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TESTC900 Release 2023-12-08
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6

(...)

6.a3 a6 7.cd5 cd5 8.d4 (8.Nd4 Bg6=) 8...Nc6 9.Nc3 b5 (9...Bd6 10.Rc1=+) 10.Bd3 (10.Rc1 Qb6=) 10...Bd3=+ 11.Qd3 Rc8 12.0-0 Nd7 (12...Bd6 13.Rac1=) 13.Rac1= Be7 14.Ne2 (14.e4 Nb6=) 14...Nb6=+ 15.Ng3 Nc4 16.Qe2 0-0 17.Nd2?? (17.Rc3 a5–/+) 17...Qb6 (better 17...Nb2 18.f4 Nc4 19.Nc4 bc4–+) 18.Nc4=+ dc4 (18...bc4 19.e4 Bg5=+ (worse 19...Nd4 20.Qe3 e5 21.ed5+=)) 19.e4 (better 19.Nh5!? g6 20.Qf3=) 19...Nd4–/+ 20.Bd4 Qd4 21.Rfd1 Qe5 22.Qg4 (22.Rd7 Rcd8 23.Rcd1 Rd7 24.Rd7 Bh4–+) 22...Bf6 (22...Qb2!? 23.Nh5 g6 24.Nf4 Qa3 25.Ra1 Qb4 26.Ra6–+) 23.Nh5–/+ g6 (better 23...Bd8–/+) 24.f4?? (better 24.Nf6 Qf6 25.Qg3–/+) 24...Qh5–+ 25.Qh5 gh5 26.e5 Bg7 27.g3 (27.Rd6 f6 28.Re6 fe5 29.fe5 Ra8–+) 27...Rfd8 (27...f6 28.ef6 Bf6 29.Rc2–+) 28.Kg2 Rd5 (28...Rd1 29.Rd1 c3 30.Rc1–+) 29.Re1 (29.Kf3 f6 30.Rd5 ed5–+) 29...Rcd8 30.Re2 (30.Re3 Rd2 31.Kh3 R2d3 32.Rd3 Rd3–+) 30...Rd2 31.Rce1 R8d3 32.Kf2 (32.Rd2 Rd2 33.Kh3 Bh6–+) 32...Re2 33.Re2 Ra3 34.Rd2 (34.Rb2 Bf8 35.Ke2 Ra4–+) 34...h6 (34...Bf8 35.Ke2–+) 35.Rd8 (35.Ke2 Bf8 36.Rb2 Ra4–+) 35...Kh7 (35...Bf8 36.Ke2–+) 36.Rd6 (36.Ra8 Ra2 37.Kf3 Rh2–+) 36...Kg6 (better 36...Bf8 37.Rc6 Bb4–+) 37.Ra6 (37.Rd8–+) 37...Ra6 38.Ke3 Rc6 39.Kd2 c3 40.Kc2 Bf8 41.Kd3 Bb4 (41...c2 42.Ke3 c1Q 43.Kf3 Qd1 44.Ke3 Qb3 45.Ke2 Rc2 46.Ke1 Qb1) 42.Kc2–+ Ba5 43.h3 Kf5 44.h4 Kg4 45.Kd3 Kg3 (45...c2 46.f5 c1Q 47.fe6 Qd2 48.Ke4 Rc4) 46.Ke2 (46.Kc2 b4 47.Kb3 c2 48.Kb2 c1Q 49.Ka2 Qd2 50.Kb3 Qc2) 46...Kf4 (46...c2 47.Ke3 c1Q 48.Ke4 Qc2 49.Kd4 Bb6) 47.Kd3 (47.Ke1 c2 48.Kf1 c1Q 49.Ke2 Qd2 50.Kf1 Rc1) 47...c2 48.Ke2 Rc4 (48...c1Q 49.Kd3 Qe3) 49.Kf2 (49.Kf1 c1Q 50.Ke2 Qd2 51.Kf1 Rc1) 49...c1Q 50.Kg2 (50.Ke2 Qd2 51.Kf1 Rc1) 50...Qe3 (50...Qd2 51.Kf1 Rc1) 51.Kh1 (51.Kf1 Rc1 52.Kg2 Qg3) 51…Rc2 (51...Rc1 52.Kg2 Qg3) ½–½. alddhsfd (1860) – matemeister (1970), lichess.org, 2019.

6.Qb3 a5 7.b5 a4 8.Qc3 (8.Qd1!?+=) 8...cb5–/+ 9.c5 (9.cd5 b4 (worse is 9...Qd5 10.Qc8 Qd8 11.Qb7+/–) 10.Bb5 Nbd7–/+) 9...Nbd7 (9...Nc6 10.Bb5 Ne4–+) 10.Ne5? (better is 10.Bb5!? Ne4 11.Qd4–/+) 10...b4 (10...a3 11.Ba3 Ra3 12.Na3–+) 11.Qb4 Bc5 12.Qb5 0-0 13.g4 (better is 13.Nd7 Nd7 14.d4–+) 13...Be4 14.Rg1 Ne5 15.Be5 Nd7 16.Bg3 (16.Bd4 Bd6 17.Nc3 Bh2 18.Ne4 Bg1–+ (18...de4?! 19.Rh1 Be5 20.Qb7 Bd4 21.Qe4–/+)) 16...d4 17.Bg2 Ra5 18.Qb2 Bg2 19.Rg2 Qf6 20.g5 (20.Na3 Ba3 21.Qa3 de3–+) 20...Qf3 21.Rg1 e5 (21...Ba7 22.Na3 Rg5 23.Qc2–+) 22.Qc2 (22.Na3 Be7–+) 22...Be7 23.Qd1 Qd1 (better is 23...Qd5 24.Kf1–+) 24.Kd1 Rc8 25.f4 (25.ed4 ed4 26.h4 Nb6–+) 25...de3 26.de3 Rd5 27.Nd2 (27.Ke2 Rc2 28.Kf3 Rd3–+) 27...Nb6 28.Ke2 Rc2 29.Rgd1 Nc4 30.Be1 b5 31.a3 (31.Rac1 Ra2 32.Ra1–+) 31...ef4 32.ef4 (32.Rac1 f3! 33.Kf3 Nd2 34.Bd2 Rdd2 35.Rd2 Rd2–+) 32...Ba3 33.h4 (33.Kf3 Rd3 34.Ke4 Re3 (34...Nd2? 35.Kd3 Rc8 36.Bd2 Rd8 37.Ke2+–) 35.Kf5 g6 36.Kg4 Re1 37.Re1 Rd2 (37...Nd2?! 38.Ra3 Nb3 39.h4–/+) 38.Re8 Kg7–+) 33...g6 34.h5 (34.Kf3 Rd3 35.Ke2 Re3 36.Kf2 Bc5–+) 34...gh5 35.f5 Bb2 0–1. Grasso,Gaetano (2075) – Horvath,Csaba3 (2535), Amantea ITA, 2014.

6.Qb3 Na6 7.a3 Nc7 8.d3 Be7 (8...dc4 9.dc4 Qe7 10.Nbd2=) 9.Be2 0-0 10.h3 (10.0-0 a5=) 10...dc4 11.dc4 c5 (11...a5 12.0-0=) 12.Nbd2 b6 (12...Qc8 13.Nh4=) 13.Rd1 Qc8 (13...cb4 14.Ne4 Nd7 15.Ne5 Be4 16.Rd7=) 14.Ne5 Ne4 (14...a5 15.ba5 ba5 16.Nc6+=) 15.0-0 (15.Bf3 Qb7 16.bc5 Bc5+–) 15...Qe8? (15...cb4!? 16.ab4 f6+=) 16.Bf3 (16.Ne4!? Be4 17.Nd7 cb4 18.ab4 a5+–) 16...Nd2+/– 17.Rd2 f6 (17...Rd8 18.Rd8 Qd8 19.Rd1+–) 18.Bc6 (18.Ba8 Qa8 19.Rd7 Bd8+–) 18...Qh5 (better is 18...Qc8 19.Ba8 Qa8+–) 19.Bf3?? (19.Ba8 Ra8 20.Rd7 fe5 21.Re7 Bh3 22.Rg7 Kg7 23.gh3 Kf6+=) 19...Qe8 20.Nd7 Rd8 21.Rfd1 e5 22.Nf8 Qf8? (better is 22...Rd2 23.Rd2 Qf8+–) 23.Rd8 Bd8 24.Bd5 Ne6?? 25.e4 Bh3 26.Qh3 (26...Kh8 27.Qe6+–) 1–0. Knobloch,Rainer – Springer,Guido, Landesliga LL, 2000.

6.b5 Qa5 7.Nd4 Bb1 8.Qb1 Bb4 9.Nb3 Qd8 10.a3 Be7 11.d4 0-0 12.Be2 (12.c5 Qd7=) 12...Nbd7 (12...dc4 13.Bc4 cb5 14.Be2+=) 13.Qd1 (13.bc6!? bc6 14.Qc2=) 13...dc4+= 14.Bc4 Nb6 15.Bd3 Na4 16.Bc1 Nc3 17.Qf3 Qb6?? (17...Nb5 18.Bb5 cb5 19.Qb7+=) 18.a4?? (better is 18.Bd2 Nfd5 19.e4 Nb5 20.ed5 cd5 21.Ba5+–) 18...cb5+= 19.ab5 Nb5 20.0-0 Rfc8 21.Bd2 Na3 22.Nc5 (22.Na5!?+=) 22...Bc5–/+ 23.dc5 Qb3 24.e4 Rc5?? (better is 24...Rd8 25.Be2 Qf3 26.Bf3 Rd2 27.Ra3 Nd7–/+) 25.e5+/– Qd5 (25...Re5 26.Bh7 Double attack) 26.Qd5 Rd5 27.Ra3 Ng4 28.Bf4 Ne5 29.Be5 Re5 30.f4 Rc5 31.Be4 (31.Rb1!?+/–) 31...Rb5+= 32.Rd1 f5 33.Bf3 a5 34.Rd7 Rb8 35.Re7 b6 36.Kf2 Kf8 37.Re6 Rb4 38.Kg3 Rd8 39.Rae3 Rd7 40.R6e5 (40.Re8!? Kf7+/–) 40...g6+/– 41.h4 a4 42.h5 Ra7? (42...Kg7 43.Bd5+=) 43.Ra3 (better is 43.h6 Rd4 44.Bd5 Rd5 45.Rd5+–) 43...Re7+/– 44.Re7 Ke7 45.hg6 hg6 46.Bc6 b5 47.Bb5 (47.Rd3!?+/–) 47...Rb5= 48.Ra4 Rb6 ½–½. SteveF1953 – Snicks, ChessWorld.net, 2013.

6.b5 Qb6 7.a4 Nbd7 8.Nc3 Be7 9.cd5 cd5 10.Be2 h6 (10...e5 11.a5 Qc7 12.0-0=) 11.0-0 0-0 12.d4 (12.a5 Qc7=) 12...Rfc8 13.a5 Qd8 14.Qb3 Ne4 15.Rfc1 Bd6 16.a6 b6 (16...ba6 17.Ra6 Nb8 18.Raa1=) 17.Ne4 Be4 18.Qa3?? (better is 18.Ba3 Ba3 19.Qa3 Rc1 20.Rc1+=) 18...Ba3–+ (18...Ba3 19.Ba3 Rc1 20.Rc1 Rc8–+) 0–1. Busele – Worf, playchess.de, 2001.

6.b5 Bg6 7.a4 Nbd7 8.Be2 Bd6 9.0-0 Qe7 10.d4 0-0 11.Nbd2 Rad8 12.Ne5 Bb8 (12...Be5!? 13.de5 Ne4=) 13.bc6+/- Ne5 14.de5 Nd7?? (better 14...Qc7 15.cb7 dc4+/-) 15.cd7+- Qd7 16.Nf3 dc4 17.Qd7 Rd7 18.Bc4 Rc8 19.Bb5 Rdc7 20.Bd4 (20.Rfd1 Rc2 21.Ba3 Bh5+-) 20...Rc2 (20...a6 21.Be2+-) 21.a5 a6 (21...R2c7 22.Rfd1+-) 22.Ba4 R2c4 23.Bb3 R4c6 24.Bb6 h6 25.Nd4 Rc3 26.f4 Be4 27.Rfe1 Kh7 28.Bd1 f6 (28...Bc7 29.Bc7 R3c7 30.Kf2+-) 29.Bf3 (better 29.ef6!? gf6 30.Ne6 f5+-) 29...Bf3 30.Nf3 fe5 31.fe5 R8c6 (31...g5 32.Bd4 R3c7 33.Reb1+-) 32.Bd4 Rc2 33.Kf1 Rc8 34.Re2 R2c4 (34...Rc1 35.Rc1 Rc1 36.Re1 Re1 37.Ne1+-) 35.Rb1 R4c7 36.Reb2 Rc1 37.Ke2 Rb1 38.Rb1 Bc7 (38...Rc2 39.Kd3 Rc7 40.Nd2+-) 39.Rb7 (better 39.Rc1 g5+-) 39...Ba5 40.Nd2 Rc2 41.Rb2 Rc7 (41...Rb2 42.Bb2 Kg6 43.Nb3+-) 42.Ne4 Rf7 (42...Rc6 43.Rb7 Bc7 44.Nd6+-) 43.g4 (43.Ra2!? Bb4 44.Ra6 Re7+-) 43...Bc7 44.g5 (44.Nc5!? Re7+-) 44...Kg6 45.h4 (45.Nc5 Kg5 46.Ra2 a5 47.Ne6 Kf5 48.Nc7 Rc7+-) 45...hg5 (45...a5 46.Rb7+-) 46.Ng5 (worse 46.hg5 a5+-) 46...Rd7 (46...Re7 47.Rb7 Bd8 48.Rb8+-) 47.Ne6 (better 47.Rb7!? Kf5+-) 47...Kf5 48.Nf4 (48.Nc7 Rc7 49.Kf3 Kg6+-) 48...Ke4 (48...Be5 49.Be5 Ke5 50.Nd3 Kd5+-) 49.Rb4 (49.Rb4 Be5 50.Nd3+-) 1-0. BeepBeepImAJeep (2585) - tushinskiy (2260), lichess.org, 2016.

6.c5 a6 7.Nh4 Bg6 8.Ng6 hg6 9.Qc2 Nbd7 10.Nc3 Qc7 11.f4 Be7 12.Be2 e5 13.fe5 Ne5 14.h3 Neg4 15.Na4?? (15.Bg4 Qg3 Double attack (15...Qg3 Decoy); 15.hg4 Qg3 Double attack (15...Rh1 Pinning; 15...Rh1 Deflection)) 15...Qg3–+ 16.Kd1 Nf2 17.Kc1 Nh1 18.Nb6 Rd8 19.Kb1 (19.Bf3 Nf2–+) 19...Qe1 (19...Qg2 20.Bd1–+) 20.Bd1 (20.Qd1 Qf2 21.Qf1–+) 20...Nf2 21.Kc1 Nd1 22.Qd1 Qd1 (better is 22...Qf2 23.Qf3 Qf3 24.gf3 Rh3 25.Be5–+) 23.Kd1 0-0 24.a4 Ne4 25.Bd4 Bf6 26.Bf6 gf6 27.Ke2 d4 28.Kd3 (28.d3 Ng3 29.Kf3 Nf5–+) 28...Nf2 (better is 28...de3 29.Ke3 Rfe8 30.Ra3–+) 29.Ke2 de3 30.de3 Ne4 31.Kf3 f5 32.g4 Rd2 33.gf5 gf5 34.Kf4 Rf2 35.Ke5 f6 36.Ke6 Ng5 37.Ke7 (37.Kd7 Nh3 38.Nc4 Rf7 39.Kc8 f4–+) 37...Rf7 38.Ke8 Re2 (better is 38...Rf3 39.Kd8 Re3 40.Rd1–+) 39.h4 (39.Nc4 f4–+) 39...Re3 40.Kd8 Ne6 41.Kc8 Rd3 (better is 41...Nc5!? 42.Rg1 Kh8 43.Kb8–+) 42.Kb8 Rd8 43.Ka7 Nc7 (43...Rd4 44.Rb1–+) 44.Nc4 (44.Rb1 f4–+) 44...Nd5 45.Nd6 Nc7 (better is 45...Rc7 46.b5 ab5 47.ab5 cb5 48.Nb5 Rc5 49.Nd4–+) 46.Rf1?? (46.Nc4 Rh7 47.Nb6–+) 46...Ra8 (better is 46...Rh7 47.b5 cb5 48.Rf5 ba4 49.Nb7 Rc8–+) 47.Kb7–/+ Raf8?? (better is 47...Rh7!?–/+) 48.Kc6 (better is 48.Nf7!? Rf7 49.Kc6+/–) 48...Ne6 49.Nf7 Rf7 (49...Kf7 50.Kb6 Rb8 51.Ka5 Nd4–/+) 50.Kd6 Nd4 (50...Nc7+=) 51.Rf4 (51.c6 Nc6 52.Kc6 Re7+–) 51...Nc2?? (better is 51...Rf8=) 52.b5+– ab5 53.ab5 Ne3 (53...Na3 54.b6 Nb5 55.Ke6+–) 54.b6 (54.c6 Rf8 55.c7+–) 54...Kf8?? (better is 54...Rb7+–) 55.c6 Ng4 (55...Ng2 56.Rb4 Kg7 57.b7+–) 56.b7 1–0. orangutanb4 (1930) – altim (1845), kurnik, 2011.

6.c5 Na6 7.a3 (7.Ba6 ba6 8.Qa4 Nd7+=) 7...b5 (7...Nb8 8.Nd4=) 8.cb6 Qb6 9.d4 (9.Bd4!? Qb7 10.Nh4 Bb1 11.Rb1+=) 9...Be7 10.Nc3 0-0 11.Be2 Rac8 12.0-0 Nc7 13.Rc1 Nb5 14.Na4 Qb7 15.Ne5 a6 16.Nc5 Bc5 17.Rc5 Ne4 18.Rc1 Ned6 19.Qb3 Bg6 (19...f6 20.Nd3+/–) 20.a4 Nc7 21.Nc6 Na8 22.Ne5 Nb6 23.h3 f6 24.Ng6 hg6 25.Ba3 Ndc4 26.Bc4 (26.Rfd1!?+/–) 26...Nc4+= 27.Qa2 (27.b5 Rfe8+=) 27...Rfd8 28.Rb1 Rc7 (better is 28...Qd7!? 29.Bc1 Rc7+=) 29.b5+/– ab5 30.Rb5 (< 30.ab5 Ra8 31.Rb3 Qb6–/+ (< 31...Ra3 32.Ra3 Na3 33.Qa3+=)) 30...Qa6 31.Bc5 Ra8 32.a5?? (better is 32.Rfb1+/–) 32...Na5 (33.Rfb1 Kh7+/–; better is 32...Qb5 33.Qc2 Qa5 34.Qg6 Nd2–+) 0–1. revrevrevrev – hgflyer, Live Game Caissa's Web, 2004.

6.c5 e6 7.a3 a5 8.Nd4 ab4 9.ab4 Ra1 10.Ba1 Bg4 11.f3 =.

6.c5 Ngf6 7.Be2 Be7 8.d3 h6 9.Nbd2 b6 (9...a5 10.a3=) 10.Nd4+= Qc7 11.Nf5 ef5 12.cb6 ab6 13.a3 0-0 14.Nf3 f4 15.Nd4 c5 16.Rc1 (better 16.Nf5!? Rfe8 17.bc5 Bc5 18.Qc1=) 16...fe3–/+ 17.fe3 Qe5 18.Nc6 Qe3 19.Ne7 Qe7 20.0-0 (20.bc5 bc5 21.0-0 Qe3 22.Kh1 Rfe8–/+) 20...Rfe8 21.Bf3 Rac8 (21...cb4!? 22.ab4 Qb4–+) 22.Re1–/+ Qd6 23.Re8 Re8 24.bc5 bc5 25.Qb3 (25.Qc2 d4–/+) 25...Qe6 26.Bf6?? (26.Qd1 Qe3 27.Kh1 d4–+) 26...Nf6 (better 26...Qe3 27.Kf1 Qc1 (27...Nf6?! 28.Qc3–+; 27...gf6?! 28.Rb1–/+) 28.Qd1 Qd1 29.Bd1 Nf6–+) 27.Qc3–/+ Nd7 28.h3 (28.d4 c4–/+) 28…Ne5 (28...Ne5 29.Rf1 c4 30.dc4 dc4–/+) 0–1. GuestVQCF – ExodusudoxE, freechess.org, 2017.

6.d3 Bb4 7.Bc3 Bc3 8.Nc3 dc4 9.dc4 –/+.

6.d3 Nbd7 7.d4? (7.a3 a5 8.b5 cb5 9.cd5 b4+= (worse is 9...Nd5 10.e4+/–)) 7...h6 (7...Bb1 8.Qb1 Bb4 9.Kd1–/+) 8.Nbd2 (8.c5 Be7=) 8...Ne4 (8...Bb4 9.Qb3 Ba5 10.Bc3 Bc3 11.Qc3–/+) 9.Be2 (9.c5 Qf6=) 9...g5 (better is 9...Bb4 10.a3 Bc3–/+) 10.Ne5?? (better is 10.cd5 cd5 11.a3=) 10...Ne5 11.de5 (11.c5 Nd7 12.0-0–+) 11...Nd2 (better is 11...Bb4 12.Bc1 Bc3–+) 12.Qd2+= g4 13.cd5 Qd5 14.Qd5 ed5 15.e6? Rg8 16.ef7+= Kf7 17.Rd1? Bg7 18.Bg7+= Rg7 19.0-0 h5 20.f3 Ke7 21.Rd4 gf3 22.Bf3 Bg4 23.Bg4 hg4 24.Rff4 Rag8 25.e4 de4 26.Rfe4 Kf6 27.Rd6 Kf5 28.Rde6 Kg5?? 29.R4e5 (29.R4e5 Kf4 30.g3 Kf3 31.Re3) 1–0. Conlon,R – Mackert,Chris, Detroit, 1992. (=1.Nf3 d5 2.b4 c6 3.e3 Bf5 4.c4 e6 5.Bb2 Nf6)

6.Nd4 Bg6 7.cd5 ed5 8.h4 Bb4 9.h5 Bb1 10.Rb1 h6 (better is 10...Ne4) 11.Qb3 Qa5? (better is 11...c5 12.Nf5 0-0) 12.Nf3 Ne4 13.Bc1 Nd7 14.Qb4 1–0. Wall,Bill – WZW, chess.com, 2012.

6.cd5 Bb4 7.de6 Be6 8.Nd4 =.

6.Be2 Bb4!? 7.0-0 dc4 8.Bc4 Bd3 9.Bd3 Qd3–/+.

6.Be2 dc4!? 7.a3 b5 –/+.

6.Be2 Nbd7 7.Qb3 (7.c5 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 b6=) 7...Be7 (7...dc4 8.Bc4 Nb6 9.Be2=+) 8.h3 (8.0-0 dc4 9.Qc4 Nb6=+) 8...0-0 (8...dc4 9.Qc4 Nb6 10.Qb3=+) 9.Nc3 (9.0-0 a5=+) 9...a5 10.cd5 (better is 10.g4!? Be4 11.cd5 ed5 12.g5=+) 10...ab4–+ (10...ed5?! 11.Nd4 Bg6 12.ba5 Qa5 13.d3=+; 10...Nd5?! 11.Nd5 ed5 12.ba5=+; 10...Bb4?! 11.dc6 bc6 12.Qc4=) 11.Nd1 Nc5 (< 11...cd5 12.0-0–/+) 12.Qc4 ed5 13.Qd4 Na4 14.g4 (14.Qf4 Nb2 15.Qf5 Nd1 16.Kd1 Ne4–+) 14...Be4 15.Rg1 (15.d3 Bc5 16.Qe5–+) 15...Bd6 16.g5 Ne8 (16...c5 17.gf6 cd4 18.fg7–+) 17.g6 (17.Ne5 c5 (17...Nb2?! 18.Qb2 Ra3 19.f4–+) 18.g6 cd4 19.gf7 Rf7 20.Nf7 Kf7 21.Bd4 Bh2–+) 17...hg6 (17...Bg6?! 18.Ne5–+) 18.Ne5 (18.Rc1 c5 19.Rc5 Nc5 20.Bb5–+) 18...c5 19.Qe4 de4 20.Bc4 (20.Nc4 Bc7 21.Bc1 Qf6–+) 20…Nb2 (21.Nf7 Qf6 22.Nb2 Qb2 23.Ng5 Kh8–+) 0–1. Moehring,Norbert (1905) – Damm,Fabian (2140), Bad Woerishofen op, 2001.

6.Ne5 Bb4–/+ 7.Nf7?? (better 7.g4 Bb1 8.Rb1–/+) 7...Kf7–+ 8.a3 Bc5 9.d4 Bb6 10.c5 (10.Nc3 Ba5 11.Qb3 Nbd7–+) 10...Ba5 11.Nc3 b6 12.Qb3 (12.Bd3 Bd3 13.Qd3 bc5–+) 12...Nbd7 (12...bc5 13.Be2–+) 13.Be2 (13.cb6 Qb6 14.Qb6 ab6–+ (worse 14...Bb6 15.Na4–+)) 13...Re8 (13...bc5 14.0-0–+) 14.0-0 (14.cb6 Qb6 (worse 14...Bb6 15.0-0–+) 15.Qb6 ab6–+) 14...Ne4 (better 14...bc5 15.Qa2–+) 15.f3 (15.Ne4 Be4 (15...de4?! 16.Bh5 g6 17.Be2–+) 16.f3 Bg6–+) 15...Nc3 (better 15...Nd2 16.Qa4 Nf1 17.Rf1 bc5 18.Qc6 cd4 19.Nb5–+) 16.Bc3 Bc3 (16...bc5 17.Ba5 Qa5 18.Qb7–+) 17.Qc3 Rb8 (17...bc5 18.dc5 Qf6 19.Qf6 Kf6 20.Rfd1–+) 18.e4 de4 (better 18...Bg6–+) 19.fe4= Kg8 (19...Qf6 20.cb6 Rb6 21.Rae1=) 20.ef5 ef5 21.Bc4 Kh8 22.Rf5 bc5 23.d5 (23.dc5!? Rf8 24.Bd3=) 23...cd5–/+ 24.Rf7?? (better 24.Bd5!? Qb6 25.Raf1=+) 24...Nf6 (better 24...Ne5 25.Bd5 Qd5–+) 25.Rd1 d4 (better 25...Qd6!? 26.h3 d4–+) 26.Qg3=+ Rg8 (26...Nh5 27.Qf3 g6 28.Ra7–/+) 27.Ra7 Ne4 28.Qe5 (28.Qe5 Qe8 29.Re7=). zomboeb (1760) – Anannya1211 (1695), lichess.org, 2021.

6.Bf6 Qf6–/+ (6...gf6?! 7.cd5 cd5 8.a3=) 7.cd5?? (better 7.Nc3 Bb4 8.Qb3 Bc3 9.Qc3 Qc3 10.dc3–/+) 7...Qa1–+ 8.d3 (8.Nc3 Qd1 9.Kd1 ed5–+) 8...ed5 (better 8...Bb4 9.Nbd2 Qa2 10.de6 Be6 11.Nd4–+) 9.Ng5 (9.a3 a5 10.Nd4 ab4 11.Nf5 ba3 12.Na3 Qc3 13.Ke2 Ra3–+) 9...Bb4 10.Ke2 (10.Nd2 Qa2 11.Ngf3 Qa3–+) 10...Qa2 11.Kf3 h6 12.Be2 (12.Nh3 h5 13.Kg3 Qb2–+) 12...hg5 13.g4 Be6 14.d4 a5 15.Qf1 a4 16.Qc1 Rh3 17.Kg2 Qe2 18.Qd1 Re3 (better 18...Rh2 19.Rh2 Qd1–+) 19.Qc1 Qg4 (19...Qf3 20.Kg1 Re1 21.Qe1 Be1 22.Na3 Qf2) 20.Kf1–+ Qh3 (20...Re2 21.h4 Qf3 22.Rh2 Bh3 23.Kg1 Qg4 24.Kh1 Qe4 25.Kg1 Re1 26.Qe1 Qe1) 21.Kg1 Re1 22.Qe1 Be1 23.Na3 (23.Nc3 Qf3 24.Nd1 Bh3 25.Ne3 Bf2) 23...Bg4 (23...Qf3 24.h4 Qf2) 24.Nc2 Bd2 (24...Bf3 25.Ne3 b5 26.Nd5 Qg2) 25.Ne3 (25.Ne1 Be1 26.f3 Qf3 27.h4 Qf2) 25...Be3 26.fe3 (26.fe3 Qe3 27.Kf1 Bh3) 1–0. laure – mgilbert, net–chess.com, 2020.

6.a3 c5

7.bc5 Bc5 8.cd5 Qd5 9.Nc3 Qc6?? (better is 9...Qd8+=) 10.d4 (10.Bb5 0-0 11.Bc6 Nc6+–) 10...Bd6 (10...0-0 11.dc5 Qc5+–) 11.Bb5 Qb5 (11...0-0 12.Bc6 Nc6 13.Nh4+–) 12.Nb5 Ne4 13.Nd6 (13.Nd2 Ke7+–) 13...Nd6 14.0-0 (14.d5 f6+–) 14...0-0 15.Rc1 Nc6 16.Qb3 Nd8 (16...Rfd8 17.Ne5+–) 17.a4 b6 18.Ba3 N8b7 19.Rc7 Rab8 20.Rfc1 Na5 21.Qb4 h6 22.Ra7 Nac4 23.Rc4 Nc4 24.Qc4 Rbc8 25.Rc7 e5 26.Bf8 Kf8 27.Rc8 Bc8 28.Qc8 Ke7 29.Ne5 Kf6 30.h4 h5 31.e4 g6 32.Qd8 Kg7 33.Qe7 Kh6 34.Qf7 b5 35.Qg6 1–0. Fournier,Frederic (1955) – RODRIGO77 (1635), Active (5/0), 2005.

7.cd5 cb4 8.Qa4+= Nbd7 9.de6 Be6 10.ab4 Be7 11.Nc3 0-0 12.d4 (12.Nd4 Qb6 13.Ne6 Qe6+=) 12...Nb6+= 13.Qa5 Nfd5 14.Nd5 Nd5 15.Qd8 Bb4 (< 15...Bd8 16.b5+/–) 16.Nd2 (16.Ke2 Rfd8 17.e4 Nc3 18.Ke3 f5 19.Bc3 Bc3 20.ef5 Bd5= (< 20...Ba1 21.fe6 Bc3 22.Bc4+/–)) 16...Rfd8=+ 17.Bd3 a5 18.Ke2 Nc3 (18...a4 19.Ba3=+) 19.Bc3= Bc3 20.Rab1 Rdb8 21.Be4 Ra7 22.Rhc1 Bb4 (22...Bd2 23.Kd2 b5 24.Bc6=) 23.Rc7+= Bc8 24.Nc4 Ra6 (better is 24...Bg4 25.f3 Rc8 26.Rb7 Rb7 27.Bb7 Bf3 28.Kf3 Rc4+=) 25.Na3?? (better is 25.Rc8 Rc8 26.Bb7 Rc4 27.Ba6 Rc2 28.Kf3+/–) 25...Ba3–+ 26.Rc8? Rc8 27.Bb7 Rb8 28.Rb3 Ra7 29.Ra3 Rbb7 30.d5 Rd7 31.e4 f6 32.f4 Re7 33.Kd3 Kf7 34.Kd4 Rec7 35.d6 Rc2 36.e5 Ke6 37.f5 Kf5 38.g4 Ke6 39.ef6 gf6 40.Rf3 Rd2 41.Kc3 Rd6 42.h4 Rc7 43.Kb2 Rb6 44.Ka2 Rc2 45.Ka1 Rb4 46.Ra3 Rg4 (46...Rg4 47.Re3 Kd5–+) 0–1. Sarach,Michael – Hoolt,Rebekka, Bad Zwesten GER, 2006.

7.cd5 ed5 8.bc5 Bc5 9.Qb3 =.

6.Qb3 a6

7.a4 Be7 8.Nc3 0-0 9.d4 Ne4 (9...Nbd7 10.Nh4 Bg4 11.h3 dc4 12.Bc4=+) 10.Be2 (10.a5 Bd6=) 10...Nc3 (10...dc4 11.Qc4 Qd6 12.Ba3=) 11.Bc3 h6 12.0-0 Nd7 13.Rfd1 (13.a5 Bd6=) 13...Bg4 (13...dc4 14.Bc4 Nb6 15.Bd3=) 14.h3 Bf3 15.Bf3 Nf6 16.c5 Qd7 17.Rab1 Bd8 18.b5 ab5 19.ab5 Bc7 20.b6 Bb8 21.Ra1 Ra1 22.Ra1 Qe7 23.Be1 (23.Qc2 Re8+=) 23...e5 24.Qc2 ed4 25.ed4 Re8 26.Bd2 g5 (26...Ne4 27.Be4 de4 28.Ra4=) 27.Qf5 Qe6 28.Qe6 Re6 29.Ra8 Re8 30.Kf1 Bf4?? (better 30...Kg7+=) 31.Re8+- Ne8 32.Bf4 gf4 33.Bd5?? (better 33.Bg4 Kf8 34.Bd7+-) 33...cd5=+ 34.c6 (34.Ke2 Ng7=+) 34...Nd6-/+ (34...bc6?? 35.b7 f3 36.b8Q+-) 35.cb7 Nb7 36.Ke2 Kf8 (36...Nd8!?-/+) 37.Kf3 Ke7 38.Kf4 Ke6 39.Kg4 (39.g4 Nd6 40.g5 hg5 41.Kg5 Ne4 42.Kf4 Kd6=+ (42...Nf2?? 43.b7 Nh3 44.Ke3+-)) 39...Kf6 (better 39...Nd8!?-/+) 40.Kh5= Kg7 (40...Kf5!? 41.Kh6 Ke4=+) 41.f4 f5 (41...Nd8 42.g4+=) 42.g4 fg4 43.hg4 (worse 43.Kg4 Kg6 44.f5 Kf6=+) 43...Nd6 44.f5 (44.g5 hg5 45.fg5 Kh7+/-) 44...Nb7 45.Kh4 (better 45.f6!? Kf6 46.Kh6+/-) 45...Kf6 46.Kh5 Kg7 47.g5 (better 47.f6!? Kf6 48.Kh6+/-) 47...hg5= 48.Kg5 Kf7 49.Kf4 Kf6 50.Kg4 Nd6 Attacking the isolated pawn on f5 51.Kf4 Nb7 (51...Nf5?? 52.b7 Nd4 53.b8Q Ne6 54.Kg4+-) 52.Ke3?? (better 52.Kg4=) 52...Kf5 53.Kd3 (53.Kf3 Nd6 54.Ke3 Nc4 55.Ke2 Nb6-+) 53...Kf4 54.Kc3 Ke4 55.Kb4 Kd4 56.Kb5 Ke5 57.Kc6 Nd6 58.Kc5 d4 59.Kb4 Ke4 (better 59...d3 60.b7 Nb7 61.Kc3-+) 60.Kc5 Ke5 61.Kb4 d3 62.Kc3 Ke4 63.Kb4 Ke3 (63...d2 64.Kb3 d1Q 65.Kb4 Kd4 66.b7 Qb1 67.Ka3 Kc4 68.b8Q Qa1) 64.Kc5 Nb7 65.Kc6 Na5 66.Kb5 d2 67.Ka5 d1Q 68.b7 Qb1 (better 68...Qd6 69.Kb5-+) 69.Ka6 Qa2 70.Kb6 Qb3 71.Kc7 Qc4 72.Kd8 Qd5 73.Kc7 Qc5 74.Kd8 Qd6 75.Kc8 Qc6 76.Kb8 Qb6 (76...Kd4 77.Ka7 Qc5 78.Ka8 Qa5 79.Kb8 Kd5 80.Kc8 Qc5 81.Kd7 Qd6 82.Kc8 Qc6 83.Kb8 Kc5 84.Ka7 Qa4 85.Kb8 Kb6 86.Kc8 Qe8) 77.Ka8 (77.Kc8 Qe6 78.Kd8 Qf6 79.Kc7 Qe5 80.Kc8 Qc3 81.Kd7 Qd4 82.Kc8 Qh8 83.Kc7 Qg7 84.Kc8 Qg4 85.Kc7 Qf4 86.Kc8 Qf5 87.Kc7 Qc2 88.Kd8 Qh2=+) 77...Qa6 (77...Qa5 78.Kb8-+) 78.Kb8 Kd4 79.Kc8 (79.Kc8 Qc6 80.Kd8 Qb7 81.Ke8 Ke5 82.Kd8 Ke6 83.Ke8 Qe7). upep (2100) - rymrym2929 (1975), Rated Blitz game, lichess.org, 2014.

7.Nc3 Be7 8.cd5 ed5 9.Be2 Nbd7 10.0-0 0-0 11.h3 h6 12.Rac1 Re8 13.a4 White intends b5 (13.Na4 Rb8=) 13...Bd6 14.d4 Qe7 15.b5 ab5 16.ab5 Ne4 17.Ra1 Rab8 (17...Ra1!? 18.Ba1 Ng5=+) 18.Ra7= Qd8 19.Rfa1 Qb6 20.Ba3?? (20.Ne4 Be4 21.Nd2 Bf5+=) 20...Ba3 (better 20...Qa7 21.Ne4 Be4-+ (worse 21...Re4 22.Qc3 Ra8 23.Bb2-+)) 21.R1a3+= Bg6 22.bc6 Qb3 23.Rb3 bc6 24.Rb8 Nb8 25.Rc7?? (better 25.Ne4 Be4 26.Ne5+/-) 25...Nc3-+ 26.Bf1 Nb5 (26...f6 27.g4-+) 27.Rb7 (27.Bb5 cb5 28.Rb7 Be4-+) 27...Nd6 28.Rc7 Nc4 29.g4 Be4 30.Bc4 (30.Kg2 f5 31.gf5 Bf5-+) 30...dc4 (30...Bf3?! 31.Bd3-+) 31.Ne5 (31.Ne1 c3 32.Ra7-+) 31…c3 (31...c3 32.Ra7 Re7-+) 0-1. Chess__Academy (2350) - universe64 (2320), lichess.org, 2020.

6.Qb3 Qb6

7.a3 Nbd7 8.Bf6 Nf6 9.d4 a5 (9...dc4 10.Bc4 a5 11.Nh4 Bb1 12.Rb1 ab4 13.0-0=+) 10.c5= Qc7 11.b5 Be7 (11...a4 12.Qb4 b6 13.Nc3=) 12.a4 (12.b6 Qd8+=) 12...Ne4 (12...b6 13.cb6 Qb6 14.Nbd2=+) 13.Nbd2= Bf6 (13...b6 14.Ne4 Be4 15.cb6 Qb6 16.Nd2=+) 14.Ne4 de4 15.Nd2 e5 16.d5 cd5 17.Qd5 Rd8 18.Qb3 (18.Qc4 Be7 19.Rc1 0-0=) 18...0-0 (18...Qc5 19.Bc4 0-0 20.Rc1-/+) 19.Nc4 (19.Rc1!?=) 19...Be6 20.Qa3 (20.Qc3!? Qc5 21.Rc1-+) 20...Be7-+ 21.Nd6?? (21.b6 Qc5 22.Qc5 Bc5 23.Rb1 Bb4 24.Rb4 ab4 25.Nd2-+) 21...Rd6 (21...Bd6?! 22.cd6 Rd6 23.Be2-+) 22.cd6 Bd6 23.Qc1 (23.Qd6 Qd6 24.Be2 Qb4 25.Kf1-+) 23...Bb4 24.Kd1 (24.Qd2 Bd2 25.Kd2 Qd6 26.Ke1 Qb4 27.Ke2 Bc4 28.Kd1 Bb3 29.Ke2 Rd8 30.Rd1 Bd1) 24...Bb3 25.Ke2 Qd6 (25...Rd8 26.f3 Qc1 27.fe4 Bd1 28.Kf2 Be1 29.Ke1 Qd2) 26.f3-+ Rd8 27.Kf2 Qb6 28.Be2 Bd2 29.Qa3 Qe3 (29...Be3 30.Kf1 Qd4 31.f4 ef4 32.h3-+) 30.Kf1 ef3 31.gf3 e4 (better 31...Bb4 32.Qc1 Rd2 33.Qd2 Qd2-+) 32.Qe7-/+ Rf8 (32...Qd4 33.Kg2 ef3 34.Bf3 Bb4-+ (34...Ba4?? 35.Ra4 Qd6 36.Qd6 Rd6 37.Bb7+-)) 33.Qe4 Qh6 (better 33...Qe4 34.fe4 f5=+) 34.Qg4? (better 34.Rb1 Be6 35.h4=+ (35.Qb7?? Bh3 36.Kf2 Qh4 37.Kg1 Be3)) 34...Be6-+ 35.Qg2 (35.Qe4 Re8 36.Kf2-+ (36.Qb7?? Bh3 37.Kf2 Qh4 38.Kg1 Be3)) 35...Qe3 (better 35...Bh3 36.Rg1 Re8-+) 36.Rg1-/+ Qf2 (36...Qf2 37.Kf2 g6+-) 0-1. Chess__Academy (2430) - universe64 (2420), lichess.org, 2021.

7.c5 Qd8 8.Bf6 Qf6 9.d4 Nd7 10.Nbd2 e5 11.Be2 (11.de5 Ne5 12.Ne5 Qe5=) 11...e4=+ 12.Ng1 h5 (12...Be7 13.f3=+) 13.h4 a6 14.Nh3 (14.Qd1 Qg6 15.g3 b6=) 14...Bh3 (14...Qh4!? 15.a4 Be7-/+) 15.Rh3= Be7 16.a4 White prepares the advance b5 16...g6 17.Ra3 0-0 (better 17...b6=+) 18.b5 (18.g4 Qe6 19.Rh2 hg4=) 18...ab5 (better 18...b6!? 19.Bh5 bc5-+) 19.ab5= Rfb8 20.b6 (20.Ra4 Kh7=) 20...Ra3 (20...Nb6 21.g4 Ra3 22.Qa3=) 21.Qa3=+ Nb6 22.Qa7 (22.cb6 Ba3 Pinning (22...Ba3 Deflection)) 22...Nd7-/+ 23.Nb3 (23.g4 Qe6-/+) 23...Bd8 (23...Qe6 24.Qa2-+) 24.Rg3 (24.g4!?-/+) 24...Qh4-+ 25.Kd2? (better 25.Rh3 Qe7 26.Kd1-+) 25...Bc7 26.Rh3 Qf6 (better 26...Qf2 27.Rh1 Qg2-+) 27.Ke1 Kg7 28.Na5 Ba5 29.Qa5 Qd8 30.Qa7?? (30.Qd8 Rd8 31.Rg3 Kf6-+) 30...Qc7 (better 30...Ra8 31.Qa8 Qa8-+) 31.Qb7?? (better 31.f3-/+) 31…Rb7 (31...Rb7 32.f3 Qa5 33.Kf2 Rb1-+; 31...Qa5 32.Kd1 Rb7 33.Bb5 Qa1 34.Kd2 Qa2 35.Kd1 Rb5 36.Rh5 Rb1) 0-1. Chess__Academy (2400) - universe64 (2345), lichess.org, 2020.

6.Qb3 dc4

7.Bc4 c5 8.b5 Bd6 9.d3 a6? (better is 9...Nbd7+=) 10.e4+– Bg4 11.e5 Bf3 12.gf3 (12.ed6?! Bd5 13.Bf6 Qf6=; 12.ef6?! Bg2 13.Rg1 ab5 14.Be6 gf6 15.Bf7 Kf8 16.Rg2 c4 17.Qb5 Qe7 18.Kf1 Qf7+–) 12...Be7 13.ef6 Bf6 14.Nc3 0-0 15.Ne4 ab5? (15...Bd4 16.Bd4 Qd4+–) 16.Nf6 gf6 17.Rg1 Kh8 18.Qb5 b6 19.Qb6! Nd7 (19...Qb6 20.Bf6 Mate attack) 20.Qd8 Rad8 (20...Rfd8 21.f4+–) 21.a4 Ne5 22.Ke2 Rb8 23.Bc3 h6 (23...h5 24.f4 Nc4 25.Bf6 Kh7 26.dc4+–) 24.Bb5 (better is 24.f4 Ng6 25.Bf6 Kh7+–) 24...Kh7 25.h4 Rfd8 (25...h5 26.Rab1+–) 26.h5 Rb6 (26...c4 27.Be5 fe5 28.dc4+–) 27.Ba5 (27.Ba5 Nd7 28.Rg4+–) 1–0. Sixty4 – Superulf, playchess.de, 2005.

7.Bc4 Nbd7 8.0-0 Nb6 9.Be2 (9.d3 Nc4 10.dc4 Qe7=) 9...Be7 (9...Nbd5 10.a3=+) 10.d4 0-0 11.Nbd2 (11.Nc3 Nbd5=) 11...Ne4 (11...Nbd5 12.a3=+) 12.b5 (12.Ne4 Be4 13.Rfc1 Nd5=) 12...Nd5 (12...Nd2 13.Nd2 cb5 14.e4=) 13.Ne4= Be4 14.Nd2 Bg6 15.Ba3 Ba3 16.Qa3 cb5 17.Bb5 a6 18.Be2 b5 19.Bf3 b4 20.Qb2 Rb8 21.Bd5 Qd5 22.Rae1? (better is 22.Rfc1=) ½–½. Gruber,W – Schlenga,Klaus, NWL–II, 1992.

6.Qb3 h6

7.Be2 Nbd7 8.0-0 Bd6 9.Nc3 0-0 10.Rfc1 Re8 11.d4 Ne4 12.cd5 ed5 13.b5 Ndf6 14.a4 Ng4 15.Ne4 de4 (worse 15...Be4 16.h3 Nf6 17.bc6 bc6 18.Rc6+/-) 16.Ne5 Be5 17.de5 cb5 18.Bb5?? (18.Qb5 a6 19.Qc5= (19.Qb7? Rb8 20.Qc6 Rb2 21.Bg4 Bg4-+)) 18...Qh4-+ 19.h3 (19.Be8 Re8 20.e6 Re6 21.Rc2 Qh2 22.Kf1 Qh1 23.Ke2 Qg2 24.Bd4 Nf2 25.Rc8 Kh7 26.Kd2-+) 19...Qf2 20.Kh1 Ne3 21.Rg1 Be6 (better 21...Bh3 22.gh3 Qf3 23.Kh2 Ng4 24.Rg4 Qb3-+) 22.Qb4 Red8 23.Bd4 a5?? (23...a6 24.Rae1 ab5 25.Be3-+) 24.Qb2? (better 24.Qc5 Rd4! 25.Qd4-/+) 24...Qb2-+ 25.Bb2 Nc2 26.Rac1 Nd4 27.Rge1 (27.Bd4 Rd4 28.Kh2 Rd5-+) 27...Nf5 (better 27...Nb5 28.ab5 a4-+) 28.Kh2 Rd2 29.Bc3 Ra2 30.Re4 Bd5 (30...Rc8 31.Rg4-+) 31.Rg4? (better 31.Re2!?=+) 31...h5 32.Rg5 Ne3 (better 32...g6 33.Ra1 Rc2-+) 33.e6= Rg2?? (better 33...fe6 34.Rg7 Kf8=) 34.Rg2+- Ng2? (34...Bg2 35.Re1 Nd5+-) 35.e7 Bc6 (35...Nh4 36.e8Q Re8 37.Be8 b6+-) 36.Bc6 bc6 (36...Ne3 37.Ba5! Nf5 38.e8R Re8 39.Be8+-) 37.Rd1 Re8 38.Rd8 (38.Rd8 f6 39.Re8 Kf7 40.Rg8 Ke7 41.Rg7 Ke6 42.Kg2+-) 1-0. pacalmisu (2180) - Aspomcoin (2290), Rated Blitz game, lichess.org, 2015.

7.Be2 Nbd7 8.0-0 Be7 9.cd5 cd5 10.Ne5 0-0 11.Nd7 Nd7 12.Bd3 Bd3 13.Qd3 Qb6 (13...Bb4? 14.Qd4 f6 15.Qb4+–) 14.a3 a5 15.Bd4 Qc6 16.b5 Qd6 17.f4 f6 18.Ra2 e5 19.Ba1 Nc5 20.Qc2 Rac8 21.d4 Ne4 22.Qd3 ef4 23.ef4 f5 24.Bc3 Qc7 25.Bd2 Bf6 26.g3 (26.Rd1 Rfe8–/+) 26...Qb6 27.Be3 Rc4 (Black gets in control) 28.Rd1 Qb5 29.Rc2 (29.Nd2 Nd2 30.Rad2 Qc6–+) 29...Qc6 30.Rc4 dc4 31.d5 cd3 32.dc6 bc6 33.Rd3 a4 34.Nd2 Nd2 35.Rd2 Rd8 36.Rc2 Rd3 37.Bc5 Rc3 38.Rc3 Bc3 39.Kf2 Kf7 40.Ke3 Ke6 41.Kd3 Kd5 42.Bf8 Bd4 43.h3 0–1. Mandak,P – Boukal,P, CZE League, 1999.

6.b5 a6

7.Nd4 Bb1 8.Qb1 ab5 9.cb5 c5 =+.

7.cd5 Nd5 8.bc6 Nc6 9.d3 (9.Nc3 Rc8=+) 9...Nf6 (9...Qb6 10.Qb3 Qb3 11.ab3=+) 10.Be2 Bb4 11.Nc3 0-0 12.0-0 Bd6 (12...Rc8 13.Nh4=) 13.Rc1 Qc7 14.Qb3 Ng4 (14...Rfc8 15.e4 Bg4 16.h3 Bf3 17.Bf3=+) 15.h3 Nh2 16.Rfd1 Nf3 17.Bf3 Na5 18.Qa4 b5 19.Qh4 Be7 (better is 19...Qd8 20.Qd8 Rad8+=) 20.Nd5?? (20.Qh5 Nc6+/–) 20...Qh2?? (20...ed5 21.Qd4 Bf6 22.Qf6 gf6 23.Rc7 Rac8+–) 21.Kh2+= Bh4 22.Nc7 Rad8 23.Ba3 Bf2 24.Bf8 Kf8 25.e4 Be3 26.ef5+– Bc1 27.Rc1 Rd3 28.fe6 fe6 29.Ne6 1–0. Woschkat,Karl_Heinz – Waibel,Ulrich, casual, 1995.

6.b5 Bb4

7.a3 Ba5 8.Be2 Nbd7 9.bc6 bc6 10.0-0 0-0 11.Nd4 Ne5?? (better is 11...Qb6 12.Bc3 Bc3 13.Nc3 Bg6=) 12.Nf5+– ef5?! (12...Nc4 13.Bc4 dc4+–) 13.Be5 dc4 14.Bc4 Ng4 15.Bf4 g5 16.Bg3 h5 17.h3 Nf6 18.Qc2 Ne4 19.d3 (19.d3 Ng3 20.fg3+–) 1–0. Dubleumortier,Alain (1745) – Barros Uriburu,Nicolas, IECG, 2006.

7.a4 0-0 8.h3 Nbd7 (8...a6 9.cd5 Nd5 10.Nc3=+) 9.Nh4 (9.bc6 bc6 10.Nd4 Bd6=) 9...Bg6 (9...Be4!?–/+) 10.Ng6= fg6 11.cd5 ed5 12.Be2 Ne4 13.0-0 Qe7 14.bc6 bc6 15.Nc3 (15.Qc2 c5=) 15...Bc3 16.Bc3 Ne5 (16...Qh4 17.Bf3=) 17.Bb2 Qh4? Will f2 fall? (better 17...Nc4 18.Bc4 dc4+=) 18.Be5+– (18.Be5 Rf2 19.Qc2+–) 1–0. Abdullaevich (1840) – ausyigita (1825), lichess.org, 2020.

7.Qb3 Bd6 8.d4 Nbd7 9.Nc3 0-0 10.a4 Ne4 11.Ne4 Be4 12.Nd2 Nf6 13.f3 Bg6 14.h4 (14.Be2 c5=) 14...Nh5 15.g4 Ng3 16.Rh3 Nf1 17.Kf1 h5 (17...f5!? 18.g5 f4=+) 18.c5 Bc7 19.Kf2 (19.gh5!? Bf5 20.Rh1=+) 19...hg4-/+ 20.fg4 Qf6 21.Ke2 Be4 (21...Bh7=+) 22.Rf1 (better 22.Ne4 de4 23.Rg1+=) 22...Qg6-/+ 23.Rg1 White plans g5 23...a6 (23...Bc2!? 24.h5 Bb3 25.hg6 Ba4 26.bc6 bc6 27.gf7 Kf7-/+) 24.b6 (24.h5 Qh7 25.Ne4 Qe4+/-) 24...Bd8 (24...Bc2 25.h5 Qh7= (25...Bb3? 26.hg6 Ba4 27.bc7+-)) 25.g5 (better 25.h5!? Qh7 26.Ne4 Qe4 27.g5+/-) 25...Qh5 (25...Bc2 26.h5 Qg5 27.Rg5 Bb3 28.Rg7 Kg7 29.Nb3=+) 26.Ke1= f6?? (better 26...Bf5 27.Rh2 Bg4=) 27.Ne4+- de4 28.Qe6 Kh8 29.gf6 (better 29.Qd7!? Qf7 30.Qf7 Rf7+-) 29...Bf6 30.Rg5 Do you see the mate threat? 30...Rae8?? (better 30...Qe8 31.Qe8 Rae8+-) 31.Rh5 1-0. zembelek (2170) - walkingparadox (1955), Rated Blitz game, lichess.org, 2014.

7.Qb3 Be7 8.bc6 Nc6 9.cd5 Qd5 (9...Nd5 10.Bg7 (10.Qb7 Ndb4 11.Bb5 0-0 12.Bc6 Nc2 13.Ke2 Rb8–+) 10...Rg8 11.Bb2=) 10.Bc4 (10.Qb7 Rb8 11.Qa6 Rb2–+) 10...Qd7 11.Ne5 Ne5 12.Be5 0-0 13.d4 a6 14.0-0 b5 15.Bd3 Bd3 16.Qd3 Ng4 17.Bg3 ½–½. Steinutz (2015) – byron_de (2115), ChessWorld.net, 2003.

7.Be2 0-0 8.a4 (8.Qa4 Qe7+=) 8...a6 9.Qb3 Qe7 10.0-0 dc4 11.Bc4 ab5 12.ab5 Ra1 13.Ba1 cb5 14.Bb5 Rc8 (14...Bd6 15.d3 e5 16.Nbd2=) 15.Nc3 (15.Bf6 gf6 16.d4 Bc2+=) 15...Nc6 16.h3 h6 17.Rc1 Ba3 18.Bb2 Bb2 19.Qb2 Qb4 20.Na4 Qb2 21.Nb2 Na7 22.Rc8 Nc8 23.Nd4 Nd6 24.Be2 Bg6 25.f3 e5 26.Nb5 Nfe8 27.Nc3 f6 28.Nd3 (28.d4 Nc7=) 28...Bf7 (28...Nc7 29.Nc5=) 29.f4 ef4 30.Nf4 Nc4 (30...Nc7 31.Bf3=) 31.Bc4 Bc4 32.d3 Bf7 33.Kf2 Nc7 34.Ke2?? (better is 34.d4+=) 34...g5–+ 35.Kd2 (35.Kf3 gf4 36.Kf4 b5–+) 35...gf4 36.ef4 Nd5 37.Ne4 (37.g3–+) 37...Nf4 38.Nf6 Kg7 39.Nd7 (39.g3 Kf6 40.gf4 Kf5–+) 39...Ng2 40.Nc5 (40.Kc3 Nf4–+) 40...Bd5 41.Kc3 0–1. Sage,T (2195) – Karklins,Eric (2205), Midwest Masters–B, 1984. (=1.c4 c6 2.b4 d5 3.e3 Bf5 4.Bb2 e6 5.Nf3 Nf6 6.b5 Bb4)

6.Nc3 Nbd7

7.c5 Be7 8.d4 a5 9.a3 ab4 10.ab4 0-0 11.Bd3 Ra1 12.Ba1 Bd3 13.Qd3 Qc7 14.0-0 e5 15.de5 Ng4? (15...Ne5 16.Ne5 Qe5 17.Nb5=) 16.Ne2 (better is 16.Qd4 f5 17.e6+/–) 16...Nde5 17.Ne5 Ne5 18.Qc3 Bf6 ½–½. Rush,Bradley – Raines,David, ZL–2011–0-01051, 2011.

7.Be2 dc4 8.0-0 (8.a3 Bd3–/+) 8...Nb6 (8...Bb4 9.Bc4 Nb6 10.Be2–/+) 9.Nd4 (9.b5 cb5 10.Nb5 Qd7+=) 9...Bd3 10.Re1 (better is 10.Bd3!? cd3 11.Qb3–/+) 10...Bb4–+ 11.a3 (11.a4 e5 12.Bd3 cd3–+ (12...ed4?! 13.ed4 Kf8 14.Be2–/+)) 11...Be7 12.Nf3 0-0 13.Ne5 Qd6 14.Bd3 cd3 15.Ng4 (15.f4 Rad8–+) 15...Ng4 16.Qg4 f5 17.Qd4 (17.Qd1 Nc4–+) 17...Qd4 18.ed4 Nc4 19.Re6 Rfe8 (better is 19...Bg5 20.Na4 Rfe8 21.Re8 Re8–+) 20.Nd1 (20.Rae1 Kf7 21.Nd1–+) 20...Ba3 21.Re8 (21.Ba3 Re6 22.Ne3 Nd2 23.Nf5 Nc4–+) 21...Re8 22.Kf1 (22.g3 Re1 23.Kg2 Rd1 24.Rd1 Bb2 25.d5 cd5 26.Re1–+) 22...Nd2 0–1. gtate (1810) – fhoffmeister, net–chess.com, 2002.

6.c5 Bg4

7.Be2 Bf3 8.gf3 g6 9.f4 Bg7 10.0-0 0-0 11.Nc3 Ne4 12.Ne4 Bb2 13.Rb1 de4 14.Rb2 Qf6 (14...Nd7 15.f3 ef3 16.Rf3+=) 15.Qc2+= Nd7 16.f3 ef3 17.Bf3 e5 18.b5 ef4 19.bc6 bc6 20.Bg2 Nc5 21.Rf4 Qg7 (21...Qe5 22.Rc4 (< 22.Bc6 Rac8 23.Bb5 Na4 24.Ba4 Rc2 25.Rc2 f5–/+) 22...Nd3 23.Rb1=) 22.Rc4 (22.Rb1 Ne6 23.Rc4 Rab8 24.Bc6 Rb1 25.Qb1 Qe5=) 22...Nd3= 23.Rb1 Rad8 (23...Ne5 A) 24.Bc6? Nc4 (24...Nc6?! 25.Rc6 Qe5 26.Rc7=) 25.Qc4 Rac8–+; B) 24.Rf4=) 24.Rc6 Rd7 25.Rc7 Rc7 26.Qc7 Qf6 27.Rf1 (27...Qb6 28.Qd7+=; < 27.Qa7 Qf2 28.Kh1 Qd2=) +=. Mueller,Klaus – De Lange,Daan, corr ICCF EU–M–283, 1973.

7.h3= Bh5 8.Bd3 Nbd7 9.g4 Bg6 10.Bg6 hg6 11.Ne5 Ne5 12.Be5 g5 13.Nc3 Be7 14.a4 (14.d4 Qd7=) 14...0-0 (better is 14...Nd7!? 15.Bg3 a5–/+) 15.a5 Nd7 16.Bg3 Bf6 17.d4 e5 18.Qd2 ed4 19.ed4 Re8 20.Kd1 Nf8 21.f4 (21.Ne2 Ne6=) 21...gf4 22.Bf4 (worse is 22.Qf4 Ne6 23.Qd2 Nd4–/+) 22...Ne6 23.Be3 Bh4 24.Kc2 (24.Rf1 Qe7 25.Ra3 Rad8=) 24...Rb8 25.Na4 (25.Rhf1 Qe7+=) 25...Ng5 (25...Qe7 26.Raf1–/+) 26.Qd3 Ne4 27.Rhf1 Qe7 28.Rf5 Nc5 29.Nc5 Qe3 30.Qe3 Re3 31.Raf1 Re7 32.Rh5 (32.Re5 Re5 33.de5 b6–/+) 32...Bg3 33.Rf3 Bd6 34.Nd3 (34.Rhf5 Rbe8–/+) 34...Re2 (34...g6 35.Re5 Be5 36.Ne5–+) 35.Kc3 Rbe8 (35...g6 36.Rg5–+) 36.h4 (36.Rhf5 R8e7–/+) 36...R2e3 37.Re3 Re3 38.Kd2 (38.Rf5 Bb4! 39.Kb4 Rd3–+) 38…Re4 0–1. Shadow_cup – Dawgy333, playchess.de, 2006. (=1.e3 d5 2.c4 c6 3.b4 Bf5 4.Bb2 e6 5.c5 Nf6 6.Nf3 Bg4)

6.c5 h6

7.d4 Be7 8.Bd3 Ne4 (8...Bd3 9.Qd3 b6 10.0-0=) 9.Be4 (9.0-0 0-0+=) 9...Be4 10.0-0 Nd7 11.Nc3 Bh7 12.a4 White prepares b5 12...a6 13.b5 ab5 14.ab5 Ra1 15.Qa1 cb5 16.Nb5? (better is 16.Ba3!?=) 16...Bd3–/+ 17.Nd6 (17.Na7 Bf1 18.Qf1 0-0–/+) 17...Bd6–+ 18.cd6 Bf1 19.Kf1 (19.Qf1 Qb6 20.Qc1 0-0–+) 19...0-0 20.Qa3 Qb6 21.Ne5 Rc8 22.Nd7 Qb5 23.Ke1 (23.Kg1 Qd7 24.Bc3 b6–+) 23...Qd7 24.Bc3 f6 25.Bb4 Kf7 (25...Rc2 26.Qa8 Kh7 27.Qa3–+) 26.Bc5 Rc6 27.Qa7?? (27.Qd3–+) 27...Ra6 28.Qb8 Qb5 29.Qc7 (29.Ba3 Ra3 30.Qc7 Kg6 31.Qc2 f5–+) 29...Kg6 30.Bb6 (30.Ba3 Ra3 31.Qc2 f5 32.d7 Ra1 33.Kd2–+) 30...Ra2 0–1. rayfranke (2485) – iozeph (2655), net–chess.com, 2016.

7.Nd4 Bg6 =.

7.Be2 a5 8.a3 =.

7.Be2 Be7 8.0-0 0-0 9.Nc3 Ne4 (9...a5 10.a3=) 10.Ne4 (10.Nd4 Nc3 11.Bc3 Be4+=) 10...Be4 (10...de4 11.Nd4=) 11.Ne5 Nd7 12.f4 Ne5 13.Be5 Bf6 (13...b6 14.d3 Bf5 15.Qc2=) 14.Bf6 (14.d3 Bf5=) 14...Qf6 15.d4 Qg6 16.Bf3 Bf3 17.Rf3 f5 (17...Rfb8 18.Rg3 Qf6 19.Qg4=) 18.a4 Rf6 (18...Rab8 19.Rg3 Qf6 20.Qh5+=) 19.Rf2 a6 20.Rb2 Qe8 21.Qb1 Qd7 22.b5 Rf7 (22...ab5 23.ab5 Rff8 24.Rba2 Ra2 25.Ra2+/–) 23.bc6+/– Qc6 24.Rb6 Qc8 25.Qc2 Rc7 26.Rab1 Ra7 27.a5 Rc6 28.R1b4 Kf7 29.Qb2 Rb6 30.Rb6 Qc7 31.Qb3 Qe7 32.Rd6 (32.Qd3 Kg8+/–) 32...Ra8 33.Qa4 Kf6 (33...Rd8 34.Rb6+/–) 34.Qd7 (34.Rb6!?+/–) 34...Re8 35.Qe7 Re7 36.Rb6 Rc7 37.h4 h5 38.Kf2 g6 39.g3 Ke7 40.Kf3 Kf6 41.Rd6 Ke7 42.Kg2 (42.Ke2 Rc6 43.Rc6 bc6+=) 42...Rd7 (42...Rc6!? 43.Rc6 bc6=) 43.Rb6+= Rc7 44.Kf3 (44.Kf1 Kf6+=) 44...Kf6 45.Ke2 Ke7 46.Kd3 Kf6 47.Kc3 Ke7 48.Kb4 Kf6 (48...Kd7!?+=) 49.c6+/– Rc6? (better is 49...bc6 50.Ra6 Ke7+/–) 50.Rc6+= (50.Rb7?! Rc4 51.Kb3 Rc1=) 50...bc6 51.Kc5 (51...e5 52.fe5 Ke6 53.Kc6+–) 1–0. Plock,Joerg – Wolf,Matthias, District Class I Magdeburg, 1991.

6.cd5 Nd5

7.a3 a5 8.d3 (8.b5 Nf6=) 8...Bg4 9.e4 Nf6 10.ba5 Qa5 (10...Ra5 11.Nbd2=) 11.Bc3 Qd8 12.Qb3 (12.Be2 Nbd7=) 12...b6 13.Nbd2 (13.Ne5 Bh5=) 13...Nbd7 14.Be2 Nc5 (14...Bf3 15.Nf3 (< 15.Bf3 Nc5 16.Qc2 Qd3 17.Qd3 Nd3 18.Ke2 Nf4 19.Ke3 Ng6–/+) 15...Be7 16.Bb2=) 15.Qc2 Be7 16.d4 Ncd7 (16...Bf3 17.Bf3 Na4 18.Bb4=) 17.Ne5 +=.

7.a3 Nd7 8.Nc3 =.

7.a3 e6 8.Nc3 Nc3 9.dc3 Qf6 10.Qe2 Rd8 11.Rd1 =.

6.Be2 Be7

7.0-0 0-0 8.b5 dc4 9.Bc4 Bd3 10.Bd3 Qd3 11.bc6 Nc6 12.Qb3 Qb3 13.ab3 =.

7.0-0 0-0 8.b5 dc4=+ 9.bc6 Nc6–/+ 10.Bc4 (10.Na3 c3 11.dc3 Qc7–/+) 10...Rc8 (10...Bd3 11.Bd3 Qd3 12.Qb3=+) 11.Bc3 (11.d3 Bd6=+) 11...Nb4–/+ 12.Bb4 Bb4 13.Qb3 Bd6 14.Nc3 Rc4?? (14...Bg4 15.Nd4–/+) 15.Qc4=+ Bd3 16.Qb3 (16.Qd3 Bh2) 16...Bf1 17.Kf1 b6 18.a4 Bb8 (18...Qc7 19.Nb5 Qd7 20.Nd6 Qd6 21.Rc1=) 19.h3 (19.d4 Bd6=) 19...Qd3 20.Ke1 (20.Kg1 Ne4=+) 20...Rc8–/+ 21.Rb1 Ne4 22.Qb5=+ Qc2 23.Ne4 Qe4 24.a5 h6 25.ab6 ab6= 26.Qb6 Qg6 27.Qb7+= Rd8 28.Nd4 Bd6 29.Rc1 Rb8 30.Rc8+/– Rc8 31.Qc8 Bf8 32.Qc6 Qb1 33.Ke2 Qg6 34.f4 Qh5+/– 35.Qf3 Qc5 36.g4 Qc4 37.Ke1 Bb4 38.Qa8 Kh7 39.Qc6 Bc5 40.Qe4 Kg8 41.Qc2 Qd5 ½–½. Moehring,Nicholas – Wolf,G, SEM–ch Gr–D Dudweiler, 1995.

7.0-0 0-0 8.b5 Ne4 9.Nc3 (9.d3 Nd6=) 9...Bf6 10.Qc1 (10.d4 cb5 11.cb5 Qd6=) 10...a6 11.a4 ab5 12.ab5 (Opening the a–file gets White a lot of play) 12...Ra1 13.Ba1 Qa5 (13...Bc3 14.Bc3 dc4 15.bc6 Nc6 16.Bc4 Nc3 17.Qc3=) 14.Ne4+= Ba1 (14...de4 15.Bf6 ef3 16.Bc3+=) 15.Qa1 Qa1 16.Ra1 Be4 17.Ng5 cb5 18.Ne4 (18.cb5 b6+/–) 18...de4+= 19.cb5 Nd7 20.Bd1 (20.Rc1 b6+=) 20...Rc8 21.Kf1 Rc5 (21...f5 22.f3=) 22.Be2 g6 23.g3 Nb6 (23...Rd5 24.Ra7 b6 25.Ke1=) 24.d4 Rc2 25.Rb1 f5 26.Ke1 Nd5 27.Kd1?? (27.Bd1 Ra2=) 27...Rc8 (better is 27...Re2 28.Ke2 Nc3 29.Kf1 Nb1–+) 28.Ke1 Kf8 29.Kd2 Ke8 30.Rc1 Rc1 31.Kc1 Nc3 32.Bc4 Ke7 33.Kc2 Na4 34.Kb3 Nb6 35.Kb4 Kd6 36.Kc3 Nd5 37.Kb3 b6 38.Kc2 g5 39.Kb3 (39.Kd2 e5=) 39...f4=+ 40.Bd5 ed5 41.Kc3 fg3 42.fg3 h5 43.Kd2 ½–½. valpa – talewisx, playchess.de, 2002.

7.0-0 0-0 8.c5!? =.

7.0-0 Bb4 8.Nd4 Bg6 9.a3 –/+.

7.0-0 dc4 8.a3 =+.

7.Bf6 Bf6 8.d4 Na6 =.

6.Nh4 Bg4

7.Qa4 dc4–/+ 8.b5 (8.Bc4? b5 9.Bb5 cb5 10.Qb5 Nbd7–+) 8...Nd5 9.bc6 Nc6 10.Nf3 Nb6 11.Qb5 (11.Qd1 Nb4–+) 11...a6 12.Qg5 Bf3 13.Qd8 Rd8 14.gf3 Na4 15.Ba3 Ba3 16.Na3 b5 17.0-0-0?! (17.Rg1–+) 17...Nb4 18.Kb1 (18.d4–+) 18...Nc3!! 19.dc3 (19.Kc1 Nba2 20.Kc2 Nd1 21.Kd1 e5–+) 19...Rd1 20.Kb2 Nd3 21.Bd3 Rh1 22.Be4 Rh2 23.Bb7 Rf2 24.Kb1 h5 (24...0-0!? 25.Nc2 Rd8 26.Nd4–+) 25.Ba6 h4 26.Bb5 Ke7 27.Nc4 h3 28.f4 (28.Be8 h2 29.Nd2 Rd2 30.Kc1 Re2 31.Ba4 h1Q 32.Bd1 Rd8 33.a4 Qd1) 28…Rb8 0–1. Von Bassewitz,Ingo (1675) – Michalowski,Peter (2035), Friedrichroda op, 2008. (=1.Nf3 Nf6 2.b4 c6 3.e3 d5 4.Bb2 Bf5 5.c4 e6)

7.f3!? Bh5 8.a3=+.

7.Nf3 Bb4–/+ 8.cd5 ed5 (8...cd5?! 9.Qa4 Nc6 10.Ne5=+) 9.Be2 0-0 10.0-0 Bd6 11.h3 Bh5 12.d3 Nbd7 13.Nbd2 Qb6 14.Rb1 Qc7 15.d4 (15.Qc2 Rfe8–/+) 15...Bg6 16.Qb3? (better 16.Rc1!?–/+) 16...Bb1–+ 17.Nb1 b5 (17...Rfe8 18.Ba3–+) 18.a3 (18.Rc1 a6–+) 18...a5 19.Nbd2 a4 20.Qc2 Nb6 (20...b4 21.ab4 Bb4 22.Ra1–+) 21.e4 (21.Ne5 Nc4–+) 21...de4 22.Ne4 Ne4 23.Qe4 Rfe8 24.Qc2 Qe7 (better 24...b4–+) 25.Qc6?? (25.Re1 Qe4 26.Qc3–+) 25...Qe2 (25...Ba3?! 26.Ba3 Qa3 27.Bb5–+) 26.Qb6 Rad8 (26...Re6 27.Qb7 Rb8–+ (27...Qb2?! 28.Qa8 Bf8 29.Qb8=)) 27.Re1 (27.Rb1–+) 27...Qe1 (27...Qb2?! 28.Re8 Re8 29.Qd6–+) 28.Ne1 Re1 0–1. GuestQJCG – GuestSTFS, freechess.org, 2017.

6.a3 a5

7.b5 Bb1 8.Rb1+= Nbd7 9.bc6 bc6 10.Qa4 Qc7 11.cd5 cd5 12.Bb5 Bd6 13.Rc1 Qd8 14.Bf6 gf6 15.Nd4 Be5 (15...Rg8 16.0-0+–) 16.Nc6 Qc7 (better 16...Qc8!?+–) 17.Ke2 Bh2 (17...Qd6 18.d4 Bh2 19.Na5+–) 18.g3 (18.Nd4!? Qd6 19.Rc6 Qb8+–) 18...Bg3 19.fg3 Qg3 20.Nd4 (20.Na5 Qg2 21.Kd3 Qe4 22.Qe4 de4 23.Ke4 Ra5 24.Rc8 Ke7 25.Rh8 Rb5 26.R8h7 Rb2+–) 20...Qg2 21.Kd3 Qe4 22.Kc3 Ra7 23.Bd7 (23.Kb2 Rb7 24.Ka2 Ke7 25.Qa5 Rb5 26.Qb5 f5+–) 23...Rd7 24.Kb2 (24.Qa5?! 0-0 25.Kb2 Rb8 26.Ka2 Qd3+–) 24...Ke7 25.Nc6 Kd6 26.Qb5 e5 27.Qb6 (27.Na5?! Ke7+–; 27.Qa5?! Ke6+–) 27...Ke6 28.Nd4 (28.Qa5?! Rd6+–) 28...Ke7 29.Rhf1 ed4 (29...Qg6 30.Nf5 Qf5 31.Rf5 Rb8 32.Qb8 Rb7 33.Qb7 Kf8 34.Qc8 Kg7 35.Rg1 Kh6 36.Qf8) 30.Qf6 Ke8 (30...Kf8 31.Rc8 Qe8 32.Qh8 Ke7 33.Qe8 Kd6 34.Rf6) 31.Rc8 (31.Rc8 Rd8 32.Rd8) 1–0. Pereira – Trainee, internet, 2020.

7.b5 b6 8.Be2 (8.Nd4 Be4+=) 8...Bd6 (8...dc4 9.Bc4 Bd6 10.Nd4=) 9.d3 (9.Nd4 Be4+=) 9...0-0 10.Nh4 Bg6 11.Ng6 hg6 (11...fg6 12.Qa4 cb5 13.Qb5+=) 12.0-0 (12.Nc3 dc4 13.dc4 Qc7+=) 12...Qc7= 13.h3 Nbd7 (13...dc4 14.dc4 Bh2 15.Kh1=) 14.Nd2 (14.bc6 Qc6 15.Nc3 Rad8+–) 14...c5 15.Bf3 Nh7? (better 15...Ne5+=) 16.cd5+– e5 17.Nc4 Ng5 18.Be2 f5 19.f4! Nf7 (19...ef4 20.Nd6 Decoy) 20.e4 (20.fe5 Nfe5 21.Qb3 Nc4 22.dc4 Nf6+–) 20...ef4+– 21.Qd2 Rae8 22.Nd6 Qd6 23.Rf4 Nfe5 (23...Nf6 24.Raf1 fe4 25.Bf6 gf6 26.Rf6 Qd5 27.Rg6 Kh7+–) 24.Rf2 fe4 (24...Nf6!?+–) 25.Rf8+– (25.de4?! Rf2 26.Kf2 Qf6 27.Kg1 Qh4+–) 25...Rf8 26.de4 Nf6 27.Rf1 Ne4 (27...Re8 28.Qf4+–) 28.Rf8 Kf8 (28...Qf8 29.Qe3 Qf5+–) 29.Qf4 Nf6 30.Qe5 (30.Be5 Qd5 31.Bf6 gf6 32.Qf6 Ke8 33.Qg6 Ke7 34.Qb6 Qd4 35.Kf1 Qa1 36.Kf2 Qd4 37.Kg3 Qe5 38.Kh4 Qe2 39.Qc5 Kd7+–) 30...Qd5 (30...Qe5 31.Be5 Ke8 32.Bc4+–) 31.Qb8 Kf7 32.Bf3 (better 32.Qb6!? Qe4 33.Qc7 Ke8+–) 32...Qb3 33.Qc7 Kg8 34.Qd8 Kh7 35.Bf6 gf6 36.Qe7 (36.Qb6 Qe3 37.Kf1 Qc1 38.Kf2 Qb2 39.Kg1 Qc1 40.Bd1 Qd1 41.Kh2 Qc1 42.Qc7 Kh6+–) 36...Kh6 37.Qf8 Kh7 38.Qf6 Qb1 (38...a4 39.Qe7 (39.Qb6 Qe3 40.Kf1 Qc1 41.Kf2 Qb2 42.Be2 Qd4 43.Ke1 Qc3 44.Kd1 Qb3 45.Kd2 Qb2 46.Kd3 Qa3 47.Ke4 Qb4 48.Kd5 Qd2 49.Kc5 Qe3 50.Kc6 Qe6 51.Kb7 Qe2+–) 39...Kh6 40.Be4 Qe3 41.Kh2 Qf4 42.g3 Qd2 43.Bg2+–) 39.Kh2 c4 (39...Qf5 40.Qd6 a4+–) 40.Qf7 Kh6 41.Qf8 Kh7 42.Bd5 Qd3 (42...Qf5 43.Qg8 Kh6 44.Qh8 Kg5 45.h4 Kg4 46.Bf3 Qf3 47.gf3 Kf3 48.Qc3 Ke4 49.Qc4 Ke5 50.Qc7 Kf5 51.Qf7 Ke5 52.Qg6 a4+–) 43.Bg8 Kh8 44.Bc4 (44.Bc4 Kh7 45.Qg8 Kh6 46.Bd3 Kg5 47.Qg6 Kf4 48.Qg3) 1–0. GuestYYLH – GuestLGSK, freechess.org, 2017.

7.c5 b6 8.d4 ab4 9.ab4 Ra1 10.Ba1 b5 11.Nc3 Be7 12.Nb5 (12.Ne5!?=) 12...cb5=+ 13.Bb5 Kf8 (13...Nbd7 14.Bd3=+) 14.Qa4 g6 15.Ne5 Kg7 16.Be2 g5 17.0-0 Nfd7 18.Nd7 Qd7 19.b5 Rc8 20.Bc3 Bd8 21.Ra1 g4 22.Ba5 Ba5 23.Qa5 (White fights for the Initiative) 23...e5 24.Qc3 Qe7 25.c6 ed4 (25...f6!?=) 26.Qd4+/– Qf6 27.Rd1 Qd4 28.Rd4 (28.ed4?! Nc6 29.bc6 Rc6=) 28...h5 (28...Nc6 29.bc6 Rc6 30.Bg4 Rc1 31.Rd1 Rd1 32.Bd1+/–) 29.Rd5 Kf6 30.f3 Ke6 31.Bc4 Kf6 32.e4 Be6 33.Rc5 Bc4 34.Rc4 gf3 35.gf3 Ke7 36.Rc5 Nd7 (36...h4 37.Kg2+–) 37.Rh5 Nb6 38.Rh6 (better is 38.Kf2!? Na4+–) 38...Nc4 (38...Na8 39.e5 Rb8 40.e6 fe6 41.Rh7 Kd6 42.Rb7=) 39.Kf2 Ne5? (better is 39...Nd6!? 40.Rh5 Rb8+–) 40.Ke3 Nc4 (40...Ra8 41.c7 f6 42.Kd4 Nf3 43.Kd5+–) 41.Kd4 Nd6 (41...Nb6 42.h4+–) 42.Kc5 Nb7 43.Kb6 Nd6 (43...Nd8 44.Rh8 Rb8 45.Kc7 Rb5 46.Rd8+–) 44.e5 Nf5 45.Kb7 Rg8 46.Rf6 (46...Nd4 47.b6 Nc6 48.Rc6+–) 1–0. De Visser,Arno – Jensen,L, Copenhagen, 1981.

7.c5 Nbd7 8.Be2 (8.Nc3 Be7=) 8...ab4 9.ab4 Ra1 10.Ba1 Qa8 (10...Be7 11.Nc3=) 11.Nc3 (11.Bd4=) 11...e5 (11...Qa3!?=) 12.0-0+= Be7 (12...Qa3 13.Qa4 Qa4 14.Na4+=) 13.d3 (13.Nh4 Be6 14.f4 d4+–) 13...0-0 (13...Qa3 14.Qa4 Qa4 15.Na4+=) 14.e4+= de4 15.de4 Bg6 16.Bb2 (16.Qb3 Qa7+=) 16...Rd8 (16...b6 17.cb6 Rb8 18.Na4 Nb6 A) worse 19.Be5 Na4 (19...Ne4? 20.Bb8 Qb8 21.Nb6 Qb6 22.Qd7 Bb4 23.Ne5+–) 20.Bb8 Nc3–/+; B) 19.Nc5 Ne4 20.Ne4 Be4 21.Be5=) 17.Qb3+= White prepares b5 17...Qb8 (17...b6 18.cb6 Qb7 19.Na4 Ne4 20.Qe3+=) 18.Re1 (18.Nh4!?+=) 18...b6= (worse 18...Ne4 19.Ne4 Be4 20.Bc4+–; 18...Be4? 19.Ne4 Ne4 20.Bc4+–) 19.Bf1 (19.Nh4!?=) 19...bc5=+ 20.b5 cb5 21.Bb5 (21.Qb5 Qa7=+) 21...Qb7–/+ Can e4 get defended? 22.Qc4 Nb6 (22...Rb8 23.Bd7 Qb2 24.Nd5–/+ (24.Ne5? Rb4 25.Qf1 Qc3–+)) 23.Qe2 (23.Qb3 Qb8=+) 23...Qc7 (23...Bh5 24.h3 Bf3 25.Qf3–/+) 24.h3 (24.Nd5 Nbd5 25.Be5=+) 24...Nc8 (better 24...c4–/+) 25.Nd5+= Nd5 26.Be5 (worse 26.ed5 f6–/+) 26...Qb6 (26...Nf4 27.Bc7 Ne2 28.Be2+=) 27.ed5+= Rd5 28.Bc4 (28.Bc3 Bf8 29.Bc4 Rd8=) 28...Rd8= 29.Bc3 h6? (better 29...Qc7=) 30.Ne5+– Bf6 (better 30...Bg5 31.Qa2 Rf8+–) 31.Qg4?? (better 31.Ng6 Bc3 32.Qe8 Re8 33.Re8 Kh7 34.Nf8 Kg8 35.Nd7 Kh7 36.Nb6 Nb6 37.Bf7+–) 31...Kh7 32.Nd7 (better 32.h4!? Nd6 33.h5=) 32...Rd7–/+ 33.Bf6 (better 33.Qd7 Bc3 34.Rd1–/+) 33...Qf6?? (33...Qb4 34.Re8 Nd6 35.Qd7 Ne8 36.Qe8 Qc4–/+ (36...gf6? 37.Bf7 Bf7 38.Qf7 Kh8 39.Qf6 Kh7 40.Qf7 Kh8 41.Qf8 Kh7 42.g4+–)) 34.Qd7+= Nb6 (34...Qc3 35.Re3 Qc4 36.Qc8+=) 35.Qb5 Qc3 36.Re3 Qc1? (better 36...Qc4!? 37.Qb6 Qd4+=) 37.Bf1+– Nd5 (better 37...c4 38.Qb4 Qd1+–) 38.Re8?? (38.Re5 Nc3 39.Qc4+– (39.Qc5? Ne2 40.Kh2 Qf1–+; 39.Rc5?! Ne2 40.Qe2 Qc5=)) 38...Nc3 (better 38...Nc7 39.Rh8 Kh8 40.Qb8 Kh7 41.Qc7 Bd3–+) 39.Qb8+– Bf5 (39...Ne2 40.Re2 Bd3 41.Qe5 Be2 42.Qe2+–) 40.Rh8 Kg6 41.Qg3 (41.Qe5 f6 42.Qe8 (42.Qc5 Ne2 43.Kh2 Qc5 44.Be2 Qe5 45.Kg1 Qe2–+) 42...Kg5 43.Qe7+–) 41...Kf6+– 42.Kh2 (better 42.Qf3!? Ne4 43.Rd8+–) 42...Ne4+= 43.Qh4 g5? (better 43...Qg5 44.Qg5 hg5+=) 44.Qh6+– (44.Rh6?? Kg7 45.Qh5 Qf4 (45...Qf1?! 46.Rh8 Qa6 47.g4 Qd6 48.Kg2–/+) 46.Kh1 Qf2–+) 44...Bg6 (better 44...Ke7 45.Qf8 Kf6 46.Qd8 Kg7+–) 45.Re8 Qf4 (45...Qf1?? 46.Qh8 Kf5 47.Qe5) 46.Kh1 Nf2? (46...Qh4 47.Qh4 gh4+–) 47.Kg1 Qg3 48.Qh8 Kf5 49.Re2 (better 49.Bb5 Nh3 50.Qh3 Qh3 51.gh3+–) 49...Ne4+= 50.Qc8 (50.Qd8 Qf4+=) 50...Kf6 51.Qh8 Ke7 (51...Kf5 52.Qd8+=) 52.Qb2 (better 52.Qa1+=) 52...Qd6? (52...f5!?+=) 53.Re3 (53.Qb7!? Kf6 54.Re4 Be4 55.Qe4 Qe5+–) 53...Qf4 (53...Kf8 54.Bd3 Qd5 55.Be4 Be4 56.Qf6+–) 54.Re1 Qd6 (54...Qh4 55.Qe5 Kf8 56.Rd1 Qf2 57.Kh2 Qf4 58.Qf4 gf4 59.Rd7+–) 55.Ra1 (better 55.Qb7 Kf6 56.Re4 Be4 57.Qe4+–) 55...Bf5+– 56.Ra7 (56.Ra3 c4 57.Ra5 c3 58.Qb7 Kf8 59.Rf5 Qd4 60.Kh2 Qd6 61.Kh1 Ng3 62.Kg1 Nf5 63.Qc8 Ke7 64.Qf5 Qd4 65.Kh1 Qd1 66.Qg5 f6 67.Qc5 Kf7+–) 56...Bd7+= 57.Bb5 (57.Ra6!? Qd5 58.Be2 Qd4 59.Qd4 cd4 60.Rb6+=) 57...Qd1= 58.Kh2 Qd6 59.Kg1 Qd1 60.Kh2 Qd6 61.Kg1 ½–½. Abreu Suarez,Isauro (2050) – Gomez Dieguez,David (2205), 82nd Spanish Championship, 2017.

7.b5 cb5

8.cb5 Bd6 9.Be2 h6 (9...0-0 10.d3=) 10.d3 (10.0-0 0-0=) 10...Nbd7 11.Nbd2 (11.Nd4 Bg6=) 11...a4 (11...Nc5 12.Qb1=) 12.d4 (12.e4 de4 13.de4 Be4 14.Ne4 Ne4=+) 12...0-0 13.Ne5 (13.0-0 Qe7=+) 13...Nb6 14.0-0 (14.g4 Bh7=+) 14...Qe7 15.Ndf3 Rfc8 16.Bd3 (16.Ra2 Bc2 17.Qe1 Ne4–/+) 16...Ne4 17.Be4 (better is 17.g4!? Bh7 18.Nd2–/+) 17...de4–+ 18.Nd2 f6 19.Ng4 (19.f4 fe5 20.fe5 Bb8–+) 19...h5 20.Nf6 (20.f3 Nd5 21.Re1–/+) 20...gf6 21.Qh5 (21.Ra2 Qf7–+) 21...Rc2 22.Bc1 Qh7 23.Qh7 Kh7 24.h3 Nd5 (24...Rac8 25.g4 Bg6 26.h4–+) 25.Re1 (25.f3 Nc3 26.fe4 Ne4 27.Ne4 Be4–+) 25...Rac8 26.Nf1 (26.g4 Bg6–+) 26...e5 (26...Nc3!? 27.Bd2–+) 27.Ng3 Bg6 28.Ne2 Nc3 29.Nc3 R8c3 (29...R2c3?! 30.de5 fe5 31.Bb2–+) 30.de5 (30.h4–+) 30...Be5 31.Rb1 Rd3 (better is 31...Rb3 32.Rb3 ab3–+) 32.f4 (32.b6–+) 32...ef3 33.gf3 Bf5 (33...Bh2 34.Kf1 Bf5 35.Re2 Rd1 36.Kf2 Bg1 37.Kg3 Re2 38.e4 Bh2 39.Kh4 Be4 40.Rb4–+) 34.Rb4 Bg3 (35.Rf1 Bh3–+) 0–1. Schmidbauer,Josef (1635) – Poellner,Ludwig (2025), RLSO_Dorfen–Freyung, 2003.

8.cb5 Nbd7 9.a4 Rc8 10.Nc3 Bb4 11.Rc1 Nc5 (11...0-0!?+=) 12.Na2+= 0-0 13.Bc3 (better is 13.Be2+=) 13...Ba3–/+ 14.Ra1 Nfe4 (14...Nce4!? 15.Qb3 Bd6–/+) 15.Bd4+= f6 (15...Bg4 16.Be2+=) 16.d3 Nd6 17.Be2 e5 18.Bc5 Bc5 (worse is 18...Rc5 19.Qb3 Bb4 20.Nb4 ab4 21.d4 ed4 22.Nd4+/–) 19.d4 ed4 20.Nd4 Bd4 21.Qd4 Ne4 (21...Be4!? 22.0-0 Nf5=) 22.0-0= Nc5 23.Nc3 Attacks the isolani on d5 23...Nb3 (23...Be4 24.Bc4 Bg2 25.Nd5 Bd5 26.Bd5 Kh8 27.Rac1+=) 24.Qd5+/– Qd5 25.Nd5 Na1 (25...Kf7 26.Ra3 Rfd8 27.Nb6+/–) 26.Ne7 Kh8 27.Nc8 (27.Nf5?! Nb3=) 27...Rc8 28.Ra1 Kg8 29.Bf3 b6 30.g4 Be6 31.Rd1 Kf8 (31...Rc4 32.Rd6 Kf7 33.Rb6 Ra4 34.Rb7 Kg6 35.h3+–) 32.Rd6 Bb3 33.Rb6 Ba4 34.Kg2 Bb3 (better is 34...h6+–) 35.Ra6 Bc4 36.Ra5 Rb8 37.Bc6 Ke7 38.Kg3 Ke6 (38...Kd6 39.h4+–) 39.h4 Kd6 40.Ra7 Rg8 41.Rb7 Kc5 42.h5 Bd3 (42...h6 43.Kf4 g6 44.Rh7+–) 43.f4 Be2 44.e4 Bc4 45.Kf3 (45.g5 h6+–) 45...Be6 (45...h6 46.f5+–) 46.f5 Bc4 47.h6! gh6 48.Rh7 Bb3 (48...Rf8 49.Rh6 Bb5 50.Bb5 Kb5 51.Kf4+–) 49.Rh6 1–0. Tiller,B (2375) – Fidalgo Fernandez,L (2115), 4NCL, 2010.

8.cb5 Nbd7 9.d4 Bd6 10.Bd3 Bg4 (10...Bd3 11.Qd3 Rc8 12.Nbd2=) 11.h3 (11.0-0 Ne4=) 11...Bh5 12.Nbd2 0-0 13.0-0 Qb6 (13...Qe7 14.a4=) 14.a4 (14.Rc1 a4=) 14...Rac8 15.Qb3 Bg6 (15...Rc7 16.Rac1=) 16.Bg6+= hg6 17.Rac1 Bb4 18.Bc3 (18.Ba3 Bd2 19.Nd2 Rfe8+=) 18...Bd6= 19.Rc2 Ne4? (better 19...Rc7!?=) 20.Ne4+– de4 21.Nd2 e5 (21...Bb8!? 22.Ne4 Qc7+–) 22.Ne4 ed4?? (22...Bb8+–) 23.Bd4 (23.ed4?! Bb8+–) 23...Bc5 (23...Nc5 24.Qc4+–) 24.Rfc1 Bd4 25.Rc8 (25.ed4?! Rc2 26.Qc2 Re8+–) 25...Be5 (25...Bc5 26.R8c5 (26.Nc5?! Rc8 27.Nd3 Rc1 28.Nc1 Qc7+–) 26...Nc5 27.Nc5+–) 26.Qd5 (26.Rf8 Nf8 27.Rc8 Qe6 28.Qe6 fe6+–) 26...Qe6 27.Qb7 Rc8 (27...f5 28.Nc5 Nc5 29.Rf8 Kf8 30.Rc5+–) 28.Qc8 Kh7 (28...Nf8 29.Qe6 Ne6 30.Rc8 Kh7+–) 29.Ng5 (29.Ng5 Kh6 30.Ne6 fe6 31.Qh8 Kg5 32.Rc4 Bg3 33.f4 Kf5 34.Qd8 Nf6 35.Qd3 Ne4 36.Rc5 e5 37.Qd7 Kf6 38.Rc6 Nd6 39.Rd6) 1–0. Janek – Voas, internet, 2017.

8.cb5 Nbd7 9.Be2 =.

8.cd5 Qd5 9.Nc3 Qd8 10.Bb5 Nbd7 +=.

8.cd5 Nd5 9.Bb5 Nc6 10.a4 Bb4 (10...Ndb4 11.0-0=+) 11.0-0 (11.Nd4!? 0-0 12.Nf5 ef5 13.Qf3+=) 11...0-0= 12.d3 Nf6 13.e4 Bg4 14.Bc6 bc6 15.Qe2 Qc7 (15...Rb8 16.Qe3=+) 16.Qe3 h6 (16...Rfd8 17.h3 Bf3 18.Bf6 gf6 A) 19.gf3? Qe5 20.d4 Rd4-+ (20...Qd4?! 21.Na3-+); B) 19.Qf3=) 17.Rc1 (17.Bf6 gf6 18.Qh6+/-) 17...Nh5? (17...Nd7 18.Qd4 f6 19.Qc4=) 18.h3?? (better 18.Ne5 f5 19.Rc6+- (19.Nc6?! Qf4+/-)) 18...Bf3= 19.Qf3 (worse 19.gf3 Nf4 20.Nc3 Qe5-+) 19...g6 20.g3 Be7 21.Na3 Ba3 22.Ra3 Rfd8 23.Rac3 e5? (23...Ra6 24.Rc5 Qb8 25.Bc3+-) 24.Rc5 (24.Rc6!? Qe7 25.Rc7 Rd7 26.Be5 Rad8 27.Rd7 Rd7 28.Rc8 Rd8 29.Rd8 Qd8+-) 24...Qd7 (24...f6 25.Rc6 Qb8 26.Rc7 Qb2 27.Qg4 Qc1 28.Rc1+-) 25.Re5 Ng7?? (25...Rab8 26.Bc3 Qh3 27.Re7+-) 26.Rec5 (better 26.Qf6 Kf8 27.Rd5+-) 26...Ne6 (better 26...Ne8+-) 27.Qf6 Rac8 (27...Kh7+-) 28.Qh8 1-0. StrongStomach (2525) - universe64 (2385), lichess.org, 2019. (=1.a3 c6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.Nf3 Nf6 6.c4)

7.b5 dc4

8.Bc4 cb5 9.Bb5 Nbd7 10.Qa4 Be7 11.Ne5 0-0?? (better is 11...Rc8+=) 12.Nd7+– (12.Nd7 Nd7 13.Bd7+–) 1–0. combijack (1765) – oldtimer (1655), gameknot.com, 2012.

8.Bc4 Be7 9.d4 cb5 10.Bb5 Nbd7 11.Nc3 0-0 12.0-0 Ne4 13.Ne4 Be4 14.Bd3 (14.Nd2 Bc6 15.Bc6 bc6+=) 14...Bd3 15.Qd3 Bf6 16.Rac1 Rc8 17.a4 Qb6 18.Ba3 Rfe8 19.h3 h6 20.Rb1 Qc6 21.Qb3 b6 22.Rfc1 Qb7 23.Nd2 Rc1 24.Rc1 Rc8 25.Rc8 Qc8 26.Nc4 Qc6 27.f3 (27.Nd6 Be7 28.Qc4 Qc4 29.Nc4 Kf8+=) 27...Bd8 28.Qb5 Qb5 29.ab5 Bc7 30.e4 f6 31.Kf2 Kf7 32.Ke3 g5 33.g4 Bf4 34.Kd3 Bc7 35.Bd6 Bd6 36.Nd6 Ke7 37.Nc4 f5 (better 37...Kf7!?+=) 38.gf5+/- ef5 39.d5 fe4 40.fe4 Nc5 41.Kd4 Nb3 42.Ke5 White intends d6 42...Nc5 43.d6 Kf8 44.Kd5 Nd7? (44...a4+-) 45.e5 a4 (45...Ke8+-) 46.e6 Nf6 47.Kc6 1-0. opperwezen (2780) - universe64 (2330), Elite Bullet Arena, lichess.org, 2017.

7.b5 Bd6

8.d3 cb5 9.cb5 a4 10.Nc3 Qa5 11.Be2 0-0 12.d4? (better 12.Rc1=) 12...Ne4-+ 13.0-0?? (better 13.Rc1 Re8 14.0-0 Ba3 15.Ba3 Nc3 16.Qd2 Ne2 17.Qe2-/+) 13...Nc3 14.Bc3 Qc3 15.Qd2 Qd2 16.Nd2 Rc8 17.Nb1 (17.Ra2 Rc3 18.g4 Bd3 19.Bd3 Rd3-+) 17...Rc2 18.Bd1 Rc1 19.Be2 Rb1 20.Rab1 Bb1 21.Rb1 Ba3 22.Ra1 Bb4 23.Bd1 (23.Bd3 Nd7-+) 23...a3 24.Be2 (24.Ra2-+) 24…a2 0-1. orkawal - kylion (2310), gameknot.com, 2020. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 c6 4.e3 Bf5 5.a3 e6 6.c4)

8.Nd4 Bg6 9.bc6 bc6 10.cd5 ed5 11.Be2 =.

7.b5 Nbd7

8.a4 Bd6 9.d4 (9.bc6 bc6 10.Nd4 Bg4=) 9...Qe7 (9...dc4 10.Bc4 0-0 11.0-0=+) 10.Nbd2 e5 (10...Bb4 11.Be2=) 11.de5 Ne5 12.Nd4 Nd3 (12...Bg4 13.Qc2=) 13.Bd3= Bd3 14.bc6 dc4 15.Qf3 Bb4 16.cb7 Rb8 (better 16...Bd2!? 17.Kd2 Ne4 18.Kc1 Qb7-/+) 17.Nc6+= Qb7 18.Bf6 gf6 19.Nb8?? (better 19.Qf6 0-0 20.f3= (20.Nb8 Qg2 21.0-0-0 Ba3 22.Qb2 Bb2 23.Kb2 Rb8 24.Kc1 Qf2 25.Rdg1 Kh8 26.Rg8 Kg8 27.Rg1 Qg1 28.Nf1 c3 29.e4 Qf1; 20.Nb4 Qb4 21.e4 Rb6 22.Qg5 Rg6-+)) 19...Bd2 20.Kd1 Bc3 (20...Qb3 21.Kd2 Qc2 22.Ke1 Qc3 23.Kd1 Qa1 24.Kd2 Qb2 25.Ke1 Qb4 26.Kd1 Qb1 27.Kd2 c3 28.Kc3 Qc2 29.Kd4 Qc4) 21.Qb7+- (21.Qb7 Ba1 22.Qc8 Ke7 23.Qh8+-) 1-0. My_username (2590) - universe64 (2510), lichess.org, 2021.

8.Nd4 Bb1 9.Rb1 c5 10.Nf3 b6 11.d4 Be7 12.a4 0-0 13.Bd3 dc4 14.Bc4 Qc7 15.Qb3 cd4 16.Bd4 Bb4 17.Ke2 Nc5 18.Qa2 Nfe4 19.Rhc1 Rae8 20.Be5 Qb7 21.Rc2 f6 22.Bd6?? (better is 22.Bd4=) 22...Nd6–+ 23.Nd4 (23.Kf1–+) 23...Nc4 24.Rc4 Qd5 (24...Qg2 25.Nf3 Nd3 26.Rf1–+) 25.Rd1 (25.Qc2 Qg2 26.Nf3 Qg6 27.Qg6 hg6–+) 25...Qh5 (25...Na4 26.Qc2 Nb2 27.Rb4 Nd1 28.Rb1 Ne3 29.Ke3 Qg2 30.Nf3–+) 26.f3 (26.Nf3–+) 26...Qh2 27.Kf2 Kh8 28.Nc6 (28.Qc2 f5 29.Ne2 Ne4 30.Kf1 Qh1 31.Ng1 Bd6 32.Re4 fe4 33.Qe4 Rd8–+) 28...e5 (better is 28...Be1! 29.Re1 Nd3 30.Ke2 Qg2 31.Kd3 Qa2 32.Rec1–+) 29.Qb1 e4 (29...Na4?! 30.Rh1 Nc3 31.Qa1 (31.Rh2?? Nb1 32.Nb4 ab4–+) 31...Qh1 32.Qh1=) 30.Rh1 (30.Nb4 ef3 31.Kf3 Qh5 32.Kf2 ab4 33.Rb4 Ne4 34.Re4 Re4 35.Qe4 Qd1 36.Kg3–+) 30...Nd3 31.Qd3 Qh1 (31...ed3?! 32.Rh2 Bc5 33.Rc5 bc5 34.e4–/+) 32.Qe2 ef3 33.gf3 Qh2 34.Kf1 Qe2 35.Ke2 Re6 36.Nd4 Rd6 37.Rc7 h5 38.Nf5 Rd2 39.Kf1 g6 40.Nh4 Rg8 41.f4 g5 42.fg5 fg5 43.Ng2 h4 44.Rc6 Rf8 45.Kg1 h3 46.Rh6 Kg7 47.Rh3 Rc8 48.Rf3 Rc1 (48...Rc1 49.Rf1 Rf1 50.Kf1 Ra2–+) 0–1. combijack (1770) – oldtimer (1640), gameknot.com, 2012.

7.b5 Be7

8.Nc3 0-0 9.Rc1 h6 10.Be2 dc4 11.Bc4 Qc7 12.Qe2 Nbd7 13.0-0 Rfd8 14.Na4 Bg4 15.h3 Bh5 16.d4 Rac8 17.g4 (17.bc6!? Qc6 18.Bb3=) 17...Bg6=+ 18.bc6 bc6 19.Bb5 Qb8 (19...Qd6 20.Ba6 Ra8 21.Ne5+–) 20.Bc6+= Rc7 21.Bd7 (21.Bb5 Rdc8 22.Rc7 Rc7+=) 21...Nd7= (worse 21...Rcd7 22.Ne5+–) 22.Rc7 Qc7 23.Rc1 Qa7 24.Nd2 Rb8 25.f3 Bh7 (25...h5!?=) 26.Kg2+= Nf8 27.Qc4 Bg5 28.Rc3 Ng6 29.Rb3 Rb3 30.Qb3 (30.Nb3 Qb8 31.d5 A) 31...Be3?! 32.Qc3 (32.de6?? Nf4 33.Kh1 Ne6–+) 32...Nh4 33.Kh1–+; B) 31...Nh4 32.Kf1 Nf3 33.de6 Bg6–+) 30...Qc7 31.f4 Nf4 32.ef4 Qf4 33.Nf1 Be4 34.Kg1 Bd5 35.Qd3 Bh4 36.Qe3 Qb8 37.Bc3 (37.Qe2!?+–) 37...Qb1 38.Nc5 (38.Ba5? Qc2 39.Bd2 Qa4–+) 38...Bc4 39.Qf3 a4 40.Qa8 (40.Bd2 Qa1 41.Be3 Bd8=) 40...Bd8 41.Qf3 (41.Qd8?? Kh7 42.Kh2 Qf1–+) 41...Be7 42.Qa8 Bf8 (42...Bd8 43.Qg2= (43.Qd8 Kh7 44.Kh2 Qf1–+)) 43.Qf3 Qc1 44.Na4 (44.Bb4 Qa1=) 44...Qc2 45.Nb6 Be2 46.Qe3 Bf1 47.Kf1 Qb1 48.Kf2 Qb6 49.a4 Bb4 50.Qd2 Be7 51.a5 Qb5 52.Qe2 Bh4 53.Ke3 Bg5 (53...Qc6 54.Kd3=) 54.Kf2 ½–½. forsetinn (2345) – the_great_omni (2295), gameknot.com, 2015.

8.Nc3 Nbd7 9.d4 (9.bc6 bc6 10.Nd4 dc4 11.Nc6 Qb6 12.Ne7 Ke7=) 9...0-0 (9...cb5 10.Nb5 0-0 11.c5=) 10.c5 cb5 11.Bb5 Qc7 12.Rc1 Rac8 13.Na4 Bg6 14.0-0 Bh5 15.Be2 Qb8 (15...Ne4 16.Qe1=) 16.Qb3 Qa7 (16...Rc6 17.Bc3 Bf3 18.Bf3+=) 17.Qb5 Ra8 18.Rfe1 Bf3 19.Bf3 Rfc8 (19...Qa6 20.Qa6 Ra6 21.Rb1+/–) 20.Be2 Rc6 21.Qb3 Bd8 22.Bb5 Rcc8 23.Rc2 (23.f3 Qb8+/–) 23...Qb8 24.f3 Bc7 25.f4 Bd8 26.Rb1 (26.f5 Nf8+/–) 26...Qc7+= 27.Bc1 Rcb8 (27...Rab8 28.Nc3+=) 28.Bd2 Ne4 29.Be1 Qc8 30.Be2 (30.Rcb2 Bc7+/–) 30...Qc6+= 31.Bb5 Qc8 32.Nb2 (32.Bd3 Qc6+/–) 32...Nf8 (32...Ndf6 33.Bh4+=) 33.Rbc1 (33.Bd3 Nd7+/–) 33...Ng6 (33...Qc7 34.Na4+=) 34.Qa4 (34.Na4 Ne7+/–) 34...Ne7 (34...Qc7 35.Bd3+=) 35.Nd3 (35.Bd7 Qc7 36.Be6 Qc6+/–) 35...Bc7 36.Rb2 (36.Nf2 Nf6+=) 36...Nf5 37.Bf2 (37.Re2 b6+=) 37...Kf8 (37...Qd8 38.Qb3=) 38.Qb3 Ne7 (38...Kg8 39.Ne5 Qd8 40.Bd3+=) 39.Qd1 Nc6 40.Be1 Ne7 (40...Na7 41.Ba4+=) 41.a4 Kg8 42.Rcc2 (42.Nf2 Nf2 43.Bf2 b6+/–) 42...Nf5+= 43.Bd2 (43.Qf3 b6+=) 43...Qd8 44.Qe1 Qf6 (44...b6 45.Qc1=) 45.Nf2 Nf2 46.Qf2 (worse is 46.Kf2 Qh4 47.Ke2 Qh2–/+) 46...Nh6 47.Be2 (47.Qf3 Qh4+/–) 47...Qd8 (47...b6 48.c6+=) 48.Rc1 (48.Rb5 b6+/–) 48...Qc8 (48...b6 49.c6+=) 49.Qe1 (49.Rcb1 Qd7+/–) 49...Bd8 (49...Nf5 50.Rcb1+/–) 50.Rb5 Qc6 (50...Nf5 51.Bd3+/–) 51.Rcb1 (51.Ba5 Ba5 52.Ra5 Nf5+/–) 51...Kh8 (51...Qc7 52.Bd3+/–) 52.R1b2 (52.Ba5 Ba5 53.Ra5 Nf5+–) 52...Ng8 (52...Nf5 53.Bd3+/–) 53.Qb1 (53.Ba5!? Ba5 54.Ra5 Ne7+–) 53...Ra7+/– 54.Bf3 (54.Bd3 Nf6+/–) 54...Nf6 55.Be1 Qd7 (55...Kg8 56.f5+/–) 56.Bd1 (56.Bg3 Be7+/–) 56...Ne4 57.Rc2 (57.Bc2 Qc6+/–) 57...Qc7 (57...Rc8 58.Bf3+=) 58.Bf3+/– Nf6 (58...Qc6 59.Be4 de4 60.Bc3+/–) 59.Bh4 (59.c6 Qe7+/–) 59...Kg8 (59...Ne8 60.Bg3 Qc6 61.Qb3+/–) 60.Bf6 (60.c6 b6+–) 60...Bf6+/– 61.g3 (61.c6 b6+/–) 61...g6 62.Qd1 Rd8 63.Qd2 (63.Rcb2 Rd7+/–) 63...Bg7 64.Qc3 (64.Rcb2 Rb8+/–) 64...f5 (64...Rc8 65.Qd3+/–) 65.Rcb2 Bf6 (65...Re8 66.Rb6 Qf7 67.Qb3+/–) 66.Qc1 (66.Rb6 Qf7+/–) 66...Rb8 67.Rc2 (67.Rb6 Qf7+/–) 67...Bd8 (67...Rc8 68.Qb2+/–) 68.Qb1 Qc6 69.Be2 ½–½. Engelhardt,Erhard (1630) – Pixa,Richard, Berlin–ch Class–C, 2009.

8.bc6 bc6 9.cd5= cd5 (9...ed5 10.Be2=) 10.Bb5 Nbd7 11.Nd4 Bg6 12.Nc3 Bd6 13.Na4 (13.0-0 0-0=) 13...0-0 14.Nc6 (14.Rc1 Rc8=) 14...Qc7 15.Rc1 Qb7 16.Qe2 Rfc8 17.0-0 Ne8 (17...e5 18.f3=) 18.Nd4 Nc5 19.Nc5 Rc5 20.Rc5 Bc5 21.Bc6 Qb2 22.Ba8 Nc7 (worse is 22...Ba3 23.Qa6 Qb4 24.Bc6+/–) 23.Bc6 Qa3 24.Nb5 (24.Qg4 Bd3 25.Rd1 Qb4=) 24...Nb5 (24...Bd3 25.Na3 Be2 26.Ra1=) 25.Bb5 d4 (25...Bd6 26.d4=) 26.Qc4+= de3 (26...Qb4 27.Rc1 Bf8 28.ed4 Qd2 29.Qc3+=) 27.de3 h6 28.h4 (28.Rc1 Bd6+=) 28...Be7 29.Rd1 Qb2 (29...Bf6 30.g3=) 30.Ba4 (30.g3 Qb4=) 30...Bb4 (30...Qb4 31.Qc8 Bf8 32.Rd8+=) 31.Rd8 Kh7 32.Qc8 Bf5 (better is 32...Qa1!? 33.Kh2 Bb1+=) 33.h5+– g6 (33...Qa1 34.Bd1 g6 35.Rd7+–) 34.Rd7 Qa1 35.Bd1 Kg7?? (35...Bc3 36.Qf8 (36.Rf7?! Bg7 37.hg6 Kg6+–) 36...gh5 37.Qf7 Bg7 38.Rd8+– (38.Qh5?! a4+–)) 36.Qb7 (better is 36.Qe8 Qf6 37.Rd8 Qd8 38.Qd8 gh5 39.Bh5 Bg6 40.Bg6 Kg6 41.Qg8 Kf6+–) 36...Qf6? (better is 36...Bf8 37.Rf7 Kg8+–) 37.e4+– Bh3 (37...gh5 38.ef5 Qf5+–) 38.gh3?? (better is 38.e5 Qf5 39.gh3+–) 38...Bc5= 39.Rf7 (39.Bf3 Qf3 40.Qb2 Kh7=) 39...Qf7+= 40.Qb2 Qf6 41.e5 (41.Qb7 Qe7 42.Qe7 Be7 43.hg6 e5+=) 41...Qg5 (41...Qf7 42.hg6 Qg6 43.Kh2+=) 42.Kf1 Bb4 (42...Qf4 43.Bg4+=) 43.Qc2 Qf5 44.Qc7 Kg8 (44...Qf7 45.Qc6 g5+=) 45.Bg4+/– Qd3?? (better is 45...Qb1 46.Kg2 Qe4 47.Kh2 Qf4 48.Kg1 gh5 49.Be6 Kh8 50.Qd8 Qf8 51.Qf8 Bf8+–) 46.Kg1+– Qd5 1–0. Heinzel,Olaf – Merz,Martin, Ruhrgebiet VK1–chT, 1996. (=1.c4 Nf6 2.b4 c6 3.e3 d5 4.Bb2 Bf5 5.Nf3 e6 6.a3 a5 7.b5 Be7)

8.bc6 Nc6 9.cd5 Qd5 10.Nc3 =.

8.cd5 cd5 9.Be2 Nbd7 =.

6.a3 dc4

7.Bc4 b5 8.Be2 =+.

7.Bc4 Bd6 8.Nd4 Bg6 9.Nc3 0-0 10.0-0 Qc7 11.f4 Ne4 12.Ne4 Be4 13.Qg4 f5?? (better is 13...Bg6+=) 14.Be6 Kh8 15.Nf5 Bf5 16.Bf5 Na6 17.Bd3 Qf7 18.Rf3 Be7 (18...h6+–) 19.Rh3 h5 20.Rh5 Kg8 21.Bh7 (21.Bh7 Kh8 22.Bg6 Kg8 23.Rh8 Kh8 24.Qh5 Kg8 25.Qh7 mate) 1–0. usingprogram (2035) – rak69, kurnik, 2011.

7.Bc4 Bd3

8.Qb3 Bc4 9.Qc4 Nbd7 10.0-0 Nb6 11.Qc2 Bd6 12.Nc3 Nc4 13.Bc1 Qc7 (13...a5 14.b5 Rc8 15.bc6 Rc6 16.d3=) 14.Ne4 Ne4 15.Qe4 (15.Qc4 Nf6=) 15...b5 (15...Ne5 16.Nd4=) 16.d3 Ne5 17.Bb2 (17.Nd4!? f5 18.Qh4=) 17...f5+= 18.Qd4 Nf3 19.gf3 0-0-0 (19...Bh2 20.Kh1 Bd6 21.Qg7 Qg7 22.Bg7+=) 20.Qh4 (20.Qg7?? Rhg8 (20...Bh2?! 21.Kh1 Rhg8 22.Qc7 Bc7 23.d4+=) 21.Qg8 Rg8 22.Kh1 Bh2–+) 20...Be7 21.Qg3 (21.Qh3 Rd3 22.a4 Bf6 23.Bf6 gf6+=) 21...Rd3 (21...Qg3!? 22.fg3 Rd3+=) 22.Qg7= Rdd8 23.Qh8 (23.Kh1 Rhf8=) 23...Rh8 24.Bh8 Qd8 (24...a5 25.Bc3=) 25.Bd4 Kb7 (25...Bd6 26.Rfd1=) 26.Kh1 (26.Rfd1 a5+=) 26...Qd5= 27.Kg2 h5 (27...e5!? 28.Bb2 Qg8 29.Kh3 f4=) 28.Rfd1+= h4 29.h3 e5 30.Ba7 Qg8 (30...Ka7 31.Rd5 Discovered attack) 31.Kh1 (31.Kh2!? Qe6 32.Bc5 Bc5 33.bc5=) 31...Qe6+= 32.Bc5 Bc5 33.bc5 Qc4 (33...f4 34.Kh2 Qc4 35.e4+=) 34.Rac1 (34.Rdc1 Qe2 35.Kg2 e4 36.fe4 fe4+=) 34...Qe2 (better is 34...Qa2!? 35.Kg2 Qa3+=) 35.Kg2+/– e4 (35...Qa2 36.Rd7 Ka6 37.Rd3+=) 36.fe4 fe4 37.Rd7 Ka6 38.Re7 Qf3 39.Kg1 Qh3 40.Re4 Ka5 (better is 40...Qf5 41.Rf4 Qd5+/–) 41.Rc3 (better is 41.Rf4+/–) 41...Qf5= 42.Rf4 Qe5 (42...Qg6 43.Kh2 h3 44.Kh3 Qh7 45.Rh4 Qf5 46.Kg2 Qg5 47.Kh3 Qf5 48.Kg2 Qg5 49.Kh3 Qf5=) 43.Rc1 (43.Rc2 h3 44.Kh2 Qg5=) 43...h3 (43...Qb2!? 44.Rd1 Qa3 45.Rh4 Qc5=) 44.Kh2+/– Qb2 Black prepares b4 45.Rg1 Qa3 46.Rg5 b4 47.Rg1 (better is 47.Kh3!? Qc1 48.Rf7=) 47...b3–/+ 48.Rf8 (48.Rg8 Kb5 49.Rb8 Kc5 50.Kh3 b2–/+) 48...Qb2 (48...Qc5 49.Ra8 Kb4 50.Rb8 Ka3 51.Ra8 Kb2 52.Kh3 Qh5 53.Kg3 Qg5 54.Kh2 Qh4 55.Kg2 Qe4 56.Kg3–+) 49.Kh3+= Kb5 (49...Qe5 50.Ra8 Kb4 51.Raa1–/+) 50.f4 (50.Rg5 Qc2=) 50...Qe2–/+ 51.Rb8 Kc4 (51...Kc5 52.Rc1 Qc2–+) 52.f5? (better is 52.Rc1 Qc2 53.Rf1+=) 52...Qf3 53.Rg3 Qf5 54.Kg2 Qc2 (54...Qc5?! 55.e4 Qd4 56.Rbb3 Qe4 57.Kf1+=) 55.Kh3 b2 (better is 55...Qh7 56.Kg2 Kc5–+) 56.Rg4+= Kc5 57.Rgb4 Qh7 58.Kg2 Qc2 59.Kf3 (59.Kh3 Qe2+=) 59...Qd1+= 60.Kg2?? (better is 60.Kf4 Qf1 61.Ke4 Qh1 62.Kd3 Qd1 63.Kc3+=) 60...Qd2–+ 61.Kf3 Qb4 62.Rg8 b1Q 0–1. Hall,P J – Gold,Hamish R, NZL–ch Major op, 1999.

8.Bd3 Qd3 9.Bf6 gf6=.

7.Bc4 Nbd7

8.0-0 Bd6 9.Re1 (9.Nd4 Bg4 10.f3 Ne5 11.Nc6 bc6 12.Be5 Be5+=) 9...Bg4 10.h3 (10.Nc3 0-0=) 10...Bf3 (10...Ne5 11.Be5 Bf3 12.Qf3 Be5 13.d4+=) 11.Qf3 Ne5 12.Be5 Be5 13.d4 Bd6 14.e4 Be7 15.d5 (15.Rd1 0-0+=) 15...ed5= 16.ed5 Nd5 (16...b5 17.d6 Qd6 18.Bb5+/–) 17.Qe4 (17...Qd6 18.Ra2=+; 17.Rd1!?+=). Loewe,Edward – Muller,F, corr SOK–89–42, 1989.

8.d4 Be7 9.Nbd2 Bg6 10.0-0 a5 11.b5 0-0 12.Re1 cb5 13.Bb5 Nb6 14.e4 Rc8 15.Ne5 Rc7 16.Qb3 a4 17.Ba4 Na4 18.Qa4 Qa8 19.Qa8 Ra8 20.Ng6 hg6 21.f3 Rc2 22.Rec1 Rd2 23.Rc7 Bd6 24.Rb7 Nh5 25.Bc3 Rd3 26.Be1 Rda3 27.Rab1 Ra1 28.g3 Rb1 29.Rb1 Bb8 30.Kg2 Nf6 31.Bb4 Ba7 32.Bc3 Rc8 33.Ba1 Rd8 34.Rb4 Ne8 35.Kf1 Bb8 36.Ke2 Nc7 37.Rb6 Na8 38.Ra6 Nc7 39.Rb6 Ba7 40.Rb7 Bd4 41.Bd4 Rd4 42.Rc7 Ra4 43.Rc8 Kh7 44.Rc7 f6 45.Re7 e5 46.h4 Ra3 47.f4 ef4 48.gf4 Rh3 49.e5 fe5 0–1. karoo54 – rzgliwice (1630), kurnik, 2012.

7.Bc4 Be7

8.0-0 0-0 9.d4 Nbd7 10.Nbd2 Nb6 11.Bb3 Nbd5 12.Bc2 Bg4 13.h3 Bh5 14.Qb1 Bg6 15.Bg6 hg6 16.Ne4 (16.Nb3 Qb6+=) 16...Qc7 (16...Ne4 17.Qe4 a5 18.ba5 Qa5 19.Ne5=) 17.Nf6+= Nf6 18.Nd2 Rad8 19.Ne4 Nd5 20.Nc3 Bg5 21.f4 Bh4 22.Nd5 (22.Qd3!?=) 22...ed5+= 23.Qd3 Rfe8 24.Rf3 Re4 25.Bc3 Rde8 26.Be1 Bd8 27.Bf2 b6 28.g4 f5 29.gf5 gf5 30.Kh2 R8e6 31.Rg1 Qf7 32.Rfg3 g6 33.Qe2 Bh4 34.R3g2 Bf2 35.Qf2 Re3 (better is 35...Kf8 36.Rg3 Qe8+=) 36.Qh4? (better is 36.Rg6! Kf8 37.Re6 Qe6 38.Rg2=) 36...Re2 (36...Ra3? 37.Qh6 Ra2 38.Ra2+–) 37.Qd8 Kg7 38.Re2 Re2 39.Kh1? (39.Rg2 Qe7 40.Qe7 Re7–/+) 39...Re4 (better is 39...Qe6 40.Qg5 Qe4 41.Rg2 Rg2 42.Qg2 Qf4–+) 40.Qd6 Rd4 41.Qe5 (better is 41.Qc6 Rd3 42.Kh2–+) 41...Qf6 42.Qc7 (42.Qe3 Re4 43.Qg3 Qe6 44.Qc3 d4–+) 42...Kh6 (42...Kh6 43.Qb8 Rd3–+) 0–1. Fournier,Frederic (1945) – perseverante (2050), Active, 2004.

8.d4 0-0 9.Nc3 Nbd7 10.0-0 Nb6 11.Bd3 Bd3 12.Qd3 a5 13.b5 a4 (13...c5 14.Qe2=) 14.bc6+= bc6 15.Ne5 c5 (15...Bd6 16.Qe2+=) 16.Nb5 cd4 (16...c4!? 17.Qe2 Nfd5+=) 17.Bd4+– (17.ed4?! Nfd5=) 17...Nbd5 18.Rfc1 (better 18.Rab1+–) 18...Bd6?? (better 18...Qe8+–) 19.Nc6+– Qd7 (19...Bh2 20.Kh2 Ng4 21.Kg3+–) 20.Nd6 Qd6 21.Bf6 gf6 22.e4 Rac8 (22...Rfe8 23.g3+–) 23.ed5 ed5 24.Qd5! Rc6 (24...Qd5 25.Ne7 Double attack (25.Ne7 Decoy)) 25.Qc6 Qc6 (25...Qd4 26.Rd1 Qe5 27.Re1+–) 26.Rc6 0–1. Janek – Mikhail, internet free game, 2017.

6.a3 Bd6

7.Qb3 0-0 8.d3 Nbd7 9.Nbd2 Re8 10.Be2 Qe7 (10...e5 11.0-0=) 11.0-0 Bg6 (11...e5 12.Qc2=) 12.Rfe1 a5 13.c5 Bc7 14.d4 ab4 15.ab4 Ne4 16.b5 Ba5 17.Red1 Nd2 18.Nd2 Bd2 (18...e5 19.Rac1=) 19.Rd2 Ra1 20.Ba1 Ra8 (20...e5 21.Qa3+=) 21.Ra2 Ra2 22.Qa2 Qd8 23.Qa7 Qb8 24.b6 (better is 24.Qb8 Nb8 25.Bc3+=) 24...f5? (24...Qc8!?+=) 25.Bc3 (25.Ba6 Qf8+–) 25...Kf8? (25...Qc8 26.Be1+=) 26.Be1 (better is 26.Ba6!? Qe8 27.Bb7 Nb8+–) 26...Be8 27.f4 Qc8 28.Bh4 Kf7 29.g4 (better is 29.Qa3+/–) 29...Nf6?? (better is 29...Kg8+=) 30.Bf6 (30.Ba6 Qd7 31.Bb7 g5 32.fg5 Ng4 33.Bc6 Qa7 34.Be8 Ke8 35.ba7 Nh2 36.a8Q Kf7 37.Kh2 e5 38.g6 Kg7 39.Qd8 Kh6 40.Qf6 ed4 41.g7 Kh5 42.Qg5) 30...Kf6 (30...gf6 31.Ba6 Bd7 32.Bb7+–) 31.h3 (31.g5 Kg6 32.Ba6 e5 33.Bb7 Qe6+–) 31...g5 (31...Kg6+–) 32.Qa1?? (better is 32.Ba6! Qd7 33.Bb7 gf4 34.Ba6 fe3 35.Qd7 Bd7 36.b7+–) 32...Bg6+/– 33.Qe1 h6 (33...gf4 34.ef4 fg4 35.Bg4+/–) 34.h4 (34.Qg3 Qd7+/–) 34...fg4 (34...gf4 35.Qf2 Qb8 36.h5+/– (worse is 36.ef4 fg4 37.Bg4 Be4=)) 35.Bg4 (35.Qg3 Bf5+/–) 35...Bf5 (35...gf4 36.ef4 Be4 37.Kf2+=) 36.hg5 hg5 37.fg5 Kg5 38.Bf3 Qb8 39.Qf2 Kg6 40.Qg2 Kf6 41.Qf2 (41.Kf2 Bg6+/–) 41...Qg8 (41...Kg6 42.Qh4+/–) 42.Kf1+= Ke7 (42...Qg5 43.Ke2=) 43.Qh2 Qg7 44.Kf2 (better is 44.Qd6 Kf6 45.Ke2+/–) 44...Ke8?? (better is 44...e5+=) 45.Qb8+– Kf7 46.Qb7 Kf6 47.Qg7 Kg7 48.b7 (48.b7 Bg6 49.b8Q+–) 1–0. Engelhardt,Erhard (1750) – Wilke,Hans_Peter (1610), Lichtenberger Sommer, 2016.

7.Nc3 dc4 8.Bc4 b5 9.Be2 =.

7.Nc3 e5 8.cd5+= cd5 9.Nb5 e4 10.Nd6 Qd6 11.Nd4 Bd7 12.Rc1 a6 13.b5 (13.d3 0-0+=) 13...0-0= 14.Qb3 Ng4 15.h3 Ne5 16.Be2 (16.Qc3 ab5 17.Nb5 Bb5 18.Bb5 Nbc6 19.Bc6 Nd3 20.Kf1 d4 21.Qd4 Qd4 22.Bd4 Rfc8= (worse is 22...bc6 23.Rc6 Rfc8 24.Rc8 Rc8 25.Ke2+/–)) 16...f5 (16...ab5 17.Nb5 Bb5 18.Qb5=) 17.Bc3 (17.a4 Rc8+/–) 17...a5 18.Qb2 (18.f4 ef3 19.Nf3 Nf3 20.Bf3 Be6+=) 18...Be8 (18...Nc4!? 19.Bc4 dc4=) 19.Nb3+/– Nbd7 (19...Nc4 20.Bc4 dc4 21.Na5+/–) 20.Na5 Bh5 (20...Qb8 21.0-0+/–) 21.Bf1 (21.d4 Nd3 22.Bd3 ed3+–) 21...Nd3? Black intends f4 (better is 21...Rfc8 22.b6 Nb6=) 22.Bd3+– ed3 23.Bb4 Qg6 24.Rg1 (24.Bf8 Nf8 25.g4 fg4 26.Nb7 gh3+=) 24...Rfe8 (24...Rfc8 25.Nb3+= (worse is 25.Nb7 Ne5 26.g4 Rc1 27.Qc1 fg4=)) 25.Nb3 (25.Qd4 Ne5 26.Qd5 Kh8+=) 25...f4 (25...Ne5 26.Nd4 Rec8 27.Rc8 Rc8 28.Bc3+=) 26.g4 (26.Qd4!?+/–) 26...Ne5+= 27.Kf1 Ng4?? (better is 27...Nf3 28.Nd4 Ng1 29.gh5 Qh5 30.Kg1 Qh3 31.ef4 Qg4 32.Kf1 Qf4+=) 28.hg4+– (28.Rg4 Bg4 29.hg4 Qg4–+) 28...Bg4 29.Ke1 Qh5 (29...Rad8 30.Rc7 Qg5 31.Qd4+– (worse is 31.Rb7 fe3 32.Qg7 Qg7 33.Rg7 Kg7 34.Rg4 Kf6+–)) 30.Qd4 (better is 30.Rc7 Re5 31.Nc5+–) 30...Qh2 (30...Re6 31.Rc7 Rg6 32.Rg7 Rg7=) 31.Qd5 Be6 (31...Kh8 32.Rh1 Be6+–) 32.Rg7 Kh8 33.Qg2 (33.Qd4 Qf2 34.Kf2 fe3 35.de3 h6 36.Rb7 Kg8 37.Qg7) 33...Qh5+– 34.f3 Qh4 (34...Bb3 35.Bc3 Qe5 36.Be5 Re5 37.Rh7 Kh7 38.Rc7 Bf7 39.Rf7 Kh6 40.Qg7 Kh5 41.Qh7 Kg5 42.Rg7 Kf6 43.Qg6) 35.Kf1 fe3 (35...Rf8 36.Rb7 Qh6+–) 36.Rg8! Rg8 (36...Bg8 37.Bc3 Mate attack; 36...Rg8 37.Bc3 Mate attack) 37.Bc3 Rg7 (37...Qf6 38.Bf6 Rg7 39.Qg7) 38.Qg7 1–0. Geertsma,Folkert Jan – Groenhuis,J (1700), 33rd Taminco Open, Ghent BEL, 2010.

7.c5 Be7 8.g3 h6 (8...b6 9.cb6 ab6 10.Bg2+=) 9.Bg2 Nbd7 10.0-0 0-0 11.Nc3 (11.d3 Qc7=) 11...Kh8 (11...Bd3 12.Ne2+=) 12.Ne2 Ng8 (12...Qc7 13.Nfd4 Bd3 14.f4+=) 13.d3 Bf6 14.Bf6 Qf6 15.Nfd4 Bh7 16.Nc3 (16.f4 Ne7=) 16...e5 17.Nb3 Rae8 (17...Bf5 18.Qc2=) 18.d4 e4 (18...Ne7 19.Re1=) 19.Ne2 (19.Nd2 Bf5=) 19...g5 (19...Bf5 20.Nf4=) 20.Nd2 Qg6 21.Nc3 f5 22.a4 (22.Qa4 Ra8+/–) 22...Re7 (22...f4 23.b5=) 23.b5 Ndf6 (23...f4 24.a5+=) 24.Rb1 (24.f4 ef3 25.Qf3 Qh5 26.Qh5 Nh5+/–) 24...Nh5 Black intends f4 (24...f4!?+=) 25.bc6 bc6 26.a5 Rg7 (26...f4 27.Re1+=) 27.a6 (27.Qa4 f4+/–) 27...f4 28.Rb7 Rb7 29.ab7 f3 30.Bh1 Rb8 31.Qb1 (better is 31.Qb3 Qf7 32.Nce4 Be4 33.Ne4 Qb7 34.Qb7 Rb7 35.Nd6+– (35.Bf3?! de4 36.Bh5 Nf6+/–)) 31...Qf7+= 32.Qb4 Rb7 33.Qa4 Qd7 34.Qa2 Ngf6 35.Rb1 Bf5 36.Rb3 Rb3 (36...g4 37.Ra3–/+) 37.Qb3+= Qc7 38.Qa4 Bc8 39.Na2 Qd7 (39...Qb7 40.Qc2–/+) 40.Nb4+= a5 (40...g4!?+=) 41.Qa5= (41.Nc6? Bb7–+) 41...Qh3 (better is 41...Qb7!?=) 42.Qd8 (42.Nc6 Kh7+/–) 42...Kh7 43.Qc7 (43.Nc6 Ng4 44.Qe7 Ng7 45.Qg7 Kg7 46.Nf3 ef3 47.Bf3 Qh2 48.Kf1 Qf2) 43...Qd7 44.Qc6 Qc6 45.Nc6 g4 46.Ne7 Be6 47.c6 Ne8 48.Nb3 Nc7 49.Nc5 Nf6 50.Kf1 (50.Ne6 Ne6 51.Nf5 Kg6=) 50...Kg7= 51.Ne6 Ne6 52.Nf5 Kg6 53.Nd6 Nc7 54.Ke1 (54.Kg1 Ng8 55.Nc8 Kf5+=) 54...Nfe8 (54...Ng8 55.Nc8–/+) 55.Nb7 (55.Ne8 Ne8 56.Kd2 Kf5=) 55...Kf6 (55...Na6 56.Nd8–/+) 56.Kd2 (56.Nc5 Ne6 57.Nd7 Ke7–/+) 56...Ke7 (56...Na6!?–/+) 57.Kc3= Nd6 58.Nc5 h5 59.Bf3? (better is 59.Kb4+=) 59...ef3–+ 60.Kd3 (60.Kb4 Nc4–+) 60...Ncb5 (better is 60...Ne6 61.c7 Nc7–+) 61.Na6 (61.e4–+) 61...Ne4 62.Nb4 (62.Kc2 Nf2 63.Nc5 Kd6–+) 62...Kd6 63.Kc2 Nf2 64.Kd2 Ne4 65.Ke1 Nc7 (better is 65...f2!? 66.Kf1 Nbc3 67.Nd3–+) 66.Kf1 Ke6 (66...Na8 67.Nd3–+) 67.Nd3 Kf5 (better is 67...Na6!? 68.Ne5–+) 68.Nf4 Kg5 69.Nd3 h4 70.Nf2 (70.gh4 Kh4 71.Nf4 Nb5–+) 70...hg3 71.Ne4 de4 72.hg3 Kf5 73.Kf2 Ke6 0–1. Hal1958 – Negus, playchess.de, 2005.

7.d3 Nbd7 8.Nbd2 Qc7 (9.Be2 e5=). pcmvr (2410) – iozeph (2505), net–chess.com, 2006.

7.d4 dc4 8.Bc4 0-0 9.0-0 Nbd7 10.Nbd2 (10.Nc3 b5 11.Be2 a5=) 10...Rc8 (10...Nb6 11.Be2=) 11.Qb3 Bb8 12.Rfe1 Qc7 (12...Ne4 13.Ne4 Be4 14.Nd2=) 13.e4+= Bg4 14.e5 (14.Qc2 Rcd8+=) 14...Nd5= 15.h3 Bf3 16.Nf3 (worse is 16.gf3 Qd8 17.Bd5 Qg5 (17...ed5?! 18.f4=) 18.Kh1 cd5–/+ (worse is 18...ed5 19.Qe3 Qf5 20.f4+=); 16.Qf3?! f6+=) 16...N7b6 17.Bd3 h6 18.Rac1 Nf4 19.Bf1 Nbd5 20.Nd2 Qe7 21.Ne4 Ng6 22.Rc2 Qh4 23.Ng3 (23.Nc5 Qe7+=) 23...Kh8 (23...f6 24.b5=) 24.Rec1 (24.Qf3 Bc7+=) 24...f5 (24...f6!?=) 25.b5+/– f4 (25...Nge7!?+/–) 26.Ne4+– f3 27.bc6 (27.g3 Qe7+–) 27...bc6? (27...Qe4 28.cb7 Rc7+=) 28.gf3 (better is 28.g3 Qe7 29.Rc6 Rc6 30.Rc6+–) 28...Ngf4 29.Ng3 (29.Rc6!? Rc6 30.Rc6 Nh3 31.Bh3 Qh3 32.Bc1=) 29...Nh3+= 30.Kg2?? (better is 30.Bh3 Qh3 31.Qd3+= (31.Rc6?? Nf4 32.Rc8 Qg2)) 30...Ndf4 31.Kh2 Nf2 32.Kg1 (32.Bh3 Qh3 33.Kg1 Qg2) 32...Qg3 0–1. futsalboy – lobatov (1680), kurnik, 2011.

7.d4 Ne4 8.Nbd2 Nd7 9.Ne4 de4 10.Ne5 0-0 (10...f6 11.c5 Bc7 12.Nc4=) 11.Qh5 (11.g4!? Bg6 12.h4 Be5 13.de5+=) 11...Qf6?? (better is 11...Ne5 12.de5 Bc7=) 12.Nd7+– (12...Qe7 13.Nf8 Rf8 14.Rd1+–) 1–0. Trkn – guest7514, ICC, 2004.

7.cd5 cd5 8.Be2 Nc6 9.Nc3 a6 10.Rc1 Bc7 (10...d4 11.ed4 0-0 12.Nh4=) 11.b5+= Ne5 12.ba6 ba6 (12...Nf3 13.gf3 ba6 14.Qa4 Nd7 15.e4= (15.Ba6 0-0 16.Nb5 Bb6–/+)) 13.Qa4 Qd7? (better is 13...Kf8=) 14.Ne5+– Be5 15.Bb5! ab5 16.Qa8 Qd8 17.Qd8 Kd8 18.f4 (18.d4 Bb8 19.Nb5 Kd7+–) 18...Bc3 19.Bc3 (19.dc3?! Ke7+=) 19...Bd3? (better is 19...Ke7+–) 20.Ba5 Ke7 21.Rc7 Ke8 (21...Kd6 22.Rf7 Rg8+–) 22.Rc8 Kd7 23.Rh8 1–0. wiking – HokZ157, internet, 2009.

7.Be2 0-0 8.Nh4 (8.c5 Bc7=) 8...Bb1=+ 9.Rb1 Nbd7 (9...dc4 10.Bc4 b5 11.Bd3=+) 10.Qc2 (10.c5 Ne4 11.Nf3 Bc7=) 10...a6 (10...dc4 11.Bc4 Nb6 12.Be2=) 11.Nf3 (11.c5 Ne4 12.Nf3+= (< 12.cd6 Qh4 13.g3 Qh6–/+)) 11...Re8 (11...dc4 12.Bc4 Nb6 13.Be2=) 12.0-0 (12.c5 Bc7+=) 12...Qc7 (12...dc4 13.Bc4 Nb6 14.d3=) 13.c5+= Be7 14.d4 Ne4 15.Bd3 f5 16.Ne5 (16.a4 Rf8+=) 16...Ne5 17.de5 Rf8 18.f3 Ng5 19.Rbc1 (19.Bd4 Nf7 20.f4 a5+=) 19...Rac8 20.Rf2 a5 21.Bd4 ab4 22.ab4 Ra8 23.Rd2 Nf7 24.f4 Ra3 25.Ra1 Ra1 26.Ba1 Ra8 27.Bd4 Nh6 28.Rd1 Bh4 29.Be2 Qd8 30.Rc1 Ng4 31.Bg4 fg4 32.g3 Be7 33.f5 Qd7 34.f6+= Bd8 35.Rf1 Qf7 36.Rf4 h5 37.Rf2 Ra3 38.Bc3 Kh8 39.Rf4 Ra8 40.e4 Qg6 41.Qf2 Kg8 42.ed5 cd5 43.Qe2 Qf7 44.b5 Ra3 45.Qb2 Ra8 46.Qc2 gf6+= 47.ef6 Bc7 48.Rf2 Re8 49.b6+/– Bb8 50.Qd2 Rc8 51.Qg5+/– Kh7 52.Bd4 Rg8 53.Qe3 Rc8 54.Re2 Re8 55.Qd3+/– Kh8 56.Qd2 Kh7 ½–½. Waibel,Ulrich – Beutel,Heinrich, compuserve, 1996.

7.h3 dc4 8.Bc4 b5 9.Be2 +=.

7.h3 Nbd7 8.Nh4 Bg6 (8...Bb1 9.Rb1 a5 10.c5=) 9.Ng6= hg6 10.Nc3 Rc8 (10...dc4 11.Bc4 Nb6 12.Be2=) 11.d3 Qe7 12.g3 Ne5 13.f4 (13.c5 Bc7=) 13...Ned7= 14.c5 Bb8 15.d4 Nh5 (15...g5 16.Qf3=) 16.Qf3+= Nf8 (16...Bc7 17.Bd3+=) 17.b5 Nh7 (17...Bc7 18.Bd3+=) 18.h4 (18.bc6 bc6 19.Rb1 N5f6+/–) 18...N5f6 (18...cb5 19.Bb5 Kd8 20.g4+=) 19.g4 (19.bc6 bc6 20.Qd1 Nf8+=) 19...Nd7 20.bc6 bc6 21.Ba6 Rd8 22.Bb7 (22.Rb1 Nhf8+/–) 22...Nc5+= 23.Bc6 Nd7 24.g5 Qd6 25.Ba4 Nhf8 26.Bc1 (26.Rc1 Qb6 27.Rc2 Bd6+=) 26...Qa6 27.Bb5 (27.Rb1 Rc8 28.Rb3 Qc4+=) 27...Qc8 (27...Qa5!? 28.Bd2 Rc8=) 28.Bd2 a6 29.Ba4 Bd6 30.h5 gh5 31.Rh5 Rh5 32.Qh5 Ng6 33.f5 (33.Bc2 Ndf8+=) 33...ef5= 34.Nd5?? (34.Qh3 Qc4=) 34...Kf8?? (better is 34...Qc4 35.Ba5 Rb8–+) 35.Rc1 Qb7 36.Bc6 Qa7 37.a4 (37.Qh3 Nb8 38.Ba4+=) 37...Nb8+= 38.Nf4?? (better is 38.Nb4+=) 38...Bf4–+ 39.ef4 (39.Kd1–+) 39...Qd4 40.Qh2 (40.Qe2 Nc6 41.Be3 Qa4–+) 40...Nc6 41.Rc6 (41.Rc3 Nb4 42.a5 Nd3 43.Kf1 Rb8–+) 41...Qe4 (41...Qe4 42.Kf1 Qc6–+) 0–1. Chan,Allan (1815) – Jaring,Thorsten (1890), Ruhrgebiet playoff, 2004.

7.Nh4 Bg6 8.Ng6= fg6 (8...hg6 9.cd5 cd5 10.Nc3=) 9.c5 Bc7 10.d4 Nbd7 11.f4 Ne4 12.g3 0-0 13.Nd2 (13.Bd3 Ndf6=) 13...Ndf6 (13...Nd2 14.Qd2 a5 15.b5+=) 14.Bg2 (14.Ne4 Ne4 15.Bd3 Nf6+=) 14...Nd2= 15.Qd2 a6 16.0-0 Qd7 17.Qd3 Qf7 18.a4 Qd7 19.Bc3 Rfb8 20.Rfb1 Kh8 21.Bf3 Kg8 22.Kg2 Kf7 23.h3 Kg8 24.g4 Kf7 25.g5 Ng8 26.b5 ab5 27.ab5 Ra1 28.Ba1 Ra8 29.b6 Ra2 30.Bb2 Bd8 31.Qb3 Ra8 32.Ra1 Qc8 (32...Ra1 33.Ba1 Ne7 34.Qd3+=) 33.Ra7 (33.Ra8 Qa8 34.e4 Ne7+/–) 33...Rb8 (33...Ra7!? 34.ba7 Qa8+=) 34.e4 Ne7 35.Qd3 Qd7 (35...Ra8 36.Ra8 Qa8 37.Qa3 Qa3 38.Ba3 de4 39.Be4+/–) 36.Ra1 Qc8 37.Bc1 Ra8 38.Ra7 (38.Ra8 Qa8 39.Be3 de4 40.Be4 Nd5+=) 38...Rb8 (38...Ra7 39.ba7 Qa8 40.Qa3=) 39.f5 (better is 39.Bg4+/–) 39...de4? (better is 39...gf5 40.ed5 cd5+=) 40.fe6+– Qe6 41.Qe4 Qd7?? (41...Qe4 42.Be4 Nc8+–) 42.Qf4 Qf5 43.Bg4 (worse is 43.Qb8 Qc2 44.Kg3 Qc1 45.Rb7 Qg5 46.Kh2 Qd2 47.Bg2 Qd4+–) 43...Nd5 (43...Qf4 44.Bf4 Bb6 45.cb6 Rd8+–) 44.Bf5 Nf4 45.Bf4 (45.Bf4 gf5 46.Bb8+–) 1–0. Grguric,Zeljko (2190) – Marijanovic,Zvonimir (1850), Bosnjaci op, 2008. (=1.Nf3 d5 2.b4 c6 3.Bb2 Bf5 4.e3 e6 5.a3 Nf6 6.c4 Bd6)

7.Nc3 0-0

8.Nd4 Be4 =+.

8.Nh4 Bg4 9.Be2 (9.f3 Bh5=+) 9...Be2–/+ 10.Qe2 Nbd7 (10...a5 11.0-0=+) 11.cd5 (11.c5 Be5=+) 11...ed5 (11...Nd5 12.Nf3=+) 12.Nf5= Bc7 (12...Ne5 13.0-0=) 13.0-0 Re8 (13...Ne5 14.d3=) 14.f4 Nb6 15.Nd1 (15.d3 Qd7 16.Nd4 Qe7=) 15...Nc4=+ 16.Bc3 Nd6 (16...a5 17.Nb2 ab4 18.ab4 Ra1 19.Ra1 Nb2 20.Bb2 Bf4 21.Qf3=) 17.Nd6 (17.Qd3 Nf5 18.Qf5 Ne4=) 17...Qd6=+ 18.Bd4 (18.Qd3 Ne4=+) 18...b6 (18...Bb6 19.Be5 Qe6 20.Nc3=+) 19.Nc3 a5 (19...a6 20.Rac1 Ne4 21.Qg4+=) 20.b5+= c5 (20...Rac8 21.bc6 Bd8 22.Be5 Qc6 23.Qf3=) 21.Bf6+/– gf6 (21...Qf6 22.Nd5 Qd6 23.Nc7 Qc7 24.f5+=) 22.Qh5 (22.Qg4 Kh8+/–) 22...d4 23.Nd5 Rad8 (23...de3 24.de3 Rac8 25.Rf3+/–) 24.Nc7 Qc7 25.Qh6 (25.Rf3 Qe7+/–) 25...f5 (25...Re6 26.f5 Red6 27.Rf4 Kh8 28.Rh4 Kg8 29.Rg4 Kh8 30.Qg7) 26.Rf3 Re6 27.Qg5 Rg6 28.Qf5 de3 29.Re3 Rd2= 30.Re8 Kg7 31.g4 Qd6 32.Rae1 Qd4 33.R8e3 Qb2 34.Qh5 Rg2–/+ 35.Kh1 R2g4 36.Qe5 Qe5 37.fe5 Kf8 38.Rf3 Re6 39.h3–/+ Rg5 40.Ref1 Ree5 41.Rf7 Kg8 42.Rf8 Kg7 43.R8f7 Kh6 44.h4 Rg6–+ 45.R1f3 Re4 46.R7f4 Rf4–/+ 47.Rf4 Kh5 48.Kh2 Kh6?? 49.a4 Kg7 50.Kh3 Rd6 51.Re4 Kf6 52.Re8 Re6 53.Rc8 Ke5 54.Kg4 Kd5 55.Kf3 Kc4 56.Rc6 Kd5 57.Rc7 h6 58.h5 Kd6 59.Rb7 Kd5 60.Rc7 Rd6 61.Ke3 Rf6 62.Rd7 Ke6 63.Rb7 Kd5 64.Rc7 Ke5 65.Rc8 Kf5 66.Kd3 Rd6 67.Kc3 Ke5 68.Rc7 Kd5 69.Rc8 Ke5 70.Rc7 Kd5 71.Rc8 Ke5 72.Rc7 Kd5 73.Rc8 Ke4 74.Rc6= Ke5 75.Rc7 Rd5 (better is 75...Rf6!?–/+) ½–½. Campos Calvo_Sotelo,Javier (2115) – Klempt,Guenter (2120), It (open) (seniors), 2005.

8.Qb3 Nbd7

9.cd5 ed5 10.Nd4 Bg4 11.f4 (11.f3 Bh5=+) 11...Ne4 12.Ne4 de4 13.Be2 Qh4 14.g3 Qh5 15.Bg4 Qg4 16.Qd1 (16.d3 c5 17.Nc2 Rae8–/+) 16...Qh3–/+ 17.Qe2 a5 (Black fights for the Initiative) 18.Nc2 ab4 19.ab4 (Black creates threats along the open a–file) 19...Ra1 20.Ba1 Ra8 21.Bc3 Ra2 22.Kd1 Qe6 (22...Be7 23.g4–+) 23.Nd4–/+ Qd5 (24.Qg2 Nf6–/+) 0–1. De Visser,Arno – Ganesan,Arasu, corr ICCF TT–4–90–11, 1990.

9.cd5 ed5 10.Be2 Be4 =+.

9.cd5 ed5 10.Be2 Ne5 =+.

9.cd5 ed5 10.Ne2 Qe7 11.Ng3 Bg6 12.Be2 Rfe8 13.0-0 Ne4 14.Ne4 Qe4 (15.Bd4 Bh5=). Hort – Mephisto, (year?).

9.cd5 ed5 10.Ne2 Bg4 11.Ned4 Bf3 (11...a5 12.h3 Bf3 13.Nf3 ab4 14.ab4=+) 12.Nf3 Re8 13.Be2 Be5 (13...c5 14.0-0=) 14.Ne5 Ne5 15.0-0 Qc7 (15...Ne4 16.Be5 Re5 17.d3=) 16.Rac1 Rad8 17.Bd4 b6 18.Rc2 Rc8 19.Rfc1 (White fights for the Initiative) 19...Re6 (19...Neg4 20.f4 Qd7 21.Qb2+/–) 20.f4 Ned7 21.Qa4 Nb8 22.Be5 Qd7 23.Bb5 (23.Bb8 Rb8 24.Rc6 d4+/–) 23...Ree8 (23...a6 24.Ba6 Na6 25.Qa6+–) 24.Bc6 Nc6 25.Rc6 Rc6 26.Qc6 Qd8 (26...Qc6 27.Rc6 Ng4 28.Bd4+–) 27.Qc7 (27.Bf6!? gf6 28.b5 Kg7+–) 27...Qc7 28.Rc7 (28.Bc7?! Rc8 29.Rc3 d4 30.ed4 Nd5=) 28...Ra8 (28...Ng4 29.Bd4+–) 29.Bf6 gf6 30.Kf2 Kg7 31.Ke2 (31...a5 32.b5+–) 1–0. Roggensack Hanspach,Peter – Hasler,Ulrich, corr ICCF TT–4–90, 1991.

7.Nc3 Nbd7

8.c5 Bc7 =.

8.Be2 dc4 9.Bc4 0-0 10.0-0 =+.

8.Be2 dc4 9.Bc4 0-0 10.Be2 =+.

8.Be2 0-0

9.0-0 dc4 10.Bc4 b5 11.Be2 =.

9.0-0 dc4 10.Bc4 Bg4 11.d4 =.

9.0-0 e5 10.d3 (10.cd5 cd5 (10...Nd5? 11.e4+–) 11.Qb3 Be6=) 10...Qe7 11.Rc1 (11.cd5 Nd5 12.Ne4 Bc7=) 11...dc4 12.dc4 e4 (12...Rfd8 13.c5 Bc7 14.Nh4=) 13.Nh4 (13.c5 Bc7 14.Nd4 Qe5=) 13...Be6 (13...Qe5 14.g3 Bh3 15.Ng2=+) 14.g3 (14.Qc2 a5 15.c5 Bc7=+) 14...Ne5 (14...a5!? 15.c5 Be5=+) 15.c5= Bc7 16.Qc2 g5 (16...Bh3 17.Rfd1 Ned7 18.Ng2=) 17.Ne4 (17.Ng2 Nf3 18.Kh1 Bg4=) 17...Ne4 (better is 17...gh4 18.Nf6 Qf6=+) 18.Qe4?? (better is 18.Be5 Be5 19.Qe4+=) 18...f5–/+ 19.Nf5 Bf5 20.Bc4 Kg7 21.Qg2 Kg6 22.e4 Bd7 23.Be2 g4–/+ 24.Rfd1 Nf3 25.Kh1 Be6 26.Rd3 Qf7 27.Rcd1 Bc4?? 28.Rd6= Bd6 29.Rd6 Be6 30.Bf3 Rad8 31.Be2? Rd6–+ 32.cd6 Qf2 33.Bc3 Qe3 (34.d7 Qc3–+) 0–1. Gnininvi,E – Chanoine,G, Bois Colombes, 2005.

9.0-0 Re8 10.h3 (10.c5 Bc7=) 10...h6 (10...dc4 11.Bc4 b5 12.Be2=+) 11.d4 (11.c5 Bb8=) 11...Ne4 (11...dc4 12.Nd2 Bc7 13.b5=) 12.c5 Bc7 13.a4 (13.Ne4 Be4 14.Nd2 Bf5=) 13...b6 (13...Ng5 14.Nh2=) 14.Ne4 Be4 15.Rc1 (15.Qd2 bc5 16.dc5 e5=) 15...bc5 16.bc5 (16.dc5 Rb8 17.Qd4 e5=+) 16...Rb8=+ 17.Bc3 (17.Qd2 Qf6=+) 17...Ba5 (17...Qf6 18.Qe1=+) 18.Qd2= Bc3 19.Qc3 Qc7 20.Nd2 Bh7 21.Nb3 (21.f4 a5=+) 21...Nf6 (21...e5 22.de5 Re5 23.Nd4=) 22.Ba6 (22.Nd2 e5=) 22...Ne4 23.Qa5 Re7 (23...Qe7 24.Rb1=) 24.Qc7 (24.Rb1 Nf6 25.Qc7 Rc7=) 24...Rc7 25.Na5 Nd2 26.Rfe1 Rb2 27.f3 Nb3 28.Nb3 Rb3 29.Ra1 Rb4 30.Re2+= Rd7 31.Raa2 Rd8 32.Kf2 Rdb8 33.Kg3 Kf8 34.h4 Bb1 35.Ra1 Rb3 36.Kf4 Bd3 37.Bd3= Rd3 38.Raa2 Rdb3 39.g4 Ke7 40.h5 f6 41.Kg3 R3b4 42.Kf4 Kf7=+ 43.Red2 Rc4 44.e4 de4=+ 45.fe4 Rbb4 46.Rab2 Ke7 47.Ke3 Rc3 48.Kf4 Rcc4 49.Ke3 (49.Rb4 Rb4 50.a5 Ra4=) ½–½. Nilsson,Jonas (1995) – Christensen,Christoffer Ellegaard, Esbjerg DEN, 2007.

9.c5 Bc7 =.

9.cd5 ed5 10.0-0 h6 (10...Bg4 11.h3 Bf3 12.Bf3=) 11.Rc1 a6 12.d3 Qe7 13.d4 (13.Qd2 Bg6=) 13...Ne4 (13...a5 14.b5+=) 14.Na4 a5 15.Nc5 ab4 (worse is 15...Bc5 16.bc5 Qf6 17.Ba1=) 16.ab4 Ndf6 17.h3 Ra2 18.Qb3 Rfa8 19.Ra1 Ra1 (worse is 19...Bc5 20.Ra2 Ra2 21.bc5+=) 20.Ra1 Ra1 21.Ba1 b6 (21...Kh7 22.Nh4 Qc7 23.Bc3= (23.Nf5?? Bh2 24.Kf1 Nd2 25.Ke1 Nb3 26.Nb3 Ne4–+)) 22.Nd3 (22.Ne4 Be4 23.Ne5 A) 23...Bb4?? 24.Nc6 Qc7 25.Nb4+– (25.Qb4?! Qc6 26.Bb2 Qc2=); B) 23...Qc7=) 22...Ng3 23.fg3?? (better is 23.Bd1 Qb7 24.b5=) 23...Qe3–+ 24.Kf1 (24.Kh2 Qe2 25.Nde5–+) 24...Bg3 (24...Ne4 25.Qa2 Ng3 26.Ke1 Bd3–+ (26...Qe2?! 27.Qe2 Ne2 28.Ke2+=; 26...Ne2?! 27.Qe2 Qd3 28.Qd3 Bd3 29.Bc3–+)) 25.Nfe5?? (better is 25.Qc2=) 25...Ne4 26.Bc3 (26.Qd1 Bf2 27.Nf2 Qf2) 26...Be5 (26...Bf2 27.Nf2 Qf2) 27.Qb2–+ Ng3 28.Ke1 0–1. Ambrosi,Arcangelo (1855) – Corso,Roberto (1705), Lucca op, 2000.

9.Nh4 dc4 10.Nf5 ef5 11.Bc4 =.

9.Nh4 Bg6 10.Ng6 fg6 11.cd5 (11.0-0 dc4 12.Bc4 Qe7=) 11...ed5= 12.0-0 Qe7 (12...b5 13.f4=) 13.f4 (13.Qc2 Nb6=) 13...a5 (13...g5 14.fg5 Qe5 15.g3 Qg5 16.Rc1=) 14.b5 g5 15.g3 (15.fg5 Qe5 16.g3 Qg5=) 15...gf4 16.ef4 Nc5 17.Re1 Rfe8 (17...Rae8 18.Rc1=) 18.Qc2 (18.Na4 Nfe4=) 18...Kh8 (18...Ne6 19.Bd3 Qc7 20.Kg2=) 19.Nd1 (19.Kg2 d4 20.Na2 Qe2 21.Re2 Re2 22.Kh1 Nfe4–/+) 19...a4 20.Ra2 (20.bc6 Nb3 21.Ra2 Bc5 22.Kg2 bc6+=) 20...Nb3+= 21.bc6 Bc5 22.d4 (better is 22.Kg2!? bc6 23.d3+=) 22...Nd4 23.Bd4 Bd4 24.Kg2 bc6 25.Rf1 (25.Qc6 Bc5–/+) 25...c5 26.Nc3 (26.Bf3 Ne4–+) 26...Bc3 27.Qc3 d4 (27...Qe3 28.Qe3 Re3 29.Rd1–+) 28.Qc4 Qe6 (28...Qb7 29.Bf3 Qb3 30.Rc1–+) 29.Qe6–/+ Re6 30.Rc1 Rc8 (30...Ra5 31.Rb1–/+) 31.Rc4 (31.Bb5!?–/+) 31...Nd5–+ 32.Ra4 (better is 32.Bg4 Ree8 33.Bc8 Ne3 34.Kf2 Nc4 35.Bd7–+) 32...Rce8?? (better is 32...Nc3!? 33.Bg4 A) 33...Na4?! 34.Be6 Rd8 35.Re2+=; B) 33...Na2 34.Be6 Nc3 35.Ra5+/– (worse is 35.Bc8 Na4 36.Ba6 Nc3+=); C) 33...Rec6 34.Bc8 Rc8 (34...Na4?! 35.Bd7 Ra6 36.Bb5+=; 34...Na2 35.Bb7 g5 36.Bc6+–) 35.Rd4 cd4–+) 33.Bg4 (33.Bc4 Ne3 34.Kf3 R6e7+= (worse is 34...Nc4 35.Rc4 d3 36.Rd2+=)) 33...Re1 (33...Rg6 34.Bd7 Rd8 35.Ra5–/+) 34.Rd2 Ne3 35.Kh3 Ng4 (35...h6 36.Ra7 Rd8 37.Re7–/+) 36.Kg4+= Rc1 37.Ra7 Rd8 38.a4 (38.Kf3 h6+=) 38...g6 (better is 38...c4!? 39.Kf3 d3–/+) 39.Kg5 (39.Re2 Rh1 40.Kh3 d3=) 39...d3+= 40.Rb2?? (40.h3 Rd5 41.Kf6 Rf5 42.Ke6 c4+=) 40...Rd5?? (better is 40...d2 41.Rd2 Rd2 42.Ra8 Kg7 43.Ra7 Kf8 44.Rh7 Ra1–+) 41.Kf6 (41.Kh4 Rd8 42.Rbb7 d2=) 41...Rf5+= 42.Ke6 Threatening mate: Rb8 42...Re1 43.Kd6 Re8 44.g4 (44.Rd2 Rd8 45.Ke7 Rdf8–+) 44...Rd8 45.Kc6? (better is 45.Ke6 Rf4 46.Rbb7–/+) 45...Rf6–+ 46.Kc5 d2 (46...Rf4?! 47.Rbb7 h6 48.Rh7 Kg8 49.a5=) 47.Rd2 Rd2 48.Ra8 Kg7 49.Ra7 Rf7 (49...Rf7 50.Rf7 Kf7–+; 49...Kf8 50.Rh7 Ra2 51.Kb5–+) 0–1. Skulsky,I – Basanta,G, Vancouver, 1987.

7.c5 Bc7

8.Nc3 0-0 9.d4 Nbd7 10.Bd3 Bd3 11.Qd3 b6 (11...e5 12.Qe2=+) 12.0-0= bc5 13.bc5 Rb8 14.Rab1 e5 15.Ne5 Ne5 16.de5 Be5 17.Ba1 (17.f4 Bc3 18.Bc3=+) 17...Qa5 (better 17...Qe7–/+) 18.Rfc1?? (better 18.Nd5 Rb1 19.Nf6 Bf6 20.Rb1 Ba1 21.Ra1 Qc5 22.Rb1+=) 18...Qa3–+ (18...Qc5?! 19.Nd5 Bh2 20.Kh2 Qd5 21.Qd5 cd5 22.Bd4+=) 19.Rb8?? (19.f4 Bc7–+) 19...Rb8 (better 19...Qc1 20.Nd1 Bb8 (20...Ba1?! 21.Rb1 Qc5 22.Ra1–+) 21.Bf6 gf6–+) 20.Qc2 (better 20.Qd1 Bc7 21.g3–/+) 20...Rb3?? (better 20...Qc5 21.Qd1 Qe7–+) 21.Nb1+– Ba1?? (better 21...Qa1 22.Qb3 g6+=) 22.Na3+– Ra3 23.h3 (23.Rb1 Nd7 24.Qc1 Rc3+–) 23...Ne4 (23...g6 24.Rb1 Ra5+–) 24.Ra1 (better 24.Rb1 Be5 25.f4 Re3 26.fe5+–) 24...Ra1 25.Kh2 h6? (better 25...Ra5!? 26.Qb2 h6+–) 26.f3+– Nf6 (26...Ng5 27.Qb2 Ra5 28.Qb8 Kh7 29.Qc7+–) 27.Qb2 Ra6 (27...Ra5 28.Qb8 Kh7+–) 28.Qb7 Ra2 (28...Ra3 29.Qc6 Re3+–) 29.Qc6 (better 29.Qb8 Kh7 30.Qb1 Kg8 31.Qa2 a5+–) 29...Re2 (29...Kh7 30.Qb7 Ra3 31.c6 Re3 32.c7+–) 30.e4! de4 (30...Kh7 31.ed5 Re5 32.d6+–) 31.fe4 (better 31.Qc8 Kh7 32.c6 Rc2+–) 31...Re4 32.Qc8 Kh7 (32...Ne8 33.Qb7 Re5+–) 33.c6 Rc4 34.c7 Nd5 (34...Rc5 35.Qd8 Rc3+–) 35.Qb7 (35.Qb7 Nc7 36.Qb1 Kg8 37.Qb8 Kh7 38.Qb3+–) 1–0. Fettito – mehdizahedi, lichess.org, 2018.

8.Be2 b6 9.Nh4 =.

8.Be2 Nbd7 9.0-0 h6 10.h3 Qe7 11.d3 Nh7 12.Nbd2 (worse is 12.Bg7 Rg8 13.Bc3 Bh3–/+) 12...0-0 13.e4 de4 14.Ne4 Nhf6 15.Nf6 Nf6 16.Ne5 Rad8 17.Qb3 Be5 18.Be5 Nd5 19.Bd6 Rd6 20.cd6 Qd6 21.Rad1 Qe5 22.Rfe1 Qf6 23.d4 Qg5 24.Bf3 Nc7 25.Qe3 Qe3 26.Re3 Nb5 27.a4 Nd6 28.Rc1 Bg6 29.g4 Re8 30.Kg2 f6 31.h4 f5 32.h5 Bh7 33.Rce1 Kf7 34.gf5 Bf5 35.Kg3 Nc4 36.Rc3 Nb2 37.a5 Nd3 38.Rd3?? (better is 38.Rd1 e5 39.de5 (39.Rcd3?! Bd3 40.de5 Bb5+/–; 39.Rdd3?! Bd3 40.de5 Rd8+=) 39...Ne5 40.a6 ba6 41.Bc6 Nc6 42.Rc6+–) 38…Bd3+= ½–½. Hal1958 – Peondedama, playchess.de, 2004.

8.Be2 Nbd7 9.Nc3 e5 10.d3 (10.0-0 0-0=) 10...0-0 11.Nd2 (11.0-0 Qe7=) 11...a5 (11...b6 12.cb6 ab6 13.0-0=+) 12.e4 (12.0-0 b5=) 12...Bg6 (12...Be6 13.0-0=+) 13.Bg4 (13.0-0 b6=+) 13...ab4–/+ 14.ab4 Ra1 15.Ba1 Ng4 (15...d4 16.Ncb1–/+) 16.Qg4=+ f5 17.Qd1 (17.Qh3 fe4 18.de4 d4–/+) 17...fe4–/+ 18.de4 d4 19.Ne2 (19.Na4 Rf4 20.Qc2 Qg5–/+) 19...b6 20.cb6 Bd6 21.0-0 (21.f4 Qb6 (21...Nb6?! 22.fe5 Be5 23.Nf3=) 22.fe5 Ne5 23.Qb3 Bf7–+) 21...Qb6–+ (21...Nb6 22.f4 Bb4 23.Qb3 Nd5 24.ed5 Bd2 25.dc6 Kh8 26.Qd1 Be3 27.Kh1–/+) 22.Qa4 (22.Nc4 Qb4 23.Nd6 Qd6–+) 22…Bb4 (23.Rb1 Rb8–+ (23...Bd2 24.Rb6 Nb6 25.Qb3 Kh8 26.Qb6+–)) 0–1. Woda,Janusz – Rudbeck,Joergen, corr 3GMM–51, 1997.

8.Be2 Nbd7 9.Nd4 Bg6 =.

8.Be2 h6 9.0-0 Nbd7 10.d4 g5 11.Ne5 h5 12.Bd3 Bd3 13.Qd3 Ng4 14.f4 gf4 15.ef4 Qh4 16.Nf3 Qf6 17.Ne5 Rg8 18.Nd2 Qg7 19.Qe2 Nh6 20.Ndf3 Nf5 21.Rf2 Ne5 (21...Nf8 22.b5 f6 23.bc6 fe5 24.cb7+=) 22.de5 (22.fe5 Qg4+=) 22...Qg4= 23.Qd2 Bd8 24.Nd4 Bh4 25.Re2 Be7 26.Rf2 Kd7 (26...0-0-0 27.Qe2=) 27.Rc1 a6 28.a4 Qg6 29.Nf5 Qf5 30.Bd4 Rg4 31.Qb2 Bh4 32.Rd2 Rag8 (32...Qf4 33.Rf1 Qe4 34.Rf7 Ke8 35.Rf1=) 33.b5 Bd8 (33...Rf4? 34.bc6 bc6 35.Qb7 Ke8 36.Qc8 (36.Qc6?! Kf8 37.Be3 Bg5+=) 36...Bd8 37.Qc6 Kf8 38.Qa8+/- (38.Qa6?! Rd4 39.Rd4 Qf3 40.Qd6 Ke8 41.Qc6 Kf8 42.Qd6 Ke8 43.Qc6 Kf8 44.Qd6=)) 34.Rf1 ab5 35.ab5 Bc7 (35...Rf4 36.Rf4 Qf4 37.Rf2=) 36.Qa1 (36.b6 Bd8+=) 36...h4 (36...cb5 37.Qb2 Rf4 38.Qb5 Ke7 39.Re1=+) 37.b6 Bd8 38.Qa7 Ke8 39.h3 Rg3 40.Qb7 Qe4 41.Qc6 Kf8 42.Qd6 Kg7 43.b7?? (43.Rfd1 Kh7 44.Kf1 Rg2 45.Rg2 Rg2 46.Be3 Qf3 47.Ke1 Qe2) 43…Kh7 (43...Kh7 44.Kh1 Rg2 45.Rf3 Qe1 46.Rf1 Qf1 47.Bg1 Qg1; 43...Kh8 44.Qd7 Rg2 45.Rg2 Qg2) 0-1. alekhinebattery (2300) - kingchecker9 (2285), gameknot.com, 2020.

8.Be2 h6 9.0-0 Bg4=.

8.Be2 h6 9.a4 0-0 10.0-0 Nbd7 11.d4 Ne4 12.Nbd2 Qf6 13.Ra2 a6 14.Qe1 Rfe8 15.Nb3 g5 (15...Re7 16.Nbd2=) 16.Qa1 (16.Nfd2 Nd2 17.Nd2 e5+=) 16...g4= 17.Ne5 Qh4 (17...Ne5 18.de5 Qh4 19.Qd1=) 18.Qe1 (18.g3!? Qe7 19.Ng4+/–) 18...Ne5 19.de5 f6 20.g3 Qh3 (20...Qg5 21.ef6 e5 22.f4 gf3 23.f7 Kf7 24.Bf3+=) 21.ef6 h5 0–1. Cirulis,Ilmars (1970) – Mevel,Alberic (1900), FICGS, 2016.

7.d3 0-0

8.c5 Be7 =.

8.Nbd2 a5!? 9.c5 Bc7=.

8.Nbd2 c5 9.bc5= Bc5 10.Be2 Nc6 11.Bf6 (11.0-0 Qe7=) 11...Qf6=+ 12.d4 Be7 13.0-0 Rac8 14.Qa4 (14.Qb3 dc4 15.Bc4 Bd6=) 14...Rfd8 15.Rfc1 h6 16.h3 (16.g3 Rc7=+) 16...a6 (16...Rc7 17.Kh1=+) 17.cd5 (17.Qb3 Rc7=) 17...ed5 (17...Rd5? 18.e4 Be4 19.Ne4+-) 18.Nb3? (better 18.Qb3 b5 19.Qd1=+) 18...b5-+ 19.Qa6 Nd4 20.Qf6 Ne2 (20...gf6?? 21.Nfd4 Be4 22.Nc6 Rc6 23.Rc6+-) 21.Kf1 Bf6 (21...gf6?! 22.Ke2 Bd7 23.Rd1=) 22.Ke2 Ba1 23.Ra1 Rc2 24.Ke1 Bd3 25.Nfd4 Rb2 26.Nc1 (26.a4 ba4 27.Ra4 Rc8-+) 26...Bc4 27.a4 ba4 (27...b4 28.a5-+) 28.Ra4 Rb1 (28...Rd6 29.Ra1-+) 29.Kd2 Rdb8 30.Nd3 Bd3 31.Kd3 R8b2 (better 31...R1b2 32.Nc2 Rc8-+) 32.Nc6? (32.Nc2-+) 32...Rd1 (32...Rf2?! 33.Ne7 Kh7 34.Nd5 Rd1 35.Ke4 Rg2 36.Ra7-+) 33.Kc3 Rf2 34.Ra8 (34.Kb4 Rc2 35.Ne7 Kh7-+) 34...Kh7 35.Ra7 (35.Nd4 Rg2 36.h4 Rh2-+) 35...Kg6 (better 35...Rc1 36.Kd4 Rc6 37.Kd5 Rcf6-+) 36.Ne5 Kh7 37.Nf7?? (37.Nc6 Rc1 38.Kd4 Rc6 39.Kd5-+) 37...Rg2-+ 38.Ra8 (38.Nd6 Re2 39.Nf5 Kg6 40.Ne7 Kg5-+) 38...Re1 (38...Rg3 39.Re8-+) 39.Kd4 (39.Re8 Rh2-+) 39...Rd2 40.Kc5 (40.Kc3 Rh2 41.Re8 Rh3-+) 40...Re3 41.Rh8 (41.h4 Rh3-+) 41...Kg6 42.Nd6 (42.Rf8 Rh3 43.Ne5 Kh5-+) 42...Rc3 43.Kb6 (43.Kb4 Rh3 44.Rf8-+) 43...Rb2 44.Nb5 Rcb3 45.Kc5 (45.Kc6 Rb5 46.Re8 R2b3-+) 45...Rb5 46.Kd6 Rb6 (46...d4!? 47.Rf8-+) 47.Ke5 d4! 48.Kd4 (48.Rd8 Re2 49.Kd5 Ree6 50.Kd4 Rbd6 51.Rd6 Rd6 52.Ke4 Rc6-+) 48...R2b5 (48...Rb8 49.Kc3-+) 49.Kc4 (49.Re8 Rb3-+) 49...Rb1 (49...Rb8 50.Rg8-+) 50.Kc5 (50.Ra8 R6b3-+) 50...R6b2 (50...Rb8 51.Rb8 Rb8 52.Kd5-+) 51.Re8 (51.Ra8 Rb3 52.h4 Rb5 53.Kd6 Rd1 54.Kc6 Rb4-+) 51...Rd2 (better 51...Rc2!? 52.Kd4 Rd1 53.Ke3 Re1 54.Kd3 Re8 55.Kc2-+) 52.Re6 (52.Kc4 Rc1 53.Kb3 Rd3 54.Kb2 Rh1-+) 52...Kf7 (better 52...Kf5 53.Re3 Rc1 54.Kb4 Rb2 55.Ka3-+) 53.Re4 (53.Re3 Rc1 54.Kb4 Rb2 55.Ka3 Rb7-+) 53...Rc1 54.Kb4 Rb2 55.Ka3 Rb7 56.Rf4 Kg6 57.Rg4 (57.Ka2 Rc2 58.Ka1 Rc3-+) 57...Kh7 58.Rb4 Rb4 59.Kb4 Rh1 0-1. Shuvalov,Evgenij (2180) - Baraeva,Marina (2225), Titled Tuesday intern op, 2022.

8.Be2 dc4 9.dc4 c5 10.Nc3 =.

8.Be2 h6 9.Nbd2 (9.c5 Be7=) 9...Bh7 (9...Nbd7 10.c5 Bc7 11.Nh4=) 10.h3 (10.c5 Bc7=) 10...Nbd7= 11.g4 (11.0-0 Qe7=) 11...a5 (11...c5 12.b5=+) 12.c5= Bc7 (12...Be7 13.g5 hg5 14.Ng5 ab4 15.Nh7 Kh7 16.ab4 Ra1 17.Qa1=) 13.g5 hg5 14.Ng5 Bg6 (14...Bf5 15.e4 Bg6 16.Rg1 ab4 17.ab4=) 15.Rg1 (15.Ndf3 ab4 16.ab4 Qe7=) 15...Qe7 (15...Re8 16.Ndf3=) 16.h4 (better is 16.Ndf3=) 16...Be5 (16...Ne5 17.Nb3 ab4 18.ab4 Ra1 19.Ba1 Bf5+=) 17.d4 (17.Be5 Ne5 18.d4 Nd3 19.Bd3 Bd3+/–) 17...Bc7 18.h5 Bf5 19.f4 (19.h6 g6+/–) 19...ab4 (19...Kh8 20.b5+=) 20.ab4 (20.h6 ba3 21.hg7 Rfb8 22.Ba3 Ra7+=) 20...Nh7 (20...Kh8 21.b5=) 21.Ndf3 Ndf6 22.Nh7 Nh7 23.h6+= g6 24.Rh1 Kh8 25.Kf2 g5 26.Ng5 Ng5 27.fg5 Qg5 28.Qg1= Qf6 29.Qg7 Qg7–/+ 30.hg7 Kg7 31.b5 cb5 32.Bb5 Rh8 33.Rag1 Kf6 34.Rh8 Rh8 35.Bc3 Be4 36.Be2 Rh2 37.Ke1 Rh1 38.Rh1 Bh1 39.Kd2 Kg5 40.Bb5 Be4 41.Bd7 Kg4 42.Ke2 Bf5 43.Bc8 b6 44.c6 f6 45.Ba6 e5 46.Bb5 Bd6 47.Ba4 Kg5 48.Bb5 Be4 49.Ba4 Kg6 50.de5 fe5 51.Bb4?? Bc7 52.Kd2 Kf7 53.Kc3 Ke8 54.Bb5 Kd8 55.Be2 Kc8 56.Ba6=+ Kb8 57.Bb5 Bg6 58.Be7 Ka7 59.Bf8 Bf5 60.Be7=+ Bc8 61.Bf1 Be6 62.Bb5 Bf7 63.Kd3 Bh5 64.Kc3 Bd1 65.Kd2 (65.Bf6 Bf3=+) ½–½. Tumurbator,Purev (2375) – Tringov,Georgi P (2480), Malta ol (Men), 1980.

8.Nh4 Bg4!? 9.f3 Bh5 +=.

8.Nh4 Bg6 9.Be2 e5 10.Nd2 Re8 (10...Nbd7 11.0-0=) 11.Ng6 hg6 12.0-0 e4 (12...Nbd7 13.Qc2+=) 13.cd5 ed3 14.Bd3 Nd5 15.Qc2 Nd7 16.Nc4 Ne5 17.Ne5 (17.Nd6 Qd6 18.Be2 a5+/–) 17...Be5+= 18.Rad1 Qf6 (18...Bb2 19.Qb2 Qf6 20.Qf6 gf6 21.Rd2+=) 19.Be5 Qe5 20.Bc4 Rad8 21.Qb3 Re7 22.Rfe1 Red7 23.e4 Nc3? (better is 23...b5 24.ed5 bc4 25.Qc4 cd5+=) 24.Bf7!+– Kh7 (24...Rf7 25.Rd8 Double attack (25.Rd8 Pinning; 25.Rd8 Deflection; 25.Rd8 Decoy; 25.Rd8 Overloading)) 25.Rd7 Rd7 26.Bc4 Qd4 27.Rc1 b5 28.Be6?? (better is 28.Qc3 bc4 29.Qh3 (29.Qc4?? Qc4 30.Rf1 Qe4–+) 29...Kg8 30.Qe6 Rf7 31.Rf1+–) 28...Rd6 (28...Qd2 29.Rf1 Rd3–/+) 29.h3?? (better is 29.Bf7+/–) 29...Ne2–+ 30.Kh1 (30.Kh2 Nc1 31.Bg8 Kh8 32.Qc2–+) 30...Nc1 31.Bg8 Kh6 (better is 31...Kh8 32.Qb1 Qc3–+) 32.Qf7 (32.Qg3 Qf6 33.e5 Rd1 34.Kh2–+) 32...Qf6 0–1. Zak,Pawel – Grzesiak,Filip (1835), Polanica Zdroj op–C, 2006.

7.d4 0-0

8.c5 Bc7 =.

8.c5 Be7 =.

8.Nbd2 a5 9.b5 dc4 10.Nc4 Bc7 =.

8.Nbd2 a5 9.c5 Bc7 10.b5 cb5 11.Bb5 Nc6 =.

8.Nbd2 a5 9.c5 Bc7 10.Nh4 Bg4+= 11.Be2 (11.Qa4 Nfd7 12.Nhf3 b5 13.cb6 Nb6+=) 11...Be2 12.Qe2 ab4 13.ab4 Ra1 14.Ba1 Nbd7 (14...Re8 15.0-0=) 15.0-0= Qe7 16.Nhf3 (16.b5 Ra8=) 16...Ra8 (16...b6 17.Rc1=) 17.Bc3 (17.b5 e5 18.Ne5 Ne5 19.de5 Nd7=) 17...Ra3 (17...Ra2 18.Ra1 Ra1 19.Ba1=) 18.Rc1 (18.Nb1 Ra4=) 18...Ra2 (18...b5 19.cb6 Nb6 20.b5 cb5 21.Qb5=) 19.Qd1 (19.Qd3 b5=) 19...Qf8 (19...b6 20.b5 bc5 21.bc6=) 20.Qb3 (20.Ra1 Ra1 21.Qa1 Qb8=) 20...Qa8 21.Ra1?? (better is 21.b5=) 21...Ra1–+ 22.Ba1 Qa1 (22...Qa1 23.Qb1 Qb1 24.Nb1 e5–+) 0–1. Pierrr – Wall,Bill, internet, 1998.

8.Nbd2 a5 9.c5 Be7 10.b5 =.

8.Nbd2 Ne4 9.Be2 =.

8.Nbd2 Be7 9.Nh4 Bg4 10.Qc2 =.

8.Bd3 Bd3 9.Qd3 Nbd7 (9...dc4 10.Qc4 a6 11.0-0=) 10.Nbd2 (10.c5 Bc7=) 10...a5 (10...Bc7 11.0-0=) 11.b5 (11.c5 Be7=) 11...cb5 12.c5 Be7 13.Qb5 Qc7 =. Olej,Emil(+) – Kern,Ma, corr 3GMM–57, 1995.

8.cd5 cd5 9.Nc3 a6 (9...a5 10.b5=+) 10.Bd3 Bg4 (10...Bd3 11.Qd3 Nbd7 12.0-0=+) 11.h3= Bh5 12.g4 (12.0-0 Nc6=) 12...Bg6=+ 13.Bg6 fg6 14.Qb3 Qe7 15.Rc1 Nc6 16.Na4? (16.Qd1 Nd7 17.Qe2 Rac8=+) 16...Ng4! 17.hg4 Rf3 18.Nc5 Raf8 19.Rc2 Qf7 20.Nd3 Qf6 21.b5 ab5 (21...Na5 22.Qa4 Bg3 23.Re2 Re3 24.Re3 Bf2 25.Kd1 Be3 26.Re1–+) 22.Qb5 Qf7 (better is 22...Qg5–+) 23.Ne5? (better is 23.Bc1–/+) 23...Be5–+ 24.de5 Rf2 25.Rf2 (25.Rh2 Rf1 26.Kd2–+) 25…Qf2 (26.Kd1 Qf3 27.Kc2 Qh1–+) 0–1. mgriffin (1620) – ambarish, net–chess.com, 2001.

8.cd5 ed5 9.Bd3 Bd3 10.Qd3 =+.

8.Nbd2 Nbd7

9.c5 Bc7 10.Be2 =.

9.c5 Be7 10.Be2 Qc7 (10...Bg4 11.0-0=) 11.Nh4 Be4 12.0-0 h6 13.Nhf3 Bf5 14.Rc1 (14.Qb3 b6=) 14...a6 15.a4 White plans b5 15...b6 16.b5 (16.cb6 Qb6 17.Bc3 Rfb8=) 16...bc5 (16...ab5 17.ab5 Rfc8 18.Ne5 cb5 19.c6 Ne5 20.de5+=) 17.bc6 (17.dc5 ab5 (worse is 17...Bc5 18.Bf6 ab5 19.Bd4+/–) 18.ab5 Ra2 19.Bf6 Bf6=) 17...Qc6 (17...Rfb8 18.Ba3 Qc6 19.Bc5 Bc5 20.dc5+=) 18.dc5 Bc5 (18...Nc5 19.Bf6 gf6 20.Nd4 Qa4 21.Nf5 ef5 22.Nf3+=) 19.Nd4 (better is 19.Bf6!? Nf6 20.Nb3+=) 19...Qb6 (19...Qb7 20.N2b3 Bd4 21.Bd4–/+) 20.Nf5 (20.N2b3 Bd4 21.Bd4 Qd6+=) 20...Qb2–/+ (20...ef5?! 21.Nb3 Bd6 22.Bd4=) 21.Ng3 (21.Nb3 Rfc8 22.Nc5 Rc5–/+ (worse is 22...ef5 23.Nd7 Nd7 24.Rc8 Rc8 25.Ba6+=)) 21...Rfc8 (21...Rfb8 22.Rb1 Qc3 23.Rb8 Nb8 24.Qc1–/+) 22.Rb1 (22.Nb3 Qa3 23.Nc5 Nc5–/+) 22...Qa3 23.Ra1 (23.e4 Ne5–/+) 23...Qb4 24.Nb3 (24.Rb1 Qa5–+) 24...Bd6–+ 25.Qd4?? (better is 25.Nc1–+) 25...Qb3 0–1. Pierrr – Wall,Bill, internet, 1998.

9.Be2 Ne4 10.0-0 Qf6 11.Rc1 Qh6 (11...a5 12.b5=+) 12.h3 Ndf6 13.Ne4 Ne4 14.c5 Bc7 15.a4 a6 (15...Ng5 16.Ng5 Qg5 17.f4=) 16.Bd3 f6 17.Re1 g5 (17...Rfe8 18.Qe2=) 18.Be4 (18.Qc2 Qh5 19.Nd2 Qg6=) 18...Be4= 19.Nd2 Bf5 20.Nf1 Qh4 Black prepares g4 21.Qb3 Rf7 22.b5 (22.f3 Bg6=) 22...ab5 23.ab5 g4 24.b6 Bb8 25.hg4 Qg4 26.f3 Qg6 27.Red1 h5 28.Rd2 Rg7 29.Re1 (29.Rf2 Kf7-/+) 29...Kf7-/+ 30.Ra1 Ra1 31.Ba1 h4 32.Qa4 (32.Qa3 Rg8 33.f4 Be4-/+) 32...Rg8 33.Qd1 Ke8 34.Rf2 Kd8 35.Nh2 Kc8 36.Bc3 Qg5 0-1. DaveMC (2345) – Mely, ChessWorld.net, 2003.

9.Be2 Ne4 10.0-0 Qf6 11.Re1 (11.Ne4 Be4 12.Nd2 Bf5=) 11...Qh6 12.Nf1 (12.Rc1 Rad8=) 12...Rad8 (12...dc4 13.Bc4 a5 14.Qb3=+) 13.Qb3 (13.c5 Bc7=) 13...g5 (13...dc4 14.Bc4 Bg4 15.Ne5 Ne5 16.de5=+) 14.Bd3 (14.c5 Bc7=) 14...Ndf6 (14...g4 15.Be4 Be4 16.N3d2=) 15.cd5 (15.c5 Bc7+=) 15...cd5 16.Ne5 g4 17.Rac1 (17.Rec1 Rc8=) 17...Qg5 (17...Rc8 18.Rc2=) 18.Re2 h5 (18...Nh5 19.Be4 Be4 20.Nd2=) 19.Kh1 (19.Qa4 a6+=) 19...Qh4 20.Rcc2 g3 (20...Rc8 21.Kg1+=) 21.Nf3+/– (< 21.Ng3 Be5 22.de5 Ng4–/+) 21...Qg4 22.hg3 (better is 22.Ng3 Ng3 23.hg3+/–) 22...Nf2? (better is 22...Rc8!?+/–) 23.Rf2+– Bd3 24.Qd3 Ne4 25.Rfe2 Bg3 26.Ng3 (better is 26.Qb5!? b6 27.Qa6+–) 26...Ng3+/– 27.Kg1 Ne2+= 28.Re2 Rc8 29.e4 f6? 30.Re3 Rc7+/– 31.Ne5 fe5? 32.Rg3+– de4? 33.Rg4 hg4 34.Qe4 (34...Rf5 35.de5+–) 1–0. Alekseyev,V – Skytte,R, Tula, 2000.

9.Be2 Qe7

10.0-0 a5 11.b5 A) 11...dc4 12.bc6 (12.Nc4 cb5 13.Nd6 Qd6 14.Bb5 Rfc8 15.a4 Be4 16.Ng5 Bc2 17.Qf3 h6 18.Nh3) 12...bc6 13.Nc4 Rfb8 14.Bd3 h6 15.Rb1 Rb7 16.Nfe5 Rc8 17.Bf5 ef5 18.Qc2; B) 11...Bc7 12.c5 (12.Nh4 cb5 13.Nf5 ef5 14.cb5 Bd6 15.Qb3 Rac8 16.Rac1 f4 17.g3 a4 18.Qd3; 12.Rc1 dc4 13.Rc4 Rab8 14.Rc1 h6 15.Nh4 Bh7 16.g3 Rfc8 17.Nhf3 Bf5 18.Qb3; 12.cd5 ed5 13.Rc1 Rab8 14.h3 Rfc8 15.Qb3 h6 16.a4 Ne4 17.Ba3 Nd2 18.Nd2) 12...cb5 13.Bb5 Ne4 14.Ne4 de4 15.Nd2 Nf6 16.Nc4 h6 17.Qe2 a4 18.Rac1; C) 11...h6 12.c5 (12.Nh4 Bh7 13.c5 Bc7 14.Qa4 Ne4 15.Nhf3 Ndf6 16.bc6 Rab8 17.Ra2 bc6 18.Ne4) 12...Bc7 13.Qa4 cb5 14.Qb5 Ra7 15.Bc3 Rd8 16.Nh4 Bh7 17.h3 Nb8 18.Rfc1; D) 11...cb5 12.c5 Bc7 13.Bb5 Ne4 14.Ne4 de4 15.Nd2 Nf6 16.Nc4 h6 17.Qe2 a4 18.Rad1; E) 11...Ne4 12.c5 (12.Ne4 de4 13.c5 Bc5 14.bc6 ef3 15.Bf3 bc6 16.dc5 Nc5 17.Bd4 Rab8 18.g4) 12...Bc7 13.b6 Bb8 14.Ne4 de4 15.Nd2 Rd8 16.Qc2 e5 17.h3 h6 18.Rab1.

10.0-0 a5 11.c5 Bc7 12.b5 (12.Nh4 ab4 13.ab4 Be4 14.f4 b6 15.b5 cb5 16.c6 Qb4 17.Qc1 Ra1 18.Ba1) 12...cb5 13.Bb5 Ne4 14.Ne4 de4 15.Nd2 Nf6 16.Nc4 h6 17.Qe2 a4 18.Rac1.

10.0-0 a5 11.h3 A) 11...ab4 12.c5 Bc7 13.ab4 b5 14.Qb3 h6 15.Ra3 Ra3 16.Qa3 Ne4 17.Ra1 Qd8 18.Qa7; B) 11...dc4 12.ba5 (12.Nc4 ab4 13.Qb3 Nd5 14.Nd6 Qd6 15.Nd2 N7f6 16.Bf3 b5 17.e4 Qf4 18.ed5) 12...Ra5 13.Nc4 Ra7 14.Nd6 Qd6 15.Nd2 Nb6 16.Qb3 Na4 17.Bc1 b5 18.Bf3; C) 11...h6 12.c5 (12.Nh4 Be4 13.c5 Bc7 14.b5 a4 15.b6 Bb8 16.Re1 Rc8 17.Bc3 e5 18.Bg4; 12.b5 c5 13.a4 Rac8 14.Rc1 Rfd8 15.Qb3 e5 16.cd5 ed4 17.g4 Bg6 18.Bc4; 12.ba5 Ra5 13.c5 Bc7 14.Qb3 Ne4 15.Ne4 de4 16.Nd2 Qg5 17.Kh1 Rb8 18.Qc2; 12.Re1 ab4 13.c5 Bc7 14.ab4 b5 15.cb6 Ra1 16.Qa1 Nb6 17.Qc1 Ra8 18.Qc3) 12...Bc7 13.b5 Ne4 14.Qa4 cb5 15.Qb5 Ndf6 16.Rfd1 Ra6 17.Nh4 Nd2 18.Nf5; D) 11...Bc7 12.b5 (12.cd5 ed5 13.b5 Rfb8 14.Rc1 Ne4 15.Qa4 Ra7 16.Qb3 a4 17.Qa2 Ndf6 18.Ne4; 12.c5 ab4 13.ab4 b5 14.Qb3 Rfe8 15.Ra3 Ra3 16.Qa3 Ne4 17.Ra1 Nd2 18.Nd2; 12.Qb3 dc4 13.Qc4 Nb6 14.Qb3 Nbd5 15.b5 a4 16.Qc4 cb5 17.Qb5 Ra5 18.Qc4) 12...cb5 13.cd5 b4 14.de6 fe6 15.ab4 ab4 16.Qb3 Nb6 17.Ne5 Nbd5 18.Ra8; E) 11...Ne4 12.c5 (12.Ne4 de4 13.c5 Bc7 14.Ne5 Rfd8 15.Qc2 Qg5 16.Rfd1 Bh3 17.Qe4 Bf5 18.Qf4; 12.b5 Qf6 13.Ra2 Qg6 14.Ne4 Be4 15.c5 Be7 16.Bc3 Bf5 17.Kh1 a4 18.Rb2; 12.Qb3 Ndf6 13.ba5 Ra5 14.c5 Bc7 15.Rfd1 Ra7 16.Ne4 Ne4 17.Nd2 Nd2 18.Rd2) 12...Bc7 13.Ne4 de4 14.Ne5 Rfd8 15.Qc2 Qg5 16.Bc3 Ne5 17.de5 Bh3 18.Qe4.

10.0-0 a5 11.Nh4 ab4 12.c5 (12.Nf5 ef5 13.c5 Bc7 14.ab4 Ra1 15.Ba1 Re8 16.Bd3 g6 17.g3 Ng4 18.Nf3) 12...Bc7 13.ab4 Be4 14.f4 b5 15.Qb3 h6 16.Ne4 Ne4 17.Nf3 Rfd8 18.Qc2.

10.0-0 h6 11.Qb3= A) 11...Rfe8 12.Rac1 (12.h3 Bc7 13.c5 a5 14.Rfc1 a4 15.Qc3 Ne4 16.Ne4 Be4 17.Rd1 Red8 18.Ra2; 12.c5 Bc7 13.h3 a5 14.Rfc1 a4 15.Qc3 Ne4 16.Ne4 Be4 17.Rd1 Rf8 18.Ra2; 12.Rfe1 Bc7 13.h3 Ne4 14.Ne4 Be4 15.cd5 ed5 16.b5 c5 17.dc5 Nc5 18.Qc3; 12.Bc3 Bc7 13.c5 e5 14.h3 Ne4 15.Ne4 Be4 16.Rfd1 ed4 17.Nd4 Ne5 18.Bd2 ; 12.Rad1 Bc7 13.h3 a5 14.ba5 Ba5 15.cd5 ed5 16.Nh4 Be6 17.Bd3 Bd2 18.Rd2) 12...Bc7 13.Nh4 Bh7 14.g3 a6 15.Rfd1 Ne4 16.Nhf3 Nd2 17.Nd2 Nf6 18.Nf3; B) 11...Rac8 12.c5 (12.h3 Ne4 13.Ne4 Be4 14.c5 Bc7 15.Qa4 a6 16.Bc3 e5 17.Qb3 Rfe8 18.Ra2; 12.Rac1 Ne4 13.Ne4 Be4 14.c5 Bc7 15.h3 e5 16.Qa4 ed4 17.Bd4 a6 18.Nd2; 12.Rfe1 Ne4 13.Ne4 Be4 14.c5 Bc7 15.h3 Rfe8 16.a4 e5 17.Rac1 Ra8 18.Red1; 12.Bd3 Ne4 13.c5 Bc7 14.Rad1 Ng5 15.Ng5 Qg5 16.Nf3 Qh5 17.Bf5 Qf5 18.Qd3; 12.Bc3 Bc7 13.c5 e5 14.h3 e4 15.Ne1 Bg6 16.b5 Bh5 17.g4 Bg6 18.Ng2) 12...Bc7 13.h3 Rb8 14.Bc3 Ra8 15.Nh4 Be4 16.b5 Rab8 17.bc6 bc6 18.Qa4; C) 11...Rfd8 12.Rad1 (12.c5 Bc7 13.h3 a5 14.Rfd1 a4 15.Qc3 Ne4 16.Ne4 Be4 17.Re1 Qf6 18.Nd2; 12.h3 Ne4 13.c5 Bc7 14.Rad1 Ndf6 15.a4 Nd2 16.Nd2 Ne4 17.Ne4 de4 18.b5; 12.Bd3 Ne4 13.c5 Bc7 14.Rfd1 Ndf6 15.h3 a5 16.Qc2 ab4 17.ab4 Nd2 18.Nd2; 12.Rfd1 Bc7 13.c5 a5 14.h3 a4 15.Qc3 Ne4 16.Ne4 Be4 17.Rac1 Re8 18.Re1; 12.Rfe1 Ne4 13.c5 Bc7 14.Ne4 de4 15.Nd2 Nf6 16.Nc4 Nd5 17.f4 b5 18.cb6) 12...Bc7 13.cd5 ed5 14.Nh4 Bh7 15.g3 Bd6 16.Bc3 Re8 17.Rc1 Ne4 18.Ne4; D) 11...Bc7 12.cd5 (12.c5 e5 13.de5 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Nf3 Qe7 17.Nd4 Qe5 18.b5; 12.Nh4 Bh7 13.Nhf3 a5 14.ba5 Ba5 15.a4 b6 16.Ba3 c5 17.h3 Bf5 18.Rfd1; 12.Rad1 Rab8 13.h3 a5 14.Rfe1 ab4 15.ab4 Ra8 16.Ra1 Ne4 17.Ne4 de4 18.Ne5; 12.h3 Ne4 13.cd5 ed5 14.Ne4 de4 15.Nd2 Rfe8 16.f3 Qd6 17.f4 Qg6 18.Kh1; 12.Rac1 a5 13.cd5 a4 14.Qd1 ed5 15.b5 Rfb8 16.Nh4 Bh7 17.g3 Bd6 18.Ndf3) 12...ed5 13.Nh4 Bh7 14.Nhf3 a5 15.b5 a4 16.Qa2 cb5 17.Rac1 Rfc8 18.Bb5; E) 11...Ne4 12.Ne4 (12.c5 Nd2 13.Nd2 Bc7 14.g3 Nf6 15.b5 Bg4 16.Bg4 Ng4 17.h3 Nf6 18.bc6; 12.Rad1 Nd2 13.Rd2 Nf6 14.Bd3 Ne4 15.Rc2 a5 16.c5 Bc7 17.b5 a4 18.Qb4; 12.Rfd1 Ndf6 13.c5 Bc7 14.h3 a5 15.ba5 Ra5 16.Rac1 Ra7 17.Bd3 Rd8 18.Rc2) 12...Be4 13.c5 Bc7 14.h3 Rfe8 15.a4 e5 16.a5 ed4 17.Nd4 Qg5 18.Nf3.

10.0-0 h6 11.c5 A) 11...Bc7 12.Qb3 (12.h3 Ne4 13.Ne4 de4 14.Ne5 Ne5 15.de5 Rad8 16.Qc2 Qg5 17.Rfd1 Bh3 18.Qe4; 12.Qa4 Ne4 13.b5 cb5 14.Qb5 Ndf6 15.h3 Rac8 16.Qb4 Rb8 17.Qa4 Rbd8 18.Rad1; 12.Bc3 e5 13.Re1 e4 14.Nh4 Be6 15.g3 Nh7 16.Ng2 Ng5 17.Nf4 Nf6 18.Qb3; 12.Nh4 Bh7 13.Qb3 Ne4 14.Nhf3 Ndf6 15.g3 Bf5 16.Rfe1 Rad8 17.Bd3 Ng4 18.Rf1; 12.Ne5 Rfe8 13.Ndf3 Ne5 14.Ne5 a5 15.f3 Nd7 16.Qb3 Ne5 17.de5 ab4 18.ab4) 12...Rfd8 13.a4 Ne4 14.Rfd1 a5 15.b5 Ndf6 16.h3 Rd7 17.Rac1 Re8 18.Bd3; B) 11...Bb8 12.Qb3 (12.h3 Bc7 13.Qb3 a5 14.Nh4 Bh7 15.Nhf3 a4 16.Qc3 Ne4 17.Ne4 Be4 18.Rad1; 12.Nh4 Bh7 13.Nhf3 Bc7 14.h3 Bf5 15.Qb3 a5 16.Nh4 Bh7 17.Nhf3 Be4 18.Ne4; 12.Qa4 Bc7 13.b5 cb5 14.Qb5 Rab8 15.Qa4 Ra8 16.Qb5 Rab8 17.Qa4 Ra8 18.Qb5; 12.Rc1 Bc7 13.Qb3 a5 14.ba5 Ba5 15.Rfd1 Rfb8 16.a4 b6 17.cb6 Bb6 18.Rc6; 12.a4 Bc7 13.Qb3 e5 14.h3 e4 15.Nh4 Be6 16.f4 ef3 17.Nhf3 Ne4 18.Bd3) 12...Bc7 13.Bc3 Ne4 14.Ne4 Be4 15.h3 e5 16.Rfd1 ed4 17.Nd4 Rfe8 18.Ra2.

10.0-0 h6 11.h3 A) 11...Ne4 12.Ne4 (12.c5 Bc7 13.Ne4 de4 14.Ne5 Rad8 15.Nc4 Qg5 16.Kh1 Ne5 17.Ne5 Be5 18.Qa4; 12.Ne5 Ndf6 13.cd5 cd5 14.Bd3 Rfc8 15.Rc1 Rc1 16.Qc1 Nd2 17.Qd2 Bd3 18.Qd3; 12.Rc1 Ndf6 13.Re1 Rfd8 14.c5 Bc7 15.Qa4 Rdc8 16.Nb3 Re8 17.Red1 Rf8 18.Na5; 12.Re1 Ndf6 13.Rc1 Qd8 14.Qb3 a5 15.c5 Bc7 16.ba5 Qe7 17.Red1 Ra5 18.Ne4) 12...Be4 13.c5 Bc7 14.Qb3 Rfe8 15.Rfd1 e5 16.Rac1 ed4 17.Bd4 Ne5 18.Ne5; B) 11...Bc7 12.Qb3 (12.cd5 cd5 13.Rc1 Rfc8 14.Qb3 Bd6 15.Ne5 Bc7 16.Nef3 Bb6 17.Rfe1 a6 18.Nh4; 12.c5 Ne4 13.Ne4 de4 14.Ne5 Rad8 15.Nc4 Qg5 16.Kh1 Nf6 17.Qa4 a6 18.Na5; 12.Rc1 dc4 13.Nc4 Ne4 14.Bd3 a5 15.ba5 Ba5 16.Na5 Ra5 17.Qb3 Nd6 18.Be2; 12.b5 cb5 13.cb5 Rac8 14.Rc1 Ne4 15.Qa4 Ndf6 16.Nb3 Bb6 17.Qb4 Qb4 18.ab4; 12.Nh4 Bh7 13.Nhf3 a5 14.cd5 Nd5 15.b5 Bg6 16.e4 Nf4 17.bc6 bc6 18.Re1) 12...Ne4 13.Ne4 de4 14.Ne5 Ne5 15.de5 Qg5 16.Qc2 Bh3 17.Qe4 Bf5 18.Qf4; C) 11...a5 12.c5 (12.b5 c5 13.Rc1 Rfc8 14.Qb3 a4 15.Qa2 Re8 16.cd5 ed5 17.dc5 Nc5 18.Bf6; 12.ba5 Ra5 13.c5 Bc7 14.Bc3 Ra7 15.Nh4 Be4 16.f4 Rb8 17.Bb4 Ba5 18.Qb3; 12.Re1 ab4 13.c5 Bc7 14.ab4 Ne4 15.Ne4 de4 16.Ne5 Ne5 17.de5 Qg5 18.Qc2) 12...Bc7 13.b5 Ne4 14.b6 Bb8 15.Ne4 de4 16.Nd2 Qg5 17.Bg4 Nf6 18.Bf5; D) 11...Rfe8 12.Qb3 (12.c5 Bc7 13.Qa4 e5 14.Rfc1 ed4 15.Nd4 Bg6 16.Qb3 Ne5 17.a4 Rad8 18.Rc3; 12.Rc1 Ne4 13.Ne5 a5 14.g4 Bh7 15.Ne4 Be4 16.f3 Bh7 17.c5 Bc7 18.Nd7; 12.Bc3 Bc7 13.Qb3 dc4 14.Bc4 Nb6 15.Ne5 Nbd5 16.g4 Bh7 17.Rac1 Rad8 18.Rfd1; 12.Ne5 a5 13.c5 Bc7 14.Qb3 Ne5 15.de5 Nd7 16.f4 Qh4 17.Bd4 ab4 18.ab4; 12.Re1 Ne4 13.c5 Bc7 14.Ne4 Be4 15.Qb3 e5 16.a4 a5 17.Rec1 ab4 18.Qb4) 12...Ne4 13.Ne4 Be4 14.c5 Bc7 15.Rac1 e5 16.Rfd1 ed4 17.Bd4 Ne5 18.Ne5; E) 11...Rfd8 12.c5 (12.Qb3 Ne4 13.Rfd1 Ndf6 14.c5 Bc7 15.Bc3 a5 16.Ne5 Nd2 17.Bd2 Ne4 18.ba5; 12.Nh4 Bh7 13.Nhf3 Ne4 14.Bd3 Bf5 15.c5 Bc7 16.Qc2 Ndf6 17.Rfe1 Nd2 18.Nd2; 12.cd5 ed5 13.Qb3 Ne4 14.Ne4 de4 15.Nd2 Qg5 16.f4 Qg3 17.Bg4 Bg4 18.Ne4; 12.Re1 Ne4 13.Rc1 Ndf6 14.Qb3 a5 15.ba5 Ra5 16.c5 Bc7 17.Red1 Ra7 18.Bd3; 12.Rc1 Ne4 13.Qb3 Ndf6 14.c5 Bc7 15.Rfd1 a5 16.ba5 Ra5 17.Ne4 Ne4 18.Nd2) 12...Bc7 13.Qb3 Ne4 14.Rad1 Nd2 15.Nd2 Nf6 16.b5 Rab8 17.Rc1 Rdc8 18.Rfe1.

10.0-0 h6 11.Nh4 A) 11...Be4 12.g3 (12.Ne4 Ne4 13.g3 Ndf6 14.Qc2 Bc7 15.f3 Ng5 16.c5 Nh3 17.Kg2 Ng5 18.Kh1; 12.c5 Bc7 13.g3 Bh7 14.Qb3 e5 15.Rfe1 a5 16.Bc3 ab4 17.ab4 ed4 18.ed4; 12.f4 Bh7 13.Qb3 Bc7 14.Nhf3 a5 15.c5 Ng4 16.Qc3 Bf5 17.h3 Ngf6 18.b5; 12.Nhf3 a5 13.Ne4 Ne4 14.c5 Bc7 15.b5 cb5 16.Bb5 a4 17.g3 Ndf6 18.Ba4; 12.f3 Bh7 13.f4 a5 14.c5 Bc7 15.b5 cb5 16.Bb5 Nb8 17.Nhf3 Ng4 18.Qe2) 12...Bh7 13.Qb3 Rac8 14.Rac1 Ne4 15.Ne4 Be4 16.c5 Bc7 17.f3 Bh7 18.b5; B) 11...Bh7 12.g3 (12.Nhf3 Ne4 13.h3 a5 14.c5 Bc7 15.Ne4 de4 16.Nd2 Qg5 17.Qc2 Nf6 18.ba5; 12.c5 Bc7 13.Nhf3 Ne4 14.Ne4 Be4 15.Qb3 Qf6 16.b5 Rab8 17.h3 Rfe8 18.Rac1; 12.Qb3 Ne4 13.Nhf3 Ndf6 14.c5 Bc7 15.g3 Bf5 16.Rfe1 b6 17.Ne4 Ne4 18.Qa4; 12.h3 a5 13.c5 Bc7 14.b5 Ne4 15.Ne4 Be4 16.Nf3 cb5 17.Qb3 Nf6 18.Bb5; 12.f4 Ne4 13.Nhf3 Ndf6 14.c5 Bc7 15.Ne5 Nd2 16.Qd2 Ne4 17.Qe1 Bf5 18.Nf3) 12...Ne4 13.Ne4 Be4 14.c5 Bc7 15.Qb3 e5 16.Rac1 Qe6 17.f3 Bh7 18.b5.

10.Ne5 a5 =.

10.Ne5 Ne4 11.Ndf3? (11.0-0 Rfd8 12.Ne4 Be4=) 11...f6?? (better is 11...Ne5 12.c5 Nf3 13.gf3 Nf2 14.Kf2 Qh4 15.Kg1 Bc7–+) 12.Nd7= Qd7 13.0-0 (13.Nh4 Rae8+=) 13...Bg4 (13...dc4 14.Bc4 Bc7 15.Nh4=) 14.Rc1 (14.Ne5 Be2 15.Nd7 Bd1 (15...Bf1?? 16.Nf8 Rf8 17.Kf1+–) 16.Nf8 Bg4= (worse is 16...Rf8 17.Rfd1 dc4 18.Rac1+/–)) 14...Qf7 15.h3 Bh5 16.Nd2 (16.Qc2 a5 17.ba5 Ra5=) 16...Be2 17.Qe2 f5 (17...Nd2 18.Qd2 b5 19.cd5 cd5 20.Rc6=) 18.Qd3 (18.c5 Nd2 19.Qd2 Bb8=) 18...Qh5 (18...Nd2 19.Qd2 f4 20.Qe2+=) 19.f4 (19.Nf3 f4=) 19...Be7+= 20.Ne4 de4 (20...fe4 21.Qd1 Qh6 22.Qa4=) 21.Qd1 Qh6 (21...Qg6 22.Qc2=) 22.Rc2 (22.Qa4 Rfd8=) 22...g5 (22...Qg6 23.Qe2=) 23.d5 (23.Qe1 gf4 24.ef4 Rfd8=) 23...gf4 (23...ed5 24.cd5 Rad8 25.Rd2+=) 24.ef4 (24.dc6 Rad8 25.Qe1 bc6 26.ef4 Rd3=) 24...ed5 25.cd5 Rad8 26.Rd2 cd5 27.Rd5 Qc6 (27...Qe6 28.Rd8 Bd8 29.Qe2=) 28.Rd8 Rd8 29.Qb3 Kf8 30.Rc1 (30.Qg3 Bf6 31.Bf6 Qf6=) 30...Rd3 31.Qd3 (31.Qa2 Qd5 32.Rc8 Kf7 33.Qd5 Rd5=) 31...ed3+= 32.Rc6 bc6 33.Bc1 (33.Kf2 c5 34.Bc3+/–) 33...Bh4–/+ 34.g3 (34.Kf1 Bg3–/+) 34...Bg3 35.Bd2 Bh4 36.Kg2 Be7 (better is 36...Bf6!?–/+) 37.Kf3= c5 38.Ke3 cb4 (38...Kf7 39.Kd3 Ke6 40.Kc4 cb4 41.Bb4=) 39.ab4 Bd6 (39...a6 40.Kd3 Bd6 41.Kd4=) 40.Kd3 (40.b5 Ke7+=) 40...Ke7 (40...a6 41.Ke3=) 41.Kc4 (41.b5 Ke6 42.Be3 Kd5 43.Ba7 Bf4=) 41...a6 42.b5 ab5 43.Kb5 Ke6 44.Kc4 Ba3 45.Be3 Bb2 46.Bd2 Bf6 47.Bb4 (47.Kc5 Bg7=) 47...Bb2 48.Bd2 ½–½. Pohl,K – Erb,David, (year?).

10.Nh4 Be4 =.

10.0-0 Ne4

11.Nb3 dc4 12.Bc4 Qf6 (12...Rad8 13.Nbd2 Ndf6 14.g3 h6 15.Ne4 Be4 16.Bd3 Bc7 17.Be4 Ne4 18.Qd3) 13.Nbd2+= h6 14.Rc1 Rfd8 15.Bd3 Nf2 16.Rf2 Bd3 17.Ne5 Be5 18.Rf6.

11.Nb3 Bc7 12.Rc1 (12.cd5 ed5 13.Rc1 h6 14.b5 Qf6 15.Nfd2 Qd6 16.g3 Ng5 17.f4 Ne6 18.Nf3) 12...Rfc8 (12...dc4 13.Bc4 Bg4 14.h3+= Bh5 15.b5 Qd6 16.Re1 h6 17.bc6 bc6 18.Bd3; 12...h6 13.cd5 ed5 14.b5 Rac8 15.bc6 bc6 16.Ba6 Rb8 17.Rc6 Bd6 18.Bc3) 13.c5 (13.Na5 Rab8+= (13...Qf6 14.cd5 ed5 15.Nd2 Nd6 16.Qb3 h6 17.g3 Rab8 18.Rfe1) 14.Nd2 Qg5 15.f4 Qh4 16.Ne4 Be4 17.Qe1 Qh6 18.Qf2) 13...Bg6 (13...h6 14.Ne5+= (14.Nfd2 Qh4 15.g3 Qg5 16.Ne4 Be4 17.Na5 Rab8 18.Nb3) 14...Ne5 15.de5 Qg5 16.f4 Qe7 17.Nd4 Bg6 18.Bc3) 14.Ne5 (14.Nfd2 h6= (14...Qg5 15.Na5 Rab8 16.f4 Qh4 17.Ne4 Be4 18.Qe1) 15.Na5 Nd2 16.Qd2 Rab8 17.f3 Nf6 18.Bd3; 14.Nbd2 h6 15.g3 Bf5 16.Ne4 de4 17.Nh4 Bh3 18.Re1) 14...Ne5 15.de5 f6 (15...Qg5!?= 16.Bd4 f6 17.ef6 gf6 18.g3) 16.f3+= Ng5 17.ef6 gf6 18.f4 (18.h4 Nf7+=) 18...Ne4= 19.Bg4 (19.Bd3 Kh8=) 19...Rf8 (19...a5 20.Ra1=) 20.Nd4 f5 21.Bf3 e5 22.Ne2 Nf6 23.fe5 Be5 24.Be5 Qe5 25.Qd4 Nd7 (25...Rae8!? 26.Rc3 Ng4 27.Bg4 Qd4 28.Nd4 fg4 29.Rf8 Rf8=) 26.Nf4 (26.b5 Rae8 27.Rc3 Nf6+=) 26...Rae8 27.Rc3 (27.Rfe1 Nf6+=) 27...Re7 (27...Nf6 28.Qd3+=) 28.Kf2 (28.Qd2 Nf6+=) 28...Qg7 (28...Nf6 29.Qe5 Re5 30.h3=) 29.b5 (29.Qd2 Ne5+=) 29...Ne5= 30.Be2 (30.Kg1 Nf3 31.Rf3 Qd4 32.ed4 Re4=) 30...Rfe8 (30...Ng4 31.Bg4 Qd4 32.ed4 fg4 33.Kg1=) 31.h3 Qh6 (31...Bf7 32.Rfc1=) 32.Rb1 (32.bc6 bc6 33.Kg1 Rb7+=) 32...Nf7 33.Bf3 (33.bc6 bc6 34.Bf3 Ng5=) 33...Ng5 34.bc6 bc6 35.Rcb3 Ne6 (35...Nf3 36.gf3 (worse is 36.Kf3 Re4 37.Qb2 d4–/+) 36...Qh4 37.Kg2+=) 36.Ne6 Re6 37.Qf4 (37.R1b2 Bf7+=) 37...Qf8 (37...Qf4 38.ef4 Kg7 39.a4+=) 38.Rc1 Qe7 39.a4 Qd8 (39...Bf7 40.g3+=) 40.Rcc3 (40.Kg1 Qe7 41.Rcc3 Qf6+=) 40...Rf8 (40...R6e7 41.Rb4+=) 41.Kg3 (41.Rb7 Re4 42.Qd6 Qh4 43.g3 Qh3=) 41...Re7+= 42.Rb4 (42.Rb2 Qa5 43.Rb4 Bf7+=) 42...Qa5 43.Rbb3 Rg7 (43...Qd8 44.Rb2+=) 44.Kh2 (44.Kf2 Qc7+=) 44...Bf7 (44...Qc7 45.Qc7 Rc7 46.Rb4+=) 45.Rb4 (45.g3 Re8 46.Rc2 Bg6+=) 45...Be6 46.Rc2 (46.Rc1 Bc8+=) 46...Bc8 47.Rb8 (47.Rc1 Qc7+=) 47...Qc7 48.Qd6 Rd7 49.Qc7 Rc7 50.Kg3 Kf7 (50...Re7 51.Kf4+=) 51.Rd2 (51.Kf4 Kf6+=) 51...Re7 (51...Kf6 52.Kf4+=) 52.Kf2 (52.Kf4 Kf6+=) 52...Kf6 (52...Ba6 53.Rf8 Kf8 54.Rb2=) 53.Be2 (53.Rd4 Kg5+=) 53...Rfe8 54.Bf1 (54.Rd4 Kg5 (54...Re3? 55.Bh5+–) 55.Rb3 Re4=) 54...Ke5 (54...f4 55.ef4 Bd7 56.Rb7+=) 55.Rd4 Be6 (55...Bd7 56.Rbb4+=) 56.Re8+= Re8 57.Rb4 (57.Rh4 Bg8+=) 57...Re7 (57...Rd8 58.Bd3=) 58.a5+= Bc8 (58...Rd7 59.Rh4+=) 59.Bd3 (59.a6 Rg7+=) 59...Rb7= 60.Rh4 Be6 (60...Rb2 61.Kf3 Rb3 62.Ke2=) 61.Rh6 (61.Be2 Bg8=) 61...a6 (61...Rb2 62.Be2=) 62.h4 (62.Be2 Rb2=) 62...Rb2 63.Be2 Ra2 64.h5 Bg8 65.Rc6 d4 66.ed4 (66.Ra6 d3 67.Ra8 Re2 (worse is 67...de2 68.Rg8 Ra5 69.Rg7+/–) 68.Kf1 Bc4–+) 66...Kd4 67.Rc8 (67.Ra6 Re2 68.Ke2 Bc4 69.Kf3 Ba6–+) 67...Bc4 68.Rd8 Ke5 69.Re8 Kd5 70.Kf3 Be2 71.Re2 Ra5 (71...Re2 72.Ke2 Kc5 73.Ke3=) 72.Kf4 (72.h6 Ra3 73.Kf4 Ra4 74.Kf5 Rh4 (74...Kc5? 75.Re7+–) 75.Re5 Kd4+/–) 72...Rc5= 73.Re7 h6 (73...Rc2 74.Rh7 Rg2 75.Kf5 Rf2 76.Kg5 Rg2 77.Kh6+=) 74.Ra7 Rc2 (74...Rc6!?=) 75.Ra6+/– Rg2 (better is 75...Rf2 76.Kg3 Rb2+/–) 76.Rh6 (better is 76.Kf5!? Re2 77.Rh6 Re5 78.Kf6+–) 76...Rf2= 77.Kg3 Rf1 78.Kg2 (78.Rh7 Ke5=) 78...Rf4 79.Ra6 (79.Rh8 Ke5=) 79...Rh4 80.h6 Ke5 (80...f4 81.Kf3=) 81.Ra5 (81.Kg3 Rg4 82.Kf3 Rf4 83.Ke2 Re4 84.Kf2 Rf4 85.Kg3 Rg4 86.Kf2 Rf4 87.Ke3 Re4 88.Kd3 Rd4 89.Kc2 Rh4=) 81...Kf6 82.Ra3 ½–½. Sitnikov,Anton (2440) – Burmakin,Vladimir (2535), Femida, Kharkiv UKR, 2005.

11.Nb3 Rad8 12.Nbd2 (12.c5 Bc7 13.Nfd2 h6 14.Na5 Rb8 15.Ne4 Be4 16.f3 Bf5 17.Qb3 e5 18.Rac1; 12.cd5 ed5 13.Nbd2 Ndf6 14.h3 h6 15.Ne4 Ne4 16.Bd3 f6 17.Qc2 Bc7 18.Rfc1; 12.Nfd2 Qg5 13.f4 Qh4 14.Ne4 Be4 15.Nd2 Nf6 16.c5 Bc7 17.Qa4 a6 18.Qb3; 12.Na5 Rb8 13.Nd2 Qg5 14.f4 Qh4 15.Ne4 Be4 16.c5 Bc7 17.Bc3 Nf6 18.Qe1; 12.Nc5 Ndc5 13.bc5 Bc7 14.Nd2 dc4 15.Ne4 Be4 16.f3 Qg5 17.Qd2 Bd5 18.Rac1) 12...Ndf6 13.h3 Nd2 14.Nd2 Ne4 15.c5 Bc7 16.Ne4 de4 17.Qa4 Qg5 18.Kh1.

11.Nb3 Rfd8 12.Nbd2 (12.c5 Bc7 13.Na5 Rab8 14.Nd2 Qg5 15.f4 Qh6 16.Ne4 Be4 17.Rc1 Nf6 18.a4; 12.Nfd2 Qg5 13.f4 Qg6 14.Bh5 Qh6 15.Ne4 Be4 16.Nd2 Bf5 17.c5 Bc7 18.Be2; 12.Na5 Rab8 13.Nd2 Qg5 14.f4 Qh4 15.Ne4 Be4 16.c5 Bc7 17.Qe1 Qe1 18.Rfe1; 12.cd5 ed5 13.Rc1 h6 14.Nbd2 Re8 15.b5 Rab8 16.a4 Rec8 17.Ne4 de4 18.Nd2) 12...h6 13.c5 Bc7 14.Ne4 de4 15.Nd2 Nf6 16.Qc2 Nd5 17.Nc4 Qg5 18.Rfe1.

11.Nb3 Bg4 12.Ne5 (12.Nfd2 Nd2 13.Nd2 Bf5 14.c5 Bc7 15.Nf3 h6 16.Qb3 Nf6 17.Nd2 a5 18.h3; 12.h3 Bh5 13.Nbd2 Ndf6 14.c5 Bc7 15.Ne4 Ne4 16.Nd2 Be2 17.Qe2 f5 18.Ne4; 12.cd5 ed5 13.h3 Bh5 14.Kh1 f5 15.Qc2 f4 16.ef4 Rf4 17.Nc5 Ndc5 18.dc5; 12.c5 Bc7 13.Nfd2 Be2 14.Qe2 h6 15.Ne4 de4 16.f4 ef3 17.Qf3 f5 18.g3) 12...Be2 13.Qe2 Qh4 14.g3 Qe7 15.f3 Nef6 16.Na5 Rab8 17.Nec6 bc6 18.Nc6.

11.Nb3 h6 12.Ne5 (12.Nc5 Ndc5 13.dc5 Bc7 14.Nd4 Bg6 15.cd5 ed5 16.Rc1 Rfe8 17.g3 Qd7 18.a4; 12.Nfd2 Qg5 13.f4 Qh4 14.Ne4 Be4 15.Nd2 Bf5 16.c5 Bc7 17.Qb3 Qe7 18.b5) 12...Be5 13.de5 dc4 14.Bc4 Rfd8 15.Bd3 Ng5 16.Bf5 ef5 17.f4 Ne6 18.Qh5.

11.Re1 A) 11...Nd2 12.Nd2 (12.Qd2 Nf6 13.c5 Bc7 14.Qc1 Ne4 15.g3 Bg4 16.Nd2 Be2 17.Re2 f5 18.f3) 12...h6 13.Nf3 Nf6 14.c5 Bc7 15.Ne5 a5 16.Qb3 Nd7 17.Nd7 a4 18.Qc3; B) 11...h6 12.Ne5 (12.Ne4 de4 13.Ne5 Bc7 14.Qc2 Rad8 15.Rad1 f6 16.Nd7 Rd7 17.Bc3 Qf7 18.Qa4; 12.c5 Bc7 13.g3 Ndf6 14.Nh4 Bh7 15.Ne4 Ne4 16.Qb3 Qf6 17.f3 Ng5 18.Bc3; 12.g3 Ndf6 13.Nh4 Bh7 14.Ne4 Ne4 15.c5 Bc7 16.Qb3 a5 17.f3 a4 18.Qd1; 12.Qb3 Ndf6 13.c5 Bc7 14.g3 a5 15.Ne4 Ne4 16.Nh4 Qg5 17.f4 Qe7 18.Nf5; 12.cd5 ed5 13.Ne4 de4 14.Nd2 Nb6 15.Rc1 Qg5 16.g3 a6 17.f4 Qe7 18.Nc4) 12...Bc7 13.Ne4 Be4 14.cd5 Ne5 15.de5 ed5 16.f4 a5 17.Qd2 Rfe8 18.Rec1; C) 11...Rfd8 12.g3 (12.c5 Bc7 13.Ne4 de4 14.Nd2 Nf6 15.Qc2 Nd5 16.Rad1 Qg5 17.g3 Qg6 18.Nc4; 12.Ne4 de4 13.Nd2 Qg5 14.c5 Bc7 15.Qc2 Nf6 16.g3 h5 17.h4 Qg6 18.Nc4; 12.cd5 ed5 13.Rc1 Ndf6 14.g3 a5 15.b5 cb5 16.Bb5 Ba3 17.Ba3 Qa3 18.Ra1; 12.Rc1 Ndf6 13.c5 Bc7 14.g3 Bg4 15.a4 h5 16.Qc2 Nd2 17.Nd2 Bf5 18.Bd3; 12.h3 Ndf6 13.c5 Bc7 14.Ne4 Ne4 15.Bd3 Qf6 16.Qe2 h5 17.Ne5 Be5 18.de5) 12...Ndf6 13.c5 Bc7 14.Qb3 h6 15.Ne4 Ne4 16.Ne5 f6 17.Nd3 e5 18.b5; D) 11...Rfe8 12.g3 (12.Ne4 de4 13.Ne5 Bc7 14.Qc2 f6 15.Nd7 Qd7 16.Bc3 Qf7 17.Rab1 e5 18.de5; 12.c5 Bc7 13.Ne4 Be4 14.Qb3 a5 15.Bc3 a4 16.Qb2 e5 17.Ne5 Ne5 18.de5; 12.Ne5 Bc7 13.Ne4 Be4 14.f3 Bf5 15.Qb3 a5 16.c5 a4 17.Qd1 f6 18.Nd7; 12.Qb3 Ndf6 13.Ne4 Ne4 14.c5 Bc7 15.Ne5 f6 16.Nd3 e5 17.Rad1 ed4 18.Bd4; 12.Ra2 h6 13.c5 Bc7 14.Ne4 de4 15.Ne5 Ne5 16.de5 Rad8 17.Qc2 Qg5 18.g3) 12...h6 13.Nh4 Bh7 14.Ne4 Be4 15.f3 Bh7 16.c5 Bc7 17.Qd2 g5 18.Ng2; E) 11...Ndf6 12.c5 (12.g3 h6 13.c5 Bc7 14.Nh4 Bh7 15.Ne4 Ne4 16.Qb3 a5 17.f3 Ng5 18.ba5; 12.Ne4 Ne4 13.Qb3 a5 14.c5 Bc7 15.Bd3 f6 16.Nh4 ab4 17.Nf5 ef5 18.ab4) 12...Bc7 13.g3 h6 14.Nh4 Bh7 15.Ne4 Ne4 16.Qb3 a5 17.f3 a4 18.Qd1.

11.Ne4 A) 11...de4 12.Ne5 (12.Nd2 Qg5 13.g3 Nf6 14.c5 Bc7 15.Qc2 Rfd8 16.Rfe1 h5 17.h4 Qh6 18.Nc4; 12.c5 Bc7 13.Nd2 Qg5 14.g3 Nf6 15.Nc4 Rfd8 16.Qc2 Nd5 17.Rfe1 h5 18.h4) 12...f6 13.Nd7 Qd7 14.c5 Bc7 15.Qb3 Rad8 16.f4 ef3 17.Bf3 Rf7 18.Rad1; B) 11...Be4 12.c5 (12.Bd3 h6 13.Bc3 Nf6 14.Ne5 Qc7 15.c5 Be5 16.de5 Bd3 17.Qd3 Nd7 18.Qd4; 12.Nd2 Bf5 13.c5 Bc7 14.Qb3 h6 15.h3 Nf6 16.b5 Rab8 17.Bc3 Qd7 18.Ra2; 12.Rc1 Qf6 13.c5 Bc7 14.Qa4 e5 15.b5 Rfe8 16.h3 h6 17.Rfd1 Qg6 18.Nh4; 12.cd5 cd5 13.Rc1 Rac8 14.Qb3 f6 15.Nd2 Bg6 16.g3 Nb6 17.Bf3 Qd7 18.b5) 12...Bc7= 13.h3 h6 14.Qa4 Qf6 15.Rac1 Qg6 16.Nh4 Qf6 17.Nf3 e5 18.b5.

11.Ne5 A) 11...f6 12.Ne4 (12.Nd7 Qd7 13.Ne4 Be4 14.f3 Bf5 15.c5 Bc7 16.Bd3 Bd3 17.Qd3 Qe8 18.Rf2; 12.Nef3 Nd2 13.Nd2 a5 14.c5 Bc7 15.b5 e5 16.b6 Bb8 17.Re1 Re8 18.g3) 12...Be4 13.Nd7 Qd7 14.f3 Bf5 15.c5 Bc7 16.Bd3 e5 17.e4 de4 18.Bc4; B) 11...Bc7 12.Ne4 (12.Nd7 Nd2 13.Qd2 Qd7 14.f3 Rfe8 15.Rac1 h6 16.Bd3 Bd3 17.Qd3 Qe7 18.Rf2; 12.cd5 ed5 13.Ne4 Be4 14.Nd7 Qd7 15.Qd2 Rfe8 16.f3 Qd6 17.g3 Bf5 18.Rae1; 12.f3 Nd2 13.Qd2 Ne5 14.de5 dc4 15.Bc4 Rad8 16.Qc3 b5 17.Be2 Rd5 18.f4; 12.c5 Ne5 13.de5 Qg5 14.f4 Qg6 15.Bh5 Qh6 16.Bf3 Rfd8 17.Bd4 Nd2 18.Qd2; 12.Rc1 Ne5 13.de5 Rfd8 14.c5 a5 15.f3 Nd2 16.Qd2 ab4 17.Qb4 b5 18.cb6) 12...Be4 13.f3 Bf5 14.Qb3 a5 15.Nd7 Qd7 16.c5 a4 17.Qc3 h6 18.e4; C) 11...Rfd8 12.Ne4 (12.cd5 Nd2 13.Qd2 ed5 14.g4 Bg6 15.Ng6 hg6 16.Bd3 Nb6 17.Rac1 Na4 18.Ba1; 12.c5 Bc7 13.f3 Nd2 14.Qd2 Ne5 15.de5 h5 16.Bd4 h4 17.h3 Qg5 18.Bd3; 12.f4 Nd2 13.Qd2 Nf6 14.Bf3 Ne4 15.Qe2 Qh4 16.g4 Bg6 17.Ng6 hg6 18.g5; 12.Nd7 Rd7 13.Ne4 Be4 14.f3 Bf5 15.c5 Bc7 16.b5 e5 17.Qb3 h6 18.Rac1) 12...de4 13.Qb3 h6 14.c5 Bc7 15.Rad1 a5 16.Nd7 Rd7 17.ba5 Ra5 18.Bc3; D) 11...h6 12.Ne4 (12.c5 Bc7 13.Ne4 Be4 14.f3 Bf5 15.Qd2 a5 16.Nd7 Qd7 17.Bd3 Bd3 18.Qd3; 12.Nd7 Nd2 13.Qd2 Qd7 14.c5 Bc7 15.a4 Qe7 16.g3 Rad8 17.b5 Be4 18.a5; 12.f3 Nef6 13.Qb3 Bc7 14.c5 Rac8 15.Bd3 Rfd8 16.e4 Bh7 17.Rad1 de4 18.Ne4; 12.Re1 Rad8 13.Ne4 Be4 14.f3 Bf5 15.c5 Bc7 16.Qa4 Ne5 17.de5 Ra8 18.Bd4) 12...de4 13.Qb3 Rad8 14.c5 Bc7 15.Rfd1 Qg5 16.Qa4 Ne5 17.de5 Bh3 18.g3; E) 11...Nd2 12.Qd2 f6 13.Nd7 Qd7 14.c5 Bc7 15.Bc3 e5 16.a4 Qe6 17.b5 Rfe8 18.Rfe1.

11.h3 A) 11...h6 12.Ne4 (12.Ne5 Rad8 13.c5 Bc7 14.Ne4 Be4 15.Nf3 e5 16.Rc1 ed4 17.Qd4 f6 18.Qc3; 12.c5 Bc7 13.Ne4 de4 14.Ne5 Qg5 15.Qc2 Rad8 16.Rfd1 Bh3 17.Qe4 Bf5 18.Qf4; 12.Re1 Ndf6 13.Rc1 Nd2 14.Nd2 a5 15.c5 Bc7 16.b5 a4 17.b6 Bb8 18.f4; 12.Rc1 Qf6 13.cd5 ed5 14.b5 Rab8 15.Ne4 de4 16.Nd2 Qg5 17.g4 Be7 18.Qc2; 12.Qc1 Ndf6 13.c5 Bc7 14.Bc3 a5 15.Ne4 Ne4 16.ba5 Nc3 17.Qc3 Ba5 18.Qb3) 12...de4 13.Ne5 Rad8 14.Qc2 Qg5 15.c5 Bc7 16.Rad1 Bh3 17.Qe4 Bf5 18.Qf4; B) 11...Rfe8 12.c5 (12.Ne4 de4 13.Ne5 f6 14.Nd7 Qd7 15.c5 Bc7 16.Bc3 Qf7 17.Bh5 Bg6 18.Be2; 12.Rc1 h6 13.Ne5 Bc7 14.Ne4 Be4 15.f3 Bf5 16.Nd7 Qd7 17.Bd3 Qd6 18.f4; 12.Re1 Qf6 13.c5 Bc7 14.Ra2 Qg6 15.Ne4 Be4 16.Bc3 e5 17.Nh4 Qf6 18.Nf3; 12.Ne5 f6 13.Nef3 Nd2 14.Qd2 dc4 15.Bc4 Nb6 16.Bd3 Bd3 17.Qd3 Na4 18.Bc3) 12...Bc7 13.Ne4 Be4 14.b5 e5 15.Qa4 ed4 16.bc6 Nc5 17.Qd4 Ne6 18.Qa4; C) 11...Bc7 12.Ne4 (12.cd5 ed5 13.Rc1 Ndf6 14.b5 Nd2 15.Nd2 cb5 16.Bb5 Qd6 17.Nf3 Ne4 18.Qe1; 12.b5 cb5 13.cd5 ed5 14.Bb5 a6 15.Be2 b5 16.Rc1 Rfc8 17.Qb3 Nd2 18.Nd2; 12.Rc1 Nd2 13.Nd2 Nf6 14.b5 cb5 15.cd5 ed5 16.Nf3 a6 17.Qb3 Rac8 18.Ne5) 12...de4 13.Ne5 Rad8 14.Qc2 Qg5 15.Bc3 f6 16.Nd7 Rd7 17.Kh1 Qh6 18.Kg1; D) 11...h5 12.Ne4 (12.c5 Bc7 13.Ne4 de4 14.Ne5 Qg5 15.Qc2 Rad8 16.Kh1 Ne5 17.de5 Bg6 18.Qc3) 12...de4 13.Ne5 h4 14.Qc2 Bc7 15.Rfd1 Rad8 16.Bc3 Qg5 17.Ng4 Nf6 18.Nf6; E) 11...Qf6 12.Rc1 (12.Re1 h6 13.c5 Bc7 14.Ra2 Qe7 15.Ne4 de4 16.Ne5 Rad8 17.Qc2 Qg5 18.Bc3; 12.Qc1 h6 13.c5 Bc7 14.Rd1 Rfe8 15.Ne4 Be4 16.Qc3 e5 17.Qb3 Qf5 18.Rac1; 12.c5 Bc7 13.Ra2 h6 14.Ne4 Be4 15.Qb3 Qg6 16.Nh4 Qg5 17.Nf3 Qf5 18.Bc3; 12.Ra2 Rfe8 13.c5 Bc7 14.Ne4 Be4 15.Qb3 Qg6 16.Nh4 Qh6 17.Nf3 a6 18.Bc3; 12.cd5 ed5 13.Rc1 h6 14.b5 Rab8 15.Ne4 de4 16.Nd2 Qg5 17.g4 Rfc8 18.f4) 12...h6 13.cd5 ed5 14.b5 Rab8 15.Ne4 de4 16.Nh2 Qg5 17.Ng4 h5 18.h4.

7.d4 Nbd7

8.Nc3 0-0 9.Bd3 =+.

8.Nc3 Rc8 9.Qb3 (9.c5 Bc7=) 9...Be7 (9...0-0 10.Be2=+) 10.Be2= Ne4 (10...dc4 11.Qc4 Nb6 12.Qb3=) 11.Rc1 (11.0-0 dc4 12.Qc4 0-0=) 11…0-0 ½–½. Melich,Jindrich (2215) – Vavra,Jan, CZE Czechia–ch, 1994.

8.Nc3 Ne4 9.Bd3 Ndf6 10.0-0 Nc3 11.Bc3 Bd3 12.Qd3 dc4 13.Qc4 0-0 14.Rfe1 Nd5 15.e4 Nc3 16.Qc3 Qc7 17.e5 Be7 18.b5 Rfd8 19.bc6 Qc6 20.Rac1 Rac8 21.Qc6 Rc6 22.Rc6 bc6 23.Rc1 c5 24.dc5 Bc5 25.g3 Bb6 26.Rc6 Kf8 27.Kg2 Ke7 28.Nh4?? (28.Rc4 h6=+) 28...Rd7?? (better 28...Rd2 29.g4 Rf2 (worse 29...Bf2 30.Nf3 Ra2 31.Rc7 Ke8 32.Rb7-+) 30.Kg3 Ra2-+) 29.f4 Rc7 (better 29...Rd3!?-/+) 30.Rc7= Bc7 31.Nf3 Kd7 32.a4 Bb6 (32...Bd8 33.Nd4=) 33.Nd2 (better 33.Ng5!?+/-) 33...Kc6= 34.Nc4 Bc5 35.Kf3 a6 36.Ke4 Bg1 37.h3 Bh2 38.g4 Bg1? (better 38...Kd7=) 39.Nd6+/- f6? (39...Bc5!? 40.Nf7 Be7+-) 40.Ne8+- Bb6? (40...g5+-) 41.Ng7 fe5 42.Ne6 Bc5 (42...ef4 43.g5 Kd6+-) 43.Nc5 Kc5 (43...ef4 44.Kf4 Kc5+-) 44.fe5 Kb4 45.e6 Ka4 46.e7 Kb4 47.e8Q a5 48.Qh8 (48.Qc6 a4 49.Kd3 Ka3 50.Qb5 h6 51.Kc3 h5 52.Qb2) 48...a4 49.Qh7 a3 (49...Kc3 50.Qa7 Kc4 51.Qc7 Kb3 52.Qb7 Kc3 53.Qb5 a3 54.Qc5 Kd2 55.Qa3 Kc2 56.Qb4 Kd1 57.Qb2 Ke1 58.Ke3 Kd1 59.Qd2) 50.Qa7 (50.Kd4 a2 51.Qb7 Ka3 52.Kc4 a1N 53.Kc3 Nb3 54.Qb3) 50...a2 (50...Kb5 51.Qa3 Kc6 52.g5 Kb5 53.g6 Kc6 54.g7 Kc7 55.g8Q Kb6 56.Qc8 Kb5 57.Qcc5) 51.Qa2 Kc3 (51...Kc5 52.g5 Kb6 53.g6 Kc5 54.g7 Kc6 55.Qa6 Kc7 56.g8Q Kd7 57.h4 Ke7 58.Qae6) 52.Qd5 Kb4 (52...Kc2 53.Kd4 Kb2 54.Kd3 Kb1 55.Qb7 Ka2 56.Kc3 Ka3 57.Qb3) 53.g5 (53.g5 Kc3 54.g6 Kb4 55.g7 Kc3 56.g8Q Kb4 57.Qg3 Ka4 58.Qgb3; 53.Kd4 Ka3 54.Kc3 Ka4 55.g5 Ka3 56.Qb3) 1-0. GM_HUSARZ (2110) - emreon3 (2060), Rated Bullet game, lichess.org, 2015.

8.c5 Bc7 9.Nbd2 0-0 10.Be2 Ne4 11.0-0 h6 12.Ne4 Be4 13.Bd3 f5 14.Ne1 Bd3 15.Nd3 Qg5 (15...Qh4 16.f4=) 16.f4 Qg6 17.Ne5 Ne5 18.fe5 Qg5 19.Qf3 Rf7 20.Bc1 Qg6 21.Bd2 Raf8 22.g3 (22.a4 Bd8+=) 22...a6 23.Rae1 Bd8 24.Qe2 Bg5 25.a4 f4 26.ef4 Bf4 27.Bf4 Rf4 28.Rf4 Rf4 29.Qe3 (better is 29.Qd1!?+=) 29...Re4+= 30.Qf2 Re1 31.Qe1 Qd3 32.Qf2 (32.Qa1+=) 32...Qc4 (better is 32...Qb1!? 33.Qf1 Qb4–/+) 33.Qb2= Qd3 34.Kg2 Qe4 35.Kg1 Kh7 (35...Qe1 36.Kg2=) 36.Kf2 (36.h3 Qf3 37.Kh2 Kg6=) 36...Kg6 (36...Qh1 37.Ke3+=) 37.h4 Kf5 38.Kg1?? (better is 38.Qd2=) 38...Kg4 39.Kh2 Qf3 (better is 39...Kf3 40.Qg2 Ke3–+) 40.Qg2= g5 (40...Qd3 41.Qf2 g5 42.hg5 hg5 43.Kg2–/+) 41.Qh3 (41.hg5!? Qg2 42.Kg2 Kg5 43.Kf3+=) 41...Kh5= 42.hg5 Kg5 43.Qh4 Kg6 44.Qf4?? (better is 44.Qe7=) 44...Qf4–+ 45.gf4 Kf5 46.Kg3 h5 (better is 46...Ke4!? 47.Kg4 Kd4–+) 47.a5–/+ h4 48.Kh4 Kf4 49.Kh5 Ke4 50.Kg5 Kd4 51.Kf6 Kc4 52.Ke6 d4 53.Kd6?? (53.Kf6 d3 54.e6–+) 53...d3 (53...Kb4?! 54.e6 d3 55.e7–/+) 54.e6 d2 (54...Kb4?! 55.e7 d2 56.e8Q d1Q 57.Kc7–/+) 55.e7 d1Q 56.Kc7 Qe2 57.Kd8 Kb4 58.e8Q (58.e8R Qe8! 59.Ke8 Ka5–+) 58...Qe8 59.Ke8 Kc5 60.Kd7 b5 61.ab6 Kb6 62.Kd6 Kb5 0–1. mihai740609 – zosiek2009 (1695), kurnik, 2011.

8.Bd3 dc4!? 9.Bc4 Nb6=+.

8.Bd3 Bg4 9.Nbd2= 0-0 10.h3 Bh5 11.Qc2 Re8 (11...Bg6 12.Bg6 hg6 13.0-0=) 12.0-0 (12.c5 Bf3 13.Nf3 Bc7+=) 12...e5 (12...Bg6 13.c5 Bc7 14.Bg6 hg6 15.a4=) 13.de5 (13.cd5 Bf3 14.de5 Be5 15.Nf3 Bb2 16.Qb2 Nd5+=) 13...Ne5= 14.Ne5 Be5 15.cd5 Bb2 16.Qb2 Qd5 17.Bc4 Qe5 (17...Qd6 18.Nb3=) 18.Qb3 (18.Qe5 Re5 19.g4 Bg6=) 18...Rad8 (18...Qc7 19.Qc2=+) 19.Nf3= Qc7 20.Ng5?? (20.Nd4 Ne4 21.Rfe1 Bg6=) 20...Re7 (better 20...b5 21.Bd3 h6-+) 21.g4=+ Bg6 22.Rad1 h6 (22...Red7 23.Rd7 Qd7 24.f4=+) 23.Nf3 Be4 24.Nd4 (better 24.Rd8 Qd8 25.Rd1=) 24...h5?? (24...Nd5 25.Rd2=+) 25.g5?? (better 25.Bf7 Rf7 26.Ne6 Rd1 27.Nc7 Rf1 28.Kf1 hg4 29.Qe6+-) 25...Nd7 (25...Nd5 26.Rd2=+) 26.f4 (better 26.Bd3=) 26...Nb6?? (better 26...Rde8=+) 27.Be2?? (better 27.Bf7 Rf7 28.g6+/-) 27...Nd5 (better 27...Rde8!? 28.Bh5 Bd5-/+) 28.Bh5= c5 (28...Qb6 29.Rf2=) 29.bc5 Qc5 30.Rc1 Qb6 31.Qb6 Nb6 (31...ab6 32.Rfe1=) 32.Bg4 (32.Rfd1 Nd5 33.Nb5 Rf8+/-) 32...Nd5+= 33.Rfe1 Nf4 34.ef4 Rd4 35.Rc8 Kh7 36.Re4 (36.f5 b5+=) 36...Rde4 37.Bf5 g6 38.Be4 Re4 39.Rc7 Rf4 40.Rb7 a5 41.Kg2 a4 (41...Kg7 42.Kg3 Rc4 43.Rb3=) 42.Kg3+= Rf5 43.Ra7 (43.h4!?+=) 43...Rg5= 44.Kh2 Rd5 45.Ra4 f5 46.Kg3 Kh6 47.h4 Rd3 48.Kf2 Rh3 49.Ra8 Kh5 50.a4 Ra3 51.Rh8 Kg4 52.Rg8 Kh4 53.Rg6 Ra4 54.Kf3 Rc4 55.Rg8 Kh5 56.Rg1 Rg4 57.Rg4 fg4 58.Kg2 Kh4 59.Kg1?? (better 59.Kh2=) 59...Kg3-+ 60.Kh1 Kf2 61.Kh2 g3 62.Kh3 g2 63.Kh4 (63.Kg4 g1Q 64.Kf5 Qg7 65.Ke6 Qc7 66.Kd5 Qc3 67.Kd6 Qd4 68.Ke6 Kg3 69.Ke7 Qd2 70.Ke6 Kf4 71.Kf7 Qd7 72.Kf6 Qe8 73.Kg7 Kg5 74.Kh7 Kf6 75.Kh6 Qg6) 63...g1Q 64.Kh5 Kf3 (64...Qg7 65.Kh4 Qg6 66.Kh3 Qg3) 65.Kh6 Kf4 (65...Qg8 66.Kh5 Qg7 67.Kh4 Qg4) 66.Kh7 Kf5 67.Kh8 Kf6 68.Kh7 Qg7 0-1. dale70 (2000) - aruran (2095), Rated Blitz game, lichess.org, 2015.

7.cd5 ed5

8.Be2 0-0 9.0-0 Bc7 10.Nd4 Qd6 11.f4 Bg6 12.Nc3 Nbd7 (better is 12...Rc8!?+=) 13.Ncb5!+/– cb5 14.Nb5 Qe7 15.Nc7 Rac8 16.Rc1 Be4 17.Bf3 (17.Bd4!?+–) 17...Bd3 18.Re1 (18.Nd5 Nd5 19.Rc8 Rc8 20.Bd5 Bf1+/–) 18...Qd6 19.Rc3 Bc4 20.d3 Qc7 21.dc4 dc4 22.Rc1 Rfe8 23.Qc2 b5 24.Bd4 1–0. Fournier,Frederic – Concepts, Active, 2006.

8.Be2 0-0 9.0-0 Nbd7 10.Nd4 Bg6 11.f4 h6 12.Nc3 a5 13.ba5 Ra5 14.Nb3 Ra8 15.a4 Nb6 16.f5 (16.d3 Nbd7+=) 16...Bh7+= 17.d3 Re8 18.a5 Nbd7 19.e4 (19.Qc1 Qb8 20.h3 Re5+=) 19...Qc7–/+ 20.ed5 Bh2 21.Kh1 cd5 22.Nb5 Qb8 23.Ra4 Be5 24.Bc1 Qd8 25.Bf4 Qe7 (worse is 25...Bf5 26.Be5 Re5 27.d4 Re2 28.Qe2–/+) 26.Be5 Qe5 27.N3d4 Nb8 28.Qa1 (28.Qc2 Ra6 29.Qc7 b6–/+) 28...Nc6–+ 29.Ra2 Ne7 30.Bd1 (30.Qc3 Nf5 (30...Bf5?! 31.Qc7 Qc7 32.Nc7=) 31.Nf5 Bf5–/+) 30...Qg3 (30...Nf5 31.Nf5 Bf5 32.Qe5 Re5 33.d4–+) 31.Raf2 (31.Be2–+) 31...Nc6 (31...Qd3?! 32.Nc7–/+) 32.Qc3 (32.Nc6 bc6 33.Nd4 c5–+) 32...Ne5 (32...Nd4 33.Qd4 Ra5 34.Rf3–+) 33.Qc7 Rac8 34.Qd6 Rcd8 (better is 34...Qd3 35.Bf3–+) 35.Qc7? (better is 35.Rf3 Qg5 36.Ne6 Rd6 37.Ng5–+) 35...Rd7 36.Rf3 Qg5 (36...Rc7?! 37.Rg3 Rc5 38.Ba4–/+) 37.Qc5 Nf3 38.Bf3 Qe3 0–1. Lindner,J – Kuijf,M, Guernsey, 1988. (=1.c4 c6 2.b4 d5 3.e3 Bf5 4.Bb2 e6 5.Nf3 Nf6 6.a3 Bd6 7.cd5 ed5)

8.Be2 0-0 9.Nd4 Be4 10.0-0 Qc7 11.f4 h6 (11...Qe7 12.Nc3=) 12.Nc3+= Bg6 13.Rc1 a6 14.Qb3 (14.Qe1 Nbd7+=) 14...Nbd7 15.g3 Rae8 16.Rf2 Bh7 17.Ba6?? (17.h3!?=) 17...ba6=+ 18.Nd5 cd5 (18...Nd5 19.Rc6) 19.Rc7 Bc7 20.Nc6 Bd6 21.Rf1 Rc8 22.Rc1 Rfe8 23.Be5 Bf8 (23...Be5 24.Ne7 Re7 25.Rc8 Nf8 26.fe5 Re5 27.Ra8+–; 23...Re5 24.fe5 Ne5 25.Ne7 Be7 26.Rc8 Bf8 27.b5+–) 24.d4 (24.Bd4 Bf5=+) 24...Bf5 25.Qa4 Ng4 (Black is in command) (25...Ne5?! 26.fe5 Ne4 27.Qa6=) 26.Qa6 Ra8 27.Qb5 Ra3 28.Qd5 Ne3 (< 28...Nde5 29.Ne5 (< 29.fe5 Ne3 30.Qf3 Be6=+) 29...Be6 30.Qb5+=) 29.Qb5 Rea8 30.Qb7 Ra1 (30...Ra2!? 31.Re1 R8a3–/+ (31...Ne5?! 32.fe5 Rg2 33.Kh1–/+)) 31.Ra1=+ Ra1 32.Kf2 Ng4 33.Kg2? (better is 33.Ke2=+) 33...Be4–+ 34.Kh3 Nf2 (34...Nde5 35.de5 Nf2 36.Kh4 Bc6 37.Qc8–+) 35.Kh4 Rh1 36.g4 Rh2 37.Kg3 Rg2 38.Kh4 Rg4 39.Kh5 g6# 0–1. Psion – Psion, 4 Min/Zug, 1990.

8.Be2 a5 9.b5 =.

8.Be2 Bg6 9.Nh4 Nbd7 10.Ng6 hg6 11.h3 Qe7 12.Nc3 a6 13.d4 Ne4 14.Qc2 Nc3 15.Bc3 Nf6 16.Bf3 (16.Rc1 Ne4=) 16...0-0 (16...g5 17.Rg1=) 17.h4 Ne4 18.Bb2 (18.Be4 de4 19.h5 gh5 20.Rh5 Rae8+=) 18...a5 19.ba5 (19.b5 cb5 20.Qb3 Rfc8=) 19...Ra5 20.a4 Bb4 21.Ke2 Nd2 (21...Rfa8 22.h5=) 22.h5= Nf3 (22...gh5 23.Rh5 g6 24.Rh3=) 23.gf3 g5 (23...gh5 24.Qf5 g6 25.Qh5 Kg7=+ (25...gh5?? 26.Rag1 Qg5 27.Rg5 Kh7 28.Rhh5)) 24.Rhg1 (24.h6!? g6 25.h7 Kh8 26.Qb3=) 24...Rfa8=+ 25.Rg4 Bd6 26.Kd2 (26.Bc3 R5a6=+) 26...Qf6 27.Ke2 Qe7 (27...R5a6!?=+) ½–½. Diener,Rudolf – Selleri, corr EU–M–1066, 1995.

7.Be2 dc4

8.Bc4 0-0 9.d3 =+.

8.Bc4 b5 9.Be2 =+.

7.Be2 Nbd7

8.0-0 Qe7. A de Visser.

8.Nc3 dc4 9.Bc4 0-0 10.0-0 =+.

8.Nc3 e5 9.cd5= cd5 (< 9...Nd5 10.e4 Nf4 11.ef5 Ng2 12.Kf1+–) 10.Nb5 (10.0-0 0-0=) 10...Bb8 11.d4 (11.0-0 0-0=) 11...e4 12.Ne5 a6 (12...0-0 13.Rc1=+) 13.Nd7 Nd7 14.Nc3 Nb6 (14...Qg5 15.g3 Bh3 16.b5=) 15.b5 (15.Rc1 0-0=+) 15...0-0=+ 16.ba6 ba6 17.a4 (17.Qb3 Qd6=+) 17...Qg5 18.g4 Be6 19.h4 Qg6 (19...Qd8 20.Ba3 Re8 21.Rc1=+) 20.a5 Nc4 (20...Nd7 21.Qa4 Ra7 22.h5=+) 21.Bc4 (21.h5 Qg5 22.Bc4 dc4 23.Ne4 Qd5=) 21...dc4=+ 22.h5 Qg4 23.Qg4 Bg4 24.Ne4 ½–½. Nilsson,Jonas – Dyrgaard,Kristoffer, Esbjerg DEN, 2007.

8.c5 Bc7 =.

8.d3 0-0 9.Nbd2 (9.Nh4 Bg6=) 9...Re8 (9...c5 10.Bc3=) 10.0-0 (10.Nh4 Be5 11.d4 Bd6=) 10...e5 11.Rc1 (11.e4 de4 12.de4 Be4 13.Ne4 Ne4+=) 11...Rc8 (11...a5 12.c5 Bc7 13.ba5 Ra5 14.Nb3=) 12.Qb3 (better is 12.e4 de4 13.de4 Be4 14.Ne4 Ne4 15.Bd3=) 12...Bd3 (12...Qe7!?=) 13.Bd3 (13.Qd3 e4 14.Ne4 Re4 15.cd5 cd5 16.Rc8 Qc8+/–) 13...e4 14.Be2 (14.cd5 ef3 15.Nf3 Nd5+/–) 14...ef3+= 15.Nf3 Ne5 16.cd5 Nd5 17.Rfd1 (17.Be5 Be5 18.Bc4 Rc7+/–) 17...Nf3 (17...Qf6 18.Qc2 Rc7 19.Be5 Be5 20.Bc4+=) 18.Bf3+/– (18.gf3? Qg5 19.Kf1 Bh2–+) 18...Be5?? (18...Nf6+/–) 19.e4 (19.Be5 Re5 20.e4 Qe7 21.Rd5 Re8 22.Re5 Qe5+–) 19...Qh4?? (better is 19...Bb2 20.Qb2 Qf6+=) 20.g3 (20.Be5 Nf6 21.Bg3 Qh6+–) 20...Qf6 (20...Qg5 21.Be5 Nf6 22.Bf4+–) 21.Be5 (21.ed5?! Bb2 22.Rc2 Bd4+=) 21...Re5 (21...Qe5 22.ed5 cd5 23.Rc8 Rc8 24.Qd5 Qd5 25.Rd5+–) 22.Rd5 (22...Re7 23.Qc3+–; 22.ed5 Ree8+–) 1–0. Schols,A – Timmerhuis,J, 2002.

8.d3 e5 9.0-0 =.

6.a3 Nbd7

7.Qb3 a5 8.d3 =+.

7.Qb3 Be7 8.Nc3 0-0 9.Be2 dc4 10.Bc4 Nb6 11.Be2 Bd3 12.Ne5 Be2 13.Ne2 Ne4 (13...Bd6 14.d3=) 14.d3= Nd6 15.0-0 Bf6 16.Nf4 Nd5 17.Nh5 Be5 18.Be5 f6 19.Bb2 Qe8 20.Ng3 Qg6 21.Rac1 h5 22.h3 Rae8 (22...Rad8 23.Bd4 h4 24.Ne2+=) 23.Bd4+= f5 24.Bc5 Rd8 25.e4 (25.b5!?+=) 25...Nf4= 26.Bd6 (26.e5 h4 A) 27.Ba7? hg3 28.ed6 gf2 29.Rf2 Nh3 30.Kf1 Nf2 31.Kf2 f4–+ (31...Rd6?! 32.Bc5 Rd5 33.Bf8 Kf8 34.Rc5–+); B) 27.Be3=) 26...Rd6–/+ 27.ef5 Rf5 28.h4 Rd3 29.Qc4 (29.Rc3 Rfd5 30.Rd3 Rd3–/+) 29...Qg4 30.Rce1?? (better is 30.Rfe1 Rfd5 31.b5–+) 30...Rg3 31.fg3 Nh3! (31...Nh3 32.gh3 Qc4 33.Rf5 ef5–+) 0–1. Fabisch,Christian (2150) – Manhardt,Thomas (2150), Graz AUT, Steirische Landesliga, 2012.

7.Nc3 Qc7 8.Nh4 Bg6 9.Ng6 hg6 10.g3 Bd6 11.Ne2 (11.d4 dc4 12.Bc4 a5=) 11...0-0-0 (better 11...dc4!? 12.Qc2 b5–/+) 12.c5= Nc5?? (better 12...Be7=) 13.bc5+– Bc5 14.Bf6 (14.Bg2!? Qa5+–) 14...gf6+– 15.Nf4 d4 16.ed4 (16.Nd3 de3 17.de3+– (17.Nc5? ed2 18.Ke2 Qe5 19.Kf3 Qd5 20.Ne4 f5–+; 17.fe3?! Bd6+=)) 16...Bd4 17.Rb1 Qa5 18.Rb3?? (18.Be2 Qa3 19.0-0 Qa5=) 18...e5?? (better 18...Bf2 19.Ke2 g5–+) 19.Ne2= Qd5 20.Nd4? (better 20.f3 Bb6 21.Nc3=) 20...Qh1–+ 21.Nc6? (better 21.Nf3 e4 22.Nh4–+) 21...bc6 (21...Qc6!? 22.h4–+) 22.Qg4 f5 23.Qb4 Qe4 24.Qe4 fe4 25.Re3 f5 26.h3 Kc7 27.g4 (27.f3 ef3 28.Re5 Rhe8 29.Re8 Re8 30.Kf2 Re4–+) 27...Rd4 28.gf5 gf5 29.Bg2 (29.f3 Rb8 30.fe4 Rb1 31.Ke2 Rb2–+) 29...Rhd8 30.Re2 Rd3 31.a4 Ra3 32.Re3 (32.Kf1–+) 32...Ra4 33.Rc3 (33.h4 Ra1 34.Ke2 Ra2–+) 33...Ra1 34.Ke2 Rd3! 35.Rd3 (35.Rc2 a5–+) 35...ed3 36.Kd3 e4 37.Ke3 (37.Kd4 Rg1 38.Be4 fe4–+) 37...Ra3 (better 37...a5 38.Kf4–+) 38.Kf4 Ra5 (38...a5 39.Ke5–+) 39.f3 (39.h4 Rd5 40.h5 Rd2 41.h6 Rf2 42.Kg3–+) 39...ef3 40.Bf3 Rc5 (better 40...Rb5 41.Bd1 Rb4 42.Ke3–+) 41.d4 (41.h4 a5 42.h5–+) 41...Rc4 42.Ke5 (42.Ke3 c5–+) 42...a5 43.h4 (43.Bh5 a4 44.Bf7 Rc2–+) 43...Rc1 (better 43...a4!? 44.Bd1 Rb4 45.Ba4 Ra4 46.h5–+) 44.h5 a4 45.Kf5 (45.h6 a3 46.h7 Re1 47.Kf4–+) 45...a3 46.h6 a2 (better 46...Rb1 47.Be2 a2–+) 47.h7 1–0. Atotheking (1725) – Corleone1914 (1655), lichess.org, 2020.

7.Nc3 Ne4 8.c5 (8.d3 Nef6=) 8...Ndf6 (8...Be7 9.Be2=) 9.Ne4 (9.d3 Nc3 10.Bc3 Be7+=) 9...Be4 (9...de4 10.Ne5=) 10.d3 Bf5 (10...Bf3 11.Qf3 a5 12.Rb1=) 11.Be2 Be7 12.Ne5 Nd7 (12...0-0 13.g4 Bg6 14.h4+/– (worse is 14.Ng6 fg6 15.g5 Ne8+=)) 13.g4 (13.Nd7!? Qd7 14.g4+/–) 13...Bf6= 14.gf5 Be5 15.Be5 Ne5 16.fe6 fe6 17.d4 (17.Rg1 0-0 18.d4 Nd7=) 17...Nf7 18.Bg4 (18.b5 e5=) 18...Qf6 (18...e5 19.Rg1=) 19.Qf3 Qf3 (19...Qe7 20.Qe2=) 20.Bf3 Ng5 (20...e5!?=) 21.Bg4 (21.Be2 g6+=) 21...Ke7 22.Rg1 h5 (22...Raf8 23.Be2 Kf6 24.f4+=) 23.Be2+/– Kf6 24.h4 (24.f4 Nf7+/–) 24...Nf7+= 25.Kd2 (25.f4 Nh6+/–) 25...g6 (25...g5 26.Rg2+=) 26.Rg3 (26.Rg2 e5+/–) 26...Nh6 (26...g5 27.Rh1+=) 27.Rag1+/– Rhg8 28.Bd3 Attacks the backward pawn on g6 (28.Rf3 Nf5+=) 28...Nf5 29.Bf5 ef5 30.f4 (30.a4 a5 31.Kc3 ab4 32.Kb4 Rae8+=) 30...b6 (30...b5 31.cb6 ab6 32.Rc1=) 31.Kc3 (31.Rb1 bc5 32.bc5 Rab8+=) 31...bc5 32.dc5 a5 33.Rb1 (33.b5 cb5 34.Kd4 b4=) 33...ab4+= 34.ab4 Ra3 35.Rb3 Ra1 36.b5 (36.Kb2 Rga8 37.b5 R8a2 38.Kc3 Rc1 39.Kd3 Rd1 40.Kc3 Ra5+=) 36...Rc1–/+ 37.Kd4 (37.Kd3 Rc5 38.b6–/+) 37...Rc4 (37...Rb8 38.b6 Rc4 39.Kd3 Rc5 40.Kd4 Rc4 41.Kd3–/+) 38.Kd3+= Rc5 39.b6 (39.bc6 Rc6 40.Rb5 Rd8–/+) 39...Rb8 40.Kd4 Rc4 41.Kd3 c5 Black plans d4 (better is 41...Rb7–/+) 42.Rg1? (42.Rb5 Rb7–/+) 42...Ra4 (better is 42...Rb4 43.Rb4 cb4–+) 43.Rb5–/+ Ra3 44.Ke2 d4 (better is 44...c4–/+) 45.Rc1? (better is 45.ed4 cd4 46.b7=) 45...Re3–+ 46.Kd2 Rf3 (better is 46...Re6 47.b7 Re7 48.Rb6 Kf7 49.Rc5 Rbb7 50.Rb7 Rb7–+) 47.Rcc5+= Rf4 48.Rc6 (48.b7 Rh4 49.Rc8 Rb7 50.Rb7 Ke5=) 48...Ke7 49.Rg6 (49.Ra5 Rh4 50.Ra7 Kf8=) 49...Kf7 (49...Rh4!? 50.Rf5 Ra8+=) 50.Rc6 (50.Rg5 Rh4 51.Rgf5 Ke6=) 50...Ke7 51.b7 Kd7 (51...Rh4? 52.Rc8 Rb7 53.Rb7 Kf6 54.Rf8 Kg5 55.Kd3+–) 52.Rbb6?? (52.Rh6 Rh4 53.Rf5 Re4=) 52...Rh4?? (better is 52...Rb7! 53.Rd6 Kc8 54.Rbc6 Rc7–+) 53.Rd6+= Kc7 54.Rdc6 Kd7 (54...Kd8 55.Rd6 Kc7 56.Rdc6 Kd7 57.Rd6 Kc7=) 55.Rd6+= Kc7 56.Rdc6 Kd7 ½–½. alaamattar (2260) – capacuba (2215), net–chess.com, 2008.

7.Nc3 e5 8.d4 e4 9.Ne5 =.

7.Nc3 h6 8.d4 Be7 9.c5 Qc7 10.Bd3 0-0 11.0-0 Bd3 12.Qd3 b6 13.h3 (13.Rfb1 Rfb8=) 13...Rfb8 14.Qc2 a5 (14...Qb7 15.Ra2=) 15.Rfb1 Qb7 16.Nd2 (16.Bc1 Qa6 17.Ra2 Qc8=) 16...ab4+= 17.ab4 Ra1 18.Ba1 Ra8 19.Bb2 Bd8 20.Ra1 Ra1 21.Ba1 Nf8 22.cb6 Qb6 23.Qa4 N8d7 24.b5 cb5 25.Nb5 Qc6 26.Bc3 Be7 27.g3 Bf8 (27...Nb6 28.Qa5+=) 28.Qa5 Nb8 29.Bb4 (29.Na7 Qb7+=) 29...Qc1 30.Kg2 Nc6 31.Qa3 Qd2 32.Bd2 Ba3 33.Na3 Ne4 34.Be1 Nd6 35.Nc2 Kh7 36.Nb4 Nb4 37.Bb4 Nc4 38.Kf3 f5 (38...g5 39.Ke2=) 39.h4 (39.Ke2 g5=) 39...g5 40.Ke2 Kg6 41.Bc5 ½–½. Degterev,Pavel (2275) – Sheppard,Barry (1910), RA–2008–0-00025, 2008.

7.c5 h6 8.d4 Be7 9.Bd3 Bg4 10.h3 Bf3 (10...Bh5 11.0-0=) 11.Qf3+= e5? (better is 11...a5+=) 12.de5+– Ne5? (better is 12...Ne4+–) 13.Be5 (13...0-0 14.0-0+–) 1–0. Caissa – 300SPARTANS, Live Game Caissa's Web, 2004.

7.d3 dc4 8.dc4 c5 9.Qa4 =.

7.d3 Rc8 8.Be2 Bd6 9.Nbd2 Bb8 10.Rc1 (10.0-0 0-0 11.Qc2 Qe7 12.e4 Bg6 13.h3 h6) 10...Qc7 (10...h6 11.Qb3= (11.0-0 0-0 12.cd5 ed5 13.Nb3 Qb6) 11...0-0 12.0-0 Bd6 13.Nd4 Qe7; 10...0-0 11.cd5 cd5 12.Rc8 Qc8 13.0-0 Bd6) 11.Qb3 (11.cd5 ed5 12.Nh4 (12.Nd4 Be6 13.f4 Nb6) 12...Be6+= 13.f4 Nb6) 11...h5 (11...h6 12.Nf1= (12.cd5 ed5 13.e4 Be6) 12...dc4 13.dc4 0-0; 11...0-0 12.cd5 ed5 13.Nd4 Bg6) 12.cd5 ed5 13.Nd4 (13.h3 0-0) 13...Bg4 (13...Bh7 14.h3=; 13...Bg6+=) 14.Bg4 (14.f3!? should be investigated more closely 14...Be6 15.Ne6 fe6 16.d4+=) 14...hg4= 15.g3 g6 (15...Ne5 16.Rc3=) 16.Ne2 Rh5 (16...Ne5 17.d4 Nf3 18.Nf3 gf3 19.Ng1=) 17.Nf4 Rf5 (17...Rh6 18.b5+=) 18.e4 (18.h3!? Ke7 19.hg4 Ng4 20.b5+/–) 18...de4 (18...Rf4 19.gf4 Qf4 20.Bd4=) 19.de4 Rb5?? (better is 19...Rf4 and Black has air to breath 20.Rc2 Ke7=) 20.a4 Rg5 (20...Re5 21.h3 (worse is 21.Be5 Ne5 22.h3 gh3+/–) 21...gh3 22.Rh3+– Ke7+–) 21.h4 (better is 21.h3 Nh5 22.hg4 Nf4 23.gf4 Rg4 24.e5 Rf4 25.Nc4 Rc4 A) 26.Rc4?! Nf8+– (26...Ne5 27.Re4 Qe7 28.Rh8 Kd7 29.Qh3 f5 30.Rh7+–); B) 26.Qc4+–) 21...gh3? (better is 21...Re5 22.Kf1 Rd8+/– (22...Ne4?? the pawn is indigestible 23.Ne4 Re4 24.h5+–)) 22.Rh3+– Ne5 (22...Nh5 praying for a miracle 23.Ne6! it's all over 23...fe6 24.Qe6 Kf8+–) 23.Ne6! Nd3 24.Qd3 fe6 25.Bf6 Rh5 26.Rh5 gh5 27.Qf3 Qf7 28.e5 Rc7 29.Rc3 Rd7 30.Rd3 Rd5 31.Rd5 cd5 1–0. Chirica,Bogdan – Frantsouzova,L, Centrocoop op, 1997.

7.d4 Qc7 8.Nbd2 Be7 9.Be2 0-0 10.Nh4 Bg6 (10...Be4 11.0-0=) 11.c5 e5 12.0-0 e4 13.Ng6 hg6 (13...fg6 14.Qc2+=) 14.f4 (14.Qc2 Rae8+=) 14...ef3 (14...b6 15.Qc2+=) 15.Bf3 (< 15.Nf3 Ng4 16.Qd3 Bg5=+) 15...Rfe8 16.e4 de4 17.Ne4 Ne4 18.Be4 Bf6 (18...Bg5 19.Qf3 Nf6 20.Rae1+=) 19.Qc2 Nf8 20.Bf3 Rad8 21.Rad1 Qf4 (21...Ne6 22.d5 Bb2 23.Qb2 cd5 24.Bd5+=) 22.d5+/– Bb2 23.Qb2 Qe3 24.Kh1 cd5 25.Bd5 Rd7 26.h3 (better is 26.Qa2 Kh8 27.Qc4+/– (27.Rf7?? Rf7 28.h3 Rd8–+; 27.Bf7?? Rd1 28.Bc4 Red8–+)) 26...Red8?? (better is 26...Nh7+=) 27.Rf7!+– Ne6 (27...Rf7 28.Bf7) 28.Rd7 Rd7 29.Be6 Qe6 30.Rd7 Qd7 31.Qb3 Kh7 32.Qf3 Qe7 33.Kh2 a5 34.Qd5 ab4 35.ab4 Qe3 36.Qf3 Qe5 37.Qg3 Qb2? 38.Qf4 Qc3? 39.Qe4 Qb2 40.h4 Kh6 41.Kh3 Qb3 42.g3 Qa2 43.Qb7 Qe6 44.Kh2 Qe2 45.Qg2 Qc4 46.Qd2 Kh7 47.Kg2 Qe4 48.Kf2 Qf5 49.Qf4 Qc2 50.Kf3 Qd3 51.Kg2 Qe2 52.Kh3 Qe6 53.Qg4 Qe1 54.Qc4 Qh1 55.Kg4 Qd1 56.Kf4 Qd2 57.Ke5 Qe3 58.Kd5 Qf3 59.Qe4 Qf7 60.Kc6 Qf8 61.Kb5 Qb8 62.Kc4 Qg3 63.c6 Qg1 64.b5 Qc1 65.Kb4 Qb2 66.Kc5 Qf2 67.Qd4 Qf8 68.Kb6 Qb8 69.Ka5 Qa8 70.Kb4 Qf8 71.Kc4 Qf7 72.Kc5 Qf8 73.Kb6 Qb8= 74.Ka6 Qc8 75.Ka5 Qa8 76.Kb4 Qf8 77.Qc5 Qf4 78.Ka5 Qd2 79.Kb6 Qd8 80.c7 Qc8 81.Ka7 (81...Qd7 82.Kb8+–) 1–0. Ruhle,Ernst Albrecht – Kuemin,Simon, Wangs Pizol op, 1996.

7.d4 Ne4 8.Nc3 Nc3 9.Bc3 h6 10.Bd3 g5 (better 10...dc4!? 11.Bf5 ef5=) 11.Bf5+/- ef5 12.cd5 cd5 13.Ne5 Ne5 14.de5 Bg7 15.0-0 Rc8 16.Qd3 Qd7 17.Rfd1 0-0 18.Bb2 Rfd8 19.h3 Qe6 20.Rac1 Be5 21.Be5 Qe5 22.Rc8 Rc8 23.Qd5 Qd5 24.Rd5 Rc1 25.Kh2 Ra1 26.Rd8 Kg7 27.Rd7 Ra3 28.Rb7 a6 29.Rb6 f6 30.Kg3 Ra4 31.Kf3 Kg6 32.Kg3 a5 33.b5 Rb4 34.Rb8 a4 35.b6 a3 36.b7 a2 37.Ra8 Rb7 38.Ra2 Rb3 39.Ra8 Rb2 40.Kf3 Kf7 41.Ra7 Kg6 42.Ra8 Rb5 43.Ra7 Rc5 44.Re7 Re5 45.Rd7 Re6 46.Rc7 Rb6 47.Ra7 Rc6 48.Ra8 Rd6 49.Rg8 Kf7 50.Rb8 Kg6 51.Rg8 Kh7 52.Ra8 Kg7 53.g3 Kg6 54.Ra7 Re6 55.Rb7 Re8 56.Rd7 Re6 57.Rd5 Rc6 58.g4 Rc2 (better 58...fg4!? 59.hg4 h5=) 59.gf5+/- (59.Rf5?! Ra2+=) 59...Kg7 60.Rd7 Kf8 61.Rh7 Rc5 62.e4 Rc3?? (62...Kg8!? 63.Rh6 Kg7 64.Rg6 Kf7 65.Kg4+-) 63.Kg4+- Rc2?? (63...Kg8 64.Ra7 Kf8 65.Kh5+-) 64.f3 (better 64.Kh5 Rf2 65.Kh6 Ke8+-) 64...Rg2?? (64...Rc3 65.Kh5 Rf3+-) 65.Kh5 Rg3 (65...Rd2 66.Kh6 Ke8 67.Kg6+-) 66.Kg6 Rf3 67.Rh6 (better 67.Kf6 Ke8 68.Rh6+-) 67...Rf4 (67...Ke7+-) 68.Kf6 Kg8 69.Kg5 (69.e5 Rc4 70.e6 Rc6+-) 69...Re4 70.h4 (better 70.Re6 Rb4 71.Kg6 Kf8+-) 70...Re1 71.h5 Rg1 72.Kf6 Rg2 (72...Rf1+-) 73.Rg6 Rg6 74.fg6 Kh8 (74...Kf8 75.g7 Ke8 76.h6 Kd7 77.h7 Kd6 78.g8Q Kc6 79.Qb3 Kc5 80.h8Q Kd4 81.Qh5 Ke4 82.Qe5) 75.h6 Kg8 76.g7 Kh7 77.Kf7 Kh6 78.g8Q (78.g8Q Kh5 79.Qg3 Kh6 80.Qg6) 1-0. GM_HUSARZ (2145) - emreon3 (2025), Rated Bullet game, lichess.org, 2015. .Ka5 Qc5 65.Ka4 Nc6 66.Kb3 Nd4 67.Ka4 Qc4 68.Ka5 Qb5) 64.Kc5 Qc4 65.Kd6 (65.Kb6 Qc6 66.Ka5 Qc5 67.Ka4 Nd3 68.Kb3 Qb4 69.Kc2 Qb2 70.Kd1 Qd2) 65...Qd4 (65...Kf4 66.Ke7 Qc7 67.Ke6 Qd7 68.Kf6 Qf7) 66.Ke6 (66.Ke7 Kf4 67.Kf8 Qd6 68.Ke8 Qe6 69.Kd8 Qd7) 66...Nc4 (66...Kf4 67.Kf6 Qd6 68.Kg7 Qg6 69.Kf8 Qf7) 67.Kf5 (67.Ke7 Qd6 68.Kf7 Ne5 69.Ke8 Qe6 70.Kd8 Qd7) 67…Qd5 (67...Qd5 68.Kf6 Qe5 69.Kf7 Qd6 70.Kg7 Ne5 71.Kh8 Qh6 72.Kg8 Qg6 73.Kf8 Qf7; 67...Qe5 68.Kg6 Nd6 69.Kh6 Qf6 70.Kh5 Ne4 71.Kg4 Qf4 72.Kh5 Qg5) 0-1. upep (2115) - Kobylka (2040), Rated Blitz game, lichess.org, 2014.

7.Nd4 Be4 8.d3 Bg6 =.

7.cd5 Nd5 8.Nc3 Nc3 9.Bc3 Nf6 =.

7.Be2 a6 8.0-0 Bd6 (8...dc4 9.Bc4 b5 10.Be2=) 9.h3 (9.c5 Bc7+=) 9...0-0 (9...dc4 10.Bc4 b5 11.Be2=+) 10.d3 Re8 11.Nbd2 e5 12.cd5 cd5 (< 12...Nd5 13.e4 Be6 14.ed5 Bd5 15.Ne4+–) 13.Rc1 Qb6 14.Qc2 (14.e4 de4 15.de4 Be6+=) 14...Nf8 (14...a5 15.ba5 Qa5 16.Qb3=+) 15.Rfe1 Rac8 16.Qb3 Ng6 17.Nb1 Be6 18.d4 e4 19.Nfd2 Bb8 20.Nf1 Qd6 21.Nc3 Nh4 22.Qd1 h6 23.Na4 Rc1 24.Bc1 Bc8 25.b5 Nh7 (25...ab5 26.Bb5 Bd7 27.Qb3=+) 26.ba6= ba6 27.Kh1 Qg6 28.Ng3 Bg3 29.fg3 Qg3 30.Bf1 (better is 30.Rg1–+) 30...Bh3! 31.Re2 (31.gh3 Nf3) 31...Bc8 32.Nc5 Nf5 33.Qe1 Ng5 34.Bb2 Qg4 35.Kh2 Qh5 36.Kg1 Nh4 37.Qg3 Nf5 38.Qf4?? (38.Qe1 Qg6 39.Kh2–+) 38...Qg6–+ 39.Kh2 Ne6 40.Rf2?? (40.Qf2–+) 0–1. Semenko,Georg(Jurko) (1750) – Reer,Erdmann (2005), 5sen. BayEM Schney, 1993.

7.Be2 b6 8.Nh4 (8.cd5 cd5 9.0-0 Bd6=) 8...Bb1 9.Rb1 a5 (9...dc4 10.Bc4 b5 11.Be2=) 10.Nf3 (10.b5 cb5 11.cb5 Bd6=) 10...ab4 11.ab4 Bb4?? (better is 11...dc4 12.Bc4 b5=) 12.Bf6+– Be7 (better is 12...Bd2 13.Qd2 Qf6 14.cd5 ed5+–) 13.Bc3 0-0 14.Ne5 Rc8? 15.Nd7 Qd7 16.Rb6 Rb8 17.Rb8 Rb8 18.0-0 Qb7 19.cd5 cd5 20.Qa1 Ra8 21.Qb2 Qb2 22.Bb2 Bb4 23.Bc3 Bc3 24.dc3 Ra2 25.Rb1 Threatening mate: Rb8 25...g6 26.Bf1 Rc2 27.Rb3 h5 28.g3 Kg7 29.Kg2 f5 30.Bd3 Rc1 31.Bb5 Kf6 32.Bd7 Rc2 33.Rb6 Rc3 34.Be6 Ke5 35.Bf7 d4 36.ed4 Kd4 37.Bg6 (37.Bg6 Ke5 38.f4 Ke4 39.Re6 Kd4 40.Bf5+–) 1–0. Makri,B – Stefani,I, GRE–ch (Women), 1992.

7.Be2 h5 8.0-0 (8.cd5 cd5 9.0-0 a5+=) 8...Bg4 (8...dc4 9.Bc4 Bd6 10.d3=) 9.d3 Bf3 10.Bf3 Bd6 (10...dc4 11.dc4 Qc7 12.Qe2=) 11.Nd2+= Kf8 (11...Qb8 12.h3+=) 12.Be2 (12.h3 Rh6+=) 12...Kg8 13.Qc2 e5 14.h3 Nf8 15.Nf3 (15.d4 ed4 16.Bd4 Ne6+–) 15...Qe7 Black plans e4 (15...Ng6 16.Rac1+–) 16.Rfc1 (16.c5 Bc7+–) 16...Rh6 17.b5 (17.c5 Bc7+=) 17...cb5+= 18.cd5 Nd5 19.d4 e4 20.Nd2 Nf6 21.Bb5 Rg6 22.Bf1 (22.Bc4 N8d7+=) 22...Rd8 23.Nc4 N6h7 (23...Nd5 24.Ne5 Be5 25.de5+=) 24.Nd6 Rdd6 25.Kh2 (25.Qc7 Qh4 26.g3 Qf6+–) 25...Ng5 26.Bc3 Nf3 27.Kh1 Rc6 28.Qb2 (28.Rab1 Qh4 29.Bb5 Qg5=) ½–½. unrulyqueen (2350) – lephenix (2255), gameknot.com, 2020.

7.Ne5 Bd6–/+ 8.Nd7 Qd7 (worse 8...Kd7 9.Nc3=) 9.Be2 h5 (9...dc4 10.Bc4 b5 11.Be2–/+) 10.b5 (10.cd5!? ed5 11.Bd4=+) 10...dc4–/+ 11.Bc4 cb5 12.Be2 a6 13.Nc3 (13.Bf6 gf6 14.Bh5 0-0-0–/+) 13...h4 14.d4 h3 (14...Rc8 15.Bf3–+) 15.g4 Bg6 16.Qb3 (16.d5 Bc7–/+) 16...Qc6 (16...0-0 17.Rc1–+) 17.Kd2 (17.d5!? Nd5 18.Bf3–/+) 17...0-0 18.f3 Rfd8 19.Raf1 (19.Rac1 Qb6 20.g5 Nh7–+) 19...Rac8 20.f4 (20.Rc1–+) 20...Ne4 21.Ne4 Be4 (better 21...Qe4!? 22.f5 ef5 23.Bf3–+) 22.Rc1 Qd5 (22...Qd7!? 23.Rc8 Rc8 24.Rc1 Rc1 25.Bc1–+) 23.Qd5 ed5 24.Rc8 Rc8 25.Rc1 Rc1 26.Bc1 b4 27.a4?? (better 27.ab4 Bb4 28.Kd1–+) 27...g5! 28.Ke1 (28.fg5 Bh2 Pinning (28...Bh2 Deflection)) 28...b3 29.Kf2 (29.Bb2 gf4 30.ef4 Bg2–+) 29...gf4 30.ef4 Bf4! (30...Bf4 31.Bb2 Bg2–+) 0–1. De Moraes,Maurino Anastacio (1740) – Umetsubo,CH (2190), Aberto Copercampos, 2011.

7.h3 a5 8.b5 =.

7.h3 Bd6=+ 8.Nh4 (8.Nd4 Bg6=+) 8...Be4 (8...Bb1!? 9.Rb1 0-0=+) 9.d3= Bg6 10.Ng6 hg6 11.Nd2 b5 (11...e5 12.Be2=) 12.c5 Be5 (12...Bc7 13.Nf3=) 13.Qc2 (13.d4 Bc7=) 13...a5 (13...Bb2 14.Qb2 e5 15.d4=) 14.Be5 Ne5 15.Qb2 Qc7 (15...Ned7 16.d4=) 16.Be2 (16.d4 Ned7=) 16...0-0 (16...g5 17.d4 Ng6 18.Bd3=) 17.Nf3 (17.d4 Nc4 18.Bc4 dc4=) 17...Nf3 18.Bf3 e5 19.e4 (19.0-0 g5=) 19...de4 (19...Rfd8 20.0-0=+) 20.de4= Rfd8 21.0-0 Rd4 22.Rad1 Rad8 23.Rd4 Rd4 24.Re1 a4 25.Re3 Qd8 26.g3 Kh7 27.Kg2 Qd7 28.g4 g5=+ 29.Qa1 Ne8 30.Qb2 Nc7 31.Kg3 Ne6–/+ 32.Qa1 Nf4 33.h4 gh4 34.Kh4 Ng6 35.Kg3 Kg8 36.Qh1 Qd8 37.Be2 Qg5 38.Kg2 Nf4 39.Kf1 g6 40.Qf3–/+ Kg7 41.Qg3 Rd8 42.Ke1=+ Rh8 43.Bf3?? Qd8 44.Bg2 Qd4 45.Qf3 Qa1 46.Qd1 Ng2 47.Ke2 Qd1 (48.Kd1 Ne3 49.fe3 Rh2–+; 47...Nf4 48.Kd2 Qb2 49.Qc2 Rd8 50.Rd3 Rd3 51.Ke1 Qa1 52.Qd1 Qd1) 0–1. Vasconcelos,Arquimedes – Rigos,Marcos, It (open) Sao Paulo (Brazil), 1995.

7.h3 Be7 8.Nc3 0-0 9.Be2 dc4 10.Bc4 Nb6 11.Be2 Ne4 12.g4 Bg6 13.Ne5 Nc3 14.Bc3 Bf6 15.Qb3 Be4 16.Bf3 Bf3 17.Nf3 1–0. combijack (1815) – sidail (1710), gameknot.com, 2012.

7.h3 Be7 8.cd5 cd5 9.Ne5 Ne5 10.Be5 Bd6 (10...0-0!?=+) 11.Bb5= Kf8 12.Bb2 (12.Bd6 Qd6 13.d4 a5=) 12...Ne4 (12...a5 13.Qb3=) 13.0-0 (13.d3 Nf6=) 13...Qg5 14.f4 Qg6 15.g4? (better 15.Rf3=+) 15...Bg4?? (better 15...h5 16.d3 hg4–+) 16.Qg4+– Qg4 17.hg4 Rc8 (17...a6 18.Ba4+–) 18.Nc3 (18.d3 Nf6 19.g5 Ng4+–) 18...Nc3 (18...Nd2 19.Rfd1 Nc4 20.Bc4 Rc4 21.Nb5+–) 19.dc3 (19.Bc3 a6 20.Be2 f6+–) 19...a6 20.Bd3 White plans f5 (20.Be2 Rg8+–) 20...b5? (20...h5 21.gh5 Rh5 22.e4+–) 21.f5 (21.a4 h5 22.ab5 ab5 23.gh5 Rh5 24.Bb5 Rb8+–) 21...ef5 (21...Ke7 22.a4 Be5 23.Ra3+–) 22.Rf5 (22.gf5?! Be5+–; 22.Bf5?! Rc4 23.a4 g6+–) 22...f6 (22...Ke7 23.a4 Rhd8 24.ab5 ab5 25.Bb5+–) 23.Rd5 Be5 (23...Ke7 24.Rd1+–) 24.Rc1 (24.a4 h5+–) 24...Kf7 (24...Ke7 25.Bf5 Rc7 26.Rcd1+–) 25.Rc2 (better 25.Rd7!? Kf8+–) 25...Ke6 (25...Rc7 26.a4! Ke6 27.e4 ba4 28.Ra5+–) 26.e4 (26.Rc5 Rc5 27.bc5 Rb8+–) 26...Rc7 (26...Rc6 27.a4! ba4 28.Ra5+–) 27.c4 (better 27.a4 ba4 28.Ra5 Rd8 29.Ba6 Rd1 30.Kf2 Rd4 31.Ra4 Re4+–) 27...bc4?? (27...Bb2 28.Rb2 bc4+–) 28.Bc4 (28.Be5 fe5 29.Bc4 Rhc8 30.Rc5 Ke7 31.Re5 Kd8 32.Rd2 Rd7 33.Rd7 Kd7 34.Ba6 Rc3 35.Bb5 Kd6 36.Rd5 Ke6+–) 28...Bb2 (28...Rc4 29.Re5! fe5 30.Rc4 Rd8+–) 29.Rd8 (29.Rc5 Kd7 30.Rd2 Kc8 31.Ba6 Kb8 32.Rb2 Re8 33.Rc7 Kc7 34.Rc2 Kb6+–) 29...Ke7 (better 29...Rc4 30.Rc4 Rd8–+) 30.Rh8+– Ba3 31.Rh7 Kd6 32.Bb3 (32.Ra2 Bb4 33.Ra6 Ke5 34.Re6 Kf4 35.Rf6 Ke4 36.Re6 Kf3 37.Be2 Kg3 38.Re3 Kf4 39.Rf3 Ke5+–) 32...Re7 (32...Rc2 33.Bc2 Bb4 34.Rg7+–) 33.Rd2 (33.Rh5 Rb7+–) 33...Ke5 34.Bd5 (better 34.Bc2!? Bb4 35.Rd5 Kf4 36.Rf5 Kg3+–) 34...Bb4 35.Ra2 a5 36.Kf2 (36.Rh5 Kd4+–) 36...Kf4 37.Ke2 Kg4 38.Kd3 Kf4 39.Kc4 (better 39.Rg2!? a4+–) 39...Ke5 40.Kb5 (40.Rg2 g5 41.Re7 Be7+–) 40...Rc7? (better 40...f5 41.Re2 fe4 42.Be4 Kd6+–) 41.Kb6 (41.Ra5?! Ba5 42.Rh5 g5 43.Ka5 Rg7=) 41...Re7 42.Kc6 (42.Rg2 g5 43.Re7 Be7 44.Ka5 f5+–) 42...Kd4 (42...f5+–) 43.Rd2 (43.Rg2 a4+–) 43...Ke3 (better 43...Bd2 44.Rh2 Bc3–+) 44.Rg2+– g5 45.Re7 (better 45.Rh3 Kf4+–) 45...Be7 46.Rh2 1–0. zomboeb (1775) – Ates_Ertugrul (1780), lichess.org, 2021.

7.h3 h6 8.Be2 (8.c5 a5=) 8...Be7 (8...dc4 9.Bc4 Nb6 10.Be2=) 9.0-0 (9.cd5 cd5 10.0-0 a5=) 9...0-0 (9...dc4 10.Bc4 Nb6 11.Be2=) 10.d3 (10.cd5 cd5 11.Nc3 a5=) 10...a5 11.ba5 (11.c5 Qc7=) 11...Qa5 (11...dc4 12.dc4 Qa5 13.Qe1=+) 12.Nbd2= Nc5 13.Qc2 (13.Nb3 Nb3 14.Qb3 Qa4 15.Qa4 Ra4=) 13...Rfd8 (13...Qa4 14.Qc3=+) 14.Ne5 (14.cd5 Nd5 (14...Rd5? 15.e4+–) 15.e4 Nf4=+) 14...Na4 (14...Nfd7 15.Nd7 Rd7 16.cd5 cd5 17.Nf3=+) 15.cd5 (15.Nb3 Qa7=+) 15...cd5 (Opening the c–file gets Black a lot of play) (15...Nb2 16.Qb2 Ba3 17.Ra3 Qa3 18.Qb7 cd5 19.Qf7 Kh7 20.Bh5 Nh5 21.Qh5 Bd3 22.Ndf3–/+) 16.Bd4 (16.Nb3!? Qb5 17.Bd4=+) 16...Rdc8–/+ 17.Qd1 Nc3 18.Qe1 Ne2 (18...Nb5 19.Nef3–/+) 19.Qe2 Rc2 (< 19...Ba3 20.Nb1 Qb4 21.Qa2+/–) 20.Rfd1 (20.Nef3 b5–/+ (20...Ba3?! 21.Qd1 Rd2 22.Nd2=)) 20...Rac8 (20...Ba3 21.Nef3 Qd8 22.Rab1=+) 21.Ndc4=+ Re2 22.Na5 Rcc2 23.Rf1 Ra2 24.Nb7 Ba3 25.Ra2 Ra2 26.Nd8 Be7 27.Ndf7 Bd3 28.Rc1 Bc2= 29.f3 Nh5 30.Kh2 Bf6 31.Ra1 Ra1 32.Ba1 Be7 33.Bd4 Ba4 34.Bb6 Nf6 35.Nd8 Bd8 36.Bd8= Nd7 37.Nd3 Kf7 38.Kg3 e5 39.Bc7 Ke6 40.f4 e4= 41.Ne5 Ne5 42.Be5+= g6 43.Bg7 h5 44.Kh4 Kf5 45.g4 hg4 46.hg4 Ke6 47.Kg5 Kf7 48.Bd4 Bb3 49.f5 gf5 50.Kf5 Kg8 51.Kg6 Bc4 ½–½. Dvoretska,Olena – Grigorenko,N, UKR–ch U12 Girls, 1998.

7.Nh4 Ne4 8.Nf5+/– ef5 9.d3 (9.cd5 cd5 10.Qb3 Nef6 11.Nc3 Nb8 12.Bd3 f4+/– 1.31) 9...Ng5 (9...Nef6 10.Qf3 a5 11.b5 cb5 12.cb5 Qb6+=) 10.Nc3 (10.cd5 cd5 11.Be2 Ne6 12.0-0 Bd6+/–) 10...dc4 11.dc4 Qc7 (11...Qe7 12.Be2 Ne4+=) 12.Bd3 (12.Qd3 f4+=) 12...f4 13.Qg4 (13.ef4 Qf4 14.Ne2 Qh4+/–) 13...Ne6 (13...Ne5 14.Qf5 fe3 15.Be2 ef2 16.Qf2=) 14.Bf5 h5 15.Qf3 Qe5 16.Be6 fe6 (16...Qe6 17.Ne4 A) 17...Qc4 18.Bg7 (18.ef4?! 0-0-0 19.Qe2 Qe6=; worse is 18.Qf4 Qe6+=) 18...Rg8 19.Qf4+/–; B) 17...fe3 18.Qe3 0-0-0+=) 17.Qf4+/– Qf4 18.ef4 0-0-0 19.0-0-0 Nf6 20.Rd8 Kd8 21.Re1 Kd7 22.Ne4 Rh6 23.Ng5 Ng4 24.f3 Nf6 (24...Bd6 25.g3 (25.fg4?! Bf4 26.Kc2 Bg5+/–) 25...Nh2 26.Nf7+– (26.Bg7?! Rg6 27.Rd1 Ke7+/–)) 25.Ne6 (25.Ne6 Bd6 26.g3+–; worse is 25.Re6 c5 26.b5 h4+–) 1–0. onny555 (1900) – nextdoor, gameknot.com, 2014.

7.Nh4 Bg4 8.f3 Bh5 +=.

7.Qb3 Bd6

8.Nc3 0-0 9.h3 Ne5 10.Ne5 Be5 11.f4 Bc3 (11...Bc7 12.Rc1+=) 12.Qc3= (12.Bc3? Ne4 13.Rg1 Qh4 14.g3 Ng3–+) 12...Ne8 13.Rg1 Qh4 14.g3 Qh6 15.c5 Qf6 (better is 15...f6!?=) 16.Qf6+/– Nf6 17.d3 Nd7? (better is 17...h5+/–) 18.g4+– Bg6 19.f5! ef5 20.gf5 Bh5 (20...Rae8 21.fg6 fg6+–) 21.Rg7 (21.Rg7 Kh8 22.Rf7 Nf6 23.Bf6 Kg8 24.Rg7 Kh8 25.Bd4+–) 1–0. Vasut,Karel (2165) – Majerik,Vladimir (2040), Havlickuv Brod Vysocina op–B, 2006.

8.c5 Bc7 =.

8.d4 a5 9.Nbd2 (9.c5 Bc7=) 9...ab4=+ 10.ab4 Ra1 11.Ba1 0-0 12.Be2 (12.Bc3 b6=+) 12...Qe7 (12...Qc7 13.Bc3=) 13.Bc3 (13.c5 Bc7=) 13...Ne4 (13...b6 14.0-0=) 14.Ne4 Be4 15.c5 Bc7 16.0-0 Ra8 (16...b6 17.Ra1=) 17.b5 (17.Nd2 Bf5=) 17...Nf6 (17...cb5 18.Nd2 b6 19.Ne4 de4 20.Qb5 bc5 21.Qc6=) 18.b6 Bb8 19.Rc1 (19.Ra1 Ra1 20.Ba1 Nd7=) 19...Nd7 (19...Ng4 20.h3 Nf6 21.Qd1=) 20.Nd2 (20.Qb2 Qf6=) 20...Bf5 21.Bf3 (21.Qd1 Ra3=) 21...e5 (21...Qh4 22.g3 Qh6 23.Qb2=) 22.g3 (22.Be2 Qe6=) 22...h6 (22...Qf6 23.Bd5 cd5 24.Qd5=+) 23.Bg2 ed4 (23...Be6 24.Qb2=) 24.ed4 Nf6 ½–½. Kuhlmann,Antonius Egidius J – Jung,R, CiF, 1986.

8.d4 dc4 9.Bc4 0-0 10.0-0 =+.

8.d4 h6 9.Nbd2= Ne4 10.Ne4 Be4 11.Nd2 Bh7 12.a4 Bc7 (12...0-0 13.Be2=) 13.g3 (13.Be2 dc4 14.Nc4 Be4=) 13...0-0 14.Bg2 Nf6 15.0-0 Re8 16.Rfe1 Ne4 17.Ne4 de4 (17...Be4 18.Be4 de4 19.Qc2=) 18.Red1 Qe7 19.f3 ef3 20.Bf3 e5 21.d5 e4 22.Bg2 cd5 23.Rd5 Rad8 24.Rad1 b6 25.c5 bc5 26.bc5 (worse is 26.Rc5 Rd1 27.Qd1 Bb6+=) 26...Kh8 (26...Rd5 27.Rd5 Bg6 28.Qb5+=) 27.Rd8 Rd8 28.Rd8 Bd8 29.Qd5 f6 30.Bd4 Bg6 31.h4 Qe8 32.h5 Bh7 (32...Bh5 33.Be4 Bg4 34.Qa8+=) 33.Qa8+/– Qe7 34.c6 (better is 34.Qb8+/–) 34...f5? (34...Qd6 35.Qc8 Bg8 36.Qd7 Qd7 37.cd7+=) 35.Ba7 (better is 35.Qa7!? Qa7 36.Ba7+–) 35...Bg8+/– 36.Bd4 (36.Bb8 Bb6 37.Bf4 Qa3+–) 36...Qd6 37.Qb7 (37.g4 f4 38.Qa7+= (worse is 38.Be4 fe3 39.Bg7 Kg7 40.Qa7 Bf7 41.Qe3 Qd1 42.Kh2 Qg4 43.Qd4 Bf6–+)) 37...Qg3 38.Qb1 (38.Qc8 Bc7 39.a5= (39.Qf5? Qh2 40.Kf1 Bc4 41.Ke1 Qg3 42.Kd2 Qg2 43.Kc3 Bg8–+)) 38...Qc7?? (better is 38...Bc7 39.Qb4 Qh2 40.Kf1 Qh5–/+) 39.Qb5+/– Qf7 40.a5 Qh5 41.a6 Qd1 42.Qf1 Qa4 43.Qf5 Qc6 44.a7 (44.Qe4 Qa6 45.Qe8 Qa5+=; 44.Be4?! Qa6 45.Qf8 Bf6+–) 44...Qc1 (44...Bb6 45.Bb6 Bd5 46.Qf8 Kh7 47.Bd4+–) 45.Kh2 (better is 45.Bf1 Bf6 46.a8Q Bd4 47.ed4 Qe3 48.Kh2 Qb3+–) 45...Qc7 (45...Bc7 46.Be5 Qa3 47.Bc7 Qa7+–) 46.Kg1 Qc1 47.Bf1 Qc6 48.Qf8 Qb7 49.Qg7! (49.Qg7 Qg7 50.Bg7 Kg7 51.a8Q+–) 1–0. Klekowski,Maciej (2115) – Labedz,Patrycja (1940), Rewal op–A, 2007. (=1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.a3 Bf5 5.b4 Nbd7 6.Bb2 e6 7.Qb3 Bd6)

7.Nc3 a5

8.b5 c5 9.d3 A) 9...Bd6 10.e4 (10.Nh4 d4 11.ed4 cd4 12.Ne2 Bg4 13.h3 Be2 14.Be2 Qb6 15.0-0; 10.h3 dc4 11.dc4 Ne5 12.g4 Bg6 13.Ne5 Be5 14.f4 Bc3 15.Bc3) 10...Bg6 11.ed5 ed5 12.Qe2 Kf8 13.Nd5 Nd5 14.cd5 Nb6 15.Ne5; B) 9...Nb6 10.Nh4 (10.Be2 Bd6 11.Nh4 d4 12.ed4 cd4 13.Na4 0-0 14.Nf5 ef5 15.0-0; 10.cd5 ed5 11.d4 Bd6 12.dc5 Bc5 13.Bd3 Bd3 14.Qd3 0-0 15.0-0; 10.Qe2 Be7 11.e4 Bg4 12.cd5 ed5 13.e5 Nfd7 14.h3 Be6 15.Qd2; 10.h3 dc4 11.dc4 Qc7 12.Qe2 Be7 13.g4 Bg6 14.g5 Nh5 15.Rd1) 10...d4 11.ed4 cd4 12.Ne2 Bc5 13.Nf5 ef5 14.g3 0-0 15.Bg2; C) 9...Be7 10.Be2 (10.h3 h5 11.cd5 ed5 12.Be2 0-0 13.0-0 Nb6 14.Ng5 Bd6 15.e4; 10.Nh4 Bg4 11.Be2 Ne5 12.f4 Be2 13.Qe2 Nfg4 14.0-0 Nd3 15.Qd3) 10...0-0 11.0-0 h5 12.Nh4 Bh7 13.Nf3 Bf5 14.Nh4 Bh7 15.Nf3.

8.b5 c5 9.d4 A) 9...dc4 10.Bc4 Bd6 11.0-0 0-0 12.Qe2 Rc8 13.Rfd1 Qc7 14.d5 Nb6 15.e4; B) 9...Rc8 10.cd5 (10.Rc1 dc4 11.Bc4 cd4 12.Qd4 Bc5 13.Qh4 0-0 14.0-0 Qe7 15.a4) 10...ed5 11.Be2 Be7 12.dc5 Nc5 13.Nd4 Bg6 14.0-0 0-0 15.Rc1; C) 9...Be7 10.Be2 (10.cd5 ed5 11.dc5 Nc5 12.Nd4 Bg6 13.Be2 0-0 14.0-0 Rc8 15.Rc1; 10.dc5 Nc5 11.cd5 ed5 12.Nd4 Bg6 13.Be2 0-0 14.0-0 Bd6 15.Rc1; 10.Nh4 Bg4 11.Nf3 0-0 12.cd5 ed5 13.Be2 c4 14.0-0 Bd6 15.h3) 10...dc4 11.Bc4 0-0 12.0-0 Qc7 13.Rc1 h6 14.Qe2 Rac8 15.Ba2.

8.b5 c5 9.cd5 ed5 10.d4 (10.Nh4 Be6 11.Qc2 d4 12.Ne4 Ne4 13.Qe4 Nf6 14.Qc2 Bd6 15.Nf5; 10.d3 Bd6 11.Be2 0-0 12.e4 Be6 13.0-0 d4 14.Na4 h6 15.Qd2; 10.Rg1 Bd6 11.g4 Bg4 12.Nd5 Ne5 13.Be5 Be5 14.Nf6 Qf6 15.Rg4) 10...c4 11.Be2 (11.Ne5 Be6 12.Be2 Bd6 13.f4 0-0 14.0-0 Qb6 15.Qd2) 11...Bd6 12.0-0 (12.Nh4 Be6 13.0-0 0-0 14.g3 Nb6 15.Qc2) 12...0-0 (12...Qc7 13.g3 0-0 14.Nh4 Bh3 15.Re1) 13.Nh4 Be4 (13...Be6 14.Qc2+= (14.g3 Nb6 15.Qc2) 14...Ne4 15.g3) 14.g3 (14.f3 Bg6 15.Ng6) 14...Qc7 (14...Qe7 15.f3 Bd3 16.Bd3 Qe3 17.Kg2 cd3 18.Nf5=; 14...h6 15.f3) 15.Ng2 (15.f3!? Bg3 16.fe4 (16.hg3?? Qg3 17.Ng2 Ng4 18.Re1 Qh2 19.Kf1 Qh1) 16...Bh4 17.e5 (worse is 17.ed5 Rae8+=; worse is 17.Nd5 Nd5 18.ed5 Rae8+=) 17...Ne5 18.Rf6 Bf6 19.Nd5+=) 15...Nb6 16.f3 Bg6 17.Qd2 (17.Nh4 Rae8 18.Ng6 fg6+=) 17...Rfe8 (17...Bf5 18.Rac1–/+) 18.Rfe1 (18.Nh4 Qd7+=) 18...Rac8 (18...Bf5 19.Nh4 Bh3 20.Bf1 Bg3 21.hg3 Qg3 22.Ng2 Qf3 23.Re2–/+) 19.Bf1 (19.Nh4 Qd7+=) 19...Qd7 (19...a4 20.Nf4 Bf4 21.ef4+=) 20.Nh4+= Bh5 21.Qc2 Bb8 (21...Be7 22.Bg2+=) 22.Bg2 Bg6 (22...a4!?=) 23.Ng6+= hg6 24.Rad1 g5 25.e4 g6 (25...g4 26.e5 gf3 27.Bf3+= (27.ef6?! fg2 28.Qg2 g6=)) 26.e5+/– Nh5 (26...Nh7 27.Bc1+/–) 27.Bc1 g4 (27...Qd8 28.Bh3 Rc7 29.Be3+/–) 28.Qe2 gf3 29.Qf3 Ba7 30.Rf1 (30.Bg5 Ng7+/–) 30...Rc7 31.Bg5 (31.Nd5 Qd5 32.Qd5 Nd5 33.Bd5 Re5+=) 31...Ng7 32.g4 (32.Nd5?! Nd5 33.Qd5 Qd5 34.Bd5 Re5=) 32...Re6 33.Bf6 (33.Nd5?! Nd5 34.Qd5 Qd5 35.Bd5 Re5=) 33...Ne8 34.g5 Nf6 35.gf6 (35.ef6?! Qe8+=) 35...Qd8 36.Qh3 (36.Nd5 Nd5 37.Qd5 Qd5 38.Bd5 Re5–+) 36...Qf8?? (36...Qc8+–) 37.Rf4 1–0. Wohl,A (2375) – Schloetzer,W (2280), 25th Open, Schwarzach AUT, 2010. (=1.a3 d5 2.e3 Nf6 3.c4 c6 4.Nf3 Bf5 5.Nc3 e6 6.b4 Nbd7 7.Bb2 a5)

8.b5 c5 9.h3 A) 9...h6 10.d4 (10.g4 Bg6 11.cd5 ed5 12.Nh4 Bh7 13.Nf5 Bf5 14.gf5 Bd6 15.Bg2; 10.d3 Nb6 11.Qe2 Be7 12.e4 Bh7 13.cd5 ed5 14.e5 Nh5 15.g3; 10.Be2 dc4 11.Bc4 Bd6 12.Qe2 Qc7 13.0-0 0-0 14.a4 Rfd8 15.d3; 10.Nh4 Bh7 11.Nf3 Bd6 12.Be2 dc4 13.Bc4 Nb6 14.Be2 0-0 15.0-0) 10...Be7 11.cd5 ed5 12.Bd3 Be6 13.dc5 Nc5 14.0-0 0-0 15.Bc2; B) 9...Bg6 10.d4 (10.Qb3 Nb6 11.Ne5 a4 12.Qd1 Bd6 13.Ng6 hg6 14.cd5 ed5 15.Bd3; 10.cd5 ed5 11.Nh4 Bd6 12.Ng6 hg6 13.Be2 0-0 14.0-0 c4 15.d3; 10.Be2 dc4 11.Bc4 Bd6 12.Be2 h6 13.0-0 0-0 14.a4 Qc7 15.Qb3; 10.g4 Nb6 11.cd5 Nfd5 12.Rg1 f6 13.g5 Nc3 14.Bc3 Nd5 15.Rc1) 10...cd4 11.Nd4 Nb6 12.cd5 Nbd5 13.Nd5 Qd5 14.Qa4 Bc5 15.Rd1; C) 9...Nb6 10.cd5 (10.g4 Bg6 11.cd5 Nfd5 12.Rg1 Nc3 13.Bc3 Nd5 14.Bb2 f6 15.h4) 10...ed5 11.g4 Be6 12.g5 Ne4 13.h4 Nd6 14.Bd3 Ndc4 15.Qc2; D) 9...Bd6 10.g4 Bg6 11.g5 Ne4 12.cd5 ed5 13.Nd5 Ne5 14.Be5 Be5 15.Ne5.

8.b5 Bc5 A) 9.Be2 A1) 9...0-0 10.d4 (10.0-0 dc4 11.Bc4 Nb6 12.Be2 Rb8 13.Rc1 h6 14.d4 Be7 15.Ne5; 10.cd5 cd5 11.0-0 Rc8 12.Rc1 Qe7 13.a4 h6 14.h3 Bd6 15.Nh4) 10...Be7 11.Nh4 Bg4 12.Bg4 Ng4 13.Qg4 Bh4 14.cd5 cd5 15.0-0; A2) 9...Ne4 10.0-0 (10.d3 Nc3 11.Bc3 0-0 12.bc6 bc6 13.0-0 dc4 14.d4 Bd6 15.Bc4; 10.Ne4 de4 11.Nd4 0-0 12.0-0 Bd4 13.Bd4 cb5 14.cb5 Qe7 15.f4; 10.cd5 cd5 11.Ne4 de4 12.Nd4 Bd4 13.Bd4 0-0 14.0-0 Qe7 15.f4) 10...0-0 11.Nd4 Bd4 12.ed4 dc4 13.bc6 bc6 14.Ne4 Be4 15.Bc4; A3) 9...cb5 10.cd5 (10.d4 Be7 11.Nb5 0-0 12.Rc1 dc4 13.Bc4 Rc8 14.Na7 Rc7 15.Nb5; 10.Nb5 dc4 11.Rc1 Rc8 12.Rc4 Nb6 13.Rc1 0-0 14.0-0 Nbd5 15.Qb3) 10...ed5 11.Nb5 0-0 12.0-0 Rc8 13.Rc1 Qb6 14.Nh4 Be6 15.f4; A4) 9...dc4 10.Bc4 (10.0-0 0-0 11.Bc4 Nb6 12.Be2 Nbd5 13.bc6 bc6 14.Qc1 Qe7 15.d3; 10.bc6 bc6 11.Bc4 Rb8 12.Na4 Bd6 13.0-0 0-0 14.d3 Ng4 15.e4) 10...0-0 11.d4 Bd6 12.0-0 c5 13.Rc1 Nb6 14.Be2 Rc8 15.Nh4; B) 9.bc6 bc6 10.d4 (10.cd5 cd5 11.d4 Be7 12.Nh4 Bg4 13.Qc2 Rc8 14.Ba6 Rb8 15.Rb1; 10.Rc1 0-0 11.cd5 cd5 12.Bb5 Qb6 13.0-0 h6 14.Nh4 d4 15.ed4; 10.Na4 0-0 11.Rc1 Qe7 12.Nc5 Nc5 13.Bf6 gf6 14.Nd4 Rfc8 15.Nf5; 10.Nh4 Bg4 11.f3 Rb8 12.Na4 Bh5 13.Nc5 Rb2 14.Qc1 Rb8 15.Na6) 10...Rb8 11.dc5 Rb2 12.Qd4 Rb3 13.cd5 ed5 14.Nd2 Rb8 15.Qf4; C) 9.d4 C1) 9...Bd6 10.c5 (10.Be2 dc4 11.Nd2 cb5 12.Nb5 Nb6 13.Nc4 Nc4 14.Bc4 0-0 15.0-0; 10.Nh4 Bg4 11.Be2 Be2 12.Qe2 dc4 13.bc6 bc6 14.Qc4 Rb8 15.Rb1) 10...Be7 11.Bd3 0-0 12.0-0 h6 13.h3 Ne4 14.Qc2 Ndf6 15.bc6; C2) 9...Be7 10.c5 (10.Bd3 dc4 11.Bc4 0-0 12.0-0 Qb6 13.Qe2 Rfc8 14.e4 cb5 15.Bb5; 10.Be2 0-0 11.Nh4 Bg4 12.Bg4 Ng4 13.Qg4 Bh4 14.cd5 cd5 15.0-0; 10.cd5 cd5 11.Bd3 0-0 12.0-0 Rc8 13.Bf5 ef5 14.Qd3 g6 15.Rfc1) 10...0-0 11.Bd3 Qb8 12.Bf5 ef5 13.0-0 Ne4 14.Qc2 Bf6 15.h3.

8.b5 Nc5 A) 9.bc6 bc6 10.Na4 (10.d4 Rb8 11.Ra2 Nce4 12.Ne4 Be4 13.Ne5 dc4 14.Bc4 Bg2 15.Rg1; 10.Nd4 Bd3 11.Na4 Bf1 12.Kf1 Rc8 13.Qc2 Bd6 14.Nc5 Bc5 15.f3) 10...Rb8 11.Be5 Nb3 12.Bb8 Na1 13.Qa1 Qb8 14.Nd4 dc4 15.Nf5; B) 9.d4 B1) 9...Ncd7 10.Rc1 (10.Bd3 dc4 11.Bf5 ef5 12.bc6 bc6 13.Qa4 Rb8 14.Rb1 Bd6 15.Qc4; 10.Be2 dc4 11.0-0 Bd6 12.Nd2 cb5 13.Nb5 Nb6 14.Rc1 0-0 15.Nc4; 10.h3 Be7 11.Bd3 0-0 12.0-0 dc4 13.Bc4 Qc7 14.bc6 bc6 15.Bd3; 10.c5 Be7 11.Bd3 0-0 12.0-0 h6 13.Qc2 Bd3 14.Qd3 cb5 15.Nb5) 10...Rc8 11.c5 Be7 12.Bd3 0-0 13.b6 Ne4 14.0-0 Ng5 15.Ng5; B2) 9...Nce4 10.Qa4 (10.Ne4 Be4 11.c5 Be7 12.Qa4 0-0 13.bc6 b6 14.Rc1 h6 15.Bc3; 10.bc6 bc6 11.Qa4 Qb6 12.Ne5 Qb2 13.Qc6 Ke7 14.Qc7 Ke8 15.Qc6) 10...Nc3 11.Bc3 Qc7 12.Ne5 Ne4 13.bc6 bc6 14.Bb4 f6 15.Nc6.

8.b5 Be7 9.Be2 0-0 (9...dc4 10.Bc4 0-0 11.bc6 bc6 12.d3=) 10.Nh4 (10.bc6 bc6 11.Nd4 Bd6+=) 10...Bg6 (10...Bg4! 11.Bg4 Ng4 12.Qg4 Ne5=) 11.Ng6+= fg6 12.d4 Rc8 13.bc6 bc6 14.0-0 Bd6 15.Rb1 Bb8 16.Qd2 Nh5 17.f4 Qh4 18.Bf3 Nf4 19.g3 (19.ef4?! Bf4 20.g3 Bd2 21.gh4 Be3 22.Kg2 Bd4 23.Nd5 cd5 24.Bd4 Rc4= (worse is 24...dc4 25.Bc3+/–)) 19...Nh3 20.Kg2 Qh6 21.Bg4 Ng5 22.cd5 Nf6 23.Rf6 (23.Be6!? Ne6 24.de6+/–) 23...Rf6 24.h4 (better is 24.e4!? cd5 25.e5+=) 24...Rcf8 (better is 24...cd5 25.Nd5 ed5 26.Bc8 Bg3–+) 25.e4+= 1–0. Humeau,Cyril (2200) – Cilla,Mario (1930), Ouest Toulousain op–A 4th, 2009.

8.cd5 Nd5 9.Nd5 ed5 10.Qb3 (10.b5 Qb6=) 10...a4 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Qc3= Nf6 12.Bd3 Bd3 13.Qd3 Ne4 14.0-0 f6 15.Nd4 Qd7 16.f3 Nd6 17.f4 Be7 (17...Nc4 18.Rab1=) 18.f5+= 0-0 19.Ne6 Rfc8 20.Nc5 Qe8 21.Qc2 b5 22.d3 h5 (22...Qh5 23.Qd1 Qd1 24.Rad1+=) 23.Qf2 Nf7 24.e4 (24.Rac1 Bc5 25.Rc5 Ra7+/–) 24...Bd6 (24...Bc5 25.Qc5 de4 26.Rae1=) 25.h3 (25.ed5 cd5 26.Rfe1 Qc6+/–) 25...Qe7 26.Rae1 Ng5 (26...Bc5 27.bc5 (27.Qc5?! Qc5 28.bc5 de4=) 27...Qd7 28.Qg3+/–) 27.Bc1 (27.h4!? Nf7 28.ed5+/–) 27...Bc5+/– 28.bc5 de4 29.Bg5 fg5 ½–½. De Visser,Arno – De Visser,D, 1982.

8.b5 Bd6

9.bc6 bc6 10.cd5 (10.Nd4 0-0 11.cd5 cd5 12.Bb5 Rc8 13.Nf5 ef5 14.0-0 Ne5 15.Qc2; 10.Ra2 0-0 11.Nd4 Rc8 12.Nf5 ef5 13.d4 Ne4 14.c5 Bc7 15.Ne4) 10...cd5 (10...Rb8 11.de6 Rb2 12.ed7 Qd7 13.Nd4 0-0 14.Qf3 Bg4 15.Qc6) 11.Nb5= Bc5 12.Nfd4 Be4 13.f3 Bg6 14.Be2 0-0 15.0-0.

9.d4 0-0 10.c5 Be7 11.Bd3 Ne4 12.0-0 Ndf6 13.Ne5 Nd7 14.Be4 de4 15.Nc4.

9.d4 Qb8 10.c5 Be7 11.Bd3 0-0 12.0-0 Bd3 13.Qd3 e5 14.Qf5 g6 15.Qh3.

9.d4 dc4 10.Bc4 0-0 11.0-0 h6 12.bc6 bc6 13.Bd3 Rb8 14.Rb1 Nd5 15.Ne4.

9.d4 dc4 10.Bc4 Rc8 11.bc6 Rc6 12.Bb5 Rb6 (12...Rc8!?=) 13.Qa4 0-0 14.Qa5 Bc7 15.Qa4 Qe7 16.Qc4 Rc8 17.Qe2 Ne4 18.Ne4 Be4 19.Bc1 Nf6 20.Bd2 Bc6 21.a4 Ne4 22.Bc6 Rc6 23.Qd3 Nd2 24.Qd2 Bb8 25.0-0 Qc7 26.g3 Rc2 27.Qb4 Qc6 28.Ne1 Rc3 29.Rb1 Qa6 (better is 29...Bd6!? 30.Qb6 Ra8+/–) 30.Qb7+– Qb7 31.Rb7 R3c4 32.a5 Ra4 33.Nd3 Ra5 34.Nc5 Bd6 35.Ne4 Bf8 36.h4 h6 37.Kg2 f5 38.Nd2 e5 39.Nb3 Rd5 40.de5 Re5 41.Nd4 g5 42.hg5 hg5 43.Nf3 Re7 44.Rb5 g4 45.Nd4 Rf7 46.Nf5 Rc2 47.Nd4 Rd2 48.Rg5 Rg7 49.Rb5 Rg6?? (49...Rf7 50.Nc6 Bd6+–) 50.Rb8 Kf7 51.Ra1 Rf6 52.Rb7 Kg6 53.Rf1 Bh6 54.Kg1?? Rdf2= 55.Re1?? Rd2 56.Re7 Rff2 57.Re6 Kh5 58.Re5 Bg5 59.Ne6 Rg2 60.Kh1 Rh2 61.Kg1 Rhg2 62.Kh1 Rh2 63.Kg1 Rhg2 64.Kh1 Rh2 65.Kg1 Rhg2 ½–½. combijack (1755) – oldtimer (1680), gameknot.com, 2010.

9.d4 dc4 10.bc6 bc6 11.Bc4 Rb8 12.Qd2 0-0 13.0-0 h6 14.g3 Qc7 15.Nh4.

9.d4 Bc7 10.Bd3 (10.c5 0-0 11.Qa4 Qb8 12.Be2 e5 13.0-0 ed4 14.ed4 Re8 15.g3; 10.Be2 0-0 11.0-0 Ne4 12.Rc1 Rc8 13.bc6 bc6 14.cd5 cd5 15.Nb5; 10.cd5 cd5 11.Bd3 Bd3 12.Qd3 Nb6 13.Nd2 0-0 14.0-0 Rc8 15.a4) 10...0-0 11.0-0 Nb6 12.cd5 Bd3 13.Qd3 cd5 14.Rfc1 Nc4 15.Rc2.

9.Nd4 0-0 10.Nf5 (10.cd5 cd5 11.Nf5 ef5 12.Qf3 Ne5 13.Qf5 g6 14.Qh3 Rc8 15.f4; 10.Ra2 Rc8 11.Nf5 ef5 12.bc6 bc6 13.d4 Re8 14.g3 Rb8 15.c5; 10.bc6 bc6 11.cd5 cd5 12.Bb5 Rc8 13.Nf5 ef5 14.0-0 Ne5 15.Qc2; 10.Rc1 Nc5 11.Na4 cb5 12.Nc5 Bc5 13.Nf5 ef5 14.cb5 Rc8 15.Bd3) 10...ef5 11.cd5 cd5 12.Qf3 Ne5 13.Qf5 g6 14.Qh3 Rc8 15.f4.

9.Nh4 Bg4 10.f3 (10.Be2 Be2 11.Qe2 0-0 12.Nf3 Nb6 13.cd5 cd5 14.d3 Rc8 15.0-0; 10.Qc2 0-0 11.bc6 bc6 12.h3 Bh5 13.cd5 Nd5 14.g4 Qh4 15.gh5; 10.Nf3 0-0 11.h3 Bf5 12.d4 dc4 13.Bc4 Nb6 14.Bd3 Nbd5 15.bc6; 10.Qb1 0-0 11.h3 Bh5 12.Qc2 Nc5 13.g4 Nfe4 14.Ne4 Ne4 15.Nf3) 10...Bh5 11.Be2 0-0 12.0-0 dc4 13.Bc4 Qc7 14.g3 g5 15.Ng2.

7.Nc3 a6

8.Rc1 dc4 9.Bc4 Nb6 10.Na4 (better 10.Be2=) 10...Na4–/+ 11.Bf6 gf6 12.Qa4 b5 13.Qb3 bc4 14.Qc4 Qd5 15.Qc3 (15.Ke2–+) 15...Bg7 (15...a5 16.Rg1 ab4 17.ab4–+) 16.Nh4? (better 16.Qc6!? Qc6 17.Rc6–/+) 16...Bd3–+ 17.f3 (17.Qc6 Qc6 18.Rc6 f5–+) 17...0-0 18.Qc6 Qc6 19.Rc6 Rfc8 20.Rc3 (20.Rc8 Rc8 21.Kf2 Rc2–+) 20...Rc3 (20...f5!? 21.Rc8 Rc8 22.Rg1–+) 21.dc3 f5 22.Kd2 Rd8 23.Rc1 Bb5 24.Ke1 Rd3 25.c4 Ba4 26.c5 (26.Kf2 Ra3 27.Rb1 Bf6–+) 26...Bb2 27.Rc4 Rc3 (27...Bb5 28.Rc2 Re3 29.Kf2–+) 28.Rf4? (28.Rc3 Bc3 29.Ke2–+) 28...Re3 29.Kd2 Ra3 30.g3 (30.Rc4 Bb5 31.Rc2–+) 30...Bc3 31.Ke2 (31.Ke3 Bb4 32.Kd4 Bc3 33.Ke3 Be5 34.Kf2 Ra2 35.Kg1 Bf4 36.gf4 a5–+) 31...Bb5 32.Kf2 Ra2 33.Kg1 Be5 (better 33...e5 34.Nf5 ef4 35.gf4 Bb4 36.Ng3 Bc5 37.Kh1–+) 34.Ng2 Bf4 35.Nf4 Rb2 36.c6 (36.Nh5 Rb4 37.Nf6 Kg7 38.Nh5 Kh6–+) 36...Bc6 37.Nd3 Rb1 38.Kf2 Bb5 (38...Bb5 39.Nf4 Rb4–+) 0–1. Williams,Barry – Palevich,Milan, NZL Club Championship A Reserve Wanganui Ch, 2001.

8.Be2 Be7 9.0-0 0-0 (9...dc4 10.Bc4 0-0 11.d4=) 10.Nh4 (10.cd5 cd5 11.Nh4 Nb6+=) 10...Re8 (10...dc4 11.Nf5 ef5 12.Bc4=) 11.Nf5 ef5 12.Qc2 g6 13.Rac1 Ne5 (13...dc4 14.Bc4 Nb6 15.Be2=) 14.cd5 (14.Nd5 Nd5 15.Be5 Nf6+/-) 14...cd5+= 15.d3 (15.d4 Nc6+=) 15...Rc8= 16.Qb3 Qd6 17.h3 Bd8?? (better 17...b5=) 18.Nb5!+- ab5 19.Rc8 Bc7 (19...Nfd7 20.Rc2+-) 20.Re8 Ne8 21.g3 Nf6 (21...Bd8 22.Qc3 f6 23.Qc5+-) 22.Rc1 Nh5 (22...Qe7+-) 23.Bh5 gh5 24.Qc3 Nf3 1-0. Lance5500 (2610) – SophiaPolgar, lichess.org, 2016.

8.h3 Ne4 (8...Bd6 9.g4 Bg6 10.g5=) 9.d3+= Nc3 10.Bc3 Nf6 11.c5 Be7 12.Be2 h6 13.Ra2 0-0 14.Qa1 Kh7 (14...a5 15.0-0+=) 15.g4 Bg6 16.g5 (16.Ne5 Ne8+=) 16...hg5 17.Ng5 Kg8 18.Rg1 (better is 18.h4 Bh5 19.Rg1+=) 18...Ne8? (better is 18...Bf5=) 19.Ne6!+/– fe6 20.Rg6 Bf6 21.Be5 (21.d4 Bh4 22.Bd3 Rf3+/–) 21...Qe7 (21...a5 22.Qd4+/–) 22.f4 (22.Rc2 a5 23.ba5 Ra5+=) 22...Kh7 (22...a5 23.Rg4+=) 23.Rg4 Be5 24.fe5 Qf7 (24...g6 25.Kd2 a5 26.Qe1+/–) 25.Qd4 Qf2 (25...Nc7 26.Rg5 Qf2 27.Kd2+=) 26.Kd2 Nc7 (26...Kg8 27.Ra1 Qh2 28.Rg5+–) 27.Ra1+– Nb5 28.Rh4 Kg8 29.Qg4 Qf5 30.d4 Nc7 (30...Qg4 31.Rg4 a5 32.ba5 Ra5 33.a4+–) 31.Rg1 Qg4 32.Rhg4 (32.Bg4?! a5 33.ba5 Rf2 34.Be2 Ra5+/–; 32.Rgg4?! a5 33.Bd3 ab4 34.Bh7 Kf7 35.ab4 Ra2 36.Ke1 Na6+/–) 32...Rf7 33.h4 a5 34.Rb1 (better is 34.Kc3!?+–) 34...ab4+/– 35.Rb4 Ra3 36.Rb7 Ra2 37.Kd3 (better is 37.Ke1!? Ra1 38.Bd1+/–) 37...Ra3= 38.Kd2 Ra2 ½–½. Macedo,A Soares (1870) – Queiroz,ME Silva (1840), Natal BRA, Potiguar Cup, 2014.

7.Nc3 dc4

8.Bc4 Nb6 9.Bb3 Be7 10.0-0 Bd3 11.Re1 Nc4 (11...a5!?+=) 12.Bc4= Bc4 13.Ne5 Bd5? (better is 13...Bd3=) 14.e4+– (14.Nd5?! Qd5 15.d3 Rd8=) 14...Be4 15.Ne4 (15.Re4?! Ne4 16.Ne4 0-0+/–) 15...Qd5 16.Nc3 Qd6 17.Na4 h5 18.Nc5 b6 19.Ne4 Qc7 (19...Ne4 20.Re4 Bf6+–) 20.Rc1 c5 21.Qa4 Kf8 (21...Nd7 22.bc5 bc5 23.Nc5 Bc5 24.Rc5+–) 22.bc5 b5 23.Qb5 Rb8 24.Qb8! Qb8 25.Nf6 (25.Nf6 Bf6 26.Nd7 Ke7 27.Nb8 Bb2 28.Nc6 Kd7 29.Ne5 Be5 30.Re5+–) 1–0. blackcrowman – Snicks, ChessWorld.net, 2012.

8.Bc4 Nb6 9.Be2 Qc7 10.Rc1 Bd6 11.Nb5 Qe7 12.Nd6 Qd6 13.d3 Qe7 14.Ne5 Nbd7 15.Nd7 Qd7 16.g4 Bg6 17.g5 Nd5 18.h4 f5 19.h5 Bf7 20.h6 Rg8 21.hg7 Bg6 22.Qa4 f4 23.e4 Nc7 24.b5! Nb5 25.Qb3 Rb8 26.Be5 Nd4?? 27.Bd4 Qd4 28.Qe6 Kd8 29.Qg8 (29.Qg8 Kc7 30.Qb8 Kb8 31.g8Q Kc7 32.Bg4+–) 1–0. pcmvr (2775) – phoenixd (2355), net–chess.com, 2008.

8.Bc4 Bd6 9.0-0 0-0 10.Qe2 (10.d4 a5=) 10...a5 (10...Nb6 11.Nd4+=) 11.e4 (11.Nd4 Bg6 12.b5 Ne5 13.bc6 bc6+=) 11...Bg4+= 12.d4 ab4 13.ab4 b5 (13...Ra1 14.Ra1 Bb4 15.h3+=) 14.Ra8 Qa8 15.Bd3 Bb4 16.Ra1 Qb7 17.e5 Bc3 18.Bc3 (18.ef6? Bf3 19.gf3 Bb2 20.Qb2 Nf6–+) 18...Bf3 19.Qf3 Nd5 20.Bb2 Ra8 21.Rb1 g6 22.h4 N7b6 23.Be4 Qe7 24.h5 Qb4 (24...Qh4 25.hg6 fg6 26.Bc1–/+) 25.Ba1 (25.Qd1 Ra2 26.Ba1 Qd2 27.Qd2 Rd2–/+) 25...Qd2–/+ 26.hg6 hg6 27.Rd1 Qa2 28.Bc3 (28.Qg3 Nc4–/+) 28...Ra3 (28...Nc3?! 29.Qc3 Qc4 30.Qc4 bc4 31.Bc6+=) 29.Ra1 Qb3 30.Bb2 Ra1 (30...Qb2 A) worse is 31.Qa3 Qd4 32.Bd5 Nd5–/+ (32...ed5?! 33.Re1=); B) 31.Ra3 Qc1 32.Kh2 Qh6 33.Kg3+/–) 31.Ba1 Qa4 32.Bc3 (better is 32.Bb2–+) 32...b4 (32...Nc3?! 33.Qc3 b4 34.Qc5–+) 33.Be1 Qa1 34.Kf1 Qd4 35.Qd3 Qd3 36.Bd3 b3 37.g3 (37.Ke2 Nf4 38.Kd2 b2–+) 37...b2 38.Ke2 Nc4! 39.f4 (39.Bc4 b1Q Combination) 39...Na3 40.Be4 (40.Kd2 c5 41.Bf2 c4–+) 40...c5 41.Kf3 c4 42.Bf2 c3 43.Bd4 Nb5 44.Bc5 Nb4! 45.Bb4 Nd4 (better is 45...c2 46.Bc2 Nd4 47.Ke4 Nc2 48.Be7–+) 46.Ke3 (46.Ke3 c2 47.Kd4–+). Fournier,Frederic (2320) – Vicerey(C) (2455), Active, 2008.

7.Nc3 Bd6

8.Rc1 0-0 9.d4 Ne4 10.Ne4 Be4 11.Ne5 (11.Nd2 Bf5=) 11...Ne5 (11...a5 12.b5+=) 12.de5 Bc7 13.Qh5 a5 14.b5 a4 15.f3 Ba5 16.Kf2 Bg6 17.Qg4 dc4 18.Qc4 Bd2 19.Ra1 cb5 20.Qb5 Qc7 (20...Qe7 21.Bd4 Rfc8 22.Bd3+=) 21.Be2 (21.Bd4 Rfc8+=) 21...Ra5 (21...Rfc8 22.Bd4+=) 22.Qc4= Qc4 23.Bc4 Rc5 24.Be2 Bc2 25.Bd4 Rcc8 26.Ra2 Ba5 27.Bb5 (27.Rb2 Bb3=) 27...Bb3 28.Raa1 Rc2 29.Kg3 Rfc8 30.Bd3 Ra2 (30...R2c7 31.Rab1=) 31.Rac1 (31.Rhc1 Rc6+=) 31...Bc2 (31...Rd8 32.Ra1=) 32.Bc2 Rcc2 33.Rc2 Rc2 34.Rb1 Rc7 35.Rb5 Be1 36.Kg4 h6 37.Rc5 (37.Kf4 Bc3+=) 37...Rc5 38.Bc5 b5 39.Bd4 (better is 39.Kf4!?=) 39...b4–/+ 40.Bb2?? (better is 40.ab4 Bb4 41.Kf4–/+) 40...Bc3–+ (40...Bc3 41.Bc1 b3–+ (41...Be5?! 42.ab4 Bd6 43.b5–/+)) 0–1. Zoephel,Heinz (2195) – Brameyer,Hermann (2220), GER–chT Seniors, 2007. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 e6 5.a3 Nbd7 6.c4 c6 7.Nc3 Bd6)

8.Rc1 0-0 9.h3 dc4=+ 10.Bc4 Ne5 (10...Nb6 11.Be2=+) 11.Ne2 (11.Ne5!? Be5 12.d4=) 11...Nd3 (11...Nc4 12.Rc4 a5 13.ba5 Ra5 14.Qa1–/+) 12.Bd3=+ Bd3 13.Qb3 Be2 14.Ke2 Qe7 (14...Nd5 15.e4 Nf4 16.Kf1=+) 15.Rc4 (15.Be5 Be5 16.Ne5 Nd5=+) 15...e5 (15...Nd5 16.Rhc1=+) 16.g4 (16.d3 Qe6=+) 16...Qe6 17.Qc2 (17.Ng5 Qd7=+) 17...g6 (17...a5 18.ba5 Ra5 19.Rb1–/+) 18.Rg1 (18.g5 Nd5=+) 18...Nd5 (18...a5 19.ba5 Ra5 20.Rb1=+) 19.h4 f5 (19...a5 20.ba5 Ra5 21.h5=+) 20.h5 (better 20.Ng5 Qe7 21.gf5 Rf5 22.Ke1=) 20...fg4?? (20...Nb6 21.Rc5 fg4 22.Ne5 gh5 23.Ng4 hg4 24.Rg5 Kf7 25.R1g4 Be7 26.Rg7 Ke8+–) 21.Rcg4+– (21.Rgg4 b5 22.Rce4 Nf6=) 21...Qf7 (21...Qf5 22.Qf5 Rf5 23.hg6+–) 22.R1g3 (better 22.R4g3 Qe7 23.hg6+–) 22...Ne7? (better 22...Qf5 23.Qf5 Rf5 24.hg6 h5+–) 23.hg6+– hg6 (23...Qe6 24.gh7 Kh8 25.Qe4+–) 24.Rg6 Ng6 25.Qg6 Qg6 26.Rg6 Kh7 (26...Kf7 27.Rd6 Ke7 28.Be5+–) 27.Rd6 Rf5 (27...Rg8 28.Ne5 Rgd8 29.Rd8 Rd8 30.f4+–) 28.Rd7 Kh6 29.Ne5 1–0. Ackaert,Thierry (2035) – Vanheirzeele,Daniel (2140), TCh–BEL, 2015.

8.c5 Bc7 9.Be2 0-0 10.Nh4 Re8 11.Nf5 ef5 12.0-0 f4 13.ef4 Bf4 14.g3 Bh6 15.Re1 g6 16.f4 Nf8 (16...Bg7 17.Qc2=) 17.Bf3 Re1 18.Qe1 Bg7 19.Qc1 Ne6 20.Ne2 a5 21.Rb1 (21.Nd4 Nd4 22.Bd4 b6=) 21...Qe7 22.Nd4 ab4 23.ab4 Ne4 24.Ne6 Qe6 (worse is 24...fe6 25.Be4 de4 26.Bg7 Kg7 27.Qc3 Qf6 28.Re1+/–) 25.Bg7 Kg7 26.Qb2 Qf6 27.Be4 de4 28.Kf2 Qb2 29.Rb2 f5 30.b5 Rd8 31.bc6 (31.b6 Kf6 32.Ke2 Ke6+=) 31...bc6+= 32.Ke2 Rd5 33.Rb7 Kg8 ½–½. Degterev,Pavel (2275) – Leonard,Mark (2040), WC–2012–S–00006, 2009.

8.c5 Bc7 9.Be2 e5 10.d4 h6 (10...e4 11.Nd2=) 11.Nb5 (11.de5!? Ne5 12.Nd4=) 11...cb5+= 12.de5 Ne4 13.Qd5 0-0 (13...a6 14.Rd1=) 14.0-0 (14.Rd1 Ng5 15.Bb5 a6 16.Bd7 Be4+/–) 14...Ng5 15.Rad1 Rb8 16.Ng5 Qg5 17.f4 Qg6 18.Qf3 Rbd8 (18...a6 19.Rd4=) 19.Rd4 (19.Bb5 Nb8 20.Bc4 Be4=) 19...Nb8 20.e4 (20.Bb5 Nc6 21.Rd8 Rd8+=) 20...Bd7 21.f5 Qh7 22.Qg3 Nc6 (22...Bc6 23.Rd8 Rd8 24.Bh5=) 23.Rd5 Be8 (23...Ne7!? 24.Rdd1 Bc6+=) 24.Rfd1 (24.Bb5 Rc8 25.f6 Nb4 26.fg7 Qg7 27.Qg7 Kg7 28.e6 f6 29.Rd7 Bd7 30.ed7 Rcd8 31.ab4 Be5+/–) 24...a6= 25.Qe3 (25.f6 Rb8+=) 25...Rb8 26.f6 b6 27.Kh1 (27.Qg3 bc5 28.bc5 g5=) 27...bc5+= 28.Qc5 Bb6 (28...Qe4 29.fg7 Kg7 30.Bf3+/–) 29.Qc2 g6 (29...Rc8 30.Bg4 Rc7 31.Qd3=) 30.Bg4 Nd8 (30...Rb7!?=) 31.Rd6+= h5 32.Bh3 Qh6 (32...Ne6 33.Be6 fe6 34.Re6 Bf7+–) 33.Rb6+– Rb6 34.Bc1 Rc6 (34...Qh7 35.Rd8 Rc6 36.Qd1+–) 35.Qc6 (35.Bh6?! Rc2 36.Rd8 Kh7+/–) 35...Bc6 (35...Nc6?? 36.Bh6 Ne5 37.Bc8+–) 36.Bh6 Re8 37.Kg1 (37.Rd6 Be4 38.Kg1 Kh7+–) 37...Ne6 (37...Be4 38.Kf2+–) 38.Be3 (38.Rd6 Be4 39.Ra6 Nd8+–) 38...Nf8 (38...Be4 39.Be6 Re6 40.Rd8 Kh7 41.Rf8 Re5 42.Rf7 Kg8 43.Rg7 Kf8 44.Bc5 Rc5 45.bc5+–) 39.Rc1 Be4 (39...Bd7 40.Bd7 Nd7 41.Rc7+–) 40.Rc8 Rc8 41.Bc8 Bc6 42.Ba6 Nd7 43.Bd4 Nb8 44.Bc8 Nd7 (44...Bd7 45.Bd7 Nd7 46.Kf2+–) 45.Kf2 (45.h3 Kf8+–) 45...Kf8 46.a4! ba4 47.Ba6 Ke8 48.Bc4 Nf8 49.b5 Bb7 50.Bb2 g5 51.b6 (51.Be2 Ng6+–) 51...Bc6 52.Be2 h4 53.e6! (53.e6 fe6 54.Ba3+–) 1–0. Cirulis,Ilmars (1970) – Carrizo,Jos‚ (2035), FICGS, 2016.

8.c5 Bc7 9.Ne2 Bd3 10.Ng3 Bf1 11.Nf1 0-0 12.Ng3 Re8 13.0-0 Nf8 14.Qc2 Ng6 15.Rad1 e5 16.d3 Qd7 17.e4 d4 18.Bc1 h6 19.Nf5 Qe6 20.h3 Nh5 21.g3 Nf6 22.Qe2 Kh8 23.Kg2 Nd7 24.Rh1 a5 25.Qd2 ab4 26.Nh6? (26.ab4!? b6 27.cb6 Bb6 28.Bb2+=) 26...gh6 (26...Nc5?! 27.Ng5 Qe7 A) 28.Ngf7 Kh7 29.Qg5 A1) 29...ba3? 30.Qh5 Nf4 31.Bf4+– (31.gf4?! gh6 32.Qh6 Kg8 33.Qg6 Kf8+–); A2) 29...Qg5 30.Ng5 Kh6 31.Ne6 Nf4 32.Bf4 ef4 33.Nc7 f3 34.Kh2 ba3–/+; B) 28.Nhf7 Kg8 29.ab4+= (worse is 29.Qb4 Ra4 30.Qd2 Rf8–/+); 26...ba3 27.Ng5 Qb3 28.Ngf7 Kh7 29.Ng5 Kh6 30.Ne6 Nf4 31.gf4 Re6 32.f5 Kh7 33.fe6 Nc5 34.e7–/+) 27.Qh6 Kg8 28.Ng5?? (better is 28.ab4 Qb3 29.h4–/+) 28...Nf4!–+ 29.Bf4 (29.gf4 Qh6 Discovered attack) 29...Qh6 30.Nf7 Qf6 (30...Qg6 31.Nh6 Kh7 32.Bd2 ba3 33.Nf5–+) 31.Nh6 Kh8 (31...Kh7 32.Ng4 Qg6 33.Be5 Ne5 34.ab4 Nd3 35.Nf6 Qf6 36.Rd3–+) 32.Ng4 Qe6 33.Bg5 ba3 34.Nh6 Nc5 35.Nf5 a2 36.g4 Nb3 Black plans a1 37.h4 a1Q 38.h5 Qd1! 39.Rd1 Ra1 40.Ra1 Na1 41.Bh6 Bd8 42.Bd2 Rg8 43.f3 Bg5 44.Bb4 Nc2 45.Bc5 Ne3 46.Kg3 Qa2 47.Ne3 Bf4 48.Kh4 Qh2 0–1. Grunenberg,Sven – Barisch,Florian (1710), Frankfurt–ch, 2008.

8.d3 Qe7 9.Qc2 (9.c5 Bc7=) 9...0-0 (9...dc4 10.e4 cd3 11.Bd3-/+) 10.e4 de4 11.de4 Bg6 12.Nh4 (12.c5 Bf4=) 12...Ne5 (12...Ng4 13.0-0-0 a5 14.c5-+) 13.Ng6 fg6 (13...hg6 14.f4 Nfg4 15.fe5 Be5 16.g3=) 14.h3 (14.f4!? Nfg4 15.fe5 Be5 16.0-0-0=+) 14...Nh5-/+ 15.Be2 (15.Rd1!?-/+) 15...Nf4-+ 16.0-0? (16.0-0-0 Ng2 17.Bf1 Nh4-+) 16...Qg5 17.Bg4?? (17.g3 Nh3 18.Kg2-+) 17...h5 18.f3 (18.Be6 Ne6 19.Ne2 Nf3 20.Kh1 Nd2-+) 18...hg4 (18...Ng4 19.fg4 hg4 20.hg4 Qg4 21.Rf3-+) 19.hg4 (19.fg4 Nfd3 20.Kh1-+) 19...Ng4! 20.fg4 (20.fg4 Qg4 Combination) 20...Qg4 21.Rf2?? (21.Rf3-+) 21…Nh3 (21...Nh3 22.Kf1 Rf2 23.Qf2 Nf2 24.Bc1 Rf8 25.Bf4 Ne4 26.Ke1 Qf4 27.Ne4 Qe4 28.Kd2 Rf2 29.Kd1 Qc4 30.Rc1 Qe2) 0-1. ozo (2110) - Goran_Krastev (2195), Rated Blitz game, lichess.org, 2015. (=1.Nf3 A00: Irregular Openings 1...d5 2.b4 c6 3.Bb2 Bf5 4.e3 Nd7 5.c4 e6 6.a3 Ngf6 7.Nc3)

8.Nd4 Be4 =.

8.cd5 cd5 9.Nb5 Bb8 10.Rc1 a6 (10...e5 11.Be2=) 11.Nbd4 Bg6 12.b5 (12.Be2 e5 13.Nb3 0-0=) 12...a5 (12...ab5 13.Nb5 0-0 14.Be2=) 13.Be2 0-0 (13...e5 14.Nc2=) 14.Nh4+= Ne5 (14...Qe7 15.f4+=) 15.d3 (15.Ng6 Ng6 16.f4 e5 17.fe5 Be5+=) 15...Nfd7 (15...Bh5 16.0-0 Qd6 17.f4+= (17.Bh5? Nd3 18.g3 Nb2–+)) 16.Ng6 (16.g3 Nf6+/–) 16...Ng6+= 17.0-0 e5 18.Nf3 (18.Nf5 Qg5+=) 18...Bd6= 19.h3 (19.Rc3 a4=) 19...Rc8 (19...Nb6 20.Qb3=) 20.Rc8 Qc8 21.Qa1 (21.Qa4 Qa8=) 21...Qc2 22.Re1 Re8 23.Kf1 (23.Qc1 Rc8=) 23...Nb6 (23...Nc5 24.d4 Nb3 25.Qb1 Qb1 26.Rb1 ed4 27.Bd1 de3 28.Bb3 e2 29.Kg1+=) 24.Rc1 Qb3 (24...Qa4 25.Rb1=) 25.Rb1 (25.d4 e4 26.Nd2 Qa4+=) 25...Qc2 (25...Qb5? 26.Bd4 Qa4 27.Bb6+–) 26.Rc1 Qb3 27.Rb1 Qc2 (27...Qb5? 28.Bd4 Qa4 29.Bb6+–) ½–½. Lais,Klaus Joerg – Vollmer,Oliver, Wuerzburg op, 1998.

8.cd5 cd5 9.Be2 e5 =.

8.cd5 ed5 9.Be2 0-0 10.0-0 Qe7 11.Nh4 (11.Nd4 Bg6=) 11...Be6 12.Nf3 (12.Qc2 Rfc8=) 12...Ng4 (12...a5 13.b5=) 13.h3 (13.d4 Bf5=) 13...Nge5 14.Rc1 (better is 14.Ne5!? Ne5 15.f4=). gobo – SWAT_TEAM, ChessWorld.net, 2005.

8.cd5 ed5 9.Be2 Ne5 10.d3 0-0 (10...Nf3 11.Bf3 0-0 12.0-0=+) 11.0-0 Re8 12.Ne5 Be5 13.d4 Bc7 14.b5 Qd6 15.g3 Re7 16.a4 Rae8 (better 16...Qe6=) 17.Ba3+– Qd7 18.Be7 Re7 19.Re1 Ba5 20.Qb3 Ne4 21.Ne4 Be4 22.Rec1 Qf5?? (22...Bd2 23.bc6 bc6 24.Rd1+–) 23.Qd1 (better 23.bc6 b6 24.c7 Re8+–) 23...Qg5? (better 23...Qg6!?+–) 24.bc6 bc6 25.Rc6 g6 26.Bf3 Bf3 (26...Rc7 27.Rc7 Bc7 28.Be4 de4 29.Qc2+–) 27.Qf3 Re4 (27...Rd7 28.Rb1+–) 28.Rc8 (28.Ra6!? Qd8 29.Ra7 f5+–) 28...Kg7 29.Rac1 Bb6 30.R1c6 Kh6 (30...Qe7+–) 31.Qf7 Qg4 (31...Re7 32.Qf8 Rg7 33.h4+–) 32.Qf8 (32.Rh8 Qd1 33.Kg2 Qf3 34.Kf3 Re3 35.fe3 Kg5 36.h4 Kh5 37.Rh7) 32...Kh5+– 33.Qg8 (better 33.Qg7 h6 34.h3 Qg5+–) 33...Qd1 (33...Kh6 34.Rf8 Re7+–) 34.Kg2 Re3 35.Qh7 (35.fe3 Qe2 36.Kg1 Qe3 37.Kf1 Qf3 38.Ke1 Ba5 39.Rc3 Bc3 40.Rc3 Qc3 41.Ke2 Qc2 42.Ke1 Qe4 43.Kf1 g5 44.Qf7 Kg4–+) 35...Kg5 36.Qg6 (36.fe3 Qe2 37.Kg1 Qe3 38.Kf1 Qf3 39.Ke1 Ba5 40.Rc3 Bc3 41.Rc3 Qc3 42.Ke2 Qc2 (worse 42...Qd4 43.h4 Kg4 44.Qg6 Kh3 45.h5 Qc4 46.Kf3 Qf1 47.Ke3+–) 43.Ke1 Qe4 (worse 43...Qa4 44.Qh4 Kf5 45.Qf4 Ke6 46.Qe5 Kd7 47.Qd5 Ke7 48.Qe5 Kf7 49.h4+–) 44.Kf1 Qd4 45.h4 Kg4 46.Qg6 Kf3 47.Qf5 Kg3 48.Qg5 Kf3 49.Qg2 Ke3 50.Qg1 Kd3 51.Qd4 Kd4+–) 1–0. GuestTFBW – GuestMJFH, freechess.org, 2017.

8.cd5 ed5 9.Be2 Ne5 10.Ne5 Be5 11.Na4 Bb2 12.Nb2 =.

8.cd5 ed5 9.Be2 h6 10.0-0 0-0 11.Nd4 Bh7 (11...Bg6 12.Rc1=) 12.f4 (12.Rc1 Nb6=) 12...a5 13.ba5 (13.b5 c5 14.Nf3 Re8=) 13...Ra5 (13...Qa5 14.Qe1=+) 14.Nb3 (14.Nb1 Re8=+) 14...Ra8 15.a4 Nc5 (15...Nb6 16.d3=+) 16.Nc5 (16.a5 Re8=+) 16...Bc5 17.Qc1 Qe7 (17...Re8 18.Nd1 Qe7 19.f5=+) 18.Rf3 (18.Nd1 Rfe8=+) 18...d4–/+ 19.Nd1 Rfd8 20.Nf2 Nd5 21.Rg3 f6 (21...Bg6 22.Nd3 Bd3 23.Bd3–/+) 22.ed4 (22.Bc4 de3 23.de3 Kh8–/+) 22...Bd6 (22...Qe2?! 23.dc5 Re8 24.h3=) 23.Bc4 Bf4 24.Rf3 (24.Rb3 Bb8–/+) 24...Bd6 25.Ng4 (25.a5 Qc7 26.Bd5 cd5 27.Qc7 Bc7–/+) 25...Kh8 (25...Qd7 26.Ne3 Kh8 27.Nd5 cd5 28.Bb5=+) 26.d3 (26.Rb3 Nf4–/+) 26...Ra5 27.Qd2 Bb4 28.Qf2 Qd7 29.Qh4 Rf8 30.Bb3 Qd6 31.Kh1 f5 32.Ne5= g5 33.Qh5 Kg7 34.Rf2 b5 35.Rc1 (35...ba4 36.Rc6 ab3 37.Rd6 Bd6 38.Nc4+=; 35.Rc2!? Nf6 36.Qd1 ba4 A) 37.Nc6?? ab3 38.Ra5 Ba5–+ (38...bc2?! 39.Ra7 Kg8 40.Qc2–+); B) 37.Rc6?! Qe7 38.Re6 Qb7+/–; C) 37.Ba4+/–). Hebels,Albert – Hoorweg,Frits PA, corr NED–ch M, 1988.

8.Be2 dc4 9.Bc4 Nb6 10.d3 =+.

8.Be2 Ng4 9.Nd4 Qh4 (9...Nh2? 10.g3 (10.Nf5?! ef5 11.cd5 Rc8+=) 10...Ne5 11.Nf5 Nhf3 12.Bf3 ef5 13.cd5 Nd3 14.Ke2 Nb2 15.Qb3+–) 10.Bg4?? (better is 10.g3 Qg5 11.cd5+/–) 10...Bg4=+ 11.Nf3 (11.Qb3 Ne5 (11...Bh2?! 12.cd5 cd5 13.g3+=) 12.0-0 Nc4–+) 11...Bf3–/+ 12.Qf3 Qc4 (12...Ne5 13.Qe2 Nc4 14.d3 Nb2 15.Qb2–+) 13.Qe2 (13.e4 Ne5 14.Qe3 Nd3 15.Kf1 Nb2 16.Qe2 a5–+) 13...Qh4 14.g3 Qh3 15.Qf1 Qf5 16.Qg2 Ne5 17.Bc1 (17.Kd1 Nd3 18.e4 de4–+) 17...a5 18.b5 c5 (18...Nd3 19.Ke2–+) 19.0-0 Nf3 20.Kh1 h5 (20...0-0 21.Rd1–+) 21.h3 g5 22.Ne2 e5 23.Nc3 (23.Rd1 g4 24.h4 Qd3–+) 23...e4 24.Ra2 d4 25.Ne2 Qd5 (25...d3 26.Ng1 g4 27.Nf3 gh3 28.Qh2 Qf3 29.Kg1–+) 26.Rb2 Qc4 (26...d3 27.Nc3 Qe6 28.b6–+) 27.Ng1 g4 28.h4 Be5 29.d3?! (29.Rb1–+) 0–1. Tejler – Katzensteiner, corr SOK–88–20, 1988.

8.h3 0-0 9.Nh4 Re8 10.Be2 (10.cd5 cd5 11.Qb3 Bg6=) 10...Ne5 (10...dc4 11.Nf5 ef5 12.Bc4=+) 11.Nf5= ef5 12.cd5 cd5 13.Nb5 (13.Qb3 Nc4 14.Bc4 dc4 15.Qc4 Be5=) 13...Bb8 (13...a6 14.Nd4 Nc4 15.Bc4 dc4 16.Nf5=) 14.f4 (14.Rc1!?+=) 14...Ne4=+ 15.0-0 (15.fe5?? Qh4 16.g3 Qg3 17.Kf1 Qf2; 15.Be5?? Qh4 16.g3 Qg3 17.Kf1 Qf2) 15...Nc4 16.Bc4 dc4 17.Nd4 Qd7 (17...Qd5 18.d3 cd3 19.Qd3=+) 18.Rc1= b5 19.Rc2 (19.d3 Nd6=) 19...a6 (19...a5 20.d3 Nd6 21.Qd2 ab4 22.ab4=+) 20.Kh2 (20.g4 fg4 21.Qg4 Ra7=) 20...Bc7 (20...a5 21.d3 Nd6 22.Qd2 ab4 23.ab4=+) 21.Qh5 (21.d3!? Nd6 22.Nf3=+) 21...g6–/+ 22.Qh6 (22.Qe2 Nf6–/+) 22...f6 23.g4 (23.Qh4!?–/+) 23...fg4–+ 24.hg4 Qg7?? (24...a5!? 25.Qh3 ab4 26.ab4 Ra2–+) 25.Qh3 (better 25.Qg7!? Kg7 26.Kg2=) 25...Rad8–/+ 26.Kg2 Bb6 27.g5 (27.Rd1!?–/+) 27...Qb7–+ 28.Kg1 c3 (better 28...fg5!? 29.f5 Qf7–+) 29.dc3=+ fg5 30.c4? (better 30.f5 Qd7 31.Qf3=+) 30...bc4–+ 31.fg5 (31.f5 c3! 32.f6 Nf6 (32...cb2?! 33.f7 Qf7 34.Rf7 b1Q 35.Rf1=+) 33.Bc3 Nd5–+) 31...c3 32.Bc3 (32.Bc1–+) 32...Nc3 33.Rc3 Bd4 (better 33...Rd4 34.Qg2 Qd7 35.ed4 Qd4 36.Kh1 Qc3 37.Qa2 Kh8–+) 34.ed4=+ Rd4 (34...Qd5 35.Rc7 Qg5 36.Qg2 Qe3 37.Qf2 Rd4 38.Qe3 Re3 39.Rff7=) 35.Rcf3 (35.Rc5 Qe4 36.Qb3 Re6 37.Rc8 Kg7 38.Rc7 Kg8=) 35...Rd7 (35...Qd5 36.Qg3=+) 36.Qh6 (36.Rf6 Qa7 37.Kh1 Qa8 38.Kg1 Qa7 39.Kh1 Qa8 40.Kg1 Qa7=) 36...Rg7 (36...Qa7 37.Kh1 Qa8 38.Qh4=) 37.Qh4 Qd7?? (37...Rd7 38.Qf2 Rdd8 39.Rf7=) 38.Qf4 (38.Qc4 Qf7 39.Rf7 h5 40.Rg7 Kg7 41.Qf7 Kh8 42.Qe8 Kg7 43.Rf7) 38...Rge7= 39.Qc4 Qe6 40.Qf4 ½–½. Schmidt,Frederik – Zirwes,H (1845), 9th Rheinland–Pfalz Open, 2017.

8.h3 0-0=+ 9.Nh4 Bg6 10.Be2 Qe7 (10...dc4 11.Ng6 hg6 12.Bc4=) 11.0-0 Rfe8 (11...dc4 12.Ng6 fg6 13.Bc4=) 12.d4 (12.c5 Be5=) 12...Ne4 (better is 12...Be4!?=) 13.Ng6+/– hg6 14.Ne4 de4 15.Qc2 Nf6 16.Rad1 Rad8 17.Rd2 Bb8 (17...Qd7 18.Rfd1+/–) 18.Rfd1 (18.f3 e5+/–) 18...Rd7 (18...Qd6 19.f4+/–) 19.g3 (19.c5 Rd5+/–) 19...Red8+= 20.Bf1 e5 21.Bg2 ed4 22.Bd4 Re8 (22...Qe6 23.Qc3 Bc7 24.a4+= (24.Ba7?! Rd2 25.Rd2 Rd2 26.Qd2 Qc4+=)) 23.Qa4 Qe6 24.b5+/– cb5 25.cb5 Nd5 26.Rc1 Nb6 27.Qd1 Nc4= 28.Rdc2 Na3 29.Rc5 Bd6 30.Rg5 f5 31.Qa4 Be7–/+ 32.Bf1 Kh7 33.Kg2 Rd4!–+ 34.ed4 e3 35.Re1 (35.Qa7 Qa2 36.h4 Bg5 37.Kh3 Qf2 38.hg5–+) 0–1. Kuhn,H – Kreuscher,Wolfgang, SEM–ch Gr–D Dudweiler, 1995.

8.h3 Qe7 9.Nh4= Bg6 10.Ng6 hg6 11.Qb3 0-0 12.Be2 a6 13.h4 (13.c5 Bc7+=) 13...b5 14.c5 Bc7 15.h5 gh5 16.Bh5 Nh5 17.Rh5 Nf6 18.Rh3 g6 19.0-0-0 Kg7 20.Rdh1 Rh8 21.Ne2 Rh3 22.gh3 (22.Rh3 e5=) 22...Rh8 23.h4 Kg8 (23...a5 24.Nd4 Qe8 25.f4=) 24.Qc3 (24.f4 e5=) 24...Bd8 (24...e5!? 25.f4 a5=+) 25.f4 Rh5 26.Ng3 Rh6 27.h5 Kf8 (27...gh5 28.Nh5 Kf8 29.Ng3 Rh1 30.Nh1=) 28.hg6 Rh1 29.Nh1 fg6 30.Nf2 Kf7 (30...Ke8 31.Nd3+=) 31.Nh3 (31.Nd3 Ke8+/-) 31...Ke8 32.Ng5 Kd7 33.Qe5 Bc7?? (33...a5 34.Nf3 Ng4 35.Qb8+-) 34.Qd4 (better 34.Qf6 Qf6 35.Bf6+-) 34...Ne8 (34...Nh7!? 35.Nf3 Qf8+/-) 35.Qh8 (35.Qd3 a5+-) 35...Bd8 (35...a5 36.Qg8+/-) 36.Qg8+- Kc8? (36...Nc7 37.Nf7+-) 37.Qg6 (37.Ne6 Qd7+-) 37...Qd7 (better 37...Kd7+-) 38.Ne6 Nc7 (38...Bf6 39.f5 Qe7 40.d3 Bb2 41.Kb2+-) 39.f5 Ne6 40.fe6 Qe7 41.Be5 Kb7 42.Qf5 (better 42.Qf7 Ka7 43.Bf6 Qf7 44.ef7 Bf6 45.f8Q+-) 42...Qe8 (42...Kc8+-) 43.Bd6 (better 43.Qf7 Qf7 44.ef7+-) 43...Qg8 (43...Ka8 44.Qf7 Qh8+-) 44.Qf7 (44.Qf7 Qf7 45.ef7 Bg5 46.f8Q Bd8 47.Qd8 a5 48.Qc7 Ka6 49.Qb6) 1-0. SantosBarrios (2520) - universe64 (2490), lichess.org, 2021. (=1.e3 d5 2.c4 c6 3.a3 Nf6 4.Nf3 Bf5 5.b4 e6 6.Nc3 Nbd7 7.Bb2)

8.h3 h6 9.Qb3 0-0 10.g4 Bg6 11.0-0-0 (11.c5!? Ne5 12.Ne5 Be5 13.Rg1+=) 11...c5 12.b5 dc4 13.Bc4 Nb6 14.g5 hg5 15.Ng5 Nc4 16.Qc4 Nd5 17.f4 (worse is 17.Nd5 Qg5 (17...ed5?! 18.Qd5 Be7 19.Qd8 Rfd8 20.Rdg1+=) 18.Nf4 Bf4 19.Qf4 Qf4 20.ef4 Bd3–/+) 17...Qa5 (17...Nb6!? 18.Qe2 c4+=) 18.Nd5 ed5 19.Qd5 Rad8 20.Qc4 (20.Qb7 Qa4 21.f5 Bf5–/+) 20...Be7 21.Qc3 (21.Ne4 a6 22.Rhg1 (22.Nc5 Bc5 23.Rhg1 Ba3 24.Rg6 Rc8–+) 22...ab5 23.Rg6 bc4 24.Rg7 Kh8 25.Rf7 Bf6 26.Bf6 Kg8 27.Rg7 Kh8 28.Bb2+– (28.Rb7?! Rf6 29.Nf6 Qa3 30.Kb1 Qd3 31.Kc1 Qa3 32.Kb1 Qd3 33.Kc1 Qa3=)) 21...Qc3= 22.Bc3 a6 23.ba6 ba6 24.a4 (24.Rdg1 c4 25.Ne6 Ba3 26.Kd1 Rd7 27.Nf8 Bf8 28.Rg6 fg6+/–) 24...c4 25.d4 cd3 26.Kd2 Rc8 27.Rb1 Bf6 28.Rb3 Rc4 29.Ra1 Rfc8 30.Rc1 Ra4?? (better is 30...Bg5 31.fg5 Ra4–/+) 31.Bf6+– Rc1?? (31...Re8 32.Bb2 Ra2+–) 32.Rb8 1–0. combijack (1830) – pedroeleven, gameknot.com, 2011.

8.h3 h6 9.d3 Qe7 10.Qb3 a6 11.Be2 Bh7 12.0-0 0-0 13.Rfe1 Rfe8 (13...dc4 14.dc4 c5 15.b5=) 14.Bf1 (14.c5 Bb8=) 14...Rad8 (14...dc4 15.Qc4 Rec8 16.Qh4=) 15.g3 (15.c5 Bc7=) 15...Bb8 (15...dc4 16.dc4 c5 17.b5=) 16.Rad1 Qd6 17.Bg2 Ne5?? (better 17...e5=) 18.Ne5+- Qe5 19.Nd5 Qd6? (better 19...Qg5 20.Nf6 gf6+-) 20.Nf6 gf6 21.Bf6 Rc8 22.d4 White plans c5 22...Bc7 23.c5 Qd7 24.e4 Bd8 25.e5 (25.Be5!? Bg6+-) 25...Bf6 26.ef6 Qd8 27.Qf3 Bg6 28.Qf4 Kh7 29.Be4 Rg8 30.Rd3 (30.f3 Rc7+-) 30...Be4 31.Qe4 Rg6 32.Rf3 Kg8 33.Qe5 Qc7 (33...Rc7 34.Qh5 Kh7 35.Qh4+-) 34.Qh5 Qd8 (34...Kh7 35.Qh4+-) 35.Qh4 (35.Re6! Qd4 36.Rd6 Qa1 37.Kg2 Rb8+-) 35...Qd5 36.Re4 Rd8 37.Rg4 (37.Rfe3 Qg5+-) 37...Kh7? (better 37...Qf3 38.Rg6 fg6 39.f7 Kf7 40.Qd8 Qa3 41.Qc7 Kf6+/-) 38.Rg6+- Kg6 (38...fg6 39.Qf4 Qd7 40.Re3+-) 39.Rf4 (better 39.Qg4 Qg5 40.Qe4 Qf5 41.Rf5 ef5 42.Qe7 Rd4 43.Qb7+-) 39...h5 40.g4 Qg5 41.Qg3 h4 42.Qe3 Rd5 43.Kg2 Kh6 44.Qe4 a5 (44...Qg6 45.Kf3+-) 45.ba5 Qg6 46.Qe3 Qg5 47.Re4 Qe3 48.fe3 (48.Re3?! Rd4 49.Rb3 Kg6 50.Rb7 Ra4+-) 48...Kg6 49.Kf3 (49.Rf4 Rd8+-) 49...Kf6 50.Rf4 Ke7 51.Re4 Rd7?? (51...Kf6 52.Kf4 Rd8+-) 52.g5+- Rd8 (52...Rd5 53.Rh4 Rg5 54.Rh8+-) 53.Rh4 Rg8 (53...Rd5 54.Rh8 e5 55.Rb8 ed4 56.Rb7 Ke6 57.a6+-) 54.Rg4 (better 54.Kf4 e5 55.de5+-) 54...f6 (54...Ra8 55.Rg2+-) 55.g6 (better 55.gf6 Kf6 56.Rg8+-) 55...f5 56.Rg3 Kf6 57.h4 e5 (57...Rg6 58.Rg6 Kg6 59.Kf4+-) 58.h5 e4 (58...ed4 59.ed4 Kg7 60.Kf4+-) 59.Kf4 Ke6 (59...Kg7+-) 60.Rg5 Rg6 61.Rf5 (61.hg6 Kd7 62.g7 Ke6 63.g8Q Kf6 64.Rg7 b5 65.Qf7) 61...Rg5 (61...Rg1 62.Rg5 Rh1 63.Rg6 Kf7+-) 62.Re5 (62.Rg5 Ke7 63.h6 Kf7 64.h7 Kf6 65.h8Q Kf7 66.Ke5 Ke7 67.Rg7) 62...Re5 63.de5 Kd5 64.h6 Kc5 65.Ke4 Kb5 66.e6 c5 67.e7 Ka4 (67...Kc6 68.e8Q Kd6 69.h7 b5 70.h8Q Kc7 71.Qg7 Kd6 72.Qge5) 68.e8Q b5 (68...Kb3 69.Qb5 Kc3 70.h7 Kc2 71.Qd3 Kb2 72.h8Q Ka2 73.Qh2 Ka1 74.Qd1) 69.Qb8 (69.ab6 Kb3 70.Qb5 Kc2 71.Qe2 Kb3 72.b7 Ka3 73.b8Q c4 74.Qeb2 Ka4 75.Q8b5) 69...Ka3 70.Qb5 c4 71.Qc5 (71.a6 c3 72.a7 c2 73.a8Q) 71…Ka2 (71...Ka2 72.Qc4 Kb2 73.a6 Ka1 74.a7 Kb2 75.a8Q Kb1 76.Qaa2; 71...Kb2 72.h7 Kb3 73.Qb5 Ka2 74.h8Q c3 75.Qd4 c2 76.Qbb2) 0-1. SantosBarrios (2595) - universe64 (2545), lichess.org, 2021. (=1.e3 c6 2.c4 d5 3.a3 Nf6 4.b4 Bf5 5.Bb2 e6 6.Nf3 Nbd7 7.Nc3)

8.d4 0-0

9.c5 Bc7 10.h3 h6 (10...Ne4 11.Ne4 Be4 12.Be2=) 11.b5 (11.g4 Bg6=) 11...e5 12.de5 Ne5 13.Nd4 Bd7 14.Rc1 Qe7 15.Qd2 Qc5 16.bc6 bc6 (worse is 16...Nc6 17.Nc6 Bc6 18.Nb5+=) 17.Ncb5 Qb6 18.Nc7 Qc7 19.Nf3 Nf3 20.gf3 Qd6 21.Bd4 Rfe8 22.Qb4 Qf4 (22...Qb4 23.ab4 a5 24.Rg1–/+) 23.Be2 Qf5 24.Qd6 Qe6 25.Qe6 Re6 (worse is 25...Be6 26.Rc6 Reb8 27.Kd2+/–; 25...fe6?! 26.Be5=) 26.Bd3 (26.f4 a5=) 26...Be8 (26...g6!?+=) 27.Rg1+= Kh8 28.Rb1 Rc8 (better is 28...Rd6!?=) 29.Bf5+/– c5 30.Be6 fe6 31.Rc1 (31.Bf6 gf6 32.Rb7 a6+–) 31...c4 32.Rb1 Kh7?? (better is 32...Bc6+/–) 33.Rb7+– Nh5 (33...Bg6 34.Bf6 Rg8 35.Ra7+–) 34.Rgg7 Ng7 35.Rg7 (35.Bg7?! a6=) 35...Kh8 36.Rc7 Kg8 37.Rc8 (37.Rc8 Kf8 38.Rc7+–) 1–0. kamret (2190) – gaforrja (2030), GameColony.com, 2005.

9.Be2 dc4 10.Bc4 e5 11.Ng5 ed4 12.Qd4 Be5 13.Qh4? (13.Qd2 Qe7+=) 13...Nb6?? (13...Bc3 14.Bc3 Ne4 15.Bg7 Kg7–+ (15...Ng5?! 16.Qh6 Qe7 17.Bf8 Rf8 18.Rd1+=)) 14.Rd1+= Qd1?? (better is 14...Nfd5 15.Bd5 cd5=) 15.Nd1+– Nc4 16.Qc4 Bb2 17.Nb2 1–0. combijack (1750) – oldtimer (1740), gameknot.com, 2009.

9.Be2 dc4 10.Nd2 Bc7 11.Nc4 =+.

9.Be2 Re8 10.Nh4 (10.c5 Bc7=) 10...Be4 (10...dc4 11.Nf5 ef5 12.Qc2=+) 11.cd5 (11.Ne4 Ne4 12.Nf3 Qf6=) 11...ed5=+ 12.Rc1 Nf8 13.Ne4 Ne4 14.Nf3 Re6 15.0-0 Rh6 16.h3 a6 17.Nd2 f5 18.Re1 (18.Bd3 Ne6=) 18...Qh4 19.Ne4 fe4 (< 19...de4 20.Qb3 Kh8 21.Qf7+/–) 20.Bg4 Re8 21.Qe2 Ne6 22.Red1 Rf8 23.Rc2 Ng5 24.Rdc1 (24.Bd7 Rg6 25.Kh1 Ne6–/+) 24...Rhf6 (24...Rg6 25.Kh1–/+) 25.Bd7 (25.Rf1 Nf3 26.gf3 ef3–+) 25...Rg6 (25...Rf2 26.Qf2 Rf2 27.Rf2–+) 26.Kh1 Nf3 (26...Ne6!?–/+) 27.gf3= Rf3 28.Qf1 Rgf6?? (28...Qd8 29.Bf5 Rf5–+) 29.Bg4 Rf2 30.Qe1? (30.Qg1 R2f3 31.Qg2 Rg3–+) 30...Qg3?? (30...h5 31.Qg1 hg4 32.Qg4 Rf1 33.Rf1 Rf1 34.Kg2 Qe1 35.Qe6 Kh7 36.Qd6 Rg1 37.Kh2 Rh1 38.Kg2 Qg1) 31.Qg1–/+ Qe3 32.Rf2 Qf2 33.Qf2 Rf2 34.Rb1 g6 (34...e3!? 35.Bc8 b5–/+) 35.Bc8= e3 (35...b5 36.Ba6 e3 37.Bc3=) 36.Bb7 Kf7? (better is 36...Rc2!? 37.Re1 Rb2 38.Re3 Rd2=) 37.Bc6+/– Ke6 38.Bb7 Rh2 (38...Rc2!? 39.Ba6 Bg3+/–) 39.Kg1+– Rh3?? (better is 39...Rd2 40.Bc3 Bh2 41.Kh1 Rc2+–) 40.Bc8 (40…Ke7 41.Bh3+–) 1–0. dandy – phinster, ICC, 1995.

8.Be2 0-0

9.0-0 e5 10.cd5 cd5 (10...Nd5? 11.e4+–) 11.Nb5 Bb8 12.d4 e4 13.Ne5 Re8 14.Bg4?? (14.Nd7!? Qd7 15.Nc3+=) 14...Ng4–/+ (14...Be5?! 15.Bf5 Bb8 16.Qe2=) 15.Ng4 a6 (better is 15...Qb6 16.Nc3 Qg6–+) 16.Nc3–/+ Qg5 17.h3 h5 18.f4 ef3 (18...Bg4?! 19.hg4 Qh4 20.Qe1 (worse is 20.Nd5 hg4 21.Qb3 Re6–+) 20...Qg4 21.Nd5=) 19.Qf3 Bg6 20.Ne5 Be5 21.de5 Ne5 22.Qd5 Qe3 23.Kh1 Nd3 24.Nd1?? Qe2 25.Qf3 Nb2 26.Nb2 Qb2 27.Qb7 Rad8 0–1. Kleine,Peter (1900) – Kiesekamp,Marcos (2330), Berlin op, 2009.

9.d3 Qc7 10.c5 Be7 11.0-0 =.

9.d3 e5 10.cd5 (10.e4 A) 10...de4? 11.de4 Ne4 12.Ne4 Bb4 13.ab4 Be4 14.0-0+– (14.Ne5?! Ne5 15.Qd8 Rad8 16.Be5 Rfe8+–); B) 10...Be6 11.ed5 cd5=) 10...cd5 11.e4 Be6 (11...de4? 12.de4 Ne4 13.Ne4 Bb4 14.ab4 Be4 15.0-0+–) 12.Ng5 a5 13.Ne6 fe6 14.Qb3 (14.ed5 Nd5 15.Nd5 ed5=) 14...ab4+= 15.ab4 Ra1 16.Ba1 Qb6 17.0-0 Qb4 18.Qa2 Qc5 19.ed5 ed5 20.Bf3 Nb6 21.Qa7? (21.Qb3 Qb4 22.Qb4 Bb4+=) 21...Qc6 (better is 21...Ra8!? 22.Qb7 Ra1 23.Ra1 Qc3–+) 22.Qa2–/+ Kh8 (22...Ra8 23.Qb2–/+) 23.Qb1 Bc5 24.Re1 Bd4 25.Nd1 Ba1 26.Qa1 e4 27.de4 de4 28.Be2 Nbd5 29.Qb1 b6 30.h3 Qc5 31.Qb3 Ra8 32.Qg3 h6 33.Bf1? Ra1 34.Kh1?? Nc3!! 35.Qb8 Kh7 36.Qd8 Nd1 37.Rd1 Rd1 38.Qd1 Qf2 0–1. Koerner,He (1935) – Bruedigam,M (2290), Berlin GER, 2012.

9.cd5 cd5 10.Rc1 Qe7 =.

9.cd5 Nd5? 10.e4 +–.

9.Nh4 Bg6 10.Ng6 fg6 11.cd5 ed5 12.0-0 Qe7 13.f4 a5 14.b5 g5 15.g3 gf4 16.ef4 Nc5 17.Re1 Rfe8 18.Qc2 Kh8 19.Nd1 a4 20.Ra2 Nb3 21.bc6 Bc5 22.d4 Nd4 23.Bd4 Bd4 24.Kg2 bc6 25.Rf1 c5 26.Nc3 Bc3 27.Qc3 d4 28.Qc4 Qe6 29.Qe6 Re6 30.Rc1 Rc8 31.Rc4 Nd5 32.Ra4 (better is 32.Bg4 Ree8 33.Bc8 Ne3 34.Kf2 Nc4 35.Bd7–+) 32...Rce8?? (better is 32...Nc3!? 33.Bg4 A) 33...Na4?! 34.Be6 Rd8 35.Re2+=; B) worse is 33...Na2 34.Be6 Nc3 35.Ra5+/– (worse is 35.Bc8 Na4 36.Ba6 Kg8+=); C) 33...Rec6 34.Bc8 Rc8 (34...Na4?! 35.Bd7 Ra6 36.Bb5+=; 34...Na2 35.Bb7 g5 36.Bc6+–) 35.Rd4 cd4–+) 33.Bg4 (33.Bc4 Rd6 34.Bd5 Rd5+=) 33...Re1 34.Rd2 Ne3 35.Kh3 Ng4 36.Kg4 Rc1 37.Ra7 Rd8 38.a4 (38.Kf3 h6+=) 38...g6 (38...c4 39.Kf3 d3–+) 39.Kg5 d3 40.Rb2?? Rd5?? 41.Kf6 Rf5+= 42.Ke6 Re1 43.Kd6 Re8 44.g4 Rd8 45.Kc6? Rf6–+ 46.Kc5 d2 47.Rd2 Rd2 48.Ra8 Kg7 49.Ra7 Rf7 (49...Rf7 50.Rf7 Kf7–+) 0–1. Skulsky,Ian – Basanta,Gary, Vancouver inv, 1987. (=1.a3 d5 2.e3 Nf6 3.b4 Bf5 4.Bb2 e6 5.Nf3 Nbd7 6.c4 c6 7.Nc3 Bd6)

9.Nh4 Bg6 10.Ng6 hg6 11.0-0 (11.c5 Bc7+=) 11...Qe7 (11...dc4 12.Bc4 Nb6 13.Be2+=) 12.Qb3 dc4 13.Bc4 b5 14.Be2 a5 15.ba5 Ra5 16.d4 Rfa8 Increasing the pressure on the isolated pawn on a3 17.Bf3 Nd5 (worse 17...Ba3 18.Bc6 Bb2 19.Ra5 (19.Qb2?! Ra1 20.Ra1 Ra1 21.Qa1 b4+=) 19...Ra5 20.Qb2+–) 18.Nd5 (18.a4 ba4 19.Ra4 Rb8+=) 18...cd5 19.g3 Nb6 20.Bc3 Ra3 21.Qb5 Nc4 22.Ra3 Ra3 23.Rc1 Kh7 (23...Qf6 24.Bd1 Ra2 25.Rc2=) 24.Be2 Qa7 25.Kg2 Qa4 26.Qa4 Ra4 27.Be1 Kg8 (27...Ba3 28.Ra1 Nb6 29.Bb5+=) 28.e4+= Bf8 29.ed5 ed5 30.Bf3 Nd6 31.Bc3 (31.Bd5 Rd4 32.Bf3+=) 31...Nf5 (better 31...Ne4!?+=) 32.Bd5+– Nd4 33.Rb1 Ne2 34.Be1 Rd4? (better 34...Nd4+–) 35.Bf3+– (35.Bf3 Nf4 36.gf4+–) 1–0. Wan,Yunguo (2520) – Huang,Renjie (2255), China Blitz Chess Championships, 2019. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 c6 4.e3 Bf5 5.c4 e6 6.a3 Nbd7 7.Nc3 Bd6)

8.Be2 h6

9.0-0 0-0 10.c5 Bc7+=.

9.0-0 0-0 10.d4 Re8 11.cd5 (11.c5 Bc7=) 11...ed5=+ 12.Rc1 b5 13.Bd3 (13.Qb3!?=+) 13...Bd3-/+ 14.Qd3 Nb6 15.Ne2 Nc4 16.Qb3 a5 17.Qc2 (17.Bc3!?-/+) 17...ab4-+ 18.ab4 Bb4 19.Bc3 (19.Ra1 Qc7-+) 19...Bd6 20.Nd2 Qe7 (20...Qb8 21.Ng3-+) 21.Nc4 (21.Ng3 Qe6-+) 21...dc4 22.Ng3 b4 (22...g6 23.Ra1-+) 23.Bd2 (23.Bb4 Bb4 24.Qc4 Ba3-+) 23...c3 24.Be1 (24.Bc3 bc3 25.Qc3 Bg3 26.hg3 Rac8-+) 24...g6 (24...Bg3 25.hg3 Nd5 26.Qd3-+) 25.Rb1 (25.Bc3 bc3 26.Qc3 Rac8-+) 25...Qe6 (better 25...Bg3 26.hg3 Nd5-+) 26.Kh1 (26.Bc3 bc3 27.Qc3 Bg3 28.hg3-+) 26...Qc4 (better 26...Ra2 27.Qd3 Qd5 28.f3-+) 27.f3 (27.Qe2 Qd5 28.f3-+) 27...Ra2 28.Qd1 (28.Qb3 c2 29.Qc4 cb1Q 30.Ne4 Ne4 31.fe4-+) 28…c2 (28...c2 29.Qc1 cb1Q 30.Qc4 Qc2 31.Qc2 Rc2 32.Bb4 Bb4-+) 0-1. GM_HUSARZ (2035) - Fins (2495), Rated Bullet tournament HUVwD3Il, lichess.org, 2015.

9.0-0 0-0 10.h3 a6 (10...dc4 11.Bc4 b5 12.Be2=) 11.d4 (11.c5 Bc7+=) 11...Qc7 (11...dc4 12.Bc4 b5 13.Bd3 Bd3 14.Qd3=) 12.c5 Be7 13.Rc1 Bg6 (13...Rfe8 14.Qb3=) 14.a4 White prepares the advance b5 (14.Qd2 Ne4 15.Qe1 Bf5=) 14...b6 15.Bd3 Bd3 16.Qd3 a5 17.cb6 Qb6 18.b5 cb5 (18...Rfc8 19.bc6 Qc6 20.Nb5=) 19.Nb5 Bb4 20.Rc7 Rac8 21.Rfc1 Rc7 22.Rc7 Bd6 23.Rc1 Bb8 24.Ba3 Re8 25.g3 (25.Qc3 Ne4 26.Qc6 Qd8=) 25...Ne4 26.Kg2 Nd6 (26...Qa6 27.Nd2 Nd2 28.Qd2=) 27.Bc5 Qa6 28.Qb3 (28.Bd6 Bd6 29.Qc3 Bb4+=) 28...Nb5 (28...Ne4 29.Rc2+=) 29.Qb5 Qb5 30.ab5 Bc7 (30...Rc8 31.Ra1=) 31.Nd2 (31.Ba7 Bb6=) 31...Rb8 32.Rb1 Nb6 33.Kf3 Nd7 (33...a4 34.e4=) 34.Rb2 (34.Ke2 a4+=) 34...Rb7 (34...Nc5 35.dc5 Be5 36.Rb1+=) 35.Nb1 f6 (35...Be5 36.Rb3+=) 36.Nc3+= Nb6 37.Bb6 Bb6 38.Na4 Bd8 (38...Kf7 39.Ra2 Bd8 40.b6+=) 39.Nc5 (39.b6 Kf7+/–) 39...Rb6+= 40.Nd7 (40.h4!?+=) 40...Rb7= 41.Nc5 Rb6 42.Na4 Rb8 (better is 42...Rb7!?=) 43.b6+/– Kf8 (43...Kf7 44.b7 Be7 45.Rb6+/–) 44.b7 (44.Nc5 Ke8 45.b7 a4 46.Na4 Be7+–) 44...Ke7? (better is 44...Be7 45.Rb6 Ke8+/–) 45.Nc5+– a4 (45...Bc7 46.Na6 Kd7 47.Nb8 Bb8 48.Kg4+–) 46.Na4 (better is 46.Na6!? Bc7 47.Rb4 a3 48.Nb8 Bb8+–) 46...Bc7 47.Nc5 e5 (47...Rd8 48.Ra2+–) 48.Na6 e4 (48...Kd6 49.Nb8 Bb8 50.Kg4 ed4 51.ed4+–) 49.Ke2 (49.Kg4 Bd6 50.Nb8 Bb8+–) 49...Bd6 (49...Kd6 50.f4+–) 50.Nb8 Bb8 51.Rc2 Kd7 (51...Kd6 52.Rc8 Bc7 53.b8Q Bb8 54.Rb8+–) 52.Rc8 (52.Rc8 Bd6 53.b8Q Bb8 54.Rb8+–) 1–0. combijack (1755) – thor_muls (1695), gameknot.com, 2010.

9.0-0 dc4 10.Bc4 b5 11.Be2=.

9.c5 Bc7=.

9.d3 Qe7 10.0-0 e5 11.cd5 Nd5 12.Ne4 Bc7 13.Nfd2 N5f6 (13...0-0 14.Qc2=) 14.Qb3 Rd8 15.Rad1 Be6 16.Qc2 Ne4 17.Ne4 f5 (17...0-0 18.b5=) 18.Nd2 (18.Bh5 Bf7 19.Bf7 Qf7+=) 18...0-0= Black intends f4 19.b5 f4 (19...Qc5!? 20.Qc5 Nc5=) 20.bc6+/- bc6 21.Qc6 fe3 (21...Rc8 22.Nc4+/-) 22.fe3 (22.Qc7 ed2 23.Qa7 Bd5+-) 22...Rf1 23.Rf1 Nf8 24.Ne4 Bd5 25.Qa4 Be4 (better 25...Bb6!? 26.Bc1 Ne6+/-) 26.Qe4+- (worse 26.de4 Bb6+/-) 26...Bd6 27.d4 ed4 (better 27...Ne6+-) 28.Qd4?? (better 28.Bc4 Kh8 29.Qe7 Be7 30.Bd4+- (worse 30.ed4 Bf6+-)) 28...Bh2-+ 29.Kh2 Rd4 30.Bd4 Ne6 31.Bc4?? (better 31.Bb2-+) 31...Kh8 (31...Qc7 32.Kg1 Qc4 33.Ba7-+) 32.Be5?? (32.Be6!? Qe6 33.Rf8 Kh7 34.Ra8=+) 32...Kh7 (better 32...Qh4 33.Kg1 Qc4-+) 33.Bd3 Kg8 34.Bg6 (34.Bg3 Ng5-+) 34...Qh4 35.Kg1 Qf2?? (better 35...Qg5 36.Bf7 Kh7-+) 36.Rf2+- (36.Rf2 h5 37.Rc2 Kf8 38.Bd6 Kg8 39.Rc8 Nf8 40.Rf8) 1-0. Bolbochano (2560) - universe64 (2405), lichess.org, 2020.

7.Nc3 Be7

8.Rc1 0-0 9.d4 (9.cd5 Nd5 10.Nd5 ed5=) 9...a5 (9...dc4 10.Bc4 b5 11.Be2+=) 10.b5 cb5 11.Nb5 a4 (11...dc4 12.Bc4 Rc8 13.0-0=) 12.Be2 (12.c5 Ne4=) 12...Ne4 =. Van Rooijen,Peter – Guang Sheng,He, IECG, 2000.

8.Rc1 Rc8 9.h3 (9.cd5 ed5 10.Be2 a5=) 9...0-0+= 10.Qb3 Re8 11.d3 h6 (11...c5 12.cd5 cb4 13.ab4 ed5 14.g4=) 12.Be2= Bf8 13.0-0 Bd6 (13...a5 14.cd5 ed5 15.ba5 Qa5 A) 16.Qb7? Rb8 (16...Ba3 17.Ba3 Qa3 18.Nb5+/–) 17.Qc6 Rb2–+; B) 16.Nd4=) 14.cd5 (14.Rfe1 Ne5=) 14...cd5 (14...ed5!? 15.Qa4 a6=) 15.Nb5+= Rc1 16.Rc1 Bb8 17.Qc3 Qb6 18.Nbd4 Bh7 19.Nb3 e5 20.Nc5 Bf5 21.g4 (21.Nh4 Bh7=) 21...Be6 (21...Bg6 22.Nd7 Nd7 23.Qb3+=) 22.Ne6 Re6 23.Qc8 Re8 24.Qc2 e4 25.Nd4 (better is 25.de4!? de4 26.Nd4=) 25...Qd6–/+ 26.Kf1 (26.f4 ef3 27.Bf3 Qg3 28.Qg2 Re3 29.Qg3 Bg3+=) 26...Qh2 27.Ke1 Qg1 28.Kd2 Qf2 29.Rf1 (29.Nf5 Qg2–+) 29...Qh2 30.Kc1 (30.Nf5 ed3 31.Qd3 Ne5–+) 30...Qh3 31.Nf5 Ne5 (31...g6 32.g5 hg5 33.Nh6 Qh6 34.Bf6 Nf6 35.Rf6–+) 32.Be5 (32.de4 de4 33.Rg1 a6–+) 32...Be5 (32...ed3 33.Qd3 Be5 34.Kd1–+) 33.d4 Bb8 34.Qa4 (34.Kd2 Kh7 35.Qd1 Bh2–+) 34...Qh2 (34...g6!? 35.Kd2 Re6 36.Ne7 Kg7 37.Rf6 Kf6 38.Qd7–+) 35.Kd2 Rd8 36.Qb5 Qc7 37.Nh6?? (better is 37.Rc1 Qb6 38.Qb6 ab6 39.Rf1–/+) 37...gh6–+ 38.Rf6 Kg7 (better is 38...Rc8 39.Bc4 Kg7–+ (39...dc4 40.Rh6 Qd8 41.Qh5+–)) 39.Rf5+= a6 40.Qc5 Qd7 41.Qb6 Bd6 (better is 41...Qe7+=) 42.Rd5?? (better is 42.g5 hg5 43.Rg5 Kh7 44.Bd1=) 42...Bb4!–+ 43.Qb4 (43.ab4 Qd5 Discovered attack; 43.Qb4 Qd5 Discovered attack) 43...Qd5 44.Bc4 Qd7 45.Qc5 (45.Bf1 b5–+) 45...Qg4 (better is 45...Rc8 46.Qe5 f6 47.Qe6–+) 46.Qe5 (46.Qc7 Rd7 47.Qe5 Kg6–+) 46...Kg8 47.Qf6 Rd7 48.Qh6 Rc7 (48...Qf5 49.Qh4–+) 49.Be2 Qg6 (49...Qf5 50.Qb6 Qc8 51.Qb1–+) 50.Qf4 Re7 51.Qh4 (51.Bc4 Qc6 52.Bb3 Qc7 53.Qc7 Rc7–+) 51...Kf8 (51...Qe6!? 52.Bd1–+) 52.Qh8–/+ Qg8 53.Qf6 (better is 53.Qh2 f5 54.Qb8 Re8 55.Qd6 Kg7 56.Qc7 Kh8 57.Qh2 Qh7 58.Qd6–/+) 53...Ke8?? (better is 53...Qh7–+) 54.Qd6= Rd7 55.Qb8 Rd8 56.Qe5 Kd7 (56...Kf8!? 57.Qc5 Kg7 58.Qg5 Kh7 59.Qh5 Kg7 60.Qg5 Kh7 61.Qh5 Kg7 62.Qg5=) 57.Qe4+= Kc7 (57...Qg5 58.Qb7 Ke8 59.Qb6=) 58.Bf3+/– f5 59.Qb7 Kd6 60.Qa6 Ke7 61.Qa7 Kf6 ½–½. Stojanovski,Valentin – Ranic,Viktor, XVIII TCh–MKD, Struga MKD, 2009.

8.c5 0-0 9.Be2 h6 (9...e5 10.0-0=) 10.0-0 Qc8 (10...e5 11.d4 e4 12.Nd2=) 11.Nd4 Bh7 12.Nb3 (12.f4 Qc7=) 12...e5 (12...b6 13.cb6 ab6 14.f4=) 13.d4 (13.f4 Qc7=) 13...Rd8 (13...e4 14.Nd2=) 14.b5 Qc7 15.a4 ed4 16.ed4 (worse is 16.Qd4 Bc2 17.Nd2 Nc5–/+) 16...Re8 17.Re1 Nf8 (17...Bf5 18.Bc1=) 18.a5+= a6 19.bc6 bc6 20.Na4 Ne4 (20...Ne6 21.Nb6 Ra7 22.Bc1=) 21.Nd2 (21.f3 Nf2 22.Qc1 Bg5 23.Qg5 hg5 24.Kf2 Qh2–+) 21...Bg5 (21...Nd2 22.Qd2 Bg5 23.Qc3=) 22.Ne4 Re4 23.Rf1 (23.Nc3 Re6=) 23...Qa7 24.Ra3 Rae8 25.Bd3 R4e7 26.Bh7 (26.Rb3 Nd7=) 26...Nh7+= 27.Rb3 Qc7 (27...Bf4 28.Bc1 Bb8 29.Nb6=) 28.Bc3 (28.Rb6 Nf6=) 28...Nf8 (28...Nf6 29.Rb6=) 29.Rb6 (29.Qd3 Ng6+=) 29...Re4 (29...Nd7 30.Ra6 Bf4 31.g3+=) 30.Ra6 Ne6 31.Rb6 (31.g3 Bf6 32.f3 Re3= (worse is 32...Bd4 33.Kh1 Bc3 34.fe4+=)) 31...Nf4 (31...Bf6 32.Re1 Nd4 33.Re4 Re4 34.Kh1+=) 32.Kh1 (32.g3!? Ne2 33.Kg2=) 32...Ne2+= 33.Qd3 Rh4 (33...Bf6 34.Bb2+=) 34.h3 (34.g3 Re3 35.Qf5 Rg3–+) 34...Nf4 (34...Bf6 35.Rb4=) 35.Qf3 (35.Qg3 Qd7 36.Re1 Re1 37.Be1 Nh3 38.Qb8 Kh7–/+) 35...Qd7= 36.Kh2 Ne2 0–1. Cirulis,Ilmars (1955) – Llull,Roger (2335), FICGS, 2016.

8.d4 0-0 9.Bd3 Bd3 10.Qd3 dc4 11.Qc4 Nb6 12.Qe2 Nbd5 13.0-0 Nc3 14.Bc3 Ne4 15.Be1 Qd5 16.Ne5 f6 17.Nd3 Rad8 18.Nf4 Qb3 19.f3 (19.d5 ed5 (worse is 19...cd5 20.Ne6 Bd6 21.Qd1+–) 20.Ne6 f5=) 19...Nd6 (19...Ng5 20.Bh4 e5 21.Rab1+=) 20.d5 (20.Bg3 e5 21.de5 fe5=) 20...ed5+= 21.Ne6 Nc4 22.Nd8 (22.e4 d4 (worse is 22...Na3 23.Nd8 Bd8 24.ed5=) 23.Nd8 Rd8+=) 22...Rd8 23.e4 d4 (worse is 23...Na3 24.ed5 Bb4 25.Bb4 Qb4 26.dc6 bc6 27.Qe6 Kf8 28.Qc6+/–) 24.Qa2 Qa2 25.Ra2 a5 (25...d3 26.Bf2+=) 26.ba5= Ba3 27.Bd2 Nd2 28.Rd2 Bb4 29.Rb2 c5 30.Rb4 (30.Kf2 Ra8+=) 30...cb4+= 31.Rb1 d3 32.Kf2 Ra8 (32...Kf7 33.Ke1 (33.Rb4?? d2 34.Rb7 Ke8–+) 33...Ra8 34.Rb4 Ra5 35.Rb7 Kg6 36.Rb2+/–) 33.Rb4= Ra5 34.Rb7 (34.Ke3 d2 35.Kd2 Ra2 36.Ke3 Rg2+=) 34...Ra2+= 35.Kg3 h5 (35...d2 36.Rb1 f5 37.ef5+/–) 36.h4 Kf8 37.Rd7 Rd2 38.Rd5 g6 39.f4 Rd1 40.f5 gf5 41.ef5 Rf1 42.Rd3 Rf5 43.Rf3 Rf3 44.gf3 Kf7 45.Kf4 Ke6 46.Ke4 Ke7 47.Kf5 Kf7 48.f4 Ke7 49.Kg6 Ke6 50.Kh6 Kf5 51.Kh5 Kf4 52.Kg6 Kg4 53.h5 f5 54.h6 f4 55.h7 f3 56.h8Q Kg3 (56...f2 57.Qh1 Kf4 58.Qg2+–) 57.Qh1 Kf2 58.Kf5 Ke2 59.Ke4 f2 60.Qg2 Ke1 (60...Kd2 61.Qf2 Kc3 62.Qd4 Kb3 63.Kd3 Ka3 64.Kc3 Ka2 65.Qf2 Ka3 66.Qa7) 61.Ke3 1–0. Pandurevic,Miro (2225) – Solic,Kristina (2230), CRO–chT2c Croatia, 2009.

8.d4 0-0 9.Be2 a6 10.0-0 b5 11.cb5 (11.cd5 Nd5 12.g3 Qb6=) 11...cb5 (11...ab5 12.a4=) 12.Rc1 (12.Nh4 Bg6+=) 12...Rc8 13.Qb3 Nb6 14.Ne5 (14.Nh4 Qd7=) 14...Nc4=+ 15.Nc4 dc4 16.Qd1 Ne4 (16...Qb6 17.g4 Bg6 18.f4-/+) 17.Bf3 Nc3 18.Bc3 Bd3 19.Be2 Be2 20.Qe2 Bf6 21.f4 g6 22.Rf3 Bg7 23.Rh3 Qd5 24.Qg4 Qe4 25.Qh4 h5 (25...h6 26.Qe7=+) 26.Rf1 (better 26.g4!?+=) 26...Rfd8=+ 27.Qg5? (27.Rc1 Qf5=+) 27...Rd5 (better 27...Qc2 28.Ba1 c3-+) 28.Qg3 Bf6 29.Be1? (29.Qf2 Kg7-/+) 29...Rf5?? (better 29...c3 30.Qf3 Qd3-+) 30.Qf3 (better 30.Bc3-/+) 30...Kf8?? (better 30...Qf3 31.Rhf3 c3-/+) 31.Qe4+- Rd8 32.Qb7 Rdd5 33.g4 (better 33.Bc3 Kg8+-) 33...Be7 34.gf5 Rf5 35.Bh4 (35.e4 Rf6 36.Bh4 Ke8 37.Qc8 Bd8 38.Bf6 c3 39.Qd8) 35...Bf6 36.Bf6 Rf6 37.Qc8 Kg7 38.Qd7 (38.e4 a5 39.ba5 Kh7 40.Qd8 Kg7 41.Qe7 b4 42.a6 g5 43.fg5 Rf1 44.Kf1 b3 45.a7 Kg8 46.Rh5 c3 47.a8Q Kg7 48.Qf6) 38...Rf5 39.Rg3 (39.e4 Rf6 40.Qe7 a5 41.ba5 b4 42.a6 c3 43.a7 b3 44.a8Q g5 45.Qef8 Kg6 46.Qg8 Kh6 47.fg5) 39...Rf6 40.Rf2 h4 41.Rg4 Rf5 (41...h3 42.Rh4 Rf5 43.Rh3 Rd5 44.Qe8 Kf6 45.Rh7 Kf5 46.Qf7 Ke4 47.Qe6 Kd3 48.Rh3 Rg5 49.fg5 Kc3 50.e4 Kd4 51.Rd2) 42.Rh4 Rd5 43.Qe8 Kf6 44.Rh7 Kf5 45.Qf7 Ke4 46.Qe6 Kd3 47.Rh3 c3 (47...Rh5 48.Qg6 Rf5 49.Qf5 Kc3 50.Qc2) 48.e4 Kd4 49.Qd5 1-0. GM_HUSARZ (2025) - Phutressniak (2160), Rated Bullet tournament XnrZqPaE, lichess.org, 2015.

8.d4 0-0 9.Be2 Nb6 10.c5+= Nbd7 11.0-0 Ng4 12.h3 Nh6 13.Nd2 f6 (13...b6 14.Nf3=) 14.e4 de4 15.Nce4 Nf7 16.g4 (16.Ng3!?+/-) 16...Bg6= 17.f4 White gets in control 17...h5 (17...f5!? 18.Ng3 Bh4 19.gf5 ef5= (worse 19...Bg3 20.fg6 Nh6 21.gh7 Kh8 22.Ne4 Bf4 23.Bc4+/-)) 18.Bc4 (better 18.f5!? ef5 19.gf5+-) 18...hg4+= 19.hg4 (worse 19.Qg4 Be4 20.Qe6 f5 21.Ne4 fe4 22.Qe4 Nf6-/+; 19.Be6?! f5 20.Nf2 gh3+=) 19...e5? (better 19...f5 20.Ng3 Bh4+=) 20.f5 Bh7 21.g5 Kh8? (21...fg5 22.de5 b5 23.Bb3+-) 22.g6 (better 22.Bf7 Rf7 23.g6 ed4 24.Qh5+- (24.gh7?! Ne5+-)) 22...Bg8 (22...Bg6 23.fg6 Nh6+-) 23.Qh5 (23.Bf7 Bh7 24.Qh5 Rf7 25.Qh7) 23...Nh6+/- 24.Bd3 (24.Bg8 Kg8 25.Nf3 Re8+-) 24...ed4 (better 24...Bd5+/-) 25.Rf2?? (better 25.Nf3 Re8 26.Bc1+-) 25...Ne5=+ 26.Bf1 Be6?? (better 26...b6=) 27.fe6+- Neg4 (27...f5 28.Ng3 Bh4 29.Rg2 Bg3 30.Rg3+-) 28.Rf4 f5 29.Nd6 (better 29.Bg2!? b6 30.cb6 ab6+-) 29...Bd6 30.Bd4?? (better 30.cd6 Qd6 31.Qg5+-) 30...Bf4-+ 31.Nf3 Be3 (better 31...Qd5 32.Bg2 Rae8 33.e7 Re7 34.Kh1-+) 32.Kh1 (32.Be3 Ne3 33.Re1-+) 32...Bd4 33.Rd1 (33.Re1 Be3 34.Bc4-+) 33...Nf2 34.Kg2 Nd1 35.Ng5 Ne3 36.Kf3 Qd5 37.Ke2 Qa2 (37...Qc4 38.Ke1 Qc1 39.Ke2 Qd1 40.Kf2 Qf1 41.Kg3 f4 42.Kh2 Qg2) 38.Kf3-+ Qd5 (38...Nf1 39.Qh6 gh6 40.g7 Kg7 41.Ne4 fe4 42.Ke4 Qc4 43.e7 Nd2) 39.Ke2 Qe5 (39...Qc4 40.Ke1 Qc1 41.Ke2 Qd1 42.Kf2 Qf1 43.Kg3 f4 44.Kh2 Qg2) 40.Nf7 Rf7! 41.ef7 (41.gf7 Nf1 Discovered attack) 41...Ng2 42.Kf3 (42.Kd2 Qe1 43.Kc2 Qc3 44.Kd1 Qb3 45.Kd2 Be3 46.Ke2 Qc2 47.Kf3 Qf2) 42...Qe3 (42...Ne1) 43.Kg2 Qf2 44.Kh3 Qe3 (44...Qf1 45.Kg3 f4 46.Kh2 Qf2 47.Kh1 Qg1) 45.Kg2 Qf2 (45...Qg1 46.Kh3 Qf1 47.Kg3 f4 48.Kh2 Qf2 49.Kh1 Qg1) 46.Kh3 Qf1 47.Kg3 Qf2 (47...f4 48.Kh2 Qf2 49.Kh1 Qg1) 48.Kh3 Qf1 (48...Be5 49.Qh6 gh6 50.g7 Kg7 51.f8Q Rf8 52.b5 Qg3) 49.Kg3 Bf2 (49...f4 50.Kh2 Qf2 51.Kh1 Qg1) 50.Kf4 Bg1 (50...Bh4 51.Ke3 Qf2 52.Kd3 Rd8 53.Kc3 Bf6 54.Kb3 Rd3 55.Ka4 Qc2 56.Ka5 Ra3) 51.Ke5 Qe1 52.Kd6 (52.Qe2 Qe2 53.Kd6 Rd8 54.Kc7 Qe7) 52...Qd1 (52...Rd8 53.Kc7 Qe7) 53.Kc7?? (better 53.Qd1 Rd8 54.Kc7 Rd1 55.f8Q Ng8 56.Qf5+-) 53...Qh5 (53...Qd8 54.Kb7 Qc8) 54.Kb7-+ Qg6 (54...Qg6 55.f8R Rf8 56.Ka6 Qg3 57.a4 Qa3 58.Kb7 Qb4 59.Kc6 Qa4 60.Kd6 Rd8 61.Ke5 Qe4) 0-1. zembelek (2190) - walkingparadox (1940), Rated Blitz game, lichess.org, 2014.

8.Nd4 Be4 =.

8.cd5 ed5 9.Nd4 Bg6 10.Be2 0-0 (10...Nb6 11.Qb3=) 11.0-0 (11.f4 c5 12.bc5 Nc5=) 11...Qc7 (11...a5 12.f4 ab4 13.ab4 Ra1 14.Ba1=) 12.f4 h6 13.f5 (13.Qb3 Bd6=) 13...Bh7 14.Rc1 a6 (14...a5 15.b5 c5 16.Na4=) 15.Qb3 (15.Qe1 a5=) 15...Nb6 (15...Bd6 16.g3=) 16.g3 (16.Qc2 Bd6 17.Nf3 Qe7=) 16...Rad8 (16...a5 17.Na2=) 17.Rf4 (17.Kg2 Rfe8=) 17...Bd6 18.Rf3 Rfe8 19.Na4 Na4 20.Qa4 Ne4 21.Rc2? (21.Qd1 Ng5–+) 21...Qd7 (better is 21...Ng5!?–+) 22.Qa5 Be5 23.Qb6 Bd4 24.Qd4= f6 25.g4 Ng5 26.Rg3 Re4 27.Qb6+= Rde8 28.d3 R4e7 29.Bd4 Nf7 30.Bc5+= Nd6 31.Bf3 Nc8 32.Qa5 Kh8? 33.Be7+– Qe7 34.Qc5 Bg8 35.Qe7 Re7 36.Kf2 Nd6 37.h4 Nb5 38.a4+– Nd6 39.Rg1 Nf7? 40.Be2 (40...h5 41.b5 ab5 42.ab5 cb5 43.Rc8+–; 40.b5!? Ne5 41.bc6 Nc6+–) 1–0. mtrold1 – fe04, internet, 2001.

8.cd5 ed5 9.Be2 0-0 10.0-0 Qc7 11.h3 (11.Nd4 Be6=) 11...Ne4 (11...Ne5 12.d3=) 12.Rc1 Nc3 13.dc3 (13.Bc3 a5=) 13...Bf6 14.Nd4 Bg6 15.c4 dc4 16.Bc4 Rad8 17.Qb3 Ne5 18.Be2 Qe7 19.a4 Rc8 20.Rfd1 Rfd8 21.a5 a6 22.Ba3 Qe8 23.Bf1 Be4 24.Ne2 (24.Qc3 Rc7=) 24...Bd5 25.Qb1 (25.Qa4!?=) 25...Nc4-/+ 26.Qa2?? (better 26.Rd3 Be4 27.Rd8 Rd8 28.Qa2-/+) 26...Ne3-+ 27.Rd5 Nd5 (worse 27...cd5 28.Rc8 Rc8 29.fe3 Qe3 30.Kh1-+) 28.Ng3 h6 29.Bc4 Rd7 30.Nf5 Rcd8 31.Qb1 (31.Qb3 Qe4 32.Ng3 Qd4-+) 31...Nc7 (31...Nc3 32.Qb3-+) 32.Re1 (32.Bb2 Bb2 33.Qb2 Qf8-+) 32...Ne6 (32...Qe1! 33.Qe1 Rd1 34.Qf1 Rf1 35.Bf1-+) 33.Bb3 (33.Qb3 Kh7-+) 33...Rd3 34.Qa2 (34.Bc1-+) 34...g6?? (better 34...Qd7-+) 35.Nh6-/+ Kh7 36.Ng4 Bc3 37.Rc1? (better 37.Bb2 Qh8 38.Be6 Bb2 39.Bf7=+) 37...R8d6?? (better 37...Nf4 38.Kh2 Qe4-+) 38.Rc3!+- Rc3?? (38...Ng5 39.Rd3 Qe1 40.Kh2 Rd3+-) 39.Nf6 Kg7 1-0. carlos78 (2295) - armine (2080), Rated Blitz game, lichess.org, 2015.

8.cd5 ed5 9.Be2 h6 10.Nd4 Bh7 11.Nb3 0-0 12.0-0 b6 13.f4 Qc7 14.Rc1 a5 15.Nd4 White intends f5 15...c5 (worse is 15...ab4 16.Ncb5 Qb7 17.Nc6+/–) 16.bc5 bc5 17.Ndb5 Qb7 18.f5 c4 19.a4 Nc5 20.Qc2 Rfd8 21.Ba3 Nb3 22.Be7 Qe7 23.Rb1 Qe5 24.Na3 Rac8 25.Rf4 g6 26.Nd5 (26.Kh1 g5 27.Rf2 Nc5=) 26...Nd2 (better is 26...Nd5!? 27.Rc4 Rc4 28.Nc4 Nd4 29.Ne5 Nc2+=) 27.Qd2= Nd5 28.Rc4 Ne3 29.Rc8 Rc8 30.fg6 Bg6 31.Rb3 Re8 32.Qc3 Qe4 33.Bf3 Qa4 34.h3 Kh7 35.Bc6 Qf4 36.Nc4 a4 37.Ne3 ab3 38.Nd5 b2! 39.Nf4 b1Q 40.Kh2 Qe1 41.Qc4 Re3 42.Bf3 Qc3 43.Qc3 Rc3 44.Nd5 Rc4 45.Kg3 Kg7 46.Ne3 Rd4 47.Kf2 Be4 48.g4 Kf6 49.Be2 Rd2 50.Nc4 Rc2 51.Ke3 Bd5 52.Nb6 Be6 53.h4 Rb2 54.Na4 Rb4 55.Nc3 Ke5 56.g5 Rh4 57.gh6 Rh3 58.Kd2 f5 59.Nb5 Rh6 0–1. Bendig,Frank (2205) – Van Seben,Edgar (2400), WC–2010–T–00006, 2009.

8.Be2 dc4 9.Bc4 0-0 10.0-0 =+.

8.Be2 dc4 9.Bc4 Nb6 10.Be2 0-0 (10...Bd3 11.Ne5 Be2 12.Qe2=) 11.d4 (11.0-0 a5 12.b5 c5=) 11...Nfd5 (11...a5 12.b5=) 12.0-0 Rc8 (12...Nc3 13.Bc3 Nd5 14.Qd2=) 13.Rc1 (13.Bd3 Bd3 14.Qd3 Nc3 15.Bc3 Ra8=) 13...Bd6 14.Bd3 Bd3 15.Qd3 Qe7 (15...f5 16.Rfd1=) 16.Ne4 Nd7 (16...Na4 17.Nd6 Qd6 18.Ba1=) 17.Nd6+= Qd6 18.e4 Ne7 (18...N5b6 19.Rfe1+=) 19.Qc4 (19.Qc3 Rfd8+=) 19...Rfd8 20.Rfe1 Nb6 (20...Ng6 21.Qc3+=) 21.Qc5 Na4 22.Qc2 (22.Qd6 Rd6 23.Bc3 Nc3 24.Rc3 Rcd8+=) 22...Nb2 23.Qb2 Qb8 (23...Ng6 24.Qc3+=) 24.Rc5 (24.Qc3 Ng6+=) 24...Rd7 (24...Qd6 25.Qc3+=) 25.b5 (25.Ne5 Rdd8+=) 25...cb5 26.Qb5 (26.Rc8 Qc8 27.Qb5 a6=) 26...Rcd8 27.Rec1 (27.Qb2 Nc6 28.Rc4 Na5=) 27...b6 (27...Nc6 28.d5 a6 29.Qb3 ed5 30.Rd5 Rd5 31.ed5=) 28.Rg5 (28.R5c3!?+=) 28...h6 (28...Qf4 29.Re1=) 29.Rg4 Ng6 (29...e5 30.Qe5 (worse is 30.Ne5 Rd4 31.f4 Re4–/+) 30...Qe5 31.Ne5 (31.de5?? Rd1 32.Ne1 Rc1–+) 31...Rd4 32.Kf1+=) 30.g3 (30.Qc6 Nf4 31.Rc2 e5 32.Qh6 Ng6 33.Rg6 fg6+/–) 30...Rc7 31.Rc7 Qc7 32.Qb2 (32.Kg2 Qd6=) 32...Qd7 (32...Qc6 33.Qb3+=) 33.Qb3 (33.h3 Rc8+=) 33...Kh7 34.e5 Qd5 (34...Rc8 35.Kg2+=) 35.Qc3 Kh8 (35...Ne7 36.Qd3 Kg8 37.Kg2+=) 36.Qc7 Qd7 (36...Kg8 37.Kg2+=) 37.Qc3 (37.Qd7 Rd7 38.Kg2 b5=) 37...Rc8 38.Qa1 (38.Qb2 Qa4 39.Kg2 Rc2–/+) 38...Qd5 (38...Rc4 39.Qe1–/+) 39.Nh4 (39.Kg2 Rc2–/+) 39...Nh4 40.Rh4 Rc2 41.Qe1 (41.Qd1 Qc6 42.d5 ed5–/+) 41...Qc6 (41...Qc4 42.Kg2 Rc1 43.Qe3 Qf1 44.Kf3–/+) 42.Qe4 Qe4 (42...Kg8 43.Qc6 Rc6 44.Re4–/+) 43.Re4 Rc4 44.Kg2 (44.Re3 Rd4 45.Rc3 a5–/+) 44...Ra4 (44...b5 45.Kf3–/+) 45.Re3 Rd4 46.Rc3 Rd7 (46...a5 47.Kf3–/+) 47.h4 (47.Kf3 Kh7+=) 47...h5 48.Kf3 g6 (48...Kh7 49.Ke4+=) 49.Rc8 (49.Ke4 Kg7+=) 49...Kg7 50.Ke3 (50.Ke4 Rd1+=) 50...Rd5–/+ 51.f4 (51.Ke4 Ra5 52.Rc3 f5 53.Kf4 Ra4 54.Ke3 Re4 55.Kd3 Re5 56.Rc7 Kf6 57.Ra7 Rd5 58.Ke2 e5–/+) 51...Ra5 52.Rc3 Kf8 (52...Ra4 53.Kd3–/+) 53.Kf3 (53.Kd3 Ke7–/+) 53...Rc5 54.Rd3 (54.Rb3 b5–/+) 54...Ke7 55.Ke3 (55.Ke4 b5–/+) 55...Rc7 (55...a5 56.a4–/+) 56.Ke2 (56.Rb3 f6–/+) 56...Rd7 (56...f6 57.ef6 Kf6 58.Re3–/+) 57.Rc3 Kd8 (57...f6 58.ef6 Kf6 59.Ke3–/+) 58.Ke3 Rc7 (58...Rd5 59.Rc4–/+) 59.Rb3 Kc8 60.Rd3 (60.Ke4 Rc5–/+) 60...Kb7 (60...a6 61.Ke2–/+) 61.Rb3 (61.Kd2 b5–/+) 61...Rd7 (61...Rc5 62.Rd3–/+) 62.Rc3 (62.Ke4 a6–/+) 62...Ka6 (62...a6 63.Ke4–/+) 63.Rc4 Ka5 64.Ke2 Kb5 (64...b5 65.Rc6–/+) 65.Rb4 Kc5 66.Ke3 b5 67.Rb3 (67.Rb2 Rc7–/+) 67...a5 68.Rc3 Kb6 69.Rb3 (69.Rc8 b4–+) 69...Rc7 (69...b4 70.ab4 a4 71.Rd3–+) 70.Rd3 (70.Kd3 Rc4–/+) 0–1. Spiegel,Ulrich – Wimmer,Juergen, AK–1264, 1987.

8.Nh4 Bg6 9.Ng6 hg6 10.d3 Bd6 11.cd5 ed5 12.g3 0-0 13.Bg2 Re8 14.0-0 a6 15.Rc1 Ne5 16.Na4 a5 17.Nc5 Qe7 18.Be5 Be5 19.d4 Bd6 20.Qb3 ab4 21.ab4 Ne4 22.Be4 de4 23.b5 Ra5 (23...b6!? 24.Na4 cb5 25.Qb5 Ra5+=) 24.bc6+/– bc6 25.Qb6 Qc7 26.Qc7 Bc7 27.Nb3 Rb5 28.Rc6 Rb3 (28...Bg3!? 29.Nc5 Bh4+=) 29.Rc7+– Rd3 (better is 29...Reb8+–) 30.Rb1 Rf8 31.Re7 Rd2 32.Re4 Rd8 33.Rb7 g5 34.Ree7 Rf8 35.Rb5 g6 36.Rbe5 (36.Kg2 Kg7+–) 36...Kg7 37.Re8 (37.Rg5!? Rb8 38.Rg4 Rb6+–) 37...Re8 38.Re8 g4 39.Kg2 f5 40.Re6 Kf7 41.Ra6 Kg7 42.Ra1 Kf6 43.Ra7 g5 44.Ra6 Kf7 45.Rd6 Kg7 46.Rd8 Kf7 47.Kf1 Rd1 48.Ke2 Rh1 49.d5 (49.Rd5!? Kf6+–) 49...Rh2+/– 50.e4! f4 (50...fe4 51.Rd6 Combination) 51.gf4?? (better is 51.e5!? Ke7 52.Rg8 fg3 53.Rg5 Rf2 54.Ke3 Rf3 55.Ke4+–) 51...gf4 (51...g3!? 52.Rd7 Ke8=) 52.e5+= Rh5? (better is 52...g3 53.e6 Ke7 54.Rd7 Ke8+/–) 53.e6+– Kf6 54.Rd6 (54.Rf8!? Ke7 55.Rf7 Kd8 56.Rf4 Rd5 57.Rg4 Re5 58.Kf3 Re6 59.Rd4 Kc7+–) 54...Rh7 55.Rd8 Ke5?? (55...Rh5 56.Rf8 Ke7 57.Rf7 Kd8 58.Rf4 Rd5 59.Rg4 Re5 60.Kf3 Re6 61.Rd4 Kc7+–) 56.Rd7+– Rh8 57.e7 Re8 58.d6 Ke6 59.Rd8 Kf7 60.Kf1 1–0. Vastrukhin,Oleg – Lakerbaya,Timur, SouthFR Championship Open – Doroshkevic, 2010. (=1.a3 d5 2.b4 Nf6 3.Bb2 Bf5 4.Nf3 c6 5.e3 Nbd7 6.c4 e6 7.Nc3 Be7)

8.cd5 cd5

9.Bb5 0-0 10.0-0 Nb6 11.Ne5 (11.Nh4 Bg4 12.f3 Bh5=+) 11...Rc8 12.g4 Bg6 13.h3 (13.Ng6 fg6 14.g5 Ne4=+) 13...a6 14.Be2 Nc4 15.Nc4 (15.Bc4 dc4 (worse 15...Rc4 16.Nc4 dc4 17.f4=) 16.Ng6 fg6=+) 15...dc4-/+ (15...Rc4?! 16.f4 Qd6 17.Bc4 dc4 18.Qf3+=) 16.f4 Bd3 (16...Qd7 17.Rc1-/+) 17.Bd3 Qd3 18.Rc1 b5 19.Qe2 Qd7 20.Rfd1 Rfd8 21.e4 h6 (21...a5 22.ba5 Ra8 23.g5-/+) 22.Qe3 (22.g5 hg5 23.fg5 Nh7-/+) 22...Qd3 (22...a5 23.Na2-/+ (23.ba5?? Bc5-+)) 23.Kg2 Qe3 (23...Kf8 24.Qd3 Rd3 25.e5=+) 24.de3= Ne8 25.f5 (25.Rd4 Kf8=) 25...ef5 (25...Bf6 26.Kf3=+) 26.ef5 Bg5 27.Kf3 Nf6 28.Rd8 Rd8 29.Rd1 Rd1 30.Nd1 Nd5 Exerts pressure on the backward pawn (30...Bh4 31.e4=) 31.e4 Nb6 32.Ne3 (32.Bd4 Nd7=) 32...Kf8 (32...f6 33.Nc2=) 33.e5 Ke7 34.Ke4 Na4 35.Bd4 Kd7 36.Kd5 White prepares e6 (better 36.Kf3=) 36...Bd8?? (better 36...Be3 37.Be3 Nc3 38.Kc5 Nd1=+) 37.e6+- fe6 38.fe6 Ke8 39.Bg7 (39.Kc6 Bg5 40.Nd5 c3 41.Bc3 Nc3 42.Nc3 Ke7+-) 39...Bg5 40.Nc2 Ke7 41.Bd4 Bf4 42.Bc5 Nc5 43.bc5 a5 44.h4 c3 45.c6 Bd6 (45...Kd8+-) 46.Nd4 (46.g5 hg5 47.h5 Bf4+-) 46...Bb8 47.g5 hg5 48.hg5 b4 49.ab4 (49.Nf5 Ke8 50.g6 Kd8 51.e7 Kc8 52.e8Q Kc7 53.Qd7 Kb6 54.Qb7) 49...ab4 50.g6 (50.Nf5 Kf8 51.g6 c2 52.e7 Ke8 53.Ke6 Be5 54.g7 c1Q 55.g8Q) 50...Kf8?? (better 50...Kf6+-) 51.Nf5 c2 (51...b3 52.e7 Ke8 53.Ke6 Be5 54.g7 Bg7 55.Ng7) 52.g7 (52.e7 Ke8 53.Ke6 Be5 54.g7 c1Q 55.g8Q) 52...Kg8 53.e7 c1Q (53...Kf7 54.e8Q! Kf6 55.g8Q c1Q 56.Qeg6) 54.e8Q Kh7 55.g8Q 1-0. kaalmakreel (2175) - BrandochDaha (2060), ChessWorld.net, 2020.

9.d4 h6 10.Be2 0-0 11.0-0 a6 12.Rc1 Rc8 13.Qd2 Nb6 14.Rfe1 Nc4 15.Bc4 Rc4 16.Qe2 Qc7 (16...a5 17.ba5 Qa5 18.Ne5+=) 17.Nd2 (better is 17.Ne5 b5 18.Nc4 bc4 19.f3+/–) 17...Rc6+= 18.f3 Rc8 19.e4 de4 20.fe4 Bg6 21.b5 ab5 22.Nb5 Qb6 23.a4 Rc1 24.Rc1 (24.Bc1 Bb4–/+) 24...Rc1 25.Bc1 e5 (25...Qc6!? 26.Nc4 Be4–+) 26.Bb2 ed4 27.Bd4 Bc5 28.Qe3 Bd4 29.Qd4 Qd4 30.Nd4 Ne4 31.Ne4 Be4 32.a5 f5 33.g3 Kf7 34.Kf2 Kf6 35.Ke3 Ke5 36.h4 g5 37.hg5 hg5 38.Ne2 Bc6 39.Nc1 f4 40.gf4 gf4 41.Kf2 f3 42.Nb3 Kd6 43.Ke3 Bd5 44.Nd2? (better is 44.a6 ba6 45.Nd4–+) 44...Kc5 45.Nf3 (45.Kf2–+) 45...Bf3 46.Kf3 (46.Kd2–+) 46...Kb5 47.a6 Ka6 48.Ke3 Kb5 49.Kd3 Kb4 50.Kc2 Ka3 51.Kb1 b5 52.Ka1 b4 53.Kb1 Kb3 54.Ka1 Kc2 0–1. sixty_four (1725) – borde (1690), internet, 2013.

9.Be2 0-0 10.0-0 Rc8 (10...e5 11.d4 e4 12.Nd2=) 11.Nh4 Bg6 12.Ng6 fg6 13.Nb5 a6 14.Nd4 e5?? (better is 14...Qb6=) 15.Ne6+– Qb6 16.Nf8 Rf8 17.f4 ef4 18.Bd4 Qd8 (18...Qe6 19.Rf4 Bd6 20.Rf1+–) 19.ef4 Ne4 (19...Nb8 20.Re1+–) 20.d3 Nd6 21.Qb3 Nf5 (21...Nb6 22.Bf3+–) 22.Qd5 Kh8 23.Bf2 Bf6 (23...Nd6 24.Qd4+–) 24.Rac1 Re8 25.Qb7 Re2 (25...Bb2 26.Rc2 Ba3+–) 26.Rc8 (26...Re8 27.Rd8 Rd8 28.Qa6+–; 26.Qa6?! Re8+–) 1–0. orane (2000) – dahmer, Live Game Caissa's Web, 2004.

9.Be2 a5 10.b5 =.

9.Be2 h6 10.0-0 0-0 11.Nd4 Bh7 12.f4 e5 (12...a5 13.b5=) 13.fe5+= Ne5 14.Nf5 (14.Qb3 Nc6 15.Nf5 d4 16.Ne7 Ne7+=) 14...Bf5= 15.Rf5 Nc4 16.Bc4 (16.Qc2 Nb2 17.Qb2 Qd7=) 16...dc4 17.Rf4 Rc8 18.Qe2 (18.Rd4 Qb6=) 18...Qd7 (18...Qd3 19.Qd3 cd3 20.Raf1=) 19.Raf1 (19.Rd4 Qe6=) 19...a6 20.Rd4 (20.Rc4 Rc4 21.Qc4 Qd2=) 20...Qe6 21.Rff4 (21.Qf3 b6=) 21...Bd6 (21...b5 22.Qf3=+) 22.Rf6 Qf6 23.Ne4 Qg6 24.Nd6 Qb1 25.Kf2 (25.Qf1 Qb2 26.Nc8 Rc8+=) 25...Qb2 26.Nc8 Rc8 27.Rc4 Rc4 28.Qc4 Qd2 29.Kf3 Qd1 ½–½. Werk,Manfred – Buerger,Harald, Verbandsliga Nord, 1997.

8.Be2 0-0

9.0-0 Qc7 10.Rc1 (10.Nh4 dc4 11.Nf5 ef5 12.Bc4 Ne5=) 10...dc4= 11.Bc4 Rad8 12.Nd4 Ne5 13.Nf5 Nc4 14.Ne7 Qe7 15.Rc2 Rd3 16.Ne2 Nb2 (worse 16...Na3 17.Nc1 Nc2 18.Nd3 Nb4 19.Bf6 Qf6 20.Nb4+/-) 17.Rb2 Ra3 18.Nd4 (18.d4 Rd8-/+) 18...Rd8 19.Qc1 (19.Qc2 Qd6-/+) 19...e5-+ 20.Nf3 Ra4 (20...e4 21.Nd4-+) 21.Qc5 Qc5 22.bc5 e4 23.Nd4 Rb8?? (better 23...Nd7 24.Rb7 Nc5-/+) 24.Nc6+/- Ra8 25.Rb7 g6 (25...Rc4 26.f3+/-) 26.Rfb1 (26.Ne7!? Kg7+-) 26...a5 (26...Rc4!?+/-) 27.Kf1 Rc4 28.Rb8 (28.Rf7! Ne8 29.Rf4 Rc5 30.Ne7 Kg7 31.Re4+-) 28...Rb8+= 29.Rb8 (worse 29.Nb8 Rc5 30.f3 Rh5=+) 29...Kg7 30.Na5 Rc5 31.Nb3 Rc2 32.Rd8 (32.f3 Rb2+/-) 32...h5 (32...Ng4 33.h4+=) 33.Ke2 Kh6 (33...Rb2 34.Nc5 Rc2 35.Nb7+/-) 34.f3 ef3 35.Kf3 Kg5 36.h3 h4 37.d4 (37.e4 Nh5+-) 37...Nh5 (37...Nh7!? 38.Re8 Kh6+=) 38.Nc5 f5 39.Ne6 (39.Rc8 Rd2+/-) 39...Kf6 40.Nf4 (better 40.Rd6!? Rc1 41.Nf4 Ke7 42.Rg6 Rf1 43.Ke2 Nf4 44.ef4 Rf4 45.Ke3 Re4 46.Kd3+/-) 40...Nf4= 41.ef4 (41.Kf4?? Rf2) 41...Rc3 42.Kf2 Rc2 43.Kg1 Rc1 44.Kf2 Rc2 45.Kf3 ½-½. kaalmakreel (2185) - beaglehound (2175), ChessWorld.net, 2014.

9.0-0 Ne4 10.Ne4 Be4 11.d3 Bg6 12.Qb3 Bf6 13.Rfc1 dc4 14.dc4 Bb2 15.Qb2 Qf6 16.Qf6 Nf6 17.c5 Rfd8 18.a4 Bd3 19.Bd3 Rd3 20.b5 Nd7 21.bc6 bc6 22.Nd4 Rc8 23.Rab1 g6 (23...e5 24.Nf5 Kf8 25.Kf1=) 24.Kf1+= e5 25.Rb7 Nc5 26.Rc5 Attacking the isolated pawn on c6 26...ed4 27.Rd7 Rc3 (better is 27...Rd2!? 28.Rd4 Rd4 29.ed4 Rd8+=) 28.ed4+/– Ra3 29.Ra7 Rb8 30.g3 (30.g4 Rb1 31.Kg2 Rb4+/–) 30...Rb2 31.Re5 (better is 31.Kg2!? Raa2 32.Kf3 Rf2 33.Ke4 Rae2 34.Kd3 Rd2 35.Kc4 Rc2 36.Kb4 Rh2 37.Rc2 Rc2 38.a5+=) 31...Raa2= 32.Kg2?? (32.Re8 Kg7 33.f4 Rh2 34.Kg1 Rag2 35.Kf1 Rf2 36.Kg1 Rhg2 37.Kh1 Rg3 38.a5 Rf4 39.Kh2–+) 32...Rf2–+ 33.Kh3 (33.Kg1 Rg2 34.Kh1 Rh2 35.Kg1 Rag2 36.Kf1 Rd2–+) 33...Rh2 34.Kg4 Rhd2 (better is 34...Raf2 35.Rc7 h5 36.Kg5 f6 37.Kg6 fe5 38.de5 Rhg2 39.Rc8 Rf8 40.Rc6 h4–+) 35.Re8+= Kg7 36.Re4 h5 37.Kg5 Ra3 38.Ree7?? (better is 38.g4 Rg3 39.Rf4 Rg4 40.Rg4 hg4 41.Kg4 Rd4 42.Kf3–+) 38...Rf3 (38...Rf3 39.Rf7 Rf7 40.Rf7 Kf7–+) 0–1. Ivanets,Vladimir (2230) – Terenin,Leonid (2230), RUS–ch Seniors, 2009.

9.0-0 h6 10.d3 Bh7 11.d4 Ne4 12.Ne4 de4 (12...Be4 13.Nd2=) 13.Nd2+= f5 (13...Nf6 14.f3+=) 14.f3 ef3 15.Bf3 Bg5 16.Qb3 Qe7 17.Rae1 (17.b5 cb5 18.cb5 Nf6+/-) 17...Kh8 (better 17...e5+=) 18.e4?? (better 18.b5+/-) 18...Bd2-+ 19.Re2 Bg5 (19...fe4 20.Rd2 ef3 21.Rf3-+) 20.ef5 (20.e5 Rad8-+) 20...Bf5 21.d5 (21.c5 Bf4-+) 21...cd5 22.cd5 Rae8 (22...e5 23.Rfe1-+) 23.Rfe1 (23.Bh5 Rd8 24.de6 Nf6 25.Rf5 Nh5 26.Rf8 Rf8-+) 23...e5 24.Be5 Ne5 25.Re5 Qe5 26.Re5 Re5 27.Kf2 (27.Qc3 Bf4 28.g4 Re3-+) 27...Be3 (better 27...Bh4 28.g3 Be4 29.gh4 Bd5 30.Qd1-+) 28.Kg3 (28.Qe3 Re3 29.Ke3-+) 28...Rf6 29.Qc3 (29.h3 Rg6 30.Bg4-+) 29...Rg6 30.Kh4 Bg5 31.Kh5 Bf6 (31...Rf6 32.Qc8 Bc8 33.Be4 Re4 34.d6 Bg4) 32.Qc7 (32.Qe5 Be5 33.g4-+) 32...Bg4 (32...Rg5 33.Kh4 Rg2 34.Kh5 Rh2) 33.Kg6= Bh5?? (better 33...Bf5 34.Kf7 Kh7=) 34.Bh5+- Rg5 35.Kf7 Rh5 (35...Rd5 36.Qb7 Rd8+-) 36.Qb8 Kh7 (36...Bd8 37.Qd8 Kh7 38.Qg8) 37.Qg8 1-0. XuMEPA (2035) - shaf (2145), Rated Bullet game, lichess.org, 2014.

9.cd5 Nd5 10.Nd5 ed5 +=.

9.h3 dc4 10.Bc4 h6 11.g4 +=.

9.h3 Ne4 10.Ne4 de4 (10...Be4 11.c5=) 11.Nh2 Qc7 12.Ng4 (12.Nf1 Bg6=) 12...Bd6 (12...Bg4 13.Bg4 Bf6 14.Bf6 Nf6 15.Qc1+=) 13.d4 (13.c5!? must definitely be considered 13...Be7 14.Qc2=) 13...ed3+= 14.Bd3 Bd3 (14...c5!? 15.e4 Bg6+=) 15.Qd3= Rad8 16.f4 (16.Rd1 Nb8 17.Qc3 f6=) 16...f5 Black threatens to win material: f5xg4 (16...Be7 17.Qc3 Bh4 18.g3=) 17.0-0-0 (17.Qc3 e5 18.Ne5 Be5 19.fe5 Rde8+=) 17...Nb8 (better is 17...Bf4 18.ef4 fg4+=) 18.Qc2? (18.Qb3 Qe7 19.c5 Bc5 (worse is 19...fg4 20.Rd6 Rd6 21.cd6 Qd6 22.hg4+=) 20.bc5 fg4 (20...Qc5? 21.Kb1 Qe7 22.Ne5+/–) 21.hg4 Na6=) 18...fg4?? a transit from better to worse (better is 18...c5 and Black could have gained the advantage 19.b5 fg4 20.hg4 g6+=) 19.hg4+= g6 20.g5 White gets more space 20...Bf4 21.ef4 (better is 21.Qc3!? is worth consideration 21...Rd1 22.Rd1 Be3 23.Qe3=) 21...Qf4–/+ (21...Rf4?? 22.Rd8 Qd8 23.Qc3 Rc4 24.Qc4 Qg5 25.Kb1+–) 22.Kb1 Qf5 (22...e5 23.Rde1 Nd7–/+ (23...Qg5?! 24.Re5 Qd2 25.Qe4 Qd3 26.Qd3 Rd3 27.Re7+=)) 23.Rd8= Rd8 24.Bf6? 'the bishop is the bishop!' (24.Qf5 ef5 25.Re1 Kf8=) 24...Rd2 (better is 24...Rd3!?–/+) 25.Qf5= White has a mate threat 25...gf5 White has a new backward pawn: g5 26.Re1 White threatens to win material: Re1xe6 26...Kf7 27.Rh1 f4? 28.Rh7+/– Kg6 29.Rh6?? there were better ways to keep up the pressure 29...Kf5= 30.Rh2 f3?? throws away the game 31.g4!+– Discovered attack: g2, h2–d2 31...Ke4 32.Rd2 Ke3 33.Kc1 Na6 34.g6 c5 35.bc5 Nc7 36.g7 (36.g7 f2 37.Bd4 Kf4 38.Bf2 Ne8 39.g8Q Ng7 40.Qg7 Kf3 41.Qf6 Kg2 42.Be1 Kg1 43.Qf2 Kh1 44.Qf1) 1–0. Quast,Michael (1720) – Fischer,Rudi (1905), Berlin op, 2002. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 e6 4.e3 Nf6 5.a3 Nbd7 6.c4 c6 7.Nc3 Be7)

9.Nh4 dc4+= 10.Nf5 ef5 11.Bc4 Ne4 (11...Ne5!? 12.Be2 Nd3 13.Bd3 Qd3+=) 12.Ne4 fe4 13.0-0 Bf6 14.Qc2 Bb2 15.Qb2 Qg5 16.Qc2 Rfe8 (16...Nf6!?=) 17.f3+/– ef3 18.Rf3 Ne5 19.Rf5 (19.Rg3 Qe7 20.Bb3 a5+/–) 19...Qg4 (19...Qg6 20.Be2+=) 20.Rf4 (20.Bb3 g6 21.Rf4 Qg5+–) 20...Qh5 21.Raf1 (21.Bb3 Kh8+=) 21...Nc4+= 22.Qc4 Re7 23.Rf5 Qg6 24.b5 (24.Qd4 f6+=) 24...cb5 25.Qb5 Rd8 26.Rd5 Rd5 27.Qd5 Qe6 28.Qe6 Re6 29.Rb1 Re7 30.Rc1 f5 31.Kf2 ½–½. Logvinov,Kirill (2105) – Kostenkov,Nikita (1810), Anna RUS, Gagarin Mem, 2014.

9.Nh4 dc4 10.Nf5 ef5 11.d4 =.

9.Nh4 Be4 10.d3+= Bg6 11.Ng6 fg6 12.d4 (12.0-0 c5 13.cd5 ed5+=) 12...Qc7 (12...Nb6 13.cd5 cd5 14.Rc1=) 13.Rc1 (13.0-0 Bd6 14.f4 Nb6+–) 13...Rf7 (13...Nb6 14.cd5 ed5 15.0-0+=) 14.Qb3 (14.0-0 Bd6 15.f4 Nb6+=) 14...Raf8 (14...Bd6 15.f4=) 15.0-0 a6 (15...Bd6!? 16.f4 Kh8+=) 16.cd5+/– Nd5 (16...ed5 17.Nd5 Nd5 18.Qd5+=) 17.Bg4 (17.Nd5 ed5 18.Qd5+/–) 17...Qd6? (17...Bd6 18.Be6 Bh2 19.Kh1 Nc3 20.Bf7 Rf7 21.Rc3 Bd6+–) 18.Ne4+– Qb8 19.Be6 N7f6 20.Nf6 Nf6 21.Bf7 Rf7 22.Qe6 h5 23.f3 g5 24.e4 Ne8 25.d5 Nc7 26.Qh3 cd5 27.Be5 Bd8 28.ed5 Qa7 29.Kh1 Qe3 30.Bc7 Bc7 31.Qc8 Kh7 32.Rc7 Rc7 33.Qc7 Qd3 34.Re1 Qd5 35.Qc2 Kh8 36.Re8 Qg8 37.Rg8 Kg8 38.Qc8 Kh7 39.Qf5 Kh6 40.Kg1 b6 41.Kf2 a5 42.Ke3 ab4 43.ab4 b5 44.Ke4 g6 45.Qf8 Kh7 46.Qe7 Kg8 47.Ke5 Kh8 48.Kf6 Kg8 1–0. Wagle,Rainer Georg – Kramer,Maren, Baden ch b18, 2001.

9.Nh4 Bg6 10.Ng6+= hg6 (10...fg6 11.0-0=) 11.Qc2 (11.cd5 Nd5 12.Nd5 cd5+=) 11...b6 (11...a5 12.c5+=) 12.cd5 cd5 13.Ba6 Ne5 (13...Ne8 14.Rc1+/–) 14.Ne2 (14.d3 Ne8+/–) 14...Nc4+= 15.Nd4 (15.Bc3 Ne4+=) 15...Qd6 (15...Nb2 16.Qb2 Bd6 17.Nc6+=) 16.Nb5 (16.Bc4 dc4 17.Qc4 Rfc8+/–) 16...Qd7 17.Bc3 Ne4 18.Bg7 (better is 18.0-0!?+=) 18...Kg7+= 19.d3 Ncd6 (19...Na3 20.Qb2 Bf6 21.Nd4+=) 20.de4 Nb5 21.Qa4 Qc7 (worse is 21...de4 22.Bb5 Qd6 23.Rd1=) 22.Qb5? (better is 22.Bb5 Qc3 23.Ke2 Qb2 24.Kf3 de4 25.Ke4 Qf2 26.Kd3 Rfd8 27.Bd7–+) 22...Qc3 23.Ke2 Qb2 (23...de4?! 24.Rhc1 Qb2 25.Kf1=) 24.Kf3 de4 25.Ke4 Qf2 26.Qe2 (26.Qe5 Bf6 27.Qf4 Qg2 28.Qf3 Qc2 29.Kf4 Ba1 30.h4–+) 26...Qf5 27.Kd4 Bf6 0–1. Pagalis,Giorgios – Vandoros,Nikolaos (1750), Honour to National Resistance, 2003.

8.Be2 h6

9.0-0 0-0 10.Qb3 (10.cd5 ed5 11.Nd4 Bg6=) 10...Qc7 (10...dc4 11.Qc4 Nb6 12.Qf4=) 11.Rac1 (11.Nd4 dc4 12.Qc4 Ne5=) 11...Nb6 (11...dc4 12.Bc4 Qd6 13.Nd4=) 12.c5+= Nbd7 13.d4 (13.Nd4 Ng4 14.f4 Rfe8+=) 13...e5 (13...b6 14.Nh4 Bg4 15.f3=) 14.de5+= Ne5 15.Nb1 (15.Ne5!? Qe5 16.Rfd1=) 15...Nf3=+ 16.Bf3 Ng4 (16...Rfe8 17.Nd2=) 17.Bg4 Bg4 18.Nd2 (18.Qc3 Bf6 19.Qd2 Bb2 20.Qb2 Rfe8=) 18...Rad8 (18...Rfe8 19.Qd3 Rad8 20.Bg7 Kg7 21.Qd4 Bf6 22.Qg4 Kh7 23.Rcd1+/–) 19.h3 (19.Qa4 Be2 20.Rfe1 Ba6=) 19...Be6 (19...Bf5 20.Rcd1=+) 20.Qd1 (20.Bd4 Rfe8=) 20...Rfe8 21.Nf3 (21.Qh5 Bg5=) 21...Bf5 22.Be5 Qd7 23.Re1 Be4=+ 24.Bd4 Qf5 25.Nh2 Bh4 26.Re2 Re6 27.f3 Bd3 28.Rd2 Ba6 29.a4 Bg5 30.Rc3 Rde8–/+ 31.f4 Bf4!–+ 32.Qf3 Bh2 33.Kh2–/+ Qf3 34.gf3 g5 35.Rg2 Kh7 36.f4 Rg8 37.f5 Re4 38.Rc1 Bd3 39.Rd1 Bc4 40.Rb1 a6 41.Rbg1 ½–½. Goetzel,Alfred (1740) – Bayer,Marius (1610), Nuremberg op, 2001.

9.0-0 dc4 10.Bc4 Nb6 11.Be2=.

9.0-0 Bh7 10.d4 (10.cd5 ed5 11.d3 0-0=) 10...0-0= 11.Qb3 Nb6 (11...Bf5 12.Rac1=) 12.c5+= Nbd7 13.Ne5 (13.b5 Bf5=) 13...Re8 (13...Ne5 14.de5 Nd7 15.f4=) 14.f4 Ne4 15.Ne4 Be4 16.a4 Nf6 17.Bf3 (17.a5 Qc7=) 17...Bf3 18.gf3 Ne4?? (better 18...Qc7=) 19.fe4+- de4 20.Kh1 Bf6 21.Rg1 Be5 22.fe5 Qh4 (22...a5 23.ba5 Qd5 24.Qd1+- (24.Qb7?! Rab8 25.Qc7 Rb2+-)) 23.Qc2 Qh3 (23...a5 24.Qg2 g6 25.Bc3+-) 24.Qf2 (better 24.Qe4 Qf5 25.Qg2+-) 24...f5 (24...Qf5 25.Qg3 Qf3 26.Qf3 ef3+-) 25.ef6 Rf8 (25...Kf8 26.fg7 Kg8 27.Raf1 Qf3 28.Qf3 ef3 29.Rf3+-) 26.Rg7 Kh8 27.d5 cd5 (27...e5+-) 28.f7 e5 (28...d4 29.Rg8 Kh7 30.Rag1 Qg4 31.R1g4 Rg8 32.fg8B Rg8 33.Qf7 Rg7 34.Qg7) 29.Be5 (29.Rg8 Kh7 30.Rag1 Qh2 31.Kh2 Rg8 32.Qf5 Kh8 33.Be5 Rg7 34.Bg7) 29...Rad8 (29...Qe6 30.Qf4 Rf7 31.Rf7 Qe5 32.Qe5 Kg8 33.Qg7) 30.Rag1 (30.Rag1 Qf3 31.R7g2 Kh7 32.Qf3 ef3 33.Rg7 Kh8 34.Rg8 Kh7 35.R1g7; 30.Rg4 Kh7 31.Qf5) 1-0. JoaBN (2480) - ZibbitVideos (2485), Rated Bullet game, lichess.org, 2014.

9.b5 dc4 10.Bc4 cb5 11.Bb5=+.

9.b5 Rc8 10.0-0 (10.bc6 bc6 (worse 10...Rc6 11.Nd4+–) 11.0-0 0-0=) 10...0-0 (10...dc4 11.bc6 bc6 12.Bc4=) 11.Rc1 (11.cd5 cd5 12.Nd4 Bh7=) 11...Bh7 (11...dc4 12.Bc4 cb5 13.Nb5 Rc4 14.Rc4=) 12.bc6 bc6 13.cd5 (13.Na4 Bd6=) 13...cd5 14.Nb5 a6 15.Na7 Rc1 16.Qc1 Bc5 (16...Qa8 17.Bd4=) 17.Nc6 Qb6 18.Nb4 (18.Bf6 Nf6 19.d4 Bd6=) 18...a5=+ 19.Na6 Bd6 20.Nd4? (better 20.Bd4 Qb3 21.Bb2=+) 20...Ne5–+ 21.Ba1 (21.Qc3 Nc4! 22.Bc4 dc4 23.Ne6 fe6 24.Qc4 Bh2 25.Kh2 Qd6 26.Kg1–+) 21...Nd3 22.Qc6 Qc6 23.Nc6 Ra8 (23...Ba3?! 24.Na5 Rc8 25.Bc3–/+) 0–1. Aydin,Hasan Bora (2025) – Ozkan,Ervin (2220), Turkish Cup, 2017. (=1.a3 d5 2.Nf3 c6 3.e3 Nf6 4.c4 Bf5 5.Nc3 e6 6.b4 Nbd7 7.Bb2 Be7)

9.cd5 ed5 10.0-0 0-0=.

7.c5 a5

8.Nd4 Bg4 9.f3 Bh5 10.Be2 e5 11.Nb3 =.

8.Be2 ab4 9.ab4 Ra1 10.Ba1 =.

8.Be2 Be7 9.0-0 0-0 10.d3 ab4 11.ab4 Qc7 (11...Ra1 12.Ba1 Bg4 13.Nbd2=) 12.Nbd2 (12.Nh4 b6 13.Nf5 ef5=) 12...Bg4 (12...b6 13.Nb3 bc5 14.bc5 Nc5 15.Nc5 Bc5 16.Qc2+=) 13.h3= Bh5 14.Qc2 Rfe8 (14...b6 15.cb6 Qb6 16.Bc3=) 15.Nb3 (15.Rfc1 e5=) 15...Bf3 (15...e5 16.Rfb1=) 16.Bf3 e5 17.Ra8 (17.Rfc1 Reb8=) 17...Ra8 18.Ra1 Ra1 19.Ba1 b6 20.d4 e4 21.Be2 Ne8 (21...Kh8 22.Qa2=) 22.Qa2 (22.b5 cb5 23.Bb5 Nef6=) 22...f5 (22...Qb7 23.Bc3=) 23.Bc3 (23.Qa8 Kf7+=) 23...Qb7 24.Qa6 (24.cb6 Nb6 25.Na5 Qd7+=) 24...Qb8 25.f4 (25.Qa4 b5 26.Qa6 Qc7+/–) 25...Nc7= ½–½. Hal1958 – E2e4, playchess.de, 2005.

7.c5 b6

8.d4= a5 9.Nbd2 (9.Ne5 Ne5 10.de5 Nd7=+) 9...Qb8 (9...ab4 10.ab4 Ra1 11.Ba1=+) 10.Bc3 Ne4 (10...ab4 11.ab4 Ra1 12.Ba1=+) 11.Ne4= Be4 12.Be2 (12.b5 bc5 13.bc6 Nf6+=) 12...Nf6 (12...ab4 13.ab4 Ra1 14.Ba1=) 13.0-0 (13.Ne5 Qb7 14.f3 ab4 15.ab4 bc5 16.Ra8 Qa8 17.dc5 Bf5+–) 13...Be7 (13...Ng4!? 14.g3 ab4 15.ab4 Ra1 16.Ba1 Nf6=) 14.Ne5+= Qb7 15.Bd3 (15.cb6 ab4 16.Bb4 Bb4 17.ab4 0-0+/–) 15...Bd3 (15...ab4 16.Bb4 Bd3 17.Nd3=) 16.Nd3 (16.Qd3 ab4 17.Bb4 b5=) 16...0-0 (16...Ne4 17.Qc2=) 17.f3 (17.ba5 Ne4 18.Qb3 Nc3 19.Qc3 ba5+=) 17...Nd7 (17...ab4 18.Bb4 b5 19.a4=+) 18.Qb1 (18.cb6 Nb6 19.ba5 Nc4=) 18...Qa6 (18...ab4 19.Bb4 (< 19.Qb4 Qa6 20.Rfd1 Rfb8–/+) 19...b5 20.Bd2=) 19.Qc2 Ra7 (19...ab4 20.Nb4 Qc8 21.Nd3=) 20.Qd2 (20.Rab1 Bg5 21.f4 Be7+=) 20...Rfa8 21.Rfb1 Qc8 22.Qe1 Qc7 23.Qc1 Kf8 24.Qb2 Rb8 25.Qc2 Kg8 26.Be1 Rba8 27.Bg3+= Qd8 28.Ne5 Ne5=+ 29.Be5 f6 30.cb6= Qb6 31.ba5 Qa5 32.Bg3 c5 33.Be1 Qa4=+ 34.Qa4 Ra4 35.dc5 Bc5 36.Kf2 Ra3 37.Ra3 Ra3 38.Bd2 Ra2 39.Ke2 Kf7 40.Rb5 Bd6–+ 41.h3 Be5 42.Rc5 Kg6 43.g4 d4 44.f4 Bd6 45.Rc4 de3 46.Ke3 Ra3 47.Bc3 e5 48.f5 Kg5 49.Ke4 Kh4 50.Kd5 Ra6 51.Bb4 Bb4 52.Rb4 Kh3 53.g5? h6 54.gf6 gf6 55.Ke4 Kg4 56.Rc4 h5 57.Rc1 Ra4 58.Ke3 Kf5 59.Rf1 Rf4 60.Rh1 h4 61.Rh3 Kg4 0–1. Stolte,K – Den Uijl,Simon, Soest op, 1995.

8.d4 Qc7 9.Bd3 (9.Nh4 Be4=) 9...Bd3 10.Qd3 g6 (10...a5 11.0-0+=) 11.Nbd2 (11.0-0 Bg7=) 11...Bg7 12.0-0 0-0 13.Rfc1 b5 (13...Rfb8 14.Rab1=) 14.Ra2 (14.a4 ba4 15.Ra4 Rfb8=) 14...Rfe8 (14...a5 15.Rca1=) 15.Rca1+= Re7 (15...a5 16.a4 ab4 17.ab5 Ra2 18.Ra2 cb5 19.Qb3+=) 16.a4 Ree8? (better is 16...ba4!? 17.Ra4 Ree8+=) 17.ab5+– cb5 18.Qb5 Reb8 19.Qa4 (19.Qa5 Qb7+–) 19...Ne8 (19...a6 20.Bc3+–) 20.Bc3 (20.b5 Qc8 21.Rb1 Nc7+–) 20...Qd8 (20...a6 21.Qc2 Qc6 22.Ra5+–) 21.Qc2 Qc7 22.Ra6 Rb5 (22...Nf8 23.Qd3+–) 23.Qa4 Qb8 (23...Rbb8 24.Ra7 Ra7 25.Qa7+–) 24.Ra7 Ra7 25.Qa7 Nc7 (25...Qd8 26.Qa6 Nc7 27.Qd6+–) 26.Qb8 Rb8 27.Nb1 Nb5 28.Bd2 Kf8 29.Kf1 (29.Nc3 Nc3 30.Bc3 Ke8+–) 29...Ke8 (29...e5 30.c6 e4 31.Ne1+–) 30.Ra5 (30.Nc3 Nc3 31.Bc3 h6+–) 30...Nf6 31.Nc3 Nc7 (31...Nc3 32.Bc3 Ne4 33.Be1+–) 32.b5 Kd8 (32...Nd7 33.e4+–) 33.b6 Na8 34.Ne5 Kc8 35.Nc6 (better is 35.Nf7 Nb6 36.Nd6 Kd8 37.cb6+–) 35...Kb7 (35...Nb6 36.Nb8 Nc4+–) 36.Nb8 (36.Ne7 Nb6 37.c6 Kc7 38.Nb5 Kd8 39.c7 Ke7 40.cb8Q Ne8 41.Bb4 Kd7 42.Qb7 Nc7 43.Qc7 Ke8 44.Qe7) 36...Kb8+– 37.Ra7 1–0. Fournier,Frederic (2215) – Di Bella Thomas, Open, 2001.

7.c5 Qc7

8.Nc3 e5 9.d4 =.

8.Nc3 Be7 9.Be2 h6 (9...e5 10.0-0=) 10.0-0 (10.Nd4 Bh7=) 10...0-0 11.d3 (11.Nd4 Bh7=) 11...b6 12.cb6 ab6 13.Rc1 (13.Nd4 Bg6=) 13...c5 (13...e5 14.Nd2=) 14.Nb5 Qb8 (14...Qb7 15.Bc3=) 15.Ne5?? (better is 15.Bc3=) 15...Ne5–+ (16.f4 Ned7–+) 0–1. De Visser,Arno – Bernardino, corr ICCF Cup VI–VII, 1986.

8.d4 Be7 9.Nc3 0-0 10.Bd3 Bd3 11.Qd3 e5 (11...b6 12.0-0=) 12.de5 Ne5 13.Ne5 Qe5 14.h3 (14.Rd1 Qe6=) 14...Qg5 (14...b6 15.b5=) 15.0-0 Nd7 (15...b6 16.Na4 bc5 17.Nc5 Bc5 18.Bf6 Qf6 19.bc5=) 16.Ne2 (16.f4 Qg3=) 16...a6 (16...b6 17.Nd4 bc5 18.Nc6=) 17.Ng3 (17.f4 Qg6 18.Qg6 fg6+=) 17...Bf6= 18.Bf6 Nf6 19.Qf5 Qf5 (19...Qh6 20.Qf3=) 20.Nf5 Rfe8 (20...Ne4 21.Rfd1+=) 21.Nd6 Re7 22.Rad1 Ne4 23.Nf5 (23.Ne4 Re4 24.Rd3 Rae8=) 23...Re5 24.Nd4 g6 (24...a5 25.Ra1=) 25.Rd3 (25.f3 Nc3 26.Rd3 Nb5+=) 25...Re7 (25...a5 26.f3 Ng3 27.Rb1+=) 26.Re1 Ng5 27.f3 f5 28.Kf2 Rae8= 29.h4 Nf7 30.a4 Ne5 31.Rb3 f4 32.Nc2 fe3=+ 33.Rbe3 d4 34.Rb3 d3 35.Ne3 Kf7 36.Rd1+= Nf3 37.gf3 Re3= 38.Rdd3 Re2 39.Kg3 Ra2 40.Rd7 Re7 41.Re7 Ke7 42.Re3 Kf7 43.a5 Rb2 44.Re4 Kf6 45.Kg4 h6 46.Kf4 Rb3 47.Kg4 g5 48.hg5+= hg5 49.f4 gf4 50.Kf4 Rh3 ½–½. Gottert,H – Korbela,Lubomir (2250), Sala op Slovakia, 1994.

8.d4 Bg4 9.Nbd2 Ne4 10.Be2 Nd2 11.Nd2 Be2 12.Qe2 Be7 13.0-0 0-0 14.f4 Rae8 15.Bc3 f6 (15...g6 16.Rad1=) 16.e4+= de4 (16...b6 17.Nf3+=) 17.Qe4+/– e5? (better is 17...Kh8!?+/–) 18.fe5+– fe5 19.Rf8 (19.de5 b6+–) 19...Bf8 20.Re1 (20.de5 Nf6 21.Qd3+– (worse is 21.ef6 Re4 22.Ne4 Qd7+=)) 20...Nf6+= 21.Qd3 (21.Qh4 ed4 22.Bd4 Re1 23.Qe1 Qf7+=) 21...ed4= 22.Re8 Ne8 (22...dc3!? 23.Rf8 Kf8 24.Qc3 Qf4=) 23.Bd4+= Qf7 24.Qc4 (24.Nc4 Be7+=) 24...Nc7= 25.Qf7 Kf7 26.Nc4 Ke6 27.Na5 (27.Bb2 Kd5 28.Ne3 Ke4=) 27...Kd5+= 28.Bf2 Nb5 29.Nb7 (29.a4 Nc3 30.Nb7 Na4+=) 29...Na3–/+ 30.Nd6 (30.Be1 Nc2 31.Bd2 Kc4–+) 30...Bd6 (30...Nc2 31.b5–/+) 31.cd6 Kd6 32.Ba7 Nc2 33.Bc5 Kd5 34.Kf2 Kc4 35.Bf8 g6 36.Kf3 Nb4 37.Kf4 Nd5 (37...c5!?–/+) 38.Kg5= Ne3 39.g4 Kd5 40.h4 Ke6 41.Bc5 Ng2 42.h5 gh5 43.gh5 Kf7 44.Bf2 ½–½. Heinzel,Peter (1940) – Bonath,Michael (1720), Dortmund Germany, Sparkassen Open–B, 2016.

8.Be2 e5 9.0-0 b6 10.d4 bc5 11.de5=.

8.Be2 e5 9.0-0 Be7 10.h3 a5 (10...0-0 11.d4 e4 12.Nfd2=) 11.Nc3 (11.d4 e4 12.Ne5 ab4 13.ab4 Ra1 14.Ba1 0-0+=) 11...ab4 (11...0-0 12.d4+=) 12.ab4= 0-0 13.d3 b6 (13...Rfb8 14.Na4=) 14.d4 (14.Na4 bc5 15.Nc5 Qd6=) 14...e4+= 15.Nd2 Ra7 (15...Ra1 16.Qa1 Rb8 17.Rc1+=) 16.Ra7= Qa7 17.Qa1 (17.b5 Rc8 18.bc6 Rc6=) 17...Ra8 (17...Qc7 18.Qa6=) 18.Qa7= Ra7 19.Ra1 Ra1 20.Ba1 bc5 (20...b5 21.g4 Be6 22.f3 ef3 23.Bf3=) 21.dc5+= Nb8 (21...Nf8 22.Nb3 Bd7 23.Na4+=) 22.Nb3 Bc8 (22...Kf8 23.b5+=) 23.Na5 (23.b5 Kf8+=) 23...Bd8 24.Na4 Ba5 (24...Nfd7 25.Bd4 f6 26.Nc3+=) 25.ba5+/– Ba6 26.Ba6 (26.Bd1 Nfd7+/–) 26...Na6+= 27.Bd4 (27.Bf6 gf6 28.Kf1 f5+=) 27...Nd7 Exerts pressure on the isolated pawn 28.Kf1 (28.f3 Kf8+=) 28...Kf8= 29.Ke2 Ke7 30.f3 f5 (30...h5 31.Bg7 f6 32.g4 ef3 33.Kf3 Ne5 34.Kf4=) 31.fe4 (31.g4 g6+=) 31...fe4= 32.Kf2 (32.Kd2 g5=) 32...Ke6 33.g4 (33.h4!?=) 33...Ne5+= 34.Ke2 g6 35.Nb2 (35.Be5 Ke5 36.Kf2 h5+=) 35...Nf7 (35...Nf3 36.Kf2–/+) 36.Kf2 (36.h4 Nd8–/+) 36...Nd8 37.Na4 Nb7 38.Kg3 (38.Bc3 Nbc5 39.Nc5 Nc5–/+) 38...g5 (38...Na5 39.g5–+) 39.h4 (39.Bc3!?–/+) 39...gh4–+ 40.Kh4 Na5 41.Kg5 Nb3 42.Kh6 Nd4 43.ed4 Nb8 (better is 43...e3!? 44.Nc3 Nc5–+) 44.Kh7–/+ Nd7 45.g5 (45.Kh6 e3 46.Nc3 Nc5 47.dc5 d4–+) 45...Kf5 (better is 45...Nf8 46.Kh6 Kf5–/+) 46.g6?? (46.Kh6 Nf8 47.Nc3–+) 46...Nf8–+ 47.Kg7 Ng6 48.Kf7 e3 49.Nc3 Nf4 50.Ke7 e2 51.Ne2 Ne2 52.Kd7 Nd4 53.Kd6 (53.Kc7 Ne6 54.Kc6 d4–+) 53...Ke4 54.Kc7 Kd3 (54...Kd3 55.Kd6 Nb5 56.Kc6 Kc4–+) 0–1. hal1958 – e2e4, playchess.de, 2004.

8.Be2 e5 9.0-0 Be7 10.Nh4 Bb1 (10...Be6 11.f4 Ne4 12.f5 Bh4 13.fe6 fe6 14.Nc3 Nc3 15.Bc3=) 11.Qb1 Ne4 12.Nf5?? (better 12.Nf3+=) 12...Nd2–+ 13.Qc2 Nf1 14.Kf1 (14.Rf1 Bf8–+) 14...Rg8 (14...Bf8!? 15.Kg1–+) 15.Ne7 Ke7 16.h3 g6 17.a4 e4 18.Qc3 Qh2 Threatening mate: Qh1 19.f3 Rae8 (better 19...ef3 20.Bf3 f5–+) 20.f4? (better 20.fe4 de4 21.Rd1–/+) 20...g5 (20...f5!? 21.Kf2–+) 21.f5 f6 22.Bh5 (22.b5 g4 23.hg4 h5–+) 22...Ref8 23.Qe1 Ne5 24.Be2 (24.Rd1 Nd3 25.Rd3 ed3–+) 24...Nd3 (better 24...g4 25.hg4 Ng4 26.Bg4 Rg4 27.Qf2–+) 25.Bd3 ed3 26.Qd2 (26.Kf2–+) 26...g4 27.h4 (27.Qf2 gh3 28.g3 Qg3 29.Qg3 Rg3–+) 27...Qh4 (27...Qh1 28.Kf2 g3 29.Kf3 Qh4 30.Bf6 Rf6 31.Qd3 Qg4) 28.Qf2 (28.e4 g3 29.Bd4–+) 28...g3 29.Qg1 (29.Bc3 gf2 30.Bf6 Rf6 31.g4 Qg4 32.Kf2 Qe2) 29...Qb4 (29...Qg4 30.Qf2 gf2 31.Bf6 Kf7 32.g3 Qe2 33.Kg2 f1Q) 30.Bd4 Qc4 31.Rd1 (31.Qf2 gf2 32.g4 Rg4 33.Bf6 Rf6 34.e4 Qd4 35.ed5 Rg1) 31…d2 0–1. petrobbo (1995) – allanchessw (2025), ChessWorld.net, 2019.

8.Be2 e5 9.Nh4 Be6=.

8.Be2 Be7 9.d3 0-0 (9...e5 10.0-0=) 10.0-0 (10.Nh4 b6 11.Nf5 ef5 12.cb6 ab6=) 10...Rae8 (10...e5 11.Nc3=) 11.Nh4 Bg6 12.Nd2 (12.Ng6 fg6 13.d4 b6=) 12...e5 (12...Ng4 13.Bg4 Bh4 14.Nf3=) 13.Ng6 hg6 (13...fg6 14.Rc1=) 14.Bg4 (14.d4 e4+=) 14...Ng4 15.Qg4 Bf6 (15...b6 16.cb6 ab6 17.Nf3+=) 16.a4 (16.e4 b6+=) 16...e4 17.d4 Bd8 (17...Be7 18.Qh3=) 18.b5 (18.Qe2 Kh7=) 18...Nf6 19.Qe2 Qd7 20.h3 Bc7 21.f4 (21.b6 ab6 22.cb6 Bd6+=) 21...Nh7 (21...ef3 22.Rf3 g5 23.Raf1=) 22.Bc3 (22.Ba3 Nf6=) 22...Bd8 (22...g5 23.fg5 Ng5 24.Qh5=) 23.Rab1+= Bh4 24.Qg4 (better is 24.a5!?+=) 24...Qg4+= 25.hg4 g5 26.bc6 bc6 27.Rb7 (27.f5 Nf6 28.g3 Bg3–/+) 27...gf4 (27...Nf6!?–/+) 28.ef4+= (worse is 28.Rf4 Re7 29.Re7 Be7–/+) 28...e3 (28...Re7 29.Re7 Be7 30.Rb1=) 29.Nf3= e2 (29...Bf2 30.Rf2 ef2 31.Kf2+=) 30.Rc1 (30.Rfb1!? Bg3 31.Ne5 Bf4 32.Nc6 Be3 33.Kh2=) 30...Bg3+= 31.Bd2 (31.f5 Nf6+=) 31...Nf6–/+ 32.Ra7 Ng4 33.Ne5 (33.Ra6 Re6 34.f5 Bf2 35.Kh1–/+) 33...Nf2 (33...f5 34.a5–+) 34.a5? (34.Nc6 Nd3 35.Rb1 Re6 (35...Nf4? 36.Ne7 Kh7 37.Bf4 e1R 38.Re1 Be1 39.Nd5+–; 35...Bf4?! 36.Ne7 Re7 37.Re7 Bd2 38.Re2=) 36.Ne7 Kh7–/+) 34...Ra8?? (better is 34...Ne4 35.Be3 Kh7–+) 35.Nc6?? (35.Ra8 Ra8 36.Rb1 Nd1=) 35...Nd3?? (35...Ra7 36.Be1 Rc7 37.Nb4–+) 36.Rb1?? (better is 36.Ra8 Ra8 37.Rb1+=) 36...Ra7–+ 37.Na7 g6 38.c6 Kg7 39.c7 (39.Be1 Be1 40.Re1 Ne1 41.Kf2 Ng2 42.Ke2 Nf4 43.Kf3–+) 39...Bf2 0–1. Hal1958 – Snillie, playchess.de, 2005.

8.Nh4 Bb1 9.Rb1 b6 =.

7.c5 Be7

8.d3 0-0 9.Be2 a5 10.Nbd2 b6 11.cb6 ab4 12.b7 Ra7 13.ab4 Rb7 14.0-0 (14.Nd4 Qb6= (14...Rb4? 15.Nc6 Rb2 16.Nd8 Rd8 17.Rb1+–; worse is 14...Bb4 15.Nc6 Bd2 16.Qd2+=)) 14...Rb4 15.Ba3 Rb7 16.Be7 Qe7 17.Nd4 c5 18.Nf5 ef5 19.Nf3 Rfb8 20.Re1 Ne5 21.Ne5 Qe5 22.Bf3 Rb3 23.Qc2 Rc3 24.Qe2 h6 25.Rac1 Rc1 26.Rc1 Rb2 (26...f4 27.e4 Rb2 28.Qe1 de4 29.Be4 Ne4 30.de4–/+) 27.Qd1 (better is 27.d4!? Qb8 28.Qd3=) 27...d4–/+ 28.ed4 Qd4 29.Rc2 Rc2 30.Qc2 Qa1 31.Bd1 Qd4 32.g3 Nd5 33.Bf3 Nb4–+ 34.Qc4 Nd3 35.Qd4 cd4 36.Kf1 f6 37.Ke2 Ne5 38.Bd5 Kf8 39.Kd2 Ke7 40.f4 Kd6 41.Ba8 Nc4 42.Kd3 Kc5 43.Bb7 g5 44.Ba6 Nd6 45.Kd2 Kb4 46.Bd3 Kc5 47.Kc2?? Ne4 48.Ba6 h5 49.Bc8 Nd6 50.Bf5?? Nf5 51.fg5 fg5 52.Kd3 Kd5 53.Kd2 Ke4 54.Ke2 d3 55.Kd2 g4 (55...g4 56.Kc3 Ke3–+) 0–1. Fournier,Frederic – Amangeldy1 (1620), rated blitz game (3/3), 2002.

8.d4 0-0 9.Ne5 Ne5 10.de5 Nd7 11.f4 (11.Bd3 Bd3 12.Qd3 a5–/+) 11...Be4 12.Nd2 Bh4 13.Ke2 Bg6 14.g4 b6 15.Nf3 (15.cb6!? ab6 16.Bg2–/+) 15...bc5–+ 16.g5 Bh5 17.bc5 (17.Qc2 Qb6–+) 17...Qa5 18.Qd3?? (18.Bd4 Nc5 19.Bc5 Qc5 20.Bg2–+) 18...Rab8 (better 18...Nc5!? 19.Qc3 Qa6 20.Kd2 Ne4 21.Kc2 Qa4 22.Qb3 Qb3 23.Kb3 Bf3 24.Rg1–+) 19.Bc3 Qa4 (19...Nc5?! 20.Ba5 Nd3 21.Bg2–/+) 20.Bg2 (20.Qd1 Bf3 21.Kf3 Qe4 22.Kg4 Qh1 23.Qd2 Bg5 24.Bd3 h5 25.Kg3 h4 26.Kg4 Qa1 27.Ba1–+) 20...Nc5 21.Qd4 (21.Qd2 Qc4 22.Kd1–+) 21...Qc2 (better 21...Qa6 22.Kd1 Nb3–+) 22.Qd2 Qe4 23.Qd4 Nb3 24.Qe4 de4 25.Rab1 c5 26.Rhd1 (26.Rbd1 Rfd8–+ (worse 26...Bf3 27.Bf3 ef3 28.Kf3–+)) 26...Rfc8 (26...Bf3?! 27.Bf3 ef3 28.Kf3–+) 27.a4 a5 28.Rb2 Nc1 (28...c4 29.Rc2–+) 29.Kf1?? (better 29.Rc1 Rb2 30.Bb2=) 29...ef3 (better 29...Rb2!? 30.Bb2 ef3 31.Rc1–+) 30.Bf3 (30.Rb8 Rb8 31.Rc1 Bg4–+) 30…Bf3 (30...Bf3 31.Rb8 Rb8 32.Rc1 Be4–+) 0–1. Hristov,Boris (1640) – Georgiev,Konstantin (1945), 9th International Open Chess Festival V, 2015. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 e6 4.a3 Nf6 5.e3 Nbd7 6.c4 c6 7.c5 Be7)

8.Nd4 Be4 9.d3 =.

8.Be2 0-0 9.0-0 Qc7 10.Nc3=.

8.Be2 0-0 9.0-0 Qc7 10.Nh4 Bb1 11.Qb1 Rfe8 (11...b6 12.d4=) 12.f4 (12.Nf3 b6 13.d4 a5=) 12...Bf8 (12...b6 13.cb6 ab6 14.Nf3=) 13.Nf3+= g6 (13...b6 14.cb6 ab6 15.Qc2=) 14.Ne5 (14.Qc2 Bg7+=) 14...Bg7 (14...b6 15.cb6 ab6 16.Rc1+=) 15.Bd4 (15.Qc2 Rf8+=) 15...b6 (15...Ne4 16.Qb2 f6 17.Nd7 Qd7 18.Qc2+=) 16.Qc2 Rec8 (16...bc5 17.bc5 Reb8 18.Rac1+=) 17.Ba6+/– Re8 (17...Rf8 18.cb6 ab6 19.Nc6+/–) 18.cb6 ab6 19.Nc6 Nb8 (19...Nc5 20.bc5 Qc6 21.Qd3 bc5 22.Bb5+=) 20.Bb5+– (20...Ne4 21.Bg7 Kg7 22.Qb2 Kg8 23.Rac1+–) 1–0. Becker,Godelind – Mueller,Richard, desc–online.de, 2006.

8.Be2 0-0 9.0-0 Ne8 10.d4 Qc7 11.Nbd2 g5 (11...h6 12.Qb3=) 12.Nb3 f6 (12...h6 13.Ne5+=) 13.Bd3 Bg6 14.Qc2 Kf7 (14...Bd3 15.Qd3 g4 16.Nfd2=) 15.Bg6 (15.h3 Ng7+–) 15...hg6+= 16.e4 g4 17.Nfd2 Rh8 18.f4 (18.g3 Rh3+=) 18...de4 (18...f5!? 19.e5 Ng7=) 19.Qe4+– Ng7 20.Rae1 (20.Qe2 g3 21.hg3 Rh5+–) 20...Rh6+= 21.g3 Rah8 22.Rf2 Nf8 (22...f5!? 23.Qe2 Nf6+=) 23.Qe2+– f5 24.Nc4 g5 25.Bc1 (25.Ne5 Kg8 26.Bc1 Nh5 27.fg5 Ng3+–) 25...Rh5? (better 25...Ng6 26.Ne5 Ne5 27.de5 gf4 28.Bf4 Rg6+=) 26.Ne5+– Kg8 27.Be3 (27.b5!? Bf6 28.bc6 bc6 29.fg5 Be5 30.de5 Kh7+–) 27...Ne8 28.Ref1 (28.fg5!? Bg5 29.Bg5 Rg5 30.b5 cb5 31.Qb5+–) 28...Nf6+= 29.Nd2 Nd5 (29...gf4 30.Bf4 Qd8 31.Qd3+=) 30.fg5 Ne3 31.Qe3 Bg5 32.Qe2 (32.Qd3 Bd2 33.Rd2 Kg7+–) 32...Qd8+= 33.Qd3 Bf6 34.Ndc4 (34.Ng4 Bg7 35.Ne3 Qd4+=) 34...Nh7 35.Nd6 (35.Ng4 Bd4 36.Nge3 Ng5+=) 35...Be5= 36.de5 Ng5 37.Rd2 R8h7 (37...Qc7 38.Qb3 Kg7 39.h4+=) 38.Re2 (better 38.Ne4! Qd3 A) 39.Rd3?? Ne4 (39...fe4?! 40.Rd8 Kg7 41.Rd7 Kg8 42.Rd8 Kg7 43.Rd7 Kg8 44.Rd8=) 40.Rd8 Kf7 41.Rd7 Ke8 42.Rh7 Rh7–+; B) 39.Nf6 Kf7 40.Rd3 Rh2 41.Rd7 Kf8 42.Nh7 Rh7 43.Rh7 Nh7 44.Kf2+–) 38...Rg7 39.Kg2 Rg6 (better 39...Nf3 40.Rh1 Rh6=) 40.Qc2?? (40.Rd1!?=) 40...Nf3=+ 41.Rf3?? (41.h4 gh3 42.Kf3–+) 41...gf3–+ 42.Kf3 Qg5 43.Qd2 (43.Rg2 Rh2 44.Qd3 Qh5 45.Kf2–+) 43...Qg4 44.Ke3 Rh2!! 45.Rh2 (45.Rh2 Qg3 Double attack (45...Qg5 Deflection)) 45...Qg3 46.Ke2 Qh2 47.Kd3 Rg3 48.Kc4 Qd2 (48...Qd2 49.Nf5 Rc3) 0–1. Polischuk,Vyacheslav (1875) – Gedgafov,Chamal, Nalchik Russia, SKFO Championship, 2013.

8.Be2 0-0 9.0-0 h6 10.Ne5 Ne5 11.Be5 Nd7 12.f4 (12.Bg3 Re8=) 12...b6+= 13.d4 f6 (worse is 13...Ne5 14.fe5 Bg5 15.Qd2=) 14.Bd6 Bd6 15.cd6 Qb8 16.Nd2 Qd6 17.Rf3 (17.Ba6 Rab8 18.Qe2 e5–/+) 17...e5 (better is 17...a5 18.Rc1 ab4 19.ab4 Rfc8–+) 18.e4? (better is 18.de5 fe5 19.Nc4–+) 18...de4–+ 19.Bc4 Kh8 20.Rh3 (20.Ne4 Be4 21.de5 Qd1 22.Rd1 Bf3 23.gf3–+) 20...Qd4 21.Kh1 Bh3 22.gh3 e3 (22...Rad8!? 23.Qc1 ef4 24.Nb3–+) 23.Nf3 Qc4 24.Qd7 Rad8 25.Qf5 Qf4 26.Qg4 Qg4 27.hg4 e2 (27...e2 28.Re1 Rd1–+) 0–1. Puru,B – Chan Peng Kong, Asia–chT fin, 1977. (=1.a3 d5 2.b4 c6 3.Bb2 Nf6 4.e3 Bf5 5.c4 e6 6.Nf3 Nbd7 7.c5 Be7)

8.Be2 0-0 9.Nh4 Bb1 10.Rb1 Qc7 11.Nf3 Rfe8 12.0-0 e5 13.g3 (13.d4 e4 14.Nd2 Rab8=) 13...Bf8 (13...b6 14.d4 e4 15.Nd2=+) 14.Qc2 e4 (14...a5 15.Ra1=) 15.Nd4 Ne5 16.f3 Qd7 17.Kg2 Rac8 (better is 17...b6=) 18.d3 (better is 18.fe4!? Ne4 19.d3+=) 18...ef3=+ 19.Nf3 (19.Bf3 Neg4 20.Bg4 Ng4–/+ (< 20...Qg4 21.h3 Qg5 22.Rbe1+=)) 19...Neg4–/+ 20.Bd4 Ne3 21.Be3 Re3 22.Qd2 (22.d4 Qg4 23.Rb3 Re7=+) 22...d4 23.Rbc1 b5 (23...Rce8 24.Rfe1–+) 24.Qb2 Rd8 25.Kf2 (25.Rce1 Be7–/+) 25...Ng4 (25...Qh3 26.Kg1–+) 26.Kg2 Ree8 27.Rfe1 Ne3 28.Kf2 g6 29.Qd2?? (better is 29.Kg1–+) 29...Bh6 30.Kg1 Qh3 31.Bd1 (31.Nh4 Nf5 32.Bf1 Bd2 33.Bh3 Be1 34.Bf5 gf5 35.Nf5–+) 31...Ng4 32.Re8 Re8 33.Qc2 (33.Qg2 Qg2 34.Kg2 Bc1 35.Nd4 Ne3 36.Kg1 Nd1 37.Nc6–+) 33...Be3 (34.Qf2 Bf2 35.Kh1 Re1 36.Ne1 Qh2) 0–1. Flazinski,Pawel – Bienkowski,Gabriel (2050), Kartuzy, 2002.

8.Be2 b6 9.Qa4 =+.

8.Be2 Qc7 9.0-0 Ng4 (9...e5 10.Nh4 Be6 11.f4=) 10.g3 (10.Bg7 Rg8 11.Bb2 e5+=) 10...Bf6 (10...Ngf6 11.Kg2+=) 11.Nd4 (11.Bf6 Ngf6 12.d4 0-0=) 11...Nh6 12.Nf5 Bb2 13.Ra2 Ba3?? (better is 13...Nf5 14.Rb2 Nf6=) 14.Nd6+– Ke7 15.Ra3 Nf5 (15...a5 16.Qb3+–) 16.Nf5 ef5 17.d4 a6 (17...Nf6 18.b5+–) 18.Bf3 (18.Nd2 Nf6+–) 18...g5 (18...Nf6 19.Bg2+–) 19.Bg2 (19.Qc2 Kf6+–) 19...Rag8 (19...h5 20.Nd2+–) 20.Re1 (20.Nd2 Nf6+–) 20...Nf6 (20...Kd8 21.Qc2 f4 22.Qf5+–) 21.Nd2 (21.Qc2 Ne4 22.f3 Ng3 23.hg3 Qg3+–) 21...Kd8 (21...h5 22.Qc2 Ne4 23.Ne4 fe4 24.f3+–) 22.Qc2 (22.Qf3 Ne4 23.Ra2 Qd7+–) 22...f4 (22...Ne4 23.Nf1 g4 24.Rb1+–) 23.ef4 gf4 24.Qf5 (24.Rf3 Re8 25.Re8 Re8 26.Rf4 Re1 27.Bf1 Qe7+–) 24...Rg6 25.Qe5 (25.Nf3!? fg3 26.fg3 Re8+–) 25...Qe5 26.Re5 Ng4 (26...fg3 27.fg3 Rhg8 28.Rf5+–) 27.Rf5 (27.Re1 Re8 28.Re8 Ke8+–) 27...fg3 28.fg3 Rf6 29.Rf6 (29.Rff3 Rf3 30.Rf3 Ke7+–) 29...Nf6 30.Rf3 Ke7 31.Re3 Kd7 (31...Kd8 32.Bh3+–) 32.Bh3 Kd8 33.Nb3 (33.Nf3 Rf8+–) 33...Re8 34.Re8 (34.Rf3 Ke7+–) 34...Ne8 35.Kf2 Kc7 (35...h6 36.Ke3+–) 36.Kf3 f6 (36...h6 37.Kf4+–) 37.Bf5 h6 38.Bd3 (38.g4 Kd8+–) 38...Ng7 39.Kf4 (39.g4 Kd7+–) 39...Kb8 (39...Kd8 40.g4+–) 40.Nd2 Ka7 41.Nf3 (41.g4 Kb8+–) 41...b6 42.Nh4 Ne6 (42...a5 43.cb6 Kb6 44.ba5 Ka5 45.Nf5 Nf5 46.Kf5+–) 43.Ke3 bc5 44.bc5 a5 (44...Ng7 45.Ng6+–) 45.Nf5 a4 (45...Ng5 46.h4 Nf7 47.Be2+–) 46.Nh6 (46.Kd2 Ng5+–) 46...a3 47.Bb1 Ka6 (47...Ng5 48.Nf5+–) 48.Nf5 (48.h4 Kb7+–) 48...Ka5 (48...Kb5 49.h4 Kc4 50.Ba2 Kc3 51.h5+–) 49.Kd3 (49.Ne7 Kb4 50.Ba2 Nd8+–) 49...Kb4 50.Ba2 Nc7 (50...Ng5 51.Ne7 Kb5 52.h4+–) 51.h4 Nb5 (51...Ne6 52.h5+–) 52.Ne7 Nc3 (52...Nc7 53.h5 Ne6 54.Nc6 Kb5+–) 53.Nc6 1–0. Helmke,L – Day,Ted, Washington Open, 1992.

8.Be2 h6 9.0-0 (9.Nd4 Be4 10.0-0 e5=) 9...Qc7 (9...0-0 10.d3=) 10.Nd4+= Bh7 11.f4 (11.Nc3 e5 12.Nf3 0-0-0=) 11...0-0 (11...0-0-0 12.Qa4 Kb8 13.Nc3=) 12.Nc3 a5 (12...b6 13.cb6 ab6 14.Rc1=) 13.Na4 (13.d3 ab4 14.ab4 Ra1 15.Qa1 b6=) 13...ab4= 14.ab4 b5 15.Nc3 Ne4 16.Ne4 (16.d3 Nc3 17.Bc3 Ra1 18.Qa1 Bf6+=) 16...de4 (16...Ra1 17.Qa1 Be4 18.d3+=) 17.d3 Nf6 (17...Bf6 18.Qc2=) 18.de4 (18.Qc2 ed3 19.Bd3 Bd3 20.Qd3 Nd5=) 18...Be4 (18...Ra1 19.Qa1 Be4 20.f5=) 19.Bf3 (19.Bd3 Ra1 20.Ba1 Bd3 21.Qd3 Rd8=) 19…Ra1 ½–½. Boehnke,Hartmut (2005) – Woelk,Ralf (2305), EM/M/179 ICCF Email, 2002.

7.d3 a5=+

8.c5 b6 9.cb6 (9.Nd4 ab4 10.ab4 Ra1 11.Ba1 bc5 12.Nf5 ef5 13.bc5 Bc5–/+) 9...Qb6 10.Bd4 c5 (10...Qc7!? 11.ba5 Bd6=+) 11.bc5= Bc5 12.Nc3 Bd4 13.Nd4 Bg6 14.Na4 (14.Rb1 Qa6=) 14...Qa6 15.Rc1 0-0 (15...Rc8 16.Rc8 Qc8 17.Qd2=) 16.Nc6 Kh8 17.d4 (17.Be2 Qb7=) 17...Qb7 18.Be2 Rfc8 19.Ne7 Rc1 20.Qc1 (20.Ng6 hg6 21.Qc1 Rc8=) 20...Qb3 (20...Bh5 21.Bh5 Nh5 22.0-0=) 21.Ng6 hg6 22.Bd1 Qb5 (22...Qd3 23.Qc3 Qc3 24.Nc3=) 23.Nc3 Qc6 (23...Qb6 24.h4=) 24.Ba4 Qc7 25.0-0 (25.Bd7 Nd7 26.Qd2 Rc8=) 25...Rc8 26.Ne2 Nb6 27.Qc7 Rc7=+ 28.Bb5 Ne4 29.f3 Nc3=+ 30.Nc3 Rc3 31.Be8 Kg8 32.Rb1 Nc4 33.e4 Kf8 34.Rb8 de4 35.fe4 Na3 36.d5 ed5 37.ed5 Ke7–/+ 38.Bc6 Nc4 39.Rb7 Kf6 40.Ra7 Ne5 41.Ra5= Nc6 42.Ra6=+ Ke7 43.dc6 g5 44.h3 g6 45.Ra7 Ke6 46.Rc7 f5 47.Rc8 Ke5 48.c7 Kf4 49.Kh2 Rc2=+ 50.Rg8 Rc7 51.Rg6 Rc2 52.Ra6 ½–½. Wolf,Heinz – Grabowietzki,Helmut, Verbandsliga Nord Baden, 1997.

8.cd5 cd5 9.ba5 Qa5 10.Bc3 =.

8.cd5 cd5 9.Nd4 =+.

7.d3 Bd6

8.c5 Bc7 9.d4 0-0+= 10.Be2 Re8 (10...Ne4 11.0-0+=) 11.Ne5 (11.Nc3!?+=) 11...Ne5–/+ 12.de5 Nd7 13.f4 Qh4 14.g3 Qe7 (14...Qh6 15.0-0–/+) 15.0-0+= h6 16.Nd2 a5 (16...b6 17.b5 cb5=) 17.Bg4 (17.Nf3 Be4=) 17...Bd3 (17...Bg4!? 18.Qg4 ab4 19.ab4 b6–/+) 18.Re1+= Bh7 (18...b6!? 19.Nb3 Bb5+=) 19.e4= Rad8 (19...Bg6 20.ed5 cd5 21.Nb3+=) 20.ed5+= cd5 21.Bd4 Nb8 22.b5 Rc8 (22...Nd7 23.Rc1 b6 24.c6+/–) 23.Qa4 Nd7 24.Rac1 b6 25.c6 (25.cb6 Nb6 26.Qb3+/– (worse is 26.Qa5 Nc4 27.Qa6 Nd2–/+)) 25...Nc5= 26.Bc5 bc5 27.Qd1 (27.Bd1!?=) 27...c4 28.a4 Bb6 29.Kg2 Qb4 30.Be2? (better is 30.Nb1–/+) 30...Be3–+ 31.Nc4 (31.Nf3 Bc1 32.Qc1 Qa4 33.Nd4–+) 31...dc4?? (better is 31...Bc1 32.Nd6 Bd2–+) 32.Rc4–/+ Qb2 33.Kh3? (33.c7 Bf5–/+) 33...Bb6 (better is 33...Bf2!? 34.c7 Be1 35.Qe1 Re7–+) 34.Bd3 Bd3 35.Qd3 Red8 36.Qc2 Qa3 (36...Qc2 37.Rc2 Rd4 38.Ra1–/+) 37.Rd1 Qf3 38.Rd8 Rd8 39.c7 Rc8 40.Rc6 Qf1 (better is 40...Bg1–/+) 41.Kh4?? g5! 42.fg5?? hg5–+ 43.Kg5 Be3 44.Kg4 Kh8 45.Kh4 Kg7 46.Kg4 Kh8 ½–½. Bartle,Georg (1675) – Wegmann,Bernard, 2rd Berlin Germany, Senior Championship, 2010.

8.Nbd2 0-0 9.Be2 a5 10.b5 (10.c5 Be7=) 10...cb5 11.cb5 (11.cd5 b4= (worse is 11...Nd5 12.e4+/–)) 11...Nc5+= Black intends a4 12.Nb3 Nb3 13.Qb3 a4 14.Qd1 Qa5 15.Qd2 Rfc8 16.Bf6 gf6 17.Nd4 Bg6 18.h4 (18.Qa5!? Ra5 19.Kd2–/+) 18...e5 19.h5 ed4 20.hg6 fg6 21.ed4 Qb5 22.Bg4 (22.0-0!?–/+) 22...Re8–+ 23.Kf1 Re7 24.g3 Rae8 (24...Kh8 25.Ra2–+) 25.Kg2 (25.Bf3 Kh8–/+) 25...Qb6–+ 26.Rh4 (26.Rab1 Qd4 27.Rh4–+) 26...g5 27.Rh6? (27.Rhh1–+) 27...Qd4 28.Rah1 (28.Qa2 Qg4 29.Qd5 Qe6 30.Qb5–+) 28...Qg4 29.Qc3 (29.Qa2 Qf5 30.Qa1 Qd3–+) 29...Be5 (better is 29...Bg3 30.Qb4 Bf4 31.Kf1 Qe2 32.Kg2 Re3 33.Qd2 Rg3 34.Kh2 Qf3 35.Rg6 hg6 36.fg3 Qg3) 30.Qc5 Qd7 31.d4 Bd6 32.Qd5 Qe6 33.Qb5 Qe4 34.Kg1 Qf3 35.Qc4 Rf7 36.Qc1 Ba3 37.Qb1 Re2 38.R1h2 Rfe7 39.Rg6 Kh8 40.Rh7 Rh7 41.Rg8 Kg8 42.Qg6 Kf8 0–1. Zhao,Parker Bi Guang – Song,Raymond (1985), Wch U10 Chalkidiki, 2003. (=1.Nf3 Nf6 2.b4 c6 3.e3 d5 4.Bb2 Bf5 5.c4 e6 6.a3 Nbd7 7.d3 Bd6)

8.Nbd2 Qe7 9.Be2 (9.e4 de4 10.de4 Ne4 11.Ne4 Be4+=) 9...e5 10.cd5 (10.0-0 0-0=) 10...cd5+= (worse is 10...Nd5 11.e4 Nf4 12.ef5 Ng2 13.Kf1+–) 11.0-0 0-0 12.Nb3 (12.Nh4 Be6=) 12...Rac8 13.Rc1 (13.Na5 Nb6+=) 13...b6 (13...Rfe8 14.d4+=) 14.Qd2= Bb8 (14...Rfe8 15.Rc8 Rc8 16.Rc1 Rc1 17.Qc1=) 15.Rc8 Rc8 16.Rc1 Rd8 (16...Rc1 17.Qc1 Bd6 18.Qc6=) 17.Rc6 (17.Qc3 Bg4=) 17...Nf8 (17...Bd6 18.Nh4 Be6 19.f4=) 18.g3 (18.d4 e4 19.Ne1 Rc8 20.Rc8 Bc8+=) 18...Bd7 (18...Ng6 19.Rc1+=) 19.Rc1 Ng6 20.d4 (20.Bf1 Qe6+=) 20...e4 21.Ne1 Ng4 (21...Rc8 22.Rc8 Bc8 23.Qc3=) 22.Ng2 (22.Nc2 Bd6+=) 22...Qg5 23.Qd1 h5 (23...Qh5 24.h4+=) 24.h4 (24.b5 h4 25.Rc3 hg3 26.fg3 Nh2–+) 24...Qf6+= 25.Qe1 Ne7 (25...Rc8 26.Rc8 Bc8 27.Nd2+=) 26.Nd2 (26.b5 Rc8+=) 26...Nf5 (26...Rc8 27.Rc8 Bc8 28.b5+=) 27.Nf1 (27.Ba6 Bd6+=) 27...g5 (27...Rc8 28.Rc8 Bc8 29.Qc3+=) 28.Bg4 (28.hg5 Qg5 29.Nf4 Nf6=) 28...hg4+= 29.Qe2 (29.hg5 Qg5 30.Nf4 Kg7 31.Nd5 Rh8–/+) 29...Nh6 (29...gh4!? 30.Qg4 Kf8 31.gh4 Ne3–/+) 30.hg5 (30.h5 Kg7+=) 30...Qg5 31.Nf4 (31.Nd2 Kg7+=) 31...Kg7 32.Nh2 (32.b5 Rh8 33.Nh2 Bf4 34.ef4 Qh5–+) 32...Rh8 33.Qf1 (33.Kg2 Ng8+=) 33...f6 (33...Nf5 34.Rc3–/+) 34.Qg2 Nf7 35.Qh1 (35.Nf1!?–/+) 35...Qh6 36.Ng2 (36.Nd5 Ng5 37.Nc7 Nf3 38.Kf1 Qg5–+) 36...Ng5 37.Nh4 Nf3 (37...Nf3 38.N2f3 gf3–/+) 0–1. Opocensky,Karel – Richter,Emil, Kautsky mem, 1929.

8.Be2 e5 9.0-0 =.

8.Be2= e5 9.Nbd2 0-0 10.0-0 Qe7 11.Re1 (11.c5 Bc7=) 11...Rae8 (11...Rfd8 12.c5 Bc7 13.Qc2=) 12.Nf1 (12.c5 Bc7=) 12...e4 (12...dc4 13.dc4 c5 14.Ng3=) 13.de4 Ne4 (13...Be4!? 14.c5 Bc7=) 14.cd5+= cd5 (14...c5!?+=) 15.Qd5+/– Bg4 (15...Ne5 16.Ne5 Be5 17.Be5 Qe5 18.Qb7+/–) 16.Qb7+– Rc8 (16...Ndf6 17.Qe7 Re7 18.Red1+–) 17.Rac1 (better is 17.Qa7 Rfd8 18.Rec1+–) 17...Ne5?? (better is 17...Ra8+–) 18.Qe4 (18.Qe7 Be7 19.Be5 Bf6+–) 18...f5 (18...Bf3 19.Bf3 Nf3 20.Qf3+–) 19.Qd5 (19.Ne5?! fe4 20.Ng4 h5=) 19…Kh8 (19...Nf7+–) 1–0. uno (1930) – Xan_X (1980), ICC, 2003.

8.Be2 Qe7 9.c5 Bc7 10.0-0 e5 (10...0-0-0 11.d4+=) 11.Nbd2 (11.Nh4 Be6=) 11...0-0 12.Qc2 h6 13.Rfc1 Rfe8 14.a4 Rad8 (14...Bg4 15.h3 Bh5 16.b5=) 15.a5 a6 16.Re1 e4 17.Nd4 (17.de4 de4 18.Nd4 Bg4=) 17...Bg6 18.Rad1 Ne5 19.de4 de4 20.Qb3 Nd5 21.Nc4 Nc4 (21...Nd3 22.Bd3 ed3 23.e4=) 22.Bc4 Bh5 23.Ne2 (23.Rb1 Qh4 24.h3 Qg5=+) 23...Qh4 (23...Qg5 24.Bd5 Rd5 25.Rd5 Qd5 26.Qd5 cd5 27.Nd4=) 24.h3 Re6 (25.Bd5 cd5 26.Rd5 Rd5 27.Qd5 Rg6–+; 24...Qg5!?=). Boehnke,Hartmut (2030) – Roewekamp,Kai (2025), 2002.

7.d3 Be7

8.Nbd2 Rc8 9.Be2 a6 (9...dc4 10.dc4 a5 11.Qb3=) 10.0-0 (10.Nh4 Bg6+=) 10...0-0 (10...c5 11.e4 de4 12.de4 Ne4 13.Ne4 Be4 14.Bg7=) 11.Nb3 (11.Nh4 Bg6+=) 11...Qc7 (11...dc4 12.dc4 c5 13.bc5 Nc5 14.Nc5 Bc5 15.Qb3=) 12.Rc1 (12.cd5 cd5 (12...Nd5? 13.e4+–) 13.Nh4 Bg6+=) 12...Qb8 (12...dc4 13.Rc4 e5 14.Nc5=) 13.Qd2 (13.Nbd4 Bg4+=) 13...Rfd8 (13...e5 14.c5=) 14.h3 (14.Nbd4!?+=) 14...dc4 15.Rc4 Nb6 (15...e5 16.Rc3=) 16.Rd4 (16.Rcc1 Qc7+=) 16...Na4 (16...Re8 17.Nc5=) 17.Rd8+= Rd8 18.Be5 Qc8 (18...Bd6 19.Bf6 gf6 20.Rc1+=) 19.Nfd4 (19.Nbd4!?+/–) 19...Bg6= 20.Rc1 Nd7 21.Bg3 Qa8 (21...e5 22.Nf3 Qc7 23.d4+=) 22.Bf3 c5 23.Ne2 Rc8 (23...Qa7 24.Na5 Ndb6 A) 25.Nb7?! Rd3 26.Qe1 Nd5 27.Nc5 Nc5 (< 27...Bc5 28.bc5 Ra3 29.e4+–) 28.bc5 Bc5+=; B) < 25.Bb7 Rd3 (25...Bd3? 26.Nc6 Qb7 27.Nd8+–) 26.Qe1 Ra3=+; C) 25.Nf4+/–) 24.Na5 (better is 24.d4 cb4 25.ab4 Rc1 26.Qc1 Bb4 27.Qc7+=) 24...Qa7? (better is 24...cb4 25.ab4 Rc1 26.Nc1 Qf8+=) 25.Bb7 Re8 (25...Rd8+–) 26.Bc6 cb4 (26...Nab6 27.bc5 Nd5+–) 27.Ba4 Nc5 (27...e5 28.Be5! Ne5 29.Be8 Qb6+–) 28.Be8 1–0. Scholz,Christoph – Warthmann,Stefan, Baden–ch U15, 1996.

8.cd5 cd5 9.Be2 a5 =.

8.cd5 ed5 9.Be2 0-0 =.

8.Be2 0-0 9.0-0 a5 10.b5 (10.c5 b6 11.Nd4 bc5 12.Nc6 Qe8+/–) 10...Qb6 (10...dc4 11.dc4 cb5 12.cb5=) 11.a4 (11.Nd4 cb5 12.Nf5 ef5=) 11...Rfe8 (11...dc4 12.dc4 cb5=) 12.Nh4= Bg6 13.Ng6 hg6 14.Nd2 dc4 (14...cb5 15.ab5 dc4 16.dc4+=) 15.Nc4+/– Qc7 16.bc6 Qc6 (16...bc6 17.Rb1+/–) 17.Bf3 Qc7 18.Rb1 Rab8 19.Na3 (19.Bc3 b6+/–) 19...Nd5 (19...Bd6!? 20.h3 Bh2 21.Kh1 Be5+/–) 20.Nb5+/– Qd8 21.Qe2 Nc5 22.Be5 Rc8 23.Ra1 (23.Na7 Ra8 24.e4 Ra7 25.ed5 ed5=) 23...Qd7 (23...Bf6 24.Bd4+=) 24.d4+/– Na6 25.Rfc1 Bb4 (25...f6 26.Bg3+/–) 26.Be4 Red8 27.Bd5 (27.Rab1 Nf6 28.Bf3 Nd5+/–) 27...Qd5 28.e4 Qd7 (28...Qb3 29.Rc8 Rc8 30.Nd6 Bd6 31.Bd6=) 29.Rd1 (29.Rab1 Be7+/–) 29...Qe7 (29...f6 30.Bf4+=) 30.Rd3 Nb8 31.Rad1 Nc6 32.Bf4 e5 33.de5 Rd3 34.Rd3 Ne5 35.Rd5 Nc6 (35...Qf6 36.Qe3 (< 36.Re5 Qf4 37.Rd5 Rc1 38.Rd1 Qe4–/+; 36.Be5?! Rc1 37.Rd1 Rd1 38.Qd1 Qe5+=) 36...Nc4 37.Qc1–+) 36.g3 (36.Qg4 f5 37.Qg3 Qe4=+) 36...Rd8 (36...f5 37.f3=) 37.Qe3 Rd5 (37...Rd7 38.Qf3+=) 38.ed5+/– Qe3 39.fe3 Ne7 40.e4 Nc8 41.Bc7 Kf8 42.Kf2 Ke7 43.Ke3 (43.e5 Bc5 44.Kf3 Nb6 45.Bb6 Bb6+/–) 43...Kd7 (43...Bc5 44.Kf4 Nb6 45.Bb6 Bb6 46.e5+/–) 44.e5 Ne7 45.Ke4 Nf5 46.g4 Ne7 47.Bd6 Be1 (47...Nc8 48.Bb4 ab4 49.Nd4+–) 48.Bc5 (48.Be7 Ke7 49.Nd6 Bc3 50.Nb7 Bb4+–) 48...f5 49.Kd4 b6? (better is 49...Bf2 50.Kc4 Bc5 51.Kc5 Nc8+–) 50.e6 Ke8 51.Be7 Ke7 52.gf5 gf5 53.Ke5 (53...f4 54.d6 Kf8 55.Nc7+–) 1–0. TheForce (1955) – Turzo (2350), ICC, 2003.

8.Be2 dc4 9.dc4 a5 =.

8.Nbd2 0-0

9.Be2 a5 10.Qb3 (10.c5 Bg4=) 10...Ne8 (10...dc4 11.dc4 c5 12.b5=) 11.e4 dc4 (11...Bg4 12.0-0=) 12.Nc4 (12.dc4 Bg6+=) 12...a4= 13.Qc3 (13.Qc2 Bg4=) 13...Bf6+= 14.e5 (better is 14.Qc2 Bg4 15.d4+=) 14...Bg5? (14...Be7 15.0-0=) 15.Bc1?? (better is 15.Ng5 Qg5 16.g4 Bg4 17.Rg1+–) 15...Bc1 16.Rc1+= Nb6 17.Ne3 Bg6= 18.0-0 Nc7 19.Rfd1 Nbd5 20.Nd5 Nd5 21.Qc4 Bh5 22.Rc2 Qc7 23.g4 Bg6 24.Rcd2 f6=+ 25.Qd4 Rad8 26.ef6 Nf6 27.Qc4 Nd5–/+ 28.Ng5?? Qe7 29.Nh3 Qd6 30.Bf1 Rd7 31.Re1 Rf6 32.Rde2 Bf7 33.Re5 h6 34.f4 b5 35.Qe4 Nc3 36.Qe3= Rg6 37.g5 Nd5 38.Qf3 Nc3 39.Qe3 (39.Nf2!?+=) ½–½. Lien,G – Dyrner,J, Blindern, 2002.

9.Be2 dc4 10.Nc4 c5 11.bc5 Nc5 12.Nd4 =.

9.Be2 dc4 10.Nc4 Bg4 11.0-0 =.

9.Be2 h6 10.Qb3 (10.0-0 a5=) 10...Qb8 (10...c5 11.0-0=) 11.d4 (11.Qc3 c5=) 11...b5 (11...dc4 12.Nc4 Nb6 13.Nb6 ab6 14.Ne5=) 12.c5 Ne4 (12...a5 13.a4 ba4 14.Ra4 ab4 15.Rb4=) 13.Ne4 Be4 14.0-0 g5 (14...a5!?=) 15.Nd2+/– Bh7 (15...Bf5 16.a4 ba4 17.Qa4+=) 16.a4 a6 (16...ba4 17.Ra4 Qc7 18.Rfa1+/–) 17.ab5 (17.Ra3 Qb7+/–) 17...ab5+= (White creates threats along the open a–file) 18.Ra8 Qa8 19.Ra1 Qb7 20.Qa3 Rb8 (20...Bf6 21.f3+=) 21.Bd1 (21.f3 Nf6+=) 21...Nf8 (21...Bf5 22.Nf1+=) 22.Qa7 Nd7 (22...Bf6 23.Nb3 Ng6 24.Qa5+=) 23.Ra6 Bd8 24.Qb7+– Rb7 25.Rc6 Bd3 26.Ra6 Nb8 27.Ra8 Bc7 28.Nb3 Kg7 29.Bc3 Nc6+/– 30.g3 Ra7 31.Ra7 Na7 32.f3 f5 33.Kf2 Nc6 34.Ke1 Kf7 35.Be2 Be2 36.Ke2 f4 37.Kf2 fe3 38.Ke3 Kf6 39.Nc1 h5 40.f4 Kf5 41.fg5 Kg5 42.Kf3 h4 43.Bd2 Kg6 44.Ne2 hg3 45.hg3 e5 46.de5 Be5 47.Nf4 Bf4 48.gf4 Kf5+/– 49.Ke3 Ke6 ½–½. Bartle,Georg (1720) – Richter,Georg, Oberwinden GER Open, 2007.

9.Nh4 =.

7.d4 a5

8.b5 dc4 9.Bc4 Qb6 10.Nc3 Be7 11.0-0 Nd5 12.Na4 Qc7 13.Rc1 Rc8 14.Qe2 N5f6 15.bc6 bc6 16.Bb5 Qd6 Attacks the isolani on a3 17.Ne5 0-0 (17...Nb8!?+–) 18.Nc6 Bd8 19.f3 Bc7 Threatening mate... how? 20.g3 (20.g4 Bg6 21.Nc5 Kh8+–) 20...Bh3 21.e4 Bf1 22.Kf1 Ne4 23.fe4 e5? (23...Bd8+–) 24.de5 Qe6 25.Na7 (25.Na7 Nb8 26.Kg2+–) 1–0. marekt – mgilbert, net–chess.com, 2020.

8.b5 Bd6 9.Nc3 e5 (9...0-0!?=) 10.cd5 (10.bc6 bc6 11.cd5 Rb8 12.dc6 Rb2 13.cd7 Nd7 14.de5 Bc5+–) 10...cd5+= 11.de5 (11.Nd5 e4 12.Nf6 Nf6+/–) 11...Ne5 (< 11...Be5 12.Ne5 Ne5 13.Nd5 Nd5 14.Be5+/–) 12.Nd5 Nf3? (better is 12...Bg4 13.Nf4 Qe7+=) 13.Qf3+– Nd5 14.Qf5 (14...Nf6 15.Rd1+–) 1–0. Harismuha – SWAT_TEAM, ChessWorld.net, 2004.

8.b5 Be7 =.

8.c5 ab4 9.ab4 Ra1 10.Ba1 Qa8 11.Nbd2 Qa2 12.Be2 Be7 13.0-0 0-0 14.Bc3 Ra8 15.Qa1 Bd8 16.h3 Kf8 17.Rc1 Bc7 18.Kf1 Qa1 19.Ra1 Ra1 20.Ba1 Be4 21.Ne1 e5 22.Bc3 g5 23.Nef3 Bf3= 24.Nf3 Ne4 25.Be1 h6 26.h4 f6 27.hg5 hg5 28.Bd3 Ke7 29.Ng1 ed4 30.ed4 g4 31.Ne2 Ke6 32.f3 gf3 33.gf3 Ng5 34.Kg2 b6 35.Ng3 bc5 36.Bf5 Ke7 37.bc5 Ne6 38.Be6 Ke6= 39.Bd2 Nf8 40.f4 f5 41.Nh1 Bd8 42.Nf2 Bf6 43.Be3 Kd7 44.Nd3= Ne6 45.Ne5 Be5 46.fe5 Ke8 47.Kf3 Kf7 48.Bf2 Kg6 49.Be3 Kh5 50.Kg3 f4–+ 51.Bf4 Nd4 52.Bd2 Kg6 53.Kg4–/+ Nb3 54.Bb4 Kf7 55.Kf5 Nd4 56.Kf4 Ke6 57.Ba5 Nb3 58.Bb6 Nd2 59.Bc7 Nc4 60.Bd6 Nb2 61.Ke3 Kf5 62.Kd4 Nc4 63.Bc7 Nd2 64.Ke3 Ne4 65.Kd4 Ng5 66.Ke3 Ne6 67.Bd6=+ Kg5 68.Kf3 Kf5 69.Ke3= Kg4 70.Be7 Ng7 71.Bf8 Ne6 72.Be7 Kf5 73.Bd6 Nf4 74.Kd4 Ng6 75.Bc7 Kf4 76.Bd6 Kg5 77.Bc7 Kf5 78.Bd6 Nf4 79.Ke3 Ne6 80.Kf3 d4 81.Ke2 Ke4 82.Kd2 Kd5 83.Kd3? Nf4 84.Kd2 Ng6 85.Kd3 Ne5 86.Kd2 Nd7 87.Be7 Nc5 88.Bf8 Ne4 89.Kc2 c5 90.Bg7 c4 91.Bh6 d3 92.Kd1 c3 93.Kc1 Kc4 94.Be3 Kb3 95.Kd1 c2 96.Kc1 d2! 97.Bd2 Nd2 98.Kd2 Kb2 0–1. Keustermans,H – Van Herck,M, Antwerpen, 2000.

7.d4 dc4

8.Bc4 a5 9.ba5 Ra5 10.Nbd2 Qa8 11.0-0 Ba3 12.Bc3 Ra7 13.Nh4 (13.Qb3 b5 14.Be2 0-0=+) 13...Bg6 (better 13...b5!?–+) 14.Ng6 hg6 15.Qb3 0-0 (15...Nd5!?=+) 16.Ra2= b5 (16...Be7 17.Rfa1 Ra2 18.Ra2= (worse 18.Qa2 Qa2 19.Ra2 b5=+)) 17.Rfa1 (17.Be6!? Bd6 18.Ra7 Qa7 19.Ra1+=) 17...bc4= 18.Nc4 Rb8 (18...Bc5 19.dc5 Ra2 20.Ra2 Nc5 21.Qc2=) 19.Qc2 Bf8?? (better 19...c5=) 20.Ra7+– Qa7 21.Ra7 Rc8 (21...c5 22.e4 cd4 23.Bd4+–) 22.e4 Nb8 23.Qb3 (23.Qb3 Re8 24.Qb7+–) 1–0. Janek – Usfwjaf, internet, 2019.

8.Bc4 Nd5 9.Nbd2 N7f6 10.0-0 h6 11.Re1 Ne4 (11...Nb6 12.Bb3+=) 12.Rc1 (12.Ne4 Be4 13.Nd2 Bg6+=) 12...Bd6 13.Qb3 (13.Ne4 Be4 14.Nd2 Bg6+=) 13...Ndf6 (better 13...0-0=) 14.Nh4?? (better 14.Ne4 Be4 15.Nd2+=) 14...Nd2–+ 15.Qc3 (15.Qd1 Nc4 16.Nf5 Nb2 17.Nd6 Qd6–+) 15...Nc4 (15...Nfe4 16.Nf5 ef5 17.Qc2 Bh2 18.Kh2 Qh4 19.Kg1 Qf2 20.Kh1 Ng3 21.Kh2 Nf3 22.Kh3 Ne2 23.Qe4 fe4 24.Bf7 Kf7 25.Kg4 Qg2 26.Kh5 Qg6) 16.Qc4 (16.Nf5 Nb2 17.Nd6 Qd6 18.Qb2 0-0–+) 16...Ne4 (better 16...Be4!? 17.f3 Bh7 18.g3–+) 17.Nf5 ef5 18.f3 (18.Qe2 0-0–+) 18...Ng5 (better 18...Qh4 19.fe4 Qh2 20.Kf1–+) 19.h4 (19.f4 Ne4 20.d5 Qh4–+) 19...Nh7 (better 19...Ne6 20.d5 cd5 21.Qb5 Kf8 22.Red1 Qh4 23.f4–+) 20.h5? (20.d5 cd5 21.Qb5 Kf8 22.Qb7–+) 20...0-0 (20...Bg3 21.d5 Be1 22.Re1–+) 21.Kf2 (21.d5 cd5 22.Qd4 Nf6–+) 21...Qg5 Black prepares f4 22.Rg1 Qg3 (22...Rfe8 23.Qb3–+) 23.Ke2 f4 (23...Nf6 24.Rce1–+) 24.e4 White plans d5 24...Ng5 25.Qc3 Rfe8 26.d5 (26.Rce1 Rad8–+) 26...Ne4! 27.fe4 Re4 28.Kd2 (28.Kf1 cd5 29.Qg3 fg3 30.Rh1–+) 28...Qf2 29.Kd1 Qe2 0–1. Dino_Jarach (1840) – LuisQuintana (1870), lichess.org, 2020.

8.Bc4 Be7 9.0-0 0-0 10.Nc3 Bg4 11.e4 e5 12.Be2 ed4 13.Nd4 Be2 14.Qe2 Qc7 15.f4 Nb6 16.Nf5 Rad8 (16...Rfe8 17.Rac1+=) 17.e5 Nfd5 18.Rac1 (18.Qg4 g6+/–) 18...Nc3 19.Qg4 g6 20.Bc3 Nd5 21.Bd4 f6 (21...Rfe8 22.Ne7 (< 22.Ba7 b6–/+) 22...Ne7 23.Rcd1+/– (< 23.Ba7 b6–/+)) 22.e6 b6 23.Nh6 Kg7 24.Nf7 Rc8 (24...Rf7!? 25.ef7 Nb4 26.Bf6 Bf6 27.ab4 Qd6+/–) 25.f5 c5 26.Qh4 g5 (26...Rf7 27.ef7 Qd7 28.bc5 bc5+–) 27.Qg5# 1–0. MT – StormKnight (1690), ICC, 2004.

8.Bc4 Be7 9.Nc3 0-0 10.0-0 Nb6 11.Be2 (11.Bd3 Bd3 12.Qd3 Nbd5=) 11...Nbd5 12.Rc1 a6 13.Na4 (13.Nh4 Nc3 14.Bc3 Be4=) 13...Rc8 (13...a5 14.b5=) 14.Nc5 Qc7 15.Qb3 (15.Bd3 Bd3 16.Qd3 Bc5 17.bc5 Rcd8=) 15...Bg6 (15...Rcd8 16.Ne5=) 16.h3 (16.Ne5 Bd6+=) 16...Ne4 (16...Rcd8 17.Ne5=) 17.Ne4 (17.Bd3 Nc5 18.bc5 Bd3 19.Qd3 b5=) 17...Be4= 18.Ne5 Qd8 (18...Qd6 19.Bd3 Bd3 20.Qd3=) 19.Nd3 Bd3 20.Qd3 Bd6 21.f4 (21.e4 Nf4 22.Qf3 Ne2 23.Qe2 a5=) 21...f5 22.Rce1 Rc7 23.Bc1 Qe7 24.Bd1 Ra8 25.e4 fe4 26.Qe4 a5 27.Qe6 Qe6+= 28.Re6 Bf8 29.ba5 Ra5 30.Rf3 Rd7 31.Rd3 Nc7 32.Bb3 Kh8 33.Re5 Re5 34.fe5+– Nb5 35.Bb2 Bc5+/– 36.e6 Rd8 37.Kh1 Ba3 38.Ba3 Na3 39.e7 Re8 40.Bf7 Re7 41.Ra3 g6 42.Rf3 Rd7 43.Rf4 g5 44.Rf5 Kg7 45.Be6 Rd6 46.d5 Kg6 47.g4 h6 48.Bf7 Kg7 49.dc6 bc6 50.Be8 Re6 51.Bd7 Rd6 52.Bc8 Rd1 53.Kg2 Rc1 54.Rf3 Rc2 55.Kf1 c5 56.Ke1 Rh2 57.Ba6 Rc2 58.Kd1 Ra2 59.Bf1 Rb2 60.Rc3 Rf2 61.Ke1 Ra2 62.Rc5 Ra1 63.Kf2 Ra2 64.Ke3 Ra1 65.Rc7 Kf6 66.Kf2 Ra2 67.Be2 Ra3 68.Bf3 Ra2 69.Kg3 Ra3 70.Rc6 Kg7 71.Rd6 Rc3 72.Kf2 Rc2 73.Be2 Rb2 74.Ke3 Ra2 75.Bd3 Rh2 76.Rg6 Kf7 77.Rh6 Rg2 78.Be4 Rg3 79.Kd4 Ra3 80.h4 gh4 81.Rh4 Kf6 82.Rh5 Ra4 83.Ke3 Ra3 84.Kf4 1–0. Autengruber,Robert – Dreesen,Jan, Erlangen op, 1994.

8.Bc4 Nb6

9.Bb3 a5 10.ba5 Ra5.

9.Bb3 Nbd5 10.Nbd2 Bd6 11.0-0 Bg4 (11...0-0 12.Bc2 Bc2 13.Qc2=) 12.h3 (12.e4 Bf3 13.Qf3 Nf4+/-) 12...Bh5 (12...Bf5 13.Bc2 Bc2 14.Qc2+=) 13.Rc1 (13.e4 Bf3 14.Qf3 Nf4+/-) 13...0-0? (13...a5 14.ba5 Qa5 15.Nc4=) 14.g4 (better 14.e4!?+/-) 14...Bg6= 15.Nc4 (15.Ne5 Be5 16.de5 Nd7=) 15...Re8 (15...Ne4 16.Bc2=) 16.Nfe5 Be5 17.Ne5 Be4 18.Qe2 h6 (18...Nb6 19.f3 Bd5 20.Bd1+=) 19.f3+= Bh7 20.e4 Nf4 21.Qh2 Ng6 22.h4 (22.Bc4 Qb6+=) 22...Ne5 23.de5 (23.Qe5 Nd7 24.Qg3 a5+=) 23...Nd7= 24.Rfd1 Qc7 (24...a5 25.Rc4=) 25.Kg2 1-0. karsan (1715) - iakov (1785), Rated Classical game, lichess.org, 2013. (=1.d4 d5 2.e3 Nf6 3.Nf3 Bf5 4.a3 e6 5.c4 c6 6.b4 Nbd7 7.Bb2)

9.Bb3 Bd6 10.0-0 +=.

9.Bb3 Bd6 10.Nc3= 0-0 11.h3 (11.0-0 Nbd5=) 11...Qe7 (11...a5 12.0-0–/+) 12.Nh4 (12.0-0 Nbd5+=) 12...Ne4 (12...Be4!?+=) 13.Nf5= ef5 14.Qf3 (14.0-0 a5=) 14...Nc3 (14...Bb4 15.ab4 Qb4 16.Qf5 A) worse is 16...Qb3 17.Ne4 (17.Qe4?? Qb2 18.0-0 Qc3–+) 17...Qb2 18.0-0+=; B) 16...Nc3–/+) 15.Bc3= f4? (15...Qe4!?=) 16.e4+/– Qg5 (16...a5 17.ba5 Nd5 18.Bb2 Ra5 19.0-0+/–) 17.Bd2 (17.0-0 Rfd8+/–) 17...Rae8 (17...Rad8 18.Rd1+/–) 18.0-0 Bc7 (18...Rd8 19.Rfd1+/–) 19.Rac1 (19.e5+/–) 19...Qd8? (19...Rd8!? 20.Bc3 Nc8+/–) 20.Bc3 (20.Rfd1 Qe7 21.e5 Rd8 22.Qf4 Nd5+–) 20...Kh8 (better is 20...a6+–) 21.Qh5 (21.b5 cb5 22.e5 Nc4+–) 21...Qd6? (better is 21...Re4 22.Bc2 f5=) 22.Bc2 (22.b5!? Qe7 23.bc6 bc6 24.e5+–) 22...Qg6 ½–½. Chaparro Grande,F – Martin Perez,F J (1760), 2nd Memorial .Piedad Cambeiro Dominguez, 2015

9.Bb3 Be7 10.Nc3 0-0 11.Ne5 Nbd5 12.0-0 Nc3 (12...a5 13.Nd5 cd5 14.b5+=) 13.Bc3= Nd5 14.Bd2 Bd6 15.Re1 Be5 16.de5 Bg6 17.e4 Nb6 18.Be3 Qh4 19.f3 Rfd8 20.Qe2 Qh5 21.Bf4 Nd7 22.Red1 Qh4 (22...Nb6 23.Qe3 h6 24.Rd6+/–) 23.Qe3+/– h6 24.Rd6 Nb6 25.Rad1 Rd6 26.ed6 Nd7 27.Qd2 Bh5 28.Rb1 (28.Be3 Qf6+/–) 28...Qf6 29.Be3 g5 (29...e5 30.Rd1+/–) 30.Rc1 g4 (better is 30...a6!?+/–) 31.fg4+– Bg4 32.Bh6 Kh7 33.Rf1 Qg6 34.Be3 Rg8 (34...Kg7 35.Qc2+–) 35.Bd4 (35.Ba7 Rg7+–) 35...Bh3 36.Rf3 Qg2? (36...Bg4 37.Rf4 Rf8+–) 37.Qg2 Bg2 (37...Rg2 38.Kh1 Rd2 39.Rh3 Kg6 40.Rg3 Kh5+–) 38.Rf7 Kh6 39.Rd7 Be4 40.Kf2 Rg2 41.Ke3 Bf5 (41...Bd5 42.Bd5 cd5 43.Rd8+–) 42.Rb7 Rh2 (42...Rg8+–) 43.d7 1–0. usingprogram – mabnt5, internet, 2011.

9.Bb3 Bg4 10.0-0 Be7 (10...Bd6 11.Nbd2=) 11.Nc3 (11.h3 Bh5=) 11...0-0 (11...a5 12.b5=) 12.h3 Bf3 (12...Bh5 13.g4 Bg6 14.Ne5=) 13.Qf3 Nbd5 (13...a5 14.ba5 Ra5 15.Rfb1=) 14.e4+= Nc3 15.Bc3 Qc7 (15...Qd7 16.Rad1+=) 16.Rfc1 (16.Rac1 Rfd8+=) 16...Rfd8 17.d5 (17.Rd1 Qb6+=) 17...ed5= 18.ed5 Nd5 19.Bd5 Rd5 20.Bg7 Rad8 (20...Qd6 21.Bb2=) 21.Bb2 Rg5 (21...Bg5 22.Rc4+=) 22.Qc3 (22.Re1 Rg6+/–) 22...Rd7?? (better is 22...f6+/–) 23.Qh8# 1–0. Wall,Bill – JWM, internet, 2000.

9.Bd3 Bd3 10.Qd3 Na4 =.

8.Bc4 Bd6

9.0-0 Qc7 10.Nbd2 0-0 11.Rc1 (11.Qe2 Ne4=) 11...Ne4 (11...Nb6 12.Qe2 a5 13.e4 ab4 14.ef5 ba3 15.Bc3 Nc4 16.Nc4 ef5 17.Qc2=) 12.b5 (12.d5 ed5 (< 12...cd5 13.Bd5 ed5 14.Rc7 Bc7 15.Ne4 Be4 16.Ng5+–) 13.Bd5 Nef6=) 12...Nb6 (12...Nd2 13.Qd2 Rfd8 14.Bd3 Bd3 15.Qd3=) 13.bc6 (13.Bb3 Rab8=) 13...bc6 (13...Nd2 14.Qd2 Qc6 15.Bd3=) 14.Ne4 (14...Nc4 15.Nd6 (< 15.Rc4 Be4 16.Rc3 Rab8–/+) 15...Nb2 16.Qd2=). Pachurka,Roland – Viveiros,Fernando, DESC, 2004.

9.Nc3 a6 (9...0-0 10.0-0=) 10.0-0 (10.Bd3 Bd3 11.Qd3 0-0+=) 10...b5 (10...0-0 11.Bd3 Bd3 12.Qd3+=) 11.Bb3+= Rc8 12.Ne2 (12.Qe2 Ne4+–) 12...0-0+= 13.Ng3 Bg6 14.Nh4 (14.Ne5 a5+=) 14...Bg3 15.hg3 Ne4 16.Ng6 fg6? (16...hg6 17.Qd3 Ndf6 18.Rfd1=) 17.Bc2?? (better 17.Qd3 Nef6 18.Be6 Kh8 19.e4+–) 17...Ndf6+= 18.Be4 (18.g4 Qd5+=) 18...Ne4= 19.Qd3 (19.Qc2 Qd5=) 19...Qd5=+ 20.Rac1 Rc7 (20...c5 21.bc5 Rc5 22.Rc5 Nc5 23.Qc2=) 21.Rc2 (better 21.g4+=) 21...Rf5?? (better 21...c5 22.bc5 Rc5=) 22.f3+– Ng3 23.e4 Qd6 24.ef5 Qf4?? (24...Nf1 25.Kf1 gf5+–) 25.Rff2 (better 25.Rfc1 Qf5 26.Qe3 Re7+–) 25…Qh4 (25...Qh4 26.Rfe2! Qh1 27.Kf2 Qh4 28.fe6 Ne2 29.Ke2 Qh5+–). Fettito – WillieC, lichess.org, 2018.

9.Nbd2 0-0 10.0-0 Nb6 11.Be2 h6 12.Rc1 a5 13.b5 cb5 14.Bb5 Qe7 15.a4 Rfc8 16.Qb3 Ne4 17.g3 Nd2 18.Nd2 Bb4 19.Nc4 Nc4 20.Rc4 (worse 20.Bc4 Bd2 21.Ba3 Qc7–/+) 20...Be4 21.f3 Bd5 22.Rc8 Rc8 23.Qd3 Qd8 24.e4 ½–½. Marekt – Bill32606, gameknot.com, 2019.

9.Nbd2 0-0 10.Qe2 Ne4 (10...b5 11.Bb3 a5 12.e4+=) 11.g4 (11.0-0 Qf6=) 11...Nd2=+ 12.Nd2 Bg6 13.h4 h6 14.h5 (14.e4 b5 15.Bb3 a5 16.ba5 Qa5=) 14...Bh7 15.f4 a5 (15...b5 16.Bb3 a5 17.ba5 Ra5 18.g5 hg5 19.h6+=) 16.b5= Nb6 17.bc6 Nc4 (17...bc6!? 18.g5 Na4=) 18.Nc4+= bc6 (18...b5 19.Nd6 Qd6 20.Rg1 (< 20.Qb5 Rab8 21.Qe2 Qc6=) 20...Qc6 21.g5 hg5 22.Rg5 Qh1 23.Kd2+=) 19.Nd6 Qd6 20.Kf2 (better is 20.Rg1!?+=) 20...Be4 (20...Rfb8!?–/+) 21.Rhg1= g5 (21...Ra7 22.g5 hg5 23.Rg5=) 22.hg6+= fg6 23.g5 h5 24.Qc4 Rab8 25.Qc3 Qd5=+ 26.a4 Rb3 27.Qd2 Rfb8 28.Bc3= Qf5 29.Rg3 h4–+ 30.Rgg1 Qh3 31.Rgc1 Qg3 32.Ke2 h3 33.d5 Qg2 34.Ke1 Qd2 35.Kd2 ed5 36.Rh1? Bh1 37.Rh1 h2 38.Kd3 Ra3 39.Rh2 Rbb3 40.Rc2 Ra4 41.Ke2 Rc4 42.Kd2 a4 43.Bd4 Rc2 44.Kc2 Rb5 45.Bb2 c5 46.Be5 a3 47.Bc3 a2 48.Bb2 Kf7 49.Kc1 Ke6 50.Kc2 Kf5 51.Kc1 Ke4 52.Kc2 Ke3 53.f5 gf5 54.g6 d4 55.g7 Rb8 56.Kd1 Rb2 (57.g8Q a1Q) 0–1. Sebald,Ralph – Rakow,Thorben, GER–chT U15 Bonn, 1996.

9.Nbd2 Qe7 10.0-0 (10.Be2 0-0 (10...Rd8 11.Nh4 Be4 12.Ne4 Ne4 13.Nf3 0-0 14.0-0 Nef6 15.Qc2 e5 16.de5 Ne5=) 11.0-0 Bc7 12.Nh4 Qd6 13.f4 Qe7 14.Nf5 ef5 15.Nc4 Nb6 16.Ne5 Ne4=) 10...0-0 (10...Nb6 11.Be2 Nbd5 (11...Rd8 12.Nh4 Bg6 13.Rc1 Nbd5 14.Ng6 hg6 15.h3 e5 16.Nc4 e4=; 11...Qc7 12.Rc1 0-0 13.b5 Rfc8 14.bc6 bc6 15.Ne5 Be5 16.de5 Ne4+=) 12.Nh4 Be4 13.Nc4 Bc7 14.g3 0-0 15.f3 Bf5 16.e4 Bh3=) 11.Ne5 (11.Be2 Bc7 (11...Rfd8 12.Nh4 Be4 13.Ne4 Ne4 14.Nf3 Nef6 15.Qc2 a5 16.b5 cb5=; 11...Rad8= 12.Nh4 Be4 13.Ne4 Ne4 14.Nf3 Nef6 15.Qc2 e5 16.de5 Ne5=) 12.Nh4 Qd6 13.f4 Qe7 14.Nf5 ef5 15.Nc4 Nb6 16.Ne5 Ne4=) 11...Rfd8 (11...Nb6 12.Be2= (12.Qe2 Nfd5 13.Bb3 Be5 14.de5 Rad8 15.Rad1 Qg5 16.Bd4 Rd7=) 12...Rfd8 13.Qc1 a5 14.ba5 Ra5 15.f3 Bg6 16.e4 Be5=) 12.Qe2 (12.g4 Be5 13.gf5 Bd6 14.fe6 fe6 15.f4 Nb6 16.Bd3 a5=) 12...Nb6 (12...Ne4 13.Ne4 Be4 14.f3 Bd5 15.Bd3 Qh4 16.Qc2 c5+/–) 13.Bb3 (13.e4 Be5 14.de5 Rd2 15.Qd2 Ne4 16.Qe2 Nc4–/+) 13...Be5 (13...Ne4 14.Ndc4 Nc4 15.Nc4 Qh4 16.Nd6 Nd6=) 14.de5 Nfd7 (14...Ne4 15.Ne4 (15.Rfd1 Nd2 16.Rd2 Rd2=) 15...Be4 16.Rad1= (16.Qg4 Bf5=) 16...Qg5=) 15.Rfd1 (15.e4 Bg6+= 16.f4 Qh4+=) 15...c5 (15...a5 16.e4 Bg6=) 16.e4 (16.b5 Qg5+=) 16...Bg6 17.b5 Qg5 18.Rac1 (18.Qf1 Qf4 (18...Ne5? 19.f4 Qe7 20.Be5+–) 19.g3 Qh6=) 18...Ne5+= 19.h4 Rd2 20.Rd2 (20.Rd2 Qf4; 20.Qd2 Nf3) 20...Nf3 21.Qf3 Qd2 22.Rc2 Qe1 23.Kh2 Qe4 24.Qg3? c4–+ 25.h5 cb3 26.hg6 Qg6 27.Qb3 Qh5 28.Kg1 Qd1 29.Kh2 Rd8 30.Qg3 Qh5 31.Qh3 Qh3 32.Kh3 f6 33.Rc7 Rd7 34.Rd7 Nd7 35.Bd4 a6 36.a4 ab5 37.ab5 Kf7 38.Kg3 e5 (38...e5 39.Be3 Ke6–+) 0–1. Croenne,Olivier – Cappon,J (2150), 22nd Open, Bethune FRA, 2001. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 Nd7 4.e3 Ngf6 5.c4 e6 6.a3 c6 7.d4 dc4)

7.d4 Rc8

8.c5 b6 9.Bd3 Bd3 10.Qd3 Be7 11.Nbd2 0-0 12.0-0 Ng4 13.h3 Ngf6 14.Rad1 bc5 (14...a5 15.Ra1=) 15.dc5+= Qc7 16.Qc3 e5? (better is 16...a5!?=) 17.Ne5+/– Ne5 18.Qe5 Ne4?? (better is 18...Qb7+/–) 19.Qg7 1–0. Fournier,Frederic (1815) – Gabb, rated blitz game (2/12), 2002.

8.Nbd2 Bd6 9.Rc1 0-0 10.Qb3 Qe7 11.h3 e5 12.c5 Bb8 13.de5 Ne5 14.Nd4 Bg6 15.f4 (15.Be2 Ne4=) 15...Ned7=+ 16.f5 (16.Be2!?=+) 16...Bg3–/+ 17.Kd1 Bh5 18.Be2 Be2 19.Ne2 Be5 20.Nd4 Bg3 (20...Rfe8 21.g4–/+) 21.Rf1 (21.Ne2 Bf2 22.Bd4–/+) 21...Rfe8–/+ 22.e4 Bh4 23.Rc2 Ne4 24.Ne4 Qe4 (24...de4 25.Re2–+) 25.Re2–/+ Qb1 26.Bc1 Qb3 27.Nb3 Re2 28.Ke2 Re8 29.Kd1 Bf6 (29...Ne5 30.Na5 b6 31.Nb7–/+) 30.Na5 Rb8 31.Re1 Be5 32.g4 f6 33.g5 Kf7 34.h4 Bc7 35.Nb3 Re8 36.g6= hg6 37.fg6 Kf8 38.Re8 Ke8 39.Nd4 Be5 40.Nf5 Kf8 41.h5 Kg8 42.Kc2 Bc7 43.h6 gh6 44.Bh6 Bd8 45.Nd6 Ne5 46.Nb7 Bc7 47.Bf4 Kg7 48.Be5 fe5 49.a4 Kg6–/+ 50.b5 cb5 51.ab5 Kf6 52.c6 e4 53.Nc5 Ba5 54.Na6 Ke6 55.c7? Kd7–+ 56.Kd1 Bc7 ½–½. De Visser,Arno – Koopmans, 1999.

7.d4 Bd6

8.Nc3 0-0 9.c5 Bc7 10.Bd3 Bg4 11.0-0 e5 12.de5 Ne5 13.Be2 Nc4 14.Qc2 (14.Bc4 dc4 15.Qe2 Qd3=) 14...Nb2 15.Qb2 Qe7 16.Rad1 h5 (16...b6!? 17.Na4 b5=+) 17.Nd4= a5 18.Bg4 hg4 19.Nce2 Ne4 20.g3 (20.Ng3!?=) 20...Be5 21.Qd2?? (better 21.Nf4=+) 21...Nd2–+ 22.Rd2 ab4 23.ab4 Ra4 24.Nc2 Bf6 25.Ned4 Qe4 26.Rb1 (26.Rdd1 Rfa8–+) 26...Bd4 (26...Ra2!? 27.Rc1–+) 27.ed4 Ra2 28.Re1 (28.Rc1 Qg6 29.Kf1 Rfa8–+) 28...Qe1! 29.Ne1 Exploits the pin 29...Rd2 30.Kg2 Re8 31.h3 Re1 32.hg4 g5 33.b5 cb5 34.Kf3 (34.c6 bc6 35.Kf3 Ree2 36.Kg2 Rf2 37.Kg1 b4 38.Kh1 Rf1) 34…Ree2 (34...Ree2 35.c6 Rf2 36.Ke3 Rfe2 37.Kf3 Rh2 38.Ke3 Ra2 39.cb7 Ra3) 0–1. workchess – marekt, net–chess.com, 2020.

8.Nc3 0-0 9.Nh4 Bg4 10.Be2 Be2 11.Qe2 dc4 12.Qc4 Nb6 13.Qe2 e5 (13...Nbd5 14.Nd5 Nd5 15.Nf3+=) 14.de5= Be5 15.Nf3 Bc3 16.Bc3 Ne4 17.Bd4 Re8 18.0-0 Qe7 (18...Nd5 19.Rac1=) 19.Rac1 Rad8 20.Rfd1 Rd5 21.Qc2 h6 22.Ne1 (22.Rd3 Red8+=) 22...Ng5 (22...Red8 23.Nd3=) 23.Bc5 Qe6 24.f3 (24.Rd5 Nd5 25.Ba7 f5+=) 24...Red8 (24...Rd1 25.Rd1 Nc4 26.Rd3=) 25.e4+= Rd1 26.Rd1 Qe8 27.Rd3 Nc8 28.Be3 Ne6 29.Kf2 b6 30.Rd8 Nd8 31.Qd3 Ne6 32.Nc2 (32.Kg1 c5+=) 32...Ne7 33.Qd6 Qd8 (33...Nc8 34.Qg3+=) 34.Qd8 Nd8 35.Nd4 f6 36.Bf4 (36.h4 Nf7+=) 36...c5 37.bc5 bc5 38.Nb5 Nec6 39.Be3 Nb7 40.Ke2 Kf7 41.Kd3 a6 (41...Ne5 42.Kc3 a5 43.f4+=) 42.Nc7+/– a5 (42...Ne5 43.Kc3 a5 44.Na6+/–) 43.Kc4 Ne5 44.Kd5 c4 45.Bd4 (45.Bd2 a4+/–) 45...Nd3 46.g3 Ne1 47.f4 (worse is 47.Kc4 Nf3 48.h4 Nd6 49.Kd5 Nc8=) 47...Nf3 48.Kc4 Nh2 49.Kd5 Nf3 50.Be3 h5 (50...Ne1 51.Kc6 Nd8 52.Kd7+–) 51.f5 (51.Kc6 Nd8 52.Kd7 Nb7+–) 51...g5 Black prepares h4 (51...g6 52.Kc6 Nd8 53.Kd7+/–) 52.fg6! Kg6 53.Ne6 h4 (better is 53...a4!?+/–) 54.gh4+– Nh4 55.Bb6 (better is 55.Nf4!? Kf7 56.Kc6 Nd8 57.Kd7 f5+–) 55...Kf7 56.Nf4 Ke7 57.Nh5 Nf3 58.Nf6?? (better is 58.Kc6 Nd8 59.Bd8 Kd8 60.Nf6+/–) 58...Kf6= 59.Kc6 Ke5 60.Kb7 a4 ½–½. Lenda,Lukasz – Bregoszewski,Leon, IV MFSz Mielno Poland, 2008.

8.Nc3 Rc8 9.Qb3 a6 10.a4 0-0 11.b5 cb5 12.ab5 dc4 13.Bc4 Nb6 14.Be2 Ne4 15.0-0 Nc3 16.Bc3 Nd5 17.Ba5 b6 18.Bd2 a5 19.h3 Bg6 20.Rfe1 Bb4 21.Rac1 Qe7 22.Bc4 Bd2 23.Nd2 Nb4 24.e4 Rfd8 25.Nf3 Rc7 26.d5 Rdc8 27.Nd2 ed5 28.ed5 Qh4 29.d6 Rd7 30.Bf7 Normal 1-0. pinokio33 (2200) - Bacher (1900), Rated Blitz tournament jy9f94D4, lichess.org, 2015.

8.Nc3 Rc8 9.c5 Be7=.

8.Nc3 Rc8 9.Be2 0-0 (9...dc4 10.Nd2 Bc7 11.Nc4=) 10.Nh4 Be4 11.Ne4 Ne4 12.Nf3 dc4 13.Bc4 a5 14.0-0 Ndf6 15.Bd3 ab4 16.Qc2 ba3 (16...Nc3 17.e4 c5 18.ab4+=) 17.Bc1+= (worse is 17.Ba3 Ba3 18.Ra3 Qd5+=) 17...c5 18.Be4 cd4 19.Qd3 (19.Qb1 de3 20.Be3 Ne4 21.Qe4 Qe7+=) 19...de3 20.Qe3 Ne4 21.Qe4 Qe7 22.Qd3 Ra8 23.Ng5 g6 24.Ne4 Bb4 25.Qb3 f6 26.Rb1 a2 (26...Bd6 27.Nd6 Qd6 28.Rd1+–) 27.Ra1+– Kg7 28.Ra2 Ra2 29.Qa2 Rc8 30.Qb3 b5 31.Qh3 Rc4 32.Bh6 Kg8 33.Qf3 (33.Qf3 f5 34.Ng5+–) 1–0. Jimenez,Jean Claude – Savelli,David, FRA AJEC46 corr, 1997. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 e6 4.e3 Nf6 5.a3 Nbd7 6.c4 c6 7.d4 Bd6)

8.c5 Bb8 9.Be2 =.

8.c5 Bc7 9.Be2 0-0 10.0-0 Ne4 11.Nbd2 Qf6 12.Kh1 (12.Ne4 Be4 13.Nd2 Bf5=) 12...Qh6 13.Rg1?? (better 13.a4=+) 13…Nf2 0–1. Zaichenko,Andrey (1800) – Carrizo,Jose (1800), FICGS, 2007.

8.Nbd2 Rc8 9.Be2 Ne4 10.Ne4 Be4 11.c5 Bb8 12.0-0 0-0 13.Qb3 Qc7 14.g3 Nf6 15.Ne5 Bf5 16.f3 Qe7 (16...Nd7 17.Nd7 Qd7 18.Bd3=) 17.g4 Bg6 18.Rf2 (18.Ng6 fg6 19.g5 Nd7+=) 18...Nd7 19.Ng6 hg6 (19...fg6 20.Raf1=) 20.Raf1 e5 21.e4 Nf6 22.ed5 Nd5 23.Bc4 Nf4 24.de5 (24.Rd2 b5 25.cb6 ab6=) 24...b5 25.cb6 ab6 (25...Nh3 26.Kg2 Nf2 A) worse 27.Kf2 Be5 (27...ab6?! 28.e6=+) 28.b7 Qh4 29.Ke2 Rce8–+; B) 27.b7=) 26.e6+= fe6 27.Re1 Nh3 (27...Rce8!? 28.Rc2 b5=) 28.Kf1+– Qh4 29.Rg2 Ng5 Exerts pressure on the backward pawn 30.Be6 Kh7 31.Re3 (31.Bc8 Rf3 32.Qf3 Nf3 33.Re3 Nh2 34.Ke2=) 31...Rcd8 (31...Rce8 32.Qc3 Ne6 33.Re6 Rf3 34.Qf3 Re6 35.Re2 Re2 36.Qe2 Bh2 37.Qf3=) 32.Bc4 Bf4 (32...Bh2 33.Bg7 Rfe8= (worse 33...Kg7 34.Qb2 Rf6 35.Rh2+–)) 33.Re7+= Be5 34.Bg8 (34.Re5 Rf3 35.Qf3 Nf3–+) 34...Rg8 35.Be5 Qh3 (35...Qh3 36.Qc3 Nf3 37.Bg7 Nh2 38.Kf2 Qh4 (38...Ng4? 39.Rg4 Qh2 40.Rg2 Qh4 41.Rg3 Qh2 42.Kf3+–) 39.Rg3 Ng4 40.Kf3 Rd3 41.Qd3 Qe7=) 0–1. Trokenheim,Marek (1825) – Czudek,Bohuslav (1800), FICGS, 2017.

8.Bd3 dc4 9.Bc4 a5 10.b5 =+.

8.Nbd2 0-0

9.c5 Bc7 10.Be2 b6 11.Rc1 b5 12.a4 a6 13.Nh4 Bg6 14.Ng6 fg6 15.0-0 Qb8 16.f4 Qe8 17.Ra1 Qe7 18.Qc2 Qf7 19.Ra3 Kh8 20.Bc3 Nh5 21.Nf3 Ndf6? (better 21...ba4!? 22.Ne5 Be5 23.de5 a5 24.ba5 Qe7+–) 22.Ne5+– Qe8 23.g4 Be5 24.de5 (24.gh5?! Bc7 25.ab5 cb5 26.hg6 Ne4+–) 24...Ne4 25.Bd4 Nhg3 26.hg3 Ng3 27.Rfa1 Qe7?! (27...Ne2 28.Qe2 g5+–) 28.ab5 Qh4 (28...cb5 29.Bb5 Qh4 30.Qh2 (30.Ra6 Ra6 31.Ra6 Qh1 32.Kf2 Qh2 33.Kf3 Qc2 34.Kg3 g5–+) 30...Qg4 31.Kf2 Ne4 32.Ke1+–) 29.Bf3 (29.ba6 Qh1 30.Kf2 Ne4 31.Qe4 Qe4–+; 29.Ra6 Ra6 30.Ra6 Qh1 31.Kf2 Ne4 32.Qe4 Qe4+=) 29...Qd8 (29...g5 30.Qh2 cb5 31.Ra6 Ra6 32.Ra6 Qh2 33.Kh2 gf4 34.ef4 Nf1 35.Kh3+–) 30.b6 (30.Qg2 Ne4 31.Ra6 Rb8 32.Be4 de4 33.Qe4 cb5+–) 30...Qc8 (30...g5 31.Qh2 gf4 32.ef4+–) 31.b5! Qb7 (31...ab5 A pinning theme 32.Ra8) 32.ba6 Qb8 (32...Qf7 33.Rb1 Rfb8 34.Qb3+–) 33.Kg2 (better 33.Qa4!? Ne4 34.Be4 de4 35.Qc6 Qd8+–) 33...Ne4 34.Be4 de4 35.Qe4 Qe8 36.Rb1 Qd7 37.b7 Qc7 38.a7 (38.a7 h6 39.Qg6+–) 1–0. marekt – workchess, net–chess.com, 2020.

9.Be2 a5 10.c5 Bc7 11.b5 Re8 12.b6 Bb8 13.Nh4 Ne4 14.Nf5 Nf2?? (better is 14...ef5 15.g3 Qf6=) 15.Nh6! gh6 16.Kf2 Qh4 (16...Qf6 17.Nf3 Nc5 18.dc5 Qb2 19.Rf1+–) 17.g3 (17.Kg1!? e5+–) 17...Qf6 18.Kg2 Kh8? (18...Nc5 19.Rf1 Qg7+–) 19.Rf1 Qg5 (19...Qg7+–) 20.Rf7 Nf6 (20...Re7 21.Nf3 Rf7 22.Ng5 hg5 23.Bg4+–) 21.Qf1 Ne4 (21...Ng8 22.Nf3 Qd8 23.Rb7 Rf8+–) 22.Ne4 de4 23.Rb7 Rg8 24.Qf7 Rg7 25.Qe6 Bg3 (25...Be5 26.Rg7 Bg7 27.Qc6+–) 26.Rg7 (26.hg3?? Qg3 27.Kh1 Qg2) 26...Qg7 27.hg3 (27.hg3 Rg8 28.Kh1+–) 1–0. b4_player – mikrus, casual, 2013.

9.Be2 Ne4 10.0-0 Qf6 11.Re1 Qh6 12.Nf1 (12.c5 Bc7=) 12...Rad8 13.Qb3 g5 (13...dc4 14.Bc4 Bg4 15.Be2=+) 14.Bd3 (14.c5 Bc7=) 14...Ndf6 (14...g4 15.Be4 Be4 16.N3d2=) 15.cd5 cd5 16.Ne5 g4 17.Rac1 Qg5 18.Re2 h5 (18...Nh5 19.Be4 Be4 20.Nd2=) 19.Kh1 Qh4 20.Rcc2 g3 (20...Rc8 21.Kg1+=) 21.Nf3+/– (21.Ng3 Be5 22.de5 Ng4–/+) 21...Qg4 22.hg3 Nf2? (better is 22...Rc8!?+/–) 23.Rf2+– Bd3 24.Qd3 Ne4 25.Rfe2 Bg3 26.Ng3 (better is 26.Qb5+–) 26...Ng3+/– 27.Kg1 Ne2 28.Re2 Rc8 29.e4 f6 (29...Rfd8 30.ed5 Rd5 31.Ne5+/–) 30.Re3 (better is 30.ed5!? ed5 31.Qb5+–) 30...Rc7+/– 31.Ne5 (better is 31.ed5 Rg7 32.Re2 ed5 33.Bc1+/–) 31...fe5? (better is 31...de4 32.Re4 Qf5+/–) 32.Rg3+– de4? (32...Rf4 33.Rg4 Rg4 34.ed5 Rcg7+–) 33.Rg4 hg4 34.Qe4 (34...Rf5 35.d5+–) 1–0. Alekseyev,Vadim – Skytte,Rasmus, Tula, 2000.

9.Be2 Re8 10.Ne5 Qc7 (10...Ne4 11.Ne4 Be4 12.f3=) 11.g4+= Bg6 12.Ng6 hg6 13.g5 Ne4 (13...Nh7 14.h4+=) 14.Ne4+/– de4 15.c5 Be7 16.h4 Rad8 (16...a5 17.Qc2+/–) 17.Qc2+– e5 18.h5 gh5 (18...Nf8 19.hg6 Ng6 20.Qe4 Bg5 21.Bc4+–) 19.g6 fg6 20.Bc4 Kh7 (20...Kf8 21.Qe4 b5 22.Bb3+–) 21.Qe4 (21...Nf6 22.Rh5 Nh5 23.Bf7+–) 1–0. Kocandrle,Jaroslav (2140) – Verhaeren,Gertjan, TE.2004.P.01713, 2004.

9.Be2 h6 10.0-0 Re8 11.Ne5 Ne4 (11...Qe7 12.f4=+) 12.Ne4= Be4 13.f3 Bh7 14.Qb3 a6 15.a4 Qc7 16.f4 Nf6 17.c5 Be5 18.fe5 Ne4 19.Bc3 Nc3 (19...Qd7 20.Rf4=) 20.Qc3+= Bg6 21.Bd3 Bd3 22.Qd3 Qe7 (22...b6 23.cb6 Qb6 24.Rab1+=) 23.Rf4 Rf8 24.Raf1 h5 (24...Qg5 25.R4f3+=) 25.R1f3 g6 26.Rg3 Kg7 27.Rf6 Qe8 28.Qb1 Rh8 29.Rgf3 Rf8 30.Rh3 Rh8 31.e4 de4 32.Qe4 Kg8 33.Qe2 Rh7 34.Rf4 a5 35.b5 Qd7 36.Qc4 Kg7 37.Rhf3 Kg8 38.Rb3 Kg7 39.Qd3 Rhh8 40.Qb1 Ra7 41.Rg3 (41.Qc2 Rf8+–) 41...Raa8 (41...cb5!? 42.ab5 a4+=) 42.Qd3+– cb5 43.Rf6 (43.ab5 Rhf8 44.Rf6 Kh8+–) 43...Qe8 (43...ba4!? 44.Rgg6 Kf8+=) 44.ab5 a4 45.Qe4 a3?? (better 45...Kh6 46.Qf3 Rf8+–) 46.Qb7 Kh6 (46...Rh7 47.Rfg6 Kh8 48.Rg8 Qg8 49.Rg8 Rg8+–) 47.Rf7 (47.Rf7 Qg8 48.Qf3 Qf7 49.Qf7+–) 1–0. Pierre – Zyssie, internet, 2020.

8.Nbd2 h6

9.c5 Bb8 A) 10.Qa4 0-0 (10...Bc7 11.Be2 0-0 12.0-0 Ne4 13.b5 cb5 14.Qb5 Ndf6 15.g3 Qe7 16.Bd3 Rab8; 10...a6 11.Be2 0-0 12.0-0 Bc7 13.Bc3 Qe7 14.h3 Ne4 15.Ne4 Be4 16.Qb3 e5) 11.Be2 Ne4 12.0-0 Ndf6 13.b5 cb5 14.Qb5 Qe7 15.Bd3 Bc7 16.g3 Rfd8; B) 10.h3 Bc7 (10...0-0 11.Be2 Bc7 12.0-0 Qe7 13.Qb3 a5 14.Nh4 Bh7 15.Nhf3 a4 16.Qa2 Ne4; 10...Ne4 11.Be2 Bc7 12.0-0 Qf6 13.Ne4 de4 14.Nd2 Qg5 15.Kh1 0-0 16.Nc4 Rfd8; 10...Qe7 11.Be2 Bc7 12.Qa4 Ne4 13.b5 0-0 14.bc6 bc6 15.Qc6 Ba5 16.Rd1 Rab8; 10...a5 11.Be2 0-0 12.0-0 ab4 13.ab4 Ra1 14.Qa1 Ne4 15.Rd1 Ndf6 16.Qa4 Qc7; 10...Bg6 11.Be2 0-0 12.Qa4 Ne4 13.b5 cb5 14.Qb5 Bc7 15.0-0 Ndf6 16.Rac1 Bh5) 11.Be2 0-0 12.0-0 Ne4 13.Ne4 Be4 14.Qb3 Qf6 15.Bc3 Rfe8 16.Rac1 Qg6; C) 10.Qb3 Ne4 (10...Bc7 11.Be2 Ne4 12.0-0 0-0 13.Rfd1 Ndf6 14.h3 a5 15.ba5 Ba5 16.a4 Ra7; 10...0-0 11.Bd3 Ne4 12.0-0 Ndf6 13.g3 Bc7 14.a4 Qe7 15.Qc2 Nd2 16.Nd2 Qd7; 10...Be4 11.Ne4 Ne4 12.Bd3 0-0 13.0-0 Ndf6 14.g3 Bc7 15.Rad1 Qd7 16.Ne5 Qe7; 10...Bg6 11.b5 Bc7 12.Bd3 Ne4 13.bc6 bc6 14.Qc2 Rb8 15.Rb1 Nd2 16.Nd2 Qg5; 10...a6 11.Be2 0-0 12.0-0 Bc7 13.Bc3 Qe7 14.h3 e5 15.de5 Ne5 16.Ne5 Be5) 11.Ne4 de4 12.Ne5 0-0 13.Nd7 Qd7 14.Qc3 Qd5 15.h4 f6 16.Bc4 Qd7; D) 10.Be2 0-0 (10...Bc7 11.0-0 0-0 12.Qa4 Ne4 13.b5 cb5 14.Qb5 Ndf6 15.Ne4 Ne4 16.Ne5 f6; 10...Qe7 11.Qa4 Bc7 12.0-0 0-0 13.h3 Ne4 14.Ne4 de4 15.Ne5 Ne5 16.de5 Qg5; 10...a5 11.0-0 0-0 12.b5 a4 13.h3 Ne4 14.Rc1 Qe7 15.Ne4 de4 16.Nh2 Rd8; 10...Ne4 11.Ne4 Be4 12.0-0 0-0 13.b5 cb5 14.Bb5 Bc7 15.Qe2 Qe7 16.h3 Nf6; 10...a6 11.Nh4 Bh7 12.0-0 0-0 13.Qb3 Bc7 14.Nhf3 Qe7 15.h3 Ne4 16.Ne4 Be4) 11.0-0 Bc7 12.Qa4 Qe7 13.h3 Ne4 14.Ne4 de4 15.Ne5 Rfd8 16.Rfd1 Qg5.

9.c5 Bc7 A) 10.h3 0-0 (10...Ne4 11.Be2 0-0 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 a5 15.Qe2 Qe7 16.b5 cb5) 11.Be2 Ne4 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Rfd8 16.Qc2 a5; B) 10.Qb3 a5 (10...0-0 11.Bd3 Ne4 12.0-0 Ndf6 13.g3 Qe7 14.Rfe1 Ng4 15.Rf1 Nd2 16.Nd2 Qg5; 10...Ne4 11.Be2 0-0 12.0-0 Ndf6 13.g3 Qe7 14.Rfe1 a5 15.Ne4 Ne4 16.Nh4 Bh7; 10...Qe7 11.Be2 Ne4 12.0-0 Ndf6 13.h3 0-0 14.a4 Rfd8 15.Rfd1 Nd2 16.Nd2 Ne4) 11.Be2 Ne4 12.0-0 0-0 13.ba5 Ndf6 14.h3 Ba5 15.Ne4 Ne4 16.Bd3 Qc7; C) 10.Qa4 0-0 (10...Ne4 11.Be2 0-0 12.0-0 Ndf6 13.g3 Qe7 14.Rfe1 Rfe8 15.b5 cb5 16.Qb5 Bg4; 10...Qe7 11.Be2 Ne4 12.0-0 Nd2 13.Nd2 0-0 14.b5 cb5 15.Qb5 Nf6 16.g3 h5) 11.Be2 Ne4 12.0-0 Ndf6 13.g3 Qe7 14.Rfe1 Rfd8 15.b5 cb5 16.Qb5 Bg4; D) 10.Be2 Qe7 (10...Bg6 11.0-0 0-0 12.b5 Ne4 13.Ne4 de4 14.Nd2 cb5 15.Bb5 Nf6 16.f4 Nd5; 10...0-0 11.0-0 Ne4 12.Ne4 de4 13.Nd2 Qg5 14.g3 Nf6 15.Qc2 Rfd8 16.Rfe1 Rd5; 10...Ne4 11.0-0 0-0 12.Ne4 de4 13.Nd2 Qg5 14.g3 Nf6 15.Qc2 Rad8 16.Rac1 Rd7; 10...Qc8 11.0-0 0-0 12.Qb3 Qd8 13.b5 Ne4 14.Rac1 Ndf6 15.Rfd1 Rb8 16.h3 Ba5; 10...a6 11.0-0 0-0 12.a4 Ne4 13.Ne4 de4 14.Ne5 Ne5 15.de5 Qb8 16.Ra2 Be5) 11.0-0 0-0 12.h3 e5 13.Qa4 a5 14.b5 ed4 15.Nd4 Qe5 16.N2f3 Nc5.

9.c5 Be7 A) 10.Be2 0-0 (10...Qc7 11.Nh4 Bh7 12.0-0 0-0 13.Qb3 b6 14.g3 bc5 15.bc5 Rab8 16.Qc3 Rfe8; 10...Qb8 11.0-0 0-0 12.Qb3 Qc7 13.h3 b6 14.Bd3 bc5 15.Bf5 c4 16.Qc2 ef5; 10...b6 11.Qa4 b5 12.Qa6 Qc7 13.a4 ba4 14.Qa4 0-0 15.0-0 Rfb8 16.Bc3 Ne4; 10...Bg6 11.0-0 0-0 12.Qb3 Qc7 13.h3 b6 14.Bd3 Bd3 15.Qd3 Rfb8 16.Bc3 bc5; 10...Ne4 11.0-0 0-0 12.Ne4 Be4 13.Bd3 Qc7 14.h3 Bd3 15.Qd3 Nf6 16.Ne5 Nd7) 11.0-0 Qc7 12.h3 b6 13.Bc3 Rfb8 14.Re1 bc5 15.dc5 a5 16.Nd4 Be4; B) 10.Qb3 a5 (10...0-0 11.Bd3 Ne4 12.0-0 Ndf6 13.Rad1 Nd2 14.Nd2 a5 15.Bf5 ef5 16.b5 a4; 10...Ne4 11.Bd3 0-0 12.0-0 Ndf6 13.Rad1 Nd2 14.Nd2 Qc7 15.f3 Bd3 16.Qd3 a5) 11.Be2 ab4 12.0-0 ba3 13.Ra3 Ra3 14.Ba3 0-0 15.Qb7 Qa8 16.Qa8 Ra8; C) 10.Nh4 Bh7 (10...Be4 11.Be2 0-0 12.0-0 Qc7 13.Qb3 b6 14.f4 bc5 15.dc5 a5 16.Bd4 Bh7) 11.Be2 Qc7 12.0-0 0-0 13.f4 Ne4 14.Ne4 de4 15.g3 Nf6 16.Qd2 Nd5; D) 10.Qa4 0-0 (10...Qc7 11.Be2 0-0 12.0-0 b6 13.Qa6 Rab8 14.Bc3 Ne4 15.Ne4 de4 16.Nd2 Nf6; 10...a5 11.b5 Qc7 12.b6 Qd8 13.Be2 0-0 14.0-0 Ne4 15.Rac1 Re8 16.Rfd1 Ndf6; 10...Ne4 11.Be2 0-0 12.Ne4 Be4 13.0-0 Qc7 14.h3 Bf6 15.Rac1 Rfe8 16.b5 e5; 10...b5 11.Qa6 Qc7 12.a4 Nb8 13.Qa5 Qa5 14.ba5 ba4 15.Ra4 Nbd7 16.Rb4 0-0; 10...Qc8 11.Be2 0-0 12.0-0 Qc7 13.Rac1 Ne4 14.Ne4 Be4 15.h3 Rfe8 16.Bc3 Bf6) 11.Be2 Qc7 12.0-0 b6 13.Qa6 Ne4 14.Ne4 Be4 15.Bc3 Bf6 16.Rac1 Rab8; E) 10.h3 0-0 (10...Qc7 11.Be2 0-0 12.0-0 b6 13.Bc3 Rfb8 14.Qa4 a5 15.Qd1 bc5 16.bc5 a4; 10...b6 11.Qa4 Qc7 12.g4 Bh7 13.cb6 Nb6 14.Qa5 Ne4 15.Rc1 Nd2 16.Nd2 a6; 10...Ne4 11.Be2 0-0 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Bf6 15.Qc2 a5 16.Nd2 Nd2; 10...Rb8 11.Be2 0-0 12.0-0 Qc7 13.Nh4 Bh7 14.Qa4 Ne4 15.Nhf3 b6 16.Ne4 Be4; 10...a5 11.Be2 0-0 12.b5 Ne4 13.0-0 Bf6 14.Qb3 Nd2 15.Nd2 e5 16.Nf3 ed4) 11.Be2 Qc7 12.0-0 b6 13.Bc3 Rfb8 14.Re1 Ne4 15.Ne4 de4 16.Nd2 bc5.

9.Be2= 0-0 10.0-0 Ne4 11.Ne4= (11.c5 Bc7 12.Ne4 de4 13.Nd2 Qg5 14.g3 Nf6 15.Qc2 Rfd8 16.Rfe1 h5) 11...de4 (11...Be4 12.c5 Bc7 13.Qb3= Qf6 14.h3 a5 15.ba5 Ba5 16.a4 b6) 12.Ne5 Be5 (better is 12...Bc7!?= 13.f4 ef3 14.Nf3 Nf6 15.Bd3 Qe7 16.Qe2 Be4; 12...Qe7 13.c5 Bc7 14.Qc2 Rad8 15.Rfd1 Qg5 16.Bc3 Ne5) 13.de5+= Qc7 (13...Nb6 14.Qc2+/– (14.Qd8 Rad8 15.Bd4 h5 16.h3 h4) 14...Qc7 15.Rad1 a5 16.Rd6 ab4) 14.Qd6+/– Qd6 (14...Qc8 15.c5+/– (15.Rad1 Nb6 16.Ba1 Na4) 15...Rd8 16.Rfd1 Nf8) 15.ed6 b6 (15...e5 16.c5+/– (16.f4 ef3) 16...Be6) 16.g4+– Bh7 (16...Bg6 17.Kg2+–) 17.f4 (17.Kg2 f6+–) 17...ef3 18.Bf3 Rac8 19.Rad1 (19.Rac1 e5+/–) 19...e5 20.h4 g5 (20...f5 21.gf5 Bf5 22.Kg2+/–) 21.Kg2 e4 22.Be2 c5 (22...f6 23.hg5 hg5 24.Bd4+–) 23.Rf6 Nf6 (23...Bg6 24.h5 Bh7 25.Bc3+–) 24.Bf6 Rcd8 (24...gh4 25.d7 Rcd8+–) 25.bc5 bc5 26.hg5 hg5 (26...Rd7 27.gh6 Rc8 28.g5+–) 27.d7 Bg6 (27...Rb8 28.d8R Rfd8 29.Rd8 Rd8 30.Bd8+–) 28.Kg3 Bh7 (28...Rb8 29.d8Q Rfd8 30.Rd8 Rd8 31.Bd8+–) 29.Rd5 Bg6 (29...Ra8 30.d8R Rad8 31.Bd8+–) 30.Bd1 Kh7 (30...Rb8 31.Rc5 a6 32.Rg5+–) 31.Ba4 (31.Ba4 Rb8 32.Rc5+–) 1–0. Trokenheim,Marek (2175) – Mantau,Jan (2060), RSS7E basic–28, 2010.

9.Be2 0-0 10.0-0 Re8 11.Rc1 Qe7 12.Qb3 White prepares the advance b5 12...Rac8 13.Rfd1 a6 14.h3 g5 (14...Ne4 15.Ne4 Be4 16.c5=) 15.b5 (15.Ne5 Bc7+=) 15...Kh7 (better 15...ab5 16.cb5 c5=) 16.c5+/- Bb8 17.ba6 ba6 18.Ba6 Rcd8 (18...Rc7 19.Qa4+-) 19.Bc3 (19.Bb7 Bc7 20.Bc6 Rb8+-) 19...Rg8 Black intends g4 (19...Bc7+-) 20.Ba5 Rdf8 21.g4 h5? (21...Bg6+-) 22.gf5 g4 23.hg4 Rg4 (23...hg4 24.Ne1 g3 25.Ng2+-) 24.Kf1 ef5 25.Bb7 Ne4 (25...Qe6 26.Qa4 f4 27.Qc6 fe3 28.Qe6 fe6 29.fe3+-) 26.Bc6 Ndf6 27.Bd5 Rfg8 (27...Rg7 28.c6 Rc8 29.c7 Rc7 30.Bc7 Bc7 31.Ba8+-) 28.Qb7 (better 28.Bf7!? Nd2 29.Bd2 Rf8+-) 28...Nd5 29.Qd5 Nf2 (29...Kg6 30.c6 Nd2 31.Nd2+-) 30.Qf5 R8g6 (30...Kh6 31.Kf2 Rg2 32.Kf1 Qe3 33.Qf6 Kh7 34.Qf7 Kh6 35.Qf6 Kh7 36.Qf5 Kh6 37.Qf8 Rf8 38.Kg2 Rg8 39.Kh1 Qe6 40.Ng1 Qg4 41.d5 Qg2) 31.Re1 Bg3 (31...Qa7 32.Kf2 Bg3 33.Kf1 Be1 34.Bb6 Qa3 A) 35.Ne1?! Qe3 36.Ndf3 Kh6 37.Qg6 fg6+=; B) 35.Ke1?! Qc1 36.Ke2 Rg2 37.Kd3 Qa3 38.Kc4 B1) 38...Qe3? 39.Qf7 (39.Qh5?! Kg8+=) 39...Kh6 40.Bc7 Qe6 41.Qe6 Re6 42.d5+-; B2) 38...Kg8+/-; C) worse 35.Qh5 Kg8 36.Qg6 Rg6 37.Re1 Qd3 38.Kf2 Rf6+-; D) 35.Qf7 Kh8 36.Re1+- (36.Ne1 Qe3 37.Qf8 Rg8 38.Qf6 Kh7 39.Qf7 Kh6 40.Qf6 R4g6 41.Qg6 Rg6-/+)) 32.Ke2 (better 32.c6!? Nh1 33.Bb4 Qe8+-) 32...Kg7 33.Bc3 Nh3 34.d5 Kg8 (34...f6 35.d6 Qa7+-) 35.Qh5 (better 35.Rh1 Nf4 36.Kd1 Nd5 37.Qd5+-) 35...Nf4-+ 36.Kd1 Nh5 37.Rh1 Qa7?? (better 37...Ng7 38.Bd4 f5-+) 38.Rh5+/- Qa4 39.Rc2 f6 40.c6 Be5 (better 40...Bc7 41.Rh1 Qb5+/-) 41.Be5?? (41.Re5 Rg1 42.Ng1 Rg1 43.Ke2 fe5+-) 41...fe5?? (better 41...Rg1 42.Ng1 Rg1 43.Ke2 Qc2 44.Bf6 Qd1 45.Kf2 Re1 46.Rh8 Kf7-+) 42.Ne5?? (42.Rh1 Rf6 43.Ne5+-) 42...Rg1-+ 43.Nf1 (43.Ke2 Qc2 44.Ng6 Rg2 45.Kf3 Qg6 46.Rh4 Qg3 47.Ke4 Qh4 48.Kd3-+) 43...Qc2 (43...R6g2 44.Rg5 Rg5-+) 44.Kc2+- Rf1 (44...Rf6 45.Nd2 Rg7 46.Ne4+-) 45.c7 (better 45.Ng6 Rf7 46.d6 Rf2 47.Kd3 Kg7+-) 45...Rc6 (45...Rg2 46.Kd3 Rf8+-) 46.Nc6 (46.Nc6 Rf2 47.Kd3 Kg7 48.c8Q Rd2 49.Kd2 Kf7 50.Qf5 Kg8 51.Rg5 Kh8 52.Qh3) 1-0. jhonores (2255) - MrBadbeat (2335), Rated Blitz game, 2020.

9.Be2= 0-0 10.Qb3 Ne4 11.c5 Bc7 12.0-0 Ndf6 13.Rfd1 a5 14.g3 Bg4 15.Qd3 Qd7 16.Ne5 Be2.

9.Be2= 0-0 10.c5 Bc7 (10...Be7 11.0-0 Qc7 12.h3 b6 13.Bc3 Rfb8 14.Qa4 bc5 15.bc5 a5 16.Rfc1 Rb7; 10...Bb8 11.0-0 Bc7 12.h3 Qe7 13.Qa4 a6 14.Rfe1 Ne4 15.Ne4 Be4 16.Ra2 e5) 11.0-0 Ne4 12.Ne4 de4 13.Nd2 Qg5 14.g3 Nf6 15.Qc2 Rad8 16.Qa4 a6.

9.Be2= 0-0 10.h3 Ne4 (10...Qe7 11.c5 Bc7 12.0-0 Ne4 13.Ne4 de4 14.Ne5 Rad8 15.Qc2 Qg5 16.Rad1 Bh3; 10...Bc7 11.0-0 Qe7 12.c5 e5 13.Qb3 e4 14.Nh4 Be6 15.f4 ef3 16.Nhf3 Ne4; 10...a5 11.c5 Bc7 12.0-0 Ne4 13.ba5 Qe7 14.g4 Bg6 15.Qb3 Ba5 16.Rfd1 f5; 10...Be4 11.0-0 Qc7 12.c5 Be7 13.Ne4 Ne4 14.Bd3 a5 15.Qc2 ab4 16.ab4 f5; 10...dc4 11.Nc4 Nb6 12.Nd6 Qd6 13.Ne5 Ne4 14.g4 Bh7 15.Bd3 f6 16.Nc4 Nc4) 11.0-0 Qf6 12.c5 Bc7 13.Qc1 Rfe8 14.Re1 e5 15.Ne4 Be4 16.Qd2 Rac8.

9.Be2= 0-0 10.Nh4 Bh7 (10...Be4 11.0-0 Qc7 12.g3 Bh7 13.c5 Be7 14.Bc3 b6 15.Qa4 Rab8 16.Rfc1 Rfe8) 11.0-0 Ne4 12.g3 Ng5 13.Qb3 Qf6 14.c5 Bc7 15.Rac1 Rfe8 16.b5 e5.

9.Be2= Qc7 A) 10.h3 a5 (10...0-0 11.0-0 Be7 12.cd5 ed5 13.Rc1 Bd6 14.Nh4 Bh7 15.Nhf3 Rfe8 16.Qb3 Qb6; 10...Bg6 11.c5 Be7 12.0-0 0-0 13.Qb3 b6 14.Bd3 Bd3 15.Qd3 Rab8 16.Rab1 a5; 10...Rc8 11.c5 Be7 12.0-0 0-0 13.Qb3 Rb8 14.Bd3 b6 15.Bf5 ef5 16.cb6 ab6; 10...Rd8 11.c5 Be7 12.0-0 0-0 13.Qb3 b6 14.Bd3 Rb8 15.Bf5 ef5 16.cb6 ab6; 10...a6 11.c5 Be7 12.Qb3 a5 13.b5 a4 14.Qc3 cb5 15.0-0 0-0 16.Bb5 Rfc8) 11.c5 Be7 12.b5 b6 13.0-0 0-0 14.Rc1 Rfc8 15.a4 bc5 16.dc5 Nc5; B) 10.c5 Be7 11.0-0 0-0 12.Qb3 b6 13.Bd3 bc5 14.Bf5 c4 15.Qc2 ef5 16.Qf5 a5; C) 10.Qb3 0-0 (10...a5 11.c5 Be7 12.b5 a4 13.Qc3 cb5 14.Bb5 0-0 15.0-0 Ne4 16.Ne4 Be4; 10...Rb8 11.0-0 0-0 12.h3 Ne4 13.Rad1 Ndf6 14.g4 Nd2 15.Rd2 Bh7 16.c5 Be7; 10...Ne4 11.Ne4 Be4 12.c5 Be7 13.0-0 0-0 14.Bd3 a5 15.b5 a4 16.Qc3 Bd3) 11.0-0 a5 12.c5 Be7 13.b5 a4 14.Qc3 cb5 15.Bb5 Nb8 16.h3 Nc6; D) 10.Nh4 Bh7 (10...Be4 11.Ne4 Ne4 12.cd5 cd5 13.Rc1 Qd8 14.g3 a5 15.0-0 ab4 16.ab4 0-0) 11.g3 0-0 12.0-0 Be7 13.cd5 ed5 14.Bc3 Rfe8 15.Qb3 Bd6 16.a4 a6; E) 10.0-0 0-0 (10...Ne4 11.h3 Ndf6 12.c5 Be7 13.Ne5 0-0 14.Bd3 Nd7 15.Nd7 Qd7 16.Ne4 Be4; 10...Bh7 11.c5 Be7 12.Qb3 0-0 13.h3 Rfe8 14.Bd3 Bf5 15.Qc2 g6 16.a4 b6) 11.h3 b6 12.Qb3 a5 13.c5 Be7 14.Nh4 Bh7 15.cb6 Qb6 16.Bc3 ab4.

9.Be2= Ne4 A) 10.c5 Bc7 (10...Nd2 11.Qd2 Bc7 12.Ne5 0-0 13.0-0 Ne5 14.de5 Qg5 15.g3 Bg4 16.f3 Bh3; 10...Be7 11.0-0 0-0 12.Ne4 Be4 13.Bd3 Qc7 14.h3 Nf6 15.Ne5 Rfd8 16.Qe2 Nd7; 10...Bb8 11.Ne4 Be4 12.0-0 0-0 13.Qa4 Bc7 14.Rac1 a6 15.Bc3 Qf6 16.Nd2 Bf5) 11.0-0 0-0 12.Ne4 de4 13.Nd2 Qg5 14.g3 Nf6 15.Qc2 Rad8 16.Qa4 a6; B) 10.Ne4 Be4 (10...de4 11.Ne5 Qg5 12.g4 Bg6 13.h4 Qf6 14.Nd7 Kd7 15.Qc2 Rad8 16.c5 Bc7) 11.c5 Bc7 12.0-0 0-0 13.Qb3 Qf6 14.b5 Rab8 15.Bc3 e5 16.Qb2 Rfe8; C) 10.cd5 ed5 (10...cd5 11.Ne4 Be4 12.Rc1 a5 13.Bc3 0-0 14.0-0 Qe7 15.ba5 Ba3 16.Ra1 Bd6) 11.0-0 Qf6 12.Ne4 Be4 13.Qb3 0-0 14.b5 c5 15.dc5 Nc5 16.Qa2 Qf5; D) 10.h3 0-0 (10...Qf6 11.0-0 0-0 12.c5 Bc7 13.Ra2 Qe7 14.Ne4 de4 15.Ne5 Rad8 16.Qc2 Qg5; 10...Qe7 11.0-0 0-0 12.Ne4 Be4 13.c5 Bc7 14.Qb3 e5 15.Rfe1 Rfe8 16.Rac1 ed4; 10...Nd2 11.Qd2 Nf6 12.0-0 Ne4 13.Qd1 0-0 14.c5 Bc7 15.Bd3 Qe7 16.Qe2 Rfd8; 10...a5 11.c5 Bc7 12.b5 cb5 13.Qb3 0-0 14.Qb5 Ndf6 15.0-0 Qe7 16.Rad1 a4; 10...Ndf6 11.0-0 0-0 12.Ne4 Ne4 13.c5 Bc7 14.Bd3 Qf6 15.Ne5 Qg5 16.f4 Qh4) 11.c5 Bc7 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Rfd8 16.Qc2 a5; E) 10.0-0 0-0 (10...Qf6 11.c5 Bc7 12.Ne4 Be4 13.Qb3 0-0 14.b5 Rab8 15.Bc3 e5 16.Qa4 ed4; 10...Qe7 11.Ne4 de4 12.Ne5 0-0 13.Qc2 Bc7 14.c5 Rad8 15.Rad1 Qg5 16.Bc3 Nf6; 10...Nd2 11.Qd2 0-0 12.c5 Bc7 13.Ne5 Qe7 14.Bc3 Ne5 15.de5 Qg5 16.f4 Qe7; 10...Qc7 11.c5 Be7 12.Ne4 Be4 13.Bd3 0-0 14.h3 Bd3 15.Qd3 Nf6 16.Ne5 Nd7) 11.Ne4 Be4 12.c5 Bc7 13.Qb3 Qf6 14.h3 a5 15.Nd2 Bf5 16.Nf3 a4.

9.Be2= Qe7 A) 10.0-0 0-0 (10...Bc7 11.h3 0-0 12.cd5 ed5 13.Rc1 Bd6 14.Qa4 Ne4 15.b5 Rfc8 16.bc6 bc6; 10...Ne4 11.Ne4 de4 12.Ne5 0-0 13.c5 Bc7 14.Qc2 Rfd8 15.Rfd1 Qg5 16.a4 Ne5) 11.Qb3 Bc7 12.cd5 ed5 13.Bd3 Ne4 14.Rad1 a5 15.b5 Ndf6 16.Ne5 a4; B) 10.c5 Bb8 (10...Bc7 11.0-0 0-0 12.h3 Ne4 13.Ne4 de4 14.Ne5 Qg5 15.Qc2 Rfd8 16.Rfd1 Nf6) 11.Qa4 Bc7 12.0-0 0-0 13.h3 Ne4 14.Ne4 de4 15.Ne5 Rfd8 16.Rfd1 Qg5; C) 10.h3 Ne4 (10...Bc7 11.0-0 0-0 12.c5 Ne4 13.Ne4 Be4 14.Qb3 e5 15.Rfe1 Rfe8 16.Red1 ed4; 10...0-0 11.0-0 Bc7 12.c5 e5 13.Qa4 a5 14.b5 ed4 15.Nd4 Qe5 16.N2f3 Nc5; 10...Bh7 11.0-0 0-0 12.Qb3 Ne4 13.Ne4 Be4 14.c5 Bc7 15.b5 Rab8 16.Qa4 Nf6; 10...e5 11.cd5 cd5 12.de5 Ne5 13.Bb5 Bd7 14.Bd7 Ned7 15.0-0 0-0 16.Rc1 a5; 10...a6 11.c5 Bc7 12.0-0 0-0 13.Qb3 a5 14.Nh4 Bh7 15.Nhf3 a4 16.Qd1 Ne4) 11.0-0 0-0 12.Ne4 de4 13.Ne5 Rad8 14.Qc2 Qg5 15.c5 Bh3 16.Qe4 Bf5; D) 10.Nh4 Bh7 (10...Be4 11.0-0 0-0 12.Ne4 Ne4 13.g3 Ndf6 14.Qc2 Bc7 15.f3 Ng5 16.c5 Nh3) 11.0-0 0-0 12.g3 Bc7 13.Rc1 Nb6 14.c5 Nbd7 15.Qa4 a6 16.Rfe1 Ne4; E) 10.Qb3 Ne4 (10...0-0 11.0-0 Rac8 12.h3 Bc7 13.Rac1 Ne4 14.cd5 Nd2 15.Nd2 cd5 16.Rc3 Qd6; 10...Rc8 11.0-0 0-0 12.h3 Bc7 13.Rac1 Ne4 14.cd5 Nd2 15.Nd2 cd5 16.Rc3 Qd6; 10...Rd8 11.0-0 0-0 12.c5 Bc7 13.h3 Ne4 14.Rad1 Ndf6 15.a4 Rfe8 16.Rfe1 Nd2; 10...Be4 11.0-0 0-0 12.Ne5 Bf5 13.h3 Bc7 14.a4 Rad8 15.Rfd1 Ne4 16.cd5 ed5; 10...Rb8 11.0-0 0-0 12.h3 b6 13.Ne5 Rbc8 14.c5 bc5 15.Nd7 Nd7 16.dc5 Be5) 11.0-0 Nd2 12.Nd2 Nf6 13.Bc3 0-0 14.g3 Rac8 15.c5 Bc7 16.Rfe1 Rfe8.

9.h3 0-0 A) 10.Be2 Ne4 (10...Qc7 11.0-0 Be7 12.Qb3 a5 13.c5 b5 14.Rfe1 Rfe8 15.a4 ba4 16.Ra4 ab4; 10...Be4 11.0-0 Qe7 12.Ne5 Rfd8 13.c5 Bc7 14.Ne4 Ne4 15.Bd3 Qg5 16.f4 Qf5; 10...a5 11.c5 Be7 12.b5 a4 13.0-0 Qa5 14.b6 Rad8 15.Rc1 Ne4 16.Ne4 de4; 10...Bc7 11.0-0 Qe7 12.Qb3 a5 13.c5 a4 14.Qc3 Ne4 15.Ne4 Be4 16.Rfe1 Bf5 ; 10...dc4 11.Nc4 Qc7 12.0-0 Nd5 13.Nd6 Qd6 14.Rc1 a6 15.Qb3 a5 16.b5 a4) 11.0-0 Ndf6 12.c5 Bc7 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Qf6 16.Ne5 Qg5; B) 10.c5 Bc7 11.Be2 Ne4 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Rad8 16.Rac1 Rfe8.

9.h3 a5 A) 10.b5 c5 (10...0-0 11.c5 Bb8 12.Be2 Ne4 13.0-0 Ndf6 14.Rc1 Qe7 15.Ne4 Ne4 16.Qa4 cb5; 10...Be7 11.c5 Ne4 12.Be2 0-0 13.0-0 Bf6 14.Qb3 Nd2 15.Nd2 e5 16.Nf3 ed4; 10...a4 11.c5 Be7 12.Be2 Qa5 13.Qc1 cb5 14.Bc3 Qc7 15.Bb5 0-0 16.0-0 Ne4) 11.Be2 0-0 12.0-0 b6 13.cd5 ed5 14.dc5 Nc5 15.Ne5 Qe7 16.Ndf3 Qe6; B) 10.Nh4 Be4 (10...Bh7 11.c5 Bc7 12.Be2 0-0 13.0-0 Ne4 14.Ne4 Be4 15.Nf3 Qf6 16.Qb3 a4) 11.c5 Be7 12.Be2 0-0 13.0-0 ab4 14.ab4 Qc7 15.Qb3 b6 16.Nhf3 Rfb8; C) 10.c5 Bc7 (10...Be7 11.Be2 0-0 12.b5 a4 13.0-0 Ne4 14.Ne4 de4 15.Nd2 Nf6 16.Qc2 cb5; 10...Bb8 11.Be2 ab4 12.ab4 Ra1 13.Qa1 0-0 14.0-0 Ne4 15.Qa4 Qc7 16.Rd1 Ndf6; 10...Bf8 11.Be2 Be7 12.0-0 0-0 13.b5 a4 14.Bc3 Qb8 15.Qc1 cb5 16.Bb5 Qc7) 11.Be2 a4 12.b5 cb5 13.0-0 0-0 14.Bb5 Ne4 15.Ne4 de4 16.Nd2 Nf6.

9.h3 Qc7 A) 10.c5 Be7 11.Be2 0-0 12.0-0 b6 13.Bc3 Rab8 14.Qa4 Rfe8 15.Rac1 bc5 16.bc5 Ne4; B) 10.Qb3 a5 (10...0-0 11.Be2 Ne4 12.Ne4 de4 13.Nd2 b6 14.c5 bc5 15.dc5 Be5 16.0-0 Rfd8; 10...Ne4 11.Ne4 de4 12.Nd2 b6 13.Qc2 Nf6 14.g4 Bg6 15.Bg2 a5 16.c5 bc5) 11.c5 Be7 12.ba5 Qa5 13.Bc3 Qa4 14.Qa4 Ra4 15.Be2 0-0 16.0-0 Rfa8; C) 10.Be2 0-0 (10...Bg6 11.Qb3 0-0 12.c5 Be7 13.0-0 Ne4 14.Ne4 Be4 15.Bd3 Bf3 16.gf3 e5; 10...Bh7 11.0-0 0-0 12.c5 Be7 13.Qb3 Ne4 14.Ne4 Be4 15.Bd3 Bf3 16.gf3 e5; 10...Rd8 11.c5 Be7 12.0-0 0-0 13.Qb3 b6 14.Bd3 Rb8 15.Bf5 ef5 16.cb6 ab6; 10...Rc8 11.c5 Be7 12.0-0 0-0 13.Qb3 Rfe8 14.a4 b6 15.cb6 ab6 16.Rfc1 Qd6 ; 10...a6 11.c5 Be7 12.Qb3 0-0 13.0-0 a5 14.b5 a4 15.Qb4 cb5 16.Qb5 Rfc8) 11.0-0 a5 12.c5 Be7 13.Qb3 b5 14.Rfe1 Rfb8 15.Bc3 a4 16.Qb2 Re8.

9.h3 Bc7 A) 10.cd5 cd5 (10...ed5 11.Be2 0-0 12.0-0 Ne4 13.Rc1 Ndf6 14.b5 Nd2 15.Nd2 Rb8 16.Qa4 Ne4) 11.Be2 0-0 12.0-0 Bd6 13.Rc1 Rc8 14.Qa4 Qb6 15.Ne5 Rc1 16.Rc1 Rd8; B) 10.c5 0-0 (10...Ne4 11.Be2 0-0 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Qf6 16.Kh1 Qg6; 10...Qe7 11.Be2 Ne4 12.0-0 Ndf6 13.Ne5 Nd2 14.Qd2 0-0 15.f3 Nd7 16.Bc3 Ne5) 11.Be2 Ne4 12.0-0 Ndf6 13.Ne4 Ne4 14.Bd3 Qe7 15.Qe2 Rfd8 16.Rfd1 Ng5; C) 10.Qb3 0-0 (10...Ne4 11.cd5 ed5 12.Bd3 0-0 13.Qc2 Ndf6 14.0-0 Nd2 15.Nd2 Bd3 16.Qd3 Bd6) 11.Bd3 Ne4 12.cd5 cd5 13.Rc1 Ndf6 14.0-0 Rc8 15.Rfd1 Qd7 16.Ne5 Be5; D) 10.Be2 0-0 (10...Ne4 11.cd5 ed5 12.0-0 0-0 13.b5 Qf6 14.Qc1 Rab8 15.a4 Rfe8 16.Rd1 Qg6; 10...Qe7 11.cd5 ed5 12.0-0 0-0 13.Rc1 Bd6 14.Nh4 Bh7 15.Nhf3 Rfc8 16.Qa4 a6; 10...Rc8 11.0-0 0-0 12.c5 Qe7 13.Qa4 a6 14.Rac1 Ne4 15.Ne4 Be4 16.Bc3 Qf6 ; 10...a5 11.c5 ab4 12.ab4 0-0 13.0-0 Qe7 14.Qb3 Ne4 15.Ne4 de4 16.Ne5 Ne5; 10...Nb6 11.0-0 0-0 12.c5 Nbd7 13.b5 Ne4 14.bc6 bc6 15.Ne4 de4 16.Ne5 Be5) 11.0-0 Qe7 12.cd5 cd5 13.Rc1 Rfc8 14.Qa4 Ne4 15.Ne4 Be4 16.Nd2 Qd6.

8.Bd3 Bd3

9.Qd3 0-0 10.Nbd2 a5 11.b5 cb5 12.c5 Be7 13.Qb5 a4 14.0-0 (14.Qb7? Rb8 15.Qc6 Qa5–+) 14...Qc7 15.Rfc1 Nb8 (15...Qc6 16.Qd3=) 16.Rab1+= Nc6 17.Ba1 (17.Rc2 Ra5 18.Qd3 Rc8+=) 17...Rfb8 18.Qb2 Bf8 19.Qc2 h6 (19...Be7 20.Rb2=) 20.Qc3 (20.e4 Ne4 21.Ne4 de4 22.Qe4 Be7+=) 20...Ng4 (20...Be7 21.Qb2=) 21.e4+= de4 22.Ne4 Qf4 23.Qc2 (23.Qd3+=) 23...Na5 (23...Be7 24.Rd1+=) 24.h3+/– f5? (better is 24...Nf6 25.Nf6 gf6 26.Qa4 b6+/–) 25.Ned2+– (25.hg4?! fe4 26.Ne5 Nb3+/–) 25...Nf6 (25...Nc6 26.g3 Qc7 27.hg4 fg4 28.Nh2+–) 26.d5! (26.Qa4?! Qc7+–) 26...Nd5 (26...ed5 27.Be5) 27.Be5 (27...Nc6 28.Bf4 Nf4 29.Re1+–) 1–0. pcmvr (2225) – cmarcolino (2515), net–chess.com, 2006.

9.Qd3 0-0 10.Nbd2 Nb6 11.c5 Na4 12.cd6 Nb2 13.Qc2 =.

9.Qd3 0-0 10.Nbd2 Rc8 11.0-0 Bb8 (11...Qe7 12.e4 de4 13.Ne4=) 12.Rac1 Re8 13.Rfe1 e5 (13...Bd6!?=) 14.de5+= Ne5 15.Ne5 Be5 16.Be5 Re5 ½–½. Bott,Hans Joachim – Trinkel,Andreas, Baden–ch JS Karlsruhe, 2003.

9.Qd3 dc4 10.Qc4 a5 11.b5 +=.

9.Qd3 dc4 10.Qc4 Nb6 11.Qe2 =.

9.Qd3 Ne4 10.0-0 0-0 11.cd5 ed5 12.Ne5 Qe7 13.Nd7 Qd7 14.f3 Nf6 15.e4 (15.Nc3 Rfe8+=) 15...de4 16.fe4 Be7 (better is 16...a5!?+=) 17.Nd2+= Rad8 18.Qf3 Qg4 19.Rae1 Rd7 20.e5 (20.Nc4 Qf3 21.gf3 Ne8=) 20...Qf3= 21.Rf3 Nd5 22.Ne4 Nc7 23.Rd1 Ne6 Attacks the backward pawn on d4 24.Rff1 (24.Kf2!?=) 24...Rfd8–/+ 25.Kh1 (25.Rd2!?–/+) 25...Nd4–+ 26.Nd6 (26.h3 Rd5–+) 26...Bd6 (26...Ne6 A) 27.Rf7?? Rd6 (27...Bd6 28.Rd7 Rd7 29.Rd6 Rd6 30.ed6+=) 28.Rg7 Ng7 29.ed6 Rd6 30.Rd6 Bd6–+; B) 27.Kg1–+) 27.Rd4 Be7 28.Rg4 Rd2 29.Bc1?? (better is 29.Bc3 Rc2 30.Rg3–+) 29...Rd1 30.Rgf4 (30.Kg1 Rf1 31.Kf1 Rd1 32.Ke2 Rc1–+) 30...Bg5 31.Rf7 (31.Kg1 Rc1 32.Rf7 Be3 33.Kh1 Re8–+) 31...Rc1 (better is 31...Bf6! 32.Kg1 Kf7 33.Be3 Rf1 34.Kf1 Be5 35.h3–+) 32.e6 (32.g3 Re8–+) 32...Rf1 33.Rf1 Re8 34.Re1 Bf6 35.g3 (35.g4 Rd8–+) 35...b5 (35...Kf8 36.Kg2–+) 36.Kg2 Bb2 37.Re3 Bd4 (37...Kf8!? 38.Rf3 Bf6 39.Rd3–+) 38.Rd3 c5 39.bc5 Bc5 40.Rd5 Ba3 41.Rb5 Re6 42.Ra5 Bb4 43.Ra7 Re2 44.Kh3 Bc5 45.Ra1 g5 (45...Kf7 46.Rf1 Ke6 47.Rh1–+) 46.Rc1 (46.Kg4 Be7 47.Rh1 Rg2–+) 46...Be3 47.Rh1 h5 48.g4 h4 49.Rf1 (49.Rb1 Rf2 50.Re1–+) 49...Bf4 50.Rf2 Re3 (50...Rf2?!) 51.Kg2 h3 52.Kf1 Rc3 53.Rb2 (53.Ra2 Rc1 54.Kf2 Bh2–+) 53...Kf7 (53...Rc1 54.Kf2–+) 54.Rb1 (54.Ra2 Ke6–+) 54...Ke6 (54...Bh2 55.Kf2–+) 55.Rb5 (55.Rb2 Rc1 56.Kf2 Rh1 57.Rb6 Kd5–+) 55...Rc1 56.Ke2 Rc2 57.Kd3 (57.Kf3–+) 57...Rh2 58.Rb6 Bd6 59.Kd4 Rg2 60.Kc3 (60.Rb1 Rg4 61.Kd3 h2 62.Re1 Kd5 63.Rh1 Bf4 64.Rh2 Bh2 65.Ke3 Bf4 66.Kd3 Rg3 67.Kc2 Kc4 68.Kb2 Rg2 69.Ka1 Kb3 70.Kb1 Rg1) 60...Rg3 61.Kc2 (61.Kc4 Rg4 62.Kb3 h2 63.Kc3 h1Q 64.Kb2 Rg2 65.Kc3 Rg3 66.Kb2 Qh2 67.Ka1 Rg1 68.Rb1 Be5) 61...Rg4 (61...h2 62.Rb7 h1Q 63.Rb2 Qf1 64.Kd2 Rd3 65.Kc2 Qd1) 62.Rb3 h2 63.Rh3 (63.Rb1 Rg1 64.Rb3 h1Q 65.Re3 Be5 66.Re1 Re1 67.Kb3 Qd5 68.Ka3 Rb1 69.Ka4 Qa2) 63...Rh4 0–1. Fornichelli,Luis – Profilo,Vicente (1700), Segundo IRT Sub, 2015.

7.d4 Be7

8.Nc3 0-0 9.c5 b6 10.Ba6 Qc7 11.Nh4 b5 (11...Bg4!? 12.f3 Ne4=) 12.Nf5+= ef5 13.a4 ba4 14.Qf3 g6 15.0-0 (15.Ra4 Ne4+/–) 15...Nb8 16.Bd3 Nbd7 17.Ra4 Ne4 18.Qe2 Rfb8 19.b5 Nc3 (19...Ndf6 20.Ra6 Nc3 21.Bc3+/–) 20.Bc3 Bd8 (better is 20...cb5!? 21.Bb5 Nc5 22.dc5 Qc5+/–) 21.bc6+– Qc6 22.Ra6 Qc8 23.Bb5 Nf8 (23...Ne5 24.Rfa1+– (24.de5?! Qc5 25.Bc6 Qc3+/–)) 24.Bc6 Rb3 (24...Rb6 25.Rb6 ab6 26.Ba8 Qa8 27.Qb5+–) 25.Ba8 Qa8 26.Rc1 Qb7 (26...Qb8 27.g3+–) 27.Qa2 Ne6 28.Ra7 Qb5 29.c6 Bb6 30.Rb7 Kg7 31.Be1 (31.Ba5 Rb2 32.Qa1 Qe2+–) 31...Nc7 32.Rb6 Qb6 33.Ba5 Qb5 (33...Qa7 34.Qb3 Qa5+–) 34.Bc7 Rb2 (34...f6 35.Bd8+–) 35.Qa3 Qe2 36.Rf1 Rd2 37.Be5 f6 38.Qe7 Kh6 39.Bf4 g5 40.Qf6 (40...Kh5 41.Qg5) 1–0. woschkat – kostaspetidis, net–chess.com, 2000.

8.c5 0-0 9.Bd3 Bd3 10.Qd3 a5 11.0-0 =.

8.c5 0-0 9.Bd3 Be4 10.Nc3 Bd3 11.Qd3 Qc7 12.Ne2 (12.0-0 Rfe8=) 12...Ne4 (12...a5 13.0-0=+) 13.Nd2 (13.0-0 b6=) 13...Nd2=+ 14.Qd2 e5 (14...a5 15.0-0=+) 15.0-0= e4 16.a4 a6 17.a5 Nf6 18.h3 Nh5 19.f4 Bh4 20.g4 (20.Kh2 Be7=) 20...Ng3 21.Ng3 Bg3 22.Qg2 Bh4 23.Bc3 Qd7 24.Be1 Be1 25.Rae1 f5 26.g5 Qf7 (26...Qe6 27.Qg3=+) 27.Kh2 Qh5 28.Rg1 Kf7 29.Qd2 Qh4 30.Rg2 Rae8 31.Reg1 Re6 32.Qe1 Qh5 33.Qe2 Qf3 34.Rf1 Qe2 35.Re2 h6 36.h4 hg5 37.hg5 Kg6 38.Kg3 Rh8 39.Rh2 (39.Kg2 Ree8=) 39...Rh2 40.Kh2 Re8 41.Kg2 Rh8 42.Kg3 Rh5 43.Rg1 (43.Rb1 Kf7=) 43...Kf7 44.Kg2 Rh4 45.Kg3 Rg4 46.Kf2 Rg1 47.Kg1 Kg6 48.Kg2 Kh5 (48...Kf7 49.Kg3=) 49.Kg3 Kg6 50.Kh4 Kh7 51.Kh5 g6 52.Kh4 Kg7 53.Kg3 ½–½. Hetfleis,Enrico – Lughofer,Norbert, Dresden, 2000.

8.c5 0-0 9.Bd3 Bg6 10.Ne5 (10.Bg6!? hg6 11.Nc3=) 10...Ne5 11.de5 Nd7 12.0-0 b6 13.cb6 Qb6 14.Bd4 c5 15.bc5 Bc5 16.Bg6 hg6 17.Nc3 Bd4 18.ed4 Qa5 19.Na4 Rfc8 20.f4 Rab8 21.Rf2 Rc4 22.Nb2 Rc7 23.Nd3 Qb6 24.Qa4 Qb3 25.Qb3 Rb3 26.Nc1 Rbc3 27.Rf1 Rb7 28.Rf2 Rbc7 29.Rf1 Nb6 30.Ne2 Rd3 31.Rfd1 Rd1 32.Rd1 Rc2 33.Nc1 (33.Kf2 Ra2+=) 33...Rc3 34.a4 Na4 35.Ne2 Rc2 36.Kf1 Re2! 37.Ke2 Nc3 38.Kd2 Nd1 39.Kd1 Kf8 40.g4 Ke7 41.h4 Kd7 42.Kd2 Kc6 43.Kc3 a5 44.g5 (44.Kb3 Kb5 45.g5 a4 46.Kb2 Kb4–+) 44...Kb5 45.h5?? (45.Kb3–+) 45...gh5 46.f5 ef5 47.g6 fg6 48.Kd3 a4 49.Ke3 g5 50.Kd3 h4 51.e6 Kc6 (51...Kc6 52.e7 Kd7–+) 0–1. Anastasiou,Dimitrios – Tsangaris,Spyridon (2020), Patron CC–ch, 2008.

8.Nbd2 Ne4 9.Be2 h6 10.cd5 ed5 11.0-0 Bd6 12.Ne4 de4 13.Ne5 Qc7 (13...0-0 14.Nc4 Nf6 15.Nd6 Qd6 16.Rc1=) 14.Nc4+= Bh2 15.Kh1 b5 (15...0-0!?+=) 16.Na5+– Nf6? (better 16...Bd6!? 17.d5 0-0 18.Nc6 Ne5 19.Bb5 Nc6 20.Bc6 Qe7+–) 17.Rc1+– Bd7 18.Bb5! Ng4 (18...cb5 19.Rc7 Pinning (19.Rc7 Deflection)) 19.Bc6 Bc6 (19...0-0 20.Ba8 Qd8+–) 20.Qg4 (20.Qg4 Qd7 21.Qg7+–; 20.Nc6?! Qd7 21.Qc2 Qf5+–) 1–0. Janek – Masur, internet, 2018.

8.Bd3 Bg4 9.Nbd2 0-0 10.0-0 Qc7 11.h3 Bh5 12.Qc2 a6 13.cd5 Nd5? (13...ed5 14.Rac1=) 14.Rac1 (better is 14.Bh7!? Kh8 15.Bd3+/–) 14...Bg6+= 15.Bg6 fg6 16.e4 N5f6? (16...Nf4 17.Rfe1+=) 17.e5 (better is 17.Qb3 Kh8 18.Qe6+–) 17...Nd5= 18.Nc4 b5 (better is 18...Nf4!?=) 19.Ne3 (better is 19.Na5+/–) 19...Rf7? (better is 19...Rac8+/–) 20.Nd5+– ed5 21.Qc6 Qc6 22.Rc6 h6 23.Rfc1 Kh7 24.R1c5 Bc5 25.dc5 Rf5 26.Rd6 Ne5? 27.Ne5 Raf8 28.f3 Re8 29.Rd5 g5 30.Kf2 Re6 31.Rd6 Ree5 32.Be5 Re5 33.Ra6 Rd5 34.Rd6 (34.Rd6 Re5 35.Rb6+–) 1–0. Fournier,Frederic – gutiliza, Active, 2007.

8.cd5 ed5 9.Nc3 0-0 10.Bd3 Bd3 11.Qd3 Re8 12.0-0 Nb6 13.Nd2 Rc8 14.Rac1 Qd6 15.f3 a6 16.Rfe1 Nh5 17.Rcd1 Rcd8 18.Rc1 Qh6 19.f4 Nf6 20.Re2 Bd6 21.Qf5 Be7 22.Qd3 Bd6 23.Qf5 Re6 24.Nf3 Rde8 25.Ne5 g6 26.Qc2 Nc4 27.Nd1 Qh4 (worse is 27...Ne5 28.de5 (28.fe5?! Bb8=) 28...Ng4 29.h3 (29.ed6?? Qh2 30.Kf1 Qh1) 29...Ne5 30.Be5 Be5 31.fe5 Re5 32.Rf2+/–; 27...Be5?! 28.de5 Nd7 29.Qd3 Nb2 30.Nb2–/+; 27...Nb2?! 28.Qb2 Ne4 29.Nf2+=) 28.Nf3 Qh5 The backward pawn on e3 becomes a target 29.Ne5 Ne4 (29...Be5!? 30.de5 Ne4–/+) 30.Nc4= dc4 31.Qc4 Nf6 32.g3 Nd5 33.Rcc2 Bf4 (33...Ne3 34.Ne3 Re3 35.Re3 Re3 36.Qf1+=) 34.gf4= b5 35.Qc5 Qf3 The pressure on the backward pawn e3 grows 36.Re1 Re3 37.Ne3? (37.Rf1 Re1 38.Rcf2 Qg4 39.Kh1 R8e2 40.Ne3 Rf2 41.Qf8 Kf8 42.Re1 Qh3 43.Nd5 Qh2) 37...Nf4 38.h4 Qg3 39.Rg2 White intends d5 39...Qe1 (worse is 39...Ng2 40.Nf1 Re1 41.Qg5 Qe3 42.Qe3 Ne3 43.Kf2 Rf1 44.Ke3–+) 40.Nf1 Ne2 (worse is 40...Ng2 41.Qc3–+) 41.Re2 Re2 (41...Qe2 42.Qc3 Re4 43.d5 Rg4 44.Ng3 Rg3 45.Qg3 Qb2 46.dc6 Qc1 47.Kf2 Qc2 48.Ke3 Qc6 49.Kf2–+) 42.d5 Qh4 43.Qe3 Re3 44.Ne3 Qg3 45.Ng2 cd5 46.Bc1 d4 47.Bd2 Qf3 48.Kh2 d3 49.Be3 Qh5 50.Kg3 Qe2 (50...Qe2–+) 0–1. Werner,Peter – Nemec,Zdenek (2045), IECG TE.2004.P.01711 email, 2004.

8.cd5 ed5 9.Bd3 Bg4 10.Nbd2 0-0 11.Qc2 h6 12.0-0 Re8 13.Rfe1 Bd6 14.h3 Bf3 15.Nf3 Ne4 16.Nd2 f5 17.Ne4 (17.Nb3 Qf6=) 17...fe4+= 18.Be2 Qg5 19.Bf1 Rf8 20.Qe2 (20.b5 Rac8 21.Qd2 cb5 22.Bb5 Nb6+=) 20...a6 21.Rac1 (21.Qc2 Rf3 22.Kh1 Rf7–/+) 21...Rf7 22.Rc3? (better is 22.Qc2–/+) 22...Raf8–+ 23.g3 (23.Rb1 Rf2 24.Qg4 Qg4 25.hg4–+) 23...Rf2 (better is 23...Bg3 24.Bg2 Bf2 25.Kh1 Be1 26.Qe1–+) 24.Qf2 0–1. Fournier,Frederic – Maika (1675), Partie evaluee, 5m + 0s, 2007.

8.cd5 ed5 9.Be2 a5 10.b5 cb5 11.Bb5 0-0 12.0-0 Ne4 13.Nc3 Nc3 14.Bc3 Rc8 15.Qd2 b6 16.Rfc1 Nf6 17.Bb2 Ne4 18.Qe2 Bg4 19.Qd1 Bh4 20.g3 Be7 21.a4 Ng5 22.Be2 Bf3 23.Bf3 Nf3 24.Qf3 Qd7 25.Qd1 Rfe8 26.Kg2 Rc1 27.Rc1 Bb4 28.Qc2 Qe6 29.Kh1 Bd6 30.Qc6 Rb8 31.Kg1 Rd8 32.e4 de4 33.d5 Qe8 34.Qb6 Bb4 35.Qc6 Qe7 36.Kf1 e3 37.Bc3 e2 38.Ke1 h5 39.Bb4 ab4 40.Rc2 Qe4 41.d6 Qe6 42.Re2 Qd6 43.Re8 Re8 44.Qe8 Qf8 45.Qf8 Kf8 46.a5 Ke7 47.a6 b3 48.Kd2 b2 49.Kc2 f5 50.Kb2 g5 51.a7 f4 52.a8Q fg3 53.hg3 Kf7 54.Qd5 Kf6 55.Kc1 Kg6 56.Qe6 Kg7 57.Qf5 g4 58.Qg5 Kf8 1–0. Machete99 – Ravana, ICC, 2002.

8.Be2 0-0 9.0-0 h6 10.Nbd2 Ne4 11.Ne4 Be4 12.Nd2 Bg6 13.f4 dc4 14.Nc4 Nb6 15.Ne5 Be4 16.Qb3 (16.Bd3 Bd3 17.Qd3 Na4+=) 16...Nd5 (16...Qd5 17.Qd5 ed5 18.Bc3+=) 17.Rac1 f6 18.Nf3 Qb6 19.Bc4 a5 20.ba5 (20.Nd2 f5=) 20...Qb3+= 21.Bb3 Ra5 22.a4 Kh8 (22...Ne3 23.Rfe1 Bf3 24.Be6 Kh8 25.Re3+=) 23.Nd2 Bg6 (23...Bg2 24.Kg2 Ne3 25.Kf3 Nf1 26.Nf1=) 24.Nc4 (better is 24.e4!? Nb4 25.Bc3+=) 24...Ra6+= 25.Kf2 Bb4 26.Rcd1 (26.Kf3 b5 27.ab5 cb5+=) 26...c5 (26...b5!? 27.ab5 cb5–/+) 27.h3 Rd8 28.g3 (28.dc5 Bc5 29.Kf3 Rb8=) 28...Rc6 (28...Be8!? 29.a5 Bb5=) 29.Kf3+= Nc3 (better is 29...Bc3!? 30.dc5 Bb2 31.Nb2 Rc5+=) 30.Bc3+/– Bc3 31.dc5 Rd1 32.Rd1 (32.Bd1?! Rc5 33.Nd6 Rc7+=) 32...Rc5 33.Rd8 Kh7 34.Nd6 Ba5 35.Nb7 Bd8 36.Nc5 (36.Nd8?! Rc3 37.Be6 Be8=) 36...e5 37.Bd5 ef4 38.ef4 Be8 39.Ne6 Ba5 40.Bb3 g5 41.Nd4 gf4 42.gf4 Kg6 43.Bc2 Kf7 44.Kg4 Bd7 45.f5 Kg7 46.Ne6 Kf7 47.Nf4 Ke7 48.Nd5 Kf7 49.h4 Kg7 50.Nf4 Bd2 51.Nh5 Kf7 52.Ng3 Kg7 53.Bb3 Bc6? 54.Nh5+– Kf8 55.Nf6 Kg7 56.Nh5 Kf8 57.Ng3 Kg7 58.Nh5 Kf8 59.Bc2 Kf7 60.Ng3 Bd7 61.Ne4 Bb4 62.Bb3 Kg7 63.Kf4 Be7 64.h5 Be8 65.Bd1 Bd7 66.Ke5 White prepares the advance f6 66...Bd8 67.f6 Kf7 68.Nd6 Kf8 69.Nb5 Bb5 70.ab5 Kf7 71.Bb3 Kf8 72.Ke6 Bb6 73.Bc2 Be3 1–0. Otje – Freno, playchess.de, 2005.

8.Be2 a5 9.Qb3 (better 9.c5=+) 9...dc4 10.Bc4 b5 11.Be2 ab4 12.ab4 Ra1 13.Ba1 Nd5 14.0-0 Nb4 15.Nbd2 Nf6 16.Bb2 Qd5 17.Qd5 ed5 18.Rc1 Bd3 19.Ba3 Be2 0–1. Bishop,David – Steadman,Michael, NZL NZCCA Handicap, 1993.

8.Be2 a5 9.Qb3 (better 9.c5=+) 9...c5?? (9...dc4 10.Bc4 ab4 11.ab4–/+) 10.b5 (better 10.bc5 b6 11.c6+–) 10...0-0 11.Nbd2 Bd3?? (better 11...cd4 12.Bd4 Nc5 13.Bc5 Bc5 14.cd5 a4= (worse 14...Nd5 15.e4+–)) 12.Kf1 (better 12.Qd3 cd4 13.Qd4+–) 12…Be2=+ (12...Be2 13.Ke2 Bd6=+) 0–1. Bishop,David – Steadman,Michael, NZCCA Handicap NZL, 1993.

8.Nbd2 0-0

9.Qb3 Ne4 10.Rc1 Nd2 (10...a5 11.cd5 Nd2 12.Nd2 ab4 13.ab4 cd5 14.Be2=+) 11.Nd2 f6 (11...Nf6 12.Be2=) 12.Bd3 Bd3 13.Qd3 Rc8 14.0-0 Re8 (14...Bd6 15.f4=) 15.e4+= Bf8 16.f4 Qb6 17.c5 Qc7 18.Nf3 (18.f5!?+/-) 18...Qf4= 19.Ne5 Ne5 20.de5 (20.Rf4?? Nd3 21.Rf2 Nc1 22.Bc1 de4-+) 20...Qe4 21.Qe4 de4 22.ef6 gf6 23.Bf6 Bg7 24.Bg7 Kg7 25.Rfe1 Rcd8 26.Re4 Rd3 (26...e5 27.Rg4 Kf6 28.Rf1 Ke6 29.Rh4=) 27.a4 (27.Rce1 Kf6=) 27...Rd2 (27...e5 28.g4=) 28.Rce1+= Rf8 (28...Rb2 29.h3=) 29.h3 (29.Re6!? Rff2 30.Re7 Kf6 31.R1e6 (worse 31.Rb7 Rg2 32.Kh1 Rh2 33.Kg1 a5=+) 31...Kf5 32.g4 Kg4 33.Rh7 Rg2 34.Kh1+/-) 29...Rff2= 30.Rg4 (30.Re6 Rg2 31.Kh1 Rh2 32.Kg1 Rh3 33.Re7 Kf6 34.R1e6 Kf5 35.Re5 Kf4 36.Re4 Kg5 37.R4e5 Kg4 38.Re4 Kf5 39.R4e5 Kg6 40.R5e6 Kf5 41.Re5=) 30...Kf6 31.Kh2 h5 32.Rg8 Rd4?? (32...Kf7 33.Rg5=) 33.Rb1 (better 33.Rf8 Ke7 34.Rf2 Rb4 35.Rfe2 Ra4 36.Re6 Kf7 37.Rh6+-) 33...Rff4=+ 34.Rf8 Ke7 (34...Ke5 35.Rh8 h4 36.Rh5 Kf6 37.Rh6 Kg5 38.Re6 Rb4 39.Re5 Kf6 40.Rbe1-/+) 35.Rf4 Rf4 36.Kg3 (36.g4 hg4 37.Kg3 e5 38.hg4 Kf6=) 36...Rc4 (36...e5 37.Kh2=+) 37.Kf3 Kf6 38.g4 (better 38.a5!?=) 38...hg4-/+ 39.hg4 Kg5 40.Re1 (40.a5 e5-/+) 40...Rg4 (40...Rf4 41.Ke3 Rb4 42.Kd3 Ra4 43.Re6 Kg4 44.Re7 Ra3 45.Ke4-+) 41.Re5 (41.Re6 Rb4 42.Re4 Re4 43.Ke4-+) 41...Kf6-+ 42.Re6?? (42.Re4 Re4 43.Ke4-+) 42...Ke6 43.Kg4 Kd5 44.Kf4 Kc4 45.Ke5 Kb4 46.Kd6 Ka4 47.Kc7 Kb5 48.Kb7 a5 49.Ka7 a4 (49...a4 50.Kb7 Kc5 51.Kc7 a3 52.Kc8 Kd6 53.Kb7 a2 54.Kb8 a1Q 55.Kb7 Qb1 56.Ka6 Kc7 57.Ka5 Qb5) 0-1. zembelek (2025) - taulajoe (2055), Rated Blitz game, lichess.org, 2014.

9.Be2 a5 10.b5 =.

9.Be2 Rc8 10.0-0 (10.c5 Qc7=) 10...Ne4 11.Re1 (11.Ne4 Be4 12.c5 a5=) 11...Ndf6 (11...dc4 12.Ne4 Be4 13.Nd2=) 12.Qb3 (12.c5 Nd2 13.Nd2 a5+=) 12...Qc7 (12...Nd2 13.Nd2 Qd7 14.Nf3=) 13.Rac1 (13.Ne4 Ne4 14.Bd3 Rfd8=) 13...Ng4 14.Ne4 Be4 15.g3 (15.Ne5 Ne5 16.de5 Rfd8=) 15...Nf6 16.c5 (16.Ne5 Nd7=) 16...Nd7 17.Ne5 (17.Nd2 Bf5=) 17...Bf6 (17...Ne5 18.de5 b6 19.Bd4=) 18.Nd7 Qd7 19.b5 (19.f3 Bg6=) 19...Rfe8 (19...Rfd8 20.f3 Bf5 21.Bf1=) 20.a4 (20.Qa4 Ra8=) 20...e5 21.Bd3 Bf3 22.Bf1 Qg4 23.h3 Qg6 24.Bc3 h5 25.Bg2 Bg2=+ 26.Kg2 h4 27.Qb1 e4 28.Qc2 Re6 29.Kh2 Bd8 30.Rg1 Bc7 31.Qe2 Rf6 32.Rcf1 Rf3–/+ 33.Be1 Qg5 34.bc6 hg3 35.fg3 Re3 36.Qf2 Rf3 37.Qb2 bc6 38.Qb7 Qf5 39.Rf3 ef3 40.Bf2 Kh7 41.Qa7?? Qc2–+ 42.Rf1 Qe2 43.Kg1 Bg3! 44.Qf7 Bf2 45.Rf2 Qe1 (46.Rf1 Qg3 47.Kh1 Qg2) 0–1. Schmitt,Mathieu (1870) – Pokee,Anne_Josephe (1995), Besancon FRA Open Championship, 2006.

9.Be2 Ne4 10.Ne4 Be4 11.0-0 Bf6 12.Qb3 Re8 13.Ne5 (13.Rfc1 Nb6=) 13...Be5=+ 14.de5 Qc7 (14...Qg5 15.f3 dc4 16.Bc4=) 15.f3 Bg6 16.cd5 ed5 Now all is on e5 17.Bd4 Ne5 18.f4 Nd7? (better 18...Nc4 19.f5 Nd2=) 19.f5+– 1–0. Janek – Sbjnjlt, internet, 2019.

9.Be2 h6 10.0-0 Rc8 11.Qb3 Ne4 12.Ne4 Be4 13.Rfd1 dc4 14.Qc4 (14.Bc4 Bf3 15.gf3 Nb6=) 14...Nb6+= 15.Qc1 Qd5 16.Ne5 Bg2 17.f3 Bh3 18.a4 (18.e4 Qd6+=) 18...Qd8 19.e4 Nd7 20.a5 (better is 20.Qe3!? Ne5 21.de5+=) 20...Bb4–+ 21.Ba3 (21.a6 b5 22.Nd7 Qd7–/+) 21...Ba3 (21...c5!? 22.Nd7 cd4 23.Qf4 Ba3 24.Nf8 Bf8 25.Bf1 Bf1 26.Kf1–+) 22.Ra3 Ne5 23.de5 Qe7 (better is 23...Qh4–+) 24.f4= Qh4 25.Rg3 f5 (25...h5 26.Rd7=) 26.Qe3 (better is 26.ef6!? Qf6 27.Rd7+–) 26...Bg4= 27.Rd7 Rcd8 28.Rb7 Rf7 (better is 28...Kh8 29.Kh1 Rb8 30.Qa7 Rb7 31.Qb7 Rd8 32.ef5 ef5 33.Bg4 fg4=) 29.Qa7?? (29.Rf7 Kf7 30.Qa7 Ke8 31.Bg4 fg4=) 29...Rdf8 (better is 29...Rb7 30.Qb7 Rd2–+) 30.ef5 Bf5 31.Rg7?? (better is 31.Rf7 Rf7 32.Qd4+=) 31...Kh8 (better is 31...Kg7! 32.Rf7 Rf7–+) 32.Rgf7 (32.Rbf7!? Rf7 33.Rf7 Qd8+–) 32...Qe1 33.Bf1 (33.Bf1 Rg8 34.Rg7 Rg7 35.Rg7+–) 1–0. Jove Grau,Lluis (2075) – Beltran Sanz,Felix (1720), Benidorm ESP, 2014.

9.Be2 h6 10.0-0 Bd6 11.c5 Bb8 12.a4 Qc7 13.b5 (13.a5 Ne4=) 13...Be4 (13...Rd8 14.h3=) 14.g3 (14.Ne4 de4 15.Ne5 Ne5 16.de5 Nd7=) 14...Bf5= 15.a5 Bh3 (15...cb5 16.Bb5 a6 17.Be2=+) 16.b6 Qd8 (16...ab6 17.ab6 Ra1 18.bc7 Rd1 19.cb8Q (< 19.cb8N Rd2 20.Nd2 Bf1 21.Nd7 Be2 22.Nf8 Kf8–/+) 19...Rf1 20.Bf1 Rb8 21.Bh3=) 17.Re1 Ng4 (17...Bf5 18.Bc3=) 18.Nh4 (18.Qc2 Ngf6+=) 18...Ngf6 (18...Qg5 19.Qb3=) 19.Bf1 (19.Bd3 Re8=) 19...Bg4 (19...Bf1 20.Rf1 ab6 21.ab6 Ra1 22.Qa1=) 20.f3 Bh5 21.Bg2 (21.Qc2 e5+=) 21...g5 (21...ab6 22.ab6 Ra1 23.Ba1=) 22.g4 Bg6 (22...Bg4 23.fg4 gh4 24.Qf3+=) 23.Ng6+= fg6 24.Qc2 Kg7 25.h3 (25.Reb1 ab6 26.ab6 Ra1 27.Ra1 e5+=) 25...h5 (25...e5 26.a6 ab6 27.cb6 Qb6 28.Reb1 Ra6 29.Ba3 Ra3 30.Ra3=+) 26.e4 (26.a6 Qc8+=) 26...hg4 (26...Bg3!? 27.e5 Nh7=) 27.fg4 Rh8 (27...Bf4 28.e5 Ne8 29.Rf1+/–) 28.ed5 (28.e5 Ng8+–) 28...Nd5 (28...ed5 29.a6 ab6 30.ab7 Ra1 31.Ra1 Qc7=) 29.Re6+– Nf4? (better is 29...Nf8 30.Ree1 ab6 31.ab6 Ra1 32.Ba1 Bg3+–) 30.d5 Kg8 (30...Kh7 31.dc6 ab6+–) 31.Rg6 Ng6 (31...Kf7 32.Qf5 Ke8 33.Bh8 Ne2 34.Kf2 Qe7+–) 32.Qg6 Kf8 33.Qg7 Ke8 34.Qh8 Ke7 35.d6 Bd6 36.cd6 Kd6 37.Ne4 Ke6+– 38.Qh6 Kf7 39.Ng5 Ke7 40.Re1 Ne5 41.Qe6 Kf8 42.Qe5 Qg5 43.Qg5 (43...ab6 44.Qg7) 1–0. Fredek (2090) – Guest980801, Freundschaftspartie, 5m + 0s, 2005.

7.d4 h6

8.Nc3 a5 9.b5 Be7 10.Bd3 0-0 (10...Bd3 11.Qd3 Nb6 12.c5=) 11.Bf5+= ef5 12.bc6 bc6 13.Qe2 Ne4 14.0-0 Nc3 15.Bc3 Rb8 16.cd5 cd5 17.Rab1 Nf6 18.Rb5 Exerts pressure on the isolated pawn (18.Rb8 Qb8 19.Ba5 Qb3+=) 18...Rb5 19.Qb5 Ba3 20.Ba5 Qa8 (20...Qd7 21.Qd7 Nd7 22.Rb1=) 21.Bd2 (21.Bc7!?+=) 21...Bd6= 22.Qd3 Qb8 (22...Ne4 23.Nh4 Qa2 24.Be1=+) 23.Rc1 (23.Qf5!? Qc8 24.Qc8 Rc8 25.Rb1+=) 23...Ne4 24.h3 Qd8 25.Rb1 Bb8 (25...Qf6!?=) 26.Rb5+= Qd6?? (better 26...Re8+=) 27.Bb4+- Qd8 28.Bf8 Qf8 29.Qb3 Bd6 30.Qd5 (better 30.Rd5 Qa8 31.g3+-) 30...Be7? (30...Nc3 31.Qf5 g6 32.Qd7 Nb5 33.Qb5+-) 31.Qf5 (31.Ra5 Nf6 32.Qc6 Bd8+-) 31...Nf6 (31...Nd6 32.Qd7 Nb5 33.Qb5 Qa8+-) 32.Qb1 Bd8 33.Rb8 Ne4 (33...Nd7 34.Rb7 Qd6+-) 34.Qe4 Be7 35.Rf8 Bf8 36.d5 (36.Qe8 Kh7 37.Qf8 h5 38.Ng5 Kh6 39.f4 Kg6 40.Qf7 Kh6 41.Qf5 h4 42.Nf7) 36...g6 37.d6! Kg7 (37...Bd6 38.Qd5 Decoy) 38.Qd3 (38.d7 Be7 39.Qe7 h5 40.d8Q Kh7 41.Qf7 Kh6 42.Qdf8) 38...Be7 39.Ne5 (39.de7 h5 40.Qd4 f6 41.e8Q g5 42.Qe7 Kg6 43.Qdf6) 39...Bd8 (39...Bh4 40.Qd5 Bf2 41.Kf2 Kf6 42.d7 h5 43.d8Q Kg7 44.Qf7 Kh6 45.Qg6) 40.Qd4 (40.Qd4 Bf6 41.Qd5 Be5 42.Qe5 Kg8 43.d7 Kh7 44.d8Q g5 45.Qdf6 g4 46.Qf7; 40.Qd5 Kf6 41.f4 Kg7 42.Qf7 Kh8 43.Ng6) 1-0. opperwezen (2800) - cilginkurbag (2230), lichess.org, 2018.

8.Nbd2 Be7 9.Rc1 0-0 10.Qb3 Ne4 11.Bd3 (11.Be2 Nd2 12.Nd2 Bd6=) 11...Ndf6 12.h3 Re8 (12...a5 13.b5=+) 13.0-0= Rc8 (13...a5 14.Rfd1=+) 14.Rfe1 a6 15.Nf1 (15.c5 Nd2 16.Nd2 Bd3 17.Qd3 a5=) 15...b5 16.cb5 cb5 17.Ne5 Qb6 18.Rc8 Rc8 19.Rc1 Rc7 20.Rc7 Qc7 21.f3 Nd6 22.Bf5 Nf5 23.Kf2 Bd6 24.g4 (24.Qc3 Qb7=) 24...Ne7=+ 25.Nd3 Nd7 26.Nc5 Nb6 (26...Qc6 27.Kg1=+) 27.Na6= Qc6 (27...Qd8 28.Nc5=) 28.Nc5 Nc4 29.Bc1 Nc8 30.Nd2 N8b6 31.Nc4 dc4 (31...Nc4 32.e4=) 32.Qc2 e5 33.Qe4 Nd5 34.de5 Bc5 35.bc5 Qc5 36.e6 fe6 (36...f6 37.Qg6+=) 37.Qe6 Kh7 38.Qf5 Kh8 39.Kg3 (39.f4 Qc6+=) 39...c3 40.Qe5 c2 (better 40...Kg8+=) 41.f4 White prepares the advance g5 (better 41.Bb2!? Qc7 42.Qc7 Nc7 43.Kf2+-) 41...Qc4 (41...Nc3 42.Qc5 Ne4 43.Kf3 Nc5 44.e4=) 42.Bb2 Nf6 43.g5 hg5 44.fg5 Ne4 45.Kf3 Nd2 46.Kf2?? (better 46.Kg3 Qh4!? 47.Kg2 Qe4 48.Qe4 Ne4 49.Kf1 Nd2 50.Ke2=) 46...Qf7 (better 46...Qf1 47.Kg3 Qg1 48.Kf4 Qh2 49.Kf5 Qe5 50.Be5 c1Q-+) 47.Ke2+/- Nc4 48.Bc1?? (better 48.Qb5 Nb2 49.Qb2 Qh5 50.Kf2 Qh3 51.Qc1 Qh2 52.Ke1=) 48...Ne5-+ 49.Kd2 Qc7 (49...Qd5 50.Kc2 Qd3 51.Kb2 Nc4 52.Ka1 Qc2 53.a4 Qc1 54.Ka2 Qb2) 50.Bb2 Nf3 (50...Qc4 51.Ke1 Nd3 52.Kf1 Qe4 53.Kg1 Qe3 54.Kh2 Qf2 55.Kh1 Nb2 56.a4 c1Q) 51.Kc1 Kh7 52.h4 Kg6 (52...Qc4 53.g6 Kg8 54.a4 Qd3 55.Ba3 Qd2 56.Kb2 c1Q 57.Kb3 Qcc3) 53.Bd4 Kh5 54.Bb2 (54.Bf6 Nd2! 55.Ba1 Nb3 56.Kb2 c1Q 57.Ka2 Qa1 58.Kb3 Qcc3) 54...Kh4 (54...Qc4 55.a4 Qd3 56.Ba3 Qd2 57.Kb2 c1Q 58.Kb3 Qcc3) 55.Bg7 Kg5 (55...Nd2 56.Bh8 Nb3 57.Kb2 c1Q 58.Ka2 Q7c2 59.Bb2 Q1b2) 56.Be5 Qe5 (56...Ne5 57.e4 Qc3 58.a4 Nd3) 57.Kc2 Qe3 58.a4 (58.Kb1 Qc3 59.Ka2 Nd2 60.a4 Qb3 61.Ka1 Qb1) 58...Qb6 (58...Nd4 59.Kb2 Qb3 60.Kc1 Qc2) 59.ab5 (59.Kc3 Qd4 60.Kc2 Qd2 61.Kb1 ba4 62.Ka1 a3 63.Kb1 Qb2) 59...Qb5 (59...Qe3 60.b6 Nd4 61.Kd1 Qd3 62.Ke1 Qe2) 60.Kc3 Kf4 61.Kc2 Ne5 (61...Nd4 62.Kd2 Qc4 63.Kd1 Qd3 64.Ke1 Qe2) 62.Kc3 Qd3 (62...Ke3 63.Kc2 Qc4 64.Kb1 Qd3 65.Kc1 Qc3 66.Kb1 Nd3 67.Ka2 Qb2) 63.Kb4 Ke3 (63...Qc4 64

7.Nd4 Bg6

8.b5 c5 (8...e5 9.Nf3 Bh5 10.cd5 cd5 11.Be2=+) 9.Nf3 Bd6 10.cd5 ed5 11.Be2 0-0 12.0-0 Re8 (12...Qc7 13.d3=+) 13.Nh4= Be5 (13...Qc7 14.f4=) 14.d4 cd4 15.Ng6 hg6 (15...d3 16.Ne5 de2 17.Qe2 Ne5 18.Nd2=) 16.Bd4+= Rc8 (16...Bd4 17.Qd4 Qb6 18.Rd1+=) 17.Be5 Ne5 18.Qd4 (18.Qa4 Qb6+=) 18...Qb6 (18...Qa5 19.Rd1=) 19.Qb6+= ab6 20.Ra2 Ne4 21.Rd1 Red8 (21...Rc5 22.a4+=) 22.Rb2 (22.f3 Nf6+/–) 22...Nc4+= 23.Rc2 (23.Rb4 Kf8+=) 23...Kf8 (23...Nf2 24.Rd4 Ne4 25.Bc4 dc4 26.Re4 Rd1 27.Kf2 Rb1 28.Rec4 Rc4 29.Rc4 Rb5 30.Rc8 Kh7 31.Rc7=) 24.h3 Ke7 25.Rdc1 Ncd6 26.Nc3 Nc3+= 27.Rc3 Rc3 28.Rc3 Rc8 29.Rc8+/– Nc8 30.Bg4 f5 31.Bf3 Kd6 32.h4 Kc5= 33.a4 Nd6 34.Kf1 Ne4=+ 35.Bd1 Kb4 36.Ke1 Nc3–/+ 37.Bc2 Na4 38.g4 fg4 39.Bg6 Kb5 40.Bf5 Kc4 41.Bg4 b5 42.Be2 Kc5 43.Bd1 Nc3–+ 44.Bb3 b4 45.Kd2–/+ d4 46.Kd3=+ de3 47.fe3 Nd5 48.Ke4 Nc7 49.Kf5 Kd6 50.Kg6 Ne6 51.Kf7 Nc5=+ 52.Bd1 b3 53.Kg7 b2 54.Bc2 Ne6 55.Kf6 Nf8? 56.h5+– b6? 57.Bb1 Kd5?? 58.h6 b5 59.h7 Nh7 60.Bh7 Kc4 61.Bb1 b4 62.e4 Kd4 63.e5 b3 64.e6 Kc3 65.e7 Kd2 66.e8Q Kc3 67.Qa4 Kd2 68.Qb3 Ke2 69.Qb2 Ke3 70.Qc3 Ke2 71.Be4 Kf2 72.Qd2 Kg3 73.Qe3 Kh2 74.Qf2 (74...Kh3 75.Bf5) 1–0. meru – "Romanishin,Oleg", ICS, 1997.

8.cd5 Nd5 9.Nc3 N5f6=.

8.cd5 cd5 9.Be2 a6 (9...e5 10.Nf3 Bd6 11.Nc3=) 10.f4 Bd6 11.Nc3 0-0 12.0-0 Rc8 13.Rc1 Ne4 (13...Re8 14.f5 ef5 15.Nf5=) 14.Ne4 (14.f5 Bf5 15.Nf5 ef5 16.Nd5 Qh4=) 14...Be4 (14...Rc1 15.Qc1 de4 16.Nb3=) 15.Rc8+= Qc8 16.d3 Bg6 17.Qd2 Qd8 18.Bf3 Re8 (18...Qh4 19.g3 Qh3 20.Bg2+=) 19.g3 (19.f5 ef5 20.Bd5 Nf6 21.Bb7 Ng4+=) 19...Nf6= 20.Bg2 e5 21.Nb3 Qc8 22.Nc1 (22.fe5 Be5 23.d4 Bd6=) 22...Bf5 23.Ne2 h5 (23...Bh3 24.fe5 Be5 25.Be5 Re5 26.Rc1=) 24.fe5+= Be5 25.Be5 Re5 26.Nf4 Qd7 27.Qc1 (27.h3 d4 28.e4 Be6+=) 27...Re8 (27...h4 28.gh4 d4 29.e4+=) 28.Qd2 (28.Qc5 Be6+=) 28...Re5= 29.Qc1 ½-½. marekt – Kusamakura, ChessWorld.net, 2023.

7.cd5 cd5

8.Nc3 a5 9.ba5 Ra5 =.

8.Nc3 a6 9.Be2 Be7 10.Nh4 Bg6 11.0-0 0-0 12.Ng6 hg6 13.Rc1 Rc8 14.Qb3 Bd6 15.Rc2 Re8 16.Rfc1 Nb6 17.Na4 Rc2 18.Rc2 Na4 19.Qa4 Re7 20.g3 Rc7 21.Kg2 Rc2 22.Qc2 Nd7 23.e4 de4 24.Qe4 Qc7 25.Bf3 b6 26.Qa8 Nb8 27.Bc3 Kh7 28.h4 f5 (28...Kg8 29.Qb7+=) 29.Be2 (29.Qb7 a5+–) 29...b5+= 30.Bf3 Qb6 (30...Qe7 31.Qb7+–) 31.Qb7+– The mate threat is Qxg7 31...Qb7 32.Bb7 f4 (32...Bc7 33.f4 Kg8 34.Kf3+–) 33.Bc8 (33.gf4 Bf4 34.Kf3 Bd6+–) 33...e5 (33...fg3 34.fg3 e5 35.Kf3+–) 34.Kf3 fg3 35.fg3 e4 36.Ke4 Bg3 37.Be5 (37.Be5 Be5 38.Ke5 Nc6 39.Kd6+–) 1–0. pcmvr – mgilbert, net–chess.com, 2020.

8.d4 Rc8 9.Nc3 a5 A) 10.Qa4 ab4 (10...Ra8 11.ba5 Ra5 12.Qb3 b6 13.Rc1 Be7 14.Ne5 Ne5 15.de5=) 11.ab4 Qe7 12.Qa8 Kd8 13.Qa5 b6 14.Qb5 Qb4 15.Ra4–/+; B) 10.b5 Nb6 (10...Ne4 11.Ne4 Be4 12.Bd3 Bd3 13.Qd3 Nb6 14.0-0 Nc4 15.Rab1+=; 10...Be7 11.Be2 Ne4 12.Ne4 Be4 13.Rc1 Rc1 14.Qc1 0-0 15.0-0=; 10...Bd6 11.Be2 Ne4 12.Ne4 Be4 13.Rc1 Rc1 14.Qc1 0-0 15.Qd2+=) 11.Ne5 Nfd7 12.Nd7 Qd7 13.h4 h5 14.Rc1 Be7 15.Qf3+=; C) 10.Qb3 ab4 (10...Bd6 11.Bb5 0-0 12.ba5 Qa5 13.Nh4 Bg6 14.Ng6 fg6 15.Rc1=; 10...Be7 11.Bb5 0-0 12.Nh4 Bg4 13.ba5 Ne4 14.Nf3 Ndf6 15.a6=; 10...b6 11.Ba6 Ra8 12.Be2 ab4 13.ab4 Ra1 14.Ba1 Qe7 15.b5=) 11.ab4 Bd6 12.Nb5 Be7 13.Ra7 Qb6 14.Be2 0-0 15.Nh4+=.

8.d4 Rc8 9.Nc3 Bd6 10.Be2 (10.Rc1 0-0 (10...a6 11.Be2 0-0 12.Nh4 Be4 13.0-0 Nb6 14.Ne4 Ne4 15.Nf3+=; 10...Be7 11.Qa4 a6 12.Nh4 Bg4 13.h3 Bh5 14.Bd3 0-0 15.g4=) 11.Be2 Ne4 12.0-0 Nc3 13.Bc3 Nb6 14.Re1 Qf6 15.Qb3+=; 10.Nh4 Bg4 11.Nf3 a5 12.Qa4 ab4 13.Nb5 Be7 14.ab4 Bf5 15.Qb3+=) 10...0-0 (10...a5 11.Qb3 0-0 12.ba5 Qa5 13.Qb5 Qd8 14.0-0 Rc6 15.Qb3+=; 10...Ne4 11.Rc1 0-0 12.0-0 Nc3 13.Bc3 Nb6 14.Re1 Qe7 15.Qb3+=; 10...a6 11.Nh4 Be4 12.Rc1 0-0 13.0-0 Nb6 14.Ne4 Ne4 15.Nf3+=) 11.Rc1 (11.0-0 a5 12.Qb3 Qb6 13.Na4 Qc6 14.Nc3 Nb6 15.Ne5=) 11...Ne4 12.Na4 (12.0-0!?+= Nc3 13.Bc3 Nb6 14.Re1 Qe7 15.Qb3+=) 12...Qf6 (12...Rc1 13.Qc1 Qf6 14.Bb5 Qe7 15.Nc5+=) 13.0-0 Qh6 (13...Rc1 14.Qc1 Qh6 (14...Qg6 15.Nc5=) 15.Nc5+=) 14.g3 (14.Nc5!? Rc7 15.Nd7= (15.h3=)) 14...Bh3 15.Re1 Ndf6 16.Ne5?? (better is 16.Nd2 Bf5 17.Ne4 Ne4 18.Rf1–/+) 16...Nf2–+ 17.Qb3 (17.Kf2 Ne4 18.Kg1 Qe3 19.Kh1 Nf2 20.Kg1 Ng4 21.Kh1 Qf2 22.Rc8 Qh2) 17...Be5 18.de5 N6e4 19.Rc2 (better is 19.Rc8 Rc8 20.Rc1–+) 19...Rc2 20.Qc2 Bf5 (20...Qe3?! 21.Bc1 Qd4 22.Bb2=) 21.Bf3 (21.Bf1 Ng4 22.Qg2 Ne3 23.Qe2 Nf1 24.Qf1–+) 21...Nh3 22.Kg2 Neg5 23.Qd2 (23.e4 Nf3 24.Kf3 Ng5 25.Ke2 Ne4 26.Rh1 Ng3 27.hg3 Qh1 28.Qc1 Qg2 29.Ke3–+) 23...Nf3 (23...Nf3 24.Qe2 Nhg1–+) 0–1. pzn2pawn (1850) – bluestreak (1935), redhotpawn.com, 2016.

8.d4 Rc8 9.Nc3 Ne4 A) 10.Rc1 Nc3 (10...a5 11.Bb5 Nd6 12.Bd7 Kd7 13.0-0 ab4 14.ab4 Ke8 15.Qa4=; 10...Be7 11.Bb5 Nc3 12.Bc3 a6 13.Be2 0-0 14.0-0 Nb6 15.Ne5=; 10...a6 11.Be2 a5 12.Bb5 Nd6 13.Bd7 Kd7 14.0-0 ab4 15.ab4=) 11.Bc3 Bd6 12.Qa4 a6 13.b5 Nb6 14.Qa5 Nc4 15.Qd8+=; B) 10.Ne4 Be4 11.Bd3 Bd3 12.Qd3 Bd6 13.e4 Nb6 14.e5 Be7 15.0-0+=.

8.d4 Rc8 9.Nc3 Be7 10.Be2 (10.Bd3 Bd3 11.Qd3 Nb6 12.Qb5 Nfd7 13.Nd2 a6 14.Qd3 Bd6 15.0-0+=; 10.Qa4 a6 11.Nh4 Bg4 12.h3 Rc3 13.Bc3 Ne4 14.hg4 Bh4 15.Rh4–/+) 10...Ne4 (10...0-0 11.0-0 a5 12.Qb3 Qb6 13.Nh4 Bg4 14.f3 Bh5 15.g4=; 10...a5 11.Qa4 ab4 12.ab4 0-0 13.0-0 Nb6 14.Qb3 Nc4 15.Ra4=; 10...a6 11.0-0 0-0 12.Nh4 Bg4 13.Bg4 Ng4 14.Ng6 hg6 15.Qg4=) 11.Ne4 Be4 12.0-0 Rc2 13.Rb1 0-0 14.Nd2 Bg6 15.e4 +=.

8.Be2 Bd6 9.Nc3 0-0 10.0-0 Rc8 (10...a5 11.Nb5 Be7 12.Qb3=) 11.d3 (11.Nh4 Be4=) 11...h6 (11...e5 12.Rc1=) 12.e4 Bg4 (worse is 12...de4 13.de4 Rc3 14.ef5+/–) 13.Nd4 Be2 14.Qe2 de4 15.Ne4 Qe7 16.Nd6 Qd6 17.Rac1 Nd5 18.Nf3 (18.Rc4 N5b6 19.Nb5 Qd5=) 18...Rfd8 19.Ne5 Rc1 20.Rc1 Ne5 21.Be5 Qd7 22.h3 (22.Qe4 f6 23.Bb2 b5=) 22...f6+= 23.Bg3 e5 24.Qe4 Nb6 25.Kh2 Qd3 26.Qb7 Rd7 (26...Qa3? 27.Rc7 Rd7 28.Rd7 Nd7 29.Qd7 Qb4 30.Qa7+–) 27.Rc7 Rc7 28.Qc7 Qa3 29.f4 ef4 30.Qf4 Qb3 31.Qd4 Qe6 32.Bc7 Kf7 33.b5 h5 34.Qc5 g6 35.Bb8 Qd7 36.Qc6 (36.Bc7 Nc8+=) 36...Qc6–/+ 37.bc6 Nc8 38.g4 hg4 39.hg4 Ke6 40.Bg3 (40.Kg3 Kd5–+) 40...Ne7 41.c7 Kd7 42.Be1 (42.Kg2 Nd5–+) 42...Nd5 43.Kg2 Nc7 44.Kf3 Ke6 45.Ke4 Nb5 46.Kd3 Nd6 47.Bc3 g5 48.Bd4 Nf7 (48...a6 49.Bc3–+) 49.Ba7 Ne5 50.Ke2 Ng4 51.Kf3 f5 52.Bc5 (52.Kg3 Nf6–+) 52...Ne5 53.Kg2 f4 54.Bd4 g4 55.Bf2 Nc6 56.Bc5 Ke5 57.Bf2 Nd4 0–1. Pcmvr – El_Tiburon, playchess.de, 2005.

8.Be2 Bd6 9.Nc3 a5 =.

8.Be2 Bd6 9.d3 e5 10.Nc3 0-0 11.0-0 h6 (11...Rc8 12.Rc1=) 12.e4 (12.Rc1 a6=) 12...Be6 (12...de4? 13.de4 Qb8 14.ef5+–) 13.Rc1 d4 14.Nb5 Bb8 15.Qc2 Ne8 16.a4 Qb6 (16...Qe7 17.Qd2+=) 17.Nd2 (17.Qd2 Qa6 18.Bd1 Nd6=) 17...a6+= 18.Na3 Qb4 19.Nac4 Qe7 20.Ba3 Nd6 21.a5 Rc8 22.Qb1 (22.Qb2 Bc4 23.Nc4 Qe6+=) 22...Bc4 (22...Ra7 23.f4 ef4 24.Qb4+=) 23.Nc4 Qe6 24.Bd6 Bd6 25.Qb7 Bc5 (25...Be7!?=) 26.Ne5+= Ne5 A deflection (26...Qe5 Deflection from d7 27.Qd7) 27.Rc5 Eliminates the defender c5 27...Rc5 Theme: Deflection from a8 28.Qa8 Rc8 29.Qa7 Rc2 30.Bd1 Rd2 31.Qd4 Rd3 (31...Nd3? 32.Qc3 Rd1 33.Rd1+–) 32.Qb2 Qd6 33.Bb3 Ng4 Do you see the mate threat? 34.g3 Ne5 35.Bd5 Qf6 (35...Nf3 36.Kh1 Rd5 37.ed5 Qd5 38.Qb8 Kh7 39.Qb1 g6=) 36.Qb6 Nf3 37.Kg2 Nh4 38.Kh3 (38.gh4?! Qf3 39.Kg1 Qg4 40.Kh1 Qf3 41.Kg1 Qg4 42.Kh1 Qf3 43.Kg1=) 38...Qe7 39.Qb7 Qf6 (39...Qb7 40.Bb7 Nf3 41.Kg2+–) 40.Qf7! Qf7 A pinning theme 41.Bf7 Kf7 42.Kh4 Ra3 43.f4 Ra5 44.Rc1 Ra4 (44...g5 45.Kh3+/–) 45.Rc7 (45.e5 Ra2+–) 45...Kg6 46.Rc6 (46.e5 a5+–) 46...Kf7 47.e5 a5 48.Ra6 Ra2 49.h3 a4 (49...g6 50.Ra7 Kg8 51.g4+–) 50.Kg4 (50.g4 g6 51.f5 gf5 52.gf5 a3+–) 50...Ra3 (50...g6 51.Ra7 Kf8 52.h4+–) 51.f5 White prepares the advance e6 51...Ra1 (51...Ra2 52.Ra7 Kf8 53.Kh5+–) 52.Ra7 Kf8 53.e6 a3 54.Ra8 (54.Kh5 a2 55.g4 Rh1 56.Ra2 Rh3 57.Kg6 Rh4 58.Ra8 Ke7 59.Ra7 Kf8 60.Rf7 Ke8 61.Rg7 Rg4 62.Kf6 Rg7 63.Kg7 Ke7+–) 54...Ke7 55.Rg8 a2? (55...Re1 56.Rg7 Kf6 57.Rf7 Ke5+–) 56.Rg7 Kf8 (56...Kd8 57.Ra7 h5 58.Kg5+–) 57.Ra7 Ke8 (57...Re1 58.Ra2 Re5+–) 58.f6 Rd1 59.Ra2 1–0. Ornstein,Axel (2425) – Hallberg,Fredrik (2170), Rilton Cup Stockholm, 1998.

8.Be2 Be7 9.0-0 0-0 10.b5 b6 (10...Rc8 11.Nc3=+) 11.d3 Rc8 12.Nbd2 Re8 (12...Nc5 13.Ne5=+) 13.a4 Nc5 14.Nd4 (14.Ne5 Bd6 15.f4 Be5 16.fe5 Nfd7+=) 14...Bg6 (better 14...Bd3 15.Nc6 Qc7=+) 15.Nc6+= Qc7 16.Rc1 (better 16.Nf3!?+=) 16...Nd3 17.Bd3 Bd3 18.Re1 Ne4 (18...Bg6 19.Be5 Qd7 20.e4–/+) 19.Ne4 de4 (19...Be4 20.f3 Bg6 21.e4 de4 22.Be5–/+) 20.Qb3 (20.Qg4 Bf8=+) 20...Qb7 (20...Bd6 21.f4=+) 21.Ba3 (21.Red1 h6=+) 21...Ba3 (21...Bf6 22.Bb2=+) 22.Qa3 h6 (better 22...Rc7!?=+) 23.Ne7+= Qe7? (better 23...Re7 24.Rc8 Qc8 25.Qe7 Qc3+–) 24.Qe7+– Re7 25.Rc8 Kh7 26.Rec1 (better 26.Rc6+–) 26...f5?? (better 26...a6+–) 27.R8c7 (27.R1c7 Rc7 28.Rc7 h5+–) 27...Rc7 (27...Re8 28.Ra7 Kg6 29.Rc6+–) 28.Rc7 Kg6 (28...a5 29.Rc6 Kg6 30.Re6 Kf7 31.Rb6+–) 29.Ra7 Kg5 (29...Kf6+–) 30.Rb7 g6 (30...f4 31.Rb6 Bc4 32.a5+–) 31.Rb6 Kf6 (31...f4 32.a5 Bc4+–) 32.a5 g5 33.a6 f4 34.a7 fe3 35.fe3 (35.fe3 Be2 36.a8Q Bh5 37.Qh8 Kf5 38.Qg8 Bf7 39.Qf7 Kg4 40.Qe6 Kh5 41.Qh3) 1–0. retiponziani (1930) – blackwellbc (1630), ChessWorld.net, 2015.

8.Be2 Be7 9.0-0 0-0 10.Nc3 Rc8=.

8.Be2 Be7 9.0-0 0-0 10.Nh4 Bg6 11.Ng6 hg6 (11...fg6 12.Nc3=) 12.Nc3+= Rc8 13.Rc1 Nb6 14.Qb3 Nc4 15.d3 (15.Rc2 a5+=) 15...Nb2 (better 15...Nd2 16.Qa4 Nf1 17.Rf1 a5-/+) 16.Qb2+= Nd7 17.Na4 Bf6 (17...Bd6 18.Rc8 Qc8 19.Rc1+=) 18.d4 Nb6 19.Rc8 Qc8 (19...Nc8 20.Rc1+/-) 20.Nb6 ab6 21.Rc1 Qd7 22.Qc3 Ra8 23.f3 (23.Qd3 Qa4+/-) 23...Kf8 (23...Qa4 24.Kf2+=) 24.Bd1 Be7 25.a4 (25.Qd3 Kg8+/-) 25...Bd6 26.b5 Ke7 27.e4 (27.g3 Kd8+/-) 27...de4 (27...Bf4 28.Rb1+=) 28.fe4+/- Bf4 29.Rc2 (29.Qb4 Ke8 30.Rc4 Be3 31.Kh1 Rd8+=) 29...Kd8 (better 29...Ra4 30.d5 Re4-/+ (30...ed5?! 31.ed5 Re4 32.Bf3=)) 30.g3 Bd6 (better 30...Bg5 31.Rf2 Bf6+/-) 31.e5 (31.Rc1 Ke8+/-) 31...Be7 (31...Be5 32.Rd2 Bd6 33.d5=+) 32.Qf3 (32.Rf2 Rc8 33.Qe3 Bb4+/-) 32...Ke8 (32...Qd4!? 33.Kg2 Bc5 34.Qb7 Rc8=) 33.Rd2 Rc8 (33...Bc5+=) 34.Rf2 (better 34.Kg2!?+/-) 34...Bb4= 35.Bb3 Rc1 (better 35...Bc3 36.Kg2 Bd4+/-) 36.Bd1?? (better 36.Kg2+/-) 36...Qd4-/+ 37.Qf7 Kd8 38.Qg8 (better 38.Kg2!? Qd1 39.Kh3-/+) 38...Kd7-+ 39.Qg7 Be7 40.Kg2 Rd1 (worse 40...Qd1 41.Qf7-+) 41.Rf7 Qc5 42.Qg6 Rg1 (42...Qe5 43.Qh7 Rd2 44.Kh3-+) 43.Kh3 Qe5 44.Rh7 (44.Qh7 Qg5-+) 44...Rc1 (44...Ra1!? 45.Qf7 Qf5 46.Qf5 ef5 47.Rh6-+) 45.Qf7 Qd6 46.Rh8 Rc5?? (better 46...Qd1 47.Re8 Qf1 48.Qf1 Rf1-+) 47.Qe8 Kc7 48.Qb8 (48.Qc8) 48...Kd7= 49.Qd6?? (better 49.Qe8 Kc7 50.Qc8) 49...Kd6-+ 50.Rb8 Rc4 (50...Rc7 51.Rg8-+) 51.Rb7 Ra4 52.Rb6 Kc5?? (better 52...Kd5-+) 53.Re6+= Bd6 54.b6 Rb4 55.b7 (55.Re2 Rb6 56.g4 Rb3 57.Kh4 Rb8=) 55...Rb7= 56.Kg4 Rh7 57.h4 Kd5 58.Rg6 Be5 (58...Rc7 59.Kf5 Rh7 60.Rg5 Bg3 61.Kg6 Ke6 62.Kh7 Bh4 63.Rb5+=) 59.Kh3 (59.Rg5 Ke6+=) 59...Ke4 (59...Ra7 60.h5=) 60.g4 (60.Rg4 Kd5+=) 60...Rg7 (60...Rd7 61.g5 Kf5 62.Rg8=) 61.Re6 Kf4 (61...Rd7 62.h5=) 62.g5 (better 62.Re8!?+/-) 62...Kf5 63.Re8 Bf4? (better 63...Rc7=) 64.Rf8+- Ke4 65.Kg4 (65.Kg4 Be3 66.Re8 Kd4 67.Kf5 Rf7 68.Kg6+/-) 1-0. carlos78 (2190) - Maratqr (1925), Rated Blitz game, lichess.org, 2015.

8.Be2 h6 9.0-0 Bd6 10.d3 (10.Nc3 0-0+=) 10...0-0 11.h3 a6 12.Nbd2 b5 13.Re1 Rc8 14.Bf1 Qb6?? (better 14...Bg6=) 15.e4+– Bh7 (15...de4 16.de4 Bh7 17.e5+–) 16.e5 Be7 (16...Ne5 17.Be5 (worse 17.Re5 Be5 18.Ne5 Qc7+–) 17...Qb8 18.a4+–) 17.ef6 Nf6 (17...Bf6 18.Bf6 Nf6 19.Ne5+–) 18.Rc1 Qb7 19.Nb3 Rc1 (19...Nd7 20.Bd4+–) 20.Qc1 Rc8 21.Qd2 1–0. retiponziani (1980) – Ecomarius (2260), ChessWorld.net, 2020.

7.cd5 ed5

8.Nc3 Bd6 9.Be2 0-0 10.0-0 Qe7 11.Nd4 Bg6 12.f4 h6 13.Qe1 (13.f5 Bh7=) 13...Ne4 (13...a5 14.b5 c5 15.Nf3=) 14.Ne4 Be4 15.Qg3 Nf6 16.Bg4 (16.Nb3 Rfe8=) 16...c5 (16...a5!? 17.b5 Ng4 18.Qg4 f5=) 17.bc5+= Bc5 18.Rfc1 Rfe8 (18...Rfd8 19.Nf5 Bf5 20.Bf5+=) 19.Nf5 Bf5 20.Bf5 Bb6 (20...d4 21.ed4 (worse 21.Bd4 Bd4 22.ed4 Qd6=+) 21...Bb6 22.Rc4=) 21.a4 (21.Be5 d4+=) 21...Ba5 (better 21...d4!? 22.ed4 Qd6=) 22.Rc2+– Bb4 (22...Nh5 23.Qh3 Nf6 24.Bd4+–) 23.Rac1 Qd6 (23...Bd6 24.Qh4+–) 24.Be5 (24.Rb1 Qd8+–) 24...Qa6 25.Bd7 (25.d3 Nh5 26.Qf3 Nf6+–) 25...Red8 (better 25...Re5 26.Bb5 Qe6 27.fe5 Ne4+=) 26.Bc6 (better 26.Bb5!? Qe6 27.Bd3+–) 26...Nh5= (26...bc6? 27.Bf6 Bf8 28.Bd8 Rd8 29.Rc6+–) 27.Qf3 bc6 28.Rc6 (28.Qh5!? c5 29.Qg4=) 28...Qd3=+ (28...Qa4 29.Qh5 Bd2 30.Rh6 Be3 31.Kh1 Qd1 32.Rd1 gh6 33.Qh6+–) 29.Qh5 Qd2?? (29...Bd2 30.Qg4 g6=+ (30...Qe3 31.Kh1 g5 32.Rh6 Qe5 33.fe5 Rd6 34.ed6 Kg7 35.Qd4 Kh6 36.Qf6 Kh5 37.Qf7 Kh6 38.Rc7 g4 39.Qf6 Kh5 40.Rh7 Bh6 41.Rh6; 30...Be3?! 31.Kh1 g6 32.Qh3=+)) 30.Bd4+– Rd6 (30...Bd6 31.Qg4 (worse 31.Qd5 Ba3 32.Qc4 Bc1 33.Qc1 Qc1 34.Rc1 Rdc8 35.Rc8 Rc8–/+) 31...Bf8 32.Rf1+–) 31.R6c2 (31.Rc7 Rf8+–) 31...Qd3+– 32.f5?? (better 32.Rc7 Rf8 33.Ra7+– (33.Ba7?! Bd2=)) 32...Bd2–/+ 33.Rc8 Rd8 34.R8c3 (34.R8c7 Be3 35.Be3 Qe3 36.Kf1 Rd7 37.Rd7 Qc1 38.Kf2 Qf4 39.Qf3 Qd2 (worse 39...Qh2 40.Qd5 Rf8 41.Ra7=+) 40.Qe2 Qd4 41.Qe3 Qa4 42.Rd5 a5–/+) 34...Bc3 35.Rc3 Qb1 36.Kf2 Qe4?? (36...Qa2 37.Kg3 Qa4–+) 37.Rc7+– Rf8 38.f6?? (38.Bg7 d4 A) 39.Bf8 de3 40.Ke2 Qg2 41.Ke3 Qg1 42.Ke2 Qg2 43.Ke1 Qe4 44.Kf2 Rf8 45.Qh6 Qf5 46.Kg2 Qg4 47.Kh1 Rb8–/+ (47...Qa4?! 48.Qg5 Kh7 49.Qf5 Kg7 50.Qg5 Kh8 51.Qf6 Kh7 52.Rf7 Rf7 53.Qf7 Kh6 54.Qf6 Kh5 55.Kg2=); B) 39.Bd4+–) 38...Rac8=+ 39.fg7 Rc7 40.gf8Q (40.Qh6 Qf5 41.Kg3 Qg6 42.Qg6 fg6 43.gf8R Kf8–/+) 40...Kf8–/+ 41.Qh6 Ke8 42.Qh8 (42.Kg3 Rc2 43.Qh8 Kd7 44.Qh3 Ke7 45.Ba7 Qg6 46.Kf3 Qf6 47.Kg3 Qf2 48.Kg4 Qg2 49.Qg2 Rg2 50.Kh3 Ra2–/+) 42...Kd7 43.Qh3 (43.Qh5 Rc2 44.Ke1 Ke6–/+ (44...Qg2?! 45.Qf7 Kd6 46.Qf8 Kc7 47.Be5 Kd7 48.Qd6 Ke8 49.Qe6 Kd8 50.Qd6 Ke8 51.Qe6 Kd8 52.Qd6 Ke8=; 44...Rg2?! 45.Qf7 Kd8 46.Qf8 Qe8 47.Qd6 Qd7 48.Qb8 Ke7 49.Ba7=)) 43...Ke7 44.Qf3 (44.a5 Rc2 45.Kg3 a6–/+) 44...Rc2–+ 45.Kg3 Qg6 46.Kh3 Qh6 47.Kg3 (47.Kg4 Qe6 (47...Qh2?! 48.Qf6 Ke8 49.g3=+) 48.Kf4 Qg6–+) 47...Qg5 48.Kh3 Qh6 (better 48...a5!?–+) 49.Kg3–/+ Qg5 50.Kh3 Rc6 (better 50...a5!?–+) 51.g4–/+ Rg6 (51...Qh6 52.Kg3 Qd6 53.Qf4 Ra6 54.Qd6 Kd6=) 52.Qf5 (52.Qf5 Qf5 53.Bc5 Ke6 54.gf5 Kf5 55.Ba7–+) 1–0. Campos Calvo_Sotelo,Juan (1895) – Lorenzo Bailador,A (1995), Championship Individual Veteranos, 2017.

8.d3 Bd6 9.Be2 0-0 10.0-0 a5 11.Nd4 Bg6 12.Qb3 Qb6 13.Bc3 (13.ba5!? Qa6 14.Rd1–/+) 13...ab4–+ 14.ab4 Ra1 15.Ba1 Qb4 16.Qc3 Ra8 17.Qb4 Bb4 18.Nc3 (18.Bc3 Bc3 19.Nc3 Nc5–+) 18...Nc5 19.Rd1 (19.Nc2 Bc3 20.Bc3 Bd3 21.Bd3 Nd3–+) 19...Nd3! 0–1. josquin (2015) – forsetinn (2435), gameknot.com, 2015.

8.d4 Bd6 9.Nbd2 0-0 10.Nh4 Bg4 11.Qc2 (11.Be2 Be6+=) 11...Ne4 12.Nhf3 Ndf6 13.Bd3 Re8 (13...Nd2 14.Nd2 a5 15.ba5 Qa5 16.0-0+=) 14.Ne5= Bc8 15.Ne4 Ne4 16.0-0 Qg5 17.f4 Qh6 18.Be4 de4 19.f5 (better is 19.Rad1!?=) 19...Qe3–/+ 20.Kh1 Qg5 21.Qe4 f6 22.Rae1 (22.b5!? fe5 23.bc6 bc6 24.Qc6 Bf5 25.Qd5 Be6 26.Qd6+=) 22...Bc7 23.Re3 (23.Bc1 Qh5–+) 23...fe5–+ 24.de5 Qh5 (24...Qe7 25.Qc4 Kh8 26.e6+=) 25.Rg3 (25.Qc4 Qf7 26.e6+/–) 25...Bf5 (25...Rf8!? 26.f6 g6–+) 26.Qf5–/+ Qf5 27.Rf5 Rad8 28.h4 Rd1 29.Kh2 Re1 Increasing the pressure on the isolated pawn on e5 30.Rfg5 (30.Rd3 Be5 31.Be5 R8e5 32.Re5 Re5+=) 30...Re7–/+ 31.Kh3 h6 32.Rf5 Be5 33.Be5 R7e5 34.Rgf3 (better is 34.Re5!? Re5 35.Rc3–/+) 34...Rf5–+ 35.Rf5 Re3 36.g3 (36.Rf3 Rf3 37.gf3 Kf7–+) 36...Ra3 37.h5 (37.Kg4 Rc3 38.Rf4 b5–+) 37...Ra4 38.b5 (38.Rf4 c5!–+) 38...Ra5 39.Re5 (39.g4 Rb5 40.Rf2 a5–+) 39...Rb5 (worse is 39...cb5 40.g4–+) 40.Re7 Rh5 41.Kg4 Rb5 42.Kf4 a5 0–1. Romero Leon,Antonio (2210) – Perpinya Rofes,Lluis Maria, Berga op, 1994. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.a3 Nbd7 7.cd5 ed5)

8.d4 Be7 9.Bd3 Bg4 10.Nbd2 0-0 11.0-0 Re8 12.h3 Bh5 13.Be2 (13.Qc2 Bd6=) 13...Qc7 14.Rc1 a5 15.b5 Nf8 (15...Qb6 16.Qa4=) 16.a4 Bb4 17.bc6 bc6 18.Bd3 (18.g4!? Bg6 19.Bb5+=) 18...Bd2 19.Qd2 Bf3 20.gf3 Rab8 (20...Ng6 21.Qc2 Rab8 22.Ba3=) 21.f4 (21.Bc3 Ra8+=) 21...Ng6 22.Bc3 Nh4 23.Be2 (23.Ba5? Qd7 24.f3 Qh3–+) 23...Qd7 24.Kh2 (24.Ba5?? Qh3 25.Rc6 Qg2) 24...Ne4 25.Qd3 (25.Qe1 Rb3=) 25...Re6 (better is 25...Rb3+=) 26.f3?? (better is 26.Bg4!?+=) 26...Nc3 (better is 26...Rg6 27.Rg1 Nf2–+) 27.Rc3–/+ Rbe8 28.e4 (28.Bd1 Re3 29.Qd2–+) 28...de4–+ 29.fe4 Re4 30.Bg4 Qd5 31.Rc5? (31.Kg3 Ng2 (31...Rd4 32.Qb1 Ng6 33.Qb3–+) 32.Qa6 Nf4 33.Rc6 Re3 34.Rf3 Ne2 35.Kg2 Nd4–+) 31...Qa2 (better is 31...Re2! 32.Kg3 R2e3 33.Bf3 Rd3 (worse is 33...Rf3 34.Rf3 Qf3 35.Qf3 Nf3 36.Kf3+/–; worse is 33...Nf3 34.Qe3 Re3 35.Rd5 Nd4 36.Kf2 Re2 37.Kg3 cd5 38.Rc1–+) 34.Rd5 Nf3 35.Ra5 Nd2 36.Kg2 Nf1 37.Kf1 Rd4–+) 32.Kh1?? (32.Rc2 Qa4 33.Re2 Re2 34.Be2–+) 32...Qg2 0–1. Fournier,Frederic (1650) – everman (1660), Active, 2006.

8.Nd4 Bg6 =.

8.Be2 a5 9.b5 Qb6 10.Nc3 (10.0-0 Bd6=) 10...Bd6 (10...c5!?=) 11.Nd4 Bg6 12.Na4 Qc7 13.bc6 bc6 14.Rc1 c5 15.Nb5 Qb6?? (better is 15...Qb8+/–) 16.Nb6+– (16...Nb6 17.Nd6 Ke7 18.Bf6 gf6 19.Nb5+–) 1–0. pcmvr (2530) – wstanevans (2150), net–chess.com, 2006.

8.Be2 Be7 9.0-0 0-0 10.Nc3 h6 11.Qb3 Re8 12.Rac1 Ne4 (12...a5 13.Nd4 Bh7 14.b5=+) 13.h3 (13.d3 Nc3 14.Bc3 Bg4=) 13...Bf6 14.Ne4 Be4 (worse 14...Re4 15.Bd3+/-) 15.Nd4 Ne5 16.f4 (16.b5 Rb8=) 16...Nd7 17.Bf3 Bf3 18.Nf3 Bb2 19.Qb2 Qe7 20.b5 c5 21.a4 Qd6 (21...b6 22.Qc2=+) 22.a5= b6 23.g4 (23.a6 c4=) 23...Nf6 (23...ba5 24.Qa2-/+) 24.g5 (24.a6 Rac8=+) 24...Ne4 25.gh6? (25.d3 Ng3 26.Rfe1 hg5 (worse 26...ba5 27.gh6 Qh6 28.Rc5=) 27.fg5 ba5-/+) 25...Qh6 (better 25...Qg6!? 26.Kh1 Ng3 27.Kh2 Nf1 28.Rf1 Qh6-+) 26.Kh2-/+ Qh5 (26...ba5 27.d3 Nd6 28.Ne5-/+) 27.Rg1 (27.d3 Nd6 28.Ne5 Nf5=) 27...Re6?? (better 27...d4 28.Rcf1 ba5 29.ed4 c4=+) 28.Qg7 1-0. carlos78 (2195) - HailHail (2175), Rated Blitz game, lichess.org, 2015.

8.Be2 Be7 9.d3 h6 10.Nbd2 0-0 11.0-0 Re8 12.e4 (better 12.Nd4!? Bg6 13.Bc3=) 12...de4–/+ 13.de4 Ne4 14.Ne4 Be4 15.Qd4 (15.Re1 Bf6 16.Bf6 Nf6–/+ (16...gf6?! 17.Qd2+=)) 15...Nf6 16.Rfd1 Qd4 17.Nd4 Rad8 18.f3 Bg6 19.Bc4 Nd5 20.Nb3 Ne3 21.Rd8 Rd8 22.Na5? (22.Be2 Re8–/+) 22...Nc4 (better 22...c5!? 23.Bf1 cb4 24.ab4 Bb4 25.Nb7–+) 23.Nc4 b6 (23...Bf5 24.Re1 Be6 25.Ne5–+) 24.Ne5 Bf6 25.Ng6 fg6 26.Bf6 gf6 27.Rc1 Rd6 28.Kf2 Kf7 29.Kg3 Ke7 30.Re1 Kf7 31.Re4 (31.Rc1 f5 32.Kf2–/+) 31...f5 32.Rc4 Ke6 33.Kf4 g5 34.Ke3 Ke5 35.g3 Kd5 36.Rd4 Ke5 37.Rd6?? (37.Rc4 a6 38.h3–/+) 37...Kd6–+ 38.f4 g4 39.Kd4 c5 40.bc5 (40.Kc4–+) 40...bc5 41.Kc4 Kc6 42.a4 a5 43.Kd3 Kd5 44.Kc3 c4 45.Kd2 Kd4 46.Kc2 (46.h3 gh3 47.Kc2 h2 48.Kc1 h1Q 49.Kc2 Qg2 50.Kc1 Kc3 51.g4 Qc2) 46...c3 47.Kd1 (47.h3 gh3 48.Kd1 h2 49.Ke1 h1Q 50.Kf2 c2 51.g4 c1Q 52.gf5 Qe3) 47...Kd3 48.Kc1 c2 49.Kb2 Kd2 50.Kb3 (50.h3 c1Q 51.Kb3 Qc3 52.Ka2 Kc2 53.hg4 Qb2) 50...c1Q 51.Ka2 (51.h4 Qc3 52.Ka2 Kc2 53.h5 Qb2) 0–1. bazilishek (1620) – tiktok_nalang_tayo (1695), lichess.org, 2020.

8.Be2 Bg4 =.

8.Be2 Bd6

9.0-0 0-0 10.Nh4 (10.Nd4 Be6=) 10...Be6=+ 11.f4 Ne4 (11...Nb6 12.Bd4=) 12.d3 (12.Nf3 Bg4=) 12...Qh4 13.de4 Bc7 (13...Nb6 14.Bd4=) 14.Nd2 (14.ed5 Bd5 15.Bd4 a5=) 14...de4 15.Ne4 Rad8 (15...Rfd8 16.Bd3=) 16.Qc2 (16.Qd4 Qh6=) 16...Rfe8 17.Rad1 (17.Bd4 Bf5 18.Bd3 Qe7 19.Nf6 Nf6 20.Bf5 g6=+) 17...Bb6 (17...Bd5 18.Bf3=) 18.Qc3 Nf6 19.Rd8 Rd8 20.Nc5 Bc8 21.Bf3 Re8 22.g3 (22.Qe1 Qh6=) 22...Qh6 23.Re1 Nd5 (23...Bg4 24.e4=) 24.Qd2 (24.Qd3 Rd8 25.Rd1 Bc5 26.bc5 f5=) 24...Rd8 25.Rd1 f5 26.Qg2 Be6 27.Qe2 Bf7 28.Be5 Re8 29.Qd3 (White gets strong initiative) 29...Qg6 30.Re1 a5 31.Nb7+= ab4 32.ab4 Nb4 33.Qb1 c5 34.Rd1 Be6 35.Qb2 Rc8 36.Qe2 c4 37.Nd6 Rf8 38.Nc4 Bc5 39.Bd6 Bd6 40.Rd6 Qf7 41.Ne5 Qe7 42.Qd2 Rb8 43.Nc6 (43...Nc6 44.Re6 (44.Rc6?! Bf7+/–; 44.Bc6?! Bc4+/–) 44...Rb1 45.Kf2 Qe6 46.Bd5+–) 1–0. Degterev,Pavel – Chovanec,Vladimir, WC–2010–P–00010, 2006.

9.0-0 Qc7 10.Nc3 =.

9.Nc3 0-0 10.0-0 Ne5 11.Ne5 Be5 12.f4 Bc7 13.Na4 Re8 14.Rc1 Ne4 15.Nc5 Nd6 16.Be5 b6 (16...Re7!?=) 17.Na6+= Bd7 (17...Qd7!?+=) 18.Qb3+/– f6 (18...d4!?+/–) 19.Nc7+– fe5 20.Na8 Qa8 21.fe5 Re5 22.Bf3 Nc4 23.Qc3 Qe8 24.a4 a6 (24...Be6 25.b5! c5 26.Rf2+–) 25.Be2 (25.e4 Qe6+–) 25...Ne3? (better is 25...Re4+–) 26.de3 Re3 27.Bd3 c5 28.Qc2 h6 (28...Ba4 29.Qf2 g6 30.Ba6 Qe7+–) 29.bc5 bc5 (29...Ba4 30.Qd2 bc5 31.Rc5+–) 30.Bg6 Qd8 (30...Qc8 31.Qf2 Re7 32.Rc5+–) 31.Qc5 (31.Qc5 Re5 32.Rf7+–) 1–0. Zak,Pawel (1815) – Dzionk,Agata (1770), Polanica Zdroj op–C, 2007.

9.Nd4 Be6 10.f4 Nb6 11.0-0 =.

9.Nd4 Bg6 10.f4 h6 11.Nb3 0-0 12.0-0 Qe7 13.Nc3 Rfe8 14.Na4 Ne4 15.Nc3 Rad8 16.Ne4 de4 17.Qe1 Bf5 18.Nd4 Bh7 19.Qg3 Nf6 20.Rfc1 Rd7 21.Rc2 Red8 22.Rac1 Kf8 (22...Bg6 23.Bc4 Bh7 24.Bc3=) 23.Bg4+= Ng4 24.Qg4 Qe8 25.b5 cb5 26.Nb5 f5 27.Qe2 Bb8 28.Nd4 Kg8 29.Qb5 Re7 30.Qa5 Qd7 31.Nb5 Kh8 32.Bd4 The pressure on a7 grows 32...b6 33.Qb4 Bg8 34.a4 Qe8 35.a5 ba5 36.Qa5 Red7 (36...Rd5 37.Rc5=) 37.Rc5 (37.Ba7 Ba7 38.Na7 Ra8=) 37...Qf7 38.Bc3 Qh5 39.Nc7 Qg4 (39...Qg6 40.Rb1=) 40.h3 (40.Na6 Bd6 41.Rf5 Bc4=) 40...Qe2 Attacking the backward pawn on d2 41.Rc6 Qh5 42.Rb1 (42.Bd4 A) worse is 42...Rd4 43.ed4 Rd4 44.Rb1 Bc7 45.Rc7+/– (45.Qc7?! Rd2 46.Kh2 Rg2 47.Kg2 Qf3 48.Kh2 Qf2 49.Kh1 Qf3 50.Kg1 Qg3 51.Kh1 Qf3 52.Kg1 Qg3 53.Kh1 Qf3=); B) 42...Kh7=) 42...Bb3 (42...Kh7 43.Rb5 Rf8 44.Na6=) 43.Qc5 (43.Na6!? Bd6 44.Bg7 Kg7 45.Qa1 Kh7 46.Rb3+=) 43...Kg8+= 44.Rb3 Qd1 45.Kh2 Qb3 46.Ne6 Qd5 (46...Rd5 47.Qe7 R5d7+/–) 47.Nd8+= Qc5 48.Rc5 Rd8 49.Rf5 Bc7 50.Rc5 Bd6 51.Rc4 Re8 52.Rc6 Rd8 53.Kg3 Kf7 54.Kg4 g6 55.Ra6 h5 56.Kg5 Rd7 (56...Be7 57.Kh6 h4 58.Rg6+– (58.Ra7?! Rd5 59.Be5 Rd2+/–)) 57.f5 gf5 58.Kf5 (worse is 58.Kh5 Ke6+–) 58...Bg3 59.Ke4 Be1 60.Kf3 Bd2 61.Bd2 Rd2 62.Ra7 Kg6 63.Ra6 Kg7 64.g4 Rh2 65.Kg3 Re2 66.Kf4 hg4 67.hg4 Kf7 (67...Rf2 68.Kg3 Re2 69.Kf3+–) 68.e4 Rf2 69.Kg5 Rg2 (69...Re2 70.Ra4+–) 70.e5 Rg1 71.e6 Ke7 72.Kf5 Rf1 73.Kg6 Re1 74.g5 1–0. Winiger,Albert (2340) – Freialdenhoven,Andreas (2270), remoteschach.de, 2008.

7.Be2 a5

8.c5 ab4 9.ab4 Ra1 10.Ba1 b6 11.d4 bc5 12.bc5 (worse 12.dc5 Qb8 13.Bc3 Ne4-/+) 12...Be7 13.0-0 0-0 14.Nh4 Be4 15.Nd2 Qa5 16.f3 Bg6 (16...Bb1! 17.Nb1 Qa1=) 17.Ng6+= hg6 18.Qc2 Rb8 19.Bc3 Qa3?? (better 19...Qc7+/-) 20.Ra1+- Qa1 (20...Bc5 21.Ra3 (21.dc5?! Qc5 22.Nf1 e5+-) 21...Ba3 22.Qa4+-) 21.Ba1 e5 (21...Ra8 22.Bc3+-) 22.Qa4 (22.de5!? Ne8+-) 22...ed4 23.ed4 Rc8 24.Qa6 Rc7 (24...Re8 25.Kf2 Nb8 26.Qb7+-) 25.Bc3 (25.Qa8 Nf8+-) 25...Nb8 26.Qa8 Nfd7 27.Ba5 Rc8 28.Ba6 Re8 29.g3 (29.Bb7 Bd8 30.Bd8 Rd8 31.Bc6 Nc6 32.Qc6 Nf8+-) 29...Kf8 (29...Bf6 30.Bb7 Bd4 31.Kf1+-) 30.f4 (30.Nb3!? Bf6 31.Bb7 Be7+-) 30...g5 31.Nf3 gf4 32.gf4 Nf6 (32...Nc5 33.dc5 Bc5 34.Kf1+-) 33.Bc7 Nfd7 34.Ne5 Bf6 35.Bb8 (35.Bb7!? Be5 36.fe5 f6 37.Bc6 fe5 38.Bd5 g6+-) 35...Nb8 36.Bb7 Bh4 (36...Rd8 37.Bc6 Be5 38.fe5 Nc6 39.Qc6+-) 37.Bc6 Rd8 (37...Nc6 38.Qc6 g6 39.Qb7+-) 38.Kg2 (38.Bd5 Na6 39.Qb7 Be7+-) 38...g6 (38...Nc6 39.Qc6 Kg8 40.Qb7+-) 39.Kf3 (39.Qb7 Be7+-) 39...Kg7 (39...Nc6 40.Qc6 Kg7 41.Qb7+-) 40.Bd5 (40.Qb7 Rf8 41.Bd5 Bf6 42.Nf7 Nc6 43.Qc6 Rf7 44.Bf7 Kf7 45.Qd7 Be7 46.c6 Kf8 47.c7 g5 48.c8Q Kg7 49.Qe7 Kg6 50.Qg5 Kf7 51.Qcg8) 40...Bf6 (40...Nd7 41.Qb7 Ne5 42.fe5+-) 41.Qb7 Be5 42.fe5 (better 42.Qf7 Kh8 43.de5 Rd5 44.Qd5 Na6+-) 42...Nd7 43.e6 (43.e6 fe6 44.Be6+-) 1-0. Alexsur81 (2610) - blitzbullet (2540), Rated Blitz game, lichess.org, 2019.

8.c5 b6 9.d4 Qb8 10.Qa4 bc5 11.b5? (11.dc5 ab4 12.Qc6 Bc5–/+) 11...Nb6 (better is 11...c4!? 12.Nc3 Ne4–+) 12.Qd1–/+ Nc4 13.Bc4 dc4 14.dc5 cb5 15.Be5 (15.Bf6!? gf6 16.Nd4–+) 15...Qd8 16.Bd6 Bd6 17.cd6 Ne4 18.0-0 (18.Qd4 0-0–+) 18...Qd6 19.Nd4 Qe5 20.Nd2 0-0 21.N2f3 Qc5 22.Nf5 Qf5 23.Qc2 Nd6 24.Qc3 Rfd8 25.Rad1 Qc5 26.Nd4 b4 27.ab4 ab4 28.Qc2 Ra3 29.Qb1 Rda8 30.Nc2 R3a4 0–1. Stolzenwald,Karl Heinz – Ebenhoech,Daniel (2030), Bad Woerishofen op1, 2006.

7.Be2 dc4

8.Bc4 Nb6 9.Be2 Be7 10.0-0 0-0 11.Nc3 a5 12.b5 cb5 13.Nb5 Rc8 14.d3 Bg4 15.Rb1 Bh5 16.Bd4 Nbd7 17.Nd2 (17.Qd2 a4+=) 17...Be2= 18.Qe2 e5 19.Ba1 Qb6 20.Nc4 Qe6 21.Na5 Qa6 22.Nc4 Rc5 23.Qb2 e4 24.Nd2 ed3 25.Qb3 Rd8 26.Bd4 (26.Qd3 Ne5 27.Qe2 Rd2 28.Qd2 Rb5 29.Rb5 Qb5+=) 26...Rcc8 Attacks the isolani on a3 27.Qd3 Nc5 28.Qc2 Nce4 29.Qa2 h5 30.Nf3 Nd5 31.Qb2 Qa4 32.Bg7 f6 33.Nfd4 Kg7 34.Qe2 (better 34.Ne6!? Kg8 35.Nd8 Rd8 36.Rfd1+-) 34...Kg6+= 35.Qf3 Nc5 36.e4 Nc7? (36...Nb6 37.Nf5 Bf8 38.Ng3+/-) 37.Rb4 (37.Nf5 Bf8 38.Nh4 Kf7 39.Qh5 Kg8 40.Qg4 Kh8 41.Ng6 Kg8 42.Ne7 Kf7 43.Nc8 Nb5 44.Qh5 Kg8 45.Qg6 Bg7 46.Ne7 Kf8+-) 37...Qa5+/- 38.Qf5 Kh6 39.Qh3 (39.Qh3 Kg6 40.Nf5+/-) 1-0. starwars_1 (2190) - marekt (2135), gameknot.com, 2017.

8.Bc4 Bd6 9.0-0 =+.

8.Bc4 Bd6 9.Nc3 0-0 10.0-0 Bg4 11.Be2 Rc8 12.h3 Bh5 13.d4 Nd5 14.Rc1 Qe7 15.Qd2 N7f6 16.Rfe1 a5 17.ba5 Ba3 18.Ba3 Qa3 19.Nd5 cd5 20.Ra1 Qe7 21.Qb2 Rc7 22.Rec1 Rfc8 23.Rc7 Qc7 24.g4 Bg6 25.Ne5 Ne8 26.Ng6 hg6 27.a6 ½–½. Holz auf der Heide – R Poschmann, Leipzig 1999.

8.Bc4 Bd6 9.d3 =+.

7.Be2 Bd6

8.0-0 0-0 9.d3 Qb8 10.Nbd2 Ng4 11.h3 Ngf6 (11...Nh2 12.Nh2 Bh2 13.Kh1=) 12.Kh1 (12.c5 Be7+=) 12...Ne5 (12...e5 13.e4 Be6 14.Ng5=) 13.Qc2 (13.Nh4 Bd3 14.Be5 Be5 15.Bd3 Ba1 16.Qa1 Rd8+=) 13...Rd8 (13...Nf3 14.Bf3 e5 15.e4=) 14.Nh4 Bg6 15.f4 Nc4 16.Nc4 dc4 17.Qc4 Nd5 18.g4 (18.Ng6 hg6 19.Qd4 Bf8=) 18...f6 (18...e5 19.Rf3 ef4 20.Ng6 hg6 21.e4+=) 19.Rf3 (better is 19.Ng6!? hg6 20.Qe4+=) 19...Bf7+= 20.Qc2 Qc7 21.Rg1 White prepares g5 21...a5 22.ba5 Ra5 (22...Qa5 23.Ra1–/+) 23.g5+= Be7 (23...f5!?+=) 24.e4= Nf4 25.gf6 Bf8 26.Qd2 (better is 26.Bf1+=) 26...Ne2–/+ 27.Qe2 Rd7 (better is 27...Bh5 28.Qe3 Bf3 29.Nf3 Rd7–/+) 28.fg7+= Bd6 (28...Ba3 29.Bc3 Ra8 30.Ng2+/–) 29.d4 Bf4 30.Qf2 Bh6 31.d5! ed5?? (31...cd5 32.Rf6 Combination; 31...ed5 32.Nf5 Combination) 32.ed5 (better is 32.Nf5 Bg5 33.Rg5 Qh2 34.Qh2 h6 35.Qb8 Rd8 36.Qd8 Be8 37.Qe8 Kh7 38.g8Q) 32...Bd5–+ (32...cd5?? 33.Nf5 Ra6 34.Nh6 Rh6 35.Qe3 Rh3 36.Rh3+–; 32...Rdd5 33.Rf7! Qf7 34.Qf7 Kf7 35.g8Q Ke7 36.Re1 Kd6 37.Qd8 Kc5 38.Qa5 b5 39.Qb4 Kb6 40.Bd4 Rd4 41.Qd4 c5 42.Qd8 Kb7 43.Qd7 Kb6 44.Re6 Ka5 45.Qa7) 33.Nf5 Bf3?? (better is 33...Qf4! 34.Nh6 Qh6–/+) 34.Qf3+– Rf5 35.Qf5 Bg7?? 36.Be5 Qd8 37.Qg4 Qf8 38.Qd7 Qf3 39.Rg2 Qf1 40.Kh2 (40.Kh2 Qg2 41.Kg2 Be5 42.Qe8 Kg7 43.Qe5 Kf7 44.Qc7 Ke6 45.Qb7+–) 1–0. Frank,Detlev (1835) – Singh,Gurpreetpal (1650), Pinneberg–ch, 2005. (=1.a3 d5 2.b4 Nf6 3.Bb2 Bf5 4.Nf3 Nbd7 5.e3 e6 6.c4 c6 7.Be2 Bd6)

8.0-0 dc4 9.Bc4 0-0 10.Nd4 +=.

8.0-0 e5 9.d3 0-0 (9...Qe7 10.Nbd2 0-0 11.c5 Bc7 12.Qc2 Bg4 13.h3 Bf3 14.Nf3 Qe6=) 10.Nc3 (10.c5 Bc7 11.Nbd2 Qe7 12.Qc2 Bg4 13.h3 Bf3 14.Nf3 Qe6=) 10...Re8 (10...Qe7 11.c5 Bc7 12.Qc2 Rfd8 13.Rad1 a5 14.e4 Be6+=) 11.Qb3 (11.e4 Be6 12.cd5 cd5 13.Ng5 d4 14.Nb5 Bb8=) 11...dc4 (11...Be6 12.Ng5 Qe7 13.c5 Bc7 14.Ne6 Qe6=) 12.dc4 Qe7 13.Rad1 (13.c5 Bc7 14.Nh4 Be6=) 13...a5 (13...e4 14.Nd4 Qe5=) 14.c5 Bc7 15.Nd2 ab4 16.ab4 e4 17.Nc4 Be6 18.Qc2 Bc4 19.Bc4 Bh2?? (better is 19...b6+=) 20.Kh2+– Ng4 21.Kg3?? (better is 21.Kg1 Nde5 22.Rd4+/– (22.Qe4? Qh4 23.Qf4 g5–+)) 21...Qg5 0–1. Chiarion,Elisa (1905) – Biancotti,Alessandro (1910), Open A, 2009.

8.0-0 Qe7 9.d3 e5 10.cd5 cd5 (10...Nd5? 11.e4+–) 11.Nc3 0-0 (11...0-0 12.Nb5 Bb8=). Kulichenko – Laes, corr, 1953.

8.0-0 h6 9.Nc3 0-0 10.Nd4 Bg6 11.cd5 ed5 12.f4 Re8 13.Bf3 Ne4 14.Re1 Ndf6 15.Nce2 c5 16.bc5 Nc5 17.f5 Bh7 18.Nf4 Qd7 19.g4 Bf4 20.ef4 Nd3 21.Re8 Re8 22.Bc3 Nf4 23.Qb3 Ne4 24.Bb4 h5 25.Qe3 Nh3 26.Kg2 Nhg5 27.h3 Qc7 28.Be2 h4 29.d3 Qg3 30.Qg3 Ng3 31.Bf3 Nf3 32.Kf3 g6 33.Kf4 gf5 34.gf5 Ne2 35.Ne2 Re2 36.Rg1 Bg6 37.fg6 fg6 38.Rg6 Kf7 39.Rg4 Rf2 40.Ke3 Rg2 41.Kd4 Rg4 42.hg4 h3 43.Bd6 Ke6 44.Bh2 b5 45.Ke3 a5 46.Kf3 b4 47.ab4 ab4 48.Bf4 b3 49.Bc1 h2 50.Kg2 Kf6 51.Kh2 b2 52.Bb2 Kg5 53.Kg3 Kg6 54.Kf3 Kf7 55.Kg3 Ke6 56.Kf3 Kd7 57.Kg3 Kc6 58.Kf3 Kd7 59.Kg3 Kc6 60.Kh4 Kd7 61.Kh5 Kc6 62.Kh6 Kd7 63.g5 Kc6 64.g6 Kd7 65.Kh7 Kc6 0-1. Max1993Brand (2005) - sticksator (2215), Rated Blitz game, lichess.org.

8.0-0 h6 9.cd5 cd5 10.d3 0-0 11.Nbd2 a5 12.ba5 Qa5 (12...Ra5 13.Nb3 Ra6 14.Nfd4=) 13.Nb3 (better is 13.e4 de4 14.de4 Be4 15.Nc4 Bh2 16.Nh2+/–) 13...Qb6 14.Nfd4 Bh7 15.a4 Rfc8 16.Nb5 Bb4 17.Qb1 e5 18.Nc1 Bc5 19.Nb3 Bb4 20.Nc1 Bc5 21.Nb3 Bb4 22.Nc1 ½–½. Mirzoev,A (2570) – Topak,E (2305), Angora Int, 2011. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.a3 Bd6 6.c4 c6 7.Be2 Nbd7)

8.Nc3 dc4 9.Bc4 0-0 10.0-0 +=.

8.Nc3 e5 9.d4 e4 10.Nd2 0-0 11.Qb3 Be6 12.cd5 (12.c5 Bc7 (12...Bb8 13.b5 cb5 14.Nb5 a6 15.Nc3 Qc7 16.f3 b6=) 13.0-0 Bg4 14.Qd1 Be2 15.Qe2 b6 16.Rab1 b5=) 12...cd5 13.Nb5 (13.Rc1 a6 14.0-0 Rc8 15.Na4 Rc1 16.Rc1 Qb8=) 13...Bb8 14.Rc1 Ne8 (14...Nb6 15.a4 Qd7 16.h3 Rc8+=) 15.g3 (15.0-0 a6 16.Nc3 Qh4=) 15...f5 (15...Nd6 16.Nd6 Bd6=) 16.0-0 (16.Nc3 Nb6=) 16...Rf6 (16...Qg5 17.f4 Qg6 18.Rc2=; 16...Nd6=) 17.f3 (17.Rc2 Nd6=) 17...Rh6 (17...Nd6 18.Nc3=) 18.Rf2 g5 (18...a6!? 19.Nc3 f4 20.gf4 Bf4 21.ef4 e3+=) 19.fe4 fe4 20.Rcf1 Ndf6 21.Nc3 Bd6 22.Nb5 Be7 (22...Bb8 23.Qa2+=) 23.Rc1 a6 24.Nc3 Qd6 25.Na4 b6 26.b5 ab5 27.Nc3 (27.Bb5!? Qd8 28.Bc6=) 27...b4= 28.Nb5 Qd7 29.ab4 Kh8 30.Qc3 (30.Nc3 Nc7=) 30...Ng4+= 31.Bg4 (31.Rg2 Rc8 32.Qb3 Rc1 33.Bc1 Rf6+=) 31...Bg4–/+ (worse is 31...Qb5 32.Qc6 Qc6 33.Rc6+=) 32.Na3 Kg8 (32...Qa4 33.b5–/+) 33.Qb3+= Be6 34.Qc3 (34.b5 Nf6+=) 34...Bh3 (34...Nf6 35.Ndb1–/+) 35.Qb3 0–1. Gutierrez,Marcelo – Mangiantini,Ariel, LNA Copa Puma, 2007.

8.Nc3 e5 9.d4 e4 10.Nd2 0-0 11.c5 Bb8 12.b5 A) 12...Qc7 A1) 13.Rc1 Rc8 14.bc6 Qc6 15.g4 Be6 16.g5 Ne8 17.Nde4=; A2) 13.Qa4 cb5 14.Qb3 Be6 15.Nb5 Qc6 16.0-0 Bg4 17.Bg4=; A3) 13.bc6 Qc6 (13...bc6 14.Rb1 Be6 15.Ba6 Re8 16.Qb3 Qd8 17.Qb7+/–) 14.g4 Be6 15.Rb1 Ne8 16.f3 ef3= 17.Bf3=; A4) 13.Rb1 Rc8 14.g4 Be6 15.g5 Ne8 16.bc6 Qc6 17.Bb5=; A5) 13.Qb3 Be6 14.bc6 Qc6 15.Rb1 Rc8 16.Ba1 b6 17.Ba6+=; B) 12...cb5 B1) 13.Nb5 a6 14.Nc3 Be6 B11) 15.f4 ef3 16.Bf3 Re8= (16...Qc7 17.Qb3=) 17.0-0=; B12) 15.Rc1 Qc7 16.g4 h6 17.h4=; B2) 13.Qb3 a6 14.a4 ba4 15.Qb7 Bh2 16.Rh2 Rb8 17.Qa6+=.

8.Nc3 e5 9.d4 e4 10.Nd2 0-0 11.cd5 cd5 A) 12.Qb3 A1) 12...Nb6 13.Nb5 (13.Rc1 Rc8 14.0-0 Bg4 15.Qd1 Qd7 16.f3 ef3 17.Bf3+=) 13...Bb8 14.Rc1 a6 15.Nc3 Bg4 (15...Qd6 16.a4 Rc8 17.a5=) 16.Qd1 (16.f3 ef3= 17.gf3+=) 16...Be2 17.Qe2+=; A2) 12...Be6 13.Rc1 A21) 13...Rc8 14.0-0 Qe7 (14...a6 15.f3 ef3 16.Bf3 Qe7 17.Qa4=) 15.Rc2 Rc6 16.b5 Rc7= 17.Rfc1=; A22) 13...Nb6 14.0-0 Bg4 15.f3 ef3 16.gf3 Bh3 17.Rfe1+=; B) 12.Nb5 B1) 12...Bb8 13.Nc3 (13.Rc1 a6 14.Nc3 Nb6 15.Qc2 Bd6 16.Nb3 Qc7 17.Qd1=; 13.0-0 a6 14.Nc3 Re8 15.Rc1 Nb6 16.f4 ef3 17.Rf3+=; 13.Qb3 a6 14.Nc3 Nb6 15.a4 Qd6 16.a5 Nbd7 17.b5=) 13...a5 14.Qb3 Nb6 15.ba5 Ra5 16.a4 (16.Rb1 Nfd7 17.Bb5=) 16...Bd6= (16...Bg4 17.Ba3=) 17.Nb5=; B2) 12...Be7 13.Rc1 (13.0-0 Qb6 14.Rc1 Rfc8 15.Nc3 a5 16.Qb3 ab4 17.Nd5+=; 13.Qb3 Qb6 14.Nc3 Qe6 15.h3 Nb6 16.0-0 Rfc8 17.Rfc1=) 13...Qb6 14.0-0 Rfc8 15.Qb3 a6 16.Nc3 Qe6 17.Kh1=.

8.Nc3 e5 9.cd5= cd5 (worse is 9...Nd5 10.e4 Nf4 11.ef5 Ng2 12.Kf1+–) 10.Nb5 (10.0-0 0-0=) 10...Bb8 11.d4 (11.0-0 0-0=) 11...e4 12.Ne5 a6 (12...0-0 13.Rc1+=) 13.Nd7 Nd7 14.Nc3 Nb6 (14...Qg5 15.g3 Bh3 16.b5=) 15.b5 (15.Rc1 0-0+=) 15...0-0+= 16.ba6 ba6 17.a4 (17.Qb3 Qd6+=) 17...Qg5 18.g4 Be6 19.h4 Qg6 (19...Qd8 20.Ba3 Re8 21.Rc1+=) 20.a5 Nc4 (20...Nd7 21.Qa4 Ra7 22.h5+=) 21.Bc4 (21.h5 Qg5 22.Bc4 dc4 23.Ne4 Qd5=) 21...dc4+= 22.h5 Qg4 23.Qg4 Bg4 24.Ne4 ½–½. Nilsson,Jon (1995) – Dyrgaard,K (2205), 22nd North Sea Cup, Esbjerg DEN, 2007.

8.Nc3 h6 9.Rc1 0-0 10.0-0 a5 11.b5 e5 12.bc6 bc6 13.cd5 cd5 (better is 13...Rb8 14.dc6 Rb2 15.cd7 e4=) 14.d3?? (better is 14.Nb5 Qb8 15.Nd6 Qd6 16.d4+=) 14...Rb8–/+ 15.Rc2 Qe7 (15...Nc5!?–/+) 16.a4= Nc5 17.Nb5 Bd3? (17...Nfd7 18.Rc1 Nb7 19.Rc6+=) 18.Nd6?? (better is 18.Bd3 Nd3 19.Qd3+–) 18...Bc2+= 19.Qc2 Rb2 20.Qb2 Qd6 21.Qe5 (21.Ne5 Na4 22.Qa1 Ne4 23.Nf7 Rf7 (worse is 23...Kf7 24.Qa4 Qc7 25.Ra1=) 24.Qa4 Nc3+=) 21...Qe5 22.Ne5 Na4 23.Nc6 Nc3 24.Bf3 Ra8 25.Rc1 Nb5 26.Rc5 Ra6 27.Ne7 Increasing the pressure on the isolated pawn on d5 (worse is 27.Rb5 Rc6 28.Kf1 Ra6+=) 27...Kf8 28.Nd5 Nd5 29.Bd5 Nd6 30.Rc6 Rc6 31.Bc6 Ke7 32.Kf1 Ke6 33.Ke2 g5 34.Kd3 Ke5 35.h3 f5 36.f3 h5 37.g3 f4 38.gf4 gf4 39.e4? (better is 39.ef4!? Kf4 40.Kc3=) 39...h4–/+ 40.Bd7 Nf7 41.Kc3 Kd6 42.Bg4 Ne5 43.Bh5 Kc5 44.Kb3 Kb5?? (better is 44...Kd4–+) 45.Be8+= Kc5 46.Bh5 Nd7?? (46...Kd4 47.Ka4–+) 47.Bf7?? (better is 47.Ka4=) 47...Kd4–+ 48.Bg6 Ke3 49.Bh5 Nf6 (better is 49...Ne5–+) 50.Bg6?? (better is 50.Bf7–+) 50...Kf3 51.e5 Ng8 (51...Nd7 52.e6 Nc5 53.Kc4 Ne6 54.Bf5–+) 52.Kc4 (52.Bh7 Ne7 53.Kc4–+) 52...Kg3 53.Bf5 (53.Bd3 Kh3 54.Be4–+) 53...f3 0–1. Macedo,A Soares De (2005) – Barbosa,P E E Silva, IRT NATAL OPEN, 2009.

8.c5 Bc7 9.Nh4 Bb1 10.Qb1 0-0 11.Nf3 a5 12.0-0 ab4 13.ab4 Ra1 14.Qa1 Qb8 15.h3 (15.d4 Ne4+=) 15...e5= 16.Qa3 e4 17.Nd4 White plans b5 17...Bh2 18.Kh1 Be5 19.Ra1 Re8 20.b5 cb5 21.Bb5 Rc8 22.Rc1 Rc7 23.c6 (23.f4 ef3 24.Nf3 Bb2 25.Qb2 Nc5–/+) 23...bc6 24.Nc6 Bb2 25.Qb2 Qb7 26.Qa3 Kh8 27.Qd6 Rc8 28.Rb1 h6 29.Kg1 Qc7 30.Qc7 Rc7 31.f4 ef3 (31...Nc5 32.g4=) 32.gf3+= g5 33.Kf2 Kg7 34.Ke2 Nc5 35.Rg1 (35.d4 Nb7+=) 35...Ne6 (35...Rb7 36.Nd4=) 36.h4 (36.d4 Kf8+=) 36...Kf8 (36...Ne8 37.Nb4 Rb7 38.Be8 Rb4 39.hg5 hg5 40.Ra1=) 37.hg5+= hg5 38.Ra1 Ng8 39.Ra8 Kg7 40.d4 Ne7 41.Ra6 Nf5 42.Rb6 Ne7 43.Kd2 f5 44.Ne5 Nf8 45.Rd6 ½–½. Trokenheim,Marek – Wealer,Henri, corr Sve–Lux, 1998.

8.d3 0-0 9.c5 Be7 10.Nc3 =.

8.d3 0-0 9.Nbd2 Re8 10.0-0 (10.Nh4 Be5 11.d4 Bc7=) 10...e5 11.Rc1 (11.e4 Bg6=) 11...Rc8 (11...a5 12.c5 Bc7 13.Qc2=) 12.Qb3 (12.e4 de4 13.de4 Be4 14.Ne4 Ne4 15.Bd3+=) 12...Bd3 (12...Qe7!?=) 13.Bd3 (13.Qd3 e4 14.Ne4 Re4 15.cd5 cd5 16.Rc8 Qc8+/–) 13...e4 14.Be2 (14.cd5 ef3 15.Nf3 Nd5+/–) 14...ef3+= 15.Nf3 Ne5 (15...Qe7 16.Rfd1+=) 16.cd5 Nd5 (16...cd5 17.Nd4+=) 17.Rfd1 (17.Be5 Be5 18.Bc4 Qd6+/–) 17...Nf3 (17...Qf6 18.Qc2 Nf3 19.Bf3+= (19.gf3? Qg5 20.Kh1 Qh4–+)) 18.Bf3+/– (18.gf3?? Qg5 19.Kf1 Bh2–+) 18...Be5?? (18...Nf6+/–) 19.e4 (19.Be5 Re5 20.Qc4 Re8+–) 19...Qh4?? (better is 19...Bb2 20.Qb2 Qf6=) 20.g3 (20.Be5 Nf6 21.Bg3 Qh6+–) 20...Qf6 (20...Qh6 21.Be5 Nb6 22.Bg4+–) 21.Be5 (21.ed5?! Bb2 22.Rc2 Bd4+=) 21...Re5 22.Rd5 (22...Re7 23.Qc3+–; better is 22.ed5!? h6+–) 1–0. Schols,A – Timmerhuis,J, Rotterdam, 2002.

8.d3 e5 9.Nbd2 0-0 10.0-0 e4 11.Nd4 Bg6 12.de4 de4 13.Re1 (13.c5 Bc7=) 13...Ne5 14.Nf1 (14.Qb3 Qe7+=) 14...Qe7 (better is 14...Nd3!? 15.Bd3 ed3+=) 15.Ng3= Qd7 (15...Rfd8 16.c5 Bb8 17.Ndf5=) 16.Nb3 (16.Qb3!?=) 16...Rad8 17.Qc2 (17.Be5 Be5 18.Qd7 Rd7+=) 17...Nd3–/+ 18.Red1 Qe7 (18...Ng4 19.Bg4 Qg4 20.Bd4+=) 19.Rab1 (19.Bd4 Be5+=) 19...Rd7 (19...Nb2 20.Qb2 h5 21.Nd4–/+) 20.Bc3 (20.Bd4 Rfd8+=) 20...Rfd8 (20...h5 21.Bf6 Qf6 22.f4=) 21.Nd2 (21.Nd4!?=) 21...Bg3+= 22.hg3 Bh5?? (better is 22...Qe6+=) 23.Bf6+– Qf6 24.Ne4 (24.Bh5 Qf2 25.Kh2 f5–/+) 24...Qe5 (24...Qg6 25.Bd3 (25.Rd3?! Be2 26.Rd7 Rd7+/–) 25...f5 26.Nc5 Bd1 27.Rd1+– (worse is 27.Qd1 Rd3 28.Nd3 f4+–)) 25.Bd3 Bd1 26.Rd1 g6 27.Nc5 (27.c5 h5+–) 27...Re7 28.Be2 (28.Nb3 Red7+–) 28...Rd1 29.Bd1 b6 30.Nb3 Rd7 (30...c5 31.Qd2+–) 31.Bf3 c5 32.bc5 bc5 33.Bd5 Rd6 (33...Rc7 34.e4+–) 34.a4 (34.Nc5 Rd8+–) 34...g5 (34...Rb6 35.Qd3+–) 35.Qe4 (35.Qd1 Rb6+–) 35...Qf6 (35...Qe4 36.Be4 Rd8+–) 36.g4 Rb6 (36...Kh8 37.Nc5 Kg7 38.Nb3+–) 37.Nc5 Rb2 (37...Qd8 38.Nd3 Rb1 39.Kh2 Qd6 40.Ne5+–) 38.Qf5 (38.Qe8 Kg7 39.Ne4 Rb1 40.Kh2 Rb6 41.Nf6 Rf6 42.c5 h5 43.gh5 Rf2 44.Qe5 Kh7 45.Be4 Rf5 46.Bf5 Kg8 47.h6 Kf8 48.Bd7 Kg8 49.Qg7) 38...Qe7 (38...Qf5 39.gf5 h6+–) 39.Nd7 Kg7 (39...Rb1 40.Qb1 Qd7 41.Qb5+–) 40.Ne5 (better is 40.Be4 Qd7 41.Qd7+–) 40...f6 (40...Qf6 41.Nf7 Qf5 42.gf5+–) 41.Qd7 (41.Nc6 Qe8 42.Nd4+–) 41...Qd7 42.Nd7 a5 (42...Ra2 43.c5 Ra1 44.Kh2 Ra4 45.c6+–) 43.e4 (better is 43.c5!? Rb4+–) 43...Rb4 44.Nc5 Kf8 45.Kf1 Ke7 46.Ke2 (46.g3 Rb1 47.Kg2 Ra1+–) 46...Kd6 (46...Rb2 47.Kf3 Ra2 48.g3+–) 47.Nb7 (better is 47.Na6 Rb2 48.Kd3+–) 47...Ke5 (47...Kc7 48.Na5 Ra4 49.Nb3+–) 48.Na5 (better is 48.c5 Rb7 49.Bb7+–) 48...Ra4 49.Nc6 Kd6 50.g3 Kc5 (50...Ra2 51.Kf3 Ra3 52.Kg2+–) 51.Nd8 Rb4 (51...Ra2 52.Kf3 Ra3 53.Kg2+–) 52.Ne6 Kd6 53.c5 Kd7 (53...Ke7 54.c6+–) 54.Nf8 (54.Nf8 Ke7 55.Nh7+–) 1–0. Heinzel,Peter (1940) – Sennholz,Michael (1635), Dortmund Germany, Sparkassen Open–B, 2016.

8.d3 Qe7 9.c5 Bc7 10.Nh4 Bg6 11.Nd2 e5 (11...Kd8 12.0-0=) 12.0-0 (12.Ng6 hg6 13.d4 Rh7=) 12...e4 (12...0-0-0 13.d4=) 13.de4 de4 (13...Ne4 A) 14.Ng6?? Bh2 (14...hg6?! 15.h3=) 15.Kh1 hg6–+; B) 14.Ndf3 Ne5 B1) 15.Ng6 Nf3 (15...hg6?! 16.h3=) 16.gf3 Qg5 17.Kh1 hg6 18.f4 Qh4 19.Bh5 Rh5 20.Qh5 gh5 21.f3 Ng3 22.Kg1 Nf1 23.Rf1 Kd7 24.Rf2 Re8 25.Bd4 Bf4 26.ef4 Qf4 27.Kg2 Re6 28.Bb2 Rg6 29.Kf1 Qc4 30.Ke1 Rg1 31.Kd2 Qb3 32.Bc3 d4 33.Rf1 Qc3 34.Ke2 Qe3 35.Kd1 Rf1 36.Kc2 Qc3; B2) 15.Be5 Be5 16.Ne5 Qe5 17.Qd4 Qd4 18.ed4=) 14.Nc4+= 0-0 (14...0-0-0 15.Nd6 (< 15.Ng6 hg6 16.Nd6 Kb8=+) 15...Kb8 16.Nhf5+=) 15.Nd6 Bd6 (15...b6 16.Qd4+=) 16.Qd6 Qd6 17.cd6 Rad8 18.b5 c5 (18...Nb6 19.Rfd1 Nfd5 20.a4+/–) 19.Rac1+/– b6 (19...Rfe8 20.Rfd1+/–) 20.Ng6 (20.Rfd1 Rfe8+/–) 20...hg6 21.Rfd1 Rfe8 22.h3 Ne5 (22...g5 23.Rd2+/–) 23.f4 ef3 24.gf3 Re6 25.Rd2 Ned7 26.e4 Ne8 (26...g5 27.Kh1+/–) 27.Rcd1 Nf8 (27...g5 28.Kf2+/–) 28.e5 Nd7? (better is 28...g5 29.Bc4 Rh6+–) 29.f4+– g5 (29...Nf8 30.Bc4+–) 30.Bg4 (30.Bc4 gf4 31.Be6 fe6+–) 30...gf4 31.Be6 fe6 32.Rg2 (32.Rf1 g6+–) 32...Kh7 (32...a6 33.ba6 Ra8+–) 33.Rf1 Nf8 34.Rf4 Ng6 35.Rf7 Ra8 36.Rg4 (36...Kh6 37.Rb7+–; 36.d7 Nc7 37.h4 Kg8 38.d8Q Rd8 39.Rc7 Rd1 40.Kh2 Kh7+–) 1–0. marekt – SWAT_TEAM, ChessWorld.net, 2004.

8.d4 a6 9.c5 Bb8 =.

8.d4 a6 9.Nbd2 Ne4 10.0-0 0-0 11.Qe1 Qf6 12.Ne4 Be4 13.Nd2 Qh6 14.f4 f5 15.Ne4 fe4 16.Kh1 Kh8 17.b5 (17.c5 Be7=) 17...g5 (17...ab5 18.cb5 c5 19.dc5 Nc5 20.Qg3=) 18.g3 (18.c5 Be7 19.bc6 bc6+=) 18...gf4 19.gf4 Rg8 (19...ab5 20.cb5 cb5 21.Bb5=) 20.ba6 ba6 21.Rg1 Rg1 22.Qg1 Rg8 23.Qf2 Rb8 24.Bd1 Be7 25.Ba4 Bh4 26.Qe2 Nb6 27.Bc6 (27.Bb3!?=) 27...Nc4–/+ 28.Bc1 Rg8 29.Ra2 Qg7 30.Qf1 Be7 31.Ba4 Qf8 32.Bd7 Qf5 33.Ba4 Nd6 (33...Rb8 34.Qg1–/+) 34.Rg2 (34.Qa6?? Qh3 35.Qe2 Nf5–+) 34...Rg2 35.Qg2 Nc4 36.Bd1 Na3 (better is 36...Ba3 37.Ba3 Na3–/+) 37.Bg4= Qg6 38.Qh3 Nc2 39.Be6 Ne1? (better is 39...Nb4 40.f5 Qg5+=) 40.Bd5+– Nd3 41.Qc8 Kg7 42.Qg8 Kf6?? (42...Kh6 43.Qg6 hg6+–) 43.Qe6 Kg7 44.Qe7 Kh6 45.Qh4 Kg7 46.Ba3 Qb6 (46...h5+–) 47.Qg5 (47.Qg5 Qg6 48.Qe7 Kh6 49.h3+–; 47.Qe7 Kh8 48.Qf8) 1–0. Wiezer,Siegfried (2030) – Coder,Thorsten (1985), Schneeberg op, 2009. (=1.Nf3 d5 2.b4 c6 3.e3 Bf5 4.a3 e6 5.c4 Bd6 6.Bb2 Nf6 7.Be2 Nbd7)

8.d4 a6 9.Nbd2 Ne4 10.0-0 Qf6 11.c5 (11.Ne4 Be4 12.c5 Bc7=) 11...Bc7 12.a4 (12.Ne4 Be4 13.Nd2 Bf5=) 12...g5 (12...a5 13.Nb3=) 13.b5 (13.Ne4 Be4 14.Nd2 Bf5=) 13...g4 (13...Nec5 14.bc6 bc6 15.Qc1=) 14.bc6 (14.Ne4 de4 15.Ne1 Qh6+=) 14...bc6= 15.Ne4 Be4 16.Nd2 Bh2 17.Kh2 Qh4 18.Kg1 Bg2 19.Kg2 (19.f4 Qg3 20.Qe1–+) 19...Qh3= 20.Kg1 Rg8 21.Qe1 Rg6 (22.Ne4 Rh6 23.Nf6 Nf6 24.Ba6 Qh2) 0–1. Lebel,Patrick (2145) – Arwanitakis,Michael (2265), 22nd ECU Club Cup, 2006.

8.d4 dc4 9.Bc4 0-0 10.0-0 =+.

8.d4 dc4 9.Bc4 a5 10.ba5 Qa5 11.Bc3 =+.

8.d4 Bc7 9.0-0= Qb8 (9...dc4 10.Bc4 0-0 11.Nc3=) 10.h3 (10.cd5 cd5 11.Nc3 a6=) 10...h6 11.Nc3 g5 (11...dc4 12.Bc4 0-0 13.b5=) 12.Ne1 (12.cd5 ed5 13.b5 a6 14.bc6 bc6+=) 12...g4 (12...dc4!? 13.Bc4 g4=) 13.hg4+= Bh7 14.cd5 ed5 15.f4 (15.Rc1 Rg8+/–) 15...Ke7 (15...Ne4 16.Ne4 Be4 17.Nd3=) 16.Nd3 Qg8 17.Nf2 (17.Nc5 Nc5 18.dc5 Re8+/–) 17...Re8+= 18.a4 Kd8 19.Qd2 Ne4 (19...Qf8 20.b5+=) 20.Nfe4 Be4 21.Ne4 Re4 22.b5 f5 (better is 22...Nf6!?+=) 23.Bd3 Nf6 24.gf5 Qg4 (24...Re7 25.Rac1 Qg3 26.Rf3+– (26.bc6 Ng4 27.Rfe1 Qh2 28.Kf1 Qh1 29.Ke2 Qg2 30.Kd1 Qf3 31.Kc2 bc6–/+)) 25.Rac1 (25.bc6 bc6 26.Rfc1 Ree8 27.Rc6 Ne4 28.Be4 Re4 29.Rc7 Kc7 30.Qa5 Kb8 31.Qb5 Ka8 32.Qc6 Kb8+–) 25...Rg8 26.Rf2 (better is 26.Be4!? Ne4 27.Qc2+–) 26...Qg3+/– 27.Be4 Ne4 28.Qe2 Kd7? 29.bc6 bc6 30.Qc2 Kd8? 31.Re2 Ng5 32.Rf2 Ne4+/– 33.Qe2 Qh3?? 34.Rf3 Qf5 35.Rc6 h5 36.Qc2 Rg7 37.Rh6 Qg4 38.Rh8 Kd7 39.Qe2 Ng3 40.Qb5 Ke6 41.Qe8 (41...Re7 42.Rh6 Kf5 43.Qf8 Ke4 44.Qe7 Kd3 45.e4 Qf3 46.Qa3 (46.Qc7?? Ne2 47.Kh1 Qf1 48.Kh2 Qg1 49.Kh3 Qh1) 46...Kd2 47.Qf3 Bd6 48.Qf2 Ne2 49.Kf1 Kc2 50.Qe2 Kb3 51.Rd6 de4 52.Qb5 Kc2 53.Rc6 Kb1 54.Rc1 Ka2 55.Ra1) 1–0. Labahn,Wolfgang – Siol,J, Paderborn GER, 1992.

8.d4 Ne4 9.0-0 g5 (9...dc4 10.Bc4 a5 11.b5=) 10.cd5 ed5 11.Ne5 (11.Nc3 Nc3 12.Bc3 Qf6=) 11...Qc7 12.f4 (12.f3 A) < 12...Ne5 13.de5 Be5 14.Be5 Qe5 15.fe4+/–; B) 12...Be5? 13.de5 (13.fe4 Bh2 14.Kh1 Be4–/+) 13...Ne5 14.fe4 Be4 15.Nc3+–; C) 12...Nef6 13.f4 gf4 14.ef4 Qb6=) 12...gf4 13.ef4 (< 13.Rf4 Ne5 (13...Be5?! 14.de5 Be6 15.Nd2=) 14.de5 Be5 15.Be5 Qe5–/+) 13...Ndf6 (13...Rg8 14.Nd2=) 14.Nd2 0-0-0 15.Rc1 Kb8 (15...Nd2 16.Qd2 Ne4 17.Qe3=) 16.Nb3 (16.Ne4 Ne4 17.b5 c5 18.dc5 Bc5 19.Bd4 f6 20.Bc5 Nc5 21.Nc6 bc6 22.Rc5 Qb6+/–) 16...h5 17.Nc5 (better is 17.b5+=) 17...Ng4? (17...Bc5 18.dc5 Rhg8 19.Bh5+=) 18.Rf3?? (better is 18.Nc6!? Qc6 19.Ne4+/–) 18...Qe7 (18...Bc5 19.bc5 f6 20.Nd3=+) 19.Qa4 Ne5 20.fe5+/– Bc5 21.dc5?? Bg4–/+ 22.b5 Bf3 23.Bf3 Nc5 24.Qb4=+ b6 25.bc6 Qg5 26.c7 Kc7 27.Rc5 bc5 28.Qc5 Kb8 29.Qb5 Kc7 30.Qc5 Kb8 31.Qb5 ½–½. epiglotis (2460) – iozeph (2490), net–chess.com, 2003.

8.d4 Ne4 9.Nbd2 Qf6 10.Qb3 0-0 11.h3 (11.0-0 Nd2 12.Nd2 Qh6=) 11...Qh6 12.Rg1 Nd2 13.Nd2 Nf6 14.g4 Be4 15.g5 Qh3?? (better 15...Qg6=) 16.gf6+- g6 17.Ne4 de4 18.c5 Bh2 19.Rf1 (19.Rg4 Bc7 20.Qc2 h5 21.Re4 Rfd8+-) 19...e5 (19...Bc7 20.b5+-) 20.0-0-0 (20.d5 Rfd8 21.dc6 bc6+-) 20...ed4 21.Bd4 a5 22.Bc4 (22.b5 cb5 23.Qb5 Rfc8+-) 22...ab4 23.ab4 Qf3 (23...Bc7 24.Qc2 Qf3 25.Rh1+-) 24.Qc2 (24.Rh1 Qg2+-) 24...Ra3 (24...Rfd8 25.Bc3 Kf8 26.Bf7 Rd1 27.Rd1+-) 25.Be2 (25.Rh1 Bc7+-) 25...Qf5 (25...Qg2 26.Bb2 Raa8 27.Bc4+-) 26.f3 Rfa8 27.fe4 (better 27.Qe4 Qe4 28.fe4+-) 27...Qe6 (27...Qg5 28.Qd2 Ra1 29.Ba1 Ra1 30.Kb2 Be5 31.Kb3 Rd1 32.Rd1 Bf6+-) 28.Bc4 Qh3 29.e5 (29.Rh1 Ra1 30.Kb2 Rd1 31.Rh2 Qg3 32.Bf7 Kf7 33.Rh7 Kg8 34.Rg7 Kf8 35.Qd1 Qg2 36.Kc1 Qa2+-) 29...Re3 (29...Ra1 30.Kb2 Rd1 31.Rd1+-) 30.e6 (better 30.Rh1 Re5 31.Rh2 Qa3 32.Bb2 Qe3 33.Kb1 Re6+-) 30...fe6 (30...Re6 31.Be6 fe6 32.f7 Kf8 33.Qd2+-) 31.f7 (31.Rh1 Rea3 32.Qh2 Qh2 33.Be6 Kf8 34.Rh2 h5+-) 31...Kf8 32.Be3 (32.Qf2 Re5 33.Qf6 Qh6 34.Kc2 Qg7 35.Be5 Qf6 36.Bf6 Bf4 37.Rf4 e5 38.Rd7 ef4 39.Be5 g5 40.Bd6 Kg7 41.f8N Kf6 42.Rf7) 32...Qe3 33.Rd2 (better 33.Qd2 Qd2 34.Kd2+-) 33...Ra1-+ 34.Kb2 (34.Qb1 Rb1 35.Kc2 Rf1 36.Bf1-+) 34...Be5 (34...Qa3) 35.Rd4 (35.Qc3 Qc3) 35...Bd4 (35...Qa3) 36.Qc3 Qc3 0-1. CronusCR (2060) - MagicAndy (2520), Hourly Bullet Arena, lichess.org, 2017. (=1.a3 c6 2.b4 d5 3.Bb2 Nf6 4.e3 Bf5 5.Nf3 e6 6.Be2 Nbd7 7.c4)

8.d4 h6 9.Nbd2 0-0 10.0-0 Re8 11.c5 Bc7 12.Ne5 Ne5 13.de5 Nd7 14.Nf3 (14.f4 b6=) 14...Be4 (14...Bg4!?–/+) 15.Nd2= Be5 16.Be5 Ne5 17.Ne4 de4 18.Qc2 f5 19.Rfd1 Qg5 20.Rd6 Nf7 21.Rd7 Rab8 22.Qc3 Re7 23.Rad1 Rbe8 24.Bc4 Rd7 25.Rd7 Re7 26.Qd4 Kf8 27.g3 Ke8 28.Re7 Ke7 29.a4 Qf6 30.Be2 (30.Kg2!?–/+) 30...Qd4–+ 31.ed4 e5 32.de5 Ne5 33.Kf1 Ke6 34.Ke1 Kd5 35.Kd1 (35.Kd2–+) 35...Nd3 36.Bd3 ed3 37.Kd2 Kc4 38.b5 cb5 39.ab5 Kb5 40.Kd3 Kc5 41.h4 a5 42.Kc3 a4 43.f3 b5 44.g4 f4 (44...f4 45.g5 b4 46.Kd3 a3–+) 0–1. Bartle,Georg (1720) – Krebel,Andreas (1750), Baden–ch AT1, 2007.

8.cd5 cd5 9.Nc3 a6 10.0-0 e5 11.Nh4 Be6 12.f4 ef4 13.ef4 Bf4?? (better is 13...d4 14.Na2 Qb6+=) 14.Rf4+/– g5 15.Rf6! gh4?? (15...Nf6 16.Nf3 Combination; 15...Qf6 16.Na4 Decoy) 16.Nd5!+– Nf6 (16...Bd5 17.Rd6 Decoy) 17.Bf6 Qd5 18.Bh8 1–0. Pcmvr – MMT, playchess.de, 2004.

8.Nh4 Bb1 9.Rb1 0-0 (9...dc4 10.Bc4 0-0 11.Nf3+=) 10.0-0 (10.c5 Bb8=) 10...a5 (10...dc4 11.Bc4 b5 12.Bd3=) 11.g3 (11.c5!? Bc7 12.Ra1=) 11...ab4+= 12.ab4 dc4 13.Bc4 b5 14.Bd3 Qe7 (14...Bb4 15.Bf6 Nf6 16.Bh7 Nh7 17.Rb4+=) 15.Qc2 Rfc8 16.Bc3 (16.Ra1 Ra1 17.Ra1 Qf8+=) 16...g6 17.e4 e5 18.Rfe1 Nb6 (18...Ra4 19.Qb2+=) 19.f4 Nfd7 (worse is 19...ef4 20.e5 fg3 21.hg3+/– (21.ef6?! gh2 22.Kh1 Qc7=)) 20.f5 (better is 20.Nf3!?=) 20...c5–/+ 21.fg6 hg6 (worse is 21...fg6 22.Bb5 cb4 23.Qb3 Kg7 24.Bb4+=) 22.Qd1 cb4 23.Ba1 Nc4 24.Bc2 (24.Nf3 Bc5 25.Kg2 Qd6–/+) 24...Na3 25.Bb3 Nb1–+ 26.Qg4 Rc4 27.Rb1 Nf6 28.Qf3 Kg7 29.d3 Rc7 30.Bb2 Rac8 31.Kh1 Rc3! 32.Bc3 bc3 33.Rf1? Ba3 34.Nf5? gf5 35.Qf5 Rc6 36.Qg5 Kf8 37.Rf5 c2 38.Bc2 Rc2 39.Rf6 Rc1 40.Kg2 Rc2 41.Kh1 Qb4 42.Rf1 Qd6 43.Qh5 Qe6 44.Qh4 Ke8 45.Qh8 Ke7 46.Qb8 Bd6 47.Qb7 Kf8 48.Rf5 Qa2 (48...Qa2 49.Qb8 Bb8 50.Rf2 Rf2 51.Kg1 Rh2 52.d4 Qf2) 0–1. Filippov,An (2500) – Alavi,Sayed Javad (2365), WJun Yerevan ARM, 2006. (=1.a3 Nf6 2.b4 d5 3.Bb2 Bf5 4.Nf3 e6 5.e3 Bd6 6.c4 c6 7.Be2 Nbd7)

8.Nh4 Bg6 9.Ng6 hg6 10.g3 Ne4 (10...dc4 11.Bc4 Rc8 12.d4=) 11.d3 (11.cd5 ed5 12.Bg7 Rh7+=) 11...Nef6= 12.cd5 ed5 13.Nc3 Qe7 14.e4 de4 15.Ne4 Ne4 16.de4 Qe4 17.0-0 0-0-0 18.Bf3 (18.Bg4 f5 19.Bg7 Rh7=+) 18...Qe7 (18...Qe6 19.Bg7 Rh7 20.Re1=) 19.Re1 (19.b5 Nc5 20.Qc2 cb5 21.Bg7 Rh7+=) 19...Ne5–/+ 20.Bg2 Qg5 (20...Bb4 21.Re5 Rd1 22.Rd1–/+) 21.Qc2 (21.Qe2!? Ng4 22.h4+=) 21...Qh5=+ 22.h4 Nf3 (22...Rhe8 23.b5 Nf3 24.Bf3 Qf3 25.Bg7 Bg3 26.fg3 Qg3 27.Kf1 Qh4 28.Re2=+) 23.Bf3= Qf3 24.Bg7 Rh4 25.gh4 Qg4 26.Kf1 Qh3 27.Ke2 Re8 28.Kd1 Qf3 29.Re2 Bf4 30.Qc4 b5 31.Qf4 Qe2 (31...Qf4? 32.Re8 Kd7 33.Re2+–) 32.Kc1 Re4?? (better 32...Rd8 33.Bd4 Qc4 34.Kb2 Rd4–+ (34...Qd4?! 35.Qd4 Rd4 36.Re1–+)) 33.Qd2+– (33.Qf7?? Rg4 34.Qe8 Qe8–+) 33...Qc4 34.Bc3 Re2 35.Qd4 Re1 36.Kb2?? (better 36.Kc2 Qe2 37.Qd2 Qe4 38.Qd3 Qe2 39.Qe2 Re2 40.Kb3 Rf2 41.a4+–) 36...Re2= 37.Kc1 Re1 38.Kc2 Re2 39.Kd1 Qe6 40.Bd2 (40.a4!? Re4 41.Qa7 Qd5 42.Kc1 Qd3+–) 40...Re4+– 41.Qh8 (41.Qa7 Qb3 42.Kc1 Rc4 43.Bc3 Rc3 44.Kd2 Qb2 45.Ke1 Qa1 46.Ke2 Qa2 47.Kf1 Qc4 48.Ke1 Rc1 49.Kd2 Qc3 50.Ke2 Re1) 41...Kb7 42.Rc1 (42.Be3!?+–) 42...Qb3+= 43.Rc2 Qb1? (better 43...Qf3!? 44.Kc1 Qa3 45.Qb2 Qb2 46.Kb2 Rh4+=) 44.Bc1+– Qb3 45.Qc3 Qd5 46.Rd2 Qe6 47.Qd3 Re1 (47...Ka6 48.Re2 Re2 49.Qe2+–) 48.Kc2 Qa2 49.Bb2 Rb1?? (49...Ka6+–) 50.Qd7 Kb6 51.Qd8 Ka6 52.Qa5 (52.Qa5 Kb7 53.Rd7 Kb8 54.Qd8) 1–0. Farouqi,Nik Ahmad (2080) – Wan Abd Rahim,MA (1740), Festival Catur Kelantan, 2019.

8.d4 0-0

9.0-0 a6 10.Nbd2 Qb8 11.h3 Bg6 12.Nh4 Be4 13.Nhf3 (13.f3 Bg6+=) 13...Bf5 (13...Bg6 14.c5 Bc7 15.Qa4=) 14.Nb3 (14.c5 Bc7=) 14...Bg6 (14...dc4 15.Bc4 Rd8 16.Bd3=) 15.Bd3 (15.cd5 Nd5 16.Nc5 Rd8=) 15...Bd3 16.Qd3 Ne4 17.Rac1 (17...Ndf6 18.Nc5=). Kreuzer,Uwe – Mephisto ROMA, Freie Partie, 1991.

9.0-0 dc4 10.Bc4 a5 11.b5 =+.

9.0-0 h6 10.Nh4 Bh7 11.c5 Bc7 12.Nf3 Qe7 13.Nbd2 Ne4 14.Ne4 Be4 15.Bd3 Bd3 16.Qd3 e5 17.e4 de4 18.Qe4 Nf6 19.Qf5 g6 20.Qh3 e4 21.Rfe1 h5 22.Ne5 Rad8 23.Qb3 Rd5 24.Qa4 a6 25.Qc2 Rfd8 26.f3 ef3 27.Ng6 f2 28.Qf2 1–0. Machete99 (2230) – IAlwaysWin (1925), ICC, 2002.

9.0-0 Ne4

10.Nbd2 Qe7 11.Qb3 Bg4 12.Rfe1 (12.Bd3 Ndf6=) 12...Nd2 13.Nd2 f5 (13...Be2 14.Re2 Qh4 15.Nf3=) 14.Nf3 (14.f3 Qh4 15.Nf1 Bh5=) 14...Bf3 (14...Nf6 15.c5 Bc7 16.Rad1=) 15.Bf3 (< 15.gf3 Qh4 16.f4 Rf6–/+) 15...Nf6 16.cd5 (16.g3 Ne4 17.Red1 Qg5=) 16...cd5 (16...ed5 17.b5=) 17.Qd1 (17.Rec1 Rfc8=) 17...Ne4 18.g3 Rf6 (18...b5 19.Qd3=) 19.Bg2 Rh6 (19...Rf7 20.f3 Nf6 21.Qd3=) 20.f4 (20.f3 Nf6=) 20...Nf6 (20...Qd7 21.Qe2=) 21.Bf3 (21.Re2 a5=) 21...Rg6 (21...a5 22.Qa4=) 22.Re2 Nd7 (22...a5 23.b5=) 23.Rg2 (23.Rc2 Nb6=) 23...Nb6 24.Qb3 (24.Be2 Rc8=) 24...Nc4=+ 25.b5 Rf6 26.Rc2= Rff8 27.Be2 Na5 28.Qa2 Rfc8 29.Rac1 Qd8 30.Bc3 Nc4 31.Bc4 Rc4 32.Bb2 Rc2=+ 33.Rc2 Rc8 34.Bc1 Rc7 35.a4 Qc8 36.Rc7= Qc7 37.Ba3 Ba3 38.Qa3 b6 39.h3 Kf7 40.Kg2 h6 41.g4 g6 42.Kf3 Qc4 43.gf5 gf5 44.Qd6 Qf1 45.Kg3 ½–½. Derezuk,A – Krivobokov,S, Tula, 2002.

10.Nbd2 Qf6

11.Re1 Rfe8

12.Rc1 a5 13.c5 Bc7 14.Ra1 ab4 15.ab4 b6 16.cb6 Nb6 =.

12.Rc1 Nd2 13.Qd2 Be4 14.Red1 Rad8 15.Qc3 Qh6 16.h3 Qg6 =.

12.Rc1 Red8 13.Ne4 de4 14.Nd2 Qh4 15.f4 Nf6 16.Rf1 a5 =.

12.Rc1 Bg6 13.Qb3 Rad8 14.b5 Nd2 15.Nd2 Rc8 16.c5 Bc7 =.

12.c5 Bc7 13.Ne4 Be4 14.Qb3 (14.Bd3 Red8 15.Qc2 Bd3 16.Qd3 a5=) 14...Qh6 (14...Qg6 15.b5 Nf6 16.Rec1 Rec8=) 15.g3 (15.h3 Qg6 16.b5 Ba5=) 15...e5 (15...Qf6 16.Nd2 Bf5=+) 16.Nd2 ed4 (16...Bf5=+) 17.Ne4 de3 18.Nd6 ef2 19.Kf2 Qh2 20.Kf1 Qh1 (20...Bd6!? 21.cd6 Re6=+) 21.Kf2= Qh2 22.Kf3 Bd6 23.cd6 Qh5 24.Kf2 Qh2 25.Kf1 (25.Kf3 f6=+) 25...Qh1 (25...Re6 26.Bg4=+) 26.Kf2 Qh2 27.Kf1 Qh3 28.Kg1 Qe6 29.Ba6 Qd6 (29...Qe1? 30.Re1 Re1 31.Kf2+–) 30.Bb7 Rab8 31.Re8 Re8 32.Rc1 Nb8 33.Bd4 Qc7 34.Ba8 h5 35.Bf2 Re6 (better is 35...Rd8!?+–) 36.Qd5! Qe7 (36...cd5 37.Rc7) 37.Qh5 g6 38.Qh4 Qd7 (38...Qh4 39.gh4 a6 40.Re1+–) 39.Bd4 f6 40.Bf6 (40...Qh7 41.Qf4+–). pierre – attila_turzo, internet, 2008.

12.Ne4 Be4 13.Nd2 Bf5 14.Rc1 Qh6 15.f4 Red8 16.c5 Be7 =.

12.c5 Bb8

13.a4 Bc7 14.Ne4 Be4 15.Nd2 Bf5 16.a5 Qg6 =.

13.Qa4 Nd2 14.Nd2 Qh6 15.Nf3 Be4 16.h3 Qg6 =.

13.Qb3 Nd2 14.Nd2 Qh6 15.f4 Qg6 16.b5 Bc2 =.

13.Rc1 Nd2 14.Qd2 Be4 15.b5 Bf3 16.bc6 bc6 =.

13.Ne4 Be4 14.Nd2 Bf5 15.Rc1 Qg6 16.Qa4 e5 =.

7.Be2 Be7

8.0-0 dc4 9.Bc4 0-0 10.Nd4 =+.

8.0-0 dc4 9.Bc4 Nb6 10.Be2 =.

8.Nc3 0-0 9.Nh4 Qc7 (better is 9...Bg4! 10.Bg4 Ng4 11.Qg4 Ne5+=) 10.Nf5+/– Bd6?? (better is 10...ef5 11.cd5 cd5+/–) 11.Nd6+– Qd6 12.Qc2 dc4 13.Bc4 1–0. combijack (1910) – ouroborus2012 (1725), gameknot.com, 2013.

8.Nc3 dc4 9.Bc4 0-0 10.0-0 =.

8.d3 0-0 9.Nbd2 (9.Nh4 a5=) 9...Qc7 (9...a5 10.ba5 Nc5 11.Ne5+=) 10.Nh4= Bg6 (10...dc4 11.Nf5 ef5 12.dc4+=) 11.Ng6+= fg6 12.Nf3 (12.0-0+=) 12...Rad8 (12...dc4 13.dc4 c5 14.Ng5+=) 13.Nd4 (13.Ng5 Rfe8 14.Ne6 Bb4 15.ab4 Re6 16.Ra7 dc4 17.dc4 Nc5+/–) 13...Qe5+– 14.Qb3 (14.Rb1!? Rde8 15.Nc6+–) 14...dc4+/– 15.dc4 (15.Qc4?! Nd5+=) 15...Kh8? (better is 15...Ne4!? 16.Nc6! Qd6+/–) 16.Nc6!+– Qf5? (16...bc6 17.Be5 Eliminates the defender e5) 17.Ne7 Qg5 18.Bf3 Ne5 19.Be5 (19.h4 Nf3 20.gf3 Qg2+–) 19...Qe5 20.0-0 Qc7 21.Ng6 hg6 22.c5 e5 23.Qc2 Qf7 24.Rac1 g5 25.h3 g6 26.Rfd1 Kg7 27.Rd8 Rd8 28.Qc4 Qc4 29.Rc4 Kf8 30.c6 bc6 31.Rc6 Ke7 32.Rc7 Rd7 33.Rd7 Kd7 34.b5 Kc7 35.a4 Kb6 36.Bd1 Nd5 37.Bc2 Ne7 38.Kf1 Kc5 39.Ke2 Kc4 40.Kf3 (40.Kf3 Kc3 41.Bb1+–) 1–0. Skaug,Thorbjorn – Johansen,Bjorn Berg, NM Roros, 2002.

8.d3 dc4 9.dc4 c5 10.Qa4 =.

8.cd5 cd5 9.0-0 (9.Nh4 Bb1 10.Rb1 (10.Qb1 a5 11.0-0 ab4 12.ab4 Ra1 13.Ba1) 10...a5 11.b5 Bd6 12.0-0 0-0 13.Nf3) 9...0-0 (9...a5 10.Nh4 (10.ba5 Qa5 11.Nd4 Bg6 12.f4 Bc5 13.Nb3) 10...Bb1 11.Qb1 ab4 12.ab4 Ra1 13.Ba1; 9...Bg4 10.Nc3 (10.Qb3 Rc8 11.Nc3 0-0 12.Rac1 Bf3 13.Bf3; 10.d3 0-0 11.Nc3 a5 12.b5 Rc8 13.h3; 10.Bf6 Bf6 11.d4 0-0 12.Nbd2 a5 13.Qb3) 10...0-0 11.Rc1 a5 12.b5 Rc8 13.d3) 10.d3 (10.Nh4 Bb1 11.Rb1 a5 12.b5 Bd6 13.Nf3; 10.Nd4 Bb1 11.Rb1 a5 12.b5 Rc8 13.Rc1) 10...Rc8 (10...Bg4 11.Nbd2= a5 12.ba5 Qa5 13.Qb3) 11.Nh4 Bg6 12.Nd2 (12.Ng6 fg6 13.f4= (13.Qa4 Bd6=)) 12...Rc7 (12...a5 13.Ng6= 0.19/7 (13.ba5 Qa5 14.Ng6 fg6 15.Nb3=); 12...Bd6 13.Ng6) 13.Ng6+= hg6 14.Rc1 Qc8 (14...Rc1 15.Qc1 a5 16.ba5 Qa5 17.Nb1+=) 15.Nf3 (15.Qa4 a6+/–) 15...Nb6 (15...Rc1 16.Qc1 Qb8 17.Qa1+=) 16.Qb3+/– Qd7 17.Rc7 Qc7 18.Rc1 Qd7 19.Ne5 Qd6 20.Bd4 Rc8 21.Rc8 Nc8 22.Qc3 Nb6 23.Bd1 Kh7? (23...Bd8 24.a4+/–) 24.Nf3?? (better is 24.Nf7 Qd7 25.Bb6 ab6 26.Ng5 Kh6 27.Qe5+–) 24...Nh5 (24...Nfd7 25.Be2+= (worse is 25.Bg7 f6–/+)) 25.g4 (25.Bb6!? Qb6 26.Qc8 f5+–) 25...Nf6 26.Ng5 (26.Ne5!? Kg8 27.f4+/–) 26...Kg8+= 27.Bb6 Qb6 28.Qc8 Bd8 29.h3 (29.Be2 Qc7 30.Qc7 Bc7=) 29...Qc7= 30.Qc7 ½–½. Schmidbauer,Josef – Poeschl,Rainer, Niederbayern–ch, 2005.

8.cd5 Nd5 9.Nc3 0-0 =.

8.cd5 Nd5 9.d3 Bf6 =.

8.h3 0-0 (8...dc4 9.Bc4 0-0 10.0-0=+) 9.d3 (9.c5 a5=+) 9...Rc8 (9...dc4 10.dc4 c5 11.b5=+) 10.Nbd2 (10.Nh4=) 10...Re8 (10...a5 11.Qb3=) 11.0-0 (11.g4 Bg6 12.g5 Nh5+–) 11...a6 (11...a5!?=) 12.Nh4 (12.g4 Bg6 13.g5 dc4 14.dc4 Nh5+–) 12...Bg6 (12...dc4 13.dc4 Ne4 14.Nf5 ef5 15.Ne4 fe4 16.Bg4+=) 13.Ng6 hg6 14.f4 (14.c5 b6+=) 14...Nh7 (14...dc4 15.Nc4 c5 16.bc5 Nc5 17.Bd4+=) 15.Nf3 (15.Rb1 Bf6+=) 15...Bf6 (15...c5 16.Qa4+=) 16.Ne5 (16.Bf6 Nhf6 17.c5 e5+=) 16...Ne5 (16...Be5!? 17.fe5 Qg5+=) 17.fe5+– (17.Be5?! Be5 18.fe5 Qg5=) 17...Be7 (17...Bg5 18.Bd4+–) 18.Qb3 (18.c5 b6+–) 18...f6 (18...c5 19.bc5 dc4 20.Qc4 Rc5 21.Qg4+–) 19.ef6 Bf6 (19...gf6 20.c5+–) 20.d4 (20.c5 Bb2 21.Qb2 Qg5+–) 20...Rf8 (20...e5 21.Bd3 e4 22.Be2+–) 21.Rf2 (21.Qd3 Qe8+–) 21...Bh4 (21...Ng5 22.Rf4+–) 22.Rf8+– Qf8 23.Rf1 Qe7 24.Bd3 (24.Qd3 Rf8+–) 24...Bg5 (24...Qg5 25.Bc1+–) 25.Bg6 (25.Rf3 Rf8 26.Qd1 b5+–) 25...Be3?? (better 25...dc4 26.Qc3 Rf8 27.Rf8 Nf8+–) 26.Qe3+– 1–0. DEFFM – AlehkineAurelio, freechess.org, 2016.

8.0-0 0-0

9.c5 Bg4 =.

9.d3 a5 10.Qb3 =.

9.d3 b6 10.Nbd2 (10.Nd4 Bd6+=) 10...a5 (10...dc4 11.Nc4 c5 12.Nh4+=) 11.Qb3 (11.Nd4!? Bd6 12.ba5 ba5 13.cd5 cd5 14.Nf5 ef5 15.Rb1+=) 11...Bd6= 12.cd5 cd5 13.Nd4 Bg6 14.Rfc1 a4 15.Qc2 Nb8 (15...Qc8 16.f4=) 16.b5 (16.Nb5!?+=) 16...e5= 17.Nc6 Nc6 18.bc6 Bc7 (18...Qc7 19.Kh1=) 19.e4 (19.Nf3 Re8+=) 19...de4 20.de4 Bh5 (20...Ra5 21.f3=) 21.Bh5 Nh5 22.Nc4 Re8 (22...Qg5 23.Ne3+=) 23.Rd1 Qf6 24.Ne3 b5? (better 24...Nf4!?+–) 25.Nd5+– Qh4?? (better 25...Qd6+–) 26.Nc7 Nf4 (26...Qe7 27.Rd7 Qf8 28.Na8 Ra8 29.Be5+–) 27.Na8 Qg4 (27...Ra8 28.c7 Rc8 29.Be5+–) 28.g3 (better 28.f3 Qc8 29.Nb6 Qe6+–) 28...Nh3 29.Kg2 (better 29.Kf1 Ng5 30.Nc7 Qh3 31.Ke1 Rf8 32.Nb5 Nf3 33.Ke2 Qh5+–) 29...Nf4 30.Kf1 Qh3 31.Ke1 Ng2 32.Ke2 Qh5 33.Kd2 (better 33.Kf1 Qh2 34.Qd3 Ne3 35.Qe3 Qh3 36.Kg1 Qc8+–) 33...Qh6 34.f4! Rd8 (34...ef4 35.Kc1 Combination) 35.Kc1 (better 35.Ke2 Re8 36.c7 Nf4 37.Ke1 Ne6+–) 35...Rd1 36.Qd1 Qc6 37.Qc2 (37.Qc2 Qa8 38.Qg2 ef4 39.gf4+–) 1–0. Fortuny Profitos,Jordi – Ferran Rodriguez,Hector, Campionat Sub–16 Pla de Lleida, 2012. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 Nbd7 5.c4 c6 6.Be2 e6 7.a3 Be7 8.0-0 0-0)

9.d3 dc4 10.dc4 c5 11.Qa4 =.

9.d3 Qc7 10.Nbd2 (10.Nh4 Bd6=) 10...b6 (10...e5 11.d4 e4 12.Nh4+=) 11.Qb3 (11.Nh4 Bd6=) 11...Bd6 12.Qc3 Bg4 (12...e5 13.d4 Rfe8 14.de5 Ne5 15.Nd4=) 13.h3 Bf5 (13...Bh5 14.Rac1 c5 15.cd5 ed5 16.Nb3=) 14.g4 (14.e4 de4 15.de4+–) 14...Rfe8?? (better is 14...Bg6=) 15.gf5+– ef5 16.Rac1 (16.cd5 cd5 17.Qc7 Bc7+–) 16...Rac8 17.cd5 cd5 18.Qd4 Qb7 19.Qh4 h6 20.Qd4 Kh7 21.Qh4?? Be7?? 22.Qg3 Nh5 23.Qg2 Rg8 24.Ne5 Ne5 25.Be5 Nf6 26.Kh1 Qd7 27.Rg1 Rce8 28.Rc7 Qd8 29.Rgc1 Qa8 30.d4 Ne4 31.Ne4 fe4 32.Bb5 f6 33.Be8 Qe8 34.Bh2 Bd8 35.Rc8 Qe7 36.Qg3 Qe6 37.Qg4 f5 38.Qf4 Bg5 39.Qe5 Qg6 40.Rg8 Kg8 41.Rc8 Kh7 42.Qb8 Qf7 43.Be5 Bf6 44.Bf6 Qf6 45.Qa7 Qh4 46.Qd7 Qh3= 47.Kg1 Qg4 48.Kf1 Qd1 49.Kg2 Qg4 50.Kh2 Qh4 51.Kg2 Qg4 52.Kf1 Qd1 53.Kg2 Qg4 ½–½. Von Herman,Andrea – Zehner,Birte, BL2–NO, 1991.

9.d3 Bg6 10.Nh4 Rc8 (10...a5 11.Ng6 fg6 12.Bg4=) 11.Ng6+= hg6 (11...fg6 12.Nc3+=) 12.Nd2 a6 (12...c5 13.b5+=) 13.c5 b6 14.d4 b5 (14...a5 15.Qa4+=) 15.a4 Ra8 (15...Qc7 16.Bd3+/–) 16.Qc2 Re8 17.Ra3 Qc7 18.Rfa1 Qb7 19.Nb3 (19.Bc3 Kh7+/–) 19...Rec8 (19...Kh7 20.Bc1+/–) 20.Bd3 Bd8 21.Qb1 (21.Bc3 Bc7+/–) 21...Bc7 22.Qa2 a5? (better is 22...Nb8!?+/–) 23.Na5+– Ba5 (23...Qb8 24.g3 Ra5 25.ba5+–) 24.ab5 (24.ba5?! b4 25.Rb3 Ra5+–) 24...cb5 (Opening the a–file gets White a lot of play) 25.Ra5 Ra5 26.Qa5 Rb8 27.Qa7 Ne4 (27...Qc8+–) 28.Qb7 Rb7 29.f3 Nd2 30.c6 Rc7 31.cd7 Rd7 32.Bb5 Rb7 33.Ra8 (33.Ba6 Rc7+–) 33...Kh7 34.Ba6 Rb4 35.Bc3 Rb1 36.Kf2 Nb3 (36...Nc4 37.Bc4 dc4 38.Rc8+–) 37.Rb8 f5 38.Bc8 Nd2 39.Rb1 Nb1 40.Bb4 e5 41.de5 Kg8 42.e6 g5 43.e7 Kf7 44.Bd7 Nd2 45.e8Q Kf6 46.Qe6 1–0. fuiste – MIFAMA, ajedrez21.com, 2001.

9.d4 Be4 (9...dc4!? 10.Bc4 a5=+) 10.Nbd2= Bf3 (10...a5 11.cd5 cd5 12.Ne4 Ne4 13.ba5 Qa5 14.Qd3=+) 11.Nf3 Ne4 12.c5 f5 13.a4 White prepares b5 13...a6 14.b5 (14.Nd2 Qc7+=) 14...ab5 (14...Qa5 15.Qb3 Qc7 16.g3+=) 15.ab5+= Ra1 16.Qa1 f4 (16...Bf6 17.Qa3+=) 17.Qa7 (17.ef4 Rf4 18.Qa7 Qc8+–) 17...fe3+= 18.fe3 Qb8 19.b6 Qa7 20.ba7 Ra8 21.Ra1 b6?? (better 21...Bf6+=) 22.cb6 (better 22.Ne5 Ndc5 23.dc5 Bc5+–) 22...Nb6 23.Ne5 Bd6 24.Nc6 Nc8 25.Ba6 Na7 26.Bb7 Nc6 27.Ra8 (27.Ba8?! Ne7+–; 27.Bc6?! Ra1 28.Ba1 Kf7=) 27...Nb8 28.g3 (28.Bc6 h6+–) 28...Kf7 29.Kf1 Nd2 (29...g6 30.Ke2+–) 30.Ke2 Nc4 (30...Ne4 31.Ba3 Nd7 32.Bd6 Nd6 33.Ba6+–) 31.Bc3 Nb6 (31...Nd7 32.e4 Ndb6 33.Ra6+–) 32.Ra1 (32.Ra7!? Kf6+–) 32...N8d7 33.Rf1 (33.e4 de4 34.Be4 Nf6 35.Ra7 Be7+–) 33...Nf6 34.Kd3 Nc4 (34...Na4 35.Ba1+–) 35.Bc6 (better 35.e4 Ke7 36.e5 Be5 37.de5 Nd7+–) 35...Kg6 36.Bd7?? (36.Ra1 Ne4+–) 36...e5?? (better 36...Nd7 37.e4 Bc7–/+) 37.de5 (37.Bf5 Kg5+–) 37...Be5 38.Be5?? (better 38.Bf5 Kh6 39.Bd4+–) 38...Ne5=+ 39.Kd4 Ned7 40.h3 h5 41.Rf3 1–0. Bendega (2025) – RezaMasoumi1349 (1830), lichess.org, 2020.

8.Nc3 0-0

9.0-0 a5 10.b5 Nb6 11.bc6 bc6 12.Nd4 Qc7 (better is 12...Nc4!? 13.Bc4 dc4 14.Nf5 ef5+=) 13.Nf5+= ef5 14.Qc2 Bd6 15.Qf5 Rfe8 (15...Nc4!? 16.Bc4 dc4+=) 16.cd5+/– Bh2 17.Kh1 Nc4?? (better is 17...Be5 18.dc6 Qc6+–) 18.Qh3 (better is 18.Bc4 Re5 19.Qf3+–) 18...Nb2+= 19.Qh2 Qh2 20.Kh2 cd5 21.Ra2 Nc4 22.Rc1 Ne5 23.d4 Neg4 24.Kg3 h5 25.Bg4 hg4 26.Nb5 Rab8 27.a4 Rb6 28.Rac2 Ne4 29.Kg4 Ree6 30.Rc8 Kh7 31.Rh1 Kg6 32.f4?? Nf2–+ 33.Kf3 Nh1 34.g4 f5 35.gf5 Kf5 36.Nc7?? Rb2 37.Rf8 Rf6 38.Rf6 gf6 39.e4 de4 40.Ke3 Rb3 41.Ke2 Ng3 (41...Ng3 42.Kf2 Rf3 43.Kg2 Ne2–+) 0–1. Nilsson,Jon (1995) – Stovring,C (2085), 22nd North Sea Cup, Esbjerg DEN, 2007.

9.0-0 Nb6 10.cd5 (10.d3 dc4 11.dc4 a5=) 10...Nbd5 11.d3 (11.Nd5 Nd5 12.d3 Bg4=) 11...h6 (11...a5 12.e4 Nc3 13.Bc3 ab4 14.ab4 Ra1 15.Qa1=) 12.Rc1 (12.e4 Nc3 13.Bc3 Bg4+=) 12...Bg6 (12...a5 13.ba5 Bg4 14.Nd5 Nd5 15.Ne5 Be2 16.Qe2 Qa5 17.Nc4=) 13.g3 (13.Nd5 Nd5 14.Ne5 a5 15.ba5 Ra5 16.Ng6 fg6=) 13...Rc8 (13...a5 14.Nd5 Qd5 15.ba5 Ra5 16.e4=) 14.e4 (14.Ne5 Bf5=) 14...Nc7 (14...Nc3 15.Bc3 Bh5 16.Qd2=) 15.Na4 (15.Ne5 Bh7+=) 15...Qd7 (15...Nd7!?=) 16.Ne5+/– Qd8 17.Ng6 (17.Nc5 Bc5 18.bc5 Bh7+/–) 17...fg6+= 18.Qb3 Kh8 (18...Qd7 19.Nc5 Bc5 20.bc5+/–) 19.Nc5+/– Bc5 20.Rc5 (20.bc5 Qd7+/–) 20...Nd7 (20...Qd7 21.f4+=) 21.Rc2 e5 (21...Nf6 22.f4+/–) 22.a4 (22.d4 Qe7+/–) 22...Ne8 (22...Qe7 23.Bg4+=) 23.Bg4 (23.d4 ed4 24.Bd4 b6+/–) 23...Nef6+= 24.Bh3 (24.Bd7 Nd7 25.f4 ef4 26.Rf4 Rf4 27.gf4 Rc7+=) 24...Qe7 (24...g5 25.f4 gf4 26.gf4 ef4 27.Rf4 Qb6 28.d4+=) 25.Ba3 (25.f4 ef4 26.gf4 Rc7+/–) 25...Rc7 (25...Qd6 26.f4+=) 26.Rfc1 (26.b5 c5+=) 26...Rd8 (26...Qd6 27.Be6+=) 27.a5 (better is 27.b5 c5 28.Qe6+=) 27...Nb8? (better is 27...Qd6!?+=) 28.b5+/– Qe8 29.b6 ab6 30.ab6 (30.Qb6?! Na6 31.Rc3 g5+=) 30...Rf7 31.Be6 Rd3 White creates threats along the open d–file 32.Bf7 Rb3 33.Be8 Ne8 34.Bc5 (better is 34.Rd2!? Ra3 35.Rd8+–) 34...Nd7 (34...Nf6 35.Ra1 Na6 36.Rc4+=) 35.Rd1 (35.Ra2 Nef6 36.Ra7 Nc5 37.Rc5+/–) 35...Nc5 (better is 35...Nef6!?+=) 36.Rc5+/– Nf6 37.Re5 Rb6 38.Re7 Rb2? (better is 38...g5+–) 39.Rd8 Kh7 40.Rb8 (40.Rf8 Ne4 41.Re4 g5+–) 40...b5? (40...h5 41.Reb7 Rb7 42.Rb7 Ne4+–) 41.Rbb7 (41.Rf8 Ne4 42.Re4 g5+–) 41...Nh5 42.Rec7 (42.h4 Rb1 43.Kh2 Rb2+–) 42...Rc2 (42...Rb1 43.Kg2 Rb4 44.f3+–) 43.Rb5!! Nf6 (43...cb5 Exploits the pin 44.Rc2) 44.f3 (better is 44.e5 Nh5 45.e6+–) 44...Rc1 (44...Ne8 45.Rbb7 Nc7 46.Rc7=) 45.Kg2 (better is 45.Kf2 Ne8 46.Rbb7 Nc7 47.Rc7+/–) 45...Nh5?? (better is 45...Ne8 46.Rc8 Nd6+=) 46.Rb6 (46.Rbb7 g5+–) 46...Rc2 47.Kh3 c5 (47...Rc3 48.Rb8+– (worse is 48.Rcc6 Rf3 49.e5 Re3+–)) 48.Rbc6 (48.e5!? Rc3 49.Rb8 Rf3+–) 48...Rc3 49.Rc5 (49.Rf7!? Kg8 50.Rcc7 g5+–) 49...Rf3 50.Kg4 (50.e5 Re3 51.Rf7 Kg8+–) 50...Ra3 (50...Rf2 51.e5+–) 51.e5 Ra2 52.h3 (52.Rc2 Ra5 53.R7c5 Ra4 54.R2c4 Ra3+–) 52...Ra3 (52...Rd2 53.Rc3+–) 53.Rc3 Ra5 54.Re3 Kg8 (54...Ra8 55.Kf3+–) 55.Rc8 Kf7 (55...Kh7 56.Rd8+–) 56.e6 (56.Kf3 g5+–) 56...Ke7 57.Rc7 Ke8 (57...Kd8 58.Rf7 Ke8 59.Rb3 Rg5 60.Kh4+–) 58.e7 (58.Rb3!? Ra8+–) 58...Ra8 (58...Nf6 59.Kf3 Ra8+–) 59.Rf3 (better is 59.Re5+–) 59...Ra4–+ 60.Rf4 Nf4 61.gf4 Re4 (61...g5!?–/+) 62.h4 (62.Kf3 Re7 63.Rc8 Kd7+=) 62...Re7 (62...Re3 63.Rc8 Ke7 64.Rc7 Kf6 65.Rc6 Kf7 66.Rc7 Kg8 67.h5+=) 63.Re7 (63.Rc6 Kf7+=) 63...Ke7 64.f5 Kf6 65.fg6 Kg6 66.h5 Kf7 67.Kf5 Kg8 68.Ke5 Kf8 69.Kf4 ½–½. Reimer,K – Detzel, Hauenstein, 1991.

9.0-0 dc4 10.Bc4 Bd6 11.Rc1 =.

9.0-0 dc4 10.Bc4 Bd6 11.d4 =.

9.cd5 ed5 10.0-0 a5 =.

9.cd5 Nd5 10.0-0 a5 =.

9.h3 dc4 10.Bc4 Nb6 11.Be2 =+.

9.h3 h6 10.g4 (10.c5 e5=) 10...Bh7 (10...Bg6 11.c5=+) 11.g5= hg5 12.Ng5 dc4 13.Nh7 Nh7 14.Bc4 Ne5 15.Be2 Nd3 16.Bd3 Qd3 17.Qb1 (17.Rg1 Rfd8=) 17...Rad8 18.Qd3 Rd3 19.Ne4 f5 (19...Rfd8 20.Bd4=) 20.Nc5 Bc5 21.bc5 Rfd8 (21...Nf6 22.Rg1=) 22.Bd4 (22.Rg1 R8d7+=) 22...Rb3 (22...e5!? 23.Be5 Ng5=) 23.Ke2+= Nf6 24.Rhb1+/– Rb1 25.Rb1 Rd7 26.d3 Kf7+= 27.Be5 g6 28.f3 Kg7 29.e4 Kf7 30.Ke3 Ke7 31.Kf4 Nh7 32.d4 Kf7 33.h4 Kg8 34.ef5 ef5 35.h5+– gh5 36.Rg1 Kf8 37.Kf5 Rf7 38.Kg6 Rd7? 39.Kh5 Rd5 40.Kh6 Rd7 (40...b6 41.cb6 (< 41.Kh7 bc5 42.Rg5 Kf7 43.dc5 Rc5+–) 41...ab6 42.Kh7+–) 1–0. Welling,G – Bannon,B, Kona, 1998.

7.Be2 h6

8.0-0 Bd6 9.d3 0-0 10.Nbd2 Qe7 11.Qc2 Bh7 12.Rfe1 Rac8 13.c5 Bb8 14.e4 e5 15.ed5 cd5 16.Bf1 Rfe8 17.Rad1 Qe6 18.Ne5 Ne5 19.f4 Qf5 20.fe5 (20.Re5? Be5 (20...Re5?! 21.fe5 Ng4 22.Nf3+=) 21.fe5 Ng4–+) 20...Ng4 (20...Be5!? 21.Be5 Re5=) 21.Nf3+/– Ne5 22.Be5 Be5 23.Qa4 (23.Re5?! Re5 24.Ne5 Qe5=) 23...Re7 (23...Qf6 24.Qa7 Bb2 25.Qb7+/–) 24.d4 Bf6 25.Re7 Be7 26.Bd3 Qf4 (26...Qg4 27.h3 Qf4 28.Qd7+–) 27.Bh7 (27.Qd7!? Qc7 28.Bh7 Kh7 29.Qd5 Bf6+–) 27...Kh7+/– 28.Qd7 Rc7 29.Qd5 Qe3 30.Kh1 Qa3 31.Qe4 Kg8 32.d5 Qa4 33.Re1 Bf6 34.Qe8 Qe8 35.Re8 Kh7 36.d6 Rd7 (36...Rc6 37.d7+–) 37.Ne5 Be5 38.Re5 Kg6 (38...Rd8 39.Re7 b6 40.d7 bc5 41.bc5+–) 39.Re7 (39.Re7 Rd8 40.Rb7+–) 1–0. Schnitzspan,Lothar (2320) – Brauer,Christian (2135), Dresden op, 1999. (=1.Nf3 d5 2.c4 c6 3.e3 Nf6 4.b4 Bf5 5.Bb2 e6 6.a3 Nbd7 7.Be2)

8.0-0 Be7 9.d3 0-0 10.Nc3 a5 11.Qb3 ab4 12.ab4 Qb6 13.Ba3 dc4 14.Qc4 Nd5 The pressure on the isolated pawn grows (14...e5 15.d4 e4 16.Ne5+=) 15.e4 Nc3 16.Qc3 Bg4 17.d4 (17.Rfd1 Ra4+=) 17...Nf6+= 18.Qe3 Ra4 (worse is 18...Bb4 19.Rab1 Ra3 20.Qa3 Ba3 21.Rb6 Ne4 22.Ra1+=) 19.h3 (19.Bd1 Ra7+=) 19...Bh5 20.Bd1 Ra7 21.g4 (21.Nd2!?+=) 21...Bg6–/+ 22.Bc2 Rfa8 (worse is 22...Bb4 23.Rfb1 Ra3 24.Qa3+/–) 23.Rfb1 (23.Bb2 Ra1 24.Ra1 Ra1 25.Ba1 Qa7–/+) 23...Qd8 (better is 23...Be4!? 24.Be4 Ne4 25.Qe4 Ra3 26.Ra3 Ra3–+) 24.Rb3+= Nd7 25.Rc1 Nb6 26.Bb1 Ra4 27.Rcc3 Ra3! 28.Ra3 Ra3 (worse is 28...Bb4 29.Ra8 Qa8 30.Rb3+=) 29.Ra3 Nc4 30.Qb3 Na3 31.Qa3 Qb6 32.Ne5 Bb4 (32...Qd4 33.Ng6 fg6 34.Qb3–/+) 33.Qa8 Kh7 34.Ng6 fg6 (better is 34...Qd4!? 35.Ne7 Be7 36.e5 g6+=) 35.Ba2= Qa6 (35...c5 36.Qe8 Qc6 37.Qc6 bc6 38.dc5=) 36.Qa6+= ba6 37.Be6 Bc3 38.d5 cd5 39.ed5 Be5 40.Kf1 g5 41.Bf7 g6 42.Ke2 Kg7 43.Be8 Kf6 44.Kd3 Bd6 45.Kd4 Be7 46.Bd7 h5 47.Bc8 (47.Kc4 Ke5+=) 47...hg4 (47...a5!?=) 48.Bg4 Bd6 49.Bc8 a5 50.Bd7 Ke7 51.Ba4 Bh2 52.Kc4 Kd6 53.Bc2 Bf4 54.Bg6 (54.Bb3 Bd2+=) 54...a4= 55.Bb1 a3 56.Kd4 (56.Kb3 Bc1 57.Be4 Ke5=) 56...Bc1 (56...Bd2 57.Kc4+=) 57.Ba2= Bd2 58.Ke4 Bc1 59.Kf5 Bd2 60.Kf6 Bc1 61.Kf5 Bd2 62.f4 gf4 63.Ke4 Bc1 64.h4 Bd2 65.h5 f3 66.Kf3 Ke5 67.Ke2 (67.Bb3 Bb4+=) 67...Bh6 (67...Bf4!?=) 68.Kd3+= Bf8 69.Kc4 (69.Kc3!?+/–) 69...Kf5= 70.Kb5 Kg5 71.Kc6 Kh5 72.d6 Bd6 73.Kd6 ½–½. Meijers,Viesturs (2505) – Schulte,Torsten (2145), Boeblingen op, 2005.

8.0-0 Be7 9.d3 0-0 10.Nbd2 Bh7 (10...a5 11.Qb3=) 11.Qb3+= a5 12.Rfc1 Qb8 13.Bf6 (13.Bc3 ab4 14.ab4 Qc7+=) 13...Bf6 (13...Nf6 14.c5=) 14.d4+= ab4 15.Qb4 (15.ab4 dc4 16.Nc4 Qc7+=) 15...Re8 16.cd5 ed5 17.a4 Be7 18.Qb3 (18.Qc3 Qd6=) 18...Ra5 19.Ra2 Qa7 20.Rb2 Rb8 21.Bd1 Bd6 22.h3 Qa6 23.Ne1 (23.Ra1 Bg6+=) 23...Bg6 (23...b5 24.Qa2–/+) 24.Ndf3 (24.Ra1 c5–/+) 24...c5 (24...b5 25.Qc3 ba4 26.Be2–/+) 25.Qd5+= Exerts pressure on the backward pawn 25...cd4 26.Qb3 (26.Qd4 Ba3–/+) 26...Nc5 27.Rc5 Rc5 28.ed4 Rc1 29.Ne5?? (better is 29.Be2 Qa8 30.Bf1–/+) 29...Be5–+ 30.de5 Rd8 (30...Rd8 31.Bf3 Qa5–+) 0–1. Sobeck,Guenter (2170) – Dexter,Daniel (2210), Oberliga Ost–A, 2005.

8.0-0 Be7 9.cd5 ed5 10.Nd4 Bg6 11.f4 0-0 12.Nc3 Bd6 13.Qb3 Re8 14.Rf2 Qe7 15.Rc1 Rac8 16.Rf3 Bh5 (16...c5 17.bc5 Nc5 18.Qa2=) 17.Rg3 Bg6 18.Rf1 (18.Rh3 a5=) 18...Nf8 (18...a5 19.ba5 Nc5 20.Qd1+=) 19.Nf3 (19.Rgf3 a6=) 19...Bh7 20.Ne5 N6d7?? (better is 20...Bf5=) 21.Nd5! cd5 22.Rg7!! Kg7 23.Nd7 Kg8 (23...d4 24.Bd4 f6 25.Bf6 Qf6 26.Nf6 Kf6 27.Qb2 Kf7+–) 24.Nf6 Qf6 25.Bf6 Re6 (25...Be7 26.Bd4 (26.Qd5?! Bf6 27.Qb7 Rc2+–) 26...Red8 27.f5+–) 26.Bg4 Rce8 (26...Nd7 27.Ba1 Rc4 28.Be6 fe6 29.e4 Re4 30.Qg3 Kf7 31.Qg7 Ke8 32.Qh7 Bf4 33.g3+–) 27.Be6 fe6 28.Qa4 Kf7 (28...Rb8 29.Qa7 Nd7 30.Be5 Be5 31.fe5+–) 29.Be5 Be7 30.Qa7 Bd3 31.Rc1 Ng6 (31...Ba6 32.Rc7+–) 32.Qb7 Be4 (32...Nh4 33.Rc7+–) 33.Bd6 1–0. Fournier,Frederic (1990) – Saphire_blue59, Active, 2007.

6.a3 Be7

7.Qb3 0-0=+ 8.Nc3 Nbd7 9.d4 Ne4 10.Be2 Ndf6 (10...Nc3 11.Qc3 Nb6 12.cd5 Nd5 13.Qc4=+) 11.0-0= Bg4 12.Rfd1 Nc3 13.Bc3 dc4 14.Qc4 Nd5 15.Bb2 Bf5 16.Ne5 f6 17.Nd3 Nb6 18.Qb3 Qd6 (18...Qd5!? 19.Qd5 cd5=) 19.Nc5+= Rab8 (better is 19...Qd5!? 20.Qd5 cd5+=) 20.e4+– Bg6 21.Ne6 Bf7 22.d5 Rfc8 23.Bf3 (23.Rac1 cd5 24.Nc5 de4+=) 23...cd5+/– 24.ed5 Nc4 25.Bc3 b5 26.Re1 Nb6 (26...Bd8!?+/–) 27.Bd4+– Rc4 28.Bc5 Qd7 29.Be7 Qe7 30.Ng7! Qd7 31.Ne6 Nd5?? 32.Bd5 Qd5 33.Qg3 Kh8 34.Qg7# 1–0. Cossmann,R – Frenzel,Lothar, corr SOK–91–71, 1991.

7.Qb3 a5 8.b5 Nbd7 9.d4 a4 10.Qd1 Ne4 11.Nbd2 cb5 12.cd5= ed5 13.Bb5 Qb6 14.Qe2 Nd6 15.Bd7 Bd7 16.Bc3 Bb5 (17.Qd1 Ne4 18.Ne4 de4=+). De Visser,Arno – Luehrig,Walter, Orang–Utan Invitational, 2002.

7.Qb3 a5 8.b5 (8.ba5 Nbd7=) 8...Nbd7 (8...a4 9.Qc3=+) 9.d4 (9.Nd4 Nc5 10.Qc3 Na4=+) 9...a4 10.Qd1 Ne4 (10...cb5 11.cb5 Qa5 12.Qd2 Qd2 13.Nbd2=+) 11.Nbd2 (11.Nc3 Qa5 12.bc6 bc6=+ (12...Nc3?! 13.cd7 Kd7 14.Qd2+=)) 11...cb5 (11...Qa5 12.Rc1=+) 12.cd5= ed5 13.Bb5 Qb6 14.Qe2 Nd6 15.Bd7 Bd7 16.Bc3 Bb5 (17.Qd1 Ne4 18.Ne4 de4=+). De Visser,Arno – Luehrig,Walter, Orang–Utan Invitational, 2002.

7.Qb3 Bg6 8.Nc3 0-0 9.Be2 Nbd7 10.d3 (better 10.cd5 ed5 11.Nh4=) 10...Ne4?? (better 10...a5 11.0-0 ab4 12.ab4 Qb6=+) 11.de4+- de4 12.Nd2 f5 13.0-0-0 (13.c5 Bf7+-) 13...Bf6 (13...Bf7 14.c5 a5 15.Nc4 ab4 16.ab4+-) 14.Kb1 (14.c5 Qe7 15.Nc4 a5+-) 14...Qe7 15.c5 a5 16.Nc4 ab4 17.ab4 Ra7 (17...Bh4 18.g3 Bf6 19.h4+-) 18.Na4 (18.Rd6 Re8+-) 18...Rfa8?! (18...Bb2 19.Kb2 Nf6+-) 19.Nab6 Nb6 20.Nb6 (20.cb6?! Ra6+-) 20...Re8 (20...Ra2 21.Qa2 Ra2 22.Ka2 Bb2 23.Kb2+-) 21.Rd6 (21.Rd7!? Qf8+-) 21...Bb2 22.Qb2 f4 (22...e5 23.Bc4 Bf7 24.Rd7 Qd7 25.Nd7 Bc4 26.Nb6+-) 23.Rhd1 (23.Re6! Qc7 24.Bc4 Kh8+-) 23...fe3 (23...Qg5 24.Bc4 Bf7 25.Rd7+-) 24.fe3 Qg5 25.Qc3 (better 25.Bc4!? Bf5 26.Rf1 Kh8+-) 25...Qg2 26.Bc4 Kh8 (26...h6 27.Qe5 Bf7 28.h4+-) 27.Re6 Rf8 28.Re7 (28.Red6!? Qg5+-) 28...h6 (28...Bh5 29.Re1 Qg5+-) 29.Qg7 1-0. allyouneedisluft (2420) - No_signs_of_V (2345), Rated Bullet game, lichess.org, 2016.

7.b5 0-0=+ 8.bc6 Nc6 9.cd5 ed5 10.d4 Ne4 11.Nbd2 Qa5 12.Be2 Rac8 13.0-0 Nd8 14.Ne4 Be4 15.Nd2 (15.Qb3 Rc2 16.Rfe1 Qb6 17.Qb6 ab6=) 15...Bg6 (15...Bc2 16.Qe1=+) 16.Rc1 Ne6 17.Nb3 Qa4 18.Ra1?? (better is 18.Nc5 Qc6 19.Nd3=) 18...Bc2–+ 19.Qd2 Bb3 (19...Qb3 20.Bc1–+) 20.Bg4 (20.Bd3–+) 20…Rc2 (21.Qd3 Rb2–+) 0–1. Conveyor – shirehorse, ChessWorld.net, 2005.

7.Nc3 h6 8.Be2 Nbd7 9.cd5 cd5 10.0-0 0-0 11.Qb3 Nb6 12.d3 Bg6 (12...a6 13.Rac1=) 13.Ne5 Bh7 14.Rfc1 a6 15.Na4 Na4 16.Qa4 Bd6 17.f4 Qe7 18.Rc2 Rfc8 19.Rac1 Qe8 (19...Rc2 20.Qc2 Rd8 21.Qc3+=) 20.Qe8+/– Re8 21.Bd4 Re7 22.Bb6 Rae8 23.Rc3 Nd7 (better is 23...h5!?+/–) 24.Nd7+– Rd7 25.Bd1 Rde7 26.Ba4 Rf8 27.Rc8 g5 (27...f6 28.Rf8 Kf8 29.Rc8 Kf7 30.Bd8+–) 28.fg5 hg5 29.Rd8 Rd8 30.Bd8 Bd3 31.Be7 Be7 32.Rc7 Bf6 33.Rb7 Bb2 (33...Be5 34.Be8 Bg6 35.a4+–) 34.Be8 f5 (34...Bg6 35.a4 d4 36.ed4 Bd4 37.Kf1+–) 35.Bf7 (35.Bf7 Kg7 36.Be6 Kf6 37.Bd5+–) 1–0. marekt – realcomedian, gameknot.com, 2015.

7.c5 0-0 8.d4 b6 9.Bd3= Be4 (9...Bd3 10.Qd3 a5 11.Nc3+=) 10.Be4 (10.Nc3 a5=) 10...Ne4 11.Nbd2 Nd2 (11...Nf6 12.0-0=) 12.Qd2 Nd7 13.0-0 bc5 (13...a5 14.Rfc1=) 14.dc5 a5 15.Ne5 Ne5 16.Be5 f6 17.Bb2 (17.Bc3 e5=) 17...e5 18.Rfe1 (18.Qd3 Qd7=) 18...ab4 (18...Qc7 19.e4 d4 20.Qd3=) 19.ab4 (worse is 19.Qb4 Qc7–/+) 19...Rb8 (19...Qc7 20.Ra8 Ra8 21.e4=) 20.Bc3 Qc7 21.g3 (21.e4 Rfd8=) 21...Rfd8 (21...e4 22.f3 f5 23.Rf1=) 22.Qe2 e4 (22...Qd7 23.e4=) 23.Ra6 (23.f3 ef3 24.Qf3 Qd7=) 23...Ra8 24.Rea1 Ra6 25.Qa6 Rb8 26.Qa7 Qb7?? (better is 26...Rb7 27.Qa8 Bf8=) 27.Qb7+/– Rb7 28.Ra8 Kf7 29.Rc8 Ke6 (29...Ra7 30.Rc6 Ke8 31.Kg2+–) 30.Rc6+– Kd7 31.Ra6 Kc7 (31...Rb5 32.f4+–) 32.Kg2 Kb8 (32...h6 33.f3+–) 33.Ra5 (33.f3 ef3 34.Kf3 Kc7+–) 33...Rc7 (33...Bd8 34.Ra1+–) 34.Bd4 Kb7 35.Rb5 (35.f3 h6+–) 35...Kc6 (35...Kc8 36.h3+–) 36.Rb6 (36.Rb8 Rb7 37.Rb7 Kb7+–) 36...Kd7 37.f3 ef3 (37...h5 38.Ra6+–) 38.Kf3 Rc6 (38...Kc8 39.e4 de4 40.Ke4+–) 39.Rb7 Ke6 40.b5 Rc8 41.c6 Bd6 (41...h5 42.Rd7 Rd8 43.Rd8 Bd8 44.Bc5+–) 42.e4 (better is 42.Rg7 Rc7 43.Rc7 Bc7+–) 42...de4 (42...Bc7 43.b6 de4 44.Ke4+–) 43.Ke4 Rc7 (43...Rg8 44.Kd3+–) 44.Rc7 Bc7 45.b6 (45.b6 Bd6 46.Kd3+–) 1–0. Fournier,Frederic (1820) – philidor24 (1815), Active, 2004.

7.d4 a6 8.Nc3 (8.c5 a5=) 8...b5 (8...0-0 9.Nh4 Bg4 10.Qc2+=) 9.c5 (9.cd5 cd5 10.Be2 Ne4=) 9...Nbd7 (9...a5 10.Be2=) 10.Bd3 (10.a4 0-0=) 10...Ne4 (10...Bd3 11.Qd3 a5 12.0-0=) 11.0-0+= Nc3 (11...a5 12.Qc2 Nc3 13.Bf5+=) 12.Bc3 Bd3 13.Qd3 f5 (13...0-0 14.Bd2+=) 14.a4 0-0 15.ab5 (15.Ra2 Qc7+=) 15...ab5 16.Ra8 (16.Ra5 Ra5 17.ba5 Qa8+=) 16...Qa8= 17.Ra1 Qb7 18.h4 (18.Ra3 Ra8 19.Bb2 Ra4=) 18...Ra8 19.Ng5 (19.Ra5 Bd8 20.Ra8 Qa8=) 19...Bg5 (19...Ra1 20.Ba1 Bg5 21.hg5=) 20.hg5 Ra1 21.Ba1 Qa6 22.Bc3 Qa3 (22...Nf8 23.Qc2=) 23.f3 (23.Qc2 Nb8=) 23...Kf7 (23...Qc1 24.Kh2+=) 24.g4 (24.Qd2 Kg6+=) 24...g6 (24...fg4 25.fg4 Nf8 26.Kf2–/+) 25.Qc2 (25.gf5 ef5 26.Qd2 Nf8=) 25...Qa4 (25...fg4 26.fg4 Ke8 27.Kg2+=) 26.Qb1 (26.Qh2 Qd1 27.Kg2 Qc2 28.Kg3 f4 29.ef4 Qc3 30.Qh7 Ke8 31.Qg6 Ke7=) 26...Qa3 (26...fg4 27.fg4 Ke8 28.e4+=) 27.Bd2 (27.Qc2 fg4 28.fg4 Qa4+=) 27...fg4+= 28.fg4 (28.f4 Kg7+=) 28...Ke7 (better is 28...Kg8–/+) 29.e4? (better is 29.Kf2+=) 29...Qg3–+ 30.Kf1 Qf3 31.Ke1?? (better is 31.Kg1 e5 32.Qe1 de4 33.Qe3–+) 31...Qh1 (31...Qh1 32.Ke2 Qb1 33.ed5 Qe4 34.Kd1 ed5–+) 0–1. Rush,Bradley – Slavin,Pablo, SF–2011–0-00122, 2011.

7.d4 Ne4 8.Nbd2 Nd7 9.Ne5 (9.Ne4 de4 10.Nd2 a5=) 9...Ne5 (9...0-0 10.Nd7 Qd7 11.Be2+=) 10.de5 dc4 (10...Nd2 11.Qd2 0-0 12.cd5 ed5 13.Be2=) 11.Bc4= Nd2 (11...b5 12.Be2 Nd2 13.Qd2 Qd2 14.Kd2=) 12.Qd2 Qd2 13.Kd2 0-0-0 (13...0-0-0 14.Ke2 a6=). Kolosan – Chubukin, corr, 1967.

7.cd5 Qd5 8.Be2 a5 =.

7.Nc3 0-0

8.Rc1 dc4 9.Bc4 b5 10.Be2=+.

8.Rc1 Nbd7 9.Be2 a5 10.b5 h6 (10...dc4 11.Bc4 cb5 12.Bb5=) 11.0-0 (11.bc6 bc6 12.Nd4 Rc8+=) 11...Bh7 12.d3 Re8 13.Re1 Bd6 (13...dc4 14.dc4 Qc7 15.Bd3=) 14.Bf1 (14.d4 dc4 15.Bc4 c5=) 14...Bf8 (14...dc4 15.dc4 Qc7 16.Qd4=) 15.e4 de4 16.de4 e5 17.Nh4 (17.Qc2 Qc7=) 17...Nc5 Will e4 fall? 18.Nf5 (18.Qf3 Qd2 19.Rb1 cb5 20.cb5 Qg5=+) 18...Bf5 (18...Nfe4!? 19.Ne4 Ne4-/+) 19.ef5= Qc7 20.Qf3 Rad8 21.Qg3 Kh8 22.Re3 Bd6 23.Rce1 (23.Rd1 e4 24.Qh3 Be5 25.Rd8 Rd8=+) 23...Qc8 (23...e4!? 24.Qh4 Bf4=+) 24.Qh3= a4 25.Bc1 (better 25.Bd3!?=) 25...e4-/+ 26.g4? (26.Bb2 Be5 27.Rd1 Rd1 28.Nd1 Qd7-/+) 26...Kg8 (26...Bf4 27.Re4 Nce4 28.Bf4 Nc3 29.Re8 Re8 30.Qc3 Ng4 31.Qd3-+) 27.Bg2? (better 27.Rd1-/+) 27...Bf4-+ 28.R3e2 Bc1 (28...Rd3 29.Re3 Be3 30.Re3-+) 29.Rc1 Nd3 30.Rf1 Nf4 31.Qe3 Ne2 32.Qe2 Qc7 33.Re1 Rd3?? (better 33...Qf4 34.h3 Rd3 35.Na4 cb5-+) 34.Ne4=+ Red8 35.Nf6 gf6 36.bc6 bc6 37.Qe4 Qe5 38.Qe5 fe5 39.Re5 (39.Bc6 R8d4 40.c5 Rg4 41.Kf1 Ra3 42.Re5 Kg7-+) 39...Rd1-+ 40.Bf1 R8d3 41.Kg2 Ra3 42.Ra5 Ra2 43.c5 Rd4 44.h3 a3 45.Ba6 Rdd2 46.Bb7 (46.Bc4 Rac2 47.Bb3 Rc3 48.Ra3 Kg7-/+ (worse 48...Rc5 49.Ra7+=)) 46...Rf2 (46...Rab2!? 47.Bc6 a2-/+) 47.Kg3-/+ Rg2 48.Kh4 Kg7 (48...Rge2 49.Kh5 Re3 50.h4-/+) 49.Bc6=+ Rgd2 50.Bb7 (better 50.Ra6!? Rd4 51.Bf3=+) 50...Rd3-/+ 51.c6?? (better 51.Ra6 Rf2 52.Bc6-+) 51...Rc2 (better 51...Rh2 52.g5 Rg2 53.f6 Kg6 54.Bc8 hg5 55.Rg5 Rg5 56.Bd7 a2 57.c7 a1Q 58.Bf5 Rf5 59.c8Q Qd4) 52.Ra4 (52.c7 Rc7 53.Ba6 Re3-+) 52...a2 (better 52...Rcc3 53.g5 a2-+) 53.g5 (53.Ba6 Rf3 54.c7-+) 53...hg5 (53...a1Q 54.Kh5 Rh3 55.Kg4 Qg1 56.Kf4 Qe3 57.Kg4 h5) 54.Kg5 f6 (54...Rh3?! 55.f6 Kh7 56.c7 Rc5 57.Kg4=+) 55.Kf4 (55.Kh5 Rg2 56.Ba6 Rh3 57.Rh4 Rg5) 55...Rd4!! 56.Rd4 a1Q 57.Rd7 Kh6 58.Ke4 Qe5 (58...Qe1 59.Kd4 Qe5 60.Kd3 Rc3 61.Kd2 Qe3 62.Kd1 Rc1) 59.Kd3 (59.Kf3 Qe2 60.Kf4 Rc4 61.Kg3 Rc3 62.Rd3 Rd3 63.Kf4 Qf3) 59...Rc3 60.Kd2 Qe3 (60...Qe3 61.Kd1 Rc1) 0-1. black_bishop_88 (2630) - Oleksiy_Khrinovskyi (2525), lichess.org, 2020. (=1.a3 d5 2.b4 Nf6 3.Bb2 Bf5 4.Nf3 e6 5.c4 c6 6.e3 Be7)

8.c5 a5 9.Be2=+.

8.c5 h6 9.h3 (9.Be2 b6 10.Na4 Nfd7=) 9...b6 10.Be2 (10.d4!?=) 10...bc5–/+ 11.bc5 Bc5 12.Rc1 Bb6 13.Na4 Nbd7 (13...Nfd7!?=+) 14.Rc6= Rc8 15.Rc8 Qc8 16.Bb5 (16.Nb6 ab6 17.0-0 Be4=) 16...a6 (16...Bc7 17.Qe2=) 17.Bd7 Nd7 18.Nb6 Nb6 19.d3 Qd7 20.0-0 (20.g4 Bg6=) 20...Qb5=+ 21.Bd4 (21.Qa1!? f6 22.Nd4 Qd3 23.g4=) 21...Bd3–/+ 22.Bb6?? (better 22.Re1 Bh7 23.Qa1–/+) 22...Bf1–+ 23.Qf1 Qb6 24.Nd4 (24.Qc1 Rb8 25.Nd2 Qb2–+) 24...Rc8 25.Kh2 (25.Qa1 Qc7–+) 25...Qd6 26.g3 Qa3 27.Qc1 (27.Kg2–+) 27…Qc1 (27...Qc1 28.Nc6 Rc6 29.h4 Qf1 30.g4 Qf2 31.Kh3 Rc2 32.g5 Qf3) 0–1. e4_e5_f4 (1655) – Thendays (1640), lichess.org, 2020.

8.d4 a5 9.b5= cb5 10.Nb5 a4 (10...Nc6 11.Rc1=) 11.Be2 (11.Rc1 Ne4=) 11...dc4=+ 12.Bc4 Qb6 13.Rc1 (13.Qe2 Rc8 14.Bc3 Qc6=+) 13...Ra5–/+ 14.Qe2 Rc8 15.0-0 (15.Nd2 Ne4–/+) 15...Rc4! 16.Qc4 (16.Rc4 Rb5) 16...Rb5 (16...Qb5?! 17.Qc8 Bf8 18.Rc5 Qb2 19.Ra5=) 17.Bc3 (17.Qc8 Bf8 18.Qb8 Rb2–/+) 17...Nc6 18.Qa4 Nd5 19.Nd2 (19.Rfe1 Nc3 20.Rc3 Rb1–/+) 19...Nc3 (19...Bd3 20.Rfe1–/+) 20.Rc3 Ra5 21.Qb3 Qa6 22.Ra1 Ra4 23.Rc4 Ra3 24.Ra3 Qa3 25.Qa3 Ba3 26.e4 Bg6 27.d5 ed5 28.ed5 (The passed pawn on d5 will quickly become a dangerous weapon) 28...Nd8 29.Rc8 Be7 30.Nc4 Kf8 31.d6 Bf6 32.Ne5 Bf5 33.Rc5 Ke8 34.f4 Ne6 35.Rb5 Nf4 36.Rb7 Be5 37.Re7 Kd8 38.Re5 Be6 39.Ra5 Kd7 40.Ra4 Nd5 41.Ra6 Nc3 42.Kf2 Nb5 43.Ke3 f6 44.Rb6 Nd6 45.Rb8 Kc6 46.Ra8 Kc5 47.Ra5 Kb6 48.Ra1 Bd5 49.g3 Bc6 50.Rc1 h5 51.Kd4 Nf5 52.Kd3 h4 53.g4 Ne7 54.Ke3 g5 55.Rf1 Kc5 56.Rf2 Nd5 57.Ke4 Kd6 58.Rd2 Ke7 59.Rd4 Nf4 60.Ke3 Bg2 61.Ra4 Bh3 62.Kf3 Nd3 63.Ra7 Ke6 64.Ra6 Kf7 65.Ra7 Kg6 66.Ke2 Ne5 (67.Ra6 Bg4 68.Kf2 Bf3–+) 0–1. Pommerel,Wim H (2390) – Limayo,Edgardo V (2365), corr EM/MN/013 ICCF Email, 1999.

8.d4 a5 9.b5 c5 10.cd5+= ed5 (10...Nd5 11.Nd5 Qd5 12.dc5 Bc5 13.Qd5 ed5 14.Rd1=) 11.dc5 Bc5 12.Bd3 Bg4 (12...Be6 13.0-0+=) 13.h3 Bh5 (13...Bf3 14.Qf3 Qd6 15.Rd1 Ba3 16.Ba3 Qa3 17.Nd5+=) 14.g4+– Bg6 15.Bg6 fg6 (15...hg6 16.Rc1+–) 16.Rc1 Qd6 (16...b6 17.Qb3+–) 17.g5+– Be3 (17...Nh5 18.Qd5 Qd5 19.Nd5+–) 18.fe3 (18.gf6 Bc1 19.Bc1 Qf6 20.Nd5 Qf3 21.Qf3 Rf3=+) 18...Qg3 19.Kd2 Ne4 20.Ne4 de4 21.Qb3 (21.Nd4 Nd7 22.Qb3 Kh8+–) 21...Kh8 22.Nd4 (22.Ng1 Nd7 23.Ne2 Qg5+–) 22...Nd7 (22...Rf2 23.Ne2 Nc6 24.bc6 Rd8 25.Kc2 Re2 26.Kb1 bc6 27.Bg7 Kg7 28.Qc3 Kg8 29.Qc4 Kg7 30.Qe2 Qg5 31.Rc6 Kh6+–) 23.Kc2+– Qg5?? (better 23...Nc5 24.Qc3 Qg2 25.Kb1 Na4+–) 24.Ne6 Qg2 (24...a4 25.Qc3 (25.Bg7?! Kg8 26.Ng5 ab3 27.Kb3 Rf5+–) 25...Rf2 26.Kb1+–) 25.Kb1 Rf7 (25...Nf6+–) 26.Rhd1 Nf6 (26...a4 27.Qd5 h5+–) 27.Rd8 Rd8 (27...Rf8 28.Rf8 Rf8 29.Nf8 Qf3 30.Qf7 Nh5 31.Rc8 Qf1 32.Qf1 h6 33.Qf7 Nf6 34.Ng6 Kh7 35.Rh8) 28.Nd8 (28.Nd8 h6 29.Qf7 Qd2 30.Ne6 Qb2 31.Kb2 Ne8 32.Qe8 Kh7 33.Qd7 b6 34.Qg7) 1–0. Pierre – Depillar, internet, 2019.

8.d4 a5 9.b5 Nbd7!?=+.

8.d4 Ne4 9.Nd2 Nc3 10.Bc3 Nd7 11.c5 Nf6 12.Be2 Ne4 13.Ne4 Be4 14.0-0 b5 (14...Bh4 15.Be1=) 15.a4+= a6 16.Qd2 Bf6 17.Ra2 Qe7 18.Rfa1 Rac8 19.ab5 ab5 20.Ra6 h6 21.Qb2 Rc7 22.R1a3 Bg6 23.R3a5 Re8 24.Ra1 Qd7 25.R1a3 Qe7 26.Bd1 Qd7 27.Ra2 Bd3 28.Bh5 Bg6 (28...Bc4 29.R2a3+=) 29.Bg6+/- fg6 30.Qb1 Kh7 31.f4 Qf7 32.Be1 Kg8 33.g4 (33.Bg3 Kh7+/-) 33...g5+= 34.Qd3 gf4 35.ef4 Rec8 36.h3 Rd7 37.Kg2 Bd8 38.Ra8 Ra8 39.Ra8 Qe7 (39...Qf6!?+/-) 40.Qg6+- Qf7 (40...Kf8 41.Bg3+-) 41.f5 ef5 42.gf5 (42.Qc6 fg4 43.hg4 Qe8=; 42.Qf5?! Qe7+=) 42...Qf6? (42...Qe7 43.Qe6 Kh7+-) 43.Qe8 Kh7 44.Qd7 Qg5 45.Kh1 Qe3 (45...Qf4 46.Kg1 Bc7+-) 46.Qe6 (46.Qd8?! Qe1 47.Kg2 Qe2 48.Kg3 Qe3 49.Kg4 Qe2 50.Kh4 Qe1 51.Kh5 Qd1 52.Kh4 Qe1 53.Kh5 Qd1 54.Kh4 Qe1=) 46...Qh3 47.Kg1 Qg4 48.Kf1 Qf3 49.Kg1 (better 49.Bf2!? Qh3 50.Ke2 Qg4 51.Ke1 Qg5+-) 49...Qg4 50.Kf1 Qf3 51.Bf2 Qd1 52.Kg2 Qg4 53.Bg3 Qg5 54.Qg6! Qg6 55.fg6 Kg6 56.Rd8 Kf5 57.Rc8 Ke4 58.Rc6 Kd4 59.Rd6 Kc4 60.c6 d4 61.c7 Kb4 62.c8Q Kb3 63.Rd4 g5 64.Be1 g4 (64...b4 65.Rb4 Ka3 66.Qa6) 65.Rb4 Ka2 (65...Ka3 66.Qa6) 66.Qa6 1-0. PEREIRA – Tremaett, internet, 2022.

8.d4 Ne4 9.Be2 a5=.

8.d4 Ne4 9.Ne4 Be4 (9...de4 10.Nd2=) 10.Nd2 (10.c5 a5=) 10...Bg6 (10...Bf5 11.Be2+=) 11.Be2= Nd7 12.c5 (12.0-0 h6=) 12...Qc7 13.0-0 b6 14.cb6 (14.Nf3 bc5 15.bc5 Bf6+=) 14...ab6 15.Rc1 Qb7 (15...c5 16.Bb5+=) 16.Qb3 Rfc8 17.Bf3 Nf6 18.g3 Qa7 (18...h6 19.Rfe1+=) 19.Qc3 (19.Rfe1 Qd7+=) 19...Qa6 20.Rfe1 (20.Qb3 c5+=) 20...c5–/+ 21.bc5 bc5 22.e4 (22.dc5 Rc5 23.Qd4 Rac8–/+) 22...de4 23.Ne4 Be4 24.Be4 Ne4 25.Re4 cd4 26.Qd4 Rc1 27.Bc1 Rd8 28.Qc3 Rd1–/+ 29.Re1 Re1 30.Qe1 Ba3 31.Qe5 Bf8 32.Bb2 Qd6 33.Qc3 Qd1 34.Kg2 Qd5 35.Kg1 Qc5 36.Qf3 Qd5 37.Qc3 Qd6 38.h3 Qc5 39.Qf3 Qd5 40.Qc3 Qf5 41.h4 Qd5 42.Ba3 Ba3 43.Qa3 h6 44.Qe7 Qf5 45.Kg2 g5 46.hg5 Qg5 47.Qb4 h5 48.Kh2 Qe5 49.Qd2 Kg7 50.Kg1 Qf5 51.Qd4 e5 52.Qe3 Kg6 53.Qb6 Qf6 54.Qe3 Qg5 55.Qe4 Qf5 56.Qe3 h4–/+ 57.gh4 Kh5 58.Kf1 Kh4 59.Qg3 Kh5 60.Qg7 f6 61.Ke1 Qg6 62.Qh8 Kg5 63.Kf1 Qb1 64.Kg2 Qg6 65.Kf1 Qb1 66.Kg2+= Qe4 67.Kf1 Qg6 68.Qc8 f5 69.Qd8 Kg4 70.Qd3 Kg5 71.Qd8 Kg4 72.Qd3 Kh4 73.Qd8= ½–½. Steffens,Olaf (2305) – Krug,Stefan (2095), Pyramiden Franken Cup 1st, 1998.

8.Nd4 =.

8.cd5 Nd5 9.Nd5 Qd5 10.d3 =+.

8.cd5 Nd5 9.Qe2 Bg4 =.

8.Be2 Ne4 9.Ne4 (9.d3 Nc3 10.Bc3 Bf6 11.Bf6 Qf6=) 9...de4 10.Nd4 Bg6 11.Nb3 (11.0-0 e5 12.Nb3 Qd6=) 11...Bf6 (11...Qc7 12.0-0=) 12.Qc2 (12.Bf6 Qf6 (worse is 12...gf6 13.0-0+/–) 13.0-0 Rd8=) 12...Nd7 (12...Bb2 13.Qb2 Qg5 14.0-0=) 13.Na5 (13.Bf6 Qf6 14.0-0 Rfd8=) 13...Qc7 (13...Bb2 14.Qb2 Qc7 15.0-0+=) 14.Bc3 (14.Bf6 Nf6 15.c5 Rfd8=) 14...b6 (14...Ne5 15.0-0+=) 15.Nb3 (15.Bf6 Nf6 16.Nb3 Rad8=) 15...Ne5 16.Nc1 (16.0-0 Rfd8+=) 16...Rfd8 17.Qb2 (17.0-0 Qd6–/+) 17...c5 18.b5 (18.0-0 Bf5–/+) 18...h5 (18...a6 19.ba6 Ra6 20.0-0–/+) 19.a4 (19.0-0 h4+=) 19...a5 20.ba6 (20.0-0 h4+=) 20...Ra6 21.Qb5 (21.0-0 Ra7+=) 21...Rda8 (21...Nd3 22.Nd3 Bc3 23.Qa6 (worse is 23.dc3 Ra5 24.Nf4 Rb5 25.ab5 Qe5–/+) 23...Ba1 24.Nf4=) 22.Rb1 (22.0-0!?+=) 22...Ra4–/+ 23.Qb6 (23.0-0 R4a6–/+) 23...Qb6 24.Rb6 Nc4 (24...Nd3 25.Bd3 ed3 26.Bf6 gf6 27.Rb1–+) 25.Rb3 (25.Rc6 Bc3 26.dc3 Ra3 27.Rc5 Ra1–+) 25...Na5 (better is 25...Be5–/+) 26.Bf6?? (better is 26.Rb5 Bc3 27.dc3–/+) 26...Nb3–+ (26...gf6?! 27.Rc3 c4 28.f3–/+) 27.Nb3 gf6 28.Nc5 (28.0-0–+) 28...Ra1 29.Bd1 Rd1! (29...Rd1 30.Kd1 Ra1 31.Ke2 Rh1–+) 0–1. Buck,K1 (1810) – Mastroddi,E (2095), Arco ITA, 2011.

8.Be2 h6 9.0-0 Nbd7 (9...dc4 10.Bc4 Nbd7 11.d4=) 10.d4 (10.cd5 cd5 11.Qb3 Rc8=) 10...Re8 11.c5 Qc7 12.Rc1 Bg4 (12...b6 13.cb6 ab6 14.h3+=) 13.Nd2 (13.Qc2 a5=) 13...Be2+= 14.Ne2 b5 (14...a5 15.f3+=) 15.h3 (15.Nb3 Nh5=) 15...e5 (15...a5 16.Qc2=) 16.de5= Ne5 17.Bd4 (17.Be5 Qe5 18.a4 a6=) 17...a5 (17...Nc4 18.Ra1+=) 18.Ra1 (18.Be5 Qe5 19.Nd4 Rec8=) 18...ab4 (18...Nc4 19.Qc2+=) 19.ab4= Nc4 20.Qc2 Qb7 21.Ng3 Nd7 22.Nf3 Bf6 23.Qc3 Bd4 24.Qd4 g6 (24...Nf6 25.Nf5 Kh7 26.Ra8 Ra8 27.Qh4+=) 25.e4 Ra1 26.Ra1 Nde5 27.Nh2 (27.Ne5 Re5 28.Ra2+/–) 27...Ra8 (better is 27...Qd7!? 28.ed5 Qd5 29.Qd5 cd5=) 28.Rd1+/– Ra3 29.ed5 cd5 30.Ne2 Qb8 (30...Ra4 31.Nc3 Ra6 32.Nd5+–) 31.Nf4 Nc6 32.Qf6 d4?? (better is 32...Ra6 33.Nd5 Qe5+–) 33.Ng4+– (33.Qc6?! Qf4 34.g3 Qg5 35.Qb5 Ne5+/–) 33...Ra7 (33...Qf8 34.Qc6 d3 35.Qb5 Nb2+–) 34.Nh6 Kh7 35.Nf7 (35.Qc6?! Qf4 36.Ng4 d3+/–) 35...Ne7 (35...N4e5 36.Ng5 Kg8 37.Ng6 Ng6 38.Qg6 Kf8+–) 36.Ne6 Nf5 1–0. Mitrovic,Zivadin (2185) – Vencl,Radivoje (2280), Stari Banovci SER, Vojvodina Ch Div2, 2013.

8.h3 dc4 9.Bc4 b5 10.Be2=+.

8.h3 Ne4 9.Nd4 Nc3 10.Bc3 Bg6 11.Be2 Bf6 12.0-0 e5 13.Nf3? (better 13.Nb3=) 13...d4-+ 14.Bb2 d3 15.Bd3 (15.Be5 de2 16.Qe2 Bd3 17.Bf6 Be2 (17...Qf6? 18.Qd3 Rd8 19.Qc3+-) 18.Bd8 Bf1-+) 15...Bd3 (15...Qd3?! 16.Be5 Qc4 17.Bf6 gf6 18.d4-/+) 16.Re1 e4 17.Nd4 (17.Ne5 Be5 18.Be5 Bc4-+) 17...Bc4 18.Rc1 Bd3 19.Qb3 Nd7 20.f3 Rc8 (20...Ne5!? 21.Rc3-+) 21.fe4 Be4 22.Rf1 (22.d3 Bd5 23.Qc2 c5-+) 22...Bd5 23.Qc2 c5 (23...Re8 24.Rf2-+) 24.bc5 (24.Rf5 Bg2 (worse 24...cd4 25.Qc8 Qc8 26.Rc8 Rc8 27.Rd5 de3 28.Bf6 Nf6 29.Rd3-+) 25.bc5 Bc6-+ (25...Bh3?! 26.Rh5 g6 27.Rh3-+)) 24...Rc5 25.Qf5 (25.Qa4 b5 26.Rc5 ba4 (26...Nc5?! 27.Qb5 Qc7 28.Qe2-+) 27.Rd5 Re8-+) 25...Rc1 (25...Bc4!? 26.Rc4 Rf5 27.Rf5-+) 26.Rc1 Nb6 27.Bc3 Re8 28.Rf1 (28.Nb5 Bc3 29.Rc3 a6-+) 28...Be4 (28...Nc4 29.a4-+) 29.Qg4 Bg6 30.Qf3 Nd5 31.Bb2 Qa5 32.Rf2 Qb6 33.Ba1 (33.Qd5 Qb2 34.Qb5 Qb5 35.Nb5 Be5-+) 33...Bd3 (better 33...Qb1!? 34.Rf1 Qa2 35.Rd1-+) 34.Qd5 Qb1 35.Kh2 Qa1 36.Qd7 Do you see the mate threat? 36...Rf8 37.Qb7 Be5 (37...Bd4 38.ed4 Qd4 39.Rf3-+) 38.g3 Be4 (better 38...Bd4 39.ed4 Qa3-+) 39.Qe4= Bd4 40.ed4 (40.Qd4!? Qa3 41.Rf4=) 40...Qa3=+ 41.d5 Qd6 42.d4 Rd8 Exerts pressure on the isolated pawn 43.Rf5 g6 44.Rg5 (44.Re5 a5=+) 44...f6-/+ 45.Rg4 f5 (45...f5 46.Qf5 Qd5=; 45...Qd5!? 46.Qe2 f5-/+) 0-1. XuMEPA (2170) - faulschlamm1 (2060), Rated Blitz game, lichess.org, 2014.

8.Nh4 Bg4 9.Qc2 Bh5=.

8.d4 dc4

9.Bc4= b5 10.Bd3 =.

9.Bc4 Nd5 10.0-0 Bg4 (10...a5 11.b5=) 11.e4 (11.Nd5 ed5 12.Bd3 a5=) 11...Nc3 12.Bc3 Bg5 (12...Nd7 13.h3 Bh5 14.Be2+=) 13.h3 (13.Qd3 Bf4+=) 13...Bh5 14.g4 Bg6 15.Ng5 Qg5 16.Qd3 (16.f4 Qe7 17.Qf3 f6+/–) 16...Qf4 17.Rae1 b5 (17...Nd7 18.Qg3 Qg3 19.fg3+=) 18.Bb3+/– h6 (18...Nd7 19.Qe3 Qd6 20.f4+/–) 19.Qe3 Qe3 20.Re3 Nd7 21.f4 Nf6 22.f5 ef5 23.gf5 Bh7 24.Kg2 Rfe8 25.Rfe1 Rad8 26.Bc2 Nd7 27.Rg3 Nb6 28.Rf1 Nc4 29.Bd3 Na3 30.d5! cd5? 31.Rg7 Kf8 32.Rh7 Nc4 33.Bf6 (33...Ne3 34.Kg1 Nf1 35.Rh8) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Bc4 Nbd7 10.0-0 =.

9.Bc4= Bg6 10.0-0 Nd5 (10...Nbd7 11.Qb3=) 11.Ne5+= Bf6 (11...Nc3!? 12.Bc3 Be4+=) 12.Ng6+/– hg6 13.Ne4 (13.Qf3 Nd7+/–) 13...b5 14.Bb3 Qe7 (14...a5 15.ba5 Be7 16.Qc2+/–) 15.Qc2 Nb6 (15...Rd8 16.Rfc1+/–) 16.Rfc1 Re8 17.Nf6 gf6 18.e4 (18.Qc3 Qd6+/–) 18...f5 (18...a5 19.Qd2+/–) 19.d5+– cd5 20.ed5 Nd5? (better is 20...e5+–) 21.Bd5 ed5 22.Qc3 f6 23.Re1 Qf7 24.Re8 Qe8 25.Qf6 Qd7 26.Re1 Nc6 27.Qh8 Kf7 28.Qg7# 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Bc4= Bg6 10.Ne5 Bf5 +=.

8.d4 Nbd7

9.Rc1 =.

9.c5 a6 10.Bd3 Bg6 11.0-0 Ne8 (11...Bd3 12.Qd3 Qc7 13.Rab1=) 12.Qc2 (12.Bg6 fg6 13.e4 Nc7+=) 12...f5 (12...Bd3!? 13.Qd3 Nef6=) 13.Ne2+/– Bf7 14.Ne5 Ne5 15.de5 g6 16.f4 Ng7 17.Bd4 Qd7 18.Qd2 Bd8 19.a4 Be7 20.a5 Rae8 21.h3 Bd8 22.Kf2 (22.Bb2 Bc7+/–) 22...Re7 (22...Bh4 23.g3 Bd8 24.Rad1+/–) 23.Rh1 Be8 24.Rag1 Kf7 25.Ke1 Rh8 (25...Qc7 26.h4+/–) 26.g4 Kf8 27.Ng3 Rg8 28.Be2 Rf7 29.g5 Bc7 30.h4 Ke7 (30...Re7!?+/–) 31.h5+– Rff8 32.h6 Bf7?? (better is 32...Nh5+/–) 33.hg7+– Rg7 34.Rh6 Ra8 35.Rgh1 Bg8 36.R1h4 Qe8 37.Bf3 Qf7 38.Qh2 Rf8 39.Nh5! Kd8 40.Ng7 Qg7 41.Rh7 Bh7 42.Rh7 Qg8 43.Qh6 (43...Re8 44.Rg7+–) 1–0. Schnirch – Vogel, Bosen, 1985.

9.c5 b6 10.h3 Qb8 11.cb6 a5 12.b5 Qb6 13.Rc1 cb5 (13...Rac8 14.Nh4=+) 14.Bb5 a4 15.g4 (15.Nh4 Be4 16.0-0 Ra5 17.Bd7 Nd7 (17...Qb2?! 18.Ba4 Qa3 19.f3–/+) 18.Ne4 de4–+ (18...Bh4?! 19.Bc3 de4 20.Ba5 Qa5 21.Rc4–/+)) 15...Ne4 16.gf5 (16.Qe2!? Nc3 17.Bc3–+) 16...Nc3–/+ 17.Rc3 Qb5 18.Qe2 Qb6 19.fe6 Qe6 (19...fe6 20.Rc2–/+) 20.Qc2 Rab8 21.h4 (21.Rc7!?–/+) 21...Nf6–+ 22.Ne5 (22.h5 Ne4 23.h6 Qf5 24.hg7 Kg7 25.Rg1 Kh8–+) 22...Ne4 23.Rc6 Bd6 24.Nd3 (24.f3!? Ng3 25.Rg1–+) 24...Qg4–+ 25.Qe2 Qg2 26.Rf1 (26.Qf1 Qf3 27.Rg1 Rb3–+) 26...Rfe8 27.Bc1 (27.h5 Rb3–+) 27...Rb3 28.Bb2 0–1. Ipsissimus – Marekt, internet, 2019.

9.Bd3 =.

9.Be2 Ne4 (9...dc4 10.Bc4 a5 11.b5=) 10.Ne4 Be4 11.0-0 (11.c5 b6=) 11...Bd6 (11...Bf3 12.Bf3 dc4 13.Qc2=) 12.c5 Bc7 13.b5 (13.Qa4 Qf6=) 13...Rc8 (13...Bf3 14.Bf3 cb5 15.Qe2+=) 14.Qa4 (14.Nd2 Bf5=) 14...Bb8 15.Rfc1 (15.Nd2 Bf5=) 15...Qc7 16.g3 Bf3 (16...cb5!? 17.Qb5 Rfe8=) 17.Bf3+= f6 (17...cb5 18.Qb5 a6 19.Qd3+=) 18.Rab1 e5 19.bc6 bc6 20.Bc3 Qd8 (better is 20...ed4!? 21.ed4 Rce8+/–) 21.Be2 ed4 22.ed4 (22.Bd4?! Qe8+/–; 22.Qd4?! Qe7=) 22...Qe7 (22...f5 23.Ba6 f4 24.Bc8 Qc8+–) 23.Ba6 Rce8?! (23...f5 24.Bc8 Rc8 25.Qa6+–) 24.Bb7 (better is 24.Qc6 Qf7 25.Bb7 Re7 26.Qd5 Bc7+–) 24...Qe4 (24...Nb6 25.Qc6 Rc8+–) 25.Bc6 Ne5 (25...Nc5 26.dc5 Qa4 27.Ba4+–) 26.de5 (26.Be8?! Nf3 27.Kf1 Re8 28.Rb8 Rb8=) 26...fe5 (26...Qa4 27.Ba4 fe5 28.Be8 Re8+–) 27.Be8 Qf3 Black intends e4 (27...Qf5 28.Rc2 Bc7 29.Rb7+–) 28.Be1 e4 (28...Bc7 29.Bc6 a5 30.Rb7+– (30.Ba5?! Qf2 31.Kh1 Qf3 32.Kg1 Qf2 33.Kh1 Qf3 34.Kg1 Qf2=)) 29.Rb8 e3 30.Qd4 ef2 31.Bf2 Qf5 32.c6 Qg5 33.Re1 1–0. Janek – Tundja, internet, 2017.

7.Nc3 dc4

8.Bc4 a5 9.b5 =.

8.Bc4 b5 9.Be2 =.

8.Bc4 Bd3 9.Bd3 Qd3 10.Ne5 Qd6 11.d4 0-0 12.0-0 =.

8.Bc4 Bd3 9.Bd3 Qd3 10.Ne5 Qd6 11.d4 b5 (11...Nbd7!? 12.Nc4 Qc7=) 12.Rc1 0-0 13.Qf3 Nd5 14.0-0 Nd7 (14...a5!?=) 15.Nc4?? (better is 15.Ne4 Ne5 16.de5+/–) 15…bc4–+ 0–1. Jensen,Kristian Rohde – Paltrineri,Mario, ICCF corr, 1991.

7.Nc3 Nbd7

8.d3 0-0 9.Be2 h6 10.0-0 e5 11.Nh4 Bh7 12.f4 (12.cd5!? cd5 13.Nf3=) 12...ef4+= 13.ef4 dc4 14.dc4 Ne4 (14...a5 15.b5+=) 15.Nf3 Qb6 16.Qd4 (16.Kh1 Rad8=) 16...Bf6 (better is 16...c5!? 17.Qe3 cb4 18.Qb6 Nb6 19.ab4 Bb4 20.Ne4 Be4–/+) 17.Qb6= ab6 18.Nd1 Bb2 19.Nb2 Nc3 20.Bd3 Rfe8 21.Rfe1 Be4 (21...Re1 22.Re1 Nf6 23.Bh7 Kh7 24.a4=) 22.Be4+= Re4 23.Re4 Ne4 24.Nd3 Kf8 25.Nf2 Ndf6 26.Ne4 Ne4 27.Re1 f5 28.Re3 Rd8 29.h3 Rd1 30.Re1 Re1 31.Ne1 Nd2 32.c5 bc5 33.bc5 Ke7 34.Nc2 Ne4 35.Nd4 g6 36.g4 fg4 37.hg4 Nc5 38.Kg2 Ne6 39.Ne2 b5 40.Kf3 Kf6 41.Ke3 h5 42.gh5 gh5 43.Ng3 h4 44.Ne4 Kf5 45.Nd6 Kg4 46.f5 Nf4 47.f6 Nd5 48.Kf2 Nf6 49.Nc8 Ne4 50.Kg1 Kg3 51.Ne7 c5 52.Nf5 Kg4 53.Nh6 Kf4 54.Kh2 0–1. David,Dorian_Ciprian (1725) – Florea,Leonard_Gelu (2000), Slanic Moldova ROM, 1st Div (m), 2011.

8.cd5 cd5 9.Be2 a5 =.

8.cd5 ed5 9.Be2 0-0 10.0-0 Ne4 (10...a5 11.b5 c5 12.Rc1=) 11.Nd4+= Bg6 (11...Nc3 12.dc3 Bg6 13.c4=) 12.f4 f5? (better is 12...h6+=) 13.Ne6+– Qe8 (13...Qc8 14.Nf8 Qf8 15.Qc2+–) 14.Nf8 (14.Ne4 fe4 15.Bg7 Bf6+–) 14...Nc3 (14...Qf8 15.d3 Nc3 16.Bc3+–) 15.Bc3 Qf8 16.Rc1 (16.Qc2 Qf7+–) 16...Be8 (16...Re8 17.Qc2+–) 17.Qc2 c5 (17...Bg6 18.Rfe1+–) 18.Bf3 Nb6 19.bc5 Bc5 20.Bg7! Qg7 (20...Kg7 21.Qc5) 21.Qc5 Bc6 22.Rc2 Qf7 (22...Qf8 23.Rfc1+–) 23.Qd4 Nc4 24.a4 a6 (24...Qe6 25.Be2 Nd6 26.Rf3+–) 25.d3 Nd6 26.Rc5 Re8 (26...Rd8 27.Bd5 Bd5 28.Rd5+–) 27.Bd5 Bd5 28.Rd5 Nc8 29.Rf3 (29.Rd7 Ne7 30.Rb7 Nc6+–) 29...Ne7 30.Rg3 Kf8 (30...Ng6 31.h4 Re7+–) 31.Qh8 Ng8 32.Rf5! Qf5 33.Qg7# 1–0. marekt – arkady08, ChessWorld.net, 2003.

8.Be2 0-0 9.0-0 Ne4 10.Nd4 (10.d3 Nc3 11.Bc3 Bf6=) 10...Bg6 (10...dc4 11.Nf5 ef5 12.Qc2=) 11.f4 (11.Ne4 de4 12.d3 e5=) 11...Nc3 (11...dc4 12.Ne4 Be4 13.Bc4=) 12.Bc3 Bf6 (12...dc4 13.Bc4 Nb6 14.Be2=) 13.Qb3 (13.cd5 cd5 (13...ed5? 14.f5+–) 14.Rc1 Rc8=) 13...Bd4 (13...dc4!? 14.Bc4 c5=) 14.Bd4+= f5 (14...dc4 15.Qc4 Nb6 16.Qc5+=) 15.b5 (15.d3 Qe7+–) 15...cb5? (better 15...c5 16.Bb2 Nb6+–) 16.cb5 1–0. jaddwarrior – albino22, ChessWorld.net, 2014.

8.Be2 0-0 9.cd5 Nd5 10.Nd5 cd5=.

8.Be2 0-0 9.h3 h6 (9...dc4 10.Bc4 Nb6 11.Be2+=) 10.g4 (10.cd5 cd5 11.0-0 a5=) 10...Bh7 (10...Bg6 11.cd5 Nd5 12.h4+=) 11.g5= hg5 12.Ng5 dc4 13.Nh7 Nh7 14.Bc4 Ne5 15.Be2 Nd3 16.Bd3 Qd3 17.Qb1 (17.Rg1 e5=) 17...Rad8 18.Qd3 (18.Ne4 Qd5 19.Rg1 e5=) 18...Rd3 19.Ne4 f5 (19...Rfd8 20.Bd4=) 20.Nc5 (20.Rg1 Rf7 21.Nc5 Bc5 22.bc5 Rd5=) 20...Bc5 21.bc5 Rfd8 (21...Nf6 22.Bd4=) 22.Bd4 (22.Rg1 g5+=) 22...Rb3 (22...e5 23.Be5 Ng5 24.Bc3=) 23.Ke2+= Nf6 (23...Rd7 24.Rhb1 Rb1 25.Rb1+=) 24.Rhb1+/– Rb1 25.Rb1 Rd7 26.d3 (26.Bf6 gf6 27.Rb3 Kf7+/–) 26...Kf7 27.Be5 g6 (27...Nd5 28.f4+/–) 28.f3 Kg7 (28...g5 29.Rg1+/–) 29.e4 (29.f4 Kf7+/–) 29...Kf7 30.Ke3 Ke7 (30...g5 31.Rg1 Nh7 32.f4 gf4 33.Kf4 fe4 34.Rg7 Ke8 35.Rd7 (worse is 35.Ke4 Rg7 36.Bg7 Ng5 37.Ke3 Nh3+=) 35...Kd7 36.de4+/–) 31.Kf4 (31.f4 Kf7+/–) 31...Nh7 (31...b5 32.cb6 ab6 33.Kg5 Nh7 34.Kh6+/–) 32.d4 (32.h4 Ke8+/–) 32...Kf7 (32...g5 33.Ke3+/–) 33.h4 Kg8 34.ef5 ef5 (34...Rf7 35.Rg1 Rf5 36.Ke4+/–) 35.h5+/– gh5 36.Rg1 Kf8 (36...Kf7 37.Kf5 Nf8 38.Rg5+–) 37.Kf5 (37.Rh1 Rf7 38.Rh5 Ke8+–) 37...Rf7 38.Kg6 Rd7? (better is 38...Ke8 39.f4 h4+–) 39.Kh5 (better is 39.Bd6 Ke8 40.Re1 Kd8+–) 39...Rd5 (39...Rf7 40.Bd6 Ke8 41.Rg8 Kd7+–) 40.Kh6 Rd7 1–0. Welling,Gerard (2350) – Bannon,Brian, Cardoza US op, 1998.

8.Be2 dc4 9.Bc4 0-0 10.0-0 =.

7.d4 0-0

8.a4 Bg6 9.c5 Nbd7 10.Nc3 Re8 11.h4 Ne4 12.Ne2 Bf6 13.g4 e5 14.h5 ed4 15.ed4 b6 16.hg6 hg6 17.Qd3 bc5 18.bc5 Ndc5 19.dc5 Nc5 20.Qd2 Bb2 21.Qb2 Nd3 22.Kd2 Nb2 23.Ra3 Nc4 24.Kc3 Na3 0-1. James_Flynn (2085) - avv (2105), Rated Bullet game, lichess.org.

8.Be2 a6 9.Nbd2 Nbd7 10.0-0 Bd6 11.c5 Bc7 12.a4 White intends b5 (12.Nh4 Re8+=) 12...Qb8 (12...h6 13.Nh4=) 13.h3 Ne4 14.b5 (14.Ne4 Be4 15.b5 Ba5+=) 14...ab5 (14...Qd8 15.b6 Bb8 16.Qb3=) 15.ab5+= Nd2 (15...Ra1 16.Qa1 Bh2 17.Kh1 Nd2 18.Nd2+=) 16.Qd2+– Ra1 17.Ra1 Bd8 18.b6 Bf6 19.Qc3 h6 20.Ra7 Rd8 21.g4 (21.Qd2 Bb1+–) 21...Bh7 22.Ne5 Be5 (better 22...Be4!?+=) 23.de5+– Be4 24.f3 Bh7 25.f4 (25.h4 f6 26.ef6 Qg3 27.Kf1 Qh3 28.Ke1 gf6+=) 25...Be4 26.Kf2 g5 27.Bf3 Bf3 (27...Nf8 28.Qd4+–) 28.Kf3 gf4 29.ef4 Rf8 30.Kg2 Rd8 31.Qd4 Nf8 (31...Rf8 32.f5 f6 33.fe6 (33.ef6?! e5 34.Qc3 Rf6+–) 33...Ne5 34.Qe3+–) 32.Ra3 (better 32.f5!? Kh7 33.Qd3 Kg7+–) 32...Nd7 33.Rf3 White prepares f5 (better 33.Qe3 Kh7 34.Qd3 Kg7 35.Bd4+–) 33...Qc8?? (better 33...Qa8+=) 34.f5+– Nb6?? (34...Kg7 35.Qf4 Nc5 36.f6 Kg6+–) 35.cb6 c5 (35...Kg7 36.Qf4 Rg8 37.fe6 Qe6 38.Qf7 Qf7 39.e6 Qf6 40.Rf6+–) 36.Qf4 d4 (36...Kh7 37.Bc1 Rh8 38.Qh6 Kg8 39.Qg5 Kf8 40.fe6 Qe6 41.Rf6+–) 37.f6 (37.Qh6 Rd5 38.f6 Qf8 39.Qg5 Kh7 40.Qh5 Kg8 41.Bc1 Re5 42.Qe5 Kh8 43.Qh5 Kg8 44.Bh6 d3 45.Bf8 e5 46.Qh6 d2 47.Qg7) 37...Kh7 (37...Kf8 38.Qh6 Ke8 39.Qg7+–) 38.h4 White prepares the advance g5 (38.Bc1 Qc6 39.Qh6 Kg8 40.Qg7) 38...Rg8 (38...Rd7+–) 39.g5 (better 39.Bc1 Rg6 40.h5+–) 39...hg5?? (39...Qc6+–) 40.hg5 Rh8 41.Bc1 Kg8 42.g6! Qc6 (42...fg6 43.f7 Passed pawn) 43.Qg5 (43.Qg5 Rh2 44.Kh2 Qd6 45.ed6 Kf8 46.gf7 Kf7 47.Qg7 Ke8 48.Qe7) 1–0. Bendega (2035) – FTorresFerreira (1920), lichess.org, 2021.

7.cd5 cd5

8.Qa4 Nbd7 9.Nc3 0-0=+ 10.Qb5 Nb6=+.

8.Qa4 Nbd7 9.Nc3 0-0 10.Be2 Nb6 (10...a5 11.Qb5=+) 11.Qb3= Rc8 12.d3 h6 13.0-0 Bd6 (13...Qd7 14.Rac1=) 14.Rac1 Nbd7 (14...Qd7 15.a4=) 15.Rc2 Qb6 16.Rfc1 Bd3 17.Bd3 Nc5 18.Na4 Nb3 19.Nb6 Rc2 20.Bc2?? (better 20.Rc2 ab6 21.Bf6 gf6 22.Rc3+–) 20...Nc1–+ 21.Na4 Rc8 22.Ne1 Rc2! 23.Nc2 Nd3 24.Bd4 (24.Bf6 gf6 25.Nd4 a6–/+) 24...b6 (24...Ng4 25.f4 b6–/+) 25.Kf1 (25.Bf6!? gf6 26.f4–/+) 25...e5 (25...Ng4 26.Ke2 Nc1 27.Kd2 Nb3 28.Ke2 Nh2 29.Nc3–+) 26.Ba1 Ne8 (26...Ng4 27.Nc3–+) 27.Nc3 Nc7 28.f3 f5 Black plans e4 29.Ke2 e4 30.h3 (30.Nd4 g6–/+ (30...Bh2?! 31.Nf5 Be5 32.fe4 de4 33.Ne4=)) 30...Ne5 (30...Be5 31.a4–+) 31.Nd4–/+ g6 32.Ncb5 Nc4 33.Nd6 Nd6 34.Nc6 a6 (34...Nc4!?–/+) 35.Be5=+ Nde8 36.a4 (36.h4 Kf7=+) 36...Kf7–/+ 37.Bd4 b5 38.a5 Ke6 (38...g5 39.g4 f4 40.Ne5 Kg8 41.Ng6 fe3 42.Ne7 Kf7 43.Nf5=+) 39.Nd8=+ ½–½. Cottarelli,Franco (1930) – Tamburini,Lorenzo (2075), Open Salsomaggiore ITA, 2005.

8.Qa4 Nbd7 9.Nh4 Bb1 10.Rb1 a5=.

8.Bb5 Nbd7 =.

8.Nd4 Bg6 =.

8.Be2 0-0 9.0-0 Nbd7 10.Nc3 a6 11.Nh4 Be4 12.d3 (worse 12.Ne4 de4 13.g3 a5=+) 12...Bg6 13.Ng6 hg6 14.Qb3 Rc8 15.Rac1 Qb6 (15...Bd6 16.Qa4+=) 16.Na4 Qa7 17.Bd4 Qb8 18.Bf3 (18.f4 b6+=) 18...b5 (18...Bd6 19.g3=) 19.Nc5+= Nc5 20.Bc5 Bc5 21.Rc5 (21.bc5 Rc6+=) 21...Rc5 (21...Nd7 22.Rcc1=) 22.bc5+= Qb7 23.Rc1 Qc6 24.d4 Rc8 25.Ra1 Ne8 26.a4 Nc7 27.ab5 ab5 28.Qa3 Ra8 29.Qb2 Ra1 30.Qa1 Qa6 31.Qa6 Na6 32.Be2 Nc7 33.Kf1 Kf8 34.Ke1 Ke7 35.Kd2 (35.f4 Kd7+/-) 35...Kd7 36.Kc3 (36.f4 Kc6+/-) 36...Kc6 (36...g5 37.Kb4 Kc6 38.h3+=) 37.f3 (37.f4 f6+/-) 37...Kb7 (37...e5 38.Kb4+= (worse 38.de5 Kc5 39.f4 b4 40.Kd3 Nb5=)) 38.Kb4+/- Ka6 (38...Kc6!?+/-) 39.h4+- Kb7? (better 39...f6!?+-) 40.Bb5 Kc8 41.Bc6 Kb8 42.Ka5 Ka7 43.g4 f6 (43...Kb8 44.Kb6+-) 44.f4 g5 45.fg5 fg5 46.h5 Kb8 47.Kb6 Kc8 48.Ba4 Kd8 49.Kc6 Ne8 50.Bc2 Nf6 51.Kd6 (better 51.Bg6 Ke7 52.Kb7+-) 51...Ng4+/- 52.c6 (52.e4 Ne3 53.Bd3 g4+-) 52...Ne3 53.c7 (53.Bd3!? Nf5 54.Ke6 Nd4 55.Kd6 Nc6 56.Kc6+=) 53...Kc8+= 54.Bd3 Nc4 55.Ke6 Kc7 56.Kf7 (56.Kd5 Nd2+=) 56...g4= 57.Kg7 g3 (better 57...Ne3 58.h6 g3=) 58.Bf1+- Ne3 59.Bh3 Nf5? (better 59...Kc6+-) 60.Kf6 (60.Bf5?? g2 61.h6 g1Q 62.Kf6 Qd4 63.Kf7 Qf4-+) 60...Nd4 (60...Nh6+-) 61.h6 Ne2 62.h7 Nf4 63.h8Q g2 64.Bg2! (64.Bg2 Ng2 65.Qh2 Kc6 66.Qg2 Kd6 67.Qg3 Kc5 68.Qc3 Kd6 69.Qb4 Kd7 70.Qb7 Kd6 71.Qb6 Kd7 72.Ke5 d4 73.Qb7 Kd8 74.Ke6 d3 75.Qd7) 1-0. carlos78 (2125) - pacal56 (2110), Rated Blitz game, lichess.org, 2014.

8.Be2 0-0 9.Nc3 Nbd7 10.0-0 Rc8 11.Nd4 Bg6 12.f4 a6 13.Rc1 Ne4 (13...Bd6 14.f5 ef5 15.Nf5=) 14.f5+= Nc3 15.Bc3 (worse is 15.dc3 ef5 16.Nf5 Bf5 17.Rf5 Nf6=) 15...ef5 16.Nf5 Bf5 17.Rf5 Bf6 (17...Nf6 18.Bf6 Bf6 19.Rc8 Qc8 20.Rd5+/–) 18.Rd5 Bc3? (better is 18...Qe8!? 19.Rd7! Qd7+–) 19.dc3+– (19.Rc3?! Qe7 20.Bg4 Nb6 21.Rc8 Rc8 22.Bc8 Nd5+–) 19...Rc7 20.Bg4 Qe7 21.Bd7 (21.Rd7?! Rd7 22.Bd7 Rd8+/–) 21...Qe3 22.Kh1 Rc3 23.Rc3 Qc3 24.Rd3 Qf6 25.Ba4 g6 26.Bb3 h6 (26...Kg7 27.Rf3 Qe7 28.Kg1+–) 27.Rd7 Kh7 28.Rb7 Rd8 29.Qg1 Rf8 30.Bc4 Kg7 31.h3 Qc6 (31...a5 32.ba5 Qf4 33.Qa1 Kg8 34.Qf1 Qf1 35.Bf1+–) 32.Qd4 (32.Qd4 Qf6 33.Qf6 Kf6 34.Ra7+–) 1–0. marekt – nimzo1, ChessWorld.net, 2016.

7.cd5 ed5

8.Be2 0-0 9.0-0 h6 10.Nd4 Bh7 11.Nb3 Nbd7 12.Nc3 Re8 13.Rc1 Bd6 14.Na4 Qe7 15.Nac5 Nc5 16.bc5 Bc7 17.a4 Rab8 18.a5 Bf5 19.f4 Ne4 20.Bg4 Bh7 21.Ba1 Bd8 22.Qe2 a6 23.Rfe1 Nf6 24.Bf3 Qc7 25.d3 Nd7 26.Bg4 Nf6 27.Bh3 Qe7 28.Bd4 Bc7 29.Qd2 h5 30.Qc3 Ng4 (30...Bg6!?+=) 31.Bg4 hg4 32.Bg7 Bd3 33.Bh6 (33.Qd3?! Kg7 34.Rb1 Rh8=) 33...f6 34.Qd3 Qh7 35.Qd1 Qh6 36.Qg4 Qg7 37.Qf5 Re4 38.Nd2 Re7 39.Ra1 Rbe8 40.Nf3 Re4 41.Ra3 1–0. forsetinn (2345) – s1lence (2270), gameknot.com, 2015.

8.Be2 a5 =.

7.Be2 0-0

8.0-0 dc4 9.Bc4 a5 10.b5 =.

8.0-0 dc4 9.Bc4 b5 10.Be2 =+.

8.0-0 dc4 9.Bc4 Nbd7 10.d4 a5 11.b5 Nb6 12.Be2 cb5 13.Bb5 Nbd5 (13...Ne4 14.Nc3=) 14.Nc3 (14.Nbd2 Rc8=) 14...Nc3=+ 15.Bc3 Ne4 16.Be1 Qd5 17.a4 Rfc8 18.Rc1 (18.Bd3!?=+) 18...Nd6–/+ 19.Be2 Rc1 20.Qc1 Rc8 (20...Qa2 21.Bd2 Rc8 22.Qa1–/+) 21.Qa1 Ne4 (21...Rc2!? 22.Bd1 Rc7=+) 22.Ne5 Bg5 (22...Bb4 23.Qb2 Be1 24.Re1=) 23.g4 Bg6 24.f4 (24.Qa3 Bf6 25.Ng6 hg6= (25...fg6? 26.Bf3 Qd6 27.Qd3+–)) 24...Bf6 25.f5?? (better 25.Qb2 Be5 26.de5= (26.fe5? Ng5 27.h4 Rc2–+)) 25...ef5 (25...Be5 26.Qd1 Bh2 27.Kh2 ef5 28.Kg1–+) 26.gf5 (26.Ng6 hg6 27.Qb1–+) 26...Be5?? (better 26...Ng5 27.Bf3 Nf3 28.Nf3 Bf5–+) 27.de5?? (better 27.fg6 Bd6 28.gf7 Kf8 29.Qb1 Qg5 30.Kh1=) 27...Bf5 (better 27...Ng5 28.Bg4 Bh5–+) 28.Rf5+– Rc6 (28...g6 29.Rf4 Ng5 30.Rh4+–) 29.Rf3 (better 29.Qd4 Rg6 30.Bg3 Qd4 31.ed4 Ng3 32.hg3+–) 29...Rc2+= 30.Bf1 (30.Bd1 Ng5 31.Qd4 Nf3 32.Bf3 Qd4 33.ed4 Rc1+–) 30...Ng5 31.Rg3 Nf3 Attacks the isolani on e5 32.Rf3 Qf3 33.Qd4 g6 34.Bh4 h6 (34...h5 35.e6 fe6 36.Qd8 Qf8 37.Qa5+=) 35.Qf4 Qd5 36.Qh6 Qe5 37.Bg3 Qa1 (37...Qe4 38.Qf4 Qb4 39.h3+=) 38.Bd6 Qf6 39.Qf8 (39.Qf4!? Qf4 40.ef4+=) 39...Kh7= 40.Bf4 Ra2 41.Qe8 Ra1 42.h4 Qf5 (42...Qe6 43.Qb5=) 43.Kf2 Ra2? (better 43...Qf6 44.Bg2 Qh4 45.Kf3 Qf6=) 44.Kg3+– Qd5?? (better 44...Qe6 45.Qe6 fe6+–) 45.Be5 (45.Be5 Qe5 46.Qe5 Ra4 47.Qe8 f5 48.Qa4 b5 49.Bb5 Kg8 50.Bc4 Kf8 51.Qd7 f4 52.ef4 a4 53.Qf7) 1–0. Valenta,Vit (2085) – Kalinowska,Zuzanna (1895), Olomouc Czech Republic, Summer Open, 2017.

8.0-0 Nbd7 9.c5 Qc7 =.

8.0-0 Nbd7 9.d4 dc4 10.Bc4 a5 11.b5 =+.

8.0-0 Nbd7 9.d4 h6 10.Nbd2 a5 11.b5 cb5 12.cb5 Qb6 13.Rc1 Rfc8 14.Ne5 (14.Qa4 Bd6=) 14...Ne5 (14...Rc1 15.Qc1 Qd8 16.Qd1+=) 15.de5 Ne4 (15...Nd7 16.Bd4 Qd8 17.Qa4=) 16.Ne4 Be4 (worse is 16...de4 17.Qd7 Re8 18.Qc7 Qc7 19.Rc7+/–) 17.Qd2 Qd8 18.Bd3 (18.f3 Bf5=) 18...Bd3 19.Qd3 Rc1 20.Rc1 Rc8 21.Qd2 (21.Rc3 a4=) 21...Rc7 (21...Rc4 22.Rc4 dc4 23.Bd4=) 22.Kf1 ½–½. Makowski,Zbigniew – Krabbe,Wolf Dieter, corr (year?).

8.0-0 Nbd7 9.Nh4 Bb1 10.Rb1 e5 (10...dc4 11.Bc4 b5 12.Bd3=) 11.Nf5 Rc8 12.f4 e4 13.Qe1 Nb6? (better 13...Ne8+=) 14.Qg3+– (14.Ne7?! Qe7 15.c5 Nbd7=) 14...g6 15.c5 (better 15.Qg5!? Nbd7 16.Bg4+– (16.Ne7?! Qe7 17.Bd4 dc4+=)) 15...Nbd7+– 16.Qg5 Re8 (16...Rc7 17.Bg4 h6 18.Nh6 Kh7 19.Nf5 Ng4 20.Qg4+–) 17.Ne7 (17.Nh6 Kg7 18.f5+–) 17...Qe7+– 18.f5 Rf8 19.Rf4 Rce8 20.Rbf1 Nh5? (better 20...Kg7+–) 21.f6+– Nhf6 22.Rf6 1–0. Vojinov,Danijel (1970) – Bradac,Simon, TCh–SLO Div (9), 2018.

8.0-0 h6 9.d4 Nbd7 10.Nbd2 Ne4 (10...a5 11.b5+=) 11.Ne4= Be4 12.Nd2 Bg6 13.b5 Rc8 14.a4 Nf6 15.Nf3 dc4 16.bc6 (16.Rc1 cb5 17.ab5 Qd5+=) 16...Rc6 (better is 16...Qb6!? 17.Ba3 Ba3 18.Ra3 Rc6+=) 17.Ne5= Rc7 18.Bc4 Be4 19.f3 Bd5 20.Bb5 a6 21.Bd3 Bd6? (better is 21...Nd7=) 22.e4+– Bc6 23.Nc6 Rc6 24.e5 Qb6 (better is 24...Nd5 25.ed6 Ne3+–) 25.Rf2 (25.ed6 Qb2 26.Rf2 Qc3–+ (26...Qd4?? 27.Bh7 Kh7 28.Qd4+–)) 25...Be7 26.ef6 Bf6 27.a5 Qa7 28.Kh1 Rd8 29.Rd2 Rcd6 30.Ra4 g6 (30...Bg5 31.Re2+–) 31.Be4 Bg5 32.Rb4 (32.Rc2 b5 33.ab6 Rb6+–) 32...R6d7 (32...b5 33.ab6! Rb6 34.Rb6 Qb6 35.Rc2+–) 33.Rb6 (33.Rc2 Be7 34.Rb6 Qb8+–) 33...f5 (33...Bd2 34.Qd2 h5+–) 34.Qb3 White plans d5 34...fe4 (34...Kg7 35.Rc2 Re7 36.Bb7 Bf6+–) 35.Qe6 Rf7 36.Qg6 Rg7 37.Qe6 Rf7 (37...Kh7 38.d5 Qb8 39.Rc2 ef3 40.Qf5 Kg8 41.Rg6+–) 38.d5 Rdd7 (38...Kf8 39.Ba3 Kg8 40.Rc2+–) 39.Rc2 (39.Qe8 Rf8 40.Qg6 Rg7 41.Qg7) 39...Qb8 (39...Qa8 40.Qe5 Rg7 41.Re6 ef3 42.Re8 Qe8 43.Qe8 Kh7 44.Qe4 Rg6 45.Rc8 Bf6 46.Bf6 fg2 47.Kg1 Rdg7 48.Bg7 b6 49.Bd4 ba5 50.Rh8) 40.Qg6 Rg7 (40...Kf8 41.Ba3 Be7 42.Qh6 Ke8 43.Be7 Rde7+–) 41.Bg7 Rg7 42.Qe6 1–0. Morriss,Pete (1990) – Collins,Peter M (2055), British Senior, 2013.

8.0-0 h6 9.Nd4 Bg6 10.f4 Qc8 11.Nc3 (11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 Rd8=) 11...a5 (11...dc4 12.f5 ef5 13.Bc4=) 12.b5 c5 13.Nf3 d4 (13...Nbd7!?=) 14.Na4+/– (worse is 14.ed4 cd4 15.Nd4 Bc5+=) 14...d3 15.Nb6?? (15.f5 Bf5 16.Nb6–+) 15...Qd8–+ 16.Na8 de2 17.Qe2 Bd3 18.Qf2 Ne4 19.Qe1 Nd7 20.Ne5 Ne5 21.Be5 Qa8 22.Rf3 Qd8 (22...Bc4 23.a4–+) 23.Qc1 (23.Rc1 Qd7–+) 23...Be2 24.Rh3 Qd3 (24...Nd2?! 25.Qc2 Bc4 26.Bc3–/+) 25.Bc7 (25.Qb2 Bg4 (25...Nd2?! 26.e4 Nf3 27.Rf3 Bf3 28.gf3–/+; worse is 25...Qd2 26.Qd2 Nd2 27.Ra2–+) 26.Bg7 Bh3 27.Bf8 Bf8 28.gh3 Nd2–+ (worse is 28...Qc4 29.Qc1 Qe2 30.Qd1 Qf2 31.Kh1–+; 28...Qd2?! 29.Qd2 Nd2 30.Rc1–/+)) 25...Bg4 (25...Qd2?! 26.Qd2 Nd2 27.Ra2 Nc4 28.Re2 Na3 29.Ba5–/+) 26.Rg3 (26.Ba5 Ra8 27.Bc3 Qc4–+) 26...f5 (better is 26...Ng3!? 27.hg3 Bf6 28.Be5 Be5 29.fe5–+) 27.Be5 (27.Rg4 fg4 28.Ba5–+) 27...Bh4 28.Rg4 Bf2 29.Kh1 fg4 30.a4 (30.h3 gh3 31.Qb1 Qb1 32.Rb1 Nd2–+) 30...Ng3! 31.hg3 Rf5 0–1. Thomsen,Jesper – Palacios,Eduardo, DEN–PER, 2011.

8.cd5 cd5 9.Nc3 a5 10.b5 Ne4 11.Rc1 (11.0-0 Nd7=) 11...Nd7 12.Na4 (12.0-0 Nd6=) 12...Rc8 13.Rc8 Qc8 14.0-0 Nd6 15.Qa1 (15.Nd4 Bg6 16.d3 Qa8=) 15...Qc2+= 16.Nc3 Nc4 17.Bc4 (17.Nd5 ed5 18.Bg7 Qa4=) 17...dc4 18.Ne2 Bg4 19.Bg7 Ra8 (19...Rd8 20.Bb2 Bd6=) 20.Bh8 (20.Bb2!? Bd6 21.h3 Bf3 22.Nd4=) 20...f6+= 21.Qd4 Bf3 (21...Ne5!? 22.Ne5 Be2=) 22.Qd7= (22.gf3? Ne5 (22...Kh8?! 23.Qd7 Ba3 24.Qb7 Rg8 25.Ng3+=) 23.Qb6 Kh8 24.Qb7 Rg8 25.Ng3 Ba3–+) 22...Be2 (worse is 22...Kh8 23.Nd4 (23.gf3?! Ba3 24.Qb7 Rg8 25.Ng3 Qd2=) 23...Qg6 24.Nf3+–) 23.Qe7 Qg6 24.Qf6 (worse is 24.Qb7 Re8 25.Rc1 Kh8–/+) 24...Qf6 (24...Bf1 25.Kf1 Qd3 26.Ke1 Qb1 27.Ke2 Qd3 28.Ke1 Qb1 29.Ke2 Qd3 30.Ke1=) 25.Bf6 Bf1 26.Kf1 a4 27.Bc3 Kf7 (27...Rd8 28.e4=) 28.e4 (28.f4 Rd8=) 28...Rc8 29.Bd4 (29.Bb4 Rd8=) 29...Rd8 30.Bc3 Rd6 31.Ba5 Rd3 32.Bc3 Ke7 (32...h6 33.Ke2=) 33.h4 (33.Ke2 Kd6+=) 33...Kd6+= 34.g4 (34.f4 Kc5+=) 34...Kc5 35.h5 Rf3 (35...Kb5!? 36.g5 Rh3=) 36.Kg2= Rf4 (36...Rf7 37.Kg3=) 37.f3 (37.Kg3 e5+= (37...Re4? 38.g5 Kd6 39.g6 hg6 40.h6+–)) 37...Rf7 (37...Kb5 38.Kg3 Rf8 39.f4=) 38.g5+= Kb5 39.h6 Rd7 40.f4 Rf7 41.Kf3 Kc6 (41...Rd7 42.f5 ef5 43.ef5+–) 42.Kg4 White prepares the advance f5 (better is 42.Bg7!? Rd7 43.g6 hg6+–) 42...Rd7 43.f5 ef5 44.ef5 (44.Kf5?! Rd6+=) 44...b5 (44...Rd6 45.g6! hg6 46.h7 gf5 47.Kf5+–) 45.g6 (45.g6 Kd6 46.g7+–) 1–0. Bendig,Frank – Markus,Roland, TKM/SF/02, 2001.

7.Be2 dc4

8.Bc4 b5 9.Be2 =+.

8.Bc4 Bd3 9.Qb3 Bc4 10.Qc4 0-0 11.0-0 Nbd7 12.d4 a5 13.Qb3 (13.b5!?=) 13...ab4 14.ab4 Qb6 15.Ra8 Ra8 16.Bc3 (16.Ba3 Nd5=+) 16...Qb4?? (better 16...Nd5-/+) 17.Bb4+- (17.Bb4 Bd8 18.Bc5+-; 17.Qb4?! Bb4 18.Bb4 Nd5+-) 1-0. sezwho (1975) - kabalist (2120), Rated Bullet game, lichess.org, 2014.

7.Be2 Nbd7

8.0-0 0-0 9.c5 b6 10.d4 Bb1 (10...a5!?=) 11.Rb1+= bc5 12.dc5 a5 13.Nd4 Qc7 14.Qb3 (better is 14.b5!?=) 14...ab4–/+ 15.ab4 Ra7 (15...Rfb8!?+=) 16.Rfc1 Rfa8 17.Qc3 (17.b5 A) 17...Bc5? 18.bc6 (18.Nc6?! Ra2+=) 18...Ne4 19.cd7+–; B) 17...Nc5 18.Qc2 Ra2 19.Nc6 Bd6=) 17...Ra2 18.f3 Qb7 19.Ra1 Ra1 20.Ra1 Ra1 21.Ba1 Qa8 22.Qb2 h6 23.Qc3 Qb7 24.Bb2 Nb8 25.Qa3 Nfd7 26.Bc3 Bf6 27.Kf2 Bd4 28.ed4 Nf8 29.Qa5 Nbd7 30.b5 cb5 31.Bb5 Nf6?? 32.c6+– Qc8 33.Qb6 Ng6?? 34.Ba5 Kh7 35.c7 Nd7?? 36.Bd7 Qd7 37.Qb8 Qa4 38.c8Q Qa2 39.Kg3 (39.Kg3 Ne7 40.Qh8 Kg6 41.Kh3+–) 1–0. Fournier,Frederic (1985) – Bertita25 (1915), Echecs21 (2/0), 2003.

8.0-0 0-0 9.d3 Qc7 10.Nh4 Bg6 11.f4 h6 (11...a5 12.Ng6 fg6 13.Bg4=) 12.Ng6+= fg6 13.Nd2 b6 14.Nf3 Rad8 (14...c5 15.Ne5 Kh7 16.Qd2+–) 15.Nd4+– Qd6 16.Kh1 (16.Qa4 Rc8+–) 16...Rb8 (16...e5 17.c5 bc5 18.bc5 Nc5 19.fe5 Qe5 20.Nc6 Qb2 21.Rb1 Qa3 22.Ra1=) 17.Ra2 (17.b5!? cb5 18.Nb5+–) 17...dc4+= 18.dc4 Rfe8 (18...e5 19.Nf3 ef4 20.ef4+–) 19.Bg4 (19.Qb3 Rbc8+–) 19...Bf8? (19...e5 20.fe5 Ne5 21.Bh3+=) 20.b5 (20.Bf3!? Rbc8 21.Qb3+–) 20...cb5+– 21.Nb5 (21.cb5 Rbc8+–) 21...Qc5+= 22.Qe2?? (better 22.Be2 a6 23.Bd4+=) 22...Ng4–+ 23.Qg4 (23.Bd4 Qh5 24.h3–+) 23...Qc4 24.Raa1 (24.Rfa1 Qb5 25.Qg6 e5–+) 24...Qb5 25.Rab1 Qf5 26.Qd1 Red8 27.a4 (27.Qf3 Nc5–+) 27...Nc5 28.Qe2 (28.Bd4 Ne4 29.Qe2 Rbc8–+) 28...Na4 29.Qa6 (29.Be5 Ra8–+) 29...Nb2 30.Rb2 Qe4 (30...Qd3 31.Ra2–+) 31.Qa7 Qe3 32.Qc7 (32.Qa2 Rd4 33.Re2 Rf4–+) 32...Rdc8 33.Qe5 Qe5 34.fe5 Rc5 35.h4 (35.Re1 b5–+) 35...Re5 36.Kh2 Bd6 37.Kh3 Re3 38.Rf3 Rf3 39.gf3 Kf7 (39...b5 40.Rd2 Be7 41.Rd3–+) 40.Rd2 (40.Rb5 Bf4–+) 40...Bf4 41.Rb2 b5 42.Kg2 Kf6 43.Rb4 Kf5 0–1. Mersie,Monique – Maggen,Charlotte, Belgian women's championship, 1999.

8.0-0 0-0 9.h3 h6 (9...dc4 10.Bc4 a5 11.b5+=) 10.d4 (10.cd5 Nd5 11.Nc3 a5=) 10...Rc8 (10...a5!?+=) 11.Nbd2= Bd6 (11...Qc7 12.Qb3=) 12.c5 Bb8 (12...Bc7 13.Qa4=) 13.Rc1 (13.Nh4 Bh7=) 13...Qc7 (13...Qe7 14.Nh4=) 14.a4 (14.b5 cb5 15.Bb5 Ne4=) 14...Ne4 15.g4? (better is 15.Ne5=) 15...Nd2–+ 16.Qd2 Be4 17.Kg2?? (better is 17.Rfd1–+) 17...Qh2 0–1. Dos Anjos,Diovana Ferreira – Policarpo,Nicoli, FENAJ – Championship Brasileiro Infanto, 2016.

8.cd5 ed5 9.d3 0-0 10.Nbd2 Re8 11.0-0 a6 12.Nb3 Bd6 13.Nbd4 Bg6 14.h3 (14.Nh4 Nf8=) 14...Qc7 (14...a5 15.ba5 Qa5 16.Nh4=) 15.Qd2 Ne5 16.Nh4 Qd8 17.f4 Ned7 18.Ndf3 (18.Ng6 fg6 19.g4 Nf8+=) 18...h6 (18...Qe7!? 19.Ng6 fg6=) 19.Ng6+= fg6 20.Nh2 (20.Bd4 a5=) 20...Qe7 21.Rf3 c5 22.bc5 Bc5 23.Nf1 Rac8 24.Bd1 Ba7 25.Kh1 Red8 26.Qb4+= Bc5 27.Qb7 Qe6 28.Qb3 Be7 29.Bd4 Nc5 30.Bc5 Rc5 31.e4 Rb5 32.Qa2 Qb6 33.Qe2 de4 34.de4+= Qd4 35.Rc1 Bc5 36.Ne3 Rb2? 37.Qc4+– Qc4 38.Nc4 Rbb8 39.Ne5 Rbc8 40.Bb3 Kh7 41.Nf7 Ba3 42.Ra1 Bb2 43.Ra6 Rc1 44.Kh2 Rb8 45.Ra4 Re1 46.e5 Ne4 47.Bc4 Bc1 48.h4 Nd2 49.Rf2 Ne4= 50.Rf3 Be3 51.Bf1?? Nd2–+ 52.Bd3 Nf3 53.gf3 Rb2 54.Kh3 Rh1 55.Kg3 Rg1 56.Kh3 Rbg2?? 57.Ra8 Rg3 58.Kh2 R1g2 59.Kh1 ½–½. De Visser,A (1880) – Van de Groep,W (1970), HSG Open, Hilversum NED, 2010.

7.Be2 h6

8.0-0 0-0 9.d3 Prevents intrusion on e4 9...dc4 10.dc4 a5 11.b5 cb5 12.cb5 Nbd7 13.Nbd2 Nc5 (13...Qb8 14.Bd4=) 14.Nc4 a4 15.Qd8 Rfd8 (15...Rad8 16.Rac1=) 16.Rad1 (16.Nb6 Rab8=) 16...Bc2 17.Rd8 Rd8 18.Nd4 Bd3 19.Bd3 Nd3 20.Rd1 (20.Ba1!?=) 20...Nb2–/+ 21.Nb2 Ba3 22.Na4 e5 23.Ra1 ed4 24.Ra3 de3 25.fe3 Ra8 26.Ra2 Nd5 Black threatens to win material: Nd5xe3 27.Kf2 Nc7 28.b6 Nd5 29.Rd2= White threatens to win material: Rd2xd5 29...Ra4 30.Rd5 A rook endgame occured 30...Rb4 Black threatens to win material: Rb4xb6 31.Rd8 Kh7 32.Rd6 f6 33.Kf3 Kg8 34.Rd8 Kh7 35.Rd6 Kg8 ½–½. Cernik,Lukas (2105) – Stross,Frantisek (2190), Klatovy op–A, 2002.

8.0-0 dc4 9.Bc4 b5 10.Be2 =.

8.Nc3 0-0 9.0-0 (9.cd5 cd5 10.0-0 a5=) 9...Nbd7 (9...dc4 10.Bc4 b5 11.Be2=) 10.Qb3 (10.cd5 Nd5 11.Nd5 ed5=) 10...a6 (10...dc4 11.Qc4 e5 12.Ne5 Ne5 13.Qf4 Qd2 14.Qe5 Qb2 15.Qe7 Qc3 16.Qb7–+) 11.d3 Bh7 (11...a5 12.cd5 cd5 13.Nd4=) 12.Rfd1 (12.cd5 ed5 13.Qc2 Re8=) 12...b5 (12...a5 13.cd5 cd5 14.Rdc1=) 13.Rac1 (13.Rd2 Bd3 14.Bd3 bc4 15.Bc4 dc4 16.Qc4 Ne5=) 13...Rc8 14.a4 (14.Rd2 Bd6+=) 14...bc4= 15.dc4 dc4 (15...Qb6 16.Ba3=) 16.Bc4+= Rb8 (16...a5 17.Ne5 ab4 18.Nd7 Nd7 19.Ne2=+) 17.b5 (17.Na2!?+/–) 17...Qb6 (17...Qc7 18.Be2=) 18.Nd4 (18.Ba3 Nc5 19.Bc5 Bc5=) 18...cb5 19.ab5 Nc5 20.Qa2 ab5 21.Ncb5 Ra8 22.Ba3 Rfb8 23.Qe2 Bf8 (23...Bg6 24.Ra1=) 24.Ra1 Nfd7 25.Bb4 (25.Nf3 Qb7=) 25...Ne5 26.Ba2 (26.Bc5 Bc5 27.Ra8 Ra8=) 26...Bd3=+ 27.Bc5? (27.Qh5 Ned7 28.Bc5 Qc5 29.Qc5 Nc5–/+ (29...Bc5?! 30.Rd3 Bd4 31.Rd4 Rb5 32.h4=)) 27...Be2 (better is 27...Qb5 28.Qd2 Qc5–+) 28.Bb6=+ Rb6 29.Ne2 Rb5 30.Nd4 Rba5 31.Rd2=+ Bb4 32.Rc2 Be7 33.f4 Ng6 34.Nc6 Ra3 35.e4 Bd8 36.Nd8= Rd8 37.Rf1 Rda8 38.Bc4 Kf8 39.g3 Ke7 40.Rfc1+= R8a7 41.Bf1 Ra1 42.Kg2 Rc1= 43.Rc1 f6 44.Kh3 e5 45.Kg4 Kd6 46.Rd1= Ke7 47.Bc4 ef4 48.gf4 h5 49.Kf3 Ra3 50.Bd3 Nf8 51.f5 g5 52.fg6 Ng6 53.h3 Ke6 54.Ke3 Ne5 55.Kd4 Nf3=+ 56.Ke3 Ne5 57.Kd4 h4 58.Ke3 Ng6 59.Rg1 Ne5 60.Rd1 ½–½. Bartle,Georg – Lorenz,Michael, Baden–ch HT1, 2004.

8.Nc3 dc4 9.Bc4 b5 10.Be2 =.

8.Nc3 Nbd7 9.d3 Bh7 10.0-0 0-0 11.b5 Re8 12.d4 a6 13.a4 Qb8 14.Qb3 Ne4 15.Ne4 de4 16.Nd2 c5 17.Rfe1 Kh8 18.g3 (18.a5 Bd6 19.h3 Rd8+=) 18...f5 (18...Qd6 19.Qc2=) 19.Bf1 Bf6 20.Bg2 Qd6 21.Qa3 Qc7 22.Qa2 a5 (22...e5 23.d5+=) 23.Rac1 Rad8 24.Nb3 Bg8 25.Bf1 Kh7 26.Bc3 b6 27.dc5 (27.Qc2 Rf8+=) 27...Nc5 (27...Bc3!? 28.Rc3 Nc5+=) 28.Bf6= gf6 29.Nd4 Bf7 30.Be2 Rg8 31.Red1 Bg6 32.Qa3 e5 33.Nb3 Nd3 (33...Rd1 34.Rd1 Nb3 35.Qb3=) 34.Bd3+= Rd3 35.Rd3 ed3 36.c5 Qe7 37.Qb2 bc5 38.Rc5 (38.Qd2!? e4 39.Qa5+=) 38...Rd8= 39.Qc3 d2 40.Nd2 Rd2 41.Rc7 Rd1 42.Kg2 Rd7 43.b6 f4 44.f3 (44.Qa5!? fe3 45.fe3 Be4 46.Kf2+=) 44...fe3–/+ 45.Qc6? (better is 45.Qa5!? Rc7 46.bc7–/+) 45...Bf5–+ 46.Rd7 Bd7 (46...Qd7?? 47.Qd7 Bd7 48.b7+–) 47.Qc2? (better is 47.Qd5 Be6 48.Qc6–+) 47...Kg7 48.b7 (48.Qc3–+) 48...Qb4 49.Qe2 Qb7 50.Qe3 Qb2 51.Kf1 Qb1 52.Kf2 Qc2 53.Ke1 Qa4 (53...Qh2 54.Qa7 Qg3 55.Ke2 Qg2 56.Ke1–+) 54.Qa7 Qb4 55.Kf1 Qb5 56.Kf2 Qd5 57.Ke1 a4 58.h4 Qd4 (58...Qd4 59.Qa5 Qe3 60.Kd1 a3–+) 0–1. Ivanets,Vladimir (2265) – Schumacher,Helmut (2065), EU–ch Seniors, 2006.

8.d3 0-0 9.Nbd2 Nbd7 10.c5 Qc7 11.d4 Ne4 (11...a5 12.0-0+=) 12.Ne5 (12.Ne4 de4 13.Nd2 Nf6=) 12...Ne5 13.de5 b6 14.Ne4 Be4 15.f3 Bg6 16.cb6 Qb6 (16...ab6 17.0-0+=) 17.Kf2 (17.Bd4 c5 18.bc5 Bc5+=) 17...c5 18.Qa4 (better is 18.Rc1!?+=) 18...a5–+ 19.Qd7 (19.b5 Rfb8–+) 19...Ra7 20.ba5?? (better is 20.Qb5 Qc7 21.e4–+) 20...Qb8 (20...Rd7?! 21.ab6 Rb8 22.a4 Rb6 23.Bb5+=) 21.Qb5 Rb7 22.a4 c4 23.Qb7 (23.a6 Rb5 24.ab5 Qb5–+) 23...Qb7 24.Bd4 Ra8 25.e4 de4 26.Bc4 Qb4 0–1. Tagirov,Kajum K (1920) – Zatokovenko,I (2250), Memorial Siamidi, 2009.

8.Nd4 Bg6 =.

8.cd5 cd5 9.0-0 0-0 =.

7.h3 0-0

8.Nh4 Be4 9.d3 dc4 10.d4 Nd5 11.Nf3 b5 12.Nc3 Nc3 (12...Bf5 13.Nd2–+) 13.Bc3–/+ Nd7 14.Nd2 Nf6 15.f3 (better is 15.Ne4 Ne4 16.Qc2 Nc3 17.Qc3–+) 15...Bg6 16.e4 (16.Qc1 Nd5 17.Kf2 Bh4 18.g3 Qg5–+) 16...Nd5 17.ed5 Bh4 18.Ke2 ed5 (18...cd5?! 19.f4 Bg3 20.Nf3–+; 18...Qd5?! 19.Qc1–+) 19.f4 (19.Nc4 dc4 20.Qc1–+) 19...Qe7 20.Kf3 Be4 21.Ne4 (21.Ke3 Bg2 22.Ne4 Qe4 23.Kd2 Bh1 24.Kc1–+) 21...Qe4 (21...de4?! 22.Ke3=+) 22.Kg4 f5 (22...Bf2 23.h4 Qg6 24.Kf3 Qg3 25.Ke2 Qe3) 23.Kh4–+ Qf4 24.g4 Qf2 (24...Rf6 25.Bc4 Rh6) 25.Kh5 g6 26.Kg5 Kg7 (27.Qf3 h6 28.Kf4 g5 29.Ke5 Rf6 30.Qf5 Qf5 31.gf5 Re8#; 26...h6 27.Kg6 Qh4 28.gf5 Rf6) 0–1. Maksimov,Igor – Kodinets,Konstantin (2405), RUS–Cup02 Moscow, 1998.

8.Nh4 Be4 9.Rg1 (9.c5 Nfd7 10.Nf3 b6=+) 9...Nfd7 (9...dc4 10.Bc4 a5 11.d3–/+) 10.Nf3=+ Bf6 (10...dc4 11.Bc4 a5 12.ba5 Qa5 13.Nc3=+) 11.d4 c5 (11...a5 12.Nc3=) 12.Nc3 (12.bc5 Nc5 13.Bc3 Nca6=) 12...cd4 (12...Bf3 13.Qf3 cd4 14.ed4–/+) 13.Ne4 de4 14.Nd4 b6 (14...Nc6 15.Nc6 bc6 16.Bf6 Qf6 17.Qd4=) 15.g4+= Bh4 (better 15...Ne5 16.Qc2 Nf3 17.Nf3 Bb2+= (17...ef3? 18.Rd1 Qe7 19.Bf6 Qf6 20.Bd3+–)) 16.b5?? (better 16.Qc2 Ne5 17.Qe4+–) 16...Qf6 (16...Qg5 17.Nc2=+) 17.Rb1?? (better 17.Qd2 Ne5 18.g5=) 17…Qf2 0–1. zomboeb (1630) – Susruth (1685), lichess.org, 2021.

7.Nh4 Bg4

8.Be2 Be2 9.Qe2 0-0 10.h3 (10.Nf3 dc4 11.Qc4 b5+=) 10...Nbd7 11.d3 Qc7 12.Nd2 a5 13.c5 (13.ba5 Ra5 14.cd5 Nd5–/+) 13...b5 (better is 13...ab4!? 14.ab4 b6–/+) 14.0-0= Ne5 15.f4 Ned7 16.Nhf3 Nh5 17.Nh2 (17.Nd4 Nhf6=) 17...Bf6 18.Bf6 (worse is 18.Qh5 Bb2 19.Ra2 Bc3–+) 18...Nhf6 19.g4 (19.Nhf3 ab4 20.ab4 Rfb8=) 19...h6 (19...d4 20.ed4 ab4 21.ab4 Ra1 22.Ra1 Qf4 23.Ne4–/+) 20.h4 (20.Nhf3!?=) 20...ab4 21.ab4 Ra1 22.Ra1 Kh8 (better is 22...d4!? 23.ed4 Nd5–/+) 23.g5= Nh7 24.Ndf3 Rg8 25.Kf2 Qd8 (better is 25...e5!?=) 26.Ng4+/– hg5 27.hg5 (worse is 27.fg5 Qc7+=) 27...g6 (27...Qe8 28.Nfe5 Ne5 29.Ne5+–) 28.Rh1 (better is 28.Qb2 Rg7 29.Nge5 Ne5 30.Ne5+–) 28...f6? (better is 28...Rg7+–) 29.gf6 Ndf6 30.Qb2 d4 31.Nf6 Qf6 32.Qd4 Qg7 (32...Qd4 33.Nd4 Rc8+–) 33.Ng5 Qd4 (33...e5 34.Qe5 Re8 35.Qe8 Qf8 36.Qf8) 34.Rh7 1–0. Vorobiov,Nikolai (2115) – Drogovoz,Maria, Khanty Mansiysk Governor Cup, 2007. (=1.a3 c6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.c4 Nf6 6.Nf3 Be7)

8.Be2 Be2 9.Qe2 Nbd7 10.0-0 0-0 11.f4 (11.Nf3 dc4 12.Qc4 a5=+) 11...Ne4 (11...c5 12.b5=+) 12.Nf3= f5 (12...dc4!? 13.Qc4 Nd6=) 13.d3 (13.Nd4 Rf6 14.c5 e5 15.fe5 Ne5+/-) 13...Nef6 (13...Nd6 14.Nd4 Rf6 15.c5+=) 14.Nbd2 (14.Ng5 Re8 15.Ne6 Qc8 16.cd5 Nb6+/-) 14...a5 (14...c5 15.bc5 Bc5 16.Rfb1+=) 15.b5 (better 15.Ng5!? Qb6 16.Ne6+/-) 15...cb5 16.cb5 Nc5 17.a4 b6 18.Nd4 Rc8 19.Nc6 Qd7 20.Nf3 Bd6 21.Nfe5 Be5 (better 21...Qc7!?+=) 22.fe5+/- Ne8 (22...Ng4 23.Ba3 d4 24.ed4 Rc6 25.dc5 (25.bc6?! Qd4 26.Kh1 Nd3=+) 25...Qd4 26.Kh1 Rc5 27.Bc5 bc5 28.Rac1+/-) 23.Ba3+- Rc6 (23...Rf7 24.Bc5 bc5 25.Na5+-) 24.bc6 Qc6 25.d4 Ne4 (25...Na4 26.Bf8 Kf8+-) 26.Bf8 Kf8 27.Rfc1 Qd7 28.Qb2 Qf7 (28...Kf7 29.Qb6 Nd2 30.Qb5+-) 29.Qb6 Qh5 (29...Nd2 30.Qa5 Nc4 31.Qc5 Qe7 32.a5 Qc5 33.dc5+-) 30.Qe6 1-0. black_bishop_88 (2570) - Keepserene (2480), lichess.org, 2020.

8.f3 Bh5 9.g3 0-0 10.Bd3 (10.c5 b6–/+) 10...Nfd7 (10...dc4 11.Bc4 b5 12.Be2–/+) 11.Ng2 (11.cd5 Bh4 12.dc6 Nc6 13.gh4 Nde5–/+) 11...Bf6–/+ 12.Nc3 (better is 12.Bc3!?–/+) 12...Ne5–+ 13.Be2 Bf3! (< 13...Nc4 14.Bc4 dc4 15.Nf4–/+; 13...dc4?! 14.Nf4 Bg6 15.e4–/+) 14.0-0 (14.Bf3 Nd3) 14...Bg2 (< 14...Nc4 15.Rf3 Nb2 16.Qb3–/+) 15.Kg2 Nc4 16.Bc4 dc4 17.Qg4 Qd2 18.Rf2 Qd8 19.Rd1 Qe7 20.Rf6? (20.Qc4 Nd7 21.Rd7 Qd7 22.Rf6 Qd2 23.Rf2 Qe3 24.Re2–/+) 20...Qf6 21.Rf1 (21.Qc4 Qg6–+) 21...Qh6 22.Ne4 (22.Nd1 b5 23.Rf6 g6–+) 22...f5 23.Qf3 Rd8 24.Rf2 (24.Bd4 Qg6 25.Nc5 b6–+) 24...a5 25.Be5 (25.Bd4 ab4 26.ab4 Na6–+) 25...Nd7 (25...ab4 26.ab4 Nd7 27.Bc7–+) 26.Bf4 (26.Bc7 ab4 (26...fe4?! 27.Qf7 Kh8 28.Bd8 Rd8 29.Qd7–/+) 27.Bd8 Rd8 (27...fe4 28.Qf7 Kh8 29.Qe8 Nf8 30.Rf8) 28.ab4 Ne5–+ (28...fe4?! 29.Qf7 Kh8 30.Qd7–+)) 26...fe4 27.Qe4 Qg6 28.Qc4 ab4 29.ab4 Nb6 30.Qc5 Qe4 31.Kh3 Nd5 32.b5 (32.Bg5 Rd7 33.Qd4 Qd4 34.ed4 Nb4–+) 32...Qf5 33.Kg2 0–1. BigSky (2705) – duckbreath (2555), ICC, 1998.

6.a3 h6

7.Nc3 dc4 8.Bc4 b5 9.Be2 =.

7.d3 Bd6 8.Nbd2 Nbd7 9.Be2 0-0 10.h3 a5 (10...c5 11.0-0=+) 11.b5 (11.c5 Bc7=) 11...a4 (11...Nc5 12.bc6 Bd3 13.cb7=+) 12.g4 (12.Nd4!?=) 12...Bh7=+ 13.g5 (13.bc6 bc6 14.0-0 Qe7-/+) 13...hg5-/+ 14.Ng5 (14.bc6 bc6 15.Qc2-/+) 14...e5 (better 14...Bf5!?-/+) 15.Rg1 Qe7 16.cd5 (16.Nh7 Nh7 17.bc6 bc6=+) 16...cd5 (16...Nd5?! 17.Nh7 Kh7 18.Bf3+=) 17.Nf1 (17.Ndf3=+) 17...Rfe8 (better 17...Bg6!?-/+) 18.Ng3= Bg6 (18...g6 19.h4=) 19.h4 Nh7 20.Nf3 (20.N5e4 de4 21.h5 ed3 22.hg6 de2 23.gh7 Kh8 24.Qe2 g6= (24...Kh7?? 25.Qh5 Kg8 26.Nf5+-)) 20...Ndf6 (20...Nhf6 21.Ng5 Nh7 22.N5e4+=) 21.Nd2+= Qe6 22.h5 Bf5 23.e4 (23.h6!? Bg6 24.hg7 Kg7 25.Nf3+=) 23...de4 (23...Bh3 24.h6 g6 25.ed5 Nd5 26.Nc4=+) 24.de4 Bg4?? (better 24...Bh3 25.h6 Bc5=) 25.f3?? (better 25.Bg4 Ng4 26.Nf5+-) 25...Bh5 (25...Bc5!? 26.Rh1 Bh3-/+) 26.Bc4= Qh3 (26...Qd7!? 27.Nf5 Bf8=) 27.Nf5+= Bf8 (27...Bc5!? 28.Rg7 Kh8=) 28.Qe2+/- Rac8 29.0-0-0 Bg6?? (29...Nd5 30.Nh6 Kh8 31.Rh1+/- (31.ed5?! gh6 32.Kb1 Nf6=)) 30.Rh1 (better 30.Rg6 Nd5 31.Nh6 Qh6 32.Rh6 Nf4+-) 30...Rc4?? (better 30...Bf5 31.Rh3 Bh3+/-) 31.Nc4+- (worse 31.Qc4 Bf5 32.Rh3 Bh3 33.Qa4 Nd7+-) 31...Bf5 32.Rh3 (32.ef5?! Qf5 33.Qd3 e4 34.fe4 Ne4=) 32...Bh3 33.Ne5 Rc8 (33...Be6 34.Kb1+-) 34.Kb1 Be6 35.f4 (35.Qd2 Ne8+-) 35...Bb3 36.Rg1 Bc2 37.Qc2 (better 37.Ka1 Be4 38.Ng4 Be7+-) 37...Rc2 38.Kc2 Ne4 39.Rd1 (39.Nd7 f6+-) 39...f6 (39...Nd6 40.b6 f6 41.Ng6+-) 40.Ng6 Bc5 41.Rd7 (41.Rd7 b6 42.Bd4+-) 1-0. Shuvalov,Evgenij (2180) - Pacheco Lugo,Alejandro Jose (2125), Titled Tuesday intern op, 2021.

7.d4 Be7 8.Bd3 Bd3 (8...dc4 9.Bc4 b5 10.Bb3=) 9.Qd3 Nbd7 (9...dc4 10.Qc4 0-0 11.0-0=) 10.c5 (10.0-0 dc4 11.Qc4 a5=) 10...0-0 (10...a5 11.b5=) 11.Nbd2 b5 (11...b6 12.0-0=) 12.Bc3 (12.a4 ba4 13.Ra4 a5=) 12...Re8 (12...a5 13.ba5 e5 14.Ne5 Ne5 15.de5=) 13.0-0 (13.a4 a6=) 13...Nh7 (13...Qc7 14.a4 Rab8 15.Rfd1=) 14.a4+= a6 15.Ne5 Qc7 (better 15...Ne5!? 16.de5 Qb8+=) 16.Nf7!+– Kf7 (16...Nhf8 17.Ne5+–) 17.Qh7+– Nf6 (17...Rf8 18.Ra2+–) 18.Qd3 g6 (18...Kg8 19.Qg6+–) 19.Nf3 Nd7 20.e4 Bf6 (20...Kg7 21.Bd2+–) 21.e5 Be7 22.Bd2 Kg7 23.Qe3 g5 (23...Rh8+–) 24.h4! Qd8 (24...gh4 25.Qh6 Double attack (25.Qh6 Pinning; 25.Qh6 Deflection; 25.Qh6 Decoy)) 25.ab5 ab5 26.hg5 hg5 (26...h5 27.Ra5+–) 27.Ra8 Qa8 28.Ng5 Nf8 29.Qg3 Bg5 (29...Kh8 30.Nf7 Kh7+–) 30.Bg5 Ng6 31.Qh3 (31.Qh3 Rh8 32.Qe6+–) 1–0. Adlai – Faldas, corr, 2018.

7.Nd4 Bg6 8.Nc3 Be7 9.Qb3 0-0 10.Be2 Nbd7 11.f4 dc4 12.Bc4 Nb6 13.0-0 Nc4 14.Qc4 Qd7 15.Nf3? Bd3–+ 16.Qb3 Bf1 17.Rf1 Qd3 18.Rf2 Nd7 19.Ne1 Qd6 20.d4 Bh4 21.g3 Bd8 22.Qc2 Nf6 23.Nf3 Bb6 24.Ne5 Qe7 25.h4 Nd5 26.Nd1 Rfd8 27.e4 Nc7 28.f5 Rd4 29.Ne3 Rdd8 30.fe6 Qe6 31.Rf7 Be3 32.Kf1 Rf8 0–1. Dillimann,Hans Peter (1715) – Endisch,Peter (1940), Afro op Augsburg, 1998.

7.cd5 Nd5 8.Nc3 Nf6 =.

7.Be2 dc4 8.Bc4 b5 9.Be2 =.

7.Be2 Bd6 8.d4 (8.c5 Be7=) 8...0-0 9.Nc3 Nbd7 10.0-0 Re8 11.b5 Rc8 12.a4 (12.c5 Bb8=) 12...dc4=+ (Black gets in control) 13.Bc4 cb5 14.Nb5 (Black gets strong play along the open c–file) 14...Bb8 (< 14...Rc4 15.Nd6 Nb6 16.Nc4 Nc4 17.Qe2+–) 15.Qb3 Nb6 16.Rfc1 Nc4 17.Rc4 Rc4 18.Qc4 a6 19.Nc3 Re7 20.Ba3 Rc7 21.Qb4 Qc8 22.Ne2 Rc4 23.Rc1 Bc2 24.Qb2 Ba4 25.Nc3 Be8 26.Bc5 Nd5 27.Nd5 Rc1 28.Qc1 ed5 29.Qb2 Qc6 30.Nd2 Bc7 31.f3 (31.Nf3 Bd7–/+) 31…f5 (32.Qb3 b6–+) 0–1. Daehne,Armin – Betzelt,Thomas, BdF, 1987.

7.Be2 Nbd7 8.Nc3 Be7 9.0-0 0-0 10.d3 a5 11.c5 Qc7 12.Nd4 Bg6 13.Nc2 ab4 14.ab4 e5 15.Qd2 Nh7 (15...b6 16.cb6 Qb6 17.Na4=+) 16.Ra8 Ra8 17.Ra1 Qb8 18.Ra8 Qa8 19.d4 ed4 (19...b6 20.de5 bc5 21.bc5 Bc5 22.Nd4=) 20.Nd4+= Bf6 21.Qc1 (21.f4 Bd4 22.Qd4 Nhf6+=) 21...Nhf8 22.Qa1 (22.Qd1 Ne6=) 22...Qa1= 23.Ba1 Ne6 24.Na4 Nd4 25.Bd4 Bd4 26.ed4 Nf6 (26...Nf8 27.b5=) 27.b5+= Ne8? (better 27...Kf8!?+=) 28.bc6+– bc6 29.Nb6 Nc7 30.Nc8 Kf8 31.Na7 Ke7 32.Nc6 Ke6 33.Ne5 Bc2 34.f4 (34.Kf1 f6 35.Bg4 f5+–) 34...f6 (34...Kf5 35.Bf3 (35.Nf7?! Kf4 36.Nd6 Ke3=) 35...f6 36.Nf7 Kf4 37.Kf2+–) 35.Nd3 (better 35.Ng4!?+–) 35…Nb5+= (35...Nb5 36.f5 Ke7+=). mrchessplayer – hobgoblin, net–chess.com, 2020.

7.g3 dc4 8.Bc4 b5 9.Be2 =+.

7.g3 Bd6 8.c5 Bc7 9.Nc3 e5 10.Bg2 Qd7 (10...Bd3 11.Ne2 Nbd7 12.Nc1=+) 11.0-0 Bh3 12.Re1 Bg2 13.Kg2 e4 14.Nd4 h5 15.h4 Na6 16.d3 Be5 (16...0-0-0 17.Qa4 Be5 18.de4 de4 19.b5 Nc5 20.bc6 (< 20.Qa7 Bd4 21.bc6 Qc6 22.ed4 Nd3=+) 20...bc6 21.Qc6 Qc6 22.Nc6+/–) 17.de4 (17.f4 ef3 18.Nf3 Bc7=) 17...de4 (17...Ne4 18.f4 Nc3 19.Bc3 Bc7+=) 18.Nc2 (18.f4!? ef3 19.Nf3+=) 18...Qf5 (18...0-0-0 19.Qd7 Rd7 20.Rad1=+) 19.Qe2 (19.Nd4 Bd4 20.ed4=) 19...g5 (19...0-0-0 20.Nd4 Bd4 21.ed4=) 20.hg5 (better is 20.Nd4 Bd4 21.ed4+/–) 20...Qg5–/+ 21.Rh1 h4 22.Kf1 0-0-0 23.Ne4? (23.gh4 Rh4 24.Rh4 Qh4 25.Ke1–+) 23...Ne4–+ 24.Rh4 (24.Be5 Qe5 25.Rh4 Rh4 26.gh4 Qf5–+) 24...Bb2 25.f4 (25.Re4 Ba1 26.Qg4 Qg4 27.Rg4–+) 25…Ng3 (26.Ke1 Bc3 27.Kf2 Qh4 28.Kg1 Qh1 29.Kf2 Ne4) 0–1. wlittle (2185) – bienopia (2125), net–chess.com, 2004.

7.Nc3 Nbd7

8.Qb3 Be7 (8...a5 9.cd5 ab4 10.ab4 Ra1 11.Ba1 ed5 12.b5=) 9.Be2 (9.cd5 cd5 10.Be2 0-0=) 9...0-0 (9...dc4 10.Qc4 Nb6 11.Qf4=) 10.d3 (10.cd5 ed5 11.0-0 Be6=) 10...Rc8 (10...a5 11.0-0=) 11.0-0 Bd6 (11...dc4 12.dc4 Qc7 13.Rfd1=) 12.h3 (12.c5 Bc7+=) 12...Qe7 (12...Ne5 13.Rfd1=) 13.Rae1 (13.Rfd1 Ra8=) 13...dc4 14.dc4 e5 (14...c5 15.Nb5 Bb8 16.Rd1=) 15.c5 Bb8 (15...Bc7 16.Rd1=) 16.Nh4 (16.Bc4 b5 17.cb6 Nb6=) 16...Bh7 17.f4 (17.Rd1 e4 18.g3 Rcd8=+) 17...ef4=+ 18.ef4 Qe3 19.Kh1 Qg3 20.Nf3 Nh5 (20...Bf4 21.Ba6 Ng4 22.Ne2 Nf2 23.Rf2 Qf2 24.Bd4 Qe1 25.Ne1+–) 21.Bc1 Nf4 (21...Rce8 22.Bc4 Re1 23.Re1 Nf4 24.Bf4 Qf4 25.Ne2–/+) 22.Bf4= Qf4 23.Bc4 Bg6 24.Ne2 (24.Re7 Rc7 25.Ng1 Qg5 26.Bf7 Kh8=) 24...Qc7 25.Ned4 (25.Bd3 Bd3 26.Qd3 Rcd8=+) 25...Rce8 26.Qa2 (26.Bd3 Bd3 27.Qd3 Ne5 28.Ne5 Re5 29.Re5 Qe5=+) 26...Ne5 27.Ne5 Re5 28.Re5 Qe5 29.Nf3 Qf4 30.Qe2 Bh5 31.g4 (31.Kg1 Rd8–/+) 31...Bg6 32.Nh4 (32.Nd2!? Qd4–/+) 32...Be4–+ 33.Nf3 Re8 (33...b5 34.cb6 ab6 35.b5–+) 34.Kg1 Re7 (better is 34...b5 35.Ba2 Rd8–+) 35.Qh2?? (better is 35.Qd2–+) 35...Qe3 (35...Bf3?! 36.Qf4 Bf4 37.Rf3=+) 36.Qf2 Bf3 37.Qe3 Re3 38.a4 (38.Rf2 Ra3 39.Ra2 Ra2 40.Ba2 Be5–+) 38...Bd5 (better is 38...Bg3!? 39.Rc1–+) 39.Bd5 cd5 40.Rd1 Re5 (41.Kf2 Bc7–+) 0–1. Franek,Michal – Wasilewski,Pawel, Krakow op–B, 1999.

8.Nd4 Bg4 9.Qc2 (9.f3 Bh5=) 9...Bh5 10.f4 Bg6 11.Bd3 (11.f5 ef5 12.Nf5 dc4 13.Bc4 Bf5 14.Qf5 b5+=) 11...Bd3 (11...e5!? 12.fe5 Bd3 13.Qd3 Ne5-/+) 12.Qd3= Be7 13.Nf3 dc4 14.Qc4 Nb6 15.Qe2 Nbd5 16.0-0 0-0 17.e4 (better 17.Ne5=) 17...Nf4-/+ 18.Qe3 Nd3 19.Rab1 Ng4 (19...Nb2?! 20.Rb2 Qb6 21.d4=+) 20.Qd4 Bf6 21.Qd8 Rfd8 22.h3 Nb2 (22...Nge5 23.Ne5 Ne5 24.Rbd1-+) 23.Rb2 Ne5 24.Ne5 Be5 25.Rc2 Rd3 26.Rf3 Rad8 27.Rd3 Rd3 28.Kf1 Kf8 29.Ke2 Rg3 30.Kf2 Bd6 31.d4 (31.b5!?-/+) 31...Rd3-+ 32.e5 Be7 33.Ne4 Rd4 (worse 33...Ra3 34.b5-/+) 34.Ke3 (34.Nd2 Rd5 35.Nc4 f6-+) 34...Rd1 (better 34...Rd5!? 35.Nc5 Bc5 36.bc5 Re5 37.Kf2-+) 35.Nc5 b6 (35...Bc5 36.bc5 Rd5 37.Ke4-+) 36.Nd3 Rf1 (better 36...c5!?-+) 37.Rc6=+ g6 38.Rc8 Kg7 39.Rc7 Bg5 40.Ke2 Ra1 (40...Rg1!? 41.Kf3 Rd1=+) 41.Ra7= Ra2 42.Kf3 Rd2 43.Nf2 Rd5 44.Ne4 Re5 45.g4 Rd5 46.Ke2 (46.Ng5 hg5 47.Ke2-/+) 46...Re5 (46...Bc1!?-/+) 47.Kf3=+ Rd5 48.Ke2 Bf6 49.Ke3 Bd4 50.Kf3 g5 51.Rb7 Kg6 (51...b5 52.Ke2-+) 52.a4-/+ f5 53.gf5 Rf5 54.Ke2 Re5 55.Kd3 Kf5?? (better 55...Bg1-/+) 56.Rf7+- Kg6 57.Rb7?? (better 57.Rf6 Kg7 58.Kd4 Rd5 59.Ke3+-) 57...Bg1-/+ 58.Rd7 Kh5 59.Nf6 Kh4 60.Rh7 Kg3 (60...Kh3!? 61.Rh6 Kg2-/+) 61.Rh6= Re3 62.Kd2 1-0. b4 (1855) - cirilek (1690), Rated Classical game, lichess.org, 2013.

8.cd5 ed5 9.d4 Be7 10.Be2 (10.Bd3 Bd3 11.Qd3 Nb6+=) 10...0-0 11.0-0 Re8 12.Rc1 Ne4 (12...Bd6 13.Bd3 Bd3 14.Qd3+=) 13.Ne4 (13.b5 Nef6=) 13...de4 (13...Be4 14.b5 Qb6 15.a4+=) 14.Nd2 a5 15.b5 Qb8 16.Re1 (16.bc6 bc6 17.Qc2 Bf8+=) 16...Nf6 17.Qb3 (17.bc6 Bd6 18.d5 Nd5+=) 17...a4 18.Qa2 Be6 19.Bc4 (19.Qb1 Bd6 20.h3 Re7=) 19...Bd5 (19...Bd6!? is an interesting alternative 20.g3 Bd5=) 20.bc6 bc6 21.Rb1 Qd6 22.Rec1 Ng4 23.Nf1 Rab8 24.Ng3 (24.h3 Nf6=) 24...Rb5 (better is 24...Red8+=) 25.h3?? (better is 25.Bc3 is the best chance 25...Qa3 26.Qa3 Ba3 27.Bb5 cb5 28.Rd1=) 25...Ne3 26.Bd5 cd5 27.Bc3–/+ Rb1 28.Qb1 Bg5 29.Bb4 Qb8 30.Rc5? Bf4?? not a good decision, because now the opponent is right back in the game 31.Ne2+= Nc4 32.Rd5? e3 33.f3 Nd2?? Black threatens to win material: Nd2xb1. there were better ways to keep up the 34.Qd3 Bg3 35.Bd2?? gives away a clear win ed2–+ 36.Qd2 Qb1 (36...Qb1 37.Nc1 Qb2–+) 0–1. Sann,Michael (2070) – Abraham,Ludwig (1845), Regionalliga SW, 2002. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 c6 4.e3 Bf5 5.c4 e6 6.a3 h6)

8.cd5 ed5 9.Be2 Bd6 =.

7.Nc3 Be7

8.Be2 0-0 9.0-0 Nbd7 10.b5 Rc8 11.bc6 bc6 (worse 11...Rc6 12.Nd4+/-) 12.d4 Bh7 (12...Rb8 13.Ra2=) 13.c5 Rb8 14.Bc1 Qc7 15.Bd2 (15.Qa4 e5=) 15...e5 16.Qa4 ed4 17.ed4 (worse 17.Nd4 Rfc8-+) 17...Rfe8 18.Rfe1 Ng4 (18...Ne4 19.Ne4 de4 20.Ba5+=) 19.Bf1 (19.g3 Qb7+=) 19...Bf5 (19...Rb2 20.Qd1=) 20.g3 (better 20.h3 Ngf6 21.Na2+=) 20...Ngf6?? (better 20...Rb2=) 21.Bf4+- Qc8 (21...Qb7 22.Bb8 Nb8 23.Ne5+-) 22.Bb8 Qb8 (22...Nb8 23.Qa7 Ne4 24.Ne4 de4 25.Ne5+-) 23.Ne5 (better 23.Qc6 Qb3 24.Rac1+-) 23...Ne5 24.Re5 (worse 24.de5 Nd7 25.Qc6 Bc5 26.Nd5 Bd4+/-) 24...Bg6? (better 24...Qb2 25.Rae1 Be6+-) 25.Qc6 Kf8 26.Rae1 Ne4 (26...Be4+-) 27.Nd5 Nd2 (27...Bg5 28.Rb1 Qd8 29.Re8 Qe8 30.Qe8 Ke8 31.Rb8 Kd7 32.Bb5 Ke6 33.Nc7 Kf6+-) 28.Re7 (better 28.Ne7 Be4 29.Ng6 fg6 30.Re8 Qe8 31.Qe8 Ke8 32.Bg2+-) 28...Nf3 29.Kg2?? (better 29.Kh1 Ne1 30.Qd6 Qd6 31.cd6+-) 29...Ne1+= 30.Kh1 (better 30.Re1 Re1 31.Ne3+=) 30...Re7=+ 31.Ne7 Ke7 32.d5 (better 32.Kg1-/+) 32...Qe5?? (32...Be4!? 33.f3 Bf3 34.Kg1 Qe5 35.Qd6 Qd6 36.cd6 Kd6-+) 33.d6 (better 33.f3 Qb8 34.d6 Kf8 35.Qc7 Qc7 36.dc7+-) 33...Kf6-/+ 34.d7 Kg5?? (34...Ke7 35.d8Q Kd8 36.Qa8 Ke7 37.Qa7 Kf8 38.Qa8 Qe8 39.Qe8 Ke8 40.Bb5 Ke7-+) 35.d8Q f6 36.Qd2 (36.h4 Kg4 37.Qd1 Qe2 38.Qe2 Nf3 39.Qef3) 36...Kh5 37.f4 (37.Qd1 Qe2 38.Be2 Kg5 39.Qd2 Kf5 40.Qf4) 37...Be4+- 38.Bg2 Bg2 (38...Bc6 39.fe5 Ng2 40.Qg2 Bg2 41.Kg2 fe5+-) 39.Qcg2 Qe6 40.Qge2 Qe2 41.Qe2 Nf3 (41...Kg6 42.c6 Kf5 43.c7 Kg6 44.Qe8 Kh7 45.c8Q Nd3 46.Qf5 g6 47.Qfg6) 42.Qf3 (42.f5 Kg4 43.Qe4 Kh3 44.Qf3 g6 45.fg6 a6 46.Qf5) 42...Kg6 43.Qb7 (43.Qe4 Kf7 44.c6 f5 45.Qd5 Kg6 46.c7 h5 47.c8Q Kh7 48.Qf7 h4 49.Qh5) 43...f5 (43...h5 44.c6 h4 45.c7 a6 46.c8Q f5 47.Qe8 Kh7 48.Qh5 Kg8 49.Qc8) 44.Qa7 (44.c6 h5 45.c7 a6 46.c8Q a5 47.Qf8 h4 48.Qfg7 Kh5 49.Qg5) 44...Kh5 (44...h5 45.c6 h4 46.c7 hg3 47.c8Q Kh7 48.Qf5 Kh6 49.Qb6 g6 50.Qbg6) 45.Qg7 (45.Qf7 g6 46.Qe6 g5 47.h3 gf4 48.Qf5) ½-½. sezwho (2070) - kabalist (2120), Rated Bullet game, lichess.org, 2014. (=1.Nf3 d5 2.b4 c6 3.Bb2 Bf5 4.e3 e6 5.a3 Nf6 6.c4)

8.h3 Nbd7 9.Be2 Bh7 10.cd5 cd5 11.Rc1 0-0 12.Qb3 Rc8 13.0-0 Bd6 14.Nd4 Bb8 15.f4 Nb6 16.d3 Qe7 17.g4 e5–/+ 18.Nf3 ef4 19.e4 de4 20.de4 Ne4 21.Bd3 Ng5 22.Bh7 Kh7 23.Ng5 Qg5 24.Qc2 f5 25.Rf3 Kh8 26.Kf2 fg4 27.hg4 Qh4 28.Kf1 Qg4 29.Qe4 Nc4 0–1. Mielke,Sven (1925) – Luckow,Rolf (2120), Wichern op 5th, 1999.

7.cd5 ed5

8.Nc3 Bd6 9.Nd4 Bg6 10.Be2 Nbd7 11.0-0 Ne4 12.Ne4+= de4 13.d3 Qc7 14.de4 Bh2=+ 15.Kh1 Be4 16.f4 Bg3=+ 17.Bd3 Bd3 18.Qd3+= 0-0-0 19.Nf5+/– Nf6 20.Qc2 Nd5 21.Bg7 Rhg8 22.Be5 Qd7 23.Rf3 f6 24.Bd4 Rg4 25.Rg3 Rg3 26.Ng3 Qg4 27.Qf5 Qf5 28.Nf5 1–0. pcmvr (2865) – iozeph (2465), net–chess.com, 2009.

8.Nd4 Bg6 =.

8.Be2 Bd6 9.0-0 0-0 10.Qb3 Nbd7 11.Bf6 (11.Nd4 Bg6=) 11...Qf6=+ (< 11...gf6 12.d4+=) 12.Qc3 Bg4 (12...Rfe8 13.d4=+) 13.Qf6 Nf6 (< 13...gf6 14.d4+=) 14.h3 Bd7 (14...Bf3 15.Bf3 a5 16.ba5 Ra5 17.Rc1–/+) 15.d4 (15.Nc3 b5=+) 15...a5–/+ 16.ba5. LostInSpace – PostModernist, ICS, 2000.

7.Be2 Be7

8.0-0 0-0 9.Nc3 a6 10.d3 Nbd7 11.Qc2 dc4=+ 12.dc4?? Bc2–+ 0–1. erisonpassos – leonel28, kurnik, 2011.

8.0-0 0-0 9.Bf6 Bf6 10.d4 Nd7 11.cd5 ed5 12.Bd3 Bd3 13.Qd3 Re8 14.Nbd2 g6 15.Rfc1 a6 16.a4 Qe7 17.b5 ab5 18.ab5 Ra1 19.Ra1 c5 20.Ra7 c4 21.Qc3 b6 22.h3 Qd6 23.g3 Rc8 24.Kg2 Kg7 25.h4 g5 26.hg5 hg5 27.Nh2 Qe6 28.f4 Rh8 29.Ndf1 Qh3 30.Kf2 gf4 31.ef4 Nf8 32.Rb7? Ne6–+ 33.Qf3 Bd4 34.Ke2 Bc5 35.Kd1 Nd4 36.Qe3? Nf5 37.Qe5=+ Kg6 0–1. ludice (1645) – kubajakub11 (1690), kurnik, 2011.

8.0-0 dc4 9.Bc4 Bd3 (9...b5 10.Be2=) 10.Bd3 Qd3 11.Ne5 Qd8 12.f4 (12.d3 Nbd7=) 12...0-0 13.Rf3 (13.d3 a5=) 13...a5 14.Rg3 (better is 14.ba5!? Qa5 15.d3=) 14...ab4–/+ 15.ab4 Ra1 16.Ba1 Nbd7 (16...Na6 17.b5 cb5 18.d3=) 17.Ng4 (17.Qb3 Ne5 18.Be5 Qb6=+) 17...Ng4 (17...Kh8 18.b5=+) 18.Bg7 f5 (18...Kg7 19.Qg4) 19.h3? (19.Bf8 Nf8 20.h3+=) 19...Kg7–+ 20.hg4 Kh7 (< 20...Bb4 21.gf5 Kh8 22.Qh5–/+) 21.g5 (21.gf5 ef5 (21...Rf5?! 22.Qg4 Qf8 23.Qg6 Kh8 24.Qe6–+) 22.b5 cb5–+) 21...Qe8 (better is 21...hg5 22.Rh3 Kg7–+) 22.Rh3–/+ Kg7 23.Rh6 Nf6 24.Qf3? Ng4–+ 25.Rh3 Bb4 26.e4 Qd8 27.Kf1 Qd4 28.Ke1 Rh8 29.ef5 ef5 30.Rh8 Qg1 31.Ke2 Kh8 32.Nc3 Qd4 33.g6 Kg7 34.Qh3 Kg6 35.Qh4 Qf2 36.Qf2=+ Nf2 37.Kf2 Bc3 38.dc3–/+ Kh5 39.Ke3 Kg4–+ 40.Kd4 Kf4 41.Kc5 Kg3 42.c4 b5 43.Kd4 bc4 44.Ke3 c3 45.Ke2 f4 46.Kf1 c2 47.Ke2 c1Q 48.Kd3 Qc5 49.Kd2 Qc4 50.Ke1 Qc2 (51.Kf1 Qd1) 0–1. Reeves,A – Jarosz,Stan, USA–ch amat North, 1994.

8.cd5 ed5 9.0-0 0-0 =.

6.Qb3 Bd6

7.a4 0-0 8.a5 Nbd7 (8...dc4 9.Bc4 Nd5 10.Bd5 ed5 11.b5=+) 9.d4 (9.c5 Bc7=+) 9...Qe7 10.b5 Bb4 (10...c5 11.Nbd2=+) 11.Bc3= Bc3 12.Nc3 dc4 13.Bc4 cb5 14.Bb5 Ne4 15.Be2 (15.Qa3 Qa3 16.Ra3 Ndf6=) 15...Nc3 16.Qc3 Rfc8 17.Qb2 (17.Qb3 Rc7=) 17...Rc2 (better 17...Nf6=+) 18.Qb7-+ Rb8 19.Qa7 Qb4 20.Kf1 Re2! 21.Ke2 (21.Qa6 Qc3 22.Qe2-+) 21...Qc4 22.Kd1 (22.Ke1 Qc3 23.Nd2 Qa1 24.Ke2 Qh1 25.Qd7 Bc2-+) 22...Qc2 (22...Rb2 23.Qa8 Nf8 24.Qf8 Kf8 25.Nd2 Qc2 26.Ke2 Qd2 27.Kf3 Qf2) 23.Ke1 Qc3 (23...Rb1 24.Rb1 Qb1 25.Ke2 Bd3 26.Kd2 Qc2 27.Ke1 Qe2) 24.Nd2-+ Qa1 25.Ke2 Qa4 (better 25...Qh1 26.Qd7 Bc2-+) 26.Rc1 Qb5 27.Ke1 Nf8 (27...e5 28.d5 Nf6 29.d6-+) 28.Qc5 (28.e4 Bg6=+) 28...Qb2 (28...Qa6 29.e4 Bg6 30.Ra1-/+) 29.Qc3 (29.e4 Bg6 30.Rb1 Qb1 31.Nb1 Rb1 32.Kd2 Be4=) 29...Qc3 (better 29...Qb7!? 30.Qc6 Qa7-/+) 30.Rc3= Ra8 31.e4 Bg6 32.Ra3 Nd7 33.f4 (33.Ke2 Kf8=) 33...f6 (33...Nf6!?=+) 34.g4= Bf7 35.h4 e5 36.fe5 fe5 37.d5 Nc5 38.Ke2 Be8 39.Ke3 Bb5 40.Nb3?? (better 40.Nf3+=) 40...Bc4?? (better 40...Nb3 41.Rb3 Ra5-+) 41.Nc5+- Bb5 (41...Ba6 42.Nd7 Re8 43.Rb3+-) 42.Ne6 (42.a6 g5 43.h5 Ra7+-) 42...Be8 (42...Bd7 43.Nc7 Ra7+-) 43.Nc7 Bf7 (43...Rc8 44.Rc3 Bd7+-) 44.Na8 Bg6 45.a6 Be4 46.a7 (46.Ke4 Kh8 47.a7 Kg8 48.Nc7 h6 49.a8Q Kh7 50.Qf8 h5 51.Ne8 hg4 52.Qg7) 46...g5 47.Nc7 h5 (47...Kg7 48.Ne6 Kf7 49.a8Q Bd5 50.Ra7 Ke6 51.Qc8 Kd6 52.Qc7 Ke6 53.Qe7) 48.a8N (48.a8Q Kh7 49.Qf8 Bf5 50.Qe7 Kg6 51.gf5 Kf5 52.Qg5) 48...gh4 49.Ne6 (better 49.Ke4 h3 50.Rh3 hg4 51.Rh1 Kf7 52.d6 Kf6 53.d7 Ke7 54.Rh7 Kd6 55.d8Q Kc5 56.Na6 Kb5 57.Qb6 Kc4 58.Rc7) 49...hg4 (49...Bd5 50.Nec7 Bc6 51.gh5 h3+-) 50.Ng5 (50.Ng5 Bd5 51.Nc7+-) 1-0. upep (2055) - avv (2035), Rated Blitz game, lichess.org, 2014.

7.a4 Qe7 8.b5 (8.c5 Bc7=) 8...0-0 9.d4 Nbd7 10.Nbd2 Ne4 11.c5 Bc7 12.a5 White intends b6 12...Nd2 13.Nd2 e5 14.b6 ab6 15.ab6 Ra1 16.Ba1 Ra8 17.Bc3 (17.bc7 Ra1 18.Ke2 Qe8-/+) 17...Bd8 (17...ed4 18.Bd4 Be5 19.Nf3 Bd4 20.Nd4 Ra1 21.Ke2-+) 18.Qb2 (18.Qb4 ed4 19.Qd4 Qf8-/+) 18...ed4 19.Bd4 Nc5 20.Bg7 f6 21.Bh6 Nd3 (better 21...Qe5!? 22.Qe5 fe5-+) 22.Bd3-/+ Bd3 23.Qd4 c5?? (23...Bb5 24.Qg4 Kh8-+) 24.Qd3 (24.Qd5 Kh8 25.Qd3 Ra1 26.Nb1 Bb6+-) 24...Bb6 (24...Ra1 25.Nb1 Qe4 26.Qe4 de4 27.0-0 Bb6 28.Nc3 Rf1 29.Kf1+-) 25.0-0 c4 (25...Rd8 26.e4+-) 26.Qc3 (better 26.Qd5 Qf7 27.Qb5 Bc7+-) 26...Ba5 (26...Bc7 27.Qd4 Qe6 28.e4 de4 29.Ne4+-) 27.Qa1 (27.Qd4 Rd8+-) 27...b5 28.Nf3 Ra7? (28...b4 29.Qd4 Qe6 30.Qc5+-) 29.Nd4 (29.Qd4 Rd7+-) 29...Bb6?! (29...Qd7+-) 30.Nc6 Ra1 31.Ne7 Kf7 32.Ra1 Ke7 33.Ra6 b4 (33...Bd8 34.Ra7 Kd6 35.Bf8 Kc6+-) 34.Rb6 b3 35.e4! d4 (35...de4 36.Rb7 Double attack) 36.e5! fe5 37.Bg5 Kd7 38.Rb4 c3 39.Rb3 c2 (39...Ke6 40.Rb6 Kd5 41.Rh6+-) 40.Bc1 d3 (40...Ke6 41.Rd3+-) 41.Kf1 (41.Rd3!? Ke6+-) 41...e4 42.Ke1 (42.f3 Ke6+-) 42...Ke6 (42...Kc6 43.f3 Kd5 44.fe4 Ke4 45.Rb4 Kd5 46.Kd2+-) 43.Kd2 Kd5 44.Ke3 Kc4 45.Ra3 Kb4 46.h4 d2 47.Kd2 Kc4 48.Kc2 e3 49.fe3 Kb4 50.Rd3 h5 51.e4 Kc4 (51...Kc5 52.Be3 Kb5 53.e5 Kb4 54.e6 Ka5 55.e7 Kb4 56.Rb3 Kc4 57.e8Q Kd5 58.Rd3 Kc4 59.Qa4) 52.e5 (52.e5 Kb4 53.e6 Kb5 54.e7 Kc5 55.Be3 Kb4 56.Rb3 Kc4 57.e8Q Kd5 58.Rd3 Kc4 59.Qa4) 1-0. upep (2065) - avv (2025), Rated Blitz game, lichess.org, 2014.

7.Nc3 Nbd7 8.Be2 dc4 9.Bc4 0-0 10.Nd4 Bg6 11.Be6 (better is 11.0-0=+) 11...fe6?? (better is 11...Ne5 12.Bc4 Bd3 13.Bd3 Nd3 14.Ke2 Nb2 15.Qb2 Re8=) 12.Qe6+/– Kh8 13.Qd6 Bd3?? (better is 13...Ne8 14.Qg3 Qe7+/–) 14.Ne6+– Qe8 (14...Qb8 15.Qd3 Re8 16.Ng5+–) 15.Nf8 (15.Qd3?! Qe6 16.0-0 Ne5+/–) 15...Bf5 (15...Qf8 16.Qd3 Qb4 17.Rb1+–) 16.Nd7 Nd7 17.0-0 1–0. mluka (2080) – dragonpower (1775), net–chess.com, 2001.

7.c5 Bc7 8.Nd4 =+.

7.cd5 cd5 8.Nc3 0-0 9.Nb5 Be7 10.Nbd4 Be4 11.d3 Bf3 12.Nf3 Qb6 13.Bf6 (13.a3 Nc6=) 13...Bf6+= 14.Rc1 (14.d4 a5+=) 14...Nc6 ½–½. Vilkesalo,Tero – Grobler,David J, corr or02–019, 2002.

7.cd5 ed5 8.Be2 +=.

7.Be2 Nbd7 8.d4 0-0 9.0-0 a6 10.a4 (10.c5 Bc7=) 10...Ne4 (10...dc4 11.Bc4 Nd5 12.b5=+) 11.Nfd2 (11.c5 Bc7=) 11...Ndf6 (11...Qh4 12.f4=+) 12.f3 Nd2 13.Nd2 Qc7 14.f4 Ne4 15.Ne4 Be4 (15...de4? 16.c5+-) 16.c5 Be7 17.b5 ab5 18.ab5 Kh8 (18...cb5!? 19.Qb5 Rfc8=) 19.b6+= Qd7 20.Ra7 Rab8 (20...Ra7 21.ba7 Ra8 22.Ra1=) 21.Bc3 f6 22.Be1 e5 (22...Ra8 23.Bg3+/-) 23.Bg3 (23.fe5!? fe5 24.Bg3+/-) 23...ed4+= 24.ed4 f5 25.Qe3 Bf6 26.Rfa1 g6 27.R1a3 (27.Qf2 Rfe8 28.Bf1 Qe7+=) 27...Qg7 28.R3a4 h5 (28...Bc2 29.Rb4=) 29.h4 (29.Qd2 Rbe8+=) 29...Kh7 30.Bf2 Rfe8 31.Qd2 Qe7 (31...Re7 32.Bd3=) 32.Ba6+= Bh4? (better 32...Kh6+=) 33.Bb7+- Bf2 34.Qf2 (34.Kf2?! Kg8 (34...Rb7?? 35.Rb7 Qb7 36.Ra7+-) 35.Ba6 Qf6+/-) 34...Kh6 (34...Rb7 35.Rb7 Qb7+-) 35.Bc6 Qf6 36.Be8 Re8 37.Rc7 g5 (37...Rg8 38.Raa7 g5 39.b7+-) 38.Raa7 Rh8 39.Rf7 (39.fg5 Kg6 40.gf6 Re8 41.Rg7 Kf6 42.Qh4 Ke6 43.Rg6) 39...Qg6 40.Rg7! Qg7 (40...Qg7 41.fg5 Double attack (41.fg5 Decoy)) 41.Rg7 Kg7 42.fg5 h4 43.Kh2 1-0. Mely (2230) - Settebello (2310), ChessWorld.net, 2016.

6.Qb3 Nbd7

7.a4 a5 8.b5 Nc5 9.Qa2 dc4 10.Bc4 Nd3 (better 10...Nd5!? 11.0-0 Nb4-/+) 11.Bd3=+ Qd3 12.Ne5 Qd5 13.Qd5 cd5 14.0-0 Bd6 15.f4 0-0 16.h3 h5 17.Nc3 Bb4 18.Rfc1 Rac8 19.Ne2?? (better 19.Nf3=+) 19...Bd2-+ 20.Rc8 Rc8 21.Kf2 Ne4 22.Kf3 f6 23.g4 Bh7 24.Nd7 h4 25.Nd4 Kf7 (better 25...Ng3!? 26.f5 ef5-+) 26.Nb6-/+ Rc7 27.f5 e5 28.Ne6? (better 28.Nd5!? Ng5 29.Ke2=+) 28...Rc2-+ 29.Ba3?? (better 29.Nd5 Nd6 30.Be5 fe5 31.Ng5 Kg8 32.Rd1-+) 29...Bb4 (better 29...Bc3 30.Nd5 Nd2 31.Ke2 Ba1 32.Nd8 Ke8 33.Kd1-+) 30.Nd5 Nd2 31.Ke2 Ba3 (better 31...Nb3 32.Kd3 Na1 33.Nb4 e4 34.Kd4 ab4 35.Bb4-+) 32.Ra3?? (better 32.Kd3 Rc1 33.Ra3+=) 32...Nc4-+ 33.Kd3 Na3 34.Nd8 Ke8 35.Nb7 Rh2 (35...Bg8!? 36.e4-+) 36.Na5 (36.Nd6 Kd8 37.Nb7 Kc8 38.Nc5-+) 36...Rh3 (better 36...Bg8 37.Nc7 Kd7-+) 37.b6 Rh1 38.b7 Rb1 39.Nc3 Rb6 40.Nd5 Rb7! 41.Nb7 Bg8 42.e4?? (better 42.Nb6 h3 43.Nd6 Kd8 44.Ne4-+) 42...Bd5 (better 42...h3 43.g5 Bd5 44.ed5 h2 45.gf6 gf6 46.Nd6 Kd7-+) 43.ed5-/+ h3 44.Nd6 Kd7 45.Ne4 h2 46.Ng3 Kd6 47.Kc3?? (better 47.Ke3-/+) 47...Kd5-+ 48.Kb4 (48.Kd2 e4 49.Ke2-+) 48...Nc4 49.a5 (49.Kc3 e4 50.Nh1 Ne3-+) 49...Na5! 50.Ka5 (50.Kc3-+) 50...e4 51.Kb4 Kd4 52.Kb3 Kd3 53.Kb2 e3 54.Kc1 e2 55.Ne2 Ke2 56.Kc2 (56.Kb2 h1Q 57.Kc3 Ke3 58.Kc4 Qc6 59.Kb3 Kd3 60.Ka2 Qc2 61.Ka3 Kc4 62.g5 Qb3) 56…h1Q (56...h1Q 57.Kc3 Ke3 58.Kc4 Qc6 59.Kb4 Kd3 60.Kb3 Qc3 61.Ka2 Kc2 62.g5 Qa5) 0-1. zembelek (2050) - Monkeystar (2045), Rated Blitz tournament hwx47hjp, lichess.org, 2015.

7.d3 dc4 8.Qc4 Nb6 9.Qb3 –/+.

7.d4 ½–½. Hetey,Laszlo (2345) – Sandor,Christian (2380), Balatonbereny IM–A, 1996. (True warriors :)).

7.d4 dc4 8.Bc4 Nb6 (better is 8...b5!? 9.Bf1 Bb1 10.Rb1 a5–/+) 9.Be2 Qd5 (better is 9...Nbd5 10.a3 Be4=) 10.Qd5? (better is 10.b5= and White can hope to live) 10...Bb4–/+ (10...cd5?! 11.a3=; 10...Nbd5?! 11.a3=; 10...Nfd5?! 11.a3=; 10...ed5?! 11.b5=) 11.Bc3 Nbd5 (11...Nfd5 12.Bb4 Nb4 13.Na3–/+) 12.Bb4 Nb4 13.Na3 Nd3 (13...Nfd5 14.Kd2–/+) 14.Bd3 Bd3 15.Ne5 Ba6 16.Rb1 Ne4 17.Rb3 Rd8 18.f3 Nd6 19.Kf2 0-0 20.Rc1 f6 21.Nd3 Bd3 22.Rd3 Rd7 23.Rc5 Rfd8 24.Nc2 Nc8 25.Rb3 Ne7 26.e4 (26.Rb1 e5!–/+ Decoy: e5) 26...b6 27.Rc4 e5 28.Nb4? (better is 28.de5!? Rd2 29.Kf1 Rd1 30.Ne1 fe5 31.Ra3–+) 28...Rd4–+ 29.Nc6 Nc6 30.Rc6 Rd2 31.Kg3 Ra2 32.Rbc3 (32.Rc1 Rdd2 33.Rg1 Rf2–+) 32...Rdd2 33.Kh4 (33.Kg4 what else? 33...Rg2 34.Kf5–+) 33...Rg2 34.h3 (34.Rc1 does not improve anything 34...Rh2 35.Kg4 Kf7 36.Rc7 Kg6–+) 34...Kf7 35.f4 0–1. Klatil,Karel (2045) – Benes,Petr (2165), CZE–chT2, 2001.

7.Nd4 Be4 =+.

7.cd5 cd5 8.Nh4 Bg6 (8...Bg4 9.f3 Bh5 10.Be2=+) 9.Ng6= hg6 10.Nc3 a6 11.a3 Ng4 (11...Rc8 12.Rc1=) 12.h3 f6 (12...Rc8 13.Rc1=) 13.Nd5 (13.Be2!? Nge5 14.d4+=) 13...ed5= 14.Qd5 Nge5 (14...Qb6!?=) 15.Be5+/– Ne5 16.Qb7 Qc8 (better is 16...Be7!?+/–) 17.Qc8+– Rc8 18.Ba6 Rb8 (18...Ra8 19.Bb5 Kd8 20.f4 Bb4 21.fe5 Ra3 22.Ke2+–) 19.d4 Nd7 20.Kd2 Bd6 21.Rhc1 Ke7 22.Bd3 f5 23.f3 (23.Rcb1 Nf6+–) 23...Nb6 24.Ke2 Nd5 25.Bc4 Nf6 26.Kd3 g5 27.e4 fe4 28.fe4 Nh5 29.e5 Nf4 30.Ke4 Ng2 31.ed6 Kd6 32.Kf3 Nf4 33.Bf1 Ne6 34.d5 Nd4 35.Ke3 Nb3? 36.Rc6 Kd5 37.Bg2 Ke5 38.Rb1 g4 39.Rb3 gh3 40.Rbc3 Rb5 41.Bh1 h2 42.a4 Rh3 43.Kd2 Rc3 44.Kc3 Rb8 45.a5 Rf8 46.Kb2 Rf4 47.Rc5 Kd6 48.Kb3 Rf1 49.Bb7 h1Q 50.Bh1 Rh1 51.Rg5 Rh7 52.Ka4 Kc7 53.Kb5 Kb7 54.Kc5 Ka6 55.Rg6 Kb7 56.Kb5 Rh5 57.Ka4 Rh7 58.a6 Kb8 59.Ka5 Ka7 60.b5 Kb8 61.Kb6 (61…Rh8 62.a7 Ka8 63.Ka6 (63.Rg7?! Rh6 64.Kc7 Ka7+–) 63...Rh3 64.Rd6 Rh8 65.b6 Rb8 66.ab8R Kb8 67.Rd8) 1–0. Zelezny,Jiri – Spacek,Libor, Plzen op–C U16, 1996.

7.cd5 Nd5 8.a3 =+.

7.Be2 Qb6 8.c5 Qc7 9.0-0 Be7 10.h3 h6 11.Nc3 0-0 12.a4 e5 13.a5 a6 14.Na4 Rae8 15.Nb6 Nb6 (better is 15...Be6!?=) 16.ab6+/– Qb8 17.Be5 Qc8 18.Rfd1 Be6 19.Qb2 Rd8 20.Nd4 Ne8 21.Ne6 fe6 22.f4 (22.d4 Bh4 23.Rf1 Bf6+/–) 22...Nf6 23.Bg4 (23.Bd3 Ne8+–) 23...Qd7 (23...Ng4 24.hg4 Rf7 25.d3+/–) 24.Qd4 (24.Bf3!?+/–) 24...Ng4 25.hg4 Bf6 26.Rf1 Qf7 27.Rae1 (27.g5 hg5 28.fg5 Be5 29.Qe5 Qg6+/–) 27...Rde8 (27...Qg6 28.f5 Qg5 29.d3+=) 28.Rf3 (28.g5!? hg5 29.fg5 Be5 30.Qe5+/–) 28...Qg6+= 29.Rg3 (better is 29.g5 hg5 30.Bf6 Rf6 31.Qe5=) 29...Bh4–/+ 30.Kh2 Bg3 31.Kg3 h5 (31...Rf7 32.Rh1–/+) 32.g5+= Rf7 33.Rh1 Rf5 34.Rh4 Qf7 (34...Rff8 35.Qa1 Kf7 36.Kf2=) 35.Kh2 g6 (35...Ra8 36.e4 de4 37.Qe4=) 36.g4 (better is 36.Qa1!?+/–) 36...Rg5= 37.gh5?? (better is 37.fg5 Qf2 38.Kh3 Qf1 39.Kg3 Qe1 40.Kh3 Qf1 41.Kh2 Qf2 42.Kh3 Qf1=) 37...Rh5–+ 38.Rh5 gh5 39.Qd3 (39.d3 Qg6 40.e4 Kf7–+) 39...Qf5 40.Qe2 (40.e4 de4 41.Qg3 Qg4 42.Qg4 hg4–+) 40...Kh7 (40...Kf7 41.d3–+) 41.Qf3 Rg8 42.d3 Qg4 43.Qg4 Rg4 44.Kh3 (44.Bd6–+) 44...Rg1 45.e4 (45.Kh4 Kg6–+) 45...de4 46.de4 Kg6 47.Bc3 Rd1 (47...Rc1 48.Be5–+) 48.Kh4 Rd3 49.Be5 (49.Be1 Rd4–+) 49...Rb3 50.Bd6 (50.f5 ef5 51.ef5 Kf5–+) 50...Rb4 51.Kg3 Re4 52.Kf3 Rc4 (52...Kf5 53.Kf2–+) 53.Be7 (53.Ke3 Kf5 54.Kf3 h4–+) 53...a5 54.Ke3 a4 55.Kd3 Rf4 56.Kc3 h4 57.Bd6 (57.Bh4 Rh4 58.Kb2 e5 59.Ka3 e4 60.Ka4 e3 61.Ka3 e2 62.Kb2 e1Q 63.Kc2 Rh3 64.Kb2 Qd2 65.Kb1 Rh1) 57...Rf3 (better is 57...Kf5 58.Kd3–+) 58.Kb2 h3 59.Ka2 h2! 60.Bh2 (60.Bh2 Rf2 Double attack (60...Rf2 Decoy)) 60...Rf2 61.Ka3 Rh2 62.Ka4 Rc2 63.Kb4 e5 64.Kb3 Rc5 65.Kb4 Plans e4 65...Rb5 66.Kc4 Rb6 (66...Rd5 67.Kb4 e4 68.Kc4 e3 69.Kb3 e2 70.Kb4 e1Q 71.Kc4 Qc1 72.Kb3 Rb5 73.Ka4 Qa1) 67.Kc3 Rb5 0–1. orangutanb4 (1940) – gramdlajaj7 (1970), kurnik, 2012.

7.Be2 c5 8.a3 Qb6 (8...dc4 9.Bc4 cb4 10.ab4=) 9.d4 (9.cd5 ed5 10.0-0 Bd6=) 9...dc4 10.dc5 cb3 11.cb6 a6 (11...Nb6 12.Nbd2 Bc2 13.Nd4=) 12.Nbd2 Be7 13.Nb3 Nb6 14.0-0 0-0 (15.Rac1 Rfd8+=). Harm – Baumann, corr SOK–87–17, 1988.

7.Be2 Qc7 8.Nd4 Bg6 9.cd5 Nd5 10.a3 e5 11.Nb5 Qb8 12.N5c3 N7b6 13.0-0 Bd6 14.e4 (14.d3 0-0=) 14...Nc3 (14...Nf4 15.Qd1=+) 15.Nc3= f6 16.Qe6 Be7 17.Qh3 Bf7 18.Rfd1 0-0 19.d4 Nc4 20.Bc4 Bc4 21.de5 Be6?? (better is 21...fe5 22.Na4 b5+=) 22.Qe6+– Kh8 (22...Rf7 23.Rd7 Qe8+–) 23.Qe7 Re8 24.Qd6 (24...fe5 25.Qb8 Rab8 26.Rd7+–) 1–0. vik – antoni, internet, 2001.

7.Be2 Be7 8.0-0 0-0 9.Nc3 Ne4 10.d3= (10.cd5 ed5 A) 11.d3 Nd6 (11...Be6 12.Na4 Nd6 13.Nc5 Bf5 14.Nd4 Bg6 15.Bg4 Nf6; 11...Nc3 12.Bc3 Bg6 13.g3 h6 14.Rab1 Qc7 15.Bd4 Rfe8) 12.Nd4 Bg6 13.h3 a5 14.b5 c5 15.Nf3 c4; B) 11.Ne4 Be4 12.d3 Bg6 13.Bc3 h6 14.Rac1 Qb6 15.h3 Rfe8) 10...Nc3 (10...dc4 11.dc4 c5 (11...a5 12.Rfd1 Qc7 13.a3 Ndf6 14.Ne4 Ne4 15.Be5 Qb6; 11...Qc7 12.c5 a5 13.a3 Bf6 14.g3 Rfd8 15.Rfd1 Ne5) 12.b5= (12.Rad1 Qc7 13.Bd3 Nc3 14.Qc3 Bf6 15.Qb3 Rfd8) 12...Qc7 13.Rad1 Rfd8 14.Bd3 Ndf6 15.Ne4 Ne4) 11.Bc3 Bf6 (11...a5 12.a3 dc4 13.dc4 Qc7 14.Nd4 Rfd8 15.Nf5 ef5; 11...dc4 12.dc4 a5 13.a3 Qc7 14.Rfd1 Be4 15.Nd2 Bg6; 11...Qb6 12.Rac1 Bg6 13.h3 h6 14.Rfd1 Rfe8 15.Rd2 Bh5) 12.Rfd1 (12.Nd4 Bg6= 13.Rad1 Qc7 14.cd5 e5 15.d6 Qd6) 12...Bc3 (12...a5 13.a3= a4 14.Qb2 Bc3 15.Qc3 Qf6) 13.Qc3 a6 (13...a5 14.a3= Qf6 15.Qf6 Nf6) 14.Rac1 White intends c5 (14.Nd4 Qf6 15.Rac1 Rfe8) 14...dc4 (14...Re8 15.d4+= (15.Nd4 Nf6) 15...Nf6; 14...Qf6 15.Nd4 Rfe8) 15.dc4 Qc7 (15...Qe7 16.c5+=) 16.Nh4 Bg6 (16...Rad8 17.Nf5 ef5 18.Rd4+=) 17.c5 Rfd8 (17...Nf6 18.Ng6 fg6 19.Bc4+=) 18.Rd4 (18.Ng6 hg6 19.Rd4 Nf6+/–) 18...Nf6 (18...e5 19.Rd6 Be4 20.Rcd1+=) 19.Ng6 hg6 20.Rcd1 e5 (20...Rd4 21.Qd4 a5 22.a3+=) 21.Rd6+/– Ne4 (21...Qe7 22.Rd8 Rd8 23.Rd8 Qd8 24.Qe5+/–) 22.Rd8 Rd8 23.Rd8 Qd8 24.Qe5 Qd2 25.Qe4 Qe2 26.Qb1 g5 27.h3 g4 28.hg4 Qg4 29.a3 Qe2 30.Qf5 f6 31.g3 Qd1 32.Kg2 Kf7 33.Qc8 Qd5+/– 34.f3 Qd2 35.Kh3+= Qe3 36.Qb7 Kg6 37.Qa6 Qf3 38.Qc4 Qh1 39.Kg4 f5 40.Kf4+– Qh6 41.Kf3 Qh1+= 42.Kf4 Qh6 43.Kf3 ½–½. Barrio Pareja,Eduardo (2090) – Guardia Bencomo,Tomas (1885), 4. Open La Laguna ESP, 2010.

7.Nc3 a5

8.a3 ab4 9.ab4 Ra1 10.Ba1 Be7 11.d4 (11.Nh4 Be4 12.cd5 Bd5+=) 11...dc4 (11...0-0 12.Bb2+=) 12.Bc4 b5 (12...Nb6 13.Be2+=) 13.Be2= Nd5 Exerts pressure on the isolated pawn (13...0-0 14.0-0=) 14.e4 (14.Nd5 ed5 15.0-0 0-0=) 14...Nc3 15.ef5 Nd5 (15...Ne2 16.Ke2 ef5 17.d5 cd5 18.Qd5=) 16.0-0+= Bb4 17.fe6 fe6 18.Rc1 Qa8 (18...Qb6 19.Bd3=) 19.Ne5 (better is 19.Bb2!? Be7 20.Qc2+=) 19...Ne5+= 20.de5 0-0 21.Qc2 (21.Bd4 c5 22.Bc5 Bc5 23.Rc5 Qa7 24.Qb5 Nc3–+) 21...Ba3 (21...Rf2 22.Kf2 Qa7 23.Kg3 Qe3 24.Bf3 Be1 25.Re1 Qe1 26.Kh3=) 22.Rd1+= Qa7 23.Bf3 Qb6 24.Bd4 c5 25.Qb3 (25.Bd5 cd4 26.Be4 h6+=) 25...cd4 26.Qa3? (better is 26.Bd5!? ed5 27.Qa3–/+) 26...Nc3–+ 27.Rd3 (better is 27.Ra1 b4 28.Qa6 Qa6 29.Ra6 Rf3 30.gf3–+) 27...b4 28.Qb3 Qa6 (28...Rf5 29.g4 Rf4 30.Bd1–+) 29.Rd2 (29.Rd4?? Qa1 30.Rd1 Nd1 31.Qd1 Ra8–+) 29…Rc8 0–1. Vasut,Karel (2140) – Hosek,Milan (2290), CZE–ChT2D, 2009.

8.a3 Be7 9.cd5 ed5 10.Na4 0-0 11.Be2 Re8 12.0-0 Bg4 13.Nd4 Be2 14.Ne2 Nb6 15.Nb6 Qb6 16.Bf6 Bf6 17.d4 ab4 (17...Be7 18.Rab1+=) 18.ab4= Be7 19.b5 Bd6 20.Rab1 Qc7 21.g3 h5 (21...Ra3 22.Qc2=) 22.Rfc1 Rec8 ½–½. Koskinen,Erkki – Koskinen,Hannu, NS/I4 corr/Ks79 FIN, 1979.

8.ba5 Qa5 =+.

7.d3 a5

8.a3 ab4 9.ab4 Ra1 10.Ba1 Qb6 (10...dc4 11.dc4 Bd6 12.c5=) 11.Bc3 Be7 (11...dc4 12.dc4 Ne4 13.b5=+) 12.Nbd2 0-0 13.Be2 dc4 (13...Ra8 14.0-0=) 14.dc4 (< 14.Qc4 Nd5–/+) 14...Ne4 (14...Rd8=) 15.c5 (better is 15.Ne4!? Be4 16.0-0=) 15...Ndc5!–/+ 16.bc5 Qb3 17.Nb3 Nc3 18.Nfd4 Bg6 19.0-0? (better is 19.h3–/+) 19...e5–+ (19...Ne2?! 20.Ne2 Bd3 21.Re1–+) 20.Rc1 (20.Re1 ed4 21.ed4 Bf6–+) 20...ed4 21.Bf3 (21.Nd4 Ne2 22.Ne2 Ra8–+) 21...Rd8 (better is 21...Na2!? 22.Ra1 Nc3 23.Rc1–+) 22.ed4 Nb5 23.d5 (23.Re1 Bf6–+) 23...cd5 24.Be2 Nc7 25.Na5 Rb8 26.g4 Bg5 27.Rd1 Bc2 28.Rd4 Be7 (28...b6 29.Rb4 Bd2 30.Rb2 Ba5 31.Rc2 bc5 32.Rc5–+) 29.Rd2 Ba4 (29...Be4 30.Nb3–+) 30.Ra2 Bc6 31.Rb2 Ra8 32.Nc6 bc6 33.Rb6 Bc5 34.Rc6 Ne6 35.Ba6 g5 36.Kf1 Bb4 37.Bb7 Ra1 38.Kg2 d4 39.Rc8 Kg7 40.Kf3 d3 41.Ke3 d2 42.Bf3 d1Q 43.Bd1 Rd1 0–1. Wolf,Heinz – Loehr,Gernot, Verbandsliga Nord Baden, 1995.

8.a3 Qb6 9.Bd4 (9.Nd4 dc4 10.dc4 ab4 11.Nf5 ef5=+) 9...Qc7 (9...c5 10.Bf6 Nf6 11.Qa4 Qc6 12.Qc6 bc6 13.bc5 Bc5 14.Ne5=+) 10.Bc3 (10.cd5 cd5 (< 10...Nd5 11.e4+/–) 11.ba5 Qa5 12.Bc3 Qa6=+) 10...ab4=+ 11.ab4 (< 11.Bb4 Qb6 12.Qb2 Bb4 13.ab4 Ra1 14.Qa1 Qb4 15.Nbd2 0-0–/+) 11...Ra1 12.Ba1 Qb6 13.Bc3 (13.b5 dc4 14.dc4 Bd6=+) 13...dc4 14.Qc4 Nd5 15.e4 (15.b5!?–/+) 15...Nc3–+ 16.Nc3 Bg4 17.Be2 (17.d4 Bb4 18.Ke2 e5–+) 17...Bf3 18.gf3 Ne5 19.Qb3 Qb4 20.Qb4 Bb4 21.Kd2 Kd7 22.d4 Ng6 23.Rb1–/+ Bc3 24.Kc3 Kc7 25.Kd2 Ra8–+ 26.Ke3 Ra3 27.Bd3? e5 28.Rd1 c5 29.dc5 Nf4 30.Rd2 Kc6 31.Rd1 Rc3 32.Rd2 Kc5 33.Rc2 Rc2 34.Bc2 Kb4 35.Kd2 b5 36.Kc1 Kc3 37.Kb1 Nd3 38.Bd3 Kd3 39.Kb2 Ke2 40.f4 ef4 41.e5 Kf2 (42.Kc3 h5–+) 0–1. Baldauf,Ernst (1940) – Blaas,Hansjoerg (2045), Wattens op 8th, 1993.

8.a3 Be7 9.Nc3 (9.cd5 cd5 10.Nd4 Bg6–/+) 9...0-0 (9...dc4 10.dc4 ab4 11.ab4 Ra1 12.Ba1–/+) 10.Be2 ab4 11.ab4 Ra1 12.Ba1 Qb6 13.b5? (better 13.cd5!? ed5 14.b5–/+) 13...Nc5–+ 14.Qd1 dc4 15.d4 (15.dc4 Rd8 16.Nd4 cb5 17.cb5 e5 18.Nf5 Rd1 19.Nd1 Qa5 20.Bc3 Qc7–+) 15...Nd3 16.Bd3 Bd3 17.bc6? (17.Ne5 cb5 18.Nd3 cd3 19.Qd3–+) 17...Qc6 18.Ne2 (18.d5 Nd5 (worse 18...ed5 19.Ne5 Qa6 20.Nd3 cd3 21.0-0–+) 19.Ne5 Ne3 20.Qd3 Ng2 (20...Qg2?! 21.Qe4 Qe4 22.Ne4–/+) 21.Kd1 Ne3 22.Qe3 Qh1 23.Qe1 Rd8 24.Ke2 Qh2–+) 18...Bb4 19.Kf1 (19.Bc3 Be2 20.Ke2 Bc3–+) 19...Qa6 (better 19...Ra8 20.h3 Ra2 21.Kg1 Be2 22.Qb1–+) 20.Ne5 (20.g3 c3 21.Ne1 Be2 22.Qe2 Qa1–+) 20...Ra8 21.Bb2 Qa2 22.Bc1 (22.Nd3 cd3 23.Qd3 Qb2 24.g3–+) 22...Qb1 (better 22...Bc2 23.Nc3 Bc3 24.Qe2–+) 23.Nd3 cd3 24.Nf4 d2 25.Ke2 dc1R (25...dc1Q 26.Qc1 Ra2 27.Kf3 Qe4 28.Kg3 g5 29.Qb1 gf4 30.Kh3 Qd5 31.Qd1 Qg5 32.g3 Rf2 33.gf4 Qh6 34.Kg3 Ne4 35.Kg4 f5) 26.Qc1 Ra2 27.Kf3 Qe4 28.Kg3 g5 29.Qc8 (29.Qb1 gf4 30.Kh3 Qd5 31.Qd1 Qg5 32.g3 Rf2 33.gf4 Qh6 34.Qh5 Qh5 35.Kg3 Ne4) 29...Bf8 (29...Kg7 30.Qc7 gf4 31.Qf4 Bd6 32.h3 Nh5 33.Kh2 Bf4 34.g3 Rf2 35.Kg1 Qg2) 30.Qd8 gf4 31.ef4 (31.Kh4 fe3 32.f4 Qf4 33.g4 Qg4) 31...Qg6 32.Kf3 (32.Kh4 Qg4) 32…Ra3 (32...Ra3 33.Ke2 Qc2 34.Kf1 Ra1; 32...Qd3) 0–1. Chin,Yi Hao – Singh,Eshwant (1640), Jolimark HK Open, 2017.

8.b5 Bb4 9.Bc3 Nc5 –/+.

7.d3 Bd6

8.Nbd2 0-0 9.Be2 a5 10.a3 a4 11.Qc2 b5 (11...c5!?=) 12.e4+/- de4 13.de4 Bg6 14.Bd3 (14.cb5 c5 15.Qd1 Bf4+=) 14...Qb8 (14...Rb8 15.Rd1 Bf4 16.0-0+=) 15.0-0 (15.cb5 cb5 16.Qc6 Rd8 17.Qb5 Qb5 18.Bb5 Ne4+= (18...Be4? 19.Ne4 Ne4 20.Bc6+-)) 15...e5 (15...Rd8 16.Rad1=) 16.Rfe1 Rd8 (16...Rc8 17.c5 Be7 18.Nh4+=) 17.Rac1 (17.cb5 c5 18.bc5 Nc5+/-) 17...Ra6 (17...c5 18.bc5 Nc5 19.cb5=) 18.h3 Nh5 19.Bf1 Nf4 (19...Nf8 20.Nb1+=) 20.Ng5 (better 20.g3!? Ne6 21.Qd3+/-) 20...f6 21.Ngf3 Bf7 22.Nh4 (22.Red1 Be6=) 22...g6 (22...Bf8 23.g3 Ne6 24.Red1=) 23.g3+= Ne6 24.Nhf3 Bc7 25.Red1 Bb6 26.c5 (26.Nb1 Nc7+=) 26...Bc7 27.h4 Ndf8 28.Bh3 Qb7 29.Nf1 Raa8 30.Ne3 Rd1 (30...Ng7 31.Nd2=) 31.Rd1+= Rd8 32.Ng4 Rd1 33.Qd1 Kg7 34.Bc1 (better 34.Qd2 Bg8 35.Qh6 Kf7 36.h5+/-) 34...Bd8? (better 34...h5 35.Nh6 Be8+=) 35.Bh6+- Kg8 36.Bf8 Kf8 37.Nh6 (better 37.Nge5 fe5 38.Be6+-) 37...Be7+= 38.Nf7 Kf7 39.Qd2 Qc8 40.Qh6 Qg8 41.h5 Bf8? (better 41...Nf8!?+=) 42.hg6 Qg6? (better 42...hg6 43.Be6 Ke6+-) 43.Be6 Ke6 44.Qf8 Qe4 45.Qd6 (45.Qe8 Kf5 46.Nh4 Kg5 47.Qg8 Kh6 48.Qf8 Kg5 49.Qg7 Qg6 50.Ng6 Kf5 51.f3 Ke6 52.Qg8 Kd7 53.Qf7 Kd8 54.Qf8 Kc7 55.Qd6 Kb7 56.Qd7 Kb8 57.Ne7 e4 58.Nc6 Ka8 59.Qc8) 45...Kf7 46.Qd7 Kf8 47.Nh4 Qb1 48.Kh2 Qb2 (48...Qc2 49.Qc6 Qf2 50.Ng2+-) 49.Qd8 (49.Kg2 Qb3 50.Qc6 Qf7+-) 49...Kf7 50.Qd7 Kf8 51.Qf5 (better 51.Kg2 Qb3 52.Qc6+-) 51...Qa3 (51...e4 52.Qe4 Qf2 53.Ng2 Qf1+-) 52.Qf6 Ke8 (52...Kg8 53.Nf5 Qg3 54.Kg3 e4 55.Qg7) 53.Qc6 (53.Nf5 Qg3 54.Kg3 Kd7 55.Qe7 Kc8 56.Nd6 Kb8 57.Qb7) 53...Kf7+- 54.Qd7 Kf6 55.Qf5 Ke7 56.Qe5 Kf7 57.Qd5 Kf6 58.Qd6 Kf7 59.c6 Qb2 60.Qf4 Ke6 61.c7 (better 61.Qf5 Kd6 62.Qd7 Ke5 63.Qg7 Kd6 64.Qb2 Kc6+-) 61...Kd7 62.Nf5 Qf6 63.c8Q! Kc8 64.Qe4 (better 64.Nd6 Qd6 65.Qd6+-) 64...Kd7 (64...Kc7 65.Qd5 a3 66.Qc5 (66.Qb5?! a2 67.Qc5 Kd8 68.Qd5 Ke8 69.Nd6 Ke7 70.Nc8 Kf8 71.Qa2 Qh6 72.Kg2 Qc6 73.f3 Qc8+-) 66...Kd8 67.g4+- (67.Qb5?! a2 68.Qd5 Ke8 69.Nd6 Kf8 70.Qa2 Qd6+-)) 65.Qd5 Ke8 (65...Kc7 66.Qb5 Qb6 67.Qe5 Kd7 68.Qe7 Kc6 69.Qe8 Kc7 70.Ne3 Qh6 71.Kg1+-) 66.Qb5 Kf7 67.Qd5 (67.g4 h5 68.Qa4 Qe5 69.Kg2 hg4 70.Nh6 Ke7 71.Qa7 Ke8 72.Qa8 Kd7 73.Ng4 Qb5+-) 67...Kg6 (67...Qe6 68.Qb7 Kg6 69.Nh4 Kh6 70.Qa8+-) 68.Nh4 (better 68.g4 Qf7 69.Qc6 Qf6 70.Qa4 Kg5+-) 68...Kg7 69.b5 (better 69.Kg2!? Qf7 70.Qc6 Qb3 71.Nf5 Kf7 72.Qb7 Kf6+-) 69...Qf2 70.Ng2 1-0. bjoern (2135) - Petrovich63 (2095), Rated Blitz game, lichess.org, 2014.

8.Nbd2 e5 9.c5 Bc7 10.e4 (10.Be2 a5=+) 10...de4 11.Ng5 Bg6 12.Nge4 0-0 13.Be2 Ne4 14.Ne4 a5 15.a3 Bf5 16.0-0 Be6 17.Qc3 Nf6 (better is 17...f5!? 18.Nd6 Bd6 19.cd6 ab4 20.ab4 Qg5=+) 18.Nf6+= Qf6 19.f4 ef4 (19...Qf4 20.Rf4) 20.Qf6 gf6 21.Bf6 Bd5 22.Rab1 Rfe8 23.Bg4 Be6 (23...ab4 24.Rb4 Ra3 25.Rb7=+) 24.Bf3 Bf5 25.Rfd1 Re6 26.Bh4 Be5 27.b5 Rae8 28.bc6 bc6 29.Bf2 Rd8 (Exerts pressure on the backward pawn) 30.Rb6 Rg6 (30...Rd3!? 31.Rd3 Bd3 32.Bc6 Bc7+/–) 31.d4+– (< 31.Rc6 Rc6 32.Bc6 Rd3 33.Rd3 Bd3+/–) 31...Bg4 32.Rc6 Bf3 33.Rg6 fg6 34.gf3 Rd5 35.Kf1 (35.de5? Rd1 36.Kg2 Kf7–+) 35...Kf7 36.Ke2 (36.de5? Rd1 37.Ke2 Rd5–+) 36...Ke6? (36...Bc7 37.Kd3+–) 37.Kd3 (better is 37.de5!? Rd1 38.Kd1 Ke5+–) 37...Bc7 38.Kc4 Rh5 39.d5 (39...Kd7 40.c6 Kd8 41.Bd4+–) 1–0. Calvello – Santoro, 1987.

7.d4 Be7

8.Nbd2 0-0 9.Be2 Ne4 10.Ne4 Be4 11.c5 Qc7 12.0-0 Bf6 13.Nd2 Bg6 14.f4 Be7 15.g4 Nf6 16.Qd1 h6 17.f5 Bh7 18.Bd3 ef5 19.gf5 Rae8 20.Qf3 Kh8 21.Kh1 Rg8 22.Rg1 g5 (22...b6 23.a3=) 23.fg6 Bg6 24.Bg6 (24.e4 de4 25.Ne4 Nd5=) 24...fg6 25.Rae1 Ref8 26.Qh3 Kh7 27.Qe6 (27.Bc1 Nh5=) 27...Qd7 (27...Bd8 28.Ref1+=) 28.Qd7= Nd7 29.e4 Bg5 30.Rg2 Bd2 31.Rd2 Nf6 32.e5 Ne4 33.Rde2 Rf3 34.Re3 Rf2 35.R1e2 (35.R3e2!?=) 35...Rgf8+= 36.Kg1?? (36.Ba3+=) 36...Re2?? (better is 36...Rf1 37.Kg2 R8f2 38.Rf2 Rf2 39.Kg1 Rb2–+) 37.Re2= Kg7 38.Kg2 Kf7 39.Rc2 Ke7 40.Bc1 g5 41.Be3 a6 (41...Ke6 42.a3=) 42.a4 h5 43.Rc1 g4 44.b5 (44.Rf1!?=) 44...ab5+= 45.ab5 Rf3 46.Bg1 (46.bc6 bc6 (46...Re3 47.cb7 Re2 48.Kh1+=) 47.Re1 h4–/+) 46...Rb3–/+ 47.bc6 Rb2 48.Kf1 (better is 48.Kh1 g3 49.h4+=) 48...bc6–+ 49.Ra1 Nd2 50.Ke1 Nf3 51.Kf1 Nh2 (better is 51...Ke6!? 52.Bf2 Nh2 53.Kg2 h4–+) 52.Bh2–/+ Rh2 53.Ra6 (53.Ra7 Ke8–/+) 53...Kd7 (53...Rd2!? 54.Rc6 h4 55.Rc7 Ke6 56.Rh7–+) 54.Ra7–/+ Kd8 (54...Ke6 55.Rc7 Kf5–/+) 55.e6?? (better is 55.Ra8 Kc7 56.e6 Rh1 57.Kf2 g3 58.Kg3=) 55...Rd2 56.e7 (56.Rh7 Rd4 57.Rh5 Rc4–+) 56...Ke8 57.Rc7 Rd4 (57...h4 58.Rc6 Ke7 59.Rh6–+) 58.Rc6 Ke7 59.Rh6 Rf4 (59...Kd7 60.Kg2–+) 60.Kg2 Rf5 61.Rh7 Kd8 62.c6 Kc8 63.Kg3 (63.Rg7 d4–+) 63...Rf3 (better is 63...d4!? 64.Kg2–+) 64.Kg2 Rf5 65.Kh2?? (65.Kg3 d4 66.Kg2–+) 65...Rf2 (better is 65...d4 66.Rd7 Rf2 67.Kg1 Rf4–+) 66.Kg3–/+ Rf3 67.Kg2 Rf5 68.Kg3 d4 69.Rd7 Rc5 (better is 69...Rf3!? 70.Kh4 d3 71.Kh5–+) 70.Rd4 Rc6 71.Kh4 Rc5 72.Rd6 Kc7 73.Rg6 Kd7 74.Rh6 Ke7 75.Rg6 Kf7 76.Rh6 Kg7 77.Rd6 Rf5 78.Ra6 Rf6?? (better is 78...Rd5–+) 79.Ra5= Rf3 80.Rg5 (80.Rh5 g3=) 80...Kf6 81.Rh5 g3 82.Kh3 Kg6 ½–½. Reschke,Heiko – Schoenrock,Ruediger, Mecklenburg VP LL1, 1998. (=1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.b4 Bf5 5.Qb3 e6 6.Bb2 Nbd7 7.d4 Be7)

8.Nbd2 Ne4 9.Ne4 Be4 10.Nd2 Bg6 11.c5 0-0 12.Bd3 Bd3 13.Qd3 Qc7 14.0-0 e5 15.e4 de4 16.Ne4 f5 17.Qb3 Kh8 18.Nd6 Bd6 19.cd6 Qd6 20.de5 Qe7 (20...Ne5? 21.Qc3+–) 21.f4 h6 22.Rad1 Kh7 23.Rd6 Rfd8 24.Qd3 Nf8? (better is 24...Nb6+–) 25.Qf5 g6 (25...Kg8 26.Qd3 Rd6 27.ed6 Qf7+–) 26.Qd3 Rd6 27.ed6 (27.Qd6?! Qd6 28.ed6 Re8+–) 27...Qf7 (27...Qd7+–) 28.f5 Qa2 29.Qc3 Qg8 (29...Qb2 30.Qb2 Kg8 31.fg6 Rc8 32.Qf6 Nd7 33.Qf7 Kh8 34.Qh7) 30.Re1 1–0. Tshugaevsky,Panteley (1800) – Kauzky,Hartmut (2030), IBCA Wch blind, 2002. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.Qb3 Nbd7)

7.Be2 a5

8.ba5 dc4 9.Bc4 Qa5 10.Bf6 gf6+= (worse is 10...Nf6 11.Qb7 Be4 12.Nc3 Bf3 13.gf3+/–).

8.a3 ab4 9.ab4 Ra1

10.Ba1 Qb6 11.b5 Nc5 12.Qb2 (12.Qa2 dc4 13.Bf6 gf6 14.Bc4 cb5–/+) 12...Nd3 (12...dc4 13.Bc4 Bd3 14.Na3–/+) 13.Bd3+= Bd3 14.Nc3 (14.cd5 Nd5 (worse is 14...Bb5 15.de6 fe6 16.Nc3+=) 15.bc6 Nb4 (15...Bb1 16.cb7 Bd6 17.Qb6 Nb6 18.Bg7–/+; worse is 15...Qc6 16.Ne5 Qc2 17.Nd3 Qd3 18.Qb7+=) 16.cb7 Qb7–/+) 14...dc4 15.Ne5 Bd6 (15...Qc7 16.Nd3 cd3 17.bc6 bc6 18.Na2–/+) 16.Nd3+= cd3 17.Qb1 0-0 18.Qd3 Rd8 (18...Be5 19.0-0+=) 19.Qb1 (19.Qc4 Qc7+=) 19...Bb8 (19...Bc7 20.Qb2+=) 20.Qb2 (20.f4+=) 20...Qc5 (20...cb5 21.Nb5 Qa5 22.Nc3+=) 21.0-0 (21.Ne4! Qc4 22.Nf6 gf6 23.bc6 bc6 24.Qc3=) 21...Qd6+= 22.g3 e5 23.bc6 bc6 24.Qb3 (24.Rd1 Qd3+=) 24...h5 (24...Qd3 25.Qb6+=) 25.Qc4 Qd7 (25...Bc7 26.Rb1=) 26.Kg2 (26.Rb1 Qd2 27.Qc6 Qd6=) 26...Qf5 Black intends e4 (26...c5 27.Rd1=) 27.Qc6 e4 (27...Rd2 28.Qa8 Rd8 29.Rd1=) 28.Qb5 (28.Nb5 Qf3 (worse is 28...Rd2 29.Bf6 Qf6 30.Qe8 Kh7 31.Qb8+–) 29.Kg1 h4=) 28...Qf3+= 29.Kg1 h4 30.Qe2 (30.Rd1 Ng4 31.Qe2 Qe2 32.Ne2 g5=) 30...Qf5 (30...hg3 31.fg3 Qe2 32.Ne2 Rd2 33.Bf6 Re2 34.Bd4+=) 31.f3 (31.Nb5 Qg4 32.Qg4 Ng4+=) 31...hg3+= 32.fe4? (32.hg3 Qh3 33.Nb1+= (worse is 33.fe4 Qg3 34.Kh1 Qh4 35.Kg1 Qg5 36.Qg2 Qg2 37.Kg2 Rd2 38.Kf3 g5–+)) 32...gh2–+ 33.Kh1 Qg6 34.d3?? (34.Qf3 Nh5 35.Qf7 Qf7 36.Rf7 Kf7 37.d4–+) 34...Nh5 (34...Nh5 35.Qg2 Ng3 36.Kh2 Nf1 37.Kg1 Qg2 38.Kg2 Ne3 39.Kf3 Nc2–+) 0–1. Markov,Slobodan (2160) – Popovic,Milos T (2400), Vojvodina–chT, 2008.

10.Ba1 Qb6 11.Bc3 Bb4 12.Qb4 Qb4 13.Bb4 Bb1 14.0-0 Bg6 15.Ra1 Nb6 16.c5 Nc8 17.Ra8 Kd7? (17...0-0 18.Rb8+=) 18.Ba5 (18.Ne5 Kd8 19.Ba5 Ke7+-) 18...Ne4 (18...Ke7 19.Rb8 Bh5 20.Rb7 Ke8 21.d4+/-) 19.d4 Re8 20.Rb8 Ke7 (20...Ncd6 21.Ne5 Ke7 22.cd6 Nd6 23.Re8 Ke8 24.Bb4+-) 21.Rb7 Kf8 22.Ne5 Ne7 23.f3 (23.Ng6?! fg6 24.Ra7 Rb8+/-) 23...Ng5 (23...Nf6+-) 24.h4 (24.Ng6?! Ng6 25.Bc7 f6+/-) 24...f6 (24...Nf3 25.gf3 f6 26.Nd7 Kg8 27.Nb8+-) 25.Ng6 (25.Ng6 Ng6 26.hg5 fg5 27.Bd3+-; 25.hg5?! fe5 26.Bc7 ed4 27.ed4 Nc8+-) 1-0. Mely (2280) - Astrochess (1995), ChessWorld.net, 2016.

10.Ba1 Qb6 11.Bc3 Nc5 12.Qa2 dc4 13.Bc4 Nd3 14.Bd3 Bd3 15.Qa8 Qd8 16.Qd8 Kd8+=.

10.Ba1 dc4 11.Bc4 Be4 12.Bc3+=.

7.Be2 dc4

8.Bc4 Nb6 9.0-0 =+.

8.Bc4 Nb6 9.Be2 Qd5 10.Qd5 cd5 11.a3 Bd6 12.Nc3 a6 13.Nd4 (13.Nh4 Bc2=) 13...Bg6=+ 14.h4 h6 (14...Nc4 15.Bc1 e5 16.Nf3–/+) 15.Nb3 (15.d3 e5 16.Nf3 Rc8=+) 15...Nc4–/+ 16.Bc1 Ne5 (16...Rc8!?–/+) 17.Na4 0-0 18.f4 Nd3 (18...Nc6 19.Nac5 b6 20.Nb7–/+) 19.Bd3= Bd3 20.Nac5 Bc4 21.d3 (21.Nb7!? Bf4 22.ef4 Bb3 23.Nc5+=) 21...Bb3= 22.Nb3 Rfc8 ½–½. Mandak,P – Erban,Tomas, CZE–chTJ, 1999.

7.Be2 Bd6

8.0-0 0-0 9.Nc3 dc4 10.Qc4 e5 11.d3 =+.

8.0-0 0-0 9.Nc3 Bg6 10.cd5 (10.c5 Bc7=) 10...ed5 11.d4 (11.Rfc1 Re8=) 11...b5 (11...Re8!?=+) 12.a4+= a6 (12...ba4 13.Qa4 Qb6 14.Ba3=) 13.Ra2 (13.Rfc1 Qe7=) 13...Qe7= 14.Rfa1 Rac8 15.ab5 ab5 16.Ra7 Rc7 (16...Bb4 17.Ba3 Ba3 18.R1a3–+) 17.Rc7 Bc7 18.Ra7 Qd6 19.g3 Nb6 (19...Bb6 20.Ra6=) 20.Nh4 Nc4 21.Bc1 (21.Ng6 fg6 22.Kg2 Ne8=) 21...Bb6 22.Ra6 (22.Ng6 fg6 23.Ra6 Qe7=) 22...Rb8 (22...Bh5 23.Bh5 Nh5 24.Nf5=+) 23.Ng6 hg6 (23...fg6 24.Qb1=) 24.Kg2 Qf8 (24...Re8 25.h3=) 25.Bd3= Ne8 (25...Ra8 26.Ra8 Qa8 27.h3+=) 26.Ne2 (26.Ra1 Nf6+=) 26...Nc7 27.Ra2 Ra8 28.Ra8 Qa8 29.Qb1 Ne6 30.h4 Bc7 31.f4 Bd6 (Black gets the initiative) 32.f5 gf5–/+ 33.Bf5 Nf8 34.e4=+ Qa4 35.ed5= Qd1 36.Bd3 cd5=+ 37.Nf4 Qe1 38.Qc2 Ne6 39.Nd5?? Qg3–+ 40.Kh1 Qh4 (41.Kg1 Qd4 42.Kf1 Qd5 43.Bh7 Kf8–+) 0–1. Langen,Roger – Kapstan,Aron, Philadelphia op, 1993.

8.0-0 0-0 9.c5 Bb8 =.

8.0-0 0-0 9.c5 Bc7 10.d4 h6 (10...Ne4 11.Nc3=) 11.Nbd2 Re8 12.a4 e5 13.de5 Ne5 14.Ne5 Be5 15.Be5 Re5 16.Nf3 Re8 17.Nd4 Bg6 18.b5 Rc8 19.Rfc1 Qe7 20.Qb4 Ne4 21.Bd3 Rf8 (21...Qf6 22.Rc2=) 22.Rc2 (22.bc6 bc6 23.Rc2 Qh4=) 22...f5 (22...Rfe8 23.Qa5+=) 23.Rac1 Kh7 24.a5 f4 25.ef4 ½–½. Kozlowski – Szczepaniak,Alicja, corr 1. AMM Poland, 1991.

8.0-0 dc4 9.Bc4 Nb6 10.d3 =.

8.0-0 h6 9.Nc3 0-0 10.a4 Rc8 (better 10...a5!? 11.b5 Nc5=+) 11.c5 Bb8 12.a5 a6 13.Na4 Qc7 14.g3 Qd8 15.Nb6 Nb6 16.ab6 Qe7 17.Ne5 Nd7 18.f4 Nf6 19.Bf3 Rcd8 20.Rad1 Rfe8 21.Kg2 Be4 22.d3 Bf3 23.Nf3 Rf8 24.Be5 Nd7 25.Ba1 e5 26.f5 e4 27.de4 Qe4 28.f6 g6 29.Rd4 Qe6 30.Rh4 h5?? (better 30...Be5 31.Be5 Ne5+=) 31.Ng5 Qe8 32.Qc2 (32.Bd4 Be5 33.Qd3 Bd4 34.ed4+- (worse 34.Rd4 Ne5 35.Qe2 Nc4=+; worse 34.Qd4 Qe5 35.Qe5 Ne5=+)) 32...Ne5?? (better 32...Be5 33.Bd4 Bd4 34.ed4 Qe3 35.Rh5 Rde8+-) 33.Rh5 Qd7 (33...d4 34.Rf4 Nf3 35.Rf3 Rd5 36.Bd4 Re5+-) 34.Rf4 Nc4 35.Qg6!! fg6 (35...fg6 36.f7 Mate attack) 36.f7 Rf7 37.Rh8 1-0. carlos78 (2265) - bigticket5 (2140), Rated Blitz game, lichess.org, 2015.

8.cd5 cd5 9.Nc3 0-0 =+.

6.Qb3 Be7

7.a3 0-0 8.Be2 Nbd7 9.Nc3 Qc7 (9...dc4 10.Qc4 e5 11.0-0=+) 10.Nh4 (10.cd5 ed5 11.Rc1 Qd6=) 10...Bg4=+ 11.f3 (11.cd5 ed5 12.Bg4 Ng4=) 11...Bh5 12.g4 (better 12.0-0!?=+) 12...Ng4-/+ 13.fg4 Bh4 14.Kd1 Bg6 15.cd5 ed5 16.Rc1 Qd6 17.Na4 (17.b5 Bf6-+) 17...Be4 18.Rg1 (18.Rf1 Qh2 19.b5 Bg2 20.bc6 Bf1 21.Bf1 bc6-+) 18...Qh2 19.Rf1 Bg2 20.Kc2 (20.Rf4 Bg3 21.Rd4 Be5-+) 20...Bf1 21.Bf1 Bf6 22.Bd3 (22.Nc5 Bb2 23.Qb2 Nc5 24.bc5 b5-+) 22...Bb2 23.Qb2 Ne5 24.Nc5 b6 25.Nb3 Ng4 26.Qd4 Ne5 27.Bf5 (27.Qa1 Nd3 28.Kd3 Rac8-+) 27...g6 28.Bd3 (28.Qf4 Qf4 29.ef4 Nc4-+) 28...Rae8 (28...a5!? 29.Rf1-+) 29.Rf1 Nd3 (29...Qg2 30.Kd1-+) 30.Qd3 Qg2 31.Nd4 (31.Rf6-+) 31...c5 32.Nf3 (32.Nf5 cb4 33.Nd4 Re3 34.Qe3 Rc8 35.Kb3 Qf1 36.ab4-+) 32...c4 33.Qd4 (33.Qd5 Qf1 34.Nh4 Rd8-+) 33...Qf1 34.Ng5 0-1. carlos78 (2155) - shepcanop (2430), Rated Blitz game, lichess.org, 2014.

7.a4 0-0 8.d4 Nbd7 9.c5 Ne4 10.Nc3 Re8 11.Be2 Bf6 12.0-0 Qc7 13.Ne4 Be4 14.b5 e5 15.a5 ed4 16.Bd4 Bd4 ½–½. Krannich,Sven (1875) – Schulz,Hartmut (2145), Berlin Lichtenberger op 7th, 2008.

7.d4 0-0 8.Nbd2 Ne4 9.Be2 Nd7 10.0-0 Ndf6 11.h3 g5 (11...Qc7 12.b5+=) 12.g4 (12.Rfd1 a5 13.ba5 Qa5 14.Qb7 Rfb8 15.Qe7 Ra7=) 12...Bg6+= 13.Rad1 (13.b5 Bd6+=) 13...Bd6 (13...a5 14.ba5 Qa5 15.a3–/+) 14.Ne5 (14.c5 Bc7=) 14...Nd2+= 15.Rd2 Ne4 16.Rdd1 f6 (16...a5 17.a3+=) 17.Ng6= hg6 18.Bd3 f5 19.f3 Ng3 20.Rf2 Qe7 21.Kg2 (21.b5 Kg7 22.gf5 ef5 23.cd5 cb5 24.Qb5 Rh8–/+) 21...Rad8 (21...fg4 22.hg4 Qh7–+) 22.b5+= Qh7 (22...Kg7!?+=) 23.Ba3+= Qh4 24.Bd6 Rd6 25.gf5 (25.bc6 bc6 26.cd5 ed5+= (26...Rd5? 27.Qb7+–)) 25...gf5 (25...ef5 26.bc6 bc6 27.Rc1+=) 26.Kg1 (26.bc6 bc6 27.Rc1 Rd7+=) 26...Rd7 (26...f4 27.e4 g4 28.Qb4+=) 27.Rh2 (27.bc6 bc6 28.Qa4 A) 28...Qh3?? 29.Rh2 Ne2 30.Be2 (30.Re2?! Rh7 31.Rg2 g4 32.Qc6 Qh1 33.Kf2 Qd1 34.Qe6 Rff7 35.Qe8 Kg7 36.Qe5 Rf6 37.Qe7 Rf7 38.Qe5 Kf8 39.Qb8 Kg7 40.Qe5=) 30...Qg3 31.Rg2+–; B) 28...Rh7=) 27...Rh7 (27...Qh5 28.Rf2+=) 28.Rdd2 (28.Qa3 e5 29.cd5 A) 29...ed4 30.dc6 de3 31.Qc5 bc6 32.Bc4 (32.bc6 e2 33.Bc4 Rhf7 34.Bf7 Kf7 35.Qd5 Kg6 36.Qe6 Rf6 37.Qe8 Kh6+–; 32.Qe3?! cb5 33.Bb5 Qb4 34.Qe6 Kh8 35.Qe5 Rg7+=) 32...Rhf7 33.Bf7 (worse is 33.bc6 e2 34.Bf7 Rf7 35.Rd8 Kh7+–) 33...Rf7 34.Qe3+–; B) 29...e4 30.dc6 ed3 31.Qd3 Rc8 32.Qb3 Rf7+–) 28...Rhf7+= 29.bc6 bc6 30.cd5 cd5 31.Rdg2? (31.Rd1 Qh5 32.Re1 Qf3–/+) 31...Ne4?? (better is 31...f4 32.Bc2 Nf5–+) 32.Qb1 (32.fe4 Qe1 33.Bf1 fe4 34.Rg5 Kh7 35.Rh5 Kg6 36.Rg5 Kg5 37.Qd5 ed5 38.Rg2 Kh6 39.Kh2 Rf1 40.Rg1 Rg1 41.h4 Qg3) 32...Nf6 33.Kh1 Kh8 34.Rg4 Qh5 35.h4?? Rh7?? 36.Bf5? ef5–+ 37.Qf5 gh4 38.Rg5? Qe8–+ 39.Qf4? h3 40.Rf5?? Qb5 41.Rg5 Nd7 42.Qf8 Nf8 43.e4 Qf1 0–1. Lunin,Mikhail – Ibragimov,Ali, Zhukovsky Championship A, 2010.

7.Be2 dc4 8.Qc4 b5 9.Qd4 =+.

7.Bf6 Bf6 8.d4 0-0 =.

7.Nc3 0-0

8.d4 a5 9.c5 (9.ba5!? Nbd7 10.Nh4= (10.Qb7 Rb8 11.Qc6 Rb2–+)) 9...ab4 10.Qb4 Nbd7 11.Qb3 (11.Qb7? Rb8 12.Qc6 Rb2–+) 11...Qa5 12.Nd2 (better is 12.Nh4!?=) 12...b6–/+ 13.cb6 Rfb8 14.Qd1 Ba3 (14...Qb6!? 15.Nb3 Qb4–/+) 15.Ba3=+ Qc3 16.Bd6 Rb6 17.Rc1 Qb2 18.a3 e5 19.de5 Ne5 (19...Ne8 20.Bb4 Qe5 21.Nf3=) 20.Bc5 Nd3 (20...Nfd7!? 21.Bd4 Qa3=) 21.Bd3+/– Bd3 (Black is in command) 22.Bb6 Qb6 23.Qb3 Qa6 24.f3 Bb5 25.Kf2 Nd7 26.Ra1 (26.Rc3 Qa7 27.Qb4 Ne5+/–) 26...Nc5+= 27.Qc3 Nd3 28.Kg3?? (better is 28.Kg1=) 28...c5–+ 29.h3? (better is 29.f4 Qg6 30.Kf3–+) 29...d4! 30.Qb3 (30.ed4 Qd6) 30...c4 (30...Qd6 31.f4 de3 32.Rhf1–+) 31.Qd1 de3 32.Ne4 f5 33.Qe2 Qg6 34.Kh2 Nf4 35.Qb2 fe4 36.g3 Nh5 37.Qe5 Re8 38.Qd5 Kh8 39.g4 ef3 40.Qh5 Qd6 41.Kg1 Qg3 (42.Kf1 Qf2) 0–1. Kordsachia,Tariel – Clemens,Christian, Hamburg Favoriten, 1980.

8.d4 Nbd7 9.Rc1=+.

8.d4 Ne4 9.a4 Nd7 10.b5 h6 (10...Rc8 11.Ne4 Be4 12.Rc1=+) 11.Be2 Bh7 (11...dc4 12.Bc4 cb5 13.Bb5 Nc3 14.Bc3= (worse 14.Qc3 Rc8 15.Qb3 Bc2-/+)) 12.0-0 f5 (12...Rc8 13.Rfc1=) 13.Rfe1 f4 14.Rad1 (14.ef4!? Rf4 15.a5+=) 14...fe3= 15.fe3 Ndf6 16.Ne5 Nc3 (16...cb5 17.Qb5 Bd6 18.Rf1= (18.Qb7? Rb8 19.Qa7 Rb2-+; 18.cd5?! Nc3 19.Bc3 Nd5=+)) 17.Bc3 Ne4 (17...Qc7 18.Rc1=) 18.Bb2 (18.bc6!? bc6 19.Nc6+=) 18...Bg5 (18...Qc7 19.Ba3 Bd6 20.Bd6 Qd6 21.bc6 bc6 22.Qb7+=) 19.Bf3 (19.Ba3 cb5 20.ab5 Rf6+=) 19...Bf6 20.bc6 Be5 21.cd5?? (21.cb7 Bh2 22.Kh2 Qh4 23.Kg1 Qf2 24.Kh2 Qg3 25.Kg1-+) 21...Bh2!-+ (21...Qd5?! 22.Qd5 ed5 23.de5 bc6 24.Bd4=; 21...ed5?! 22.cb7 Bh2 23.Kh2=+) 22.Kh2 (22.Kf1 Qh4 23.Ke2 Qf2 24.Kd3 Nc5 25.Kc3 Nb3 26.Re2-+) 22...Qh4 23.Kg1 Rf3! 24.de6 (24.gf3 Qg3 Mate attack) 24...Qf2 25.Kh2 (25.Kh1 Rh3!! 26.gh3 Ng3) 25...Rh3!! 26.Kh3 (26.Kh3 Qg3 Mate attack) 26…Qg3 0-1. ClayPigeons (2200) - arti17 (2365), Rated Bullet game, lichess.org, 2020.

7.Be2 0-0

8.0-0 Nbd7 9.Nc3 Qb6 10.c5 Qc7 11.h3 h6 12.d4 Ne4 13.Qd1 Ndf6 14.Bd3 Rfd8 15.Qc2 Bh7 16.a4 b6 17.Ba3 bc5 18.bc5 Rdb8 19.Rfb1 Qa5 20.Na2 Qc7 21.Ne5 a5? 22.Rb8 Rb8= 23.Rb1 Nd7 24.Nd7 Rb1 25.Qb1 Qd7 26.Qb8 Bd8 27.Bc1 g5 28.Ba6 Kg7 29.Qc8 Qe7 30.Qc6 g4 31.hg4 Qh4 32.g3?? Ng3! 33.fg3 Qg3 34.Kf1 Bh4 0–1. Weigel,Hans Juergen (1910) – Gretzer,Otmar (2165), GER–chT Seniors, 2002.

8.0-0= Nbd7 9.Nd4 Bb1 10.Rab1 (10.Rfb1 dc4 11.Qc4 Ne5=) 10...Ne4 (10...dc4 11.Bc4 e5 12.Nf5+=) 11.Rbd1 (11.Nf3 dc4 12.Qc4 Nef6+=) 11...Qc7 12.d3 Nef6 13.f4 a6 14.a3 Rad8 15.c5+= Rfe8 16.Rf3 b6 17.cb6 Qb6 18.Qa2 c5= 19.bc5 Bc5 20.Rb1 Rb8 21.Rff1 Qd6 22.g4 h6 23.Qa1 Rb7 24.Bc3 Rb1–/+ 25.Rb1 Rb8 26.Rb8= Qb8 27.Qb2 (27.g5 hg5 28.fg5 Nh7=) ½–½. Richter,Sergio (2200) – Paul,Peter, Oberliga Ost–B, 1996.

8.0-0= Nbd7 9.Nd4 Bg6 10.Nc3 =.

6.b5 cb5

7.cb5 a6 8.Nc3 ab5 9.Nb5 Bc5 10.a4 (10.Bf6 gf6 11.Rc1 Qe7=) 10...0-0 11.Be2 Be4 12.0-0 h6 (12...Nc6 13.d3 Bf3 14.Bf3=) 13.Ne5 Nbd7 14.Nd7 Nd7 15.Bf3 Qh4 16.Be4 Qe4 (16...de4 17.f3=) 17.Qf3 (better 17.d4!? Be7 18.Ba3=) 17...Qf3=+ (worse 17...Ra4 18.Qg3 e5 19.Be5+–) 18.gf3 f6 (18...Rfc8 19.Rfb1=+) 19.f4 (19.Nc7 Rac8 20.Ne6 Rfe8+–) 19...e5 (better 19...Rfc8!?=+) 20.fe5 Ne5 (20...fe5 21.Nc7 Rac8 22.Nd5+–) 21.Nc7 (21.d4 Nc4 22.Nc7 Bb4 23.Nd5 Ra5+–) 21...Rac8 (21...Nf3 22.Kg2 Nd2 23.Rfd1+=) 22.Nd5 Nf3 23.Kh1 (23.Kg2 Nd2 24.Rfd1 Nc4+=) 23...Nd2 (23...Rfd8 24.d4 Rd5 25.Rfc1=) 24.Rfd1 Ne4 25.Ba3?? (better 25.Kg2=) 25...Nf2 26.Kg2 Nd1 27.Rd1 (27.Bc5 Rc5 28.Rd1–+) 27...Ba3 28.Rd3 (28.Kf3 Rc2 29.Rd3 Bc5–+) 28...Rc2 29.Kh3 (29.Kf3 Bc5 30.h3–+) 29...Kh8 (better 29...Bd6 30.Nb6 Bh2–+) 30.Ra3 Rd8 31.Nf4 (31.Nb4 Re2 32.Kg3 Rdd2–+) 31...Rdd2 32.Rb3 Rh2 33.Kg4 Rc4 34.Kf5 (34.Rb7 Ra4 35.Kg3 Rha2–+) 34...Rf2 (better 34...Kh7!? 35.Rb7 Ra4 36.Kg4–+) 35.Kg6 Ra4 (35...Rcf4!? 36.ef4 Rf4 37.Rb7 Rg4 38.Kh5 Ra4 39.Kg6 Rg4 40.Kh5 Rg5 41.Kh4–+) 36.Rb7 Ra3?? (better 36...Rg2! 37.Ng2 Rg4 38.Kf5 Rg2–+) 37.Rb8 1–0. Abdullaevich (1875) – Oboitshepo, lichess.org, 2020.

7.cb5 Bb1 8.Qb1 Bd6 9.Be5 (9.Bd3 Nbd7=) 9...Be5 10.Ne5 Nbd7 11.Nd7 Qd7 12.Qb2 0-0 13.Be2 Rac8 14.0-0 Rc7 15.Rfc1 Rfc8 16.Rc7 Qc7 17.Bd3 Ng4 18.g3 (18.f4 Nf6=) 18...Ne5+= 19.Be2 Nd7 (19...Nc4 20.Qc3+=) 20.Kf1 (20.d4 Nb6=) 20...b6 (20...Nb6 21.d4+=) 21.d4= Nf6 22.f3 h5 (22...Ne8 23.Bd3=) 23.Bd3 h4 24.g4 (24.gh4 Ne8=) 24...g5 (24...Ne8 25.Qf2 Qe7 26.Kg1=) 25.Ke1 (25.Qd2 Nd7+=) 25...Ne8 26.Kd1 Nd6 27.Rc1 Nc4 28.Qe2 Qd6 29.Bc4 dc4 30.Qd2 c3 31.Qf2 (31.Rc3 Qb4 Double attack (31...Qb4 Decoy)) 31...e5 32.Kc2? (better is 32.Ke1–+) 32...ed4 33.ed4 Qa3 (better is 33...Qg6 34.Kb3 Qe6 35.Ka3 Qd6 36.Kb3 Qd5 37.Ka3 Qb5 38.Qe2 Qe2 39.Ra1 Qb2 40.Ka4 Rc4) 34.Kd1 Qa4 35.Ke1? (35.Rc2 Rd8 36.Ke1 Qb5 37.Rc3 Qb1 38.Kd2 Qa2 39.Rc2 Qa1–+) 35...Qb5 (35...Re8 36.Kf1 Qb5 37.Kg1–+) 36.Qc2 Qc4 (better is 36...Qd5 37.Qf5 Qf5 38.gf5 Kg7–+) 37.Qf5?? (better is 37.Rd1–+) 37...Re8 38.Kf2 Qe2 39.Kg1 Qe3 0–1. Turcot,Jean – Lessard,Claude (1945), Charlesbourg Millenium op, 2004.

7.cb5 Nbd7+= 8.Be2 (8.Nc3 Rc8+=) 8...Bd6 (8...Rc8 9.0-0=) 9.0-0 (9.Nh4 Bb1 10.Rb1 Qa5=) 9...Qc7 (9...e5 10.Nc3=) 10.d4 (10.Nc3 e5=) 10...Be4 (10...0-0 11.Ba3+=) 11.Nbd2= 0-0 12.Rc1 Qa5 13.Qb3 Rac8 14.a4 (14.Ne4 Ne4 15.Bd3 Ndf6=) 14...Bb4 (14...Nb6 15.Ba3 Ba3 16.Qa3 Qa4 17.Qb2 Rc1 18.Rc1 Bf3 19.Nf3+=) 15.Rfd1 (15.Ne4!? Ne4 16.Bd3=) 15...Nb6 16.Ne4 Ne4 (16...de4 17.Ne5–/+) 17.Ra1 (17.Rc8 Rc8 18.Ra1 Bc3+=) 17...Nc3 Increases the pressure on a4 18.Bc3 (18.Rd2 Nca4 19.Rdd1 Bd6+=) 18...Rc3–/+ 19.Qa2 (19.Qb1 Rfc8–/+) 19...Ra3 20.Qb1 (20.Qb2 Ra4 21.Rdc1 Ra8–/+) 20...Qa4 (20...Na4 21.Ra3 Ba3 22.Ng5–/+) 21.Qb2 (better is 21.Rc1+=) 21...Qb3 (better is 21...Rc8 22.Ra3 Ba3–/+) 22.Qb3+= Rb3 23.Ra7 Rb8 24.Ne5 (24.Rda1 Bc3 25.Rc1 Nc8+=) 24...Rb2 (24...Bd6 25.Kf1=) 25.Bf1 (25.Bd3 Bd6=) 25...Bd6 26.Nd3 (better is 26.Rc1!?=) 26...Rb5–/+ 27.Nc5 (27.Rda1 Nc4–/+) 27...Nc4 28.Ne4 Bf8 29.Rda1 (29.Nd2 Rb4–/+) 29...Rb4 (29...Rc8 30.Ng3–/+) 30.Ng5 (30.Bc4 Rc4 31.Ng5 Bd6–/+) 30...Nd2 (30...h6 31.Nf3–/+) 31.Bd3 (31.R1a2 Nf1 32.Kf1 Bd6–/+) 31...g6 (31...h6 32.Nh3–/+) 32.Rd1 (32.R1a2 Nc4–/+) 32...Rb2–+ 33.h4 h6 34.Nh3 Kg7 35.Nf4 (35.h5 Bd6–+) 35...Bd6 36.Ne2 (36.Nh3 Rc8–+) 36...Bb4 (36...b5 37.f4–+) 37.f3 (37.h5 gh5 38.Rda1 h4–+) 37...Be7 (better is 37...Nc4 38.e4 Bd2–+) 38.Nc3? (better is 38.h5 gh5 39.e4–+) 38...Bh4 39.e4 (39.Ra2 Ra2 40.Na2 Nc4–+) 39...de4 (39...Bg5 40.Ra3–+) 40.fe4 Nb3 41.Be2 (41.Na4 Bf2 42.Kf1 Bd4 43.Nb2 Ba7–+ (43...Bb2?! 44.Ke2–+)) 41...Rc2 42.Rd3 Nd4! 43.Bd1 (43.Rd4 Theme: Deflection from c3 43...Rc3) 43...Bf2 (43...Rb2!? 44.Ra2 Ra2 45.Na2–+) 44.Kf1 Rb2 (better is 44...Rc3 45.Rc3 Nb5–+) 45.Ra2+= Ra2 46.Na2 Bh4 (46...Ra8 47.Nb4+=) 47.Rd4 Bf6 (47...b5 48.Rd7+=) 48.Rb4 (48.Rd7 Rd8 49.Ba4 Rd7 50.Bd7 Kf8=) 48...b6 (48...Rd8 49.Bb3 Rd7 50.Rb5=) 49.Ke2 (49.Nc1 Bc3 50.Rb5 Ra8=) 49...Be7 (49...b5 50.Rb3=) 50.Rb5 Bc5 51.Nc3 (51.Nb4 Rc8=) 51...e5 (51...Bd4 52.Nb1=) 52.Nd5 Exerts pressure on the isolated pawn 52...g5 (52...f5!?=) 53.Kd3 (53.Ke1 Rb7+=) 53...Kg6 54.g4 f6 (54...Rd8 55.Be2+=) 55.Be2 Kf7 56.Kc3 Kg6 57.Kc4 Rc8 58.Kb3 (58.Rb3 Rc6+/–) 58...Rb8 (58...Rc6 59.Ka4+/–) 59.Nc7 (better is 59.Bd3+/–) 59...Kf7? (59...Rb7!? 60.Ne6 Be7+/–) 60.Bc4 (60.Na6 Rf8+–) 60...Kg6+/– 61.Be6 (61.Na6 Rd8 62.Nc5 bc5+/–) 61...h5 62.Bf5 Kh6 63.Nd5 (63.Na6 Rh8 64.Nc5 bc5 65.gh5 Kh5+/–) 63...hg4 (better is 63...h4!? 64.Kc4 Kg7=) 64.Bg4+/– (worse is 64.Nf6 g3 65.Bh3 Rf8 66.Ng4 Kg7+=) 64...Kg7 65.Kc4 (65.Nc7 Bd4+/–) 65...Rd8 66.Bf5 (worse is 66.Nb6 Bb6 67.Rb6 Rd4 68.Kc5 Re4+=) 66...Rd6 67.Rb3 (67.Rc5?! bc5 68.Kc5 Ra6=) 67...Bd4 (67...Rc6 68.Kb5 Rd6 69.Rh3+–) 68.Rh3 Rc6 (68...Kg8 69.Kb5 Bc5 70.Rh6+–) 69.Kb5 Threatening mate... how? 69...Rc5 70.Kb4 Rc1 71.Rh7 Kf8 72.Nf6 White threatens strongly Bg6 72...Rb1 (72...Rc6 73.Nd7 Kg8+–) 73.Kc4 b5 74.Kd5 Rc1 (74...Ra1 75.Bc8 Rh1 76.Nd7 Kg8 77.Rh1+–) 75.Bd7 (75.Be6 Rc5 76.Kd6 Rc7 77.Kc7 Bb6 78.Kb6 g4 79.Rf7) 75...b4 (75...Ra1 76.Bc8 Rh1 77.Nd7 Kg8 78.Rh1 Kg7+–) 76.Ke6 1–0. Garcia Piedra,Juan – Gonzalez Ayuste,Pedro, Ch Asturias (team) (B), 1998.

7.cb5 Be7 8.a4 0-0 9.Be2 Nbd7 10.0-0 Bg6 11.d4 Ne4 12.Nc3 Nd6 13.Ne5 (13.Ba3 Rc8 14.Rc1 Nf6=) 13...Ne5=+ 14.de5 Nc8 (14...Nc4 15.Bc4 dc4 16.Qf3=+) 15.Rc1 Nb6 16.a5 (16.Qd4 Nd7=) 16...Nd7=+ 17.a6 b6 18.Bd3 (18.f4!?=) 18...Bd3-/+ 19.Qd3 Rc8 (19...Ne5!? 20.Qe2 Rc8-/+) 20.Ne2= Nc5 21.Qb1 Na4 22.Nd4 Nb2 23.Qb2 Rc5 24.Nc6 Qd7 25.Rc5 Bc5 26.Rc1 Rc8 27.h3 Rc6 28.bc6 Qc6 29.Qc3 Qb5 30.Qa1 h6 31.Rb1 Qc4 32.Qb2 (32.Rd1 Qe2+=) 32...Qe4 (32...Qa6 33.Ra1 Qb7 34.Qb5=+) 33.Qb5 g6 34.Qe8 Kg7 35.Rf1 (35.Rd1 Qe5 36.Qd7 Bd6+=) 35...Qc4 (35...Qe5 36.Qd7 Bd6 37.g3=) 36.Qd7 (36.Qc8 b5+=) 36...Qa6= 37.Qd8 b5 38.Qf6 Kg8 39.Rc1 Qb7?? (better 39...Qa3 40.Rc2 a5=) 40.Rc5 (better 40.Qd8 Bf8 41.Rc7+-) 40...b4 (40...Qd7+-) 41.Qd8 Kg7 42.Rc8 (42.Rc8 Qc8 43.Qc8+-) 1-0. BeepBeepImAJeep (2620) - LetsChessL (1950), lichess.org, 2015.

7.cd5 a6 8.de6 Be6 9.Be2 (9.Ng5 Nc6=) 9...Be7 (9...Nc6 10.Ng5=) 10.0-0 0-0 11.d4 Nbd7 12.Nbd2 Nb6 13.e4 Bc4 (13...Na4 14.Qb1=) 14.Bc4 (14.d5 Re8+=) 14...Nc4 15.Nc4 bc4 16.Nd2 (16.Qc2 Qc7+=) 16...Rc8= 17.e5? (better is 17.Bc3=) 17...Nd5–/+ 18.Ne4 b5 (18...c3 19.Bc1 Qb6–/+) 19.f4 (better is 19.Qf3!? b4 20.Nd6 Bd6 21.Qd5–/+) 19...Ne3–+ 20.Qf3 Nf1 21.Rf1 (21.Kf1 f5 22.Ng3 Qc7 23.Qd5 Kh8–+) 21...b4 22.d5 c3 (22...Qb6 23.Kh1 c3 24.Bc1–+) 23.Bc1 Bc5 (23...Qd5?? 24.Nf6 Bf6 25.Qd5+–) 24.Kh1 Kh8 (24...Qa5!? 25.d6–+) 25.d6–/+ f6 (better is 25...Qd7–/+) 26.e6?? (26.Qd3 fe5 27.fe5 Rf1 28.Qf1–+) 26...Bd6–+ 27.Rd1 Rc6 28.Ng5 (28.Rd5 Qc7 29.g4–+) 28...Rc7 (28...c2 29.Rd3 A) 29...fg5? 30.Qc6 Qf6 31.Qd6+– (31.Rd6?! Qe5 32.Qb6 gf4+/–); B) 29...Qe8–+) 29.Ne4 Rc6 30.Ng5 Qc7 (better is 30...c2 31.Rd3 Qe8 32.Nh3–+) 31.Nf7 Rf7 (31...Kg8!? 32.f5 c2 33.Rd4–+) 32.ef7 Bf8 33.Re1 (33.f5 c2 34.Re1 Rc5–+) 33...Rd6 34.h3 (34.Qe4 Qf7 35.Qb4 c2–+) 34...Qf7 35.a3 (35.Qe2 Kg8–+) 35...a5 36.Qa8 (36.ab4 ab4 37.Qa8 Kg8–+) 36...b3 37.Qa5 (37.a4 b2 38.Bb2 cb2–+) 37...b2 (37...b2 38.Bb2 cb2–+) 0–1. Rode,Dominik – Wegerle,Joerg, Hassloch op–A, 1997.

7.cd5 ed5 8.Nd4 Bd7 =.

7.cd5 Qd5 8.Nc3 Qd8 9.Bb5 Nbd7 10.0-0 +=.

7.cd5 Nd5

8.Bb5 Nc6 9.Nd4 Rc8 (9...a6 10.Bc6 bc6 11.Nf5 ef5 12.Na3=) 10.Nf5 ef5 11.0-0 a6 (11...Nf6!?+=) 12.Bd3+– Qg5 (12...Qb6!? 13.Qb3 Qb3 14.ab3 Nce7+–) 13.Nc3+– Ndb4 14.Bb1 Bd6? (better 14...Na5 15.a3 Nbc6+–) 15.a3 Ne5 (15...0-0+–) 16.f4 (16.f4 Qh6 17.ab4+–) 1–0. Lance5500 (2635) – AngryDragon1009 (1915), lichess.org, 2019.

8.Bb5 Nd7 9.Ne5 =.

6.b5 dc4

7.Bc4 cb5 8.Bb5 Nc6 9.Nd4 Qc7 (9...Be4!? 10.f3 a6+=) 10.Qa4 (10.Bc6 bc6 11.Nf5 ef5 12.Bf6 gf6 13.Qc2+–) 10...Rc8 (10...Nd7 11.Nf5 ef5 12.Qc2+–) 11.Qa7 (11.Nf5 ef5 12.Bf6 gf6 13.Qa7 f4+–) 11...Be7 (11...Be4 12.f3 Nd7 13.Nc6 Bc6 14.Qa4+=) 12.Nc3 (12.Bc6 bc6 13.Qc7 Rc7 14.Nf5 ef5+–) 12...0-0 (12...Bg6 13.Rc1 Qd7 14.Nc6 bc6 15.Qd7 Kd7 16.Na4+–) 13.Bc6+– bc6 14.Qc7 Rc7 15.Nf5 ef5 16.a4 Rb8 17.Ba3 Ba3 18.Ra3 Nd5 (18...Ne4 19.Ke2+–) 19.0-0 (19.Ke2 Kf8+–) 19...Nc3 20.dc3 (20.Rc3 Ra7+–) 20...Ra7+– 21.a5 Rba8 22.Rfa1 Ra6 23.g3 Kf8 24.Kg2 Ke7 25.Kf3 Kd6 26.Ra4 Kc5 27.R1a3 g6 28.h4 Kb5 29.c4 Kc5 30.Ra2 f6 31.h5! R8a7 (31...gh5 32.Kf4 Combination) 32.Ke2 gh5 (32...g5 33.Kd2+–) 33.Kf3+– Kd6 (33...Rb7 34.Kf4 Rb4 35.Kf5 Kc4 36.Kf6 Ra4 37.Ra4 Kb3 38.Ra1+–) 34.Kf4+– Ke6 35.Kf3 Ke5 (35...Kd6 36.R2a3 Ke5+–) 36.Ra1+– c5 37.R4a3 Ke6 38.Kf4 h6 39.R3a2 Ra8 (39...Rg7 40.f3 Rb7 41.Ra4+–) 40.Ra4 R8a7 41.f3 Ra8 42.e4 (42.Rb1!?+–) 42...fe4+– 43.Ke4 f5 44.Kf4 Kf6 (44...Rd8 45.Ke3+–) 45.Rd1 Ra5 46.Ra5 Ra5 47.Rd5 Kg6 48.Rf5 Kg7 (48...Kh7 49.Rh5 Kg7 50.g4+–) 49.Rh5 Kg6 (better 49...Kh7+–) 50.g4 Kg7 51.Rd5 Kg6 52.Ke4 Kf6 53.f4 Kg7 54.Rd6 Ra1 55.Rc6 Re1 56.Kf5 Re7 57.Rc5 Rf7 58.Ke4 Re7 59.Kf3 Rd7 60.Ke4 Re7 61.Re5 Rc7 62.c5 Kf6 63.Rf5 Kg6 (63...Ke7 64.g5 hg5 65.fg5+–) 64.Kd5 Rd7 65.Ke6 (65.Ke6 Ra7 66.c6+–) 1–0. GuestNFTH – GuestBJDY, freechess.org, 2017.

7.Bc4 Bd6 8.Nd4 Bg6 9.bc6 Nc6 10.Nc6 bc6 11.d3 =.

7.Bc4 a6

8.a4 ab5 9.ab5 Ra1 10.Ba1 Bd3 11.Qb3 Bc4 12.Qc4 Qa5 13.bc6 Nc6 (13...Qa1?? 14.c7 Bd6 15.c8Q (15.cb8R?! Bb8 16.Qc8 Ke7 17.Qb7 Nd7+/–; 15.cb8Q?! Bb8 16.Qc8 Ke7 17.Qb7 Nd7+/–) 15...Ke7 16.Qh8 Qb1 17.Ke2+–; worse is 13...bc6 14.Bf6 gf6 15.0-0+=) 14.Bc3 Qa6 15.Qa6 ba6 16.Ke2 Nd5 1–0. Bennett,Hilton P – Bishop,J O, NZCCA TT Reserve, 1994.

8.bc6 Nc6 9.0-0 =.

7.Bc4 Bd3

8.Qb3 Bc4 9.Qc4 Qd5 10.Qd5 cd5 11.0-0 Nbd7 12.d4 (12.Rc1 Bd6=) 12...Bd6 13.Ba3 Ke7 14.Bd6 Kd6 15.Rc1 Ne4 16.Nbd2 f5 17.Rc2 Rac8 18.Rac1 Rc2 19.Rc2 h6 20.Ne4 fe4 21.Nd2 Nb6 22.f3 ef3 23.gf3 Rc8 24.Rc8 Nc8 25.a4 (25.Nb3 Ke7=) 25...Nb6+= 26.Kf2? (better is 26.a5!? Nc4 27.Nc4 dc4 28.Kf2–/+) 26...Na4–+ 27.Nb1 Kc7 28.Ke2 (better is 28.Kg3–+) 28...Kb6 29.Kd2 Kb5 30.Nc3 (30.h4–+) 30…Nc3 (30...Nc3 31.Kc3 Ka4–+) 0–1. Turcot,Jean – Lessard,Claude (2070), Charlesbourg op1, 2004.

8.Qb3 Bc4 9.Qc4 Qd5 10.Qd5 Nd5 11.a4 a6 12.bc6= Nc6 13.Nc3 Ndb4 14.Ke2 Be7 15.d4 0-0 16.Rac1+= Rfd8 17.Rhd1 Rac8 18.e4 Na5 19.Nb1 Nc4=+ 20.Ba1 Na2 21.Rc2= Nb4 22.Rc3 Na2 23.Rb3 Na5 24.Re3 Rc4 25.d5 Ra4 26.Nc3 (better is 26.Bd4!?=) ½–½. Mothes,Rainer – Dieng,M, corr SOK–92–82, 1992.

8.Qb3 Bc4 9.Qc4 Be7 10.a4 0-0 11.0-0 a6 12.Nc3 c5 (12...Qd7 13.b6=) 13.d4 Nbd7 14.dc5 Bc5 (14...Nc5 15.Rfd1 Qa5 16.Rac1=) 15.Rfd1 Qe7 16.Qh4 Rfd8 17.Ng5 h6 18.Nge4 Ne4 19.Qe7 Be7 20.Ne4 Nb6 21.Rd8 Rd8 22.ba6 ba6 23.Kf1 (23.Bd4!? Nd5 24.Rc1=) 23...f5+= 24.Ng3 Nc4 25.Bc3 Rd3 (25...Bd6 26.Ke2+=) 26.Rc1= Nb6 27.Ke2 Rd5 28.Ra1 Kf7 29.Bd4 Bc5 30.Bc5 Rc5+= 31.Kd3 Ra5–/+ 32.Rb1 Na4 33.Kc4 Rc5 34.Kd4 Rd5 35.Kc4–/+ Nc5 36.Rb6 a5 37.Rb5 a4 38.Ne2 Ne4 39.Rd5 ed5 40.Kb4 Nf2 41.Nf4 Nd1 42.Nd5 Ke6 43.Nf4 Ke5 44.Nh5? g5 45.Ka4 Ne3 46.g3 Ng4 47.h3 Nf2 48.h4 Ne4 49.hg5 hg5 50.Kb4 Kd5 51.Kb3 g4 52.Kc2 Kd4 53.Kd1 Ke3 54.Ke1 Kf3 55.Ng7 Ng3 56.Ne6 Ke3 57.Nc7 f4 58.Nd5 Kf3 59.Nf6 Ne2 60.Nh7 g3 (60...g3 61.Kd2 g2 62.Ng5 Kg4–+) 0–1. McKenna,Jam (1925) – Price,Andrew, 1st It Congress, Coventry ENG, 2004.

7.Bc4 Be7

8.0-0 0-0 9.a4 Bg4 10.Be2 cb5 11.ab5 Nbd7 12.Nc3 Nb6 13.h3 Bf3 14.Bf3 Nfd5 (14...Nc4 15.Qe2 Nb2 16.d4=) 15.Nd5 Nd5 16.Qb3 a6 17.ba6 ba6 18.Rfc1 Rb8 19.Qd1?? (better 19.Qc2+=) 19…Rb2-+ 0-1. iamdudum (1820) - Matador_Angelo (1940), Rated Classical game, lichess.org, 2013.

8.a4 0-0 9.0-0 cb5 10.ab5 Bd3 11.Bd3 Qd3 12.Nc3 Nbd7 13.Ba3 Ba3 14.Ra3 a5 15.ba6 Ra6 16.Rb3 Rb8 17.Qb1 Qb1 18.Rfb1 b6 19.Kf1 Kf8 20.Ke2 Rba8 21.d4 Ra3 22.h3 h6 23.Kd3 Ke7 24.e4 Kd8 25.Ra3 Ra3 26.Nd2 Ne8 27.Nc4 Ra6 28.e5 Nc7 29.f4 Ke7 30.Nd6 Ra8 31.Kc4 Ra3 32.Rb2 Ra8 33.Rf2 f5 34.g4+/– (White gets the initiative) 34...fg4 35.hg4 g6 36.f5 gf5 37.gf5 Rf8 38.f6 Nf6 39.Rf6 Rf6 40.Nc8 Kf7 41.ef6 Kf6 42.Nb6 Kf5 43.Kc5 h5 44.Nc4 Ne8 45.Kc6 h4+/– 46.Ne3 Kg5 ½–½. Ree,Hans – Bernstein,Yaacov, Netanya, 1968.

8.Nc3 0-0 9.0-0 cb5 10.Nb5 Nbd7 11.Rc1 Qb6 12.Bd4 Bc5 13.Bc5 Nc5 14.Ne5 Ncd7 15.Nd7 Nd7 16.d4 Rfc8 17.Bd3?? (better is 17.Be2=). Welling,Gerard (2335) – Oortwijn,Ron, NED Netherlands, 1998.

8.Nd4 Be4 9.d3 (9.Nc3 Bg6+=) 9...Bd5 10.0-0 c5 11.Nf3 0-0 12.Nbd2 Nbd7 13.e4 Bc4 14.Nc4 Qc7 15.Nfe5 (15.Qb3 h6+=) 15...Ne5 (15...a6 16.a4=) 16.Be5+= Qd7 17.a4 (17.Qb3 Nh5+=) 17...Rfd8 18.Ra3 (18.Na5!?=) 18...Ne4–/+ 19.Bg7 (19.de4 Qd1 Pinning (19...Qd1 Deflection)) 19...Kg7–+ 20.Qg4 Ng5 21.h4 Qd4 22.Qd4 Rd4 23.hg5 Bg5 24.g3 h5 25.Kg2 Be7 26.f4 Rad8 27.Rf3 Bd6 (27...Bf6 28.a5–+) 28.a5 White plans b6 28...Bb8 29.b6 a6 30.Rc3 h4! 31.Nd2 (31.gh4 Bf4 Deflection) 31...R8d5 (31...c4 32.Rc4 Rc4 33.Nc4 hg3 34.Nd2–/+) 32.Nb3+= Ra4 33.Nc5 Ra5 34.Nb7 Rab5 (34...Ra2 35.Kh3+=) 35.Rc8= Bd6 36.Rc6 Be7 37.g4 White prepares f5 (37.gh4 Rb2 38.Rf2 Rb4=) 37...a5 38.Rc7? (38.f5!? Rb2 39.Kh3=) 38...Bf8 (better is 38...Bf6!? 39.Rc6 Bd4–+) 39.f5+= Rb6 (39...e5 40.f6 Kg6–/+) 40.fe6+= h3 (better is 40...Kg6!? 41.Rcf7 Ba3+=) 41.Kh3+– Kg6 42.Rcf7 (42.ef7?! a4 43.d4 Rb3 44.Rc6 Kg7 45.Rb3 ab3=) 42...Bb4 43.R3f6 Kg5 44.Rf5 Rf5 45.gf5 (45.Rf5 Kg6 46.Na5 Re6+–) 45...a4 46.d4 (better is 46.e7!? Be7 47.Re7 Kf5 48.Nc5+=) 46...a3= 47.Nc5 a2 48.Ne4 Kf4 49.Ra7 Ke4 50.Ra2 Kf5 51.d5 Be7 52.Ra7 Kf6 53.Kg4 Rb4 54.Kf3 Bd6 55.Rh7 Ke5 56.Rh5 Kf6 57.Ke3 Ra4 58.Kd3 Rg4 59.Rh7 Ke5 60.Rd7 Kd5 61.e7 Rd4 62.Ke3 Re4 63.Kd3 Re6 64.Kc3 Kc6 65.Ra7 Kb6 66.Rd7 Be7 67.Kc4 Bf6 68.Kd5 ½–½. Bulcourf,Carlos (2145) – Sanz,Luis (2010), IRT Jose Rubinstein, 2008. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.b5 dc4 7.Bc4 Be7)

8.Nd4 Bg6 =.

6.b5 c5

7.a4 b6 8.Nc3 Nbd7 9.d4 dc4 10.Bc4 cd4 (10...Bg4 11.dc5 Bc5 12.Be2=) 11.Nd4+= Bg4 12.Qb3 Bc5 13.Nc6 Qc8 14.h3 Bh5 15.Be6 (better 15.Rc1+=) 15...fe6=+ 16.Qe6 Kf8 17.Ba3 Ba3 18.Ra3 Qe8 19.Qd6 Kg8 (19...Kf7 20.a5=+) 20.Ne7 (20.g4!? Bg6 21.g5=) 20...Kf7-/+ 21.Nf5 (better 21.Nc6-/+) 21...Qe6?? (better 21...Bg6!? 22.Nh4 Qe5 23.Qe5 Ne5 24.Ng6 Kg6-/+) 22.g4 (better 22.Qe6!? Ke6 23.Ng7 Kf7 24.Nh5 Nh5 25.g4+=) 22...Bg6=+ 23.Qe6 Ke6 24.Nd4 Kf7 25.f4 Be4 26.0-0 Bb7 27.Nc6 (27.Nf5 Nc5 28.Nd6 Ke6 29.Nb7 Nb7=+) 27...Nc5 (27...a6 28.Ne5 Ke6 29.ba6 Ba6 30.Nd7 Nd7 31.Rd1-/+) 28.g5 Nfd7 29.Nd5 g6 30.a5 Kg7 (30...ba5 31.Ra5 h6 32.Kh2=+) 31.a6= Bc6 (31...Na6 32.Ra6 Ba6 33.ba6=+) 32.bc6 Nb8 33.Nb4? (better 33.c7 Nc6 34.Rc3=) 33...Rc8-+ 34.Rd1 Nc6 35.Nc6 Rc6 36.Rd4 Re8 37.Kf2 Re7 (37...b5 38.Ke2-+) 38.Kf3 Rce6 39.h4 Re4 40.Re4 Re4 41.Rc3 (41.Ra2-+) 41...Na6?? (better 41...Ra4-+) 42.Ke4+- Nc5 43.Kd5 Kf7 (43...Na6 44.Kd6 Nc5 45.Kc6+-) 44.e4 Ke7 45.f5 Nb7 (45...Kf7+-) 46.f6 Kf8 47.e5 (47.Rc8 Kf7 48.Rc7 Kg8 49.Rb7 h5 50.Rb8 Kh7 51.f7 a6 52.f8Q b5 53.Qe7) 47...Nd8 (47...Ke8 48.e6 Kd8 49.f7 Nc5 50.Rc5 bc5 51.Kd6 Kc8 52.Kc6 c4 53.f8Q) 48.e6 (48.Rc8 Ke8 49.e6 h5 50.e7 Kf7 51.ed8Q a6 52.Qe7) 48...Ne6 (48...Kg8 49.e7 Ne6 50.Rc8 Kf7 51.e8Q) 49.Ke6 (49.Ke6 h6 50.Rc8) 1-0. dale70 (2030) - iman60 (2040), Rated Blitz game, lichess.org, 2015.

7.a4 dc4 A) 8.Be2 A1) 8...Bd3 9.Na3 (9.0-0 Be7 10.Na3 Be2 11.Qe2 Qd3 12.Rfe1 Qe2 13.Re2) 9...Qd5 10.Rc1 Nbd7 11.Nc4 Be7 12.Bd3 Qd3 13.Nfe5; A2) 8...Be7 9.0-0 (9.Na3 c3 10.Bc3 0-0 11.0-0 Nd5 12.Nc4 Nd7 13.Qb3) 9...0-0 10.Na3 c3 11.Bc3 Nd5 12.Nc4 Nd7 13.Qb3; A3) 8...Nbd7 9.Na3 (9.0-0 Bd3 10.Na3 Bd6 11.Nc4 Bc4 12.Bc4 Nb6 13.Rc1) 9...c3 10.Bc3 Ne4 11.Bb2 Be7 12.d3 Qa5 13.Kf1; B) 8.h3 B1) 8...Be7 9.Bc4 (9.Nc3 Nbd7 10.Bc4 Nb6 11.Be2 0-0 12.0-0 Nbd5 13.Qb3) 9...Nbd7 10.a5 0-0 11.Nc3 Bd6 12.0-0 Ne5 13.Ne5; B2) 8...Bd6 9.Na3 (9.Be2 Nbd7 10.Na3 c3 11.Bc3 0-0 12.Nc4 Bc7 13.0-0) 9...c3 10.Bc3 0-0 11.g4 Be4 12.Nc4 Bc7 13.Be2; B3) 8...Nbd7 9.Bc4 (9.Na3 c3 10.Bc3 Ne4 11.Bb2 h5 12.Nc4 Nb6 13.a5) 9...Bd6 10.0-0 0-0 11.a5 h5 12.Nc3 Qc7 13.Qe2; C) 8.a5 C1) 8...Bd6 9.Na3 (9.Bc4 Nbd7 10.0-0 0-0 11.h3 h6 12.Nc3 Ne5 13.Ne5) 9...c3 10.Bc3 0-0 11.Nc4 Be7 12.Nfe5 Nd5 13.Qb3; C2) 8...Be7 9.Bc4 (9.Nc3 Nbd7 10.Bc4 0-0 11.0-0 Bd6 12.Qe2 Ng4 13.e4) 9...Nbd7 10.0-0 0-0 11.Nc3 Bd6 12.Qe2 Ng4 13.e4; C3) 8...Nbd7 9.Bc4 (9.Nc3 Bd6 10.Bc4 0-0 11.0-0 h6 12.Qe2 Ng4 13.e4) 9...Bd6 10.0-0 0-0 11.Nc3 Ng4 12.a6 b6 13.Be2; D) 8.Na3 D1) 8...Nbd7 9.Nc4 (9.Be2 c3 10.Bc3 Ne4 11.0-0 Be7 12.Bb2 Bf6 13.Bf6) 9...Nb6 10.Nfe5 Nc4 11.Bc4 Bd6 12.0-0 0-0 13.Qe2; D2) 8...c3 9.dc3 (9.Bc3 Nbd7 10.Nc4 Ne4 11.Bb2 Nb6 12.Nce5 Nd5 13.g4) 9...Nbd7 10.Nc4 Be7 11.Bd3 Nb6 12.Nb6 ab6 13.Bf5; D3) 8...Be7 9.Be2 (9.Nc4 0-0 10.Be2 Nbd7 11.0-0 Nd5 12.Qb3 Qc7 13.a5) 9...c3 10.Bc3 0-0 11.0-0 Ne4 12.Bb2 Bf6 13.Bf6.

7.a4 Bd6 A) 8.Nh4 A1) 8...Bb1 9.Qb1 (9.Rb1 0-0 10.cd5 Nd5 11.Nf3 Nd7 12.Bd3 N7b6 13.0-0) 9...Nbd7 10.cd5 Nd5 11.Nf3 0-0 12.Bd3 N7f6 13.0-0; A2) 8...Bg6 9.cd5 (9.Ng6 fg6 10.Nc3 Nbd7 11.f4 d4 12.ed4 cd4 13.Ne2) 9...ed5 10.Ng6 fg6 11.Nc3 Nbd7 12.Qc2 Qe7 13.a5; A3) 8...Bg4 9.Qc2 (9.Be2 Be2 10.Qe2 Nbd7 11.cd5 Nd5 12.Nf3 0-0 13.0-0) 9...0-0 10.h3 Bh5 11.g4 Ne4 12.cd5 ed5 13.Nf5; B) 8.Nc3 B1) 8...0-0 9.h3 (9.Nh4 d4 10.Nd5 Be4 11.Nf6 Qf6 12.Qg4 Bc2 13.Ra2) 9...Nbd7 10.g4 Be4 11.g5 d4 12.Ne4 Ne4 13.Bd3; B2) 8...dc4 9.Bc4 (9.a5 Nbd7 10.Bc4 0-0 11.0-0 h6 12.Qe2 Qc7 13.h3) 9...Nbd7 10.0-0 0-0 11.a5 Ng4 12.a6 b6 13.Be2; B3) 8...Nbd7 9.h3 (9.Qb3 d4 10.ed4 0-0 11.Qd1 Bg6 12.Be2 cd4 13.Nd4) 9...0-0 10.g4 Be4 11.g5 d4 12.Ne4 Ne4 13.Bd3; C) 8.Qb3 C1) 8...0-0 9.Nc3 (9.Be2 Nbd7 10.0-0 Qa5 11.Nc3 Qb4 12.Qa2 dc4 13.Bc4) 9...d4 10.ed4 Nbd7 11.Qd1 Bg6 12.Be2 cd4 13.Nd4; C2) 8...dc4 9.Bc4 (9.Qc3 Bc7 10.Qc4 Nbd7 11.Nc3 0-0 12.Be2 Rc8 13.h3) 9...Nbd7 10.Nc3 0-0 11.Nh4 Ne5 12.Nf5 ef5 13.Be2; C3) 8...Nbd7 9.Nc3 (9.Be2 0-0 10.Nc3 d4 11.Nd1 e5 12.0-0 Qa5 13.d3) 9...d4 10.ed4 0-0 11.Ne2 cd4 12.Ned4 Nc5 13.Qe3; D) 8.cd5 D1) 8...Nd5 9.Bg7 (9.d3 Bg4 10.Nbd2 0-0 11.Nc4 Qc7 12.e4 Nb4 13.e5) 9...Rg8 10.Bb2 Nd7 11.Na3 Be7 12.Nc4 Qc7 13.a5; D2) 8...0-0 9.de6 (9.Bf6 Qf6 10.Nc3 Nd7 11.Be2 ed5 12.Nd5 Qe6 13.Bc4) 9...fe6 10.Na3 Nbd7 11.Nc4 Bc7 12.Be2 Qe7 13.0-0; D3) 8...ed5 9.Bf6 (9.Nc3 0-0 10.Be2 Nbd7 11.0-0 Qc7 12.g3 Rfe8 13.Re1) 9...Qf6 10.Nc3 Be6 11.e4 0-0 12.ed5 Bh3 13.Rg1.

7.a4 Be7 A) 8.Be2 A1) 8...0-0 9.0-0 (9.Nh4 Bb1 10.Qb1 Ne4 11.Nf3 Bf6 12.0-0 Nd7 13.d3) 9...Nbd7 10.Nh4 Bb1 11.Rb1 Ne4 12.Nf3 Qa5 13.Qc2; A2) 8...h6 9.0-0 (9.Qb3 0-0 10.0-0 dc4 11.Qc4 Nbd7 12.a5 Be4 13.Qa4) 9...0-0 10.Nh4 Bh7 11.cd5 ed5 12.f4 Nbd7 13.Nf3; A3) 8...Nbd7 9.Nh4 (9.0-0 Nb6 10.cd5 ed5 11.d3 0-0 12.a5 Nbd7 13.Nc3) 9...Bb1 10.Qb1 0-0 11.Qd3 dc4 12.Qc4 Nd5 13.Nf3; B) 8.Qb3 B1) 8...0-0 9.Nc3 (9.Be2 Nbd7 10.0-0 dc4 11.Bc4 Nb6 12.Na3 h6 13.h3) 9...h6 10.g3 Qd6 11.Nh4 Be4 12.Ne4 de4 13.d3; B2) 8...h6 9.Be2 (9.Bd3 dc4 10.Bc4 Nbd7 11.a5 0-0 12.Nc3 Qc7 13.h3) 9...0-0 10.a5 a6 11.0-0 ab5 12.Qb5 Nbd7 13.Nc3; B3) 8...Nbd7 9.Be2 (9.Na3 0-0 10.Be2 Qc7 11.0-0 Bd6 12.g3 h6 13.Nh4) 9...dc4 10.Bc4 0-0 11.0-0 Nb6 12.Na3 h5 13.h3; C) 8.cd5 C1) 8...Nd5 9.Bg7 (9.Nc3 0-0 10.g4 Bg6 11.Ne5 Nc3 12.Bc3 Be4 13.Rg1) 9...Rg8 10.Bb2 Bf6 11.Nc3 Nb4 12.e4 Be4 13.Ne4; C2) 8...ed5 9.Be2 (9.Nh4 Be6 10.Be2 0-0 11.Nf3 a6 12.Na3 ab5 13.Nb5) 9...0-0 10.0-0 Nbd7 11.Nc3 Qc7 12.d4 c4 13.Nh4; D) 8.Nc3 D1) 8...Nbd7 9.Nh4 (9.cd5 ed5 10.Be2 0-0 11.0-0 Qc7 12.d4 c4 13.Nh4) 9...Bg4 10.f3 Bh5 11.cd5 0-0 12.Qb3 Ne8 13.g3; D2) 8...dc4 9.Bc4 (9.a5 Nbd7 10.Bc4 0-0 11.0-0 Bd6 12.Qe2 Qc7 13.h3) 9...Nbd7 10.0-0 0-0 11.Be2 h6 12.Qb3 Rc8 13.Rfc1; D3) 8...0-0 9.h3 (9.Qb3 d4 10.ed4 cd4 11.Ne2 Nbd7 12.Ned4 Nc5 13.Qd1) 9...Nbd7 10.Be2 dc4 11.0-0 Bd3 12.Bd3 cd3 13.Qb3.

7.a4 h6 A) 8.Nc3 A1) 8...Nbd7 9.d4 (9.g3 Bd6 10.cd5 ed5 11.Bg2 0-0 12.0-0 Bd3 13.Re1) 9...dc4 10.Bc4 Bd6 11.0-0 0-0 12.Qe2 Rc8 13.Rfd1; A2) 8...dc4 9.Bc4 (9.a5 Nbd7 10.a6 b6 11.Bc4 Bd6 12.0-0 0-0 13.h3) 9...Nbd7 10.0-0 Bd6 11.Qe2 0-0 12.Nh4 Bh7 13.f4; A3) 8...Be7 9.d4 (9.cd5 ed5 10.d4 c4 11.Ne5 Nbd7 12.Qf3 Be6 13.Be2) 9...0-0 10.dc5 Bc5 11.cd5 Nd5 12.Nd5 ed5 13.Bd3; B) 8.h3 B1) 8...Be7 9.Nc3 (9.g4 Bh7 10.Be2 0-0 11.0-0 Nbd7 12.a5 a6 13.b6) 9...0-0 10.g4 Bh7 11.Qb3 Qd6 12.h4 d4 13.ed4; B2) 8...Bd6 9.cd5 (9.g4 Bh7 10.h4 Ng4 11.cd5 ed5 12.Rg1 Bf5 13.Bg7) 9...ed5 10.Bf6 Qf6 11.Nc3 Be6 12.b6 ab6 13.Nb5; B3) 8...Nbd7 9.Nc3 (9.g4 Bh7 10.Nc3 Bd6 11.Rg1 d4 12.ed4 cd4 13.Nd4) 9...Bd6 10.g4 Bh7 11.Rg1 d4 12.ed4 cd4 13.Nd4; C) 8.Be2 C1) 8...Be7 9.0-0 (9.Qb3 0-0 10.0-0 Nbd7 11.a5 a6 12.cd5 ed5 13.Nc3) 9...Nbd7 10.Nc3 0-0 11.a5 Qc7 12.Qb3 Qd6 13.d4; C2) 8...Bd6 9.cd5 (9.Nc3 dc4 10.Bc4 Nbd7 11.a5 0-0 12.0-0 Ng4 13.e4) 9...ed5 10.Bf6 Qf6 11.Nc3 Be4 12.Rc1 Qe6 13.d3; C3) 8...Nbd7 9.Nc3 (9.cd5 ed5 10.Nc3 Bd6 11.Qb3 c4 12.Qa2 Nc5 13.Ba3) 9...dc4 10.0-0 Bd6 11.a5 Bd3 12.Bd3 cd3 13.Qa4; D) 8.cd5 D1) 8...Nd5 9.Nc3 (9.Bc4 Nd7 10.0-0 Bd6 11.d3 Nb4 12.Nc3 0-0 13.Ne4) 9...Nd7 10.Nd5 ed5 11.a5 Nf6 12.a6 b6 13.Ne5; D2) 8...Be7 9.de6 (9.Nc3 ed5 10.Nh4 Bh7 11.d4 Nbd7 12.Be2 Ne4 13.Ne4) 9...Be6 10.Qc2 0-0 11.Na3 Nbd7 12.Nc4 Nd5 13.Be2; D3) 8...ed5 9.Bf6 (9.Nc3 Nbd7 10.Nh4 Bh7 11.g3 d4 12.Ne2 g5 13.Nf3) 9...Qf6 10.Nc3 Be6 11.Be2 Bd6 12.0-0 0-0 13.d4.

7.Be2 h6 8.0-0 (8.cd5 ed5 9.Bf6 gf6=) 8...dc4 (8...Nbd7 9.d4=) 9.Na3+= Be7 10.Nc4 0-0 11.d4 (11.d3 Nbd7+=) 11...Nbd7= 12.a4 Rc8 13.Rc1 Nd5 14.Qd2 Bh7 (14...N7b6 15.Nb6 ab6 16.Bd3 Bd3 17.Qd3 cd4 18.Rc8 Qc8 19.Nd4=) 15.Rfd1+= cd4 (15...N7f6 16.dc5 Bc5 17.Bd3=) 16.Bd4 (16.Qd4!? Bf6 17.Qa7 Bb2 18.Nb2=) 16...Nc5= 17.Qb2 (17.Bc5 Rc5 18.Nd4 Qc8=) 17...f6 (17...Na4 18.Qa1 Nc5 19.Na5+= (worse 19.Bg7 Nb3 20.Qb2 Nc1 21.Rc1 Bf6 22.Bf6 Qf6–/+)) 18.Bc5 Bc5 19.Nd4 Qe7 20.Bf3 Rfd8 21.Qb3 Nb4 22.Bb7 (better 22.Bg4!? Bd4 23.ed4+=) 22...Qb7–/+ 23.Ne6 (23.Na5!? Qb6 24.Nac6 Nc6 25.Nc6 Rd1 26.Qd1–/+) 23...Rd1–+ 24.Qd1 Qe7 (24...Nd3 25.Nc5 A) 25...Nc5?? 26.Nd6 Rd8 27.Nb7 (27.Rc5?! Kf8+–) 27...Rd1 28.Rd1 Nb7 29.Rd7+–; B) 25...Rc5–+) 25.Nd6=+ Qe6 26.Nc8 Nd3 (26...Bc2!? 27.Qd8 Kh7=+) 27.Rc5= Nc5 28.Na7 (28.Qd8 Kf7 29.h4 Nd7=) 28...Be4=+ 29.Qd4 (29.a5 Qa2 30.a6 Nd3=) 29...Qb3 (29...Nd3 30.h4 Ne1=+) 30.f3?? (30.h4 Qb1 31.Kh2–/+) 30...Qb1–+ 31.Kf2 Nd3 32.Kg3 Qe1 33.Kg4 Ne5 (33...h5 34.Kh3 Bf5 35.g4 Qf1 36.Kg3 Qg1 37.Kh3 Nf2 38.Kh4 Qh2) 34.Kh3 Bf5 35.g4 Qf1 36.Kg3 Qf3 37.Kh4 Ng6 (37...Ng6 38.Kh5 Qh3; 37...g5 38.Kh5 Qh3) 0–1. Morriss,P (1965) – Renman,N (2355), 19th ch–Euro Seniors +65, 2019.

7.a4 Nbd7

8.Qb3 A) 8...Nb6 9.cd5 (9.Na3 Bd6 10.Be2 0-0 11.0-0 h6 12.a5 Nbd7 13.a6) 9...Nbd5 10.Be2 Bd6 11.Na3 Nb6 12.a5 Nbd5 13.Nc4; B) 8...dc4 9.Bc4 (9.Qc4 Nb6 10.Qb3 Bd6 11.Nc3 0-0 12.Nh4 Bg4 13.h3) 9...Nb6 10.Na3 Be7 11.0-0 0-0 12.a5 Nc4 13.Nc4; C) 8...Bd6 9.Nc3 (9.a5 0-0 10.Be2 dc4 11.Bc4 Ng4 12.a6 b6 13.d3) 9...d4 10.ed4 0-0 11.Ne2 Qc7 12.Ng3 cd4 13.Bd4.

8.Nc3 A) 8...dc4 9.Bc4 (9.a5 Bd6 10.Bc4 0-0 11.0-0 Ng4 12.a6 b6 13.Be2) 9...Bd6 10.0-0 0-0 11.Qb3 Nb6 12.Be2 Rc8 13.h3; B) 8...Be7 9.Nh4 (9.h3 0-0 10.g4 Bg6 11.g5 Ne4 12.cd5 ed5 13.Nd5) 9...Bg4 10.f3 Ne4 11.fg4 Bh4 12.g3 Bf6 13.cd5; C) 8...Bd6 9.Nh4 (9.Qb3 d4 10.ed4 0-0 11.Qd1 Bg6 12.h4 Qc7 13.a5) 9...Bg4 10.f3 Bh5 11.Qc2 0-0 12.Be2 d4 13.ed4.

8.d3 Bd6 (8...dc4 9.dc4 (9.Nc3 Qa5 10.dc4 0-0-0 11.Qc1 Bd6 12.Be2 Qc7 13.0-0) 9...Qc7 10.Bd3 Bd3 11.Qd3 0-0-0 12.0-0 Bd6 13.Qc2; 8...Be7 9.cd5 (9.Nbd2 Qa5 10.cd5 ed5 11.Be2 0-0 12.0-0 Qc7 13.h3) 9...ed5 10.Be2 0-0 11.0-0 Qc7 12.Nc3 h6 13.h3) 9.Nbd2 (9.Nc3 0-0 10.Be2 Qc7 11.cd5 ed5 12.0-0 Rfe8 13.g3; 9.Be2 dc4 10.dc4 Qb6 11.a5 Qc7 12.b6 Qc6 13.ba7) 9...Qc7 (9...Qa5 10.Rc1= (10.Be2 dc4 11.dc4 0-0 12.0-0 Rfd8 13.Qb3) 10...0-0 11.Bc3 Qc7 12.Be2 a6 13.Qb3) 10.Be2= (10.h3 Ne5 11.cd5 ed5 12.Ne5 Be5 13.Be5) 10...h6 (10...a6 11.Nh4 Bg6 12.ba6 (12.Ng6 hg6 13.g3) 12...Ra6 13.Qc2=+ (13.d4=); 10...0-0 11.0-0 Rac8 12.Qb3 h6 13.h3) 11.Qb3 (11.0-0 0-0 12.Qc2 b6 13.h3) 11...a5 (11...0-0 12.0-0 Ne5 13.h3) 12.Rc1 (12.0-0 0-0 13.h3) 12...b6 (12...0-0 13.h3= (13.Qc2=)) 13.h3 (13.d4=; 13.Nh4=) 13...0-0-0 (13...0-0 14.cd5 ed5 15.Nd4=) 14.d4 (14.cd5 ed5 15.Nd4 Be6+–) 14...Kb8 (14...Be4 15.cd5 Bd5 16.Qc2+–) 15.Ba3 (15.cd5 ed5 16.dc5 Nc5+–) 15...Be4+= 16.Ne4 (16.0-0!?+=) 16...de4= (16...Ne4? 17.cd5 ed5 18.Qd5+–) 17.dc5 (better 17.Nd2!?=) 17...Nc5–/+ (17...Bc5?! 18.Nd4 Ne5 19.Bc5 Qc5 20.Qc3=) 18.Bc5 Bc5 (worse 18...Qc5 19.Nd4 Qb4 20.Qb4 Bb4 21.Kf1=; worse 18...bc5 19.Nd2+=) 19.Nd4 Bd4 20.ed4 Rd4 21.c5 (21.0-0 Rhd8–/+) 21...Nd7 22.c6 Nc5 23.Rc5 (23.Qe3 Rhd8–/+) 23...bc5 24.Qc3 Rhd8 25.0-0 (25.Qc5 Ra4 26.0-0 Rd6–/+) 25...R8d5 26.Rb1 Rb4 (better 26...f6!?–+) 27.Rb4=+ cb4 28.Qg7 Rd2 29.Qf8 Rd8 (29...Ka7 30.Bf1=+) 30.Qc5 (30.Qh6 Rd6=) 30...Rd5 (30...Rd6 31.Qe3=+) 31.Qe3 (31.Qf8 Ka7=) 31...f5 32.g3 (32.Qh6 Rd6=) 32...f4 (better 32...h5!?=+) 33.gf4+= Qg7 (better 33...Rd6+=) 34.Kh2 (better 34.Bg4!? Rd4 35.Kh2+=) 34...Qd4=+ 35.b6?? (better 35.Bc4! Qe3 36.fe3=+) 35...Qe3–+ 36.c7 (36.fe3 Rd2 37.Kg3 Re2 38.c7 Kc8–+) 36…Kb7 (36...Kb7 37.Ba6 Kb6 38.fe3 Kc7–+) 0–1. Hecimovic,Ivan (2245) – Franciskovic,Vinko (2060), 6th Open, Velika Gorica CRO, 2006.

8.Be2 A) 8...Nb6 9.cd5 (9.Na3 Bd6 10.Nh4 Be4 11.d3 Bg6 12.cd5 ed5 13.a5) 9...Nbd5 10.Nh4 Bb1 11.Qb1 Bd6 12.0-0 0-0 13.Nf3; B) 8...Be7 9.0-0 (9.Nh4 Bb1 10.Rb1 Ne4 11.Nf3 Bf6 12.cd5 ed5 13.0-0) 9...0-0 10.Nh4 Bb1 11.Rb1 Ne4 12.Nf3 Qa5 13.Qc2; C) 8...Bd6 9.Nh4 (9.Nc3 dc4 10.Bc4 0-0 11.0-0 Nb6 12.Be2 Nbd5 13.Qb3) 9...Bb1 10.Rb1 0-0 11.cd5 Nd5 12.Nf3 f6 13.Qc2.

8.h3 A) 8...Nb6 9.cd5 (9.g4 Bg6 10.Na3 Be4 11.cd5 Qd5 12.Be2 Rd8 13.Nb1) 9...Nbd5 10.Nh4 Be4 11.d3 c4 12.dc4 Nb4 13.Qd8; B) 8...dc4 9.Na3 (9.Bc4 Bd6 10.g4 Be4 11.Nc3 Bf3 12.Qf3 Ne5 13.Qe2) 9...c3 10.Bc3 Ne4 11.Bb2 h5 12.Nc4 Nb6 13.a5; C) 8...Bd6 9.Nc3 (9.Nh4 Be4 10.d3 Bg6 11.Be2 Be5 12.d4 cd4 13.ed4) 9...0-0 10.g4 Be4 11.g5 Ne5 12.Ne4 Nf3 13.Qf3.

6.b5 Bd6

7.a4 dc4 8.Bc4 a6 9.0-0 =.

7.a4 h6 8.Na3 (8.Nd4 Bg6=+) 8...0-0 (8...c5 9.Be2=+) 9.d4 (9.Be2!?=+) 9...Bb4–/+ 10.Nd2 Ne4 11.Nab1 Nd7 (11...Qf6 12.Qf3 Ng5 13.Qf4=+) 12.Be2 (12.Ba3 Qh4 13.g3 Qe7=+) 12...Qa5 (12...dc4 13.Bc4 cb5 14.ab5–/+) 13.Bc1 (13.Ba3 Ba3 14.Ra3 dc4 15.bc6 bc6=) 13...dc4 (better is 13...cb5 14.cd5 Nc3 15.Nc3 Bc3–/+) 14.0-0? (better is 14.bc6 bc6 15.Bc4–/+) 14...Nd2–+ 15.Nd2 Bd2?? (better is 15...c3 16.bc6 cd2 17.cd7 dc1B 18.Rc1 Rfd8–+) 16.Bd2=+ c3 17.Be1 (17.bc6!? bc6 18.Bc1=+) 17...cb5–/+ 18.ab5 Qc7 19.g4 (19.Qb3 Rfc8–/+) 19...c2 (19...Bg6 20.Rc1 c2 21.Qd2–/+) 20.Qd2 (20.Qc1 Be4–/+) 20...Bg6 21.Rc1 (21.Qc1 Rfc8–/+) 21...Nf6 22.h3 Rfc8–+ 23.f4 Ne4 24.Qb4 Nc3 25.Bc3 Qc3 26.Qc3 Rc3 27.Kf2 a6–+ 28.ba6 ba6 (The passed pawn on a6 quickly leads to threats) 29.h4 a5 30.h5 Be4 31.Bf3 Bf3 32.Kf3 a4 33.Ra1 a3 34.Rfc1 Rb8 35.Ke2 Rbb3 36.Kd2 Re3 37.Rc2?? Rbd3 38.Kc1 Re1# 0–1. Wall,Bill – Russell,Bob, San Antonio, TX USA, 1993.

7.Qa4 0-0 8.Be2 (8.Nd4 Bg6+=) 8...Nbd7 (8...dc4 9.Bc4 Nbd7 10.bc6+=) 9.cd5 cd5 (9...Nb6 10.Qh4 Nfd5 11.Qd8 Rad8 12.bc6 bc6 13.Nc3=) 10.0-0 Qe7 (10...Nc5 11.Qh4+=) 11.d4 (11.Rc1 e5+=) 11...Nb6 12.Qb3 Rfc8 13.Na3 (13.Ba3 Rc7+=) 13...Ne4–/+ 14.Rac1 Bg4 15.Nb1 Ng5 (15...Nc4 16.Bc4 Bf3 17.gf3 Qg5 18.Kh1–+) 16.Nbd2+= Qf6 (16...Nf3 17.Nf3 Bf3 18.Bf3+=) 17.Ba3 Bc7 18.Qd1 (18.Rfe1 Nf3 19.Nf3 Nc4 20.Bc4 Bf3 21.gf3 dc4 22.Rc4 Qg5 23.Kf1 Bh2=) 18...Qh6 (18...Nf3 19.Bf3 Bf3 20.Nf3+=) 19.Ne5 Be2 (19...Be5 20.de5 Rc1 21.Bc1 Be2 22.Qe2=) 20.Qe2= Be5 (20...f6 21.Ng4 Qg6 22.f4+=) 21.de5 Qg6 22.Nf3?? (better is 22.Bc5=) 22...Nf3–+ 23.Qf3 Qd3 (23...Nc4 24.Bb4–+) 24.Bb4 (24.Bc5 Qb5 25.Bb6 Qb6–/+) 24...Qb5 25.Rb1 (25.a3 Rc1 26.Rc1 Nc4–/+) 25...Qd7 (25...Rc2 26.Qg3 Qd7 27.a3–+) 26.Rfd1 (26.e4 Rc2–/+) 26...Rc4 (26...Rc2 27.a3–+) 27.Rd4 (27.a3 Rac8–/+) 27...Rac8 28.g3 (28.a3 Rc1 29.Rd1 Rb1 30.Rb1 Nc4–+) 28...Qa4 (28...Rc2 29.Rg4 g6 30.Rd4–+) 29.a3 Qc2 (29...Rc1 30.Rc1 Rc1 31.Kg2–+) 30.Rbd1 Qg6 (30...Rd4 31.ed4 Nc4 32.Qd3–+) 31.e4–/+ Rd4 32.Rd4 de4 (32...Nd7 33.ed5 Ne5 34.Qe2+=) 33.Re4 (33.Qe4 Qe4 34.Re4 Rc4–/+) 33...Nd5 34.Bd6 (34.Qg4 Qg4 35.Rg4 b5–/+) 34...h6 (better is 34...b5–/+) 35.Rg4? (better is 35.Qg4–/+) 35...Qb1–+ 36.Kg2 Rc1 (36...Rc3 37.Rb4 Qc2–+ (37...Rf3 38.Rb1 Rc3 39.Rb7+=)) 37.Be7?? (37.h4–+) 37...Rg1 38.Kh3 Qf1 39.Kh4 Ne7 (39...Ne7 40.Rg7 Kg7 41.Qf6 Kf8 42.Qh6 Kg8–+) 0–1. Querol Soro,Sergio (1975) – Gutierrez Minguenza,Ruben (2080), Aragon–chT Autonomico, 2007.

7.Qa4 Be4 8.Ne5 +=.

7.Nc3 h6 8.bc6 bc6 9.cd5 cd5 (9...ed5 10.Be2=) 10.Nb5+= Be7 (better is 10...0-0!?+=) 11.Rc1+– 0-0 12.Nc7 Nbd7 13.Na8 Qa8 14.Nd4 Bg6 15.Be2 Qb7 (15...Rc8 16.0-0+/–) 16.Qb3+– Nb6 (16...Qa8 17.Nc6 Bd6 18.Qb5+–) 17.0-0 Ne4 18.Nc6 Nc5?? (better is 18...Bf6 19.Bf6 Nf6+–) 19.Ne7 Qe7 20.Qc3 f6 (20...e5 21.Qc5 Qc5 22.Rc5+–) 21.Ba3 Nbd7 22.d4 (22...Rb8 23.Bc5 Nc5 24.Qc5+–) 1–0. MrkT – Namaste, internet, 2005.

7.bc6 Nc6 8.cd5 ed5 9.Bb5 0-0 10.Bc6 bc6 11.Nd4 Bg4 12.f3 Bd7 13.0-0 c5 14.Ne2 Rb8 15.Qc2 Bb5 16.Rd1?? (better is 16.Nbc3–/+) 16...Be2–+ 17.Re1 Ba6 18.Nc3 Be5 Black prepares the advance d4 19.Na4 d4 20.ed4 (20.Qc5 Nd7 21.Qd5–+) 20...cd4 (better is 20...Rb2 21.Nb2 Qd4 22.Kh1 Qb2 23.Qc5 Bd4–+) 21.Re5+= d3 22.Qc1 Bb5 23.Nc3 Qd4 24.Re3 Rfe8?? (24...Rfc8 25.Kh1+=) 25.Kh1?? (25.Nb5 Qb6 26.Bf6 Qf6+–) 25...Nh5?? (25...Bd7 26.Rb1 Qf4 27.Ne4 (27.Rd3? Bf5 28.Ne2 Re2–+) 27...Ne4 28.fe4+=) 26.Re8?? (better is 26.Nb5 Qb6 27.a4+–) 26...Be8+= 27.Rb1? (27.Qe1+=) 27...Qf6?? 28.Ne4 Qg6 29.Bc3 Rc8 30.Qf1 Nf4 31.g3 Ne2–/+ 32.Ba1 Bc6 33.Nc3? Re8 34.Re1?? Nd4 35.Re8+= Be8 36.Ne4 Bb5?? 37.Bd4+– f5 38.Nc3 Ba6 39.Nd1 f4 40.g4 h5 41.gh5 Qh5 42.Ba7 Bb7 43.Kg2?? Qa5?? 44.Bb8 Qd2? 45.Kg1 Bd5 46.Nf2 Bf3 47.Qd3 Qe3 48.Qd8 Kh7 49.Qd3 Kh6?? 50.Qe3+– fe3 51.Nd3 g5 52.a4 Be2 53.Ne1 g4 54.Kg2 Kh5 55.Kg3 Kg5 56.Bf4 Kf5 57.Be3 Bc4 58.Ng2 Bd5 59.Nf4 Ke4 60.Bf2 Bc6 61.a5 Kf5 62.Be3 Be4 63.h3 gh3 64.Nh3 Ke5 65.a6 Ba8 66.Nf4 Kd6 67.Nd3 Kc7 68.Kf4 Kb8 69.Ke5 Kc7 70.Nb4 Bg2 71.a7 Kb7 72.Kd6 Bh3 73.Na6! Ka8 74.Kc6 Bg4 75.Nc7 1–0. Valpa – Alauddin, playchess.de, 2005.

7.Be2 Qa5 8.Bc3 Qd8 9.0-0 (9.d3 dc4 10.dc4 0-0=) 9...0-0 (9...dc4 10.Bc4 a6 11.ba6+=) 10.d3 Nbd7 (10...dc4 11.dc4 Ne4 12.Bb2+=) 11.Nh4 Qc7 12.h3 (12.Nf5 ef5 13.bc6 bc6=) 12...Bg6 13.Ng6 fg6 14.a4 (14.bc6 Qc6 15.Nd2 Nb6=) 14...dc4 15.dc4 Ne4 16.Be1 (16.Bf3 Nc3 17.Nc3 Rad8=) 16...Rad8 (16...Bh2 17.Kh1 Be5 18.Ra2+=) 17.Qc2 Ndf6 (17...Bh2 18.Kh1 Be5 19.Ra2=) 18.Nd2 (18.Nc3 Bh2 19.Kh1 Be5=) 18...Nd2 (18...Bh2 19.Kh1 Be5 20.Ra3+=) 19.Bd2= c5 (19...a6 20.ba6 ba6 21.c5 Bh2 22.Kh1+=) 20.Bc3 (20.Rad1 g5+=) 20...Be5 (20...a6 21.Rad1+=) 21.Bf3 (21.Be5 Qe5 22.Bf3 Qc7+=) 21...Rf7 (21...Bc3 22.Qc3 e5 23.a5=) 22.Rad1 (22.Be5 Qe5 23.Rad1+=) 22...Rfd7 (22...Bc3 23.Rd8 Qd8 24.Qc3+/–) 23.Rd7 (23.Be5!? Qe5 24.Bb7+/–) 23...Rd7+= 24.Be5 Qe5 25.Rd1 Rd1 (25...Qf5 26.Qe2 e5 27.g4+/–) 26.Qd1+/– Qc7 27.g3 (27.a5 Qe7+/–) 27...Kf7 (27...Kf8 28.Qd3+/–) 28.Bg2 (28.a5 Kg8+/–) 28...b6 29.Qf3 (29.f4 e5+=) 29...Ke7 (29...Qd7 30.Kh2+=) 30.Qa8+/– Ne8 (30...Kf7 31.Bc6+/–) 31.Bc6 Nf6 32.f4 (32.e4 g5+/–) 32...h5 (32...g5!?+/–) 33.e4 (33.Kg2+–) 33...Nd7 (33...e5!? 34.Kg2 h4 35.fe5 Nd7 36.Bd7 Qd7+–) 34.Qg8+– Kf6?? (34...Qd6 35.Qg7 Kd8 36.Qd7 (36.Qg6?! Qd1 37.Kf2 Qc2 38.Ke3 Qc3 39.Ke2 Qc2 40.Kf3 Qd3 41.Kg2 Qe2 42.Kh1 Qf3 43.Kh2 Qf2 44.Kh1 Qf3 45.Kh2 Qf2 46.Kh1 Qf3=) 36...Qd7 37.Bd7 Kd7 38.Kf2+–) 35.e5 (better is 35.Bd7 Qd7 36.Qf8 Qf7 37.e5 Kf5 38.Qf7 Ke4 39.Qe6+–) 35...Ke7?? (better is 35...Ne5 36.fe5 Ke5+–) 36.Qg7 Ke8 37.Qg6 Ke7 38.Qh5 Nf8 (38...Kf8 39.Qh8 Kf7 40.Qh7 Ke8 41.Qg8 Ke7 42.Qg7 Kd8+–) 39.Qe8 1–0. Bousios,Hristos – Missias,Ath, Greece, 1976.

7.a4 0-0

8.Nc3 a6 =+.

8.Nc3 Nbd7 9.Be2 e5 10.0-0 Qe7 11.d4 e4 12.Nd2 Rfd8 13.Qb3 Nf8 14.c5 (14.g3 Bb4=) 14...Bc7= 15.Ba3 (15.a5 a6 16.bc6 bc6=) 15...Ng4 (15...Ne6 16.h3+=) 16.g3 (16.h3!? Nh2 17.Rfb1=) 16...h5 (16...Ne6+=) 17.Qd1? (17.a5 Ba5 18.Bb2 Bc7+=) 17...Qg5 (17...Ne6 18.h4–/+) 18.Bg4 (18.a5!?+=) 18...Bg4 19.Qc1 (19.Qb3 Ne6 20.h4 Qh6–/+) 19...Ng6 Black plans h4 (19...h4 20.Re1–+) 20.f4 ef3 21.Nf3 Bf3 22.Rf3 h4 23.Qe1 (23.b6 Bb8 24.Kf2 Qg4–+) 23...hg3 24.hg3?! (24.Rg3 Bg3 25.Qg3 Qh5–+) 24...Nh4 25.Rf1 (25.Rf4 Bf4 26.ef4–+) 25...Bg3 26.Qe2 Re8 (better is 26...Be1 27.Kh1 Bc3 28.Rac1–+) 27.e4 (27.Kh1 Nf5 28.Rf5 Qf5–+) 27...de4 (better is 27...Be1 28.Kh1 Bc3–+) 28.Nd1 (28.bc6 Bf4 29.Kh1–+) 28...e3 (28...Bf4 29.Kh1 Nf3 30.Nf2 Qh4 31.Nh3 Qh3 32.Qh2 Qh2) 29.Qc2 0–1. Khomushku,Ajush – Marchuk,Rostislav (1860), Novokuznetsk RUS, SFO Ch U15 (b), 2014.

8.d3 dc4 9.dc4 Ne4 10.Nfd2 –/+.

8.d3 Nbd7 9.Be2 ½–½. Hofmann,Philipp – Victor,Stefanie, DSSM WK2, 2002.

8.d4 Qa5 9.Nbd2 Bb4–/+ 10.Be2 Ne4 11.Ra2 Nd7 12.Ba1 Bg4 13.0-0=/+ Nd2 14.Nd2 Be2 15.Qe2 ½–½. Urban,Bohumil – Dankova,J, Brno KOLT 2nd, 1969.

8.d4 Bb1–/+ 9.Qb1 Bb4 10.Kd1 Ne4 11.Qc2 Ba5 (11...Nd7!?+=) 12.Bd3= f5 13.c5 (13.Ke2 Nd7=) 13...Bc7 (13...Nd7 14.h4+=) 14.Ba3 (14.h4!?=) 14...Nd7–/+ 15.g3 (15.Rb1 Ndf6 16.h3 Ba5+=) 15...Rf7 (15...Ndf6 16.h3 Qe8+=) 16.Ng1 (16.Bb2 Qf6+=) 16...Nf8 (better is 16...Qg5!?–+) 17.Bb2 (17.Nf3 Qf6+=) 17...Ng6 (17...Qg5 18.Qe2+=) 18.f3 (18.Nf3=) 18...Nf6 (18...Qg5!? 19.bc6 bc6 20.fe4 fe4=) 19.Nh3+= Nd7 20.Ke2 (20.a5 a6 (worse is 20...Ba5 21.Qa4 Bc7 22.bc6 bc6 23.Qc6+/–) 21.b6 Bb8+=) 20...Qf6 (20...e5 21.Bf5 Qf6+=) 21.f4+= Qe7 (21...h6 22.Kf2+=) 22.Ng5 (22.a5 cb5 23.c6 bc6 24.Qc6 Qd8+–) 22...Rf6 23.h3 (23.h4 h6 24.Nf3 Qe8+/–) 23...h6+= 24.Nf3 Nh8 (24...Rff8!?+=) 25.g4 (25.a5 cb5 26.Bb5 Nb8+–) 25...g6 (25...Rff8 26.Rhg1+/–) 26.Rag1 Kf8 (26...Rff8 27.h4 Nf6 28.bc6 bc6 29.g5+–) 27.Ke1 (27.h4 Rf7+–) 27...Rf7 28.Qg2 (28.h4!? Nf6 29.g5 Ng4+–) 28...Rg7 (28...Nf6 29.gf5 ef5 30.Ne5 Be5 31.de5+/–) 29.Bc3 (29.h4+/–) 29...Qf7? (29...Nf6 30.bc6 bc6 31.gf5 ef5 32.Ne5+=) 30.Qf2 (30.h4 fg4 31.Ne5 Ne5 32.fe5 Kg8 33.Qg4 Qe7+–) 30...Ke7? (better is 30...Nf6!?+/–) 31.Rg2 (31.Ke2 Kf8+–) 31...Rag8 (31...Kf8 32.Rhg1+–) 32.Rhg1 (32.Qb2 Rb8+–) 32...Kd8 (32...Nf6+–) 33.Qb2 cb5 (33...Qf6 34.a5 cb5 35.Bb5+–) 34.ab5 (better is 34.Qb5 Qf6 35.Bb4 fg4 36.hg4 b6 37.cb6 Nb6+–) 34...h5 (34...g5 35.gf5 ef5 36.fg5+–) 35.g5 (35.gh5 Qf6 36.h6 Rh7+–) 35...Bb8 (35...Qe8 36.Qa3 Bb8 37.Bb4+–) 36.Rc2 Nf8 (36...Rh7 37.Bb4+–) 37.Ba5 b6 (37...Ke8 38.b6 a6 39.Ba6 Qe7 40.Qb5 Nd7 41.Bb7 Kf8+–) 38.cb6 ab6 39.Bb6 Ke7 40.Ne5 (40.Ne5 Qe8 41.Qa3 Bd6 42.Rc7 Nd7 43.Bc5+–) 1–0. Husarik,Branko (1705) – Kastner,Kamil, Czech–ch U16, 2000.

8.Nd4 Be4 9.d3 Bg6 =+.

8.Be2 dc4 9.Bc4 cb5 10.ab5 =+.

8.Be2 dc4 9.Bc4 Nbd7 10.0-0 =+.

8.Be2 dc4 9.Bc4 Nbd7 10.Nc3 +=.

8.Be2 Re8 9.Be5 Be5 10.Ne5 Bb1 (10...cb5 11.ab5 Nbd7 12.d4+=) 11.Qb1 Ne4 12.Qc2?? (better is 12.Bd3 f5 13.Be4 fe4 14.0-0=) 12...Qf6–+ 13.f4 Qh4 14.g3 Ng3! 15.Nf3 (15.hg3 Qh1 Pinning (15...Qh1 Deflection)) 15...Qf6 16.hg3 Qa1 17.Bd1 Nd7 (better is 17...h6–+) 18.Qh7–/+ Kf8 19.Ng5 (better is 19.bc6!? bc6 20.Nd4+=) 19...Ke7–+ 20.Qh5 g6 21.Qf3 (21.Qh7 Rf8–+) 21...Rh8 (21...dc4 22.bc6 Nc5 23.cb7+/–) 22.Rh8 Rh8 23.bc6 bc6 24.cd5 cd5 25.e4 (25.g4 Nc5 26.Nh3 Qc1–+) 25...Qd4 (25...f6 26.ed5 fg5 27.de6–+) 26.ed5 (26.Qa3 Ke8 27.Nf3 Qe4 28.Kf2 Rh1–+) 26...Qd5 (better is 26...Qg1 27.Ke2 Nc5 28.d6 Kd7–+) 27.Qd5 ed5 28.Bb3 Nf6 29.Ke2 (29.Nf3–+) 29...Rh2 30.Ke3 Rg2 31.Kd4 (31.d4 Rg3 32.Nf3 Kd6–+) 31...Rd2 32.Ke3 Rb2 33.Bd1 Ra2 0–1. Toth,Tamas (2020) – Galamba,Stanislav (2120), Gyongyos Matra Cup, 2003.

8.Be2 Nbd7

9.0-0 a6 10.Nc3 (10.d4 dc4 11.bc6 bc6=) 10...e5 (10...ab5 11.ab5 Ra1 12.Qa1 dc4 13.bc6 bc6 14.Bc4=+) 11.cd5 (11.d4 ab5 12.c5 b4 13.cd6 bc3 14.Bc3 Ne4=) 11...cd5 (11...Nd5? 12.e4 ab5 13.ef5 (13.ed5?! b4+–) 13...ba4 14.Ra4 Ra4 15.Qa4+–) 12.d3 (12.ba6 ba6 13.Ba3 Ba3 14.Ra3 Qe7=+) 12...Rc8 (12...Qb8 13.ba6 ba6 14.Rb1=+) 13.Qb3 (13.d4 e4 14.Nh4 Be6=+) 13...Nc5=+ Black prepares the advance e4 14.Qd1 e4 (14...d4 15.ed4 ed4 16.Nb1=+ (worse 16.Nd4 Bh2 17.Kh2 Qd4–/+)) 15.Nd4 (15.Nh4 Be6 (worse 15...ed3 16.Nf5 de2 17.Ne2+=) 16.d4 Ncd7=+) 15...ed3 (15...Bg6 16.de4 de4=+ (worse 16...Be4 17.Ne4 de4 18.Nf5+=)) 16.Nf5+= de2 17.Qe2 (17.Ne2 Re8+=) 17...Bb8 (17...Re8 18.Rfd1=) 18.Qf3 (better 18.Rfd1 Qc7 19.g3+–) 18...g6?? (better 18...Qc7 19.Qg3 Qg3 20.Ne7 Kh8 21.hg3 Rcd8+=) 19.Nh6 (better 19.Nd5 gf5 20.Nf6 Kg7 21.Qf5 Rh8+–) 19...Kg7 20.Nd5 Kh6 (20...Ncd7 21.Nf6 Ne5+–) 21.Bf6 (21.Bf6 Qf6 22.Qf6+–) 1–0. GuestQVZS – GuestTFYT, freechess.org, 2018.

9.0-0 cb5 10.cb5 Rc8 11.Nc3=+.

9.0-0 Qc7 10.cd5= cd5 11.Nc3 Rac8 12.Rc1 Qb8 13.h3 (13.a5 e5=) 13...h6 (13...e5 14.a5=) 14.d4 (14.Nd4 Bg6=) 14...Rc7 (14...Nb6 15.Nd2=) 15.a5 (15.Qb3 Rfc8=) 15...Rcc8 (15...b6 16.ab6 Qb6 17.Na4=) 16.Qb3 b6 (16...Rc7 17.Ba3 Ba3 18.Qa3=) 17.a6 Rc7 18.Ba3 Ba3 19.Qa3 Rfc8 20.Rfe1 Ne4 21.Na2 f6 (21...Qa8 22.Rc7 Rc7 23.Rc1 Rc1 24.Qc1+=) 22.Nb4 Rc3 23.Qb2 Rc1 24.Rc1 Rc1 25.Qc1 Nf8 26.Nd2 (26.Nc6 Qc7+/–) 26...Qd6 (26...Nd2 27.Qd2 Qc7 28.Nc6+=) 27.Nc6 Nd2 (better is 27...Qc7+/–) 28.Na7 (28.Qd2 Qd7 29.Qb4+–) 28...Ne4?? (28...Qd7 29.Nc6 Ne4 30.Qa3=) 29.Nc6?? (better is 29.Nc8 Qb4 30.a7+–) 29...Nd7?? (better is 29...Qd7 30.Qa3 Qe8=) 30.a7+– Qf8 31.Nb8! (31...Nb8 32.a8Q+–) 1–0. Mehlhorn,U – Mergel,H, BFO–072, 2000.

9.0-0 Qc7 10.cd5 ed5 11.h3 (11.d3 Rfe8=) 11...h6 (11...Rfe8 12.Nc3=+) 12.d4 (12.Nc3 Rfe8=) 12...Ne4 (12...Rac8 13.Nc3=) 13.Nbd2 (13.Ba3 Rac8=) 13...Ndf6 (13...Rfc8 14.Rc1=) 14.Ne4 (14.bc6 bc6 15.Ne4 Ne4=) 14...Ne4 (14...de4 15.Ne5=) 15.Qb3 Rab8 (15...a6 16.Ba3=) 16.Ba3 Qd7 (16...Ba3 17.Ra3 Qd6 18.Raa1=) 17.Bd6 (17.Rfc1 Ba3 18.Ra3 Qe6=) 17...Qd6 18.Rac1 (18.Bd3 c5 19.Be4 c4=) 18...Bg6 (18...Rfc8 19.b6 Ra8 20.a5=) 19.Bd3 (19.b6 Ra8=) 19...f5 (19...Rfc8!?=) 20.bc6 bc6 21.Qc2 (21.Qa2 Kh7+=) 21...Rbc8 (21...Rfc8 22.Ne5+=) 22.Ne5+– Be8 23.Be4 fe4 24.Qc5 Qc7 25.a5 Rf5 (25...Rf6 26.f3 ef3 27.Rf3 Rf3 28.gf3+–) 26.Rb1 (26.a6 Rd8+–) 26...Re5 (26...Rb8!?+–) 27.de5+– Qe5 28.Qa7 Bf7 (better 28...c5+–) 29.Qb7 Be6 30.a6 Qg5 31.a7 Bh3 (31...Kh7 32.Kh2 Qe5 33.Kh1 Bh3+–) 32.Qc8!! Bc8 33.a8Q 1–0. DEFFM – GuestXQZY, freechess.org, 2018.

9.0-0 e5 10.d4 e4 11.Ne5 Re8 (11...Qc7 12.bc6 bc6 13.Nd7 Bd7 14.h3=+) 12.bc6 Ne5 (12...bc6!? 13.g4 Be6=) 13.de5+= Be5 14.Be5 Re5 15.cb7 Rb8 16.Nc3 Rb7 17.Nd5 (better 17.Qd4!? Ree7 18.Rfd1+/-) 17...Nd5= 18.cd5 Rd5 19.Qc2 Rbd7 20.Rad1 Rd2 21.Rd2 Rd2 22.Qc4 Be6 23.Qb5 Bd7 24.Qa6 Bc8 25.Qc4 Be6 26.Qa6 (26.Qb5 Qc8=+) 26...Bc8 27.Qc4 Be6 28.Qb5 Bd7 29.Qb4?? (better 29.Qa6=) 29...Re2-+ 30.Rd1 Qe8?? (30...h6 31.Qe4 Qf6 32.Qa8 Kh7 33.Qe4 g6 34.Rf1-+) 31.h3?? (better 31.Rd7 Re1 32.Qe1 Qd7 33.Qa1=) 31...Ba4 (31...Rc2 32.a5 a6 33.Qb6-+) 32.Ra1? (better 32.Qa4 Re1! 33.Kh2 Qe5 34.g3 Rd1 35.Qd1-/+) 32...Bb5 33.Ra7 Rc2?? (better 33...Bc6-+) 34.Re7?? (better 34.Qb5 Rc8 35.Qe8 Re8 36.f4=) 34...Qc8 (better 34...Rc1 35.Kh2 Qb8 36.g3 Rc2-+) 35.Qe4?? (better 35.Qb5 Kf8 36.Re4+/-) 35...Rc1 36.Kh2 g6 37.Re5 (37.Qe5 Rc5 38.Qf4 Qf5-+) 37...Bd7 38.f4? (38.Re7 Qc7 39.Qe5 Kf8-+) 38...Be6 (38...Bc6 39.Qd4 Rh1 40.Kg3 Bg2 41.Re8 Qe8 42.Kg2 Qc6 43.e4 Rb1 44.Qd8 Kg7 45.Qd4 Kh6-+) 39.Qd4 Rc4 40.Qd2 (40.Qd6-+) 40...Rc2 41.Qe1 (41.Qd3 Bh3 42.Re8 Qe8 43.Qc2 Bf5-+) 41...Qc6 (better 41...f6 42.Rb5 Bh3 43.Qb1 Rg2 44.Kh1-+) 42.e4 Bf5 (better 42...f6 43.Ra5 Rc4 44.Ra7 Re4 45.Qd2-+) 43.Qf1? (43.Rd5 Qe8 44.Rd4-+) 43...Be4 44.Rg5 Rg2! 45.Rg2 Bg2 46.Qg2 Qg2 47.Kg2 1-0. BeepBeepImAJeep (2590) - shtormie (2215), lichess.org, 2015.

9.0-0 e5 10.d4 e4 11.Nh4 Be6 12.g3 (12.c5!? Bb8 13.f4=) 12...h6 (12...dc4 13.bc6 Qb6 14.cb7 Qb7–/+ (worse is 14...Qb2 15.ba8R Ra8 16.Nd2+=)) 13.c5= (13.c5 Be7 14.Nd2=). algernon (2560) – korpsion, net–chess.com, 2016.

9.bc6 bc6 10.Nd4 Be4 =+.

9.d4 dc4 10.Bc4 Rc8 11.Nbd2 Nb6 12.Be2 cb5 13.ab5 Bc2 14.Qc1 Bd3 15.Qd1 (15.Bd3 Rc1 Discovered attack) 15...Be2 16.Qe2 Rc2 17.Bc1 Nbd5 18.0-0 Qb6 19.e4 (19.Ba3!? Ba3 20.Ra3–/+) 19...Nf4–/+ 20.Qe3 Rfc8 21.e5 N6d5 22.Qe4 f5 23.ef6 (23.Qc2 Rc2 24.ed6 Qd6 25.Ba3–+) 23...Nf6 (23...gf6?! 24.Kh1 f5 25.Qe1–+; 23...Qb5 24.f7 Kf7 25.Rb1 Ne2 26.Kh1+=) 24.Qe3 R2c3 (24...Qb5?! 25.Ba3 R8c3 26.Bd6 Re3 27.fe3 Ne2 28.Kh1–+) 25.Qe1 Rc1! (25...Qb5?! 26.Rb1 Qf5 27.Bb2–+) 26.Rc1 (26.Rc1 Nd3 Double attack (26...Nd3 Decoy); 26.Qc1 Ne2 Double attack (26...Ne2 Decoy)) 26...Rc1 27.Qe3 Rf1 28.Nf1 Qb5 0–1. Vysniauskas,Vaidas – Rupsys,Antanas, Baltic New ICCF Players Tournament, 2005.

8.Be2 h6

9.0-0 dc4 10.Bc4 cb5 11.ab5 =.

9.0-0 Re8

10.Na3 a6 A) 11.d4 b6 12.Ne5 Be5 13.de5 Ne4 14.Rc1 Qd7 15.f3 Nc5 16.Ra1 ab5=; B) 11.Nd4 Bg6 (11...Bh7 12.f4 ab5 13.ab5 Qe7 14.Qb3 Rd8 15.Nac2 dc4 16.Bc4 Ra1=) 12.f4 Qc7 13.Nf3 Nbd7 14.d4 c5 15.Rc1 Qa5 16.Bc3 Qd8=; C) 11.Nh4 Bh7 12.Nf3 ab5 13.ab5 Ba3 14.Ba3 dc4 15.Bc4 Bd3 16.Bd3 Qd3=; D) 11.Qc1 Ne4 (11...c5 12.d4 Nbd7 13.cd5 ed5 14.dc5 Nc5 15.Qd1 Be4 16.Rc1 Ng4+=; 11...Nbd7 12.d4 Ne4 13.c5 Bb8 14.Nc2 Bg4 15.b6 e5 16.Nce1 Qe7+=; 11...ab5 12.ab5 c5 13.d4 Nbd7 14.cd5 ed5 15.dc5 Nc5 16.Qd1 Be4=; 11...cb5 12.c5 b4 13.cd6 ba3 14.Bf6 Qf6 15.Qc7 Ra7 16.d4 Nc6+=) 12.Nd4 Bg6 13.d3 Nc5 14.Qc2 e5 15.Nf3 Nbd7 16.bc6 bc6+=; E) 11.d3 ab5 12.ab5 Qe7 13.Qb3 e5 14.bc6 bc6 15.cd5 cd5 16.Nb5 Nbd7=.

10.Na3 e5 11.c5 (11.d4 e4 12.Ne5 Nbd7 13.bc6 bc6 14.Nc6 Qb6 15.cd5 Nd5 16.Rc1 Rec8=) 11...Bc5 12.Be5 Re5 13.Ne5 Qd6 14.bc6 bc6 15.Qb3 Nbd7 16.Nd7 Qd7 +/–.

10.Na3 Qe7 A1) 11.d4 Ne4 (11...Bc7 12.bc6 Nc6 13.Nb5 Bb8 14.Rc1 Rc8 15.Ne5 a6 16.Na3 Ne5+=; 11...Nbd7 12.a5 Ne4 13.c5 Bc7 14.a6 Reb8 15.Ra2 ba6 16.bc6 Ndf6+=; 11...Rc8 12.c5 Bc7 13.Nb1 Ne4 14.Nbd2 Qf6 15.Ne4 Be4 16.Nd2 Bf5=) 12.c5 Bc7 13.Bd3 Bg4 14.Nb1 b6 15.h3 Bh5 16.cb6 ab6+=; B) 11.bc6 bc6 (11...Nc6 12.Nb5 Bb8 13.Rc1 Rc8 14.Nfd4 Nd4 15.Nd4 Bg6 16.f4 dc4=) 12.d4 Nbd7 13.Ne5 Rec8 14.cd5 ed5 15.Nd7 Nd7 16.Bd3 Bd3+=; C) 11.Nd4 Bg6 (11...Bh7 12.f4 e5 13.fe5 Be5 14.Qc1 c5 15.Nf5 Bf5 16.Rf5 d4+=; 11...Be4 12.d3 Bg6 13.Nf3 Nbd7 14.d4 c5 15.cd5 ed5 16.dc5 Nc5=) 12.f4 e5 13.fe5 Be5 14.Qc1 c5 15.Nf5 Bf5 16.Rf5 d4+=; D) 11.a5 Rc8 (11...Bg4 12.h3 Bf3 13.Bf3 a6 14.b6 e5 15.d4 ed4 16.Qd4 Nbd7+=; 11...e5 12.d4 ed4 13.Qd4 a6 14.b6 c5 15.Qd1 d4 16.Bd3 de3=) 12.Qb3 Nbd7 13.d4 c5 14.cd5 ed5 15.dc5 Nc5 16.Qd1 Be4=.

10.Na3 Bg4 A) 11.Ne5 Be2 12.Qe2 Nfd7 13.d4 Be5 14.de5 Qa5 15.Nb1 Qc7 16.f4 dc4=; B) 11.h3 Bh5 (11...Bf5 12.d4 Ne4 13.c5 Bc7 14.Bd3 Qf6 15.Rb1 Nd7 16.Qe2 Qg6=; 11...Bf3 12.Bf3 Ba3 13.Ra3 dc4 14.Rc3 e5 15.Rc4 Qb6 16.bc6 Nc6+=; 11...Ba3 12.Ra3 Bf3 13.Bf3 dc4 14.Rc3 e5 15.Rc4 Qb6 16.bc6 Nc6+=) 12.Qc2 e5 13.c5 e4 14.Nd4 Be2 15.Ne2 Be7 16.Nf4 Nbd7=; C) 11.d3 e5 (11...Nbd7 12.h3 Bh5 13.d4 Ne4 14.c5 Bc7 15.Rb1 Qf6 16.Qc2 Rab8=) 12.h3 Bh5 13.Rb1 Qe7 14.bc6 bc6 15.Nc2 Nbd7 16.d4 e4+=; D) 11.Rc1 Qe7 12.bc6 bc6 13.Nc2 e5 14.d4 e4 15.Ne5 Be2 16.Qe2 Qb7=; E) 11.Qc2 c5 (11...Nbd7 12.d3 e5 13.Rfb1 Bf5 14.bc6 bc6 15.cd5 cd5 16.Nb5 Bf8=) 12.h3 Bf5 13.d3 Nbd7 14.Rab1 Qc7 15.Qd2 Rad8 16.a5 b6=.

10.Nc3 a6 A) 11.d3 dc4 (11...Qc7 12.cd5 ed5 13.Qc2 b6 14.Rfc1 ab5 15.ab5 Ra1 16.Ra1 c5=; 11...cb5 12.cb5 e5 13.d4 e4 14.Nd2 Bc7 15.Qc2 Qd6 16.g3 Qe6+=; 11...ab5 12.ab5 Ra1 13.Qa1 e5 14.Qa7 dc4 15.dc4 Qe7 16.Rd1 cb5=; 11...b6 12.cd5 ed5 13.Qb3 Be6 14.Nd4 Qc7 15.h3 Rc8 16.Rfc1 Qb7=; 11...Qe7 12.Qb3 dc4 13.dc4 Nbd7 14.Ba3 c5 15.a5 e5 16.Rfd1 e4=) 12.dc4 Qe7 13.a5 e5 14.b6 Nbd7 15.Nh4 Bh7 16.Nf3 Rad8+=; B) 11.d4 cb5 (11...dc4 12.Bc4 Qc7 13.Bd3 Bd3 14.Qd3 Ng4 15.h3 Nh2 16.Nh2 Bh2=; 11...b6 12.Ne5 Qc7 13.a5 ba5 14.c5 Be5 15.de5 Qe5 16.b6 Nfd7=) 12.c5 b4 13.Na2 Be7 14.Nb4 b6 15.Nd3 Bd3 16.Qd3 bc5+=; C) 11.Qb3 Nbd7 (11...cb5 12.ab5 dc4 13.Bc4 Bg4 14.Be2 Nbd7 15.d4 Qb8 16.Ba3 Bc7=; 11...Qd7 12.d3 cb5 13.cb5 Bg4 14.Rfc1 Rc8 15.a5 Qe7 16.h3 Bf3=; 11...Re7 12.cd5 ed5 13.d3 Be6 14.Nd4 Bc8 15.bc6 Nc6 16.Nd1 Na5=; 11...dc4 12.Bc4 Re7 13.d3 Bg4 14.Nd2 Bf5 15.Nce4 Ne4 16.Ne4 Be4+=) 12.d4 dc4 13.Bc4 Qc7 14.Rfc1 Bg4 15.bc6 bc6 16.h3 Bf3=; D) 11.Nd4 Bh7 (11...Bg6 12.f4 c5 13.Nb3 d4 14.Nb1 e5 15.f5 Bh7 16.Qc2 Qc7=; 11...dc4 12.Nf5 ef5 13.bc6 Nc6 14.Bc4 Rc8 15.Rc1 Qb6 16.Ba1 Qc7=) 12.f4 c5 13.Nb3 d4 14.Nb1 e5 15.fe5 Be5 16.Nc5 ab5+=; E) 11.cd5 ed5 12.d3 ab5 13.ab5 Ra1 14.Qa1 c5 15.Qa4 Nbd7 16.Ra1 Ne5=.

10.Nc3 dc4 11.Bc4 Re7 (11...a6 12.d3 ab5 13.ab5 Ra1 14.Qa1 Bg4 15.Nd2 Bc7 16.Nce4 Nbd7+=; 11...e5 12.d3 a6 13.Qb3 Re7 14.Rfc1 Bg4 15.Nd2 Be6 16.Be6 Re6+=; 11...Qd7 12.d3 Rc8 13.Rc1 Bg4 14.Ne4 Ne4 15.de4 cb5 16.ab5 Bc7=; 11...Bg4 12.h3 Bh5 13.d4 a6 14.Qe2 Qc7 15.Bd3 ab5 16.ab5 Nbd7+=; 11...Nbd7 12.Rc1 Rb8 13.d4 Qa5 14.Bd3 Bd3 15.Qd3 Nb6 16.e4 Bb4=) 12.d3 e5 13.Ne4 Ne4 14.de4 Be4 15.Be5 Rd7 16.Bd6 Rd6 =.

10.Nc3 Qd7 A) 11.d4 dc4 12.Ne5 Qc7 13.bc6 bc6 14.f4 Nbd7 15.Nc4 Bb4 16.g4 Bh7=; B) 11.cd5 cd5 (11...ed5 12.a5 a6 13.bc6 bc6 14.d4 Bc7 15.Ra4 Qd8 16.Qb3 Nbd7=) 12.Rc1 e5 13.a5 Qd8 14.a6 ba6 15.ba6 Bg4 16.h3 Bh5=; C) 11.d3 Qe7 (11...e5 12.d4 e4 13.Ne5 Qe6 14.bc6 bc6 15.Rb1 Rc8 16.Qd2 a6=; 11...Rc8 12.Qb3 dc4 13.dc4 Qc7 14.bc6 bc6 15.Ba3 Ba3 16.Qa3 Rd8=; 11...a6 12.Qb3 cb5 13.cb5 Bg4 14.a5 Rc8 15.Rfc1 Qe7 16.h3 Bf3=; 11...dc4 12.dc4 e5 13.a5 Rd8 14.Qa4 Qc7 15.Rfd1 Nbd7 16.Ba3 Nc5=; 11...Bg4 12.h3 Bf5 13.d4 dc4 14.Ne5 Qe7 15.Nc4 Bb4 16.Na2 cb5+=) 12.cd5 ed5 13.a5 a6 14.b6 c5 15.Ba3 Nc6 16.d4 c4=; D) 11.a5 e5 (11...dc4 12.Bc4 e5 13.d3 Be6 14.a6 ba6 15.Be6 Qe6 16.ba6 Nbd7=; 11...Rc8 12.Nd4 Bg6 13.cd5 ed5 14.Re1 c5 15.Nf3 Qe6 16.d3 a6=; 11...Bg4 12.d3 e5 13.a6 dc4 14.ab7 Qb7 15.dc4 Qc7 16.e4 a6+=; 11...Ne4 12.Nd4 Bg6 13.Ne4 de4 14.f4 e5 15.Bg4 Qd8 16.a6 ba6=; 11...Qe7 12.Nd4 Bg6 13.f4 Bc5 14.f5 Bh7 15.bc6 Nc6 16.Nc6 bc6=) 12.cd5 cd5 13.Rc1 Qd8 14.a6 ba6 15.ba6 Bg4 16.h3 Bh5=; E) 11.Rc1 Bg4 (11...a6 12.b6 e5 13.cd5 cd5 14.d4 e4 15.Ne5 Qe6 16.a5 Rc8=; 11...dc4 12.Bc4 e5 13.d3 Be6 14.Qb3 Bc4 15.Qc4 cb5 16.Qb5 Nc6=) 12.cd5 ed5 13.d3 a6 14.b6 c5 15.a5 Qe6 16.h3 Bf5=.

10.d4 dc4 A) 11.Bc4 cb5 (11...Nbd7 12.bc6 bc6 13.Qe2 Rb8 14.Rc1 Nb6 15.Nbd2 Ne4 16.Ba3 Ba3=; 11...a6 12.Ne5 ab5 13.ab5 Ra1 14.Ba1 Qb6 15.Nc3 Rc8 16.Qf3 cb5=; 11...Qc7 12.Qb3 Ng4 13.h3 Nh2 14.Nh2 Bh2 15.Kh1 Bd6 16.Nc3 Qd7=; 11...Qe7 12.Ba3 Rc8 13.Bd6 Qd6 14.Qe2 Nbd7 15.Nbd2 e5 16.bc6 Rc6+=; 11...Ne4 12.Nc3 Nc3 13.Bc3 cb5 14.Bb5 Nc6 15.Qe2 Rc8 16.e4 Bg4=) 12.ab5 Nbd7 13.Ba3 Bc7 14.Qb3 Nb6 15.Bd3 Bd3 16.Qd3 e5=; B) 11.Nc3 Nbd7 (11...a6 12.Bc4 Qc7 13.Bd3 Bd3 14.Qd3 Ng4 15.h3 Nh2 16.Nh2 Bh2=; 11...Nd5 12.Bc4 Nd7 13.bc6 bc6 14.Bd3 Rb8 15.Bf5 Rb2 16.Qc1 Rb3=; 11...Qc7 12.bc6 Qc6 13.Nb5 Ne4 14.Rc1 a6 15.Nd6 Qd6 16.Bc4 Qb4+=; 11...cb5 12.Nb5 Be7 13.Bc4 Nc6 14.Rc1 a6 15.Nc3 Rc8 16.Bd3 Bd3=; 11...Bg4 12.Bc4 a6 13.h3 ab5 14.ab5 Ra1 15.Ba1 Bf5 16.Ne5 c5=) 12.bc6 bc6 13.Bc4 Qa5 14.Qe2 Rab8 15.Nh4 Bh7 16.Rfc1 e5+=; C) 11.Nbd2= c3 (11...cb5 12.ab5 c3 13.Bc3 Ne4 14.Ne4 Be4 15.Nd2 Bf5 16.Nc4 Be7+=) 12.Bc3 cb5 13.Bb5 Nc6 14.Nc4 Rc8 15.Rc1 Nd5 16.Qb3 a6=.

10.d4 Nbd7 11.Nc3 dc4 12.bc6 bc6 13.Bc4= Qa5 14.Qe2 Rab8 15.Rfc1 Bg4 16.Nd1 Nb6 +=.

10.d4 Nbd7 11.Nc3 Rc8 12.c5 Bb8 13.a5 (13.bc6 Rc6 14.a5 (14.Rc1 Bg4 15.Bb5 Rc8 16.h3 Bf5=) 14...a6= 15.Na2 Qe7 16.Qb3 Nf8+=; 13.Rc1 Qc7 14.bc6 bc6 15.Re1 Ne4 16.Ba6 Rcd8=) 13...Qe7 (13...cb5!? 14.Bb5 Qc7= 15.a6 Bg4 16.g3 b6=) 14.a6+= Nf8 15.b6 ab6 (15...ba6 16.Ba6 Rcd8+=) 16.cb6 ba6 (16...Bd6 17.a7+=) 17.Ra6 (17.Ba6 Rcd8+/–) 17...N8d7+= 18.Qa4 e5 19.Ba3 Qe6 20.de5 Ne4 21.Ne4 Be4 22.Nd4 Qe5 (22...Qg6 23.g3 Ne5 24.Rc1+/–) 23.f4 Qf6 24.b7 Rc7 25.Nc6?? (better is 25.Rc6 Qd8 26.Rc7 Qc7 27.Qb5+–) 25...Qc3+= 26.Kf2 (26.Bc1 Nc5 27.Qb4 Qb4 28.Nb4 Rb7–/+ (28...Nb7?! 29.Bf3=)) 26...Bc2–/+ (26...Rb7?! 27.Nb8 Reb8 28.Rc1=) 27.Qd4 Rc6 28.Rc6 (28.Bb2 Qd4 29.Bd4 Rc7–/+) 28...Qc6 29.Rc1 Qg6 (29...Qb7 30.Bb2 Nf6 31.Rc2–+) 30.Bb5 Be4 31.Bd7?? (31.Rc8 Qg2 32.Ke1 Qg1 33.Kd2 Qh2 34.Be2+–) 31...Qg2–+ (31...Bg2?? 32.Rc8 Kh7 33.Be8+–) 32.Ke1 Bf3 33.Bb5 Qg1 34.Kd2 Qf2 35.Kc3 Re3 36.Bd3 Be2 37.Kb4 (37.Bc5 Rd3 (37...Bd3? 38.Qe3 Qe3 39.Be3+–) 38.Qd3 Qc5 39.Kd2 Qc1 (39...Bd3 40.Rc5 Bf4 41.Kd3+–) 40.Ke2 Qb2 41.Kf3 Qb7–+) 37...Bd3 38.Rc8 Kh7 39.Rb8 Qd2 40.Kc5 Qa5 41.Kc6 Bb5 (41...Qa3?! 42.Rh8 Kh8 43.b8Q Kh7 44.Qe3 Bb5 45.Qb5 Qe3 46.Kd5 Qf4 47.Qe2–+) 42.Kd5 Ba6 (42...Bd7 43.Qc5 Qd2 (43...Qa3 44.Qa3 Be6 45.Kd4 Ra3 46.Ra8+/–; 43...Ra3 44.Qa5 Ra5 45.Kd6+/–) 44.Qd4 Qg2 45.Kc4 Qc2 46.Qc3 Qc3 47.Kd5 Rd3 48.Ke4 Qd4) 43.Bc5+= Qa2 (43...Qc7!? 44.Qe3 Qb8 45.Qe4 g6–/+) 44.Kc6= Re6 (44...Qg2 45.Kc7 Rb3 46.Bb4 Bb7 47.Rb7 Qc2 48.Kb8+/–) 45.Kc7 (better is 45.Bd6 Qb1 46.Kc7+/–) 45...Kg6?? (better is 45...Qa5 46.Bb6 Re7 47.Kd6 Qa3 48.Bc5 Re6 49.Kc7 Qa5 50.Bb6 Re7 51.Kd6 Re6 52.Kc7=) 46.Rg8+– Bb7 (46...Qa5 47.Bb6 Qb6 48.Qb6 Rb6 49.Kb6 Bb7 50.Kb7 Kf6+–) 47.Qg7 (better is 47.Rg7 Kh5 48.Qd3 Rc6 49.Kb7 Qa6 50.Qa6 Ra6 51.Ka6 f5+–) 47...Kf5 48.Qg4 (48.Kb7?! Qa6 49.Kc7 Qc6 50.Kb8 Qb5 51.Ka8 Qc6 52.Kb8 Qb5 53.Ka8 Qc6 54.Kb8=) 48...Ke4 49.f5 (49.Kb7?! Qa6 50.Kb8 Qb5 51.Ka8 Qc6 52.Kb8 Qb5 53.Ka8 Qc6 54.Kb8 Qb5=) 49...Kd5 (49...Ke5 50.Bd4 Kd5 51.fe6 Qc2 52.Kb7 Qc6 53.Kb8 Qb5 54.Kc7 Qc6 55.Kd8 Qd6 56.Ke8 Qe6 57.Qe6 fe6+–) 50.Qd4 1–0. Demoulin,J (2070) – Grodent,Gerald, TCh2–BEL, 2003.

10.d4 Nbd7 11.c5 Bc7= 12.Nc3 Ne4 13.Ne4 Be4 14.Bd3 e5 15.Be4 de4 16.Nd2 ed4 =.

10.d4 Nbd7 11.Nbd2 Qe7 (11...Ne4 12.c5 Bc7 13.Ne4 Be4 14.Bd3 e5 15.Be4 de4 16.Nd2 ed4=; 11...Bc7 12.Rc1 cb5 13.ab5 dc4 14.Nc4 a6 15.Qa4 Be4 16.Nfe5 Ne5=; 11...Rc8 12.c5 Be7 13.Rc1 b6 14.bc6 Rc6 15.Bb5 Rc7 16.cb6 ab6=; 11...Qa5 12.c5 Bb8 13.Ra3 Ne4 14.Ne4 Be4 15.Nd2 Qc7 16.f4 Bf5=; 11...Bb8 12.Qb3 Bc7 13.Ba3 Rb8 14.Rac1 Ne4 15.Ne4 Be4 16.cd5 ed5=) 12.bc6 bc6 13.Ne5 Rec8 14.Nb3 Rab8 15.Rc1 Ne4 16.cd5 Be5 =.

10.Nd4 Be4 =.

10.cd5 cd5 A) 11.Nd4 Bh7 (11...Bg6 12.f4 Qd7 13.Nc3 Rc8 14.a5 Qc7 15.Rc1 Qd7 16.Qb3 Bc7+=; 11...Be4 12.f4 Nbd7 13.Nc3 e5 14.fe5 Be5 15.Nf3 Bf3 16.Bf3 Nb6=) 12.f4 Nbd7 13.a5 Nc5 14.d3 Rc8 15.Rf2 e5 16.fe5 Be5+=; B) 11.Nc3 e5 (11...Nbd7 12.Nd4 Bh7 13.f4 Nb6 14.d3 Bc5 15.Nb1 Rc8 16.a5 Nbd7=; 11...Qd7 12.Rc1 e5 13.a5 Qd8 14.a6 ba6 15.ba6 Bg4 16.h3 Bh5=; 11...Bg6 12.a5 Nbd7 13.d4 Rc8 14.a6 Qb6 15.ab7 Qb7 16.Ra6 Qb8=) 12.Rc1 Nbd7 13.d4 e4 14.Nd2 Qa5 15.Nb3 Qb4 16.a5 Bb8=.

10.cd5 ed5 A) 11.d3 Bg4 (11...a6 12.Nc3 ab5 13.ab5 Ra1 14.Qa1 c5 15.Qa7 b6 16.Ra1 d4=; 11...Nbd7 12.Nd4 Bg6 13.a5 Qb8 14.Kh1 a6 15.b6 Bh2 16.g3 Bg3+=; 11...c5 12.a5 Qe7 13.Nc3 Nbd7 14.a6 b6 15.Rc1 Rad8 16.Re1 Ne5=; 11...Qe7 12.Nbd2 c5 13.a5 a6 14.Re1 Be6 15.e4 Bf4 16.ed5 Nd5=; 11...a5 12.Nc3 c5 13.Rc1 Nbd7 14.Re1 Qe7 15.Qd2 Be6 16.d4 c4+=) 12.Nc3 Nbd7 13.a5 Qe7 14.Rc1 Ne5 15.a6 Rab8 16.ab7 Bf3+=; B) 11.a5 Qe7 (11...Bc7 12.Qa4 a6 13.b6 Bd6 14.d3 Nbd7 15.Nc3 Qe7 16.Qh4 c5=; 11...a6 12.b6 c5 13.d3 Nc6 14.Nbd2 Qe7 15.Re1 Rac8 16.Qb3 Be6=; 11...c5 12.d3 Qe7 13.Nc3 Nbd7 14.a6 b6 15.Rc1 Rac8 16.Re1 Ne5=) 12.Nc3 a6 13.b6 c5 14.Ba3 Nc6 15.d4 c4 16.Bd6 Qd6=; C) 11.Nc3 Qe7 (11...a6 12.d3 ab5 13.ab5 Ra1 14.Qa1 c5 15.Qa4 Nbd7 16.Ra1 Ne5=; 11...c5 12.a5 Bc7 13.Qa4 Ne4 14.Rfc1 c4 15.Ne4 Be4 16.d3 cd3=; 11...Qd7 12.a5 a6 13.bc6 bc6 14.d4 Qe6 15.Ba3 Bc7 16.Qa4 Ra7=; 11...Nbd7 12.d3 c5 13.a5 Qe7 14.a6 b6 15.Re1 Qe6 16.Rc1 Ne5=; 11...Bg4 12.h3 Bf3 13.Bf3 Qe7 14.bc6 bc6 15.d4 Na6 16.Rb1 Nb4=) 12.a5 a6 13.b6 c5 14.Ba3 Nc6 15.d4 c4 16.Bd6 Qd6=.

10.cd5 Nd5 11.d3 (11.Nc3 Nc3 12.Bc3 Be4 13.bc6 Bc6 14.Rc1 e5 15.Bc4 Qd7 16.a5 Qc7=) 11...Nb4 (11...Bg4 12.Nbd2 cb5 13.ab5 Bb4 14.Qc2 Bf3 15.Nf3 Qd7 16.d4 Rc8+=) 12.e4 Bg4 13.d4 cb5 14.ab5 Qd7 15.Qb3 a5 16.Rd1 Rd8 +=.

7.a4 a5

8.cd5 cd5 9.Be2 0-0 =.

8.Be2 0-0=+ 9.0-0 dc4 10.Bc4 cb5 11.Bb5 =+.

8.Be2 0-0 9.0-0 dc4 10.Bc4 Nbd7 11.Nd4 =.

8.Be2 0-0 9.0-0 Nbd7 10.d3 e5 11.d4 e4 12.Nh4 Be6 13.c5 Bc7 14.g3 (14.f4 Ne8 15.Qe1 Ndf6=) 14...Qe7 15.b6 Bb8 16.Nd2 h6 17.Nb3 Nh7 (17...Bh3 18.Ng2=) 18.Bc3 Ndf6 19.Na5 Ng5 20.Ng2 (20.Nb3 Re8+=) 20...Qd7 (20...Nf3 21.Kh1=) 21.Nf4 Bg4 22.Bg4 Ng4 23.h4 Nf3 24.Kg2 g5 (24...Bf4!? 25.ef4 Nf6=+) 25.hg5+= hg5 26.Nh3 (26.Ne2 f5=) 26...f5 (26...Bg3 27.Kg3 Nf6 28.Qf3 ef3–+) 27.Ng5?? (better is 27.Rh1=) 27...Ng5–+ 28.Rh1 Qg7 29.Rh5? (better is 29.Qe2–+) 29...Bg3! (30.Nc4 Bf2–+) 0–1. Sternik,Ryszard (2000) – Guziec,Krzysztof (1800), corr 1. AMM Poland, 1991.

8.Be2 0-0=+ 9.0-0 Nbd7 10.d4 dc4 11.Bc4 (11.Na3 Nb6 12.Nc4 Nc4 13.Bc4 Rc8=) 11...Nb6 12.Be2 cb5 13.Bb5 Nfd5 (13...Rc8 14.Ba3=) 14.Nbd2 Nb4 15.e4 Bg4 16.h3 Bh5 17.e5 (17.Qb3 Bf4=) 17...Be7 18.Ne4 (18.Qb3 Rc8=) 18...Rc8=+ 19.Rc1 Rc1 20.Bc1 N6d5 21.Qb3 (21.Be3 Qb6=) 21...Qc7 (21...Nc7 22.Ned2=+) 22.Nfd2 (22.Bg5 Bf3 23.Qf3 Bg5 24.Ng5 Nc3=) 22...Nf4 (22...Rc8 23.Bb2=) 23.Bb2 Be2 24.Rc1 (24.Be2 Ne2 25.Kh2 Rd8=) 24...Qd8 25.Bc4 Nbd3 (25...Qd7 26.Ng3 Bc4 27.Rc4=+) 26.Bd3 (26.Rb1 Qc7=) 26...Nd3 (26...Bd3 27.Kh2=+) 27.Rc2 (27.Rb1 Nb2 28.Qb2 Bb4=) 27...Nb2 (27...Nb4 28.Rc1=) 28.Qb2 Bb4 29.Nb3? (better is 29.Nd6=) 29...Bd3–+ 30.Nec5 Bc2 31.Qc2 Qc7 32.Qe4 (better is 32.Qd3–+) 32...b6 33.Nd3 (33.Na6 Qc4 34.Nb4 Qb3–+) 33...Qc2 (34.Nbc1 Rd8–+) 0–1. Kusmierek,Jozef – Piszcz,Kazimierz, corr 2. AMM Poland, 1994.

7.a4 a6

8.Nc3 Nbd7 9.Be2 e5 10.d4 ab5 11.ab5 Ra1 12.Qa1 e4 13.Nd2 0-0 14.bc6 bc6 15.cd5 cd5 (< 15...Nd5 16.Nde4 Be4 17.Ne4 Bb4 18.Kf1+=) 16.Nb5 Bb8 17.Ba3 Re8 18.h3 Re6 19.0-0 Ne8 20.Rc1 Rg6 21.Kf1 Nb6 22.Bc5? (better is 22.Qc3=) 22...Qh4–+ 23.Bg4? (23.g3 Qh3 24.Ke1 Qh1 25.Nf1=+) 23...Bg4 (23...Rg4 24.hg4 Qh1 25.Ke2 Bg4 26.f3 Qg2 27.Kd1–+) 24.hg4 Rf6 25.f4 (25.f3 Nc4! 26.Nc4 ef3 27.gf3 dc4 28.Ke2 Qh2 29.Kd1 Rf3 30.Qc3 Rf1 31.Qe1 Qf2 32.Bb4 Bg3 33.Qf1 Qf1 34.Kc2 Qd3 35.Kb2 Qb3 36.Ka1 Qa4 37.Ba3 Nd6 38.Nc3 Qa3 39.Kb1 Be1 40.Na2 c3 41.Rc2 Nc4 42.Nc3 Bc3 43.Ra2 Qb3 44.Kc1 Qa2 45.e4 Qd2 46.Kb1 Qb2) 25...ef3 (25...Bf4 26.ef4 e3 27.Ne4 de4 28.Qa2–+) 26.gf3 Nc4! 27.Nc4 (27.Rc4 Qh1) 27...Rf3 (27...dc4 28.Qa8 Qh3 29.Ke1 Rf3 30.Qf3 Qf3 31.Kd2 Qf2 32.Kd1 Qf1 33.Kc2 Qd3 34.Kb2 Qb3 35.Ka1 Qb5 36.Rb1 Qa5 37.Kb2–+) 28.Ke2 Qf2 29.Kd3 dc4 30.Kc4 Qe3 31.Rc3 Qe6 32.Kb4 Rc3 (32...Rf2 33.g5–+) 33.Kc3 (33.Nc3 Qg4 34.Qa8 Qf4–+) 33...Qg4 (better is 33...Nf6!? 34.Qa8 Qe3 35.Kb4–+) 34.Qa8 Qc8 35.Kb2 Qd8 36.Ba7 Nc7 37.Qb8 Qb8 38.Bb8 Nb5 39.d5 Kf8 40.Kb3 Ke7 41.Kc4 Nd6 42.Kc5 Ne4 43.Kc6 Nf6 44.d6 Ke8 45.Ba7 h5 46.Bd4 Kd8 47.d7? Nd7 48.Bg7 h4 49.Bh6 h3 50.Bf4 Nf6 (51.Bd6 Ng4–+) 0–1. Waechtler,Frank – Schubert,D, BL, 1989.

8.d4 Nbd7 9.ba6 ba6 10.c5 (10.Nc3 Rb8 11.Ba3 c5 12.Rc1 Ne4 13.dc5 Ndc5+=; 10.Nbd2 0-0 11.Ba3 c5 12.cd5 ed5 13.dc5 Nc5+=) 10...Bc7 11.Be2 0-0 12.0-0 Qe7 13.Nc3 Rfb8 +=.

8.d4 Nbd7 9.Nc3 A) 9...ab5 10.ab5 (10.c5 b4 11.cd6 bc3 12.Bc3 Ne4 13.Bb4 Qb6+=) 10...Ra1 11.Ba1 0-0 12.c5 Bc7 13.b6 Bb8=; B) 9...0-0 10.c5 (10.bc6 bc6 11.Bd3 Rb8 12.Bc1 Ne4 13.Be4 de4–/+; 10.ba6 ba6 11.Bd3 Rb8 12.Bc1 Ne4 13.Be4 de4–/+) 10...Be7 11.Be2 Qc8 12.b6 Ne4 13.0-0 e5=; C) 9...Bb4 10.Qb3 (10.bc6 bc6 11.Rc1 Ne4 12.Nd2 Nd2 13.Kd2 0-0+=; 10.Nh4 Be4 11.bc6 bc6 12.Rc1 Rb8 13.Qe2 Nb6–/+) 10...Qa5 11.bc6 bc6 12.Be2 Rb8 13.0-0 0-0+=.

8.d4 Nbd7 9.c5 Bb8 (9...Be7 10.Nbd2 (10.Nc3 0-0 11.Be2 Qc8 12.b6 Ne4 13.0-0 e5=; 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bb1 13.Qb1 Qa5=) 10...0-0 11.Be2 ab5 12.ab5 Ra1 13.Qa1 Ne4=; 9...Bc7 10.b6 Bb8 11.Be2 Ne4 12.Nc3 Qf6 13.Qb3 Nc3=) 10.b6 (10.Be2 Ne4 11.Qb3 ab5 12.ab5 Ra1 13.Ba1 0-0=; 10.Nc3 0-0 11.Be2 Ne4 12.0-0 Qf6 13.Qb3 Bg4=; 10.Nbd2 0-0 11.Be2 Ne4 12.0-0 Qf6 13.Qb3 Qg6=) 10...Qe7 (10...0-0 11.Be2 Ne4 12.0-0 Qf6 13.Qb3 e5=) 11.Nbd2 (11.Be2 0-0 12.0-0 e5 13.Nc3 e4=) 11...0-0 (11...e5 12.de5 Ne5 13.Rc1 0-0=) 12.Nb3 (12.Be2 Ne4 13.0-0 Qf6=) 12...e5 13.Be2 (13.Ne5 Ne5+=) 13...h6 (13...ed4=) 14.0-0 e4 15.Nfd2 Ne8 16.Na5 Ndf6 1–0. phildo (1865) – hinschi (1750), gameknot.com, 2013.

8.d4 Nbd7 9.bc6 bc6 10.c5 (10.Nc3 Rb8 11.Ba3 c5 12.Rc1 Ne4 13.dc5 Ndc5+=; 10.Nbd2 0-0 11.Ba3 c5 12.cd5 ed5 13.dc5 Nc5+=) 10...Bc7 11.Be2 0-0 12.0-0 Qe7 13.Nc3 Rfb8 +=.

8.d4 Nbd7 9.Nbd2 A) 9...ab5 10.c5 (10.ab5 Ra1 11.Qa1 0-0 12.c5 Be7 13.Qa7 Qa8=) 10...Bc7 11.ab5 Ra1 12.Qa1 0-0 13.b6 Bb8=; B) 9...Bb4 10.bc6 (10.ba6 ba6 11.Be2 0-0 12.Ba3 a5 13.0-0 c5=; 10.cd5 cd5 11.Be2 ab5 12.Bb5 Qa5 13.0-0 0-0=) 10...bc6 11.Be2 c5 12.0-0 0-0 13.Rc1 Ne4=; C) 9...0-0 10.c5 (10.Be2 ab5 11.ab5 Ra1 12.Qa1 cb5 13.c5 Be7=; 10.Nh4 Bg4 11.Nhf3 Bb4 12.bc6 Ne4 13.Bc1 bc6+=) 10...Bc7 11.b6 Bb8 12.Be2 Ne4 13.0-0 Qf6=.

7.a4 Nbd7

8.Nc3 0-0 9.Be2 dc4 10.bc6 bc6 11.Nd4 =+.

8.Nc3 0-0 9.Be2 Qc7 10.h3 (10.Nh4 d4 (< 10...Bh2 11.cd5 cb5 12.g3+/–) 11.ed4 Ne4+=) 10...Nc5 (10...dc4 11.Bc4 Nb6 12.Be2=+) 11.d4 Ncd7 (11...Nce4 12.c5 Nc3 13.Bc3=) 12.0-0 (12.c5 Be7=) 12...h6 (12...dc4 13.Bc4 Nb6 14.Bd3 Bd3 15.Qd3=) 13.Qb3 (13.c5 Be7+=) 13...Rab8 (13...dc4 14.Qc4 Rfc8 15.a5=) 14.Rfc1 (14.c5 Be7+=) 14...dc4= 15.Bc4 c5 16.a5 b6 17.Na4 (17.ab6 Nb6 18.dc5 Bc5+=) 17...ba5 (17...Rfc8!?=) 18.dc5+/– Bc5 19.Nc5 (White fights for the Initiative) 19...Nc5 20.Qa3 Rbc8 21.Be5 Qb6 22.Bd4 (< 22.Qa5 Qa5 23.Ra5 Nb3 24.Bb3 Rc1 25.Kh2 Bd3=+) 22...Nfe4 23.Ne5 Qd6 (better is 23...Rc7!?+=) 24.Nc6 Kh7 (24...Rc6 25.bc6 e5 26.Bc5 Nc5 27.Qc5 Qc5 28.Bf7 Kf7 29.Rc5 Rc8+–) 25.f3 (25.Qa5?! a6 26.Qa3 Ra8 27.Bc5 Nc5+/–) 25...Nf6?? (25...Qg3 26.fe4 Bh3+–) 26.Bc5 Qc5 (26...Qg3 27.Bd6 e5 28.Bf8 Bh3 29.Ra2+–) 27.Qc5 (27...Rfd8 28.Qa7+–) 1–0. Kreuzer,Uwe – Bakkers,Max, corr SOK–91–76, 1991.

8.Nc3 Qc8 9.Nh4 Bg4 (9...Bg6!?=) 10.f3+= Bh5 11.g4 Bg6 12.g5 Ng8 13.cd5 cd5 14.f4 Ne7 15.Ng6 Ng6 16.Bd3 Nc5 17.Bc2 Qc7 18.Rc1 Ne7 (18...Qe7!?+=) 19.Ne2 0-0? (better is 19...Kf8+/–) 20.d4+– Ne4 (20...Rac8 21.dc5 Bc5 22.Qd2+–) 21.Be4 Qa5 22.Bc3 Bb4 23.Bd3 (23...Rac8 24.Bb4 Qb4 25.Kf2+–) 1–0. pierre – jlepok, ChessHere.com, 2006.

8.Nc3 e5 9.Be2 0-0 10.0-0 Rc8 11.Qb3 (11.bc6 bc6 (worse is 11...Rc6 12.cd5 Rc8 13.d4+=) 12.d4 e4=) 11...Be6 (11...Nc5 12.Qa2 dc4 13.Qc4–/+) 12.d4 e4 13.Ng5 Qe7 (13...dc4!? 14.Bc4 Bc4 15.Qc4 Qe7+=) 14.Ne6 fe6 15.c5 Bc7 16.bc6 bc6 17.Qb7?? (better is 17.f4=) 17...Nc5–+ 18.Qb4 Rb8 19.Qa3 Rb3 (19...Qd6!? 20.g3 Nb3 21.Rad1–+) 20.Qa2–/+ Rfb8 21.Ba3 Rc3 22.Bc5 Bd6 23.Qd2 (23.Bd6 Qd6 24.Rfc1 Qb4+=) 23...Rcb3–/+ 24.Rfc1 e5 25.Bd6 Qd6 26.de5 Qe5 27.Ra2 Rb2 28.Rb2 Rb2 29.Qd1 Qd6 30.Rc2 Rc2 31.Qc2 c5 Black prepares d4 32.h3 Qb6 33.Kf1 d4 34.ed4 cd4 35.Qc4 Kf8 36.Qc8 (36.Bd1 Ke7–+) 36...Ke7 37.Bb5 d3 38.Qc3 Qd6 39.Ke1 Kd8 (better is 39...h5!?–+) 40.Qa5–/+ Qc7 (40...Kc8 41.Ba6 Kd7 42.Bb5 Ke6 43.Bc4 Nd5 44.Kd1–/+) 41.Qc7+= Kc7 42.f3 h6 43.fe4 Ne4 44.Bd3 Nc5 45.Bb5 Kb6 46.Kd2 Ka5 47.Kc3 Na4 48.Ba4? (better is 48.Kc4–/+) 48...Ka4–+ 49.Kc4 (49.Kb2–+) 49...g5 50.g3 h5 (50...a5 51.g4–+) 51.g4 hg4 52.hg4 a6 0–1. Kuttruf,Andrei – Reischmann,Andreas (1610), Wuerttemberg–ch U18, 2003.

8.bc6 bc6 9.Nd4 Be4 =.

8.d4 dc4 9.bc6 bc6 10.Bc4 =+.

8.d4 Qe7 9.Nc3 (9.c5 Bc7=) 9...e5 (9...Bb4 10.Qb3=) 10.de5 (10.bc6 bc6 11.cd5 Nd5 12.Nd5 cd5 13.de5 Bb4 14.Ke2 0-0=+) 10...Ne5 (< 10...Be5 11.Ne5 Qe5 12.Qd2+/–) 11.Nd4 Bg6 (11...Bg4 12.f3 c5 13.fg4 cd4 14.Nd5 Nd5 15.cd5 Bb4 16.Ke2 d3 17.Kf2 Qf6 18.Kg1–/+) 12.bc6 (12.cd5 cd5 13.Be2 Nc4 14.Nd5 Nb2 15.Ne7 Nd1 16.Ng6 Ne3 17.fe3 hg6=) 12...bc6 (12...dc4!? 13.cb7 Rd8=+) 13.cd5= Rb8 14.Qd2 cd5 (14...Nd5? 15.Nc6 Nc6 A) < 16.Qd5 Nb4 (16...Rb2?! 17.Qc6 Qd7 18.Qd7 Kd7 19.Bb5 Ke7 20.Nd5 Ke6 21.Bc4=) 17.Bb5 Kf8–/+; B) 16.Nd5+–) 15.Bb5 Nfd7 (better is 15...Kf8!?=) 16.Nd5+/– Qd8 (16...Qg5!? 17.Nf4 0-0+/–) 17.f4+– Rb5? (17...Nd3 18.Kf1 Rb7 19.Bd3 Rb2 20.Qb2 Bd3 21.Kg1 0-0+–) 18.Nb5 Nd3 19.Ke2 (19.Kf1 0-0 20.Nd6 N7c5+–) 19...0-0 20.Nd6 Nb2 (20...N7c5 21.Nc8 Re8 22.Nce7 Re7 23.Ne7 Qe7+–) 21.Qb2 Nc5 (21...Nb8 22.Qa3+–) 22.Qe5 Bd3 (22...Bh5 23.Qh5 Qd6 24.Rhd1+–) 23.Kf3 f6 (23...Bc2 24.e4 Nd3 25.Qe7+–) 24.Ne7 Kh8 25.Qc5 Qe7 26.Rhd1 Bg6 27.Rac1 Rb8 (27...a6 28.f5 Bh5 29.g4+–) 28.Qc8! (28...Qf8 29.Qf8 Rf8 30.f5+–) 1–0. McGhee – SWAT_TEAM, ChessWorld.net, 2004.

8.Nd4 Bb1 9.bc6 Be4 10.cd7 Nd7 11.Rc1 =.

8.Nd4 Bg4 9.f3= c5 10.fg4 cd4 11.Bd4 dc4 12.g5 =.

8.Nd4 Bg4 9.f3= Bh5 10.bc6 bc6 11.Nc6 Qb6 12.Bf6 Nf6 13.Nd4 Be5 (13...0-0 14.Nc3=) 14.a5+= Qb4 (14...Qc5 15.Qa4 Kf8 16.Ne6 fe6 17.d4 Bd4 18.ed4 Qd4 19.Be2=) 15.Nc6+/– Qb2 16.Ra3 Bd6 17.Rb3 Qa1 18.d4 0-0 (18...Kd7!? 19.cd5 Nd5+/–) 19.c5+– Rac8 20.Bb5 (20.Ra3 Qb2 21.Na7 Ra8+–) 20...Rc6 21.Bc6 (21.cd6 Qa5 22.Nd2 Rd6=+) 21...Qa5 22.Nc3 Rc8?? (better is 22...Qc7 23.Bd5 Bh2+–) 23.cd6 Rc6 (23...h6 24.d7 Nd7 25.Bd7 Rc3+–) 24.Rb8 (24…Rc8 25.Rc8 Qd8 26.Rd8 Ne8 27.Re8) 1–0. Kern,Michael – Bell,Alexander, compuserve, 1997.

8.Be2 0-0 9.0-0 Qe7 10.d3 (10.bc6 bc6 11.Nd4 Bg6=) 10...Rfd8 (10...dc4 11.dc4 cb5 12.ab5=+) 11.Nbd2 (11.bc6 bc6 12.Nd4 Rac8=) 11...Nc5 (11...e5 12.d4=) 12.d4 (12.bc6 bc6 13.Nd4 Rdc8 14.Nf5 ef5 15.Bf6 Qf6=) 12...Nd3 13.Bc3 (13.c5 Nb2 14.cd6 A) 14...Nd1? 15.de7 Re8 16.Rfd1+– (16.Bd1?! cb5 17.Ne5 ba4+–); B) 14...Rd6?! 15.Qb3 Nc4 16.Bc4 dc4 17.Nc4=; C) 14...Qd6=) 13...dc4 (13...c5 14.Nh4 Be4 15.cd5 Nd5 16.Ne4 Qh4 17.Nd6 (17.Bd3?? Qh2) 17...Nc3 18.Qd3 Ne2 19.Qe2 Rd6 20.dc5+–) 14.Nc4 Bb4 15.Qb3 (15.Bd3 Bc3 16.Rc1 Bd3 17.Qd3 cb5 18.ab5 Bb4+=) 15...Bc3 16.Qc3 Nb4 17.Nce5 (17.Rfc1 Nfd5 18.Qb3 cb5 19.ab5 Rdc8+=) 17...cb5 (17...Nfd5 18.Qd2=) 18.ab5 Rdc8 19.Qa3 Nfd5 20.Rfc1 Qd8 (20...Rc1 21.Rc1 a5 22.ba6 ba6 23.Rc5=) 21.Rc8+= Qc8 22.Rc1 Qd8 23.Ne1 (23.g4 Be4+=) 23...a6 24.Ra1 (24.ba6 Na6 (worse 24...ba6 25.Bf3+–) 25.Qb3 Rc8 26.Rc8 Qc8+=) 24...a5 (24...Rc8 25.ba6 ba6 26.Rc1= (26.Ba6? Ra8–+)) 25.g4 (25.Bf3 f6 26.Nc4 Bg6=) 25...Bg6 (25...f6 26.gf5 fe5 27.fe6 Qg5 28.Kh1 ed4 29.Nf3=) 26.Ng6 hg6 27.Bf3 Qd7 28.Be2 b6 29.Rc1 Rc8 30.h3 (30.Nf3 Rc1 31.Qc1 Qc7=) 30...Rc7 (30...Rc1 31.Qc1 Qc7 32.Qb1=+) 31.Nd3 (31.Nf3!?=) 31...Qb5=+ 32.Nf4 (32.Rc7 Nc7 33.Nb4 Qe2=+) 32...Rc1–/+ 33.Qc1 Qc6 34.Qc6 Nc6 35.Nd5 ed5 36.Bb5 Nb4 37.Kf1 Kf8 (37...Na2!? 38.Ke1–+) 38.Ke2–/+ Ke7 (38...g5 39.Kd2–/+) 39.Kd2 (39.h4 Nc2–/+) 39...Kd6 40.Kc3 (better 40.Be8 Ke6 41.Bb5–/+) 40...Na2 (better 40...Nc6!?–/+) 41.Kb3 Nc1?? (41...Nb4 42.Kc3 Nc6 43.h4–/+) 42.Kc2?? (better 42.Kb2+–) 42...Na2= 43.f3 (43.Kb3 Nb4 44.Kc3–/+) 43...Nb4–/+ 44.Kb3 (44.Kc3 g5–/+) 44...f5 (44...Nc6!?–/+) 45.Kc3=+ Nc6 46.Kb3? (46.Kd3 Kc7=+) 46...Na7 (better 46...f4!? 47.Bc6 Kc6 48.ef4 b5–+) 47.Be8 (better 47.Bd3 f4 48.ef4–/+) 47...fg4 (better 47...f4!? 48.ef4 Ke7 49.Bg6 Nb5–+) 48.hg4=+ g5 49.Bg6 (49.Ka4!?=) 49...b5–/+ 50.Bd3 (50.Bf5 Ke7=+) 50...Kc6 (50...Kd7 51.Bf5 Kc7 52.Be6–/+) 51.e4 (51.Bg6 Kc7–/+) 51...de4 (51...Kd6!? 52.Bc2 Nc6–/+) 52.fe4=+ Nc8 (52...Kd6 53.Kc3=+) 53.e5= Ne7 (53...Nb6 54.Be4 Kd7 55.Bf5 Ke7 56.Bd3=) 54.Be4 Kb6 55.Kc3 a4 56.Kb4 Nc6 57.Bc6 Kc6 58.Kc3 (58.Ka3 Kd7=) 58...a3 (58...Kd5 59.Kb4=) 59.Kb3 b4 60.Ka2 Kd5 61.Kb3 Ke6 (61...g6 62.Ka2=+) 62.Ka2= ½–½. Dias,J Oliveira Gaspa (1650) – Jorge,R M Osorio (1925), Portugal Open Rapid, 2017. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.b5 Bd6 6.c4 c6 7.a4 Nbd7)

7.Nc3 0-0

8.a4 e5 9.Be2 Nbd7 10.d4 e4 11.Nd2 a5 (11...cb5 12.ab5 dc4 13.Nc4=) 12.c5= Bb8 13.b6 Be6 14.Nb3 Ne8 15.Qd2 f5 16.g3 g5 Black plans f4 17.Nd1 f4 18.Na5 Ra5? (better is 18...f3 19.Nb7 Qc8+/–) 19.Qa5+– Qf6? (19...f3 20.Bf1 Rf7 21.Qa8+–) 20.Kd2 (20.gf4 gf4 21.Qa8 fe3 22.fe3 Bg4 23.Bg4 Qh4 24.Kd2 Qg4+–) 20...Qh6? (20...f3 21.Bf1 Ng7+–) 21.Qa8 Qh3 (21...f3 22.Bf1+–) 22.Qb7 fe3 (22...Qg2 23.Qc6 Ng7 24.Rf1+–) 23.fe3 Qg2 24.Qc6 (24.Nc3 Bg4 25.Qc6 Nef6+–) 24...Ng7 (24...Nd6 25.cd6 Qh1+–) 25.Nc3 Rf2 (25...Nf6 26.a5 Ng4 27.Rag1+–) 26.Raf1 Nf6 (26...Rf8+–) 27.Rf2 Qf2 28.Rf1 (28.Rf1 Qh2 29.Rf6+–) 1–0. Steffens,Olaf (2270) – Egresi,Mate (2225), 20th Pannonia–Ramada Kupa, Fide Open, 2015.

8.Qb3 a6 9.bc6 Nc6 10.cd5+= (10.Qb7?? Na5 11.Qa8 Qa8–+).

8.Qb3 Nbd7 9.d4 dc4 (9...Re8 10.c5 Bc7 11.Be2=) 10.Bc4 Nb6 (10...Rc8 11.Nh4+=) 11.Be2= Qe7 (11...Rc8 12.Rc1=) 12.0-0 Rfc8 13.Rfc1 Nfd5 (13...Nbd5 14.Ne5=) 14.a4 (14.Nd5 cd5 15.a4 Bg4=) 14...Nc3 15.Bc3 (15.Rc3 cb5 16.Rc8 Rc8 17.ab5 Bb8=) 15...cb5 16.Bb5 (16.ab5 Be4=) 16...h6 (16...Be4 17.Nd2 Bd5 18.Qb2=) 17.Bb2 (17.Ba5 Nd5=) 17...Be4 18.Qd1 Rc1 (18...a6 19.Bd3 Rc1 20.Bc1 Bd3 21.Qd3=) 19.Rc1 (worse is 19.Qc1 Bf3 20.gf3 Qg5 21.Kh1 a6–/+) ½–½. Grossmann,Philipp (1930) – Woerle,Heinrich (1940), Regionalliga NO, 2006.

8.bc6 Nc6 9.cd5 Nd5 (9...ed5 10.Nb5 Nb4 11.Nfd4 Nd3 12.Bd3 Bd3=) 10.Nd5 ed5 11.Qb3 Qd7 12.Nd4 Be6 +=.

8.Nd4 Bg6 9.cd5 ed5 (9...cd5 10.f4 Ne4 11.Ne4 de4 12.Qg4 Qd7=) 10.bc6 (10.Be2 a6 11.bc6 Nc6 12.Nc6 bc6+=) 10...bc6 (10...Nc6 11.Ncb5 Be7 12.Rc1 Qd7+=) 11.Be2 a6 (11...c5 12.Ndb5 Be7+=) 12.0-0 (12.Rc1 c5+=) 12...c5 13.Nf3 Nc6 14.d4 Qd7?? (better is 14...c4+=) 15.dc5+/– Bc5 16.Na4 Ba7 17.Rc1 Rac8? (better is 17...Ne4!?+/–) 18.Bf6 gf6 19.Ba6 Rc7 (19...Rb8 20.Nc3 Ne7 21.Qd2+–) 20.Bb5 (20.Nc3 Nb4 21.Nd5 Qd5 22.Rc7 Qd1 23.Rd1 Bb8+–) 20...Qd6 21.Qd2 (21.Nc3 Nb4+–) 21...Rfc8 (21...Ne5 22.Nd4+–) 22.Rfd1 (22.Ba6 Rd8 23.Nc3 Qe6+–) 22...d4 (22...Be4 23.Be2 Ne5 24.Rc7 Qc7 25.Nd4+/–) 23.Bc6+– Rc6 24.Nd4 (24.ed4 Bc2 25.d5 Bd1 26.Rc6 Rc6 27.dc6 Qd2 28.Nd2 Ba4+–) 24...Bd4 25.ed4 Rc1 26.Rc1 Rc1 27.Qc1 Qd4 28.Nc3 Bf5 29.h3 Be6 30.Qe3 Qb4 31.Qf3 (31.Ne4 Qb1 32.Kh2 Ba2 33.Qg3 Kf8 34.Qd6 Kg7 35.Qf6 Kg8 36.Qg5 Kf8 37.Qh6 Ke8 38.Qc6 Kf8 39.Qa8 Kg7+–) 31...f5 (31...Qa3 32.Qf6 Ba2 33.Qg5 Kh8 34.Qe5 Kg8 35.Ne4+–) 32.a4 Kg7 33.Qe3 h6 34.Qe5 Kf8 (34...f6 35.Qe6 Qc3 36.Qe7 Kg6 37.Qe8 Kg7 38.Qd7 Kg6 39.g3+–) 35.a5 Qc4 36.Nb5 Qd5 (36...Qa2 37.Nc7 Bc4 38.Qc5 Kg7 39.Ne8 Kg8 40.Qf5+–) 37.Qd5 Bd5 38.a6 Ke7 39.a7 Kd7 40.f4 Kc8 (40...h5 41.Kf2+–) 41.Nd4 (41.Nd6 Kc7 42.Nf7 h5+–) 41...Be6?? (41...Kb7 42.Nf5 h5+–) 42.a8Q (42.a8Q Kd7 43.Qc6 Ke7 44.Qc5 Ke8 45.Nc6+–) 1–0. McGhee – babyl, ChessWorld.net, 2008.

8.cd5 ed5 A) 9.Be2 a6 (9...Re8) 10.ba6 Na6 11.0-0 Nc5 12.d3 Re8+=; B) 9.Rc1 a6 10.bc6 Nc6 11.Na4 Be4 12.Nd4 Ne5=.

8.cd5 Nd5 9.Nd4 Bg6 (9...Nc3 10.Bc3 Bg6 11.bc6 Nc6 12.Nc6 bc6=) 10.bc6 bc6 11.Rc1 Nc3 12.Rc3 e5 +=.

8.Be2 dc4 9.Bc4 a6 10.a4 =+.

8.Be2 dc4 9.Bc4 cb5 10.Nb5 Be7 (10...Bb4 11.Nbd4 Be4 12.0-0=) 11.Nbd4 Bg6 (11...Be4 12.0-0=+) 12.Qb3= Nbd7 13.Ba3 (13.0-0 e5 14.Ne2 Nc5=+) 13...e5 (13...Ba3 14.Qa3 e5 15.Nb5=+) 14.Nb5 a6 (14...Ba3 15.Na3 Nc5 16.Qb4=) 15.Be7 Qe7 16.Nc3 (16.Nc7 Nc5 17.Qb6 Rac8–/+) 16...Nc5 17.Qd1 (17.Qb6 Nd3 18.Bd3 Bd3–/+) 17...Nd3 (17...b5 18.Be2–/+) 18.Bd3 Bd3 19.Qb3 Rfd8 20.Ne2 (20.Rc1 Rac8–/+) 20...b5 (20...e4 21.Nfd4 Rac8 22.Nf4–/+) 21.Qb2 (21.Rc1 Be2 22.Ke2 e4–/+) 21...e4–+ 22.Nfd4 Qe5 23.Rc1 Rac8 24.Qa3 Bc4 25.Qa6= Ra8 26.Qb7 Rdb8 27.f4 Qh5 28.Qc7 Nd5 29.Qe5 Qe5 30.fe5 Ra2 31.Ng3 Nb4 32.Rb1 Nd3 33.Kd1 Nf2 34.Ke1 Nh1 35.Nh1 Bd3 36.Rc1 Rba8 37.Nf2 Ra1 38.Nd3 ed3 39.Kd1 Rc1 40.Kc1 Ra1 41.Kb2 Rg1 42.Nb5 Rg2 43.Kc3 Rh2 44.Kd3 Rh5 45.Ke4 Rh4 46.Kf5 g6 47.Kg5 Rh5–+ 48.Kf4 Rf5 49.Ke4 h5 50.d4 h4 51.Nd6 Rf1 0–1. Demoulin,Joachim (2080) – Gervais,Victor (2225), Glorney Cup U20, 1995.

8.Be2 dc4 9.bc6 Nc6–/+ 10.Bc4 Ne5 (10...a6 11.d4=+) 11.Ne5 Be5 12.d4 Bd6 13.0-0? (13.Rc1!?=+) 13...Qc7 (13...Bh2!? 14.Kh1 Ng4–+) 14.Be2–/+ Bh2 15.Kh1 Bd6 16.Nb5 Qe7 17.Nd6 Qd6 18.a4 (18.Qb3 Rfc8–/+) 18...Rfc8 19.Ba3 Qd7 (19...Qd5 20.Rc1–/+) 20.Bf3 (20.Bb5 Qd5–/+) 20...Ne4 (20...Bc2 21.Qe1–+) 21.Bb4 (21.Qb3 Rc7 22.Rac1 Rc1 23.Bc1 b6–/+) 21...Rc2 (21...Rc4 22.Qb3 Qd5 23.Rab1–/+) 22.Be4 Be4 23.f3 Bg6 24.Kg1 (24.e4 Rc6–/+) 24...Rac8–+ 25.Rf2 Qc6 26.Rc2 Qc2 27.Qc2=+ Rc2 28.a5 Rb2 29.Bc5= a6 30.Ra3 h6 31.Rc3 Rb5 32.Bb6 Rb1 33.Kf2 Rb2= 34.Kg3 f6 35.Rc7 Bd3= 36.Re7 Bc4 37.Rb7 Bf1=+ 38.f4 Bg2 39.Rb8 Kf7–/+ 40.Rc8 (40.Bc7 Rb8 41.Bb8 Bd5–/+) ½–½. algernon (2360) – rr (2295), net–chess.com, 2007.

8.Be2 Nbd7 9.0-0 Nc5 (9...dc4 10.Bc4 Rc8 11.bc6 Rc6 12.d3+=) 10.d4= Nce4 11.Ne4 (11.c5 Bc7=) 11...Be4 (11...Ne4 12.Rc1=) 12.c5 Bc7 13.a4 (13.bc6 bc6 14.Ne5 Be5 15.de5 Nd7=) 13...Ng4 14.g3 f5 (better is 14...Nh6=) 15.Nd2 (better is 15.Qd2!?=) 15...Nh2–/+ 16.Kh2?? (better is 16.f3 Bf3! 17.Nf3 Nf1 18.Qf1 Bg3 19.Qh3–/+) 16...Qh4 0–1. Jeschke,Holger (1920) – Bohner,Joerg (1815), Schleswig Holstein–ch, 2001.

8.Be2 h6

9.d4 dc4 10.0-0 Nbd7 (10...a6 11.a4=+) 11.bc6 (11.Bc4 cb5 12.Nb5 Be7=) 11...bc6 (11...Qb6 12.cd7 Qb2 13.Qd2 Qd2 14.Nd2=+) 12.Bc4 e5 (12...Rb8 13.Qc1=) 13.Ne2 (13.a4 Bg4=) 13...e4=+ 14.Ne5 Ng4 (14...Qc7 15.Nd7 Qd7 16.Qc2=) 15.Ng3 (15.Ng4 Bg4 16.Qc2 Rb8=) 15...Nge5 (15...Nde5 16.Nf5 Nf2 17.Rf2 Nc4 18.Qg4+=) 16.de5 Be5 17.Nf5 Bb2 18.Qg4 (18.Rb1 Ne5 19.Qc2 Nc4 20.Qc4 Qf6=) 18...h5 (18...Qg5 19.Qg5 hg5 20.Ne7 Kh8 21.Rab1=) 19.Qg6 Qf6 20.Nh6 Kh8 21.Nf7 Rf7 22.Bf7 Ba1 (22...Qg6 23.Bg6 Ba1 24.Ra1+/–) 23.Qh5+/– Qh6 24.Ra1 Rb8? (24...Qh5 25.Bh5 Ne5 26.f4 ef3 27.Bf3+/–) 25.h3 (better is 25.Qf5!? Nf6 26.Rc1+–) 25...Qh5+/– 26.Bh5 Ne5 27.Rc1 (27.f4 ef3 28.Bf3 Rb2+/–) 27...g6 28.Bg4 Rb2 29.Be6 Kg7 30.Rc5 Kf6 31.Bb3 Rd2 (31...Re2 32.Ra5+–) 32.Bc2+– Nd3 33.Rc6 Ke5 (33...Kg5 34.Bb3+–) 34.Bb3 Rf2 35.Rg6 (The passed pawn on h3 will quickly become a dangerous weapon) (35.Re6 Kf5 36.Bd5 Rb2+–) 35...Re2 36.Rg3 (36.Re6 Kf5 37.Ra6 Re3 38.Ra7 Re2+–) 36...Re1 (36...Nc1 37.Kf1 Rb2 38.Bc4+–) 37.Kh2+– Nf2 (37...Kd6 38.Rg6 Kc5 39.Ra6+–) 38.Rg5 Kf6 (38...Kd6 39.Rd5 Kc7 40.Rf5+–) 39.Rg8 Nd3 (39...Ke7 40.h4+–) 40.h4 Re3 (40...Rc1+–) 41.h5 (41...Re1 42.h6+–) 1–0. Steffens,Olaf (2315) – Voigt,Martin (2265), Oberliga Nord N, 1998.

9.d4 dc4 10.Bc4 cb5 11.Bb5 a6 (11...Nc6 12.Rc1=) 12.Be2 (12.Bd3 Bd3 13.Qd3 Nc6=) 12...Qb6 (12...Nc6 13.a4+=) 13.Qb3= Qb3 14.ab3 Nc6 15.0-0 Bc2 (15...Rac8 16.Nd2=) 16.Bd1 (16.Nd2 Rac8=) 16...Bd3 17.Be2 Bh7 (17...Nb4 18.Ne5 Be2 19.Ne2=) 18.Nd2 Bb4 19.Rfc1 Rfd8 20.Bf3 (20.Nc4 Rac8=) 20...Rac8 (20...e5!? 21.Bc6 ed4 22.ed4 bc6=) 21.Ra4 a5 (21...Be7+=) 22.Raa1 (22.Nc4 Bc3 23.Rc3 Ne4 24.Be4 Be4+=) 22...Bd3 (22...e5!? 23.d5 Nd5 24.Nd5 Bd2 25.Rc6 bc6 26.Ne7 Kh8 27.Nc8 Rc8 28.Be5 Bb4=) 23.Nc4+= Bc4 24.bc4 Ne8 (24...Kf8 25.c5+=) 25.Nb5 (25.c5 Ra8+/–) 25...Ra8 (25...Kf8 26.c5+=) 26.d5 (better is 26.Ra4+=) 26...Na7? (better is 26...ed5!? 27.cd5 Ne7+=) 27.Na7+– Ra7 28.de6 (28.Bd4 Raa8 29.de6 fe6 30.Bb7 Rab8+–) 28...b6+/– 29.ef7 Kf7 30.Bd5 (30.Bd4 Bc5 31.Bc5 bc5+/–) 30...Kf8 (30...Ke7 31.e4+/–) 31.Be5 (31.Bd4 Bc5 32.Bc5 bc5+/–) 31...Nc7 (31...a4 32.Rcb1 Bc5 33.Kf1+/–) 32.Rd1 (32.Bc6 Ne6+/–) 32...Bc5 (32...Nd5 33.cd5 a4 34.e4+/–) 33.Bc7 (33.Bc6 Rd1 34.Rd1 Na6+/–) 33...Rc7 34.e4 (34.Kf1 Rcd7+/–) 34...Ke7 (34...Ra7 35.Ra4+/–) 35.Rd3 (35.Kf1 g5+/–) 35...Rf8 36.Ra2 a4 37.Rg3 (37.Ra4?? Rf2 38.Rd1 Ra2 39.Kf1 Ra4–+) 37...Bd4 (37...Kd8 38.Kf1+/–) 38.Rg6 (38.e5 Ke8+/–) 38...Ra7 (38...b5 39.e5 Kd8 40.Kf1+=) 39.Re6 (39.Rd2!? Bc3 40.Rd3+–) 39...Kd7+= 40.e5 (40.Kf1 a3 41.Rg6 Kd8+=) 40...a3 41.Rd6 Kc7 42.Rc6 Kb8 43.e6?? (better is 43.Bf3=) 43...Rf2!–+ 44.Rf2 a2 45.g3 a1Q 46.Kg2 Bf2 47.Kf2 (47.Rd6 Qf6 48.e7 Qe7–+ (48...Qd6?! 49.e8Q Kc7 50.Qf7 Qd7 51.Qf4 Kc8 52.Qf8 Qd8 53.Be6 Kc7 54.Qg7 Kb8 55.Qe5 Rc7 56.Kf2+=)) 47...Qd4 (47...Ra2 48.Ke3 Qe5 49.Be4 Ra3 50.Kd2 Qc3 51.Kd1 Ra1 52.Bb1 Rb1 53.Ke2 Rb2 54.Kd1 Qd2) 48.Kg2–+ h5 49.Rd6 Ra2 50.Kf3 Rf2 0–1. Wesener,Lorenz – Schreiber,Nico (1630), SMSN op Germany, 2007.

9.d4 dc4 10.Bc4 cb5 11.Bb5 Qb6 12.Qb3 (12.Ne5 Qc7+=) 12...Nc6 13.Ba3 Na5 14.Qa4 Ba3 (14...Rfd8 15.Rc1=) 15.Qa3+= Rfc8 (15...Rac8 16.Be2+=) 16.Be2 Nc4 17.Bc4 Rc4 18.0-0 (18.Ne5 Rc7 19.0-0 Rac8=) 18...Rac8+= 19.Rfc1 a6 (19...Nd5 20.Nd5 ed5 21.Rc4 dc4 22.Qc3+=) 20.Ne5 R4c7 21.h3 (21.h4 Kh7+=) 21...Ne4 (21...Nd5 22.Nd5 ed5 23.Rc7 Qc7 24.Qb3+=) 22.Ne4= Be4 23.Nd7 Rc1 24.Rc1 Rc1 25.Qc1 Qc6 26.Qc6 Bc6 27.Nc5 (27.Nb6 Kf8=) 27...Kf8 28.f3 Ke7 29.Kf2 Kd6 30.e4 a5 31.Ke3 b6 32.Nd3 (32.Nb3 Ba4 33.Nd2 b5=) 32...Bb5 33.g3 ½–½. Grossmann,Philipp (1900) – Novak,Michal (2155), Regionalliga NO, 2005.

9.d4 dc4 10.Bc4 cb5 11.Bb5 Nc6 =.

9.cd5 Nd5 10.Nd5 cd5 =.

7.Nd4 Bg6

8.bc6 bc6 9.cd5 ed5 10.Be2 =+.

8.bc6 bc6 9.cd5 Nd5 10.Qb3 =+.

8.bc6 bc6 9.cd5 Nd5 10.Nc3 =.

7.cd5 cd5

8.a4 0-0 9.Nc3 Nbd7 10.Be2 Nc5 11.d4 Nce4 12.Ne4 Ne4 13.0-0 Rc8 14.Qb3 (14.a5 Qf6=+) 14...Bg4 15.Rfc1 Bf3 16.Rc8?? (16.Bf3 Bh2 17.Kh2 Qh4 18.Kg1 Qf2 19.Kh1-/+) 16...Qc8 (better 16...Bh2 17.Kf1 Bg2 18.Ke1 Qc8-+) 17.Bf3 (17.gf3 Nd2 18.Qc3 Nc4=+) 17...Nd2 18.Qd3 Nf3 19.gf3 Qd7 20.Rc1 Rc8 21.Rc3 Rc3 22.Qc3 Qc7 23.f4 Qc3 24.Bc3 a6 25.ba6 ba6 26.f3 f5 27.Kf2 Kf8 28.Ke2 Ke7 29.Kd3 Kd7 30.Ba5 g6 31.Bd2 Kc6 32.e4 Bc7 33.h3 Bb6 (33...h6 34.Be3=) 34.Bb4 h5 35.Bd2 ½-½. ZeruHmyz (2255) - danielcuva (2095), Rated Blitz game, lichess.org, 2014. (=1.Nf3 A00: Irregular Openings 1...d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 c6 5.c4 e6 6.b5)

8.Nc3 0-0 =+.

8.Be2 0-0 =.

8.Be2 Nbd7 =.

7.Be2 0-0

8.0-0 a6 A) 9.bc6 Nc6 10.cd5 ed5 11.Nc3 Rc8 12.Rc1 b5 13.d4 h6; B) 9.a4 ab5 (9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Bb5 Nc6; 9...Nbd7 10.cd5 Nd5 11.bc6 bc6 12.Na3 Rb8 13.Nc4 Qc7) 10.ab5 Ra1 11.Ba1 cb5 12.cb5 Nbd7 13.Nd4 Bg6; C) 9.cd5 ed5 (9...Nd5 10.bc6 Nc6 11.Nc3 Rc8 12.Nd5 ed5 13.Rc1 Qb6) 10.a4 ab5 11.ab5 Ra1 12.Ba1 Re8 13.Nc3 c5.

8.0-0 cb5 A) 9.cb5 Nbd7 (9...Re8 10.Nc3 Nbd7 11.Nd4 Rc8 12.Rc1 Bg6 13.f4 e5; 9...Qe7 10.Nd4 Nbd7 11.Nc3 Rfc8 12.Rc1 Nc5 13.Nf5 ef5; 9...h6 10.Nc3 Nbd7 11.Nd4 Bg6 12.f4 Rc8 13.f5 ef5; 9...Bg6 10.Nc3 Nbd7 11.Nh4 Rc8 12.f4 Nc5 13.d3 Be7) 10.Nc3 Nc5 11.Nd4 Nd3 12.Qc2 Nb2 13.Nf5 ef5; B) 9.cd5 ed5 (9...Nd5 10.Bb5 Qa5 11.Qe2 a6 12.Bd3 Nc6 13.Bf5 ef5) 10.Nd4= Be5 11.Bb5 a6 12.Be2 Bd4 13.Bd4 Nc6.

8.0-0 dc4 9.Na3 a6 (9...Bc5 10.Nc4 cb5 11.Nce5 b4 12.d4 Bd6 13.a3 Nbd7; 9...Be7 10.Nc4 cb5 11.Nce5 b4 12.a3 Nbd7 13.ab4 Bb4) 10.b6 Bc5 11.Nc4 Nbd7 12.d4 Be7 13.Bc3 Ne4.

8.0-0 dc4 9.Bc4 cb5 (9...a6 10.a4 Qc7 11.Ba3 ab5 12.ab5 c5 13.Nc3 Nbd7) 10.Bb5 a6 (10...Nc6 11.a4= (11.Na3 Nb4 12.Nc4 a6 13.Nd6 Qd6) 11...Nb4 12.Nd4 Bd3 13.Bd3 Nd3) 11.Ba4 (11.Be2 h6= (11...Nc6 12.Nc3 h6 13.Rc1 Rc8) 12.Nd4 Bg6 13.f4 Nc6) 11...Nbd7 (11...Bd3 12.Re1 Nbd7 13.Bc2 Nc5) 12.Nc3 (12.Bc2 Rc8 13.Nc3 Nc5) 12...b5 (12...Bd3 13.Re1 Nc5) 13.Bb3 (13.Bc2 Bc2) 13...Bg4 (13...Nc5 14.Bc2+=) 14.d4 b4 15.Nb1 Ne4 16.Bc2 Ng5 (16...f5 17.h3 Bh5 18.a3+=) 17.Nbd2 e5 (17...Qa5 18.h4 Nf3 19.Nf3=) 18.Be4 Rc8 19.Qb3 (19.de5 Not 19...Be5 20.Bd4 Bd4 21.ed4 Nf6–/+) 19...ed4 20.Bd4 (20.Nd4?? Nc5 21.Bh7 Nh7–+) 20...Nc5 21.Bc5 Bc5 (21...Rc5 22.Rad1+=) 22.Ng5 Qg5 (22...Qd2? is tempting, but 23.Bh7 Kh8 24.Bd3+–) 23.Nf3 Qf6 24.Qc4 Bd7 25.Qd3? (better is 25.Bd3= is a viable option) 25...Bb5–+ 26.Bh7 Kh8 27.Qf5 Bf1 28.Qf6?? (better is 28.Rf1 Qh6 29.Ng5–/+) 28...gf6–+ 29.Bf5 Be2 30.Bc8 Rc8 31.Nd2 (31.Rc1 a fruitless try to alter the course of the game 31...a5–+) 31...Rd8 32.Ne4 (32.Nb3 cannot change what is in store for ? 32...Bb6 33.Re1 a5–+) 32...Be7 33.f3 (33.h4 hardly improves anything 33...Bc4 34.g4 Be6–+) 33...Rd1 (better is 33...f5 might be the shorter path 34.Ng3 Bc4 35.f4–+) 34.Rd1 Bd1 35.Nd2 a5 36.Kf2 (36.Nc4 otherwise it's curtains at once 36...a4 37.Nb2–+) 36...a4 37.Ke1 Bc2 38.Nc4 b3 39.ab3 (39.a3 no good, but what else? 39...Bd3 40.Nb2 Ba3 41.Na4–+) 39...Bb4 (better is 39...Bb3 and Black has triumphed 40.Nd2 Bb4–+) 40.Ke2 0–1. Nebe,Lutz (1620) – Leiskau,Ralf (2040), Koblenz–ch, 1996.

8.0-0 Nbd7 9.d4 dc4 10.bc6 bc6 11.Nbd2 Nb6 12.Nc4 Nc4 13.Bc4 Rb8 14.Bc3 (14.Qe2 Qc7=) 14...Ne4 (14...Nd5 15.Qe1=+) 15.Rc1 Ba3 16.Rc2 Ng5 (better is 16...Nc3 17.Rc3 Rb1=+) 17.Bd3? (better is 17.Ng5 Qg5 18.Rd2=) 17...Nf3–+ 18.gf3 Bh3 19.Kh1 Bf1 20.Qf1 Qb6 (20...Qh4 21.Be4–+) 21.Qh3 g6 (better is 21...f5 22.e4 Kh8–/+) 22.d5 (better is 22.Kg2!?–/+) 22...cd5–+ 23.Bf6 Rfc8 24.Re2 Qc7 25.Re1 Bb2 26.Bg5 Bg7 27.Rg1 Rb2 28.Bh4 Qc3 29.Bf1 Ra2 30.Rg4 Bf6 31.Bg3 a5 32.f4 Qc2 33.Qh6 Qe4 34.Kg1 (If White now only could play Qh3...) 34...Ra1 35.Qh3 h5! (36.Rg6 fg6–+) 0–1. Raue,T – Zachej,A, Germany, 2002.

8.0-0 Nbd7 9.Nd4 Bg6=+ 10.bc6 bc6 11.cd5 (11.f4 c5 12.Nb5 Be7=) 11...cd5 (11...Nd5 12.f4=+ (12.Nc6? Qb6–+)) 12.Ba3 (12.f4 Nc5=+) 12...Ba3 13.Na3 Qa5 (13...Qe7 14.Nab5 Rfc8 15.f4=+) 14.Nab5= Rfc8 (14...Ne5 15.a4=) 15.Nb3 (15.f4 Ne4 16.d3 Nc3 17.Nc3 Rc3=) 15...Qb6 16.Nc3 (16.Rc1 a6 17.Nc3 Qb4=) 16...Ne5 (16...e5 17.f4 d4 18.Na4=+) 17.Na4= Qd6 18.d4 Ned7 19.Nac5 (19.Rc1 Rab8=) 19...Ne4 (19...Nc5 20.dc5 Qe7 21.Rc1=) 20.Ne4 Be4 21.Bd3 (21.Rc1 Qa3 22.Qd2 Rab8=) 21...Bd3 22.Qd3 Rc7 (22...a5 23.Rfc1=) 23.Rfc1 Rac8 24.Rc7 Qc7 25.Qd2 Qb6 26.Rc1 Rc4 27.h3 Qc7 28.Rc4+= Qc4 29.Qa5+/– h6 30.Qa7 Nf6 31.Qa5 Ne4 32.Qe1 Qc2= 33.Nc5 Qa2 34.Ne4 de4 35.Qc1 Kh7 36.Qc7 f5 37.Qe5 Qb3 38.Kh2+= Qa2 39.Qd6 Kg6 40.Qf4 Qd5 41.g4 Kf6= 42.h4 g5 43.Qg3 e5 44.hg5 hg5 45.Qe5 Qe5 46.de5 Ke5 47.gf5 Kf5 48.Kg3 Kg6 49.Kg4 Kf6 ½–½. Chirpii,Alexandru (1965) – Mikhaylov,Dimitry, Kishinev MDA Open Binefacere, 2007.

8.0-0 Nbd7 9.cd5 cd5 10.Nd4 Bg6 =.

8.0-0 h6 9.a4 a5 10.d4 (better 10.Nc3=) 10...cb5 (better 10...Nbd7!?=) 11.c5+– Be7 12.ab5 Nbd7 13.Nc3 Ne4 14.Na4 (better 14.Qa4+=) 14...b6? (better 14...Qc7!?+=) 15.c6+– Ndf6 16.Ba3 (16.Ne5 Qc7+–) 16...Ba3+– 17.Ra3 Bg4 (17...Ng4 18.Ra2+–) 18.Ne5+– Be2 (18...Bf5 19.f3 Nd6 20.Ra1+–) 19.Qe2 Qc7 (19...Nd6 20.f3+–) 20.f3 Nd6 21.Rb3 (21.Qd3 Rfe8+–) 21...Rfd8 (21...h5 22.Nc3+–) 22.g4 (22.Nc3 Nf5+–) 22...Nfe8 (22...Nh7 23.h4+–) 23.h4 (23.e4 Nf6 24.Re3 Nde8+–) 23...f6 (23...Nc4 24.Kg2 Ned6 25.h5+=) 24.Ng6 Nc4 25.Qg2 White prepares the advance g5 (25.Kg2 Ned6+–) 25...Ned6+= 26.g5 (26.h5 Nf7+=) 26...Qf7 (better 26...fg5!? 27.hg5 Nf5 28.gh6 Nce3 29.Re3 Ne3+=) 27.gh6+= Kh7 (27...Nf5 28.Re1 Kh7 29.h5 gh6 30.Qh2+=) 28.h5+– gh6 (28...Nf5 29.Kf2 Kh6 30.Rh1+–) 29.e4 Rg8 30.Re1 (30.Kh1 e5 31.Rd1 Rae8+–) 30...Rae8+= 31.Nc3 (31.Kh2 e5 32.ed5 ed4 33.Re8 Qe8=) 31...Nc8 (31...e5!? 32.Nd5 ed4+=) 32.ed5+– ed5 33.Re8 Re8 34.Ne2 (34.Qg3 N8d6+=) 34...f5 (34...N8d6 35.Nef4=) 35.Nef4 (35.Rd3 Nb2 36.Rc3 Nc4+=) 35...a4 (35...N8d6 36.Rb1+=) 36.Rc3 (36.Rd3!?+=) 36...N8d6= 37.Ne5 Ne5 38.de5 Nb5 (38...Re5 39.c7 Re8 40.Qg6 Qg6 41.hg6 (worse 41.Ng6 d4 42.Ra3 Nb5 43.Ra4 d3–/+) 41...Kg7 42.Nd5+–) 39.e6 (better 39.Rc1!? Rg8 40.Ng6=) 39...Qg7 (39...Qf6 40.Re3 d4 41.Re1=+) 40.Qg6 Qg6 41.hg6 (41.Ng6 Nc3 42.e7 a3–+) 41...Kg7 42.Rc2 Nc7 43.Rg2 (43.Kf2 Kf6–/+ (43...Ne6?? 44.Ne6 Re6 45.c7+–)) 43...Kf6 44.Nh5 (44.Kf2!? a3 45.g7–/+) 44...Ke7–+ 45.Ng7 (45.Nf4 Kd6–/+) 45...Rg8 46.Nf5 Kf6 47.Nd6 (47.Nh4–+) 47…Ke6 (47...Ke6 48.Nf7 Kf6 49.Nh6 Rg6 50.Ng4 Ke7 51.Re2 Kd6–+) 0–1. Healey,Michael W (2160) – Houska,Jovanka (2405), London Classic Open, 2017.

8.a4 a6 9.0-0 ab5 10.ab5 Nbd7 (10...Ra1 11.Ba1 dc4 12.Bc4 cb5 13.Bb5=+) 11.bc6 (11.Ra8 Qa8 12.cd5 cd5=) 11...bc6=+ 12.Nd4 (12.d4 Qb6 13.Bc3 Ra1 14.Ba1 Rb8=) 12...Bb1 (12...Bh2!? 13.Kh2 Qb8 14.Kg1 Qb2–/+) 13.Qb1= Qb6 14.Qc1 (14.Qc2 Rfb8=) 14...Be5 (14...Rfb8 15.f4=) 15.Rb1 (15.f4 Bd4 16.Bd4 c5=) 15...Rfb8 16.f4 Bd6 17.Bc3 Qc7 18.Rb8 Rb8 19.Nf3 (19.Qc2 Nb6=) 19...Ne4 20.Ba1 Ra8 (20...Qb6 21.Qc2=) 21.Qc2 (21.Qb2 f6=) 21...Ra5 (21...Bc5 22.Be5 Qa7 23.Bd3 Ne5 24.fe5= (24.Ne5? Nd2 25.Bh7 Kf8–+)) 22.Rc1 (22.d3 Nef6=) 22...c5 (22...Qa7 23.Bd4 Bc5 24.Qd1=) 23.cd5 (23.Rb1 Qa7 24.Bb2 Qc7+=) 23...ed5 24.d3 (24.Bb2 c4=) 24...Nef6 25.Bc3 (25.Qd2 Qa7 26.Bc3 Ra3=) 25...Ra3 (25...Ra8 26.g3=) 26.Qb2 (26.g3 Qa7=) ½–½. Weiss,P – Waesch,T, Leiden, 2001.

8.a4 cb5 9.ab5 dc4 10.Na3 =.

8.Nc3 dc4 9.Bc4 (9.Nd4 Bd3 10.0-0 c5 11.Nf3 Nbd7 12.Bd3 cd3 13.Qa4 a6) 9...Nbd7 (9...a6 10.a4 Qc7 11.d3 ab5 12.ab5 Nbd7 13.bc6 bc6) 10.0-0 Rc8 11.bc6 bc6 12.Nd4 Ne5 13.Be2 Rb8.

8.Nc3 Nbd7 A) 9.cd5 cd5 (9...ed5 10.0-0 c5 11.Nh4 Be6 12.Qc2 g6 13.Nf3 Qe7) 10.0-0 Rc8 11.Rc1 h6 12.Nd4 Bg6 13.f4 Bh7; B) 9.Nd4 dc4 (9...Bg6 10.bc6 bc6 11.f4 dc4 12.0-0 Qb6 13.Na4 Qa6) 10.Nf5 ef5 11.bc6 bc6 12.Bc4 Ng4 13.g3 Rb8; C) 9.bc6 bc6 10.Nd4 Bg6 11.cd5 ed5 12.f4 Qb8 13.f5 Qb2; D) 9.Rc1 Nc5 (9...dc4 10.Bc4 a6 11.bc6 bc6 12.0-0 Rb8 13.Na4 Qc7) 10.d4 Nce4 11.0-0 Nc3 12.Bc3 Ba3 13.bc6 bc6; E) 9.Nh4 dc4 10.Nf5 ef5 11.bc6 bc6 12.Bc4 Ne5 13.Be2 Rb8; F) 9.0-0 Qc7 (9...Rc8 10.Nd4 dc4 11.bc6 bc6 12.Nf5 ef5 13.Bc4 Rb8; 9...Nc5 10.Nd4 Bg6 11.bc6 bc6 12.cd5 cd5 13.f4 a6; 9...dc4 10.Bc4 c5 11.h3 h6 12.Nh4 Bh7 13.Nf3 Nb6; 9...a6 10.Nd4 ab5 11.Nf5 ef5 12.cb5 Qc7 13.Qc2 Bh2; 9...Nb6 10.cd5 cd5 11.d3 Rc8 12.Rc1 Re8 13.Nh4 Qe7; 9...Qa5 10.Nh4 dc4 11.Nf5 ef5 12.Bc4 Rac8 13.f4 Nc5) 10.cd5 ed5 11.d4 Rab8 12.h3 a6 13.Rc1 Nb6.

8.d3 dc4 9.dc4 Qe7 =+.

8.cd5 cd5 A) 9.0-0 Nbd7 (9...Re8 10.Nc3 Nbd7 11.Nd4 Bg6 12.f4 Rc8 13.Rc1 Nc5; 9...h6 10.Nd4 Bg6 11.f4 Nbd7 12.Nc3 Nc5 13.f5 ef5; 9...Qe7 10.Nc3 Nbd7 11.Nh4 Rfc8 12.Rc1 Nc5 13.d4 Nce4; 9...Bg6 10.Nc3 Nbd7 11.Nh4 Qa5 12.Ng6 hg6 13.Qa4 Qc7) 10.Nc3 Rc8 11.Rc1 Bg6 12.Nh4 Ne5 13.d3 Qb6; B) 9.Nd4 Nbd7 (9...Bg6 10.f4 Nbd7 11.Nc3 e5 12.fe5 Ne5 13.0-0 Rc8; 9...Be4 10.0-0 e5 11.Nf3 Nbd7 12.Nc3 Bf5 13.Rc1 Rc8; 9...Re8 10.Nf5 ef5 11.0-0 Nbd7 12.Nc3 Rc8 13.Rc1 Nc5) 10.Nf5 ef5 11.Nc3 Nc5 12.Rc1 Rc8 13.0-0 h6; C) 9.Nc3 Qa5 (9...Nbd7 10.0-0 Rc8 11.Rc1 Bg6 12.Nh4 Ne5 13.Ng6 hg6; 9...Re8 10.Nd4 Nbd7 11.0-0 Rc8 12.Nf5 ef5 13.Rc1 Nc5; 9...Qe7 10.Nd4 Nbd7 11.0-0 Rfc8 12.Rc1 Nc5 13.Nf5 ef5; 9...Bg6 10.0-0 Nbd7 11.Nh4 Rc8 12.f4 Qa5 13.Rc1 Nc5; 9...h6 10.Nd4 Bg6 11.f4 Nbd7 12.0-0 Nc5 13.f5 ef5) 10.Nh4 Nbd7 11.Nf5 ef5 12.0-0 Rfc8 13.Rc1 Ba3.

8.cd5 ed5 A) 9.Nd4 Bg6 (9...Be4 10.0-0 Qc7 11.d3 Bg6 12.f4 Qe7 13.Qd2 c5) 10.0-0 Nbd7 11.Nc3 c5 12.Nf3 h6 13.g3 Qe7; B) 9.Nc3 Nbd7 (9...a6 10.a4 Nbd7 11.Nd4 Bg6 12.0-0 Qc7 13.f4 ab5) 10.Nd4 Bg6 11.bc6 bc6 12.f4 Qb8 13.f5 Qb2.

7.Be2 dc4

8.Bc4 0-0 9.0-0 =+.

8.Bc4 0-0 9.Nc3 Bg4 10.h3 Bh5 11.0-0 cb5 (11...a6 12.a4=) 12.Nb5 Be7 13.Be2 a6 14.Nbd4 Nbd7 15.a4 (15.Rc1 Qa5 16.Qb3 Nc5=) 15...Bg6 (15...Rc8 16.Rb1=) 16.Bc4 (16.Nh4 Be4=) 16...Rc8 (better is 16...e5 17.Ne2 Rc8=) 17.Qe2? (better is 17.d3=+) 17...e5–+ 18.Nb3 (better is 18.Nh4 ed4 19.Ng6 hg6 20.Bd4–+) 18...e4 (better is 18...Nb6 19.Ba6 ba6 20.Ne5 Qd5 21.Ng6 fg6–+) 19.Ne5=+ Ne5 (19...Bh5 20.f3–/+) 20.Be5 Nd7 21.Bd4 Bd6 22.Rfc1 Nf6 23.Rab1 Ba3 24.Re1 Rc6 25.Be5 Qc8 26.d3= Rd8 27.Nd4+= ed3 28.Bd3 Bd3 29.Qd3 Rc3 30.Qf5 Nd7 31.Bf4 Re8 32.Qd5 Nc5 33.Nf5 Rd3 34.Nd4 Rd8 35.Qc4 Qd7 36.a5 Rc8 37.Rb6+= g6 38.Reb1 Rd2+= 39.Rd6 Qe8 40.Qd5 Ne4 41.Rd7?? Nf6 42.Qb3 Qd7 43.Qa3 Ne4 44.f3 Nc3 45.Rb6?? Rd4! 46.ed4 Qd4 47.Kh1 Qf4 48.Rb7 Ne2 49.Rb1 Ng3 (50.Kg1 Nf5–+; better is 49...Rc2!? 50.Rd1 Ng3 51.Kg1–+) 0–1. Kreuzer – Schmalfuss, Weinheim, 1986.

8.Bc4 a6 9.a4 =+.

8.Bc4 a6 9.Qa4 =+.

7.Be2 h6

8.0-0 dc4 9.Bc4 cb5 10.Bb5 Nbd7 11.d3 =.

8.cd5 cd5 9.0-0 0-0 =.

8.0-0 0-0

9.Na3 Qa5 A) 10.Qc1 a6 (10...Rc8 11.Bf6 Ba3 12.Bb2 Bb2 13.Qb2 dc4 14.Bc4=; 10...Nbd7 11.Nd4 Be4 12.bc6 bc6 13.d3 Bf5 14.Nc6+=) 11.c5 Be7 12.Bc3 Qd8 13.bc6 Nc6 14.Bf6=; B) 10.Qb3 Nbd7 (10...Ne4 11.d4 Nd2 12.Nd2 Qd2 13.Bf3 Qb4 14.Rfc1=; 10...Rc8 11.bc6 Nc6 12.Rfc1 Be4 13.Nb5 Be7 14.Nbd4=) 11.d4 Ne4 12.c5 Bc7 13.Rfb1 e5 14.Rc1=; C) 10.bc6 bc6 (10...Nc6 11.cd5 Qd5 12.Nb5 Rfd8 13.Bf6 gf6 14.d4=) 11.Nc2 Ne4 12.d3 Nc3 13.Bc3 Qc3 14.Ncd4=.

9.Na3 a6 10.bc6 Nc6 (10...bc6 11.d4 Nbd7 12.c5 Bc7 13.Qa4 Be4 14.Bc3=) 11.Rc1 Rc8 12.c5 Be7 13.Bf6 Bf6 14.d4 =.

9.Na3 Qb6 A) 10.d4 Be7 (10...Qa5 11.c5 Be7 12.Qb3 Nbd7 13.Rfc1 Ne4 14.Bc3=; 10...Bc7 11.c5 Qa5 12.Qb3 Ne4 13.Bd3 cb5 14.Nb5+=) 11.c5 Qc7 12.Qa4 Nbd7 13.Rfc1 Rfb8 14.Bc3=; B) 10.Rc1 Nbd7 (10...a6 11.d4 Qa5 12.c5 Be7 13.b6 Nbd7 14.Qb3+=; 10...Bg4 11.h3 Bf3 12.Bf3 Rd8 13.d4 Qa5 14.c5+=) 11.d4 Qa5 12.c5 Bc7 13.Qe1 Qe1 14.Rfe1=; C) 10.Bf6 gf6 (10...Ba3 11.Bd4 Qa5 12.Bc3 Qb6 13.Nd4 Bg6 14.Qa4+=) 11.Qa4 Qc5 12.bc6 Nc6 13.Nb5 dc4 14.Nd6=.

9.Na3 Nbd7 10.d4 (10.bc6 bc6 11.cd5 ed5 12.Nd4 Bg6 13.Nc6 Qb6 14.Bb5+=; 10.Nd4 Bg6 (10...Bh7 11.bc6 bc6 12.cd5 ed5 13.Nc6 Qb6 14.Qc1+=) 11.bc6 bc6 12.cd5 ed5 13.Nc6 Qb6 14.Bb5+=) 10...Be7 (10...Rc8 11.bc6 Rc6 12.c5 Bb8 13.Rc1 Bg4 14.Bb5=; 10...Ne4 11.c5 Be7 12.bc6 bc6 13.Bd3 a5 14.Qc2=; 10...Be4 11.c5 Bb8 12.Rc1 Qc7 13.Ne5 Ne5 14.de5=) 11.Nc2 (11.c5 Qc7 12.Rc1 Rfc8 13.Qb3 Ne4 14.Bd3=) 11...cb5 12.cb5 (12.cd5 Nd5 13.Bb5 N7f6 14.Bd3+=) 12...Rc8 13.Bd3 Bd3 (13...Ne4 14.Ne5=) 14.Qd3 Qa5 15.a4 Ne4 16.Rfc1 Nb6 17.Nce1 Rc1 (17...Na4?! 18.Qb3 Rc1 19.Bc1+=) 18.Bc1 Rc8 (worse is 18...Na4 19.Qc2 Nec3 20.Bb2+/–) 19.Bb2 (19.Bd2!? Nd2 20.Qd2–/+) 19...Rc4–+ 20.Nc2 Ra4 21.Ra4 Qa4 22.h3? (22.Ba3 Ba3 23.Na3–+) 22...Qa2 (22...Qa2 23.Ba3 Ba3 24.Na3 Qf2 25.Kh2 Ng3–+) 0–1. algernon (2565) – fluors, net–chess.com, 2014.

9.Na3 Qe7 A) 10.Qb3 a6 (10...Rd8 11.d4 Ne4 12.c5 Bc7 13.Qa4 cb5 14.Nb5=; 10...Rc8 11.bc6 Nc6 12.Bf6 Qf6 13.cd5 ed5 14.Nb5=) 11.b6 Nbd7 12.d4 c5 13.cd5 ed5 14.dc5+=; B) 10.Qa4 a6 (10...e5 11.d4 ed4 12.Nd4 Qe5 13.g3 Be4 14.cd5=; 10...Rc8 11.d4 Nbd7 12.c5 Bb8 13.Rfc1 Ne4 14.Nc2=) 11.Nd4 Bg6 12.Rfc1 e5 13.Ndc2 dc4 14.b6–/+; C) 10.bc6 Nc6 (10...bc6 11.Qa4 e5 12.cd5 cd5 13.Nb5 Bd7 14.d4=) 11.Nb5 Bc5 12.d4 Bb4 13.a3 Ba5 14.Rc1=.

9.Na3 Re8 A) 10.bc6 bc6 (10...Nc6 11.Nb5 Bb8 12.Rc1 dc4 13.Bc4 e5 14.d4=) 11.d4 Nbd7 12.c5 Rb8 13.Qc1 Bc7 14.Nc2+=; B) 10.Qa4 Nfd7 (10...e5 11.d4 e4 12.Ne5 c5 13.Nc2 cd4 14.ed4=; 10...Nbd7 11.bc6 Nc5 12.Bf6 Qf6 13.Qb5 bc6 14.Qc6=) 11.d3 e5 12.Rfc1 Nb6 13.Qd1 Qe7 14.Qb3+=; C) 10.d4 Ne4 (10...Be7 11.Qa4 a6 12.Ne5 cb5 13.cb5 Qb6 14.Rac1=; 10...Bc7 11.Qb3 Nbd7 12.Rfc1 Be4 13.Bc3 c5 14.dc5=) 11.c5 Bc7 12.Qa4 cb5 13.Bb5 Rf8 14.Qb3=.

9.a4 Nbd7 10.Nc3 +=.

9.a4 Qe7 10.d4 Nbd7 11.c5 Bc7 12.Nbd2 (12.Nc3 Ne4+=) 12...e5+= 13.Nb3 e4 (13...Ne4 14.h3+=) 14.Nfd2 Nh7 15.Re1 Ng5 (15...Qg5 16.a5 a6 17.b6+=) 16.Nf1 Nf6 (16...Bg6 17.Qd2+=) 17.Bc3 (17.Ng3 Bg3 18.fg3 Qd7=) 17...Qd7 (17...Rab8 18.Ng3 Bg6 19.Na5=) 18.Ng3 (18.h4 Ne6=) 18...Be6 (18...Bg4 19.Rb1=) 19.Ba5 (19.h4 Ngh7+=) 19...Bb8 (19...Bg3 20.hg3 Bf5 21.Bc3=) 20.Qd2 (20.h3 Bh3 21.Bf1 Bg4–+) 20...Ng4 (20...Bg4 21.Rab1=) 21.Reb1 (21.h3!? Nf6 22.Reb1+=) 21...f5+= 22.Bg4 fg4 23.Qe2 Nf3 (better is 23...Kh7!?+=) 24.gf3+/– gf3 25.bc6 (25.Qd1 cb5 26.c6 Qc6 27.ab5 Qe8+= (worse is 27...Qb5 28.Nc5 Qe8 29.Rb7+/–)) 25...bc6 (25...fe2? 26.cd7 Bd7 27.Bc3+–) 26.Qa6 (26.Qd1 Bg3 27.hg3 Bh3=) 26...Bh3 (26...Bg3 27.hg3 (27.fg3 f2 28.Kh1 Rab8–+) 27...Bh3 28.Nd2–+) 27.Nd2 (better is 27.Be1+/–) 27...Bg2= 28.Ndf1?? (28.Rb7 Qh3 29.Bc7= (29.Qc6 Bg3 30.Qe6 Qe6 31.fg3 Qh3 32.Nf3 ef3–+)) 28...Qh3–+ 29.Ra2 (worse is 29.Qc6 Bh1!! 30.Qe6 Qe6 31.Rb7 Qh3 32.Rg7 Kg7 33.Nf5 Rf5 34.Kh1 Qg2) 29...h5 (29...Bh1 30.Kh1 Qg2) 30.Rb7 (30.Qc6 Bh1 31.Qe6 Qe6 32.h4 Qh3 33.Rb8 Qg2) 30...Bh1!! 31.Rg7 (31.Kh1 Qg2 Mate attack; 31.Nh1 Qg2 Mate attack) 31...Kg7 32.Nh5 (32.Qb7 Kg8 33.Qg7 Kg7 34.Nh5 Kg8 35.Nf4 Bf4 36.ef4 Qg2) 32...Kh8 33.Nf4 Rf4 0–1. Frosinos,Ioannis – Siakoulis,O, 3rd Open, Glyfada GRE, 2001.

9.Nd4 Bg6 =.

6.b5 Nbd7

7.a4 Bb4 8.Be2 0-0 9.0-0 a6 10.Nc3 cb5 11.ab5 Ne4 (better 11...dc4!? 12.ba6 Ra6 13.Ra6 ba6 14.Bc4 a5=) 12.cd5+– Bc3 (12...Nb8 13.Nd4+–) 13.dc3 ed5 (13...Ndc5!? 14.c4 Re8+–) 14.Qd5+– (worse 14.ba6 Qb6 15.Qd5 Qb2 16.Qf5 Qe2 17.Qe4 ba6+–) 14...Bg6 15.ba6 ba6 16.Ba6 Nec5 17.Be2 Qb6? (better 17...Be4 18.Ra8 Qa8 19.Qa8 Ra8+–) 18.Ra8 Qb2 19.Rf8 Kf8 (19...Nf8 20.Qc5 Qe2 21.Nd4+–) 20.Bc4 Qc3 (20...Qb7+–) 21.Bb5 Be4 22.Qd6 Kg8 23.Bd7 (23.Bd7 h6 24.Bc6+–) 1–0. DEFFM – GuestNTXV, freechess.org, 2018.

7.a4 Bc5 8.d4 Be7 9.bc6 bc6 10.Ba3 =+.

7.Nc3 Bb4 8.Nh4 Bg4 9.Nf3 Qa5 (9...dc4 10.bc6 bc6 11.Bc4=+) 10.Qb3 (10.h3 Bf3 11.Qf3 Bd6=+) 10...Nc5=+ 11.Qc2 Nfe4 (11...Bf5 12.Qd1 dc4 13.bc6 bc6 14.Nd4=+) 12.Nb1 (12.Ne4 de4 13.a3 ef3 (13...Bf3? 14.ab4 Qb4 15.Bc3+–) 14.ab4 Qb4 15.Bg7 Bf5=) 12...f6 (12...Bf5 13.Qd1 0-0 14.a3+=) 13.a3 (better 13.bc6 Qa4 14.Nd4+=) 13...Nf2?? (better 13...Qa4 14.Nd4 Qc2 15.Nc2 Ba5+=) 14.Kf2 (better 14.ab4 Nfd3 15.Bd3 Nd3 16.Qd3 Qb4 17.Qd4 Bf3 18.gf3+–) 14...Ne4 15.Kg1 Bf3?? (better 15...Bd6+–) 16.ab4 (16.gf3?! Bd2 17.fe4 Be3 18.Kg2 d4+–) 16...Qb4 17.gf3 Ng5 18.Qc3 (better 18.f4 Ne4+–) 18...Nf3 19.Kf2 Qc3 20.Bc3 (worse 20.Nc3 Nd2 21.cd5 cd5+–) 20...Ng5 21.Rg1 Kf7 (21...Ne4 22.Ke2 Kf7 23.Bg2+–) 22.bc6 bc6 (22...Ne4 23.Ke2 bc6 24.Bg2+–) 23.cd5 (23.d3 h6+–) 23...cd5 (23...Ne4 24.Ke2 cd5 25.Bg2+–) 24.Bg2 Rhc8 (24...Ne4 25.Be4 de4 26.Rg4+–) 25.d3 Rc6 (25...Ke7 26.e4 de4 27.h4+– (worse 27.de4 e5+–)) 26.h4 1–0. AhmedSultanov – yandreiy1, lichess.org, 2019.

7.Nc3 Be7 8.Nd4 c5 9.Nf5+/– ef5 10.cd5 Ne5 11.d4 Ned7 12.dc5 Bc5 13.Qb3 0-0 14.Bd3 f4 15.Nd1 Re8 16.0-0+/– Ng4 17.ef4 Qh4 18.h3 Ndf6? 19.Rc1+– Bb6 20.Qc3 Nh6 21.Qd2 Ne4 22.Be4 Re4 23.Rc3 Nf5+/– 24.Qc2 Rae8 25.Rc8 Qf4 26.Bc1 Qe5 27.Re8 Qe8 28.Ne3 Nd6 29.a4+/– f5 30.Ba3 Be3 ½–½. Harding,Timothy – Breslin,William, Ireland, 1989.

7.Nc3 h6 8.Nd4 Bg4 9.Qa4 (9.f3!? c5 10.Nc6 Bf3 11.gf3+– (11.Qf3?! bc6 12.Qg3 dc4=)) 9...Nb6 (9...Nc5 10.Qc2 e5 11.Nb3=+) 10.Qb3=+ c5 11.Nc2 (11.Nf3 Bf5=+) 11...Be7 (11...Bd6 12.Na4–/+) 12.d4 (12.f3 Bh5–/+) 12...dc4 (12...Rc8 13.dc5 Nc4 14.Bc4 dc4 15.Qc4 Bc5 16.Qa4–/+) 13.Bc4 Bf5 (better 13...Rc8 14.dc5 Nc4 15.Qc4 Rc5–/+) 14.Be2?? (better 14.Rc1–/+) 14...c4!–+ 15.Bc4 Bc2 16.Qc2 Nc4 17.Bc1 (17.0-0 0-0–+) 17...Rc8 18.Qa4 (18.0-0 0-0–+) 18...0-0 19.Qa7 (19.0-0–+) 19…Bb4 (19...Bb4 20.0-0 Bc3–+) 0–1. Sebesta,Petr – Trombik,Karel, Orlova Open, 2017.

7.d3 Bb4 8.Bc3 Qa5 9.Qd2 Bc3 10.Qc3 Qc3 11.Nc3 0-0 (11...dc4 12.dc4 cb5 13.Nb5=) 12.Nh4 Bg6 13.Ng6 hg6 14.Be2 a6 15.bc6 bc6 16.d4 c5 17.dc5 Nc5 18.cd5 ed5 19.0-0 (19.Rd1 Rad8+=) 19...Rfd8 20.Rfd1 Attacking the isolated pawn on d5 20...a5 (20...Rd6 21.Rd2+=) 21.Bf3+/- Nce4 22.Rac1 (22.Nd5 Nd5 23.Rd5 Rd5 24.Be4 Rad8 25.Bd5 Rd5+/-) 22...Rac8 (22...Nc3 23.Rc3 Rdc8 24.Rcd3+= (24.Bd5? Nd5 25.Rc8 Rc8-+)) 23.Nb5 (23.Nd5!? Rc1 24.Nf6 gf6 25.Rc1+/-) 23...Rc1 24.Rc1 Nd2 25.Be2 Rb8 26.a4 Nde4 27.f3 Ng5 28.Kf2 (28.Rc6 Re8 29.Kf2 Ra8+/-) 28...Ne6 29.Rc6 Ra8 30.Nc7 Rc8 (better 30...Nc7!? 31.Rc7 g5+/-) 31.Nd5!+- (31.Nd5 Rc6 32.Ne7 Kf8 33.Nc6+-) 1-0. Fernandez,Michael (2185) - Martin,Le (2205), Titled Tuesday, 2021.

7.d4 Bb4 8.Bc3 Qa5 9.Bb4 Qb4 10.Qd2 Qe7 11.Nc3 0-0 12.Be2 Qb4 (better is 12...cb5!? 13.cb5 Ne4 14.Ne4 de4+=) 13.bc6 bc6 14.c5 Rab8 15.0-0 Qa3 16.Nh4 Rb2 17.Qe1 Bc2 18.Bd1 Bd3 19.Be2 Be2 20.Ne2 Ne4 21.Qc1 Qb4 22.Rb1 (22.Nf4 Nc3 23.a3 Qb3+=) 22...Rb8 23.Rb2 Qb2 24.Qb2 Rb2 25.Nc1 Nd2 26.Rd1 f6 (26...a5 27.Re1–/+) 27.Nf3 Nc4 28.Ne1 Kf7 29.Ned3 Rb1 30.Kf1 e5 31.Ke1? (better is 31.Re1+=) 31...e4–+ 32.Nf4 Nb2 33.Kd2 Nd1 34.Kd1 Rb2 35.Nfe2 f5 36.f4 Kf6 37.h3 g5 38.g3 gf4 39.Nf4 Nf8 40.Nh5 Kg6 41.Nf4 Kg5 42.Ke1 h5 0–1. craig4000 – Snicks, ChessWorld.net, 2012.

7.Be2 dc4 8.Bc4 cb5 9.Bb5=+.

7.Be2 c5 8.0-0 Bd6 9.d3 dc4 10.dc4 Qc7 11.Nbd2 0-0 12.Qb3 h6 13.Bd3 Bd3 ½–½. Teichmann,Erik – Davidovic,Aleksandar, Australia, 1998.

7.Be2 h6 8.0-0 Bd6 9.d4 dc4 10.Bc4 0-0 11.Nbd2 c5 12.Ne5 cd4=+ 13.ed4 Nb6 14.Bb3 a6 15.ba6 Ra6 16.Rc1 Qb8 17.h3 Rc8 18.Qe2= Nbd5 19.Ndc4 Bb4 20.Nd3 Rac6 21.Nb4= Nb4 22.Ne5 Rc1 23.Rc1 Rc1 24.Bc1 Qc7 25.Qc4 Qc4 26.Bc4 Nfd5 27.a3 Nc2 28.Bb2 Nf4 29.g3 Nh3 30.Kf1 f6 31.Nd3+= Ng5 32.Ke2 Ne4 33.Bb3?? Nd4?? 34.Bd4+– Kh7 35.Nc5 Nc5 36.Bc5 e5 37.Bd5 Bc8 38.Kd3 f5 39.Bd6 e4 40.Kd4 g5 41.Ke5 Kg6 42.a4 h5 43.Be7 b6 44.Bd8 Bd7 45.Bb3 Kh6 46.Bb6 h4 47.gh4 gh4 48.Be3 Kg6 49.Bd1 Bc8 50.Be2 Bd7 51.a5 Bc6 52.Bf4 Bd7 53.Kd6 Bc8 54.a6 h3 55.a7 Bb7 56.Ke5 Bc6 57.Bf1 (57...h2 58.Bh2+–; 57.Bc4 e3 58.fe3 Be4+–) 1–0. Nuessel,Georg (2145) – Zepke,Armin (1950), Bayernliga, 2006.

7.Ne5 cb5 8.cb5 Bd6 9.Nd7 Qd7 10.a4 0-0 11.Be2 Qc7 12.f4 Qe7 13.0-0 Ne4 14.Bg4 Bc5 15.Bf5 ef5 16.Ba3 b6 17.Bc5 Qc5 18.Re1 d4 19.Kf1 de3 20.de3 Rad8 21.Qe2 Rfe8 22.Rd1? (better is 22.Ra2–/+) 22...Rd1–+ 23.Qd1 Qe3 24.Qf3 (24.Ra2–+) 24...Qc5 (24...Qc1 25.Ke2 Ng3 26.Kd3 Rd8 27.Qd5 Rd5) 25.Ra2 (25.g3 Qc1 26.Kg2 Qb2 27.Nd2 Qd2 28.Kg1 Qd4 29.Kg2 Qa1 30.Qf1 Qb2 31.Kg1 Rc8 32.Qe1 Rc1 33.Qc1 Qc1 34.Kg2 Qb2 35.Kh3 Nf2 36.Kg2 Ng4 37.Kg1 Qh2 38.Kf1 Qf2) 25…Qc1 (25...Qc1 26.Ke2 Ng3 27.Kd3 Rd8 28.Qd5 Rd5) 0–1. Valpa – Jule, playchess.de, 2005.

7.Nh4 Bg4 8.Be2 Be2 9.Qe2 Bd6 10.a4 0-0 11.Nf3 dc4 12.Qc4 cb5 13.ab5 Rc8 14.Qd3 Nc5 15.Qe2 Be7 16.Bd4?? Nb3–+ 17.0-0 Na1 18.Ba1 h6 19.Ne5 Bd6 20.f4 Be5 21.Be5 Nd7 22.Bd4 f6 23.Qh5 Qe8 24.Qg4 e5 25.Bc3 Qe7 26.f5 Rc7 27.Rf3? Nc5 28.Rh3 Kh8 29.Bb4 Rd8 30.Na3?? Qd7 31.Rg3 Nd3 32.h4 Rc1 33.Kh2 Rh1!! (34.Kh1 Nf2 35.Kg1 Ng4 36.Rg4 Rc8–+) 0–1. Irene – Taxi, HCL–B2222 playchess.de, 2003.

7.Nh4 Bg6 8.Ng6 hg6 9.Nc3 Nc5 10.Qe2 Be7 11.0-0-0 (11.bc6!? bc6 12.cd5 cd5 13.Rb1=) 11...a6 12.d4 Nce4 13.Ne4 Ne4 (< 13...de4 14.bc6 bc6 15.c5=) 14.bc6 bc6 15.c5 (15.Qc2 Rb8 16.Bd3 Qa5 17.cd5 cd5 18.Be4 de4–/+) 15...Qa5 16.Qc2 (16.Rd3!?=+) 16...Qa2–/+ 17.Bd3 Rb8 18.f3 Nf6 19.Rd2 Kd7 20.Kd1 Rb3 21.Ke2 Rhb8 22.Rb1 Bd8–/+ 23.Qc1 Qa5 24.Ra1 Qb4 25.Ra2 a5 26.Rc2 a4 27.Qd2 Qd2–/+ 28.Rd2 a3 29.Ra1?? ab2–+ 30.Rb1 Ne8 31.g4 Nc7 32.Bc2 R3b4 33.h4 Nb5 34.Rd3 Bh4 35.f4 Bd8 36.Kf3 g5 37.f5 ef5 38.gf5 Bf6 39.Kg4 Na7 40.Ra3 Nc8 41.Ra6 Rc4 42.Bd3 Rc3 43.Bc2 Rc2 44.Ra2 Re2 45.Kf3 Rh2 46.Kg3 Rc2 47.Kf3?? Bd8 48.Kg4 f6 49.Kh5 Bc7 50.Kg6 g4 51.Kg7 Bd8 52.Kf8 g3 53.Rh1 b1Q 54.Rh7 Be7 55.Re7 Ne7 56.Kf7 Qa2 57.e4 de4 58.Kf6 Nf5! 59.d5 Qd5 60.Kg6 Qe6 61.Kg5 Rg8 62.Kf4 Rf2 0–1. Otte,Marco – Fassaert,D (1900), Gent, 2000.

7.a4 dc4

8.Bc4 cb5 9.Bb5 Rc8 10.Bf6 Qf6 11.d4 Bb4 12.Nbd2 =.

8.bc6 bc6 9.Na3 Bc5 =+.

8.Bc4 Nb6=+

9.Be2= c5 10.0-0 Be7 (10...Bd6 11.d3 Nbd7 12.a5=) 11.d3+= 0-0 (11...a6 12.ba6 Ra6 13.d4+=) 12.a5 Nbd7 13.Nbd2 (13.Nh4 Bd6+=) 13...e5 (13...Bg4 14.a6 Rb8 15.Qb3+=) 14.e4 Be6 15.Ne5 Ne5 16.Be5 Nd7 17.Bb2 Bf6 18.Bf6 Qf6 19.Nc4 (19.Nf3 Qg6+/–) 19...Rfd8 (19...Rad8 20.Qc2+/–) 20.Qc2 Ne5 21.Ne5 Qe5 22.f4 Qd4 23.Kh1 f6 (23...Rac8 24.f5 Bd7 25.Qc4+/–) 24.f5 (24.Ra4 Qd6+/–) 24...Bf7 25.Rfd1 Rac8 26.Bf3 h5 27.g3 Qe5 28.Rac1 b6 29.Qc3 Qc3 30.Rc3 Rd4 31.Rb1 Rcd8 32.Be2 Ra4 33.ab6+= ab6 34.Kg2 Rdd4 35.Kf3 Rdb4 36.Rcc1+/– Ba2 37.Rb4 Rb4 38.Ra1 Bf7 39.Ra8 Kh7 40.Rf8 1–0. Svitek,Volker – Mironov,Oleg E (2185), Praha Cedok op, 1996.

9.Be2 c5 10.d3 Rc8 11.Qb3 (11.a5 Nbd7+=) 11...Qd5 (11...Be7 12.a5 Nbd7 13.0-0+=) 12.Qc2 (12.Qd5 ed5 13.Bf6 gf6+=) 12...c4 13.e4 Bb4 14.Kf1 Ne4 15.de4 Be4 16.Qd1?? (better is 16.Qc1 Bd3 17.Nc3 (17.Bg7?? Be2 18.Kg1 Bf3–+) 17...Be2 18.Ne2+= (18.Ke2?? Qd3 19.Ke1 Nd5–+)) 16...c3 17.Qd5?? (better is 17.Nc3 Bc3 18.Bc3 Rc3 19.a5 Bf3 20.gf3–+) 17...cb2–+ (17...Bd5?! 18.Bc1=+; 17...Nd5?! 18.Bc1=+; 17...ed5?! 18.Bc1–/+) 18.Qe4 Rc1 19.Bd1 ba1Q (20.g4 Rd1 21.Kg2 Rh1 22.Kh1 Qa4–+) 0–1. Berlacki – Magrin, Venezia II, 1971.

9.Be2 Nbd5 10.0-0 (10.Nd4 Bb1 11.Rb1 c5=) 10...Be7 (10...Bd6 11.bc6 bc6 12.Nd4=) 11.Nc3 (11.Nd4 Bb1 12.Rb1 c5=) 11...0-0= 12.Nd5 Qd5 13.d3 Bg6 (13...Bg4 14.bc6 Qc6 15.Ne5+/–) 14.Nh4 (14.Ne5 Rad8+=) 14...Bh5 15.Bh5 Nh5 16.Nf3 (16.e4 Qg5 17.Nf3 Qh6+=) 16...cb5 17.Bd4 (17.e4 Qd6=) 17...ba4=+ 18.Ra4 a6 19.Ne5 (19.e4 Qd6=+) 19...Nf6 20.Qf3 (better is 20.Qa1!?=+) 20...Qf3 21.Nf3 Rfc8 22.h3 (22.Rb1 b5 23.Ra2 Nd5–+) 22...Nd7 (22...b5 23.Ra5 Bb4 24.Ra2–+) 23.Ne5 (23.Rc4 Bd6–/+) 23...Ne5–+ 24.Be5 f6 (24...b5 25.Ra2–+) 25.Bh2 b5 (Black gets the initiative) 26.Ra2 Rc6 27.g4 e5 28.Rb1 Rd8 29.Rba1 Rd3 30.Ra6 Ra6 31.Ra6 b4 32.Kf1 Ra3 33.Rb6 Ra2 34.Bg3 Kf7 35.f4 ef4 36.Bf4 Rb2 37.e4 Bc5 38.Rb7 Kg6 39.Ke1 Bd4 40.Rb5 Bc3 41.Kd1 Rb1 42.Kc2 Rh1 43.e5? fe5 44.Be5 Be5 45.Re5 Rh3 46.Rb5 b3 47.Kd2 Rg3 48.Ke2 Rg4 49.Rb3 Rf4 50.Rg3 Kf6 51.Ke3 Rf5 52.Ke4 g6 53.Rd3 0–1. Ruhle,Ernst Albrecht – Ruprich,Udo, Seefeld op, 2003.

9.Be2= Bd6 10.a5 Nbd7 11.a6 =.

9.Be2 Bd6 10.bc6 bc6 11.Nd4 =.

7.a4 Qc7

8.Be2 Be7 9.0-0 0-0 10.Nc3 Nb6 (10...dc4 11.Bc4 Rfd8 12.Rc1=) 11.cd5= Nbd5 12.Rc1 Rac8 (12...c5 13.Nh4 Nb4 14.Nf5 ef5 15.d4=) 13.d3 Nc3 14.Bc3 Qd7 (14...cb5 15.e4 Bg4 16.Bf6 Qc1 17.Be7 (17.Qc1?! Rc1 18.Rc1 Bf6 19.ab5 g6=) 17...Qd1 18.Bd1+= (18.Rd1?! Rfe8 19.Bb4 ba4=+)) 15.Ne5 (15.bc6 bc6 (15...Rc6? 16.Ne5 Qc7 17.Nc6 bc6 18.e4+–) 16.e4 Bg6+–) 15...Qe8 (15...Qd6!? 16.Nc4 Qc7+–) 16.e4+– Bg6 17.bc6 bc6 18.h4 h6 19.Rb1 (19.Qb3 Bh7+–) 19...Bh7 (better 19...Nd7!? 20.Nc4 Rb8+–) 20.Rb7+– Rd8 (20...Bd6 21.Ra7 Ra8 22.Ra8 Qa8 23.Qb3+–) 21.Qa1 (21.Ra7?! Ne4 22.Qc2 Bc5+=) 21...Ra8 (21...Rb8 22.Ra7 Bc5 23.Ra6+–) 22.Rfb1 Bc5 23.Bd4 Bd4 24.Qd4 c5 25.Qc5 Qa4 26.Bd1 Rfc8 (26...Qa2 27.Rc1 Qd2+–) 27.Qc8!! (27.Qc8 Rc8 28.Ba4+–; 27.Ba4?! Rc5 28.Rb8 Rc8 29.Rc8 Rc8+–) 1–0. pumpkin – birdmove, net–chess.com, 2019.

8.h3 a6 9.Be2 (9.ba6 ba6 (worse 9...Ra6 10.cd5 Rb6 11.Bd4+–) 10.Nh4 Bb1 11.Rb1 Bd6=) 9...ab5=+ 10.ab5 Ra1 11.Ba1 h6 (11...Bd6 12.bc6 bc6 13.cd5 ed5 14.0-0=+) 12.Nc3 Ne4 (12...Bd6 13.bc6 bc6 14.cd5 ed5 15.Nd4=) 13.Ne4 Be4 14.0-0 Bd6 (14...dc4 15.Bc4 Qd6 16.bc6 Bc6 17.Nd4=) 15.d3 (15.bc6!? bc6 16.Bg7+–) 15...Bf3= 16.Bf3 Nf6 (16...0-0!?=) 17.Bf6 gf6 18.Qa1 e5? (18...Ke7!?+–) 19.cd5 (19.bc6 dc4 20.cb7 Ke7+–) 19...cd5 (19...cb5 20.Qa8 Qb8 21.Qb8 Bb8 22.Rb1+–) 20.Qa8 (20.Rc1 Qb8+–) 20...Qb8 21.Qb8 Bb8 22.Bd5 b6 23.Bc6 (23.Ra1 Ke7+–) 23...Ke7 24.Ra1 Rd8 25.Ra8 Bc7 (25...f5 26.Kf1+–) 26.Ra7 Kd6 27.d4 Bb8? (27...Rc8+–) 28.Rf7 ed4 29.ed4 (29.Rf6?! Ke7 30.Rh6 d3+–) 29...Ke6 30.Rh7 (better 30.Rb7+–) 30...Rd4 31.Kf1 Bf4 (31...Rd1 32.Ke2 Rb1 33.Bd7 Kd5 34.g3+–) 32.g3 Bc1 33.Rb7 h5 (33...Rd1 34.Ke2 Rd2 35.Ke1 Rb2 36.Rb6 Bd2 37.Kf1 Bc3+–) 34.Rb6 h4 35.Bf3 Kf5 (35...Rd6 36.Rb8 hg3 37.fg3+–) 36.Bg4 Kg5 (36...Kg6 37.gh4 Bb2 38.h5 Kg7 39.Rb7 Kh6 40.Kg2+–) 37.Be2 (37.gh4!? Kg6+–) 37...hg3 38.fg3 Rb4 39.Rc6 Rb3 (39...Be3+–) 40.Rc1 Rg3 41.Rc4 (better 41.Rc5 Kf4 42.b6 Rh3+–) 41...Rh3 42.b6 Rb3 (42...Kg6+–) 43.Rc6 (43.Rc6 Kf4 44.Rf6 Kg5 45.Rc6+–) 1–0. GuestLBYB – GuestBTVP, freechess.org, 2017.

8.h3 cb5 9.Bf6 Nf6 10.cd5=+.

8.Nh4 Bg4 9.f3 Bh5=.

7.a4 Bd6

8.bc6 bc6 9.Nd4 Bg6 (9...Be4 10.Nc3=) 10.Nc6 Qb6 11.Bf6 Nf6 12.cd5 Nd5 13.Nd4 0-0 (13...Qb2 14.Bb5 Kf8 15.Nc3 Nc3 16.dc3 Qc3 17.Kf1=+) 14.Na3 (14.Nc3 Rab8=) 14...Ba3 (14...Bc5 15.Nc4 Qd8 16.Nb3=) 15.Ra3 Qc5 (15...e5 16.Rb3 Qc5 17.Rb5=) 16.Ra1 e5 (16...Rab8 17.Rc1 Qd6 18.Nc6+=) 17.Rc1+= Qc1? (better is 17...Qd6 18.Nb5 Qd7+=) 18.Qc1+– ed4 19.Be2 (19.Qc5 Rad8+–) 19...Rfb8 (better is 19...Rfc8 20.Qa1 de3 21.de3 Rc2+–) 20.Qa1?? (20.0-0 Rb1 21.Qc5 Rf1 22.Kf1 Rb8 23.Qd5 Rb1 24.Bd1 h6+–) 20...Nb4?? (20...Rb1 21.Qb1 Bb1 22.ed4 Bc2–+) 21.0-0+– Nc2 22.Qa2 d3? 23.Bg4 Rd8 24.f4 Be4 25.Qc4 Re8 26.Bd7 Re7 27.f5 Rd7 28.Qe4 Rad8 29.f6 gf6 30.Rf6 Rb8 31.Qg4 (31...Kf8 32.Qd7+–) 1–0. Bulcourf,Carlos (2295) – Benko,Francisco (2220), Buenos Aires Najdorf op, 1993.

8.Be2 0-0 9.0-0 Qc7 10.Nc3 e5 11.d4 (11.cd5!? cd5 12.Rc1=+) 11...e4–/+ 12.Nd2 Bh2 13.Kh1 Bd6 14.Qb3 Bg4 (14...dc4 15.Nc4 Be6 16.bc6 Qc6 17.Qb5 Qb5 18.Nb5–/+) 15.Bg4=+ Ng4 16.cd5 Be7?? (better 16...Ba3! 17.g3 Bb2 18.Qb2 cd5–/+) 17.g3+= Bh4? (better 17...cb5 18.ab5 Qb6+=) 18.Kg2?? (18.Ba3 Rfe8 19.Nce4 cd5+–) 18...Bg5?? (better 18...Ne3 19.Kh1 Nf1 20.Rf1 Bf6–+) 19.Nce4+– (worse 19.Nde4 Be3 20.dc6 bc6+–) 19...Bh6 (19...Be7 20.Rac1+–) 20.dc6 bc6 21.Rac1 Rab8 22.Qd3 (22.Ba3 c5+–) 22...Qd8 (22...Rfd8+–) 23.Ba3 (23.Rc6?! Nde5 24.Qc3 Nc6 25.bc6 Qd5+=) 23...Re8 (23...cb5 24.Bf8 Nf8 25.ab5 Qd7+–) 24.bc6 (24.Rc6?! Nde5 25.Qe2 Nc6 26.Qg4 Na5+–) 24...Ndf6 (24...Rb6 25.Nd6 Be3 26.Ne8 Bd2+–) 25.c7 Qc8 26.Nd6 Re3 (26...Qd7 27.cb8R Rb8+–) 27.Nc8 Rd3 28.cb8Q (28.Ne7 Kf8 29.cb8Q Ne8 30.Ng6 Kg8 31.Qe8) 28…Rd2 1–0. AhmedSultanov (1705) – frodo76, lichess.org, 2019.

8.Be2 0-0 9.0-0 e5 10.bc6 bc6 11.cd5 cd5 12.Nc3 a6 13.Ba3 Qe7 14.Bd6 Qd6 15.Qb3 (15.d4 e4 16.Nd2 Rfc8=+) 15...Rfb8 Black plans d4 (15...d4 16.ed4 ed4 17.Nb1-/+) 16.Qa2 d4 17.Nb1? (better 17.Ng5!? Qe7 18.ed4 ed4 19.Bf3 dc3 20.Ba8 Ra8 21.dc3-/+) 17...d3-+ 18.Bd1 Nc5 (18...Be6!? 19.Qa3 Qa3 20.Na3-+) 19.Qa3 Qc7 20.Nc3 Nce4 (20...Rb7 21.Rc1 Rc8 22.a5-/+) 21.Ne4=+ Ne4 22.Bb3 Bg4 (better 22...Ra7=+) 23.Qa2?? (better 23.Bd5 Bf3 24.gf3+=) 23...Bf3-+ 24.gf3 Ng5 (24...Nd2 25.Bf7 Qf7 26.Qd2-+) 25.Kg2? (better 25.Bd5 Ra7 26.h4=) 25...Qd7-+ 26.Bd5?? (26.Rg1 Qh3 27.Kh1 Qf3 28.Rg2-+) 26...Qh3 27.Kh1 Rb4 (27...Nf3 28.Bf7 Kh8 29.Qe6 Qh2) 28.Rg1-+ Rh4 29.Rg2 Rf8 (29...Nf3 30.Bf3 Qf3 31.Kg1-+) 30.Rag1 (30.Qb2 Nf3 31.Bf3 Qf3 32.Qe5-+) 30...Nf3-+ 31.Bf7?? (better 31.Bf3 Qf3 32.Qb2-+) 31...Kh8 32.Be6 Ng1 (32...Qh2 33.Rh2 Rh2) 33.Bh3+/- Nh3 34.Qd5?? (34.f4 ef4 35.Qb2=) 34...Nf2?? (better 34...Rb8 35.Rg7 Rb1 36.Kg2 Rg1 (36...Kg7 37.Qe5 Kf7 38.Qc7 Kg6 39.Qc6 Kh5 40.Qe8 Kh6 41.Qe6 Kh5 42.Qf7 Kg5 43.Qe7 Kg4 44.f3 Kh5 45.Qh7 Kg5 46.f4 Nf4 47.ef4 Rf4 48.Qg7 Kf5 49.Qd7 Kg5 50.Qd8 Kh5 51.Qa5 Kh4 52.Qa6 Rg4 53.Kf2 Rf4 54.Ke3+-) 37.Kf3 e4 (37...Kg7?! 38.Qe5 Kh6 39.Qf6 Kh5 40.Qf7 Rg6 41.Qh7 Rh6 42.Qf5 Ng5 43.Kg2=) 38.Qe4 Re4 39.Rg1 Ra4-+ (39...Ng1?! 40.Ke4 Nh3 41.f4=)) 35.Kg1 (better 35.Rf2 Rg8 36.e4+-) 35...Ng4 (35...Nh3 36.Kh1 Rf1 37.Rg1 Rg1) 36.Qd3+- Nf6 (better 36...Rc8 37.Kf1 Ra8+-) 37.Qd5?? (better 37.Qa6 Rb4 38.Rf2+-) 37...Nd5-+ 38.e4 (38.a5 Ra4 39.Rg5 Ra2-+) 38...Nb4 (38...Re4 39.Rf2 Re1 40.Kg2 Nf4 41.Rf4 Rf4 42.h3 Re2 43.Kg1 Ra4 44.Kf1 Rd2 45.Ke1 Rb2 46.h4 Ra1) 39.d3 Nd3 0-1. dannysmet (2030) - PEDREROL (2020), Rated Blitz game, lichess.org, 2020.

7.a4 Be7

8.bc6 bc6 9.Nd4 Qc7 (9...Qb6!? 10.Ba3 Bg4=) 10.Nf5+= ef5 11.cd5 cd5 12.Bb5 (12.Nc3 f4+=) 12...0-0= 13.0-0 Nb6 (13...Rfb8 14.Qc1 Rc8 15.Qc7 Rc7 16.Nc3=) 14.Bd4 Nfd7 (14...Ng4!? 15.g3 a6+=) 15.a5+/- Nc4 16.Nc3 Qd6 17.Qe2 (17.Bd7!? Qd7 18.d3+-) 17...Rfc8 18.Rfc1 Bf6? (18...Nde5 19.a6+=) 19.Nd5?? (better 19.Bd7 Qd7 20.Bf6 gf6 21.d3+-) 19...Bd4+= 20.ed4 (worse 20.Bc4 Ba1 21.Ra1 Ne5-/+) 20...Qd5 21.Bc4 Qd4 22.Rab1 (22.Qd3 Qf6 23.Qd7 Rc4+=) 22...Ne5= 23.d3 f4 24.Rb7 Nc4 25.dc4 (worse 25.Rc4 Rc4 26.dc4 Qa1 27.Qf1 Qa5=+) 25...Re8 26.Qh5 (26.Re7!? Re7 27.Qe7+=) 26...Qc4= 27.Rc7?? (better 27.Rcb1=) 27…Qc7!!-+ (27...Qc7 28.Rd1 Qc3-+) 0-1. dale70 (2055) - Germain (2000), Rated Blitz game, lichess.org, 2015.

8.Nd4 Bb1 9.bc6 Be4 10.cd7 Nd7=.

8.Be2 Qc7 9.0-0 0-0 10.Na3 a5 11.Rc1 Ng4 12.h3 Nge5 13.Ne5 Ne5 14.d4 Nd7 15.c5 e5 16.b6 Qb8 17.Bc3 Nb6–/+ 18.cb6 Ba3 19.Ra1 Bd6 20.Qd2 Re8 21.Ba5? ed4–+ 22.ed4 Bf4 23.Qe1 Bd3 24.Ra2?? Be2–+ 25.Re2 Re2 26.Qe2 Ra5 27.Ra1 Bd6 28.Qe1 Ra6 29.a5 Qf8 30.Rb1 Qe7 31.Qd2 Ra8 32.Re1 Qf6 33.Rb1 Qf4 34.Qf4 Bf4 35.Ra1 Ra6 36.Re1 Kf8 37.g3 Bd2 (38.Ra1 Ba5–+) 0–1. Bittner,Hannjoerg – Hesse,Peter, corr, 1987.

8.Nh4 Bg4=+ 9.Be2 Be2 10.Qe2 Ne4 (10...dc4 11.Qc4 Rc8 12.0-0=+) 11.Nf3= (11.Bg7? Rg8 12.Bc3 Bh4–+) 11...0-0 (11...Bf6 12.Bf6 Qf6 13.d4=) 12.0-0 Rc8 13.d3 Nef6 14.Ne5 (14.Nbd2 Bd6=) 14...Ne5 15.Be5 Bd6 16.Bd6 Qd6 17.Nc3 dc4 18.dc4 Qe5 19.Na2 (19.Rac1 cb5 20.ab5 Qc7=) 19...cb5=+ 20.ab5 Ne4 21.Rac1 a6 22.ba6 ba6 23.Rfd1 h6 24.h3 Rc6 (24...Rfd8 25.Nb4 Rd6 26.Qc2=) 25.Rd4 Rfc8 26.Qc2 (26.Rcd1 Qf5=) 26...Nd6 Exerts pressure on the isolated pawn 27.c5 (better 27.Qa4!?=) 27...Nb5 28.Rc4? (better 28.Qd2!? Nd4 29.ed4–+) 28...Na3–+ 29.Qd3? (29.Re4 Qd5 30.Qb2 Qe4 31.Qa3–+) 29...Nc4 30.Rc4 (30.Qc4 Rc5 31.Qf1 Qb2 32.Rc5 Rc5 33.Qa6 Rc2 34.Qa8 Kh7–+) 30...Rc5 (better 30...Qa1 31.Rc1 Qa2–+) 31.Rc5 Qc5 (31...Rc5 32.Qd8 Kh7 33.Qd3 f5 34.Qb1–+) 32.Qa6 g6 33.Qb7 Rc7 (better 33...Qc2!? 34.f4–+) 34.Qb8 Kh7 35.g3?? (35.Kh2–+) 35...Qc2 36.Nb4 (36.e4–+) 36...Qb1 (36...Qd1 37.Kh2 Rc1 38.Qh8 Kh8 39.e4 Qg1) 37.Kg2 (37.Kh2 Rd7 38.g4 Qe1–+) 37...Rc4 (better 37...Qe4 38.f3 Qe5–+) 38.Na6 (38.Qf8 Qe4 (38...Qb4?! 39.Qf7 Kh8 40.Qf6 Kg8 41.Qg6 Kf8 42.Qf6 Ke8 43.Qe6 Kd8 44.Qg8 Ke7 45.Qg7 Ke8 46.Qg6 Kd7 47.Qh7 Kc8 48.Qh8 Kc7 49.Qg7 Kb8 50.Qh6=+) 39.f3 Qb7–+ (39...Qe3?! 40.Qf7 Kh8 41.Qf8 Kh7 42.Qf7 Kh8 43.Qf8 Kh7 44.Qf7=)) 38...Qb8 (38...Qe4 39.Kg1 Rc1 40.Kh2 Qh1) 39.Nb8–+ Kg7 40.Nd7 Ra4 (40...f6 41.g4–+) 41.h4 (41.f4 f6–+) 41...h5 (41...g5 42.hg5 hg5 43.Nc5–+) 42.Kf3 f6 (better 42...Ra7!? 43.Ne5 Kf6–+) 43.Nc5–/+ Rc4 44.Ne6 Kf7 45.Nf4 Ra4 (45...f5 46.Ne2–/+) 46.Kg2 (46.e4 Ra5=+) 46...Ra5 47.Kf3 g5 (47...Ra3 48.Ke4–/+) 48.hg5=+ fg5 (48...Rg5!? 49.e4 Ra5=+) 49.Nd3?? (better 49.Nh5 Kg6 50.g4+=) 49…g4 (49...g4 50.Kf4 Ke6–/+) 0–1. Abdullaevich (1810) – tuncayyy (1925), lichess.org, 2019.

7.Nc3 Bd6

8.bc6 bc6 9.Nd4 Bg6 =.

8.d4 0-0 9.Be2 cb5 10.cb5 Bb4 11.0-0 Rc8 12.Qb3 Qa5 13.Rac1 h6 14.a3 Bd6 15.a4 Nb6 16.Ra1 Nc4 17.Rfc1 Nb2 18.Qb2 Nd7 19.Nd2 Bb4 20.Ndb1 (20.Ncb1!?+=) 20...Nb6–/+ 21.Qb3?? (21.Bf1 Rc7 22.Na2 Rc1 (22...Na4?! 23.Qb3 Rc1 24.Nc1=) 23.Nc1 Bd6–/+) 21...Rc7 (better is 21...Bb1 22.Qb1 Rc3 23.Rc3 Bc3–+) 22.Na2–/+ Rc1 23.Nc1 Rc8 24.Na2 Be1 25.Na3 Na4 26.Kf1 Bc3 (26...Bd2 27.Rd1–/+) 27.Nc3 (better is 27.Rc1!?+=) 27...Rc3 28.Qd1 Nb2 29.Qe1 Qc7 30.g3 b6 31.Qd2 Nd3 32.Kg2 Qc8 33.Kg1 Be4 34.Bf1 Nc1 35.Qb2 Nd3 36.Qd2 e5 37.Bg2 Bg2 38.Kg2 e4 39.Ra2?? (better is 39.Qa2–+) 39…Rc1 (39...Rc1 40.Rc2 Rc2 41.Nc2 Qc2 42.Qc2 Ne1 43.Kh3 Nc2–+) 0–1. Sieber,Martin – Koth,Stefan (2180), Orlova op, 2005.

8.cd5 cd5=+ 9.Be2 0-0 10.d4 Rc8=+ 11.0-0 Qa5 12.Qa4 Qa4–/+ 13.Na4 Ne4 14.Rfc1 h6 15.Rc8 Rc8=+ 16.Rc1 Rc1 17.Bc1 Ndf6 18.h3 g5 19.Nh2? Bh2 20.Kh2 Nf2 21.Nc3 N2e4 22.Ne4 Ne4 23.Bb2 Kf8 24.g4 Bg6 25.a4 Ke7 26.a5 f5 27.Ba3 Kf6 28.Bb4 Be8 29.Kg2 Kg6 30.a6 ba6–/+ ½–½. Engles,Michael – Descamps,Stijn, Telechess, 2003.

7.bc6 bc6

8.Nd4 Bb1 9.Rb1+= Rc8 10.cd5 cd5 11.Bb5 Be7 (11...e5!? 12.Nf3 e4+–) 12.Nc6+– Qc7 13.Ne7 (13.Bd4 a6 14.Ne7 Ke7 15.Ba6 Ra8+–) 13...Ke7 14.0-0 Ne4 (14...Qc2 15.Qe2+–) 15.Ba3 (15.Bg7 Rhg8 16.Bd4 Qc2 17.Bd7 Qd1 18.Rfd1 Kd7 19.Rb7 Rc7 20.Rc7 Kc7+–) 15...Nd6 (15...Kd8 16.Qg4 Rg8 17.Rfc1+–) 16.Ba6 (16.Qg4 Nf6 17.Qa4 a5+–) 16...Rb8 17.Qh5 (17.Qg4 Rhg8+–) 17...Nf6 18.Qg5 h6 19.Qg7 Rbg8 20.Qh8! Rh8 21.Rb7 Rc8 22.Rc7 Rc7 23.d3 (23.Rc1 Rc1 24.Bc1 Nfe4+–) 23...Kd7 (23...Rc2 24.Ra1 Ng4+=) 24.e4 (better 24.Rc1!? Rc1 25.Bc1+–) 24...de4 (24...Rc6 25.Bd6 Kd6 26.Bb5=+) 25.de4 Nde4 26.f3 Nd6 (26...Nc3 27.Rf2=) 27.Rd1 Nd5 28.Bb2 (better 28.Bd3!?=) 28...Rc2–/+ 29.Bg7 (29.Rb1 Nb4 30.Bf1 Na2–/+) 29...Ne3–+ 30.Be5?? (better 30.Rd3 Rg2 31.Kh1 Ra2 32.Re3 Ra6 33.Bh6–+) 30…Nd1 0–1. GuestKYWH – GuestBXJF, freechess.org, 2017.

8.Nd4 Qb6 9.Qb3 Rb8 10.Ba3? (10.Nf5 ef5 11.cd5 cd5=) 10...Bg6 (better 10...Qc7!? 11.Qd1 Rb1 12.Rb1 Ba3 13.Nf5 ef5-+) 11.Bf8=+ Nf8 (11...Rf8 12.Nc3 e5 13.Qb6 Rb6=+ (13...Nb6? 14.Nc6 Rb7 15.cd5+-)) 12.Nc6+= Qb3? (12...dc4 13.Bc4 Bc2 14.Qb6 Rb6+/- (14...ab6?? 15.Nb8 Be4 16.f3+-)) 13.ab3+- Rb3 14.Nc3 N8d7 15.Ra7 0-0 16.Be2 Nc5 17.0-0 Nfe4 18.Ne4 Ne4 19.Ne7 Kh8 20.cd5 Nd2 (better 20...ed5 21.d4 Nc3+-) 21.Rd1 (worse 21.Ng6 hg6 22.Rd1 Ne4 23.de6 fe6+-) 21...Rb2 (21...Ne4 22.d6 Nc3+-) 22.de6 (better 22.d6 Be4 23.Rc7+-) 22...fe6 23.Ng6 hg6 24.f3 Nb3 (24...Kh7!?+/-) 25.Bc4+- Nc5? (better 25...Rc8 26.Be6 Rcc2+-) 26.Rc7 Na4 27.Be6 Re8 (27...Nb6+-) 28.Bf7 Re3 (28...Ra8 29.Bd5 Rab8+-) 29.Bg6 Rb8 30.Rcd7 (30.Rcd7 Rf8 31.R1d5+-) 1-0. zembelek (2020) - danetosic1 (2035), Rated Blitz game, lichess.org, 2015.

8.Nd4 Qb6 9.Nf5? Qb2 (9...ef5?! 10.Bc3=) 10.Nc3 ef5-+.

8.cd5 cd5=+ 9.Be2 Rc8 10.Nc3 Bb4 11.0-0 0-0 12.Qa4 Ba5 13.Nb5= Nc5 14.Qd4 Re8 15.Ba3 e5 16.Ne5= Ne6? 17.Qa4 Ne4 18.d3?? Nc3=+ 19.Nc3 Bc3 20.Rac1? Be5–+ 21.Rc8 Qc8 22.f4 Bf6 23.g4 Bg6–/+ 24.f5 Bf5 25.gf5 Nd4–/+ 26.ed4 Re2 27.Bd6 Qc3 28.Qa7?? Bd4–+ (29.Rf2 Qe1 30.Kg2 Qf2 31.Kh3 Qf3 32.Bg3 Qf5 33.Kh4 Bf6) 0–1. Steyn,AS – Cannon,JM, SAJCC U/14, 2002.

7.Nd4 Bb1

8.Be2 Be2 9.Qe2 cb5 10.cd5 Nd5 11.0-0 Be7 (11...b4 12.a3=+) 12.Ne6 fe6 13.Bg7 Bf6 (13...Kf7 14.Bh8 Qh8 15.Qh5 Kf8 16.Qh6 Kf7 17.Qh5 Kg7 18.Qg4 Kf6 19.Qh4 Kg6 20.Qg4 Kf7 21.Qh5=) 14.Bh8 Bh8 15.d4 Qg5 (15...b4 16.a3+=) 16.Qb5+= 0-0-0 17.Nd2 Rg8 (17...Qg6 18.Rfc1 Kb8 19.a4+–) 18.g3+– Kb8?? (better 18...N5b6 19.Rfc1 Kb8 20.Qg5 Rg5+–) 19.Qd7+– Ne3 (19...Qe7 20.Qe7 Ne7+–) 20.Ne4 Qf5 (20...Qd8 21.Qd8 Rd8 22.fe3 e5+–) 21.Qd6 Ka8 22.fe3 Qe4 23.Rf8 (23.Rf8 Rf8 24.Qf8) 1–0. DEFFM – GuestVQXH, freechess.org, 2019.

8.Rb1 cb5 9.cd5+= Nd5 10.Bb5 (10.Qh5 Nc7 11.Nb5 Nb5 12.Qb5 b6+=) 10...a6= 11.Bd7 (11.Be2 Rc8=) 11...Qd7 12.0-0 Be7 (12...Rc8 13.Nf3=) 13.Nb3 (13.e4 Nf6 14.Qf3 0-0=) 13...0-0 14.Qg4 Nf6 (14...Bf6 15.d4=) 15.Bf6 Bf6 16.Nc5 Qd2? (White creates threats along the open d–file) (better is 16...Qd5 17.d4 b5=) 17.Ne4+– (17.Rb7 Qd5 (< 17...Qa2 18.Nd7 Bc3 19.Nf8 Rf8 20.Rd1+/–) 18.Qb4 Rfd8=+ (< 18...Qa2 19.Nd7+/–)) 17...Qd8 18.Rfd1 (18.Rb7?! Be5 19.f4 Qd5=; 18.Nf6?! Qf6 19.Rb7 Rab8 20.Rb8 Rb8=) 18...h5 19.Qg3 (19.Rd8?! hg4 20.Nf6 gf6=; 19.Qh5?! Qe7+/–) 19...Bh4 20.Rd8 Bg3 21.Ra8 (21...Ra8 22.hg3+–) 1–0. pcmvr (2730) – iozeph (2510), net–chess.com, 2007.

8.Rb1 c5 9.Nf3 =.

8.bc6 Be4 9.cd7 Kd7 10.Qa4 Kc8 11.Rc1 +/–.

8.bc6 Be4 9.cd7 Nd7 10.f3 Bg6 11.cd5 e5 12.Nb3 Bd6 13.Bb5 Qh4 14.g3 Qe7 (14...Qh3 15.Qe2 a6 16.Bd7 Qd7 17.e4+=) 15.0-0 (15.d4 0-0+=) 15...a6 16.Bd7 Qd7 17.e4 Qh3 (17...Rc8 18.d4 f6 19.Rc1+/–) 18.Qe2 0-0 19.a4 (19.d4 ed4 20.Bd4 Rac8+/–) 19...Rac8 (19...Rae8 20.d4+=) 20.d3 (20.d4 ed4 21.Bd4 Rfd8+/–) 20...f6 21.Rfc1 Qd7 (21...Rc1 22.Rc1 Qd7 23.d4+=) 22.Rc4 (22.Rc8 Rc8 23.d4 ed4 24.Nd4 Bc5+=) 22...b5 23.ab5 Qb5 24.Qc2 Rb8 (24...Qb6 25.Kg2 Rc4 26.Qc4+/–) 25.Ba3 Ba3 26.Ra3 Qb6 (26...Bh5 27.Kg2+/–) 27.Nc5+– Be8 (27...a5!?+–) 28.Ra6 Qb1 29.Kg2?? (better is 29.Qc1+–) 29…Rb2–+ (30.Qb2 Qb2 31.Kh3 Bh5–+) 0–1. Bulcourf,Carlos (2210) – Nasjleti,Ezequiel, Traffic op Buenos Aires, 1992.

8.bc6 Bg6 9.cd7 Kd7 10.cd5 ed5 11.Qa4 Kc8 12.Rc1 Kb8 13.Nb5 +–.

8.bc6 Bg6 9.cd7 Qd7 10.cd5 Qd5 = (10...Nd5?? 11.Bb5+–; 10...ed5?? 11.Bb5+–).

7.Nd4 Bg4

8.Be2 Be2 9.Qe2 c5 10.Nf3 Be7 11.cd5 (11.Nc3 0-0=) 11...ed5 12.d3 0-0 13.0-0 Re8 14.a4 Bd6 15.Qc2 Rc8 16.Nbd2 Ne5 17.Rac1 Qd7 18.Be5 Be5 19.Ne5 Re5 20.d4 Rg5 21.f4 Rg6 (21...Rh5 22.dc5 Ng4 23.Rfe1 Rh2 24.Nf3=) 22.dc5+= Qh3 (22...d4 23.Nf3 Ng4 24.Qe4 Ne3 25.Rf2+–) 23.Nf3+– Rc5?? (better 23...Ne4 24.f5 Qf5+–) 24.Qg6!!+– (24.Qg6 Qe6 25.Qd3+–) 1–0. DEFFM – GuestVQXH, freechess.org, 2019.

8.f3 c5 9.fg4 cd4 10.Bd4 Ne4 +=.

7.Be2 Bd6

8.0-0 0-0 9.d4 dc4 10.Bc4 cb5 11.Bb5 a6 12.Bd3 b5 (12...Bd3 13.Qd3 Nb6 14.Rc1=) 13.Nc3 (13.Bf5 ef5 14.Qd3 Ne4=) 13...Bd3=+ 14.Qd3 Qe7 (14...Nb6 15.Rfc1=+) 15.e4= e5 16.d5 (16.Rfd1 Rfd8=) 16...Rfc8 (16...Nc5 17.Qe2 b4 18.Nd1 Nce4 19.Rc1-/+) 17.Rfc1 (17.Nd2 Ba3 18.Rab1 Bb2 19.Rb2 Qa3=+) 17...Nc5-/+ 18.Qe3 (18.Qe2-/+) 18...Ng4 (better 18...b4!? 19.Nd1 Nce4-/+) 19.Qe2= f6 (19...Rc7 20.Nd1=+) 20.h3 Nh6 21.Nh4 (21.Rc2 Qd7=) 21...Nd7 (21...Rc7 22.Rc2=) 22.Qh5 (22.Nd1 Bc5=) 22...Qf7 23.Qf3 Rc4 (23...Nb6 24.Rd1=) 24.Ne2 Rac8 25.Rc4 Rc4 26.Rc1 Nb6 (26...f5 27.Rc4 bc4 28.Nf5 Nf5 29.ef5+=) 27.Ng3 (27.Rc4 Nc4 28.Bc1 g5+/-) 27...Rc1 (better 27...Qc7! 28.Rc4 Nc4=) 28.Bc1+/- g5 29.Nhf5 Nf5 30.Qf5 Nc4? (better 30...Bc5+/-) 31.Nh5?? (better 31.Qc8 Bf8 32.Nf5+- (32.Qa6?! Nd6+-)) 31...Qh5-+ 32.Qe6 (32.Kh2 Kg7 33.Qc8 Bf8 34.Qb7 Kg6-+) 32...Kg7 33.Qd7 Kh6 (better 33...Qf7!? 34.Qc6 Qa7 35.h4-+) 34.f3 Qg6 35.Qe6 (35.Qc8 Qf7 36.Qa6 Qd7-+) 35...Qg7 (35...Kg7!? 36.Qc8 f5 37.a4-+) 36.h4 Bc5 37.Kh1 Be3 (37...Qg6 38.Qa6 Ne3 39.g4 Ng4 40.hg5 Kh5 41.Qb5 (41.fg4 Kg4 42.Qe6 Kg3 43.Qh3 Kh3 44.Be3 Qe4 45.Kg1 Qg2) 41...Nf2 42.Kh2=+) 38.hg5?? (38.d6 Bc1 39.d7-+) 38...Qg5-+ 39.Be3? (better 39.d6 Qh5 40.Qh3 Qh3 41.gh3 Nd6 42.Be3 Kg6 43.Kg2-+) 39...Ne3 (39...Qe3?? 40.Qf6 Kh5 41.g4) 40.g4 (40.Qh3 Kg6 41.Kg1-+) 40...Qh4 41.Kg1 Qg3 (41...Qg3 42.Kh1 Qg2) 0-1. benachamohcine (2080) - forkbomb (2050), Rated Blitz game, lichess.org, 2014.

8.0-0 0-0 9.d4 dc4 10.bc6 bc6 11.Nbd2 Nb6 12.Nc4 Nc4 13.Bc4 Rb8 14.Bc3 Ne4 15.Rc1 Ba3 16.Rc2 Ng5 17.Bd3? Nf3–+ 18.gf3 Bh3 19.Kh1 Bf1 20.Qf1 Qb6 21.Qh3 g6 22.d5 cd5 23.Bf6 Rfc8 24.Re2 Qc7 25.Re1 Bb2 26.Bg5 Bg7 27.Rg1 Rb2 28.Bh4 Qc3 29.Bf1 Ra2 30.Rg4 Bf6 31.Bg3 a5 32.f4 Qc2 33.Qh6 Qe4 34.Kg1 Ra1 35.Qh3 h5! (36.Rg6 fg6–+) 0–1. Raue,Thorsten (1830) – Zachej,Arne (1740), Muensterland Verbandsklasse–B, 2002.

8.0-0 0-0 9.d4 h6 10.a4 Qe7 11.Nbd2 e5 (11...Rfc8 12.c5 Bc7 13.Bc3=) 12.de5 Ne5 (worse 12...Be5 13.Ne5 Ne5 14.bc6 bc6 15.cd5+/-) 13.Ne5 Be5 14.Be5 Qe5 15.Nf3 Qe7 16.Nd4 Bd7 17.Rc1 c5 18.Nf3 Be6 19.cd5 Bd5 20.Qc2 b6 21.Rfd1 Rfd8 22.h3 Rd7 23.a5 Rad8 24.ab6 ab6 25.Qb2 Bf3 (25...Ne4 26.Qe5 Qe6 27.Qe6 Be6 28.Rd7 Rd7 29.Kf1=+) 26.Bf3= Rd1 27.Rd1 Rd1 28.Bd1 Nd5 29.Qa3 Nb4 30.Qa8 Kh7 31.Bb3 Qd7 32.Qb8 Qb5?? (better 32...Qf5 33.Bc4 Qf6+/-) 33.Bf7 (33.Bf7 h5 34.Qg8 Kh6 35.Qh8 Kg5 36.Qg7 Kf5 37.Qg6 Ke5 38.Qe6) 1-0. BeepBeepImAJeep (2730) - MilleetUnecarottes (2065), lichess.org, 2015.

8.0-0 a6 9.a4 0-0 10.ba6 ba6 11.d4 Rb8 12.Bc3 c5 13.dc5 Nc5 14.Nd4 Bb1 15.Rb1 Qc7 16.Qc2 Nfe4 17.Ba1 Bh2 18.Kh1 Be5 19.cd5 ed5 20.Rbc1 Qe7 21.Nf3 Ba1 22.Ra1 Qf6 23.Rad1 Rfd8 24.Rd4 h6 25.Rfd1 Nf2 26.Kg1 Nd1 27.Bd1 Ne4 28.Be2 Rbc8 29.Qd3 Rc3 30.Qa6 Qa6 31.Ba6 Re3 32.Bb5 f6 33.a5 Ra3 34.a6 Nc3 35.Bf1 Ra1 36.Nd2 Re8 37.Kh2 Ne4 38.Bb5 Rb8 39.Rd5 Nd2 40.Rd2 Rb5 41.Rd8 Kh7 0-1. banjoband (2225) - rumen_borisow (2150), Rated Blitz game, lichess.org.

8.0-0 dc4 9.bc6 bc6 10.Bc4 =+.

8.0-0 h6 9.Nd4= Bh7 10.Qb3 Nc5=+ 11.Qd1 Nd3 12.Qb3 Nb2 13.Qb2=+ c5 14.Nf3 0-0 15.d3 dc4 16.dc4 Qc7 17.Nbd2 e5–/+ 18.h3 e4–+ 19.Ne1 Be5 20.Qb1 Ba1 21.Qa1 Rfd8 22.Nb3 Nd7 23.f4 a6 (24.Nc2 Bf5–+) 0–1. Simoncini,M – Bukhari,M, Dubai olm, 1986.

8.Nc3 e5 9.bc6 bc6 10.cd5 cd5 11.Nb5 Bb8 12.Ba3 Nb6 13.d4 a6 14.Nc3 e4 15.Ne5 Bd6 16.Qb3 0-0 17.Rb1 Ba3 18.Qa3 Attacks the isolani on a6 (worse is 18.Qb6 Qb6 19.Rb6 Rfb8=) 18...Re8 19.0-0 Nfd7 20.Nd7 Bd7 21.Qa5 (21.Ba6? Bc8 22.Qc5 Ra6–+ (22...Ba6?! 23.Qb6 Qb6 24.Rb6+=)) 21...Bb5 22.Bb5 ab5 23.Qb5 Re6 24.Rfc1 Rh6 25.Qe2 Qh4 26.h3 f5 27.Rb5 Rg6 (27...Qd8 28.Rc5+/–) 28.Qf1 (28.Nd5 Nd5 29.Qc4 Rf8 30.Rd5 Kh8 31.Rf5 Rgf6+–) 28...f4 29.ef4 e3 30.fe3 Qh3 31.Qf2 (better is 31.Re1!? Qd7 32.Qf3+–) 31...Rg2+/– 32.Qg2 Qe3 33.Kh2 Qf4 34.Qg3 Qh6 35.Kg2 Qd2 36.Kh3 Qh6 ½–½. Fekete,Albert (2260) – Szabo,Balazs (2250), HUN–chT2 Maroczy, 2008.

8.bc6 bc6 9.Nd4 Be4=.

7.Be2 Be7

8.0-0 0-0 9.bc6 bc6 10.Ne5 (Better is 10.Nd4!?+=) 10...Ne5=+ 11.Be5 Nd7 12.Bc3 dc4 13.Bc4 Nb6 14.Bb3 Bd3 15.Re1 c5 16.Bc2 Bc2 17.Qc2 c4 18.Rd1 Rc8 19.a4 Qd3 20.Qd3 cd3 21.a5 Nc4 22.a6 e5 23.f3 f6 24.f4 ef4 25.ef4 Bc5 26.Kh1 Rfe8 27.g3 Re2 28.Ra4 Nd6 29.Bb4 Ne4 30.Bc5 Rc5 31.Kg1 Rh5 32.Rd4? Reh2–+ (33.Re4 Rh1 34.Kf2 Rd1–+) 0–1. valpa – Smilodon, HCL–B1995 playchess.de, 2003.

8.0-0 0-0 9.Nd4 Bb1 10.bc6 Bg6 11.cd7 Qd7 (worse is 11...Nd7 12.cd5 e5 13.Nb5+/–) 12.cd5 Qd5 (worse is 12...ed5 13.f4 Be4 14.f5+=) 13.Bf3 Be4 14.d3 Bf3 15.Qf3 Rac8 16.e4 Qd7 17.Rfc1 Rfd8 18.Rc8 Rc8 19.Qd1 Rd8 20.Rc1 (20.Qf3!?=) 20...Ne4–/+ 21.de4 e5 22.Rc4 b5 (worse is 22...ed4 23.Rd4 (23.Bd4?? b5 24.Rc2 Qd4 25.Qd4 Rd4–+) 23...Qc8 24.h3+=) 23.Rc3 ed4 24.Rd3 Bc5 25.f3 Qe6 26.a3 Qc4 Black prepares the advance b4 27.Kh1 a5 Black prepares b4 28.h3 a4 29.Qd2 b4 30.ab4 Bb4 31.Rd4 Rd4 (31...Bd2?? 32.Rd8) 32.Qd4 Qd4 33.Bd4 a3 34.Kg1 Bd2 (34...Bd2 35.Kf2 Bc1–+) 0–1. Chirpii,Alexandru – Vecherkin,Alexey (2080), Geller Memorial op–B 3rd, 2007.

6.b5 Be7

7.a4 cb5 8.cb5 0-0 9.Be2 Nbd7 10.d4 (10.0-0 Rc8=) 10...Rc8 (better 10...Bb1 11.Qb1 Qa5 12.Kf1 Rfc8=+) 11.Nc3?? (better 11.0-0=+) 11...Bb4–+ 12.Qb3 (12.0-0 Bc3 (12...Rc3?! 13.Bc3 Bc3 14.Ra2–+) 13.Bc3 Rc3–+) 12...Qa5 13.Rc1 (13.0-0 Bc3 (13...Rc3?! 14.Bc3 Bc3 15.Rac1–+) 14.Rfc1 Bd2 15.Nd2 Qd2–+) 13...Ne4 14.Nd2 (14.0-0 Bc3 15.Bd3 Bb2 16.Qb2–+) 14…Nc3 (14...Nc3 15.g4 Bg6 16.Bc3 Bc3–+) 0–1. jaddwarrior (1935) – AB_Normal (1890), ChessWorld.net, 2016.

7.a4 dc4 8.Bc4 cb5 (8...a6 9.Bd4=) 9.ab5 (9.Bb5 Nc6=) 9...0-0 (9...Nbd7 10.Be2=) 10.d4 (10.Bf6 Bf6 11.Ra3 Qe7=) 10...Qc7 11.Nbd2 Nbd7 12.0-0 Nb6 Black threatens to win material: Nb6xc4 (12...Bb4 13.Qb3 Bd2 14.Nd2=) 13.Rc1 (13.Qb3 Nc4 14.Qc4 Qb6=) 13...Nc4 14.Nc4 Black has the pair of bishops 14...Rfc8 15.Qb3 Qd8 16.Nfe5 Nd7 17.Rfd1 Be4 18.f3 White threatens to win material: f3xe4 18...Bd5 19.e4 Bc4 20.Nc4 (20.Rc4 Not 20...Ne5 21.Rc8 Nf3 (21...Qc8?! 22.de5 a5 23.ba6 ba6 24.Rc1+=) 22.Qf3 Rc8–/+) 20...Nb6 The black knight is safe in front of b5 21.Ne5 Bf6 22.Rc8 Rc8 23.f4 g5 24.f5 White wins space 24...Be5 25.de5 White has new doubled pawns: e4+e5. 25...Qe8 26.f6 White has a new strong pawn: f6 26...Nc4 27.Qg3 h6= 28.Bc1 Qf8?? allows the opponent back into the game 29.Bg5+/– hg5?? leads to further unpleasantness 30.Qg5 Kh7 31.Rd3 Ne3 32.Re3 Rc1 33.Kf2 Rc2 34.Kf1 Rc1 35.Ke2 (35.Ke2 Rc2 36.Kd1 Rc1 37.Kc1 Qc5 38.Kd1 Qd4 39.Ke2 Qc4 40.Kf3 Qf1 41.Kg3 Qg2 42.Kg2 Kh8 43.Qg7) 1–0. Krebbers,Wilfried (1875) – Hoffmann,Petra (1620), Kleve op, 2002.

7.a4 Nbd7 8.Be2 0-0 9.Nd4 Bg6 10.bc6 bc6? (better 10...Qb6 11.Ba3 Ba3+=) 11.Nc6+- Qe8 12.Ne7 Qe7 13.Ba3 Qd8 14.Bf8 Qf8 15.0-0 dc4 16.Bc4 Nb6 17.Be2 Rd8 18.d4 h6 (18...e5 19.a5 Nbd5 20.Bf3+-) 19.Nd2 Nbd5 20.Nf3 Nc3 21.Qe1 Ne2 22.Qe2 Bh5 23.h3 (23.Rfc1 Qe8+-) 23...Ne4 24.Rfc1 (24.g4 Bg6+-) 24...Qd6? (24...Ng5 25.Kh1+-) 25.Rab1 (better 25.g4 Bg6 26.Ne5+-) 25...Qd5?? (better 25...Ng5+-) 26.Qb5 (better 26.Rb5!? Qd7 27.Rh5 Qa4+-) 26...Qa2 (26...Bf3 27.gf3 Nd2 28.Qd5 Rd5 29.Rb7 Nf3 30.Kf1+-) 27.Rb2 (better 27.Qh5 Qf2 28.Kh2 Qg3 29.Kh1 Qf2+-) 27...Qa3 28.Ne5 (28.g4 Bg6 29.Qb4 Qb4 30.Rb4 Nd6+-) 28...Nd6 (28...Nc3 29.Qa5 Qb2 30.Qd8 (30.Qc3?! Qc3 31.Rc3 f6+-; 30.Rc3?! Ra8+-) 30...Kh7 31.Rf1+-) 29.Qb4 (29.Qa5 Nb7 30.Qc3 Qc3 31.Rc3 Nd6+-) 29...Qb4 30.Rb4 f6 31.Nc6 Rd7 (31...Ra8 32.Na5 Be8 33.Rc7+-) 32.Rb8 Kf7 33.Ra8 Bg6 (33...Be2 34.Ra7 Ra7 35.Na7+-) 34.Ra7 Ra7 35.Na7 Be4 (35...Bd3 36.Rc7 Kf8 37.Nc6+-) 36.a5 (36.Nb5 Ne8+-) 36...g5 37.Nc8 Nc8 38.Rc8 Kg6 (38...Bd3 39.Rc6 Ke7 40.a6+-) 39.a6 f5 (39...Bd5 40.f3 f5 41.Rd8+-) 40.a7 (better 40.f3 Bd5 41.Rd8 Bc6+-) 40...f4 (40...Kf6 41.Rf8 Ke7 42.Rh8+-) 41.a8Q (41.f3!? Bb7 42.Rb8 Bc6+-) 41...Ba8 42.Ra8 fe3 43.fe3 Kf5 44.Kf2 h5 Black plans g4 45.Ke2 g4 (45...Kf6 46.h4!+-) 46.Ra5 Kf6 47.Re5 (47.h4!? Kg6 48.Re5 Kf6+-) 47...gh3 48.gh3 h4 49.Kf3 Kg6 50.Kg4 (50.Re6 Kh7 51.d5 Kh8 52.Re7 Kg8 53.d6 Kf8 54.e4 Kg8 55.d7 Kf8 56.d8Q) 50...Kf6 51.Kh4 Kf7 52.Kg4 Kf6 53.h4 Kf7 54.h5 Kf6 55.h6 Kf7 56.Kg5 Kg8 (56...Ke8 57.h7 Kd8 58.h8Q Kd7 59.Qh7 Kc8 60.Rc5 Kd8 61.Rc7 e5 62.Qd7) 57.Re6 (57.Kg6 Kf8 58.Re6 Kg8 59.Re8) 57...Kf7 (57...Kh7 58.e4 Kg8 59.Kg6 Kf8 60.e5 Kg8 61.Re8) 58.Re5 (58.d5 Kg8 59.Kg6 Kf8 60.e4 Kg8 61.Re8) 58...Kg8 (58...Kf8 59.Kg6 Kg8 60.Re8) 59.Kg6 Kf8 60.Re6 Kg8 61.Re8 1-0. BeepBeepImAJeep (2480) - olborg (2105), lichess.org, 2017.

7.a4 h6 8.Nc3 0-0 9.Be2 (9.g3 c5+=) 9...dc4 10.Bc4 Bd3 (10...Nbd7 11.0-0=) 11.Ne5 (11.Bd3 Qd3 12.Qe2 Qe2 13.Ke2 Rc8=) 11...Bc4 12.Nc4 Nd5 (12...cb5 13.ab5 (worse is 13.Nb5 Qd5 14.Nc7 Qg2–/+) 13...Qc7 14.d3=) 13.0-0 Nc3 (13...Qc7 14.bc6 Nc6 15.Nb5+=) 14.Bc3+= (14.dc3?! Qc7 15.Qf3 Nd7=) 14...Qd5 15.Qg4 f6 16.Rfb1 (16.Rab1 Nd7+=) 16...h5 (better is 16...Rc8!? 17.d3 Nd7+=) 17.Qe2+/– c5 (17...h4 18.e4 Qd7 19.d4+/–) 18.e4+– Qg5 19.Rb3 (better is 19.e5!? Qf5 20.ef6 Bf6 21.Re1+–) 19...Nd7+/– 20.Rf1 (20.Na5 Rab8+=) 20...Nb6 (20...Qg4 21.f3 Qf4 22.g3+=) 21.a5+/– Nc4 22.Qc4 Kf7? (better is 22...Qg6!?+/–) 23.f4+– Qg4?? (23...Qh4 24.f5 Kg8 25.b6+–) 24.f5 (better is 24.h3 Qg6 25.f5+–) 24...Rfe8 25.Qe6 Kf8+/– 26.e5?? c4–+ 27.Rb4 Bc5 28.d4 Bd4 29.Kh1 Re6 30.Rc4 Qe2 31.Bb4 Kg8 32.Rfc1 Re5 (32...Re5 33.Rd4 Rf5–+) 0–1. Weigel,Hans Juergen (2010) – Cassens,Erhard Otto (1810), Hamburg Seniors op, 2004.

7.Qb3 0-0 8.Be2 (8.cd5 cd5 9.Be2 Nbd7=+) 8...Nbd7 9.d4 dc4 Black fights for the Initiative 10.Bc4 Rc8 11.Nc3 cb5 12.Bb5 a6 13.Be2 (13.Bd7 Qd7 14.Ne5 Qc7=+) 13...b5 14.0-0? (better 14.Rc1!?=+) 14...b4–+ 15.e4 (better 15.Ba6 bc3 16.Bc3–+) 15…bc3 (15...bc3 16.ef5 cb2 17.Qb2 Rc6–+) 0–1. Moraes,Maurino Anastacio D – Calcado,A (2140), Brazil Curitiba Open, 2018.

7.Qb3 cb5 8.Qb5 Qd7 (8...Nbd7 9.cd5 (9.Qb7? Rb8 10.Qa7 Rb2–+) 9...a6 10.Qa4= (10.Qb7? Rb8 11.Qa6 Rb2–+)) 9.cd5= ed5 10.Qe2 (10.Ne5 Qb5 11.Bb5 Nbd7=) 10...0-0 (10...Nc6 11.Nd4=+) 11.Ne5 (11.Nd4 Bg6=+) 11...Qc7 12.Nc3?? (12.Nd3 Nc6 13.Nc3 Qa5–/+) 12...a6 (better 12...Qe5 13.Qb5 Nc6–+) 13.d4 (13.Nd1 Nbd7 14.Rc1 Qc1 15.Bc1 Ne5–+) 13...Nc6 (13...Bb4!? 14.Kd1 Rc8–/+ (14...Bc3?! 15.Rc1=+)) 14.Nc6=+ Qc6 15.Rc1 Qd7 (15...Rac8 16.Qd1=+) 16.f3 (16.Qd1 b5=+) 16...Rac8 (16...b5 17.g4 Be6 18.Qc2=+) 17.g4 Bg6 (better 17...Be6!?=+) 18.h4+= h6 (18...h5 19.g5 Ne8 20.e4 de4 21.Bh3=) 19.Bh3+– Qd6 (better 19...Ne8 20.g5 Bf5 21.Bf5 Qf5 22.gh6 gh6+–) 20.f4?? White intends g5 (better 20.g5!? Nd7 21.h5+–) 20...Be4 (better 20...Ne4 21.g5 Rc6 22.Ne4 Be4 (worse 22...de4 23.Rc6 Qc6 24.gh6+=) 23.Rc6 Qc6–/+) 21.Ne4?? (better 21.Rg1 Rfd8 22.g5=) 21...Ne4 (worse 21...de4 22.Rc8 Rc8 23.g5+=) 22.g5 (22.0-0 Ng3 23.Qf2 Nf1 24.Rf1 Qe6–+) 22...Rc1 (22...Qb4 23.Kd1 Qa4 24.Rc2 Rc2 25.Qc2 Nf2 26.Kc1 Qc2 27.Kc2 Nh1 28.Bg2–+) 23.Bc1 Ng3 24.Qg2 Nh1 25.Qh1 (25.Ke2 hg5 26.hg5 Qc6 27.Qh1 Qb5 28.Kf2 Qb1–+) 25...Qb4 26.Kf2 Qc4 (26...hg5 27.hg5 Qb1 28.Qf1–+) 27.Qd1 (27.a3 Qa2 28.Kf3 Qb1–+) 27...Qa2 28.Kf3 (28.Qe2 Qc4 29.Bd2 b5–+) 28...hg5 29.hg5 f5 (29...Qh2 30.Bf5–+) 30.Kg3 (30.Qh1 Ba3 31.Bf5 Rf5–+) 30...g6 (30...Bb4 31.Bg2 Kf7 32.Qh5 Ke7 33.Qh7–+) 31.Bf1 (31.Bg2 Kg7–+) 31...Rc8 (better 31...Bb4 32.Bg2–+) 32.Bd3 (32.Bg2 Kg7–+) 32...Kg7 (better 32...Rc3 33.Kf3 Qh2 34.Qf1–+) 33.Bd2 b5 34.Bb1 Qb2 35.Kf2 (35.Bd3–+) 35...Bb4 36.Ke2 (36.Kf3 Bd2 37.Bd3 Rc1–+) 36...Bd2 37.Kf3 Rc1 38.Qe2 (38.Bc2 Rd1 39.Kf2 Be1 40.Kg2 Qc2 41.Kh3 b4 42.e4 Rd3) 38...Rb1 39.Qh2 (39.Kf2 Qc1 40.Kf3 Qh1 41.Qg2 Rf1 42.Ke2 Qg2 43.Kd3 Rc1 44.e4 fe4) 39...Rf1 40.Ke2 (40.Qf2 Qc1 41.Kg3 Be1 42.Qe1 Qe1 43.Kh3 Rg1 44.e4 Qg3) 40...Be3! 41.Kf1 (41.Ke3 Qh2 Mate attack) 41…Qh2 (41...Qh2 42.Ke1 Qd2 43.Kf1 Qf2) 0–1. klinealan – rilke (1675), gameknot.com, 2019.

7.Qb3 Nbd7=+ 8.d4 dc4 (8...0-0 9.Nbd2=+) 9.Bc4 cb5 (9...Rc8 10.Nc3=) 10.Bb5= 0-0 (10...a6 11.Be2=) 11.0-0 a6 (11...Rc8 12.Ba3=) 12.Be2 (12.Bd7 Nd7 13.Nbd2 Nf6=) 12...Qb6 (12...Rc8 13.Rc1= (13.Qb7? Rb8 14.Qa6 Rb6–+)) 13.Nbd2 (13.Ba3 Ba3 14.Na3 Qb3 15.ab3 Rfc8=) 13...Rac8 (13...Rfc8 14.Rfc1=) 14.Rac1 (14.Rfc1 Rfd8=) 14...Ne4 (14...Qb3 15.ab3 b5 16.Ra1=+) 15.Nc4 (15.Ne4 Be4 16.Nd2 Bd5=) 15...Qb3 16.ab3 b5 (16...Bb4 17.Rfd1=) 17.Ncd2 (17.Na5 Nb8=) 17...Nd2=+ 18.Nd2 Bb4 19.Nf3 Bc2 (19...Rfd8 20.Rc8 Rc8 21.Ne1–/+) 20.Ra1=+ Nb8 21.Ba3 Ba3 22.Ra3 Rc3 23.Nd2 Bd3 (23...e5 24.Nf3=+) 24.Bd3= Rd3 25.Ne4 ½–½. Bennett,Hilton – Zakaria,F, 107th ch–NZL, 1999.

7.Nc3 dc4 8.Bc4 cb5 (8...a6 9.a4+=) 9.Bb5= Nbd7 10.d4 (10.e4 A) worse is 10...Ne4 11.Ne4 Be4 A1) worse is 12.Bg7 Rg8 13.Bc3 a6 (worse is 13...Rg2 14.Ne5+/–) 14.Bd7 Qd7+=; A2) 12.Ne5+=; B) 10...Be4 11.Ne4 Ne4 12.Bg7 Rg8+=) 10...0-0 11.0-0 a6 12.Bd3 Bd3 13.Qd3 b5 14.Rfc1 Nb6 (14...Rc8 15.Ne4=) 15.a4 (15.Ne5 Rc8=) 15...Nc4 (15...b4 16.Ne2=) 16.Qe2 (16.ab5 Nb2 17.Qe2 ab5 18.Qb2 Ra1 19.Ra1 b4=) 16...Nb2 17.ab5 ab5 18.Qb2 b4 (18...Ra1 19.Ra1 b4 20.Ne2=) 19.Na4 Qb8 (19...Nd5 20.Qb3=) 20.Ne5 Qb5 21.Nc5 Ra1 22.Qa1 Nd5 23.Qb1 (23.Qb2 Bc5 24.Rc5 Qa6=) 23...Bd6 (23...Rb8 24.Ncd7 Rd8 25.Nc5=) 24.Qd3 (24.Ned3 Rb8 25.Ne4 Be7=) 24...Qd3 (24...Rb8 25.Qb5 Rb5 26.Ned7+=) 25.Ned3= Rb8 26.Kf1 (26.Rb1 Rb5=) 26...h5 27.Ke1 (27.Rb1 Bc5 28.dc5 f5=) 27...Bh2 28.g3 h4 29.gh4 Bd6 30.Kd2 Be7 31.h5 Nf6 (31...Kh7 32.Ne5=) 32.Rc4 The isolani on b4 becomes a target (32.Kc2 Bd6+=) 32...b3 33.Kc3 Nh5 (33...Kh7 34.Nb3 Kh6 35.Ne5+=) 34.Nb3 Nf6 35.Nbc5 Kf8 (35...Rc8 36.e4+=) 36.e4 (36.Ra4 Rc8+=) 36...Ke8 (36...g5 37.Ra4+=) 37.f3 (37.Ra4 Rc8 38.Kd2 Nd7 39.Nd7 Kd7 40.Ra7 Kd8+=) 37...Rc8 (37...Nd7 38.Na6 Rd8 39.Rc6+=) 38.Nb7 (38.f4 Ra8+=) 38...Rc4 39.Kc4 g5 40.Ne5 (40.Ndc5 g4 41.fg4 Ng4+=) 40...Nd7 41.Nd7 (41.Ng4 Ba3+=) 41...Kd7 ½–½. Schaefer,Dirk (2225) – Walter,Mario (2050), remoteschach.de, 2004.

7.bc6 Nc6 8.cd5 Qd5 =+.

7.d4 0-0 8.Nbd2 Nbd7 9.a4 a6 10.Be2 ab5 11.ab5 Ra1 12.Qa1 h6 (12...cb5 13.cd5 ed5 14.Bb5=) 13.0-0 Qc7 14.h3 Rb8 15.Qa2 Qc8 16.Ra1 Ne8 17.b6 (17.Ba3 Ra8 18.Qb2+= (worse 18.Be7 Ra2 19.Ra2 dc4=+)) 17...Nb6=+ 18.c5 Ra8 19.Qb3 Ra1 20.Ba1 Nd7 21.Qa4 (21.Bb2 Qc7=+) 21...Nc7 (21...b6 22.cb6 Nb6 23.Qa7-/+) 22.Nb3=+ Bf6 23.g4 (23.Qb4!?=+) 23...Bc2-/+ 24.Nfd2 Qa8 (24...e5 25.de5 Ne5 26.Qa2 Bb3 27.Qb3-/+) 25.Qa8 Na8 26.f3 b6 27.cb6 Nab6 28.e4 Bg5 29.Kf2 de4 30.fe4 Nf6 31.Bf3 Na4 (31...Bf4 32.Ke2-/+) 32.e5 (32.Kg3 c5 33.dc5 Nc5 34.Nc5 Bd2=+) 32...Nd5-/+ 33.Be4 Nf4?? (better 33...Be3 34.Ke2 Be4 35.Ne4 Kf8=+) 34.Bc2+- Nh3 35.Kg3 Nf4 36.Kf3 (36.Nc4!? Nd5+-) 36...Nd5 37.Ne4 Be7 (37...Nb4 38.Bb1+-) 38.Nbc5 (38.Na5!? Nab6+-) 38...Nc5 39.dc5 Kf8 40.Nd6 1-0. upep (1690) - ferchos (2025), Rated Classical game, lichess.org, 2013.

7.Nd4 Bg6 +=.

7.cd5 ed5 8.Be2 0-0 =.

7.Be2 h6 8.0-0 0-0 9.a4 Bh7 10.Qb3 Nbd7 11.d4 Rc8 12.Nbd2 c5 13.Rac1 Bd6 14.Ne5 Qe7 (14...cd4 15.ed4 Ne4 16.Ndf3 Ne5 17.de5= (17.Ne5? Nd2 18.Qe3 Nf1 19.Bf1 dc4–+)) 15.a5 (15.Nd7 Qd7 16.dc5 Bc5 17.Bf6 gf6 18.cd5 ed5+=) 15...Rc7 (15...cd4 16.ed4 Bb4 17.Bc3 Bc3 18.Qc3 dc4 19.Ndc4=) 16.h3 (16.cd5 ed5 17.Nd7 Qd7 18.dc5 Bc5 19.Bf6 gf6+=) 16...Ne4 (16...cd4 17.ed4 Ne4 18.Ne4 Be4 19.Qe3=) 17.Ndf3 (17.Ne4 Be4 18.f3 Bh7+–) 17...Be5 (17...cd4!? 18.Nd7 Qd7 19.Bd4 Nc5=) 18.de5+= (worse 18.Ne5 Ne5 19.de5 Nd2–/+) 18...dc4 19.Bc4 (19.Rc4 Rd8+–) 19...Bg6 20.Rfd1 (20.Bd3 Rd8+–) 20...b6+= 21.a6 Rd8 22.Rd6?? (better 22.Qa4+=) 22...Nd6–+ 23.ed6 Qd6 24.Nh4 (24.Re1 Be4 25.Rd1 Qe7–+) 24...Be4 25.f4 (25.f3 Bh7 26.f4 Be4–+) 25...Qe7 26.Qc3 f6 (26...Nf6 27.Nf3–+) 27.f5 Bd5 (27...Nf8 28.Rf1–+) 28.e4 (28.Ng6 Qe8–+) 28...Bc4 (28...Be4? 29.Qe3 Kh7 30.Qe4+–) 29.Qc4 Nf8 30.e5 fe5 31.Nf3 (31.Be5 Rcd7 32.Rf1 Rd1–+) 31...Rcd7 32.Be5 Rd1 (32...Qf7!? 33.fe6 Qe6 34.Qa4–+) 33.Rd1 Rd1 34.Kh2 Rd5 35.fe6 (35.Bg3 Rf5 36.Ne5 Qf6–+) 35...Qe6 (better 35...Rd8–+) 36.Bb8–/+ Rd7 37.Qe6 Ne6 38.Ne5 Rd5 (38...Rc7 39.Kg3–/+) 39.Nc6 Kf7 (39...Kh7!? 40.Ba7 Nc7 41.Bb6 Nb5–/+) 40.Na7= Nd4 41.Bc7? (better 41.Nc8 Nb5 42.Nd6 Rd6 43.Bd6=) 41...c4–+ 42.Bb6 c3 (42...Nb5?? 43.Nb5 Rb5 44.a7 Rb6 45.a8Q+–) 43.Bd4 Rd4 44.Nc6?? (44.b6 c2 45.b7–+) 44...c2 45.Nd4 c1Q 46.Nc6 Qf4 47.Kg1 Qa4 48.a7 Ke6 49.Kh1 Kd6 0–1. Pagano,N (1995) – Visser,HJ (2255), 10th Capo d'Orso Open, 2018.

7.a4 0-0

8.Qb3 Nbd7 9.Nd4 Nc5 10.Qc3 (10.Qd1 Bd3–/+) 10...Bb1 (10...Nfe4!? 11.Qc1 Bg4 12.Qc2–+) 11.Rb1 Na4 12.Qb3 Nb2 13.bc6 (13.Qb2!? c5 14.Nf3–/+) 13...Nc4–+ 14.cb7 Rb8 15.Bc4 dc4 16.Qb5?! (16.Qc4 Ne4 17.Qc6 Nc5–+) 16...Ne4 17.0-0 (17.Qc4 Bf6 18.Ke2–+) 17...Nd2 18.Nc6 Qc7 19.Nb8 Rb8 20.Rfd1 (20.Rbc1 Rb7 21.Qe8 Bf8 22.Rfd1–+) 20...c3 (better is 20...Nb1 21.Rd7 Qc5 22.Qb1 Qc6–+) 21.Rbc1 Rb7 (21...a6 22.Qd3 Qb7 23.Qc3–+) 22.Qd3?! (22.Rc3 Qc3 23.Qb7–+) 22...Nb3 23.Rc3 Nc5 24.Qc4 (24.Rdc1 a5–+ (24...Nd3?! 25.Rc7 Rb3 26.Rd1–+)) 24...h5 (24...a5 25.Rdc1–+) 25.Rdc1 Qd6 (25...a5 26.Qe2–+) 26.g3 (26.g4 Qc6 27.Qd4–+) 26...Rb2?? (better is 26...Qc7–+) 27.Qc5+= Qc5 28.Rc5 Bc5 29.Rc5 g6 30.Ra5 Rb7 31.Kg2 Kf8 32.h4 Ke7 33.Kf3 Kd6 34.Ra6 Kc5 35.Ra2 Kb6 36.Rb2 Kc7 37.Rc2 (37.Ra2 Kc6+=) 37...Kb8–/+ 38.Ra2 Rb5 39.g4 Kb7 40.gh5 Rh5 41.Rb2 (41.Kg4 a5–/+) 41...Kc6 42.Rc2 Rc5 43.Rb2 (43.Ra2 a5–+) 43...a5–+ 44.Rb8 a4 45.Ra8? (better is 45.Ke2–+) 45...Kb5 46.Rb8 (46.Ke4 Rd5 47.Rb8 Ka5 48.Rb7–+) 46...Kc4 47.Ra8 (47.Ke4 a3 48.Ra8 Kb3–+) 47...Kb4 48.Rb8 (48.Ke2 Ra5 49.Rb8 Rb5 50.Ra8–+) 48...Rb5 49.Rd8 (49.Ra8 a3–+) 49...a3 50.Rd4 Kc3 0–1. Hanscombe,Richard – Jaszkiwskyj,Peter (1985), The Four Nations Chess League Division, 2012.

8.Nc3 Nbd7 9.Nd4 Bg6 (better is 9...cb5!? 10.Nf5 ef5 11.ab5 dc4=) 10.bc6+/– e5 (better is 10...Qb6!? 11.cd7 Qb2 12.cd5 ed5+/–) 11.cb7+– (11.cd7?! ed4 12.Nd5 Nd5 13.cd5 Qd7+=) 11...ed4 12.ba8Q (worse is 12.ba8B dc3 13.Bc3 Qa8 14.cd5 Qd5–+; 12.ba8R?! Qa8 13.Nd5 Nd5 14.cd5 Bf6+–) 12...Qa8 13.Nd5 Nd5 14.cd5 d3 (14...Bf6 15.f3 (15.Bd4 Bd4 16.Rc1 Qd5–/+) 15...Qd5 16.e4+–) 15.h4 (15.Qf3 Qb7 16.Bc3 Bf6 17.Bf6 Nf6+–) 15...h5 16.Ba3 (16.Qf3 Qb8 17.Bd4 Bf6+/–) 16...Ba3+/– 17.Ra3 Qd5 18.Qb3 (better is 18.Rc3+/–) 18...Rb8= 19.Qd1 (19.Qd5?? Rb1) 19...Ne5 (19...Rf8!?=) 20.f3 Ng4? (better is 20...Bf5!?+/–) 21.fg4+– Qd6 22.Kf2 (better is 22.Qa1 Qg3 23.Kd1+–) 22...Qa3+= 23.gh5 Bf5 24.g4 (24.Qf3 Be6 25.Kg1 Rc8+=) 24...Be4 (24...Bd7!? 25.Qf3 Rb2 26.Qa8 Qf8 27.Qf8 Kf8=) 25.Bg2+/– Bg2 26.Kg2 Rb4 27.Rf1 Qa4 (27...Ra4 28.Qf3 Qe7 29.Qf5+/–) 28.Qa4+– Ra4 29.Kf3 a5 (29...f5 30.gf5 Rh4 31.e4 Rh5 32.Rb1+–) 30.e4+– Kf8 (30...Rb4 31.Rc1+–) 31.Ke3 Ra3 (31...Kg8 32.g5 (32.Kd3?! Ra3 33.Kc4 Rg3+–) 32...Rc4 33.Rf5+–) 32.g5 Ke7 (32...Rb3 33.Rf5 a4+–) 33.g6 f6 (33...fg6 34.hg6 Ke6+–) 34.e5! Ra4 (34...fe5 35.Rf7 Deflection) 35.h6 Rg4 36.ef6 gf6 37.h7 1–0. Bulcourf,C (1980) – Laurnagaray,Santiago, VI Copa Latina, 2015.

8.Nc3 Nbd7 9.cd5 cd5 10.Be2 Rc8 11.0-0 e5 12.h3 (12.a5 Qc7=) 12...Bb4 13.Na2 (13.Qb3 Qa5=) 13...Bd6=+ 14.Rc1 Re8 15.Nh4 Be6 16.Nc3 (16.Rc8 Qc8 17.Nf3 Qc7=+) 16...Qb6 (16...d4 17.ed4 ed4 18.Nb1 Rc1 19.Qc1–/+) 17.Nb1 (17.Nf3 d4 18.ed4 ed4=+) 17...a6 18.Nf3 Bf5 19.Rc8 Rc8 20.Qb3 (20.d4 e4 21.Ne5 ab5 22.ab5 Be6=+) 20...Be6 (20...ab5!? 21.Qb5 Qb5 22.Bb5 Rc2=+) 21.d4= e4 22.Nfd2 (22.Ng5 Bb8 23.Ne6 fe6=) 22...a5=+ 23.Rc1 Rc1 24.Bc1 Bb8 25.Qc2 Qd6 26.Ba3?? (better 26.Nf1 Qc7 27.Qc7 Bc7 28.Ba3=) 26…Qh2 (26...Qh2 27.Kf1 Qh1) 0–1. Abdullaevich (1825) – Xonus (1755), lichess.org, 2020.

8.Nc3 h6 9.Be2 Bh7 10.d4 Nbd7 11.0-0 Ne4 12.Ne4 Be4 13.Qb3 dc4 14.Bc4 Bd5 15.Rfc1 Nb6 16.Bd5 cd5 (worse is 16...Qd5 17.Qd3 cb5 18.e4+=) 17.Ne5 Bd6 18.a5 Nd7 19.Nd7 Qd7 20.Ba3 Rfc8 21.Bd6 Qd6 22.g3 ½–½. Schiefelbusch,D (2105) – Winkel,Peter (1825), 43rd Sparkassen Open, 2015.

8.Be2 a6 9.Nc3 (9.cd5 cd5 10.Nc3 Nbd7=) 9...Nbd7 (9...dc4 10.Bc4 Qc7 11.Be2=) 10.d4 (10.bc6 bc6 11.Nd4 Qc7 12.Nf5 ef5=) 10...Bb4 (10...dc4!? 11.Bc4 ab5 12.ab5 Ra1 13.Qa1 c5=+) 11.0-0= Bc3 (11...ab5 12.ab5 Ra1 13.Qa1 dc4 14.bc6 bc6 15.Bc4=) 12.Bc3 Ne4 13.Bb2 (13.Qb3 Qc7 14.cd5 ab5 15.ab5 cd5+=) 13...h6 (13...ab5 14.ab5 Qc7 15.Qb3=) 14.Qb3 Bg4 (14...dc4 15.Qc4 Qc7 16.bc6 bc6 17.Rfc1+=) 15.Rfd1 (15.Qc2 ab5 16.ab5 Qe7=) 15...Qa5 (15...ab5 16.ab5 Ra1 17.Ba1=) 16.h3 (16.cd5 cd5 17.h3 Bf5+=) 16...Bf3= 17.gf3 Nd2 18.Qc2 Nc4 19.Bc4 dc4 20.bc6 bc6 21.Qc4 Qd5 (21...Rab8 22.Ba3 Rfc8 23.Rdb1=) 22.Qe2 (22.Qd5 cd5 23.Ba3 Rfc8=) 22...Rab8 (22...Rfb8 23.e4 Qh5 24.Kg2=+) 23.e4 (23.Ba3 Rfc8=) 23...Qg5 24.Kh2 Qf4 (24...c5 25.Rab1=) 25.Kh1 (25.Kg2 c5=) 25...Rb3 (25...Rb2 26.Qb2 Qf3 27.Kg1=+) 26.Ra3= Rfb8 27.Bc1 Qh4 28.Kg2 (28.Kh2 R3b4=) 28...Ra3 29.Ba3 Qg5 30.Kh1 (30.Kh2 Rb3 31.Bd6 e5=+) 30...Qh5 (30...Rb3 31.Bd6=+) 31.Kg2= Qg5 32.Kh1 Qh5 ½–½. Lorenz,Alexander (2020) – Schreibmaier,Rene (1950), Leibnitz AUT, Steirische Landesliga, 2016.

8.Be2 dc4 9.Bc4 a6 10.Nc3=+.

8.Be2 Nbd7 9.d4 Nb6 10.c5= Nbd7 (10...Nc4 11.Bc3=) 11.0-0 a6 12.Nbd2 ab5 13.ab5 Qc7 (13...Ra1 14.Qa1 cb5 15.Bb5+=) 14.b6 Qc8 15.Ra8 Qa8 16.Qb3 Ne4 17.Ra1 Qb8 18.Ne4 Be4 19.Nd2 Bg6 20.Ra7 f6 (20...Re8!?+–) 21.Ba6! 1–0. GuestSKYR – GuestFQKJ, freechess.org, 2017.

8.Be2 Re8 9.cd5= ed5 10.0-0 Nbd7 (10...c5 11.a5=) 11.Nd4 Bb1 12.Qb1 c5 13.Nf5 Bf8 14.Bf3 Rc8 15.h3 b6 16.d3 Rc7 Black prepares c4 (16...g6 17.Nh4=) 17.Qa2 Ne5 Black plans c4 18.Be2 Qc8 19.Ng3 c4 20.dc4 Nc4? (20...dc4 21.Bd4=) 21.Bd4 (better 21.Bf6!? gf6 22.Rad1+–) 21...Ne5 (better 21...Bd6=) 22.Nh5?? (22.Qb2 Rc2 23.Qb1 Rc7+=) 22...Nh5 (better 22...Rc2 23.Qb3 Re2–/+) 23.Bh5= Rd8?? (23...Qf5 24.Be2+=) 24.Qb2 (better 24.Be5 Bd6 25.Bg4+– (25.Qd5?! Be5 26.Qe5 Rc5+–)) 24...Nc4= 25.Qe2 Nd6 (25...Bc5 26.Rfd1=) 26.Qf3 Qf5 (26...Qe6 27.Rfc1 Nc4 28.Bg4+=) 27.Bg4 (27.a5 Rb8 28.ab6 ab6+=) 27...Qf3 28.Bf3 (28.gf3? f5–+) 28...Ne4 29.Rfc1 Rdc8 30.Be4?? (better 30.Rc7 Rc7 31.Bd1+=) 30…Rc1–+ (30...Rc1 31.Kh2 de4–+; 30...de4 31.Rc7 Rc7 32.a5 ba5 33.Ra5+=) 0–1. Abdullaevich (1915) – Viceroy88 (1890), lichess.org, 2020.

7.Nc3 0-0

8.a4 a6 9.Be2 =+.

8.a4 dc4!? 9.Bc4 cb5 10.ab5 Bd6 =.

8.a4 Bd6 9.Be2=+.

8.a4 Nbd7 9.bc6 bc6 10.Nd4 Rc8 (10...Bc5 11.Nf5 (11.Nc6? Qb6–+) 11...ef5 12.cd5 cd5 13.Qf3+=) 11.Nf5 ef5 12.Bd3 (12.cd5!? cd5 13.Rb1=) 12...Ne5+= 13.Bf5 (13.Qe2 Rb8 14.Nd1 Qd6+=) 13...Rb8 14.Ra2 (14.Rb1 Nc4 15.Ba1 Qa5=) 14...Nc4 15.Ba1 g6 (15...Qa5 16.Qc2+=) 16.Bd3= Ne5 (16...Rb4 17.Bc4 Rc4 18.0-0=) 17.Bb1 +=. Ziese,Gerhard – Kross, corr SOK–89–48, 1989.

8.a4 Nbd7 9.cd5 cd5=+ 10.d4 (10.Be2!?=+) 10...Bb4 11.Bd3 (11.Nd2 Qa5 12.Na2 Bd6=+) 11...Ne4 (better is 11...Qa5 12.Rc1 Rfc8–+) 12.Qc2? (12.Be4!? de4 13.Nd2–/+) 12...Rc8 (better is 12...Nc3 13.Bc3 Rc8 14.Bb4 Rc2 15.Bc2 Bc2–+) 13.Be4–/+ Be4 14.Qb3 Bd6 (14...Qa5 15.Rc1–+) 15.0-0? (better is 15.Ne4!? de4 16.Nd2=+) 15...Bf3–/+ 16.gf3 Qg5 17.Kh1 Qh5 18.f4 Rc4 19.Ne2?? (better is 19.Qd1 Qh4 20.Ba3 Bf4 21.ef4 Rc3 22.Bf8–+) 19...Qe2–+ 20.Rac1 (20.Ba3 Ba3 21.Qa3–+) 20...Nf6 (better is 20...Rb4 21.Qc2 Rb2 22.Qe2 Re2 23.a5–+) 21.Rg1 (21.Kg2 Rb4 22.Qc2 Rb2 23.Qe2 Re2–+) 21...Rb4 (better is 21...Ne4!? 22.Rce1 Qf3 23.Rg2 Nf2 24.Kg1 Nh3 25.Kh1–+) 22.Qc2 Rb2 23.Qe2 Re2 24.Rg2 (24.Kg2 Ne4 25.Rgf1 Ra2–+) 24...Ne4 (24...Ra2 25.f3 Ra4 26.Rcg1–+) 25.Rcg1 (25.h3 Rf2 26.Rf2 Nf2 27.Kg2 Nd3–+) 25…Nf2 (26.Rf2 Rf2–+) 0–1. gtate (1655) – mrmojorisin, net–chess.com, 2001.

8.a4 Nbd7 9.cd5 ed5 10.bc6 bc6 11.Nd4 +/–.

8.a4 Bg4 9.cd5 cd5 (9...Nd5 10.Be2=) 10.Be2= Nbd7 11.0-0 Rc8 12.Nd4 (12.a5 e5=) 12...Be2 13.Nce2 (13.Qe2 e5 14.Nf5 Re8=) 13...Nc5 (13...e5 14.Nf5 Re8 15.d4=) 14.d3= Nfd7 (14...a6 15.Rc1=) 15.a5 Bf6 (15...Qc7 16.f4=) 16.Ra3 (16.f4 Qc7=) 16...Qe7 (16...e5 17.Nf5=) 17.Qd2 (17.Nf4 a6=) 17...e5 18.Nf5 Qe6 19.Nfg3 Be7 (19...Rfd8 20.d4 Ne4 21.Ne4 de4 22.Rd1=+) 20.f4 f6 21.d4 ed4 (21...Ne4 22.Ne4 de4 23.d5=) 22.Qd4 (< 22.Bd4 Ne4 23.Ne4 Ba3–/+ (23...de4?! 24.Qa2 Qf7 25.Qf7 Kf7 26.Rb3=; < 23...Qe4 24.Nc3 Rc3 25.Qc3+=)) 22...Rfd8 23.Rc3 a6 24.Rfc1 (24.Rd1 ab5 25.f5 Qa6=) 24...ab5 25.Ba3 Rc6 (better is 25...Qc6!?=) 26.Bc5+/– (< 26.Rc5 Nc5 27.Bc5 Rdc8–/+) 26...Nc5 27.Rc5 Bc5 28.Rc5 Rc5 29.Qc5 b4 30.Kf2 Qd6 31.Qb5 g6 (31...b6 32.ab6 (32.Qb6?! Qb6 33.ab6 Rb8=) 32...Rb8 33.Nf5 Qb6 34.Qd5 Kh8 35.Ned4+–) 32.Nd4 (32.f5 Rd7+–) 32...Rd7 (32...Ra8 33.f5+/–) 33.Nge2 (33.f5 Re7+–) 33...Re7 (33...Qe7 34.Nc2+–) 34.Nc1 Qc7 (34...b6 35.ab6 Rb7 36.Qe8 Qf8 37.Qc6+–) 35.Na2 (35.Qd5 Kh8+–) 35...Qc4 36.Nb4 Qb5 37.Nb5 Rd7 (37...Re6 38.g4+–) 38.Nd3 (38...Rd8 39.Nc5+–) 1–0. Mehlhorn,U – Wisskirchen,W, H–2076–D, 2000.

8.a4 h6 9.Be2 dc4 10.Bc4 cb5 11.ab5 =.

8.a4 h6 9.Be2 c5 10.cd5 ed5 11.d4 c4 12.0-0 Re8 13.Ne5 Bd6 14.f4 (14.Bf3 Bc7=) 14...Bb4=+ 15.Bh5 Re7 16.Bf3 Be6 (16...a6!?=+) 17.Qc2= Qc8 18.e4 de4 19.Ne4 Nbd7 20.Ng3 Nb6 21.f5 Bd7 (21...Bd5 22.a5 c3 23.Ba3 (23.ab6 cb2 24.Qc8 Rc8=+) 23...Ba3 24.Ra3+/–) 22.Be2 (22.Rac1!?+=) 22...c3 23.Bc1 (< 23.Nd7 Qd7 (< 23...Rd7 24.Bc1=+; 23...Nbd7?! 24.Bc1=; 23...Nfd7?! 24.Bc1=) 24.Bc1 Qd4 25.Kh1 Rae8–/+) 23...Nbd5 24.Ne4 Ne4 25.Qe4 Nf6 26.Qd3 a6 27.Qg3 Kh7 (27...Ne4 28.Qf3 Nf6 29.Rb1=) 28.ba6+= (28.Nd7 Qd7 (< 28...Nd7 29.Bh6 Qh8 30.Bd3+–; < 28...Rd7 29.ba6 ba6 30.Bf3=) 29.Be3 Rae8 30.Bh6 Qd4 31.Kh1 A) < 31...Kh6 32.Rf4 Qf4 33.Qf4 Kh7 34.Qb4 (34.ba6 Re2 35.Qh4 Kg8 36.ab7 Bd6–/+) 34...Re2 35.Qc3+/–; B) 31...gh6–+) 28...ba6 (28...Bf5 29.ab7 Rb7 30.Rf5 Qf5 31.Bd3+–) 29.Qh4 (< 29.Nd7 Qd7 (< 29...Nd7 30.Bh6 f6 31.Be3+–) 30.Qd3 Rae8–/+) 29...Nd5 (better is 29...Bc5!? 30.Kh1 Rb8+= (30...Bf5? 31.Bh6 Bb4 32.Bg5 Kg8 33.Bf3+–)) 30.f6!+– (30.Nd7?! Qd7 (< 30...Rd7 31.f6+/–) 31.Bd3 Kg8=) 30...Nf6 (30...gf6 31.Bg5) 31.Bh6! Re6 (31...gh6 32.Rf6) 32.Bc4 gh6 33.Be6 Be6 34.Rf6 (34.Qf6?! Ra7+–) 34...Bf8 35.Nf7 (35...c2 36.Qe4 Kg8 37.Qg6 (37.Re6 c1Q 38.Rc1 Qc1 39.Kf2 Qb2 40.Kf3 Qc3 41.Kg4 h5 42.Kh5 Qc4+–; 37.Qe6?! Qe6 38.Re6 Kf7+–) 37...Bg7 38.Rc1+– (38.Re6 c1Q 39.Rc1 Qc1 40.Kf2 Qf4 41.Ke2 Qf7–/+; 38.Nh6?! Kh8 39.Rc1 Bf6 40.Qf6 Kh7+–)) 1–0. Seack,Ingo – Sternik,Ryszard, corr SOK–92–88, 1992.

8.a4 h6 9.Be2 Bh7 10.0-0 Nbd7 11.d4 Qb8 (11...cb5 12.ab5 dc4 13.Bc4=) 12.Qb3 (12.bc6 bc6 13.Ba3 Bb4 14.Bb4 Qb4=) 12...Rc8 (12...cb5 13.Qb5 dc4 14.Bc4+=) 13.Rfc1 a5 (13...cb5 14.Qb5 dc4 15.Bc4+=) 14.Ba3 Ba3 (14...dc4 15.Bc4 Ba3 16.Ra3+=) 15.Qa3 (15.Ra3 dc4 16.Bc4 c5+=) 15...dc4= 16.Bc4 c5 17.d5 e5 18.Nd2 e4 (18...Qd6 19.e4+=) 19.Qa2 (19.Qb3 Ng4 20.Nf1 Qd6+=) 19...Ng4 20.Nf1 (20.Nde4 Qh2 21.Kf1 Be4 22.Ne4 Qh1 23.Ke2 Qg2–+) 20...Qd6 21.Be2 (21.Ng3 Nb6=) 21...Nge5 22.Nd2 Nf6 23.Qc2 Pawn e4, live or die! (23.Rd1 Neg4 24.g3 Qe5+=) 23...c4 24.Nde4 (24.Nce4 Ne4 25.Ne4 Qd5=) 24...Ne4 25.Ne4 Qd5 26.Nc3 Qc5 (worse is 26...Bc2 27.Nd5 Bd3 28.Ne7 Kf8 29.Nc8 Rc8 30.Kf1+/–) 27.e4 Rd8 (27...Rf8 28.Rd1=) 28.Rd1 Bg6 29.Rac1 (29.Rab1 Rac8=) 29...Rac8 30.h4 (30.Rd8 Rd8 31.Rd1 Rd4=) 30...f6 (30...Rd1 31.Qd1 Qe7 32.h5+=) 31.Nd5 Rd5 32.Rd5 Qd5 33.ed5 Bc2 34.Rc2 g5 35.g3 (35.d6 Kf7 (worse is 35...gh4 36.f4 Ng6 37.d7+/–) 36.d7 Rd8=) 35...c3 (35...g4 36.d6 Kf8 37.d7=) 36.f4 Nf7 (36...gf4 37.gf4 Ng6 38.d6 Nf4 39.Bg4+=) 37.Kf2 (37.hg5 fg5 38.fg5 Ng5+=) 37...Kf8 (37...gh4!? 38.gh4 Nd6=) 38.Ke3+= Ke7 (better is 38...gh4!? 39.gh4 Nd6=) 39.Kd4+– Nd6 (39...gh4 40.gh4 Nd6 41.Bd3+/– (41.Rc3?! Nf5 42.Kd3 Rc3 43.Kc3 Nh4=)) 40.Bd3 (40.hg5 hg5 41.Bd3 gf4 42.gf4 Rh8+–) 40...b6 (40...gh4 41.gh4 Rg8 42.Rc3+– (42.Kc3?! Rg4+=)) 41.fg5 fg5 42.Re2 (42.Rc3 Rc3 43.Kc3 Nb7+–) 42...Kd7 (42...Kd8 43.hg5 hg5 44.Rc2+–) 43.hg5 hg5 44.Rc2 Ke7 (44...g4 45.Rc3 Rc3 46.Kc3+–) 45.Rc3 Rc3 46.Kc3 Nb7 47.Kd4 (47.Be4 Nc5 48.Bc2 Kd6+=) 47...Nc5 48.Bc2 Kd6 49.g4 Nd7 50.Ke4 Nf6 51.Kf5 Nd5 52.Kg5 Ne3 53.Bb3 Kc5 (53...Ke5 54.Ba2+–) 54.Kf4 Ng2 55.Kf3 (55.Kg3 Ne3 56.g5 Kd4+–) 55...Nh4 56.Ke4 Kb4 (56...Kd6 57.Bf7 Ke7 58.Kd5+–) 57.Bd1 Kc3 (57...Kc5 58.Ke5+–) 58.g5 Kd2 59.Bh5 Kc3 60.g6 Ng6 61.Bg6 Kb4 62.Kd5 1–0. Katalymov,Boris N – Muratov,Vladimir A, Kazachstan, 1969.

8.Rc1 a6 9.h3 +=.

8.Rc1 dc4 9.Bc4 a6 10.a4 +=.

8.Rc1 dc4 9.Bc4 a6 10.ba6 Na6 =+.

8.Rc1 dc4 9.Bc4 cb5 10.Nb5= Nc6 11.0-0 Bd3 12.Bd3 Qd3 13.Qb3 Rfd8 14.Rc3 (14.Qd3 Rd3 15.Nbd4 Ne4 16.Nc6 bc6 17.Rc6 Nd2=) 14...Qd5 15.Nc7 Qb3 16.Rb3 (worse is 16.ab3 Rac8 17.Nb5 Ne4–/+) 16...Rab8 17.Rb1 Na5 (17...Ne4 18.Bd4+=) 18.Bf6 Bf6 (18...Nb3 19.Be7 Nd2 20.Nd2 Rd2 21.Nb5+=) 19.Rb5 (19.Ra3 Nc6=) 19...b6 20.d4 (20.Rc1!?=) 20...Rbc8+= 21.Na6 Rc2 22.Nb4 Rc3 23.Nd2 Rdc8 24.g3 Be7 25.Ne4 (25.Kg2!?+=) 25...Rc1–/+ 26.Rc1 Rc1 27.Kg2 f5 (27...Nc4!? 28.a4 f5–/+) 28.Nd2 Bb4 29.Rb4 Rc2 30.Nf3 h6 (30...Nc4 31.Kf1–/+) 31.a4 (31.Ra4 Nc4 32.Ne1 Ne3 33.Kg1 Rc4 34.Ra7 Ng4=) 31...Rc4 (31...Nc4 32.Kg1+=) 32.Rb5 Ra4 33.d5 ed5 34.Rd5 Rc4 (34...Nc4 35.Rd4+=) 35.Rf5 (35.Nd4 Rc7=) 35...Rc7 (35...Nc6 36.Rb5+=) 36.Ne5 (36.Nd4 Nc6 37.Ne6 Rc8=) 36...Nc4 (36...Rc5 37.f4–/+) 37.Ng6 (37.Nc4 Rc4 38.Rd5 a5=) 37...Kh7 (37...a5!?+=) 38.Nf8= Kg8 39.Ne6 (39.Ng6 a5+=) 39...Rc8+= 40.h4 (40.Rd5 Kf7 41.Nd4 Ke7+=) 40...a5 41.Nf4? (better is 41.Rb5!?+=) 41...a4–+ 42.Nd5 Ra8 43.Nc3 a3 44.Na2 Rd8 45.e4?? (better is 45.Rf4 b5 46.Rd4 Rd4 47.ed4–+) 45...Rd2–+ 46.Rb5 (46.Rf4 Ra2 47.e5 b5–+) 46...Ra2 47.e5 (47.Rb4 Rc2 48.Ra4–+) 47...Re2 (47...Re2 48.Rb1 a2–+) 0–1. Oliveira,A Pereira – Azevedo,E R Ramos (1985), Final do Baiano Absoluto, 2012.

8.Nd4 Be4 =+.

8.cd5 cd5 9.Be2 Nbd7 =.

8.Be2 cb5 9.cb5= Ne4 10.0-0 Nd7 11.Rc1 Ndc5 (11...Nc3 12.Bc3 Ba3 13.Ra1=+) 12.d3 Nc3 13.Bc3 Rc8 14.h3 (14.Nd4 Bg6=) 14...Re8 (14...Bd6 15.Bd4=) 15.Qd2 Bf6 16.Bf6 (16.Be5=) 16...gf6 (16...Qf6!? 17.d4 Ne4=) 17.Rfd1 (17.Nd4 Bg6+=) 17...Qb6 (17...e5 18.d4 Ne4 19.Qb4+=) 18.d4 (18.Nd4 Bg6 19.a3 e5=) 18...Ne4 19.Qb4 Rc7 20.Qa3 (20.Rc7 Qc7 21.Qa4 Nc3–+) 20...Rec8 21.Rc7 Rc7 22.Rc1 a5 (22...Qd6 23.Qb2+=) 23.Bf1 Rc1+= 24.Qc1 Qd8 25.Ne1 Nd6 26.Qc5 b6 27.Qc6+= Kf8 28.Nd3 Bd3 29.Bd3+/– f5 30.f3 Nc8 31.Kf2 Ke7 32.g4 fg4+= 33.hg4 h6 34.Qb7 Qd7 35.Qb8 Qd8 36.Qf4 Qd6 37.Qh6 Qa3 38.Be2 Qa2= 39.g5 Nd6 40.Qf6 Kd7 41.g6 fg6 42.Qg7 Kd8 43.Qg6 Nb5 44.Qe6 Nc3? 45.Qd6+– 1–0. Schiefelbusch,Dirk – Mueller,Martin, Ruhrgebiet VK1–chT, 1995.

8.Be2 dc4 9.Bc4 Bd3 10.Qa4 =+.

8.Be2 dc4 9.Bc4 Bd3 10.Bd3 Qd3 11.Ne5 =.

8.Be2 dc4 9.Bc4 Bd3 10.Ne5?? Bc4–+ 11.Nc4 cb5 12.Nb5 Qd7?? (better is 12...Qd5!? 13.Qb3 Qg2–+) 13.Nd4 (better is 13.Qb3!?=) 13...Qd5–/+ 14.Qf3?? (better is 14.Rc1 b5 15.Na5 Qa2 16.Nac6 Nc6 17.Nc6 Qb2 18.Ne7 Kh8 19.Nc6–/+) 14...Qc4–+ 15.Qb7 Nbd7 16.Nc6 Bc5 17.Rc1 Qd5 18.Bd4 Kh8 (18...Qg2?? 19.Ne7 Be7 20.Qg2+–) 19.0-0 (19.Bf6 Nf6 20.0-0 Rac8–+) 19...Bd4 (19...Rab8 20.Qb8 Nb8 21.Bc5–+) 20.ed4 Qa2 21.Ra1 Qd2 22.Ra7 Ra7 23.Qa7 Qf4 24.h3 Qd6 25.Qa4 h6 26.Re1 Rc8 27.Ne5 Ne5 28.de5 Qd2 29.Rd1 Rc1 30.Rc1 Qc1 31.Kh2 Qc7 32.f4 Nd5 33.Qa8 Kh7 34.Qa4 f6 (better is 34...Qc5 35.Qe4 Kg8 36.g3–+) 35.Qe4 (35.ef6 Nf6 (worse is 35...gf6 36.Qe4 Kg7 37.g3–+) 36.Qd4 Kg6–+) 35...g6 (35...f5 36.Qf3 Qc2 37.Qf1–+) 36.ef6 (36.g3–+) 36...Qf4 37.Qf4 Nf4 38.Kg3 (38.g3 g5 39.gf4 gf4–+) 38...g5 39.h4 Kg6 40.hg5 (40.f7 Kf7 41.Kg4–+) 40...hg5 41.Kf3 Kf6 (41...Ng2!? 42.f7 Kf7 43.Kg2–+) 42.Ke4 Ng2 0–1. Consilio,Todd J (1655) – Johnson,Daniel, Colonie op, 2003.

7.cd5 cd5

8.Nc3 Nbd7 9.Rc1 0-0 10.Be2 Rc8 (10...e5 11.0-0=) 11.0-0 (11.Nh4 Bg4=) 11...e5 12.d3 (12.d4 e4 13.Ne5 Bd6 14.Nd7 Qd7=) 12...Re8 (12...Qb6 13.d4 e4 14.Nd2=) 13.Nd5 (13.Qb3 Be6 14.d4 Bd6=) 13...Nd5 14.Rc8 Qc8 15.e4 Qc5 16.a4 Qb4 17.Ba1 N5b6 (17...Bd6 18.ef5 N7b6 19.Ng5=) ½–½. Zbroja,Tadeusz – Preuss,Guenter, corr 3GMM–F, 2000.

8.Be2 0-0=.

8.Be2 Nbd7 9.0-0 0-0 10.Nc3 Rc8 11.Nh4 Bg6 12.Ng6 hg6 13.Rc1 Nc5 (13...Bd6 14.Qa4=) 14.d4+= Nce4 15.Ne4 Ne4 16.Rc8 Qc8 17.Qa4 Nd6 (17...Qb8 18.Rc1+=) 18.Rc1 (18.Qa7?? Qc2 19.Bf3 Qb2–+) 18...Qb8 19.g3 Rc8 20.Rc8 Qc8 21.Ba3 (worse 21.Qa7 Qc2 22.Qb8 Kh7=+) 21...Qc3 (21...Qb8!?+=) 22.Bd6+– Bd6 23.Qa7 Qe1?? (better 23...Qc2 24.Bf1 Qc7+–) 24.Bf1+– 1–0. DEFFM – GuestQTHT, freechess.org, 2018.

7.Be2 0-0

8.0-0 cb5 9.cd5 Nd5 10.Bb5 Qb6 11.a4 a6 12.Bd4 Qc7 13.Be2 Nc6 14.Nc3 Nd4 15.Nd4 Nc3 16.dc3 Be4 (16...Qc3?! 17.Rc1 Qa5 18.Nf5 Qf5 19.Rc7=) 17.Bf3 Bf3 18.Qf3 Rab8 (worse 18...Qc3 19.Qb7 Ba3 20.Rfd1+=) 19.Rfc1 Qc4 20.Rab1 The backward pawn on b7 becomes a target 20...Ba3 21.Rc2 (better 21.Rf1!?=) 21...e5-/+ 22.Nf5? (22.Nb3-/+) 22...g6?? (better 22...Qd3 23.Rcc1 Bc1 24.Rc1 Rfd8-+) 23.Nh6= Kg7 24.Ng4 f6 (24...Qa4?? 25.Qf6 Kg8 26.Nh6) 25.Rb7?? (better 25.e4=) 25...Rb7-+ 26.Qb7 Rf7 27.Qf3 h5 28.h3 hg4 29.hg4 Qa4 30.Ra2 Qb3 31.Qe2 a5 32.g5 fg5 33.Rd2 Qc3 34.Rd3 Qc4 35.Qd1 Bb4 36.Rd5 Bc3 37.Rd6 Qa2 38.f3 Qa1 39.Qa1 Ba1 40.Ra6 Bc3 41.Kf2 Rb7 42.Ke2 Rd7 43.g3 Rd2 44.Kf1 Ra2 45.f4 (45.Rc6 Bd2 46.Re6 Kf7 47.Re5 a4-+) 45...gf4 46.gf4 ef4 47.Ra7 (47.ef4 a4 48.Kg1 Bb4 49.Ra7 Kf6-+) 47...Kf6 48.ef4 Rf2! 49.Kg1 (49.Kf2 Bd4 Double attack) 49...Rf4 50.Ra6 Kf5 51.Kg2 Kg4 52.Rg6 Kf5 53.Rg8 (53.Rc6 Be5 54.Rc5 a4-+) 53...a4 (53...Rg4 54.Rg4 Kg4 55.Kf2 Bh8 56.Kf1 a4 57.Kf2 a3 58.Ke3 a2 59.Ke4 a1Q 60.Kd5 Qe5 61.Kc6 Qd4 62.Kb5 Qd7 63.Kc5 Qc8 64.Kb6 Bd4 65.Kb5 Qc5 66.Ka4 Qc4 67.Ka5 Qb3 68.Ka6 Qb6) 54.Rf8 (54.Ra8 Bb2-+) 54...Ke4 55.Re8 Kd3 56.Rd8 Rd4 57.Ra8 Bb2 58.Kf3 a3 59.Ra5 Kc2 60.Rd5 Rd3 (60...Rd5 61.Kf4 a2 62.Ke4 Re5 63.Kf3 a1Q 64.Kg2 Rg5 65.Kf2 Kd3 66.Kf3 Qf1) 61.Ke4 (61.Ke4 Rd5 62.Kd5 a2 63.Kc5 a1Q 64.Kb6 Qa4 65.Kc7 Be5 66.Kb6 Qc4 67.Kb7 Qb5 68.Kc8 Qc6 69.Kd8 Bf6; 61.Kf4 Rd5 62.Ke4 Re5 63.Kf3 a2 64.Kg4 a1Q 65.Kf4 Qf1 66.Kg4 Re4 67.Kg5 Qf7 68.Kh6 Bc1). carlos78 (2260) - dpruess (2280), Rated Blitz game, lichess.org, 2015.

8.a4 dc4 9.Bc4 cb5 10.ab5 =+.

8.a4 h6 9.0-0 (9.Nd4 Be4 10.0-0 dc4 11.Bc4 c5=) 9...Bh7 (9...dc4 10.Bc4 Bd3 11.Bd3 Qd3 12.Ne5=) 10.d4 (10.d3 dc4 11.dc4 cb5 12.ab5 a6=) 10...Nbd7 (10...dc4 11.Bc4 cb5 12.ab5=) 11.c5+= Ne4 12.Nc3 Bf6 13.Bd3 (13.bc6 bc6 14.Ra3 Rb8=) 13...Nc3 (13...Ndc5 14.dc5 Bc3 15.Be4 de4 16.Bc3 Qd1 17.Rfd1 ef3 18.bc6 bc6 19.gf3+=) 14.Bh7 Kh7 15.Bc3 Qc7 16.Qc2 Kg8 17.Rfc1 e5 18.de5 Ne5 ½–½. Franke,Roland – Harzer,Paul, Bahn–chV Bad Laasphe, 1994.

8.Nh4 Bb1 9.Rb1 dc4 10.Bc4 a6 11.bc6 b5 = (< 11...bc6 12.Nf3+=).

8.0-0 dc4

9.Na3 c3 10.dc3 a6 11.Qd8 Rd8 12.bc6 Nc6 +=.

9.Bc4 cb5 10.Bb5 a6 11.Be2 Bd3 (11...Nc6 12.d3=) 12.Bd3 (12.Ne5 Be2 13.Qe2 Nbd7=) 12...Qd3 13.Ne5 (13.Qb3 Qb3 14.ab3 Nbd7=) 13...Qb5 (13...Qd5 14.d3=) 14.Bd4 Nbd7 (14...Nc6 15.Nc3 Qa5 16.Nc6 bc6 17.Rb1=) 15.a4 (15.Nc3 Qa5 16.f4 Ne5 17.fe5 Nd7=) 15...Qa5 16.Nd7 Nd7 17.Qf3 Qc7 (17...b6 18.Rd1+=) 18.Nc3 Rfc8 (18...Bd6 19.Rfb1 b6 20.Qh5=) 19.a5 (19.Rac1 Qc6=) 19...b5 ½–½. Taus,Martin (2125) – Zabystrzan,Pavel (2315), Orlova Open Orlova CZE, 2011.

9.Bc4 cb5 10.Bb5 Qb6 11.Qb3 Na6 (11...Nbd7 12.d4=) 12.Bd4 (12.Be2 Qb3 13.ab3 Nc5 14.Bf6 Bf6=) 12...Nc5=+ 13.Bc5 Qc5 14.Nc3 (14.d4 Qd6=+) 14...Rac8 15.Be2 Ne4 16.Qb7 Nc3 (16...Nd2 17.Nd2 Rc7 18.Nde4 Rb7 19.Nc5 Bc5 20.Rfd1=+) 17.dc3= Rc7 18.Qa6 Qc3 19.Nd4 Qb2 (19...Qc5 20.Nf5 Qf5 21.Rac1=) 20.Nf5 ef5 21.Rab1 Qe5 22.Rb5 (22.Rfc1 Bd6 23.g3 Bc5=) 22...Rc5 (22...Qe6 23.Qa4=) 23.g3 (23.Rb7 Bd6 24.g3 Ra5+=) 23...Rb5 24.Qb5 Qb5 25.Bb5 Rc8 (25...Rd8 26.Rc1 Bd6 27.h4+=) 26.Bd7 Rc2= 27.a4 g6 28.Rb1 Rc7 29.Rd1 Kg7 30.Kg2 Kf6 31.Kf3 Ke5 32.Be8 Bd6 33.h4 Ke6 34.Bb5 h5 35.a5 Rc5 36.Be8 Be7 37.a6 Rc7 38.Ba4 Bb4 39.Rd8 Ba5 40.Ra8 Kf6 41.Rb8 Ke7 42.Bb3 Bc3 43.Bd5 Kf6 44.Bb7 Be1 45.Ke2 Ba5 46.Bd5 Rc5 47.Bb3+/– Rc6 48.Rb7 Rc7 49.Kd3 Ke7 50.Kd4+/– Rb7 51.ab7+– Bc7 52.Kc5 Bd6 53.Kc6 Bb8 54.f4 Ke8+/– 55.Ba4 Ke7 56.Kd5 Bc7 57.Bb5+– Bb8 58.Kc6 Ke6 59.Ba4 Ke7+/– 60.Bc2 Ke6 61.Bb3 Ke7+/– 62.Kd5 Bc7 63.e4 fe4 64.Ke4 Bb8 65.Bd1 Ke6 66.Ke3 Kf5 67.Kf3 Bc7 68.Bb3 Kf6 69.g4 hg4 70.Kg4 a5 71.Kf3 Kg7 72.Bc2 Kh6 73.Kg4 f5+= 74.Kg3 Bb8 75.Ba4 Kg7 76.Kf3 Kf7 77.Bb3 Ke7 78.Bc2 Kd6 79.h5 gh5=+ 80.Bf5 a4 81.Bc2 a3–/+ 82.Bb3 Kc6 83.f5 Kb7 84.Ke4 Kc6 85.f6 h4 86.Kf3 Kd7 87.Kg4–/+ Bg3 88.Kh3 Kd6 89.Kg4 Be1 ½–½. Bulcourf,Carlos (2210) – Rodriguez,Jorge Luis (2300), Buenos Aires FMDA, 1992.

9.Bc4 cb5 10.Bb5 Nc6 11.Nc3 +=.

9.Bc4 cb5 10.Bb5 Nbd7 11.d4 Nb6 12.Nc3 Rc8 13.Qb3 Nbd5 14.Rac1 Nc3 15.Bc3 Be4 16.Ne5 Bd5 17.Qa4 a6 18.Bd3 Qb6 19.Rb1 Qa7 (19...Qd8!? 20.Rfc1 Qe8+=) 20.Bb4+/– Bb4 21.Qb4 (worse is 21.Rb4 Rc3+=) 21...Rc7 22.a4 (22.Rfc1 Rfc8 23.Rc7 Rc7+/–) 22...Rfc8 23.a5 (23.f3 g6+/–) 23...g6 (23...Ne4 24.f3 Nc3 25.Rb2=) 24.Qb2 Nd7 25.Nd7 Rd7 26.Rfc1 Rc1 27.Rc1 Bc6 28.Qb4 (28.f4!?+/–) 28...e5= 29.Rc5 (29.Rc4!?=) 29...ed4+= 30.ed4 Rd5 (better is 30...Qa8!? 31.Qc3 Qd8+=) 31.Rd5+= Bd5 32.h3 Kg7 33.Be2 Kg8 34.Bd3 Kg7 35.Bf1 Kg8 36.g3 Kg7 (better is 36...Qa8!?+=) 37.Bg2+– Bg2 38.Kg2 Qb8 39.Qe7 Qc8 40.d5 Kg8 41.d6 Qc6 42.Kg1 (42.Kh2 Qc5 43.Qf6 Qd5+/–) 42...Qc1+/– 43.Kh2 Qd2 (43...Qc5 44.Qf6 Qd5 45.Qd8 Kg7 46.Qb6+–) 44.Qe8 Kg7 45.Qe5 Kg8 46.Kg2 Qd3 47.h4 h5 48.Kh2 Qd2 49.Qf6 Qd5 50.Qe7 (50.Qd8 Kg7 51.Qc7 Qd4=) 50...Qf3? (better is 50...Qc5 51.Kg2 Qc6 52.f3 Qc2 53.Kf1 Qd1 54.Kf2 Qd2 55.Kg1 Qd1 56.Kh2 Qf3=) 51.Qe8 Kg7 52.Qe5 Qf6 53.Qc5 Qe6 54.Qd4 Qf6 55.Qd2 Kf8?? (55...Qd8 56.d7 f5+–) 56.d7 Qd8 57.Qd6 Kg8 58.Kg2 Kh8?? 59.Qd5 1–0. Lindner,JJ (2090) – Norman,DM (2020), EU–chT Seniors, 2003. (=1.c4 c6 2.b4 d5 3.e3 Nf6 4.Bb2 Bf5 5.Nf3 e6 6.b5 Be7 7.Be2 0-0)

9.Bc4 cb5 10.Bb5 Nbd7 11.Nd4 Bg6 12.f4 =+.

9.Bc4 Bd3 10.Bd3= Qd3 11.bc6 (11.Nc3 Rd8=) 11...Nc6 12.Qb3 Qd7 (12...Rfd8 13.Qb7 Rdc8 14.Ne5 Ne5 15.Qe7=) 13.Nc3 Rac8 14.Rac1 b6 (14...Rfd8 15.d4=) 15.d4 Rfd8 (15...Qb7 16.Ne5=) 16.Qb5 (16.Ne5 Qb7=) 16...Nd5 (16...Bb4 17.h3=) 17.Ne4 (17.Rfd1 Bd6=) 17...f5 (17...Ne5 18.Qd7 Nd7 19.a4+=) 18.Ned2 (18.Nc3 Rc7=) 18...Nb8 (18...Ne5 19.Qb3 Nf3 20.Nf3=) 19.Qb3 Bd6 (19...Nc6 20.Qb5=) 20.Nc4 (20.e4 fe4 21.Ne4 Nc6+=) 20...Nc6= 21.Rfd1 Na5 22.Na5 ba5 23.Rc8 (23.Ba3 Bb4=) 23...Rc8 24.Ne5 Be5 25.de5 a4 (25...a6 26.Bd4+=) 26.Qd3= Qb7 27.Rc1 (27.Bd4 Qc6=) 27...Rc1+= 28.Bc1 Qb4 29.Qd2 (29.Kf1 Kf7+=) 29...Qe4 (29...Qc3 30.f4+=) 30.f4 (30.Qb2 Kf7+=) 30...h6 (30...Kf7 31.Kf2+=) 31.h4 Kh7 32.Kh2 g5 (32...Kg6 33.h5 Kh7 34.Kg3+=) 33.hg5 hg5 34.g3 (34.Qa5 gf4 35.ef4 a6=) 34...Qb4 (34...Kg6 35.a3+=) 35.Kg2 (35.Qb4 Nb4 36.a3 Nd3=) 35...gf4 (35...Qc4 36.fg5 Kg6 37.a3+=) 36.ef4= Qe4 37.Kg1 Qf3 38.Qf2 +=. Chirpii,Alexandru – Smokina,Karolina (2175), Centrocoop Sept op, 1999.

7.Be2 dc4

8.Bc4 a6 9.a4 0-0 10.Nc3 cb5 11.ab5 Nbd7 12.0-0 Bg4 (12...Qc7 13.Qe2=) 13.ba6 Ne5 14.Be2 Nf3 15.Bf3 Bf3 16.Qf3 ba6 17.d4 a5 18.Rfb1 Rb8 19.Ne2 (19.Na4 Bb4=) 19...Qc8 20.Rc1 (20.Ra5? Qc2 21.Raa1 Rb2 22.Rb2 Qb2–+) 20...Qa6 21.Ba3 Ba3 22.Ra3 Rfc8 23.Rca1 Rb5 (23...Qb5 24.h3+=) 24.Nc3+= Rf5 25.Qe2 Qc6 26.f4 h5 27.Qe1 Qb7 28.Rb1 (28.Ra5? Ra5 29.Ra5 Rc3–+) 28...Qc6 29.Qg3 (29.Rc1!?+/–) 29...Ne4= 30.Ne4 Qe4 31.Raa1 Rc3 32.Rb8 Kh7 33.Re1 a4 34.Rbb1 (34.Rb6 Ra5=) 34...a3 35.Ra1 (better is 35.Qh3!?=+) 35...Rb5–+ 36.Kh1 Rb2 37.h3 (37.Qh3!? Kg8 38.Rg1–+) 37...a2 38.Kh2 Kg8 39.Qg5 (39.f5 h4 40.Qg5–+) 39...f6 (< 39...Re3 40.Rg1–+) 40.Qg3 Rcc2 41.Rg1 Re2 42.Rac1 Re3 43.Qh4 Qf3 44.Rcf1 (44.Ra1 Ree2 45.Qg3 Qe4–+) 44...Qd5 45.Rc1 (45.f5 Rf3 46.Rf3 Qf3 47.Qe1 Qf4 48.Kh1 Qf5 49.Qa1–+) 45...Ree2 46.Qg3 Qe4 47.Ra1 Rb1 48.d5 (48.f5 ef5 49.Ra2 Ra2 50.Rb1 Qb1–+) 48...ed5 (better is 48...h4 49.Qg4 Rg1 50.Rg1–+) 49.Qc3 Qf4 (50.Qg3 Qe4 51.Ra2 Ra2 52.Rb1 Qb1–+) 0–1. Pierred (2200) – Abs1_deep junior (2555), Rated game, 5m + 0s, 2005.

8.Bc4 Bd3 9.Qb3 Bc4 10.Qc4 =+.

6.b5 h6

7.a4 Be7 8.Be2 0-0 9.0-0 dc4 10.Nd4 (10.Bc4 cb5 11.ab5 Bd3 12.Bd3 Qd3=) 10...Bg6 (better 10...Bd3!?-/+) 11.Bc4= cb5 12.ab5 Nbd7 13.Be6 fe6 14.Ne6 Qb6 15.Nf8 Rf8 16.Nc3 Bd3 (16...Nc5 17.d4 Nce4 18.Ne4 Ne4 19.Qa4=) 17.Re1 (17.Qb3 Rf7 18.Nd5 Nd5 19.Qd3 Nc7+=) 17...Bd6 (17...Nc5 18.Ba3=) 18.h3 (18.Ba3 Nc5=) 18...Ne5 19.f4 Nc4?? (better 19...Nf7=) 20.Qb3+- Qc7 (20...Qc5 21.Na4 Qd5 22.Bf6 Rf6+=) 21.Rac1?? (better 21.Nd1 Be4 22.d3+-) 21...Kh8?? (better 21...Qf7!?=+) 22.Nd5?? (better 22.Nd1 Qa5 23.Qd3 (23.Rc4?! Bc4 24.Qc4 Qd2+/-) 23...Qd2 24.Qd2 (24.Qc4?! Qe1 25.Qf1 Qd2+/-) 24...Nd2 25.Nf2+-) 22...Nd5 (better 22...Qf7!? 23.Bd4 Qd5 24.Qd3 Na3+/-) 23.Qd3+- Nb4? (better 23...Ndb6 24.Bd4 Qe7+-) 24.Qc4 Qc4 25.Rc4 Nd3 26.Bd4 (better 26.Rb1+-) 26...Ne1+/- 27.Kf2 Nd3 28.Ke2 Bf4? (28...Nb4 29.Ba7 Kg8 30.g4+=) 29.ef4?? (better 29.Kd3 Bb8 30.Ra4+-) 29...Rf4?? (29...Nf4 30.Kd1 A) 30...Ng2 31.Rc7 (31.Ba7?! Kg8+=) 31...Rg8 32.Rb7+- (worse 32.Ba7 Kh7+-); B) 30...Kg8+=) 30.Kd3+- Kh7 (30...Rf7+-) 31.Rc7 Rf6 (31...Kh8 32.Rb7 h5 33.Ra7 Kh7+-) 32.Rg7! Kg7 33.Kc4 Kf7 34.Bf6 Kf6 35.d4 Ke6 36.g4 Kd6 (36...a5+-) 37.h4 (37.h4+-) 1-0. BeepBeepImAJeep (2665) - Mrfartbrains (2075), lichess.org, 2015.

7.a4 Bh7 8.Be2 Bb4 9.0-0 0-0 10.d4 Be7 11.Nbd2 Nbd7 12.c5 Rc8 13.a5 cb5 14.a6 (14.Bb5 Qc7=) 14...ba6 (better 14...b6-/+) 15.Ra6+= Qc7 16.Qa1 Ra8 17.Bb5 Nb8 18.Ra2 Ne4 19.Ne4 Be4 20.Ne5 Bf6 21.f3 Be5 22.de5 Bg6 23.Bd4 Nc6 24.Ra6 (24.Bc6 Qc6 25.Ra7 Bd3+/-) 24...Ne7 (24...Nb4!? 25.Rd6 Rfb8+=) 25.c6 Rfb8 26.Be2 Rc8 (26...Nc8 27.Qa3+=) 27.Rc1 Nf5 28.Ra7 (28.Ba7 Ne7 29.Bc5 Ra6 A) 30.Qa6?! Qc6 (30...Nc6? 31.Bd6 Qd8 32.Rc6+-) 31.Qc6 Rc6+= (31...Nc6? 32.Bd6+-); B) 30.Ba6+-) 28...Ra7+/- 29.Qa7 (29.Ba7? Ra8-+) 29...Qa7? (better 29...Nd4 30.Qd4 Ra8+/-) 30.Ba7+- Ne7 31.c7 d4 (31...f6 32.ef6 gf6 33.Ba6+-) 32.Ba6 (32.Bd4?! Nd5+-) 32...d3 (32...de3 33.Bc8 Nc8 34.Be3+-) 33.Bc8 Nc8 34.Bd4 (34.Bc5!? d2 35.Rd1 Bd3+-) 34...Kf8 35.e4 Ke7 36.Kf2 1-0. BeepBeepImAJeep (2680) - ZibbitVideos (2415), lichess.org, 2015.

7.Nc3 Bd6 =.

7.Be2 dc4 8.Bc4 a6 9.a4 =.

7.Be2 Bd6 8.0-0 (8.cd5 Nd5 9.0-0 0-0=) 8...0-0 (8...dc4 9.Bc4 a6 10.a4=) 9.d4 (9.cd5 Nd5 10.d3 Nc7= (worse is 10...cb5 11.e4+–)) 9...dc4 10.Bc4 cb5 (10...a6 11.a4=) 11.Bb5 a6 (11...Nc6 12.Bc6 bc6 13.Ba3=) 12.Bd3 Qb6 (12...Bd3 13.Qd3 Nc6 14.Rc1=) 13.Ba3 Bg4 (13...Bd3 14.Qd3 Rc8 15.Nbd2 Ba3 16.Qa3=) 14.Bd6 (14.h3 Ba3 15.Na3 Bf3 16.Qf3 Qc6=) 14...Qd6 15.Nbd2 Nbd7 (15...Nc6 16.h3 Qa3 17.Qb3 Qb3 18.ab3 Bf3 19.Nf3=) 16.Qb3+= b6 17.Rfc1 a5 (17...Rfd8 18.Nc4 Qd5 19.Nce5+=) 18.Rc2 (18.Nc4 Qd5 19.Nfe5 Rfc8+/–) 18...Rac8 (18...Bf3 19.Nf3 e5 20.Bf5+=) 19.Rac1 Rc2 20.Rc2 Nd5 (20...Qd5 21.Qd5 Nd5 22.a3+=) 21.a3 Qb8 (21...Rd8 22.e4 Bf3 23.Nf3+= (23.gf3? Nf4–+)) 22.Qb5 (22.e4 Nf4+=) 22...Qb7 (22...Rd8 23.Be4+=) 23.Qc6 (23.Ne1 Rd8+/–) 23...Rb8 24.Bb5 Qc6+= 25.Rc6 Bf3 26.gf3 Kf8 27.e4 N5f6? 28.Rc7+– Rd8 29.e5 Ne5 30.de5 Rd2 31.ef6 gf6 32.Rc6 White fights for the Initiative 32...a4 33.Rc8 Kg7 34.Ra8 Rb2 35.Ba4 b5 36.Rb8 Ra2 37.Bb5 Ra3 38.Rb7 Kf8 39.Kg2 Rc3 40.Rd7 Rc5 41.Bd3 Rg5 42.Kh1 f5 43.h3 Rg6 44.Kh2 Rg5 45.Rd8 Kg7 46.Be2 Kf6 47.f4 Rg7 48.Rh8 Kg6 49.Bf3 f6 50.Re8 e5 51.fe5 fe5 52.Re6 Kg5 53.Re5 Kf6 54.Rb5 Rg5 55.h4 (55.h4 Rg8 56.Rb6 Ke5 57.Rh6+–) 1–0. Hauck,B – Berkes,A, 1990.

7.Be2 Be7 8.0-0 0-0 9.Nc3 c5 (9...dc4!? 10.Bc4 a6+=) 10.d4= Nbd7 11.cd5 ed5 12.dc5 Nc5 13.Nd4 Bh7 14.Nb3 Rc8 15.Nc5 Bc5 16.Na4 Be7 17.Qd4 Rc2 18.Bd3 Bd3 19.Qd3 Rc4 20.Nc3 Qd7 21.Rfd1 Rd8 22.h3 Qe6 23.Ne2 Bd6 24.Bd4 Bb8 25.Rac1 Rc1 26.Rc1 Qd6 27.g3 Ne4 28.Nf4 Ng5 29.Kg2 Qd7 30.Rh1 Bf4 31.ef4 Ne6 32.Be5 d4–/+ 33.Rd1 Qd5–+ 34.Qf3 Qb5 35.Rd3 Qc6 36.f5–/+ Nc5 37.Rd4= Qf3 38.Kf3 Re8 39.Bd6 b6 40.Bc5 bc5 41.Rc4 Rc8 42.Ke4 Rb8 43.Kd5 Rb2+= 44.Kc5 Ra2 45.f4 Ra3–/+ 46.g4 Rh3 47.g5? hg5–+ 48.fg5 Rg3 49.g6 fg6 50.fg6 Rg6 51.Ra4 a6 52.Kd5 Rf6 53.Ke5 Kf7 54.Rb4 Kg6 55.Rg4 Kf7 56.Rb4 Re6 57.Kf5 Rf6?? 58.Kg5?? Rc6 59.Rb7 Kg8 60.Ra7 Kh7 61.Kh5 Rc5 62.Kg4 a5 63.Kf4 Kh6 64.Ke4 g6 65.Kd4 Rf5 66.Ke4 Kg5 67.Ra6 Rb5 68.Kf3 Kf5 69.Ke3 g5 70.Kf2 Kg4 71.Ke3 Rb3 72.Ke4 Ra3 73.Ra8 a4 74.Ra5 Ra1 75.Ke3 a3 76.Kd2 a2 77.Kc2 Rh1 0–1. Boysan,Ferit – Bombardiere Rosas,Eduardo (2235), Internet Section, 2004.

6.c5 a5

7.a3 b6 8.Bd4 ab4 9.cb6 Nbd7 10.Ne5 (10.b7!? Rb8 11.Ba6=+) 10...Ne5–/+ 11.Be5 Qb6 (< 11...ba3 12.b7 Rb8 13.Bb8 Qb8 14.Ba6+/–) 12.Qb3 (12.ab4 Ra1 13.Ba1 Bb4–/+) 12...Be7 (12...Qc5!? 13.a4–+) 13.Bd3 Nd7 (13...Bd3 14.Qd3 b3 15.0-0–+) 14.Bf5 (14.ab4 Ra1 15.Ba1–+) 14...Ne5–+ 15.Bc2 Nd7 16.a4 c5 17.a5? (better is 17.d3–+) 17...Ra5 18.Ra5 Qa5 19.Qa4 (19.Qb2 Bf6 20.Qb3 c4–+) 19...Qd8 (19...Qa4!? 20.Ba4 c4 21.Bc6–+) 20.d3 0-0 21.Nd2 Qc7 22.Bb1 Bd6 23.Qc2 f5 24.f4 Rc8 (25.Ba2 Nb6–+) 0–1. Waibel,Ulrich (1650) – Lisakowski,Christof (1960), RS6D – A00 – Sokolsky Alt–1, 2004.

7.a3 e6 8.Nd4 Bg4 9.f3 Bh5 10.Be2 e5 11.Nb3 =.

7.a3 Na6

8.Ba6 ba6 9.Nd4 Rc8 10.Qe2 +/–.

8.Ba6 Ra6+= 9.Nc3 Be7 +=.

8.Ba6 Ra6 9.d4 Bb1 10.Rb1 b5 (10...Be7 11.0-0=) 11.0-0 a4 12.Ne5 Be7 13.Qe2 Qc7 14.Bc3 Nd7 15.Nd7 (15.Nd3 0-0+=) 15...Qd7= 16.f4 f5 17.Qh5 g6 18.Qf3 Kd8 19.Kf2 Kc8 20.Ke2 (20.Rb2 h5=) 20...Kb7 21.Be1 (21.Rb2 h5=) 21...Raa8 22.h4 h6 23.Bf2 Rag8 24.Rh1 Rh7 25.Rh3 Bf6 26.Rbh1 Rhg7 27.g3 Rh7 28.R1h2 Rgg7 29.Qh1 Rg8 30.Qf3 Rhg7 31.Qh1 (31.Rh1 Qe7+=) 31...Qf7 32.Kf1 g5 33.hg5 hg5 34.Rh7 gf4 (34...Qc7 35.Ke2=) 35.gf4 Qg6 36.Rg7 ½–½. Melich,Jindrich (2090) – Dragomirescu,Calin (2140), Eretria GRE,1st Open, 2014.

8.Ba6 Ra6+= 9.d4 ab4 10.ab4 Ra1 11.Ba1 Qa8 12.Nc3 Be7 (12...Qa3 13.0-0+=) 13.0-0+= 0-0 (13...Qa6 14.Bb2=) 14.Bb2 (14.Ne5 h5=) 14...Bg4 (14...b6 15.Nh4+=) 15.h3 (15.Qd3 Bf3 16.gf3 Qb8=) 15...Bf3 16.Qf3 b5 17.Ra1 Qb7 18.Qd1 (18.Qf4 Bd8=) 18...Ra8 19.Ra8 Qa8 20.Qa1 (20.f3 Nh5=) 20...Qa1 21.Ba1 Kf8 22.f3 Ke8 23.Bb2 Kd7 24.g4 Ne8 25.Kf2 Bh4 26.Ke2 Nc7 (26...f5 27.Kd3=) 27.Nd1 f5 28.Bc3 Na6 29.Nb2 g6 30.Nd3 Bf6 (30...Ke7 31.Ne5 Nb8 32.Kd3+=) 31.Be1+= Nc7 (31...fg4 32.fg4 g5 33.Bg3+=) 32.Bg3 Ne8 (32...Na6 33.Bf4+=) 33.Ne5 (33.g5 Bg7+=) 33...Be5 34.Be5 Ke7 (34...g5 35.Kd3=) 35.g5 Kf7 36.Kf2 Ng7?? (better is 36...Ke7+=) 37.Bg7+– Kg7 38.Kg3 e5 39.de5 Kf7 40.f4 Kf8 41.Kf3 Kf7 (41...Ke8 42.Kf2+–) 42.Ke2 Ke7 (42...d4 43.ed4 Ke6+–) 43.Kd3 Ke6 44.Kd4 Ke7 45.e6?? (better is 45.Kc3 Ke6 46.h4+–) 45...Ke6= 46.h4 White threatens strongly Kf7 46...Kf7 47.Ke5 Ke7 48.h5?? (better is 48.Kd4 Ke6 49.Kd3=) 48...gh5–+ 49.Kf5 Kf7 ½–½. Melich,Jindrich (2140) – Kubicek,Antonin, Decin op–A, 1998.

8.Qb3= b5 9.Nd4+= a4 10.Qd1 Bb1 11.Qb1 (11.Nc6!? Qc7 12.Ne5+/–) 11...Qd7= 12.f4 Nc7 (12...Be7 13.Be2+=) 13.Be2 (13.Nf3 0-0-0+=) 13…Be7 (14.0-0 0-0+=). Rudenkov – Dashkevich, 1961.

8.Qb3 Be7 9.Nc3 0-0 10.Ne5 =+.

8.Qb3 Be7 9.Nc3 b6 10.d4 0-0 11.Ne5 Nb8 12.Na4 Nfd7 13.cb6 ab4 14.Nd7 Nd7 15.ab4 Nb6 16.Nc5 Ra1 17.Ba1 Qa8 18.Bb2 Rb8 (Black fights for the Initiative) 19.Be2 Nd7 20.0-0 Nc5 21.dc5 Bc5 22.Ra1 Qb7 23.Be5 Rd8 24.b5 f6 25.Qc3 fe5 26.Qc5 cb5 27.g4 Bg6 28.Bb5 Rb8 29.Bf1 Qb2 30.Qc1 Qc1 31.Rc1 Rb1 32.Rb1 Bb1 33.f3 g5 34.Bg2 e4 35.fe4–/+ Be4 36.Be4 de4 37.Kf2 Kf7 38.Ke2 Ke7 39.Kd2 Kd6 40.Kc3 ½–½. Adam,St – Blosze, corr DDR (ch/15/VR), 1988.

8.Qb3= Be7 9.Nd4 =.

8.Qb3 Be7 9.Be2 0-0 10.Nd4 (10.0-0 b6 11.Nd4 bc5 12.Nc6 c4 13.Nd8 cb3+=) 10...Bg6 (10...Be4 11.0-0=) 11.0-0 Qc7 12.Nc3 (12.f4 b6 13.cb6 Qb6=) 12...Rfb8 (12...e5 13.Nf3=) 13.Na4 Nd7 14.Nf3 (better is 14.f4=) 14...b6 (better is 14...Re8!?=) 15.Nb6+/– Nb6 16.Be5 (< 16.cb6 Qb6 17.Be5 Nc7=+) 16...Qb7 (16...Nc5 17.bc5 (17.Bc7? Nb3 18.Bb8 Rb8–+) 17...Nd7 18.Qb8 (18.Bc7?! Rb3 19.Nd4 a4=) 18...Qb8 19.Bb8 Rb8 20.d4+/–) 17.cb6 Qb6 18.Bb8 Nb8 19.Ne5 ab4 (19...Bf5 20.g4 Be4 21.f3+/–) 20.ab4 Ra1 21.Ra1 Bb4? (better is 21...Bf5+–) 22.Ra4 (22.Ng6?! hg6 23.d4 c5+/–) 22...c5 23.Ra8 (23.Ng6?! hg6 24.d4 Kh7+/–) 23...Qb7 (23...f6 24.Nd7 Qc7+–) 24.Qa4 h6 25.Ng6 fg6 26.Qe8 (26...Kh7 27.Bd3 Qf7 28.Qf7 c4 29.Bg6 Kh8 30.Rb8 Bf8 31.Qf8) 1–0. pcmvr (2765) – iozeph (2500), net–chess.com, 2006.

7.a3 ab4

8.ab4 Ra1

9.Ba1 b6 10.d4 bc5 11.dc5 Qc7 12.Nbd2 (12.Bf6 gf6 13.Nc3 Qa7=) 12...Be7 (12...Qb7 13.Qa4=) 13.Be2 (13.Be5 Qb7 14.Bb8 Qb8+=) 13...0-0 (13...Qb7 14.Bc3=) 14.Nd4 (14.Nh4 Qb7 15.Nf5 ef5=) 14...Bg6 15.0-0 e5 16.N4b3 Nbd7 17.f4 h6 18.Bc3 (18.Qe1 e4=) 18...Ne4 (18...Ra8 19.Qe1=) 19.Ne4 Be4 20.Qa1 (20.Nd2 Bh7=) 20...Bf6 21.Nd2 ef4 (21...Bg6 22.fe5 Ne5 23.Bd4=) 22.Ne4 de4 23.Rf4 Bc3 24.Qc3 Nf6 25.Rf6 gf6 26.Qf6 Qd7 27.Qh6 Qd5 (27...Rb8 28.Qg5 Kf8 29.b5 cb5 30.Qe5=) 28.Qf4 Ra8 29.h4 (29.Qg3 Kf8 30.Bf1=) 29...Re8 (better is 29...Ra4!? 30.Qb8 Kh7=) 30.Bg4+/– Qd8 (30...Kg7 31.Qg3 Kf6 32.Qc7+=) 31.Bf5 Qf6 32.Qg4 (32.h5 Qa1 33.Kf2 Qb2 34.Kg3 Qg7 (34...Qb4 35.Qg5 Kf8 36.Qh6 Kg8 37.Bh7 Kh8 38.Bg6 Kg8 39.Qh7 Kf8 40.Qf7) 35.Kh3 Qf6+–) 32...Qg7 (better is 32...Kf8+/–) 33.Qf4 Qf6 34.Qg4 (34.h5 Qa1 35.Kf2 Qb2 36.Kg3 Qg7 37.Kh3 Qe5 38.Qe5 Re5+–) 34...Kh8 (better is 34...Qg7!?=) 35.Be4+/– Qa1 (35...Re6!? 36.Qh5 Kg7+=) 36.Kf2+– Qb2 (36...Qe5 37.Kf3 Re6 38.g3+/–) 37.Kf3 Re6 (37...Qe5 38.Qf4 Qh5 39.Kf2+–) 38.Qh5 Kg7 (38...Kg8 39.Qg5 Kf8 40.Qd8 Kg7 41.Qd4 Rf6 42.Kg4 Qd4 43.ed4+–) 39.Qg5 Kf8 40.Qd8 Kg7 41.Qd4 Rf6 42.Kg4 Qe2 (42...Qd4 43.ed4 Re6+–) 43.Kg5 Qf2 44.Bf3 (better is 44.g4 Kg8 45.Qf6 Qe3 46.Qf4 Qc3+–) 44...Qg3 45.Bg4 Qf2 46.h5 Kh7 (46...Kg8 47.Qf6 Qe3 48.Kh4 Qe1 49.g3 Qh1 50.Kg5 Qd5 51.Kh6 Qd2 52.Qg5 Qg5 53.Kg5 f5+–) 47.Qf6 Qe3 48.Kh4 Qe1 49.Kh3 Qc3 50.Qc3 1–0. Frosinos,Ioannis (2040) – Aggelis,N (2270), Aegean Open, Aghios Kirykos GRE, 2008.

9.Ba1 b6 10.Bf6 Qf6 11.d4 =.

9.Ba1 Nbd7 10.Nc3 e5 (10...Be7 11.Be2=) 11.Be2 (11.Ne2 e4 12.Ng3 Bg6=) 11...h6 (11...Be7 12.0-0=) 12.0-0= Be7 13.d4 ed4 14.Nd4 Bh7 15.b5 Bc5 (15...Qa8 16.bc6 bc6 17.Qa4+=) 16.bc6+= bc6 17.Nc6 Qb6 18.Nd5 (18.Qa4 0-0 19.Bf3 Be4 20.Ne4 de4 21.Be4 Be3+/–) 18...Qc6+= 19.Bf6 Be4 (19...Nf6?? 20.Bb5 Qb5 21.Nc7 Ke7 22.Nb5+–; 19...gf6 20.Bb5! Qd6 21.Nf6 Ke7 22.Nh7 Rh7 23.Bd7 Qd1 24.Rd1+–) 20.Nc3 (worse is 20.Bg7 Rg8 21.Bb5 Qd5 22.Qd5 Bd5=) 20...Bg2 (20...gf6? 21.Bb5 Qb7 22.Bd7 Qd7 23.Ne4 Qd1 24.Rd1+–; 20...Nf6?? 21.Bb5 0-0 22.Bc6 Bc6 23.Qd3+–) 21.Bb5 (21.Bg7?? Rg8 22.Bg4 Bf1–+ (worse is 22...Rg7 23.Qd7 Qd7 24.Bd7 Kd7 25.Rd1 Ke7 26.Ne2–+)) 21...Qb7 22.Qd7 Qd7 23.Bd7 Kd7 24.Rd1 Ke6 (24...Kc6 25.Bg7 Rg8 26.Kg2 Rg7 27.Kf3+=) 25.Bg7 Rg8 26.Kg2 Rg7 27.Kf3 Rg5 28.Ra1 Rf5 29.Ke2 Bd6 30.Ra6 Kd7 31.h3 (31.h4 h5+/–) 31...Rh5+= 32.Ra2 (32.Ne4 Be7+=) 32...Ke8 (32...Rh3 33.Ra7 Ke6 34.Ra6=) 33.Ne4+= Be7 34.Ra8 Kd7 35.Ra7 Ke8 36.Ng3 Rh3 37.Kf1 Bc5? (37...Bd6 38.Nf5 Bc5 39.Rc7 Rh1 40.Kg2+=) 38.Ra5 (better is 38.Ra4!? Bd6 39.Kg2 Bg3 40.Kh3 (40.fg3?! Rh5=) 40...Bf2 41.Kg2+–) 38...Bb6 39.Ra4 Bd8 40.Nf5 Kd7 41.Rd4 Kc7 42.Nd6 Rh4 (42...f6 43.Nf5 Rh5 44.e4+=) 43.Rh4+/– (43.Nf7?! Rd4 44.ed4 Bf6=) 43...Bh4 44.Nf7 h5 45.Nh6 Kd7 46.Nf5 (46.f4+=) 46...Bd8 (46...Bf6!?+=) 47.Kg2+/– Bf6 (47...Kc6 48.e4+–) 48.Kh3 (48.Ng3 h4 49.Ne4 Be7+–) 48...Ke6 (48...Bc3 49.Ng3+–) 49.Ng3 h4 50.Ne4 Bd8 51.Kg4 Ke5 (51...Kd5 52.Nd2+–) 52.Nd2 Kd5 53.Nf3 Ke4 (53...h3 54.Kh3 Bb6 55.Ng5+–) 54.Nh4 Ba5 55.Nf5 Be1 (55...Bb6 56.Ng3 Kd3 57.Kf3+–) 56.Ng3 Kd3 57.Kf3 Ba5 (57...Bc3 58.Ne2 Be1 59.Nf4 Kc4 60.Ng2+–) 58.Ne2 (better is 58.e4 Kd4 59.Kf4+–) 58...Kd2?? (58...Be1+–) 59.Nf4 (59.e4 Bd8 60.e5 Kd3+–) 59...Ke1 (59...Kc3 60.Ke4 Kc4 61.Nd5+–) 60.Nd3 (60.e4 Kd2+–) 60...Kd2 61.Ne5 Bc7 (61...Ke1+–) 62.Ke4 Ke2 (62...Bd8 63.f4 Bf6 64.f5+–) 63.f4 Bb6 (63...Kd2 64.f5 Bd8+–) 64.Ng4 1–0. Morovic Fernandez,Ivan (2560) – Obregon Rivero,JC (2500), 8th La Habana CUB, Capablanca Open A, 2013.

9.Ba1 Nbd7 10.Nd4 Bg4 11.f3 Bh5 =.

9.Ba1 Nbd7 10.Bf6 Nf6 (10...Qf6 11.d4=+) 11.Nc3 (11.d4 Be7=) 11...Be7 (11...Ne4 12.Be2=) 12.Be2 0-0 13.0-0 Qc7 (13...Ne4 14.Na4=) 14.Qa1 (14.Nh4 Ra8=) 14...b6 15.d4 bc5 (15...Nd7 16.Rd1=+) 16.bc5 (< 16.dc5 Qb7 17.Na2 Ra8–/+) 16...Rb8 17.Qa6 Rb3 18.Rc1 Nd7 19.Bd3 (19.Qa4 Rb8=) 19...Bd3 (19...Bg4 20.Nd2 Rb2 21.Rc2 Rc2 22.Bc2=) 20.Qd3 Qa5 21.Qc2 Qa3 (21...Qb4 22.Nd1=) 22.Nb1 Qb4 23.Nbd2 Rb2 24.Rb1 (24.Qd3 e5=) 24...Rb1 (< 24...Rc2 25.Rb4 Bf8 26.Nf1+/–) 25.Qb1 (25.Nb1 e5 26.Nc3 Bf6=) 25...Qb1 26.Nb1 e5 27.g4 (27.Na3 e4 28.Nd2 Bd8=) 27...e4 (27...Bd8 28.h3=) 28.Ne1 (28.Nfd2 Nf6 29.g5 Nd7=) 28...Bh4 (28...Bd8 29.f4=) 29.Nc2 g6 (29...Bd8 30.f3 ef3 31.Nb4=) 30.Nc3 Bd8 31.Nb4 Nb8 32.Kg2 (32.f3 f5=).COMP, 4', 1990.

9.Ba1 Be7 10.Nc3 0-0 11.d4 (11.Be2 Bg4=) 11...Nbd7 (11...b5 12.Ne5=) 12.Be2= Qc7 (12...b6 13.Nh4=) 13.0-0 (13.Nh4 Be4=) 13...Ra8 (13...Bg4 14.Bb2=) 14.Nh4 b5 (14...b6 15.Nf5 ef5 16.Bd3+=) 15.Nf5+= ef5 16.Qc2 (16.Bd3 f4+=) 16...Ng4 (16...f4 17.Bb2=) 17.g3+= Nh6 18.Bb2 g6 (18...Nf6 19.Bd3+=) 19.Ra1 Ra1 20.Ba1 Qa7 21.Qa2 (21.Bb2 Bf6 22.Bd3 Nb8+=) 21...Qa2 22.Na2 Nb8 (22...Ng4 23.Nc3 Nb8 24.Nd5 cd5 25.Bb5+/–) 23.Bc3 Na6 (23...g5 24.Nc1+=) 24.f3 (24.Nc1 Ng4+=) 24...Kf8 (better is 24...Nc7+=) 25.e4?? (better is 25.Nc1+=) 25...fe4–/+ 26.fe4 de4 27.d5 cd5 28.Bb5 (28.Kf1 Nf5 29.Bb5 Nc5 30.bc5 Bc5–/+) 28...Nc5 29.Bc6 (29.bc5 Bc5 30.Kf1 d4–/+) 29...d4! 30.Bd4 Ne6 31.Bc3 (31.Bb6 f5–/+) 31...f5 32.b5 (32.h3 Nf7–/+) 32...Bc5 33.Kh1 (33.Kg2 Ng4–/+) 33...Nf7 (33...Ng4 34.Kg2–/+) 34.Nb4 (34.Bb4 Nfd8 35.Bd5 Ke7 36.Bc5 Nc5–+) 34...Ke7 (34...Nd4 35.Na6 Bb6 36.Nb4–/+) 35.Na6 (35.Nd5 Kd6–/+) 35...Kd6 (35...Bd4 36.Bb4 Kf6 37.Kg2–+) 36.Ba5 (better is 36.Kg2!?–/+) 36...Ne5–+ 37.Be8 (37.Ba8 Nc4 38.Bc3 Nd4 39.Bd4 Bd4–+) 37...Ng7 (37...e3 38.b6 Nd8 39.Kg2–+) 38.Bc7 (38.Bg6 Ng6 39.b6 Ne7–+) 38...Kd5 39.Bg6 Ng6 40.b6 Bb6! 41.Bb6 Ne6 (41...Ne5 42.Nc7 Kc6 43.Bd4–+) 42.Nb4 (42.Kg2 Ne5–+) 42...Kc4 43.Nc2 Kd3 44.Ne3 (44.Nb4 Ke2–+) 44...Ne7 45.Ng2 Nd5 46.Ba7 e3 47.Nh4 e2 48.Bf2 Ne3 (48...Nd4 49.Ng2–+) 49.Nf5 (49.Nf3–+) 49...Nf5 (49...Nf5 50.g4 Ne3–+) 0–1. Partikas,Valentinas A (2375) – Barczynski,Miroslaw (2265), ICCF corr Baltic Sea tt–7 bd13, 2002. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 e6 4.e3 Nf6 5.c4 c6 6.c5 a5 7.a3 ab4 8.ab4 Ra1)

9.Ba1 Be7 10.Be2 0-0 11.0-0 b6 12.d4 Nbd7 13.Nbd2 (13.Nh4 Bb1 14.Qb1 Ne4=) 13...h6 (13...Ne4 14.Ne4 Be4 15.Bc3=) 14.Bb2 (14.Bc3 Qa8=) 14...Qb8 (14...Qc7 15.Qa4=) 15.Qc1 (15.Qb3 Qb7=) 15...Qb7+= 16.Qc3 (16.Nh4 Bh7=) 16...Rb8 (16...Ne4 17.Ne4 de4 18.Nd2=) 17.Ba3= Ne4 (17...Bg4 18.Ra1=) 18.Ne4 Be4 19.Nd2 (19.Ra1 bc5 20.bc5 Nf6=) 19...Nf6 (19...Bf5 20.Ra1=) 20.Bd3 (20.Ra1 Bf5=) 20...Bd3 21.Qd3 Ra8 22.Ra1 Ra4 23.Qb3 (23.f3 Qa7=) 23...Qa6 (23...Ra7 24.Qc2=) 24.f3 (24.cb6 Qb5=) 24...Nd7+= 25.Qc3? (better is 25.f4!?+=) 25...bc5–+ 26.bc5 Nc5! 27.Bb2 (27.Bc5 Ra1 Pinning (27...Ra1 Deflection); 27.dc5 Bf6 Combination) 27...Qe2 (27...Ra1 28.Ba1 Nd3 29.Nb1–+) 28.dc5–/+ Bf6 (28...Ra1 29.Ba1 Bf6 30.Qb3 Ba1 31.Nf1–+) 29.Qb3 Ra1 30.Ba1 Qe1 (30...Ba1 31.Nf1 Bb2 32.Qb4–/+) 31.Nf1 Qa1 32.Qb8 Kh7 33.Qd6? (33.Qb7!?–/+) 33...d4 (33...Bd4 34.ed4 Qd4 35.Ne3 Qe3 36.Kf1–+) 34.e4 Qe1 (better is 34...d3 35.Qd3 Bd4 36.Kh1 e5–+) 35.e5? (better is 35.h3!?–/+) 35...Qe5 (worse is 35...Be5 36.Qd7 Qc3 37.f4 Bf4 38.Qf7 Be3 39.Kh1–+) 36.Qc6 (36.Kf2 Kg6–+) 36...Be7 (36...d3 37.g4–+) 37.Qe4 Qe4 38.fe4 Bc5 39.Kf2 h5 (39...Kg6 40.Ke2–+) 40.Ke2 Kg6 41.Nd2 f5 (41...e5 42.Nf3 Kf6 43.h3–+) 42.Kd3 (42.e5 Kg5 43.Nb3 Bb6–+) 42...Kg5 (42...e5 43.Kc4 Be7 44.Kd5–+) 43.ef5 (43.Nb3 Bb6–+) 43...ef5 (43...Kf5 44.Ne4 Ba7 45.Nd6 Ke5 46.Ne4–+) 44.Nf3 (44.Nb3 Bd6–+) 44...Kf4 45.Nh4 Kg4 46.Nf3 h4 47.Ne5 Kf4 48.Ng6 Kg5 49.Ne5 Ba7 (49...h3 50.gh3 Kh4 51.Kc4–+) 50.Nc6 (50.Nf3 Kg4 51.Ne5 Kh5–+) 50...Bb6 51.Nd4? (51.Ne7–+) 51...Bd4 0–1. Pedersen – Sorensen, 1986. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.c5 a5 7.a3 ab4 8.ab4 Ra1)

9.Ba1 Be7 10.Bf6 Bf6 11.d4 Nd7 =.

6.c5 b6

7.cb6 ab6 8.a3 +=.

7.cb6 Qb6 8.Bf6 (8.Nh4 Be4 9.a3 c5=) 8...gf6 9.a3 a5 10.b5 cb5 (10...Bd6 11.Nc3=) 11.Nd4 b4 (11...Be4 12.Bb5 Kd8 13.f3=) 12.Nf5 (12.ab4 Bb4 13.Qa4 Ke7 14.Nf5 ef5=) 12...ef5 13.ab4 (13.Qa4 Kd8+=) 13...Bb4 (worse is 13...Qb4 14.Nc3+–) 14.Bd3 (14.Qb3 Qc5+=) 14...Qe6 (14...f4 15.0-0+=) 15.Na3 (15.0-0 Nd7+=) 15...Ke7 (15...Nc6 16.Qc2 Ne7 17.Qa4 Kd8 18.Nc2+=) 16.Nb5 Qd7 (16...Qe5 17.0-0 f4 18.Nd4+=) 17.Nd4+/– f4 18.Bb5 (18.0-0 Bc5+/–) 18...Qc7 (18...Qb7 19.Qg4+/–) 19.0-0 Nd7 (better is 19...Ra7!?+/–) 20.Nc6 Ke6 21.Qg4 f5 22.Nd4 (22.Nd4 Ke7 23.Qf5+–) 1–0. pcmvr – iozeph (2400), net–chess.com, 2008.

7.Qc1 bc5 8.bc5 Nbd7 9.d4 Be7 10.Be2 Rb8 11.0-0 0-0 12.Nc3 Qc7 13.Nh4 Ng4 14.g3 (better is 14.Nf3=+) 14...Bh4–+ 15.Bg4 Bg4 16.f4?? (better is 16.gh4 Qd8 17.f4–+) 16...Be7 17.e4 f5 (17...Rfd8 18.e5–+) 18.ed5 ed5 19.Re1 Bf6 20.Qd2 (20.Nd1 Qa5 21.Nf2 Qa4–+) 20...Qa5 21.Rab1 Nc5! 22.dc5 d4 (better is 22...Rb2 23.Qb2 Bc3–+ (< 23...Qc3 24.Qc3 Bc3 25.Re6–+; < 23...Qc5 24.Kg2 Bc3 25.Qc2–+)) 23.Rec1?? (better is 23.Ne4 Qd2 24.Nd2–+) 23...dc3 24.Qe1 (24.Bc3 Qc5 25.Kg2 Rb1 26.Rb1–+) 24…Qc5 (25.Qf2 Bd4 26.Rf1 Bh3 27.Qd4 Qd4 28.Rf2 Rb2 29.Rbf1 Rf2 30.Rf2 Qd1 31.Rf1 Qf1) 0–1. Hasler,Ulrich – Franke, corr, 1965.

7.d4 a5 8.a3 Be7 9.Nc3= 0-0 10.Ne5 (10.Be2 ab4 11.ab4 Ra1 12.Qa1 Qc7=) 10...h6 (10...Nfd7 11.Nd7 Nd7 12.b5+=) 11.Bd3 Nfd7 (11...Bd3 12.Qd3 ab4 13.ab4 Ra1 14.Ba1+=) 12.Nd7= Nd7 13.Bf5 ef5 14.0-0 (14.Qf3 ab4 15.ab4 Ra1 16.Ba1 bc5 17.bc5 Qa5+=) 14...Qc7 15.Qc2 (15.Qf3 Rfb8 16.Rfb1 ab4 17.ab4 Ra1 18.Ba1 g6+=) 15...g6 (15...f4 16.e4 de4 17.Qe4=) 16.Ne2 (16.Rfd1 Rfd8+=) 16...Rfb8 17.Bc3 (17.Rfb1 ab4 18.ab4 Re8+=) 17...a4 (17...bc5 18.bc5 Rb5 19.a4+=) 18.g3 (18.Rae1 b5=) 18...b5 19.Nf4 (19.Qd3 Re8=) 19...Re8 20.Rae1 Nf6 21.f3 (21.Nd3 Rad8=) 21...Bf8 22.Qf2 (22.Bd2 Bg7=) 22...Re7 (22...Bg7 23.Nd3=) 23.Re2 Bg7 24.Kg2 Rae8 25.Rd1 g5 (25...Kh7 26.h3+=) 26.Nd3= Qc8 27.Ne5 Nd7 28.Nd3 Nf8 (28...Qc7 29.Rde1=) 29.h4 f4 (29...Ng6 30.hg5 hg5 31.Rde1=) 30.gf4 Qf5 (30...gf4 31.Nf4 Ng6 32.Ng6 fg6 33.h5=) 31.Kf1 (31.hg5 hg5 32.Kf1 Qh3 33.Ke1 Ng6 34.fg5 Nh4+=) 31...gf4 (31...Qh3 32.Ke1 Ng6 33.hg5 (worse is 33.fg5 Nh4 34.Kd2 Nf3 35.Kc2 hg5–/+) 33...hg5 34.fg5+=) 32.Nf4 Ng6 33.Ng6 (33.Ng2 Qh3 34.Ke1 Bf6=) 33...fg6 34.Ke1 Rf7 35.f4 g5 36.hg5 hg5 37.Kd2 gf4 38.Qf4 Qf4 39.ef4 ½–½. Luzuriaga,Norberto Horacio (1980) – Kund,Wolfgang (2165), SM–2009–0-00088, 2009.

7.Bd4 =+.

7.Nd4 bc5 8.Nf5 ef5 9.bc5 Bc5 +=.

7.Nd4 Bg6 =.

7.Bf6 gf6?! 8.d4 =.

7.Bf6 Qf6–/+ 8.d4 bc5 9.bc5 Bc5! 10.Nbd2 (10.dc5 Qa1 Pinning (10...Qa1 Deflection)) 10...Bd6 11.Be2 (11.Rc1 0-0–/+) 11...0-0 12.0-0 (12.Qb3 Qe7–/+) 12...Nd7 13.Nb3 (13.Rc1 e5 14.Rc6–/+) 13...c5 (13...Rac8 14.Rc1–+) 14.dc5 (better is 14.Bb5!? c4 15.Bd7+=) 14...Nc5–+ (worse is 14...Bc5 15.Bb5 Ba3 16.Bd7+=) 15.Nbd4 (15.Qd4 Qe7 16.Rfc1–+) 15...Be5 (better is 15...Be4!?–+) 16.Rc1 Rfc8 (16...Ne4 17.Ne5 Qe5 18.g4+=) 17.Nf5 (17.Ne5 Qe5 18.Nf5 Qf5+=) 17...Qf5–/+ (worse is 17...ef5 18.Qd5 Bc3 19.Nd4 Bd4 20.Qd4 Qd4 21.ed4+=) 18.Nd4 (18.Ne5 Qe5 19.Qd4 Qd4 20.ed4 Na4–/+) 18...Qf6 (18...Qg6 19.f4 Bf6 20.f5–/+) 19.Nb3 (19.f4 Bd6–+) 19...Nb3–+ 20.Qb3 Qe7 (20...Rcb8 21.Qd3–/+) 21.Rc8 (21.f4 Bf6–/+) 21...Rc8 22.Rb1 g6 23.g3 (23.Qd1 Qa3 24.Qd2 Qc3–/+) 23...Kg7 (23...Rb8 24.Qd3–/+) 24.a4 (24.Qa4 Rc3–/+) 24...a5 25.Qb5 Rb8 26.Qd3 Rb1 27.Qb1 Qb4 (27...Qf6 28.Qb5 Bc3 29.Kg2–/+) 28.Qb4 (28.Qd1 d4–/+) 28...ab4 29.a5 Bc7 (29...b3 30.a6 Bb8 31.Kf1–+) 30.a6 Bb6 31.Bd1 Kf6 32.Kf1 Ke5 33.Bc2 (33.Ke2 Kd6–/+) 33...Kd6 34.Ke2 Kc5 (34...Kc7 35.h3–/+) 35.Kd2 Kb5 36.Bd3 Ka4 37.Kc2 (37.g4 b3–/+) 37...Ka3 (37...e5 38.Be2–+) 38.Kb1–/+ e5 39.h3 (39.g4 Kb3–+) 39...Kb3–+ 40.Bb5 d4 41.ed4 ed4 42.f3 (42.g4 Kc3 43.f4 b3–+) 42...Kc3 43.Kc1 (43.h4 b3–+) 43...f5 (43...d3!? 44.Kb1–+) 44.g4 (44.Kd1 d3 45.Bc6 b3–+) 44...f4 (better is 44...b3 45.Kb1–+) 45.h4 (45.Kd1–+) 45...d3 46.h5 gh5 47.gh5 h6 48.Ba4 (48.a7 Ba7 49.Be8–+) 48...Kd4 (better is 48...b3 49.Bb3 Be3 50.Kd1 Kb3 51.a7 Ba7 52.Kd2 Kc4 53.Ke1 Kc3 54.Kf1 d2 55.Ke2 Kc2 56.Kf1 d1Q 57.Kg2 Qg1 58.Kh3 Qg3) 49.Kd2 (49.Bb3 Ke3 50.Bc4 Ba7–+) 49...Kc4 50.Bd1?? (50.Bc6–+) 50...Be3 51.Ke1 b3 0–1. hal1958 – Taxi, playchess.de, 2003.

6.c5 Nbd7

7.a3 a5 =.

7.a4 b6 8.d4 Be7 9.Bd3 Bg4 10.0-0 e5 (10...Rb8 11.Ra2=) 11.Be2 (better is 11.de5!? Ne4 12.cb6 Qb6 13.b5+/–) 11...e4= 12.Nfd2 Be2 13.Qe2 Rb8 14.f3 (14.Bc3!?+=) 14...bc5–/+ 15.dc5 (better is 15.fe4!? de4 16.b5–/+) 15...Rb4–+ 16.Bd4 (16.Bc3 Rb7 17.fe4 Nc5 18.ed5 Qd5–/+) 16...Nc5 17.fe4 de4 18.Nc3?? (better is 18.Na3–+) 18...Rd4 19.ed4 Qd4 20.Kh1 Qc3 21.Rfc1 Qd4 22.Rab1 0-0 23.Rc4 Qe5 24.Nf3 (24.Nf1 Nd5–+) 24...Qf4 (better is 24...Qh5!? 25.Nd4 Qe2 26.Ne2–+) 25.Nd4 e3 (better is 25...Rc8–+) 26.Nc6 Qd6 27.Na7 (27.Qe3 Qc6 28.Qe7 Nfd7–+) 27...Qd3 28.Qd3 Nd3 29.Rc3 (29.Nc6 Bc5 30.Rc2 Ne4–+) 29...Nf2 (29...Ne4 30.Rd3 Nf2 31.Kg1 Nd3 32.Kf1–+) 30.Kg1 Nd5 (30...N2e4!? 31.Rc2 Bc5 32.Nb5 e2 33.Rc5 Nc5 34.Nc3–+) 31.Rc8 g6 (31...Nd3 32.Kf1 Rc8 33.Nc8–+) 32.Rf8 Kf8 33.Nc6 (33.Nb5 Bc5 34.Kf1 Ne4–+) 33...Bc5 34.Kf1 Nc3 (34...Nc3 35.Rb8 Kg7–+) 0–1. Hal1958 – Guigao, playchess.de, 2002.

7.d3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1=.

7.d3 b6 8.b5 =+.

7.d3 Be7 8.Nbd2 a5 9.a3 0-0 10.Nd4 Bg6 11.h4 h6 12.g4 e5 13.Nc2 Re8 14.Be2 e4 15.Nf1 ed3–+ 16.Bd3 Ne4 17.g5= hg5 18.h5 Bh7=+ 19.h6 Bf6 20.Nd4 g6 21.f3+= Nec5 22.bc5 Nc5 23.Kf2 Nd3–/+ 24.Qd3 c5 25.Nh2 Ra6 26.Ng4 Bd4?? 27.ed4+– c4 28.Qd2 Rae6 29.Rhe1 f5 30.Re6 Re6 31.Ne5 g4 32.fg4 Qh4 33.Kg2 fg4 34.Rh1 Qd8 35.Rf1 g5 36.Bc1 Be4 37.Kg3 Rh6 38.Qg5 Qg5 39.Bg5 Rh3 40.Kg4 Ra3 41.Rf7 c3?? 42.Rc7 c2?? 43.Bf6+– c1Q 44.Rc1 Kh7 45.Rc7 (45...Kg8 46.Rc8 Kh7 47.Rh8) 1–0. Gaggiottini,Manfredo – Mariani,Stefano, Perugia op, 1994.

7.d4 Qb8 8.b5 Bg4 9.Nbd2 Ne4 10.Qa4 Nd2 11.Nd2 Qc7 12.bc6 bc6 13.Ba6 g6? 14.Bc3 Nb8+/– 15.f3 Na6 16.Qa6 Bf5 17.g4 Bh6 18.Kf2 0-0 19.gf5 ef5 20.h4 Rfe8 21.Raf1 Re6 22.Qd3?? Rae8?? 23.f4+– Qe7 24.Nf3?? f6?? 25.Bd2+– Re4 26.Rhg1 Kh8 27.Qa6 Re6 28.Qd3?? Re4 29.Rb1 Re6 30.Rge1 Re4 31.Qa6 Qe6 32.Rb7 Bf4 33.ef4 Re1 34.Ne1 g5 35.hg5 fg5 36.Nf3 Qe4 37.Rb3 gf4 38.Qd3 Qe6 39.Ne5 Qh6 (39...Qf6+–) 1–0. Werk,Manfred – Hansult,Manfred, Baden–ch JS Karlsruhe, 2003.

7.d4 Ne4 8.Nbd2 Be7 9.Ne4 Be4 10.Nd2 Bg6 11.b5 Qc7 12.Qb3 e5 13.Be2 0-0 14.0-0. Saplinov – Leiferman, corr, 1967.

7.d4 Bg4 8.Be2 Be7 9.0-0 0-0 10.Nbd2 h6 11.Bc3 Bf5 12.a4 b6 13.a5 bc5 (13...b5 14.Ne5 Ne5 15.de5=) 14.bc5 (14.dc5 Qc7+=) 14...Re8 15.Qa4 Qc7 16.a6 Rab8 17.Rfc1 Ne4 18.Ne4 Be4 19.Nd2 Bg6 20.Nb3 h5 (20...Be4 21.Ba5 Qc8 22.Bb4=) 21.Na5+= Rec8 22.Nb7 Nf6 23.Qd1 h4 24.f3 Qd7 25.Bd3 Bd3 26.Qd3 Ne8 27.Rcb1 Nc7 28.Be1 g6 29.h3 Nb5 30.Ra4 Kg7 31.Bf2 Rf8 32.Rab4 Rh8 0-1. yodagm (2190) - marekt (2155), gameknot.com, 2020.

7.Nd4 Bb1 8.Qb1 Qc7 9.Be2 e5 10.Nb3 Be7 11.Qf5 g6 12.Qh3 h5 13.a4 b6 14.cb6 ab6 15.Bc3 Ne4 Black prepares h4 16.0-0?? (better is 16.a5+=) 16...Ng5–+ (16...Nc3?! 17.dc3 0-0 18.a5=) 17.Qg3 h4 18.Qg4 f5 19.Be5 Ne5 (19...fg4?! 20.Bc7 Ne6 21.Bf4 Nf4 22.ef4=; worse is 19...Qe5 20.Qd4 Qd4 21.Nd4–+ (21.ed4?? Bb4 22.Rfc1 Nb8–+)) 20.Qd4 Bf6 21.Kh1 (21.a5 Nef3! 22.gf3 Bd4 23.ab6 Qb7 24.Ra8 Qa8 25.Nd4 Ke7–+) 21...Ng4 (better is 21...Ne6–+) 22.Qf4 Qf4 23.ef4 Ba1 24.fg5 Bg7 25.a5 ba5 26.Na5 (26.ba5 Kf7 27.h3 Rhe8 28.hg4 Re2 29.gf5 gf5–+) 26...Kd7 27.h3 Ne5 28.f4 Nc4! 29.Nc4 (29.Nc4 dc4 Combination; 29.Bc4 dc4 Combination) 29...dc4 30.Bc4 Ra1 31.Ra1 Ba1 32.Kg1 (32.Bf7 Rb8 33.g3 Rb4–+) 32...Rb8 33.Kf2 Rb4 34.d3 (34.Bf7 Rf4 35.Ke3 Rd4 36.Bg6 Ke6–+) 34...Kd6 (34...Bd4!? 35.Ke2 Rb2 36.Kf1–+) 35.g3 (35.Kf3 Ke7 36.g3 hg3 37.Kg3 Rb1–+) 35...hg3 (35...Rb2!? 36.Kf3 Rh2 37.gh4 Rh3 38.Ke2 Rh4 39.Kf3–+) 36.Kg3 Rc4! 37.dc4 Kc5 38.h4 Kc4 39.h5 gh5 40.Kh4 Kd3 41.Kh5 Ke4 0–1. Williams,Barry M – Steadman,Michael VR, NZCCA HT corr New Zealand, 1998.

7.Nd4 Bg6 8.f4 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 e5 12.fe5 Ne5 13.Be2 Nd3 14.Bd3 Bd3 15.Nf3 Be7 16.Ne5= Ba6 17.d3 0-0 18.0-0 Nd7 19.Rf3 Ne5 20.Be5 Re8 21.Bd4 Bf8 ½–½. Borrmann – Sicker, corr, 1987.

7.Ne5 Ne5=+ 8.Be5 Be7 (8...a5 9.a3=+) 9.Nc3 (9.d4 0-0=) 9...0-0 10.Be2 Nd7 11.Bg3 a5 12.a3 Bf6 13.0-0 e5 14.h3 (14.f3 Re8=+) 14...e4 (14...ab4 15.ab4 Ra1 16.Qa1=+) 15.Bg4 (15.Qc2 Ne5=+) 15...Bg4 (15...ab4 16.ab4 Ra1 17.Qa1 Bg4 18.hg4–/+) 16.Qg4=+ Ne5 17.Be5 Be5 18.f4 (18.Qf5 Qe7=+) 18...f5 Black plans d4 19.Qe2 Bf6 20.Rfc1 (20.d4 ed3 21.Qd3 Re8–/+) 20...d4 21.ed4 (21.Qc4 Kh8 22.ed4 Bd4 23.Kh2 Qd7–/+) 21...Bd4 (better 21...Qd4!? 22.Kh2 Rfd8–+) 22.Kh1 Qf6 23.Qc4 Kh8 24.Ra2 Rfd8 25.Ne2 Bf2 26.Rd1 Rd3 27.b5 (better 27.Nc1!? Rd7 28.Ne2–/+) 27...Qh4 28.bc6?? (better 28.Ng1–+) 28...Rh3! 29.gh3 (29.gh3 Qh3 Mate attack) 29…Qh3 0–1. Abdullaevich (1955) – aungphyominarsam (2095), lichess.org, 2019.

7.Nc3 e5

8.d4 Qc7 9.Be2 Be7 10.0-0 e4 11.Nd2 h5 12.f3 ef3= 13.Bf3 0-0-0 14.b5 Bd3 15.bc6+= bc6 16.Be2 Ng4 17.Nf3 Be4 18.Qb3 Nc5!–/+ 19.dc5 Bf3 20.Ba6 Kd7 21.Qb7 Qb7–+ 22.Bb7 Rb8 23.Rf3 Rb7 24.Nd1 f6 25.Bd4 Rhb8 26.Nc3 Ne5 27.Rff1 Rb4 28.Rab1 Rb1 29.Rb1 Rb1 30.Nb1 Nd3 31.g3 Bc5 32.Nc3 Kd6 33.Kf1 Nb4 34.Ke2 Nc2 35.Kd3 Nd4 36.ed4 Bb4 37.Nd1 Ke6 38.Ne3 Bd6 39.Nf1 h4 40.Ke3 hg3 41.hg3 f5 42.Kf3 g5 43.g4 Bf4 (44.a3 fg4 45.Kg4 Kd6–+) 0–1. Mothes,Rainer – Baumann, corr SOK–88–17, 1988.

8.d4 ed4 9.Nd4. Mothes.

8.d4 e4 9.Nd2 Be7 10.Be2 0-0 11.0-0 Bg6 12.b5 Ne8 13.Qa4 Qc7 14.Rab1 f5 15.bc6 bc6 16.g3 Bf7 17.Nb3 Bd8 18.Bc1 g5 19.Bd2 Ng7 20.Rb2 Be8 21.f4 h6 22.Nd1 a5 23.Nf2 Rf6 24.Rfb1 Rg6 25.Kh1 g4 26.Nc1 Ra7 27.Qd1 h5 28.Qf1 h4 29.Ba6 Nh5 30.Kg2 hg3 31.hg3 Ng3? 32.Kg3+– Bh4 33.Kg2 Bf2 34.Kf2 g3 35.Kg2 Qd8 36.Be2 Rh6 37.Be1 Rh2 38.Kg1 Rh1! 39.Kg2 Rf1 40.Bf1 Nf6 41.Rb7 Rb7 42.Rb7 Ng4 43.Rb3 a4 44.Rc3 Qb8 45.Kg3 Qb2 46.Ne2 Qa2 (47.Bf2 Qb2–+) 0–1. Melich,Jindrich (2160) – Kolesar,Milan (2195), Tatry op Tatranska Lomnica, 1999.

8.d4 e4 9.Nh4 Bg6 (better 9...Be6!? 10.g3 Be7=+) 10.Be2 Be7 11.Qd2 Ng8 (11...Bh5 12.Nf5 Be2 A) 13.Ne7? Bg4–+ (13...Ke7?! 14.Qe2 Re8 15.0-0=); B) 13.Qe2=) 12.Ng6+= hg6 13.b5 f5 14.0-0-0 (14.Rb1!?+=) 14...Ngf6= 15.Kc2 Kf7 (15...cb5 16.Bb5 Qc7 17.h3=) 16.a4 Rc8 17.h3 (17.Rc1 b6=) 17...Nf8 (17...b6 18.bc6 Rc6 19.cb6 Nb6 20.Rb1=+) 18.a5 (18.Rb1 b6 19.cb6 Qb6+=) 18...cb5 (worse 18...Qa5 19.b6 Bc5 20.dc5+=) 19.Nb5 a6 20.Nc3 Ne6 21.Rb1 Qa5 22.Ne4?? (better 22.Kd1=) 22...Qa4–+ 23.Kc1 Ne4 (23...Ne4 24.Bd1 N6c5 25.Ba4 Nb3 26.Kd1 Nbd2–+; 23...de4?! 24.Ra1 Qc6 25.Qa5–+; 23...fe4?! 24.Bc3–+) 0–1. psymar – mgilbert, net–chess.com, 2020.

7.d4 b6

8.Qa4 bc5 9.bc5 Rb8 10.Qa3 Ne4 11.Nbd2 Ndc5 12.dc5 Bc5 13.Qa4 Rb2 14.Ne4 Bb4 15.Ned2 0-0 16.Qa7 Qa8 17.Qd4?? (better is 17.Qa8 Ra8 18.a4=) 17...Qa3–+ 18.Be2 (18.Rd1 Be4 (18...Ra2?! 19.Be2–+) 19.Bb5 c5–+ (19...cb5?! 20.0-0–+)) 18...Bc3 19.Qf4 Rb4 20.Qg5 Ba1 21.0-0 Bf6 22.Qg3 Qa2 23.Rd1 Rb2 24.Bf1 e5! 25.e4 de4 26.Bc4 Qa4 27.Ne5 Qd1 28.Nf1 Rb1 29.Nc6 Be6 30.Ba6 Ra8 (30...Ra8 31.Qa3 Bc4 32.Bc4 Ra3–+) 0–1. Jostov,Keylah – Rudolf,Michal (2220), OP–2009–0-00903, 2009.

8.Qa4 Qc7 9.Nc3 b5 10.Qb3 a5 11.a4 ab4 12.Qb4 ba4 13.Ra4 Rb8 14.Qa3 Qb7 15.Ba1 Ne4 16.Nd2 (better is 16.Ra7 Qc8 17.Qa6+=) 16...Ndf6?? (16...Ndc5!? 17.dc5 Nc5+=) 17.Ba6 (better is 17.Ra7 Qc8 18.Ba6+–) 17...Qc7= 18.f3 Ng5 (18...Nd2 19.Kd2 Be7 20.Be2+=) 19.Ne2 Nd7?? (better is 19...h6=) 20.h4+– Ne4 21.fe4 Be4 22.0-0 Nf6 23.Ne4 de4 24.Rb4 Rb4 25.Qb4 Ng4 26.Rf4 Ne3 27.Qb7 Qb7 28.Bb7 Nd5 (28...f5 29.Bc6 Kd8 30.Be4 fe4 31.Re4 Nd5 32.Re6 Be7+–) 29.Bc6 Ke7 30.Re4 Nf6 31.Re3 g6 32.d5 Bh6 (32...Nd5 33.Bd5 Bh6+–) 33.d6 Kf8 34.Rf3 (34.Rf3 Bg7 35.Ra3+–) 1–0. Glasunov,Johann – Westendorp,Christian (1825), Sparkassen Open, Nettetal GER, 2010.

8.Nbd2 bc5 9.dc5 a5 10.a3 Qc7 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Be2 (11.Nd4 Bg6=) 11…Be7 (11...Qb7 12.Nd4=) ½–½. Melich,Jindrich (2215) – Reischig,Tomas, CZE Czechia–ch, 1994.

8.Nbd2 Be7

9.a4 0-0 10.Nb3 a5–/+ 11.b5 cb5 12.Bb5 bc5 13.dc5 Nc5 14.Nbd4 Bg6 15.Nc6 Qc7 16.Ne7 Qe7 17.Ba3 Rfc8 18.Qd4 Qa7 19.Ne5=+ Nb3 20.Qa7 Ra7 21.Ra2 Rac7 22.0-0 Rc2 23.Ng6 hg6 24.Rb2 Rb2 25.Bb2 Ne4 26.Bd3 Nc3 27.Bc3 Rc3 28.Bb5 g5 29.h3 Kf8 30.g4 Ke7 31.Rd1 Rc1 32.Rf1 e5 33.Rc1–/+ Nc1 34.Kf1 Na2 35.Ke1 Nc3 36.Bc6 Kd6 37.Be8 f6 38.f3 Kc5 39.Kd2 d4 40.Kd3 Nd5 41.ed4 ed4 42.Ke4 Nf4 43.Bb5 Nh3 (44.Kd3 Ng1–+) 0–1. Borrmann,Fritz – Lohr,R, corr SOK–90–56, 1990.

9.Qa4 Rb8 10.Rc1 =.

9.Be2 0-0 10.0-0 a5 11.a3 Ne4 12.Ne4 Be4 13.Nd2 Bg6 14.b5 Qc7 15.cb6 Qb6 (worse is 15...Nb6 16.Rc1+=) 16.a4 Rfc8 17.Nf3 cb5 18.Bb5 Qd8 19.Bd7 (19.Ba3 Ba3 20.Ra3 Rab8=) 19...Bc2+= 20.Qd2 Bb4 21.Qe2 Qd7 22.Rfc1 Ba4 23.Ba3? (better is 23.Ne5 Bb5 24.Qg4 Rc1 25.Rc1–+) 23...Ba3–+ 24.Rc8 Rc8 (24...Qc8?! 25.Qa2–+) 25.Ra3 Rc1 26.Ne1 Qb5 27.Ra2 Qb1 (27...Qb1 28.f3 Re1 29.Kf2 Re2 30.Re2 Bb5–+) 0–1. Koller,Gerald (2030) – Moeschinger,Markus (2475), corr EM/M/174 ICCF Email, 2001. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.c5 Nbd7 7.d4 b6 8.Nbd2 Be7)

9.Be2 a5 10.a3.

9.Be2 a5 10.Ne5 bc5 11.Nc6 Qb6 12.Ne7 Ke7 13.dc5 Qb4 14.Bf6 Kf6 15.c6 =.

9.Be2 a5 10.Ne5 Ne5 11.de5 Nd7 =+.

7.d4 Qc7

8.a4 a6 9.Nc3 Ne4 10.a5 Be7 11.Bd3 Bf6 12.Qc2 e5 13.Ne4 de4 14.Be4 Be4 15.Qe4 0-0 16.0-0-0 Rfe8 17.Qg4 ed4 18.Bd4 Bd4 19.Nd4 Ne5 20.Qg3 Rad8 21.h4 Qd7 22.h5 Qe7 23.h6 g6 24.Nf5 Qe6 25.Nd6 Qb3 26.Qf4 Qc3 27.Kb1 Qb4 28.Qb4 1-0. thehumanlettuce (2015) - y235 (2065), Rated Blitz game, lichess.org.

8.Nbd2 Be7 9.a4 0-0 10.Be2 b6 11.Rc1 (11.Nh4!?=) 11...Rfb8 12.Bc3 bc5 13.bc5 (worse 13.dc5 a5 14.ba5 Bc5 15.Bf6 gf6-/+) 13...e5 14.de5 Ne4 15.Nd4 Nc3 16.Rc3 g6 17.f4 Bc5 18.Nf5 gf5 19.Qc2 Bb4 20.Rc6 Bd2 (better 20...Qa5 21.Bd3 Nc5+/-) 21.Kf2?? (better 21.Kd2!? Qa5 22.Kd1+/-) 21...Qb7 (21...Qa5 22.Rd1 Bb4 23.Qf5=) 22.Rd1 Ba5 23.Rd6 Nf8 24.R6d5 (worse 24.R1d5 Bb4 25.Rb5 Qe7=) 24...Bb4 25.Qf5 Qe7 26.Qg4 Kh8 27.f5 f6 (27...Qc7 28.Qd4 Kg8 29.Bf3 Qc2 30.Kg1 Qf5 31.Rb5+/-) 28.Bc4 Qg7 29.Qg7 Kg7 30.e6 a5 31.R1d4 Rc8 32.Be2 Rc2 33.Rb5 Rac8 (33...Ra7 34.Rg4 Kh8 35.Kf3+/-) 34.h4 (34.Rbb4!? ab4 35.e7+-) 34...R2c7 35.Bh5 Kh8 36.Kf3 Kg7 37.Bf7 h6 38.Kg4 Bc3 39.Rf4 Rc4 (39...Be5 40.Re4 Rc4 41.Kf3 Re4 42.Ke4 Rc4 43.Kd5 Rh4 44.Ra5+-) 40.Rb7+/- Be5 41.Bh5 R4c7 42.Rc4 Rb7 43.Rc8 Bd6 44.Rc6 Ba3 45.e4 Re7 46.Bf7 Rb7 47.Kh5 Be7 48.Rc3 Bd6 49.Rd3 Bf4 50.Rd8 Bg3 51.Ra8 Rc7 52.Ra5 Rc4 53.Kg4 Bd6 54.Kf3 Rc3 55.Ke2 Bb4 (55...Rg3 56.Ra7 Bc5 57.Rc7 Rg2 58.Kd3+-) 56.Ra7 Rc2 (56...Bc5 57.Rc7 Re3 58.Kd2+-) 57.Kf3 (57.Kd3 Rc3 58.Kd4 Bc5 59.Kc3 Ba7+-) 57...Rc3 58.Kg4 Rc4 59.Kf3 Rc3 60.Kg4 Rc4 61.Kh5 Re4 62.a5 (62.Be8!? Kh8 63.g4 Bc5+-) 62...Re5 63.g4 Ra5 64.Rb7 Ba3 65.Bg6 Kh8 (65...Kg8 66.Kh6 Ra4 67.e7 Be7 68.Re7 Rg4 69.h5+-) 66.e7 (worse 66.Kh6 Ra4 67.Kh5 Re4+-) 66...Be7 67.Re7 Ne6 (67...Rd5+-) 68.Re6 Ra7 (68...Kg7+-) 69.g5 hg5 70.Kh6 Ra8 (70...Rg7 71.hg5 fg5 72.f6 Rg8 73.f7 Rf8 74.Re8 Re8 75.fe8Q) 71.Bf7 Rf8 (71...Rd8 72.Re7 Rg8 73.Bd5 Rg6 74.Kg6 gh4 75.Rh7) 72.Re7 Rg8 73.Bb3 Rg6 74.fg6 (74.fg6 gh4 75.g7; 74.Kg6 gh4 75.Rh7) 1-0. yodagm (2190) - kingchecker9 (2285), gameknot.com, 2020.

7.d4 Be7

8.a4 0-0 9.Na3 Ne4 10.Bd3 Ndf6 11.Ne5 Nd7 12.f3 (12.Nd7!? Qd7 13.0-0=) 12...Ne5–/+ 13.de5 Bh4 (better is 13...Bc5 14.fe4 Bb4 (14...Be4? 15.bc5 Bg2 16.Rg1 Qh4 17.Kd2+–) 15.Kf2 de4+=) 14.g3+/– Qg5 (14...a5!? 15.fe4 de4+/–) 15.fe4+– (15.gh4?? Qh4 16.Ke2 Qf2 mate) 15...de4? (better is 15...Qe3!? 16.Qe2 Qe2 17.Ke2 de4+–) 16.Be2 (16.gh4 Qg2 17.Bf1 Qh1=) 16...Bg3 17.hg3 Qg3 18.Kd2 Rfd8 19.Bd4 Rd4 (19...Qe5 20.Kc1 Qc7 21.Nc4+–) 20.ed4 Rd8 21.Kc2 Qe3 22.Nc4 Qf2 23.Nd6 Bg6 24.Ra3 f5 25.Rah3 f4 (25...Qg2+–) 26.R1h2 (26.R1h2 Qh2 27.Rh2+–) 1–0. Koskinen,Kimmo – Peltomaa,Eljas, Uusikaupunki op, 1992. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bf5 4.e3 e6 5.c4 c6 6.c5 Nbd7 7.d4 Be7)

8.a4 b6 9.h3 a5 (9...Rb8 10.Bc3 0-0–/+) 10.ba5? (better is 10.b5 bc5 11.bc6=) 10...bc5–/+ 11.Bc3 Ne4 12.dc5 Nc3 13.Nc3 Qa5 14.Qd2 Nc5 (14...Bc5?! 15.Nd4 Bd4 16.ed4–/+; 14...Qc5?! 15.Be2–/+) 15.Ne2 (15.Nd4 Ne4 16.Nc6 Qc3 17.Qc3 Nc3 18.a5–+) 15…Nd3 (15...Nd3 16.Kd1 Nf2 17.Kc1 Nd3 18.Kd1 Bb4 19.Qd3 Bd3–+) 0–1. Hal1958 – Hubble, playchess.de, 2004.

8.Nc3 0-0 9.Bd3 Ne4 10.Qc2 Ndf6 11.0-0 Nc3 12.Bc3 Bd3 13.Qd3 Ne4 14.Nd2 Nc3 15.Qc3 b5 16.a4+= a6 17.ab5 ab5 (White gets strong play along the open a–file) 18.Ra8 Qa8 19.Ra1 Qb7 20.Qa3 Rc8 21.Qa7 Qa7 22.Ra7 Kf8 23.Nb3 Bd8 24.Kf1 Ke8 25.Ra6 Kd7 26.Na5 Ba5 27.ba5+= Rb8? 28.Rb6?? Kc7+= 29.Ke2 Ra8 30.a6 Rb8 31.a7 Ra8 32.Ra6 Kb7 33.Rb6 ½–½. Jeschke,Holger – Jonathal,Wolfgang, Schleswig Holstein–ch, 1992.

8.Nc3 b6 9.a3 bc5 10.dc5 Qc7 11.Bd3 (11.Nd4 Bg6+=) 11...Bd3+= 12.Qd3 h6 (12...a5 13.Na2+=) 13.0-0= Ne5 14.Ne5 Qe5 15.Rab1 (15.Qe2 Qc7=) 15...Qc7 (15...Ng4 16.g3 Qh5 17.h4 Bh4 18.Kg2–/+) 16.Rfe1 0-0 17.e4 de4 18.Ne4 Nd5 19.g3 (19.Qd4!? f6 20.Nc3 Nc3 21.Bc3+/–) 19...Rad8 20.Qf3 a5 21.Nc3 (21.Qg4 g6=) 21...ab4 22.Nd5 cd5 23.ab4 Rb8? (23...d4 24.Qg4 Bf6 25.Bc1=) 24.Bc3 (24.Be5 Qb7 25.Qg4 g6 26.Bb8 Rb8+–) 24...Bg5 (24...Qc6!?+=) 25.Be5+– Qd8 (25...Qc6!? 26.Qc3+/–) 26.Bb8 Qb8 27.b5 Bd2 (27...Rc8 28.c6+–) 28.Red1 Ba5? (28...Bg5+–) 29.b6 Rc8 (29...Qb7 30.Rb5 Qa6 31.Rdb1 Bb6 32.cb6+–) 30.Qa3 1–0. Fournier,Frederic (1855) – rodrigoalons, Active, 2011.

8.Nbd2 b6 9.Ba6 =.

8.Nbd2 Qc7 9.Be2 0-0 10.Nb3 b6 11.a3 b5 12.Ne5 Ne5=+ 13.de5 Nd7 14.f4 a5 15.Nd4 Be4 16.0-0 ab4 17.ab4 Ra1 18.Ba1 Ra8 19.Bb2 Nb8 20.Qb3 Ra6 21.Ra1 Ra1 22.Ba1 Qa7 23.Bb2 Bb1 24.Qa3 Qb7 25.Qa5 Kf8 26.Bc3 Ke8 27.g4 Be4 28.f5 Bd8 29.Nb5 Qb5 30.Qb5 cb5 31.Bb5 Kf8 32.f6 g5 33.Kf2 Bc7 34.Bd4 Bc2 35.Ke2 Bb3 36.Kd2 Bc4 37.Ba4 h6 38.Ke1 Na6 39.b5 Ba5 40.Kf2 Nc7 41.b6 Nb5 42.Kg3 Nd4 43.ed4+– Ba6 44.Kf3 Bc3 ½–½. Brinkmann,Wilhelm – Heinsohn,Michael, corr BdF (year?).

8.Bd3 Bg4 ½–½. Jeschke,Holger – Lippmann,Kai, Schleswig Holstein–ch cand–B, 1995.

8.Be2 0-0 9.0-0 Qc7 10.Nc3 e5 11.de5 Ne5 12.Ne5 Qe5 13.Qd2 Ne4 14.Ne4 Qe4 15.Bd4 Bg6 16.f4 Qc2 17.Qc2 Bc2 18.f5 Bg5 19.Rac1 Be4 20.a4 a6 21.a5 g6 22.f6 Rfe8 23.Ra1 Bf5 24.Ra3 Re6 25.g4 Be4 26.Raa1 Rae8 27.Rac1 h5 28.h3 hg4 29.hg4 Bh4 30.Rc3 Kh7–/+ 31.Kh2 Rh8 32.Kg1 Kg8 33.Bd3 Bg3 34.Be4 Re4 35.g5 Rg4–+ 36.Rc2 Bh2 37.Kf2–/+ Rg5 38.Rcc1 Bg3 39.Kf3 Rh2–+ 40.Rcd1 Bc7 41.Rg1 Rf5 42.Kg4 Rhf2 43.Rde1 Be5 44.Rd1 Bf6 45.Bf6 Rf6 46.Rg3 Rb2 47.Rd4 Rf1 48.Rf3 Rf3 49.Kf3 f5 50.Rh4 Kg7 51.Kg3 Kf6 52.Rf4 (52.Kf3 g5 53.Rh6 Ke5–+) 0–1. Buss,Michael – Trapp,D, corr USCF, 1986.

8.Be2 0-0 9.Nbd2 Ne4 10.a4 a6 11.0-0 Bf6 12.Qb3 Nd2 13.Nd2 e5 14.f4 ed4 15.ed4 Re8 16.Rae1 h6 17.Nf3 Qc7 18.Ne5 Bh4 19.g3 Be7 20.Bf3 Ne5 21.fe5 Qd7 22.Rf2 Bd8 23.a5 Be7 24.Bh5 g6 25.Bf3 Bf8 26.Ref1 Bg7 27.Bg2 Be6 28.Bc1+/– Kh7 29.h4 Rf8 30.Qe3 Rae8 31.Rf6 Rh8 32.R6f2 Ref8 33.Qd3 Kg8 34.Be3 ½–½. Kjaerstad,Eivind J – Blikeng,Bjarne, corr Norway, 1971.

7.Be2 a5

8.a3 ab4 9.ab4 Ra1 10.Ba1 Qa8 11.Bf6 gf6 (11...Nf6 12.d4=) 12.d4 b5 (12...Qa2 13.Nbd2+=) 13.0-0 Bh6 (13...Bg7 14.Nh4 Bg6 15.Qd2+=) 14.Nbd2 Ke7 (14...Bg7 15.Qa1 Qa1 16.Ra1+=) 15.Nh4 Bg6 16.Nb3 (16.Qb3 Qa4 17.Qa4 ba4+/–) 16...Qa3+= 17.Na5 Nb8 18.Qd2 Kd7 (18...Be4 19.Kh1+=) 19.Ng6 hg6 20.Rb1 Na6 21.Bd1 Ra8 22.Rb3 Qa1 23.Rb2 Nb4 24.Nb3 (24.Qb4 Qd1) 24...Qa3 25.Nc1 e5 (25...Na6 26.Ra2 Qa2 27.Qa2+–) 26.Rb3 (26.Rb4?! ed4 27.Rd4 Qc5+–; 26.Qb4 Qb4 27.Rb4 Ra1–+) 26...Qa1 27.Rb4 (< 27.Qb4 Qc1 28.Qe1 Ra1–+) 27...Ra3 (27...ed4 28.Rd4 f5 29.Rb4+–) 28.Nb3 Qb1 29.de5 fe5 30.Nc1 Qa1 31.Rb2 (31...Ra6 32.Nb3+–) 1–0. Gosme,Emile – Mendosa,Gabriel, IECC, 1998.

8.a3 ab4 9.ab4 Ra1 10.Ba1 b6 11.b5 Nc5 12.Nd4 (12.bc6 Bd6=) 12...Nd3 (12...Qa8 13.Bc3 Nd3 14.Kf1=+) 13.Kf1 (13.Bd3 Bd3 14.Nc6 Qc8=) 13...Bg6=+ 14.bc6 (The passed pawn on c6 will quickly become a dangerous weapon) 14...Bd6 15.Nb5 Bc7 (15...0-0 16.h4 Ne4 17.Bd3 Ng3 18.Ke1 Bd3 19.Qg4–+) 16.N1a3 (16.Qa4 0-0 17.Nc7 Qc7 18.Bf6 gf6=+) 16...0-0=+ 17.h4 h6 18.h5 Bh7 19.Rh3 Be5 (19...e5 20.f4=+) 20.Be5= Ne5 21.c7 Qd7 22.d4 Nc6 23.Qc1 Rc8 24.e4 Ne4 (24...Be4?! 25.Rc3 Nb4 26.Na7=+) 25.Bd3 (25.Rb3 e5–/+) 25...Nb4 26.Be4 Be4 (26...de4!? 27.Rg3 Kh8 28.Kg1–/+) 27.Rb3–/+ Bd3 (27...Na6 28.Rc3–/+) 28.Rd3 Nd3 29.Qd2 Nc5 30.dc5 bc5 31.Qa5 (31.Kg1 Qe7–/+) 31...e5 (31...Qc6 32.Qd2–/+) 32.Qa6 (32.Qb6 c4–/+) 32...c4 (32...Qg4 33.f3 Qd7 34.Nd6 Rc7 35.Qa8 Kh7 36.Qd5=) 33.Nd6 Rc7 34.Qa8 Kh7 35.Qd5 c3 36.Qe5 (36.Kg1 Rc6 37.Nac4 Rc4 38.Qc4 Qd6 39.Qe4 g6–+) 36...Rc6 37.Qe4 ½–½. Pietrzak,Janusz (2200) – Szczepaniak,Alicja (1975), corr 1. AMM Poland, 1992.

8.a3 ab4 9.ab4 Ra1 10.Ba1 Be7 11.Nd4= Bg6 12.f4 (12.0-0 e5 13.Nf3 Qc7=) 12...Qa8 (12...e5 13.fe5 Ne5 14.0-0=) 13.Nc3 Qa3 14.Qa4 Qa4 15.Na4 0-0 (15...Be4 16.Rg1=) 16.0-0 (16.Nc3 Ra8 17.Bb2 e5=) 16...Ra8 17.Nc3 e5 18.Nb3 (18.fe5 Ne5 19.Bb2 Nd3 20.Bd3 Bd3=+) 18...Bc2 (18...ef4 19.Rf4 Bc2 20.Na5 Nc5 21.Rf1–+) 19.fe5= Ne5 (19...Bb3 20.ef6 Bf6 21.Bb2=+) 20.Nd4 Bd3 21.Kf2 Bg6 (21...Ne4 22.Ne4 de4 23.Nf5=+) 22.Bb2 (22.Kg3 Nd3=+) 22...Nd3=+ 23.Bd3 Bd3 24.Ra1 Ra1 25.Ba1 Ng4 (25...Ne4 26.Ke1=+) 26.Kg1 (26.Kg3 Ne5=) 26...Bf6=+ 27.Nd1 (27.Bb2 Bd4 28.ed4 Nf6=+) 27...g6 (27...Be5 28.h3 Nf6 29.Nb3 Ba1 30.Nf2=+) 28.Bc3 (28.Nf2 Nf2 29.Kf2 Be5=+) 28...Ne5 (28...Be5 29.Nf3 f6 30.h3 Bc3 31.Nc3=) 29.Nb2 Ba6 (29...Be4 30.b5=) 30.h3 (30.Kf2 h6=) 30...Kf8 31.Kf2 h5 32.Kg3 Ke8 33.Kf4= Nd7 34.Nf3 Bd8 35.g4 hg4 36.hg4 Bc7 37.Kg5 Be2 38.Nd4 Ba6 39.Nf3 Bf1 40.Kh4 f6 41.g5 Ne5 42.Ne1 fg5=+ 43.Kg5 Kf7 44.Be5 Be5 45.Nbd3 Bf6–/+ 46.Kg4 Be2 (46...g5 47.Kg3–/+) ½–½. Luzuriaga,Norberto Horacio – Steinmann,Joachim, corr or01–002 E–mail, 2001.

8.a3 ab4 9.ab4 Be7 10.Ra8 Qa8 11.Nc3 0-0 (11...b6 12.cb6 Bb4 13.Na4=) 12.0-0 (12.Nh4 b6=) 12...b6 13.cb6 Nb6 14.Qb3 Nbd7 15.Nd4 Bg6 16.Ra1 Qb7 Attacks the isolani on b4 17.Qa4 The backward pawn on c6 becomes a target 17...Bb4 18.Nc6 Bc3 (18...Bc5!? 19.Bb5 Bd3=) 19.Ne7+= Kh8 20.Bc3 Ne4 21.Bb4 Rb8 22.Rc1 Ndc5?? (better 22...Nf8 23.d3 Nf6+=) 23.Bc5+– (23.Rc5?! Nc5 24.Ng6 hg6 25.Bc5 Qb2+–) 23...Nc5 (23...Qb2 24.Qc2 Nd2 25.Qb2 Rb2 26.Ba3+–) 24.Ng6 (24.Rc5?! Qe7 25.Rc1 h6=) 24...hg6 25.Rc5 Ra8 26.Qd1 Qb4 (26...Qb2 27.Rc1+–) 27.d4 Qb2 28.Rc2 (28.Rc2 Qb6 29.Rc1+–) 1–0. Janek – Honza, internet, 2018.

8.a3 b6 9.d4 bc5 10.bc5 g5 11.Nc3 (worse is 11.Ng5 Rg8 12.h4 Rb8+=) 11...h6 12.Nd2 e5 (12...Rb8 13.Ra2+=) 13.0-0 (13.de5!? Rb8 14.Na4 (worse is 14.ef6 Rb2 15.e4 Qf6=) 14...Rb2 15.Nb2 (15.ef6?! Rb8=) 15...Ne5 16.Nb3+/–) 13...ed4= 14.ed4 Bg7 15.Re1 0-0 16.Nf1 Rb8 17.Na4 Ne4 18.Ng3 (better is 18.Ne3!? Bg6 19.Qc1=) 18...Ng3–/+ 19.hg3 (19.fg3? Rb2! 20.Nb2 Qf6–+) 19...Nc5! 20.dc5 (20.Nc5 Rb2 Deflection (20...Rb2 Overloading); 20.dc5 Bb2 Pinning (20...Bb2 Deflection)) 20...Bb2 21.Nb2 Rb2 22.Qd4 Rb8 23.Qa4 Qc7 24.Bg4 Bg6 25.Re3 h5 26.Bf3 g4 27.Be2 Rfe8 28.Qd4 Re3 29.Qe3 Qd7 30.Qf4 Re8 31.Bf1 Qe7 32.Rc1 Qe5 33.Qa4 Qc7 34.Qd4 Re4 35.Qf6 Re6 36.Qc3 Qd8 37.Re1?? (better is 37.Qd2–/+) 37...d4–+ 38.Qd2 Re1 39.Qe1 d3 40.Qd2 Qd5 41.Qd1 Qd4 42.Qc1 (42.Kh2–+) 42...d2 43.Qd1 Bc2!! (43...Bc2 44.Qc2 d1Q 45.Qd1 Qd1–+) 0–1. Fabisch,Christian (2120) – Almer,Gerald (2080), Graz Austria, Steirische Landesliga, 2015.

8.a3 Qc7 9.Qb3 (9.Nc3 b6 10.cb6 Qb6=) 9...Be7 (9...ab4 10.ab4 Ra1 11.Ba1=+) 10.0-0 0-0 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Nd4 (11.Nc3 e5=) 11...Bg6=+ 12.f4 Bb1 (12...ab4 13.ab4 Ra1 14.Ba1=+) 13.Rab1= Rfb8 (13...ab4 14.ab4 b6 15.cb6 Qb6 16.Rfc1=) 14.Qc2 ab4 (14...Rc8 15.Nf3=) 15.ab4+= b6 (15...Ra2 16.Ra1 Rba8 17.Bc3 Ra1 18.Ra1 Ra1 19.Ba1+=) 16.cb6 Rb6 17.b5 c5 (Opening the a–file gets White a lot of play) 18.Nc6 Bd6 19.Ra1 Re8 (19...Qb7 20.Be5 Bf8 21.Ra8 Qa8 22.Bc7=) 20.Ra7 (20.Bc3 Rb7=) 20...Rb7 21.Rfa1 c4 22.Rb7 (22.Bd4 Bc5 23.Bc5 Nc5=) 22...Qb7= 23.Nd4 (23.Ra5 Nb8 24.Bf6 gf6=) 23...Bc5 (23...Nc5 24.d3 cd3 25.Bd3 Nd3 26.Qd3=) 24.d3 e5 25.fe5 Re5 (25...Ne5 26.Nf5 Qb8 27.dc4 dc4 28.h3 Qb5 29.Be5 Re5 30.Bc4=+) 26.dc4+= Re3 27.Kf1 Ne5 28.cd5 Qd5+= 29.Nf5 Neg4 30.Bg4 Ng4=+ 31.Bd4 Nh2 32.Kg1 Bd4 33.Kh1 Qd8 34.Qd2=+ Re4 35.Ra4 Nf1 36.Rd4= Rd4 37.Qd4 Ng3 38.Kh2 Qd4 39.Nd4 Ne4 40.g4 Kf8=+ 41.b6 Nc5 42.Kg3 g6 43.Nc6 Ke8 44.Kf4 f6 45.g5 Kd7 46.Nd4 Ke7 47.Nc6 Kd6–/+ 48.Nd4 fg5 49.Kg5= Kd5 50.Nf3 ½–½. Wolf – Klatt,O, corr, 1976.

8.a3 Be7

9.0-0 0-0 10.Nh4 Bb1 11.Qb1 b6 12.d4 ab4 13.ab4 Ra1 14.Qa1 Qa8 (14...Ne4 15.Nf3=) 15.Nf3 Rb8 16.Qa8 Ra8 17.b5 (better is 17.Ra1 Ra1 18.Ba1=) 17...Nb8 (17...Ra2 18.Rb1 cb5+=) 18.cb6+/– cb5 (18...Ra2 19.bc6 Rb2 20.c7 Rb6 21.c8Q (21.cb8R?! Rb8 22.Rc1 Ba3=) 21...Bf8 22.Ne5+–) 19.Ra1 (better is 19.Bb5!? Ra5 20.Bd3+–) 19…Ra1+= ½–½. Trokenheim,Marek – Berkvens,Joost, IECC, 1996.

9.0-0 ab4 10.ab4 Ra1 11.Ba1 b5 (11...0-0 12.d3=) 12.d3 Bg4 13.Nbd2 (13.Ne5 Be2 14.Qe2 Qc7 15.Nd7 Qd7=) 13...0-0 14.Nd4 Be2 15.Qe2 Qc7 16.f4 Ra8 17.Bc3 (17.N2f3 Ra6=) 17...Bf8 (17...Ra2 18.Qf3=) 18.Ra1 Ra1 19.Ba1 Qa7 (19...Be7 20.Qf3+=) 20.Bc3 Nb8 (20...Qc7 21.Qf3+=) 21.N2b3 Nfd7 22.Qb2 (22.e4 de4 23.de4 Be7+=) 22...g6 (22...Qc7 23.Nf3+=) 23.Na5 (23.Qf2 Bg7+=) 23...Qa8 (23...Qc7 24.Nf3+=) 24.Qa1 Bg7 (24...e5 25.fe5 Ne5 26.Nc2+=) 25.Kf2 (25.Nb5!? Bc3 26.Nc3+/–) 25...e5 26.Nf3 d4 27.ed4 ef4 28.d5 Bc3 29.Qc3 cd5 30.c6 (The passed pawn on c6 will quickly become a dangerous weapon) 30...Nb6 31.Qc5 Qa6 32.Nd4 Na4? 33.c7+– Nc5 34.cb8Q Kg7 35.bc5 Qa5 36.Qb5 Qd2 37.Ne2 Qe3 38.Ke1 f3 39.gf3 Qf3 40.c6 Qh1 41.Kd2 Qh2 42.Qd5 h5 43.Qd4 Kh7 44.Qd7 (44...Qb8 45.Qb7+–) 1–0. Labahn,Wolfgang – Cichecki,H, Beskidy op, 1992.

7.Be2 b6

8.d4 a5 9.b5 bc5 (9...Qc7 10.cb6 Qb6 11.a4+=) 10.bc6+= Nb6 11.0-0 (11.dc5 Bc5 12.Nbd2 Rb8+=) 11...c4 12.Nc3 Qc7 13.Ne5 Bd6 14.Nb5 Qd8 15.Nd6 Qd6 16.Qc1 Ne4 (16...Qc7 17.Ba3=) 17.f3+= Ng5? (better is 17...Nf6+=) 18.e4+– Ne4 (18...Bg6 19.h4 f6 20.Ba3+/– (worse is 20.hg5 fe5 21.de5 Qc5 22.Rf2 de4+=; 20.Ng6?! Nh3 21.Kh1 hg6+=)) 19.Ba3 (19.Ba3 Ng3 20.hg3+– (20.Bd6 Ne2 21.Kf2 Nc1 22.Rfc1 Nc8–/+)) 1–0. Janek – Gustave, internet, 2016.

8.d4 Be7 (8...Rb8 9.Bc3+=) 9.0-0= Qc7 (9...Rb8 10.a3=) 10.h3 (10.Nh4 Be4=) 10...Ne4 (10...a5 11.a3+=) 11.Nbd2 (11.Nc3 a5 12.b5 0-0=) 11...0-0 (11...a5 12.b5=) 12.Ne4 de4 (12...Be4 13.Bc3=) 13.Nd2 Bg6 (13...Rfd8 14.Qc2 Nf6 15.a3=) 14.f3 (14.Qc2 Nf6+=) 14...Nf6 (14...ef3 15.Nf3 e5 16.cb6 ab6 17.de5=) 15.fe4 Be4?? (15...Ne4!? 16.Ne4 Be4=) 16.Ne4 (better is 16.Rf6!? Bg2 17.Rf4+–) 16...Ne4+= 17.Bf3 (17.Bd3 Nf6+=) 17...Ng5 18.Rb1 (18.Rc1 Rab8 19.Rb1 Qg3=) 18...Qg3 (18...a5 19.cb6 Qg3 20.Qe2 ab4 21.Bc6 Ra2 22.b7–/+) 19.Bc6 (19.Qe2 Rac8 20.Kh1 Nf3 21.Qf3 Qf3 22.gf3 Rb8+=) 19...Nh3 (19...Rac8 20.Rf3 Qc7 21.Bb5 Nf3 22.Qf3=) 20.Kh1 Nf2 21.Rf2 Qf2 22.Ba8 Ra8 23.Qf3 Qh4 24.Kg1 Rc8 (24...Rd8 25.Rf1 f5 26.Qf4+=) 25.Rf1 Bf6 (25...Rf8 26.a3+=) 26.Qb7 Rd8 27.Qa7 bc5 (27...Qe4 28.Qa3+=) 28.Qc5 (28.bc5 Qe4 29.Qa3 e5+=) 28...Qe4 (better is 28...Be7 29.Qc7 f5+/–) 29.Bc1 (29.Qc3 Be7+=) 29...Qb1 (29...Rd4 30.Rf6 Rc4=) 30.a4 White prepares b5 (30.Qc7 Re8 31.a3 Qb3+/–) 30...Rb8 31.b5 Qb3 32.Qc7 (better is 32.Qa7 Rf8 33.e4+/–) 32...Rd8?? (better is 32...Rf8+=) 33.b6 (33.Rf6 Rf8 34.Rf1 Qa4+–) 33...Qa4? (better is 33...Re8 34.b7 Rf8+–) 34.b7 (better is 34.Rf6 Rf8 35.Rf1+–) 34...Qa7 (34...Qe8 35.Ba3 Bg5+–) 35.Rf6! Rb8 (35...gf6 36.Qe7 Double attack (36.Qe7 Decoy; 36.Qd8 Remove defender)) 36.Qc8 Rc8 37.bc8Q (37.bc8R?!=; 37.bc8N? Qc7 38.Rf1 Qc8–+) 1–0. Hal1958 – Wernswig, playchess.de, 2005.

8.Nd4 =.

7.Be2 Qc7

8.d4 b6 9.a3 =.

8.d4 Be7 9.Nbd2 Ne4 10.0-0 0-0 11.Ne4 Be4 12.Nd2 Bg6 13.f4 f6 (13...b6 14.Nb3=+) 14.e4 Bf7 (14...de4 15.Qb3 Kh8 16.Bc4=) 15.Qb3 b6 16.Qh3 Rfe8 17.Bd3 Nf8 18.e5 Bg6 19.Bg6 hg6 20.Qf3 (20.Bc3 Reb8+=) 20...f5 (20...Rab8 21.Bc3+=) 21.g4 (21.Bc3!?+/–) 21...a5+= 22.a3 Nd7 23.gf5 (White gets in control) 23...gf5 24.Qh5 bc5 (24...Reb8 25.Rfb1 ab4 26.ab4 Ra1 27.Ba1=) 25.bc5+= (< 25.dc5 Qb7 26.Bc3 ab4 27.ab4 d4 28.Bd4 Qb4=+) 25...Nc5 (25...Reb8 26.Rab1+=) 26.dc5+/– Bc5 27.Kh1 Be3 28.Nf3 Bf4 29.Nh4 Be5 30.Be5 Qe5 31.Rae1 Qf6 32.Nf5 Rf8 (32...Qf5 33.Rf5) 33.Ng3 Qe7 34.Rg1 Rae8 35.Qe5 (35.Qg4!?+=) 35...Qf6= (35...Qa3?? 36.Re3 Qe3 37.Qe3+–) 36.Qc7 Qf3 37.Rg2 Qc3 (37...Qa3 38.Nf5! (38.Qc6?! Qf3+=) 38...Re7 39.Ne7 Qe7 40.Qe7 Rf7 41.Qe6 a4 42.Qh6 Rf1 43.Rf1 a3 44.Rg7) 38.Reg1 Rf7 (38...Qa3 39.Nf5 Qg3 40.Rg3 Rf7 41.Rg7 Kh8 42.Qf7 ef5 43.Qe8) 39.Qd6 c5? (better is 39...Kh7 40.Ne2 Qc4+/–) 40.Nh5+– Qf3? (better is 40...Kh7 41.Rg7 Rg7 42.Rg7 Kh8+–) 41.Ng7!! Rg7 42.Qd7 (42...Rg2 43.Rg2 (43.Qe8?! Kh7 44.Rg2 Qd1 45.Rg1 Qf3 46.Rg2 Qd1 47.Rg1 Qf3 48.Rg2=) 43...Qg2 44.Kg2+–) 1–0. Pedersen – Lund, 1986.

8.d4 h6 9.0-0 Be7 10.Nc3 Ne4 (10...0-0 11.a4=) 11.Ne4 Be4 12.Bd3 (12.Nd2 Bf5=) 12...f5 (12...Bd3 13.Qd3 0-0 14.a4=) 13.Be4 (13.Be2 Bf3 14.Bf3 0-0+=) 13...fe4= 14.Nh4 0-0 (14...Bh4 15.Qh5 g6 16.Qh4+=) 15.Ng6 Rf7 (15...Rfe8 16.Qg4 Bf6 17.f3 ef3 18.Rf3=) 16.Qg4 Nf8 17.Ne5 Rf5 18.f3 ef3 19.Rf3 (19.gf3?? Rg5–+) 19...Rf3 20.Nf3 Bf6 (20...a5 21.a3+=) 21.a4 (21.e4 de4 22.Qe4 Rd8+=) 21...Qf7= 22.Re1 Qg6 (22...a5 23.ba5 Nd7 24.Rf1+=) 23.Qg6 Ng6 24.e4 (24.b5 cb5 25.ab5 a5=) 24...Rf8 (24...Nf4 25.e5 Be7 26.Bc3+=) 25.g3 (25.e5 Bh4 26.Nh4 Nh4+=) 25...Bd8 (25...b6 26.ed5 ed5 27.cb6 ab6 28.Rc1=) 26.Kg2+= Kf7 27.b5 Bc7 28.Bc1 Re8 29.h4+/– Nf8 30.e5 Nh7 31.Rf1 Kg8 32.Bd2 Rf8 33.g4 Bd8 34.bc6 bc6 35.Rb1 g5 36.h5 (White fights for the Initiative) 36...Kg7 37.Rb8 Kg8 38.Rc8 Be7 39.Rc7 Kf7 40.Ra7 Rc8 41.Be1 Nf8 42.Bb4 Ke8 43.Kg3 Rb8 44.Bd2 Nd7 45.Kg2 (better is 45.Rc7!? Bc5 46.Rc6 Be7 47.Re6 Rb6 48.Rb6 Nb6+–) ½–½. pierre – mulengae, chess.com, 2007.

8.Nd4 Bg6=+ 9.f4 (9.0-0 b6 10.cb6 ab6=) 9...e5 (9...b6 10.cb6 Qb6 11.Bc3=+) 10.fe5= Ne5 11.0-0 Nd3 (11...a5 12.a3=) 12.Bd3 Bd3 13.Re1 (13.Rf4 a5 14.a3 ab4 15.ab4 Ra1 16.Ba1 b6=) 13...Be7 14.Nc3 (14.Qf3 Qd7=+) 14...0-0 (14...b6 15.Na4=+) 15.Nce2= Ne4 (better is 15...a5!? 16.Nf4 Ba6=) 16.Nf4 Ba6 17.b5 (17.d3 Nf6+/–) 17...Bb5+= 18.Nb5 cb5 19.Nd5 (19.Qg4 Nf6 20.Bf6 Bf6 21.Nd5 Qd8 22.Nf6 Qf6+=) 19...Qc5 (19...Qd7!? 20.Ne7 Qe7=) 20.Qg4+= Ng5 21.Ne7 (better is 21.Qd7!? Rfe8 22.Rac1+= (< 22.Qb7 Rad8 23.Ne7 Re7=+)) 21...Qe7=+ 22.Bc3 (22.d3 f5 23.Qd1 Qf7=+) 22...Rfe8 (22...Rfc8 23.Rf1=+) 23.Rf1 (23.Rec1 Rad8=+) 23...Ne6 (23...f6 24.Qe2=+) 24.Rf3 (24.Rf5 Rac8 25.Raf1 Rc4=) 24...Qg5 25.Qh3 (25.Qe4 Nc5 26.Qb4 Ne4=) 25...Qc5 26.Raf1 (26.Rf5!? Qc4 27.a3=+) 26...Ng5–/+ 27.Qg4 Nf3 28.Rf3 g6 29.Qf4? Qe7 30.Qd4=+ f5?? 31.Qh8+– Kf7 32.Qh7 Ke6 33.Qg6 (33...Kd7 34.Rf5+– (34.Qf5?! Qe6+–)) 1–0. Wall,Bill – Aker,Cliff, corr, 1987.

8.Nh4 Bb1 9.Qb1 (9.Rb1 b6=) 9...Be7 (9...b6 10.d4=) 10.f4 (10.0-0 a5 11.a3 ab4 12.ab4 0-0=) 10...b6 11.cb6 Qb6 12.Bd4 (12.a3 Rb8=+) 12...Qb4 13.Qc2 c5 14.Rb1 Qa5 (14...cd4?! 15.Rb4 Bb4 16.ed4=) 15.Ba1 (15.Bc3 Qc7–/+) 15...0-0 16.Nf3 Rab8 (16...Rfb8 17.0-0–/+) 17.0-0 Rb1 18.Rb1 Rb8 (18...c4 19.Bc3 Qc7 20.Ne5–/+) 19.Rb8 Nb8 20.Ne5 (20.Bc3 Qb6–/+) 20...Ne4 21.Qb2? (21.Nc4 dc4 22.Qe4 Qd2–/+ (22...Qa2?! 23.Bc3 Nd7 24.Bc4=+)) 21...Qb6?? (better is 21...Qd2 22.Qd2 Nd2–+) 22.Qc2 Qb4 23.Nf3 Nd7 24.d3 Nd6 25.Bc3 Qa3 26.e4 Nb5 27.Bd2–/+ Bf6 28.e5 Bd8 29.Qb3 a6 30.Qa3 Na3 31.Bc1 Nb5 32.Bb2 Ba5 33.a4 Na7 34.Kf1–/+ Bb4 35.Bd1 Nc6 36.Ne1? Nb6 37.Ke2 c4 38.dc4 dc4–+ 39.Nf3 Nd5 40.g3 Bc5 41.Kd2 Ncb4 42.Nd4? Na2–+ 43.Be2 c3 (44.Bc3 Nac3–+) 0–1. Furlong,Kevin – Devereaux,Maxim (2215), Oxford op, 1998.

7.Be2 Be7

8.0-0 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 0-0 =.

8.0-0= b6 9.d4 (9.Nd4!? Qc7 10.Nf5 ef5 11.cb6 ab6 12.b5+=) 9...0-0= 10.Nbd2 (10.Nh4 Be4=) 10...bc5 (10...a5 11.a3=) 11.dc5= Rb8 (11...a5 12.a3=) 12.Bc3 (12.Nd4 Qc7 13.Nf5 ef5+=) 12...Ne4 13.Ne4 Be4 14.Nd4 Qc7 15.Qa4 Bf6 16.Rac1 Bd4 (16...Ne5 17.f3 Bg6 18.f4+=) 17.Bd4 a5 (17...e5 18.Bc3=) 18.ba5 (18.Qa5 Qa5 19.ba5 e5+=) 18...Ra8 (18...e5 19.Bc3=) 19.a6 e5 20.Ba1 Bg6 (20...Rfb8 21.f4=) 21.Rc3 (21.f4 f6+=) 21...Rfb8= 22.Rfc1 Ra7 23.Rb3 f6 (23...Be4 24.f3 Bf5 25.e4+=) 24.Qg4+= Qa5?? (24...Rb3 25.ab3 Kh8+/–) 25.Rb8+– Nb8 26.Qc8 Kf7 27.Qb8 (27...Qc7 28.Qc7 Rc7 29.Rd1+–) 1–0. Gross,Wilhelm – Merten,Rainer, xxi/14, 1991.

8.d3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 0-0 (11...b6 12.Nd4 Qc7 13.Qa4=) 12.0-0 (12.Nh4 Bg6=) 12...Qc7 (12...b6 13.Nd4 bc5 14.Nc6+/– (< 14.Nf5 ef5 15.bc5 Bc5=+)) 13.Nbd2 (13.Nh4 Bg6+=) 13...Ra8 (13...b6 14.cb6 Qb6 15.e4=+) 14.Qb3 (14.Nh4 b6 15.Nf5 ef5=) 14...Ng4 (14...b6 15.cb6 Qb6 16.Bc3=+) 15.h3 (15.e4 Bg5=) 15...Ngf6 16.Nh4 Bg6 17.Ng6 hg6 18.f4 (18.Bd4 e5 19.Ra1 Ra1 20.Ba1 b6=) 18...Nh5 (18...b6 19.d4=) 19.Bh5 (19.Qc3 Bf6 20.d4 Ng3=+) 19...gh5= 20.Nf3 Bf6 (20...b6 21.Qc3 Bf6 22.Ne5=) 21.Nd4 (21.Bf6 Nf6 22.b5 b6 23.bc6 bc5=) 21...e5 (21...b6 22.Qc2=) 22.fe5 Qe5 23.Nc2 Qg5 24.Bf6 Nf6 25.b5 ½–½. Gross,Wilhelm – Merten,Rainer, 1991.

8.d3 h6 9.Nh4 Bh7 10.f4 (10.0-0 b6=) 10...g5 (10...b6!?–/+) 11.Nf3= Rg8 12.fg5 hg5 13.Ne5 Qc7 14.Nd7 Kd7 15.0-0 Qd8 (15...Rg6 16.e4=) 16.Rf2 (16.e4 Ke8 17.e5 Nd7+=) 16...Bg6 (16...g4 17.Qf1 Rg6 18.Be5=) 17.Nd2 g4 18.g3 Nh7 19.e4 f5 20.ed5 ed5 (20...cd5!? 21.Qa4 Kc8=) 21.Bg4!+/– Rf8 (21...fg4 22.Qg4) 22.Bh5 Qe8 23.Be2 Bg5 24.Nf1 Qe7 (24...f4 25.Bg4 Kd8 26.Re2+/–) 25.Bd4 (25.h4 Bf6 26.Rb1 Kc8+/–) 25...Rae8 26.a3 (26.Qa4 Bf6 27.Bf6 Qf6+/–) 26...Bh6 (26...f4 27.h4 Bf6 28.Bf6 Nf6 29.gf4=) 27.Ra2 (27.Qa4!? a6 28.Re1+/–) 27...Ng5+= 28.Kg2 Qe6 (28...Ne6 29.Bh5 Qg5 30.Bg6 Qg6 31.Be5=) 29.b5 (29.h4 Nf7+/–) 29...cb5 30.h4 Nf7 31.Rc2 (31.Qb3!?+/–) 31...Ne5 32.Be5 Qe5 33.d4 Qe7? (better is 33...Qe4 34.Bf3 Qe6+=) 34.Bb5+– ½–½. Gross,Wilhelm – Merten,Rainer, xviii/14, 1989.

8.d4 0-0 9.0-0 =.

8.d4 a5 9.b5 0-0 (9...cb5 10.Bb5 b6 11.c6+–) 10.Nc3 (10.0-0 cb5 11.Bb5 b6+=) 10...cb5 11.Nb5 h6 (11...b6 12.c6 Bb4 13.Bc3 Bc3 14.Nc3=) 12.0-0 Ne4 13.Rc1 Qb8 (13...e5 14.Qb3 Be6 15.Bd3+=) 14.Bd3 Rc8 15.Qc2 Bf6 16.a4 Be7 17.h3 Bg6 18.Rb1 b6 19.c6 (The passed pawn on c6 will quickly become a dangerous weapon) 19...Bd6 20.Rbc1 Bb4 21.c7 Qb7 22.Ba3 Ba3 23.Na3 Bh7 24.Nb5 Qa6 (24...Bf5 25.Qb3 Nec5 26.dc5 Nc5 27.Rc5 bc5 28.Bf5 ef5 29.Qc2+–) 25.Qc6 (25.Nd6 Nd6 26.Ba6 Bc2 27.Bc8 Ba4+/–) 25...Ndf6 26.Ne5 Nd2 27.Bh7 Nh7 (27...Kh7 28.Rfd1 Nfe4 29.f3+–) 28.Rfd1 Nc4 (28...Nb3 29.Rc3 Nd4 30.Nd4 Nf6+–) 29.Nc4+– dc4 30.Rc4 (30.Nd6 Rf8+–) 30...Nf6 31.Nd6 Qa7 32.Qf3 Qa6 33.Rdc1 Kf8 34.Qc6 Ne8 35.Nc8 Rc8 36.Qd7 Nf6 37.Qd6 Ke8 38.Rc6 Nd7 39.Qg3 g6 40.Qg4 Nf8 41.Qe4 Qa7 42.d5 Kd7 43.Qd4 ed5 44.Qd5 Ke8 45.Qe5 Ne6 46.Re6! fe6 47.Qe6 Kf8 48.Qc8 Ke7 49.Qd8 Kf7 50.Qd7 Kf6 51.Rc6 Kg5 52.Qg4# 1–0. Psion – Psion, 1989.

8.d4 h6 9.Nbd2 Qb8 (9...0-0 10.0-0=) 10.0-0 0-0 11.Qb3 Bd8 (11...Qc7 12.a4=) 12.b5 Bc7 13.a4 Re8 14.Rfe1 (14.Qc3 e5 15.de5 Ne5+=) 14...Ne4 15.g3 (15.Red1 Ndf6 16.Ne4 Ne4=) 15...Ndf6 16.Bc3 Nf2 (better is 16...b6 17.Ne4 Ne4=) 17.Kf2+/– Ng4 18.Kg2 (better is 18.Kg1+/–) 18...Ne3= 19.Kf2 (19.Kh1 Nc2=) 19…Ng4 (19...Nc2 20.b6 ab6 21.cb6–/+) ½–½. Alberts,Hendrik Jan (2165) – Zimmermann,Rolf (2185), Kiekrz op, 1995.

8.Nd4 0-0 =.

8.Nd4 Bg6 =.

8.Nh4 Bg6 9.f4 Ne4 10.Nf3 0-0 11.0-0 Bf6 12.Nd4 e5 13.fe5 Be5 (< 13...Ne5 14.d3 Nc5 15.bc5+/–) 14.Nc3 (14.d3 Ng5=) 14...Qc7=+ 15.Nf3 Nc3 16.Bc3 Bc3 17.dc3 Rae8 18.Qd2 Nf6 (Black gets deadly initiative) 19.Rae1 Ng4 20.Bd1 Be4 21.h3 (21.Bb3!?–/+) 21...Bf3–+ 22.hg4 Bd1 23.Qd1 Re4 24.Rf5 Qg3 (25.Qe2 Rg4–+) 0–1. Gross,Wilhelm – Merten,Rainer, xix/02, 1989.

8.0-0 0-0

9.a4 Qc7 10.d4 b6 11.h3 bc5 12.bc5 Rab8 13.Bc3 (13.Qc1 Ne4+=) 13...Ne4–/+ 14.Nfd2 Ndf6 (14...Nc3 15.Nc3 Bf6 16.Qc1–/+) 15.Ne4 Ne4 (15...de4?! 16.Nd2=) 16.Bd3? (better is 16.Be1–/+) 16...Rb1!–+ 17.Qb1 (17.Rb1 Nc3 Double attack (17...Nc3 Decoy; 17...Nc3 Remove defender); 17.Qb1 Nc3 Remove defender; 17.Bb1 Nc3 Double attack (17...Nc3 Decoy; 17...Nc3 Remove defender)) 17...Nc3 18.Qc2 Bd3 19.Qd3 Ne4 20.Rab1 Bh4 (better is 20...e5!?–+) 21.Qa6–/+ Bf2 (better is 21...Ra8–/+) 22.Rf2= Nf2 23.Kf2 Qc8 (23...e5 24.Rb7 Qc8 25.de5 (worse is 25.Qa7 Qf5 26.Kg1 Qd3–/+) 25...Qf5 26.Kg1 Qe5 27.Qc6 Qe3 28.Kh2 Qe5 29.Kg1 Qd4 30.Kh1 Qa1 31.Kh2 Qe5 32.Kg1 Qe3 33.Kh2 Qf4 34.Kg1 Qe3=) 24.Qa7 g6 (24...e5 25.Kg1 ed4 26.ed4+=) 25.a5+= Kg7? (better is 25...e5!? 26.Kg1 Qd8+/–) 26.a6+– Qa8? (better is 26...e5 27.Qb7 Qf5 28.Kg1 ed4 29.ed4 Qd3+–) 27.Qa8 Ra8 28.Rb6 Rc8 29.a7 Ra8 30.Rb7 Kf6 31.Kf3 g5 32.g4 Kg6 33.e4 (33.Rc7 h5+–) 33...h6? (33...de4 34.Ke4 f5 35.Ke5+–) 34.e5 f6 (34...f5 35.ef6! Kf6 36.Rc7+–) 35.ef6 (better is 35.Re7!? Rf8 36.Re6 Ra8 37.Rc6 Ra7 38.Rf6 Kh7+–) 35...Kf6 36.Kg3 (better is 36.Rc7!? Kg6+–) 36...e5 37.de5?? (better is 37.Rc7 ed4 38.Rc6 Ke5 39.Ra6+–) 37...Ke5= 38.Rc7 Ke4 39.Rc6 Ra7 40.Rh6 Ra3 41.Kf2 Rc3 42.c6 Rc2 43.Ke1 Kd3 44.Rd6 d4 45.Kd1 Rh2 46.Ke1 Rh3 47.c7 Rh8?? 48.Rd8+– Rh1 49.Kf2 Rc1 50.c8Q Rc8 51.Rc8 Kd2 52.Rc5 d3 53.Rg5 Kc3 54.Rd5 Kc4 55.Rd8 Kc3 56.Ke3 (56.Ke3 Kc4 57.g5 Kc5 58.g6 Kc6 59.Rd3 Kb6 60.g7 Kb5 61.g8Q Kb6 62.Qb3 Kc6 63.Qc4 Kb6 64.Rb3 Ka5 65.Qb5) 1–0. Hal1958 – Jule, playchess.de, 2005.

9.Qb3 b6 10.d4 Qc7 11.Nbd2 Rfb8 12.a3 (12.Qc3!?+=) 12...bc5–/+ 13.dc5 Nc5! 14.Qc3 (14.bc5 Rb3 Pinning (14...Rb3 Deflection)) 14...Na4–+ 15.Qb3 Nb2 16.Qb2 a5 17.Rfc1 (better is 17.b5–+) 17...ab4 18.ab4 Ra1 19.Ra1 Bb4 20.Qa2 c5 21.h3 Ne4 22.Ne4 Be4 (22...de4?! 23.Nh4–+) 23.Ng5 Bg6 24.Nf3 c4 0–1. Frank,Volkmar – Lehmann,Ruben, Mecklenburg VP LL2 Ost, 2007.

9.d3 Bg4 10.Ne5 Be2 11.Qe2 Ne5 12.Be5 =.

9.d3 h6 10.Nbd2 a5 11.a3 =.

9.d3 h6 10.Nbd2 Qc7 11.Qb3 (11.Qc2 e5=) 11...Rfe8 (11...b6 12.cb6 ab6 13.Nd4=) 12.d4 (12.Qc3 a5 13.a3 ab4 14.ab4 b6=) 12...Ne4 (12...b6 13.Qc3=) 13.a4 (13.Ne4 Be4 14.a3 b6=) 13...Bf6 (13...Nd2 14.Nd2 b6 15.a5=) 14.Ne4 Be4 15.b5 e5 16.a5 (16.Ne5 Be5 17.de5 Nc5=) 16...cb5 (16...ed4 17.Bd4 Bd4 18.ed4=) 17.Qb5 Rab8 (17...ed4 18.Bd4 Rac8 19.Bf6 Nf6 20.Nd4=) 18.Rfc1 Bf5 (18...Qc6 19.Ne5 Ne5 20.de5 Be5 21.Be5 Re5 22.a6=) 19.Ne5 a6 (19...Ne5 20.de5 Be5 21.Be5 Re5 22.Bd3+=) 20.Qb3+= Ne5 21.de5 Be5 22.Be5 Qe5 (22...Re5 23.f4 Re6 24.Bf3=) 23.Ra4 Bd7 (23...Be4 24.Rb4+=) 24.Rd4+/– Bc6 (24...Qc7 25.Qb6 (25.Rd5?! Be6=) 25...Qc6 26.Rb1+/–) 25.Bf3 Rbd8 26.Rcd1 Qg5 (26...Qf6 27.Bd5 Bd5 28.Rd5 Rd5 29.Qd5+/–) 27.Bd5 Bd5 28.Rd5 Rd5 29.Qd5 (29.Rd5 Qf6+/–) 29...Qd5 30.Rd5 Rc8 (30...Re4 31.Rd4 Re5 32.Rd8 Kh7 33.Rc8+/–) 31.Kf1 Kf8 32.Ke2 Ke7 33.Kd3 Rc6 34.Kd4 Rg6 (34...g6 35.e4+–) 35.g3 Rc6 36.f4 g6 (36...Ke8 37.Rd6+–) 37.e4 Rc7 38.Rd6 Rd7 (38...h5 39.e5+–) 39.Rd7 Kd7 40.Kd5 Kc7 41.g4 (41...Kd7 42.e5+–) 1–0. Skonieczny,Jerzy – Sternik,Ryszard, corr 2. AMM, Poland, 1994.

9.d3 h6 10.Nd4 Bg6 +=.

9.d4 b5 10.a4+= a6 (10...ba4 11.Qa4 Qc7 12.Nc3+=) 11.Nbd2 Ne4 12.Nb3 (12.Qb3 Nd2 13.Nd2 Nf6+=) 12...Bg6 (12...Bg4 13.Qc2+=) 13.Na5 (13.Ne5 Ne5 14.de5 h6+=) 13...Qc7= 14.Ne1 f5 (14...Nef6 15.Nd3+=) 15.f3 (15.Nd3 Rac8+=) 15...Ng5 (15...Nef6 16.Nd3+=) 16.Nd3+/– Bf6 (16...Rae8 17.Nf4 Bf7 18.ab5 ab5 19.h4+=) 17.Qd2 (better is 17.Nf4!?+–) 17...Nf7 (17...Rae8 18.Ra2+=) 18.f4 (18.Nf4 Rae8+/–) 18...Nd8 (18...Bd8 19.Ne5 Nfe5 20.fe5+/–) 19.Ne5 (19.Nb3 Be7+/–) 19...Ne5 20.de5 Be7 21.Nb3 Nb7 22.Nd4 (22.Ra3 Rfb8+/–) 22...Bf7 23.Ra2 (better is 23.Bc3+/–) 23...g5? (better is 23...ba4 24.Ra4 a5+=) 24.ab5 (24.Rfa1 ba4 25.Ra4 a5+–) 24...ab5 25.Ra8 Ra8 26.Qc3 (26.Nf5 Bg6 27.Nd6 Ra2+–) 26...gf4 27.ef4 Nd8 (27...Ra4 28.Nf5! ef5 29.e6+–) 28.Nf5! Bg6 (28...ef5 29.e6) 29.Nd6 (29.Ne7!? Qe7 30.f5 Be8+–) 29...Nf7?? (better is 29...Bf8+–) 30.f5 (30...Bf5 31.Rf5+–) 1–0. Wittstock,Guenter – Koehler,Guenther, corr DDR–ch H, 1985.

9.d4 b6 10.Nc3 bc5 11.bc5 Rb8 12.Qd2 Ne4 13.Ne4 de4 14.Ne1 Nc5! 15.Qc2 (15.dc5 Qd2) 15...Nd3 16.Bd3 ed3 17.Qd2 c5 18.Bc3 (18.Rc1 cd4 19.Bd4 f6–/+) 18...cd4 19.Bd4 Bb4 20.Bc3 Bc3 21.Qc3 Qd6 22.Nf3 Rfc8 23.Qd4 Qd4 (24.Nd4 Rb2–+) 0–1. Coleslaw – 9ras, ChessWorld.net, 2002.

9.d4 b6 10.Nh4 Bg4 =.

9.d4 Qc7 10.Nbd2 Ne4 11.Nb3 Bg6 12.Ne5 f5 (12...Ne5 13.de5 f6 14.f3=) 13.f3 (13.Ng6 hg6 14.f3 Nef6+/–) 13...Nef6 (13...Ne5 14.de5 Ng5 15.a3+=) 14.Rc1 Bf7 15.Kh1 Kh8 16.Bd3 Ne5 17.de5 Nd7 18.f4 b6 19.g4 (19.Bd4 bc5 20.Nc5 a5=) 19...g6 (19...bc5 20.bc5 Rab8 21.Ba3=) 20.Bd4 bc5 21.bc5 Bg8 22.Rg1 a5 23.gf5 ef5 24.h4 Be6 25.h5 Rg8 26.hg6 hg6 (< 26...Rg6 27.Qh5 Rag8 28.Rg6 Rg6 29.Rg1 Rg1 30.Kg1+/–) 27.Qf3 Kg7 28.Rg6 Kg6 29.Rg1 Kf7 30.Qh5 Kf8 31.Qh6 (31.Rg8 Bg8 32.Qf5 Ke8–/+) 31...Kf7 (31...Ke8!? 32.Qh5 Kd8 33.Rg8 Bg8–/+) 32.Qh5= Kf8 33.Rg8 Bg8 34.Bf5 a4 (34...Qb7 35.e6 Nf6 36.Qh6 Ke8 37.Qg6 Kd8 38.Bf6 Bf6 39.Qg8 Kc7 40.Qf7 Kb8 41.Qf6 Qb5+–) 35.Qh8?? (35.e6 Nf6 36.Qh6 Ke8 37.Qg6 Kd8 38.Bf6+–) 35...ab3 (35...Ke8!? 36.Qg8 Nf8+/–) ½–½. Dzieniszewski,Andrzej – Jonczyk, Jelenia Gora Poland, 1985.

9.d4 Qc7 10.h3 h6 11.Nc3 e5 12.de5 Ne5 13.Ne5 Qe5 14.Qd4 Qd4 15.ed4 Rfe8 16.Rfe1 Bf8 (16...Ne4 17.g4 Bg6 18.Ne4 Be4 19.b5+=) 17.Bf3 Ne4 18.Be4 Be4 19.Re3 (19.Ne4 de4 20.Bc3=) 19...g5 (better is 19...Bc2+=) 20.Rae1+= f5 21.f3 f4 22.R3e2?? (better is 22.Ne4 fe3 23.Nf6 Kf7 24.Ne8 Re8 25.Kf1+=) 22...Bg6–/+ 23.a4 Re2 24.Re2 Bg7 25.Na2 Kf7 26.Nc1 a5 27.b5 cb5 28.ab5 a4 29.Bc3 a3 30.Ra2 (30.b6 Bf5 31.Ra2 Ra6–+) 30...Bb1 31.Ra1 a2 32.c6 bc6 33.b6 Rb8 34.Na2 Ba2 35.Ra2 Rb6 36.Ra7 Kg6 37.Rc7 Bf6 (37...Rb1 38.Kh2 Rc1 39.Rc6 Kh5 40.Rc5–+) 38.Kf2? (better is 38.Kh1–/+) 38...Rb3–+ 39.Ba1 Ra3 (39...Ra3 40.Bb2 Ra2–+) 0–1. Hal1958 – Simon, playchess.de, 2002.

9.Nd4 Bg6 10.f4 a5 11.a3 =.

9.Nd4 Bg6 10.f4 Qc7 11.Nf3 b6=+ 12.d4 (12.cb6 Qb6 13.a3 c5=+) 12...a5 13.a3 ab4 (13...Rfb8 14.Qd2=+) 14.ab4=+ Ra1 15.Ba1 bc5 (15...Ne4 16.Nc3=+) 16.dc5 (16.bc5 Ra8 17.Nc3 Bf5=+) 16...Ra8 (16...Rb8 17.Ne5 Bb1 18.Qb1 Bc5 19.Qd3 Bb4 20.Rb1–+) 17.Qd4 (17.Nc3!?=+) 17...Ra4–/+ 18.Bc3? (better is 18.Qc3!?–/+) 18...Bc5!–+ 19.Qd2 (19.Qc5 Nc5) 19...Bb6 (19...Ne4!? 20.Qc1 Nc3 21.Nc3 Rb4 22.Rf2–+) 20.Nd4 (20.Bd4 Ne4 21.Qb2 Qd6–+) 20...Ra8 (20...Ne4 21.Qe1–+) 21.Rc1 (21.f5 Ne4 22.Qd3 ef5–+) 21...c5 (21...Ne4 22.Qd1–+) 22.Nb3? (better is 22.Nb5 Qd8 23.bc5 Nc5 24.Nd4–+) 22...cb4?? (22...Ne4 23.Qd3 c4–+ (23...Nc3?! 24.Qc3 Bb1 25.Rb1–+)) 23.Bf6= Qc1 24.Qc1+/– Nf6 25.Nd4 h6 26.Nd2 Ra3 27.N2b3 Ne4+/– 28.h3 Nc3 29.Bf3 Bd8 30.Kh2 Bf6 31.Nc5 Bd4 32.ed4+– Bb1? 33.Qb2 Ra5 34.Qb4 (34...Rc5 35.dc5+–) 1–0. Frosinos,Ioannis – Mourouti,Paraskevi, Patras op 3rd, 2001.

9.Nd4 Bg6 10.f4 Qc7 11.f5 ef5 12.Nf5 Bf5 13.Rf5 b6 14.cb6 ab6 15.Rf4 (15.b5 c5=) 15...c5 (15...Bd6 16.Rh4=+) 16.bc5 (16.Nc3 cb4 17.Nb5 Qb7=) 16...bc5 17.Qc2 (17.Nc3 c4=) 17...Rfb8 18.Nc3 Rb4 (18...c4 19.Rf5 Ra5 20.Kh1=) 19.Nb5 Qb6 20.Rb4 cb4 21.Bd3 (21.a3 ba3 22.Na3 Ne4=) 21...h6 (21...Qb7 22.a4=) 22.Nd4 (22.a3 ba3 23.Na3 Nc5=) 22...Nc5 (22...Bd6 23.Bf5=) 23.Nf5 (23.Bb5 Ne6 24.Nf5 Bc5=) 23...Bf8 (23...Qe6 24.Ne7 Qe7 25.Bf5=) 24.Bd4+= Qa5 (24...Nfd7!?+=) 25.Nh6!+/– gh6 26.Bf6 Nd3 27.Qd3 Ra6 (27...Qa6 28.Qd4+/–) 28.Bb2 Qa4? (better is 28...Rg6!?+/–) 29.Qd4+– f6 30.Qd5 Kg7 31.Qb7 (31.Rf1 Be7+–) 31...Kg8 32.Qd5?? (32.Qc8 Qc6 33.Qg4 Kf7 34.Bf6 Qe6+–) 32...Kg7 33.Qb3 Qd7 34.Bd4 Ra3 35.Qc4 Qf5? 36.Rf1 Qa5 37.Rf6 Kh7 38.Qf7 Bg7 39.Rg6 Ra2 (39...Qc7 40.Rg7 Kh8 41.Qg8) 1–0. Neuwald,Volker – Henninger,Michael, Baden–ch HT2, 2003.

9.Ne5 Ne5=+ 10.Be5 Nd7 11.Bb2 e5 (11...b6 12.d4=+) 12.f4= ef4 13.Rf4 Bg6 14.Bd4 (14.Nc3 b6 15.b5 Nc5 16.bc6 Bd6=) 14...Bg5 (14...b6 15.cb6 ab6 16.a3=+) 15.Rf1= Bf6 16.Bf6 Nf6 17.a4 (17.Rf4 a5=) 17...d4=+ 18.Qb3 Nd5 (18...de3 19.de3 a5 20.Bf3=+) 19.Bf3 de3 20.Bd5 (20.de3 Re8 21.Bd5 cd5=+) 20...Qd5 (20...ed2 21.Nd2 Qd5 22.Qd5 cd5 23.a5–/+) 21.Qe3 Black gets strong play along the open e–file (21.Qd5!? cd5 22.de3=) 21...Rad8–/+ 22.Rf2 (22.Re1!?–/+) 22...Rfe8 23.Nc3 Qc4 24.Rf4 (24.Qf4 Qf4 25.Rf4 Rd2–/+) 24...Re3–+ 25.Rc4 Rd2 26.Rc1 h6 27.h3? (27.Rf4 Rdd3 28.Rc4 f5–+) 27...Bf5 (better 27...Rg3 28.Ne4 Rgg2 29.Kf1 Be4 30.Re4 Rdf2 31.Ke1 Rh2–+) 28.Rf4 Be6 (28...Bc2 29.Rf3 Rf3 30.gf3–+) 29.Nd1 (29.b5!?–+) 29...Ree2 30.Rf2 Re1 31.Rf1 Rf1 32.Kf1 Bb3 (32...Rd4 33.Nc3–+) 33.Nc3 f5 (33...Rd4 34.b5–+) 34.Rb1 (34.b5 g5–/+) 34...Bc4–+ 35.Kg1 f4 (35...a5 36.ba5 Rc2 37.Nd1–+) 36.Ne4 (36.Rd1 Rc2 37.Ne4 Bd5–+) 36...Ra2–+ 37.Nc3 (37.a5 Bd5 38.Nf2 g5–+) 37...Rc2 (37...Ra3 38.Rc1 Rb3 39.b5–+) 38.Nd1 (38.Ne4 Bd5 39.Nf2 Kf7–+) 38...Bd5 (better 38...a5–+) 39.Rb2?? (better 39.Nf2–+) 39...Rc1 40.Rd2 Bb3 41.Rd8 Kh7 42.Kf2 Rd1 43.Rf8 (43.Rd1 Bd1 44.a5 g6–+) 43...Rd4 44.b5 (44.a5 Rb4 45.g3 fg3 46.Kg3 Rb5–+) 44...Ra4 45.bc6 bc6 46.Re8 (46.g4 Bd5–+) 46...Bd5 47.Re2 Ra2 (47...Ra2 48.Ra2 Ba2–+) 0–1. petrobbo (2105) – snowshinethedog (2140), ChessWorld.net, 2014.

9.h3 a5 10.a3 =+.

9.h3 h6 10.d3 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Qc7 14.Qb3 (14.Nd4 Bg6=) 14...b6=+ 15.d4 Rb8 16.cb6 (16.Bd3!?=+) 16...Qb6–/+ 17.b5 cb5 (18.Rc1 Qa5–/+) 0–1. Zamarski (2000) – Szczepaniak,Alicja (1975), corr 1. AMM Poland, 1991.

9.d4 Ne4

10.Nbd2 b6 11.Ne4 Be4 12.Nd2 Nf6 (12...Bf5 13.Nf3=) 13.Ne4 Ne4 14.Bd3 f5 15.Qc2 Rc8 16.f3 Nf6 17.e4 fe4 18.fe4 de4 19.Be4 Ne4 20.Rf8 Bf8 21.Qe4 Qd5 22.Re1 Qe4 23.Re4 Kf7 24.Kf2 Be7 25.Kf3 b5 26.Rf4 Bf6 27.Ke4 Rd8 28.h3 Ke7 29.Rf3 Rd5 30.Ra3 (White gets strong initiative) 30...Rd7 31.Ra6 Rc7 32.g4 g6 33.Bc1 Kd7 (33...g5 34.Be3+/–) 34.Bf4 Rb7 35.g5 Bd8 36.h4 Be7 37.Ra3 Bd8 (37...Bf8 38.Be5 Be7 39.Rf3+–) 38.Bd6 a5 39.ba5 Ra7 40.a6 b4 (40...Bc7 41.Ke5 Bd8+–) 41.Ra4 Bc7 42.Bc7 (42.Rb4?! Bd6 43.cd6 Ra6+=) 42...Kc7 43.Ke5 (43.Rb4?! Ra6 44.a4 Ra7+–) 43...Kd7 44.Kf6 Kc7 45.Ke6 Kb8 46.Kd6 Ka8 (46...h6 47.Kc6 hg5 48.hg5+–) 47.Kc6 Rf7 (48.d5 h6+–). fuiste – MIFAMA, ajedrez21.com, 2001.

10.Nbd2 Qc7 11.Ne4 Be4 12.Nd2 Bg6 13.Rc1 Bf6 (13...b6 14.Nb3=) 14.a4 White plans b5 14...e5 15.Nb3 e4 (15...Rfe8 16.de5 Ne5 17.Nd4=) 16.Bc3 (16.b5 Bf5+=) 16...Bg5= 17.b5 f5 18.g3 (18.Bh5 Rf6 19.Ba5 b6 20.Bg6 Rg6=) 18...Nf6 19.Kg2 (19.Rb1 Rab8=) 19...Bh6 (19...Rac8 20.Rb1=) 20.Rb1 Bf7 (20...Rab8 21.Ba5 Qd7 22.Nd2=) 21.Na5 (21.bc6 bc6 (worse is 21...Qc6 22.Na5 Qd7 23.Rb7+/–) 22.Ba5 Qe7=) 21...Rab8 22.Rb3 (22.Bb4 Qd7=) 22...g5 (22...Bg5 23.Qb1 Nd7 24.bc6 bc6 25.Rb7 Rb7 26.Qb7 (worse is 26.Nb7 Rb8 27.Ba6 Nf6+=) 26...Qb7 27.Nb7+=) 23.Bd2 (23.b6 ab6 24.cb6 Qd8=) 23...Kh8 (23...Bg7 24.b6 ab6 25.Rb6=) 24.Qc1 (24.bc6 bc6 25.f3 Be6=) 24...Bh5 (24...Be6 25.bc6 bc6 26.Kg1=) 25.Bh5+= Nh5 26.Qd1 (26.Qb2 f4+=) 26...Nf6= 27.Kh1 (27.f3 ef3 28.Rf3 Ne4=) 27...f4 28.ef4 gf4 29.gf4 cb5 30.ab5 Rg8 (30...Bf4 31.b6 ab6 32.cb6+=) 31.f5 (31.f3 ef3 32.Qf3 Ne4=) 31...Bf4= 32.Bf4 Qf4 33.Rg3 Ng4 (33...Qf5 34.c6 bc6 35.Nc6=) 34.Qe2+= Nh6 (34...Rg7 35.Rg2+=) 35.Qe3 Qh4 36.Rh3 Qg4 37.Rg3 Qh4 ½–½. Yarmolyuk,Yury (2130) – Cesbron,Guy (2040), BI–2010–P–00016, 2010.

10.Nbd2 Nd2 11.Qd2 a6 12.a4 (better 12.Bd3=) 12...f6? (better 12...Nf6!?=) 13.Nh4+– Bg6 (13...Qc7 14.b5+–) 14.Ng6 hg6 15.e4 f5 (15...de4 16.Bc4 Ne5 17.Be6 Nf7 18.f3 ef3 19.Rf3+–) 16.e5 g5 17.h3 Kf7 (17...Qc7 18.Bc3+–) 18.b5+– ab5 (18...Qc7 19.ba6 ba6 20.Rab1+–) 19.ab5 Rh8 (19...g6 20.Bc3+–) 20.Ra8 Qa8 21.Ra1 Qg8 (better 21...Qb8+–) 22.bc6 bc6 23.Ra7 Nf8 (23...Qc8+–) 24.Qg5 Ng6 25.Bh5 (25.Bh5 Rh5 26.Qh5+–) 1–0. marekt (2175) – thebutz (1890), gameknot.com, 2017.

10.Nbd2 Nd2 11.Qd2 Nf6 12.Ne5 =.

10.Nbd2 Ndf6 11.Nb3 Nd7 12.a4 Qc7 13.Ne5 Ne5 14.de5 f6 15.f3 Ng5 16.f4 (16.g4 Bg6+=) 16...Ne4 17.Nd4 fe5 18.fe5 +=. Labahn,Wolfgang – Pach,Remi, corr ICCF WT–I–1185, 1990.

8.0-0 Qc7

9.a4 0-0 10.Nh4 (10.d4 b6=) 10...Bg6 (10...a5!?=) 11.Ng6+= hg6 (11...fg6 12.d4 b6+=) 12.f4 (12.d4 Ne4+=) 12...e5 (12...a5!?=+) 13.Qe1 (13.fe5 Ne5 14.Bd4 a5+/–) 13...Rfe8 (13...ef4!? 14.Rf4 a5=) 14.fe5+/– Ne5 15.Qg3 Bd8 16.Na3 (16.Qh3 Nc4 17.Bc4 dc4+/–) 16...Ne4 (16...a5 17.Qf4+=) 17.Qe1+= Qe7 (17...Bf6 18.Bd4+=) 18.Nc2 (18.d3 Nf6+=) 18...Bc7 (18...Nc4 19.Bc4 dc4 20.Qe2+=) 19.Nd4 (19.d3 Ng5+/–) 19...Qg5 (19...Nc4 20.Bc4 dc4 21.Rc1+=) 20.Nf3 (20.Rc1 b6 21.cb6 Bb6+/–) 20...Nf3 21.Rf3 Be5 22.Be5 Re5 23.h4 (23.a5 Rf5+=) 23...Qe7= 24.Rh3 (24.d3 Nf6 25.Qg3 Re8=+) 24...Nf6 (24...a5 25.d4 Re6 26.Bg4=+) 25.Qg3 (25.a5 Re4 26.Rb1 Re8=) 25...Re8 (25...Re4 26.Rb1=) 26.Rf1 b6 27.h5 Nh5 28.Qh2= (White fights for the Initiative) 28...f5 29.Bh5+/– gh5 30.Rh5 Qf6 31.Rh8 Kf7 32.Re8 Re8 33.cb6+/– Re7 34.g4 g6 35.gf5 gf5 36.ba7 Ra7 37.a5 37...Ke6+/– 38.Rf4 Qg6 39.Qg2 Qg2 40.Kg2+– c5 41.bc5 Ra5 42.d4 Ra2 43.Rf2+– Ra3 44.Kf3 Ra8 45.Rh2 Rg8 46.Rh6 Ke7 47.Rd6 (47...Rg1 48.Rd5+–) 1–0. Moehring,Norbert (1905) – Sanna,Giuseppe (1620), Bad Woerishofen op, 2001.

9.a4 a5 10.ba5 Nc5 11.d4–/+.

9.a4 a5 10.Nh4 =.

9.Nc3 b6 10.cb6 ab6 =.

9.d4 0-0=.

9.d4 Ne4 10.a4 b6 11.Nbd2 bc5 12.dc5 Rb8 (12...e5 13.Ne4 de4 14.Nd2=) 13.b5 (13.Ne4 de4 14.Nd4 Rb4=) 13...Nec5 (13...e5 14.Qc1=) 14.Nd4 (14.Bg7 Rg8 15.Bc3 Bh3=) 14...Bf6=+ 15.Rc1 cb5 16.Nb5 Rb5 17.Bf6 Rb8 18.Bg7 Rg8 19.Bd4 Qd6 20.Bb5 Bh3 21.g3 Ke7 (21...Bf1? 22.Bc5 Qc7 23.Qf1+–) 22.Re1 a6 23.Bd7 Nd7 24.e4 Bg4 25.Qc2 (25.f3 Bh3 26.e5 Qb4=) 25...Rbc8 26.Qd3 (26.Qc8 Rc8 27.Rc8 de4=+) 26...e5 (26...Rc1!? 27.Rc1 e5=+) 27.Rc8+= ½–½. Vujadinovic,Milan – Schreiber,Eitan, EM/M/A056 ICCF Email, 1999.

9.Nd4 Bg6 10.f4 b6 (Black fights for the Initiative) 11.b5 (11.cb6 ab6 12.b5 c5=+) 11...Bc5 (11...cb5 12.Nb5 Qc5 13.Ba3=+) 12.bc6 (12.Nc6 a6=) 12...Nb8 13.Nb5 Qc6 14.d4 (better is 14.Be5!? 0-0 15.Nc7+=) 14...Be7–/+ 15.N1a3 Qb7 16.Rc1 Nc6 (16...Na6 17.Nd6 Bd6 18.Qa4 Kd8 19.Ba6=) 17.Qa4 (17.Nc7 Qc7 18.Bb5 0-0=+) 17...0-0–/+ 18.Rc6? (better is 18.Nc7! Qc7 19.Bb5–/+) 18...Qc6–+ 19.Rc1 Qe8 20.Qa6 Rc8 (better is 20...Qd7–+) 21.Nc7? (21.Rc8 Qc8 22.Qa7–+) 21...Qd8 (21...Qd7!? 22.Qa7 Bb4 23.Nab5–+) 22.Nab5 (22.Qa7 Bb4 23.Ba6 Ng4–+). Gross,Wilhelm – Merten,Rainer, xix/04, 1989.

9.Nh4 Bg6 =.

7.Be2 h6

8.0-0 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 b6 12.d4 (12.b5 bc5 13.bc6 Nb6=) 12...b5 (12...Be7 13.Qa4 Qc7 14.b5 bc5 15.Qa8 Bd8 16.bc6=) 13.Nbd2 (13.Nc3 Be7=) 13...Be7 14.Nb3 (14.Bb2 0-0=) 14...0-0 15.h3 Qc7 16.Bd3 Bd3 (16...Be4 17.Bc3=) 17.Qd3 Ne4 (17...Ra8 18.Nfd2=) 18.Nfd2 (18.Bb2 Ra8=) 18...f5 (18...Ndf6 19.Ne4 Ne4 20.Nd2 Nd2 21.Qd2=) 19.Na5 (19.Bb2 Ra8=) 19...Bf6 (19...Nd2 20.Qd2 Nf6 21.Qd3=) 20.Ne4 (20.Qe2 e5=) 20...fe4 21.Qe2 Bg5 (21...Rf7 22.f3 ef3 23.Qf3=) 22.Bc3 Rf5 (22...Nf6 23.Ra1=) 23.f4 (23.Nb3 g6=) 23...ef3+= 24.Rf3 Nf6 25.Be1 Ne4 26.Rf5 (26.Bf2 g6+=) 26...ef5 27.Qf3 Qd7 28.Kf1 (28.Bg3 Qe6 29.Be5 Qg6+=) 28...Qe8 (28...Qe6 29.Kg1+=) 29.Ke2 (29.Kg1 Qe6+=) 29...Qe6–/+ 30.g4 fg4 31.Qg4 Qe8 32.h4 Bf6 (32...Be3 33.Nc6 Bf2 34.Qc8 Qc8 35.Ne7 Kf7 36.Nc8 Bd4 37.Na7=) 33.Kd3 (33.Kd1 Kh8–/+) 33...h5 34.Qh3 Kf7 (34...Kf8 35.Qf3+=) 35.Bg3 (35.Nb3 Qe6 36.Qf3 Kg6+=) 35...Kf8–/+ (35...Ng3?! 36.Qg3 Qd7 37.Kd2=) 36.Nb7? (better is 36.Be1–/+) 36...Qg6–+ (36...Ng3?! 37.Qg3 Qe4 38.Kd2 Bh4 39.Qb8 Qe8 40.Qf4 Bf6 41.Qf5=) 37.Qc8 Kf7 38.Qd7? (38.Qc6 Ng3 39.Kc3 Ne4 40.Kb3–+) 38...Kg8 39.Be1 (39.Qc6 Ng3 40.Kd2 Nf1 41.Kc1–+) 39...Nc5 (39...Nc5 40.Kd2 Qd3 41.Kc1 Qe3 42.Bd2 Qa3 43.Kd1 Qa1 44.Ke2 Nd7–+) 0–1. Hal1958 – LucioDaSilva, playchess.de, 2004.

8.0-0 a5 9.a3 b6 10.Nd4 bc5 11.Nf5 ab4? (11...ef5 12.bc5 Rb8 13.Qc2 Bc5 14.Ra2=) 12.ab4 (better is 12.Ng3+–) 12...Ra1 13.Ba1 ef5 14.bc5 Nc5 15.Qc2 Qd6 16.Qf5 Be7 (16...Ncd7 17.Rc1+=) 17.Bf6 (17.Qc8!? Bd8 18.Bf6 Qf6 19.Rc1+/–) 17...Bf6+/– 18.d4 Ne6 19.Rc1 Ke7 20.Nd2 c5 21.dc5 Nc5 22.Rd1 Rd8 23.Nc4 (better is 23.Nf3!?+=) 23...Qe6–/+ 24.Qe6 ½–½. Becher – Thieme, corr, 1972.

8.a4 a5=+ 9.d4 ab4 10.Qb3 b6 11.Ne5? (11.cb6!? Qb6 12.0-0-/+) 11...Ne5 (11...bc5 12.dc5 Ne5 13.Be5-+) 12.de5 Nd7 13.cb6 Qb6 14.0-0 Be7 (14...c5 15.Nd2 c4 16.Nc4 dc4 17.Bc4-+) 15.Nd2 0-0 16.Nf3 (16.e4 de4 17.Nc4-+) 16...c5 17.Bb5 (17.Qd1 Qc7-+) 17...Rfd8 (17...c4 18.Qd1 Qc7 19.Nd4-+) 18.Nd2 (18.Qd1 Qc7-+) 18...c4 19.Bc4 (19.Nc4 dc4 20.Qc4 Qa5-+) 19...dc4 (better 19...Nc5!? 20.Bd4 Nb3 21.Bb6 Nd2 22.Bd8 Bd8 23.Bd5 ed5 24.Rfd1-+) 20.Nc4 Qa6 21.Rfd1 Rab8 22.a5 (22.Bd4-+) 22...Nc5 23.Rd8 Bd8 (23...Rd8?! 24.Qb4 Rd3 25.Bc3-+) 24.Qa2 b3 25.Qa3 Qc4 26.Rc1 (26.a6 Ra8 27.a7 Bb6-+) 26...Bc2 27.Bd4 (27.Ra1 Rb5 28.a6 Ra5 29.Qa5 Ba5 30.Ra5 Qe2-+) 27...Nd3 28.Qd6 (28.Ra1 b2 29.Bb2 Rb2-+) 28…Bc7 (28...Bc7 29.Qa3 Be5 30.Be5 Ne5-+) 0-1. carlos78 (2190) - zenpath (2105), Rated Blitz game, lichess.org, 2015.

8.Nd4 Bg6 =.

8.0-0 Be7

9.Nc3 0-0 10.d4 b6= 11.Rc1 Qb8 (11...Rb8 12.cb6 ab6 13.b5 cb5 14.Nb5=) 12.b5 (12.Qd2 Qb7=) 12...bc5 13.dc5 Nc5 14.Nd4 Rc8 15.Ba3 cb5 16.Nf5 ef5 17.Nd5 (< 17.Bb5 Ng4 18.g3 Ne4 19.Ne4 Ba3 (< 19...Qb5 20.Nc3 Qa5 21.Be7 Rc3 22.Rc3 Qc3 23.Qd5+=) 20.Rc8 Qc8=+) 17...Nd5 18.Qd5 b4 19.Bh5 Rf8 20.Bb2 Na4 21.Bd4 Nb6 (21...Nc3 22.Bc3 bc3 23.Rc3+/–) 22.Qf5 Qd6 23.Bf3 Rad8 (23...Rac8 24.Be4 g6 25.Qh3+/–) 24.Qg4 (24.Rfd1 Qd7 25.Qh5 Bd6+/–) 24...Qg6 25.Qg6 fg6 26.Rc7 (26.Rc6 Na4+/–) 26...Bf6 27.Bf6 gf6 28.Ra7 Nc4 29.Rb1 (29.Ra4 Nd2 30.Ra1 b3 31.ab3 Nb3+/–) 29...Ne5 30.Ra4 Rd2 31.Rbb4 Rc8 32.Rb1+– Rb2 33.Bd5 Kf8 34.Rd1 Nd3 35.h4 Nc1 36.Ra6 Rc7 37.Bf3 Kg7 38.a3 Ne2 39.Kh2 Nc3 40.Rdd6 Rf7 41.Rdc6 Nb1 42.Bd5 Rd7 43.e4 Rf2 44.e5 (44...Kh7 45.ef6+–) 1–0. Benassi,Aspasio – Draba,Henryk, IECG, 2001.

9.Nc3 0-0 10.d4 Ne4 11.Ne4 Be4 12.a4 Qc7 13.b5 Bf6 14.Qd2 e5 15.Rac1 Bf3 16.Bf3 e4 17.Be2 Bg5 18.Bc3 f5 19.Ba5 Qc8 20.f3 Qe8 21.Bc7 Qg6 22.a5 Rf7 23.fe4+/– fe4 24.Rf7 Qf7 25.a6 ba6 26.bc6 Nf6 27.Bg3 Rc8 28.h4 Bh4 29.Bh4 Rc6 30.Qa5 Kh7 31.Rf1 Qg6 32.Qd8 Ng4 33.Rf8 Qe6 34.Rh8 Kg6 35.Bg4 Qg4 36.Qe8 Kf5 37.Rf8 Rf6 38.Qd7 Kg6 39.Qg4 Kh7 40.Bf6 g5 41.Qf5 1–0. Fritz 10 – nn, internet, 2007.

9.Nc3 0-0 10.Nd4+= Bg6 11.f4 e5 12.fe5 (12.Nf5 Bf5 13.fe5 Ne5 14.Rf5 Nc4+=) 12...Ne5 13.Nf3 (13.Nf5 Nc4 14.Bc4 dc4=) 13...Nf3 (13...Nd3 14.Bd3 Bd3 15.Re1=+) 14.Bf3 (14.gf3? d4–+; < 14.Rf3 d4 15.Na4 d3–/+) 14...Qc7 (14...b6 15.b5=) 15.Ne2 (15.Rc1 a5 16.Qa4 ab4 17.Qb4 Ra5=) 15...Bd3 (15...b6 16.cb6 ab6 17.b5=) 16.Re1 (16.Qb3 Bg6=) 16...Be2 (16...b6 17.Nf4 Bf5 18.Rf1=) 17.Qe2 (17.Be2 a5 18.Qb3 ab4 19.Qb4 Qa5=) 17...Rae8 (17...b6 18.Rac1=) 18.Rf1 Nd7 19.Rf2 (19.Bg4 Bf6 20.Bd7 Bb2 21.Be8 Ba1 22.Bc6 Be5 23.Bd5 Bh2 24.Kh1 Be5+/–) 19...Bf6 (19...b6 20.cb6 ab6 21.Rc1=) 20.Bf6 Nf6 21.Raf1 Re5 (21...d4 22.e4=) 22.Bg4 (22.Qd1 b6=) 22...Rfe8 (22...Re4 23.Rf4 Rfe8=) 23.h3 (23.Rf6 gf6 24.Bf5 Kh8=) 23...R8e7 (23...d4 24.Rf3–/+) 24.Rf3 (24.Rf6 gf6 25.Bf5 Qd8=) 24...Ne4 (better is 24...Ng4 25.hg4 d4–/+) 25.Bh5?? (better is 25.Bf5=) 25...Rh5–+ 26.Rf4 Rg5 27.d3 Ng3 28.Qf3 Nf1 29.Kf1 Rge5 30.e4 de4 31.de4 Qd7 32.Kg1 Qe6 (33.a3 Re4 34.Re4 Qe4 35.Qe4 Re4–+; 32...Qd4!? 33.Kh2 Qb4 34.Rg4–+) 0–1. grain – The7thJoker9999, Live Game Caissa's Web, 2005.

9.Nc3 a5 10.a3 =.

9.d4 0-0 10.Nc3 =.

9.d4 0-0 10.Bd3 Bd3 11.Qd3 a5 12.a3 b6 13.Nbd2 ab4 14.ab4 bc5 15.bc5 Qc7 16.h3 Rfb8 17.Bc3 Qc8 18.Rfb1 Ra1 19.Ra1 Rb5 20.Rb1 (20.Ra7 Qb8 21.Ra2 Qb7=) 20...Rb1 21.Qb1 Qa6 22.Ne1 Ne8 23.Nd3 Bf6 (better 23...Nc7=) 24.Qb2?? (better 24.Nb4 Qa4 25.e4+=) 24...Qd3–+ 25.Qb7 Qc3 26.Qd7 Kf8 (26...Qa1 27.Nf1 Qa8 28.Nd2–+) 27.Nf3 (27.Nf1–+) 27...Qa1 28.Kh2 Qa6 (28...Qb2 29.Kg1 Qb1 30.Kh2–+) 29.Kg1 (29.g4 g6 30.Kg2 Qb5–+) 29...g6 (29...e5 30.de5 Be5 31.g4–+) 30.g4 Qa1 31.Kg2 Qa8 32.h4 (32.Kg1 Qa4–+) 32...g5 (32...Bg7 33.g5 h5 34.Nh2–+) 33.h5 (33.hg5 hg5 34.Kh3 Kg7–+) 33...Ng7 (33...Bg7!? 34.Ne1–+) 34.Kh3 Qe8 35.Qb7 Kg8 (35...e5 36.de5 Be5 37.Ne5 Qe5 38.Qc6–+) 36.Qc7 (36.Kg2 e5 37.de5 Be5 38.Ne5 Qe5 39.Qc6 Ne6–+) 36...Bd8 37.Qb7 (37.Qc8 f6–+) 37...f6 38.Qc8 Kf8 39.e4 (39.Kg2 Ke7 40.Qb8 Qd7–+) 39...Ke7 (39...de4 40.Nh2–+) 40.e5 (40.ed5 ed5 41.Kg2 Ne6–+) 40...f5 41.Kg2 Qd7 42.Qa6 (42.Qb8 fg4 43.Nh2 Nh5 44.Ng4 Nf4 45.Kf3 h5–+) 42...fg4 43.Nh2 Nh5 44.Ng4 Nf4 45.Kf3 (45.Kh2 Kf8 46.Ne3 Qf7–+) 45...Kf7 (better 45...Kf8 46.Qa8 Qe8 47.Ke3–+) 46.Nh6 (46.Kg3 h5 47.Ne3 Kg7–+) 46...Kg6 47.Ng4 Qh7 48.Ke3 (48.Qf1 Kg7 49.Kg3–+) 48...Qh1 49.Qa4 Qe4 (49...Qe1 50.Kf3 Qe4 51.Kg3 Qg2) 50.Kd2 Qd3 51.Kc1 Ne2 52.Kb2 Qd4 (52...Qc3 53.Ka2 Qd2 54.Ka3 Qc1 55.Kb3 Qb1 56.Ka3 Nc1 57.Nh6 Qa2 58.Kb4 Qb2 59.Qb3 Qb3) 53.Qd4 Nd4 0–1. Haschka,Peter (1760) – Ruzicka,Zdenek (2190), Korenov Czech Republic, USIC Championsh, 2017.

9.d4 Qc7 10.Nc3 0-0 11.a4 Bh7 (11...Rfb8 12.Qd2=) 12.a5 e5 (12...Bf5 13.Qd2=) 13.de5+= (White fights for the Initiative) 13...Ng4? (better is 13...Ne5!? 14.Ne5 Qe5+=) 14.Qd4+– h5 (14...Bf5 15.h3 Nge5 16.Ne5 Qe5 17.Nd5 cd5 18.Qe5 Ne5 19.Be5+–) 15.e4 (15.h3!? Nh6+–) 15...de4+/– 16.Ne4 Nde5 17.Ne5 Qe5 18.Qe5 Ne5 19.Be5 (19.Bh5 Nd3 20.Nd6 Nb2–+) 19...Be4 20.Bh5 Bd5 21.Rfe1 Be6 (21...Rae8!?+/–) 22.a6+– b6 23.cb6 ab6 24.Bc3 Ra7 25.Bf3 c5 (25...Rc8 26.h3+–) 26.b5 Rd8 27.Red1 Rd1 28.Rd1 Bc4 (28...f6 29.h4+–) 29.Bc6 (29...Be6 30.Be5+–) 1–0. Buczinski,Henryk – Sternik,Ryszard, corr 2. AMM, Poland, 1993.

9.Nd4 Bg6 10.f4 0-0 11.Nf3 (11.a3 Qc7=) 11...a5 12.a3 Qc7 13.d4 ab4 14.ab4 Ra1 15.Ba1 Ra8 16.Nbd2 Ra3 17.Nb3? (17.Ne5 Re3 18.Ng6 fg6 19.Bb2+=) 17...Ng4–/+ 18.Na5 (better is 18.Bc3!? Ra2 19.Bd2–/+) 18...Ne3–+ 19.Qc1 Ra5 (better is 19...Nc2!? 20.Bb2 Ra2–+) 20.Qe3–/+ Ra8 21.Ne5 Be4 22.Bc3 Ne5 (22...Ra2 23.Ra1 Ra1 24.Ba1–/+) 23.fe5 (23.de5 Bd8=+) 23...Ra3 (Black gets deadly initiative) 24.Qd2 Bg5 25.Qb2 Ra8 26.Ra1 (26.Bd2!?=+) 26...Be3 27.Kf1 (27.Kh1 Ra1 28.Qa1 Qd8–/+) 27...Ra1–+ 28.Qa1 Qd8 29.Be1 (better is 29.Qe1 Qg5 30.Qg3 Qg3 31.hg3–+) 29...Qg5 30.Bg3 h5 (better is 30...Qf5!? 31.Ke1 Bg2 32.Qd1–+) 31.Bf3 Bd3 32.Ke1 Bd2 (33.Kd1 Bb4–+) 0–1. Laine,E – Kopti,S, Thessaloniki, 1984.

9.Nd4 Bh7 +=.

6.c5 Be7

7.a3 0-0 8.d4 Nbd7 (8...b6 9.Bd3=) 9.Nh4 (9.Bd3=) 9...Ne4 (9...Be4!?=) 10.Nf5+= ef5 11.Bd3 (better is 11.Qf3+=) 11...Nf2?? (better is 11...b6+=) 12.Kf2+– Bh4 13.g3 Bg5 14.Bf5 (14.h4 Bh6 15.Bf5 g6+–) 14...Nf6 (14...Be3 15.Kg2 (worse is 15.Ke3 Qg5 16.Kf2 Qf5 17.Kg2 Qe4 18.Qf3 Qc2 19.Qf2 Qe4 20.Kg1 Qg6+–) 15...Re8 16.Re1+–) 15.Qf3 (15.Re1 g6 16.Bd3 Re8+–) 15...Re8 (15...g6 16.Bd3+–) 16.Re1 Qc7 (16...Ne4 17.Kg2+–) 17.Nd2 (17.Nc3 Qe7+–) 17...Re7 18.Re2 Rae8 19.Rae1 g6 (19...b5 20.Kg2+–) 20.Bd3 Re6 21.Nf1 (21.Kg2 Qe7+–) 21...Ne4 22.Be4 (22.Kg1 Qd7+–) 22...de4 (22...Rf6 23.Qf6! Bf6 24.Bd3+–) 23.Qg2 Rf6 (23...f5 24.Kg1+–) 24.Kg1 Qc8 (24...Rfe6 25.Nd2+–) 25.d5! Rf3 (25...cd5 26.Bf6 Discovered attack) 26.d6 (26.Nd2 Rf5 27.h4 Bh4 28.gh4 cd5+–) 26...Qd7 (26...Qe6 27.Nd2 Rf5 28.Rd1+–) 27.Nd2 Rf5 28.Ne4 Bh6 (28...Bd8 29.Rd1+–) 29.Nf6 (29.g4 Re4 30.Qe4 Rd5+–) 29...Rf6 30.Bf6 Qe6 (30...b6 31.Qf3+–) 31.Bd4 (31.Qf3 Qd7+–) 31...Qb3 (31...Bg5 32.Qf3+–) 32.Qf3 (better is 32.Qh3 Bg7 33.Qd7+–) 32...Qa3 (32...f5+–) 33.Qf6 Bg7 (33...Be3 34.Kg2 Re5 35.Be5 Bc5 36.Qg7) 34.Qg7 1–0. MrThayer (2195) – ChessSmith, ChessWorld.net, 2003.

7.Nc3 a5 8.a3 =+.

7.d4 a5 8.b5 0-0 9.a4 Nbd7 10.Nc3 Qc7 11.h3 Rfe8 12.Bd3 Bg6 (12...Bd3!? 13.Qd3 e5+=) 13.Bg6+= hg6 14.0-0 Bf8 15.Qd3 e5 16.de5 (16.b6 Qd8 17.Qc2 e4+=) 16...Ne5 17.Ne5 Qe5 18.Qd4 Qd4 19.ed4 Ne4 20.b6 (20.Ne4 Re4 21.Rfe1 Re1 22.Re1 cb5 23.ab5 f6+=) 20...f5 21.Rad1 Nc3 22.Bc3 Kf7 23.Rfe1 Be7 24.g3 Bf6 25.Re8 Re8 26.Kf1 Re4 27.Re1 Bg5? (better is 27...Ke6!+=) 28.Re4+/– fe4 29.Ke2 1–0. hal1958 – pirco, playchess.de, 2003.

7.d4 b6 8.Nc3 b5 (better is 8...0-0!?+=) 9.a4+= ba4 10.Qa4 0-0 11.Ne5 Qc7 12.b5 cb5 13.Nb5 Qb7 14.Be2 Nfd7 (14...a6 15.Ra2=) 15.Nd7+= Nd7 16.Qa6 Qb8 17.0-0 Bc5? (better is 17...Nf6+=) 18.dc5+– Nc5 19.Qd6 (better is 19.Qa3 Rc8 20.Na7+–) 19...Bd3+= 20.Qb8 (20.Qc5 Be2 21.Nc7 Qb2+/–) 20...Rab8 (20...Rfb8 21.Bd3 Nd3+/–) 21.Bd3+= Nd3 22.Bg7 (better is 22.Ba3 Rb5 23.Bf8 Kf8 24.Ra7+=) 22...Kg7–/+ 23.Na7 Rb2 24.Rad1 Ne5 25.Rc1 Nd3 26.Rc8 (26.Rcd1 Nc5 27.Nc6–/+) 26...Rc8–/+ 27.Nc8 Kf6 28.Nd6? (28.Rd1 Ne5–/+ (28...Nf2 29.Rf1+/–)) 28...Rb6?? (better is 28...Rb8–+) 29.Ne8–/+ Ke7 30.Ng7 Kf6 31.Nh5 Kg6–/+ 32.g4 Ne5 33.h3 f5 34.f3 Rb3 35.Nf4 Kf6 36.Kf2 Rb2 37.Kg3 Rb3 38.g5 Kf7 39.Kf2 Rb2 40.Kg3= Rb3 41.Ng2 Nc4–/+ 42.Kf4 Rb2 43.Rg1 Rf2 44.Kg3+= Re2 45.Kf4? Rf2 46.h4 Nd2 47.Ne1= Nc4 48.Rg2 e5–+ 49.Kg3 Rf1 50.Re2+= Rh1 51.Ng2 Rg1 52.h5?? Rh1?? 53.h6+= Kg6 54.f4 e4 55.Nh4+/– Kf7 56.Nf5 Rd1 57.Ra2+– Rd3? 58.Ra7 Kg8 59.Rg7 Kf8 60.Rh7 Ne3 61.Ne3 Re3 62.Kg2 Rc3 63.Rd7 Rc2 64.Kg3 e3 65.h7 Ke8 66.Rd5 e2 67.h8Q Ke7 68.Qe5 Kf7 69.Rd7 1–0. Remis Diaz – Fernandez Baniago, Santa Olaya op, 1998.

7.Nd4 Bg6 =+.

7.Be2 a5 8.a3 ab4 (8...b6 9.Nd4 Bb1 10.Qb1 ab4 11.ab4 Ra1 12.Qa1 bc5 13.bc5 Bc5 14.Nf3=+) 9.ab4 Ra1 10.Ba1 b6 11.d4 (11.Bf6 Bf6 12.d4 0-0=) 11...Nbd7 (11...0-0 12.0-0=) 12.0-0 0-0 13.Nh4 Be4 14.Nd2 h6 (14...Ne8 15.Nhf3=) 15.Bc3 (15.Bb2 Qc7=) 15...Qc7 16.Nhf3 (16.Ne4? Ne4 (16...de4?! 17.g3=+) 17.cb6 Qb6–+ (17...Nc3?! 18.bc7 Nd1 19.Ba6=+)) 16...Ra8 (16...Bf5 17.Qa4=) 17.Ne4 de4 (17...Ne4 18.Qc2=) ½–½. Bonetti,Shane – Schaefer,Uwe, ETC, 2004.

7.Be2 b6 8.Nd4 Bg6 9.Qc1 =+.

7.Be2 Nbd7 (--> 6.c5 Nbd7 7.Be2 Be7).

7.Ne5 0-0 8.Be2 (8.g4 Bb1 9.Rb1 a5+=) 8...Nbd7 (8...b6 9.d4+=) 9.Nd7 (9.0-0 Ne5 10.Be5 Nd7+=) 9...Nd7 (9...Qd7 10.0-0+=) 10.d4 f6 (10...b6 11.0-0+=) 11.Bd3 (11.0-0 b6=) 11...Bd3 12.Qd3 e5 (12...b6 13.0-0=) 13.a4 (13.Qf5 ed4 14.ed4 g6=) 13...e4+= 14.Qb3 (14.Qc3 f5=) 14...f5 (14...Rb8 15.0-0+=) 15.Nd2 (15.0-0 Qc7=) 15...Kh8 (better is 15...Rb8=) 16.0-0-0? (16.0-0 f4=) 16...a6 (16...b6!?–/+) 17.a5+= Bg5 18.g3 Qe8 19.Kb1 (19.h4 Be7+=) 19...Qe6 (19...Qh5 20.h4 Be7 21.Rde1+=) 20.Bc1 (20.Rdf1 Rae8–/+) 20...Rae8–/+ 21.Rde1 (21.Bb2 Nf6–/+) 21...Bd8 22.f4 ef3 23.Rhf1 (23.Nf3 Qe4 Double attack (23...Qe4 Decoy)) 23...Nf6 24.Rf3 Ne4 (24...Ng4 25.h3 Nf6 26.Ref1+=) 25.Qc2 Ng5 (25...Rf6 26.Ref1+=) 26.Rff1 (26.Rf2 Nh3 27.Rf3 Rf6+=) 26...Bc7 27.Kb2 (27.Rf2 Kg8–/+) 27...Kg8 28.Nf3 (28.Rf2 Rf7–/+) 28...Ne4 29.Nd2 Rf6 30.Ne4 (30.Rf3 Ng5 31.Rf2 Ref8–/+) 30...fe4 (worse is 30...de4 31.Qb3+=) 31.Qe2 Ref8 32.Bd2 (32.Rf6 Qf6 (32...gf6?! 33.Rf1=) 33.Kb1 Qf2–/+) 32...Qf7 (32...Rf3 33.Rf3 Rf3 34.Rg1–/+) 33.Rf6 Qf6 (33...gf6?! 34.Qg4 Kh8 35.Rf1=) 34.Kc1 (34.Qg4 Qf7–/+) 34...g6 (34...Qf7 35.Qg4–/+) 35.Kd1 h5 (35...Bb8 36.Rg1+=) 36.Rg1+= Kg7 (36...Qf2 37.Rg2 Qe2 38.Ke2+=) 37.Ke1 (37.h4 Qf2 38.Qf2 Rf2–/+) 37...Qg5 38.Rf1 Bg3 (38...Rf1 39.Qf1 Qg4 40.Qf2–/+) 39.hg3 Qg3 40.Kd1 Rf3 (40...Rf1 41.Qf1 h4 42.Ke2+=) 41.Rf3 (41.Kc2!?=) 41...ef3–/+ (41...Qf3?! 42.Qf3 ef3 43.Ke1=) 42.Qe1?? (better is 42.Qf1–/+) 42...f2–+ 43.Qf1 Qf3 (better is 43...Qg4 44.Kc2 Qg1 45.Qh3–+) 44.Kc2 h4 0–1. Hal1958 – Profylaxe, playchess.de, 2002.

7.Ne5 b6 8.g4 Bb1 9.Rb1 =.

7.Bf6 Bf6 8.d4 Nd7 =.

7.Nc3 0-0

8.d4 b6 9.a3 =+.

8.d4 Nbd7 9.Bd3= Ne4 (9...Bd3 10.Qd3 Qb8 11.0-0=) 10.0-0 Qc7 11.Qc2 Nc3 (11...Ndf6 12.a4=) 12.Bf5 ef5 13.Bc3 g6 (13...f4 14.e4 de4 15.Qe4=) 14.a4 Nf6 15.Rfc1 (15.Ne5 Rfe8+=) 15...Ne4 16.b5 Rfe8 17.bc6 (17.Ne5 Bf6+=) 17...bc6= 18.Rab1 Bf6 19.Rb3 (19.Bd2 Rab8=) 19...f4 20.Be1 (20.Bd2 fe3 21.Re3 Re6=) 20...fe3 21.fe3 Bg7 (21...Rab8 22.Rb8 Rb8 23.Nd2=+) 22.Rcb1 Bh6 23.Nd2 Nf6 24.Bg3 (24.Bf2 Qa5=) 24...Qd7 25.Nf1= Ng4 26.Re1 Re6 27.h3 Nf6 28.Rb8 Rb8=+ 29.Bb8 Ne4 30.Rb1 Re7 31.Bh2 Qf5 32.Rb8 Kg7 33.Rb2 Bg5 34.Bb8 Bh4 35.g3 Bf6 36.Kg2 h5 37.a5 Qe6 38.Kh2 Qc8 39.Qe2 Rb7 40.Rb7 Qb7 41.Bf4 Qb4 42.a6 Qc4–/+ 43.Qc4 dc4–+ 44.d5? c3 45.dc6 c2 (46.c7 c1Q–+; 45...Nc5?? 46.c7 c2 47.e4+–) 0–1. Melich,Jindrich (2170) – Kostelny,Jozef, Stary Smokovec op, 1996.

8.Be2 a5 9.a3 =+.

8.Be2 Qc7 9.Nh4= a5 10.Nf5 ef5 11.a3 (11...Na6 12.Na2=). Sawamura,Tetsushi – Fotland,Petter, IECG, 2001.

8.Nh4 Bg4 9.Qc2 a5 =+.

7.Be2 0-0

8.0-0 a5 9.a3 Nbd7 10.Nc3 (10.d3 Bg4=) 10...b6 (10...e5 11.Na2 ab4 12.ab4+=) 11.d4 (11.Nd4 bc5 12.Nc6 Qe8=) 11...h6 (11...ab4 12.ab4 Ra1 13.Qa1=) 12.Qb3 (12.Qd2 Ne4 13.Qd1 ab4 14.ab4 Qc7=) 12...ab4 (12...Qb8 13.cb6 Qb6 14.b5+=) 13.ab4 bc5 (13...Rb8 14.Qa2=) 14.dc5 (14.bc5 Rb8 15.Qa3 Re8=) 14...Qc7 15.Nd4 Bg6 16.Ra4 (16.f4 Ra1 17.Ra1 Rb8+=) 16...Ra4 (16...e5 17.Nf3+=) 17.Na4 (17.Qa4!? Nb8 18.Nb3=) 17...Rb8+= 18.Ra1 (18.Qa3 e5 19.Nb3 Ra8+=) 18...Qb7 (18...Nc5 19.Nc5 Bc5 20.Nb5 cb5 21.Rc1+=) 19.Bc3 (19.Qd1 Qc8 (19...Qb4?? 20.Nc6 Qe4 21.Ne7 Kf8 22.Ng6 Qg6 23.c6+–) 20.Qe1 Qc7=) 19...Nc5 (19...Ne4 20.Qd1–/+) 20.Nc5+= Bc5 21.bc5 Qb3 22.Nb3 Rb3 23.Bf6 (23.Bd4 Bc2+=) 23...gf6–/+ 24.h4 (24.g3 Rc3 25.Ra5 Be4–/+) 24...Rc3 (24...Rb2 25.Bd1 Rb5 26.Rc1–/+) 25.Ra5 h5 (25...Rc1 26.Kh2–/+) 26.Bf3 (26.Ba6 Rb3+=) 26...e5 27.Be2 (27.g3!?–/+) 27...Rc1–+ 28.Kh2 Rc2 29.Ba6 (better is 29.Bd1 Rf2 30.Kg3–+) 29...Rf2 30.Bb7 (30.Kg1 Rb2–+) 30...Be4 31.Bc6 Rg2 (31...Bg2?! 32.Kg1 Rb2 33.Ra7–/+) 32.Kh3 Rc2 33.Bd7 Rc3 34.c6 (34.Kh2 Kf8–+ (34...Re3?! 35.c6–/+)) 34...Re3 (better is 34...d4–+) 35.Kh2–/+ Rc3 (better is 35...Re2 36.Kh3 Rc2–/+) 36.Ra8? (better is 36.Ra7 Bd3 37.c7–/+) 36...Kg7–+ 37.Ra7 d4?? (37...Kg6 38.c7 Bf5 39.c8Q Rc8 40.Bc8 Bc8 41.Ra8–+) 38.c7 d3 (better is 38...Rc2 39.Kg3 d3–+) 39.c8Q–/+ Rc8 40.Bc8 Bf3?? (better is 40...d2 41.Rd7 Bf5 42.Rd2 Bc8–+) 41.Rd7 (41.Ra2 Kg6=) 41...Bg4 42.Rd8 e4 (42...Bc8 43.Rc8 f5 44.Kg3+=) 43.Bb7 (43.Bg4 hg4 44.Kg3 f5+/–) 43...f5+= 44.Kg3 Kf6 45.Kf4 Ke7 46.Rd5 (46.Rd4 Kf6+=) 46...Ke6 47.Rd4 f6?? (better is 47...Kf6+=) 48.Bc8+– Ke7 49.Bf5 1–0. orangutanb4 (2000) – kiticr (1770), kurnik, 2011.

8.0-0 b6 9.d4 Nbd7 10.Bd3 (10.Nh4 Bg4=) 10...Be4 (10...Bd3 11.Qd3 Qb8 12.Qc2=+) 11.Be4 Ne4 12.Nbd2 Ndf6 (12...a5 13.a3=+) 13.Ne5 Rc8 (< 13...bc5 14.Nc6 (14.bc5?! Qc7+=; 14.dc5?! Qc7=) 14...Qd6 15.Ne7 Qe7 16.dc5+/–) 14.Ne4 Ne4 15.f3 Nf6 16.Qe2 Qc7 17.g3 bc5 18.bc5 Nd7 19.Nd7 Qd7 20.Bc3 f6 21.f4 e5 22.fe5 fe5 23.Rf8 Rf8 24.Rf1 Bg5 (better is 24...Rf1!? 25.Qf1 Qg4=+) 25.Rf8+= Kf8 26.Bb4 (better is 26.de5!? Qb7 27.Qd3+/–) 26...Qe7 27.Qa6? (better is 27.Qf3!? Kg8 28.h4=+) 27...Be3–/+ 28.Kg2 Bd4 (28...Qe6 29.de5 d4=+) 29.Qc8?? (29.Qc6 Qd8 30.Qe6+/–) 29...Qe8–+ 30.Qf5 Kg8 31.Qd3 Qf7 32.Qe2 e4 33.a4 Qb7 34.Qd2 Be5 35.Qg5 Bf6 36.Qd2 Qe7 37.Qe3 Bg5 38.Qe2 e3 (39.Qg4 h5 40.Qc8 Kh7 41.Qf5 g6–+) 0–1. valpa – chessH, playchess.de, 2002.

8.0-0 b6 9.Nd4 =.

8.0-0 Nbd7 9.a4 a6 (9...a5 10.b5 cb5 11.d4–/+) 10.Nd4 (10.a5 Bg4=) 10...Bg6 (10...Bb1 11.Rb1 a5=) 11.Nc3 (11.a5 Qc7=) 11...Qc7 (11...a5 12.b5 Bc5 13.Nb3–/+) 12.b5 (better 12.a5=) 12...ab5 13.ab5 Nc5 0–1. AvImd (1745) – vikramsoni (1725), lichess.org, 2020.

8.0-0 Nbd7 9.d4 b6 10.Nh4 =.

8.0-0 Nbd7 9.d4 h6 10.Nc3 Re8 11.Bd3 (11.a4 Qc7=) 11...Ne4 (11...Bd3 12.Qd3 b6 13.Rfb1=) 12.Qc2 Ndf6 13.a4 a6 (13...Qc7 14.Ne5=) 14.Ne5+= Qc8 (14...Nc3 15.Bf5 ef5 16.Bc3+=) 15.Ne4 Ne4 (15...Be4 16.Be4 Ne4 17.f3+=) 16.g4 Bh7 17.Nf7! Kf7 18.f3 Nf6 (18...e5 19.fe4 (< 19.Be4 de4 20.Qc4 Qe6–/+) 19...Kg8 20.h3+/–) 19.Bh7 Nh7 20.Qh7 Bf6 (20...Rh8 21.Qd3+/–) 21.f4 Rh8 22.Qd3 g5 (22...Rf8!?+/–) 23.e4+– Kg7 (23...gf4 24.Rf4 Kg7 25.Raf1+–) 24.e5 Be7 (24...Bd8 25.f5+–) 25.f5 ef5 (25...Bf8 26.Bc1+–) 26.gf5 Bd8 (26...Kf7 27.Rae1 Bf8 28.Qf3+–) 27.Rae1 Kf8 (27...Kf7 28.Qh3 h5 29.e6 Kf6 30.Bc1+–) 28.f6 Qg4 29.Kh1 Qh5 30.Qf5 Bc7 31.h3 Qe8 (31...Ke8 32.e6 Bd8 33.e7 Be7 34.Re7 Kf8 35.Qe6+–) 32.e6 Bf4 (32...Bd8+–) 33.Rf4! gf4 34.e7 (34...Qe7 35.Re7 b6 36.Qe6 Rh7 37.Rh7 bc5 38.Qf7) 1–0. Trokenheim,Marek – Frenzel,Lothar, corr KGP/V, 1993.

8.0-0 Nbd7 9.Nd4 Bg6 =.

8.d3 a5 9.a3=+.

8.d3 a6 9.Nh4 Bg6 10.Ng6 hg6 11.0-0 Nbd7 12.e4 (12.Qc2!?+=) 12...de4= 13.de4 Qc7 (13...a5!? 14.a3 Ne4=+) 14.Qc2 Rfd8 15.Nd2 e5 (15...b6 16.cb6 Nb6 17.a3+=) 16.Nc4 Nh7 17.Rad1 Nhf8 18.Nd6 Bf6? (better 18...Bd6!? 19.cd6 Qb6+–) 19.Bc4+– Ne6 20.Be6 fe6 21.Qc4 Nf8 22.f4 (22.Rd3!? a5 23.ba5 Ra5+–) 22...ef4 23.Bf6 gf6 24.Rf4 Kg7 (24...b5!? 25.Qc3 a5+–) 25.Rdf1 Qe7? (25...b5 26.Qc3 Kg8 27.Rf6 Qg7+–) 26.Rf6 Qf6 (26...Rd7 27.Qc3 Kg8 28.Qe5+–) 27.Rf6 Kf6 28.Qf1 Kg7 29.Qf7 Kh8 30.h4 (better 30.Qb7 Kg8+–) 30...a5? (30...Rd7 31.Qf3+–) 31.ba5 (better 31.Qb7 Rdb8 32.Qe7 ab4 33.Nf7 Kg8 34.Nh6 Kh8 35.Qf7+–) 31...Ra5?? (better 31...Rd7 32.Qf6 Kg8+–) 32.Qf6 Kh7 (32...Kg8 33.Qd8 Ra2 34.Qe8 Ra1 35.Kf2 Ra2 36.Kg3 Ra8 37.Qa8 Kg7 38.Qb7 Nd7 39.Qd7 Kh6 40.Nf7 Kg7 41.Ng5 Kf6 42.Qf7 Ke5 43.Qg7) 33.Qd8 (33.Qd8 b6 34.Qe7 Kh6 35.Nf7 Kg7 36.Ne5 Kg8 37.Qf7 Kh8 38.Qf8 Kh7 39.Qf7 Kh6 40.Qg6) 1–0. GuestLQTV – GuestLCKW, freechess.org, 2017.

8.d4 b6 9.0-0 =.

8.d4 Nbd7 9.0-0 b6 10.Nh4 Be4 11.Nd2 bc5 12.bc5 Qc7 (12...Rb8 A) 13.Ne4? Ne4 (13...Rb2?! 14.Ng3+=; 13...de4?! 14.Rb1–/+) 14.Rb1 Bh4–+; B) 13.Bc3=) 13.Ne4 (13.f3 Bg6+=) 13...Ne4 (13...de4 14.g3=) 14.Nf3 Rab8 15.Qc2 f5 (15...e5 16.Ne5 Ne5 17.de5 Nc5 18.Rfc1=) 16.Rab1+= Rf6 (16...Qa5 17.a3+=) 17.Bc3 (17.a3 Rff8=) 17...Rh6 (17...Rff8 18.Bd3=) 18.Rb8+= Qb8 (18...Nb8 19.Rb1 Nd7 20.h3+=) 19.Rb1 (19.Ba5 e5+=) 19...Qc7= 20.h3 Bf6 21.Be1 e5 22.Ba6 ed4 (22...Qd8 23.de5 Be7 24.Nd4 Ne5 25.Nf5+/–) 23.ed4 Qf4 24.Rb7 Nf8 (24...Rg6 25.Qe2 (worse is 25.Rd7 Qf3 26.Bf1 Bd4–/+) 25...Nf8 26.Qe3+/–) 25.Qd3 (25.Ra7 Rg6 26.Kf1 Ng5+=) 25...Ng5 (25...Qc1 26.Qe3 Qa1 27.Rb8+=) 26.Ng5+/– Bg5 27.Ra7 Qc1 28.Qc3 Qd1 29.Bc8 Rf6 (29...Ne6 30.Qb4 Nd4 31.Bf5+–) 30.Qb4 Qe2 31.a4 Bf4 32.Qb1 (32.a5 Qd1+/–) 32...Ne6 33.Be6 (33.Bc3 Ng5 34.Bf5 Rf5 35.Ra8 Rf8 36.Rf8 Kf8 37.Qf5 Nf7 38.Qf4 Qd1 39.Kh2 Qa4+/–) 33...Re6 34.Ra8 Re8 35.Re8 Qe8 36.a5 Qc8 (36...Qe2 37.Bb4 Qc4 38.g3+–) 37.Qb3 (37.Qd3 Bc7+–) 37...g6 (37...Qe6 38.Bc3 Qc8 39.Qd1+–) 38.Qd3+– Kf7 (38...Bb8 39.Bd2+–) 39.a6 (39.Bd2 Bc7+–) 39...Qb8 (39...Bc7 40.Bd2+–) 40.g3 (40.g4 fg4 41.hg4 Qc8+–) 40...Bc7 (40...Bg5 41.h4 Bf6 42.h5+–) 41.Qa3 (41.Bd2 Bd8+–) 41...Ke6 (41...Qa7 42.Bd2+–) 42.a7 Qa8 43.Qa6 Bd8 (43...Kd7 44.Ba5+–) 44.Ba5 Kd7 45.Bd8 Kd8 46.f4 h5 47.Qb6 Kc8 48.Kf2 Qb7 49.Ke3 Qe7 50.Kd2 (50.Kd2 Qb7 51.Kc3+–) 1–0. Schirmer,Michael – Pommerel,Wim, email 4AMM–F, 1998.

8.d4 Nbd7 9.0-0 b6 10.Nh4 Bg4 11.Bg4 Ng4 12.Qg4 Bh4 13.Nd2 (13.Nc3 Be7=) 13...Be7 14.a3 Qc7 (14...Nf6 15.Qg3=) 15.Bc3 Nf6 16.Qe2 Rfe8 17.f4 (17.Rfe1 Red8=) 17...b5 (17...Rab8 18.cb6 Qb6 19.Qf3=) 18.g4 (18.a4 Reb8=) 18...a6 (18...Rab8 19.g5 Nd7 20.Qh5=) 19.g5 Nd7 20.Nf3 (20.Qh5 Reb8=) 20...Bf8 (20...Ra7 21.a4=) 21.h4 (21.Ne5 Ne5 22.fe5 a5+=) 21...h5 (21...Be7 22.Ne5+=) 22.Ne5 (22.g6 fg6 23.Qd3 Kh7+=) 22...g6 23.Qd3 (23.a4 Bg7+=) 23...Ne5 (23...Bg7 24.a4=) 24.fe5+= ½–½. Fournier,Frederic (1780) – Shchepetnev,Vasiliy (1905), ETC PCM–2005–G4, 2005.

8.d4 Nbd7 9.0-0 Qc7 10.Nc3 h6 (10...a5 11.b5=) 11.a4 b6 12.Bd3 (12.a5 bc5 13.bc5 Rfb8=) 12...Bd3 13.Qd3 bc5 (13...a5 14.cb6 Qb6 15.ba5 Qa5 16.Rfb1=) 14.bc5 (< 14.dc5 a5 15.Ba3 Rfc8–/+) 14...Rfb8 15.Rab1 e5 16.Qf5 ed4 (16...e4 17.Nd2=) 17.ed4+= Rb3 18.Nd2 (18.Rfe1 Re8+=) 18...Rb4 19.Rfe1 Bf8 (19...Re8 20.Nf3=) 20.Nf3 g6 21.Qc2 (21.Qd3 Rab8 22.Bc1 Rb1 23.Nb1 Bg7=) 21...Bg7 (21...Rab8 22.Kh1=) 22.Qd2 Rb3 (22...Qa5 23.Ne5 Rc8 24.Qd3=) 23.Re3 (23.Re7=) 23...Rab8 (23...Qb7!?=) 24.Nb5+/– Ne4 25.Qd1 Rb2 26.Rb2 (26.Nc7 Rb1 27.Qf1 Rf1 28.Kf1–+) 26...cb5=+ 27.ab5 (The passed pawn on c5 will quickly become a dangerous weapon) 27...Qa5 (27...Ndc5 28.Rc2 Rb5 29.dc5 Rc5 30.Ree2=) 28.c6 Nb6 (28...Nf8 29.Qb3+=) 29.Qe1 Qe1 (29...Qa4 30.Qb4=) 30.Re1+= Nc8 31.Rb3 (31.Ra1 Ng5 32.Rb4 Nf3 33.gf3 Nd6=) 31...a6 32.Reb1 Rb6 33.ba6 Ra6 34.Rc1 Ncd6 (34...Ra4!?=) 35.Rb8 Kh7 36.Ne5 (better is 36.c7 Ra2 37.Rd8+=) 36...Nb5?? (better is 36...f6 37.Nd7 Nc3+=) 37.c7 (37.Rb5!? Be5 38.de5 Nc3+–) 37...Be5?? (37...Nc7 38.Nf7 Ne6–+) 38.de5 Nc7+= 39.Kf1?? Ra4?? 40.Rc6?? Rc4 (40...Ne6!? 41.Rcb6 Ra2–+) ½–½. Buczinski,Henryk – Kozlowski,Waldemar, corr Poland, 1993.

7.Be2 h6

8.0-0 0-0 9.d3 (9.a3 b6 10.Qc1 bc5 11.bc5 Nbd7=) 9...b6 10.d4 (10.Bd4 Na6 11.e4 bc5 12.ef5 cd4 13.fe6 fe6 (< 13...Nb4 14.a3=) 14.Nd4 Qd6=+ (< 14...Nb4 15.Ne6 Qd6 16.Nf8 Rf8 17.a3+–)) 10...Nbd7 (10...a5 11.Qa4=+) 11.Nbd2 (11.Nc3 a5 12.a3 ab4 13.ab4 Qc7=) 11...Rb8 (11...a5 12.a3=) 12.Nb3 (12.a3 a5=) 12...a5 13.ba5 bc5 14.dc5 Nc5 (better is 14...Bc5!? 15.Rc1 Ne4=) 15.Nfd4 Qd7 16.Nf5 ef5 17.Bf6 gf6 18.Qc2 Nb7 (18...Ne4!?+/–) 19.Nd4+– Na5 (19...Rfc8 20.Qf5 Qf5 21.Nf5+–) 20.Nf5 Kh8 (20...h5 21.Bh5 Nc4 22.e4+–) 21.Nh6 Nb7 22.Bg4 Qc7 23.Qe2 Nd6 24.Bf5 Nf5 25.Nf5 (25…Rb4 26.Qh5 (26.Ne7?! Qe7 27.a4 Ra8+–) 26...Kg8 27.Rfc1+– (27.Ne7?! Qe7 28.Rfc1 Qe6+–)) 1–0. Hofmann,Bernhard (2095) – Sommer,Johannes (1605), Wattens op, 1997.

8.Nc3!? =.

8.Nd4 Bg6 9.f4 Nbd7 10.0-0 0-0 11.f5 ef5 12.Nf5 b6 13.Qa4 (13.cb6!? ab6 14.Qc2=) 13...Bf5–/+ 14.Rf5 bc5 15.bc5 Nc5 16.Qc2 (16.Qc6?? Rc8 17.Qb5 Rb8 18.Bf6 Rb5 (18...Bf6?! 19.Qc5 Ba1 20.Nc3–+; 18...gf6?! 19.Qc6=) 19.Be7 Rb1 20.Rb1 Qe7–+) 16...Ne6 Black prepares d4 17.Qc6 d4 18.Bc4? (better is 18.Rb5!?–/+) 18...Rc8–+ 19.Qa4? (19.Qa6 Nc5 20.Qa3–+ (20.Qa7?? de3 21.de3 Ra8 22.Qa8 Qa8–+)) 19...de3 20.de3 Qb6 21.Qb3 (21.Rf2 Ng4 22.Nc3 Nf2–+) 21...Rc4! 22.Qc4 Qb2 23.Qc3 Qc3 (better is 23...Qe2 24.Nd2 Bc5 25.Rc5 Nc5 26.Qc5 Qd2 27.h3–+) 24.Nc3 Rc8 25.Nd5 Nd5 26.Rd5 Bc5 27.Re5 Bb6 28.h4 Rc3 29.Kf2 Bd8 30.g3 (30.Re4–+) 30...Rc2 31.Kf3 Bf6 (31...Bf6 32.Ke4 Re2 33.Re6 fe6–+) 0–1. Mikhaylov,Dimitri (1850) – Azimova,Karina (2040), St Petersburg RUS, Chigorin Mem, 2012.

8.Ne5 Nbd7–/+ 9.0-0 Ne5 (9...a5 10.g4 Be4 11.a3+=) 10.Be5+= 0-0 (10...a5 11.ba5 Nd7 12.Bg7+=) 11.d4= Ne4 (11...Nd7 12.Bg3=) 12.f3 Nf6 13.Nd2 (13.Nc3 Nd7 14.Bg3 Re8+=) 13...Nd7 14.Bg3 Bf6 (14...a5 15.a3=) 15.Bd6 Re8 16.f4 (16.Nb3 e5=) 16...Be7 17.Be7 Qe7 18.Nf3 f6 (18...Nf6 19.a3=) 19.Nh4 g5 (19...Be4 20.Qb3=) 20.fg5 (20.Nf3 Kh8+=) 20...fg5= (worse is 20...hg5 21.Rf5 (21.Nf5 ef5 22.Rf3 f4+=) 21...ef5 22.Nf5+/–) 21.Rf5 ef5 22.Nf5 Qf6 (22...Qe6!? 23.Bd3 Rf8=) 23.Bd3+= Re6 (23...Kh8 24.Rb1+=) 24.Qh5 (24.Qg4 a5 25.Rf1 ab4+/–) 24...Rf8 (24...Kh8 25.Re1+=) 25.Rf1 Kh8 26.Rf3 (26.Nh4 Qe7 27.Ng6 Rg6 28.Qg6 Qe3 29.Kh1 Rf1 30.Bf1 Nf8 31.Qh6 Kg8=) 26...Qg6 (26...Qf7!? 27.Qg4 Qh7+=) 27.Qg6+/– Rg6 28.Ne7 Rgf6 29.Ng6 Rg6 30.Bg6 Nf6 31.Bd3 Kg7 32.h3 a6 (32...Re8 33.Kf2+/–) 33.a4 (33.Kf2 Re8+/–) 33...Re8 34.g4 Ne4 35.Be4 Re4 36.Kf2 Re8 37.a5 Kg6 38.Kg3 Re4 ½–½. Grossmann,Philipp (1930) – Hanisch,Friedrich (2060), Regionalliga NO, 2007.

6.cd5 cd5

7.a3 a6 8.d3 Nc6 9.Nbd2 Be7 10.Be2 0-0 11.0-0 h6 12.h3 Rb8 13.Rc1 Rc8 14.Re1 b5 15.Nb3 Bd6 16.Nfd4 Nd4 17.Bd4 Qd7 (17...Rc1!? 18.Qc1 e5=) 18.Bf6+= gf6 19.d4 (19.e4 Rc1 20.Qc1 de4 21.de4 Be4 22.Bb5 Qb5 23.Re4 Qh5+=) 19...e5 (19...Rc1!? 20.Qc1 Bc7+=) 20.Nc5+= Bc5 21.dc5 d4 (21...Rfd8 22.a4+=) 22.ed4+– ed4 (22...Qd4 23.Bf3 Rc7 24.Qe2+–) 23.Bf3 d3 (23...Rfd8 24.Qd2 Kg7 25.Qf4+–) 24.Re3 (better 24.Qd2!?+–) 24...d2+– 25.Rcc3 Rfe8 26.c6 Re3?? (26...Qd4 27.Kh2=) 27.fe3 (27.cd7 Rec3 28.dc8R Rc8 29.Qd2 Kg7+–) 27...Rc6?? (better 27...Qd6+–) 28.Bc6 Qe6 (28...Qd6 29.Kf2+–) 29.Qd2 Bh3 (29...Be4 30.Bd7 Qe5 31.Bc8+–) 30.Bf3 (better 30.gh3 Qh3 31.Qg2 Qg2 32.Kg2 Kg7+–) 30...Bf5 31.Qd8 Kg7 32.Rc8 (better 32.Qd4+–) 32...Qe3?? (better 32...Qc8 33.Qc8 Bc8=) 33.Kh2+– Qf4?? (better 33...Qe5 34.g3 Qb2 35.Bg2 Bc8 36.Qc8 Qa3 37.Qg4 Kf8+–) 34.Kg1 (better 34.g3 Bc8 35.gf4+–) 34...Qe3= 35.Kf1?? (better 35.Kh1 Qe1 36.Kh2 Qh4 37.Kg1 Qe1 38.Kh2 Qh4 39.Kg1 Qe1 40.Kh2=) 35...Qd3 (better 35...Bd3 36.Qd3 Qd3 37.Kf2 Qa3–+) 36.Qd3 (36.Kf2 Qd8 37.Rd8 Be6+–) 36...Bd3 37.Kf2 Bc4 38.Rc6 f5 39.Ra6 h5 (39...f4 40.Rb6+–) 40.Bh5 f6 41.Kf3 Kh6 42.Be8 Kg5 43.Rb6 f4 44.Bb5 Bb5 (44...Bd5 45.Kf2 Kf5+–) 45.Rb5 (45.Rb5 Kh6 46.a4 Kg7 47.a5 Kg6 48.a6 Kf7 49.a7 Ke6 50.a8Q Kf7 51.Rb7 Ke6 52.Qc8 Ke5 53.Qc5 Ke6 54.Re7) 1–0. amirgloo – strat7 (1605), lichess.org, 2018.

7.a3 Bd6 8.Be2 0-0 9.Nh4 Bb1 10.Qb1 Ne4 11.Nf3 Nc6 12.0-0 f5 (12...Rc8 13.d3 Ng5 14.Ne1=) 13.d3+= Nf6 14.b5 Ne7 15.a4 Ng6 16.Nd4 Qe7 17.f4 Ng4 18.Bg4 fg4 19.Qa2 Kh8 20.f5 ef5 21.Nf5 Rf5 22.Rf5 Qe3 23.Kh1 Nh4?? (better is 23...Nf4+=) 24.Rf7+– (< 24.Rd5 Re8 25.Bd4 Qh6+–) 24...Be5 25.Raf1 (25.Rb7?! Rc8 26.Rf7 Qd2+–) 25...Ng6 26.Be5 Qe5 27.Rb7 h5 (27...g3 28.Qc2 Rf8 29.Rbf7+–) 28.Rbf7 g3 (28...Kh7+–) 29.R7f5 Qe2 (29...Qe6 30.Rh5 Kg8 31.Qd5 Qd5 32.Rd5 Nf8+–) 30.Qe2 1–0. marekt – chessH, ChessWorld.net, 2002.

7.Nd4 Bb4? 8.Qa4 Nc6 9.Nc6 bc6 10.Qb4 +–.

7.Nd4 Bg6 8.Be2 a6 (8...Nbd7 9.a3=) 9.0-0 Nbd7 (9...Bb4? 10.Qa4 Qd7 11.Qb4+–) 10.a3 Bd6 11.Nc3 0-0 12.Rc1 (12.f4 Rc8=) 12...Rc8 13.f4 b5 14.f5 ef5 15.Nf5 Bf5 16.Rf5 g6 (16...Nb6 17.Na2 Ne4 18.d3=) 17.Rf3+= Qe7 18.Qe1 Qe6 19.Rh3 Rb8 (19...Rc7 20.Qh4=) 20.Qh4+= h5 21.Rf1 Be7 22.Qg3 Nh7 23.Bh5 Ng5 24.Nd5! Nh3 (24...Qd5 25.Bf3 Decoy) 25.Qh3 Qh3 26.Ne7 (26.gh3?! Bd6 27.Bd1 Kh7+=) 26...Kh7 27.Bg6! fg6 28.gh3 Rbe8 (28...Rf1 29.Kf1 Nb6 30.d3+/–) 29.Nd5 Rf1 30.Kf1 Kg8 31.d3 Re6 32.e4 g5 (32...Kf7 33.Ke2+–) 33.Bc1 (33.Kf2 Nb6 34.Nb6 Rb6+/–) 33...Nf6 (33...Ne5 34.d4 Nc6 35.Be3+–) 34.Nf6+– Rf6 35.Ke2 Rg6 36.d4 g4 (36...Rh6 37.Bg5 Rh3 38.Bf4 Ra3 39.d5+–) 37.h4 Rf6 38.d5 Rf3 39.Bg5 Kf7 40.h3! Ra3 (40...Rh3 41.e5 Passed pawn; 40...gh3 41.Kf3 Deflection) 41.hg4 Rg3 42.e5 Rg4 43.e6 Ke8 (43...Kg6 44.Kf3 Rd4 45.h5 Kh5 46.e7 Kg5 47.e8Q Rf4 48.Ke2+–) 44.Kd3 (44.Kd3 Rg1 45.d6 Rd1 46.Bd2+–) 1–0. Pcmvr – CaballoVerde, playchess.de, 2005.

7.Be2 Bb4 8.Qa4 Nc6 9.Bb5 Be7 10.Bc6 bc6 11.Qc6 Nd7 12.Bg7? (12.0-0 0-0 13.Bd4 Be4-/+) 12...Rg8 (better 12...Rc8!? 13.Qa6 Rc1 14.Ke2 Rh1 15.Bh8 Bb1-+) 13.Bc3-/+ Rg2 14.Ne5 (14.Ke2 Rc8 15.Qa4 Bc5-/+) 14...Rc8-+ 15.Qa4 f6 16.Nc6 (16.Ba5 Bc2 17.Qb5 Rb8 18.Qd7 Qd7 19.Nd7 Kd7-+) 16...Qc7 (better 16...Nc5!? 17.Qb5 Qb6 18.Na7 Qb5 19.Nb5 Kd7-+) 17.Ne7-/+ Ke7 18.Bb4? (18.Na3 Nc5 19.Bb4-+) 18...Kf7-+ 19.Nc3 Ne5 20.Ba5 Qc4 (better 20...Nd3!? 21.Ke2 Rf2 22.Kd1 Nb2 23.Ke1 Rh2 24.Rg1-+) 21.Qc4 Rc4 (better 21...Nc4 22.Bb4 a5-+) 22.0-0-0?? (better 22.Kf1 Bh3 23.Ke2 Bg4 24.Kf1-+) 22...Nd3 23.Kc2 Nf2 24.Kb3 Nd1 25.Rd1 Rh2 26.Bc7 (26.e4 Bg6 27.Nb5-+) 26…Rc7 0-1. carlos78 (2185) - elman1 (2150), Rated Blitz game, lichess.org, 2014.

7.Be2 Bd6 8.0-0 0-0 9.a3 Nbd7 10.Nc3 a6 11.Nd4 Bg6 12.Rc1 Rc8 13.Qb3N White prepares b5 13...e5 (13...Ne5 14.Na2=) 14.Nf3 Nb6 15.Na4 (15.Nh4 Nc4 16.Ng6 hg6=) 15...Na4 (15...Nc4 16.d3 (worse 16.Bc4 dc4 17.Rc4 Rc4 18.Qc4 e4-/+) 16...Nb2 17.Qb2=) 16.Qa4= Qe7 17.b5 (17.d4 e4 18.Ne5 Bf5=) 17...ab5=+ 18.Qb5 h6 19.a4 Bh5 20.h3 e4 (20...b6 21.Rc8 (21.Qb6? Rb8 22.Qd6 Qd6 23.Be5 Qb4-+) 21...Rc8 22.d3= (22.Qb6? Bf3 23.Bf3 Rb8-+)) 21.Nd4 Be2 22.Ne2 Qd7 23.Bf6 Qb5 24.ab5 gf6 25.Nd4 Be5 (25...Kh7 26.g4+=) 26.Nf5+= Kh7 27.Ne7 Rc1 28.Rc1 d4 29.Rc4 de3 30.de3 Re8 (30...Ra8!? 31.g4 Ra1 32.Kg2 Rb1+/-) 31.Nf5 Kg6 32.g4 h5 33.Kg2 (33.Re4?! Bh2 34.Kh2 Re4=) 33...hg4 34.hg4 Kg5 (34...Bb8!?+/-) 35.Re4+- Rc8 36.Rb4 Rc2 (36...b6 37.Ra4+-) 37.Kf3 Bh2 (37...Rc5 38.b6+-) 38.Ng3 (better 38.Ra4!? Kg6+-) 38...Bg3 39.Kg3 Rc5 40.f4 Kg6 41.Kf3 (41.e4 b6+-) 41...f5+/- 42.gf5 Kf5 43.e4 Ke6 44.Kg4 f6 45.b6 Rc6 46.Rb5 White prepares f5 46...Rd6 47.f5 Kf7 48.Kf4 Rc6 49.e5 Rc4 50.Ke3 fe5 51.Re5 Rb4 (better 51...Rc6!?+=) 52.Re6+- Ra4 (52...Rh4 53.Rd6+-) 53.Rd6 Ke7 54.Rh6 Rb4 55.Rh7 Kf6 56.Rb7 Kf5 57.Kd3 (better 57.Kd2+-) 57...Ke6 58.Kc3 Rb1 59.Kc4 Kd6 60.Rb8 Kc6 61.Rc8 Kb7 62.Rc7 Kb6 63.Rh7 Rc1 64.Kb4 Rb1 65.Ka3 Ra1 66.Kb2 Rf1 67.Rh6 Kb5 68.Rh5 Kb6 69.Rh6 Kb5 70.Rh5 Kb6 71.Rh6 ½-½. carlos78 (2160) - Larsan (2010), Rated Blitz game, lichess.org, 2014.

7.Be2 Nbd7 8.a3 Bd6 9.0-0 0-0 10.Nc3 Rc8 11.h3 a6 12.Na4 b5 13.Nc3 Ne4 14.Ne4 Be4 15.Nd4 Qe7 16.d3 Bg6 17.Rc1 Be5 18.Qb3 Nb8 19.a4 ba4 20.Qa4 Bd6 21.b5 ab5 22.Nb5 Nd7 23.Nd6 Qd6 24.Ba3 Nc5 25.Rc5 Rc5 26.d4 Rc4 27.Bc4 Qd8 28.Bf8 Qf8 29.Be2 h6 30.Qb3 Kh7 31.Bd3 Bd3 32.Qd3 g6 33.Rb1 Kg7 34.e4 de4 35.Qe4 h5 36.Qe5 Kh7 37.Qf6 Kg8 38.Rb7 Qe8 39.Re7 Qf8 40.Rd7 Normal 1-0. carlos78 (2180) - bigticket91 (2160), Rated Blitz game, lichess.org, 2015.

7.Nh4 Bg4 8.Qa4 e6 9.h3 Bh5 10.g4 Ne4 11.Nf3 =.

6.cd5 ed5

7.a3 Nbd7 8.d4 (8.Be2 Bd6=) 8...h6 (8...Bd6 9.Be2=+) 9.Nc3 (9.Bd3 Bd3 10.Qd3 Bd6=) 9...a6 (9...Bd6 10.Be2=) 10.Rc1 (10.Bd3 Bd3 11.Qd3 Bd6=) 10...Bd6 11.Bd3 Bd3 12.Qd3 0-0 13.0-0 Re8 14.Rfe1 (14.Na4 Qc7=) 14...Ne4 15.h3 (15.Rc2 Ndf6=+) 15...Ndf6 (15...Qe7 16.Qc2=+) 16.Nd2 Nd2 17.Qd2 Qe7 ½–½. Gonzalez Lopez,Vladimir – Fernandez Gradin,Damian, ch Asturias Oviedo, ESP, 2003.

7.Qb3 a6 A) 8.Nd4 Be4 (8...Bg4 9.h3 Bh5 10.Bd3 Nbd7 11.0-0 c5 12.bc5=; 8...Bg6 9.Be2 Bd6 10.0-0 Qe7 11.a3 a5 12.ba5=) 9.d3 Bg6 10.Be2 Bd6 11.0-0 0-0 12.Rc1=; B) 8.Nc3 Bd6 (8...Qb6 9.a3 Bd6 10.Be2 0-0 11.0-0 Bg4 12.Na4=; 8...Be7 9.Be2 0-0 10.Nd4 Bg6 11.0-0 Qd6 12.a3=) 9.Be2 Qe7 10.a3 0-0 11.0-0 Re8 12.Nd4=; C) 8.Be2 Bd6 (8...Qd6 9.a3 Be7 10.Be5 Qe6 11.d4 Nfd7 12.Bf4=; 8...Be7 9.0-0 0-0 10.Nd4 Bg4 11.f3 Be6 12.a3=) 9.Nd4 Bg6 10.0-0 Qe7 11.a3 a5 12.ba5=.

7.Qb3 Bd6 A) 8.Nd4 Bg6 (8...Bg4 9.h3 Bd7 10.Be2 Qe7 11.a3 0-0 12.0-0=; 8...Be4 9.d3 Bg6 10.Be2 a5 11.ba5 Qa5 12.Bc3=) 9.a3 Nbd7 10.Be2 a5 11.0-0 ab4 12.ab4+=; B) 8.Be2 Qe7 (8...0-0 9.Nd4 Bg6 10.0-0 Qe7 11.a3 a5 12.ba5=; 8...Nbd7 9.Nd4 Bg6 10.0-0 Qb6 11.a3 a5 12.ba5=) 9.Bc3 0-0 10.Nd4 Bg6 11.0-0 Ne4 12.f4+=; C) 8.a3 Nbd7 (8...Qe7 9.Nd4 Bg6 10.Be2 0-0 11.0-0 a5 12.ba5=; 8...0-0 9.Be2 Re8 10.0-0 Nbd7 11.Nd4 Bg6 12.f4=) 9.Nd4 Bg6 10.Be2 a5 11.0-0 ab4 12.ab4+=.

7.Qb3 Nbd7 8.Be2 (8.Nd4 Bg6 (8...Be4 9.d3 Bg6 10.Be2 a5 11.ba5 Qa5 12.Nc3=; 8...Bg4 9.f3 Bh5 10.Be2 a5 11.ba5 Nc5 12.Qd1=) 9.Be2 a5 10.ba5 Qa5 11.0-0 Nc5 12.Qd1+=; 8.Nc3 Bd6 (8...Qb6 9.Nd4 Bg6 10.a3 a5 11.Na4 Qc7 12.b5+=; 8...a5 9.Nd4 Bg6 10.b5 c5 11.Nf3 c4 12.Qd1+=) 9.Nd4 Bg6 10.a3 a5 11.Be2 ab4 12.ab4+=) 8...Bd6 (8...Qb6 9.a3 a5 10.b5 Bd6 11.0-0 0-0 12.Nc3+=; 8...Bg4 9.0-0 Bd6 10.Bd4 Qc7 11.h3 Bf3 12.Bf3=) 9.Nc3 (9.Nd4 Bg6 10.0-0 a5 11.ba5 Nc5 12.Qd1+=) 9...a5 (9...Qb6 10.Nd4 Bg6 11.a3 a5 12.ba5+=) 10.a3 (10.Nd4 Bg6 11.ba5 Nc5 12.Qd1+=) 10...ab4 11.ab4 Ra1 12.Ba1 0-0 13.0-0 Re8 14.Bb2 h6 15.Nd4 Bg6 16.Ra1 Qb6 Attacks the isolani on b4 17.Ra4 Qc7 18.g3 h5 19.Nf3 Bf5 20.Ra1 Ne5 21.Nd4 Bg4 22.f4 Ned7 23.Bf1 Nb6 24.Nd1 (24.Ra7 Nc8 25.Ra8 Qd7=) 24...Qd7 25.Nf2 Ne4 26.Ne4 de4 27.Ra7 Nc8 28.Ra8 Bh3 29.Bc4 Bf8 30.Bc3 Nd6 31.Re8 Ne8 32.Qd1 Nf6 33.b5 h4 34.bc6 bc6 35.Be2 Nd5 36.gh4 c5 37.Nb5 Nb4 38.Kf2 Nd3 39.Kg3 Be6 (worse is 39...Qb5 40.Bd3 Qd3 41.Kh3=) 40.Qb1 Be7 41.Ba5 (41.Bd3 ed3 42.e4 Bc4+=) 41...Bc4–/+ 42.Nc3 Qf5 43.h3 Qf6 (43...Qg6!? 44.Bg4 f5–/+) 44.Kh2 Qh4 45.Qf1 f5 46.Qg2 Kh7 47.Bd3 Bd3 48.Nd5 Bf8 49.Qg3 Qg3 50.Kg3 ½–½. forsetinn (2170) – borde (2085), gameknot.com, 2014.

7.Qb3 Qe7 A) 8.Nd4 Bg6 (8...Be4 9.a3 a5 10.ba5 Ra5 11.Nc3 Bg6 12.Qb6=; 8...Bg4 9.a3 a5 10.h3 Bc8 11.ba5 Ra5 12.Be2=) 9.a3 a5 10.ba5 Ra5 11.Be2 Qc7 12.Bc3=; B) 8.a3 Nbd7 (8...a5 9.ba5 Ra5 10.Be2 Ne4 11.Nd4 Bg6 12.0-0=; 8...a6 9.Nd4 Bg6 10.Be2 Nbd7 11.Nc3 Rd8 12.0-0+=) 9.Nd4 Bg6 10.Be2 a5 11.ba5 Nc5 12.Qb4+=; C) 8.b5 c5 (8...Be4 9.bc6 bc6 10.Nd4 Qd7 11.Nc3 Bg6 12.Rc1=) 9.Nc3 Qe6 10.d3 Be7 11.Ng5 Qd7 12.e4=.

7.Qb3 Be7 A) 8.Nd4 Be4 (8...Bg4 9.h3 Bd7 10.Be2 0-0 11.0-0 Qb6 12.a3=; 8...Bg6 9.Be2 Bd6 10.0-0 Qe7 11.a3 a5 12.ba5=) 9.d3 Bg6 10.Be2 a5 11.ba5 Qa5 12.Bc3=; B) 8.a3 Nbd7 (8...0-0 9.Be2 a5 10.Nd4 Bg6 11.ba5 Nbd7 12.Bc3+=; 8...Bd6 9.Nd4 Bg6 10.Be2 0-0 11.0-0 a5 12.ba5=) 9.Nd4 Bg6 10.Be2 a5 11.0-0 ab4 12.ab4+=; C) 8.Be2 Qd6 (8...Qb6 9.a3 c5 10.Nc3 c4 11.Qd1 a5 12.b5=; 8...0-0 9.Nd4 Bg6 10.0-0 Qd6 11.a3 Bd8 12.f4=) 9.a3 0-0 10.Nd4 Bg6 11.0-0 Re8 12.f4=.

7.b5 Nbd7 8.a4 Bc5 9.Be2 0-0 10.0-0 h6 11.Nc3 Bb4 12.Qb3 Bc3 13.Qc3 c5 14.a5 b6 15.d3 Bg4 16.h3 Bh5 17.g4 Bg6 18.Ne5 Ne5 19.Qe5 Re8 20.Qf4 d4 21.Bf3 Nd5 22.Bd5 Qd5 23.ed4 cd4 24.Rfd1 Rad8 25.ab6 ab6 26.Ra7 Qb5 27.Ba1 Bd3 28.Qf7 1-0. carlos78 (2310) - jozo45 (2045), Rated Blitz game, lichess.org.

7.b5 Be7 8.Be2 0-0 9.0-0 c5 10.d3 Nbd7 11.a4 Rc8 12.a5 h6 13.Nbd2 Re8 14.Re1 Bd6 15.Bc3 Bh7 16.Qb3 +=. marekt – upton, ChessWorld.net, 2003.

7.Nd4 Bg6 8.b5 c5 9.Nf3 b6 (9...Bd6 10.Be2=+) 10.Be2 Bd6 11.d4 (11.Nh4 0-0=) 11...c4=+ 12.Ne5 Nbd7 13.Nc6 Qc7 (13...Qc8 14.Nc3 a6 15.Qa4=) 14.h3 (14.Nc3!?=) 14...0-0 15.0-0 Rae8 (15...a6 16.a4=+) 16.Bg4 (better 16.Nc3!?=+) 16...Ng4–/+ 17.Qg4 Nf6 18.Qf3 Be4 19.Qe2? (better 19.Qd1!?–/+) 19…Bd3–+ (19...Bd3 20.Qd1 Bf1 21.Qf1 a6–+) 0–1. GuestGNQH – GuestPZJK, freechess.org, 2018.

7.a3 Bd6

8.Nc3 0-0 9.Be2 Re8 (9...a5 10.b5 Qe7 11.0-0 c5 12.d3 Nbd7 13.Rc1 Rfe8 14.Qa4 Rac8=; 9...Nbd7 10.Nd4 Bg6 11.f4 Ne4 12.0-0 Qh4 13.Ne4 Be4 14.Qe1 Qh6=; 9...Qd7 10.0-0 a5 11.b5 c5 12.Rc1 Rc8 13.b6 Qe7 14.d3 Nbd7=; 9...Qe7 10.0-0 a5 11.b5 c5 12.d3 Nbd7 13.Rc1 Rfe8 14.Re1 Rad8=; 9...b5 10.Nd4 Be6 11.a4 ba4 12.Ra4 Bd7 13.0-0 a6 14.Qb3 Re8=) 10.0-0 a5 11.b5 c5 12.Rc1 Qe7 13.Re1 Nbd7 14.Qa4 Nb6+=.

8.Nc3 a5 9.b5 c5 (9...0-0 10.Be2 Qe7 11.0-0 Re8 12.bc6 bc6 13.Qa4 Ra7 14.d3 c5=; 9...Qe7 10.Nd4 Bg6 11.Be2 0-0 12.0-0 c5 13.Nf3 Nbd7 14.Nh4 Qe6=; 9...Qd7 10.Ne2 Qe7 11.Ned4 Bd7 12.bc6 bc6 13.Bd3 0-0 14.Nf5 Bf5=; 9...Qc7 10.Ne2 Qe7 11.Ned4 Bd7 12.Bd3 Ne4 13.bc6 bc6 14.Be2 0-0=; 9...Bg4 10.Be2 0-0 11.0-0 Re8 12.bc6 bc6 13.Qc2 Nbd7 14.Rfb1 Rb8=) 10.Be2 0-0 11.0-0 Re8 12.d3 Nbd7 13.Rc1 Qe7 14.Qa4 Nb6 =.

8.Nc3 Nbd7 A) 9.Be2 a5 (9...0-0 10.0-0 a5 11.b5 c5 12.d3 Re8 13.Rc1 Rc8 14.Re1 Qc7=; 9...Qe7 10.Nd4 Bg6 11.f4 Ne4 12.0-0 Nc3 13.Bc3 Be4 14.d3 Bg6+/–; 9...Bg4 10.0-0 0-0 11.h3 Bf3 12.Bf3 Nb6 13.d3 Re8 14.Qc2 Qe7=; 9...Ne4 10.0-0 0-0 11.Nd4 Bg6 12.f4 Qh4 13.Ne4 Be4 14.Qe1 Qh6=; 9...Be6 10.0-0 0-0 11.Ng5 Bf5 12.Nf3 a5 13.b5 c5 14.Rc1 Qe7=) 10.b5 c5 11.0-0 0-0 12.d3 Re8 13.Qb3 Nb6 14.Rac1 Qe7+=; B) 9.b5 c5 (9...Qb6 10.Nd4 Bg6 11.Na4 Qc7 12.bc6 bc6 13.Rc1 c5 14.Nb5 Qc6+=; 9...Rc8 10.bc6 bc6 11.Nd4 Bg6 12.Ba6 Rc7 13.Be2 0-0 14.f4 Nc5+=; 9...Nb6 10.Be2 c5 11.0-0 0-0 12.d3 Re8 13.a4 d4 14.ed4 cd4=; 9...Bg6 10.Be2 c5 11.Rc1 Qe7 12.d3 0-0 13.0-0 Rfe8 14.Re1 Bf5=; 9...Qb8 10.Be2 0-0 11.d3 c5 12.Rc1 Re8 13.0-0 Qc7 14.d4 c4+=) 10.Be2 0-0 11.0-0 Re8 12.d3 Ne5 13.Na4 Ng6 14.Re1 Rc8+=; C) 9.Rc1 Qe7 (9...a5 10.b5 c5 11.Be2 0-0 12.0-0 Re8 13.d3 Rc8 14.Re1 Qc7=; 9...0-0 10.Be2 a5 11.b5 c5 12.0-0 Re8 13.d3 Qe7 14.Qa4 Nb6=; 9...Rc8 10.Be2 0-0 11.Nd4 Bg6 12.f4 Ne4 13.0-0 Qh4 14.Ne4 Be4=; 9...Qb6 10.Be2 0-0 11.Nd4 Bg6 12.f4 a5 13.f5 ab4 14.ab4 Qb4=; 9...a6 10.Be2 0-0 11.Nd4 Bg6 12.f4 Ne4 13.0-0 Qh4 14.Ne4 Be4=) 10.Nd4 Bg6 11.Be2 a5 12.b5 c5 13.Nf3 c4 14.d3 cd3=; D) 9.d3 Qe7 (9...Qb6 10.Be2 0-0 11.0-0 Bg4 12.Nd4 Be2 13.Nce2 Qc7 14.Ng3 Bg3=; 9...0-0 10.Be2 Re8 11.0-0 Qe7 12.Nd4 Bg6 13.Nf3 Ng4 14.g3 d4=; 9...a5 10.b5 c5 11.Be2 0-0 12.0-0 Re8 13.Qb3 Nb6 14.Qc2 Rc8+=; 9...Be6 10.Be2 0-0 11.0-0 Qe7 12.Nd4 a5 13.b5 c5 14.Ne6 fe6=) 10.Be2 0-0 11.0-0 Rfe8 12.Nd4 Bg6 13.Qd2 a5 14.b5 c5+=; E) 9.Nd4 Bg6 10.Be2 a5 11.b5 c5 12.Nf3 Qe7 13.0-0 0-0 14.Nh4 Qe6=.

8.Nd4 Bd7 A) 9.Be2 a5 (9...0-0 10.0-0 a5 11.b5 c5 12.Nf3 Re8 13.Nc3 Bf5 14.d3 Nbd7=) 10.b5 c5 11.Nf3 0-0 12.0-0 Re8 13.Nc3 Bf5 14.Rc1 Nbd7=; B) 9.Bd3 Ng4 (9...0-0 10.0-0 a5 11.b5 Re8 12.Qc2 a4 13.bc6 bc6 14.Nc3 Qb6=; 9...Qe7 10.0-0 a5 11.b5 0-0 12.Qc2 cb5 13.Nb5 Rc8 14.N1c3 Be5=; 9...b5 10.Nb3 Bg4 11.Qc2 h6 12.Na5 Qd7 13.f4 Qc7 14.0-0 Bd7+/–; 9...a5 10.b5 0-0 11.0-0 Re8 12.Qc2 Ne4 13.Nc3 Nc3 14.Qc3 c5=; 9...Bg4 10.f3 Be6 11.Qc2 0-0 12.0-0 Nbd7 13.f4 Nb6 14.Ne6 fe6+=) 10.Nf5 Be5 11.Bc3 Bc3 12.dc3 Bf5 13.Bf5 Ne5 14.0-0 Qf6=.

8.Nd4 Be4 A) 9.Nc3 Bg6 (9...0-0 10.Ne4 de4 11.d3 c5 12.bc5 Qa5 13.Qd2 Qc5 14.Rc1 Qg5=; 9...a5 10.Ne4 de4 11.Nf5 Bf8 12.b5 Qd5 13.Ng3 Nbd7 14.bc6 bc6=) 10.Be2 a5 11.b5 c5 12.Nf3 Qe7 13.d3 Nbd7 14.Rc1 0-0=; B) 9.h4 h6 (9...h5 10.d3 Bg6 11.Be2 0-0 12.0-0 Re8 13.Nd2 a5 14.b5 Qb6=; 9...Qd7 10.h5 h6 11.d3 Bh7 12.Be2 0-0 13.0-0 Re8 14.Nd2 Qe7+=; 9...Qc8 10.h5 h6 11.d3 Bf5 12.Nf5 Qf5 13.Nd2 Nbd7 14.e4 Qe6=; 9...Bb1 10.Rb1 0-0 11.Nf5 Bc7 12.Be2 Re8 13.f4 a5 14.b5 c5=; 9...a5 10.d3 Bg6 11.h5 Bh5 12.Rh5 Nh5 13.Qh5 0-0 14.b5 Be7+/–) 10.d3 Bg6 11.Be2 a5 12.h5 Bh7 13.b5 c5 14.Nc2 0-0+=; C) 9.d3 Bg6 10.Be2 a5 11.b5 c5 12.Nf3 Bf5 13.0-0 0-0 14.Nc3 Qe7=.

8.Nd4 Bg4 A) 9.Qc2 a5 (9...0-0 10.Nf5 Bf5 11.Qf5 Nbd7 12.Be2 Qc7 13.f4 a5 14.b5 Qb6=; 9...a6 10.Bd3 0-0 11.Nf5 Bf5 12.Bf5 a5 13.ba5 Re8 14.0-0 g6=; 9...Qe7 10.Bd3 0-0 11.0-0 Re8 12.Nf5 Bf5 13.Bf5 Nbd7 14.f4 a5=; 9...Be5 10.h3 Bd7 11.Ne6 Be6 12.Be5 Nbd7 13.Bd4 a5 14.Be2 ab4=; 9...h6 10.Bd3 0-0 11.0-0 a5 12.f3 Bd7 13.b5 Qe7 14.Nc3 Be5=) 10.b5 c5 11.Nf5 0-0 12.Nd6 Qd6 13.f3 Bd7 14.Be2 Re8=; B) 9.Qb3 Qe7 (9...0-0 10.h3 Bh5 11.Bd3 Re8 12.Nf5 Bc7 13.0-0 Nbd7 14.f4 Bg6=; 9...Nbd7 10.f3 Be6 11.f4 Ne4 12.g3 Bg4 13.d3 Nef6 14.h3 Bh5+/–; 9...Ne4 10.d3 Nf6 11.h3 Bc8 12.Be2 a5 13.0-0 ab4 14.ab4 Ra1=; 9...a6 10.h3 Bh5 11.Nf5 0-0 12.Bd3 Bc7 13.0-0 Re8 14.f4 Bg6=) 10.h3 Be6 11.Be2 0-0 12.Nc3 a5 13.b5 c5 14.Ne6 fe6+=; C) 9.Be2 Bd7 (9...Be2 10.Qe2 0-0 11.0-0 Re8 12.Nf5 a5 13.b5 a4 14.Qf3 Re6=; 9...Qd7 10.f3 Bh5 11.0-0 0-0 12.Qe1 Re8 13.Qh4 Bg6 14.f4 h6=) 10.0-0 a5 11.ba5 Ra5 12.Qb3 b5 13.Rc1 0-0 14.Qc2 Re8=; D) 9.Qa4 0-0 (9...Nbd7 10.h3 Be6 11.Be2 0-0 12.0-0 a5 13.b5 c5 14.Ne6 fe6+=; 9...a5 10.b5 c5 11.h3 Bd7 12.Nf3 0-0 13.Be2 Re8 14.0-0 Bf5+=) 10.Bd3 Nbd7 11.f3 Ne5 12.Be2 Bd7 13.Qc2 a5 14.ba5 Qa5+=; E) 9.f3 Be6 (9...Bc8 10.Bd3 0-0 11.0-0 Re8 12.Qc2 Qe7 13.f4 Ne4 14.Nc3 Bg4=; 9...Bd7 10.Bd3 a5 11.b5 0-0 12.0-0 Re8 13.Qc2 a4 14.f4 c5=; 9...Bh5 10.Nf5 Bg6 11.Nd6 Qd6 12.Be2 0-0 13.0-0 Re8 14.f4 Bf5=) 10.Be2 0-0 11.Ne6 fe6 12.f4 b5 13.a4 Na6 14.ab5 Nb4=.

8.Nd4 Bg6 A) 9.Nb3 Nbd7 (9...0-0 10.Be2 Qe7 11.0-0 Nbd7 12.f4 Be4 13.Nc3 c5 14.bc5 Nc5=; 9...Qe7 10.Be2 0-0 11.0-0 Nbd7 12.f4 Be4 13.Nc3 c5 14.bc5 Nc5=; 9...a6 10.Be2 0-0 11.0-0 Qe7 12.f4 Ne4 13.Qe1 h6 14.Bd4 Re8=; 9...b6 10.Be2 0-0 11.Nc3 a5 12.ba5 ba5 13.0-0 Nbd7 14.f4 Rb8=) 10.Be2 0-0 11.0-0 Ne4 12.f4 Qe7 13.Na5 Rab8 14.Nb3 Nb6=; B) 9.Be2 a5 10.b5 c5 11.Nf3 Bf5 12.0-0 0-0 13.d3 Re8 14.Nc3 Nbd7=; C) 9.f4 a5 (9...Ne4 10.g3 Nf6 11.Be2 c5 12.bc5 Bc5 13.0-0 Qd7 14.g4 h6+=) 10.ba5 Qa5 11.Be2 Be4 12.Bc3 Qa4 13.d3 Qd1 14.Kd1 Bg6=.

8.Be2 0-0 9.0-0 Nbd7 10.Nc3 Re8 11.Nh4 (11.Nd4 Bg6=) 11...Bg6 (11...Be6 12.Nf3=) 12.f4 (12.Ng6 hg6 13.Rc1 Nb6+=) 12...Ne4 (12...d4!? 13.ed4 Be4=) 13.Ng6+= hg6 14.Ne4 de4 15.f5 (15.d3 Nf6+=) 15...Qh4 16.h3?? (better 16.g3 Bg3 17.hg3 Qg3 18.Kh1 gf5 19.Bc4 Qh3 20.Kg1=) 16...Qg3-+ 17.Bg4 (17.Rf4 gf5 18.Rf5 Qh2 19.Kf1-+) 17...Qh2 18.Kf2 Bg3 19.Ke2 Qg2 (19...Qg2 20.Rf2 Qf2) 0-1. carlos78 (2175) - Lamaindedieu (2120), Rated Blitz game, lichess.org, 2015.

8.Be2 0-0 9.d3 Qe7 10.Nbd2 (10.Qd2 Re8= 11.0-0 Nbd7 12.Rc1 Bg4 13.Nc3 Qe6 14.Qc2 Rad8=) 10...Nbd7 (10...a5 11.ba5 Ra5 12.0-0+= Nbd7 13.Nd4 Bg6 14.a4 Re8+=) 11.0-0= (11.Nd4 Bg6 12.0-0 Rfe8 13.Qc2 a5 14.b5 c5=) 11...Ne5 (11...Rfe8 12.Nb3= Bg4 13.Rc1 Rac8 14.Re1 b6=) 12.Ne5 (12.Be5 Be5 13.Ne5 Qe5 14.Nf3 Qd6=) 12...Be5 13.Be5 Qe5 14.Nf3 (14.d4 Qe6=) 14...Qe7 (14...Qd6=) 15.Qd2 Bg4 16.Nd4 Be2 17.Qe2 Rfe8 18.Rfc1 a6 19.Rab1 Qe5 (19...a5 20.Qd2=) 20.Rc2 (20.Qf3 Qg5=) 20...Nd7 (20...Qg5 21.Rbc1=) 21.Qg4 Rad8 22.Qg3 (22.Rbc1 Nf6 23.Qf3 Qg5=) 22...Nb6 (22...Qg3 23.hg3 Ne5 24.Rc3=) 23.Qe5 Re5 24.Nb3 Nc8 25.a4 Nd6 26.Nd4 Rc8 27.Rbc1 Nf5 (27...Ree8 28.Kf1+=) 28.Nf5 Rf5 29.Rc5 (29.b5 ab5 30.ab5 Rf6+=) 29...Rd8+= 30.b5 ab5 (30...cb5!? 31.ab5 Kf8+=) 31.ab5+/– Kf8 32.bc6 bc6 33.d4 (33.Rc6 d4 34.Rc8 Rfd5+/–) 33...Rf6 34.Rc6 Rc6 35.Rc6 Ke7 36.g4 Ra8 37.Kg2 Kd7 38.Rb6 Kc7 39.Rb2 Kc6 40.h4 Re8 (40...h5 41.gh5 Rh8 42.Kg3+/–) 41.Ra2+– Kb6 42.Rc2 Rd8 43.Rc5 f6 44.g5 fg5 45.hg5 h5 (45...Kb7+–) 46.gh6! gh6 47.Kg3 (47.f4 Rd6+–) 47...Rg8 48.Kh3 Rf8 49.Kg2 Rf5?? (49...Rd8 50.f4 Rd7+–) 50.f4+– 1–0. Lapshun,Yury (2390) – Adu,O (2260), Richard Aronow Mem, Philadelphia USA, 2002.

8.Be2 a5 9.b5 c5 (9...0-0 10.0-0 c5 11.d3 Nbd7 12.Nc3 Re8 13.Rc1 Rc8 14.Re1 Qc7=; 9...Qe7 10.0-0 0-0 11.Nd4 Bd7 12.Qc2 Re8 13.Nf5 Bf5 14.Qf5 Nbd7=; 9...Bg4 10.0-0 0-0 11.Nc3 Re8 12.bc6 bc6 13.d4 Nbd7 14.Qc2 Qb8=; 9...Ra7 10.0-0 c5 11.Bf6 Qf6 12.Nc3 Qe6 13.b6 Ra8 14.Qb3 Nd7+/–) 10.0-0 0-0 11.d3 Re8 12.Nc3 Nbd7 13.Rc1 Rc8 14.Re1 Qc7 =.

8.Be2 Nbd7 A) 9.0-0 a5 (9...Qc7 10.Nc3 a5 11.b5 0-0 12.Rc1 c5 13.d4 c4 14.Nd5 Nd5+=; 9...Qb8 10.h3 0-0 11.Nc3 a5 12.b5 c5 13.d3 b6 14.Qc2 Re8=; 9...Bg6 10.Nh4 Ne4 11.g3 0-0 12.f4 h6 13.Ng6 fg6 14.Nc3 Nc3=; 9...Bg4 10.Nc3 0-0 11.h3 Bf3 12.Bf3 Nb6 13.d3 Re8 14.Qc2 Qe7=; 9...Qb6 10.Nh4 Be4 11.d3 Bg6 12.Bd4 Qc7 13.f4 a5 14.ba5 c5=) 10.b5 c5 11.Nc3 0-0 12.d3 Re8 13.Qb3 Nb6 14.Rac1 a4+=; B) 9.Nc3 Ne4 (9...0-0 10.0-0 a5 11.b5 c5 12.d3 Re8 13.Rc1 Qe7 14.Re1 Rad8=; 9...Qe7 10.Nd4 Bg6 11.f4 Ne4 12.0-0 Nc3 13.Bc3 Be4 14.d3 Bg6+/–; 9...Bg4 10.0-0 0-0 11.h3 Bf3 12.Bf3 Nb6 13.d3 Re8 14.Qc2 Qe7=; 9...Ne5 10.Ne5 Be5 11.0-0 0-0 12.Na4 Bb2 13.Nb2 Ne4 14.Rc1 Qg5=; 9...a5 10.b5 c5 11.0-0 0-0 12.d3 Re8 13.Rc1 Qe7 14.Qa4 Nb6=) 10.Nd4 Qh4 11.g3 Ng3 12.Nf3 Qh3 13.fg3 Bg3 14.hg3 Qh1+=; C) 9.Nd4 Be6 (9...Be4 10.0-0 0-0 11.f3 Bg6 12.f4 h6 13.Nc3 a5 14.Qb3 ab4=; 9...Bg6 10.f4 c5 11.bc5 Nc5 12.0-0 Qb6 13.Bc3 Bd3 14.Bd3 Nd3+=) 10.f4 Nb6 11.Ne6 fe6 12.Bd4 0-0 13.0-0 Qc7 14.Nc3 e5=.

8.Be2 Qe7 A) 9.Nd4 Qe4 (9...Bg6 10.f4 h6 11.f5 Bh7 12.0-0 Be5 13.Qc2 Qd6 14.g3 0-0=; 9...Be6 10.f4 a5 11.b5 0-0 12.0-0 c5 13.Ne6 fe6 14.Nc3 Nbd7=; 9...Be4 10.Nc3 a5 11.Ne4 Qe4 12.Bf3 Qg6 13.b5 0-0 14.bc6 bc6+=; 9...Bc8 10.0-0 0-0 11.Qc2 a5 12.b5 c5 13.Nf5 Bf5 14.Qf5 Qe6=; 9...Bd7 10.0-0 0-0 11.Qb3 Re8 12.Nc3 b5 13.a4 ba4 14.Na4 Ne4=) 10.0-0 Bd7 11.Nc3 Qg6 12.f4 0-0 13.Rf3 a5 14.Rg3 Qh6=; B) 9.0-0 Bd7 (9...0-0 10.Nd4 Bd7 11.Qc2 a5 12.b5 Re8 13.Nf5 Bf5 14.Qf5 Nbd7=; 9...Bg6 10.Nc3 a5 11.b5 Nbd7 12.bc6 bc6 13.Qa4 Nb8 14.Nh4 Ne4=; 9...Bg4 10.Nd4 Be2 11.Qe2 Qe4 12.Nc3 Qg6 13.d3 0-0 14.Rfe1 a5=; 9...a5 10.Nd4 Bd7 11.ba5 Ra5 12.Qb3 b5 13.Rc1 0-0 14.Qc2 Re8=; 9...Be4 10.d3 Bf3 11.Bf3 0-0 12.Nc3 Re8 13.Re1 Nbd7 14.b5 a6=) 10.Nc3 0-0 11.Qc2 Re8 12.Rfe1 b5 13.Rec1 a5 14.Na2 ab4+=; C) 9.Nc3 a5 (9...0-0 10.0-0 a5 11.b5 Re8 12.bc6 bc6 13.Qa4 Ra7 14.d3 c5=; 9...Nbd7 10.Nd4 Bg6 11.f4 Ne4 12.0-0 f6 13.Bg4 0-0 14.Nf5 Bf5+=; 9...Bg4 10.Nd4 Be2 11.Nce2 0-0 12.Nf5 Qd8 13.0-0 a5 14.b5 cb5=; 9...Bg6 10.Nh4 d4 11.Ng6 hg6 12.ed4 g5 13.Qb3 Rh2 14.Rh2 Bh2=; 9...Be6 10.Nd4 0-0 11.0-0 b5 12.a4 ba4 13.Na4 a6 14.Nc5 Bc5=) 10.b5 0-0 11.0-0 c5 12.d3 Nbd7 13.Rc1 Rae8 14.Qa4 b6=.

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    Available lines:
  • 1.b4 (4 players, 1 day/move)
  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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