 (63...Kc8 64.a6 Kc7 65.Be4 Kd6 66.a7 Ke6 67.a8Q Kd7 68.Qf8 Kc7 69.Qe7 Kc8 70.Kc6 Kb8 71.Qb7) 64.a6 Ka8 65.Kb6 Kb8 66.a7 (66.Bf5 Ka8 67.Bd7 Kb8 68.a7 Ka8 69.Bc6) 66...Kc8 67.a8Q Kd7 68.Bf5 (68.Bb3 Kd6 69.Qd5 Ke7 70.Qe5 Kd8 71.Bf7 Kd7 72.Qc7) 68...Ke7 69.Qa7 (69.Qh8 Kf7 70.Kc6 Ke7 71.Qg7 Ke8 72.Bg6 Kd8 73.Qd7) 69...Kf8 (69...Kf6 70.Qd7 Ke5 71.Qe6 Kf4 72.Qe4 Kg3 73.Qe3 Kg2 74.Bh3 Kh2 75.Qf3 Kg1 76.Qg2) 70.Be6 Ke8 71.Qd7 Kf8 72.Qf7 1-0. Ze_cAt – sundanli, Rated Classical game, lichess.org, 2013.

4.a3 g6

5.d4 ed4 6.Qd4 (6.Bd4 d5 7.ed5 Qd5 8.Nf3 a5 9.Qe2 Qe6+=; 6.Nf3 a5 7.Qd4 ab4 8.ab4 Ra1 9.Ba1 d5+=) 6...d6 (6...Qe7+= 7.Be2 a5 8.b5 d5 9.ed5 cb5+/-) 7.Nf3 Nd7 8.Be2 Ne5 9.0-0 Bg7+=.

5.Nf3 Na6 6.Bc4 Ne7 7.d3 d6 8.Nbd2 Bg4 9.0-0 Bf3 10.Qf3 Nc8 11.Qh3 Be7 12.f4 ef4 13.Rf4 d5 14.ed5 cd5 15.Bb5 Kf8 16.Re1 Nd6 17.Qh6 Kf7 18.Ba4 Rg8 19.Bb3 Nc7 20.Qh7 Rg7 21.Qh3 Bf8 22.Qf3 Nde8 23.Nf1 Nb5 24.Ng3 a6 25.Ne2 Qd6 26.Nd4 Qc6 27.Nc6 bc6 28.Bf6 Rd8 29.Bg7 1-0. Mustanglx - K1san, Rated Bullet game, lichess.org, 2019.

5.Nf3 d5 6.ed5 cd5 7.Be2= Bf5 8.0-0 a5 9.b5 Qc7+=.

5.Nf3 Be7 6.Bc4 (6.d4 d5 7.Nc3 de4 8.Ne4 f5+= 9.Nc5 b6+=; 6.Nc3 d6 7.Be2 f5 8.d4 fe4 9.Ne4 d5+=; 6.Be2 d5 7.ed5 cd5 8.0-0 a5 9.b5 d4+=) 6...d5 (6...a5 7.0-0= d5 8.ed5 cd5 9.Bb5 Bd7=) 7.ed5 cd5 8.Bb5 (8.Be2 Nh6= (8...Nc6 9.0-0 Be6=) 9.0-0 0-0=) 8...Bd7 (8...Nc6 9.0-0= a5=) 9.Nc3 (9.Be2 Bd6= (9...a5 10.b5 e4=)) 9...a6 (9...Bb5!? 10.Nb5 d4+=) 10.Be2 (10.Bd7 Qd7 11.0-0 a5=) 10...d4 (10...Bf5 11.0-0=) 11.Nd5 (11.Ne4 Bc6 12.Ng3 Qd7=) 11...Bc6 (11...Bf8 12.c4=) 12.Ne7 Qe7 (12...Ne7 13.0-0=) 13.0-0+= e4? (better is 13...Qd6+=) 14.Nd4+- Qe5 (14...Nh6 15.Re1+-) 15.c4 Qg5?? (15...Qf4+-) 16.Ne6 (16.Ne6 Qh4 17.Nc7 Kd8 18.Na8+-) 1–0. Wall,Bill – Bflo, internet, 2003.

4.b5 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 cb5 8.Bb5 Qa5 9.Nc3 Bb4 10.Bd3 Nc6 11.Nf3 Nd4 12.Be2 Ne2 13.Ne2 d6 14.0-0 Bg4 15.c3 Bc5 16.Ne1 Be2 17.Qe2 Qa1 18.Nd3 Qa5 19.Nb2 Ne7 20.Nc4 Qa6 21.d3 0-0 22.h3 d5 23.Nd2 d4 24.c4 b5 25.Nb3 Qc6 26.Rc1 Rc8 27.Qg4 Kf7 28.Qh5 Kg8 29.Qg4 Rc7 30.Qd1 Nc8 31.Na5 Qb6 32.Ra1 bc4 33.Nc4 Qb4 34.Ra8 Ba7 35.Kh2 Qb7 36.Rc8 Rc8 37.Qa4 Bb8 38.Na5 Qa6 39.Qb3 Kf8 40.Nc4 f5 41.Ne5 Be5 42.g3 f4 43.Qd5 Re8 Time forfeit 0-1. pistadruzganic – CheckWhat, Rated Classical game, lichess.org, 2015.

5.a4 ab5 6.ab5 Ra1 7.Ba1 Qb6 8.c4 (8.d4 Qa5 9.Bc3 Bb4 10.Bb4 Qb4 11.c3 Qe7+=) 8...d5 (8...Bc5 9.Qh5 g6 10.Qf3=) 9.cd5 cd5 10.ed5 Qc5 (10...Bc5 11.d4 ed4 12.Bc4=) 11.Nc3+= Ne7 12.Be2 (12.Qb3 Ng6+=) 12...Nd5= 13.Nd5 (13.Nf3 Be6=) 13...Qd5 14.Nf3 Bg4 (14...Bd6!?=) 15.0-0+= Bd6 16.d4 (16.Qc2 Ke7+=) 16...e4= 17.Nd2?? (17.Re1 0-0 18.Nd2 Be2 19.Re2=) 17...Be2 (better 17...Qh5! 18.h3 Be2-+) 18.Qe2+= f5 (better 18...Kd8+=) 19.f4 (better 19.f3 0-0 20.fe4 fe4 21.Rf8 Bf8 22.Ne4+/-) 19...0-0=+ 20.h3 (20.Qc4!? Qf7 21.g4=) 20...Nd7-/+ 21.Qd1 (21.Qc4 Nb6 22.Qd5 Nd5-/+) 21...e3 (21...Qb5 22.Qc1-+) 22.Nf3 (22.Qb3 Qb3 23.Nb3 Nf6-/+) 22...Qc4 23.Ne5?? (better 23.Qb1 Bf4 24.Re1-+) 23...Ne5 (23...Be5!? 24.fe5 e2 25.Qe1 ef1R 26.Qf1-+) 24.fe5 e2 25.Qe1 (25.Qb1 ef1R 26.Qf1-+) 25...Bb4 26.Qf2 e1Q (better 26...ef1R 27.Qf1 Qf1 28.Kf1 Ra8-+) 27.Re1 Be1 28.Qe1 Qb5 29.e6 (29.Qc3 Ra8 30.Bb2-+) 29...Ra8 30.Bc3 Ra3 0-1. tolegen – Uuri, Rated Classical game, lichess.org, 2013.

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 8.ed5 cd5 9.Nf3=.

5.ba6 Na6 6.Nf3 (6.d4 ed4 7.Bd4 d5 8.ed5 Qd5=) 6...d5 7.ed5 Qd5 8.Nc3 Qd8 9.Bc4 (9.d4 Qa5 10.a3 ed4 11.Nd4 Nc5 12.Qh5 g6 13.Qe2 Kf7=) 9...Ne7 10.0-0 Bg4? (10...b5 11.Bb3 Nc5 12.d4 Nb3 13.ab3 Ra1 14.Ba1=) 11.Be2?? (better 11.Ne5 fe5 12.Qg4+-) 11...Nd5 12.Nd5 Qd5 (12...cd5 13.Re1 Be7 14.Bb5 Kf8 15.h3=) 13.h3 (13.d4 e4 14.Nd2 Be2 15.Qe2 Be7+/-) 13...Bh5 (13...Be6 14.d4 e4 15.Nd2+=) 14.c4 Qe6 15.d4 Bd6 (15...e4 16.Ng5 Be2 17.Ne6 Bd1 A) 18.Nf8? Be2 (18...Kf8?! 19.Rfd1 Nb4 20.Bc3=) 19.Ne6 Bf1 20.Kf1 Kf7-+; B) 18.Rfd1=) 16.de5 (16.Ng5 Be2 17.Ne6 Bd1 18.Ng7 Kf7+/-) 16...fe5 (16...Bf3 17.Bf3 fe5 18.Bh5 g6 19.Bg4+=) 17.Qb3 (17.Nd4 Be2 18.Ne6 Bd1 19.Rad1 Ke7 20.Ng7 Raf8+/-) 17...0-0 (17...Nc5 18.Qe3 Bf3 19.Qf3 Na4=) 18.Rae1?? (better 18.Ng5 Qf5 19.c5 Kh8 A) 20.cd6 Be2 21.Rfe1 A1) worse 21...Qg5 22.Re2 e4 23.Qb7+- (worse 23.Re4 Nc5 24.Rg4 Qg4 25.hg4 Nb3 26.ab3 Ra1 27.Ba1 Re8-/+); A2) 21...Qf2 22.Kh1 Nc5+=; B) 20.Bh5 Qg5 21.cd6 Qh5 22.Qb7+/-) 18...Nc5-/+ 19.Ng5 (19.Qe3 Bf3 20.Bf3 Qc4-/+ (worse 20...Ra2 21.Be5 Be5 22.Qc5=)) 19...Qf5 (19...Qh6 20.Qd1 Ra2 21.Bc1 Be2 22.Re2 Re2 23.Qe2-/+) 20.Qg3 (20.Qd1 Be2 (20...Qg5?! 21.Qd6 Be2 22.Re2=) 21.Re2 Rad8-/+ (21...Qg5?! 22.Qd6 e4 23.Bd4=)) 20...Be2-/+ 21.Re2 Nd3 (21...Ra2 22.Rd1 Bb8 23.Qe3-+) 22.Bc3 (22.Ne4 Nf4 23.Re3 Bb8=+) 22...Rad8 (better 22...Nf4!? 23.Ree1 Ra2-/+) 23.Ne4= Bb8 24.Qg4 (24.Re3 b6+=) 24...Qg4=+ 25.hg4 Nf4 (better 25...Ba7!?=+) 26.Rb2+= Rf7 27.Nc5 The backward pawn on b7 becomes a target (27.Rfb1 Ba7 28.g3+= (worse 28.Be5 Nd3=+; worse 28.Rb7 Ne2 29.Kh2 Rb7 30.Rb7 Nc3 31.Nc3 Bf2=+)) 27...b6= 28.Ne4 Bc7 29.g3 Nd3 (29...Ne6 30.Kg2=+) 30.Rb3 (30.Rd2 Rfd7+=) 30...Nc5 (better 30...Rfd7!?=+) 31.Nc5+= bc5 32.Re1 Re7 (32...Ra8 33.Rb2+=) 33.Kg2 (33.Re4!?+/-) 33...e4 34.a4 Ra8 35.Ra3 Ba5 36.Ba5 Ra5 37.Kf1 (37.g5 Kf7+=) 37...Kf7 38.Ke2 (38.Rae3 Ra4 39.Re4 Re4 40.Re4 h6+=) 38...Kf6 39.Ke3 Kg5 40.Rh1 h6 41.Rh5 Kg4 42.Rh4 Kf5 43.Rf4 Attacking the isolated pawn on e4 43...Kg5 44.Re4 Rd7 (44...Rea7 45.f4 Kf6 46.Re5=) 45.f3 (45.Re6 Rc7 46.Ke2 Kg4+/-) 45...h5 (better 45...Rda7!?=) 46.Re6+/- Rd4 (better 46...Kf5 47.Rc6 g5+/-) 47.Re4 (47.Re5!? Kf6 48.Rc5 (48.Rh5?! Rc4 49.Rh4 Rb4=) 48...Rc5 49.Kd4+/-) 47...Rd1 (47...Rd7!?=) 48.Ke2 Rc1 49.Re5 (49.Kd2!? Rb1 50.Re6+=) 49...Kg6 50.Re6 Kf7 51.Rc6 Rc4 Exerts pressure on the isolated pawn 52.Rc7 Kg6 53.Ke3 Ra6 54.a5 Kf6 (54...Re6 55.Kd2=) 55.Rc8 Re6 56.Kd3 (56.Kd2 Rd6 57.Ke2 Re6 58.Re3 Ra6=) 56...Rd4= 57.Kc2 Re2 58.Kc1 Rc4 59.Kd1 Re7 (59...Rg2 60.Rc6 Ke5 61.f4 Kd5 62.Rc7=) 60.a6 (60.Kd2 g5+=) 60...Ra7 (60...Rd4 61.Kc1 Re1 62.Kc2 Re2 63.Kc3 Re3 64.Kb2 Rd2 65.Kc1 Ra3 66.Rc6 Ke5 67.Kd2=) 61.Rc6 (61.Ke2 Ke6+/-) 61...Kf5 (61...Ke5 62.Re3 Kd5 63.Rce6 Rd4 64.Ke2=) 62.Kd2 g5 (better 62...Ke5+/-) 63.Ra5 (better 63.Rc3 Rc3 64.Kc3+/-) 63...Rd4?? (63...Rd7 64.Ke2 Rc2 65.Ke1 Rc1 66.Kf2 Rc2 67.Ke3 Rc3 68.Ke2 Rc2 69.Ke3 Rc3 70.Ke2 Rc2=) 64.Ke3 (better 64.Kc3!? Rd5 65.Kc4 Re5 66.Rcc5 Rc5 67.Kc5 Ra8+-) 64...Rc4?? (better 64...Re7 65.Kf2 Rd2 66.Kf1 Rd1 67.Kf2 Rd2 68.Kf1 Rd1 69.Kf2 Rd2=) 65.Rcc5 Rc5 66.Rc5 Kf6 67.Ra5 Kg6 68.Kd4 (better 68.f4 gf4 69.gf4+-) 68...Kf6? (better 68...h4 69.gh4 gh4+-) 69.Kc5 h4 70.gh4 gh4 71.Kb6 Ra8 72.Kb7 White prepares a7 72...Rh8 (72...Re8 73.a7 Re7 74.Kc6 Re6 75.Kd7 Re7 76.Kd8 Ra7 77.Ra7+-) 73.a7 Rh7 74.Kc6 h3 (74...Rh8+-) 75.a8Q h2 (75...Rh6 76.Qf8 Kg6 77.Qd6 Kg7 78.Ra7 Kg8 79.Qh6 h2 80.Qg7) 76.Qf8 Kg6 (76...Rf7 77.Qh6 Ke7 78.Qd6 Ke8 79.Ra8) 77.Rf5 (77.Qf5 Kg7 78.Ra7 Kh6 79.Rh7) 77...Rc7 (77...Rg7 78.Qf6 Kh7 79.Rh5 Kg8 80.Qe6 Rf7 81.Qg6 Kf8 82.Rh8 Ke7 83.Qd6) 78.Kc7 h1Q 79.Qf7 (79.Rf6 Kh7 80.Qe7 Kg8 81.Rf8) 79...Kh6 80.Rf6 Kg5 81.Qg7 (81.Qg7 Kh5 82.Rh6; 81.Rg6 Kh4 82.Qh7) 1-0. hersil (1765) – WPV, Rated Classical game, lichess.org, 2014.

4.b5 cb5

5.Bb5 a6 6.Ba4 b5 7.Bb3 Ne7 8.Nf3 (8.Qh5 g6 9.Qf3 Nec6+=) 8...d5= 9.0-0 (9.ed5 Nd5 10.Ne5+-) 9...de4-/+ 10.Ne1 Bb7 11.Qe2 Nbc6 (11...Nf5 12.a4 b4 13.c3-/+) 12.d3 (better 12.Qe4!? Qd7 13.Qe2=+) 12...Nd4-/+ 13.Bd4 ed4 (better 13...Qd4!? 14.c3 ed3 15.Qh5 g6 16.cd4 gh5 17.de5 fe5 18.Nd3 Bg7-/+) 14.de4= g6 (14...Qc7 15.Nf3=) 15.Qd3 Bg7 16.Nf3 Exerts pressure on the isolated pawn 16...Kf8?? (better 16...f5 17.ef5 gf5=) 17.Nd4+- Nc6?? (better 17...Bc8+-) 18.Nc6 (better 18.Ne6 Ke8 19.Nd8 Rd8 20.Qe3+-) 18...Qd3+/- 19.cd3 Bc6 20.Nd2 (20.Nc3 f5 21.Rac1 Rd8+/-) 20...Ke7 21.Nf3 Rad8 22.Rfc1 Bb7 (22...f5 23.Rab1 Bb7 24.Rc7 Rd7 25.Rd7 Kd7 26.Ng5+=) 23.d4 (23.Rc7 Rd7 24.Rac1 Bh6+/-) 23...Rd7 (23...Be4 24.Re1 f5 25.Bc2+=) 24.d5 (24.Re1 Re8+/-) 24...Rhd8 (24...f5 25.e5 Bd5 26.Bd5 Rd5 27.Rc7 Rd7 28.Rc6=) 25.Rc5 (25.Re1!?+/-) 25...f5+= 26.ef5?? (better 26.Rd1 Kd6 27.Rc2 fe4 28.Ng5+=) 26...Ba1-+ 27.Kf1 gf5 28.Ke2 (28.Rc1 Bf6-+) 28...Bd5 29.Bd5 Rd5 30.Rc7 R8d7 31.Rc6 R5d6 32.Rc5 (32.Rd6 Kd6 33.Nh4 f4-+) 32...f4 (better 32...Re6!? 33.Ne5 Be5 34.Kf1-+) 33.Rf5 (33.Rc1 Bb2 34.Rb1-+) 33...Be5! 34.Re5 (34.Ne5 Rd2 Double attack; 34.Re5 Kf6 Decoy) 34...Re6 35.Re6 Ke6 36.Ng5 Kf6 37.Ne4 Kf5 38.Kf3?? (38.f3-+) 38...Rd3 39.Ke2 Ra3 (better 39...Ke4 40.f3 Kd4-+) 40.Nd6 Ke6 41.Ne4 Ra2 42.Kf3 Ke5 43.Nd2 (43.Nc5-+) 43...b4 (43...Rd2 44.g3 fg3 45.hg3-+) 44.Ne4 (44.Ke2 Kd4 45.Ke1 Rc2 46.Nb3 Kd3-+) 44...b3 (better 44...Ra3 45.Ke2 Ke4 46.Kd2-+) 45.Nc5 b2 46.Nd3 Kf5 47.Nb2 Rb2 48.g3 Rb3 49.Kg2 (49.Ke2 f3 50.Kd2 Kg4-+) 49...fg3 (better 49...f3 50.Kh3-+) 50.hg3 a5 51.Kh2 a4 52.Kg2 (52.Kg1 a3 53.Kh2 a2 54.Kh1 a1Q 55.Kg2 Qd1 56.Kh2 Rb1 57.g4 Kf4 58.g5 Qh1) 52...a3 53.Kh2 (53.Kf1 a2 54.Kg2 a1Q 55.g4 Kf4 56.g5 Rh3 57.f3 Qh1 58.Kf2 Rh2) 53...a2 54.Kg2 (54.Kh1 a1Q 55.Kg2 Qd1 56.Kh2 Rb1 57.g4 Kf4 58.g5 Qh1) 54...a1Q 55.g4 Kg5 56.f3 (56.Kh2 Qf1 57.f4 Kh4 58.f5 Rb2) 56...Rf3! 57.Kf3 (57.Kf3 Qc3 Deflection) 57...Qd4 (57...Qe1 58.Kg2 Kg4 59.Kh2 Qd2 60.Kg1 Kf3 61.Kf1 Qd1) 58.Kg3 (58.Ke2 Kg4 59.Kf1 Kf3 60.Ke1 h5 61.Kf1 Qf2) 58...Qg4 (58...Qf4 59.Kg2 Kg4 60.Kg1 Kg3 61.Kh1 Qc1) 59.Kf2 h5 (59...Qe4 60.Kg3 Qf4 61.Kg2 Kg4 62.Kg1 Kg3 63.Kh1 Qc1) 60.Kf1 (60.Ke3 h4 61.Kd3 h3 62.Kc3 h2 63.Kd3 h1Q 64.Kd2 Qhd1 65.Ke3 Qgf3) 60...h4 61.Ke1 (61.Kf2 h3 62.Ke3 h2 63.Kd3 h1Q 64.Kd2 Qhd1 65.Ke3 Qgf3) 61...h3 62.Kd2 h2 63.Kd3 (63.Kc3 h1Q 64.Kd2 Qhd1 65.Ke3 Qgf3) ½-½. fishissushi (1920) - Manolis100 (1935), Rated Bullet game, lichess.org, 2020.

5.Bb5 Qb6 6.Nc3 a6 7.Qe2?? (better 7.Nd5 Qd6 8.Bc4+=) 7...ab5-+ 8.Nb5 d6 9.a3 Bd7 10.c4 Ra5 11.Bc3 Rb5 (better 11...Ra4!? 12.Rb1 Na6-+) 12.cb5-/+ Bb5 13.Qg4 Nh6 (13...Ne7!? 14.Qh5 Ng6 15.Ne2-+) 14.Qe6-/+ Be7 15.Qc8 (15.Rb1 Qc5 16.Rb5 Qb5 17.Qc8 Bd8 18.Qe6 Kf8 19.Qd6 Kf7 20.Qb8 Ng4-+) 15...Qd8 16.Qd8 Bd8 17.Rb1 Ba4 (17...Bc6!? 18.f3 d5 19.ed5 Bd5-+) 18.Rb7-/+ Nc6 (better 18...Nd7!? 19.f3 f5 20.ef5 Nf5-/+) 19.Rg7= Bb6 (19...Bc2 20.f3=) 20.Rb7+= Bc5 21.Nf3 (21.Bb4 Nf7 22.Bc5 dc5+=) 21...Ng4 (better 21...Nd8!? 22.Rc7 Bc2=) 22.d4+/- Ba3 (22...ed4!? 23.Nd4 Nd4 24.Bd4 Bd4 25.Rb8 Kf7 26.Rh8 Kg7+/-) 23.d5 Nd8 24.Ra7 Rg8?? (better 24...Nf2 25.Ra4 Nh1 26.Ra3 0-0+-) 25.Ra4 (25.Ra4 Bc5 26.0-0+-) 1-0. Lisyonok - roby7, Rated Classical game, lichess.org.

5.Bb5 Nc6 6.Bc6 (6.Nc3!?+= Bc5 (6...Nd4 7.Bc4 Qc7 8.Bg8 Rg8 9.Rc1 Kd8 10.Nf3 Nf3+=; 6...a6 7.Bc4 Nge7 8.Qh5 g6 9.Qf3 Bg7 10.Nge2 b5+=) 7.Nd5 (7.Qg4 g6 8.Nd5 Nce7 9.Ne7 Ne7 10.Qe2 a6=; 7.Rb1 a6 8.Bc4 Nge7 9.Nf3 b5 10.Bb3 b4=; 7.Nh3 Nd4 8.Na4 Nb5 9.Nc5 d5 10.Qe2 Qb6+=; 7.Na4 Be7 8.Bc4 d6 9.Nc3 f5 10.Bg8 Rg8=) 7...a6 8.Bc4 d6 9.Nf3 Nge7 10.Ne7 Qe7=; 6.Nf3 A) 6...Nge7 7.0-0 (7.c4 Qb6 8.Bc3 Ng6 9.0-0 a6 10.Ba4 Bc5=) 7...a6 8.Bc4 d5 9.ed5 Nd5 10.d4 Nb6=; B) 6...a6 7.Ba4 (7.Be2 Qb6 8.Bc1 Nge7 9.Nc3 Qa5 10.0-0 d5=; 7.Bc4 b5 8.Bb3 Bb7 9.Nc3 Bc5 10.0-0 Nge7=) 7...Nge7 8.c4 Qa5 9.Nc3 Qc5 10.d3 b6+=; C) 6...Bc5 7.0-0 Nge7 8.Nc3 a6 9.Bc4 b5 10.Bb3 Bb7=) 6...dc6 (6...bc6 7.d4+= (7.Ba3 d6 8.Nf3 Rb8 9.0-0 Qa5 10.Bc1 d5+=; 7.Nc3 d5 8.Nf3 d4 9.Na4 Be6 10.c3 d3+=; 7.Qe2 d5 8.d4 Qb6 9.c3 Ba6 10.Qd2 de4-/+) 7...Rb8 8.Bc3 d5 9.de5 de4 10.Qh5 g6=) 7.Nf3 (7.Ne2 Bd6+= (7...Qb6 8.Bc1 Bc5 9.0-0 Bg4 10.Nbc3 Qc7=) 8.Nbc3 Ne7 9.0-0 0-0 10.Rb1 b5+=) 7...Bg4 (7...Qb6 8.Bc1 Bc5 9.0-0 Bg4 10.h3 Be6+=) 8.0-0 (8.h3 Be6 9.0-0 Qb6 10.Qc1 Rd8+=) 8...Bf3 (8...Bc5!?+= 9.d3 Ne7 10.h3 Be6+=) 9.Qf3+= Nh6 (9...Bc5 10.d3 Ne7=) 10.d3 Bc5 11.Nd2 Bd4 12.c3 Bb6 13.Ba3 Qd3?? (better is 13...Qd7 14.Nc4 Bc7+/-) 1–0. pinecrest1981 – yummy, Caissa's Web, 2004.

4.b5 Qb6

5.Nc3 d6 6.Bc4 Nh6 7.a4 Bg4 8.Nge2 Be2 (8...Be7!?+=) 9.Qe2+/- g6 10.0-0 a6 11.a5 Qd8 12.ba6 (12.b6 Nd7+/-) 12...Na6 13.d4 ed4 14.Na4 (14.Na4 Qa5 15.Bd4+/-) 1–0. Schulz,Hans_Juergen (1750) – Valica,Slavo (1630), b2–b4.com, 2005.

5.d4 d6 6.a4 ed4 7.Bd4 c5 8.Bb2 Nh6 9.a5 Qc7 10.Nc3 Be6 11.Nge2 Bc4 12.Nf4 Bf1 13.Ncd5 Qf7 14.Rf1 f5?? (better is 14...Kd8+- A) 15.f3 f5 (15...Be7 16.Kf2 Re8 17.Kg1 Kc8 18.Qd2 Bd8 19.Qc3+-; 15...Nd7 16.b6 a6 17.Qd2 Kc8 18.0-0-0 Ne5 19.Be5+-; 15...a6 16.c4 Nd7 17.Kf2 Ne5 18.Qc2 f5 19.Be5+-) 16.Kf2 Kc8 17.Kg1 Nd7 18.b6 a6 19.Nc7+-; B) 15.Qd3 Nd7 (15...Rg8 16.Qh3 Nd7 17.a6 b6 18.Ne6 Kc8 19.0-0-0+-; 15...f5 16.f3 Nd7 17.a6 ba6 18.Ra6 Nb8 19.Ra4+-) 16.a6 b6 17.0-0-0 Kc8 18.Rfe1 g5 19.Nh3+-) 15.Ne6!! Qg6 (15...Qe6 16.Nc7) 16.Ndc7 Kd7 17.Nf8 (17.Na8?! Qe6 18.Ra4 fe4+-) 17...Rf8 18.Na8 Qg2 19.Qd5 Qe4 20.Qe4 Re8 (20...fe4 21.Bg7 Rf4 22.Bh6 Rh4+-) 21.Qe8 Ke8 22.Bg7 Ng4 23.Rg1 Kd8 (23...Nh2 24.Ra3 Kf7 25.Bh8+-) 24.h3 Nh2 25.0-0-0 Kd7 26.Be5 Nf3 27.Rd6 Ke7 28.Rg7 Ke8 29.Nc7 1–0. pcmvr – ozzy, ChessWorld.net, 2002.

4.b5 Be7

5.Nc3 cb5 (5...a6 6.a4 (6.bc6 dc6 7.Bc4= b5 8.Bg8 Rg8 9.Qh5 g6=) 6...ab5 7.ab5 Ra1 8.Qa1 Bc5 9.Qa8 Qc7+=; 5...Bb4 6.Rb1 (6.Qh5 g6 7.Qf3 a6 8.a4 d6 9.Bc4 f5=; 6.Qg4 g6 7.Qf3 a6 8.a4 d6 9.Bc4 f5=; 6.a3 Bc3 7.Bc3 d5 8.d4 ed4 9.Qd4 Qe7=; 6.bc6 dc6 7.Bc4 Ne7 8.Qh5 g6 9.Qh4 b5=) 6...a6 7.bc6 dc6 8.Bc4 b5 9.Bg8 Rg8+=; 5...d5 6.bc6 d4 7.cb7 Bb7 8.Nd5 Bd5 9.ed5 Qd5=; 5...Bc5 6.Nf3 (6.Bc4 Ne7 7.Qh5 g6 8.Qf3 Rf8 9.Nge2 f5=; 6.Qh5 g6 7.Qf3 a6 8.a4 ab5 9.ab5 Ra1=; 6.Qg4 g6 7.Qf3 a6 8.a4 ab5 9.ab5 Ra1=; 6.Rb1 a6 7.ba6 b5 8.a4 b4 9.Nce2 d5=; 6.Qf3 a6 7.a4 d6 8.Bc4 ab5 9.ab5 Ra1=) 6...a6 7.d4 ed4 8.Nd4 Qb6 9.Na4 Qa5+=) 6.Bb5+= Nh6 (6...Nc6 7.Nf3+= a6 8.Be2 f5 9.ef5 d5=) 7.Nf3 (7.Qh5 Nf7 8.Nf3 g6 9.Qh4 f5+=) 7...Nf7 8.Nh4 (8.d4 Nc6 9.0-0 a6+=) 8...Nc6 (8...a6 9.Bc4+= Bc5+=) 9.Nf5 Bf8 10.Rb1 (10.0-0 g6 11.Ne3 Bc5+/-) 10...Ne7 (10...g6 11.Ne3+=) 11.Ne3 a6 12.Bc4 b5 13.Bf7 (13.Bb3 b4 14.Ncd5 Bb7+=) 13...Kf7 14.0-0 d6 (14...b4 15.Ncd5 Nd5 16.Nd5+=) 15.Qh5 (15.f4 Qb6+/-) 15...g6+= 16.Qh4 Bg7 17.f4 ef4 (17...Be6 18.f5 Bd7 19.fg6 hg6 20.Qg3+=) 18.Qf4+/- Rf8 (18...f5 19.ef5 Nf5 20.g4+- (20.Nf5?! gf5 21.Ne4 Qb6 22.Kh1 Rd8+-)) 19.Ba3 g5 (19...Ke6 20.Qg4 Kf7 21.Qg3+/-) 20.Qd6 (20.Qg5 f5+-) 20...Qd6 21.Bd6 Re8 (21...Ra7 22.Ncd5 Nd5 23.Nd5+/-) 22.d4 (22.Be7 Re7 23.Ned5 Rea7+-) 22...Kg6 23.a4 (23.Rbd1+-) 23...Bd7? (23...f5!? 24.e5 Nc6+-) 24.ab5 (24.Be7 Re7 25.Ned5 Rf7 26.ab5 ab5 27.Nb5 f5+-) 24...ab5 25.Ra1 (25.Be7 Re7 26.Ned5 Rf7 27.Nb5 f5+-) 25...Ra1 26.Ra1 Nc8 (26...f5!? 27.e5 Nc8+-) 27.Bc5+- Bf8 (27...g4 28.Ned5 Bc6 29.Nc7 Re4 30.Ne4 Be4 31.d5+- (worse is 31.Nb5 Bc2 32.d5 Bh6+-)) 28.Bf8 Rf8 29.Ra6 Kg7 30.Ned5 h6 (30...Rf7 31.Kf2+-) 31.Nc7 Kg6 (31...Rf7 32.N3b5 Re7 33.Nc3+-) 32.N3b5 (32.N3b5 Ne7 33.c4+-) 1–0. Ziolkowski – Mennie,Alec Norman, corr 3GMM–47, 1996.

5.d4 ed4 6.Qd4 (6.Bd4 d5 7.ed5 Qd5 8.Nc3 Qe6 9.Nge2 Bb4=; 6.Qg4 g6 7.Bd4 cb5 8.Qd1 Nc6 9.Be3 Qa5=) 6...a6 7.bc6 Nc6 8.Qd1 b5 9.c4 b4=.

4.Be5 Ne7

5.Bb2 d6 6.Nf3 d5 7.Bd3 (7.Nc3 Ng6 8.a3 Nf4 9.ed5 Qe7 10.Ne2+/-; 7.e5 Nd7 8.Bd3 Ng6 9.Bg6 hg6 10.a3+/-) 7...Ng6 8.a3 Nf4 9.0-0 de4 10.Be4 +/-.

5.Bb2 d6 6.Nf3 Be6 7.Nc3 (7.a3 a5 8.b5 d5 9.e5 fe5 10.Ne5+/-; 7.Be2 d5 8.e5 fe5 9.Ne5 Qd6 10.a3+/-; 7.Bd3 Nd7 8.Nd4 Bf7 9.0-0 Qb6 10.Bc3+/-; 7.Nd4 Bf7 8.a3 a5 9.b5 d5 10.ed5+/-) 7...Qb6 8.a3 Ng6 9.d4 d5 10.Bd3 +/-.

5.Bb2 d6 6.Nf3 Bg4 7.d4 (7.Be2 d5 8.Nd4 Bd7+/- 9.Bh5 g6 10.Bf3+/-; 7.Nc3 d5 8.h3 Bh5 9.a3 de4 10.Ne4+/-; 7.h3 Bh5 8.Nc3 d5 9.a3 de4 10.Ne4+/-; 7.a3 d5 8.h3 Bh5 9.Nc3 de4 10.Ne4+/-; 7.Bd3 Qb6 8.a3 Nd7 9.Nc3 a5 10.b5+/-) 7...Nd7 (7...d5 8.h3 Bh5 9.Qe2+/- de4 10.Qe4+/-) 8.Be2 (8.h3 Bh5 9.Bd3 d5 10.0-0+/-) 8...Qc7 (8...d5 9.Nfd2 Be2 10.Qe2 (worse is 10.Ke2 f5+=) 10...de4 11.Ne4+/-) 9.0-0 d5 10.Nbd2 (10.Nc3+/-) 10...0-0-0 11.e5 f5? (better is 11...Ng6 12.b5 cb5+/-) 12.Ng5+- Be2 13.Qe2 Re8 14.Nf7 Ng6 15.Nh8 Nh8 16.a3 b6 (16...Nb6 17.c4+-) 17.c4 c5 (17...Qd6 18.Rac1 (18.ed6?! Re2 19.Bc3 Bd6+-) 18...Kd8 19.Qf3+- (19.ed6?! Re2 20.cd5 cd5+-)) 18.cd5 g5 (18...Kd8 19.Qh5 cd4 20.d6 Bd6 21.Rac1+-) 19.dc5 bc5 20.e6 Ng6 21.ed7 Kd7 (21...Qd7 22.Qa6 Qb7 23.Qd3+-) 22.Qb5 Kd8 23.Bf6 Be7 24.Rfe1 (24.Rfe1 Qb6 25.Qb6 ab6 26.Re7 Ne7 27.d6+-) 1–0. Trokenheim,Marek – Gronowski, corr, 1986.

5.Bb2 d6 6.Nf3 Ng6 7.a3 (7.Nc3 d5 8.a3 Nf4 9.Ne2 Bd6 10.Nf4+/-; 7.b5 d5 8.ed5 Nf4 9.Bd4 Qe7 10.Be3+/-; 7.Bc4 d5 8.ed5 cd5 9.Bb5 Nc6 10.a3+/-; 7.Qe2 Be7 8.Qe3 0-0 9.Nc3 d5 10.b5+/-) 7...d5 8.ed5 Qd5 9.Be2 Bd6 10.Nc3+/-.

4.a3 a5

5.ba5 Qa5 6.Nf3 Qb6 7.Bc3 (7.Ra2 d5 8.ed5 cd5=) 7...d5 8.Ne5? (better 8.ed5 cd5 9.d4=+) 8...fe5-+ 9.Qh5 Kd8 10.Qe5 (10.ed5 Nf6 11.Qg5 cd5 12.Be5 Nbd7 13.Bf6 Nf6-+) 10...Nf6 11.ed5 Nd5 (11...Bc5 12.Qg3 cd5 13.d4 Re8 14.Be2 Bd4 15.Bd4 Qd4 16.Nc3-+) 12.Bd4-/+ Qc7 13.Qc7 Kc7 14.Bc4 Be6 15.0-0 Nf4 16.Be6 (16.Be5 Bd6 17.Bf4 Bc4 18.Bd6 Kd6-+) 16...Ne2 (16...Ne6?! 17.Be5 Bd6 18.Bd6 Kd6 19.Re1-+) 17.Kh1 Nd4 18.Bc4 (18.Bb3 Nd7-+) 18...Nc2 19.Ra2 Na3 20.Bb3 (20.d4 b5 (worse 20...Nc4 21.Ra8 Bb4 22.Rc1-+) 21.Be6 Bd6-+) 20...Ra6 (20...Nb1!? 21.Rb1 Ra2 22.Ba2-+) 21.Nc3 Nb5 (21...Bc5!? 22.Ne4 Bd4 23.Ng5-+) 22.Nb5 cb5 23.Rc2 Rc6 (23...Nc6 24.d4 Kb6 25.Rd2-+) 24.Rfc1 Bb4 25.d4 Rc2 (25...Kd6 26.Rd1-+) 26.Rc2 (26.Bc2 Bd2 27.Rd1 Bc3-+) 26...Kb6 (26...Kd6 27.Re2-+) 27.d5 Re8 28.g3 Re1 (28...Na6 29.Rb2-+) 29.Kg2 Re5 30.f4 Re3 31.Ba2 Rc3 32.Rb2 Bc5 (32...Bd6 33.Bb1-+) 33.Kh3 (33.Bb1-+) 33...Rc2 (better 33...Nd7-+) 34.Rc2+- Bd6 (34...Nd7 35.Kg4+-) 35.Kg4 (35.Rc8 Nd7+-) 35…b4. SimIG (1675) - mahan13 (1605), Rated Blitz tournament, lichess.org, 2014.

5.b5 c5 6.Bc4 Ne7 7.Qh5 g6 8.Qf3 h5? (better is 8...Qb6+/- A) 9.Nc3 Bg7 (9...Ra7 10.Nge2 Bh6 11.Qd3 d6 12.0-0 Bg4 13.Na4+/-; 9...a4 10.Nge2 Bh6 11.Qd3 d6 12.0-0 Nd7 13.Rae1+/-) 10.Nge2 d6 11.d3 f5 12.Na4 Qd8 13.0-0+=; B) 9.Nh3 Bg7 10.Nc3 d6 11.0-0 h5 12.Qg3 h4 13.Qf3+/-; C) 9.Ra2 Bg7 (9...a4 10.Ne2 Bh6 11.0-0 Bg5 12.Qg3 d5 13.ed5+/-; 9...Bh6 10.Ne2 Bg5 11.0-0 d6 12.Nbc3 Nd7 13.Qd3+/-; 9...Ra7 10.Ne2 Bh6 11.0-0 Bg5 12.Qg3 Qd6 13.f4+/- 1.31; 9...Qd6 10.Ne2 b6 11.0-0 Bb7 12.Qe3 Bg7 13.f4+/-) 10.Ne2 d6 11.Nbc3 f5 12.0-0 Rf8 13.Qd3+=; D) 9.Ne2 a4 (9...Bh6 10.0-0 a4 11.Qd3 d6 12.Nbc3 Nd7 13.Rae1+/-; 9...Bg7 10.Nbc3 d6 11.0-0 f5 12.Qd3 Rf8 13.Rae1+/-; 9...Ra7 10.0-0 Bh6 11.Qd3 d5 12.ed5 Bf5 13.Qc3+/-) 10.0-0 Bh6 11.Qd3 d5 12.ed5 Bf5 13.Qc3+/-) 9.Qf6+- Rh7 10.Nf3 (10.Be5?! d5 11.Bb8 Bg7+/-) 10...d5 11.Bd5 Nd5 (11...Nd7 12.Qd6 Qb6 13.Qb6 Nb6+-) 12.Qg6 Rf7 13.Ne5 Qe7 (13...Qf6 14.Qf7 Qf7 15.Nf7 Kf7 16.ed5+-) 14.ed5 Bf5 (14...Nd7 15.Qf7 Qf7 16.Nf7 Kf7 17.Nc3+-) 15.Qh5 Bg6 (15...Bc2 16.h4 Nd7 17.Qf7 Qf7 18.Nf7 Kf7+-) 16.Qg6 Nd7 17.Qf7 Qf7 18.Nf7 Kf7 19.f4 (19.d3!? Re8 20.Kd1 Bd6+-) 19...Re8 20.Kf2 Nf6 (20...Nb6 21.Nc3+-) 21.Bf6 Kf6 22.Nc3 Bg7 23.h4 Kf5 24.Rae1 (24.Kf3 Bc3 25.g4 Kf6 26.dc3 a4+-) 24...Re1 1–0. lskr (1950) – suri5, internet, 2007.

5.b5 Ne7 6.d4 ed4 (6...d6 7.Nd2 (7.de5 fe5 8.Nc3 Be6 9.Nf3 Ng6 10.Bc1 Be7=; 7.Nf3 ed4 8.Bd4 d5 9.Bd3 de4 10.Be4 cb5+=; 7.Qh5 g6 8.Qh4 Bg7 9.Nf3 0-0 10.Be2 ed4=; 7.Be2 ed4 8.Bd4 d5 9.ed5 Nd5 10.Nf3 Qd7+=) 7...Be6 8.Ngf3 Ng6 9.Be2 Be7 10.0-0 0-0+=) 7.Qd4 (7.Qh5 Ng6 8.Bd4 d5 9.ed5 Qd5 10.Qd5 cd5+=) 7...d5 8.Nc3 (8.Nd2 Be6 9.Ne2 Nd7 10.Nf4 Bf7+=) 8...Be6 9.Nge2 c5 10.Qd2 (10.Qc5? Nf5 11.ef5 Bc5 12.fe6 Qd6–+) 10...d4 11.Nf4 Bf7 12.Nce2 g5 13.Nh3 Nd7 14.c3 d3 15.Qd3 Ne5 16.Qd8 Rd8 17.Ng3 Bh6 18.Bc1 Bg7 19.Be3 b6 20.f4 Nd3 21.Bd3 Rd3 22.Bd2 0-0 23.fg5 fg5 24.Ng5 (24.Bg5? Bc3 25.Kf2 Bc4 26.Nf4 Bd4 27.Ke1 Rf4 28.Bf4 Ba1–+) 24...Bb3 (24...Bc4 25.Ne2+=) 25.Rc1 Bc4 26.Rf1 Rfd8 27.Rf2 Ng6 28.Nf3 a4 29.h4 (29.h3!?+/-) 29...Nh4+= 30.Nh4 Rg3 31.Nf5 Rgd3 32.Ng7 Kg7 33.e5 Re8 (worse is 33...Bb5 34.Rb1 Bc4 35.Rb6+/-) 34.Bf4 h5 35.Rf1 (35.Rd2 Rd2 36.Kd2 Rd8 37.Kc2 Bd3 38.Kb2 Bb5=) 35...Kg6 36.g3 Bb5 37.Kf2 Bc6 38.Rfd1 Red8 39.Rd3 Rd3 40.Rb1 b5 (40...Rc3 41.Rb6 Ra3 42.Rc6 Kf5 43.Rf6 Kg4 44.e6 Ra2 45.Kf1 Ra1 46.Ke2 Ra2 47.Bd2+-) 41.c4 Rf3 (41...bc4 42.Rb6 Ra3 43.Rc6 Kf5 44.Rf6 Kg4 45.e6 Ra2 46.Ke1 Ra1 47.Ke2 Ra2 48.Kd1+-) 42.Ke2 Rb3 (42...bc4? 43.Rb6 Ra3 44.Rc6 Kf7 45.Rc5 Ra2 46.Ke3+-) 43.Rb3 ab3 44.Bc1 bc4 45.Kd2 Kf5 46.Kc3 Kg4 (46...Ke5?! 47.Kc4 Ke4 48.Bb2-/+) 47.Be3? (47.e6 Kg3 48.Be3 h4 49.Bc5 h3 50.Bd6 Kg4–+) 47...Kg3 (47...Bd5!? 48.Bf2 Kf3 49.Bc5 Kg3 50.e6 Be6 51.Bd6 Kg4 52.a4–+) 48.e6 h4 49.Bc5 (49.e7 h3 50.Bc5 Kf4–+) 49...h3 50.Bd6 Kg2 51.Be5 h2 52.Bh2 Kh2 53.e7 Kg3 0–1. orane (2205) – Hawk, Live Game Caissa's Web, 2004.

5.ba5 Ra5

6.d4 ed4 7.Bd4 d5 8.Bc3 Ra4 9.ed5 Qd5 10.Qd5 cd5 11.Bb5 Bd7 12.Ba4 Ba4 13.Ra2 +/-.

6.d4 ed4 7.Bd4 d5 8.Bc3 Ra4 9.ed5 Re4 10.Be2 Qd5 11.Bd2 Kf7 12.Nc3 Re2 13.Nce2?! Qg2 14.Ng3 Nd7=.

5.b5 Bc5

6.c3 d5 7.d4 Bd6 8.ed5 cd5 9.de5 Be5 10.Nf3 Nh6 11.Bd3 Bf5 12.Ne5 fe5 13.Qh5 g6 14.Qh6 Bd3+=.

5.b5 d5

6.ed5 Qd5

7.Nc3 Qe6

8.Nf3 Ne7 9.Be2 e4 10.Nd4 Qe5 11.Nb3 a4 12.Na4!? Qg5 13.Nb6 Qg2 14.Rf1 +/-.

8.Nf3 Ne7 9.Be2 e4 10.Nd4 Qe5 11.Nb3 Ng6 12.0-0 Bd6 13.g3+=.

5.c3 ab4

6.ab4 Ra1 7.Ba1 b6 8.d4 d6 9.de5 fe5 10.Qh5 g6 11.Qf3 Bg7 12.Bc4 Nf6 13.Nh3 d5 14.ed5 cd5 15.Bb3 0-0 16.0-0 Kh8 17.c4 e4 18.Qc3 Ba6 19.Nd2 Qd6 20.cd5 Bf1 21.Kf1 Ng4 22.Qg7 1-0. dimm209 (1630) - Teegii (1750), Rated Blitz game, lichess.org.

6.cb4 b5 (6...d5 7.ed5 Qd5 8.Nc3=) 7.Ne2 (7.d4 ed4 8.Bd4 d5+=) 7...d5= 8.f3 (8.ed5!? Qd5 9.d4=) 8...d4=+ 9.Ng3 c5 (better 9...Bd6!?=+) 10.Bb5+/- Bd7 11.Bc4 cb4 12.ab4 Nc6 (12...Ra1 13.Ba1 Nh6 14.f4=) 13.Bg8 (13.Ra8!? Qa8 14.Qb3+/-) 13...Ra1+= 14.Ba1 Rg8 15.0-0 Bb4 16.d3 Kf7 17.f4 Qa5 18.Bb2 Qa2 (18...ef4 19.Ne2 f3-/+) 19.Qc2?? (better 19.Rf2!? ef4 20.Ba3=) 19...Rc8 (19...Rb8!? 20.Rf2-+) 20.Qe2 Na5?? (better 20...ef4 21.Ba3 Be6 22.Bb4 Nb4 23.Qa2 Ba2-+) 21.Rf2?? (better 21.fe5 Bc5 22.ef6+-) 21...Nb3 (21...Qb1!? 22.Rf1 Qc2 23.fe5 Qe2 24.Ne2-+) 22.Na3?? (better 22.Qf1 ef4 23.Nf5=+) 22...Ba3 (better 22...ef4!? 23.Qh5 Kf8 24.Nf1 Ba3 25.Bd4-+) 23.Ba3 Qa3 24.f5?? (better 24.fe5 Qc1 25.Nf1-+) 24...Rc1 25.Nf1 Bb5 26.Qh5 Kg8 27.h3 Rc3 (27...Nc5 28.Kh2 Nd3 29.Qf3-+) 28.Qe2 (28.Ng3 Nc5 29.Qg4 Nd3-+) 28...Nc1 (28...Bd3 29.Qh5-+) 29.Qd2 (29.Qg4 Nd3 30.Rf3 Qb2-+) 29...Nd3 30.Re2 (30.Qa2 Qa2 31.Ra2 Bc6-+) 30...Nf4 (better 30...Rc1 31.Qa2 Qa2 32.Ra2 Rf1 33.Kh2-+) 31.Qa2 (31.Re1 Bd3 32.Qf2 Rc2-+) 31...Qa2 (better 31...Bc4 32.Qa3 Ne2 33.Kf2 Ra3 34.Nd2-+) 32.Ra2 Bf1 (better 32...Rc1 33.Rf2-+) 33.Ra8 Kf7 34.Kf1 Rc7 (34...Rc1 35.Kf2-+) 35.Kg1 Ne2 36.Kh2 (36.Kf2 Nc3 37.Rd8 Ne4 38.Kf3 Nc3-+) 36...Nc3 (36...Rd7 37.Ra1-+) 37.Ra1 (37.Rd8 Ne4 38.Kg1 Ke7-+) 37...Ne4 (better 37...d3 38.Kg3-+) 38.Rf1 (38.Rd1 Nc3 39.Rd2 Re7-+) 38...Nd6 (better 38...d3 39.Ra1-+) 39.h4 (39.g4 Rc2 40.Kg1 e4-+) 39...Rc3 (39...h5!? 40.Rf2-+) 40.h5 (40.h5 d3 41.Rf2-+). Mustanglx – Keltor, Rated Bullet game, lichess.org, 2020.

5.Bc4 ab4

6.ab4 Ra1 7.Ba1 Bb4 8.Bg8 Rg8 9.Bc3 Bc3 10.Qh5 Kf8 11.Nc3=.

5.Bc4 d5

6.ed5 cd5 7.Bb5 Nc6 8.Ba4 ab4 9.ab4 Bf5 10.b5 Nb4 11.d3-/+.

5.d4 ab4

6.de5 ba3 7.Ba3 Ra3 8.Na3 Qa5 9.Ke2 Qe5 -/+ (< 9...Ba3 10.Qd3+=).

6.de5 ba3 7.Na3 Ba3 8.Ba3 Qa5 9.Qd2 Qe5=+.

6.de5 ba3 7.Na3 Ba3 8.Ba3 Qa5 9.Ke2 Qe5-/+.

6.de5 ba3 7.Nf3 Ra4 8.Na3 Qa5 9.Nd2 Ba3 10.Ra3 Ra3 11.Ba3 Qa3–+.

5.d4 ed4

6.Qd4 Qe7=.

5.Be5?? fe5–+

6.Qh5 Ke7 7.Qe5 Kf7 8.Bc4 d5 9.ed5 Bd6 10.dc6 Kf8 11.Qe4 Nc6 12.b5–+.

6.Qh5 Ke7 7.Qe5 Kf7 8.Bc4 d5 9.ed5 Kg6 10.Ne2 Qe7 11.Qg3 Kh6 12.ba5 cd5 13.Bd5 Nc6=+.

4.a3 Qb6

5.Bc4 a5 6.Bg8 Rg8 7.Qh5 Ke7 8.Qh7 Kf7 9.h4 ab4 10.h5 ba3 11.Ba3 Qd4 12.Qg6 Ke6 13.Bf8 Qa1 14.Qe8 1-0. carlosbarrera - vitebo (1610), Rated Blitz tournament, lichess.org. (=1.a3 e5 2.b4 c6 3.Bb2 f6 4.e4)

5.Bc4 Ne7 6.Nf3 d5 7.ed5 cd5 8.Bb3 Be6 9.0-0 Nbc6 10.d3 Ng6 11.Nbd2 Be7 12.c4 dc4 13.dc4 Qc7 14.c5 Bb3 15.Qb3 0-0-0 16.Nc4 Nf4 17.b5 Nd4 18.Nd4 Rd4 19.Bd4 ed4 20.b6 Qc5 21.ba7 Qa7 22.Nb6 Kb8 23.h3 Bd8 24.Nd7 Ka8 25.Rab1 Re8 26.a4 Re7 27.Nc5 Qc5 28.Rfc1 Ne2 29.Kf1 Nc1 0–1. Abdullaevich (1665) – zygc, lichess.org, 2015.

5.d4 d6 6.Nf3 Nd7 (6...c5 7.c3+=) 7.Nbd2 Ne7? (better is 7...a6+= 8.Rb1 (8.Be2 Be7 9.0-0 Nh6 10.Nc4 Qc7 11.Ne3 0-0+/-; 8.Bd3 Be7 9.0-0 Nh6 10.Nc4 Qc7 11.Ne3 0-0+/-; 8.Ra2 Nh6 9.Bd3 Be7 10.0-0 0-0 11.Bc4 Nf7+/-) 8...Qc7 9.Be2 d5 10.c4 de4 11.Ne4 f5+/-; 7...Be7 8.Bd3 (8.Be2 Nh6 9.0-0 0-0 10.Bc4 Nf7 11.Be6 c5+=; 8.Rb1 Qc7 9.b5 c5 10.c3 Nh6 11.Qb3 Nb6+=) 8...Nh6 9.0-0 0-0 10.Qe2 Nf7 11.Rfd1 Qc7+=; 7...Nh6 8.Bc4 (8.Be2 Be7 9.0-0 0-0 10.Bc4 Nf7 11.Be6 c5+=; 8.Rb1 Be7 9.Bc4 a5 10.b5 cb5 11.Ba1 b4+=; 8.Bd3 Be7 9.0-0 0-0 10.Qe2 Nf7 11.Rfd1 Qc7+=) 8...c5 9.c3 ed4 10.cd4 cb4 11.0-0 Be7+/-; 7...c5 8.Nc4 (8.c3 ed4 9.cd4 cb4 10.Bc4 Ne7 11.ab4 d5+=) 8...Qc6 9.d5 Qa4 10.Bc1 Nb6 11.Rb1 Nc4+/-; 7...Qc7 8.Be2 (8.Bd3 Ne7 9.0-0 Ng6 10.c4 Nf4 11.Bc2 Be7+=; 8.Bc4 Ne7 9.0-0 Ng6 10.Bb3 Nf4 11.Bc1 a5+=) 8...d5 9.c4 de4 10.Ne4 f5 11.Neg5 e4+/-) 8.Nc4+- Qc7 9.de5 fe5 (9...Ng6 10.Nd6 Bd6 11.Qd6 Qd6 12.ed6 Kd8+-) 10.Nd6 Kd8 (10...Qd6 11.Qd6 Ng6 12.Qe6 Be7 13.Ng5+-) 11.Ng5 Qb6 (11...Nd5 12.Ne6 Ke7 13.Nc7 Nc7+-) 12.Ne6 1–0. market (2090) – il_conte, GameColony.com, 2002.

5.Qf3 c5 (5...a5 6.Bc4=) 6.c3 a6 (6...cb4 7.ab4 a5 8.Bc4+=) 7.Qd3 (7.Bc4 a5+=) 7...Bd6 (7...d6 8.Qf3=) 8.b5 (8.Be2 Qc6+=) 8...Ne7 9.c4 ab5 10.cb5 Ra4 (10...Bc7=) 11.Qb3 (better 11.Nc3 Ra7 12.Qg3+=) 11...Re4=+ 12.Be2 Nbc6 (better 12...Rh4!?=+) 13.Qd3+= f5? (13...Re2 14.Ne2 (worse 14.Ke2 e4 15.Qb3 Be5 16.Be5 fe5-/+; 14.Qe2?! Bc7=) 14...Bb8 15.Nbc3+=) 14.Qd6+- Qb5 15.Bc3 (better 15.Ra2 Qb6 16.Qd3+-) 15...h5?? (better 15...Nd4 16.Bd4 ed4=) 16.f3+- Rh6 17.fe4 c4?? (17...Qe2 18.Ne2 Rd6 19.ef5 Nf5+-) 18.a4 (18.Qc7 Nd4 19.Bd4 ed4 20.Qc4 Qb2+-) 18...Qa6 (18...Qb1 19.Rb1 Rd6 20.Bh5 g6+-) 19.Qc5 (19.Qc7 fe4 20.Na3 d5+-) 19...b6 (19...d6 20.Qb5+-) 20.Qb5 (better 20.Qe3 f4 21.Qf3 d6+-) 20...Qb7 (20...Qb5 21.ab5 Nd4 22.Ra8 fe4 23.Bc4+-) 21.Bf3 (21.ef5 Nf5 22.Be5 Re6+-) 21...f4 (21...fe4 22.Be4 Na7 23.Bb7 Nb5 24.Bc8 Nc3 25.Bd7 Kd7 26.Nc3+-) 22.Be5 Re6 (22...Ne5 23.Qe5 h4 24.Qg7+-) 23.Bg7 d5 (23...Ng6 24.Ne2 Kf7 25.Bb2+-) 24.e5 (better 24.Ne2 de4 25.Bh5 Kd8 26.Nf4 Rd6+-) 24...Kf7 25.Bd5 (better 25.Bh8 Ne5 26.Be5 Re5 27.Ne2+-) 25...Nd5 26.Nf3 (26.Qd5!? Kg7 27.Ne2 Ne5 28.Qb7 Bb7+-) 26...Kg7 27.Qd5 Qe7 (27...Ne5 28.Qd4 Qe4 29.Qe4 Nd3 30.Kf1 Re4 31.Nc3+-) 28.Qc4 (better 28.0-0!? Nb4 29.Qd4 Nc2 30.Qc4 Na1 31.Qc8 Qc5 32.Qc5 bc5+-) 28...Ne5 29.Qc3 (29.Qd4 Qf6 30.Kd1 Bb7+-) 29...Kg6 (29...Rc6 30.Qe5 Qe5 31.Ne5 Rc1 32.Ke2 Rh1+-) 30.0-0 Bb7 (30...Nf3 31.Qf3 (31.Rf3?! Re1 32.Rf1 Ba6 33.Qc6 Kf7+-) 31...Ba6 32.Nc3 Bf1 33.Rf1+-) 31.Qc2 (31.Nd4 Rf6 32.a5 Ba6+-) 31...Kh6 (31...Kg7 32.Nd4 Rg6+-) 32.Qf5 (better 32.Nd4 Qg5 33.Rf2+-) 32...Nf3+- 33.gf3 (33.Rf3 Bf3 34.Qf4 Kg6 35.Qg3 (35.Qf3?? Qc5 36.Qe3 Re3 37.de3 Qe3 38.Kf1 Qf4 39.Ke2 Qe5 40.Kd3 Qa1–+) 35...Kh7 36.Nc3 (36.Qf3?? Qc5 37.Qe3 Re3 38.de3 Qe3 39.Kf1 Qf4 40.Ke2 Qe5 41.Kd3 Qa1–+) 36...Bg2 37.Kg2=) 33...Qg7= 34.Kh1?? (better 34.Kf2 Qd4 35.Kg2 Re2 36.Kh3=) 34...Bf3!! 35.Rf3 A deflection 35...Re1 The nicest combinations are those leading to mate (35...Re1 36.Rf1 Rf1) 0–1. Delboy Smith (1640) – rockjimz (1755), ChessWorld.net, 2010.

4.a3 d5

5.Nc3 Be6 6.d4 White fights for the Initiative 6...de4 (6...a5 7.ed5 cd5 8.ba5=+) 7.Ne4 Nd7 8.Nf3 Qc7 9.de5 0-0-0 10.Qe2 fe5 (10...Bg4 11.ef6 Ngf6 12.Qe3=) 11.Neg5 Bd5? (better 11...Re8!?+-) 12.c4+- (12.Ne5?! Re8 13.f4 Bd6=+; 12.Be5?! Ne5 13.Qe5 Bd6=) 12...h6 (12...e4 13.Nd4 (13.Ne4?! Be4 14.Qe4 Ngf6+-) 13...Ne5 14.cd5 Nd3 15.Kd1 Nb2 16.Qb2 Rd5 17.Nge6+- (17.Ne4?! Qd7=+)) 13.cd5 hg5 14.dc6 bc6 15.Ng5 (15.Ne5 Re8 16.Qa6 Kb8=+; 15.Be5 Ne5 16.Qe5 Qe5 17.Ne5 Re8–+) 15...Qd6 (15...Re8+-) 16.Nf7 Qe6 (16...Qf6 17.Nh8 Bd6+-) 17.Qa6 (17.Qa6 Kb8 18.Nd8 Bb4 19.ab4+-) 1–0. Vendelo – Spazk, internet, 2020.

5.d3 de4 6.de4 Qd1 7.Kd1=+.

5.d3 h6 6.f3 (6.Qh5!? Ke7 7.d4+=) 6...Ne7 7.Nd2 Ng6 8.c3 Be7 9.Ne2 0-0 10.g3 Be6 11.Bg2 Bf7 (11...f5 12.ed5 Qd5 13.Qc2=+) 12.Qc2 Nd7 13.h3 Rc8 14.Qa4 a6 15.Qc2 c5 16.Nb3 (16.f4 cb4 17.ab4 d4=+) 16...d4 17.c4 (17.bc5!? Nc5 18.Nc5 Bc5 19.Qd2-/+) 17...cb4 18.a4 (18.Qd1-+) 18...a5 (better 18...b5 19.ab5 ab5-+) 19.0-0 Nc5 20.Bc1? (20.f4 Bd6-/+) 20...Qd7?? (20...Nd3!? 21.Qd3 Bc4 22.Qd1-+) 21.Na5? (21.f4!?-/+) 21...b6 (21...Ra8!? 22.Nb3 Nb3 23.Qb3-+) 22.Nb3 Na4 23.h4 (23.f4 b5 24.f5 Nh8-+) 23...Nc3 (23...b5!? 24.h5 Nh8 25.Qa2-+) 24.h5 (24.Kh2!?-/+) 24...Nh8-+ 25.Bb2 (25.Kh2 Ra8-+ (25...Bh5?! 26.Bh3 Qb7 27.Bc8 Rc8 28.Nc3 bc3 29.f4-/+)) 25...Bh5 26.Nc3 (26.Kh2 Ra8-+) 26...bc3 27.Bc1 f5 (27...Ra8!? 28.Rb1-+) 28.Bh3 g6 (28...Bg6 29.f4 Nf7 30.Ra6 ef4 31.Bf4-+) 29.Ra6 (29.Bh6 Rf7 30.Bc1 b5 31.cb5 Rb8-/+) 29...Qc7 (better 29...Nf7!?-+) 30.Bh6-/+ Ra8 (better 30...Rf7!? 31.g4 Rh7-/+) 31.Ra8= Ra8 32.Nc1?? (better 32.g4!? fg4 33.fg4=) 32...Re8 (32...Nf7!? 33.g4 Nh6 34.gh5 gh5 35.f4-+) 33.Ne2 fe4 34.fe4 Kh7?? (better 34...g5 35.Rf5 Nf7-+) 35.Bc1-/+ Bf6 0-1. alessandrocarvalhaes (1845) - iam_idiot (1880), lichess.org, 2019.

5.f4 d4 6.fe5+/- Qe7 (6...c5 7.ef6 Nf6 8.e5+/-) 7.Qh5 g6 8.ef6 Qe4 (8...Nf6 9.Qe2+/-) 9.Qe2 Qe2 10.Ne2 Nf6 11.Nd4 Bg7 12.Bc4 Kd8 13.0-0 b5 (13...Rf8 14.Nc3+-) 14.Be6 (14.Nc6 Nc6 15.Bb5 Bf5 16.Bc6 Rc8+-) 14...Re8 (14...Ne8 15.a4 ba4 16.Ra4+-) 15.Bc8 Kc8 16.Nc3 (16.Nb5 cb5 17.Bf6 Bf6 18.Rf6 a5+-) 16...Nbd7 (16...a5!?+/-) 17.Nc6+- Kc7? (17...a6 18.Rae1+-) 18.Nd4 (better 18.Na7!? Ra7 19.Nb5 Kb8 20.Na7 Ka7+-) 18...a6 19.Nb3 Nb6 (19...Kd6 20.Ra2+-) 20.d3 (20.Nb5 ab5 21.Bf6 Bf6 22.Rf6 Rad8+-) 20...Re7 (20...Nbd7 21.a4 Kb6 22.ab5 ab5 23.Ra5 Ra5 24.ba5 (worse 24.Na5 Bf8+-) 24...Ka6 25.Na2+-) 21.Bc1 (21.a4!? ba4 22.Na4 Nfd7+-) 21...Nfd5 22.Nd5 Nd5 23.Rb1 (23.Bg5 Ba1 24.Be7 Bb2+-) 23...Nc3 (23...Rae8 24.Bg5 Rd7 25.Rbe1 Re1 26.Re1+-) 24.Bf4 (24.Bg5 Nb1 25.Be7 Na3+-) 24...Kc6+/- 25.Rbe1 Rae8 26.Re7 Re7 27.Bd2 (better 27.Bg5 Rc7 28.Bf6+-) 27...Re2? (better 27...Kd5+-) 28.Rf7 Be5 (28...Bh8 29.Rf8 Rd2 30.Nd2 (30.Rh8?! Rd1 31.Kf2 Nb1+-) 30...Bd4 31.Kh1+-) 29.Rf8 (better 29.Kf1 Rd2 30.Nd2 Bh2+-) 29...Nb1 30.Bf4 Bf4 (30...Bc3 31.Rd8 Be5+-) 31.Nd4 (31.Rf4?! Kd6+-) 31...Kd5 32.Ne2 (32.Rf4?! Rd2 33.Nf3 Rc2 34.Rd4 Kc6+/-) 32...Be3 33.Kf1 Na3 34.c3 Nc2 (34...Bd2 35.Rd8 Ke5 36.Re8 Kd5 37.Rc8+-) 35.Rd8 Ke5 (35...Kc6 36.Rc8 Kd5 37.Ra8+-) 36.Ra8 1-0. pacal56 (2180) - mecker (2145), Rated Blitz game, lichess.org, 2014.

5.Nc3 d4

6.Na4 Nd7 7.f4 b5-/+ 8.Nc5 Nc5 9.bc5 Bc5 10.fe5 fe5?? (better 10...Qe7-/+) 11.Qh5+/- Kf8 12.Qe5 Bb6 (12...Qh4 13.g3 Qe7 14.Bd4 Bd4 15.Qd4+/-) 13.Nf3 c5 (better 13...Nf6!?+/-) 14.Bb5+- Qe7 15.Qf4 Qf7 16.Qg5 Ne7?? (16...Nf6 17.0-0 h6+-) 17.0-0 h6 18.Qg3 Kg8 19.Ng5! Qg6 (19...hg5 20.Rf7) 20.Bc4 (20.Bc4 Be6 21.Be6 Qe6 22.Ne6+-) 1-0. marekt - ctrotter (2550), net-chess.com, 2022.

6.Na4 Nd7 7.Nh3 b5 8.Nc5 Bc5 9.bc5 Nc5 10.Qh5 g6 11.Qh4-/+.

5.ed5 c5

6.Bb5 Bd7 7.Qh5 g6 8.Bd7 Qd7 +/-.

6.c4 b6 7.Bd3+/- Nh6 8.Nc3 Bg4 9.Qc2 Nd7 10.Bh7 Qe7? 11.Nb5+- Nf7 12.Nc7 Kd8 13.Na8 Bh5 14.Bf5 Nd6 15.Be6 g5 16.f3 Bf7 17.Bf7 Qf7 18.bc5 Nc5 19.d4 Ncb7 20.de5 fe5 21.Nh3 Rh3 22.gh3 Qf3 23.Rf1 Qe3 24.Qe2 Qe2 25.Ke2 Bg7 26.Rae1 Nc4 27.Rf7 (27.Rf7 Nbd6 28.Rg7 Nb2 29.Rf1+-) 1–0. kofti – michaelanthony, ChessWorld.net, 2005.

5.ed5 cd5

6.Bb5 Nc6 7.Nc3 d4 8.Ne4 a6 9.Ba4 b5 10.Bb3 Be6 11.Be6 f5 12.Bf5 g6 13.Bh3 Nf6 14.Nf6 Qf6 15.Qe2 Bd6 16.Qe4 d3 17.Qc6 Kf7 18.cd3 Ra7 19.Qd5 Kg7 20.Ne2 Rd8 21.Qe4 h5 22.Nc3 g5 23.Bf5 g4 24.Nd5 Qg5 25.0-0 Qd2 26.Bc3 Qg5 27.f4 Qh4 28.fe5 Bc7 29.e6 Kh6 30.Bd2 Kg7 31.e7 Re8 32.Bc3 Kf7 33.Qe6 1-0. ilex (1625) - pb1980, Rated Classical game, lichess.org.

6.Bb5 Bd7 7.Nc3 Bb5 8.Nb5 a5=.

6.Bb5 Bd7 7.Bd7 Nd7=.

6.Bb5 Bd7 7.Qe2 Bb5 8.Qb5 Qd7 9.Qe2 Bd6 10.f4 e4 (10...Ne7!?-/+) 11.Qh5 Qf7 12.Qf7 Kf7 13.Nc3 Ne7 14.Nge2 Nbc6 15.0-0 Rad8 16.Nb5 Bb8 17.Rac1 Nf5 18.Nbd4 Nfd4 19.Nd4 Rc8 20.g3 Nd4 21.Bd4 b5 22.Bc5 Rhd8 23.d3 a6 24.de4 de4 25.Rcd1 f5 26.Kf2 Ke6 27.Ke2 Bd6 28.Bd4? (better 28.Rd6 Rd6 29.Bd6 Kd6 30.Kd2=+) 28...Rc2-+ 29.Ke3 g6 30.Rc1 Rdc8 31.Rc2 Rc2 32.h3? (32.Rf2 Rf2 33.Kf2-+) 32...Rg2 33.g4 Rg3 34.Kf2 Bf4 35.gf5 gf5 36.Rd1 Rh3 37.Bc5 Ra3 38.Rd8 Ra2 39.Ke1 (39.Kf1 h6-+) 39...Bg3 40.Kd1 f4 41.Re8 Kd5 42.Rd8 Ke5 43.Rf8 (43.Re8 Kf5 44.Kc1 e3-+) 43...e3 44.Bb6 (44.Re8 Kf5 45.Be3 fe3 46.Re3 Rd2 47.Kd2-+) 44...e2 45.Kc1 e1Q 0-1. pacalmisu (2345) - AntoineBriet (2540), Rated Blitz game, lichess.org, 2016.

6.c4 a5 A) 7.cd5 ab4 8.ab4 Ra1 9.Ba1 Qd5 10.Nc3 Qd6 11.b5=; B) 7.ba5 Ne7 (7...Be6 8.cd5 Qd5 9.Nc3 Qa5 10.Bb5 Nc6 11.Nf3=) 8.d4 Nbc6 9.de5 fe5 10.cd5 Nd5 11.Nc3=; C) 7.c5 ab4 8.ab4 Ra1 9.Ba1 Nc6 10.Bb5 Bd7 11.Qb3=.

6.c4 cb4 7.ab4 b6 (7...Kf7 8.Bc3 Nh6 9.Nf3 Na6 10.b5 Nc7 11.d4+/-; 7...Nh6 8.Nc3 b6 9.Nf3 Kf7 10.b5 Bd6 11.Ne4+/-; 7...Be7 8.Nc3 Nd7 9.c5 Nc5 10.bc5 Bc5 11.Bb5+-; 7...Bf5 8.Nc3 b6 9.d6 Nc6 10.c5 bc5 11.bc5+/-; 7...Qd6 8.b5 Qb6 9.Nf3 Bg4 10.Be2 Nd7 11.d4+/-) 8.b5 a6 9.Qe2 Kf7 10.ba6 Ra6 11.d4 +/-.

6.c4 b6 7.Nc3 Nh6 (7...Bd6 8.Ne4 Nh6 9.bc5 bc5 10.Qh5 Nf7 11.Bd3+/-; 7...Nd7 8.Qa4 a6 9.Nf3 Rb8 10.Bd3 Nh6 11.0-0+/-; 7...Bf5 8.Nf3 Nh6 9.Qa4 Bd7 10.b5 Bd6 11.Be2+/-; 7...Bd7 8.bc5 Bc5 9.Ne4 Bf5 10.Bd3 Bf8 11.Nf3+/- 1.22; 7...Qd7 8.bc5 Bc5 9.Ne4 Na6 10.Nc5 Nc5 11.d4+/-) 8.Bd3 a6 9.bc5 Bc5 10.Nf3 Bf5 11.Bf5 +/-.

6.c4 b6 7.Bd3+/- Nh6 (7...Qd7 8.b5 Bd6 9.Qh5 Kd8 10.Ne2 a6 11.Nbc3+/-; 7...g6 8.Nf3 Nd7 9.b5 a6 10.ba6 Ra6 11.0-0+/-) 8.Nc3 (8.Qc2 g6+/- 9.Nf3 Nd7 10.b5 Nf7 11.0-0+/-) 8...Bg4 (8...a6 9.bc5 Bc5 10.Nf3+/- Bg4 11.0-0+/-) 9.Qc2 Nd7 (9...g6 10.Be4 a6 11.Nge2+/-) 10.Bh7 (better is 10.f3 cb4 11.ab4+- (worse is 11.fg4 bc3 12.Bc3 Rc8+/-)) 10...Qe7? (better is 10...cb4 11.ab4+/- (11.Bg6 Nf7 12.ab4 Bb4+/-)) 11.Nb5+- Nf7 (11...g5+-) 12.Nc7 Kd8 13.Na8 Bh5 (13...Nd6 14.h3 Bh5 15.Bd3+-) 14.Bf5 Nd6 (14...Nh6 15.Be6+-) 15.Be6 g5 16.f3 Bf7 17.Bf7 Qf7 18.bc5 Nc5 19.d4 Ncb7 (19...ed4 20.Bd4 Ne8 21.Qc3+-) 20.de5 fe5 21.Nh3 (21.Rd1 Rh4 22.c5 Nc5 23.Be5 Rh6+-) 21...Rh3 (21...Nc5 22.Ng5 Qb7 23.Be5+-) 22.gh3 Qf3 (22...Nc5 23.Rd1+-) 23.Rf1 Qe3 24.Qe2 Qe2 25.Ke2 Bg7 (25...Be7 26.Be5 Nc4 27.Bb8+-) 26.Rae1 (better is 26.Bc1!? Na5+-) 26...Nc4 (26...Ke7 27.Bc3+-) 27.Rf7 (27.Rf7 Nbd6 28.Rg7 Nb2 29.Rf1+-) 1–0. kofti – michaelanthony, ChessWorld.net, 2005.

6.c4 Qb6 A) 7.b5 Bd6 (7...a6 8.Nc3 Bd6 9.Qh5 g6 10.Qf3 Bf5 11.Bd3+/-; 7...Nh6 8.Bd3 Bd6 9.Nf3 a6 10.Nc3 0-0 11.0-0+=) 8.Bd3 Ne7 9.Nf3 a6 10.a4 ab5 11.ab5+=; B) 7.Bc3 Nh6 (7...Bd7 8.f4 ef4 9.Qh5 Kd8 10.d4 cb4 11.c5+/-; 7...Nd7 8.Qa4 Bd6 9.Be2 Nh6 10.d3 0-0 11.Nf3+=) 8.Nf3 Kf7 9.bc5 Bc5 10.d4 ed4 11.Bd4+=; C) 7.Qh5 Kd8 (7...g6 8.Qe2 Kf7 9.b5 Nd7 10.Nf3 Kg7 11.Nc3+/-) 8.b5 Bd6 9.Be2 g6 10.Qf3 Bf5 11.Nc3+=.

6.c4 Nc6 A) 7.b5 Na5 8.cd5 Qd5 9.Qh5 g6 10.Qf3 Qf3 11.Nf3+=; B) 7.c5 Nh6 (7...Nge7 8.Nf3 Ng6 9.Bb5 Be7 10.d4 e4 11.Nfd2=; 7...Qc7 8.Nf3 Bg4 9.Be2 b6 10.d4 bc5 11.dc5=; 7...Bf5 8.Nf3 Rc8 9.d4 e4 10.Nfd2 Nge7 11.b5+=; 7...Bd7 8.d4 Nd4 9.Bd4 ed4 10.Qd4 a5 11.Ra2=; 7...Be6 8.d4 Nd4 9.Bd4 ed4 10.Nf3 Bd7 11.Nd4+=) 8.Nf3 Be7 9.b5 Na5 10.d4 ed4 11.Qc2+=; C) 7.cd5 Qd5 8.Nc3 Qd8 9.Bc4 Bf5 10.Nf3 Rc8 11.Qb3=.

6.c4 Nd7 A) 7.Bc3 Bd6 (7...Qb6 8.Qa4 Bd6 9.Be2 Nh6 10.d3 0-0 11.Nf3+=) 8.Qg4 Qe7 9.Be2 Nh6 10.Qh5 Nf7 11.bc5+=; B) 7.Bd3 Nh6 (7...g6 8.Qa4 a5 9.b5 Nb6 10.Qc2 Bd6 11.Ne2+/-) 8.Bc3 b5 9.cb5 cb4 10.ab4 Bb7 11.Be4+=.

6.c4 Be6 7.c5 d4 (7...Qc7 8.Bb5 Nc6 9.Nf3 a6 10.Ba4 Nge7 11.0-0=; 7...Nd7 8.d4 Qc7 9.Nc3 b6 10.Be2 bc5 11.dc5+=; 7...Nc6 8.d4 Nd4 9.Bd4 ed4 10.Nf3 Bd7 11.Nd4+=) 8.Bb5 Kf7 9.Nf3 Nc6 10.Qc2 Nge7 11.0-0=.

6.c4 Be6 7.cd5 Qd5 8.Nc3 Qd7 9.Nf3 Nc6 10.Rc1 Rc8 11.d4=.

6.c4 Be6 7.cd5 Bd5 8.Nc3 Bf7 9.Bb5 Nc6 10.Nf3 a5 11.ba5+=.

6.c4 Nh6 A) 7.Nc3 Nd7 (7...Bf5 8.Nf3 Nd7 9.Nh4 Bg4 10.f3 Bh5 11.bc5+=) 8.Nb5 a6 9.Qa4 Qb6 10.Nf3 cb4 11.ab4=; B) 7.bc5 Bc5 8.d4+= ed4 9.Bd4 Bd4 10.Qd4 0-0 11.Bd3+=; C) 7.Nf3 Qb6 (7...Kf7 8.bc5 Bc5 9.d4 ed4 10.Bd4 Bd4 11.Nd4+/-; 7...e4 8.Ng1 Bg4 9.Be2 Bf5 10.Bh5 g6 11.Be2+/-; 7...Nf5 8.Nc3 Kf7 9.bc5 Bc5 10.Bd3 Na6 11.Ne4+/-; 7...Bf5 8.Be2 Nd7 9.bc5 Bc5 10.d4 ed4 11.0-0+/-; 7...Na6 8.b5 Nc7 9.Bd3 Nf5 10.Qc2 g6 11.0-0+/-) 8.b5 Bd6 9.Bd3 a6 10.Nc3 0-0 11.0-0+=.

6.d4 a6 7.c4 (7.de5 Nc6 8.Bd3 Qe7 (worse 8...fe5 9.Qh5 Kd7 10.Nf3+-) 9.Qh5 g6 10.Bg6 Kd8+-) 7...Ne7 (7...Be6 8.de5 dc4 9.Qd8 Kd8 10.Nf3+=) 8.c5 (8.de5 fe5 9.Be5 Nbc6+-) 8...b6 (8...Nbc6 9.de5 fe5 10.Nf3=) 9.Ne2 (9.de5 fe5 10.Be5 bc5 11.Qh5 g6+-) 9...bc5 10.bc5 (10.dc5 Nbc6=) 10...Nf5 (10...Nbc6 11.Nd2=+) 11.Qc2 (11.de5 Bc5 12.Nf4 Bf2 13.Kf2 Qb6 14.Bd4 Nd4 (14...Qd4?! 15.Qd4 Nd4 16.ef6=) 15.Nd5 Qc5 16.Qa4 Ndc6 17.Ne3 fe5–+) 11...Nc6=+ 12.de5 fe5 13.Nec3? (13.Nd2 Rb8-/+) 13...Bc5 (13...Nfd4 14.Qd1 Bc5 15.Na4–+) 14.Nd2? (better 14.Na4!? Bf2 15.Qf2 Qa5 16.Nac3=+) 14...0-0 (better 14...Nfd4 15.Qd1 Rb8–+) 15.0-0-0?? (better 15.Nd1 Qb6 16.Qb3–+) 15...Bf2 (better 15...Nfd4 16.Qd3–+) 16.Nd5 Qd5?? Decoy theme: d5 (16...Be6 17.Nf3 Bd4 18.Nf4 ef4 19.Nd4 Nfd4 20.Bd4 Nd4 21.Bc4 Bc4 22.Qc4 Kh8 23.Rd4–+) 17.Ne4?? (better 17.Bc4!? Be6 18.Bd5 Bd5 19.Nf3 Be3 20.Kb1=) 17...Ne3 (better 17...Be3 18.Kb1 Qf7 19.Qc6 Bb7–+) 18.Rd5-/+ Nc2 19.Kc2 Bf5 20.Bd3 Rfc8 (better 20...Rac8 21.Kd2 Bb6-/+) 21.Nc5?? Attacking the isolated pawn on a6 (better 21.Nf2 Nb4 22.Kd2 Nd3 23.Rd3 (worse 23.Nd3 Rd8 24.Re5 Rd3 25.Ke2 Rb3-/+) 23...Bd3 24.Nd3+=) 21...Bd3 22.Kd3 Rcb8 (better 22...Ne7 23.Re5 Bc5 24.Rc1 Rd8 25.Kc2–+) 23.Rf1?? (better 23.Na4-/+) 23...Rb2–+ 24.Ne4 (24.Nd7 Rd8–+) 24...Bd4 25.Rd8 (25.Rd7 Rd8 26.Rd8 Nd8 27.Rf3–+) 25...Rd8 26.Nf6 Kh8 (better 26...gf6 27.Rf3–+) 27.Nh7 Kh7 28.Rf8 Rf8 29.Ke4 (29.h3 Rb3 30.Kc2 Ra3 31.Kd1 Rf2 32.g3 Ra1) 29...Rg2 (29...Rb3 30.Kd5 Ne7 31.Ke6 Rb7 32.h3 Rf6) 30.Kd5 0–1. pat_cash87 – chessbruhh, lichess.org, 2020.

6.d4 Bd6 7.de5+= fe5 8.Nf3 Nf6 (8...Bg4 9.Be2 Bf3 10.Bf3 Nf6+/-) 9.Bb5 (9.Be5!? Qe7 10.Qe2+=) 9...Bd7= 10.Bd7 Nbd7 11.0-0 (11.c4 e4 12.Qe2 Qe7=) 11...0-0+= 12.h3 (12.c4 e4 13.Ng5 Qb8 14.cd5 Bh2 15.Kh1 Be5+=) 12...Kh8 (12...Rc8!?-/+) 13.c4= d4 (13...a5 14.Ng5 Qb6 15.cd5 ab4 16.ab4 Qb4 17.Bc3=) 14.Re1 (14.c5 Bc7=) 14...Rc8 (14...Qb6 15.Bc1 Qc6 16.Nbd2=) 15.Nbd2 (15.c5 Bc7+=) 15...Bb8 (15...Qb6 16.c5 Bc5 17.Nc4+/-) 16.Ng5 (16.Qb3 Qc7=) 16...Qb6 17.Rc1 Nc5 (17...Rcd8 18.c5 Qc6 19.Qf3 Qf3 20.Ndf3=) 18.Nde4 (18.Bd4 ed4 19.bc5 Qa6+=) 18...Nfe4 19.Ne4 Ne6 (19...Ne4 20.Re4 Qg6 21.Qd3=) 20.g3 (20.c5 Qb5=) 20...Qd8 21.Kg2 (21.Qg4 Qe8=) 21...Ng5 22.Ng5 (22.Qd3 Nf3 23.Re2 Qc7=) 22...Qg5+= 23.Re4 Qf5 Attacks the backward pawn on f2 (23...Rf7 24.Rc2=) 24.f3= Rc6 (24...Qg6 25.Qd3+=) 25.Qd3 Rh6 (25...b6 26.c5=) 26.Rh1 Rhf6 Will f3 fall? 27.Rf1 g5 (27...Bc7 28.Bc1=) 28.a4 (28.Bc1 Bd6+=) 28...h5 (28...Rh6 29.g4 Qf7 30.a5=) 29.g4 (29.a5 Qg6=) 29...Qh7 (29...Qg6 30.Bc1=) 30.Bc1 hg4 31.hg4 Rh6 (31...Qg6 32.Bd2=) 32.Kf2+= (32.Bg5?? Rh2 33.Kg1 Qh3 34.Bf6 Rf6 35.Re2 Qg3 36.Rg2 Qg2) 32...Rh2 33.Ke1 Qh4 34.Kd1 Rf2 35.Rf2 Qf2 36.Bg5 (better is 36.Qe2!? Rf3 37.Qf2 (37.Bg5?? Qg1 38.Kd2 Rf2–+; worse is 37.Re5 Be5 38.Qe5 Kh7 39.Qe7 Rf7 40.Qe4 Kg7 41.Qe5 Qf6 42.Qg5 Qg5 43.Bg5 a5-/+) 37...Rf2 38.Bg5=) 36...Rf3-/+ 37.Qe2?? (better is 37.Qd2 Qg1 38.Re1 Qg4 39.Kc1–+) 37...Qg1–+ (37...Qg1 38.Kd2 Rf2 39.Bf6 Kg8 40.Be5 Re2 41.Re2 d3–+ (41...Qg4?! 42.Bb8 Qh3 43.Ba7 Qc3 44.Kd1–+)) 0–1. Biberger,Hans (1905) – Monninger,Moritz_Franz (1915), RLSW_Unterhach–TarrMue2, 2003.

6.Qe2 Nc6 7.d4 Bd6 8.de5 fe5 9.Nf3=.

6.Qe2 Bd6 7.d3 (7.Qb5!? Nc6 8.Qd5+=) 7...Be6 8.Bc1 (8.d4 Nd7=) 8...Ne7-/+ 9.Qf3 0-0 10.Be2 Nbc6 11.c3 d4 (better 11...Nf5 12.Bd1 Qc7-/+) 12.Qg3? (12.c4 Rb8-/+) 12...Ng6 (12...dc3 13.Bg4 Bg4 14.Qg4-+) 13.c4? (13.Bg4 f5 14.Bh5-+) 13...e4!-+ 14.f4 (14.de4 Bg3 Discovered attack) 14...Nf4?? (better 14...e3 15.Nh3 Bh3 16.Qh3 Nf4-+) 15.Bf4+/- Bf4 16.Qf4 g5? (better 16...Re8!? 17.Kf1 f5+/-) 17.Qe4+- Re8 18.Qf3 Ne7 (18...Ne5 19.Qg3+- (19.Qb7?! Nd3 20.Kf1 Bc4+-)) 19.Qf6 Ng6 20.Qg5 (better 20.Qd8 Rad8 21.Kd2 Bf5+-) 20...Rf8 (better 20...Qg5 21.Nf3 Qc1 22.Bd1 Qe3 23.Kf1 Nf4-+) 21.Qh5 (better 21.Qg3!? a5 22.b5 Bf5+-) 21...Qf6 22.Nf3 (better 22.Nh3+-) 22...Ne5 (22...Nf4 23.Qe5 Qe5 24.Ne5 Rae8+-) 23.0-0 (better 23.Qe5 Qe5 24.Ne5 Rae8+-) 23...Nf3 (23...Ng6 24.Ng5 Qe7 25.Nd2+-) 24.Rf3 Qg7 (24...Qd8 25.Qe5 Bf7 26.Rg3 Bg6 27.Bf3+-) 25.Rf8 (better 25.Rg3 Qg3 26.hg3+-) 25...Rf8 26.Nd2 Qf6 (26...Bf7 27.Qh4 Qe5 28.Ne4+-) 27.Nf3 (27.Rf1 Qe7+-) 27...Bd7 (27...Qf4 28.Re1 Qe3 29.Kh1+-) 28.Rf1 Be6 (28...Qd6 29.Qg5 Kh8 30.Ne5 Rf1 31.Kf1+-) 29.Ne5 (better 29.Ng5 Qe7 30.Rf8 Kf8 31.Qh6 Kg8 32.Qe6 Qe6 33.Ne6 Kf7 34.Nd4 Kf6+-) 29...Qf1 (29...Qe7+-) 30.Bf1 Rf2 31.Kf2 (31.Kf2 Kh8 32.Qh6 Kg8 33.Qe6 Kg7 34.Qe7 Kh6 35.Qf6 Kh5 36.Be2) 1-0. tunniato - Quasar15, lichess.org, 2020.

6.Be2 a5 7.b5 b6 8.d3 Be6 9.Nf3 Nd7 10.Nbd2 Bc5 (10...Bd6 11.c4+=) 11.0-0 (11.d4 ed4 12.Nd4 Bd4 13.Bd4 Ne7+/-) 11...Ne7 12.d4 Bd6 13.c4 (better is 13.de5!? fe5 14.Nc4+=) 13...e4+=.

6.Be2 d4 7.Nh3 Be6 8.f4 Bh3 9.gh3 Qd7 10.Rg1 Qh3 11.Bh5 g6 12.Bg4 Qh2 13.Rf1 Qh4 14.Ke2 Nc6 15.Kd3 Nce7 16.Kc4 h5 17.Kb3 hg4 18.c4 Qg3 19.Ka2 Rh2 20.fe5 fe5 21.d3 Rf2 22.Nd2 Rf1 23.Qf1 Bh6 24.Ne4 Qe3 25.Qh1 Bf4 26.Nd6 Kd7 27.Nb7 Kc7 28.Nc5 Rb8 29.Qe1 Qe1 30.Re1 Nf5 31.Re4 Ne3 32.Ne6 Kd6 33.Ng7 Rf8 34.c5 Kd5 35.a4 Nf6 36.Ba3 Ne4 37.de4 Ke4 38.Ne6 Re8 39.c6 Re6 40.c7 Rc6 41.b5 Rc7 42.Bd6 Rb7 43.Be5 Rb5 44.Bd4 Rb4 45.Be3 Ra4 46.Kb3 Be3 47.Ka4 g3 48.Kb3 g2 49.Kc4 g1Q 50.Kb5 Qf2 51.Kc6 Bd2 52.Kd7 Qd4 53.Ke6 g5 54.Kf7 g4 55.Kg6 g3 56.Kh7 ½-½. thehumanlettuce (1910) - heavysagitario (1775), Rated Bullet game, lichess.org.

6.Nf3 a6 7.Be2 Nc6 8.d3 Bd6 9.0-0 Nge7 10.c4 Be6 11.Nc3 d4 12.Ne4 0-0 13.Nfd2 h6 (13...Ng6 14.Nd6 Qd6 15.Ne4=) 14.Nd6 Qd6 15.Ne4 Qc7 16.Nc5 Bf7 17.Bc1 b6 18.Nb3 f5 (18...Be6 19.Bf3=) 19.Bf3 (19.f4 e4+=) 19...e4 20.de4 Bc4 21.Be2 (21.Re1 Rad8=) 21...b5 (21...Be2 22.Qe2 Qe5 23.Bb2 fe4 24.Qc4 Qd5 25.Qd5 Nd5 26.Rac1=) 22.Nc5 fe4 23.Ne4 Qe5 24.Bd3 Rfe8 25.Nc5 (25.Re1 Nd5 26.Bb2 Nf4=+) 25...Rad8 (25...Nd5 26.Bd2=+) 26.Bb2 (26.Re1 Qf6=) 26...Nd5 27.Qc2 Bd3 28.Nd3 Qd6 29.Rae1 Re1 30.Re1 Rc8 (30...Qg6 31.Rc1=) 31.Nc5 (31.Bd4 Rd8 32.Bb2 Qg6+/-) 31...Ne5? (better 31...Nc7!?+=) 32.Bd4+/- Nb4? (32...Re8 33.Qd1 Nf6 34.Be5 Re5 35.Qb3 (35.Qd6?? Re1) 35...Kh8 36.Rd1+/-) 33.Qb3 (33.Qf5 Rf8 34.Qe5 Qe5 35.Re5 Nc6+-) 33...Nd5? (33...Nc4 34.Qh3 Rc7 35.Re8 Kf7+-) 34.Ne4 (34.Be5?! Qc5 35.a4 Re8=; 34.Re5?! Rc5 35.Re8 Kf7 36.Bc5 Qc5+-) 34...Qe6 35.Nd2 (35.Nd2 Nf4 36.Qe6 Ne6 37.Be5+-) 1-0. Timmermans,Mark (2385) - Musat,A (2385), Titled Tuesday, 2021.

6.Nf3 Nc6 7.b5 Nce7 8.Be2 Ng6 9.0-0 Bd6 10.g3 (10.d4 e4 11.Nfd2 Nf4=) 10...N8e7=+ 11.Re1 Be6 12.Bf1 Qb6 13.a4 0-0 14.d3 (14.a5 Qc7=+) 14...Bc5 15.Re2 Bg4 16.Bg2 e4 (16...a6 17.c4=+) 17.de4 de4 18.Nd4?? (better 18.Re4!? Bf2 19.Kf1=+) 18...Be2 (18...Bd4 19.Bd4 Be2 20.Qd2–+) 19.Ne2? (better 19.Qe2 Rad8 20.Nb3–+) 19...Bf2 20.Kh1 e3 (20...f5!? 21.Qf1–+) 21.Nbc3 (21.Bd4 Qc7–+) 21...Rad8 22.Ne4 (22.Qb1–+) 22…Rd1 (22...Rd1 23.Rd1 Rd8–+) 0–1. Markzela (1710) – danpohner (1675), lichess.org, 2020.

6.Nf3 Nc6 7.Be2 Bd6 8.0-0 Nge7 9.d4 e4 10.Nfd2 0-0 11.c4 f5 12.Nc3 (12.b5 Na5=) 12...dc4 (12...Nd4!? 13.cd5 Ne2 14.Qe2 Be5=+) 13.Bc4 (13.Nc4 a6+=) 13...Kh8= 14.Nb3 Ng6 15.g3 Qg5 16.Bc1 Qe7 17.Nd5 (17.f3 Qc7 18.fe4 Bg3+=) 17...Qe8 18.b5 Nce7 19.a4 (19.Nc3 Bd7=) 19...Nd5 20.Bd5 f4 (20...Ne7 21.Bc4=) 21.Re1 (21.Qe2+=) 21...fg3 (better 21...e3!? 22.fe3 fg3 23.hg3 Bg3=) 22.hg3 Bf5 23.Nd2 (23.Bb7 Rb8 24.Bd5 Qd7 25.Be4 Be4 26.Re4 a6+/-) 23...Bg3 (better 23...Qd7!? 24.Qb3 Bb4 25.Qb4 Qd5=+) 24.fg3+/- Qd7 25.Qb3 Rad8 26.Ba3 Rfe8? (better 26...Qd5!? 27.Qd5 Rd5 28.Bf8 Nf8 29.Ne4 Rd4+-) 27.Bf7+- Qd4 28.Kh1?? (better 28.Qe3 Qe3 29.Re3+-) 28...e3 (better 28...Qd2 29.Qe3 Re5-+) 29.Be8?? (29.Qb4 Qe5 30.Nf1 e2 31.Re2 Qe2-+) 29...ed2?? (29...Be4 30.Kh2 Qd2 31.Kh3 Qg2 32.Kg4 Qf3 33.Kh3 Qh5) 30.Rf1? (30.Qe3 de1R 31.Re1 Qg4 32.Bg6 Bg6-/+) 30...Be4 (better 30...Qe4!? 31.Qf3 Qf3 (31...Re8?! 32.Qe4 Be4 33.Kg1-+) 32.Rf3 Be4 33.Bg6 Bf3 34.Kg1 hg6-+) 31.Kh2 Re8 32.Rad1?? (32.Qf7 Qe5 33.Be7 Qe7 34.Qe7 Re7-+) 32...Ne5 (better 32...Bd5 33.Qd5 Qd5-+) 33.Rf4 Ng4 34.Rg4 (34.Kh3 Nf2 35.Kh2-+) 34...Qf2 35.Kh3 Bg2 (35...Qg2 36.Kh4 Qh2 37.Kg5 Qh6) 36.Kh4 Qf6 (36...Qf6 37.Rg5 Qh6 38.Rh5 g5 39.Kg4 Re4 40.Kf5 Qg6) 0-1. jhonores (2240) - Nugroho65 (2240), Rated Blitz game, lichess.org, 2020.

6.Nf3 Nc6 7.Be2 Be6 8.0-0 Bd6 9.d3 Nge7 10.Nbd2 0-0 11.c4 d4 12.Ne4 Bc7 13.Nc5 Bc8 14.Nd2 b6 15.Ncb3 Bb7 (15...a6 16.Bf3 Bb7 17.Rc1=) 16.Bf3 Qd7 17.Rc1 White plans c5 17...f5 18.Re1 Nd8 (18...a6 19.b5 Nd8 20.Bb7 Nb7 21.f4+=) 19.c5 (19.Bb7 Nb7 20.f4 Ng6 21.fe5 Be5+/-) 19...Bf3 20.Qf3 (worse 20.gf3 Ne6-/+) 20...Ne6 21.Nc4 Ng6 22.cb6 (22.c6!? Qd8 23.g3=) 22...ab6=+ 23.Nbd2 (better 23.Ncd2!?=+) 23...b5-/+ 24.Na5 Ba5 25.ba5 Ra5 26.Qc6 (better 26.Nb3!? Ra4 27.Nc5 Nc5 28.Rc5-/+) 26...Qc6-+ 27.Rc6 Nef4 28.Nb3 Raa8 (better 28...Nd3!? 29.Rb1 Raa8 30.Rb6-+) 29.Nc1 Rfc8 30.Rb6 Rab8 31.Rb8 Rb8 32.g3 Nd5 33.h4 (better 33.f4 ef4 34.Bd4-/+) 33...Re8 (better 33...h5-+) 34.Bd4 Kf7 35.Bb2 h5 36.Kf1 Ke6 (better 36...b4=+) 37.f4+/- Kd6 38.fe5 Ne5 (38...Ke7 39.Nb3+/-) 39.d4+- Nc4 40.Re8 Nb2 41.Ne2 (41.Rd8 Ke6+-) 41...Nc4 42.Rb8 (42.Rd8 Ke7 43.Rg8+- (43.Rd5?! Ne3 44.Ke1 Nd5+=)) 42...Na3+/- 43.Kf2 b4 44.Kf3 (44.Nf4!? Nf4 45.gf4+/-) 44...Kc7= 45.Rg8 b3 46.Rg7 Kb6 47.Rd7?? (47.Rg8 Nb5 48.Rb8 Kc6 49.Rc8 Ndc7 50.Rb8-+) 47...Kc6 (better 47...b2!? 48.Rd8 Kc7 49.Rd5-+) 48.Rd8 b2 49.Rb8 (49.Rc8 Kb7 50.Rc1-+) 49…Nb5 0-1. jhonores (2180) - mesterseen (2295), Rated Blitz game, lichess.org, 2020.

6.Nf3 d4 7.Be2 Bg4 8.d3 Bf3 9.Bf3 Qc7 10.Nd2 Nc6 11.0-0 b6 12.b5 Bc5 13.bc6 Ne7 14.Ne4 Nc6 15.Nc5 bc5 16.a4 0-0 17.c4 Nb4 18.Ba3 a5 19.Bb4 ab4 20.Bd5 Kh8 21.Qb3 Ra7 22.f3 h6 23.Rfe1 Re8 24.Be4 Ra5 25.Qc2 Qa7 26.Bc6 Re6 27.Bb5 Rb6 28.Qd2 Qe7 29.f4 Rb7 30.Qe2 Rba7 31.fe5 f5 32.e6 Ra8 33.Qf3 Re8 34.Qf5 Ra7 35.Be8 1-0. itaca (1950) - karimi222 (1615), Rated Blitz game, lichess.org.

6.Nf3 d4 7.Be2 Nh6 8.0-0 Bg4 9.d3 Nc6 10.b5 Ne7 11.Nbd2 Bf3 12.Bf3 Nd5 13.Ne4 Nf4 14.c4 b6 15.Ng3 Bc5 16.Ba8 Qa8 17.f3 Ng4 18.Bc1 Ne3 19.Be3 de3 20.Ne2 Ne2 21.Qe2 0-0 22.Kh1 f5 23.a4 f4 24.Rfe1 Bd4 25.Rac1 a6 26.Qa2 ab5 27.cb5 Kh8 28.Rc4 Rd8 29.h3 g5 30.Rc6 Qa5 31.Re2 Qa8 32.Qf7 Rc8 33.Qf6 Kg8 34.Qe6 Kh8 35.Rc8 Kg7 36.Ra8 1-0. itaca (1950) - karimi222 (1620), Rated Blitz game, lichess.org.

6.Nf3 Bd6 7.c4 Be6 8.Nc3 (8.cd5!? Bd5 9.Nc3+=) 8...dc4=+ 9.d4 ed4 (better 9...cd3!? 10.Qd3 Nc6=) 10.Nd4+= Bf7 (10...Qe7 11.Ne6 Qe6 12.Qe2 Qe2 13.Be2+=) 11.Qg4 (11.Nf5 Be5 12.Ng7 Ke7+/-) 11...Qe7 (better 11...g6!?+=) 12.Be2+/- Nh6 (12...Kf8 13.Qc8 Qe8 14.Qb7+/-) 13.Qg7 Bf4?? (better 13...Qf8 14.Qf6 Nd7+-) 14.Qh8 Kd7 (14...Ng8 15.Qh7 Kd8 16.Nf5+-) 15.Rd1 (15.Rd1 Kc7 16.Qh7+-) 1-0. jhonores (2100) - MakcumUcaeb (2060), Rated Blitz game, lichess.org, 2020.

6.Nf3 Be6 7.Be2 Nc6 8.0-0 Bd6 9.d4 e4 10.Nfd2 f5 11.c4 Nf6 12.Nc3 (12.c5 Bf4=) 12...h5 (better 12...Nd4!? 13.cd5 Ne2 14.Qe2 Nd5 15.Nd5 Bd5 16.Qh5 g6=+) 13.cd5+= Bh2? (better 13...Nd5 14.Nc4 Bf4+=) 14.Kh2+- Ng4 15.Kg3?? (15.Kh3 Qd6 16.g3+-) 15...h4 (15...Qd6 16.f4 ef3 17.Kh4 g5 18.Kg5 Rg8 19.Kh5 Qh2) 16.Kf4 (16.Kh3 Qd6 17.Bg4 fg4 18.Qg4 Bg4 19.Kg4 Qg6 20.Kh3 Qf5 21.Kh2 Qf4 22.Kg1 Qd2 23.dc6-+) 16…g5 0-1. jhonores (2210) - io_11 (2250), Rated Blitz game, lichess.org, 2020.

6.Nf3 Be6 7.Be2 Bd6 8.0-0 Ne7 9.d4 e4=+ 10.Nfd2 Nd7 11.c4 0-0 12.c5 Bc7 13.b5 Rc8 14.a4 f5 15.Nb3 White prepares a5 (15.a5 Bf4=) 15...f4 16.a5 (16.Re1 Rf6 17.N1d2 f3 18.gf3 Bh2 19.Kh1 Rh6 20.fe4 Bf4 21.Kg1 Qe8-+) 16...Nf5 (16...f3!? 17.gf3 Qe8-/+) 17.b6=+ ab6 18.ab6 Bb8 19.Bg4 Nf6 20.Bh3 Qe8 21.Ra8 (21.Na5 f3 22.Nb7 Qh5-/+) 21...g5 (21...f3 22.Rb8 Rb8 23.Qd2-+) 22.Bc1 (22.Bf5 Bf5 23.f3 ef3 24.Rf3 g4-+) 22...Nh4 (better 22...f3!? 23.Rb8 Rb8 24.Bg5 Qg6 25.Bf6 Rf6-+ (25...Qf6?! 26.gf3 Nh4 27.Be6 Qe6 28.Kh1-+)) 23.Be6= Qe6 24.f3 g4 (better 24...ef3 25.gf3 g4-/+) 25.fe4?? (25.Qe1 Ng6=) 25...Ne4?? (better 25...Qe4 26.Ra2 Qb1-+) 26.Rb8=+ Rb8 27.Bf4 Rbe8 28.N1d2?? (28.Na5 Qg6 29.Kh1 g3 30.Bg3 Ng3 31.hg3 Rf1 32.Qf1 Qg3 33.Nc6 Re1 34.Ne7 Kh8 35.Ng6 Kg7 36.Qe1 Qg2) 28...Ng6 (better 28...Nc3 29.Qa1 Ne2 30.Kh1 Nf4-+) 29.Bd6? (29.Bh6 Rf1 30.Qf1-/+) 29...Rf1-+ 30.Qf1 (30.Nf1 Qf5 31.Bg3-+) 30...Nd6 31.cd6 Qd6 32.Nc5 Qb6 33.Nd7? (33.Qf5 Qd6 34.Qg4-+) 33...Qd4 34.Kh1 (34.Qf2 Qf2 35.Kf2 Kf7-+) 34...Qd2 (34...Kg7!? 35.Nf6 Qf6 36.Qf6 Kf6 37.Kg1-+) 35.Nf6 Kf7 36.Ne4 (36.Ne8 Ke8 37.Qb5 Kf8 38.Qc5 Ne7-+) 36...Qf4 37.Nd6 (37.Qf4 Nf4 38.Nd6 Kf8 39.Ne8 Ke8-+) 37...Ke7 (better 37...Kg8 38.Qg1 Qd6 39.Qf2-+) 38.Qf4 Nf4 39.Ne8 Ke8 40.Kg1 b5 41.Kf2 b4 42.Ke3 b3 43.Kd2 d4 44.Kc1 Ng2 45.Kb2 h5 46.Kb3 Nf4 47.Kc4 If White now only could play h4... 47...d3 48.Kc3 h4 49.Kd2 g3 50.Ke3 gh2 51.Kf4 (51.Kd2 h1Q 52.Ke3 Qc1 53.Kd4 d2 54.Ke5 d1Q 55.Kf6 Qd4 56.Kf5 Qcc5 57.Kg4 Qh5) 51...h1Q (51...d2 52.Kf3 d1Q 53.Kf4 Qd4 54.Kg5 h1Q 55.Kh5 Qg2 56.Kh6 Qh8) 52.Ke5 (52.Kf5 Qf3 53.Ke5 d2 54.Kd4 d1Q 55.Kc5 Qc3 56.Kb5 Qd5 57.Kb6 Qca5) 52...d2 53.Kf4 (53.Kf5 Qg2 54.Ke5 d1Q 55.Kf4 Qd4 56.Kf5 Qgg4) 53...d1Q 54.Ke3 (54.Kg5 Qhd5 55.Kh4 Q1h5 56.Kg3 Qdf3) 54...Qdf3 (54...Qhf3) 55.Kd4 Qhd1 (55...Qa1 56.Kc5 Qa5 57.Kd4 Qac3) 56.Kc4 (56.Kc5 Qc3 57.Kb5 Qd5 58.Kb6 Qca5) 56...Qfd3 (56...Qdd5 57.Kb4 Qfb3) 57.Kc5 Q1b3 58.Kc6 Qdd5 59.Kc7 Qbb7 (59...Qd7) 0-1. jhonores (2230) - masterdoctor (2165), Rated Blitz game, lichess.org, 2020.

6.f4 e4 7.c4 d4 8.Ne2 d3 9.Nec3 f5 10.Nd5 Be6 11.Nbc3 (11.Qh5 Kd7 12.Nbc3=) 11...Nd7 (better 11...Ne7!?=+) 12.Qh5+= g6 13.Qh3 (13.Qg5 Bg7 14.Nc7 Kf7 15.Qd8 Rd8 16.Ne4 Bb2 17.Ng5 Ke7 18.Nce6 Rc8+=) 13...Bg7 (better 13...Bd5 14.Nd5 Ngf6=) 14.0-0-0?? (better 14.Nc7! Qc7 15.Nb5 Qc4 16.Nd6 Kf8 17.Nc4 Bc4 18.Bg7 Kg7 19.g4 fg4 20.Qg4+/-) 14...Rc8 (better 14...Kf7!? 15.Kb1 Ngf6-+) 15.Ne4= Bb2 (15...Rc4 16.Kb1 Kf8= (worse 16...fe4 17.Qe6 Kf8 18.Ne3+/-)) 16.Kb2+= Bd5 (better 16...Ndf6 17.Nec3 Bd5 18.cd5 a5 19.Qd3 ab4 20.Qb5 Kf7 21.Qb4 b6+/-) 17.cd5?? (better 17.Nd6 Kf8 18.Nc8 Qc8 19.Qd3+=) 17...fe4-+ 18.Bd3? (18.Qe6 Qe7 19.Qe7 Ne7 20.Re1 Rc2 21.Kb3-+) 18...ed3 19.Rde1 Kf8 20.Re6 (20.Qd3 a5-+) 20...Rc2 21.Kb1 Rd2 (21...Nc5 22.Re5 Qd7 23.Qd7 Nd7 24.Ree1-+) 22.Rhe1 (22.Qe3 Rg2 23.Qf3 Rc2 24.Qd3 Rc8-+) 22...Ngf6 (22...Qc7 23.Re8 Kg7 24.Rc1-+) 23.Qe3 (23.Qh6 Kf7 24.Re7 Qe7 25.Re7 Ke7 26.Qg7 Kd6 27.Qh8 Rg2-+) 23...Re2 (better 23...Rg2!? 24.Qh3 Re2 25.Qd3 Re1 26.Re1-+) 24.Re2 de2 25.Qe2 (25.Qd4 Kf7 26.Re2 Re8 27.Re8 Qe8-+) 25...Nd5 26.Rd6 (26.Qf3 N7f6 27.g4-+) 26...Nc3 27.Kc2 Ne2 (27...Ne2 28.Kd2 Nf4-+) 0-1. norba94 (2360) - AntoineBriet (2565), Rated Blitz game, lichess.org, 2016.

6.f4 ef4 7.Qf3 Bd6 8.Ne2 Ne7 9.Nbc3 The isolani on d5 becomes a target 9...0-0 10.Nd5 Nd5 11.Qd5 Kh8 12.0-0-0 a5 13.Nc3 ab4 14.ab4 Bb4 15.Qd8 Rd8 16.Bc4 Nc6 17.Rhe1 Ne5 18.Be2 Bf5 19.d4? (19.h4 Kg8-+) 19...Nc6 (19...Rdc8 20.de5 Rc3 21.Rd2-+ (21.Bc3?? Bc3 22.Ba6 h6-+)) 20.Bf3? (better 20.d5!? Ne5 21.Rf1-/+) 20...Nd4-+ 21.Bb7 Rab8 22.Be4 Bg4 23.Rd3 Bc3?? (better 23...Nb5 24.h3 Rd3 25.cd3 Nc3 26.hg4 Na2 27.Kb1 Be1 28.Ka2 Bd2-+) 24.Bc3=+ Ne2 25.Kd2 Nc3 26.Kc3 Rbc8 27.Kd2 f5 28.Bb7 Rb8 29.Rb1 Rd3 30.cd3 f3 31.Rc1 (31.Bf3 Rb1 Pinning (31...Rb1 Deflection); 31.gf3 Bf3) 31...f2 32.Bf3 Bf3 33.gf3 g5 34.Ke3 Rb2 35.Rf1 Kg7 36.d4? (better 36.f4-/+) 36...Kf6-+ 37.f4 Rb3?? (better 37...g4 38.Ra1 Ra2-+) 38.Kf2=+ gf4 39.Rd1 Rb2 40.Kf3 Rh2 41.Kf4 Rh4 42.Kg3 Re4 43.Kf3 Re7 44.d5 Rd7 45.Kf4 Rd6 46.Rd2 h5 47.Rh2 Rd5 48.Rh5 Attacking the isolated pawn on f5 48...Rd4 49.Ke3 Re4 50.Kf3 Ke5 51.Rh6 Rf4 52.Kg3 Ra4 53.Kf2 Ra3 0-1. pacalmisu (2465) - AntoineBriet (2505), Rated Blitz game, lichess.org, 2016.

6.Nc3 Nc6

7.Bb5 Bf5 8.d4 a6 9.Bc6 bc6 10.de5 d4=.

7.Bb5 Bf5 8.Qf3 Nge7=+ 9.Ba4 Rc8 10.Nge2=+.

7.Bd3 Nge7=+.

6.c4 d4

7.d3 Be6 8.Be2 a5 9.b5 b6 (9...Nd7 10.Bh5 g6 11.Be2=) 10.Nf3 (10.Bh5 g6 11.Bg4 Bg4 12.Qg4 Nd7+=) 10...Nd7 11.0-0 Nc5 12.Nfd2 Bd6 13.Nb3 Ne7 14.N1d2 (14.Nc5 Bc5 15.Bh5 g6 16.Bf3+=) 14...Kf8 (better 14...Na4 15.Qb1 0-0=+) 15.Nc5+- Bc5 16.Bf3 (16.Ne4 Kg8+-) 16...Rc8+= 17.Ne4 Bd6 18.Nd6 Qd6 19.a4 Kf7 20.Ba3 Qd7 21.Rc1 White prepares c5 21...h5 (21...Ng6 22.c5+=) 22.c5 (22.Bh5 Kg8+-) 22...bc5 23.Rc5 Rc5 24.Bc5 Bd5 (24...Nd5 25.Qd2+= (worse 25.Bh5 g6 26.Bf3 Nc3=+)) 25.Be7+- Bf3 26.Qf3 (26.gf3?! Qe7 27.f4 ef4=) 26...Qe7 27.Qd5 (27.Rc1 Qd7+-) 27...Qe6+= 28.Qb7 Qe7 29.Qb6 Qb4 30.Qc7 Kg6 31.Qc4 (31.Qc2 Rb8+=) 31...Qd6 (better 31...Qc4 32.dc4 Rc8=+) 32.Rc1 Rb8 33.f3 f5 (33...h4 34.Qc7 Qa3 35.Rf1+= (35.Qb8 Qc1 36.Kf2 Qd2 37.Kf1 Qd3 38.Ke1 Qe3 39.Kd1 d3 40.Qe8 Kg5–+)) 34.Qc5 The mate threat is Qxd6 34...Qc5 35.Rc5 Kf6 36.Rc6 Ke7 37.Kf2 g5 (37...h4 38.Ke2+-) 38.Ke2 (38.Rg6 g4 39.Rh6 Rc8 40.Rh5 Rc2 41.Kg3 gf3 42.gf3 Kf6+-) 38...h4 39.Kd2 Rb7 (39...Rg8 40.Ra6+=) 40.Rg6 Kd8? (better 40...Rb8!?+-) 41.Rg5+- Rf7 42.Rh5 (42.Ke1 Kc8+-) 42...Kc7? (better 42...Rg7!? 43.Rf5 Rg2 44.Ke1 Ra2 45.Re5 Ra4+-) 43.Rh4 Kb6 (43...f4 44.Ke2+-) 44.Rh6 (44.f4 e4+-) 44...Kc5 45.Ra6 (45.Rc6!? Kd5 46.Ke2 Rg7+-) 45...Kb4 46.b6 (46.Re6 Rg7 47.g3 f4+-) 46...Ka4 (better 46...Rb7!?+-) 47.Ra7+- Rf8 48.b7 (better 48.Re7!? Rb8 49.b7+- (49.Re5?! Rb6 50.Kc2 Rh6+-)) 48...Rb8+- 49.h4 (49.g4 Kb5+-) 49...Kb5 (49...f4 50.h5 Kb5 51.Ra8 Rb7 52.Re8=) 50.h5 (50.g4 Kb6 51.Ra8 Rb7+-) 50...Kb6 (50...f4!?+=) 51.Ra8+- Rb7 52.h6 (better 52.g4+-) 52...Rh7= 53.Rb8 Kc5 54.Rf8 (54.Re8 Rh6 55.Re5 Kb4=) 54...f4 (better 54...Rh6!? 55.Rf5 Kd6=+) 55.Rf5 Kd5 56.Rf6 (56.Rh5!?+=) 56...a4 57.Ra6 a3 (57...Kc5 58.Re6=+) 58.Ra5 (58.Kc2 a2 59.Kb2 Rh8+=) 58...Kc6= 59.Ra3 Kb6 60.Ra8 (60.Rb3!? Kc5 61.Ra3 Rh6 62.Ra5 Kb4 63.Re5=) 60...Rh6-/+ 61.Re8 Rh2 (better 61...Rh5!?-/+) 62.Re6= (62.Re6 Kc5 63.Re5 Kd6 64.Rg5+=) 1–0. BeepBeepImAJeep (2665) – TOMADO1 (2225), lichess.org, 2017.

7.Bd3 Qc7 8.Nf3 a5 9.Qa4 Bd7 10.b5 f5 11.Bc2=.

7.Bd3 Be6 8.Nf3 a5 9.Qe2 Qd7 10.c5 ab4 11.Bb5=.

7.Bd3 Ne7 8.Nf3 Nbc6 9.0-0 Be6 10.Re1 Qd7 11.Qc2=.

7.Bd3 f5= 8.Qe2 Qe7 9.Bc2 Bd7 10.f4 ef4 11.Qe7+=.

7.Bd3 f5=.

7.Nf3 Be6 (7...d3 8.Nc3= (8.Ne5 Qe7 9.Bd3 Nc6 10.Qh5 Kd8 11.f4=) 8...Be6 9.Qb3 Bg4 10.Ne4 Bf3 11.gf3+=; 7...Bf5 8.c5 Qd5 9.Bb5 Nc6 10.d3 Bg4 11.Nbd2+=; 7...a5 8.c5 d3 9.Nc3 ab4 10.ab4 Ra1 11.Ba1=; 7...Bg4 8.Bd3 a5 9.Be4 ab4 10.Bb7 Ra7 11.Bd5=; 7...Nc6 8.Bd3 Nge7 9.0-0 Be6 10.Re1 Rc8 11.Qa4=) 8.Bd3 g6 (8...a5 A) 9.ba5 A1) 9...Nd7 10.Qc2 (10.Qb3= Nc5 11.Qc2–+) 10...g6 11.0-0=; A2) 9...Qa5 10.Qe2 Qb6 11.Bc1=; B) 9.Qe2 Qc8 10.b5 Bd6 11.0-0=) 9.Qe2 (9.0-0 Nc6 10.Qe2 Qb6 11.Be4+=) 9...Qd7 (9...Nc6 10.0-0 Qb6 11.Be4+=) 10.0-0 Nc6 11.Re1 Bg7 12.b5 Nd8 13.a4 Ne7 14.Na3 (14.Be4 f5 15.Bc2 e4 16.Be4 d3 17.Bd3 Bb2-/+) 14...0-0= 15.Nc2 Re8 16.Nb4 (16.a5 Rc8=) 16...Bf7 (16...Rc8 17.a5=) 17.Bc2 (17.a5 Rc8+=) 17...Rc8= 18.Bb3 Nf5 19.Nd5 (19.d3!?=) 19...Ne6+= 20.d3 Nc5 21.Bc2 (21.Qd1 Bd5 22.cd5 Nb3 23.Qb3 Bh6+=) 21...Nd6 (21...Bd5 22.cd5 Qd5 23.Ba3-/+) 22.Nd2 (22.Nb4 a5 23.ba6 ba6+=) 22...f5 (22...Bd5 23.cd5 a6 24.b6+=) 23.Nb3 (23.Qf3 e4 24.de4 Nce4 25.Ne4 A) worse is 25...Re4 26.Be4 (worse is 26.Re4 Ne4 27.Bd3 Bd5 28.cd5 Qd5+=) 26...fe4 27.Nf6 Kh8 28.Ne4 Nc4 29.Rab1+/-; B) 25...Ne4?! 26.Qd3+=; C) 25...fe4 26.Nf6 Bf6 27.Qf6 Nf5 28.Be4 Qd8 29.Qd8 Red8 (worse is 29...Rcd8 30.c5+-) 30.Bb7 Rc4+/-) 23...Nb3 (23...e4 24.Nc5 Rc5 25.Ba3 ed3 26.Qd3=) 24.Bb3 Bd5 25.cd5 Rc7 (25...e4 26.Rac1+=) 26.a5 Bf6 (26...b6!?+=) 27.b6= Rc5 28.Ba4 Nb5 29.Ba3 Rd5 30.Bb3 ab6 31.ab6 (31.Qf3 Nc3 32.ab6 Re6+=) 31...Kg7 (31...Re6 32.Qf3 Nc3 33.Bc4=) 32.Bd5 Qd5 33.Bb4 (33.Qc2 e4+=) 33...e4 (33...Re6 34.Ba5+=) 34.Qa2 (34.Ra5 e3 35.Rc1 Qd7+/-) 34...Qd7 (34...Qa2 35.Ra2 Re6 36.Kf1=) 35.Rad1 (35.Qc2 e3+=) 35...e3 36.f3 (36.Qc2 Bh4 37.g3 f4=) 36...Re6 (36...Bd8 37.Bc5=) 37.Rc1 (37.Qa5 Bh4 38.g3 Bf6=) 37...Rb6+= 38.Qa8 Threatening mate... how? 38...Rc6?? (better is 38...Be7 39.Be7 Qe7+=) 39.Rc6 (39.Qf8) 39...bc6 (39...Be7 40.Be7 Qe7+-) 40.Ra1 (40.Qf8) 40...g5 41.Ra6 Exerts pressure on the backward pawn 41...Be7 (41...e2!? 42.Qf8 Kg6 43.Qg8 Bg7+=) 42.Be7+= Qe7 43.Qc6 (43.Rc6 e2 44.Qh8 Kh8 45.Rc8 Kg7 46.Rg8 Kg8 47.h3 e1Q 48.Kh2 Q7e5 49.f4 Qf4 50.g3 Qfg3) 43...Nc7 With the decisive threat e2 44.Qd6 (44.Ra1 f4+=) 44...Kf7= 45.Qe7 Ke7 46.Rh6 Ne6 47.Rh7 Kd6 48.Ra7 Nf4 49.Ra3 Kc5 (49...Ke5+=) 50.Rb3 (50.Ra5!? Kb4 51.Rf5 Nd3 52.Kf1= (52.Rg5?? e2 53.Re5 Ne5–+)) 50...Ne2= 51.Kf1 Nc1 52.Rb8 Nd3 53.g3 (53.Rg8 Kc4 54.Rg5 Kc3+=) 53...Ne5+= 54.Rf8 d3 55.Rf5 Kd4 (55...Kd6 56.h4 (56.Rg5?? Nf3 57.Rg6 Kd5–+) 56...Ke6 57.Rf8 (57.Rg5 e2 58.Kf2 Nf3–+) 57...gh4 58.gh4+=) 56.h4 (56.h3 g4 57.fg4 Nc4+=) 56...gh4 (56...Nc4 57.Rg5 (57.hg5?? d2 58.Ke2 Nb2 59.Rf4 Kc3 60.Ke3 d1Q–+) 57...Nd2 58.Kg2–+) 57.gh4= Nc4 58.Rf8 Kc3 (better is 58...Na3+=) 59.h5?? (better is 59.Ke1=) 59...Kc2 60.Rd8 Nd2?? (60...Kd2 61.Re8 Nd6+=) 61.Kg2+= e2 (61...Nb3 62.h6 e2 63.h7=) 62.Re8= Kd1 63.h6 Nf3?? (63...e1Q 64.Re1 Ke1+-) 64.h7 (better is 64.Kf3 d2 65.Re2+-) 64...Nh4+= 65.Kf2 Ng6 66.Re6 Nh8 67.Ra6?? (better is 67.Re3 Kd2 68.Re8-/+) ½–½. Riedel,F – Rasch,Holger, Hessenliga, 1995.

6.d4 Nc6

7.de5 Be7 8.Nf3 Bf5 9.Bb5 a6 10.Nd4 Qc8 11.Ba4 Bg4 12.Nc6 Bd1 13.Na7 Qd7 14.Bd7 Kd7 15.Kd1 fe5 +/-.

7.de5 fe5

8.b5 Qb6

9.Nc3 Bc5 10.Qh5 g6 11.Qe2=.

9.Qd5 Nf6= 10.Qd2 Ne4 11.Qe2 Bc5 12.Qe4 Bf2 13.Kd1 Bg1 14.Nd2=.

8.Bb5 Bd6

9.Bc6 bc6 10.Be5 Qe7 11.f4 a5+=.

9.Nf3 Bg4 10.0-0 Nf6 11.c4 dc4 12.Nbd2 c3 13.Bc3+=.

9.Nf3 Bg4 10.0-0 Nf6 11.c4 d4 12.Re1 0-0 13.c5 Bc7+=.

6.d4 e4

7.Bb5 Nc6 8.c4 (8.Qh5 g6 9.Qe2 a5=) 8...Nge7 (8...Be6 A) 9.Qa4= Qd7 (9...Nge7 10.cd5 Qd5 11.Ne2 Qg5 12.0-0 0-0-0 13.Bc6+/-) 10.cd5 Bd5 11.Nc3 a6 12.Rc1 Nge7 13.Nd5+=; B) 9.cd5 Qd5 (9...Bd5 10.Nc3 a5 11.Nd5 Qd5 12.Qa4 Bd6 13.ba5+=) 10.Nc3 Qg5 11.g3 Rd8 12.Qa4 Bd7 13.Bc6+=; C) 9.Nc3 a5 (9...a6 10.cd5 Bd5 11.Qh5 Bf7 12.Bc6 bc6 13.Qe2+=) 10.cd5 Bd5 11.Nd5 Qd5 12.Qa4 Bd6 13.ba5+=; 8...a6 9.Ba4 (9.Bc6 bc6 10.Nc3 Ne7 11.Nge2 a5 12.ba5 Qa5 13.0-0=) 9...dc4 10.d5 b5 11.dc6 ba4 12.Nd2 Qd5 13.Rc1=) 9.Nc3 (9.cd5 Nd5 10.Qc2 Kf7 11.Bc6 bc6 12.Qc6 Be6 13.Ne2=) 9...f5 (9...dc4 10.Bc4 (10.d5 a6 11.dc6 ab5 12.Qh5 g6 13.cb7+=) 10...Bf5 11.Qb3 (11.d5+= Ne5 12.Qb3 Nc8 13.Bb5=) 11...Qb6 12.Rd1 0-0-0 13.Nce2+/-; 9...a6 10.cd5 ab5 11.dc6 bc6 12.Ne4 Qd5 13.Qf3+=) 10.c5 (10.Nge2 A) 10...dc4 11.Bc4 (11.d5 a6+= 12.Ba4 b5 13.Nb5+=) 11...Bd7 12.Qb3 Qb6 13.Rd1+/-; B) 10...a6 11.Ba4 dc4 12.d5 b5 13.Nb5+=; 10.Qa4 Qd6 11.Nge2 Be6 12.c5 Qb8 13.Bc1+=) 10...g6 (10...a6 11.Ba4 (11.Qa4= f4 12.Bc1 g5 13.h4=) 11...g6 12.Nge2 Bh6 13.Bc1+=) 11.Qd2 (11.Nge2 Bg7+= 12.0-0 0-0 13.Bc1=) 11...Bg7= 12.Nge2 0-0 13.Ba4 (13.0-0 a5=) 13...a6 (13...a5 14.b5 Nb8 15.0-0+=) 14.Bb3 (14.0-0 b5 15.Bb3 Be6=) 14...Be6 (14...a5 15.b5 a4 16.Ba4+= (16.bc6 ab3 17.cb7 Bb7+=)) 15.Na4 (15.0-0 Qc7=) 15...Nc8 (15...Rc8 16.0-0=) 16.Nf4 Bf7 (16...Re8=) 17.g3 (better is 17.0-0!?=) 17...g5+= 18.Ng2 Bh5 19.h4 (19.Nc3 Bf7 (worse is 19...Bd4 20.Nd5 Bb2 21.Qb2+=) 20.Ne2 b6=) 19...Bf3 20.Rh2 f4 (20...g4!?+=) 21.hg5= e3 22.Qd3 (22.Qe3 fe3) 22...ef2-/+ 23.Kf2?? (better is 23.Kf1 fg3 24.Qh7 Kf7 25.Rh4 Qg5 26.Bc1-/+) 23...fg3–+ 24.Kg3 (24.Kg1 gh2 25.Kh1 Qg5–+) 24...Qg5 25.Kh3 (25.Kf2 Be4 26.Ke2 Bd3 27.Kd3 Qg3 28.Ne3 Qh2 29.Bd5 Kh8 30.Rh1–+) 0–1. Huelle,Gunter – Langer,Wolfgang, Leipzig VfB op 4th, 1997.

7.c4 Be6 8.Nc3 dc4 9.Qh5 Bf7 10.Qb5 Qd7 11.Bc4 Bc4 12.Qc4 f5 13.f3 Nf6 14.fe4 Ne4 15.Ne4 fe4 16.Ne2 Nc6 17.d5 Ne7 18.Rd1 (18.Qe4?! Qd5 19.Qd5 Nd5+/-) 18...Rc8 (better is 18...Nf5 19.Qe4 Be7+-) 19.Qe4 g6 (19...Qd6+-) 20.Bh8 Bh6 (20...Kf7+-) 21.d6 (21.d6 b5 22.0-0+-) 1–0. marre (2060) – NN, GameColony.com, 2003.

7.c4 Be6 8.c5 Nc6 9.Nd2 a6 10.Be2 b5 (10...Nge7 11.f3 Nf5 12.fe4=) 11.Nh3 (11.Qb3 Kf7 12.Nh3+=) 11...h6 (11...Bh3 12.gh3 Rb8 13.Rg1=) 12.0-0 (12.Nf4 Bf7+/-) 12...g5 (12...Bh3 13.gh3 f5 14.a4=) 13.f3 (better 13.a4 Rb8 14.ab5 ab5 15.Bg4=) 13...f5? (better 13...e3 14.Nb1 Bh3 15.gh3 Nge7+=) 14.fe4+- fe4 15.Bh5 Kd7 16.Bc3 (better 16.Ne4 Bh3 17.gh3+-) 16...Bh3 17.gh3 Nce7?? (better 17...Nf6=) 18.a4 Kc8? (18...Kc7+-) 19.ab5 Ra7 (19...Bg7 20.Rf7 Rh7 21.Qg4 Kb8+-) 20.b6 Rd7 21.b5 (21.Qe2 Nf6 22.Qa6 Rb7 23.Rf6 Qd7 24.Qa8 Rb8 25.c6 Qb7 26.cb7 Kd7 27.Qb8 Ng6 28.Qc7 Ke8 29.b8Q) 21...Bg7 (21...Nf6 22.Rf6 Kb8 23.Ra6+-) 22.ba6 (22.Qa4 Qb6 23.cb6 Kd8+-) 22...Nf6 (22...Kb8 23.Rf7 Nf6 24.Rg7+-) 23.a7 (better 23.b7 Rb7 24.ab7 Kd7 25.Bg4 Ke8+-) 23...Ra7 (23...Kb7 24.a8R Qa8 25.Ra8 Ra8+-) 24.ba7 Nh5 25.Qh5 (25.a8Q Kd7 26.Ra7 Qc7 27.Qg4 Nf5 28.Qf5 Ke7 29.Rc7) 25...Qe8 26.a8Q Kd7 27.Qae8 (27.Qb7 Ke6 28.Ra6 Qc6 29.Qf7) 27...Re8 28.Ra7 Kd8 29.Ra8 (29.Ba5 Kc8 30.Qe8) 29...Kd7 30.Qe8 Ke6 (30...Kc7 31.Ra7) 31.Ba5 (31.Ra6) 31...Bf6 (31...Bd4 32.Kg2 Bc5 33.Qf7 Kd7 34.Rf6 Bb6 35.Qe6 Kc7 36.Qe7) 32.Ra7 (32.Ra6) 32...g4 (32...Bd4 33.Kg2 Bf6 34.Qd7 Kf7 35.Qe7 Kg6 36.Qf7) 33.Re7! Be7 (33...Be7 34.Qc8 Mate attack) 34.Bd8 (34.Bd8 g3 35.Qe7; 34.Qc8) 1-0. kikacrownz (1900) - VEGETAL (1670), Rated Bullet game, lichess.org, 2014. (=1.a3 f6 2.b4 e5 3.Bb2 c6 4.e4 d5 5.ed5)

7.c4 Be6 8.cd5 Bd5 9.Nc3 f5 10.Rc1 Nf6 11.Nd5 Nd5 12.Bc4 (12.Qa4 Nc6 13.Ba6 Rb8+=) 12...Nc6 13.Qb3 Nb6?? (better 13...Nce7+/-) 14.Bf7+- Kd7 15.Qe6 Kc7 16.d5 (16.d5 Nd5 17.b5+-; 16.Qf5?! Qf6 17.Qf6 gf6+-) 1-0. mordor1 (2100) - Tata190 (1885), Rated Bullet tournament, lichess.org, 2014.

7.c4 f5 8.Nc3 Nf6 9.Qb3 Be6 (9...Bd6 10.Nb5=) 10.cd5+= Nd5? (10...Bf7 11.Nh3+=) 11.Nd5?? (better 11.Bc4 Nb4 12.ab4 Bc4 13.Qc4+-) 11...Bd5 12.Bc4 Bc4 13.Qc4 Nc6 (13...Qd7 14.f3=) 14.Ne2 Qd7 15.Ng3 (15.d5 Ne7 16.Rd1 Ng6+=) 15...Rc8 16.Rc1 (16.Qb5 Ne7 17.Qe5 h5=) 16...Ne7 17.Qb3 Rc1 18.Bc1 Qd4 19.0-0 Qd7 (19...a6 20.Rd1 Qf6 21.f3 ef3 22.Qf3+=) 20.Rd1 Qc6 21.Bb2 (21.b5 Qc8+=) 21...a6 22.a4 (22.Be5 b5=) 22...Qg6 23.Qd5?? (23.Ne2 Qc6 24.b5 ab5 25.ab5+/-) 23…Nd5-+ (23...Nd5 24.Rd5 Qf7 25.Re5 Kd7-+) 0-1. dannysmet (1985) - trajkov (1995), Rated Blitz game, lichess.org, 2020.

7.c4 Nh6 8.Nc3 (8.Qh5 g6 9.Qd5 Qd5 10.cd5 a5 11.ba5 Ra5 12.Nc3 f5+/-) 8...Be6 (8...dc4 9.Qh5 g6 10.Qd5 Qd5 11.Nd5 Kd8 12.Bc4 Nd7+/-) 9.cd5 Bd5 (9...Bg4 10.Be2 Bf5 11.Bb5 Kf7 12.Qe2 a6+/-) 10.Qh5 Bf7 11.Qb5 Qd7 12.Ne4 Be7 (12...Nc6+/-) 13.Qd7 Nd7 14.Rc1 Kd8 15.Bd3 Re8 16.Ne2 Bg6 17.f3 f5 (17...a5 18.b5+/-) 18.Nc5+- (18.Nc5 Bc5 19.dc5+- (19.Rc5?! Nc5 20.dc5 Re7+=)) 1–0. marus1 – Gunn, internet, 2001.

5.ed5 Qd5

6.Nc3 Qd4 7.Nf3 Qf4 8.Be2 Bb4?? (better 8...e4 9.Nd4 Bd6+=) 9.ab4+- Qb4 10.Ba3 Qb6 (10...Qg4 11.0-0 Qf4 12.Bc5+-) 11.Rb1 (11.Ne4 Nh6+-) 11...Qd8 (11...Qa5 12.Bb4 Qc7 13.Ne4+-) 12.Bc4 (12.Ne4!? Qc7+-) 12...Ne7 13.Ne4 Nf5 (13...b5 14.Ne5! fe5 15.Qh5 Ng6 16.Nd6 Kd7 17.Be6 Kc7 18.Bc8 Nd7+-) 14.Nd6 (better 14.g4 b5 15.gf5 bc4 16.Rg1+-) 14...Kf8?? (better 14...Nd6 15.Bb3 Nb5-/+) 15.Nb7+- Ne7 (15...Ke8 16.Nd8 Kd8+-) 16.Nd8 1-0. lebed224 (1605) – vando, Rated Classical game, lichess.org, 2014.

6.Nc3+= Qd7 7.Be2 (7.Qh5 g6 8.Qf3 Qd8 9.Bc4 Nh6 10.Ne4 Bf5+=; 7.Nf3 b5 8.d4 a5 9.ba5 ed4 10.Nd4 Ra5+=; 7.Bd3 Nh6 8.Nf3 Bd6 9.Ne4 a5 10.0-0 b5=; 7.Bc4 Qf5 8.d3 Qg6 9.Qf3 Ne7 10.h3 Nf5=) 7...c5 8.b5 Nh6 9.Nf3 Bd6 10.Bc4 Nf7+=.

6.Nc3+= Qd8 7.Nf3 (7.Bc4 Nh6 8.Qh5 g6 9.Qe2 Bg4 10.f3 Bf5+=; 7.Bd3 Be6 8.Nf3 Bd6 9.0-0 Ne7 10.Qe2 Ng6=) 7...b5 8.d4 ed4 9.Nd4 a5 10.ba5 Ra5+=.

6.Nc3+= Qe6 7.Qh5 (7.Nf3 Nh6 8.Be2 Nf5 9.0-0 Be7 10.d4 0-0+=; 7.Be2 Nd7 8.Nf3 c5 9.bc5 Bc5 10.0-0 Ne7+=; 7.Qe2 Ne7 8.Nf3 Nd5 9.Nd5 cd5 10.d4 e4=; 7.Ne4 a5 8.b5 Bd7 9.b6 c5 10.Qh5 g6=) 7...g6 8.Qe2 Ne7 9.Nf3 Nd5 10.d4 Nf4+=.

6.Nc3+= Qf7 7.d4 (7.Qe2 Be6= 8.Nf3 a5 9.b5 c5 10.Ne4 Nd7=; 7.Nf3 Be6 8.d4 Nd7 9.Qe2 Qh5 10.Ne4 Bg4+=) 7...ed4= 8.Qd4 Qe6 (8...Qe7 9.Be2 (9.Nge2= b5 10.Qh4 a5=) 9...a5 10.b5 Nh6+=) 9.Be2 (9.Nge2 a5 10.b5 Nd7+=) 9...Nh6 (9...a5 10.b5 Ne7+=) 10.Rd1 (10.0-0-0 Be7+=) 10...Be7 (10...Nd7 11.Nf3+=) 11.Nf3 0-0 (11...a5 12.0-0+/-) 12.0-0+/- c5 13.bc5 Nc6 14.Qa4 Nf7 (14...Bc5?? 15.Bc4+-) 15.Rfe1 (15.Bc4 Qg4+/-) 15...Nce5 (15...Bc5 16.Bc4 Qf5+-) 16.Ne4 Kh8 17.Be5 Ne5 18.Nd6 Bd6 19.cd6 (19.Rd6?! Nf3 20.gf3 Qf5=) 19...Bd7 20.Qb3 Qb3 21.cb3 Rae8 22.Ne5 Re5 23.f4 Ra5 (23...Re3 24.Bc4 Re1 25.Re1+-) 24.a4 g6? (24...Rd8+-) 25.Bb5! Bb5 (25...Rb5 26.ab5 Rd8 27.Re7+-) 26.ab5 Rb5 (26...Kg8 27.d7 Kf7+-) 27.d7 (27.d7 Kg7 28.Re8+-) 1–0. dewil – Clay56, ChessWorld.net, 2009.

6.Qh5 A) 6...Qf7 7.Qe2 (7.Qf7 Kf7 8.d4 ed4 9.Bd4 a5 10.c3 Be6=) 7...Bd6 8.d4 Qe7 9.de5 Be5 10.Be5 fe5=; B) 6...g6 7.Qe2 Ne7 8.f4 Nd7 9.Nc3 Qd4 10.g3 ef4=.

5.Qh5 g6

6.Qh4 de4 7.Bc4 Be7 8.Nc3=+.

6.Qh4 de4 7.Qe4 Bf5 8.Qc4 a5 9.Nf3 b5 10.Qb3 a4 11.Qe3 Bh6 12.Qe2!?=.

4.a3 Bd6

5.Bc4 a5!?+= 6.b5 (6.Bg8 Rg8 7.Qh5 Ke7 8.b5 Rh8 9.d4 ed4+=; 6.Qh5 g6 7.Qh3 Qe7 8.Qb3 Nh6 9.b5 Bc5+=) 6...Ne7 7.Qh5 Ng6 8.Nf3 cb5 9.Nh4 Ke7 +/-.

5.Bc4 Qe7 6.Bb3 (6.Nf3 b5 7.Bb3 a5 8.c3 Bc7 9.0-0 f5+=; 6.c3 Bc7 7.d3 d6 8.Nf3 f5 9.0-0 Nf6+=; 6.Nc3 b5 7.Bg8 Rg8 8.Qh5 g6 9.Qe2 a5=; 6.d3 b5 7.Bb3 a5 8.c3 Bc7 9.Nf3 d6+=; 6.Ne2 b5 7.Ba2 a5 8.Ng3 Bc7 9.0-0 d6+=) 6...a5 7.c3 ab4 8.ab4 Ra1 9.Ba1 Bc7+=.

5.Bc4 Nh6 6.Nf3 Bc7 7.Nh4 (7.Nc3 f5+=) 7...d6 (7...d5 8.ed5 cd5 9.Bb5 Nc6 10.Qh5 Nf7 11.0-0=+) 8.Qf3 (8.Qh5 Ke7 9.Be2 Qe8+=) 8...Bd7 (8...Bg4 9.Qd3=) 9.Qh5+= Ke7 10.Nf5 (10.Be2 Qe8+=) 10...Bf5= 11.ef5 d5 12.Be2 Bb6 Black intends d4 13.d3 (13.a4 Qd7=) 13...Qd7 (13...Qe8 14.Qf3=+) 14.g4= d4 15.Nd2 Qd5 (15...Qe8 16.Qh4=) 16.0-0-0 (16.0-0 Kd8+=) 16...Nd7 (16...a5 17.Bf3 Qf7 18.Qf7 Nf7 19.Nc4=+) 17.Qh3 (17.f4 a5=+) 17...c5 (better 17...a5 18.ba5 Ba5-/+) 18.c4?? (better 18.Bf3 Qf7 19.Bb7=) 18...dc3!-+ 19.Bc3 cb4 (better 19...Qa2!? 20.b5 Qa3 21.Bb2 Qa4-+) 20.Bb4-/+ Bc5 21.Bf3 (21.Qf3 Qa2 22.Bc5 Nc5-/+) 21...Qa2 22.Bc5?? (better 22.Nc4 Bb4 23.ab4-+) 22...Nc5 23.Nc4 (23.Bd5 Qd5 24.Nc4-+) 23…Nb3 0-1. fork_me – chessace, Rated Blitz game, 2014.

5.d4 A) 5...Qe7 6.Nd2 (6.Qh5 g6 7.Qf3 ed4 8.Bd4 Be5 9.Be5 Qe5=; 6.Bd3 ed4 7.Bd4 Be5 8.Be5 fe5 9.Nf3 d5+=) 6...ed4 7.Bd4 a5 8.c3 ab4 9.cb4 Bf4+=; B) 5...ed4 6.Bd4 Qe7 7.Nd2 a5 8.c3 ab4 9.cb4 Bf4+=.

5.Bc4 Ne7

6.Qh5+/- g6 7.Qh4 Rf8 8.Qh7 b5 9.Bb3 Bc7 +/-.

6.Qh5+/- Ng6

7.Nf3 b5 8.Nh4+- Ke7 9.Nf5 Kf8+-.

7.Nf3 Qe7 8.Nh4 Kd8 9.Ng6 Qe8 +/-.

7.h4 b5 8.Bb3 a5 9.ba5 Bc5=.

7.h4 Bc7 8.Nc3 b5 9.Ba2 Na6 (9...Bb6!?+=) 10.Nge2+/- Qe7 11.Ng3 d6 12.Nf5 Bf5? (better is 12...Qf8+/-) 13.ef5+- (13.Qf5?! Nf4 14.g3 g6+=) 13...0-0-0 14.fg6 hg6 15.Qg6 d5 16.Bb3 Rh6 17.Qg4 Kb8 18.a4 ba4 19.Ra4 Kb7 (19...f5 20.Qf5 Nb4 21.Qg4+-) 20.b5 d4 (20...cb5 21.Bd5 Kb8 22.Ra6 f5 23.Ra7 Ka7 (23...fg4?? 24.Ra8) 24.Nb5 Kb6+-) 21.Ba3 Bd6 (21...c5 22.Nd5 Qd7 23.ba6 Kb8 24.Qd7 Rd7 25.Bc5+-) 22.bc6 Kc6 (22...Ka8 23.Nd5 f5 24.Qf5 Rf8 25.Ne7 Rf5 26.Nf5 Ba3 27.Ra6 Kb8 28.Nh6 Bc5+-) 23.Bd6 Rd6 24.Qc8 Qc7 25.Ra6 Kc5 26.Qc7 (26.Qc7 Rc6 27.Qc6 Kb4 28.Nd5) 1–0. Trkn – guest1064, ICC, 2004.

7.h4 Be7 8.Nc3 d6 (8...b5 9.Bb3= a5=) 9.Nge2 (9.Nf3 b5=) 9...Nd7 (9...b5 10.Bb3=) 10.f4 (10.Be6 Nb6 11.Bf5 Kf7+=) 10...ef4 (10...Nb6 11.Bb3 f5 12.ef5 Bf5 13.Qf5+-) 11.Nf4+= Ndf8 12.Nce2 Bd7?? (better is 12...b5 13.Bb3 Qd7+=) 13.Ng6+- Ng6 14.Nf4 (14.Nf4 Bg4 15.Qg4 Nf4 16.Qf4+-) 1–0. Wolfram,Reinhard – Mennie,Alec Norman, corr 3GMM–47, 1995.

4.a3 Ne7

5.Nf3 d5= 6.Nc3 (6.ed5 Nd5 (6...cd5 7.Be2 Bf5 8.d4 e4 9.Nfd2 Nbc6 10.0-0=) A) 7.Nc3 a5 (7...Nc3 8.Bc3 Bd6 9.Bc4 Bg4 10.0-0=) 8.b5 Bg4 9.h3 Bh5 10.Ne4= (10.g4); B) 7.d4 ed4 8.Bd4 Bd6 (8...Qe7 9.Qe2 Qe2 10.Be2) 9.c4 Qe7 10.Qe2=) 6...d4 7.Nb1 (7.Na2 a5 A) 8.Be2 Ng6 (8...Be6 9.0-0 ab4 10.Nb4=) 9.0-0 Na6 10.Ba6+= (10.ba5); B) 8.Nc1 Be6 9.Nd3 Nd7 10.c3=) 7...Bg4 (7...Be6 8.Be2= A) 8...a5 9.b5 (9.0-0 Na6 10.Re1+=) 9...Ng6 (9...Nd7 10.c3) 10.0-0=; B) 8...Nc8 9.0-0 a5 10.b5+=; 7...Ng6 8.Bc4 Qd7 (8...a5 9.ba5 Qa5 10.0-0) 9.0-0 b5 10.Bb3=) 8.Bc4 (8.Be2 Be6 9.0-0 Qd6 10.Bc1=) 8...Nd7 (8...Nc8 A) 9.Ba2= d3 10.0-0= (10.cd3); B) 9.0-0 Nd6 10.Bd3= (10.Be2)) 9.d3 (better is 9.Ng5! fg5 10.Qg4+=) 9...Nb6= 10.Bb3 Ng6 11.h3 Bf3 12.Qf3 a5 13.ba5 Na4 14.Ba4 (14.Bc1 Qa5 15.Bd2 Qc7=) 14...Qa5 15.Kf1 (better is 15.c3!? Qa4 16.cd4+=) 15...Qa4-/+ 16.Qd1 Bd6 17.g3 0-0 18.Kg2 c5 (18...f5 19.ef5 Rf5 20.Nd2-/+) 19.c3+= c4 (19...Qd7!?+=) 20.Qa4 Ra4 21.Rd1 cd3 22.Rd3 Bc5 23.Nd2 Rfa8 24.cd4 ed4 (24...Bd4 25.Rb1=) 25.Nf3 (25.Nb3!? b6 26.f4+= (worse is 26.Nd4 Rd8-/+)) 25...Ne5+= 26.Ne5 fe5 27.Rb3 b6 28.Rb1 (28.f4 Kf7+=) 28...Kf7 29.h4 Ke6 30.f4 h6 (30...R8a6 31.Kf2+=) 31.Bc1 R8a6 (31...Rc4 32.Kf3+=) 32.f5 (32.h5 Rc4=) 32...Kd6 33.h5 (33.Rd3 Rc4+=) 33...Kc6 34.f6 Ba3?? (better is 34...gf6 35.Bh6 Ra3 (worse is 35...Ba3 36.Bg7+-) 36.Ra3 Ra3= (worse is 36...Ba3 37.Bg7+/-)) 35.fg7+- Ra8 36.Ba3 (36.Ba3 R4a6 37.Bf8+-) 1–0. urko – TeaCzar, ChessWorld.net, 2009.

5.d4 ed4

6.Bd4 d5

7.Nc3 A) 7...Be6 A1) 8.Qe2 Kf7 (8...de4 9.Rd1 Nf5 10.Bc5 Nd7 11.Ne4 Kf7+/-; 8...Qd7 9.Rd1 a5 10.b5 Ng6 11.Na4 Ba3+/-; 8...Qc8 9.Rd1 de4 10.Ne4 Nf5 11.Nf3 Na6+/-; 8...a5 9.ed5 Bf5 10.b5 Kf7 11.g4 Bc8+=) 9.Rd1 a5 10.Qh5 Kg8 11.b5 Qc8=; A2) 8.Be2 a5 (8...f5 9.ed5 Nd5 10.Bh5 Bf7 11.Bf7 Kf7+/-; 8...de4 9.Ne4 Nf5 10.Bh5 Bf7 11.Bf7 Kf7+=; 8...Nd7 9.Nf3 de4 10.Ne4 Nf5 11.0-0 Be7+=; 8...Kf7 9.Nf3 de4 10.Ne4 Nf5 11.0-0 Be7+=) 9.Bh5 Ng6 10.ed5 Bd5 11.Qe2 Kf7=; A3) 8.Nf3 de4 (8...a5 9.b5 de4 10.Ne4 Nf5 11.Be2 Be7=) 9.Ne4 Nf5 10.c4 Be7 11.Be2 a5=; A4) 8.ed5 Nd5 9.Qe2 Qe7 10.Nd5 Bd5 11.Qe7 Be7+=; A5) 8.Qh5 g6 (8...Bf7 9.Qe2 de4 10.Rd1 Nd5 11.Ne4 Be7+-; 8...Kd7 9.ed5 Nd5 10.Nd5 Bd5 11.c4 Qe7+=) 9.Qe2 Kf7 10.Nf3 Bg7 11.0-0-0 Re8+=; B) 7...de4 8.Ne4 Bf5 (8...Qd5 9.Qd3 Nf5 10.Bc3 Qe6 11.0-0-0 Nd7+=; 8...Nd5 9.Qh5 g6 10.Qe2 Kf7 11.c4 Nf4+=) 9.f3 Ng6 10.Qd3 Qe7 11.Rd1 a5=; C) 7...a5 C1) 8.Qh5 Ng6 (8...g6 9.Qh4 Bg7 10.Rd1 ab4 11.ab4 0-0+=) 9.ed5 ab4 10.Bd3 f5 11.Qe2 Be7-/+; C2) 8.ed5 ab4 (8...Nd5 9.Qh5 g6 10.Qe2 Kf7 11.Nd5 cd5+=; 8...Bf5 9.ba5 Nd5 10.Rb1 Qa5 11.Qh5 Bg6=) 9.ab4 Ra1 10.Qa1 Nd5 11.Nd5 Qd5=; C3) 8.Nf3 ab4 (8...Bg4 9.b5 de4 10.Ne4 Nf5 11.Bb2 Nd6=; 8...de4 9.Ne4 ab4 10.ab4 Ra1 11.Qa1 Bg4=) 9.ab4 Ra1 10.Qa1 Ng6 11.Qa7 de4=; C4) 8.Nge2 ab4 (8...de4 9.Ne4 Nf5 10.Bc5 Bc5 11.Qd8 Kd8=; 8...Ng6 9.ed5 ab4 10.ab4 Ra1 11.Qa1 Bb4=; 8...b5 9.Nf4 de4 10.Ne4 Bf5 11.Nc5 Bc2=; 8...b6 9.ed5 ab4 10.ab4 Ra1 11.Qa1 Nd5=) 9.ab4 Ra1 10.Qa1 de4 11.Ne4 Nf5+=; C5) 8.b5 de4 (8...Be6 9.Nf3 de4 10.Ne4 Nf5 11.c3 Nd7=) 9.Ne4 Qd5 10.Nc3 Qe6 11.Qe2 Nf5=.

7.Nd2 A) 7...Be6 A1) 8.Ngf3 de4 (8...a5 9.b5 de4 10.Ne4 Nf5 11.Be2 Be7=; 8...Ng6 9.ed5 Bd5 10.c4 Be6 11.Be3 Be7+=; 8...b6 9.Bd3 de4 10.Ne4 Nf5 11.Ng3 Nd4+=) 9.Ne4 Nf5 10.c4 a5 11.b5 cb5=; A2) 8.Be2 a5 (8...de4 9.Ne4 Nf5 10.Bh5 Bf7 11.Bf7 Kf7+=; 8...Ng6 9.Ngf3 a5 10.b5 de4 11.Ne4 Nf4+=; 8...f5 9.ed5 Nd5 10.Ngf3 a5 11.c4 Nf4+=; 8...Kf7 9.Ngf3 de4 10.Ne4 Nf5 11.0-0 Be7+=) 9.b5 de4 10.Ne4 Nf5 11.Nf3 Bd5=; A3) 8.Ne2 Ng6 (8...de4 9.Ne4 Nf5 10.Bc5 Bd5 11.Bf8 Be4+=; 8...Qc7 9.ed5 Nd5 10.c4 Nb6 11.Qc2 N8d7=; 8...Nd7 9.Nf4 Bf7 10.ed5 Nd5 11.Qe2 Qe7+=) 9.Be3 a5 10.Nd4 Bf7 11.ed5 ab4=; A4) 8.c3 a5 (8...de4 9.Ne4 Nf5 10.Nf3 Bd5 11.Bd3 Be7+=; 8...Nd7 9.Bd3 Qc7 10.Ngf3 c5 11.bc5 Nc5+=; 8...Ng6 9.Ngf3 Qe7 10.Bc5 Qc7 11.Be3 de4+=) 9.Bd3 ab4 10.ab4 Ra1 11.Qa1 Ng6=; A5) 8.c4 de4 9.Ne4 Nf5 10.Bc3 Nd6 11.Qh5 Bf7+=; B) 7...a5 B1) 8.Qh5 Ng6 (8...g6 9.Qh4 Bg7 10.Ngf3 0-0 11.Rd1 b5=) 9.ed5 ab4 10.ab4 Ra1 11.Ba1 Bb4+=; B2) 8.Ngf3 de4 (8...ab4 9.ab4 Ra1 10.Qa1 Bg4 11.e5 Nf5+=; 8...Bg4 9.h3 Be6 10.Bd3 Ng6 11.e5 Nf4=; 8...Be6 9.Bd3 Ng6 10.ba5 Nf4 11.0-0 Ra5=; 8...b5 9.Bd3 de4 10.Be4 Nf5 11.c3 Bd6+=) 9.Ne4 ab4 10.ab4 Ra1 11.Qa1 Bg4=; B3) 8.Ne2 ab4 (8...de4 9.Bb6 Qd5 10.Ba5 Bg4 11.h3 Bh5=; 8...b6 9.Nf4 ab4 10.ab4 Ra1 11.Ba1 de4+=; 8...b5 9.Nf4 de4 10.Ne4 Bf5 11.Nc5 Bc2=; 8...Ng6 9.c3 ab4 10.ab4 Ra1 11.Qa1 Bd6=) 9.ab4 Ra1 10.Qa1 de4 11.Ne4 Nf5+=; B4) 8.c3 de4 (8...ab4 9.ab4 Ra1 10.Qa1 de4 11.Qa7 e3=; 8...Be6 9.Bd3 ab4 10.ab4 Ra1 11.Qa1 Ng6=; 8...Ng6 9.Ngf3 ab4 10.ab4 Ra1 11.Qa1 Nf4=; 8...Nd7 9.Qh5 g6 10.Qe2 Bg7 11.ed5 cd5=) 9.Ne4 ab4 10.ab4 Ra1 11.Qa1 Nf5=; B5) 8.b5 de4 (8...Be6 9.Ngf3 de4 10.Ne4 Nf5 11.c3 Nd7=; 8...Ng6 9.ed5 Qd5 10.Ngf3 Qe6 11.Be3 Bc5=; 8...Nd7 9.Qh5 g6 10.Qh4 Bg7 11.Ngf3 c5+=; 8...cb5 9.Bb5 Kf7 10.Qh5 g6 11.Qh4 Bg7+=) 9.Ne4 Qd5 10.Nc3 Qe6 11.Qe2 Nf5=; C) 7...Ng6 C1) 8.Qe2 Be7 (8...de4 9.Qe4 Qe7 10.c3 Bf5 11.Qe7 Be7=; 8...a5 9.ed5 Be7 10.Nc4 Nf4 11.Qd2 Nd5+=; 8...Kf7 9.ed5 cd5 10.Qh5 Nc6 11.Nb3 a5=; 8...Be6 9.Qe3 Kf7 10.Ba7 Bd6 11.Ngf3 Bf4+=) 9.Qe3 a5 10.ba5 Qa5 11.Bb6 Qa4=; C2) 8.ed5 a5 (8...Qd5 9.Ngf3 Qe6 10.Be3 Nf4 11.Nd4 Qe5+=; 8...Nf4 9.c4 cd5 10.Be3 Qe7 11.Qf3 Ng2+=; 8...Qe7 9.Be3 cd5 10.Nb3 Qe4 11.Nf3 Ne5+=) 9.Qh5 ab4 10.ab4 Ra1 11.Ba1 Bb4+=; C3) 8.Qf3 a5 9.c3 ab4 10.cb4 Be6 11.Qe3 Kf7=; C4) 8.Rb1 de4 (8...a5 9.ed5 ab4 10.ab4 Nf4 11.c4 cd5+=; 8...Be6 9.Ngf3 de4 10.Ne4 a5 11.Qe2 Qc8+=; 8...Nf4 9.Be3 Bd6 10.Ne2 Ne2 11.Be2 Be5+=; 8...Qe7 9.Qe2 Be6 10.Qe3 a5 11.Bc5 Qd7+=) 9.Ne4 a5 10.c3 ab4 11.ab4 Be6=; C5) 8.Ngf3 a5 (8...de4 9.Ne4 Bg4 10.c3 f5 11.Ng3 Qe7+=; 8...Nf4 9.Be3 de4 10.Bf4 ef3 11.Qf3 Qe7+=) 9.c3 Nf4 10.Be3 Bd6 11.g3 ab4=; D) 7...Nd7 D1) 8.Qe2 a5 (8...Kf7 9.Rd1 a5 10.b5 Ng6 11.ed5 cd5+=; 8...Qc7 9.ed5 cd5 10.c4 a5 11.b5 b6+=; 8...Nb6 9.Rd1 a5 10.Qh5 Ng6 11.ba5 Ra5+=; 8...Ne5 9.Be5 fe5 10.ed5 Qd5 11.Ngf3 Ng6+/-) 9.ed5 cd5 10.b5 Kf7 11.Qf3 Qc7=; D2) 8.Qh5 g6 9.Qe2 Bg7 10.ed5 cd5 11.Ngf3 0-0=; D3) 8.Ngf3 a5 (8...de4 9.Ne4 Nf5 10.Bb2 Be7 11.Bc4 Nb6+=; 8...b6 9.Bd3 c5 10.Bb2 Ng6 11.0-0 Nf4+/-; 8...f5 9.Ng5 Nf6 10.Bf6 gf6 11.Qh5 Kd7+/-) 9.Qe2 ab4 10.ab4 Ra1 11.Ba1 Kf7=; D4) 8.ed5 Nd5 9.Qh5 g6 10.Qe2 Kf7 11.Ne4 Bh6+=; D5) 8.Bd3 a5 (8...c5 9.bc5 Nc6 10.ed5 Nd4 11.Qh5 g6+=) 9.Ngf3 Ng6 10.ed5 ab4 11.0-0 cd5+=; E) 7...de4 8.Ne4 Qd5 (8...Bf5 9.f3 Ng6 10.Qd3 Qe7 11.Rd1 a5=; 8...Nd5 9.Qh5 g6 10.Qe2 Kf7 11.Rd1 Qc7+/-) 9.f3 Nf5 10.Bf2 a5 11.c3 Nd6=.

7.ed5 Qd5 A) 8.Nf3 a5 (8...Nf5 9.Qe2 Qe6 10.Nbd2 Qe2 11.Be2 Nd4=; 8...Bg4 9.Nbd2 Nf5 10.Bb2 Qe6 11.Qe2 Qe2+=; 8...Qd6 9.Bd3 a5 10.ba5 Bg4 11.Nbd2 Ra5+=; 8...Ng6 9.Nc3 Qe6 10.Be3 a5 11.Nd4 Qe5+=) 9.c4 Qe6 10.Be2 ab4 11.0-0 ba3=; B) 8.c4 Qe6 (8...Qe4 9.Ne2 Nf5 10.Nd2 Qe6 11.Bc3 Be7=; 8...Qd7 9.Be2 Nf5 10.Bh5 Kd8 11.Ne2 Nd4=) 9.Qe2 Nf5 10.Nf3 Nd4 11.Nd4 Qe2=; C) 8.c3 Qe6 (8...Nf5 9.Nf3 Bd6 10.Nbd2 Nd4 11.Nd4 b5=; 8...Bf5 9.Nf3 a5 10.Be2 ab4 11.cb4 Bb1+=; 8...a5 9.Nd2 ab4 10.ab4 Ra1 11.Qa1 Nf5=; 8...Nd7 9.Nf3 Nf5 10.Bd3 Nd4 11.cd4 Qe6=) 9.Qe2 Nf5 10.Nf3 a5 11.Ra2 ab4+=; D) 8.Nc3 Qe6 9.Be2 Nf5 10.Nf3 Nd4 11.Nd4 Qe5+=.

7.ed5 Nd5 8.Nc3 (8.Qh5 g6 9.Qh4 Be7 10.c4 f5 11.Qh6 Nf6=; 8.c4 Nf4 (8...Qe7 9.Ne2 Nc7 10.Nd2 Nd7 11.c5 b6=) 9.Nc3 Bf5 10.Nf3 a5 11.c5 Nd7=; 8.Qe2 Kf7 (8...Be7 9.Nf3 0-0 10.Qd2 b5 11.c4 Re8=; 8...Qe7 9.Nc3 Nc3 10.Bc3 Be6 11.Nf3 Nd7=) 9.Qh5 g6 10.Qh4 Bg7 11.c4 Ne7=; 8.Qd2 c5 (8...Be6 9.c4 Nb6 10.Qe3 Kf7 11.Nd2 Bd6=; 8...Qe7 9.Be2 Bf5 10.Nf3 Qe4 11.c4 Nb6+- 1.53; 8...Bf5 9.c4 Qe7 10.Be2 Nb6 11.c5 Nc4=; 8...Bd6 9.c4 Qe7 10.Qe2 Nf4 11.Qe7 Be7=) 9.Bb5 Bd7 10.Qe2 Qe7 11.Bc5 Qe2=) 8...Qe7 (8...Nc3 9.Bc3 Qe7 10.Qe2 Be6 11.Nf3 Nd7=; 8...Be7 9.Qh5 g6 10.Qh4 a5 11.Nd5 Qd5=; 8...Nf4 9.Be3 Qc7 10.Nge2 Ng6 11.Nd4 a5+=; 8...Be6 9.Qe2 Qe7 10.Nd5 Bd5 11.Qe7 Be7+=) 9.Be2 (9.Qe2 Nc3 10.Bc3 Be6 (10...Bf5= 11.0-0-0 a5+=) 11.Nf3 Nd7=) 9...Nf4 10.g3 (10.Kf1 a5 11.b5 Be6=) 10...Ne2 11.Nge2 Bh3 12.Bc5 Qd7 13.Bf8 Rf8 14.Nf4 Bg4 15.f3 (15.Qd7 Nd7 16.h3 Bf3=) 15...Qd1+= 16.Nd1 (16.Kd1? Bf3 17.Kd2 Bh1–+) 16...Bf3 17.0-0 Bg4 18.Ne3 Bc8 (18...Bd7 19.Nc4 b5 20.Nd6 Kd8 21.Rfe1=) 19.Nc4= g5 (19...Kf7 20.Nd6 Ke7 21.Rad1=) 20.Rfe1 Kf7 21.Nd6 Kg8 22.Ne6 Be6 23.Re6 b6 24.Rd1 Nd7 (24...g4 25.Ne8 Nd7 26.Nc7=) 25.Ne4+= Rae8 26.Rc6 Re4 27.Rd7 Rf7 28.Rc8 Kg7 29.Rcc7 Rd7 30.Rd7 Kg6 31.Ra7 Re1 32.Kf2 Rh1 33.Kg2 Rc1 34.Rc7 ½–½. Rosner,Dirk – Van Esbroeck,Jeff, email SOK–99–E006B, 1999.

7.Qh5 A) 7...g6 A1) 8.Qe2 Kf7 (8...Bg7 9.Nc3 0-0 10.Qd2 Re8 11.0-0-0 a5=) 9.Nf3 a5 10.Qd1 Bg7 11.Nc3 Re8=; A2) 8.Qf3 Bg7 (8...Nd7 9.Nc3 a5 10.Rd1 ab4 11.ab4 Bg7+=) 9.ed5 Qd5 10.Qd5 Nd5 11.c4 Nf4=; A3) 8.Qh4 Bg7= (8...Nd7 9.Nc3 Bg7 10.Rd1 b6 11.ed5 cd5+=) 9.Nc3 Nd7 10.Rd1 b6 11.ed5 cd5+=; B) 7...Ng6 8.Nc3 (8.ed5 Qd5 9.Qd5 cd5 10.Nc3 Nc6 11.Rd1 Be6=) 8...de4 9.Rd1 Qe7 10.Bc5 Qe5 11.Qe5 Ne5=.

6.Qh5 g6

7.Qh4 Bg7 8.Bd4 d5 9.Nc3 0-0 10.Nf3 de4 11.Bc4 (11.Ne4 Nf5 12.Qf4 Nd4–+; 11.Qe4?! Re8 12.0-0-0 Nd5=) 11...Kh8 12.Qe4 (12.Ne4? Nf5 13.Qf4 Bh6 (13...Nd4?! 14.0-0-0-/+) 14.Bf6 Qf6 (14...Rf6?! 15.Qe5 Nd7 16.Rd1-/+) 15.Nf6 Bf4–+) 12...Nf5 13.0-0-0 Nd6 14.Qd3 (better is 14.Qf4!? g5 15.Ng5 Nc4 16.Qe4+/-) 14...Bf5-/+.

7.Qh4 Bg7 8.Bd4 d5 9.Nc3 0-0 10.Nf3 Re8 11.0-0-0 (11.Bf6?? Nf5 12.Bd8 Bc3 13.Kd1 Nh4 14.Bh4 Ba1 15.ed5 cd5–+) 11...a5 12.b5 Qd6 13.Kb2 Nd7 14.Be2 c5 15.Be3 f5 16.Bf4 (< 16.ed5 Nb6 17.Bc4 Ned5 18.Bd5 Nd5 19.Rd5 Qd5–+) 16...Qb6 (better is 16...Qf6!? 17.Qf6 A) < 17...Bf6 18.e5 (18.ed5?! Nd5 19.Bc4 Bc3 20.Kc1 N7f6 21.Bd5 Kg7=) 18...Bg7 19.Nd5 Nd5 20.Rd5+/-; B) 17...Nf6=) 17.e5+/- (17.ed5 Nd5 18.Ne5 A) < 18...Be5 19.Be5 Re5 A1) < 20.Rd5 Re2 21.Rhd1 Re4 22.Ne4 fe4=+ (22...Qb5? 23.Ka1 fe4 24.Qe7+-); A2) 20.Nd5+-; B) < 18...Nf4 19.Bc4 Ne6 20.Nd7 Bd7 21.Rd7+/-; C) 18...Nc3 19.Bc4 Nd5 20.Rd5 Ne5 21.Be5 Be6= (< 21...Be5 22.Re5 Be6 23.Qf6+-)) 17...d4?? (17...Nf8 18.Bg5 Qc7 19.Be7 Qe7 20.Qe7 Re7 21.Nd5 Re8+-) 18.Bc4+-.

7.Qh4 Bg7 8.Bd4 d5 9.Bf6 Nf5 10.Bd8 Nh4 11.Bh4 Ba1 12.ed5 cd5=+.

4.b5 Bc5

5.a4 d5 A) 6.d4 A1) 6...Bd4 7.Bd4 ed4 8.Qd4 de4 9.Qe4 Ne7 10.Bc4=; A2) 6...Qa5 7.Qd2 (7.Bc3 Bb4 8.Bb4 Qb4 9.c3 Qb2 10.Ra3=) 7...Qd2 8.Nd2 ed4 9.ed5 cd5 10.Ngf3+=; A3) 6...ed4 7.Bd4 Bd4 8.Qd4 de4 9.Qe4 Ne7 10.Bc4=; B) 6.ed5 cd5 7.d4 ed4 (7...Bb4 8.c3 Bd6 9.de5 Be5 10.Nf3=) 8.Bd4 Bd4 9.Qd4= Ne7 10.Bd3=.

5.a4 d6 A) 6.Nf3 A1) 6...f5 7.ef5 (7.d4 ed4 8.Bd4 Bd4 9.Qd4 fe4 10.Qe4=) 7...Bf5 8.d4 ed4 9.Nd4 Bd4 10.Bd4=; A2) 6...Bg4 7.Be2 (7.h3 Bh5 8.Be2 Bg6 9.Nc3 Bb4 10.Bd3=) 7...Ne7 8.d4 Bf3 9.Bf3 Qa5 10.Bc3=; B) 6.d4 Qa5 (6...Bd4 7.Bd4 ed4 8.Qd4 Ne7 9.Nf3 a6 10.Bd3=; 6...ed4 7.Bd4 Bd4 8.Qd4 Ne7 9.Nc3 Qa5 10.Rd1=) 7.Bc3 Bb4 8.Qd2 Bc3 9.Nc3 Ne7 10.Rd1=.

5.a4 Ne7 A) 6.Nf3 d5 7.ed5 (7.d4 ed4 8.Nd4 0-0 9.Nd2 Re8 10.N4b3+=) 7...Nd5 8.Bc4 e4 9.Nh4 0-0 10.Nc3+=; B) 6.d4 Qa5 (6...Bd4 7.Bd4 ed4 8.Qd4 d5 9.Nc3 Qa5 10.Qd2=) 7.Bc3 Bb4 8.Bb4 Qb4 9.c3 Qb2 10.Ra3=; C) 6.Qh5 Ng6 7.Nf3 (7.Nc3 d6 8.Bc4 Qb6 9.Qf3 Qa5 10.Nge2=; 7.Bd3 a6 8.Ne2 d6 9.f4 0-0 10.bc6=) 7...Qe7 8.Nh4 Qf7 9.Ng6 Qg6 10.Qg6+=.

5.d4 ed4?? (5...Bd4 6.Bd4 ed4 7.Qd4= Ne7 8.Nc3 Qa5 9.Qd2 a6 10.bc6=; 5...Qa5 6.Bc3 Bb4 7.Qd2 Bc3 8.Nc3 ed4 9.Qd4 a6 10.ba6=) 6.Bd4 (better is 6.Qh5 g6 7.Qc5 Qa5 8.Kd1+-) 6...Bd4= 7.Qd4 Ne7 8.Nc3 0-0 (8...Qa5!?=) 9.Bc4+= Kh8 10.Nf3 d6 (10...cb5 11.Nb5 d5 12.ed5+=) 11.0-0 (11.Rd1 cb5 12.Nb5 d5 13.ed5 Nf5+/-) 11...Nd7 (11...Bg4 12.Nd2+=) 12.Qd6+/- Nb6 13.Qd8 Rd8 14.Bb3 cb5 (14...Bg4 15.Rfd1+/-) 15.Nb5 Bg4 16.Nh4 (16.Rfd1!? Rd1 17.Rd1+/-) 16...Rd2 (16...Be2 17.Nc7 Rac8+=) 17.h3 (better is 17.a4!? a5 18.f4+=) 17...Be2+= 18.Rfe1? (better is 18.Nf3 Rd7 19.a4 Bf1 20.Kf1=) 18...Bb5–+ 19.Rad1 (19.Nf3 Re2–+) 19...Rd1 20.Rd1 Nc6 (20...g5 21.Nf3–+) 21.g4 (21.Nf5 Be2 22.Rd2 Ba6–+) 21...Rd8 (21...Re8 22.Bd5–+) 22.Rd8 Nd8 23.f4 (23.Nf5 Bd7–+) 23...Nc6 (better is 23...a5!? 24.c3–+) 24.Kf2 Bc4 (24...Ne7 25.Nf3–+) 25.Bc4 (better is 25.Nf5–+) 25...Nc4 26.Nf3 Nb4 0–1. rthurc (2235) – dnenneman (2225), net–chess.com, 2010.

5.a4 Qb6

6.Qe2 cb5 7.ab5 Na6 8.Nc3 Nc7 9.Na4 Qd6 10.f4 +/-.

6.Qe2 d5 7.a5 (7.Nc3 d4 8.Nd1 Bd7 9.c3 cb5 10.ab5=) 7...Qc7 8.f4= d4 9.c3 dc3 10.Nc3=.

6.Qe2 d6 7.a5 (7.Nf3 a6 8.Nc3 ab5 9.ab5 Ra1 10.Ba1=) 7...Qd8 8.c3 cb5 9.Qb5 Bd7 10.Qb7=.

6.Qe2 Ne7 7.Nf3 (7.a5 Qb5 8.Qb5 cb5 9.Bb5 Nbc6= 10.Nf3=; 7.Nc3 d5 8.a5 Qd8 9.Qh5 g6 10.Qf3=) 7...0-0 (7...d5 8.ed5 cd5 9.a5= Qc7 10.d4=; 7...a6 8.Nc3 ab5 9.ab5 Ra1 10.Ba1=) 8.c3 (8.a5 Qb5 9.Qb5 cb5 10.Bb5 d5=) 8...d5+= 9.ed5 (9.d4 Bd6+= 10.Ba3+=) 9...cd5 (9...Nd5 10.a5 Qd8 11.Qc4+=) 10.d4 ed4 11.cd4 Bb4 (11...Bd6 12.a5 Qd8 13.Qc2+=) 12.Nbd2 (12.Bc3 Bd6=) 12...Re8+= 13.Qd3 (13.Ba3 Qd8 14.Kd1 Ba3 15.Ra3 a6+=) 13...Ng6 (better is 13...Bg4-/+) 14.Be2?? (better is 14.Kd1+=) 14...Nf4–+ 15.Qb3 Bd2 (15...Re2 16.Kd1 Qe6 17.Qb4–+) 16.Nd2 Re2 (16...Nc6!? 17.0-0 Nd4 18.Bd4 Ne2 19.Kh1 Qd4 20.Ra2–+) 17.Kd1 Rf2 (better is 17...Re8 18.Qf3 Qd6–+) 18.g3 (18.Qg3 Rg2 19.Qf4 Bg4 20.Kc2–+) 18...Bg4 19.Kc1 Qc7 (19...Nd7 20.gf4 Rc8 21.Kb1 Bf5 22.Ka2 Rd2 23.Rad1 Qd4 24.Rd2 Qd2 25.Qd1–+) 20.Kb1 Rd2 21.gf4 Qf7 (21...Bf3 22.Rf1 Be4 23.Ka2–+) 22.Qc3 (22.Ra3 Bf5 23.Ka1 a6–+) 22...Re2 (22...Bf5 23.Ka2 Rc2 24.Qa3–+) 23.Ka2 (23.Ra3 Qe6 24.Ka1 a6–+) 23...h6 (23...a6!? 24.b6–+) 24.h3 (24.Rae1 Qd7 25.h3 Bh5–+) 24...Bh5 (24...Bf5 25.Rhe1 Re4 26.Rad1–+) 25.Qc8 (25.Rhe1 Qd7 26.Rec1 a6 27.Qc8 Be8 28.Qd7 Bd7–+) 25...Kh7 (25...Re8 26.Qc5–+) 26.Qf5 (26.Rhe1 f5–+) 26...Bg6 27.Qc8 (27.Qg4 Re4–+) 27...Re8 (better is 27...Nc6! 28.Qc6 bc6–+) 28.Qc3 (28.Qc5 b6 29.Qd6 Bd3–+) 28...Nd7 (28...b6 29.Rhf1–+) 29.Rag1 (29.a5 Rac8 30.Qb3 Bc2–+) 29...Nb6 (29...a6 30.Qb4–+) 30.Kb3 (30.a5 Rac8 31.Qb4 Rc4–+) 30...Nc4 (30...Rac8 31.Qg3 Bc2 32.Ka2–+) 31.Bc1 (31.Re1 a6 32.b6 Nb6–+) 31...Rac8 (better is 31...a6 32.b6 Nb6 33.Rh2–+) 32.Qf3 (32.Rh2 Be4–+) 32...Na5 33.Kb4 (33.Ka2 Rc2 34.Ka1–+) 33...Rc4 34.Ka5 (34.Ka3 Qf8 35.Ka2 Ra4 36.Ba3 Re2 37.Ka1 Qa3 38.Qa3 Ra3) 34...Qc7 35.b6 Qb6 0–1. Rutz,Marco – Miclea,Sebastian Marius, GER–ch U10 Ueberlingen, 2000.

6.Qf3 A) 6...d6 7.Bc4 (7.a5 Qd8 8.Bc4 Ne7 9.Nc3 cb5 10.Bb5=; 7.Qg3 Qc7 8.Nf3 d5 9.d4 de4 10.Nfd2=) 7...Ne7 8.Nc3 a6 9.a5 Qd8 10.b6+=; B) 6...d5 7.a5 (7.Nc3 d4 8.a5 Qd8 9.Nd1 Be6 10.Ne2+=; 7.ed5 cd5 8.a5 Qd8 9.Qh5 g6 10.Qe2=; 7.Qg3 Qc7 8.d4 Bd6 9.de5 Be5 10.Be5=) 7...Qd8 8.bc6 de4 9.cb7 Bb7 10.Bb5=; C) 6...Nh6 7.a5 (7.Bc4 d6 8.a5 Qc7 9.Nc3 Bg4 10.Qd3=; 7.Nc3 d6 8.a5 Qc7 9.Bc4 Bg4 10.Qd3=) 7...Qd8 8.Nc3 cb5 9.Bb5 Nc6 10.Nd5=; D) 6...Ne7 7.a5 Qd8 8.Qh5 g6 9.Qh4 0-0 10.f4=.

6.Qh5 A) 6...g6 7.Qe2 (7.Qf3 d5 8.ed5 cd5= 9.a5 Qd8 10.d4=) 7...a6 8.Nc3 d6 9.a5 Qd8 10.b6=; B) 6...Kd8 7.Qf7 Bf2 8.Kd1 Bg1 9.Qf8 Kc7 10.Qg7=.

5.Qh5 g6

6.Qh4 Qb6 7.Nc3+= Bf2?? 8.Qf2+- c5 9.Nd5 Qa5 10.Qc5 b6 11.Nf6! Nf6 12.Qe5 Kf7 13.Qf6 Ke8 14.Qh8 Ke7 15.Bf6 Kd6 16.Be5 Ke7 17.Qh7 Ke6 18.Qg6 Ke5 19.Nf3 Kf4 20.Qf5# 1–0. Woelfelschneider,Peter – Krahl,Wolfgang, corr TKM/A004, 1999.

6.Qh4 h5 7.Nc3 A) 7...d5 8.bc6 bc6 9.ed5 cd5 10.Rb1 Qd6 11.Na4 Bf5=; B) 7...g5 8.Qg3 h4 (8...d5 9.bc6 bc6 10.ed5 h4 11.Qd3 Ne7+=; 8...d6 9.Bc4 Nd7 10.Rb1 Nb6 11.Bb3 Ne7=; 8...a6 9.h4 g4 10.bc6 dc6 11.Bc4 b5=) 9.Qd3 d6 10.Na4 Nd7 11.Be2 cb5=; C) 7...a6 C1) 8.Na4 Ba7 (8...Bb4 9.b6 g5 10.Qg3 d5 11.Qb3 Ba5=; 8...Be7 9.Qg3 g5 10.bc6 dc6 11.Qd3 Qd3=) 9.Qg3 Ne7 10.bc6 dc6 11.Nc3 Be6=; C2) 8.Qg3 Ne7 9.bc6 dc6 10.Be2 b5 11.a4 b4=; C3) 8.bc6 dc6 9.Bc4 b5 10.Bb3 g5 11.Qg3 h4+=; C4) 8.a4 g5 (8...ab5 9.ab5 Ra1 10.Ba1 g5 11.Qg3 d5=; 8...d5 9.ed5 cd5 10.a5 Be6 11.Qa4 ab5=) 9.Qg3 ab5 10.ab5 Ra1 11.Ba1 d5=.

6.Qh4 h5 7.Bd3 A) 7...a6 A1) 8.bc6 dc6 9.Bc4 b5 10.Be2 g5 11.Qg3 h4-/+; A2) 8.f4 d6 (8...ef4 9.e5 g5 10.Bg6 Kf8 11.Qh3 Kg7+=; 8...g5 9.fg5 fg5 10.Qg3 d6 11.Nf3 ab5+=) 9.fe5 de5 10.Qg3 Ne7 11.Qf3 Qb6-/+; A3) 8.a4 g5 9.Qh3 ab5 10.Be2 d5 11.Bh5 Ke7–+; A4) 8.Qg3 Ne7 (8...Rh6 9.bc6 Nc6 10.Bc4 Nge7 11.Qf3 f5=) 9.ba6 Qb6 10.Nc3 Na6 11.Ba6 Ra6+=; B) 7...g5 8.Qg3 h4 (8...d6 9.h4 Nh6 10.Ba3 Bb6 11.bc6 bc6=) 9.Qf3 d6 10.Bc4 h3 11.bc6 hg2+=; C) 7...Qb6 8.Nc3 (8.a4 g5 9.a5 Qc7 10.Qg3 cb5 11.Bb5 Nc6=) 8...g5 9.Qg3 h4 10.Qf3 Bd4 11.Bc4 d5=; D) 7...d6 8.Qg3 (8.Be2 g5 9.Qg3 h4 10.Qb3 Qb6 11.d4 Bd4+=; 8.Nc3 g5 9.Qg3 h4 10.Qf3 h3 11.Na4 Be6+=) 8...g5 (8...Ne7 9.Nc3 Be6 10.Nge2 h4 11.Qf3 f5=) 9.h4 Be6 10.Nc3 Nd7 11.Be2 g4+=.

6.Qh4 h5 7.f4 d6 (7...ef4 8.Qf4 d5 9.Ne2 g5 10.Qf3 Bg4 11.Qd3 de4=) 8.Nf3 ef4 (8...Bg4 9.Qg3 d5 10.bc6 bc6 11.Nc3 ef4=) 9.d4 g5 10.Qf2 Bb6 11.Bd3 Nh6+=.

6.Qh4 h5 7.Qg3 d5? (better is 7...Rh6= 8.Nf3 (8.Ba3 Ba3 9.Na3 d5 10.bc6 Nc6 11.ed5 Qd5=; 8.Nc3 d5 9.bc6 bc6 10.ed5 cd5 11.Qf3 Be6=) 8...Ne7 9.Ne5 d5 10.Nd3 h4 11.Qf3 de4+/-) 8.Be5!+- h4 (8...fe5 9.Qe5 Double attack (9.Qc3 Decoy)) 9.Qg6 Kd7? (9...Kf8 10.Bf4 Bd6+-) 10.Qg4 Ke8 11.Qg7 Bf2 (11...fe5 12.Qh8 Be6 13.ed5 Qd5 14.Qh4 Bd4+-) 12.Kf2 fe5 13.Qh8 Qg5 (13...Qf6 14.Qf6 Nf6 15.ed5 cd5 16.Nf3+-) 14.Nf3 Qg6 15.Nc3 (15.Qe5 Kd8 16.bc6 bc6 17.ed5 Nf6 18.Qd6 Bd7 19.Qf8 Ne8+-) 15...Bg4 (15...Be6 16.ed5 cd5 17.Qe5+-) 16.ed5 h3 (16...cb5 17.Bb5 Nd7 18.Ne5 Qf6 19.Qf6 Ngf6 20.Rab1+-) 17.Rg1 (better is 17.Ne5 Qf6 18.Qf6 Nf6 19.dc6 bc6 20.bc6 Kd8+-) 17...cd5 (17...Qf7 18.bc6 bc6 19.Qe5 Kf8 20.Qd6 Ne7 21.Re1+-) 18.gh3 Qb6 19.Ke1 Bf3 20.Qg8 Ke7 21.Rg7 Kd6 22.Qf8 Ke6 23.Qf7 Kd6 24.Qe7 1–0. Woelfelschneider,Peter (1795) – Krahl,Wolfgang, O7–004 VCC, 2001.

4.b5 d5

5.a4 Bd6 6.bc6= bc6 7.ed5 cd5 8.Nc3 Ne7 9.Qh5 g6 (9...Kf8 10.Nb5=) 10.Qf3+= 0-0 (10...Nbc6 11.Bb5 Qd7 12.Nd5 Nd5 13.Qd5+=) 11.Nd5+- Nd5?? (better 11...Nec6+-) 12.Bc4 (better 12.Qd5!? Be6 13.Qe6 Kg7+-) 12...Kg7 13.Bd5 (13.Qd5?! Qc7 14.Qd3 Nd7=) 13...Nc6 (13...Bb4 14.c3 (14.Ba8?! Qd2 15.Kf1 Qc2+=) 14...Bg4 15.Qe4+- (15.Ba8 Bf3 16.Nf3 Bd6=+; worse 15.Qg4 Bc3 16.Ba8 Qd2 17.Kf1 Qb2+-)) 14.Bc6 Rb8 15.Bc3 e4 (15...Bf5 16.Be4 Be6 17.Ne2+-) 16.Be4 Re8 17.Ne2 Qe7 (17...Bb4 18.0-0+-) 18.d3 Bb7 (18...Be5 19.0-0+-) 19.0-0 (19.Bb7!? Bb4 20.0-0 Bc3 21.Nc3 Qb7+-) 19...Be4 20.de4 (worse 20.Qe4 Qe4 21.de4 Re4+-) 1–0. Lejel – 2Wps, internet, 2019.

5.a4 de4!? 6.Nc3 Bf5-/+.

5.Nc3 d4=+ 6.Nce2 c5 (6...cb5 7.c3 dc3 8.Bc3=+) 7.Ng3 Be6 8.Qf3 (8.a4 c4=+) 8...g6 (8...c4 9.Be2-/+) 9.h4 Bg7 10.h5 Ne7?? (10...c4 11.a4=+) 11.hg6?? (better 11.h6 0-0 12.hg7 Kg7 13.c3+-) 11...hg6=+ 12.Rh8 Bh8 13.Qa3 b6 (13...Nd7 14.Nf3=+) 14.Qa4 Nd7 15.Bc4 Nf8 16.Nf3 Qd7 17.d3 (17.Qb3 Bc4 18.Qc4 Ne6=) 17...Bc4 (17...a6 18.Qb3=+) 18.Qc4= Qe6 19.Nd2 Nc8 20.Ne2 Nd6 21.Qa4 Qf7 22.Nc4 (22.c3 a6=) 22...Nc4=+ 23.Qc4 Qc4 24.dc4 f5 25.ef5 gf5 26.Ng3 f4 27.Ne4 Nd7 28.f3 (28.Ke2 a6=+) 28...Ke7 29.Ke2 Nf6 30.Rh1 Ne4 31.fe4 Rg8 (31...a6 32.a3 ab5 33.cb5-/+) 32.Kf2 Kf7 33.Bc1 Bf6 34.Bd2 (34.Rh7 Bg7=+) 34...Rh8 (34...a5!?-/+) 35.Rh8= Bh8 36.Kf3 (36.g3 fg3 37.Kg3 Bf6=) 36...Kg6=+ 37.Kg4 Bf6 38.Be1 Bg5 39.Bh4 Bh6?? (better 39...Bh4 40.Kh4 Kh6=) 40.Be7+- Kf7 41.Bd6 Ke6 42.Bb8 Bg7?! (42...f3 43.Kf3 Bg5+-) 43.Ba7 Kd6 44.Bb6 Bf6 45.Ba5 1-0. norba94 (2440) - LuzifersExecutioner (2420), Rated Blitz game, lichess.org, 2016.

5.d3 Qb6 6.c4 Bc5 7.Nc3 Ne7 8.ed5 cd5 9.Qd2 Bb4 10.a3 Ba5 11.Be2 d4 12.Nf3 dc3 13.Bc3 Bc3 14.Qc3 0-0 15.a4 Qc5 16.d4 ed4 17.Qd4 Qb4 18.Nd2 Re8 19.Qe4 Nf5 20.Qe8 Qf8 21.Qf8 Kf8 22.Ne4 Nd7 23.Nd6 1-0. whichofh – Pipistrello, Rated Classical game, lichess.org.

5.d4 Nd7 6.bc6 (6.ed5 Qa5 7.Nd2 cd5+=) 6...bc6 7.Nd2 (7.de5 de4 (worse is 7...Ne5 8.Be5 fe5 9.Qh5 Ke7 10.Qe5 Kf7 11.Qh5 g6 12.Qf3 Kg7 13.Nd2+=) 8.Nd2 Qa5 (worse is 8...Ne5 9.Be5 fe5 10.Qh5 Kd7 11.Ne4+=) 9.ef6 Ngf6=) 7...Bb4 (7...Rb8 8.Rb1 Qa5 9.ed5 cd5 10.a4 ed4 11.Ngf3+=) 8.c3 Ba5 9.Qa4 (9.Bd3 Ne7=) 9...Ne7 (9...ed4 10.cd4 (worse is 10.Qc6 Rb8 11.Nb3 Ne7–+) 10...Ne7 11.Bd3=) 10.de5 (10.Nb3 Bc7 11.Nd2 ed4 12.cd4 de4 13.Ne4 Nb6+=) 10...Ne5 11.Be2 Rb8 12.Nb3 (12.Rb1 de4 13.Ne4 Nd5+=) 12...Bb6 (12...de4 13.Qe4 Qd5 14.Qd5 Nd5 15.Na5 Rb2 16.Nc6+=) 13.Nf3 de4 (13...0-0 14.Rd1+=) 14.Ne5= fe5 15.Rd1 Qc7 16.Qe4 0-0 17.0-0 Nd5 (better is 17...Rf4!? 18.Qc2 Bf5+=) 18.c4+/- Nf4? (better is 18...Bf5 19.Qe5 Qe5 20.Be5 Rbe8 21.cd5 Re5+/-) 19.c5+- (19.Be5?! Ne2 20.Qe2 Bg4 21.Bc7 Be2 22.Bb8 Bd1+/-) 19...Ne2 20.Qe2 Bc5 (20...Qf7 21.cb6 Rb6 22.Qe5+- (22.Be5?! Ba6 23.Qc2 Bf1 24.Kf1 Rb4+-)) 21.Nc5 Ba6 1–0. GuestXBRY – GuestZRFF, freechess.org, 2018.

5.d4 ed4 6.Qd4= Ne7 7.Nd2 Nd7 8.ed5 (8.Ngf3 a6=) 8...Nd5 9.c4 Bc5 (9...Nb4 10.Kd1 Bc5 11.Qe4 Be7 12.Bd4=+) 10.Qe4= Kf7 (10...Ne7 11.Ngf3=+) 11.Qf3 (11.Be2!? Ne7 12.Ngf3=) 11...Re8=+ 12.Be2 Nb4 13.0-0-0 (13.Kf1!?=+) 13...Na2-/+ 14.Kb1 Nb4 15.Ne4 Be7 (15...Bf8 16.c5 Nd5 17.Bc4-+) 16.c5 Qa5?? (16...Kf8 17.Ng5 Bc5 18.Nh7 Kg8 19.Bc4 Nd5 20.bc6 bc6 21.Rd5 Re6+-) 17.Bc4 (17.Ng5 Kf8 18.Nh7 Kg8 19.Bc4 Nd5 20.Bd5 cd5 21.Qd5 Kh7 22.Qh5 Kg8 23.Qe8 Nf8 24.Qe7 Bf5 25.Kc1 Qa2+/-) 17...Nd5? (17...Kf8 18.Ng5 Bc5=) 18.Rd5 (better 18.Ng5 Kf8 19.Nh7 Kg8 20.Rd5+- (20.Bd5?! cd5 21.Qd5 Kh7 22.Qh5 Kg8 23.Qe8 Nf8 24.Qe7 Bf5 25.Kc1 Qa2+-)) 18...cd5?? (18...Kf8 19.Rd7! Qb4+-) 19.Bd5 (better 19.Qh5 Kg8 20.Bd5 Kh8 21.Qe8 Nf8 22.Qe7 Qe1 23.Kc2+-) 19...Kf8 20.Qh5 Qe1 21.Bc1 (better 21.Kc2 Ne5 22.Bc3+-) 21...Qb4 Will c5 fall? 22.Bb2 Qe1 23.Bc1 (better 23.Kc2 Ne5 24.Bc3+-) 23...Qb4 (23...Ne5 24.Qh7 Nf7 25.Bf7 Kf7 26.Qh5 g6 27.Qh7 Ke6 28.Qg6-/+) 24.Bb2= Qe1 25.Bc1 ½-½. pacal56 (2220) - mecker (2255), Rated Blitz game, lichess.org, 2014.

5.d4 de4 6.Qe2 (6.Qh5 g6 7.Qe2 Qa5 8.Nd2 ed4 9.Qe4 Be7 10.Qd4 cb5=) 6...Bf5 (6...Qa5 7.Nd2 ed4 8.Qe4 Ne7 9.Qd4 cb5 10.Qc5=+) 7.g4 (7.de5 Bb4 8.Nd2 Qa5=) 7...Bg6 (7...Be6 8.de5 Bb4 9.c3=+) 8.de5 fe5 9.Nd2 Qd5 (9...Nd7=+) 10.0-0-0 (better 10.c4!? Qe6 11.Bg2=) 10...Qa2-/+ 11.Ne4 Ba3 (11...Nd7!?-/+) 12.Nd6= Kf8?? (better 12...Bd6 13.Rd6 Nd7=) 13.Qf3+- Nf6 (13...Ke7 14.Qa3 Qa3 15.Ba3+-) 14.Qa3 Qa3 15.Ba3 cb5 (15...Ng4 16.Bc4 c5 17.Bc5 Nd7+-) 16.Nb5 Kf7 17.Bc4 Ke8 (17...Nd5 18.Rd5 Kf6+-) 18.Nc7 1–0. DEFFM – GuestZSWB, freechess.org, 2018.

5.Be5? fe5-/+ 6.Qh5 Kd7 (6...Ke7 7.Qe5 Kf7 8.ed5 cd5 9.Nf3 Nf6 10.Ng5–+) 7.Nc3 (better is 7.ed5!? cd5 8.Nf3-/+ Nf6 9.Ne5 Kc7 10.Qf7–+; 7.bc6 Nc6 8.Qf7 Nge7 9.ed5 Nb4 10.Na3–+) 7...d4 8.bc6 (8.Nb1 Qe8 9.Qg5 Nf6–+ 10.Nf3–+; 8.Nd1 Qe8 9.Qe8 Ke8 10.Nf3–+) 8...bc6 (8...Nc6 9.Nd5 Nf6 10.Nf6 Qf6 11.Bc4–+) 9.Na4 (9.Nce2 Qe8 10.Qg5 h6–+) 9...Qf6 (9...Qe8 10.Qg5–+) 10.Nf3 (10.Bc4 Nh6–+) 10...Bd6 11.c3 (11.Bc4 Ne7–+) 11...g6 (11...Qf4 12.cd4 Qe4 13.Kd1 ed4 14.Nc5 Bc5 15.Qc5–+) 12.Qg5 (12.Qg4 Kd8 13.Qg3 Qe7–+) 12...Qg5 13.Ng5 Nf6 14.f4 (14.Bc4 Ba6 15.Bb3 Re8–+) 14...dc3 15.d4 ed4 16.e5 Re8 (better is 16...Ng4 17.Nf7 Be5 18.fe5–+) 17.Be2? (17.0-0-0 Ba3 18.Kc2 Ng4 19.Rd4 Ke7 20.Nh7 Nf2–+) 17...Bb4 (better is 17...Be5!? 18.fe5 Re5 19.Nf3–+) 18.0-0-0 Nd5 19.Rd4 Na6 (19...h6 20.Nf7 Rf8 21.Nh6 Rf4 22.Bg4 Kc7 23.Rf4 Nf4 24.Bc8 Kc8 25.Kc2–+) 20.Kc2 (20.Nh7 Ke7 21.Ba6 Ba6–+) 20...Ke7 21.Rd5 (21.Ba6 Ba6 22.Nh7 Rab8–+) 21...cd5 22.Nc3 Bc3 (better is 22...Bf5!? 23.Kb2 Bc3 24.Kc3 Rac8 25.Kd2 Rc2 26.Ke3 d4 27.Kf3–+) 23.Kc3 h6 24.Nf3 (24.Nh7 Rd8 25.Rd1 Rb8–+) 24...Nc7 (24...Nc5 25.Rd1 Ne4 26.Kd4–+) 25.Rc1 (25.Bd3 Kf7–+) 25...Bg4 0–1. Roczniak,Jan – Lachowicz, Poland, 1980.

5.bc6 bc6

6.Nc3!?+=.

6.ed5 cd5

7.Bb5 Bd7 8.Bd7 Qd7 9.Nf3 Nc6 10.0-0 Bd6 (10...Rb8 11.Qc1-/+) 11.d3 (11.c4!? Nge7 12.Nc3 dc4 13.Ne4=+) 11...Nge7 12.Nbd2 0-0 13.Re1 Rab8 14.Rb1 Kh8 15.c4 Bc5 16.Qe2 Rfd8 17.Nb3 Bb4 18.Red1 a5 19.a3 Bd6 20.c5 Rb3 21.cd6 Qd6 22.Be5 Qa3 23.Rb3 Qb3 24.Bd6?? (better 24.Nd4 Qb7 25.Nc6 Nc6 26.Bc3-/+) 24…Rd6-+ 0-1. Radji (2205) - chessstrategy (2370), Rated Blitz game, lichess.org, 2015.

7.Bb5 Bd7 8.Qh5 g6 9.Qe2 Bc5 10.Nc3 Ne7 11.Na4 Bd6 12.f4 (12.Nf3 Bb5 13.Qb5 Nbc6-/+) 12...a6 (12...Qa5 13.Nc3 0-0 14.Bd7 Nd7 15.Qb5 Qb5 16.Nb5–+) 13.Bd7-/+ Nd7 14.fe5 fe5 (14...Be5 15.Nf3 Qa5 16.Ne5 fe5 17.Be5-/+) 15.Qf3? (15.Nf3 0-0 16.0-0-/+ (16.Ne5?? Be5 17.0-0-0 Bb2 18.Kb2 Nf6–+; 16.Be5? Ne5 17.Ne5 Re8–+)) 15...Rf8–+ 16.Qh3 (16.Qe2 Nb6 17.Nc3 Nc4–+) 16...Qa5 (16...Nb6!? 17.Nc3 Nc4 18.Bc1–+) 17.Nc3 Qb6 18.0-0-0?? (better is 18.Nd1–+) 18...Rb8 19.Na4 Qa5 (better is 19...Qb4 20.a3 Qa4 21.Ne2–+) 20.Nc3 (20.Qb3–+) 20...Qb4 21.Re1 (21.Na4 Qa4 22.Qb3 Rb3 23.ab3–+) 21...Qb2 22.Kd1 Qb6 (better is 22...Rf2 23.Nge2 Ba3 24.d4–+) 23.Nf3 (23.Nge2 Qc6 24.Qh4 d4 25.Nd4 ed4 26.Qd4 Rb4–+) 23...h5 (better is 23...e4 24.Rhf1 ef3 25.Rf3 Rf3 26.gf3 Nf8–+) 24.Ng5 (24.Rhf1 e4 25.Ng5 Rf5 26.Rf5 Nf5 (worse is 26...gf5 27.Qh5 Kd8 28.Ne6 Kc8 29.Qe8 Kb7 30.Qd7 Ka8 31.Ke2+=) 27.Nd5 Qb1 28.Ke2 Qb5 29.d3 Qd5 30.Ne4 Kf8–+) 24...Nf5 (better is 24...Rf2 25.Nb5 Qb5 26.Qb3–+) 25.Rhf1 (25.Qd3 Nf6 26.Rhf1 e4 27.Nce4 de4 28.Ne4 Ne4 29.Re4 Kd7–+) 25...d4 (better is 25...Nd4 26.Qe6 Ne6 27.Ne6 Rf2 28.Rf2 Qf2–+) 26.Nce4 Qb1 (better is 26...Be7 27.Qd3 Qc6 28.Kc1–+) 27.Ke2 d3! (27...Qc2?! 28.Nd6 Ke7 29.Nf5 Rf5 30.Rf5 Qf5 31.Qa3 Ke8 32.Nf3-/+) 28.Kd3?? (28.cd3 Nd4 Deflection (28...Qa2 Zwischenzug); 28.Kd3 Nc5 Double attack (28...Qa2 Zwischenzug); 28.Qd3 Nd4 Deflection (28...Qa2 Zwischenzug)) 28...Qb5–+ 29.c4 Nc5 (29...Qc6 30.Ne6 Nb6 31.c5 Qd5 32.Ke2 Qe4 33.Kd1–+) 30.Nc5 Qc5 31.Rc1 (31.Ne6 Qa3 32.Ke2 Qh3 33.gh3–+) 31...e4! 32.Ke2 (32.Ke4 Qd4 Mate attack; 32.Ne4 Qd4 Deflection (32...Qd4 Decoy)) 32...Nd4 33.Ke1 Qg5 34.c5 (34.Qc3 Rf1 35.Kf1 Qf6 36.Ke1 Bh2 37.Qe3 Nc2 38.Ke2 Ne3 39.Re1 Bg3 40.Ke3 Rd8 41.Rd1 Qf2 42.Ke4 Qe2) 34...Rf1 35.Kf1 Qf5 (35...Qf5 36.Qf5 Nf5 37.cd6 Rb2–+) 0–1. Tagirov,Kajum K – Putin,Andrey, 5th Cup Governov B, 2009.

7.Bb5 Nd7 8.Nf3 Rb8 9.Qe2-/+.

7.Nc3 Ne7 8.Bb5 Kf7=.

7.Qh5 g6=.

5.ed5 cd5

6.Nc3 Be6 7.d4 e4 8.Be2 Bb4 9.Nh3 Qc7 10.Qd2 Ne7 (10...Bh3 11.gh3 Nd7 12.a3-/+) 11.Nf4+=.

6.c4 Be6 7.cd5 Bd5 8.Nc3 Be6 9.Qa4 b6 (9...Nd7!?+=) 10.Bc4 Bc4 11.Qc4 Nd7 12.Nf3+=.

6.d4 Bb4!? A) 7.Bc3 Qe7 (7...Bc3 8.Nc3 Qa5 9.Qd2 Ne7 10.Nf3 Qc7 11.de5=; 7...Qd6 8.Qd2 Bc3 9.Nc3 Be6 10.de5 Qe5 11.Nge2=; 7...Qa5 8.Qd2 Bc3 9.Nc3 Ne7 10.Nf3 Qc7 11.de5=) 8.Be2 Be6 9.de5 fe5 10.Nf3 Bc3 11.Nc3=; B) 7.Nd2 e4 (7...Nd7= 8.de5 Qe7 9.Ngf3 fe5 10.a3 Bd6 11.c4=) 8.c3 Ba5 9.c4 Ne7 10.Rc1 0-0 11.Bc3=; C) 7.c3 Bd6 8.de5 Be5 9.Nf3 Bf5 10.Be2 Ne7 11.0-0=.

6.d4 Bd6 A) 7.Qh5 g6 8.Qe2 Nd7 9.de5 fe5 10.f4 Bb4 11.Nd2+=; B) 7.c4 ed4 (7...Bb4 8.Bc3 Qe7 9.de5 dc4 10.Bc4 Nd7 11.a3+=) 8.Qh5 g6 9.Qd5 Bb4 10.Kd1 Qd5 11.cd5=; C) 7.Nd2 Nh6 (7...Ne7 8.de5 fe5 9.f4 Nd7 10.Qh5 Ng6 11.Bd3=; 7...Nd7 8.c4 Ne7 9.Qg4 Kf7 10.cd5 Nb6 11.Qh5=) 8.c4 ed4 9.Qh5 Nf7 10.Qd5 Qe7 11.Ne2=; D) 7.de5 fe5 8.Nf3 Bg4 9.Be2 Qa5 10.Bc3 Bb4 11.Qd2+=.

6.d4 e4 7.c4 Be6= (7...Ne7 8.c5 Bf5 9.Ne2 Nd7 10.Nbc3+=) 8.c5 Ne7 9.Nc3 Ng6 10.Nge2=.

6.d4 e4 7.f3 Bf5 (7...Be6 8.fe4 de4 9.c4 (9.Qh5 Bf7 10.Qg4=) 9...f5 10.d5=; 7...f5 8.c4 Bd6 9.Nh3 Nf6 10.c5+=) 8.fe4 (8.c4 Bb4 (8...Ne7= 9.Nc3 e3 10.Qe2+=) 9.Bc3 Bd6 10.c5=) 8...Be4 (8...de4 9.c4= a6 10.Qa4=) 9.Nd2 Qe7 (9...f5 10.Ne4 de4 11.Qh5 g6 12.Qe2=) 10.Ne4 f5 11.Ne2 (11.a3 Nf6=) 11...fe4 12.g3 (12.c4 Qb4 13.Qd2 dc4= (worse is 13...Qc4 14.Nc3 Qc7 15.Nd5+/-)) 12...Qb4 (12...Nf6 13.Bc3+=) 13.Bc3 Qc4 14.a4 Bd6 (14...Nf6 15.Bh3=) 15.Ba5 Qc8 16.c4 (16.Nc3 Qf5 17.b6 Ne7 18.Bb5 Nd7+=) 16...dc4 17.Nf4 (17.Qc2 Nf6=) 17...Bf4 18.gf4 Qf5 (18...Nf6 19.Qe2=) 19.Rg1 (19.Qd2 Nf6=) 19...Qf4 20.Rg4 Qe3 21.Qe2 Qe2 22.Be2 Nf6 23.Rg7 b6 24.Bd2 Rg8 25.Rg8 Ng8 26.Bc4 Nf6 27.Rc1 Nbd7 28.Bb3 Ke7 (28...Nf8 29.Bg5 Ng4 30.Bd5+-) 29.Rc6 Rd8 (29...Re8 30.Bg5+-) 30.Bg5 (30.Bb4 Ke8+-) 30...Rf8 31.Ke2 Re8 (31...h6 32.Bh6 Rh8 33.Bf4+-) 32.Re6 Kf8 33.Rf6 (33.Bf6?! Re6 34.Be6 Nf6+/-) 33...Nf6 34.Bf6 Rc8 35.Be5 Rc3 36.Bd5 e3 37.Be4 h5 38.Bb8 Rc4 39.Ba7 (worse is 39.Ke3 Ra4 40.Bg6 h4+-) 39...Rd4 40.Ke3 Ra4 41.Bb6 Kf7 (41...Ke8 42.Bc6 Kf7 43.Bd4+-) 42.Bc7 (42.Bc7 Ke6 43.b6+-) 1–0. Rohde,Friedhelm – Bielefeld,D, BdF, 1997.

6.d4 Nh6 7.de5+/- Bg4 (7...Bb4 8.Nd2 fe5 9.Be5 0-0 10.Ngf3 Bg4 11.c3+=) 8.Be2 Bb4 9.c3 Bc5? (better is 9...Be2 10.Qe2 Ba5+/- 11.ef6+-) 10.Bg4+- Ng4 (10...fe5 11.Nh3 Ng4 12.Qg4+-) 11.Qg4 Qe7 (11...0-0 12.Qe6 Kh8+-) 12.Qc8 Qd8 13.Qc5 Nd7 14.Qd4 (14.Qd5 Ne5 15.Qe6 Qe7 16.Qe7 Ke7+-) 14...fe5 (14...Ne5 15.Na3+-) 15.Qd5 Rf8 (15...Qb6 16.Ba3 0-0-0 17.Bd6+-) 16.Qe6 Qe7 17.Qc4 (better is 17.Qe7 Ke7 18.Ba3 Ke6 19.Bf8 Rf8+-) 17...Qf6 18.Nf3 Nb6 19.Qe4 Rd8 (19...0-0-0 20.0-0+-) 20.0-0 Qg6 (20...Rf7 21.Re1+-) 21.Qe5 Kd7 22.Nbd2 Rfe8 23.Qc5 Re2 (23...Qd6 24.Qf5 Kc7 25.Qh7+-) 24.Rad1 (better is 24.Rae1 Rde8 25.Re2 Re2 26.Ne5 Re5 27.Qe5+-) 24...Qc2 (24...Ke8 25.Rde1 Qe6 26.Re2 Qe2 27.Ba3 Rd2 28.Nd2+-) 25.Ne5 (better is 25.Ne4! Rd2 26.Rd2 Qd2 27.Ned2+-) 25...Ke6 26.Qc7 Rdd2 27.Qf7 Ke5 28.f4 Ke4 29.Qe6 Kd3 30.Rf3 Re3 31.Re3 1–0. Taulien,Hans_Juergen – VonNeanderthal,Gnurk, remoteschach.de, 2003.

4.b5 Ne7

5.Nc3 A) 5...a6 A1) 6.bc6 Nbc6 7.Bc4 Na5 8.Bd3 d5 9.Qh5 g6 10.Qh4 d4; A2) 6.a4 d5 (6...ab5 7.ab5 Ra1 8.Qa1 d5 9.Nf3 d4 10.Nd1 Be6) 7.ed5 Nd5 8.Nf3 ab5 9.ab5 Ra1 10.Qa1 Nb4; A3) 6.Qh5 g6 (6...Ng6 7.Nf3 Bc5 8.Na4 Bb4 9.bc6 bc6 10.Bc3 Bc3) 7.Qh4 Bg7 8.bc6 Nbc6 9.Nf3 Qb6 10.Rb1 Qc5; B) 5...Qa5 B1) 6.Nge2 cb5 (6...d5 7.Nc1 d4 8.Nb3 Qc7 9.Na4 Ng6 10.c3 dc3) 7.Nc1 b4 8.Nb3 Qb6 9.Nd5 Nd5 10.ed5 a5; B2) 6.Qf3 Qb4 (6...Ng6 7.a4 Qb4 8.Ba3 Qa5 9.Bf8 Kf8 10.Qd3 Qc7) 7.Rb1 a6 8.b6 d6 9.Bd3 Nd7 10.Nge2 Nb6; B3) 6.Qh5 g6 7.Qf3 Bg7 8.a4 d6 9.Bc4 Nd7 10.Nge2 Nc5; C) 5...d6 C1) 6.Be2 a6 (6...Be6 7.Nf3 a6 8.a4 ab5 9.ab5 Ra1 10.Qa1 Nd7) 7.bc6 Nbc6 8.Nf3 Be6 9.0-0 Qa5 10.Re1 Kf7; C2) 6.Qh5 g6 7.Qf3 Nd7 8.Nh3 Bg7 9.bc6 Nc6 10.Nd5 Nb6; C3) 6.Nf3 Be6 (6...Kf7 7.d4 ed4 8.Nd4 d5 9.ed5 cd5 10.Bd3 Nd7) 7.d4 Nd7 8.Be2 Kf7 9.0-0 Nb6 10.Rb1 Rb8; D) 5...d5+= D1) 6.Nf3 d4 (6...a6 7.d4 ab5 8.de5 b4 9.ef6 bc3 10.fe7 Qe7) 7.Na4 Ng6 8.c3 d3 9.Qb3 Bg4 10.h3 Bf3; D2) 6.Qh5 g6 (6...Ng6 7.ed5 cd5 8.Bd3 e4 9.Be2 Be6 10.Nh3 Bf7) 7.Qh4 Bg7 8.Nf3 d4 9.Na4 cb5 10.Bb5 Bd7; D3) 6.d4 Nd7 (6...de4 7.de5 Bf5 8.ef6 gf6 9.Qh5 Bg6 10.Qh4 Bg7) 7.Nf3 Qa5 8.Qd2 a6 9.bc6 bc6 10.Be2 Ng6.

5.c4 a6 A) 6.Nf3 ab5 (6...Ng6 7.Nc3 Be7 8.Be2 ab5 9.cb5 d5 10.bc6 bc6) 7.cb5 d5 8.Nc3 Nd7 9.bc6 bc6 10.d4 de4; B) 6.Nc3 ab5 (6...d5 7.cd5 ab5 8.a3 cd5 9.Qh5 g6 10.Qf3 b4) 7.cb5 d5 8.Nf3 Nd7 9.ed5 Nd5 10.Nh4 g6; C) 6.Qa4 d6 (6...Ng6 7.Nc3 Bc5 8.Be2 0-0 9.Ba3 Qe7 10.Bc5 Qc5) 7.Nf3 Nd7 8.d4 ed4 9.Bd4 Nc5 10.Bc5 dc5.

5.c4 cb5 A) 6.Nc3 b4 7.Nd5 Nd5 8.cd5 Na6 9.Nf3 Nc5 10.Ne5 fe5; B) 6.Nf3 b4 (6...Na6 7.cb5 Nc5 8.Qc2 d6 9.d4 Ne6 10.Nbd2 Ng6) 7.d4 ed4 8.Be2 Nbc6 9.Nbd2 Ng6 10.Nd4 Be7; C) 6.cb5 d5 (6...d6 7.d4 Be6 8.d5 Bf7 9.Nf3 Nd7 10.Bd3 f5) 7.Nc3= Be6 8.Nf3 Nd7 9.Be2 d4 10.Na4 Ng6.

5.c4 d5 A) 6.cd5 cd5 7.Qh5 g6 8.Qf3 Bg7 9.Nc3 Nd7 10.Nh3 Nb6; B) 6.Qh5 g6 (6...Ng6 7.cd5 cd5 8.Bd3 Be6 9.Ne2 d4 10.0-0 Nd7) 7.Qf3 Bg7 8.ed5 cd5 9.Nc3 d4 10.Nd5 Nd7; C) 6.Nc3 d4 (6...Be6 7.bc6 bc6 8.cd5 cd5 9.Bb5 Kf7 10.Nf3 a6) 7.Na4 Kf7 8.Nf3 Ng6 9.h4 Nd7 10.h5 Nf4.

5.c4 Ng6 6.Nc3 (6.Nf3 Be7+= (6...Bc5 7.d4 ed4 8.Bd4 Bd4 9.Qd4 0-0 10.Nc3 Qa5; 6...cb5 7.cb5 d5 8.ed5 Qd5 9.Nc3 Qe6 10.Qa4 Nf4) 7.Nc3 0-0 8.g3 Qa5 9.h4 h5 10.Nh2 Bc5; 6.Nh3 Bc5 (6...Bb4 7.Qb3 Bc5 8.Nc3 d6 9.Na4 0-0 10.g3 Be6) 7.Nc3 d6 8.Qf3 0-0 9.Bd3 Be6 10.0-0 Qa5) 6...Bb4 (6...Bc5 7.Nf3+= (7.Be2 0-0 8.Nf3 Nf4 9.0-0 Qe8 10.d4 ed4) 7...Qb6 8.Be2 Bf2 9.Kf1 a6 10.Na4 Qa7; 6...Be7 7.Nf3 0-0 8.g3 Bc5 9.h4 Ne7 10.h5 h6) 7.a3 (7.Qb3 Qa5 8.Nf3 0-0 9.a3 Be7 10.c5 Kh8) 7...Bc3 (7...Bc5 8.Na4 d6 9.Nf3 0-0 10.d4 ed4) 8.Bc3 0-0 (8...d5 9.cd5 (9.ed5 cd5 10.Rc1 d4) 9...cd5 10.Qc2= Be6) 9.Nf3 (9.d4 d6+= 10.Nf3 Bg4) 9...d5= 10.cd5 cd5 11.Qb3 Be6 12.ed5 (12.g3 Kh8=) 12...Bd5 13.Bc4 Ne7 (13...Bc4 14.Qc4 Rf7 15.0-0+=) 14.0-0 (14.Bb4!? Bc4 15.Qc4 Rf7 16.0-0+=) 14...Bc4+= 15.Qc4 Qd5 16.Qc7 (better is 16.Qe2!?=) 16...Qd7 (better is 16...Nd7!? 17.Bb4 Rfc8-/+) 17.Qc4 ½–½. Zornack,Andre (1930) – Gottwald,Bernhard (1915), RSS7E basic–32, 2010.

5.Bd3 A) 5...d5 A1) 6.Nh3 Nd7 (6...cb5 7.0-0 b4 8.a3 Na6 9.ed5 Nd5 10.Qh5 Ke7) 7.Qh5 g6 8.Qf3 Bg7 9.Nc3 Nc5 10.bc6 bc6; A2) 6.Na3 Nd7 (6...de4 7.Be4 Bf5 8.Qf3 Be4 9.Qe4 Qd5 10.f3 cb5) 7.bc6 Nc5 8.ed5 Nd3 9.cd3 Nd5 10.Nf3 bc6; A3) 6.Nc3 d4 (6...Nd7 7.bc6 Nc5 8.c7 Nd3 9.cd3 Qc7 10.ed5 Qc5) 7.Nce2 Nd7 8.f4 ef4 9.Nf4 Ne5 10.Nf3 Bg4; B) 5...a6 B1) 6.a4 d5 (6...ab5 7.ab5 Ra1 8.Ba1 d5 9.Nc3 d4 10.Na4 Ng6) 7.Nc3 d4 8.Nce2 ab5 9.ab5 Ra1 10.Qa1 Nd7; B2) 6.Qh5 g6 (6...Ng6 7.f4 ef4 8.Ne2 Be7 9.bc6 Nc6 10.Nf4 Qb6) 7.Qh4 Bg7 8.bc6 Nbc6 9.Nc3 Nb4 10.Nf3 d5; B3) 6.bc6 Nbc6 (6...dc6 7.Nc3 Nd7 8.Be2 Ng6 9.Nf3 Nf4 10.0-0 Nc5) 7.Nc3 d5 8.Qh5 g6 9.Qh4 d4 10.Nce2 Bg7; C) 5...Ng6 C1) 6.Ne2 d5 (6...a6 7.bc6 Nc6 8.Nbc3 Bc5 9.0-0 0-0 10.Nd5 d6) 7.0-0 Nd7 8.Nbc3 Nc5 9.ed5 Nd3 10.cd3 cd5; C2) 6.Nh3 a6 (6...cb5 7.Nc3 Nc6 8.0-0 a6 9.Qh5 Nb4 10.Nd5 Nd3) 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bc5 10.Nc3 d5; C3) 6.Qh5 a6 (6...Bc5 7.Nc3 cb5 8.Nge2 Nc6 9.0-0 a6 10.Nf4 0-0) 7.f4 ef4 8.Ne2 Bb4 9.bc6 Nc6 10.Nf4 Qa5; D) 5...cb5 D1) 6.Qh5 g6 (6...Ng6 7.Nc3 Bc5 8.Nh3 Nc6 9.0-0 b4 10.Nd5 0-0) 7.Qf3 Bg7 8.Nc3 b4 9.Nd5 Nd5 10.ed5 Na6; D2) 6.Nf3 b4 (6...Nbc6 7.Nc3 b4 8.Nd5 Qa5 9.Ne3 d5 10.0-0 Be6) 7.0-0 Nbc6 8.a3 d5 9.ab4 Nb4 10.Nc3 Nd3; D3) 6.Nc3 Nbc6 (6...b4 7.Nd5 Nd5 8.ed5 g6 9.Nf3 Na6 10.0-0 Nc5) 7.Nb5 Ng6 8.Ne2 Qb6 9.Rb1 Nb4 10.Bc4 d5.

5.d4 A) 5...d6 A1) 6.de5 de5 (6...fe5 7.Nc3 a6 8.bc6 Nbc6 9.Nf3 Ng6 10.Nd5 Be6) 7.Nc3 Qa5 8.Nf3 Be6 9.Nd2 Qb4 10.Nb3 Ng6; A2) 6.Nf3 a6 (6...ed4 7.Nd4 a6 8.Nd2 ab5 9.Be2 Na6 10.a4 b4) 7.bc6 Nbc6 8.Nbd2 Nd4 9.Nd4 ed4 10.Bc4 Qb6; A3) 6.Nc3 a6 (6...ed4 7.Qd4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d5) 7.de5 de5 8.Qd8 Kd8 9.a4 ab5 10.0-0-0 Kc7; B) 5...Qa5 B1) 6.Bc3 Qa4 7.Be2 d6 8.Qd3 Bd7 9.Nf3 cb5 10.0-0 Na6; B2) 6.Nd2 d6 (6...ed4 7.Bd4 d5 8.Qh5 g6 9.Qh4 Nd7 10.Ngf3 Bg7) 7.Ngf3 cb5 8.c4 Be6 9.cb5 Nd7 10.d5 Bg4; B3) 6.Qd2 Qd2 7.Nd2 ed4 8.Ngf3 c5 9.Bc4 a6 10.b6 d6; C) 5...cb5 C1) 6.Nf3 ed4 (6...Nbc6 7.de5 fe5 8.Nbd2 a6 9.Ne5 Ne5 10.Be5 Nc6) 7.Nd4 a6 8.a4 Qa5 9.c3 ba4 10.Ra4 Qb6; C2) 6.Nd2 ed4 (6...Nbc6 7.de5 Ne5 8.Ngf3 Qb6 9.Ne5 fe5 10.Be2 Nc6) 7.Ngf3 a6 8.Bd3 Nbc6 9.0-0 Ng6 10.a4 ba4; C3) 6.de5 fe5 (6...Qa5 7.Nc3 fe5 8.Bb5 Nbc6 9.Nf3 Qb6 10.Rb1 Nd4) 7.Nf3 Nbc6 8.Nbd2 Ng6 9.Bb5 Qb6 10.a4 a6; D) 5...ed4 D1) 6.Nf3 c5 (6...d5 7.Nd4 de4 8.Nd2 Nf5 9.Ne4 Bb4 10.c3 Qd4) 7.Bd3 a6 8.Na3 ab5 9.0-0 b4 10.Nb5 d6; D2) 6.Nd2 cb5 (6...d5 7.Bd4 de4 8.Ne4 Bf5 9.f3 cb5 10.Bb5 Nbc6) 7.Ngf3 Nbc6 8.Bb5 Qa5 9.Bd3 Ng6 10.0-0 Nf4; D3) 6.Bd4 cb5 (6...d5 7.Nc3 de4 8.Ne4 Bf5 9.f3 a6 10.b6 Nd5) 7.Bb5 Nbc6 8.Nf3 Nd4 9.Nd4 Qa5 10.Qd2 Qd2.

5.Nf3 a6 A) 6.bc6 Nbc6 (6...Qb6 7.cd7 Nd7 8.Ba3 Nc6 9.Bf8 Kf8 10.Nc3 Nc5) 7.Nc3 d5 8.Bd3 de4 9.Be4 f5 10.Bc6 Nc6; B) 6.a4 d5 (6...ab5 7.ab5 Ra1 8.Ba1 d5 9.Nc3 Nd7 10.Be2 Qa5) 7.ed5 Nd5 8.Nc3 Be6 9.Ne4 Be7 10.Be2 ab5; C) 6.d4 ed4 (6...d6 7.bc6 Nbc6 8.Nbd2 ed4 9.Be2 d5 10.0-0 Kf7) 7.Nd4 ab5 8.Bd3 Ng6 9.0-0 Na6 10.a4 b4.

5.Nf3 cb5 A) 6.Nc3 b4 (6...a6 7.Bd3 d6 8.a4 b4 9.Nd5 Nbc6 10.0-0 Be6) 7.Nd5 Nbc6 8.Nh4 Qa5 9.Qh5 Kd8 10.Bc4 Nd5; B) 6.Be2 Nbc6 (6...d5 7.Bb5 Nbc6 8.Nc3 d4 9.Na4 Qa5 10.Qe2 a6) 7.Bb5 a6 8.Bc6 dc6 9.Nc3 Ng6 10.d4 Bg4; C) 6.d4 ed4 (6...d5 7.Nbd2 Qa5 8.de5 Nd7 9.Bd3 de4 10.Be4 Nc6) 7.Nd4 a6 8.Be2 Nbc6 9.0-0 Qb6 10.Nf3 Qc5.

5.Nf3 d5 A) 6.ed5 cd5 (6...Nd5 7.Nc3 a6 8.a4 Be6 9.Nd5 Qd5 10.Be2 Bd6) 7.Nc3 Kf7 8.Be2 e4 9.Nd4 Nf5 10.Nf5 Bf5; B) 6.Qe2 de4 (6...a6 7.d4 de4 8.Qe4 Bf5 9.Qe2 ab5 10.de5 fe5) 7.Qe4 Bf5 8.Qc4 a6 9.a4 Nd5 10.Na3 Be6; C) 6.Nc3 d4 (6...a6 7.ba6 Na6 8.d4 ed4 9.Qd4 Kf7 10.0-0-0 Be6) 7.Na4 Ng6 8.h4 Qa5 9.h5 Nf4 10.g3 Ne6.

5.Nf3 d6 A) 6.Be2 a6 (6...Be6 7.Nc3 a6 8.a4 ab5 9.ab5 Nd7 10.0-0 Kf7) 7.bc6 Nbc6 8.Nc3 Be6 9.0-0 Qa5 10.d4 ed4; B) 6.d4 a6 (6...ed4 7.Nd4 a6 8.Be2 ab5 9.Nd2 Na6 10.a4 b4) 7.bc6 Nbc6 8.Nbd2 ed4 9.Be2 Kf7 10.0-0 d5; C) 6.Nc3 Be6 (6...a6 7.a4 Be6 8.Be2 Kf7 9.0-0 ab5 10.ab5 Nd7) 7.d4 Nd7 8.Be2 Nb6 9.0-0 Nc4 10.Rb1 Qa5.

5.Nh3 A) 5...cb5 A1) 6.Nc3 b4 (6...a6 7.Bd3 Nbc6 8.a4 Nb4 9.ab5 Nd3 10.cd3 d5) 7.Nb5 Ng6 8.a3 Nc6 9.ab4 d5 10.ed5 Nb4; A2) 6.a3 a6 (6...Nbc6 7.Nc3 a6 8.Bd3 d6 9.Nd5 Nd5 10.ed5 Ne7) 7.Nc3 Nbc6 8.Bd3 Kf7 9.0-0 d6 10.a4 b4; A3) 6.Qh5 g6 (6...Ng6 7.Bb5 Nc6 8.0-0 Nb4 9.Na3 a6 10.Bc4 d5) 7.Qh4 Bg7 8.Bb5 Nbc6 9.0-0 0-0 10.Nc3 Nb4; B) 5...d5 B1) 6.Qh5 g6 (6...Ng6 7.Bd3 d4 8.0-0 Bh3 9.Qh3 Nf4 10.Qf3 a6) 7.Qf3 Bg7 8.Nc3 Be6 9.Be2 0-0 10.Ba3 Re8; B2) 6.Bd3 Nd7 (6...cb5 7.Nc3 b4 8.Nd5 Nd5 9.ed5 Qd5 10.0-0 Nc6) 7.Qh5 g6 8.Qf3 Bg7 9.Nc3 Nc5 10.bc6 bc6; B3) 6.Nc3 d4 (6...Be6 7.Bd3 a6 8.f4 d4 9.Ne2 Bh3 10.gh3 ab5) 7.Na4 Ng6 8.c3 d3 9.Qb3 Bh3 10.gh3 Nf4; C) 5...Qb6 C1) 6.Nc3 cb5 (6...a6 7.a4 ab5 8.ab5 Ra1 9.Qa1 d5 10.Qa8 Qc7) 7.a4 b4 8.Nd5 Nd5 9.ed5 Qc5 10.d4 Qd5; C2) 6.f4 d6 (6...cb5 7.fe5 fe5 8.Qh5 Qg6 9.Qg6 Ng6 10.Nc3 Nc6) 7.Na3 Qc5 8.Qh5 g6 9.Qf3 Nd7 10.Nf2 d5; C3) 6.a4 d5 (6...a6 7.Nc3 ab5 8.ab5 Ra1 9.Qa1 d5 10.Qa8 Qc7) 7.Nc3 a5 8.Qh5 g6 9.Qf3 d4 10.Qf6 dc3; D) 5...a6 D1) 6.c4 ab5 (6...d5 7.cd5 ab5 8.d4 Ra4 9.Be2 Qa5 10.Nd2 cd5) 7.cb5 d5 8.Nc3 Nd7 9.d4 c5 10.de5 d4; D2) 6.a4 d5 (6...ab5 7.ab5 Ra1 8.Ba1 d5 9.Nc3 d4 10.Na4 Qa5) 7.Bd3 ab5 8.ab5 Ra1 9.Ba1 Nd7 10.Qh5 g6; D3) 6.bc6 Nbc6 (6...Qb6 7.Nc3 Nbc6 8.Rb1 Qc5 9.Bd3 g6 10.0-0 Bh6) 7.Nc3 d5 8.Be2 d4 9.Nb1 Qb6 10.Qc1 Bh3.

5.Nf3 b6

6.Bc4 d5 7.ed5 cd5 8.Be2 Bb7 9.d4 e4 10.Nfd2 g6 11.0-0 Nf5 12.Nb3 A) 12...a6 13.Ba3 (13.a4 Bd6 14.Ba3 Bf4 15.a5 ab5 16.Bb5 Kf7=) 13...Ba3 14.Na3 0-0 15.c4 dc4 16.Bc4 Kg7=; B) 12...Bd6 13.Bg4 (13.Ba3 a6 14.Bd6 Qd6 15.a4 ab5 16.ab5 Ra1=) 13...Qc7 14.Bf5 gf5 15.Qh5 Kd8 16.Qf5 Qf7+=; C) 12...Qc7 13.Ba3 (13.Bg4 Nd6 14.a4 Nc4 15.Bc3 Bd6 16.h3 f5+=) 13...Bh6 14.Re1 a6 15.Bg4 Ng7 16.Bb4 ab5=.

6.Bc4 d5 7.ed5 cd5 8.Be2 Bb7 9.d4 e4 10.Nfd2 g6 11.0-0 Nf5 12.c4!?+= A) 12...dc4 13.d5 (13.Bc4 Nd6 14.Be6 Bg7 15.Re1 f5 16.Qb3 Nd7+=; 13.Nc4 a6 14.ba6 Ra6 15.d5 Bg7 16.Nc3 0-0+=) 13...Be7 14.Ne4 Qd5 15.Nbd2 Qb5 16.Nf6 Kf8+-; B) 12...e3 13.Nf3 (13.Nb3 ef2 14.Rf2 Bh6 15.Bd3 Be3 16.Bf5 Bf2=; 13.g4 ed2 14.gf5 Qc7 15.Nd2 gf5 16.Kh1 Bd6+=) 13...Bh6 14.Kh1 Nd7 15.Bd3 Nd6 16.cd5 0-0+/-.

6.Bc4 d5 7.ed5 cd5 8.Be2 Bb7 9.d4 e4 10.Nfd2 g6 11.0-0 Nf5 12.Re1 A) 12...Qc7 13.c4 (13.h3 Qf4 14.Bc1 Qc7 15.Bg4 Nd6 16.Na3 a6=; 13.Bg4 Nh6 14.Ba3 Ng4 15.Qg4 f5 16.Qe2 Bg7=) 13...Bd6 14.cd5 Bh2 15.Kh1 e3 16.Bf3 Qf4+=; B) 12...Bd6 13.c4 (13.Bg4 Qc7 14.h3 h5 15.Bf5 gf5 16.Ba3 Bh2=) 13...Qc7 14.cd5 Bh2 15.Kh1 e3 16.Bf3 Qf4+=; C) 12...Be7 13.Bf1 (13.c4 0-0 14.Nc3 Nd4 15.Nd5 Ne2 16.Qe2 Bd5+=; 13.Bg4 Nd6 14.a4 a6 15.Be2 0-0 16.Nc3 Nf5=; 13.f3 Qc7 14.fe4 Ne3 15.Qc1 de4 16.Nc3 Bd6=; 13.h3 0-0 14.Bg4 Qd7 15.Nc3 Bb4 16.a3 Bc3=) 13...Qd7 14.c4 dc4 15.Nc3 Qd4 16.Nde4 Qd1+/-; D) 12...Bb4 13.Bg4 Nh6 14.Bh3 f5 15.a3 Bd6 16.Qe2 Qc7=.

6.Bc4 d5 7.ed5 cd5 8.Be2 Bb7 9.d4 e4 10.Nfd2 g6 11.0-0 Nf5 12.f4?? a6 (better is 12...Ne3!? 13.Qc1 Nf1 14.Qf1 Qc7–+) 13.Re1 a5 (13...Bd6 14.ba6 Na6 15.g3+=) 14.Bh5 (better is 14.Bg4 Ng7 15.Bh3=) 14...Ne3?? (better is 14...Qd7 15.Bg4 Qb5+=) 15.Re3+- gh5 16.Qh5 Kd7 17.Qg4 (17.Qf5 Ke8 18.c4 Be7 19.cd5 Qd5 20.Qd5 Bd5+-) 17...Ke7? (better is 17...Ke8+-) 18.Ba3 Ke8 19.Qe6 Be7 20.Be7 Qe7 21.Qb6 Bc8 (21...Rg8 22.Nb3 Bc8 23.Nc3+-) 22.Qc5 (22.Nc3 Bb7 23.Nb3 Rg8+-) 22...Qe6 (22...Bb7 23.Nb3+-) 23.Rc3 (better is 23.c4 Qd7 24.cd5+-) 23...Rg8?? (23...Kf7+-) 24.Qc8 Qc8 (24...Ke7 25.Qc5 Kf7+-) 25.Rc8 Kf7 26.Rg8 Kg8 27.Nc3 1–0. quetiapin (1620) – wmaes (1615), gameknot.com, 2013.

4.Bc4 d5

5.Bb3 Bb4 6.f4 (6.Qh5 g6 7.Qh4 de4 8.Qe4=+) 6...d4 (better 6...ef4 7.Ne2 a5=+) 7.fe5+= fe5? (7...Nd7 8.Nf3 A) 8...Ne5? 9.Ne5 (9.Nd4 Bg4 10.Ne2 Qd6=+) 9...fe5 10.Qh5 Kd7 11.Qe5 Qh4 12.g3+-; B) 8...fe5=) 8.Qh5+- Kd7 9.Qe5 Qe7?? (9...Qh4 10.Kf1 Qf6 11.Nf3 Nh6+-) 10.Qd4 (10.Bd4?! Qe5 11.Be5 Nf6+-) 10...Kc7 11.Qg7 Kb6 (11...Nf6 12.Qh8 Nbd7 13.Ne2 Ne4 14.0-0 Bc5 15.Bd4+-) 12.Qe7 (12.Bg8?! Qg7 13.Bg7 Rg8+-) 12...Ne7 (12...Be7 13.Bh8 Nf6 14.Nc3+-) 13.Bh8 Ng6 (13...Bg4 14.Nc3+-) 14.Bd4 c5 (14...Ka5 15.Ne2+-) 15.Be3 Nc6 16.Ne2 Bg4 (16...Nge5 17.a3 Ba5 18.Nbc3 Bc3 19.Nc3+-) 17.a3 Ba5 18.Nbc3 Rd8 (18...Nge5 19.Na4 Kc7 20.Nc5+-) 19.Na4 Kc7 20.Nc5 b6 (20...Kb8 21.Rf1 Nh4 22.Rf2+-) 21.Ne6 Be6 22.Be6 Nge5 (22...Rd6 23.Bd5 Nce7 24.Bb3+-) 23.Rf1 Kd6 (23...b5 24.Rf6 Rd6 25.Nf4+-) 24.Bd5 Ng4 25.Bf4 Kc5 26.Be6 h5 27.0-0-0 Nd4 28.Bg4 hg4 29.Be3 Kc4 30.Nd4 Rd4 31.d3 Kc5 32.Rf5 Kc6 (32...Kd6 33.Bd4 Ke7 34.Rdf1 g3 35.Rf7 Ke8 36.hg3 Be1 37.Rf8 Kd7 38.R1f7 Kc6 39.Ra7 Bg3 40.Rf6 Bd6 41.e5 Kb5 42.c4 Kc6 43.Rd6) 33.Bd4 (33.Bd4 g3 34.hg3 b5 35.Rh1 Kb7 36.Rh7 Bc7 37.Rc5 b4 38.Rcc7 Ka6 39.a4 b3 40.Ra7) 1–0. Pierre – Mascarone, internet, 2020.

5.ed5 cd5

6.Bb3 Nc6 7.a3 a6 8.Qh5 g6 9.Qh4 Be7 10.Qg3 Be6 11.Ne2 Qd7 12.d3 0-0-0 13.Nd2 Nh6 14.f3 Nf5 15.Qf2 d4 16.Be6 Qe6 17.Nc4? b5-/+.

6.Bb3 Nc6 7.a3 b5 8.Ne2 (8.Nc3 d4 9.Qh5 g6=) 8...a6 (8...a5 9.Nec3 Be6 10.Nb5 ab4 11.Qh5 g6 12.Qf3=) 9.0-0 Bb7 (9...Bg4!?=) 10.d4+- Nge7 11.de5 fe5 12.Re1 (12.f4 Qb6 13.Kh1 e4+-) 12...d4 (12...Qd6 13.f4 e4 14.Nbc3+=) 13.Ng3 (13.f4 Qb6 14.Kh1 Ng6+-) 13...Ng6 14.Nd2 (14.c3 d3+=) 14...Bd6 (14...a5!? 15.ba5 Ra5=) 15.Nde4+- Qf6?? (better 15...Bf8+-) 16.Nf6+- gf6 17.Ne4 (better 17.Bd4 Rd8 18.Qf3+-) 17...Kf8 (17...Be7+-) 18.Nd6 Rd8 19.Nb7 Rd7 20.Nc5 (better 20.Qf3 Kg7 21.Qc6 Re7+-) 20...Rb7 21.Nb7 Nge7 22.Nc5 (better 22.Qh5 Ng6 23.Qf3 Kg7 24.Qc6 Rf8+-) 22...Kg7 23.Qg4 Ng6 24.Ne6 Kf7 25.Nd4 Kg7 26.Nc6 (26.Qd7 Nge7 27.Nf5 Kg6 28.Ne7 Kg7 29.Nc6 Kh6 30.Bc1 Kh5 31.Qf5 Kh4 32.Re4) 26...Rc8 (26...Rd8 27.Nd8 h5 28.Qd7 Ne7 29.Qe7 Kg6 30.Bc1 h4 31.Qe8 Kf5 32.Be6) 27.Qc8 (27.Re5 Ra8 28.Re7 Kf8 29.Qe6 Ne7 30.Qe7) 27...Kh6 (27...f5 28.Ne5 a5 29.Ng4 Ne5 30.Qg8) 28.Qh3 (28.Bc1 Nf4 29.Ne5 fe5 30.Bf4 ef4 31.Qg4 f3 32.Re6) 28...Kg7 29.Nd8 (29.Bc1 Nf4 30.Bf4 ef4 31.Re7 Kg6 32.Qh7 Kg5 33.Rg7) 29...Kh8 (29...Nf4 30.Ne6 Ne6 31.Qe6 Kh6 32.Qf6 Kh5 33.Re5 Kg4 34.Be6) 30.Nf7 (30.Qh6 a5 31.Ne6 ab4 32.Qg7) 30...Kg7 (30...Kg8 31.Ne5 Kg7 32.Qd7 Ne7 33.Qe7 Kh6 34.Qf6 Kh5 35.g4) 31.Qh6 Kg8 32.Ng5 Kh8 33.Qh7 1–0. BeepBeepImAJeep (2505) – miguel712, lichess.org, 2018.

6.Bb3 Bb4

7.a3 Ba5 8.Qh5 g6 9.Qf3 Be6 10.Ne2 Nc6 11.Nbc3-/+.

7.a3 Bc5 8.d4 ed4 9.Ne2-/+ Nc6 10.Nd4 Qa5 11.Bc3-/+.

7.a3 Bc5 8.Qh5 g6 9.Qh4 Be6 10.Ne2 Nc6 11.0-0 f5 12.Qa4 Qd7 13.Kh1 Nge7 14.f4 0-0 15.fe5 d4?? 16.Be6?? Qe6+=.

7.Nc3 Bc3 (7...Be6 8.Qh5 g6 9.Qf3 Bc3 10.Bc3 Nc6 11.Ne2-/+; 7...Ne7 8.Qh5 g6 9.Qf3 Bc3 10.Bc3 Qd6 11.Rb1-/+) 8.Bc3 Ne7 9.Qh5 Ng6 10.Ne2 d4 11.Bb2-/+.

7.Ne2 Ne7 8.0-0 Be6 9.f4 Bd6 10.fe5 Be5 11.d4 Bc7 12.Nf4 Bf7 13.Qe2 0-0 14.Nd2 Nbc6 15.Ne6 Qd6 16.Nf8 Rf8 17.g3 Ng6 18.Qg2 Bb6 19.Nf3 Nge7 20.a4 a6 21.Ba3 Qd7 22.Rae1 Re8 23.Nd2 Bd4 24.Kh1 Bc3 25.Re3 d4 26.Rd3 Bb3 27.cb3 Nd5 28.Nc4 b5 29.Nd6 Re3 30.Qd5 Kh8 31.Nf7 Qf7 32.Qf7 Normal 1-0. delcatto (2130) - pedalero (1975), Rated Blitz game, lichess.org, 2016.

7.f4 Nc6 8.Qh5 g6 9.Qe2 Nge7 10.fe5 fe5 11.Nf3-/+.

7.Qh5 g6 8.Qe2 Ne7 9.f4 ef4 10.a3 Bc5 11.Nc3-/+.

7.Qh5 g6 8.Qh4 Be7 9.f4 ef4 10.Qf4 Be6 11.Nf3 Nc6 12.0-0 Qd7 13.Nd4 Bf7 14.Ba4 Bc5 15.Kh1 Bd4 16.Bd4 0-0-0 17.Bf6 (better 17.Nc3!? g5 18.Qf2+/-) 17...Nf6+= 18.Qf6 Be6 19.Nc3 Rhf8? (better 19...a6+=) 20.Qf8+- Rf8 21.Rf8 Kc7 22.Nb5 Kb6 23.Nd4?? (23.Rb1 Kc5 24.d4 Nd4 25.Nd4 Qa4 26.Ne6 Kd6+-) 23...Qd6? (better 23...Qe7 24.Bc6 bc6 25.Rb1 Kc5=) 24.Rf6?? (better 24.Bc6 Qf8 25.Rb1 (25.Ne6? Qf6 26.c3 Qe6-+) 25...Ka5 26.Ne6+-) 24...Nd4-+ 25.Rb1 Ka5 26.c3 b5 (better 26...Ka4!? 27.cd4 Qe7 28.Rf3-+) 27.cd4 ba4 (27...Ka4?! 28.Re1 Qa3 29.Rfe6-+) 28.Re1 Qb4 (better 28...Qa3!? 29.Rfe6 Qa2 30.Re7-+) 29.Rfe6 Qd4 30.Re7 a6 31.Rb1 Qd2 32.Rc7 Qa2?? (better 32...a3 33.Ra1 Qb2-+) 33.Rc5 1-0. carlos78 (2295) - desperado_400 (2110), Rated Blitz game, lichess.org, 2016.

6.Bb3 Be6

7.a3!?+= a5 8.ba5 Nc6 9.Ne2 Na5 10.d4 Qc7 11.0-0+=.

7.Ba4 Nd7 (7...Nc6 8.a3 Bd6 9.Qh5 g6 10.Qf3 Rc8 11.Nc3=) 8.a3 a5 9.Qh5 g6 10.Qe2 Kf7 11.ba5+=.

7.b5 a6 8.d4 e4 9.Ne2 Bb4 10.Nbc3 Qd7 11.Nf4=.

7.b5 Bb4 8.Nf3 Ne7 9.0-0 0-0 10.Qe2 Ng6 11.Qe3+=.

7.b5 Qb6 8.Nc3 d4 9.Na4 Qb5 10.Be6 Qa4 11.Qe2+=.

7.b5 Qd7 8.Nc3 Bb4 9.Qh5 Kd8 10.Qe2 Ne7 11.a3=.

7.b5 Nd7 8.Nf3 Nc5 9.0-0 Nb3 10.ab3 Qb6 11.Qe2+=.

7.b5 Nd7 8.Qh5 g6 9.Qh4 Bg7 10.Ne2 Ne7 11.f4 0-0 12.0-0 Nf5 13.Qf2=.

7.b5 Nh6 8.Nf3 Qd7 9.Qe2 Bb4 10.a3 Be7 11.0-0=.

7.c3 a5 (7...Nh6 8.Nf3 Bd6 9.0-0 0-0 10.Re1 a5 11.ba5+=; 7...Bd6 8.Qh5 g6 9.Qe2 a5 10.ba5 Nc6 11.Nf3+=) 8.ba5 Nc6 9.Nf3 e4 10.Nd4 Nd4 11.cd4+=.

7.Nf3 Bb4-/+ 8.Ne5 (better is 8.0-0!?-/+ Ne7 9.d4 e4 10.Nfd2 Qd7 11.c4-/+; 8.a3 Bd6 9.d4 Nc6 10.de5 fe5 11.Qe2-/+) 8...fe5–+ 9.Qh5 Kd7 10.Bd5 (10.Be5 Nf6 11.Qg5–+) 10...Bd5 11.Qg4 Ke8 12.Qb4 Nc6 13.Qg4 Nf6 14.Qe2 Kf7 15.0-0 Re8 16.Nc3 Rc8 17.Nd5 Qd5 0–1. Jahnke,Bernd (1800) – Zeldin,Vitali (1870), Dortmund op–B, 2004.

6.Bb5 Nc6

7.a3 Qb6 8.Nc3 Be6 9.Qh5 g6 10.Qh4? (10.Qe2 a6 11.Ba4 Bh6=) 10...Be7 (10...d4 11.Bc6 Qc6 12.Nce2-+) 11.Nge2? (11.Bd3 f5 12.Qg3 f4=+) 11...f5 (better 11...d4 12.Bc6 Qc6-+ (12...bc6?! 13.Nd1-/+)) 12.Qg3= f4 13.Qd3 Nf6 14.Na4 Qc7 15.Qb3 a6 16.Bc6 bc6 17.d4 e4 18.Nc5 Bc5 19.dc5 0-0 20.Qc3 (20.Nd4 Qc8=) 20...Rad8 (20...Bg4 21.f3 ef3 22.gf3=+) 21.Qd4 (21.Nd4 Bd7=) 21...Bg4 22.Nc3 (22.f3 ef3 23.gf3 Bf3=+) 22...e3 (better 22...f3!? 23.g3 Bh3-/+) 23.0-0 e2 24.Rfe1 Rde8? (24...f3!?+=) 25.h3 (25.f3 Bf5+-) 25...Bf5+/- 26.Re2 Re2 27.Ne2 Bc2 (27...f3!? 28.Ng3 Qd7+/-) 28.Nf4+- Be4?? (better 28...Qe7+-) 29.Ne6 (29.Ne6 Qe7 30.Nf8 Kf8 31.Qf6 Qf6 32.Bf6+-) 1-0. carlos78 (2215) - steffanovo (2120), Rated Blitz game, lichess.org, 2015.

7.a3 Bd6 8.Ne2 Nge7 9.c4 d4 (9...0-0 10.Nbc3+=) 10.d3 (10.c5 Bc7=) 10...0-0 (10...a6 11.Bc6 Nc6 12.0-0+=) 11.c5= Bc7 12.Bc4 Kh8 (12...Nd5 13.0-0+=) 13.0-0 (13.Nd2 b6=) 13...Bg4 (13...b6 14.Nd2=) 14.h3 Bh5 15.Qc2 (15.Nd2 Nd5=) 15...Nd5 16.Ng3 (16.Re1 Qd7=) 16...Bg6 (16...Bf7 17.Re1=) 17.Nd2 Rc8 (17...Rb8 18.Rfe1=) 18.Nde4 (18.Rae1 Qd7=) 18...f5 (18...Qd7 19.Qb3 Bf7 20.Nd6 Bd6 21.Bd5=) 19.Nd6 Bd6 20.Bd5 (worse is 20.cd6 Qd6 21.Qd2 Nb6–+) 20...Bb8 21.Qc4 (21.Qb3 f4 22.Ne4 f3=) 21...Qg5 (21...b5 22.Qb3=) 22.b5 (22.Rfe1=) 22...Ne7 (better is 22...Nd8!?=) 23.Bb7+/- Bf7 (better is 23...Rc7!? 24.Bc1 Qf6+/-) 24.Qc1+- Rcd8?? (better is 24...Qc1 25.Rac1 Rc7+-) 25.Qg5 Ng6 26.Nf5 Be6 27.Be4 Rf6 28.f4! h6 (28...ef4 29.Bd4 Deflection; 28...Nf4 29.Qg7 mate Mate attack) 29.Nh6 Kh7 30.fe5 Rf1 31.Rf1 (31.Rf1 Ba2 32.Qg6 Kh8 33.Qh7) 1–0. Janek – Nirolf, internet, 2017.

7.a3 Be6 8.Nf3 a6 9.Ba4 b5 10.Bb3 Bd6 11.Nc3 Nge7 12.d4 (12.0-0 Qc7=+) 12...e4-/+ 13.Nh4 Qd7 14.h3 (better 14.f3!? f5 15.fe4 fe4 16.0-0=+) 14...0-0 15.g4 f5 16.gf5 Nf5 17.Qh5? (better 17.Nf5!? Rf5 18.Ne4 de4 19.d5-/+) 17...Nfd4 (17...Ncd4 18.Ne2 Nb3 19.cb3-+) 18.0-0-0 (better 18.Nd5 Qa7 19.0-0-0 Rf2 20.Rhe1 Nb3 21.cb3-+) 18...Nb3 (18...Rf2?! 19.Bd5 Qe8 20.Qe8 Re8 21.Bc6 Bf4 22.Kb1 Nc6 23.Ne4 Ba2 24.Ka2 Re4 25.Nf5 Rc2 26.Kb1-/+) 19.cb3 g6?? (19...Rf2 20.Nd5 Ne7-+ (20...Bh3 21.Rhg1 Rc8 22.Rg7 Qg7 23.Bg7 Ne5 24.Kb1 Kg7 25.Ne3+-)) 20.Qh6?? (better 20.Rhg1 Ne5 21.Ng6 hg6 22.Rg6 Kf7 23.Rg5 Ke7 24.Re5 Be5 25.Qe5=) 20...Bf4-+ 21.Qf4 Rf4 22.Ng6 0-1. pacal56 (2220) - mecker (2255), Rated Blitz game, lichess.org, 2014.

7.a3 Be6 8.Nf3 Bd6 9.0-0 Nge7 10.Nc3 0-0 11.Ba4 a6 (11...e4 12.Ne1=+) 12.Bb3 Qd7 13.Re1 d4 (13...e4 14.Nh4=+) 14.Be6= Qe6 15.Ne4 Qd7 (15...Rac8 16.c3 dc3 17.Bc3=) 16.c3+= dc3 17.dc3 Rfd8 (17...Rad8 18.Qb3 (worse 18.Qd6 Qd6 19.Nd6 Rd6=) 18...Kh8 19.Rad1+=) 18.Qb3 (18.Qd6?! Qd6 19.Nd6 Rd6=) 18...Kh8 19.Rad1 Nc8 20.c4 Qe7 (20...Qe6 21.Re3+=) 21.c5 Bc7 22.Nh4 N8a7? (22...Qe8 23.Nf5+/-) 23.Rd8 (23.Nd6!? g6 24.Nf7 Kg7 25.Nd8 Rd8 26.Rd8 Qd8+-) 23...Rd8 (better 23...Nd8 24.Nf5 Qf7+/-) 24.Re3?? (better 24.Nd6 Bd6 25.Ng6 hg6 26.Re3+-) 24...g6 (24...Qf7 25.Kf1 Qb3 26.Rb3 Nb5=) 25.Bc1 (better 25.Nf3+=) 25...f5?? (better 25...Qf7! 26.Nd2 Qb3 27.Rb3 e4=+) 26.Ng6+- hg6 27.Rh3 Qh7 (27...Kg7 28.Bh6 Kh8 29.Bf8 Qh7 30.Rh7 Kh7 31.Qf7 Kh8 32.Qg7) 28.Ng5 (28.Rh7 Kh7 29.Ng5 Kh8 30.Qh3 Kg7 31.Qh7 Kf6 32.Qf7) 28...Qh5+- 29.Rh5 gh5 30.Nf7 (30.Nf7 Kh7 31.Nd8 Nd8 32.Qd5+-) 1-0. carlos78 (2215) - itsmagic (2075), Rated Classical game, lichess.org, 2014.

7.a3 Be6 8.Nf3 Bd6 9.0-0 Nge7 10.Qe2 0-0 11.Nc3 Ng6 12.g3 Qd7 13.d3 Rac8 14.Ba4 Rfe8 15.Nb5 Bb8 16.Nc3 Kh8 17.Rab1 a6 18.b5 ab5 19.Bb5 Qf7 20.a4 Bg4 21.Qd1 (better is 21.Kg2!?-/+) 21...e4 (21...e4 22.de4 d4+=) 0–1. usingprogram (2015) – buryszpak (1710), kurnik, 2013.

7.a3 Be6 8.f4 ef4 9.Ne2 Bd6 10.0-0 (10.Nd4 Qc8 11.0-0=) 10...g5 (10...Qb6!? 11.Bd4 Qb5-/+) 11.Nd4 (11.Bc6 bc6 12.Re1 Qb6 13.Kh1 Kd7+=) 11...Bd7 (11...Qb6 12.Kh1 Be5 13.Ne6 Bb2 14.Bc6 Qc6 15.Qh5 Kd7 16.Qf7 Ne7 17.Nc5 Kd8 18.Ra2+=) 12.Re1 Nge7?? (better 12...Kf8+=) 13.Qh5+- Kf8 14.Bc6?? (better 14.Qh6 Kf7 15.Ne6 Be6 16.Qf6 Ke8 17.Bc6 (17.Re6?! Rf8 18.Bc6 bc6+/-) 17...bc6 18.Qh8 (18.Qe6?! Rf8+/-; 18.Re6?! Rf8 19.Qh6 Qb6 20.d4 f3 21.gf3 Bf4+-) 18...Kd7 19.Qh7 Qb6 20.Kf1+-) 14...Nc6+= 15.Ne6 (15.Nf3 Qb6 16.Kh1 d4+=) 15...Be6 16.Re6 Be5 17.Nc3 (better 17.Be5 Ne5 18.Nc3+=) 17...Nd4 18.Re5 fe5 19.Re1 Qd6 20.Qg5?? (20.Ne2 Qg6 21.Qg6 hg6 22.Nd4 ed4 23.Bd4=+) 20...Re8 (better 20...Nf3! 21.gf3 Rg8 22.Qg8 Kg8-+) 21.Kh1? (better 21.Nb5! Qg6 22.Re5 Re5 23.Qf4 Qf5 24.Qf5 Rf5 25.Nd4=) 21...Rg8-+ 22.Qh5 Qg6 (22...h6-+) 23.Qh3? (better 23.Qg6 Rg6 24.Nd5-/+) 23...Nc2-+ (23...Qc2?! 24.Qh6 Kf7 25.Nd5-/+) 24.Rf1 d4 25.Nd5 (25.Nb5 Qg4 26.Qg4 Rg4 27.Na7 Re6-+) 25...Qg4 (better 25...Qe6!? 26.Qf3 Rd8 27.Nf4 ef4 28.Qb7-+) 26.Qg4 Rg4 27.Nf6 Rg6 28.Ne8 Ke8 29.Rc1 Rc6 30.h3 (30.Kg1 b5-+) 30...Kd7 31.b5 Rc5 32.a4 b6 33.Rf1 d3 34.g3 fg3 35.Rf7 Ke6 36.Rh7 Ne1 37.Bc3?? (37.Rh8-+) 37...Rc3! 38.Rh6 (38.dc3 d2 Passed pawn) 38...Kd5 39.dc3 (39.Rg6 Nf3 40.Rg8 Nd2-+) 39...d2 40.Rh7 Nd3 41.Rd7 Ke4 42.Kg2 (42.Kg1 d1Q 43.Kg2 Qf3 44.Kg1 Qf2 45.Kh1 Qf1) 42...d1Q 43.Kg3 (43.Rd3 Qd3 44.a5 Qf3 45.Kg1 Qf2 46.Kh1 Qf1) 43...Qf3 44.Kh4 Qf6 45.Kg3 (45.Kh5 Nf4 46.Kg4 Qg6 47.Kh4 Ng2) 45...Qg5 46.Kh2 Nf4 (46...Ne1 47.Rd4 ed4 48.cd4 Qg2) 47.Rd2 (47.Rd4 ed4 48.cd4 Qg2) 47...Ke3 (47...Kf3 48.Kh1 Qg3 49.c4 Qe1 50.Kh2 Qd2 51.Kg1 Qg2) 48.Ra2 (48.Rb2 Nh3! 49.Rb1 Kf3 50.Rf1 Nf2 51.Rf2 Kf2 52.a5 Qh4) 48...Qh4 (48...Ne2 49.Re2 Ke2 50.h4 Qg4 51.h5 Kf3 52.a5 Qg2) 49.a5 (49.Rc2 Qh3 50.Kg1 Qg4 51.Kh2 Qh5 52.Kg1 Qd1 53.Kh2 Qc2 54.Kg3 Qg6 55.Kh4 Qh5 56.Kg3 Qh3) 49...Qh3-+ 50.Kg1 Ne2 51.Re2 Ke2 52.ab6 (52.c4 Kf3 53.ab6 Qg2) 52...Kf3 53.ba7 e4 (53...Qg2) 54.a8Q Qg2 0-1. carlos78 (2220) - Petrovich63 (2155), Rated Blitz game, lichess.org, 2015.

6.Bb5 Bd7

7.Bd7 Qd7 8.a3 Na6 9.Nc3 d4 10.Ne4 Nh6 (10...Rc8 11.Rc1=) 11.Nf3 Rc8 12.0-0 Nf7 13.c3 d3 14.Qb3 Nd6 (14...f5 15.Ng3 e4 16.Nd4=) 15.Nd6+= Qd6 (15...Bd6 16.Rfe1+=) 16.Rae1 Nc7 (16...b5 17.Nd4+/-) 17.c4 b6? (better is 17...Be7+/-) 18.Ne5!+- fe5 (18...Be7 19.Nd3 0-0+-) 19.Be5 Qc6 (19...Qg6 20.Bg7 Kd7 21.Bh8+-) 20.Bg7 Kf7 21.Bh8 Bg7 (21...Ne6 22.Qd3 Qg2 23.Kg2 Nf4 24.Kf3 Nd3 25.Re3 Nb4 26.ab4 Bb4 27.Bc3 Rc4 28.Re4 Re4 29.Ke4+-) 22.Bg7 Kg7 23.Re7 Kf8 24.Rh7 Ne6 (24...Kg8 25.Qd3 Ne8+-) 25.Qc3 Nf4 (25...Qg2 26.Kg2 Nf4 27.Kf3 Ng6 28.Qf6 Ke8 29.Qg6 Kf8 30.Qf7) 26.Qh8 1–0. Janek – zandar, internet, 2017.

7.Bd7 Nd7 8.a3 Bd6 9.Nf3 Nh6 10.0-0 0-0 11.d3 Nf5 12.Nbd2 Rc8 13.c4 d4 14.Ne4 Qe7 15.Nd6 Qd6 16.Nd2 b6 17.Qg4 Nh6 18.Qh3 f5 19.Rac1 Qg6 20.Nf3 Ng4 21.Rfe1 Rfe8 22.Nh4 Qf6 23.Nf3 Nb8 24.Qg3 Nc6 25.h3 Nh6 26.b5 f4 27.Qg5 Qg5 28.Ng5 Nf7 29.Nf7 Kf7 30.bc6 Rc6 31.Rb1 Kf6 32.Bc1 Kf5 33.Bd2 g5 34.f3 h5 35.Kf2 g4 36.hg4 hg4 37.fg4 Kg4 38.Re4 Rh8 39.Rbe1 Rh2 40.Re5 f3 41.R1e4 Normal 1-0. Butterbrot (1965) - mochok (1840), Rated Blitz game, lichess.org, 2015.

7.Bd7 Nd7 8.a3 Bd6 9.f4 Ne7 10.Nf3 0-0 11.0-0 Rc8 12.Nc3 ef4 13.Kh1 Ng6 14.Nd4 Nde5 15.Ne6+/-.

7.Bd7 Nd7 8.a3 Bd6 9.f4 ef4 10.Qe2 Qe7 11.Nc3 Qe2 12.Nge2 Be5 13.d4+- Bd6 14.Nd5 Ne7 15.Nef4 Nd5 16.Nd5 0-0 (16...Rc8 17.Kd2+-) 17.c4+- Rfe8 18.Kf2 Rac8 19.c5 Bf8 (19...Bb8 20.Rad1+-) 20.Rhe1 Red8 21.Ne3 b6 22.Rac1 a5 23.c6 1–0. Alice1 – Cpncb321, internet, 2019.

7.Qh5 g6 8.Bd7 Kd7 9.Qh3 Ke8 10.Qe6 Be7 11.Nc3=.

7.Qh5 g6 8.Bd7 Qd7 9.Qh4 Bg7 (9...Qa4 10.c3=+) 10.f4 (10.Ne2 Qa4 11.Kd1 Qc6=+) 10...Ne7 (10...Qa4 11.fe5 Qc2 12.ef6 Nf6 13.Bf6-/+) 11.fe5 (11.Nf3 Qa4 12.c3 Qc2-/+) 11...fe5 12.Nf3 (12.Ne2!?=+) 12...Nf5-/+ 13.Qh3 (13.Qf2 e4 14.Bg7 Qg7 15.Nc3 ef3 16.Qf3-+) 13...e4-+ 14.Ne5 (14.Bg7 Qg7 (14...Ng7?! 15.Qd7 Kd7 16.Nd4=+) 15.Nc3 ef3 16.Qf3 Nc6-+) 14...Qe7 15.Qc3 (15.g4 Be5 16.Be5 Qe5-+) 15...Nc6! 16.Nc6 (16.Qb3 Be5 17.Be5 Qe5-+) 16...Bc3 (better 16...Qh4!? 17.Kd1 Qg4 18.Kc1 Bc3 19.Bc3 Qg2 20.Re1-+) 17.Ne7 Bb2 18.Nd5 0-0-0 (worse 18...Ba1 19.Nc7 Kd7 20.Na8 Ra8 21.Kd1-+) 19.Nf4 (19.Nf6 e3 20.c3 Ba1-+) 19...Ba1 20.c3 e3 21.g4 (21.d4-+) 21...ed2 22.Kd1 (22.Nd2 Rhe8 23.Kd1 Bc3-+) 22…Ne3 (22...Ne3 23.Ke2 Rhe8 24.Nd2 Nc4 25.Kf2 Rd2 26.Kg3 g5-+) 0-1. carlos78 (2325) - AntoineBriet (2665), Rated Blitz game, lichess.org, 2016.

7.Qh5 g6 8.Bd7 Nd7 9.Qh4 f5 (better 9...Ne7!?-/+) 10.Qd8=+ Rd8 11.a3 Bg7 12.Nf3 Ne7 13.0-0 0-0 14.Re1 e4 15.Bg7 Kg7 16.Nd4 Rf6 17.Nc3 Ne5 18.f3 N7c6 19.Nc6 bc6 (better 19...Nc6!? 20.Ne2 g5=+) 20.fe4= fe4 21.d3 Rf4 22.Rad1 Rdf8 23.de4 Rg4 24.Kh1 (24.Re2 d4 25.Na4+/- (25.Rd4?? Nf3 26.Kf1 Nd4 27.Rf2 Rgf4 28.Rf4 Rf4 29.Kg1 Nc2-+)) 24...Rf2= 25.Re2?? (25.ed5 Rgg2 26.Re5 Rh2 27.Kg1 Rhg2 28.Kh1 Rh2 29.Kg1 Rhg2 30.Kh1 Rh2=) 25...Re2 (better 25...Rgg2! 26.Rf2 Rf2-+) 26.Ne2=+ Re4 (worse 26...de4 27.h3 Rh4 28.Rd4+=) 27.Ng3 (better 27.Nd4!?=+) 27...Rc4-+ 28.Rd2 h5 29.h3 h4 (better 29...Rc3!? 30.Ne2 Ra3-/+) 30.Ne2=+ Re4 31.Nd4 Nc4 32.Rd3 Ne5 33.Rd1 Kh6 34.a4 White plans b5 34...Re3 35.b5 cb5 36.Nb5 Nc4 37.Rd5 Re2 38.Rd4 Rc2 39.Rh4 Kg5 40.Rg4 Kf6 41.Na7 Ne3 42.Rf4 Kg5 43.Rf3 (better 43.Rd4+=) 43...Nf5?? (better 43...Rc1 44.Kh2 Nf1 45.Rf1 Rf1-/+) 44.Nb5+- Ra2 45.Nc3 Ra3?? (45...Ra1 46.Kh2 Nd4+-) 46.Ne4 Kh6 47.Ra3 1-0. carlos78 (2430) - lindogatito (2050), Rated Blitz game, lichess.org, 2015.

4.d4 Bb4

5.c3 Bd6

6.Bc4 Qb6 7.Bc1 ed4 8.cd4 Bb4 9.Kf1 Ne7=+.

6.Bc4 Qb6 7.Bc1 ed4 8.Qd4 Bc5 9.Qd2 Ne7-/+.

6.Bc4 ed4 7.cd4 Bb4 (7...Qe7 8.Nc3=+) 8.Nc3 (8.Bc3!? Bc3 9.Nc3=+) 8...Ne7-/+ 9.Qb3 Bc3 10.Bc3 d5 11.ed5 Nd5 (11...b5 12.Bd3 Qd5 13.Qd5 Nd5 14.Bd2-/+) 12.Ne2=+ 0-0 13.0-0 (13.Nf4 Re8 14.Kd2 Kh8 15.Nd5 cd5 16.Bd5 Nc6=) 13...Kh8 (13...b5 14.Bd5 Qd5 15.Qd5 cd5 16.Nf4=+) 14.Bb2 (14.Bd5 cd5 15.Rfe1 Nc6=+) 14...Be6 (14...Nb6 15.Bd3=+) 15.Rfe1 (15.Qb7 Qb6 16.Qb6 ab6=) 15...Qd7 (15...b5 16.Bd5 Bd5 17.Qg3=+) 16.Nc3= Bf7 (16...Bg8 17.Nd5 cd5 18.Bb5=+) 17.Ne4 (17.Bd5!? cd5 18.Ba3+=) 17...b6 18.Rad1 a5 19.Ba3 Rd8 20.Nd6 Bg8 (20...b5 21.Nf7 Qf7 22.Bd3=+) 21.Qg3= b5 (better 21...Ra7=) 22.Bb3?? (better 22.Bd5 cd5 23.Nc4 dc4 24.Re7 Qe7 25.Be7=) 22...b4-+ 23.Bd5 (23.Ne4 ba3 24.Bc4 Qc7 25.Qa3 Nd7-+) 23...cd5 (23...Qd6?! 24.Qd6 Rd6 25.Bb3-/+) 24.Bc1 (24.Nb5 Qb5 25.Re7 g5-+) 24...Qd6 25.Bf4 Qd7 26.Bc7 Re8 27.Re8 Qe8 28.h4 (28.Qd3 Nc6-+) 28...Nc6 29.Qd6 (29.Qf3 Bf7 30.Qd3 Bg6-+) 29...Rc8 (better 29...Qe2 30.Qc6 Qd1 31.Kh2-+) 30.Bb6 h6 31.Bc5 (31.Rc1 Na7! 32.Qf4 Qe4-+) 31...Rd8 (31...Qe2 32.Rf1-+) 32.Qg3 (32.Qc7 Qe6-+) 32...Qd7 (32...Qe2 33.Qb3-+) 33.f3 (33.Re1 Re8 34.Re8 Qe8-+) 33...Re8 34.Rc1 Bh7 35.Qf4 (35.Re1 Bd3-+) 35...Bf5 (35...Re2 36.Ra1-+) 36.Bb6 (36.Qd2 Qe6-+) 36...Be6 (36...Re2!? 37.Ra1-+) 37.Re1 Bf7 38.Rc1 (38.Re8 Qe8 39.Kh2 Bg6-+) 38...h5 (38...Re2 39.Ra1-+) 39.Bc5 (39.Qd2 Bg6-+) 39...Re2 40.Qg3 (40.Ra1 Bg6-+) 40...Nd8 (40...Qe8 41.Kh2-+) 41.Re1 (41.a3 b3 42.Qb8 a4-+) 41...Re1 (41...Ra2 42.Rc1-+) 42.Qe1 Ne6 43.Qc1 (43.a3 Nc5 44.dc5 b3-+) 43...Nc5 (43...Qb5 44.Kf2-+) 44.Qc5 Qd8 (44...Qa4 45.Qc8 Qe8 46.Qc1-+) 45.Kh2 (45.Kf2 Bg6-+) 45...g6 (45...Qb8 46.g3 a4 47.Qe7-+) 46.Qc6 (46.Kg1 g5-+) 46...Kg7 47.Qa6 (47.Kg1 Qe8 48.Qc1 Qe2-+) 47...Be8 (better 47...Qc7 48.Kh3-+) 48.Qa7 Kh6 49.Qb7 (49.Qc5 Ba4-+) 49...Qd7 (49...f5 50.Kg3-+) 50.Qb8 (50.Qb6 Qf5 51.Qb8 Qe6-+) 50...g5 (50...Qe7 51.Qb6 a4 52.Qa5-+) 51.hg5 fg5 (51...Kg5 52.Qg3 Kf5 53.Kh3-+) 52.Qe5 (52.Qb6 Kg7 53.Qa5 Qd6 54.Kg1 h4-+) 52...h4 (52...Kg6 53.f4 gf4 54.Qf4-+) 53.Qh8 (53.f4 gf4 54.Qf4 Kh5 55.Qe5 Kg6-+) 53...Kg6 54.Qg8 Kf5 55.Qf8 Bf7 56.Qg7 (56.Qc5 Qd8-+) 56...a4 (56...Qc7 57.Kg1-+) 57.Qe5 Kg6 58.Qe3 (58.Qb8 Qe7-+) 58...Qb5 Black prepares b3 (58...Qc7 59.Kg1 Qc2 60.Qe5-+) 59.Qd2 (59.Qe5 b3 60.ab3 ab3 61.Qd6 Kh5-+) 59...b3 60.ab3 ab3 61.Qb2 Qc4 62.Kg1 (62.Qa3 Qc7 63.Kg1-+) 62...Qc2 63.Qa3 b2 64.Qd6 (64.Qd6 Kh5 65.Kh2-+). pacal56 (2265) - mecker (2225), Rated Blitz game, lichess.org, 2014.

6.Bc4 Qe7 7.Nf3 ed4 8.Nd4 Qe4 9.Kf1 Be7-/+.

6.Bc4 Qe7 7.Nf3 ed4 8.Nd4 Qe4 9.Kf1 Ne7-/+.

6.de5 Be5+= 7.Nf3 Bc7 8.Bc4 (8.Bd3 Ne7+=) 8...Ne7 9.0-0 b5 (9...d5 10.ed5 cd5 11.Bb3+=) 10.Bb3= a5 11.a4 Ba6 12.Re1 Bf4 (better is 12...ba4!? 13.Ra4 Bb5=) 13.e5+/- f5 14.Nd4 White prepares e6 14...Qb6 (14...ba4!? 15.Ra4 Qb6+/-) 15.ab5+/- Bb5 16.g3 Bh6 17.e6 (17.Qh5 Kd8+/-) 17...d5 18.Qh5 Ng6 19.Nf5 0-0?? (19...Bd3 20.Ba3 Bf5 21.Qf5 Ra7+/-) 20.e7+- (20.Nh6?! gh6 21.Re3 Bc4=) 20...Re8 (20...Ne7 21.Re7 Bd3 22.Nh6 gh6 23.Bd5 cd5 24.Qd5 Kh8 25.Qd3 Qf2 26.Kh1 Qf1 27.Qf1 Rf1 28.Kg2 Rf5 29.c4 Kg8 30.Rg7 Kf8 31.Rh7 h5+-) 21.Nh6 gh6 22.Bd5! cd5 23.Qd5 Kh8 24.c4 (24.c4 Qd4 25.Bd4 Ne5 26.Be5; 24.Qa8?! Bc6 25.Qa5 Qb2+-) 1–0. DEFFM – GuestSNQN, freechess.org, 2018.

4.Be5! fe5?

5.Qh5 Ke7

6.Qe5 Kf7

7.Bc4 d5

8.ed5 Bb4? 9.dc6 Kg6 10.c7+-.

8.ed5 Bb4 9.dc6 Kg6 10.Qg3 Kf5 11.Bd3 Ke6 12.Qe3 Kf7 13.Qf4 Nf6 14.Bc4 Kf8 15.cb7 Bb7 16.Nf3 Bf3 17.Qf3 Bd2?? (better is 17...Nbd7+= A) 18.0-0 Ne5 19.Qe2 Qc7 20.Bb3 Re8 21.Qd1 g6 22.Ba4+=; B) 18.Be6 Ne5 (18...Nc5 19.Bf5 g6 20.c3 gf5 21.cb4 Nd3 22.Kf1-/+; 18...Nb6 19.0-0 Bd6 20.g3 Rb8 21.Re1 g6 22.d4=; 18...Rb8 19.0-0 Qe7 20.Re1 Nc5 21.a3 Bd2 22.Nd2+=) 19.Qf5 Qd6 20.0-0 Re8 21.Bb3 Neg4 22.g3-/+; C) 18.Bb3 Ne5 (18...Qe8 19.Kd1 Qe4 20.Qe4 Ne4 21.Rf1 Bc5 22.Bd5+=; 18...Qe7 19.Qe3 Re8 20.0-0 Qe5 21.c3 Bd6 22.Qe5+=; 18...g6 19.0-0 Kg7 20.d4 Re8 21.Rd1 Rc8 22.a3+=) 19.Qg3 Qd4 20.Nc3 Nc4 21.Bc4 Qc4 22.Qd3-/+; D) 18.Be2 g6 (18...Rc8 19.0-0 Qc7 20.Bb5 Nb6 21.c3 Bd6 22.Qh3+=; 18...Rb8 19.c3 Bd6 20.d4 g6 21.c4 Kg7 22.c5+=; 18...Ne5 19.Qg3 Bd6 20.Nc3 Rc8 21.Qe3 Neg4 22.Qh3+=; 18...Nb6 19.a3 Bd6 20.Nc3 Kf7 21.Qb7 Kg6 22.0-0+=) 19.a3 Bd6 20.Nc3 Kg7 21.Nb5 Bc5 22.0-0+=) 18.Nd2+- Qd4 (18...Nbd7+-) 19.Rd1 (19.Qa8?! Qa1 20.Ke2 Qe5 21.Kd3 Qd6 22.Kc3 Qe5 23.Kb3 Qc7+-) 19...Qe5 20.Be2 Qd5 (20...Nc6 21.Qc6 Re8 22.Qc4+-) 21.0-0 (better is 21.Qa3 Ke8 22.Qe3 Kf7+-) 21...Nc6 (21...Nbd7 22.Qd5 Nd5 23.Bf3+-) 22.Nc4 (better is 22.Qa3 Ne7 23.Bf3 Qd8+-) 22...Qf3 23.Bf3 (23.gf3?! Re8 24.Ne3 Nb4+-) 23...Rc8 24.Bc6 Rc6 25.Ne3 (better is 25.Rd8 Ke7 26.Rh8 Rc4+-) 25...Kf7 26.Rd3 Ra6 27.a3 Re8 28.Rb1 Rb6 29.Rb6 ab6 30.Rb3 Nd5 31.Kf1 Ke6 (31...Ne3 32.fe3 Re6+-) 32.Nd5 Kd5 33.Rb6 Re7 34.a4 Re4 35.a5 Ra4 36.a6 Ra1 37.Ke2 Kc5 38.Rb7 Ra6 39.Rg7 Re6 40.Kf1 h6 41.Rg3 Rd6 42.Re3 Rd1 43.Ke2 Rc1 44.c3 Kd5 45.f4 Rc2 46.Kf3 Rc1 47.Kg3 Rc2 48.f5 Rc1 49.f6 Rf1 50.Rf3 Rf3 (50...Rb1 51.f7 Rb8 52.f8Q Rf8 53.Rf8+-) 51.gf3 Ke6 52.Kf4 Kf6 53.Ke4 Ke6 54.Kd4 Kd6 55.c4 Ke6 56.c5 Kf5 57.Kd5 Kf4 58.c6 h5 (58...Kf3 59.c7+-) 1–0. Bonetti,Shane – MacChess 5.0, 2000.

8.ed5 cd5 9.Bd5 Kg6 10.Nh3 Qe7 11.Nf4 Kh6 12.Be6 g5 13.h4 gf4 14.Qf4 Kg7 15.Qe5 Qf6 (15...Nf6 16.Qg5; 15...Kh6 16.Qe3!) 16.Qf6 Nf6 17.Bc8. Hecht,Hans_Joachim – Neumann, Berlin, 1956.

8.ed5 Nd7?? 9.Qe6 1–0. GuestYXKJ – GuestGYBD, freechess.org, 2019.

8.ed5 Qe7?? 9.d6.

8.ed5 Qe8? 9.d6 Be6 10.Nf3!–+.

8.ed5 Kg6 9.Qg3 Kh6 10.Qe3 Qg5 11.Qg5 Kg5 12.Nf3 Kf6=+.

8.ed5 Bd6

8.ed5 Bd6 9.dc6 Kf8

10.cb7 Be5 11.ba8Q Qe7 12.Ne2 +/-.

8.ed5 Kg6

9.Ne2 Qe7!? 10.Nf4 Kh6=.

9.Ne2 Nf6??

10.Nf4 Kh6 11.h4+-.

10.Qg3 Ng4

11.Nf4 Kg5 12.f3 Bd6 13.h4 Kf6 14.fg4 Re8 15.Kf1 Re4 16.Nh5 Ke7 +/-.

11.Nf4 Kg5 12.f3 Qf6?? 13.h4+- Kh6 14.fg4 Qe5 15.Be2 Bg4 16.Qg4 Nd7 17.Nd3 Nf6 18.Ne5 Ng4 19.Ng4 Kg6 20.dc6 bc6 21.Ne5 Kf6 22.Nc6 Ke6+-.

11.h3 Qf6 12.c3 Bd6 13.f4 cd5 14.Bd5 Bb4?? 15.hg4 Qb6 16.g5 Be6 17.f5! Kf7 18.Be6 1–0. Fritz 6 – EXchess 3.11, 2003.

7.Bc4 Kg6

8.Qf5 Kh6 9.Qh3 Kg6 10.Qf5 =.

8.Nh3 d5 9.Nf4 Kf7 10.ed5 Qe7?? (10...b5 11.Ne6 Qf6 12.Ng5 Kg6 13.Bd3 Kh5 14.Be2 Kh6 15.Qf6 gf6 16.Nf7 Kg7 17.Nh8 Kh8 18.dc6 Nc6+-) 11.d6+- (11.d6 Ke8 12.de7 (12.Qe7?! Ne7 13.de7 Be7+-) 12...Ne7 13.Nh5+-) 1–0. Schiffler,L – Pinkerneil, Soemmerda, 1950.

5.Qh5 g6??

6.Qe5 Qe7?!

7.Qh8 d5 8.Nc3 de4 9.Ne4 a5 (9...Nd5 10.Qh7 Bf5 11.0-0-0+- (11.Qb7?! Nc7+/-)) 10.Nf6 Kf7 11.Nf3 Qd6 (11...Nf5 12.Bc4 Ke7+-) 12.Ng5 1-0. hamidreza_stststst (1695) – hikirisad, Rated Blitz tournament, lichess.org, 2015.

7.Qh8 Qe4 8.Ne2 (8.Kd1 Qb4 9.Qg8 Qb2 10.Bc4 Qa1+-) 8...Nh6 (8...Qb4 9.a3 Qc4 10.Qh7 Qe6+-) 9.Qh7 (9.Nbc3 Qb4 10.Qh7 Qg4+-) 9...Qc2 10.Nbc3 Ng4?? (10...Qf5+-) 11.Nd4 (11.Nd4 Nf6 12.Qh8+-) 1–0. Pommerel,Wim – Papadoypolos, corr CiF CP2, 1990.

7.Qh8 Nf6

8.d3 Qb4 9.Nd2 Qc3+-.

8.f3 d5 9.Nc3?? Kd7 10.g3 Kc7=.

8.f3 d5 9.Nc3?? de4? 10.0-0-0-/+ ef3?? 11.Nf3+- Qg7 12.Re1 Kd8 13.Qg7 Bg7 14.Ng5 Bf8 15.Ne6 Be6 16.Re6 Nbd7 17.b5 Ba3 18.Kb1 c5 19.Bd3 Bb4 20.Rf1 Bc3 21.dc3 Ne8 22.Rf7 Rb8 23.b6 ab6 24.Bb5 Nc7 25.Rd7 Kc8 26.Rc7! Kc7 27.Re7 Kd6 28.Rh7 Ke5 29.a4 g5 30.Bd3 Kf4 31.Rf7 Ke3 32.Kc1 g4 33.h3 c4 34.Re7 Kf2 35.Bc4 gh3 36.gh3 Rc8 37.Bd5 Rc3 38.Rb7 Rh3 39.Rb6 Rg3 40.a5 Ra3 41.Rf6 Ke1 42.Re6 Kf2 43.a6 Ra5 44.c4 Ra2 45.Kb1 Ra4 46.c5 Ra5 47.Bc4 Ra4 48.Re2 Kf3 49.Ra2 Rb4 50.Ka1 Rc4 51.a7 Rc1 52.Kb2 Re1 53.a8Q Kg3 54.Qg8 Kf4 55.Ra4 Re4 56.Qf8 Ke3 57.Ra3 Kd2 58.Qd6 Ke1 59.Qg3 Ke2 60.Qg2 Kd1 61.Ra1# 1–0. MacChess 5.0 – MacChess 5.0, 2000.

8.f3 d6 9.g4 Be6! 10.g5 Nbd7 11.gf6 Nf6 12.Nh3 (12.e5!? de5 13.Nc3 Bg8 14.Ne4! Bg7 15.Nf6) 12...Bg8 13.Nf4 Bg7 14.Ng6 Qf7!

8.Nf3 Ne4 9.Be2+- Qb4 (9...d5 10.c3 a5 11.d3 Qf6 12.Qf6 Nf6 13.ba5+-) 10.Bd3 d5 11.Be4 de4 12.Ng5 h6 13.Qe5+-.

8.g4?? Qe4= 9.Ne2 Qh1 10.Qf6 Qh2 11.Nbc3 (11.Nf4 Qg1 12.a4 Bb4 (12...Qg4?? 13.Ra3+-) 13.Qh8 Bf8+/-) 11...d6 (11...d5 12.Nf4+=) 12.0-0-0+/-. Schuehler – Hafner, corr, 1965.

8.Nf3 d6

9.Nc3 Kd7 (9...Ne4 10.Ne4 Qe4 11.Kd1 Bg4 12.Be2 Qb4 13.Re1+-) 10.Bc4 Kc7 11.Nd4 Bg7 12.Ncb5 cb5 13.Nb5+-.

9.Bc4 Bg4 10.Ng5?? (10.e5 Nbd7 11.0-0 de5 12.Ng5+/- 0-0-0 13.Nf7 Re8 14.b5 cb5=; 10.0-0 Kd7 11.e5 Bg7 12.ef6 Bf6 13.Qg8 Ba1 14.Re1 Be5+-) 10...Ne4= (10...Kd7 A) 11.h3 Bg7 (11...Ne4 12.Qh7 Bg7 13.Ne4 Qe4 14.Kf1 Qc4 15.Kg1+-; 11...Bf5 12.Nh7 Bg7 13.Nf8 Bf8 14.Qh4 d5 15.Bd3-/+) 12.Qg7 Qg7 13.hg4 d5 14.ed5 Qe7 15.Ne6-/+; B) 11.Be6 Be6 12.Ne6 Ke6 13.e5 de5 14.Nc3 e4 15.0-0-/+; C) 11.Ne6 Be6 12.Be6 Ke6 13.e5 de5 14.Nc3 e4 15.0-0-/+; D) 11.Be2 Be2 (11...Bg7 12.Bg4 Ng4 13.Qh7 Ba1 14.Qg6 Nf6 15.Qf5+=) 12.Nh7 Nh7 13.Ke2 Bg7 14.Qh7 Ba1 15.Qg6=) 11.0-0 (11.Qh7!? Ng5 12.Qe7 Be7 13.Bd3+= Kf7 14.h4 Ne6 15.f3+=; 11.Ne6 Be6 12.Be6 Qe6 13.0-0 Qf7 14.c3 Nf6 15.b5–+; 11.Bf7 Kd7 (11...Kd8 12.Ne6 Be6 13.Be6 Ng5 14.Kd1 Ne6 15.Re1-/+) 12.Be6 Be6 13.Ne6 Ke6 14.Qb2 Qf6 15.Qf6-/+) 11...Ng5-/+ (worse is 11...Qg5 12.Qh7 d5 13.Qb7+= (13.f4 Qf6 14.Nc3 Nd7 15.Ne4+=) 13...Bh3 14.g3 Bf1 15.Qa8+=) 12.Qd4 (12.Nc3 Qg7 13.Qg7 Bg7 14.Rae1 Kd7 (14...Kf8+= 15.f3+=) 15.f4+=; 12.h4 Qg7 13.Qg7 Bg7 14.c3 Ne6 15.f3+=) 12...Be6 (12...Be2 13.Be2 Bg7 14.Qg4 (14.Qd3 Ba1 15.Re1–+) 14...Ba1 15.Re1–+) 13.Be6 (13.c3!? Bg7 14.Qd3-/+ d5 15.Bb3-/+) 13...Bg7–+ (13...Qe6 14.Nc3 Qf5 (14...c5 15.Qh8+/-) 15.Rae1=; worse is 13...Ne6 14.Qg4+= Nd7 15.Re1+=) 14.Bf7 (14.Qe3 Ba1 15.Bc8–+) 14...Kf8 (14...Kf7?! 15.Qf4 Qf6 16.Qg4-/+; 14...Qf7?! 15.Re1 Kd7 16.Qg4 Qf5 17.Qf5 gf5 18.c3-/+) 15.Qf4 (15.Qd3–+) 15...Be5 (15...Ba1?! 16.Bg6 Bf6 17.Bd3-/+; 15...Nf7?! 16.Nc3-/+; 15...Qf7?! 16.Qd6 Qe7 17.Qe7 Ke7 18.Re1 Ne6 19.c3=) 16.Qe3 Ba1 (16...Qf7?! 17.d4 Bf4 18.Qc3+=; 16...Nf7?! 17.d4 Bg7 18.Nd2+=; 16...Kf7?! 17.c3 Bf6 18.Qd3+=) 17.Bb3 Bf6 18.h4 (18.c4 Nd7–+) 18...Nf7 19.Na3 (19.h5 gh5 20.c4 Nd7–+) 19...d5 20.c3 (20.c4 d4 21.Qe7 Be7–+) 20...Bh4 (20...a5 21.c4 d4 22.Qe7 Be7 23.Re1–+) 21.Qh3 Kg7 22.Nc2 Bf6 0–1. Kraft,R – Hentschel,G, BdF, 1957.

9.d3 Kd7 (9...d5 10.e5 Qb4 11.Nbd2 Qc3+- 12.Rb1 Nfd7 13.Kd1+-) 10.g3 Kc7 11.Nh4 Bg7 12.Ng6 Qf7 13.Qc8–+.

9.e5 de5 (9...Nbd7 10.Nc3 Ne5 11.Ne5 Bf5 12.0-0-0 de5 13.Bd3+=) 10.Bc4 Bf5 11.Ng5 (11.c3 A) 11...Nbd7 12.Ng5 (12.0-0 0-0-0 13.d4–+) 12...h6 (12...0-0-0+/- 13.Nf7+/-) 13.Nf7+/-; B) 11...Kd7 12.Bf7 Kc7 13.Ng5+=; 11.0-0 Kd7 12.Ne5 Qe5 13.Qf8+- ) 11...Nbd7 (11...Kd7 12.Nf7 Be4 13.0-0+-) 12.Bf7 (12.c3 h6 (12...0-0-0 13.Nf7 Re8+=) 13.Nf7+/-; 12.b5 0-0-0 13.bc6+/-) 12...Kd8 13.Nh7?? (better is 13.Bb3+-) 13...Nh7 14.Qh7 Nf6 15.Qh4 Qf7 16.d3 Be7 (16...e4 17.a3-/+) 17.a3 (17.Qh8!? Qe8 18.Qe8 Ke8 19.a3-/+) 17...Nh5-/+ Black is in command 18.Qc4 Qc4 19.dc4 Bc2 20.Kd2 Bf5 21.Rd1 Kc7 22.Nc3 Rd8 23.Ke3 Rd4! 24.c5 (24.Rd4 ed4 A double attack) 24...Rc4 25.Nb1 Rc2 Do you see the mate threat? 26.Nd2 (26.h4–+) 26...Bg5 27.Ke2 Nf4 28.Kf1 (28.Ke1–+) 28...Bd3 29.Kg1 Ne2 (29...Ne2 30.Kh1 Bd2–+ (30...Rd2?! 31.Rd2 Bd2 32.Rd1–+)) 0–1. Andersson,Lars H – Dopper,Johan, corr, 1991.

9.Ng5 h6 10.h4 Be6.

4.Be5 Qe7

5.Bb8 Rb8 6.Nc3 d5 7.a3 d4 8.Nce2 Qe4 9.Nf3+=.

5.Bc3 a5 6.ba5 Qe4 7.Qe2 d5 8.Qe4 de4 9.d3+=.

5.Bc3 d5 6.Qh5 g6 7.Qe2 de4 8.f3 ef3 9.Nf3=.

5.Bd4 Qe4 6.Qe2 Qe2 7.Be2 Bb4 8.a3 Be7 9.Nf3+=.

5.Bf4 Qe4 (5...d5 6.a3 Qe4 7.Qe2 Bf5 8.Qe4 Be4 9.d3=) 6.Ne2 Bb4 7.a3 Ba5 8.Be3 d5 9.Nbc3+=.

5.Bb8 Qe4

6.Qe2 Qe2 7.Be2 (7.Ne2 Rb8+= 8.b5 cb5 9.Nbc3 a6 10.g3 Ne7+=) 7...Rb8 8.c3 d5 9.Nf3 Bd6 10.d4 Ne7=.

6.Be2 Rb8+= 7.Nf3 Qb4 (7...Bb4 8.a3 Be7 9.0-0 d5 10.Re1 Qf4+=; 7...Qg4 8.0-0 Qb4 9.c4 Ne7 10.a3 Qa5+=) 8.0-0 Be7 (8...d5 9.Re1 Bd6 10.Nc3 Ne7-/+) 9.Re1 (9.c4 Nh6 10.Re1 0-0+=) 9...Nh6 (9...d5 10.a3 Qf4+=) 10.a3 Qb6 (10...Qf4+=) 11.Nc3 (11.d4 d5+=) 11...Ng4 (11...d5 12.Bd3+=) 12.d4 d5 13.Nh4 (13.Bd3 Qc7+=) 13...Nh6 14.Bh5 Kd8 15.Qe2 (15.Qd2 Qa5-/+) 15...Bd6 16.Qe3 (16.Qd3 g5 17.Nf3 Qc7-/+) 16...Bd7 (16...Bg4 17.Na4 Qc7 18.Bg4 Ng4 19.Qf3 Nh2 20.Qh3-/+) 17.Be2 (17.Nf3 Qc7-/+) 17...Qc7 18.g3 g5 19.Ng2 Re8 (19...Nf5 20.Qd3-/+) 20.Qd2 Nf5 21.Na4 (21.Qd3-/+) 21...c5 (better is 21...Re4!? 22.c3 g4-/+) 22.Nc5+= Bc5 23.dc5 Qc5 24.Rad1 Rc8 (24...Qa3? 25.Qd5 Nd6 26.Qd6 Qd6 27.Rd6+-) 25.Bg4 (25.Qd5 Qd5 26.Rd5 Re5= (worse is 26...Rc2 27.Bg4 Re1 28.Ne1+-)) 25...Re1+= (25...Qc2?? 26.Re8 Ke8 27.Qd5 Qd1 28.Qd1+-) 26.Re1 (26.Ne1 Ne7 27.Bf3 Ke8+=) 26...Ne7 (26...Nd4 27.Bd1–+) 27.Bf3 (27.Bd7 Kd7 28.Ne3 Qc3+=) 27...Qc2 (27...Qc3 28.Qd1 Qc2 29.Ne3 Qd1 30.Rd1-/+ (30.Nd1? Rc1–+)) 28.Qd5?? (better is 28.Qa5 Qc7 29.Qa7+=) 28...Qc7 ½–½. Benidze,Giga – Malureanu,Costin George, EU–ch U10 Herceg Novi, 2005.

6.Ne2 Rb8 7.a3 d5 8.Nbc3 Qe6 9.f3+=.

6.Ne2 Rb8 7.a3 d5 8.d4 Bf5 9.c3 Bd6 10.Nd2 Qe6-/+.

6.Ne2 Rb8 7.a3 Qe6 8.h4 Nh6 9.d4 d5 10.Qd3 Bd6-/+.

6.Ne2 Rb8 7.b5 Qe6 (7...d5 8.Nbc3 Qe6 9.d4 Bd6 10.Rb1 Ne7+=; 7...cb5 8.Nbc3 Qf5 9.a3 a6 10.Ng3 Qe5=; 7...Qe5 8.Nbc3 cb5 9.d4 Qg5 10.Ne4 Qd5+=; 7...Qe7 8.Nbc3 d5 9.Qb1 d4 10.Nd1 Bd7+=) 8.c3 cb5 9.g3 Qc6 10.Rg1 b4+=.

6.Ne2 Rb8 7.c3 d5 (7...Qe6 8.h4 Ne7 9.Rh3 Nf5 10.g4 Ne7+=; 7...Qe7 8.Na3 a5 9.Nc2 ab4 10.cb4 d5+=; 7...Ne7 8.d4 d5 9.Nd2 Qe6 10.Nf3 Ra8+=; 7...Ra8 8.d3 Qe6 9.g3 a5 10.ba5 Qd5+=) 8.f3 Qe6 9.d4 Bd6 10.Qa4 Ra8-/+.

5.Bc3 Qe4

6.Qe2 d5 7.Qe4 de4 8.a3 Bg4 (8...Bd6 9.d3 ed3 10.Bd3 Ne7 11.Nd2 Nd5=; 8...Ne7 9.d3 Bf5 10.Nd2 ed3 11.Bd3 Bd3=; 8...Nh6 9.d3 Bf5 10.Nd2 ed3 11.Bd3 Nd7=; 8...Be6 9.Ne2 Nd7 10.Bb2 c5 11.bc5 Nc5=) 9.Be2 Bf5 10.Bd4 Nd7 11.Nc3 a5=.

6.Qe2 d5 7.Qe4 de4 8.Bc4 Nh6 (8...Bd6 9.Ne2 b5 10.Bb3 a5 11.ba5 Ne7=; 8...b5 9.Bb3 a5 10.ba5 b4 11.Bb2 Ra5=; 8...Ne7 9.a3 Nd5 10.Ne2 Bd6 11.Bd4 Be6=; 8...Nd7 9.Ne2 Nb6 10.Bb3 Nd5 11.b5 Bc5=) 9.d4 ed3 10.Bd3 Bf5 11.Nf3 Bd3=.

6.Qe2 d5 7.Qe4 de4 8.d3 Bf5 (8...ed3 9.Bd3 Ne7 10.a3 Nd5 11.Bd2 Bd6=; 8...Na6 9.b5 Nc5 10.d4 Na4 11.bc6 bc6=; 8...f5 9.Nd2 ed3 10.Bd3 Ne7 11.a3 Nd5=) 9.Nd2 (9.a3 Ne7 10.Nd2 ed3 11.Bd3 Bd3=) 9...ed3 10.Bd3 Bd3 11.cd3 Ne7 (11...Na6=) 12.Ne2 Nd5 13.a3 a5 14.ba5 Nc3 15.Nc3 Ra5 16.Nc4 Ra6 (16...Ra8 17.a4=) 17.Kd2 (17.Rb1!? Ra7 18.a4=) 17...b5+= 18.Ne3 (18.Rhb1 Nd7 19.Nb5 cb5 20.Rb5 Bc5+=) 18...Ra3 (18...Ba3 19.d4-/+) 19.Nf5 (19.d4 g6-/+) 19...g6 20.Nd4 Kd7 21.Ra3 Ba3 22.Ra1 Bc5 23.Nce2 (23.Nf3 Re8-/+) 23...Re8–+ 24.Ra8 Kc7 25.Kc3 Kb7 26.Ra2 Nd7 27.Nc1 Nb6 (27...b4 28.Kc4–+) 28.Ncb3 (28.Nf3–+) 28...Nd5 29.Kd2 (29.Kb2 Bb4–+) 29...Bb4 30.Kc2 Kb6 31.Nc1 (31.Rb2 Bc3 32.Rb1 c5–+) 31...Bc5 (31...Bc5 32.Nf3 Nb4 33.Kd2 Na2 34.Na2 Bf2–+) 0–1. Markus,Robert – Lohr, corr SOK–88–18, 1988.

6.Qe2 d5 7.Qe4 de4 8.Ne2 Ne7 (8...Bd6 9.Ng3 Bg3 10.hg3 Ne7 11.d3 ed3=; 8...Be6 9.Ng3 Bd5 10.Be2 Nd7 11.0-0 Nh6=; 8...f5 9.Nf4 Nf6 10.Bc4 b5 11.Bb3 Bd6=; 8...Na6 9.a3 Bd6 10.Bd4 Nc7 11.Nbc3 Bf5=) 9.Ng3 Nd5 10.a3 f5 11.Bd4 a5=.

6.Qe2 Qe2 7.Be2+=.

4.Nf3 Bb4=+

5.a3 Bc5 (5...Ba5 A) 6.Bd3 d5 (6...Ne7 7.0-0 0-0 8.Re1 d5 9.Nc3 d4 10.Ne2-/+; 6...Nh6 7.0-0 0-0 8.Nc3 d5 9.ed5 cd5 10.Be2-/+; 6...d6 7.0-0 Ne7 8.Bc4 d5 9.ed5 cd5 10.Be2-/+) 7.ed5 cd5 8.0-0 Ne7 9.Nc3 0-0 10.Be2-/+; B) 6.Nc3 d5 (6...Ne7 7.Rb1 d5 8.ed5 Bc3 9.Bc3 Nd5 10.Bb2-/+) 7.ed5 cd5 8.Be2 Ne7 9.0-0 0-0 10.Rb1-/+; C) 6.c4 Nh6 (6...d6 7.Be2 Ne7 8.0-0 f5 9.ef5 0-0 10.f6-/+; 6...Ne7 7.Be2 0-0 8.Qb3 d5 9.cd5 cd5 10.ed5+=; 6...d5 7.cd5 cd5 8.ed5 Qd5 9.Nc3 Bc3 10.dc3-/+; 6...Na6 7.Be2 d6 8.0-0 f5 9.ef5 Bf5 10.Nc3-/+) 7.Be2 d6 8.0-0 f5 9.Qc2 fe4 10.Qe4-/+; D) 6.Be2 Ne7 (6...d5 7.ed5 cd5 8.0-0 Ne7 9.d4 e4 10.Nfd2-/+) 7.0-0 d5 8.ed5 cd5 9.d4 e4 10.Nfd2-/+) 6.Bd3? (6.d4 A) 6...ed4 7.Bd4 Bd4 8.Qd4 (8.Nd4 d5 9.Qh5 Kf8 10.ed5+=) 8...d5+= 9.Nbd2 Bg4 10.ed5+=; B) 6...Qb6 7.dc5 Qb2 8.Nbd2 Qc3 9.Bc4 Qa5 10.Nh4+=) 6...b6 (6...Qb6!? 7.Nc3 Bf2 8.Kf1–+) 7.c3 d5 8.Qa4 b5 9.Bb5? (9.Qb3 f5! 10.Ne5 fe4-/+) 9...Bf2! 10.Kf2 de4?? (better is 10...Qb6 11.d4 de4 (11...Qb5?! 12.Qb5 cb5 13.ed5=; 11...cb5?! 12.Qc2-/+) 12.Bc6 Qc6 13.Qc6 Nc6-/+) 11.Bc6+- Nc6 12.Qc6 Bd7 13.Qe4 Rc8 (better is 13...Qb6 14.Kg3 Rb8+/-) 14.Rd1?? (better is 14.d4+-) 14...Qb6= 15.d4 Qb2 16.Nbd2 Bc6 (16...Rc3 17.de5 Qb6 18.Nd4=) 17.Qf5 (better is 17.Qg4 Ne7 18.Qg7+/-) 17...Ne7+= 18.de5?? (better is 18.Qg4 Bf3 19.gf3 Qc3 20.Ne4 Qb2 21.Kg1+=) 18...Nf5–+ 0–1. mgokhale (1930) – luciole (1920), net–chess.com, 2011. (=1.e4 e5 2.b4 c6 3.Bb2 f6)

5.c3 Bd6 (5...Be7 6.c4+= Bc5 (6...d5 7.cd5 cd5 8.ed5 Qd5 9.Nc3) 7.d4 Qb6 8.Qb3 ed4 9.Qb6+=; 5...Ba5 6.d4 d5 7.Qe2 ed4 8.ed5 (8.Nd4 Ne7 9.ed5) 8...Ne7 9.Nd4-/+) 6.Bc4 (better is 6.d4+= ed4 (6...Bc7 7.Bd3 ed4 8.Nd4 d5 9.ed5=) 7.Nd4 Be5 (7...Qc7 8.Bc4 Ne7 9.Qh5) 8.Nf5 Qb6 9.Bc1=) 6...h6?? (6...Bc7!?+= 7.Qb3 Ne7 8.Ba3 (8.Bf7 Kf8 9.Bc4) 8...d5 9.ed5-/+; 6...b5 7.Bb3 (7.Bg8 Rg8 8.d4 Qe7 9.0-0+=) 7...Bc7 8.d4 Ne7 9.Qe2+=(9.de5); 6...Be7 7.Qb3 Nh6 8.d4 b5 9.Bd3=) 7.0-0 (7.Ne5!? Qe7 8.Qh5 Kd8 9.Nf7 Kc7+-) 7...a5?? (7...Ne7 8.d4 ed4 9.e5 Be5 10.Ne5 fe5 11.Qh5 g6 12.Qe5=) 8.Qb3 (better is 8.Ne5 Ne7 9.Nf7 Bh2 10.Kh2 Qc7 11.e5+-) 8...Qe7 (8...a4 9.Qd1 Ne7 10.Nh4=) 9.Re1 (9.Nh4 b5 10.Bb5+/- (10.Bg8?! a4 11.Nf5 ab3 12.Ne7 Be7 13.Bb3 d6=)) 9...a4 10.Qc2 b5 (10...a3 11.Bc1 b5 12.Nh4 bc4 13.Ng6=) 11.Bg8 (11.Nh4!? a3 12.Bc1 bc4 13.Ng6=) 11...Rg8+= 12.d3 g5 13.h3 (13.d4 Ba6+=) 13...Bc5 (13...g4 14.hg4 Rg4 15.Kh1-/+) 14.Nbd2 (14.d4 Bd6+=) 14...d6 15.g4? (15.d4 Bb6-/+) 15...Na6 (15...h5!? 16.gh5 Qh7 17.d4–+) 16.a3 (16.d4 a3 17.Bc1 Ba7-/+) 16...Qa7 (16...h5 17.d4 hg4 18.hg4–+) 17.Re2 (17.d4 Bb6 18.c4 h5+=) 17...Be6 (17...h5 18.d4 hg4 19.hg4 Bb6–+) 18.Rae1? (18.d4 Bb6 19.c4 h5 20.cb5 cb5 21.Qc6 Ke7 22.gh5 Bd7–+ (22...ed4?! 23.Qb5 g4 24.Nh4+=)) 18...Rb8 (better is 18...h5!? 19.d4 hg4–+) 19.d4-/+ ed4?? (better is 19...Bb6-/+) 20.cd4+- Bb6 21.Qc6 (better is 21.d5 Bf7 22.Qc6 Qd7 23.Bf6 Qc6 24.dc6+/-) 21...Bd7? (better is 21...Qd7 22.Qd7 Bd7+/-) 22.Qd6 Bc7 23.Qf6?? (better is 23.Qd5 Rg7 24.e5+-) 23...Rb6-/+ 24.e5 Rf6 25.ef6 Kf7?? (better is 25...Kd8 26.Ne5 Be5 27.de5 Nc7-/+) 26.d5?? (better is 26.Re7 Kf8 27.Ne5 (27.Rd7?! Bh2 28.Kh2 Qd7=) 27...Be5 28.de5+-) 26...Bb6?? (better is 26...Bd6 27.Re7 Be7 28.Ne5 Ke8 29.Nd7 Qd7 30.Re7 Qe7 31.fe7 Ke7-/+) 27.Ne5 Kf6 (27...Kf8 28.f7 b4+-) 28.Nc6 (28.Nd7 Kg6 29.Re6 Kh7 30.Re7 Rg7 31.Rg7 Kh8 32.Re8) 28...Kf7 (28...Kg6 29.Re6! Be6 30.Re6 (30.Na7?! Bd5 31.Nb5 Nc5+/-) 30...Kf7 31.Rf6 Ke8 32.Na7 Ba7 33.Ra6+-) 29.Na7 Re8 (29...Bc5 30.Ne4 Ba7 31.Nf6+-) 30.Ne4 (better is 30.Re8 Be8 31.Nc8 Bc5+-) 30...Rf8 (30...Bc7 31.Nf6 Re2 32.Re2+-) 31.Nd6 (better is 31.Nf6 Bc5 32.Nd7 Rd8 33.Nc5 Nc5 34.Re7 Kf8+-) 31...Kg8 32.Nab5 (better is 32.Re7 Rf2 33.Rg7 (33.Rd7 Re2 34.Kh1 Re1 35.Kg2 Re2 36.Kf1 Rf2 37.Ke1 Rb2+=) 33...Kf8 34.Kh1+- (34.Rd7?! Re2 35.Kh1 Re1 36.Kg2 Re2 37.Kf1 Rf2 38.Ke1 Rb2+/-)) 32...Nc5 (32...Bc5 33.Bd4 Rb8 34.Rc2 Bb5 35.Bc5+-) 33.Re3 (better is 33.Re7 Ne6 34.de6 Bf2 35.Kh2 Be8 36.Rg7 Kh8+-) 33...Nb7 (33...Nd3 34.Bd4 Ne1 35.Re1+-) 34.Nb7 (better is 34.Re7 Rf2 35.Bd4 Bb5 36.Bb6 Rf1 37.Rf1 Nd6+-) 34...Be3 (34...Bb5 35.Nd6 Ba6 36.Nf5 Be3 37.Re3+-) 35.Re3 Bb5 36.d6 (36.Re7 Rf3+-) 36...Rf7 37.Nc5 (37.Re7 Bd7 38.Rf7 Kf7+-) 37...Kh7 (37...Bc6 38.Rd3 Bd7 39.Bf6+-) 38.Re7 Re7 39.de7 Kg8 40.Be5 (better is 40.Ne4!? Bc6 41.Nd6 Kh7+-) 40...Kf7 41.Bd6 Ke8 42.Ne4 (better is 42.Kg2+-) 42...Bd3 (42...Bc6 43.Ng3 Bd7+-) 43.Nf6 Kf7 44.e8Q Kf6 45.Qe7 Kg6 46.Kg2 Bc4 47.Qe4 Kf7 48.Qc4 Ke8 49.Qc7 h5 50.Qe7 1–0. philstar99 – gordiemac, ChessWorld.net, 2009.

5.Bc3 Bc3 (5...Ba5 6.d4 d6 7.Be2 Ne7 8.de5 de5 9.Qd8+=; 5...Be7 6.d4 d5 7.Nbd2 de4 8.Ne4 f5 9.Ng3+=) 6.Nc3 d5 7.ed5 cd5 8.d4 e4 9.Nd2-/+.

5.Bc4 d5 6.ed5 cd5 7.Bb3 Ne7 8.0-0 Nbc6 9.c3 Bd6 10.d4 e4 11.Nfd2 f5 12.Re1 (12.Qh5 g6 13.Qh4 0-0-/+) 12...Be6 13.Nf1 0-0 14.Qh5 Bf7 15.Qg5 h6 16.Qe3 b5 17.Qc1 Na5 18.Bc2 Nc4 19.Nbd2 Ng6 20.Nb3? (20.Nc4!? bc4 21.Rb1-+) 20...Bf4 (20...f4 21.Nfd2-+) 21.Ne3? (better 21.Qb1-+) 21...Qg5 22.Nc5 (22.g3 Nh4 23.Bd1 Ne3 24.Re3 Nf3 25.Bf3 ef3-+) 22...Rfd8 (22...Nh4!? 23.g3 Nf3 24.Kf1 Nh2 25.Kg2 Ne3 26.Re3-+) 23.a4 (23.g3 Nh4 24.Bd1 Ne3 25.Re3 Re8-+) 23...a6 (better 23...Nh4!? 24.g3 Nf3 25.Kf1 Nh2 26.Kg2 Ne3 27.Re3-+) 24.ab5 ab5 25.Ra8 Ra8 26.Bb3 (26.g3 Nh4 27.Bd1 Ra2-+) 26...Be3 (better 26...Nh4!? 27.g3 Nf3 28.Kf1 Nh2 29.Kg2 Ne3 30.Re3-+) 27.fe3 f4 (better 27...Nh4 28.Re2 Nf3 29.Kh1 Nh2 30.Bc4 Ng4-+ (worse 30...dc4 31.Qd1 Ng4 32.g3-+; worse 30...bc4 31.Kh2 Qh5 32.Kg1 Qe2 33.Ba3-+)) 28.Bc4 bc4 (28...dc4?! 29.Ne4 Qh4 30.Nd6=+) 29.ef4 Nf4 30.g3 Nh3 31.Kg2 Qh5 32.Qe3. alessandrocarvalhaes (1850) - berrakov12 (1865), lichess.org, 2020.

4.f4 d6

5.Qh5 g6 6.Qh4 Bg7 7.Bc4 Ne7 8.fe5 de5 9.Nf3 Nd7 10.0-0 (10.a3!?=) 10...Qb6=+ 11.Kh1 Qb4 12.Bb3 Nc5 13.Ba3 Qb6 14.Bc5 (14.Bc4 Ne6=+) 14...Qc5-/+ 15.Nc3 Qd6 16.Rad1 Bd7 (16...f5 17.Rfe1-/+) 17.d4=+ Qb4 18.de5 fe5 (18...Qc3 19.Rd3 Qb2 20.Rfd1+/-) 19.Bf7 (19.Ng5!? 0-0-0 20.Nf7+/-) 19...Kf7= 20.Rd7 Ke8 21.Rfd1 h6? (better 21...Rf8=) 22.R1d6+- g5?? (22...Bf8 23.Qf6 Qc3 24.Qh8 Qa1 25.Rd1 Qa2 26.Ne5 Qe6+-) 23.Qg4 (23.Qh5 Ng6 24.Qg6 Kf8 25.Qf7) 23...Qc3 (23...Qd6 24.Rd6 Kf8+-) 24.Re7! Ke7 (24...Ke7 25.Rd7 Mate attack) 25.Qe6 (25.Rd7 Kf8 26.Qf5 Bf6 27.Qf6 Ke8 28.Qe7) 25...Kf8 26.Rd7 Qa1 27.Ng1 Qf1 (27...Qg1 28.Kg1 Rd8 29.Rd8) 28.Qe7 (28.Qe7 Kg8 29.Qg7) 1-0. carlos78 (2205) - itsmagic (2085), Rated Classical game, lichess.org, 2014.

5.f5 g6

6.Nc3 d5 7.a3 d4+=.

6.c4 d5 7.cd5 cd5 (7...Bb4 8.a3 Bd6 9.Nc3 Ne7 10.dc6 Nbc6 11.Rc1+=) 8.fg6 hg6 9.ed5 Qd5 10.Nc3+= Qd8 11.a3+=.

6.c4 Nh6 7.Nc3 (7.d4 A) 7...ed4 8.Qd4 (8.fg6 hg6 9.Qd4 Nd7= 10.Nd2 Ne5 11.Ngf3+=) 8...Nd7 9.Be2 Qe7 10.fg6 hg6 11.Nf3=; B) 7...gf5 8.Qh5 Ke7 9.c5 fe4 10.Nd2 Bf5 11.Qh4+=; 7.fg6 hg6 8.Nf3 d5 9.cd5 Bb4 10.Qb3 Bd6 11.Nc3=; 7.Bd3 gf5 (7...Rg8 8.fg6 hg6 9.Nf3 Be6 10.Nc3 g5 11.h3=; 7...Qb6 8.a3 a5 9.b5 Na6 10.Nc3 Nc5 11.Bc2=; 7...Na6 8.a3 Rg8 9.fg6 Rg6 10.Qe2 Qb6 11.Nf3=; 7...a5 8.b5 Rg8 9.fg6 Rg6 10.Qe2 Bg4 11.Nf3=; 7...Qd7 8.fg6 hg6 9.Nf3 Qg4 10.0-0 Na6 11.a3=) 8.Qh5 Nf7 9.ef5 d5 10.a3 Rg8 11.g4+=) 7...gf5 8.Qh5 Ke7 9.Be2 (9.Nf3 fe4 10.Ne4 Bg7 11.c5+=) 9...Qe8 (9...Rg8 10.Bf3 Be6 11.ef5-/+) 10.Qh4 (10.Qe8 Ke8 11.Nf3+=) 10...Qg6 (10...Rg8 11.g3+=) 11.Nf3 Qg4 (11...a5 12.ba5 Rg8 13.Rg1+=) 12.ef5 (12.Qg4 fg4 13.Nh4 a5=) 12...Bf5 (12...Qh4 13.Nh4 Nf5 14.Nf3+=) 13.Qf2= Qg8 14.Nh4 (14.0-0 Ng4 15.Qe1 Be6=) 14...Be6+= 15.0-0 Nd7 16.d4 (16.Ne4 f5 17.Nc3 Kd8-/+) 16...Bc4-/+ 17.de5 de5 18.Rad1 Bg7 (18...Ba2 19.Na2 Qa2 20.Nf5 Ke8 21.Be5=) 19.b5 (19.Bc1 Be2 20.Qe2 Kd8+=) 19...Bd5 (19...cb5!? 20.Nb5 Ba2 21.Na7 Bb3-/+) 20.Ba3 Kd8 21.Nd5 (21.Bf3 Bf3 22.Nf3 Qc4=) 21...cd5 22.Bf3 (better is 22.Qf3 e4 23.Qb3=) 22...Nb6 (22...e4!? 23.Be2 Qf7+=) 23.Bd5 Nd5 A pinning theme (23...Qd5 A pinning theme 24.Rd5) 24.Qc5 Qf7 (better is 24...Ke8+=) 25.Rd5+/- Ke8 26.Re5! (26.Re5 fe5 27.Rf7 Kf7 28.Qe7 Kg8 29.Qb7+-) 1–0. Adam,Stefan – Wilting,W, corr SOK–90–54, 1990.

6.Bc4 d5!? 7.Bd3 Bb4-/+.

6.Bc4 Nh6 7.Nc3= gf5 8.Qh5 Ke7 (8...Kd7 9.Nf3 fe4 10.Ne4 Kc7=) 9.Be2?? (better is 9.Nge2+/-) 9...Qe8 10.Qh4 Qg6 11.Nf3 Qg4 (11...Na6 12.0-0 fe4 13.Ne4+=) 12.ef5 (12.0-0!? Qh4 13.Nh4=) 12...Bf5= 13.Qf2 (better is 13.0-0=) 13...Qg8?? (better is 13...Qb4 14.0-0-0 Be6-/+) 14.Nh4+= Be6 15.0-0 Nd7 16.d4 (16.d4 Ng4 17.Nf5 Bf5 18.Qf5+=) 1–0. Adamski,Jan – Computer SuperConstellation4, corr, 1990.

6.d4 Qe7=.

4.f4 Qe7

5.a3 ef4 6.Qh5 g6 7.Qe2 Bg7 8.Nf3 d6 9.d3+=.

5.Nc3 Qb4 6.Rb1 A) 6...Qa5 7.Qh5 (7.fe5 fe5 8.Nf3 Nf6 9.Be2 b5 10.Ne5+=; 7.Nh3 d6 8.Bc4 Nh6 9.Qh5 Kd8 10.Be2+=; 7.Bc4 ef4 8.Nh3 Ne7 9.Nf4 Qg5 10.Qf3+=; 7.f5 d5 8.Qh5 Kd8 9.ed5 cd5 10.Bb5-/+) 7...g6 8.Qf3 ef4 9.Qf4 Bc5 10.Bc4=; B) 6...Qc5 7.fe5 (7.Qh5 g6 8.Qf3 b5 9.a3 a5 10.fe5+=; 7.Nge2 d6 8.h3 Ne7 9.fe5 de5 10.Nc1-/+; 7.Nce2 d6 8.a3 Ne7 9.d4 ed4 10.Nd4+=; 7.g3 ef4 8.gf4 Qe7 9.Qh5 g6 10.Qe2+=) 7...fe5 8.Qh5 Kd8 9.Nf3 d6 10.Ng5+=; C) 6...d6 7.a3 (7.Qh5 g6 8.Qh4 Qc5 9.Nge2 Be6 10.f5+=; 7.f5 g6 8.Nf3 gf5 9.Ba1 Qa5 10.ef5-/+; 7.Qf3 ef4 8.Nh3 g5 9.Nf2 Qa5 10.Qh5+=; 7.fe5 de5 8.Qh5 g6 9.Qd1 Be6 10.Ba1-/+) 7...Qa5 8.Qh5 g6 9.Qh4 Be6 10.f5+=; D) 6...ef4 7.Nh3 (7.Qg4 Qa5 8.Qf4 b5 9.e5 b4 10.ef6-/+; 7.Qf3 Qa5 8.Qf4 b5 9.e5 b4 10.ef6-/+; 7.Nge2 Qd6 8.Nc1 Ne7 9.Be2 b5 10.0-0-/+; 7.Qh5 Kd8 8.Nh3 g5 9.Nf2 Qe7 10.Be2+=) 7...Qd6 8.Qf3 g5 9.Nd1 Bh6 10.Bc4+=; E) 6...Qe7 7.Qh5 (7.Nge2 b5 8.a3 d6 9.f5 Nh6 10.Ng3+=; 7.Bd3 ef4 8.Nge2 f3 9.gf3 b5 10.Nd4+=; 7.fe5 fe5 8.Qh5 g6 9.Qh3 b5 10.Nf3+=; 7.Qg4 ef4 8.Nf3 b5 9.Bd3 Na6 10.Qf4-/+) 7...g6 8.Qf3 ef4 9.Qf4 d6 10.Nf3+=.

5.Nc3 ef4!? A) 6.Qg4 Qb4+= (6...Nh6 7.Qf4 Qb4 8.Rb1 d5 9.Nf3 de4 10.Ne4+=) 7.Rb1 Qa5 8.Qf4 b5 9.e5 b4 10.ef6-/+; B) 6.b5 d5 7.bc6 (7.Qh5 g6 8.Qe2 d4 9.Nd1 c5 10.c3+=; 7.Nge2 de4 8.Nf4 Bf5 9.Qh5 g6 10.Qe2+=; 7.Qe2 d4 8.Nd1 f5 9.e5 c5 10.Nh3-/+) 7...de4 8.Qh5 g6 9.Qe2 bc6 10.Ne4=; C) 6.Qh5 C1) 6...g6 7.Qf3 (7.Qg4 Qb4 8.Rb1 Bd6 9.Nge2 Be5 10.Qf3-/+; 7.Qh4 d5 8.Qf4 Qb4 9.Rb1 d4 10.Nd1-/+; 7.Qe2 Qb4 8.Rb1 Qc5 9.Qf3 b5 10.a3-/+; 7.Qh3 Qb4 8.Rb1 b5 9.Nge2 Qd6 10.Qf3-/+) 7...Qb4 8.Rb1 g5 9.h4 Kd8 10.hg5=; C2) 6...Kd8 7.Nge2 (7.b5 d5 8.bc6 bc6 9.Nge2 de4 10.Qa5+=; 7.Qf3 d5 8.a3 de4 9.Qf4 f5 10.Rd1+=; 7.Qg4 Qb4 8.Rb1 d5 9.Qf4 de4 10.Qe4-/+; 7.a3 d5 8.Nge2 de4 9.Nf4 g5 10.Nh3+=) 7...Qb4 8.Rb1 Qd6 9.Qf3 b5 10.Nf4+=; D) 6.Qf3 D1) 6...d5 7.Qf4 (7.a3 f5 8.Qf4 fe4 9.Nge2 Nf6 10.Nd4-/+; 7.b5 f5 8.bc6 bc6 9.Qf4 fe4 10.Rb1-/+; 7.0-0-0 Nh6 8.Re1 f5 9.Qf4 Nf7 10.d3+=) 7...Qb4 8.Rb1 Be6 9.Nf3 de4 10.Ba1+=; D2) 6...Qb4 7.Rb1 Qa5 8.Qf4 b5 9.e5 b4 10.ef6-/+; E) 6.a3 d5 7.Qe2 (7.Nge2 de4 8.Nf4 Nh6 9.Be2 Qc7 10.Bh5+=; 7.Qh5 Kd8 8.Nge2 de4 9.Nf4 Nh6 10.Qe2+=; 7.Qf3 f5 8.Nge2 fe4 9.Qf4 Nf6 10.Nd4-/+) 7...d4 8.Nd1 c5 9.bc5 Nc6 10.Nf3=.

5.Qh5 Kd8 6.Qf3 ef4 7.Ne2 g5 8.a3 d6 9.Nec3+=.

5.Nc3 d6

6.b5 A) 6...a6 7.bc6 (7.fe5 ab5 8.ed6 Qd6 9.Qh5 g6 10.Qh4=) 7...bc6 8.fe5 fe5 9.Nf3 Nf6 10.Bc4+=; B) 6...ef4 7.Qh5 (7.bc6 bc6 8.Qh5 g6 9.Qf3 g5 10.Qh5=; 7.Qf3 f5 8.bc6 bc6 9.Qf4 Nf6 10.d3+=) 7...g6 8.Qf3 g5 9.Be2 Be6 10.bc6=.

6.fe5 A) 6...fe5 7.Bd3 (7.Be2 Nf6 8.a3 Qf7 9.Nf3 Qg6 10.0-0=; 7.b5 Nf6 8.Nf3 d5 9.ed5 cd5 10.Be2=; 7.Qh5 g6 8.Qf3 Nf6 9.Qe3 d5 10.ed5=; 7.Nf3 Nf6 8.Bd3 Qc7 9.a3 Be7 10.0-0=) 7...Nf6 8.Nf3 Qd8 9.a3 Be7 10.Be2=; B) 6...de5 7.a3 (7.b5 Be6 8.Nf3 Qd7 9.bc6 Nc6 10.Bb5+=) 7...Be6 8.Nf3 b5 9.d4 ed4 10.Nd4=.

6.Qf3 A) 6...d5 7.fe5 (7.a3 de4 8.Ne4 ef4 9.Ne2 Bf5 10.d3=; 7.ed5 Qb4 8.Rb1 Qf4 9.Qf4 ef4 10.Nge2=; 7.b5 de4 8.Ne4 f5 9.Nc3 ef4 10.Nge2=) 7...Qe5 8.a3 f5 9.Qh5 Kd8 10.Nf3=; B) 6...ef4 7.a3 (7.Qf4 d5 8.b5 d4 9.Nd1 c5 10.c3=; 7.b5 f5 8.bc6 bc6 9.Qf4 Nf6 10.d3+=; 7.Nge2 d5 8.a3 de4 9.Ne4 Bf5 10.d3=) 7...Nh6 8.Qf4 a5 9.b5 f5 10.Nge2=; C) 6...Be6 7.Be2 (7.Nh3 Nd7 8.Be2 Qd8 9.a3 Qb6 10.f5+=; 7.f5 Bf7 8.b5 Qd8 9.Rb1 Ne7 10.bc6=; 7.Nge2 Na6 8.a3 Nc7 9.f5 Bf7 10.Qd3=; 7.b5 ef4 8.Nge2 Nh6 9.Nf4 Bg4 10.Qe3+=) 7...a5 8.b5 a4 9.Nh3 Nd7 10.a3+=; D) 6...Nh6 7.a3 (7.Nge2 Bg4 8.Qe3 Nd7 9.h3 Be2 10.Be2=; 7.Be2 d5 8.fe5 Qb4 9.Rb1 d4 10.Nd1+=; 7.Qh5 Qf7 8.Qh4 d5 9.fe5 d4 10.Nce2=; 7.fe5 de5 8.Qh5 Nf7 9.b5 Be6 10.Nf3=) 7...Bg4 8.Qf2 ef4 9.Qf4 Nd7 10.Be2=.

6.f5 d5 7.ed5 (7.Qh5 Qf7 8.Qf7 Kf7 9.ed5 Bb4 10.Bc4+=) 7...Bf5 8.b5 cd5 9.Nd5 Qd7 10.Ne3=.

6.f5 Kd8 7.Qf3 (7.b5 g6 8.g4 d5 9.bc6 bc6 10.ed5=; 7.a3 g6 8.Qf3 gf5 9.ef5 Qd7 10.g4=; 7.g4 d5 8.a3 h5 9.ed5 hg4 10.Qg4=; 7.Qh5 Nh6 8.b5 d5 9.bc6 bc6 10.h3+=) 7...g6 8.a3 Nh6 9.g4 d5 10.ed5=.

6.f5 Qf7 7.d4 (7.Qf3 d5 8.ed5 Bb4 9.dc6 Nc6= 10.Nd5=; 7.a3 d5 8.Bd3 Ne7 9.Qe2 g6 10.ed5=; 7.g4 d5 8.ed5 Bb4 9.dc6 Nc6 10.Ne4=; 7.b5 d5 8.bc6 bc6 9.Qf3 Ne7 10.ed5=; 7.Bd3 d5 8.a3 Ne7 9.Qe2 g6 10.ed5=) 7...d5 8.de5 (8.a3 de4 9.g4 h5 10.Ne4=) 8...fe5 9.Nf3 (9.a3 de4 10.g4 Nf6=) 9...Qf6 (9...Bb4 10.Ne5 Qf6 11.Qd4-/+; 9...de4 10.Ne4+=) 10.ed5 (10.a3!?+=) 10...Bb4+= 11.Bc4 (11.a3 Ba5 12.Qe2 Bf5 (worse is 12...Qf5 13.Ne5 Kf8 14.d6+/-) 13.Ne5 Ne7=) 11...e4 12.Nd4 cd5 (worse is 12...Bf5 13.0-0 Ne7 14.Ne4+-) 13.Qh5 (13.Bd5 A) 13...Bf5?? 14.Bb7 Ne7 A1) 15.Nf5? Bc3 16.Ke2 Nf5–+ (16...Bb2? 17.Nd6 Kd7 18.Ne4 Qd4 19.Rb1+-); A2) 15.Ba8+-; B) 13...Ne7 14.Ndb5 B1) 14...Bf5 15.Bb7 a6 16.Nc7 Kf8 17.0-0 (17.Na8 Bc3 18.Bc3 Qc3 19.Kf1 Ke8=) 17...Qb6 18.Kh1 Qb7 19.Na8+-; B2) 14...Nf5 15.Qh5 g6+=) 13...Kf8 (13...Ke7 14.Ba3 Na6–+ (14...dc4?? 15.Bb4 Kd8 16.Rd1+-; 14...Qd4 15.Bb4 Kd8 16.Rd1 Qc4 17.Nd5+-)) 14.Bd5= g6 (14...Ne7 15.Bb3 Nf5 16.0-0-0 Nd4 17.Rd4+/-) 15.fg6 (15.Qd1 Qg5 16.Qe2 Qh4 17.g3+-) 15...hg6 16.Qh8? (better is 16.Qd1!? Qh4 17.Kf1+=) 16...Qh8–+ 17.0-0 Ke7?? (better is 17...Ke8 18.Ne4 Qe5-/+) 18.Ne4= Qe5 19.Bg8?? (19.Nc6 bc6 20.Rf7 Ke8 21.Be5 cd5=) 19...Qe4+= 20.c3 Qe3 21.Kh1 Qd2 (better is 21...Bc3!? 22.Bc3 Qc3 23.Rae1 Qe1 24.Re1 Kf6 25.Rf1 Ke5 26.Nf3 Kf6 27.Nd2 Kg7+=) 22.Rae1+/- Kd8 (22...Kd7 23.Re2 Qd3 24.Bb3+/- (24.cb4?! Kd8+-)) 23.Ne6 Be6 24.Rd1 Qd1 25.Rd1 Bd7 (25...Kc7 26.Be6 Bd6 27.Bf7+-) 26.cb4 Ke7 27.Re1 Kf8 (27...Kd6 28.Be5 Kc6 29.a4+-) 28.Bb3 Nc6 29.Bc1 Kg7 30.b5 1–0. Schoenwaelder,B – Stroede, Baden–Baden, 1985.

6.f5 g6 7.fg6 (7.Bd3 Nh6 8.fg6 hg6 9.Nf3 Be6 10.b5=; 7.Qf3 d5 8.fg6 hg6 9.ed5 Qb4 10.Rb1=; 7.b5 gf5 8.bc6 bc6 9.Qh5 Qf7 10.Qf7+=; 7.g4 d5 8.a3 de4 9.Ne4 gf5 10.gf5-/+) 7...hg6 8.Nf3 Be6 9.b5 f5 10.bc6=.

6.f5 Nh6 7.Bd3 (7.Qh5 Qf7 8.Qf7 Nf7 9.Bd3 g6 10.fg6=; 7.b5 d5 8.ed5 Nf5 9.dc6 bc6 10.Rb1=; 7.a3 d5 8.ed5 Nf5 9.dc6 Nc6 10.Bc4=; 7.Rb1 d5 8.ed5 Bf5 9.a3 Qf7 10.dc6=) 7...d5 8.ed5 Nf5 9.a3 c5 10.bc5=.

6.Qh5 A) 6...Kd8 7.Nge2 (7.fe5 fe5 8.Nf3 Nf6 9.Qg5 Nbd7 10.Bc4=; 7.Qf3 ef4 8.Qf4 d5 9.a3 de4 10.Ne4=; 7.Qh4 ef4 8.Qf4 d5 9.a3 f5 10.d3=; 7.f5 Nh6 8.b5 d5 9.ed5 cb5 10.Bb5=) 7...ef4 8.Qf3 Nh6 9.Qf4 Na6 10.b5=; B) 6...g6 7.Qf3 (7.Qh4 ef4 8.Qf4 d5 9.Qe3 Bh6 10.Qc5=) 7...ef4 8.Qf4 d5 9.Qe3 Bh6 10.Qc5=.

5.Qf3 Qb4

6.Bc3 Qa4 7.fe5 fe5 8.Qh5 Kd8 9.Qe5 Qc2 10.Na3 Qa4 11.Nc4 b6 12.Qg5 Ne7 13.Bg7 Rg8 14.Nd6 Qb4=+.

6.Bc3 Qa4 7.fe5 fe5 8.Qh5 Kd8 9.Be5 Qe4 10.Ne2 d6=+.

5.Qh5 g6

6.Qf3 ef4 7.Ne2 Qb4 8.Ba3 Qa4 9.Bf8 Kf8 10.Nbc3 Qa3+=.

6.Qf3 ef4 7.Ne2 Qb4 8.Ba3 Qa4 9.Bf8 Kf8 10.Nbc3 Qc2?? 11.Rb1+- c5 12.Qf4 Ke8 13.Nc1 Nc6+-.

4.f4 ef4

5.a3 Qe7 (5...d5 6.Qh5 g6 7.Qe2 de4 8.Nc3 Qe7 9.Ne4=) 6.Qh5 g6 7.Qe2 Bg7 8.Nf3 d6 9.d3+=.

5.b5 d5 6.Qh5 g6 7.Qe2 de4 8.Qe4 Qe7 9.Qe7+=.

5.Bc4 d5 6.ed5 cd5 7.Qh5 g6 8.Qd5 Qd5 9.Bd5 Bb4 10.Nf3 +=. Sokolski.

5.Nh3 Bb4-/+ 6.Nf4 (6.Qh5 g6 7.Qe2 Bd6 8.e5 fe5 9.Nf4 Ne7 10.Nd3-/+) 6...Qe7 7.Bd3 (7.Qe2 d6 8.c3 Bc5 9.d4 Bb6 10.Nd2+=) 7...Nh6 (7...d6 8.Qh5 Kd8 9.Bd4 d5 10.Ng6-/+) 8.a3 (8.0-0 Bc5 9.Kh1 d6+= 10.Nc3-/+) 8...Bc5-/+ 9.Qh5 (9.Nc3 d5 10.Qh5-/+) 9...Nf7 (9...Kd8 10.Be2-/+) 10.Rf1 (10.Nc3-/+) 10...d6 11.Nc3 Nd7 12.0-0-0 (12.Na4!?-/+) 12...Nde5–+ 13.Be2? (better is 13.h3–+) 13...g6 14.Qh4 g5 15.Qh5 gf4 16.d4 Bb6 17.de5 fe5 18.Na4 (18.g3 Be3 19.Kb1 Be6–+) 18...Be3 19.Kb1 Be6 20.g3 0-0-0 21.gf4 Bf4 22.Bg4 Ng5 23.Nc3 Kb8 24.Be6 Ne6 (24...Qe6?! 25.Rf4 ef4 26.Qg5+=) 25.Ne2 Rhg8 26.Bc1 Bc1 27.Rf7 (27.Rc1 Rdf8–+) 27...Qg5 28.Qh7 Be3 (28...Rh8 29.Rb7 Kc8 30.Qf7–+) 29.Rb7 Ka8 (29...Ka8 30.Rd3 Rh8–+) 0–1. Grehl,Siegfried – Kreuzer,Uwe, corr SOK–91–72, 1991.

5.Nh3 Bd6 6.Bc4 Qe7 7.0-0 Nh6 (7...Bb4 8.Bb3+=) 8.d4 (8.a3 b5 9.Bb3 a5 10.ba5 Be5 11.d4 Bc7 12.Nf4 Ra5+=; 8.Nf4 Kd8 (8...b5 9.Bb3 Bb4 10.Qh5 Nf7 11.Nd3 0-0 12.e5 Bc5+=; 8...Bf4 9.Rf4 Qb4 10.Bb3 d5 11.Qf3 Qb6 12.d4 Be6=) 9.Qe2 (9.a3 Qe4 10.Bd3 Qe7 11.Re1 Be5 12.Be5 fe5+=) 9...Bb4 10.c3 Ba5 11.Na3 d6 12.Rae1 Bg4+=) 8...Kd8 (8...Qe4?? 9.Re1 Qe3 10.Re3 fe3 11.Bc1+-; 8...Bb4?! 9.c3 Bd6 10.Nf4 Bf4 11.Rf4= d6 12.Bd3 Be6+=; 8...b5 9.Bd3 Bb4 10.c3 Ba5 11.a4 a6 12.Nf4 d6=) 9.e5 (9.Bd3 Bb4 (9...Bc7= 10.Qe1 d5 11.ed5 Bh3 12.Qe7 Ke7=) 10.Nf4 d6 11.c4 Ba5 12.Nd2 Bg4=; 9.Nf4 Qe4 10.Qd2 Ng4 11.Bd3 Qe3 12.Qe3 Ne3-/+) 9...Bb4 (9...fe5 10.de5 Be5 11.Be5 Qe5 12.c3 d5-/+) 10.Nf4 d5 11.ed6 Qe3 (worse is 11...Qd6 12.c3 b5 13.Bd3=; 11...Bd6 12.Qd2 Ng4-/+) 12.Kh1 Ng4 13.Nh3 (13.d5 Bc5 14.Rf3 Nf2 15.Rf2 Qf2 16.Ne6 Be6 17.de6 Qf4 18.e7 Kd7–+) 13...Re8 (13...Bd6 14.Bc1 Qe8 15.Re1-/+) 14.c3 (better is 14.Bc1!? Qe4 15.Bf7+=) 14...Bd6-/+ 15.Bc1 Qe7 16.Bf4? (better is 16.Nf4!?–+) 16...Bf4 17.Nf4 (17.Rf4 g5 18.Rf3 Ne3 19.Re3 Qe3–+) 17...Ne3 18.Qe2 Nf1 (18...g5 19.Nh3 Bg4 20.Rf3–+) 19.Qf1 Qe3 20.a4 Bg4 21.h3 (21.Ra2 Nd7–+) 21...Bf5 (21...Re4 22.hg4 Rf4 23.Qe2–+) 22.Na3 (22.Nh5 Be4 23.Ng7 Qh3 24.Kg1 Qe3 25.Qf2 Qc1 26.Qf1 Qf1 27.Kf1 Re7 28.Ne6 Kd7 29.Nc5 Kc7 30.Ne4 Re4–+) 22...Nd7 (22...Qc3 23.d5–+) 23.d5 (23.Bd3 Bd3 24.Nd3 Qd2–+) 23...Re4 (23...Qc3 24.Ne2 Qb2 25.dc6 bc6 26.Ra2–+) 24.Ne6 (24.Ne2 cd5 25.Bd5 Qe2 (25...Ra4?! 26.Qf5 Qe2 27.Bb7 Ra3 28.Ra3 Qd1 29.Kh2 Qd6 30.g3 Qa3 31.Ba8-/+) 26.Qf5 Re5 (26...Ra4?! 27.Bb7 Ra3 28.Ra3 Qd1 29.Kh2 Qd6 30.g3 Qa3 31.Ba8-/+) 27.Qh7 Qb2–+) 24...Be6 25.de6 Nb6 (25...Ne5 26.Qd1 Kc7 27.Ba2–+) 26.Bd3? (better is 26.Qd1 Ke7 27.a5 Qc3 28.ab6–+) 26...Re6–+ 27.Bf5 Re5 28.Rd1 Kc7 (28...Rd5 29.c4 Rd1 30.Qd1 Ke7 31.a5–+) 29.a5?? (better is 29.Nc4 Qc3 30.Ne5 Qe5 31.Re1–+) 29...Ra5 30.Nc2 Qe5 31.Nd4 Re8 0–1. Tagirov,Kajum K (1925) – Solomko,Viktor L, Sterlitamak op, 2008.

5.b5 Qe7

6.Qh5 g6 7.Qe2 a6 8.bc6 dc6 9.Qf3+=.

6.Nc3 d5

7.Qf3 f5 8.Qf4 de4 9.bc6 Nc6? 10.Nd5 Qc5 11.Nc7 Kf7 12.Na8+-.

7.bc6 de4

8.Qh5 g6 9.cb7 Qb7?! 10.Qd5 Qd5 11.Nd5=.

8.Qh5 g6 9.cb7 Bb7 10.Qb5 Bc6 11.Qc4 Bg7 12.0-0-0 f5-/+ 13.d4 Nf6 14.d5 Bd7 15.Qc7 Qb4 16.Nb5! f3 17.Qe5 Kd8 18.Qc7 Ke7 19.Bc3=+.

8.Qh5 g6 9.cb7 Bb7 10.Qb5 Bc6 11.Qc4 Bg7 12.Nge2!? Qb7 13.Nd4+=.

8.Qh5 g6 9.cb7 gh5?? 10.ba8Q Qb7 11.Qb7 Bb7+-.

8.Qh5 g6 9.cb7 gh5?? 10.ba8R?! Qb7 11.Bb5 Kd8 12.Rb8 Qb8-/+.

8.Qh5 g6 9.cb7 gh5?? 10.bc8Q Kf7 11.Qc4 Qe6 12.Nb5+-.

5.Bc4 Bb4

6.Qh5 g6

7.Qf3 Qe7

8.Ne2 a6 A) 9.c3 A1) 9...Bc5 10.d4 (10.Bb3 d5 11.ed5 Bf5 12.dc6 Nc6 13.d4-/+; 10.Qf4 Bd6 11.Qe3 b5 12.Bb3 c5 13.Bd5+=) 10...d5 11.ed5 Bd6 12.dc6 Nc6 13.0-0=; A2) 9...d5 10.ed5 Bc5 11.d4 Bd6 12.dc6 Nc6 13.0-0=; A3) 9...Bd6 10.d3 (10.Bb3 a5 11.a4 b6 12.0-0 Ba6 13.d4+=; 10.d4 b5 11.Bd3 g5 12.0-0 Qg7 13.c4+=; 10.0-0 b5 11.Bb3 g5 12.a4 Bb7 13.d3+=) 10...b5 11.Bb3 a5 12.a4 Ba6 13.ab5=; A4) 9...Ba5 10.Qf4 (10.Ba3 d6 11.Qf4 Bc7 12.0-0 d5 13.Be7+=) 10...d6 11.0-0 d5 12.ed5 cd5 13.Ba3+=; B) 9.Bb3 B1) 9...b5 10.0-0 (10.a3 Bc5 11.Qf4 d6 12.d4 Bb6 13.0-0+=; 10.c3 Ba5 11.Ba3 d6 12.Qf4 Bc7 13.0-0+=; 10.a4 Bb7 11.Qf4 Bd6 12.Qf3 c5 13.Bd5+=; 10.Qf4 d6 11.Bg8 Rg8 12.Bf6 g5 13.Qf3=) 10...g5 11.a4 Bb7 12.d3 d6 13.ab5=; B2) 9...g5 10.h4 (10.a3 Bd6 11.Nd4 g4 12.Qg4 Qe4 13.Ne2+=; 10.c3 Ba5 11.d3 Bb6 12.Nd2 d6 13.Qh5-/+) 10...gh4 11.a3 Bc5 12.d4 Bb6 13.Rh4=; B3) 9...d6 10.Qf4 (10.a3 Bc5 11.Qf4 b5 12.d4 Bb6 13.0-0+=; 10.0-0 g5 11.a3 Ba5 12.Bd4 b5 13.Nbc3+=; 10.Bd4 Nd7 11.Qf4 Nc5 12.Nbc3 Ne6 13.Be6+=) 10...Nd7 11.0-0 b5 12.a3 Ba5 13.Bd4=; B4) 9...Bd6 10.a3 (10.d4 g5 11.0-0 Bc7 12.Nd2 d6 13.Rab1+=; 10.0-0 g5 11.d4 b6 12.Nd2 Bc7 13.Rad1+=; 10.Nbc3 g5 11.Nd4 Be5 12.Nf5 Qf8 13.d4+=; 10.Nf4 Be5 11.Be5 fe5 12.Nd3 Nf6 13.0-0+=) 10...g5 11.Nd4 g4 12.Qg4 Qe4 13.Ne2+=; B5) 9...d5 10.ed5 Bf5 11.Nbc3 Bc3 12.Qc3 Bg4 13.Qd3+=; C) 9.a3 C1) 9...Bc5 10.Qf4 (10.d4 Ba7 11.Qf4 d6 12.0-0 d5 13.Bd3=; 10.Bb3 d6 11.Qf4 b5 12.d4 Bb6 13.0-0+=) 10...d5 11.ed5 Bf5 12.d3 Bd6 13.Qf3=; C2) 9...d5 10.ed5 (10.ab4 dc4 11.Bc3 g5 12.Na3 b5 13.h4+=) 10...Bd6 11.0-0 Bf5 12.dc6 Nc6 13.Qb3=; C3) 9...Bd6 10.Bb3 (10.0-0 b5 11.Bb3 g5 12.a4 Bb7 13.ab5+=; 10.d4 b5 11.Bd3 Bb7 12.a4 c5 13.dc5+=; 10.Ba2 g5 11.Nd4 g4 12.Qg4 Qe4 13.Kd1+=; 10.Nbc3 b5 11.Bb3 g5 12.Qh5 Kd8 13.Nd4+=) 10...g5 11.Nd4 g4 12.Qg4 Qe4 13.Ne2+=; D) 9.a4 d5 10.ed5 Bf5 11.Qf4 Bd6 12.Qf2 Bc2 13.dc6+=; E) 9.Qf4 E1) 9...d5 10.ed5 Bf5 11.Bb3 Bd6 12.Qh4 Nd7 13.dc6+=; E2) 9...d6 10.a3 (10.0-0 Be6 11.Be6 Qe6 12.Bf6 Nf6 13.Qf6=; 10.Bg8 Rg8 11.Bf6 g5 12.Qf3 Qf7 13.a3=; 10.a4 Nd7 11.0-0 Ne5 12.Bg8 Rg8 13.Qf6+=) 10...Bc5 11.Bg8 Rg8 12.Bf6 g5 13.Qf3=; E3) 9...Bd6 10.Qf3 (10.Qh4 Be5 11.Ba3 Qg7 12.d4 Bc7 13.0-0=) 10...Be5 11.Ba3 Qg7 12.d4 Bc7 13.0-0=.

8.Ne2 b5 9.Bb3 A) 9...d6 10.a4 (10.Qf4 g5 11.Qf3 Nd7 12.a3 Ne5 13.Qg3=; 10.a3 Bc5 11.Qf4 Be6 12.d4 Bb6 13.Nbc3+=; 10.0-0 g5 11.a4 ba4 12.Ra4 Bc5 13.d4+=) 10...Nd7 11.ab5 Ne5 12.Qf4 cb5 13.Nbc3+=; B) 9...Na6 10.Qf4 (10.0-0 g5 11.c3 Ba5 12.a4 b4 13.d4+=; 10.a3 Ba5 11.Qf4 Nc5 12.e5 f5 13.0-0+=) 10...Bd6 11.Qf3 Nc5 12.d3 Nb3 13.ab3+=; C) 9...Bc5 10.a4 (10.Qf4 d6 11.Bg8 Rg8 12.Bf6 Qe6 13.d4+=; 10.a3 d6 11.Qf4 Be6 12.d4 Bb6 13.0-0+=; 10.d4 Bb6 11.0-0 g5 12.Nd2 d6 13.a4+=) 10...ba4 11.Ra4 Ba6 12.Nf4 Bb5 13.Ra5=; D) 9...a6 10.Qf4 (10.a3 Bc5 11.Qf4 d6 12.d4 Bb6 13.0-0+=; 10.a4 Bb7 11.Qf4 Bd6 12.Qf3 c5 13.Bd5+=; 10.0-0 g5 11.a4 Bb7 12.d3 Bc5 13.d4+=; 10.c3 Ba5 11.Ba3 d6 12.Qf4 Bc7 13.0-0+=) 10...d6 11.0-0 Nd7 12.a3 Bc5 13.d4=; E) 9...a5 10.a3 (10.c3 Bd6 11.a4 Bb7 12.d3 g5 13.0-0+=; 10.a4 ba4 11.Ra4 Na6 12.c3 Nc5 13.Ra2-/+) 10...Bd6 11.0-0 g5 12.a4 Bb7 13.d3+=.

8.Ne2 d5 9.ed5 Bf5 10.dc6 (10.Qf4 Bd6 11.Qf2 Bc2 12.dc6 Nc6 13.Bg8+=; 10.a3 Bd6 11.dc6 Nc6 12.0-0 Bc2 13.Nf4-/+; 10.Qb3 Bg4 11.dc6 Nc6 12.Rf1 Bd6 13.Rf2-/+; 10.c3 Bd6 11.dc6 Nc6 12.0-0 0-0-0 13.d4-/+) 10...Nc6 11.Bd5+= Ne5 12.Qb3 0-0-0 13.Nbc3+=.

8.Ne2 d6 9.a3 Bc5 (9...Ba5 10.Qf4 Nd7 11.0-0 b5 12.Bb3 Ne5 13.d4+=) 10.Qf4 (10.d4 Bb6 11.Qf4 Bc7 12.d5 Ba5 13.Nbc3+=; 10.a4 h5 11.d4 Bb4 12.c3 Ba5 13.Qf4+=) 10...Nd7 11.d4 Bb6 12.Nd2 Rb8 13.0-0+=.

8.Ne2 d6 9.c3 Ba5-/+ (9...Bc5 10.d4 Bb6 11.Qf4 Bc7 12.Ba3 b5 13.Bd3+=) 10.d4 (10.Qf4 Bc7 11.Ba3-/+ f5 12.ef5 Bf5 13.g4-/+; 10.Ba3 g5 11.0-0 b5 12.Bb3 h5 13.d4-/+) 10...Be6 (better is 10...f5!?-/+ 11.Ba3 fe4 12.Qf4 Bc7 13.0-0-/+) 11.Be6= Qe6 12.Nf4 Qf7 13.0-0 Nd7 14.Ba3 Bc7 15.Nd2 Ne7 16.Qh3 Nf8 17.Nb3 (17.c4 Rb8=) 17...f5 18.ef5 gf5 (worse is 18...Nf5 19.Rae1 Kd8 20.g4+-) 19.d5 c5 (19...cd5 20.Rae1+=) 20.Rae1 0-0-0 21.c4 Rg8 22.Rf2 (22.Bb2 Nd7=) 22...Re8 23.Rfe2 (23.Bb2 Nfg6=) 23...Rg4 24.Qf3 Nfg6 25.Ng6 Rg6 (25...hg6 26.Qc3+=) 26.Kh1 b6 (26...Rg4 27.Qc3=) 27.Bb2 Rgg8 28.Re6 Ng6 29.Bf6 (29.Re8 Re8 30.Re8 Qe8 31.Qf5 Kb7=) 29...Kb8 (29...Re6 30.de6 (30.Re6? Nf8–+) 30...Re8 31.Qf5+/- (31.ef7?? Re1 32.Qf1 Rf1)) 30.Qf5+= Bd8 31.Rf1 Rgf8 32.Rd6 Bf6 33.Rd7 (33.Nc5 Bd4 34.Na6 Ka8 35.Qf7 Rf7 36.Rd8 Rd8 37.Rf7+=) 33...Re7+= 34.Nc5 Bd4 (34...Bc3!? 35.Na6 Ka8 36.Rd8 Rd8 37.Qf7 Rf7 38.Rf7 Rf8 39.Rf8 Nf8 40.Nc7 Kb7-/+) 35.Qf7= Rff7 (35...Ref7?? 36.Na6 (36.Rff7?! Bc5 37.Ra7 Rf7 38.Rf7 h6+-; 36.Rdf7?! Bc5 37.g4 Rf7 38.Rf7 h6+/-) 36...Kc8 37.Rff7+-) 36.Rd8 Kc7 37.Ne6 Kb7 38.Rb1 Bf6 (38...Be3 39.c5 Ne5 40.h3=) 39.c5 Re6 (39...Be5!?=) 40.de6+/- Bd8 (40...Rc7!? 41.cb6 ab6+/-) 41.ef7+- Kc6? (better is 41...Bc7+-) 42.Re1 bc5 (42...Kc7 43.cb6 ab6+-) 43.Re6 Kd7 44.Rg6! (44.Rg6 Be7 45.Rg8+-) 1–0. Adam,Stefan – Richter,Dieter, DDR–ch11 sf02 corr, 1981.

8.Ne2 d6 9.Rf1 A) 9...b5 10.Bg8 Rg8 11.Qb3 d5 12.Rf4 Rf8 13.ed5=; B) 9...Bc5 10.d4 (10.a4 Nd7 11.d4 Bb6 12.a5 Bc7 13.Qf4+=; 10.Qf4 Nd7 11.Bb3 g5 12.Qf3 Ne5 13.Qh5+=) 10...Bb4 11.Kf2 Nh6 12.Nf4 Bg4 13.Qb3=; C) 9...g5 10.h4 (10.Qb3 d5 11.ed5 Nh6 12.Nbc3 Ng4 13.dc6+=) 10...b5 11.Bb3 gh4 12.Qh5 Kd8 13.Rf4=; D) 9...d5 10.ed5 Bf5 11.Qb3 Nh6 12.Rf4 Bd6 13.Rf3+=; E) 9...Nd7 10.Qf4 (10.Bg8 Rg8 11.Qb3 d5 12.ed5 Nc5 13.Qc4-/+; 10.a3 Ne5 11.Be5 Qe5 12.c3 Ba5 13.d4+=; 10.Qb3 d5 11.ed5 Bd6 12.dc6 bc6 13.Ba3+=) 10...g5 11.Qf3 Ne5 12.Be5 de5 13.Ng3+=.

8.Ne2 d6 9.Qf4 A) 9...Nd7+= 10.a3 (10.0-0 d5 11.ed5 Nb6 12.Bb3 Nd5 13.Qf2+=; 10.Bb3 Nc5 11.Bg8 Rg8 12.a3 g5 13.Qf3-/+) 10...Bc5 11.d4 Bb6 12.Nd2 Rb8 13.Rd1=; B) 9...b5 10.Bg8 Rg8 11.Bf6 g5 12.Qf3 Qf7 13.a3=; C) 9...Bc5 10.Bg8 (10.d4 Bb6 11.0-0 d5 12.ed5 cd5 13.Ba3+=; 10.Qf3 Be6 11.Be6 Qe6 12.d4 Bb6 13.Nd2=; 10.a3 Nd7 11.d4 Bb6 12.Nd2 Rb8 13.Rd1=; 10.Rf1 Nd7 11.Bb3 g5 12.Qf3 Ne5 13.Qc3+=) 10...Rg8 11.Bf6 Qe6 12.d4 Bb6 13.Qh4=; D) 9...d5 10.ed5 Bf5 11.Nbc3 b5 12.Bb3 Bd6 13.Qh4=; E) 9...g5 10.Qf3 b5 11.Bg8 Rg8 12.a4 Rg6 13.ab5=.

8.Ne2 Bd6

9.0-0 A) 9...g5 10.d3 (10.d4 b5 11.Bd3 Ba6 12.Nd2 Qe6 13.e5+=; 10.Bb3 Bc7 11.a4 d6 12.a5 Na6 13.Bd4-/+; 10.a4 b6 11.a5 b5 12.Bb3 Bb7 13.d3+=; 10.a3 b5 11.Bb3 a5 12.a4 Bb7 13.d3+=) 10...b5 11.Bb3 Qg7 12.Qh5 Kd8 13.Nd2+=; B) 9...Bb4 10.Bg8 (10.d4 b5 11.Bg8 Rg8 12.c3 Bd6 13.Nf4=; 10.Qb3 Nh6 11.Rf4 Bc5 12.d4 b5 13.Bb5=) 10...Rg8 11.Qf4 f5 12.ef5 gf5 13.Qf5=; C) 9...b6 10.d3 (10.d4 g5 11.Bd3 Qe6 12.Nd2 Ba6 13.c4+=; 10.Rf2 g5 11.a3 b5 12.Bb3 a5 13.a4+=; 10.a3 g5 11.Nbc3 b5 12.Bb3 Bc5 13.d4+=; 10.Kh1 Ba6 11.Ba6 Na6 12.Nf4 Nb4 13.Na3+=) 10...g5 11.Nd2 Ba6 12.Nd4 Bc5 13.Bg8+=; D) 9...Bc7 10.Qb3 (10.d4 g5 11.Nd2 d6 12.Rab1 b5 13.Bd3+=; 10.d3 b5 11.Bb3 Bb6 12.d4 g5 13.Nd2+=; 10.Kh1 g5 11.Nd4 d6 12.a4 Bb6 13.a5+=; 10.Ba3 d6 11.Qf4 b5 12.Bb3 a5 13.Qf2-/+) 10...Nh6 11.Nf4 b5 12.Be2 Nf7 13.Qe3=; E) 9...b5 10.Bg8 (10.Bb3 g5 11.a4 b4 12.d4 Qg7 13.c4+=) 10...Rg8 11.Nf4 Be5 12.Bc3 Rf8 13.d4+=.

9.Bb3 A) 9...g5 10.d3 (10.d4 Bc7 11.0-0 h5 12.Bg8 Rg8 13.Qh5+=; 10.Nd4 Be5 11.0-0 d6 12.Re1 g4 13.Qd1-/+; 10.a3 Bc7 11.0-0 Bb6 12.Bd4 d6 13.Bb6+=; 10.0-0 Bc7 11.d4 h5 12.Bg8 Rg8 13.Qh5-/+) 10...Bc7 11.Nd2 Na6 12.Qh5 Kd8 13.Nf3=; B) 9...b6 10.d3 (10.d4 a5 11.0-0 Ba6 12.a4 Nh6 13.Rf2+=; 10.Nf4 Be5 11.d4 Bf4 12.Qf4 d5 13.Nd2+=; 10.Nbc3 Ba6 11.d3 Be5 12.d4 Bc7 13.0-0+=; 10.a3 Bc7 11.Nbc3 g5 12.Qh5 Kd8 13.0-0+=) 10...g5 11.0-0 Ba6 12.Nd4 Bc5 13.Kh1+=; C) 9...Bc7 10.d3 (10.a3 Na6 11.Nbc3 Nc5 12.0-0 Nb3 13.cb3+=; 10.Nbc3 g5 11.0-0 Bb6 12.Kh1 d6 13.Qh5+=; 10.0-0 g5 11.a4 Na6 12.d4 d6 13.Nd2+=; 10.c4 Nh6 11.Nf4 Nf7 12.Qe3 Ng5 13.Nc3+=) 10...g5 11.Nd2 h5 12.Bg8 Rg8 13.Qh5+=; D) 9...Bc5 10.d4 (10.Qf4 d6 11.d4 Bb4 12.c3 Ba5 13.0-0=; 10.a3 d6 11.Qf4 Be6 12.d4 Bb6 13.Nd2+=; 10.Bc3 d6 11.Qf4 Na6 12.d4 Bb6 13.0-0=; 10.d3 d6 11.Qf4 g5 12.Qf3 h5 13.d4+=) 10...Bb6 11.Qf4 Na6 12.Nd2 d6 13.0-0=; E) 9...Na6 10.Nbc3 (10.Nf4 Nc5 11.Nc3 Be5 12.Nfe2 Bc3 13.Nc3+=; 10.d4 Nc7 11.Nf4 Bf4 12.Qf4 d5 13.Nd2-/+; 10.0-0 Nc5 11.Nbc3 Ne6 12.Kh1 Be5 13.Be6+=; 10.d3 Nc5 11.0-0 Ne6 12.Qf2 g5 13.Nd2+=) 10...Nc5 11.0-0 Ne6 12.Kh1 Ng5 13.Qd3+=.

9.c3 A) 9...Bc7 10.d4 (10.Bb3 g5 11.0-0 d6 12.d4 f5 13.Qh5-/+; 10.Ba3 d6 11.0-0 g5 12.d4 h5 13.Nd2-/+) 10...f5 11.e5 d5 12.Bd3 Qh4 13.Kd1+=; B) 9...Na6 10.d3 (10.Ba6 ba6 11.0-0 Rb8 12.Bc1 g5 13.d4-/+; 10.d4 b5 11.Bb3 Bb7 12.Nf4 Bf4 13.Qf4+=) 10...Nc5 11.0-0 b5 12.Bb3 Ba6 13.Rd1+=; C) 9...b5 10.Bb5 (10.Bb3 Bb7 11.d3 c5 12.Nd2 Nc6 13.d4-/+; 10.Bd3 Nh6 11.0-0 Nf7 12.Nf4 Ne5 13.Qh3-/+) 10...cb5 11.e5 Nc6 12.ed6 Qd6 13.Nf4+=; D) 9...g5 10.d3 (10.d4 b5 11.Bd3 Bb7 12.Nd2 a6 13.Qh5+=; 10.Nd4 Bc5 11.Nf5 Qf8 12.Qe2 Kd8 13.d4-/+; 10.Bb3 Bc7 11.0-0 d6 12.d4 f5 13.Qh5-/+; 10.0-0 Bc7 11.d4 h5 12.Bd3 d6 13.Nd2-/+) 10...b5 11.Bb3 a5 12.a4 Bc5 13.d4+=; E) 9...Nh6 10.d4 (10.0-0 f5 11.ef5 Nf5 12.Nf4 Rf8 13.Qd1-/+) 10...b5 11.Bd3 Nf7 12.Nd2 Ng5 13.Qf2-/+.

9.Nbc3 A) 9...Bc5 10.d4 (10.Qf4 d6 11.Na4 Nd7 12.Nc5 Nc5 13.d3+=; 10.Rb1 b5 11.Bb3 a5 12.Nf4 Na6 13.Bg8+=; 10.Nf4 d5 11.Be2 de4 12.Ne4 Bf5 13.Nc5+=; 10.a4 d6 11.Qf4 Be6 12.Be6 Qe6 13.d4+=) 10...Bb6 11.Qf4 Qb4 12.Bg8 Rg8 13.Qf6=; B) 9...Bc7 10.Bg8 (10.a4 g5 11.d3 d6 12.0-0 Nd7 13.d4-/+; 10.Nf4 d5 11.Bb3 Be5 12.0-0-0 g5 13.Nh5+=; 10.Bb3 g5 11.0-0 Bb6 12.d4 d6 13.Qh5+=; 10.Rb1 b5 11.Bb3 b4 12.Na4 Nh6 13.Nf4=) 10...Rg8 11.Nf4 Rf8 12.Ncd5 cd5 13.Nd5=; C) 9...Be5 10.d4 (10.Bb3 f5 11.d4 Bc7 12.d5 Qh4 13.g3+=; 10.Rb1 b5 11.Bb3 b4 12.Nd1 Ba6 13.d3+=; 10.Rd1 b5 11.Bb3 b4 12.Na4 Bb2 13.Nb2+=; 10.a3 f5 11.d4 fe4 12.Ne4 Bg7 13.Bf7-/+) 10...Bc7 11.0-0 b5 12.Bg8 Rg8 13.Nf4+=; D) 9...g5 10.0-0 (10.Bb3 Bc7 11.0-0 Bb6 12.Kh1 d6 13.Qh5+=; 10.a4 Bc7 11.Qd3 d6 12.0-0 Bb6 13.Kh1–+; 10.Nd4 Be5 11.Nf5 Qb4 12.Bb3 d5 13.a3-/+; 10.Qh5 Kd8 11.Bb3 Na6 12.0-0 b5 13.Qf3+=) 10...Bc7 11.Bb3 Bb6 12.Kh1 d6 13.Qh5+=.

9.Nf4 Be5 (9...Bf4 10.Qf4 d5 11.Bd3 Nd7 12.0-0 Qb4 13.Bc3+=) 10.Ba3 (10.Be5 fe5 11.Ne2 Nf6 12.a4 Rf8 13.Rf1-/+) 10...d6 11.c3 f5 12.d4 fe4 13.Qg3-/+.

5.Bc4 Qe7-/+

6.Qe2 Qb4 7.Ba3 Qa5 8.Bf8 Kf8 9.Nf3 d5 10.Bb3 Bg4 11.ed5-/+.

6.Qe2 Qb4 7.Ba3 Qb6 8.Bf8 (8.e5 Ne7 9.Nf3 Kd8 10.Qd3 Ng6 11.ef6-/+) 8...Kf8 9.Nc3 Qc5 10.Bb3 d6 11.Qf3-/+.

6.Qe2 Qb4 7.Bb3 Na6 8.e5 Be7 9.ef6 Nf6 10.Bf6 gf6 11.Qh5 Kd8 12.Nc3 d5 13.Nf3 Bd7 14.0-0 f5 15.Kh1 Bf6 16.Rfe1 Bc3 17.dc3 Qc3 18.Qf7 Nc5 19.Qe7 Kc8 20.Ne5 h6 21.Nf7 Rg8 22.Nh6 Re8 23.Qh4 Re1 24.Re1 b6 25.Qf2 Ne4 26.Qf1 Qc5 27.Re2 Qd6 28.Nf7 Qf6 29.Re1 Qf7 30.Qf4 Be6 31.h4 Kb7 32.a4 Qf6 33.Kh2 Rg8 0–1. Player – MacChess 5.0, 2000.

6.Qe2 b5 A) 7.Bg8 Rg8 8.a3 (8.c3 a5 9.ba5 Ra5 10.d3 d5 11.Nd2-/+; 8.Qh5 g6 9.Qe2 Bg7 10.a3 a5 11.ba5-/+; 8.e5 fe5 9.Be5 g5 10.a4 d6 11.Bc3-/+; 8.Nh3 Qb4 9.Bc3 Qe7 10.Nf4 d5 11.ed5-/+; 8.Bc3 Na6 9.a3 d5 10.ed5 cd5 11.Kf2-/+) 8...a5 9.ba5 Ra5 10.Nc3 d6 11.Nh3+=; B) 7.Bb3 B1) 7...Nh6 8.a3 (8.e5 fe5 9.Be5 d5 10.a4 ba4 11.Ba4+=; 8.a4 Ba6 9.Qh5 Kd8 10.Nc3 Qb4 11.ab5+=; 8.Bc3 a5 9.ba5 b4 10.Bb2 Ra5 11.a3+=; 8.Nf3 Qb4 9.e5 f5 10.Nd4 Qc5 11.0-0+=; 8.Nc3 Qb4 9.a4 ba4 10.Ra4 Qe7 11.Nh3+=; 8.Qh5 Kd8 9.Qf3 d5 10.Nc3 a5 11.a3-/+) 8...a5 9.ba5 Ra5 10.e5 Ng8 11.Qh5=; B2) 7...Bb7 8.Nc3 (8.Nf3 d5 9.Nc3 a5 10.ed5 Qe2 11.Ne2+=; 8.a3 a5 9.ba5 c5 10.d3 c4 11.Qh5+=; 8.Nh3 c5 9.d3 c4 10.dc4 bc4 11.Bc4-/+; 8.Qh5 g6 9.Qe2 c5 10.Bd5 Bd5 11.ed5-/+) 8...Qb4 9.Nh3 Qd6 10.0-0 Ba6 11.d3=; B3) 7...a5 8.ba5 (8.a4 ba4 9.Ra4 Ba6 10.Qh5 g6 11.Qf3+=; 8.Nh3 d5 9.Nf4 Qe4 10.Qe4 de4 11.Nc3-/+) 8...Ra5 9.d3 b4 10.a3 ba3 11.Ra3=; B4) 7...Kd8 8.a4 (8.Bc3 Na6 9.a3 Nc7 10.Nf3 d5 11.d3+=; 8.a3 a5 9.ba5 Nh6 10.Nf3 d5 11.Nc3=; 8.c3 a5 9.ba5 Ra5 10.d3 d6 11.Nf3+=; 8.Bd4 Qb4 9.Nf3 Qd6 10.0-0 c5 11.e5+=; 8.Nf3 d5 9.ed5 Qe2 10.Ke2 Bb4 11.Nd4+=; 8.Nh3 d5 9.Nf4 Qe4 10.Qe4 de4 11.Nc3+=) 8...Ba6 9.ab5 Bb5 10.c4 Ba6 11.Ra4=; B5) 7...Qb4 8.Nh3 (8.Ba3 Qa5 9.Bf8 Kf8 10.Nh3 Qc7 11.Rf1-/+; 8.Qf3 Ne7 9.Ne2 Ng6 10.0-0 Qd6 11.d4+=; 8.Nf3 Ne7 9.e5 d5 10.ef6 gf6 11.Bf6+=) 8...Ne7 9.Bc3 Qd6 10.e5 fe5 11.Ng5+=.

6.Qh5 Kd8 7.Qe2 Qb4? 8.Ba3 Qb6 9.Bf8+-.

6.Qh5 Kd8 7.Qe2 f5 8.ef5 d5 9.Bd3 Qb4 10.Ba3 Qd4 11.Bf8 Qa1 12.c3 h5 13.Bg7+-.

6.Qe2 d5

7.ed5= cd5 8.Bd5 Nc6 9.a3 Bg4 10.Bf3 Bf5 11.d3 Ne5=.

7.ed5= Qe2 8.Ne2 cd5 9.Bd5 Bb4 10.Nf4 Ne7 11.Bc4 Nbc6=.

7.ed5= Bf5 8.Bb3 (8.c3 b5 9.Bb3 a5 10.ba5 Ra5 11.dc6 Nc6=) 8...Bg4 9.Qe7 Be7 10.a3 c5 11.bc5 Bc5=.

7.ed5= Bg4

8.Qe7 Be7 9.a3 Bf5 10.dc6 Nc6 11.Ne2 Rc8=.

8.Qe7 Ne7 9.Nc3 Nd7 10.dc6 Nc6 11.a3 0-0-0=.

8.Qe7 Ne7 9.Nc3 Nd7 10.dc6 Nc6 11.a3 Nde5 12.Be2 Be2 13.Nce2 Nc4 14.Bc3 Bd6 15.Nh3 0-0-0 16.Nhf4 Rhe8 17.Kd1 (17.Nd3 Rd7 18.Kf2 Bc7=) 17...Be5 (17...Ne3 18.de3 Bf4 19.Ke1 Re3 20.Kf2+=) 18.Nd3 (18.d3 g5 19.Nh5 Re6=) 18...Bc3+= 19.Nc3 N6e5 20.Re1 Nd3 21.cd3 Re1 22.Ke1 Rd3 23.Nb1 Kd7 24.Ke2 Rb3 25.Kd1 Rd3 26.Ke2 Rd5 27.Ra2 Rh5 28.h3 Rg5 29.Kf2 Rd5 30.Rc2 Rd4 31.Ke2 f5 32.Rc3 Re4 33.Kf2 Nd6 34.d3 Rf4 35.Ke2 Rd4 36.Rc5 g6 37.Nd2 b6 38.Re5 Nf7 39.Re3 g5 40.Nc4 Rd5 41.a4 b5 42.Nb2? (better is 42.ab5!? Rb5 43.g3+=) 42...f4-/+ 43.Rf3 Rd4 44.Kd2 (44.ab5 Rb4 45.Nc4 Nd6-/+) 44...Ne5 (44...Rb4 45.Kc3 a5 46.Rf1–+) 45.Rf1 Rb4 46.Kc3 a5 47.ab5 Rb5 48.d4 Nc6 49.Nc4 a4 50.Kd3 a3! 51.Ra1 (51.Na3 Rb3 Double attack (51...Rb3 Decoy)) 51...a2! 52.Kc3 (52.Ra2 Nb4 Double attack (52...Nb4 Decoy)) 52...Nb4 53.Nd2 Nd5 54.Kc2 Ne3 55.Kc3 Ra5 ½–½. Vasut,Karel (2165) – Shilov,Sergej (2275), CZE–chT2d, 2007.

8.Qe7 Ne7 9.dc6 Nbc6 10.a3 Rc8 11.Bb3 Nf5=.

8.Qe7 Ne7 9.dc6 Nbc6 10.a3 Ng6 11.Ne2 (11.Nf3 0-0-0=) 11...0-0-0 12.h3 Bf5 13.0-0 Bc2 14.Rc1 (14.d4!?=) 14...Bb1-/+ 15.Rab1 Kb8 (15...Rd2 16.Bc3 Rd8 17.Bf7-/+) 16.Rc2 (16.d4!?=) 16...Nce5+= 17.Be5 Ne5 18.Nf4 Nc4 19.Rc4 Rd2 20.Rbc1 Bd6 21.Ne6 g6 22.Nd4 a6 23.a4 White prepares b5 23...Re8 24.b5? (better is 24.Kf1-/+) 24...Ba3–+ 25.Nc6 (25.Nb3 Bc1 26.Rc1–+) 25...bc6 26.Rb1 cb5 27.ab5 a5 28.b6 (28.g4 Re3 29.h4 Bb2–+) 28...Rc8 (28...Rc8 29.Rc8 Kc8–+) 0–1. Vasut,Karel (2150) – Shilov,Sergej (2225), CZE–chT2D, 2009.

6.Qe2 d6

7.a4 a5 8.b5 (8.ba5 f5 9.Nh3 f3 10.Qf3 Qe4 11.Qe2+=) 8...f5 9.Nh3 fe4 10.Nf4 Nf6 11.bc6+=.

7.a4 Na6 8.Ba3 (8.Ba6 ba6 9.Qc4 Bb7 10.Ne2 Rc8 11.Nbc3+=) 8...f5 9.b5 Nb8 10.Nc3 h5 11.Nf3+=.

7.a4 Bd7 8.Bd4 (8.a5 f5 9.Nh3 f3 10.Qf3 d5 11.Qh5-/+; 8.Nc3 f5 9.Nh3 fe4 10.Nf4 Nf6 11.b5-/+; 8.Kf2 f5 9.ef5 Bf5 10.Nh3 Bh3 11.Qh5-/+; 8.Na3 f5 9.Nh3 f3 10.Qf3 d5 11.Qh5-/+; 8.Ra2 f5 9.Nh3 f3 10.Qf3 d5 11.Qh5-/+; 8.b5 f5 9.bc6 Nc6 10.Nc3 Nf6 11.Nd5-/+) 8...c5 9.bc5 dc5 10.Bf2 f5 11.e5+=.

7.Bb3 f5 8.ef5 (8.Nh3 f3 9.Qf3 Qe4 10.Qe2 Qe2 11.Ke2 d5+=; 8.e5 d5 9.a3 a5 10.ba5 Qh4 11.Qf2+=) 8...Bf5 9.Qe7 Ne7 10.Ne2 f3 11.gf3=.

7.b5 a6 8.bc6 (8.a4 f5 9.bc6 bc6 10.Nh3 fe4 11.Nf4-/+) 8...bc6 9.Nc3 Nh6 10.Rb1 Bg4 11.Nf3=.

7.b5 Bd7 8.bc6 (8.Nf3 cb5 9.Bb5 d5 10.Bd7 Nd7 11.Nc3+=; 8.Nc3 f5 9.Nf3 fe4 10.Ne4 d5 11.Nd6-/+; 8.d3 Nh6 9.bc6 bc6 10.Nf3 Ng4 11.Bb3+=; 8.Bd4 cb5 9.Bb5 Bb5 10.Qb5 Nc6 11.Nc3-/+) 8...Nc6 9.Nc3 Qd8 10.Bg8 Rg8 11.Qh5+=.

7.b5 Nh6 8.Nf3 (8.Nc3 Bg4 9.Nf3 Nd7 10.d4 f5 11.0-0+=; 8.a3 Bg4 9.Nf3 Nd7 10.0-0 Ne5 11.d4+=) 8...f5 9.Nc3 Kd8 10.d3 Ng4 11.Bc1+=.

7.Nc3 Be6 (7...Nh6!?+= 8.b5 (8.a4 Bg4 9.Nf3 Nd7 10.0-0 Ne5 11.b5+=) 8...Bg4 Nf3 Nd7 10.0-0 Ne5 11.d4+=; 7...b5 8.Bg8 Rg8 9.Nd5 Qf7 10.Nf4 a5 11.a4=; 7...f5 8.Nh3 (8.Nf3 b5 9.Bg8 Rg8 10.a4 fe4 11.Ne4+=; 8.b5 Nf6 9.d3 fe4 10.Ne4 Ne4 11.de4-/+; 8.Qh5 Kd8 9.Bg8 g6 10.Qf3 Rg8 11.Nge2-/+; 8.0-0-0 fe4 9.Qh5 g6 10.Qe2 Bg7 11.Qe4-/+; 8.Bd3 fe4 9.Ne4 Kd8 10.Nf3 Bg4 11.Neg5+=) 8...fe4 9.Ne4 Bh3 10.Nd6 Kd7 11.Nf7=) 8.Be6= Qe6 9.Nf3 (9.Nh3 g5 10.0-0 h5 11.b5=) 9...Nd7 (9...Ne7 10.Nd4 Qd7 11.0-0+=) 10.Nd4 (10.0-0 Ne5 11.d3=) 10...Qf7 (10...Qe5 11.Nd1 Qg5 12.0-0+=) 11.0-0+= g5 12.b5 c5 (12...Ne5 13.a4+=) 13.Nd5 0-0-0 14.Nc6 Re8 15.Qc4 Nh6 16.Na7 Kb8 (16...Kd8 17.Nc6! bc6 18.bc6 Ne5 19.Be5 Re5+-) 17.Nc6! Kc8 (17...bc6 18.bc6) 18.Qa4 bc6 (18...Nb8 19.Na7 Kd7 20.Nf6 Ke7 21.Ne8 Rg8+-) 19.Qa6 Kb8 20.bc6 (20.bc6 Nb6 21.Qb6 Kc8 22.Qa6 Kb8 23.Be5 Qa7 24.Rab1 Ka8 25.Nc7) 1–0. Brinkmann,Wilhelm – Majerski,X, Bayerische Oberliga, 1978.

7.Bd4 A) 7...Nd7 8.Nf3 (8.Nc3 Ne5 9.Bb3 f5 10.Nf3 Nf6 11.Be5+=; 8.Bb3 a5 9.Nh3 ab4 10.Nf4 Nc5 11.d3+=; 8.Bg8 Rg8 9.Nh3 c5 10.Bb2 f5 11.0-0+=; 8.a3 Ne5 9.Bb3 f5 10.Nf3 Nf3 11.gf3-/+; 8.Qh5 Kd8 9.Qe2 Ne5 10.Bb3 f5 11.Nc3-/+; 8.a4 Ne5 9.Bb3 f5 10.Nc3 Nf6 11.a5-/+) 8...b5 9.Bb3 a5 10.a4 ab4 11.ab5=; B) 7...c5 8.bc5 (8.Bc3 cb4 9.Bb4 Nc6 10.Bc3 f5 11.Nh3+=; 8.Bb5 Bd7 9.Bd7 Nd7 10.bc5 dc5 11.Bb2+=) 8...dc5 9.Bf2 f5 10.Nc3 Nf6 11.Bb5=; C) 7...b5 8.Bb3 (8.Bg8 Rg8 9.a4 f5 10.Nc3 Na6 11.Rb1-/+; 8.Bd3 a5 9.a4 ab4 10.a5 Nd7 11.Nh3-/+) 8...a5 9.a4 Bb7 10.ab5 ab4 11.Ra8+=; D) 7...Nh6 8.a3 (8.b5 Nd7 9.Nf3 f5 10.bc6 bc6 11.e5+=; 8.Qh5 g6 9.Qe2 b5 10.Bb3 a5 11.ba5+=; 8.a4 f5 9.Nh3 fe4 10.Qh5 Nf7 11.Bf7-/+; 8.Nf3 f5 9.d3 fe4 10.de4 Ng4 11.Nc3+=; 8.Nc3 b5 9.Bd3 a5 10.ba5 b4 11.Qh5+=; 8.d3 f5 9.Qh5 Kd8 10.Qe2 b5 11.Bb3+=) 8...b5 9.Ba2 a5 10.Nf3 Na6 11.ba5+=.

7.Kf2 A) 7...b5 8.Bg8 (8.Bb3 a5 9.ba5 Nh6 10.Qh5 g6 11.Qf3-/+) 8...Rg8 9.a4 ba4 10.Ra4 Be6 11.Nf3+=; B) 7...Nh6 8.a4 (8.Bb3 f5 9.ef5 Nf5 10.Qh5 g6 11.Qe2-/+; 8.a3 Ng4 9.Kf3 h5 10.h3 g5 11.Bb3-/+; 8.Bd4 Ng4 9.Kf3 Ne5 10.Kf4 d5 11.Bb3-/+; 8.Bc3 Ng4 9.Kf3 Qd7 10.a4 Nh2 11.Kf4-/+) 8...Qc7 9.Kf1 Nd7 10.d4 a5 11.ba5+=.

7.Nf3 b5 8.Bb3 d5 9.Nc3 a5 10.a3 de4 11.Ne4=.

7.Nf3 b5 8.Bd3 a5 9.a4 ba4 10.b5 Nh6 11.0-0=.

7.Nf3 b5 8.Bg8 Rg8 9.a4 d5 10.ed5 ba4 11.dc6+=.

7.Nf3 b5 8.Bg8 Rg8 9.a4 f5 10.e5 d5 11.c3 ba4 12.Ra4 g5 13.d3 g4-/+.

7.Nf3 Bg4 8.h3 (8.Nc3 Nd7 9.h3 Bh5 10.0-0 Ne5 11.Bb3+=; 8.b5 Nd7 9.h3 Bh5 10.Nc3 Ne5 11.Bb3+=; 8.0-0 d5 9.ed5 Qe2 10.Be2 Bb4 11.a3+=; 8.a3 Nd7 9.0-0 Ne5 10.Bd4 b5 11.Ba2+=; 8.Bd4 f5 9.ef5 Bf5 10.0-0 b5 11.Nh4+=; 8.a4 d5 9.ed5 Qe2 10.Ke2 Bb4 11.Re1+=) 8...Bf3 9.gf3 Nd7 10.Rg1 Nb6 11.Bb3+=.

7.a4 Nd7

8.Ba2 a5 9.b5 Nc5 10.Nc3 f5 11.Nh3 f3 12.gf3 fe4 13.fe4 Bh3-/+.

8.Ba2 Ne5 9.d4 Ng6 10.Nd2 Nh6 11.Ngf3 Ng4 12.c4 Ne3 13.Bb1 f5-/+.

8.Ba2 Nh6 9.Nc3 Ne5 10.d4 Ng6 11.Nf3+=.

8.Ba2 Nh6 9.Nh3 Nb6 10.Nf4 Bg4 11.Qe3 Na4 12.Bd4 c5 13.Bc3 Nc3+=.

8.Na3 a5 9.ba5 Nc5 10.d3 Ra5 11.Qd2-/+.

8.Bb3 a5 9.Bc3 ab4 10.Bb4 Nc5 11.Bc5+=.

8.Nc3 Ne5 9.Bb3 d5 10.Nf3 Bg4 11.b5-/+.

8.Nc3 Ne5 9.Bb3 d5 10.Nf3 Bg4 11.d4 f5 12.de5 fe4 13.Ne4 de4-/+.

8.Bd4 Ne5 9.Bb3 f5 10.Nc3 a5 11.b5-/+.

8.Nf3 Nb6 9.Bg8 Rg8 10.a5 Nd7 11.0-0 d5 12.Nc3 Qb4 13.ed5 Kd8+=.

8.Nf3 d5 9.Bd3 de4 10.Be4 Qb4 11.Ba3 Qa5 12.Bg6 Kd8 13.Qe8 Kc7 14.Bf8 +/-.

8.Nf3 Ne5 9.Ne5 fe5 10.0-0 Nf6 11.d4 Bg4 12.Qe1 0-0-0 13.b5 c5+=.

8.Nf3 Nh6 9.0-0 Ne5 10.Bd4 Nc4 11.Qc4 d5 12.ed5 Qb4 13.Re1 Kd8+=.

8.Bg8 Rg8 9.Nf3 Ne5 10.Nc3 Be6 11.b5-/+.

8.Bg8 Rg8 9.Nh3 Ne5 10.Nf2 d5 11.ed5 cd5 12.Be5 Qe5 13.Nc3 Bb4-/+.

7.a4 f5

8.Nc3 fe4 9.Ne4 Kd8 10.Bb3 Bf5 11.Nf2 Na6 12.Bc3 Nf6 13.Ngh3 d5-/+.

8.Nc3 Nf6 9.d3 fe4 10.de4 Bg4 11.Nf3 d5 12.ed5 Qe2 13.Ke2 Bb4+=.

8.Nh3 fe4 (8...f3 9.Qf3 d5 10.Qh5 Kd8 11.Ng5 Nh6 12.Be2 de4 13.Bc3 Nd7+=) 9.Nf4 Nf6 10.0-0 d5 11.Bf6 gf6 12.Bd5 cd5 13.Nd5 Qe5-/+.

8.Qh5 Kd8 9.Ne2 fe4 10.Nf4 Nh6 11.Bd4-/+.

8.Qh5 Kd8 9.Ne2 Nf6 10.Qg5 fe4 11.Nf4 d5 12.Be2 Ne8 13.Qe7 Be7-/+.

7.a4 Nh6

8.b5 f5 9.ef5 Nf5 10.Qe7 Be7 11.Ne2+=.

8.Nc3 Nd7 9.Nf3 Ne5 10.0-0 Nc4 11.Qc4 d5 12.ed5 Qb4 13.Qb4 Bb4+=.

8.Nc3 f5 9.Nf3 Nd7 10.0-0 fe4 11.Ne4 d5 12.Nd6 Kd8 13.Qe7 Ke7+=.

8.Nc3 Bg4 9.Nf3 Nd7 10.0-0 Ne5 11.b5 d5 12.Ba3 Qf7 13.Bf8 Qf8-/+.

8.Nc3 Bg4 9.Nf3 Nd7 10.d4 d5 11.ed5+=.

8.Nf3 d5 9.ed5 Qe2 10.Ke2 Bb4 11.Re1 Kd8 12.Kf1 Nf5 13.Nc3 Nd6+=.

8.Nf3 Nd7 9.0-0 Ne5 10.Ne5 de5 11.c3-/+.

7.b5 Nd7

8.Bb3 Nc5 9.Nc3 f5 10.Nh3 f3 11.gf3-/+.

8.Nc3 Ne5 9.Bb3 a6 10.bc6 bc6 11.d4=.

8.bc6 bc6 9.Nc3 Ne5 10.Bb3 Rb8 11.Qf1+=.

8.d4 a6 9.bc6 bc6 10.Nf3 Nb6 11.Bd3 Rb8 12.Bc1 g5 13.0-0 a5=.

8.d4 a6 9.bc6 bc6 10.Nf3 d5 11.Bd3=.

8.d4 Nb6 9.Bd3 c5 10.c4 Na4 11.Nf3 Nb2 12.Qb2 f5 13.Nc3 Nf6+=.

8.d4 d5 9.ed5 Nb6 10.Bd3 Nd5 11.Ba3 Qe3 12.bc6 bc6 13.Nf3 Rb8-/+.

8.d4 Nh6 9.Nf3 f5 10.e5 de5 11.Ba3 c5 12.de5 Ng4 13.Bb2 Ne3-/+.

8.Nf3 Nb6 9.0-0 Bg4 10.Bb3 d5 11.Nc3=.

8.Nf3 Nc5 9.bc6 bc6 10.Nc3 f5 11.Nd4 fe4 12.Nc6 Qh4 13.Kf1 Nf6-/+.

8.Nf3 d5 9.ed5 Nb6 10.d6 Qe2 11.Be2 Bd6 12.Nc3 Bg4 13.bc6 bc6+=.

7.b5 f5

8.Nc3 Nf6 9.d3 fe4 10.Ne4 Ne4 11.de4-/+.

8.bc6 bc6 9.Nh3 f3 10.Qf3 Qe4 11.Qe2 d5 12.Bd3 Qe2 13.Be2 Na6+=.

8.bc6 bc6 9.Qh5 Kd8 10.Ne2 Nf6 11.Qg5-/+.

8.bc6 Nc6 9.Nc3 Kd8 10.Nh3 fe4 11.Nf4 Nd4 12.Qd1 Nf3 13.gf3 Qh4+=.

8.bc6 fe4 9.Qh5 Kd8 10.Bg8 Rg8 11.Qh7 f3 12.cb7 Bb7 13.Nh3 Bd5+=.

8.Nh3 fe4 9.Nf4 Nf6 10.bc6 bc6 11.0-0 d5 12.Bf6 gf6 13.Nd5 cd5-/+.

8.Nh3 f3 9.Qf3 Qe4 10.Qe2 d5 11.Bd3 Qe2 12.Be2 a6 13.b6 Nd7+=.

8.Nh3 f3 9.Qf3 Qe4 10.Qe4 fe4 11.bc6+=.

8.Qh5 Kd8 9.Ne2 Nf6 10.Qg5 cb5 11.Bb5-/+.

7.Nf3 d5

8.Bd3 Nd7 9.ed5 cd5 10.a3 a5 11.Nc3 Qe2 12.Be2 ab4 13.Nd5 ba3=.

8.Bd3 de4 9.Be4 Bg4 10.Bd4 f5 11.Bd3 Nd7 12.Qe7 Ne7 13.Ng5 c5+=.

8.Bd3 Bg4 9.a3 de4 10.Be4 a5 11.b5 f5 12.Bd3 Nd7 13.0-0 Qe2+=.

8.Bd3 Nh6 9.Nc3 d4 10.Nd4 Qb4 11.Rb1 Bg4 12.Nf3 Qc5 13.e5 Bf3+=.

8.ed5 cd5 9.Bd5 Qe2 10.Ke2 Bb4 11.c3 Ne7 12.Bb7 Bc3 13.Nc3 Bb7+=.

8.ed5 Qe2 9.Ke2 Bb4 10.Re1 Ne7 11.dc6+=.

8.ed5 Qe2 9.Ke2 Bb4 10.Re1 Ne7 11.Kf2 Kd8 12.dc6 Nbc6 13.a3 Ba5+=.

7.Nf3 Nd7

8.0-0 Ne5 (8...d5 9.ed5 cd5 10.Re1 Qe2 11.Re2 Kd8 12.Bd5 Bb4 13.a3 Ne7=) 9.Ne5 fe5 10.d4 Nf6 11.Nd2 Ng4 12.Rfb1 b5 13.Bd3 ed4+=.

8.a3 Ne5 9.0-0 Bg4 10.Bd4 b5 11.Ba2+=.

8.Bb3 Ne5 9.0-0 Bg4 10.Re1 Nf3 11.gf3+=.

8.b5 Nc5 9.bc6 bc6 10.Nd4 Qe4 11.Qe4+=.

8.Nc3 Ne5 9.Bb3 (9.0-0 Bg4 10.Bb3 f5 11.Rfe1 0-0-0 12.d4 Nf3 13.gf3 Bh3+=) 9...Nh6 (9...Bg4 10.0-0 f5 11.Rfe1 0-0-0 12.d4 Nf3 13.gf3 Bh3+=) 10.0-0-0 (10.b5 Bg4+= 11.d4 Nf3 12.gf3 Bd7 13.bc6 bc6+=; 10.Nd4 d5 11.a3 Bg4 12.Qf2 f5 13.0-0 fe4+=) 10...Be6 (10...b5!?-/+ 11.d4 Nf3 12.gf3 a5 13.a3 ab4+=) 11.d4 (11.Be6 Qe6 12.Rdf1 Ng6 13.Nd4 Qd7=) 11...Nf3 12.gf3 Bb3 13.ab3 (13.cb3 Nf7+=) 13...a6 (13...Rb8+=) 14.h4 Nf7 15.Qf2 (15.h5 Ng5+=) 15...g5-/+ 16.d5 Ne5 17.Ne2 h5 (17...Rc8 18.hg5 fg5 19.Be5 Qe5 20.Qa7+=) 18.Nd4+= cd5 19.Nf5 Qc7 20.Rd5 Rc8 21.hg5 fg5 22.Rhd1 Rh7 23.c4 (23.Rd6 Nf3 24.Re6 Kf7 25.Rf6 Kg8 26.Rg6 Kf7 27.Rf6 Ke8 28.Re6 Kf7 29.Rf6=) 23...g4 (23...Nf7 24.Kd2+=) 24.Qd2 (24.Rd6 Nf3 25.Re6 Kf7 26.Rf6 Kg8 27.Rg6 Kf7 28.Rf6 Ke8 29.Re6 Kf7 30.Rf6=) 24...gf3 (24...Nf3 25.Qf4 Rf7 26.Kb1+=) 25.Rd6 (better is 25.Qf4 Nf7 26.Qg3+=) 25...Nc4-/+ 26.bc4 Qc4 27.Kb1 Qe4 28.Ka1 (28.Qd3!? Qd3 29.R6d3 Bb4 30.Rd4+=) 28...Qf5–+ 29.Rd5 Qc2?? (better is 29...Qg4 30.Rd8 Rd8 31.Qd8 Kf7 32.Qd5 Qe6 33.Qb7 Kg6 34.Rg1 Kh6 35.Qf3 Bd6-/+) 30.Rd8+- Rd8 31.Qc2 (31.Qd8 Kf7 32.Qf6 Kg8 33.Rd8 Qb2 34.Kb2+-) 31...Rd1+= 32.Qd1 Bg7 (better is 32...f2!? 33.Qe2 Be7 34.Qf2 Rf7+/-) 33.Qf3 Bb2 34.Kb2 Rf7 35.Kc3 h4 36.Kd4 Kf8 37.Ke5 Re7 38.Kd6 Rf7 39.Qh5 Kg7 40.Qg5 Kf8 (40...Kh7+-) 41.Ke6 h3 (41...Rh7 42.Qd8 Kg7 43.Qe7 Kg8 44.Qe8 Kg7 45.Qf7 Kh6 46.Qf6 Kh5 47.Kf5 Rg7 48.Qg7 a5 49.Qg6) 42.Qh6 (42.Qh5 Re7 43.Kf6 Kg8 44.Qd5 Kh7 45.Qd3 Kg8 46.Qd8 Kh7 47.Qe7 Kh6 48.Qg7 Kh5 49.Qg5) 42...Kg8+- 43.Qh3 f3 44.Qh5 Rg7 45.Qf3 Kh7 46.Qh5 Kg8 47.Qe8 Kh7 48.Kf6 b6 49.Qe4 Kg8 50.Qa8 (better is 50.Qc4!? Kh7 51.Qd3 Kg8 52.Qa6 Kh7+-) 50...Kh7 51.Qa6 1–0. Lapshun,Yury (2440) – Laframboise,Marc Andre (2090), Quebec Open, Montreal CAN, 2004.

8.Nc3 Nh6 9.0-0 Ne5 10.Ne5 fe5 11.a4 Ng4 12.a5 Qh4 13.h3 Nf6+=.

8.Bd4 b5 9.Bb3 a5 10.a4 ab4 11.ab5=.

7.Nf3 f5

8.Nc3 a5 9.b5 Nf6 10.e5 de5 11.Ne5 Be6 12.Be6 Qe6 13.0-0 Bc5=.

8.Nc3 b5 9.Bg8 Rg8 10.0-0 fe4 11.Ne4 Kd8 12.Qd3 Bf5 13.Nfg5 Qg5+=.

8.Nc3 b5 9.Bg8 Rg8 10.a4 fe4 11.Ne4+=.

8.Nc3 Nf6 9.e5 de5 10.Ne5 Be6 11.Be6 Qe6 12.Nd3 Kf7 13.Qe6 Ke6=.

8.ef5 Qe2 9.Be2 Bf5 10.Nd4 Bc8 11.0-0 d5 12.Bh5 Kd8 13.Rf4 Bb4=.

8.ef5 Bf5 9.Nd4 Be4 10.Be6 Nf6 11.0-0 c5 12.bc5 dc5 13.Qc4 a6+=.

5.Nh3 Qe7

6.Nc3 A) 6...Qb4 7.Rb1 Nh6 (7...Qd6 8.Qf3 b5 9.Nf4 Nh6 10.Bd3 Qc7+=; 7...d5 8.Nf4 Nh6 9.Bd3 Bd6 10.Qh5 Nf7+=; 7...Qe7 8.Nf4 d5 9.Bd3 Nh6 10.0-0 Bg4=; 7...Qa5 8.Nf4 Qg5 9.Qf3 Bc5 10.Be2 d6=) 8.Nf4 d5 9.Bd3 Bd6 10.Qh5 Nf7+=; B) 6...d5 7.Nf4 Nh6 (7...de4 8.Qh5 Kd8 9.b5 Bd7 10.Bc4 Qd6+=; 7...d4 8.Qh5 g6 9.Ng6 hg6 10.Qh8 dc3+=; 7...Bf5 8.a3 Be4 9.Ne4 Qe4 10.Qe2 Nh6+=; 7...Qb4 8.Qh5 Kd8 9.Ng6 Qb2 10.Rb1 Qc2+=) 8.Qh5 Kd8 9.Qe2 Bg4 10.Qe3 Qb4-/+.

6.Bd3 Qb4?! A) 7.Ba3 Qd4 (7...Qb6 8.Bf8 Kf8 9.Nf4 d6 10.Nc3 Qc5=) 8.Bf8 Kf8 9.Nc3-/+ g5 10.Nf2 d6-/+; B) 7.Bc3 Qb6 (7...Qe7 8.0-0 Qf7 9.Nf4 Bc5 10.Kh1 d5+=; 7...Qd6 8.0-0 Qc5 9.Kh1 d6 10.Nf4 Qg5=; 7...Qc5 8.Nf4 Nh6 9.Be2 d5 10.ed5 cd5+=; 7...Qa4 8.Nf4 Nh6 9.Qh5 Nf7 10.0-0 b6+=) 8.Nf4 Qc5 9.e5 fe5 10.Qh5 Kd8+=.

6.Qe2 A) 6...d5 A1) 7.Nf2 Qb4 (7...Be6 8.a3 Nd7 9.Nc3 de4 10.Qe4 Bf5+=; 7...de4 8.Ne4 Be6 9.b5 Qd7 10.Qh5 Bf7+=; 7...Na6 8.a3 Nc7 9.Qf3 de4 10.Qf4 f5-/+; 7...Nh6 8.ed5 Qe2 9.Be2 Bb4 10.Nd3 Bd6+=) 8.ed5 Ne7 9.Bc3 Qd6 10.dc6 Nbc6-/+; A2) 7.Nf4 Qe4 (7...de4 8.Nc3 e3 9.0-0-0 Nh6 10.Re1 Ng4+=) 8.Qe4 de4 9.Nc3 f5 10.Bc4 Nf6-/+; B) 6...Qb4 7.Ba3 Qa5 (7...Qa4 8.Bf8 Kf8 9.Qd3 Qa5 10.Nc3 Qe5-/+; 7...Qb6 8.Bf8 Kf8 9.Nc3 d5 10.ed5 Bh3+=; 7...Qd4 8.c3 Qb6 9.e5 f3 10.gf3 Ne7+=) 8.Bf8 Kf8 9.c3 g5 10.d4 Ke7-/+.

6.Nf2 A) 6...d5 A1) 7.Qe2 Qb4 (7...Be6 8.a3 Nd7 9.Nc3 de4 10.Qe4 Bf5+=; 7...de4 8.Ne4 Be6 9.b5 Qd7 10.Qh5 Bf7+=; 7...Na6 8.a3 Nc7 9.Qf3 de4 10.Qf4 f5-/+; 7...Nh6 8.ed5 Qe2 9.Be2 Bb4 10.Nd3 Bd6+=) 8.ed5 Ne7 9.Bc3 Qd6 10.dc6 Nbc6-/+; A2) 7.Qh5 g6 (7...Kd8 8.b5 de4 9.Ba3 c5 10.Qd5 Nd7-/+) 8.Qe2 Be6 9.Nd3 de4 10.Qe4 Bf5-/+; B) 6...Nh6 B1) 7.a3 a5 (7...d5 8.Qe2 Be6 9.ed5 Bd5 10.Qe7 Be7+=; 7...f5 8.Qh5 Kd8 9.e5 a5 10.Be2 ab4=; 7...b5 8.Qf3 d5 9.Qf4 de4 10.Be2 f5=) 8.b5 d5 9.Qe2 de4 10.Ne4 Bg4–+; B2) 7.Qh5 Nf7 (7...Kd8 8.a3 d5 9.Qf3 de4 10.Qf4 f5+=; 7...Qf7 8.Be2 Bb4 9.Nd3 Be7 10.Nf4 0-0+=) 8.a3 d5 9.Qe2 de4 10.Ne4 Bf5-/+; B3) 7.Nc3 Qb4 (7...d5 8.Qh5 Nf7 9.0-0-0 Qb4 10.ed5 Be7+=) 8.Nd3 Qe7 9.Qh5 Kd8 10.Nf4 d5-/+; B4) 7.Ba3 f5 (7...b5 8.Be2 Qe6 9.0-0 a5 10.ba5 Ba3-/+; 7...d6 8.Qf3 Qe5 9.Nc3 f5 10.Qh5 g6-/+; 7...Nf7 8.b5 d6 9.Nc3 f5 10.Bc4 Ne5+=) 8.b5 Qf6 9.d4 Ba3 10.Na3 fe4-/+; B5) 7.b5 f5 (7...d5 8.Ba3 Qe6 9.Qh5 Kd7 10.Bf8 Rf8+=; 7...a6 8.bc6 dc6 9.Qh5 Nf7 10.Bc4 b6+=) 8.Qe2 fe4 9.Ne4 Kd8 10.Nf2 Nf5-/+ ; C) 6...b5 C1) 7.a3 d5 (7...a5 8.ba5 d5 9.Qh5 Kd8 10.a4 b4+=; 7...Nh6 8.Qf3 d5 9.Qf4 de4 10.Be2 f5=; 7...Qe6 8.Qh5 Kd8 9.Qf3 a5 10.ba5 Ra5=) 8.Qh5 Kd8 9.Qf3 de4 10.Qf4 f5+=; C2) 7.Bc3 a5 (7...d5 8.Qh5 Kd8 9.a4 de4 10.ab5 Bb7+=; 7...Nh6 8.a4 d5 9.Qf3 Nf5 10.Be2 de4=) 8.a4 ab4 9.ab5 Ra1 10.Ba1 d5+=; C3) 7.c3 d5 (7...a5 8.ba5 Ra5 9.Qh5 g6 10.Qg4 Bh6+=) 8.Qh5 Kd8 9.d3 f5 10.a4 fe4-/+; C4) 7.Qh5 g6 (7...Kd8 8.Be2 d6 9.a4 ba4 10.0-0 Nd7+=) 8.Qf3 Qb4 9.Nd3 Qe7 10.Be2 g5+=; D) 6...Qb4 D1) 7.Bc3 Qd6 (7...Qc5 8.Qf3 Qg5 9.Nh3 Qh6 10.Nf4 Bd6+=; 7...Qe7 8.Qh5 Qf7 9.Qf7 Kf7 10.Bc4 Ke8-/+; 7...Qa4 8.Bd3 Na6 9.Qh5 Kd8 10.Ba6 Qa6-/+) 8.Qh5 Kd8 9.Bc4 b6 10.Bg8 Rg8-/+; D2) 7.Ba3 Qd4 (7...Qb6 8.Bf8 Kf8 9.Nc3 Ke8 10.Qh5 g6+=; 7...Qa5 8.Bf8 Kf8 9.Qf3 Ke8 10.Nc3 d6-/+; 7...Qa4 8.Bf8 Kf8 9.Nc3 Qd4 10.Ne2 Qd6-/+) 8.Bf8 Kf8 9.c3 Qb6 10.Qc1 Ne7-/+.

6.Qh5!? A) 6...Kd8 A1) 7.Nf2 d5 8.b5 de4 9.Ba3 c5 10.Qd5 Nd7-/+; A2) 7.Nc3 Qb4 (7...Nh6 8.Nf4 d5 9.Qe2 Bg4 10.Qe3 Qb4-/+; 7...d5 8.Nf4 d4 9.Nce2 Qe4 10.Qf7 Nh6+=; 7...g6 8.Qf3 Qb4 9.Rb1 g5 10.Nf2 Qa5+=) 8.Rb1 g5 9.Nf2 Qe7 10.Be2 d6-/+; A3) 7.Qe2 d5 8.Nf4 Qe4 9.Qe4 de4 10.Nc3 Bf5+=; B) 6...g6 7.Qe2-/+ Qb4 (7...d5 8.Nf2 Be6 9.a3 Nd7 10.ed5 Bd5+=; 7...Na6 8.a3 d5 9.Nf4 Bh6 10.g3 Qe4+=; 7...Bg7 8.Nf4 Qb4 9.Bc3 Qe7 10.Qe3 d6+=) 8.Ba3 Qb6 9.Bf8 Kf8 10.Nc3 d5-/+.

6.Bd3 d5–+

7.Qe2 Qb4 8.ed5 Ne7 9.Bc3 f3 10.Qf3 Qh4-/+.

7.Qe2 de4 8.Be4 f3 9.Bf3 Qe2 10.Be2 Bh3-/+.

7.Qe2 f3 8.Qf3 de4 9.Qe4 Qe4 10.Be4 Bh3-/+.

7.Qe2 Bh3 8.gh3 Qb4 9.ed5 Ne7 10.Bc3 Qd6-/+.

7.Qe2 Bh3 8.gh3 Kd8-/+.

7.Qe2 Nh6 8.Nf2 Qb4 9.ed5 Kd8 10.Bc3 Qe7=+.

7.e5 Kd8 8.Qh5 Nh6 9.Nf2 Nd7 10.0-0 Ne5–+.

7.e5 fe5 8.Qh5 Kd8 9.Qe5 Bh3 10.Qe7 Ke7–+.

7.e5 g6 8.Ng1 fe5 9.Qe2 Bg7 10.c4 Kd8–+.

7.e5 Nh6 8.Qe2 Bh3 9.gh3 fe5 10.Qe5 Qe5–+.

7.Nf4 Qb4?! 8.Ba3 Qd4 9.c3=.

7.Qh5 Kd8 8.Nf4 g5 9.Nh3 de4 10.Bf1 e3-/+.

7.Nf4 de4–+

8.0-0? ed3?! 9.Re1 dc2 10.Re7 Be7 11.Qc2 Bb4 12.Ba3=.

8.0-0? ed3 9.Re1 dc2 10.Re7 Be7 11.Qc2 Bb4 12.Qe4 Be7 13.Ba3=.

8.Be2 Qc7 9.Nh5 Bb4 10.Bg4 Bf8-/+.

8.Qh5 g6 9.Ng6 hg6 10.Qg6 Kd8 11.Qe4 Qb4 12.Qb4 Bb4 13.h4–+.

8.0-0? Qb4

9.Be4 Qb2 10.Nc3 Qb6 11.Kh1 Bd6 12.Qh5 Kd8 13.Ng6-/+.

9.Be4 Qb2 10.Nc3 Qb6 11.Kh1 Ne7–+.

9.Be4 Qb2 10.Nc3 Qb6 11.Kh1 Nh6 12.Qh5 (12.Qe2 Be7–+) 12...Kd8 13.Rab1 Qc7 14.Qf3 (14.Rbe1 Bd6 15.Nd3 Bg4–+) 14...Bd6 15.Qd3 f5 16.Bf3 Re8 (16...Qd7 17.Be2–+) 17.Nh5 (17.Rbe1 Na6 18.Bh5 Re1 19.Re1 Bd7–+) 17...g6 (17...Re7 18.Nf4–+) 18.Nf6 Re6 (19.Qd4 Qg7–+) 0–1. Nielsen,C – Saunders,M, corr DEN–GBR, 1996.

9.Be4!? Qb2 10.Qh5 Kd8 11.Nc3.

9.Be4 Bc5 10.Kh1 Qb2 11.Qh5 Kd7 12.Qf7 Ne7 13.Nc3–+.

9.Be4!? Qe4 10.Re1.

9.Be4 Nh6 10.Bc3+= Qd6 (worse is 10...Qe4 11.Re1 Qe1 12.Qe1 Kd8 13.Bd4+=) 11.Qh5 Nf7 (11...Kd8 12.Qa5 b6 13.Qa4+=) 12.d4= g6 13.Qe2 Be7 14.Nd2 f5 15.Bd3 0-0 16.Nc4 Qc7 17.Rae1 Bf6 18.g4 (better is 18.Ne5!?=) 18...b5+= (18...fg4 19.Ng6 Bd4 20.Bd4 hg6 21.Bg6+-) 19.Nd2 (19.Ne3 Bg5 20.Qf3 Bf4 21.Qf4 Qf4 22.Rf4-/+) 19...Nd6 (better is 19...b4!? 20.Bb2 Bh4 (20...fg4? 21.Ng6 hg6 22.Rf6+-) 21.gf5 Be1 (worse is 21...Bf5 22.Bf5 Be1 23.Qe1+/-) 22.Qe1 g5= (22...Bf5 23.Bf5 Qa5 24.Ng6 Qa2 25.Ne7 Kg7 26.Qg3 Kh8 27.Kh1+-)) 20.gf5= Nf5 21.Bf5 (21.Ne6 Be6 22.Qe6 Qf7 23.Qf7 Kf7 24.Bf5 gf5 25.Rf5=) 21...Bf5+/- 22.Ne6 Qd6 23.Nf8 Qf8 24.Qg2 (24.Ne4 Nd7+/-) 24...Bg7 25.Ne4 Qd8?? (better is 25...b4 26.Bb2 Qd8+=) 26.Rf5!+- gf5 (26...Bd4 27.Bd4 Qd4 28.Nf2 Na6 29.Qc6 Nc7+-) 27.d5! Qf8 (27...cd5 28.Qg7; 27...Qd5 28.Qg7) 28.Bg7 Qg7 (28...fe4 29.Bh6 Kf7 30.Rf1 Ke7 31.Qe4 Kd6 32.Bf8 Kc7 33.Rf7 Nd7 34.Rd7 Kd7 35.Qe7 Kc8 36.d6 b4 37.Qc7) 29.Nf6 Kf7 30.Re7!! (30.Re7 Ke7 31.Qg7 Kd6 32.Qb7+-) 1–0. Kolesnikov – Petrov, corr, 1977.

5.Qh5 g6

6.Qf3 Bb4 7.Ne2 Qe7 8.a3 Ba5 9.Nbc3+=.

6.Qh4 Bb4 7.Ne2 Qe7 8.Qf4 d6 9.Nbc3+=.

6.Qh4 d5 7.ed5 Qd5 (7...Bb4 8.Bd3 Qe7 9.Ne2+=) 8.Qf4 Bd6 9.Qe3 Qe6 10.Qe6 Be6 11.a3 Nd7 12.Nf3 Nh6 13.Be2 0-0 14.0-0 Rae8 15.Nd4 Bf7 16.Bf3 Be5 17.d3 (17.Bc3 Nb6+=) 17...Nb6 18.c3 Na4 19.Bc1 Bd4 20.cd4 Nf5 21.b5 cb5 22.Bb7 Rb8 23.Be4 Nd4 24.Bf4 Ne2 25.Kh1 Nf4 26.Rf4 f5 27.Bf3 Nc5 28.Nc3 Nd3 29.Rd4 Ne5 30.Bd5 Rfc8 31.Bf7 Kf7 32.Nd5 Rc5 33.Nb4 Rbc8 34.h4 Rc1 35.Rc1 (35.Rd1 Ra1 36.Ra1 a5–+) 35...Rc1 36.Kh2 Rc3 37.Rd5 (37.a4 Ng4 38.Rg4 fg4 39.ab5–+) 37...Ng4 (37...Ng4 38.Kg1 Rc1 39.Rd1 Rd1) 0–1. Morriss,Pete R – Heidenfeld,Mark (2355), IRL–chT Clubs, 2007.

4.Qh5 g6=+

5.Qf3 a6 6.Bc4= Bg7 7.Qb3 (7.Be5 Qe7 8.Bd4 d5=) 7...Nh6 (7...Ne7 8.Nc3=) 8.a4 (8.Nf3+=) 8...d5 (better 8...f5!? 9.d3 Qg5=) 9.ed5+/- cd5 10.Bd5 Bd7? (10...Nc6 11.Bc3+/-) 11.b5 (11.Bb7!? Ra7 12.Be4 f5+-) 11...Bc8 (11...ab5 12.ab5 Ra1 13.Ba1+/-) 12.Nf3+- a5 (12...ab5!? 13.ab5 Ra1 14.Ba1 Nd7+-) 13.0-0 Nd7 14.d4 Nb6 15.Nc3 Nd5 16.Nd5 e4 (16...Be6 17.Nc7! Qc7 18.Qe6 Qe7 19.Qe7 Ke7 20.de5+-) 17.Rfe1 f5 18.Ne5 (18.Ng5 Kd7+-) 18...Be5 (18...Be6 19.Nc7! Qc7 20.Qe6 Qe7+-) 19.de5 Be6 20.Nc7! Qc7 21.Qe6 Qe7 22.Qb3 0-0-0 23.c4 (better 23.Ba3!? Qf7 24.e6+-) 23...Rd3 (23...Ng4 24.Qc2+/-) 24.Qc2+/- Rhd8 25.Bc3 b6 26.Rad1 Qd7? (better 26...Nf7!? 27.Rd3 Rd3+-) 27.e6! Rd1?? (27...Qe6 28.Rd3 Decoy) 28.ed7 (28.ed7 R1d7 29.c5+-) 1-0. Nf3 (1920) - zonik (1795), Rated Classical game, lichess.org, 2013.

5.Qf3 Bb4

6.Bc4 b5 7.Bg8+- Rg8 (7...d5!? 8.Be5 Rg8 9.Bf6 Be7+=) 8.Qb3+- Rg7 (8...Bd2 9.Nd2 d5 10.f4 ef4 11.Ne2+-) 9.Qb4 d6 (9...d5 10.d4 Qe7 11.Qe7 Re7 12.de5 fe5 13.ed5 cd5 14.Nc3+-) 10.Ne2 Be6 11.0-0 a5 12.Qc3 Qd7 13.f4 Ke7 (13...Qa7 14.d4+-) 14.fe5 fe5 15.d4 ed4 16.Qd4 Rg8 17.Qf6 Ke8 18.Nd2 Na6 19.Nd4 Bf7 (19...Nc7+-) 20.e5 de5 21.Qe5 Kd8 22.Ne4 Nc7 (22...Re8 23.Nc6! Qc6 24.Rad1 Kc8 25.Nd6 Qd6 26.Qd6 Be6 27.Qc6 Nc7 28.Be5 Ra7 29.Bc7 Bd5 30.Rd5 Ra6 31.Qa6 Kc7 32.Rf7 Re7 33.Re7 Kb8 34.Rb5) 23.Qg5 Kc8 24.Rf7! Qd5 (24...Qf7 25.Nd6 Double attack (25.Nd6 Decoy)) 25.Qd5 Nd5 (25...Ra7 26.Nd6 Kb8 27.Nc6 Ka8 28.Rc7 Rc7 29.Qg8 Rc8 30.Qc8) 26.Nd6 (26.Nd6 Kd8 27.Nc6) 1–0. guest1581 – hevans, chessclub.com, 2018.

6.Bc4 h5 7.Be5 (better is 7.Bg8!? d5 8.Be5+=) 7...d5= 8.Bf6?? (better is 8.Bb8 dc4 9.a3+=) 8...Nf6 9.ed5 cd5 10.Bb5 Bd7 11.Bd7 Kd7 (11...Nbd7 12.Ne2–+) 12.Nh3 (12.Ne2 Re8–+) 12...Ne4 (12...Re8!? 13.Kd1–+) 13.Qf7 Kc8 14.Qg6 Nd7 15.c3 Bc5 16.Qf5? (16.0-0 Qc7–+) 16...Rf8 (16...Qb6!? 17.0-0 Qb2 18.Qd5–+) 17.Qd5 Bf2 18.Nf2 Nf2 19.Rf1?? (19.0-0 Qb6 20.d4–+) 19...Qh4 (19...Qe7 20.Qe6 Qe6) 20.Qd4 (20.Rf2 Rf2 21.g3 Qh2 22.Kd1–+) 20...Nh1 (better is 20...Re8 21.Qe3 Ng4 22.Kd1 Ne3 23.de3 Re3–+) 21.Qh4+- Re8 22.Kd1 a5 23.Rh1 Ra6 24.Re1 Rf8 25.Qc4 (25.Qh5 Kd8+-) 25...Kb8 26.Na3 Nb6 Black prepares the advance a4 27.Qd4 a4 28.Qd6 Ka7 (28...Ka8 29.Qf8 Nc8 30.Qc8 Ka7 31.Nb5 Kb6 32.Qc7 Kb5 33.Rb1) 29.Qf8 (29.Nb5 Ka8 30.Qf8 Nc8 31.Qc8) 29...Ra5+- 30.c4 Nd7 31.Nb5 (31.Qd8 Rd5 32.cd5 Nb6 33.Re6 Nc8 34.Qc8 b5 35.Nb5) 31...Kb6 32.Re6 (32.Qd6) 1–0. Barry49434 – JimDog, ChessWorld.net, 2005.

6.Bc4 Nh6 7.c3 Ba5 8.Bc1+=.

5.Qh4 d5

6.ed5 cd5 7.a3 Nc6 8.Nc3 (8.Bd3 Bg7=) 8...Be6 9.0-0-0 (9.Nf3 Nh6 10.b5 Nb4 11.ab4 Nf5=+) 9...f5 (9...Nh6!?-/+) 10.Qd8= Rd8 (worse 10...Nd8 11.Nb5 Ke7 12.Be5+-) 11.Re1 d4 12.Nce2 Bg7? (12...a6=) 13.d3?? (13.b5 Na5 14.Nd4 ed4 15.Re6 Kf7+/-) 13...Nge7 (13...Rd6 14.f4 ef4 15.b5+=) 14.f4 (14.b5 Na5 15.Nd4 ed4 16.Re6 Kd7+=) 14...Nd5 (better 14...e4!?-/+) 15.Nf3 Ne3 (15...Nc7!?+=) 16.fe5 Kf7? (better 16...Bh6 17.Kb1 Bd5+/-) 17.Ned4+- Bh6 18.Kb1 f4 (18...Rhe8 19.Nb5 Re7 20.Nd6 Kg8 21.b5+-) 19.Ne6 Ke6 20.d4 g5 (20...Nf1 21.Ref1 b5 22.Rf2+-) 21.c4 g4 22.d5 Nd5 23.cd5 Rd5 24.Bc4 gf3 25.gf3 Ne7 26.Rd1 b5 (26...Rg8 27.Rd2+-) 27.Bb3 (better 27.Rd5 Nd5 28.Bd5 Kd5 29.Rd1 Ke6 30.Rd6 Kf5 31.Rh6+-) 27...Rhd8 28.Rd4 Kf5 29.Bd5 Rd5 30.Rd5 Nd5 31.Rd1 Ke6 (31...Nb6 32.h4 Bf8 33.Rd8+-) 32.Rg1 (better 32.Rc1!? Bg7 33.Rc6 Kf5+-) 32...Ne3 33.Rg8 Nc4 34.Rh8 (34.Re8 Kd5+-) 34...Nd2? (34...Bg7 35.Rh7 Be5+-) 35.Kc2 Nf3 36.Rh7 Bf8 (36...Bg5 37.h3 Be7 38.Rh6 Kf5 39.Ra6+-) 37.h4 (37.Ra7 Ne5 38.Be5 Ke5+-) 37...Be7 38.h5 Ng5 39.Rh6 Kf5 40.Kd3 (40.Ra6 f3 41.Kd3 Ne4 42.Ra7 f2+-) 40...f3 (40...Bd8 41.Rd6 Bc7 42.Rf6 Kg4 43.h6+-) 41.Ke3 (better 41.Ra6!? f2 42.Ke2 Bd8+-) 41...Bd8 42.Bd4 (42.Rc6 Kg4 43.h6 Bb6 44.Rb6 ab6+-) 42...Ne6 43.Ba7?? (better 43.Re6 Bg5 44.Kf3 Ke6 45.Be3+- (worse 45.Ba7 Ke5 46.Be3 Bf6+-)) 43...Bg5-/+ 44.Kf2 (44.Kf3 Bh6 45.Be3 Ng5 46.Ke2=) 44...Bh6-+ 45.a4?? (45.Kf3 Ke5 46.Kg4 Bc1-+) 45...Ke5 (better 45...ba4 46.b5 Ke4-+) 46.ab5 (better 46.a5 Ke4 47.Bb6-/+) 46...Ng5?? (better 46...Ke4 47.Kf1 Ng7-+) 47.b6+- Bf8 48.b7 Bd6 49.b8Q (49.b8Q Bb8 50.Bb8 Kf5 51.Ke3+-) 1-0. jhonores (2285) - kawesh (2240), Rated Blitz game, lichess.org, 2020.

6.ed5 cd5 7.Bb5 Nc6 8.Ne2 Be6 9.0-0 Nge7?? 10.Qf6+-.

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  • 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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