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TESTJ300 Release 2023-07-05
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7

Table of contents:

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4.a3 a5 5.b5 c5 6.a4 d5 7.e3 0-0 8.d4 Nbd7 9.c4 dc4 10.Bc4 cd4 11.Bd4 Nb6 12.Ba2 Nbd5 13.Nc3 Nb4 14.Bb3 Bg4 15.0-0 Rc8 16.Rc1 (16.h3 Bf5 17.Re1=) 16...Re8 (16...e5 17.Ba7 Nd3 18.Bb6-/+) 17.h3 (better 17.Bf7!? Kf7 18.Ne5 Kg8 19.Ng4 Ng4 20.Qg4 Bd4 21.ed4+=) 17...Bf3=+ 18.Qf3 e5 19.Ba7 (19.Qb7? Rc7 (19...ed4?! 20.Bf7 Kh8 21.Be8=) 20.Bb6 Rb7 21.Bd8 Rd8-+) 19...Ra8 (better 19...e4 20.Qd1 Nd3=) 20.Qb7?? (better 20.Rfd1 Qe7 21.Ne4 Ne4 22.Qe4 Ra7 23.b6+/-) 20...Re7-/+ 21.Bb6 Rb7 22.Bd8 Rd8 23.Rfd1 Re8 (23...Rbd7 24.Rd7 Rd7 25.Na2 Na2 26.Ba2-+) 24.Nd5 Nfd5 25.Bd5 Nd5 26.Rd5 Rbe7 (26...e4 27.Rc6-+) 27.Rc6-/+ e4 28.b6 Rb7 (better 28...Ra8!?-/+) 29.Ra5= Reb8 (29...f5 30.Rb5 Kf7 31.a5+/-) 30.Rb5+= Bf8 (30...Kf8!?+=) 31.a5+/- h5?? (better 31...Ra8+/-) 32.a6+- Rd7 33.a7 Ra8 (33...Rb6 34.a8Q Rb5+-) 34.b7 Rb7 35.Rb7 Bg7 (35...h4 36.Rcc7 Rd8 37.Rf7 Rd1 38.Kh2+-) 36.Rcc7 (better 36.Rb8 Kh7 37.Ra8 Kh6+-) 36...Kh7 (36...Bf8 37.Rb8 Ra7 38.Ra7+-) 37.Rf7 Kh6 38.Rg7 Kg5 39.Rh7 (39.Rb6 Rd8 40.Rgg6 Kf5 41.g4 hg4 42.hg4 Ke5 43.Rg5) 39...Kf5 40.Rhg7 Ke5?? (40...Kg5 41.Rb6 Rd8 42.Rgg6 Kf5 43.g4 hg4 44.hg4 Ke5 45.Rg5) 41.Rb8+- Kd5 42.Ra8 Kc4 (42...g5 43.Rd8 Ke6 44.a8Q Kf6 45.Qa1 Ke6 46.Qa6 Ke5 47.Rg5) 43.Rb8 (43.Rd7 Kc5 44.Rc8 Kb6 45.a8Q g5 46.Rb7) 43...Kd3 (43...Kd5 44.a8Q Kc5 45.Rd7 g5 46.Qd5) 44.a8Q Ke2 45.Qb7 (45.Qa2 Kd3 46.Rd7 Kc3 47.Qb3) 45...g5 46.Qe4 g4 (46...Ke1 47.Qd3 g4 48.Rb1) 47.Qf5 (47.Qc2 Ke1 48.Rb1) 47...gh3 (47...Ke1 48.Qd3 gh3 49.Rb1) 48.Qh5 (48.Qc2 Ke1 49.Rb1) 48...Kd3 (48...Ke1 49.Rb1 Kd2 50.Qd1 Kc3 51.Rc7) 49.gh3 (49.Qd5 Ke2 50.Rb2 Ke1 51.Qd2) 49...Kd2 (49...Ke4 50.Rg4 Kd3 51.Rd4 Kc3 52.Qc5) 50.h4 (50.Rd7 Kc3 51.Qc5) 50...Ke1 (50...Kd3 51.Qd5 Ke2 52.Rb2 Ke1 53.Qd2) 51.Qg4 (51.Rb1 Kd2 52.Qd1 Kc3 53.Rc7) 51...Kd2 52.e4 (52.Qd4 Ke2 53.Rb2 Kf3 54.Qd5) 52...Ke1 (52...Kd3 53.Rd7 Kc4 54.Qe6 Kc5 55.Qd5) 53.e5 (53.Rb1 Kd2 54.Qd1 Kc3 55.Rc7) 53...Kd2 54.e6 (54.Qd4 Ke2 55.Rb2 Kf3 56.Qe3) 54...Kc3 (54...Kd3 55.Rd7 Kc3 56.Qf3 Kc4 57.Qc6) 55.e7 (55.Qd1 Kc4 56.Rc7) 55...Kd2 (55...Kd3 56.Qd1 Kc4 57.e8Q Kc5 58.Rc7) 56.e8Q Kc1 (56...Kc2 57.Qge2 Kc3 58.Q8e5) 57.Qgd7 Kc2 58.Qec8 1-0. Kostenko (2270) - almasssss (2330), Rated Bullet game, lichess.org, 2022.

4.a3 a6 5.e4 Rg8 (5...d6 6.Bd3=) 6.Bc4 (6.e5!? Nd5 7.c4+=) 6...Ne4+= 7.Bg7 Rg7 8.Qe2 (8.Bd5 Nf6 9.Nc3 c6+=) 8...Nd6 (8...d5 9.Bd3 Nf6 10.0-0+=) 9.Bb3 b6 10.0-0 c6 (10...Bb7 11.d4=) 11.Re1 Kf8 12.Nc3 f6 13.Ne4 (13.d4 e6=) 13...Ne4 14.Qe4 Bb7 (14...d5 15.Qe3=) 15.Qf4 d6 (15...g5 16.Qe3 d5 17.d4=) 16.Ng5+= h6?? (better is 16...Bc8 17.Be6 h6+=) 17.Ne6+– Kf7 18.Nd8 Ke8 19.Nb7 Kd7 20.Qe4 (20.Re7 Re7 21.Qd6 Kc8 22.Qe7 Nd7 23.Qd8 Kb7 24.Qd7 Kb8 25.Re1 a5 26.Re8) 20...e5 21.d4 (21.Qh4 Kc7 22.Nd6 Nd7 23.Qh6 Re7+–) 21...Ra7 22.Nd6! Kd6 23.de5 Ke7 24.ef6 Kf6 (24...Kd7 25.fg7 Kc7 26.Qe7 Nd7 27.Rad1 b5 28.Rd7 Kb6 29.Qc5) 25.Qe5 1–0. vitorcosta – samantho, net–chess.com, 2018.

4.a3 b6 5.e3 Bb7 6.Qc1 Bf3 7.gf3 d6 8.e4 e5 9.d4 ed4 10.Bd4 Nbd7 11.Nd2 c5 12.Bb2 Qe7 13.Bd3 0-0-0 14.bc5 dc5 15.Ba6 Kb8 16.Nc4 Nd5 17.Bg7 Rhg8 18.Be5 Ne5 19.Ne5 Qe5 20.0-0 Nf4 21.a4 Qg5 0–1. Adamkosh (1900) – cape_town21, lichess.org, 2019.

4.a3 c6 5.c4 0-0 6.d3 d6 7.Nc3 Qb6 8.Ne4?? d5 (better is 8...Ne4 9.d4 a5–+) 9.c5 Qc7 10.Nf6 ef6 11.Bf6?? (better is 11.e3+=) 11...Bf6–+ 12.d4 b6 13.e3 bc5 14.bc5 Nd7 15.Qc2 Nc5?? (better is 15...Rb8–+) 16.Bd3?? (better is 16.Qc5 Be7 17.Qc3=) 16...Nd3 (16...Qa5 17.Kd1–+) 17.Qd3 a5 18.Ne5 c5 19.Ng4 Bg7 20.h3 cd4 21.ed4 Bf5 22.Qd2 Rfe8 23.Ne3 Qc4 24.Rc1 Qd4 25.Qe2 Qa4 26.0-0 d4 27.Qc4 Qc4 28.Nc4 d3 29.Rcd1 Rec8 30.Ne3 Be4 31.f3 Bd4 32.Kf2 Be3 33.Ke3 Bf5 34.g4 Re8 35.Kf4 Bd7 36.Rd3 Bb5 37.Rfd1 Bd3 38.Rd3 Kg7 39.Kg5 h6 40.Kh4 Re2 41.f4 Rae8 42.g5 h5 43.Rd7 R2e4 44.Kg3 Re3 45.Kh4 R8e4 (45...R8e4 46.Rf7 Kf7 47.a4 Rf4#) 0–1. Nautiluschess – Pena, ICS blitz, 2001.

4.a3 Nc6 5.e3 d6 6.Bb5 Bd7 7.0-0 a6 8.Bc4 b5 9.Bb3 0-0 10.Nc3 e6 11.d4 Ne7 12.e4 h6 13.Re1 Nh7 14.Bc1 (14.Qd3 Nc6+=) 14...c6 (14...c5!?=) 15.Qd3 Qb6 16.Be3 Qc7 17.Qd2 g5 18.h4 f6 19.e5 Nf5 (19...de5 20.de5 Decoy; 19...fe5 20.hg5 Deflection) 20.ef6 (20.ef6 Bf6 21.hg5 hg5 22.Ne4+/- (22.Bg5?! Ng5 23.Ng5 Nd4=)) 1–0. Baeza Martinez,Carlos – Sanz Guardiola,Jaime, Valencia Autonomico–B, 2004. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

4.a3 d5 5.g3 0-0 6.Bg2 Bg4 7.0-0 Qc8 8.d3 Bh3 9.Nbd2 Bg2 10.Kg2 c6 11.c4 e6 12.Rc1 Nbd7 13.Qb3 a6 14.e4 de4 15.de4 Qd8 16.Rfd1 Qe7 17.c5 Rfd8 18.Nc4 White intends e5 (18.e5 Nd5 19.Nc4+=) 18...Nf8 (18...Ne4!? 19.Bg7 Kg7=) 19.e5 (better 19.Nd6+/-) 19...Rd1?? (19...Nd5 20.Nd6+=) 20.Rd1 (better 20.ef6 Rd3 21.Qd3 (21.fe7?! Rb3 22.Bg7 Kg7+-) 21...Bf6 22.Bf6 Qf6 23.Rd1+-) 20...Nd5+/- 21.Nd6 Nd7 22.Nd2 (22.Bd4 b5 23.cb6 Rb8+/-) 22...Rb8 (better 22...Ne5!? 23.Be5 Be5=+) 23.N2c4 b5? (23...b6 24.Nb6 N5b6 25.cb6 Nb6 26.Qc2+/-) 24.cb6 (24.Na5!? Rf8 25.Nc6 Qg5+-) 24...N7b6 (better 24...Be5!? 25.Be5 Ne5 26.Ne5 Qd6=) 25.Na5+/- Qc7 26.Rc1 Ne7 27.Qf3 Nbd5?? (better 27...Rf8+-) 28.Qf7 Kh8 29.Nc6! (29.Nc6 Nc6 30.Qc7 Nc7 31.Rc6+-) 1-0. black_bishop_88 (2505) - sever2009 (2470), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

4.a3 Nh5 5.Qc1 0-0 6.c4 d5 (6...d6 7.Bg7 Ng7 8.d4=) 7.cd5 (7.Bg7 Ng7 8.cd5 c6+=) 7...Qd5 (7...Bb2 8.Qb2 Qd5 9.d4+=) 8.e3 (8.Bg7 Ng7 9.Qc7 Nc6+/-) 8...Nc6 (8...Bg4 9.Bg7 Kg7 10.Be2+=) 9.b5 Ne5 10.Be2 (10.Be5 Be5 11.Nc3 Qd6+=) 10...Bg4 (10...Nf3 11.Bf3 Qb5 12.Bg7 Ng7 13.Qc7 Ne6=) 11.Ne5 (better 11.Be5 Be5 12.Nc3 Bc3 13.Qc3+=) 11...Be2-/+ 12.Ng6? (better 12.Ke2 Be5 13.Be5 Qb5 14.d3 Qe5 15.Qc3-/+) 12...fg6-+ (12...hg6 13.Nc3 Qc4 14.Ne2 Qc1 15.Rc1 Bb2 16.Rc7 Ba3 17.Rb7-+) 13.Ke2 (13.Bg7 Bb5 14.f3-+) 13...Qg2 (better 13...Qb5 14.Ke1 Bb2-+ (worse 14...Qb2 15.Qb2 Bb2 16.Ra2-+)) 14.Rf1 Qh2 15.Nc3?? (better 15.Kd1 Bb2 16.Qb2-+) 15...Ng3 16.Kd3 Rad8 17.Kc2 Nf1 18.Qf1 Rf2 19.Qc4 Kh8 20.Ne4 (20.Ne2 Re2 21.Bg7 Kg7 22.Kb3 Red2 23.Qc3 e5 24.Ka4 Qh4 25.Qb4-+) 20...Rfd2 21.Nd2 Qd2 22.Kb3 Qb2 23.Ka4 a6 24.ba6 Ra8 25.Rc1 Ra6 26.Qa6 ba6 27.Rc7 (27.Rc5 Bc3 28.Rc3 Qb5) 27…Qb5 0-1. javmatamala (2055) - zsolti_83 (2490), Rated Bullet game, lichess.org, 2019.

4.b5 a6 5.e4 d6 6.ba6 Na6 7.d3 c5 8.Be2 0-0 9.0-0 b5 10.a4 b4 11.Nbd2 Bb7 12.Qc1 Rb8 13.a5 Qc7 14.e5 de5 (better is 14...Nd5!?=) 15.Be5+/- (15.Be5 Qd7 16.Bb8 Rb8 17.Nc4+/-; 15.Ne5?! Nd5 16.Ndc4 f6=) 1–0. Bonetti,Shane – Mre, ICC, 2002.

4.b5 b6 5.e4 Bb7 (5...a6 6.e5 Nd5 7.c4=) 6.e5 Nd5 7.Bc4 (7.c4 Nf4=) 7...e6 8.0-0 0-0 9.d4 (9.Bd5 Bd5 10.Nc3 Bb7=) 9...d6 (9...f6 10.Ba3 Rf7 11.Re1=) 10.Ba3 (10.Bd5 Bd5 11.Qe2 a6=) 10...Re8 (10...a6 11.ba6 Na6 12.Re1+=) 11.Bb3 (11.Re1 de5 12.de5 a6=) 11...de5 12.Ne5 (better is 12.de5!? Nf4 13.Nbd2+=) 12...Nf4-/+ 13.Nf3 c5 (13...Bd4 14.c3 (14.Nd4?? Qg5 15.Bd5 Bd5 16.Qf3 Bf3 17.Nf3 Qg2) 14...Bg7 15.Bc1–+) 14.bc6-/+ Nc6 15.c3 Rc8 (15...Nd4 16.cd4 (16.Nd4?? Qg5 17.Bd5 Bd5 18.Qf3 Bf3 19.Nf3 Qg2) 16...Bd4 17.Nbd2 (worse is 17.Nd4 Qg5 18.Bd5 Bd5 19.Qf3 Bf3 20.Nf3 Qg2) 17...Ba1 18.Qa1 Ng2 19.Qe5+=) 16.Bb2 (16.Re1 a6+=) 16...Ba6 17.c4? (17.Re1 Nd3 18.Re2 e5-/+) 17...Na5 (17...Nd4 18.Bd4 Bd4 19.Nd4 Qd4 20.Qd4 Ne2 21.Kh1 Nd4 22.Na3–+) 18.Na3 (18.Ba4 Re7 (18...Bc4?! 19.Be8 Bf1 20.Bf7 Kf7 21.Kf1+=) 19.Bb5 Bb7–+ (19...Nc4 20.Ba6 Nb2 21.Qd2+=)) 18...Nc4–+ 19.Nc4 Bc4 (19...Rc4?! 20.Bc4 Bc4 21.Re1+=) 20.Bc4 Rc4 21.Qb3 Qd5 22.Qe3 Rc2 (22...Bh6!? 23.Qa3–+) 23.Qf4-/+ Rb2 24.Ne5 Be5 25.de5 Qd2 (25...Re2 26.Rfe1 Qd2 27.Qd2 Rd2 28.Kf1-/+) 26.Qa4 Ra8 27.Qc6 (27.Rad1 Qc2 (27...Ra2? 28.Qc6 Rd8 29.Rd2 Rdd2 30.g4+–) 28.Qh4 A) 28...Ra2?! 29.Rd8 Rd8 30.Qd8 Kg7 31.Qf6 Kf8 32.Qd8 Kg7 33.Qf6 Kh6 A1) worse is 34.Qf7 Qf5 35.Qe7 b5+= (35...Qe5?! 36.Qf8 Qg7 37.Qf4 g5 38.Qc4=); A2) 34.Qh4 Kg7 35.Qf6=; B) 28...Qf5-/+) 27...Rd8 (27...Qd5 28.Qd5 ed5 29.f4-/+) 28.Qc7 (28.Qa4 Qd4 29.Qa7 Qe5-/+) 28...Qd7–+ 29.Qc3 Rd2 30.h3 Qd4 31.Qd4 R8d4 32.f4 (32.a3 Re4–+) 32...Rc2 33.g3? (33.Kh2 Rdd2 34.Rg1 Ra2 35.Ra2 Ra2–+) 33...Rdd2 (33...Rd3 34.Rf2 Rg3 35.Kh2–+) 34.Rfd1 (34.Rf3–+) 34...Rg2 35.Kf1 Rg3 (35...Ra2?! 36.Ra2 Ra2 37.Rb1–+) 36.Rd8 (36.Rdc1 Rb2 37.Rcb1 Rh2–+) 36...Kg7 37.Ra8 (37.a4 Rh3 38.Kg1 Rg3 39.Kh1 Rc4–+) 37...Rh3 38.Kg1 Ra3 0–1. Nikitina,Zoya N (1735) – Guseva,Antonina (1695), Open Tver Region Championship, 2014.

4.b5 d5 5.e3 Nbd7 6.d4 0-0 7.Be2 Nb6 8.Nbd2 (8.0-0 Bf5=) 8...Qd6 (8...Bg4 9.0-0=) 9.0-0 (9.a4 a6=) 9...Na4 10.Rb1 Nb2 (10...Bf5 11.Nh4=) 11.Rb2 b6 (11...a6 12.ba6 b6 13.c4=) 12.Bd3 (12.c4 a6=) 12...Bb7 (12...a6 13.c4=) 13.Qb1 (13.c4 c5=) 13...Nd7 (13...a6 14.c4=) 14.Rc1 (14.c4 c5 15.bc6 Bc6 16.cd5 Bd5+=) 14...e5= 15.de5 Ne5 16.Rb3 (16.Nd4 a6=) 16...Nf3 (16...a6 17.Ne5 Qe5 18.ba6 Ba6 19.Ba6 Ra6 20.c4=) 17.Nf3 d4 (17...a6 18.ba6 Ba6 19.Rd1=) 18.e4 (better is 18.Nd4!? Bd4 19.ed4 Qd4 20.Rb4=) 18...Rfe8 19.Nd2 (19.c3 dc3 20.e5 Be5 21.Ne5 Re5 22.Rbc3 Rae8+=) 19...Qf4 (19...Bh6 20.Nc4 Qf4 21.Re1-/+) 20.Rd1+= Be5 21.g3 Qg4 22.f3 Qh3 23.Bf1 Qh6 24.Nc4 Rad8 25.Qc1 Bg7 26.Qf4 Qf4+= 27.gf4 Bh6 28.f5 gf5-/+ 29.e5 Bf3?? 30.Rf3+– 1–0. mic (2140) – powerpragt (2355), net–chess.com, 2008.

4.Qc1 c6 5.e3 d5 6.c4 Na6 7.a3 Nc7 8.Be2 Be6 9.Nd4 Bd7 10.Nc3 0-0 11.f4 Bg4 12.Bg4 Ng4 13.Nf3 dc4 14.0-0 b5 15.h3 Nh6 16.Ne4 Nf5 17.Bg7 Kg7 18.Qc3 f6 19.g4 Nd6 20.Nc5 Rb8 21.Nd4 Qc8 22.Nc6 Nd5 23.Qd4 Qc6 24.Ne6 Kf7 25.Nf8 Rf8 26.g5 Nf5 27.Qb2 Nde3 28.de3 Ne3 29.Rfe1 Nf5 30.Qf2 fg5 31.Re5 Kg7 32.Rae1 Nh4 33.Re7 Rf7 34.Qb2 Kg8 35.Re8 Rf8 36.Rf8 Kf8 37.Qh8 Kf7 38.Qh7 Kf6 39.Qe7 Kf5 40.Qg5 1–0. Adamkosh (1925) – voron24 (1870), lichess.org, 2019.

4.c3 Nc6 5.e3 a6 6.Be2 d5 7.0-0 0-0 8.a4 Bf5 9.d3 e5 (9...Qd6 10.Nbd2=) 10.Nbd2 (10.b5!? ab5 11.ab5 Ra1 12.Ba1+=) 10...e4= 11.de4 de4 12.Nd4 Nd4 13.cd4 Nd5 14.Bg4 (14.Qb3 c6=) 14...Qg5 15.Bf5 Qf5 16.h3 Nb4 17.Ba3 a5 18.Qg4 (18.Rb1 c5 19.dc5 Bc3=) 18...Rfe8 (18...Qg4 19.hg4 c5 20.Ne4 cd4 21.ed4-/+) 19.Qf5+= gf5 20.Bb4 (20.Rab1 Bf8+=) 20...ab4-/+ 21.Rfc1 Rec8 22.Nb3 b6 23.Rc4 (23.Rc6 Bf8+=) 23...c5!-/+ 24.Ra2 (24.dc5 Ba1 Pinning (24...Ba1 Deflection)) 24...b5 (24...cd4!? 25.Rb4 de3 26.fe3 Ra6-/+) 25.Rc5+= Rc5 26.Nc5 Bf8 (26...ba4!? 27.Ra4 Ra4 28.Na4 b3+=) 27.a5+= Bd6 (27...Bc5!? 28.dc5 b3+=) 28.Nb3+/- Kf8 (28...Ra6 29.Kf1+/-) 29.a6 Bc7 (29...Ke7 30.a7+/-) 30.Nc5 (30.f3 Ke7+–) 30...Ke7+/- 31.Rb2 Ba5 32.g3 Kd6? (better is 32...h6+/-) 33.Nb7+– Kd5 34.Na5 Ra6 35.Nb3 Kc4 36.Nc5 (36.Rb1 Ra2+–) 36...Ra1 37.Kg2 h5? (37...Kc3 38.Rb3 Kc4 39.g4+–) 38.Rc2 Kd5 39.Rb2 (better is 39.Nb7!? Ke6 40.Rc6 Kd5 41.Rc5 Ke6 42.Re5 Kf6 43.Rb5 Rb1+–) 39...Kc4 40.Rc2 Kd5 41.Rb2 (better is 41.Nb7!? Ke6 42.Rc6 Kd7+–) 41...Kc4 42.Rc2?? (better is 42.g4 fg4 43.hg4 hg4+–) 42...Kd5 43.Rb2 (43.Nb7 Ke6 44.Rc6 Ke7+–) 43...Ra8?? (43...Kc4 44.g4 fg4 45.hg4 hg4+–) 44.Rb4+– Kc6 45.g4! fg4 (45...fg4 46.Ne4 Deflection; 45...hg4 46.h4 Passed pawn) 46.hg4 hg4 47.Ne4 f5 48.Nf6 (48.Nc3 Ra3 49.Nb5 Ra1+–) 48...Rh8 (48...Rf8 49.Nh5+–) 49.e4 fe4 50.Ne4 (worse is 50.Ng4 Rg8 51.f3 Kb6+–) 50...Rf8 51.Kg3 Rg8 (51...Kb6 52.Kg4 Ka5 53.Rb2+–) 52.Nf6 (52.Nc3 Kd7+–) 52...Rd8 (52...Ra8 53.Kg4 Ra4 54.d5 Kc7 55.Rf4+–) 53.Kg4 Rd6 (53...Kb6 54.d5+–) 54.Kg5 (54.Kf5 Rd8+–) 54...Kb6 55.f4 (better is 55.Ne4 Rd5 56.Kf4 Ka5+–) 55...Ka5 56.Rb1 Rd4 57.f5 b4 58.Ng4 Rd8 59.f6 Rg8 60.Kf5 Ka4 61.f7 Rc8 (61...Rf8 62.Ke6+–) 62.Ne5 Ka3 (62...b3 63.Kf6+–) 63.Nd7 (better is 63.Nc4! Ka2 64.Rb4+–) 63...b3 64.Rf1 b2 65.f8Q (better is 65.Nb6 Rf8 66.Ke6+–) 65...Rf8= 66.Nf8 Ka2 67.Ke5 b1Q 68.Rb1 ½–½. mpopp – vitorcosta, net–chess.com, 2018.

4.Nc3 d5 5.g3 (5.e3 0-0+=) 5...Nc6 (5...0-0 6.Bg2+=) 6.Bg2 (6.b5 Na5 7.d3 a6+=) 6...0-0 (6...Nb4 7.0-0-/+) 7.0-0 (7.b5 Na5 8.d3+=) 7...e5 (7...Nb4 8.Ne5-/+) 8.d3 (better is 8.b5!? Nd4 9.Ne5+=) 8...e4-/+ 9.de4 (9.Nh4 g5 10.de4 de4–+) 9...de4 (9...Ne4!? 10.Na4 Bb2 (10...Nb4? 11.Bg7 Kg7 12.Qd4 Qf6 13.Qb4+–) 11.Nb2 Re8-/+) 10.Ng5+= Nb4 11.Nce4? (11.Nge4!? Ne4 12.Be4+=) 11...Qd1 (11...Ne4 12.Bg7 Ng5 13.Bf8 Qf8 14.Qd2 Nh3 15.Kh1–+) 12.Rad1 (12.Rfd1 Ne4 13.Bg7 Ng5 14.Bf8 Kf8-/+) 12...Ne4 13.Be4? (better is 13.Bg7 Ng5 14.Bf8 Kf8 15.Rb1–+) 13...Bb2–+ 14.Rb1 Bc3 15.Rb3 Na2 16.Ra3 (16.Bb7 Rb8 17.Rfb1 Bg7 18.Bc8 Rbc8–+) 16...h6 (16...Bf6 17.Nh7 Kh7 18.Ra2–+) 17.Nf3 Be6 18.Bb7 (18.Rb1 a5 19.Rb7 Rfc8–+) 18...Rab8 (18...Bb4!? 19.Ra4 Rab8 20.Nd4 Rb7 21.Ne6–+) 19.Ra7 Nb4 (19...c5 20.Rb1–+) 20.Be4 c6 21.Rc7 (21.Ra3 Bb2 22.Ra5 f5–+) 21...Rfc8 22.Rc8 Bc8 23.Rb1 c5 24.Rb3 Bf6 25.c3 Na6 26.Rb8 Nb8 27.c4 Be6 28.Bd5 Bd5 29.cd5 Kf8 30.e4 Ke7 31.e5? Bg7 32.Kf1 Nd7 33.d6 Ke6 34.h4 Ne5 35.Ne5 Be5 0–1. gbsrao (2125) – ghorn (2210), net–chess.com, 2007.

4.c4 c6 5.e3 a5 6.b5 cb5 7.cb5 a4 8.Be2 0-0 9.0-0 d6 10.a3 Nbd7 11.Nc3 Nb6 12.d3 Bd7 13.Qd2 Ne8 14.Rab1 Nc7 15.Rfc1 e5 16.d4 Bf5 17.e4 Bg4 18.de5 Bf3 19.Bf3 Nc4 20.Qe2 Nb2 21.Rb2 Be5 22.Rbb1 Ne6 23.Nd5 Nf4 24.Nf4 Bf4 25.Rc4 Qb6 26.Qc2 Ra5 27.Ra4 Rb5 28.Rb5 Qb5 29.g3 Be5 30.Rb4 Qc5 31.Qa4 b6 32.Be2 Qa5 33.Qa5 ba5 34.Rb5 Ra8 35.a4 Bc3 36.Rb7 Bd4 37.Bc4 Ra7 38.Bf7 Kg7 39.Ra7 Ba7 40.Bd5 Kf6 41.Kg2 g5 42.Kf3 Bc5 43.Bc6 h6 ½–½. Smyslov – Fernandez Garcia, Buenos Aires 1990.

4.c4 d6 5.e3 b6 6.Be2 Bb7 7.0-0 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6).

4.c4 e6 5.e3 0-0 6.a3 d5 7.d4 b6 8.Nbd2 Bb7 9.Be2 dc4 10.Bc4 Nbd7 11.0-0 c5 12.bc5 bc5 13.dc5 Nc5 14.Rb1 Nd3?? (better is 14...Rc8=) 15.Bf6+– Bf6 16.Rb7 Ne5 1–0. pierred (2795) – tomy (2410), net–chess.com, 2016.

4.d3 b5 5.Nbd2 Bb7 6.Nb3 0-0 7.e4 d5 8.e5 Ng4 9.Na5 Bc8 10.Qd2 Ne5? (better is 10...f6 11.d4 fe5 12.de5 c6=) 11.Ng5?? (11.Be5!? Be5 12.Ne5 f6+–) 11...Nec6?? (better is 11...Nf3! 12.Nf3 Bb2-/+) 12.Bg7+/- Kg7 13.Qc3?? f6?? 14.Nf3?? Na5–+ 15.ba5 e5 16.Be2 d4 17.Qc5 a6 18.Ne5? fe5 19.Qe5 Qf6 20.Qc7 Nd7 21.f3 Qh4 22.g3 Qh3 23.Bf1?? Re8 24.Kf2 Qe6 25.Re1 Qe1 26.Kg2 Re7 27.Qc6 Ne5 28.Qa8 Qd2 29.Kg1 Bb7 30.Qd8 Nf3 0–1. Sowell,Anthony – Hains,Jonathan, Internet Section, 2004. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7)

4.d3 c5 5.bc5 Qa5 6.Nbd2 Qc5 7.e3 0-0 8.Be2 d6 9.0-0 Nbd7 10.c4 b6 11.a4 Qc7 12.a5 Bb7 13.Qa4 Nc5 14.Qa3 e5 15.d4 ed4 16.Nd4 a6 17.Bc3 ba5 18.Ba5 Qe7 19.Rfd1 Nfd7 20.Bf3 Bf3 21.N2f3 Rfc8 22.Rab1 Ne5 23.Ne5 Be5 24.Nf3 Bg7 25.h3 Ne4 26.Qd3 Qe6 27.Nd4 Qe5 28.Be1 Nc5 29.Qa3 Ne6 30.Rbc1 Nc5 31.Bc3 Qe7 32.Ne2 Ne4 33.Bg7 Kg7 34.Nf4 Exerts pressure on the isolated pawn 34...Rc6 35.f3 Nf6 36.Rd4 Rac8 37.Kf2 Qe5 38.Nd3 Qe6 39.Qa5 Nd7 40.Qa1 Nf6 41.Qa4 Kg8 42.Nf4 Qe5 43.Qd1 a5 44.h4 Nd7 45.Rd5 Qf6 46.h5 Nb6 (worse is 46...Rc4 47.Rc4 Rc4 48.Ra5+=) 47.Ra5 Nc4 48.Raa1 Ne3 49.Ke3 Qe5 50.Kf2 Qf4 51.Rc6 Rc6 52.Ra4 Qe5 53.Re4 Qc5 54.Kg3 Qg5 55.Kf2 Qc5 56.Kg3 Qh5 57.Re8 Kg7 58.Qd4 Kh6 59.Re4 Qg5 60.Kh2 f6?? (better is 60...Rc5 61.Qd6 Rc2+=) 61.Rh4+– Kg7 62.Qa7 Kf8 63.Qh7 Rc5 (63...Qe5 64.f4 Qe4+–) 64.Qh8 Kf7 65.Rh7 Ke6 66.Qe8 Kd5 (66...Kf5 67.Qe4) 1–0. Grigoriev,A (2185) – Guseynov,A (2210), Kartal Open, 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.d3 c5)

4.d4 e6 5.Nc3 d6 (5...d5 6.e3=) 6.e4+= 0-0 7.Be2 (7.Bd3 c5 8.bc5 dc5+=) 7...c6 (7...c5 8.dc5 dc5 9.Qd8 Rd8 10.bc5=) 8.0-0+= d5 (8...c5 9.bc5 dc5 10.Rb1+=) 9.e5 Ne4 (9...Nfd7!?+=) 10.Ne4+/- de4 11.Nd2 e3 (11...a5 12.ba5 c5 13.Ne4 cd4 14.f4+/-) 12.fe3+– Nd7 13.Nc4 (13.c4 f6 14.ef6 Nf6+–) 13...b6 14.Nd6 c5 15.c3 cd4 16.cd4 Rb8 17.Qa4 a6 18.e4 Qg5 19.Qb3 b5 20.Rf2 Nb6 21.Raf1 Bb7 22.Rf7 Be4 23.Ne4 (23.Ne4 Qh6 24.Rf8 Bf8 25.Qe6 Kh8 26.Bc1+–) 1–0. marre – astriti, internet, 2010.

4.e3 b5 5.Bb5 Bb7 6.Be2 0-0 7.0-0 a6 8.c4 Nc6 9.a3 d5 10.c5 a5 11.Nd4 ab4 12.Nc6 Bc6 13.ab4 Ra1 14.Ba1 Qa8 15.Bf6 Bf6 16.Nc3 d4 17.ed4 Bg2 18.Re1 Bd4 19.Nb5 Bg7 20.Nc7 Qc6 21.Nb5 Bh3 22.f3 Rb8 23.Qa4 Bd7 24.Qa5 Rb5 25.Bb5 Qb5 26.Qb5 Bb5 27.Re7 h5 28.Rb7 Bc6 29.Rb8 Kh7 30.Kf2 Bd4 31.Kg2 g5 32.h3 g4 33.hg4 hg4 34.b5 Bf3 35.Kg3 Bc5 36.b6 Bd6 0–1. Abdullaevich – Suprize, lichess.org, 2018.

4.e3 e5 5.Be5+/- Nd5?? (better is 5...0-0+/-) 6.Bg7+– Rg8 7.Bc3 Nc6 8.a3 d6 9.Bb5 Nc3 10.Nc3 Bd7 11.0-0 Qf6 12.d4 0-0-0 13.a4 a6 14.Bc6 Bc6 15.b5 ab5 16.ab5 Bd7 17.Ra8 1–0. Fournier,Frederic (1690) – chessgaffeur (1870), 5 min +7s Chess16.com, 2008.

4.e4 a5 5.e5 Nh5 6.b5 a4 7.d4 d6 8.c4 de5 9.de5 Qd1 10.Kd1 Bg4 11.Be2 Nf4 12.Nbd2 Ne2 13.Ke2 0-0 14.h3 Be6 15.g4 Nd7 16.a3 Nb6 17.Rac1 Rad8 18.c5 Nd5 19.c6 b6 20.Nd4 Nf4 21.Kf3 g5 22.h4 Be5 23.Ne6 Bb2 24.Nd8 Bc1 25.Rc1 Rd8 26.hg5 Rd2 27.Kf4 Rf2 28.Kg3 Ra2 29.Rd1 Ra3 30.Kh4 Rb3 31.Rd8 Kg7 32.Rd7 Rb5 33.Rc7 Rc5 34.Ra7 b5 35.Ra4 ba4 0–1. Adjailton (1880) – rexcyrus (1800), lichess.org, 2020.

4.e4 b6 5.e5 Nd5 6.a3 Bb7 7.c4 Nf4 8.g3 Nh5 9.Bg2 0-0 10.0-0 a5 11.Qc2 d6 12.Re1 de5 13.Be5 Be5 14.Re5 Nd7 15.Rh5 gh5 16.Ng5 Nf6 17.Bb7 Ra7 18.Bg2 ab4 19.a4 h6 20.Ne4 Ne4 21.Be4 f6 22.Bg6 Qd4 23.Ra2 Rd8 24.Bh5 Qd3 25.Qd1 f5 26.Qe1 b3 27.Qe6 Kh8 28.Qh6 Kg8 29.Qg6 Kh8 30.Rb2 f4 31.Qh6 Kg8 32.Bg6 Qc4 33.Qh7 Kf8 34.Qh8 Qg8 35.Qh6 Qg7 36.Qf4 Kg8 37.Be4 Qb2 38.Qg5 1–0. Hgvanmoork (1835) – Scorpion66Se (1870), lichess.org, 2018.

4.e4 c5 5.b5 d5 6.d3 0-0 7.Be2 a6 8.a4 Nbd7 9.0-0 c4 10.Ne5 Ne5 11.Be5 ab5 12.ab5 Ra1 13.Ba1 Qb6 14.Na3 Qc5. Allen – Soltis, New York 1967.

4.e4 c6 5.Bc4 (5.Be2 0-0=) 5...d5 6.ed5 cd5 7.Bb5 (7.Be2 Qb6 8.a3 Ne4=) 7...Nc6 8.Ne5 (8.0-0 0-0 9.a3 a5=) 8...Qd6=+ 9.Qf3 (9.a3 0-0 10.Bc6 bc6=+) 9...0-0 (better 9...Qb4 10.Qb3 Qd6-/+) 10.Nc3?? (better 10.Bc6 bc6 11.Nd3-/+) 10...Qe5–+ 11.Be2 (11.Qe2 Qe2 12.Ne2 Nb4–+) 11...Bg4 (better 11...Nd4 12.Qg3 Qg3 13.hg3 Nc2 14.Kd1 Na1 15.Ba1–+) 12.Qg3 (12.Qe3 Qe3 13.fe3 Nb4–+) 12...Qe6 13.h3 (13.f3 Bf5 14.Qh4 d4–+) 13...Bh5 (better 13...Be2 14.Ne2 Nh5 15.Qe3 Qe3 16.de3 Bb2 17.Rb1–+) 14.Nb5 (14.Qe3 Qc8 15.d4–+) 14…Qe2 0–1. aravind555 – notone, lichess.org, 2018.

4.e4 Nh5 5.Bg7+= Ng7 6.d4 Nc6 7.b5 Na5 8.Qd2 c6 9.Qh6 0-0?? 10.Ng5 (10...Re8 11.Qh7 Kf8 12.Qh8#) 1–0. mrkt (2475) – TRUBLU (1775), ChessWorld.net, 2003.

4.Ne5 0-0 5.d3 d6 6.Nc4 c5 7.b5 d5 8.Ne3 d4 9.Nc4 Be6 10.Nbd2 Nbd7 11.a4 Nb6 12.g3 Nc4 13.Nc4 Bd5 14.f3 Bc4 15.dc4 e5 16.Bg2 e4 17.fe4 Re8 18.Qd3 Qe7 19.0-0 Ne4 20.Be4 Qe4 21.Qe4 Re4 22.Rae1 Rae8 23.Rf2 Bh6 24.c3 Be3 25.Bc1 Bf2 26.Kf2 dc3 27.Bf4 Rc4 28.Rc1 c2 29.e3 Rd8 30.Kf3 Rd1 31.e4 Rc1 32.Bc1 Rb4 33.Ke2 Rb1 34.Kd2 Rb4 35.Kc2 Re4 36.Bf4 Ra4 37.Kc3 Rf4 38.gf4 b6 39.Kc4 f6 40.Kd5 g5 41.fg5 fg5 42.Ke5 Kg7 43.Kf5 h6 44.Ke5 Kg6 45.Kd5 g4 46.Kc6 c4 47.Kb7 c3 48.Ka7 c2 49.Kb6 c1Q 50.Ka7 Qb2 51.b6 h5 52.b7 Qb7 53.Kb7 h4 54.Kc6 g3 55.hg3 hg3 56.Kd5 g2 57.Ke4 g1Q 58.Kf3 Qd4 59.Kg3 Kf5 60.Kh3 Qg4 61.Kh2 Kf4 62.Kh1 Kf3 63.Kh2 Qg2 0–1. Adjailton (1780) – gwaynelambert23 (1905), lichess.org, 2019.

4.g3 c5 5.bc5 Qa5 6.Bg2 Qc5 7.0-0 Nc6 8.Nc3 0-0 9.d4 Qh5 10.e4 d6 11.d5 Na5 12.Ne2 g5 (worse is 12...Ne4 13.Bg7 Kg7 14.Qe1 Qd5 15.Nf4+/-) 13.Qd3 b6 14.Ned4 Bd7 15.c4 Rac8 16.Rac1 Ng4 17.h3 Ne5 18.Ne5 Be5 19.Nf5 (19.f4!? gf4 20.gf4=) 19...Bf5+= (worse is 19...Bb2 20.g4 Bf5 21.gh5 Bc1 22.Rc1+/-) 20.Be5 Bh3 (worse is 20...de5 21.ef5 Rc7 22.c5 bc5 23.f6+/-) 21.Bb2 f6 22.f4 h6 23.Rf2 Bg2 24.Rg2 Qg6 (24...gf4 25.gf4 Kf7 26.e5 fe5 27.fe5+=) 25.Qd4 Kh7 26.e5 Qf5 27.ed6 ed6 28.fg5 hg5 (28...Qg5 29.Rf2 f5+= (29...Qg3?? 30.Rg2 Qf3 31.Rf1 Rc4 32.Rf3 Rd4 33.Bd4+–)) 29.Rh2 Kg7 30.Rf1 Qg6 31.Rhf2 Rc4 32.Rf6?? (better is 32.Qd2 Kh7 33.Rf6 (33.Bf6?! Kg8+/-) 33...Rf6 34.Rf6+– (34.Bf6?! Rc7+=)) 32...Rd4–+ 33.Rg6 Kg6 (33...Kg6 34.Bd4 Rf1 35.Kf1 Kf5–+) 0–1. Meszaros,An (2265) – Li Bo (2305), Kecskemet HUN, Caissa IM June, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2)

4.g4 Nh5 5.Bg7 (5.Qc1 Nf6=) 5...Ng7= 6.Bg2 d5 7.h3 h5 8.g5 h4 9.e3 Nd7 10.d4 c6 11.Nbd2 Qc7 (11...Rh5 12.Bf1=) 12.c4+= e5 (12...Ne6 13.Qb3+=) 13.de5 (13.cd5 cd5 14.de5 Ne5+/-) 13...Ne5+= 14.cd5 Nd3 15.Kf1 cd5 (15...Nb4 16.e4+=) 16.a3 (better 16.Qb3!? Ne5 17.Qd5 Nf3 18.Bf3+-) 16...Bf5 17.Nd4?? (better 17.Ne1=) 17...Qc3?? (17...Nf2 18.Kf2 Qg3 19.Kf1 Bd3 20.Ne2 Nf5-+) 18.Bd5+- (18.Nf5?! Nf5 19.Bd5 Nf2 20.Kf2 Qe3 21.Kf1 Qd3 22.Qe2 Ne3 23.Kf2 Qe2 24.Ke2 Nd5=+) 18...0-0 (18...Rd8 19.Ne4 (19.Bb7 Nf2 20.Kf2 Rd4=) 19...Be4 20.Be4+-) 19.Ne4 Be4 20.Be4 Ne5 21.Qc1 Rac8 22.Qc3 Rc3 23.Ke2 b6 24.Rhc1 Rfc8 25.Rc3 Rc3 26.a4 (26.Nb5 Rc4 27.Bd3 Rc6+-) 26...Ne8 (26...Ne6 27.Ne6 fe6 28.Rd1+-) 27.a5 Nd6 28.Bd5 Nec4 29.ab6 ab6 30.Bc4 (better 30.Ra7+-) 30...Nc4? (better 30...Rc4 31.Ra8 Kg7+-) 31.Ra8+- Kg7 32.b5 (better 32.Rc8!? Rc1+-) 32...Nd6 33.Rd8 (33.Rb8 Ne4 34.f4 Ng3 35.Kf3 Nf1 36.Rb6 Ne3+-) 33...Ne4 34.Rd7 (better 34.Rd5!?+-) 34...Ng5+= 35.Rd6 Nh3 (35...Ra3 36.Rb6 Ra2 37.Kf1 Nh3 38.f4=) 36.Rb6+= Ng5 (36...Rc1 37.f4=) 37.Rc6+/- Ne4 (37...Ra3 38.Ra6 Rc3 39.b6+=) 38.Rc3 Nc3 39.Kd3?? (better 39.Kf3 Nd5 40.Kg4+/-) 39...Nb5!-+ 40.Nb5?? (better 40.Nf3 h3 41.e4-+) 40…h3 0-1. Porfirios (2040) - amayak (2110), Rated Blitz game, lichess.org, 2013. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.g4)

4.Qc1 d6

5.a3 0-0 6.c4 e6 7.e3 e5 8.Be2 Nbd7 9.0-0 c6 10.Nc3 Ne8 11.Rd1 f5 12.d3 Nef6 13.Rf1 Qe7 14.Nd2 b6 15.e4 Bb7 16.ef5 gf5 17.Bf3 d5 18.cd5 cd5 19.g3 e4 20.de4 fe4 21.Bg2 d4 22.Nb5 d3 23.Qc7 Ba6 24.Qd6 Qd6 25.Nd6 Rad8 26.b5 Nc5 27.ba6 Rd6 28.Bf6 Bf6 29.Rac1 Bg5 30.Rcd1 Bd2 31.Rd2 Nb3 32.Rb2 d2 33.Rd1 Rc8 34.Be4 Rc1 35.Bf3 Nd4 36.Bg4 Rg6 37.Bh5 Rg5 38.Rbd2 Rh5 39.Rd4 Rd1 40.Rd1 Ra5 41.Rd8 Kg7 42.Rd7 Kg6 43.Ra7 Ra3 44.Ra8 b5 45.Rb8 Ra6 46.Rb5 Ra1 47.Kg2 h5 48.h4 Ra2 49.Rg5 Kh6 50.Kf3 Ra3 51.Kf4 Ra2 52.f3 Ra4 53.Kf5 Ra5 54.Kf6 Ra6 55.Ke7 Ra7 56.Kd8 Ra8 57.Kc7 Ra7 58.Kb6 Ra3 59.f4 Rb3 60.Kc5 Ra3 61.f5 Ra5 62.Kd4 Ra4 63.Ke5 Ra5 64.Kf4 Ra4 65.Ke3 Ra3 66.Kf2 Ra2 67.Kf3 Ra3 68.Kg2 Ra2 69.Kh3 Ra3 70.Rg6 Kh7 71.Rc6 Rf3 72.f6 Kg6 73.Kg2 Rf6 74.Rc5 Rf5 75.Rc4 Kf6 76.g4 hg4 77.Rg4 Kf7 78.Kg3 Rf6 79.Rg5 Rh6 80.Kg4 Kf6 81.Rf5 Kg6 82.h5 Kg7 83.Rg5 Kf7 84.Kf5 1–0. Adamkosh (2035) – Goldschopf (2020), lichess.org, 2020.

5.a3 0-0 6.e3 e5 7.Be2 Nc6 8.c4 h5 9.d4 e4 10.Nfd2 h4 11.b5 Ne7 12.Qc2 Bf5 13.Nc3 d5 14.cd5 Ned5 15.0-0 h3 16.g3 Re8 17.Nd5 Nd5 18.Bc4 Qd7 19.Qb3 c6 20.bc6 bc6 21.Rac1 Reb8 22.Qc2 c5 23.Nb3 cd4 24.Bd4 Bd4 25.Nd4 Rc8 26.Qa2 Nb6 27.Bb5 Qd6 28.Nf5 gf5 29.Rcd1 Qg6 30.Be2 Rc3 31.Qb2 Rac8 32.Qb4 Rc2 33.Rfe1 Re2 34.Re2 Qg4 35.Ree1 Qf3 36.Kf1 1–0. Adamkosh (1810) – Acardo123 (1750), lichess.org, 2019.

5.c4 0-0 6.e3 e5 7.Be2 e4 8.Nd4 c6 9.Nc3 Re8 10.Bd1 d5 11.cd5 cd5 12.Bb3 Nc6 13.Nde2 Nb4 14.0-0 Nd3 15.Qc2 Nb2 16.Qb2 b6 17.Rac1 Ba6 18.Rfe1 Rc8 19.Qa3 Be2 20.Ne2 Qd7 21.Nd4 Red8 22.Ba4 Rc1 23.Rc1 Qd6 24.Qc3 Nd7 25.Bd7 Qd7 26.Qb4 Rc8 27.Rc8 Qc8 28.g3 Qc4 29.Qc4 dc4 30.Nc6 a5 31.Ne7 Kf8 32.Nd5 b5 33.Kf1 b4 34.Ke1 Ke8 35.Kd1 Kd7 36.Nb6 Kc6 37.Nc4 a4 38.Kc2 Kc5 39.Na5 f5 40.Nb7 Kc4 41.Nd6 Kc5 42.Ne8 Be5 43.h4 Kc6 44.d4 ed3 45.Kd3 Kd7 46.Kc4 b3 47.ab3 ab3 48.Kb3 Ke8 49.Kc4 Kd7 50.Kd5 Ba1 51.f4 Bb2 52.e4 fe4 53.Ke4 Ke6 54.g4 Kf6 55.g5 Ke6 56.h5 Bc1 57.hg6 hg6 58.Kf3 Kf5 59.Kg3 Bf4 60.Kh4 Bg5 61.Kg3 Bf4 62.Kf3 g5 63.Kg2 Kg4 64.Kh1 Kf3 65.Kg1 g4 66.Kf1 Be3 0–1. Adamkosh (1960) – Alistargan (2045), lichess.org, 2020.

4.c4 a6

5.d4 b5 6.e3 d6 7.cb5 ab5 8.Bb5 c6 9.Bd3 0-0 10.0-0 Nbd7 11.Nbd2 Ba6 12.Ba6 Ra6 13.Qb3 d5 14.Rfc1 Qb6 15.a3 Ne4 16.Ne4 de4 17.Ng5 e6 18.Ne4 Nf6 19.Nc5 Ra7 20.Ne6 fe6 21.Qe6 Kh8 22.Rc6 1–0. Wall,Bill – PubMan, Internet, 2003.

5.d4 d5 6.e3 0-0 7.Nbd2 b6 8.c5 Nc6 9.Bc3 bc5 10.bc5 Re8 11.Be2 e5 12.0-0 ed4 13.Bd4 Nd4 14.Nd4 Nd7 15.N2b3 Qe7 16.Bf3 Nc5 17.Bd5 Nb3 (17...Bb7 18.Bb7 Nb7 19.Rc1=) 18.Qb3 (18.ab3 Bd4 19.Qd4 Rd8+=) 18...Bd4 19.ed4 Be6 20.Be6 Qe6 21.Qc3 Qd6 22.Rfe1 Re1 23.Re1 Rd8 24.Rd1 Re8 25.g3 Re2 26.Qc4 ½–½. Dufek,V – Horejs,J, Prague Bohemians, 1977.

5.e3 b6 6.d4 c6 (6...c5 7.bc5 bc5 8.dc5 Qa5 9.Nbd2+=) 7.Bd3+= 0-0 (7...d5 8.0-0+=) 8.0-0 Re8 (8...d5 9.Nc3+=) 9.Nc3 (9.a4 d5+=) 9...Bb7 (9...d6 10.e4+=) 10.c5 (10.e4 d6+=) 10...b5 (10...d6 11.cb6 Qb6 12.Qb3+=) 11.Qb3+/- e6 (11...d5 12.a4+/-) 12.a4 d5 (12...d6 13.cd6 Qd6 14.e4+/-) 13.cd6! Qd6 14.e4 Nfd7 (14...Qe7 15.Bc1+/-) 15.Be2 (better is 15.Rfd1+/-) 15...Bd4? (better is 15...e5 16.de5 Ne5+=) 16.Nd4+– e5?! (16...Qd4 17.Nb5 Qd2 18.Nc7+–) 17.Nf3 (17.Nc2 Rc8+–) 17...c5 (17...a5 18.ba5 b4 19.Rfb1+–) 18.ab5 ab5 (18...cb4 19.Rfd1 Qf8 20.Nd5 ab5 21.Ra8 Ba8 22.Nc7 Be4 23.Ne8 Qe8 24.Qb4 Bf3 25.Bf3+–) 19.Nb5 Qc6 (19...Qb6 20.Ra8 Ba8 21.Ng5+–) 20.Ra8 Ba8 21.Rd1 Na6 (21...Re7 22.Nd6 cb4 23.Nf7 Qe6+–) 22.Nd6 Rf8 (22...Re6 23.Ng5 c4 24.Qc4 Qc4 25.Bc4 Rd6 26.Rd6+–) 23.Bc4 Nb4 (23...Kg7 24.Bf7 Nf6 25.Ne5 Qc7+–) 24.Bf7 Kg7 25.Ne5 Ne5 (25...Nd5 26.Nd7 Kh6 27.Bc1 Nf4 28.Bf4 Kg7 29.Qc3) 26.Be5 Kh6 27.Qh3 Kg5 28.f4 1–0. Leonco – Squarz, internet corr, 2018.

4.c4 b5

5.cb5+/- Bb7 6.e3 d5 7.Be2 Qd6 8.a3 Nbd7 9.0-0 0-0 10.d4 Ne4 11.Nbd2 Ndf6 12.Rc1 a5 13.ba6! Ba6 14.Ba6 Ra6 15.Qc2 c6 16.Ne4 de4 17.Nd2 Ng4 18.g3 f5?? (18...Nf6+–) 19.Qc4 Kh8 20.Qa6 Qf6 21.Qc6 Qg5 22.h4 Qh6 23.Qe6 Ne3 24.fe3 Qe3 25.Rf2 Qg3 26.Rg2 Qe3 27.Kh1 Qh3 28.Rh2 Qg3 29.Rg1 Qd3 30.Qe7 e3 31.d5! ed2 32.Qg7# (32.Qf8#) 1–0. anonymouuus – peschilov, kurnik, 2012.

5.c5 Bb7 6.d4 0-0 7.e3 a5 8.Bc3 c6 9.Be2 Na6 10.a3 ab4 11.ab4 Nc7 12.Nbd2 Ra1 13.Qa1 Ncd5 14.0-0 Qc7 15.Bd3 Ra8 16.Qb2 Nc3 17.Qc3 Nd5 18.Qb2 Ra4 19.e4 Nb4 20.Bb1 Na6 21.Ne5 d6 22.cd6 ed6 23.Nd3 Bd4 24.Qc2 c5 25.Re1 Qc6 26.Kf1 Nb4 27.Qb3 Nd3 28.Qd5 Qd5 29.ed5 Ne1 30.Ke1 Bd5 31.Bc2 Ra2 32.Kd1 Bf2 33.Be4 Be6 34.g3 Be3 35.Nf3 Bb3 36.Ke1 d5 37.h4 de4 38.Ne5 0–1. ursus11 – gramnaczas, kurnik, 2012.

4.c4 Nc6

5.a3 d5 6.e3 Bg4 7.Be2 0-0 8.Nc3 dc4 9.Bc4 Ne5 10.Be2 Bf3 11.Bf3 Nf3 12.Qf3 c6 13.d4 Qd6 14.0-0 h5 15.Rab1 Ng4 16.g3 e5 17.Ne4 Qe7 18.Rfd1 f5 19.Nc5 e4 20.Qe2 h4 21.h3 Nh6 22.Qc4 Kh7 23.Ne6 Rfe8 24.Ng7 Qg7 25.d5 Qf7 26.Qc5 cd5 27.Qd5 Qe7 28.Qd7 hg3 29.Qe7 Re7 30.fg3 Rae8 31.Rd5 Nf7 32.Rbd1 Ng5 33.Kg2 Nf3 34.Bf6 Rf7 35.Rd7 Kg8 36.Bc3 Rc8 37.Rf7 Kf7 38.Rd7 Ke6 39.Rb7 Rc3 40.Ra7 Rc2 41.Kf1 Nd2 42.Ke1 Nc4 43.b5 Ne3 44.b6 Rb2 45.b7 Kd6 46.a4 Kc6 47.Ra6 Kb7 48.Rg6 Ra2 49.h4 Ra4 50.h5 Ra8 51.h6 Rh8 52.Rg7 Kc6 53.h7 Kd6 54.Ke2 Ke5 55.Ke3 f4 56.gf4 Kf6 57.Ra7 Kg6 58.Ke4 Rh7 59.Rh7 Kh7 60.Ke5 Kg8 61.Ke6 Kf8 62.f5 Ke8 63.f6 Kf8 64.Kf5 Ke8 65.Kg6 Kf8 66.Kh6 1–0. Evgenii_777 (1765) – Lofranx (1765), lichess.org, 2020.

5.b5 Na5 6.e3 c5 7.Be2 b6 8.0-0 0-0 9.Nc3 e6 10.d4 Nb7 11.Qc2 Qc7 12.a4 Ng4 13.Rfd1 f5 14.dc5 Nc5 15.Ne4?? (better is 15.h3 Nf6 16.a5 ba5 17.Na4=) 15...Ne4 (better is 15...fe4 16.h3 ef3 17.hg4 fe2 18.Qe2 Ne4–+) 16.Bg7 Kg7 17.Rf1 Kh6 (17...Bb7 18.h3 Ngf6 19.Rfd1–+) 18.h3 Ngf6 19.Rad1 d5 20.Nd4 Bd7 21.Rc1 g5 (better is 21...f4–+) 22.c5? (22.Qb2 Qe5–+) 22...Qe5 (better is 22...bc5 23.Bd3 e5–+) 23.c6 Be8 24.f4 gf4 25.Rf4 Nh5 26.Bh5 Bh5 27.Rh4 Rg8 28.c7 Kg5 29.Rf4 Kf6 30.Rh4 Rg5 31.c8Q Rc8 32.Qc8 Rg2!! 33.Kg2 Qg3 34.Kh1 Nf2 0–1. Richards,James – Harris,Neil, EN2495 WCCF email, 2002. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 Nc6)

5.b5 Na5 6.e4 d6 7.Bc3 c6 (7...c5 8.Qa4 b6 9.Be2=) 8.Qa4+= b6 9.bc6 0-0 10.Bd3 Be6 (10...Nh5 11.Bg7 Kg7 12.Nc3+=) 11.Ba5+/- ba5 12.Nc3 Rb8 13.Rb1 Rb1 14.Bb1 Qb6 (14...Bg4 15.Ng1+/-) 15.0-0 Rb8 16.Nd5 Bd5 (16...Nd5!? 17.cd5 Bg4+/-) 17.cd5+– Ne8 (17...Nh5 18.d4+–) 18.Bc2 Nc7 19.d4 Qb3?? (better is 19...e6 20.Bb3 Qb4+–) 20.ab3 (20...Ne8 21.Qa5+–) 1–0. lucya (2090) – ZZ11 (1920), GameColony.com, 2002.

4.d3 Nc6

5.a3 b6 6.g3 Bb7 7.Bg2 e6 8.Nbd2 Qe7 9.0-0 0-0-0 10.Qc1 h5 11.c4 h4 12.Nh4 Rh4? (better is 12...g5!? 13.Nhf3 g4+=) 13.gh4+/- Ne8 14.Bg7 Ng7 15.Ne4 Qh4 16.Qe3 f5 17.Ng3?? (better is 17.Qg5 Qh5 18.Qh5 Nh5 19.Nc3+–) 17...f4 18.Qe4 Nb4?? 19.Qd4 Nc2 20.Qg7 fg3?? 21.fg3+/- Qg5 22.Bb7 Kb7 23.Qc3?? Na1+= 24.Qa1 Qe3 25.Kg2? Qe2–+ 26.Rf2 Qd3 27.Qc1 Rh8 28.c5?! Qd5 29.Kg1 Qc5 30.Qc5 bc5 31.Rb2 Kc6 32.a4 d5 33.Rb5 e5 34.Kg2 e4 35.h4 Rf8 36.Ra5 Kb6 37.Rb5 Kc6 38.Ra5 Ra8 39.Ra6 Kb7 40.Rg6 Rd8 41.Kf2 d4 42.Ke2 c6 43.Kd2 Kb6 44.Rg7 a6 45.h5 Ka5 46.Rc7 Ka4 47.Rc6 Kb5 48.Rg6 c4 49.Rg5 Kb4 50.Rg6 e3 51.Kc2 d3 52.Kd1 e2 53.Ke1 d2 54.Ke2 d1Q 55.Ke3 Qh5 56.Ra6 Qe5 57.Kf2 Rf8 58.Kg2 Qe4 59.Kh3 Rh8 (59...Rh8 60.Rh6 Rh6#) 0–1. giorgo – rexhepi55, kurnik, 2012.

5.b5 Na5 6.e4 d6 7.Be2 Bd7 8.a4 e5 9.0-0 b6 10.Nbd2 h5 11.Nb3 Nb3 12.cb3 Qc8 13.Rc1 Ng4 14.Qc2 0-0 15.Qc7 Qc7 16.Rc7 Be6 17.b4 Rfc8 18.Rfc1 Rc7 19.Rc7 Bf8 20.d4 ed4 21.Nd4 Bc8? 22.f4 Bg7 23.h3 Nf6 24.Bf3 a6?? 25.e5 de5 26.Ba8 ed4 27.Rc8 Kh7 28.Bd4 ab5 29.ab5 Ne4 30.Bg7 Nd6 31.Rc6 Nb5 32.Rb6 Nc7 33.Be5 Na8 34.Rb7 Kh6 35.Rf7 Nb6 36.Rf8 g5 37.f5 g4 38.Rf6 (38.Rf6 Kg7 39.Rb6 Kf8 40.Rb8 Ke7 41.Rb7 Kf8 42.f6 Kg8 43.f7 Kf8 44.Bd6 Kg7 45.f8Q Kg6 46.Rg7 Kh6 47.Bf4#; 38.h4 Nc4 39.Rh8#) 1–0. bratek55 (1630) – riza25, kurnik, 2012.

4.d4 d5

5.a4 0-0 6.g3 Bg4 7.Bg2 Qc8 8.Ne5 Bh3 9.0-0 Bg2 10.Kg2 Nbd7 11.Nd3 c6 12.e3 Ne4 13.Nd2 Ndf6 14.Rc1 Qf5 15.Nf4 g5 16.Nd3 h5 17.Qf3 Qg6 18.Qe2 Bh6 19.Ne5 Qf5 20.Ne4 Ne4 21.Qh5 Kg7 22.c4 Rh8 23.cd5 cd5 24.Rc7 Rae8 25.f3 Nd2 26.Rf2 Nc4 27.e4 Ne3 28.Kg1 Qe6 29.Bc1 Nd1 30.Rf1 Qd6 31.Qf7 1–0. racvac001 (1675) – gregory998 (1615), kurnik, 2012.

5.b5 0-0 6.c4 c6 7.a4 Bd7 8.e3 e6 9.c5 Ne4 10.Nbd2 f5 11.Bd3 (11.Ne5 a6=) 11...Be8 (11...Nc5 12.Bf1 Ne4 13.Ne5+=) 12.Ne5 (better is 12.Qc2!?+=) 12...Nd7 13.f3?? (better is 13.Nd7!? Bd7 14.Qc2=) 13...Ne5 (13...Qh4 14.g3 Ng3 15.hg3 Qh1 16.Nf1 Be5 17.de5 Nc5 18.Be2–+) 14.de5? Qh4–+ 15.g3 Ng3! 16.Nf1 Nh1 17.Kd2 Nf2 18.Qe2 Nd3 19.Kd3 Qc4 20.Kd2 Qe2 21.Ke2 cb5 22.ab5 Bb5 23.Kf2 a5 24.f4 Bf1 25.Rf1 a4 26.Ra1 Ra6 27.Ba3 Rc8 28.Kg3 Bf8 29.Kh4 Bc5 30.Bc5 Rc5 (30...Rc5 31.Kg5 a3–+) 0–1. chevin – Bennyhill, Live Game Caissa's Web, 2004.

5.Nc3 0-0 6.Ne5 c6 7.e3 Nbd7 8.f4 Nb6 9.Be2 Bd7 10.0-0 Qc7 11.Qe1 Rfe8 12.Bf3 a6 13.a4 Nc4 14.Nd3 b5 15.a5 Bf5 16.Rb1 Bd3 17.cd3 Nb2 18.Rb2 e6 19.e4 de4 20.de4 Rad8 21.e5 Nd5 22.Nd1 Nf4 23.Qe4 Nd5 24.Be2 Qe7 25.Rb3 Rc8 26.Qb1 Bf8 27.Rff3 Nb4 28.Rb4 Qb4 29.Qa1 Qe1 30.Bf1 c5 31.Re3 Qb4 32.Kh1 cd4 33.Re4 Bc5 34.Ne3 Qd2 35.Ng4 Kg7 36.Nf6 Red8 37.Re2 Qg5 38.h3 d3 39.Rd2 Qd2 40.Ng4 Bd4 41.Qa3 b4 White resigned 0–1. Crusader Rabbit (1845) – altobelli (1830), ChessWorld.net, 2015.

5.Nbd2 a5 6.b5 a4 7.Rb1 c6 8.e3 0-0 9.Bd3 Nbd7 10.Ba3 Re8 11.0-0 e5 12.Ne5 Ne5 13.de5 Ng4 14.Nf3 Ne5 15.bc6 bc6 (worse is 15...Nd3 16.cb7 (worse is 16.Qd3 bc6 17.Qd2 Ba6+=) 16...Bb7 17.Rb7+/- (17.Qd3 Ba6 18.Qd2 Bf1 19.Rf1 Qc7-/+)) 16.Ne5 Be5 17.Bb2 Bb2 18.Rb2 a3 19.Rb1 Be6 20.c3 Qf6 21.Qc2 Reb8 22.h3 c5 23.Qd2 d4 24.ed4 cd4 25.c4 Qe5 26.Rb4 Rb4 27.Qb4 Bf5 28.Bf5 Qf5 29.Rd1 Qe5 30.Qd2 Rb8 31.Qd4 ½–½. Arkell,K (2425) – Bosboom,M (2390), Amsterdam NED, 4th Batavia Grolsch, 2012.

5.e3 0-0 6.Nbd2 c6 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5 7.Nbd2).

5.Ne5 0-0 6.Nc3 Nbd7 7.e3 Ne5 8.de5 Ne4 9.Nd5 c6 10.Nf4 Qd1 11.Rd1 Bf5 12.Bc4 b5 13.Bb3 Rad8 14.0-0 c5 15.Nd5 Rd7 16.f3 Ng5 17.e4 Be6 18.bc5 Rfd8 19.c6 Bd5 20.Rd5 Rd5 21.ed5 h5 22.Rd1 Rc8 23.f4 Ne4 24.Ba3 Kf8 25.d6 ed6 26.ed6 Nd6 27.Rd6 Ke8 28.f5 Bf8 29.Bf7 Kf7 30.fg6 Kg8 31.Rd3 Ba3 32.Ra3 Rc6 33.Ra7 Rc2 34.Ra5 Rb2 35.h4 Kg7 36.Kh2 Kg6 37.Ra6 Kf5 38.Kh3 b4 39.Ra5 Kg6 40.Ra6 Kf5 41.Ra5 Kg6 42.Rg5 Kh6 43.Rb5 Ra2 44.Rb4 Ra3 45.g3 Ra2 46.g4 hg4 47.Rg4 Ra3 48.Rg3 Rg3 49.Kg3 Kh5 50.Kh3 Kg6 51.Kg4 Kh6 52.h5 Kh7 53.Kg5 Kg7 54.h6 Kh7 55.Kh5 Kh8 56.Kg5 Kh7 57.Kh5 Kh8 Draw agreed ½–½. alanxxxxx – mckenna215 (1935), ChessWorld.net, 2015.

4.e3 Kf8

5.Be2 d6 6.0-0 e5 7.d3 Nbd7 8.c4 Kg8 9.Nbd2 Nf8 10.h3 h5 11.Nh2 Ne6 12.f4 e4 13.f5 ed3 14.Bd3 Ng5 (14...gf5!? 15.Rf5 Rh6+/-) 15.fg6 fg6 16.Bg6 Bh3? (better is 16...Qe7 17.Qb3 a5+/-) 17.gh3+– Nh3 18.Kh1 d5 19.Bf6 Bf6 20.cd5 Qd5 21.e4 Qg5 22.Qb3 Kg7 23.Qf7 Kh6 24.Rf6 Qd2 25.Bf5 Kg5 26.Rg6 Kh4 27.Nf3 1–0. horacyad2010 – 4washt, kurnik, 2011.

5.Be2 h5 6.d3 d6 7.Nbd2 h4 8.c4 a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Nc6 12.b5 Nb4? (better is 12...Nb8+=) 13.Bc3?? (13.Qa5 Nc2 14.Kd1 Ne3 15.fe3+/-) 13…Nc2–+ (13...Nc2 14.Kd1 Na1 15.Ba1 h3–+) 0–1. elsh1403 – anyrteb (1630), kurnik, 2011.

4.e3 Rg8

5.c4 b6 (5...d6 6.d4+=) 6.Nc3 d6 (6...a5 7.ba5 ba5 8.d4+=) 7.Be2 Nc6 (7...c5 8.a3+=) 8.d4 Nb4? (better is 8...a6+/-) 9.Qa4+– Nc6 10.Qc6 Bd7 11.Qb7 Qb8 (11...c5 12.Nb5 Bb5 13.cb5+–) 12.Qb8 (12.Qa6 c5+–) 12...Rb8 13.Rb1 (13.Nb5 Rb7+–) 13...Bc6 (13...c5 14.Rc1+–) 14.d5 (14.0-0 a6+–) 14...Bd7 15.Nd4 Ng4 (15...a6 16.Bd3+–) 16.h3 Nh6 (16...Nf6 17.g4+–) 17.g4 (17.Ncb5 Rb7+–) 17...Bd4 (17...a6 18.Nf3+–) 18.ed4 Rf8 19.Bc1 Ng8 20.c5 dc5 (20...Kd8 21.c6 Bc8 22.Be3+–) 21.dc5 Nf6 (21...Kd8 22.Bf4 f6 23.Bg3+–) 22.c6 Bc8 23.Bf4 Kd8 (23...Ra8 24.Bc7 h5+–) 24.Bc7! Kc7 25.Nb5 Kd8 26.c7 (26...Kd7 27.cb8Q+–) 1–0. MrkT – Legends, internet, 2005.

5.Ng5 h6 6.Nf3 Nd5 7.b5 Bb2 8.Nc3 Nc3 9.dc3 Bc3 10.Nd2 Ba1 11.Qa1 e6 12.Be2 c6 13.a4 b6 14.0-0 a6 15.Ne4 ab5 16.Nd6 Ke7 17.Nc8 Qc8 18.Bf3 Ra4 19.Qc3 d5 20.Qe5 f6 21.Qg3 e5 22.Bg4 Qc7 23.f4 f5 24.Bf5 ef4 25.Rf4 Rf4 26.ef4 Kf6 27.Bd3 g5 28.Qh3 Qf4 29.Qh6 Ke5 30.Qh7 Rf8 31.Qe7 Kd4 32.Qb4 Ke3 33.Qe1 Kd4 34.Qb4 Ke5 35.Qc3 Kd6 36.Qg7 Qf2 37.Kh1 Qf1 38.Bf1 Rf1 0–1. axtur777 – geoge, lichess.org, 2019.

4.e3 h6

5.Be2 0-0 6.0-0 d6 7.c4 e5 8.a4 Ne8 9.d4 e4 10.Nfd2 f5 11.Qb3 Kh8 12.Nc3 c6 13.Rac1 g5 14.b5 Be6 15.d5 Bf7 16.f3 c5 17.fe4 fe4 18.Nce4 Nd7 19.Rf2 Ndf6 20.Rcf1 Ng4 21.Bg4 h5 22.Rf7 Rf7 23.Rf7 hg4 24.Bg7 Ng7 25.Qc3 Qg8 26.Ng5 Rf8 27.Qf6 Rf7 28.Nf7 Kh7 29.Qh6 1–0. elsh1403 – solaris8, kurnik, 2012.

5.h4 0-0 6.g3 a6 7.Bd3 b6 8.Ne5 Bb7 9.Rh2 d6 10.Nf3 (10.Nc4 Nc6 11.Bc3 b5-/+) 10...Nbd7 (better is 10...Ng4!? 11.Bg7 Nh2 (11...Kg7?! 12.Rg2+=) 12.Nh2 Kg7–+) 11.Nc3-/+ c5 12.bc5 Nc5 13.Bc4 d5 14.Bb3 a5 15.Ne5? a4–+ 16.Ba4? Na4 17.Na4 Ra4 18.c4 dc4 19.Qa4+= Ng4 20.Ng4 Bb2 21.Rb1? Bg7?? 22.Qa7?? Be4?? 23.Rb6 Bd3?? 24.h5 g5 25.Nh6 Bh6? 26.Rh6 Qd5 27.Qe7?? Qf5?? 28.g4! Qd5 29.Rg6 fg6+= 30.hg6 Bg6 31.Rh6 Qf7-/+ 32.Qe5?? Qg7 33.Qe6 Bf7+= 34.Qf6 Qf6 (34...Qf6 35.Rf6 Ra8+=). reidosreis – wladca5, kurnik, 2012.

4.e4 e5

5.Ne5 Ne4 6.Nc6?? (better 6.Qe2 f5 7.f3+=) 6...Qh4–+ Do you see the mate threat? (6...dc6?! 7.Bg7 Rg8 8.Bb2+=) 7.g3 Nc3?? (better 7...Ng3 8.Qf3 Bb2 (8...bc6?! 9.Bg7 Rg8 10.hg3 Qe7 11.Kd1 Rg7 12.Bg2=) 9.fg3 Qf6 (9...Ba1?! 10.Qe3 Kf8 11.gh4 Nc6 12.Nc3=) 10.Qf6 Bf6–+) 8.Bc3 (better 8.Nc3 Qf6 9.Qe2 Qe6 10.Nb8 Rb8 11.0-0-0+–) 8...Qe4+= 9.Qe2 Do you see the mate threat? 9...Qe2 10.Be2 (10.Ke2 Bc3 11.Nc3 dc6+=) 10...Bc3 11.Nc3 Nc6 12.0-0 (12.Nd5 Kd8+=) 12...d6 (12...Nb4 13.Rab1 a5 14.a3=+) 13.b5 (13.Bb5 Kd8 14.Bc6 bc6=) 13...Nd4 14.Bd3 Bf5 (14...Bg4 15.f4=) 15.Rfe1 (15.Bf5 gf5 16.Kg2=) 15...Ne6 (better 15...Kd7!? 16.Re3 Bd3 17.Rd3 Ne6=) 16.Bf5+= gf5 17.Re2 (17.Ne2 Kd7+=) 17...0-0-0 (17...Kd8 18.Re3=) 18.Nd5+= Nd4 19.Re7 Nb5 (better 19...Rd7!? 20.Rd7 Kd7+=) 20.c4+– (worse 20.Rf7 Rd7 21.Rd7 Kd7+=) 20...Nd4 21.Rc7 Kb8 22.Rf7 (better 22.Rb1 b6 23.Rb4+–) 22...Nc2? (better 22...Nf3 23.Kg2 Nd2+–) 23.Rb1+– Threatening mate: Rfxb7 23...b6 24.Nb6 (better 24.Rf5!? Rde8+–) 24...ab6 25.Rb6 Kc8 26.Rbb7 Threatening mate... how? 26...Rhe8?? (better 26...Rde8+–) 27.Rfc7 1–0. aravind555 – MeadodaMagdaln, lichess.org, 2018.

5.Ne5 Qe7 6.d4 d6 7.c3 de5 8.de5 Qe5 9.Bc4 Qe4 10.Be2 Qg2 11.Bf3 Qg5 12.Bc1 Qe5 13.Be3 Bg4 14.Bg4 Ng4 15.Qg4 0-0 16.Nd2 Nc6 17.0-0-0 Nb4 18.Bd4 Qa5 19.Bg7 Qa3 20.Kb1 Qa2 21.Kc1 Qc2 0–1. Adjailton (1875) – benuc (1770), lichess.org, 2020.

4.g3 Kf8

5.Nc3 Nc6 6.b5 Na5 7.d3 b6 8.Bg2 Bb7 9.0-0 c6 10.Qd2 c5 11.e4 h5 12.e5 Nd5 13.Ng5 Nc3 14.Bb7 Nb7 15.Bc3 e6 16.Qf4 Qe7 17.Rfe1 Rd8 18.h4 d5 (better is 18...Kg8!?+=) 19.ed6+– Nd6?? (better is 19...Rd6 20.Ne6! Re6 21.Re6 Qe6 22.Qb8 Qe8 23.Qe8 Ke8 24.Bg7 Rg8 25.Re1 Kd7+/-) 20.Ne6 Qe6 (20...Kg8 21.Ng7 Qf8+–) 21.Re6 Bc3 22.Rd6 Rd6 23.Qd6 Kg7 24.Rc1 Re8 25.Qd7 Re6 26.Qa7 Rf6 27.Kg2 Bd4 28.f4 Bc3 29.Qa3 Bb4 30.Qb2 Ba5 31.Rd1 Bb4 32.d4 c4 33.Qb4 Re6 34.Re1 Rf6 35.Re8 g5 36.Qf8 Kg6 37.Qg8 Kf5 38.Qg5# 1–0. pierre – mfathih, internet, 2008.

5.Bg2 d6 6.0-0! e5 7.d3 Nc6 8.a3 Ne7 9.Nbd2 c6 10.c4 a5 11.c5 Nfd5 12.cd6 Qd6 13.Nc4 Qc7 14.Be5 Be5 15.Nce5 f6 16.Nc4 ab4 17.ab4 Ra1 18.Qa1 Kg7 19.Rb1 b5 20.Na5 Bg4 21.e4 Nb6 22.Rc1 Rd8 23.Qc3 Na4 24.Qb3 Bf3 25.Bf3 Rd4 26.Kg2 Qd6 27.Be2 Rb4 28.Qa3 Rd4 29.Qa1 Kf7 30.Nc6 Nc6 31.Rc6 Qc6 32.Qd4 Nc3 33.Bf3 b4 34.Qb4 1–0. sacaniev (1605) – kwapimat, kurnik, 2012.

5.Bg2 d6 6.0-0 e5 7.d3 Bh6 8.Nbd2 Kg7 9.Bc1 Rf8 10.Nc4 Bc1 11.Qc1 Kg8 12.Qg5 Kg7 13.Qh4 h5 14.Ng5 Bf5 15.e4 Bd7 16.Bh3 Bh3 17.Qh3 Qd7 18.Qg2 Nc6 19.a3 Nd4 20.Ra2 Qg4 21.Nf3 a6 22.Ncd2 Ne2 23.Kh1 Nd4 24.h3 Qe6 25.c3 Nf3 26.Nf3 Qa2 27.g4 Qa3 28.gh5 Nh5 29.d4 Qc3 30.de5 de5 31.Nh4 Nf4 32.Qg3 Qg3 33.fg3 Nh3 34.Kh2 Ng5 35.Re1 Rad8 36.Ng2 Nf3 (36...Nf3 37.Kh3 Rh8 38.Nh4 Ne1–+) 0–1. linakip – dosa1, kurnik, 2012.

4.g3 h5

5.Bg2 0-0 6.0-0 d5 7.d3 c6 8.Nbd2 e6 9.h4 Nbd7 10.Qc1 Nb6 11.a4 a5 12.b5 c5 13.c4 dc4 14.Nc4 Nc4 15.Qc4 b6 16.Be5 Bb7 17.Qc3 Qd5?? (17...Nd5 18.Qd2=) 18.Ne1 (18.Bf6 Bf6 19.Qf6 Rad8+–) 18...Qd7 19.Bb7 Nd5 20.Bd5 Be5 21.Qe5 Qd5 22.Nf3 f6 23.Qe3 e5 24.Rac1 Rae8 25.Qh6 Kf7 26.Qh7 Ke6 27.Qg6 Rh8 28.Ng5 Kd7 29.Qf5 Ke7 30.Ne4 Reg8 31.Qf6 Kd7 32.Ng5 Kc7 33.Qe7 Qd7 34.Qe5 Kb7 35.Qe4 Ka7 36.Rc4 Re8 37.Qf3 Rhf8 38.Qh5 Rh8 39.Qg4 Reg8 40.Re4 Qg4 41.Rg4 1–0. linakip – avnija12, kurnik, 2011.

5.Bg2 0-0 6.a4 d6 7.b5 Ng4 8.e3?? Bb2–+ 9.Ra2 Bg7 10.c4 Be6 11.Nd4 Bc4 12.Bb7 Ba2 13.Ba8 Bb1 14.Qb1 Bd4 15.ed4 c6! 16.bc6 Qb6 17.Qb6-/+ ab6 18.0-0 Na6 19.Bb7+= Nc7 20.Rb1 e6 21.Rb6 d5 22.a5 Nf6 23.a6 Nfe8 24.a7 Nd6 25.Rb2 Na8?? 26.Ba8+– Ra8 27.Rb8 Rb8 28.ab8Q Kg7 29.Qd6 f6 30.Qe6 (30.Qe6 g5 31.c7 h4 32.c8Q g4 33.Qcg8 Kh6 34.Qf6 Kh5 35.Qd5#; 30.c7 Kh6 31.c8Q g5 32.Qcf8 Kg6 33.Qg8 Kf5 34.Qde6#) 1–0. rryy44 – riza25, kurnik, 2011.

4.g3 Nh5

5.Qc1 Bb2 6.Qb2 Nf6 7.Bg2 0-0 8.0-0 d6 9.d3 Bd7 10.Nbd2 Bc6 11.a3 e5 12.b5 Bd7 13.a4 a6 14.c4 ab5 15.cb5 Ra7 16.Nc4 c6 17.b6 Ra8 18.a5 Na6 19.Nd6 Qb8 20.Nc4 Nc5 21.Nce5 Nd5 22.Nd7 Nd7 23.Qb3 Nc5 24.Qc4 Nd7 25.e4 N5b6 26.ab6 Ra1 27.Ra1 Nb6 28.Qb4 Nd7 29.Nd4 Ne5 30.Rd1 Qa7 31.Nf3 Nf3 32.Bf3 Kg7 33.Rb1 Kg8 34.Qb7 Qb7 35.Rb7 Rc8 36.d4 c5 37.dc5 Rc5 38.Kg2 Kg7 39.h4 h5 40.Rd7 Re5 41.Rd4 Kf6 42.Bd1 Kg7 43.f4 Re7 44.Bb3 Kf6 45.e5 Kg7 46.Bc2 Kf8 47.Kf3 Kg7 48.Be4 f5 49.ef6! Kf6 50.Rd6 Re6 51.Re6 Ke6 52.Bg6 (52.Bg6 Kf6 53.Bh5+–) 1–0. linakip – kazniku, kurnik, 2012.

5.Qc1 Bb2 6.Qb2 Nf6 7.Bg2 d6 8.d3 Nc6 9.Nbd2 Be6 10.0-0 Qd7 11.c4 h5 12.a3 Bg4 13.h4 Bf3 14.Nf3 0-0-0 15.Qc3 Ng4 16.b5 Nce5 17.Ne5 Ne5 18.a4 f6 19.a5 g5 20.hg5 fg5 21.d4 Ng4 22.c5 dc5 23.dc5 h4 24.c6 Qd4 25.Qd4 Rd4 26.cb7 Kb8 27.e3 Rb4 28.Bf3 Ne5 29.Kg2?? hg3 30.fg3= Rb2 31.Kg1 Rb5 32.a6 Rf8?? 33.Be4 Rf1 34.Kf1 Rb3 35.Kf2 Ng4 36.Kf3 Ne3 37.Ke2 Nc4 38.Bd5 Rc3?? 39.Rh1 Re3 40.Kf2 Rf3 41.Kf3 (41.Kf3 Ne5 42.Ke4 Nf7 43.Bf7 c5 44.Rh8 Kc7 45.b8Q Kd7 46.Qd8 Kc6 47.Be8#; 41.Bf3 c5 42.Rh8 Kc7 43.b8Q Kd7 44.Bd5 e5 45.Qd8#) 1–0. linakip – jerzyslowik, kurnik, 2012.

5.Qc1 b6 6.Bg2 Bb7 7.0-0 Nf6 8.d3 d6 9.a3 Nc6 10.Nbd2 Qd7 11.Nb3 h5 12.c4 h4 13.Nh4 Bh6 14.Qd1 Bg5 15.Nf3 Bh6 16.b5 Nd8 17.e4 Ne6 18.Nbd4 Nd4 19.Nd4 0-0-0 20.Nc6! Bc6 21.bc6 Qc6? 22.e5 Qc5 23.ef6 ef6 24.Qf3 c6 25.Bf6 d5 26.Bh8 Rh8 27.cd5 cd5 28.Qd5 Qd5 29.Bd5 Bg7 30.Rac1 Kd7 31.Bf7 Ke7 32.Bg6 Kf6 33.Be4 Ke5 34.Rc7 Bf6 35.Ra7 Rb8 36.Rb1 b5 37.a4 b4 38.a5 b3 39.a6 Be7 40.Rb7 Ra8 41.R7b3 Ra6 42.Kg2 Bd6 43.Rb5 Ke6 44.f4 Ra2 45.Kh3 Ra7 46.Kg4 Rg7 47.Kf3 Rh7 48.h4 Rg7 49.g4 Rf7 50.f5 Kf6 51.g5 Kg7 52.Rb7 Be5 53.Rf7 Kf7 54.h5 (54.h5 Kg8 55.h6 Kf7 56.Rb7 Kg8 57.h7 Kh8 58.g6 Bd6 59.f6 Bf8 60.g7 Bg7 61.fg7#) 1–0. giorgo – aparatas, kurnik, 2012.

5.Bg7 Ng7 6.Nc3 0-0 7.Bg2 c6 8.0-0 a5 9.b5 cb5 10.Nb5 d5 11.c4 dc4 12.Qc2 (better is 12.Ne5+=) 12...Qd5?? (better is 12...Be6=) 13.Nc7+– Qd7? (13...Bf5 14.Qb2 Qc5 15.Na8 Nd7+–) 14.Na8 b5 15.a4 Bb7 16.Ne5 Qc8 17.ab5 Bg2 18.Kg2 Nd7 19.Nc6 Qb7 20.Ra5 Ra8 21.Qe4 Ra5 22.Ne7 Kf8 23.Ng6! hg6 24.Qb7 Nf6 25.Qb6 Ra4 26.Qf6 (26.Qf6 Ne8 27.Qh8 Ke7 28.b6+–) 1–0. pierre – anzahl, internet, 2008.

4.g4 h6

5.Bg2 c6+= A) 6.c4 d6 (6...d5 7.cd5 cd5 8.h3 Qb6 9.Qc2 0-0 10.a3 Bd7= –0.19; 6...Na6 7.a3 d5 8.cd5 cd5 9.h3 0-0 10.g5 hg5= –0.03) 7.h3 e5 8.d3 Be6 9.Nc3 Nbd7 10.b5 d5= –0.22; B) 6.h3 Qb6 7.Bf6 Bf6 8.c3 d5 9.a4 e5 10.a5 Qc7+= –0.59; C) 6.a3 d5 (6...d6 7.h3 e5 8.c4 Be6 9.d3 Nbd7 10.Nbd2 a5= –0.13) 7.h3 Nbd7 8.d3 0-0 9.g5 hg5 10.Ng5 Qb6= –0.13.

5.h4 d6+= 6.g5 (6.Rg1 e5 7.g5 Nd5+= (7...hg5 8.hg5 Nd5 9.a3 Nf4 10.e4 Bh3+= –0.34) 8.a3 hg5 9.hg5 Nf4 10.e4 Bh3+= –0.34) 6...hg5-/+ 7.Ng5 e5 8.c4 (8.Bg2 Nc6 9.c3 d5 10.c4 Qd7-/+ –0.88) 8...Nc6 9.b5 (9.Qa4 Bd7 10.Bg2 a6-/+ –0.78) 9...Nd4 10.Bg2 (10.Bd4!? ed4 11.Bg2-/+) 10...Nf5–+ 11.Qb3 Nh4 12.Qg3 Ng2 13.Qg2 Rh1 14.Qh1 Nh5 15.Ne4 Be6 16.Nec3 (16.d3 Qe7–+) 16...Qg5 (worse is 16...Bc4 17.Qb7 Be6 18.Nd5-/+) 17.Na3 (17.c5 dc5 18.Ne4 Bd5–+) 17...0-0-0 18.0-0-0 (18.Ne4 Qe7–+) 18...Rh8 19.Rg1 (19.Qf3 Nf4 20.Rh1 Rh6–+) 19...Qf5 20.b6 (20.Qg2 Nf4 21.e4 Qf6–+ (21...Ng2?! 22.ef5 Bf5 23.Rg2+=)) 20...ab6 (20...cb6?! 21.Nab5 Bf8 22.Ne4=) 21.e4 (21.Qg2 Nf4 22.Qf1 Rh2–+) 21...Qf2 22.Rf1 Qc5 23.Nd5 (23.Qg1–+) 23…Ng3 (23...Ng3 24.Qf3 Nf1 25.Qf1 Rh2–+) 0–1. Fejzovski,E (2160) – Lomineishvili,M (2395), XV Open de Cappelle, 1999.

5.h4 e5 6.Ne5 d6 7.Nd3 Bg4 8.Rg1 Bf5 9.Bg2 d5 10.b5 a6+= –0.56; 5...d5 6.Rg1 Qd6 (6...Nc6 7.a3 Rh7 8.g5 Nh5 9.Bg7 Ng7 10.d4 hg5= 0.00; 6...Na6 7.g5 hg5 8.hg5 Nh5 9.Bg7 Ng7 10.a3 Qd6= 0.03) 7.a3 Nbd7 8.g5 Nh5 9.Bg7 Ng7 10.Nc3 e5+= –0.28; 5...c6 6.a3 d6 (6...e5 7.Be5 d6 8.Bd4 Bg4 9.Bg2 Qe7 10.Nc3 Rg8+= –0.41; 6...a5 7.Bg2 ab4 8.ab4 Ra1 9.Ba1 Qb6 10.Bd4 Qb4+= –0.38) 7.Rg1 e5 8.g5 e4 9.gf6 Bf6 10.Nd4 c5+= –0.56.

4.Ng5 0-0

5.e3 d5 6.h3 b5 (better is 6...Bd7!?+=) 7.Bb5+= Bb7 8.Bf1 Nbd7 9.Nf3 Ne4 (9...Re8 10.Be2+=) 10.Bg7+/- Kg7 11.d3 Nef6 12.c4 dc4 13.dc4 Rc8 14.Nc3 Ne5?? (14...c5 15.a3+=) 15.Nd4 (better is 15.Ne5 Qd6 16.Qd6 cd6 17.Ng4+–) 15...c5+/- 16.bc5 Rc5 17.Nb3 Rc8 18.c5 Qd1 19.Rd1 Nc6 (19...Ned7!?+=) 20.a3 e6 21.Nb5 Kg8 22.Nd6 Rc7 23.Be2 a5 24.0-0 a4 25.Nd4 Nd4 26.ed4 Nd5 27.Nb5 Rcc8 28.Rb1 Nf4+/- 29.Bc4 Bg2 30.Rfe1 Bh3 31.Kh2 Bf5 32.Nd6 Bb1-/+ 33.Nc8 Rc8 34.Rb1 Nh5 0–1. lican – albert00, kurnik, 2012.

5.e3 Nd5 6.Bg7 Kg7 7.a3 e6 8.Nf3 Qf6 9.d4 b6 10.c4 Ne7 11.Nbd2 Bb7 12.Be2 d6 13.0-0 Nd7 14.Rc1 h6 15.Qc2 Nf5 16.e4 (16.Qd3 a5+=) 16...Nh4 (better is 16...Nd4!? 17.Nd4 Qd4-/+) 17.d5 ed5 (better is 17...a5!?+=) 18.cd5+/- Rac8 19.Bb5 (19.Qa4 Nf3 20.Bf3 Qd8 21.Qa7 Ba8+–) 19...Ne5 (19...Nf3!? 20.Nf3 Nb8+/-) 20.Ne5+– Qe5 21.f4 Qf6 22.Bd7 Qd4 23.Kh1 Rcd8 24.Bh3 Ba6 25.Rg1 Bd3? 26.Qd1 Be4 27.Ne4 Qe4+/-. lican – blister, kurnik, 2012.

4.a3 0-0

5.Qc1 c6 6.e3 d5 7.c4 Bg4 8.cd5 cd5 9.Be2 Nc6 10.h3 Bf5 11.g4 Be4 12.d3 Bf3 13.Bf3 Rc8 14.Qd2 d4 15.e4 Ne5 16.Bg2 Qc7 17.f4 Neg4 18.hg4 Ng4 19.0-0 Ne3 20.Rf2 e5 21.f5 Bh6 22.Qe2 Bf4 23.fg6 fg6 24.Nd2 Bh2 25.Kh2 Rf2 26.Qf2 Ng4 27.Kg3 Nf2 28.Kf2 Qc2 29.Bc1 Qd3 30.Nf1 Rc2 31.Kg1 Qc3 32.Bh3 Qh3 0–1. Adamkosh (1865) – Dolphin_2012 (1885), lichess.org, 2019.

5.Qc1 d6 6.e3 e5 7.c4 Nc6 8.d4 ed4 9.ed4 Re8 10.Be2 Bg4 11.Qf4 Qe7 12.Nc3 Bf3 13.gf3 Nh5 14.Qd2 Nd4 15.0-0-0 Nb3 16.Kc2 Nd2 17.Rd2 Nf4 18.Re1 Qf6 19.Nd1 Qf5 20.Bd3 Nd3 21.Re8 Re8 22.Rd3 Re2 23.Kc1 Qd3 0–1. Adamkosh (1875) – Yaroslav_2007 (2085), lichess.org, 2020.

5.c4 a5 6.e3 ab4 7.a4? (better 7.ab4!? Ra1 8.Ba1=) 7...c5-/+ 8.d4 d6 9.dc5 (9.Bd3 Bd7-/+) 9...dc5-+ 10.Nbd2 Nc6 11.Nb3 (11.Be2 Qc7-+) 11...b6 12.Bd3 Bb7 (12...Bg4 13.0-0-+) 13.a5 (13.0-0 Na5-/+) 13...ba5 (better 13...Na5!? 14.Qc2 Nb3 15.Qb3 Ra1 16.Ba1 Bf3 17.gf3 Qd7-+) 14.Nc5-/+ Bc8 15.0-0 Bg4 16.h3 Bf3 17.Qf3 Qb6 (17...Qd6!? 18.Na4-+) 18.Na4-/+ Qc7 19.c5 Ne5 20.Be5 Qe5 21.c6 Rac8 22.Nb6 Rc7 23.Nc4 Qd5 24.Qd5 Nd5 25.Ra5 e6 26.Be4 (better 26.Ra6!?=+) 26...Rc6-+ 27.Bd5 ed5 28.Nd2 Rc2 (28...d4!?-+) 29.Rd5-/+ Rb8 30.Rb1 Bb2 31.g3 b3 (better 31...Kg7=+) 32.Rd3+/- Bc3 33.Rb3 Rc8 34.Ne4 Rc1 35.Kg2 Bg7 (35...Be5!?+/-) 36.Rb7 h5 (36...f5 37.Ng5+-) 37.Rdd7 Rf8 38.Nd6 Be5 1-0. Bardiya___Daneshvar (2815) - Arifars17 (2680), Rated Bullet game, lichess.org, 2021. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.a3)

5.c4 c5 6.bc5 Qa5 7.e3 (7.Nc3 Qc5 8.e4 d6+=) 7...Qc5 (7...Na6 8.Bc3 Qc5 9.Bf6 Bf6 10.d4+=) 8.d4 (8.Bf6 Bf6 9.d4 Qa5 10.Qd2 Qd8+=) 8...Qa5 9.Qd2 Qd2 (9...Qh5 10.Be2+=) 10.Nfd2 (10.Nbd2 d6+=) 10...d6= 11.Nc3 Bd7 (11...Nc6 12.Bd3+=) 12.a4 (12.Bd3 Nc6+=) 12...b6 (12...Nc6 13.Be2=) 13.Ba3 (13.Be2 Nc6=) 13...Nc6 14.Nb3 (14.Bd3 Rfc8=) 14...Rfd8 (14...Bf5 15.Be2=) 15.Be2 (15.Bd3 Rac8=) 15...Be8 (15...Bf5 16.0-0=) 16.0-0 Rac8 (16...Bd7 17.Bb2=) 17.Rfc1 (17.Bb2 e5+=) 17...Bf8 (17...Bd7 18.Nb5=) 18.g4 (18.Bb2 Bd7+=) 18...h6= 19.h4 (19.f4 Bd7 20.g5 hg5 21.fg5 Nh7=) 19...e5 (19...Bd7!?=) 20.d5 Nb8 21.a5 Nfd7? (better is 21...Bd7!? 22.g5 hg5 23.hg5 Nh7+=) 22.Nb5+– Nc5 (22...Nf6 23.Na7 Rc7 24.ab6+–) 23.Bc5 bc5 (23...dc5 24.Na7 Rc7 25.ab6+–) 24.Na7 Rc7 25.Nb5 Re7 (25...Rb7 26.a6 Rb6 27.a7+–) 26.a6 Bb5 27.cb5 Nd7 28.Na5 Nf6 (28...Ra8 29.Nc4+–) 29.Bf1 (better is 29.b6!? Nd5 30.b7 Rb7 31.ab7 Rb8+–) 29...Ra8 1–0. Filippov,An (2475) – Nikhilesh,Kumar K (2240), Asian Juniors, 2004. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

5.d3 b5 6.c4 bc4 7.dc4 Bb7 8.Nbd2 d5 (8...d6 9.e4=) 9.c5 (9.cd5 Qd5 10.Rc1 Rc8=) 9...c6 10.Qb3 Bc8 11.e3 Be6 12.Qc2 a5 13.Nd4 Qd7 (13...ab4 14.Ne6 fe6 15.ab4 Ra1 16.Ba1=) 14.Be2 (14.b5 cb5 15.Bb5 Qc7+=) 14...Bg4 (14...ab4 15.ab4 Ra1 16.Ba1=) 15.f3+= Be6 16.0-0 (worse 16.Ne6 Qe6 17.Kf2 Na6=) 16...Ne8 17.Qa4 Bd4 (17...Nc7 A) worse 18.Ne6 Qe6 19.Bg7 Qe3 (19...Kg7?! 20.Kf2=+) 20.Rf2 Kg7-/+; B) 18.ba5 Rd8 19.Rab1+=) 18.ed4 Nc7 19.Nb3 Nb5? (better 19...ab4!? 20.Qb4 Bf5+=) 20.Na5+– Qc7? (better 20...Na6+–) 21.Bb5 cb5 22.Qb5 Bd7 23.Qd3 (23.Qb6 Qb6 24.cb6 Ra6+–) 23...Bf5 (23...Ba4 24.Qe3+–) 24.Qb3 Nc6 (24...Rd8 25.Rfc1+–) 25.Nc6 Qc6 26.a4 Rfb8 27.b5 Qc8 (27...Ra7+–) 28.c6 (better 28.Qd5 Rb7 29.Rfc1+–) 28...Qc6 29.bc6 Rb3 30.Rf2 (30.Ba3 Rc3 31.Bc5 e5+–) 30...Bd3 (30...Rb6 31.Rc1+–) 31.c7 (31.a5!?+–) 31...Rb7 32.Rd2 Bc4 33.Ba3 e6?? (better 33...Rc7 34.Bb4 Rb7=) 34.Bd6+– Rb6 35.Be5 Kf8 36.g4 (better 36.a5!? Rb3 37.Rc2+–) 36...Ke7+– 37.a5 Rc6? (better 37...Rb5+–) 38.Rb2+– f6 (38...Rc8 39.Rb6 Kd7 40.g5+–) 39.Rb8 fe5 (39...Ra7 40.Bf6! Kf6+–) 40.Ra8 Rc7 41.de5 Kd7 (41...Kf7 42.a6 d4 43.a7+–) 42.a6 Kc6 (42...d4 43.a7 Bd5 44.Rh8+–) 43.a7 Kb6 (43...d4+–) 44.Rb8 Kc6 45.a8Q (45.a8Q Kc5 46.Qa3 Kd4 47.Qb2 Ke3 48.Re1 Kf3 49.Qd4 Be2 50.Rf8 Rf7 51.Rf7) 1–0. Adjailton (1685) – Atiq_Rehman (1640), lichess.org, 2016.

5.d3 d5 6.e3 Nbd7 7.Be2 Nb6 8.0-0 Na4 9.Bd4 b6 10.c4 c5 11.Bf6 Bf6 12.Qa4 Ba1 13.Nbd2 Bg7 14.cd5 Qd5 15.e4 Qd7 16.Qd7 Bd7 17.bc5 bc5 18.Nc4 Bb5 19.Rc1 Rfd8 20.g3 Bd4 21.Nd4 cd4 22.Nd2 Rdc8 23.Rc8 Rc8 24.Nb3 Rc2 25.Nd4 Rb2 26.Nb5 Re2 27.Kf1 Rd2 28.d4 Rd3 29.Ke2 Rb3 30.a4 Rb4 31.Nc3 Rd4 32.Ke3 Rc4 33.Kd3 Rc7 34.f4 e6 35.Nb5 Rb7 36.Ke3 Kf8 37.h3 Ke7 38.g4 a6 39.Nd4 Rb4 40.Nc6 Kd7 41.Nb4 a5 42.Na6 Kc6 0–1. Chess4Win – PiumPium, lichess.org, 2019.

5.d3 d6 6.Nbd2 Nc6 7.g3 a5 8.b5 Nb8 9.Bg2 c6 10.a4 cb5 11.ab5 b6 12.0-0 Bb7 13.c4 Nbd7 14.Nb3 Nc5 15.Nbd4 e5 16.Nc6 Qc7 17.Nd2 Ng4 18.h3 Nh6 19.Ra2 (19.Bd5 Nf5=) 19...Nf5= 20.Nb1 Ne7 21.Ne7 Qe7 22.Bb7 Qb7 23.Nc3 Qd7 24.Nd5 Rab8 (24...Qh3 25.Nb6 Ra7 26.Nd5=) 25.Kg2+= f5 26.Ba3 (26.d4 ed4 27.Bd4 Bd4 28.Qd4 Qe6+/-) 26...f4 27.Bc5 dc5 28.g4 Kh8 29.f3 Rf7 30.h4 Qd8 31.Rh1 Bf6 32.Qe1 Rg7 33.Qf2 Rf7 34.Kf1 Bg7 35.Ke1 Rbb7 36.Kd1 Rbd7 37.Kc2 Rd5 38.cd5 Qd5 39.Rb2 (39.Ra4 Qd7 40.Rb1 Rf6=) 39...e4 (39...Qe6 40.e4=+) 40.fe4= Qe5 41.Ra2 (41.Rbb1!?=) 41...Qc3 42.Kd1 Qb3 43.Rc2 Bc3 (43...Bd4 44.Qe1 f3-+) 44.e3?? (better 44.h5!?=) 44...fe3 (44...Qb1 45.Ke2 f3 46.Qf3 Qc2 47.Kf1 Rf3 48.Kg1 Qf2) 45.Qe3-/+ Bd4 46.Qd2?? (better 46.Qg3=+) 46...Rf2-+ (46...Qb5?! 47.Re1-+) 47.Qf2 Bf2 48.Kd2 (48.Rh3 a4 49.Kc1 Bd4-+) 48...Bd4 (48...Bg3!? 49.Rhc1 Bf4 50.Ke2 Bc1 51.Rc1 Qb2 52.Kd1-+) 49.Rf1 Kg7 50.g5 (50.h5 a4 51.e5 Be5-+) 50...Qb4 (50...a4!? 51.Rfc1 a3 52.Rh1-+) 51.Ke2 Qb3 52.Rd2?? (52.Kd2 a4 53.e5-+) 52...a4 53.Rdd1 (53.Rc1 Qb5 54.Ra2 Qd7-+) 53...a3 54.Rb1 (54.Kf3 a2 55.Kf4 Qb5-+) 54...Bb2 (better 54...Qc2 55.Kf3 Qd3 56.Kg2 Qe2 57.Kg3 Be5 58.Rf4-+) 55.Rf6 (55.Rbd1-+) 55...Qc2 56.Ke3 Qb1 57.Rb6 Bd4 (57...Bd4 58.Kf4 Qf1 59.Kg3 Be5 60.Kg4 Qg2) 0-1. black_bishop_88 (2685) - tagapaticui (2175), Hourly SuperBlitz Arena, lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

5.d4 d6 6.e3 Nbd7 7.c4 c6 8.Be2 a5 9.b5 c5 10.d5 Nb6 11.0-0 e6 12.de6 Be6 13.Qc2 h6 (13...Bf5 14.Bd3 Bd3 15.Qd3=) 14.Nbd2 Qc7 15.e4 Nfd7 16.Bg7 Kg7 17.Qc3 Kh7 18.Nh4 Qd8 19.Qg3 Ne5 20.Rac1 Qg5 (20...g5 21.Nf5+/-) 21.Qg5 (better is 21.f4!? Qg3 22.hg3+–) 21...hg5= 22.Nhf3 Nf3 23.Nf3 f6 24.Rfd1 Rad8 25.Rd2 Rd7 26.Kf1 (26.h3 Kh6+=) 26...Re8 27.Ne1 Kg7 28.h3 Bf7 29.Bd3 Red8 30.Ke2 Re8 31.Kd1 Be6 32.Rcc2 Rh8 33.f3 Re8 34.Kc1 Nc8 35.Kb2 b6 36.Rc1 Ne7 37.Nc2 Ng8 (37...f5 38.Rcd1+=) 38.Rcd1 Red8 39.Ne3 Nh6 40.Rh1 Nf7 41.Be2 Ne5 42.Nd5 Bd5 43.Rd5 (worse is 43.ed5 Re7=) 43...Rh8 44.Rhd1 Nf7 45.Kc3 Re8 (45...Re7 46.Bd3+/-) 46.Kd2 Rde7 47.Ke1 (47.Ke3 f5 48.Bd3 Re5+=) 47...f5= 48.Bd3 Re5 49.Kf2 Rd5 50.ed5 Ne5 51.a4 Nd3 52.Rd3 Kf6 53.g4 f4 54.Rc3 ½–½. Sandercock,E Barry (1620) – Evans,James, WLS–ch Minor, 2005. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 0-0)

5.g3 a5 6.Bg2 d6 7.0-0 e5 8.c4 Be6 9.d3 h6 10.Nc3 Nc6 11.b5 Ne7 12.Nd2 Rb8 13.Rc1 b6 (13...c6=) 14.Nd5 (better 14.e3!?+=) 14...Nfd5 15.cd5 Nd5 16.Qc2 Rc8 17.e4 Ne7 18.d4 (18.Nc4 c6 19.Qa4 Bd7 20.bc6 Bc6-/+) 18...ed4-/+ 19.Nf3 c5 20.bc6 Nc6 21.Qd1 Qf6 22.Re1 b5 23.Qd3 (23.Re2 Ne5 24.Rc8 Rc8 25.Nd4 Bg4-+) 23...Bc4 24.Qd2 a4 25.Rcd1 Bb3 26.Rc1 Rfe8 (26...Ne5 27.Rc8 Nf3 28.Bf3 Rc8 29.Bd1-+) 27.Rc6 (27.Ba1!? Bc4 28.Rcd1-/+) 27...Rc6-+ 28.Bd4 Qe7 29.Bg7 Kg7 30.Nd4 Rc5 31.Qb2 (31.Nb3 ab3 32.Qb2 Qe5 33.Qb3 f5-+) 31...Qf6 32.Qd2 h5 33.h4 Rc4 34.Nb5 d5! 35.Qd5 (35.Qd5 Rd8 Decoy; 35.ed5 Rc2 Combination) 35...Rce4 36.Qe4 Re4 37.Re4 Bd5 38.Ra4? (better 38.Rb4 Bg2 39.Kg2 Qc6 40.Kf1-+) 38...Bg2 39.Kg2 Qc6 40.Kh2 Qb5 41.Rb4 (41.Rf4 f6-+) 41...Qa5 (41...Qc5!? 42.Kg2-+) 42.Rb3 Qa4 (42...Qd2 43.Rf3-+) 43.Rf3 (43.Re3 Kf6-+) 43...Qe4 (43...Qc2 44.Rf4-+) 44.Rf4 Qd3 45.a4 Qa3 46.Kg2 f6 47.Kh2 (47.Re4 Kf7-+) 47...g5 48.hg5 fg5 49.Re4 (49.Rf5 Kg6 (worse 49...Qa4 50.Rg5 Kh6 51.Rg8-+) 50.Ra5 h4 51.gh4 Qd6 52.Kg1 gh4-+) 49...Kg6 (better 49...Qf3 50.Re7 Kf8 51.Rh7 Qf2 52.Kh1 Qe1 53.Kh2 Qe2 54.Kh3-+) 50.Kg2 Qb3 51.Rd4 Qc3 52.Rd6 Kf5 53.Rb6 Qc4 (better 53...h4!? 54.gh4 gh4 55.Rb1-+) 54.Rb5 Kg6 55.Rb6 Kf7 56.Rb7 Kf6 57.Rb6 Kf7 58.Rb7 Ke6 59.Rb6 Kd7 60.Rb7 Kc6 61.Rb5 Qe4 62.Kh2 Qg4 63.Kg2 (63.Ra5 h4-+) 63...h4 (worse 63...Qa4 64.Rg5 Qe4 65.Kh2-+) 64.Rb3 Qe4 65.Kh2 Qa4 66.Rc3 Kd5 67.gh4 Qh4 68.Kg2 Qe4 69.Kh2 Qe5 70.Rg3 Ke4 71.Kg2 Qf4 72.Re3 Kd4 73.Rg3 Qe4 74.Kh2 g4 75.Re3 Qf4 76.Kg2 Qf5 (76...Qd6 77.Kg1-+) 77.Rg3 (77.Kg3 Kd5-+) 77...Qe4 78.Kh2 Qe2 79.Kg1 Qe1 80.Kg2 Qe4 81.Kh2 Qe6 82.Kg2 Kd5 83.Kh2 Qh6 84.Kg2 Qf4 85.Re3 Kd6 86.Rg3 Qe4 87.Kh2 Qe2 88.Kg2 Kd7 89.Re3 Qc4 90.Kg3 Qd4 0-1. black_bishop_88 (2655) - Reshetkov_Kirill (2640), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

5.h4 a5 6.b5 c5 7.h5 d5 8.h6 (8.hg6 fg6 9.e3 Bg4=) 8...Bh8=+ 9.e3 Nbd7 10.Be2 Re8 11.0-0 e5 12.c4 d4 13.ed4 ed4 14.d3 b6 15.Nbd2 Bb7 16.Ra2 (16.Nh2 Re7=+) 16...Ng4 (16...Qe7 17.Re1-/+) 17.Bc1 (17.Nd4!? Nh6 18.Bf3 Bf3 19.N4f3 Bb2 20.Rb2=) 17...Qc7 18.Ne4 Be4 19.de4 Ndf6 20.e5 Ne5 (better 20...Ne4!? 21.Qd3 Nc3-+) 21.Ne5=+ Qe5 (21...Re5?! 22.Bf4+=) 22.Bf3 Ne4 (22...Rad8!?-/+) 23.Re2=+ f5 24.Rfe1 Ra7 (24...Re6 25.Qd3 Rae8 26.Bd2=+) 25.g3 (25.Bg5!=) 25...Rae7=+ 26.Be4 (26.Qd3 Qf6=+) 26...fe4-/+ 27.Re4 Qe4 28.Re4 Re4 29.Kg2 Re1 (better 29...Bf6!?-/+) 30.Qf3= Rc1 31.Qd5 Kf8 32.Qd6 Kf7 (32...Kg8 33.Qd5 Kf8 34.Qd6 Kg8 35.Qd5=) 33.Qd5 (33.Qf4!? Bf6 34.Qc1+=) 33...Re6= 34.Qb7 Re7 35.Qb6 (better 35.Qd5!? Ke8 36.Qa8 Kd7 37.Qc6 Kd8 38.Qb6 Ke8 39.Qb8 Kd7 40.Qh8+-) 35...Be5-/+ 36.Qc5 Rd1 (better 36...Rc2!?=+) 37.Qd5+= Kf6?? (37...Ke8 38.b6 Rb1 39.c5+/-) 38.b6 (38.Qf3 Kg5 39.Qd1 Kh6 40.Qd2 Kg7 41.Qa5 g5+-) 38...d3?? (38...Rd2!?=) 39.c5 (39.Qf3 Ke6 40.Qg4 Kf6 41.Qd1 Rd7+-) 39...d2?? (better 39...Rd2+/-) 40.Qf3+- Ke6 41.Qd1 Kd5 (41...Rd7 42.c6 Rd5 43.c7 Bc7 44.bc7+-) 42.Qd2 Kc6 (42...Kc5 43.Qa5 Kd6 44.f4+-) 43.Qe3 (better 43.f4 Bb8 44.Qa5 Re2 45.Kf3 Rb2+-) 43...Bf6 (43...Bd6 44.Qf3 Kc5+-) 44.Qf3 Kc5 45.Qf6 (better 45.b7!? Rb7 46.Qb7 Kd6 47.Qh7 g5+-) 45...Rb7 46.Qe6 (better 46.Kf3 Rd7+-) 46...Kb5 (46...a4 47.Kf3+-) 47.Qe5 (better 47.a4 Kc5 48.Qb3 Rb6+-) 47...Kb6 48.Qe3 Ka6 49.Qd3 Rb5 (49...Ka7 50.Qd6 a4 51.Qd4 Kb8 52.f4+-) 50.Qd4 (better 50.a4 Ka7 51.Qb5 Ka8 52.Qa5 Kb7 53.Qb4 Kc6+-) 50...Kb7 (50...Rb7 51.Qc5+-) 51.Qd6 (better 51.Qd7 Ka6 52.Qh7+-) 51...Ka8 (51...Ka7 52.Qc7 Rb7 53.Qa5 Kb8 54.f4+-) 52.Qd7 (better 52.Qa6 Kb8 53.Qb5 Kc7 54.Qc5 Kd7 55.Qa7 Kc6 56.Qh7 Kb5 57.Qd7 Kc5 58.h7 Kc4 59.h8Q Kb3 60.Qd3 Ka2 61.Qc2 Ka3 62.Qhc3) 52...Rb7 53.Qd8 (53.Qd8 Ka7 54.Qa5 Kb8 55.Qe5 Rc7 56.a4+-) 1-0. black_bishop_88 (2515) - ajedrez2021 (2670), lichess.org, 2020. (=1.a3 g6 2.b4 Nf6 3.Bb2 Bg7 4.Nf3)

5.c4 d6

6.Nc3 a5 7.d4=.

6.Nc3 e5 7.e4 Bg4 8.Be2 Nc6 (8...Nbd7 9.0-0=) 9.d3 a5 10.b5 Bf3 11.Bf3 Nd4 12.0-0 Nd7 13.Nd5 (13.Na4 Qh4=) 13...Nc5 14.Bd4 ed4 15.Rb1 c6 16.Nf4 Qh4 17.g3 Qh6 18.Bg2 a4 19.bc6 bc6 20.Rb6 Rac8 21.Ne2 Qg5 22.f4 Qd8 23.Rb4 Attacking the isolated pawn on a4 23...Qa5 24.f5 Be5 25.fg6 (25.Qb1 Qc7=) 25...hg6 (25...fg6 26.Bf3=+) 26.Nf4 Rb8 27.Rb8 (27.Qf3 Bf4 (27...Rb4? 28.ab4 Qb4 29.Ng6+-) 28.Rb8 Rb8 29.Qf4 Qc7=+) 27...Rb8 28.Qg4 Qc7 29.h4 Qd7 30.Qg5 Qd8 31.Qg4 Rb3 (better 31...Bf4 32.Qf4 Qe7-/+) 32.Ng6+= Bg7 33.Nf4 Qf6? (better 33...Qd7 34.Qg5 f6+=) 34.Nh5 Qg6 35.Qc8 Kh7 36.Ng7 (better 36.Bh3 Qh5 37.Bf5 Kh6 38.Qg8 Qf5 39.Rf5 Rd3 40.Kg2 Ne4 41.Rh5 Kh5 42.Qh7 Kg4 43.Qe4 Kh5 44.Qh7 Kg4 45.Qd3 Kh5 46.Qh7 Kg4 47.Qe4 Kh5 48.g4 Kh6 49.g5 Kh5 50.Kh3 Bh6 51.Qh7 d3 52.Qh6) 36...Kg7+/- 37.Rf4 (37.Rf5 Ne6 38.Qd7+- (38.Qc6? Qg3 39.e5 de5-+)) 37...Nd3?? (better 37...Ne6 38.Rf3 c5+=) 38.Rg4+- Rb1 (38...Ne5 39.Rg6 fg6 40.Qc7 Nf7 41.e5 de5 42.Bc6 Rg3 43.Kf2+-) 39.Kh2 Ne5 40.Rg6 fg6 (40...Ng6 41.Qd8 Ne5 42.h5+-) 41.Qc7 Kh6 (41...Nf7 42.Qc6 d3 43.Qa4 d2+-) 42.Qd6 (better 42.Kh3 Nc4 43.Qd8+-) 42...Ng4= 43.Kh3 Nf2 44.Kh2 Ng4 45.Kh3 Nf2 46.Kh2 Ng4 ½-½. Doluhanova,E (2225) - Ezat,M (2405), Titled Tuesday, 2020. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.a3)

6.d4 c5 7.g3 (7.e3 cd4 8.Nd4 a5=) 7...Qb6 8.Qb3 (8.dc5 dc5 9.Qa4 cb4 10.Qb4 Qc7+=) 8...Nc6 (8...Na6 9.b5+=) 9.d5= Na5 10.Qc2 (10.Qa2 cb4 11.ab4 Qb4 12.Bc3 Qc4 13.Qa5 Nd5 14.Kd2 Nc3 15.Nc3–+) 10...cb4-/+ 11.Nbd2 (11.ab4 Qb4 12.Qd2 Qb3-/+) 11...Ng4 12.e3 (12.c5 dc5 (worse is 12...Qc5 13.Qc5 dc5 14.Bg7 Kg7 15.ab4+/-) 13.Bg7 Kg7 14.ab4 cb4-/+ (worse is 14...Qb4 15.Ra4 Qb6 16.Qc3 Qf6 17.Qa5+/-)) 12...Bf5 (12...b3!? 13.Qc1 Nf6-/+) 13.Qc1+= Ne3 14.fe3 Qe3 15.Be2 Bd3 16.Ng1 Bb2 17.Qb2 Nc4 18.Qb4 (18.Nc4 Bc4 19.ab4 Bd5-/+) 18...Be2 19.Ne2 Ne5 20.Qd4 (20.Qb7?? Rab8 21.Qa6 Rb2–+) 20...Nd3 21.Kf1 Qd2 22.Nf4 Qb2 23.Qb2 Nb2 24.Rb1 Nc4 25.Rb7 Rfb8 (25...e5 26.de6 fe6 27.Ke2–+) 26.Re7 Na3 (26...Kf8 27.Re2–+) 27.Kg2 (27.Kf2 a5–+) 27...a5 28.Rf1 (28.g4 Rb2 29.Kg3 a4–+) 28...Re8 (28...a4 29.Nd3 f5 30.Rc1–+) 29.Rd7 (29.Re8 Re8 30.Rc1 Kf8–+) 29...Nc4 30.Kh3 (30.Rc1 Re4–+) 30...Re5 (30...a4 31.Ng2 f5 32.Rb1–+) 31.Rc1 (31.Rb1–+) 31...g5?? (31...Re4!? 32.Rb1–+) 32.Nh5? (better is 32.Rc4!? gf4 33.Rf4 Rd5 34.Rff7 Rh5 35.Kg2+=) 32...g4! 33.Kh4 (33.Kg4 Ne3 Double attack (33...Rd5 Zwischenzug)) 33...Ne3 34.Rcc7 Nf5 (34...Rf8 35.Rc6–+) 35.Kg4-/+ Ne3 36.Kh4 Ng2 (better is 36...Re4!? 37.Kh3 Nd5-/+) 37.Kg4= Ne3 38.Kh4 Nd5 (38...Re4 39.Kh3 Nd5 40.Rc6-/+) 39.Ra7+= Ra7?? (better is 39...Ree8+=) 40.Rd8 (40.Rd8 Re8 41.Re8) 1–0. Ypma,Peter (2175) – Gutkind,Kedem (2065), 51. Groningen Open A, 2013. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

6.d4 Bf5 7.e3=.

6.e3 e5 7.d4 ed4 (7...e4 8.Nfd2=) 8.Nd4 Ng4 9.Ra2 (9.Nc3 Re8 10.Nf3 a5=) 9...c5 (9...a5 10.Be2 Qh4 11.g3=) 10.Nf3 Ne5 11.Be2 Nbc6 12.Ne5 de5 13.Bc3 Qd1 14.Kd1 Be6 15.Nd2 Rfd8 16.Kc1 cb4 17.ab4 b5 (17...h6 18.b5 Nb8 19.Bf3+=) 18.Ra6+= (worse is 18.cb5 Nd4 (worse is 18...Ba2 19.bc6 Bd5 20.b5+=) 19.Bd4 Ba2-/+) 18...Rac8 (18...Nb8 19.Re6 fe6 20.Bf3+= (worse is 20.cb5 Nd7=)) 19.Ne4 (19.c5!? e4 20.Rc6 Bc3 21.Ne4 Rc6 22.Nc3-/+) 19...Bf5 20.Nc5 (20.Ng3 Bd3 21.Kb2 Be2 22.Ne2 e4 23.Bg7 Kg7-/+) 20...bc4 (20...Bf8!? 21.Nb7 Rd7-/+) 21.e4= (worse is 21.Bc4 Bf8 22.Rd1 Rd1 23.Kd1 Nb4 24.Bb4 Bc5 25.Bc5 Rc5-/+) 21...Nd4 (21...Be6!? 22.Ne6 fe6=) 22.Bd4+/- ed4 23.ef5 d3 24.Bd3 (better is 24.Bf3!?+=) 24...cd3+= 25.Kd2 Rc7 (25...Bf8 26.fg6 hg6 27.Ra3+=) 26.f6 (26.f4 Bd4 27.fg6 hg6 28.Nd3 Bc3 29.Ke2 Kg7=) 26...Bh6 (26...Bf8 27.Rha1 (27.Nd3? Rcd7–+) 27...Bc5 28.bc5 Rc5 29.Ra7 Rc2 30.Kd1+=) 27.Kc3= d2 (27...Bf8 28.Kc4+=) 28.Rd1 Rb8 29.g3 Rb6 30.Ra2 (30.Ra5!? Rf6 31.f4+=) 30...Rf6+= 31.f4 g5 32.Rdd2 gf4 33.gf4 (33.Rd7 Rd7 34.Nd7 Rc6 35.Nc5 Rc7+=) 33...Bf4 (33...Rf4? 34.Rd8 Kg7 35.Rg2 Kf6 36.Rd6 Ke7 37.Rh6+–) 34.Rd7 Rd7 35.Nd7 Rc6 36.Kb3 Be3 37.Re2 (37.b5 Re6-/+) 37...Bg1 (37...Re6 38.Rg2 Kh8 39.Kc4-/+) 38.Rg2 (38.b5 Rd6 39.Rg2 Rg6+=) 38...Rg6-/+ 39.Re2 f6 40.Ra2 (40.Kc4 Kf7-/+) 40...f5 41.Kc4 Rd6 (41...Be3 42.Ne5 Rd6 43.Ra3-/+) 42.Nc5+= f4 43.Ra7 f3 44.Ra8 Kg7 45.Ra1 Be3 (45...Bh2 46.Rf1 Rf6 47.Kd4-/+) 46.Nd3 Bb6 (46...f2 47.Rf1+=) 47.Rf1= Rf6 ½–½. Cirulis,Ilmars (1945) – Nichols,Scott (2260), FICGS, 2016.

5.e3

5.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.a3 0-0 5.Nf3).

5.e3 d6 6.Be2 (--> 4.e3 0-0 5.Be2 d6 6.a3).

5.g3 b6

6.Bg2 Bb7 7.0-0 c5 8.c4 d6 (8...Nc6 9.bc5 bc5 10.Nc3=) 9.d3 (9.Nc3 Nc6=) 9...Nbd7 (9...Nc6 10.b5 Na5 11.Nc3=) 10.Nbd2 (10.Nc3 a6=) 10...Qc7 11.e4 (11.Qc2 Ng4=) 11...e6 (11...a5 12.bc5 bc5 13.Qe2=) 12.Re1= White prepares e5 12...d5 (12...a5!? 13.bc5 bc5=) 13.cd5+= ed5 14.e5 Ng4 15.d4 cd4 16.Rc1 Qd8? (better is 16...Qb8!?+=) 17.Bd4+– Re8 (17...Qb8 18.e6 fe6 19.Bg7 Kg7 20.Ng5+–) 18.e6 fe6 19.Bg7 Kg7 20.Nd4 Nge5 (20...Nf2 21.Kf2 e5 22.Nb5+–) 21.Qb3 (21.N2b3 Rc8 22.f4 Rc1 23.Nc1 Nc4 24.Ne6 Re6 25.Re6 Nf6+–) 21...Rc8 (21...Ba6 22.b5 Nc5 23.Qc3+–) 22.Rc8 Qc8 23.Bh3 Nc4? (23...Kh8 24.Be6 Re7 25.f4+–) 24.Ne6?? (better is 24.Nc4 dc4 25.Ne6 Kg8 26.Qc3+–) 24...Kg8+/- 25.Qc3 (25.Nf3 Re7+/-) 25...Re7 26.Rc1 (26.Nf3 Nd6 27.Qe3 Nf8+/-) 26...Nf8 (better is 26...Qe8!?+=) 27.Nf4+/- Qc6 (27...Qe8 28.Nc4 dc4 29.Qc4 Qf7 30.Qb5+–) 28.Bg2+– (28.Nc4?! d4 29.Bg2 Qg2 30.Ng2 dc3+=) 28...Qd6 29.Nc4 dc4 30.Qc4 Kg7 31.Bb7 Rb7 32.Qc6 (32.Qc3!? Qf6+–) 32...Qc6+/- 33.Rc6 Rd7 (33...g5 34.Nh3 g4 35.Nf4+/-) 34.h4 Kf7 (34...h6 35.Kg2+/-) 35.Kg2+– Ke7 (35...Rd1 36.Kf3+–) 36.Kf3 Kf7 (36...Rd1 37.Rc7 Rd7 38.Rc4+–) 37.Ke4 Ke7 (37...Re7 38.Kd4+–) 38.Nd5 Kf7 39.Ke5 Rd8? (better is 39...h5+–) 40.Rc7 Nd7 (40...Rd7 41.Rd7 Nd7 42.Kd6 Nf8+–) 41.Kd6 Ke8 42.Ra7 Nf6 (42...Nf8 43.Kc6 Rc8 44.Kb6 Nd7 45.Kb5 Rb8 46.Ka5+–) 43.Ke6 Nd5 44.Rh7 (44.Rh7 Nc7 45.Rc7+–) 1–0. Tabatabaei,M Amin – Urban,Konstantin, World Youth Chess Championship, 2016. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

6.Bg2 Bb7 7.0-0 d5 8.d3 Nbd7 9.Nbd2 c5 10.c4 d4 11.Qc2 Re8 12.e4 de3 13.fe3 ½–½. Bilic,V (2310) – Dumpor,A (2355), Jahorina BIH, 2012.

5.g3 d5

6.Bg2 c6 7.0-0 Bf5 8.d3 Nbd7 9.Nbd2 Be6 10.Qe1 h6 11.e4 de4 12.de4 Ng4 (12...c5 13.e5 Nd5 14.Qe4=) 13.Bg7 Kg7 14.Nd4 Nge5 15.Ne6 fe6 16.f4 Nf7 17.e5 Nb6 (17...Qb6 18.Kh1+/-) 18.Nb3+- Nd5 (18...Na4 19.Rd1 Qc7 20.Qe3+-) 19.Nc5 b6?? (better 19...Qc8+-) 20.Ne6 Kg8 21.Nd8 Rad8 (21...Nd8 22.c4 Nc7 23.Qd2+-) 22.c4 Nc7 23.Bc6 (better 23.Qe4 Kg7 24.Qc6 Rc8+-) 23...Rd3 (23...Rd4 24.Qc3 Rfd8 25.Bd5 R4d5 26.cd5 Nd5 27.Qc6+-) 24.Rd1 (better 24.Qe4 Rfd8 25.Qg6 Kf8+-) 24...Rfd8 (24...Rdd8 25.e6 Nd6 26.c5+-) 25.Rd3 Rd3 26.Rf3 (better 26.Qe4 Ra3 27.Qg6 Kf8+-) 26...Rd4 27.e6 (27.Qc3 Rd8+-) 27...Nd6 (27...Nd8 28.Be4+-) 28.c5 bc5 29.bc5 Nf5 30.Rb3 (better 30.Qe5 Na6+-) 30...h5 31.Rb8 Kg7 32.Qe5 Kh6 1-0. black_bishop_88 (2530) - Kayra_Kamer (2540), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

6.Bg2 c6 7.0-0 Bg4 8.d3 Bf3 9.ef3 Nbd7 10.f4 e6 11.Nd2 a5 12.Nf3 ab4 13.ab4 Qb6 14.Ra8 Ra8 15.Qb1 Ra4 16.Bc3 Ng4 17.Bg7 Kg7 18.Qb2 Kg8 19.c3 Qa7 20.d4 Nb6 21.h3 Nc4 22.Qe2 (22.Qc1 Nf6=) 22...Ra2=+ 23.Qe1? (23.Qd3 Nf6=+) 23...Nf6 (23...Nf2 24.f5 Ne4 25.fe6 fe6 26.Ne5-+) 24.Ne5? (better 24.Qc1!?-/+) 24...Nd2-+ 25.Kh2 (25.Nd3 Nf1 26.Bf1 Ne4-+) 25...Nf1 26.Qf1 Rc2 27.Qe1 Qa2 (27...Qa3 28.b5 cb5 29.f5 gf5 30.Qe3-+) 28.Nd3 Rd2 29.Qe3 Qc2 30.Ne1 Qd1 (better 30...Qb2 31.f5 ef5 32.Bf1-+) 31.Bf3 Qc1 32.Kg2 Qb2 (32...Ne4 33.Be4 de4 34.Qe4 Qc3 35.Nf3-+) 33.g4 Ne4! 34.Be4 de4 35.f5 Re2 (35...gf5?! 36.Qg5 Kf8 37.Qd8 Kg7 38.Qg5 Kh8 39.Qf6 Kg8 40.Qg5 Kh8 41.Qf6 Kg8 42.Qg5=) 36.Qg5 (36.Qf4 e5 37.de5 Re1 38.e6-+) 36...Rf2 (36...Re1 37.Qd8 Kg7 38.f6 Kh6 39.h4 Rg1 40.Kg1 Qa1 41.Kh2 Qh1 42.Kh1 g5 43.Qf8 Kg6 44.Qg7) 37.Kg3 Qe2 (37...ef5?! 38.Qd8 Kg7 39.g5 Qc3 40.Kf2 Qd2 41.Kf1 Qb4 42.Qf6 Kg8 43.Qd8 Qf8 44.Qc7-/+) 38.Qd8 Kg7 39.fe6 Qe3 40.Kh4 Rh2 41.Nf3 (41.Qf6 Kf6 42.ef7 Qe1) 41...Qf2 42.Kg5 h6 (42...ef3?? 43.Qf6 Kg8 44.Qf7 Kh8 45.Qf8) 43.Kf4 Qf3 44.Ke5 Qg3 (44...Qg3 45.Ke4 Re2) 0-1. black_bishop_88 (2645) - ZeroMeia (2335), Quarantε³ne-Bundesliga Team Battle, lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

6.Bg2 Ne4 7.Bg7+= Kg7 8.d3 Nf6 9.0-0 c6 10.Ne5 (10.c4 Bg4+=) 10...Nbd7 11.Nd7 Bd7 12.c4 Qc8 13.Nc3 Bh3 14.Rc1 Bg2 15.Kg2 d4 16.Ne4 Ne4 17.de4 e5 18.Qd3 f5 19.c5 (19.f4 fe4 20.Qe4 Qf5 21.Qe5 Qe5 22.fe5 Rfe8+=) 19...Qe6 20.b5 Rad8 21.bc6 (21.a4 fe4 22.Qe4 Rd5=+) 21...Qc6-/+ 22.f3 fe4 23.Qe4 Qe4 24.fe4 Rf1 25.Kf1 Rc8 26.e3 Kf6 27.Ke2 Ke6 28.Kd3 Rd8 29.c6 (29.Rb1 de3 30.Ke3 Rd7=) 29...de3 30.Ke3 bc6 (30...b6 31.Kf3=) 31.Rc6= Rd6 32.Rc7 Ra6 33.Rh7 Ra3 34.Ke2 Ra2 35.Kf3 a5 36.Kg4 (36.Rg7 Kf6 37.Ra7 a4=) 36...Kf6 (36...Ra4 37.Kf3=+) 37.h4 Re2 38.Kf3 Rb2 39.Ra7 Rb3 40.Kg4 Re3 (better 40...Ra3!?=) 41.Ra6+/- (41.Ra5?! Re4 42.Kf3 Rc4=) 41...Kg7 42.Ra5 Re4 43.Kg5 Rc4 44.Ra7 Kg8 45.g4 (45.Re7 Re4+-) 45...Rc6 (45...Rf4!?+/-) 46.Re7+- Kf8 47.Re5 Kg7 48.h5 (48.Re7 Kf8 49.Rd7 Kg8+-) 48...gh5 49.gh5 Rc7 50.Rd5 Kh7 51.Re5 Kg7 52.Rf5 (52.Rb5 Kh7+-) 52...Rb7? (better 52...Rc1!?+=) 53.Re5 (better 53.h6 Kh7 54.Rd5+/-) 53…Rc7= ½-½. black_bishop_88 (2655) - Goroshkov_Maksym (2275), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

5.g3 d6

6.d4 a5 7.Bg2+=.

6.d4 Nbd7 7.Bg2= Nb6 8.0-0 c6 (8...a5 9.Nbd2=) 9.Nfd2 (9.Nbd2 d5=) 9...Na4 (9...d5 10.Nc3+=) 10.Bc1= a5 11.Nb3 ab4 12.ab4 Nd5 (12...d5 13.Bf4=) 13.Qe1 (13.Qd2 Ndb6=) 13...Ndb6+= 14.e4 Be6 (14...e5 15.Be3+=) 15.Qe3 (15.N1d2 f5=) 15...c5+= 16.bc5 dc5 17.e5 (17.Nc5 A) 17...Qd4?! 18.Qd4 (worse is 18.Ne6 Qa1 19.Nf8 Qb1-/+) 18...Bd4 19.Ne6 Ba1 20.Nf8=; B) 17...Bd4 18.Nb7 Qd7–+) 17...Bb3 18.cb3 cd4 19.Qe1 (19.Qg5 Nc5 20.Ra8 Na8+=) 19...Nc5 20.Ra8 Qa8 (20...Na8 21.Qb4 Nd3 22.Qb7 Ne5 23.Bg5+=) 21.Qb4+= Nbd7 22.f4 Qa1 23.Bd2 (23.Na3 Qc3 24.Qc3 dc3=) 23...Qb2-/+ Attacks the isolani on b3 24.Bd5 (24.Qc4 Ra8-/+) 24...e6 (24...Ra8 25.Qc4 e6 26.Bg2–+) 25.Bc4 Ra8 26.Qb5 Ra1 27.Bb4 Rb1 (27...Ra2 28.Nd2-/+) 28.Bc5 Rf1 (better is 28...Nc5 29.Qc5 Rc1-/+) 29.Kf1 (better is 29.Bf1!? Nc5 30.Qc5-/+) 29...Nc5–+ 30.Qc5 Qc1 (30...Bf8!? 31.Qb6 Qh2 32.Qd4 Qg3–+) 31.Kg2-/+ Qc2 32.Kg1 (better is 32.Kh3!? Qf5 33.Kg2 Qe4 34.Kf2 Qc2 35.Kg1–+) 32...d3–+ 33.Qc8 Bf8 34.Be6 Qc5 (34...Kg7 35.Qd8 Bc5 (35...fe6?! 36.Qf6 Kg8 37.Qe6 Kh8 38.Qf6 Kg8 39.Qe6 Kg7 40.Qf6 Kg8 41.Qe6=) 36.Kh1 fe6 37.Qf6 Kg8 38.Qe6 Kf8 39.Qc8 Kf7 40.Qb7 Ke6 41.Qc6 Kf5–+) 35.Kg2+= fe6 (35...d2 36.Qc5 Bc5 37.Bg4+=) 36.Qe6= Kh8 37.Qf6 Kg8 (37...Bg7 38.Qd8 Qf8 39.Qd3=) 38.Qe6 Kh8 39.Qf6 Bg7 40.Qd8 Qf8 41.Qd3 Qe8 42.Qd5 Qc6 43.Qc6 bc6 44.Kf3 Kg8 45.Ke4 Kf7 (45...h5 46.h3=) 46.g4 White intends f5 46...Bf8 47.f5 g5 (47...Bc5 48.Kf4=) 48.Kd4 (48.Kd3 Ba3=) 48...Ba3 (48...Bb4 49.Kc4 c5 50.Kd3=) 49.h3 (49.Kc4 Ke7=) 49...Ke7 (49...c5 50.Kd5=) 50.Kc4 (50.Kc3 c5=) 50...Bb2 51.Kc5 (51.e6 Kd6=) 51...Be5 52.Kc6 Bc3 (52...Bd6 53.Kd5=) 53.Kc5 Bb2 54.Kd5 (54.b4 Ba3=) 54...Ba3 55.Ke5 (55.Kc4 Kd6=) 55...Bb2 (55...Bb4 56.Kd4=) 56.Kd5 Ba3 (56...Kd7 57.Kc4=) 57.Ke5 (57.Kc4 Kd6=) 57...Bd6 (57...h6 58.Kd5=) 58.Kd5 Kd7 59.f6 (better is 59.Ke4=) 59...h6 60.b4? (better is 60.f7!?-/+) 60...Bb4–+ 0–1. Trajkovski,Mile (2200) – Jacimovic,Dragoljub (2465), Macedonian Open, 2002. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.g3 d6)

6.Bg2 Nbd7 7.0-0 e5 8.c4 Re8 9.d4 e4 10.Nh4 (10.Ne1 Nb6 11.Nd2 Bf5=) 10...e3 (10...Nb6 11.c5 Nc4 12.Bc1-/+) 11.fe3= Ng4 12.Bc1 Ne3 13.Be3 Re3 14.Ra2 Nf6 (14...Qe7 15.Bf3=) 15.Bf3 Re8 16.Ng2 Bg4 (16...d5 17.cd5 Nd5 18.Rd2=+) 17.Nc3 White plans d5 (better 17.Bb7!? Rb8 18.Bc6+/-) 17...Bf3= 18.ef3 c5 19.bc5 dc5 20.d5 Qd6 21.Re2 a6 22.Ne4 Ne4 23.fe4 Bd4 24.Kh1 b5 25.Qd3 Rab8 Black prepares the advance b4 26.Ne1 b4 (better 26...bc4 27.Qc4 f5 28.ef5 Re2 29.Qe2 Qd5 30.Nf3 gf5-/+) 27.ab4+/- cb4?? (better 27...Bg7 28.bc5 Qc5+/-) 28.Nc2 (better 28.Qd4 Qc7 29.Nd3+-) 28...Bc3 29.Ne3 (29.Nd4 a5=) 29...a5 (29...Kg7 30.Ng4=+) 30.Ng4= a4 (30...Kg7 31.Rc2 Kf8 32.Rc3 bc3 33.Nf6+/-) 31.Ref2 (31.Nh6 Kg7 32.Rf7 Kh8+/-) 31...Rb7 (better 31...Qc5!?=+) 32.Nh6+/- Attacking the backward pawn on f7 32...Kg7 33.Nf7 Qe7 34.Qe3 Qe4 35.Qe4 Re4 36.Nd6 Rbe7 (36...Ree7!? 37.Nb7 Rb7+/-) 37.Ne4+/- Re4 38.c5 Rc4 39.c6 Be5 (39...a3 40.Rf7 Kh6 41.Ra7+/-) 40.Re2 Bc3? (better 40...Bf6 41.Rf4 Rc1 42.Kg2 b3+-) 41.Re7 Kh6 42.h4?? (42.c7 b3 43.d6 Ba5+-) 42...b3? (42...a3 43.c7 Rc7 44.Rc7 Be5+-) 43.Rff7 (better 43.c7 b2 44.d6+-) 43...Kh5+/- 44.Kg2 Kg4?? (44...b2 45.Rf1 Bb4+/-) 45.Rb7 White prepares c7 (45.c7 Rc7 46.Re4 Kh5 47.Rc7 h6 48.Kh3 g5 49.g4 Kg6 50.Re6 Bf6 51.h5) 45...b2?? (better 45...Be5 46.c7 Bc7 (46...Bg3?? 47.c8Q Kh4 48.Qc4 Kh5 49.Rh7 Kg5 50.Kg3 a3 51.Qf4) 47.Rbc7 Rc7 48.Rc7 b2=) 46.Rf4!+- (46.Rh7 Bb4 47.Rb4 Rb4-+) 46...Rf4 47.gf4 a3 (47...Ba5 48.d6 a3+-) 48.c7 a2 49.c8Q Kf4 50.Qf8 (50.Qc4 Kf5 51.Rf7 Ke5 52.Re7 Kd6 53.Re8 b1Q 54.Qc6) 50...Ke4 (50...Ke3 51.Re7 Kd3 52.Qf3 Kc4 53.Rc7 Kb5 54.Qd3 Ka5 55.Qc3 Kb5 56.Qc5 Ka4 57.Ra7 Kb3 58.Ra3) 51.Qf3 Kd4 52.Rb2! Bb2 (52...a1Q 53.Rd2!! Kc5 54.Rc2+-) 53.Qf2 (better 53.Qf6 Kd5 54.Qb2 Ke6+-) 53...Kc3 54.Qe3 (better 54.d6 a1Q 55.d7 Qa8 56.Qf3 Qf3 57.Kf3+-) 54...Kc2 55.Qe2 Kb3 56.Qd3 Bc3 57.Qb5 Kc2 58.Qa4 Kb2 59.d6?? (better 59.Qb5 Kc2 60.Qe2 Kb3 61.Qb5 Kc2=) 59...a1Q-+ 60.Qa1 (60.Qb5 Kc1 61.Qf1 Kd2 62.Qf2 Kd3 63.Qf3 Kd4 64.d7 Qa2 65.Kg1 Qb1 66.Kg2-/+) 60...Ka1 61.d7 (61.Kf3 Kb2 62.Ke4 h5-+) 61...Bf6 62.Kf3 (62.h5 Kb2-+) 62...Bh4 63.Kg4 Bd8 64.Kf4 Kb2 65.Ke5 Kc3 66.Ke6 (66.Kd5 Kd3 67.Kd6 g5-+) 66...Kc4 (better 66...Kd4 67.Kf7-+) 67.Kf7 (67.Ke5 h5 68.Ke4 g5-+) 67...Kc5 (better 67...g5 68.Ke6 g4 69.Kf5-+) 68.Ke8 (68.Ke6-+) 68...Bb6 69.Ke7 (69.Kf7 h5 70.Kg6 h4-+) 69...Kc6 (better 69...h5 70.d8B Bd8 71.Kd8-+) 70.Ke6. black_bishop_88 (2665) - Josefinoo1 (2135), Hourly SuperBlitz Arena, lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

4.a3 d6

5.c4 0-0 6.d4 Bg4 7.Nbd2 Nc6 8.d5 Nb8 9.h3 Bc8 10.e4 a6 11.Bd3 e5 12.Qc2 Nh5 13.g3 f5 14.0-0-0 Bd7 15.Rdg1 b5 16.Nh4 bc4 17.Nc4 fe4 18.Be4 Bb5 19.Na5 Bh6 20.Kb1 Be8 21.Ng6 Bg6?? 22.Bg6+– hg6 23.Qg6 Bg7 24.Qh5 Rf2 25.Rf1 Rf1 26.Rf1 Nd7 27.Qf7 Kh8 28.Rf5 Nf6 29.g4 Qe8? 30.Rf6 Qf7 31.Rf7 1–0. Bieszk,Stanislaw – Vontina,Maria, RN–2011–0-00384, 2011.

5.c4 c5 6.g3 b6 7.Bg2 Bb7 8.0-0 0-0 9.Qb3 Qc7 10.Nc3 a6 11.Rac1 Nbd7 12.Nd5 Nd5 13.Bg7 Kg7 14.cd5 Rac8 15.d3 Qb8 16.Nd2 Qa8 17.e4 b5 18.Qb2 Kg8 19.Nb3 Ne5 (better 19...e6!? 20.de6 fe6=) 20.Nc5!+/- (worse 20.bc5 Nd3 21.Qd4 Nc1 22.Rc1 dc5 23.Nc5 Qa7-/+) 20...dc5 (better 20...Rc5!? 21.bc5 Nd3+/-) 21.Qe5+- cb4 22.ab4 Rfe8 23.h4 a5 24.h5 ab4 25.h6 f6 26.Qe6 Kf8 27.d6 Qa6 (27...Rc3 28.Rc3 bc3 29.de7 Re7 30.Qf6 Rf7 31.Qh8 Ke7 32.Qc3 Qd8+-) 28.e5 Rc3 29.ef6 (better 29.Bd5 Bd5 30.de7 (30.Qd5?! ed6 31.ef6 Re5+=) 30...Re7 31.Qa6 fe5 32.Qb5+-) 29...ed6?? (29...Qd6 30.Qd6 ed6 31.Bb7 Kf7+-) 30.Qd7 (30.Qd7 Re5 31.Qg7 Ke8 32.f7 Kd8 33.f8Q Re8 34.Qge7 Kc8 35.Qfe8) 1-0. Barath,Kalyan M (2090) - Shah,Vishwa (1760), Ahmedabad IND, 2019. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2)

5.d3 0-0 6.g3 e5 7.Bg2 c6 8.e4 (8.0-0 Be6=) 8...a5 (8...Nbd7 9.0-0=) 9.Nbd2 ab4 10.ab4 Ra1 11.Qa1 Na6 12.Bc3 (12.c3 Be6=) 12...Be6 (12...Qe7 13.0-0=) 13.Ng5 (13.0-0 Nd7=) 13...Bd7 14.0-0 Ne8 (14...Ng4 15.Ngf3=) 15.Ngf3 Nec7 (15...f5 16.Qa2 Kh8 17.Qa5=) 16.Qb1 (16.d4!?=) 16...f5+= 17.Ba1 (17.Re1 g5+=) 17...fe4 18.Ne4 Qe7 (18...Bg4 19.Qb3 Nd5 20.Nfd2+=) 19.Re1 Bg4 20.Ned2 Qf7 21.Kh1 (21.Ne4 Qd7 22.Nfd2 b5+=) 21...Qf5 22.d4 (22.Qb3 Kh8+=) 22...Qh5 (better is 22...Bf3!? 23.Nf3 ed4-/+) 23.de5= d5 (23...Rf3 24.ed6 Rf2 25.dc7 Nc7 26.Ne4+/-) 24.Qb3+= Ne6 (24...Rf7 25.b5 Nb5 26.e6+=) 25.Kg1 Bh6 26.c4 Qf5 27.cd5 cd5 28.Rf1 Nac7 29.Nh4 Qh5 30.Ndf3 g5 31.h3 gh4 32.hg4 Qg4 33.Nh4 (33.gh4? Nf4 34.Ne1 Nce6–+ (34...Qh4?! 35.Qg3 Qg5 36.Kh2+=; 34...Ng2?! 35.Ng2 Rf3 36.Qd1+=)) 33...Bg5 34.Nf3 (34.Bf3 Qc4 35.Qc4 dc4 36.Bb7 Rb8+/-) 34...Be7 35.Nh2 Qc4 (better is 35...Qb4 36.Bd5 Nd5 37.Qd5 Qb6+/-) 36.Rc1?? (better is 36.Qc4 dc4 37.Bb7+/-) 36...Bb4 (better is 36...Qb3 37.Bd4 Nd4 38.Rc7 Ne2 39.Kh1 Rf2 40.Rc8 Kg7 41.Rg8 Kg8 42.g4 Qg3 43.Bd5 Kf8 44.Bb7 Qh2) 37.Rc4+– h5 (37...dc4 38.Qb4 Rd8 39.Ng4 Rd1 40.Kh2+–) 38.Nf3 (better is 38.Rb4 Ra8 39.Bb2 Rd8 40.Rb7 Nc5+–) 38...Bc5 (38...dc4 39.Qb4 Rd8 40.Bh3 Rd1 41.Kg2 Ra1 42.Qc4+–) 39.Bc3 (39.Rh4 b5+–) 39...Kg7 (39...dc4 40.Qb7 Rd8+–) 40.Nh4 (better is 40.Rh4 b5 41.Rh5+–) 40...Ra8 1–0. Gareev,Timur (2525) – Perdomo,Leandro (2310), XLIII WJun Kochin IND, 2004. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6)

5.e3 0-0 6.Nc3=.

5.e3 Nbd7 6.d4 e5 7.de5 de5 8.Ne5 0-0 9.Nd7 Bd7 10.Be2 Qe7 11.c4 Rad8 12.Qc2 Bf5 13.Qc1 Rfe8 14.Nd2 Rd7 15.0-0 Red8 16.Nf3 Bg4 17.h3 Bf5 18.Nd4 Be4 19.Bf3 (19.f3 Bf5+/-) 19...Bf3 20.Nf3 (worse is 20.gf3 c5 21.bc5 Qc5+=) 20...c5 21.b5 b6? 22.Qc2 h5 23.Rad1 Rd1 24.Rd1 Rd1 25.Qd1 Kh7 26.Qd3 Ne4 27.Bg7 Kg7 28.Kf1 f5 29.Nd2 Nd2 30.Qd2 Kh6 31.g3 Qe4 32.Ke2?? Qc4= 33.Qd3 Qa2 34.Kf3 c4 35.Qc3 Kh7 36.h4 Qb1?? 37.Qc4+– Qd1 38.Kg2 1–0. Fournier,Frederic – CDMGALLO, Active, 2007.

5.e3 e5

6.c4 Bg4 7.Be2 Nbd7 (7...e4 8.Nd4 Be2 9.Qe2=) 8.0-0 0-0 9.h3 Bf3 10.Bf3 c6 11.Nc3 Qc7 (11...Nb6 12.d3=) 12.Rc1 a5 13.b5 Rfe8 14.Na4 (14.d3 Rac8+=) 14...c5 (14...e4 15.Be2=) 15.d4 (better 15.d3+=) 15...b6? (better 15...ed4 16.ed4 Rad8+=) 16.dc5 dc5 17.Ba8 Ra8 18.Qd2 Ne4?? (18...Rd8 19.Nc3+-) 19.Qc2 (better 19.Qd5 Re8 20.Qe4+-) 19...f5 20.Rfd1 Ndf6 21.Nc3 (21.Rd3 Rf8+-) 21...Nc3 22.Bc3 Ne4 23.Rd5 Re8 24.Rcd1 Nf6 25.Rd6 Re7 26.Qd2 Ne4? (26...Kf7+-) 27.Rd8 (27.Qd5 Rf7 28.Rd8 Bf8 29.Be5 Qe7+-) 27...Kf7 (27...Bf8 28.Qd5 Kg7 29.Bb2+-) 28.Qd5 Kf6 29.f3 (better 29.Qg8 f4 30.Qh7+-) 29...Nc3-/+ 30.Rd6? (30.Qd6 Kf7 31.Qc7 Rc7 32.R1d7 Rd7 33.Rd7 Kf8 34.Rb7-/+) 30...Kg5-+ 31.f4 (31.Qd2 Nd1 32.e4 f4 33.Qd1 Kh5-+) 31...ef4 (better 31...Kh6 32.Qd2 Nd1-+) 32.ef4 Kh6 (better 32...Kh5 33.Qf3 Kh6-+) 33.Rd7?? (better 33.Qf5 Bd4 34.R1d4 cd4 35.Qf8 Rg7 36.Qf6-/+) 33...Nd5-+ 34.Rc7 Nc7 35.Rd6 Bd4 36.Kf1 Re4 (36...Re6 37.Rd8-+) 37.Rb6 (37.g3 Re6 38.Rc6 Rc6 39.bc6 a4-+) 37...Rf4 38.Ke2 Rf2 39.Kd3 (39.Kd1 Rg2 40.Rc6 Ne8-+) 39...Rg2 40.Rc6 (40.Rd6 Ne8 41.Rd8 Ng7-+) 40...Na8 (better 40...Ne8 41.b6 Nf6 42.Rd6-+) 41.Rc8 (41.Ra6 Rg3 42.Kc2-+) 41...Nb6 42.Rc6 Na4 43.b6 Rb2 (43...Nb2) 44.h4 f4 (better 44...Rf2!? 45.Rc5 Bc5 46.b7-+) 45.h5 f3 46.hg6 hg6 47.b7 Rb7 (47...f2 48.Rf6 Bf6 49.Ke4 Nc3 50.Kf3 f1Q 51.Kg4 Qf5 52.Kg3 Ne4) 48.Ra6 Re7 49.Ra8 (49.Re6 Re6 50.Kc2 Re2 51.Kb3 Nb6 52.a4 Rb2 53.Ka3 Nc4) 49...Kg5 (49...Re3 50.Kc2 Re2 51.Kb3 Nb6 52.Rh8 Bh8 53.a4 Rb2 54.Ka3 Nc4) 50.Rf8 (50.Rd8 f2 51.Rd5 Kf4 52.Kc2 f1Q 53.Re5 Nb2 54.Re4 Ke4 55.Kd2 Qd1) 50...Bf6 (50...Re3 51.Kc2 Re2 52.Kb3 Nb6 53.Rf5 Kf5 54.a4 Rb2 55.Ka3 Nc4) 51.Rb8 f2 52.Rb1 (52.Kd2 f1Q 53.Re8 Qe2 54.Kc1 Bb2 55.Kb1 Nc3) 52...Re1 53.Re1 (53.Kd2 Rb1 54.Ke3 Bd4 55.Ke4 Nc3 56.Kd3 f1Q 57.Kd2 Qe2) 53...fe1Q 54.Kc2 Qc3 (54...Qe2 55.Kb3 Qd1 56.Ka2 Qc2) 55.Kd1 Nb2 56.Ke2 Qd3 (56...Bd4 57.Kf1 Qf3 58.Ke1 Bc3) 57.Kf2 Kg4 58.Ke1 (58.Kg2 Bd4 59.a4 Qh3) 58...Bc3 (58...Bh4) 59.Kf2 Qf3 (59...Bd4 60.Kg2 Qh3) 60.Kg1 Qe2 (60...Bd4 61.Kh2 Qh3) 61.Kh1 (61.a4 Kf3 62.Kh1 Qg2) 61…Kh3 (61...Kh3 62.Kg1 Qe1; 61...Qf1 62.Kh2 Be5) 0-1. carlos78 (2215) - outlier (2115), Rated Blitz game, lichess.org, 2014.

6.d3 Bg4 7.Be2 0-0 8.Nbd2 Nbd7 9.h3 Be6 10.c4 d5 (10...a5 11.0-0=) 11.cd5 (11.Ne5 Re8+/-) 11...Bd5 12.0-0 (12.Ne5?! Bg2 13.Rh2 Bd5=) 12...Re8 13.Nc4 e4 14.de4 Be4 15.Ncd2 Bc6 16.Nd4 Bd5 17.N2f3 c5 18.bc5 Nc5 19.Rc1 b6 20.Bc4 Bc4 21.Rc4 Nce4 22.Qc2 Qd5 23.Rc1 Nd6 24.Rc7 Nb5 25.Nb5 Qb5 26.Nd4 Qd5 27.Qc6 Ne4?? 28.Qd5+– (28.Qd5 Ng5 29.Qg5+–) 1–0. Fournier,Frederic (1755) – Polek (1770), Active (5/0), 2004.

6.Be2 Qe7 7.0-0 Nbd7 8.d3 0-0 9.Nbd2 a5 10.b5 b6 11.c4 Bb7 12.e4 Nc5 13.Nb3 Nfd7 14.Nc5 Nc5 15.Nd2 f5 16.Nb3 (16.ef5 Qg5 17.Nf3 Qf5 18.d4 ed4 19.Bd4 Bd4 A) 20.Qd4 Nb3 (20...Bf3 21.Bf3 Ne6 22.Bd5+/-) 21.Qh4 Na1 (21...Bf3?! 22.Bf3 Na1 23.Bd5 Kh8 24.Ba8=) 22.Ra1 Rae8-+ (22...Bf3?! 23.Bf3 Rae8 24.Qd4-+); B) 20.Nd4=) 16...Nb3 (16...Na4!? 17.Qc2 Nb2-/+) 17.Qb3=+ fe4 18.c5 Kh8 19.c6 Bc8 (better 19...ed3!? 20.Qd3 Bc8=+) 20.de4+= Be6 21.Bc4 Bc4 22.Qc4 Qf7 23.Qf7 Rf7 24.f3 Kg8 25.Rad1 Bh6 26.Rd3 Kf8 27.a4 Re7 28.Rfd1 Re6 29.g3 Kf7 30.Kg2 Ke7 31.Bc3 Rf8 32.Rf1 Ref6 33.Bd2 (33.Re1!?+=) 33...Bd2= 34.Rd2 Re6 (34...g5 35.h3=) 35.Rdf2 Ref6 36.f4 Ke6 37.h3 h6 38.Rf3 Ke7 39.f5 g5 (39...gf5 40.Rf5 Rf5 41.ef5=) 40.g4 Kf7 41.h4 Rg8 42.Rh3 Rg7 (42...h5 43.Rh2+/-) 43.Kf3 Ke7 (43...gh4!? 44.Rh4 Rg5+/-) 44.Rfh1 Rff7 45.hg5 hg5 46.Rh8 Rf6?? (better 46...Rf8+-) 47.Rc8 (47.Rc8 Rgf7 48.Rc7 Kd8 49.Rf7 Rf7 50.Rh5+-) 1-0. black_bishop_88 (2535) - samidescalona2002 (2500), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3)

5.e3 Bg4

6.c4 0-0 7.Nc3=.

6.c4 Nbd7 7.Be2= 0-0 8.0-0 Bf3 (8...a5 9.Nc3=) 9.Bf3+= c6 (9...a5 10.b5 Ne5 11.Bb7+/-) 10.b5 (10.d4 e5+=) 10...Rc8 (10...Ne5 11.Be2=) 11.bc6 bc6 12.d4 e5 (12...c5 13.Nd2=) 13.Qc2 (13.Nd2 Re8+=) 13...ed4 14.ed4 d5 15.c5 (15.Nd2 Bh6+=) 15...Rb8 (15...Ne4 16.Nd2 Ng5 17.Rab1=) 16.Nd2 Ne8 17.Bc3 (17.Rab1=) 17...f5 (17...Nc7 18.Nb3=) 18.g3 (18.Rab1 Nef6+/-) 18...Nef6 (18...Nc7 19.Bg2=) 19.Bg2 (19.Rab1 Qe7+=) 19...Ne4= 20.Nf3 (20.Ne4 de4 21.Rfb1 Rb1 22.Rb1 Nf6+=) 20...Nc3 21.Qc3 Nf6 22.Ne5 Qc7 23.Qe3 Ne4 24.Be4 fe4 25.f4= ef3 26.Rf3 Rf3 27.Qf3? Be5-/+ 28.de5 Qe5 29.Rf1 Qd4 30.Rf2 Qc5?? 31.Qf7+– Kh8 32.Qf6 Kg8 33.Qf7 Kh8= 34.Kg2 Qd4 35.Qc7 Qe4 36.Kh3 Re8 37.Rf7? Qe6–+ 38.Kh4?? Qe4 39.g4?? Qe1 40.Kh3 Re3 41.Kg2 Qe2 42.Rf2 Qg4 43.Kf1 Qh3 44.Rg2 Rf3 45.Kg1 –+. OPA – Bennyhill, Live Game Caissa's Web, 2004.

6.Be2 Nbd7 7.h3 Be6 8.Qc1 (8.0-0 0-0+=) 8...0-0 9.d3 b6 (9...Nb6 10.Nc3=) 10.d4 (10.0-0 Bd5=) 10...Ne4 (10...c5 11.c4=) 11.c4 (11.Nbd2 Ndf6+=) 11...d5= 12.cd5 (12.0-0 dc4 13.Bc4 Bc4 14.Qc4 c5+=) 12...Bd5 13.Nbd2 f5 (13...Ndf6 14.Ne4 Ne4 15.0-0=) 14.0-0 Bb7? (better is 14...c6=) 15.Ne4 Be4 16.Qc4 (16.Bc4 e6 17.Be6 Kh8+–) 16...Kh8+/- 17.Rfe1 (17.Ng5 Nf6 18.Ne6 Bd5 19.Nd8 Bc4 20.Bc4 Rfd8+/-) 17...c5? (17...c6 18.Rad1+=) 18.bc5 (18.Ng5!?+–) 18...bc5 (18...Nc5!? 19.Rac1 Bd5+=) 19.Ng5+/- Nf6 (19...Qb6 20.Ra2 cd4 21.Nf7 Rf7 22.Qf7 Qd6-/+) 20.Nf7?? (better is 20.dc5 Qb8 21.Ne4 Qb2 22.Ng5+–) 20...Rf7!–+ 21.Qf7 (better is 21.dc5 Bd5 22.Qa6–+) 21...Bd5 22.Qd5 (22.Qg7 Kg7 23.dc5 Qc7–+) 22...Nd5 23.Bf3 Rb8 24.Rab1 c4 25.Ba1 Rb1 26.Rb1 Bf6 (26...e6 27.Rc1 Qa5 28.Rc4 Qe1 29.Kh2–+) 27.Rb5 (27.Be2 Qc7–+) 27...e6 28.Bb2 c3 (28...Be7 29.g4–+) 29.Bc1 Qd7 30.Bd5 (30.Rc5 Qa4 31.Bd5 Qd1 32.Kh2 Qc1 33.Be6–+) 30...Qb5 31.Be6 Qb1 32.a4 Qc1 33.Kh2 Qb2 (33...Qb2 34.Ba2 Qf2 35.Bf7 Bh4 36.Bc4 Bg3 37.Kh1 Qe1 38.Bf1 Qf1; 33...Bh4 34.g3 Qf1 35.Bd5 Qf2 36.Kh1 Bg3 37.Bg2 Qe1 38.Bf1 Qf1) 0–1. lopesqwf – bluewolf, net–chess.com, 2018.

6.h3 Bd7=.

4.b5 0-0

5.Nc3 a6+= 6.a4 d6 (6...d5 7.e3+=) 7.e3= Bg4 (7...e5 8.Be2+=) 8.Be2 Nbd7 (8...c5 9.bc6 Nc6 10.h3=) 9.h3 Bf3 10.Bf3 Ne5 (better is 10...Ra7=) 11.Bb7+/- Ra7 12.Ba6 Nc4 13.Ba3 Nd5?? (better is 13...Qa8 14.Qf3 Ne4 15.Qe4 Qe4 16.Ne4 Ba1+/-) 14.Nd5+– Ba1 15.Qa1 Na3 (15...c6 16.Nb4 Qa5 17.Nc6 (17.bc6?! Ra6 18.Na6 Qd2 19.Kf1 Na3+=) 17...Qd2 18.Kf1+–) 16.Qa3 c6 17.Nc3 c5 18.0-0 Qa5 19.Rd1 e6 20.Ne4 Qd8 21.Qd3 Rd7 22.Qc3 e5 23.Rb1 f5 24.Qb3 Kg7? 25.Nc3 d5 26.b6 Qb8 27.a5 Rfd8 28.Nb5 d4 29.ed4 ed4 30.Nc7 Rd6 31.Ne6 Kf6 32.Nd8 (32.Nd8 Rd8 33.Bc4+–) 1–0. mic (2130) – kode (2420), net–chess.com, 2008.

5.Nc3 b6 6.d3 Bb7 7.e4 c6 8.Be2 c5 9.0-0 e6 10.Rb1 d5 11.ed5 ed5 12.a4 Re8 13.Re1 a6 14.d4 Nbd7 15.dc5 Nc5 16.Ba3 Qc7 17.Bd3? (17.a5 Ncd7 18.ba6 Ba6 19.Ba6 Re1 20.Qe1 Ra6 21.ab6 Nb6=) 17...Rad8 (better is 17...Re1 18.Ne1 Nd3 19.ba6 A) 19...Qc3?! 20.ab7 Re8 21.b8Q (worse is 21.Nd3 Qa3 22.Rb6 Rb8-/+) 21...Rb8 22.Qd3=; B) 19...Ba6 20.cd3 Qc3–+) 18.Re8 Re8 19.Bc5 Qc5 20.ba6 Ba8 21.Nb5 Ng4 22.Qf1 d4 23.Nd2 Bh6 24.Nb3?? Qc6 25.N3d4 Qd5 26.h3 Ne5?? 27.Nc7+– Qd4 28.Ne8 Nd3 29.Qd3 Qe5 30.Qd8 Bf8 31.Nc7 Bc6 32.a7 Qe4 33.f3 Qc2 34.Rb6 Qc1 35.Kh2 Qf4 36.Kg1 Qe3 37.Kh1 Qb6-/+ 38.Qb8 Qe3 39.a8Q? Ba8?? 40.Na8= Kg7 41.Qb2 Kh6 42.Nb6?? Qe1–+ 43.Kh2 Bd6 44.g3 Qg3 45.Kh1 Qf3 46.Qg2–+ Qd1 47.Qg1 Qf3 48.Qg2 Qb3?? 49.Qd2+/- g5 50.Qd6 (50.Qd6 Kh5 51.Kg2 Qc2 52.Kg1 Qc1 53.Kf2 Qc2 54.Ke3 Qb3 55.Kd4 Qb2 56.Kc4 Qc2 57.Kb5 Qb3 58.Kc6 Qc3 59.Kb7+–) 1–0. slihuatamanio – pakintai, kurnik, 2012.

5.c4 a6 6.Nc3+=.

5.c4 c6 6.Qc2 (6.e3 a6=) 6...cb5 7.cb5 a6 8.a4 (8.e4 d5 9.e5 Bf5=) 8...ab5 9.ab5 Ra1 10.Ba1 d6 11.e3 Bf5 12.Bd3 Bg4 13.Be2 Nbd7 14.0-0 Qa8 15.Nc3 Rc8 16.Nd4 Bf5?? (better is 16...Be2 17.Nde2 d5=) 17.Nf5+– gf5 18.Qf5 Ne5 19.f4 Ng6 20.Qd3 Nh4 21.g3 Ng6 22.Bf3 e6 23.h4 d5+/- 24.h5 Ne7 25.g4 Qa7 26.Bb2 b6 27.Ra1 Qc7 28.Ne2 Nh5+= 29.Bg7 Ng7 30.Rc1 Qd7 31.Rc8 Qc8 32.Nd4 Qc1 33.Kf2 Qc4? 34.Qc4+– dc4 35.Nc6 Nd5? 36.Ne5?? c3+/- 37.dc3 Nc3 38.Bc6 Kf8 39.Nd7+– Ke7 40.Nb6 Ne8 41.Nc8 Kd8 42.Be8 Ke8 43.b6 Kd8 44.Nd6 f6 45.b7 Kc7 46.Ne8 Kb7 47.Nf6 Kc7 48.Nh7 Kd6 49.g5 Ke7 50.g6 Nd5 51.Kf3 Nc7 52.e4 Ne8 53.f5 ef5 54.ef5 Ng7 55.Kf4 Ke8 56.f6 Nh5 57.Kg5 Nf6 58.Kf6 (58.Kf6 Kd8 59.g7 Kd7 60.g8Q Kc6 61.Qc4 Kb6 62.Ng5 Ka5 63.Ne6 Kb6 64.Qc5 Kb7 65.Qb5 Kc8 66.Qc6 Kb8 67.Qb6 Kc8 68.Qc7#) 1–0. popovicigelu – paali, kurnik, 2011.

5.e3 a5 6.a4 c5 7.Be2 b6 8.0-0 Bb7 9.d3 d5 10.c4 e6 11.Qc2 Nbd7 12.Nbd2 Rc8 13.Rac1 Qe7 14.Qb1 Rfd8 15.Qa1 h6 16.Rfd1 Kh7 17.Bf1 Kg8 18.Be2 Kh7 19.Ne5 Ne5 20.Be5 Ne8 21.Bg7 Ng7 22.Bf3 dc4 23.Bb7 Qb7 24.Nc4 Rd5 25.Ne5 Rcd8 26.Nc6 R8d6 27.d4 cd4 28.Rd4 Rd4 29.Nd4 Qd7 30.h3 Nf5 31.Nf3 Qe7 32.Qb2 g5 33.Rc8 Rd8 34.Rc1 f6 35.Rc6 h5 36.Qb3 Rd6 37.Rd6 Qd6 38.Qc3 Kg6 39.Qc2 g4 40.Nh4 Kg5 41.Nf5 ef5 42.hg4 hg4 43.Qc8 Qd1 44.Kh2 Qa4 45.Qg8 Kh6 46.Qf8 Kg6 47.Qg8 Kh6 48.Qf8 Kg6 49.Qg8 Kh6 ½–½. mila77 (1820) – gslabek (1850), kurnik, 2012.

5.e3 b6 6.Be2 Bb7 7.0-0 c6 8.a4 c5 9.c4 d5 10.cd5 Bd5 11.d4 cd4 12.Nd4 Nbd7 13.Nc3 Nc5 14.Nd5 Qd5 15.Bf3 Nfe4 16.Qe2 Qg5 17.Rac1 Rad8 18.Rfd1 Be5 19.Nc6 Bb8 20.Nd8 1–0. mila77 (1775) – kubanosik (1655), kurnik, 2012.

5.e3 c6 6.a4 d6 (6...c5 7.Be2=) 7.Be2 cb5 (7...a6 8.0-0=) 8.ab5 Nbd7 (8...e5 9.0-0+=) 9.0-0 Nc5 (9...a6 10.d4=) 10.d4+= Ne6 (10...Nce4 11.Nbd2+=) 11.Nbd2 (11.c4 d5+=) 11...Bd7 12.c4 (12.Ra3 d5+=) 12...a6 13.d5 (13.Qb3 Qb6+=) 13...Nc5= 14.ba6 (14.Nb3 ab5 15.Nc5 Ra1 16.Qa1 dc5 17.cb5 Bf5+=) 14...Ra6 (14...ba6 15.Bd4=) 15.Nb3 (15.e4 Nfe4 16.Bg7 Kg7 17.Ne4 Ne4 18.Ra6 ba6 19.Qa1 Kg8 20.Qa6 Nc5=) 15...Ra1 16.Na1 (16.Ba1? Ba4 17.Nfd2 Nb3 18.Nb3 Qb6–+) 16...Qc7 17.Nc2 Ra8 18.Qb1 (18.Ncd4 Nfe4=) 18...Qa5 (18...e5 19.de6 fe6 20.Ncd4+=) 19.Bd4= b6 (19...Bf5 20.Nh4 Be4 21.f3 Bc2 22.Qc2=) 20.Qb2 Na4 21.Qb4 Qa7 22.Rb1 Rb8 23.Ra1 Ra8 24.Nd2 Ne8 25.Bg7 Kg7. Alimova,Ekaterina – Suslova,Alena, RUS–ch U12 Girls, 2004.

5.e3 Ne8 6.d3 Bb2 0–1. kubak – zigmanto, kurnik, 2012.

5.e3 a6

6.a4 ab5 7.ab5 Ra1 8.Ba1 Ne4 9.Bg7 Kg7 10.d3 Nd6 11.c4 c6 12.bc6 bc6 13.Nc3 Na6 14.Be2 Nc5 15.0-0 e6 16.d4 Ncb7 17.Qc2 Nf5 18.Bd3 h5 19.Ne4 d5 20.cd5 cd5 21.Nc5 Nbd6 22.Ne5 h4 23.Nc6 Qg5 24.Ne5 h3 25.g3 Nh6 26.Nf3 Qe7 27.e4 de4 28.Ne4 Ndf5 29.Nc5 Ng4 30.Bf5 ef5 31.Re1 Qd6 32.Qc3 Kh7 33.Ng5 Kg8 34.Nh3 Be6 35.Ne6 fe6 36.Nf4 Kf7 37.h3 Nf6 38.Qe3 Ne4 39.f3 Ng3 40.Ne6 Re8 41.Ng5 Kf6 42.Qe7 Qe7 0–1. kubak – ome777, kurnik, 2012.

6.c4 c6 7.Nc3 cb5 8.cb5 d6 9.d4 Bg4 10.h3 Bd7 11.ba6 Na6 12.Be2 Rc8 (12...Qa5 13.Qd2=) 13.0-0 Bc6 (13...Qa5 14.Qb3=) 14.Rc1 (14.Qb3 e6+=) 14...Nd5 (14...Nb4 15.Qb3 Nbd5 16.Nb5=) 15.Nb5 Qa5 (15...Nab4 16.a3 Qd7 17.Na7=) 16.Na7+= Ba4 17.Qe1 Rc1?? (better is 17...Qe1 18.Rfe1 Ra8+=) 18.Qa5+– (18.Qa5 Rc2 19.Rb1+–; 18.Bc1? Qb6–+; 18.Qc1 Nb8 19.Qc4 Nb6–+) 1–0. Bonetti,Shane – morsem, ICC, 2002.

5.e3 d5

6.d4 Nbd7 7.Be2 Re8 8.0-0 Nb6 9.a4 Rb8 10.Nbd2 Na8 11.c4 dc4 12.Bc4 Nb6 13.Bb3 Nbd5 (13...Bf5 14.Re1+/-) 14.Ne5 e6 (14...Bf5 15.Qf3 Bh6 16.Rfd1+/-) 15.Rc1 Nd7 16.Ndc4 Ne5 17.Ne5 f6 18.e4 (18.Nd3 a6+/-) 18...Nf4 (18...fe5 19.ed5 ed5 20.de5+=) 19.Nd3+/- Nd3 (19...Bh6 20.Rc2+/-) 20.Qd3 Kh8 (20...Bh6 21.Rc2+/-) 21.f4 e5 22.fe5 Re5?? 23.de5+– Qd3 24.ef6 Qb3 25.fg7 (25.fg7 Kg8 26.Rf8) 1–0. Kantor – Sliva, corr CSR–ch, 1980.

6.d4 Bg4 7.c4 Nbd7 8.cd5 Nd5 9.e4 N5f6 10.h3 Bf3 11.Qf3 Nb6 12.a4 Qd6 (better is 12...Nh5!? 13.e5 Nd5+=) 13.a5+– Nbd7 14.e5 Qb4? (better is 14...Qe6+/-) 15.Bc3+– Ne5 (15...Qb3 16.Nd2 Qc2 17.ef6 Nf6+–) 16.de5 (16.Bb4?! Nf3 17.gf3 Nd5+–) 16...Qe4 17.Be2 Qf3 18.Bf3 Nd7 19.a6 Ne5 20.Be5 Be5 21.ab7 Rab8 22.Ra7 (22.Ra7 Rfd8 23.Ke2+–) 1–0. orane (2175) – mysterytramp (1635), Live Game Caissa's Web, 2004.

6.Be2 a6 7.a4+=.

6.Be2 c5 7.0-0 Bg4 8.c4 Nbd7 9.cd5 Nd5 10.Bg7 Kg7 11.Nc3 N5f6 12.d4 cd4 13.Nd4 Be2 14.Nce2 Nc5 15.Qc2 b6 16.Nc6 Qe8 17.Ned4 e6 18.Qc3 Nce4 19.Qb2 a5 20.a4 Nc5 21.Qc3 e5 22.Nf3 Nfd7 23.Nfe5 Ne5 24.Qe5 f6 25.Qe8 Rae8 26.Rfd1 Rf7 27.Rd6 Re4 28.Nd4 Nd7 29.Ne6 Kh6 30.Nf4 g5 31.Nd5 Kg6 32.Nb6 Nc5 33.Rd4 Re6 34.Nc4 Nb3 35.Rad1 Nd4 36.Rd4 Ra7 37.g3 Re8 38.Rd6 Rc8 39.Ne5 Kf5 40.Nc6 Rac7 41.Kg2 h5 42.Na5 Rc2 43.Nc6 Ra2 44.Ne7 Ke5 45.Nc8 Rc2 46.Rc6 Rc6 47.bc6 Kd5 48.Ne7 Kd6 49.Ng8 Kc6 50.Nf6 1–0. kubak – marius53, kurnik, 2012.

6.Be2 c5 7.bc6 Nc6 8.0-0 Bf5 9.d4 Rc8 10.Na3 Nb4 11.c3 Nc6 12.Rc1 Re8 13.Qb3 Na5 14.Qa4 (14.Qb4 b6=) 14...Bd7 (14...a6 15.Qd1+=) 15.Qd1 a6 16.Ne5 (16.c4 Qb6 17.Qc2 Nc4 18.Bc4 dc4-/+) 16...b5+= 17.Nb1 Ne4 18.Nd7 Qd7 19.f3 Nd6 20.a4 (20.Na3!?-/+) 20...Nac4 21.Ba3? Ne3 22.Qd2 Nf1 23.Bf1 Nc4 24.Bc4 Rc4 25.ab5 ab5 26.Bc5 e5 27.Na3 ed4 28.Nc4 dc3 29.Qd1 bc4 30.Bd4 Bd4 31.Qd4 c2! 32.Rc2 Qa4 33.Rd2 Re1 34.Kf2 Qa1 35.Qd5 Rf1 36.Kg3-/+ Qe1 37.Kh3 Qe6 38.Qe6= fe6 39.Rc2 Re1 40.Rc4 Re2 41.Kg3 Kf7 42.Re4 Re4= 43.fe4 e5 44.Kg4 Kf6 45.h4 h5 46.Kf3 Ke6 47.Ke3 Kd6 48.Kd3 Kc5 49.Kc3 Kb5 50.Kb3 Kc5 51.Kc3 Kb5 52.Kb3 Kc5 53.Kc3 ½–½. mila77 (1915) – calinbrasov (1700), kurnik, 2011.

6.Be2 c6 7.a4 (7.Nc3 cb5 8.Bb5 a6+=) 7...cb5 (7...Nbd7 8.0-0+=) 8.ab5= a6 (8...Nbd7 9.0-0=) 9.0-0 ab5?? (better is 9...a5=) 10.Ra8+– Nc6 (10...Na6 11.Nc3 Nc7 12.Ra7+–) 11.Bb5 Nb4 12.c4 dc4 13.Bc4 Ne4 14.Qb3 Qd6 15.Bf7! Rf7 16.Rc8 Bf8 17.Ne5 Nd5 18.Ng4 Qd7 19.Nh6# 1–0. Taulien,Hans_Juergen (2350) – Orion,Martin (1835), remoteschach.de, 2002.

6.g3 c5 7.Bg2 Qa5 8.a4 Ne4 9.Bg7 Kg7 10.0-0 Bd7 11.d3 Nf6 12.Nbd2 Bg4 13.c4 d4 14.ed4 cd4 15.Qc2 Nbd7 16.Nd4 Nc5 17.N4b3 Nb3 18.Qb3 Qd2 19.Rad1 Qa5 20.Rc1 Rab8 21.d4 e6 22.c5 Bf5 23.Qb2 Be4 24.Be4 Ne4 25.d5 Kg8 26.d6 Rbc8 27.Qd4 f5 28.f3 Nf6 29.Qe5 Kf7 30.Rfe1 Rfe8 31.Rcd1 Nd7 32.Qd4 Rc5 33.Rc1 Rd5 34.Qc4 Rd6 0–1. kubak – libero81, kurnik, 2012.

5.e3 d6

6.a4 e5 7.d4 e4 8.Nfd2 d5 9.Be2 c6 10.0-0 a6 11.c4 ab5 12.cd5 cd5 13.ab5 Ra1 14.Ba1 Bd7 15.Qb3 Qa5 (15...Bg4 16.Bg4 Ng4 17.h3=) 16.Bc3+= Qb6 17.Na3 Be6 18.Rc1 Nbd7 19.Bb4 Ra8 20.h3 Nf8 21.Bc5 Qa5 22.Bb4 Qa7 23.Ra1 Qb8 24.Rc1 N6d7 25.Ndb1 Nb6 26.Bc5 Nfd7 27.Be7 Nc8 28.Bb4 Qa7 29.Bc5 Nc5+= 30.Rc5 Bf8 31.Rc7? Ba3–+ 32.Na3 Qa3 33.Qa3 Ra3 34.Rc8?? Bc8 (34...Bc8 35.g4 Rb3–+) 0–1. popovicigelu – mifta66, kurnik, 2012.

6.c4 Nbd7 7.a4 e5 8.Be2 Re8 9.0-0 e4 10.Nd4 Nc5 11.Nc3 Be6 12.Ne6 Ne6 13.d4 ed3 14.Bd3 Nc5 15.Be2 Qe7 16.Qc2 Rad8 17.Bf3 c6 18.bc6 bc6 19.Bc6 Nfd7 20.Nd5 Qe4? 21.Qe4 Ne4 22.Bg7 Kg7 23.Rfb1 Nec5 24.f3 Re6 25.e4 Ne5 26.Nc7?? Re7 27.Nd5 Re6?? 28.Nf4?? Re7?? 29.Bd5+/- g5 30.Nh5 Kg6 31.Ng3 h5 32.h4 Ne6 33.Nf5 Red7 34.hg5 Ng5? 35.f4 Ne4 36.fe5 Kf5+/- 37.ed6 Rd6 38.Rf1+– Ke5 39.Rf7 Rf6?? 40.Rf1 Rf1+/- 41.Kf1 Nf6 42.Re7 Kd6?? 43.Ra7 Nd5+/- 44.cd5 Kd5 45.Ra5 Kc4 46.Rh5 Rf8 47.Ke2 Kb4 48.Rh4 Ka5 49.g3 Rd8 50.Ke3 Rc8 51.Kd3 Rb8 52.Kc3 Rc8 53.Kb3 Rb8 54.Kc4 Rc8 55.Kd5+– Rd8 56.Kc6 Rg8 57.Rc4?? Rg3 58.Rc5 Ka4 59.Rd5 Rg6 60.Kc5 Rg4 61.Rd4 Rd4 62.Kd4 ½–½. MammaMia – PrinceMyshkin, Live Game Caissa's Web, 2004.

6.c4 Nbd7 7.Be2 c5 8.0-0 e5 9.d4 Re8 10.de5+= de5 (10...Ne4 11.Qd3 Ne5 12.Ne5 (worse is 12.Qe4 Nf3 13.Qf3 Bb2-/+) 12...Be5 13.Be5 (13.Qe4 Bb2 14.Qd5 Ba1–+) 13...Re5 14.f3+=) 11.Ne5 Ne4 (11...Ne5 12.Qd8 Rd8 13.Be5+=) 12.Nd3+/- Bb2 13.Nb2 b6 (13...Qh4 14.Qc2+/-) 14.Bf3 Bb7 15.Be4 Be4 16.Nc3 Bb7 17.Qe2 (17.Qc2 Qg5 18.e4 Nf6+/-) 17...Qg5+= 18.g3 (better is 18.f4 Qe7 19.Rad1+/-) 18...Ne5? (better is 18...Nf6+=) 19.f4+– Nf3 (19...Qg4 20.fe5 Qe2 21.Ne2 Re5 22.Nd1+–) 20.Qf3 Bf3 21.fg5 Re3 22.Rac1 Rd8 (22...Rae8 23.Nd5 Bd5 24.cd5+–) 23.Kf2 Rde8 24.Rce1 Re1 25.Re1 Re1 26.Ke1 (26.Kf3?! Rf1 27.Kg2 Rc1+–) 1–0. Bonetti,Shane – MPH, ICC, 2002.

6.c4 Nbd7 7.Be2 e5 8.d3 a6 9.ba6 ba6 10.0-0 Bb7 11.d4 e4 12.Nfd2 d5 13.c5 c6 14.Qb3 Rb8 15.Qc2 Ne8 16.Bc3 f5 17.f4 Nef6 18.h3 Bh6 19.Rf2 Kf7 20.Nf1 Rg8 21.Nbd2 Nf8 22.Rb1 Qc7 23.Qb3 N8d7 24.a4 a5 25.Qc2 Ke6 26.Nb3 Ra8 27.Qd2 Ba6 28.Ba6 Ra6 29.Ba5 Qa7 30.Qc3 Rb8 31.Bb6 Nb6 32.cb6 Rab6 33.Nbd2 Rb1 34.Nb1 Rb1 35.Qc6 Kf7 36.Rc2 Rb6 37.Qc7 Qc7 38.Rc7 Ke6 39.Ra7 Nd7 40.a5 Rb8 41.Nd2 Bf8 42.Nb3 Bd6 43.Kf2 Rb3 44.Ra8 Ra3 45.a6 Nb6 0–1. kubak – chybakamil, kurnik, 2012.

6.c4 e5 7.Be2 Be6 8.d3 (8.d4 ed4 9.Bd4 a6=) 8...Nbd7 9.e4 (9.Ng5 a6=) 9...Nc5 (9...Nh5 10.Nc3+=) 10.Nc3 (10.0-0 Nh5+=) 10...Qe8 (10...a6 11.0-0+=) 11.Na4 (11.0-0 a6=) 11...Ncd7 (11...Na4 12.Qa4 a6 13.0-0+=) 12.Ng5 h6 13.Ne6 Qe6 14.0-0 h5 (14...a6 15.Qc2=) 15.h3 (15.Qc2 c6+=) 15...Nh7 (better is 15...a6=) 16.Bh5?? (better is 16.Nc3+=) 16...gh5–+ 17.Qh5 Qg6 18.Qe2 Ng5 19.Kh1 Ne6 20.Nc3 f5 21.Nd5 Rae8 22.ef5 Qf5 23.g4 Qg6 24.Bc1? c6 25.Ne3 Nd4 26.Qd2 e4 27.de4 Qe4 28.Ng2 Nf3 29.Qg5 Ng5 30.Bg5 Ba1 31.Kg1 Bf6 32.Be3 Bd4 33.Bg5 Ne5 34.Kh2 Nf3 35.Kg3 Ng5 36.Nf4 Qf3 37.Kh4 Bf6 38.Nh5 Qh3# 0–1. FrutiniMalini – Bennyhill, Caissa's Web, 2004.

6.d4 Bd7 7.Be2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Qe8 11.c4 d5 12.Nc3 Nh5 13.0-0 dc4 14.Bc4 Bg4 15.h3 Bd7 16.Bb2 Qc8 17.Qb3 c6 18.Rc1 cb5 19.Nb5 Nc6 20.Na7 Qb8 21.Nb5 e6 22.Ba3 Rc8 23.Bd6 Qa8 24.Qb2 Na5 25.Be2 Rc1 26.Qc1 Qa6 27.Nc3 Qd6 28.Qb2 Qc7 29.Ne4 Nc6 30.Nc5 Bf8 31.Qb7 Qb7 32.Nb7 Bc8 33.Nc5 Bc5 34.dc5 Kg7 35.Bb5 Bb7 36.Nd2 Nf6 37.f3 Nd5 38.e4 Nc3 39.Bc4 Kf6 40.Nb3 Ke5 41.Kf2 Nd4 42.g3 Nb3 43.Bb3 Kd4 44.Ba4 Kc5 45.Be8 f5 46.Ke3 fe4 47.fe4 Ne4 48.Bf7 Ng3 49.Be6 Nf5 50.Kf4 Nd4 51.Bg8 h5 52.Kg5 Be4 53.h4 1–0. mihai740609 – kanje84, kurnik, 2012.

6.Be2 e5 7.0-0 Bd7 8.c4 Qe8 9.d3 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Bg4 13.Nbd2 e4 (13...Nbd7!?=) 14.de4+/- Ne4 15.Bg7 Kg7 16.Qc2 (16.b6 cb6 17.Ne4 Qe4+/-) 16...Nd2 17.Qd2 Nd7 18.h3 Bf3 19.Bf3 (19.gf3?! Qe6=) 19...Nc5 20.b6 Qe7 21.bc7 Qc7 22.Rd1 Rd8 23.Bd5 f6 24.Qd4 Qe7 25.Rb1 Qe5 26.Qe5 fe5 27.Bb7 Rb8 28.Be4! Rb1 29.Bb1 Kf6 30.Kf1 e4 31.Ke2 Ke5 32.Bc2 Nb7 33.f4+– ef3 34.gf3 Na5 35.f4 Kf6 36.Kd3 g5? 37.Kd4 gf4 38.ef4 Ke6? 39.Bh7 Nb3 40.Kd3 Nc5 41.Kd4 Nb3 42.Ke3 Na5 43.Bd3 Kf6 44.h4 Nc6 45.h5 Ne7 46.h6 Nc6 47.h7 Kg7 48.Be4 Ne7 49.Kd4 Nc8 50.Kd5 Nb6 51.Kd4 Nc8 52.Bf5 Ne7 53.Bc2 Nc8 54.Bd3 Nb6 55.Bb1 Nc8 56.c5 dc5 57.Kc5 Ne7 58.Kd6 Nc8 59.Ke6 Na7 60.Ke7 Nc6 61.Ke6 Nd4?? 62.Ke5 Nf3? 63.Kf5 Nh4 64.Kg5 Nf3? 65.Kg4 Nd4 66.Bd3 Nc6 67.Kf3 Ne7 68.Ke3 Nd5= 69.Kf3 Nf4 70.Kf4 Kh8 71.Kg5 Kg7 72.Kh5 Kh8 73.Kh4 Kg7 0–1. mila77 (1730) – potforo (1650), kurnik, 2012.

6.Be2 e5 7.0-0 Nbd7 8.c4 a5 9.Qc2 Nc5 10.a4 Bg4 11.d4 ed4 12.Nd4 Bd7 13.Bf3 Rb8 14.b6 (better is 14.Nc3!?+=) 14...c6+= 15.Nb3 Qb6 16.N1d2 Bf5 17.e4 Nfe4 18.Bg7 Kg7 19.Nc5 (better is 19.Be4!? Ne4 20.Ne4 Be4 21.Qc3 f6 22.Na5-/+) 19...Nc5–+ 20.Qc3 Kg8 21.Rab1? Qc7 22.Nb3? Na4 23.Qa5 Qa5 24.Na5 Bb1 25.Rb1 b6 26.Nc6 Rbc8 27.Ne7 Kg7 28.Nc8 Rc8 29.Bd5 Rb8 30.Rb5 Nc5 31.f3 Nd7 32.Kf2 Rc8 33.Rb4 Rc5 34.Ke3 f5 35.h3 h6 36.f4 Kf6 37.g3 g5 38.Kf3 Rc7 39.fg5 hg5 40.h4 Ne5 41.Ke3 Ng4 42.Kd4+= gh4 43.gh4 f4 44.Bf3 Ne5 45.Ke4 Rc4 46.Kd5?? Rb4–+ 47.Kd6 Nf3 (47...Nf3 48.h5 Ne5–+) 0–1. MammaMia – alaric, Live Game Caissa's Web, 2004.

6.Be2 e5 7.0-0 Nbd7 8.d3 Re8 9.c4 Nc5 10.a4 Bg4 11.Nfd2 (11.d4 ed4 12.Bd4 a6=) 11...Be2 (11...Nd3!? 12.Bc3 Be2 13.Qe2 Nc5-/+) 12.Qe2= c6 13.Nc3 Nfd7 14.Rab1 (14.a5 a6=) 14...Qe7 15.Nf3 Rf8 (15...f5 16.Rfd1=) 16.Na2 (16.a5!?+=) 16...f5 17.Nb4 Na4 18.Ba1 (18.bc6!? bc6 19.Nc6+=) 18...c5 19.Nd5 Qd8 20.Nd2 Nab6 21.Nb3 Nd5-/+ 22.cd5 Nb6 23.Na5 Qd7 24.e4 fe4 25.de4 Rf7 26.Nc4 Nc4 27.Qc4 b6 28.Bc3 Raf8 29.Bd2 Qg4 30.Be3 h5 31.f3 Qh4 32.g3 Qh3-/+ 33.Qe2 Kh7 34.Qg2 Qg2 35.Kg2 Bh6 36.f4 ef4–+ 37.Bf4 Bf4 38.Rf4 Rf4 39.gf4 Rf4 40.Ra1 Rf7 41.Ra4 g5 42.h3 Kg6 43.Kg3 Kf6 44.Ra3 Ke5 45.Re3 Kd4 46.Re1 Ke5 47.h4?? g4–+ 48.Rd1 Rf3 49.Kg2 Rh3 50.Re1 Rh4 51.Ra1 Ke4 52.Ra7 Kd5 53.Ra6 c4 54.Rb6 Kc5 55.Rc6 Kb5 56.Rd6 Rh3 57.Rd8 c3 58.Rb8 Ka4 59.Rc8 Kb3 60.Rc5 c2 (60...c2 61.Rc8 Rc3 62.Rb8 Kc4 63.Rc8 Kd4 64.Rd8 Ke3 65.Re8 Kf4–+) 0–1. stoker – alaric, Live Game Caissa's Web, 2004.

4.Qc1 0-0

5.c4 d6 6.d4 Nbd7 7.e3 b6 8.a3 Bb7 9.Nbd2 c5 10.d5 e6 11.e4 e5 12.Be2 Nh5 13.g3 Re8 14.b5 Nf8 15.a4 Bc8 16.h3 f5 17.ef5 gf5 18.Ra3 Nf6 19.Bc3 Ng6 20.a5 e4 21.Nh2 Bd7 22.ab6 ab6 23.Ra8 Qa8 24.Qb2 Ne5 25.Be5 Re5 26.0-0 e3 27.f4 Re8 28.Ndf3 Ne4 29.Qc2 Ng3 30.Rd1 Qa3 31.Rd3 Qb4 32.Rb3 Ne2 33.Kg2 Qa4 34.Rb2 Nf4 35.Kg3 Nh5 36.Kh4 Qc2 37.Rc2 Nf6 38.Re2 Re4 39.Kg3 Nh5 40.Kg2 Nf4 41.Kf1 Ne2 42.Ke2 f4 43.Ng5 Rc4 44.Nhf3 Bf5 45.Ne6 Rc2 46.Ke1 Be5 47.Ne5 de5 48.Nc7 f3 49.d6 Rc1 0–1. Adamkosh (1970) – UnderSteiniz (2075), lichess.org, 2020.

5.e3 b6 6.Be2 Bb7 7.0-0 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 d6 11.Nc3 c5 12.bc5 dc5 13.Nb5 Bc6 14.d4 Qd7 15.c4 e6 16.Ne5 Qe8 17.Nc6 Qc6 18.Rd1 Nbd7 19.Bf3 Qc8 20.Nd6 Qb8 21.dc5 Nc5 22.Be5 Nfd7 23.Bg3 Qa7 24.Nb5 Qa2 25.Bd6 Rd8 26.Bc5 bc5 27.Bc6 Bf6 28.Rd7 Rd7 29.Bd7 Bb2 30.Qd1 Qc4 31.Nd6 Qa6 32.Ne4 c4 33.Qa4 Qb7 34.Bc6 Qc7 35.Qc4 Be5 36.f4 Bg7 37.Bb5 Qa7 38.Qc8 Bf8 39.Nf6 Kg7 40.Ne8 Kh6 41.Qc3 Qb8 42.Qc5 Bc5 43.Bd7 Qf4 44.h3 Be3 45.Kh1 Qf1 46.Kh2 Bf4 47.g3 Qf2 48.Kh1 Bg3 0–1. Adamkosh (2055) – akssuu01 (1910), lichess.org, 2020.

5.e3 d6 6.c4 c5 7.a3 Bf5 8.d4 e5 9.de5 cb4 10.ef6 Bf6 11.ab4 Nc6 12.b5 Nb4 13.Na3 Bd3 14.Qd2 Bf1 15.Kf1 Bb2 16.Qb2 a5 17.Nc2 d5 18.Nb4 ab4 19.Ra8 Qa8 20.cd5 Qa4 21.Qe2 b3 22.g3 Qa1 23.Kg2 b2 24.Qd1 Ra8 25.Qb1 Qa3 26.Nd4 Rc8 27.Ne2 Qb3 28.Rd1 Qb5 29.Nd4 Qd5 30.f3 Rc3 31.Qb2 Re3 32.Qf2 Ra3 33.Rd2 b5 34.Nc2 Rd3 35.Rd3 Qd3 36.Kh3 Qd6 37.Qe3 b4 38.g4 Kg7 39.Qb3 Qc5 0–1. Adamkosh (1760) – Dupa69 (2070), lichess.org, 2019.

5.e3 d6 6.c4 e5 7.Be2 e4 8.Nd4 c5 9.bc5 dc5 10.Nb5 a6 11.N5c3 Nc6 12.a3 Ne5 13.Qc2 Nd3 14.Bd3 ed3 15.Qb3 Ng4 16.Ne4 Bb2 17.Qb2 Bf5 18.Ng3 b5 19.cb5 ab5 20.Nc3 b4 21.ab4 Ra1 22.Qa1 cb4 23.Nb5 Qd5 24.Nf5 gf5 25.Nd4 Qg2 26.Rf1 Nh2 0–1. Adamkosh (1920) – Fans_kartubi (2045), lichess.org, 2019.

5.e3 e6

6.c4 b6 7.a3 Bb7 8.Nc3 Bf3 9.gf3 d5 10.Be2 Nbd7 11.Qc2 Ne5 12.cd5 Nd5 13.f4 Nd7 14.Nd5 ed5 15.Bg7 Kg7 16.Rc1 c5 17.h4 c4 18.h5 Nf6 19.h6 Kh8 20.Qc3 Kg8 21.Bf3 Re8 22.Ke2 Qe7 23.Bd5 b5 24.Ba8 Ra8 25.Rcg1 Rd8 26.Rg5 Rd3 27.Qe5 Qe5 28.Re5 Ra3 29.Rb5 Kf8 30.Rc5 Rb3 31.Rc4 Ke7 32.Ra1 Nd5 33.Ra7 Kf6 34.Rc6 Kf5 35.Rf7 Kg4 36.Rh7 Nb4 37.Rg6 Kf5 38.Rg5 Kf6 39.Rb7 1–0. Adamkosh (1970) – yousef_amro (1875), lichess.org, 2020.

6.Be2 Ne4 7.Bg7 Kg7 8.Qb2 Qf6 9.d4 c5 10.Bd3 d5 11.Be4 de4 12.Ne5 Nc6 13.Nc6 bc6 14.bc5 Ba6 15.Nd2 Rab8 16.Qc3 Rb7 17.Ne4 Qe7 18.Nd6 Rbb8 19.d5 f6 20.dc6 e5 21.Qa5 Bc8 22.0-0 a6 23.Nc8 Rfc8 24.Qa6 Qc5 25.Rad1 Rc6 26.Rd7 Kh6 27.Qa7 Rh8 28.Qc5 Rc5 29.Rc1 Ra8 30.Rd6 f5 31.g3 e4 32.Re6 Ra2 33.g4 Kg5 34.gf5 Kf5 35.Re7 h5 36.Rd1 Rac2 37.Kg2 Rc1 38.Rd6 Kg5 39.h4 Kh6 40.Ree6 Rc7 41.Rg6 Kh7 42.Rh6 Kg7 43.Rhg6 Kf7 44.Rgf6 Ke7 45.Rfe6 Kf7 46.Rf6 Ke8 47.Rfe6 Re7 48.Re7 Ke7 49.Rd4 Rc6 50.Re4 Kf6 51.Rf4 Kg7 52.Kg3 Rg6 53.Kf3 Rg1 54.e4 Kg6 55.Rf5 Re1 56.Kf4 Rf1 57.Rg5 Kh6 58.f3 Rh1 59.e5 Rh4 60.Kf5 Rc4 0–1. Adamkosh (1960) – mehnavia (2005), lichess.org, 2020.

4.Nc3 0-0

5.Rb1 d6 6.e3 e5 7.d3 Qe7 8.Be2 Re8 9.0-0 Nbd7 10.e4 c6 (10...a5 11.b5+=) 11.Bc1 Nf8 12.a4 Ne6 13.Re1 (13.b5 Bd7+=) 13...Nd4 (13...d5 14.a5-/+) 14.Nd4 (14.h3!?=) 14...ed4-/+ 15.Na2 d5 16.ed5 (16.Bb2 de4 17.Bd4 Rd8-/+) 16...Nd5 (16...cd5?! 17.Bb2=) 17.Bf3?? (17.Bd2 Qd6-/+) 17...Be6 (17...Qe1 18.Qe1 Re1) 18.Bd2-/+ Qd6 19.Nc1 Bf5 (19...Bd7 20.Ne2-/+) 20.Na2 (20.Ne2+=) 20...Be6 (20...Re1 21.Qe1 Be5 22.g3-/+) 21.Nc1-/+ Bf5 22.Nb3 ½–½. Ivanets,Vladimir (1660) – Davidenko,Evgeny (1880), Fide Open, 2013. (=1.Nf3 g6 2.b4 Bg7 3.Nc3 Nf6 4.Bb2 0-0)

5.b5 e6 6.e3 d5 7.Be2 Nbd7 8.0-0 c6 9.a4 cb5 10.ab5 b6 11.Ba3 Re8 12.Bb2 Bb7 13.Nd4 Nc5 14.Ba3 Nfe4 15.Ne4 Ne4 16.c3 Nc5 17.Bc5 bc5 18.Nb3 c4 19.Nd4 Bd4 20.Qa4 Bc8 21.cd4 Bd7 22.Rab1 Qb6 23.Qb4 Reb8 24.Qc5 Rb7 25.Qb6 Rb6 26.d3 cd3 27.Bd3 Rab8 28.Rfc1 a6 29.Rc7 Bb5 30.Bb5 Rb5 31.Rf1 Ra8 32.g3 a5 33.Ra1 a4 34.Ra3 Rb3 35.Rc3 Ra3 36.Ra3 Kg7 37.Kf1 Kf6 38.Ke2 e5 39.de5 Ke5 40.f3 f5 41.Kd3 g5 42.f4 gf4 43.gf4 Ke6 44.Kd4 h5 45.h4 Ra5 46.Kc3 Rc5 47.Kb4 Rc4 48.Kb5 Kd6 49.Ra4 Ra4 50.Ka4 Kc5 51.Kb3 d4 52.Kc2 de3 53.Kd3 e2 54.Ke2 Kd4 55.Kf3 Kd3 56.Kf2 Ke4 57.Kg3 Ke3 58.Kg2 Kf4 59.Kh3 Kf3 60.Kh2 Kg4 61.Kg2 Kh4 62.Kf3 Kg5 63.Kg3 h4 64.Kh3 f4 65.Kg2 Kg4 66.Kg1 Kf3 67.Kh2 Ke2 68.Kg2 f3 69.Kh3 f2 70.Kh4 f1Q 71.Kg4 Ke3 72.Kg5 Ke4 73.Kg4 Qf4 74.Kh5 Qg3 75.Kh6 Kf5 76.Kh7 Kf6 77.Kh8 Qg7 0–1. kubak – barbara321, kurnik, 2012.

5.d3 a5 6.b5 c6 7.a4 Nd5 8.Qd2 d6 9.bc6 Nc6 10.e4 Ndb4 11.Rb1 Bg4 12.Be2 Rc8 13.Nd5 Nd5 14.Bg7 Kg7 15.ed5 Nb4 16.Ng5 Be2 17.Qe2 Rc2 18.Qg4 Nd3 19.Kf1 Rf2 20.Kg1 Rf4 21.Qh3 h6 22.Qd3 hg5 23.Rf1 Rf1 24.Kf1 Qc8 25.Qd4 Kg8 26.Qe3 (time, 1–0). guest1224 – guest1196, ICS blitz, 2000.

5.d4 d6 6.e4 c6 (6...c5 7.bc5 dc5 8.Be2+=) 7.h3 (7.Bd3 c5 8.bc5 dc5=) 7...Bd7 (7...Qb6 8.a3+=) 8.Be2 Na6 (8...a5 9.ba5 Qa5 10.0-0=) 9.Ba6 (9.a3!?=) 9...ba6+= 10.0-0 Rb8 11.Re1 a5 12.Na4 (12.a3 Qc7+=) 12...Rb4 (12...ab4 13.e5 Nd5 14.a3–+) 13.c3-/+ Rb8 14.Rb1 (14.Bc1 Be6-/+) 14...c5! 15.dc5 (better is 15.e5 de5 16.Ne5 cd4 17.Nd7 Qd7 18.cd4-/+) 15...Ba4?? (better is 15...Qe8 16.Ba3 Rb1 (16...Ba4?! 17.Rb8 Bd1 18.Re8 Re8 19.Rd1 Ne4 20.cd6 ed6 21.c4-/+) 17.Qb1 Ba4 18.cd6 e5–+) 16.Qa4= dc5 17.c4 (better is 17.e5 Nd7 18.Red1=) 17...Qc7?? (17...Ne4 18.Rbd1 Nd6 19.Ba3-/+) 18.Bc3?? (better is 18.Be5 Qd7 19.Qd7 Nd7 20.Bb8 Nb8 21.Rb7+–) 18...Rb1-/+ 19.Rb1 Rb8 (19...Rb8 20.Re1 Qb7=) 0–1. pillsbury (1995) – fersbery (2060), net–chess.com, 2007.

5.e3 d6 6.Bc4 (6.h3 Nc6=) 6...e5 (6...d5 7.Bd3+=) 7.e4 (7.0-0 d5 8.Be2 Qe7=) 7...Nc6+= 8.a3 Nd4 (8...a5+=) 9.d3 (better is 9.0-0!?+=) 9...Bg4-/+ 10.Nb5 Nf3 11.gf3 Bh3 (11...Bh5 12.Rg1-/+) 12.Rg1 (12.f4 Nh5 13.fe5 Be5 14.Be5 de5–+) 12...Nh5 (12...c6 13.Nc3–+) 13.Bc1 (13.Qd2 Nf4–+) 13...Nf4 (better is 13...c6 14.Nc3 Nf4–+) 14.Be3? (better is 14.Rg3–+) 14...c6 15.Nc3 d5 16.Ba2 (16.Bb3 Ng2 17.Rg2 Bg2 18.ed5 e4–+) 16...Ng2 17.Kd2 d4 18.Ne2 de3 19.fe3 Qb6 0–1. Iglesias,Ivan – Garcia,Carlos Alberto, CAI Olivar, 2002.

5.g3 a6 6.Bg2+=.

5.g3 c6 6.Bg2= d5 7.0-0 Bf5 (7...a5 8.b5=) 8.d3 (8.Nd4 Bd7=) 8...Nbd7 (8...a5 9.a3=) 9.Re1 (9.Nd4 e6=) 9...Nb6 10.e4 (10.Nd4!?=) 10...de4-/+ 11.de4 (11.Ne4 Ne4 12.Bg7 Nf2+=) 11...Qd1 (11...Ne4 12.Ne5 Be5 13.Be4-/+) 12.Rad1 Bg4 (better is 12...Ne4!? 13.Nd4 Nc4-/+) 13.e5 Nfd5 14.Nd5 cd5 15.h3 Bf3 (15...Bd7 16.Nd4=) 16.Bf3 e6 17.Bg2 (17.Bd4 Rfc8 18.c3 Nc4=) 17...Nc4 (17...Rfc8 18.Re2+=) 18.Bc3 (18.Bd4!?=) 18...Rfc8 19.Ba1 (19.Rc1!?-/+) 19...Na3–+ 20.c4 Nc4 (better is 20...Rc4 21.Bf1 Rb4–+) 21.Rd4? Ne5–+ 22.Rdd1 Nc4 23.Bg7 Kg7 24.Rd4 Rc6 25.b5 Rc5 26.a4 a6 27.Bf1 ab5 28.ab5 Rb5 29.Bc4 dc4 30.Rc4 Rb2 31.Rc7 b5 32.Re6 Raa2 33.Rb6 Rf2 34.Rb5 Rg2 35.Kf1 Rg3 36.Rb1 Rh3 37.Kg1 h5 0–1. gbsrao (2165) – pvhameren (2215), net–chess.com, 2007.

5.e3 d5

6.Bd3+=.

6.Be2 a6 7.a3 Qd6 8.0-0 Nc6 9.d4 Re8 10.h3 e5 11.de5 Ne5 12.Ne5 Qe5 13.Rb1 Qd6 14.Bf3 c6 15.e4 Be6 (15...d4 16.Re1=) 16.e5 (16.ed5 cd5 17.Nd5 Nd5 18.Bg7 Kg7 19.Qd4 Kf8+=) 16...Qe5 17.Nd5 Qf5 18.Nc7 Rad8 19.Qc1 (19.Ne8 Rd1 20.Nf6 Bf6 21.Rfd1 Bb2 22.Rb2 Qf6=) 19...Rf8 (19...Re7 20.Re1 Rc7 21.Re5+/-) 20.Ne6 fe6 21.c4 e5 22.Qe3 e4 23.Be2 Ne8 24.Bg7 Ng7 25.Rbd1 Qe6 26.c5 Nf5 27.Qc3 Ne7 28.Rd8 Rd8 29.Bc4 Nd5 30.Qd4 Kf7 31.f3 e3 32.Qh4 Re8 33.Qh7 Kf8 34.Qh6 Kf7 35.Re1 Qf6 36.Qh7 Kf8 37.Re2 Re7 38.Qh6+/- Ke8 39.g3 Kd7 40.Kg2 Qd4 41.Bd5 cd5 42.Qg6+/- Qd1 43.Qd6?? Ke8 44.Qb8= Kf7 45.Qf4 Ke8 46.Rb2 e2 47.Qb8 Kf7 48.Qf4 Ke8 49.Qb8 Kf7 50.Qf4 Ke8 ½–½. gtate (2780) – paulochess (2695), net–chess.com, 2009.

4.c4 a5

5.a3 b6 6.e3 Bb7 7.Be2 0-0 (7...d6 8.b5=) 8.0-0 d6 9.d3 Nbd7 10.Nbd2 Ra7 (10...Nh5 11.Bg7 Kg7 12.Ng5=) 11.Nd4 (11.Qc2+=) 11...Qa8 (11...Ne8 12.Qb1=) 12.Bf3 (better is 12.Nb5!? Bg2 13.Re1+/-) 12...Ne5 13.Bb7 Qb7 14.N2f3 (14.Qb3 Nc6=) 14...ab4 15.Ne5 de5 16.Nb5 ba3 17.Be5 Ra5 18.Ra3 (18.Bc7? Nd5 19.Qf3 Ba1 20.Ra1 a2–+) 18...Ra3 19.Na3 Ra8 20.Nb5 Ne8 21.Bg7 Ng7 22.Qf3 (22.Qb3 h6=) 22...Qf3+= 23.gf3 Ne6 24.Rc1 c6 25.Nc3 Nc5 26.d4 Nd3 27.Rb1 Ra3 28.Ne4 Ra4 29.Rb6 Rc4 30.Kg2 Rc2 31.Rb3 Ne1 32.Kg3+= f5 33.Nc5 e5 34.Ne6 ed4 35.Nd4 Rc4 36.Rb8 Kf7 37.Rb7 Kf8 38.Rb6 Nd3 39.Rc6 Rc6 40.Nc6 g5 ½–½. Grundherr,Martin (2340) – Reich,Thomas (2395), AUT–chT2W, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

5.a3 d5 6.cd5 0-0 7.g3 (7.Bf6 Bf6 8.Nc3 e6+=) 7...ab4-/+ 8.ab4 Ra1 9.Ba1 Qd5 10.Bg2 Qc4 11.Bc3 Nc6 (11...Nd5 12.Na3 Nc3 13.Nc4 Nd1 14.Kd1-/+) 12.Na3+= Qa2 13.b5 Qa3 14.bc6 b5 15.0-0 Qc5 (15...b4 16.Be5 Nd5 17.Qa1 Qa1 18.Ra1=) 16.Qb3= Qh5 (16...Be6!? 17.Qb2 Ra8=) 17.Qa3+/- Bh3 18.Be5 Bg2 19.Kg2 Qg4? (better is 19...Nd5!? 20.Bg7 Kg7+/-) 20.Qe7+– Nd5 21.Qd7 Qc4? 22.d3+– Qc5 23.Bg7 Kg7 24.e4 Nb4 25.Qc7 Nd3 26.Qd7 Qc2 27.c7 Kg8 28.Nd4 Qc4 29.Rd1 Ne5 30.Qd8 b4 31.Nf3 Qe4 32.Qf8 Kf8= 33.c8Q Kg7 34.Qd8 Qf3 35.Kg1 Qh5 36.Qd4+/- f6 37.Qa7 Kh6 38.Qe3 g5 39.Rd6 Ng4 40.Qf3+– Qh2 41.Kf1 Qh5 42.Kg1 Qh2 43.Kf1 Qh5 44.Kg1?? Qh2= ½–½. Laurent,Ju (2300) – Dourerassou,J (2460), Paris FRA, 2012.

5.a3 d6 6.Qa4 Bd7 7.Qb3=.

5.b5 c5 6.g3 0-0 7.Bg2 b6 (7...d5 8.cd5 Nbd7 9.Qc2 Nd5 10.Bg7 Kg7 11.0-0+=) 8.d4 (8.0-0 Bb7+=) 8...cd4 (8...d6 9.dc5 dc5 10.0-0+=) 9.Bd4 (better is 9.Nd4!? Ra7 10.0-0+=) 9...Bb7= 10.0-0 d6 11.Nc3 (11.Nbd2 Nbd7=) 11...Nbd7 12.Nd5 (12.Qb3 Rc8=) 12...Rc8 (12...e5 13.Nf6 Bf6 14.Be3=) 13.Nd2 (13.Nf6 Nf6 14.Rc1 Bh6=) 13...Nd5+= 14.Bg7 Ne3 Exerts pressure on the backward pawn (14...Kg7 15.cd5 Rc5 16.Ne4 Rb5 17.Qd2+=) 15.fe3 Bg2 16.Kg2 (16.Bf8 Bf1 17.Qf1 Kf8+=) 16...Kg7 17.Rc1 Ne5 18.Rf4 (18.Ne4 Rc4 19.Rc4 Nc4 20.Qd4 Ne5-/+) 18...Qd7 (18...g5 19.Rd4+=) 19.Nf3 (19.Qb3 f6-/+) 19...Rc5 (19...Ng4!? 20.Qd3 e5-/+) 20.Ne5+= Re5 21.Qd4 Qc7 (21...Qb7 22.Kg1+=) 22.a4 (22.Rcf1 f6+=) 22...Qc5 (22...f6 23.Qd3+=) 23.Kf2 (23.Rc3 Rc8+=) 23...f6 24.h4 (24.Qc5 dc5 25.Rc3 g5-/+) 24...Rb8 (24...Qc7 25.Qd3-/+) 25.Qd3 (25.Qc5 Rc5 26.Rd4 Rbc8+=) 25...Rc8 Attacks the isolani on e3 (25...Re8 26.Rd4+=) 26.Rh1 (26.Rd4 d5+=) 26...d5 (26...Rg8 27.Re4+=) 27.Rc1 g5 (27...Rh5 28.Rd4+=) 28.hg5= fg5 (28...Rg5 29.Rh1 h6=) 29.Qc3 (29.Rf7 Kf7 30.Qh7 Kf6 31.Qh6 Kf7 32.Qh7 Ke8 33.Qh8 Kf7 34.Qh7=) 29...Qe3 (29...Qd6!? 30.Qd4 dc4 31.Qd6 ed6 32.Rfc4 Rf8 33.Ke1 Rc5+=) 30.Qe3= Re3 31.Rf5 Re4 (31...Kg6 32.Rd5 Re4 33.c5=) 32.Rg5 Kf6 (32...Kf7 33.Rd5 Rec4 34.Rc4 Rc4 35.Rh5=) 33.Rd5 Rcc4 (33...Rec4 34.Rh1=) 34.Rc4 (34.Rh1 e6 35.Rh6 Kg7=) 34...Rc4 35.Rh5 Kg6 (35...Ra4 36.Rh6 Ke5 37.Rb6+=) 36.Re5 Kf6 37.Rh5 Kg6 (37...Ra4 38.Rh6 Ke5 39.Rb6=) 38.Re5 Kf6 39.Rh5 Kg6 (39...Ra4 40.Rh7 Rg4 41.Kf3=) 40.Re5 ½–½. Choukri,Adel (2265) – Mosenya,Ndawana (2000), 42nd Olympiad, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

5.b5 d5 6.cd5 0-0 7.g3 (7.Bf6 ef6 8.Nc3 Nd7=) 7...Nd5 8.Bg7 Kg7 9.Bg2 c6 (9...Be6 10.Qc2=) 10.bc6 (10.Na3 Qd6 11.Qc1 Qf6=) 10...Nc6+= 11.0-0 Bf5 (11...e5 12.Nc3 Nc3 13.dc3+=) 12.Nh4 (12.Qb3 Qd6=) 12...Be6+= 13.d4 Nf6 (13...f5 14.Qd2=) 14.e3 Qd7 15.Nc3 Bh3 (15...Bc4 16.Re1=) 16.Na4 (16.Rc1 Bg2 17.Kg2 Rad8=) 16...Bg2 17.Kg2 Qd5 18.Kg1 Nd7 (18...Rad8 19.Nc3 Qc4 20.Qb3 Qb3 21.ab3=) 19.Nc3 Qd6 (19...Qc4 20.Rc1=) 20.Nb5 Qf6 21.Rb1 (21.e4 Nb4+=) 21...Rfd8 (21...Rac8 22.a3+=) 22.Qf3 (22.Nc3!?+/-) 22...Qf3 23.Nf3 e5 (23...Rac8 24.Rfc1=) 24.a3 (24.Rfd1 ed4 25.Nbd4 Nc5+/-) 24...ed4 25.Nbd4 Nd4 26.Nd4 Rab8 (26...b6 27.Rfd1+=) 27.Rfc1 Ne5 28.Rb5 Nc6 29.Nc6 bc6 30.Ra5 Rb2 31.Rac5 (worse is 31.Rc6 Rdd2+=) 31...Rdd2 32.Rf1 (worse is 32.Rc6 Rf2 33.h4 Rg2 34.Kh1 Rh2 35.Kg1 Rbg2 36.Kf1 Rg3-/+) 32...Ra2 33.Rc6 Ra3 34.Rc4 Raa2 35.Rf4 h5 (35...g5 36.Rb4=) 36.h4+= Rdb2 37.Rc1 Rc2 38.Rb1 Rab2 39.Rd1 Rd2 40.Ra1 Ra2 41.Ra2 Ra2 42.g4 hg4 43.Rg4 Kf6 44.Rf4 Kg7 45.Kg2 Ra5 46.Kg3 Rb5 47.Rg4 f5 48.Rg5 Kf6 49.f4 Rb1 50.Kg2 Rb2 51.Kh3 Rb1 ½–½. Briceno,J C Colivet (1785) – Federzoni,E (1805), Sao Bernardo do Campo Brazil, Open, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

5.g3 ab4-/+ 6.Bg2 0-0 7.0-0 c5 8.d4 Ne4 (8...d5 9.cd5 Nd5 10.Qc2=+) 9.Nbd2 (9.Qc2 f5=) 9...Nd2 (9...Nc3!? 10.Bc3 bc3-/+) 10.Qd2=+ cd4 (10...d6 11.Rfd1 b6 12.dc5 Bb2 13.Qb2 bc5 14.a3 ba3 15.Ra3 Ra3 16.Qa3=+) 11.Qb4 (11.Bd4!? Nc6 12.Bg7 Kg7 13.Rfb1=) 11...Nc6-/+ 12.Qd2 e5 13.Rfd1 Qa5 (13...d6 14.e3 de3 15.Qe3-/+) 14.e3 Qd2 15.Nd2 de3 16.fe3 d6 (16...Nb4!? 17.Be4 d6=+ (17...Ra2?! 18.Ra2 Na2 19.Bb1+=; worse 17...Na2 18.Bb1+/-)) 17.Ne4= Be6 18.Nd6 Ra7 19.a4 Rfa8? (19...Na5 20.c5+=) 20.Bc3?? (better 20.Nb7 Nb4 21.Nc5+-) 20...Ra4= 21.Ra4 (21.Nb7 Ra1 22.Ba1 Bg4=) 21...Ra4=+ Exerts pressure on the isolated pawn 22.Nb7 (better 22.c5!?=+) 22...Rc4-/+ 23.Ba1 (better 23.Bb2 Bh6 24.Bc6 Be3 25.Kg2 Rc6 26.Be5 Rc2 27.Kf3-/+) 23...e4 (better 23...f5!?-/+) 24.Nd6= Ra4 25.Bg7 Kg7 26.Ne4 Ne5 27.Ng5 Ng4 (27...Bf5 28.Rc1=+) 28.Ne6 fe6 29.Rd7 (better 29.Bh3!?=) 29...Kf6-/+ 30.Rd4? (better 30.Rd3-/+) 30...Ra1-+ 31.Bf1 Ne3 32.Rf4 Ke5 33.Rf3 Rf1 (33...Kd4 34.Rf4 Kc3 35.Rf3 Rf1 36.Rf1 Nf1 37.Kf1-+) 34.Rf1 Nf1 35.Kf1 Kd4 36.Kf2 Kd3 37.Kf3 e5 38.Kf2 e4 39.Ke1 Ke3 40.Kf1 Kd2 41.Kf2 e3 42.Kf3 e2 (42...e2 43.Kf4 e1Q 44.Kg5 Qf2 45.Kh6 Qh2 46.Kg7 Ke2 47.Kf8 Qg3 48.Kf7 h5 49.Ke6 h4 50.Kd5 Qg5 51.Kd6 h3 52.Ke6 h2 53.Kd6 h1Q 54.Kc7 Qc5 55.Kd7 Qhc6 56.Kd8 Q5d6) 0-1. Spiritchaser84 (2150) - ENERGIE73 (2005), Rated Bullet game, lichess.org, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2)

5.a3 0-0

6.e3 ab4 7.ab4 Ra1 8.Ba1 d5 9.cd5 Nd5 10.Bg7 Kg7 11.Qb3 Qd6 12.b5 Bf5 13.d3 Qb4 14.Qb4 Nb4 15.e4 Bg4 16.Ne5 Be6 17.Kd2 c6 18.Nc3 Rd8 19.Be2 cb5 20.Nb5 N8c6 21.Nc6 bc6 22.Na3 c5 23.Rc1 Ra8 24.Ra1 g5 25.Nc2 Ra1 26.Na1 Kf6 27.Bd1 Nc6 28.Ba4 Nd4 29.Nc2 Nc2 30.Bc2 Ke5 ½–½. Markowski,Tomasz – Dobrowolski,Piotr, Memorial Anderssena Wroclaw Poland.

6.e3 b6 7.Be2 Bb7 8.d4 d6 9.0-0 Nbd7 10.Nbd2 e5 11.de5 Ng4 12.Qc2 Nge5 13.Ne5 Ne5 14.f4 Nd7 15.Bg7 Kg7 16.Qc3 ½–½. Otman,Viktor – Jung,Karl Otto (2210), Moscow4, 1991.

6.g3 c6 7.Bg2 d6 8.0-0 e5 9.d3 Be6 10.Nbd2 Qc7 11.Qc2 Nbd7 12.Rfc1 Qb6 13.ba5 (13.c5 Qc7+=) 13...Ra5 14.Bc3 Ra6 15.Rcb1 Qa7 16.Ng5 Ng4 17.e3 (better is 17.Nde4!? d5 A) 18.Ne6? de4 (worse is 18...fe6 19.Bh3 de4 20.Bg4 Qf2 21.Kh1+=) 19.Bd4 ed4 20.Nf8 ed3 (worse is 20...Kf8 21.Be4 Nc5 22.Bg2-/+; worse is 20...Nf8 21.Be4 Ne6 22.Bg2-/+) 21.ed3 Bf8–+; B) 18.cd5 cd5 19.h3= (19.Ne6 fe6 20.Bf3 de4 21.Bg4 Qf2 22.Kh1 ed3 23.Qd3 Nc5+=)) 17...Ne3!-/+ 18.fe3 Qe3 19.Kh1 Qg5 20.Rb7 Nc5 21.Ne4 Ne4 22.Be4 f5 23.Bg2 d5 (better is 23...f4!? 24.gf4 Qf4-/+ (24...Rf4?! 25.Bd2=)) 24.cd5+= cd5 25.Qb2 f4?? (better is 25...d4 26.Rg7 Kg7 27.Bd4 ed4 28.Qb7 Bf7 29.Qa6 Qd2+=) 26.Rg7!+– Kg7 27.Qb7 Kh6 28.Qa6 Rf6 29.Qa5 f3 30.Bd2 fg2 31.Kg2 Rf4 32.Bf4 ef4 33.Qe1 Qg4 34.a4 d4 35.Qf2 Bd5 36.Kf1 f3 37.a5 Qf5 38.Qd4 Qh3 39.Ke1 Qg2 40.Qf2 Qh1 41.Qf1 Qh2 42.a6?? Qg3?? 43.Qf2?? Qe5–+ 44.Kd2 Qa1 45.Qh2 Kg7 46.Qc7 Kh8 47.Qb8= Kg7 48.Qc7 Kf6 49.Qf4 Ke6 50.Qe3 Qe5 51.Qb6 Kf5 52.a7 Qe2 53.Kc3 Qe5 54.Kd2 Qf4 55.Kc3 f2 56.Qc5 Qc1 (56...Qc1 57.Kd4 Qc5 58.Kc5 Ke6–+) 0–1. Mahieux,Richard (1740) – Cocat,Louis (1680), Bagnoles de l'Orne, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.a3 0-0)

5.a3 ab4 6.ab4 Ra1

7.Ba1 0-0 8.e3 c6 9.Be2 Qb6 10.Qb3 d6 11.0-0 Na6 12.b5 Nc5 13.Qc2 (13.Qb2 Bf5=) 13...Bf5 14.Qd1 cb5 15.d4 Nce4 16.cb5 Nd5 17.Nfd2 Rc8 18.Ne4 Be4 19.f3?? (19.Nd2 Bc2 20.Qe1 Ra8=) 19...Bc2 (better 19...Ne3 20.Qe1 Bb1 21.Qb1 Nf1 22.Kf1 Qa5-+) 20.Qd2=+ Ba4 Attacking the isolated pawn on b5 (20...Qa7 21.Bb2 Ne3 22.Qe3-/+) 21.Nc3 (21.Na3 e6=) 21...Nc3 (21...Qa5!? 22.Rc1 Bb5 23.Bb5 Nc3=+) 22.Bc3= Bb5 23.Rb1 Qc7 (23...Qc6 24.Rb5 Qc3 25.Qc3 Rc3 26.Kf2=+) 24.Rb5 (24.Ba5!? b6 25.Bb6 Qb6 26.Rb5=) 24...Qc3=+ 25.Qc3 Rc3 26.Rb7 Re3 27.Rb8 Bf8 28.Kf2 Rc3 29.Rb7 (29.Ke1 Rc2=+) 29...Rc8 (29...d5 30.g3-/+) 30.Rd7 Rd8?? (30...e6 31.Ke3-/+) 31.Ra7 (better 31.Rd8 e6 32.d5+-) 31...Kg7 32.Rc7 (32.f4 d5=+) 32...e6 33.Rc3 d5 34.Re3 Bd6 35.f4 (35.Rd3 Ra8 36.g3 Kf6-/+) 35...Bb8 (better 35...Bf4!? 36.Rd3 Bb8-+) 36.Rf3 (36.Kf3!?-/+) 36...Ba7 37.Rd3 Rb8 (37...f6 38.Ke1-+) 38.Kf3 (38.Ke3 g5! 39.g3 gf4 40.gf4 Rb2-/+) 38...Rb4 (38...f6 39.g4-+) 39.g3? (39.Ke3!?-/+) 39...Rd4 (39...Bd4 40.Bd1-+) 40.Re3 (better 40.Ra3 Bc5 41.Ra5-+) 40...Rf4?? (better 40...Rb4 41.Ra3 Bc5-+) 41.Kf4 (41.gf4 Be3 42.Ke3 Kf6=+) 41...Be3 (41...e5 42.Re5 Bb8 43.Bf3-/+) 42.Ke3=+ e5 43.Kf3 (43.Bf3!? d4 44.Ke4=) 43...f5-/+ Black intends e4 44.Bd3?? (better 44.Ke3-/+) 44...e4-+ 45.Be4 (45.Ke3 ed3 46.Kd3 g5-+) 45...de4 46.Ke3 Kf6 47.g4 (47.Kf4 g5 48.Ke3 Ke5-+) 47...g5 (47...Kg5 48.gf5 gf5 49.Kd4-+) 48.h3 (48.h3 Ke5 49.gf5 Kf5 50.Kd4-+). negrovich1 (2005) - igo1 (2125), Rated Bullet game, lichess.org, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2)

7.Ba1 0-0 8.g3 d5 9.cd5 Nd5 10.Bg7=+ Kg7 11.Qb3 Na6 (11...Qd6 12.b5=+) 12.b5 Nc5 13.Qb2 Kg8 (13...f6 14.d4 Na4 15.Qb3=+) 14.Bg2= Qd6 15.0-0 Rd8 (15...Bg4 16.Na3 Nb6 17.Ra1=) 16.Rc1 Nf6 17.Na3 (better 17.d4 Nce4 18.Nbd2+=) 17...Ne8 (better 17...Be6!?=) 18.Nc4+– Qf6 19.Qb4 Ne4 20.d3 N4d6 21.Ne3 e6 (21...Be6 22.Nd4+–) 22.Ng4 Qg7 23.Nge5 (23.b6 c6+–) 23...f6 24.Nc4 (24.Ng4 Qe7+–) 24...Qd7+= Attacking the isolated pawn on b5 25.b6 c6 26.Ne3 Nb5 27.h4 (27.Bh3 Ned6+=) 27...Ng7 (27...e5 28.h5=) 28.Ng4 (28.Qb3 Qe7+=) 28...Ne8 (28...Nh5 29.Bh3+=) 29.Qb2 (29.Ra1 e5 30.Bh3 Qd6 31.Qd6 Nbd6= (31...Rd6?? 32.Nh6 Kg7 33.Bc8+–)) 29...Nd4 (29...e5 30.Bh3 Qe7 31.h5=) 30.Rc4+= Nf3 31.Bf3 (worse 31.ef3 e5 32.Bf1 Kg7=+) 31...e5 32.Qb3 (32.Ra4 Qe7+=) 32...Kg7= 33.Qb2 (33.h5 Qf7 34.Qc3 gh5=) 33...Nd6 34.Rc5 (34.Rf4 Nf5 35.Nf6 Kf6 36.g4=) 34...Nf5 (34...Qe7 35.h5 Nf5 36.Ra5=+) 35.Qc1?? (35.Nf6 Kf6 36.Qe5 Kf7 37.Bd5 cd5+–) 35...h5 (35...Qe7 36.Ra5=+) 36.Ne3 (better 36.Bc6 bc6 37.Rc6+=) 36...Nd4=+ 37.Qa3 (better 37.Rc3!?=+) 37...Nf3–+ 38.ef3 Qd3 39.Rc3 Qd6 40.Qb2 (40.Qa7 Kf7–+) 40...Be6–+ 41.Rc1 (41.Qa3 Qa3 42.Ra3 Kf7–+) 41...Qd4 (41...Ra8 42.Rd1 Qc5 43.Qd2–+) 42.Qa3 Qb6 (42...Bf7!? 43.Qa7 Qb2 44.Re1–+) 43.Qe7-/+ Bf7 44.Nc4 Qd4 45.Qb7 Qd7 (45...Qc5 46.Qb6 Qb6 47.Nb6-/+) 46.Qb4 (46.Qb6-/+) 46...Bc4 (better 46...Qd5!?-/+) 47.Qc4=+ Rc8 48.f4 (48.Qc5 Rc7=+) 48...ef4 49.Qf4 Qc7 (49...c5 50.Kh2-/+) 50.Qe3 (50.Qa4 Qd6=+) 50...Qe5 (50...c5 51.Rc4=+) 51.Qa7 (51.Qd2 Qe7=) 51...Rc7 52.Qb8 c5 53.Rd1 Re7 54.Qc8 Qc7 (54...g5 55.hg5 fg5 56.Qc6=+) 55.Qa8 (55.Rd8 Qc8 56.Rc8 Re1 57.Kg2 Rc1=) 55...Qe5 56.Qa2 (56.Qc8 g5=+) 56...Qe2 (56...Qb8 57.Qd5=+) 57.Rd2 (57.Qe2!? Re2 58.Rd7 Kf8 59.Rc7=+) 57...Qe1-/+ 58.Kh2 c4 59.Qa3 (59.Qc4 Qd2 Deflection) 59...Rc7 (59...Qd2?! 60.Qe7 Kh6 61.Qf8 Kh7 62.Qf7 Kh6 63.Qf8 Kh7 64.Qf7 Kh6 65.Qf8=) 60.Qc3 Qe5 61.Qb4 (61.Rd4-/+) 61...c3 (better 61...g5!? 62.hg5 fg5-/+) 62.Rd8=+ Qc5 (better 62...f5 63.Qb8 Re7 64.Rg8 Kh7 65.Qe5 Re5=) 63.Qc5?? (better 63.Rd7! Kh8 64.Rd8 Kh7 65.Rd7 Kh8 66.Rd8 Kg7 67.Rd7 Kf8 68.Qb8 Rc8 69.Qb7 Qf2 70.Kh1 Qe1 71.Kh2 Qe2 72.Kg1 Qe3 73.Kh2=) 63...Rc5–+ 64.Rd1 Kf7 65.Kg2 (65.Rc1 c2 66.Kg2 Ke6–+) 65...Ke6 66.Kf3 (66.Rc1–+) 66...c2 67.Rc1 Kf5 68.Ke2 Kg4 69.Kf1 (69.Ke3 f5–+) 69...Kf3 70.Ke1 (70.Kg1 Rc4–+) 70…Re5 (70...Re5 71.Kd2 Re2 72.Kd3 Rf2–+) 0–1. Milans,Carlos (1980) – D Andrea,Leonardo (1920), Torneo Verano, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.a3 ab4 6.ab4 Ra1)

7.Ba1 b6 8.e3 Bb7 9.Be2 0-0 10.0-0 d5 (10...c5 11.Qb3=) 11.d4 c6 12.c5 (12.Nc3 dc4 13.Bc4 e6+=) 12...b5 (12...Ba6 13.Nc3=) 13.Bb2 Qc7 14.Nbd2 Nbd7 15.Qc2 Ra8 16.Ra1 Qb8 17.h3 Ra1 18.Ba1 Qa8 19.Qb1 Bc8 20.Ne5 (20.Bc3 Ne8+=) 20...Ne5= 21.de5 Nd7 (21...Bf5 22.Qc1 Nd7 23.g4=) 22.f4 (22.Nf3 Nb8=) 22...Qa3 23.Kf2 Nf8 24.Bg4 (24.Bd4 Ne6=) 24...Be6 (24...Bg4!? 25.hg4 Ne6=+) 25.Be6 Ne6 26.g4 (26.Nf3 Bh8=) 26...h6 (26...Nc7 27.Qb2 Qa4 28.Qb1-/+) 27.Nf3= Nd8 28.Nd4 White prepares f5 28...f6?? (28...e6 29.f5=) 29.Nf3 (29.ef6 ef6 30.Qg6 Qa1+-) 29...Kf7 (29...Nf7 30.ef6 ef6 31.Bd4+/-) 30.h4 (better 30.ef6!? ef6 31.Nh4+/-) 30...Ne6 31.f5 gf5 32.gf5 Nd8 (32...Nc7 33.e6 Kg8 34.Nd4+/-) 33.e6+/- Ne6? (better 33...Kg8+/-) 34.fe6+- Ke6 35.Nd4 Kd7 (35...Kf7 36.h5 (36.Nc6?! Qa8 37.Nd4 Qb8+-) 36...Kg8 37.Nc6+-) 36.Qf5 Kc7 (36...Ke8 37.Qg6 Kd7 38.Qg4 Ke8 39.Qg7 Qa2 40.Kg3 Qa1 41.Qg8 Kd7 42.Qe6 Ke8 43.Qc6 Kf8 44.Ne6 (44.Nb5?! Qg1 45.Kf3 Qf1 46.Kg3 Qg1 47.Kh3 Qf1 48.Kh2 Qf2 49.Kh1 Qf1 50.Kh2 Qf2 51.Kh3 Qf3 52.Kh2 Qf2=; worse 44.Qb5 Qe1 45.Kf3 Qh4+-) 44...Kf7 45.Qd5 Qe1 46.Kg4 Qe2 47.Kf5 Qh5 48.Ng5 Kg7 49.Qf7 Qf7 50.Nf7 Kf7 51.c6 e6 52.Kg4+-) 37.Ne6 (37.Qe6 Qa2 38.Kg3 Qa6 39.Qe7 Kc8 40.Qe6 Kc7 41.Qd6 Kb7 42.Qd7 Ka8 43.Nc6 f5 44.Qc7 f4 45.Kf4 Qc6 46.Qc6 Ka7 47.Qb6 Ka8 48.c6 Be5 49.Be5 d4 50.Qa5) 37...Kb7 (37...Kc8 38.Qh5 Kd7 39.Ng7+-) 38.Bd4 (better 38.Qf4 Ka8 39.Qc7+-) 38...Qb4 39.Ng7 Qd2 40.Kg3 Qe1 41.Qf2 Qh1 (41...Qc1 42.Nf5 e5 43.Nd6 Ka7 44.Qa2 Kb8 45.Qa6 Qg1 46.Kh3 Qh1 47.Kg4 Qg2 48.Kh5 Qg7 49.Qb6 Ka8 50.Qc6 Ka7 51.Qb6 Ka8 52.Qa6 Qa7 53.Qc6 Kb8 54.Qc8) 42.Nf5 Qe4 (42...e5 43.Nd6 Ka7 44.Qa2 Kb8 45.Qa6 Qg1 46.Kh3 Qf1 47.Kg4 h5 48.Kh5 Qd1 49.Kh6 Qh5 50.Kh5 ed4 51.Qb7) 43.Qf3 (43.Bf6!? h5 44.Be7 Qg4 45.Kh2 Qd1+-) 43...Qe6 44.Qf4 (44.Nh6 Qd7+-) 44...Qg8 (44...h5 45.Kf2+-) 45.Kf2 (45.Qg4 Qc8+-) 45...e5 46.Be5! fe5 47.Nd6 Ka6 48.Qf7?? (better 48.Qe5 Qd8 49.Qf4+-) 48...Qg4 (48...Qf7 49.Nf7 b4 50.Ke2+/- (50.Nh6?? b3-+)) 49.Qb7 Ka5 50.Qc6 Qh4 51.Ke2 Qg4 52.Kd3 Qg6?? (better 52...Qd1 53.Kc3 b4 54.Kb2 Qe2 55.Kb1 Qd3 56.Ka2 Qa3 57.Kb1 Qd3 58.Kb2 Qc3 59.Kb1 Qd3=) 53.Kc3 b4 (53...Qc2 54.Kc2 Kb4 55.Qb5 Ka3 56.Qb3) 54.Kb2 Qg2 55.Kb3 Qe2 (55...Qa2 56.Ka2 b3 57.Kb3 d4 58.Qb5) 56.Qb6 (56.Qa4) 1-0. carlos78 (2250) - ribarisah (2155), Rated Blitz game, lichess.org, 2015.

5.b5 0-0

6.g3 b6 7.Bg2 Bb7 8.0-0 d6 9.d3 Nbd7 10.a4 e5 11.Qc2 h6 12.Nbd2 Nc5 13.e3 Ne6 (13...e4 14.de4 Nce4 15.Nd4 Nd2 16.Bb7 Nf1 17.Rf1=) 14.d4+= Nd7 (14...ed4 15.ed4 d5 16.Ne5+=) 15.d5 (better 15.Ne5!? Bg2 16.Nd7 Bf1 17.Nf8 Bc4 18.Ng6+/- (worse 18.Qc4 Qf8 19.Rb1 Re8+=; worse 18.Nc4 Qf8 19.d5 Nc5+=)) 15...Nec5= 16.Rab1 Kh7 17.Nb3 (17.Nd4 f5 18.Nc6 Bc6 19.dc6 Nf6=) 17...f5 (better 17...Na4!? 18.Ba3 f5-/+) 18.Nc5= Nc5 19.Nd2 Qe7 20.f4 (20.Rbe1 Rae8=) 20...Rae8 (20...ef4!? 21.Bg7 A) worse 21...Kg7 22.ef4 (worse 22.Rf4 Qe3 23.Kh1 Qd3 24.Qb2 Kh7-/+) 22...Rfe8 23.Rbd1=; B) 21...Qe3 22.Kh1 Kg7-/+) 21.fe5= Be5 (worse 21...de5 22.Ba3+/-) 22.Be5 Qe5 23.Rbe1 Bc8 24.Nf3 Qg7 25.Nd4 Bd7 26.Re2 Re5 27.Rfe1 Rfe8 28.Qd1 h5 (28...R5e7 29.Qc2=) 29.Kf2 (29.Qc2 Qh6 30.e4 fe4 31.Be4 Bg4=) 29...Qh6=+ The backward pawn on e3 becomes a target 30.h4 g5 (30...Qg7 31.Qc2=+) 31.Qc2 (31.hg5 Qg5 32.Nf3 Ne4 33.Kg1 Qg3 34.Ne5 Re5=) 31...gh4=+ 32.gh4 Rg8 (better 32...Qg7=+) 33.Bf3? (better 33.Rg1!?=) 33...Ne4-/+ 34.Be4 fe4 (34...Re4?! 35.Nf3=) 35.Rg1?? (better 35.Rf1 Bh3 36.Rh1-/+) 35...Qf6 36.Ke1 Rg1 (36...Rg1 37.Kd2 Bg4-+) 0-1. Kiseleva,A (2020) - Makarian,Rudik (2440), Titled Tuesday, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2)

6.g3 c5 7.Bg2 d6 8.0-0 Ra7 9.a4 b6 10.d4 Nfd7 11.e3 Rc7 12.Qb3 cd4 13.ed4 Bb7 14.Nbd2 e6 15.Ba3 Nf6 16.Rac1 Bh6 17.Rcd1 Re8 18.Ne1 Bg2 19.Ng2 Rd7 20.Nf3 Bf8 21.Ne3 Qc8 22.c5 (better is 22.d5!?+=) 22...dc5+= 23.Nc4 Nd5 24.Nfe5 Rc7 (24...Rdd8!?+=) 25.dc5+= Rc5 (25...bc5!? 26.Na5 Rd8+=) 26.Bc5+/- Bc5 27.Qf3 f6 28.Ng4 Nd7 29.Rfe1 Bf2? (better is 29...Qa8+/-) 30.Nf2 (30.Qf2?! Qc4 31.Rd4 Qc5=) 30...Qc4 31.Rd5! Ne5 (31...Qd5 32.Qd5 Combination; 31...ed5 32.Re8 Pinning (32.Re8 Deflection)) 32.Rde5 (better is 32.Ree5!? fe5 33.Rd7 Qc1 34.Kg2 Rf8+–) 32...fe5 33.Qe4 (better is 33.Qc6 Qc6 34.bc6+–) 33...Qa2? (33...Qe4 34.Ne4 Rd8+–) 34.Ng4 Rf8 35.Qe5 (35.Qe5 Qd2 36.Qe6 Kg7 37.Qe5 Kg8 38.Rb1+–; worse is 35.Ne5 Qf2 36.Kh1 g5+–) 1–0. Latas,B (2275) – Kuchynka,Lub (2005), Brno CZE, Open, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

5.b5 a4

6.Na3 0-0 7.g3 c6 8.Bg2 d6 9.0-0 e5 10.d3 Re8 11.Qc2 Nbd7 12.Rfd1 Qb6 13.Rab1 Ng4 14.e3 Nc5 (better 14...c5=) 15.bc6+- bc6 16.Be5 Qb1? (16...Qc7!? 17.Bg7 Kg7+-) 17.Rb1 (17.Qb1 de5 18.h3 Nf6+-) 17...de5 18.h3 Nf6 19.d4 (19.Ne1 Bd7+-) 19...ed4? (19...Bf5 20.Qd1 Bb1 21.Nb1 ed4 22.Nd4 Ra6 23.Bc6 Rd8+-) 20.ed4?? (better 20.Nd4 Nfe4 21.Rb6+-) 20...Bf5+= 21.Qd1 Bb1 22.dc5 (better 22.Nb1 Nce4 23.Nfd2+=) 22...Ba2-/+ 23.Qc2? (better 23.Nd4 Rad8 24.Bc6-/+) 23...Bb3-+ 24.Qc1 Ne4 25.Nd2 Nd2 (25...Nc5?! 26.Bc6 Nd3 27.Qf1=+) 26.Qd2 Rad8 27.Qf4? (27.Qa5 Rc8 28.Qa6-+) 27...Re1 (27...Bb2 28.Bc6 Re1 29.Kg2 Ba3 30.Qc7-+) 28.Kh2 Be5 29.Qg5 Rd2 (better 29...f6 30.Qh4 Rd2-+) 30.Qd2+- Ra1 31.Nc2 Ra2 (31...Bc2 32.f4 Bg7 33.Qc2+-) 32.Qd8 (32.Qe3 Rc2 33.Qe5 Rf2+-) 32...Kg7 33.Ne3 Rf2 (33...h5 34.Qe8 Bc3 35.Qc6+-) 34.Ng4 Bf6 35.Nf6 Rf6 36.Qd4 g5 (36...h5 37.Qa1+-) 37.h4 (better 37.Bc6 a3 38.Bg2+-) 37...Kg6 (37...gh4 38.g4 h6+-) 38.h5! Kh6 (38...Kh5 39.Qf6 Deflection) 39.Qf6 Kh5 40.Bf3 (40.Bf3 g4 41.Be4 Bc4 42.Qh4) 1-0. Spiritchaser84 (2360) - vomere (2215), Rated Bullet game, lichess.org, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2)

6.g3 c6 (6...0-0 7.Bg2=) 7.Na3 d5 8.Bg2 0-0 9.0-0 dc4 10.bc6 Nc6 11.Nc4 Be6 12.Ne3 a3 13.Bc3 h6 14.Ne1 Nd5 15.Bg7 Ne3 16.fe3 Kg7 17.Nd3 Bd5 18.Bh3 Qd6 19.Qc2 e5 (19...f5 20.Rfb1=) 20.Rfb1 Be4 21.Qc3 (21.Rb7?? Nd4 22.Qd1 Bb7 23.ed4 Qd4 24.Nf2 Rfd8–+) 21...h5 (21...Ra7!?=) 22.Rb6+= Bd3 23.ed3 h4 (23...Ra7!?+–) 24.Rb7+– hg3 25.hg3 Ne7 26.Rf1 (26.Rab1 Nd5 27.Qc4 Rad8+–) 26...Nd5 (26...f5 27.Rb5 Nd5 28.Qb3+–) 27.Qc4+– Rad8 28.Ra7 Qb8 29.Ra5 Nb6 (29...Nf6 30.Bg2+–) 30.Qc3 (30.Qb4 Qd6 31.Qd6 Rd6+–) 30...f6 (30...Nd5 31.Qa3 Qb6 32.Rc5+–) 31.Qa3 (31.Bg2 e4 32.Qb4 Rd3+–) 31...Rf7 (31...e4 32.Qe7 Rf7 33.Qe4 Qg3 34.Qg2 Qg2 35.Bg2 Rd3 36.Rb5+–) 32.e4 (32.Bg2!? Rd6 33.Rb5 Qd8+–) 32...Rd6+– 33.Rc1 Qd8 34.Rc3 Rd4 (34...f5!? 35.Qc5 Re6 36.ef5 gf5+–) 35.Ra7+– Nd7 36.Be6 f5?? (36...Qb6 37.Ra6 Qb1 38.Kf2 Qh1+–) 37.Rd7 (37.Bf7 Qg5 38.Bc4 Qg3 39.Kf1 Qh3 40.Ke1 Qh1 41.Kf2 Qh4 42.Ke2 Qg4 43.Ke1 Qg1 44.Ke2 Qg4 45.Ke3 Qf4 46.Ke2 Qg4=) 37...Rfd7+– 38.Bd7 (38.ef5 Qg5 39.Kg2 Qd2 (39...gf5?! 40.Bd7 Qd2 41.Kg1 Rd7 42.Qc5 Qd1 43.Kf2 Qd2 44.Kg1 Qe1 45.Kh2=) 40.Kf1 Re4–+) 38...Rd7 (38...Qd7 39.Qc5 Qe8 40.Qc7 Rd7 41.Qc6+–) 39.Qc5 Qf6 40.Qc8 (40.ef5 Qf5 41.Qf2 Qg4+–) 40...Rf7 (40...Qd6 41.Rb3+–) 41.ef5 Qg5 42.d4! ed4 43.Rd3 (better 43.Rf3!? gf5 44.Qc2+–) 43...Qh5= 44.Rd4 ½–½. Moore,Graham J (2215) – Derakhshani,Borna (2315), 5th Hull England, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

5.b5 b6

6.g3 Bb7 7.Bg2 0-0 8.0-0 c5 9.d3 d6 10.Qc2 Nbd7 11.Re1 Ne8 12.Nbd2 Bb2 13.Qb2 Ng7 14.e4 e5 15.Nf1 Ne6 16.Qd2 Qe7 17.Ne3 Rae8 18.Nh4 Nd4 19.Nc2 Nc2 20.Qc2 f5 21.ef5 Bg2 22.Ng2 gf5 23.Qe2 Qf7 24.Qf3 (better is 24.Ne3!?=) 24...e4-/+ 25.de4 fe4 (25...Ne5 26.Qe2 Nc4-/+) 26.Qg4 (better is 26.Qf7 Kf7 27.Kf1=) 26...Kh8–+ 27.Qe2 Ne5 28.Rec1 Nf3 29.Kh1 Re6 (29...Nd4 30.Qf1–+) 30.Ne1 (better is 30.Qb2!? Kg8 31.Qe2-/+) 30...Nd4–+ 31.Qe3 Qf2 32.Ng2 Qe3 (32...Ref6!? 33.Qf2 Rf2 34.Ne3–+) 33.Ne3-/+ Rf3 34.Nd5 e3 35.Nb6?? (35.Nf4 Re5 36.Nd3–+) 35...Rf2 36.Nd5 Nf3 (36...Nf3 37.Rc2 Rc2 38.Ne3 Rh2) 0–1. Krejci,Jan1 (2180) – Bina,Josef (2130), CZE–chT1 East, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.b5 b6)

6.g3 Bb7 7.Bg2 0-0 8.0-0 d5 9.Na3 Nbd7 10.d3 e6 11.Qc2 c5 12.bc6 Bc6 13.Rac1 Rc8 14.Qb1 Qe7 15.Qa1 (15.cd5 ed5 16.Nc2 Rfe8+= (16...Qe2? 17.Ncd4 Qe7 18.Nc6+-)) 15...Ne8 (15...a4 16.Qb1=) 16.Bg7 Ng7 17.Qb2 Nf5 (17...e5 18.cd5 Bd5 19.Nb5=) 18.cd5+= ed5 19.Rfe1 d4 20.Nc4 Attacking the backward pawn on b6 20...Qf6 (better 20...Bf3!? 21.Bf3 Rc5+=) 21.Nb6+- Rb8 22.Nd7 Bd7 (22...Rb2?? 23.Nf6 Kg7 24.Rc6 Ra2 25.Nd7+-) 23.Qa3 (23.Qa1 Qd6+-) 23...a4 24.Rc7 Bb5 (24...Rfd8 25.Rec1+/-) 25.Qc5+- Rfe8? (better 25...Rfd8!?+-) 26.Rb1 Ba6 (26...Qb6 27.Qb6 Rb6+-) 27.Rb8 Rb8 28.Rc6 Rb1 29.Bf1 (29.Bf1 Qd8 30.Ra6+-) 1-0. FaridFirmansyah (2405) - Arifars17 (2410), CF WEEKLY June Arena, lichess.org, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5)

6.g3 Bb7 7.Bg2 0-0 8.0-0 d5 9.cd5 Bd5 10.Nc3 Ne4 11.Qc2 Nc3 12.dc3 e6 13.Rfd1 Qe8 14.c4 Bb2 15.Qb2 Bb7 16.Ne5 Bg2 17.Ng4 f5?? (17...f6 18.Nf6 Rf6 19.Qf6 Nd7+–) 18.Nh6 1–0. Sabuk,Piotr (2190) – Iwanow,Anna (2095), 5th Open, Wroclaw Poland, 2010.

6.g3 Bb7 7.Bg2 0-0 8.0-0 d6 9.Qc2 e5 10.Nc3 Nbd7 11.Rad1 Nc5 12.d4 ed4 13.Nd4 Bg2 14.Kg2 Re8 15.f3 Qd7 16.e4 Ne6 (16...a4 17.a3+/-) 17.Ne6 (17.Nc6 Nd8 18.e5 Nh5 19.Nd8 Rad8 20.ed6 Nf6+/-) 17...Re6 18.Ne2 Nh5 19.g4 Bb2 20.Qb2 (20.gh5?! Bg7=) 20...Nf6 21.Nf4 Re5 22.Nd3 Re6 23.Nf4 Re5 24.Nd3 Re6+= 25.e5 Qe8 26.Rfe1 de5 27.Re5 Nd7 28.Re6+= Qe6 29.Nf4 Qe5 30.Qd2 Nf6 31.Re1 Qc5 32.Qc3 Qd6 33.Qe5 Qe5 34.Re5 ½–½. Adamski,Jan (2415) – Gohil,Harry (2280), Staufer op, 1994.

6.g3 Bb7 7.Bg2 0-0 8.0-0 e6 9.d3 d5 10.Nbd2 Nbd7 11.Qc2 Rc8 12.cd5 ed5 13.Nd4 Nc5 14.Bh3 Ra8 Black prepares the advance a4 15.Rac1 a4 16.Ba3 Nfd7 17.Nc6 (worse is 17.Bc5 Nc5 (worse is 17...bc5 18.Nc6 Bc6 19.bc6+=) 18.N2f3 Qd6+=) 17...Qg5?? (better is 17...Bc6 18.bc6 Nb8+=) 18.d4 (18.Nf3!? Qf6 19.Bd7 Qd6+–) 18...Qh5 (18...Rfe8 19.dc5 (19.Bc5?! Bc6 20.bc6 Nc5 21.dc5 Re2+–) 19...Nc5 20.Bc5 bc5 21.Nf3+–) 19.Bg2 (better is 19.Bd7 Nd7 20.Ne7 (20.Bf8?! Bf8 21.Qd3 Re8+–) 20...Kh8 21.Qc7 Qe2 22.Qd7 Qd2 23.Qb7 Qa2 24.Bd6+–) 19...Ne6 20.Bf8 Rf8 21.e3 g5? (21...Bc6 22.Bf3 Qh6 23.Qc6 Nf6+–) 22.Bd5 g4 (22...Kh8+–) 23.Ne7 Kh8 24.Bb7 f5 (24...Qb5 25.Ne4 Qh5 26.Qa4+–) 25.Nd5 Nf6 26.Nf4 (26.Nc7!? Ng5+–) 26...Nf4 27.gf4 Ng8 (27...Rf7 28.Qa4 Ne8 29.Bc6+–) 28.Rfd1 (28.Qc7 Qf7+–) 28...Rf6 29.Nf1 Rh6 (29...Qe8 30.Qa4 Qb8 31.Qa8 Qa8 32.Ba8+–) 30.Qc7 Bf6 31.Bd5 Bh4 32.Qe5 Bf6 33.Rc8 1–0. Talbi,Chafik (2200) – Alnami,Salaheddin (1940), 13th Ameyar Mem, 2015. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.b5 b6)

5.b5 c6

6.Na3 d5 (6...0-0 7.e3=) 7.e3 0-0 8.Be2 Bg4 9.0-0 Nbd7 10.bc6 bc6 11.cd5 cd5 12.Nb5 Bf3 13.Bf3 (13.gf3 Ne8 14.d4 Nb6=) 13...a4 (13...Rb8!? 14.a4 Ne4=) 14.Rb1+= Nb6 (14...Nc5 15.Ba3 Ne6 16.Nc3+=) 15.Bd4 (15.d3 Nfd7+–) 15...Nfd7+= 16.Bg7 (16.d3 Bd4 17.Nd4 Rc8+=) 16...Kg7 17.Qc1 e6 18.Qa3 (18.Be2 Qe7+=) 18...Nc4= 19.Qb4 (19.Qc3!? Qf6 20.d4=) 19...Qa5=+ 20.Rfd1 Rfb8 21.Qa5 Ra5 22.Nc3 Rb1 23.Nb1 Rb5 24.Be2 Rb2 (24...Ndb6 25.Bc4 Nc4 26.Nc3-/+) 25.Bc4 dc4 26.Nc3 Nc5 27.Kf1 a3 28.Ke2 f5 29.f3 (29.Ra1 Kf6=+) 29...e5 (29...Nd3 30.Rb1 Nb4 31.Rb2 ab2 32.Kd1 Na2 33.Kc2 Nb4 34.Kb2 Nd3 35.Kc2 Ne1 36.Kd1 Ng2 37.Nb5=) 30.Rc1 Nd3 31.Ra1 (31.Rb1 f4=+) 31...Kf7 (31...Nb4 32.Kd1=+) 32.Kd1 Kg7 33.Ke2 Kf7 34.Kd1 Nf2 (34...Nb4!?=+) 35.Ke2= Nd3 36.Nb1 (36.Kd1 Nb4=+) 36...Ra2 (36...Nc1 37.Kd1 Na2 38.Na3=) 37.Ra2= Nc1 38.Kd1 Na2 39.Na3 c3 40.Nc2 e4 41.fe4 fe4 42.Nd4 Kf6 43.Nc6 Ke6 44.Kc2 Kd6 45.Nd8 Ke7?? (better 45...cd2 46.Nf7 Kd5 47.Kd2 Nb4=) 46.dc3+– Kd8 47.Kb2 Kc7 (47...Nc3 48.Kc3 Kd7+–) 48.Ka2 Kc6 49.Kb3 Kc5 50.c4 1–0. Stupak,Kirill – Luong,Phuong Hanh, Delhi, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.a4 d5 7.e3 0-0 8.Be2 Nbd7 9.0-0 Re8 (9...dc4 10.bc6 bc6 11.Na3=) 10.cd5 cd5 11.d4 Nb6 12.Nbd2 Bf5 13.Qb3 Ne4 14.Ne4 de4 15.Ng5 e6 16.f4 h6 17.Nf7 Kf7 18.g4 Qd5 19.Qd1 Rec8 20.gf5 ef5 21.Qd2 Bf8 22.Bc3 Qb3 23.Ba5 (23.Rfc1 Nc4 24.Bc4 A) worse 24...Qc4 25.Ba5 Qb3 26.Rc3 Rc3 27.Qc3+= (worse 27.Bc3 Ra4 28.Ra4 Qa4=+); B) 24...Rc4=+) 23...Ra5 (better 23...Nd5!? 24.Kh1 Bd6=+) 24.Qa5+= Qe3 25.Rf2 (better 25.Kh1 Nd5 26.b6 Nf4 27.Rf4 Qf4 28.Qd5 Ke7 29.Qb7 Kd8 30.Qd5 Ke7 31.a5+=) 25...Qd4-/+ 26.Rd1 Qe3 27.Rdf1? (better 27.Qe1!? Bg7 28.Kh1=+) 27...Nd5 28.Qe1 Rc2 29.Bd1 Qe1 30.Re1 Rc1 31.Rc2 Bc5 Black intends e3 32.Kh1 Rc2 33.Bc2 Nf4 34.a5 e3 (34...Kf6 35.Be4 fe4 36.Re4-/+) 35.a6 ba6 36.ba6 Kf6 37.h4? (37.Ba4 Nd3 38.Re2 f4–+) 37...Ke5 (37...e2 38.Bd1 ed1B 39.Rd1–+) 38.Bb1? (better 38.Kh2!?–+) 38...e2 39.Bd3 Nd3 40.Re2 Kf4 41.Rc2 Ba7 (better 41...Be3–+) 42.Rc7-/+ Be3 43.h5 g5 (43...gh5 44.a7 Ba7 45.Ra7–+) 44.Rc4 (44.Re7 Bc5 45.Rc7 Nf2 46.Kg2 Be3–+) 44...Kf3 45.Rc3 Ke2 46.Rc7 (46.Kg2–+) 46...Kf1 47.Rc4 g4 48.Ra4 g3 49.Ra1 Nc1 (49...Nc1 50.Ra2 Na2 51.a7 g2 52.Kh2 g1Q 53.Kh3 Qg4 54.Kh2 Qg2) 0–1. Hanauer,Milton Loeb – Seidman,Herbert, New York, 1941. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.e3 cb5 7.cb5 0-0 8.Be2 d6 9.0-0+= Nbd7 10.a4 Nb6= 11.d3 e5 12.Nbd2+= Be6 13.Ng5 (13.e4 Rc8+=) 13...Qe7 (13...Rc8 14.Ne6 fe6 15.Nb3+=) 14.d4 (14.Ne6 Qe6 15.Nc4 Nc4 16.dc4 Rfc8+=) 14...Nfd7= 15.Ne6 Qe6 (15...fe6 16.Nb3=) 16.Qb3 (16.de5 Be5 17.Be5 de5+=) 16...d5 (16...ed4 17.Qe6 fe6 18.Bd4 Bd4 19.ed4=) 17.de5+= Ne5 (17...Be5 18.Be5 Ne5 19.Nf3+=) 18.Rfc1 (18.Rfd1 Rac8+=) 18...Rfc8 (18...Rac8 19.Bd4+=) 19.Bd4+= Nec4 20.Nc4 dc4 21.Qb2 Bd4 22.Qd4 Rd8 23.Qc3 Rdc8 24.Bf3 Rc7 25.Rd1 Nd7 26.Bd5 Qe7 27.Qd4 Ne5 28.b6 Rc5 29.Rab1 Rd8 30.e4 c3 31.Rbc1 Rc4? 32.Bf7!+– (32.Bf7 Kf7 33.Qd8 Qd8 34.Rd8 Ra4 35.Kf1+–; 32.Bc4? Rd4 33.Rd4 Qa3–+ (33...Nc4 34.Rc4 Qe6 35.R4c3+/-)) 1–0. Panteleev,P (2290) – Lange,Ca (2060), 5th LGA Premium Cup, Nuernberg GER (5), 2008.

5.b5 d6

6.e3=.

6.g3 e5 7.Bg2 0-0 A) 8.Nc3 A1) 8...Re8 9.d4 (9.0-0 e4 10.Nd4 Qe7 11.d3 d5 12.Qa4= 0.16; 9.d3 Nbd7 10.0-0 Nc5 11.Ng5 Nfd7 12.Nge4= 0.03) 9...e4 10.Nd2 e3 11.fe3 Re3 12.0-0+= 0.31; A2) 8...e4 9.Nd4 (9.Ng5 Nfd7 10.h4 Nb6 11.Na4 Nc4 12.Bg7= 0.09) 9...Ng4 10.Nc2 Re8 11.Rb1 Be6 12.h3+= 0.34; A3) 8...Nbd7 9.0-0 (9.d3 Nc5 10.0-0 a4 11.Rb1 Re8 12.a3= 0.03; 9.a3 Qe7 10.0-0 Re8 11.d3 Nc5 12.Qc2= –0.03) 9...Re8 10.d3 Nc5 11.Ng5 Nfd7 12.Qd2= 0.03; B) 8.d3 B1) 8...Nbd7 9.Nc3 (9.0-0 a4 10.a3 Nc5 11.Nc3 Re8 12.Rb1= 0.03; 9.Nbd2 Re8 10.0-0 a4 11.Rb1 Nc5 12.h3= –0.06) 9...Nc5 10.0-0 a4 11.Nd2 Bf5 12.Ba3= 0.09; B2) 8...Bg4 9.Nc3 (9.0-0 Nbd7 10.h3 Bf5 11.g4 Be6 12.Nbd2= 0.09; 9.h3 Be6 10.Nc3 Nfd7 11.0-0 Nc5 12.Qc2= 0.13) 9...Nbd7 10.h3 Be6 11.Ng5 Nc5 12.Ne6= 0.22; B3) 8...Re8 9.Nc3 (9.0-0 Nbd7 10.Nc3 Nc5 11.Ng5 Nfd7 12.Qd2= 0.03; 9.Nbd2 Nbd7 10.0-0 Qe7 11.Rb1 Nc5 12.a4= –0.06) 9...Nbd7 10.0-0 Nc5 11.Ng5 h6 12.Nge4= 0.03; C) 8.0-0 C1) 8...a4 9.d4 (9.d3 Re8 10.a3 Nbd7 11.Nc3 Nc5 12.Rb1= 0.03; 9.a3 Be6 10.d3 Nbd7 11.Ng5 Nc5 12.Ne6= 0.06) 9...e4 10.Nfd2 d5 11.cd5 Qd5 12.Qc2= 0.19; C2) 8...Re8 9.Nc3 (9.d3 Nbd7 10.Nc3 Nc5 11.Rb1 a4 12.a3= 0.03; 9.d4 e4 10.Nfd2 e3 11.fe3 Ng4 12.Qa4=+ –0.59) 9...e4 10.Nd4 Qe7 11.d3 d5 12.Qa4= 0.16; C3) 8...Be6 9.d3 (9.d4 Bc4 10.de5 de5 11.Ne5 Qd1 12.Rd1= –0.09; 9.Qc2 h6 10.d4 Bf5 11.Qa4 e4 12.Nfd2= –0.06) 9...h6 10.Nc3 Re8 11.a3 Nbd7 12.Nd2= 0.09.

6.g3 e5 7.Bg2 a4 A) 8.d4 A1) 8...0-0 9.a3 (9.de5 Ng4 10.c5 Ne5 11.Ne5 de5 12.0-0= 0.03; 9.0-0 e4 10.Nfd2 d5 11.cd5 Qd5 12.Qc2= 0.16) 9...e4 10.Nfd2 d5 11.Nc3 dc4 12.Nc4= 0.19; A2) 8...ed4 9.0-0 (9.Bd4 0-0 10.0-0 c5 11.Bc3 Re8 12.Re1= 0.13; 9.Nd4 0-0 10.0-0 Nbd7 11.a3 Re8 12.Nd2= –0.03) 9...0-0 10.Bd4 Be6 11.Nc3 c5 12.bc6= 0.16; A3) 8...e4 9.Nfd2 Qe7 10.Bc1 0-0 11.Nc3 c5 12.0-0= 0.09; B) 8.d3 B1) 8...c6 9.Nc3 (9.Na3 0-0 10.0-0 Re8 11.Rb1 Qc7 12.Bc3= 0.13; 9.0-0 cb5 10.cb5 0-0 11.Na3 Nd5 12.Nc4+= 0.28) 9...a3 10.Bc1 e4 11.de4 Nd5 12.ed5+= 0.56; B2) 8...Qe7 9.Nc3 (9.0-0 Nbd7 10.Nc3 Nc5 11.Ba3 e4 12.Nd2= 0.22; 9.a3 Nbd7 10.0-0 0-0 11.Nc3 Nc5 12.Rb1= 0.00) 9...a3 10.Bc1 0-0 11.0-0 Nbd7 12.Nd2+= 0.31; B3) 8...0-0 9.a3 (9.0-0 Nbd7 10.a3 Nc5 11.Nc3 Re8 12.Rb1= 0.00; 9.Nbd2 Nbd7 10.0-0 Re8 11.Rb1 Nc5 12.a3= –0.06) 9...Nbd7 10.0-0 Re8 11.Nc3 Nc5 12.Rb1= 0.03; C) 8.0-0 C1) 8...Qe7 9.Nc3 (9.d3 0-0 10.Nc3 a3 11.Bc1 e4 12.de4= 0.22; 9.a3 Nbd7 10.Nc3 Nc5 11.d4 ed4 12.Nd4= 0.09) 9...a3 10.Bc1 e4 11.Nd4 Qe5 12.Nc2+= 0.38; C2) 8...0-0 9.d4 (9.d3 Nbd7 10.a3 Nc5 11.Nc3 Re8 12.Rb1= 0.03; 9.a3 e4 10.Ne1 Nbd7 11.Nc3 Nb6 12.Ne4= 0.13) 9...e4 10.Nfd2 d5 11.cd5 Qd5 12.Qc2= 0.19; C3) 8...Nbd7 9.a3 (9.d4 0-0 10.de5 Ng4 11.Nbd2 Nge5 12.Rb1= 0.00; 9.Qc2 Nc5 10.d3 0-0 11.a3 Re8 12.Nc3= 0.03) 9...0-0 10.Nc3 Nb6 11.d3 Qe7 12.Nd2= 0.16.

6.g3 e5 7.Bg2 Ra7 A) 8.0-0 A1) 8...0-0 9.d3 (9.Nc3 Re8 10.d4 Nbd7 11.de5 de5 12.Qc2= 0.25; 9.d4 e4 10.Nfd2 Re8 11.Nc3 e3 12.fe3= 0.19) 9...Bg4 10.Qd2 Re8 11.Qe3 Ra8 12.h3+= 0.34; A2) 8...a4 9.d4 (9.a3 Be6 10.d4 Nfd7 11.Qd3 0-0 12.Nbd2+= 0.31; 9.Nc3 a3 10.Bc1 e4 11.Ng5 Nfd7 12.f4= 0.25) 9...e4 10.Nfd2 Bf5 11.d5 0-0 12.Bd4+= 0.53; A3) 8...Bf5 9.d4 (9.d3 0-0 10.Nbd2 Nbd7 11.e4 Be6 12.d4= 0.25; 9.Qb3 Nbd7 10.Qe3 Nb6 11.d3 Ng4 12.Qd2= 0.22) 9...e4 10.Nfd2 0-0 11.e3 Re8 12.Nc3= 0.25; B) 8.Nc3 Bf5 9.0-0 (9.b6 Ra6 10.bc7 Qc7 11.d3 0-0 12.Rb1= 0.22; 9.d4 Nbd7 10.h3 Be6 11.d5 Bf5 12.g4+= 0.41) 9...Nbd7 10.d4 Qe7 11.h3 Nb6 12.c5+= 0.44; C) 8.d4 e4 9.Nfd2 (9.Ng5 e3 10.Ne4 Ne4 11.Be4 ef2 12.Kf2= –0.12) 9...Qe7 10.Nc3 Bf5 11.b6 Ra6 12.bc7+= 0.53.

6.g3 e5 7.Bg2 Qd7 A) 8.0-0 A1) 8...Qe6 9.d4 (9.Qc2 Nbd7 10.d4 0-0 11.c5 Nd5 12.cd6+= 0.34; 9.d3 0-0 10.Nc3 h6 11.a3 Nbd7 12.Nd2= 0.22) 9...e4 10.Nfd2 e3 11.d5 Qe7 12.fe3+= 0.34; A2) 8...0-0 9.d4 (9.Nc3 Qf5 10.d4 Nbd7 11.de5 de5 12.Nd5+= 0.31; 9.d3 Re8 10.Nc3 Qf5 11.h3 h6 12.e4+= 0.28) 9...e4 10.Nfd2 d5 11.Nc3 a4 12.e3+= 0.50; A3) 8...Qe7 9.Ng5 (9.Nc3 0-0 10.d4 Nbd7 11.Rc1 Re8 12.de5= 0.09; 9.d4 e4 10.Ng5 h6 11.Nh3 Bf5 12.Nf4= 0.00) 9...0-0 10.Nc3 c6 11.Qb3 Ng4 12.Nf3= 0.13; B) 8.d3 B1) 8...Qe6 9.Ng5 (9.0-0 Nbd7 10.Nc3 h6 11.a4 0-0 12.Nd2= 0.13; 9.Nc3 0-0 10.Ng5 Qg4 11.Nge4 Ne4 12.Ne4= 0.16) 9...Qf5 10.Ne4 0-0 11.0-0 Nbd7 12.Nbc3= 0.22; B2) 8...Qf5 9.h3 (9.Nc3 Nbd7 10.e4 Qe6 11.0-0 0-0 12.Ng5= 0.09; 9.0-0 0-0 10.h3 h6 11.Nc3 Nbd7 12.d4= 0.13) 9...0-0 10.g4 Qe6 11.Nc3 Nbd7 12.g5= 0.25; B3) 8...0-0 9.Nc3 (9.0-0 Qe6 10.Nc3 Nbd7 11.Ng5 Qe8 12.e3= 0.16; 9.Nbd2 a4 10.0-0 Qf5 11.h3 Nbd7 12.Rb1= 0.09) 9...Re8 10.0-0 Qg4 11.h3 Qe6 12.Ng5= 0.22; C) 8.d4 C1) 8...e4 9.Nfd2 Qe7 10.Nc3 e3 11.fe3 Qe3 12.b6+= 0.41; C2) 8...0-0 9.0-0 (9.de5 Ng4 10.0-0 Ne5 11.Ne5 de5 12.Nc3+= 0.44; 9.Nc3 ed4 10.Nd4 Re8 11.0-0 Qe7 12.Nd5= 0.22) 9...e4 10.Nfd2 d5 11.Nc3 a4 12.e3+= 0.50; C3) 8...ed4 9.0-0 (9.Nd4 0-0 10.Nc3 Re8 11.0-0 Qe7 12.Nd5= 0.22; 9.Bd4 Qe6 10.Nbd2 0-0 11.0-0 Re8 12.Qa4= 0.09) 9...0-0 10.Bd4 Qe6 11.Qd3 Qe7 12.Nc3= 0.25.

6.g3 e5 7.Bg2 Nbd7 A) 8.d4 A1) 8...0-0 9.Qc2 (9.0-0 Qe7 10.Nc3 Nb6 11.Qb3 ed4 12.Nd4= –0.19; 9.a3 Qe8 10.de5 Ne5 11.Ne5 de5 12.Nc3= 0.06) 9...ed4 10.0-0 Nc5 11.Nd4 Qe7 12.Nc3= 0.06; A2) 8...e4 9.Nfd2 (9.Ng5 e3 10.f4 h6 11.Nf3 Nb6 12.Na3=+ –0.28) 9...Qe7 10.e3 Nb6 11.Nc3 Bf5 12.h3+= 0.38; A3) 8...Qe7 9.Qc2 (9.0-0 0-0 10.Nbd2 a4 11.a3 e4 12.Ng5=+ –0.41; 9.Na3 0-0 10.0-0 e4 11.Ne1 Re8 12.Qd2= –0.19) 9...ed4 10.0-0 Nc5 11.Bd4 0-0 12.Nc3= –0.12; B) 8.Nc3 B1) 8...Qe7 9.d3 (9.0-0 0-0 10.d3 Nc5 11.Ng5 a4 12.Nge4= 0.06; 9.Rb1 0-0 10.0-0 Nc5 11.d3 a4 12.a3= 0.00) 9...0-0 10.0-0 Nc5 11.Nd2 Re8 12.Nde4= 0.13; B2) 8...0-0 9.0-0 (9.d3 Nc5 10.0-0 Re8 11.Rb1 Qe7 12.Qc1= 0.00; 9.Rb1 Nb6 10.d3 Re8 11.0-0 a4 12.a3= 0.06) 9...Re8 10.d3 Nc5 11.Ng5 Bf5 12.Ba3= 0.09; B3) 8...Nb6 9.d3 0-0 10.0-0 Qe7 11.Na4 Na4 12.Qa4= 0.03; C) 8.0-0 C1) 8...Qe7 9.d3 (9.d4 0-0 10.Nbd2 a4 11.de5 de5 12.Qc2= 0.06; 9.Nc3 0-0 10.d3 Nc5 11.Ng5 a4 12.Nge4= 0.06) 9...0-0 10.Nc3 Nc5 11.Qc2 a4 12.Ba3= 0.09; C2) 8...Nb6 9.c5 (9.d3 0-0 10.c5 Nbd7 11.cd6 cd6 12.Nbd2= 0.19; 9.Na3 0-0 10.d3 Nfd7 11.d4 e4 12.Nd2= 0.19) 9...Nbd7 10.d4 e4 11.Nfd2 dc5 12.e3= 0.22; C3) 8...0-0 9.Nc3 (9.d4 Qe7 10.Nbd2 e4 11.Ng5 e3 12.Nde4=+ –0.41; 9.d3 a4 10.a3 Nc5 11.Nc3 Bf5 12.d4= 0.00) 9...Re8 10.d3 Nc5 11.Rb1 a4 12.a3= 0.03.

6.g3 e5 7.Bg2 Be6 8.d3 Qc8 (8...h6 9.d4 (9.0-0 0-0 10.Nc3 Re8 11.Qc2 Qd7 12.Nd2= 0.13; 9.Nc3 0-0 10.0-0 Re8 11.a3 Nbd7 12.Nd2= –0.03) 9...e4 10.Nfd2 d5 11.cd5 Bd5 12.e3= 0.19; 8...0-0 9.Ng5 (9.0-0 h6 10.Nc3 Re8 11.Nd2 c6 12.Qa4= 0.03; 9.Nc3 h6 10.0-0 Nbd7 11.Nd2 Qb8 12.Rb1= 0.13) 9...Bc8 10.0-0 Nbd7 11.Nd2 h6 12.Nge4= 0.16; 8...c6 9.Qa4 (9.Nc3 0-0 10.0-0 Nbd7 11.Ba3 Qc7 12.Ng5= 0.16; 9.Ng5 Bf5 10.Nc3 0-0 11.0-0 h6 12.Nge4= 0.13) 9...Qb6 10.Nc3 Nbd7 11.Rb1 Nc5 12.Qa3= 0.22) 9.0-0 (9.Ng5 Bf5 10.Nc3 0-0 11.0-0 h6 12.Nge4= 0.25; 9.Nc3 Bh3 10.Bh3 Qh3 11.b6 c6 12.Ba3= 0.13) 9...Bh3 10.Nc3 (10.Bh3 Qh3 11.Nc3 0-0 12.e4= 0.09) 10...h5 (10...Bg2 11.Kg2 0-0 12.e4=; 10...0-0 11.Bh3 Qh3 12.e4= 0.09) 11.Re1 (11.e4 Bg4 (11...Bg2 12.Kg2 Qe6+=) 12.Qc2+= 0.31; 11.Bh3 Qh3 12.b6+= 0.28) 11...Bg2 (11...h4!? 12.Bh3 Qh3=+) 12.Kg2= h4 13.e4 (13.Nh4!? g5 14.Nf3 Qh3 15.Kg1=) 13...hg3=+ 14.fg3 Qh3 15.Kg1 Ng4 (15...g5 16.Re2=+) 16.Qd2 (16.Qe2!?=) 16...Bh6=+ 17.Qg2 Qg2 18.Kg2 Ne3 19.Re3 Be3 20.Nd5 Bb6 21.Rf1 (better 21.c5 dc5 22.Be5+–) 21...Nd7-/+ 22.Ng5 0-0 23.Nf6 (23.Ba3!?-/+) 23...Nf6–+ 24.Rf6 Kg7 25.Rf3 Rae8 26.a4 (26.g4 f6 27.Nh3 Rh8–+) 26...f6 27.Nh3 Rh8 (27...f5 28.ef5 Rf5 29.Nf4–+) 28.Nf2 Bf2 (28...Ref8 29.Ng4–+) 29.Rf2 c6 (29...Rh5 30.b6 cb6 31.Ba3–+) 30.d4 (30.Bc3!?-/+) 30...cb5–+ 31.ab5 Rc8 (31...Rc8 32.c5 Rhd8–+ (32...dc5?! 33.de5 a4 34.ef6 Kf7 35.e5-/+)) 0–1. Jorissen – Madsen, Viborg, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 a5 5.b5 d6)

6.g3 e5 7.Bg2 Be6 8.d4 A) 8...e4 9.Nfd2 d5 10.cd5 Bd5 11.e3 0-0 12.Nc3= 0.22; B) 8...Nfd7 9.de5 (9.Nbd2 0-0 10.de5 de5 11.0-0 c6 12.a4= 0.16; 9.Qc2 Bf5 10.e4 Bg4 11.de5 Bf3 12.Bf3= 0.19) 9...de5 10.Qc2 0-0 11.0-0 c6 12.Rd1= 0.19; C) 8...ed4 9.Nbd2 (9.Nd4 Qc8 10.b6 c6 11.Ne6 Qe6 12.Nd2= 0.00) 9...0-0 10.Nd4 Qc8 11.0-0 Nbd7 12.Rc1= 0.03.

6.g3 e5 7.Bg2 Qe7 A) 8.Nc3 A1) 8...0-0 9.Qc2 (9.d3 Nbd7 10.0-0 Nc5 11.Ng5 a4 12.Nge4= 0.06; 9.0-0 Nbd7 10.d3 Nc5 11.Na4 e4 12.de4= –0.06) 9...Nbd7 10.0-0 Nc5 11.d3 Re8 12.Nd2= 0.13; A2) 8...e4 9.Ng5 (9.Nd4 Nbd7 10.Qb1 Nc5 11.0-0 0-0 12.a4= –0.06) 9...0-0 10.Qc2 Bf5 11.Nge4 Ne4 12.Nd5+= 0.47; A3) 8...Nbd7 9.0-0 (9.d3 0-0 10.0-0 Re8 11.Nd2 Nc5 12.Nde4= 0.00; 9.Rb1 Nc5 10.0-0 0-0 11.d3 a4 12.a3= 0.03) 9...0-0 10.d3 Nc5 11.Qd2 Re8 12.Ng5= 0.03; B) 8.0-0 B1) 8...0-0 9.d3 (9.Nc3 Nbd7 10.d3 Nc5 11.Na4 e4 12.de4= –0.06; 9.c5 Nbd7 10.cd6 cd6 11.Nc3 d5 12.Qb3= –0.12) 9...Nbd7 10.Nc3 Nc5 11.Rb1 h6 12.Nd2= 0.09; B2) 8...e4 9.Nd4 (9.Ng5 0-0 10.d3 ed3 11.ed3 Re8 12.Nd2= 0.25; 9.Ne1 0-0 10.Nc3 Re8 11.Nc2 Nbd7 12.Ne3= 0.22) 9...0-0 10.Nc3 Nbd7 11.d3 Nc5 12.de4+= 0.28; B3) 8...Nbd7 9.d3 (9.d4 0-0 10.Nc3 Nb6 11.Qb3 ed4 12.Nd4= –0.19; 9.Nc3 0-0 10.d3 Nc5 11.Qd2 Re8 12.Ng5= 0.00) 9...0-0 10.Nc3 Nc5 11.Ng5 Ra7 12.Qd2= 0.06; C) 8.d3 C1) 8...Nbd7 9.Nbd2 (9.0-0 0-0 10.Nc3 Nc5 11.Qd2 a4 12.Rad1= 0.00; 9.Nc3 0-0 10.0-0 Nc5 11.Qd2 a4 12.Ba3= 0.03) 9...0-0 10.0-0 Re8 11.Ng5 e4 12.de4= 0.09; C2) 8...a4 9.Nc3 (9.0-0 Nbd7 10.Nc3 Nb6 11.Bc1 d5 12.cd5= 0.13; 9.a3 Nbd7 10.Nc3 Nc5 11.0-0 0-0 12.Rb1= 0.00) 9...a3 10.Bc1 Nbd7 11.Rb1 0-0 12.Rb3= 0.16; C3) 8...0-0 9.Nc3 (9.0-0 Nbd7 10.Nc3 Nc5 11.Rb1 Re8 12.a4= –0.06; 9.Nbd2 Nbd7 10.0-0 Re8 11.Ng5 h6 12.Nge4= 0.00) 9...Nbd7 10.0-0 Nc5 11.Qc2 a4 12.Ba3= 0.09.

6.g3 e5 7.Bg2 Bf5 A) 8.0-0 A1) 8...Qd7 9.Nc3 (9.Nh4 Be4 10.f3 g5 11.fe4 gh4 12.gh4= 0.16; 9.Qa4 0-0 10.Nc3 Bh3 11.d4 Bg2 12.Kg2= 0.03) 9...Bh3 10.d4 Bg2 11.Kg2 Qe7 12.de5+= 0.31; A2) 8...c6 9.d3 (9.Qa4 0-0 10.Nc3 Nbd7 11.d3 Rc8 12.Ba3= 0.06; 9.Nc3 0-0 10.d4 e4 11.Nd2 Re8 12.e3= 0.16) 9...cb5 10.cb5 0-0 11.Nbd2 Qd7 12.Nc4+= 0.34; A3) 8...0-0 9.Nc3 (9.d3 Qc8 10.Nc3 Bh3 11.e4 Bg2 12.Kg2= 0.19; 9.Nh4 Bc8 10.Nc3 Nbd7 11.Nf3 Qe7 12.d3= 0.03) 9...Re8 10.d3 Qc8 11.e4 Bg4 12.Qc2= 0.19; B) 8.Nh4 Bc8 (8...Be4 9.f3 Bb1 10.Rb1 0-0 11.0-0 Nbd7 12.Qc2= 0.19) 9.0-0 (9.Qc2 0-0 10.0-0 Re8 11.Nc3 Nbd7 12.d3= –0.03; 9.d4 e4 10.f4 Nbd7 11.Qc2 Nb6 12.0-0= –0.06) 9...0-0 10.Nc3 Re8 11.Qc2 Nbd7 12.d3= –0.03; C) 8.Nc3 C1) 8...Qe7 9.d3 (9.0-0 0-0 10.d3 Re8 11.a3 c6 12.e4= 0.19; 9.Qa4 0-0 10.d4 e4 11.Nd2 Nbd7 12.e3= –0.09) 9...0-0 10.0-0 c6 11.h3 Qd7 12.g4= 0.25; C2) 8...Qc8 9.d4 (9.0-0 0-0 10.d4 Re8 11.de5 de5 12.Qd2= 0.13) 9...Nbd7 10.h3 ed4 11.Nd4 Be6 12.Nd5+= 0.47; C3) 8...0-0 9.0-0 (9.d4 Qe7 10.0-0 c5 11.e4 cd4 12.ef5= 0.09; 9.d3 Qc8 10.h3 Nbd7 11.g4 Be6 12.Ng5= 0.19) 9...Re8 10.d3 Qc8 11.Ng5 h6 12.Nge4= 0.19.

6.g3 e5 7.Bg2 Bg4 A) 8.d4 A1) 8...e4 9.Nfd2 Bf5 10.Nc3 Qe7 11.e3 c6 12.0-0+= 0.50; A2) 8...Bf3 9.Bf3 (9.ef3 ed4 10.0-0 c5 11.bc6 Nc6 12.Re1= 0.19) 9...e4 10.Bg2 Qe7 11.0-0 0-0 12.Nc3+= 0.38; A3) 8...ed4 9.Nd4 (9.0-0 0-0 10.Nd4 Qc8 11.Nc3 Re8 12.b6= 0.03; 9.Bd4 0-0 10.0-0 Re8 11.h3 Be6 12.Ng5= 0.19) 9...Qc8 10.b6 c6 11.h3 Be6 12.Ne6= 0.19; B) 8.0-0 B1) 8...Qe7 9.Nc3 (9.Ng5 c6 10.f3 Bd7 11.Nc3 0-0 12.Qb3= 0.09; 9.d4 Nbd7 10.h3 Bf3 11.Bf3 e4 12.Bg2= 0.19) 9...0-0 10.d3 Nbd7 11.h3 Be6 12.Ng5+= 0.38; B2) 8...c6 9.d4 (9.h3 Be6 10.d4 e4 11.Ng5 Bc4 12.bc6= 0.03; 9.Nc3 0-0 10.h3 Be6 11.d3 h6 12.Qa4= 0.16) 9...e4 10.Ng5 cb5 11.Ne4 Ne4 12.Be4= 0.16; B3) 8...0-0 9.Nc3 (9.d4 ed4 10.Nd4 Qc8 11.Nc3 Re8 12.Qd2= 0.09; 9.d3 Nbd7 10.Nc3 Nc5 11.Ng5 Nfd7 12.Nge4= 0.09) 9...Nbd7 10.h3 Bf5 11.Re1 Nb6 12.d3= 0.13; C) 8.h3 C1) 8...Bf5 9.d4 (9.Nc3 0-0 10.d4 Qe7 11.de5 de5 12.g4= 0.25; 9.d3 0-0 10.0-0 h6 11.Nc3 Re8 12.g4= 0.19) 9...e4 10.Nfd2 d5 11.cd5 Qd5 12.Qa4+= 0.47; C2) 8...Be6 9.d4 e4 10.Nfd2 d5 11.cd5 Bd5 12.e3= 0.25.

6.g3 e5 7.Bg2 h6 A) 8.0-0 A1) 8...0-0 9.d4 (9.Nc3 Re8 10.d4 ed4 11.Nd4 Nbd7 12.Nd5= 0.03; 9.d3 Nbd7 10.Nc3 Nc5 11.Na4 Ne6 12.Qd2= 0.09) 9...e4 10.Nfd2 d5 11.Nc3 c6 12.cd5+= 0.38; A2) 8...a4 9.d4 (9.a3 Nbd7 10.d4 Qe7 11.Nc3 Nb6 12.de5= 0.09; 9.d3 0-0 10.Nc3 a3 11.Bc1 Nbd7 12.Nd2+= 0.44) 9...e4 10.Nfd2 Bf5 11.a3 Qe7 12.Nc3+= 0.44; A3) 8...Qe7 9.Nc3 (9.d4 e4 10.Ne1 0-0 11.Nc3 Nbd7 12.Nc2= 0.09; 9.d3 0-0 10.Nc3 Nbd7 11.Nd2 Nc5 12.Nde4= 0.09) 9...0-0 10.d4 Nbd7 11.Rb1 Re8 12.de5= 0.13; B) 8.Nc3 B1) 8...0-0 9.d3 (9.d4 ed4 10.Nd4 Nbd7 11.0-0 Nb6 12.Qb3= –0.03; 9.0-0 Re8 10.d4 ed4 11.Nd4 Nbd7 12.Nd5= 0.03) 9...g5 10.0-0 c6 11.Nd2 Be6 12.Ba3+= 0.34; B2) 8...Qe7 9.d4 (9.d3 0-0 10.0-0 Nbd7 11.Qd2 Nc5 12.Qe3= 0.00; 9.0-0 0-0 10.d4 Nbd7 11.e3 Re8 12.Rc1= 0.06) 9...0-0 10.0-0 Nbd7 11.Qc2 ed4 12.Nd4= 0.13; B3) 8...Nbd7 9.0-0 (9.d4 0-0 10.de5 de5 11.0-0 Qe7 12.Qc2= 0.13; 9.d3 0-0 10.0-0 Qe7 11.Qd2 Nc5 12.Qe3= 0.00) 9...Nb6 10.d3 0-0 11.c5 dc5 12.Ne5= 0.13; C) 8.d4 C1) 8...0-0 9.de5 (9.0-0 e4 10.Nfd2 d5 11.cd5 Qd5 12.Qc2+= 0.38; 9.Nc3 ed4 10.Nd4 Nbd7 11.0-0 Nb6 12.Qb3= –0.06) 9...Ng4 10.Nc3 Ne5 11.Ne5 Be5 12.Qd2+= 0.44; C2) 8...e4 9.Nfd2 Qe7 10.Nc3 e3 11.fe3 Qe3 12.b6+= 0.38; C3) 8...ed4 9.0-0 (9.Bd4 0-0 10.0-0 Be6 11.Nc3 c5 12.bc6= 0.22; 9.Nd4 0-0 10.0-0 Nbd7 11.Nc3 Nb6 12.Qb3= –0.03) 9...0-0 10.Bd4 Re8 11.Nc3 Qe7 12.e3= 0.22.

4.c4 Na6

5.a3 c5 6.b5 Nc7 7.Nc3 0-0 8.Qb3 b6 9.e3 Bb7 10.Be2 d5 11.cd5 Nfd5 12.0-0 e5 13.Rfd1 Qe7 14.Bc4 (14.Qc2 Rfd8= (14...e4 15.Ne1 a6=); 14.Rac1 Rfd8=) 14...Nc3 15.Bc3 Bf3 16.gf3 Rad8 17.Kh1 Ne8 18.Rg1 Nd6 19.Be2 Rd7 20.d3 Kh8 21.a4 f5 22.Qc2 Ne8 23.Rae1 Nc7 24.Rd1 Rfd8 25.Bd2 Qh4 26.Rg2 Nd5 27.Re1 Nb4 28.Bb4 Qb4 29.Rd1 Rd6 30.Rb1 Qh4 31.Rc1 Qe7 32.Re1 Bh6 33.Qc4 f4 34.Qe4= Qe6 35.Bf1 Rf8 36.Rg4 Qd5 37.Rh4 Qe4-/+ 38.fe4 Kg7 39.Rh3 fe3 40.fe3 Bg5 41.Kg1 Rdf6 42.Be2 Rf2 43.Rg3 Bh4 44.Rh3 Rh2! 45.Rh2 Be1 46.Bd1 h5–+ 47.Re2 Bg3 48.Kg2 Bh4 49.Kh3 Rf1 50.Bb3 g5 51.Kg2 Rb1 52.Bc2 Rc1 0–1. Boehnke,Hartmut (1970) – Egelhof,Hans Peter (2025), 2006.

5.Qb3 c5

6.a3 0-0 7.e3 b6 8.Nc3 Bb7 9.Be2 e5 10.d3 Qe7 11.0-0 Rfe8 12.b5 Nc7 13.e4 Nh5 14.g3 f5 15.Nd5 (15.ef5 gf5 16.Ne5 Nf4=) 15...Nd5 16.cd5 d6 17.Nd2 f4 (17...Nf6 18.f3=) 18.Qd1 (18.Bh5 gh5 19.Nc4 Rf8+=) 18...Rf8 19.Bg4 (19.Bh5 gh5 20.Qh5 a6+=) 19...Bh6 (19...a6 20.a4=) 20.Nf3 (20.Bh5!? gh5 21.Qh5+=) 20...Ng7 21.a4 Bg5 22.Nd2 h5 23.Bh3 Bh6 24.Kg2 Rf6 25.f3 fg3 26.hg3 h4 27.f4 hg3 28.fe5 de5 29.Rf6+= Qf6 30.Qf3 Bf4 31.Nc4 Qg5 32.Qg4+– Qf6 33.Rf1 Qe7? 34.Qg6+– Bc8 35.Bc8 Rc8 36.Rh1 Rf8 37.Nd6 (37.Nd6 Qd6 38.Qd6+–) 1–0. Lenic,L (2600) – AlHuwar,J (2265), 39th Olympiad Men, 2010.

6.a3 cb4 7.ab4 Qb6 8.Bc3=.

6.a3 b6 7.d3 (7.Nc3 Bb7=) 7...d6 (7...0-0 8.Nc3=) 8.g3= Bb7 9.Bg2 0-0 10.0-0 Re8 (10...Nc7 11.bc5 bc5 12.Qb7=) 11.Nc3 d5 (11...Qc8 12.Nd2+=) 12.cd5 (12.Nb5 e6+=) 12...Nd5 13.Ng5 (13.Rfc1 e6=) 13...e6= 14.Nge4 Nc3 (14...f5 15.Nd2=) 15.Bc3+= Bd5 16.Qb2 Bc3 17.Qc3 e5 (17...Be4 18.Be4 Rb8+=) 18.bc5 (better is 18.Nf6! Qf6 19.Bd5+=) 18...Nc5 19.Nf6 (19.Qb4 Rc8=) 19...Qf6+= 20.Bd5 Rac8 21.Rac1 Rc7 (21...Red8 22.Bg2+=) 22.Qb2 (22.Qd2 Qd6 23.e4 Ne6=) 22...Qd6+= 23.Bf3 e4 (23...Rec8 24.Qb4+=) 24.de4 Ne4 25.Rcd1 (25.Rc7 Qc7 26.Rd1 Qe7=) 25...Qe7 26.Rd3 Ng5 27.Re1 (27.Re3 Nf3 28.ef3 Qd7=) 27...Nf3 28.Rf3 ½–½. Fier,L Dos Santos (1950) – Santin,T Cirino Sobri (1640), Brazil Telecom Sesc Open, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 Na6)

6.b5 Nc7 7.d3 b6 8.e4 0-0 9.Be2 d6 10.Nbd2 e5 11.0-0 Ne6 12.Qd1 Nf4 13.Re1 Ne2 14.Re2 Nh5 15.h3 Nf4 16.Re1 (better is 16.Re3!?+=) 16...Nd3-/+ 17.Re3 Nb2 18.Qc2 Nc4! 19.Nc4 (19.Qc4 d5; 19.Nc4 Be6) 19...Be6 (19...d5 20.Nce5 d4 21.Rd3–+) 20.Rd1 Bc4 21.Qc4 Qc7 22.Qd5 Rfd8 23.Ng5 h6 24.Nf3 Rac8 25.Nh2 Qb8 26.Ng4 c4–+ 27.Rg3 Kf8 28.Rf3 Rd7 29.Rc1 Rc5 30.Qd2? Rb5 31.Nh6 Rc5 32.Rf7? Rf7 33.Nf7 Kf7 34.f4 Qc7 35.g4 c3 36.Qf2 ef4 37.Qf4 Kg8 38.Rc2 Be5 39.Qh6 Qh7 40.Qc1 Qh3 (40...Qh3 41.Qd1 Qg3 42.Kf1 Rc8–+) 0–1. Bousquet,Christophe – Popp,Tony, internet, 2005.

6.b5 Nc7 7.e4 0-0 8.Nc3 b6 (8...d6!?+=) 9.Bd3= Bb7 10.0-0-0 (better is 10.0-0!?=) 10...e6 (10...a6 11.ba6 Ra6 12.Rhe1–+) 11.e5 Ng4 12.Be4 Qc8 13.Rde1 Nf2 14.Rhf1 Ne4 15.Ne4 Be4 16.Re4 f6 (16...a6 17.a4-/+) 17.Rfe1? (17.ef6!? Bf6 18.Ne5+=) 17...fe5 (17...a6 18.ef6 Bf6 19.Bf6 Rf6 20.Ne5–+) 18.Ne5 d6 19.Nc6 Bb2 20.Kb2 Qd7 21.Qh3 a6 22.a4 ab5 23.ab5 Ra4 24.Re6 Ne6 25.Re6 Qg7 (25...Rc4?? 26.Rg6 hg6 27.Qd7+–) 26.Kc2?? (26.Qc3 Rc4 27.Qg7 Kg7 28.Rd6–+) 26…Ra2 (26...Ra2 27.Kd3 Qa1–+) 0–1. Muenster,Erich – Muehlbauer,Andreas, Regionalliga NO, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 Na6)

5.b5 Nc5

6.Nc3 0-0 (6...d6 7.Qc2=) 7.e3 c6 (7...d6 8.h3=) 8.d4 Nce4 9.Bd3 d5 (9...Nc3 10.Bc3 Qc7 11.bc6 Qc6 12.d5=) 10.0-0 (10.bc6 bc6 11.Be4 Rb8 12.Bg6 fg6+=) 10...Bg4 11.cd5 (11.Be2 dc4 12.Ne4 Ne4 13.bc6 Rb8=) 11...cd5 (11...Bf3 12.gf3 Nc3 13.Bc3 cb5 14.Bb5 Qd5 15.Qe2+=) 12.Rc1 (12.Be2 Qd7 13.Ne4 Ne4=) 12...Rc8 (12...Bf3 13.gf3 (13.Qf3?? Nd2 14.Qf4 Nf1 15.Bf1 Qa5–+) 13...Nc3 14.Bc3=) 13.h3 Bf3 14.gf3 Nd6 (14...Nc3 15.Rc3 Qd7 16.Kg2+=) 15.Qb3+= Nc4 (15...e6 16.Ba3=) 16.Rfd1 (better is 16.Nd5 Nd5 17.Bc4+/-) 16...Nb2 17.Qb2 Qd6 18.Ne2 Nd7 19.f4 Nb6 20.Rc8 Rc8 21.Rc1 Rc1 22.Qc1 e6 23.Qc3 Bf8 24.Kg2 Qa3 25.Qa3 Ba3 26.Kf3 Kf8 27.Nc3 Bb4 28.Nd1 Ke7 29.Ke2 Kd7 30.f3 Kc7 31.e4 Kd6 32.Bc2 ½–½. Melich,Jindrich (2130) – Ptak,Pavel (2190), CZE–chT2J, 2003.

6.d4 Ne6 (6...Nce4 7.Nc3+=) 7.e3= c6 (7...a6 8.Nc3=) 8.a4 d5 9.Nc3 a6 (9...0-0 10.Rc1=) 10.Bd3 (10.Be2 ab5 11.ab5 Ra1 12.Qa1 0-0+=) 10...0-0= 11.0-0 ab5 (11...c5!?=) 12.ab5+= Ra1 13.Qa1 Bd7 (13...c5 14.dc5 Nc5 15.Rd1 Nd3 16.Rd3+=) 14.c5 (14.cd5 Nd5 15.Nd5 cd5+/-) 14...Nc7 (better is 14...cb5!? 15.Qa3 Nc7+=) 15.b6+/- Nb5 16.Nb5 cb5 17.Qa5 Qe8? (better is 17...Qa8!? 18.Qd2 Ne4+/-) 18.Ne5+– Bc6 19.Rb1 Qa8 (19...Bh6 20.Rc1+–) 20.Ra1 (20.Nc6 bc6 21.Ra1 Qb8+–) 20...Qe8 (20...Qa5 21.Ra5 Nd7 22.Nc6 bc6 23.b7+–) 21.Bc3 (21.Nc6!? Qc6 22.Bb5 Qc8+–) 21...Nd7 22.f4?? (better is 22.Nc6 bc6 23.h4+–) 22...Ne5+/- 23.fe5 (23.de5 f6+=) 23...Qd7 24.Rb1 The pressure on the isolated pawn grows (24.Qa2 Qe6=) 24...f6 25.ef6 Rf6 (25...Bh6!? 26.Re1 Rf6+=) 26.Bb5+= Qe6 (26...Bh6 27.Bd2+/-) 27.Bd2 Bh6 28.Re1 Bb5 29.Qb5 Qf7?? (29...Bg5 30.Qd3+/-) 30.Rf1 (better is 30.c6 Qe6 31.cb7+–) 30...Rf1+/- 31.Qf1 Qe8 32.Qf3 e6 33.Be1 Bg7 34.Bg3 e5?? (better is 34...Qb5+/-) 35.Qd5+– Kh8 36.Be5 Be5 37.Qe5 Qe5 38.de5 Kg7 (38...g5 39.c6! g4 40.cb7 h6 41.b8Q Kh7 42.b7 Kg7 43.Qd8 Kg6 44.Qf6 Kh5 45.b8Q g3 46.hg3 Kg4 47.Qg6) 39.c6! bc6 40.b7 (40.b7 c5 41.b8Q Kf7 42.Qd6 Kg7 43.Qe7 Kg8 44.e6 h5 45.Qf7 Kh8 46.e7 c4 47.e8Q) 1–0. Nikolic,Jovane (1790) – Maluf,Feres Camargo, 9th Sao Paulo Brazil, Karman Cup, 2016.

6.Bf6 Bf6 7.d4 Ne6=.

4.c4 b6

5.g3 a5 6.b5 d5 7.Bg2 Ra7 8.cd5 Qd5 9.Nc3 Qh5 10.0-0 0-0 11.Qa4 Rd8 12.Rfd1 Bh3 13.Bh3 Qh3 14.Qc4 e6 15.Qf4 h6 16.Ne5 Nbd7 17.Ne4 a4 18.Nf6 Nf6 19.Qf3 a3 20.Bc3 Raa8 21.Nc6 Ng4 22.Bg7 Kg7 23.Nd8 Qh2 24.Kf1 Rd8 25.Qg2 Qh5 26.Rac1 Qb5 27.Rc7 Kg8 28.Qb7 Qf5 29.Qb6 Qe4 30.Qb7 Qf5 31.Qa7 Qh5 32.Kg2 Qh2 33.Kf3 Kh8 34.Qc5+– Qh3 35.d3 Kg7 36.Rg1 Rd5 37.Qc3 e5 38.Qb3 e4 39.Ke4 Rf5 40.Qc3 Kh7 41.Kd4 Qh2 42.Qe1 Qh5 43.f4 Rd5 44.Kc3 Rb5 45.Rf7 Kg8 46.Rc7 Rb8 47.Kd2? Qa5–+ 48.Rc3 Rb2 49.Kd1 Qb6 50.d4 Qd4 51.Kc1 Ra2 52.e3 Ra1 53.Kc2 Qe4 54.Kb3 Qb7 55.Kc4 Re1 56.Re1 a2 57.Rcc1 Ne3! 58.Kc3 Nd5 (58...Nd5 59.Kc4 Nf6–+) 0–1. Fournier,Frederic (2570) – cacasparov(C) (2615), Echecs21 (1/5), 2003.

5.g3 c5 6.a3 Bb7 7.Bg2 0-0 8.0-0 Nc6 9.Qb3 Rb8 10.d3 d6 11.Nbd2 e5 12.e3 Nd7 13.Ne4 Qe7 14.Nc3 f5 15.Nd2 Nf6 16.Nd5 Qd7 17.b5 Ne7 18.Nf6 Bf6 19.Bb7 Rb7 20.a4 h5 21.e4 h4 22.Qd1 Qe6 23.Qe2 Nc8 24.f3 hg3 25.hg3 Rh7 26.Kg2 Kg7 27.Rh1 Rfh8 28.Rh7 Rh7 29.a5 f4 30.g4 Qe8 31.Rh1 Rh1 32.Kh1 ba5 33.Qd1 Bd8 34.Bc3 Bb6 35.Qa1 Qd8 36.Kg2 Qh4 37.Nf1 Qd8 38.Nd2 Qh4 39.Nf1 Qd8 40.Be1 Ne7 41.Bh4 Kf7 42.Nd2 Qc7 43.Nb1 Qc8 44.Nc3 Qh8 45.Be1 g5 46.Ne2 Qd8 47.Nc1 Ng6 48.Nb3 Qh8 49.Nd2 Nh4 50.Kf2 Ng6 51.Kg2 Nh4 52.Kf2 Ng6 53.Kg2 ½–½. Lintchevski,D (2560) – Neuman,P (2475), Pardubice CZE, 2012.

5.d4 Bb7

6.e3 0-0 7.Nbd2 d6 8.a3 Nbd7 9.Bd3+= e5 10.e4 ed4= 11.Nd4 Ne5 12.Qe2 Nd3-/+ 13.Qd3 Ne4! 14.0-0 Nd2 15.Qd2 Qh4 16.Ne2 Bb2–+ 17.Qb2 Qc4 18.Nd4 c5 19.Rac1 0–1. Klein,Reinhard – Herms,Axel, Bad Wiessee, 1998.

6.e3 0-0 7.Be2 c5 8.bc5 bc5 9.0-0=.

6.e3 0-0 7.Be2 Ne4 8.Nbd2 d5 (8...a5 9.b5+=) 9.0-0 c5 10.bc5 bc5 11.Qb3 Nd2 (11...Bc6 12.Ne4 de4 13.Ne5+=) 12.Nd2 (12.Qb7 Nf1 13.Qa8 Nh2 14.Nh2 Qb6-/+) 12...Ba6 (12...Qb6!?+=) 13.dc5+/- dc4 14.Nc4 Nc6 (14...Bb2 15.Qb2 Nd7 16.Qa3 Bc4 17.Bc4+/-) 15.Bg7 Kg7 16.Rfd1 Qc7 17.Qa3 Bc4 18.Bc4 Ne5 19.Be2 Nd7 20.Rac1 Rfc8 21.Ba6 Rd8 22.c6 Nb6 23.Bb7 Rd1 24.Rd1 Rd8 25.Rd8 Qd8 26.g3 Qb8? 27.Qe7+– Nd5 28.Qd7 Nf6 29.Qd4 Qc7 30.Qa7 Ne8 31.Qd4 Kg8 32.Qc5 Nd6 33.Qb4 Qb8 34.a4 1–0. ManchesterChess – notloBrooks, ChessWorld.net, 2010.

5.e3 Bb7

6.d4 d6 7.Nc3 Nbd7 8.Bd3 c5 9.b5 a6 10.d5 ab5 11.Nb5 0-0 12.Qc2 Ba6 13.a4 Bb5 14.ab5 Ra1 15.Ba1 Qa8 16.0-0 Qb7 17.Bc3 Ra8 18.Ra1 Ra1 19.Ba1 Qa7 20.Bc3 e6 21.e4 e5 22.h3 Ne8 23.Nd2 Nc7 24.Qb2 f6 25.f4 ef4= 26.Nf3 Ne5 27.Ne5 fe5 28.Be2 Qa4 29.Kh2 Ne8 30.Bg4? h6 31.Be6 Kh7 32.Qe2 Nf6 33.Be1 g5 34.Bc3 Qb3 35.Be1 Qb1 36.Bf5 Kg8 37.Bf2 h5 38.Qf3? Qa2 39.Be6 Kh7 40.Bf5 Kh6 41.Bg1 Qc4 42.Qa3 g4 43.hg4? Ng4 44.Kh1 Qf1 45.Qa8 Nf2 46.Kh2 f3 47.gf3 Nd3 48.Qe8?? Qe2 49.Kg3 Qe1 50.Kg2 Nf4 51.Kh2 Qh4 52.Bh3 Qh3# (52...Nh3?! 53.Qe6 Bf6 54.Qh3 Qh3 55.Kh3–+) 0–1. atanas70 (1690) – rukinson1 (1670), kurnik, 2012.

6.Be2 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7).

6.Be2 d6 7.0-0 e5 8.d3 0-0 9.Nc3 Nbd7 10.a3 Nh5 11.Nd2 f5 12.Bh5 gh5 13.Qh5 Kh8 14.f4 Nf6 15.Qh4 Rg8 16.Nf3 ef4 17.Ng5 Qe7 18.ef4 h6 19.Rae1 Qd7 20.Nd5! (20.Nd5 Nh7 21.Qh6 Bb2 22.Re7+–) 1–0. Csom,Istvan (2475) – Svendsen,Odin, Peer Gynt Gausdal, 1993.

5.e3 c5

6.a3 0-0 7.Be2 Na6 8.Qb3 d5 9.b5 Nc7 10.d4 Ne4 11.0-0 Bb7 12.a4 cd4 13.Bd4 Bd4 14.Nd4 Nc5 15.Qb2 Qd6 16.Nd2 Rfd8 17.N4f3 Rac8 18.a5 N7e6 19.cd5 Bd5 20.h3 Qb8 21.Rfd1 f6 22.Qb4 Kf8 23.ab6 ab6 24.Bc4 Bb7 25.Be2 Nd3 26.Qa3 Ndc5 27.Qb4 Nd3 28.Qa3 Ndc5 ½–½. Hasangatin,R (2480) – Socko,B (2585), TCh–CZE 2001–2 (CZE) (7), 2002.

6.a3 0-0 7.Be2 Bb7 8.0-0 d6 9.d4 Nfd7 10.bc5 dc5 11.Nc3 Na6 12.Nb5 cd4 13.ed4 Nc7 14.Nc7 Qc7 15.Qd2 e6 16.Rad1 Ba6 17.Qc2 Rfd8 18.Rfe1 Rac8 19.Rc1 Bh6 20.Nd2 b5 21.d5 ed5-/+ 22.Qc3 Qe5! 23.Qb4 Qf4 24.cb5 Qb4 25.ab4 Bd2 26.ba6 Rc1 27.Rc1 Bc1 28.Bc1 d4 29.f4 Rc8 30.Bb2 Rc2 31.Bd4 Re2 32.Ba7 Ra2 33.b5 Rb2 34.Bd4 Rb5 35.a7 Ra5 36.g4 Ra2 37.h4 Kf8 38.g5 Ke7 39.Kf1 Ke6 40.Bf2 Kf5 41.Kg1 Kf4 42.Bd4 Ne5 43.Bc5 Nf3 44.Kf1 Nh4 45.Bd4 0–1. EXchess 3.11 – Doctor? 3.0, 2004.

6.a3 0-0 7.Be2 e6 8.0-0 (8.d4 Bb7+=) 8...d6 (8...Bb7 9.d4+=) 9.d4 Bb7 10.Nc3 cd4 (10...a6 11.Qd3+=) 11.Nd4 a6 ½–½. Ivanov,Igor V – Henley,Ron W, It New York (USA), 1983.

6.a3 Na6 7.Qb3 0-0 8.Be2 d6 9.d4 e6 10.0-0 Qe7 11.Nc3 Bb7 12.Rfd1 Rfd8 13.Rd2 Ne4 14.Ne4 Be4 15.Rad1 cd4 16.Bd4 e5 17.Bb2 Nc7 18.Ne1 Qe6 19.b5 Bb7 20.Nc2 Qe7 21.Nb4 Ne6 22.Nd5 Bd5 23.Rd5 e4 24.Bg7 Ng7 25.Qb4 Ne8 26.Qd2 Rac8 27.a4 Rc7 28.Rd4 Rcd7 29.f4 Ng7 30.g4 Ne6 31.Re4 f5 32.Re6 Qe6 33.Bf3 Qf6 34.g5 Qg7 35.h4 h5 36.Kf2 Kh7 37.Bc6 Re7 38.Rb1 Re6 39.Bd5 Re7 40.Bc6 Re6 41.a5 Re7 42.Rb2 Re6 43.Ra2 Qc7 44.Ra3 ba5 45.Qa5 Qa5 46.Ra5 Re7 47.Ra3 Rc7 48.Ke2 Kg7 49.Kd3 Kf7 50.Kd4 Re7 51.Rd3 Kf8 52.Kc3 Rc7 53.Kb4 Re7 54.Ka5 Rc7 55.Ka6 Ke7 56.Rd4 Rdc8 57.Bb7 Rb8 58.Bd5 Re8 59.e4 fe4 60.Bc6 Rec8 61.Re4 Kf8 62.Re6 Rc6 63.bc6 Rc6 64.Kb5 Rc5 65.Kb4 a5 66.Kb3 d5 67.cd5 Rd5 68.Rg6 Rf5 69.Rh6 Rf4 70.Rh5 Kg7 71.Rh6 a4 72.Kb2 Rg4 73.Ka3 Rf4 74.h5 Rh4 75.Rg6 Kh7 76.Rh6 Kg7 77.Rg6 Kh7 ½–½. Macieja,B (2610) – Socko,B (2585), Bermuda GM–A (Southampton BER) (2), 2002.

6.a3 Nc6 7.Qb3 0-0 8.Be2 e6 9.0-0 Qe7 10.Bc3 d5 11.b5 Na5 12.Ba5 ba5 13.Nc3 Bb7 14.Rab1 Rfd8 15.cd5 ed5 16.d4 Ne4 17.Na4 c4 18.Qb2 Rac8 19.Nc3 Bf8 20.Ra1 a6 21.Rfc1 ab5 22.Qb5 Nc3 23.Rc3 Qc7 24.Qa4 Bc6 25.Qc2 Bd6 26.g3 Rb8 27.Rc1 Qe7 28.Ra1 Rb7 29.Nd2 Rdb8 30.Bf3 Qd7 31.e4 Bf8 32.ed5 Ba4 33.Qe4+/- Re8 34.Qf4 Bd6 35.Qf6 Be7 36.Ne4 Bb3 37.Qf4 Rb6 38.Re3 Rf8 39.Nc5 Qd8 40.Rae1 Bg5-/+ 41.Qe5 Be3 42.Re3 Bc2 43.Bg4 Rd6 44.Nb7= Rd5 45.Nd8 Re5 46.de5 Rd8 47.e6 Re8 48.e7 Ba4 49.Bf3 c3 50.Rc3 Re7 51.Rc5 Ra7 52.Bd5 Kg7 53.f4 Bd1 54.Kf2 a4 55.Ke1 Bb3 56.Rb5 Re7 57.Kf2 Bd5 58.Rd5 Rb7 59.Ra5 Rb2 60.Kg1 Ra2 61.Ra4 h5 62.Ra7 Kf6 63.Ra5 Ke6 64.h3 Kf6 65.a4 Kg7 66.Kf1 Kf6 67.g4 h4 68.g5 Kg7 69.Kg1 Ra3 70.Kg2 Rg3 71.Kf2 Rh3 72.Ra8 Ra3 73.a5 Ra4 74.Kf3 h3 75.Kg3 Rf4 76.Kh3 Ra4 77.a6 Kh7 78.Kg3 Kg7 79.Kf3 Ra5 80.a7 Ra4 81.Ke3 Kh7 82.Kd3 Kg7 ½–½. Khurtsidze,N (2435) – Khotenashvili,B (2440), 68th ch–GEO w, 2011.

6.a3 Nc6 7.b5 Na5 8.Be2 Bb7 9.0-0 d5 10.cd5 Bd5 11.Nc3 Nc4 12.Nd5+/- Nb2 13.Nf6 Bf6 14.Qc2 c4 15.Rab1 Nd3 16.Qc4 Nc5 17.d4 Nd7 18.Rbc1 0-0 19.Qd5 Rb8 20.Rc6 e6 21.Qb3 Qe7 22.Rfc1 Ra8 23.Rc7 Qd6 24.R1c6 Qe7 25.d5 Rfe8 26.de6 fe6 27.Qd1 Red8 28.Rd6 Rac8 29.Rc8 Rc8 1–0. Fritz 8 – Comet B25, 2004.

5.g3 Bb7

6.Bg2 c5 7.bc5 bc5 8.0-0 0-0 9.d3 (9.Nc3 Nc6+=) 9...d6 10.Na3 Nc6 11.Rb1 Rb8 12.Bc3 Ba8 (12...Ng4 13.Bg7 Kg7 14.Qd2=) 13.Qd2 Qd7 14.Nc2 Qc7 (14...Ng4 15.Bg7 Kg7 16.Nh4=) 15.Ne3+= e6 16.Ng5 (16.Rfd1 Ne7+=) 16...Nd4= 17.Ba8 Ra8 18.Bd4 cd4 19.Nc2 Nd7 (19...e5 20.Rfc1=) 20.Nf3+= e5 21.Nb4 Nf6 (21...Nb6 22.Rfc1+=) 22.Rb3 (22.Na6!? Qd7 23.Qa5+=) 22...a5= 23.Nc2 d5 24.Na3 dc4 25.Nc4 Nd5 26.Na3 (26.Rfb1 Nc3 27.R1b2 e4+=) 26...Rfc8 27.Qb2 Nc3 28.Rb7 (28.Nb5 Qc5 29.Nc3 dc3+=) 28...Qc5 29.Re1 Qd5 30.Nd2? (30.Ng5 Bf8 31.Nc4 e4–+) 30...Qa2 (better is 30...Bf8!? 31.Ndc4 Bb4 32.Rb4 ab4 33.Qb4 Rcb8–+ (33...Na2?! 34.Qd2 Nc3 35.Nb6–+)) 31.Qa2-/+ Na2 32.Nac4 (32.Ndc4 a4-/+) 32...Nc3–+ 33.Nd6 (33.Kg2 a4 34.Ra1 Rcb8 35.Rb8 Rb8–+) 33...Rf8 34.N2c4 Ra6 (34...a4 35.Ra1 Ne2 36.Kg2–+) 35.Kf1 (35.e4 a4 36.Ra1 f6-/+) 35...a4 36.Ra1 f6 (36...f5-/+) 37.Nb6 (better is 37.Ke1!?-/+) 37...a3–+ 38.Ndc4 (38.Ne4 Ne4 39.de4 Rf7 40.Rb8 Bf8–+) 38...a2 39.Nd7 (39.e4 f5 40.Nd7 Re8–+) 39...Re8 (39...Rfa8 40.Nc5 R6a7 41.Rb3–+) 40.Ndb6 Rd8 41.Nd7 (41.f3 f5–+) 41...Rda8 42.Ncb6 (42.Nc5 R6a7 43.Rb3–+) 42...R6a7 43.Ra7 Ra7 44.Nc5 (44.Ke1 Kf7–+) 44...Ra5 45.Nca4 Rb5 (45...Na4?! 46.Ra2 Nb6 47.Ra5+=; 45...Ra4?! 46.Na4 Na4 47.Ra2-/+) 46.Nc3 dc3 (46...Rb6?! 47.Na2 Ra6 48.Ke1-/+) 47.Ra2 Rb6 48.Ra8 (48.Rc2 Rb3–+) 48...Kf7 49.Ra7 (49.Rc8 Rb3 50.h3 Bf8–+) 49...Ke6 50.Rc7 Rb3 51.e3 (51.Rc6 Kd5 52.Rc8 Bf8 53.e4 Ke6 54.Rf8 c2–+) 51...Bf8 52.Ke2 (52.Kg2–+) 52...Rb2 53.Kd1 (53.Kf3 c2 54.Ke4 f5 55.Kf3 Kd5 56.Rc2 Rc2 57.e4 fe4 58.de4 Kd4–+) 53...Rd2 54.Ke1 (54.Kc1 Ba3 55.Kb1 Rb2 56.Ka1 Rf2–+) 54...Bb4 55.Rc4 c2 56.e4 Rd1 (56...Rd1 57.Ke2 c1Q 58.Rc1 Rc1–+) 0–1. Malkoc,Tilen (1770) – Schlegel,Igor (1855), European Youth Chess Championship U12, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 b6 5.g3 Bb7)

6.Bg2 d6 7.0-0 e5 8.d3 0-0 9.Nbd2 a5 10.a3 Qe7 11.Qc2 Nc6 (11...Nbd7=) 12.ba5 (12.Bc3!?=) 12...Ra5=+ 13.Nb3 (13.a4 Raa8=+) 13...Raa8 14.Nfd2 Nd7 (14...h5 15.Nf3=+) 15.e3 Nc5 (15...f5 16.Bc3=+) 16.Ra2 (16.Nc5 dc5 17.Ne4 Rfb8=) 16...Nb3 (16...Na4 17.Ba1=+) 17.Qb3 Na5 18.Qb5 Bg2 19.Kg2 Nb7 20.Nb3 Nc5 21.Rd1 (21.Nc5 dc5 22.Rd1 Rad8=+) 21...Na4 (21...c6 22.Qb4-/+ (22.Qb6? Rab8 23.Qc6 Rb3–+)) 22.Ba1 e4 23.d4 Qf6 (23...h5 24.Nd2=+) 24.Nd2= Qe7 25.Qc6 (25.Nb3 h5=+) 25...f5 26.Rb1 (26.Nb1 Rfd8=+) 26...Rfd8 27.f3 ef3 (27...Qd7 28.Qd7 ef3 29.Kf3 Rd7 30.Nb3=+) 28.Qf3 (28.Nf3 Re8=+ (28...Qe3 29.Re1 Qb3 30.Rae2+–)) 28...Re8 29.Kf2 (29.Re1 Qd7=+) 29...c5 (29...h5 30.Re1-/+) 30.Nb3 (30.Rb3 Ra5 31.dc5 Rc5 32.Bg7 Kg7=+) 30...Qf7-/+ 31.Nd2 (31.Qd5 Qd5 32.cd5 Bh6-/+) 31...Bh6 32.Rb3 b5! 33.Qd5? (33.Rb5 Be3 Double attack (33...Re3 Deflection); 33.cb5 c4 Passed pawn) 33...Qd5–+ 34.cd5 c4 35.Rb5 Be3 36.Kf3 (36.Kf1 Bd2 37.Rd2 Reb8 38.Rb8 Rb8–+) 36...c3 (better 36...Bd2!? 37.Rd2 Re1–+) 37.Nb3-/+ Bh6 38.Rc2 Reb8 (38...Rab8 39.Rb8 Rb8 40.Na5–+) 39.Rb4 Rc8 40.Rb7 Rcb8 41.Rb4 Re8 (41...Rb4 42.ab4 Re8 43.Kf2-/+) 42.Kf2 (42.Rb5 Ra7-/+) 42...Re3 (42...Re7 43.Nc1-/+ (43.Bc3?? Rc7–+)) 43.Rc4 (43.Nc1 Re7-/+) 43...Nb6 (43...Rd3 44.Bc3 Nb6 45.Rc6 Nd5 46.Nc1 Bc1 47.Rc1 Ra3 48.Be1-/+) 44.R4c3 (44.Rc6 Rb8 45.Bc3 Nd5=+) 44...Nd5 (44...Rc3 45.Bc3 Ra3-/+) 45.Re3 (45.Rc8!? Rc8 46.Rc8 Kf7 47.Rb8-/+) 45...Be3–+ 46.Kf3?? (better 46.Ke2 Ra3 47.Rb2–+) 46...Ra3 47.Rc8 (47.Ke2 Rb3 48.Rb2 Rb2 49.Bb2 Kf7–+) 47...Kf7 48.Rb8 Bg5 (better 48...Ra2 49.g4 Rf2 50.Kg3 fg4 51.Rb7 Ke6–+) 49.Bb2-/+ Ra4 50.h4 (50.Nc1 Rb4 51.Rb4 Nb4-/+) 50...Be7 (50...Bf6 51.Rb7 Ke6 52.Rb8-/+ (52.Rh7?? Rb4 53.Nc1 Rb2–+)) 51.Rb7 Rb4 52.Rb4 Nb4 53.Bc3 Nc2 (better 53...Nd5 54.Be1 Bf6-/+) 54.Kf4? (better 54.d5-/+) 54...Ke6–+ 55.Na1 (55.Nc1–+) 55...Na3 (better 55...Na1!? 56.Ba1 Bf6 57.Bb2–+) 56.Ke3 (56.Bb2 Nc4 57.Bc3 Nb6–+) 56...Kd5–+ 57.Kd3 Nb5 58.Bb2 Nc7 (58...f4 59.gf4 Bh4 60.Nc2–+) 59.Nc2 (59.Bc3 Ke6 60.Be1 Bf6-/+) 59...Ne8 (59...f4 60.gf4 Bh4 61.Bc3–+) 60.Nb4 Ke6 61.d5 Kf7 (61...Kd7 62.Bc1-/+) 62.Kc4 (62.Bc1 Nf6 63.Ke2 Ne4-/+) 62...Bf6 63.Bd4 (63.Bc1 Be5–+) 63...h6 (better 63...Bd4!? 64.Kd4 Nf6–+) 64.Be3-/+ g5 65.hg5 hg5 66.Kb5 (66.Nd3 Kg6-/+) 66...Kg6-/+ 67.Kc6? (better 67.Nd3!?-/+) 67...Be5–+ 68.Bf2 Nf6 (better 68...f4!? 69.gf4 gf4–+) 69.Nd3=+ Ng4 (69...f4!? 70.gf4 gf4-/+) 70.Ne5= de5 71.Be1 (better 71.d6!? Nh6 72.d7=) 71...f4 72.gf4 (better 72.d6!? Nf6 73.Bf2-/+) 72...ef4–+ 73.d6 Ne5 74.Kd5 Kf5 75.Bf2? (75.Bc3 Nd7 76.Kd4–+) 75…g4 0–1. Garcia Franco,Juan Carlos (1840) – Bhavik,Dave (1770), 10th Calgary Int, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 b6 5.g3 Bb7)

6.Bg2 0-0

7.0-0 a5 8.b5 c5 9.bc6 Nc6 10.d3 Rb8 11.Na3 Na7 12.Rb1 d6 13.Qd2 Ba8 14.Rfc1 e5 15.Nh4 Bg2 16.Ng2 b5 17.cb5 Nb5 18.Nc4 a4 19.e3 Nd7 20.Na5 Na7 21.Ba3 Rb1 22.Rb1 Nc5 23.Nc4 Nc6 24.Qc2+/- Ne6 25.Nd6 Ncd4? 26.ed4 Nd4 27.Qd1 Qa8 28.Ne1 Rd8 29.f3 Bf8 30.Nc4 Ba3 31.Na3 Qd5 32.Rb2 Nf5? 33.Qe2 Qc5=+ 34.Kh1 Qa3 35.Qe5+= Qf8 36.Re2 Nd6 37.Qa5 Re8 38.Re8 Qe8 39.Qd2 Nb5 40.Nc2 Qc6 41.Kg2 Nc3 42.Ne3 Qe6 43.Nc4 Nb5 44.Kf2 Qh3 45.Kg1 Nd4 46.Qe3 Qd7 47.Ne5 Qa7 48.Kg2 Qb6 49.Nd7 Qb2= 50.Kh3 Ne6 51.Qe5 Qe5 52.Ne5+/- Nd4 53.Kg2 a3 54.Nc4 Nc2 55.Kf2 Nb4 56.d4 Na2 57.Na3 Kf8 58.Ke3 Nc3 59.Kd3 Nd5 60.Nc4 f6 61.Ne3 Nc7 62.Kc4 Ne8 63.Kc5 Ke7 64.d5 Kd7 65.Nc4 h5 66.Nb6 Kc7 67.Nc4 Kd7 68.d6 g5 69.Kd5 Ng7 70.g4 hg4 71.fg4 f5 72.Ne5 Kd8 73.Kc6 Ne6 74.gf5 Nd4 75.Kd5 Nf5 76.Nf7 Kd7 77.Ne5 Kd8 78.d7 g4 79.Ke6 Nd4 80.Kd6 Nf5 81.Kd5 Ke7? 82.Kc6 Nd4 83.Kb7 Ne6 84.Kc8 Kf6 85.Ng4 Kg5 86.Nf2 Kh4 87.d8Q Nd8 88.Kd8 Kg5 89.Ke8 Kg6 90.Kf8 Kh7 91.Ng4 Kh8 92.Kf7 Kh7 93.h4 Kh8 94.Kg6 Kg8 95.Ne5 Kh8 96.Nf7 Kg8 97.h5 1–0. Meyer,B (2160) – Tellenbach,E (1795), Lenk Open Lenk SUI, 2011.

7.0-0 c5 8.b5 a6 9.a4 e6 (9...ab5 10.ab5 Ra1 11.Ba1=) 10.d3 (10.Nc3 d6=) 10...d5 11.Nbd2 Nbd7 12.Rb1 ab5 13.cb5 (13.ab5 Qc7=+) 13...Qc7 14.Qc2 Rfd8 15.e4 Qb8 16.Rfe1 Ra7 17.Ra1 h6 (17...c4 18.dc4 de4 19.Ng5=+) 18.h3 c4 19.ed5 cd3 20.Qd3 Bd5 21.Qe3 (21.Nb3 Rc8=+) 21...Qa8-/+ 22.Nh4 (22.Bd4 Rc8-/+) 22...g5 (22...Bg2 23.Ng2 Nd5 24.Qa3 Bb2 25.Qb2–+) 23.Nhf3-/+ Ra4 24.Ra4 (24.Bd4 Rc8-/+) 24...Qa4 25.Ng5? (better 25.Bf1-/+) 25...hg5–+ 26.Bd5 ed5 27.Qg5 Qb5 28.Bf6 (28.Rb1 Qc5 29.Rc1 Qb4–+) 28...Nf6 29.h4 (29.Kg2 Qc6–+) 29...Re8 30.Rb1 (30.Re8 Qe8 31.Kf1 Qb5 32.Kg2 Qe2–+) 30...Qc6 (better 30...Qe2!? 31.Rf1–+) 31.h5 Ne4 32.Ne4 de4 33.Qe3 (33.Rc1 Qd6 34.Re1 Re5–+) 33...Qc5 34.Qe2 (34.Kg2 Bd4 35.Qe2 e3–+) 34...e3 35.f4 (35.Kg2 Qd5 36.Qf3–+) 35...Rd8 36.Qg4 (36.Re1 Bc3 37.Qg4 Kh7–+) 36...e2 (36...Qc2 37.Rc1 Qc1 38.Kg2 Rd2 39.Qe2 Re2 40.Kf3 f5 41.g4 Rf2 42.Kg3 Qg1 43.Kh4 Qg4) 37.Kg2–+ Qd5 38.Kf2 (38.Kh3 Rd6 39.Qc8 Kh7 40.Qc2 Kh8 41.Qc8 Rd8 42.Qg4–+) 38…Qd4 (38...Qd4 39.Kf3 Qd3 40.Kg2 Qe4 41.Kh3 f5 42.Qg5 Qb1 43.Qf5 Qf5 44.Kg2 e1Q 45.h6 Rd2 46.Kf3 Qee4) 0–1. Janacek,J (1985) – Pribyl,Jo (2260), Golden Prague Open, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 b6 5.g3 Bb7 6.Bg2 0-0)

7.0-0 Nc6 8.a3 d6 (8...a6 9.Nc3+=) 9.d4+= e6. bschardein (2505) – shakuni (1975), net–chess.com, 2005.

7.0-0 d6 8.Qb3 Nbd7 9.d3 e5 10.Nbd2 Qe7 11.a4 a5 12.ba5 (12.b5 Nc5 13.Qc2 Rae8=) 12...Ra5+= 13.Bc3 Nc5 14.Qc2 e4 (14...Ra6 15.a5+=) 15.Nh4 ed3 16.ed3 Bg2 17.Rfe1 Qd7 (better is 17...Be4 18.Ba5 Bd3 19.Re7 Bc2=) 18.Kg2 (better is 18.Ba5!? Bc6 19.Bc3+=) 18...Ra4-/+ 19.Ra4 Na4 20.Ba1 Qc6 21.Kg1 Ra8 22.Ng2 Qc5 23.Bf6 Bf6 24.Ne4 Qf5?? (better is 24...Qd4-/+) 25.Ne3+/- Qf3 26.Nd5 Bd8 27.Ra1 b5 28.cb5 Nb6 29.Ra8 Na8 30.Qc6 (better is 30.b6 Nb6 31.Nb6+–) 30...Qd3+= 31.Ndf6 Kg7 32.Qa8 (32.Ne8 Kf8 33.N4f6 Bf6 34.Qa8 Be5+=) 32...Bf6= 33.Nf6 Kf6 34.Qd8 Ke6 35.Qe8 Kf6 36.Qd8 Kg7 37.Qc7 ½–½. Bergersen,Per A (1990) – Muratoglu,Salih (2055), European Senior Teams, 2012. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 b6 5.g3 Bb7 6.Bg2 0-0)

7.0-0 d6 8.d3 Nbd7 9.Nbd2 c5 10.Qa4 cb4 11.Qb4 Qc7 12.Rab1 Rfc8 13.a3 Nc5 14.Bf6 Bf6 15.d4 Ne4 16.e3 e5 17.Rfc1 Rab8 18.Nb3 ½–½. Albuquerque Junior,WS (2160) – Carmo e Silva,JW (1790), ch–Cearense, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 b6 5.g3 Bb7 6.Bg2 0-0)

7.0-0 d6 8.d3 Nbd7 9.Nbd2 c5 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 Qa8 14.Qa8 Ra8 15.Ra1 Ra1 16.Ba1 Ne8 17.Bg7 Kg7 18.Nb1 Nc7 19.Nc3 e6 20.Nd2 Bg2 21.Kg2 d5 22.h4 ½–½. Brodie,Hugh – Fraser,G, Canada op Toronto, 1968. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 b6 5.g3 Bb7 6.Bg2 0-0)

7.0-0 d6 8.d3 e5 9.Nc3 Nbd7 10.Nd2 Bg2 11.Kg2 a5 12.a3 Qe7 13.e4 ab4 14.ab4 Ra1 15.Qa1 Qe6 16.h3 c6 17.Nd1 d5 18.cd5 cd5 19.Ne3 Bh6 20.ed5 Nd5 21.Nd5 Qd5 22.Nf3 Bg7 23.Qa3 Rc8 24.Re1 Rc2 25.Ra1 Rb2!–+ 26.Rc1?? Rb3 27.Rc8 Bf8 28.Qc1 Rd3 29.Qc6 Qc6 30.Rc6 Bb4 31.Ng5 Rc3 32.Rc3 Bc3 33.Ne4 Bd4 34.Nd2 b5 35.Kf3 b4 36.Ke2 Nc5 37.f3 b3 38.Kd1 f5 0–1. nerveraking (2215) – tedtogonon (2245), net–chess.com, 2003.

7.0-0 d6 8.d4 Nbd7 9.Qc2 c5 10.dc5 dc5 11.b5 Qc7 12.Nbd2 Rad8 13.Rfd1 Rfe8 14.a4 e5 15.e4 Nf8 16.a5 N6d7 17.Bh3 Ne6 18.Be6 Re6 19.a6 Bc8 20.Nb1 Nf8 21.Rd8 Qd8 22.Nc3 Rd6 23.Nd5 f6 24.Re1 Ne6 25.Qd2 Kf7 26.Qd3 ½–½. De Wit,T (2255) – Markin,D (2405), Czech Open A, Pardubice CZE, 2009.

4.c4 c5

5.a3 b6 6.e3 0-0 7.Be2 Bb7 8.0-0 d6 9.d4 Nbd7 10.Nc3 a6 11.Qc2 Rc8 12.Rfd1 Rc7 13.Rac1 (13.bc5 bc5 14.d5 Rc8+=) 13...Qa8 (13...cd4 14.Rd4 Qa8 15.Rh4=) 14.Ne1 (14.bc5 bc5 15.d5 Rb8=) 14...Rfc8 15.bc5 bc5 16.d5 Rb8 17.g4 (17.Rb1 Bc8=) 17...Bc8 18.Ba1 Rcb7 (18...h6 19.f4+=) 19.g5= Ne8 20.Qe4 (20.Rb1 Nb6=) 20...Nf8+= 21.Na4 (21.Nf3 Rb3=) 21...Bf5 22.Qh4 Rb3 23.Bg7 Ng7 24.e4 Bd7 25.Nc3 Ra3 26.Rd3 Rb2 27.Nc2 Rab3 28.Bd1 a5 29.Ne3 Rb4 Black intends a4 30.Qf4 (30.Ra1 Qd8+=) 30...a4 31.Ra1 Ne8 32.e5 Bf5 (32...Qa5!?=) 33.Nf5+/- gf5 34.Qf5 (34.Na4 Rb1 35.Rb1 Rb1+=) 34...de5 (34...Ng7 35.Qe4 a3 36.Nb5+=) 35.Ra4 (35.Na4 Ng6 36.Rda3 Rd2+=) 35...Ra4 (35...Qd8 36.Ne4 Ra4 37.Rf3+=) 36.Na4 Rb4 37.Qe5 Ng6 38.Qg3 Ra4 (38...Rc4? 39.Nb6 Qa5 40.Nc4 Qe1 41.Kg2 Qe4 42.Kf1 Qc4 43.Be2+–) 39.Ba4 Qa4 40.Ra3? (better is 40.Qb8!?-/+) 40...Qc4–+ 41.Ra8? (41.Rc3 Qe4 42.Re3 Qb1 43.Kg2–+) 41...Qc1 42.Kg2 Nf4 43.Kf3 Qd1 44.Kf4 Qd4 (44...Qd4 45.Kf3 Qd5 46.Ke2 Qa8–+) 0–1. Rehorek,Martin (2330) – Weber,Tom (2235), Pardubice op–A, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5)

5.a3 d6 6.e3=.

5.b5 0-0 6.e3 d5 7.cd5 Qd5 8.Be2 a6 9.0-0 ab5 10.Nc3 Qd8 11.Nb5 Nc6 12.d4 Be6 (12...Qb6 13.Qc2 cd4 14.Nbd4=) 13.a3 (13.dc5 Ba2 14.Qc2 Be6+=) 13...c4 14.Nd2 Qb6 (14...Na5!?=) 15.a4+= Na5 16.e4 Rfc8 17.d5 Bd7 18.Bd4 Qd8 19.Nc3 (19.Rc1 Qe8+=) 19...Ne4 (better is 19...e6!?=) 20.Nde4+/- Bd4 21.Qd4 Nb3 22.Qe3 Na1 23.Ra1 b5 24.d6 f5 (24...Bc6!?+=) 25.de7 Qe7 26.Nd5 Qg7 27.Nef6 Kh8 28.Qc3 Ra4? (better is 28...Bc6 29.Nb6 b4+=) 29.Ra4+– ba4 30.Nd7 Qc3 31.Nc3 a3 32.Nb6 Rb8 33.Nc4 Rb1 34.Bf1 Rb3 35.Na2 Rb1 36.g3 Ra1 37.Nb4 Rb1 38.Na3 Rb4 39.Nc2 Rb2 40.Ne3 Kg7 41.h4 Ra2 42.Kg2 Rb2 43.Bc4 Rd2 44.Kf3 Rb2 45.h5! Rd2 46.hg6 hg6 47.Ng2 Rc2 48.Bd3 Rb2 49.Ke3 Rb3 50.Ne1 Rb2 51.Nc2 Ra2 52.f3 Kf6 53.Nd4 Ra3 54.Ne2 Ra2 55.Nf4 Ra3 56.Nd5 Ke6 57.Nb6 Kf6 58.Nc4 Ra1 59.f4 Rg1 60.Kf2 Ra1 61.Ne5 Ra3 62.g4 fg4 63.Ng4 Kg7 64.Ke3 Rb3 65.Ne5 Kf6 66.Ng4 Kg7 67.Kd4 Rb4 68.Bc4 Ra4 69.Ne5 Kf6+/- 70.Ke4 Rb4 71.Ng4+– Kg7 72.Kd5 Ra4 73.Kc5 Ra5 74.Bb5 Ra3 75.Ne5 Kf6 ½–½. Tuvshintugs,Bayarcec (2035) – King,Aylson, Wch U20 Girls, 1995. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5)

5.bc5 Qc7 6.e3 Qc5 7.d4 Qc7 8.Bd3 d5 (8...0-0 9.0-0+=) 9.cd5 Nd5 10.0-0 0-0 11.Qb3 Nb6 12.Rc1 Qd6 (12...Nc6 13.a4+=) 13.Nbd2 Nc6 14.Rc5 (14.Ba3 Qd8+–) 14...Be6+= 15.Qc2 (15.Qa3!?+=) 15...Nb4= 16.Qc3 (16.Qb1 Nd3 17.Qd3 Rfc8=) 16...Nd3 (16...Na4 17.Qb4 Nc5 18.Bg6=+) 17.Qd3 Na4 (17...Rfc8 18.Ba3 Qd8 19.Ng5=) 18.Rc2 Nb2 19.Rb2 b6 20.Ng5 (20.Ne4 Qd7=) 20...Rfc8 (20...Bf5 21.Qb5=) 21.Ne6 (21.Nde4 Qd7=) 21...Qe6 22.a4 Qc6 23.a5 Rab8 (23...ba5 24.Rba2=) 24.ab6 ab6 25.Nb3 (25.Rba2 b5=) 25...e5 26.Qd2 ed4 27.ed4 (27.Nd4 Qc3=) 27...Qc3 28.Rd1 b5 29.Rbb1 Qd2 30.Rd2 (worse 30.Nd2 Bd4 31.Nb3 Bc3–+) 30...Rc3 (30...Kf8 31.Nc5 Rd8 32.d5=) 31.d5 Bh6 32.Rdd1 Bg5 (32...Bf8 33.d6=) 33.Nd4 (33.d6 Rd8+=) 33...Rc5 34.Nc6 (34.d6 b4+=) 34...Re8 (34...Rb7 35.Nb4=) 35.g3 Re2 (35...f5 36.Kf1+=) 36.Rb3 (36.Nd4!? Re5 37.f4 Bf4 38.gf4 Red5 39.Kf2+–) 36...Rcc2 37.Nd4 (better 37.Rf1 Rc5 38.h4=) 37...Rf2?? (better 37...Rcd2 38.Rd2 Rd2 39.Nb5 Rd5=) 38.Nc2+– Rc2 39.Rb5 Rc8 40.d6 Rd8 (40...f5+–) 41.Rg5 (41.Rg5 Kg7 42.Rc5+–) 1–0. makeme (1870) – justnow (1865), gameknot.com, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5)

5.bc5 Qa5

6.Qb3 Qc5 7.d4 Qc7 8.Nbd2 0-0 9.e4 d6 10.Be2 Nc6 11.0-0 b6 12.d5 Na5 13.Qb4 Ba6 (13...Nb7 14.Rab1=) 14.Rac1 Rfc8 15.Rfe1 Qc5 16.Qc5 Rc5 17.Bd4 Rc7 18.e5 Ne8 (18...Nd5 19.ed6 ed6 20.Bg7 Kg7 21.cd5 Rc1 22.Ba6=) 19.Rc2 Rac8 20.Rec1 Bh6 21.Be3 (21.a3!?+=) 21...Be3= 22.fe3 b5 23.ed6 ed6 24.c5 Rc5 25.Rc5 Rc5 26.Rc5 dc5 27.Ne4 c4 28.d6? (better is 28.Nd4!? Nb7 29.g4+=) 28...Bc8–+ 29.Ne5 f5 30.d7 Bd7 31.Nc3 Bc8 32.Nb5-/+ Ba6 33.Na7 Nd6 34.Kf1 Ne4 35.Ke1 Nc3 36.Nac6 Nc6 37.Nc6 Na2 38.Ne5 Nc3 39.Bc4 Bc4 40.Nc4 Kg7 41.Nd2 Kf6 42.Kf2 g5 43.h3 h5 44.g3 Ke5 45.Kf3 g4+= 46.Kg2 Nd1–+ 47.hg4 hg4 48.Kf1 Ne3 49.Ke2 Nd5 50.Kd3 f4 51.Nc4 Kf5 52.Nd6 Ke6 53.Ne4 f3 54.Nf2 Kf5 55.Kd4 Nf6 56.Ke3 Nh7 57.Kd3 Nf8 58.Ke3 Ne6 59.Kd3 Nc5 60.Ke3 Nb3 61.Ne4-/+ Nc1 62.Nf2 Ne2–+ 63.Ne4 Ke5 64.Nf2= Kf5 65.Ne4 Nc1 66.Nf2 Nb3 67.Kd3?? Nc5 68.Ke3 Nd7 69.Kd3? Nf6 70.Ke3 Nd5 71.Kd3?? Nf4! 72.Ke3 Ng2 73.Kd3 Kg5 74.Ne4 Kg6 75.Nf2 Kh5 76.Ke4 Kg5 77.Kd3 Kf5 78.Kd4 Nf4 79.Ke3 Ne2 80.Ne4 Ng1 81.Nf2 Kg5 82.Ne4 Kh5 83.Nf2 Ne2-/+ 84.Ne4 Kg6 85.Nf2 Kf5 86.Ne4= Ng1 87.Nf2 ½–½. Kaniewska,Emilia (1710) – Lewandrowski,Tomasz (1815), 136th YMCA Winter C Poland, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5 5.bc5 Qa5)

6.Nc3 Qc5 7.Nd5 Ne4+=.

6.e3 Qc5 7.d4 Qa5 8.Nc3 0-0 9.Qb3 d6 10.Be2 Nc6 11.0-0 h6 12.Rac1 Nd7 13.Ba3 Re8 14.Nd5 Bf8 15.Bb2 Bg7 16.Nd2 Qd2 17.Nc7 Qe2 18.f3 Na5 19.Qc3 Nc4 20.Rf2 Qe3 21.Qc4 Nb6 22.Qb4 Be6 23.Re1 Qg5 24.Na8 Ra8 25.a4 Rb8 26.f4 Qd5 27.Qc3 Na4 0–1. Gutbier,Michael (1810) – Preiss,Veronika (2145), 11. Gocher Open (Goch) (5), 2000.

6.e3 Qc5 7.d4 Qa5 8.Qd2 Qd2 9.Nbd2 d6 10.Bd3 0-0 11.0-0 Nc6 12.a4 b6 13.d5 (13.Bc3 Bg4+=) 13...Na5 (13...Nb4 14.Bb1=) 14.Bc3 Ba6 15.Ra3 Rfc8 (15...Nb7 16.Rb1=) 16.Ba5+= ba5 17.Nd4 Nd7 (17...Rcb8 18.Rc1+=) 18.Nc6 Kf8 19.Na5 (19.Rb1 Nc5+=) 19...Nc5 20.Be2 Rab8 21.Ra2 Rb4 22.Nc6 Ra4 23.Ra4 Na4 24.Na7 Rc7 25.Rb1?? Bc3-/+ 26.Ne4 Ra7–+ 27.Bd1 f5 28.Ng3?! Bc4 29.Rc1 Bd5 30.Ba4 Ra4 31.Rc3 Ra1 32.Nf1 Bb7 0–1. Zeynalov,F (2255) – Zozulia,A (2340), 2nd President's Cup, Baku AZE (9), 2007.

6.e3 Qc5 7.d4 Qb6 8.Qb3 Qb3 9.ab3 d6 10.Bd3 Nc6 11.Bc3 Bf5 12.Bf5+/- gf5 13.Nbd2 e6 14.Ke2 (14.d5 Ne7+=) 14...Ke7 (14...Ne4 15.Ba5+=; 14...Rg8+=) 15.b4 (15.d5 Nd8+/-) 15...a6 16.Rhb1 b5 (better is 16...Ne4!? 17.Ne4 fe4+=) 17.d5!+– ed5 18.cd5 Ne5 19.Ne5 de5 20.Be5 Rhd8 21.d6 Ke6 22.f4 Ne8 23.Bg7+– Ng7 24.Nf3 Rd6 25.Nd4 Rd4 26.ed4 Kd5 27.g3 Ne6 28.Kd3 h5 29.Re1 f6 30.Ra2 h4 31.Rae2 Nd4+/- 32.Re8 Re8 33.Re8 Nc6 34.gh4 Nb4 35.Kc3 1–0. Kadziolka,B (2205) – Toma,K (2185), ch–PolandJ u20 w, Jarnoltowek Poland (3), 2003.

6.e3 Qc5 7.Be2 0-0 8.Ba3 Qa5 9.Bb2 Nc6 10.0-0 d6 11.d4 Bf5 12.Nbd2 Ne4 13.Ne4 Be4 14.Bd3 Bd3 15.Qd3 Rac8 16.Rfc1 Rfd8 17.Qb3 Qc7 18.c5 d5 19.Bc3 Rd7 20.Rab1 Rcd8 21.Rb2 e5 22.Ne5 Ne5 23.de5 Be5 24.Be5 ½–½. Lim,Mark (1905) – Sparkes,Daniel A (2000), BCF–chT3, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5 5.bc5 Qa5)

6.g3 0-0=.

6.g3 Qc5 7.Bg2 (7.Qb3!?=) 7...Qc4+= 8.Na3 Qc7 (8...Qa6 9.Qb3+=) 9.Rc1 Nc6 10.0-0 a6 (10...0-0 11.Qb3+=) 11.Ne5 0-0 12.Nc6 (12.Qb3 Rb8+=) 12...dc6 (12...bc6 13.e4-/+) 13.d4 (13.Nc4 Qd8-/+) 13...e6 (13...Be6 14.d5 Rfd8 15.Bf6 Bf6 16.Qb3-/+) 14.e4+= Rd8 15.Qc2 Bd7 (15...Rb8 16.Nc4+=) 16.d5 (16.Nc4 b6=) 16...Rac8 (16...ed5 17.ed5 Rac8 18.Bd4-/+) 17.Qc3? (better is 17.d6!? Qb8 18.Rfd1=) 17...ed5-/+ 18.ed5 Nh5 (18...Qb8!?-/+) 19.Qb3+= Bb2 (19...c5 20.d6 Qd6 21.Nc4-/+) 20.Qb2 Qd6 (20...c5!?+=) 21.Nc4= Qc5? (21...Qf6 22.Qb7 Rb8 23.Qa7 cd5 24.Bd5=) 22.Ne5?? (better is 22.Nb6 Qd6 23.Nc8 Bc8 24.dc6 bc6 25.Rc6+–) 22...Qb5= 23.Qb5 ab5 (23...cb5 24.Rc8 Bc8 25.Rc1=) 24.Nd7 (24.a3 c5=) 24...Rd7 25.dc6 bc6 26.Rc6 (26.Bc6? Rdc7 27.Rc5 Rc6 28.Rb5 Rc2–+) 26...Rc6 (26...Rcd8 27.Rb6 Rd2 28.a3=) 27.Bc6 Rd2 (27...Ra7 28.Rb1=) 28.Bb5 (28.a3 Ra2+=) 28...Ra2= 29.Bc4 (29.Re1 Nf6=) 29...Rc2 30.Bd3 Rd2 31.Bc4 Kg7 ½–½. hobgoblin – abhailey, net–chess.com, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5 5.bc5 Qa5)

5.bc5 Na6

6.d4 b6 7.c6 (better is 7.cb6!? Qb6 8.Bc3+/-) 7...dc6= 8.g3 0-0 9.Bg2 Qc7 10.0-0 Bb7 11.Nc3 Nd7 12.e4 b5 (better is 12...e5!?=) 13.cb5+/- cb5 14.Nb5 Qb6 15.a4 Be4 16.Ba3 Bf6 17.Re1 Bd5 18.Be7 Rfe8 19.Bf6 Nf6 20.Re8 Re8 21.Ne5 Nb4 22.Bd5 Nbd5 23.Rc1 a6 24.Rc6 Qa5 25.Nd6 Re7 26.Ndc4 Qb4 27.Kg2 Rc7 28.Rc7 Nc7 29.Ne3 Ne6?? 30.Qf3+– Qe7 31.Nc6 Qd6 32.Qf6 Qc6 33.d5 Qb7 34.Qc3 Nc7 35.Qe5 Qc8 36.h4 Qd7 37.a5 Ne8 38.Qc3 Nd6? 39.Qc6 Qc6 40.dc6 Kf8 41.Nd5 Ke8 42.Nc7 Kd8 43.Na6 Nc4 44.Nb4 Na5 45.Kf3 Kc7 46.Kf4 Nc4 47.g4 h6+/- 48.Nd3 f6 49.Nb4 Kd6 50.Ke4?? Kc5= 51.Nd3 Kc6 52.h5 Nd6 53.Kf4 g5 54.Kg3 Kd5 ½–½. Pantovic,Dragan M (2100) – Bojovic,Dusan (2320), Valjevo SER, 1st League (m), 2011.

6.d4 Ne4 7.Nbd2 (7.Qc2!? Qa5 8.Nbd2 Nd2 9.Nd2+/-) 7...Nec5+= 8.Rb1 (worse is 8.dc5 Bb2 9.Rb1 Ba3-/+) 8...Ne6 9.e3 0-0 10.Be2 d6 11.0-0 Nac7 12.Nb3 Ne8 13.Nfd2 f5 14.Ba3 a5 15.Nc1 Nf6 16.Nd3 Qc7 17.f4 Nd8 18.Bf3 Rb8 19.Qb3 Be6 20.Rfc1 Bf7 21.d5 b5 22.c5 (22.cb5 Qb7 23.Bb2 Bd5 24.Bf6 Bb3 25.Bb7 Bf6 26.Nb3 (worse is 26.ab3 Rb7 27.b6 Rb6-/+; 26.Rb3?! Nb7 27.Rc7 Kf7+=) 26...Nb7 27.Nd4+/-) 22...Qa7 23.Bb2 a4 (23...Nb7!?=) 24.Qb4+/- Nb7 25.Bd4 dc5 26.Nc5 Nc5 27.Bc5 Qd7= 28.Be7 Rfe8 29.Bd6 Bf8 30.Bf8 Rf8 31.Rc5 Nd5 32.Qd4 Rfd8 33.Nf1 Ne7 34.Qe5 Qd6 35.Qd6 Rd6 36.Rbb5 Rb5 37.Rb5 Ba2 38.Ra5 Bb3 39.Kf2 Kg7 40.g4 fg4 41.Bg4 Nd5 42.Ng3 Nc3 43.Ra7 Kf8 44.e4 h5 45.Ra8 Kf7 46.Ra7 Ke8 47.Bf3 Bc4 48.e5= Ra6 49.Ra6 Ba6 50.Bc6 Ke7-/+ 51.Ba4 Na4 52.f5 Bd3 53.fg6 Bg6 54.Ne2 Nc5 55.Kg3 Nd3 56.Kh4-/+ Ke6 57.Kg5 Be8 58.Ng3 ½–½. Michna,Marta (2350) – Benderac,Ana (2260), EU–Cup (Women), 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c5)

4.c4 c6

5.Na3 Qb6 6.Nc2 a5 7.c5 Qc7 8.a3 0-0 9.e3 d6 10.Be2 Na6 (10...dc5 11.0-0-/+) 11.cd6=+ ed6 12.Bc3 Bf5 13.d3 Be6 (13...ab4 14.ab4 c5 15.bc5 Nc5 16.0-0=) 14.Rb1 (14.0-0!?=) 14...ab4-/+ 15.ab4 b5 (15...c5!? 16.b5 Nb8-/+) 16.0-0= Qb6 17.Qc1 Nc7 18.e4 c5 19.bc5 dc5 20.Be5 Rfc8 (20...Ra2 21.Re1=) 21.d4 (better 21.Ra1!?=) 21...Ne4-/+ 22.Bg7 Kg7 23.Qe3 Bf5 24.Nh4 (24.dc5!? Qf6 25.Nb4-/+ (25.Bb5? Nc3 26.Bd3 Re8-+)) 24...Nd5-+ 25.Nf5 gf5 26.Qh3 (26.Qf3 Ndc3 (26...cd4 27.Rb5 Qd8 28.Nd4+/-) 27.Rbe1 cd4 28.Qf5 Rc5-/+ (28...Ne2?! 29.Re2 Nc3 30.Rd2=+)) 26...Nf4 27.Qf3 Nc3 (27...cd4?! 28.Qf4 Rc2 29.Qf5 Re2 30.Qg4 Qg6 31.Qe2=; 27...Ne2?! 28.Qe2 Ra2 29.Ra1 Ra1 30.Ra1 cd4 31.Qd3-+) 28.Bd3 (28.Bb5 Nb1 29.Qf4 cd4 30.Nd4 Kh8+=) 28...Nd3 29.Qd3 Nb1 30.Rb1 b4 31.Qf5 (better 31.h3-+) 31...cd4 32.Qg4 (32.h3 Rc4 33.Qe5 Qf6 34.Qf6 Kf6 35.Nb4-+) 32...Qg6 33.Qg6 fg6 (better 33...hg6!? 34.Nd4 b3 35.Nb3-+) 34.Nd4 Rc4 35.Nb3 Rc3 36.Kf1 Ra2 37.Nc1 Rac2 38.Ne2 (38.Nb3 Kf6-+) 38...Rd3 39.Nf4 Rdd2 40.Ke1 Rb2 (better 40...g5 41.Rb4 gf4 42.Rf4-+) 41.Rb2 Rb2 42.Nd3 Rb3 43.Kd2 Kf6 44.Kc2 (44.h3-+) 44...Rc3 45.Kd2 Rc4 46.Nb2 (46.Nc1 Ke5-+) 46...Rc8 47.Kd3 b3 48.Nd1 (48.g3-+) 48...Rd8 49.Ke2 Ke5 50.Ne3 (50.g4-+) 50...Kd4 51.Kd2 Rc8 52.h4 b2 53.Nc2 Kc4 0-1. Necula,Iulian (1920) - Cotruta,Alexandru_Mihai (1860), ch-ROU, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6)

5.Qc2 d5 6.d3 (6.e3 Na6+=) 6...0-0 7.Nbd2 a5 8.ba5 (8.b5 dc4 9.Qc4 a4-/+) 8...Qa5 9.c5 (better is 9.Bc3!? Qa4 10.Qa4 Ra4 11.e3-/+) 9...Na6–+ 10.Bf6? (better is 10.Rc1–+) 10...Bf6 (10...ef6?! 11.Rc1–+) 11.d4 (11.Rb1 Qc5 12.Qc5 Nc5–+) 11...Bf5 12.Qc1 (12.Qb2 Nb4 13.g4 Bg4–+) 12...Nb4 13.g4 (13.e3–+) 13...Nc2 14.Kd1 Na1 (better is 14...Qa4 15.Rb1 Nd4 16.Nb3 Bc2 17.Ke1 Nf3 18.ef3 Qa2–+) 15.gf5 (15.Qa1 Bg4 16.Nb3–+) 15...Qa4 16.Ke1 Nc2 17.Kd1 Nd4 18.Ke1 Nc2 19.Kd1 Ne3 20.Ke1 Bb2 21.Qb1 Nc2 (21...Nc2 22.Kd1 Na3 23.Ke1 Nb1–+) 0–1. Stanimirovic,Ivana (1760) – Gajcin,Marina (2015), Batumi GEO, 2014.

5.Nc3 d5 6.e3 0-0 7.h3 Nbd7 8.cd5 cd5 9.Be2 Nb6 10.a3 Re8 11.0-0 e5 12.Rc1 Bd7 (12...d4!? 13.Nb5 d3 14.Bd3 e4+=) 13.a4 a5 14.b5 Qe7 15.Qb3 h6 16.Ba3 Qe6 17.Bc5 Nc8 18.d4 e4 19.Ne5 b6 20.Ba3 Bf8 21.Bf8 Rf8 22.Bg4 (better is 22.f3!? Nd6 23.Nd7 Nd7 24.Nd5 ef3 25.Bf3+–) 22...Ng4+/- 23.Ng4 h5? (better is 23...f5 24.Ne5 Ne7+/-) 24.Qd5+– hg4 25.Qa8 Nd6 26.Qd5 gh3 27.Qe6 Be6 28.d5 hg2 29.Kg2 (29.de6?! gf1R 30.Rf1 fe6+=) 29...Bg4 30.f3 (better is 30.Kg3!? Bf3 31.Nb1+–) 30...ef3 31.Kg3 Bh5 32.e4 Re8 33.Rce1 Re5 (better is 33...Rc8!? 34.Nb1 Rc4=) 34.Rf2 f5 35.Kf4 Nc4 36.d6! g5? (36...Nd6 37.Ke5 Deflection) 37.Kg5+– fe4 38.Kf4 e3 39.d7 ef2 40.d8Q Kh7 41.Qd3 Bg6 42.Rh1 Kg7 43.Qd7 Bf7 44.Qg4 Bg6 45.Rf1 Re3 46.Qd7 Bf7 47.Rf2 1–0. Littke,Helmut (1975) – Laske,Manfred (1930), Mecklenburg VP LL, 2005. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 c6)

5.d3 a5 6.a3 d5 7.Nbd2 0-0 8.g3 Bg4 9.Bg2 Nbd7 10.0-0 Qb8 11.h3 Bf3 12.Bf3 e5 13.Qb3 Qd6 14.Rad1 b6 15.e4 d4 16.Bg2 Rfc8 17.Bc1 Bf8 18.b5 Nc5 19.Qb1 Na4 20.Rde1 Nc3 21.Qb2 Nd7 22.f4 Nc5 23.Rf3 Bg7 24.bc6 Qc6 25.Nf1 Rab8 26.fe5 Be5 27.g4 b5 28.cb5 Rb5 29.Qf2 Qe6 30.Nd2 Na2 31.Bf1 Nb3 32.Nb3 Qb3 33.Bh6 Rb7 34.Rf6 Qa3 35.Qh4 Qc5 36.Re2 Nc3 37.Ref2 a4 38.R2f5 a3 39.Qg5 Re8 40.Ra6 Rbe7 41.Ra3? Qa3 42.Re5 Qd6 43.Rf5? Qg3 44.Kh1 Re6 45.Rf6 Nd1 (45...Nd1 46.Qf4 Qf4 47.Rf4 f5–+) 0–1. Bureau,Frederic – Apicella,Manuel (2430), Meudon op, 1991.

5.d3 Qb6 6.Qb3 0-0 (6...Na6 7.a3+=) 7.g3 (7.c5 Qc7+=) 7...Na6 8.a3 d6 (8...Nc5 9.Qc2 Ne6 10.Nc3=) 9.Bg2 e5 (9...Ng4!? 10.d4 Be6=) 10.Nbd2+= h6 11.0-0 Be6 12.Bc3 Nd7 13.Qb2 Qc7 14.Rfc1 f5 15.a4 White intends b5 15...c5 16.b5 Nb4 17.Ra3 (17.a5 Rab8+=) 17...a5= 18.ba6 ba6 19.a5 (worse is 19.Bb4 cb4 20.Rb3 Rab8-/+) 19...Rab8 20.Qa1 (20.Rb3 Qa5 21.Nh4 Kh7=) 20...Nf6 Black plans e4 (20...d5 21.Rb3+=) 21.Rb3= Kh7 22.Rcb1 e4 23.Ne1 e3 (23...Ng4!?=) 24.fe3+= Qe7 25.Nf1 d5 26.cd5 Nfd5 27.Bg7 Qg7 28.Qg7 Kg7 29.Ra3 (29.d4 Nf6 30.R3b2 Ba2+=) 29...Rb5 30.e4 fe4 31.Be4 Rfb8 32.Nd2 Nc6 Attacks the isolani on a5 33.Rba1 (33.Rb5!? Rb5 34.Nc4=) 33...Nd4= 34.Bf3 (34.Bd5!? Bd5 35.e3=) 34...Ne3-/+ 35.Rc1 (35.Ra4!?-/+) 35...Rb2–+ 36.Ne4 Ne2 (better is 36...Bg4 37.Nc3 Rf8–+) 37.Kf2?? (better is 37.Be2 Re2 38.Nc5-/+) 37...Nc1 (better is 37...Ng4 38.Bg4 Nc1 (38...Bg4?! 39.Rc5 Nd4 40.Ke3–+) 39.Ke3 Bg4–+) 38.Ke3 Nb3 (38...Rh2?! 39.Rc3 Nb3 40.Nc5 Nc5 41.Rc5–+) 39.Ng2 (39.h4–+) 39...Nd4 40.Rc3 Nf3 41.Kf3 Rf8 42.Nf4 g5 43.Nc5 (43.Rc5 gf4 44.gf4 Rd8–+) 43...Bd5 44.Ke3 gf4 45.gf4 Rb5 (45...Ra8 46.h4–+) 46.Kd4 (46.Na6 Ra5 47.Nc7 Bf7–+) 46...Rd8 47.Ra3 (47.Ke5–+) 47...Bf7 (47...Bf7 48.Ke3 Rc5–+) 0–1. Castano,Jhon Edison (2090) – Perdomo,Jefferson (2000), Medellin COL, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6)

5.d4 0-0 6.Nbd2 d5 7.c5 Nbd7 (7...a5 8.Qa4=) 8.e3= h6 (8...b6 9.Be2=) 9.Bd3 Nh7 (9...a5 10.ba5 e5 11.Ne5 Ne5 12.de5=) 10.a4 (10.0-0 Nhf6+=) 10...f5 (10...a5 11.Qb3+=) 11.0-0 Ndf6 (11...Nhf6 12.Qc2+=) 12.b5 (12.Ne5 Qe8+/-) 12...Ne4 13.bc6 (better is 13.Nb3+/-) 13...Nhf6? (13...bc6!? 14.Qc2 Rb8+=) 14.Bb5 (14.cb7 Bb7 15.Ne5 Nd2 16.Qd2 Ne4 17.Be4 Be5+–) 14...a6 (14...bc6 15.Bc6 Rb8 16.Qc2+/-) 15.cb7+– Bb7 16.Bd3 Bc6 17.Ne5 Be8 18.Rc1 (18.Nb3 Qc7+–) 18...Nd2 (18...Qa5 19.Ne4 fe4 20.Bc2+–) 19.Qd2 Ne4 20.Be4 (20.Qe2 Be5 21.de5 Ba4+–) 20...fe4+/- 21.Rfd1 1–0. croach – alexp, net–chess.com, 2017. (=1.c4 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 c6)

5.d4 a5 6.b5 cb5 7.cb5 0-0 8.e3 d6 9.Be2 a4 10.0-0 Qb6 11.Ba3 Bf5 12.Nbd2 Nbd7 13.Nc4 Qd8 (worse is 13...Qb5 14.Nd6 Qa5 15.Nf5 Qf5 16.Be7+/-) 14.Rc1 Nb6 15.Nfd2 Be6 16.Bf3 Nc4 17.Nc4 Bd5 18.Qd3 (better is 18.Bd5!? Nd5 19.Qf3+/-) 18...Bf3= 19.gf3 Qd7 20.Nb6 Qh3 21.Qe2 Rad8 22.Rc7 (worse is 22.Na4 Ra8 23.Rc4 Ra5+=) 22...Rfe8 23.Kh1 (worse is 23.Na4 Ra8 24.Qd1 Nd5+=) 23...e5 24.d5 e4 25.Rg1? (better is 25.fe4 Ng4 26.f3 Nh2 27.Qg2 Qg2 28.Kg2 Nf1 29.Kf1-/+) 25...ef3–+ 26.Qf1 (26.Qe1 Ne4 27.Rc2–+ (27.Rb7 Be5 28.Rg6 hg6 29.Qg1 Bh2 30.Qg6 fg6 31.Rg7 Kg7 32.Bb2 Be5 33.Kg1 Qg2)) 26...Qh5 (better is 26...Ng4 27.Rg2 Nh2–+) 27.Rc4 (27.Bb2 Nd5 28.Nd5 Qd5 (28...Bb2?! 29.Qc4 Rf8 30.Nf4+=) 29.Bg7 Kg7 30.Qa1 Kg8-/+) 27...Re4 (27...Ne4!? 28.Rc2 Be5 29.h3–+) 28.Rg3 Rc4 29.Qc4 Qf5 30.Qf4 Qb1 31.Rg1 Qb5 32.Qd4 (32.Qb4 Qd3 33.Re1 Nd5 34.Nd5 Qd5 35.Qa4 Qh5–+ (worse is 35...Qa2 36.Qh4 f6 37.Bb4–+)) 32...Nh5 (better is 32...Nd7 33.Qa4 Qb6–+) 33.Qb4 Qe2 34.Qa4? (better is 34.Qh4 f6 35.Qe4–+) 34...Qf2 35.Bd6 Qe3 (35...Rd6 36.Qe8 Bf8 37.Nd7 Rd7 38.Qd7 Qe3 39.Qh3–+) 36.Nc4 (36.Qg4 f2 37.Rf1 Rd6 38.Nc4–+) 36...Qe4 37.Nb6 Qa4 (better is 37...Bd4 38.Qd4 Qd4–+) 38.Na4 Rd6 0–1. Kaganowski,Alexander (1960) – Kneutgen,Alexander (2150), Mittelrhein–ch, 2005. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 c6)

5.d4 Na6 6.a3=.

5.d4 d6 6.e3 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 c6).

5.d4 Ne4 6.Nc3 Nd6 (better is 6...d5!?=) 7.e3+/- 0-0 8.Qb3 a5 9.b5 b6 10.h4 cb5 11.cb5 Bb7 12.h5 Nf5 13.Be2 d5 14.Ba3 Re8 15.Rc1 a4 16.Na4 Nd7 17.g4 (17.Bd3 e5 18.Bf5 gf5+/-) 17...Nd6 (17...Nh6 18.Rg1+/-) 18.Bd6+– ed6 19.g5 f6? (better is 19...Rc8 20.Rc8 Qc8+–) 20.Rc6! fg5 (20...Bc6 21.bc6 Passed pawn) 21.Qd5 Kh8 22.Ng5 Nf6 (22...Re7 23.hg6 Nf6+–) 23.Nf7 Kg8 24.Nh6 Kh8 25.Qg8! Ng8 (25...Rg8 26.Nf7; 25...Ng8 26.Nf7) 26.Nf7 1–0. Janek – Frederico, internet, 2018.

5.e3 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6).

5.e3 Na6 6.b5 cb5 7.cb5=.

5.e3 Qb6 6.Qb3 a5 7.b5 0-0 8.Be2 d5 9.cd5 a4 10.Qa3 cb5 11.Bd4 (11.Qe7?? Nd5 12.Bg7 Ne7 13.Bf8 Kf8–+) 11...b4 12.Bb6 ba3 13.Bd4 Nd5 14.Bg7 Kg7 15.Na3 Nc6 16.d4 Nc3 17.Bc4 Na5 18.Bd3 Be6 19.Nb5 Rfc8 (19...Na2?! 20.Nc7 Rac8 21.Ne6 fe6 22.Ra2 Rc1 23.Ke2 Rh1 24.Ra4+=) 20.Nc3 Rc3 21.Kd2 Ra3 22.Ke2 Rc8 23.Rhb1 Ba2 24.Nd2 Bb1 25.Ra3 Bd3 26.Kd3 b5 27.Ra1 Nc6 28.Rb1 Rb8 29.d5 Ne5 30.Kd4 Nd7 31.Rb4 e5 32.de6 fe6 33.Nb1 Nf6 34.e4 Rd8 35.Ke3 Ng4 36.Ke2 Ra8 37.Na3 Nh2 38.f3 Rc8 39.Kf2 Rc3 40.Nb5 Rc1 41.Ra4 h5 (better is 41...Kf6!?+=) 42.e5+/- g5 43.Nd4 h4 44.Ne6 Kg6 45.Nd4 g4 46.Ra6 Kf7 47.Rf6 Ke8 48.Ne2 g3 49.Ke3 Nf1 50.Kd4 Rd1 51.Kc5 (better is 51.Ke4!? Re1 52.Kd3 Rd1 53.Kc3=) 51...Ne3+= 52.Nf4 Ng2 53.Ng6 (worse is 53.Ng2 h3 54.Re6 Kd7-/+) 53...Rc1 54.Kd6 Rd1 55.Kc6 Rc1 ½–½. Koehn,Peter (2300) – Lisanti,Andre (2350), BL2–West, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6)

5.e4 d6 6.d3 Bg4 7.Be2 0-0 8.0-0 Nbd7 9.Nbd2 c5 10.a3 Re8 11.d4 cd4 12.Nd4 Be2 13.Qe2 (worse is 13.Ne2 Ne4 14.Bg7 Nd2 15.Qd2 Kg7+=) 13...Rc8 14.Rac1 e6 (better is 14...Qb6!?+=) 15.Nb5+/- Nb6 16.Na7 Ra8 17.Nb5 Qe7 18.c5 dc5 19.Rc5 Rec8 20.Rfc1 Rc5 21.Rc5 Na4 22.Rc7 Qd8 23.Bf6 Bf6 24.Rb7 Nc3 25.Nc3 Bc3 26.Qf3 Qf6 27.Qf6 Bf6 28.Nc4 Rc8 29.Ne3 Bd4 30.Rb5 ½–½. Vollbrecht,Joerg – Scanlon,Brian E, CiF, 1988. (=1.c4 Nf6 2.Nf3 g6 3.b4 c6 4.Bb2 Bg7)

5.g3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 c6 5.c4).

5.Na3 0-0

6.e3 a5 7.b5 d5 8.Be2 dc4 9.Bc4 Bf5 10.d3 c5 11.h3 Qb6 12.Qb3 a4 13.Qc2 Nfd7 14.Bg7 Kg7 15.0-0 Qf6 16.Bd5 Ra7 17.Nc4 b6 18.e4 Be6 19.Be6 Qe6 20.d4 cd4 21.Nd4 Qf6 22.Qb2 a3 23.Qc3 Rc8-/+ 24.f4 Ra4?? 25.e5= Qh4 26.e6 Nf6?? 27.Nc6+– Nc6 28.Nb6 Nd4 29.Qc8 Ne2 30.Kh1 Ng3 31.Kg1 Ne2 32.Kh1 Ng3 33.Kg1 ½–½. Daneri,M (2105) – Chang,S (2030), III Copa Roggio C, Asuncion PAR, 2010.

6.e3 d5 7.Qb3 Nbd7 8.cd5 cd5 9.Rc1 Nb6 10.Be2 Bd7 11.b5 Be6 12.Qb4 Ne4 13.Bg7 ½–½. Giardelli,S (2445) – Ricardi,P (2540), It Pinamar ARG (5), 2004.

5.Na3 a5

6.b5 0-0 7.e3 d5 8.Be2 dc4 9.Bc4 Ne4 (9...Bg4 10.d4=) 10.Bg7+= Kg7 11.Qc2 Nd6 12.Be2 Bg4 13.0-0 cb5 14.Nb5 Nc6 15.Qb2 Kg8 16.d4 Rb8 17.Rfc1 Nb4 18.Nd6 Qd6 19.a3 Bf3 20.gf3 Nc6 21.f4 Rbc8 22.Qb6 Kg7 23.Bf1 e6 24.Rc5 Qd7 25.Rb1 Rc7 26.Rbc1 Rfc8 27.Bg2 h5 28.h3 Kh7 29.Be4 Kg7 30.Kg2 Kg8 31.Bf3 Kg7 32.R1c4 Kg8 33.e4 Qd6? 34.e5 (34.e5 Qd7 35.Rb5+/-) 1–0. Spiridonov,Nikola (2490) – Estrin,Yacov (2450), Agard, 1976.

6.b5 d5 7.e3 dc4 8.Bc4+= 0-0 9.0-0 cb5 10.Nb5 Nc6 11.h3 a4 12.d4 Bd7 13.Ba3 Na7 14.Na7 Ra7 15.Rb1 Ne4 (15...Bc6 16.Bc5 Ra8 17.Ne5+=) 16.Qc2+/- Nd6 (16...Bc6 17.Bd3 f5 18.Bc4 Kh8 19.Rfd1+/-) 17.Bc5 Nc4 (17...Ra8 18.Bd6 ed6 19.Rb7+/-) 18.Qc4 (18.Ba7?! Na3 19.Qe2 Nb1 20.Rb1 Qc7+=) 18...Ra8 19.Rb7 Bf6 20.e4 Re8 (20...Rb8 21.Rfb1 Rb7 22.Rb7+–) 21.Rfb1 Bc6 22.Be7 Qc8 23.R7b6 Be4 24.Qc8 Rec8 25.Bf6 Bb1 26.Rb1 Ra6 27.Be7 Rc2 28.a3 f6 29.d5 Kf7 30.Rb7 g5 31.g4 Rc1 32.Kg2 Rd1 33.Nd4! Ra8 34.Bc5 (34.Bc5 Kg8 35.d6+–) 1–0. Panno,O (2485) – Alonso,S (2480), II Manuel Pereyra Puebla Mem, Mendoza A, 2003.

5.d3 d5

6.Nbd2 0-0 7.g3 a5!? 8.a3 Na6+=.

6.Nbd2 0-0 7.g3 Qd6 8.a3= Nbd7 9.Bg2 e5 10.0-0 Re8 11.e4 de4 (11...d4 12.c5 Qc7 13.Nc4=) 12.de4 b6 13.Qc2 c5 14.Rfe1 Bb7 15.b5 (15.Bc3 Rad8=) 15...Qc7 16.Rad1 Nf8 (16...a6 17.ba6 Ra6 18.Qc3=) 17.Nb1+= Rab8 (17...a6 18.ba6 Ba6 19.Be5+–) 18.Nc3 Re7 (18...a6 19.Bf1+=) 19.Nd5 Bd5 (19...Nd5 20.ed5 (worse is 20.Rd5 Bd5 21.cd5 Qd7+=) 20...Qd6 21.Ng5+=) 20.ed5 (worse is 20.Rd5 Nd5 21.cd5 Qd7+=) 20...Ne8 21.d6 Nd6 22.Ne5 Rbe8 23.f4 f6 24.Rd6 fe5 25.Rc6+/- Qd7 26.Bd5 Kh8 27.fe5 Qg4 28.Qe2 Qe2+/- 29.Re2 Nd7 30.e6 Bb2 31.ed7 Re2 32.Rc8 (32.Rc8 Bd4 33.Kh1 Re1 34.Kg2+–; 32.de8B?! Re8 33.Rc7 Ba3 34.Ra7 Bb4+/-; 32.de8N?! Re8 33.Rc7 Ba3 34.Ra7 Bb4+/-) 1–0. Stocek (2465) – Nedela (2445), Turnov, 1996.

6.Nbd2 0-0 7.g3 Re8 8.Bg2= Qd6 (8...a5 9.a3=) 9.Qb3 e5 (9...Nbd7 10.0-0=) 10.e4 (10.0-0 Bg4+=) 10...de4 (10...a5 11.ed5 cd5 12.0-0=) 11.de4 c5 (11...a5 12.a3=) 12.b5+= b6 (12...Nbd7 13.0-0+=) 13.Ne5 Re5 14.f4 Ng4 15.Be5 (15.fe5 Ne5 16.Be5 Qe5+/-) 15...Be5+= 16.fe5 Ne5? (better is 16...Qe5!? 17.0-0-0 Nf2=) 17.Rd1 (17.Nf3 Nbd7 18.0-0+/-) 17...Bg4 (17...Qe7!?+/-) 18.Nf3+– Qe7 (18...Qf6 19.Ne5 Bd1 20.Qd1 Qe5 21.Qd8 Kg7 22.0-0+–) 19.Ne5 Bd1 20.Qd1 (20.Qc3!? Nd7 21.Nc6 Qe6 22.Kd1 a6+–) 20...Qe5 21.Qd8 Kg7 22.0-0 a6 (22...a5 23.Kh1+–) 23.Qb6 Nd7 (23...Qd4 24.Kh1 Nd7 25.Qc6+–) 24.Qc6 Qd4 25.Kh1 Rb8 26.a4 (better is 26.ba6!? Rb6 27.Qc8+–) 26...Rb6+/- 27.Qc7 (better is 27.Qd5!? Ne5 28.a5+/-) 27...ab5+= 28.ab5 Rf6 29.Rf6 Nf6? Attacking the isolated pawn on e4 (better is 29...Kf6!? 30.Qf4 Kg7+=) 30.h3+– Ne4 31.Qf4 Nf6? (better is 31...Nf2 32.Kh2 Qf4 33.gf4 Nd3+–) 32.Qd4 cd4 33.Kg1?? (better is 33.b6 d3 34.b7+–) 33...Nd7+= 34.Bc6 (34.Bd5 Kf6+=) 34...Nb6= 35.Bd5 (35.Kf1 f5=) 35...f5 36.Kf2 Kf6 37.Bg8 Na4 38.Ke2 (38.Kf3 h6=) 38...h6 39.Kd2 (39.Bd5 g5=) 39...g5 40.Bd5 (40.Bh7 Ke5=) 40...f4 (40...Ke5 41.Bf3=) 41.gf4 gf4 42.Bf3 Ke5 43.Bd1 Nc5 44.b6 Kd6 45.Bf3 Nd7 46.b7 Kc7 47.Bd5 (47.Ke2 Nc5=) 47...Nc5 (47...Nb6 48.Bh1 Nc4 49.Kd3=) 48.Ke2 ½–½. Wu,Christopher (2375) – Rajkovic,Mladen (2275), World Youth Open U18, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6)

5.e3 a5

6.a3 ab4 7.ab4 Ra1 8.Ba1 Na6=.

6.b5 a4 7.a3 (7.Nc3 a3 8.Bc1 Ne4=) 7...0-0= 8.Nc3 Qa5 (8...d6 9.bc6 Nc6 10.Na4=) 9.Be2 (9.c5 d6 10.d4 Nd5=+) 9...d6 (9...cb5 10.Nb5 d5 11.cd5 Nd5 12.Bg7 Kg7 13.0-0+=) 10.0-0 c5 (10...cb5 11.cb5 Bf5 12.Rc1+=) 11.d4 (11.Nd5 Nd5 12.Bg7 Ne3 13.fe3 Kg7=) 11...Bg4 (11...Bf5 12.Bd3+=) 12.h3 (12.Rb1 cd4 13.ed4 Bf5+=) 12...Bf5 13.Nh4 (13.dc5 dc5 14.Nd5 Nd5 15.Bg7 Ne3 16.fe3 Kg7=) 13...Be6 14.d5 Bc8 15.Rb1 Nbd7 16.Qc2 (16.Nf3 Nb6+=) 16...h6 (16...Ne5 17.f4 Ned7 18.Nf3+=) 17.Nf3 Re8 18.Bd3 b6 (18...Nb6 19.Ne4+=) 19.Ne4 Ne4 (19...Ra7 20.Bc3+–) 20.Be4 (20.Bg7 Nd2 21.Nd2 Kg7+=) 20...Bb2 (20...Nf6 21.Bc3 Qa7 22.Qd3+=) 21.Rb2 f5 22.Bd3+/- e5 23.de6 Re6 24.e4 f4 25.Rd1 Bb7 26.Qc1 Rf8 27.Rbd2= Qa8 28.Bc2 Qb8 29.Re1 Rf7 30.Rde2 Ne5 31.Ne5 de5 32.Rd2 Rd6 33.Rd6 Qd6 34.Ba4 Rd7 35.Rd1+/- Qe7 36.Bc2 Rd4 37.Rd4 cd4 38.Bd3 Qc5 39.f3 g5 40.Qb2+= Kf7 41.Qb4 Qb4= 42.ab4 h5 43.c5 Bc8 44.Bc4 Ke7 45.Kf2 h4 46.Ke1 Kd8 47.Kd2 Kc7 48.Kd3 Bd7 49.Ke2 Bc8 50.c6 Kd8 51.Bd5 Kc7 52.Kd2 (52.Kd3 Kd6+/-) ½–½. van Rooijen,Peter – Osthus,Reinhard, TT–04 TSC, 2003.

6.b5 d5 7.cd5 Qd5 8.Nc3 Qh5 9.Be2 0-0 10.a4 Bg4 11.d4 Rd8 12.Qb3 Be6 13.Qc2 cb5 14.ab5 Nbd7 15.Ba3 Rdc8 16.Qd2 (16.Be7 Nd5 17.Ng5 A) worse is 17...Rc3 18.Qe4 N7f6 A1) worse is 19.Bh5 Ne4 20.Ne4 Rcc8-/+ (20...Ne7?! 21.Nc3 gh5 22.Kd2=); A2) 19.Bf6 Nf6 20.Bh5 Ne4 21.Ne4+/-; B) 17...Bg4=) 16...Bf8 17.0-0 Qh6 18.Qb2 Ng4 19.e4 Ne3 20.Rfc1 (worse is 20.fe3 Qe3 21.Kh1 Qc3 22.Qc3 Rc3-/+) 20...Nc4 21.Bc4 Bc4 22.Ne2 Nb6 23.Bc5 Be2 24.Qe2 (worse is 24.Bb6 Rc1 25.Rc1 Bf3 26.gf3 Qg5 27.Kf1 Qf6–+) 24...Nd7 25.Ba3 Qh5 26.e5 Nb6 27.Qe4 Rc1 28.Rc1 Rb8 29.Rc7 Qh6 30.Bc1 (30.Be7?! Be7 31.Re7 Qc1 32.Qe1 Qe1 33.Ne1 a4+=) 30...Qg7 31.Rb7 Rc8 32.Bd2 (32.Rb6?! Rc1 33.Ne1 Qh6+/-) 32...Nc4 33.Be3 Ne3 34.fe3 a4 35.b6 g5 (35...Rc1 36.Kf2 f5 37.Qd5 Kh8 38.Qa2+–) 36.Rc7 Rd8? (better is 36...Rb8 37.b7 Qg6 38.Qg6 hg6+–) 37.b7 g4 (37...a3 38.Nd2 a2+–) 38.Rc8 gf3 39.Qf3 (39.Qf3 Rc8 40.bc8Q+– (worse is 40.bc8N Qg6+=; 40.bc8B?! a3=)) 1–0. Morozov,Vasiliy (2045) – Zadorina,Nadya (2080), Novokuznetsk op, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6 5.e3 a5)

6.b5 d6 7.Be2 0-0 8.0-0 e5 9.d4 e4 10.Nfd2 Re8 11.Nc3 c5 12.d5 Qe7 13.Rb1 Nbd7 14.Qc2 Increases the pressure on e4 14...Nb6 15.Nce4?? (better is 15.Na4 Na4 16.Qa4+=) 15...Ne4–+ 16.Ne4 Qe4 17.Bd3 Qe7 18.Bg7 Kg7 19.e4 Qe5 20.f4 Qd4 21.Kh1 f5! 22.ef5 Re3 23.Rbe1?? (better is 23.Rbd1–+) 23...Qd3 (23...Rd3?! 24.Qe2 Bf5 25.Qe7 Kh8 26.Qb7–+) 24.Qd3 Rd3 25.Re7 Kf6 26.Rh7 Bf5 27.h3 Be4 28.Kg1 (28.Re1 Rd4–+) 28...Rg3 (28...Nc4 29.Rb7 Bd5 30.Rd7–+) 29.Rf2 (29.Re1 Re8 30.Re2 Nc4–+) 29...Nc4 30.Kh2 Rg2! 31.Rg2 Bg2 32.Kg2 Ne3 (32...b6!? 33.Kf2–+) 33.Kf3 Nd5 34.Rb7 Rc8 (better is 34...Rh8 35.Kg3 c4–+) 35.Ra7 (35.a4–+) 35...c4 36.Ra5 (36.Ra6 c3 37.Rd6 Kf7 38.Rd7 Ke6–+) 36...c3 37.Ra6 Ke6 38.b6 (38.Ra4 c2 39.Re4 Kf5–+) 38...Nb6! 39.Rb6 c2 40.a4 (40.Rb3 c1Q 41.f5 gf5 42.Re3 Kf6 43.Re2 Qf1 44.Ke3 f4 45.Kd2 Qc1 46.Kd3 Qc3 47.Ke4 Rc4 48.Kd5 Qd3) 40...c1Q (40...Rc3 41.Kg4 c1Q 42.Rb1 Qb1 43.Kh4 Qf5 44.a5 Qf4) 41.Kg4 Qg1 (41...Qg1 42.Kf3 Rc3 43.Ke2 Re3 44.Kd2 Qf2 45.Kd1 Re1) 0–1. Puche Rodriguez,Pedro – Aguirre Lorenzo,Luis (1955), Torneo de Primavera Fundacion CajaCanar, 2016. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 c6 5.e3 a5)

6.b5 cb5

7.cb5 0-0 8.Be2=.

7.cb5 a4 8.Be2 0-0 9.0-0 d6 10.a3 Nbd7 11.Nc3 Nb6 12.d3 Bd7 13.Qd2 Ne8 14.Rab1 Nc7 15.Rfc1 e5 16.d4 Bf5 17.e4 Bg4 18.de5 Bf3 19.Bf3 Nc4 20.Qe2 Nb2 21.Rb2 Be5 22.Rbb1 Ne6 23.Nd5 Nf4 24.Nf4 Bf4 25.Rc4 Qb6 26.Qc2 Ra5 27.Ra4 Rb5 28.Rb5 Qb5 29.g3 Be5 30.Rb4 Qc5 31.Qa4 b6 32.Be2 Qa5 33.Qa5 ba5 34.Rb5 Ra8 35.a4 Bc3 36.Rb7 Bd4 37.Bc4 Ra7 38.Bf7 Kg7 39.Ra7 Ba7 40.Bd5 Kf6 41.Kg2 g5 42.Kf3 Bc5 43.Bc6 h6 ½–½. Smyslov – Fernandez Garcia, Buenos Aires 1990.

7.cb5 d6 8.d4 0-0 9.Be2 Nbd7 10.0-0 Nb6 11.Nbd2 Bf5 12.Qb3 Ne4 13.Qa3 Nd2 14.Nd2 d5 15.Rac1 Qd7 16.Bc3 Qd6 17.Qd6 ed6 18.Nb3 Rfc8 19.a3 a4 20.Nd2 Bf8 21.Bb4 Bc2 22.Nb1 Bb3 23.Rc8 Rc8 24.Nc3 Ra8 25.Rc1 f5 26.g3 Kf7 27.Kg2 Ke8 28.g4 Kd7 29.gf5 gf5 30.Bd3 Ke6 31.Kf3 Bh6 32.Rg1 Rf8 33.Ke2 Bc4 34.Rg3 Bd3 35.Kd3 f4 36.Rh3+– Rf6 37.Ba5 fe3 38.fe3 Nc4 39.Nd5! Nb2 40.Ke4 Rg6 41.Nf4 Bf4 42.d5 Kf7 43.ef4 (43.ef4 Nc4 44.Rh7 Kg8 45.Rb7 Na5 46.Ra7+–; 43.Kf4?! Nd3 44.Kf3 Ne5 45.Ke4 h6+/-) 1–0. Vladimirov,Evgeny (2580) – Fernandez Aguado,JL (2285), URS–ESP mT Logrono, 1991.

7.cb5 d6 8.Be2 Nbd7 9.0-0 a4 10.Na3 Nb6 11.Rc1 0-0 12.Bd4 Nbd5 13.Nc4 Bd7 14.Rb1 h6 15.Qc2 e5 16.Bb2 Bb5 (16...Nb4!? 17.Qd1 Bf5=) 17.Be5= Ba6 18.Bf6 Qf6 19.Rfe1 Qe6 20.Nb6 (worse is 20.Qa4 b5 21.Rb5 Bb5 22.Qb5 Ra2-/+) 20...Be2 21.Re2 Nf4 22.Ree1 Ng2 23.Kg2 Qg4 24.Kf1 Ra5 25.Qd1+/- Rf5 26.Ng1 Qh4 27.Qe2 Qh2 28.f3 Qh4 29.Rb5 Be5 30.d4+– Bg3 31.Rf5 gf5 32.Rc1 f4 33.e4 Kh8 34.e5 Bh2+/- 35.Qg2 Bg1= 36.Kg1 Rg8 37.Rc8 Qe1 38.Kh2 Qh4 ½–½. Espig,Lutz – Uhlmann,Wolfgang, Leipzig SGL, 1972.

7.cb5 d6 8.Be2 Nbd7 9.0-0 Nb6 10.Na3 0-0 11.d3 e5 12.Nc4 Be6 13.Nfd2 Nfd5 14.Rc1 Qe7 15.Ba3 Rfd8 16.Nb6 Nb6 17.Nc4 Nc4 18.dc4 Rac8 19.Qd2 b6 20.Rfd1 Qh4 21.g3 (21.Bd6? Bf8–+) 21...Qe4 22.Qd3 Qd3 23.Bd3 (worse is 23.Rd3 A) 23...Bc4?! 24.Rdc3 d5 25.e4= (worse is 25.Bc4 e4 26.R3c2 dc4-/+); B) 23...Rc4 24.Rdc3 Rc3 25.Rc3 Ba2-/+) 23...d5 24.cd5 Rc1 25.Rc1 Bd5 26.Bc4 Bf3 27.Bb3 Bf8 28.Bb2 Bd6 29.Kf1 Kf8 30.a3 f6 31.Ke1 Bc5 32.Bd1 Rd1 33.Rd1 Bd1 34.Kd1 a4 35.Kc2 Ke7 36.Kd3 Ke6 37.f3 Kd5 38.e4 Kd6 39.Kc4 Bg1 40.h3 Bf2 41.g4 Bc5 42.Bc1 Ke6 43.Bb2 h5 44.Bc1 hg4 45.hg4 Kd6 46.Kd3 Ke6 47.Kc4 Kd6 ½–½. Juroszek,Tadeusz (2385) – Szelag,Marcin (2470), Poland–chT 1st League, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6 5.e3 a5)

5.e3 d5

6.Na3 0-0 7.Be2 Bf5 8.0-0 Nbd7 9.Nd4 Be6 10.Ne6 fe6 11.d4 Ne8 12.Qb3 Nd6 13.Nb1 b5 14.cb5 cb5 15.a4 a6 16.Bg4 Nf5 17.ab5 ab5 18.Ra8 Qa8 19.e4 Nf6 20.ef5 Ng4 21.fg6 hg6 22.h3 Nh6 23.Nd2 Nf5 24.Qd3 Qa2 25.Bc3 Nd6?? 26.Ra1+– (26.Ra1 Qa1 27.Ba1+–; 26.Qg6?! Rf6 27.Qd3 Qa8+–) 1–0. Spiridonov,Nikola (2400) – Trinh,Rene (2210), Belfort op, 1989.

6.d4 a5 7.b5 0-0 8.a4 Bg4 (8...Bf5 9.Nh4 Be4 10.cd5 Bd5 11.Nc3=) 9.Nbd2 Ne4 (9...Bf5 10.h3+=) 10.cd5 Nd2 11.Qd2 (11.Kd2 Weaker is 11...Qd5 12.Bd3 Rd8-/+) 11...Bf3 12.gf3 Qd5 13.Be2 (13.Rg1 Qf3 14.Qd1 Qf5=) 13...Rd8 14.Qc2 (14.Bc3 b6=) 14...Nd7 15.bc6 bc6 16.0-0 Rab8 (16...Qg5 17.Kh1 c5 18.dc5 Bb2 19.Qb2=) 17.Bc3 c5 18.Rfd1 Rdc8 19.Qd2 cd4 20.Bd4 Qg5 21.Kh1 Bd4 22.Qd4 Nf6 23.Rab1 Rb1 24.Rb1 e5 25.Qd6 Kg7 26.Qd1 Qh4 27.Kg2 Qg5 28.Kh1 e4 29.f4 Qh4 30.Kg2 g5 31.fg5 Qg5= 32.Kh1 Qh4 33.Qg1 Kh8 34.Qg3 Qg3 35.hg3 Rc2 36.Rb6 Kg7-/+ 37.Ba6 Rf2 38.Rb5+= Rf3 39.Kg2 Re3 40.Ra5 Ra3 41.Bc4 Rc3 42.Be2= Rc2 43.Kf1 Nd7 44.Rd5 Nb6 45.Re5 Na4 46.Re4 Nc3 47.Rg4 Kf8 48.Bf3 Nb1 49.Rf4 Nd2 50.Ke2 Rb2 51.Bd5 Ne4 52.Kf3 Ng5 53.Kg4 h6 54.Ra4 Rf2 55.Rf4 Rd2 56.Bb3 Kg7 57.Ra4 Kg6 58.Kf4 Rf2 59.Ke5 f6 60.Kd6 h5 61.Rh4 Rg2 62.Ba4 Nf7 63.Ke7 Rg3 64.Bd1? Re3–+ 65.Kf8 Re5 66.Bc2 Kg5 67.Rh1 Nh6 68.Rg1 Ng4 69.Kf7 f5 70.Ra1 Rc5 71.Bd1 h4 72.Be2 Rc2 73.Bf1 Rh2 74.Ra3 Rf2 75.Ba6 Rf3! 76.Ra1 h3 77.Bb7 Rg3 78.Ra8 h2 79.Rh8 Rg1 80.Rg8 Kf4 81.Rh8 Kg3 82.Ke6 f4 83.Kf5 Re1 84.Rh7 Re5 85.Kg6 f3 86.Rh8 f2 87.Rf8 Re6 88.Kg5 Rf6! (88...Rf6 89.Rf6 Nf6 90.Kf5 f1Q 91.Ke6 Qc4 92.Kf6 Qd4 93.Ke6 Qb6 94.Kf7 Qb7 95.Ke6 h1Q 96.Kf6 Qhf3 97.Kg6 Qfc6 98.Kh5 Qbb5) 0–1. Romero Leon,Antonio (2175) – Mascaro March,Pedro (2355), Mallorca–chT, 2002. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 c6 5.e3 d5)

6.d4 a5 7.b5 cb5 8.cb5 a4 9.Nbd2 0-0 10.Be2 Bg4 11.0-0 Nbd7 12.Rc1 Qb8 (12...Qb6 13.Bd3+=) 13.h3 Bf3 14.Nf3 (worse is 14.gf3 Rc8=) 14...Rc8 15.Qd3 e6 16.Rc8 Qc8 17.Rc1 Qd8 18.Qc2 Bf8 19.Qc7 a3 20.Qd8 Rd8 21.Ba1 Bd6 22.Ne5 Kf8 23.f3 Ke7 24.Kf2 h5 25.h4 Nb6 26.Nd3 Nfd7 27.e4 Ke8 28.e5 Be7 29.g3 Rc8 30.Rc8 Nc8 31.Bc3 Ndb6 32.Nc5+/- Na7 33.Nb7+– Nc4 34.b6 Nb6 35.Na5 Na4 36.Be1 Kd7 37.Ke3 Kc7 38.g4 hg4 39.fg4 Kb6 40.h5 Nb5? 41.Bb5+– Kb5 42.Nb7 gh5 43.gh5 Nb6? 44.Kf4 Nd7? 45.Nd6 Bd6 46.ed6 f6 47.h6 Nf8 48.h7! Kc6 49.h8N Kb5 50.Ke3 Kc4 51.Ng6! Nd7 52.Nf4 e5 53.Ne6 ed4 54.Nd4 Kc5 55.Nf5 Ne5 56.Bc3 Nc4 57.Kd3 Nd6 58.Bb4! Kb4 59.Nd6 Kc5 60.Nf5 Kb4 61.Kd4 Kb5 62.Ne7 Ka4 63.Nd5 f5 64.Ke5 Kb5 65.Kf5 1–0. Flores,Diego (2565) – Kristjansson,Stefan (2470), 38th Olympiad, Dresden GER, 2008.

6.Be2 Bg4 7.0-0 e6 (7...Bf3 8.Bf3 dc4 9.Na3=) 8.Qb3 dc4 9.Qc4 Nbd7 10.h3 Bf3 11.Bf3 Qc7 12.d4 0-0 13.Nd2 Nb6 14.Qc2 Nbd5 15.b5 cb5 16.Qc7 Nc7 17.Bb7 Rab8 18.Bc6 (18.Bf3 Rfc8+=) 18...Ncd5= 19.Ba3 Rfc8 20.Bd5 Nd5 21.Nb3 b4+= 22.Bb2 Rc2 23.Rab1 Nc3 24.Bc3 bc3 25.a4 Bf8 26.Na1 Rcb2–+ 27.Rbc1 Bb4 28.Nc2 a5 29.Rfd1 Ra2 30.e4 Ra4 31.d5 ed5 32.ed5 Ra2 33.d6 Rd8 34.d7 Kf8 35.Nd4?? Rd2 36.Nf3 R2d7 37.Re1 Rd3 38.Kh2 Ba3 39.Rc2 Bb2 40.Re4 Ra8 41.Ra4 Rd1 42.Ra2 Ra1 43.Rcb2 cb2 44.Rb2 a4 45.Nd2 a3 46.Rb7 a2 47.Kg3 Rd1 48.Nb3 a1Q 49.Na1 Raa1 50.Rb8 Kg7 51.Rb4 Ra3 52.f3 Rd2 53.Rg4 Raa2 54.Kh2 h5 55.Rg3 Kh6 56.h4 f5 57.Kh3 Ra5 58.Rg5 Kg7 59.Kh2 Kf6 60.Rg3 f4 61.Rh3 Raa2 62.Kh1 Rg2 63.Rg3 fg3 64.f4 Rgf2 65.f5 Rab2 66.fg6 Rbc2 67.g7 Rc1# (67...Rf1#) 0–1. orangutanb4 (2000) – koleos73 (1715), kurnik, 2011.

6.h3 0-0 7.Na3 Qb6 8.Bc3 Ne4 9.Bg7 Kg7 10.Rb1 a5 11.b5 Qc5 12.Qc1 Qd6 13.bc6 bc6 14.cd5 cd5 15.Nb5 Qd8 16.Be2 Ba6 17.0-0 Nd7 18.Qa3 Ndf6 19.d3 Bb5 20.Rb5 Qd6 21.Qb2 Nc5 22.Rb1 Rfc8 23.Rb6 Qc7 24.Qa3 e6 25.Nd4 Nfd7 26.Rc6 Qd8 27.Rc1 Rc6 28.Nc6 Qb6 29.Qc3 f6 30.Nd4 Rb8 31.Nb3 Nb3 32.ab3 Ne5 33.d4 Nf7 34.Bd1 Qb4 35.Qb4 Rb4 36.Kf1 e5 37.de5 Ne5 38.Rc7 Kh6 39.g4 g5 40.Bc2 Ng6 41.Rd7 a4 42.ba4 Rc4 43.Bg6 Kg6 44.a5 Rc5 45.a6 Ra5 46.a7 Ra2 47.Ke1 h5 48.Kd1 f5 49.gf5 Kf5 50.Rd5 Ke4 51.Rg5 Ra7 52.Ke2 Ra2 53.Kf1 h4 54.Rg4 Kf3 55.Rf4# 1–0. Speelman,J – Gormally,D, Birmingham, 2000.

5.e3 d6

6.d4 a5 7.b5+= a4 8.Be2 Ne4 9.0-0 Nd7 10.Qc2 d5 11.Na3 0-0 12.Bd3 Nd6 13.Be2 (13.bc6 bc6 14.c5 Ne8+=) 13...cb5 14.cb5 Nb6 15.Rfc1 Be6 16.Qc5 f6 17.Qb4 Re8 18.Rc2 Bf7 (18...Bf5!? 19.Rc3 Bf8=) 19.Rac1+= Bf8 20.Qe1 Qb8 21.Nd2 Rc8 22.Rc8 Ndc8 23.h3 Nd6 24.Bd3 ½–½. Fleuch,Hans Juergen (2135) – Portisch,Ferenc (2385), Harkany Tenkes Cup, 1999.

6.d4 a5 7.b5 cb5 8.cb5 Bg4 9.Be2 Nbd7 10.Nc3 Rc8 11.0-0 Nb6 12.Nd2 Be2 13.Qe2 Nfd5 14.Rac1 0-0 15.Nd5 Nd5 16.Qf3 Rc1 17.Rc1 Nb4 18.Qb7 Na2 19.Rc7 Bf6 20.Nc4 Qa8? (better is 20...Nb4+/-) 21.Qa8+– Ra8 22.b6 Rb8 (22...Nb4 23.b7 Rf8+–) 23.b7 Kg7 24.Na5 Nb4 25.Rc4 (25.Rc8 Rb7 26.Nb7 h6+–) 25...Na6 26.Rc6 Nc5 27.dc5 Bb2 28.Rc8 Rb7 29.Nb7 dc5 30.Nc5 Ba3 31.g3 Bb4 32.Kg2 Ba3 33.f4 Bb4 34.Kf3 Ba3 35.e4 Bb4 36.Rc7 Ba3 (36...Bc5 37.Rc5 h5 38.Rc7+–) 37.Ke3 (37.Nd3 Bd6 38.Rd7 Kf6 39.e5 Ke6+–) 37...Bb4 (37...Bc5 38.Rc5 h5 39.h3+–) 38.Kd3 (38.Nd3!? Ba5 39.Re7 Bb6 40.Kf3 Kf8+–) 38...Kf8 39.g4 e6 (39...h6 40.e5+–) 40.e5 (40.Nd7!? Kg8+–) 40...h5 41.gh5 gh5 42.Nd7 Kg7 43.Nf6 Be1 44.Nh5 Kg6 45.Ng3 Bf2 46.Ke4 Bg1 47.h3 Bh2 (47...Bb6 48.Rc6 Bf2 49.f5 Kg5 50.fe6 fe6 51.Ne2+–) 48.Ne2 f5 (48...Kg7+–) 49.Kf3 (49.Kf3 Kh6 50.Nd4 Kh5 51.Ne6 Kg6 52.Nf8 Kh5 53.Rh7) 1–0. Bennett,Hilton Petrie (2065) – Gautam,Asheesh (1800), Fiji–ch Inv Suva, 2003. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 c6 5.e3 d6)

6.Be2 Na6 7.b5 cb5 8.cb5+=.

6.Be2 Qb6 7.Bc3 (7.a3 0-0=) 7...0-0 8.0-0 e5 (8...c5 9.bc5 dc5 10.d4=) 9.d3 (9.c5 dc5 10.bc5 Qc5 11.Be5 Qe7=) 9...Nbd7 (9...Bf5 10.Nbd2=) 10.Nbd2+= Re8 11.Qc2 (11.a4 c5+=) 11...d5 (11...c5 12.a3+=) 12.Rab1 (12.a4 Qc7+=) 12...Qc7= 13.Ba1 (13.Rfc1 Nb6+=) 13...a5 (13...Nb6 14.Rfc1=) 14.a3 (14.b5 cb5 15.Rb5 b6+=) 14...ab4 (14...dc4 15.dc4 ab4 16.ab4=) 15.ab4 h6 16.Rfc1 e4 17.de4 de4 18.Nd4 b6 19.Bc3 h5 20.Ra1 Bb7 21.Ra8 Ba8 22.Ra1 Nf8 23.Ra3 Ng4 24.Nf1 Be5 25.Bg4 hg4 26.Ne2 Bd6+= 27.Neg3 c5 28.b5 Nd7 29.Qd1+/- Bg3 30.Ng3+– Ne5 31.Be5 Qe5 32.Qd7 Rf8+/- 33.Nf1 Qb2 34.Ra6 Qc3 35.Rb6 Qc4 36.Rd6 Qb4 37.b6+– c4 38.Qe7 Qb1 39.Rd8 Rd8 40.Qd8 Kh7 41.Qa8 c3 42.b7 c2 43.Qc8 1–0. Espig,Lutz – Pinter,Jozsef, Budapest (Hungary), 1975.

6.Be2 Qc7 7.0-0 0-0 8.Nc3 b6 9.Rc1 Bb7 10.a4 a6 11.Qb3 Nbd7 12.b5 ab5 13.cb5 c5 14.h3 d5 15.d3 e6 16.Nd2 h5 17.Bf3 Ne5 18.Be2 Nd3 (better is 18...Rfc8=) 19.Bd3+/- c4 20.Nc4 dc4 21.Bc4 Rac8 22.Be2 Qb8 23.Rfd1 Nd5 24.Nd5 Bd5+= 25.Qa3 Be5 26.Be5+/- Qe5 27.Qa1 Qg5 28.Bf1 h4 29.a5 Bb7? 30.ab6 Ra8 31.Qd4 e5 32.Qd7 Be4 33.Qg4 Qg4 34.hg4 Rab8 35.Rd6 Rb7? 36.Rc7 Rfb8 37.Rdd7 Rb6 38.Rf7 Bd5 39.Rg7 Kf8 40.Rh7 (40.Rh7 Kg8 41.e4+–) 1–0. orangutanb4 (1920) – feniksi (1690), kurnik, 2011.

6.Be2 Qc7 7.0-0 0-0 8.Nc3 b6 9.Rc1 Bb7 10.a4 a6 11.Qc2 Nbd7 12.d4 e6 13.Nd2 Rac8 14.Bf3 d5 15.c5 b5 16.ab5 ab5 17.Ra1 Ra8 18.Nb3 e5 19.Na5 e4 20.Be2 h5 21.f4 ef3 22.Rf3 Ng4 23.h3?? Qh2 24.Kf1 Qh1 0–1. orangutanb4 (1930) – feniksi (1680), kurnik, 2011.

6.Be2 e5 7.d4 e4 8.Nfd2 0-0 9.Nc3 Re8 10.g4 h6 11.h4 d5 12.c5 b6= 13.Nf1 Ba6 14.b5 Bc8 15.Na4?? cb5-/+ 16.Nc3 a6 17.f3 bc5–+ 18.Qc2?? cd4 19.ed4 ef3 20.0-0-0 fe2 21.Ne2 Ng4 22.Nfg3 Ra7 23.h5 Rc7 (24.Nc3 Ne3–+) 0–1. Dopper,Johan – Stoel,SJ, 1991.

6.Bf6 Bf6 7.d4 c5=.

5.e4 0-0

6.d3 d5 7.e5 Ng4 8.h3 Nh6 9.Be2 dc4 10.dc4 Qc7 11.Qc1 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Na6 15.Bc3 c5 16.b5 Nb4 17.Bb4 cb4 18.Qb2 Qc5 19.0-0 Nf5 20.Nbd2 Ng3 21.Re1 Ne2 22.Re2 Be6 Attacking the backward pawn on c4 23.Nb3 (23.Re4!?=) 23...Qc4=+ 24.Nbd4 b3 25.Ne6 Qe6 26.Nd4 (26.Re3!?=) 26...Qc4-/+ 27.b6? (better 27.Re3 Rd8 28.Nf3-+) 27...Rd8-+ 28.Nb3 (28.Re4-+) 28...Rd1 29.Kh2 Qf4 30.g3 Qf3 (30...Qf3 31.Re1 Re1 32.Nc5 Rh1) 0-1. Marcos Herrero,F (1885) - Merayo Estevez,Victor, 7th Chamartin Open, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 c6 4.Bb2 Bg7)

6.e5 Ne8 7.d4 d6 8.Nbd2 de5 9.de5 Bf5 10.Qb3 Nc7 11.Be2 Nd7 12.0-0 (12.Rd1 a5=) 12...Ne6 (12...Ne5 13.Rad1 Nf3 14.Nf3=) 13.Nh4 (13.Rad1 Qc7=) 13...Be5 14.Nf5 Bb2 (14...gf5 15.Nf3 Bb2 16.Qb2=) 15.Ne7 (15.Nh6!? Kg7 16.Nf7 Kf7 17.Qb2+=) 15...Qe7= 16.Qb2 Nf4 17.Bf3 Ne5 18.a3 (18.Qc3!?+=) 18...Qg5-/+ 19.Qc3 Rad8 (19...Qg2! 20.Bg2 Ne2 21.Kh1 Nc3-/+) 20.Ne4+= Qf5 (worse is 20...Nf3 21.Qf3 Qf5 22.Rad1 Nh3 23.Qh3 Qe4 24.Qc3+=) 21.Ng3 (21.Rae1 Nf3 22.Qf3 Nd3+=) 21...Qf6 (21...Nf3!? 22.Qf3 Nh3 23.Kh1 Qf3 24.gf3 f5-/+) 22.Ne4= Qf5 23.Ng3 Qf6 (23...Nf3!? 24.Qf3 Nh3 25.Kh1 Qf3 26.gf3 f5-/+) 24.Ne4= Qg7 25.Rad1 Nf3 (25...f5!? 26.Nd6 Nfd3 27.Rd3 Nf3 28.Rf3 Qc3 29.Rc3 Rd6=) 26.Qf3+= Ne6 27.Kh1 Rd1 28.Rd1 (28.Qd1?! Rd8 29.Qc2 f5=) 28...Rd8 29.Rd8 Nd8 30.Qf6 Qf6 31.Nf6 Kg7 32.Ne4 (32.Ne8 Kf8 33.Nd6 Ke7=) 32...f5 33.Nc3 (33.Nd6 Kf6=) 33...Kf6 34.f4 Ne6 35.g3 Nd4 36.a4 Ke6 37.Kg2 (better is 37.Nd1!?+=) 37...Nc2-/+ 38.Kf3 Nb4 39.Ke3 c5 40.Kd2 b6 41.Ne2 Nc6 42.Kd3 Nb4 43.Kd2 ½–½. jackhammer3000 (1790) – spider_1001 (1725), gameknot.com, 2015.

6.e5 Ne8 7.Be2 d6 8.d4 de5 9.de5 Qc7 10.Qd4 b6 11.Qe3 e6 (11...a5 12.ba5 Ra5 13.Bc3+=) 12.0-0+/- Nd7 13.Nbd2 Bb7 14.c5 bc5 15.bc5 Rb8 16.Rfb1 Bh8 17.Bc3 Ng7 18.g4 Rfd8? (18...h5 19.Qh6 Rfd8 20.Nb3 hg4 21.Ba5+–) 19.Ne4 (better is 19.Nc4!? Qc8+–) 19...h5 (19...Ne8 20.Nd6 Nd6 21.ed6+/-) 20.Nf6 Kf8 21.h3 hg4+/- 22.hg4 a5?? 23.Qh6 Ke7 24.Qh4 g5 25.Qg5 Kf8 26.Qh4 Nf5 27.gf5 Bf6 28.ef6 Ke8 29.fe6 fe6 30.Qh5 Kf8 31.Qh8 Kf7 32.Qg7 (32.Qg7 Ke8 33.Qe7#) 1–0. Spicak,K (2085) – Krasenkova,I (2265), Krynica–open A, 1998.

5.e4 Qb6

6.a3 a5 7.c5 Qc7 8.Bc4 ab4= 9.ab4 Ra1 10.Ba1 b5 (10...0-0 11.e5 Ng4 12.Qe2=) 11.Bb3 (11.cb6 Qb6 12.Qb3 0-0=) 11...0-0 (better is 11...Na6=) 12.Ng5 (12.e5!? Ne8 13.0-0+=) 12...h6 (12...Qf4!? 13.h4 Ne4–+) 13.Nf7 Rf7 14.Bf7 Kf7 15.Qf3 d6 16.d4 (16.0-0 Qd7+=) 16...Bg4 (16...Kg8 17.Nd2+=) 17.Qf4 (17.Qe3 Be6+=) 17...g5 (17...Qa7 18.Bc3+=) 18.Qg3 Bh5 (18...Qa7 19.Bc3+=) 19.e5 (19.Nd2 Bg6 20.h4 Qa7+=) 19...de5 (19...Nd5 20.cd6 ed6 21.ed6-/+) 20.de5-/+ Nd5 21.0-0 Na6 22.Qh3 Bg6-/+ 23.Re1 Nab4 24.Nc3? Nc2 25.Nd5 cd5 26.Qf3 Ke8?? 27.Qd5-/+ Ne1 28.e6?? Ba1 29.Qa8+– (29.Qa8 Qd8 30.Qa1 Nf3 31.gf3 Qd1 32.Qd1+–) 1–0. Zorzi – Marletta, 1978.

6.Qb3 d6=.

6.Qb3 Ne4?? 7.Bg7+– Qf2 8.Kd1 Qb6 9.c5 Qc7 (9...Qd8 10.Qe3 Rg8 11.Bd4+– (11.Qe4?! Rg7 12.Be2 d6+/-)) 10.Bc4 d5 11.cd6 ed6 12.Re1 d5 13.Bh8 Be6 14.Qe3 Nd7 15.Bb3 0-0-0 16.Bb2 Kb8 17.d3 Nd6 18.Nbd2 Re8 19.Qf4 Rd8 20.Nd4 Re8 21.Ne6 fe6 22.Nf3 Nb6 23.Qd6! Qd6 24.Be5 (24.Be5 Kc7 25.Ng5+–) 1–0. Havlicek,Libor Sr (2125) – Csolto,Tibor (2155), SVK–chT Slovakia, 1994.

4.c4 d5

5.c5 b6 6.e3 bc5 7.bc5 c6 8.d4 Qc7 9.Be2 a5 10.a4 0-0 11.0-0 Bg4 12.Nbd2 Nfd7 13.Ne1 Be2 14.Qe2 Nc5 15.dc5 Bb2 16.Rb1 Ba3 17.Nc2 Bc5 18.Nb3 Bd6 19.g3 c5 20.Ne1 Nc6 21.Nd2 Rfb8 22.Nef3 Rb1 23.Rb1 Rb8 24.Qd3 Rb1 25.Nb1 Nb4 26.Qd1 e5 27.Nc3 d4 28.ed4 ed4 29.Nb5 Qc6 30.Nd2 Be7 31.Qe1 Bf6 32.Nc4 Kg7 33.Na5 Qa6 34.Nc7 Qa5 35.Ne8 Kh6 36.Nf6 Qa4 37.Ng4 Kg5 38.h3 Qd7 39.f4 Kh5 40.Nf6 1–0. hal1958 – manolo_vs, playchess.de, 2002.

5.cd5 Bf5 6.Qb3 Bb1 7.Rb1 Nh5 8.g4 Bb2 9.Qb2 1–0. Bonetti,Shane – guest455, ICC, 2002.

5.e3 (--> 4.e3 d5 5.c4).

5.e3 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5).

5.e4 d6 6.Be2 0-0 7.d3 c5 8.b5 Bb7 9.h4 Nbd7 10.Qc1 a6 11.Nc3 ab5 12.Nb5 Ne4? 13.Bg7 Kg7 14.de4+– Be4 15.h5 Nf6 16.hg6 Bg6 17.Qb2 Rg8 18.Rd1 Kf8 19.Ng5 Ra4 20.Nc3 Ra6 21.Bf3 e6 22.Qd2 Ke7 23.Nb5 d5 24.cd5 Nd5 25.Nh7 Nb4 26.Qg5 (26.Qg5 f6 27.Qf6 Ke8 28.Rd8#) 1–0. Jeric,S (2300) – Harej,Bor, 7th HIT Open, Nova Gorica SLO, 2002.

5.cd5 Qd5

6.Nc3 Qd6 7.a3 0-0 8.Rc1 c6 9.g3 (9.d4 Bg4=) 9...Bf5 10.Bg2 Nd5 11.Qb3 Nd7 (11...Nc3 12.Bc3 e5 13.b5=) 12.0-0 (12.Nd5 cd5 13.Bg7 Kg7+=) 12...N7f6 13.Na4 a5 (13...Rfe8 14.Be5 Qd8 15.Nd4+=) 14.Be5+= Qd8 15.d3 (15.b5 cb5 16.Qb5 Bd7+=) 15...Bh6 (15...ab4 16.ab4 Be6 17.Nc5=) 16.Rc2 (16.Ra1 Nd7 17.Bd4 Bg4+=) 16...Be6 (16...ab4!? 17.e4 Bg4 18.ab4 Nd7=) 17.Nc5+= Qc8 (17...ab4 18.Ne6 fe6 19.ab4+/-) 18.Ne6 (18.ba5 Ra5 19.Ne6 Qe6+/-) 18...Qe6+/- 19.b5 (19.ba5 Nd7 20.Bb2 Rfb8+–) 19...Ng4 (19...a4 20.Qa2 Rac8 21.e4+/-) 20.Bd4 Rfc8 (20...a4 21.Qb2+/-) 21.bc6 Rc6? (better is 21...bc6 22.Qc4 Rab8+/-) 22.Ng5! Bg5 23.Bd5 Qf5 (23...Qd7 24.Bc6 bc6 25.Qb6+–) 24.Bc6 bc6 25.Rc6 Rd8 (25...e5 26.Bc3+–) 26.Qc3 (26.Qb6 e5 27.Bc3 Ra8+–) 26...Qd5 (26...Bd2 27.Qd2 Rd4 28.Qc3+–) 27.Rc8 e5 (27...Qd7 28.Rd8 Qd8+–) 28.Bb6 Kg7 29.Bd8 (29.Bd8 Bd8 30.Qc5+–) 1–0. Rabrenovic,Vladan (2390) – Djordjevic,Lazar (1920), Serbian Championship Semi–Final, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d5 5.cd5 Qd5)

6.Nc3 Qd6 7.Qa4 Bd7 8.b5 0-0 9.e4 Ng4 10.d4 c6 11.h3 Nh6 12.e5 Qc7 13.Rc1 Qb6 14.Qb4 a5 (better is 14...a6!?+=) 15.Qe7+– Re8 16.Na4 Qc7 (16...Re7? 17.Nb6 Ra7 18.Ba3+–) 17.Qc5 Bf8 18.Qb6 Bb4 19.Bc3 Qc8 20.Bb4 ab4 21.Nc5 cb5 22.Bb5 Bb5 23.Qb5 Ra2 24.0-0 Ra7? (24...Qc6 25.Qb4 Ra7+–) 25.Ne4 (25.Ne4 Nc6 26.d5+–; 25.Qb4?! Nc6 26.Qc3 Qd8+–) 1–0. Shyam,N (2295) – Negi,D (2055), Parsvnath ch–Commonwealth, New Delhi IN, 2007.

6.Nc3 Qd8 7.d4 0-0 8.e4 Bg4 9.Be2 Nc6 10.d5 Nb4 11.Rb1 a5 12.h3 Bf3 13.Bf3 Na6 14.0-0 Nd7 15.a3 e6 16.Qc2 ed5 17.Nd5 c6 18.Bg7 Kg7 19.Ne3 Nac5 20.Nc4 Qc7 21.Rfd1 Rfd8 22.Bg4 Nf6 23.Nb6 Nce4 24.Na8 Ra8 25.Qb2 Nd6 26.g3 b5 27.Kg2 c5 28.Qe5 Nde8 29.Rd5 Qe5 30.Re5 Ng4 31.hg4 b4 32.Rc5 ba3 33.Rb3 a4 34.Ra3 Nd6 35.g5 Ne4 36.Rc4 Ng5 37.f4 Ne6 38.Raa4 Ra4 39.Ra4 h5 40.Kf3 f5 41.Ke3 Kf6 42.Ra6 ½–½. Ahrens,Wolfgang – Prange,Ecki, compuserve, 1998.

6.Nc3 Qd8 7.d4 c6 8.e3 Bg4 (8...Qd6 9.a3+=) 9.Be2 0-0 10.0-0 Nbd7 (10...a5 11.Qb3+=) 11.Rc1 Rc8 (11...Nb6 12.a3+=) 12.a3 Re8 (12...Nb6 13.Qd3+=) 13.Qb3 Nb6 (13...e5 14.Ne5 Ne5 15.de5 Re5 16.Rfd1+=) 14.Ne5 Be6 15.Qc2 Nbd5 16.Bf3 Nd7 (16...Nc3 17.Bc3 Qd6 18.Qa4+=) 17.Na4 (17.Nd5 Ne5 18.Ne7 Qe7 19.de5 Rcd8+/-) 17...f6 (17...Rb8 18.Rfd1+=) 18.Nd7+/- Qd7? (better is 18...Bd7 19.Nc5 Rc7+/-) 19.Nc5+– Qd6 20.Nb7 Qc7 21.Nc5 Bf7 22.Rfd1 e6 23.e4 Ne7 24.Be2 Bh6 25.Rb1 Bf4 26.g3 Bh6 27.f4 Bg7 0–1. bschardein (2605) – mic (2140), net–chess.com, 2006.

6.Nc3 Qd8 7.d4 Nd5 8.e4 Nc3 (8...Nb4? 9.Qa4 N8c6 10.d5+–) 9.Bc3 0-0 10.Qd2 Nd7 11.Qb2 e6 12.h4 Qe7 13.h5 Re8 (13...g5!?+=) 14.hg6+/- fg6 15.Bc4 Kh8 16.Qd2 e5? (better is 16...Kg8!?+/-) 17.Ng5+– h5 18.Nf7 (18.Bf7!? Bh6 19.Bg6 Kg7 20.Be8 Bg5+–) 18...Kh7 19.de5 Nf8 20.f4 Ne6 21.Be6 Be6 22.Ng5 Kg8 23.Ne6 Qe6 24.Qd5 c6 25.Qe6 Re6 26.Rd1 Re7 27.Rd6 Kf7 28.e6! Kg8 29.Bg7 Kg7 30.Ke2 Rae8 31.f5 Kf6 32.Rf1 Ke5 33.Rd7 gf5 34.ef5 Rd7 35.ed7 Rf8 36.Rf3 Kf6 37.Rh3 Rd8 38.Rh5 Rd7 39.g4 Rd4 40.Rh6 Kg7 41.Rg6 Kf7 42.a3 Rf4 43.Ke3 Rf1 44.Ke4 Ra1 45.Rd6 Ke7 46.Rh6 Ra3 47.Rh7 Kf6?? 48.Rb7 Ra4?? 49.Kf4 c5 50.g5 1–0. Kastelein,Gerard (1755) – De Wijs,Robbert, NBSB–chB Roosendal rapid, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d5 5.cd5 Qd5)

6.Nc3 Qd8 7.e3 0-0 8.b5 a6 9.a4 ab5 10.ab5 (worse 10.Nb5 Nbd7-/+) 10...Ra1 11.Qa1 Bf5 12.d4 Nbd7 13.Be2 Nb6 14.0-0 Be6 15.Ne5 Nfd7 16.Na4 Na4 17.Qa4?? (better 17.Nd7 Qd7 18.Qa4=) 17...Ne5-+ 18.de5 (18.Rc1 Ng4-+) 18...Qd2 19.Ba3 Qe2 20.Be7 Bc4 21.Rb1 Re8 22.Bf6 Bf6 23.ef6 Rd8 (23...Qd3 24.Rc1 Bb5 25.Qf4-+) 24.h3 h5 25.Rc1 (25.Kh2-+) 25...Bb5 (25...Rd2 26.Kh1 Qf2 27.Rg1-+) 26.Qf4 (26.Qh4 Bc6 27.Kh2-+) 26...Kh7 (better 26...Rd1 27.Rd1 Qd1 28.Kh2 Qd6-+) 27.Rc7 Qd1 28.Kh2 Rd7 29.Rc5 (29.e4 Bc6-+) 29...Bc6 30.Rh5 (30.Re5-+) 30…Qh5 0-1. Lemus Pena,Macarena (1755) - Ruiz Olate,Emily Andrea (1890), ch-CHI Women, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d5)

6.Nc3 Qd8 7.g3 0-0 8.Bg2 Nd5 9.Qb3 Nb6 10.d3 a5 11.a3 Be6 12.Qd1 Nd5 13.Qc1 ab4 14.ab4 Ra1 15.Qa1 Nb4 16.0-0 N8c6 17.Nb5 Bb2 18.Qb2 Na6 19.Rd1 Na5 20.Nfd4 Bc8 21.Ra1 b6 22.Na7 Bd7 23.Nac6 Bc6 24.Nc6 Nc6 25.Bc6 Qd6 26.Bg2 Nc5 27.d4 Ne6 28.e3 c5 29.d5 Nc7 30.e4 e5 31.f4 f6 32.Rf1 c4 33.Bh3 b5 34.Be6 Ne6–+ 35.de6 Qd4 36.Rf2 Qb2 37.Rb2 Rb8 (37...Rb8 38.Kf2 c3–+) 0–1. Bossi,Alessandro – Palit,Somak, Livigno ITA, 2011.

6.e3 0-0 7.Be2 Bf5 8.d3 Qd7 9.0-0 Rd8 10.e4= Be6 11.Qc2 Nc6 12.a3 a6 13.Nbd2 Ng4 14.Bg7 Kg7 15.Qc3 Kg8 16.Rac1 Rac8 17.h3 Nf6 18.Rfd1 Nd4 19.Nd4 Qd4 20.Nf3 Qc3 21.Rc3 Nh5 22.Rdc1 c6 23.Bf1 Rd6 24.g3 Rcd8 25.Kg2 Ng7 26.a4 f5 27.Rb1 fe4 28.de4 Rd1 29.Rcc1 Rc1 30.Rc1 Bb3 31.b5+= Ba4 32.ba6+/- ba6 33.Ba6 Rd1 34.Rc5 Kf8 35.Be2 Rb1 36.Ra5+/- Rb4 37.Ra8 Kf7?? 38.Bc4! e6 39.Ra7 Kf8+/- 40.Ne5 Bc2 1–0. Markowski,T (2605) – Dzionk,A (1845), 8th Amplico AIG Life Rapid, Warsaw Poland, 2008.

6.g3 0-0 7.Bg2 Nc6 8.Nc3 Qh5 9.b5 Nb4 10.Qb3 c5 11.bc6 Nc6 12.Rb1 Rb8 13.h3 Rd8 14.g4 Qa5 15.Qa3 Qc7 16.Nb5 Qf4 17.d3 a6?? 18.Bc1+– (18.Bc1 Qf3 19.Bf3 ab5 20.Bf4+–) 1–0. Koskinen,Riku (1970) – Nieminen,Markus, Naantalin Open, 2011.

6.g3 Qh5 7.Bg2 Bh3 8.0-0 (8.Bh3 Qh3 9.Bf6 Bf6=) 8...0-0 9.d3 Ng4 (9...Bg2 10.Kg2 Nc6 11.Qb3=+) 10.Bg7= Kg7 11.Nbd2 Nc6 12.b5 (12.Bh3 Qh3 13.Qc2 Rfd8=) 12...Nce5 (12...Bg2!? 13.Kg2 Qb5=+) 13.Qb3 Rad8 (13...Bg2 14.Kg2 Nf6 15.Rfc1 Nf3 16.Nf3+= (worse 16.ef3 Nd5=)) 14.Rac1 (14.Qc3 Bg2 15.Kg2 Kg8 16.Qc7 Nf3 17.Nf3 Qb5 18.Qe7 Rfe8+/-) 14...Bg2+= 15.Kg2 Nf3 16.Nf3 Rd7 17.h3 Ne5? (17...Nf6 18.Rc2+=) 18.Qb2 (18.Rc5!? f6 19.g4 Qh6 20.Ne5 fe5+-) 18...f6+/- 19.Ne5 Qe5 20.Qe5 fe5 21.Rc5 e4 22.de4 Rf6 (22...Rf7 23.Rfc1+-) 23.Rfc1+- Rd2 24.R1c2 (24.e5 Re6 25.a4 Ra2+-) 24...Rc2+/- 25.Rc2 c6 26.bc6 bc6 (26...Rc6 27.Rd2+/-) 27.f3 (27.e5 Re6 28.f4 Kf7+-) 27...Rd6 (27...e5 28.Rc5 Re6 29.e3+/-) 28.Kf2 (28.e5 Rd5 29.Rc6 Re5+/-) 28...Kf6 29.Ke3 e5 30.Rc5 Ke6? (30...g5 31.Kf2+/-) 31.Ra5 (better 31.f4!?+-) 31...Rd7+/- 32.Ra6 Kd6 33.f4 Re7 34.fe5 Kc5 35.Kf4 h6 (35...Kb5 36.Ra3 c5 37.e6+-) 36.h4 (36.e6 Kd6+-) 36...Kb5+/- 37.Ra3 a5 38.Rb3 Kc4 39.Rd3 c5 (39...Rf7 40.Ke3 c5 41.Rd6+-) 40.Rd5 (40.Rd6 Rf7 41.Rf6 Rg7+-) 40...Kb4 41.h5 c4? (41...gh5 42.Kf5 Combination) 42.hg6+- c3 43.Rd6 (better 43.a3 Kc4 44.Ke3+/- (44.Ra5?? c2-+)) 43...c2? (better 43...Rc7 44.g7! Rg7+/-) 44.Rc6+- Re6 45.Rc2 (45.Re6? c1Q 46.e3 Qf1 47.Kg4 Qe2 48.Kh3 Qh5 49.Kg2 Qg4 50.Rb6 Kc5-+) 45...Rg6 46.Rd2 a4 (46...h5 47.Rd4 Kb5 48.Rd5 Ka4 49.Kf5+-) 47.Rd5 (47.Rd4 Kb5+-) 47...Ka3 (47...Rc6 48.Kf5 Rc7 49.e6+-) 48.Rd6 (better 48.Kf5 Rg8 49.e6 Ka2+-) 48...Rg8 49.Rd2 (49.Rh6?! Ka2 50.Rb6 a3+-) 49...Rf8 50.Kg4 Rg8 (50...Kb4 51.Rd4 Kb5 52.Kh5+-) 51.Kh5 Rg5 (51...Kb4 52.e6 Re8 53.Rd6+-) 52.Kh6 Re5 53.g4 Re4 54.g5 Rh4 55.Kg6 (55.Kg7 Kb4+-) 55...Rh1 56.Kf7 Rb1 (56...Rf1 57.Kg7+-) 57.g6 Rb7 58.Kf6 Rb6 59.Kg5 Rb2 (59...Rb5 60.Kh6 Rb1+-) 60.Rb2 Kb2 61.g7 Ka2 62.g8Q Kb2 63.Qc4 a3 64.Qb4 Ka2 65.e4 Ka1 66.e5 (66.e5 a2 67.Qc3 Kb1 68.e6+-) 1-0. Spiritchaser84 (2140) - ENERGIE73 (2015), Rated Bullet game, lichess.org, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2)

4.c4 Rg8

5.Nc3 c6 6.Rb1 Qb6 7.e3 Qb4 8.a3 Qa5 9.d4 Ne4 10.Qc2 d5 11.Bd3 Nc3 12.Bc3 Qc7 13.0-0 Be6 14.c5 b6 15.cb6 ab6 16.a4 Nd7 17.e4 de4 18.Be4 Bd5 19.Bd5 cd5 20.Rfe1 e6 21.Qd2 Ra4 22.Rb5 Qc4 23.Reb1 Ra2 24.Qf4 h5 25.Qd6 Bf6 26.Rb6 Nb6 27.Rb6 Ra8 28.Rb8 Rb8 29.Qb8 Bd8 30.Ba5 Qc1 31.Ne1 Ke7 32.Qb7 Bc7 33.Bb4 Kf6 34.g3 Rb8 35.Bd2 Qd2 36.Qc7 Qe1 0–1. Evgenii_777 (1675) – erdal626262 (1690), lichess.org, 2020.

5.d4 d5 6.e3 Bf5 7.Be2 Nc6 8.a3 Be4 9.cd5 Nd5 10.Nbd2 f5 11.Ne4 fe4 12.Ng5 Kd7 13.Bc4 e6 14.Qg4 h5 15.Qe6 1–0. Bonetti,Shane – Redemption (1000), ICC, 2002.

5.d4 d6 6.e3+= Nh5 (6...a5 7.b5+=) 7.Nc3 Bg4 (7...Nd7 8.Bd3+/-) 8.Be2 (8.h3 Bd7+/-) 8...Nc6 (8...Nf6 9.0-0+/-) 9.Qa4 (9.b5 Na5+/-) 9...Qd7 10.h3 Bf3 11.Bf3 (11.gf3?! e6+=) 11...Nf612.b5 (better is 12.Qb5 Rb8 13.Qa4+/-) 12...Nd4?? (better is 12...Nd8+/-) 13.ed4+– a5 (13...Qe6 14.Kf1 Qc8+–) 14.Bb7 Ra7 (14...Qe6 15.Ne2 Rb8+–) 15.Bc6 Qc6 (15...Kd8 16.Bd7 Nd7 17.Nd5+–) 16.bc6 Nh5 17.Nb5 Ra6 18.Nc7 (18...Kf8 19.Na6+–) 1–0. MrkT – Legends, internet, 2005.

5.d4 Ne4 6.e3 Nc6 7.b5 Nb4?? (better is 7...Nb8+/-) 8.a3+– (8...Nc6 9.bc6 dc6 10.Bd3+–) 1–0. Wall,Bill – FastFreddie, Internet, 2003.

5.e3 h6+=.

5.e3 d6

6.Be2 Nc6 7.b5 Ne5 (7...Nb8!?+=) 8.Ne5+/- (8.Be5?! de5 9.Ne5 Nd7=) 8...de5 9.Be5 Nd7 10.Bg7 Rg7 11.d4 b6 12.Bf3 Rb8 13.Qa4 Bb7 14.Qa7 (better is 14.Bb7!? Rb7 15.0-0+–) 14...Bf3+/- 15.gf3 Ra8 16.Qb7 Rb8 17.Qc6 f5 18.Nc3 Kf8 19.Nd5 e6 (19...Kf7+–) 20.Nc7 Nf6 (20...Kg8 21.Ne6 Qe7 22.Ng7 Kg7+–) 21.Ne6 Kf7 22.Nd8 Rd8 23.Qb6 Kg8 24.Qd8 Kf7 25.b6 Nh5 26.b7 Rg8 27.Qg8! Kg8 28.b8Q (28...Kf7 29.Rb1 Kg7 30.Rb7 Kh6 31.h4 g5 32.Qd6 Nf6 33.Qf6 Kh5 34.hg5) 1–0. Bonetti,Shane – Redemption, ICC, 2002.

6.Be2 Ne4 7.Bg7 Rg7 8.0-0 e6 9.d3 Ng5 10.Nbd2 Nf3 11.Bf3 (< 11.gf3 e5 12.f4 ef4 13.ef4 Qf6=+) 11...Qf6 12.d4 Nc6 13.Bc6 bc6 14.Nb3 c5 15.dc5 dc5 16.Nc5 Rb8?? (16...e5+–) 17.Qa4 Ke7 (17...Kf8 18.Qa7 Rb4 19.Qc7 Rg8+–) 18.Qa7 Rb4 (18...Rb7 19.Nb7 Bb7 20.Qb7 Qe5+–) 19.Qc7 Ke8 20.Rad1 Qe7 (20...e5 21.Qc8 Ke7 22.Rd7) 21.Qc8 Qd8 22.Qd8 1–0. Bonetti,Shane – Redemption, ICC, 2002.

6.Be2 e5 7.Nc3 (7.d4 ed4 8.ed4 d5+=) 7...h5 (7...e4 8.Nd4=) 8.Ng5 (8.d4 Qe7+=) 8...Nc6 (8...Ng4 9.Nge4=) 9.a3 (9.b5 Na5+=) 9...Qe7 (9...Ng4 10.h4=) 10.Qb3 (10.0-0 Bg4+=) 10...Bg4 11.c5 (11.f3 Bf5=) 11...Be2 12.Ne2 Ng4 (12...d5 13.f4=) 13.Ne4 Bh6 (13...dc5 14.Nc5 0-0-0 15.Qc4+=) 14.0-0 (14.b5 Nd8 15.N2c3+–) 14...f5?? (better 14...Nh2 15.Rfc1 Ng4=) 15.Qg8+– Kd7 (15...Bf8 16.cd6 cd6 17.Qg6 Qf7 18.Qf7 Kf7+–) 16.Qa8 fe4 17.Rad1 (17.Qb7 Nf6+–) 17...Qh4 (17...Nd8 18.Qa7 Ke8 19.Nc3+–) 18.h3 Nf6 (18...Nd8 19.hg4 Qg4 20.Nc3+–) 19.d4 (better 19.cd6 Kd6 20.d3 Ne7+–) 19...g5 (19...ed4 20.Nd4 Nd8+–) 20.de5 Ne5 21.Be5 g4 22.Bg3 Qg5 23.Qa7 (23.cd6 c5 24.Qb7 Ke6 25.Qe7 Kf5 26.Qf7 gh3 27.Rd5 Kg4 28.f3 ef3 29.gf3) 23...gh3 24.gh3 (24.cd6 cd6 25.Rd6 Ke8 26.Qb7 Qg7 27.Qc8 Kf7 28.Qe6 Kg6 29.Qe4 Kf7+–) 24...h4 25.Qa4 (25.c6 Ke6 26.Nf4 Ke7 27.cb7 Nd7 28.Nd5 Kf7+–) 25...c6 (25...Ke7 26.cd6 cd6 27.Rc1+–) 26.f4 (26.Rd6 Ke7 27.Qa8 Kf7+–) 26...Qg7 27.Rd6 Ke7 28.Qa7 (28.Qa8 hg3 29.Qb7 Kf8 30.Rd8 Ne8 31.Qc6 Qe7 32.Qh6 Kf7+–) 28...hg3 29.Qb7 Kf8 30.Rd8 Ne8 31.Qc6 g2 32.Qe8 1–0. OnlyPolishOpening (1840) – mehdi168 (1845), lichess.org, 2020.

4.d3 0-0

5.e4 c5 6.b5 Qa5 7.Nc3 Ng4 8.Qd2 Ne5 9.Ne5 Be5 10.f4 Bd4 11.a4 a6 12.Rd1 ab5 13.ab5 d6 14.Be2 Nd7 15.Ra1 Qa1 16.Ba1 Ra1 17.Bd1 Nf6 18.Nd5 Nd5 19.ed5 Bg4 20.c3 Bc3 21.Qc3 Rd1 22.Kf2 Rh1 23.d4 b6 24.dc5 bc5 25.g3 Bf5 26.Qc4 Rb1 27.Kf3 Rb8 28.g4 Bd7 29.h4 Bb5 30.Qc2 Bd7 31.Kg3 R1b3 32.Kf2 Rb2 0–1. Adjailton (1840) – BigJob28 (1790), lichess.org, 2020.

5.e4 Ng4 6.Bg7+= Kg7 7.d4 d6 (7...d5 8.e5+=) 8.c3 (8.Bc4 c6+=) 8...Nf6 (8...e5 9.Bd3=) 9.Nbd2 (9.Bd3 a5+=) 9...a6 (9...c5 10.Bd3+=) 10.a4 (10.Bd3 c5+=) 10...a5 (10...Bg4 11.Bd3+=) 11.b5 b6 (11...Bg4 12.Bd3+=) 12.Bd3+/- Bb7 13.0-0 Re8 14.Qc2 e5 15.Rac1 Nbd7 16.Rfe1 Re6 (16...Qe7 17.Rcd1+=) 17.Bc4 (better is 17.Nc4+/-) 17...d5? (better is 17...Re7!?+/-) 18.ed5+– Rd6?? (better is 18...Nd5 19.Qa2 Nf8 20.de5 Re7+–) 19.de5 Ne5 20.Re5 Nd7 (20...Bd5 21.Rce1+–) 21.Re3 Bd5 (21...Nf6 22.Ne4 Ne4 23.Qe4 Bd5 24.Bd5 Rd5 25.Rce1+–) 22.Rce1 (22.Bd5 Rd5 23.c4 Rd6+–) 22...Be6 (22...Nf6 23.Bd5 Nd5 24.Re5+–) 23.Be6 Re6 24.Re6 fe6 25.Re6 (better is 25.Nd4 Nf8 26.Re6+–) 25...Qf8 (25...Nc5 26.Nd4 Qd7+–) 26.Qe4 Nf6 27.Re7 Kg8 28.Qe6 Kh8 29.Rf7 Qd8 (29...Qd6 30.Qd6 cd6 31.Rf6+–) 30.Qf6 (30.Rf6!? Qe8 31.Qc4 Rd8+–) 30...Qf6 31.Rf6 Kg7 (31...Rg8 32.Nd4 Re8 33.Re6+–) 32.Re6 (32.Rc6 Ra7+–) 32...Rd8 (32...Rf8 33.Re7 Rf7 34.Rf7 Kf7 35.Ng5 Kf6 36.Nh7 Ke6 37.Ng5 Kd5 38.h4+–) 33.Re7 Kh6 (33...Kg8 34.Rc7 Rd3 35.Kf1+–) 34.Rc7 Rd5 35.Rc6 (35.g4 g5+–) 35...Rf5 36.Rb6 Rc5 37.Rc6 Rf5 38.Ra6 1–0. brkst – vandoostlo, gameknot.com, 2015.

5.g3 d6 6.Bg2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.d3).

5.h4 d6 6.Nbd2 c6 7.d4 b5 (7...a5!?-/+) 8.e4 Qb6 9.a4 a5 10.Bc3? (better is 10.ab5!? cb5 11.ba5 Ra5 12.Ra5 Qa5 13.Bd3=) 10...ab4-/+ 11.Bb2? (better is 11.Bb4 Ra4 12.Bc3-/+) 11...ba4–+ 12.Nc4 White prepares the advance e5 12...Qa7 13.Bd3 c5 (13...a3!? 14.0-0–+) 14.e5 Ng4 15.h5 cd4 16.Bd4 Qb7 17.ed6 Bd4 18.0-0?? (18.Nd4 Qg2 19.Qf3 Qf3 20.Nf3 ed6 21.Rh4–+) 18...Ba1 19.Qa1 Be6 20.Re1 ed6 21.Nd6 (21.Nh2 Nh6–+) 21...Qb6 22.Qd4 Qd4 23.Nd4 a3 24.hg6 fg6 (24...hg6 25.Ne6 fe6 26.Bc4 Nf2 27.Re6–+) 25.f3 (25.Ne6 a2 26.Ra1 Rf2 27.Nc5–+) 25...a2 26.Ne6 (26.Ra1 Rd8 27.N6b5–+) 26...a1Q 27.Rf1 Qf1! 28.Kf1 (28.Bf1 Rf6 Combination; 28.Kf1 Rf6 Combination) 28...Ra1 (better is 28...Rf6 29.Nc7 Ra1 30.Ke2 Rd6 31.fg4–+) 29.Ke2 Ne5 30.Be4 Rf6 31.Bd5 Kh8 32.Ne8 Rf5 33.g4 (33.Nd6 Rh5 34.f4–+) 33...Ng4! 34.N6c7 (34.fg4 Re5 Double attack (34...Rd5 Discovered attack; 34...Re5 Decoy)) 34...Nf6 (better is 34...Re5 35.Be4 Ra2 36.fg4 Re4 37.Kd3 Rg4 38.Nb5–+) 35.Nf6 Rf6 36.Ne8 (36.Be4 Nc6 37.Kf2 Ra7–+) 36...Rf5 37.Be4 Re5 (37...Rc5!? 38.Nf6–+) 38.Nf6 h5 39.Ke3 h4 40.Kf4 Re6 41.Kg5 (41.Ng4 Kg7 42.Kg5 Rh1–+) 41...Rf6! 42.Kf6 h3 43.Bg6 (43.Kg6 h2 44.f4–+) 43...h2 44.f4 h1Q 45.f5 (45.Ke5 Ra5 46.Kd4 Qf3 47.Bf7 Nc6 48.Kc4 Qc3) 45...Rc1 (45...Re1 46.Kg5 Qg2 47.Kh6 Rh1 48.Bh5 Qg7) 46.Kf7 (46.Bh5 Qh5 47.Ke5 Re1 48.Kd4 Qf3 49.Kc5 Qc6 50.Kb4 Rb1 51.Ka3 Qa6) 46...Rc2 (46...Qb7 47.Kf6 Re1 48.Bf7 Qe7 49.Kg6 Rg1 50.Kh5 Qg5) 47.f6 (47.Bh5 Qh5 48.Ke6 b3 49.Ke5 b2 50.Ke6 b1Q 51.Kf6 Qb5 52.Ke6 Qc5 53.f6 Re2) 47...Re2 (47...Qd5 48.Ke7 Rc7 49.Kf8 Qg8) 48.Kf8 (48.Bf5 Qh5 49.Bg6 Qd5 50.Kf8 Nd7) 48...Nd7 49.Kf7 Nf6! 50.Kf6 (50.Kf6 Qh4 Mate attack) 50...Qf3 (50...Qh4 51.Kf5 Qg3 52.Kf6 Qe5 53.Kf7 Qe7) 51.Kg5 (51.Bf5 Qc3 52.Kg5 Qg3 53.Bg4 Kg7 54.Kh5 Re5 55.Bf5 Rf5) 51...Rg2 52.Kh6 Qf6 53.Kh5 Qg6 (53...Qg5) 54.Kh4 b3 (54...Rh2) 55.Kh3 Qg3# 0–1. emily_b – branwell, gameknot.com, 2008. (=1.Nf3 Nf6 2.d3 g6 3.b4 Bg7 4.Bb2 0-0)

5.Qc1 d6

6.Nbd2 e5 7.g3 Bg4 8.Bg2 Nc6 9.a3 a6 10.0-0 Qd7 11.c4 Rfe8 12.Nb3 b5 13.cb5 ab5 14.Re1 Na7 15.Na5 c6 16.Nd2 h5 17.Ndb3 (worse is 17.Nc6 Rac8 18.Nc4 bc4 (18...Nc6?! 19.Nb6 Qb7 20.Nc8 Rc8 21.Qg5+=) 19.Na7 Qa7 20.dc4 Be6–+; 17.Bc6?! Nc6 18.Qc6 Qc6 19.Nc6 Rac8+=) 17...Be6 18.Nc6 Nc6 (18...Bb3 19.Na7 Qa7 20.Ba8 Ra8 21.e4-/+) 19.Qc6 Qc6 20.Bc6 Rac8 21.Be8 Ne8 22.Na5 Rc2 23.Bc1 Bh3 24.Be3 f5 25.Rac1 Ra2 26.Ra1 Rd2?? 27.Bd2+– e4 28.Rac1 ed3 29.ed3 Nf6 30.Rc6 Ng4 31.Rd6 Be5 32.Rd8 Kg7 33.d4 Bc7 34.Rd7 Kf6 35.Rc7 (35.Rc7 f4 36.d5+–) 1–0. linakip – stan69, kurnik, 2011.

6.Nbd2 h6 7.g3 e5 8.Bg2 c6 9.0-0 Bg4 10.a3 Kh7 11.e4 Nh5 12.c3 Qd7 13.Qc2 Bh3 14.Bc1 Bg2 15.Kg2 Qe7 16.Nc4 b5 17.Na5 Qc7 18.Be3 Nd7 19.Qc1 a6 20.Rb1 c5 21.d4 c4 22.de5 Ne5 23.Nd4 Nd3 24.Qc2 d5 25.ed5 Qd6 26.Nb7 Qd5 27.Kg1 f5 28.Nc5 f4 29.Bd2 fg3 30.hg3 Qd8 31.Nd3 cd3 32.Qd3 Qf6 33.Be3 Rad8 34.Qe2 Qe5 35.Qg4 Qd5 36.Rbc1 Qa2 37.Ra1 Qc4 38.Qe2?? Qe2 39.Ne2+= Rc8 40.Rac1 Nf6 41.Nd4 Ne4 42.Ne6 Rfe8 43.Ng7 Kg7 44.Bd4 Kh7 45.Kg2 g5 46.f3 Nd6 47.Rfd1 Nc4 48.Rd3 Na3 49.Re3 Re3 50.Be3 Nc4 51.Bd4 Ra8 52.Ra1 Kg6 53.Bc5 Kf5 54.Kf2 h5 55.Ke2 h4 56.g4 Kf4 57.Rd1 a5 58.Rd4 Kg3 59.Rd5 a4 60.Rg5 a3 61.Bd4 a2 62.Rb5 a1Q 63.Bf2 Kh3 64.Rc5 (64.Rc5 Re8 65.Re5 Re5 66.Kd3 Qd1 67.Kc4 Qd5#). linakip – 60piter, kurnik, 2011.

5.Nbd2 a5

6.ba5 Nc6 7.Nb3 Na5 8.Na5 Ra5 9.g3 c5 10.Bg2 d5 11.0-0 b5 12.Qc1 Bb7 13.c4 dc4 14.dc4 b4 15.a3 ba3 16.Ra3 Ra3 17.Ba3 Qc7 18.Bb2 Ne4 19.Bg7 Kg7 20.Qc2 e5 21.Qb2 f6 22.Nd2 Nd2 23.Qd2 Bg2 24.Kg2 Rd8 25.Qe3 Rd4 26.Rc1 Qc6 27.Kg1 Qe4 28.Qe4 Re4 29.Kf1 Rd4 30.Rc3 e4 31.Kg2 f5 32.f3 Kf6 33.h4 Ke5 34.f4 Kd6 35.Kf2 Rd2 36.Ke3 Ra2 37.Kf2 Kc6 38.Kf1 Ra4 39.Kg2 Ra2 40.Kf2 1–0. linakip – giovanni5, kurnik, 2011.

6.ba5 Ra5

7.g3 Ra8 8.Bg2 d5 9.0-0 c6 10.c4 dc4 11.Nc4 Be6 12.Ncd2 Qc8 (worse is 12...Ba2 13.Qc2 Qd5 14.Nc4+=) 13.Qc1 Bh3 14.Nc4 Bg2 15.Kg2 Nbd7 16.Bd4 b5 17.Nce5 Ne5 18.Be5 Qe6 19.Qb2 Rad8 20.Kg1 Rd5 21.Bc3 c5 22.e4 Rd3 23.Ne5 Rc3! 24.Qc3 b4 25.Qc5 Ne4 26.f4?? Nc5 27.Rfe1 Qa6 28.a3 Be5 29.fe5 ba3 30.Re3 Qb6 31.Rea3 Nd7 32.Kg2 Ne5 33.Ra6 Qb2 34.Kh3 h5 35.R6a2 Qd4 36.Ra4 Qd7 37.Kg2 Ng4 38.Ra7 Qc6 39.Kh3 Qc2 40.R7a2–+ Qf5 41.Ra5 Ne5 42.Kg2–+ Qf3 43.Kh3 Nd3 44.R5a3 Nf2 45.Kh4 Qg4# (45...Qf6#) 0–1. linakip – djemo, kurnik, 2012.

7.g3 b6 8.Bg2 Bb7 9.0-0 d6 10.Nb3 Ra7 11.Qc1 c5 12.c4 Nc6 13.a3 Na5 14.Qc2 Qa8 15.Ra2 Nd7 16.Rfa1 Bb2 17.Qb2 Ne5 18.Nbd2 Nf3 19.Nf3 Ra6 20.a4 Nc6 21.Nd2 Nb4 22.Bb7 Qb7 23.Ra3 Rfa8 24.Qb3 Qc6 25.Ne4 h6 26.Nc3 e6 27.Nb5 d5 28.f3 d4 29.Qb2 e5 30.Kf2 f5 31.h3 g5 32.Qd2 Rf8 33.g4 f4 34.a5 ba5 35.Ra5 Rfa8 36.Ra6 Ra6 37.Qb2 Ra1 38.Qa1 Qa6 39.Qb2 Qa2 40.Qc1?? Nd3 41.Kf1 Nc1 (41...Nc1 42.Nc3 dc3 43.Kg2 Qe2 44.Kg1 c2 45.h4 Na2 46.hg5 c1Q#) 0–1. linakip – rys67, kurnik, 2011.

7.g3 c6 8.Qc1 d5 9.Bg2 Re8 10.0-0 Nbd7 11.c4 dc4 12.Nc4 Ra6 13.Bc3 Nb6 14.Nb6 Rb6 15.Bd4 Ra6 16.Bc3 e6 17.Re1 Nd5 18.Bb2 Bb2 19.Qb2 Qb6 20.Qd2 Qa5 21.Qg5 Qc3 22.Rec1 Qf6 23.Qd2 b5 24.e4 Ne7 25.d4 Bb7 26.e5 Qg7 27.Qc3 Nd5 28.Qd2 Rea8 29.Bf1 Ra3 30.Ne1 h5 31.Nc2 R3a4 32.Bg2 Qf8 33.Bd5 ed5 34.Ne3 Qb4 35.Qb4 Rb4 36.Nc2 Rba4 37.a3 Bc8 38.Nb4 Bd7 39.Nc2 R8a6 40.Nb4 Ra3?? 41.Na6+– Ra1 42.Ra1 1–0. linakip – vivapol, kurnik, 2012.

7.g3 c6 8.Bg2 d5 9.0-0 Re8 10.c4 dc4 11.Nc4 Ra6 12.Qb3 Nbd7 13.Bc3 Nc5 14.Qb2 Na4 15.Qb3 Nc3 16.Rab1?? (better is 16.Qc3 Nd5 17.Qc2 Ba1 18.Ra1-/+) 16...Ncd5 17.Nfd2 Nd7 18.Ne4 Kh8 19.a4 f5 20.Ng5 Rf8 21.Ne6 Qe8 22.Nf8 Qf8 23.a5 b5 24.ab6 N7b6 25.Nb6 Rb6 26.Qa2 Rb1 27.Rb1 Qf6?? 28.Rc1 h5?? 29.Qc4 Bd7 30.e4 fe4 31.Be4 Kh7 32.Bd5 cd5 33.Qd5 Be6 34.Qe4 Bf5 35.Qf3 Bg4 36.Qf6 Bf6 37.Kg2 Kh6 38.h3 Bf5 39.Rd1 e5 40.f3 g5 41.g4 hg4 42.hg4 Bg6 43.Kg3 Kg7 44.Kf2 Be7 45.d4 ed4 46.Rd4 Bc5 47.Ke3 Bd4 48.Kd4 Kf6 49.Ke3 Ke6 50.f4= gf4 51.Kf4 Kf6 52.g5 Ke6 53.Kg4 Ke5 54.Kh4 Kf5 55.Kh3 Kg5 ½–½. linakip – ikar9, kurnik, 2012.

7.g3 Nc6 8.Bg2 e6 9.0-0 d5 10.Nb3 Rb5 11.a4 Rb6 12.Qc1 Ra6 13.Nc5 Ra8 14.Ne5 Ne5 15.Be5 b6 16.Nb3 Nd7 17.Bg7 Kg7 18.c4 c6 19.Nd4 Bb7 20.cd5 cd5 21.Nb5 Nc5 22.Qb2 f6 23.Rfc1 Na4 24.Qb3 Nc5 25.Qb4 Ra1 26.Ra1 Qd7 27.f3 Ra8 28.Rc1 Ra4 29.Qb2 Ra5 30.Nd4 Na4 31.Qb3 e5?? 32.Nc2 d4–+ 33.Na3 Bd5 34.Qb4 Qb7 35.Nc4 Bc4 36.dc4 Nc5 37.f4 e4 38.Rd1 d3 39.ed3 1–0. giorgo – mietz, kurnik, 2012.

5.Nbd2 a6

6.Qc1 b5 7.g3 Bb7 8.Bg2 Nc6 9.a3 Rb8 10.0-0 e6 11.c4 bc4 12.Nc4 Na7 13.Na5 Nc6 14.Nc6 Bc6 15.Ne5 Bg2 16.Kg2 d6 17.Nc6 Qc8?? (17...Qd7 18.Nb8 Rb8 19.Rb1+–) 18.Nb8 (better is 18.Ne7 Kh8 19.Nc8 Rfc8 20.Qf4+–) 18...Qb8 19.Bc3 Qb5 20.Qb2 c6 21.Bf6 Qd5 22.f3 Bf6 23.Qf6 e5 24.Rfd1 a5 25.e4 Qb3 26.Qd6 Qc2 27.Kh3 1–0. linakip – jackout75, kurnik, 2011.

6.Qc1 b5 7.g3 Bb7 8.Bg2 d6 9.0-0 Nbd7 10.c4 bc4 11.Nc4 Rb8 12.Na5 c5 13.a3 cb4 14.ab4 Bf3 15.Bf3 e5 (15...Rb4? 16.Nc6 Qb6 17.Nb4 Qb4 18.Ra6+–) 16.Rb1 Rc8 (16...Rb4? 17.Nc6 Rb2 18.Nd8 (18.Qb2?! Qc7+/-; 18.Rb2?! Qe8+/-) 18...Rb1 19.Qb1 Rd8 20.Qb4+–) 17.Qd2 Qb6 18.Nc4 Qc7 19.Ba3 d5 20.Na5 e4 21.Bg2 Rfd8 22.Rfc1 Qe5 23.Bb2 Qe6 24.Nb7 Rc1 25.Qc1 Rb8 26.Nc5 Nc5 27.Qc5 ed3 28.ed3 Nd7 29.Qd5 Bb2 30.Qe6 fe6 31.Rb2 Nb6 32.Bc6 Nd5 33.b5 ab5 34.Rb5 Rc8 35.Bd7 Rc1 36.Kg2 Kf7 37.Rb7 Kf6 38.Be8 h6 39.Rf7 Kg5 40.h4 Kh5 41.Rg7 Nf6 42.Bg6 Kg4 43.Be4 (43.Be4 Kh5 44.Bf3 Ng4 45.Bg4#; 43.f3#) 1–0. linakip – andypr, kurnik, 2011.

5.Nbd2 b6

6.Qc1 Bb7 7.g3 d5 8.Bg2 c5 9.bc5 bc5 10.0-0 d4 11.c3 Nc6 12.cd4 Nd4 13.Re1 Nf3 14.Nf3 Rc8 15.Be5 Qa5 16.Qb2 Bd5 17.Rac1 Qa2 18.Qa2 Ba2 19.Ra1 Bd5 20.Ra7 e6 21.Ra5 c4 22.d4 c3 23.Rc1 Ne4 24.Bg7 Kg7 25.Ne5 h5 26.f3 Nd2 27.Nd7 Rfd8 28.Nc5 Rc6 29.Rc3 Rdc8 30.Rd3 Nc4 31.Rb5 Nd6 32.Ra5 Nf5 33.e4 Bc4 34.Rc3 Nd4 35.Rc4 Nb3 36.Rb5 Nc5 37.f4 Nd3 38.Rc6 Rc6 39.e5 (39.e5 Rc1 40.Bf1=). linakip – 6slimak, kurnik, 2011.

6.Qc1 Bb7 7.g3 d6 8.Bg2 Nbd7 9.0-0 Rb8 10.a3 e5 11.Re1 c5 12.c3 cb4 13.ab4 a6 14.c4 b5 15.Ra2 Rc8 16.Qa1 d5 17.c5 e4 18.Nd4 ed3 19.ed3 Ra8 20.N2f3 Re8 21.c6 Re1 22.Qe1 Bc6 23.Nc6 Qc7 24.Ne7 Kf8 25.Nd5! Nd5 26.Bg7 Kg7 27.Qd2 Re8 28.Qb2 f6 29.Bf1 Nc3 30.Ra3 Ne5 31.Rc3 Nf3 32.Kg2 Qb7 33.Kh3?? Qd7 34.g4?? h5 35.Bg2 Qg4# 0–1. linakip – czarnapa, kurnik, 2011.

6.g3 Bb7

7.Bg2 a6 8.Qc1 Nc6 9.a3 d6 10.0-0 Rb8 11.Re1 b5 12.c4 bc4 13.Nc4 d5 14.Nce5 Ne5 15.Be5 Rc8 16.Qb2 Nh5 17.Rab1 Be5 18.Qe5 Ng7 19.Rbc1 e6 20.Qd4 Nf5 21.Qa7 Nd6 22.Nd4 Ra8 23.Qc5 Rc8 24.Qa5 Nb5 25.Nb5 ab5 26.Qb5 Rb8 27.Qa5 Rc8 28.b5 e5 29.Qb4 Qd6 30.Qc3 d4 31.Qc4 Bg2 32.Kg2 c5 33.a4 h5 34.Rb1 Rb8 35.Rb2 Rb7 36.Reb1 Rfb8 37.a5 h4 38.a6 Rb6 39.Rc1 Rc8 40.a7 Rb7 41.b6 Rb6 42.Rb6 Qb6 43.a8Q Ra8 44.Qc5 Qc5 45.Rc5 f6 46.f3 Ra2 47.Kf2 Kg7 48.gh4 f5 49.Re5 1–0. linakip – incognitojp, kurnik, 2011.

7.Bg2 d6

8.0-0 Nbd7 9.a3 Rb8 10.Re1 c5 11.c3 Nh5 12.Qc2 Ne5 13.bc5 Nf3 14.Nf3 dc5 15.c4 Bb2 16.Qb2 Ng7 17.a4 Qd7 18.a5 ba5 19.Qa3 Bf3 20.Bf3 Qc7 21.Qa5 Qa5 22.Ra5 Ne6 23.Ra7 Rfe8 24.Bd5 Nd4 25.e3 Nc2 26.Rc1 Nb4 27.Be4 f5 28.Bd5 Kf8 29.Rc7 Nd3 30.Rc3 Rb1 31.Kg2 Ne1 32.Kh3 g5 33.Rc5 g4 34.Kh4 e6 35.Bc6 Re7 36.Kg5 Kg7 37.f3?? gf3–+ 38.Kf4 f2 (38...f2 39.Ke5 f1Q–+) 0–1. linakip – mihail54, kurnik, 2012.

8.0-0 Nbd7 9.a3 c5 10.c3 cb4 11.cb4 a5 12.ba5 ba5 13.Nc4 a4 14.Bc3 Nc5 15.Rb1 Bd5 16.Bb4 Nb3 17.e4 Bc4 18.dc4 Rc8 19.Nd2 Qb6 20.Nb3 ab3 21.Qb3 Nd7 22.Rfc1 Nc5 23.Qc2 Qa6 24.Bc3 Bc3 25.Qc3 Na4 26.Qb4 Rb8 27.Qd2 Rb1 28.Rb1 Qc4 29.Bf1 Qe4 30.Bd3 Qd5 31.Rb4 Nc5 32.Rb5 Qd3 33.Qd3 Nd3 34.a4 Nc5 35.a5 Ra8 36.Kf1 Kf8 37.Ke2 Ke8 38.Ke3 Kd7 39.Kd4 Kc6 40.Kc4 Nb7 41.Rb6 Kc7 42.Kb5 Ra5 43.Kb4 Rc5 44.Rb5 Kc6 45.Rc5 dc5 46.Kc3 Kb5 47.f4 Nd6 48.h3 f5 49.g4 Ne4 50.Kd3 e6 51.gf5 ef5 52.h4 c4 53.Kc2 Kb4 54.Kc1 Kb3 55.Kb1 c3 56.Kc1 Nc5 57.Kb1 c2 58.Kc1 Nd3 59.Kd2–+ c1Q 60.Kd3 Qf4 61.Ke2 (61.Ke2 Qg4 62.Kf2 f4 63.Kf1 Qh3 64.Ke2 Qe3 65.Kf1 f3 66.h5 Qe2 67.Kg1 Qg2#). linakip – stany606, kurnik, 2012.

8.0-0 Nbd7 9.Qb1 Rb8 10.a3 c5 11.c3 cb4 12.cb4 Qc7 13.Rc1 Qd8 14.Nc4 Rc8 15.a4 e5 16.Qa2 d5 17.Nce5 Ne5 18.Be5 Re8 19.Bb2 Qe7 20.e3 Qb4 21.Bc3 Rc3 22.Nd4 Rc1 23.Rc1 Ng4 24.Rb1 Qc3 25.Nb5 Qd3 26.Na7 Ba6 27.Nc6?? Bc4 28.Bf1 Qf1! 29.Rf1 Ba2 30.a5 ba5 31.Na5 Ne5 32.Nb7 d4! 33.Nd6 Rd8 34.ed4 Nf3 35.Kg2 Rd6 36.Kf3 Rd4 37.Re1 Bd5 38.Ke3 Re4 39.Kd3 Re1 0–1. linakip – magrecki, kurnik, 2011.

8.0-0 e5 9.a3 Nbd7 10.c4 c5 11.b5 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 d5? (better is 14...Qc7!?=) 15.Ne5+/- Ne5 16.Be5 Re8 17.Bb2?? (better is 17.cd5 Re5 18.Qe5 Bd5 19.Qf4+–) 17...Re2= 18.Re1?? (better is 18.Nb1=) 18...Qe7?? 19.Re2+/- Qe2 20.Nf3?? d4?? 21.Nh4?? Ng4?? 22.Qf1+= Qb2 23.Bb7 Bh6 24.Bf3? Ne5 25.Bd5 Qd2 26.Kg2?? Nd3 27.Nf3 Be3?? 28.Nd2+– Nf2 29.Ne4 Ng4 30.Qe2 h5 31.h3 Ne5 32.Nf6 Kg7 33.Ne4 f5?? 34.Nd6+– Kf6 35.Nc8 g5 36.Nb6 f4 37.gf4 gf4 38.Qh5 d3 39.Be4 d2 40.Qf5 Kg7 41.Bc2 f3+– 42.Kf1 Bd4 43.Nd7 Nd7 44.Qd7 Kf6 45.Qf5 Kg7 46.Qf3 Kh6 47.Qf4 Kh5 48.Qd2 Kh4 49.Qg2 Be3 50.Bf5 (50.Bf5 Kh5 51.Qg6 Kh4 52.Qg4#; 50.Qg4#) 1–0. giorgo – mapaj, kurnik, 2012.

8.Qc1 Nbd7 9.0-0 c5 10.a3 Rc8 11.Qb1 cb4 12.ab4 a6 13.c4 b5 14.c5 dc5 15.bc5 Nc5 16.Bd4 e6 17.Qb2 Qe7 18.Rac1 Rfd8 19.Nb3 Nb3 20.Qb3 Rc1 21.Rc1 Bf3 22.Bf3 Rd4 23.e3 Rd8 24.d4 Nd5 25.Rc6 Qa7 26.Qc2 b4 27.Qc5 Qc5 28.Rc5 Bf8 29.Ra5 Nc7 30.Bb7 Rb8 31.Ba6 b3 32.Bd3 b2 33.Kg2 b1Q 34.Bb1 Rb1 35.Ra7 Nd5 36.Ra8 Rb2 37.e4 Nc3 38.Kf3 Kg7 39.Rc8 Nb5 40.Rc4 Rb3 41.Ke2 Be7 42.h4 h5 43.f3 Rb4 44.Rb4 Bb4 45.Kd3 Be7 46.f4 f6 47.Kc4 Na3 48.Kb3 Nb5 49.Kc4 Nd6 50.Kd3 f5 51.e5 Nb5 52.Kc4 Nc7 53.Kd3 Kf8 54.Kc4 Ke8 55.Kd3 Kd7 56.Kc4 Kc6 57.Kd3 Kd5 58.Ke3 Nb5 59.Kf3 Nd4 60.Ke3 Bc5 61.Kd3 Nb3 62.Ke2 Ke4 63.Kf1 Nd4 64.Kg2 Ke3 65.Kh3 Ne2 66.Kg2 Bd4 67.Kf1 Kf3 68.Ke1 Ng3 69.Kd2 Kf4 70.Kd3 Be5 71.Kc4 Kg4 72.Kd3 Kh4 73.Ke3 f4 74.Kf3 g5 75.Kg2 g4 76.Kf2 f3 77.Ke3 f2! 78.Kf2 Kh3 79.Kg1 Nf5 80.Kf2–+ Nd4 81.Ke3 g3 82.Ke4 ½–½. linakip – chmielu1971 (1620), kurnik, 2011.

8.Qc1 Nbd7 9.0-0 Re8 10.a3 e5 11.e4 Bh6 12.Qb1 Ba6 13.Bc1 Rb8 14.c4 Bb7 15.Nb3 Bc1 16.Qc1 a6 17.Qh6 Re7 18.Nbd2 Qf8 19.Qh4 Qg7 20.Ng5 Rbe8 21.Ndf3 a5 22.b5 Nc5 23.Rfd1 h6 24.Nh3 Bc8 25.Nd2?? Bh3 26.Qh3+= Nd3 27.Bf1 Nc5 28.Rab1 Nce4 29.Ne4 Ne4 30.Rbc1 Ng5 31.Qg2 Qf6 32.Bd3 Nf3 33.Kh1 Nd4 34.Rf1 e4 35.Bb1 Qf3 36.Rcd1 Qg2 37.Kg2 Nf3 38.a4 Ng5 39.Rde1 e3 40.f3 Nh7 41.Be4 Nf6 42.Bc6 Rd8 43.Re2 d5 44.cd5 Nd5 45.Bd5 Rd5 46.Rfe1 Rd2 47.Kf1 Re2 48.Re2 f5 49.f4 Kf7 50.Kg2 Re4 51.Kf3 Ra4 52.Re3 Rb4 53.Rd3 Rb5 54.Rd7 Ke6 55.Rc7 a4 56.Ra7 Ra5 57.Rb7 (57.Rb7 b5 58.Rc7–+). linakip – foudomi, kurnik, 2011.

5.Nbd2 c6

6.a3 d5 7.g3 Nbd7 8.Bg2 e6 9.0-0 Nb6 10.c4 dc4 11.dc4 Nc4 12.Nc4 b5 13.Na5 1–0. linakip – azuma67, kurnik, 2012.

6.g3 Qb6 7.a3 Ng4 8.d4 e5 9.c3 ed4 10.cd4 Re8 11.Bg2 d5 12.0-0 Bf5 13.Nb3 Nf6 14.Nc5 Nbd7 15.Nh4 Be6 16.Nf3 Bg4 17.Qc2 Bf5 18.Qc1 Ne4 19.Nd2 Nd2 20.Qd2 Qc7 21.e3 Be4 22.f3 Bf5 23.Rfe1 Nc5 24.bc5 Bd7 25.Bc1 a5 26.a4 b6 27.cb6 Qb6 28.Ba3 Re6 29.Bc5 Qc7 30.Rab1 Rae8 31.Bb6 Qc8 32.Rb3 Bd4 33.Qd4 f5 34.Rb2 Qa6 35.Bf1 Qa8 36.Rbe2 Kf7 37.Bg2 Qa6 38.Bf1 Qb7?? 39.Qc5 Qa8 40.Qa5 Qa5 41.Ba5 Ra8 42.Bc3 Ra4 43.Bd4 Ra5 44.Rb2 Bc8 45.Rd1 c5 46.Bc3 (46.Bc3 Ra3 47.Rc2+–) 1–0. linakip – alankodzas, kurnik, 2012.

6.g3 d5 7.Bg2 Be6 8.Qc1 Nbd7 9.0-0 Qc7 10.a3 Rac8 11.Re1 a6 12.Nb3 b6 13.c4 dc4 14.dc4 Rfd8 15.Nbd4 Nf8 16.Ng5 Bd7 17.Ngf3 h6 18.Nb3 Be6 19.Nbd4 Ne4 20.e3 Bg4 21.Qc2 f5 22.Nd2 Nd2-/+ 23.Qd2 e5 24.Nf3?? Rd2–+ 25.Nd2 e4 26.Nb3 Bb2 27.Ra2 Bf6 28.Rd1 Bd1 (28...Bd1 29.Nd2 c5–+) 0–1. giorgo – colombia27, kurnik, 2012.

6.g3 d6 7.Bg2 e5 8.0-0 Nh5 9.Qc1 h6 10.e4 Kh7 11.c3 f5 12.Qc2 f4 13.Bc1 Be6 14.a3 Qc8 15.Nb3 Bh3 16.Na5 Bg2 17.Kg2 Qc7 18.Qe2 Nd7 19.Nc4 b5 20.Na5 Ndf6 21.g4 Ng4 22.h3 Ngf6 23.Rh1 Nd7 24.Nh2 f3! 25.Nf3 Nf4 26.Bf4 Rf4 27.d4 Raf8 28.Nh2 ed4 29.f3 dc3 30.Rac1 Ne5 31.Rhf1 g5 32.Rc2 Ng6 33.Qd3 Rh4 34.Ng4 Nf4 35.Kg3 Rh3 36.Kf2 Nd3 37.Ke2 Nf4 38.Kf2 h5 39.Ne3 Bd4 40.Rd1 Qb6 41.Kf1 Be3 42.Rd6 Rh1# 0–1. linakip – patrik507, kurnik, 2012.

5.Nbd2 Nc6

6.a3 a5 7.b5 Na7 8.a4 b6 9.g3 Bb7 10.Bg2 c6 11.c4 cb5 12.cb5 Nc8 13.0-0 Nd6 14.Qb1 Bf3 15.Nf3 Nf5 16.e4 Nh6 17.Rd1 Rb8 18.Nd2 d6 19.Nc4 Nhg4 20.Qc1 Bh6 21.Qc2 Rc8 22.Qb3 e6 23.Bc1 Bg7 24.Bb2 e5 25.Bc1 Nd7 26.h3 Nc5 27.Qc2 Nf6 28.Be3 Qc7 29.Rdb1 Nfd7 30.Bf1 Nf6 31.Bc5 dc5 32.Rd1 Rb8 33.Qe2 Qd7 34.Rac1 Bh6 35.Rc2 Nh5 36.Ne5 Qd4 37.Nf3 (37.Nf3 Qa4 38.Rb1+–) 1–0. linakip – stany606, kurnik, 2012.

6.a3 a6 7.g3 d5 8.Qc1 Bg4 9.Bg2 e5 10.0-0 e4 11.Nd4? (better is 11.de4 de4 12.Ng5=) 11...Nd7?? (better is 11...Nd4 12.Bd4 Be2-/+) 12.Re1?? (better is 12.Nc6 Bb2 13.Qb2 (worse is 13.Nd8 Bc1 14.Rfc1 Rfd8+/-) 13...bc6 14.de4+–) 12...Nd4–+ 13.c3 (13.Bd4 Bd4 14.c3–+) 13…Ne2 (13...Ne2 14.Re2 Be2 15.de4 de4 16.Be4 c6–+) 0–1. giorgo – hoangvmom, kurnik, 2012.

6.a3 d5 7.g3 Re8 8.Bg2 e5 9.0-0 e4 10.Ne1 ed3 11.cd3 d4 12.Nef3 Bg4 13.Re1 Nh5 14.b5 Na5 15.Qa4 b6 16.Rab1 Bf3 17.Nf3 Qd6 18.Nd4 Bd4 19.Bd4 c5 20.bc6 Nc6?? 21.Be3 Ne5 22.Ba8 Ra8 23.Qe4 Re8 24.Qd4 Qe7 25.a4 Nc6 26.Qc4 Ne5 27.Qa2 Ng4 28.Bd2 Qc5 29.e3 Qd6 30.d4 Ngf6 31.a5 Ne4 32.Bb4 Qf6 33.ab6 ab6 34.Rf1 Ng7 35.Qc2 Nf5 36.Bc3 Nc3 37.Qc3 Nd6 38.Qc6 Qd8 39.Qb6 Qb6 40.Rb6 Nc4 41.Rc6 Nd2 42.Rd1 Nf3 43.Kg2 Ng5 44.h4 Ne4 45.f3 1–0. linakip – 8cesar, kurnik, 2012.

6.a3 e5 7.Ne5 Ne5 8.Be5 d5 9.Bb2 Qd6 10.g3 c6 11.Bg2 a5 12.c3 Ng4 13.Qc2 Qf6 14.0-0 h5 15.Nf3 Ne5 16.Rab1 Nf3 17.ef3 h4 18.c4 hg3?? (better is 18...d4+=) 19.Bf6+– (19.Bf6 gh2 20.Kh2 Bf6 21.Bh3+–) 1–0. giorgo – franko1999, kurnik, 2012.

5.Nbd2 d5

6.Qc1 c6 7.g3 Qb6 8.a3 Ng4 9.d4 a5 10.c3 Na6 11.Bg2 a4 12.0-0 Nc7 13.c4 Ne6 14.c5 Qc7 15.e3 Nf6 16.Ne5 b5 (16...Ng5 17.f4 Nh3 18.Kh1+/-) 17.Qc2 (better is 17.cb6!? Qb6 18.Qc6+–) 17...Nd7 18.Ndf3 f6 19.Nd7 Bd7 20.Rfe1 Rae8 21.Bc1 Nd8 22.Qd2 Nf7 23.Bb2 Bg4 24.h3 Bd7 25.e4 de4 26.Re4 Bf5 27.Ree1 Qc8 28.g4 Bd7 29.Re2 e5 30.Rae1 Bg4?? 31.hg4+– Qg4 32.Nh2 Qf5? 33.Qc2 Qc2 34.Rc2 ed4 35.Re8 Re8 36.Bd4 Re1 37.Nf1 Ne5?? 38.Bc3 Rb1 39.Be4 Nc4 40.Re2 Rc1? 41.Be1 (41.Be1 Bh6 42.Bc6 Na3 43.Kg2+/-; 41.Bc6?! Rc3 42.Bb5 f5+/-) 1–0. giorgo – unuklukin, kurnik, 2012.

6.Qc1 c6 7.g3 Bg4 8.Bg2 Bf3 9.ef3 Re8 10.0-0 e5 11.a3 Nh5 12.Re1 e4 13.fe4 de4 14.Ne4 Nd7 15.Bg7 Ng7 16.Qb2 Ne5 17.f4 Ng4 18.h3 Nh6 19.Nf6 Kf8 20.Ne8 Ne8 21.Qh8 Ng8 22.Qh7 Qf6 23.Qh4 Qd4 24.Kh1 Nef6 25.Qg5 b6 26.Rac1 Qf2 27.Rf1 Qe3 28.Qe5 Qg3 29.Rf3 Qh4 30.Qg5 Qh7 31.Rcf1 Nh5 32.f5 f6 33.Qg6 Qh8 34.Qg4 Re8 35.Qc4 Ne7 36.Qe6 Qg7 37.Kh2 Qg5 38.Qe3 Qg7 39.Qd2 Nd5 40.c4 (40.c4 Ne7 41.d4+–) 1–0. linakip – blondii06, kurnik, 2011.

6.Qc1 Nc6 7.a3 e5 8.c4 d4 9.g3 Bg4 10.Bg2 Re8 11.0-0 Ne7 12.Nb3 Nf5 13.Re1 Bf3 14.ef3 c6 15.Nc5 b6 16.Ne4 Ne4 17.fe4 Nh6 18.Qc2 Ng4 19.Bc1 h5 20.Bd2 h4 21.Qc1 hg3 22.hg3 f5 23.Bf3 Re7 24.Qd1 Qd7 25.Bg5 Rf7 26.Qd2 Raf8 27.Bg4 fg4 28.Bh6 Rf2 29.Qf2 Rf2 30.Kf2 Bh6 31.Re2 Be3 32.Kg2 Qh7 33.Rh1 Qf7 34.Rf1 Qe7 35.Ree1 c5 36.b5 Qg5 37.Re2 Bf4 38.Ref2 Qh5 39.Rh1 Qg5 40.Rhf1 a5 41.gf4 ef4 42.Rf4 Qh6 43.e5 Qh3 44.Kg1 Kg7 45.e6 g3 46.e7 Qh2# 0–1. linakip – ryh007, kurnik, 2011.

6.Qc1 e6 7.g3 Nbd7 8.a4 c5 9.b5 b6 10.Ba3 Bb7 11.d4 Rc8 12.dc5 Nc5 (12...Rc5?! 13.Bc5 Nc5 14.e3+=) 13.Bc5 bc5 14.c4 d4 15.Bg2 Ne4 16.0-0 Qc7 17.Ra2 e5 18.Qc2 f5 19.Ne1 Nd2 20.Qd2 e4 21.e3 d3 22.Bh3 h5 23.Ng2 Be5 24.Nf4 Bf4 25.gf4 Qg7 26.Kh1 Kh7 27.Rg1 Rg8 28.Raa1 Qf6 29.a5 Rc7 30.a6 Bc8 31.Rab1 Rcg7 32.Rg5 Be6 33.Qa2 Qf7 34.Rc1 Qd7 35.Bf1 Kh6 36.h4 Qc7 37.Bg2 Rd8 38.Rd1 Qf7 39.Rc1 Rd6 40.f3 ef3 41.Bf3 (41.Bf3 d2 42.Rd1 Bc4 43.Qb2–+). linakip – killthebill, kurnik, 2012.

6.c4 c6 7.g3 dc4 8.Nc4 Nbd7 9.Bg2 Nb6 10.Nce5 Nfd5 11.d4 Re8 12.e4 Nb4 13.a3 Na6 14.a4 f6 15.Nd3 Kh8 16.a5 Nb4 17.Nb4 Nc4 18.Bc3 Bg4 19.0-0 h5 20.Qd3 Nd6 21.e5 Bf5 22.Qe2 Nb5 23.Bb2 Qd7 24.Rfd1 Rad8 25.Rac1 Kh7 26.Qe3 Bh6 27.Qe1 Bc1 28.Rc1 Kg7 29.Nh4 g5 30.Nf5 Qf5 31.Be4 Qh3 32.Qe3 h4 33.gh4 Qh4 34.e6 Rh8 35.Qg3 Nd4 36.Bd4 Rd4 37.Bg2 Qg3 38.fg3 Rb4 39.Re1 Ra4 40.Bf3 Ra5 41.h4 gh4 42.Kg2 h3 43.Kh2 Ra2 44.Bg2 Rg2 45.Kh1 Rg3 0–1. alfy – kruhy1985, kurnik, 2012.

6.g3 a5 7.ba5 Ra5 8.Bg2 Nc6 9.c4 dc4 10.Nc4 Ra8 11.0-0 Be6 12.Ncd2 Qd7 13.a3 Rfd8 14.Qc1 Bh3 15.Nc4 Bg2 16.Kg2 Qf5 17.Ne3 Qd7 18.Nc4 Qf5 19.Re1 Ng4 (better is 19...Ra6+=) 20.Bg7+/- Kg7 21.Ne3 Ne3= 22.Qe3 e5 23.Nh4 Qe6 24.Rec1 Rd7 25.Rc3 Nd4 26.Rac1 c6 27.Nf3 Nb5 28.R3c2 f6 29.Ra1 Ra3 30.Ra3 Na3 31.Rd2 b5 32.Qc5 Qd6 33.Qd6 Rd6 34.Ne1 b4 35.Rb2 c5 36.Kf3 Rd4 37.Ke3 Kf7 38.Kd2? Ke6 39.e3 Rd8 40.Kc1 f5 41.Rd2 Rb8 42.Kb2 Kd5 43.Kb3 Nb5 44.Nc2 Nc3 45.e4 (45.e4 fe4 46.de4 Ke4 47.Kc4–+). giorgo – ptur, kurnik, 2012.

6.g3 a6 7.Bg2 Nc6 8.a3 Re8 9.c4 dc4 10.Nc4 Bg4 11.0-0 e6 12.Qb3 Bf3 13.ef3 Nd4 14.Qd1 Nd5 15.Rc1 Nb6 16.Na5 Rb8 17.f4 c6 18.Nc4 Nc4 19.Rc4 Qd7 20.Re1 Nf3 21.Bf3= Bb2 22.Qb3 Bd4+= 23.Re4 Red8?? 24.Qc2?? Bb6 25.Be2 Qd5 26.Qc3 Rd7 27.Re5 Qd6 28.a4? Bd4–+ 29.Rd4 Qd4 30.Qd4 Rd4 31.b5 ab5 32.ab5 cb5 33.Rb5 Kf8 34.Kg2 Ke7 35.Kf3 b6 36.Ke3 Rd5 37.Rb4 Rc5 38.Bf3 Kd6 39.Be4 Rcc8 40.Rd4 Ke7 41.Rb4 b5 42.g4 Rd8 43.h3 Rd6 44.f5 e5 45.f3 gf5 46.gf5? f6 47.f4 h6 48.fe5 fe5 49.h4 Kf6 50.Rb3 Rd4 51.Bc6? b4 52.Be4. giorgo – trenerios (1605), kurnik, 2012.

6.g3 b6 7.Bg2 Bb7 8.0-0 c5 9.a3 Nbd7 10.Qc1 Rc8 11.Qb1 Qc7 12.Rc1 d4 13.c3 e5 14.cd4 ed4 15.Nc4 Bf3 16.Bf3 Ne5 17.Bg2 Nc4 18.Rc4 Nd5 19.Bd5 b5 20.Rc5 Qd6 21.Rc8 Rc8 22.Qa2 Rc2 23.Rb1 Kh8 24.Bf7 Qe5 25.Re1 Re2 26.Re2 Qe2 27.Qb3 Qe1 28.Kg2 h5 29.Qd5 (29.Qd5 Qe7 30.Bg6+–) 1–0. linakip – shamil, kurnik, 2012.

6.g3 b6 7.Bg2 Bb7 8.0-0 Nbd7 9.a3 c5 10.c3 c4 11.d4 b5 12.Qc2 a6 13.Bc1 Ne4 14.Qb1 Nd2 15.Bd2 Nf6 16.Qc1 Ne4 17.Be3 e6 18.Ng5 Bh6 19.Nf3 Be3 20.Qe3 a5 21.Nd2 Nd2 22.Qd2 a4 23.Qf4 f5 24.Qe5 Qe7 25.Rfe1 Rf6 26.f3 Raf8 27.e4 fe4 28.fe4 de4 29.Be4 Be4 30.Qe4 Qd6 31.Qe5 Qb6 32.Rac1 Kg7 33.Kg2 Kf7 34.Kh3 Ke7 35.Qc5 Qc5 36.bc5 Kd7 37.Rb1 Kc6 38.Rb2 h5 39.Reb1 Rb8 40.Re2 g5 41.Rb4 Kd5 42.Kg2 h4 43.Re5 Kc6 44.Rg5 hg3 45.hg3 Rbf8 46.Rb2 Rh6 47.Re5 Rfh8 48.Ree2 Rh2 49.Kf3 Rf8 50.Kg4 Rg8 51.Kf4 Rh6 52.g4 Rh3 53.g5 Rc3 54.Re6 Kd7 55.Rd6 Kc7 56.Rb5 Ra3 57.Ra5 Ra2 58.g6 Rf2 59.Ke5 Re8 60.Kd5 Rf5 61.Kc4 Rg5 62.Ra4 Rg8 63.Raa6 Kb7 64.Rab6 Kc7 65.Rf6 Kc8 66.Rbe6 Kd7 67.d5 Rg4 68.Kb5 Rb8 69.Ka5 Rg1 70.Rd6 (70.Rd6 Ke8 71.Rb6 Ra1 72.Kb5 Rb1 73.Kc6 R8b6 74.cb6+–; 70.c6 Kd8 71.Rf8 Kc7 72.Rf7 Kd8 73.Rd7 Kc8 74.Re8#) 1–0. linakip – mmo009, kurnik, 2011.

6.g3 b6 7.Bg2 Bb7 8.0-0 Nbd7 9.c4 e6 (9...c5 10.Qb3=) 10.Qc2 c5 11.b5 (11.bc5 bc5 12.cd5 ed5+= (12...Nd5?? 13.Bg7 Kg7 14.Qb2 N7f6 15.Qb7+–)) 11...d4 12.a4 Qc7 (12...a6 13.Nb3=) 13.h3 (13.a5 a6+=) 13...e5 14.Rfe1 Bh6 15.Bc1 Nh5 (15...Rfe8 16.Nh4+=) 16.Nb3 (16.a5 Rae8+=) 16...Bg7 (16...Bc1 17.Qc1 a5 18.Qh6=) 17.a5 Rae8 (17...e4 18.a6 ed3 19.ed3 Bf3 20.Bf3 Rae8+=) 18.a6 (better is 18.ab6!? ab6 19.Ra7+=) 18...Ba8+= 19.Nbd2? (better is 19.Nh4+=) 19...f5–+ 20.Nf1 e4 21.Ng5?? (better is 21.Nh4–+) 21...h6 22.g4 (22.Qb3 hg5 23.Bg5 Ne5–+) 22...Nf4 (22...hg5?! 23.gh5 ed3 24.Qd3–+) 23.Bf4 Qf4 24.Nf3 (24.de4 fg4 25.Nf3 gf3 26.ef3 Ne5–+) 24...ef3 25.ef3 Ne5 26.Nh2 Nf3 (26...fg4!? 27.hg4 Nf3 28.Bf3 Bf3 29.Re8 Re8 30.Qc1 Qc1 31.Rc1–+) 27.Nf3 Bf3 28.Bf3 (28.Re8 Re8 29.Qc1 Qc1 30.Rc1 fg4 31.hg4 Bg4–+) 28...Qf3 29.Re8 (29.gf5 Be5 30.Qd1 Qh3 31.Re5 Re5 32.Qf1 Qf5 33.f3 Qg5 34.Kh1 Qh5 35.Kg1 Rg5 36.Qg2 Rg2 37.Kg2 Rf3 38.Rh1 Qg4 39.Kh2 Rf2) 29...Re8 30.Re1 (30.Qd1 Qh3 31.Qf1 Qg4 32.Qg2–+) 30...Re1 0–1. Fabus,Marian (1815) – Holeczy,Martin (1865), 2nd Liga, 2007.

6.g3 b6 7.Bg2 Bb7 8.a3 Nbd7 9.Qc1 c5 10.b5 Rc8 11.c4 dc4 12.Nc4 Re8 13.0-0 Qc7 14.Bc3 e5 15.Qb2 e4 16.Ne1 ed3 17.Nd3 Bg2 18.Kg2 Re7 19.Rae1 Rce8 20.Nf4 Qb7 21.Kg1 Qc7 22.a4 h5 23.h4 Re4 24.Nd2 Rf4 25.gf4 Qf4 26.Nf3 Qg4 27.Kh1 Qh3 28.Kg1 Qg4 29.Kh2?? Qf4 30.Kg2 Qg4 31.Kh2 Qf4 32.Kg2 Ne5 33.Rh1?? Nf3 34.ef3 Re1 35.Re1 Qh4 36.Rh1 Qg5 37.Kf1 Qf4 38.Qe2 Qc1 39.Kg2 Qc3 40.Re1 Qd4 41.Qe3 Qa4 42.Qe5 Qb5 43.Qb8 Kh7 44.Qa7 c4 45.Qf7 Qg5 46.Kf1 Qf4 47.Qe6 Qf3 48.Qe2 Qh3 49.Kg1–+ Ng4 50.f3 Bd4 51.Qe3 Be3 52.Re3 Ne3 53.Kf2 Nf5 54.Ke2 Qg3 55.Kd2 Qf3 56.Kc2 Qd3 57.Kb2 b5 58.Ka2 b4 59.Kb2 b3 60.Ka3 Qc2 61.Kb4 b2 62.Kc5 b1Q 63.Kd5 (63.Kc6 Qa4 64.Kd5 Qd7 65.Kc4 Qd4#) ½–½. linakip – pawiankoski1, kurnik, 2011.

6.g3 Nc6 7.a3 a6 8.Qc1 Bg4 9.Bg2 Bf3 10.ef3 e5 11.0-0 d4 12.Re1 Re8 13.c3 b5 14.c4 bc4 15.Nc4 a5 16.b5 Ne7 17.a4 (worse is 17.Re5 Nfd5 18.Re1 Rb8 19.Na5 Rb5+/-) 17...Ned5 18.Qd2 Nb4 19.Ba3 Bf8 20.f4 ef4 21.Ba8 Qa8 22.Bb4 Bb4 23.Qf4 Be1 24.Qf6 Bc3 25.Rd1 Qd5 26.b6 cb6 27.Nb6 Qb3 28.Rf1 Re6 29.Qd8 Kg7 30.Qd5 Qb6 31.Kg2 Qc6 32.Qc6 Rc6 33.Rb1 Rc5 34.Kf3 f5 35.Rb5 Rc6 36.Rb7 Kh6 37.Kf4 Bb4 38.Ke5 Rc3 39.Kd4 Rc2 40.f3 Rh2 41.Ke3 Rh3 42.Kf4 Rh2 43.d4?? Ra2 44.d5 Ra4 45.Rb6 Bc5 46.Ke5 Bb6 47.d6 Ra3 48.Ke6 a4 49.g4 fg4 50.fg4 Kg5 51.Ke7 Kg4 52.d7 h5 53.d8Q Bd8 54.Kd8 Rc3 (54...Rc3 55.Ke7 a3 56.Ke8 g5 57.Kf7 a2 58.Ke7 Re3 59.Kf7 a1Q 60.Kf8 Qf6 61.Kg8 Re8 62.Kh7 Rh8#) 0–1. linakip – hoangvmom, kurnik, 2012.

6.g3 Re8 7.Bg2 Nbd7 8.a3 e5 9.c4 e4 10.Nd4 ed3 11.e3 dc4 12.Nc4 c6 13.Qd3 Nb6 14.Qb3 Nc4 15.Qc4 Nd5 16.0-0 Be6 17.Qc2 Rc8 18.Rad1 Qb6 19.Ne6 Re6 20.Bd4 Qc7 21.Bg7 Kg7 22.Qb2 Kg8 23.Rc1 a5 24.b5 c5 25.Rc4 Nb6 26.Rcc1 c4 27.Rc2 c3 28.Qb3 a4 29.Qb4 Qc4 30.Rfc1 Qb4 31.ab4 Re7 32.Bb7 Rb7 33.Rc3 Rc3 34.Rc3 Nd5 35.Rc5 Nb4 36.Rc4 Rb5 37.Kg2 a3 38.Rc1 a2 39.Ra1 Nc2 40.Ra2 Ne1 41.Kf1 Nd3 42.Rd2 Ne5 43.Kg2 Kg7 44.h3 h5 45.Rd4 Rc5 46.Rf4 f6 47.Rd4 Rc2 48.h4 Ng4 49.Rf4 f5 50.Kg1 Kf6 51.Kg2 Ke5 52.Kg1 Kf6 53.Kg2 Ne3 54.Kf3 Ng4 55.Kg2 g5 56.hg5 Kg5 57.Kf1 Rc1 58.Ke2 Rc2 59.Kf1 h4 60.Kg2 hg3 61.Kg3 Ne5 62.Ra4 Rc3 63.Kg2 Ng4 64.Ra2 Rc4 65.Rd2 Rf4 66.Kg3 Rf2! 67.Rf2 Nf2 68.Kf2 ½–½. linakip – pawiankoski1, kurnik, 2012.

6.g3 Bf5 7.Bg2 Nbd7 8.0-0 e5 9.a3 c6 10.c4 Qe7 11.Nh4 Be6 12.Qc2 dc4 13.Nc4 Rad8 14.Ne5 Ne5 15.Be5 Nh5 16.Bg7 Ng7 17.Qc3 f5 18.Nf3 Rfe8 19.Rac1 Bd5 20.Rfe1 a6 21.a4 h6 22.b5 ab5 23.ab5 cb5 24.Rb1 Bc6 25.Nh4 Kh7 26.Bc6 bc6 27.Qc6 Rb8?? 28.Nf3 Qb7 29.Qb7 Rb7 30.Nd4 Reb8 31.Nc6 Rc8 32.Ne5 Ne6 33.Rec1 Rc1 34.Rc1 b4 35.Rb1 Nd4 36.Kf1 b3 37.Nc6?? Nc2?? 38.Ne5 b2?? 39.Nc4+– Nd4 40.Rb2 Re7 41.Ne3 g5 42.Nd5 Re5 43.Nf6 Kg6 44.Nd7 h5?? 45.Ne5 (45.Ne5 Kf6 46.f4+–) 1–0. giorgo – 14pawel88, kurnik, 2012.

6.g3 Bg4 7.Bg2 e6 8.0-0 Nbd7 9.Qc1 c5 10.a3 cb4 11.ab4 a6 12.c4 Rc8 13.c5 Rc6 14.Qb1 b6 15.d4 bc5 16.dc5 Bf5 17.Qa2 Qc8 18.Nd4 Rc7 19.Nf5 gf5 20.Nf3 Ne4 21.Bg7 Kg7 22.Qa6 Nb8 23.Qd3 Nc6 24.b5 Nb4 25.Qb3 Nc2 26.Qc2 Rc5 27.Qb2 f6 28.b6 Qb7 29.Rab1 Nc3 30.Rbc1 Rfc8 31.Nd4 Na4 32.Qa1 Rc1 33.Rc1 Nb6 34.Ne6 Kg6 35.Nf4 Kg7 36.Nd5! Rc1 37.Qc1 Nd5 38.Qd2 Qb1 39.Bf1 Ne7 40.Kg2 Qb7 41.f3 Ng6 42.e3 h5 43.Bd3 h4 44.Bf5 Ne5 45.Be4 Qd7 46.Qd7 Nd7 47.gh4 Kh6 48.Kg3 Ne5 49.f4 Nc4 50.Bf3 Nd2 51.Kf2 f5 52.Ke2 Nc4 53.e4 fe4 54.Be4 Nd6 55.Bf3 Nf5 56.h5 Nd4 57.Ke3 Nf5 58.Ke4 Nh4 59.Bg4 Ng2 60.h3 Nh4 61.f5 Ng2 62.f6 (62.f6 Kh7 63.Be6+–) 1–0. linakip – zsoltika29, kurnik, 2011.

6.g3 c6

7.Bg2 Bg4 8.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5 6.0-0 c6 7.d3 Bg4 8.Nbd2).

7.Bg2 Qb6 8.Rb1 a5 9.ba5 Qa5 10.0-0 Na6 (worse is 10...Qa2 11.Ra1 Qb2 12.Ra8+=) 11.Qc1 Nc5 (11...b5 12.c4+=) 12.c4= Na4 (12...Ne6!?=) 13.Bd4+= c5 14.Nb3 Qa7 15.Be5 d4 16.Qd2 Bd7 (16...Nc3 17.Rb2 Bg4 18.Ra1=) 17.e3+= de3 18.fe3 (worse is 18.Qe3 Ng4 19.Qe1 Ne5 20.Ne5 Bf5+=) 18...Bc6 19.Ba1 b5 (19...Rfd8!?=) 20.cb5+/- Bb5 21.Ne5 Rad8 22.Nc6 Bc6+= 23.Bc6 c4 24.Bd4 Qa6 25.Na5 c3 26.Qc2 Qa5 27.Ba4 Ng4 28.Rb5 Qa8-/+ 29.Bg7 Ne3 30.Qe2 Kg7 31.Bb3?? Nf5 32.Qe5 f6-/+ 33.Qc3 Nd4–+ 34.Qc5 Nb5 35.Qb5 Qa7 36.Kg2 Qe3 37.Bc4 Rb8 38.Qd5 Rb2 39.Kh3 Qe2 40.Rh1 g5 (40...g5 41.Qf3 Qf3 42.Bf7 Qf5 43.g4 Qd3#) 0–1. Machala,Vladislav – Hrubant,Ivan (2250), CZE–chT2a, 1995.

7.Bg2 Nbd7 8.0-0 Re8 9.Qc1 e5 10.c4 d4 11.a3 Rb8 12.Qc2 b6 13.Rac1 c5 14.b5 Nf8 15.Ra1 Bg4 16.Bc1 N8d7 17.Nb3 Qc7 18.a4 e4 19.Ne1 ed3 20.Qd3 Be2 21.Qd2 Bf1 22.Bf1 Ne4 23.Qd3 Ndf6 24.Bg2 Qe5 25.Bf4 Qf5 26.Nd2 Nd2 27.Qd2 Ne4 28.Qd3 g5 29.Bb8 Qf2 30.Kh1 Nc3 31.Rc1?? Re1 32.Re1 Qe1 33.Qf1 Qe3 34.Ba7 Ne4 35.Bb6 Nf2 36.Kg1 Nh3 37.Kh1 Nf2 38.Kg1 Nh3 39.Kh1 Nf2 ½–½. linakip – nowyekranpl, kurnik, 2012.

7.Bg2 Nbd7 8.0-0 Re8 9.Qc1 e5 10.c4 e4 11.Ne1 ed3 12.Nd3 Re2 13.Nf4 Re8 14.cd5 cd5 15.Nf3 Nb6 16.Qc2 Bf5 17.Qb3 Nc4 18.Bd4 a5 19.Nd2?? (better is 19.ba5 Be4 20.Rfc1-/+) 19...Nd2–+ 20.ba5 (20.Qb2 Nf1 21.Kf1 ab4 22.Nd5 Nd5 23.Bg7–+) 20…Nb3 (20...Nb3 21.ab3 g5–+) 0–1. linakip – agnes250, kurnik, 2012.

7.Bg2 Qe8 8.0-0 Nh5 9.Qc1 e5 10.e4 d4 11.c3 dc3 12.Bc3 Bg4 13.Qb2 Nd7 14.a3 f5 15.Rfe1 f4 16.h3 Bf3 17.Bf3 fg3 18.Bh5?? (18.fg3 Ng3 19.Kh2 Nh5 20.Bh5 gh5=) 18...gh5 (better is 18...gf2 19.Kh2 fe1R (19...gh5?! 20.Re3–+) 20.Re1 gh5–+) 19.f3? (better is 19.fg3!? Qg6 20.Re3+=) 19...Qg6 20.Kg2 Rae8 21.Nf1 h4 22.Ne3 Bh6 23.Ng4 Bf4 24.Bd2 h5 25.Bf4?? Rf4 26.Ne5?? Ne5–+ 27.Rf1 Qf6 28.Qd2 Rf8 29.d4 Nf3 30.Qe3 Nh2 31.Rf4 Qf4 32.Qf4 Rf4 33.Re1 Kf7 34.Re2–+ Ke6 35.d5 cd5 36.ed5 Kd5 37.Rc2 Kd6 38.b5 Ra4 39.Rc3 Ra5 40.Rb3 b6 41.a4 Ra4 42.Rd3 Kc5 43.Rd8 Kb5 44.Rh8 Ka6 45.Rh5 Ra2 46.Kg1 Nf3 47.Kf1 b5 48.Rf5 Ra3 49.Kg2–+ b4 50.Rf4 Ka5 51.Re4 Ka4 52.Kf1 Ra2 53.Re3?? Nd2 54.Ke1 b3 55.Re8 Ka3 56.Rb8 Nc4 57.Kd1 Kb2 58.Rb7 Ne3 59.Ke2 Kb1 60.Ke3 b2 61.Kd3 Ka1 62.Kc2 b1Q 63.Kc3 Qb7 64.Kc4 Qd7 65.Kc5 Ra5 66.Kc4 Qd5 67.Kc3 Ra4 68.Kc2 Qf3 69.Kd2 (69.Kd2 Ra2 70.Ke1 Qe2#; 69.Kc1 Qe3 70.Kd1 Qd3 71.Ke1 Re4#). giorgo – drybczus, kurnik, 2012.

5.Nbd2 d6

6.Qc1 e5 7.g3 Nc6 8.a3 a5 9.b5 Ne7 10.a4 b6 11.Bg2 Bb7 12.0-0 Rb8 13.c4 d5 14.Re1 dc4 15.Nc4 (15.Qc4?! Nd7+=) 15...e4 16.Nfe5 ed3 17.Nd3 Bg2 18.Kg2 Qd5 19.Kg1 h5 20.Nf4 Qa8 21.Bc3 h4 22.Qb2 hg3 23.hg3 Ned5 24.e3 Nc3 25.Qc3 Ne4 26.Qd3 Ba1 27.Ra1 Ng3 28.fg3 Qf3 29.e4 Qg4 30.Ne5 Qg5 31.Nf3 Qg4 32.Nh2 Qg5 33.Re1 Rbd8 34.Qc3 Rfe8 35.Nd5 Rc8?? 36.Nf6+– Kf8 37.Ne8 Re8 38.Qc7 Re7 39.Qf4 Qc5 40.Qe3 Qb4 41.Ra1 Re4 42.Qf2 Rg4 43.Nf3 Qc3 44.Rf1 Qc7 45.Kg2 Qf4 46.Nh2 Qe4 47.Qf3 Qc2?? 48.Rf2 Rg3 49.Kg3 Qc7 50.Kg2 Qc4 51.Ng4 Kg7 52.Ne5 Qe6 53.Nf7 Kg8 54.Ng5 Qe7+– 55.Qf6 (55.Qf6 Qf6 56.Rf6+–) 1–0. linakip – ryfus777, kurnik, 2011.

6.Qc1 e5 7.g3 Be6 8.Bg2 c6 9.a4 Qd7 10.0-0 Bh3 11.c4 Bg2 12.Kg2 Na6 13.Bc3 Rfe8 14.b5 Nc5 15.Bb4 Ne6 16.Rb1 Nd4 17.Nd4 ed4 18.Ne4 Ne4 19.de4 Re4 20.Qd1 Rae8 21.Re1 c5 22.Ba3 Qe6 23.Qd3 Re2 24.Re2 Qe2 25.Qe2 Re2 26.Kf3 Ra2 27.Bc1 Ra4 28.Bf4 Be5 29.Rc1 Bf4 30.Kf4 Kg7 31.Ke4 Ra2 32.Kf3 Kf6 33.h4 Ke6 34.Re1 Kd7 35.Rc1 a6 36.ba6 ba6 37.Rb1 Kc7 38.g4 d3 39.Ke3 Ra3 40.Kd2 Kc6 41.f4 d5 42.Rc1 dc4 43.Rc4 Kd5 44.Rc1 c4 45.Rb1 Kd4 46.Rb8 c3 47.Kd1 c2 48.Kd2–+ Ra1 49.Rc8 Ke4 50.Re8 Kf4 51.Kd3 c1Q 52.Re4 Kg3 53.h5 Qd1 54.Kc4 Ra4 55.Kc5–+ Qc1 56.Rc4 (56.Rc4 Rc4 57.Kb6 Rb4 58.Ka7 Qc7 59.Ka6 Qb6#). linakip – bialawisnia, kurnik, 2011.

6.Qc1 e5 7.g3 Bg4 8.Bg2 Nc6 9.a3 Re8 10.e4 d5 11.ed5 Qd5 12.0-0 Qd7 13.Qb1 Nd4 14.Nd4 ed4 15.Nf3 Nh5 16.Qa2 Be6 17.Qb1 Rad8 18.Bc1 Bg4 19.Bd2 Bf3 20.Bf3 c6 21.Qc1 Qf5 22.Bh6?? Bh6 23.Qh6 Qf3 24.Qg5 f6 25.Qh4 g5 26.Qh3 Re2 27.Qg2 Qg2 28.Kg2 f5 29.Rac1 f4 30.Kf3 Rde8 31.Kg4 Nf6 32.Kg5 fg3 33.hg3 Kg7 34.c3 dc3 35.Rc3 h6 36.Kf4 Kg6 37.Rc5 h5 38.Kf3 Ng4 39.d4 Nh2 40.Kg2 Nf1 41.Kf1 Re1 42.Kg2 b6 43.Rc6 (43.Rc6 R1e6 44.b5–+). linakip – shicharito555, kurnik, 2012.

6.c4 a5 7.ba5 Ra5 8.Qc2 Nc6 9.a3 e5 10.g3 Bg4 11.Bg2 Qd7 12.0-0 Bh3 13.Nb3 Ra6 14.d4 Bg2 15.Kg2 e4 16.Ng1 Na5 17.e3?? (17.Na5 Ra5 18.d5 Rfa8+=) 17...Nb3 (better is 17...Qa4–+) 18.Qb3-/+ Rb6 19.Qc3 c5 20.Ne2 h5 21.Rfb1 Nh7 22.a4 Ng5 23.a5?? (better is 23.Nf4=) 23...Qh3 24.Kg1 (24.Kh1 Nf3 25.ab6 Qh2) 24...Nf3 (24...Nf3 25.Kh1 Qh2) 0–1. sagonek – marionido (1625), kurnik, 2011.

6.c4 c5 7.a3+=.

6.c4 e5 7.e4 Nc6=.

6.c4 e5 7.Ne4 Ne8 (7...Ne4 8.de4 Be6 9.e3+=) 8.g3 (8.e3 f5 9.Nc3 Nc6=) 8...f5 9.Neg5 (9.Nc3 c6=) 9...h6+= 10.Nh3 g5 11.Nhg1 g4 (11...Nf6 12.Bg2+=) 12.Nh4 (12.Nd2 a5+=) 12...Nc6 (12...Na6 13.b5 Nc5 14.Bg2+=) 13.Bg2 (13.b5 Ne7+=) 13...Ne7 (13...Nb4!? 14.h3 Nf6-/+) 14.b5 (14.h3 a5=) 14...c6 15.a4 Rb8 (15...f4 16.Qd2+=) 16.Qd2= Nf6 17.h3 h5 (17...Be6 18.hg4 fg4 19.f3=) 18.hg4 fg4 19.Qe3 (19.Bc3+=) 19...Kh7 (19...Qa5 20.Kd1=) 20.Be4 (20.Qa7 Be6 21.Rb1 Ra8 22.Qb7 Qa5 23.Kf1 Bd7+=) 20...Kh8 (20...Ne4 21.de4 Be6 22.Ng2=) 21.Ng6 Ng6 22.Bg6 Bd7 23.f3 Qe7? 24.0-0-0 cb5 25.ab5 Rfc8 26.Kd2+/- Qf8 27.Qg5?? Bh6–+ 28.fg4 Bg5 (28...Bg5 29.Ke1 Bg4–+) 0–1. dick99 – solaris8, kurnik, 2011.

6.c4 e5 7.g3 Bg4 (7...a5 8.b5=) 8.Bg2= c6 9.0-0 Na6 (9...Nbd7 10.h3 Be6 11.Ng5=) 10.a3 (10.b5 cb5 11.cb5 Nc7=) 10...Nc7 (10...Re8 11.d4=) 11.c5 Bf3 (11...dc5 12.bc5 Nd7 13.Qc2=) 12.Nf3 (12.Bf3 dc5 13.bc5 Ne6 14.Be5 Nd7 15.Bg7 Kg7+=) 12...e4 (12...dc5 13.bc5 Nd7 14.Bh3=) 13.de4+= Ne4 (13...dc5!? 14.e5 Nd7+=) 14.Bg7+/- Kg7 15.Qd4 Nf6 16.cd6 Ne6? 17.Qe5 Kg8 18.Rfd1 Qd7?? 19.Qf6 (19.Qf6 Ng7 20.e4+–) 1–0. SneekyPete – ruach, ICC, 2002.

6.e4 c5=.

6.g3 a6 7.a3 Nc6 8.Bg2 Bd7 9.0-0 Rb8 10.c4 Re8 11.Nb3 b6 12.b5 ab5 13.cb5 Na7 14.a4 Nc8 15.Qd2 Bg4 16.Rac1 Bf3 17.ef3 (17.Bf3!? e5 18.Bc6+/-) 17...e6 18.Nd4 Ne7 19.Qb4 Nfd5 20.Qb3 Ra8 21.f4 Ra5 22.Bd5 Bd4?? 23.Bd4?? Nd5= 24.Rc6 Qa8 25.Rfc1 Ra4-/+ 26.Qb2? Rb4 27.Qa1 Qa1 28.Ra1?? Rd4 29.Kg2 Rd3 30.Re1 Rb3 31.g4 Nf4 32.Kg1 Nd5 33.Re4 e5 34.Rec4 Re7 35.Kg2 Rb5 36.Kg3 Kg7 37.Kh4 Rb3 38.h3 Rf3 39.Rc2 h6 40.g5 (40.g5 hg5 41.Kg4 e4 42.Rd6 cd6 43.Rd2 Nf6 44.Kg5 Re5 45.Kh4 g5#) 1–0. giorgo – chiarotti, kurnik, 2012.

6.g3 a6 7.Bg2 Nc6 8.a3 Rb8 9.0-0 Bd7 10.c4 b6 11.Qc2 Na7 12.Qb3 Bc6 13.a4 Nc8 14.b5 ab5 15.ab5 Bf3 16.ef3 e6 17.Ne4 Ne4 18.fe4 Bb2 19.Qb2 Ne7 20.Ra6 Qd7 21.Rfa1 f5 22.Ra7 fe4 23.Be4 e5 24.R1a6 Nc8 25.Ra8 Ra8 26.Ra8 Ne7 27.Qa2 Nf5 28.Rf8 Kf8 29.Qa8 Kg7 30.Qd5 Nd4 31.Kg2 Qf7 32.Qf7 Kf7 33.f3 Kf6 34.h4 h6 35.g4 g5 36.h5 Ne2 37.Kf2 Nf4 38.Ke3 Ke6 39.d4 ed4 40.Kd4 Ne2 41.Ke3 Nc3 42.Kd3 Na4 43.Kc2 Ke5 44.Kd3 Nc5 45.Kc3?? Ne4–+ 46.fe4 Ke4 47.Kb4 Kf4 48.Kc3 Kg4 49.Kd4 Kf3 50.Kd5 g4 51.Kc6 g3 52.Kc7 g2 53.Kb6 g1Q 54.Kc7 Qc5 55.Kd7 Kf4 56.Ke6 Kg5 57.Ke7 Kh5 58.Ke6 Kg5 59.Ke7 h5 60.Ke6 h4 61.Ke7 h3 62.Ke6 h2 63.Ke7 h1Q 64.Ke6 Qe1 65.Kd7 Qd2 66.Ke7 Qc4 67.Kd7 Qdd5 68.b6 Qb7 69.Kd8 Qcc8# (69...Qg8#) 0–1. linakip – atadek, kurnik, 2011.

6.g3 a6 7.Bg2 Nc6 8.a3 Rb8 9.0-0 e5 10.Qc1 Be6 11.Re1 Nd7 12.Ng5 Qg5 13.Nf3 Qe7 14.c4 f5 15.Ng5 Bh6 16.h4 Qf6 17.Bc3 Rfd8 18.Bd2 Kg7 19.Ne6 Qe6 20.Bh6 Kg8?? 21.Be3 Ne7 22.Qb2 Nf6 23.Bg5 Kg7 24.Qc1 Nc8 25.Qd2 Ng8?? 26.Qb2 h6 27.Bd2 g5 28.e4 f4 29.h5 Nf6 30.Bf3 g4 31.Bg2 f3 32.Bf1 Nh5 33.d4 Ne7 34.Qc1 Qg6 35.de5 de5 36.Bc3 Kf6 37.Qb2 Nc6 38.b5 Nd4 39.ba6 ba6 40.Qc1 Nb3 41.Qc2 Na1 42.Ra1 Ng7 43.Re1 h5 44.Qc1 h4 45.Qe3 (45.Qe3 Ne6 46.gh4–+). linakip – stop6, kurnik, 2012.

6.g3 b6 7.Bg2 Bb7 8.0-0 Nbd7 9.a3 a5 10.c3 ab4 11.cb4 Ba6 12.Qc2 Qc8 13.Rfc1 Ra7 14.Qb3 h6 15.e4 e5 16.b5 Bb7 17.a4 Nc5 18.Qc2 Ra4 19.Ra4 Qd7 20.Rb4 c6 21.bc6 Qc6 22.Nc4 d5 23.Nb6 de4 24.Ne5 Qd6 25.Nbc4 Qd3 26.Qd3 Nd3 27.Nd3 ed3 28.Bb7 1–0. linakip – jozbug, kurnik, 2012.

6.g3 b6 7.Bg2 Bb7 8.0-0 Nbd7 9.a3 c5 10.c3 a5 11.b5 a4 12.c4 Qc7 13.Qc2 Rad8 14.Qa4 e6 15.Qc2 d5 16.Rfe1 Rc8 17.a4 Qb8 18.Nb3 Qa8 19.a5 dc4 20.dc4 Ne5?? 21.a6 Nf3 22.ef3 Bf3 23.Bf3 Qf3 24.Nd2 Qg4 25.a7 Qh3 26.Qd3?? Ng4-/+ 27.f3?? Qh2 28.Kf1 Qf2# 0–1. giorgo – fanda62, kurnik, 2012.

6.g3 b6 7.Bg2 c5 8.bc5 bc5 (worse is 8...dc5 9.Ng5 Nd5 10.Bg7 Kg7 11.c4+–) 9.0-0 Nc6 10.Qc1 Ba6 11.c4 Bc8 12.Bc3 a5 13.a4 Nb4 14.Nb3 Bg4 15.Qd2 h5 16.Nc1 Bh6?? (16...Bd7 17.Ng5 Ra6 18.Ne4=) 17.Qb2 (better is 17.Qh6 Bf3 18.Bf3+–) 17...Rb8 18.Na2 e5 19.Nb4 cb4 20.Bd2 Bg7 21.Rab1 Qc7 22.Qb3 Nd7 23.Rfe1 Nc5 24.Qa2 Be6 25.Be3 Rfd8 26.Bc5 Qc5 27.Qb3 d5 28.Rec1 dc4 29.dc4 e4 30.Ng5 Rd4 31.Ne6 fe6 32.e3 Rd3 33.Qa2 Ra3 34.Qe2 Ra4 35.Be4 Kh7 36.Bd3 Ra3 37.Qc2 Rc3 38.Bg6 Kh6 39.Qe4 Rc1 40.Rc1 Qe5 41.Kg2 a4 42.Qe5 Be5 43.Bd3 a3 44.f4 Bc3 45.c5 a2 46.c6 a1Q 47.Ra1 Ba1 48.Bc4 Rc8 49.Be6 Rc6 50.Bd5 Rc3 51.Kf3 b3 52.h4 b2 53.Be4 Rc1 54.g4 hg4 55.Kg4 b1Q 56.Bb1 Rb1 57.Kf5 Rh1 58.Kg4 Bf6 59.h5 Rh5 60.e4 Bb2 61.f5 Be5 62.Kf3 Rg5 0–1. linakip – soarenicolae4 (1615), kurnik, 2011.

6.g3 b6 7.Bg2 c6 8.0-0 Bb7 9.Qc1 c5 10.a3 Nc6 11.c3 Ne5 12.Ne5 Bg2 13.Kg2 de5 14.Nf3 e4 15.de4 Ne4 16.bc5 Nc5 17.c4 f6 18.Qc2 Qc7 19.Bd4 Rad8 20.Be3 e5 21.Rfd1 f5 22.Bc5 Qc5 23.Rd2 e4 24.Nd4 Bd4 25.e3 Ba1 0–1. linakip – koliobolio, kurnik, 2012.

6.g3 c5 7.bc5 dc5 8.Bg2 Nc6 9.0-0 Qc7 10.Qc1 Rb8 11.c4 b6 12.a3 Be6 13.Bc3 Bg4 14.Qb2 Nh5 15.Bg7 Ng7 16.Ne4 Bf3 17.ef3 Nd4 18.Rfe1 Ndf5 19.Ng5 e6 20.Ne4 Nd4 21.Rac1 Rbd8 22.f4 f5 23.Ng5 Rf6 24.Nf3 Nf3 25.Bf3 Rd3 26.Rcd1 Rf3?? 27.Qf6+– (27.Qf6 Qf7 28.Rd8 Ne8 29.Qe6 Qe6 30.Re6+– (30.Re8 Qe8 31.Re8 Kf7+=)) 1–0. linakip – atadek, kurnik, 2012.

6.g3 c5 7.bc5 dc5 8.Bg2 Nc6 9.Qc1 Rb8 10.0-0 Qc7 11.a3 b6 12.Re1 Bb7 13.Bc3 Rfd8 14.Qb2 Ne8 15.Ne4 Bc3 16.Qc3 Nd4 17.Qb2 Be4 18.de4 Nf3 19.ef3 Nd6 20.Qb3 Qd7 21.Rad1 Qb5 22.c4?? Qb3–+ 23.e5 Nc4 24.Rd8 Rd8 25.Bf1 Rd1 26.Rd1 Qd1 27.Kg2 Nd2 28.Bb5 0–1. linakip – ketiw01, kurnik, 2011.

6.g3 c6 7.Bg2 Bd7 8.Qc1 Qc8 9.0-0 Bh3 10.c4 Bg2 11.Kg2 Nbd7 12.a3 Nb6 13.a4 Nbd7 14.Qc2 e5 15.e4 Nh5 16.Rh1 Ndf6 17.Nf1 Qg4 18.Ne3 Nf4 19.Kf1 Qf3 20.Rg1 Nh3 21.Ng2 Ng1 22.Kg1 Ng4 23.Rf1 Qf6 24.Bc1 Bh6 25.f3 Bc1 26.Qc1 Qe6 27.fg4 Qg4 28.Qe3 f5 29.h3 Qh5 30.ef5 Rf5?? 31.Rf5?? Qf5–+ 32.Kh2 b6 33.Nh4 Qf1 34.Nf3 Rf8 35.Ng5 Rf2 (35...Rf2 36.Qf2 Qf2 37.Kh1 Qe1 38.Kg2 Qd2 39.Kf3 Qd3 40.Kg2 Qc2 41.Kf3 Qf5 42.Ke2 Qg5–+) 0–1. linakip – goniec80, kurnik, 2011.

6.g3 c6 7.Bg2 e5 8.0-0 a6 9.Qc1 Be6 10.Ng5 Nd5 11.Ne6 fe6 12.a3 Nd7 13.e4 Ne7 14.Nf3 d5 15.Ng5 Rf6 16.ed5 cd5 17.c4 h6 18.Nf3 Rf8 19.cd5 ed5 20.Re1 Nc6 21.Nh4 Nf6 22.Ng6 Re8 23.Nh4 e4 24.Nf5 Qd7 25.Ng7 Kg7 26.de4 de4 27.Qf4 Rad8 28.Bf6 (28.Bf6 Kg6 29.Bd8 Rd8 30.Be4 Kg7 31.Bf5+–) 1–0. linakip – dobosz21, kurnik, 2011.

6.g3 c6 7.Bg2 Bg4 8.0-0 Bf3 9.ef3 Nbd7 10.a3 Qb6 11.c4 Qc7 12.d4 e6 13.Qc2 Rab8 14.c5 dc5 15.dc5 Ne5 16.f4 Ned7 17.Nc4 b5 18.Nd6 Rbd8 19.Bc3 Ne8 20.Ne4 Ndf6 21.Nd2 Ng4 22.Qb2 Bc3 23.Qc3 Ngf6 24.Rfd1 Qe7 25.Bc6 Ng7 26.Bb5 Nf5 27.Bd3 Nh6 28.Nf3 Nhg4 29.Ne5 Ne5 30.Qe5 Ng4 31.Qe2 f5 32.h3 Nh6 33.Qe5 Nf7 34.Qc3 Nh6 35.Re1 Nf7 36.Bc4 Nh6 37.Be6 Rf7 38.Bf7 Qf7 39.c6 Rc8 40.b5 Qe7 41.a4 Qc7 42.a5 Rd8 43.Qc4 Kg7 44.Qc5 Qf7 45.b6 Rd5 46.Qc3 Kg8 47.b7 Qf8 48.c7 Rb5 49.a6 Qc5 50.c8Q (50.c8Q Qf8 51.Re8 Rb1 52.Rb1 Qe8 53.Qe8#) 1–0. linakip – aldimeola, kurnik, 2012.

6.g3 Nc6 7.a3 a6 8.Bg2 Bg4 9.0-0 e5 10.c4 d5 11.Qb3 d4 12.Qc2 Qe7 13.h3 Bf3 14.ef3 b5 15.Rfe1 bc4 16.Nc4 (worse is 16.dc4 Qd6+/-) 16...Nd7 17.Nd2 Nd8 18.Ne4 Ne6 19.Qb3 Nb6 20.a4 c5 21.b5 ab5 22.Qb5 Nd7 23.Ba3 Rab8 24.Qa5 Ra8 25.Qb5 Rfb8 26.Qc4 Nb6 27.Qb5 Ra4 28.Bc5 Ra1 29.Ra1 Nc5 30.Qc5 Qc5 31.Nc5 Nd5 32.Bf1 Bf8 33.Nd7 Rd8 34.Nf8 Kf8 35.Kg2 Kg7 36.Ra5 f6 37.Rc5 Nb4 38.Be2 Ra8 39.f4 ef4 40.gf4 Ra2 41.Kf3 f5 42.Rc4 Nd5 43.Rd4 Nc3 44.Bf1 Nd1 45.Rd7 Kh6 46.Be2 Nc3 47.Bf1 Nd1 48.Rd5 Rf2 49.Kg3 Rf1 50.d4 Ne3 51.Rd8 Rd1 52.Kf3 Nc4 53.d5 Rd3 54.Ke2 Rh3 55.d6 Nd6! 56.Rd6 Kh5 57.Rd8 h6 58.Kf2 Kg4 59.Rd4 Rf3 60.Kg2 Rf4 61.Rd3 h5 62.Rg3 Kh4 63.Rh3 Kg4 64.Rg3 Kh4 65.Rh3 Kg5 66.Rg3 Kf6 67.Ra3 Rg4 68.Kh3 f4 69.Ra6 Kg5 70.Ra5 Kh6 71.Ra3 Rg3! 72.Rg3 fg3 73.Kg3 g5 74.Kh3 h4 75.Kg4 Kg6 76.Kh3 ½–½. linakip – hoangvmom, kurnik, 2011.

6.g3 Nc6 7.a3 b6 8.Bg2 Bb7 9.Qc1 Ne5 10.Nb3 Nf3 11.ef3 e5 12.0-0 d5 13.c4 e4 14.de4 de4 15.fe4 Qd3 16.Qc3 Qc3 17.Bc3 Rfe8 18.f3 Rad8 19.c5 Rd3 20.Rac1 Bh6 21.Rc2 Red8 22.Bf6 R8d7 23.c6 Bc6 24.Rc6 Rb3 25.f4 Ra3 26.e5 Bg7 27.Bh4 Rb3 28.Rc4 b5 29.Re4 Rd2 30.Bf3 Rbb2 31.h3 h6 32.g4 g5 33.fg5 hg5 34.Bg5 Rh2 35.h4 Kh7 36.h5 Bf8 37.Bf4 Rhc2 38.e6 fe6 39.Rd4 Bb4 40.Be4 (40.Be4 Kg7 41.h6 Kf6 42.h7 Rg2 43.Bg2 Rg2 44.Kg2 Kg7 45.Rd7 Be7 46.Be5 Kh7 47.Re7 Kg6 48.Rg7 Kh6 49.Rh1#) 1–0. linakip – rushatek, kurnik, 2011.

6.g3 Nc6 7.a3 Bg4 8.Bg2 Rb8 9.0-0 b5 10.c4 bc4 11.Nc4 d5 12.Ne3 Bf3 13.ef3 e6 14.Qc2 Ne7 15.Be5 Rc8 16.Qb2 Nf5 17.Nf5 ef5 18.f4 c6 19.Rac1 Ne8 20.Bg7 Ng7 21.Rfe1 Re8 22.Qc3 d4 23.Qc4 Re1 24.Re1 c5 25.b5 Ne6 26.a4 Qa5 27.Bc6 Qe1–+ 28.Kg2 Qc3 29.Bd5 Qc4 30.Bc4 Nc7 31.a5 Rb8 32.b6 ab6 33.ab6 Rb6 34.Kf3 Kg7 35.h3 h5 36.g4 fg4 37.hg4 h4 38.Kg2 Rb2 39.Kh3 Rf2 40.Kh4 Rf4 41.Kg5 Rf1 42.Kh4 Ne6 43.Kg3 Ng5 44.Kg2 Rf3 45.Bd5 Rd3 46.Bc4 Rc3 47.Bf1 d3 48.Kf2 d2 49.Ke2 Rc2 50.Kd1 Ra2 51.Be2 Ne4 52.Bf3 Ra1 53.Kc2–+ Ra2 54.Kd1 Ra1 55.Kc2–+ d1Q! 56.Bd1 Rd1! 57.Kd1 f5 58.gf5 gf5 59.Ke2 Kf6 60.Ke3 c4 61.Kd4 c3 62.Kd3 Ke5 63.Kc2 f4 64.Kd3 f3 65.Ke3 c2 66.Kf3 c1Q 67.Ke2 Nc5 68.Kf3 Qf4 69.Ke2 Ke4 70.Kd1 Qe3 71.Kc2 Qd3 72.Kb2 Qb3 73.Kc1 Ke3 (73...Nd3 74.Kd2 Qb2 75.Kd1 Qc1 76.Ke2 Qe1#) ½–½. linakip – zetjop, kurnik, 2012.

6.g3 Nd5 7.Qc1 Nb4 8.Bg7 Kg7 9.Qb2 e5 10.Qb4 a5 11.Qb3 Nc6 12.Bg2 Rb8 13.0-0 b6 14.a3 Be6 15.Qb2 Ne7 16.c4 c5 17.Qc3 Kg8 18.Ne4 f5 19.Neg5 Bd7 20.Nd2 h6 21.Ngf3 b5 22.cb5 Bb5 23.Rfb1 Bc6 24.Nh4 Kh7 25.Bc6 Nc6 26.Nhf3 Qc7 27.Nc4 d5 28.Ncd2 d4 29.Qc4 Ne7 30.Nb3 e4 31.Ne1 ed3 32.Nd3 (32.Qd3?! Nd5 33.Nd2 Qe7+–; 32.Nc5?! Rb1 33.Rb1 de2+–) 1–0. linakip – bogo1960, kurnik, 2011.

6.g3 Bd7 7.Bg2 Qc8 8.0-0 c5 9.a3 cb4 10.ab4 Nc6 11.b5 Ne5 12.c4 Nf3 13.ef3 d5 14.Qb3 dc4 15.dc4 Be6 16.Rac1 a6 17.ba6 Ra6 18.Bc3 Qc7 19.Qb2 Rb6 20.Qa1 Ra6 21.Qb2 Rb6 22.Qa3 Rd8 23.Rfd1 Ra6= 24.Qb3 Rda8 25.Qb2 h5 26.f4 Rb6 27.Qc2 Bf5 28.Be4?? Ne4–+ 29.Ne4 Qc6 30.Bg7 Be4 31.Qc3 f6 32.Bf6 ef6 33.Qf6?? Bh1 34.Qg6?? Qg6 (34...Qg6 35.Kh1 Qe4 36.Kg1 Rb2–+) 0–1. giorgo – aligatorrex, kurnik, 2012.

6.g3 Bd7 7.Bg2 Qc8 8.0-0 Bh3 9.a3 Bg2 10.Kg2 e5 11.e4 c5 12.c3 cb4 13.ab4 b6 14.Rc1 a5 15.ba5 Ra5 16.Nc4 Rb5 17.Nd6 Qd7 18.Nb5 Qb5 19.Rb1 Qc6 20.Rc1 Qb5 21.Rb1 Qc6 22.Qb3 Nbd7 23.Rfc1 Nc5 24.Qd1 Rb8 25.Ne5 Qe6 26.Nf3 b5 27.Ba3 Ncd7 28.Bb4 Qg4 29.h3 Qe6 30.Nd4 Qb6 31.Qe2 Ne5 32.Nf3 Nc6 33.d4 Nb4 34.Rb4 Nd7 35.Qd3 Qa5 36.Rcb1 Qa2 37.R4b2 Qa3 38.Rb5 Rb5 39.Qb5 Nf8 40.Rb3 Qa1 41.e5 Ne6 42.Qb8 Bf8 43.Nd2 Kg7 44.Ne4 Qd1 45.Nd6 Nc7 46.Qc7 Qb3 47.Qf7! Qf7 48.Nf7 Kf7 49.f4 Ke6 50.Kf3 Ba3 51.Ke4 Bb2 52.c4 Ba3 53.g4 h6 54.f5 gf5 55.gf5 Kf7 56.h4 Be7 57.h5 Bg5 58.Kd5 Bf4 59.c5 Bg3 60.c6 Bf2 61.c7 Ke7 62.c8Q Be3 63.Qe6 (63.Qe6 Kf8 64.f6 Bf4 65.Qe7 Kg8 66.Qg7#; 63.f6 Kf7 64.Qd8 Bd4 65.e6#) 1–0. linakip – aligatorrex, kurnik, 2011.

6.g3 Bd7 7.Bg2 Qc8 8.0-0 h6 9.a3 Bh3 10.c4 Bg2 11.Kg2 Kh7 12.Rh1 Rh8 13.a4 Kg8 14.Qb3 Nc6 15.a5 b6 16.b5 Na5 17.Qa4 d5 18.Bc3 dc4 19.Nc4 Nc4 20.Qc4 e6 21.Ne5 Nd5 22.Bb2 c5 23.e4 Nb4 24.Bc3 a5 25.Bb4 ab4 26.d4 Ra1 27.Ra1 Qd7?? 28.Nd7+– Kh7 29.Ra6 Rd8 30.Nb6 Bd4 31.Qc5 Bc5+= 32.Kf3 Rd6 33.Nc4 Rd8 34.b6 Rb8 35.Ra5 Bb6 36.Nb6 Rb6 37.Ke3 Kg7 38.Kd3 Kf6 39.Kc2 g5 40.f3 e5 41.Kb3 Kg6 42.h3 f6 43.g4 h5 44.Rd5 h4 45.Rc5 Kh6 46.Rc8 Kg7 47.Rc7 Kg6 48.Rc8 Kf7 49.Rh8 Kg7 50.Re8 Kf7 51.Rd8 Kg6 52.Rd7 Kh6 53.Ra7 Kg6 54.Ra4 Rd6 55.Kb4 Rd3 56.Ra1 Rf3 57.Rh1 Re3 58.Kc4 Re4 59.Kd5 Rd4 60.Ke6 Rb4 61.Kd5 Rb5 62.Ke4 Rb4 63.Ke3 Rb3 64.Ke4 f5! 65.gf5 Kf6 66.Rh2 Rb4 67.Kf3 Rf4 68.Ke3 Kf5 69.Kd3 Ke6 70.Ke3 Rd4 71.Kf3 Kd5 72.Ke3 e4 73.Ke2 Rd3 74.Rh1 Kd4 75.Rh2 e3 76.Rh1 Rd2 77.Ke1 Kd3 78.Rf1 e2 79.Rf3-/+ Kc2 80.Re3 Rd1 81.Ke2 Rd2 82.Kf3 Rh2 83.Kg4 Rg2 84.Kh5 Rg1 85.Rf3 Kc1 86.Ra3 g4?? 87.Kh4 gh3?? 88.Kh3 Rh1 89.Kg3 Rh7 90.Ra1 Kc2 91.Ra6 Rg7 (91...Rg7 92.Kf4 Kd3=). linakip – aligatorrex, kurnik, 2011.

6.g3 Be6 7.Bg2 h6 8.0-0 Nd5 9.a3?? (9.Bg7 Kg7 10.c4 Nf6+=) 9...a5 (better is 9...Bb2 10.Qb1 Ba1 11.Qa1 a5–+) 10.Qc1 b5 (worse is 10...ab4 11.Bg7 Kg7 12.ab4+/-) 11.Bg7 Kg7 12.ba5 Ra5 13.Qb2 f6 14.e4 Nb6 15.Nb3 Ra4 16.Nbd4 Bd7 17.Nb5 Nc6 18.Nc3 Ra5 19.Nd2 e5 20.Nb3 Na4 21.Na4 Ra4 22.Nd2 Be6 23.Nb1 Qb8 24.Qb8 Rb8 25.Nc3 Ra5 26.a4 Nd4 27.Rfc1 c6 28.Bf1 f5 29.Kg2 f4 30.Ne2?? f3–+ 31.Kg1 fe2 32.Bg2 Rb2 33.c3 Nb3 34.Rcb1 Na1 35.Rb2 e1Q 36.Bf1 Qc3 37.Rb7–+ Kf6 38.Kg2 Ra4 39.Rb8 d5 40.Rf8 Ke7 41.Rh8 de4 42.de4 Re4 43.Rh6 Bd5 44.Kg1 Rg4 45.Rh7 Kf8 46.Rh8 Kg7 47.Re8 Qf3 48.h4 Qh1# 0–1. linakip – voltair, kurnik, 2012.

6.g3 Bg4 7.Bg2 Qc8 8.0-0 Bh3 9.e4 Bg2 10.Kg2 e5 11.a3 a6 12.c4 Nbd7 13.Rh1 b6 14.Nb3 Qb7 15.Rc1 c5 16.Bc3 Rfd8 17.Ra1 Ne4 (better is 17...b5!?=) 18.de4+/- Qe4 19.Re1 (19.Rc1 Qc6+/-) 19...Qc6 20.Qd5?? (better is 20.Rc1+/-) 20...Qd5+= 21.cd5 c4 22.Nbd2+= b5 23.a4 Nf6 24.a5 Nd5–+ 25.Bb2? Nb4 26.Ne4 f5 27.Neg5 Nd3 28.Re2 Nb2 29.Ne6 Rd7 30.Ng7 Kg7 31.Rb2 c3 32.Rc2 b4 33.Rb1-/+ e4 34.Nd4 Rb7 35.Rb3?? Rc8–+ 36.Kf1? d5 37.Ke2 Rc4 38.Ke3 Kf6 39.h4 h6 40.Ne2 Rd7 41.Nd4 Rb7 42.f3?? Ke5 43.f4 Kf6 44.Ne2 Rb5 45.Nd4 Ra5 46.Rb4 Rb4 47.Rc3 (47.Rc3 Raa4 48.Rc6 Ke7 49.Nc2–+). giorgo – fgbgrhg, kurnik, 2012.

6.g3 Bg4 7.Bg2 Ne8 8.Qc1 Bb2 9.Qb2 Ng7 10.0-0 e5 11.a3 Nc6 12.c4 b6 13.Nb3 a5 14.b5 Ne7 15.a4 f5 16.Ne5 de5 17.Ba8 Qa8 18.f3 (worse is 18.Qe5 Bh3 19.f3 Bf1 20.Rf1 Qd8-/+) 18...Bh3 19.Rf2 f4 20.g4 h5 21.gh5 Nh5 22.d4 Nf5 23.de5 Ne3 24.Qd4 Rd8 25.Qe4 Qe4 26.fe4 Re8 27.c5 Re5 28.cb6 cb6 29.Nd4 Re4 30.Nf3 Bg4 31.Ng5 Re5 32.Nf3 Bf3 33.ef3 Rc5 34.Rd2 Rc3 35.Kf2? Nc4 36.Rd8 Kh7 37.Rb8 Ne5 38.Rb6 Rf3 39.Kg2 Rb3 40.Re6 f3 41.Kf2?? Ng4 42.Kf1 Rb2 43.h3 Ng3 44.Kg1 Nh6 45.Rf6 Nhf5 46.b6 Nh4 47.Rf7 Kh6 48.b7 Ne2 49.Kf1 Nd4 50.Rd1 Nc6 51.Rc7?? Nb8 52.Rd8 (52.Rd8 Nf5 53.Rf8–+). giorgo – zetjop, kurnik, 2012.

6.g3 Bg4 7.Bg2 Bf3 8.ef3 c6 9.0-0 Nbd7 10.Re1 e5 11.a3 a6 12.d4 ed4 13.Bd4 Re8 14.Rf1 Qc7 15.Bb2 Re7 16.Ne4 Ne4 17.Bg7 Ng3 (17...Kg7?! 18.fe4 Nf6 19.Qd4=) 18.hg3 Kg7 19.Qd4 f6 20.c4 Rae8 21.Rad1 Ne5 22.f4 Nf7 23.a4 c5 24.bc5 dc5 25.Qd5 b6 26.Rb1 Rd7 27.Qf3 Rd4 28.Rfc1 Red8 29.Bf1 Nd6 30.Qb3 Nc8 31.a5 ba5 32.Qa4 g5 33.fg5 fg5 34.Qc2 Qf7 35.Qe2 Rd2 36.Qe5 Kh6 37.Qc5 Ne7 38.Qe3 Nf5 39.Qb6 Kh5 40.c5 Ng3! 41.c6 R8d4 42.c7 Qf2# 0–1. linakip – tengizi, kurnik, 2011.

6.h3 e5 7.e4 Nbd7 8.Be2 a5 9.c3 ab4 10.cb4 c5 11.a3 cb4 12.ab4 Ra1 13.Qa1 b6 14.Nc4 Qc7 15.0-0 Bb7 16.Rc1 Ra8 17.Qb1 Qb8 18.Qc2 b5 19.Na5 Ba6 20.Qc6 Bf8 21.d4 ed4 22.Bd4 Be7 23.e5 de5 24.Ne5 Ne5 25.Be5 Ne8?? 26.Qd7 Qe5–+ 27.Bf3 Rd8 28.Qc6 Bc8 29.Nb3 Bb4 30.Qe4 Qe4 31.Be4 Ba3 32.Ra1 b4 33.Ra2 Bf5 34.Bc6 Nd6 35.g4 Be6 36.Ba4 Bb3 37.Bb3 Ne4 38.Re2 Nc3 39.Re7 Rf8 40.Kg2 Kg7 41.g5 h6 42.h4 hg5 43.hg5 Bc1 44.Re5 Bf4 45.Rc5 Bd6 46.Ra5 Be7 47.f4 Bd6 48.Kf3 Re8 49.Bd5 Rc8 50.Ra7 Nd5 51.Rb7 1–0. linakip – ryszardp33, kurnik, 2012.

6.g3 a5

7.a3 ab4 8.ab4 Ra1 9.Qa1 e5 10.Bg2 Nc6 11.b5 Ne7 12.0-0 Bg4 13.c4 Qd7 14.Qa7 b6 15.Ra1 h5 16.Qb7 h4 17.Ra7 (17.gh4 e4 18.Nd4 ed3 19.ed3 d5+=) 17...hg3 18.hg3 Ne8 19.Ne4 Bh3 20.Nc3 Bg2 21.Kg2 Qg4 22.Nd5 Nd5 23.Qd5 Bh6 24.Ra8 Kg7?? 25.Qc6 Nf6?? 26.Rf8 Kf8 27.Qc7 Kg7 28.Qd6 Qf5 29.Qe5 Qe5 30.Be5 Bc1 31.g4 1–0. wictorio (1940) – kadz55 (1645), kurnik, 2012.

7.ba5 Ra5 8.Bg2 b6 9.0-0 Bb7 10.Qc1 Nbd7 11.Nb3 Ra7 12.a3 Ne5 13.Nbd2 Nf3 14.ef3 e5 15.Nb3 c5 16.Bc3 d5 17.Be5 d4 18.Bf4 Nd5 19.Bh6 Nc3 20.Re1 Bh6 21.Qh6 Qf6 22.Nd2 Qg7 23.Qg7 Kg7 24.Nc4 Bd5 25.Nb6 Be6 26.a4 Rb8 27.a5 Ra6 28.f4 Rab6 29.ab6 Rb6 30.h3 Rb2 31.Rac1 h5 32.Bf3 Bh3 33.Kh2 Be6 34.Be4 Bd5 35.f3 Be4 36.fe4 f5 37.e5 Kf7 38.Kg2 Ke6 39.Kf3 Nd5 40.Re2 1–0. linakip – farukaligera, kurnik, 2012.

7.ba5 Ra5 8.Bg2 c5 9.0-0 h6 10.c4 Qb6 11.Qc1 Qa7 12.a3 Nc6 13.Nb3 Ra6 14.Nfd2 Bd7 15.Bc3 e5 16.a4 Nd4 17.Re1 Nb3 18.Nb3 Ra4 19.Ra4 Qa4 20.Qc2 Bf5 21.Ra1 Qc4 22.dc4 Bc2 23.Na5 b6 24.Nc6 Bb3 25.Ne7 Kh7 26.Nd5 Rb8 27.Nf6 Bf6 28.Bd5 Kg7 29.Ra7 Rg8?? 30.Rb7 e4?? 31.e3 Bc3–+ 32.Rb6 Bc2 33.Rd6 Bb4 34.Rd7 Rf8 35.Kf1 h5 36.h4 Kf6 37.Rd6 Ke5 38.Rd7 Kf6 39.Ke2 Bd3 40.Kd1 Bc3 41.Rc7 Bb4 42.Kc1?? g5 43.hg5 Kg5 44.Bf7 Ra8 45.Kb2 Be1 46.Rc5 Kf6 47.Bh5 Bf2 48.Rc6 Ke5 49.Bg4 Be3 50.Re6 Kd4 51.c5 Rb8 52.Ka3 Bc1 53.Ka4–+ Kc5 54.Re5 Kd4 55.Re7 Bd2 56.Rd7 Kc3 57.Bf5 Ra8 58.Ra7 Ra7# 0–1. linakip – farukaligera, kurnik, 2012.

7.ba5 Ra5 8.Bg2 e5 9.0-0 Nbd7 10.Nb3 Ra7 11.Qc1 Nb6 12.Qb1 Nbd5 13.a3 e4 14.c4 ef3 15.Bf3 Ne7 16.Bc3 Nc6 17.Qb2 Nh5 18.Bh5 Bc3 19.Qc3 gh5 20.d4 Qf6 21.e3 Bh3 22.Rfe1 Qf3 (22...Qf3 23.e4 Qg2#) 0–1. linakip – giovanni5, kurnik, 2011.

7.b5 c6 8.a4 cb5 9.ab5 Nbd7 10.Bg2 Nc5 11.0-0 Bd7 12.c4 Rc8 13.Nb3 b6 14.Nc5 dc5 15.Qc2 Qc7 16.Bc3 Rcd8 17.Qb2 Nh5 18.Bg7 Ng7 19.Rfe1 Nf5 20.Ne5 Nd4 21.Nc6 Bc6 22.Bc6 Nc6 23.bc6 Qc6 24.Rab1 Rb8 25.Qb5 Qb5 26.cb5 Rfd8 27.Rbc1 e5 28.Rc4 Rd4 29.Rec1 f5 30.Kf1 Kf7 31.Ke1 Ke6 32.Kd2 Rbd8 33.R4c3 Rb4 34.e3 Rb5 35.d4 ed4 36.ed4 Rd4 37.Ke2 Rb2 38.Kf3 Rdd2 39.Rf1 Kf6 40.Re3 g5 41.h3 h5 42.Re8 g4 43.hg4 hg4 44.Kg2 a4 45.Rf8 Ke6 46.Re8 Kd5 47.Rd8 Kc4 48.Rf8 a3 49.Rf5 a2 50.Rf4 Kb3 51.Rg4 Rb1 52.Rf4 Rf1 53.Kf1 a1Q 54.Kg2 Rd1 55.Rf3 Kb4 56.Rf4 c4 57.Rf3 Rg1 58.Kh3 Qh8 59.Kg4 Qg7 60.Kf4 Re1 61.Re3 Qf6 62.Kg4 Re3 63.fe3 c3 (63...c3 64.e4 c2 65.e5 Qg6 66.Kf3 Qf5 67.Kg2 Qe4 68.Kh3 c1Q 69.g4 Qf3 70.Kh4 Qh6#) 0–1. linakip – drgolibroda, kurnik, 2012.

6.g3 Nbd7

7.Qc1 b6 8.Bg2 Bb7 9.0-0 Rb8 10.a3 c5 11.c3 d5 12.Qb1 e5 13.e4 de4 14.de4 Qc8 15.c4 Rd8 16.Rd1 Nf8 17.Ne5 Ng4 18.Ng4 Qg4 19.Bf3 Qc8 20.Bg7 Kg7 21.Qb2 Kg8 22.b5 Ne6 23.Nf1 Nd4 24.Bg2 Qg4 25.Ne3 Qg5 26.Nd5 Bd5 27.ed5 Rd6 28.Qc3?? Rf6 29.Qd3 Re8 30.Rd2 Nb3?? 31.Qb3 Qd2+= 32.Rf1 Re1 33.Qe3?? Rf1 34.Bf1-/+ Qc1?? 35.Qc1+– 1–0. linakip – jozsidry, kurnik, 2011.

7.Bg2 a6 8.a3 Rb8 9.0-0 b5 10.c4 Bb7 11.Qc1 c5 12.cb5 ab5 13.bc5 Nc5 14.Qc2 e5 15.Nb3 Nb3 16.Qb3 Bd5 17.Qc3 e4 18.Ne1 Qe7 19.de4 Be4 20.Nf3 Rbc8 21.Qd4 Rc4 22.Qd2? Rfc8 23.Rac1 Rc1 24.Rc1 Rc1 25.Qc1 Bf3 26.Bf3 Bf8? 27.Qc3 Bg7 28.Qc8 Qf8 29.Qf8 Kf8 30.Bc6 Bh6?? 31.Bf6+– Bg5 32.Bg5 f6 33.Bf6 d5 34.Bd5 g5 35.Bc6 h6 36.Bb5 h5 37.a4 h4 38.a5 h3 39.a6 g4 40.a7 Kg8 41.a8Q Kh7 42.Bd7 Kh6 43.Bg4 Kh7 44.Qe4 Kg8 45.Qe6 Kh7 46.Bf5 Kh6 47.Bh4 Kg7 48.Qg6 Kf8 49.Qf6 Kg8 50.Be6 Kh7 51.Qf7 Kh6 52.Qf4 Kg7 53.Bf6 Kg6 54.Qf5 Kh6 55.Qg5 Kh7 56.Qg7# 1–0. giorgo (1625) – moni75, kurnik, 2012.

7.Bg2 Rb8 8.0-0 c5 9.a3 a6 10.c3 b5 11.bc5 Nc5 12.d4 Na4 13.Qc2 Qc7 14.Rfc1 Bd7 15.e4 Rfc8 16.c4 Nb2 17.Qb2 bc4 18.Qc2 c3 19.Nb1 Rb2 20.Qc3 Qc3 21.Nc3 Rc3 22.Ne1?? Rc1 23.Rc1 Rb8 24.Nd3 Rc8 25.Rb1 Bb5 26.Nb4 Ng4 27.e5 de5 28.d5 Nf6 29.Rd1 e4 30.d6 ed6 31.h4 d5! 32.Nd5 Nd5 33.Rd5 f5 34.Rd4 Bd3 35.Rb4 a5 36.Ra4 Bc3 37.Bf1 Bf1 38.Kf1 Bg7 39.Ke2 Rc5 40.f3 ef3 41.Kf3 Bf8 42.g4 Rc3 43.Kf4 Ra3 44.Ra3–+ Ba3 45.gf5 gf5 46.Kf5 Bb4 47.h5 Kg7 48.Kg5 h6 49.Kf5 a4 0–1. linakip – radektcz, kurnik, 2011.

7.Bg2 c5 8.a3 Rb8 9.0-0 a6 10.c3 b5 11.c4 Bb7 12.Qc2 Rc8 13.Qb3 Qb6 14.Rfc1 cb4 15.ab4 Rb8 16.Bc3 Rfc8 17.Qa3 Ng4 18.Bg7 Qf2 19.Kh1 Kg7 20.Qc3 e5 21.Ne4 Be4 22.de4 Ne3 23.Ra3?? Qg2# 0–1. linakip – taszer (1645), kurnik, 2012.

7.Bg2 c6 8.0-0 e5 9.Re1 Qc7 10.Qc1 Re8 11.a3 Nf8 12.c4 Ne6 13.Nb3 Ng4 14.Qc2 a5 15.Bc3 a4 16.Nbd2 Nd4 17.Nd4 ed4 18.Bb2 c5 19.b5 Nf6 20.Nf3 Bg4 21.Bc1 b6 22.Bg5 Qd7 23.Qd2 Bh3 24.Bh6 Bg2 25.Kg2 Bh8 26.Bg5 Qg4 27.h3 Qd7 28.Rh1 h5 29.Rae1 Re6 30.Bf4 Rae8 31.Ng5 R6e7 32.Nf3 Re6 33.Ng5 R6e7 34.e3 Nh7 35.e4 Ng5 36.Bg5 f6 37.Bh6 Qe6 38.h4 Qf7 39.Qc1 Re6 40.Qc2 Qa7 41.Bf4 Bg7 42.Qd2 Kh7 43.f3 Qb7 44.Qc2 Qa8 45.Bd2 f5 46.Qd1 fe4 47.fe4 Rf8 48.Bf4 Ref6 49.Ref1 Rf4 50.Rf4 Rf4 51.gf4 1–0. linakip – regue96, kurnik, 2011.

7.Bg2 e6 8.0-0 d5 9.a3 b6 10.c4 Bb7 11.Qb3 dc4 12.Nc4 Bd5 13.Qc2 c5 14.b5 Bc4 15.dc4 Rb8 16.a4 Ng4 17.Bg7 Kg7 18.Qc3 f6 19.a5 Nge5 20.ab6 ab6 21.Ra7 Nf3 22.Bf3 Kg8 23.Bc6 Ne5+= 24.Qc2 f5 25.Rd1 Qf6 26.Rdd7 Rf7 27.Rf7 Nf7 28.Qd3 Ne5 29.Qd6 Nc6 30.Qc6 Qf8?? 31.Qe6 Kh8 32.Qe5 Kg8 33.Qd5 Kh8+– 34.Rf7 Qg8?? 35.Qe5 Qg7 36.Qg7# 1–0. linakip – mekinjar, kurnik, 2012.

6.g3 e5

7.Qc1 c6 8.Bg2 Qb6 9.a3 Ng4 10.0-0 Nd7 11.c4 a5 12.Bc3 ab4 13.ab4 Ra1 14.Qa1 Ngf6 15.e4 c5 16.b5 Qc7 17.Ba5 b6 18.Bc3 Bb7 19.Qb2 Ra8 20.Ra1 Qb8 21.Nb3 Ne8 22.Nfd2 Bh6 23.Bh3 Nf8 24.Nf3 Ne6 25.Be6 fe6 26.Bd2 Ra1 27.Qa1 Bg7 28.Ng5 Bc8 29.Bc1 h6 30.Nf3 Kh7 31.Qb2 Qa8 32.Bd2 Qa4 33.Nc1 Qd1 34.Kg2 Bb7 35.Qc3 d5 36.ed5 e4 37.d4 ef3 38.Kh3 Bd4 39.Be3 Bc3 (39...Bc3 40.Bf4 Qh1 41.Ne2 Qg2 42.Kh4 Qh2 43.Kg4 Qh5#) 0–1. linakip – maniankaq1, kurnik, 2012.

7.Qc1 Bg4 8.Bg2 Qd7 9.0-0 Bh3 10.a3 Bg2 11.Kg2 Nc6 12.e4 a5 13.b5 Na7 14.a4 b6 15.c4 c6 16.Qc2 cb5 17.ab5 Nc8 18.Qa4 Ne7 19.Bc1 Ne8 20.Nb3 f5 21.Nfd2 f4 22.Nf3 fg3 23.hg3 Nf6 24.Be3 Qc7 25.Rac1 Ng4 26.Bg5 Nc8 27.Qa2 Bf6 28.Qe2 Bg5 29.Ng5 Qf7?? 30.Qg4 (30.Qg4 h5 31.Qh4+–) 1–0. linakip – ryszardp33, kurnik, 2011.

7.c4 Nc6 8.b5 Ne7 9.Bg2 Nd7 10.Qc2 f5 11.0-0 Nf6 12.c5 h6 13.Rfc1 Rb8 14.Qa4 a6 15.cd6 cd6 16.Ba3 (16.Qb3!? Kh7 17.ba6+/-) 16...Be6 17.Nc4 Ne8 18.Rab1 (18.ba6? b5 19.Qd1 bc4 20.dc4 Qa5 21.Bd6 Rd8–+ (21...Nd6?! 22.Qd6 Kf7 23.c5-/+)) 18...Rf7 (better is 18...e4!? 19.Nfd2 d5=) 19.ba6+/- ba6 20.Rb8 (worse is 20.Qa6 Ra8 21.Qa8 Qa8 22.Nfe5 Qa6 23.Nf7 Bc4 24.Nd6 Ba2+=) 20...Qb8 21.Qa6 Bc4 22.Qc4 Bf8 23.Nd2 Kg7 24.Rb1 Qa7 25.Qb3 Ng8? 26.Bb2 Ngf6 27.a4 Rc7 28.Nc4 Nd7 29.a5 Nc5 30.Qb6 Be7 31.Ra1 Kh7 32.d4 Nd7 33.Qa7 Ra7 34.de5 de5 35.Ne5 Ne5 36.Be5 Bb4 37.a6 Bc5 38.Bb7 Nd6 39.Rb1 Kg8 40.Rc1 Nb7 41.ab7 Bf2 42.Kf2 Rb7 43.Rc8 Kf7 44.Rc7 Rc7 45.Bc7 Ke6 46.Kf3 Kd5 47.Bf4 h5 48.Bb8 Kd4 49.Kf4 Kc3 50.Kg5 Kd2 51.Kg6 Ke2 52.Kh5 Kf3 53.Kg5 Kg2 54.h4 f4 55.Bf4 Kh3 56.h5 Kg2 57.h6 (57.h6 Kf3 58.h7 Ke4 59.g4 Kd5 60.h8Q Kc4 61.Bd2 Kd5 62.Qg8 Kc5 63.Be3 Kd6 64.Kf5 Kc6 65.Qe8 Kb7 66.Qd7 Kb8 67.g5 Ka8 68.Qc8#) 1–0. wictorio (1890) – vuirweirv (1865), kurnik, 2012.

7.c4 Nc6 8.b5 Ne7 9.Bg2 Bg4 10.0-0 Qd7 11.Re1 Bh3 12.Bh1 h6 13.Qc2 Rac8 14.Rab1 Kh7 15.Qa4 a6 16.Rec1 ab5 17.cb5 Nh5 18.Nc4 f5 19.b6?? (19.Nfd2!? Ra8 20.Qb3+=) 19...c6 (better is 19...Qa4 20.Nh4 e4–+) 20.Ba3 f4?? (better is 20...e4 21.Nh4 d5+=) 21.Nd6 Nd5? 22.Nc8+– Rc8 23.Bb2 Qf5? 24.Qe4 Qg4 25.Be5 Re8 26.d4 Ndf6 27.Qd3 fg3 28.Bg3 Ng3 29.hg3+– Ne4 30.Ne5 Be5 31.Qe4 Bd4? 32.Qg4 Bg4 33.Bf3 Bf3 34.ef3 Re2 35.Rf1 Ra2 36.f4 h5 37.Kg2 c5?? 38.Kf3?? Kh6? 39.g4 Ra3 40.Ke4 h4 41.Rbd1 Ra4 42.Kd5 Rb4 43.Rd2 Rb6 44.Rh1 1–0. wictorio (1805) – zase (1630), kurnik, 2012.

7.Bg2 a5 8.a3 Nc6 9.b5 Ne7 10.0-0 Rb8 11.c4 b6 12.d4 e4 13.Ng5 e3 14.fe3 Nf5 15.Rf3 Ng4 16.Nf1 Qg5 17.e4 Nfe3 18.Qc1 Bh6 19.h3 Nf1 20.Qg5 Bg5 21.Raf1 Ne3 22.R1f2 Nc4 0–1. grajaro (1810) – elokiller (1775), kurnik, 2012.

7.Bg2 a5 8.a3 Bg4 9.0-0 c6 10.c4 ab4 11.ab4 Ra1 12.Qa1 Na6 13.Bc3 Re8 14.Qa4 Qd7 15.Ra1 Bh3 16.Bh1 Ng4 17.Qa5 Nc7 18.Qb6 Ne6 19.Ra7 Nd8 20.Ng5 Qf5 21.Nh3 Qh5 22.Bg2 Nf6 23.Ra8 Nd7 24.Qc7 1–0. grajaro (1895) – kadz55 (1715), kurnik, 2012.

7.Bg2 a6 8.0-0 Nc6 9.a3 Bd7 10.Nb3 Ne8 11.c4 f5 12.b5 ab5 13.cb5 Na5 14.Na5 Ra5 15.a4 Nf6 16.Qd2 Ra8 17.Rfc1 c6 18.bc6 Bc6 19.Ng5 Qe8 (worse is 19...Ra4 20.Ra4 Ba4 21.Ne6+/- (21.Bb7?! Qd7 22.Qb4 h6=)) 20.Qc3 h6 (20...Ra4?? 21.Bc6 Qc6 22.Qb3 Qd5 23.Qa4+–; 20...Ba4 21.Qc4 Kh8 22.Ne6+/- (22.Bb7?! Rb8 23.Qc7 h6 24.Ra4 Qa4 25.Nf7 Kh7 26.Nd6 Nd5+=)) 21.Nf3 Ra4 22.Nd2 Ra1 23.Ra1 Bg2 24.Kg2 Qc6 25.Qc6 bc6 26.Rc1 Rc8 27.Nc4 Ne8 28.f4 e4 29.Bg7 Kg7 30.de4 fe4 31.Rd1 d5 32.Ne5 Nd6 33.Rc1 c5 34.Kf2 Nf7 35.Nd7 c4 36.Ke3 Nd6 37.Kd4 Nf5 38.Kd5 e3 39.Ne5 c3 40.Ke4 c2 41.Kd3 Nd6 42.Ke3 Nf5 43.Kd3 Rd8 44.Kc2 Ne3 45.Kb3 Ng4 46.h3 Ne3 47.Rc3 Nd5 48.Rd3 Rb8 49.Kc4 Ne7 50.h4 Nf5 51.Kd5 Rd8 52.Ke4 Re8 53.Kf3 Kg8 54.e4 Ne7 55.g4 Kg7 56.g5 hg5 57.hg5 Ra8 58.Rd6 Ra3 59.Kg4 Ra1 60.Nf3 Rf1 61.Nh2 Rg1 62.Kf3 Rh1 63.Nf1 Rf1 64.Ke3 Re1 65.Kf2 Re4 66.Kf3 Re1 67.Kf2 Re4 68.Kf3 Re1 69.Rd7 Rf1 70.Kg3 Kf7 71.Rd4 Rg1 72.Kf2 Rh1 73.Kg2 Re1 74.Kf2 Nf5 75.Rd7 Ke6 76.Rd2 Rc1 77.Re2 (77.Re2 Kd5 78.Re5 Kd4 79.Re8–+). linakip – newpaw (1860), kurnik, 2012.

7.Bg2 a6 8.Qc1 Nc6 9.a3 Bd7 10.0-0 Re8 11.Nb3 e4 12.Ne1 ed3 13.cd3 Rb8 14.Qc2 Ne5 15.Be5 de5 16.Nc5 c6 17.Rd1 Qc8 18.d4 ed4 19.Qd3 Bh3 20.Nf3 Bg2 21.Kg2 Nd5 22.Nd4 Bd4 23.Qd4 b6 24.Ne4 Qe6 25.f3 f5 26.Ng5 Ne3 27.Kf2 Qe5 28.Qe5 Re5 29.Rd6 Nf1 30.Kf1 Rc8 31.Kf2 a5 32.ba5 Ra5 33.Rd3 c5 34.Ne6 c4 35.Rc3 b5 36.Nd4 Rca8 37.Nc2 Kf7 38.Ke3 Ra4 39.Kd4 Ke6 40.Kc5 R4a5 41.Kb4 Kd6 42.Re3 Ra4 43.Kc3 Ra3 44.Na3 Ra3 45.Kd4 Re3 46.Ke3 Kd5 47.Kd2 Kd4 48.e3 Kc5 49.Kc3 b4 50.Kc2 b3 51.Kc3 Kd5 52.h3 Kc5 53.g4 Kd5 54.gf5 gf5 55.h4 h5 56.e4 fe4 57.f4 e3 58.f5 Ke5 59.Kc4 b2 60.Kd3 b1Q 61.Ke3 Qf5 62.Ke2 Qg4 63.Kd3–+ Qh4 64.Kc3 Ke4 65.Kb3 Qg3 66.Kb4 h4 67.Kc5 h3 68.Kc6 ½–½. linakip – popissldwon, kurnik, 2012.

7.Bg2 c6 8.0-0 a6 9.a3 Be6 10.Qc1 h6 11.e4 Kh7 12.c4 Nbd7 13.Qc2 Nh5 14.Nb3 f5 15.Na5 Qc7 16.Nd2 g5 17.Bc1 f4 18.Qd1 Nhf6 19.Nf3 g4 20.Nh4 f3 21.Bh1 Nh5 22.Nf5 Bf6 23.Qd2 Bg5 24.Qd1 Bf5 25.Bg5 hg5 26.ef5 Ng7 27.Re1 Nf5 28.Qd2 Kg6 29.h3 gh3 30.Bf3-/+. giorgo – 1ominut, kurnik, 2012.

7.Bg2 Nc6 8.a3 b6 9.Nb3 Be6 10.c4 Ne7 11.0-0 Rc8 12.Rc1 e4 13.Nfd2 ed3 14.e3 d5 15.c5 Ne4 16.Nf3?? (better is 16.Bg7 Kg7 17.Ne4 de4 18.Be4 bc5 19.Rc5+–) 16...Bb2–+ 17.Rb1 Bg7 18.Qd3 Nc6 19.Rbd1 d4! 20.Qe4 Bb3 21.Rb1 de3 22.Qe3 Bc4 23.Rfc1 Be6 24.Rd1 Qe8 25.Ng5 Ba2 26.Rbc1 Qe3 27.fe3 Bb3 28.Rd3 Ne5 29.Rb3 Ng4 30.e4 Bh6 31.Nf3?? Bc1–+ 32.Rc3 Be3 33.Kf1 Bh6 34.h3 Ne3 35.Ke2 Ng2 36.Ne5 Rce8 37.Kf3 Re5 38.Kg2 Re4 39.Kf3 Re1 40.g4 f5 41.Rd3 fg4 42.Kg4 Rg1 43.Kh4 Bg5# 0–1. linakip – eminbujupi, kurnik, 2011.

7.Bg2 Nc6 8.a3 Bd7 9.Qc1 Rb8 10.e4 a6 11.0-0 Nd4 12.Nd4 ed4 13.Bd4 Ne4 14.Bg7 (14.Be4?! Bd4 15.c3 Bg7=) 14...Nd2 15.Qd2 Kg7 16.Qc3 Kg8 17.Rfe1 c6 18.d4 d5 19.Qd3 Bf5 20.Qd2 Re8 21.c3 Qd7 22.Rac1 b5 23.Re3 Qc7 24.Rce1 Re3 25.Re3 a5 26.Qe1 ab4 27.Re8 Kg7 28.ab4 Re8 29.Qe8 Qd6 30.Qe3 h5 31.h4 Be6 32.Kh2 Qd7 33.f3 Qc8 34.Qe5 Kg8 35.Qe3 Qd7 36.Bf1 Qc8 37.Bd3 Kg7 38.Be2 Qd7 39.f4 Bg4 40.Bf3 Bf3 41.Qf3 Qf5 42.Qe3 Qc2 43.Kh3 Qf5 44.Kh2 Qc2 45.Kh3 Qf5 46.Kg2 Qc2 47.Kg1 Qf5 48.Kf2 Qc2 49.Kf3 Qd1 50.Kg2 Qc2 51.Kg1 Qd1 52.Kh2 Qc2 ½–½. linakip – trudics, kurnik, 2011.

7.Bg2 Nc6 8.a3 Bg4 9.Nb3 a6 10.0-0 Nd7 11.c4 f5 12.Qc2 f4 13.b5 ab5 14.cb5 Ne7 15.a4 Bh6 16.Qc4 Kh8 17.h3 Bf3 18.ef3 fg3 19.fg3 Nb6 20.Qc2 Be3 21.Kh2 Nf5 22.Bc1 Qg5 23.g4?? Qf4 24.Kh1 Ng3 25.Kh2 Nf1 26.Kh1 Qh2# 0–1. linakip – fccc, kurnik, 2011.

7.Bg2 Nc6 8.b5 Ne7 9.0-0 Nd7 10.c4 f5 11.Qc2 h6 12.Nb3 g5 13.c5 Ng6 14.Nfd2 Nf6+= 15.Nc4 h5 16.Nba5+/- Rb8 17.Rac1 h4 18.Qb3 Kh7 19.b6 ab6= 20.cb6 c5 21.Ne3 f4 22.Nd5 g4 23.Nf6 Qf6 24.Be4 f3 25.Rc2 Bh6 26.Qd5 hg3 27.hg3 Bg7 28.Nc4 Be6?? 29.Qd6+– Rbd8 30.Qe5 Qe5 31.Ne5 Be5 32.Be5 Bf5 33.Bc7 Rd7? 34.ef3 gf3 35.Rc5 Be4 36.de4 Ra8 37.Rc3 Rf7 38.a3 Re8 39.Re1 Nf8 40.Ree3 Rd7 41.Rf3 Ne6 42.Rfd3 Rf7 43.f4 1–0. Karbowiak,Adam (2205) – Januszewski,Piotr (1845), DMR KPZSzach, 2009.

7.Bg2 Bd7 8.c4 a6 9.0-0 Bc6 10.Qc2 Re8 11.e4 Nbd7 12.a4 Nf8 13.d4 ed4 14.Nd4 Bd7 15.Rfe1 c5 16.bc5 dc5 17.N4b3 Qc7 18.f4 Rad8 19.Be5 Re5 20.fe5 Qe5 (20...Ng4 21.a5=) 21.a5 Ne6 22.Nf3 Qc7 23.Rad1 Ba4 24.Rd8 Qd8 (24...Nd8 25.Qa2 Bb3 26.Qb3 Qa5 27.e5=) 25.Qa2 Qd7 26.Qb1 Qc7 27.Qd3 Qd7 28.Qb1 Qc7 29.Nbd2 Nd7 (worse is 29...Qa5 30.Qb7 Bh6 31.Nf1+/-) 30.e5 Bc6 (30...Ne5!? 31.Ne5 Be5 32.Qb7 Qb7 33.Bb7 Bc3=) 31.Qa1+= Bh6 32.Ne4 Be4 33.Re4 Nb8 34.Re2 Nc6 35.Ra2 Bg7 36.Qc3 Ne5 37.Ne5 Be5 38.Qb3 Nd8 39.Bd5 Nc6 40.Qb6 Qb6 41.ab6 Nb4 42.Rd2 Bd4 43.Rd4 cd4 44.Bb7 a5 45.c5 d3?? 46.Kf2?? d2+/- 47.Ke2 a4? 48.c6 Nd5+= 49.Kd2 Nb6 50.c7 a3 51.Kc3 Kg7 52.Kb3 Kf6 53.Ka3 Ke5 54.Kb4 Kd4 55.Kb5 Nc4 56.Kc6 Ne5 57.Kd6 Nc4 58.Ke7 Nb6 59.Kf7 g5 60.Kf6 1–0. Wuesten,Christian (1825) – Kasraei,Amir Reza, Duisburg Grossenbaum op, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.d3 d6 6.Nbd2 e5)

7.Bg2 Be6 8.0-0 c6 9.a3 Nbd7 10.Ng5 Rc8 11.Ne6 fe6 12.c4 d5 13.c5 Qe7 14.Qb3 e4 (better is 14...b6!?=) 15.de4+/- de4 16.e3 Kh8 17.Nc4 Ng4 18.Bg7 Kg7 19.Nd6 Rc7 20.Bh3 Nge5 21.Qe6 Qe6 22.Be6 Nf3 23.Kg2 Nde5 24.Rad1 Nd3 25.Bg4 Nfe5? 26.Be2+– Kf6?? 27.Bd3 Nd3 28.Ne4 Ke5 29.Nd6 Nb2 30.Rd2 Na4 31.Rc2 b6 32.Nc4 Kd5 33.Rd1 Ke6 34.Rd6 Ke7 35.Ne5 bc5 36.bc5 Rf5 37.f4 g5 38.Kf3 h5 39.Ke4 Rf6 40.Rf6 Kf6 41.Nf3 g4 42.Nh4 Re7? 43.Kd3 1–0. giorgo – 49vistula, kurnik, 2012.

7.Bg2 Re8 8.0-0 Nc6 9.a3 a6 10.Qc1 Bf5 11.c4 d5 12.c5 e4 13.Nh4 Be6 14.de4 de4 15.Ne4 Ne4 16.Be4 Bb2 17.Qb2 Bh3 18.Bg2 Bg2 19.Ng2 Ne5 20.Qc3 Qf6 21.Qd4?? Nf3!–+ 22.ef3 Qd4 23.f4 Re2 24.Rad1 Qf6 25.Ne3 Ra2 26.Rd3 Rd8 27.Rfd1 Rd3 28.Rd3 Ra1 29.Kg2 Qc6 30.Kh3 h5 31.Nd5 Qe6 32.Kg2 Qe3 33.Re3 1–0. linakip – ppepelegall, kurnik, 2011.

7.Bg2 Bg4 8.0-0 Qd7 9.a3 Bh3 10.c4 Bg2 11.Kg2 a5 12.b5 c6 13.a4 cb5 14.ab5 b6 15.e4 Ne8 16.Rh1 f5 17.Qe1 f4 18.Nf1 g5 19.Ng5 Qg4 20.Nf3 fg3 21.hg3 Qf3 22.Kg1 Nf6 23.Nh2 Qd3 24.Qc3 Qe4 25.Re1 Qb7 26.Nf3 Nbd7 27.Ng5 Nc5 28.Bc1 Ng4 29.Rh4 Nf2 30.Be3 Nfd3 31.Re2 h6 32.Nh3 Qf7 33.Kg2 Qf3 34.Kh2 Qe2 35.Kh1 Rf1 (35...Rf1 36.Bg1 Nf2 37.Nf2 Qf2 38.Qe5 Qg1#) 0–1. linakip – ryszardp33, kurnik, 2011.

7.Bg2 Nh5 8.Rb1 f5 9.0-0 g5 10.h3 (10.Ne1 Qe7=) 10...g4 11.hg4 fg4 12.Nh4 Bf6 13.d4 Bh4 14.gh4 Nf4 15.de5 Qh4 16.Ne4 Bf5 (worse is 16...Ng2 17.Qd5 Rf7 18.Kg2+/-) 17.Ng3 Be6 (17...Ng2? 18.Qd5 (18.Kg2?! Be6+/-) 18...Rf7 A) 19.Qg2?! Nc6= (19...Bc2?? 20.Qb7 Bb1 21.Qa8+–); B) 19.Kg2?! B1) 19...Bc2 20.e6 (20.Qb7?! Ba4 21.b5 Bb5 22.Qb5 c6+–) 20...Nc6 21.ef7 Kf8 22.e4 Qh3 23.Kg1 Bb1 24.Nf5+–; B2) 19...Bd7 20.e6 Bc6 21.ef7 Kf8 22.Bg7 Kg7 23.Nf5 Kf8 24.Nh4 Bd5 25.f3 Ba2+=; C) 19.Nf5+–) 18.ed6 (18.Bb7 Nh3 19.Kg2 de5 20.Be5 Nd7 21.Bc7 Rae8+–) 18...Nc6 (18...cd6!? 19.Qd4 Qh6+=) 19.b5+/- Rad8 20.bc6 Rd6 21.Qe1 Rc6 22.Qd2 Rc4 23.Qe3 Rc2 24.Rfc1 Rc1 25.Rc1 c6 26.Rd1 Qh6 27.Rd6 Ng2?? 28.Qh6 (28.Qh6 Rf7 29.Rd8 Rf8 30.Qf8#; 28.Qe6?! Qe6 29.Re6 Nf4+=; 28.Re6?! Qe3 29.fe3 Nh4+/-) 1–0. Jadoul – Reeh, Eupen, 1987.

7.Bg2 h6 8.0-0 Kh7 9.a3 c6 10.Qc1 Bg4 11.c4 a6 12.Re1 Nbd7 13.e4 Nb6 14.a4 Bd7 15.a5 Nc8 16.d4 Bg4 17.d5 cd5 18.cd5 Qd7 19.Nc4 Bh3 20.Qe3 Bg2 21.Kg2 Ng4 22.Qe2 Na7 23.h3 Nf6 24.Nb6 Qb5 25.Qb5 Nb5 26.Na8 Ra8 27.Rac1 Rf8 28.Rc2 h5 29.Rec1 Ne4 30.Rc8 Nd4 31.Bd4 ed4 32.Rf8 Bf8 33.Nd4 Bg7 34.Nf3 Nf6 35.Rc7 Kg8 36.Rb7 Nd5 37.Rb8 Kh7 38.Ng5 Kh6 39.Nf7 Kh7 40.Nd6 Nb4 41.Rb4 Bc3 42.Ra4 Kh6 43.Nb7 g5 44.Nc5 g4 45.h4 Kg6 46.Na6 Bd4 47.Nb4 Ba7 48.Nc6 Bc5 49.a6 Kf5 50.Ra5 Ke6 51.Rc5 Kd6 52.Rc4 Kd5 53.Rc2 Ke4 54.a7 Kd3 55.Rc1 Kd2 56.Rc5 Kd3 57.a8Q (57.a8Q Ke2 58.Qd8 Ke1 59.Re5#) 1–0. linakip – 60piter, kurnik, 2012.

5.Nbd2 e6

6.g3 b6 7.a3 Bb7 8.Bg2 Nd5 9.Qc1 Bb2 10.Qb2 d6 11.c4 Ne7 12.0-0 c5 13.b5 d5 14.a4 dc4 15.Nc4 Nd5 16.Rfd1 f5 17.d4 Qf6 18.Nfe5 f4 19.Nd6 Bc8? (better is 19...fg3!? 20.Kh1 gf2 21.Nb7 Ne3 22.dc5 Nd7+=) 20.Nc8 (20.g4!? c4+–) 20...Rc8 21.Ng4 Qg5 22.Bd5?? ed5= 23.Ne5 fg3 24.hg3 cd4? 25.Qd4+– Qf6?? 26.Nf3 Qd4+/- 27.Rd4 Rd8 28.Rad1 a6 29.Ne5 ab5 30.ab5 Ra5 31.Rd5 Rd5 32.Rd5 Kg7 33.Kg2 Kf6 34.f4 Na6 35.Nd7 Ke6 36.Re5 Kd7= 37.Kf3?? Nc5–+ 38.e3 Rb5 39.g4 Rb2 40.Rd5 Kc6 41.Rd8 b5 42.Rh8 b4 43.Rh7 b3 44.Rh8 Rc2 45.Rc8 Kd5 46.Rd8 Kc4 47.Rb8 b2 48.g5 Kc3 49.e4 Nb3 50.Rc8 Kd3 51.Rd8 Kc3 52.Rc8–+ Kd2 53.Rd8 Kc1 54.Rd6 b1Q 55.Rg6 Rc3 56.Kg4 Qd3 57.Kf5 Qd7 58.Kf6 Rc6 59.Ke5 Rg6 60.f5 Qe7 61.Kf4 Qg5 62.Ke5 (62.Ke5 Qg3 63.Kd5 Qd3 64.Ke5 Qd6#). giorgo – youareokoata8, kurnik, 2012.

6.g3 b6 7.Bg2 Bb7 8.0-0 d5 9.a3 Nbd7 10.Qc1 c5 11.c3 Rc8 12.Qd1 cb4 13.cb4 h5 14.Qb3 Ng4 15.Bg7 Kg7 16.Qb2 Qf6 17.Qf6 Ngf6 18.Nb3 a6 19.Nbd4 Nh7 20.Rfc1 Ndf6 21.Nd2 Rc1 22.Rc1 Rc8 23.Rc8 Bc8 24.Nc6 Bb7 25.Nd8 Ba8 26.Nb3 Kf8 27.e4 Ke7 28.Ne6 fe6 29.ed5 Bd5 30.Nd4 Bg2 31.Kg2 e5 32.Nb3 Kd6 33.Kf3 g5 34.h3 g4 35.hg4 Ng4 36.Nd2 Nhf6 37.Nc4 Kc6 38.Ne3 Ne3 39.fe3 Ng4 40.a4 b5 41.a5 Kd5 42.Ke2 e4 43.d4 0–1. linakip – ira102, kurnik, 2011.

6.g3 d5 7.Bg2 c6 8.Qc1 b5 9.a3 a6 10.c4 Nbd7 11.0-0 bc4 12.dc4 Bb7 13.c5 a5 14.ba5 Qa5 15.Nb3 Qb5 16.Nfd4 Qa6 17.Re1 Qa7 18.e3 Ne4 19.f3 (better is 19.Be4!? de4 20.Ne2+=) 19...Nec5-/+ 20.Nc5 Nc5 21.Qc2 Na4 22.Nc6+= Qb6 23.Bg7 Kg7 24.Nd4 Kg8 25.Reb1 Qa6 26.Qb3 Rab8 27.Bf1 Qa7 28.Nb5 Qa5 29.Nd6 Nc5 30.Qb4 Qb4? 31.ab4+– Nd7 32.Bb5 Nf6 33.Nb7 Rb7 34.Bc6 Rb6 35.b5 Rfb8 36.Rc1 e5 37.Ra6 e4 38.f4 Ng4 39.Rc3 Ra6= 40.ba6 Rb6?? 41.Bb7 (41.Bb7 Rb1 42.Kg2 Rb2 43.Kf1 Nh2 44.Ke1+=; 41.Bd5?! Ra6 42.h3 Nf6=) 1–0. giorgo – fahro75, kurnik, 2012.

6.g3 Qe7 7.a3 Nc6 8.Qc1 d5 9.Bg2 Nd8 10.0-0 b6 11.c4 c6 12.Re1 Ba6 13.Ne5 Rc8 14.b5 cb5 15.cb5 Rc1 16.Rec1 Bb5 17.Bd4 Nd7 18.Ndf3 Ne5 19.Be5 Be5 20.Ne5 Qd6 21.Nf3 Nc6 22.a4 Ba6 23.Rc3 Ne5 24.Ne5 Qe5 25.Rac1 Qb8 26.Bf1 Rc8 27.Rc8 Bc8 28.e3 Bd7 29.Ra1 Qc7 30.d4 Qc3 31.Bb5 0–1. linakip – araisuf, kurnik, 2011.

5.Nbd2 Nh5

6.Qc1 Bb2 7.Qb2 b6 8.g3 Bb7 9.Bg2 Na6 10.a3 c5 11.b5 Nc7 12.a4 Rb8 13.0-0 a6 14.c4 ab5 15.cb5 d5 16.Rfc1 f6 17.e4 e5 18.ed5 Nd5 19.Nc4 Ne7 20.Rd1 Nf5 21.a5 ba5 22.Na5 Nd4 23.Nd4 Bg2 24.Ne6 Qd5 25.Qb3 Qf3 26.Ng5 Qd5 27.Qd5 Bd5 28.Ne4 Rb5 29.Nc3 Bf3 30.Rdc1 Rb6 31.Ne4 Be4 32.de4 Rc8 33.Nc4 Rb4 34.Ra6 Rc7 35.Ra8 Kg7 36.Kg2 f5 37.ef5 gf5 38.Ne5 Nf6 39.Ra5 c4 40.h3 c3 41.Ra3 Ne4 42.Nd3 Rbc4 43.Rc2 Kf6 44.f3 Nc5 45.Nc5 R7c5 46.Ra6 Rc6 47.Ra5 h5 48.h4 1–0. linakip – romano310, kurnik, 2012.

6.Qc1 Bb2 7.Qb2 e6 8.g3 Qf6 9.c3 b6 10.Ne4 Qg7 11.Bg2 Bb7 12.Ned2 Na6 13.a3 c5 14.b5 Nc7 15.0-0 Nd5 16.Rfc1 Rab8 17.Qb3 Ne7 18.a4 Bd5 19.c4 Bf3 20.Nf3 d5 21.Nd2 d4 22.a5 Nf6 23.Nf3 Nd7 24.Qa4 e5 25.Nd2 f5 26.a6 Nf6 27.Qd1 Rfe8 28.Qf1 e4 29.de4 fe4 30.Ne4 Ne4 31.Be4 Qf6 32.Qg2 Nf5 33.Bd5 Kg7 34.Re1 Ne7 35.Bb7 Nf5 36.Rad1 h5 37.h4 g5 38.hg5 Qg5 39.Bf3 h4 40.Be4?? hg3 41.fg3?? Qg3 42.Bf3?? Qg2-/+ 43.Bg2 Ne3 44.Bf3 Nd1–+ 45.Rd1 Rbd8 46.Rd3 Re3 47.Kf2 Rd3 48.ed3 Re8 49.Be4 Rf8 50.Kg3 Rf6 51.Kg4 Kh6 52.Kh4 Rf4 53.Kg3 Kg5 54.Bh7? Rg4 55.Kf3 Rf4 56.Kg3 Rh4 57.Be4 (57.Be4 Re4 58.de4–+). giorgo – hiszpania1, kurnik, 2012.

5.e3 a5

6.ba5 Ra5 7.Be2 c6 8.0-0 b5 9.Nbd2 d5 10.c4 bc4 11.dc4 Bb7 12.Nb3 Ra8 13.cd5 cd5 14.a4 Ba6 15.Ba6 Na6 16.Nfd4 Qb6 17.Ba3 Rfe8 18.Rb1 Qa7 19.Qd2 Ne4 20.Qd3 Rac8 21.Rfc1 Qa8 22.f3 Nf6 23.Nb5 Rc1 24.Rc1 Rc8 25.Rc8 Qc8 26.N5d4 e6 27.h3 Nd7 28.Nb5 Ndc5 29.Bc5 Nc5 30.Qc2 Bf8 31.Nc5 Qc5 32.Qc5 Bc5 33.a5 Be3 34.Kf1 Kf8 35.a6 Ke7 36.a7 Ba7 37.Na7 Kd6 38.Nb5 Kc5 39.Nc7 Kd6 40.Na6 e5 41.Ke2 f5 42.Kd3 Kc6 43.Nb4 Kc5= 44.Nc2 e4 45.fe4 de4 46.Ke3 Kc4 47.Nd4 Kd5 48.g4?? Ke5 49.Ne2+/- h5? 50.gh5+– gh5 51.h4 1–0. exp2005 – mietz, kurnik, 2011.

6.b5 a4 7.a3 d6 8.Be2 Nbd7 9.0-0 e5 10.c4 Nc5 11.Nc3 Bf5 12.e4 Be6 13.Nd5 Nh5 14.g3 c6 15.Nc3 h6 16.Nh4 Nf4 17.Ng2 Ne2 18.Qe2 Nb3 19.Rab1 Nd4 20.Qe3 f5 21.f4 Qd7 22.fe5 de5 23.bc6 bc6 24.ef5 gf5 25.Ne2 c5 26.Nd4 cd4 27.Qf3 Rab8 28.Ba1 Rb3 29.Rb3 ab3 30.Rb1 Rb8 31.Bb2 Qf7 32.Qc6 e4 33.de4 fe4-/+ 34.Qe4 Bf5 35.Qf4 Re8 36.Rf1 Rf8 37.Qd6 (37.Qd6 Qc4 38.Nf4+=; worse is 37.Bd4 A) worse is 37...Qc4 38.Bg7 Qf4 39.Rf4 (worse is 39.Nf4 Kg7 40.Rf2 Ra8-/+) 39...Kg7 40.Rb4+=; B) 37...Be4 38.Bg7 Qa7 39.Qe3 Rf1 40.Kf1 Bg2 41.Kf2 Qe3 42.Ke3 Kg7–+) 1–0. bratek55 (1755) – skyhaai (1625), kurnik, 2011.

5.e4 a5

6.b5 d6 7.Be2 (--> 5.e4 d6 6.Be2 a5 7.b5).

5.e4 a6

6.a4 Nc6 7.c3 e5 8.Nbd2 d6 9.Be2 Nh5 10.g3 Bh3 11.Nh4 Qd7 12.Bh5 gh5 13.Qh5 Bg4 14.Qg5 h6 15.Qe3 Ne7 16.h3 Bh5 17.g4 Bg6 18.Nf5 Nf5 19.gf5 Bh7 20.Rg1 Kh8 21.0-0-0 Bf6 22.Qh6 Rg8 23.Rg4 Bg7 24.Qh5 f6 25.Rdg1 Raf8 26.Nf3 Rf7 27.Nh4 Qe8 28.Ng6 1–0. ArgosZgZ – Venancio, lichess.org, 2019.

6.Be2 d6 (--> 5.e4 d6 6.Be2 a6).

5.e4 b6

6.Be2 Bb7 7.0-0 d6 (--> 5.e4 d6 6.Be2 b6 7.0-0 Bb7).

6.Be2 Bb7 7.Nbd2 a5 8.b5 d5=.

6.e5 Nd5

6.e5 Ne8

5.e4 c6

5.e4 Nc6

6.b5 Nb8 7.Nbd2 a6 8.ba6 Ra6 9.Be2 Nc6 10.d4 Ra8 11.e5 Nh5 12.d5 Nb4 13.Bc4 b5 14.Bb3 Bb7 15.Ne4 Nf4 16.0-0 Nbd5 17.g3 Ne6 18.Bd5 Bd5 19.Qd5 c6 20.Qb3 d5 21.Rad1 Qc7 22.Nc5 Nc5 23.Qb4 Ne4 24.Rfe1 Ra2 25.Qb3 Ra4 26.Nd2 Nd2 27.Rd2 Qa5 28.Rde2 e6 29.f4 Rb4 30.Qc3 Rc4 31.Qb3 Ra8 32.Ra1 Ra4 33.Ra4 Qa4 34.Qc3 b4 35.Qc6 Qc6 0–1. Chess4Win (1760) – RyaaChess (1750), lichess.org, 2020.

6.b5 Nb8 7.e5 Nh5=.

6.b5 Nb8 7.g3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d5 11.e5 Ng4 (11...Nfd7 12.d4=) 12.Bg2 Nd7 13.d4 c5 14.0-0 (14.h3 Nh6 15.0-0 Qa5=) 14...cd4 15.Qd4 (15.Bd4!? Nge5 16.Ne5 Ne5 17.Be5 Be5 18.Re1=) 15...Nde5-/+ 16.Ne5 Be5 (16...Ne5?! A) 17.Bd5?? Nf3 18.Bf3 Bd4–+ (18...Qd4?! 19.Bd4 Bd4 20.Rd1=); B) 17.Kh1 Bf6 18.Qd5 (18.Bd5? Ng4 19.Bf7 Kf7 20.Qd8 Rd8 21.Bf6 ef6–+) 18...Qd5 19.Bd5=) 17.Qa4 Ba1 18.Qa1 Bf5 19.Rd1 e6 20.Qa4 (20.c4 Qb6 21.Qd4 Qd4 22.Rd4 Ra8-/+) 20...Qb6 21.Rd2 Rc8 22.h3 Ne5 23.g4-/+ Be4 24.Be4 de4 25.Qe4 Qb5 26.Na3 Qa5 27.Qb7? Qd2?? 28.Qc8= Kg7 29.Nb5? Qd1 30.Kh2-/+ Qf3 31.Qc5= Qf4 32.Kg2 Qe4 33.Kf1 Qh1 34.Ke2 Qf3 35.Kd2 Qf4 36.Kc3 Qf3 37.Qe3 Qc6+= 38.Kb4 Qc4 39.Ka5 Nc6 40.Kb6 Qc2 41.g5 Qc4 42.f4 Ne7 43.Qe5 Kf8 44.Qb8 Qc8 45.Qd6= Qa8 46.Nc7 Qb8 47.Kc5 Qa7 48.Kc4 Qa4+= 49.Kc3 Qc6 50.Qc6 Nc6 51.Kc4 Ke7 52.Kc5 Kd7 53.Ne8 Ke8–+ 54.Kc6 Ke7 55.Kc7? f6 56.gf6 Kf6 57.Kd6 h5 58.h4 Kf5 59.Ke7 Kf4 60.Ke6 Kg4 61.Kf6 Kh4 62.Kg6 Kg4 (62...Kg4 63.Kf6 h4–+) 0–1. Wall,Bill – Shameson,Leon, Mt View, CA, 1987.

6.b5 Nb8 7.g3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d5 11.e5 Ng4 12.Bg2 Nd7 13.d4 c5 14.0-0 cd4 15.Qd4 Nde5 16.Ne5 Be5 17.Qa4 Ba1 18.Qa1 Bf5 19.Rd1 e6 20.Qa4 Qb6 21.Rd2 Rc8 22.h3 Nf2! 23.Rf2 Rc2 (23...Rc2 24.Qf4 Rf2 25.Qf2 Qf2 (25...Bb1?? 26.Qb6 Kg7 27.Qb7+–) 26.Kf2 Bb1–+) 0–1. Shameson,Leon – Wall,Bill, Mt View, CA, 1987.

6.Nc3 Nb4 7.a3 Nc6 8.Nd5-/+.

6.Nc3 d5 7.Rb1 (7.b5!? Nb8 8.Nd5 Nd5 9.Bg7 Kg7 10.ed5 Qd5 11.c4=) 7...Bg4 (7...Nb4 8.e5 Nh5 9.a3-/+) 8.a3 Nd4 9.Be2 Ne2 10.Qe2 d4 11.Nd1 e5 (11...Nh5 12.Bc1=) 12.c3 Bf3 (12...dc3 13.Nc3 Nh5 14.Bc1+=) 13.Qf3= Re8 14.cd4 ed4 15.0-0 Nd7 16.b5 (16.Qg3 c6=) 16...Nc5 17.Rc1 b6 18.Qg4 (better is 18.Qg3!?+=) 18...Nd3–+ 19.Rc2 Nb2 (19...a6 20.ba6 Ra6 21.Rd2 Nb2 22.Nb2 Ra3 23.Rb1–+) 20.Nb2 d3 21.Rd2 Bb2 22.Rb2 Qd4 (22...a6 23.ba6 Ra6 24.Rb3–+) 23.Rd2 (23.Rb4 Qc3-/+) 23...Re4 24.Qf3 (24.Qg3 Rd8 25.Qc7 Re2–+) 24...Rae8 (24...Rd8 25.h3–+) 25.Rd3 (25.Qd3 Qd3 26.Rd3 Ra4-/+) 25...Qe5 (25...Qc4!?-/+) 26.Rd7+= f5 (26...Re7 27.Rd8 Kg7 28.Qd3+=) 27.Qh3 (27.Qb3 Re6=) 27...h5 (better is 27...Re7 28.Qb3 Qe6 29.Rd8 Kf7-/+) 28.f4? (better is 28.Qd3=) 28...Qc5–+ 29.Kh1 Rf4! 30.Qb3 (30.Rf4 Re1) 30...Qc4 31.Qc4 Rc4 32.Rfd1 Rce4 (32...Re5 33.a4–+) 33.Rd8 (33.Kg1!?-/+) 33...Rd8–+ 34.Rd8 Kf7 35.Rd1 (35.g3 Ra4–+) 35...Ra4 36.h3 (36.Rd7 Kf6 37.Rc7 Ra3–+) 36...Ra3 37.Rd7 Ke6 38.Rc7 Kf6 (38...f4 39.h4–+) 39.Kg1 Kg5 40.Rd7 (40.Rc4 f4–+) 40...Ra5 41.Rd5 (41.Kf2 Rb5 42.Ra7 Rb2 43.Kf3 h4–+) 41...Kf4 (41...a6 42.h4 Kh4 43.Rd4 Kg3 44.Rd3 Kg4 45.ba6 Ra6 46.Rd4 Kg3 47.Rd3 Kf4 48.Rb3–+) 42.Kf2 (42.Rd4 Ke3 43.Rb4 Kd3–+) 42...Ra2 (42...a6 43.Rd6 Rb5 44.Rg6 Rb2 45.Ke1–+) 43.Kg1 Kg3 (43...g5!? 44.Rd4 Ke5 45.Rd1–+) 44.Rd3 Kf4 45.Rd6?? (45.Rd5 g5 46.Rd4 Ke5 47.Rd7–+) 45...g5–+ 46.Kh2 Ra5 47.Rh6 (47.Rd4 Ke5 48.Rd7 h4–+) 47...h4 48.Rh7 Rb5 49.Ra7 Rb2 50.Re7 (50.Ra4 Ke5–+) 50...b5 51.Re1 b4 52.Re8 (52.Rf1 Ke4–+) 52...b3 53.Re1 (53.Rb8–+) 53...Rc2 54.Rf1 Ke5 55.Re1 (55.Rf3 b2 56.Re3 Kd4–+) 55...Kf6 (55...Kd4!? 56.Re7–+) 56.Re3 b2 57.Rb3 Ke5 58.Rb5 Kd4 59.Kg1 (59.Rb4 Kc3 60.Rb6 Rc1–+) 59...Rc1 60.Kf2 b1Q 61.Rb1 Rb1 62.Kf3 If White now only could play g4+... 62...Rb3 63.Ke2 g4 64.hg4 fg4 65.Kd2 (65.Ke1 Ke3 66.Kd1 Kd3 67.Kc1 h3 68.g3 h2 69.Kd1 h1Q) 65...Rb2 66.Kc1 Rg2 (66...Rg2 67.Kd1 h3 68.Ke1 h2 69.Kf1 h1Q) 0–1. rimazu – vitorcosta, net–chess.com, 2018.

5.e4 d5

6.ed5 Nd5 7.Bg7 Kg7 8.a3 Bg4 9.c4 Nb6 10.Nc3 Kg8 11.h3 Bf5 12.g4 Be6 13.Qb3 Nc6 14.Be2 Nd4 15.Nd4 Qd4 16.0-0 f5 17.Nb5 Qe5 18.Rae1 Qf6 19.Nc7 fg4 20.Na8 gh3 21.Nc7 Qg5 22.Bg4 Qg4 0–1. Adjailton (1785) – DekGam (1715), lichess.org, 2016.

6.e5 Ne8 7.d4 Bg4 8.Nbd2 e6 9.Bd3 b6 10.0-0 c5 11.bc5 bc5 12.dc5 Qc7 13.Nb3 (13.c4!? Nd7 14.Be2+=) 13...Nc6= 14.h3 Bf3 15.Qf3 Ne5 16.Be5 Be5 17.Rae1 Rb8 18.Qe3 Bg7 19.h4 (19.c4!?=) 19...Nf6 20.Qg3 Qg3 21.fg3 Nd7 22.c4 dc4 23.Bc4 Nc5! 24.Rd1 Nb3 25.ab3 Rbd8 26.Kf2 Bd4 27.Kf3 Rd6 28.g4 Rfd8 29.Rd3 f5 30.gf5 gf5 31.g4 fg4 32.Kg4 Kg7 33.h5 e5 34.Rf5 e4 35.Rd1 Re8 36.Rf7= Kh6 37.Rf4 Rg8?? 38.Kh3 (38.Kh3 Rg5 39.Be2-/+). bratek55 (1625) – aqualiter (1705), kurnik, 2011.

6.e5 Ng4 7.d4 a5 8.b5 c5 9.h3 Nh6 10.Bd3 cd4 11.Bd4 Nd7 12.0-0 Nb6 13.Nbd2 Bf5 14.Nb3 a4 15.Nc5 Qc7 16.Rc1 Rfd8 17.Re1 Nc4 18.Bc4 dc4 19.c3 b6 (19...Rd5 20.b6 Qc6 21.Ne4+=) 20.Ne4 (20.Na4!? Be6 21.Ng5+/-) 20...Be4 21.Re4 Nf5 22.e6 fe6 23.Re6 Rd6 24.Rd6 Qd6 25.Bg7 Kg7 26.Qd6 Nd6 27.Nd4 e5 28.Nc6 Kf6 29.Rb1 Ne4 30.Rc1 Nc5 31.Re1 Nd3 32.Re4+= Re8 33.Rc4 Nf4 34.Kf1 e4? 35.Ra4+– Kg5 36.Nd4 Nd3 37.Ra6 Rf8?? 38.f3 e3?? 39.Ke2 (39.Ke2 Nf4 40.Ke3 Ng2 41.Kf2+–) 1–0. bratek55 (1730) – kapabllanka (1770), kurnik, 2011.

6.e5 Ng4 7.h3 Nh6 8.d4 a5 9.b5 c6 10.a4 c5 11.c3 cd4 12.cd4 Nd7 13.Bd3 Nb6 14.Nbd2 Nf5 15.0-0 e6 16.Qb3 Bd7 17.Rac1 Rc8 18.g4 Ne7 19.Rc8 Nec8 20.Rc1 h5 21.g5 Ne7 22.Ba3 Re8 23.Bd6 Nf5 24.Bf5 gf5 25.Rc7 Bf8 26.Qa3?? Nc4?? 27.Nc4+– dc4 28.Qc5 Bd6 29.Qd6 Bc8 30.Rc4 Qd6 31.ed6 Rd8 32.Ne5 b6 33.Rc6 Bb7 34.Rb6 Bd5 35.Ra6 Bb3 36.Ra5 Rd6 37.Nc6 Bd5 38.Ra6 Bc6 39.Rc6 Rd4 40.a5 Rb4 41.Rc8 Kg7 42.Rb8 f6 43.gf6 Kf6 44.a6 Ra4 45.Kg2 Ke7 46.Rb6 Kd7 47.Rb7 Kc8 48.Kg3 e5?! 49.Re7 h4 50.Kg2 e4 51.Re5 f4 52.Rf5 f3 53.Kh2 Ra2 54.Rf4 Rf2 55.Kg1 Rg2 56.Kh1?? Rb2?? 57.Re4?? Rb5?? 58.Re6?? Rb3 59.Kg1 Rb1 60.Kf2+– Rb3?? 61.Rh6 Rb2 62.Kf3 Rf2 (62...Rf2 63.Kf2 Kc7+–). bratek55 (1665) – sotirovn (1890), kurnik, 2011.

6.e5 Nfd7

7.d4 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 b6 11.Bd3 c5 12.bc5 bc5 13.dc5 Nc5 14.0-0 Bg4 15.Nbd2 Nc6 16.c4 Nd3 17.cd5 Qd5 18.Bc3 Nde5 19.Be5 Ne5 20.Re1 Rd8 21.Re5 Be5 22.Qc2 Bf3 23.Nf3 Qd1 24.Qd1 Rd1 25.Ne1 Re1 0–1. Adjailton (1835) – You_Are_Nothing (2245), lichess.org, 2020.

7.d4 a5 8.b5 c5 9.bc6 Nc6 10.Bd3 e6 11.0-0 f6 12.Re1 fe5 13.Ne5? (better is 13.de5 Qb6 14.Ba3-/+) 13...Nde5–+ 14.de5 Qh4?? (better is 14...Qb6 15.Ba3 Rf2–+) 15.g3 Qh3 16.f4 g5 17.Bf1 (17.fg5 b6=) 17...Qf5 18.Bd3 Qh3 19.Bf1 (better is 19.fg5!? Nb4 20.g6 Nd3 21.Qd3 hg6 22.Qg6=) 19...Qh5?? (better is 19...Qh6 20.fg5 Qg5-/+) 20.Qh5+– (20.Qh5 gf4 21.Ba3+–) 1–0. bratek55 (1680) – kastaldi (1760), kurnik, 2011.

7.d4 Nb6 8.c3 Bg4 9.Nbd2 Bf3 10.Nf3 f6 11.ef6 ef6 12.Be2 Re8 13.0-0 Qe7 14.Re1 c6 15.Bd3 Qd6?? (15...Qf7 16.Re8 Qe8 17.Qc2+=) 16.Qb3 (better is 16.Re8 Bf8 17.Qe2+–) 16...Re1 17.Re1 N8d7 18.a4 Nf8 19.a5 Nbd7 20.g3 b6 21.a6 b5 22.Bc1 h5?? 23.Bf4+– Ne5 24.de5 fe5 25.Ne5 Be5 26.Be5 Qe6 27.f4 d4 28.Qe6 Ne6 29.cd4 Rd8 30.Bg6 Nd4 31.Bh5 Nc2 32.Rd1 Rd1 33.Bd1 Nb4 34.Bf3 Na6 35.Bc6 b4 36.Bb5 Nc5 37.Bc4 Kf8 38.Bd6 Ke8 39.Bc5 1–0. bratek55 (1655) – torreadosss, kurnik, 2011.

7.d4 Nb6 8.Nbd2 Bd7 9.Bd3 a6 10.0-0 Bb5 11.a4 (11.Qe2!=) 11...Ba4 12.Nb3 Bb3 13.cb3 Nc6 14.b5 ab5 15.Bb5 Qd7 16.Qc2 Nb4 17.Bd7 (better is 17.Qc5!? Nc6 18.Rfe1=) 17...Nc2-/+ 18.Rac1 Nb4 (18...Nd7 19.Rc2 Rfc8 20.Rfc1-/+) 19.Bb5 (better is 19.Rc7 Rfb8 20.Bb5=) 19...c6-/+ 20.Be2 Ra2 21.Rb1 e6 22.Rfe1 Rfa8 23.Bc3 Bf8 24.Ra1 Nc2 25.Ra2 Ra2 26.Rc1 Ba3 27.Rb1 Nc8 28.Bd3 Ne7 29.Kf1 h5 30.Ne1 Nb4 31.Be2 Nf5 32.Ra1 Ra1 33.Ba1 b6 34.h3 h4 35.Nd3? c5! 36.Nb4 Bb4 37.dc5 bc5 38.Bd3 Ne7 39.g3 hg3 40.fg3 Nc6 41.Ke2? d4 42.Bc4 Ne5 43.g4 Nc4 44.bc4 Bc3 45.Bc3 dc3 46.Kd3 Kg7 47.Kc3 Kf6 48.h4 Ke5 49.Kd3 Kf4 50.h5 gh5 51.gh5 Kg5 52.h6 Kh6 53.Ke4 f6 54.Kf4 Kg6 55.Kg4 f5 56.Kf4 Kf6 57.Ke3 e5 58.Kf3 Kg5 59.Kg3 e4 (59...e4 60.Kf2 f4 61.Ke2 e3 62.Kf3 Kf5 63.Ke2 Ke4 64.Kf1 f3 65.Kg1 Kd3 66.Kf1 Kd2 67.Kg1 Ke1 68.Kh2 f2 69.Kh3 f1Q 70.Kg4 Qc4 71.Kf5 e2 72.Kf6 Kd2 73.Ke5 e1Q 74.Kd6 Qa6 75.Kc5 Qe3 76.Kd5 Qae6#) 0–1. bratek55 (1705) – welcometo (1765), kurnik, 2012.

7.d4 e6

8.c4 c6 9.c5 b6 10.Bd3 bc5 11.bc5 f6 12.0-0 (better is 12.ef6!? Qf6 13.Bc3=) 12...fe5-/+ 13.Ne5 Ne5 14.de5 Nd7 15.f4 Nc5 16.Ba3? (better is 16.Bd4 Qe7 17.Be2-/+) 16...Qb6 17.Kh1 Re8?? (17...Nd3 18.Bf8 Qd4 19.Nd2 Bf8 20.Qf3–+) 18.Nc3? (better is 18.Bc5 Qc5 19.Nd2-/+) 18...Nd3–+ 19.Qd3 c5?? (19...Ba6 20.Qf3 Qa5 21.Bd6 Bf1 22.Rf1–+) 20.Rab1?? (20.Na4 Ba6 21.Nb6 Bd3 22.Na8 Bf1+=) 20...Qc6?? (better is 20...Ba6 21.Qc2 Bf1 22.Rb6 ab6–+) 21.Qb5= Qb5 22.Nb5 Ba6 23.Bc5 Bb5 24.Rb5 Rec8 25.Ra5 a6 26.Rb1 Rc6 27.Kg1 Rac8 28.Bd6 Bh6 29.g3 g5 30.Ra4 gf4 31.gf4 Kf7 32.Kg2 Kg6 33.Kf3 Kf5 34.Rb7 Rc3 35.Kg2 Bf4?? 36.Rh7?? Rc2 37.Kf1 Rc1 38.Ke2 R8c2 39.Kf3 Rc3 40.Kf2 R1c2 41.Kf1 Rf3 42.Ke1 Rc1 43.Ke2 Re3 44.Kf2 Rc2 45.Kf1 Rf3 46.Ke1 Rh2?? 47.Rh2?? Bh2-/+ 0–1. bratek55 (1630) – agimshala, kurnik, 2011.

8.Bd3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 b6 12.0-0! c5 13.c3 cb4 14.cb4 Ba6 15.b5 Bb7 16.Bc3 f6 17.Bb4 Re8 18.Bd6 fe5 19.de5 Nc5 20.Be2 Ne4 21.Nd4 Nd6 22.ed6 Qd6 23.h4 e5 24.Nf3 e4 25.Ng5 h6 26.Nh3 Bc8 27.Bg4 Bg4 28.Qg4 Qe6 29.Qg3 Be5 30.Qa3 Qg4 31.Qa7 Nd7 32.Qb7 Qe6 33.Rd1 d4 34.Nd2 Nc5 35.Qa7 Bd6 36.Nf1 Qe5 37.Qb6 e3 38.fe3 Na4 39.Qc6 1–0. sacaniev – niepis, kurnik, 2012.

8.Bd3 a5 9.b5 c5 10.bc6 bc6 11.c4 c5 12.cd5 ed5 13.0-0 Nc6 14.Bb5 Bb7 15.Bc6 Bc6 16.Ba3 Qb6 17.dc5 Qc7 (worse is 17...Nc5 18.Qd4 Nd7 19.Bf8 Kf8 20.Qb6 Nb6 21.Na3+/-) 18.Re1 (better is 18.Bb2!?=) 18...Ne5-/+ 19.Ne5 Be5 20.Re5 Qe5 21.Nd2 Qd4 22.Nf3 Qd1 23.Rd1 Rfe8 24.h4 Re4 25.Nd4 Rc8 26.g3 Ba4 27.Rd2 Re1 28.Kg2 Rc1?? 29.Bc1+– Rc5 30.Ba3 Rc4 31.Bd6 Bd7 32.Be5 a4 33.Rb2 a3 34.Rb8 Rc8 35.Rc8 Bc8 36.Kf3 Ba6 37.Bd6 Bc4 38.Ba3 Ba2 39.Ke3 Kg7 40.g4 f6 41.f3 Kf7 42.Nc6 Ke6 43.f4 h6 44.Nd4 Kf7 45.Bd6 Bc4 46.Bb4 Ba2 47.Bc3 Ke7 48.Nc6 Kf7 49.Kd4 Bc4 50.Nb4 Be2 51.Nd5 Bg4 52.Nc7 Be6 53.Bb4 Ba2 0–1. bratek55 (1680) – piastunkagol (1610), kurnik, 2011.

8.Bd3 b6 9.0-0 Bb7 10.c4 c5 11.bc5 bc5 12.cd5 ed5 13.dc5 Nc5 14.Nc3 Nd3 15.Qd3 a5 (15...Nc6 16.Nb5=) 16.Rfe1 Nc6 17.Qd5 1–0. bratek55 (1775) – gppi (1635), kurnik, 2011.

8.Bd3 b6 9.0-0 c5 10.bc5 bc5 11.c4 dc4 (11...cd4 12.Qe2+= (worse is 12.Nd4 Ne5 13.Na3 Ba6-/+)) 12.Bc4 (12.Be4 Qb6 13.Ba8 Qb2 14.Nbd2=) 12...cd4 13.Bd4 (13.Qd4 Nc6 14.Qf4 Rb8=) 13...Nb6 (13...Nc6!? 14.Bc3 Nde5-/+) 14.Bb3 Bb7 15.Nbd2 Nc6 16.Bb2 Qd3 17.Nc4 Qd1 18.Rfd1 Rfd8 19.Nd6 Ba6 20.Rac1 Be2 21.Re1?? Bf3+= 22.gf3 Nc8?? 23.Rc6?? Nd6= 24.Rd6 Rd6 25.ed6 Bb2 26.d7 Rd8 27.Ba4 Bf6 28.Rc1 Kf8 29.Kf1 Ke7 30.Rc7 a5 31.Ke2 h5 32.Ra7 Bc3 33.Kd3 Bb4 34.Kc4 Rb8 35.h3 Rb6?? 36.Bb5 Rd6 37.Ra8 Rd7 38.Bd7 Kd7 39.a3 Ba3+= 40.Ra5 Bd6 41.Ra6 Ke7 42.Kd4 Bh2 43.Ke4 Kf6 44.f4 Bg1 45.Kf3 g5? 46.fg5+– Kg5 47.Kg2 1–0. bratek55 (1725) – tarzan111, kurnik, 2011.

8.Bd3 b6 9.0-0 c5 10.bc5 bc5 11.c4 cd4 12.Bd4 dc4?? (12...Nc6 13.cd5 Nd4 14.Nd4 Ne5 15.Be2-/+) 13.Bc4 (better is 13.Be4 Nc6 14.Bc6+–) 13...Nb6 (better is 13...Nc6!? 14.Bc3 Nde5-/+) 14.Bb3 Bb7 15.Bb2 Qc7 16.Nbd2 Nc6 17.Rc1 Qe7 18.Qe2 Rac8 19.Ne4 Nd5 20.Nd6 Rc7?? (better is 20...Rb8+=) 21.Bd5 ed5 22.Ba3?? Qe6 23.Rfe1 Re7? 24.Nb7+– Rb7 25.Bf8 Bf8 26.Qa6 (26.Qa6 Rb6 27.Qd3+–) 1–0. bratek55 (1650) – mar82io, kurnik, 2011.

8.Be2 b6 9.0-0 Bb7 10.c3 c5 11.bc5 bc5 12.Nbd2 cd4 13.cd4 Nc6 14.Ba3 Qa5? (better is 14...Re8!?+=) 15.Bf8+– Bf8 16.Nb3 Qa4 17.Nc5 (better is 17.Qd3!?+–) 17...Nc5 18.dc5 Qa5 19.Rb1 Bc8 20.Rb5 (20.Bb5 Nb4 21.a3+–) 20...Qa2+= 21.Bd3 Ba6 22.Rb3 Bd3 23.Qd3 Bg7 24.Ra3 Qb2 25.Re1 Qb4 26.Raa1 Qc5 27.Rac1 Qb6 28.Rb1 Nb4 29.Qd4? Qd4–+ 30.Nd4 a5 31.Nb5? Rb8 32.Nd6 Rb6 33.f4 Rc6 34.Rec1 Rb6 35.Rc8 Bf8 36.Ne8 Rc6 37.Rc6 Nc6 38.Nf6 Kg7 39.Rc1 Nd4 40.Rc8 Ne2 41.Kf2 Nf4 42.Ra8?? Nd3–+ 43.Ke3? Ne5 44.Ne8 Kh6 45.Ra5 Nc4 46.Kf4 Na5 47.Nc7 Bd6 48.Ke3 Nc6 49.Nb5 Bc5 50.Kf3 f5 51.g3 Kg7 52.Nc3 Kf6 53.Na4 Ne5 54.Kg2 Bd6 55.h3 Nc4 56.Kf3 e5 57.Nc3 d4 58.Nd5 Ke6 (58...Ke6 59.Ke2 Kd5–+) 0–1. bratek55 (1690) – dacuslucicus (1635), kurnik, 2011.

5.e4 d6

6.Nbd2 a5 7.a3 ab4 8.ab4 Ra1 9.Qa1 Nc6 (9...Na6 10.c3=) 10.b5 Nb4? (better is 10...Nb8=) 11.Qb1 1–0. tightfist (2300) – taxista (2510), net–chess.com, 2010.

6.Nbd2 a5 7.b5 c6 8.a4 cb5 9.ab5 Qb6 10.d4 Nbd7 11.Bd3 e5 (11...d5 12.e5 Nh5 13.g3=) 12.de5 (12.0-0!? Re8 13.Nc4+=) 12...Ne5= 13.Ne5 de5 14.Be5? (14.0-0 Rd8=) 14...Ng4 (better is 14...Ne4!? 15.Ne4 Be5-/+) 15.Bg3+= Ba1 (15...Ne5!? 16.Be2 Rd8+=) 16.Qa1= Qf6 (16...f6 17.0-0 Be6 18.Nf3=) 17.e5+= Qe7 18.0-0 f5 (18...Be6+=) 19.f3 (better is 19.Nf3!? g5 20.Bc4 Be6 21.Be6 Qe6 22.Ng5+/-) 19...Ne3 20.Re1 Nd5 (20...f4 21.Bf2=) 21.Qd4 (21.Nc4 Be6+=) 21...Be6= 22.c4? (better is 22.Nc4!?=) 22...Nb4-/+ 23.Bb1 (23.Qc3 Nd3 24.Qd3 a4–+) 23...Rfd8–+ 24.Qc3 Rac8 25.Bf4?? (better is 25.Qe3–+) 25...Nd5! 26.Qd4 Qh4 27.g3 Nf4 28.Qd8 Qd8 (28...Qd8 29.gf4 Qd4 30.Kg2 Qd2 31.Kh3 Qe1 32.Be4 Qf2 33.Bd5 Bd5 34.cd5 Qf3 35.Kh4 Qg4) 0–1. Parron Luceno,David – Arana Garate,Jon (1905), Donostia ESP, Gipuzkoa Ch, 2013. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.d3 0-0 5.e4 d6)

6.Nbd2 e5 7.Rb1 (7.Be2 a5 8.b5 Qe8=) 7...Be6 (7...Re8 8.a3=) 8.d4 (8.a3 Nbd7=) 8...Ba2 (8...ed4 9.Nd4 Ba2 10.Ra1=+) 9.Ra1 Be6 10.de5 de5 (10...Nfd7 11.Nc4=+) 11.Be5 (11.Ne5 Qe7 12.Ra4 Nbd7 13.Nd7 Qd7=+) 11...Qe7 12.c3 (12.Bd4 Rd8 13.Bc5 Qe8-/+) 12...Nc6 13.Bc4?? (better 13.Bf6 Qf6 14.b5=+) 13...Ne5 (better 13...Bc4 14.Nc4 Ne4 15.0-0 Be5 16.Nce5 Ne5 17.Ne5 Qe5 18.Re1–+) 14.Ne5 Rad8 (14...Bc4!? 15.Ndc4 b5 16.Qc2–+) 15.Qc2 Rd2! 16.Qd2? A deflection (16.Kd2 Decoy to d2 16...Qd6 Theme: Double Attack) 16...Bc4 (16...Ne4 17.Qe3 Be5 18.Be6 Bc3 19.Kf1 Qe6 20.Rd1 Bb4 21.Qe2–+) 17.Nc4 Qe4?? (better 17...Ne4 18.Qe3 Bc3 19.Ke2 Qe6–+) 18.Ne3+= Ng4 (18...Qe7 A) worse 19.Ra7 Ne4 20.Qc2 Bc3 21.Ke2 Bd4=+ (worse 21...Qb4 22.Rb1 Qc5 23.Rbb7=); B) 19.0-0 Ne4 20.Qd3 Nc3 21.Ra7 Qb4 22.Re1=) 19.0-0 (worse 19.Ra7 Qb1 20.Qd1 Bc3 21.Ke2 Qb4-/+) 19...Ne3 20.fe3 Bh6 (20...a6 21.Rf3+=) 21.Rae1 Re8 The pressure on the isolated pawn grows (21...a6 22.Rf3+=) 22.Qa2 (22.Rf3 Bg7+=) 22...Qe6 (better 22...Be3 23.Kh1 Re6=) 23.Qa7 (better 23.Qe6 Re6 24.e4+=) 23...Be3-/+ 24.Kh1?? (better 24.Qe3 Qe3 25.Re3 Re3 26.Rc1-/+) 24…Ba7–+ (24...Ba7 25.Re6 fe6–+) 0–1. aravind555 – Gilkafka10 (1625), lichess.org, 2018.

6.Be2 a6 7.0-0 Nc6 8.a3 e5 9.c4 Be6 10.Nbd2 h6 11.Rc1 Ne7 12.Nb1 Rc8 13.Nc3 c6 14.Qd2 Kh7 15.Bd1 Bg4 16.h3 Be6 17.Bc2 g5 18.d4 Nh5 19.d5 Bd7 20.Ne2 Ng6 21.Nh2 Ngf4 22.Nf4 gf4 23.f3 Qg5 24.Rf2 Bh3 25.Ng4 Bg4 26.fg4 Qg4 27.Bd1 Qg5 28.Bh5 Qh5 29.Rf3 Bf6 30.Kf2 Bh4 31.Ke2 Rg8 32.Kd3 Rg3 33.Rcf1 Rcg8 34.dc6 bc6 35.Kc2 Rg2 36.R3f2 Bf2 37.Rf2 f3 38.Kb3 Qh4 39.Rg2 fg2 40.Qd6 g1Q 41.Qe5 Qe3 42.Ka4 a5 43.ba5 f6 44.Qe7 Rg7 45.Qd8 Qee4 46.Bc3 Qc4 47.Bb4 c5 48.a6 cb4 49.Ka5 ba3 50.a7 Qh5 51.Kb6 Qhc5 0–1. Adjailton (1685) – dito_farhad (1635), lichess.org, 2017.

6.Be2 a6 7.0-0 Nbd7 8.c4 b6 9.a4 Bb7 10.Nbd2 a5 11.b5 e5 12.Nb3 Ne8 13.h3 Nc5 14.Nc5 bc5 15.g4 Bc8 16.Kg2 f5 17.ef5 gf5 18.g5 e4 19.Bg7 ef3 20.Bf3 Qg5 21.Kh1 Ng7 22.Ba8 Qh4 23.Qf3 f4 24.Kh2 Nf5 25.Bd5 Kh8 26.Rh1 Nd4 27.Qg2 f3 28.Bf3 Nf3 29.Qf3 Rf3 30.Kg1 Qf2 0–1. Adjailton (1805) – Musoha (1800), lichess.org, 2019.

6.Be2 a6 7.Nbd2 Nc6 8.a3 e5 9.c4 b6 10.Qc2 Qe7 11.Nb3 Bg4 12.h3 Be6 13.0-0-0 Nd8 14.Nfd2 b5 15.g3 bc4 16.dc4 a5 17.b5 c6 18.f4 cb5 19.cb5 Rc8 20.Bc3 ef4 21.gf4 Nh5 22.Bh5 Rc3 23.Qc3 Bc3 24.Rhg1 Bd2 25.Rd2 Qh4 26.Bg4 Bb3 27.Rdg2 Nb7 28.f5 Qg5 29.Kb2 a4 30.fg6 hg6 31.Bf5 Qf6 32.Kb1 Nc5 33.Bg6 fg6 34.Rg6 Qg6 35.Rg6 Kf7 36.Rd6 Ke7 37.Rc6 Ne4 38.b6 Rb8 39.Rc7 Kd6 40.Rh7 Rb6 41.h4 Be6 42.Kc2 Bf5 43.Kd1 Ng3 44.Rh6 Ke5 45.Rb6 Bg4 46.Ke1 Kd4 47.Rb4 Ke3 48.Rg4 Nh5 49.Ra4 Nf6 50.Ra6 1–0. Adjailton (1830) – MARKJASP (1785), lichess.org, 2020.

6.Be2 Na6 7.b5 Nc5 8.0-0 Na4 (8...a6 9.a4=) 9.Bd4 a6 10.ba6 Ra6 11.c3 Bd7 (11...b5 12.Qb3 c6 13.Re1=) 12.Bf6 ef6 (12...Bf6 13.d4 b5 14.Qb3=) 13.d4 Rb6 (13...Ra7 14.Qb3=) 14.Re1 Re8 15.Bd3 (15.Bc4 Nb2 16.Qe2 Nc4 17.Qc4 Bb5-/+) 15...Nb2 16.Qd2 (16.Qc2 f5=) 16...Nd3 (16...f5 17.Bc2+=) 17.Qd3= f5 18.Nbd2 fe4 19.Ne4 (19.Re4 Bf5 20.Re8 Qe8+=) 19...Bf5-/+ 20.d5 Be4 (20...Bc3 21.Qc3 Be4 22.Qe3=) 21.Re4+= Re4 22.Qe4 Bc3 23.Rc1 Qf6 (23...Bg7 24.a4+=) 24.h4 (24.Qc4 Bb2 25.Re1-/+) 24...Rb2-/+ 25.a4 Ba5 26.h5 gh5 27.Rc2 Rb3 (27...Rb1 28.Kh2 Qa1 29.Kg3-/+) 28.Re2 (28.Kh2 Kg7-/+) 28...Rb4 29.Qc2 Kg7 30.Kh1 Qf4 (30...h4 31.Ng1–+) 31.Re3 Qc4 (31...Qc4 32.Qd1 Ra4–+) 0–1. Sternik,Ryszard (1885) – Kirali,Hasan (1860), FICGS, 2010. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e4 0-0 5.d3 d6 6.Be2 Na6)

6.Be2 b5 7.0-0 Nbd7 (7...a5 8.a3=) 8.Nbd2 (8.a4 ba4 9.Nc3 Rb8 10.Ra4 c5 11.Ra7 Rb4+=) 8...Bb7 (8...c5 9.d4 cb4 10.Bb5=) 9.a4 ba4 10.Ra4 c5 11.Qa1 cb4 (11...Bc6!? 12.Ra7 Qb6 13.Ra8 Ra8 14.bc5 Nc5+=) 12.Rb4+/- Qc7 13.c4 (13.Rc4!? Qb8 14.Rb1+/-) 13...Nc5 (13...a5 14.Rb3+=) 14.Bc3 (14.e5!? Nh5 15.ed6 ed6 16.Bg7 Ng7 17.d4+=) 14...a5= 15.Rb5 (15.Rb2 e5=) 15...a4+= 16.e5 Nh5 17.ed6 ed6 (worse is 17...Qd6 18.Bg7 Ng7 19.d4+=) 18.Bg7 Ng7 19.d4 Na6 (better is 19...Nce6!?=) 20.Qa4 (20.Rfb1 Bc6 21.Rb6 Rfe8+/-) 20...Bc6 21.Ra1 (better is 21.Qb3 Ne6 22.g3+=) 21...Qa7?? (better is 21...Ne6+=) 22.Qb3 (22.Qd1 Qd7 (22...Bb5?? 23.cb5 Ne6 24.Nc4+–) 23.Rba5 Nb4+–) 22...Bb5 23.cb5 (worse is 23.Qb5 Qe7 24.Bd3 Nc7+=) 23...Qe7 24.Ra6?? (better is 24.Re1 Nc7 25.b6+/-) 24...Qe2-/+ 25.Nc4? (better is 25.Ra8!? Ra8 26.g3-/+) 25...d5 (25...Rfc8 26.Ra8 Ra8 27.h4–+) 26.Ne3 Ra6 27.ba6 Qa6 28.Qd5 Qa1 29.Nf1 Qa8 30.Qa8 Ra8 31.g3 f6 (31...Nf5 32.g4 Nd6 33.Ne3–+) 32.Kg2 (32.Ne3 Rd8-/+) 32...Kf7 (32...Rd8 33.Ne3–+) 33.g4 (33.Ne3 Rd8-/+) 33...Ne6 34.Ne3 Rd8 35.Nc2 Nf4 36.Kg3 Ne2 37.Kg2 h6 38.Kf1 (38.h3 h5–+) 38...Nf4 39.Ke1 Ke6 (39...Re8 40.Ne3–+) 40.Kd2 Rb8 41.Ke3 (41.Ne3 Rb2 42.Nc2 Nh3–+) 41...Nh3 42.Nfe1 (42.Nd2 Rc8 43.d5 Ke5–+) 42...Rb3 43.Ke2 (43.Kd2 Nf2 44.Ne3 Ne4 45.Ke2 Nc3 46.Kd2 Nb1 47.Ke2 Rb2 48.Kd3 Rd2 49.Kc4 Rh2–+) 43...Nf4 (43...Nf4 44.Kf1 Kd5–+) 0–1. fr3145 (1830) – pbraham (1890), gameknot.com, 2015.

6.h3 Na6 7.c3-/+.

6.Be2 a5

7.b5 e5 8.Nc3 Nh5 (8...d5 9.0-0=) 9.0-0 Nf4 10.Nd5 Ne2 11.Qe2 c6 12.bc6 bc6 13.Ne3 f5 14.ef5 gf5 15.Rab1 Be6 16.Nc4 c5 17.Nfd2 Nc6 (17...f4 18.Qf3 Ra6 19.Rfe1=) 18.f4+= Rb8 19.fe5 de5 20.Qf2 (20.Be5? Ne5 21.Rb8 Qb8–+; worse is 20.Ne5 Nd4 21.Qe3 Ba2–+) 20...Rb2 (20...Nd4 21.c3 Nb5 22.Qe3=) 21.Rb2 (21.Nb2 e4 22.c3 Bc3 23.Qg3 Kh8 24.Nb3+=) 21...e4= 22.Kh1 Bb2 23.Nb2 Qd4 24.Qg3 Kh8 25.Nbc4 f4 26.c3 (26.Qe1!? Bc4 27.Nc4 ed3 28.cd3 Qd3 29.Ne5 Ne5 30.Qe5 Kg8 31.Qg5 Kh8 32.Qe5 Kg8 33.Qg5 Kh8 34.Qe5=) 26...Qd3-/+ (worse is 26...fg3 27.Rf8 (27.cd4? Rf1 28.Nf1 ed3–+) 27...Kg7 28.cd4 Kf8 29.Ne4 cd4 30.Ng3=) 27.Rf4 Rg8 28.Qd3 ed3 29.Kg1 Bd5 30.Rf5 Rg2 31.Kf1 Be6 32.Rf8 Kg7 ½–½. bulent_2010 – PeterRs, ChessWorld.net, 2016.

7.b5 c6

7.b5 Nbd7

6.Be2 b6

7.0-0 c5 8.a3 a5 9.b5 Nbd7 10.c4 Bb7 11.Nc3 e6 12.Qc2 Qc7 13.d4 cd4 14.Nd4 Rac8 15.Rac1 Nc5 16.f3 Ncd7 17.Qd2 Ne5 18.Na4 Nfd7 19.f4 Nc4?? (better is 19...Nc5 20.Nc5 dc5 21.Ne6 fe6 22.Be5 Be5 23.fe5 Qe5= (worse is 23...Be4 24.Qe3 Rf1 25.Rf1+/-)) 20.Rc4 Qb8 21.Rfc1 Be4 22.Bf3 Bf3 23.Nf3 Nc5 24.Nc5 dc5 25.Bg7 Kg7 26.Ne5 Rcd8 27.Qc3 f6 28.Nc6 Qd6 29.Nd8 Rd8 30.Qe3 Qd5 31.Re4 Kf7 32.Re1 Rd6 33.h3 c4 34.Qc3 Qc5 35.Kh2 Qb5 36.Qc4 Qc4 37.Rc4 1–0. bratek55 (1660) – jacekmpl (1775), kurnik, 2011.

7.0-0 Bb7

8.a3 Nc6 9.Nc3 Ne8 10.Rb1 Nd4 11.Nd2 Ne2 12.Qe2 Qd7 13.f4 Qc6 14.Nd5 Qc2 15.Ne7 Kh8 16.Bg7 Ng7 (better is 16...Kg7!? 17.f5 Qc3+=) 17.Rfc1+– Qa4 18.Rc7 Rab8 19.Nc4 (better is 19.Qf2+–) 19...b5?? (better is 19...Ne6 20.Rb7 Rb7+/-) 20.Nd6+– Qa3 21.Nb7 Ne6 22.Nd6 Nc7+= 23.Nc6 Rb6= 24.Rc1?? Ne6 25.f5?? Qc1–+ 26.Kf2 Nf4 27.Qf3 Rc6 28.Qf4 Qf4 (28...Qf4 29.Ke2 Rc2 30.Ke1 Qc1) 0–1. erisonpassos – water123, kurnik, 2011.

8.c4 a5 9.b5 c5 10.Nc3 e5 11.Nd5 Nd5 12.cd5 Nd7 13.Bc1 Nf6 14.Bg5 h6 15.Bh4 g5 16.Bg3 Nh5 17.Qd2 Nf4 18.Bf4 ef4 19.g3?? (better is 19.Rac1=) 19...Ba1 20.Ra1 fg3 21.hg3 Qf6 22.Rf1 Rae8 23.Kg2 Bc8 24.Nh2 Kg7 25.f4 gf4 26.Rf4 Qd4 27.Nf3 Qa1 28.Nh4 Re5 29.Bg4 Bg4 30.Rg4 Kh7 31.Nf5 Rf5 32.ef5 Qf6 33.Qf4 Re8 34.Qf2 Re5 35.Rf4 Rd5 36.Qf3 Re5 37.g4 d5 38.d4 cd4 39.Rd4 Re2! 40.Qe2 Qd4 41.Kg3 Kg7 42.Qe8 Qc3 43.Kf4 Qd4 44.Kf3 Qd3-/+ 45.Kf4 Qd2 46.Kf3 Qd1 47.Kf4 Qf1 48.Kg3 Qg1 49.Kf3 Qh1 50.Kf2 Qe4 51.Kg3?? Qe8–+ 52.Kf4 d4 53.Kf3 d3 54.g5 d2 55.f6 Kg6 56.gh6 d1Q 57.Kf4 Qd4 58.Kf3 Qee3 59.Kg2 Qdd2 60.Kh1 Qee1 0–1. bratek55 (1615) – wallace1203 (1615), kurnik, 2011.

8.c4 a5 9.b5 Nbd7 10.Nc3 e6 11.Qc2 Nc5 12.Nd4 e5 13.Nf3 Ne6 14.g3 c5 15.Nd5 Nd5 16.cd5 Nd4 17.Nd4 cd4 18.Rac1 Rc8 19.Qb3 Rc1 20.Rc1 Qd7 21.Kg2 Rc8 22.Qd1 Rc1 23.Bc1 Qc7 24.Bb2 Qc5 25.Qb3 Bf8 26.Bd1 Bc8 27.f4 f6 28.Qc2 Bd7 29.Qc5 dc5 30.a4 ef4 31.gf4 Bd6 32.Bc1 Kg7 33.h3 h5 34.Bf3 h4 35.Bd2 f5?? 36.e5+– Be7 37.Be1 g5 38.e6 Be8? 39.fg5+– Bg5 40.d6 Kf6 41.d7 Bd7 42.ed7 Ke7 43.Bc6 Kd8 44.Kf3 Be3 45.Bh4 Kc7 46.d8Q 1–0. bratek55 (1615) – burza56, kurnik, 2011.

8.c4 c5 9.a3 a5 10.b5 a4 11.Nc3 e6 12.Na4 d5 13.ed5 ed5 14.Nc3 d4 15.Ne4 (better is 15.Nb1!?+=) 15...Ne4+= (15...Be4?! 16.de4 Ne4 17.Bd3+=) 16.de4 Be4 17.Bd3 Bf3 18.Qf3 Nd7 19.Rfe1 Ne5 20.Qd1 Qc7 21.Be4 Ra7 22.Bd5 h5 23.h3 Qd6 24.f4 Nd7 25.Qf3 Nf6 26.Bc6 Rd8 27.Rad1 Re7 28.g3 Re1 29.Re1 Nd7 30.Qd5 Qc7?? 31.Re7+– Nf6 32.Qf7 Kh8 33.Qg7 1–0. bratek55 (1605) – irbas (1605), kurnik, 2011.

8.c4 c5 9.a3 a5 10.b5 Nbd7 11.Nc3 e6 12.Qc2 Qe7 13.Rad1 h6 14.h3 Kh7 15.Na4 Nh5 16.Bg7 Kg7 17.g3 Nhf6 18.Nd2 Kh7 19.f4 d5 20.e5 Ne8 21.Bf3 Ng7 22.cd5 ed5 23.Rde1 Ne6 24.Nb3 Rac8 25.Qg2 Ba8 26.Bd5= Bd5 27.Qd5+/- Nd4 28.Nd4+– cd4 29.Qd4 Qa3 30.e6 fe6?? 31.Qd7 Kh8 32.Nb6 Qc5 33.d4 Qb6 34.Re6 Qb8 35.Rg6 Rcd8 36.Qg7# 1–0. bratek55 (1675) – chmielu1971, kurnik, 2011.

8.c4 c5 9.a3 Nc6 10.b5 Nb8 11.Nc3 Nbd7 12.Nd5 Nd5 13.Bg7 Nc3?? (better is 13...Kg7 14.ed5 e6=) 14.Bc3+– f6 15.d4 cd4 16.Qd4 Qc7 17.a4 Nc5 18.Nd2 Rac8 19.f4 Rfd8 20.Bf3 Ne6 21.Qe3 Kf7 22.Bg4 Rb8 23.Be6 Ke6 24.f5 Kf7 25.fg6 hg6 26.Rae1 Rbc8 27.Qg3 Rh8 28.h3 Qc5 29.Qe3 Qh5 30.Qf3 Qh6 31.Qf4 Qh5 32.e5 de5 33.Be5 g5 34.Qf5 Qg6 35.Qg6 Kg6 36.Bb2 e5 37.Ne4 Be4 38.Re4 Rhd8 39.Rc1 Rd2 40.Bc3 Rd3 41.Rc2 Re8 42.a5 f5 43.Re5 Rc3+/- 44.Rc3 Re5 45.ab6 ab6 46.Kf2 Kf6 47.g3 Ke6?? 48.Kf3 Re4?? 49.Rc1 Ke5 50.Rc3 Kd4= 51.Rc1 Re3 52.Kf2 Rb3 53.h4 gh4 54.gh4 Rh3 55.Ra1? Kc4 56.Rb1?? Rh4–+ 57.Kf3 Rd4 58.Ke3 Re4 59.Kf3 Kc5 60.Rb2 Rb4 61.Rc2 Kb5 62.Rc8 f4 0–1. bratek55 (1685) – jacekmpl (1750), kurnik, 2011.

8.c4 e5 9.Nc3 a6 10.Nd5 c6 11.Ne3 d5 12.ed5 cd5 13.Be5 dc4 14.dc4 Nbd7 15.Bc3 Rc8 16.Qb3 Re8 17.Rfd1 Qc7 18.Qb2 Qf4? (better is 18...Bf3 19.Bf3 Ne5+/-) 19.Rd7!+– Nd7 20.Bg7 f6 21.Rd1 Rcd8 22.Bf6 Qf6 23.Qb3 Bf3 24.Bf3 Ne5 25.Bd5 Kg7 26.h3 Re7 27.a4 Red7 28.g3 Qe7 29.f4 Nf7 30.Ng4 Nd6?? 31.Qc3 Kf8 32.Qh8 1–0. bratek55 (1720) – luani, kurnik, 2011.

8.c4 e5 9.Nc3 Nc6 10.b5 Nd4 11.Nd4 ed4 12.Nd5 Bd5 13.cd5 Nd7 14.a4 f5 15.Bf3 f4 16.Ba3 Ne5 17.Rc1 Rc8 (17...a6 18.ba6 Ra6 19.Bb2=) 18.Rc2 g5 (18...a6!? 19.Bg4 Ra8 20.Be6 Kh8+=) 19.Bg4+/- Rb8 20.Be6 Kh8 21.f3 h5 22.h3 Rb7 23.Qd2 g4 24.hg4 hg4 25.Kf2 Qh4 26.Ke2 gf3 27.gf3 Bh6 28.Kd1 Qg3 29.Qh2 Kg7 30.Qg3 fg3+/- 31.Ke2?? Rbb8?? 32.Bc1 Bc1+/- 33.Rcc1 Kg6?? 34.Rc7 Rf6?? 35.Ra7 Rh8+/- 36.f4?? Rh2–+ 37.Ke1 Nd3 38.Kd1 Nb2 39.Kc1-/+ Nd3 40.Kb1?? g2–+ 41.Rg1 Rh1 42.f5 Kg5 43.Rg7+/- Kf4 44.R7g2 (44.R7g2 Rg1 45.Rg1 Ke4 46.a5 ba5 47.b6+/-) 1–0. bratek55 (1620) – nexhi2010, kurnik, 2011.

8.c4 e5 9.Nc3 Nbd7 10.Qb3 a6 11.Rac1 Bh6 12.Rc2 a5 13.a3 ab4 14.ab4 c5 15.b5 Bg7 16.Bc1 Nh5 17.g3 f5 18.Bg5 Bf6 19.Bf6 Qf6 20.Nh4 fe4 21.Bh5 ed3+= 22.Rd2 gh5 23.Rd3 e4 24.Re3 Rae8 25.Nd5 Bd5 26.cd5 Ne5 27.Qd1 Ng4 28.Ra3? Rf7 29.h3? Ne5?? 30.Qh5+= Ref8 31.Re3 Rg7 32.Re4 Nd7?? 33.Re6 Qb2?? 34.Qe2?? Qe2+/- 35.Re2 Ne5 36.f4 Rg3 37.Kh2 Rd3? 38.fe5?? Rf1–+ 39.e6 Kf8 40.Kg2 Ra1 41.Nf5 Raa3?? 42.Nd6 Ke7?? 43.Nc8?? Ke8= 44.Nd6 Ke7 45.Nf5 Kf6 46.e7 Ra8 47.e8Q?? Re8+= 48.Re8 Kf5 49.Re7 Rd5-/+ 50.Rh7 Rd2 51.Kf3 Rd3 52.Kg2 Rb3 53.Rf7 Kg6 54.Rd7 Rb5 55.Kg3 Rb3 56.Kg4 Rb4 57.Kg3 c4 58.Rd6 Kf5 59.Rd5 Ke6 60.Rd4 Ke5 61.Rd8 Rb3 (61...Rb3 62.Kg4 c3–+) 0–1. bratek55 (1685) – marcaominas (1690), kurnik, 2012.

8.Nbd2 c5 9.b5 d5 10.e5 Nfd7 11.c4 dc4 12.Nc4 e6 13.Nd6 (13.d4!?+=) 13...Bd5+= 14.d4 cd4 15.Bd4 Ne5 16.Be5 Be5 17.Ne5 Qd6 18.Nc6? (18.Nc4 Qf4+=) 18...Nd7?? (better is 18...Nc6 19.bc6 Qc6–+) 19.Bf3+= Nf6 20.a4 Qf4 21.Bd5 Nd5 22.g3 Qh6 23.Qg4 Nf6 24.Qb4 Qh3 25.f3 Nd5 26.Qg4 Qg4 27.fg4 Ne3 28.Rf4 Nd5 29.Rd4 Kg7 30.Kg2? Ne3–+ 31.Kf3 Nc2 32.Rad1 Nd4 33.Rd4 a6 34.Rd7 ab5 35.ab5 Ra2 36.h4 Rb2 37.Nd4 Rb4 38.Ne6= Kg8 39.Nf8 Kf8 40.Rd5 Ke7 41.g5 Ke6 42.Rd8 Rb5 43.Re8 Kf5?? 44.Rf8 Rb3+= 45.Kf2 Kg4 46.Rf7 Rg3 47.Rh7 Rh3 48.Rg7 Kf5 49.Rf7 Ke6 50.Rf6 Ke7 51.Rb6 Rh4 52.Rg6 Kf7 53.Ra6 Rh2 54.Kg3 Rc2 55.Ra7 Kg6= 56.Ra5 1–0. bratek55 (1730) – 0471 (1690), kurnik, 2012.

8.Nbd2 Nbd7 9.c4 c5 10.a3 cb4 11.ab4 Rc8? (better is 11...Qc7!?+=) 12.Ra7+– Rc7 13.Qa1 Nh5 14.Bg7 Ng7 15.Nd4 Ne5 16.Nb5 Rd7 17.f4 Nc6 18.Ra4 Ne6 19.f5 Ned4?? (19...gf5 20.ef5 Ng7 21.f6+–) 20.Bd1 (better is 20.Nd4 Nd4 21.Qd4+–) 20...Nb5 21.cb5 Nd4?? 22.Qd4 e5 23.Qe3 Rc7 24.Qh6 Qc8 25.f6 (25.f6 Be4 26.Qg7) 1–0. bratek55 (1660) – ivan1964bg1, kurnik, 2011.

8.Nbd2 Nbd7 9.c4 c5 10.a3 cb4 11.ab4 e6 12.Qb3 d5 13.e5 Ng4 14.d4 f6 15.h3 Nh6 16.cd5 Bd5 17.Bc4 Bc4 18.Nc4 fe5 19.de5 Qe7 20.Rad1 Rf5? 21.Nd4+– Rf4 22.Nc6 Qf7?? 23.Nd6 Qf8 24.Qe6 Kh8 25.Qd7 1–0. bratek55 (1760) – 0471 (1660), kurnik, 2012.

8.Nbd2 Nbd7 9.c4 c5 10.a3 e5 11.Qb3 Rb8 12.b5 Kh8 13.a4 Ng8 14.a5 Nh6 15.ab6 ab6 16.Ra7 Qc8 17.Rfa1 Ra8 18.Ra8 Ba8 19.Qa4 Bb7 20.Qa7 Qa8 21.Qa8 Ra8 22.Ra8 Ba8 23.Kf1 f5 24.h3 f4 25.g3 Nf6 26.gf4 ef4 27.Kg2 Nf7 28.Nf1 Kg8 29.N1h2 h5 30.Nh4 Kh7 31.N4f3 Nd7 32.Bg7 Kg7 33.Nd2 Nfe5 34.f3 Nf6 35.Nhf1 Kh6 36.Nb3 g5 37.Nh2 Bb7 38.d4 Ng6 39.dc5 dc5 40.Kf2 Ne5 41.Nf1 Bc8 42.Kg2 g4 43.hg4 hg4 44.fg4 Neg4 45.Bf3? Kg5 46.Nbd2+= Ne3 47.Ne3? fe3–+ 48.Nf1 Kf4 49.Be2?! Ng4 50.Bg4?? Bg4 51.e5 e2 52.Kf2 Ke5 53.Ne3 Bh5?? 54.Ke1?? Kd4–+ 55.Nf5 Kc4 56.Nd6 Kd5 57.Nf5?? c4 58.Kd2 Kc5 59.Ng3 Kb5 60.Nh5 Kb4 0–1. bratek55 (1720) – carlosaugusto, kurnik, 2011.

8.Nbd2 Nbd7 9.c4 Rc8 10.Qb3 c5 11.a3 Qc7 12.Rac1 Ng4 13.Bg7 Kg7 14.d4 cd4 15.Nd4 Ngf6 16.f3 Ne5 17.Qb2 Nc6 18.Nb5 Qb8 19.Rfd1 a6 20.Nd4 Nd4 21.Qd4 Qc7 22.g4 Kg8 23.Nf1 Nd7 24.f4 Nf6 25.Bf3 Rfd8 26.g5 Nd7 27.Ng3 e5 28.Qe3 ef4 29.Qf4 Ne5 30.Be2 Qd7 31.c5 bc5 32.bc5 Qe6 33.cd6 Rc1 34.Rc1 Qd6 35.Rd1 Qc5 36.Qf2? Rd1–+ 37.Bd1 Qf2?? 38.Kf2=. bratek55 – leon1205 (1690), kurnik, 2012.

8.Nbd2 e5 9.c4 Nbd7 10.Nb3 a5 11.b5 Nc5 12.Nc5 bc5 13.a4 c6 14.h3 cb5 15.ab5 Nd7 16.Nd2 Nb6 17.Nb3 a4 18.Nd2 Qg5 19.Nf3 Qf6 20.Bc1 h6 21.Be3 g5 22.Nh2 a3 23.Ra2 Ra7 24.Ng4 Qe6 25.Nh2 f5 26.ef5 Qf5 27.Bg4 Qf6 28.Bf3 Bf3 29.Nf3 Rfa8 30.Nd2 Kh7 31.Ne4 Qe7 32.Qg4 Nd7 33.Qf5 Kh8 34.Rb1 Nf6 35.Nf6 Qf6 36.b6?? Qf5–+ 37.ba7 Ra7 38.Rb3 e4 39.de4 Qe4 40.Raa3 Ra3 41.Ra3 Qc4 42.Ra8 Kh7 43.Rd8 d5 44.Rc8 d4 45.Bd2 Qc2 46.Ba5 d3 47.Rd8 c4 48.Rd7 Kg6 49.h4 gh4 50.Rd6 Kh5 51.f3 Bc3 52.Rd5 Kg6 53.Rd6 Kf5 54.Rd5 Ke6 55.Rh5 d2 56.Rh6 Kf7 57.Bc3 Qc3 58.Rh4 d1Q 59.Kh2 Qcc2 60.Rf4 Kg6 61.Rg4–+ Kh5 62.Rg3 Qf3! 63.Rf3 c3 64.Rh3 Kg5 65.Rg3 Kf6 66.Rf3 Qf5! 67.Rc3 Qe5 68.g3 Qc3 69.Kg2 Kg5 70.Kf2 Kg4 71.Ke2 Qg3 72.Kd2–+ Qa3 73.Ke2 Kf4 74.Kd2 Ke4 75.Kc2 Kd4 76.Kd2 Qa2 77.Ke1 Kd3 78.Kf1 Ke3 79.Kg1 Kf3 80.Kh1 Kg3 81.Kg1 Qa1 (81...Qg2) 0–1. bratek55 (1640) – burza56, kurnik, 2011.

8.Nbd2 e6 9.c4 Nbd7 10.Qb3 a6 11.Rac1 c5 12.a3 Qc7 13.Rfd1 Ng4 14.Bg7 Kg7 15.h3 Nge5 16.Ne5 Ne5 17.f4 Nd7 18.Bf3 e5 19.f5 gf5 20.ef5 Kh8 21.Bb7 Qb7 22.Ne4 Qc7 23.Rf1 Rg8 24.Qd1 Rg7 25.Qf3 Rag8 26.Rc2 f6 27.Qh5 b5 28.cb5 d5 29.Qh6?? de4–+ 30.bc5?? ed3 31.Rc3 Rg2 32.Kh1 e4 33.Qf4 Qf4 34.Rf4 Rg1 35.Kh2 R8g2 0–1. bratek55 – delnik, kurnik, 2011.

8.Nbd2 e6 9.c4 Nbd7 10.Qb3 a6 11.Rfd1 c5 12.a3 Qc7 13.Rac1 Rab8 14.Nf1 d5 15.cd5 ed5 16.ed5 Bd5 17.Qc2 Qb7 18.Ne3 Bc6 19.Nc4 Rbd8 20.Nce5 Ne5 21.Be5 Rfe8 22.d4 Be4= 23.Qb3 cd4 24.Bd4 Bd5 25.Qb2 Nh5 26.Bg7 Ng7 27.Re1 Nf5 28.Qc3 Rc8 29.Qd3 Be4 30.Rc8 Rc8 31.Qb3 b5 32.Bf1 Bf3-/+ 33.Qf3 Qf3 34.gf3 Rc3 35.Ra1 Rf3 36.Bg2 (36.Bg2 Rc3 37.Bd5-/+). bratek55 – delnik, kurnik, 2011.

8.c4 Nbd7

9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 e6 13.Qa7 Qa8 14.Ra1 c6 15.h3 h6 16.Kf1 g5 17.Qa8 Ra8 18.Ra8 Ba8 19.Na4 Nh5 20.Bg7 Kg7 21.g3 f5? 22.Nd4 g4? 23.hg4 fg4 24.Ne6 Kf6 25.Nc7 Bb7 26.Bg4 b5 27.Nb2 Ng3 28.fg3 Ne5 29.Be2 bc4 30.Nc4 Nc4 31.dc4 c5 32.bc5 dc5 33.Nd5 Ke5 34.Bf3 Kd4 35.Ke2 1–0. bratek55 – irbas (1625), kurnik, 2011.

9.Nc3 a5 10.a3 e5 11.Nd5 c6 12.Ne3 Qe7 13.Qb3 Rfb8 14.Rac1 c5 15.b5 Rf8 16.Nd5 Bd5 17.cd5 Nh5 18.g3 Rac8 19.Rc4 Bh6 20.Bc1 Bc1 21.Rcc1 f5 22.Nh4 Ng7 23.f4?? ef4–+ 24.Rce1 fe4 25.de4 fg3 26.Qg3 Ne5 27.Bg4-/+ Rf1 28.Rf1 Rf8 29.Rf8 Kf8 30.Be2 Qf6 31.Ng2 Kf7 32.Nf4 g5 33.Ng2 h5 34.Qf2 Qf2 35.Kf2 Kg6 36.h3 Ne8 37.Ne3 Nf6 38.Nf5?? Ne4 39.Ke3 Kf5 40.Bh5 Nf6 41.Be2 Nd5 42.Kf2 c4 43.Ke1 Nc7 44.a4 d5 45.Kd2 d4 46.Bf1 Kf4 47.Be2 c3 48.Kc2 Ke3 49.Bf1 Nd5 50.h4 gh4 51.Kb3 Nb4 (51...Nb4 52.Bh3 c2 53.Kb2 Ned3 54.Kb3 c1N 55.Kc4 Ne5) 0–1. bratek55 (1735) – evergreen1 (1725), kurnik, 2011.

9.Nc3 a5 10.a3 Ng4 11.Qb3 c5 12.b5 Nge5 13.Ne5 Ne5 14.Nd5 e6 15.Ne3 Qh4 16.g3 Qh3 17.f4 a4 18.Qc2 Nd7 19.Bg4 Qh6 20.Bg7 Qg7 21.Bf3 Qd4 22.Rfe1 f5 23.Kg2 Nf6 24.ef5 Bf3 25.Kf3 gf5 26.Ng2 Rae8 27.Qf2?? Qc3 28.Qe2+= Ng4 29.h3 Nf6 30.Rec1 Qa5 31.Qe1 Qa8 32.Kf2 e5 33.Qd1 e4 34.d4 e3 35.Ne3 Qe4 36.Rc3?? cd4–+ 37.Nf5 dc3 38.Nd6 Qe3 39.Kg2 Qe2 40.Qe2 Re2 41.Kf3 Rd2 42.Nf5 Re8 43.g4 c2 44.Rc1 Ne4 45.g5 Nc5 46.Nd6 Rd6 47.Rc2 Rd3 48.Kg4 Ra3 49.h4 Kg7 50.h5 h6 51.Rd2 Re7 52.Rd5 Rd3 0–1. bratek55 (1615) – anyrteb (1635), kurnik, 2011.

9.Nc3 c6 10.Qb3 e6 11.Rfd1 d5 12.e5 Ne8 13.d4 dc4 14.Bc4 Qc7 15.Rac1 c5 16.bc5 Bf3 17.gf3 bc5 18.Nb5 Qc6?? (18...Qd8 19.f4 a6 20.dc5 Bh6+/-) 19.Nd6 (better is 19.d5 Qb7 20.de6+–) 19...Nd6–+ 20.ed6 Qd6 21.d5 Bb2 22.Qb2 Qf4 23.Qd2 Qd2 24.Rd2 ed5 25.Rd5 Nf6 26.Rc5 Kg7 27.Rc7 Nh5 28.Bb3 Nf4 29.R1c4 Nd5 30.Rd4?? Nb6 31.Kg2 a5 32.Rb7 Nc8 33.Rdd7+/- a4 34.Bf7 Kh6 35.Bd5 Ra6 36.Rh7 Kg5 37.h4 Kf4 38.Rbf7 Rf7 39.Rf7 Ke5 40.Bb7 Ra7 41.Rc7 Nd6 42.f4?? Kf6?? 43.h5 Rb7 44.Rc6 Ke6 45.hg6 Rf7?? 46.Kg3 Rg7 47.f5 Kd7 48.Kg4?? Kc6–+ 49.Kg5 Ne4 50.Kh6 Rg8 51.f3 Nf6 52.Kg5 Nd7 53.f6 Kd6?? 54.f7+= Rg7 55.Kh6 (55.Kh6 Rf7 56.gf7=) 1–0. bratek55 (1620) – maudib, kurnik, 2011.

9.Nc3 Rc8 10.Qb3 c5 11.a3 Ng4 12.Nd5 Bb2 13.Qb2 Nge5 14.Ne5 Ne5 15.f4 Nd7 16.d4 Bd5 17.cd5 Qc7 18.e5 cd4 19.Qd4 (better is 19.Rac1!? Qb7 20.Qd4+=) 19...de5+= 20.fe5 Qe5 21.Qe5 Ne5 22.Rac1 f6 23.Ba6 Rc1 24.Rc1 Rd8 25.Bb7 Rd7 26.Bc6 Nc6 27.dc6 Rc7 28.Kf2 Kf7 29.Ke3 Ke6 30.Ke4? Kd6 31.b5+= e6 32.Rd1 Ke7 33.g4 h6 34.h4 g5 35.hg5 hg5 36.Rh1 Kd6 37.Rd1 Kc5 38.Rd7 Rc8-/+ 39.a4 a6 40.Re7 ab5–+ 41.ab5 Kb5 42.Re6 Rc6 43.Re8 Kc4 44.Kf5 b5 45.Re6 Re6 46.Ke6 b4 47.Kf6 b3 48.Kg5 b2 49.Kg6 b1Q 50.Kf6 Kd5 51.g5 Qf1 52.Kg7 Ke6 53.g6 Ke7 54.Kh8 Qh3 55.Kg7 Ke8 56.Kg8 Qb3 57.Kg7 Qb7 58.Kg8 Qe7 59.g7 Qg5 60.Kh7 Kf7 61.g8Q Qg8 62.Kh6 Qg6# 0–1. bratek55 (1640) – leon1205 (1650), kurnik, 2012.

9.Nc3 Rc8 10.Nd5 a6 11.Rc1 c6 12.Nf6 Nf6 13.Qb3 e5 14.Rfd1 Qe7 15.h3 Rfd8 16.a4 c5 17.Kh2 cb4 18.Qb4 Nd7 19.d4 (better is 19.Rb1!?=) 19...ed4 20.Nd4 Qe4 21.Bf3 Qe5 22.Kg1 Bf3 23.gf3 Qf4 24.Qb3 Nc5 25.Qe3 Qh4 26.f4 Na4 27.Ba1 Nc5 28.Qg3 Qg3 29.fg3 Ne4 30.Kg2 b5! 31.cb5 Rc1 32.Rc1 Bd4 33.Bd4 ab5 34.Kf3 Nd2 35.Ke2 Nb3 36.Rd1 Nd4 37.Rd4 Kf8 38.Kd3 Ke7 39.g4 Rc8 40.Rb4 Rc5 41.Rb1 Ke6 42.Kd4 Rc4 43.Ke3 b4 44.h4 Kd5 45.Rd1 Kc5 46.f5 d5 47.fg6 hg6 48.h5 gh5 49.gh5 Rh4 50.Rc1 Kb5 51.Rf1. bratek55 (1655) – roberthxx, kurnik, 2011.

9.Nc3 Rc8 10.Nd5 c6 11.Nf6 Nf6 12.Qb3 c5 13.a3 Nd7 14.Bg7 Kg7 15.Rfd1 Ne5 16.Ne5 de5 17.b5 e6 18.a4 f5 19.Bf3 Qd4 20.Rac1 Rf7 21.Qc3 Rd8 22.Qd4 Rd4 23.ef5 Bf3 24.gf3 ef5 25.Re1 Kf6 26.Rcd1 Rfd7 27.Re3 Rc4!! 28.a5 Rb4 29.ab6 ab6 30.Ra1 Rb5 31.Ra6 h5 32.h4 Rd4 33.Re1 Rd3 34.Kg2 c4 35.Rc1 c3 36.Ra8 Rc5 37.Rf8 Ke7 38.Rg8 Kf7 39.Rb8 b5 40.Ra1 c2 41.Ra7 Ke6 42.Rb6 Rd6 43.Rd6 Kd6 44.Ra1 c1Q (44...c1Q 45.Ra6 Rc6 46.Rc6 Kc6 47.f4 Qf4 48.Kh1 Qf3 49.Kg1 b4 50.Kf1 b3 51.Kg1 b2 52.Kh2 f4 53.Kg1 b1Q 54.Kh2 Qbh1) 0–1. bratek55 (1675) – kryniaci (1705), kurnik, 2011.

9.Nc3 e6 10.Qb3 Qe7 11.Rac1 a6 12.Rfd1 Nh5 13.g3 f5 14.Nh4 Ne5 (14...Nf4 15.Bf1 Bf6 16.Nf5 gf5 (worse is 16...ef5 17.gf4 c5 18.Bg2 fe4 19.de4=) 17.gf4 a5+=) 15.Bh5 gh5 16.d4 Ng4 (16...Nc6 17.c5 fe4 18.Ne4 Nb4 19.Nd6 cd6 20.Qb4 bc5 21.dc5 dc5+=) 17.d5 (better is 17.ef5 Bf6 18.Ng2+=) 17...fe4-/+ 18.Ne4 (18.Rf1!?-/+) 18...Bb2–+ 19.Qb2 e5?? (better is 19...ed5 20.cd5 Qe4 21.Rc7 Rf7 22.Rf7 Kf7–+) 20.Qd2+/- Rae8? (20...Bc8 21.c5 Bd7 22.f3+/-) 21.Rf1?? Bc8 22.Qg5 Qg5 23.Ng5 e4 24.h3 Ne5 25.Rfe1 Nd3-/+ 26.Rcd1 Ne1 27.Re1-/+ h6 28.Ne4= Bh3 29.Ng6 Bf5 30.Nf8+/- Kf8 31.f3 Be4 32.fe4 Ke7 33.Kf2 Rf8 34.Ke3 Rg8 35.Rg1 Kf6 36.Kf4 Rg4 37.Kf3 Ke5 38.Rh1 Rg5 39.a4 a5 40.ba5 ba5 41.Rc1 Kd4 42.Kf4 Rg4–+ 43.Kf3 Re4 44.Rh1 Re5 45.Rc1 Kc5 46.Kf4 Rg5 47.Rc2 Rg4 48.Kf3 Rc4 49.Re2 Ra4 50.Re7 Kd5 51.Rc7 Ra3 52.Kf4 a4 53.Rf7 Ra1 54.Rf5 Kd4 55.Rh5 d5 56.Rh6 a3 57.Ra6 a2 58.Kg4 Ke3 59.Ra3 Ke4 60.Ra4 d4 61.Kg5 Ke3 62.g4 d3 63.Ra8 d2 64.Re8 Kf3 65.Rf8 Kg3 66.Ra8 d1Q 67.Ra3 Kg2 68.Ra5 Qd2 69.Kh4 Qa5 70.g5 Qe5 71.Kh5 Rh1 72.Kg6 Kf3 (72...Kf3 73.Kf7 Rh7 74.Kg6 Qe4 75.Kf6 a1Q#; 72...Qe6 73.Kg7 a1Q 74.Kf8 Rf1#) 0–1. bratek55 (1715) – welcometo (1755), kurnik, 2012.

9.Nc3 c5

10.a3 a5 11.b5 e6 12.Qc2 Qe7 13.Rad1 Ne5 14.Ne5 de5 15.g3 Rfd8 16.a4 Rd7 17.f4 ef4 18.gf4 Ne8 19.e5 h5 20.Bf3 Rad8 21.Bb7 Rb7 22.Ne4 Rbd7 23.Rf3 Bh6 24.Bc1 Qh4 25.Qf2 Qf2 26.Kf2 Rd4 27.Be3?? Re4!–+ 28.h4?? Ng7 29.Rd2 Red4! 30.Bd4 Rd4 31.Kg3 Nf5 32.Kh3 Bf4 33.Rdf2 Be5 34.Rf1 Rh4 35.Kg2 Bd4 36.Re1 Rg4 37.Kh3 Kg7 38.Re4 Rg1 0–1. bratek55 (1710) – evergreen1 (1750), kurnik, 2011.

10.a3 cb4 11.ab4 a5 12.ba5 ba5 13.Na4 Bc6 14.Nd4 Ba4 15.Qa4 Nc5 16.Qc2 a4 17.Nb5 Nb3 18.Ra3 Qd7 19.h3 Rfc8 20.Qd1 Nc5 21.Qa1 e5 22.Nc3 Nh5 23.Bh5+/- gh5 24.Qd1 f5 25.Nd5 Qb7 26.Bc3 fe4 27.de4 Ne4 28.Qh5?? Nc3 29.Rc3= Rc4? 30.Rc4+– Qd5 31.Rg4 a3 32.Rg7?? Kg7+= 33.f4? Qd4 34.Kh1 ef4 35.Qg4 Kh8 36.Rf4 Qg7 37.Qg7?? Kg7–+ 38.Rf1 a2 39.Ra1 d5 40.Kg1 Kf6 41.Kf2 Ke5 42.Ke3 d4 43.Kd3 Ra3 44.Kd2 Ke4 45.Re1 Kf4 46.Rf1 Kg3 47.Ra1 Kg2 48.h4 Kf3 49.h5 Kg4 50.h6 Kg5 51.Kc2 Rh3 52.Kb2 Rh2 53.Kb3 Kh6 54.Rd1 Kg5 55.Rg1 Kf4 56.Rf1 Ke3 57.Re1 Kd2 58.Ra1 Ke3 59.Re1 Kf4 60.Rf1 Ke4 61.Ra1 1–0. bratek55 (1665) – roberthxx, kurnik, 2011.

10.a3 cb4 11.ab4 Ne5 12.Nd5?? (better is 12.b5+=) 12...Nd5-/+ 13.cd5? (better is 13.Be5 Be5 14.ed5 Ba1 15.Qa1–+) 13...Nf3–+ 14.Bf3 Bb2 15.Ra2 Bg7 16.h4 h5 17.g4 hg4 18.Bg4 Bc8 19.Ra4 Bg4 (better is 19...e6!? 20.de6 Qh4 21.Qf3–+) 20.Qg4 Qc8 21.Qg5 Kh7 22.h5 Bh6 23.Qg3 gh5 24.Qh4 Rg8 25.Kh2 Qg4 26.Qg4 Rg4 27.Rfa1 Rag8 28.Ra7 Rg2 29.Kh1 Rf2 30.Rg1–+ Bg5 31.Rb7 Bf4 32.Rg8 Kg8 33.Rb6 Rh2 34.Kg1 Be3 35.Kh2 Bb6 36.Kh3 Kg7 37.Kh4 Kg6 38.Kg3 Kg5 0–1. bratek55 (1745) – kolomyja23, kurnik, 2011.

10.a3 Rc8 11.Qb3 e6 12.Rfd1 Qe7 13.Rac1 d5 14.cd5 ed5 15.ed5 Nd5 16.Nd5 Bd5 (16...Qe2? 17.Bg7 Qe6 18.Bf8 Bd5 19.Qc3 Rf8 20.d4 cb4 21.ab4+–) 17.Qc2? (17.Qd5 Bb2 18.Rc2 Ba3+=) 17...Bh6 (17...cb4 18.Qd2 Bb2 19.Qb2 ba3 20.Qd2–+) 18.Rb1? (18.Qc3 f6 19.Rc2 cb4 20.Qc8 Rc8 21.Rc8 Nf8 22.Nd4 ba3 23.Ba1–+) 18...cb4–+ 19.ab4?? (better is 19.Qa4 Bc6 20.Qb4 Qe2 21.Qc3–+) 19...Rc2 20.Bf1 Bf3 21.gf3 Qg5 22.Kh1 Qf4 (22...Qf4 23.Bg2 Rfc8–+) 0–1. bratek55 (1675) – marasxo, kurnik, 2011.

10.a3 e6 11.Qb3 d5 12.ed5 ed5 13.cd5 Bd5? (better is 13...Nd5 14.d4 Nc3 15.Bc3 Re8=) 14.Nd5+– Ng4?? (better is 14...Nd5 15.Bg7 Nf4 16.Bf8 Ne2 17.Kh1 Qf8+–) 15.Bg7 Kg7 16.h3 Nge5 17.Qb2 f6 18.Ne5 Ne5 19.Nf4 Qd6 20.bc5 bc5 21.g3 Rab8 22.Qc3 g5 23.Ng2 Qd5 24.Rac1 Rfc8 25.Ne3 Qf7 26.Nf5 Kf8 27.f4 Rb3 28.Qa5 Nc6 29.Qa4 Qd5 30.fg5 Rcb8 31.Bf3 Qf5 32.Bc6 Qh3 33.Rf6 Kg7 34.Qh4 Qh4 35.gh4 Rd3 36.Rc5 Rd2 37.Rf2 Rd3 38.a4 Rb1 39.Kg2 Rbb3 40.Bf3 Rd4 41.Rc7 Kg6 42.h5 Kg5 43.Ra7 Rbb4 44.Rh7 Rd6 45.Rg7 Kh6 46.Rg6! Kh7 47.Rd6 Ra4 48.Kg3 (48.Kg3 Ra3 49.Rc2 Ra7 50.h6 Rf7 51.Be4 Kg8 52.Rc8 Rf8 53.h7 Kg7 54.Rf8 Kf8 55.h8Q Ke7 56.Qf6 Ke8 57.Rd8) 1–0. bratek55 (1640) – kkkpol, kurnik, 2011.

10.a3 Ng4 11.Qb3 Nge5 12.Nd5 Nf3 13.Bf3 Bb2 14.Qb2 Ne5 15.Be2 Bd5 16.cd5 cb4 17.ab4 Qb8? (17...Nd7 18.Ra4+/-) 18.f4 (better is 18.d4!? Nd7 19.Bb5+–) 18...Nd7+/- 19.Rfc1 Qb7 20.Bg4 Nf6 21.Bf3 Rfc8 22.Rc4 b5 23.Rc8 Rc8 24.h3 Qb6 25.Kh2 Qe3= 26.Qe2 Qf4 27.g3 Qe5 28.Ra7 Rc1 29.Qe3? Qc3?? 30.Re7 Rc2 31.Bg2 Qd2 32.Qd2+/- Rd2 33.Rb7 Rd3 34.Rb5 Rd2 35.Kg1 Nd7 0–1. bratek55 – leon1205 (1625), kurnik, 2012.

9.Nc3 e5

10.Nd5 c5 11.a3 Nd5 12.cd5 f5 13.Qb3 f4 14.Rac1 Qe7 15.h4 Rfc8 16.Ng5 h6 17.Ne6 Qh4 18.Bg4?? (better is 18.Qa4 Nf8 19.Ng7 Kg7 20.Rb1+=) 18...Qg4–+ 19.f3 Qh4 20.Qd1 cb4 21.ab4 Rc1 22.Bc1 Nf6 23.Bd2 Nh5 24.Be1 Ng3 25.Kf2 Nf1 26.Kf1 Qe7 27.Qa4 g5 28.Bf2 Bf6 29.g3 Kf7 30.gf4 ef4 31.d4 a5 32.b5 Rc8 33.Qd1 Qd7 34.Qe2 Rc3 35.Be1 Re3 36.Qg2 Qc8 37.Qh3 Kg6 38.Qf5= Kf7 39.Qh7 Ke8 40.Qh6?? Qc4–+ 41.Kg2 Qe2 (41...Qe2 42.Bf2 Qf3 43.Kg1 Qg4 44.Kf1 Qh3 45.Qh3 Rh3–+) 0–1. bratek55 (1715) – evergreen1 (1745), kurnik, 2011.

10.Nd5 c6 11.Ne3 a5 12.a3 Ne8 13.d4 Qe7 14.de5 Ne5 15.Ne5 de5 16.Qb3 Nc7 17.Rad1 ab4 18.ab4 Rfd8 19.g3 Ne6 20.Rd8 Qd8 21.Rd1 Nd4 22.Bd4 ed4 23.Ng2 Qe7 24.Bd3 c5 25.bc5 bc5 26.Rb1 Bc6 27.f3 h5 28.Qb6 Rc8 29.Nf4 Kh7 30.h4 Bh6 31.Nd5 Bd5 32.cd5 c4 33.Bf1 Be3 34.Kg2 c3 35.Bd3?? Qc7 36.Qc7+= Rc7 37.Bc2? d3 38.Bd3 c2 39.Bc2 Rc2 40.Kh1 Bf2 41.Kg2 Be1 42.Kh3 Bc3 43.g4?? hg4?? 44.Kg4+= Rd2 45.Rb7 Kg7 46.h5 gh5 47.Kh5 Be5 48.Kg4 Rg2 49.Kf5 Bh2 50.e5 Re2 51.f4 Rf2 52.e6 Rf4 53.Kg5 Rf1 54.e7?? Re1?? 55.d6?? Bd6–+ 56.Rd7 Be7 57.Kg4 Re4 58.Kf5 Ra4 59.Rb7?? Ra5 60.Kg4 Kf6 61.Kf3 Bd6 62.Rb6 Rf5 (62...Rf5 63.Ke4 Re5 64.Kf3 Ke6–+) 0–1. bratek55 (1705) – evergreen1 (1755), kurnik, 2011.

10.Nd5 c6 11.Ne3 c5 12.a3 Ne8 13.Nd5 Bd5 14.cd5 f5 15.Qb3 Kh8 16.Bc1 f4 17.h4 Bf6 18.g3 g5 19.hg5 Bg5 20.Kg2 Rg8 21.Rh1 fg3 22.fg3 Bc1+= 23.Rac1 Nef6 24.Rh4 Kg7 25.Rch1 Rh8 26.Ng5 Nf8 27.Bg4 h5 28.Bf5 Qe7 29.Qd1 Ng6? 30.Bg6 Kg6 31.Ne6 Ng4?? 32.Rg4 hg4 33.Qg4 (33.Qg4 Kf7 34.Qg7 Ke8 35.Qh8 Kd7 36.Qa8 Qe6 37.Qb7 Kd8 38.de6 cb4 39.Rh8) 1–0. bratek55 – mgkb (1610), kurnik, 2011.

10.Nd5 c6 11.Ne3 Nh5 12.g3 Ndf6 13.Qb3 Bc8 14.Rfd1 Ng4 15.Rac1 Ne3 16.fe3 Bh6 17.Kf2 f5?? (17...Nf6!? 18.Nh4 Ng4 19.Bg4 Bg4-/+) 18.ef5?? (better is 18.c5 d5 19.ed5 cd5 20.Ne5+–) 18...Bf5 (18...Rf5 19.c5 Kf8 20.cd6+/-) 19.c5 d5 20.cb6 Qb6 21.Rc5 Bg4 22.e4?? Rf7?? 23.Kg2= Raf8 24.Rf1 Be3 25.Rc2 d4?? 26.Ne5+– Kg7 27.Nf7 (27.Nf7 Nf6 28.Ne5 Be2 29.Re2+–; 27.Rf7 Kg8 28.Rf8 Kg7 29.Qg8 Kh6 30.Nf7) 1–0. bratek55 (1635) – mjacek (1655), kurnik, 2011.

10.Nd5 Nd5 11.cd5 c6 12.dc6 Bc6 13.Rc1 Bb7 14.Qb3 Nf6 15.Rc2 Nh5 16.g3 Kh8 17.Rfc1 Rc8 18.Rc8 Bc8 19.Qa4 Qe7 20.Nd2 Bh6 21.Qd1 Nf6 22.Rc2 Bh3 23.Bf1 Qe6 24.Nc4 Bf1 25.Qf1 Rc8 26.Ne3 Rc2-/+ 27.Nc2 Qa2 28.Qa1 Qa1 29.Ba1 Bd2 30.Kf1 Kg7 31.Ke2 Bc1 32.f3 Kf8 33.Kd1 Bh6+= 34.Na3 Ke7 35.Nb5 a6 36.Nc7 a5 37.ba5 ba5 38.Kc2 Kd7 39.Nb5 Kc6 40.Nc3 Be3 41.Kb3 Bg1 42.h3 Nh5 43.Ne2 Bf2 44.g4 Nf6 45.Ka4 Be1 46.Bc3 Bc3 47.Nc3 Kb6 48.g5 Nd7 49.Nd5 Kc5 50.Ka5 Kd4 51.Kb5 1–0. bratek55 (1635) – mjacek (1655), kurnik, 2011.

6.Be2 c5

7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bd7 11.c4 b6 12.0-0 Bg4 13.e5 de5 14.Ne5 Be2 15.Qe2 Qd6 16.Nd2 Nfd7 17.f4 Ne5 18.fe5 Qe6 19.Bb2 Nd7 20.Nf3 f5 21.Ng5 Ne5 22.Ne6 1–0. arti000 – valfanbal, kurnik, 2012.

7.bc5 Qa5 8.Qd2 Qc5 9.0-0 (9.Nc3 Bg4=) 9...Qc7 (better is 9...Ne4!? 10.Qc1 Nf6-/+) 10.Nc3 a6 11.a4 Nc6 12.Rab1 Be6 13.Ng5 Bg4? (13...Bd7 14.d4=) 14.f3?? (better is 14.Bg4 Ng4 15.Nd5+–) 14...Bd7= 15.f4 h6 16.Nf3 Qb6 17.Kh1 Ng4 18.h3 Nf6 19.Nd5+/- Qd8 20.Bf6 Bf6 21.Nb6 Rb8+= 22.d4 e5? 23.de5 de5? 24.Qd7 Kg7 25.Qd8 Rfd8 26.f5 Nd4 27.Nd4 Rd4 28.Bd3 Rbd8 29.fg6 fg6 30.Nc4 R4d7 31.Ne3 Rd4 32.Rb7 Kg8 33.Rf6 Ra4 34.Rg6 Kf8 35.Rh7 Re8 36.Rhh6 Ra1 37.Kh2 Re1 38.Nf5 Rb8 39.Rh8 Kf7 40.Rb8 (40.Rb8 Kg6 41.Rb6 Kf7 42.Ra6+–; 40.Rg7 Ke6 41.Rh6#) 1–0. bratek55 (1725) – tomgall (1780), kurnik, 2012.

7.bc5 dc5

8.0-0 b5 9.Nbd2 Bb7 10.Nb3 Qc7 11.Be5 Qc8 12.Rc1 c4 13.dc4 bc4 14.Na5 Be4 15.Bc4 Qc5 16.Bf6 ef6 17.Qd2 Bf3 18.gf3 Nc6 19.Nc6 Qc6 20.Qd5 Qc7 21.Rfd1 Rad8 22.Qe4 Rd1 23.Rd1 f5 24.Qd5 h5 25.Bb3 h4 26.h3 a5 27.Qc4 Qb7 28.Qd5 Qa7 29.a4 Kh7 30.Qc4 Qb7 31.Kg2 Qe7+= 32.Rd3 Qg5 33.Kf1 Qc1 34.Kg2 Qg5 35.Kf1 Bf6 36.Rd4?? Kg7?? 37.Rd7 Be7 38.Qe2 Bb4 39.Qe5 Qf6 40.Qf6 Kf6 41.f4 Bd2?? 42.Rd4 Bc3 43.Rd5 Rc8 44.Ke2 Bb4 45.Rd7 Re8 46.Kf3 Rf8 47.Rd5 Kg7 0–1. bratek55 (1655) – picus52, kurnik, 2011.

8.0-0 b6

9.c4 Bb7

10.Qb3 Nc6 11.Nc3 Ne8 12.Nd5 Nc7 13.Bg7 Kg7 14.Qc3 f6 15.d4 cd4 16.Nd4 Nd4 17.Qd4 Ne6 18.Qb2 Nc5 19.f3 Qd6 20.Rfd1 Ne6 21.Nf6?? Qc5–+ 22.Kh1 ef6 23.Rd7 Rf7 24.Rad1 Raf8 25.g3 Bc6 26.R7d6 g5?? 27.Re6+/- g4 28.Kg2 gf3= 29.Bf3 Re8 30.Re8 Be8 31.Bh5?? Re7?? 32.Be8+/- Re8 33.Rf1 Re6 34.Qe2 Qe5 35.Qg4 Kf7 36.Re1 Qb2 37.Kh3 Qd4 38.Qh5 Kg7 39.Qd5 (39.Qd5 Rd6 40.Qb7 Rd7 41.Qc8+=) 1–0. bratek55 (1630) – alexthegreat1 (1610), kurnik, 2011.

10.Nc3 Nc6 11.a3 e6 12.Qc2 Qd7 13.Rfd1 Rfd8 14.Nb5 a6 15.Nc3 Qe7 (15...Nd4 16.Nd4 cd4 17.Nb1=) 16.Rab1 Rd7 (better is 16...Nd4!? 17.Nd4 cd4= (worse is 17...Rd4 18.Na4+/-)) 17.Na4+/- Qd8 (better is 17...Rdd8!?+/-) 18.Bf6+– Bf6 19.Nb6 Nd4 20.Nd4 Bd4 21.Nd7 Qd7 22.Qb3 Bc6 23.Kf1 Qd6? 24.g3 h5 25.h4 e5 26.Qb6 Qd7 27.Rb3?? Ba4 28.Rdb1 Bb3 29.Rb3 Kg7 30.Qb7 Qb7 31.Rb7+= a5 32.a4 Bc3 33.f4 ef4 34.gf4 Rd8 35.Kf2 Rd6 36.e5 Rc6 37.Bf3 Rc8 38.Bd5 Rf8 39.Rb5 Bb4 40.Rb7 Kg8?? 41.Kf3 Bc3 42.Ke4 Be1 43.f5 gf5 44.Kf5 Bh4 45.Rb5 Bf2 46.Ra5 h4 47.Ra7 h3 48.a5 h2 49.a6 Rd8 50.Bg2 (50.Bg2 Rd3 51.Rc7+–; 50.Bf7 Kh8 51.Bd5 Rd5 52.Ra8 Kg7 53.Ra7 Kh6 54.cd5 h1Q–+) 1–0. bratek55 (1635) – samor25 (1625), kurnik, 2011.

10.Nc3 Nc6 11.Qb3 Na5 12.Qc2 Qc7 13.Nd5 Nd5 14.cd5 Rfe8 15.Bg7 Kg7 16.Rac1 e6 17.de6 Re6 18.Ng5 Re5 19.f4 Ree8 20.Qc3 f6 21.Nh3 Rad8 22.g4 Nc6 23.g5 Nd4 24.gf6 Kf7 25.Bg4 Bc8 26.Qc4? Ne6?? 27.f5 Rd4 28.fe6 Re6 29.Be6 Be6 30.Qc2 Bh3+/- 31.Rf3 Bg4 32.Rf2 Qd6 33.Qb3 Be6 34.Qa3 a5 35.Rc3 Qe5 36.Qb2 Rb4 37.Rb3?? Qb2?? 38.Rfb2?? Bb3–+ 39.Rb3?? Rb3 40.ab3 Kf6 41.Kf2 Ke5 42.Ke3 b5 43.h3?! a4 44.ba4 ba4 45.Kd2 c4! 46.dc4 Kd4 47.e5 Ke5 48.Kc3 a3 49.Kb3 Kd4 50.Ka3 Kc4 51.Kb2 Kd3 52.Kc1 Ke2 53.Kc2 Kf3 54.Kd3 h5 55.Kd4 Kg3 56.Ke5 Kh3 57.Kf6 Kg3 58.Kg6 h4 59.Kf5 h3 60.Ke4 h2 61.Kf5 h1Q 62.Ke5 Qh4 63.Kf5 Kf3 64.Ke5 Qf4 65.Kd5 Ke3 66.Kc5 Qd4 67.Kc6 Qe5 68.Kb6 Qd5 69.Kc7–+ Qe6 70.Kb7 Qd6 71.Ka8 Qd7 72.Kb8 Kd4 73.Ka8 Kc5 74.Kb8 Kb6 75.Ka8 Qd8 (75...Qe8) 0–1. bratek55 (1680) – mirek3211 (1665), kurnik, 2011.

10.Nc3 Nc6 11.Qb3 Nd7 12.Nd5 Nd4 13.Nd4 cd4 14.f4 Nc5 15.Qc2? (15.Qd1 Rc8=) 15...Rc8 (15...e6 16.Nb4 a5 17.a3 ab4 18.ab4 Ne4 19.Ra8 Ba8 20.de4–+) 16.Bf3 (16.Qd2 a5 17.f5 gf5 18.ef5 Bd5 19.cd5 Qd5-/+) 16...a5 (16...e6 17.Nb4 a5–+) 17.Ba3?? (better is 17.f5=) 17...e6–+ 18.Bc5 bc5 (better is 18...Rc5 19.Qb2 ed5 (19...Bd5?! 20.ed5 ed5 21.Bd5=) 20.ed5 b5 21.cb5 Qd6–+) 19.Rab1-/+ Ba8 (better is 19...Rb8!? 20.Nb6 Be4 21.Be4 Rb6-/+) 20.Nb6+= Rb8 21.Na4 Qe7 22.Rb3 Rb4 23.Rb4 ab4 24.a3 ba3 25.Qb3 Bc6 26.Bd1? Ra8–+ 27.Qa3 Qe8 28.Qc5 Ba4 29.Ba4 Ra4 30.e5 Qa8 31.Qd4 Qa7 32.Qa7 Ra7 33.Kf2 Bf8 34.Ke3 Bc5 35.d4 Ra3 36.Ke4 Bb4 37.Rb1? Bd2-/+ 38.d5 Re3 39.Kd4 ed5 40.cd5 Kf8? 41.d6 Ke8? 42.Rb8?? Kd7+/- 43.Rb7 Ke6?? 44.Re7+– Kf5 45.Rf7 Kg4 46.d7 (46.d7 Re2 47.d8Q Rg2 48.Qd7 Kf3 49.Qh3 Kf2 50.e6+–) 1–0. bratek55 (1605) – zito86 (1650), kurnik, 2011.

10.Nc3 Nc6 11.Nd5 e6 12.Nf6 Bf6 13.Bf6 Qf6 14.Qb3 Rfd8 15.Rfd1 Nd4 16.Nd4 Qd4 17.a4 Rd6 18.a5 Rad8 19.ab6 ab6 20.g3 h5 21.h4 e5 22.Ra7 Bc8 23.Ra8? Bg4?? 24.Rd8+= Rd8 25.Bg4 hg4 26.Qb6 Rd6 27.Qb8 Kg7 28.Qc8 Rf6 29.Rd2 Qc3 30.Re2 Qd3 31.Qg4 Qc4?? 32.h5 Qc1 33.Kg2 c4 34.hg6 Rg6 35.Qf5 Qa1 36.Rd2 Rh6 37.Qg5 Rg6 38.Qf5 Rh6 39.Qg5 Rg6 40.Qh5 c3?? 41.Qe5 Rf6 42.Qg5 Rg6= 43.Qe5 Rf6 44.Rd6 (44.Rd6 Qa8 45.Qf6 Kg8 46.Qg5 Kf8 47.Kh2+–) 1–0. bratek55 (1670) – jacekmpl (1730), kurnik, 2011.

10.Nc3 Nbd7 11.Qb3 Nb8 12.Nd5 Nc6 13.a3 e6 14.Ne3 Qd7 15.Rfd1 Rfd8 16.Ne5 Ne5 17.Be5 Qe7 18.Qc3 Ne8 19.Bg7 Ng7 20.f4 Qd7 21.Qf6 Qd4 22.Qd4 Rd4 23.Nc2 Rd7 24.Bf3 Rad8 25.Ne1 Ne8 26.a4 Nc7 27.a5 Na6 28.ab6 ab6 29.Be2 Nb4 30.Ra7 Bc6 31.Rb1?? Ra7–+ 0–1. bratek55 – alexthegreat1 (1645), kurnik, 2011.

8.0-0 Nc6

9.c4 a6 10.a4 Bd7 11.Nc3 Nd4 12.Nd4 cd4 13.Nd5 Nd5 14.cd5 e5 15.Qb3 b5 16.a5 Rc8 17.f4 ef4 18.Rf4 Qg5 19.Rf2 Be5 20.Raf1 Qe3 21.Ba3 Rc3 22.Qb4 Rfc8?? 23.Qe7+/- Ra3 24.Qe5?? Ra2+= 25.Qe7 Re2 26.Qf7 Kh8 27.Kh1?? Rf2–+ 28.Rf2 Qf2! 29.Qf2 Rc1 30.Qg1 Rg1 31.Kg1 b4 32.Kf2 b3 33.e5 b2 34.e6 Be8 35.d6 b1Q 36.d7 Qc2 37.Kf3 Qd3 38.Kf4 Qf5 39.Kg3–+ Bd7! 40.ed7 Qd7 41.Kf2 Qe6 42.g4 d3 (42...d3 43.h3 d2 44.g5 Qe1 45.Kg2 d1Q 46.h4 Qde2 47.Kh3 Qc3; 42...Qe3 43.Kg2 d3 44.h3 d2 45.h4 d1Q 46.g5 Qdg1) 0–1. bratek55 (1680) – roberthxx, kurnik, 2011.

9.c4 a6 10.Nc3 Bg4 11.Nd5 Bf3 12.Bf3 Nd4 13.Bd4 cd4 14.Rb1 Nd5 15.cd5 b5 16.Qb3 Qd6 17.Rbc1 Rfc8 18.g3 Rc3 19.Rc3 dc3 20.Qc2 b4 21.Bd1 Rc8 22.f4 a5 23.Bf3 Qc5 24.Kg2 Qe3 25.e5 a4 26.Qe2?? Qe2–+ 27.Be2 c2 28.Rc1 b3 29.ab3 ab3 30.d6 ed6 31.ed6 b2 32.d7 Rd8 33.Rc2 b1Q 34.Rc8 Qb7 35.Bf3 Qd7 36.Rd8 Qd8 37.Be4 Qd4 38.Kf3 f5 (38...f5 39.h4 fe4 40.Kg2 ed3 41.Kh2 Qf2 42.Kh3 d2 43.Kg4 d1Q 44.Kh3 Qff1 45.Kh2 Qde2) 0–1. bratek55 – roberth, kurnik, 2011.

9.c4 b6 10.Nc3 Bb7 11.Qb3 Nd4 12.Nd4 cd4 (12...Qd4? 13.Nd5 Nd5 14.Bd4+–) 13.Nd5 Nd5 14.cd5 e5 (14...Qd6 15.Qa4=) 15.Rac1 (better is 15.de6!? fe6 16.Qe6 Kh8 17.f4+/-) 15...Rc8 16.Ba3 Re8 17.Qa4 a6 18.g3 Qg5?? (better is 18...b5 19.Qb3 Bh6 20.Rc8 Bc8+=) 19.Qd7+– Qd2 20.Rc8 (20.Qb7?! Rb8 21.Qa6 Qe2+/-) 20...Rc8 21.Qb7 Rc2 (21...Rf8 22.Bf8 Bf8+–) 22.Qb8 (22.Qb8 Rc8 23.Qc8 Bf8 24.Qf8) 1–0. bratek55 (1685) – mirek3211 (1660), kurnik, 2011.

9.c4 b6 10.Nc3 Bg4 11.Nd5 Nd5 12.Bg7 Ne3 13.fe3 Kg7 14.h3 Bf3 15.Bf3 Ne5 16.Be2 Qd6 17.Qb3 Rad8 18.Rad1 Nc6 19.a3 Na5 20.Qc3 e5 21.Kh2 f6 22.g4 Qe6 23.Rf2 Rf7 24.Rdf1 Rdf8 25.h4 h6 26.Kg3 g5 27.h5 Qc6 28.Rf5 Qa4 29.Rb1 Rd7 30.Bd1 Qc6 31.Bc2 Rfd8 32.Rbf1 Rd6 33.R1f2 Qe8 34.Qb2 Qe7 35.Rd2?? Nc4!–+ 36.Qc3 Nd2 37.Qd2 c4! 38.Qb4 cd3 39.Bd1 d2 40.Rf2 R6d7 41.Qe7 Re7 42.Kf3 Rc7 43.Ke2 Rc3 44.Rf1 Ra3 45.Bc2 Rc3 46.Bd1 Rc1 47.Rh1 b5 48.Kf2 a5 49.Bf3 Rh1 50.Bh1 d1Q 51.Bf3 Rd2 (51...Rd2 52.Be2 Qe2 53.Kg3 Qe3) 0–1. bratek55 – szaman51 (1640), kurnik, 2011.

9.c4 Qc7 10.Nc3 a6 11.Nd5 Nd5 12.cd5 (better is 12.Bg7 Kg7 13.cd5+=) 12...Bb2-/+ 13.dc6 Ba1 14.cb7 Bb7 15.Qa1 Rad8 16.Rc1 Qd6 17.Qb2 Bc6 18.g3 (18.Qa3!?-/+) 18...Bb5–+ 19.Qc2 (better is 19.Rc3–+) 19...Bd3 20.Bd3 Qd3 21.Qd3 Rd3 22.Ne5 Rd4 23.f3 f6 24.Nc6 Rd2 25.Ne7 Kf7 26.Nd5 Ra2 27.Rc5 Rb8 28.Rc7 Ke6 29.Rc1 Rbb2 30.Nf4 Kd7 31.h4 Rc2 32.Rd1 Rd2 33.Rb1 a5 34.g4 a4 35.Rb7 Kc6 36.Rb1 a3 37.Nd5 Rab2 38.Rc1 Rdc2 39.Rd1?? a2–+ 40.Nb4 Rb4 (40...Rb4 41.e5 Rb1 42.Rf1 Rf1 43.Kf1 a1Q#) 0–1. bratek55 – okular59, kurnik, 2011.

9.c4 Qc7 10.Nc3 e5 11.Nd5 Nd5 12.cd5 Nd4 13.Nd4 ed4 14.f4 b6 15.e5 Bb7 16.Bf3 Rab8 17.d6 Qd7 18.Bb7 Rb7 19.Qf3 h5 20.a4 b5 21.a5 a6 22.Rac1+– Rc8 23.Qd5 Qc6 24.Qc6 Rc6+/- 25.h3 c4? 26.Bd4?? Rd6+= 27.ed6 Bd4 28.Kh2 c3 29.f5 b4 30.fg6 fg6 31.g4 hg4+= 32.hg4 b3 33.Kg3 b2 34.Rb1 c2 35.Kf4 cb1Q 36.Rb1 Rd7 0–1. bratek55 – okular59, kurnik, 2011.

9.c4 Nd4 10.Nd4 cd4 11.Nd2 b6 12.Nb3 e5 13.f4 ef4 14.Rf4 Qc7 (14...Qd6 15.Rf2=) 15.Rf1 (better is 15.Qf1!? Ne8 16.Bd4+/- (16.Nd4?! Qc5=)) 15...Nd7+= 16.Kh1 (16.Bd4? Bd4 17.Nd4 Qc5–+; 16.Nd4? Qc5 17.Qe1 Bd4 18.Bd4 Qd4 19.Qf2 Qf2 20.Rf2 Bb7–+) 16...Nc5 (better is 16...Qd6!?=) 17.Bd4+/- (worse is 17.Nd4 Qd7 18.e5 Be5+=) 17...Bd4 18.Nd4 Rd8 19.Nb5 Qc6 (19...Qe7 20.Nc3+/-) 20.Qc2 a6 21.Na3 Be6 22.e5 Bf5 23.Bf3 Qe6? 24.Ba8+/- Ra8 25.Qc3 Nd3 26.Rad1 Rd8 27.h3 Bh3?? 28.Rd3+– Bg2 29.Kg2 Qg4 30.Rg3 Qe2 31.Rf2 Qd1 32.Qf3 Qd7 33.c5! bc5 34.Nc4 1–0. bratek55 (1665) – marasxo, kurnik, 2011.

9.c4 Re8 10.Nc3 e5 11.Nd5 Nd5 12.cd5 Nd4 13.Bd4 ed4 14.Rb1 b6 15.a4 a6 16.Qb3 Rb8 17.Rfc1 Bd7 18.g3 Qc7 19.Nh4 Bf6 20.Ng2 Qd6 21.f4 Bg7 22.Rf1 b5 23.ab5 Rb5 24.Qd1 Reb8 25.Ra1 a5 26.Bg4 f5 27.Bf3 fe4 28.Be4 Bh3 29.Rf2 Rb4 30.Rfa2 c4 31.Ra5 c3 32.Ra6? Qc5?? 33.Rc6 Qb5 34.d6 Rb2 35.d7 Bf6 36.Rf6 Rd2?? 37.Qe1 Qb2 38.Bd5 Kh8 39.Re6 Rg2= 40.Kh1 Rh2 41.Kg1 Rg2 42.Kh1 Be6?? 43.Bg2 Bd7?? 44.Qe5 Kg8 45.Bd5 Kf8 46.Qf6 Ke8 47.Bf7 Kf8 48.Bg6 Kg8 49.Qf7 Kh8 50.Qh7 1–0. bratek55 (1755) – agnelo (1800), kurnik, 2011.

9.c4 Re8 10.Nc3 e5 11.Nd5 Nd5 12.cd5 Nd4 13.Nd4 ed4 14.Qb3 b6 15.f4 Rf8 16.e5 Bb7 17.Bf3 Rb8 18.Rae1 Bh6 19.g3 Bg7 20.a4 Bc8 21.d6 Bh3 22.Rf2 Qd7 23.Qb5 Qb5 24.ab5 Bf5 25.Rd2 Bd7 26.Bc6 Be6 27.Ra1 c4?? 28.dc4 Bc4 29.Bd4 f6 30.Ra7 fe5 31.Be5 Be5 32.fe5 Rf1 33.Kg2 Rbf8 34.d7 Re1 35.d8Q Bf1 36.Kg1 Bh3# 0–1. bratek55 (1625) – agimshala, kurnik, 2011.

9.c4 Bg4 10.Nc3 Bf3 11.Bf3 Nd4 12.Nd5 a6 13.Bd4 cd4 14.Rb1 Rb8 15.g3 e6 16.Nf4 Nd7 17.Qb3 Ne5 18.Bg2 b5 19.a4? (better is 19.cb5 Rb5 20.Qc2+=) 19...bc4–+ 20.Qb8 Qb8 21.Rb8 Rb8 22.dc4 Nc4 23.Rc1 Rb4 24.Bf1 Nd6 25.Rc6 Ne4 26.Ra6 Be5 27.Nd3= Rb2?? 28.Ne5 Nf2 29.Ra8 Kg7 30.a5 f6 31.Ra7+– Kh6 32.Nf7 Kh5 33.a6 Ra2 34.Nd6 e5?? 35.Rh7 Kg5 36.a7 Ng4 37.h4# 1–0. bratek55 (1650) – huremovic, kurnik, 2011.

9.Nbd2 b6 10.a4 Bb7 11.Nc4 Qc7 12.Qc1 Rfe8 13.g3 e5 14.h3 Rad8 15.Qe3 Ba6 16.Ncd2 Nd4 17.Nd4 cd4 18.Qf3 Qc2 19.Bc1 Re6 20.a5 b5 21.Bd1 Qc3 22.Nb3 b4 23.Nc5 Qc5 24.Bb3 Rc6 25.Bb2 Qd6 26.Rac1 Rdc8 27.g4 Rc1 28.Bc1 Rc3 29.Bc4 Bc4 30.dc4 Rf3 31.g5 Nh5 0–1. bratek55 (1730) – okena (1670), kurnik, 2011.

6.Be2 c6

7.0-0 a6 8.c4 b5 9.Nbd2 Bb7 10.Qb3 Nbd7 11.Rfd1 c5 12.a3 Qc7 13.Rac1 Qd8 14.cb5 ab5 15.e5 de5 16.Ne5 Ne5 17.Be5 Qd5 18.Qd5 Nd5 19.Bg7 Kg7 20.Rc5 Ra3 21.Rb5 Ba8 22.Nc4 Ra2 23.Bf3?? Nc3–+ 24.Re1?? Nb5 25.Ba8 Rfa8 26.g3 Ra1 (26...Ra1 27.Ra1 Ra1 28.Kg2 Nd4–+) 0–1. bratek55 – benekj23 (1670), kurnik, 2011.

7.0-0 a6 8.c4 e5 9.Nbd2 Bg4 10.Qb3 Nbd7 11.Rac1 Rc8 12.h3 Bf3 13.Nf3 Nh5 14.g3 Qe7 15.Nh2 Nhf6 16.Kg2 h5 17.f4 ef4 18.Rf4 (18.gf4!? Ne8 19.Nf3=) 18...Bh6+= 19.Rcf1 Bf4 20.gf4 d5! 21.e5 Nh7 22.Nf3 Qe6 23.Nd4= Qe7 24.Kh2 f6 25.Rg1 fe5+= 26.Rg6 Kh8 27.Re6?? Qh4–+ 28.Qd1 Qf4 29.Kh1 ed4 30.Bh5 Ndf6 31.Bg4 Ng4 32.hg4 Qf1 33.Qf1 Rf1 34.Kg2 Rf4 35.Kg3 Rcf8 36.cd5 cd5 37.Rd6 Ng5 38.Rd5 Rf3 39.Kh4 Ne6 (39...Ne6 40.Bd4 Kg8–+) 0–1. bratek55 – benekj23 (1735), kurnik, 2012.

7.0-0 Na6 8.a3 b5 9.Nbd2 c5 10.c3 cb4 11.ab4 Nc7 12.c4 bc4 13.Nc4 Ne6 14.Qb3 d5 15.ed5 Nd5 16.Bg7 Ng7 17.Na5 Be6 18.Qb2 Nf4 19.Rfd1 Ne2 20.Qe2 Bg4 21.h3 Bf3 22.Qf3 e6 23.Nc6 Qd7 24.Ne5 Qd6 25.d4 Nf5 26.Qc3 Rac8 27.Qb2 Rb8 28.b5 Qb6?? 29.Rdb1 Qd4 30.Qd4 Nd4 31.Ra5?? Rfd8 32.Kf1 Rb6 33.Ra7 Rb5 34.Rb5 Nb5 35.Rf7?? Nd4?? 36.Rd7 Rd7 37.Nd7 Kf7 38.Ke1 Ke7 39.Ne5 Kf6 40.f4 Nf5 41.g4 Ng3 42.Kf2 Ne4 43.Ke3 Nd6 44.Nd7 Ke7 45.Nc5 h6 46.h4 Kf6 47.Ne4 Ne4 48.Ke4 g5 49.hg5 hg5= 50.f5 Ke7 51.Ke5 ef5 52.Kf5 Kf7 53.Kg5 Kg7 54.Kh5 Kh7 55.Kg5 Kg7 56.Kf5 Kf7 57.Ke5 Kg6 58.Kf4 Kf6 59.g5 Kg6 60.Kg4 Kh7 61.Kf5 Kg7 62.g6 Kf8?? 63.Kf6+– Kg8 64.g7 Kh7 65.Kf7 Kh6 66.g8Q (66.g8Q Kh5 67.Qg3 Kh6 68.Qg6) 1–0. bratek55 (1725) – nebihu, kurnik, 2011.

7.0-0 b5 8.a4 Na6 9.c3 ba4 10.Ra4 Nc7 11.Nbd2 Bd7 12.Ra5 Nb5 13.Qb3 c5 14.c4 Nd4 15.Nd4 cd4 16.b5?? (better is 16.Rfa1 Qb6 17.Qa3+/-) 16...Qa5–+ 17.Nf3 e5 18.Ra1 Qc7 19.Ba3 Rfd8 20.h3 Bf8 21.g4 Rdb8 22.Qd1 a6 23.g5 Nh5 24.ba6 Ra6 25.Bb2 Ra1 26.Ba1 Bh3 27.Bf1 Bf1 28.Kf1 Nf4 29.Ne1 Qe7 30.Qg4 Qe6 31.Qf3 Be7 32.Ng2 Bg5 33.Nf4 Bf4 34.Kg2 h5 35.Qd1 Qg4 36.Qg4 hg4 37.c5 dc5 38.f3 gf3 39.Kf3 f5 40.ef5 gf5 41.Ke2 Rb1 42.Bd4 cd4 43.Kf3 Rf1 44.Ke2 Rh1 45.Kf2 Rh2 46.Kf3 Rh3 47.Ke2 Kf7 48.Kd1 Ke6 49.Ke2 Kd5 50.Kf2 Rd3 51.Ke2 e4 52.Ke1 Rd2 53.Kf1 Kc4 54.Ke1 Be3 55.Kf1 f4 56.Ke1 f3 57.Kf1 Rd1 0–1. bratek55 (1735) – unuklukin, kurnik, 2011.

7.0-0 b5 8.Nbd2 a5 9.a3 a4 10.c4 Na6 11.Rc1 Bb7 12.Qc2 Rc8 13.Qb1 e5 14.d4 ed4 15.Nd4 (better is 15.cb5!? cb5 16.Bb5+– (16.Nd4?! Nc7+/-)) 15...bc4+= 16.Nc4 d5 (16...c5 17.Nb5 Ne4 18.Bg7 Kg7+=) 17.Na5+/- Ba8?? (better is 17...Qb6 18.Nb7 Qb7 19.ed5 Nd5+/-) 18.e5 (18.Ba6!? Rc7 19.Ndc6 Bc6 20.Nc6 Qa8 21.Bf6 Rc6 22.Rc6 Qc6 23.Bg7 Kg7 24.Qb2 f6+–) 18...Ne4 19.Ba6 Nd2 20.Qd3 Nf1 21.Bc8 Nh2 22.Kh2 Qc8 23.Nac6 Qg4 24.Qf3 Qh4 25.Kg1 h5 26.Qd5 Bh6 27.Re1 Bd2 28.Rd1 Bf4 29.g3 Bg3 30.fg3 Qg3 31.Qg2 Qe5 32.Ne5 Bg2 33.Kg2 Rd8 34.Nec6 Rd4 1–0. bratek55 (1720) – unuklukin, kurnik, 2011.

7.0-0 b5 8.Nbd2 a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Nbd7 12.c4 e5 13.Rc1 Bb7 14.c5 dc5 15.bc5 Ng4? (better is 15...Nh5!?=) 16.h3+/- Nh6 17.d4 ed4 18.Bd4 Bd4 19.Qd4 f5 20.Ng5 (20.Bd1 Nf6 21.Bb3 Kh8+/-) 20...Qe7 (better is 20...Qg5!? 21.Qd7 Bc8 22.Qc6 Qd2 23.Qd5 Qd5 24.ed5 b4+=) 21.f4 fe4 22.Qe4 Qe4 23.Nde4 Nf5 24.Rd1 Nf6 25.Nf6 Rf6 26.Rd7 Bc8 27.Rd8 Rf8 28.Rd6?? Ng3?? 29.Bd1 Rf4 30.Bb3 Kg7 31.Rc6 Ne2 32.Kh2 Bf5 33.Ne6 Be6= 34.Re6 Nd4 35.Re3 Nb3 36.Rb3 b4 37.c6 Rc4 38.Rb4?? Rb4–+ 39.g4 Rc4 40.Kg3 Rc6 41.h4 Rc3 42.Kf4 Kf6 43.g5 Ke6 44.Kg4 Rc4 45.Kg3 Kf5 46.Kh3 Kf4 47.Kh2 Rc3 (47...Rc3 48.Kg2 Rc2 49.Kf1 Kg4 50.Ke1 Kh4 51.Kf1 Kg5 52.Ke1 Kf4 53.Kd1 h5 54.Kc2 h4 55.Kd2 Kf3 56.Ke1 h3 57.Kd2 g5 58.Kd3 g4 59.Kc4 g3 60.Kd5 h2 61.Kc6 Ke4 62.Kb6 g2 63.Kb7 h1Q 64.Kc7 Qh7 65.Kb6 g1Q 66.Kc6 Qha7 67.Kd6 Qgb6; 47...Kf3 48.Kg1 Rg4 49.Kf1 Rh4 50.Ke1 Ke3 51.Kd1 Kd3 52.Kc1 Kc3 53.Kb1 Rh1 54.Ka2 Re1 55.Ka3 Ra1) 0–1. bratek55 – krakenisko (1605), kurnik, 2011.

7.0-0 Qb6 8.a3 a5 9.c3 ab4 10.cb4 c5 11.Qb3 Be6 12.Qc2 cb4 13.ab4 Ra1 14.Ba1 Qb4 15.Nbd2 Qb6 16.Rb1 Qa6 17.Qb2 Nc6 (better is 17...Nh5!? 18.Qc1 Nf4+=) 18.Qb7= Qb7 19.Rb7 Ra8 20.Bb2 Ra2 21.h3 Ne4 22.de4 Bb2 23.Bc4 Bc4 24.Nc4 Bf6 25.g3 Nd4 26.Kg2 Nf3 27.Kf3 Rc2 28.Ne3 Rc3 29.Ke2 Bd4 30.Re7 Be3 31.fe3 Rc4 32.Kf3 Rc6 33.g4 Kf8 34.Ra7 h6 35.h4 Kg7 36.Kf4 Kf6 37.g5 hg5 38.hg5 Ke6 39.Ra8 Rc1 40.Re8 Kd7 41.Rf8 Ke7 42.Ra8 Rf1 43.Kg3 Ke6 44.Ra6 Ke5 45.Kg2 Rc1 46.Kf3 Rg1 47.Ra5 Ke6 48.Kf4 Rf1 49.Kg3 Rg1 50.Kf4 Rf1 51.Kg3 Re1 52.Kf2 Rc1-/+ 53.Ke2 Rc2 54.Kd3 (54.Kd3 Rc5 55.Ra8-/+). bratek55 – gadates, kurnik, 2011.

7.0-0 Qb6 8.a3 e5 9.c4 Nh5 10.Bc1 Nf4 11.Bf4 (11.Nc3 a5+=) 11...ef4 12.Ra2 (better is 12.d4!?=) 12...a5-/+ 13.b5 cb5 14.cb5 Be6 15.Rd2 Qb5 (15...Nd7!? 16.Ng5 Rac8-/+) 16.d4-/+ Qb6 17.Nc3 Nd7 (17...Rc8 18.Rc2 Qb3 19.Qd2+=) 18.Na4+= Qd8 19.Rb2 d5 20.e5 Qe7 21.Rb3 (21.Rb7 Qa3 22.Rc7 Rfc8+=) 21...g5 22.Ne1 Rab8 23.Nc3 f6 24.Bf3 fe5 25.Nd5 Qd8 26.de5 Ne5 27.Be4 b5 28.a4 b4 29.Nf3-/+ Nf3 30.Qf3 g4 31.Qd3 Kh8 32.Qd1 Qh4–+ 33.g3 Qh6 34.Rd3 f3 35.Kh1 Bg8 36.h4 Rbe8 37.Re1 Re5 38.Ree3 Qh5 39.Kg1 Qe8 40.Nc7 Qe7 41.Rd7 Qc5 42.Nb5? Qe3! 43.fe3 f2 44.Kf1 Re4 45.Rd3 b3 46.Nc3 Rb4 (46...Rb4 47.Nd5 Bd5 48.Rd5 b2–+) 0–1. Balaidea Romero,Rafael (1935) – Gimeno Diaz,Fernando, AEAC W/P/026, 2008.

7.0-0 Qc7 8.c4 e5 9.Nc3 Qe7 10.Qb3 Be6 11.Ng5 Bd7 12.Rac1 h6 13.Nf3 a5 14.a3 Be6 15.Qc2 Nbd7 16.d4 ed4 17.Nd4 d5 (17...ab4 A) worse is 18.Ne6 bc3 (18...fe6?! 19.ab4 Ne8 20.Ra1 Ra1 21.Ra1=) 19.Nf8 cb2 20.Nd7 bc1Q (worse is 20...Qd7 21.Rb1+=) 21.Nf6 Bf6 22.Rc1 Ra3-/+; B) 18.ab4 Ne5 19.Nd1=) 18.Ne6 fe6 19.cd5 cd5 20.ed5 ed5 21.Rfe1 Qd6? (better is 21...ab4 22.Bg4 Qd8 23.Be6 Kh7 24.ab4 Nb6+=) 22.Qg6 Qf4?? (22...Ne8 23.Qh5 ab4 24.ab4+/-) 23.g3 Qg5 24.Qg5 hg5+/- 25.Bb5 ab4 26.ab4 d4? 27.Bc4 Kh8 28.Nd5 Nd5 29.Bd5 Ra2?? 30.Ba2+– (30.Ba2 Ne5 31.Red1+–) 1–0. bratek55 (1680) – atlas51 (1675), kurnik, 2011.

7.0-0 Qc7 8.Nbd2 a5 9.a3 Nbd7 10.c4 e5 11.Qb3 a4 12.Qc2 Re8 13.Rac1 Nf8 14.Rfd1 Nh5 15.g3 Ne6 16.d4 ed4 17.c5 dc5 18.bc5 Rd8 (better is 18...Ra5!?-/+) 19.Nc4= Nc5 20.Nd4 Nf6 21.f3 Bh3 22.Ne3 Ne6 23.Ne6 Be6 24.Bc4 Bc4 25.Nc4 Nd7 26.Bg7 Kg7 27.Qc3 f6 28.Kg2 Ne5 29.Ne5 Qe5 30.Qe5 fe5 31.f4 Kf6 32.Kf3 Ke7 33.h4 ef4 34.gf4 Rd1 35.Rd1 Rd8 36.Rd8? Kd8–+ 37.e5 Ke7 38.Ke3 Kd7 39.Kd4 Ke6 40.Ke4? b6 41.Kd4 Kf5 42.Kc4 h6 43.Kb4 g5 44.hg5?? hg5 45.fg5 Ke5 46.Ka4 Kf5 47.Kb4 Kg5 48.a4 Kf6 49.a5 ba5 50.Ka5 Ke5 51.Kb4 Kd4 52.Kb3 Kd3 53.Kb2?? c5–+ 54.Kc1 Kc3 55.Kb1 Kd2 56.Kb2 c4 57.Kb1 c3 58.Ka2 c2 (58...c2 59.Ka3 c1Q 60.Kb4 Qc6 61.Ka5 Qb7 62.Ka4 Kc3 63.Ka5 Kc4 64.Ka4 Qb4) 0–1. bratek55 – brytan73 (1770), kurnik, 2011.

7.0-0 Qc7 8.Nbd2 e5 9.c4 Nbd7 10.Qb3 Re8 11.Rac1 Nf8 12.Rfd1 Ne6 13.g3 Nd7 14.Nf1 b6 15.Ne3 Bb7 16.a4 Nd4 17.Nd4 ed4 18.Nf1 c5 19.f4 f5 20.Bf3 fe4 21.de4 Be4 22.Be4 Re4 23.Re1 Rae8 24.Re4 Re4 25.Qf3 Nf6 26.Nd2 Re3 27.Qa8 Kf7 28.b5 Qe7 29.Nf1? Re2 30.Ba1 Ne4 31.Qd5 Kf8 32.a5 Nf2 33.Qa8 Kf7 34.Qd5 Ke8 35.Qa8-/+ Qd8 36.Qd8? Kd8–+ 37.ab6 Nh3 38.Kh1 ab6 39.g4 Nf4 40.Ng3 Ra2 41.Rf1 g5 42.Ne4 h6 43.Nd6 Kd7 44.Nf5 Bf8 45.h4 Re2 46.hg5 hg5 47.Ng3 Ra2 48.Ne4 Be7 49.Re1 Bd8 50.Ng3 Nd3 51.Rf1 Nf2 52.Kg1 Ng4 53.Ne4 Ne3 54.Rf7 Ke6 (54...Ke6 55.Bd4 cd4–+) 0–1. bratek55 – brytan73 (1770), kurnik, 2011.

7.0-0 e5 8.c4 Qc7 9.Qb3 Nbd7 10.Nbd2 Re8 11.Rac1 c5 12.a3 b6 13.h3 Nf8 14.b5 Ne6 15.g3 h6 16.Kg2 Bd7 17.Nh4 Qc8 18.Rh1 Ng5 19.g4 Ne6 20.Bf3 Qd8 21.Kg3 Nd4 22.Bd4 ed4 23.Bg2?? Nh7 24.f4+= f5?? 25.ef5+/- gf5 26.Ba8 Qa8 27.Rce1 Nf6 28.g5 Nh5+= 29.Kf2 Nf4-/+ 30.Ndf3? Re1 31.Re1-/+ Nh3 32.Kg3?? Ng5 33.Ng5 hg5 34.Nf3? Bf6 35.Qc2? Kg7 36.Qh2? Qf8 37.Qh5 Qf7–+ 38.Qf7 Kf7 39.a4 Kg6 40.a5 f4 41.Kf2 g4 42.Ng1 Kg5 43.ab6 ab6 44.Ra1 Kf5 45.Ra6 f3 46.Rb6 Bh4 47.Kf1 Ke6 48.Rb8 Bg5?? 49.Rg8+= Kf6 50.Rd8?? Bf5–+ 51.Rf8 Kg6 (51...Kg6 52.Nf3 Bd3 53.Kf2 gf3–+) 0–1. bratek55 – brytan73 (1745), kurnik, 2011.

7.0-0 e5 8.c4 Nbd7 9.Nbd2 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 Qb6 13.Bc3 Nh5 14.g3 Re8 15.Qa5 h6 16.Qb6 Nb6 17.Ra1 Bg4 18.Ra7 Re7 19.Kg2 f5 (better is 19...d5!?+/-) 20.h3+– Bf3 21.Bf3 (21.Kf3?! d5+/-) 21...Nf6 22.c5 Kf7?? 23.cb6+– d5 24.ed5 cd5 25.b5 Ke6 26.Bb4 Rd7 27.Nb3 e4 28.Nc5 Kd6 29.Nd7 Kd7 30.Rb7 (30.Rb7 Kc8 31.Rg7 ef3 32.Kf3+–) 1–0. bratek55 (1725) – lakyluciano, kurnik, 2011.

7.0-0 e5 8.c4 Qe7 9.Nbd2 Rd8 10.Qb3 Bg4 11.h3 Bf3 12.Nf3 Nbd7 13.a4 a6 14.Kh2 Nh5 15.g3 Kh8 16.Nh4 Nhf6 17.Ng2 Nf8 18.Ne3 Ne6 19.Rad1 Nd4 20.Bd4 ed4 21.Ng2 c5 22.f4 Nd7 23.Bg4 f5? 24.ef5+– gf5 25.Bf5 Rg8 26.Rde1 Qd8 27.Re6 Nf6 28.Rfe1 b6 29.g4 Re8 30.g5 Re6 31.Re6 Nh5 32.bc5?? bc5?? 33.Qb7+– Rb8 34.Qd5 Rb2? 35.Rd6 Qe7 36.Rd8 Bf8 37.Rd7 Nf4 38.Re7 Nd5 39.Re8 Nf4? 40.Rf8?? Kg7+= (40...Kg7 41.Kg3 Ne2 42.Kg4 Kf8 43.Bh7 Rb4=). bratek55 (1615) – miro59, kurnik, 2011.

7.0-0 Bg4 8.Nbd2 Na6 9.a3 Nc7 10.c4 a5 11.Qb3 ab4 12.ab4 Ra1 13.Ra1 b5 14.h3 Bf3 15.Nf3 (worse is 15.gf3 Nh5+=) 15...bc4 16.Qc4 Qd7 17.Rc1 Ne6 18.Qc6 Qc6 19.Rc6 Nd7 20.Bg7 Kg7 21.g3 (better is 21.d4+–) 21...Rb8+= 22.Rc4 Nb6 23.Rc6 Na4 24.e5 Rb4 25.ed6+/- ed6 26.Rd6 Nc3 27.Bf1 Rb1 28.Kg2 h5 29.d4 Ne4 30.Rd7 Rd1? 31.Bc4 Nd2?? 32.Nd2 Rd2 33.Be6 1–0. bratek55 (1665) – sexvmeste1 (1620), kurnik, 2011.

7.Nbd2 e5 8.h3 h6 9.a4 Be6 10.0-0 Qd7 11.Kh2 Na6 12.c3 Nc7 13.d4 ed4 14.cd4 Nh5 15.e5 de5 16.Ne5 Qd6 17.Bh5 gh5 18.Qh5? (18.Qc2 Rfe8=) 18...f6 (better is 18...Qb4 19.Ndc4 Bc4–+) 19.f4?? (better is 19.Ne4 Qd5 20.Nc3 Qd4 21.Ng6+=) 19...fe5–+ 20.fe5 Qe7 (better is 20...Qb4 21.Ba3 Qd2–+) 21.Ne4 Nd5 22.b5 cb5 23.Rf8 Qf8 24.ab5 Qf4 25.Ng3 Qg5 26.Qf3 Rf8 27.Qd3 Nf4 28.Qe3 a6! 29.ba6 ba6 30.Ra6 Nd5?? 31.Qg5+– hg5 32.Re6 Rf2 33.Re8 Kf7 34.Rd8 Nf4+= 35.Rd7 Kg6 36.Rd6 Kh7 37.Ne4 Rg2 38.Kh1 Rb2 39.Ng5 Kg8 40.Rd8 Bf8 41.Ne6?? Ne6–+ 42.Re8 (42.Re8 Nd4 43.Kg1–+). horacyad2010 – kukix25 (1660), kurnik, 2011.

7.0-0 Nbd7

8.c4 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 b5 12.Nbd2 bc4 13.Nc4 d5 14.ed5 cd5 15.Nce5 Ne5 16.Ne5 Qd6 17.d4 Qb4 18.Bd3 Ne4 19.Be4 de4 20.Qb1 Qd2 21.Rd1 Qf4 22.g3 Qg5 23.Re1 Bf5 24.h4 Qh5 25.Qd1 Qh6 26.Bc3 Be5 27.de5 e6 28.Bb4 Re8 29.Qd7 Ra8 30.Bd2 Qf8+= 31.Bg5 h6 32.Bf6 Kh7 33.Kg2 Qg8 34.Rc1 g5 35.Rc7 Bg6 36.hg5 hg5 37.Bg5 Ra2?? 38.Rc1 Bf5?? 39.Rh1+– Kg6 40.Qe7 Qg7 41.Rh6 Qh6 42.Bh6 Kh6+– 43.Qf6 Kh7 44.Qf7 Kh6 45.Qf8 Kg6 46.Qg8 Kh5 47.Qh8 Kg6 48.Qd8 e3 49.Qe8 Kg5 50.Qg8 Kh5 51.Qf7 Kg5? 52.Qf6 Kg4?? 53.Qh4 1–0. bratek55 – nebihu, kurnik, 2011.

8.c4 a6 9.Nbd2 b5 10.Qb3 Bb7 11.Rac1 bc4 12.Nc4 c5 13.Na5 Rb8 14.Nb7 Rb7 15.a3 a5 16.Bc3 ab4 17.ab4 cb4 18.Bb2 Nc5 19.Qc2 b3 20.Qc4 Qa5 21.Ra1 Qb6 22.Rfc1 Rc8?? 23.d4 Nfe4 24.dc5 Rc5 25.Ra8 Rb8 26.Rb8 Qb8 27.Qe4 Bb2 28.Rb1 Rc1 29.Rc1 Bc1 30.Bd3 e6 31.h4 b2 32.Bb1 d5 33.Qc2 Qf4 34.h5 Kg7 35.Qc3 Qf6 36.Qf6? Kf6–+ 37.hg6 hg6 38.Kf1 Ke7 39.Ke2 f5 40.Ne5 Kf6 41.Nd3 e5 42.Kd1 e4 43.Nc1 bc1Q 44.Kc1 d4 45.Kd2 Ke5 46.Ba2 f4 47.Bf7 g5 48.Bh5 Kf5 49.Be8 g4 50.Ke2 Ke5 51.Bh5 1–0. bratek55 (1690) – unuklukin, kurnik, 2011.

8.c4 e5 9.Nbd2 Qc7 10.Qb3 Nh5 11.g3 Ndf6 12.d4 Re8 13.de5 de5 14.c5 Bh3 15.Rfd1 Rad8 16.Bc4 Bh6 17.a4 Ng7 18.Re1?? (better is 18.Qc3+=) 18...Bd2–+ (18...Rd2?! 19.Bc1 Red8 20.Qc3 Ne4 21.Re4 Rd1 22.Re1 Re1 23.Qe1 Bc1 24.Rc1+=) 19.Nd2 Rd2 20.Bc1 Rd4 21.f3 Be6 22.Be6 Re6 23.Bb2 Rd8 24.h4 Ngh5 25.Kg2 Re7 26.Re2 Red7 27.Bc1 Rd3 28.Qc2 Qd7 29.Bg5 Kg7 30.Qc1 Qd4 31.Bh6 Kg8 32.Qg5 Qa1 (32...Qa1 33.Qc1 Qd4–+) 0–1. bratek55 (1665) – tepid (1615), kurnik, 2011.

8.c4 e5 9.Nbd2 Qe7 10.Qb3 h6 11.Rac1 Kh7 12.Rfd1 a6 13.Nf1 Ng8 14.d4 f6 (14...ed4 15.Bd4 Bd4 16.Rd4=) 15.de5 de5 16.Ne3 f5 17.ef5 gf5 18.c5 Ndf6? (18...f4 19.Nc4 e4 20.Bg7 Kg7 21.Nd4+/-) 19.Rd6 (better is 19.Be5 Ne4 20.Bg7 Kg7 21.Nd4+–) 19...Ne4+= 20.Rd3 Be6 21.Nc4 Ng5 22.Rcd1 Nf3 23.gf3 e4 24.Rd6 Rad8 25.Bg7 Kg7 26.Kh1 Nf6+= 27.Qc3 Kf7? 28.Qe5 Nd5?? 29.fe4+– fe4 30.Bh5 Kg8 31.Re6 Qh7 32.Rg6 Kf7 33.Rh6 (33.Rh6 Kg8 34.Rg1 Qg6 35.Rhg6 Kh7 36.Qg7#; 33.Qe6#) 1–0. bratek55 (1645) – hits, kurnik, 2012.

8.c4 e5 9.Nbd2 Qe7 10.Qb3 Kh8 11.h3 Nh5 12.g3 f5 13.Nh4 (13.ef5 Rf5 14.g4 Nf4 15.gf5 Ne2 16.Kh2 Nf8+=) 13...f4 (better is 13...Nf4!? 14.gf4 Qh4-/+) 14.Bh5= gh5 15.Qd1 Nf6 16.Kh2 Bd7 17.gf4?? (17.Ndf3 fg3 18.fg3 b5=) 17...ef4?? (better is 17...Ng4 18.Kg2 Qh4–+) 18.Rg1?? (18.Nhf3 Ng4 19.hg4 Bb2-/+) 18...Rg8 (better is 18...Ng4! 19.Rg4 Bb2–+ (19...Bg4?! 20.Bg7 Kg7 21.Ndf3-/+)) 19.Ndf3= Be6 20.Ng5?? (20.Qd2 Ng4 21.hg4 hg4 22.Bg7 Rg7 23.Qf4 Rf8+=) 20...Nd7?? (20...Ng4 21.hg4 Bb2 22.Nhf3 hg4 23.Rb1 gf3 24.Nf3–+) 21.Ne6?? Qe6?? 22.Rg7 Rg7 23.Qh5 Nf6 24.Bf6?? Qf6–+ 25.Nf5?? Rg6 26.Rg1?? Rag8 27.Rg4+= Rg4 28.hg4 Qg6 29.Qg6 hg6? 30.Kh3?? gf5–+ 31.ef5 Kg7 32.Kh4? Kf6 33.d4 b6 34.a4 a6 35.c5 dc5 36.dc5 b5 37.a5 Rg7 38.Kh3–+ Kg5 39.f3 Rd7 40.Kg2 Rd4 (40...Rd4 41.Kh2 Rb4 42.Kg1 Rc4 43.f6 Kf6 (43...Rc5? 44.f7+–) 44.Kf2 Rc2 45.Kg1 b4 46.Kf1 b3 47.g5 Kg5 48.Ke1 b2 49.Kd1 b1Q) 0–1. bratek55 – hits, kurnik, 2011.

8.Nbd2 a5 9.a3 c5 10.b5 Nb6 11.a4 e5 12.c4 Nbd7 13.Nb1 b6 14.Nc3 Re8 15.Bc1 Nf8 16.Bg5 Ne6 17.Bf6 Bf6 18.Nd5 Bg7 19.Rb1 Rb8 20.Qd2 h5 21.h4 Nc7 22.Nc7 Qc7 23.Ne1 f6 24.Nc2 Qf7 25.Qd1 Bh6 26.Ne3 Be6 27.Kh2 Kf8 28.Nf5 gf5-/+ 29.Bh5 Qh7 30.Be8 Re8 31.f3?? Bf4–+ (31...Bf4 32.Kg1 Qh4–+) 0–1. Kappel,Ray – Istomin,Sergei (2180), WC–2015–P–00010, 2011.

8.Nbd2 Qc7 9.d4 e5 10.de5 de5 11.a3 Rd8 12.Qe1 Re8 13.h3 (13.Rd1 a5=) 13...Nh5 (13...Rd8 14.Bd3=) 14.Ng5 (14.Rd1 Nf4+=) 14...Nhf6 (14...Qd8 15.Bh5 Qg5 16.Bg4=) 15.Bc4+= Re7 16.Rc1 a5 17.c3 Nb6 18.Be2 h6 19.Ngf3 Nh5 20.Nh2 (20.Nb3!?=) 20...Nf4+= 21.Rc2 Be6 22.c4 ab4 23.ab4 Ra4 24.c5 Nd7 25.Nc4 (25.Bc3 Re8+=) 25...Ne2-/+ 26.Qe2 Rb4 27.Nd6 b6 28.Ba3 Ra4 (28...Rb3 29.cb6 Nb6 30.Rfc1-/+) 29.Qe3? (better is 29.cb6!? Nb6 30.Nb5 cb5 31.Rc7 Rc7 32.Qb5 Ra3 33.Qb6=) 29...bc5-/+ 30.Bc5 Nc5 31.Qc5 Rd7 (31...Rd4 32.Nb5 cb5 33.Qc7 Rc7 34.Rc7 Re4 35.Rb1-/+) 32.Qc6 (32.Ne8!? Qa7 33.Qc6-/+) 32...Qc6-/+ 33.Rc6 Bf8 34.Nb5 (34.Ne8 Rd8 35.Ng4 Be7 (worse is 35...Re8 36.Nf6 Kh8 37.Ne8+=) 36.Nef6 Kg7-/+) 34...Bc4 35.Nc3 Bf1 36.Na4? Bb5 (36...Bb5 37.Rc1 Ba4–+) 0–1. Sapareva,Magdalena (1710) – Mitrev,Kiril (2125), 3rd Bulgaria, Memorial Hristo Gerenski, 2010.

8.Nbd2 e5 9.c4 Qe7 10.Nb3 a6 11.Qc2 Ne8 12.d4 Ndf6 13.de5 de5 14.Be5 Ne4 15.Bg7 Ng7 16.Rfe1 Nd6 17.c5 Ndf5 18.Ba6! Qf6 19.Bc4 Be6 20.Be6 Ne6 21.Rad1 Rfd8 22.Rd8 Rd8 23.h3 Ned4 24.Nbd4 Nd4 25.Nd4 Rd4 26.a3 Qd8 27.Re3 Rd1 28.Kh2 Qc7 29.g3 Rd5 30.Qe4 Qd7 31.Qe8 Kg7 32.Qd7 Rd7 33.g4 h6 34.Kg3 Rd4 35.h4 Rd7 36.f4 Kf6 37.g5 hg5 38.hg5 Kg7 39.Kg4 Kf8 40.a4 Rd4 41.Rb3 Ke7 42.Kf3 Ke6 43.Ke3 Rc4 44.b5 Kf5 45.bc6 bc6 46.Rb7 Re4 47.Kd3 Ra4 48.Rf7 Kg4 49.Rf6 Rf4 50.Rg6 Rf5 51.Rc6 Rg5 52.Kd4 Kf4 53.Re6 Rg7 54.Kd5 Rd7 55.Rd6 Rc7 56.c6 Kf5 57.Rd7 Rc8 58.Kd6 Kf6 59.c7 1–0. bratek55 – hits, kurnik, 2011.

8.Nbd2 e5 9.c4 Nh5 10.g3 Nhf6 11.d4 Re8 12.d5 cd5 13.cd5 Nb6 14.Qb3 Bh3 15.Rfc1 Nh5 16.Bb5 Rf8 17.a4 a6 18.Be2 f5 19.a5 Nd7 20.b5 f4 21.Ba3+= ab5? 22.Qb5?? Ra5= 23.Qb7 Nc5 24.Bc5 Rc5 25.Rc5 dc5 26.Ra7 fg3 27.hg3 Qb8 28.Ng5 Qb7 29.Rb7 h6?? 30.Nh3+– Nf6 31.Bc4 Kh8 32.Rc7 Ng4 33.Rc5 g5 34.d6 Nf6 35.Rc7 g4 36.Ng5! hg5 37.d7 Nd7 38.Rd7 Rc8 39.Be6 Rb8 40.Bf5 Kg8 41.Bg4 Rb2 42.Nf3 Rb1 43.Kg2 Rb3 44.Ng5 Rb4 45.Be6 Kf8 46.Bd5 Bh6 47.Ne6 Ke8 48.Rh7 Bc1 49.Nc7 Kd8 50.Ne6 Kc8?? 51.g4 Rb2 52.g5 Be3 53.g6 Bf2 54.Kf3 Bb6 55.g7 Rf2 56.Kg4 Rg2+– 57.Kf5 Rf2 58.Ke5 Bc7 59.Nc7 Kc7 60.g8Q Kb6 61.Qb8 Kc5 62.Qa7 (62.Qa7 Kb4 63.Qd4 Kb5 64.Rb7 Ka5 65.Qa7; 62.Rc7) 1–0. bratek55 (1625) – benekj23 (1745), kurnik, 2011.

6.Be2 Nc6

7.0-0 Nb4 8.Nbd2 b6 9.Nd4 Bb7 10.Bf3 Rb8 11.a3 Nc6 12.Nc6 Bc6 13.e5 Bf3 14.Qf3 de5 15.Be5 Rc8 16.d4 c5 17.c3 cd4 18.cd4 Qd5 19.Qg3 Nh5 20.Rfd1 Be5 21.de5 Rc2 22.Qe3 Qc5 23.Qc5 Rc5 24.Nf3 Rfc8 25.g4 Ng7 26.Rd7 R5c7 27.Rad1 e6 28.h4 Kf8 29.Ng5 h6 30.Nf7 h5 31.Nd6 Rd7 32.Nc8 Rd1 33.Kg2 Ra1 34.Nd6 Ra3 35.Ne4 hg4 36.Nf6 Ra5 37.Kg3 Re5 38.Kg4 Nh5 39.Nd7 Ke7 40.Ne5 Kf6 41.Nd7 Ke7 42.Ne5 a5 43.Ng6 Kf7 44.Kh5 a4 45.Ne5 Kf6 46.Nc4 b5 47.Na3 b4 48.Nb1 a3 49.Nd2 a2 50.Nb3 e5 51.Kh6 Kf5 52.Kh7 Kf6 53.Kg8 Kg6 54.Kf8 Kh5 55.Ke7 Kh4 56.Ke6 Kg4 57.Ke5 Kf3 58.Kd4 Kf2 59.Kc4 Ke2 60.Kb4 Kd3 61.Ka3 Kc2 62.Ka2 ½–½. Adjailton (1840) – claudio74 (1610), lichess.org, 2020.

7.b5 Na5 8.a4 c6 9.Bc3 e6 10.Qd2 b6 11.Ba5 ba5 12.bc6 Qb6 13.c3 Qc6 14.0-0 Bd7 15.Nd4 Qb7 16.Bf3 e5 17.Ne2 Qb3 18.d4 Ba4 19.de5 de5 20.Ra3 Qc4 21.Ng3 Bb5 22.Be2 Qc5 23.c4 Bc6 24.Ra5 Qd4 25.Qd4 ed4 26.Bd3 Rfe8 27.f3 Nd7 28.Ne2 a6 29.Nd2 Ne5 30.Bb1 d3 31.Nd4 Bd7 32.f4 Nc6 33.Nc6 Bc6 34.Bd3 Red8 35.Rf3 Bc3 36.Ra2 Bd2 37.Rd2 a5 38.Kf2 Be4 39.Be4 Rd2 40.Ke3 Rg2 41.Ba8 Rh2 42.Bd5 a4 43.Kd4 a3 44.Ra3 h5 45.Ra8 Kg7 46.Ra7 h4 47.Rf7 Kh6 1–0. Adjailton (1860) – OliverLickerish (1790), lichess.org, 2020.

7.b5 Nb4 8.a3 c5 9.ab4 cb4 10.0-0 Be6 11.Nbd2 Rc8 12.Nc4 d5 13.ed5 Bd5 14.Qd2 Bc4 15.Qb4 Be6 16.c4 b6 17.Ra7 Ra8 18.Ra8 Qa8 19.Qe7 Re8 20.Qd6 Qa2 21.Bf6 Bf6 22.Bd1 Bf5 23.Qf6 Bd3 24.Ne5 Bf1 25.Qf7 Kh8 26.Qe8 Kg7 27.Qf7 Kh6 28.Kf1 Qd2 29.Qf8 Kg5 30.f4 Kh4 31.Nf3 1–0. Adjailton (1850) – MustaphaBrooks (1715), lichess.org, 2019.

7.b5 Nb8

8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.c4 Nc5 13.Nc3 Bd7 14.Bb2 Ne8 15.Qc2 e5 16.Nd5 f5 17.Ra1 Nf6 18.Ng5?? (18.Nc3 c6=) 18...h6?? (better is 18...Nd5 19.Nh7 Nb4–+ (19...Kh7?! 20.ed5 Qg5 21.Ra7–+)) 19.Nf6 Qf6 20.Nf3 f4 21.d4 ed4 22.Bd4 Qe7 23.Bg7 Qg7 24.Rd1 Re8 25.Bd3 g5 26.h3 h5 27.Nh2 g4 28.hg4 hg4 29.Bf1 Ne4 30.Qd3? Kh8 31.Qd4 Re5 32.Bd3 Nf2 33.Qf2= g3 34.Qf4 gh2 35.Kh1 Rg5 36.Be4 Rg4 37.Qh2 Kg8 38.Bd5 Kf8 39.Rf1 Ke8 40.Qh5 Kd8 0–1. bratek55 (1660) – grocikmat (1660), kurnik, 2011.

8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nbd2 b6 13.c4 Bb7 14.Nd4 Ne8 15.N2b3 Nb8 16.Nf3 c5 17.Bg7 Ng7 18.Qc2 Nd7 19.Ra1 Qc7 20.Ra7 Ra8 21.Qa2 Qb8 22.Ra8 Qa8 23.Qa8 Ba8 24.Nbd2 f5 25.Ng5 h6 26.Nh3 fe4 27.Ne4 Be4 28.de4 g5 29.f4 Ne6 30.fg5 hg5 31.Bg4 Ndf8 32.Kf2 Kg7 33.Ke3 Kf6 34.Nf2 Ng6 35.g3 Ne5 36.Be2 Nd4 37.Bf1 Ndf3 38.h3 Nd4 39.h4 gh4 40.gh4 Nc2 41.Kf4 Na3 42.Ng4 Ng4 43.Kg4 e5 44.h5 Nb1 45.h6 Nd2-/+ 46.Bd3 Kg6 47.h7 Kh7 48.Kf5 Kh6 49.Ke6 Kg5 50.Kd6 Kf4 51.Kc6 Ne4?? 52.Kb6+– Nf2 53.Bf1 Ng4 54.Kc5 Ne3 55.Be2 Kg3 56.b6 Kf2 57.Bd3 Nd1 58.b7 Nb2 59.Be4 Na4 60.Kb4 Ke3 61.Bc6 Nb2 62.b8Q Nd3 63.Kc3 e4 64.Qg3 Ke2 65.Be4 Nf2 66.Qf3 Kf1 67.Qf2! Kf2 68.c5 Ke3 69.Ba8 Kf4 ½–½. bratek55 (1695) – anand09 (1820), kurnik, 2011.

8.0-0 c6 9.a4 cb5 10.ab5 a6 11.ba6 Ra6 12.Ra6 Na6 13.c4 Nc5 14.Nc3 Bd7 15.Qa1 Qc8 16.Nd5 Nd5 17.Bg7 f6 18.Bf8 (18.ed5?! Kg7 19.d4 Na6+/-; 18.cd5?! Kg7 19.Rc1 Qa8+=) 18...Qf8 19.cd5 b5 20.Nd4 b4 21.Qa7 Qc8 22.Ra1 b3 23.Qa3 Qb7 24.Qa8 Kf7 25.Qb7 Nb7 26.Nb3 h5 27.d4 e6 28.Ra7 Bc8 29.de6 Ke6 30.Ba6 d5 31.Bb7 Bb7 32.Rb7 de4 33.Rb5 f5 34.g3 g5 35.Kf1 Kf6 36.Rb6 Ke7 37.d5 Kd7 38.Ke2 g4 39.Rh6 (39.Rh6 Kc8 40.d6 f4 41.Nc5 Kb8 42.gf4 e3 43.Rh8 Ka7 44.d7 Kb6 45.d8Q Kc5 46.Rh5 Kc6 47.Qf6 Kd7 48.Rh7 Ke8 49.Qe7#) 1–0. bratek55 (1705) – linakip, kurnik, 2011.

8.0-0 c6 9.a4 Bd7 10.c4 cb5 11.ab5 a6 12.ba6 Ra6 13.Nc3 Nc6 14.Ra6 ba6 15.Qa1 Ng4 16.Nd5 Bb2 17.Qb2 e6 18.Ne3 Ne3 19.fe3 a5 20.Ra1 (20.e5 Qc7 21.ed6 Qd6+/-) 20...Qc7 21.Nd4 Nb4 22.Nb3 Rb8 23.Qc3 a4 24.Nd4 e5 25.Nc2 Nc2 26.Qc2 Qc5 27.Kf2 a3 28.Ra2+= Qb4 29.d4 ed4 30.ed4= Qb3 31.Bd1 Qb4 32.c5?? dc5?? 33.dc5?? Rc8 34.Qd2 Qc5 35.Qe3 Qe3 36.Ke3 Ra8 37.Bb3 Kg7 38.Kd4 h6 39.h4 Kf6 40.g3? Ra5?? 41.Rf2= Ke7 42.Rf7 Kd6 43.Rf2 Ba4 44.Ba2 Be8 45.Rf6 Ke7 (45...Ke7 46.e5 Ra4 47.Kc5 Ra5 48.Kb4 Rb5 49.Ka3 Ra5 50.Kb2 Re5=). bratek55 – okular59, kurnik, 2011.

8.0-0 Bd7 9.c4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 c6 13.bc6 Nc6 14.Nc3 e6 15.Qb3 Qc7 16.Rb1 Rb8 (16...Ra8!?+=) 17.Nb5+/- Qd8 18.Nd6 b6 19.e5 Ng4 20.d4 f5 21.h3 Nh6 22.d5 Qe7 23.dc6 Bc6 24.Qe3 Nf7 25.Nf7 Qf7 26.Rb6 Be4 27.Rb8 Bf8 28.Ng5 Qc7 29.Rf8! Kf8 30.Ne6 (30.Ne6 Kg8 31.Nc7 Ba8 32.e6 Be4 33.Qd4 Bg2 34.Qd8#) 1–0. bratek55 (1695) – marian8806, kurnik, 2011.

8.0-0 Nbd7 9.c4 c6 10.a4 Qc7 11.Nc3 Ne5 12.Ne5 de5 13.Qb3 Bg4 14.f3 Be6 15.Qc2 Nh5 16.g3 Rad8 17.Bc1 Qb6 18.Kg2 f5 19.a5 Qd4 20.Bb2 Qd7 21.bc6 bc6 22.Bc1 f4 23.g4= Nf6 24.Ba3 Ng4 25.fg4+/- Bg4 26.Bg4 Qg4 27.Kh1 Rf7 28.Rad1 f3 29.Qf2 Rb8 30.Rb1 Rb1 31.Nb1 h5? 32.Qg3?? e6 33.Qg4 hg4+/- 34.Bc5 a6 35.Nc3 Bh6 36.Nd1 Rb7? 37.Be3?? Bg7? 38.Nc3?? Rb3= 39.Rc1 Bf6 40.Kg1 Bh4 41.Kf1 g5 42.Bf2 Kf7 43.Na4 Rd3 44.Nc5 Rd2 45.Bh4? gh4–+ 46.Na6? Rh2 47.Kg1 Rg2 48.Kh1 Ra2 49.Nb4 Ra5 50.Nc6 Rc5 51.Nb4 Kf6 52.Nd3 Ra5 53.c5 Ra2 54.c6= g3 55.c7 g2?? 56.Kg1+– (56.Kg1 f2 57.Nf2+–) 1–0. bratek55 (1615) – anyrteb (1635), kurnik, 2011.

8.0-0 h6 9.a4 Kh7 10.c4 e5 11.Nbd2 Nbd7 12.h3 Ng8 13.Nh2 Ne7 14.Ng4 f5 15.ef5 Nf5 16.Ne4 b6 17.Qd2 h5 18.Nh2 Bh6 19.Qd1 Nf6 20.Nf6 Qf6 21.Bh5 gh5 22.Qh5 Ng7 23.Ng4 Nh5 24.Nf6 Nf6 25.g4 Rg8 26.Kh2 Bf4 27.Kg2 Bb7 28.f3 Nd7 29.Bc1 Bc1 30.Rac1 Raf8 31.Rc2 Rf4 32.Rcf2 Rgf8 33.Kg3 Nc5 34.Rd2 Ne6 35.h4 Nd4 36.Rdf2 Rf3 37.Rf3 Rf3 38.Rf3 Bf3 39.g5 Be2 40.Kh3 Bd3 41.h5 Bc4 42.Kh4 Nf3 43.Kg4 Ng5 44.Kg5 e4 45.Kf4 d5 46.Ke3 Kh6 47.Kd4 Kh5 48.Kc3 e3 49.Kc2 e2 50.Kd2 Kg4 51.Ke1 Kf3 52.a5 ba5 53.b6 ab6 54.Kd2 Kf2 55.Kc3 e1Q 56.Kd4 Qe3 0–1. Adjailton (1870) – rgol (1830), lichess.org, 2021.

8.c4 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nc3 Nc5 13.0-0 h5 14.Qc2 c6 15.Qb2 Nfe4 16.de4 Ne4 17.Qc2 Bf5 18.Ne4 Ba1 19.Ra1 d5 20.cd5 cd5 21.Rd1 Be4 22.Qe4 de4 23.Rd8 Rd8 24.Ng5 Rd2 25.Kf1 f5 26.g3 Kg7 27.Ne6 Kf6 28.Nf4 Ra2 29.Nd5 Kf7 30.Nf4 Ra1 31.Kg2 e6 32.Kh3 Kf6 33.f3 Ra2 34.fe4 e5 35.Nd5 Kg5 36.Bc4 Rc2 37.Ne3 Rc3 38.ef5 gf5 0–1. Adjailton (1795) – AdamSalah (1740), lichess.org, 2020.

8.c4 Nbd7 9.0-0 c6 10.a4 Nb6 11.Nbd2 d5 12.c5 de4 13.de4 Nbd7 14.Qb3 Nc5 15.Qc4 Ne6 16.bc6 bc6 17.Qc6 Bd7 18.Qc4 Rc8 19.Qd3 Nf4 20.Qe3 Ne2 21.Qe2 Bg4 22.h3 Be6 23.e5 Nd5 24.Ng5 Rc2 25.Ne6 fe6 26.Qb5 Rd2 27.Bc1 Re2 28.Bg5 Re5 29.f4 Ref5 30.Rad1 Nf4 31.Rd8 Rb5 32.Rf8 Kf8 33.Bf4 Rf5 34.g4 Bd4 35.Kg2 Ra5 36.Be5 1–0. Adjailton (1855) – Dani3001, lichess.org, 2021.

6.Be2 Nbd7

7.0-0 a5 8.b5 b6 9.c4 Bb7 10.Nc3 c6 11.a4 Rc8 12.Rc1 Nc5 13.e5 de5 14.Ne5 Nfd7 15.Nd7 (15.Nc6 Bc6 16.bc6 Nb8=) 15...Nd7 16.Bf3 Nc5 17.Qc2 (17.Ba3 Nd3 18.Be7 Qe7 19.Qd3+=) 17...cb5 (17...Qd3 18.Rfd1 Qc2 19.Rc2 Ba8-/+) 18.Nb5?? (better is 18.Bb7 Nb7 19.ab5= (worse is 19.cb5 Qd7+=)) 18...Bf3–+ 19.Bg7 Kg7 20.gf3 Qd3 21.Qd3 Nd3 22.Rcd1 Nf4 23.Rd4 Ne2 24.Kg2 Nd4 25.Nd4 Rc4 26.Nb5 Ra4 27.Rb1 Rb4 28.Rb4 ab4 29.Nd4 Rc8 30.f4 Rc3 31.Nb5 Rd3 32.Kf1 b3 33.Na3 b2 34.Ke2 Ra3 (34...Ra3 35.f3 b1Q 36.Kf2 Ra2 37.Ke3 Qc1 38.Kd3 Rd2 39.Ke4 Qe1#) 0–1. bratek55 (1715) – mattoth, kurnik, 2011.

7.0-0 a5 8.b5 c5 9.c4 b6 10.Nc3 e6 11.Qc2 Bb7 12.d4 cd4 13.Nd4 Rc8 14.f3 Ne5 15.Na4 Qc7 (15...Nc4!? 16.Bc4 d5-/+) 16.Rac1 Rfd8 17.Qb3 Nfd7 18.f4 Nc5 19.Nc5 Qc5 (worse is 19...bc5 20.Ne6 fe6 21.fe5 Be4 22.Bg4+/-; worse is 19...dc5 20.Nc2 Nd3 21.Bd3 Bb2 22.Rce1=) 20.fe5 (better is 20.Rfd1 Nd7 21.Ba3 Bd4 22.Kh1=) 20...de5-/+ 21.Bd3 ed4 22.Ba3 Qh5 23.Qd1 Qh6 24.Qf3 Rd7 25.Rce1 Be5 26.g3 Kh8 27.Bc1 Qg7 28.Bg5 h6 29.Bf4 Kh7 30.Be5 Qe5 31.Qf4 Qf4 32.gf4 Rc5 33.Rf2 Rh5 34.Rg2 Rh3 35.Rg3 Rh4 36.Rf1 1–0. bratek55 (1725) – szacharch, kurnik, 2011.

7.0-0 b5 8.c4 bc4 9.dc4 a5 10.e5 Ne5 11.Ne5 ab4 12.Nc6 Qd7 13.Nb4 Bb7 14.Bf3 Rab8 15.Bb7 Rb7 16.a3 c5 17.Bf6 Bf6 18.Ra2 cb4 19.ab4 Rb4 20.Nd2 Rfb8 21.Ne4 Rc4 22.Ra6 Re4 23.f3 Rd4 24.Qe2 Rb7 25.Ra8 Kg7 26.g4 Qc6 27.g5 Bg5 28.f4 Bf6 0–1. Adjailton (1860) – Lefterdhimo (1765), lichess.org, 2019.

7.0-0 b6 8.Nbd2 Bb7 9.a4 Rc8 10.c3 c5 11.b5 Qc7 12.c4 e6 13.Qc2 Ng4 14.Bg7 Kg7 15.Qc3 e5 16.h3 Ngf6 17.Ng5 h6 18.Ngf3 Ng8 19.Nh2 Ne7 20.Ndf3 f5 21.ef5 Nf5 22.g4 Nd4 23.Nd4 ed4 24.Qd2 Ba8 25.Bf3 Ne5 26.Ba8 Ra8 27.f4 Nf7 28.f5 Ne5 29.fg6 Ng6 30.Rf8 Rf8 31.Rf1 Rf1 32.Nf1 Qf7 33.Ng3 Ne7 34.Nh5 Kh7 35.Qf2 Qf2 36.Kf2 d5 37.Nf6 Kg6 38.Nd5 Nd5 39.cd5 Kf6 40.Kf3 Ke5 41.h4 Kd5 42.Kf4 Ke6 43.g5 hg5 44.hg5 Ke7 45.Kf5 Kf7 46.g6 Kg7 47.Kg5 c4 48.dc4 d3 49.Kf4 d2 50.c5 bc5 51.Ke5 d1Q 0–1. Adjailton (1790) – Nyerune11 (1795), lichess.org, 2019.

7.0-0 Rb8 8.Nbd2 a5 9.ba5 b5 10.a4 ba4 11.Bf6 Bf6 12.Ra4 Nc5 13.Ra3 Ba6 14.c4 e6 15.Qc2 d5 16.cd5 Qd6 17.e5 Be5 18.Ne5 Nd3 19.Bd3 Qa3 20.Ba6 Rb2 21.Qc1 Qa2 22.Ndc4 Rc2 23.Qh6 ed5 24.Nd7 Rd8 25.Nf6 Kh8 26.Qh7 1–0. Adjailton (1915) – Vkdio (1765), lichess.org, 2020.

7.0-0 Re8 8.h3 c6 9.Nbd2 (9.a3!?=) 9...Ne4+= 10.Bg7 Nd2 11.Qd2 (11.Nd2 Kg7 12.d4 e5 13.de5-/+) 11...Kg7 12.d4 Nf6 (12...e5 13.c4-/+) 13.Bd3 (13.c4+=) 13...e5 14.Be2 (14.de5 de5 15.Rfe1 Bh3 16.Re5 Re5 17.Ne5 Qd5-/+) 14...e4 15.Nh2 h5 (15...Be6 16.c4-/+) 16.c4+= d5 17.c5 Bd7 (17...e3 18.fe3 Ne4 19.Qd3-/+) 18.Rfd1 (18.Qe3 a5+=) 18...Qc7 (better is 18...e3!? 19.fe3 Ne4-/+) 19.Nf1+= Rad8 20.Qg5 Re6 21.Ng3 Ree8 22.Nh5 Nh5 23.Bh5 Rh8 24.Be2= f6 25.Qe3 Rh4 26.Bf1 Rdh8 27.a4 R8h5 28.g3 Rh3 29.Bh3 Bh3 30.Qf4? Qc8 31.f3+= Rf5 32.Qd6 Rf3 33.Rd2 Qf5 34.Qe7? Kh6–+ 35.Qf8 Kg5 36.Kh2 e3 37.Qh8 Rg3 38.Kg3 Qg4 39.Kh2 ed2 40.Qh3 d1Q 41.Rd1 Qd1 42.Qe3 Kf5 43.Qh3 Qg4 44.Qd3 Kg5 45.b5 Kh4 46.bc6 bc6 47.Qe3 g5 48.Qe1 Kh5 49.Qe8 Kh6 50.Qf8 Kg6 51.Qe8 Kf5 52.Qc6 Qf4 53.Kg2 Qd4 54.Qd7 Kf4 55.c6 Qd2 56.Kf1 f5 57.Qe6 d4 58.Qd6 Kg4 59.c7 Qd1 60.Kg2 Qc2 61.Kf1 d3 62.Qd4 Kf3?? 63.Qd5= Kg3 64.Qe5 Kg4 65.Qd4 f4 66.Qg1 Kf5 67.Qa7 f3 68.Qa5? Kg6 69.Qb6 Kh5 70.Qf2?? Qc1–+ 71.Qe1 d2 (71...d2 72.Qc1 dc1Q 73.Kf2 g4 74.c8R Qc8 75.Ke3 Qe6 76.Kd3 f2 77.Kc2 Qc4 78.Kd2 f1Q 79.a5 Qfe2#) 0–1. Villaboim,Nelson – Sant'Ana,Fernando (2200), Taca Rio de Janeiro 1st, 1995.

7.a3 c6 8.0-0 a5 9.Nbd2 ab4 (9...Qc7 10.Nc4=) 10.ab4+= Ra1 11.Qa1 Qb6 (11...b5 12.c4+=) 12.Qa3 Nh5 (12...Qc7 13.Ra1+=) 13.g3 Nhf6 (13...c5 14.Bg7 cb4 15.Qb2 Ng7 16.Rb1+/-) 14.Ra1 Ne8 (14...Qc7 15.d4+/-) 15.Kg2 (15.d4 Qc7+/-) 15...Bb2 16.Qb2 Ng7 17.Ng5 (17.d4 Nf6+/-) 17...Ne5 18.d4 Nd7 (18...f6 19.Nh3 Nf7 20.Bc4+=) 19.Nc4 (19.c3 h6 20.Ngf3 Nf6+/-) 19...Qc7 20.b5 Nf6 21.e5 Nd5 22.b6 Qd7 23.Ne4 de5 24.Ne5 Qh3 25.Kg1 Nf5 26.c4 Nf6 27.Nc5 Nh6 28.Bf1+– Qh5 29.Ra7 1–0. pierre – zacil, internet, 2009.

7.a3 d5 8.Nbd2=.

7.0-0 c5

8.b5 a6 9.a4 a5 10.c4 b6 11.Nc3 Bb7 12.Qb3 Ng4 13.Nd5 Nge5 14.Ne5 Ne5 15.f4 Bd5 16.fe5 Bb7 17.ed6 Qd6 18.Bg7 Kg7 19.Qc3 f6 20.Rf2 Rad8 21.Raf1 Qd4 22.Qd4 cd4 23.Bf3 e5 24.Bg4 h5 25.Be6 Rd6 26.Bd5 Bd5 27.ed5 f5 28.g3 Kf6 29.Rc2 Re8 30.Re1 e4 31.de4 Re4 32.Re4? fe4–+ 33.Kf2 Ke5 34.h3 d3 35.Rc1 Kd4 36.Re1 Rf6 37.Kg2 e3 38.c5 bc5 39.Rb1 Rf2 40.Kg1 Rf7 41.b6 Rb7 42.Kf1 Kd5 43.Ke1 Kd4 44.Rb5 d2 45.Ke2 c4 46.Ra5 Rb6 47.Ra8–+ Re6 48.Rd8 Kc3 49.a5 Kc2 50.a6 c3 51.a7 Ra6 52.Ke3 d1Q 53.Rd1 Kd1 54.Kd3 c2 (54...c2 55.a8Q Ra8 56.Kc4 c1Q 57.Kd5 Qg5 58.Kc6 Ra6 59.Kb7 Qb5 60.Kc7 Ra7 61.Kd6 Rd7 62.Ke6 Qf5#) 0–1. bratek55 (1680) – popapraniec2, kurnik, 2012.

8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 b6 12.c4 Bb7 13.Nc3 e6 14.Bb2 Qc7 15.Qb3 Ra8 16.Ra1 Ra1 17.Ba1 Ng4 18.h3 Nge5 19.Ne5 Ne5 20.Qa2 h5 21.Nd1 d5 22.f4 Nd7 23.Bg7 Kg7 24.Qa1 Kg8 25.e5 dc4 26.dc4 Kg7 27.Nf2 Qb8 28.Qd1 Nf8 29.g4 hg4 30.Ng4 Qc7 31.Qd6 Qd6 32.ed6 Nd7 33.Kf2 Be4? 34.Ke3 Bg2 35.h4 Bh3? 36.Ne5+– Ne5 37.fe5 Bf5 38.Bd3 Bd3 39.Kd3 Kf8 40.Ke4 Ke8 41.Kf4 Kd7 42.Kg5 (42.Kg5 Kd8 43.Kf6+–) 1–0. bratek55 (1650) – okular59 (1745), kurnik, 2012.

8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 b6 12.c4 Re8 13.Nc3 Nf8 14.Nd5 Nd5 15.cd5 Bd7 16.Bg7 Kg7 17.d4 cd4 18.Nd4 Qa8 19.Nc6 Bc8?? 20.Qd4+– Kg8 21.e5 de5 22.Qe5 Nd7 23.Ne7?? Kf8-/+ 24.Ng6 hg6 25.Qh8 Ke7 26.Qh4 Kf8 27.Qh8 Ke7 28.Qh4 Kd6 29.Qf4 Ne5?? 30.Rc1?? Bd7?? 31.Qb4 Kd5 32.Rd1 Nd3?? 33.Rd3 Ke6 34.Re3 Kf6 35.Qd4 Kg5 36.Rg3 Kf5?? 37.Bg4 Kg5 38.Qd2 Kf6+– 39.Rf3 Kg7 40.Qb2 Kg8+= 41.h3 Bg4 42.hg4 Qb8 43.g3 Re1 44.Kg2 Re6 45.Qd4 Qd6 46.Qd6 Rd6 47.Rb3 Rd5 48.f4 Kg7 49.Kf3 Kf6 50.Ke4 Rc5 51.g5 Ke6 52.g4 Rc4 53.Ke3 Kd5 54.f5?? gf5 55.gf5= Rg4 56.g6 fg6 57.fg6 Rg6 58.Kf4 Kc5 59.Kf5 Rd6 60.Ke5 Rd1 61.Ke4 Rc1 62.Ke5? Rc4–+ 63.Ke6 Rb4 64.Rh3 Kb5 65.Kd5 Ka4 66.Rh8 b5?? 67.Ra8= Kb3 68.Rh8?? Rc4 69.Rh3 Rc3 70.Rh1 b4 71.Kd4 Rc2 72.Rh3 Kb2 73.Rh8 b3 74.Kd3 Rc3 75.Kd2 1–0. bratek55 – robertopa (1635), kurnik, 2011.

8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 b6 12.Nbd2 Bb7 13.Nc4 d5 14.ed5 Bd5 15.Qd2 Qa8 16.Ne3 Bb7 17.c4 Nh5 18.Bg7 Ng7 19.Qb2 Bf3 20.Bf3 Qb8 21.Ra1 Ne6 22.Nd5 Re8? 23.Bg4?? Qe5?? 24.Qe5+– Ne5 25.Be2 Nd4 26.Bf1 e6? 27.Nb6 Nb3 28.Ra8 Ra8 29.Na8 Nc1 30.b6 Nc6 31.Nc7 Nb3 32.Be2 Nba5 33.Bf3 Kf8 34.Kf1 Ke7 35.Nb5 Kd7 36.g3 Nb8 37.h4 1–0. bratek55 – wagmir, kurnik, 2011.

8.b5 a6 9.Nc3 ab5 10.Nb5 Qb6 11.c4 Ng4 12.h3 (better is 12.Bg7 Kg7 13.Qd2=) 12...Bb2-/+ 13.Rb1 Nf2! 14.Rf2 (14.Rf2 Bf6 Combination; 14.Kf2 Bd4 Double attack) 14...Bg7 (14...Ra2? 15.Qb3 Ra1 16.Qb2 Rb1 17.Qb1+–) 15.a4 (15.a3 Bh6 16.Rf1 Qa5-/+) 15...Qa5–+ 16.Ra1? (16.Qc1 Ne5–+) 16...Ne5 (better is 16...Ba1 17.Qa1 Qa4–+) 17.Ne5 Be5 18.Ra2 Bd7 19.Qc2? (better is 19.Rf1–+) 19...Bb5 20.cb5 Bd4 21.Kf1 Bf2 22.Kf2 Qb4 23.Kg1 Ra5 24.Bd1 Rfa8 25.Qe2 Qd4 26.Kh1 e6 27.Rc2 Ra4 28.Rb2 Ra1 29.Rd2 R8a3 30.Kh2 Rc3 31.g3 Rcc1 32.Qf2 Qf2 33.Rf2 Rd1 34.Kg2 Rd3 35.Re2 Rad1 36.Kf2 R3d2 37.Rd2 Rd2 38.Ke3 Rb2 39.Kd3 Rb5 40.g4 Rb3 41.Kc4 Rh3 42.Kb5 d5 43.ed5 ed5 44.Kc5 Rg3 45.Kd5 Rg4 46.Kc5 h5 47.Kd5 h4 48.Kc5 h3 49.Kd5 h2 50.Kc5 h1Q 51.Kb6 Rc4 52.Ka7 Qb1 53.Kb8 b5 54.Kb7 b4 55.Kb6 b3 56.Kb5 Rc2 57.Kb4 b2 58.Kb3 Qc1 59.Kb4 b1Q 60.Ka5 Ra2 0–1. erisonpassos – bnono62, kurnik, 2011.

8.b5 b6 9.c4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nh5 13.Bg7 Ng7 14.Nc3 f5 15.Nd5 e6 16.Nc3 Ne5 17.Ne5 de5 18.Qa1 Bb7 19.Qa7 Qd4 20.Qb7 Qc3 21.Qb6 Qd2 22.Bf3 fe4? 23.Be4+– Nf5 24.Qc5 Nd4 25.Qe5 Ne2 26.Kh1 Nc3 27.Qe6 Kh8 28.Qe5 (28.Qe5 Kg8 29.Bd5 Nd5 30.Qd5 (30.cd5?! Qd3 31.Qe6 Kh8+–) 30...Kg7 31.Qd4 Kg8 32.c5+–) 1–0. bratek55 (1745) – ajuhh, kurnik, 2011.

8.b5 b6 9.c4 Bb7 10.Nc3 e6 11.a4 h6 12.Qc2 Nh5 13.g3 Nhf6 14.Nh4 Ne5 15.f4 Neg4 16.Qd2 h5 17.h3 Nh6 18.Bf3 Qc7 19.Rae1 Rae8 20.Nd1 Qc8 21.Bg2 Qa8 22.e5 de5+= 23.Be5 Bg2 24.Qg2 Nd7? 25.Bg7 Kg7 26.Qa8 Ra8 27.Nc3 Nf6 28.Re3 Rfd8 29.Nf3? Nf5–+ 30.Rfe1 Ng3 31.Ne5 Nf5 32.Rf3 Rd4 33.Nc6 Rd6 34.Rd1 h4 35.Ne5 Nh5 36.Ne4 Rd4 37.Nc6 Rad8 38.Nd4? Nd4–+ 39.Re3 Nf4 40.Kh2 e5 41.a5 f5 42.Ng5 Kh6?? 43.Nf3 Nf3–+ 44.Rf3 Kg5 45.ab6 ab6 46.Rg1 Kf6 47.Ra1 Rd3?? 48.Ra6?? Rf3–+ 49.Rb6 Kg5 50.Rc6 Rf2 51.Kg1 Nh3 52.Kh1 e4 53.b6 Rb2 54.Rc5 Rb6 55.Rb5 Rc6 56.c5 e3 57.Kg2 Nf4 58.Kf3 e2 59.Kf2 Re6 60.Rb1 Re5 61.Rc1 Nd3 62.Kf3 Nc1 63.c6 e1Q (63...e1Q 64.Kg2 Re2 65.Kf3 Qc3) 0–1. bratek55 (1630) – 68tomek68 (1770), kurnik, 2011.

8.b5 b6 9.c4 Bb7 10.Nc3 Ng4 11.Qc2 h6 12.Nd5 Bb2 13.Qb2 e6 14.Ne3 Ne3 15.fe3 Qf6 16.Qf6 Nf6 17.e5 (17.h3 a6=) 17...Ne8 (better is 17...Ng4!? 18.ed6 Ne3-/+) 18.ed6 Nd6 19.Ne5 Rfd8 20.a4 Kg7 21.a5 f6 22.Nf3 Nf5 23.Kf2 h5 24.a6 Bc8 25.Rad1 e5 26.Nd2 Be6 27.Bf3 Rab8 28.Ne4 g5 29.h3 h4 30.Nc3 Ne7 31.Bb7 f5 32.Ke2 Kg6 33.Rg1 Rd6 34.g3 hg3 35.Rg3 Rbd8 36.Bf3?? f4?? 37.ef4 ef4-/+ 38.Rgg1 Nf5 39.Be4 Kf6 40.Bf5 Bf5-/+ 41.h4 Bd3–+ 42.Kf3 Bc4?? 43.Rd6+= Rd6 44.hg5?? Kf5–+ 45.Ne2 Rd3 46.Kf2 Rd2 47.Re1 Kg5 48.Kf3 Re2 49.Re2 Be2 50.Ke2 Kg4 51.Kd3 f3 52.Ke4 Kg3 53.Kd5 f2 54.Kc6 f1Q 55.Kb7 Qf7 56.Kb8 c4 (56...c4 57.Kc8 c3 58.Kb8 c2 59.Ka8 c1Q 60.Kb8 Qcc7 61.Ka8 Qf3#; 56...Qd7 57.Ka8 Qc8 58.Ka7 Qc7 59.Ka8 c4 60.a7 Qc8#) 0–1. bratek55 – okular59, kurnik, 2011.

8.b5 Nb6 9.c4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Bg4 13.Nc3 Qa8 14.Bb2 Nfd7 15.Qa1 Qa1 16.Ba1 Ra8 17.Bb2 Na4 18.Na4 Ra4 19.Bg7 Kg7 20.h3 Bf3 21.gf3 Kf6 22.f4 e5 23.Bg4 Nb6 24.fe5 Ke5 25.f4 Kd4 26.f5? Kd3–+ 27.fg6 fg6 28.Rf7 Rc4 29.Rb7 Na4 30.Rh7 Re4 31.Rg7 Re1 32.Kf2 Rb1 33.Bd7 c4 34.Rg6 c3?? 35.Bf5+– Kd2 36.Bb1 d5 37.b6 Nb6 38.Rb6 d4 39.h4 d3 40.Bd3! Kd3 41.Rd6 Ke4 42.Rc6 Kd3 43.h5 c2 44.h6 Kd2 45.h7 (45.h7 c1Q 46.Rc1 Kc1 47.h8Q+–) 1–0. bratek55 (1690) – elzabalfa, kurnik, 2011.

8.b5 e5 9.c4 Re8 10.Nc3 Nf8 11.Nd5 Ne6 12.g3 Nd4 13.Nd4 ed4 14.f4 Nd5 15.cd5 f5 16.Bf3 fe4 17.Be4 Qf6 18.f5 gf5 19.Bf5 Bf5 20.Qf3?? Rf8 21.Qh5 Qg6 22.Qg6 Bg6 23.Rfd1 Rf3 24.a4 Re8 25.Rd2 Bh6 26.Rf2 Be3 27.Raf1 Bd3 28.Bc1 Rf2 29.Rf2 Bc1 30.Rf6 Be3 31.Kg2 Be4 32.Kh3 Bd5 33.Rd6 Be6 34.Kg2 c4 (34...c4 35.Kf3 c3–+) 0–1. bratek55 (1780) – chessgenius86 (1745), kurnik, 2011.

8.b5 e5 9.c4 Re8 10.Nc3 Nf8 11.Nd5 Nh5 12.g3 Bh3 13.Re1 Ne6 14.a4 f5 15.ef5 gf5 16.Nh4 (better is 16.Ne5!? Nf6 17.Nf7 Kf7 18.Bh5 Nh5 19.Qh5 Kg8 20.Bg7 Kg7 21.Qh3+–) 16...Nf6= 17.Bf3 Ng5 (better is 17...Rb8!?=) 18.Nf6+/- Qf6 19.Bb7 f4 20.Qh5 (20.Ba8 Ra8 21.a5 Rf8+–) 20...Rf8? (better is 20...Rab8!?+/-) 21.Ba8+– Ra8 22.a5 Rf8 23.b6?? ab6?? 24.ab6?? fg3-/+ 25.f3 gh2?? 26.Kh2?? Qf4–+ 27.Kh1 Qd2?? 28.Rg1 h6?? 29.Bc1+– Qd3 30.Bg5 (30.Bg5 Bg4 31.Qg4 hg5 32.Qg5+–) 1–0. bratek55 (1790) – chessgenius86 (1730), kurnik, 2011.

8.bc5 Nc5 9.c4 Bd7 10.Nc3 a6 11.Nd5 Na4 12.Bd4 e5 13.Be3 Nd5 14.cd5 Nc3 15.Qd2 Ne2 16.Qe2 Bg4 17.Rab1 b5 18.Rfc1 f5 19.Rc6 fe4 20.de4 Bf3 21.gf3 Qf6 22.Kg2 Rfc8 23.Rbc1 Qd8 24.Qc2 Rc6 25.Qc6 h5 26.Kf1 Kh7 27.Ke2 Bh6?? 28.Qc7 Qc7 29.Rc7 Bg7 30.Bg5 Kg8 31.Be7 Bf8 32.Bf8 Kf8 33.Rd7 a5 34.Rd6+– b4? 35.Rb6?? g5 36.h3 Ke7? 37.Kd3 Rc8 38.Re6 Kd7 39.Re5 Rc3 40.Kd4 Rf3 41.Rg5 Rh3 42.Rg7 Kd8 43.e5 Rh1 44.Kc5 h4 45.Kd6 Ke8 46.e6 Kf8 47.Ra7 Re1 48.Ra5 h3= 49.Ra8 (49.Ra8 Kg7 50.Ra7 Kg6 51.Ra8=) 1–0. bratek55 (1680) – elzabalfa, kurnik, 2011.

8.bc5 Nc5 9.Nbd2 Be6 10.Nb3 Na4 11.Bd4 Qd7 12.Ng5 Rac8 13.c4 (worse is 13.Ba7 b6 14.Ne6 fe6 15.Bb6 Nb6-/+; 13.Ne6?! Qe6 14.c4 Nc5+=) 13...Ne8 14.Bg7 (14.Ba7? Ba1 15.Qa1 b6 16.Ne6 fe6–+ (16...Qa7? 17.Nf8 Nf6 18.e5 de5 19.Ne6+–; 16...Qe6?! 17.Qd4-/+); 14.Ne6?! fe6 15.f4 Bd4 16.Nd4 Nc5+=) 14...Kg7 15.Nd4 Nc3 16.Qd2 Ne2 17.Qe2 Bg4 18.f3 h6 19.fg4 hg5 20.Qb2 Nf6 21.h3 Rh8 22.Rab1 b6 23.Nb5 Rh7 24.e5 de5 25.Qe5 Qd3 26.Qe7 Qc4?? 27.Qf6+– Kh6 28.Nd6 Qc5 29.Kh1 Rc6 30.Nf7 Rf7 31.Qf7 (31.Qf7 Rc7 32.Qg8+–) 1–0. bratek55 (1715) – elzabalfa, kurnik, 2011.

7.0-0 e5

8.c4 a6 9.Nc3 c6 10.a3 b5 11.Qb3 Rb8 12.cb5 cb5 13.Rac1 Nb6 14.Rfd1 Be6 15.Qc2 Qd7 16.Ng5 Rbc8 17.Ne6 fe6 18.h3 d5 19.ed5 ed5 20.Bf3 d4 21.Ne4?? Rc2–+ 22.Rc2 Ne4 23.Be4 Nd5 24.Rdc1 Nc3! 25.Bc3 dc3 26.Rc3 Qd4 27.R3c2 Bh6 28.Rf1 Bf4 29.Kh1 a5! 30.g3 Bg5 31.h4 Be7 32.ba5 Qa4 33.Rc7 Ba3 34.h5 Qa5 35.Rb7 Bc5 36.hg6 hg6 37.Kg2 Qd2 38.Bd5+– Kh8 39.Rh1 (39.Rh1 Qh6 40.Rh6) 1–0. bratek55 (1710) – facehead (1750), kurnik, 2011.

8.c4 b6 9.Nc3 Bb7 10.Qb3 Ne8 11.Rfd1 Kh8 12.d4 f5 13.de5 fe4 14.Nd2 Qh4 15.g3 Qh2?? (better is 15...Qh3 16.Nde4 Ne5=) 16.Kh2+– Rf2 17.Kg1 e3 18.Nde4 (better is 18.ed6 Nd6 19.Nde4 Re2 20.Ne2 Be4 21.c5 bc5 22.bc5 Nc5 23.Bg7 Kg7 24.Qc3 Kg8 25.Qc5+–) 18...Be5 (18...Be4 19.e6 Ne5 20.Ne4 Re2 21.Be5 Be5+–) 19.Nf2 ef2 20.Kf2 Ng7 (20...a5 21.Nd5 Bc6 22.Nc7+–) 21.Nd5 Rf8 22.Kg2 1–0. bratek55 (1720) – apotek, kurnik, 2011.

8.c4 b6 9.Nc3 Bb7 10.Qb3 Ne8 11.Nd5 Bd5 12.cd5 f5 13.Rac1 fe4 14.de4 Ndf6 15.Bd3 Ng4 16.h3 Nh6 17.Rc6 Rf3 18.gf3 Qh4 19.Kh2 Nf6 20.Rg1 Rf8 21.Rc7?? Nh5 22.Rg7?? Kg7+= 23.Be2 Nf4 24.Bf1 Nf7?? 25.Rg4?? Qf2–+ 26.Bg2 h5?? 27.Rf4+– h4 28.Rg4 g5?? 29.Bc1 Kg6 30.Qe3 Rg8?? 31.Qf2 1–0. bratek55 (1670) – amator17 (1610), kurnik, 2011.

8.c4 c5 9.a3 a5 10.b5 b6 11.Nc3 Bb7 12.Nd5 Nd5 13.cd5 f5 14.Bc1 f4 15.g3 g5 16.gf4 (16.Nd2 Nf6=) 16...gf4 (better is 16...ef4!? 17.d4 g4–+) 17.Kh1 Kh8 18.Rg1 Bf6 19.Qf1 Qe7 20.Bd2 Rg8 21.Qh3 Rg1 22.Rg1 Rg8 23.Rg8 Kg8 24.Ng1 Nf8 25.Bg4 Qg7 26.f3 Qg5 27.Be1 Ng6 28.Be6 Kg7 29.Qg4 h5 30.Qg5 Bg5 31.Nh3 Bf6 32.Kg2 Nf8 33.Bf5 Ng6 34.Be6 Nf8 35.Bf5 Ng6 36.Nf2?? Nh4–+ 37.Kh3 Nf3 38.Bc3 Kh6 39.Kg2? Nd4?? 40.Bd4-/+ cd4 41.a4 Bh4 42.Nd1 Be1 43.Nb2 Kg5 44.Nc4= Bb4 45.Nb6 Bc5 46.Nc4 Bd5 47.Na5 Bb6 48.ed5 Ba5 49.Be4 h4 50.Kf3 Bb6 51.Bh7 Ba5 52.Bg8 Bc7 53.Be6 Bd8 54.Ke2 Ba5 55.h3 Bb6 0–1. bratek55 (1615) – arado, kurnik, 2011.

8.c4 c5 9.a3 a5 10.b5 b6 11.Nc3 Re8 12.Nd5 Nf8 13.Bc1 h6 14.Be3 Ne6 15.Qd2 Kh7 16.h3 Nd4 17.Bd4 cd4 18.Nh2 Nd7 19.f4 ef4 20.Rf4 Ne5 21.Raf1 Be6 22.g4 Qh4 23.Qe1 Qe1 24.Re1 Ra7? 25.Nb6+– f6 26.Nd5 h5? 27.Nf6+– Bf6 28.Rf6 hg4 29.Ng4 Bg4 30.hg4 Kg7 31.Rd6 Rf8 32.Rf1 Raf7 33.Rf7 Rf7 34.b6 Rb7 35.c5 Nf7 36.Rd4 1–0. bratek55 (1680) – 68tomek68 (1725), kurnik, 2011.

8.c4 c5 9.a3 b6 10.Nc3 Ng4 11.Nd5 f5 12.h3 Nh6 13.Rc1 f4 14.b5 Nf6 15.Nh2 Nd5 16.cd5 g5 17.Bg4 (better is 17.Qb3!?=) 17...Ng4+= 18.Ng4 h5 19.Nh2 Qe8 20.f3 (20.Rb1 a6+= (20...Qb5 21.Be5 Qd7 22.Bg7 Qg7 23.Qh5+–)) 20...Qg6 21.Kf2 Kh7 22.a4 Rg8 23.Rh1 Bh6 24.a5 g4 25.hg4= hg4 26.Ng4 Bg4 27.fg4 ba5 28.Rh4 Kg7 29.Qh1 Rh8 30.Ra1 Bg5 31.Rh8 Rh8 32.Qg1 Bh4 33.Ke2 Qg4 34.Kd2 Bd8 35.Qf2? Rh2–+ 36.Rg1 Bh4 37.Qe2 f3! 38.Qd1 Rg2 39.Rg2 Qg2 40.Kc3 f2 41.Qh5 Qg5 42.Qf3 Qf4 43.Qg2 Kh6 44.Qf1 Bg5 45.Qh3 Kg6 46.Qf1 Qd2 47.Kb3 Qe1 48.Qh3 f1Q 49.Qe6 Qf6 50.Qe8 Kh6 51.Bc3 Qb1 52.Kc4 Qa2 0–1. bratek55 (1690) – dacuslucicus (1630), kurnik, 2011.

8.c4 c5 9.b5 Re8 10.Nc3 Nf8 11.Nd5 Ne6 12.g3 Nd4 13.Nd4 ed4 14.f4 Nd5 15.cd5 f5 16.Bf3 Qf6 17.a4 fe4 18.Be4 Bf5 19.Re1 Kf7 20.Qf3 h5 21.Kg2 Bg4 22.Qf2 Re7 23.h3 Bd7 24.Re2 Rae8 25.Rae1 Bf5 26.Qf3 Bd7 27.g4 hg4 28.hg4 Qh4 29.f5 gf5 30.gf5 Be5 31.Kf1 Rg8-/+ 32.Rg2 Ree8 33.Ke2 Rg3 34.Rg3+= Bg3 35.Rg1 Rg8 36.Bc1 Qh2 37.Rg2 Qh4 38.Bd2 Kf6?? 39.Kd1?? Be8= 40.Kc2 Bh5 41.Qf1 Qh3 42.Rg1 Qh2 43.Rh1 Qe2 44.Qe2 Be2 45.Rh6 Kf7 46.Rh7 Rg7 47.Rg7 Kg7 48.Bg5 Be5 49.Bd8 1–0. bratek55 (1760) – chessgenius86 (1760), kurnik, 2011.

8.c4 c6 9.Nc3 Qc7 10.Qb3 a5 11.a3 h6 12.Rfc1 Re8 13.Nd1 Nh5 14.g3 Nf8 15.Nh4 Nf6 16.f4 Kh7 17.fe5 de5 18.Ne3 Be6 19.Qc2 N6d7 20.Bg4 Bg4 21.Ng4 h5 22.Ne3 Ne6 23.Rf1 Ndf8 24.c5 Rad8 25.Rad1 Nd4 26.Bd4 Rd4 27.Nc4 Ne6 28.Nd6 Re7 29.Rf2 Bf8 30.Rdf1 (30.Rdf1 Ng5 31.Kg2 ab4 32.ab4+/-) 1–0. bratek55 (1760) – zidis, kurnik, 2011.

8.c4 c6 9.Nc3 Qc7 10.Qb3 Re8 11.Rac1 Nf8 12.h3 Ne6 13.g3 (better is 13.Qc2!?=) 13...Nd4-/+ 14.Nd4 ed4 15.Nd1 Bh3 16.Kh2? (better is 16.Re1 Ng4 17.a3-/+) 16...Bf1–+ 17.Bf1 Ng4 18.Kg2 Bh6 19.Rc2 Qe7 (better is 19...c5!? 20.Be2 Nf6 21.Ne3–+) 20.Bd4 Ne5 21.f4 Ng4 22.Nf2 Nf2 23.Bf2 f5 24.Re2 fe4 25.de4 Qf6 26.c5 Qf7?? 27.Qf7+/- Kf7 28.cd6 Rad8 29.e5 b6 30.Rc2 g5 31.Bc4 Kg6 32.Bd3 Kf7 33.Be3 gf4 34.gf4 Re5 35.fe5 Be3 36.Bh7 Ke6 37.Re2 Bd4= 38.Be4 Be5 39.Bc6 Rh8? 40.d7+– Kd6 41.b5 a6 42.a4 ab5 43.ab5 Rh2 44.Kf3 Rh3 45.Ke4 Rh4 46.Kf5 Rf4 47.Kg6 Rf6?? 48.Kg5 Rf8 49.Rd2 Kc7 50.Rd5 Bd6 51.Rf5 Rg8 52.Kh6 Kd8 53.Kh7 Rf8 54.Rd5 Bf4 55.Kg6 Bc7? 56.Rd1 Rg8?? 57.Kf7 Rh8 58.Ra1 Rh7 59.Kg6 Rh2?? 60.Ra8 Ke7 61.d8Q Bd8+= 62.Ra7 Kd6?? 63.Rd7+– Kc5 64.Rd8 Rg2 65.Bg2 1–0. bratek55 (1660) – klarkikent (1770), kurnik, 2012.

8.c4 c6 9.Nc3 Qe7 10.Rc1 h5 11.Qb3 Nh7 12.Rfd1 Bh6 13.Rc2 g5 14.d4 g4 15.Ne1 Ng5 16.Bc1 Nf6 17.f4 (better is 17.de5 de5 18.Be3+/-) 17...ef4+= 18.Bf4 Nfe4 19.Ne4 Qe4 20.Qe3? (better is 20.Bc1=) 20...Qe3 21.Be3 Kg7 22.d5 Nf3 23.gf3 Be3 24.Kg2 Bf5 25.Rc3 Rfe8 26.fg4 hg4 27.dc6 bc6 28.Nc2 Bf4 29.Nd4 Be4 30.Kg1 Be5 31.Bg4 c5 32.bc5 dc5 33.Ne2 Bc3 34.Nc3 Rad8?? 35.Rb1?? Re7 36.Rb5?? Bd3 37.Rc5 Rd4 38.h3 Rc4 39.Rc4 Bc4 40.Ne4?? Ba2 41.Nd6 Re3 42.Nf5+– Kf6 43.Ne3 a5 44.Bd1 Ke5 45.Kf2 Kd4 46.h4 Bb1 47.h5 Kc3 48.h6 Bg6 49.Ba4 Kb4 50.Be8 a4 51.Nd5 Kb3 52.Ba4! Ka4 53.Ke3 Kb5 54.Kf4 Kc5 55.Ke5 (55.Ke5 Bh7 56.Nf6+–) 1–0. bratek55 (1645) – cienias321 (1665), kurnik, 2011.

8.c4 c6 9.Nbd2 Nh5 10.g3 Re8 11.d4 Qe7 12.Qb3 Nf8 13.de5 de5 14.c5 Bg4 15.Nc4 Nd7 16.Nd6 Rf8 17.Rad1 Rab8 18.Kg2 Be6 19.Bc4 Bc4 20.Qc4 Rfd8 21.Rd3 Nf8 22.Rfd1 g5?? 23.h3 Ng6 24.Bc1 h6 25.a4 Rf8 26.Nh2 Kh7 27.Ng4 Nf6 28.Ne3 Nf4?? 29.gf4 ef4 30.Nef5 Qe6 31.Qe6 fe6 32.Ng7 (32.Ng7 Kg7 33.Bb2+–) 1–0. bratek55 – cienias321 (1710), kurnik, 2011.

8.c4 Qe8 9.Nc3 c6 10.d4 Nh5 (better is 10...ed4!? 11.Nd4 Ne4+=) 11.d5+= Nf4 12.g3 (better is 12.dc6!? Ne2 13.Ne2+/-) 12...Ne2= 13.Qe2 f5 14.Rad1 f4 (14...Nb6 15.c5 dc5 16.bc5 fe4 17.Ng5 (worse is 17.cb6 ef3 18.Qc4 ab6-/+; 17.Qe4?! cd5 18.Nd5 Nd5 19.Qd5 Be6=) 17...Nd5 18.Nd5 cd5 19.Rd5+=) 15.g4 (15.dc6 bc6 16.Rd6 Rf6+/-) 15...h5 16.g5 h4? (better is 16...Qe7+=) 17.dc6+– bc6 18.Rd6 Nb6? (better is 18...c5+–) 19.c5 (19.Nh4 Be6 20.c5 Nc4+=) 19...Nd7 20.Nh4 f3 21.Nf3 a5 22.Qc4 Kh7 23.Nh4 Ba6 24.b5 cb5 25.Qd3 Nc5 26.Qh3 Bc8 27.Nf5 Kg8 28.Nh6 Bh6? 29.Qh6+– Ra6 30.Ra6 Ba6 31.Nd5 Ne4?? 32.Re1 Nd2+/- 33.Nf6 Rf6 34.gf6 Nf3 35.Kh1 Ne1?? 36.Qg7 1–0. bratek55 (1625) – koziolekmat (1790), kurnik, 2011.

8.c4 Re8 9.Nc3 Nf8 10.Nd5 Nd5 11.cd5 f5 12.Qc2 f4 13.Rac1 Re7 14.d4 g5 (14...ed4 15.Bd4 Bg4 16.Bg7 Rg7 17.Rfe1+/-) 15.de5 de5 16.Ng5 Bf6 17.Nf3 Rg7 18.Kh1 (worse is 18.Be5 Be5 19.Ne5 Qg5+=) 18...Qe8 19.Rg1 Ng6 20.Qb3 Kh8 21.Rcd1 Bg4 22.d6 c6 23.b5 Qd7 24.bc6 bc6 25.Ba3 Rag8 26.Rb1 Nh4 27.Nh4 Bh4 28.Bg4 Qg4 29.Qf3 Qe6 30.g3 fg3+= 31.fg3 Bd8? 32.Bb2 Bb6? 33.Rg2?? Bd4 34.Bd4 ed4 35.Qf4 d3 36.e5+/- Rf7 37.Qd4+– Rf5 38.Re1 Rgf8 39.Qd3 Rf2?? 40.d7 Rg2 41.Kg2 Rd8 42.Qd4 Rd7+/- 43.Qe4 Rd2= 44.Re2 Qd5? 45.Qd5+– Re2 46.Kf3 cd5 47.Ke2 Kg8 48.Ke3 Kf7 49.Kd4 Ke6 50.h4 h5-/+ 51.a3 a6 (51...a6 52.a4 a5–+) 0–1. bratek55 (1705) – klarkikent (1725), kurnik, 2012.

8.c4 Ne8 9.Nc3 h6 10.Nd5 c6 11.Ne3 f5 12.ef5 gf5 13.Qb3 f4 14.Nd1 Kh8 15.Nc3 Ndf6 16.Ne4 Be6 17.Qc2 Bf5 18.Nfd2 Qd7 19.Bf3 Nh7 20.Rfd1 Nef6 21.Nf6 Bf6 22.Ne4 Bg7 23.Rac1 Ng5 24.Ng5 hg5 25.Be4 g4 26.Bf5 Qf5 27.d4 e4 28.d5 Be5? 29.dc6+– bc6 30.Be5 Qe5+= 31.Qc3 Qc3 32.Rc3 Rf6 33.a4 a6 34.Kf1 Kg7 35.Ke2 Kf7 36.f3 gf3 37.gf3 e3 38.Rcd3 Ke7 39.Rd4 Rg8 40.Re4 Kd7 41.Rdd4 Rg2 42.Ke1?? Rh6–+ 43.Rf4 Rhh2 44.Kf1 Rb2 45.Kg1–+ Rhg2 46.Kh1 Rgf2 47.Rd1 e2 48.Re1 Rf1 49.Kg2 Re1 50.Kf2 Rf1 51.Kg2 e1Q (51...e1Q 52.Kh3 Rh1 53.Kg4 Rg2 54.Kf5 Qe6) 0–1. bratek55 (1785) – bogce (1945), kurnik, 2011.

8.c4 Ne8 9.d4 ed4 10.Bd4 Ne5 11.Ne5 de5 12.Bb2 Qe7 13.Qb3 c6 14.Nd2 Nc7 15.c5 Ne6 16.Nc4 Nd4 17.Bd4 ed4 18.Bd3 Be6 19.Qc2 Bc4 20.Bc4 Rfe8 21.Bd3 Rad8 22.f4 Qh4 23.Qf2 Qf2 24.Rf2 Re7 25.a4 b6 26.cb6 ab6 27.Rc2 Rc7 28.Rac1 Rd6 29.e5 Re6 30.Be4 Bf8 31.Rc4 Ra7 32.Rc6 Ra4 33.Re6 fe6 34.Rc4 Rb4 35.Rb4 Bb4 36.Kf1 Kf7 37.Ke2 Ke7 38.Kd3 Bc3 39.Kc4 Kd7 40.g4 Kc7 41.f5 gf5 42.gf5 ef5 43.Bf5 d3?? 44.Kc3+– Kc6 45.Be4 Kd7 46.Kd3 Ke6 47.Kd4 b5 48.Bh7 b4 49.Bg8 Kd7 50.h4 1–0. bratek55 (1605) – artete (1630), kurnik, 2011.

8.c4 Ne8 9.d4 f5 10.de5 de5 11.ef5 gf5 (11...Rf5 12.c5+=) 12.Qb3 (12.Be5!? Be5 13.Ne5+–) 12...Kh8 13.Rd1 e4 14.Bg7 Ng7 15.Nd4 Qf6 16.Nc3 Ne5 17.Nd5 Qg6 18.Nc7 Ne6?? (better is 18...Rb8+–) 19.Nde6 (better is 19.Na8 f4 20.Qc3+–) 19...Be6 20.Na8 Rg8 21.g3 f4 22.Qc3 Qg7 23.Rd6?? Nf3!–+ 24.Qf3 ef3 25.Bf3 fg3 26.hg3 Qa1 27.Kg2 Bc4 28.Nc7 Qe5 29.Rd7–+ h5 30.Nd5 h4 31.Nf4 hg3 32.fg3 Qf4 (32...Qf4 33.Kf2 Rg3 34.Rd8 Kg7 35.Rd7 Kf6 36.Rd6 Ke7 37.Rd3 Bd3 38.a4 Qf3 39.Ke1 Qe2#) 0–1. bratek55 (1675) – klarkikent (1755), kurnik, 2012.

8.c4 Nh5 9.g3 Qe7 10.Nc3 c6 11.Qb3 Kh8 12.Rad1 f5 13.ef5 gf5 (worse is 13...Rf5 14.g4 Rf3 15.Bf3+/-) 14.Ne5 Ng3 15.fg3 Ne5 16.d4 Ng4 17.Bg4 fg4 18.Rf8 Qf8 19.Rf1 (19.d5 Bf5=) 19...Qe7 (better is 19...Bd4!? 20.Kg2 Bf5-/+) 20.Nd1= Bd7 21.d5 cd5 22.cd5 Bb5 23.Bg7 Qg7 24.Rf4 Re8 25.Nf2?? (better is 25.Qc3 Be2 26.Qg7 Kg7 27.Nc3=) 25...Re1 26.Kg2 Bf1 27.Kg1 Bh3 0–1. bratek55 (1645) – cienias321 (1665), kurnik, 2011.

8.c4 Nh5 9.g3 Qe8 10.Qb3 h6 11.Nc3 c6 12.Nh4 Nhf6 13.c5 d5 (13...dc5?! 14.b5 Nb8 15.Rfc1-/+) 14.ed5 cd5 15.Nd5 Nd5 16.Qd5 Kh7 17.Qb3 f5 18.Bf3 Nf6 19.Rfe1 g5? (19...Nd7 20.c6 bc6 21.Bc6+–) 20.Ng2 (better is 20.Re5!? Qd8 21.Nf5 Bf5 22.Rf5 Qd7 23.Bf6 Bf6+–) 20...e4 21.de4 fe4? 22.Bf6 Rf6 23.Be4 Kh8 24.Rad1 Bh3? 25.Bb7 Qf8 26.Ba8 Qa8 27.Qd5 Qf8 28.Qd8 Rf2 29.Qf8 Rf8 30.Rf1 Re8 31.Rf2 Bc3 32.a3 a5 33.Rc2 ab4 34.ab4 Bb4 35.c6 Ba5 36.c7 Rc8 37.Rd8! Rd8 38.cd8Q Bd8 39.Ne3 Bf6 40.Nd5 Bd4 41.Kh1 Bf5 42.Rc4?? Be4 0–1. bratek55 (1700) – koziolekmat (1715), kurnik, 2011.

8.c4 Nh5 9.g3 Ndf6 10.Nc3 Bh3 11.Re1 Qd7 12.Nd5 c6 13.Ne3 Ng4 14.Qb3 Ne3 15.fe3 Bh6 16.Bc1 Nf6 17.Bd2 Ng4 18.Bf1 Bf1 19.Kf1 f5 20.ef5?? (better is 20.Kg2!?-/+) 20...Rf5 (better is 20...Qf5 21.Qd1 Qf3 22.Qf3 Rf3 23.Kg1 Be3 24.Be3 Ne3–+) 21.Kg2 Raf8 22.Rf1? Ne3 23.Be3-/+ Be3 24.c5 d5 25.Rae1 Bd4 26.Nd4 ed4 27.Qd1 Qf7 28.Rf5 Qf5 29.Rf1 Qf1 30.Qf1 Rf1 31.Kf1 Kf7 32.Kf2 Kf6 33.Kf3 Ke5 34.g4 g5 35.a3 b6 36.cb6 ab6 37.a4 Kd6 38.Kg3 Kc7 39.h4 h6 40.hg5 hg5 41.Kf3 c5 42.b5 Kd6 43.Ke2 c4 44.dc4 dc4 45.Kd2 Kc5 46.Kc2 Kb4 47.a5 Ka5 (47...Ka5 48.Kd1 Kb5–+) 0–1. bratek55 (1610) – cienias321 (1700), kurnik, 2011.

8.c4 h6 9.Nc3 Kh7 10.Nd5 Nd5 11.cd5 f5 12.Qc2 Nf6 13.Rac1 Rf7 14.Nd2 f4 15.Bf3 g5 16.h3 h5 17.Qd1 (better is 17.d4!? Re7 18.de5 de5 19.Be2+/-) 17...g4= 18.hg4 hg4 (worse is 18...Bg4 19.d4 Qe7 20.de5 de5 21.Nc4 Bf3 22.Qf3+/- (worse is 22.gf3 Nd7+=)) 19.Be2 Kg6 (19...f3 20.gf3 gf3 21.Bf3 Nd5 22.ed5 Qg5 23.Kh1 Rf6 24.Be4 Kg8–+) 20.d4+/- Qe7 21.de5 de5 22.g3 f3 23.Nf3?? gf3–+ 24.Bf3 Bh3 25.Re1 Rh8 26.Bg2? Bg4?? 27.Qc2+= Bh6 28.Ra1 Bg5 29.Qc3 Nd7 30.f4 ef4?? 31.Qh8+/- (31.Qh8 f3 32.Qg8 Kh6 33.Bf3 Bf3 34.Qh8 Kg6 35.Qa8=) 1–0. bratek55 (1680) – zeta81, kurnik, 2011.

8.c4 Kh8 9.Nc3 c6 10.Qb3 Ng8 11.Rad1 f5 12.ef5 gf5 13.g3 Ndf6 14.Ng5 Qe8 15.f4 Qg6 16.c5 (16.Nf3 Ng4 17.Rde1 Bf6=) 16...d5 (16...ef4 17.Ne6 Be6 18.Qe6 fg3 19.Qd6 gh2 20.Kh1 Nd5 21.Nd5 Bb2–+ (21...cd5?! 22.Bg7 Qg7 23.Qd5=)) 17.Nh3 d4 18.Na4 (better is 18.fe5!? Ng4 19.Nb1+=) 18...Nd5-/+ 19.Bc1 e4 20.de4 fe4 21.Kh1?? (better is 21.Nf2–+) 21...Bh3 22.Bc4 Bf1 23.Rf1 Nge7 24.Nb2 Rad8 25.Bd5 Rd5 26.Nc4 Rh5 27.Nd6 Nf5 28.Nf5 Rhf5 29.Qd1 h5 30.Qe2 Rd5 31.Re1 e3 32.Bb2 h4! 33.Qf3 hg3 34.hg3 Re8 35.Kg2 Qe4 36.Qe4 Re4 37.Kf3 Re8 38.g4 d3 39.Bg7 Kg7 40.f5 Kf6 41.Kf4 Rd4 42.Kf3 e2 43.Rh1 d2 44.Rh6 Ke5 45.Re6 Re6 46.fe6 e1Q 47.e7 Qe4 48.Kg3 Rd3 49.Kh4 Qh7 50.Kg5 Qe7 51.Kg6 Rg3 (51...Rg3 52.g5 Rg5 53.Kh6 Qg7; 51...Rh3 52.g5 Qh7) 0–1. bratek55 (1675) – koziolekmat (1740), kurnik, 2011.

8.c4 Kh8 9.Nc3 c6 10.d4 Ng8 11.de5 de5 12.Qb3 Qe8 13.c5 f5 14.ef5 gf5 15.Bc4 e4 16.Ng5 Nh6? (better is 16...Ne5 17.Ne2 Nc4 18.Bg7 Kg7 19.Qc4 h6+=) 17.Ne6+– Nf6 18.Nc7 (worse is 18.Nf8 Qf8 19.Rfd1 f4+–) 18...Qg6 (18...Qe5 19.Na8 Nhg4+–) 19.Na8 f4 20.Ne2 f3 (20...Bg4 21.Nc7 Be2 22.Be2+–) 21.Ng3 fg2 22.Kg2 Nf5 23.Nc7 Nh4 24.Kh1 Bg4 25.Ne6 Bf3 26.Kg1 Qg4 27.Rfc1 Qh3 28.Bf1 Bg2 29.Nf4 Bf1 30.Nh3 Bh3 31.Ne4! Bg4 32.Nf6 Bf6 33.Bf6 Rf6 34.Qc3 Nf3 35.Kg2 Kg7 36.Kg3 h5 37.h3 Ne5 38.hg4 Ng4 39.Qf6! Nf6 40.f4 Kg6 41.Rh1 Nd5 42.b5! Ne3 43.Kf3 Nf5 (43...Nf5 44.Rag1 Kf6 45.Rh5 cb5+–). bratek55 (1650) – koziolekmat (1765), kurnik, 2011.

8.Nbd2 Re8 9.c4 Nf8 10.Qb3 Ne6 11.g3 a5 12.a3 c6 13.Rac1 a4 14.Qa2 h5 15.h4 Ng4 16.Nh2 Nh2 17.Kh2 Nf8 18.c5 Nh7 19.f4 Qd7 20.Rh1?? Qh3–+ 21.Kg1 Qg3 22.Kf1 Qf4 23.Ke1 Bh6 24.Ba1 Bg4 25.Rf1 Qg3 26.Kd1 Be6 27.Qc2 Qh4 28.Nf3? Qf4 29.cd6 Qc1 30.Qc1 Bc1 31.Kc1 f6 32.d4 ed4 33.Nd4 Rad8 34.Ne6 Re6 35.Bc4 Rdd6 36.Be6? Re6 37.Re1 h4 38.Kd2 g5 39.Kd3 Kf7 40.Bd4 Kg6 41.Bf2 Nf8 42.Rg1 Kh5 43.Kd4 Nd7 44.Rf1 g4 45.Rh1 h3 46.Bg3 Ne5 47.Rf1 Nf3 48.Ke3 Kg6 49.Rb1 f5 50.Kf2 Re4 51.b5 c5 52.b6 f4 53.Bh2 Nd4 54.Bf4 Rf4 55.Kg3 Kg5 56.Rb5 Rf3 57.Kh2–+ Kh4 58.Rc5 g3 59.Kg1 Ne2 60.Kh1 Rf1 0–1. bratek55 (1620) – cienias321 (1690), kurnik, 2011.

8.c4 a5

9.a3 ab4 10.ab4 Ra1 11.Ba1 Re8 12.Qb3 Nf8 13.Nc3 Ne6 14.Nd5 c6 15.Nf6 Qf6 16.g3 h5 17.h4 Bh6 18.Bb2 Ng7 19.Bc1 Bc1 20.Rc1 Bg4 21.Qd1 Ne6 22.Kg2 Bf3 23.Bf3 Nd4 24.Be2 Ra8 25.Qf1 Ra2 26.Re1?? Re2–+ 27.Re2 Qf3 28.Kg1 Qe2 29.Qe2 Ne2 30.Kf1 Nd4 31.f4 b5 32.Kf2 Nc2 33.cb5 cb5 34.fe5 de5 0–1. bratek55 (1620) – cienias321 (1690), kurnik, 2011.

9.a3 Qe7 10.Qb3 c5 11.b5 Nb6 12.Nc3 a4 13.Qc2 Bg4 14.h3 Bf3 15.Bf3 Bh6 16.Bc1 Bf4 17.Bf4 ef4 18.Nd5 Nfd5 19.cd5 Qe5 20.Rac1 Ra5 21.Qc3 Qc3+= 22.Rc3 Rb5 23.Rd1 Ra8 24.d4 c4 25.Be2 Rb3 26.Rdc1 Rc8 27.Kf1 f6 28.Ke1? Kf7 29.Bd1 Rb2 30.R1c2 Rb1 31.Rc1 Rb2 32.R3c2 Rb3 33.Rc3 Re8 34.f3 f5 35.Rb3? ab3 36.Kd2 fe4 37.fe4 Re4 38.Kc3 Re3 39.Kb4 b2 40.Rb1 c3 41.a4 Nd5 42.Kb3 Kf6 43.a5 g5 44.Bf3 Ke6 45.Rd1 h5! 46.Bh5 Kf5 47.Bg4 (47.Bg4 Kf6 48.a6–+). bratek55 (1635) – evgeni (1670), kurnik, 2011.

9.b5 Nc5 10.Nc3 c6 11.a4 Ne8 12.d4 ed4 13.Nd4 Qc7 14.Rc1 (14.Rb1!?+=) 14...Bd4 15.Qd4 Nb3 16.Qe3 Nc1 17.Rc1 f6 18.Qh6 Qg7 19.Qh4 Nc7 20.c5 dc5 21.Bc4 Be6–+ 22.Be6 Ne6 23.bc6 bc6 24.f4 Nd4 25.h3 Rab8 26.Ba3 Qe7 27.Qf2 Rb3 28.Qa2 Rfb8 29.Nb5 cb5 30.Bc5 Qe4 31.Bd4 Qd4 32.Kh1 ba4 33.Qc2 Rb2 34.Qc7 Qd5 35.Rg1 Re8 36.Qc3 Ree2 37.Qg3 a3 38.h4 a2 39.h5 Qh5 40.Qh3 Qh3 (40...Qh3 41.gh3 Rh2#) 0–1. bratek55 – topair (1690), kurnik, 2011.

9.b5 Nc5 10.Nc3 c6 11.a4 Ne8 12.d4 ed4 13.Nd4 Qc7 14.Nf3 Be6 15.Qc2 f5 16.Ng5 Qe7 17.Ne6 Qe6 18.ef5 Rf5 (18...Qf5 19.Qf5 Rf5 20.Rfb1=) 19.Rae1 (19.Bg4!?+/-) 19...Qf7+= 20.Bg4 Re5 (20...Rf4 21.Be2=) 21.Re5 Be5 22.g3 Nc7 23.f4 Bg7 24.Nd1= Bb2 25.Nb2 Re8 26.Bf3 Qe7 27.Qd2 Qd7 28.Re1 Re1= 29.Qe1 N7e6 30.Qc3 d5 31.bc6+/- bc6 32.cd5 cd5 33.Qf6 Ne4= 34.Qe5 N6c5 35.Kg2 h5 36.Be4 Ne4 37.Nd3 Kf7 38.Qh8 Qa4= 39.Ne5 Ke6 40.Qe8?? Kd6 41.Qa4+– Nc5 42.Qa5 d4 43.Qb6 Kd5 44.Nd3! Nd3 45.Qb7 Kc4 46.Qf7 Kc3 47.Qg6 Nc5 (47...Nc5 48.Qh5 Kc4+–) 0–1. bratek55 (1610) – topair (1685), kurnik, 2011.

9.b5 Nc5 10.Nc3 Bg4 11.Nd5 Nd5 12.cd5 Nd7 13.h3 Bf3 14.Bf3 f5 15.d4 f4 16.de5 Ne5 17.Be5 Be5 18.Rc1 h5 19.Qc2 Rc8 20.a4 b6 21.Qc6 Qe7 22.Kh2 Rf7 23.Qb7 Rcf8 24.Rc2 Rh7 25.Rfc1 Rff7 26.Qc8 Kg7?? 27.Qe6 Kh6+= 28.Qe7 Re7 29.Rc4 g5 30.g3 Kg6 31.g4+= h4 32.Kg2 Bb2 33.R1c2 Ba3 34.Be2 Bc5 35.Bd3 Re5 36.Kf3 Rhe7 37.Rc1 Kf6 38.R1c2 Re8 39.Rc1 R5e7 40.R1c2 Ke5 41.Rc1 Rg7 42.R1c2 Ree7 43.Rc1 Ref7 44.R1c2 Re7 45.Rc1 Ref7 46.R1c2 Re7 ½–½. bratek55 (1655) – curryman (1615), kurnik, 2011.

6.Be2 e5

7.0-0 a6 8.a4 b6 9.c4 Bb7 10.Nbd2 c6 11.Qc2 Nbd7 12.Rad1 Qe7 13.d4 ed4 14.Nd4 c5 15.bc5 dc5 16.N4f3 Ne4 17.Ne4 Be4 18.Rd7 Qd7 19.Qe4 Bb2 20.Rd1 Qc7 21.Ng5 Rad8 22.Bd3 Bd4 23.h4 Rfe8 24.Qf3 h6 25.Ne4 Qe5 26.Nf6 Kg7 27.Ne8 Re8 28.Qg4 Qf6 29.Rf1 h5 30.Qd7 Re5 31.Qh3 a5 32.Qg3 Qe7 33.Kh1 Re1 34.f4 Rf1 35.Bf1 Qe3 36.Qe3 Be3 37.g3 f6 38.Kg2 g5 39.hg5 fg5 40.Kf3 Kg6 41.Ke3 Kf6 42.Be2 h4 43.Bg4 hg3 44.fg5 Kg5 45.Kf3 g2 46.Kg2 Kg4 47.Kf2 Kf4 48.Ke2 Ke4 49.Kd2 Kd4 50.Kc2 Kc4 51.Kb2 Kb4 52.Ka2 Ka4 53.Ka1 Ka3 54.Kb1 b5 55.Ka1 Kb3 56.Kb1 a4 57.Ka1 a3 58.Kb1 b4 59.Ka1 Ka4 60.Kb1 b3 61.Ka1 c4 62.Kb1 c3 63.Ka1 Kb4 64.Kb1 Kc4 65.Ka1 Kd3 66.Kb1 Ke2 67.Ka1 Kd2 68.Kb1 c2 69.Ka1 c1Q 0–1. Adjailton (1830) – Peewie (1795), lichess.org, 2020.

7.0-0 Nbd7 8.Nbd2 b6 9.a4 Bb7 10.Nb3 Nh5 11.Bc1 h6 12.h3 Qe7 13.b5 Rfe8 14.a5 Nf8 15.Be3+= Ne6 16.a6 Bc8 17.Ra4 Nc5 18.Nc5+/- dc5 19.Qd2 Kh7 20.Rb1 Bd7 21.c3 Rad8 22.Ne1 Qh4 23.Bh5 Qh5+= 24.Nf3 ½–½. fatou – Duffy, playchess.de, 2002.

7.0-0 Nbd7 8.d4 ed4 9.Bd4 Ne4 10.Bg7 Kg7 11.Qd4 (11.Qd3 Re8-/+) 11...Nef6 (11...Qf6 12.Re1-/+) 12.Nbd2 Re8 13.Bc4 (13.Rfe1 Ne5=+) 13...Ne5 14.Ne5 (14.Rfe1 a5 15.b5 Bg4=+) 14...Re5 (14...de5 15.Qe3-/+) 15.Nf3 Re7 16.Rae1 (16.Rfe1 Be6=+) 16...c6 (better 16...Be6=+) 17.Bf7?? (better 17.Re7 Qe7 18.Re1=) 17...Rf7–+ 18.Ng5 Re7 19.Re7 (19.Ne4 Re6–+) 19...Qe7 20.Nh7 (20.Qd2–+) 20...Kh7 21.Qh4 (21.c4 Qe5 22.Qe5 de5–+) 21...Kg7 22.g3 (22.Rd1 Bf5 23.c4 Qe2–+) 22...Bf5 (better 22...Bg4 23.Qg5 Bh3 24.Qd2 Bf1 25.Kf1–+) 23.Kg2 (23.Qc4 Re8 24.h4 Qe2 25.Qe2 Re2–+) 23...Qe4 (23...Rh8 24.Qc4 d5 25.Qd4 Bh3 26.Kg1–+) 24.Kg1 (24.Qe4 Be4 25.f3 Bc2–+) 24...Qh4 (better 24...Bg4!? 25.h3 Rh8 26.Qh8 Kh8 27.hg4 Qc2 28.a3–+) 25.gh4 Bh3 (25...Bc2!? 26.Re1 Nd5 27.Re2–+) 26.Re1 (26.Rd1 Re8 27.f3 Re2–+) 26...Nd5 27.f3 (27.a3 b5 28.f3 a5–+) 27...Rf8 (27...Nb4 28.Re7 Kf6 29.Rb7 Nc2 30.a4–+) 28.Kf2 (28.c4 Nb4 29.Re3 Na2–+) 28...Nf4 (better 28...Bg4! 29.Kg3 Bh5 30.Kg2–+) 29.Re7 Rf7 (29...Kf6!? 30.Rb7 Bf5 31.Rc7–+) 30.Rf7 Kf7 31.Kg3 Nd5 32.Kh3 Nb4 (32...Nb4 33.Kg4 Na2–+) 0–1. aravind555 (1610) – steffofo (1635), lichess.org, 2018.

7.0-0 Nfd7 8.c4 Nc6 (8...a5 9.b5=) 9.a3 (9.b5 Ne7+=) 9...Nd4 (9...f5 10.Nc3=) 10.Nd4+= ed4 11.Nd2 Ne5 (11...c5!?+=) 12.Bd4+/- Nf3?? (better is 12...f5+/-) 13.Nf3+– (worse is 13.gf3 Bd4 14.Rb1 Qg5 15.Kh1 Bh3-/+; 13.Bf3?! Bd4 14.Ra2 Be5+/-) 1–0. DEFFM – GuestGKMN, freechess.org, 2018.

7.0-0 Nh5 8.d4 Nd7 9.Re1 Nf4 10.Bf1 ed4 11.Bd4 Ne5 12.Ne5 de5 13.Be3 a5 14.Nd2 ab4 15.Bc5 Re8 16.Bb4 Qg5 17.Qf3 Bf8 18.Bf8 Kf8 19.Nc4 Be6 20.a4 Bc4 21.Bc4 Qe7 22.Reb1 Ra7 23.Rb5 c6 24.Rb6 Ne6 25.Be6 Qe6 26.Rab1 Re7 27.Qa3 Kg7 28.h3 Rd7 29.Qc3 Ra4 30.f3 Ra7 31.Qc5 Qe7 32.Qe7 Re7 33.Kf2 Kf8 34.Ke3 Rd7 35.R1b2 Ke7 36.h4 h5 37.Ke2 Kd8 38.Ke3 Kc8 39.Ke2 Ra3 40.Ke1 Ra1 41.Ke2 Rh1–+ 42.Ra2 Rh4 43.Ra8 Kc7 (43...Kc7 44.Rb1 Rh2–+) 0–1. Barroso,Wildred – Leon,Virgilio, Torneo, 2000.

7.0-0 Nh5 8.d4 f6 9.h3 (9.Bc4 Kh8+= 10.Nbd2 Nf4 11.a3 f5 12.Bb3 fe4) 9...Nf4 (9...Be6 10.Bc1 d5 11.de5 de4 12.Nd4 Qe7) 10.Bc4 Kh8 (10...Be6 11.Be6 Ne6 12.Qd3 Qe8) 11.Nbd2 (11.Bc1 f5 12.Bf4 ef4) 11...g5 (11...f5 12.ef5 (worse is 12.de5 fe4 13.Ne4 d5-/+; 12.d5 Qf6) 12...e4 13.f6+=; 11...Nc6 12.b5 Nd4) 12.Nh2 (12.Re1!?+= ed4) 12...Nc6 (12...f5 13.de5 fe4 14.Be2+=) 13.de5 fe5 14.a3 Ne7 (14...a6 15.Ng4=) 15.Ndf3 (15.Ng4 Qe8=) 15...Neg6 (15...Qe8 16.Re1= (worse is 16.Ng5 Qg6 17.Nhf3 h6-/+)) 16.a4 (16.Ng4 c6=) 16...Qf6+= 17.Ra3 (17.Bc1+=) 17...h5 (17...Nh4!? 18.Nh4 gh4-/+) 18.Ne1 (18.a5 Bd7=) 18...Kh7 (18...a5 19.b5=) 19.Kh1 (19.Nd3 a5 20.b5 Bh6+=) 19...c6 (19...a5!? 20.b5 Ne7=) 20.g3+/- Nh3 21.Qh5 Bh6 22.Rf3 Qg7? 23.Rf8 Qf8= 24.Ng4?? Bg4–+ 25.Qg4 Nf2 26.Rf2 Qf2 27.Qd7 Kh8 28.Qd6? Qe1 29.Kh2 Rf8 30.Be5= Bg7 31.Qg6 Rf2 32.Kh3 Qh1 33.Kg4 Qd1 34.Kg5 Qd8 35.Kg4 Qd7 36.Be6 Qd1 37.Kg5 ½–½. Pietrzak,W – Kumor, Krakow, 2000.

7.Bc1 Bg4 8.Bg5 c6 9.Nbd2 Nbd7 10.a4 Qc7 11.0-0 b5 12.h3 Bf3 13.Bf3 ba4 14.Ra4 Nb6 15.Ra3 Nfd7 16.c4 c5 17.b5 h6 18.Bh4 g5 19.Bg3 f5 20.ef5 Rad8 21.Bg4 Nf6 22.Ne4 Nbd7 23.Qe2 Nb6 24.Rfa1 Ra8 25.Bf3 Rfb8 26.Nf6 Bf6 27.Ba8 Ra8 28.Qf3 Qb8 29.Qc6 Bd8 30.f3 Kf7 31.Be1 Kf6 32.g4 Nc8 33.Qe8 Be7 34.Qg6 1–0. grahamtrue (2245) – cmulligan (2230), net–chess.com, 2011.

7.0-0 a5

8.b5 b6 9.Nbd2 (9.c4 Nbd7+=) 9...Nbd7 10.d4 ed4 11.Nd4 (11.Bd4 Re8=) 11...Nc5 12.Nc6 (12.Bf3 Na4 13.e5 de5=) 12...Qe8 e4 becomes the focus of attention 13.e5 (13.Bc4 A) worse is 13...Nfe4 14.Bg7 Kg7 15.Re1+–; B) worse is 13...Nce4 14.Re1 d5 15.Bf6 Bf6 16.Bd5 Nd2 17.Re8 (17.Qd2?! Qd7+/-) 17...Re8 18.c3+– (18.Qd2 Ba1 19.Nd8 Rd8 20.Bf7 Kf7 21.Qd8 Kg7+–); C) 13...Be6=) 13...Nfd7 14.Re1 Ne5 15.Bf3 Nf3 (15...Bb7 16.Rb1=) 16.Qf3 Be6 (worse is 16...Bb2 17.Re8 Re8 18.Rb1+–) 17.Bf6 Qd7? (better is 17...Bf6!? 18.Qf6 h6=) 18.Ne7+/- Kh8 19.Qc3 Qe7 20.Bg7 (20.Be7?? Bc3 21.Bf8 Bd2 22.Re6 Ne6–+ (22...Rf8?! 23.Re2 Bc3 24.Rd1–+)) 20...Kg8 21.Bf8 Qf8 (21...Rf8 22.Ne4 Ne4 23.Re4+/-) 22.Ne4 (22.Nb3 Nd7+/-) 22...Qg7 (22...Ne4 23.Re4 Qg7 24.Qg7 Kg7 25.c4+/-) 23.Nf6 Kh8 24.a4 (24.Qf3 Rc8+/-) 24...Nd7 (24...Rc8 25.Ra3+/-) 25.Qc6 Nf6? (better is 25...Rd8 26.Nd5 Bd5 27.Qd5 Nc5+/-) 26.Qa8+– Ng8 (26...Qg8 27.Qc6 Qd8+–) 27.Qc6 Qf6 (27...Qd4 28.Qc7 Qc5 29.Qc5 dc5 30.Rad1+–) 28.Qc7 Kg7 (28...Bf5 29.Qb6 Bc2 30.Qa5+–) 29.Qb6 Nh6 (29...Qc3 30.Qd6 Nf6 31.Qd3+–) 30.Qd6 (30.Qa5 Ng4 31.Qd2 Bc4+–) 30...Nf5 31.Qe5 1–0. DEFFM – GuestNBPZ, freechess.org, 2018.

7.0-0 c6

8.a4 a6 9.c4 Bd7 10.Nc3 Qe8 11.d4 (11.a5!?+=) 11...ed4= 12.Nd4 Ne4 13.Ne4 Qe4 14.Rb1 b5 (14...Qf4!?+=) 15.ab5+= cb5?? (15...ab5 16.Nb5 Bb2 17.Rb2-/+) 16.cb5 (16.Bf3 Qf4 17.Ba8 Bd4 18.Bd4 bc4+–) 16...Bb5?? (better is 16...Qb7 17.ba6 Na6+/-) 17.Nb5 ab5 18.Bb5 Rd8 19.Bd3 Qb7 20.Re1 Nc6 21.b5 Ne5+= 22.Be4 d5 23.Bd3 Nd3 24.Qd3 d4 25.Ba3 Qb6 26.Red1 Rac8 27.Bb2 Rd5 28.Ba1 Rcc5 29.g3 Rb5-/+ 30.Rb5 Rb5 31.Bd4= Bd4 32.Qd4 Qe6 33.Ra1 Qc6 34.h4 h5 35.Re1 Rb3 36.Qa1 Rf3 37.Re2 Rc3 38.Re1 Rc5 39.f3 Kh7 40.Qd4 Rc3 41.Re8?? Rc1–+ 42.Kf2 Qe8 43.Qd2 Ra1 44.Kg2 Qe6 45.Kf2 Ra2 (45...Ra2 46.Qa2 Qa2 47.Kf1 Qh2–+) 0–1. Schmitt,Cecilia – Ambrosio,Camili, Pan American–ch U12 Girls, 1998.

8.a4 Re8=.

8.Nbd2 Qe7=.

8.Nbd2 Nh5 9.d4 Nf4 10.de5 de5 11.Nc4 (11.Ne5 Qg5 12.g3 Be5–+ (12...Ne2?! 13.Qe2 Qe7 14.f4=)) 11...f6 12.Qe1 Be6 13.Rd1 Qc7 14.a3 Na6 15.Bc1 Ne2 16.Qe2 Rfd8 17.Be3 b5 18.Nb2 Qf7 19.Rd8 Rd8 20.Nd2 (20.Rd1 Rd1 21.Qd1 Qe7=) 20...f5= 21.f3 f4 22.Bf2 g5 23.Rd1 h5 24.Nb3 Rd1 25.Qd1 g4 26.Qd8 Kh7 27.Nd2 Bf6 28.Qd6 ½–½. Woschkat,Karl_Heinz – Cross,Andy, internet, 1999.

7.0-0 Nc6

8.b5 Ne7

9.c4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 b6 13.Qb3 Be6 14.Nbd2 Qc8 15.Qb4 c5 16.bc6 Qc6 17.Ne5 Qc5 18.Qc5 bc5 19.Nef3 Nc6 20.Nb3 Nh5 21.Bg7 Kg7 22.Nfd2 Nf4 23.Bf3 Nd3 24.e5 Nde5 25.Bc6 Nc6 26.Ne4 Bc4 27.Nbd2 Bf1 28.Kf1 Rd8 29.f4 f5 30.Ng5 Rd7 31.Nc4 d5 32.Nb6 Rd6 33.Nc8 Rd8 34.Ne6 Kf7 35.Nd8 Nd8 36.Nd6 Ke6 37.Nb7 Nb7 38.Ke2 d4 39.Kd3 Kd5 40.h3 c4 41.Kd2 Ke4 42.g3 Kf3 0–1. Adjailton (1900) – alfareed (1745), lichess.org, 2019.

9.Nbd2 c5 10.c4 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 b6 14.Nb3 Bb7 15.Qa7 Qc7 16.Ra1 Rb8 17.Qa2 Nc8 18.Bc3 Ra8 19.Qb2 Ra1 20.Na1 Qb8 21.Nc2 Qa7 22.Ne3 Ne7 23.h3 Nh5 24.Nd5 Nd5 25.ed5 Nf4 26.Bd1 f5 27.Qd2 Qa3 28.Ng5 Bc8 29.Bc2 Qc3 30.Qc3 Ne2 31.Kh2 Nc3 32.h4 h6 33.Nf3 Kf7 34.Nd2 Kf6 35.f3 g5 36.h5 Bd7 37.Kg1 Ne2 38.Kf2 Nd4 39.Bd1 g4 40.fg4 fg4 41.Ne4 Ke7 42.Kg3 Nf5 43.Kg4 Ne3 44.Kf3 Nd1 45.g4 Bf6 46.Ke2 Nb2 47.Kd2 Na4 48.Kc2 Bg4 49.Kb3 Be2 50.Ka4 Bd3 51.Nd2 e4 52.Kb3 e3 53.Nf3 Be4 54.Ne1 Bd4 55.Ka2 e2 56.Kb3 Bf2 57.Nc2 Bc2 58.Kc2 e1Q 59.Kd3 Qe3 60.Kc2 Qd4 0–1. Adjailton (1835) – Pawnzork (1805), lichess.org, 2020.

9.c4 Nh5

10.Nbd2 Nf4 11.Re1 Ne2 12.Qe2 f5 13.d4 ed4 14.Bd4 Re8 15.Bg7 Kg7 16.e5 Ng8 17.Qd3 Re6 (17...de5 18.Qc3+= (18.Ne5? Qd3 19.Nd3 Rd8–+)) 18.ed6 Rd6 19.Qc3 Nf6 20.Re2 Re6 21.Rae1 Qg8 22.Re6 Be6 23.Ng5 Re8 24.Qg3 Re7?? 25.Qe5+– Kh6 26.Qf6 (26.Qf6 Qg7 27.Qg7 Kg7 28.Re6+–) 1–0. Kappel,Ray – Ausan,Leo Tito Jr, 37. LSS No Engine Cup Preliminary, 2011.

7.0-0 Be6

8.Nbd2 Re8 9.c4 Nbd7 10.Qc2 Nh5 11.Nb3 f5 12.Nfd2 f4 13.Bh5 gh5 14.d4 Qg5 15.d5 Bh3 16.g3 fg3 17.Nf3 gh2 18.Kh2 Qg2 0–1. Adjailton (1865) – N3ur0na1pl4sticity (1735), lichess.org, 2020.

8.d4 Ne4 9.de5 d5 10.c4 c6 11.cd5 Bd5 12.Nbd2 Nd2 13.Qd2 Nd7 14.Rad1 Qc7 15.Rfe1 b5 16.a3 a5 17.Bc3 a4 18.Qd4 Rad8 19.Qe3 Rfe8 20.Qd2 Be5 21.Be5 Ne5 22.Ne5 Re5 23.Bf3 Re1 24.Qe1 Bf3 25.Rd8 Qd8 26.gf3 Qd3 27.Qe3 Qb3 28.Kg2 Kg7 29.Qe5 f6 30.Qc7 Kh6 31.Qc6 Qa3 32.Qb5 Qb3 33.Qc5 a3 34.b5 a2 35.Qa7 Qb2 36.Qe3 g5 37.b6 a1Q 38.Qe7 Qe5 39.Qf8 Kg6 40.Qg8 Kh6 41.Qf8 Kh5 42.Qg7 Qb1 43.Qf7 Qg6 44.Qg6 Kg6 45.b7 Qc7 46.b8Q Qb8 0–1. Chess4Win (1750) – ATULA (1740), lichess.org, 2018.

7.0-0 Bg4

8.c4 Re8 9.Nbd2 Nc6 10.b5 Ne7 11.Qb3 c6 12.a4 Rb8 13.h3 Bf3 14.Nf3 Nd7 15.Rad1 Nc5 16.Qa3 f5 17.ef5 Nf5 18.Rfe1 e4 19.Bg7 Kg7 20.de4 Re4 21.Nd2 Re7 22.Bg4 Qe8 23.Qc3 Kg8 24.Nf3 Ne4 25.Qb3 Qf7 26.Nd4 Nd4 27.Rd4 Qf2 28.Kh2 Qe1 29.c5 Kh8 30.bc6 Nc5 31.Qd5 Qe5 32.Qe5 Re5 33.c7 Rbe8 34.Rd6 1–0. Adjailton (1830) – sshunterr (1790), lichess.org, 2020.

8.Nbd2 a5 9.b5 a4=.

8.Nbd2 Nh5 9.h3 Be6 10.g4 Nf4 11.c4 Nh3 12.Kg2 Bg4 13.Ne5 Nf4 14.Kg3 Be2 15.Qb3 Qg5 16.Ng4 Qg4 0–1. Adjailton (1845) – e97 (1775), lichess.org, 2019.

8.h3 Bd7 9.a4=.

8.h3 Bf3 9.Bf3 Nc6 10.c3 b5 (10...a6 11.Re1=) 11.a4+= a6 12.ab5 (12.Bc1 Qd7+=) 12...ab5 13.Ra8 Qa8 14.Na3 Rb8 15.Qc2 (15.Qe2 Qb7+=) 15...Nd7 (15...Qb7 16.Ra1+=) 16.Be2 (16.Ra1 Qb7 17.Bc1+=) 16...Nb6 (16...Qb7 17.Ra1+=) 17.f4 (better is 17.Nb5!? Qa4 18.Na3+/-) 17...Na4+= 18.Nb1 (18.fe5 Nb2 19.Qb2 de5+=) 18...Nb2 (18...ef4 19.Rf4 Nb4 20.cb4 Qa7 21.Kf1 Nb2 22.g3-/+) 19.Qb2 ef4 (19...Qa7 20.Kh1=) 20.Rf4 (20.Na3=) 20...Be5 (20...Qa7 21.Kf1=) 21.Rf1 (21.Rf3 Bg7+=) 21...Qa7 22.Kh1 Bg7 (22...Qe3 23.Rf3 Qg5 24.d4+=) 23.d4 Nd8 24.Na3 (better is 24.Nd2+=) 24...c5? (24...c6!?=) 25.dc5 (25.Nb5!? Qe7 26.bc5 dc5 27.Qc2+–) 25...dc5 26.Nb5 Qe7 27.Bd3 (27.bc5 Rc8+/-) 27...cb4 (27...Qd7 28.Qe2 cb4 29.cb4=) 28.Qb4+= Qb4 29.cb4 Nc6 (29...Bf8 30.Bc4=) 30.Rb1 (30.Bc4 Ne5 31.Be2 Bf8=) 30...Bf8= 31.Nc3 (31.Bc4 h6= (worse is 31...Nb4 32.Rf1+/-)) 31...Rb4 32.Rb4 Bb4 33.Nd5 Bd6 34.g4 ½–½. pushtiu – croach, net–chess.com, 2017.

8.c4 Nbd7

7.0-0 h6

8.Nbd2 Kh7 9.c4 Nh5 10.g3 f5 11.ef5 Bf5 12.Kh1 Bh3 13.Rg1 Nf6 14.Qc2 Ng4 15.Ne4 c6 16.Nh4 d5 17.Bg4 Bg4 18.Nc5 d4 19.f3 Rf3 20.Ne6 Qf6 21.Ng7 Kg7 22.Nf3 Bf3 23.Rg2 Nd7 24.Kg1 Bg2 25.Qg2 Rf8 26.Rf1 Qf1 27.Qf1 Rf1 28.Kf1 Nf6 29.a4 Ng4 30.Kg2 Ne3 31.Kf3 Nd1 32.Bc1 Nc3 33.h4 Na4 34.g4 Nc3 35.h5 g5 36.Bb2 Nd1 37.Ba3 Ne3 38.Ke2 Ng4 39.b5 Nf6 40.bc6 bc6 41.Bd6 Nd7 0–1. Adjailton (1905) – JamBow (1790), lichess.org, 2020.

8.c4 Kh7

6.Be2 Bg4

7.0-0 c6 8.Nbd2 Qc8 9.c4 Na6 10.a3 Nc7 11.Qb3 c5 12.b5 b6 13.a4 a5 14.e5 de5 15.Be5 Qd7 16.Rfe1 Rac8 17.d4 cd4 18.Nd4 Be2 19.Re2 Ne6 20.Nc6 Nc5 21.Qg3 Qd3 22.Qd3 Nd3 23.Ne7 Kh8 24.Nc8 Rc8 25.Nf3 Ne5 26.Ne5 Ng4 27.Ng4 Ba1 28.Rc2 Bd4 29.h3 Kg7 30.Nh2 h5 31.Nf3 Bc5 32.Ne5 f6 33.Nd7 Bd4 34.Kf1 Rc7 35.Nb8 Rb7 36.Nc6 Bc5 37.f3 Rd7 38.Ke2 Rd6 39.Rd2 Rd2 40.Kd2 Kf7 41.Kd3 Ke6 42.Ke4 f5 43.Kf4 Bd6 44.Kg5 Kf7 45.Nd8 Kg7 46.Ne6 Kf7 47.Nd4 Bc5 48.Nc6 Bd6 49.Nd8 Kg7 50.Nb7 Be7 51.Kf4 Kf6 52.Ke3 g5 53.g4 h4 54.gf5 Kf5 55.Kd4 Kf4 56.c5 bc5 57.Nc5 Kf3 58.Nb7 Bb4 59.Nd8 g4 60.b6 Bd6 61.hg4 h3 62.Nf7 Bb8 63.Ng5 Kg4 64.Nh3 Kh3 0–1. Adjailton (1855) – Boris75383 (1820), lichess.org, 2020.

7.0-0 Qc8 8.Nbd2 a6 9.c4 b6 10.a4 c5 11.b5 ab5 12.ab5 Ra1 13.Qa1 Nbd7 14.d4 Qa8 15.e5 Ne4 16.Ne4 Qe4 17.Re1 Ra8 18.Qc1 cd4 19.Nd4 Be2 20.Re2 Qb7 21.e6 Nc5 22.ef7 Kf7 23.Qf4 Kg8 24.Nc6 Bb2 25.Rb2 Nd3 26.Qe4 Ra1 0–1. Adjailton (1830) – Maks27 (1625), lichess.org, 2020.

7.0-0 Nbd7 8.c4 a6 9.Nbd2 c5 10.a3 Rb8 11.Qc2 b5 12.bc5 Nc5 13.d4 Na4 14.Bc1 Rc8 15.e5 Nd7 16.ed6 ed6 17.Ne4 Bf3 18.Bf3 Bd4 19.Rb1 Rc4 20.Qd3 Bg7 21.Nd6 Ne5 22.Qd5 Nf3 23.gf3 Nc3 24.Qd3 Nb1 25.Qb1 Qd6 26.Be3 Bd4 27.Rd1 Qb6 28.Bd4 Rd4 29.Rf1 Qb8 30.Kg2 Rh4 31.Rh1 Qf4 32.Qd3 Rh5 33.h3 Rg5 34.Kf1 Qc4 35.Qc4 bc4 36.Ke2 Rc8 37.Rc1 Rd5 38.Ke3 Rd3 39.Ke4 Ra3 40.Kd4 a5 0–1. Adjailton (1890) – dfin92 (1750), lichess.org, 2020.

7.Nc3 Nbd7 8.0-0 e5 9.a4 b6 10.Nb5 a6 11.Na3 c5 12.b5 ab5 13.Nb5 Nh5 14.Nd6 Qe7 15.Nb5 Nf4 16.c4 Rfe8 17.Nc7 Ne2 18.Qe2 Nf6 19.Na8 Ra8 20.Qe3 Bd7 21.Ne5 Ba4 22.d4 cd4 23.Qd4 Rd8 24.Qb6 Bd7 25.Ra7 Ne4 26.Nd7 Rd7 27.Rd7 Qd7 28.Qb8 Bf8 29.Ba3 Nd6 30.Rd1 Qe6 31.Bd6 h5 32.Qf8 Kh7 33.c5 Qe2 34.Qf7 Kh6 35.Bf4 1–0. Adjailton (1745) – ymacine (1640), lichess.org, 2020.

7.Nbd2 Nbd7 8.0-0 e6 9.a4 a6 10.c4 c5 11.b5 ab5 12.ab5 b6 13.Ra8 Qa8 14.Qa1 Bf3 15.Qa8 Ra8 16.Bf3 Ra2 17.Rb1 Ne5 18.Be2 Ned7 19.f4 e5 20.g3 ef4 21.gf4 Ne8 22.Bg7 Rd2 23.Bg4 Kg7 24.Bd7 Nf6 25.Bc6 Rd3 26.e5 de5 27.fe5 Ng8 28.Rf1 Rd8 29.Bd5 f6 30.e6 Ne7 31.Rd1 Nd5 32.cd5 Rd5 33.Rd5 1–0. Adjailton (1840) – Loetje (1765), lichess.org, 2019.

7.Nbd2 Bf3 8.Nf3 e5 9.0-0 Nc6 10.b5 Nb8 11.c4 b6 12.a4 Nbd7 13.Qc2 Nc5 14.Nd2 Ne6 15.f3 Nh5 16.g3 Qg5 17.Kf2 Nd4 18.Bd4 ed4 19.Rg1 Qe3 20.Kg2 f5 21.Nf1 Qh6 22.g4 fg4 23.fg4 Nf4 24.Kh1 Be5 25.Qd2 Qh4 26.Bf3 Nh3 27.Qg2 Ng1 28.Kg1 Rf4 29.h3 Raf8 30.Nd2 Kh8 31.a5 ba5 32.Ra5 Qe1 33.Kh2 Rf3 0–1. Adjailton (1800) – rtcarbajosa (1745), lichess.org, 2019.

5.e4 e6

6.Be2 b6 7.0-0 Bb7 8.c4 c5 9.a3 cb4 10.ab4 d5 11.e5 Ng4 12.d4 dc4 13.Bc4 Bf3? (better is 13...a6+=) 14.Qf3+– (14.gf3?! Nh6=) 14...Qh4 15.h3 h5?? (better is 15...Ne5 16.de5 Nd7+–) 16.Qa8 Na6 (16...Ne5 17.g3 Nbc6 18.Qc6 Nc6 19.gh4+–) 17.Qf3 Nb4 18.hg4 hg4 19.Qg3 Qh5 20.Ba3 a5 21.Bb4 ab4 22.Nd2 Bh6 23.Ne4 Kg7 24.Nf6 Qf5 25.Rab1 Rh8 26.Rb4 Bf4 27.Ne8! Re8?? 28.Qh4 Rh8?? 29.Qf6!+– Qf6 30.ef6 Kf6 31.g3 Bc7 32.Rfb1 Rd8 33.Be2 Rd4 34.Rd4 Be5 35.Rg4 Bc7 36.Rc4 Bd8 37.f4 g5 38.fg5 Kg5 39.Kf2 Kf5 40.Rd1 Ke5 41.Rd8 f5 42.Rc6 b5 43.Rdd6 b4 44.Re6 Kd4 45.Red6 Ke4 46.Rb6 b3 47.Rb3 f4 48.Bf3 Kf5 49.Rb5 1–0. bratek55 (1705) – bazyllo (1685), kurnik, 2011.

6.Be2 b6 7.0-0 Bb7 8.c4 d5 9.e5 Nfd7 10.d4 c5 11.bc5 bc5 12.cd5 Bd5 13.Nc3 Bb7 14.d5 (better is 14.Ba3!?+=) 14...ed5+= 15.Nd5 Nb6 (better is 15...Ne5!? 16.Ne5 Qd5 17.Qd5 Bd5+=) 16.Nf6= Kh8 17.Qd8 Rd8 18.Rfd1 N8d7 19.Rd6 Bf8?? (19...Nf6 20.Rd8 Rd8 21.ef6=) 20.Rd2 (better is 20.Nd7 Bd6 21.ed6 Kg8 22.Nf6 (22.Nc5?! Bd5+–) 22...Kg7 23.Rc1+–) 20...Nf6+= 21.Rd8 Rd8 22.ef6 Bf3 23.Bf3 Nc4 24.Bc3 Rd3 25.Be1 Ne5 26.Be2 Ra3 27.Bc3?? Rc3–+ 28.f4 Nd7 29.Rd1 Nf6 30.Rd8 Kg7 31.g4 Ne4 32.Rd7 Ra3 33.Bc4 Nd6 34.Bd5 c4 35.Rc7 Ra2 36.h4 a5 37.f5 gf5 38.gf5 Ra3 39.f6 Kf6 40.Rc8 Be7 41.Bc4 Nc4 42.Rc4 a4 43.Rf4 Kg7 44.Re4 Kf8 45.Kf2 Ra2 46.Kf3 a3 47.Ra4 Ra1 48.Kg2 a2 49.Ra7 Kg7 50.h5 Bf6 51.Ra6 Rb1 52.Ra2 Rb2 53.Rb2 Bb2 54.Kg3 Kh6 55.Kg4 Bf6 56.Kf5 Kh5 57.Kf4 h6 58.Kg3 Kg6 59.Kh3 h5 60.Kg3 Be5 61.Kh4 Bd4 62.Kh3 Be3 63.Kh4 Bf4 64.Kh3 ½–½. bratek55 (1690) – jarabedepalo (1735), kurnik, 2011.

6.e5 Nd5 7.a3 a5 8.c4 Ne7 9.d4 ab4 10.ab4 Ra1 11.Ba1 c5?? (better is 11...d5=) 12.bc5 Nf5 13.Bd3 Nc6 14.Bf5 ef5 15.0-0 b6 16.cb6 Qb6 17.Nc3 Ba6 18.Nd5 Qa5 19.Bc3 (19.Qb3 Rb8 20.Ne7 Kf8 21.Nc6 Rb3 22.Na5 Ra3+–) 19...Qa3 (19...Qa2!? 20.Nb6 Bc4+/-) 20.Nd2 Rb8 21.Qa1 Qa1 22.Ra1 Bc8 23.f4 d6 24.Kf2 de5 25.fe5 f6 26.Nf3 fe5 27.Ne5 Ne5 28.de5 Bb7? 29.Rb1 Bf8 30.Nf6 Kf7 31.Nd7 Bc6 32.Nb8 Bc5 33.Kf1 Be4 34.Rd1 g5 35.Nd7 f4 36.Nc5 (36.Nc5 Bc6 37.e6 Kg6 38.Rd6+–) 1–0. bratek55 (1685) – klarkikent (1745), kurnik, 2012.

5.g3 b6

6.Nbd2 Bb7

7.Qc1 d6 8.Bg2 e5 9.0-0 Nbd7 10.a3 Rb8 11.e4 c5 12.c3 Re8 13.Qc2 Nf8 14.Qb3 Ne6 15.b5 a6 16.a4 ab5 17.ab5 Ra8 18.Rfd1 Qc7 19.Ra3 Ra3 20.Ba3 Ra8 21.Ra1 Bc8 22.Bb2 Qb7 23.Ne1 Ra1 24.Ba1 Qa8 25.Bb2 Bb7 26.Nc2 Bf8 27.Bh3 Ng5 28.Bg2 Bc8 29.h4 Ne6 30.Nc4 Qb7 31.Bc1 Ng7 32.Bd2 Be6 33.N2e3 Ng4 34.Ng4 Bg4 35.Ne3 Be6 36.c4 f5 37.Qc2 fe4 38.Be4 Qd7 39.Ng2 Bf5 40.Bd5 Be6 41.Bc6 Qc8 42.Bg5 Nf5 43.Qd2 Nd4 44.Be4 Bf5 45.Qe3 Be4 46.Qe4 Qf5 47.Qf5 Nf5 48.Ne3 Ne3 49.Be3 Kg7 50.Kg2 h6 51.g4 Be7 52.Kg3 g5 53.h5 Kf6 54.f3 Ke6 55.Kf2 1–0. linakip – vivapol, kurnik, 2011.

7.Bg2 c5 8.bc5 bc5 Opening the b–file gets White a lot of play 9.0-0 d5 10.c4 d4 11.Rb1 Qc8 (11...Bc6!?=) 12.Nb3 Nbd7 13.Bc1 (13.Na5 Rb8+=) 13...e5 (13...Rb8 14.Bf4 Bf3 15.Bf3=) 14.Na5+= White fights for the Initiative 14...Bf3 15.Bf3 Rb8 (better 15...e4!? 16.de4 Ne5+=) 16.Nc6+– Rb1 17.Ne7 Kh8 18.Nc8 Rc8 19.Qa4 Nb6 (better 19...Rc7+–) 20.Qa7 Ra8 (20...e4 21.Bg5 Rf1 22.Kf1 ef3 23.Qb6 fe2 24.Ke2 Ng4+–) 21.Ba8 (21.Ba8 Ng8 22.Bg2+–) 1–0. Maestro – Benkol, internet, 2020.

7.Bg2 Nc6 8.a3 a5 9.b5 Na7 10.a4 c6 11.c4 d5 12.Qb3 cb5 13.cb5 e6 14.0-0 Rc8 15.Be5 Nd7 16.Bg7 Kg7 17.Qb2 f6 18.Rac1 Nc5 19.Qa3 Qe7 20.Ra1 Rc7 21.Nd4 e5 22.N4b3 Nb3 23.Qe7 Re7 24.Nb3 d4 25.Nd2 Bg2 26.Kg2 Rc7 27.Ne4 Rfc8 28.Rfe1 f5 29.Nd6 Rd8 30.Nc4 Nc8 31.Ne5 Nd6 32.Nc6 Rdc8 33.e3 Kf6 34.ed4 Nb7 35.d5 Rd7 36.Re6 Kf7 37.Rae1 Rd5 38.Re7 Kf6 39.Rb7 Rd3 40.Rb6 Ra3 41.Ra6 Ra4 42.Ra5 Ra5 43.Na5 Rb8 44.Nc6 Rb5 45.Re8 h5 46.h4 Rc5 47.Nd4 Rd5 48.Nf3 Rd3 49.Ra8 Kg7 50.Ra7 Kh6 51.Ra6 Rd5 52.Rc6 Rb5 53.Nd4 Rd5 54.Ne6 Re5 55.Nf4 Rb5 56.Ng6 Rc5 57.Rc5 Kg6 58.f4 (58.f4 Kf6 59.Rc6 Kg7 60.Kf3+–) 1–0. linakip – rudol1, kurnik, 2011.

7.Bg2 d6 8.0-0 c5 9.a3 Nc6 10.Qc1 Rc8 11.Nb3 cb4 12.ab4 Nb4 13.c3 Nbd5 14.Ra7 Ba8 15.c4 Nb4 16.Bc3 Nc6 17.Ra2 Qc7 18.Qb2 Nh5 19.Bg7 Ng7 20.Rfa1 Nb4 21.Ra4 Nc6 22.Nbd4 Nd4 23.Nd4 Bg2 24.Kg2 Qd7 25.Kg1 Rb8 26.Ra7 Qd8 27.Nc6 (27.Nc6 Qe8 28.Nb8 Qb8 29.Re7+–) 1–0. linakip – popeti, kurnik, 2011.

7.Bg2 d6 8.0-0 e5 9.Qc1 Nbd7 10.a3 Rc8 11.e4 c5 12.c4 cb4 13.ab4 a5 14.b5 Nc5 15.Qb1 Na4 16.Ra4 Rc5 17.Qa2 Nh5 18.Nb3 Rc8 19.Bc1 f5 20.Nfd2 f4 21.g4 Nf6 22.f3 g5 23.Re1 Rf7 24.Nf1 h6 25.Bb2 h5 26.h3 hg4 27.hg4 Qd7 28.Kf2 Bh6 29.Nh2 Rh7 30.Rh1 Bf8 31.Qa1 Bh6 32.d4 Re8 33.d5 Ree7 34.Nd2 Kg7 35.Ba3 Ng8 36.Qb2 Kg6 37.Qc2 Bf8 38.Bb2 Bc8 39.Qd1 Bg7 40.Qg1 Nf6 41.Nhf1 Rh1 42.Qh1 Bf8 43.Ra1 Rh7 44.Qg1 Bg7 45.Nb1 Rh8 46.Nc3 Rh4 47.Na4 Qb7 48.Nd2 Bf8 49.Qe1 Be7 50.Qe2 Bd8 51.Rg1 Qh7 52.Qf1 Rh2 53.Rh1 Bg4 54.Rh2 Qh2 55.Qg1 Qg3 56.Kf1 Nh5 57.Bc3 (57.Bc3 Bh3 58.Bh3 Qh3 59.Ke2 Ng3 60.Ke1+–) 1–0. linakip – wkazdymrazie, kurnik, 2011.

5.g3 c6

6.Nbd2 a5 7.ba5 Qa5 8.Bg2 Qb6 (8...d5 9.0-0+=) 9.Nc4= Qc7 (9...Qb4 10.c3 Qc5 11.Ne3=) 10.0-0 d5 11.Ncd2 Nbd7 12.c4 e6 (12...Re8 13.Qc2=) 13.Qc2 Re8 (13...Rd8 14.Rfb1=) 14.Rfc1 (14.d4 b6=) 14...Qd8 (14...Rd8 15.cd5 ed5 16.e4=) 15.a4 (15.Ne5 Qe7=) 15...Nh5 (15...e5!?=) 16.Bg7+= Ng7 17.Nb3 (17.d4 Nf5+=) 17...dc4 (17...e5 18.cd5 cd5 19.e3+=) 18.Qc4 Nb6 (18...e5 19.a5+=) 19.Qb4 Nd5 20.Qd2 (20.Qd4 Qd6+=) 20...e5 21.Qb2 f6 (21...Qc7 22.a5+=) 22.Nfd2 Ne6 23.Ne4 Qe7 24.a5 Ndc7 25.Nec5 Na6 26.Na4 Rb8 27.e3 Rd8 28.Rd1 Nec7 29.Rac1 Qb4+= 30.Nbc5 Qb2 31.Nb2= Nc5 32.Rc5 Be6 33.Ra1 Ra8 34.Kf1 Bd5 35.Bd5 Rd5 36.Rd5 cd5 37.e4 de4 (37...Ra6 38.f4=) ½–½. Davies,Nigel R – Fishbein,Alexander, Tel Aviv (Israel), 1992.

6.Nbd2 b5 7.Bg2 a5 8.ba5 Ra5 9.a3 Bb7 10.Nb3 Ra8 11.Nc5 Qb6 12.Bd4 Qc7 13.Nb3 Re8 14.0-0 d6 15.Qc1 c5 16.Bb2 e5 17.e4 Nfd7 18.Nbd2 Ra7 19.c4 bc4 20.Nc4 Nc6 21.Qc2 Na5 22.Bc1 Nc4 23.Qc4 Nb6 24.Qc2 Ba6 25.Be3 Re7 26.Rfd1 Bf6 27.Qc1 Kg7 28.Bg5 Bg5 29.Qg5 h6 30.Qe3 Nd7 31.Nh4 Nf6 32.Bf1 Ng4 33.Qf3 Re6 34.Qg4 Rf6 35.Nf5 Kh7 36.Nh4 Rb7 37.Qe2 Rb3 38.Qc2 Rb7 39.Be2 Qd7 40.Qd2 Qh3 41.Bf1 Qe6 42.Qe3 Rb3 43.Rd2 c4 44.a4 cd3 45.Bd3 Bd3 46.Rd3 Rd3 47.Qd3 Qg4 48.Rf1 Rf3 49.Qc2 Ra3 50.Qc6 Rd3 51.a5 Rd4 52.a6 Re4 53.a7 Qg5 54.a8Q Rh4 55.Qce8 Qf6 56.Qg8# 1–0. linakip – alankodzas, kurnik, 2012.

6.Nbd2 d6 7.Bg2 Qb6 8.a3 Nbd7 9.0-0 e5 10.e4 Qc7 11.Bc1 Nb6 12.c4 a5 13.ba5 Ra5 14.Nb3 Ra8 15.Bd2 Nfd7 16.Qc1 Na4 17.Bh6 Nac5 18.Nc5 Nc5 19.Rd1 Nb3 20.Qb1 Na1 21.Bg7 Kg7 22.Qa1 Qa5 23.Qc1 Qc5 24.Qg5 Ra3 25.Nh4 Qd4 26.Bf3 Rd3 27.Rd3 Qd3 28.Kg2 f6 29.Qe3 Qe3 30.fe3 Be6 31.Be2 Ra8 32.Kf3 Ra2 33.h3 b5 34.cb5 cb5 35.Bb5 Bh3 36.Be2 h5 37.Bd3 Bg4# 0–1. linakip – goniec80, kurnik, 2011.

6.Bg2 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 Na6+=.

5.g3 d5

6.Nbd2 a5 7.a3 (7.ba5 c5+=) 7...ab4 8.ab4 Ra1 9.Qa1 c6 (9...Qd6 10.b5+=) 10.Bg2 Na6 11.Qa3 (11.c3 Qd6=) 11...Qd6 (11...Qb6 12.c3=) 12.Bc3 (12.b5 Nb4 13.Qb3 cb5=) 12...Nc7 (12...Bg4 13.Qb2+=) 13.Be5= Qd7 14.0-0 Nb5 (14...Rd8 15.Ra1+=) 15.Qb2 Ne8 (15...Qe6!?=) 16.Bg7+/- Ng7 17.Ne5 (17.c4 Nc7+/-) 17...Qd6 (better is 17...Qe6+=) 18.Ndf3?? (better is 18.c4 dc4 19.dc4+=) 18...f6-/+ 19.c4 Nc7 20.c5 Qd8 21.Ng6 hg6–+ 22.Nh4 Kf7 23.e4 e5 24.f4 ef4 25.gf4 Rh8 26.Nf3 de4 27.de4 Qd3 28.e5 Qe3 29.Kh1? Nf5 30.ef6 Ng3# 0–1. gbsrao (2105) – vanadis (2240), net–chess.com, 2008.

6.Nbd2 Na6 7.b5 Nc5 8.c4 Bg4 9.Bg2 Re8 10.0-0 dc4 11.Nc4 Qc8 (11...a6 12.ba6 Ra6 13.Qc2=) 12.Rc1 Bh6 13.e3 Qd7 (13...Bh3 14.Bh3 Qh3 15.Na5+=) 14.Bf6 (better is 14.Nfe5!? Bd1 15.Nd7 Nfd7 16.Rfd1+– (worse is 16.Rcd1 f5+/-)) 14...ef6+= 15.d4 Ne4 16.Qb3 Be6 17.Qb2 Bd5 18.Nfd2 Nd2 19.Nd2 (worse is 19.Qd2 Bg2 20.Kg2 Qb5+=) 19...Bg2 20.Kg2 Qd5 21.Kg1 Re7 22.Rc5 Qd8 23.Rfc1 a6 24.ba6 b6 25.Rc6 Ra6 26.a3 Bf8 27.Nb1 Rd7 28.h4 Ra5 29.R1c4 Bd6 30.a4 Qe7 31.Nc3+/- g5 32.h5 Rf5 33.g4 Ra5+= 34.Nb5 Rb5?? 35.Qb5+– Kg7 36.Qf5 Rd8 37.e4 Bf4? 38.h6! Kg8 39.Rf6 Re8 40.e5 Qf8 41.Rc7 (41.Rc7 Bh2 42.Kh2 Qh6 43.Rh6 Re7 44.Qh7 Kf8 45.Qh8#) 1–0. Ramirez – Ezequiel, Spain, 1990.

6.Nbd2 c6 7.Bg2 Nbd7 8.0-0 Re8 9.a3 e5 10.c4 e4 11.de4 de4 12.Nd4 (12.Ng5 h6 13.Nh3 e3=+) 12...Nb6 (12...e3 13.N2b3=+) 13.Qb3 (13.c5 e3 14.fe3 Nbd5+=) 13...Bg4 (13...e3 14.fe3 Bh6 15.Rad1 Be3 16.Kh1+=) 14.c5+= Nbd5 15.Nc4 Qd7 16.Nd6 Re7 17.Rfd1 Ne8 (better 17...e3!?=) 18.Ne4+– Re4? (better 18...Rd8+–) 19.Be4+– (19.Be4 Rd8 20.Bf3 Bf3 21.Qf3+–) 1–0. Maestro – Chabryl, internet, 2020.

6.Nbd2 Nc6 7.a3 Qd6 8.Bg2 d4 (better 8...Ng4!? 9.Bg7 Kg7=) 9.b5+= Ne5 10.Nd4 Nd5 (10...c5!? 11.bc6 bc6+–) 11.c4 Nf6 12.0-0 c5 13.bc6! bc6 (13...bc6 14.Nb5 Combination; 13...Nc6 14.Nc6 Decoy) 14.Qc2+– Bb7 15.Bc3 Rab8 16.Rab1 Rfd8 (16...Ned7+–) 17.Qa4 Rd7 (17...a6 18.Qa5 c5 19.Rb7 (worse 19.Bb7 cd4 20.Bb4 Qd7+–) 19...Rb7 20.Bb7 cd4 21.Bb4+–) 18.N2b3 c5 (18...Rc7 19.Qa5 Ne8+–) 19.Nb5 Qe6 (19...Qb6 20.Bb7 Rdb7 21.Be5 Rc8+–) 20.Nc5 Qf5 (20...Qg4 21.Be5 Bg2 22.Kg2+–) 21.Nd7 Nfg4 (21...Bg2 22.Nf6 Qf6 23.Be5 Qe5 24.Kg2 Ra8+–) 22.Nb8 Bg2 23.Kg2 1–0. Pierre – GuestQvocw, internet, 2020.

6.Bg2 c6 7.Nbd2 Bf5 8.0-0 Re8 9.Re1 Nbd7 10.e4 de4 11.de4 Be6 12.c4 Nb6 13.Qc2 Bg4 14.c5 Nbd7 15.Nc4 Bf3 16.Bf3 Qc7 17.Rad1 Rad8 18.e5 Nd5 19.Bd5 cd5 20.Rd5 e6 21.Rd6 Bf8 22.Rd2 Nb8 23.Nd6 Re7 24.Qe4 Red7 25.Red1 Nc6 26.a3 Bh6 27.f4 Ne7 28.a4 Nd5 29.Kg2 Qc6 30.a5 Ne3+= 31.Kf3 Nd1 32.Rd1 Qe4 33.Ke4+/- Bf8 34.g4 Bd6 35.ed6 a6 36.Bf6 Rc8 37.g5 Re8 38.Ke5 Rc8 39.Rh1 h5 40.gh6 Kh7 41.h4 Kh6+/- 42.Bg5 Kh5 43.Bf6 Rf8?? 44.Be7+– Rg8 45.Kf6 Kg4 46.Kf7 Rh8 47.Ke6 Re7 48.de7 Kf4 49.Kf7 Rh7 50.Kf8 Rh8 51.Kg7 Re8 52.Kf7 Rc8 53.e8Q Re8 54.Ke8 (54.Ke8 Kf5 55.b5 ab5 56.a6 ba6 57.c6+–) 1–0. cibis – fuszerdopotegi (1690), kurnik, 2011.

4.d3 a5

5.ba5 Nc6 6.Nbd2 Na5 7.g3 0-0 8.Bg2 c6 9.0-0 d5 10.Qc1 b5 11.c4 bc4 12.dc4 e6 13.cd5 cd5 14.Nb3 Nc4 15.Bd4 Ba6 16.Re1 Ne4 17.Bg7 Kg7 18.Nfd2 Ned2 19.Nd2 Qf6 20.Nc4 Bc4 21.e3 Ra2 22.f4 Rfa8 23.Bf1?? Ra1 24.Qa1 Ra1 25.Kf2 Re1 26.Ke1 Qa1 27.Kf2 Qf1# 0–1. linakip – fernendo, kurnik, 2011.

5.b5 0-0 6.e4 d6 7.Be2 (--> 4.d3 0-0 5.e4 d6 6.Be2 a5 7.b5).

5.b5 a4 6.a3 0-0 7.e4 d6 8.Be2 c5 9.c4 Nbd7 10.0-0 h5 11.Nc3 Bh6 12.Nd5 Nd5 13.cd5 Kh7 14.Qc2 Nf6 15.Bc1 Bg7 16.Ng5 Kh8 17.f4 (17.Bb2 Qb6+=) 17...Ng4 (17...Ne4 18.Bb2 Nf6 19.Qc4-/+) 18.Rb1 (better is 18.Bb2+=) 18...e5?? (18...Bd4 19.Kh1 Nf2 20.Rf2 Bf2 21.Bh5 Bd4+= (worse is 21...gh5 22.Qf2 f6 23.Ne6 Be6 24.de6+=)) 19.h3 (better is 19.Bg4 Bg4 20.fe5+–) 19...ef4+= 20.Bf4 (worse is 20.hg4 Bd4 21.Rf2 Bf2 22.Kf2 Qg5 23.Bb2 Kg8 24.gh5 gh5-/+; 20.Rf4 Bd4 21.Kh1 Nf2 22.Kh2 Qg5 23.Rf2 Qh4+=) 20...Ne5 21.Nf3 f6 22.Be5 fe5 23.Qd2 Bf6?? 24.g3?? Kg7= 25.h4 Bg4 26.Rf2 Qd7 27.Ng5 Bg5 28.Qg5 Rf2 29.Kf2 Rf8 30.Ke3 Be2 31.Ke2 Qf7 32.Qe3 b6 33.Rg1 Qd7 34.Rf1? Qg4?? 35.Ke1 Rf1 36.Kf1 Qd1 37.Kf2 Qc2 38.Kg1? Qd1?? 39.Kg2 Qc2 40.Kh3 Qd1 41.Kg2+= Qc2 42.Qf2 (42.Qf2 Qd3 43.Qf3 Qb5 44.Qe3–+). bratek55 (1605) – koziolekmat (1810), kurnik, 2011.

5.b5 b6 6.e4 Bb7 7.Be2 d6 8.0-0 e5 9.c4 0-0 10.Nc3 Nbd7 11.Nd5 Nd5 12.cd5 Nc5 13.d4 ed4 14.Bd4 Ne4 15.Bg7 Kg7 16.Qd4 Nf6 17.Rac1 (17.Bc4 Qd7+=) 17...Kg8 (17...Bd5 18.Rc2-/+) 18.Rc2 (better is 18.Bc4!?=) 18...Nd5 19.Bc4 Ne7 20.Rfc1 Bf3 21.gf3 Rc8 22.a4 Nf5 23.Qg4 h5?? 24.Qf4?? Qf6–+ 25.Bd3 Kg7 26.Bf5 Qf5 27.Qf5+= gf5 28.Rc7 Rc7 29.Rc7 Rb8 30.Rc6 f6 31.Rd6 Kg6 32.f4 h4 33.h3 Rb7 34.Kg2 Kf7 35.Kf3 Ke7 36.Rc6 Rb8 37.Ke3 Rb7 38.Kd4 Rd7 39.Kc4 Rd2 40.Rb6 Rf2 41.Rb7 Kd6 42.Rb6 Kc7 43.Rf6 Rf4 44.Kc5 Ra4 45.Rf5 Rb4? 46.Rf7 Kc8 47.Kc6 Rc4+= 48.Kb6 a4 49.Ra7 Kb8 50.Rf7 Kc8 51.Ka7 a3+= 52.b6?? Rb4 53.Rf8 Kd7 54.Kb7 a2 55.Rf1?? Rb1–+ 56.Rf7 Ke6 57.Rh7 Rb6!! 58.Kb6 a1Q 59.Rh4 Qg1 60.Kb5 Qg5 (60...Qg5 61.Ka6 Qh4 62.Ka5 Kd5 63.Kb6 Qa4 64.Kb7 Qc6 65.Ka7 Qc7 66.Ka6 Kc5 67.h4 Qb6) 0–1. bratek55 – strongii (1725), kurnik, 2011.

5.b5 c6

6.a4 cb5 7.ab5 0-0 8.e4 d6 9.Be2 Nbd7 10.0-0 Nc5 11.c4 a4 12.Qc2 Nb3 13.Ra2 Bd7 14.Nc3 Bg4 15.Nd5?? (better is 15.Na4!? Nc5 16.Rfa1+–) 15...Bf3 16.Bf3 Nd5 17.ed5 (worse is 17.cd5 Qa5+=) 17...Bb2 18.Qb2 Nc5 19.Qd4 Nb3 20.Qe3 Qa5 21.Qe7 Nd2 22.Rfa1 Nf3? (22...Rfe8 23.Qf6 Nc4+=) 23.gf3+– Qc3 24.Ra3 Qd4 25.Qd6 Rae8 26.Qg3 Re2 27.R1a2?? Re1?? 28.Kg2+– h5 29.h4 Kh7 30.Ra4 Qd3+/- 31.R2a3?? Qf1 32.Kh2 Qh1 0–1. bratek55 – nebihu, kurnik, 2011.

6.a4 d5 7.e3 0-0 8.Be2 Re8 9.0-0 Nbd7 10.c4 e5 11.Qc2 e4 12.de4 de4 (worse is 12...Re4 13.cd5 cd5 14.Nc3+=) 13.Nd4 c5 14.Nb3 b6 15.Rd1 Bb7 16.Nc3 Qe7 17.Rd2 Ne5 18.Rad1 Nd3 (better is 18...Rad8!?=) 19.Bd3+/- ed3 20.Qd3 Ng4 21.Qe2 Qh4 22.h3+– Ne5 23.Nd5 Qg5?? 24.Be5 Be5 25.Qg4 Qg4+/- 26.hg4 Re6 27.f4 Bg7? 28.Kf2 Bd5+/- 29.Rd5 Rae8 30.R1d3 Re4 31.Nd2 R4e6 32.f5 Re5 33.Re5 Be5 34.Kf3 Kf8 35.Ne4 f6 36.Nd6?? Rb8?? 37.g3?? Ke7?? 38.Ne4+/- Rd8 39.Rd8 Kd8 40.fg6 hg6 41.g5 f5 42.Nd2?? Ke7 43.g4 Ke6 44.e4 Bc3? 45.Nf1 Ke5?? 46.gf5 gf5 47.Ng3 f4? 48.Nf5 Bd2 49.Ne7 Ke6 50.Nc6 1–0. bratek55 – alexthegreat1 (1665), kurnik, 2011.

4.d3 b6

5.Nbd2 Nh5 6.Qc1 Bb2 7.Qb2 f6 8.g3 Bb7 9.Bg2 e5 10.0-0 d6 11.a3 Nc6 12.Qb3 Qe7 13.c4 0-0-0 14.Qb2 a5 15.b5 Na7 16.a4 Kb8 17.Rfe1 Ng7 18.Nb3 Ne6 19.Nfd2 Bg2 20.Kg2 Nc5 21.Nc5 dc5 22.Ne4 Nc8 23.Nc3 Nd6 24.Nd5 Qf7 25.Qd2 Nf5 26.e3 Rhe8 27.Qc2 h6 28.Rf1 Nd6 29.f4 f5 30.fe5 Re5 31.e4 Qe6 32.ef5 Nf5 33.Qd2?? Re2–+ 34.Rf2 Rd2 35.Rd2 Rd5 36.cd5 Qd5 37.Kg1 c4 38.Rad1 c3 39.Rc2 Ne3 40.Rdc1 Nc2 41.Rc2 Qd3 (41...Qd3 42.Rf2 c2 43.Rf8 Kb7–+) 0–1. giorgo – ira102, kurnik, 2012.

5.Nbd2 Bb7

6.g3 a6 7.Bg2 Nc6 8.Kf1 Nb4 9.a3 Nc6 10.Bh3 e6 11.Kg2 0-0 12.Re1 Nd4 13.c3 Nf3 14.Nf3 Bf3 15.ef3 d5 16.Kg1 c6 17.Bg2 a5 18.c4 Qd6 19.Qb3 Nd7 20.cd5 Bb2 (20...ed5?! 21.Bg7 Kg7 22.Qb2 Qf6 23.d4-/+; 20...cd5?! 21.Bg7 Kg7 22.Rac1-/+; 20...Qd5?! 21.Qc2 Qc5 22.Qe2-/+) 21.Qb2 cd5 22.Rac1 Nc5 23.Red1 Rac8 24.Qb5 h6 25.d4 Nb7 26.Qa6 Rc1 27.Rc1 Nd8 28.Qb5 Nb7 29.Rc6 Qa3 30.Rb6 Nd6 31.Qc6 Qa1 32.Bf1 Nc4 33.Ra6 Nd2 34.Kg2 Qf1# 0–1. linakip – sorina14, kurnik, 2012.

6.g3 a6 7.Bg2 d6 8.0-0 Nbd7 9.Qc1 h6 10.c4 0-0 11.e4 e5 12.Nb3 a5 13.a3 ab4 14.ab4 Ra1 15.Ba1 Qa8 16.Bb2 c5 17.Qd2 Qb8 18.Ra1 Qc7 19.b5 Ra8 20.Qc1 Ng4 21.Nbd2 g5 22.Nf1 Ngf6 23.Ne3 Qb8 24.Nf5 Nf8 25.Qb1 Ra1 26.Qa1 Bc8? 27.Ne7+– Kh8 28.Nc6?? Qb7+= 29.Qa7 Qa7 30.Na7 Bb7 31.Nd2 Ne6 32.Nb3 Nd4 33.Nd4 ed4 34.Bc1 Nd7 35.Bh3 Ne5= 36.Bf1 h5 37.f4 gf4 38.Bf4 Bf6 39.Be5 Be5 40.Bh3+– Kg7 41.Nc8 Bc8+= 42.Bc8 Kg6 43.Kg2 Kg5 44.h3 f6 45.Bf5 h4 46.g4 Kf4 47.Bc8?? Ke3–+ 48.Be6 Kd3 49.Bd5 Ke3 50.Kf1 Kf3 51.Kg1?? Kg3 52.Be6–+ Kf3 53.Bd5 Ke2 54.Kg2 d3 55.Be6 d2 (55...d2 56.g5 Ke1–+) 0–1. giorgo – lalaang (1665), kurnik, 2012.

6.g3 Nc6 7.a3 e6 8.Bg2 Qe7 9.0-0 0-0-0 10.c4 h5 11.h4 Nh7?? (better is 11...Rde8+=) 12.Bg7+– Rhg8 13.Bc3 g5 14.hg5 Ng5 15.Ng5 Qg5 16.Nf3 Qg4 17.Nh2 Qg7 (17...Qg6 18.e4+–) 18.b5 (better is 18.Bg7 Rg7 19.Nf3+–) 18...Qc3 19.bc6 dc6 20.Nf3 e5? (20...c5 21.Qc1 Qf6 22.Qe3+–) 21.Qc1 Qa5 22.Ne5?? Qe5-/+ 23.Qd2 h4! 24.Bh3 Kb8 25.g4 f5 26.f3? fg4 27.fg4 Qg3 28.Bg2 c5 29.Qf4 Qg2# (29...Bg2 30.Qg3 hg3 31.Kg2 Rg4 32.Rf3=) 0–1. giorgo – apollo6, kurnik, 2012.

6.g3 d6 7.Bg2 Qd7 8.0-0 a6 9.a3 h6 10.Qc1 Nc6 11.Nb3 Na7 12.c4 c6 13.Re1 b5 14.c5 d5 15.Na5 0-0-0 16.Nb7 Qb7 17.Qc2 Kb8 18.a4 Nc8 19.ab5 cb5 20.Be5 Ka8 21.Qa2 Ka7 22.Qa5 e6 23.Ra2 Ne7 24.Rea1 Nc6 25.Qa6 Qa6 26.Ra6 Kb7 27.Rb6 Kc8 28.Rc6 Kd7 29.Rb6 Ne8 30.Bg7 Ng7 31.Ra7 Ke8 32.g4 h5 33.gh5 Nh5 34.Ne5 Rh7 35.Ng6! Rg7 36.Ne5 Nf4+– 37.Nc6 Rg2 38.Kf1 Rd7 39.Rb8 Rd8 40.Rd8# 1–0. linakip – neron35, kurnik, 2012.

6.g3 d6 7.Bg2 Nbd7 8.0-0 Rb8 9.a3 0-0 10.c4 Nh5 11.Qb3 a5 12.Bc3 ab4 13.ab4 Nhf6 14.Qb2 Ra8 15.e4 c5 16.b5 Nh5 17.Ra8 Qa8 18.Ra1 Qb8 19.Bg7 Ng7 20.Ra3 Nf6 21.Qa1 Qc8 22.Ra7 Qc7 23.Ng5 e5 24.h4 Qb8 25.Bh3 Bc8? 26.Bg2?? h6 27.Ngf3 Be6 28.Qa6 Nge8? 29.Rb7+– Qa8?? 30.Qa8 Ng7 31.Qa7 Ngh5 32.Qb6 Ne8 33.Qd8 Nef6 34.Qd6 Kg7 35.Qe5 Kg8 36.Qc5 Nd7 37.Qc7 Ndf6 38.d4 Ng4 39.d5 Bc8 40.Rb8 Ne5 41.Ne5 Nf6 42.Rc8 Rc8 43.Qc8 Kg7 44.Qc7 Ne4 45.Ne4 (45.Ne4 h5 46.Qf7 Kh6 47.Qg6#; 45.Qf7 Kh8 46.Ng6#) 1–0. giorgo – dardani, kurnik, 2012.

6.g3 d6 7.Bg2 e6 8.0-0 Nc6 9.a3 Rb8 10.Re1 0-0 11.c4 Ne7 12.Nb3 Ng4 13.c5?? (13.Bg7!? Kg7 14.d4+=) 13...dc5 (better is 13...Bb2 14.cd6 cd6–+ (14...Ba1?! 15.de7 Qe7 16.Qa1-/+)) 14.Bg7= Kg7 15.bc5 b5 16.Qc2 c6 17.Qc3 Kg8 18.Nbd4 Nd5 19.Qb3 a5 20.a4 b4 21.e4 Nc7 22.Red1 Qe7 23.Rac1 Na6 24.Qc4 Rfd8 25.h3 Nf6 26.Ne5 Nd7 27.Nec6 Bc6 28.Nc6 Qc5 29.Qc5 Nac5+= 30.Nd8 Rd8 31.d4 Na6 32.Rc6 Nab8 33.Rc7 Nb6 34.d5 Na4 35.de6?? fe6?? 36.e5 Nc3 37.Rd8# 1–0. linakip – tero41, kurnik, 2011.

6.g3 e6 7.Bg2 Qe7 8.a3 Nc6 9.0-0 0-0-0 10.Re1 h5 11.h4 Nh7 12.Ne4 (better is 12.Bg7 Rhg8 13.Bh6+–) 12...Bb2–+ 13.Ra2 Bg7 14.Neg5 Ng5 15.Ng5 f6 16.Nf3 g5 17.hg5 fg5 18.Qd2 g4 19.Nh2 Bh6 20.e3 Bg5 21.Qe2 h4 22.Qg4 hg3 23.fg3 Bf6 24.Nf3 Qh7 25.Kf2 Bc3 26.Rh1 Qg8 27.Qg8 Rdg8 28.Rh3 Rh3 29.Bh3 Ne5 30.Ne5 Be5 31.d4 Bg3 32.Ke2 Bd5 33.Rb2 Bc4 34.Kd2 b5 35.Kc3 Bd6 36.a4 a6 37.a5 e5 38.Bg2 ed4 39.ed4 Rg2 40.Rb1 Rg3 41.Kd2 Rg4 (41...Bf4 42.Ke1 Be3 43.Rd1 Rg1#) 0–1. linakip – ireckiw, kurnik, 2012.

5.e4 Bb7

6.Be2 0-0 7.0-0 d6 (--> 4.d3 0-0 5.e4 d6 6.Be2 b6 7.0-0 Bb7).

6.Be2 e5 7.Ne5 d6 8.Nf3 0-0 9.0-0 c5 10.bc5 dc5 11.c4 Qe7 12.Nc3 Rd8 13.Qc2 Nc6 14.Nd5 Nd5 15.cd5 Nb4 16.Qb3?? (better is 16.Qd2!?+/-) 16...Nd5 17.Bg7 Kg7? (17...Nf4 18.Be5 Ne2 19.Kh1=) 18.Rfe1?? (better is 18.ed5 Bd5 19.Qb2 Qf6 20.Ne5+–) 18...Nf6 19.Qc3 Kg8 20.Nd2 Rd6?? (20...Qe6 21.a4=) 21.f4?? (better is 21.e5 Re6 22.ef6 Qf6 23.Qf6 Rf6 24.Bf3 Bf3 25.Nf3+– (25.gf3?! Rd6+=)) 21...Rad8 22.e5 Nd5 23.ed6?? Nc3 24.de7+– Re8 25.Bf3 Bf3 26.Nf3 Nd5 27.g3 Ne7 28.d4 Kf8 29.dc5 bc5 30.Ne5 Rc8 31.Rac1 Nf5 32.Nd7 Kg7 33.Rc5 Rb8 34.Ne5 f6 35.Rc7 Kh6 36.Nf7 Kg7 37.Nd6 Kh6 38.Nf5 gf5 39.Ra7 (39.Ra7 Kh5 40.Rh7 Kg4 41.a4+–) 1–0. bratek55 (1735) – luani, kurnik, 2011.

6.Be2 e6 7.0-0 Qe7 8.a3 Nc6 9.Nbd2 h5 10.c4 h4 11.h3 0-0-0 12.Qb3 Qf8 13.a4 (13.c5 bc5 14.Rfb1 c4 15.Qc4 d5+–) 13...Nh5 14.Rfe1 (better is 14.Rfb1!?+/-) 14...Bb2= (worse is 14...Nb4 15.Bg7 Ng7 16.a5+/-) 15.Qb2 f6 (15...Qb4 16.Qc2=) 16.a5 (better is 16.c5+/-) 16...g5? (better is 16...Qb4 17.Qc2 Na5=) 17.ab6+– ab6 18.Nd4 (18.c5 g4 19.hg4 Nf4+–) 18...g4? (18...Qb4 19.N4b3+=) 19.Bg4?? (19.Nc6 dc6 20.Bg4 Nf4+/-) 19...Ne5? (19...Qb4 20.N4b3 Ne5 21.Ra7=) 20.Be2 (better is 20.Ra7 Ng4 21.Qa3+– (worse is 21.hg4 Nf4+–)) 20...Nf4= 21.Qb3?? Qg8 22.Bf1? Nh3 23.Kh2 Nf2 24.N2f3 Qg3 25.Kg1 h3 26.Ne5 h2# 0–1. bratek55 (1655) – picus52, kurnik, 2012.

6.Be2 e6 7.0-0 Qe7 8.c4 Nc6 (8...Qb4 9.Qc2=) 9.Qb3 (9.b5 Na5+/-) 9...a5 (better is 9...Nb4!? 10.Nbd2 0-0+=) 10.b5+/- Nb8 11.a4 d6 12.Nbd2 Nbd7 13.Nd4 Nc5 14.Qc2 e5 15.Nc6 Bc6 16.bc6 0-0 17.d4 (17.f4 ef4 18.Rf4 Ne8=) 17...Na6?? (better is 17...ed4 18.Rae1 Rfe8-/+ (18...Nce4? 19.Bd3+–)) 18.d5+= Nc5 19.Ba3 Na6 20.f3 Rfb8 21.Rab1 Nh5 22.g3 Bh6 23.Qd3 Qf6?? 24.Nb3 Ng7 25.Bc1 Bc1 26.Rbc1 Nb4 27.Qe3 Nh5 28.f4 Qe7? 29.Bh5+– gh5 30.f5 Qf6+= 31.Nd2 Kf8 32.Nf3 Ke7 33.Qg5 Rg8 34.Qf6 Kf6 35.Nh4 Rg4 36.Rce1 Rag8 37.Kh1 Nd3 38.Re3 Nc5 39.Rfe1 Na4 40.Nf3 Nc5 41.Nd2 h6 42.Nb3 Nb3 43.Rb3 h4 44.Rg1?? hg3 45.Rgg3 Rg3 46.hg3 Rg4 47.Re3 Kg5 48.Kg2 f6 49.Kf3-/+ h5 50.Re1 h4 51.gh4 Rh4 52.Rg1 Kh5 53.Rg6 Rh3 54.Ke2 Rc3 55.Rf6 Rc4 56.Rf7 Re4 (56...Re4 57.Kf3 Rc4 58.Rc7 Kg5-/+) 0–1. bratek55 – neron35, kurnik, 2011.

6.Be2 Nh5 7.Bg7 Ng7 8.0-0 d6 9.c4 Nc6 10.b5 Nb8 11.Nc3 Nd7 12.Nd5 0-0 13.a4 e6 14.Ne3 Nc5 15.Nd4 d5 16.cd5 ed5 17.ed5 Bd5 18.Nd5 Qd5 19.Nc6 Qd6 20.Qc2 a6 21.Bf3 Kh8 22.d4 Nce6 23.Rfd1 ab5 24.ab5 Ra1 25.Ra1 Rc8 26.d5 Nc5 27.Re1 Nf5 28.Qc3 Kg8?? 29.g3 h5? 30.h4 Kh7 31.Kg2 Qd7 32.Ne5 Qd6? 33.Nf7+– Qd7 34.Ng5 Kh6 35.Qd2 Kg7 36.Ne6 Ne6 37.Re6 Re8? 38.Qc3 Kh7 39.Qe5 Re6 40.de6 Qe7 41.Be4 Nd6?? 42.Bd3 Kg8 43.f4 Kh7 44.f5 gf5 45.Bf5 Nf5 46.Qf5 Kg7 47.Kf3?? Qa3+/- 48.Kf4 Qb4?? 49.Qe4 Qd6?? 50.Kf3 Qf8? 51.Qf4 (51.Qf4 Qa8 52.Ke3 Qa3 53.Ke2 Qa2 54.Kf1 Qa1 55.Kg2 Qa2 56.Kh3 Qe6 57.g4 Qb3 58.Qg3 Qb5 59.Qc7 Kg8 60.gh5 Qh5 61.Qd8 Kh7 62.Qd7 Kh6 63.Qe6 Qg6 64.Qe3 Kg7 65.Qe5 Qf6 66.Qg3 Kf7 67.Qd3=) 1–0. bratek55 – ochrona, kurnik, 2011.

6.e5 Nd5 7.a3 e6 8.Be2 h6 9.0-0 Nf4 10.Nbd2 Ne2 11.Qe2 Qe7 12.d4 c6 (better is 12...0-0!?=) 13.c4 Na6 14.Ne4 0-0 15.Nd6 Bc8 16.b5 c5? (better is 16...Nc7 17.a4 Ne8+–) 17.ba6 cd4 18.Nd4 Ba6 19.N4b5 Rac8 (19...Bb5 20.cb5 f6 21.f4+–) 20.a4 Rc5 21.Bd4 Rc6 22.f4 Qd8 23.Na7 Rc8?? 24.Nac8 (24.Nac8 Bc8 25.Qd3+–) 1–0. bratek55 – neron35, kurnik, 2011.

6.Be2 d6

7.0-0 Qd7 8.c4 Nc6 9.b5 Na5 10.Nc3 0-0-0 11.Qc2 h5 12.Nd5 Nd5 13.cd5 (13.ed5?! Bb2 14.Qb2 e6+=) 13...Bb2 14.Qb2 g5 15.Nd4 (better is 15.Ng5!? e6 16.de6 fe6 17.Rac1+–) 15...g4 16.g3 h4 17.Nf5 (17.Nc6 Rde8+/-) 17...hg3? (better is 17...Bd5!? 18.Bg4 Be6=) 18.fg3+/- e6 19.de6 fe6 20.Ne3 Qh7 21.Rf2 Qh5 22.Bg4 Qh6 23.Qe2 Kb8 24.Raf1 Qg5 25.Rf6 Qb5 26.Be6 Nc6 27.Bd5 Nd4 28.Bb7?? Kb7 29.Qd2+/- Qh5 30.Nf5 Ne2 31.Kf2 Qh2 32.Ke3?? Ng3-/+ 33.Qh2?? Nf1–+ 34.Kf2 Nh2 35.Rf7 Ng4 36.Ke2 Ne5 37.Re7 Rh2 38.Ke3 Rh3 39.Kf4 Nd3 40.Kg4 Rh2 41.a4 Rg8 42.Kf3 Ne5 43.Ke3 Rh3 44.Kf2 Nd3 45.Ke2 Rg2 46.Kf1–+ Ra2 47.Nd6 Kc6 48.Nc4 Rh1 0–1. bratek55 – bredh, kurnik, 2011.

7.0-0 Nbd7 8.c4 h5 9.Nc3 h4 10.h3 Nh5 11.Qb3 Nf4 12.Bd1?? (12.Rfe1 f5+=) 12...f6?? (better is 12...Nd3 13.Bc2 Nb2 14.Qb2 e6-/+) 13.Nd5+/- Bd5 14.ed5 e5 15.Bc1 Nh5 16.a4 Qe7 17.a5 0-0 (17...f5 18.d4+/-) 18.Be3 (better is 18.Nh4 Qf7 19.Bh5 gh5 20.Nf5+–) 18...f5+/- 19.Bg5 Nhf6 20.Bh4 Qf7 21.Ng5 Qe8 22.Ne6 Rf7 23.ab6 ab6? 24.Bf3 Ra1 25.Ra1 e4 26.Bd1 ed3 27.Ra7 Qb8? 28.Qa4 b5+/- 29.Qa6 Nb6? 30.c5 dc5 31.bc5 Nbd5 32.Ra8 Qa8 33.Qa8 Kh7 34.Ng5 Kh6 35.Nf7 Kh7 36.Qc6 Nc3 37.Bb3 Ne2 38.Kf1 Nd4 39.Qc7 Nb3 40.Qb6 Ne4 41.Qb7 d2-/+ 42.Qd7 Nc3?? 43.Ng5 Kh6 44.Nf7 Kh7 45.Ng5 Kh6 46.Nf7 Kh7= ½–½. bratek55 (1625) – amator17, kurnik, 2011.

4.d3 c6

5.Nbd2 b5 6.g3 a5 7.c3 a4 8.a3 Bb7 9.c4 0-0 10.Bg2 Qc7 11.0-0 d5 12.cb5 cb5 13.Rc1 e6?? (better is 13...Qb6+=) 14.Rc7+– Nc6 (14...Ne8 15.Rb7 Bb2 16.Qc2+–) 15.Rb7 Rab8 16.Rb8 (16.Rb8 Rb8 17.Qa1+–) 1–0. giorgo – lavdim2011, kurnik, 2012.

5.Nbd2 d5 6.a3 a6 7.Qc1 b5 8.g3 e6 9.Bg2 0-0 10.0-0 Nbd7 11.c4 dc4 12.dc4 Nb6 13.cb5 cb5 14.Be5 Nbd5 15.Qb2 Bb7 16.e4 Nb6 17.Rfd1 Na4 18.Qc2 Rc8 19.Qc1?? (better is 19.Qb3=) 19...Rc1–+ 20.Rdc1 Qa8 21.Ne1 Nd7 22.Bg7 Kg7 23.f3 Ne5 24.Nb3 Rd8 25.Nc5 Nc5 26.Rc5 Nc4 27.a4 Nd2 28.ab5 Nb3 29.ba6 Nc5 30.b5 Bc8 31.Nc2 Rd2 32.Nb4 Bd7 33.b6 Rb2 34.b7 Qb8 35.Nd3 Nd3 36.Bf1 Nb4 37.a7 Qb7 38.a8Q Qb6 39.Kh1 Qf2 40.Qa7 Qh2# 0–1. linakip – incognitojp, kurnik, 2012.

5.Nbd2 d6 6.g3 Qb6 7.a3 Bg4 8.Bg2 Nbd7 9.0-0 Qc7 10.c4 Nb6 11.a4 d5 12.a5 Nbd7 13.Qc2 0-0 14.cd5 Nd5 15.Bg7 Kg7 16.Qb2 Kg8 17.Nc4 N7f6 18.e4 b5 19.ab6 (19.ed5?! bc4 20.dc4 Bf3 21.Bf3 cd5 22.cd5 Qd6+/-) 19...Nb6 20.Nb6 ab6 21.Qc3 Qd7 22.Ne5 Qe6 23.Nc6 Rac8 24.b5 Bh3 25.Rfe1 Bg2 26.Kg2 Rfd8 27.Rac1 Kg7 28.Qb2 Rd3 29.Rcd1 Rd1 30.Rd1 Qe4 31.Kg1 Qf3 32.Re1 e6 33.Ne5 Qf5 34.Nd7 Rc2 35.Qd4 h5 36.Nf6 Qf6 37.Qf6 Kf6 38.Rb1 Ke5 39.Rb4 Kd5 40.Rb3 Kc4 41.Rf3 Kb5 42.Rf7 Re2 43.Rf6 g5 44.Rg6 h4 45.Rg5 Ka6 46.Rg4 hg3 47.hg3 b5 48.Rd4 Rb2 49.Kf1 b4 50.Rd6 Ka5 51.Re6 Ka4 52.Re8 b3 53.Rb8 Ka3 54.g4 Rb1 55.Kg2 b2 56.Kf3 Rc1 57.Rb2 Kb2 58.g5 1–0. linakip – goniec80, kurnik, 2012.

5.e4 Qb6 6.a3 (6.e5 Ng4 (worse is 6...Qb4 7.Bc3 Qf4 8.ef6 Bf6 9.Bf6 Qf6 10.Nbd2+–) 7.Qd2 d6=) 6...a5 (better is 6...Ne4!? 7.de4 Bb2-/+) 7.Bd4= Qc7 8.c4 0-0 9.Qb3 ab4 10.ab4 Na6 11.Be2 b5 12.0-0 Bb7 13.c5 d6 14.Nbd2 dc5 15.bc5 Rfd8 16.Rfc1 (16.Be5 Qd7 17.d4 Bc8+/-) 16...h5 (better is 16...Ne4!? 17.de4 Bd4 18.Nd4 Rd4+=) 17.Ne5 e6 18.Nef3 Rd7 (better is 18...Ne4!? 19.Bg7 Nd2+=) 19.Be5+/- Qc8 20.Qb2 Ne8 21.Bg7 Ng7 22.Ne5 Rd8 23.f4 Qc7 24.Ndf3 Nb8 25.Ra8 Ba8 26.Ng5 Rf8? 27.Nef7 Rf7 28.Nf7 Qf7 29.g3 Nd7 30.Ra1 Bb7 31.d4 Nf6 32.Bf3 Ng4 33.Ra7 Ne3 34.Qa3 Nc4 35.Qc3 Qc7 36.d5?? ed5 37.ed5+= Qb8 38.Ra1 cd5+= 39.Qf6? Kh7?? 40.c6= Ba8 41.Bd5 Ne3 0–1. bratek55 (1745) – binaki (1620), kurnik, 2012.

5.g3 d6 6.Bg2 Nbd7 7.Nbd2 0-0 8.0-0 Re8 9.Re1 e5 10.e4 a6 11.a3 Nb6 12.c4 Be6 13.Qc1 Rc8 14.Ng5 Qd7 15.Nb3 d5?? (better is 15...Na4!?=) 16.cd5 (better is 16.Nc5!? Qe7 17.ed5 cd5 18.Nge6 fe6 19.Be5+–) 16...cd5+/- 17.Ne6?? (better is 17.Nc5 Qb5 18.Nge6 fe6 19.Be5+/-) 17...Rc1–+ (17...Qe6 18.Nc5 Qc6 19.f4 ef4 20.Qf4 de4 21.de4+=) 18.Rac1 0–1. giorgo – teskniktiwer, kurnik, 2012.

5.e4 d5

6.e5 Nfd7 7.d4 0-0 8.Bd3 b6 9.0-0 e6 10.Nbd2 c5 11.bc5 bc5 12.c3 cd4 13.cd4 Nc6 14.Nb3 Nb4 15.Bb1 Qb6 16.Qd2 a5 17.a3 Nc6 18.Ba2 Ba6 19.Rfc1 Rab8 20.Rab1 Rb7? 21.Nc5 Nc5= 22.Rc5 Ne7?? 23.Bc1+– Qd8 24.Rb7 Bb7 25.Qa5 Qa5 26.Ra5 Rc8 27.Rc5 Nc6 28.Be3 Bf8= 29.Rb5 Ba6 30.Rb6 Be2 31.h4 Bf3 32.gf3 Ba3 33.h5 gh5 34.Bh6? Ne7 35.Bb1-/+ Bc1 36.f4 Bd2 37.Bd3 Ng6 38.Bg6 hg6–+ 39.Kg2 Kh7 40.Bg5 Kg8 41.Rb7?? Bc3–+ 42.Kf3 Bd4 43.Rb4 Bc3 44.Rb7 d4 45.Ke2 Ba1 46.Bf6 Bc3 47.Kd3?? Ba1 48.f3?? Rc3?? 49.Kd2= Rc8 50.Kd3 Kh7?? 51.f5?? gf5–+ 52.f4? Kg6 53.Rb1 Bc3 54.Rg1 Kh6 55.Rg7 Ba1 56.Rf7 Rc3 57.Kd2 Rf3 58.Bg7?? Kg6–+ 59.Re7 (59.Re7 Bc3 60.Ke2 Rf4 61.Bh8–+). bratek55 (1675) – riza25, kurnik, 2012.

6.e5 Nfd7 7.d4 0-0 8.Bd3 e6 9.0-0 a6 10.Nbd2 b5 11.Nb3 Bb7 12.Bc1 a5 (12...f6 13.ef6 Qf6 14.Re1+=) 13.a3 (better is 13.Na5!? Ba6 14.Bg5+–) 13...ab4+= 14.ab4 Ra1 15.Na1 Na6 16.c3 Nc7 17.Nb3 Qa8 18.Bg5 f6 19.ef6 Nf6 20.Qa1 Qa1 21.Ra1 Ra8 22.Ra8 Ba8 23.Nc5 Kf7 24.Ne5 Ke7 25.f3 Nce8 26.Na6 Kf8 27.g4 h6 28.Bf6 Bf6 29.f4 Be5 30.de5 Kg7 31.h4 Bb7 32.Nc5 Bc8 33.Kf2 g5 34.hg5 hg5 35.f5 ef5 36.gf5 Kf7 37.Kg3 Ng7 38.Kg4 Bf5 39.Bf5 Nf5 40.Kf5 Kg7 41.Kg5 Kf7 42.Kf5 Ke7 43.e6 Kd6 44.Kf6 Kc7 45.e7 d4 46.cd4 Kd6 47.e8Q Kd5 48.Qf7 Kd4 49.Qe6 Kc3 50.Qc6 Kb4 51.Nd7 Ka4 52.Qc2 Ka3 53.Qc3 Ka4 54.Qc6 Ka5 55.Nc5 Kb4 56.Na6 Ka5 57.Nc5 Kb4= ½–½. bratek55 (1670) – tengizi, kurnik, 2011.

6.e5 Nfd7 7.d4 b6 8.Bd3 a5 9.ba5 Ra5 10.0-0 c5 11.c3 (11.Bc3 Ra8+=) 11...c4 12.Bc2 e6 13.Ba3 b5 14.Bb4 Ra8 15.Nbd2 Na6 16.Bd6 Bf8 17.Bf8 Kf8 18.a4 b4 19.cb4 Nb4 20.Bb1 Qa5 21.Bc2 Nc2 22.Qc2 Kg7 23.Rfb1 Nb6 24.Rb5? Qa7?? 25.a5+= Nd7 26.Qb2 Ba6 27.Rb4 Qc7 28.Qc3 h6 29.h4 Rhb8 30.Rb8 Rb8 31.Qa3 c3 32.Nf1 c2 33.Rc1?? Rb1?? 34.N3d2?? Rc1-/+ 35.Qc1 Bd3 36.a6 Ba6 37.Ne3 Bd3 38.Nb3 Qc3 39.Nc5 Nc5 40.dc5 Qc5 41.g4 Qb5 42.Qd2 Qb1 43.Kg2 c1Q 44.Nf5 gf5 45.Qc1 Qc1 46.gf5 Bf5 (46...Bf5 47.h5 Qg5 48.Kh2 Be4 49.f3 Bf3 50.Kh3 Qg4 51.Kh2 Qg2#; 46...Qf1 47.Kg3 Bf5 48.h5 Qh3 49.Kf4 d4 50.f3 Qh4#) 0–1. bratek55 (1675) – riza25, kurnik, 2012.

6.e5 Nfd7 7.d4 e6 8.Bd3 b6 9.0-0 c5 10.bc5 bc5 11.c3 c4 12.Be2 Nc6 13.Ba3 Ne7 14.Nbd2 0-0 15.Bd6 Re8 16.Qa4 Nb6 17.Qa3 Nf5 18.Bc5 Bf8 19.g4 Ng7 20.Rab1 Bd7 21.Rb2 Qc7 22.Bf8+= Rf8 23.Rfb1 Rfb8 24.h4 Nc8 25.Kg2 Rb6 26.Rb6 Nb6 27.Qe7 Re8 28.Qa3 Rb8 29.Qe7 Re8 30.Qf6 Qd8 31.Qf4 Na4 32.Rc1 Qe7 33.Ng5 Rb8 34.h5 h6 35.Nh3 g5 36.Qf6 Qf6–+ 37.ef6 Ne8 38.f4?? gf4 39.Nf4 Nf6 40.Kg3? Rb2–+ 41.Rb1 Ne4 42.Ne4 de4 43.Rb2-/+ Nb2 44.d5 Na4 45.de6 fe6 46.Bc4 Kf7 47.Bb3 Nc3-/+ 0–1. bratek55 (1745) – sakati (1655), kurnik, 2011.

6.e5 Ng4

7.d4 b6 8.h3 Nh6 9.Bd3 Nf5 10.0-0 Be6 11.Nbd2 Qd7 12.c3 h5 13.Ng5 Nh6 14.a4 Qc8 15.Rc1 c5 (better is 15...Bf5!? 16.Be2 f6 17.ef6 Bf6+/-) 16.bc5 bc5 17.Bb5 Kf8 (better is 17...Bd7!? 18.Qf3 e6+/-) 18.Qf3+– c4?? (18...a6 19.Ne6 Qe6 20.Bc4+–) 19.Ba3 (better is 19.Ne6 Qe6 20.Bc4+–) 19...Nf5 20.Bc5 (better is 20.Ne6!? fe6 21.Nc4 a6+–) 20...Bh6 21.Ne6 Qe6? 22.Rc2 a6? 23.g4 hg4–+ 24.hg4 Nh4 25.Qg3 Bd2 26.Rd2 ab5 27.ab5 Nd7 28.Bb4 Rb8 29.Ra2 Rb5 30.Ra8 Rb8 31.Rb8 Nb8 32.Ra1 Kg7 33.Ra7 Nc6 34.Ra6 Qd7 35.Bc5? g5 36.f3 Qb7 37.Rb6 Qd7 38.Kf2?? Na5 39.f4 gf4 40.Qf4 Ng6 41.Qg5 Nb3 42.Bb4? Rh4 43.Kg3?? Rh1–+ (43...Rh1 44.Be7 Qe8 (44...Qe7?? 45.Rg6 fg6 46.Qe7 Kg8 47.e6+–) 45.Bf6 Kh7=) 0–1. bratek55 (1695) – riza25, kurnik, 2012.

7.d4 Bf5 8.Nbd2 Qc8 9.Bd3 (9.Be2!?+=) 9...Bd3= 10.cd3 b6 11.h3 Nh6 12.Rc1 Nf5 13.Qc2 Qa6 14.a3 e6 15.0-0 0-0 16.g4 b5?? (better is 16...Ne7=) 17.gf5+– ef5 18.Nb3 Nd7 (18...Re8 19.Qc3+–) 19.Nc5 (better is 19.Qc6 Qc6 20.Rc6 Nb6+–) 19...Nc5 20.Qc5 Rac8 21.Ng5 h6 22.Nf3 Qb7 23.Rfe1 Qd7 24.Re2 f4 25.Kh2 g5 26.Rg1 Qf5 27.Qc2 f6 28.ef6 Bf6 29.Ne5 h5 30.f3 Be5 31.Re5 Qg6 32.Reg5 Qg5 33.Rg5 (33.Rg5 Kf7 34.Qd2+–) 1–0. bratek55 (1705) – riza25, kurnik, 2012.

7.h3 Nh6 8.d4 0-0 9.Bd3 b6 10.0-0 Qc7 11.Nbd2 c5 12.bc5 bc5 13.c3 cd4 14.cd4 Nc6 15.Rc1 a5 16.Nb3 Ba6 17.Nc5 Bd3 18.Qd3 Qb6 19.Na4 Nb4 20.Qb3 Rab8?? 21.a3 Na6?? 22.Nb6 Nf5 23.Rc6 e6 24.g4 Ne7 25.Rd6 Nc8 26.Bc3 Re8 27.Ba5 Bf8 28.Rc6 Na7 29.Rb1 Nc6 30.Qb5 Na5 31.Qa5 Nc7 32.Qa7 Na8 33.a4 Nb6 34.Rb6 Ra8 35.Qd7 Ra4 36.Qa4 Rc8 37.Rc6 Rb8 38.Qc2 Kg7 39.g5 h6 40.h4 hg5 41.hg5 Ra8 42.Kg2 Ba3 43.Rc8 Ra4 44.Qa4 Be7 45.Qe8 Bg5 46.Ng5 Kh6 47.f4 Kh5 48.Kg3 Kh6 (48...f6 49.Qh8#) 1–0. bratek55 (1635) – riza25, kurnik, 2012.

7.h3 Nh6 8.d4 Nf5 9.Bd3 b5 10.Nbd2 a5 11.a3 ab4 12.ab4 Ra1 13.Qa1 Na6 14.c3 h5 15.0-0 Nc7 16.Qa7 Bd7 17.Ra1 0-0 18.Qb6 Qb8 19.Qb8 Rb8 20.Ra7 Rc8 21.Nb3 Be6 22.Nc5 Bf8 23.Ng5 Bh6 24.Nge6 Ne6 25.Bf5 Nc5?? 26.bc5 gf5+= 27.g3 e6 28.f4 h4 29.Kg2 hg3 30.Kg3 Kh7? 31.Kf3?? Kg7 32.Bc1 Kg6 33.Be3 f6 34.ef6 Kf6+= 35.Bf2 Bg7 36.Bh4 Kg6 37.Be7 Bf6 38.Bd6 Bh4 39.Be5 Be1 40.Rg7 Kh6 41.Re7 Bc3 42.Re6 Kh5?? 43.Bg7 Bd4 44.Rh6# 1–0. bratek55 (1665) – riza25, kurnik, 2012.

7.h3 Nh6 8.d4 Nf5 9.Bd3 b6 10.0-0 Qc7 11.Nbd2 c5 12.bc5 bc5 13.c3 cd4 14.cd4 Nc6 15.Rc1 Qb6 16.Qb3 Na5 17.Qb6 ab6 18.Bb5 Kf8? (better is 18...Bd7 19.a4 Bb5 20.ab5 Bh6+=) 19.g4 Nh6 20.Rc7 Be6 21.Rfc1 Kg8 22.Ng5 Nc4 23.Nc4 dc4 24.Ne6 fe6 25.Bc4 Kf7 26.d5 g5 27.de6 Kg6 28.Bd3 Nf5 29.Bf5 Kh6 30.Re7 Ra2 31.Bd4 Rd8 32.Be3 b5 33.Rcc7 Rg8 34.h4 Be5 35.Bg5 Rg5 36.hg5 Kg5+– 37.Rb7 h6 38.Rb5 Ra1 39.Kg2 Bd4 40.Rd7 h5 41.Rd4 hg4 42.Rg4 Kf6 43.Bd3 Ke7+– 44.Re5 Kf6 45.Rf5 Ke7 46.Rg7 Ke6 47.Re5! Kf6 48.Rge7 Ra3 49.R7e6 Kf7+– 50.Bc4 Kf8 51.Re8 Kg7 52.R5e7 Kf6 53.Re6 Kf5 54.Rf8 Kg5 55.Re5 Kg6 56.Rff5 Ra4 57.Rh5 Kf6 58.Bd3 Rg4 59.Kf3 Rd4 60.Ref5 Ke6 61.Be4 1–0. bratek55 (1630) – riza25, kurnik, 2012.

5.e4 d6

6.Be2 e5 7.0-0 Be6 8.c4 Nbd7 9.Ng5 0-0 10.Nd2 h6 11.Ne6 fe6 12.Qb3 g5 13.d4 ed4 14.Bd4 e5 15.Bb2 Kh7 16.f3 c5 17.a3 b6 18.Rfd1 Nh5 19.g3 Qe7 20.Nf1 a6 21.Qd3 Rf6 22.Ne3 Nf8? 23.Nd5 Qe6 24.Nf6 Nf6 25.Qd6 Qf7 26.Be5 Ne8 27.Qd5 Ne6 28.Qa8 Be5 29.Rab1 N8c7 30.Qc6 Kg6 31.Qb6 Bd4 32.Kg2 Qf6 33.bc5 Bc5 34.Qb3 Nd4 35.Rd4! Qd4 36.Rf1 Ne6 37.Qd3 Qe5 38.Qd5 Qf6 39.e5 Qe7 40.Bd3 Kg7 41.Bf5 Nd4 42.e6 Nf5 43.Qf5 Ba3 44.Qf7! Qf7 45.ef7 a5 46.Ra1 Bb4 47.f4 g4 48.Kf2 Kf7 49.Ke3 Ke6 50.Ke4 Kd6 51.f5 Kc5 52.f6 Kc4 53.f7 Bf8 54.Ra5 Kb4 1–0. bratek55 (1710) – feniksi (1625), kurnik, 2011.

6.Be2 Bg4 7.Nbd2 0-0 8.0-0 Nbd7 9.c4 a5 10.a3 e5 11.h3 Bf3 12.Nf3 ab4 13.ab4 Ra1 14.Qa1 Nh5 15.g3 f5 16.ef5 gf5 17.Nh4 (17.Qa7!?+=) 17...Qg5 18.Bh5 Qh5 19.Qd1 Qg5 20.Ng2 f4 21.g4 f3 22.Ne3 Qh4–+ 23.Kh2 h5?? 24.Qe1 Bh6-/+ 25.Rg1? Bf4–+ 26.Rg3 Bg3 27.fg3 Qf6 28.Qf2 hg4 29.Ng4 Qg5 30.Bc3 b5 31.Bd2 Qg6 32.cb5 cb5 33.Qe3 d5 34.Nf2 Qf5 35.Qh6 Rc8 36.g4 Qf6 37.Qf6 Nf6 38.Bg5 e4 39.Bf6 e3 40.Kg3 e2 41.Be5 e1Q 42.Kf3 Rf8 43.Bf4 Rf4! 44.Kf4 Qf2 45.Kg5 Qd4 46.h4 Qd3 47.h5–+ Qe3 48.Kg6 Qe4 49.Kg5 d4 50.h6 d3 51.Kf6 d2 52.g5 d1Q 53.g6 Qf1 (53...Qf1 54.Kg5 Qff5; 53...Qd8) 0–1. bratek55 (1710) – feniksi (1680), kurnik, 2011.

4.d3 d5

5.Qc1 c6 6.Nbd2 a5 7.ba5 Qa5 8.g3 0-0 9.Bg2 Qb6 10.0-0 Bf5 11.c4 Nbd7 12.Qc2 Rac8 13.Qb3 Qc7 14.Nd4 Bg4 15.f3 Be6 16.Ne6 fe6 17.Rfe1 Nc5 18.Qc2 Nfd7 19.e4 Nf6 20.d4 Ncd7 21.e5 Ne8 22.c5 b6 23.cb6 Qb6 24.Rab1 Ne5 25.Nb3 Nc4 26.Qf2 Nc7 27.Bc3 Qa6 28.Bf1 Qa4 29.Bd3 Na3 30.Rb2 Nab5 31.Nc5 Qa7 32.a4 Nc3 33.Rb7 Qa5 34.Qc2 Na4 35.Ne6 Qe1 36.Bf1 Qe6 37.Qa4 Qe3 38.Kg2 Bd4 39.Rb3 Qf2 40.Kh3 Qf1 41.Kg4 Qc4 42.Qa3 Bf6 43.Kh3 Qf1 44.Kg4 h5 45.Kf4 Qc4 46.Ke3–+ (46.Ke3 Qc2 47.Rd3 d4 48.Ke4 Ne6 49.Qb3 Qb3 50.Rc3 Qc3 51.h4 Qe3#). linakip – maras1667 (1635), kurnik, 2011.

5.Nbd2 c6 6.g3 a5 7.ba5 Ra5 8.Bg2 Bg4 9.0-0 Qd7 10.Qc1 0-0 11.Nb3 Ra8 12.Nc5 Qc7 13.c4 b6 14.Nb3 dc4 15.Qc4 Be6 16.Qc2 h6 17.Nbd4 Bd5 18.e4 Ba2 19.Bc3 c5 20.Nb5 Qc6 21.Qb2 Nbd7 22.Rfc1 Ra4 23.d4 Rfa8 24.d5 Nd5 25.ed5 Qd5 26.Nd2 Bc3 27.Nc3 (27.Nc3 Qe6 28.Ba8 (28.Na2?! Ra2 29.Qc3 R8a3 30.Qa3 Ra3 31.Ra3 Kg7+=; worse is 28.Ra2 Ra2 29.Na2 Ra2=) 28...Ra8 29.Na2+–; 27.Rc3?! Qg2 28.Kg2 Bd5 29.Nf3 Ra1+/-; 27.Qc3?! Qf5 28.Ba8 Ra8+–) 1–0. linakip – catarino1966, kurnik, 2011.

5.e3 (--> 4.e3 d5 5.d3).

5.g3 Bf5 6.Bg2 Nc6 7.a3 Qd7 8.0-0 Bh3 9.Nbd2 Bg2 10.Kg2 Ng4 11.c4 (better is 11.Bg7 Rg8 12.Bb2+–) 11...Bb2–+ 12.Ra2 Bc3 13.Qc2 Bd2 14.Qd2 dc4 15.dc4 Qd2 16.Rd2 f6 17.Rfd1 Nce5 18.Ne5 Ne5 (worse is 18...fe5 19.h3 Nf6 20.Kf3–+) 19.Rc2 Rd8 20.Rdc1 Rd7 21.f4 Nc6 22.e3 Kf7 23.Kf3 Rhd8 24.Rc3 Rd3 25.h4 Rc3 26.Rc3 a5 27.b5 Na7 28.a4 Rd1 29.c5 Ke6 30.Rc4 Kd5 31.Re4 e6 32.g4 Rf1 33.Ke2 Ke4 34.Kf1 Ke3 0–1. linakip – magicznylech, kurnik, 2012.

5.Nbd2 Bg4

6.g3 Bf3 7.ef3 Nbd7 8.Bg2 e5 9.0-0 0-0 10.Re1 Re8 11.a3 c6 12.c4 d4 13.Qb3 c5 14.b5 b6 15.a4 a6 16.Ne4 a5 17.Bc1 Ne4 18.Re4 f5 19.Re1 Nf6 20.Bg5 h6 21.Bd2 Re7 22.Qc2 Qd6 23.Qc1 Rae8 24.Bh6 e4 25.Bf4 Qd7 26.Bg5 ed3 27.Re7 Qe7 28.Qd2 1–0. linakip – kosths1980, kurnik, 2012.

6.g3 Bf3 7.ef3 e6 8.Bg2 0-0 9.0-0 Nc6 10.a3 a6 11.c4 dc4 12.Nc4 b5 13.Ne5 Nd4 14.Rc1 Nf5 15.Nc6 Qd6 16.f4 Nd5 17.Bg7 Ng7 18.Qb3 Kh8 19.Rfe1 Nf5 20.Be4 Nf6 21.Bf5 ef5 22.Ne5 Ng4 23.Nf7 Rf7 24.Qf7 Qd3 25.Rf1 Qd4 26.h3 Nh6+– 27.Qc7 Ng8 28.Qc3 Qc3 29.Rc3 Nf6 30.Rc6 Nd5 31.Rd1 Ne7 32.Rc7 Ng8 33.Rdd7 Nf6 34.Rf7 Ne4 35.Rh7 Kg8 36.Rhg7 Kh8 37.Rg6 Rd8 38.Rh6 Kg8 39.Rc2 Rd1 40.Kg2 Ra1 41.Ra6 Rd1 42.Ra5 Nd2 43.Rb5 Nf1 44.Rf5 Nd2 45.Rd5 Ne4 46.Rd1 Kg7 47.Rd4 Nf6 48.Rc7 Kg6 49.Rc6 Kh5 50.Rd5 (50.Rd5 Kg6 51.Rd7 Kh5 52.g4 Kg6 53.a4 Kh6 54.Rf6#; 50.g4 Kh4 51.Rd8 Ng8 52.b5 Nf6 53.Rh8 Nh7 54.Rh7#) 1–0. linakip – ostryelk, kurnik, 2011.

5.g3 0-0

6.Qc1 a5 7.b5+= c5 8.bc6 Nc6-/+ 9.a4 Qb6 10.Bf6 Bf6–+ 11.c3 d4 (11...e5 12.Nbd2-/+) 12.c4-/+ Nb4 (12...Bf5 13.Bg2-/+) 13.Bg2 Bf5 (13...Qe6 14.Qd1-/+) 14.0-0 e5 15.Ng5 (15.Nbd2 Rfe8-/+) 15...Rac8 (15...Bg5!? 16.Qg5 Nc2-/+) 16.Ne4 Bg7 17.c5 Qa7 18.Nbd2 Be6 (18...Bh6 19.Qb2+=) 19.Nc4+= f5 20.Ned6? (20.Ng5 Bh6 21.Nb6= (worse is 21.Ne5 Rc5 22.Nc4 Bc4 23.dc4 Qa6-/+)) 20...Rc5-/+ 21.Nb7 Rc4–+ 22.dc4 e4 23.Nd6 Qc5 24.Nb5 d3 25.ed3 Nd3 26.Qd2 Ba1–+ 27.Ra1 Bc4 28.Bf1 Qb4 29.Qe3 Bb5 30.ab5-/+ Qb5 31.Qd4 Rb8 32.Rd1 Qb3 33.Ra1 Qb2–+ 34.Qd5 Kg7 35.Ra2 Qb5 36.Qd4 Qe5 37.Qa7 Kh6 38.Ra5= Qb2 39.Ra2 Qb6-/+ 40.Qe7 Qd8 41.Qf7 Qg8 42.Qa7 Rb1-/+ 43.Rc2? Qb8?? 44.Qe3?? f4–+ 45.Qe4 Rf1! 46.Kg2 Re1 47.Qd3= Qb7 48.f3 Re3 49.Qd2?? Qf3–+ 50.Kh3 fg3 51.Qe3 Qe3 52.hg3 Qe6 53.Kh2 Qe4 54.Rf2 Kg5 55.Rb2 h5 56.Rb5 Kg4 57.Rb2 h4 58.gh4 Qe5 (58...Qe5 59.Kg1 Qb2 60.Kf1 Kf3 61.h5 Qf2) 0–1. Sitnic,A (1930) – Malokas,N (1890), 6th ch–Mediterranean, Antalya TUR, 2009.

6.Bg2 Bg4 7.0-0 Bf3 8.ef3 c6 9.Nd2 e6 10.a3 Nbd7 11.c4 a6 12.Qc2 Rc8 13.Rfd1 Nb6 14.a4 Nbd7 15.a5 Re8 16.Qb3 Rb8 17.Re1 h6 18.Rac1 Nh5 19.h4 Bb2 20.Qb2 Ng7 21.f4 Qf6 22.Qc2 Rbc8 23.c5 h5 24.Nf3 Nf5 25.Ne5 Qe7 26.Qd2 Kh7 27.d4 Nh6 28.Nf3 Nf5 29.Ng5 Kg7 30.Bh3 Qf8 31.Nf3 Nh6 32.Ne5 Nf5 33.Nd7 Qg8 34.Ne5 Ne7 35.Qe2 Kh7 36.Rcd1 Qg7 37.Nf3 Kg8 38.Qe5 Qe5 39.Ne5 Kg7 40.Rb1 Nf5 41.Red1 Ne7 42.Nf3 Red8 43.Ng5 Nf5 44.Bf5 ef5 45.Re1 Re8 46.Kf1 f6 47.Nf3 Re4 48.Re3 Rce8 49.Rbe1 Kf7 50.R1e2 Kg7 51.Ke1 Kf7 52.Kd2 Kg7 53.Kd3 Kf7 54.Nd2 Re3 55.Re3 Re6 56.Re6 Ke6 57.Nf3 Ke7 58.Ke3 1–0. linakip – krzyk555, kurnik, 2012.

4.d3 d6

5.Qc1 0-0 6.Nbd2 Nc6 7.a3 e5 8.g3 d5 9.c3 (worse is 9.Be5 Ne5 10.Ne5 Ng4 11.Ng4 Ba1 12.Nh6 Kg7 13.Qa1 Kh6+=) 9...e4 10.Nd4 ed3 11.ed3 Nd4 12.cd4 Re8 13.Be2 Bg4 14.f3 Bf5 15.0-0 Re2 16.Re1 Bd3 17.Nb3 Re1 18.Qe1 Bc4 19.Nc5 b6 20.Na4 Qd7 21.Nc3 Re8 22.Qf2 a5 23.Re1 Re1 24.Qe1 ab4 25.ab4 h6 26.Bc1 c6 27.Be3 Qe7 28.Bf2 Qd7 29.Na4?? c5 30.Nb2 cb4 31.Nc4 dc4 32.Qb4 b5 33.Kg2 Nd5 34.Qc5 Bf8 35.Qa7 Qe6 36.Qb8 Qc6 37.h4 (37.h4 c3 38.Be1 Ne3 39.Kf2–+). linakip – avni12345, kurnik, 2011.

5.Nbd2 0-0 6.c4 (6.e4 c5=) 6...e5 (6...c5 7.a3=+) 7.g3 (7.e4 Nc6=) 7...Bg4 (7...a5 8.b5=) 8.Bg2= c6 9.0-0 Na6 (9...Nbd7 10.h3 Be6 11.Ng5=) 10.a3 (10.b5 cb5 11.cb5 Nc7=) 10...Nc7 (10...Re8 11.d4=) 11.c5 Bf3 (11...dc5 12.bc5 Nd7 13.Qc2=) 12.Nf3 (12.Bf3 dc5 13.bc5 Ne6 14.Be5 Nd7 15.Bg7 Kg7+=) 12...e4 (12...dc5 13.bc5 Nd7 14.Bh3=) 13.de4+= Ne4 (13...dc5!? 14.e5 Nd7+=) 14.Bg7+/- Kg7 15.Qd4 Nf6 16.cd6 (better is 16.Qd6 Qd6 17.cd6+/-) 16...Ne6? (better is 16...Nb5!? 17.Qb2 Nd6+=) 17.Qe5 Kg8 18.Rfd1 Qd7?? (better is 18...Re8+–) 19.Qf6 (19...Ng7 20.e4+–) 1–0. SneekyPete – ruach, ICC, 2002.

5.Nbd2 a5 6.b5=.

5.Nbd2 a6 6.g3 Nbd7 7.Bg2 Rb8 8.0-0 0-0 9.Qc1 b5 10.a4 c5 11.c3 ba4 12.Ra4 Nb6 13.Ra5 cb4 14.cb4 Nbd5 15.Rd5 Nd5 16.Bg7 Kg7 17.Nc4 Nb4 (17...Rb4?! 18.Nd4 Nf6 19.Nc6 Rc4 20.Qc4+=) 18.Nd4 Be6 19.Qa1 Kg8 20.Ne3 Qb6 21.Ne6 fe6 22.Nc4 Qc5 23.Rc1 Qf5 24.Ne3?? Qf2 25.Kh1 Qe3 26.Re1 Nc2 27.Qd1 Ne1 28.Qe1 Rf2 29.Bf3 Rc8 30.Qa1 Rc1 31.Qc1 Qc1# 0–1. linakip – jojate19, kurnik, 2011.

5.Nbd2 Nbd7 6.g3 a6 7.Bg2 c5 8.c3 cb4 9.cb4 0-0 10.0-0 b5 11.a3 Rb8 12.Nb3 Bb7 13.Na5 Ba8 14.Nd4 Bg2 15.Kg2 Nd5 16.Ndc6 Qc7 17.Nb8 Bb2 18.Ra2 (18.Na6?! Qb6 19.Qb3 Ba1 20.Qd5 Bf6+=) 18...Nc3 19.Qc2 (19.Na6?! Qa7 20.Qc2 Na2 21.Qb2 Nb4 22.Nb4 Qa5+=) 19...Na2 20.Qc7 (20.Qb2 Rb8 21.Qa2 Rc8+=) 20...Nb8 21.Qc2 Ba3 22.Qa2 Bb4 23.Nb3 a5 24.Nd4 Bc5 25.Nb5 Nc6 26.e3 Rd8 27.d4 Bb4 28.Qc4 Nb8 29.Qc7 Rf8 30.Na7 d5 31.Nc6 Nc6 32.Qc6 e6 33.Rc1 Kg7 34.Qd7 Ra8 35.Rc7 Rf8 36.h4 h5 37.Kf3 Be1 38.Ke2 Bb4 39.f4 Kg8 40.Rc8 Kg7 41.Rf8 Kf8 42.Kf3 Kg7 43.g4 hg4 44.Kg4 1–0. linakip – stany606, kurnik, 2012.

5.Nbd2 Bg4 6.g3 Bf3 7.ef3 Nc6 8.a3 Ne5 9.Bg2 c6 10.0-0 0-0 11.f4 Ned7 12.Qc1 e6 13.c4 Nh5 14.Nf3 c5 15.b5 a6 16.a4 ab5 17.ab5 Ra1 18.Qa1 b6 19.Re1 Bb2 20.Qb2 Ng7 21.Qd2 d5 22.Ne5 Ne5 23.Re5 dc4 24.Re3 cd3 25.Rd3 Qf6 26.Rd6 Qa1 27.Bf1 Qa7 28.Kg2 Nf5 29.Rc6 Nd4 30.Rd6 Nb5?? 31.Rd7?? Nd4?? 32.Qe3 Qd7–+ 33.Qe5 Nf5 34.Be2 Qd5 35.Qd5 ed5 0–1. linakip – ostryelk, kurnik, 2012.

5.e4 a6 6.Nbd2 Nc6 7.a3 Bg4 8.Be2 0-0 9.c4 b5 10.Qc2 bc4 11.Qc4 Qd7 12.h3 Bf3 13.Bf3 Ne5 14.Qc2 Rac8 15.Be5 de5 16.Nc4 Rfd8 17.Qb2 Qd3 18.Ne5 Qd6 19.0-0 Ne4 20.Nc4 Bb2 21.Nd6 Nd6 22.Rab1 Ba3 23.Rb3 Nb5 24.Bb7 Rb8 25.Ba6 Bb4 26.Rb4 Nd6 27.Rb8 Rb8 28.Rc1 Rb6 29.Be2 c6 30.Bf3 Nf5 31.Rc6 Rc6 32.Bc6 Nd4 33.Bd5 e6 34.Bc4 Kg7 35.f3 Kf6 36.Kf2 Ke5 37.Ke3 Nf5 38.Kf2 Nd6 39.Be2 h6 40.g4 g5 41.Kg3 f5 42.gf5 ef5 43.Ba6 Nf7 44.h4 gh4 45.Kh4 Ng5 46.Kg3 f4 47.Kg4 Ne6 48.Kh5 Nd4 49.Bb7 Kf5 50.Kh6 Ne2 51.Be4 Ke5 52.Kg5 Ng3 53.Bb7 Nf5 54.Be4 Nd4 55.Kg4 Ne2 56.Kh3 Ng1 57.Kh4 Nf3 58.Bf3 Kd4 59.Kg4 Ke3 60.Bb7 f3 61.Bf3 ½–½. Adjailton (1725) – pedestriancharades28 (1725), lichess.org, 2019.

5.e4 b6 6.Be2 Bb7 7.0-0 e6 8.c4 Qe7 9.Nc3 0-0 10.Qb3 a5 11.a3 ab4 12.ab4 Ra1 13.Ra1 Nc6 14.b5 Ne5? (better is 14...Na5 15.Qc2 Ra8+/-) 15.Ne5+– de5 16.Ba3 c5?? (better is 16...Qd8 17.Bf8 Bf8+–) 17.bc6! Qc7 18.Bf8 Bc6 19.Bg7 Kg7 20.Rb1 Be8 21.Qb6 Qd7 22.Qb7 Qd4 23.Nb5 Bb5 24.Qb5 h5 25.h3 Nh7 26.Qb2 Qc5 27.Qb5 Qd4 28.c5 Ng5 29.Qc4 Qd7 30.c6 Qc7 31.Rb7 Qc8 32.Qc5 Kh6 33.h4 Ne4 34.de4 f5 35.ef5 ef5 36.Rb1 e4 37.c7 f4 38.Rb8 Qa6 39.Ba6 (39.Ba6 g5 40.Rb6 Kg7 41.Qe7 Kg8 42.c8Q; 39.Qf8 Kh7 40.Qh8) 1–0. bratek55 (1655) – picus52, kurnik, 2011.

5.e4 Bg4 6.Be2 Nbd7 7.Nd4 Be2 8.Qe2 0-0 9.0-0 b6 10.c4 c5 11.bc5 bc5 12.Nc6 Qc7 13.Ne7 Kh8 14.Nd5 Nd5 15.Bg7 Kg7 16.cd5 Ne5 17.f4 Nd7 18.Nd2 Rfe8 19.Nc4 Nb6 20.Qg4 Nc4 21.dc4 Re4 22.Rf3 Rc4 23.Rg3 Re8 24.h4 Qe7 25.h5 Qf6 26.Rf1 Ree4 27.hg6 hg6 28.Qd7 Rf4 29.Rf4 Rf4 30.Qa7 Qa1 31.Kh2 Rh4 32.Rh3 Qe5 33.Kg1 Rh3 34.gh3 Qd5 35.a4 c4 36.a5 c3 37.a6 c2 38.Qc7 Qc5 39.Qc5 dc5 40.a7 c1Q 41.Kf2 Qa3 0–1. Adjailton (1880) – Lendvisory (1780), lichess.org, 2020.

5.Nbd2 b6

6.g3 Bb7 7.Bg2 Nc6 8.a3 e6 9.Qc1 Qd7 10.e4 Qe7 11.Kf1 Nh5 12.Bh3 Bb2 13.Qb2 0-0-0 14.Kg2 Rhg8 15.Rhg1 f5 16.Kh1 fe4 17.Ne4 d5 18.Ned2 Kb8 19.Bg2 Nf6 20.c4 dc4 21.dc4 Ng4 22.Nb3 Rd7 23.c5 Rgd8 24.cb6 ab6 25.Qc3?? Nf6 26.a4 Nd5 27.Qc4 Ncb4 28.a5 ba5 29.Na5 Ba6?? 30.Qb3 c5?? 31.Nc6+– Kc7 32.Ne7 Re7 33.Ne5 Rb8 34.Qd1 Rd7 35.Rc1 c4 36.Qf3 Rdd8 37.Nf7 Rf8 38.Qf6 Nf6–+ 39.Ne5 Nfd5 40.Nc4 Bc4 41.Rc4 Kd6 42.Rgc1 Rf2 43.Bd5 Nd5 44.Rc6 Ke5 45.Re1 Kf5 46.Rce6 Rbb2 47.R6e5 Kf6 48.h4 Rh2 49.Kg1 Rbg2 50.Kf1 Rf2 51.Kg1 Nc3 52.Re6 Kg7 53.Re7 Kh6 54.R7e3 Nd5 55.Re5 Nf6 56.Re6 Ng4 57.R6e4 Rhg2 58.Kh1 Nf6 59.Re6 Nd5 60.R6e5 Nc3 61.R5e3 Rc2 62.Re7?? Nd5 63.R7e5 Nf6 64.Re6 Nh5 65.R6e5 Ng3# 0–1. linakip – slavisko, kurnik, 2012.

6.g3 Bb7 7.Bg2 e6 8.c4 Nbd7 9.a3 Qe7 10.0-0 0-0 11.Qb3 c5 12.b5 d5 13.Ne5 Ne5 14.Be5 dc4 15.Nc4 Bg2 16.Kg2 Qb7 17.Kg1 Nd5 18.Qb2 Be5 19.Qe5 Rad8 20.Rfc1 Qc7 21.a4 Qe5 22.Ne5 Ne7 23.a5 f6 24.Nc4 Nd5 25.ab6 ab6 26.Ra6 Rb8 27.Nd6 Rfd8 28.Nc4 f5 29.Kg2 Rb7 30.h3 Rdb8 31.f3 Nb4 32.Ra3 Nd5 33.e4 fe4 34.fe4 Nb4 35.Nd6 Rd7 36.e5 Kf8 37.d4 Ke7 38.dc5 bc5 39.Rc5 Rd6 40.ed6 Kd6 41.Rac3 Nd5 42.R3c4 Ne3 43.Kf3 Nc4 44.Rc4 Rb5 45.Kf4 Kd5 46.Re4 Rc5 47.Re5 Kd4 48.Re6 Rf5 49.Kg4 Kd5 50.Re7 h5 51.Kh4 Kd6 52.Rg7 Rf6 53.Kg5 Ke6?? 54.h4 Rf5 55.Kg6 Rf3 56.Kh5 Kf6 57.Rg6 Kf7 58.Rg5 Rf6 59.g4 Rd6 60.Rf5 Kg7 61.Kg5 Rg6 62.Kf4 Rh6 63.h5 Re6 64.g5 Re1 65.h6 Kg6 66.Rf6 Kh7 67.Kf5 Rf1 68.Ke6 Re1 69.Kf7 Rc1 70.Ke8 Rc8 71.Kd7 Rg8 72.Rf5 Kg6 73.Re5 Rf8 74.Ke7 Rf7 75.Ke6 Rf8 76.Ke7 Rf7 77.Kd6 Rf8 78.Kd5 Rg8 79.Ke6 Re8 80.Kd5 Rd8 81.Ke4 Rf8 82.Kd5 (82.Kd5 Rd8 83.Kc5 Rc8 84.Kd4 Rd8 85.Rd5+–) 1–0. linakip – popeti, kurnik, 2012.

5.Nbd2 e5

6.g3 0-0 7.Bg2 c6 8.a3 b5 9.c4 a6 10.0-0 bc4 11.Nc4 Nbd7 12.Rc1 Nb6 13.Na5 Bd7 14.Nd2 d5 15.Be5 Qe7 16.Bd4 (16.Nc6?! Bc6 17.Rc6 Qe5 18.Rb6 Qc7 19.Rf6 Bf6 20.Bd5 Rad8+–) 16...Nc8 17.Bc5 Nd6 18.e4! Qe5 (18...de4 19.Ndc4 Combination) 19.d4 Qe6 20.e5 Nfe4 21.Ne4 de4 22.ed6 Rfe8 23.Re1 Rac8 24.Qb3 Qb3 25.Nb3 Be6 26.Nd2 Bd5 27.Nc4 Rb8 28.Nb6 Re6 29.Bh3 f5 30.Nd5 Bf8 31.Nc7 Rd6 32.Bd6 Bd6 33.Na6 Ra8 34.Nc5 Ra3 35.Ra1 Rb3 36.Reb1 (36.Reb1 Rb1 37.Rb1+–) 1–0. linakip – vasyflory, kurnik, 2012.

6.g3 a6 7.Bg2 c6 8.Qc1 0-0 9.0-0 Nbd7 10.a3 b5 11.c4 bc4 12.Nc4 d5 13.Na5 c5 14.Ne5 Ne5 15.Be5 Rb8?? (15...cb4!? 16.ab4 Bg4+/-) 16.Qb2 Rb5 17.Rab1 (better is 17.Nc6 Qd7 18.Bf6 Bf6 19.Qf6+–) 17...Nh5 18.Bg7 Ng7 19.Nc6 Qd6 20.Ne5 cb4 21.ab4 Be6 22.Nf3 h6 23.Nd4 Rb6 24.Nc2 Rfb8 25.Qd4 Nf5 26.Qf6 a5 27.b5 Rb5 28.Rb5 Rb5 29.Nd4 Nd4 30.Qd4 Rb4 31.Qa7 a4 32.Ra1 Qd7 33.Qa8 Kg7 34.Bf1 d4 35.Qa5 Qb7 36.Ra4 Ra4 37.Qa4 Qd7 38.f3 (38.f3 Qa4 39.Kf2–+). linakip – asibbulla, kurnik, 2011.

6.g3 b6 7.a3 Bb7 8.Bg2 Nbd7 9.0-0 Rb8 10.Qc1 0-0 11.e4 a6 12.a4 c6 13.c4 h6 14.Qc2 c5 15.Qb3 Qe7 16.Bc1 Nh5 17.Nb1 Kh7 18.Nc3 f5 19.Nd5 Bd5 20.ed5 Bf6 21.Bd2 e4 22.Rfe1 Ba1 23.de4 Be5 24.ef5 Rf5 25.Nh4 Rff8 26.Bf3 Qf6 27.Qd3 Ng7 28.Be4 Kg8 29.Bh6 Qf2 30.Kh1 Qe1 31.Kg2 Rf2 32.Kh3 Qg1 33.Ng2 Nf6 34.Be3 Rg2! 35.Bg2 Qa1 36.b5 ab5 37.ab5 Kf7 38.Bg5 Rh8 39.Bh4 g5 40.Qf3 g4 41.Qg4 Ng4 42.Kg4 Qd4 43.Kf3 Rh4 44.gh4 Nf5 45.Bh3 Nh4 46.Ke2 Kf6 47.Bf1 Qc4 48.Kf2 Qf4 49.Ke2 Qh2 50.Kd3 Kf5 51.Be2 Kf4 52.Kd2 Qf2 53.Kd1 Ke3 54.Bg4 Qd2# 0–1. linakip – kamenicalii11, kurnik, 2012.

6.g3 Be6 7.Bg2 0-0 8.a3 c6 9.0-0 Nd5 10.c4 Nc7 11.Nb3 f6 12.Na5 Qc8 13.Nd2 Nd7 14.b5! b6 15.Nc6 Nc5?? (15...Rf7 16.Nb4+–) 16.Nb3 (better is 16.Ne7!? Kh8 17.Nc8 Rac8+–) 16...Nb3?? (16...Qd7 17.Nc5 dc5 18.f4+/-) 17.Qb3 (better is 17.Ne7 Kh8 18.Nc8 Na1 19.Ba8 Rc8+–) 17...d5?? (better is 17...Re8+–) 18.Ne7 Kh8 19.Nc8 Rac8 20.cd5 Bf7 21.e4 Ne8 22.a4 Nd6 23.Ba3 Rfd8 24.Rac1 Bf8 25.Rc8 Rc8 26.Rc1 Ra8 27.Rc7 Kg7 28.Qc3 g5 29.Bh3 h5 30.Be6 Kg6 31.Bf7 Nf7 32.Qc2 Ba3 33.Rc8 Rc8 34.Qc8 h4 35.Qf5 Kg7 36.g4 Bc5 37.Kg2 Nd6 38.Qd7 Nf7 39.Qa7 Kg6 40.Qc7 Bd4 41.Qc4 Kg7 42.h3 Kf8 43.Qc8 Ke7 44.Qa8 Nd6 45.a5 ba5 46.Qa5 Nc8 47.Qc7 (47.Qc7 Ke8 48.Qc8 Kf7 49.Qc7 Kf8 50.d6 Kg8 51.d7 Bc5 52.d8Q Bf8 53.Qce7 f5 54.Qdf8#) 1–0. linakip – spimar, kurnik, 2012.

6.g3 Bg4 7.Bg2 Nc6 8.0-0 a6 9.a3 0-0 10.c4 Ne7 11.Qc2 c6 12.Rfe1 d5 13.Rad1 e4 14.de4 Ne4 15.Ne4 Bb2 16.Qb2 Nf5 17.cd5 h5 18.dc6 Qb6 19.cb7 (better is 19.Nf6 Kh8 20.Nd5 Ng7 21.Nb6 Rae8 22.cb7 Be6+–) 19...Qb7 20.Nd6 (better is 20.Nf6 Kh8 21.Ng4 f6 22.Nfe5+–) 20...Nd6 21.Rd6 Rab8 22.Qd2 h4 23.Ne5 Qe7 24.Ng4 Rbe8 (24...Rbd8 25.Rd3+–) 25.Nf6 Kg7 26.Ne8 Re8 27.Qd4 Kg8 28.e3 hg3 29.hg3 Qg5 30.Rd1 Kh7 31.Qd5 Re3 32.Qg5 (32.Qg5 Re1 33.Re1 Kg7 34.Qf6 Kh6 35.Qf7 Kg5 36.Qg6#; 32.Qf7 Kh6 33.Qf8 Kh7 34.fe3 Qe3 35.Kf1 Qg1 36.Kg1 g5 37.Be4#) 1–0. linakip – gedis1, kurnik, 2012.

5.e4 0-0

6.a3 a5 7.c3 b6 8.Nbd2 Bb7 9.Be2 Nc6 10.0-0 e5 11.b5 Ne7 12.c4 Nh5 13.h3 Nf4 14.Nb3 f5 15.ef5 Nf5 16.Kh2 Nh4 17.g3 Nf3 18.Bf3 Bf3 19.Qf3 Nh3 20.Qd5 Kh8 21.Kh3 Qg5 22.Rh1 Qf5 23.g4 Qf2 24.Rh2 Rf3 25.Qf3 Qf3 26.Kh4 Bf6 27.g5 Qf4 28.Kh3 Bg5 29.Rah1 Qe3 30.Kg4 h5 31.Rh5 gh5 32.Rh5 Kg7 33.Rg5 Kf6 34.Rf5 Ke6 35.Bc1 Rg8 36.Kh4 Qg3 37.Kh5 Qg6 38.Kh4 Qf5 0–1. Adjailton (1790) – Gressia (1680), lichess.org, 2019.

6.Na3 Na6 7.b5 A) 7...Nb8 8.Be2 (8.Nc4 a6 9.a4 Bd7 10.b6=) 8...a6 9.0-0 Bd7 10.c4=; B) 7...Nc5 8.Be2 e5 9.0-0 Na4 10.Bc1+=.

6.Na3 c5 7.c3 A) 7...Na6 8.Nc2 (8.Qd2 d5 9.e5 Ng4 10.b5=) 8...Bg4 9.Be2 cb4 10.cb4=; B) 7...Bg4 8.bc5 (8.h3 Bd7 9.Be2 Na6 10.Qd2+=) 8...dc5 9.h3 Be6 10.Be2=.

6.Na3 c5 7.bc5 Ne4 (7...dc5!? 8.Nc4 (8.Rb1 Be6+= 9.c4 Nc6 10.Be2=) 8...Nc6 9.Be2 b5 10.Ne3=; 7...Qa5 8.Qd2 (8.Nd2 dc5 9.Nac4 Qc7 10.Rb1=) 8...Qc5 9.c4 Nc6 10.Be2=) 8.Bg7+= Kg7 (8...Qa5 9.Nd2 Nd2 10.Qd2+/-) 9.de4 Qa5 10.Qd2 Qa3 11.cd6 Qd6 12.Qc3 Qf6 13.e5 (13.Qf6 Kf6 14.e5 Kg7+=) 13...Qc6= 14.Qe3 (14.Qc6 Nc6 15.Bb5 Rd8=) 14...Qc2+= 15.Be2 Nc6 16.0-0 Bf5 17.Rfe1 Qe4 18.Qc1 Rac8 19.Bf1 (19.Bb5 Qd5 20.Bc6 Rc6+=) 19...Qa4-/+ 20.Qe3 Rfd8 21.h3 Nd4 22.Nh4 Be6 23.Bd3 Nc2 24.Bc2 Rc2 25.Qg5 Rdd2–+ 26.f4? Bh3 27.Rf1 Qe4 28.Kh2 Bg2 29.Rfe1 Bf1 30.Kg1 Qd4 (30...Qd4 31.Re3 Qe3 32.Kf1 Qf2#) 0–1. Nikolaevsky – Zhurakhov, Kiev, 1970.

6.Na3 Nbd7 A) 7.Rb1 A1) 7...c5 8.bc5 (8.Qd2 cb4 9.Qb4 Nc5 10.Be2=) 8...Nc5 9.Qd2 a6 10.c4=; A2) 7...Re8 8.Nc4 (8.Be2 e5 9.0-0 d5 10.Nd2=) 8...d5 9.ed5 Nb6 10.Be2=; B) 7.Be2 B1) 7...a6 8.0-0 (8.Rb1 a5 9.b5 Nb6 10.0-0=) 8...a5 9.b5 Nc5 10.Bd4=; B2) 7...c5 8.bc5 (8.c3 Re8 9.0-0 Qc7 10.Qb3=) 8...Nc5 9.0-0 Bd7 10.c4=.

6.c4 c5 7.bc5 dc5 8.Be2+=.

6.Nbd2 c6 7.a4 (7.d4 a5 8.b5 a4=) 7...Qb6 8.c3 Ng4 (8...c5 9.a5 Qc6 10.Be2=) 9.d4+= a5 (9...c5 10.a5 Qc7 11.Bc4+=) 10.Rb1 (10.Nc4!? Qc7 11.Na5+–) 10...ab4= 11.cb4 (11.h3!? Nf6 12.a5=) 11...Qb4=+ 12.Be2 (12.Qc1 d5 (12...Qa4? 13.Ra1+–) 13.e5 Qb6=+ (13...Qa4? 14.Ra1+–)) 12...Qa4 (12...d5 13.0-0–+) 13.Qa4 (13.Qc1!? Qa7 14.Ra1-/+) 13...Ra4–+ 14.0-0 Nd7 (14...d5 15.e5–+) 15.h3 Nh6 (15...Ngf6 16.Ra1 b5 17.Ra4 ba4 18.Ra1-/+) 16.e5 (16.Rfc1 f5-/+) 16...de5 (16...Nb6 17.Bc1 Nd5 18.Bc4–+) 17.de5 b5 18.Bd3 (18.Rfc1 Nb8–+) 18...Nc5 (18...Rd8 19.Be4 Nb8 20.Bc2–+) 19.Bc2 Ra2 20.Be4? (20.Rfc1–+) 20...Bf5 (20...Ne4 21.Ne4 Bf5 22.Rfe1–+) 21.Bf5 Nf5 22.Bc3 (22.g4 Nh6–+) 22...Rfa8 (22...Na4 23.Ba1–+) 23.Bb4 (23.g4 Nh6–+) 23...Nd3 24.Bc3 Rb8 (24...h5!? 25.Rfd1–+) 25.Ne4 b4 (better 25...c5 26.g4 Nh6 27.Rfd1–+) 26.Bd2? (better 26.Rfd1 Re2 27.Ng3 Nf2 28.Rb4–+) 26...c5 27.Rfc1 (27.g4 Nd4 28.Nd4 cd4–+) 27...Rc8 (better 27...Nc1 28.Bc1 c4 29.g4–+) 28.Rc4 (28.g4 Nc1 29.Rc1–+) 28...Ne5 (better 28...Be5 29.Bb4 Nd6 (29...Nb4?! 30.Ne5 Na6 31.Nd7-/+) 30.Ne5 Nc4 (30...Nb4?! 31.Rc5 Rc5 32.Nc5-/+; 30...Ne5?! 31.Rc5 Rc5 32.Nc5-/+) 31.Nd3 cb4 32.Rb4 Nd2–+) 29.Ne5 Be5 30.Bb4 Bd4 (30...cb4 Exploits the pin 31.Rc8) 31.Bc3? (31.Bc5 Bc5 32.Rc5 Rc5 33.Nc5 Rc2-/+) 31...Ra3?? (better 31...Nd6 32.Nd6 Bf2 33.Kh2 ed6–+) 32.Bd4-/+ Nd4 33.Kh1 (33.Rb7 f5 34.Rc5 Raa8-/+) 33...Ra5 (33...Nb3 34.g4–+) 34.Rbc1 (better 34.Nc5!? e5 35.Rbc1-/+) 34...Ne6–+ 35.Kh2 f5 36.Nd2 Nf4?? (36...Rb8 37.R4c2–+) 37.Nf3?? (37.Rf4 Kf7 38.Nb3+–) 37...e5?? (better 37...Nd3 38.R1c2 e5–+) 38.Ne5-/+ Nd5 (better 38...g5!?-/+) 39.Nd7 Nf6?? (better 39...Kf7=) 40.Nf6+– (40.Nf6 Kf7 41.Nd7+–) 1–0. aravind555 (1825) – oarwaschl (1890), lichess.org, 2020.

6.Nbd2 Nc6 7.b5 Na5=.

6.Nbd2 Nc6 7.c3 a5 (7...d5 A) 8.Be2 A1) 8...Qd6 9.Qc2 (9.b5 Ne5 10.Ne5 Qe5 11.d4=) 9...Bg4 10.b5 Bf3 11.Nf3=; A2) 8...de4 9.de4 Qd6 10.Qc2 Rd8 11.Rd1=; B) 8.b5 B1) 8...Na5 9.Be2 (9.c4 de4 10.de4 a6 11.Be2=) 9...c6 10.c4 cb5 11.cd5+=; B2) 8...Nb8 9.c4 (9.e5 Nfd7 10.d4 a6 11.a4=) 9...de4 10.de4 a6 11.Be2=; 7...Ne5 A) 8.d4 A1) 8...Ned7 9.Bd3 (9.Be2 e5 10.Qc2 Re8 11.d5=) 9...d5 10.0-0 a5 11.b5+=; A2) 8...Nf3 9.Qf3 Bg4 10.Qg3 e5 11.Bd3=; B) 8.Ne5 de5 9.Nc4 (9.Be2 a5 10.b5 a4 11.0-0=) 9...Nh5 10.Qf3 b5 11.Na5=) 8.b5 (8.Qa4 Nd7 (8...Na7 9.Qa5 h6 10.d4 d5 11.e5+=) 9.b5 (9.Nc4 f5 10.Be2 fe4 11.de4=) 9...Nce5 10.Ne5 de5 11.Be2=) 8...Nb8 (8...Ne5 9.Ne5 (9.d4 Nf3 10.Qf3 Bg4 11.Qg3=) 9...de5 10.d4 Nd7 11.Rc1=; 8...Na7 9.c4 (9.d4 c6 10.bc6 Nc6 11.Rb1=) 9...c6 10.d4 cb5 11.cb5=) 9.a4 (9.d4 c6 10.Bd3 d5 11.a4=; 9.Be2 c6 10.d4 cb5 11.Bb5=) 9...Nbd7 (9...c5 10.Be2 Nbd7 11.0-0+=) 10.d4 (10.Be2 Nc5 11.0-0+=) 10...b6 (10...e5 11.Bd3=) 11.Bd3 Bb7 12.0-0 c5 13.d5 (13.bc6 Bc6 14.Bc1 Rc8+=) 13...e6 14.c4 ed5 (14...Nb8 15.Re1+=) 15.ed5 (15.cd5 Ne8 16.Bg7 Kg7+/-) 15...Re8 16.Rb1 Ne5 17.Ne5 de5 18.Ne4 (18.Qf3 Nh5+=) 18...Ne4= 19.Be4 f5 20.Bc2 e4 (20...Qd7 21.Qe2+=) 21.Bg7+= Kg7 22.Qd2 Qh4 23.Rb3 Re7 24.Rh3 Qf6 25.Qh6 Kg8 26.Re1 Rae8 27.Kf1 f4 28.Rh4 Qc3 29.Bb1 Qc4 30.Kg1 Bd5 31.Qf4 Rf7 32.Qd2-/+ Ref8 33.f3?? e3!–+ 34.Rc4 ed2 35.Rd1 Bc4 36.Rd2 Bb3 37.Rd6 Ba4 38.Rb6 c4 39.Ba2 Bb3 40.Bb1 a4 41.Rc6 a3 42.Ra6 c3 43.Ra3 c2 (43...c2 44.Bc2 Bc2–+) 0–1. mic (2100) – gbsrao (2135), net–chess.com, 2007.

6.Nbd2 Bg4 7.h3 Be6 8.d4 d5 9.e5 Ne4 10.Ne4 de4 11.Nd2 f5 12.ef6 ef6 13.Ne4 f5 14.Nc5 Qe7 15.Be2 Bc4 16.Nd3 b5 17.0-0 Nd7 18.Re1 Qd6 19.Nc5 Be2 20.Qe2 Rab8 21.Rad1 Nc5 22.dc5 Qc6 23.Bg7 Kg7 24.Qe5 Kg8 25.Qe6 Qe6 26.Re6 Rbe8 27.Re8 Re8 28.Rd7 Rc8 29.c6 h5 30.f4 Kf8 31.Kf2 a6 32.Kg3 Ke8 33.Kh4 Rd8 34.Rd8 Kd8 35.Kg5 Ke7 36.Kg6 Ke6 37.Kh5 Kd6 38.Kg5 Kc6 39.Kf5 Kd5 40.h4 Kc4 41.a3 Kc3 42.h5 Kc2 43.h6 Kb3 44.h7 Ka3 45.h8Q Kb4 46.Qd4 Ka5 1–0. karoo54 (1615) – meblostyl, kurnik, 2012.

6.Be2 b6 7.0-0 Bb7 8.a4 c5 9.bc5 bc5 10.c4 Nc6 11.Nc3 Rb8 12.Nd5 Nb4 (12...e6 13.Nf6 Bf6 14.Rb1=) 13.Nf6 ef6 14.a5 a6 (14...Re8 15.Re1=) 15.Bc3 (15.Qd2 Re8+=) 15...Nc6 Exerts pressure on the isolated pawn (15...Re8!?=) 16.Qd2+= Qd7 17.h3 (17.Qf4 Qd8+=) 17...f5= 18.Bg7 Kg7 19.Qc3 Kg8 20.Rab1 (20.Rfe1 fe4 21.de4 f5=) 20...Nb4 (20...Rfe8 21.Nd2=+) 21.Qf6 (better 21.Nd2!?=) 21...fe4 22.de4 Be4 23.Rbd1 Rbd8 24.Ng5 Bc2 (24...Qf5 25.Ne4 Qe4 26.Rd2=+) 25.Rd2 (better 25.Bg4!? Bf5 26.Ne4 Bg4 27.hg4=) 25...Qf5-/+ 26.Qf5 Bf5 27.g4 Bc8 (27...Bc2 28.Nf3-/+) 28.Bf3 (28.Rfd1 Nc6=+) 28...Kg7 (28...f5 29.Re1-/+) 29.Rfd1=+ h6 30.Ne4 d5?? (better 30...Bb7!? 31.Rd6 Rd6 32.Rd6 Re8=+) 31.cd5 (31.Nc5!? f5 32.cd5+-) 31...c4+/- 32.Nc5 Rd6 (better 32...c3!? 33.Rd4 c2+/-) 33.Rd4 Rfd8 (better 33...Nd3!? 34.Nd3 cd3 35.R4d3 f5+/-) 34.Rc4 Nc6? (34...Rf6 35.Kg2 Rf3 36.Kf3 Rd5 37.Rd5 Nd5+-) 35.Ne4 (35.dc6?! Rd1 36.Bd1 Rd1 37.Kg2 Rd6+-) 35...Ne5 (35...Na5 36.Nd6 Nc4 37.Nc4+-) 36.Nd6 Nf3 37.Kg2 Ne5 (37...Rd6 38.Rc8 (worse 38.Kf3 Bd7+-) 38...Ne5 39.f4+-) 38.Rc8 (38.Nc8?! Nc4 39.Nb6 Na5+=) 38...Rd6 39.f4 Nd7 40.Rc6 (40.Rc6 Rf6 41.d6 Rf4 42.Ra6+-) 1-0. spojar (2085) - ant1999chess (2060), Rated Blitz game, lichess.org, 2014.

6.Be2 c5=.

6.g3 c5 7.b5 (7.bc5 Qa5 8.Qd2 Qc5+=) 7...Bg4 8.Bg2 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qb5 13.0-0 Nbd7 14.h3 Be6 15.Ng5 h6 16.Ne6 fe6 17.Nd2 d5 18.Qb1 Qc6 19.ed5 ed5 20.Qb2 d4?? (better is 20...b5–+) 21.Bc6+– dc3 22.Qb3 Kh7 23.Bd7 Nd7 24.Ne4 b6 25.Qe6 Nf6 26.Nf6 ef6 27.Qb6 f5 28.Re1 f4 29.Re7 fg3 30.fg3 h5 31.Qc5 Kh6 32.h4 Bf6 33.Rh7! Kh7 34.Qf8 Bd4 35.Kg2 Bg7 36.Qf7 1–0. Jokmin,Alex – Hernandez Sanchez,Agustin Hector, ZN–2010-0-00980, 2010.

5.e4 c6

6.Be2 Qc7 7.0-0 e5 8.Nbd2 0-0 9.c4 Nbd7 10.Qb3 Re8 11.Rac1 Nf8 12.Rfd1 Ne6 13.g3 Nd7 14.Nf1 Nd4 15.Nd4 ed4 16.f4 c5 17.a3 b6 18.Bf3 Bb7 19.b5 Re7 20.Re1 Rae8 21.Qd1 f5 22.Nd2 Nf6 23.Qe2 Qb8 24.Qg2 Qa8 25.e5 de5 26.Bb7 Qb7 27.Qb7 Rb7 28.fe5 Ng4 29.Nf3 Ne3 30.Rb1 Rbe7 31.Bc1 Be5 32.Be3 de3 33.Re2 Bd4 34.a4 Kg7 35.Kg2 Kf6 36.h4 h6 37.Rb3 Rh8 38.a5 g5 39.ab6 ab6 40.Ra3 g4 41.Ne1 Rb8 42.Nc2 Ree8 43.Ra7 Kg6 44.Rd7 Rbd8 45.Rb7 Rd6 46.Rc7 Kf6 47.Rc6? Rc6–+ 48.bc6 Re7 49.Kf1 Kf7 50.Kg2 Ke8 51.c7? Kd7 52.c8Q Kc8 53.Nd4 cd4 54.Kf1 Kc7 55.Ra2 Kc6 56.Ke2 Rf7 57.Ra8 f4 58.gf4 Rf4 59.Rc8 Kd7 60.Rh8 Rf2 61.Ke1 Ra2 62.Rh7 Kc6 63.Rh6 Kc5 64.Rh5 Kb4 0–1. bratek55 – brytan73 (1790), kurnik, 2011.

6.Be2 Bd7 7.0-0 Qc8 8.c4 b5 9.Nbd2 bc4 10.Nc4 d5 11.ed5 cd5 12.Nce5 Be6 13.Qa4 Nbd7 14.Rac1 Qb7 15.Nd7 (15.Nd4!?+/-) 15...Bd7+= 16.Qb3 0-0 17.Ne5 Be6 18.Bf3 h5 (18...Rfc8 19.a3=) 19.Rc5 (19.Rfe1 Kh7+/-) 19...Rfb8 (19...Ne4 20.Rc2 Ng5 21.Be2+=) 20.a3 a5 21.b5 a4 22.Qb4 Ra5?? 23.Bc3 Rb5= 24.Rb5 Qb5 25.Qb5 Rb5 26.Bb4 Nh7 27.d4 Bf6 28.Be2 Rb7+= 29.Rc1 Ng5 30.f3 Bf5-/+ 31.Ba6 Ra7 32.Bb5 e6?? 33.h4?? Nh7+= 34.g3 g5 35.Rc8 Kg7 36.hg5 Ng5 37.Kg2 Be5 38.de5 Bg6 39.Bc5 Rb7+= 40.Bf8 Kh7 41.Rc5 1–0. bratek55 (1705) – riza25, kurnik, 2012.

6.Be2 Nbd7 7.0-0 0-0 8.c4 h6 9.Nbd2 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 Qb6 13.Rb1 e5 (13...Qc7 14.d4+=) 14.h3 (better is 14.c5!? Qc7 15.Nc4+/-) 14...Nh5+= 15.Bf1 Ndf6? (15...f5 16.d4 fe4 17.Ne4+=) 16.Qa5 (better is 16.c5 Qd8 17.cd6+/-) 16...Qc7?? (better is 16...Qa5 17.ba5 c5+=) 17.Qc7+– Nf4 18.Qd6 N6h5 19.Be5 f6 20.Bf4 Nf4 21.Qf4 1–0. bratek55 (1695) – mattoth, kurnik, 2011.

6.Be2 Be6 7.0-0 Qd7 8.c4 h5 9.Nbd2 Ng4?? (9...Na6 10.a3+/-) 10.Qc2 (better is 10.Bg7 Rg8 11.Bc3+–) 10...Bb2 11.Qb2 f6 12.c5 d5 13.h3 Nh6 14.e5 Bh3 15.ef6?? (15.gh3 Qh3 16.ef6 Qg4 17.Kh1 Qh3 18.Nh2 Ng4 19.Bg4 hg4+–) 15...Bg2?? 16.Qe5?? Bf1–+ 17.Kf1 Nf7 18.Qf4 e5! 19.Qh4? Qg4 20.Qg4 hg4 21.Ng1 Nd7 22.Bg4 Nf6 23.Be6 Ng5 24.Bd5 Nd5 25.Ngf3 Nf3 26.Nf3 0-0-0 27.Ke2 Nf4 28.Ke3 Nd3 29.Rg1 Nb4 30.Ne5 Rhe8 31.f4 Nd5 32.Ke4 Nc3 33.Ke3 Nb5 34.Rg6 Rd3 35.Ke4?? Rd4 36.Ke3 Ra4 37.Rg2 Nc3 38.Kf3 Nd5 39.Rg5 Rf4 40.Kg3 Ra4 41.Nf7 Ra2 42.Nd6 Kd8 43.Ne8 Ke8 44.Rg8 Kf7 45.Rb8 Rb2 46.Kf3 a6 47.Rh8 Kg7 48.Rh1 Nf6 0–1. bratek55 (1675) – riza25, kurnik, 2012.

6.Be2 Bg4 7.Nbd2 Bf3 8.Nf3 Nbd7 9.0-0 a5 10.a3 0-0 11.c4 e6 12.Qb3 ab4 13.ab4 Qc7 14.h3 d5 15.ed5 cd5 16.c5 b6 17.Rfc1 bc5 18.bc5 Ra1 19.Ba1 Rb8 20.Qc2 Ne8 21.Bg7 Kg7 22.d4 Qc6 23.g3 Rc8 24.h4 Nef6 25.Ng5 h6 26.Nh3 Ne4 27.Bf3 Ndf6 28.Nf4 g5 29.hg5 hg5 30.Nd3 g4 31.Ne5 Qb5 32.Ng4 Ng4 33.Bg4 Nf6 34.Be2 Qc6 35.Kg2 Re8 36.Rh1 e5?? 37.Qf5 ed4 38.Qg5 Kf8 39.Bf3 d3+/- 40.Rh8 Ke7 41.Qe5 Qe6 42.Re8 Ne8 43.Qd5 Qd5 44.Bd5 Nf6 45.Bb3 Kd7?? 46.Ba4 Kc7 47.Kf3 Nd5 48.Bb3 Nb4 49.Ke4 Kc6? 50.Kd4 d2+/- 51.Kc4 Na6 52.Ba4 Kc7 53.Bd1 Nb8 54.Bf3 Nd7 (54...Nd7 55.Kc3 Ne5+/-). bratek55 (1715) – mathews20, kurnik, 2011.

5.e4 Nc6

6.a3 0-0! 7.Be2 e5 8.0-0! Bg4 9.Nbd2 Nd7 10.h3 Be6 11.c4 f5 12.Qc2 f4 13.Kh2 g5 14.Ne1 h5 15.f3 Nf6 16.Nb3 g4 17.fg4 hg4 18.b5 g3 19.Kg1 Qd7 20.bc6 bc6 21.h4 Rab8 22.Nf3 Ng4 23.Bc1 Qf7 24.Ng5 Qh5 25.Ne6 Qh4 26.Rf3 Qh2 27.Kf1 Qh1# 0–1. sacaniev (1615) – nobilek (1660), kurnik, 2012.

6.b5 Nb8 7.Be2 Bg4 8.Nbd2 Nbd7 9.0-0 0-0 10.a4 e5 11.c4 Nc5 12.Ba3 b6 13.h3 Bf3 14.Nf3 (14.gf3? Nh5 15.Kh2 Qh4–+) 14...Nfd7 15.Qc2 f5 16.ef5 e4 17.de4 Ba1 18.Ra1 gf5 19.ef5 Qf6 20.Bb2 Qf5 21.Qf5 Rf5 22.Nd4 Rf7 23.Bf3 Raf8 24.Bd5 Nf6 25.Bf7 Rf7 26.a5 Nfe4+/- 27.f3 Nd2 28.ab6 ab6 29.Ra8 Rf8 30.Ra7 Nc4 31.Bc1 Rc8 32.Nc6 Kf7 33.Kf2?? Nd3–+ 34.Kg3 Nc1 35.Nd4 Nd3 36.Nf5 Nde5 37.f4 Nd7 38.Kf3 d5 39.g4 Nf6 40.Nd4 Nd6 41.g5 Nfe4 42.f5 Ng5 43.Kg4 Nge4 44.Ne6 Nf6 45.Kf4 d4 46.Nd4 Nfe8 47.Ke5 Rd8 48.Nc6 Rd7 49.Ra1 Nc4 50.Kf4 Ncd6 51.Ke5 Nb5 52.Rb1 Nbd6 53.Nd4 (53.Nd4 Nc4 54.Kf4 Rd4 55.Kf3–+). bratek55 (1625) – urukre, kurnik, 2012.

5.e4 Qd7

6.Be2 b6 7.0-0 Bb7 8.c4 a6 9.Nc3 Nc6 10.a3 0-0-0 11.Qb3 Nd4?? (better is 11...e5+/-) 12.Nd4+– Ng4 13.Nd5 Bd5 (13...e5 14.Nc2+–) 14.cd5 c5 (14...Rdg8+–) 15.dc6 Qc7 16.Bg4 Kb8 17.Bd7 e5 (17...Bd4 18.Bd4 e5 19.Bb2+–) 18.Ne2 (better is 18.Qf7!? ed4 19.Qg7 Rhg8 20.Qd4 Ka8+–) 18...h6 19.d4 (better is 19.Qf7!? Rhg8+–) 19...f5 20.de5 Be5 21.Be5 de5 22.a4 fe4 23.Ng3 h5 24.Ne4 g5 25.a5 b5 26.Nc5 Ka7 27.Ne6 Qd6 28.Qe3 Kb8 29.Qb6 Ka8 30.Qa6 Kb8 31.Qb7 1–0. bratek55 (1610) – neron35, kurnik, 2011.

6.Be2 b6 7.0-0 Bb7 8.c4 a6 9.Nc3 Nc6 10.a3 h6 11.Qb3 g5 12.Nd5 g4? (12...e5 13.Rac1+=) 13.Nd4 (13.Nh4 Ne5 14.Nf5 Bd5 15.Ng7 Kf8+–) 13...h5? (better is 13...Nd5 14.Nc6 Nf4 15.Bg7 Ne2 16.Kh1 Rh7-/+) 14.Nf5+– Rg8? 15.g3 e6?? 16.Nf6 Bf6+= 17.Bf6 ef5 18.ef5 Qf5 19.Qc3 Rg6 20.Bh4 Ne5 21.Rae1 Nf3?? 22.Bf3+– Kd7 23.Bb7 Rb8 24.Be4 Qe6 25.Bg6 Qg6 26.Qd4 Re8 27.Re8 (27.Re8 f6 28.Rfe1 Qe8 29.Re8 Ke8 30.Qf6 Kd7 31.Qf5 Kc6 32.Qc8 b5 33.Bd8 bc4 34.dc4 d5 35.Qc7) 1–0. bratek55 (1605) – neron35, kurnik, 2011.

6.Be2 b6 7.0-0 Bb7 8.c4 Nc6 9.b5 Na5 10.Nc3 0-0-0 11.Qc2 Rhg8 12.Nd5 Nd5 13.cd5 Qb5 14.Bg7 Rg7 15.Rfc1 Qd7 16.Qc3 Rgg8 17.a4 Kb8 18.d4 Rc8 19.Bb5 c6 20.dc6 Bc6 21.Bc6 Rc6 22.Qb4 Rc1 23.Rc1 Rc8 24.Rb1 Ka8 25.h3 Rc4 26.Qa3 Ra4 27.Qe3 Nc4 28.Qh6 a6 29.Qh7 e6 30.Ng5 b5 31.Ne6?? Qe6–+ 32.Qg8 Ka7 33.Qd8 Nd2 34.Rc1?? Rc4–+ 35.Ra1 Qc8 36.Qd6 Rc1 37.Rc1 Qc1 38.Kh2 Nf1 39.Kg1 Nd2 40.Kh2 Qc4 41.Qd7 Kb6 42.Qd6 Qc6 43.Qd8 Qc7 44.Qc7 Kc7 45.g4 Ne4 46.h4 Nf2 47.Kg3 Ne4 48.Kf4 Nf2 49.h5?? gh5 50.gh5 Nd3 51.Kg5?? Nf2 (51...Nf2 52.h6 Ne4 53.Kf5 Nd6 54.Ke5 f5+–) 0–1. bratek55 (1630) – neron35, kurnik, 2011.

6.Be2 b6 7.0-0 Bb7 8.Nbd2 Nc6 9.b5 Nb8 10.a4 c6 11.c4 cb5 12.ab5 0-0 13.Qb3 Qd8 14.Rfd1 Nbd7 15.Nf1 Ng4 16.Bg7 Kg7 17.Nd4 Nc5 18.Qc2 Ne5 19.f4 Ned7 20.Bf3 Qc8 21.Ra3 Kg8 22.Rda1 e5 23.fe5 Ne5 24.Ra7 Ra7 25.Ra7 Ncd3 26.Ne3 Nc5 27.Nd5 Bd5 28.cd5 Qb8 29.Qa2 Nf3 30.gf3 Qd8 31.Qg2 Qf6 32.Nc6 Nd3 33.h3 Ne1 34.Kf2?? Nd3 35.Ke3= Nf4 36.Qh2 Nh5 37.e5= Qg5 38.f4 Qg3?? 39.Qg3+– Ng3 40.ed6 Nf5+/- 41.Kf3 Nd6 42.Ne7 Kg7 43.Rd7 Nb5 44.f5 Nd4 45.Ke4 Nf5 46.Nf5 gf5 47.Kf5 Re8 48.Rb7 Re3 49.d6 Rf3 (49...Rf3 50.Ke4 Rf2+/-) 0–1. bratek55 (1620) – neron35, kurnik, 2011.

5.e4 Bd7

6.Be2 Nc6 7.b5 Na5 8.0-0 Bb5 9.c4 Bd7 10.e5 de5 11.Ne5 Be6 (better is 11...0-0!?+=) 12.Qa4= c6 13.Bc3 b6 14.Ba5 ba5 15.Qc6 Kf8 16.Bf3?? (better is 16.Qb5+=) 16...Rc8–+ 17.Qa6 Qd4 18.Qc8?? (18.Bb7 Rc7 19.Na3 Qe5 20.Rfe1–+) 18...Bc8 19.Nc6 (19.Na3 Qe5 20.Rab1 Ng4 21.Bg4 Bg4–+) 19...Qa1 20.Nd2 Qa2 21.Ne4 Ne4 22.Be4 Bf6 23.g3 Kg7 24.Na7 Ba6 25.Nc6 Bb7 26.h4 Rc8 27.Ne7 Be7 28.Bb7 Rd8 29.Be4 a4 30.h5 gh5 31.Bd5 Rd5 32.cd5 Qd5 33.Rd1 a3 34.Kh2 a2 35.Ra1 Qd4 36.Rd1 a1R (36...a1R 37.Ra1 Qf2 38.Kh1 h4 39.gh4 Bd6 40.Rg1 Kf6 41.Rg3 Qg3 42.d4 Qh2#; 36...Qf2 37.Kh1 Qg3 38.Rg1 a1R 39.Ra1 Qh3 40.Kg1 Bc5 41.d4 Bd4#) 0–1. bratek55 (1685) – riza25, kurnik, 2012.

6.Be2 Qc8 7.0-0 Nc6 8.b5 Nb8 9.Nbd2 (better is 9.c4!?+=) 9...Bb5+= 10.c4 Bd7 11.Qb3 h5 12.Rac1 b6 13.e5 de5 14.Ne5 Ng4?? (better is 14...c5=) 15.Nd7+– Qd7 16.Bg7 Rg8 17.Bb2 Qd6 18.Bg4 hg4 19.Ne4 Qd7 20.Rfe1 Kd8 21.c5 f6 22.Qg8 Qe8 23.Qe8 (23.Qe8 Ke8 24.Nf6 Kd8 25.Ng4+–) 1–0. bratek55 (1690) – riza25, kurnik, 2012.

5.e4 e5

6.c4 a5 7.b5 c5 8.Nc3 0-0 9.Be2 Be6 10.Ng5 Nbd7 11.Ne6 fe6 12.0-0 Nb6 13.Bc1 a4 14.Bg5 h6 15.Bh4 Qe8 16.Rc1 g5 17.Bg3 Qg6 18.Rc2 Kf7 19.f3 Ke7 20.Bf2 Nh5 21.g3 Nf6 22.Be3 Nfd7 23.Nb1 Bf6 24.Rc3 h5 25.Ra3 d5 26.ed5 ed5 27.cd5 Nd5 28.Bf2 b6 29.Ra4 Ra4 30.Qa4+/- Rg8 31.Qe4 Kd6 32.Bd1 Bd8 33.Nd2 Qe4 34.Ne4 Ke6 35.Bb3 Be7 36.Be3 g4?? 37.f4 ef4 38.Bf4 N7f6 39.Re1 Rd8 ½–½. Woschkat,Karl_Heinz – Husslein, corr SOK–87–16, 1987.

6.Nbd2 0-0 7.c4 (7.Be2 a5 8.b5 Nbd7+=) 7...Nbd7 (7...a5 8.b5+=) 8.a3 (8.Be2 Nh5+=) 8...b6 (8...Nh5 9.g3=) 9.b5 (9.g3 Bb7=) 9...Bb7 (9...Nc5 10.a4-/+) 10.a4 (10.Be2 Nc5+=) 10...a5 (10...a6 11.Nb3-/+) 11.Be2+= Nc5 (11...Qe7 12.0-0+=) 12.0-0 Nfd7 (12...Qe7 13.Nb1+=) 13.Qc2 f5 14.ef5 Rf5 15.d4 (15.g3 Qe7+=) 15...ed4 16.Nd4 Rf7 (16...Rf4 17.N2f3+=) 17.Bf3+= Bf3 18.N2f3 Qf6 19.Ra3 Re8 20.Bc1 h6 21.Be3 Re4 22.Nc6 Qf5 23.Nfd4 Qf6 24.Rd1 Ne5 25.Ne5 Re5 26.Nf3 Rf5 27.Bd4+= Qd8 28.Bc5 Rc5 29.Qg6 Rc4 30.Ne5+/- Rf6 31.Qg3 Rcf4? 32.Ng4+– Qf8? 33.Nf6 Rf6 34.Rf3 Rf3 35.Qf3 Qe7 36.Qe3 Qf7 37.Re1 Be5 38.Qh6 Qc4 39.Qg5 Kf7 40.Qh5 Kf6 41.Qd1 d5 42.Qf3 Kg6 43.Qe2 (43.Qe2 Qe2 44.Re2+–) 1–0. Becker,Andreas – Seidler,Ottmar, Baden–ch AT2, 2003.

6.Be2 0-0+=.

6.Be2 a5 7.b5 c6 8.a4 0-0 9.0-0 Bd7 10.c4 c5 11.Nc3 b6 12.Nd5 Nd5 13.cd5 f5 14.Bc1 f4 15.g3 Bh3 16.Re1 Bh6 17.Nh4 Nd7 18.Bf1 Bf1 19.Rf1 Qe7 20.Qg4 Rf7 21.Kh1 Raf8 22.f3 Nf6 23.Qh3 Nh5 24.g4 Bg5 25.Ng2 Ng7 26.Bd2 h5 27.Be1 hg4 28.Qg4 Qf6 29.h4 Bh6= 30.Kh2 Kh7 31.Rh1 Nh5 32.Kg1 Rg8 33.Bf2 Rfg7 34.Kf1 Ng3 35.Bg3+/- fg3 36.Qg3 Rf8 37.Ke2 Bf4 38.Qg4 Bh6 39.Raf1 g5 40.h5 Qf7 41.Ne3 Qf4? 42.Qf4 gf4 43.Nf5 Rg2 44.Rf2 Rf2 45.Kf2 Rd8 46.Rg1 Rd7 47.Rg6 Bf8 48.Kg2 Rd8 49.Kh3 Rd7 50.Kh4 Rd8 51.Kg5 Rd7 52.Re6 Rd8 53.h6 Rd7 54.Ng7! Bg7 55.hg7 Kg7 56.Rg6 Kh7 (56...Kh7 57.Kf6 Rb7+–). bratek55 (1605) – qanx (1680), kurnik, 2011.

6.Be2 c6 7.0-0 0-0 8.c4 a5 9.a3 Nbd7 10.Nc3 Ne8 11.d4 Qc7 12.de5 de5 13.Qb3 h6 14.Rfd1 Kh7 15.c5 b5 16.h3 a4 17.Qc2 Nb8 18.Rd2 Be6 19.Rad1 (19.Rd3 Bc4 20.Re3 Bb3+=) 19...Rg8 (19...Bb3 20.Qd3 Bd1 21.Rd1+=) 20.g4 (20.Qd3 Nd7+=) 20...Bf8?? (20...Bb3 21.Qd3 Bd1 22.Rd1-/+) 21.Kg2 Be7?? 22.Nh2?? Nd7?? 23.f3 Nf8 24.Bd3?? Ng7 25.Ne2 g5?? 26.Ng3?? Ng6 27.Nf5? Nf4 28.Kg3 Rgd8 29.Bf1? Rd2?? 30.Rd2+= Rd8 31.Rd8 Bd8= 32.Qd2 Bf5 33.gf5 Ne8 34.Ng4 h5 35.Ne5 Bf6 36.Bd4?? Be5–+ 37.Be5 Qe5 38.Kf2 Nf6 39.Qd6? Qd6 40.cd6 Nd7 41.h4 gh4?? 42.Ke3+= Ng6? 43.fg6+– Kg6 44.f4 c5 45.Bb5 cb4 46.ab4 a3 47.Bc4 Kf6 0–1. bratek55 – graczmarny (1700), kurnik, 2011.

6.Be2 Be6 7.0-0 Nc6 8.b5 Ne7 9.c4 0-0 10.Nc3 Nh5 11.Ng5 Nf4 12.Ne6 fe6 13.g3 Nh3 14.Kg2 Ng5 15.h4 Nf7 16.Bg4 Qd7 17.f4 Nh6 18.Bh3 Rf7 19.Nd5 Raf8 20.Ne7 (better is 20.Qd2!?+=) 20...Qe7+= 21.f5 ef5 22.ef5 gf5 23.Qb3 c6 24.a4 Qe6 25.Rae1 Kh8 26.d4 e4 27.d5 cd5 28.Bg7? Rg7–+ 29.cd5 Qe5 30.Kh2 Rfg8 31.Rg1 f4 32.Rc1?? fg3 33.Kg2 e3 34.Qc3 Qe4 35.Kf1 Qf3 36.Ke1 Qf2 37.Kd1 e2 38.Kc2 e1Q 39.Kb3 Qc3 40.Kc3 g2 41.a5 Qe3 42.Kc2 Qh3 43.Rce1 Qf3 44.b6 Qf2 (44...Qf2 45.Kd1 Rg3 46.Re2 Rd3 47.Kc1 Qg1 48.Kb2 Qd4 49.Ka2 Qa4 50.Kb2 Qb3 51.Kc1 Rd1; 44...Rg3 45.Re4 Rc8 46.Kb1 Qe4 47.Ka2 Qc2 48.Ka1 Ra3) 0–1. bratek55 (1705) – evgeni, kurnik, 2011.

6.Be2 Bg4 7.0-0 Nbd7 8.c4 0-0 9.Nc3 c6 10.a4 Bf3 11.Bf3 (worse is 11.gf3 Nh5+=) 11...c5 12.b5 b6 13.Nd5 Nd5 14.cd5 f5 15.Qd2 f4 16.a5 Qc7 17.ab6 ab6 18.Bc3 Qb7 19.h3 Ra1 20.Ra1 Ra8 21.Qd1 Nf6 22.Qb1 h5 23.Kf1 Kh7 24.Ke2 g5 25.Kd2 g4 26.hg4 hg4 27.Be2 Kg6 28.Ra8 Qa8 29.Qa1 Qa1 30.Ba1 Bh6 31.f3 g3 32.Bc3 Bf8 33.Kc2 Be7 34.Kb3 Bd8 35.Bf1 Nh7 36.Ka4 Kf6 37.Kb3 Nf8 38.Kc2 Ng6 39.Kb3 Nh4 40.Kc4 Ke7 41.Be1 Ng6 42.Be2 Kd7 43.Kb3 Nf8 44.Kc4 Ng6 45.Bd2 Ne7 46.Bf1 Nc8 47.Bc1 Na7 48.Bb2 Nc8 49.Bc3 Ne7 50.Bd2 Ng8 51.Kb3 Bc7 52.Ka4 Bd8 53.Bc3 Bc7 54.Kb3 Ke7 55.Kc2 Bb8 56.Kd2 Bc7 57.Ke2 Kf6 58.Kd2 Kg6 59.Ke2 Ne7 60.Be1 Ng8 61.Kd2 Nf6 62.Kc3 Kf7 63.Kc4 Kg6 64.Bd2 Kf7 65.Be1 Kg6 66.Bc3 Kf7 67.Bd2 Kg6 68.Be1 Kf7 69.Bd2 Kg6 70.Bc3 Kf7 71.Bb2 Kg6 72.Ba3 Kf7 73.Bc1 Kg6 74.Bd2 Kf7 75.Be1 ½–½. bratek55 (1650) – nike40, kurnik, 2011.

6.Be2 Bg4 7.0-0 Nbd7 8.c4 0-0 9.Nc3 Bf3 10.Bf3 (worse is 10.gf3 Nh5+=) 10...c5 11.a3 a5 12.b5 Nb6 13.a4 Nfd7 14.Nd5 Nd5 15.cd5 b6 16.g3 f5 17.Qc2 Nf6 18.Bg2 h6 19.f4 Ng4 20.Rae1 Qe7? (better is 20...ef4 21.Bg7 Kg7 22.Rf4 Qg5+=) 21.ef5+– gf5 22.fe5 Ne5 23.d4 cd4 24.Bd4 Rab8 25.Qb2 Qc7 26.Rc1 Qe7 27.Rfe1 f4 28.gf4 Rf4 29.Qd2?? Rg4?? 30.Kh1 Rg5 31.Qe3+/- Qd7 32.Bh3 Qf7?? 33.Be6+– Qe6 34.de6 Ng4 35.Qc3 Nf2 36.Bf2 Bc3 37.Rc3 Re8 38.Rc6 Re5 39.Re5 de5 40.Rb6 e4 41.Be3 Kg7 42.Kg2 Kf6 43.Rc6 Kf5 44.h3 h5 45.b6 Rb8 46.Kg3 Rb7 47.h4 Rg7 48.Kf2 Rb7 49.Rc7 Rb8 50.e7 Kf6 51.Kg3 Kf7 52.Kf4 Rg8 53.Ke4 (53.Ke4 Rg4 54.Kd5 Rb4 55.Bc5 Rb1 56.b7 Rd1 57.Kc6 Rb1 58.Rc8 Rb6 59.Kb6 Ke6 60.e8Q Kf5 61.Qh5 Ke4 62.Re8 Kd3 63.Qe2 Kc3 64.Re3) 1–0. bratek55 (1655) – nike40, kurnik, 2011.

6.Be2 Bg4 7.Nbd2 Nc6 8.b5 Ne7 9.0-0 0-0 10.h3 Bd7 11.a4 Nh5 12.Nh2 Nf4 13.Nc4 f5 14.Bf3 fe4 15.Be4 Qc8 16.Bd5 Kh8 17.Bf3 Nh3 18.gh3 Bh3 19.Bg2 Bg2 20.Kg2 Nf5 21.Qf3 Nh4 22.Kg3 Nf3 23.Nf3 Qf5 24.Nh4 Qf4 25.Kg2 Qh4 26.Rh1 Qg5 27.Kf1 Rf4 28.Ke2 Bh6 29.Ne3 Raf8 30.Raf1 Rf3 31.Nd1 Qd2 0–1. Adjailton (1825) – lsmkenpo (1740), lichess.org, 2020.

5.e4 e6

6.Be2 b6 7.0-0 Bb7 8.c4 Nbd7 9.Nc3 a6 10.Qb3 Qe7 11.Rfd1 h6 12.Nd4 e5 13.Nc2 Nh5 (13...0-0 14.Ne3=) 14.g3 (better is 14.Bh5!? gh5 15.Ne3+/-) 14...Nhf6= 15.Nd5 0-0-0?? (better is 15...Nd5 16.ed5 0-0=) 16.Ne7+– Kb8 17.Nd5 h5 18.h4 Nd5 19.cd5 f5 20.Ne3 f4 21.gf4 Rhg8 22.fe5 Ne5 23.Be5 Be5 24.Rac1 g5 25.Nf5 gh4 26.Kh1 Bf4 27.Rg1 Bc1 28.Rc1 Rg5 29.Rg1 Rdg8 30.Rg5 Rg5 31.Qc3 Bc8 32.Qh8 Kb7 33.Ne7 Bh3 34.Nc6 Bg2 35.Kh2 h3 36.Qb8 1–0. bratek55 – neron35, kurnik, 2011.

6.Be2 c6 7.0-0 0-0 8.c4 d5 9.e5 Ne8 10.d4 Nd7 11.Nbd2 f5 12.Qb3 b6 13.cd5 cd5 14.Rac1 Bb7 15.Rc2 Bh6 16.a4 Bd2 17.Nd2 Qe7 18.f4 Ng7 19.Rfc1 Rfc8 20.g3 Rc2 21.Rc2 Rc8 22.Rc8 Bc8 23.Qc3 Qd8 24.Bb5 a6 25.Be2 Nb8 26.Kf2 Ne8 27.b5 Qc7 28.Qc7 Nc7 29.Ba3 ab5 30.ab5 Bd7? 31.Bd6+– Nb5 32.Bb8 Nd4 33.Bd1 Nc6 34.Bd6 Na5 35.Ke3 b5 36.Kd4 h6 37.Bb4 Nc6 38.Kc5 Nb4 39.Kb4 g5 40.Be2 Kf7 41.Bb5 Bb5 42.Kb5 gf4 43.gf4 Kg6 44.Kc6 Kh5 45.Kd6 Kg4 46.Ke6 Kf4 47.Kf6 Ke3 48.Nb3 d4 49.e6 (49.e6 h5 50.e7+–) 1–0. bratek55 (1650) – marydark, kurnik, 2011.

4.d3 e6

5.c4 d6 6.e3 b6 7.Be2 Bb7 8.0-0 Nbd7 9.Nbd2 0-0 10.a3 c5 11.b5 (11.Qc2 Qe7=) 11...a6= 12.a4 a5 (12...Qc7 13.Qc2=) 13.Qc2 d5 14.Rfd1 Rc8 15.Nf1 Qe7 16.Ne5 Ne5 17.Be5 Rfd8 18.Qb2 Ne8 19.Bf3 f6 20.Bc3 e5 Black intends d4 21.Ng3 (better 21.cd5!? Bd5 22.Nd2=) 21...d4-/+ 22.ed4 ed4 (22...Bf3 23.gf3 cd4 24.Bd2-/+) 23.Bd2=+ Bf3 24.gf3 Nd6 25.Re1 Qb7 26.Ne4 f5 (26...Nf7!? 27.Bf4 Re8-/+) 27.Nd6=+ Rd6 28.Kg2 (28.Bf4 Rf6=+) 28...Rdd8 (28...g5 29.Qc2-/+) 29.Re6 Re8 30.Rae1 Re6 31.Re6 Kf7 32.Re1 Re8 33.Qc1 Be5 34.Bg5 Qc7 35.h3 Re6 36.f4 (36.Qd2 Qd7-/+) 36...Bf6 (36...Bf4 37.Bf4 Re1 38.Bc7 Rc1 39.Bb6-/+) 37.Re6 Ke6 38.Qe1 Kf7 39.Bf6 Kf6 40.Qe8 Qe7?? (40...Kg7!?=) 41.Qh8?? (better 41.Qb8 Kg7 42.Qb6+-) 41...Qg7?? (better 41...Ke6+=) 42.Qd8+- Qe7 43.Qb6 Kg7 (43...Kf7+-) 44.Qc6 Qe2 45.b6 Qd3 46.b7 Qc4 (46...Qe4 47.Qe4 fe4+-) 47.b8Q (47.b8Q Qf7 48.Qc5 Kh6 49.Qd8 Qd5 50.Qcd5 d3 51.Qf5 gf5 52.Qg5) 1-0. diotarolo (2080) - ribarisah (2000), Rated Bullet game, lichess.org, 2014.

5.Nbd2 0-0 6.g3 b6 7.Bg2 Bb7 8.0-0 Nc6 9.a3 Ng4 10.Qc1 Bb2 11.Qb2 Qf6 12.Qb3 Rab8 13.Ne4 Qg7 14.a4 Nd4 15.Nd4 Qd4 16.c3 Qg7 17.a5 Nf6 18.Nd2 Bg2 19.Kg2 Ng4 20.Nf3 b5 21.d4 f5 22.h3 Nf6 23.Ne5 Ne4 24.Rad1 f4 25.g4 h5 26.Qc2 Nd6 27.f3 hg4 28.hg4 Ne8 29.Rh1 Rf6 30.Rh2 g5?? 31.Rdh1+– d6 32.Nc6 e5 33.Rh7 Qg6 34.R1h6 Qc2–+ 35.Ne7 (35.Ne7 Kf8 36.Rh3 Qe2 37.Kg1 Qe1 38.Kh2 ed4 39.Nf5 Qf2 40.Kh1 dc3 41.Rh8 Kf7 42.R3h7 Ke6 43.Re8 Re8 44.Ng7 Ke5 45.Nf5 c2 46.Re7 Re7 47.Ng3 c1Q 48.Nf1 Qcf1#). linakip – inxhinieri, kurnik, 2012.

5.Nbd2 Qe7 6.a3 Nc6 7.g3 b6 8.Bg2 Bb7 9.0-0 0-0-0 10.Qc1 h5 11.h4 Nh7 12.Bg7 Rhg8 13.Bb2 f6 14.Ne4 g5 15.hg5 fg5 16.Nfg5! d5 17.b5 Na5 18.Nc3 Rg5 19.e4 d4 20.Ne2 Rc5 21.Bd4 Rd4 22.Nd4 e5 23.Nf5 Qf6 24.Qb2 Ng5 25.a4 h4 26.g4 h3 27.Bh1 Nf3 28.Bf3 h2 29.Kh2 a6 30.Kg2 ab5 31.ab5 Kb8 32.Rh1 c6 33.bc6 Rc6 34.Rh6 Qg5 35.Rc6 Nc6 36.Qa3 Qf4 37.Qf8 Bc8 38.Rh1 Nd4 39.Rh3 Nf5 40.gf5 Qg5 41.Rg3 Qd2 42.f6 Qc2 43.Bg4 Qc7 44.Bc8 Qc8 45.Qe7 b5 46.f7 b4 47.Rg8 b3 48.Qb4 Kc7 49.Rc8 Kc8 50.Qb3 Kd7 51.f8Q (51.f8Q Kc6 52.Qc8 Kd6 53.Qbe6#; 51.Qb7 Ke6 52.f8B Kf6 53.Qg7 Ke6 54.Qe7#) 1–0. linakip – kleoceleb2011, kurnik, 2012.

5.e4 d6 6.Be2 c6 7.0-0 b6 8.c4 Bb7 9.Nbd2 a5 10.a3 Nbd7 11.Qb3 0-0 12.h3 Qc7 13.Rac1 e5 14.d4 ed4 15.Nd4 a4 16.Qc2 c5 17.Nb5 Qc6 18.Bf3 Ne5 19.Be5 de5 20.Rfd1 Rad8 21.Nc3 cb4 22.ab4 a3 23.Nd5 Qd6 24.Qb3 Nd5 25.cd5 f5 26.Nc4 Qf6 27.ef5 Qf5 28.Ne3 Qf4 29.Qa3 e4 30.Rc4 b5? 31.Re4+– Qc7 32.Qa5 Qc3 33.Qb6 Rb8 34.Qe6 Kh8 35.Red4?? Bd4–+ 36.Ng4 Bg7 37.Re1 h5 (37...h5 38.Re3 Qc2–+ (38...hg4?! 39.Rc3 Bc3 40.Qg4+=)) 0–1. bratek55 (1605) – irbas (1605), kurnik, 2011.

5.g3 0-0 6.Bg2 c6 7.Nbd2 d6 8.a3 e5 9.c4 a6 10.Qc2 b5 11.0-0 Bb7 12.Rac1 Nbd7 13.Qb3 c5 14.cb5 ab5 15.Rfe1 Bd5 16.Qc2 Qb6 17.e4 Bc6 18.Nb3 Bh6 19.Rb1 (19.bc5 dc5 20.Ne5 Ne5 21.Be5 Bc1 22.Rc1 Nd7+=) 19...d5 20.Na5 d4 21.Nd2 Bg7 22.Qb3 Qa7 23.Nc6 Qc7 24.Na5 Rfb8 25.Rbc1 Rc8 26.Bh3 Ra5 27.ba5 Ra8 28.Qb5 Rb8 29.Qc4 Rb2 30.Nb3 Qb7 31.Nc5 Nc5 32.Qc5 Bf8 33.Qc6 Qc6 34.Rc6 Kg7 35.a6 Ba3 36.a7 Bb4 37.Ra1 Bc3 38.a8Q Rd2 39.Rf1 1–0. linakip – vaksinca, kurnik, 2012.

5.Nbd2 d5

6.g3 0-0 7.Bg2 Nbd7 8.0-0 c6 9.Qc1 b5 10.c4 bc4 11.dc4 dc4 12.Nc4 Ba6 13.Re1 Bc4 14.Qc4 Rc8 15.a3 Nb6 16.Qb3 Qc7 17.Rac1 Rb8 18.Be5 Qb7 19.Bb8 Rb8 20.Ne5 Rc8 21.Nc6 Rc6 22.Bc6 Qc7 23.b5 Qd6 24.Rcd1 Qc5 25.Rd8 Bf8 26.Qb2 Kg7 27.Rc1 Qh5 28.Bf3 Qh3 29.Qe5 Be7 30.Rd3 Nbd5 31.Bd5 ed5 32.Rd5 Ba3 33.Rf1 h5 34.Rd3 Bd6 35.Qd6 Ng4 36.Qd4 Kh6?? 37.Qf4 Kg7+– 38.Qd4 f6 39.Qd7 Kh6 40.Qg4! Qg4 41.h4 g5 42.hg5 fg5?? 43.Rd6 Kg7 44.Kg2 h4 45.Rh1 Qe2 46.Rc6 g4 47.Rh4 Qf3 48.Kf1 1–0. linakip – nelu0000, kurnik, 2012.

6.g3 Nc6 7.a3 Bd7 8.Bg2 Qe7 9.Qc1 Qd6 10.0-0 0-0-0 11.c4 d4 (11...h6 12.b5 Nb8 13.Be5+–) 12.Re1 (better is 12.b5!? Ne5 13.c5 Nf3 14.Nf3+– (14.ef3?! Qe7+/-)) 12...e5+= 13.c5 Qd5?? (better is 13...Qe7+=) 14.Nd4+– ed4 (14...e4 15.Ne4 Nd4 16.Nd6 cd6 17.Bd5 Nd5 18.cd6 Kb8 19.Qc4+–) 15.Bd5 Nd5 16.Nf3 Bg4 17.Qc4 Bf3 18.ef3 f5 19.f4 Rhe8 20.Rad1 Re1 21.Re1 a6 22.Bc1 Nc3 23.Bd2 Na4 24.b5 Nb2 25.Qb3 Nd3 26.Qd3 ab5 27.Qb5 d3 28.Rb1 Kd7 29.Qb7 Bd4 30.Qb5 Rb8 31.Qb8 Nb8 32.Rb8 Bc5 33.a4 c6 34.a5 Kc7 35.Rh8 Kb7 36.Rh7 Ka6 37.Rg7 Kb5 38.Rg6 Bb4 39.Bb4 Kb4 40.Rc6 d2 41.Rd6 Kc3 42.a6 Kc2 43.a7 d1Q 44.Rd1 Kd1 45.a8Q Ke1 46.Qe8 Kd2 47.Qe5 Kc1 48.Qf5 1–0. giorgo – kasiaanal, kurnik, 2012.

5.e4 d5

6.e5 Nfd7 7.d4 b6 8.c4 Bb7 9.Nbd2 Nc6 10.b5 Na5 11.cd5 Bd5 12.Bd3 c5 13.bc6 Nc6 14.0-0 Nb4 15.Bc4 Nb8 16.a3 N4c6 17.Bd5 Qd5 18.Qe2 Nd7 19.Qe4 Qb5 20.Rac1 Rc8 21.Nc4 Bf8 22.a4 Qd5 23.Qd5 ed5 24.Ne3 Nb4?? 25.Ba3 Rc1? 26.Rc1 Kd8 27.Bb4 Bb4 28.Nd5 Ba5 29.Ng5 Ke8 30.Rc8 1–0. bratek55 (1630) – neron35, kurnik, 2011.

6.e5 Ng4 7.d4 Bd7 8.h3 Nh6 9.Nbd2 Nf5 10.c4 0-0 11.Bd3 b6 12.0-0 c5 13.bc5 bc5 14.g4 (better is 14.dc5 Bc6 15.Qe2+/-) 14...Nd4= 15.Nd4 cd4 16.Bd4 dc4 17.Nc4 Bb5 18.Be4 (18.Nd6 Bd3 19.Qd3 Nc6=) 18...Bc6 (better is 18...Bc4!? 19.Ba8 Bf1 20.Kf1 Nd7-/+) 19.Bc6 Nc6 20.Nd6? (better is 20.Bc5!? Ne5 21.Bf8 Qf8 22.Ne5 Be5 23.Rb1+=) 20...Ne5-/+ 21.Be5? Be5–+ 22.Nb7 Qc7 23.Rb1 Rab8 24.Qb3 Rfd8! 25.Rfc1 Qd7 26.Qb5 Qd4 27.Qc4 Qd2?? 28.Qe4?? Bg7?? 29.Nc5?? Rb1 30.Rb1 Bd4 31.Nd3 a5 32.Rf1 Qa2 33.Ne5 Qb2 34.Nc6 Rd7 35.Nd4 Rd4 36.Qa8 Kg7 37.Qa5 Qb3?? 38.Qe5+– f6 39.Qd4 Qh3 40.Qf4 g5 41.Qg3 Qh6 42.Rd1 Qg6 43.Kg2 Qe4 44.Qf3 Qc6 45.Qc6 h5 46.Qe6 hg4 47.Qg4 Kg6 48.Rd6 Kg7 49.Qf5 Kf7 50.Qf6 Ke8 51.Re6 Kd7 52.Qf7 Kd8 53.Re8 1–0. bratek55 (1630) – torreadosss, kurnik, 2011.

4.d3 h5

5.Nbd2 d6 6.g3 b6 7.Bg2 Bb7 8.0-0 Nbd7 9.h4 0-0 10.Qc1 Qc8 11.e4 Bh6 12.Qd1 e5 13.Bc1 a5 14.a3 ab4 15.a4 c5 16.Nb3 Bc1 17.Qc1 Kg7 18.Qg5 Qd8 19.Qe3 Ng8 20.Ng5 Ne7 21.Nh3 Nc6 22.f4 ef4 23.Nf4 Nde5 24.Nd5 Ng4 25.Qd2 Nce5 26.Bh3 Bd5 27.ed5 f5 28.Rf4 Qf6 29.Ra2 Rfe8 30.Nc1 Ra7 31.Ne2 Rea8 32.d4 Nc4 33.Qd3 Nce3 34.dc5 bc5 35.Bg4 Ng4 36.Kg2 Ra4 37.Rb2 Ra3 38.Rb3 Rb3 39.Qb3 Ra3 40.Qc4 Ne3 41.Kf2 Nc4 42.Rc4 Qe5 43.Rf4 Qe3 44.Kg2 Qe2 45.Kh3 Ra1 46.g4 (46.g4 hg4 47.Rg4 Qf3 48.Rg3 Rh1#). linakip – gabrie2010, kurnik, 2011.

5.e4 c6

6.Be2 d6 7.0-0 b5 8.Nbd2 a5 9.a3 a4 10.c4 Bd7 11.Rc1 Qc8? (11...0-0 12.Re1+/-) 12.Nd4 (12.cb5 Qb7 13.bc6 Nc6+–) 12...Ng4 (12...Qb7 13.cb5 cb5 14.Bf3+/-) 13.Qc2 (13.cb5 Qb7 14.Nc4 c5 15.bc5 dc5+–) 13...c5 (13...0-0!?+/-) 14.bc5 dc5 15.Nb5 0-0 16.Bg7 Kg7 17.Nf3 Nc6 18.Qc3 f6 19.d4 cd4 20.Nfd4 Nd4 21.Qd4 Ne5 22.f4 Nc6 23.Qc3 Qb7 24.e5 Qb6 25.Kh1 Kf7 26.Bf3 Rac8 27.ef6 Na5 28.Bd5 e6 29.Be6 Be6+= 30.Qb4 Nc4?? 31.Qe7 Kg8 32.Qg7# 1–0. bratek55 (1690) – riza25, kurnik, 2012.

6.Be2 d6 7.0-0 Bd7 8.c4 b5 9.Nbd2 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 bc4 13.Nc4 0-0 14.e5 de5 15.Nfe5 Be6 16.Bf3 Qc7 17.Na5 Na6? (17...Bd5 18.Bd5 Nd5 19.Nec4 Bb2 20.Qb2=) 18.Qa4 (better is 18.Nac6!? Nb8 19.b5+–) 18...c5 19.b5 Nb8 20.Nac6 Nd5 21.Qa3 Nc6 22.Nc6 Qb6?? 23.Bg7 Kg7+/- 24.Qb2 f6 25.Bd5 Bd5+= 26.Ne7 Ba8 27.Rb1 Qb7 28.Nc6+= Qc7 29.g3 Bc6= 30.bc6 Qc6 31.Qb7 Qb7 32.Rb7 Rf7 33.Rb5 Rc7 34.Kg2 f5 35.Kf3 g5 36.Ke3 Kf6 37.h3 Ke5 38.f4 gf4= 39.gf4 Kd5 40.Ra5 h4 41.Ra6 Re7 42.Kf3 Kd4 43.Rd6 Kc3 44.Rd5 Kb4? 45.Rf5+– Rd7 46.Ke3 Re7 47.Re5 Rg7 48.Ke4 Rg3+/- 49.Rg5 Rh3= 50.f5 Kc3?? 51.f6+– Rd3?? 52.f7 Rd8 53.Rg8 Rd4 54.Ke5 h3 55.f8Q c4 56.Qa3 Kd2 57.Kd4 h2 58.Qe3 Kc2 59.Rg2 Kd1 60.Qd2# 1–0. bratek55 (1680) – riza25, kurnik, 2012.

5.e4 Nc6

6.b5 Na5 7.Be2 a6 8.a4 ab5 9.ab5 b6 10.0-0 Bb7 11.Nbd2 d6 12.c4 e6 13.Nd4 d5 14.e5 Nd7 15.f4 dc4 16.Nc4 Nc4 17.dc4 Nc5 18.Ra8 Qa8 19.Bf3 Ne4 (19...Bf3 20.Rf3 (20.gf3?! Qd8=) 20...Qe4 21.Nc6+=) 20.Qa1 0-0 21.Qa8 Ba8? 22.Ra1+– Rd8 23.Ra7 Bh6 24.g3 h4 25.Kg2 hg3 26.hg3 g5 27.Nc6?? Rd2+= 28.Kg1 Bc6 29.Ba3?? Rd3–+ 30.bc6 Ng3 31.Kf2+= gf4 32.Be7 Rd2 33.Ke1 Rc2 34.Ra8 Kh7 35.Bf6 Kg6 36.Bd1 Rh2 37.Rg8 Kf5 38.Bh5?? Nh5 39.Rc8 Nf6 40.ef6 Kf6 41.Rc7 Rc2 42.Kd1 Rc4 43.Ke2 Rc3 44.Rc8 f3 45.Kf1 Bf4 46.c7 Bg3 (46...Bg3 47.Rd8 Rc1 48.Rd1 Rd1#; 46...Be3 47.Rd8 Rc1 48.Rd1 Rd1#) 0–1. bratek55 (1675) – riza25, kurnik, 2012.

6.b5 Nb8 7.Be2 d6 8.0-0 Ng4?? (better is 8...a6 9.a4 Bg4+=) 9.Bg7+– Rh7 10.Bb2 e5 11.h3 Nf6 12.c4 Bd7 13.Nc3 Qc8 14.Ng5 Rh8 15.Nd5 Nd5 16.cd5 f6 17.Ne6! Be6 18.de6 Qe6 19.d4 g5 20.de5 fe5 21.Qd5 Qd5 22.ed5 Nd7 23.Rac1 b6? 24.Bd3 0-0-0 25.Bf5 g4 26.h4 g3 27.f4 Kb8 28.Bd7 Rd7 29.fe5 de5 30.Be5 Rg8 31.Rcd1 Rg4 32.Rf8 Kb7 33.Rf4 Rg6 34.Rf3 Rg4 35.Bg3 Rb4 36.Rb3 Ra4 37.Rd2 a5 38.ba6! Ka6 39.d6 c5 40.Rdb2 Rb7 41.d7! Rd7 42.Rb6 Ka7 43.Rh6 c4 44.Rh5 c3 45.Rc2 Ra3 46.Rc5 Kb6 47.R5c3 Rc3 48.Rc3 Kb5 49.Rb3 Ka4 50.Kh2 Rd2 51.Rf3 Ra2 52.h5 Rd2 53.h6 Rd7 54.Be5 Kb5 55.Bg7 Kc6 56.g4 Kc7 57.g5 Kd8 58.Rf8 Ke7 59.h7 Rd2 60.Kg3 Rd3 61.Kg4 Rd4 62.Bd4 Kf8 63.h8Q Kf7 64.Qf6 Ke8 65.Qe6 Kd8 66.Bf6 Kc7 67.g6 Kb7 68.g7 Kc7 69.g8Q Kb7 70.Qgc8 Ka7 71.Bd4# 1–0. bratek55 (1670) – riza25, kurnik, 2012.

5.e4 d6

6.Be2 c6 7.0-0 b5 8.Nbd2 a5 9.a3 a4 10.c4 Bd7 11.Qc2 Qc8 12.e5 de5 13.Ne5 0-0 14.Bf3 Ra6 15.Rfe1 Bf5 16.c5 Nfd7 17.Nd7 Qd7 18.Bg7 Kg7 19.Ne4 e6 (better is 19...Qd4!?+=) 20.Qc3 f6 21.Nd6 Bg4 22.Bg4 hg4 23.Qd4 e5 24.Qe4 Qe6 25.d4 Nd7 26.Rad1 f5 27.Qc2 e4 28.g3?? Qb3= 29.Qc1 Nf6 30.Re3 Qa2? 31.Rd2?? Qe6 32.Re1 Nd5 33.Qb2 Rh8 34.Rde2 Raa8 35.Qd2 Rh3 36.Re4? fe4–+ 37.Re4 Qf6 (37...Qf6 38.Ne8 Re8 39.Re8 Rh5-/+) 0–1. bratek55 (1690) – riza25, kurnik, 2012.

6.Be2 Bd7 7.0-0 Qc8 8.Nbd2 Ng4?? (better is 8...h4+=) 9.Bg7+– Rg8 10.Bb2 Nc6 11.b5 Na5 12.Nb3 (better is 12.Bc3!? b6 13.Ba5 ba5+–) 12...Nb3 13.ab3 e5 14.c4 f5 15.Ng5 Qd8 16.h4 f4 17.b4 b6 18.c5! bc5 19.bc5 dc5 20.Ra6 Bb5 21.Ra5 a6 22.d4 c4 23.de5 c6 24.Ra1 Qb6 25.Bg4 hg4 26.Qg4 c5 27.Rfb1 Rd8 28.Ba3 Rd2 29.Bc5! Qc6 30.Bd6 Qb6 31.Qe6 Kd8 32.Qg8 Kd7 33.Qe6 Kc6 34.Qe8 Kb7 35.Qb8 Kc6 36.Qb6 Kb6+– 37.Nf3 Rd3 38.Rd1 c3 39.Rd3 Bd3 40.e6 c2 41.e7 Bb5 42.Nd4 Be8 43.Nc2 Kc6 44.e5 Kd7 45.Ra6 Ke6+– 46.g3 fg3 47.fg3 1–0. bratek55 (1680) – riza25, kurnik, 2012.

4.d3 Nh5

5.Qc1 Bb2 6.Qb2 Nf6 7.g3 Rf8 8.Nbd2 b6 9.Bg2 Bb7 10.0-0 Nc6 11.a3 d6 12.Rfc1 Bc8 13.c4 Be6 14.Nb3 Rc8 15.b5 Nb8 16.a4 Qd7 17.a5 Bh3 18.ab6 cb6 19.Nbd4 Bg2 20.Kg2 h6 21.Qd2 g5 22.Qe3 e5 23.Nb3 Ng4 24.Qe4 f5 25.Qd5 Nf6 26.Qa8 Nc6 27.Qc8?? Qc8–+ 28.bc6 Qc6 29.Kg1 Rf7 30.Nbd2 Kf8 31.e4 fe4 32.de4 Ne4 33.Ne4 Qe4 34.Rc3 Rf3 35.Rf3 Qf3 36.Ra7 Qc6 37.Rh7 Qc4 38.Rh6 Qd4 39.Rg6 g4 40.Rf6 Ke7 41.Rf5 b5 42.Kg2 b4 43.f3 gf3 44.Rf3 Qd2 45.Kh3 Qc2 46.Kg4 (46.Kg4 Qe4 47.Kh5 Qf3 48.Kh4 b3 49.Kg5 b2 50.h4 Qg3 51.Kh5 b1Q 52.Kh6 Qbg6#). linakip – jerzyslowik, kurnik, 2011.

5.Nbd2 Bb2 6.Rb1 Bg7 7.c3 a6 8.Qc2 b5 9.g3 d6 10.Bg2 Bb7 11.0-0 Nd7 12.c4 Rc8 13.c5 dc5 14.bc5 0-0 15.c6 Ba8 16.cd7 Qd7 17.Nb3 c5! 18.Nc5 Qf5 19.Rbc1 Bh6 20.e3 Bf3 21.Bf3 Qf3 22.d4 Rfd8 23.Qd1 Qd5 24.Qe2 Nf6 25.a4 ba4 26.Qa6 Ne4 27.Qb5 Nc5 28.Rc5 Rc5 29.Qc5 Qc5 30.dc5 Rc8 31.Ra1 Rc5 32.Ra4 Bf8 33.Kg2 e6 34.Kf3 Kg7 35.h4 Rc2 36.g4 Bd6 37.Rd4 Bh2 38.Kg2 Be5 39.Re4 Bc3 40.Rc4 Rc1 41.Kf3 Bd2 42.Ke2 Rc4 43.Kd2 Rg4 44.Ke2 Rh4 45.Kf3 f5 46.Kg3 Rg4 47.Kf3 h5 48.Ke2 h4 49.f3 Rg3 50.Kf2 g5 51.f4 gf4 52.ef4 1–0. linakip – zaliko, kurnik, 2011.

5.Bg7 Ng7

6.Nbd2 Nc6 7.Qb1 e6 8.Qb2 Rg8 9.g3 Qe7 10.a3 b6 11.Bg2 Bb7 12.0-0 a5 13.b5 Na7 14.a4 0-0-0 15.c4 Kb8 16.Nb3 d5 17.Rac1 dc4 18.dc4 Nc8 19.Nbd4 Nd6? (19...Qc5 20.Rfd1 Nf5 21.Nf5 Rd1 22.Rd1 Qf5 23.Ne5+=) 20.Nc6?? (better is 20.Ne5 Ka8 21.Ndc6+–) 20...Bc6= 21.bc6 Ngf5?? 22.Ne5 Nd4? 23.Nd7 Ka7 24.e3 N4f5?! 25.c5 Nc4 26.Qa2 Nce3 27.fe3 Ne3 28.Rf3 Nf5 29.cb6 cb6 30.Rb1 Rd7 31.cd7 Qd7 32.Qb3 Qd4 33.Kh1 Rc8 34.Rd3 Qf2 35.Rf1 Qc5 36.Rfd1 Rc7 37.Rb1 Rb7 38.Rd2 (38.Rd2 Nd4 39.Qd1+–) 1–0. giorgo – ikaivan, kurnik, 2012.

6.e4 0-0 7.Be2 b6 8.0-0 Bb7 9.c4 a5 10.b5 e6 11.a4 d6 12.Nbd2 Nd7 13.Rc1 Nc5 14.Nd4 e5 15.N4b3 Nge6 16.Nc5 Nc5 17.Nb3 Ne6 (17...Na4!? 18.f4 f5-/+) 18.g3 Nd4 19.Nd4 ed4 20.f4 Re8 21.Bf3 Rb8 22.Qd2 c5 23.Rce1 Qf6 24.Qg2 Bc8 25.h4 h5 26.Re2 Bg4 27.Bg4 hg4 28.Rfe1 Qh8 29.e5 de5 30.Re5 Re5 31.Re5 f5 32.Qd5+– Kg7 33.Qd7 Kh6 34.Qe7 Qf8?? 35.Qg5 Kg7 36.h5 Rb7 37.Qg6 Kh8 38.Rf5 Qg7 39.Qc6 Qe7 40.Re5 Qh7 41.Qc8 Qg8 42.Qb7 (42.Qb7 Qf7 43.Qa8 (43.Qf7?!) 43...Kh7 44.Qe4 Kg7 45.h6 Kh8 46.Re8 Qe8 47.Qe8 Kh7 48.f5 Kh6 49.Qg6) 1–0. bratek55 (1620) – burza56, kurnik, 2011.

6.e4 0-0 7.Be2 b6 8.0-0 Bb7 9.c4 e6 10.Nc3 d6 11.Qb3 Nd7 12.Rfd1 Qe7 13.a4 a5 14.b5 Nc5 15.Qc2 Rad8 16.Nd2 d5 17.ed5 ed5 18.Bf3 c6? (better is 18...dc4!? 19.dc4 Rd2 20.Qd2 Bf3 21.gf3 Nb3+=) 19.bc6+/- Bc6 20.Re1 Qg5 21.cd5 Ba8 22.Nce4 Qh4 23.Nc5 bc5 24.Qc5 Nf5 25.g3 Qh6 26.Ne4 Qg7 27.Rac1 Rd5? 28.Qc3?? Re5 29.Kg2 Re6 30.Qg7 Kg7 31.Ng5 Rd6 32.Ba8 Ra8 33.Red1 Rad8 34.Rc3 Rd4 35.Ra3 Ne7 36.Nf3 R4d5 37.d4 Nc6 38.Rad3 Nb4 39.Rc3 h6 40.h4 f6 41.Rc7 Kg8 42.Ra7 R8d7 43.Rd7 Rd7 44.g4 Kf7 45.g5 hg5 46.hg5 f5?? 47.Ne5+– Ke6 48.Nd7 Kd7 49.Kf3 Ke6 50.Kf4 Nd5 51.Kf3 Nc3?? 52.Rd3 Na4 53.Ra3 Nb2 54.Ra5 Nc4 55.Rc5 Nd2 (55...Nd2 56.Ke3 Nf1 57.Ke2 Nh2+–). bratek55 (1640) – akademik44 (1615), kurnik, 2011.

6.e4 b6 7.Be2 Bb7 8.0-0 d5 9.e5 e6 10.d4 Nd7 11.c4 c5 12.bc5 bc5 13.cd5 Bd5 14.Nc3 0-0 15.Nd5 ed5 16.dc5 Nc5 17.Qd4 Nce6 18.Qd2 Nf5 19.Rfd1 Ne7 20.Rac1 Rc8 21.Qe3 Rc1 22.Rc1 Qa5 23.Qd2 Qd2 24.Nd2 Rb8 25.Nb3 Nf4 26.Bf1 Kg7 27.g3 Ne6= 28.f4 Rb4 29.Bh3 h5 30.Rd1 Ra4 31.Rd2 Nf5 32.Bf5 gf5 33.Kf2 Kg6 34.Ke3 d4 35.Kd3 a5 36.Rc2 f6?? 37.ef6?? Kf6= 38.Re2 Ra3 39.Kc2?? Ra2–+ 40.Kd3 Ra3 41.Kc4 d3 42.Rd2 a4 43.Nc1 Ra1 44.Nd3 a3 45.Kb3 Nd4 46.Kc3 Nf3 47.Rf2 a2 48.Kb2? Rh1?? 49.Ka2+= Rh2 50.Rh2 Nh2 51.Kb3? Nf1–+ 52.g4? fg4 53.Kc3 (53.Kc3 h4 54.Nf2–+). bratek55 (1620) – burza56, kurnik, 2011.

6.e4 b6 7.Be2 Bb7 8.0-0 d6 9.c4 Nd7 10.Nc3 0-0 11.Nd5 c6 12.Ne3 e6 13.Qb3 Nf6 14.Rac1 d5 15.cd5 ed5 16.e5 Nd7 17.d4 a5 18.a3 a4 19.Qc2 b5 20.g3 Nb6 21.h4 Qd7 22.Kg2 Nc4 23.Bc4 dc4 24.Ng5 h6 25.Nf3 Bc8 26.Ng1 Nf5 27.Nf5 Qf5 28.Qf5 Bf5 29.Rfd1 Bd3 30.Rd3 cd3 31.Nf3 f6 32.Rd1 fe5 33.Ne5 Rf6 34.Rd3 Rd8 35.Nf3 Rfd6 36.Rc3 Kg7 37.g4 Rd5 38.Kg3 R8d6= 39.Kf4 Rf6 40.Kg3 h5 41.g5 Rff5?? 42.Rc6+/- Rd7 43.Rc5 Rf3? 44.Kf3+– Rd4 45.Rb5 Rh4 46.Rb7 Kf8 47.b5 Rh3 48.Ke4 Ra3 49.b6 Rb3 50.Rb8 Ke7 51.b7 a3 52.Rf8?? Rb7 53.Ra8 Rb2 54.Ra3 Rf2 55.Ra6 Kf7 56.Ra7 Kf8 57.Ke5 Rf5 58.Ke6 Rg5 59.Kf6= Ke8?? 60.Kg5+– 1–0. bratek55 (1610) – burza56, kurnik, 2011.

6.e4 b6 7.Be2 Bb7 8.0-0 e6 9.c4 Qf6 10.Nbd2 Nc6 11.b5 Nd4 12.Nd4 Qd4 13.Nb3 Qf6 14.c5 Qe7 15.Rc1 0-0 16.c6 dc6 17.bc6 Ba6 18.f4 Rfd8 19.Qc2 f5 20.e5 Qb4 21.Qc3 Qa3 22.Qc2 Bb5 23.d4 Be2 24.Qe2 a5 25.Qd2 Rd5 26.Rc2 Rad8 27.Qc1 Qe7 28.g3 a4 29.Nd2 Rd4 30.Nf3 R4d5 31.Rc4 Rd3 32.Ra4= Nh5 33.Ra3?? R3d5 34.Ra7= Qc5?? 35.Kg2?? Qe7+= 36.a4 Rc5 37.Qa1 Rc6 38.a5 ba5 39.Ra5 Rd5?? 40.Ra8 Kg7+= 41.Rf2 Rdc5 42.Ng5 Rc2+= 43.Qf1 Rf2 44.Qf2 h6 45.Nf3 Qc5 46.Qc5 Rc5 0–1. bratek55 – neron35, kurnik, 2011.

6.e4 d5 7.e5 e6 8.d4 Qe7 9.a3 b6 10.c4 Bb7 11.cd5 Bd5 12.Bb5 c6 13.Bd3 Nd7 14.0-0 a6 15.Nc3 0-0 16.Nd5 cd5 17.Qe2 b5 18.Rac1 Nb6 19.Rc5 Nc4 20.Bc4 bc4 21.g4 h5 22.h3 hg4 23.hg4 Rac8 24.Qc2 Rc5 25.bc5 Ne8 26.Rb1 Kg7 27.Qa4 f6? 28.Qa6+– fe5? 29.de5 Qc5?? 30.Qe6?? Qa3?? 31.Ng5 Qd3?? 32.Rb7+– Kh6 33.Nf7 Rf7 34.Qf7 Qd1 35.Kg2 Qg4= 36.Kh2 Qh4 37.Kg1 Qg4 38.Kf1 Qd1 39.Kg2 Qg4 40.Kh2 Qh4 41.Kg1 Qg4 42.Kf1 Qd1 43.Kg2 Qg4 ½–½. bratek55 – zaba78, kurnik, 2011.

6.e4 e5 7.Ne5 0-0 8.Be2 d6 9.Nf3 f5 10.Nbd2 f4 11.0-0 g5 12.h3 g4 13.hg4 Bg4 14.Nd4 Bd7 15.Bg4 Nc6 16.Nc6 bc6 17.c4 Bg4 18.Qg4 Kh8 19.Nf3 Qf6 20.Qg5 Qf7 21.Rae1 Rg8 22.Qh4 Raf8 23.Ng5 Qg6+= 24.Nf3 Ne6 25.Qh3+/- Ng5 26.Ng5 Qg5 27.f3 Rf6 28.Re2?? Rh6–+ 29.Qf5 Qh4 30.Rb2 Qh2 31.Kf2 Qg2 32.Ke1 Qb2 33.Qf4 Qb1 34.Ke2 Rg2 35.Ke3 Qf1 36.Qf8 Rg8 37.Qh6 Qc1 38.Kd4 Qh6 39.b5 c5 40.Kd5 Rg5 41.Kc6 Qg7 42.f4–+ Rh5 43.f5 Qe7 44.a4 Qe8 45.Kb7 Qb8! (45...Qb8 46.Kb8 Rg5 47.Kc7 h5–+) 0–1. bratek55 (1605) – pf78, kurnik, 2012.

4.d4 0-0

5.c4 d6 6.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4).

5.Nbd2 a5 6.b5+= b6 7.e3 Bb7 8.Bd3 d6 9.0-0 Nbd7 10.h3 c5 11.bc6+= Bc6 12.c4 d5 (12...Qc7!?+=; 12...e5+=) 13.Rc1+/- Ne4? (better is 13...Rc8+/-) 14.cd5+– Bd5?? (14...Nd2 15.dc6 Nf1 16.cd7 Ne3 17.fe3 Qd7+–) 15.Ne4 f5 (15...Ba2 16.Nc3 Be6 17.Ng5+–) 16.Nc3 Bf7 (16...Nf6 17.Ba3+–) 17.Ng5 e5 (17...e6 18.Nf7 Rf7 19.Qb3+–) 18.Nf7 Kf7 (18...Rf7 19.Bc4 ed4 20.Bf7 Kf7 21.Qb3 Kf8 22.Ba3 Nc5 23.Na4+–) 19.Qb3 Ke8 (19...Kf6 20.Nd5 Kg5+–) 20.Nb5 e4 21.Nc7 Ke7 22.Qe6# 1–0. mrkt – savol2, internet, 2011.

5.Nbd2 b6 6.b5 Bb7 7.e3 d6 8.a4 e5 9.de5+= Ng4 10.Nc4+/- d5 11.h3 Nf2 12.Kf2 dc4 13.Qd8 Rd8 14.Bc4 Nd7 15.Bf7! Kf7 16.e6 Ke6 17.Bg7 Nc5 18.Rhe1 Ne4+= 19.Kg1 g5 20.Rf1 a6 21.Nd4 Ke7 22.Rad1 ab5 23.ab5 Ra2 24.Be5 Rd7 25.Rf5 Bd5 26.Bc7!+– Rc7 27.Rd5 Nc3 28.Re5 Kd6 29.Re6 Kd5 30.Re1 Nb5+/- 31.Nb5 Rcc2 32.Rf6 Rg2 33.Kf1 Ke5 34.Rf3 Rh2 35.Rg3 Rh1 36.Rg1 Rhh2 37.Rg5 Kf6 38.Rg3 Rh1 39.Rg1 Rhh2 40.Rg3 ½–½. Kigel,D (2130) – Kurayan,R (2310), 6th Geller Memorial Open A, Odessa UKR, 2010.

5.Nbd2 Nc6 6.b5 Na5 7.e3 (7.e4 d5 8.e5 Nh5=) 7...c6 (7...d5 8.c4=) 8.a4 d5 9.Bd3 Bg4 (9...Qc7 10.0-0=) 10.h3 Bh5? (better is 10...Bf5=) 11.g4+– Ng4 12.hg4 Bg4 13.Rh7! Kh7 (13...Bf3 14.Rg7! Kg7 15.Qf3+–) 14.Ng5 Kg8 15.Qg4 e5?? (15...f5 16.Qh4 Rf6+–) 16.Qh4 f6 (16...Re8 17.Bg6! Qg5 18.Qg5 fg6 19.Qg6 a6+–) 17.Qh7 1–0. marre – wsie, internet, 2010.

5.g3 b6 6.Bg2 Bb7 7.0-0 d6 8.c4 Nbd7 9.Qc2 Re8 10.Rd1 c5 11.bc5 bc5 12.d5 Rb8 13.Nbd2 e6 14.de6 Re6 15.e3 h6 16.Rab1 Nb6 17.Bc3 Qe8 18.Ne1 Bc6 19.Rdc1 Ne4 20.Bg7 Kg7 21.Nd3 Nd2 22.Bc6 Qc6 Attacks the isolani on c4 23.Qd2 g5 24.Rb3 f6 25.Ne1 Rd8 26.Qe2 d5 27.cd5 Rd5 (worse 27...Nd5 28.Nd3+/-; worse 27...Qd5 28.Rd3 Qa8 29.Rc5 Rd3 30.Nd3+/-) 28.Nd3 Qd6 29.Nb2 Rd2 30.Qf3 (30.Qa6!?=) 30...Re7 31.Nc4 ½-½. Krishna,CRG (2480) - Ajay,Karthikeyan (2225), ch-Commonwealth, 2019. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

5.g3 d5 6.c4 (6.Bg2!?+=) 6...dc4-/+ 7.Nbd2 b5 8.Ne5 (8.e4!?-/+) 8...Bb7–+ 9.f3 Nd5 10.e4 (better is 10.Ne4–+) 10...c3 11.ed5 cb2 (11...cd2?! 12.Qd2 Qd5 13.Rg1-/+) 12.Rb1 Qd5 13.Ne4 (13.Qe2 Qd4 14.Nd3 Nc6 15.Rb2 Qb6–+) 13...Be5 (better is 13...Rd8!? 14.Qe2–+) 14.de5 Qe5 15.Be2 Nc6 16.Nc5 (16.Qd3 Nb4 17.Qc3 Qc3 18.Nc3 a6–+) 16...Rad8 17.Qb3 (17.Nd3 Qc3 18.Qd2 Qd2 19.Kd2 Nb4 20.Ke3 Nd3 21.Bd3 Bf3 22.Rhe1–+) 17...Nd4 18.Qb2 Qe3 (18...Qe2?! 19.Qe2 Ne2 20.Nb7-/+) 19.Nb7 (19.Rf1 Bf3 20.Qd2–+) 19...Nf3 20.Kf1 Nd2 (better is 20...Rd2 21.Qd2 Nd2 22.Ke1 Nb1 23.Rg1 Qg1 24.Bf1 Qe3 25.Be2 Nc3 26.Kf1 Ne4 27.Ke1 Qc1 28.Bd1 Qd2 29.Kf1 Qf2) 21.Ke1 Ne4 22.Rf1 Rd2 (22...Rd2 23.Qg7 Kg7 24.Rf7 Rf7 25.Nc5 Qe2) 0–1. Siedentopf,Daniel (2175) – Andok,Claus Michael (2060), GER–ch internet U25 qual, 2007. (=1.d4 g6 2.b4 Bg7 3.Bb2 Nf6 4.Nf3 0-0)

5.Nbd2 d5

6.e3 a6 7.a4 Re8 8.c4 dc4 (8...Be6 9.Qc1=) 9.Nc4 (9.Bc4 Nc6+=) 9...Nc6= 10.Qb3 Be6 11.b5 ab5 12.Qb5 Bd5 13.Be2 Ne4 14.0-0 (14.Qb7?? Nd4 15.Qa8 Nc2 (15...Ba8?! 16.Bd4 Bd4 17.Nd4-/+; worse is 15...Qa8 16.Bd4 Bc4 17.Bc4–+) 16.Kd1 Qa8 (16...Ba8?! 17.Kc2 Nf2 18.Bg7 Be4 19.Kc3–+; 16...Na1?! 17.Qd8 Rd8 18.Kc1+=; worse is 16...Nf2 17.Kc2 Qa8 18.Bg7–+) 17.Kc2 Bc4 18.Bc4 Qc6–+) 14...Bc4 (14...Na7 15.Qb3=) 15.Qc4+= Nd6 16.Qb3 e5 17.de5 Ne5 18.Nd4 (18.Rfd1 Qe7+=) 18...Nd7 19.Rfd1 Qe7 20.Ba3 (20.a5 Nc5 21.Qc2 Nce4+=) 20...Nb6 (20...c5 21.Nb5 Nb5 22.Bb5 Ba1 23.Rd7 Qe6 24.Qe6 Re6 25.Rb7 Rd6+/-) 21.a5 (21.Bf3 Bd4 22.Rd4 Qe6+/-) 21...Nbc8 (21...Bd4 A) worse is 22.ed4 Qe2 23.Bd6 A1) worse is 23...cd6 24.Qb6 (24.ab6?? Ra1 25.h3 Rd1 26.Kh2 Rd3–+) 24...Qa6 25.Qb3=; A2) 23...Ra5-/+; B) 22.Rd4 Ra5 23.Rd6 Ra3 24.Rg6 (24.Ra3?! Qd6 25.Ra1 Rb8+=) 24...hg6 25.Ra3+/-) 22.Bf3 (better is 22.a6 c6 23.Bb2+/-) 22...h5? (better is 22...Bd4 23.Bd6 Nd6 24.Rd4 Qe5+=) 23.Bb7+– Bd4 24.Ba8 (24.Rd4?! Ra5 25.Bc6 Rd8+/-) 24...Ba1 25.Bc6?? (25.Ra1 Qh4+–) 25...Rd8?? (better is 25...Be5 26.Be8 Qe8+=) 26.Ra1+– Qg5 27.Bb2 Ne7 28.Qc3 f6 29.Ba4 Ne4 30.Qc7 Rd2 31.Bb3 Kf8 32.Rd1 Qb5?? 33.Rd2 Nd2 34.Qd8 Kg7 35.Qe7 Kh6 36.Qf8 Kh7 37.Bg8 Kh8 1–0. Perez De La Torre,Jorge (1640) – De Castro De Leon,Jorge, Tenerife ESP, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

6.e3 a6 7.a4 Bg4 8.c4 dc4 (8...Nc6 9.b5 Nb8 10.Be2=) 9.Bc4 Nc6 10.Qb3 Qd6 (10...e6!?=) 11.Ne5+= Qb4?? (better is 11...e6+=) 12.Nc6+– Qb3 13.Ne7 (13.Nb3?! bc6 14.Nc5 a5+/-) 13...Kh8 14.Bb3 Rae8 15.Ba3 Re7 (15...Nd7 16.h3 c5 17.hg4 Re7+–) 16.Be7 Re8 17.Bf6 Bf6 18.0-0 (18.Rc1 Re7 19.h3 Bc8+–) 18...c5 19.Rac1 (19.Rab1 cd4 20.Bf7 Re7+–) 19...cd4 20.ed4 Bd4 21.Nf3 (better is 21.Bf7 Re2 22.Nb3 Bf6+–) 21...Bf3 22.gf3 f5 (22...b5 23.Rfd1 Be5 24.Rc5 ba4 25.Ba4+–) 23.Rfd1 Bf6 24.Rc7 b5 (24...Re7 25.Rd8 Kg7 26.Re7 Be7+–) 25.Rdd7 (25.Rdd7 Re1 26.Kg2+–) 1–0. Vellema,Jelle (1800) – Archip,Laurentiu, FICGS, 2017. (=1.d4 d5 2.Nf3 Nf6 3.e3 g6 4.Nbd2 Bg7 5.b4 0-0 6.Bb2 a6)

6.e3 a6 7.Bd3 c6 (7...Nc6!? 8.a3 e5 9.Ne5 Ne5 10.de5 Ng4=) 8.0-0+= b5 (8...a5 9.a3+=) 9.e4 (9.a4 Bb7+=) 9...e6 (9...Nbd7 10.a4=) 10.a4 (10.e5 Nh5+–) 10...Bb7 (10...de4!? 11.Ne4 Ne4 12.Be4 Bb7+=) 11.e5+– Ng4 (11...Nh5 12.g3+–) 12.h3 (12.Nb3 Nd7+–) 12...Nh6+– 13.Nb3 Nf5 14.Nc5 Bc8? (better 14...Qc7!?+–) 15.ab5+– cb5 16.g4 (16.Bb5!? Qb6 17.Qe2 Ra7+–) 16...Nh4 17.Nh4 (17.Bb5 Qb6 18.Ba4 Nf3 19.Qf3 Nc6+–) 17...Qh4+– 18.Bb5! Qh3 (18...ab5 19.Ra5 Double attack (19.Ra8 Pinning; 19.Ra8 Deflection; 19.Ra5 Decoy)) 19.g5 (19.Ra3 Qh4+–) 19...h5? (19...Qh4!? 20.Bc1 Be5 21.de5 Qb4+=) 20.gh6! Bh6 (20...Bh6 21.Qd3 Combination; 20...Qh6 21.Qf3 Combination) 21.Qd3 Qg4 22.Qg3 Qh5 (22...Qg3!? 23.fg3 Kg7+–) 23.Kg2+– Qf5 (23...Qg5 24.Rh1+–) 24.Rh1 Qg5 25.Bc3 (25.Bd3 Nc6 26.Rh6 Qh6+–) 25...Qg3 26.Kg3 Bg5 (26...Bg7 27.Be2+–) 27.Rh3 Kg7 28.Rah1 (28.Be2 Nd7 29.b5 a5+–) 28...Rg8 (28...ab5?? 29.Rh7 Kg8 30.Rh8 Kg7 31.R1h7) 29.Ba4 (29.Rh7 Kf8 30.Ra1 Rg7+–) 29...Ra7 30.Kg4 Be7 31.Bd2 f5?? (31...g5+–) 32.ef6! Bf6 (32...Bf6 33.Rh7 Double attack; 32...Kf6 33.Rf3 Mate attack) 33.Rh7 Kf8 34.Ra7 Bd4 35.Rhh7 e5 (35...Bg7 36.Bh6 e5 37.Kg5 Nd7 38.Nd7 Ke7 39.Bg7 Bb7 40.Rb7 Rg7 41.Nc5 Kd6 42.Rd7 Rd7 43.Rd7) 36.Kg3 Bc5 (36...Bf2 37.Kf2 Nd7 38.Nd7 Ke8 39.Ne5 Bd7 40.Ra8) 37.Raf7 1–0. Pierre – GuestPasa, internet, 2020.

6.e3 Nfd7 7.c4= c6 (7...dc4 8.Nc4 Nb6 9.b5=) 8.cd5 (8.Qb3 a5+=) 8...cd5= 9.Qb3 Nf6 10.Be2 Bg4 (10...Nc6 11.0-0=) 11.h3 Bf3 12.Nf3 Nc6 13.0-0 e6 14.Nd2 a6 15.Rfc1 Qd6 16.b5 ab5 17.Bb5 Rfc8 18.a4 Na5 19.Qd3 Bf8 20.Rc2 Rc2 21.Qc2 Qd8 22.Rc1 Ne8 23.Nb3 (23.Bc3 Nd6=) 23...Nd6= 24.Na5 Qa5 25.Bc3 Qa7 26.Rb1 Nb5 27.Rb5 ½–½. Miroshnichenko,Evgenij – Maghsoodloo,Parham, Stars Cup, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Nfd7)

6.e3 Ne4 7.c4 b6 8.Rc1 Bb7 9.cd5 Nd2 10.Qd2 Bd5 11.a3 Nd7 (11...a5 12.b5+=) 12.Be2 Qb8 (12...c6 13.0-0+=) 13.0-0 (13.b5 Rc8+/-) 13...Qb7+= 14.Rfd1 ½–½. Khismatullin,D (2655) – Nepomniachtchi,I (2655), 11th EICC Men, Rijeka CRO, 2010.

6.e3 Ne4 7.Bd3 Nd2 8.Qd2 Nd7 9.c4 dc4 10.Bc4 Nb6 11.Bb3 Bg4 12.h3 Bf3 13.gf3 Qd7 14.Rc1 Rad8 15.Qc2 Nd5 16.a3 c6 17.h4 h5 18.Kf1 e6 19.Rd1 Qc7 20.Bc1 Ne7 21.Bb2 Nf5 22.Rd3 a5 23.Ke2 ab4 24.ab4 Rd7 25.Qc5 Rfd8 26.f4 b6 27.Qc2 c5 28.Rh2 Qa7 29.Ba4 Rc7 30.Qd1 Qa8 31.Ra3 cd4 32.Bc2 Qc8 33.Bf5 ef5 34.Bd4 Bd4 35.ed4 Rc2 36.Kf3 Rc3 37.Rc3 Qc3 38.Kg2 Rd4 39.Qf3 Qf3 40.Kf3 Rb4 41.Rh1 Rb3 42.Kg2 b5 43.Ra1 b4 44.Ra6 Rc3 45.Rb6 b3 46.Rb8 Kg7 47.Rb6 Kf8 48.Rb7 Rd3 49.Kf1 Ke8 50.Ke2 Rc3 51.f3 Rc2 52.Ke3 b2 53.Kd4 Re2 54.Kd3 Rh2 55.Ke3 Kd8 56.Rb3 Kc7 0–1. Terry,R (2430) – Klein,Da (2295), WY Boys–U18 Porto Carras GRE, 2010.

6.e3 Ne4 7.Ne4 de4 8.Nd2 f5 9.Be2 e5 10.de5 Nc6 11.a3 Ne5 12.Bd4 (12.Nc4 Nf7=) 12...Qe7 13.0-0 Be6 (13...Rd8!?=) 14.Bc5+/- Qf7 15.Bf8 Rf8 16.Nb3 f4 17.ef4 Qf4 18.Nc5 Bg4 19.Qd5 (19.c3 Nf3 20.Bf3 Bf3+/-) 19...Kh8+= 20.Ne6 Qf7?? (better 20...Be6 21.Qe6 Nc6+=) 21.Bg4+- Ng4 22.Qe4 Nf6 23.Qc4 c6 24.Rae1 Rg8 (24...Re8 25.Re3+-) 25.Qb3 (25.Qc5 a6+-) 25...Nd5 26.Ng7 Kg7 27.c4 Nf4 (27...Nf6 28.Qd3+-) 28.g3 (28.Qc3 Kh6+-) 28...Ne6 (28...Nh5 29.Qd3+-) 29.Qc3 (better 29.Qe3 Re8+-) 29...Kf8 (29...Qf6 30.Qe3 Re8+-) 30.Qe5 (better 30.Re3 g5 31.Rd1+-) 30...Nc7 (30...Ke7 31.f4 Qf5 32.Qc7 Kf6+-) 31.Qd6 Kg7 32.Re7 Ne8 33.Rf7 Kf7 (33...Kh8 34.Qe5 Ng7 35.Rg7 Rg7 36.Rd1 h6 37.Rd7 Kh7 38.Qg7) 34.Qd7 Kf8 (34...Kf6 35.Re1 g5 36.Re6 Kf5 37.Rc6 Ke4 38.Qd5) 35.Re1 Rg7 (35...Nf6 36.Qe7) 36.Re8 (36.Qe8?!=) 1-0. BabaRamdev (2745) - ficorrales (2595), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

6.e3 Ne4 7.Ne4= de4 8.Nd2 f5 9.Be2 (9.Bc4 e6+=) 9...e5 (9...a6 10.c3=) 10.de5 (10.Bc4 Kh8 11.de5 Qe7=) 10...Qe7 11.c3 (11.b5!?+=) 11...Nc6+= 12.Qb3 (12.0-0 Be6+=) 12...Be6-/+ 13.Bc4 Rfe8 14.Be6 Qe6 15.Qe6 (15.f4 ef3 16.Nf3 Ne5 17.Ne5 Be5-/+) 15...Re6 16.f4 ef3! 17.Nf3 (17.Nf3 Ne5; 17.gf3 Ne5) 17...Ne5 18.Ne5 Re5 19.Rd1 (better is 19.Kf2!?-/+) 19...Re3–+ 20.Kf2 Rae8 21.Rhe1 Re1 22.Re1 Re1 23.Ke1 b5 24.Ke2 Kf7 25.Kd3 Ke6 26.h3 Kd5 27.a4 a6 28.ab5 ab5 29.Bc1 c6 30.Be3 Be5 31.Bh6 (31.Bg5 Bb8–+) 31...Bf6 32.Bf8 (32.Be3 Bh4–+) 32...h5 33.Bc5 g5 34.Bf2 (34.Bf8 Be5–+) 34...Be5 (34...f4 35.Bb6–+) 35.Be3 f4 36.Bf2? (36.Bg1–+) 36...g4 37.hg4 hg4 38.Bg1 (38.Be1 f3 39.gf3 g3–+) 38...f3 39.gf3 gf3 40.Bf2 Bc7 41.Bd4 Bg3 42.Ke3 f2 43.Ke2 Kc4 44.Bf6 Bf4 0–1. Andersen,Per O (2040) – L'ami,Erwin (2645), Reykjavik Open, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Ne4)

6.e3 Re8 7.Be2 Qd6 8.a3 b6 (8...a5 9.b5=) 9.c4+= c6 10.0-0 (10.Qa4 Bf5+=) 10...Nbd7 (10...Bf5 11.Rc1+=) 11.Ne5 (11.Qc2 a5+=) 11...Ne4 (11...a5 12.Qa4 c5 13.cd5 cd4 14.Ndc4+/-) 12.Ne4 de4 13.f4 (13.Nd7 Bd7 14.Qc2 Qe6+/-) 13...c5 (13...ef3 14.Nf3 e5 15.c5+=) 14.Qa4 Rf8 (14...cd4 15.Bd4 Rf8 16.Qc6 Qc6 17.Nc6+/-) 15.Rad1 Ne5 16.de5 (16.fe5 Qc7+/-) 16...Qc7+= 17.Rd2 cb4 (17...Be6 18.Rfd1+=) 18.ab4 a5 19.c5 (19.Rfd1 Be6+=) 19...bc5 20.Rc1 g5 (20...Bf5 21.bc5 Rfd8 22.Bd4+=) 21.Rc5 (21.bc5 gf4 22.Qe4 Ba6 23.ef4 Be2 24.Qe2 Rfd8+–) 21...Qb6+= 22.e6 (22.Rd4 ab4 23.Qa8 Qc5 24.Qe4 gf4+/-) 22...f5 (22...f6 23.f5 ab4 24.Qc2+=) 23.Bg7+= Kg7 24.Qa1 Kg8 25.Rd4 (better is 25.Rdc2!? Qb4 26.fg5 Be6 27.Rb5=) 25...ab4-/+ 26.Qa8 (better is 26.Qc1!?-/+) 26...Qc5–+ 27.g3 (27.Qd5 Qc1 28.Kf2 gf4–+) 27...b3 28.Kf2 gf4 29.gf4 Be6 30.Qb7 Bf7 31.Rd7 e5 32.Rc7 (32.Bh5 Qc2 (32...Bh5?? 33.Rg7 Kh8 34.Rh7 Kg8 35.Qg7) 33.Kg3 ef4 (33...Bh5 34.Rg7 Kh8 35.Rh7 Kg8 36.Qg7) 34.Kh3 f3 35.Rf7 Qg2 36.Kh4 Qh2 37.Kg5 Qg3 38.Kf5 Qh3 39.Kg5 h6 40.Kh6 Qe6 41.Kg5 Rf7 42.Bf7 Qf7 43.Qb8 Qf8 44.Qb3 Kh8–+) 32...Qd6 (better is 32...Qd5 33.Qd5 Bd5–+) 33.Rd7? (33.Bh5 Qd2 34.Kf1 Qd3 35.Kf2 ef4 36.Bf7 Rf7 37.Qc8 Kg7 38.Rf7 Kf7 39.Qf5 Ke8 40.Qe6 Kd8 41.Qb6 Kd7 42.ef4 Qf3 43.Kg1 Qg4 44.Kh1 Qd1 45.Kg2 Qe2 46.Kg1–+) 33...Qf6 (33...Qh6 34.fe5 Qh2 35.Ke1 Qe5 36.Qb6–+) 34.Kg2 ef4 35.ef4 Qc3 (35...Rd8 36.Qa6 Qg7 37.Kf1 Rd7 38.Qc8 Qf8 39.Qd7–+) 36.Qb5 Qe3 37.Rf7 (37.Rd1 Qf4 38.Kh1 e3–+) 37...Rf7 (37...Kf7 38.Qf5 Ke7 39.Qe5 Kd7 40.Bb5 Kc8 41.Qe6 Kc7 42.Qc6 Kb8 43.Qd6 Kb7 44.Bc6 Ka6 45.Ba8 Kb5 46.Qf8 Qf3 47.Kg1 Qd1 48.Kf2 Qf3 49.Ke1 Qe3 50.Kf1 Qd3 51.Ke1 Qe3 52.Kd1 Qd3 53.Ke1 Qe3=) 38.Bc4 Qf3 39.Kg1 Qg4 (39...Qd1 40.Kg2 Qd2 41.Kh1 Qc1 42.Kg2 Qb2 43.Kh1 Qa1 44.Kg2 Qg7 45.Kf1–+) 40.Kh1 Qd1 41.Kg2 Qg4 (better is 41...Qd2!? 42.Kh1 Qc1 43.Kg2 Qb2 44.Kh1 Qa1 45.Kg2 Qg7 46.Kf1–+) 42.Kh1 Kg7 43.Bf7 Kf7 (43...Qd1 44.Kg2 Qf3 45.Kg1 Qe3 46.Kg2 Qd2 47.Kg3 Qc3 48.Kg2+=) 44.Qb3 Kg7 45.Qc3 (45.Qe3 Kh6 46.h3 Qd1 47.Kh2 Kh5–+) 45...Kg6 46.Qe5 (46.Qc6 Kh5 47.Qe8 Qg6–+) 46...Kh5 (46...Qh3 47.Qe6 Kh5 48.Kg1 Qg4 49.Kh1 Qf4 50.Kg2–+) 47.Qe8 Qg6 48.Qb5 (48.Qe5 Kg4 49.Kg2 Qg8–+) 48...h6 49.Qf1 (49.Qb3 Qg4 50.Qf7 Kh4 51.Qf6 Kh3 52.Qh6 Qh4 53.Qh4 Kh4–+) 49...Qg4 50.Qc1 Qf3 51.Kg1 e3 52.Qc4 Kh4 53.Qc1 (53.Qf1 Qf1 54.Kf1–+) 53...Qf2 54.Kh1 e2 (54...e2 55.h3 Qf3 56.Kh2 Qg3 57.Kh1 Kh3 58.Qc3 e1Q 59.Qe1 Qe1) 0–1. Smirnova,Anastasia (2075) – Timofeeva,Ekaterina (2275), Moscow Open Women, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Re8)

6.e3 Re8 7.Be2 Nbd7 8.h3 b6 9.0-0 c5 10.bc5 bc5 11.c4 Bb7 12.cd5 Nd5 (12...Bd5 13.dc5 Nc5 14.Rc1=) 13.Nc4 Rb8 14.Qd2 (14.Rc1 N5f6=) 14...N5f6 (14...N5b6 15.Nb6 Nb6 16.Rac1=) 15.Rfd1 Ne4 16.Qc2 cd4 (16...Nd6 17.dc5 Be4 18.Qc1 Bb2 19.Nb2 Nc5 20.Qc5 Rb2 21.Rd2 Rd2 22.Nd2+=) 17.Bd4+= Bd4 18.Rd4 Nef6 19.Nfe5 (19.Nce5 Bd5 20.Qd2 Ne5 21.Ne5 Qd6+=) 19...Qc7+= 20.Nd7 Nd7 21.Qd2 (21.Rad1 Nb6=) 21...Nf6 22.Qa5 Qa5 23.Na5 Bd5 24.Bc4 Bc4 25.Rc4 Rb2 26.Nc6 Kf8 (26...a6 27.Ra4 Rb6 28.Rc1=) 27.a4 (27.Na7 Rd8 28.Rc8 Rc8 29.Nc8 Ne4+/-) 27...a6 28.Rd1 (28.Nb4 Ra8+=) 28...Rc8= 29.Rdd4 Rb1 30.Kh2 Rb6 31.Nb4 Rc4 32.Rc4 Ke8 (32...e5 33.Nc6 Nd7 34.a5=) 33.a5 ½–½. Maia,Marco Aurelio Ferre (2115) – Rosa,Jose Antonio (2030), Rio de Janeiro BRA, Regional Sudeste, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

6.e3 a5

7.a3 ab4 8.ab4 Ra1 9.Qa1 Bg4 (9...Bf5 10.c4=) 10.Be2 (10.Qa7 Qc8=) 10...Nc6 (10...Qd6 11.b5=) 11.b5+= Nb8 12.0-0 Ne4 (12...Nbd7 13.c4+=) 13.Bd3 Nd2 14.Nd2 c6 15.bc6 Nc6= 16.c3 Qb6 17.c4 dc4 18.Nc4 Qb3 19.Qa3 Qa3= 20.Ba3 Re8 21.Rb1+/- e5 22.de5 Ne5 23.Ne5 Re5 24.Rb7 Ra5?? 25.Rb8+– Bf8 26.Bf8 +–. Brukske – Clyde Barrow (1630), internet, 2007.

7.a3 Nc6 8.b5 Na7 9.a4 c6 10.c4 dc4 (10...Bf5 11.Be2=) 11.Bc4+= cb5 12.ab5 b6 (12...Bd7 13.Qb3+=) 13.0-0 (13.Qa4 Ne8+=) 13...Bb7 (13...Bd7 14.Qb3 Qe8 15.Ba3=) 14.Qe2 Ne8 15.e4 Nc7 Attacks the isolani on b5 16.Rab1 Ncb5 (16...a4 17.Ra1 Nc8 18.Ra3+=) 17.Bb5+– Nb5 18.Qb5 Ba6 19.Qa4 Bf1 20.Nf1 Rb8 (20...Qe8 21.Qa1+–) 21.Qb5 (21.Ba3 Rb7+–) 21...Qc7 (21...Qe8 22.Qe2+–) 22.Ne3 e6 23.g3 (23.d5!? Rfc8 24.Bg7 Kg7 25.de6 fe6 26.Nd4+–) 23...Rfc8+– 24.Rc1 Qb7 25.Rc8 Rc8 (25...Qc8 26.Nc4 Qe8 27.Qe8 Re8 28.Nb6 Rb8+=) 26.Ne5 (26.d5 Bb2 27.Qb2 Qc7+–) 26...f6 (26...Qe4!? 27.Qd7 Rf8+=) 27.N5c4+– Qe4 28.Qb6 (worse 28.Nb6 Rb8 29.Nec4 Qe1 30.Kg2 Qe4 31.Kg1 Qb1 32.Kg2 Qe4 33.Kg1=) 28...Rc4 29.Nc4 (29.Qb8 Bf8 30.Nc4 Qe1 31.Kg2 Qe4 32.Kh3 Qf5 33.g4 Qf2=+) 29...Qe1= 30.Kg2 Qe4 31.Kf1 Qd3 32.Kg1 Qb1 (32...Qc4?? 33.Qd8 Kf7 34.Qd7 Kg8 35.Qe8 Bf8 36.Ba3+–) 33.Kg2 ½–½. Balkishan,A (1995) – Rathnakaran,K (2325), 1st Hyderabad Open (5), 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5)

7.a3 Nbd7 8.c4 dc4 9.Nc4 ab4 10.ab4 Ra1 11.Qa1 Nd5 12.b5 c5 13.bc6 Nb4 14.Qa5 Nc6 15.Qd8 Rd8 16.Be2 b5 17.Ncd2 b4 18.0-0 Nb6 19.Rc1 Bb7 20.Nb3 Na4 21.Ba1 Rc8 22.Bb5 Nb6 23.Ne1 e5 24.Nd3 ed4 25.Bc6= Rc6 26.Rc6 Bc6 27.Bd4 Bd5 28.Bb6+= Bb3 29.Nb4 Bc3 30.Nc6 Ba4 31.Ne7 Kf8 32.Nd5 Be5 33.Bc5 Ke8 34.Bd4 Bb3 35.Nc3 Bd6 36.Ne4 Be7 37.f3 Bc2 38.Nd2 Kd7 39.Kf2 Ke6 40.e4 Bd6 41.g3 h5 42.h4 f6 43.Nc4+/- Bc7 44.Ne3 Bb3 45.Bc5 f5 46.ef5 gf5 47.Ng2 Kd5 48.Be3 Bc2 49.Bf4 Bb6 50.Ke2 Kc4 51.Be5 Bd3 52.Ke1 Ba5 53.Kd1 Kd5 54.Bb8 Bb5 55.Nf4 Kd4 56.Ba7 Kc3 57.Be3 Ba4 58.Kc1 Bc7 59.Bd2 Kc4 60.Nh5 Bc6 61.Bf4 Ba5 62.Ng7 Bf3 63.Nf5 Bc3 64.Bd2 Bd4 65.Nh6 Bg7 66.Nf7 Kd3 67.Bf4 Bh5 68.Nd6 Bf8 69.Nf5 Ke4 70.Ne3 Bc5 71.Nc4+– Kf5 72.Kd2 Ke4 73.Ke1 Bd4 74.Kf1 Bf6 75.Kg2 Kf5 76.Bd2 Bg4?? 77.Ne3 (77.Ne3 Ke6 78.Ng4+–) 1–0. Fernandez,Daniel Howard (2385) – Dewi,Aa Citra (2130), Jakarta INA, Indonesia Open, 2013. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d5 6.e3 a5)

7.a3 Bf5 8.c4=.

7.ba5 Ra5 8.Bd3+=.

7.ba5 c5 8.dc5+= Qa5 9.Bd3 Nc6 10.0-0 Qc5 11.Nb3 Qd6 (11...Qb6 12.Qe2+=) 12.a4 (12.Nbd4 Bd7+=) 12...Re8 (12...Bg4 13.Nbd2-/+) 13.Bb5 (13.Nbd4 e5 14.Nb5 Qb8-/+) 13...e5 (13...Bg4 14.c4 Red8 15.Rc1-/+) 14.c4+= e4 15.cd5 Qd5 16.Qd5+= Nd5 17.Nfd4 Nd4 18.Bd4 Rd8 19.Bg7 Kg7 20.Nc5 Nc3 21.Bc4 b6 22.Rfc1 bc5 23.Rc3= Ra5 24.Bb5 Ba6 25.Rc5 Bb5 26.Rb5 Ra4 27.Rbb1 Rda8 28.Ra4 Ra4 29.g4 g5 30.Rb6 f6 31.Kg2 Kg6 32.Kg3 h6 33.h4 gh4 34.Kh4 Ra5 35.Kg3 h5 36.Re6 hg4 37.Re4 f5 38.Re8 Kf6 39.Rg8 Ra2 40.Rb8 Kg5 41.Rb5 Kf6 42.Rc5 Rb2 43.Rc4 Kg5 44.Rf4 Rb3 ½–½. Spicak,Krzysztof (2120) – Bartel,Michal, Poland–ch sf Polanczyk, 2000.

7.b5 a4 8.c4 dc4 (8...Bf5 9.Be2=) 9.Bc4 c6 (9...a3 10.Bc1=) 10.Ba3 cb5 11.Bb5 Qa5 (11...Bd7 12.Qb1=) 12.Be2 Nd5 (12...Nc6 13.0-0=) 13.0-0 (13.Rc1 Nc6+=) 13...Nc3= 14.Qe1 Ne2 (14...Nc6 15.Bd3 b5 16.Bc5=) 15.Qe2 Nc6 16.Rfc1 Bd7 (16...Be6!?=) 17.Rab1+/- b5 (17...Qd5 18.Nc4 (18.Rb7? Nd4 19.Nd4 Qb7–+) 18...Be6 19.Bc5+/- (19.Rb7 Nd4 20.Nd4 Qb7–+)) 18.d5 (18.Qb5 Qb5 19.Rb5 Nd4 20.Nd4 Bb5 21.Nb5 Rfc8=) 18...Ne5 19.Ne5 (19.Be7 Rfc8 20.Ne5 Be5+/-) 19...Be5 20.Be7 Rfc8 21.Rc8 (21.Nf3!? Bc3 22.Ng5+/-) 21...Rc8+= 22.Bb4 Qc7 23.f4 Bd6 24.Bd6 Qd6 25.Qd3 (25.Ne4 Qe7 26.Ng3 Qa3+=) 25...Qc5 (25...f5 26.g3+=) 26.Ne4+/- Qb6 27.a3 (27.Kf2!?+/-) 27...Bf5+= 28.Kf2 (28.g4 Be4 29.Qe4+=) 28...Re8?? (better is 28...Qd8 29.Qd4 Rc4 30.Nf6 Kf8 31.Nh7 Kg8 32.Nf6 Kf8 33.Nh7 Kg8 34.Nf6 Kf8 35.Nh7=) 29.Rb4+/- Qd8 (29...h5+/-) 30.h3 (30.Kf3!? Qh4 31.h3 Qe7+–) 30...Qh4 (30...Qe7 31.d6 A) 31...Be4?? 32.Re4 (32.de7?! Bd3 33.Rd4 Re7 34.Rd3 Rc7=) 32...Qh4 33.Kf3+–; B) 31...Qd8+=) 31.Kf1 (31.Ke2 Qe7 32.d6+=) 31...Qe7+= 32.d6 Qe6?? (better is 32...Qd8+=) 33.g4+– Rd8 (33...Be4 34.Re4! Qe4 35.Qe4 Re4 36.d7+–) 34.gf5 gf5 35.Ng5 (better is 35.Qb5!? Rf8 36.Nf2 Qd6 37.Qf5 Qc6+–) 35...Rd6 36.Ne6 Rd3 37.Nd4 (better is 37.Rd4 Rd4 38.Nd4 b4 39.ab4 Kf8+–) 37...Ra3 (37...Re3 38.Nb5 Rh3 39.Ra4+–) 38.Rb5 1–0. Holliman,Bob (1875) – Vega Maasdorp,Osean, 13th Open Amateur de Calvia, 2016. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d5 6.Nbd2 a5)

7.b5 c6 8.a4 h6 9.c4 Ne4 (9...Be6 10.Bd3=) 10.cd5 cd5 11.Be2 f5 12.0-0 Be6 13.Rc1 Nd7 14.Nb3 Nb6 15.Nc5 Nc5 16.Rc5 Nc4 17.Bc4 dc4 18.Ne5 Be5 19.Re5 Qd7? (better is 19...Bd5+/-) 20.d5+– c3 (20...Rf6 21.de6 Qd1 22.Rd1+–) 21.Bc3 (21.Re6 Rf6 22.Bc3 Re6 23.de6 Qd1 24.Rd1 Rc8+–) 21...Rfc8 (21...Bd5 22.Rd5 (worse is 22.Qd5 Qd5 23.Rd5 Rfc8+–) 22...Qe6 23.Qd4+–) 22.Re6 (22.de6?! Qd1 23.Rd1 Rc3+/-) 22...Rc3 (22...Kf7 23.Qd4 Rc3 24.Qc3 Qd5 25.Rb6+–) 23.Qd4 (better is 23.Rg6 Kf8 24.Qd4+–) 23...Qc8 (23...Kf7 24.Qc3 Qd5+–) 24.Rg6 Kf7 25.Rg7 Kf8 26.Rh7 (26.Rh7 Ke8 27.Qe5 Qe6 28.de6 Re3 29.Qh8) 1–0. Hojka,Christoph (2005) – Nikula,Reiner (2275), NRW Class1, 2005. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5)

7.b5 c6 8.bc6 bc6 9.c4 Ba6 10.Be2 Nbd7 11.0-0 c5 12.Rc1 Rc8 13.cd5 Be2 14.Qe2 Nd5 15.Nc4 cd4 16.Bd4 Bd4 17.Nd4 Nc5 18.Ne5 (18.Rfd1!?+/-) 18...Qd6= 19.Qb5 Ne4 (19...Ne3 20.Nec6 Ng4 21.f4=) 20.Nc4 Qc5 21.Qa5 Nec3 22.Qc5 Rc5 23.Ne5 Ra8 24.Nd3 Rc7 25.Rc2 Ra2 26.Ra2 Na2 ½–½. Roy Chowdhury,S (2500) – Pranav,V (2210), Port Elizabeth RSA, Commonwealth Ch, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5)

7.b5 Ne4 8.Ne4+= de4 9.Nd2 e5 10.de5 (10.d5!?+=) 10...Qe7= 11.Be2 (11.Qc1 Be5 12.Ba3 Bd6 13.Bd6 cd6=+) 11...Be5 12.Be5 (12.Qc1 Rd8=+) 12...Qe5=+ 13.0-0 Bf5 (13...Be6 14.c3=+) 14.a4 Nd7 15.Nb3 (15.Nc4 Qe7=) 15...Nf6 (15...Be6 16.c4=) 16.Qd4= Qd4 17.Nd4 Rad8 (17...Nd5 18.c4 Nc3 19.Rfe1 Ne2 20.Re2=) 18.c4 (18.Rfd1 Nd5=) 18...Rd7 (18...Nd7 19.Nb3=) 19.h3 Rfd8 (19...Be6 20.Rfd1+=) 20.Rfd1+= h5 21.Nb3 (21.c5 Rd5=) 21...b6 (21...Rd1 22.Bd1 b6 23.Nd4=) 22.Nd4 h4 (22...Kg7=) 23.Nc6 (23.Rac1!?+=) 23...Rd1=+ 24.Rd1 Rd1 25.Bd1 Be6 26.Be2 (26.c5 Nd7 (worse 26...bc5 27.Na5 Nd7 28.Nb3+=) 27.cb6 cb6=+) 26...Nd7 (26...Kf8 27.Nd4=+) 27.Nd4 Nc5 28.Ne6 fe6 (28...Ne6 29.Bd1=+) 29.Bd1= Kf7 30.Kf1 Ke7 31.Ke2 Nd3 32.Bc2 Nc5 33.Kd2 Kd6 34.Kc3 Ke5 35.f3 (35.Kd2 Nd7=) 35...ef3=+ 36.gf3 g5 37.Kd2 Nb7 (37...Kd6 38.Kc3=+) 38.Ke2 (38.Be4 Nd6 39.Bd3 Ne8=+) 38...Nd6 (38...Kd6 39.Kd3-/+) 39.Bb3 (39.Bd3 Nf7=) 39...Nf5=+ 40.Kf2 (40.Bd1 Kd6=+) 40...Kd6 41.e4?? (better 41.Bc2 Ng3 42.f4 gf4 43.ef4-/+) 41...Nd4-+ 42.Ba2 (42.e5 Ke5 43.Bd1 Kf4-+) 42...Kc5 (42...e5 43.Kg1-+) 43.Ke3 (43.e5-+) 43...e5 44.Kd3 (44.Bb1 Kc4 45.Ba2 Kb4-+) 44...Nf3 45.Ke3 Ng1 0-1. Antonova,N (1875) - Gaboyan,S (2215), Titled Tuesday, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.b5 Bf5 8.c4 c6 9.a4 Nbd7 10.Be2 dc4 11.Nc4. Hnatovsky,Nicholas (2270) – Muhl,Patrick (2355), WC–2012–S–00011, 2009.

7.b5 Bg4 8.h3 Bf5 9.g4=.

7.b5 a4

8.a3 c6 9.c4 cb5 10.cb5 Bg4 (10...Qb6 11.Rc1=) 11.Bd3 (11.Rc1 Qb6=) 11...Nbd7 (11...Qb6 12.Rc1=) 12.0-0 (12.Rc1 Nb6+=) 12...Qa5= 13.h3 (13.Rc1 Rfc8=) 13...Bf3 (13...Bf5 14.Bf5 gf5 15.Qe2=) 14.Nf3+= Rfc8 (14...Rac8 15.Rc1+=) 15.Qd2 (15.Rc1 Nb6 16.Qe2 Rc1 17.Rc1 Rc8+=) 15...Nb6 (15...Qd2 16.Nd2 Rc7 17.Rfc1+=) 16.Rfc1 (16.Qa5 Ra5 17.Rfc1 Raa8+=) 16...Nc4 17.Bc4 (17.Qa5 Na5 18.Rc8 Rc8+=) 17...dc4= 18.Qa5 Ra5 19.Nd2 Rb5 20.Rab1 Nd5 (20...Rb6 21.Nc4 Rb3 22.Nd2 Rc1 23.Bc1 Rb1 24.Nb1=) 21.Rc4 Rc4 22.Nc4 Nb6 (22...f5 23.Rc1=) 23.Nd2 e6 (23...f5=) 24.Bc3 (better is 24.Kf1!?+=) 24...Rb1+= 25.Nb1 Nd5 (25...Bf8 26.Bb4+=) 26.Bd2= Bf8 (26...b5 27.Kf1=) 27.Kf1 (27.e4 Nb6=) 27...f5 28.Ke2 (28.f3 b5=) 28...b5+= 29.Kd3 Kf7 30.f3 Nb6 (30...b4 31.ab4 Bb4 32.Bb4 Nb4 33.Kd2+=) 31.Nc3 Ba3 32.Nb5 Be7 33.Ba5 (33.Bc1 g5=) 33...Nd5+= 34.Nc3 (34.Bd2 g5+=) 34...a3 35.Nd5 (35.Na2 Bd6+=) 35...ed5-/+ 36.Bc3 Ke6 (36...a2 37.Kc2 Bb4 38.Bb2+=) 37.Kc2= f4 38.ef4 Kf5 39.Bd2 Bf6 (39...h5 40.g3=) 40.g4 Ke6 41.Be3 (41.Kb3 Bd4 42.Ka3 Bg7+=) 41...Be7= 42.Kb3 Bf8 43.Bc1 Bg7 44.Be3 (44.Ba3 Bd4 45.Bf8 Kf7=) 44...Bf8= 45.Bd2 Bg7 46.Bc3 (46.Ka3 Bd4 47.Kb4 Kd6+=) 46...Bf8 47.Bd2 (47.Ba5 Be7+=) 47...Be7= 48.Bc1 Bf6 49.Kc3 (49.Ba3 Bd4 50.Kc2 Be3+=) 49...Be7= 50.Kb3 Bf8?? (better is 50...Bf6=) 51.Ba3+– Bg7 52.Bb2 Bh6 (52...h5 53.Kb4+–) 53.Bc1 Bg7 (53...Kd7 54.Kb4 Kd6 55.h4+–) 54.Be3 Bf8 (54...Bf6 55.Kb4 Be7 56.Kb5+–) 55.Ka4 Kd7 (55...Be7 56.Kb5 Kd7 57.f5+–) 56.Kb5 Bd6 (56...Be7 57.f5+–) 57.Bd2 (57.f5 gf5 58.gf5 Be7+–) 57...Bf8 58.Bb4 (58.f5 gf5 59.gf5 Be7+–) 58...Bg7 (58...Bh6 59.f5+–) 59.Bc3 (59.Bc5 h6+–) 59...Bf8 (59...Kd6 60.f5 gf5 61.gf5+–) 60.Kb6 Bd6 61.Bd2 (61.f5 gf5 62.gf5 Be7+–) 61...Be7 (61...Ba3 62.f5+–) 62.Kb7 (62.f5!? gf5 63.gf5 h5+–) 62...Bd6 (better is 62...Bf6 63.Be3 Bd8+–) 63.Kb6 Be7 64.Kb5 (64.f5 gf5 65.gf5 Bd6+–) 64...Bd6?? (64...Bf8 65.f5 gf5 66.gf5 Be7+–) 65.Bc1 (65.f5 gf5 66.gf5 Be7+–) 65...Be7 66.Bb2 (66.f5 gf5 67.gf5 Bd6+–) 66...Bd6 67.Bc1 Be7 68.Bd2 Bd6 69.f5 gf5 70.gf5 Be7 71.Bf4 (71.Bh6 Bd6+–) 71...Bf8 72.Be5 Be7 73.f6 Bf8 (73...Ba3 74.f7 Bf8 75.f4+–) 74.f4 (74.f7 Ke6 75.Kc6 h5+–) 74...Ba3 75.f5 Bf8 76.f7 (76.Bf4 Ba3+–) 76...h5 (76...Ke7 77.Kc5 Kf7 78.Kd5+–) 77.Kb6 Ke7 78.Kc6 Kf7 79.Kd5 Ba3 80.Ke4 Bb4 81.Kd5 (81.d5 Ke7+–) 81...Ba3 82.Kc6 (82.f6 Bc1+–) 82...Bb2 83.Kd6 Ba3 84.Kd5 Bb4 85.Kc4 Ba3 86.d5 Be7 (86...Ke8 87.d6+–) 87.d6 (87.Kb5 Kf8+–) 87...Bd8 (87...Bd6 88.Bd6 Kf6+–) 88.Kd5 Bg5 89.Kc6 Ke8 (89...Be7 90.d7 Bd8 91.Kb7+–) 90.Kc7 (90.d7 Kf7+–) 90...Bd8 91.Kc8 Ba5 92.Bf6 (92.d7 Ke7+–) 92...Kf7 93.Bh4 1–0. Foisor,Sabina_Francesca (2255) – Padmini,Rout (2435), 1. FIDE World Online Women Blitz, 2015. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d5 6.e3 a5 7.b5 a4)

8.a3 c6 9.bc6 bc6 10.c4 Qd7 (10...Bf5 11.Ne5=) 11.Qc2 e6 (11...Qd6 12.Bd3+=) 12.Be2 Ng4 13.Qd3 (13.Rb1 Rd8+–) 13...Qd6 14.Bf1 (14.Rb1 Nd7+=) 14...Nh6 (14...Nd7 15.Qc2=) 15.Rb1 Bd7 (15...Nd7 16.Qc2+=) 16.Qe2 (better 16.Bc3 Na6 17.c5+–) 16...Be5?? (16...Nf5 17.c5 Qe7 18.Qd1+=) 17.h3 (better 17.Ne5 f6 18.Nd3+–) 17...Qa3?? (better 17...Bg7+–) 18.g4 (18.Ba3 Bg7 19.Bf8 Bf8+–) 18...Kh8?? (18...Qe7 19.Ne5 a3+–) 19.Nh4 (better 19.Ba3 Bg7 20.Bf8 Bf8+–) 19...Bc7?? (better 19...Qe7 20.de5 Qh4=) 20.Ndf3 (20.Ba3 Re8+–) 20...f5?? (20...Qa2 21.Rc1-/+) 21.Kd1 (21.Ba3 Rd8+–) 21...c5?? (better 21...Qb3 22.Qc2 Qc2 23.Kc2 fg4 24.hg4 Kg8–+) 22.e4 (22.Ba3 Bc6+–) 22...Qe3?? (22...Qb3!? 23.Kc1 fe4 24.Nd2–+) 23.Qd2 (23.Qe3 Nf7 24.gf5 a3 25.Ba3 Ba4 26.Ke1 ef5 27.Bc5 Re8+–) 23...cd4?? (23...Qd2 24.Nd2 de4 25.dc5 Kg8 26.gf5 ef5 27.Rg1–+) 24.c5 (better 24.Qe3 Nf7 25.Qd4 e5+–) 24...de4?? (better 24...Qd2 25.Nd2 fe4 (25...de4?! 26.gf5 Nf5 27.Nf5 gf5 28.Bd4 e5 29.Bc3–+) 26.Bd4 e5–+) 25.Bb5 (25.Qe3 Nf7 26.gf5 ef3 27.fe6 Ne5 28.Bd4 Nbc6+–) 25...Qg5 (better 25...Qd2 26.Nd2 Bb5 27.Bd4 e5 28.Be3–+) 26.Bc1 (26.Qg5 Nf7 27.Qe7 Kg8 28.Bd7 Bd8 29.Qe6 ef3 30.Ng6 Ra6+–) 26...Ba5?? (better 26...Qd2 27.Bd2 Kg7 28.Nd4 e5 29.Bd7 ed4–+) 27.Qa2 (better 27.Qg5 Ng8 28.Nd4+–) 27...Qh4?? (better 27...Qd8 28.Bh6 ef3 29.Bf8 Qf8 (29...Qh4? 30.Bd6 Bd8 31.Bd7 Nd7 32.Qe6+–) 30.Bd7 Nd7 31.Qe6 Qc5 32.Ng6 hg6 33.Qg6 Qe5–+) 28.Qa3 (28.Nh4 Ng8 29.Qa4 Bb5 30.Rb5 Nc6 31.Ra5 Na5 32.Qd4 Nf6+–) 28...Rd8 (better 28...ef3 29.Qf3 Ng4 30.hg4 Qg4 31.Qg4 fg4 32.Bd7 Nd7 33.Rb7–+) 29.Ke2 (29.Nh4 Bb5 30.Rb5 e3 31.Qa4 Nc6+–) 29...fg4 (better 29...d3 30.Kf1 ef3 31.Bh6 Qh6 32.Bd3 fg4 33.Qb2 Kg8–+) 30.Bb2?? (better 30.Nh4 Bb5 31.Rb5+–) 30...gh3 (better 30...gf3 31.Kd1 Qf2–+) 31.Ba6 (31.Nh4?? Bb5 32.Kd1 Bd3–+; 31.Bd4?! Kg8 32.Nh4 Bb5 33.Rb5 Rd4 34.Qh3 Nf7 35.Qe6 Nd7+–) 0–1. Houska,Jo (2400) – Griffiths,R (2355), 4NCL (5), 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 a5 7.b5 a4)

8.a3 Nbd7 9.c4 dc4 10.Bc4 Nb6=.

8.a3 Nbd7 9.c4 c5 10.Rc1 Qa5 11.Bc3 Qa7 (11...Qd8 12.Be2+=) 12.Be2 Ne4 13.Ne4 (13.Ba1 e6+=) 13...de4 14.Ng5 cd4 15.ed4 (15.Bd4 Bd4 16.Qd4 Qc5 17.Qc5 Nc5+=) 15...Nf6= 16.h4 h6 17.Nh3 e3 (17...Rd8!?=) 18.fe3+/- Ne4 19.Bb4 e5 (19...Re8 20.Bf3 Ng3 21.Rg1=) 20.Bf3 Ng3 21.Bf8 Kf8 22.Rg1 ed4 23.Nf4 (23.c5 Qa5 24.Kf2 de3 25.Kg3 Be5 26.Nf4 g5+=) 23...Nf5 (23...Qc5 24.Ne2 Ne2 25.Ke2 Qa3 26.ed4 Qe7 27.Kf1-/+) 24.Bd5 (better 24.e4!? Nh4 25.Qd3+=) 24...Ne3 25.Qf3 Nd5 (25...Qa5 26.Kf2 Qd2 27.Qe2 Ng4 28.Kg3 Qe2 29.Ne2=) 26.Nd5= Bf5 27.Kf2 (better 27.Qf4!? Re8 28.Kd1=) 27...d3-/+ 28.b6 (28.Ne3 Re8 29.Rce1 d2-+) 28...Qa5 (28...Bd4 29.Kf1 d2 30.Rd1-+ (30.ba7 dc1Q 31.Ke2 Qc2 32.Ke1 Re8 33.Qe3 Re3 34.Ne3 Bc3 35.Kf1 Bd3)) 29.Rgd1 (29.Qf4 Qc5 30.Kg3 Qa3-/+) 29...Qc5 (29...d2 30.Rc3 Bd4 31.Re3 Qc5 (worse 31...Be3 32.Qe3 Kg8 33.Rd2+/-) 32.Rd2 Qa3=+ (worse 32...Be3 33.Qe3 Qe3 34.Ne3+=)) 30.Kf1=+ Re8 31.Rd3 Be4 32.Qe3 (32.Qd1 Bb2 33.Rc2 Re5=) 32...Qd6 (better 32...Bg2 33.Kg2 Re3 34.Re3 Bb2-+) 33.Kg1 Bd3 34.Qd3 Qc5 35.Kh1? (better 35.Kf1-/+) 35...Qd6?? (better 35...Qf2 36.Rf1 Re1 37.Re1 Qe1 38.Kh2 Qh4 39.Qh3 Qc4-+) 36.Rf1= Qe5? (36...Qd8 37.g3=) 37.Qf3 (better 37.Qg6! Qe6 38.Qh5+-) 37...Qe6 38.Nc7 Qe7 39.Ne8 Ke8? (39...Qh4 40.Qh3 Qh3 41.gh3 Ke8+-) 40.c5! (40.c5 Qh4 41.Qh3 Qh3 42.gh3+-) 1-0. Nagy,Ga1 (2490) - Sieciechowicz,M (2385), Titled Tuesday 6th Oct, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

8.a3 Nbd7 9.Bd3 Nb6 (9...e5 10.de5 Ng4 11.Bd4+=) 10.0-0= Ne8 11.Rb1 Nd6 12.Qe2 Bf5 13.Rfc1 (13.Bf5 gf5 14.Bc3 Nbc4=) 13...Ne4 (13...Bd3!? 14.Qd3 Qd7+=) 14.c4= Nd2 (14...Nc4 15.Nc4 dc4 16.Rc4+=) 15.Nd2+= Bd3 16.Qd3 c6 (16...e6 17.c5 Nc8 18.Bc3+=) 17.bc6 bc6 18.c5 (18.h3 Bf6+=) 18...Nd7 19.f4 (19.e4 e6+=) 19...Qc7= 20.Bc3 Rfb8 21.Qc2 Qa7 22.Bb4 f6 (22...Qa6!?=) 23.f5+= gf5 24.Qf5 Nf8 25.Nf3 (25.Bc3 Qd7 26.Qf4 Rb1 27.Rb1 Ng6+=) 25...Qd7+= 26.Qc2 Qg4 27.Bd2 Qc8 (27...Rb1 28.Rb1 e5 29.h3+=) 28.Rb8 (28.Rb6 Qe6+/-) 28...Qb8 29.Rb1 Qc7 30.Rb4 Qa7 (30...Ne6 31.Ra4 Ra4 32.Qa4+/-) 31.Rb6 (31.Qb1 e5+–) 31...Rc8 (31...Qd7 32.Qb1+/-) 32.Qb2 Rc7 33.Ne1 (33.Qb1 Nd7 34.Rb4 Qa6+/-) 33...Nd7 34.Nd3 e5 (34...Nb6?? 35.cb6 Qb7 36.Nc5+–) 35.Bc3 (35.Rb4 Qa6 36.Qc2 Ra7+/-) 35...e4 (35...Bh6 36.Kf2+=) 36.Nf4 (36.Nf2 Bh6 (36...Nb6?? 37.cb6 Qb7 38.bc7 Qc7 39.Qb4+–) 37.Bd2 f5+= (37...Nb6 38.cb6 Qb8 39.bc7 Qb2 40.c8Q Bf8 41.Qe6 Kg7 42.Qd7 Kg6 43.Qg4 Kf7 44.Qh5 Kg7 45.Ba5+/-)) 36...Kf7 (36...Bh6 37.Rb4+=) 37.Be1 (37.Rb4 Bh6 38.Kf2+=) 37...Qa8? (better is 37...Bh6!?=) 38.Rb4+/- Ra7 39.Bg3 (39.Qe2 Nf8+–) 39...Bh6 40.Qe2 Rb7?? (better is 40...Bf4 41.Qh5 Kg7 42.Bf4 Qg8+–) 41.Qh5+– (41.Qh5 Kg8 42.Rb7 Qb7 43.Qh6+–) 1–0. Maia,Marco Aurelio Ferre (2135) – Carvalho,Renato (1860), IRT Cidade Maravilhosa CXG, 2010. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.a3 Bf5 9.c4 c6 10.Be2 Ne4 11.0-0 Nd7 12.Ne4 de4 13.Nd2 h5 14.bc6 bc6 15.Rb1 c5 16.d5 Ne5 17.Qc2 e6 18.Be5 Be5 19.de6 fe6 20.g3 Bh3 21.Rfd1 Rf2?? (better is 21...Rb8+/-) 22.Kf2+– Qg5 23.Qe4 (23.Ne4 Rf8 24.Kg1 Qe3 25.Kh1 Bf5+/-) 23...Rf8 24.Nf3 h4 (24...Qf6 25.Rb5+–) 25.Qh4 Qf5 (25...Qh4 26.gh4 Bf6 27.Kg3+–) 26.e4 g5 (26...Qg4 27.Qg4 Bg4 28.Rd7+–) 27.ef5 gh4 28.Ne5 1–0. Vorotnikov,V1 (2425) – Naumenko,O (2120), Chigorin Mem Classic Open, 2010.

8.Ba3 c6 9.Rb1 Re8 10.Be2 Nbd7 11.0-0 e5 12.bc6 bc6 13.Bd6 Ng4 14.c4 Ba6 15.h3 (15.Qa4? Bc4 16.Qd1 Be2 17.Qe2 ed4 (17...Ra2?! 18.de5 Nge5 19.Ne5 Ne5 20.Rb8-/+) 18.Nd4 Ne3 19.fe3 Bd4-+) 15...Nh6 16.Ne5 Ne5 17.Be5 Be5 18.de5 Re5 19.Nf3 (worse 19.Qa4 Bc4 20.Qd1 Be2 (20...Ba2?! 21.Rb2=) 21.Qe2 Ra2=+) 19...Re8 20.cd5 (worse 20.Qa4 Bc4 21.Qd1 Ba2=) 20...Be2 21.Qe2 Qd5 22.Rfd1 Qe4 23.Rbc1 Nf5 24.Rc4 Qe6 25.Qc2 a3 26.Rc6 Rec8 27.Rd8! (27.Re6 Rc2 28.Rb6 Ra2-/+) 27...Rd8 28.Re6 fe6 29.Ng5 Ng7 30.Qc7 Rf8 31.Qe7 Rad8 32.Ne4 (32.f4 h6 33.Nf3 Ra8+-) 32...Ra8 33.g4 Kh8 (33...Rfb8!?+/-) 34.Kg2 Kg8 35.Qh4 Ne8 36.Qe7 (36.Ng5!? Ra7+-) 36...Ng7+/- 37.Nf6 Kh8 38.Nd7 Rfe8? (better 38...Rfd8+/-) 39.Qh4+- h5 (39...Kg8 40.Nf6 Kf7 41.Nh7+- (worse 41.Ne8 Re8 42.Qg3 Kg8+-)) 40.Qg5 (40.Qg5 Rf8 41.Qg6 hg4 42.hg4+- (worse 42.Nf8 gh3 43.Kh3 Rf8+-)) 1-0. Sedlak,N (2585) - Goluch,P (2385), Najdorf Mem Open A, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.Ba3 c6 9.c4 Ne4 (9...Bf5!?+=) 10.Ne4+= de4 11.Nd2 f5 12.Be2 cb5 13.cb5 Be6 14.0-0 Nd7 15.Bc4 Bc4 16.Nc4 Nf6 17.Qd2 Nd5 Black prepares the advance f4 18.Rab1 Qd7 19.g3 Qe6 20.Rfc1 g5 Black prepares f4 21.Kh1 f4 22.gf4 Qh3 23.Rg1 (23.fg5 Qf3 24.Kg1 Rf5–+) 23...gf4 24.Ne5 (24.Rg2!? Rac8 25.Rbg1+=) 24...Kh8-/+ 25.Rg2 Be5 (25...fe3?! 26.fe3 Be5 27.de5 Ne3 28.Be7 Ng2 29.Bf8 Rf8 30.Qg2+=) 26.de5 Rg8 27.Rbg1 e6 28.Rg8 Rg8 29.Rg8 Kg8 30.Qc1 Nc3 31.Qg1 (31.ef4?? Qf3 32.Kg1 Ne2 33.Kf1 Nc1 34.Bc1 Qh1 35.Ke2 Qc1–+) 31...Kf7 32.Bb2 (32.ef4 Ne2 33.Qg2 Qd3–+ (33...Qa3?! 34.Qe4 Qc1 35.Kg2 Qg1 36.Kh3 Qf1 37.Kg4–+)) 32...fe3 33.Bc3 (33.fe3 Na2 34.Qf2 Qf5 35.Kg1–+) 33...Qf3 34.Qg2 ef2 0–1. Mohota,N (2275) – Vaishali,R (2275), 42nd ch–IND w Chall, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Ba3 c6 9.bc6 Nc6 10.Bd3 Re8 11.0-0 e5 12.de5 Ng4 13.Rb1 Nge5 14.h3 Nd3 15.cd3 Bf5 16.Rb7? (better 16.Qe2 b6 17.Rfc1=) 16...Bd3-+ 17.Re1 Na5 (better 17...Qc8!? 18.Rb2 Bb2 19.Bb2 Nb4-+) 18.Rb4=+ Bc3 19.Ra4 Nc4 (19...Bb5 20.Rb4 Bb4 21.Bb4=+) 20.Nc4 (better 20.Bc1=) 20...Be1?? (better 20...dc4 21.Bc5 Be1 22.Ne1 Ra4 23.Qa4 Qa8-/+) 21.Nd6+- Ra4 22.Qa4 Re6 (22...Bf2 23.Kf2 Re6 24.Qf4+-) 23.Ne1 Be2 (23...Bc4 24.Nc4 Re4 25.Bb2 Rc4 26.Qb3+-) 24.Qc2 (24.Qf4 Qc7+-) 24...Ba6 (24...Bc4 25.Nc4 Rc6 26.Qd2 Rc4 27.Bb2+-) 25.Qc6 (better 25.Qc5 Bc4 26.Nf3 h6+-) 25...Bc8 (25...Bc4+-) 26.Nf3 (worse 26.Qc8 Rd6 27.Qc3 Rb6+-) 26...Bd7 27.Qd5 Qb8 (27...h6 28.e4+-) 28.Nd4 (better 28.Nf7!? Qb1 29.Kh2 Qb8 30.N3e5 h6 31.Nh6 Kh8+-) 28...Qb1 (28...Re7 29.N6f5 Bf5 30.Be7+-) 29.Kh2 Rf6 (29...Qb8 30.Ne6 Be6 31.Qe5+-) 30.Ne4 (30.Qa8 Kg7 31.Ne4 Qb8 32.Qb8 Be8 33.Qb4 Kh6 34.Qf8 Kh5 35.g4 Kh4 36.Qh6) 30...Qb8 31.Bd6 Qd8 (31...Rd6 32.Nd6 Qf8+-) 32.Nf6 Qf6 33.Bg3 (33.Bg3 Qe7 34.Qd6 Qd6 35.Bd6+-; 33.Qa8 Qd8 34.Qd8 Be8 35.Qe8 Kg7 36.Bf8 Kf6 37.Qe7) 1-0. Injac,Teodora (2315) - Allahverdiyeva,Ayan (2085), Titled Tuesday 9th Mar, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.Ba3 Nbd7 9.c4 Re8 10.Be2 e5 11.0-0 e4 (11...Ne4 12.Rc1+= (12.cd5? Nc3 13.Qe1 ed4–+)) 12.Ne1 (12.Ng5 Nf8+=) 12...Nf8 (12...dc4!? 13.Nc4 Nd5+=) 13.Nc2= Bf5 (13...Bd7 14.Rb1=) 14.Nb4+= h5 15.Nd5 (15.cd5 Nd5 16.Nd5 Qd5+=) 15...Nd5 16.cd5 Qd5 17.Qc2 Ne6 18.Qc4 (18.Rac1 h4+=) 18...Qd8 (18...Red8 19.h3+=) 19.Rac1+= Qg5 20.Rfd1 c6 (20...Rac8 21.d5 Nf8 22.Qa4+/-) 21.bc6 bc6 22.Kh1 (22.g3 Qd8+/-) 22...Rec8 (22...Rad8 23.Qc6 h4 24.d5+/- (24.Ne4?! Be4 25.Qe4 Nd4+=)) 23.Qc2 Qh4 (23...Bd4 24.Ne4 Bg7 25.f4+/-) 24.g3 Qd8 25.Nc4 (25.Ne4 Qd5 26.f3 Ng5+–) 25...Ng5 26.Bc5 (26.Ne5 Bh3+=) 26...Rcb8 (26...Bh3+/-) 27.Nd6 (27.h4 Nf3+/-) 27...Bg4 (27...Bh3!?=) 28.h4+= Nf3? (better is 28...Be2!? 29.Qe2 Nf3 30.Ne4 Nh4+/-) 29.Qe4 (29.Bc4 Qf6 30.Ne4 Qf5+/-) 29...Qf6 (29...Ng5 30.hg5 Be2 31.Rd2+/-) 30.Rc2 (30.Qc6 Bf8 31.Qd5 Bd6 32.Bd6 Rd8+–) 30...Rd8? (better is 30...Bf8!?+/-) 31.Kg2+– (31.Qc6 Bf8+=) 31...Rd6? (better is 31...Bf8 32.Bf3 Qf3 33.Qf3 Bf3 34.Kf3 Bd6+–) 32.Bd6 (32.Bf3?! Bf5 33.Qf4 Bc2+=) 32...Bf5 33.Qf3 (better is 33.Qc6 Rc8 34.Qc8 (34.Bf3?! Rc6 35.Rc6 Bh3 36.Kh3 Qf3+=; 34.Qf3?! Rc2 35.e4 Qd6 36.ef5 gf5+/-) 34...Bc8 35.Rc8 (35.Bf3?! Bh3 36.Kh3 Qf5 37.Kg2 Qc2+=) 35...Kh7 36.Rc6+–) 33...Qe6 (33...Bc2 34.Qc6 Qd8 35.Qc2 Qd6+–) 34.Bd3 Bg4 (34...Bd3 35.Rd3 Qd6 36.Rc6 Qf8+–) 35.Qc6 Rd8 36.Bc7 (36.Bc7 Bd1 37.Bd8 Bc2 38.Qe6 fe6 39.Bc2+–) 1–0. Voloshin,Leonid (2400) – Miesbauer,Jan (2235), Czech Championship, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 a5 7.b5 a4)

8.Ba3 Nbd7 9.Bd3 Re8+=.

8.Ba3 Nbd7 9.Be2 Re8 10.0-0 e5 11.Ne5 Ne5 12.de5 Re5 13.Rc1 Re8 14.Bb2 c5 15.bc6 bc6 16.c4 Qd6 17.Bd4 h6 18.cd5 cd5 (worse is 18...Qd5 19.Bf3 Qa2 20.Bc6+– (20.Rc6?! Ra6+/-); worse is 18...Nd5 19.Nc4 Qe7 20.Bf3 Bd4 21.ed4+=) 19.Bc5 ½–½. Sundararajan,Kidambi (2520) – Tyomkin,Dimitri (2545), Canadian op Edmonton, 2005. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Ba3 Nbd7 9.Be2 Re8 10.Rc1 e5 11.Ne5 Ne5 12.de5 Re5 13.Nf3 Re8 14.Bb2 c5 15.bc6 (15.c4 Be6=) 15...Qa5 16.Qd2 Qd2 17.Nd2 bc6 18.c4 Be6 19.Bd4 Rec8 20.Bf3 Nd7 (20...Ng4 21.Bg4 Bg4 22.h3=+) 21.Bg7 Kg7 Black gets the initiative 22.0-0 (22.cd5 cd5 23.Ke2 Ne5=+) 22...Rab8 (22...Ne5 23.Be2=+) 23.Bd1 (23.Rfd1 Ne5 24.Be2 dc4 25.Nc4 Bc4 26.Bc4 Rb2=) 23...Nc5 (23...Rb2!? 24.cd5 Bd5-/+ (worse 24...Rd2 25.de6 fe6 26.Ba4+–)) 24.cd5=+ cd5 25.Nf3 (25.a3 Bf5=+) 25...Rb2 26.Rc5? (better 26.Rc2 a3 27.Nd4-/+) 26...Rc5–+ 27.Ba4 Ra2 28.Bb3 Rb2 29.Nd4 Rc3 30.Bd1 Rc1 31.Be2 Rbb1 32.f3 Rf1 33.Bf1 Rb2 (33...g5 34.g4–+) 34.Be2 Bc8 35.h3 Kf6 36.Kh2 Ra2 37.Bd1 Ke5 38.Bc2 Ra3 39.f4 Kf6 40.Bb3 Ra5 (40...Ba6 41.Bd5 Re3 42.Nf3–+) 41.Kg3 (41.g4 h6–+) 41...Ba6 42.Bd1 (42.Kf2 Bc4–+) 42...Ra3 (42...Bd3 43.Bb3–+) 43.Kf2 Ke7 (43...h5 44.Bf3 Ra2 45.Kg3–+) 44.h4 (44.Bf3 Ra2 45.Ke1 Kd6–+) 44...Bd3 45.Bf3 (45.g4 Be4–+) 45...Be4 (45...Ra2 46.Kg3 Be4 47.Be2–+) 46.Be4 (46.g4 Ra2 47.Kg3 h5–+) 46...de4 47.g4 Ra2 48.Kg3 Kd6 49.Nb5 (49.f5 Rd2–+) 49...Ke6 50.Nd4 Kd5 51.h5 (51.Nb5 Kc4 52.Nd6 Kd3 53.Nf7 Ke3–+) 51...Ra3 (51...Rd2 52.hg6 hg6 53.Nb5–+) 52.hg6 hg6 (52...Re3?! 53.Kf2 Ra3 54.g7 (54.gh7? Rh3 55.Nf5 Rh7–+) 54...e3 55.Ke2=) 53.Kf2 Kc4 (53...Ra2 54.Kg3–+) 54.Nc6 f6 55.g5 (55.Ne7 Ra2 56.Kg3 Re2 57.Ng6 Re3 58.Kg2 Rb3–+) 55...Ra6 56.Ne7 (56.Nb8 Ra2 57.Kg3 fg5 58.fg5 Kd3–+) 56...fg5 57.fg5 Re6 58.Ng8 Re5 (better 58...Kd3!? 59.Nh6 Re5 60.Ke1–+) 59.Kg3 Kd3 (59...Kd3 60.Kf4 Rf5 61.Kg4 Ke3–+; 59...Rg5?! 60.Kf4 Rg1 61.Ke4–+) 0–1. Spyropoulos,Nikolaos (2165) – Lazov,Toni (2310), 11th Triandria Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Qc1 c6 9.Rb1 Bf5 10.Ba3 Re8 11.Bd3 Ne4 12.c4 (12.bc6 bc6 13.Rb7 Na6=) 12...Nd7 (better is 12...Nf2!? 13.Kf2 Bd3 14.bc6 Nc6 15.Rb7 dc4–+) 13.bc6= bc6 14.0-0 (better is 14.Qc2=) 14...Ng3!-/+ 15.Bf5? (15.fg3 Bd3 Discovered attack; 15.hg3 Bd3 Discovered attack) 15...Ne2–+ (15...Nf5 16.cd5 cd5 17.Qc6+=) 16.Kh1 Nc1 17.Bd7 Qd7 18.Rfc1 Rab8 19.Kg1 f6 20.Kf1 e5 21.h3 e4 22.Ne1 f5 23.g3 g5 24.Ng2 Bf8 25.Bf8 Rf8 26.h4 h6 27.hg5 hg5 28.Ke2 Kg7 29.Kd1 Rb1 30.Rb1 Rh8 31.Nf1 dc4 32.Kc2 c5 33.Rd1 Rb8 34.dc5 Rb2! 35.Kb2 Qd1 36.c6 Qf1 37.c7 c3! 38.Ka3 Qc4 (38...Qc4 39.Ne1 c2 40.Nc2 Qc2–+; 38...Qg2?! 39.c8Q Qf2 40.Qc3 Kh7 41.g4 fg4 42.Qc7 Kg6 43.Qc6 Kh5 44.Qe8 Kh4 45.Qe4-/+) 0–1. Simonyi,Z (2225) – Levay,S (2270), Lakitelek HUN, Open, 2011.

8.Rc1 c6 9.c4 cb5 10.cb5 Bf5 11.Be2 Nbd7 12.0-0 Ne4 13.Ne4 de4 14.Nd2 Be6 15.Bc4 Bc4 16.Nc4 Nb6 17.Nb6 Qb6 18.Ba3 Qb5 19.Be7 Rfc8 20.Bc5 Qd7 21.Rb1 Bf8 (21...Qd5 22.Qe2=) 22.Bf8+= Kf8 23.Qd2 Kg8 24.Rb4 Rc7 25.h3 Ra6 (25...Rac8 26.Qb2=) 26.d5 (26.a3!?+=) 26...Rc5 27.Rd1 Rd6 28.Rd4 b6 29.a3 f5 30.Qb2 b5 (30...Rdd5?? 31.Rd5 Rd5 32.Qa2+–; 30...Rcd5?? 31.Rd5 Rd5 32.Qa2+–) 31.h4 Kf7 (31...Rdd5?? 32.Rd5 Rd5 33.Qa2+–; 31...Rcd5?? 32.Rd5 Rd5 33.Qa2+–) 32.R4d2 Rcd5 (32...Qd8 33.Rd4=) 33.Qa2+= Ke6 34.f3 (34.f4 Qc6 35.Rd4 Qc4 36.Rc4 Rd1 37.Kh2 bc4 38.Qc4 Kf6 39.Qa4 R1d2+=) 34...Qc6=+ 35.fe4 fe4 36.Rd4 Ke5 37.Qf2 Rd4 38.ed4 Kd5 39.Qf4 Re6 (39...Ke6!?=) 40.Qg5+= Kd6 41.d5 Qc5 Black plans e3 42.Kh1 Re8 43.Qf6 Kd7 44.d6 e3 (44...Qa3?? 45.Qf7 Re7 46.Qe7 Kc6 47.Qc7) 45.Qf7 Kd8 46.d7 Rf8 47.Qe6 g5?? (better 47...e2 48.Qe2 Qc4+– (48...Qa3 49.Qb5 Kc7 50.Qc4 Kb7 51.Rb1 Qb3 52.Qd5 Kc7 53.Rc1 Kb6 54.Qd6 Ka7 55.Rc7 Qb7 56.Rb7 Kb7 57.Qf8 Kc6 58.d8Q Kb5 59.Qd5 Ka6 60.Qe7 a3 61.Qeb7)) 48.Qe4+– Qa7 49.Qc6 Qb8 (49...Qc7 50.Qa8 Ke7 51.Qf8 Kf8 52.d8Q Qd8 53.Rd8 Ke7+–) 50.Qc5 Rg8 51.Qe3 gh4 52.Qe6 Rf8 53.Rc1 (53.Rc1 Qc7 54.Rc7 Kc7 55.Qe8 Re8 56.de8Q+– (56.de8N?? Kc6 57.Kh2 b4 58.ab4 a3 59.b5 Kb6–+; 56.de8B?! Kb6+–)) 1–0. Annaberdiev,M (2500) – Srinath,R (2355), FSGM July, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Rc1 c6 9.c4 dc4 10.bc6 (better is 10.Bc4!? cb5 11.Bb5=) 10...b5+= (worse is 10...Nc6 11.Bc4 a3 12.Bc3+=) 11.Ne5 Qc7 12.Qf3 Ra6 (12...Be6 13.e4 Ne8 14.Qg3 Be5 15.de5 Nc6 16.a3-/+) 13.Ndc4 (13.d5 Bf5+=) 13...bc4+= 14.Bc4 Rb6 15.Ba3 Nc6 16.Nc6 Rc6 17.Qc6 Qc6 18.Bf7 Rf7 19.Rc6 Bb7 20.Rc4 Bg2 21.Rg1 Bd5 22.Ra4 Ne4 23.Rf1 Bf6 24.Rb4 Bh4 25.Ke2 Nf2 26.Bb2 e6 27.a4 Kg7 28.e4 Ne4–+ 29.Rf7 Kf7 30.a5 Be7 31.Rb8 Bh4 32.Rb4 Be7 33.Rb8 Nf6 34.Bc3 Bd6–+ 35.Rb2 Bh2 36.a6 Ne8 37.Ke3 Bg3 38.Ba5 Bc7?? 39.Bb4 Bd6 40.Ba5 Bc7 41.Bb4 Nf6 42.a7 Nd7 43.Bc5 g5–+ 44.Rb5 Bc6 45.Rb2 h5 46.Rf2 Kg6 47.Rc2 Bd5 48.Be7 Bf4 49.Kf2 Nb6 50.Rb2 Na8 51.Rb8 h4 52.Rh8 Kf5 53.Rh7 Kg4 54.Bf6 h3 55.Be5 h2 56.Bf4 h1Q 57.Rh1 Bh1 58.Bd6 Nb6 59.Be7 Nc4 60.Bd8 Bd5 0–1. Zhang Ziyang (2420) – Li Shilong (2510), 4th All China Games Rapid, Hefei CHN, 2010.

8.Rc1 c6 9.c4 dc4 10.bc6 b5 11.Ne5 Nd5 12.Ndf3 (12.Ndc4 bc4 13.Bc4 Qc7-+) 12...Nb4 (12...a3!? 13.Ba1-+) 13.a3-/+ N4c6 14.Nc6 (14.h4 h5-/+) 14...Nc6-+ 15.Be2 Bb7 16.0-0 Na5 17.Qc2 Qd5 18.Rfd1 (18.Bc3 Nb3 19.Rcd1 Ra6-+) 18...Nb3 19.Rb1 Qe4 20.Qc3 Qf5 (20...Nd4 21.ed4 Qe2 22.Re1-+) 21.Nd2 (21.Nh4 Qe6 22.Bf3 Be4 23.Be4 Qe4-+) 21...Rac8 22.Bf1 (22.Nf1 h5-+) 22...Nd2 (22...Rfd8!? 23.f3-+) 23.Qd2 Rfd8 (23...Be4 24.Rbc1-/+) 24.Bc3-/+ Bc6 (24...Be4 25.Rb2-/+) 25.Qb2 (25.f3 Qg5 26.Qf2 e6-/+) 25...Qd5 (25...e6 26.f3-+) 26.Rd2 (26.f3 Rd7-/+) 26...Qg5 27.Rbd1 (27.Re1 Be4-/+) 27...h5 (27...Be4 28.g3-+) 28.h3 (28.f4 Qf5-+) 28...h4 (28...Rd7 29.Qc2-+) 29.Re1 (29.f4 Qf5-+) 29...Be4 (29...e6 30.Rc2-+) 30.Kh1 (30.f4 Qd5-/+) 30...e5 (30...e6 31.Rdd1-+) 31.de5? (better 31.d5 Rd5 32.Rd5 Bd5 33.Qb5-/+) 31...Rd2-+ 32.Qd2 Be5 33.Rd1 Bc3 34.Qc3 Rd8 35.Rc1 (35.Rd4 Rd4 36.ed4 Qf5-+) 35...Qe7 (35...Rd3!? 36.Qa5 Ra3 37.Rc4-+) 36.Be2 Qd7 (better 36...Rd7-+) 37.f3? (better 37.Kg1-+) 37...Bd3 38.Rd1 (38.Bd1 Qe7-+) 38...Qe7 (38...Be2 39.Rd7 Rd7 40.Qb4+/-) 39.Bd3 Qe3 (39...cd3?! 40.e4-+ (40.Rd3?? Rd3 41.Qd3 b4-+); 39...Rd3 40.Rd3 cd3 41.Qd3-+) 40.Re1 (40.Qb4 Rd3 41.Re1 Qd2-+) 40...Qd3 41.Qf6 (41.Qe5 c3 42.Re4 Qd1 43.Kh2 Qd6 44.Qd6 Rd6-+) 41…c3 (41...c3 42.Re7 Qc4-+) 0-1. Jianu,V (2525) - Petkov,Momchil (2425), European Hybrid Qual, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

8.Rc1 c6 9.bc6 bc6 10.c4 Nbd7 11.Be2 Ne8 (11...Ba6 12.0-0+=) 12.0-0+= Nd6 13.Ba3 Ba6 (13...Ne4 14.Ne4 de4 15.Nd2+=) 14.cd5 cd5 15.Bd6 ed6 16.Rc6 Bb7 17.Rc2 (worse is 17.Rd6 Qe7 18.Rd7 Qd7+=) 17...Qa5 18.g3 (18.Qa1 Rfc8 19.Rfc1 Rab8+/-) 18...Nf6 19.Rb2 Ba6 20.Ba6 Ra6 (20...Qa6 21.Qb1+=) 21.Qc2+/- Raa8 22.Qc6 a3 23.Rb3 (23.Rc2 Ra6 24.Qc3 Qc3 25.Rc3 Ne4+=) 23...Rfc8+= 24.Qd6 Ra6 (24...Ne4 25.Ne4 de4 26.Ne5 Be5 27.de5=) 25.Qe7 (25.Qf4!?+/-) 25...Bf8+= 26.Qb7 Rc7 27.Qb8 Rc2 28.Rb7 Ra8 (28...Rd2?? 29.Nd2 Ra8 30.Qf4+–) 29.Qf4 Qa6 (29...Qd8!?=) 30.Rfb1+/- Qd6 (30...Ra2?? 31.R1b6 Qd3 32.Kg2+– (32.Rf6 Rb2 33.Rfb6 Qf5 34.Qf5 gf5 35.Rb2 ab2 36.Rb2 Ra5+–)) 31.Ne5 Ra6 (31...Rd2? 32.R1b6 Qd8 33.Nf7+– (33.Qf6?! Qf6 34.Rf6 Ra2 35.Rff7 Rc2=; 33.Rf6 Qe8 34.Rff7 Rb2+–)) 32.Ndf3 Qe6 (32...h6 33.Qh4 Ne4 34.Nf7+/-) 33.Nf7 (33.Ng5 Qe8 34.Ngf7 Be7+–) 33...Rb2 (33...Ng4 34.h3 Nf6 35.Nh6 Kh8+–) 34.N7g5 (34.R1b2 ab2 35.Nh6 Bh6 36.Qh6 Qd7 37.Rb2 Qc8+–) 34...Rb1? (34...Qc8 35.Qb8 Qb8 36.Rb8 h6 37.R1b2 ab2 38.Rb2 hg5 39.Ng5 Ne4 40.Ne4 de4+/-) 35.Rb1+– Qf5 (35...Qc6 36.Ne5 Qc7 37.Rb5+–) 36.Qf5 gf5 37.Ne1 (37.Ne5 Ne4 38.Ne4 de4+–) 37...Ne4 38.Ne4 fe4 39.Kf1 Rc6 40.Ke2 Kf7 41.f3 Bd6 (41...ef3 42.Kf3 Be7 43.Rb7+–) 42.fe4 de4 43.Rb7 Be7 44.d5 Rd6 45.Nc2 (45.Rb5 Rh6 46.h4 Bd6+–) 45...Rd5+/- 46.Na3 (46.Nd4 Kf6+/-) 46...Ra5+= 47.Nc4 Ra2 48.Nd2 Ke6 49.Rb5 Bf6 50.Kd1 Ra1 51.Kc2 Ra2 52.Kd1 Ra1 53.Rb1 Ra4 (53...Kd5 54.Ra1 Ba1 55.Nb1+=) 54.Rc1 Kd5 55.Rc2 Be5 56.Ke2 Rb4 57.Ra2 h5 58.Nf1 (58.Ra5 Ke6+=) 58...Ke6 59.Kf2 h4 (59...Kd5!?+=) 60.gh4+/- Rb8 (60...Kf5 61.h5+/-) 61.Kg2 (61.Ra4 Rb2 62.Kg1 Kd5+–) 61...Rh8+/- 62.Ra6 Kd5 63.Kh3 Kc4 (63...Rf8 64.Ra5 Ke6 65.Nd2+–) 64.Re6 (better is 64.Ng3!? Rc8+–) 64...Kd5+/- 65.Rg6 Rf8 66.Kg2 Rb8 67.Rg4 Rb2 68.Kg1 Rb1 69.Rg2 Bf6 70.h5 Ke6 (70...Ra1 71.h6+–) 71.Rg4 Kf5 (71...Kd5+–) 72.Rf4 Ke5 73.h4 (better is 73.h6!?+–) 73...Bg7+/- 74.Kg2 Rb2 75.Rf2 Rb3 76.Kg3 (76.Nh2 Ke6 77.Ng4 Be5+–) 76...Bh6+/- 77.Kg4 (better is 77.Re2+/-) 77...Rb8? (better is 77...Be3 78.Rf5 Kd4+/-) 78.Rf5+– Ke6 79.Ra5 (79.Rg5 Bg5 80.hg5 Ke5+–) 79...Rg8 (better is 79...Rf8!? 80.Ra6 Ke5 81.Rh6 Rf1+–) 80.Rg5!+– Rf8 (80...Bg5 81.hg5 Passed pawn) 81.Rg6 (better is 81.Ng3!? Bg5 82.hg5 Ke5+–) 81...Ke5 82.Rh6 Rf1 83.Ra6 Rg1 84.Kh3 Kf5 (84...Re1 85.Ra5 Kf6 86.Ra3+–) 85.Rg6! Rh1 (85...Rg6 86.hg6 Passed pawn) 86.Kg3 Rg1 87.Kf2 Rh1 88.Rg5 Kf6 (88...Ke6 89.Kg3 Rf1 90.h6+–) 89.Rg4 (better is 89.Kg3!? Rg1 90.Kf4 Rh1+–) 89...Kf5 90.Rf4 Ke5 91.h6 Ra1 92.h7 Ra8 93.Kg3 Rh8 94.Rf7 Ke6 95.Ra7 Kf5 96.Kh3 Kg6 (96...Rc8 97.h5+–) 97.Kg4 Rf8 98.Re7 Kh6 (98...Kf6 99.Rc7+–) 99.Re4 (99.Rf7! Re8+–) 99...Kh7 100.Re5 Rf1 101.Re7 Kh6 102.Re6 Kh7 103.e4 Rg1 104.Kh5 Kg7 105.e5 Re1 106.Rg6 Kh7 (106...Kf8 107.e6+–) 107.Rg5 Re2 108.Kg4 Re4 (108...Kh6 109.Kf5 Rf2 110.Ke6+–) 109.Kg3 (better is 109.Kf5 Rh4 110.e6 Rb4+–) 109...Kh6 110.Rf5 (better is 110.Kh3!? Rb4 111.Rg4 Rb3 112.Kg2+–) 110...Kg6 111.Rg5 Kh6 112.Kf3 Rh4 113.Rg2 Ra4 114.Rg4?? (better is 114.e6 Kh7 115.Re2+–) 114...Rg4= 115.Kg4 Kg6 116.Kf4 Kf7 117.Kf5 Ke7 118.e6 Ke8 119.Kf6 Kf8 ½–½. Antonova,Nadezhda (1955) – Salim Mohammed Salim Al Amri (2035), Asian Nations Cup, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Rc1 c6 9.bc6 Nc6 10.c4 Bf5 11.Ba3 Qa5 12.cd5 Nb4 (12...Qd5 13.Bc4 Qa5 14.0-0=) 13.Bb4 (13.Rc5 Qc5 14.dc5 Nc2 15.Qc2 Bc2 16.Bc4=) 13...Qb4= 14.Nh4 (14.Rc5 Qb2 15.Rb5 Qa2=) 14...Bg4 (14...Be4 15.Rc4 Qa5 16.Rc5=) 15.Be2 (15.Rb1 Qa5 16.Nhf3 Qd5+=) 15...Be2 16.Qe2 Nd5 17.0-0 (17.Rb1 Qa3 18.Ne4 Rfc8=+) 17...Nc3 18.Qd3 Rfc8 (worse 18...Na2 19.Rc2 e5 20.Ra2 ed4 21.e4+–) 19.Rc2 e5 20.Nhf3 (better 20.de5!? Be5 21.Nhf3=+) 20...ed4-/+ 21.Kh1 (21.ed4 Ne2! 22.Kh1 Nd4-/+) 21...de3–+ 22.fe3 Rd8 23.Nd4 Nd5 (23...Bd4 24.ed4 Qd4–+) 24.Ne4 (24.N2f3!?-/+) 24...Qe7–+ 25.Re2 Re8 (25...Rac8 26.Ree1–+) 26.Ng3 Rad8 27.Rfe1 h5 (27...Qb4 28.Nc2 Qc3 29.Qb5–+) 28.h3 (28.Nf1 Qc5–+) 28...Qg5 (28...Qh4 29.Nf1–+) 29.Nf1 Ne3 30.Nf3? (30.Qb5 Qb5 31.Nb5–+) 30...Qg2! (30...Rd3?! 31.Ng5 Bd4 32.Nf3–+) 31.Rg2 Rd3 32.Rd2 Rd2 33.N3d2 Bc3 (33...Bc3 34.Re3 Re3 35.Ne3 Bd2–+) 0–1. Zanan,E (2490) – Smirin,I (2590), 19th ch–EUR Indiv, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 a5 7.b5 a4)

8.c4 a3 9.Bc3 dc4 10.Bc4+= Nd5 (10...Nbd7 11.0-0=) 11.Rc1 (11.Qb3 Nc3 12.Qc3 c5+=) 11...Nc3 12.Rc3 c5 13.Qc1 (13.bc6 Nc6 14.Qc1 e5+=) 13...cd4 14.ed4 (better is 14.Ra3 Ra3 15.Qa3=) 14...Qa5? (better is 14...Bd4 15.Rd3 e5=) 15.Bf7!+– Kf7 (15...Rf7 16.Rc8 Discovered attack (16.Rc8 Deflection; 16.Rc8 Overloading); 15...Kf7 16.Ne5 Double attack (16.Rc8 Discovered attack)) 16.Ng5 (16.Rc8?! Qb5 17.Rc5 Qb4+=) 16...Kg8 17.Rc8 Qb5 18.Ne6 Nc6 19.Rf8 (19.Nc7 Rac8 20.Nb5 Nd4+=) 19...Rf8+= 20.Nf8 Kf8 21.Qc4 (21.h4 Qb2 22.Qb2 ab2+=) 21...Qb2= The pressure on the isolated pawn grows 22.Ke2 (better is 22.Nb3 Qb1 23.Nc1 Qe4 24.Kf1 Bd4 25.Nd3=) 22...Nd4-/+ 23.Kd3 b5 24.Qc8 Kf7 25.Re1 (better is 25.Qc5 Qa2 26.Rb1–+) 25...Bf6?? (better is 25...Qa2 26.Rc1 Bh6–+) 26.Ne4+= Nf5 (26...Qb4 27.Qc3 Nc2 28.Qb4 Nb4 29.Kd2+/-) 27.Nf6 Qf6 28.Qc5 Qa6 (28...Qh4 A) 29.Qa3?! Qc4 30.Kd2 Qf4 31.Kd1 Qd4 32.Ke2 Qc4 33.Qd3 Nd4 34.Kd2 Qa2 35.Kd1 Qa1 (35...Qf2?? 36.Rf1 Qf5 37.g4 Qf1 38.Qf1 Ke6 39.Qe1 Kd7 40.Qe5+–) 36.Kd2 Qb2 37.Kd1 Qa1 (37...Qf2?? 38.Rf1 Qf5 39.g4 Qf1 40.Qf1 Ke6 41.Qh3+–) 38.Kd2 Qb2 39.Kd1 Qa1= (39...Qf2 40.Rf1 Qf5 41.g4 Qf1 42.Qf1 Ke6 43.Qe1 Kd7 44.Qh4+–); B) 29.h3+/-) 29.Qd5 Kf8 30.Qd8 Kf7 31.Qd5 Ke8?? (better is 31...Kf8!?=) 32.Qg8 (32.Re5 Qd6+–) 32...Kd7+/- 33.Qd5 (33.Qh7?! b4 34.Kd2 Qd6 35.Ke2 Qa6 36.Kd2 Qd6 37.Ke2 Qa6 38.Kd2=) 33...Ke8 34.Qg8 (34.Re5 Kf8 35.Qb5 Qa7+–) 34...Kd7 35.Qd5 (better is 35.Re5!?+/-) 35...Ke8= 36.g4 ½–½. Jeanne,M (2210) – Colin,V (2395), 15th Sautron Open, 2015. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.c4 a3 9.Bc3 Ne4 10.Ne4+= de4 11.Nd2 f5 12.Qb3 e5 Black prepares f4 13.c5 Kh8 14.d5 Nd7 15.Bb4 Nf6 (15...Re8 16.Nc4 Nf6 17.Rd1+/-) 16.Bc4+/- f4 (16...c6 17.dc6 bc6 18.b6+/-) 17.c6 b6 (17...Re8 18.Ba3 Bh6 19.h4+/-) 18.h3 (18.Bf8 Bf8 19.0-0-0 Ng4 20.Ne4 Bf5+-) 18...Bf5 (18...Re8 19.Ba3 Bf8 20.Bf8 Rf8 21.a4+/-) 19.Ba3 (19.Bf8 Bf8 20.g4 fg3 21.fg3 Nh5+-) 19...Ra3 (19...Re8!?+-) 20.Qa3 Ne8 (20...Nd5 21.0-0-0 Bh6 22.Rhe1+-) 21.Be2 (21.g4 fg3 22.fg3 Qg5+-) 21...Qg5 (21...Qd5 22.Rd1+-) 22.Rg1 (22.Rh2 h6+-) 22...Nf6 (22...Nd6 23.g4 Bc8 24.Qc3+-) 23.d6 (23.Bc4!? Qh4 24.g4 fg3 25.Rg3 Nh5+-) 23...cd6 24.g4 (24.Qd6 fe3 25.Nf1 ef2 26.Kf2 e3 27.Ke1 Qf4-/+) 24...d5? (better 24...Be6+-) 25.0-0-0 (better 25.h4 Qh4 26.gf5+-) 25...Be6 26.Kb1 (26.ef4 ef4 27.Qd6 Re8+/-) 26...Qh4+= 27.g5 (27.Rdf1 Qh3 28.Rh1 Qg2 29.ef4 Bg4 30.Bg4 Qg4 31.fe5 Ne8+-) 27...Ne8= 28.Qe7 (better 28.Rdf1 f3 29.Bd1=) 28...Bg8?? (better 28...Bh3 29.Nb3 Qf2=+) 29.Rdf1+/- f3 30.Bd1 d4? (30...Qh3 31.Bb3 Qc8 32.Qa7+=) 31.Bb3 (better 31.Qd7!?+-) 31...Bb3+/- 32.ab3 Qh3 (32...de3 33.fe3 Qh3 A) 34.Ne4?! Qf5 35.Qb4 Nd6 36.Rf3 Qf3 (36...Qe4?? 37.Qe4 Ne4 38.Rf8 Bf8 39.c7+-) 37.Nd6 Qe3=+; B) 34.Rh1+-) 33.Nc4 (33.Ne4 Qf5 34.c7 Qe4 35.Kb2 Nc7 36.Qc7 de3 37.fe3 Qe3-+) 33...Qc8 34.Rh1 de3 (34...Nc7 35.Nd6 (35.Nb6?! Qb8 36.Qc5 Re8+-) 35...Qe6 36.Qe6 (36.Qc7 Qb3 37.Kc1 d3 38.Qg7 Kg7 39.Ne8 Kg8 40.Nf6 Rf6 41.Kd2 Qc2 42.Ke1 Qe2) 36...Ne6 37.Ne4+-) 35.fe3 (worse 35.Nb6 Qb8 36.Qe6 Bf6+-) 35...Nc7 (35...Qc7 36.Qe6 Qf7 37.Qf7 Rf7 38.Rh4+-) 36.Rd1 (36.Nd6 Qe6 37.Qe6 Ne6 38.Ne4 Nc7+-) 36...f2 37.Nd6 Qa8?? (37...Qe6 38.Qe6 Ne6 39.Ne4 Rf3+-) 38.Nf7 (worse 38.Qc7 Qa3 39.Kc2 Qa2 40.Kc3 Qe2+-) 38...Kg8 39.Rd7 (39.Qc7 Qa3 40.Kc2 Qc5 (40...Rf7 41.Qb6 Qe7 42.Qd8 Bf8 43.Qe7 Be7 44.b6+-) 41.Kb2 Rf7+/-) 39...Ne8 (39...Ne6 40.Qe6 Qe8 41.Qe8 Re8+-) 40.Qe6 h5 41.Ne5 Kh7 (41...Rf7 42.Qf7 Kh7 43.Qg6 Kg8 44.Qf7 Kh8 45.Rh5 Bh6 46.Rh6) 42.Qg6 Kg8 43.Qe6 (43.Qe6 Rf7 44.Qf7 Kh8 45.Rh5 Bh6 46.Rh6) 1-0. Grischuk,A (2775) - Nepomniachtchi,I (2780), Saint Louis Blitz, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.c4 a3 9.Bc3 Bf5 10.Be2=.

8.c4 c5 9.Rc1 (9.dc5 Nbd7 10.Bd4 Qc7 11.cd5 Nd5+=) 9...Nbd7= 10.Be2 b6 11.Ne5 Ne5 12.de5 Nd7 (12...Ne8 13.cd5 Qd5 14.Nc4 Qd1 15.Bd1=) 13.cd5 (13.f4!? Bb7 14.Bf3+=) 13...Ne5= 14.0-0 (better is 14.Be5!? Be5 15.Nc4=) 14...Qd5-/+ 15.f4 Rd8 16.Nb1 (16.Nc4 Nc4 17.Qd5 Rd5 18.Bc4 Rd2–+) 16...Nd3 17.Bg7 Kg7 (17...Nc1?! 18.Qc1 Kg7 19.Bf3 Qa2 20.Ba8=) 18.Nc3? (18.Qd3 Qd3 19.Bd3 Rd3 20.Nc3–+) 18...Qd6?? (better is 18...Qe6 19.e4 Nc1 20.Qd8 Ne2 21.Ne2 Qa2 22.Nc3–+) 19.e4?? (better is 19.Ne4 Qd7 20.Rc3-/+) 19...Nc1 20.Qc1 Bb7 21.f5 (21.Rd1 Qe6 22.Re1 Rd4–+ (22...Be4?! 23.Bf3 f5 24.Be4 fe4 25.Re4–+)) 21...Qe5 0–1. Chatalbashev,B (2545) – Krysa,L (2455), Graz Open A, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.c4 c6 9.cd5 Qa5 10.dc6 a3 11.cb7 Bb7 12.Bc1 Rc8 13.Be2 Qc3 14.Rb1 Be4 15.0-0 Bb1 16.Nb1 Qc2 17.Ba3 Qa2 18.Be7 Nbd7 19.Ne5 Ne5 20.de5 Ne8 21.Bg4 Rc7 22.Bd8 Rc2 23.Qd7 Bf8 24.Qe8 Qd5 25.Bd7 Ra7 26.e6 Qd6 27.Qf7 1–0. Ferguson (2360) – Radovanovic (2280), Hastings 1996.

8.c4 Bf5 9.Be2+=.

8.Bd3 Bf5 (8...c6 9.Ba3=) 9.0-0 (9.Bf5 gf5 10.Ba3 Ne4=) 9...Bd3 10.cd3 Qd7 (10...c6 11.bc6 Nc6 12.Ne5=) 11.Rb1 Qb5 (11...Qe6 12.Ba3=) 12.Ba3+= Qa6 13.Qc2 (13.Be7 Re8 14.Bf6 Bf6+=) 13...c6 (13...Re8=) 14.e4 (better is 14.Be7!? Re8 15.Bf6 Bf6 16.Rfe1+=) 14...Re8+= 15.e5 (15.Rb2 Nbd7+=) 15...Nh5-/+ 16.e6 (16.Rb2 Nf4 17.Rfb1 b5-/+) 16...fe6 (16...Nf4 17.ef7 Kf7 18.Rfe1-/+) 17.Rfe1 Nd7 18.Re6 Bf6 19.Rbe1 (19.Re3 Ng7-/+) 19...Ng7 20.R6e2 Nf5 21.g4 Nd4 22.Nd4 Bd4 23.Nf3 c5 (better is 23...Bg7!?-/+) 24.Nd4= cd4 25.Re7 Re7 26.Re7 (worse is 26.Be7 Re8+=) 26...Nf8? (26...Nf6 27.g5 Nh5+–) 27.Qc5+– Qc6 (27...Ne6 28.Qd5 Qc6 29.Qc6 bc6 30.Re6 Rc8+–) 28.Qd4 Ne6 (28...Qf6 29.Qf6 Ne6 30.Qf7 Kh8 31.Qh7) 29.Qf6 (29.Qf6 Qc1 30.Bc1 Rf8 31.Qe6 Kh8 32.Bb2 d4 33.Bd4 Rf6 34.Bf6) 1–0. Moradi,Amirmasoud (2165) – Khodashenas,Mersad (2415), 14. Avicenna Open, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

8.Ba3 Re8

9.Rc1 Ne4 10.Ne4 de4 11.Nd2 e5 12.c3 Be6 13.Nc4 ed4 14.cd4 Qg5 15.Nb2 Ba2 16.Rc7 Nc6 (16...Bb3 17.Qc1=) 17.Rb7 (17.Na4 Qd8 18.b6 Qd5+/-) 17...Nd4 18.ed4 e3 (better is 18...Bb3 19.Qb1 Bd4–+) 19.f3+/- (19.Na4?? ef2 20.Kf2 Qe3) 19...e2 20.Be2 (20.Be2 Qe3 Double attack (20...Qg2 Deflection; 20...Qe3 Decoy)) 20...Qg2 21.Rf1 Bd4! 22.Bb4 (22.Qd4 Qe2 Mate attack) 22...Bb2 23.Qd2 (23.Qc2 Rac8 24.Re7 Rc2 25.Re8 Kg7 26.Bf8 Kf6 27.Be7 Kf5 28.Bd3 Kf4 29.Bd6 Kg5 30.Bf4 Kh5 31.Rc8 Rc8 32.Rf2 Re8 33.Be4 Bc3 34.Bd2 Qg1 35.Ke2 Bd2 36.Kd2 Rd8 37.Kc3 Qe1 38.Kb2 Qb4 39.Ka2 Qb3 40.Ka1 Rd1 41.Bb1 Rb1) 23...Rad8 (better is 23...Rac8 24.Rf2 Qg1 25.Rf1 Qh2–+) 24.Qb2 Bb3 25.Re7 Re7 26.Be7 Rd1!! 27.Bd1 Qb2 28.Bb3 (28.Be2 Qe5 29.Bb4 Qa1 30.Kf2 Qd4 31.Kg2 Qb4–+) 28...ab3 29.Bb4 Qc1 30.Ke2 Qf1! (30...Qf1 31.Kf1 b2–+) 0–1. Cherednichenko,E (2130) – Cabarkapa,N (2310), 13th EICC Plovdiv BUL, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 a4)

9.c4 c6 10.Rb1 Bf5 11.Rb4 Ne4=.

9.c4 c6 10.bc6 bc6 ½-½. Saptarshi,R (2495) - Tran Tuan Minh (2505), Thailand Pattaya Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

9.c4 c6 10.Ne5 Nfd7 11.Nd7 Nd7 12.cd5 cd5 13.f4 Qa5 14.Rc1 Nf6 15.Qc2 Bf5 16.Qc3 Qc3 17.Rc3 Rac8 18.Rc5 Ng4 19.Ke2 b6 20.Rc8 Rc8 21.Bb4 Rc2 22.a3 e6 23.h3= Nf6 24.g4 Be4 25.Rg1 Bf8-/+ 26.Kd1 Ra2 27.Bf8 Kf8 28.g5 Ne8 29.Ne4 de4 30.Kc1 Nd6 31.Kb1 Ra3 32.Bg2 Re3 0–1. Bulmaga,I (2265) – Kashlinskaya,A (2355), 39th Olympiad Women, 2010.

9.c4 Bf5 10.Be2 (10.cd5 Nd5 11.Rc1 Bg4+=) 10...Nbd7= 11.cd5 Nd5 12.Bc4 (12.Rc1 e5 13.Nc4 ed4 14.Nd4 Be4=) 12...N7b6 13.Rc1 (13.Qc1 Nc4 14.Qc4 Nb6=) 13...Nc4=+ 14.Rc4 Bd3 15.Rc5 (15.Ra4 Qd7-/+) 15...b6 16.Rc1 Bb5 17.Nc4 Bc4 18.Rc4 b5 19.Rc5 b4 20.Bb2 Qd6 Black prepares a3 21.0-0 e5 (21...Red8 22.Qc2-/+) 22.Qc1 (22.e4!? Nb6 23.Ne5 Be5 24.Re5 Re5 25.de5 Qd1 26.Rd1-/+) 22...a3-+ 23.Ba1 e4 (23...ed4 24.Bd4 Bd4 25.Nd4-+) 24.Nd2 (24.Ne5 Bf8 25.Qc4 Rad8=) 24...Rac8 25.Qc4 c6 (25...Rcd8!?-/+) 26.Rc1=+ f5 27.Qa6 Bf8 (27...f4 28.Ne4 Qd8 29.Rc6 Rc6 30.Rc6 fe3 31.f3-/+) 28.Rc6 Rc6 29.Rc6 Qd7 30.Nc4 (30.Qc4=+) 30...Ne7 (better 30...b3!? 31.ab3 Nb4 32.Rg6 hg6 33.Qg6 Bg7-+) 31.Rc5 (31.Rd6 Qc7 32.d5 Ra8 33.Qa8 Qc4+=) 31...Rc8 (31...Nd5 32.Rc6=) 32.Rc8+= Qc8 33.Qc8 (better 33.Qb5!?+=) 33...Nc8=+ 34.d5 (34.Kf1 Ne7=+) 34...Kf7 (34...Nd6 35.Ne5 Nb5 36.Nc4-+) 35.f3=+ Bc5 36.Kf2 Ke7 (36...Ne7!? 37.d6 Nd5-/+) 37.fe4= fe4 38.Be5? (38.Nd2 Kd6 39.Ne4 Kd5=) 38...Nd6 (38...Nb6!? 39.Nb6 Bb6-/+) 39.Na5 (39.Nd2 h5=) 39...Nf5 40.Bf4 Kd7 41.Nb3 Bb6 42.Nd2 (42.d6 Nd6 43.Nd2 Nb5 44.Ne4 b3-+) 42...Ne7-+ 43.d6 (43.Ne4 Nd5 44.Be5 Ne3-+) 43...Nd5 44.Nc4 (44.Ke1 Nc3 (44...Be3?! 45.Be3 Ne3 46.Ne4-/+) 45.Be5 Na2 46.Ne4 Ke6-+) 44...Bc5 (better 44...Nf4 45.Nb6 Kd8-+) 45.Be5 Nc3 46.Bc3 bc3 47.Ke2 Bd6 48.h3 (48.Kd1 Bb4-/+) 48...Bc5 (48...Kc6 49.Kd1 Bb4 50.Kc2-/+) 49.Kd1 Kc6 50.Kc2 Kd5 (50...Bb4!?-/+) 51.Kc3=+ g5 (51...Ke6 52.Kb3=+) 52.Kb3 (52.g4 Ke6=) 52...h5 (52...Ke6 53.Na3 Be3 54.Kc4=+) 53.Kc3 (53.g4!? hg4 54.hg4=) 53...g4=+ 54.hg4 hg4 55.Kb3 Ke6 56.Nd2 Kd5 (56...Ke5 57.Nc4 Kf5 58.Na3 Be3 59.Nb1=+) 57.Nf1 (57.Nc4!?=) 57...Bd6=+ 58.Nd2 Bc5 59.Nf1 Bd6 60.Nd2 Bc5 ½-½. Pham Le Thao Nguyen (2365) - Gong Qianyun (2330), Asian Nat Online Cup Women, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.Be2 Ne4 10.Ne4 de4 11.Nd2 e5 12.d5 Qd5 13.Bc4 Qd8 14.Ne4 Qh4 15.Qf3 Bf5 16.g4 (16.Bd5 Ra5+=) 16...Qg4= 17.Qg4 Bg4 18.Ng5 Be6 19.Ne6 fe6 20.0-0-0 Bf8 21.Bb2 Bd6 22.b6 Ra5 23.bc7 Bc7 24.Ba3 b5 (24...e4 25.Rd4=) 25.Bd3 (better 25.Be2=) 25...Ra6?? (better 25...Na6=) 26.Bb5+- Rc8 27.Ba6 Na6 28.Rd7 (28.Rhg1 e4 29.Rg4 Bh2 30.Re4 Nc7+-) 28...Ba5 (28...Nb8 29.Rd3 Ba5 30.Bd6+-) 29.Rhd1 (29.Ra7 Bb4 30.Bb2 Nc5+-) 29...Bb4 (29...Nb8 30.Rb7+-) 30.Rd8 Rd8 31.Rd8 Kf7 32.Bb4 Nb4 33.c3 (33.c3 Nd5 34.Kc2+-) 1-0. Gharibyan,Mamikon (2430) - Gabdrakhmanov,Azat (2325), Titled Tue, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

7.b5 c5

8.c4 cd4 9.Bd4+= Nbd7 10.Qb3 (10.cd5 Nd5 11.Bg7 Kg7+=) 10...a4= 11.Qb2 a3 (11...dc4 12.Nc4 a3 13.Qb3+=) 12.Qc3 (12.Qb3 e6+=) 12...Re8 ½–½. Vogel,Roven (2420) – Perske,Thore (2380), 33. Boeblinger Open, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 c5)

8.c4 cd4 9.Bd4 Nbd7 10.Be2 b6 11.0-0 Bb7 12.Rc1 Rc8 13.Rc2 Nc5 14.Qa1 Ne6 15.Be5 dc4 (15...Qd7 16.Rfc1+=) 16.Nc4 Nd5 (16...Rc5 17.Rd1 Bd5 18.a4+/-) 17.Bg7+/- Ng7 18.Nfe5 (18.Rd1 f5+/-) 18...f6+= 19.Nc6 (19.Nf3 e5+=) 19...Bc6= 20.bc6 Rc6 21.Rd2 b5 (21...f5 22.Rfd1 e6 23.Ne5=) 22.Na3 (better 22.Na5!? Qa5 23.Rd5+/-) 22...b4= 23.Nc4 Nc3 (better 23...f5!?=) 24.Rd8+/- Ne2 25.Kh1 Rd8 26.Na5 Rc2 27.Qb1 Rdd2 (better 27...Rdc8 28.h4 Kf8 29.Qb4 Ra2+/-) 28.Nb3?? (better 28.Qb4 Nc3 29.Qe7 Rf2 30.Qd8 Kf7 31.Qc7 Kf8 32.Qc5 Ke8 33.Qc8 Ke7 34.Nc6 Kd6 35.Qa6 Rf1 36.Qf1+-) 28...Nc3=+ 29.Qa1 Ra2 (29...Rf2!? 30.Rf2 Rf2-/+) 30.Nd2= Ra1 (worse 30...Rd2 31.Qa6 Rb2 32.Qc4 Kf8 33.Ra1+-) 31.Ra1 Ne6 32.Ra8 Kf7 33.Rb8 Nd5 (33...Na2 34.Nb3+=) 34.e4 (34.Nc4+/-) 34...Nc3? (better 34...Ndf4!?+=) 35.Rb4+- Nd1 36.Kg1 Nf4 37.Rb3 Ne2 (37...Nc3+-) 38.Kf1 Nd4 (38...Nec3 39.Ke1+-) 39.Rd3 e5 40.Nc4 Nc3 (40...Nf2 41.Kf2 h5 42.Ra3+-) 41.Rc3 Ke6 (41...h5 42.h4+-) 42.Ra3 f5 (42...h5 43.Ra6 Kf7 44.Nd6 Ke7 45.Nc8 Kf7 46.Ra7 Kf8 47.Nd6+-) 43.Ra6 Kf7 44.Ne5 Ke7 45.ef5 Nf5 46.g4 Nh4 (46...Nd4 47.f4+-) 47.f4 g5 (47...Ke8 48.Kf2 Ke7+-) 48.f5 h5 49.f6 Kd8 50.f7 (50.Ra7 Ng6 51.Ng6 Kc8 52.f7 Kb8 53.Re7 hg4 54.f8Q) 50...Ng6 (50...Ke7 51.Ra7 Kd6 52.f8Q Ke5 53.Qc5 Ke4 54.Ra4 Kd3 55.Rd4 Ke3 56.Qc3) 51.Ng6 (51.Ng6 Kd7 52.f8Q Kc7 53.Qd6 Kb7 54.Rb6 Kc8 55.Ne7) 1-0. Kuzubov,Y (2640) - Atanasov,Anthony (2170), Titled Tuesday 9th Feb, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.c4 cd4 9.Bd4+= Bg4 10.Be2+=.

8.c4 Ne4 9.Rc1 Bg4 10.Be2 cd4 11.Nd4 (better 11.Bd4!? Bd4 12.ed4 Nd2 13.Nd2 Be2 14.Qe2 (worse 14.Ke2 dc4 15.Rc4 Nd7=+) 14...dc4 15.Nc4 Qd4 16.0-0+= (worse 16.Qe7 Nc6 17.Qe2 Rfe8-/+)) 11...Be2=+ 12.Qe2 Nd2 13.Qd2 dc4 14.0-0 Qd5 15.Qe2 e5 16.e4 Qd7 17.Nf3 Qb5 18.a4 (18.Rc4!? Nc6 19.Qc2=+) 18...Qa4-/+ 19.Be5 (19.Rc4 Qb5 20.Ba3-+) 19...Nc6 (better 19...Be5!? 20.Ne5 b5-+) 20.Bg7 (20.Rc4 Qb3 21.Nd2 Qa3=+) 20...Kg7 21.Rc4 Qb5 22.Qc2 Ne5 (22...Rfd8 23.Rc5 Qb4 24.Rb1-/+) 23.Rc5 (23.Ne5!? Qe5 24.Rc5=+) 23...Nf3-/+ 24.gf3 Qb6 25.Rb1 Qf6 26.Rb7 Qf3 ½-½. Raznikov,D (2500) - Aharonovich,Itamar (2290), TCh-ISR, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.c4 Bf5 A) 9.cd5 cd4 (9...Nbd7 10.Rc1 Rc8 11.Be2 cd4+=) 10.Bd4 Qd5 11.Qb3 Qb3=; B) 9.Be2 Nbd7 (9...dc4 10.Rc1 c3 11.Bc3 cd4+/-) 10.cd5 cd4 11.Bd4 Nd5+=; C) 9.Rc1 cd4 (9...Nbd7 10.cd5 Rc8 11.Be2 cd4+=) 10.Bd4 Nbd7 11.cd5 Nb6+=.

8.c4 Ng4 A) 9.h3 Nh6 10.cd5 cd4 11.e4 Re8+=; B) 9.cd5 cd4 (9...Qd5 10.Bc4 Qh5 11.Ne4 cd4+/-) 10.Bd4 Bd4 11.ed4 Bf5+=; C) 9.Be2 a4 (9...cd4 10.Nd4 h5 11.h3 Nf6+/-) 10.0-0 cd4 11.Nd4 Nf6+/-.

8.dc5 Qc7 9.Nb3 (9.Bd4 Nbd7+= (9...Be6 10.b6 Qc8 11.Bb5 Nbd7+=) 10.c4 e5 11.b6 Qb8+=; 9.c4 Qc5 (9...Nbd7 10.cd5 Qc5 11.Bc4 Nb6+=) 10.Rc1 Bg4 11.Bd4 Qa3+=; 9.Rc1 Qc5 (9...Nbd7 10.c4 Qc5 11.Be2 dc4+=) 10.c4 Bg4 11.Bd4 Qa3+=) 9...a4 (9...Bg4 10.h3 Bf3 11.Qf3 a4=) 10.b6 (10.Be5 Qd8 11.Nbd2 Bg4=) 10...Qd8 (10...Qc6 11.Ne5 Qe6+=) 11.Nc1 Nc6 (11...Bg4=) 12.Ne5 a3 13.Bd4 Nd4 14.ed4 Ne4 15.Nb3 f6 16.Nd3 e5 17.f3 (17.Be2 Re8 18.0-0 ed4+=) 17...Ng5 (17...Nc3!? 18.Qd2 Re8=) 18.h4 Ne6 19.c3 (19.h5 Re8+=) 19...Re8 20.de5 fe5 21.Qd2 (21.Nb4 e4 22.Nd5 ef3=) 21...Nf4 (21...e4!? 22.fe4 de4+=) 22.Nf4 ef4 23.Kf2 Re3 24.Nd4 (24.Bd3 Qf6=) 24...Qe7+= 25.Re1 Qc5 26.Re3 fe3 27.Qe3 Bd7 28.Be2 Re8 29.Qd2 Qb6 30.Rd1 Bf6 31.g3 Rc8 32.Kg2 Qb2 33.Nb3 Qd2 34.Rd2-/+ Rc3 35.Bd1 Be6 36.Nd4 Bd4 37.Rd4 b5 38.Kf2 Rc4 39.Ke3 Kf7 40.Bb3 Rc3 41.Kf4 Rb3 42.ab3 a2 43.Rd1 d4 44.Ra1 Bb3 45.Ke4 Bc2 46.Kd4= Bb1 47.Kc5 Ke6 48.Kb5 Kd5-/+ 49.h5 g5 50.f4 gf4 51.gf4 Ke4 52.Kc4 Kf4 53.h6 Kg5 54.Kd4 Kh6 55.Ke3 Kg5 56.Kf3 h5 57.Kg3 h4 58.Kf3 Kf5 59.Kg2 Kg4 60.Kh2 h3 61.Kh1 Kg3 62.Kg1 h2 (62...h2 63.Kf1 Kf3 64.Ke1 Ke3 65.Rb1 ab1Q) 0–1. Cherednichenko,Elena (2115) – Warakomska,Anna (2170), Druzynowe Mistrzostwa Polski I LIGA, 2011.

8.dc5 Nbd7 9.c6 bc6 10.bc6 Nb8 11.Bb5 Qb6 12.a4 (12.Rb1 Nc6 13.0-0 Rd8=) 12...Nc6 13.c4 Bf5 (13...Rd8 14.cd5 Rd5 15.Qb3=) 14.cd5 Nb4 (14...Nd5? 15.Bg7 Kg7 16.e4+–) 15.0-0 Bc2 (15...Nbd5 16.Nc4 Qd8 17.Rc1+=) 16.Nc4 (16.Qe2 Nfd5 (16...Nbd5?? 17.Nc4 Qe6 18.Qc2+–) 17.Nc4 Qe6 18.Bg7 Kg7+/-) 16...Qc5 (16...Qd8 17.Qd2=) 17.Qd4 (17.Qc1 Bd3 18.Rd1 Rfc8+=) 17...Qd4 (17...Qd5 18.Qd5 Nfd5 19.Bg7 Kg7 20.Nd4=) 18.Nd4 (worse is 18.ed4 Nfd5 19.Nfe5 Rfd8=) 18...Bd3 19.Rfd1 Nfd5 20.Na5 Bd4 21.Bd4 Bc2 22.Nc6 (22.Nc4 Bd1 23.Rd1 Rfd8=) 22...Bd1 23.Rd1 Nc6 (23...Rfc8 24.Nb4 Nb4 25.g4=) 24.Bc6+= Ra5 25.Bb5 (25.e4 Nf6 26.Bb6 Re5+=) 25...Rc8= 26.Kf1 Raa8 (26...e5 27.Be5 Nb6 28.f4=) 27.Rd3 Nb4 (27...Rc2 28.Ke1=) 28.Rb3 Nc6 29.Bb2 f6 (29...e5 30.Ke2=) 30.g4 (30.Rc3 Na5=) 30...Na5 (30...Kf7 31.f4=) 31.Rb4 (31.Rc3 Rc3 32.Bc3 Kf7=) 31...Rc2 (31...Kf7 32.Ke1=) 32.Bd3 Rd2 (32...Rc7 33.f4=) 33.Be4 Rad8 (33...Rc8 34.Ke1 Rd7 35.Rb5=) 34.Bd4+= Rd6 (better is 34...f5!? 35.gf5 gf5+/-) 35.Ke1+– Ra2 36.Bb1 Rd4?? (better is 36...Ra3 37.Bb2 Rb3+–) 37.Ba2 (37.Ba2 e6 38.Rd4+–; 37.ed4?! Ra1 38.d5 Kf7+–; 37.Rd4?! Ra1 38.Rb4 Nc6+=) 1–0. Vogel,Roven (2415) – Lorparizangeneh,S (2440), World Youth Boys U16, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 a5 7.b5 c5)

8.dc5 Nbd7 9.Bd4 Ne8 (9...Qc7 10.c4 e5 11.b6 Qb8+=) 10.c4 e5 11.Bc3 d4+=.

8.dc5 Ne4? 9.Bg7+/- Kg7 10.c4 Nc5 11.Nb3 Nb3 12.Qb3 dc4 13.Bc4 Nd7 14.0-0 Nb6 15.Rfd1 Qc7 16.Rac1 Nc4 17.Rc4 (17.Qc4?! Qc4 18.Rc4 Be6=) 17...Qb6 18.a4 Be6 19.Qb2 Kg8 20.Rh4 Rfd8 21.Re1 Qc5 22.Nd4 Bd5 23.Rc1 Qb4 24.Qe2 (24.Qc2!?=) 24...Rac8 (24...Qa4 25.Qf1-/+) 25.Rc8 (better 25.Ra1=+) 25...Rc8-+ 26.h3 Rc1 (better 26...e5!?-+) 27.Kh2-/+ Qd6 28.f4 Be4 29.Qg4 f5 30.Qg5 Qf6 31.Qh6 (31.Qf6 ef6 32.g4-/+) 31...Qg7 (31...Qf7!? 32.Qg5-+) 32.Qg5 (better 32.Qg7!? Kg7 33.Ne6 Kf6 34.Ng5=+) 32...Rd1 33.Qg3 Rd2 34.Nf3 Re2 35.Ne5 (35.b6-+) 35...Rg2 36.Qg2 Bg2 37.Kg2 Qf6 (better 37...g5 38.Rg4 fg4 39.hg4 gf4 40.ef4-+) 38.Kg3 Qd6 39.Kf3 (39.Nf3-+) 39...Qd1 40.Kg3 (40.Kf2 Qd2 41.Kf3 Qe1-+) 40…Qe1 (40...Qe1 41.Kg2 Qh4-+) 0-1. Injac,Teodora (2285) - Kiran,M (2165), Women's Speed Chess Q5, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.dc5 Bg4 A) 9.h3 Bf3 (9...Be6 10.a4 Qc7 11.Bd4 Nbd7+=) 10.Nf3 Nbd7 11.c4 Nc5=; B) 9.Rb1 Qc8 (9...Qc7 10.h3 Bf3 11.Qf3 Nbd7+=) 10.h3 Be6 11.Ba3 Nbd7=; C) 9.c4 Nbd7 (9...Qc7 10.h3 Bf3 11.Qf3 Nbd7+/-) 10.cd5 Nc5 11.Bc4 Nd5+=.

8.c4 Nbd7

9.Rc1 a4 (9...e6 10.Be2 cd4 11.Bd4 Qe7+=) 10.Be2 b6 11.cd5 a3+=.

9.Rc1 cd4 10.Bd4 e5 11.Ne5 (11.Be5?! Ne5 12.Ne5 Ne4=) 11...Ne5 12.Be5 Re8 13.Nf3 Bg4 14.Bd4 Bf8 15.c5 b6 16.Be2 bc5 17.Bc5 Bc5 18.Rc5 Qd6 19.Qd4 (19.Qd4 Rac8 20.Rc8 Rc8 21.0-0+/-) 1–0. Sengupta,D (2445) – Heinis,V (2200), Premier, Hastings ENG, 2008.

9.Bd3 a4 (9...cd4 10.Bd4 e5 11.Ne5 Ne5+=) 10.0-0 Re8 11.cd5 Nd5+=.

9.cd5 Nd5 10.Rc1 cd4 11.Bd4=.

9.Be2 a4 10.Rc1 b6 11.cd5 a3+=.

9.Be2 b6 10.0-0 Bb7 11.Rc1 Rc8 12.Qb3 Re8 13.cd5 Bd5 14.Bc4 e6 15.Ba3 Qc7 16.h3 Qb7 17.dc5 Nc5 18.Bd5 (18.Bc5 Rc5 19.Bd5 Qd5 (worse 19...Nd5 20.Rc5 bc5 21.Rc1+/-) 20.Qd5 Rd5=) 18...ed5=+ (worse 18...Nd5 19.Bc5 Rc5 20.Rc5 bc5 21.Rc1+/-) 19.Qb1 Nfe4 20.Bc5 bc5 21.Ne4 Re4 (worse 21...de4 22.Nd2 Rcd8 23.Nc4+/-) 22.Rfd1 Rb4 23.Qd3 d4 24.ed4 c4 25.Qc3 Qb5 26.Ne5 h5 27.Rc2 Qd5 28.Rdc1 Rc7 29.Qg3 Qd6 30.Nc4 (30.Rc3 Qd4 31.Ng6 Rcb7=+) 30...Qg3=+ 31.fg3 Bd4 32.Kf1 a4 33.Ke2 Kg7 34.Kd3 Rd7 35.Ke2 Re7 36.Kd3 (better 36.Kf3!?=+) 36...Bf6-/+ 37.Rd1 (better 37.Rf1!?-/+) 37...Rb5-+ 38.Ne3 Bg5 39.Re1 (39.Kc4 Rb8 40.Nd5 Rc8 41.Kd3 Rc2 42.Kc2 Re2 43.Kc3 Rg2-+) 39...Rb8 40.Ree2?? (better 40.Rc3 Rd7 41.Ke4-+) 40…Rd8 (40...Rd8 41.Nd5 Rd5 42.Kc4 Red7-+) 0-1. Gordievsky,D (2610) - Melkumyan,H (2670), World Rapid, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.Be2 b6 10.cd5 Nd5 11.0-0 Bb7+=.

8.bc6 bc6

9.c4 Ba6 10.Be2= Nbd7 11.0-0 c5 12.dc5 Nc5 13.Rc1 Rb8 14.Be5 Rc8 15.Bd4 ½–½. Maia,MAF (2115) – Alvarenga de Carvalho,MA (2070), Rio de Janeiro BRA, FEXERJ Open, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2).

9.c4 Na6 10.Ne5=.

9.Bd3 Ba6 10.0-0 Bd3 11.cd3 Nbd7 12.Qa4 c5 13.Rfc1 cd4 14.Bd4 (14.Qd4?? Ne8 15.Qd5 Bb2-+; 14.Nd4?! Qe8+=) 14...e6 15.Nb3 Re8 16.Ne5 Ne5 17.Be5 Nd7 18.Bg7 Kg7 19.Rc2 Ne5 20.Qd4 Qf6 21.Rc7 Rec8 22.Rac1 Rc7 23.Rc7 a4 24.Nc5 Rb8 25.h3 Rb1 26.Kh2 Rb2? (better 26...g5+=) 27.Ne6!+- (27.Qb2? Nf3 28.gf3 Qb2-+) 27...Kh6 (27...Qe6 28.Qb2 Zwischenzug) 28.Qf4?? (better 28.Rf7! Nf3 29.gf3 Rf2 30.Kg1 Qd4 31.ed4+- (worse 31.Nd4 Ra2 32.Ne6 Rb2+-)) 28...Qf4= 29.Nf4 Rf2 (29...g5!? 30.Nd5 Nd3 31.Rf7 Ra2+=) 30.d4+/- (worse 30.Nd5 Nd3 31.Kg3 Ra2 32.Rf7 Ne1=+) 30...Nc4 31.Nd5 Nd6 32.a3 Nb5 (32...Ra2!? 33.Rd7 Nf5+/-) 33.Rc4+- Na3 34.Ra4 Nc2 35.Ra2 Re2? (better 35...Rd2 36.e4 Kg5+-) 36.Nb4!! Nd4 (36...Nb4 37.Re2 Pinning (37.Re2 Deflection)) 37.ed4 Re4 38.Rd2 Kg7 39.Kg3 Kf6 40.Kf3 Rh4 41.Nd5 Ke6 42.Ne3 White prepares the advance d5 42...Kd6 43.d5 f5 44.g3 Rh3 (44...Ra4+-) 45.Nc4 Kd7 46.d6 Rh1 (46...f4 47.Nb6 Ke8 48.d7 Kd8+-) 47.Ne5 Ke6 48.d7 Rf1 49.Ke2 Rh1 50.d8Q (50.d8Q Rh2 51.Ke3 Rd2 52.Qe8 Kf6 53.Kd2 g5 54.Nd7 Kg7 55.Qe6 h6 56.Qe7 Kh8 57.Nf6 f4 58.Qf8) 1-0. Harsha,B (2505) - Stany,G (2520), Titled Tuesday, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.Be2 a4 10.Rc1 Nbd7 11.c4 Ne4 (11...Re8 12.0-0+=) 12.cd5 (12.0-0 Nd2 13.Qd2 Ba6+=) 12...cd5 13.Ne4 de4 14.Nd2 Bb7 15.0-0 Bd5 16.Ba3 Re8 (16...Ba2 17.Qc2 Bd5 18.Ne4=) 17.Bc4 (17.Bb5 e5 18.de5 A) worse is 18...Ba2 A1) 19.Ba4 Be5 20.Ne4 Bh2 21.Kh2 Re4 22.Bd7 Qh4 (22...Ra3?? 23.Rc8 Re8 24.Rd8 Rd8 25.Qc2+–) 23.Kg1 Ra3+/-; A2) 19.Ne4 Re5 20.Bd7+/-; B) 18...Be5+=) 17...e6 18.Bb5 The isolani on a4 becomes a target 18...e5 19.de5 Re5 20.Bd6 Re6 (20...Rh5 21.Bc7 Qe7 22.Bd7 (22.Ba4 Nc5 23.Rc5 Qc5–+) 22...Qd7 23.Ne4+=) 21.Nc4 (21.Bc7!? Qe7 22.Ne4 Be4 23.Bd7+/-) 21...Nf6= 22.Bg3 (22.Bc5 h6=) 22...Nh5 (22...Bc6 23.Bc6 Rc6 24.Nd6=) 23.Ba4 (23.Bh4 Qh4 24.Qd5 Rd8+=) 23...Ng3= 24.hg3 (24.fg3 Qg5 25.h4 Qd8= (25...Qg3? 26.Qd5 Rb8 27.Rb1 Rb1 28.Qd8 Bf8 29.Rb1+–)) 24...Qg5 25.Bd7 (25.Bb3!?=) 25...Rea6+= (worse is 25...Ra2 26.Be6 Be6 27.Nd6+/-) 26.Bb5 Rf6 27.a4 h5 (27...h6 28.Qe2+=) 28.Rc2 (28.Qe2 h4 29.gh4 Qh4+=) 28...Kh7 (28...Rd8 29.Qe2+=) 29.Rd2 Rd8 30.a5 (30.Qe2 Rf5+=) 30...Rf5= 31.Qe2 (31.Qc2 h4 32.Rd5 Rfd5-/+ (32...Rdd5?! 33.Bc6=)) 31...h4 32.g4 (32.Nb6 hg3 33.fg3 Rf1 34.Kf1 Be6 35.Rd8 Qd8=) 32...Bc4 33.Bc4 (33.Qc4? Rc5 (33...Rd2 34.gf5 Qf5 35.Bc6+=) 34.Qc5 Qc5 35.Rd8 Qb5–+) 33...Rd2 34.Qd2 Ra5 (34...Qg4 35.Qd1 Qd1 36.Rd1 Ra5 37.Bf7=) 35.Bf7 (35.Qd7 f5 36.gf5 gf5=) 35...Qg4 36.Be6 (36.Qa5?? h3 37.Qg5 Qg5–+) ½–½. Makhnyov,Denis (2375) – Ismagambetov,Anuar (2545), ch–KAZ, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5 7.b5 c5)

9.Be2 Ba6 10.0-0 c5 11.dc5 Qc7 (11...Nbd7 12.c6 Nb8 13.Ba6 Ra6 14.Rb1=) 12.c4+= Qc5 13.Nb3 Qb4 14.cd5 Be2 15.Qe2 Nd5 16.Bg7 Kg7 17.Rfd1 Nf6 (17...a4 18.Rd5 ab3 19.Qb2 f6 20.a3+=) 18.Ne5 (18.Rac1 Nbd7 19.Nfd4 e5+=) 18...Qe4 19.Nc4 Attacks the isolani on a5 (19.Qb5 Na6 20.Rd4 Qf5+=) 19...Nc6+= 20.Rac1 Rfb8 21.h3 a4 22.Nc5 Qf5 23.Na3 Ne5? (23...Rd8 24.Rd8 Rd8 25.Nb5=) 24.Nb5 (better 24.f4!? Nc6 25.g4+/-) 24...Qh5 (24...Nf3! 25.gf3 Ra5=) 25.Qh5+= Nh5 26.Nd4 g5 (26...Rc8 27.f4 Nc6 28.Nce6 fe6 29.Nc6+/-) 27.Nf5 Kf8 28.g4 Nf6 29.f4 Nf3 30.Kf2 Nh4 31.fg5 Rb2 32.Kg3 Nf5 33.gf5 Nh5 34.Kg4 Ng7 35.a3 Rg2 36.Kf3 Rg5 37.e4 Nh5 38.Rg1 Rg1 39.Rg1 Rc8 40.Rc1 (40.Na4?! Rc4 41.Nb6 Rc3 42.Kg4 Nf6 43.Kf4 Ra3=) 40...Ke8 41.Rc3 e6 (41...Ra8!?+/-) 42.fe6 fe6 43.Na4 Ra8 44.Nb6 Ra6 45.Nc4 Nf6 46.Kf4 Ke7 47.Ne5 (47.Rb3!?+/-) 47...Ra4 The isolani on e4 becomes a target 48.Nc6 Kd6 49.Nb4 Nd7 50.Rc6 Ke7 51.Ra6 Ra6 52.Na6 Kd6 53.Nb4 Kc5 54.h4 Kd4? (better 54...h6!?+/-) 55.Nc6+- Kc5 (55...Kc3 56.a4 Nc5 57.a5+-) 56.Ne5 Nf6 (56...Nb6 57.h5 Kd6 58.h6+-) 57.Ng4 Nd7 (57...Ne8 58.Ke5 Ng7 59.Nf6+-) 58.h5 Kd4 (58...h6 59.a4 Kd4 60.a5+-) 59.h6 Kd3 (59...Kc5+-) 60.e5 (better 60.Ne5 Ne5 61.Ke5+-) 60...Kd4 (60...Nf8 61.a4 Kc4 62.Ke4+-) 61.a4 Kc5?? (better 61...Nf8+-) 62.Nf6 Nf8 63.Kg5 Kb4 (63...Ng6 64.Ng4 Kc6+-) 64.Nh7! Nh7 65.Kg6 Nf8 66.Kg7 (66.Kg7 Nd7 67.h7 Ne5 68.h8Q+-) 1-0. Pantzar,Milton (2330) - Vasques,A (2210), Portugal Open, 2019. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

8.bc6 Nc6

9.a4 Nb4 10.c3 Nc6 11.Be2 Bf5 12.0-0 Rc8 13.Ba3 Ne4 14.Ne4 Be4 15.Nd2 Re8 (15...Bf5!?+=) 16.Ne4+/- de4 17.Qb3 e5 18.Rfd1 White prepares the advance d5 18...ed4 19.cd4 Qd7 (19...Rc7 20.Bc5 Qg5 21.Bb6+/-) 20.Rab1 Ne7? (better 20...Red8+/-) 21.Bb5+- Nc6 22.d5 Qg4 23.h3 Qg5 (23...Qf5+-) 24.dc6 bc6 25.Bc4 (25.Rd7 Kh8 26.Bc6 Qf6+-) 25...Rc7 (25...Qf5 26.Qb7 Be5 27.Rd7+-) 26.Qb6 (26.Qb8 Rcc8 27.Bf7 Kh8 28.Be8 Rb8 29.Rb8 Be5+-) 26...Be5 27.Bd6 Bd6 28.Rd6 Rce7 (28...Rec8 29.Rbd1 Qe7 30.Qa5+-) 29.Rd8 (29.Rc6 Rd7+-) 29...Kg7 (29...Qf5 30.Re8 Re8 31.Qc6+-) 30.Re8 Re8 31.Qc6 Rd8 (31...Qe5 32.Rb5 Qa1 33.Kh2+-) 32.Qb5 (32.Rb7!? Qe5 33.Rf7 Kh6+-) 32...Qf6 (32...Qf5 33.Qf5 gf5 34.Rb5 Rd1 35.Bf1+-) 33.Qb2 (better 33.Qa5 Rd7+-) 33...Rd1 34.Bf1 (better 34.Kh2 Rb1 35.Qb1 Qe5 36.Kg1+-) 34...Qb2 35.Rb2 Ra1 36.Rb7 Ra4 37.g4 h6 (37...Rb4 38.Rc7 a4 39.Bc4+-) 38.Kg2 g5 (38...Kf6 39.Ra7 Rb4 40.Ra5+-) 39.Ra7 Kg6 (39...Rb4 40.Ra5 Kg6 41.Bb5+-) 40.Bb5 Rb4 41.Be8 a4 42.Rf7 (better 42.Bf7!? Kf6+-) 42...Rb8 43.Re7 Kf6 44.Re4 a3 45.Bc6 Rb6 46.Bd5 Ra6 47.Ba2 Ra5 48.Re6 Kg7 49.Rb6 h5 (49...Ra4 50.Kf3+-) 50.gh5 g4 (50...Kh8+-) 51.h6 Kh7 (51...Kh8 52.hg4 Rg5 53.Kg3+-) 52.hg4 (52.Bb1 Kg8 53.h7 Kg7 54.Rb7 Kh8 55.Rb8 Kg7 56.h8Q Kf7 57.Qe8 Kf6 58.Qc6 Ke7 59.Rb7 Kf8 60.Qc8) 52...Rg5+- 53.Kg3 Rg8 54.f4 (54.Bg8 Kg8 55.Rb8 Kf7 56.h7 Kg6 57.h8Q Kf7 58.Qe8 Kf6 59.Rb6 Kg7 60.Qd7 Kf8 61.Rb8) 54...Rf8 55.g5 Re8 56.Rb7 Kg6 (56...Kh8 57.Bd5 a2 58.g6 Re3 59.Kg4 Rg3 60.Kg3 a1Q 61.Rh7) 57.Bf7 (57.Kg4 Re7 58.Bg8 Rf7 59.Rb6 Rf6 60.Rf6) 57...Kf5+- 58.Be8 Ke4 59.Kf2 (59.h7 a2 60.Bg6 Ke3 61.Rb3 Kd2 62.Rb2 Kc3 63.h8Q Kc4 64.Qc8 Kd4 65.Rd2 Ke3 66.Qc3) 59...a2 (59...Kd5 60.h7 Kd6 61.h8Q Kd5 62.Qe5 Kc4 63.Qd4) 60.Bg6 (60.Rd7 Kf5 61.Kf3 a1Q 62.e4 Ke6 63.f5 Ke5 64.Rd5) 60...Kd5+- 61.Bf7 Kc6 62.Ba2 Kb7 63.h7 Kc6 If Black now would get g6 in, he might survive 64.h8Q Kb5 (64...Kb7 65.Bd5 Kb6 66.Qb2 Kc7 67.Qb7 Kd6 68.Qc6 Ke7 69.Qc7 Ke8 70.f5 Kf8 71.Qf7) 65.Qd4 (65.Qb8 Kc6 66.g6 Kd7 67.g7 Kc6 68.g8Q Kd7 69.Qe6) 65...Kc6 66.g6 Kb5 67.g7 Kc6 (67...Ka5 68.Qd8 Kb5 69.g8Q Kb4 70.Qc4 Ka3 71.Qb3) 68.g8Q Kb5 (68...Kb7 69.Qd6 Ka7 70.Qgb8) 69.Qg5 (69.Qgd5 Ka6 70.Bc4) 69...Kc6 (69...Ka6 70.Qd7 Kb6 71.Qgb5) 70.Qdf6 (70.Qa7 Kd6 71.Qf6) 70...Kb7 (70...Kc7 71.Qgg7 Kc8 72.Qff8) 71.Qg8 (71.Qg8 Kc7 72.Qgf7 Kc8 73.Qh8; 71.Qgg7 Kc8 72.Qff8) 1-0. BabaRamdev (2845) - Gahan_MG (2725), Rated Bullet game, lichess.org, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.a4 Ne4 10.Be2 Bf5 11.0-0 Rc8 12.Ne4 Be4 13.Nd2? (better 13.Rc1!?=) 13...Bc2!-/+ 14.Qc2 Nd4 15.Qd3 Ne2 16.Qe2 Bb2 17.Rab1 Rc2 18.Qd3 Qc7 19.Nf3 Qc4 20.Rfd1 (20.Ne1 Re2-+) 20...Qd3 21.Rd3 Rfc8 22.Rd5 Rc1 23.Rd1 Rd1 24.Rd1 b5! 25.ab5 a4 26.Nd4 a3 27.Nb3 Rb8 (27...Rb8 28.Kf1 Rb5-+) 0-1. BabaRamdev (2725) - N_Chadaev (2755), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.a4 Bf5 10.c3 Qc7 11.Be2 e5 12.0-0 (12.c4 e4 13.Ne5 Rac8=) 12...Rac8 13.Ba3 Rfe8 14.Qb3 Ne4 (14...e4 15.Ne1=+) 15.Rfc1 (better 15.Ne4!? Be4 16.Bc5=) 15...Nd2-/+ 16.Nd2 Qd7 (better 16...ed4 17.cd4 Bd4-/+) 17.Qb2?? (better 17.Bf3 Red8 18.Bc5=) 17...ed4-+ 18.cd4 Nd4! 19.ed4 Re2 20.Bc5 (20.Re1 Re1 21.Re1-+) 20...Bh6 21.Rd1 Rce8 22.h3 Bh3! 23.Qc3 (23.gh3 Qf5 Double attack (23...Qf5 Decoy)) 23...Qg4 (23...Be3 24.gh3 Qh3 25.Rf1 Bf2 26.Rf2 Qg4 27.Kh2 Rf2 28.Kh1 Qg2) 24.Qh3 Qh3 25.gh3 Rd2 26.Rd2 Bd2 27.Kg2 (27.Ra2 Re1 28.Kg2 Bc3-+) 27...Re4 28.Rb1 Bc3 29.f3 Re2 30.Kg3 Rb2 (30...h5 31.h4 Ra2 32.Kf4-+) 31.Rc1 (31.Rb2 Bb2 32.Kf2 f5-+) 31...Bb4 (31...Bd2 32.Ra1-+) 32.h4? (32.Bb4 Rb4 (32...ab4?! 33.Rc5-/+) 33.Rc5 Rd4 34.Ra5 b6-+) 32...h5 (32...b6 33.Bb4 Rb4 34.Rc8 Kg7 35.Rd8 Rd4 36.Rb8-+) 33.Kh3? (33.Bb4 Rb4 (33...ab4?! 34.Rc5-/+) 34.Rc5 Rd4 35.Ra5 b6-+) 33...Kg7 (better 33...b6 34.Bb4 Rb4-+ (34...ab4?! 35.Rc8 Kg7 36.Rd8-+)) 34.Ba7 (34.Bb4 Rb4 35.Rc5-+) 34...Bd6 35.Rh1 Rf2 36.Bc5 (36.Bb6 Rf3 37.Kg2 Ra3 38.Ba5 b5-+) 36...Bc5 (worse 36...Rf3 37.Kg2 Rg3 38.Kf2-+) 37.dc5 Rf3 38.Kg2 Rc3 (38...Rf4 39.Rb1 Rb4 40.Rd1 Rh4 41.Rd5 Ra4 42.Kf3-+) 39.Rb1 Rc5 40.Rb7 Rc4 41.Rb5 Ra4 42.Kg3 (42.Rd5 Rg4 43.Kh3 a4-+) 42...Rg4 (42...Ra3!? 43.Kf2 d4 44.Rd5-+) 43.Kh3 a4 44.Rd5 Rb4 45.Ra5 Rb3 46.Kg2 a3 47.Ra6 (47.Kf2 Rb2 48.Ke3 a2-+) 47...f6 48.Ra8 (48.Ra7 Kf8 49.Rh7-+) 48...Kh6 (better 48...g5!? 49.Ra4-+) 49.Ra6?? (49.Rh8 Kg7 50.Ra8-+) 49...Rb2-+ 50.Kg3 a2 51.Ra7 (51.Kf4 Kg7-+) 51...g5 52.Ra6 Kg6 53.hg5 Kg5 54.Ra5 f5 55.Ra8 h4 56.Kh3 Kf4 57.Ra4 Ke3 58.Kh4 (58.Ra6 f4 59.Kh4 f3-+) 58...Kd2 (better 58...Rb4! 59.Rb4 a1Q 60.Rb3 Ke2 61.Kg5-+) 59.Kg5 Kc1 60.Kf5 Kb1 61.Rh4 a1Q 62.Rh1 Ka2 63.Ra1 Ka1 64.Ke4 Ka2 65.Kd3 Kb3 66.Kd4 Rc2 67.Ke4 Kc4 68.Ke5 Rd2 69.Ke4 Re2 70.Kf3 (70.Kf5 Kd4 71.Kf4 Rf2 72.Kg3 Rf5 73.Kg4 Ke4 74.Kg3 Re5 75.Kg4 Ke3 76.Kg3 Rg5 77.Kh4 Kf4 78.Kh3 Kf3 79.Kh2 Rh5 80.Kg1 Rh6 81.Kf1 Rh1) 70...Kd3 (70...Re5 71.Kf4 Kd4 72.Kf3 Kd3 73.Kf4 Rd5 74.Kf3 Rf5 75.Kg3 Ke3 76.Kg4 Re5 77.Kg3 Re4 78.Kg2 Rg4 79.Kh3 Kf3 80.Kh2 Rh4 81.Kg1 Rh3 82.Kf1 Rh1) 71.Kg4 Ke3 72.Kf5 Rf2 73.Ke6 ½-½. BabaRamdev (2760) - Khusenkhojaev (2575), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.a4 Bf5 10.c4=.

9.a4 Bg4 10.Be2 Rc8 11.0-0 Re8 12.c3 (12.c4 Qd7=) 12...e5 13.Ne5 Ne5 14.de5 Be2 15.Qe2 Ne4 (15...Re5 16.c4 Rh5 17.Rfc1=) 16.Nf3 (16.f4 Nd2 17.Qd2 f6 18.ef6 Bf6+=) 16...Rc4 (16...Be5 17.Ne5 Re5 18.c4+=) 17.Rfd1+= Nc3 (17...Rc5!?+=) 18.Bc3+/- Rc3 19.Qb5 Qc8 20.Rd5 Qc6 (20...Rc1!? 21.Rc1 Qc1 22.Qf1 Qc7+/-) 21.Qc6+- bc6 22.Ra5 f6 23.ef6 Bf6 24.Rd1 Rc2 25.g3 Rf8 (25...Re7 26.Ra6 Kf7 27.a5+-) 26.Kg2 Rb8 (26...c5 27.Rd7+-) 27.Nd4 (27.Rd7!? c5+-) 27...Bd4 28.Rd4 (28.ed4?! Rf8 29.Rf1 Rc4+-) 28...Rbb2 (28...c5 29.Rf4+-) 29.Rf4 c5 30.h4 (30.Ra8 Kg7+-) 30...c4 (30...Rb7 31.Ra8 Kg7 32.a5+-) 31.Rc5 (31.Ra8 Kg7+-) 31...Kg7 (31...c3+-) 32.Rcc4 1-0. BabaRamdev (2700) - TheRedKing89 (2625), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.c4+=.

9.Be2 a4 10.a3 Bf5 11.0-0 Qb6 12.Rb1 Rfc8 13.Nh4 Na5 Exerts pressure on the backward pawn (13...Be6 14.c4=) 14.Nf5+= gf5 15.Bc3 Qc7 16.Ba5 Ra5 17.c4 e5 18.de5 Ne4 19.Ne4 de4 20.Qe1 Ra6 21.Rb5 (better 21.f4!?+/-) 21...Be5= 22.g3 Qe7 23.Qd1 Rd8?? (better 23...Bd6=) 24.Re5!+- (24.Re5 Qf6 25.Rd5 Rd5 26.Qd5+-) 1-0. Meshkovs,Nikita (2580) - Krivenko,Dion (2045), 54th Ilmar Raud Mem, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.b5 Nbd7

8.a4 c5 (8...Nb6 9.Ng1=) 9.Be2 (9.c4 cd4 10.Nd4 Nc5=) 9...c4 10.0-0 (10.Nf1 Re8=) 10...Qc7 11.Bc3 (11.Ra3 Re8=) 11...Re8 (11...Rd8 12.Ra2=) 12.Ne5 Ne5 13.de5 Nd7 14.f4 Nc5 15.e4 (15.Nf3 Qd8=) 15...Ne4 (15...de4!? 16.Bc4 Bf5=) 16.Ne4= de4 17.Qd4 Be6 (17...Bf5 18.Qe3= (18.Bc4?? Rec8 19.Bf7 Kf7–+; 18.Qc4?? Qc4 19.Bc4 Rec8–+)) 18.Qe4 (18.Qe3!?=) 18...Bf5+= 19.Qe3 (19.Qc4? is worthless because of 19...Qc4 20.Bc4 Rec8-/+) 19...Bc2 20.e6 Bf5 (better is 20...f6+=) 21.ef7 Kf7 22.Bg7 Kg7 23.Rac1 Qd6 24.Rc4 Rac8 25.Rfc1 (25.Re1 Rc4 26.Bc4 Rc8+=) 25...Rc4+= 26.Rc4 Rd8 27.Qc3 (27.h3 Be6 28.Re4 Kf7+=) 27...Kf7+/- 28.Rc7 Qd4+= 29.Qd4 Rd4 30.Rb7 Ra4 31.Ra7 Be4 32.Kf2 Bd5 33.g3 Ra3 34.b6 a4 35.Ra5 e6 36.Rb5 Rb3= 37.Rb3 ab3 38.Ke3 Ke7 39.Kd4 Kd6 40.Kc3 Kc6 41.Bd1 ½–½. Reefschlaeger,Helmut (2355) – Steiger,Wolfgang (2325), Baden VLS, 2002. (=1.d4 D04: Colle System 1...d5 2.Nf3 Nf6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2 a5)

8.c4 dc4 9.Bc4 a4 10.0-0= Nb6 11.Bd3 a3 12.Bc1 Qd6 13.Ne5.

8.c4 dc4 9.Bc4 Nb6 10.Bd3 a4 11.Ba3 Re8 12.Qc2 Bd7 13.Ne5 Be6 14.0-0 Nfd7 15.Nef3 Rc8 16.Ng5 Nf8 (16...Bd5 17.e4 Bd4 18.ed5 Ba1 19.Ra1+=) 17.Ne6 Ne6 18.Be4 (18.Rac1!?+/-) 18...c6 19.bc6 bc6 (19...f5 20.Bf3+/-) 20.Rab1 Nd5 21.Rfc1 Qa5 22.Nf3 h6 23.h3 Qa6 (23...Qa7 24.Qd1+/-) 24.Qc4 Qa5 25.Bd5 cd5 (25...Qd5!? 26.Rb6 Bf6+/-) 26.Qc8+- Rc8 27.Rc8 Kh7 28.Be7 Qa6 (28...Qa7 29.Bb4+-) 29.Rcb8 Qe2 30.R8b2 Qa6 31.a3 g5 32.Rb7 Qd3 33.Rc1 Kg6 34.Bb4 (34.Rc6 Qe2+-) 34...h5 35.Rc6 Bf6 36.Be7 (better 36.Ne1 Qe2 37.Rc2+-) 36...g4+= 37.hg4 hg4 38.Nh4 (38.Ne1!? Qd1 39.Bb4+=) 38...Bh4= 39.Bh4 Qa3 (39...g3 40.Bg3 Qd1 41.Kh2 Qh5 42.Kg1 Qd1 43.Kh2 Qh5 44.Kg1 Qd1=) 40.Ra6 (40.Ra7+/-) 40...Qa1?? (better 40...Qd3 41.Ra5 g3 42.Bg3 Qd1 43.Kh2 Qh5 44.Kg1 Qd1 45.Kh2 Qh5 46.Kg1 Qd1=) 41.Kh2+- a3 42.Rba7 Qb2 43.Ra3 Qc2 (43...f6 44.R3a5 Ng5 45.Ra8+-) 44.R3a6 Qf5 45.Bg3 Qh5 (45...Kg7 46.Rb7+-) 46.Kg1 Qf5 47.Ra1 (47.Rb6!? Kg7+-) 47...Qc2 48.Rb7 Ng5 49.Ra6 Kg7? (49...f6+-) 50.Be5 (better 50.Rd6+-) 50...Kg8?? (50...Kh7 51.Rb8 Ne6+-) 51.Rh6 (51.Rb8 Qc8 52.Rc8 Kh7 53.Rh8) 51...f6+- 52.Bf6 Qd1 53.Kh2 Nf7 54.Rb8 Nd8 55.Rd8 Kf7 56.Be5 (56.Rd7 Ke6 57.Re7 Kf5 58.Re5) 56...g3 57.Bg3 (better 57.Kg3 Qa4+-) 57...Qg4 58.Rdd6 (58.Be5 Qe6 59.Re6 Ke6 60.Rd6 Ke7 61.g4 Kf8 62.g5 Kf7 63.g6 Ke7 64.f3 Ke8 65.Bf6 Kf8 66.Rd8) 58...Ke7 59.Rde6! Kd7 (59...Qe6 60.Bh4 Double attack (60.Bh4 Decoy)) 60.Reg6 (60.Ra6 Qf5 61.Ra7 Ke8 62.Bh4 Qd7 63.Rh8 Kf7 64.Rd7 Ke6 65.Re7 Kf5 66.Rf8 Kg6 67.g4 Kh6 68.Rf6) 60...Qf5 61.Rg7 Qf7 (61...Ke8 62.Bd6 Qf7 63.Rh8 Kd7 64.Rf7 Kc6 65.Rb8 Kd6 66.Rb6) 62.Rf7 (62.Rf7 Ke8 63.Rc7 Kf8 64.Rh8) 1-0. Kuzubov,Y (2640) - Yuan,Qingyu (2370), Titled Tuesday, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3)

8.c4 dc4 9.Bc4 Nb6 10.Bd3 Nfd5 (10...Nbd5 11.0-0+= (11.Ne5 Nb4 12.Be2 Bf5 13.0-0) 11...Nb4 12.Bc4 Be6 13.Be6; 10...a4 11.0-0 a3 12.Bc1 Qd6 13.Ne5) 11.0-0 a4 12.Ba3 Bd7 (12...Qe8 13.Qc2) 13.Rc1 (13.Ne4=) 13...c6 14.bc6 Bc6 15.Ne4 (15.Qe2 Rc8+=) 15...Nf6 (15...Nd7 16.Qe2+=) 16.Nc5 (16.Nf6 Bf6 17.e4 Re8+/-) 16...Nbd5 (16...Nbd7!?+=) 17.Ne5+/- Re8 (17...Qe8 18.Qd2+/-) 18.Qf3+– e6 (18...Rb8 19.Rfd1+/-) 19.Rfd1 Ne7 20.Nc6 bc6 21.Ne4 (21.Rc4 Ned5+–) 21...Ne4 22.Be4 (22.Be7 Re7 23.Be4 Rc7+–) 22...h5 (22...f5 23.Bd3+/-) 23.Bc6 (23.Be7!? Re7 24.Bc6 Ra5+–) 23...Nc6+/- 24.Rc6 Qd7 (24...Qd5 25.Qd5 ed5 26.Rdc1+–) 25.Rdc1 (25.Bd6 Rac8 26.Rb6 Red8+–) 25...Rec8 (25...Rac8 26.Rc8 Rc8 27.Bc5+/-) 26.g3 (26.R6c4 Rab8+–) 26...Rc6+/- 27.Qc6 Qc6 28.Rc6 Rb8 (28...g5 29.Kg2+/-) 29.Bd6 Rb2 (29...Ra8 30.a3+/-) 30.a3+– h4 31.gh4 Bf6 32.Rc8 (32.Ra6!? Bh4 33.Bg3 Be7 34.Ra4 Ra2 35.Ra8 Kg7+–) 32...Kg7 33.Ra8 Ra2 (33...Bh4 34.Be5 Kh6 35.Bg3+–) 34.Ra4 Bh4 35.Be5 (35.Bg3 Be7 36.Ra7 Ba3 37.Be5 Kh6+–) 35...Bf6 (35...Kh6 36.Bg3 Be7 37.Ra7 Ba3 38.Rf7+–) 36.Bf6 (36.Kg2 Be5 37.de5 g5+–) 36...Kf6 37.Ra7 (37.Kg2 g5+–) 37...Kg7 (37...e5 38.de5 Ke5 39.Kg2+–) 38.h4 (38.a4 g5+–) 38...Kf6 39.Kg2 (39.a4 e5 40.de5 Ke5+–) 39...Kg7 (39...e5 40.Kf3+–) 40.Kg3 (40.a4 Kf6+–) 40...Kf6 (40...Ra1 41.a4+–) 41.a4 Ra1 (41...Ra3 42.a5+–) 42.a5 Rg1 (42...e5 43.d5+–) 43.Kf3 Rh1 44.Kg3 (44.a6 Rh4 45.Rb7 Rh8+–) 44...Rg1 45.Kh2 Rg4 (45...Ra1 46.Kg2+–) 46.Kh3 Rg1 47.a6 Rh1 (47...Ra1 48.e4+–) 48.Kg4 (48.Kg3 Rg1 49.Kf3 Ra1+–) 48...Rg1 (48...Ra1 49.Kf3+–) 49.Kf3 Ra1 50.Ra8 (50.e4 Ra4 51.e5 Kg7+–) 50...Kg7 (50...Ke7 51.Kf4+–) 51.a7 f5 (51...Kf6 52.e4+–) 52.Kf4 Ra5 53.f3 (53.Kg5 Ra1+–) 53...Kh7 54.e4 Ra4 (54...fe4 55.fe4 Kg7 56.d5 ed5 57.ed5 Ra4 58.Ke5+–) 55.Ke5 White intends d5 55...Ra6 56.Kf6 f4 (56...fe4 57.fe4 e5 58.Ke5 Kg7+–) 57.e5 Ra4 58.d5 Ra5 (58...Ra6 59.d6 Ra3 60.d7 Rd3 61.Rh8 Kh8 62.Kg6 Rd7 63.a8Q Rd8 64.Qd8) 59.de6 (59.d6 Ra4 60.d7 Rd4 61.Rh8 Kh8 62.Kg6 Rd7 63.a8Q Rd8 64.Qd8) 59...Ra6 (59...Ra1 60.e7 Ra6 61.e6 Rc6 62.Rh8 Kh8 63.e8Q Kh7 64.Qg6 Kh8 65.Qg7) 60.Rd8 (60.Rd8 Ra2 61.e7 Ra7 62.e8Q Ra6 63.Kg5 Kg7 64.Qd7; 60.Kf7 Ra2 61.e7 Rb2 62.Rh8 Kh8 63.e8Q Kh7 64.Qg8 Kh6 65.Qg6) 1–0. Spichkin,Alexander (2195) – Gabuzyan,Hovhannes (2380), Moscow Open E, 2011. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 a5)

8.c4 dc4 9.Nc4 Ne4 10.Bd3 Nd6 11.a4 Nc4 12.Bc4 c5 13.bc6 bc6 14.0-0 c5 15.Qe2 Bb7 16.d5 (16.Rfd1 Rb8+=) 16...Bb2= 17.Qb2 Nb6 18.e4 Nc4 19.Qb7 Nd6 20.Qb1 Rb8 21.Qc2 Rb4 22.e5 Nc4= 23.Rfd1 Qc7 24.Qe2 Rd8 25.Rac1 Nb6 26.d6+= ed6 27.ed6 Qc6 28.Qe7+/- Re8? 29.Ne5+– Re7 30.de7 (30.de7 Qe6 31.Rd8 Kg7 32.e8Q Qe8 33.Re8 Ra4 34.Rb8+–; 30.Nc6?! Rd7 31.Nb4 cb4+–) 1–0. Zherebukh,Y (2540) – Bernard,Ch (2360), Ch–Paris Int, Coubertin FRA, 2009.

8.c4 c5 9.bc6 bc6 10.Rc1 Ba6 11.Be2 c5 12.0-0 Rc8 13.cd5 Be2 14.Qe2 Nd5 15.Nc4 cd4 16.Nd4 Nb4 (16...a4 17.Rfd1+=) 17.a3+/- Nc6 (17...Na6 18.Rfd1+=) 18.Nb5 (18.Nc6 Rc6 19.Bg7 Kg7+/-) 18...Nce5 (18...Bb2 19.Nb2 Qb6 20.Rfd1+=) 19.Be5+/- Ne5 20.Rfd1 Qe8 21.Na5 Rc1 22.Rc1 Qa8 23.Nb3 Nc6 24.h3 Rb8 25.Nc5 Qa5 26.a4 Na7 (26...h6 27.Qe1+/-) 27.Nd4 Bd4 28.ed4 Qd8 29.Qc4 Nc8 30.Qc3 (30.Nb7 Rb7 31.Qc8 Qc8 32.Rc8 Kg7+/-) 30...Nd6 31.Rd1 (31.d5 Nf5 32.Qc4 Rc8+/-) 31...Nf5 32.a5 (32.d5 Rc8 33.Nb7 Qd7+/-) 32...Qd5 33.Qf3 Qf3 34.gf3 Rb5 35.a6 Ra5 36.f4 Kg7 37.Kg2 g5? (better 37...e6!?+/-) 38.fg5+- e5 39.de5 Rc5 40.Ra1 (40.a7 Ra5 41.Rd7 Kg6+-) 40...Rc8 41.a7?? (better 41.Kf3+-) 41...Ra8= 42.Kf3 Nd4 43.Ke4 Nb5 44.Ra5 Na7 45.Ra6 Kf8 46.f4 Kg7 47.Kf5 White plans e6 47...Kg8 48.h4 Kf8 49.Kf6 Kg8 50.f5 White intends e6 50...Kf8 51.e6 fe6 52.fe6 (52.Ke6?! Re8 53.Kf6 Nb5+-; 52.Re6?! Kg8 53.g6 Nb5+/-) 52...Kg8 53.e7 Rb8 (53...Rc8 54.Ra7 Rc6 55.Ke5+-) 54.Ra7 (54.Rd6 h5 55.Rd8 Rd8 56.ed8Q Kh7 57.g6 Kh6 58.Qd2) 54...Rb6+- 55.Kf5 Kf7 56.e8Q! Ke8 57.Rh7 Kf8 58.Rd7 Ra6 (58...Kg8 59.g6+-) 59.h5 Rb6 (59...Kg8+-) 60.h6 Kg8 61.g6 Rb5 62.Ke6 Rb6 63.Rd6 Rb8 64.Ke7 (64.Kf6 Rc8 65.h7 Kh8 66.Kg5 Kg7 67.Rd7 Kh8 68.Kh6 Rg8 69.hg8R Kg8 70.Rd8) 64...Rb7 65.Rd7 (65.Kf6 Rb8 66.h7 Kh8 67.Kg5 Rc8 68.Kh6 Rg8 69.hg8R Kg8 70.Rd8) 65...Rb8 66.Rd8 (66.Rd8 Rd8 67.Kd8 Kf8 68.Kd7 Kg8 69.Ke7 Kh8 70.g7 Kh7 71.Kf7 Kh6 72.g8Q Kh5 73.Qg3 Kh6 74.Qg6) 1-0. Petrosyan,M (2625) - Harshavardhan,G B (2395), PNWCC Super G60 Apr Gp1, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

8.c4 c6 9.a4 dc4 10.Bc4 Nb6 11.Ba2 (11.bc6!? Nc4 12.Nc4 bc6 13.Rc1+=) 11...cb5= 12.ab5 a4 (12...Bd7 13.Ba3=+) 13.Ba3 Bf5 14.0-0 (14.Ne5 Nfd5 15.Qf3 Be5 16.de5 Bd3=) 14...Bd3=+ 15.Re1 Bb5 (15...Nfd5 16.Rc1=+) 16.Ne5 (16.Qb1 Bc6=) 16...Nfd5=+ 17.Ne4 Rc8 (17...Be5 18.de5 Bc6 19.Qg4=+) 18.Rb1 Ba6 19.Qf3 (better 19.Bc5!?=) 19...Be5-/+ 20.de5 Bc4 21.Rb2 Re8 (21...Ba2!? 22.Ra2 Qc7-/+) 22.Bb1 (22.e6 fe6 23.Ng5 Nf6=+) 22...Bb3 (22...Rc6 23.Rc1=+) 23.Qh3 Nc4?? (better 23...Qd7 24.Qh4 Qc7=) 24.Ng5+- White intends e6 24...h5 25.e6?? (25.Bg6 Ne5 26.Qf5 Nf6 27.Qe5 Qc7+-) 25...Rf8?? (better 25...f5 26.e4 Nf4-+) 26.ef7+- Rf7?? (26...Kh8 27.Bg6 Nf6 28.Bh5 Qa5+-) 27.Bg6 (27.Nf7 Kf7 28.Qf3 Nf6 29.Rb3 ab3=) 27...Rg7 (27...Rc6 28.Bf7 (28.Nf7 Qa5 29.Ra1 Rg6 30.Rb3 ab3+-) 28...Kg7 29.Qf5+-) 28.Qh5 Nf6 29.Bf7 (29.Bf7 Rf7 30.Qf7 Kh8 31.Be7 Qe7 32.Qe7+-) 1-0. Zemerov,V (2265) - Grunberg,M (2400), Titled Tuesday 2nd Mar, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3)

8.Be2 Nb6 9.a4 Bf5 10.0-0 Ne4 11.c4 Nd2 12.Nd2 dc4 13.Nc4 Nc4 14.Bc4 c5 15.bc6 bc6 16.Qe2 Qd7 17.Rac1 Rfe8 18.Rfd1 White prepares the advance d5 18...Be6 (better 18...Bg4!? 19.f3 Be6+=) 19.d5!+/- cd5 (19...cd5 20.Bb5 Combination; 19...Bd5 20.Bg7 Decoy) 20.Bb5 Qd6 (20...Qd8!? 21.Bg7 Kg7 22.Be8 Qe8 23.Qb2 Kg8+/-) 21.Bg7+- Kg7 22.Be8 Re8 23.Qd2 (23.Qb2 f6+-) 23...Ra8 (23...Qb4 24.Qa2+/-) 24.Qd4 (24.e4 Qb4 25.ed5 Qd2 26.Rd2 Bd7+-) 24...f6 25.Qc5 (25.Rc5 Bf7+-) 25...Qd7 (25...Qc5 26.Rc5 Kf7 27.Rc7+/-) 26.h3 (better 26.e4!?+-) 26...Bf7+/- 27.e4! Qa4 (27...de4 28.Qc6 Double attack (28.Rd7 Pinning; 28.Rd7 Deflection; 28.Qc6 Decoy)) 28.ed5 Qd7 29.d6 e5 (better 29...ed6!? 30.Rd6 Qe7+/-) 30.Qc7 Rd8 (30...Be6 31.Qd7 Bd7 32.Rc7+/-) 31.Qa5 1-0. BabaRamdev (2735) - ThePatrick27 (2540), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.Be2 c5 9.bc6 bc6 10.0-0 c5 11.c4 Bb7 12.Rc1 a4 13.Ba3 dc4 (13...cd4 14.Nd4 Ne5 15.c5+=) 14.Nc4 (14.dc5 c3 15.Rc3 Nd5+=) 14...Ne4+= 15.Qc2 cd4 16.Nd4 Bd4 (16...Nec5 17.Rfd1 Be4 18.Qd2+=) 17.ed4 Ndf6 18.Bf3 Nd6 19.Bb7 Nb7 20.Rfe1 Nd5 21.Ne5 Nd6 (21...Re8 22.Qc6 Na5 23.Qa4+/-) 22.Nc6+- Qd7 23.Qc5 Nc8 24.g3 (better 24.Re5!? Nf4 25.Qb5+=) 24...Re8= 25.Ne5 Qd8 26.Rb1 Nf6 (26...e6 27.Rb7 Nce7 28.Qb5+=) 27.Rbc1 e6 (27...Nd5 28.Qc6 Ncb6 29.Bc5+=) 28.Qc6 (28.Qc7!? Qc7 29.Rc7+/-) 28...Ne7+= 29.Qf3 Nf5? (better 29...Ned5=) 30.g4+- Nd4 31.Qf4 (better 31.Qb7 Rf8 32.Bf8 Qf8 33.Rc4+-) 31...h6? (better 31...Rb8+/-) 32.Bc5 (32.Qh6?! Nd7 33.Qf4 Ne5 34.Re5 Qd5 35.Rd5 Ne2 36.Kf1 Nf4=) 32...Nb5?! (32...g5 33.Qd4 Qd4 34.Bd4 Nd5+-) 33.Rcd1 (33.Qh6 Nd5 34.Rb1 Rb8 35.Ng6 Qf6 36.Ne7 Re7 37.Qf6 Nf6 38.Be7 Nd5+-) 33...g5 34.Qf3 (34.Qf3 Nd6 35.Rd6+-; 34.Rd8 gf4 35.Ra8 Ra8-/+) 1-0. Harutyunian,T (2535) - Shevchenko,Kirill (2535), Euro Uni Rapid Open, 2019. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

6.e3 b6

7.a4 c5 8.b5 Nbd7 9.Be2 Bb7 10.0-0 Ne4 11.Ne4 de4 12.Nd2 cd4 13.ed4 e5 14.Nc4 ed4 15.Bd4 Bd4 16.Qd4 Nc5 17.Qc3 Qc7 18.Ne3 Ne6 19.Bc4 h5 20.a5 Rad8 21.a6 Bd5 ½–½. Grecescu,Gabriel Andrei (2405) – Kocsis,Levente (2380), ROM–chT div–A, 2006. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

7.a4 c5 8.dc5 bc5 9.b5 Bb7 10.c4 Nbd7 11.Be2 e5 12.Ne5+= (worse 12.Be5 Ne5 13.Ne5 Ne4-/+) 12...Ne5 13.Be5 Re8 14.Bb2 d4 15.0-0 de3 16.fe3 Re3 17.Bf3 Rb8 18.Bb7 Rb7 19.Nf3 Rd7 20.Qc2 Nh5 21.Bg7 Ng7 22.Rad1 Nf5 23.Rd7 Qd7 24.a5 (24.Rd1 Qe6=) 24...Ra3 (24...Nd4 25.Nd4 Qd4 26.Qf2=) 25.Rd1+= Qe7 26.Re1 (26.b6 A) 26...Ra5? 27.b7 Qb7 28.Rd8 Kg7 29.Qc3 Nd4 30.Nd4 (worse 30.Qa5 Nf3 31.gf3 Qf3+–) 30...Qb1 31.Kf2 Ra2 32.Ne2 Kh6 33.Qe3 Kg7 34.Qe5 Kh6 35.Rd7 Qf5 36.Qf5 gf5 37.Rf7+–; B) 26...ab6 27.ab6 Nd6+–) 26...Re3= 27.Qd2 Qe4 28.Re3 Ne3 (28...Qe3?? 29.Qe3 Ne3 30.b6 ab6 31.ab6+–) 29.Qe2 Qb1 30.Kf2 Ng4 31.Kg3 h5? (31...Nf6 32.Qe5 Kg7 33.h4=) 32.Qe8 (32.Qe7 Qb4 33.b6 (worse 33.Qa7 Kg7+–) 33...ab6 34.a6+–) 32...Kg7+– 33.h3 Nf6 34.Qe5 (better 34.Qb8!? Qc1 35.Qf4+– (35.Qa7?! Ne4 36.Kh2 Qf4 37.Kh1 Qc1 38.Kh2 Qf4 39.Kg1 Qe3 40.Kh2 Qf4=)) 34...Qb4= 35.Qa1 (35.Kh2!? Qc4 36.b6 ab6 37.ab6=) 35...Qc4-/+ 36.b6 Qa6 (36...ab6 37.ab6 Qb4 38.Qa7-/+) 37.Qb2 ab6 38.ab6 Qb7 39.Nd2 g5 (39...Qb8!? 40.Kf2 Qf4 41.Ke2 Kh7+=) 40.Kh2 g4 41.h4 Qb8 (41...Kg6 42.Qc2 Kg7 43.Qc5+–) 42.g3 Qb7?? (better 42...Kg6 43.Qc2 Kg7 44.Qc5 Qe8 45.Qg5 Kf8+–) 43.Nc4 (better 43.Ne4! Qe4 44.b7+–) 43...Kg6 44.Qc2?? (44.Nd6 Qf3 45.Ne8=) 44...Kg7+– 45.Qf5 Nd7 46.Nd6 (46.Qh5 A) worse 46...Nb6 47.Qe5 f6 48.Qb2+– (48.Qc5?! Nc4 49.Qc4 f5=); B) 46...Qf3 47.Qg5 Kf8=) 46...Qf3+= 47.Qf3 gf3 48.b7 Nb8 49.Kg1 Kf8 50.Kf2 Ke7 51.Ne4 c4 52.Kf3 Kd7 53.Ke3 (53.g4 hg4 54.Kg4 Kc7+–) 53...Kc6 (53...Kc7!?+–) 54.Kd4 Kb7 55.Nf6 Kc6 56.Nh5 (56.Kc4 Kd6+–) 56...Kd6? (better 56...Kb5!?+=) 57.Kc4 Ke5 58.Kd3 Kf5 59.Ke3 Kg4 60.Nf6 Kg3 61.h5 Nc6 62.h6 Ne7 63.h7 Ng6 64.Nd7 Kh4 (better 64...Nh8!?+–) 65.Nf8!+– Nh8 (65...Nf8 66.h8Q Double attack (66.h8Q Decoy)) 66.Kf4 Kh5 67.Kf5 f6 68.Ke6 (68.Kf6 Kh6 69.Ke6=) 68...Kg5= 69.Ke7 f5 70.Kd6 ½–½. Anton,T (2425) – Daianu,C (2150), Olanesti ROU (5), 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.a4 c5 8.dc5 bc5 9.b5 Nbd7 10.c4 Bb7 11.Be2 Qc7 (11...Qa5 12.Qc2=) 12.cd5 Nd5 (12...Bd5 13.Qc2=) 13.Bg7+= Kg7 14.Qb3 (14.Qc2 Nb4 15.Qc3 e5+=) 14...N7f6 (14...Qa5 15.0-0+=) 15.0-0+= e5 (15...Rfd8 16.Rfd1+=) 16.Qb2 Rfe8 (16...Nd7 17.Rfd1+=) 17.Rfc1 (17.Nc4 e4 18.Nfe5 Rad8+=) 17...Rac8 (17...Rad8 18.Nc4 e4 19.Nfe5+=) 18.Nb3 Attacks the isolani on c5 (18.Nc4 e4 19.Nfe5 Red8+/-) 18...Qe7 (18...Nd7 19.a5+=) 19.Nfd2 (19.Na5 e4 20.Nd2 Rc7+=) 19...Kg8 (19...Red8 20.Nc4 Nd7 21.Rd1+=) 20.Nc4 (20.Na5 h6+=) 20...Ne4 21.Nca5 Ba8 22.Nc6 Bc6 23.bc6 Red8 (23...Nb4 24.Rc4 Nd6 25.Rc5 Rc6 26.Rc6 Nc6 27.Bb5 Nb5 28.ab5+=) 24.Rc4 (24.Bd3 Ndf6 25.Be4 Ne4+/-) 24...f5+= 25.f3 Nef6 Black prepares e4 (25...Nd6 26.Rc5 Ne3 27.Ba6+/- (27.Re5 Qg5 28.Ba6 Rc6-/+)) 26.Rc5 e4 27.f4 (27.Bc4!? ef3 28.Rd1 Qe3 29.Qf2+/-) 27...Ne3= 28.Rac1 (28.Ba6 Rc7 29.Re1 Neg4+=) 28...Rc7 (28...Nfd5!? 29.Qd2 Qd6=) 29.Nd4= Ned5 (29...Nfd5 30.Nb5 Rcc8 31.Qe5+=) 30.Nb5+= Rcc8 31.Qe5 Qf7?? (better is 31...Kf7+=) 32.Nd6 (32.Bc4 Kf8+–) 32...Qe7 (32...Rd6 33.Qd6 Kg7+–) 33.Nc8 Rc8 34.Rd5 Qa3 (34...Nd5 35.Qd5 Kf8 36.Qd4+–) 35.Rdc5 Qe3 (35...Kg7 36.c7 Qe3 37.Kf1+–) 36.Kh1 (36.Kf1 Rf8+–) 36...Qe2 (36...Kg7 37.R5c2 Re8 38.c7 Re5 39.fe5+–) 37.Qf6 Qa2 38.c7 (38.c7 Qf7 39.Qd8 Qf8 40.Rd1 h5 41.Qc8 Qc8 42.Rd8 Qd8 43.cd8Q Kf7 44.Qd7 Kf6 45.Rc6) 1–0. Pitzanti,Matteo (2115) – Kyc,Jerzy (2235), 27. Cracovia Open A Poland, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.b5 a6 8.a4 c6 9.bc6 Nc6 10.c4 Bf5 11.Qb3 Na5 12.Qa3 dc4 13.Nc4 Nc4 14.Bc4 Ne4 15.Be2 Qd6 16.0-0 Rfc8 17.Rfc1 Qa3 18.Rc8 Bc8 19.Ra3 Be6 20.Ra1 Bb3 21.Bd3 Nd6 (21...f5 22.h3=) 22.Nd2+= Bd5 23.Rc1 Ne8 24.Kf1 e6 25.Ba3 Bf8 (25...f5!?+=) 26.Bf8+/- Kf8 27.Rb1 b5 28.ab5 ab5 29.Bb5 Nd6 30.Be2 (30.f3 Ra2 31.Ke1 Nb5 32.Rb5 Ke7+/-) 30...Ra2 31.Rd1 Ne4 32.Ne4 Be4 33.f3 Bb7 34.Rb1 Ba6 35.Ba6 Ra6 36.Kf2 Ra2 37.Kg3 Ke7 38.h4 h5 39.Rb7 Kf6 40.Rd7 Rd2 41.Rc7 Re2 42.e4 Rd2 43.Rd7 Kg7 44.Kh3 Rd3 45.Kh2 Rd2 46.Kg1 Kf8 47.Kh2 Ke8 (47...Kg7 48.e5 Kf8+/-) 48.Rd6+/- Ke7 49.e5 Ke8 50.Kg3 ½-½. Vokoun,J (2125) - Petrova,Kristyna (2240), 21st Olomouc IM1, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.b5 Bb7 8.c4 a6 9.a4 c6 10.bc6 Nc6 11.Be2 Na5 12.0-0 dc4 13.Nc4 Bf3 14.gf3 Nc4 15.Bc4 b5 (15...a5 16.Qb3+=) 16.ab5 ab5 17.Be2 b4 (17...Qd5 18.Qd2=) 18.Qb3 Rb8 19.Rfc1 e6 20.f4 (20.Rc5 Nd5=) 20...Nd5 (20...Qd5 21.Qa4=) 21.Bf3 Nc3 (better is 21...Qd7!?=) 22.Bc3+/- bc3 23.Qc3 g5 24.fg5 e5 25.de5 Qg5 26.Bg2 Be5 27.Ra5 Rfe8 28.f4 Bc3 29.Rg5 Bg7 30.Kf2 Rb2 31.Kf3 Rb3 32.Re1 Kf8 33.Rd5 Bf6 34.Bf1 Bh4 35.Re2 Bd8 36.Rd4 Bb6+= 37.Re4 Re4 38.Ke4 f5 39.Kf5+/- Be3 40.Bg2 Rb5 41.Kg4 h5 42.Kg3 Bd4 43.Rd2 Rb4 44.Rd3 h4 45.Kh4 Be5 46.Kh5 Bf4 47.h4 Kg7 ½–½. Arkell (2505) – Bronstein,David (2445), Hastings, 1996.

7.b5 Bb7 8.c4 Nbd7 9.Be2 c5 10.bc6N Bc6 11.0-0 dc4 12.Bc4 b5 13.Bd3 Nc5 14.Bc2 Nce4 15.Ne5 Bb7 16.Nb3 Rc8 17.f3 Nc3 18.Qd3 (18.Qd2 Nfd5=) 18...Na4 (18...Nfd5 19.Qd2+=) 19.Ba3 (19.Rab1 Nd5 20.Rfc1 a6-/+) 19...a6 (19...Nd5 20.Rf2 b4 21.Bc1=) 20.Rac1 Nd5 21.Qd2 Ndc3 22.Bd3 Be5 23.de5 a5 24.Bc5 Nc5 (24...Na2 25.Qa2 Qd3 26.Rfd1-/+) 25.Rc3= Nb3 (worse is 25...Nd3 A) 26.Qd3?! b4 27.Qd8 Rfd8 28.Rc8 Rc8+= (worse is 28...Bc8 29.Na5 Bd7 30.Rb1+/-); B) 26.Rd3 Qb6 27.Qa5 Qa5 28.Na5+/-) 26.Rb3 b4 27.e6 (27.Rd1 Qc7=) 27...f6 (27...f5 28.Rd1+=) 28.e4 Qd4 29.Qf2 Rfd8 (29...Rcd8 30.Bb5 Bc8 31.Rb2-/+) 30.a3+= Rc3 31.Qd4 (31.Rc3 bc3 32.Bb5 c2+=) 31...Rd4-/+ 32.Rc3 bc3 33.Bc2 Bc8 34.Rd1 (34.Re1 Be6 35.Re3 Rc4-/+) 34...Rd1–+ 35.Bd1 Be6 36.Kf2 Bc4 (36...Ba2!?-/+) 37.Ke3 e5 (37...Bf1 38.Kd4+=) 38.Be2= Be6 (38...Bb3 39.Kd3=) 39.Kd3 Bc4 40.Ke3 (40.Kc4 c2 Passed pawn) 40...Be6 ½–½. Nanu,Costica_Ciprian (2505) – Grigore,George_Gabriel (2495), Amara ROM, Men Championship, 2007. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

7.b5 Bb7 8.Be2 c6 9.a4 a6 10.bc6 Nc6 11.0-0 Ne4 12.c4 Nd2 13.Nd2 Na5 14.cd5 Qd5 15.Bf3 Qd7 16.Bb7 Qb7 17.Bc3 Nc6 18.Qb3 Rab8 19.Rab1 Rfc8 20.Rfc1 b5 21.Ne4 (better is 21.ab5!? Qb5 22.Qa3+=) 21...Nd4-/+ 22.Bd4 Rc1 (worse is 22...Qe4 23.Rc8 Rc8 24.Bg7 Kg7 25.ab5 ab5 26.Qb5=) 23.Rc1 Qe4 24.Bg7 Kg7 25.Qc3 Kg8 26.ab5 ab5 27.Qc7 Qb7 28.Qe5 b4 29.h3 b3 30.Rb1 b2 31.Qd4 Qc6 32.Qd2 Qb5 33.Kh2 Qf5–+ (33...Qf5 34.Qe1 Rc8–+) 0–1. Maia,Marco Aurelio Ferre (2115) – Von Buelow,Georg (2365), Rio de Janeiro Andrade op, 2008. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.c4 a5 8.b5 a4 9.Rc1 Bb7 10.Ba3 Re8 11.Ne5 Nfd7= 12.Ndf3 Ne5 13.Ne5 c5 14.Qc2 cd4 15.ed4 f6 16.Nf3 e5 17.Be2 e4 18.Nd2 f5 19.0-0 (better is 19.Bb2!?=) 19...Bd4-/+ 20.cd5 Nd7 (better is 20...Bd5!? 21.Nc4 Qf6+=) 21.Nc4= Qh4 (21...e3 22.f4 Rc8 23.Qd1=) 22.Nd6 (better is 22.Rcd1 Bc5 23.Bc5 bc5 24.Rfe1+/-) 22...Ne5?? (better is 22...Be5 23.g3 Qe7+=) 23.Nb7+– f4 24.Kh1 f3+= 25.gf3 Nf3?? 26.Bf3. Sergeev,Vladimir (2525) – Kolosowski,Mateusz (2435), XXVII Miedzynarodowy Puchar Wojewody, Legnica Poland, 2011.

7.c4 a5!? 8.b5 c6=.

7.c4 Nc6 8.b5 Na5 9.Bd3=.

7.c4 Nbd7 8.Be2 c5 9.dc5 bc5 10.b5 Bb7 11.0-0 Qc7 12.Rc1 (12.Qb3 Rfd8=) 12...e5 (12...a6!? 13.a4 ab5 14.ab5 Ng4 15.Bg7 Kg7=) 13.cd5+= Bd5 14.Bc4 (14.Qc2 Ba2 15.Ne5 Ne5 16.Be5 Qe5 17.Qa2 Rfd8+=) 14...Rfd8 (14...a6!? 15.a4 ab5 16.ab5 Bb7=) 15.Qb3+= Bc4 16.Nc4 The pressure on e5 grows 16...Re8 (16...e4!? 17.Ng5 Ng4+=) 17.Rfd1+– h6 (17...Re7+–) 18.h3 (better is 18.Rd6!?+–) 18...e4+/- 19.Nfd2 Rad8 20.Qc2 g5 (20...Re6 21.a4+/-) 21.Nf1 Nb6 22.Rd8 Qd8 (22...Rd8 23.Ng3+/-) 23.Ng3 (23.Rd1 Qc7+–) 23...Qd5 24.Nd2 (24.Bf6 Bf6 25.Nd2 Be7 26.Nde4 Qe5+–) 24...Qa2 25.Nf5 (25.Ra1 Qd5 26.Ra7 c4+/-) 25...Qd5+= 26.Ng7 (26.g4 Qd3+=) 26...Kg7= 27.Nf1 Nbd7 (27...Kg6 28.Ng3=) 28.Rd1 Qe6 (28...Qb7 29.Ng3 Re6 30.Bc3=) 29.Qc3 (29.Ng3 Kg8+/-) 29...Ne5 (29...Kf8 30.Ng3+=) 30.Ng3+= Kg6?? (30...Kh7 31.Qc2+=) 31.Ra1?? (better is 31.f4 ef3 32.Qc2 Kg7 33.Rd6+–) 31...Qc4 (31...Qd5 32.Ra6 g4 33.h4+/-) 32.Ra6 Qb5? (better is 32...Qc3!? 33.Bc3 Ned7+/-) 33.Rd6 Qb7? (33...Kg7 34.Rf6! Kf6 35.Ne4 Kg6+–) 34.Qe5 (better is 34.f4 ef3 35.Qc2 Kg7 36.Nf5 Kg6 37.Ne7 Kg7 38.Be5 Qe7 39.Bf6 Qf6 40.Rf6 Kf6 41.Qc3 Re5 42.gf3+–) 34...Re5+/- 35.Be5 Kh7 36.Rf6 Qd5 37.Rf5 Qd7 (better is 37...Qa2!?+=) 38.Bc3+/- c4 (38...a5 39.Rc5 a4 40.Ne4+–) 39.Re5 (39.Bd4 Qb7+–) 39...Qd3 (39...Kg6!? 40.Rc5 Qe6+/-) 40.Ne4+– f5 (40...Kg6 41.g4 a5 42.Kg2+–) 41.Nf6 Kg6 42.Nd5 Kf7?? (better is 42...h5+–) 43.Re7 Kg8 44.Bd4 Qa3 45.Ra7 (better is 45.Rc7 Qc1 46.Kh2 Qa3 47.Nf6 Kf8 48.Bc5 Qc5 49.Rc5 Kf7+–) 45...Qd6 (45...Qa7 46.Ba7 Kf7 47.Bd4+–) 46.Ne7 (better is 46.Nf6 Kf8 47.Bc5 Qc5 48.Nd7 Ke7 49.Nc5 Kf6 50.Na4+–) 46...Kf8 47.Nf5 Qb4 (47...Qc6 48.Bg7 Ke8 49.Bc3+–) 48.Ng7 (better is 48.Kh2 c3 49.Rc7+–) 48...c3 (48...Qb1 49.Kh2 Qg6+–) 49.Bc5! Qc5 1–0. Labedz,Patrycja (2100) – Calugar,Arthur (2330), Dallas USA, UT IM Nov, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

7.Be2 Ba6 8.b5 Bb7 9.0-0 c5 10.c4 Nbd7 11.Rc1 e6 12.cd5 Nd5 13.Nc4 Qe7 14.Nfe5 Ne5 15.de5 Rad8 16.Qb3 Ba8 17.f4 Qc7 18.Bf3 Ne7 19.Ba8 Ra8 20.Rfd1 Rad8 21.e4 Nc8 22.Rd8 Rd8 23.Rd1 Rd7 24.a4 Bh6 25.g3 Qd8 26.Rd7 Qd7 27.Kf2 Bf8 28.Ke2 Be7 29.Qd3 Qd3 30.Kd3 Kf8 31.g4 Ke8 32.f5 Bg5 33.f6 Kd7 34.Bc3 Bf4 35.h3 Kc7 36.Ke2 Kb7 37.Bd2 Bd2 38.Kd2 Kc7 39.h4 h6 40.Kc3 Kb7 41.h5 g5 42.Nd2 1–0. Kunte,A (2510) – Kazhgaleyev,M (2625), 8th Asian Continental Open, Subic Bay P, 2009.

7.Be2 Ba6 8.b5 Bb7 9.0-0 Nbd7 10.c4 dc4 11.Nc4 c5 12.Qb3 Qc7 13.Rac1 Rac8 14.Nfe5 Ne5 15.de5 Nd7 16.f4 Rfd8 17.Rfd1 Nf8 18.a4 Rd1 19.Rd1 Rd8 20.Bf3 (20.Qc2!?+=) 20...Bf3= 21.gf3 Rd1 22.Qd1 Qd7 23.Qd7 Nd7 24.Kf2 Bf8 25.Ke2 e6 26.Kd3 Be7 27.a5 Kf8 28.ab6 (28.a6 Bd8+=) 28...ab6= 29.Bc3 Ke8 30.Bb2 Kd8 31.Bc3 ½–½. Gochev,Mladen (2255) – Lalev,Dimitar (2375), Sunny Beach BUL, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.Be2 c5 8.bc5 bc5 9.c4 Nbd7 10.0-0 Rb8 11.Qc1 Ba6 12.dc5 Nc5 13.Bd4 Ne6 14.Ba7 Ra8 15.Bd4 Nd4 16.Nd4 e5 17.N4f3 d4 18.ed4 e4 19.Ne1 Qd4 20.Nb3 Qe5 21.Qe3 Qb2 22.Rd1 Bh6 23.f4 ef3 24.Qf3 Rae8 25.Bd3 Nd7 26.Qh3 Be3 27.Kh1 Bc8 28.Nc2 Ba7 29.Nb4 Ne5 30.Qg3 Ng4 31.Rd2 Qg7 32.Nd5 f5 33.h3 (better is 33.c5!?=) 33...Ne3-/+ 34.Re1?? (better is 34.Rc1-/+) 34...Nd5–+ 35.Re8 (35.cd5?? f4 36.Re8 fg3–+) 35...Re8 36.cd5 f4 37.Qf3?? (37.Qf4 Re1 38.Bf1–+) 37...Re1 38.Bf1 Bg4 39.Qg4 (39.Qf4 g5 40.Qg4 Rf1 41.Kh2 Bg1 42.Kh1 Be3 43.Kh2 Qe5 44.g3 Bd2 45.Kg2–+) 39...Rf1 40.Kh2 Bg1 41.Kh1 Bf2 0–1. Khatoev,E (2425) – Yuffa,D (2470), ch–RUS Juniors, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

7.Be2 c5 8.bc5+= bc5 9.dc5 Na6 10.Bd4 Qa5 11.0-0 Nc5 12.Nb3 Nb3 13.cb3 (13.ab3!? Qc7 14.Ra2+=) 13...Ba6 14.Qe1 Qa3 15.Ba6 Qa6 16.Qb4 e6 17.Rfc1 Rfb8 18.Qd2 Ne4 19.Qb2 Bf8 20.a3 Qb5 21.Rab1 a5 22.Ne5 h5 (22...f6 23.Ng4=) 23.a4 (23.f3!? Nd6 24.Rc7+/-) 23...Qb7= 24.g4 (24.f3 Nd6=) 24...hg4 (24...f6 25.Ng6 hg4 26.Nf8 Rf8 27.b4-/+) 25.Ng4 Qe7 (25...Bb4 26.Ra1=) 26.Nf6 (better is 26.f3!? f5 27.Rc6 fg4 28.fe4+=) 26...Nf6+= 27.Bf6 Qb4 28.h3 Rc8 29.Rd1 Qa3 (29...Be7 30.Bh8 Kf8 31.Qd4+=) 30.Qd4 (better is 30.Qa3!? Ba3 31.Rd4=) 30...Rab8 31.Qh4 Bg7 32.Bg7 Kg7 33.Qd4 Kg8 34.Qb2 Qb2 35.Rb2 Rc3 36.Rdb1 Rb4 37.Kf1 d4 38.ed4 Rh3 39.Ke2 Rd4 40.b4 Rb4 (40...Re4!? 41.Kd2 Kg7+=) 41.Rb4+= ab4 42.Rb4 Ra3 43.f4 Kg7 44.Kd2 Kf6 45.Kc2 e5 46.fe5 Ke5 47.Kb2 Rd3 48.a5 Rd6 49.Kb3 g5 50.Ra4 Ra6 51.Kc4 f5 52.Kb5 Ra8 53.Kb6 g4 54.Kb7?? (better is 54.a6+=) 54...Rg8–+ 55.a6 g3 56.Ra5 Kf6 57.a7 g2 58.Ra1 (58.Ra6 Ke5 59.Ra1 f4 60.Re1 Kf5–+) 58...f4 59.Rg1 f3 0–1. Peric,Slavisa (2245) – Barbot,Pierre (2315), Sautron FRA, 1st Closed IM, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.Be2 c5 8.bc5 bc5 9.dc5 Na6 10.Bd4 Qa5 11.0-0 Nc5 12.Nb3 Nb3 13.ab3 Qc7 14.Be5 Qb6 15.Qd4 Bf5 16.Ra6 Qb7 (16...Qd8 17.c3+/-) 17.Ra2 (17.Rfa1 Qc8 18.c3 Rd8+/-) 17...a5 18.Rfa1 Rfc8 19.Ne1 Ne8 (19...a4 20.Ra4 Ra4 21.Ra4+/-) 20.Bg7 Ng7 21.Ra5 Ra5 (21...Ne6 22.Qd2 Ra5 23.Ra5+/-) 22.Ra5 Bc2 (22...Ne6!? 23.Qd5 Qb4+–) 23.Ba6 (23.Rd5?! Ne6 24.Qd2 Qb3+=; 23.Qd5?! Qd5 24.Rd5 Bb3+=; 23.Nc2?! Rc2 24.Qd1 Rb2 25.Rd5 h6+–) 23...Qc7 24.Qd2 (24.Nc2?! Qc2 25.Qd5 Ne8+/-) 24...Qc3?? (24...Bb3 25.Bc8 Qc8+–) 25.Rd5 (25.Rd5 Qd2 26.Rd2+–) 1–0. Lindberg,Bo (2395) – Tuomainen,Felix (2205), Hasselbacken Open SWE, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 b6 5.e3 Bg7 6.Bb2 0-0)

7.Be2 c6 8.0-0 a5 9.ba5 Ra5 10.c4 Ra8 11.Qb3 Be6 7.Be2.

7.Be2 Nbd7 8.c4 dc4 9.Nc4 Bb7 10.0-0 c5 11.dc5 bc5 12.b5 Qc7 13.h3 Rfd8 14.Qb3 Bd5 15.Rfd1 Nb6 16.a4 e6 17.Be5 Qb7 18.Qc3 Ne4 19.Qc2 Nc4 20.Bc4 Bc4 21.Qc4 Rd5 22.Bg7 Kg7 23.Re1 (23.Ne1 f5=) 23...f5= 24.a5 Rad8 25.Rab1 R8d6 26.h4 (26.Rec1 Qc7 27.Qa2 Kg8=) 26...h6 27.Qc2 (27.Rec1 Qc7=+) 27...Kh7 28.Rb2 g5 29.hg5 hg5 30.b6 (30.Reb1 g4 31.Ne1 Nd2=+) 30...ab6 (30...g4 31.ba7 Qa7 32.Reb1 Qa5 33.Ne1-+) 31.Reb1=+ g4 32.Rb6 Rb6 33.Rb6 Qd7 34.a6?? (better 34.Qb2 Rd1 35.Kh2 Qc7 36.Ne5 Nf2 37.g3-/+ (37.Re6?? Rh1 38.Kg3 Ne4 39.Kf4 Rf1 40.Qf2 Rf2)) 34...Rd1-+ (34...gf3? 35.Rb7+-) 35.Kh2 Qc7 (35...gf3 36.Rb7 Kg6 37.Rd7 Rd7 38.gf3+-) 36.Ne5 (36.g3 Qb6 37.Qd1 Qa6 38.Qd7 Kh6 39.Nd2-+) 36...Qe5 (36...Qb6 37.Qd1 Nf6 38.Qa4+-) 37.g3 Rd2 38.Qd2 Nd2 39.a7 Nf3 40.Kg2 Qa1 41.Rb7 Kg6 42.Rb1 Qb1 43.a8Q Qg1 0-1. Kuzubov,Y (2640) - Ali,Muhammad Lutfi (2395), Titled Tuesday, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 Nbd7 8.c4 c5 9.bc5 bc5 10.0-0 Bb7 11.Rc1 Rc8 12.Qa4 Bc6 13.Qa3 (13.Qa7?? Ra8 14.Qa3 Ra3 15.Ba3 dc4 16.Bc5 Nc5 17.dc5 Nd7-+) 13...Qb6 14.dc5 Qc5 (14...Nc5? 15.Bf6 Bf6 16.Rb1+-) 15.Nd4 Bb7 16.N2b3 Qa3 17.Ba3 dc4 18.Na5 Bd5 19.Be7 Rfe8 (better 19...Nb6 20.Bf8 Kf8+/-) 20.Ba3 (better 20.Bf6!? Nf6 21.Bc4+/-) 20...Ne5 (20...Nb6 21.Rfd1=+) 21.Nb5 Bf8 (21...Ne4 22.Rfd1 (22.Na7? Ra8-+) 22...Be6 23.Rd4= (23.Na7? Ra8-+)) 22.Nd6 The pressure on the isolated pawn grows (better 22.Bf8!? Kf8 23.Nd6+= (worse 23.Na7 Ra8-/+)) 22...Bd6=+ 23.Bd6 Nd3 24.Rc2 Ne4 (24...g5 25.Ba3 Nd7 26.Rd1=) 25.Ba3= h5 (25...f5!?=) 26.f3+= Nf6 27.e4 Be6 28.Nb7 Rb8 29.Nd6 Red8 30.Nc4 Nf4 31.Rfc1 Ne2 32.Re2 Rbc8 33.Ne3 Nd7 34.Rec2 Nb6 35.Be7 Rd3 36.Kf2 Rc2 37.Rc2 (37.Nc2?! Ba2 38.Bf6 Rd2 39.Kg3 Be6=) 37...Rd4 38.Kg3 (38.Bf6 Ra4 39.Nd5 Kh7+/-) 38...f5 39.Kf4 Ra4 40.a3 fe4 41.fe4 Nc4 42.Nc4 Rc4 43.Re2 Kf7 44.Bb4 Bg4 45.Re3 Rc2 46.h3 Bc8 47.g4 a6 (47...hg4 48.hg4 Rg2 49.Rc3 Bg4 50.Rc7 Kf6 51.Bc3 Ke6 52.Rc6 (worse 52.Ra7 g5 53.Kg5 Bf5 54.Kf4 Rg4 55.Kf3 Re4+/-) 52...Kf7 53.Rf6 Kg7 54.Ra6 Kh6 55.Bd4+-) 48.Rf3 hg4 49.hg4 Rg2 50.g5 Rg4 (50...Ke8 51.Rc3 Bd7 52.Rc5+-) 51.Ke5 Kg7? (better 51...Ke8 52.Rf8 Kd7 53.Rf7 Kc6+-) 52.Bf8 Kh7 53.Bh6 (53.Bh6 Re4 54.Ke4 Bb7 55.Ke3 Bf3 56.Kf3+-) 1-0. Harutyunian,T (2555) - Mamedjarova,T (2310), Tbilisi GEO, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

7.b5 c5

8.c4 cd4 9.ed4 (9.Bd4 a6=) 9...Nbd7 10.Be2 Bb7 11.0-0 dc4 12.Nc4 Nd5 13.Nfe5 Ne5 14.de5 Nf4 15.Bf3 Qd1 16.Rfd1 (16.Rad1 Bf3 17.gf3 Rac8-/+) 16...Bf3-/+ 17.gf3 Rac8 18.Ne3 Rfd8 19.Rd8 0–1. Bibik,J (2255) – Shimanov,A (2660), Pardubice CZE, Czech Open Rapid, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.c4 Nbd7 9.Be2 Bb7 10.0-0 e6 11.a4 a5 12.dc5 Nc5 13.Nb3 Nfe4 14.Nbd4 (14.Bg7 Kg7 15.Nc5 Nc5=) 14...Re8 15.Rc1 ½–½. Vorotnikov,Vladislav V (2470) – Schaefer,Michael (2170), Triesen LIE, 2013. (=1.d4 Nf6 2.Nf3 d5 3.e3 g6 4.Nbd2 Bg7 5.b4 0-0 6.Bb2 b6 7.b5 c5)

8.dc5 bc5 9.Be2 a6=.

8.bc6 Nc6

9.a3 Bb7 10.Bd3 Rc8 11.0-0 Na5 12.Qe2 Ne4 13.Rac1 Nc3 14.Bc3 Rc3 15.Nb1 Rc7 16.c3 Qd6 17.Qa2 Rfc8 18.Nfd2 (18.a4!?-/+) 18...e5-+ 19.Rcd1 e4 20.Be2 Qe6 21.Nb3 Nc4 22.Kh1 f5 23.a4 Bf8 (23...Bf6 24.Rc1-+) 24.N3d2-/+ Na5 25.Nb3 Nc4 26.N3d2 Na5 27.Rde1?? (27.Nb3 Be7 28.Na5 ba5 29.Rd2-/+) 27...Bd6 28.Bb5 Kg7 29.Nb3 Nc4 30.a5 h5 31.Rc1 h4 32.N1d2 Nd2 33.Qd2 Qf7 34.a6 (better 34.f4!?-/+) 34...Bc6-+ 35.c4 Bb5 36.cb5 Qd7 37.Qe2 Rc4 38.Rb1 (38.h3 Qb5 39.Nd2 Qb2-+) 38...Rc2 39.Qd1 (39.Nd2 f4 40.Rfd1 Qf5-+) 39...Qb5 40.Nc5 Qc4 41.Nb7 (41.Nd7 Qa6 42.Kg1 Qd3-+) 41...Bb8 42.f4 (42.Kg1 h3 43.g3 Qa6-+) 42...Qa6 (better 42...ef3 43.Qf3 h3 44.gh3 Qa6 45.Nc5 bc5 46.dc5 R2c5 47.Ra1-+) 43.Nc5 Qe2 (43...bc5?! 44.Qc2 c4 45.Ra1=) 44.Qe2 Re2 45.Ne6 (45.Nd7 Bd6 46.Ne5-+) 45...Kf6 46.Ng5 Re3 47.Nh7 Kg7 48.Ng5 Rc2 49.Rb5 (49.Rbc1 Ree2 50.Rc2 Rc2-+) 49...Kf6 50.Nh3 Ke6 51.Ng5 Kd6 52.Rbb1 (52.Nf7 Kc6 53.Rbb1 Ree2-+) 52...Ree2 53.Rg1 Ke7 54.Nh3 Red2 55.Rbd1 (55.Rbe1 Rd4 56.Ng5 Bf4-+) 55...a5 56.Rb1 (56.Rd2 Rd2 57.Re1 a4-+) 56...Bc7 57.Rbc1 (57.Rbe1 a4 58.Ng5 Kd7-+) 57...a4 58.Ra1 (58.Rce1 a3-+) 58…Rd4 0-1. Kovalenko,I (2655) - Chen,Qi b (2435), World Rapid, 2018. (=1.d4 Nf6 2.Nf3 d5 3.Nbd2 g6 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.Bb5 Nb4 (9...Bb7 10.0-0=) 10.c3 Ba6 11.Ba6 Na6 12.Qa4 Nc7 13.c4 dc4 14.Qc4 (14.Nc4? b5 15.Qb3 bc4 16.Qc4 Ncd5-+) 14...Ncd5 15.0-0 Rc8 16.Qa6 Qc7 (16...Rc2 17.Rab1=) 17.Rfc1+= Qb8 18.Ne5 Nb4 (18...Qa8 19.Qe2+=) 19.Qa4+/- a5 20.a3 (20.Ba3 Nbd5 21.Nc6 Qb7+/-) 20...Nbd5+= 21.Qb5 e6 (21...Qd6 22.Rc8 Rc8 23.e4+=) 22.Ndc4 (better 22.Nc6 Qd6 23.e4+/-) 22...Ne4? (better 22...Rc7+=) 23.Nd7+- Qb7 (23...Qa8 24.Nf8 Bf8 25.f3+- (25.Nb6 Nb6 26.Rc8 Nc8=+)) 24.Nf8 Bf8 25.Na5! Qe7 (25...ba5 26.Qb7 Pinning (26.Qb7 Deflection)) 26.Nc6 (better 26.Rc8 ba5 27.Qa5+-) 26...Qh4 27.Qe2 Bd6 28.g3 Qh3 29.Ne5 Ndc3 (29...Rc7+-) 30.Qf3 (30.Qa6!? Kg7 31.Rc2 Rc7+-) 30...Be5? (30...Ng5 31.Qg2 Ne2 32.Kf1 Qg2 33.Kg2 Nc1 34.Rc1 (34.Bc1?! Be5 35.de5 Ne4=) 34...Rc1 35.Bc1+/-) 31.de5?? (better 31.Bc3 Nc3 32.de5+-) 31...Ng5 (31...Nd2!? 32.Qg2 Ne2 33.Kh1 Qg2 34.Kg2 Nc1 35.Rc1 Nc4+/-) 32.Qg2+/- Ne2 33.Kh1 (better 33.Kf1!? Qg2 34.Kg2 Nc1 35.Rc1 (35.Bc1?! Ne4=) 35...Rc1 36.Bc1+/-) 33...Nc1= 34.Rc1 Rc1 35.Bc1 Qg4 36.e4 (36.Qa8 Kg7 37.a4 Qe4 38.Qe4 Ne4=) 36...Qd1=+ (36...Ne4? 37.f3 Qh5 38.h4+- (38.fe4?! Qd1 39.Qg1 Qf3 40.Qg2 Qd1 41.Qg1 Qf3 42.Qg2 Qd1=)) 37.Qg1 Qf3 (37...Ne4!? 38.Qd1 Nf2 39.Kg2 Nd1=+) 38.Qg2= Qd1 39.Qg1 Qf3 (39...Ne4 40.Qd1 Nf2 41.Kg2 Nd1 42.g4=+) 40.Qg2= Qd1 ½-½. BabaRamdev (2670) - lucasmito (2510), Rated Blitz game, lichess.org, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 b6)

9.c4 Ba6 10.Be2 (10.cd5 Bf1 11.dc6 Bg2=) 10...Rc8+= 11.cd5 Be2 12.Qe2 Nd5 13.0-0 Na5 14.Rfc1 Qd7 15.Nb3 Qa4 16.Na5 Qa5 17.Rc2 Nb4 18.Rc3 Rc3 (18...Qa4 19.Qd2=) 19.Bc3+= Qa6 20.Kf1 Qe2 21.Ke2 Nd5 22.Bd2 Rc8 23.Kd3 f5 24.a4 (24.e4 fe4 25.Ke4 Nc3 26.Kd3 Nb5=) 24...a6 (24...Nf6 25.a5=) 25.Rb1 Bf6 26.h3 Kf7 27.g4 e6 28.Ne5 Be5 29.de5 Rd8 30.Ke2 Rc8 31.Kd3 Rd8 32.Ke2 ½–½. Arkell,K (2520) – Howell,D (2590), British Rapid, Halifax ENG, 2008.

9.c4 Bb7 10.Be2 Rc8 11.0-0 dc4 12.Nc4 Qd5 13.Na3 Rfd8 14.Qb3 Qf5 15.Nc4 Ne4 16.Rad1 Na5 17.Na5 Qa5 18.Rc1 Qf5 (18...Bd5!? 19.Bc4 e6 20.Bd5 Qd5=) 19.Qa3+= Ng5 20.Ng5 (better is 20.Nd2!?+=) 20...Qg5+= 21.f3 Bh6 22.Kf2 a5 23.g3 e6 24.Rc8 Rc8 25.Rc1 Rc1 26.Bc1 Qd5 27.Qa4 Bf8 28.Qc4 Qd6 29.Qb5 Qc7 30.Qc4 Bc6 31.Bb2 b5 32.Qc3 b4 33.Qc4 Qb6 34.e4 Bg7 35.Ke3 e5 36.Bd1 a4 37.Qc5 Qc5 38.dc5 Kf8 39.Bc1 Bh6 40.f4 ef4 41.gf4 g5 42.Bd2 gf4+= 43.Kd3 b3! 44.ab3 a3 45.b4 Bg7 46.Bc3 Bc3 47.Kc3+= Be4 48.Kb3 f3 49.Ka3 f2 50.Be2 Bg2 51.b5 f1Q 52.Bf1 Bf1 53.Kb4 Ke7 54.Ka5 Kd7 55.Kb6 f5 56.c6 Kc8 57.Kc5 f4 58.b6 f3 59.Kd6 Ba6 0–1. Cherednichenko,Elena (2130) – Nasuta,Grzegorz (2235), Miedzynarodowy Festiwal Szachowy Poland, 2011.

9.Be2 Ne4 10.0-0 Bf5 11.Ne4 Be4 12.Nd2 Bf5 13.c4 Rc8 14.a3 dc4 15.Nc4 b5 16.Nd2 Bc2 17.Qe1 (worse is 17.Qc2 Nd4 18.Qb1 Ne2 19.Kh1 Nc3 20.Bc3 Rc3-/+) 17...e5 18.Nf3 (better is 18.Rc1!? ed4 19.Rc2+=) 18...ed4+= 19.Nd4 Nd4 20.Bd4 Bd4 21.ed4 Be4 22.Qd1 Qd5 23.f3 Bf5 24.Rf2 Rc3 25.Bf1 Rfc8 26.Rd2 Re3 27.Raa2 Rec3 28.Qe2?? Bd3!–+ 29.Rd3 Rd3 30.Qd3 Qa2 31.Qb5 Qa3 32.Qe5 Rd8 0–1. Cramling,P (2475) – Harika,D (2505), Batumi GEO, World Rapid Ch (w), 2012.

7.c4 Bb7

8.Rc1 dc4 9.Bc4 Nbd7 10.0-0 Ne4 11.Ne4 Be4 12.Ng5 Nf6 (better is 12...Bb7!?+/-) 13.Ne4+– Ne4 14.Ba6 Nf6 15.a3 Rb8 16.Qa4 Nd5 17.Bb5 a5 18.Bc6 ab4 19.ab4 e6 20.b5 f5 21.Qb3 Rf7 22.Rfd1 h5 23.Rd2 h4 24.h3 g5 25.Re1 Bf8 26.e4 fe4 27.Re4 Qd6 28.Re6?? (better is 28.Bc1 Nf4 29.Ra2+–) 28...Qe6–+ 29.Bd5 (29.Rd1 Rd8–+) 29…Qe1 (29...Qe1 30.Kh2 Bd6 (30...Qd2 31.Bf7 Kg7 32.Bc4-/+) 31.g3 hg3 32.Kg2 Qd2 33.Bf7 Kg7–+) 0–1. Joksch,Alexander (2180) – Lomineishvili,Maia (2375), Bad Woerishofen op, 1999. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d5 6.e3 b6)

8.Bd3 dc4 9.Nc4 Na6 10.Qb3=.

8.Bd3 e6 9.0-0+= Nbd7 10.b5 Ne4 (10...a6 11.a4+=) 11.Qc2 Nd2 12.Nd2 dc4 13.Nc4 Re8 (13...a6 14.a4+=) 14.Be4 (14.Rfc1 Qh4+/-) 14...Be4 15.Qe4 Qg5 16.Qc6 Red8 17.Nd2 (17.Rfc1 a6 18.a4 Qd5+=) 17...Rac8 18.Nf3 Qh5 19.a4 Nc5 20.dc5 Bb2 21.Ra2 Bf6 22.Rc1 (22.Rc2 g5+=) 22...bc5 23.h3 (23.Qc5?? Qc5 24.Re1 Qc4–+) 23...Be7 24.Qb7 (24.Qa6 Ra8=) 24...Qd5 25.Qd5 ed5 (better is 25...Rd5!? 26.e4 Rd6=) 26.Ne5+= d4 27.Nc6 Rd7 28.Rd2 (28.Na7 Re8 29.Nc6 Bg5+/-) 28...Bf8 29.Rc4 (worse is 29.ed4 Bh6 30.Rcd1 Bd2 31.Rd2 cd4 32.Rd4 Rd4 33.Nd4 a6-/+) 29...d3 (better is 29...a6!?+=) 30.Na7+– Re8 31.Nc6 f5 (31...Bh6 32.a5+–) 32.Rc3 (32.a5 Rd5+–) 32...Bg7 (32...Re4 33.a5 (33.Rdd3?! Rd3 34.Rd3 Ra4=; 33.Rcd3?! Rd3 34.Rd3 Ra4=) 33...c4 34.a6+–) 33.Rcd3 Rd3 34.Rd3 c4 35.Rd7 (35.Rd5 f4 36.ef4 Re1 37.Kh2 c3+–) 35...c3 (better is 35...Ra8 36.Rc7 Ra4+–) 36.Rc7 Ra8 (36...Bf8 37.Nd4 Ra8 38.Rc3 Ra4 39.Rc8+–) 37.b6 c2 (37...Ra4 38.b7 Ra1 39.Kh2+–) 38.Ne7 (better is 38.Na7+–) 38...Kf8 39.b7 Rb8 40.Rc2 Rb7 41.Nd5 (41.Nc6 Rb6+–) 41...Be5 42.Rc8 Kf7 43.Ra8?? (better is 43.f4 Bd6 44.Rc6+–) 43...Rb1 0–1. Reitz,Philipp (1915) – Peters,Tom (2015), German Youth Championship U18, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

8.Be2 a5 9.b5+=.

8.Be2 c5 9.dc5 bc5 10.b5 a6 11.a4 ab5 12.ab5 Nbd7 13.Ra8 ½–½. Georgescu,Tiberiu_Marian (2460) – Istratescu,Andrei (2590), 3rd Iasi Open, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 b6 6.Bb2 0-0)

8.Be2 c6 9.0-0 Nbd7 10.a4 ½–½. Cyborowski,Lukasz (2525) – Kolosowski,Mateusz (2440), Wroclaw Poland, Polonia Cup GM Poland, 2012. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

8.Be2 Nc6 9.a3 dc4 10.Bc4 e5 (10...a6 11.0-0+=) 11.0-0 (11.b5!? Na5 12.de5 Nc4 13.Nc4+=) 11...ed4= 12.Nd4 Ne5 13.Ne6 Qd2?? (better is 13...Nc4 14.Nd8 Nb2=) 14.Qd2+– Nc4 15.Qc2 Nb2 16.Ng7 Ba6 17.Qb2 Bf1 18.Qf6 Bc4 19.Rd1 a5 20.Qc3 Rfd8 21.Rd8 Rd8 22.h3 Rd1 23.Kh2 ab4 24.Qc4 ba3 25.Qb3 Rd8 26.Qa3 c5 27.Qc3 Rc8 28.Qe5 c4 29.Ne6! (29.Ne6 fe6 30.Qe6 Kg7 31.Qc8+–) 1–0. Beckmann,Manfred (1870) – Bakalarczyk,Wlodzimierz (1995), Rowy op, 2005.

8.Be2 Nbd7 9.0-0 c5 10.dc5 bc5 11.b5 e6 12.Rc1 (12.Qc2 Qc7=) 12...a6 13.a4 ab5 14.ab5 Ra2 (14...Qc7 15.Qc2=) 15.Bc3 (15.Qb3 Ra8+=) 15...Qb6 (15...Ne4 16.Bg7 Kg7 17.cd5 Nd2 18.Nd2 ed5=) 16.Nb3 (16.Qb3!? Rfa8 17.Ra1 Ra1 18.Ra1 Ra1 19.Ba1=) 16...Ne4 (16...Rfa8 17.Rc2-/+) 17.Bg7+= Kg7 18.Bd3 (18.Rc2 Rfa8 19.Nfd2+=) 18...Nd6 (18...dc4 19.Bc4 Rd8 20.Ra1 Ra1 21.Qa1 Kg8 22.Na5=) 19.Bb1 (19.cd5 Bd5 20.e4 Bb3 21.Qb3 Ra5=) 19...Raa8 (19...Rb2 20.cd5 A) 20...ed5? 21.Nc5 Nf6 22.Na4 Qb5 23.Bd3+–; B) worse is 20...Bd5 21.Nc5 Nf6 22.Na4 Qb5 23.Nb2 Qb2 24.Qd4 Qd4 25.Nd4+– (25.ed4?! Nh5+=); C) 20...e5-/+) 20.cd5= Bd5 (20...e5 21.Ne5 Ne5 22.Nc5 Nb5 23.f4-/+) 21.Nc5 Nc5 (21...Qb5? 22.Qd4 Nf6 23.e4 Nde4 24.Bd3+–) 22.Qd4 Kg8 23.Qc5 Qc5 24.Rc5 Rfc8 25.Rc8 Rc8 26.Bd3 Rc3 27.Be2 Bf3 (27...Bc4 28.Bc4 Rc4 29.Ne5=) 28.Bf3 Nb5 29.Rb1 (29.Rd1 Rc7=) 29...Kg7 (29...Nd6 30.g4=) 30.g3 (30.g4 Nd4 31.Bb7 Nb3=) 30...Nd4 (30...Nd6 31.Rd1 Nc4 32.Be2=) 31.Bd1 Nf5 (31...Nc6 32.Kg2=) 32.Kg2 (32.Rb2 e5=) 32...g5 (32...Rd3 33.g4 Nd6 34.Bf3=) 33.Rb7 Rc1 (33...Kf6 34.Rd7=) 34.Bh5 (34.Rd7 Kf6=) 34...Nd6 35.Rd7 Rc6 36.Kf1 (36.f4 Rc2 37.Kg1 Rc1 38.Kf2 Rc2 39.Kf3 Rh2=) 36...Kf6 37.f4 gf4 (37...h6 38.Bf3 Rb6 39.Kf2=) 38.ef4 Kg7 (38...h6 39.Kg2=) 39.Kg2 Rc2 (39...Ra6 40.Kf2=) 40.Kh3 (40.Kf3 Rc3 41.Ke2 Rc2 42.Kd3 Rc6=) 40...Rc6 41.Kg4 (41.Bf3 Rb6=) 41...Kf6 42.Kh4 (42.Kf3 h6=) 42...Nf5 (42...e5 43.fe5 Ke5 44.Bf7 Nf7 45.Rf7 Rh6 46.Kg5 Rh2 47.Re7 Kd5 48.Ra7=) 43.Kh3 Ne7 44.Be2 (44.Kg4 Rc4=) 44...Rc2 45.Bd1 (45.Bf3 Rf2 46.Be4 h6=) 45...Ra2 46.Rb7 (46.Bf3 h6=) 46...Ng6 (46...Rd2 47.Bg4=) 47.f5 (47.Bf3 h6=) 47...ef5 48.Bb3 Rf2 49.Bf7 (49.Rf7 Kg5 50.Rg7 Kh6=) 49...Ke5 ½–½. Hosseinipour,Mehdi (2255) – Daghli,Arash (2065), 1st Paytakht Cup, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 b6 6.Bb2 0-0 7.c4 Bb7)

8.Be2 Nbd7 9.b5 c5 10.bc6 Bc6 11.0-0 Rc8 12.Rc1+= Re8 (12...dc4 13.Bc4 b5 14.Bd3+=) 13.Qb3 e6 (13...a5 14.a4+=) 14.cd5 Bd5 15.Qa4 Rc1 (15...Rc7 16.Bb5 Rb7 17.Ne5+/-) 16.Rc1+/- Qb8 (16...a5 17.Bb5 Bb7 18.e4+–) 17.e4 b5 18.Bb5 (18.Qb5 a6 19.Qb8 Rb8 (19...Nb8?? 20.ed5 ed5 21.Bd3+–) 20.ed5 Rb2 21.de6 fe6 22.Ba6 Bh6+/-) 18...Be4? (better is 18...Ne4!? 19.Bd7 Nd2 20.Be8 Qb2 21.Bf7 Kf7 22.Qd7 Kg8 23.Rc8 Bf8 24.Rf8 Kf8 25.Qd8 Kg7 26.Qe7 Kg8 27.Qe8 Kg7 28.Qe7 Kg8 29.Qe8 Kg7 30.Qe7=) 19.Ne4+– (19.Bd7?! Qb2 20.Rf1 A) 20...Nd7? 21.Qd7 (21.Ne4?! Rd8+=) 21...Rf8 22.Ne4+–; B) 20...Rf8 21.Ne4 Ne4 22.Qa7 Nc3+=) 19...Ne4 20.Re1 (20.Ba3 Nb6 21.Qc2 Nf6 22.Be8 Ne8+–) 20...Nb6 (20...Ndf6 21.Be8 Qb2 22.Rf1+/-) 21.Qb3 (21.Qa6 Nd6 22.Be8 Ne8+–) 21...Nd6 (21...Nf6 22.Be8 Qe8 23.Ba3+–) 22.Be8 Qe8 23.Ba3 Qd8 24.Bc5 Nf5 25.Qa3 (25.Rb1 h6+–) 25...Qd7 26.Rb1 (26.Ne5 Qb7+–) 26...h6 27.Bb6 (27.Qa5 Bh8+–) 27...ab6 28.Rb6 Nd4 29.Nd4 Qd4 30.Rb1 h5 (30...Qd2 31.Qa8 Kh7 32.a4+–) 31.Qb4 Qd3 32.Qb3 (32.a4 Bc3 33.Qb3 Qe4+–) 32...Qd2 33.Rd1 Qe2 34.h3 (34.Qb1 Bf6+–) 34...Be5 (34...Kh7 35.Qb1+–) 35.a4 h4 (35...Bc7 36.Rc1 Bf4 37.Qb5+–) 36.Qd3 Qh5 37.Qf3 (37.a5 Bc7 38.a6 Qa5+–) 37...Qg5 (37...Qf3 38.gf3 Bc3 39.Rc1+–) 38.Qg4 (38.Qg4 Qe7 39.Qe4+–) 1–0. Vijayalakshmi,Subbaraman (2365) – Kiran,Manisha Mohanty (2185), 11. TCh–w, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6 7.c4 Bb7)

8.Be2 Ne4 9.0-0+= c5 10.cd5 (10.bc5 bc5 11.Qb3 Bc6+=) 10...Nd2= 11.Qd2 Qd5 (11...cb4 12.Qb4 Bd5 13.Rfc1+=) 12.bc5+= bc5 13.Rac1 (13.e4 Qe4 14.dc5 Bb2 15.Qb2 Bd5+=) 13...cd4 (13...Nd7 14.Rc2+=) 14.Bd4 Bd4 15.Qd4 (15.ed4 Qd6+=) 15...Qd4 (15...Qa2 16.Bc4 Qa5 17.Ne5+=) 16.Nd4+= Ba6 (16...e5 17.Rc7 Bd5 18.Bf3+=) 17.Ba6 Na6 18.Nc6 e6 19.Rfd1 Kg7 20.Rd4 (20.a3 Rfc8+=) 20...Nc7 (20...Rfc8 21.Rdc4+=) 21.a4 (21.Kf1 a6+/-) 21...Nd5 22.e4 Nf4 23.Kf1 g5 24.g3 Ng6 25.Rc5 (25.Rdc4 Rfc8+=) 25...h6 (25...Rfc8 26.Rd6 g4 27.Rg5+=) 26.Rdc4 (26.Ra5 g4+/-) 26...Kf6 (26...Rfc8 27.Ke2+=) 27.Ke2+/- Rfc8 28.Ke3 (28.e5 Kg7+/-) 28...Rc6+= 29.Rc6 Ne5 30.f4 Nc4 31.Rc4 Rb8 ½–½. Luebeck,Stephan (2030) – Kopylov,Daniel (2125), 4th Hofheim Spring Open, 2016. (=1.d4 d5 2.Nf3 Nf6 3.e3 g6 4.Nbd2 Bg7 5.b4 0-0 6.Bb2 b6 7.c4 Bb7)

7.c4 dc4

8.Nc4 Bb7 9.Be2 Nd5 (9...Qd5 10.Qb3=) 10.Qb3 Nd7 (10...a6 11.g3=) 11.0-0+= e6 12.Rac1 Qe7 13.b5 (13.Ba3 Rfb8+=) 13...Rfc8 14.Nce5 Ne5 15.de5 (15.Ne5 a6=) 15...Bf8 (15...a6 16.a4=) 16.Nd4 Qb4 (16...Qg5 17.g3+/-) 17.Qb4+= Bb4 18.Nc6 Bc6 19.bc6 Bc5 20.Bd4 (20.Rfd1 Rd8+=) 20...Ba3 (20...Bd4 21.ed4 Rf8 22.g3=) 21.Rc2 a5 22.Bb2 (better is 22.Rd1!?+=) 22...Nb4+= 23.Rd2 Bb2 24.Rb2 Nc6 (24...Rd8 25.f4+=) 25.Bf3 Ne5 26.Ba8 Ra8 27.Rd1 a4 (27...Kg7 28.Rb3=) 28.Rc2 c5 29.Rd6 Rb8 30.Kf1 Kf8 31.Ke2 Ke7 32.Rdd2 Nd7 33.f4 f5 34.Kd1 b5 35.Rd7 (35.Ke2!?+=) 35...Kd7-/+ 36.Rc5 Kd6 37.Re5 b4 (better is 37...Rb6-/+) 38.Kc2? (better is 38.Ra5 b3 39.Ra6 Kd5 40.Ra5 Kc6 41.ab3 ab3 42.Kc1-/+) 38...Rc8–+ 39.Kb2 (39.Kd3 Rc5 40.Kd4 Re5 41.fe5 Kd7 42.Kc4–+) 39...Rc5 40.Rc5 Kc5 41.Kc2 Kc4 0–1. Andersen,Per O (2040) – Dubessay,Bastien (2360), Reykjavik ISL, Open, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

8.Nc4 Bb7 9.Be2 Nbd7 10.0-0+= c5 11.dc5 bc5 12.b5 Qc7 13.Bc3 (better 13.Qb3!?+=) 13...Ng4=+ 14.Bg7 Bf3 (worse 14...Kg7 15.g3=) 15.g3 Nf2 16.Rf2 Be2 17.Qe2 Kg7 18.a4 Kg8 (18...f6 19.Rc1-/+) 19.Raf1 Ne5 20.a5 Nc4 21.Qc4 e6 22.Qc3 Rab8 23.Rb2 c4 24.Rfb1 Rfd8 25.b6 ab6 26.ab6 Qc6 (26...Qc5 27.Rb5 Rd1 28.Kf2-/+) 27.Rb4=+ Attacking the isolated pawn on c4 27...Qe4 28.Qc1 (28.b7 Rd7=+) 28...Rdc8-/+ 29.b7 Rc7 30.Qa3 Kg7 (30...Rcb7? 31.Rb7 Rb7 32.Qa8 Kg7 33.Qb7 (33.Rb7?! Qe3 34.Kg2 Qe2 35.Kg1 Qe3 36.Kf1 c3=) 33...Qe3 34.Kh1+–) 31.Qa7? (better 31.Qc3 e5 32.Rb5-/+) 31...Rbb7!!–+ 32.Qa1 (32.Qb7 Qe3 Double attack (32...Qe3 Decoy); 32.Rb7 Qb1 Double attack) 32…f6 (32...f6 33.Qc3 Rb4 34.Rb4 e5–+) 0–1. Suarez Gomez,Julio (2485) – Aguera Naredo,J (2375), 10th Carlos I Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 b6)

8.Bc4 Bb7

9.0-0 Nbd7 10.b5 Ne4 11.Ne4 Be4 12.a4 Bb7 13.Qe2 Nf6 14.Rfd1 e6 15.Ne5 Ne4 16.f3 Nd6 17.Bb3 a6 18.e4 Qe8 19.ba6 Ba6 20.Qf2 Bb7 21.Rdc1 Rc8 (21...Qe7!?+=) 22.a5+– ba5 23.Ra5 Qe7 24.Rac5 Bh6 25.R1c2 Rfd8 26.d5 (26.Qe1 Bg7+–) 26...ed5 (26...Bg7!? 27.de6 fe6+–) 27.Nc6 Bc6 28.Qd4 (28.Rc6 Nb5 (28...de4?? 29.Qd4 Be3 30.Qe3+–) 29.Qf1 de4=+) 28...f6 29.Rc6 Bg7 30.Bd5 Kh8 31.Qc5 Rd7 32.Bd4 Qe8 (32...Rb8 33.Rc1+– (33.Rc7?! Rc7 34.Qc7 Qc7 35.Rc7 Nb5=)) 33.Ra6 Qe7 34.Bc6 Rdd8 35.Qc3 (35.Rc1 Rb8+–) 35...Rb8 36.Rc1 h5 (36...f5 37.Bg7 Qg7 38.e5+–) 37.Ra5 Kh7 38.Ba4 (38.Ba7 Rbc8+–) 38...Rb7 (38...Ra8 39.Ra8 Ra8 40.Bc6+–) 39.Rc5+– Rc8 (39...h4 40.Bf2+– (40.Rc7?! Rc7 41.Qc7 Qc7 42.Rc7 Ne4+=)) 40.h3 Nf7 41.Bc6 Rb6 42.Bd5 Ne5? (42...Ng5 43.Rc7 Rc7 44.Qc7 Qc7 45.Rc7+–) 43.Rc7 (better 43.f4 Nd7 44.Rc7 Rc7 45.Qc7+–) 43...Rc7 44.Qc7 Qc7 45.Rc7 Rb1 46.Kh2 (46.Kf2 g5+–) 46...g5 47.Be6 h4 48.Bf5 Kg8 49.Be6 Kh7 50.Bd5 (50.Bc3 Rb6 51.Ba2 Kg6+–) 50...Kh6+– 51.Ra7 Rd1 52.Bc5 (52.Bc3 Bf8 53.Ra6 Bc5+–) 52...Rc1 (52...Rd2 53.Ra3+=) 53.Bd6 (53.Be3 Re1 54.Bf2 Rf1+–) 53...Nd3 (53...Rc2 54.Ra3+–) 54.Ra2 Nf4 55.Bb7 (55.Bb3!?+–) 55...Rd1+= 56.Bc5 Kh7 (56...Ne6 57.Bf2+=) 57.Bc8+– Kh6 (57...Nh5 58.Bf5 Kh6 59.g4 hg3 60.Kg2+–) 58.Bf5 (58.Bg4 Nd3 59.Be7 Rf1+–) 58...Nd3 (58...Nh5 59.g4 hg3 60.Kg2+–) 59.Be7 Kh5? (59...Rc1 60.Rd2 Ne5 61.Bb4+–) 60.Ba3 (better 60.f4 Re1 61.e5 Ne5 62.Bb4+–) 60...Kh6+– 61.Rc2 Nf4 62.Bb4 Nh5 63.Rd2 Rb1 64.Bd6 Nf4?? (64...Re1 65.Be6+–) 65.Bg4 (better 65.e5 Rb5 66.e6 Ne6 67.Be6+–) 65...Re1 (65...Ng6+–) 66.Bf4 (better 66.Bd7!?+–) 66...gf4+= 67.Rd5 Bf8 68.Rh5 Kg6 (better 68...Kg7!? 69.Be6 Be7=) 69.Rh4+– Bc5 70.Bf5 Kg5 71.Rg4 Kh5 72.h4 (better 72.Rf4!? Bd6 73.g3 Re2 74.Kg1 Bf4 75.Bg4 (75.gf4?! Kh4=) 75...Kg6 76.gf4+–) 72...Bg1= 73.Kh1 Bf2 74.Kh2 Bg1 75.Kh3 Be3 76.g3 Rh1 77.Kg2 Rg1 78.Kh2 Rf1? (78...fg3 79.Rg3 Bf4 80.Kg1 Bg3 81.Kg2 Kh4 82.Bd7=) 79.gf4 (better 79.Rf4!? Bf4 80.Bg4 (80.gf4? Rf3 81.Kg2 Rf4–+) 80...Kg6 81.gf4 Rf2 82.Kg3+–) 79...Rf3= 80.Rg8 Bf4 81.Kg2 Re3 82.Kf2 Ra3 83.Rh8 Bh6 84.Ke2 Re3 85.Kd1 Rd3 86.Kc2 Rd2 87.Kc3 Rh2 88.Kd4 Rh4 89.Kd5 Kg5 90.Ke6 Bg7?? (better 90...Kf4=) 91.Rg8+– Kh6 (91...Kf4 92.Rg7 Kf3+–) 92.Kf7 (92.Kf7 Kg5 93.Rg7 Kf4 94.Rh7 Rh2 95.Rh2 Ke5 96.Rh7 Kf4 97.Kf6 Kf3 98.e5 Kf4 99.e6 Kf3 100.e7 Kg2 101.e8Q Kf2 102.Rh2 Kg1 103.Qe5 Kf1 104.Qa1) 1–0. Ning,Kaiyu (2340) – Yuan,Ye (2155), ch–CHN Rapid Women, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.0-0 Nbd7 10.Qc2 Rc8 11.Qa4 Ra8 12.Rfc1 Ne4? (12...a6 13.Qc2+=) 13.Ba6 (better is 13.Ne4!? Be4 14.Ng5+–) 13...Ba6+= 14.Qa6 Nd2 15.Nd2 Nf6 16.e4 (16.Qc4 Rc8+=) 16...Nh5 (16...Bh6!? 17.Qd3 Bd2 18.Qd2 Ne4+=) 17.Nb3 Qd7 18.f3 Nf4 19.g3 Ne6 d4 becomes the focus of attention 20.Qc4 Rfc8 (20...Ng5 21.Rf1=) 21.Qc6 Qc6 22.Rc6 Nd8 (22...Rd8 23.e5=) 23.Rc2+= c6 24.Rac1 Rc7 (24...Bh6!? 25.f4 g5+=) 25.d5+/- Bb2 26.Rb2 Rac8 27.Rbc2 c5 (better is 27...e5!?+/-) 28.bc5+– bc5 29.Rc5 (29.Nc5? Nb7–+) 29...Rc5 30.Rc5 Rc5 31.Nc5 f6 32.Kf2 Nf7 33.f4 Kf8 34.Ke3 Ke8 35.Ne6 Nd6 36.Kd3 Kf7 37.g4 f5 (37...h5 38.e5 Nc8 39.g5+–) 38.Ng5 Kg7 39.e5 Ne8 (39...Nc8 40.gf5 gf5+–) 40.gf5 gf5 (40...a6 41.f6! Nf6 42.ef6 Kf6 43.Nh7 Kf5 44.Nf8+–) 41.Kc4 (41.Ne6!? Kg6+–) 41...h6 (41...Kg6 42.Ne6+–) 42.Nf3 (better is 42.Ne6!? Kg6+–) 42...Kf7 43.Kc5 Ng7 (43...Nc7 44.Nd4 Na6 45.Kb5 Nc7 46.Kc6+–) 44.Nd4 Ke8 (44...a5 45.Kb5 a4+–) 45.Kc6 Kd8 (45...Nh5 46.Ne6+–) 46.Kb7 (better is 46.Ne6 Ne6 47.de6+–) 46...a5 (46...Kd7+–) 47.a4 (better is 47.Ne6 Ne6 48.de6 a4+–) 47...Ne8 1–0. Perez De La Torre,J (1625) – Bernardez Gonzalez,R, Santa Cruz de Tenerife ESP, Otono Open, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

9.0-0 Nbd7 10.Qe2 c5 11.dc5 bc5 12.b5 Qc7 13.a4 Nd5 (13...Nb6 14.Bb3+=) 14.Bg7+/- Kg7 15.Rfc1 Nb4 16.a5 Ne5 17.Ne5 Qe5 18.a6 Bd5 19.e4 Bc4 20.Qc4 Rac8 21.Nb3 Attacks the isolani on c5 21...Rc7 (21...Rfd8 22.Rd1+=) 22.g3 (22.Rc3 e6+/-) 22...Rfc8 23.f4 Qd6 24.Rd1 Qb6 25.Na5 Rb8 (25...h5 26.Nb7+/-) 26.Nb7+/- Rbb7 27.ab7 Rb7 28.e5 Qb5 (28...h6 29.h3+/-) 29.Qb5 Rb5 30.Ra7 Nc6 31.Rc7 Rb6 (31...Nd4!?+/-) 32.Rd5 Nd4 33.Rcc5 (33.Rdc5 h5+-) 33...Ne6 (33...Rb1 34.Kf2 Rb2 35.Ke1 Nf3 36.Kd1 Nh2 37.Rc7 Rb1 38.Kc2+-) 34.Rc2 (34.Rb5 Rb5 35.Rb5 g5 36.fg5 Ng5+-) 34...Rb1 (34...f5 35.Ra2 Rb7 36.Rda5+-) 35.Kf2 Rb3 (35...f5 36.ef6! Kf6 37.h4+-) 36.Rd7 Kf8 37.Rc8 Kg7 38.Re7 Rb2 39.Ke3 Rh2 40.Ra8 Rg2 (40...Rb2 41.Raa7 Nd8 42.e6 Rb3 43.Kf2 Rb2 44.Kf3 Rb3 45.Kg2+-) 41.Kf3 (better 41.Raa7!? Rg3 42.Ke4 Nd8+-) 41...Rc2 (41...Rb2 42.Raa7 Rb3 43.Kg2+-) 42.Raa7 Rc3 43.Ke4 Nc5 (43...Nd8+-) 44.Kd4 Rc1 45.Rf7 Kg8 46.Rg7 Kf8 47.Rgf7 (47.Kd5!? h5+-) 47...Kg8 48.Rg7 Kf8 49.Rh7 Nb3 (49...Kg8 50.Rhe7 Kf8+-) 50.Kd5 Rc5 51.Kd6 Rc8 (51...Kg8 52.Rhg7 Kh8 53.Rge7 Rc8 54.e6 Rd8 55.Rad7 Rc8 56.Rh7 Kg8 57.Rdg7 Kf8 58.e7 Ke8 59.Rh8) 52.Rh8 1-0. Rakotomaharo,Fy Antenaina (2420) - Ozdemir,Serhan Berat (2190), Titled Tuesday 3rd Nov, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

9.0-0 Ne8 10.Qc2 Nd7 11.b5 Rc8 12.Rfc1 (12.d5 Bb2 13.Qb2 Nd6+=) 12...Nd6+= 13.Bd3 c6 14.bc6 Rc6 15.Qb3 Qa8 16.Rc6 Bc6 17.a4 Rb8 18.Ba3 b5 (18...Bd5 19.Qc2+=) 19.ab5 (19.Bd6!? ba4 20.Qa3 ed6 21.Qd6+/-) 19...Nb5+= 20.Qa2 (worse is 20.Be7 Nd4 21.Qb8 Qb8 22.ed4 h6-/+) 20...Bd5 (worse is 20...Na3 21.Qa3 e5 22.Qa7 ed4 23.ed4+/-) 21.Bc4 Bc4 22.Nc4 Na3 (22...Bf6 23.Nce5 Be5 24.de5+=) 23.Qa3+= e5 (23...e6 24.Nfd2 (24.Qa7?? Qa7 25.Rf1 Qa2–+) 24...Rb7 25.Qa4+=) 24.h3 (24.de5 Rc8 25.Rd1 Rc4 26.Rd7 Qc8+/-) 24...Rb7 (24...ed4 25.ed4 Rb7 26.Re1+=) 25.Qa6 (25.de5 Rc7 26.Qd6 Qc8+/-) 25...Rc7 (25...ed4!? 26.ed4 Qb8+=) 26.Qd6 (26.Nfe5 Ne5 27.Ne5 Be5 28.de5 Qd8+/-) 26...Qc8 (26...Qb8 27.de5 Rc4 28.Qd7 Be5 29.Ne5 (29.Qa7?? Qa7 30.Re1 Bf6–+) 29...Qe5 30.Qa7+/-) 27.Nce5 Nb6 28.Qa3 Bf8 29.Qa6 Rc1 30.Kh2 Ra1 31.Qa1 Qc7 32.Kg1 Nd5 33.Qa4 a5 34.Ng5 Nc3 35.Qe8 Qe7 36.Qc8 Qg5 37.Qc3 a4? 38.Nd7?? Qb5 39.Qc8 Qb4 40.Qa8 a3 41.h4 Kg7 42.Nf8 Qf8 43.Qa5 Qd6 44.g3 f6 45.e4 Kh6 46.e5 fe5 47.de5 Qd1 48.Kh2 Qf3 49.Qd2 Kg7+= 50.Qd4 Qb7? 51.Qd8?? Qf7 52.f4 h6 53.Qa5 Qe7 54.Kh3 g5 55.hg5+/- hg5 56.Kg4?? gf4= 57.gf4 Kh6 58.Kf3 Qb7 59.Kg3 Qb3 60.Kh4 Qe3 61.Qb4 Qf2= 62.Kh3 Qf1 63.Kh2 Qe2 64.Kg3 Qd3 65.Kh4 Qd8 66.Kh3 Qa8 67.Qe7?? Qf3-/+ 68.Kh4?? Qf4–+ 69.Kh3 Qe3 (69...Qe3 70.Kg4 Qe4 71.Kg3 Qg6 72.Kf2 a2 73.Qh4 Kg7-/+) 0–1. Novkovic,Mi (2380) – Fedoseev,Vl3 (2545), 13th EICC Plovdiv BUL, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

9.b5 a6= 10.a4 ab5 11.ab5 Ra1 12.Qa1 c6 13.0-0 cb5 14.Bb5 Nc6 (14...Ne4 15.Ne4 Be4 16.Be2+=) 15.Rc1 Na5 16.Ba3 Nd5 (16...Bf3!? 17.gf3 Qd5+=) 17.Qb2+/- h6 18.h3 Qa8 (better 18...Nc7!?+/-) 19.e4+- Nf4 (19...Nf6 20.Be7 Rc8 21.Rc8 Qc8 22.e5+-) 20.Be7 Re8? (better 20...Rc8 21.Rc8 Qc8+-) 21.Bd6 Ne6 (21...Nh3 22.gh3 Rc8+-) 22.Be8 Qe8 23.Qb6 (23.Qb6 Be4 24.Ne4 Nd4 25.Nd4 Qe4 26.Rc8 Kh7 27.Qd8+-) 1-0. Diaz Camallonga,C (2465) - Rottenwohrer Suarez,Juan (2195), Titled Tuesday, 2020. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3)

7.c4 c5

8.b5 cd4 9.Nd4 Bb7 10.N4f3 Nbd7 11.Be2 Nc5 12.0-0 Rc8 13.Rc1 Nfe4 14.Bg7 Kg7 15.Ne4 de4 16.Nd4 e5 17.Nb3 Nd3 18.Bd3 ed3 19.c5 Qd5 (19...bc5!? 20.Nc5 d2=) 20.c6= Ba8 21.a4 a6 22.Nd2 f5 23.Qb3 Rfd8 (better 23...Qb3!? 24.Nb3 Kf6+=) 24.Qb2+/- Kh6 25.f3 f4 (25...Re8!?+/-) 26.Rfe1 fe3 27.Re3 Qd4 28.Qd4 Rd4 29.Re4 Rcd8? (better 29...Rd5 30.Rb4 ab5 31.ab5 Kg5+-) 30.Rd4 (30.ba6?! Rc8+-) 30...ed4 31.Re1 (31.c7 Rc8 32.a5 ba5+-) 31...Rc8 (31...Rd5 32.Re8 ab5 33.Ra8+-) 32.Re4 (better 32.Re6 Kg5+-) 32...Bc6? (better 32...Rd8+-) 33.bc6 Rc6 34.Rd4 Rc3 35.Kf2 Ra3 36.Rb4 a5 37.Rb6 Ra4 38.Ke3 Ra3 39.Rd6 a4 40.Rd3 Ra2 (40...Ra1 41.Nc4+-) 41.Rd7 a3 (41...g5 42.g4+-) 42.Ra7 (42.h4 Rb2+-) 42...Ra1 (42...g5 43.g4 Kg6 44.Ne4 Rh2 45.Ra3+-) 43.Ne4 Ra2 (43...g5 44.Ra6 Kg7 45.Ng5+-) 44.g4 (better 44.h4 g5 45.hg5 Kg6+-) 44...g5 45.Ra6 Kg7 46.Ng5 Ra1 (46...Rh2 47.Ra3 h5 48.Ne6 Kf7 49.Nf4 hg4 50.Ra7 Kf6 51.Ra6 Kg7 52.fg4+-) 47.Kf4 Ra2 (47...h6 48.Ne4+-) 48.h4 Ra1 (48...h6 49.Ra7 Kf8 50.Ne6 Kg8 51.Kf5+-) 49.h5 h6 50.Ne4 (better 50.Rg6!? Kf8 51.Rh6 a2+-) 50...Kf7 51.Ng3 1-0. Sargissian,G (2685) - Mikhalevski,V (2575), World Blitz, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.b5 cd4 9.Bd4 Nbd7 (9...a6 10.Qb3=) 10.cd5+= Nd5 (10...Nc5 11.Rc1+=) 11.Bg7 (11.Bc4 Nc5+=) 11...Kg7 12.Bc4 Bb7 (12...N7f6 13.0-0+=) 13.0-0 Nc5 14.Nb3 (14.Qc2 a6+=) 14...Rc8 (14...Nf6 15.Nc5 bc5 16.Qe2+=) 15.Rc1 Nf6 16.Qe2 Bf3 17.Qf3 e5 ½–½. Voloshin,Leonid (2405) – Postupa,P2 (2200), CZE Ch, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 b6)

8.b5 Nbd7 9.Be2 Bb7 10.0-0 Qc7 11.Qb3 dc4 12.Bc4 cd4 (12...e6 13.a4=) 13.ed4 e6 14.Rac1 Qf4 15.Rfe1 Rac8 16.Rcd1 (16.Qa3 Bh6=) 16...Rfe8 17.h3 Qc7 ½–½. Ritz,Thomas (2135) – Kyas,Juergen (2260), Seefeld op, 2000. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.Nbd2 b6 6.e3 0-0)

8.b5 Nbd7 9.Be2 Bb7 10.0-0 Rc8 11.Rc1 Rc7 12.dc5 Nc5 13.Nb3 dc4 14.Qd8 (14.Bc4 Qd1 15.Rfd1 Bf3 16.gf3 e6=) 14...Rd8=+ 15.Bc4 Rdc8 16.Be5 Nb3 17.ab3 Rc5 18.Bd4 R5c7 19.Be5 Rc5 20.Bd4 R5c7 21.Be5 Rc5 22.Bd4 ½-½. Zeman,Matyas (2275) - Vyprachticky,D (2310), 27th Klatovy Open, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.dc5 bc5

9.b5 Bb7 10.Be2 Nbd7 11.0-0 Nb6 12.Qb3 a5 (12...Qd7 13.Rad1=) 13.Rad1 a4 (13...Qc8 14.Qc2+=) 14.Qa3 Nfd7 (14...Qc7 15.Be5 Qc8 16.cd5 Bd5 17.Rc1+=) 15.Bg7+/- Kg7 16.Qb2 (16.cd5 Bd5 17.e4 Bb7+/-) 16...Kg8 17.a3 Qc7 18.Rc1 Rac8 19.Rfd1 Rfd8 20.h3 Qb8 21.Ne1 Ne5 22.cd5 Bd5 23.e4 Ba8 24.f4 Ned7= 25.e5 Nf8 26.Bg4 Rc7 27.Nc4 Rd1 28.Bd1 Rd7 29.Bf3 Bf3= 30.Nf3 Rd3 31.Na5 Ne6= 32.Nc6 Qf8 33.Rc3 Rd1 34.Kh2 Nd5 35.Rc4 Nb6 36.Re4 Rd3 37.Qc1 Rd7 38.g4 Qh6 39.Ng5 Qh4 40.Qe3 Ng5 41.fg5 Nd5 42.Qe1 Qg5 43.e6 fe6 44.Ra4 Ne3 45.Ra8 Kg7-/+ 46.Qc3?? Kh6 47.Kg3 Nf5 48.Kf3 Rd2 49.Ne5 Nh4 50.Ke4 Re2 51.Kd3 Re3 52.Kc2 Rc3 53.Kc3 Qe5 (53...Qe5 54.Kc4 Qd5 55.Kc3 Qa8 56.g5 Kg5–+) 0–1. Djurkovic,M (2205) – Jelen,Ig (2330), 15th ch–SLO, Ptuj SLO, 2005.

9.b5 Bb7 10.Be2 Nbd7 11.0-0 Qc7 12.cd5 Bd5 13.Rc1 (13.Qc2 Rfd8=) 13...Ba2 14.Nc4 (14.Qc2 Bd5=+) 14...Rfd8 (14...a5 15.Nfe5=+) 15.Qc2= Bc4 16.Bc4 e6 17.h3 Rac8 18.Ra1 Nb6 19.Be2 c4 20.Be5 (20.Nd4 c3 21.Bc1 Ra8=) 20...Qd7 21.Nd4 Rc5 22.Bh2 Nfd5 23.Rfd1 Rdc8 24.Rab1 Qe8 (24...Bd4 25.Rd4 Rb5 26.Rbd1-/+) 25.Bd6 (25.e4!? Bd4 26.Rd4-/+) 25...Bd4 26.Rd4 Rb5 27.Rbd1 (27.Rb5 Qb5 28.e4 Qb3 29.Qb3 cb3 30.ed5 b2-+) 27...Qc6 (27...e5 28.R4d2-+) 28.Bg3-/+ Rc5 (28...f6 29.e4 Nb4 30.Qd2-/+) 29.e4 Ne7 (29...Nf6!?-/+) 30.Qc3 (30.Bd6 Qb7 31.Bc5 Rc5 32.Rd8 Kg7=) 30...f6 (30...Qe8 31.Bd6 Rb5 32.Bc4 Nc4 33.Rc4=+) 31.Bf3 (31.Rd6 Qe4 32.Bf3+/-) 31...e5 32.Rd6 Na4 (32...Qb7 33.Rf6 Na4 34.Qe3=) 33.Qc2 Qe8 (33...Qb5 34.Rb1 (34.Rf6 Nc6=) 34...Qa5 35.Ra1=) 34.Rf6+= c3 (34...Rb8 35.Re6 Rb2 36.Re7 A) 36...Rc2?? 37.Re8 Kf7 38.Ra8+- (worse 38.Re5 Re5 39.Be5 Nc5+-); B) 36...Qe7 37.Qa4 Rc7+/-) 35.Bg4+/- R8c7 36.Rfd6 Kg7? (better 36...Qb5!? 37.Qa2 Rc4 38.Be6 Kf8 39.Rd8 Kg7 40.Bc4 Rc4+-) 37.Bd7 Rd7 (37...Qb8 38.Ba4 (38.Qa4?! c2=) 38...Qb2 39.Rd7 Qc2 40.Bc2 Rd7 41.Rd7+-) 38.Rd7 Nb2 (38...Nb6 39.Ra7 Kf8 40.Rb7+-) 39.R1d6 (39.Bh4 Nd1 40.Re7 Qe7 41.Be7 Rc8+-) 39...Nc4 40.Qc3 (better 40.Bh4 Nd6 41.Re7 Kf8 42.Re8 Ne8 43.f3+-) 40...Nd6+/- 41.Qc5 Qd7 42.Be5 Kf7 43.Bd6 a6 (43...Nc8!? 44.Qd5 Qe6 45.Qb7 Ke8+-) 44.Be7+- Qe7 45.Qe7 Ke7 46.Kf1 g5 (46...h5 47.Ke2+-) 47.g3 Kd6 48.f4 h6 (48...gf4 49.gf4 Kc5 50.Ke2+-) 49.Ke2 Kc5 50.Kd3 Kb4 (50...gf4 51.gf4 h5 52.f5+-) 51.f5 (better 51.fg5 hg5 52.h4 gh4 53.gh4 Kc5+-) 51...Kc5 52.e5 Kd5 53.e6 Kd6 54.g4 (54.g4 a5 55.Kd4+-) 1-0. BabaRamdev (2255) - Giri_Anish18 (2205), Rated Rapid game, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)
I found exactly the same game (as above) "played" by: Chandra,Akshat (2535) - Luna Javier,Edgar Froylan (2110), KCF University Cup, 2021. Which one is real?

9.b5 Bb7= 10.Be2 Nbd7 11.0-0 e6 12.a4 a6 13.Qc2 Qe7 14.cd5 ed5 15.Nb3 Ne4 16.Bg7 Kg7 17.Na5 Bc8 18.Nd2 Ndf6 (18...f5 19.Nab3+=) 19.Ne4+/- Ne4 20.Bf3 Bf5 21.Be4 Be4 22.Qc3 Kg8 23.b6 Qd6 24.Rfc1 c4 25.Qd4 Qe6 26.f3 Bd3 27.Ra2 Rab8 28.Rb2 Qe8 (28...Rfe8 29.b7=) 29.Rb4 Bf5 (29...Qe6 30.b7 Rfe8 31.e4 de4 32.Nc4+=) 30.Rc3 (30.e4 de4 31.fe4 Be4+/-) 30...Qd7? (better is 30...Qe6!?+=) 31.e4+– Be6 32.b7 (better is 32.ed5!? Qd5 33.Rcc4 Qa5 34.Rc5 Qb6 35.Rb6 Rb6 36.a5+–) 32...Qc7 33.Rb6 de4 34.Qd6 Qd6 35.Rd6 ef3 36.gf3 Rfe8 37.Kf2 Kg7 38.Re3 Re7 39.Nc6 Reb7 40.Nb8 Rb8 41.Ra6 Rb2 42.Kg3 Ra2 43.a5 Bf5 44.Ra8 Bd3 45.h4 h6 46.a6 g5 47.hg5+– hg5 48.f4 Bf1 49.fg5 c3 50.a7 c2 51.Rc3 Bg2 52.Rac8 Bb7 53.Rc2 Ra7 54.R8c7 Be4 55.Ra7 Bc2 56.Kf4 Bb3 57.Ra6 Be6 58.Rd6 Kg6 59.Rd2 Kg7 60.Rh2?? f6+= 61.Rh6 fg5 62.Kg5 Bg8 63.Ra6 Bb3 64.Ra7 Kh8 65.Kg6 Bg8 66.Rg7 Bb3 67.Kf6 Bg8 68.Rg3 Bh7 69.Kf7 Bc2 70.Rc3 Bf5 71.Rc5 Bb1 72.Rh5 Bh7 73.Kf6 Kg8 74.Rg5 Kh8 75.Kf7 Bc2 76.Rc5 Bb1 77.Rc1 Bd3 78.Rc8 Kh7 79.Rc3 Bg6 ½–½. Shtembuliak,Evgeny (2265) – Kudelya,Igor (2230), Budva MNE, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

9.b5 e6 10.Be2 Bb7 11.0-0 Nbd7 12.a4 Rc8 13.Qc2 Qe7 14.Rac1 e5 15.cd5 e4 16.Ng5 Bd5 17.Bc4 Bc4 18.Qc4 h6 (better 18...Rfe8!?=) 19.Bf6+/- (19.Nge4 Ne4 20.Bg7 Nd2-+) 19...Bf6 20.Nge4 Bg7 21.Qb3 Kh7 22.Nc3 Ne5 23.Nc4 Qe6 24.Ne2 g5 (24...Nc4 25.Rc4 Rfd8 26.Ng3+/-) 25.Qc2 Ng6 (25...Qg6!?+/-) 26.Rfd1 f5 27.Rd6 Qf7 28.Rcd1 Rc7 29.h3 Kh8 30.Qd2 (30.a5 Kg8+-) 30...Ne5? (better 30...Qc4 31.Rg6 Qa4+=) 31.Ne5+- Be5 32.Rh6 Kg7 33.Rc6 c4 (33...Qe7 34.Qc2+-) 34.Qd5 Bb2 (34...Qd5 35.Rd5 Rc6 36.bc6+-) 35.Qd6 Rc6 36.Qc6 Qh5 (36...Re8 37.Ng3 Re6 38.Qc8+-) 37.Qc4 1-0. Nie,Xinyang (2375) - Liu,Zexu (2145), Belt and Road Hunan Op B, 2019. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.bc5 Na6 10.c6 Qb6 11.Bd4 (11.Qb3 Qc6 12.cd5 Nd5+/-) 11...Qc6+= 12.Rc1 dc4 13.Bc4 Be6 14.0-0 Rac8 (14...Bc4 15.Rc4 Qe6 16.Qa4+/-) 15.Be6 (15.Be2 Qd6+=) 15...Qe6+= 16.Qa4 h6 17.h3 (17.Ba7 Rc7 18.Rc7 Nc7+/-) 17...Nb8 18.Rc8 Qc8 19.Nb3 (19.Ba7 Qc6 20.Qc6 Nc6+/-) 19...Nbd7 (19...a6!?+=) 20.Rc1 Qb7 21.Na5 (21.Qa7!? Qd5 22.Qc7+/-) 21...Qa6+= 22.Qc6?? (22.Rc4 Nb6 23.Bb6 Qb6=) 22...Nb6?? (better 22...Qa5 23.a4 e5-+) 23.Rc5?? (better 23.Qc3=) 23...Nfd7-+ 24.Rd5 Rc8 (better 24...Nb8!? 25.Qb5 Nd5 26.Qd5 e6-+) 25.Qb5=+ Qb5 (25...Rc1 26.Kh2 Qb5 27.Rb5=+) 26.Rb5 Rc1 27.Kh2 Rc2 28.Kg3 (28.a3 Bd4 29.ed4 Kg7=+) 28...Bd4 29.Nd4 Ra2 30.Nac6 a6 31.Rb4 e6 ½-½. Mikhnenko,Alexander (2095) - Makhmutov,R (2400), 16th Moscow Open A, 2020. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

9.bc5 Na6 10.cd5 Nc5 11.Bc4 (11.Rc1 Qd5 12.Ba3 Nfe4+/-) 11...Bb7= 12.0-0 Bd5 13.Bd5 Qd5 14.Nb3 Nb3 15.ab3 Rfb8 16.Qd5 Nd5 17.Bg7 Kg7 18.Ra3 Rb7 19.g3 Rc8 20.Rfa1 Rcc7 21.Ra5 Nc3 22.Nd4 Ne4 23.Rb5 Rb5 24.Nb5 Rc2 25.f4 Re2 26.Ra7 Kf6 27.g4 g5 (27...Re3 28.b4=) 28.Nc7 e6 29.Ne8 Kg6 30.Ra6 gf4 31.ef4 Nd2 32.h4 Nf3 33.Kf1 Rd2 ½-½. Babaniya,Benyamin (2180) - Morchiashvili,B (2380), 2nd Aftab Cup Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.bc5!? Nc6 10.Rc1+/-.

7.c4 c6

8.a4 Ba6 9.Rc1 Nbd7 10.Be2 e6 (10...c5 11.dc5 bc5 12.b5+=) 11.0-0 (11.b5 Bb7+=) 11...Rc8 12.Qb3 White prepares the advance b5 12...Qe7? (better 12...c5+=) 13.b5+- dc4 14.Bc4 Bb7 15.bc6 Bc6 16.Ba3 Qd8 17.Bf8 Bf8? (17...Nf8 18.Bb5 Bb7+-) 18.Be6! Qe8 (18...fe6 19.Qe6 Double attack) 19.Bc4 Rc7 20.e4! Nb8 (20...Be4 21.Ne4 Combination; 20...Ne4 21.Ne4 Combination) 21.e5 Ba4 22.Qa2 Nh5 23.e6 Rc4 24.ef7 Qf7 25.Nc4 Bb5 (25...b5 26.Qa1+-) 26.Qb3 (26.Nfe5 Qd5 27.Qa7 Nc6 28.Nc6 Bc4+-) 26...a6 (26...Qd5 27.Qc3+-) 27.Nfe5 Qd5 28.Qe3 Nd7 29.Rfd1 (29.Nd7!? Qd7 30.Nb6 Qf5+-) 29...Nhf6 30.Nd7 Nd7 31.Ne5 Bd6 32.Ng4 h5 33.Rc8 Bf8 34.Ne5 Ne5 35.Qe5 Qe5 36.de5 Kf7 37.Rf8! (37.Rf8 Kf8 38.f4+-) 1-0. Nie,Xinyang (2375) - Garidmagnai,Byambasuren (2320), Belt and Road Hunan Op B, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.a4 Nbd7 9.Be2 a5 10.b5 c5 11.Nb3 Ne4 12.cd5 Bb7 13.Bc4 (13.Nbd2 Nd2 14.Qd2 Bd5=) 13...Rc8 14.Rc1 Nd6 15.Be2 Bd5 16.0-0 e6 17.Ba3 Ne4 18.Bc4 Ba8 19.Bd3 Ng5 (19...Qe7 20.Qe2=) 20.Ne1 (20.Nfd2!? e5 21.dc5 Nc5 22.Nc5 bc5 23.Qe2+/-) 20...Nh3= 21.Kh1 Qh4 22.Qe2 Ng5 (better 22...cd4!? 23.Bf8 Rc1 24.Nc1 Bf8= (worse 24...Nf8 25.f3+/-; worse 24...Kf8 25.f3+/-)) 23.f4+= Ne4 24.Kg1 (24.Be4!? Be4 25.dc5+/-) 24...Rfd8= 25.Nf3 Qh5 26.Qc2 Nef6 27.e4 (27.dc5 Bf8 28.Bb2 Bf3 29.Rf3 Bc5 30.Nc5 Rc5 31.Qd2=) 27...Bb7 (27...c4!?-/+) 28.dc5= Nc5 (28...Bh6 29.c6 Bf4 30.Qe2+- (30.cb7?! Rc2 31.Rc2 Ng4=)) 29.Bc5+= Nd7 30.Be7 (30.Bb6 Nb6 31.Qf2 Na4 32.Rc8 (32.Na5 Rc1 33.Rc1 Rd3 34.Nb7 Qb5-+) 32...Bc8 33.Bc4+/-) 30...Rc2-/+ 31.Rc2 Re8 32.Rc7 Be4 33.Be4 Re7 34.Rd1 Nf6 (34...Qg4 35.Rdd7 Rd7 36.Rd7 Qf4 37.Nfd2-/+) 35.Re7 (35.Rd8 Bf8 36.Re7=) 35...Bf8= (35...Ne4?? 36.Rd8 Bf8 37.Ree8+-) 36.Rd8 Kg7 (36...Ne4? 37.Ree8 Kg7 38.Rf8+-) 37.Rf7?? (better 37.Rc7 Ne4 38.Rdd7=) 37...Kf7-/+ 38.Ng5 (better 38.Ne5!? Kg7 39.Bf3-+) 38...Ke7-+ 39.Bf3 Ng4 40.h3 (40.Ra8 Qh2 41.Kf1 Qf4 42.Ra7 Kf6 43.Rf7 Kg5 44.Rf4 Kf4-+) 40...Kd8 (40...Qh4!? 41.Rd1 Ne3 42.Rd3 Qf4 43.Ne4-+) 41.g3 Qg5?? (better 41...Kd7 42.Bg4 Qh6 43.Ne6 Bb4-+) 42.fg5= Ne5 43.Be2 Nd7 ½-½. Nagy,Ga1 (2470) - Engers,Felix (2115), 28th Erfurt Master Open, 2018. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 b6)

8.Rc1 e6 9.Be2 (9.Bd3 a5 (9...dc4 10.Nc4 Nd5 11.Qd2 b5 12.Na5 Qd6 13.a3 Ne7 14.Qc2+/-) 10.b5 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Be2 Bc6 14.0-0+=; 9.Bc3 dc4 (9...Bb7 10.Bd3 dc4 11.Nc4 Nd5 12.Bd2 f5 13.a3 Qc7 14.h4+/-) 10.Bc4 Nd5 11.0-0 a5 12.Qb3 Nc3 13.Qc3 ab4 14.Qb4=) 9...Bb7 (9...a5 10.b5 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Be2 Bc6 14.0-0+=; 9...dc4 10.Nc4 Nd5 11.Qd2 b5 12.Nce5 Qd6 13.a3 f6 14.Nd3+/-) 10.0-0 Nbd7 (10...a5 11.b5 dc4 12.Bc4 cb5 13.Bb5 Ba6 14.Be2+=) 11.Qb3 (11.Bc3 Qe7 12.Qc2 dc4 13.Nc4 Nd5 14.a3+=) 11...Qb8 (11...a5 12.b5 c5 13.Rfd1 Qe7 14.cd5+=) 12.c5 (12.a4 dc4 13.Nc4 c5 14.dc5+=) 12...bc5 13.dc5 (13.bc5 a5 14.Qc3+=) 13...Rc8 (13...Qc7 14.Qc2+=) 14.Qa3 (14.Qc2+=) 14...a5 15.b5 (15.ba5!? Ba6 16.Ba6 Ra6 17.Bc3+=) 15...cb5= 16.Bb5 Bf8 17.Qa4 Ba6 (worse is 17...Nc5 18.Rc5 Rc5 19.Bf6+/-) 18.Ba6 Ra6 19.c6 Qb2 20.cd7 Qc1 21.Rc1 Rc1 22.Nf1 Ra8 23.Ne5 Ne4 24.f3 Bc5 (24...Nd2! 25.Kf2 Rf1 26.Ke2 Rg1 27.Kd2 Rg2 28.Kc1 Be7= (28...Rh2 29.Qf4 Rh1 30.Kc2+–)) 25.g3 (25.fe4?? Be3 26.Kh1 Rf1) 25...Be3?? (25...Nd2 26.Qf4 A) 26...Nf1 27.Qf7 Kh8 28.Qf6 Kg8 29.d8R Rd8 30.Qd8 Kg7 31.Qc7 Kg8 32.Qf7 Kh8 33.Nd3 Ng3 34.Nc1 Be3 35.Kg2+–; B) 26...Rf1 27.Kg2 Rf3 28.Nf3 Nf3 29.Qc7+– (29.Qf3?! Rd8+=; 29.Kf3?! Be7+–); C) 26...Rf8+–) 26.Kg2+– Bg5 27.fe4 Rc5 (27...de4 28.h4 Be7 29.Nc6+–) 28.h4 Bf6 29.d8Q! Rd8 (29...Rd8 30.Nc6 Double attack (30.Nc6 Decoy); 29...Bd8 30.Qe8 Mate attack) 30.Nd7 Rd7 31.Qd7 de4 32.Nd2 Rc2 33.Kh3 e3 34.Ne4 Bb2 (34...Bg7 35.a4 h5 36.Ng5+–) 35.Qa7 Bc1 (35...e5 36.Qe3 Bc1 37.Nf6 Kf8 38.Qe5+–) 36.Nf6 Kf8 (36...Kg7 37.Qd4 Kf8+–) 37.Nh7 Kg8 38.Ng5 Rf2 39.Qb8 Kg7 40.Ne6! Kf6 (40...fe6 41.Qc7 Double attack (41.Qb6 Decoy)) 41.Nf4 (41.Nf4 Bd2 42.h5 gh5 43.Qd6 Kf5 44.Qe7 Rf4 45.Qf7 Ke4 46.Qf4 Kd3 47.Qf5 Kd4 48.Qh5+–) 1–0. Bortnyk,Olexandr (2555) – Tutisani,Noe (2335), TCh–GEO Club, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.Bd3 Bb7 9.0-0 Nbd7 10.Qb3 e6 11.a4 Qe7 12.Rfc1 Rfc8 13.a5 Rcb8 14.cd5 cd5 15.a6 Bc8 16.b5 Bf8 17.Ba3 Qd8 18.Rc3 Ba3 19.Qa3 Nf8 20.Rac1 Bd7 21.Ne5 Rc8 22.Nc6 Bc6+/- 23.Rc6 Rc6 24.Rc6 Ne8 25.Qc3 Nd7 26.Nf3 Kg7 27.Ne1 Ndf6 28.Nc2 Qd7 29.f3 Ng8 30.Qb4 Rc8 31.Rc8 Qc8 32.Kf2 Qc7 33.g3 Nd6 34.Ke2 Ne7 35.Kd2 Nec8 36.Na3 Kf6 37.e4 Kg7 38.e5 Ne8 39.Qc3 Qc3 40.Kc3+/- f5 41.Nc2 Kf7 42.Nb4 Ng7 43.Nc6 g5 44.Kd2 h6 45.Ke3 Nh5 46.f4 g4 47.Kf2 Ng7 48.Kg2 h5 49.Kf2 Ke8 50.Kg2 Kf7 ½–½. Albrecht,Rainer – Gollasch,Theo Heinz, BL2–N Germany, 1982.

8.Bd3 dc4 9.Nc4 Nd5+=.

8.Be2 Bf5 9.0-0 Nbd7 10.Qb3 Re8 11.cd5 cd5 12.Bb5 Rf8 13.Rfc1 Nb8 14.Ne5 Qd6 15.Ba3 a6 16.Bc6 Nc6 17.Rc6 Qd8 18.b5 Nd7 19.ba6 Ne5 20.de5 Be5 21.Rd1 Ra6 22.Nf3 Bg7 23.Bc5 Qa8 24.Rb6 Rb6 25.Qb6+= Rb8 26.Qa7 Qa7 27.Ba7 Ra8 28.Bc5 Ra2 29.Be7 Bc2 30.Rc1 Bb2 31.Re1 Bc3 32.Rc1 ½–½. Whitfield,Craig M (2020) – Brown,Martin (2220), North Shields ENG, 2012.

8.Ne5 Ne4 9.cd5 (9.Ne4 de4 10.b5 Qc7+=) 9...Nd2= (9...Qd5? 10.Bc4 Nf2 11.Kf2+– (11.Bd5?! Nd1 12.Nc6 Nc6 13.Bc6 Nb2 14.Ba8 Nd3 15.Ke2 Nb4+=)) 10.Qd2 Qd5 11.Nd3 (11.Qc3 Rd8=) 11...a5 (11...Rd8 12.Nf4 Qd6 13.Rd1=) 12.ba5 Ra5 13.Bc3 Ra4 (13...Ra7 14.Nf4 Qd6 15.a4=) 14.Nf4 (14.Qc2 Ra7=) 14...Qd6 15.Qb2 (15.Qc2 Ra7=) 15...Nd7 16.Rd1 Bb7 17.Be2 (17.Qb3 b5=) 17...Rfa8+= 18.Ra1 c5 (18...e5 19.de5 Be5 20.0-0+=) 19.dc5 Bc3 20.Qc3 Qc5 21.Qc5 (21.Qd2 Qa5 22.Qa5 R8a5-/+ (worse is 22...ba5 23.Bb5 Rf4 24.ef4 Bg2 25.Rg1+=)) 21...Nc5–+ 22.0-0 (22.Rd1 Ra2 23.Bc4 Rc2–+) 22...Ra2 23.Ra2 Ra2 24.Bf3 Bf3 25.gf3 Rb2 (25...e5 26.Nd5–+) 26.Nd5 (26.Rd1 g5 27.Nh5 f5–+) 26...Kf8 (26...e6 27.Nf6 Kg7 28.Ne8 Kh6 29.Ra1–+) 27.Rc1 Nd3 28.Rc8 Kg7 29.Ne7 Nf2 30.Rb8 (30.Nc6 b5–+) 30...Nh3 31.Kh1? (31.Kf1–+) 31...Ng5 32.Kg1 Nf3 33.Kf1 Nh2 34.Ke1 h5 35.Nd5 (35.Kd1 Ng4 36.Kc1 Rb5–+) 35...Nf3 (35...Nf3 36.Kf1 b5–+) 0–1. mgilbert – pcmvr, net–chess.com, 2017.

8.Ne5 Bf5 9.Be2=.

7.c4 e6

8.a4 Nc6 9.b5 Na5 10.Be2 dc4 11.Nc4 Nc4 12.Bc4 Bb7 13.0-0 Ne4 14.Qe2 c5 15.bc6 Bc6 16.Bb5 Qd5 17.Bc6 Qc6 18.Rfc1 Qd5 19.Qa6 (19.Rc4!?=) 19...Nc5=+ 20.dc5 Bb2 21.Rd1 Qc5 22.Rab1 Bf6 23.Rd7 (23.Rdc1 Qd6=+) 23...Qc8 24.Qb5 Rd8 25.Rd8 Qd8 26.e4 Rc8 27.e5 Be7 28.h3 Rc2 29.Qb3 Qc7 30.Rb2 Rc3 31.Qb5 Kg7 32.Rd2 (better 32.Rb1!?-/+) 32...Rf3!-+ 33.Rd7 (33.gf3 Qc1 Double attack (33...Qc3 Decoy)) 33...Qc1 34.Qf1 Qf1 35.Kf1 Ra3 36.Re7 Ra4 37.Rb7 g5 38.g4 Ra5 39.f3 b5 40.Ke2 a6 41.Kd3 Ra3 42.Ke4 Ra4 43.Kd3 b4 44.Kc4 (44.f4 gf4 45.Ke4 b3 46.Kf3 Ra3-+) 44...a5 45.Ra7 (45.Kd3 Ra3 46.Ke4 b3-+) 45...Ra3 46.Ra6 Rc3 47.Kd4 Rf3 0-1. Antonova,N (2035) - Khoroshev,N (2415), SCO National Chess Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 b6 6.Bb2 0-0)

8.Rc1 dc4 9.Nc4 Nbd7 10.Be2 Bb7 11.0-0 Qe7 12.a4 Rfd8 (12...Qb4?? 13.Ba3 Qa3 14.Na3+–) 13.Ba3 Ne4 14.Qc2 Rac8 15.b5 Qe8 16.Nfe5 Ne5 17.de5 (17.Ne5? Be5 18.Bf3 Bd6 19.Be4 Be4 20.Qe4 Ba3–+) 17...Bd5 18.Rfd1 Bf8 19.Bb2 Nc5 20.Nd2 Bb7 21.Bd4 Be7 22.Bc5 Bc5 23.Bf3 Bf3 24.gf3 Kg7 25.Ne4 Be7 26.Rd8 Qd8 27.Rd1 Qe8 28.Rd4 c5 29.Rd2 Rd8 30.Qd1 Rd2 31.Qd2 Qd8 32.Qd8 Bd8 33.Nd6 Kf8 34.f4 Bc7 35.Ne4 Bd8 36.Kg2 Be7 37.Kf3 Ke8 38.Nd2 Kd7 39.Nc4 f5 40.ef6 Bf6 41.Kg4 h5 42.Kf3 Bc3 43.Ke4 Ke7 44.Kd3 Bf6 45.a5 ba5 46.Na5 Bh4 47.f3 Bf2 48.Ke4 Kf6 49.Nc4 Be1 50.Ne5 Ba5 51.Nd7 Ke7 52.Nc5 Bc3 53.Kd3 Ba5 54.Nb3 Bb6 55.Nd4 Kd6 56.Kc4 e5 57.fe5 Ke5 58.Kd3 Kd5 59.f4 Kc5 60.e4 Kb4 61.e5 Kc5 62.Ke4 Kc4? (62...h4+–) 63.e6 Bc5 64.Nc6 Kb5 65.e7 (65.Na7 Kb6 66.e7 Be7 67.Nc8 Kc5 68.Ne7 Kd6 69.Ng6 Ke6+–) 65...Be7 66.Ne7 a5 67.Kd3 1–0. Kunte,Abhijit (2550) – Konguvel,Ponnuswamy (2400), IND–ch Visakhapatnam, 2004. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.Be2 Bb7 9.0-0 Nbd7 10.Rc1 c6 11.a4 a5 12.cd5 ed5 13.b5 c5 14.Ba3 Qe7 15.Nb3 Ne4 (15...Rfc8 16.dc5 Nc5 17.Nc5 bc5 18.Nd2+=) 16.Nfd2 Rfc8 (16...Rad8 17.dc5 Nec5 18.Nc5 Nc5 19.Nb3+–) 17.Ne4+– de4 18.dc5 Nc5 (18...bc5!? 19.Qd2 Rd8+–) 19.Nc5+– bc5 20.Qb3 Rd8 (20...Be5 21.Rfd1+–) 21.Rc5 Be5 (21...Qf6 22.Rc7 Bd5 23.Bc4+–) 22.Rc2?? (better 22.b6 Qf6 23.Bc4+–) 22...Bd5 23.Bc4 (23.Be7 Bb3 24.Rc5 Rd5 25.Rd5 Bd5+–) 23...Qg5 (23...Bc4!? 24.Rc4 Qe6+–) 24.Bb2 Bb2 (24...Bc4 25.Qc4 Bb2 26.Rb2+–) 25.Qb2 Bb7?? (better 25...Rd6+–) 26.Bf7! (26.Bf7 Kf7 27.Rc7 Ke6 28.Rb7+–) 1–0. Harutyunian,T (2500) – Sattarov,B (2325), 13th Poti Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 b6)

8.Be2 Bb7 9.a4 Nbd7 10.0-0 c5 11.cd5 Bd5 12.dc5 bc5 13.b5 Rc8 14.Rc1 Ne4 15.Bg7 Kg7 16.Qc2 Ndf6 17.Rfd1 Qe7 18.Nc4 Rfd8 19.Nfe5 Nd6 20.f3 Nc4 21.Nc4 Bc4 22.Bc4 Nd5 23.e4 Nb4 24.Qc3 Kg8 25.g3 Rd1 26.Rd1 Rd8 27.Rd2 Rd2 28.Qd2 Qf6 29.Be2 Qe7 30.e5 Nd5 31.Bc4 Qb7 32.a5 Nc7 33.Qd3 Kg7 34.Kf2 Nd5 35.Qe4 Qd7 36.Qd3 Qb7 37.f4 Qc7 38.Qd2 Nb4 39.a6 Nd5 40.Qd3 Qa5 41.Bd5+/- ed5 42.Qd5 Qb5 43.Qb7 Qd3 44.Qa7 Qd2 ½–½. Plante,Michel (1985) – Kraiouchkine,Nikita (1760), Quebec–ch qual2, 2005. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

8.Be2 dc4 9.Nc4 Bb7 10.0-0 Nbd7 11.a4 Ne4 12.Qc2 Qe7 13.Rfc1 (13.b5 Nd6+=) 13...Rfc8 (13...Qb4?? 14.Ba3 Qc3 15.Qd1+– (worse is 15.Qc3 Nc3 16.Rc3 c5+–)) 14.h3 Bd5 (14...Qb4?? 15.Ba3 Qc3 16.Qa2+– (worse is 16.Qc3 Nc3 17.Rc3 Nc5+–)) 15.Ncd2 Nd2 (15...Qb4? 16.Ba3 (16.Ne4?! Be4 17.Qe4 Qb2+/-) 16...Qc3 17.Qc3 Nc3 18.Rc3+–) 16.Qd2 Bb7 (16...Nf6 17.Qe1=) 17.a5 Nf6 18.b5 Ne4 19.Qc2 (19.Qe1 c5+=) 19...c5= 20.bc6 Rc6 21.Qa4 Rac8 22.Rc6 (22.Bd3 Qd7 23.Rcb1 Qd5 24.ab6 ab6=) 22...Bc6 (worse is 22...Rc6 23.ab6 ab6 24.Qa7+=) 23.Bb5 Bd5 24.ab6 ab6 25.Bd3 Nc5? (better is 25...Qd8!?=) 26.Qc2+/- (worse is 26.dc5 Bb2 27.Rb1 Qc5-/+) 26...Bf3 27.gf3 Qg5 28.Kf1 (28.Kh2!? Qf6 29.Be2+/-) 28...Qd8+= 29.Rc1 (worse is 29.dc5 Rc5 30.Bc4 Bb2 31.Qb2 Rc4-/+) 29...Rc7 30.Be2 (30.dc5?! Rc5 31.Bc4 Bb2 32.Qb2 Qc8=) 30...Na6 31.Qb3 Rc1 32.Bc1 Nb8 33.Bd2 Nd7 34.Qb5 Nf6 35.Bc4 Nd5 36.Ke2 h5 37.Qc6 Bf8 38.Qb7 Be7 39.e4 Nb4 40.Bc3 White prepares the advance d5 40...Bf8 41.Bb4 (41.Bb3!?+=) 41...Bb4= 42.d5 ed5 43.Bd5 (worse is 43.ed5 Qf6 44.d6 Bc5-/+) 43...Qf6 44.Qb8 Kg7 45.e5 (better is 45.f4!?=) 45...Qf4-/+ 46.Qb6 Qe5 47.Be4 Bc5 48.Qb7 Qd4 49.Bd5 Qf2 50.Kd1 Qd4 51.Kc2 Qf6 52.Qd7 Be7 53.Kd3 Qe5 54.Bc4 Qg5 (54...Qe1 55.Qc7-/+) 55.Qd4 (55.Qd5 Qf6 56.Qd4 Bd6=) 55...Bf6 (55...Kg8!?-/+) 56.Qd5= Qd5 57.Bd5 ½–½. Chadaev,Nikolai (2590) – Kryakvin,Dmitry (2570), Petersburg Summer Rapid, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

7.Be2 Bb7

8.a4 a5 9.b5 Nbd7 10.0-0 c5 11.bc6 Bc6 12.c4 dc4 (12...Rc8 13.Rc1+=) 13.Bc4 Rc8 14.Qb3 e6 (14...Rc7 15.Rac1+/-) 15.Rac1 Re8 16.Rc2 Ne4 17.Rfc1 Bb7 18.Bb5 Rc2 19.Qc2 Nd2 20.Nd2 Qg5 21.Ne4 Qe7 22.Qd3 Rd8 (22...Qb4 23.Bd7 Rd8 24.Ba3 Be4 25.Bb4 (25.Qe4? Qa3 26.Qc6 Rd7–+) 25...Bd3 26.Be7 Rd7 27.Rc8 Bf8 28.Bf8+= (worse is 28.Rf8 Kg7 29.Re8 Bc2+=)) 23.Ba3 Qh4 (23...Nc5 24.Nc5 bc5 25.Bc5+/-) 24.Nd6+– Ba8 25.Bd7 Rd7 26.Rc8 Rd8 27.Qc2 (better is 27.Qa6!? Bd5 28.e4 (28.Qb6?! Rc8 29.Nc8 Bf8 30.Bf8 Qg4+=) 28...Bd4 29.Rd8 Qd8 30.ed5+–) 27...Bf8+= 28.Nf7 Kf7 29.Qc7 Ke8 30.Bf8 Rc8 31.Qc8 Qd8 32.Qd8 Kd8 33.f3 (33.f4 Bc6=) 33...Bc6 34.Kf2 Ba4 35.Kg3 (35.e4 Ke8 36.Bd6 Kd7+=) 35...b5 36.Kf4 Kd7 37.Ke5 b4 38.e4 White prepares the advance d5 38...Bb3 (38...b3 39.Ba3-/+) 39.d5 (39.f4 Bd1+=) 39...ed5-/+ 40.ed5 Bc4 (40...Bd1 41.Kd4-/+) 41.f4 (41.h4 b3 42.Ba3 h6+=) 41...Bf1 (41...b3 42.Ba3-/+) 42.g4+= Bh3 43.g5 b3 44.Ba3 Bg2 (44...a4!?+=) 45.h4 Bf3 46.Bb2 a4 47.Ba3 Bg2 (47...Kd8!?+=) 48.f5= gf5 49.h5 Ke8 (49...f4 50.g6 hg6 51.hg6=) 50.d6+= Bc6 51.g6 (better is 51.Kf5!? Bf3 52.g6 hg6 53.hg6+=) 51...hg6+= 52.hg6 Bb5 (better is 52...Bd7!?+=) 53.Kf5+= Bc4 54.Ke5 Kd7 (54...Bd3 55.g7 Bc4 56.Bc1=) 55.Kd4 Bg8 (55...Be6 56.Kc5+=) 56.Kc5 ½–½. Peng,Xiongjian (2410) – Peng,Hongchi (2220), World Junior Open, 2017. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6 7.Be2 Bb7)

8.a4 Nbd7 9.a5 a6 (9...Ne4 10.a6 Bc8 11.Ne4 de4 12.Nd2=) 10.0-0 b5 11.Nb3 Ne4 12.Ne5 Ne5 13.de5 c5 14.f3 c4 15.Nd4 (15.fe4?! cb3 16.ed5 bc2 17.Qc2 Rc8= (worse is 17...Bd5 18.Rad1 Qc8 19.Qc8 Rfc8 20.Rd5+=)) 15...c3 16.Bc1 Be5 (better is 16...Ng5!? 17.h4 Ne6 18.Ne6 fe6+/-) 17.fe4+/- de4 18.Qe1 Rc8 19.Nb3 Bd5 20.Nc5 Qd6 21.Qh4 Rc5 22.bc5 Qc5 23.Rd1 e6 24.Rd4 Bd4= 25.ed4 Qd4 26.Qf2 Qf2 27.Kf2 Rc8 28.g4 f5 29.Bf4 Kf7 30.h4 Bc4 31.Rd1 Be2 32.Ke2 fg4 33.Ke3 b4 34.Rb1 e5 35.Be5+/- Ke6 36.Ke4 Rc5 37.Bd4 Rb5 38.Bc3! bc3?? 39.Rb5+– ab5 40.a6 g3 41.Kf3 (41.Kf3 b4 42.a7+–) 1–0. Le Roux,JP (2555) – Moussard,J (2410), Paris FRA, 2012.

8.0-0 Nbd7

9.a4 c5 10.b5 Rc8 11.Ne5 (11.a5 cd4 12.ed4 Re8+=) 11...Ne5 (11...Qc7 12.c4=) 12.de5 Nd7 13.f4 e6 14.c4 f6 15.cd5 ed5 16.e6 Nb8 17.f5 gf5 (17...Bh6 18.Ra3+=) 18.Bd3 (18.Rf5?! Qe7=) 18...c4? (better 18...Bh6!?+=) 19.Bf5+- c3 (19...Rc7 20.Qh5 Bh6 21.Qh6+-) 20.Qh5 h6 21.Qg6 Re8 22.Qh7 (22.Ba3 Rc5 23.Nb3 Re7 24.Nc5 bc5 25.Bc5 Qc7+-) 22...Kf8 23.Ba3 (23.Ba3 Rc5 24.Nb3+- (worse 24.Bc5 bc5 25.Nb3 Qd6+-)) 1-0. BabaRamdev (2695) - cemilchess (2635), Rated Blitz game, lichess.org, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.a4 c5 10.bc5 bc5 11.a5 a6 12.c4 dc4 13.Nc4 Rc8 14.Nfe5 cd4 15.Bd4 Ne5 16.Be5 Rc5 Attacks the isolani on a5 17.Qd8 (17.Qd4 Qd5 18.Bf3 Qd4 (18...Rc4? 19.Bd5 Rd4 20.Bb7+-) 19.Bd4 Rb5 (19...Rc4? 20.Bb7 Rb4 21.Ba6+-) 20.Bb7 Rb7=) 17...Rd8= 18.Bd4 Rg5 19.f3 Nd5 (19...Rd4 20.ed4 Nh5+=) 20.Bg7+= Kg7 21.Rfd1 Rc8 22.Rac1 (better 22.Ra3+=) 22...Rc4-/+ 23.Bc4 Ne3 24.Rd7?? (better 24.Rd2 Rc5 25.Rd4-+) 24...Rg2-+ 25.Kh1 Bf3 (25...Bf3 26.Bd5 Rc2 (26...Bd5?! 27.Rd5 Ra2 28.Rdc5-+) 27.Bf3 Rc1 28.Bd1 Rd1 29.Rd1 Nd1-+) 0-1. BabaRamdev – RebeccaHarris, Titled Arena September ‘19, lichess.org, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.a4 c5= 10.dc5 bc5 11.b5 a6 12.c4 Qc7 13.Qb3 dc4 14.Nc4 Bd5 15.Rfd1 e6 16.Nfd2 Nb6 17.Qc2 Nc4 18.Nc4 ab5 19.ab5 Be4 20.Qb3 Bd5 21.f3 Nd7 22.Bg7 Kg7 23.Qc3 Kg8 24.Ra6 Ra6 25.ba6 Ra8 26.Nd2 Qe5 27.Qa3 f5 28.Bb5 Qc7 29.e4 Bc6 30.Bc4 Qe5 31.Qd3 Kg7 32.ef5 ef5 33.Nb3 Ba4 34.Rf1 Ra7 35.f4 Qe7 36.Qc3+= Kh6 37.Rf3 g5?? 38.fg5 Kg6 1–0. Denayer,E (2215) – Hensbergen,W (2100), Open Geraardsbergen BEL, 2010.

9.a4 c5 10.dc5 bc5 11.b5 c4 12.Bd4 Qc7 13.Qc1 e5 14.Bc3 a5 (14...Rfe8 15.Qb2=+) 15.Re1 Rfe8 16.h3 (16.Qb2 Ng4 17.h3 Nh6=) 16...Nb6 17.Qb2 Nfd7 18.Ra2 Nc5 19.Rea1 (19.Qa1 f5=+) 19...f6 20.Bf1 Bc8 21.Qc1 Be6 22.Qe1 Bf7 (22...Reb8 23.Nb1 Nba4 24.Ra4 Na4 25.Ra4 Rb5 26.e4-/+) 23.Nb1=+ Qa7 24.Qc1 Rad8 (24...Be6 25.Be2=+) 25.Qe1= Ra8 26.Qc1 Bf8 27.Nbd2 Rad8 28.Qb2 Bg7 29.Qc1 Rd7 30.Qb2 Red8 31.Qa3 (31.Kh2 Ne6-/+) 31...Bf8 (31...Nca4!? 32.Nb1 Bf8-+) 32.Qb2-/+ Be7 33.g4 g5 (33...Ne6 34.Re1-/+) 34.Be2 (34.Bg2 Ne6 35.Re1 d4 36.ed4 ed4 (36...Nd4?! 37.Ne4=+) 37.Nd4 Nd4 38.Re7 Re7 39.Bd4 Na4 40.Ba7 Nb2-/+) 34...Bf8 (34...Ne6!?-+) 35.Nf1 Ne4 36.Be1? (better 36.Rd1!?-/+) 36...d4-+ 37.ed4 ed4 38.Rd1? (better 38.c3 d3 39.Bd1-+) 38...d3 39.cd3 cd3 40.Rd3 Rd3 41.Bd3 Rd3 42.Qe2 Rf3 (better 42...Nc5!? 43.Rd2 Ra3 44.Ne3-+) 43.Qf3 Ba2 44.Qe4 Bb3 45.Ne3 Na4 46.Nd5 (46.Qe8 Nc5-+) 46...Bd5 (46...Qf7 47.Ne3 Nc5 48.Qa8-+) 47.Qd5 Qf7 (47...Kg7 48.h4 gh4 49.g5-+) 48.Qa8 (48.Qf7 Kf7 49.Ba5 Ke6-+) 48...Qe6 (48...Qb3 49.Qa5 Nc5 50.Qc3-+) 49.Qa5 (49.Ba5 Kg7-+) 49...Nc5 50.b6? (50.Bb4 Nd3 51.Bf8 Nf4-+) 50...Qe4 (better 50...Nb3 51.Qc3 Qb6 52.Qb2-+) 51.Bb4?? (better 51.Bc3 Kf7 52.Qa2 Ne6 53.Bd2-+) 51...Nb3 52.Qa2 (52.Qb5 Qb4 (52...Bb4?! 53.b7 Bd6 54.b8Q Bb8 55.Qb3 Kg7 56.Qb8=) 53.Qd5 Kg7 54.Qd7 Kh6-+) 52…Qb4 (52...Bb4?! 53.Qb3 Kg7 54.Qg3-/+) 0-1. BabaRamdev (2740) - howitzer14 (2735), Rated Blitz game, lichess.org, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.a4 Rc8 10.a5 c5 11.bc5 bc5 12.a6 Ba8 13.c4 cd4 14.Bd4 Nb6 15.Ne5 (15.c5 Nbd7=) 15...Nfd7 (15...dc4 16.Bb6 Qb6 17.Ndc4=+) 16.Nd7+= Bd4 17.ed4 Nd7 18.c5 e5 19.Bb5 (19.de5 Nc5 20.f4 d4=) 19...ed4= 20.Bd7 Qd7 21.Nb3 Qb5 22.Nd4 (22.f4 Rfe8=) 22...Qc5=+ 23.h4 (23.Re1 Qb6=+) 23...Rfe8 24.h5 Re4 25.Ra4 (25.Rc1 Qf8 26.Qd3 Rce8=+) 25...Bc6 26.Nc6 Qc6 27.Re4 de4 28.Qd4 f6 (28...gh5 29.Qa7 Ra8 30.Qb7 Ra6 31.Qb8 Kg7 32.Qe5 f6 33.Qh5=+) 29.h6 (better 29.Qa7 Ra8 30.Qe7 Qa6 31.hg6 hg6 32.Qe4+=) 29...g5?? (better 29...Rc7=+) 30.Qa7+- Rc7 31.Qb8 Rc8 32.a7 Qa8 (32...Kf7 33.Ra1 Kg6 34.a8Q Qa8 35.Qa8 Ra8 36.Ra8 Kh6 37.g4+-) 33.Rb1 Kf7 34.Rb7 (34.Qb7 Kg6 35.Qg7 Kh5 36.Qf7 Kg4 37.Qf6 Rc6+-) 34...Kg6 35.g4 e3 36.fe3 Re8 (36...Rc1 37.Kf2 Rc8 38.Ke2+-) 37.Kf2 (37.Qh2 f5 38.Qd6 Re6 39.Qe6) 37...Rd8 (37...Rc8 38.Kf1+-) 38.Ke2 (38.Qc7 Rd2 39.Kg3 Qb8 40.ab8Q Rg2 41.Kg2 Kh6 42.Qh7) 38...Rc8 39.Ke1 Re8 (39...Rb8 40.ab8Q Qb8 41.Rb8 Kf7+-) 40.Qh2 Re3 41.Kd2 Qd8 (41...Rh3 42.Qh3 Qd8 43.Qd3 Qd3 44.Kd3 f5 45.a8Q fg4 46.Rb6 Kf7 47.Qa7 Ke8 48.Rb8) 42.Ke3 Qe8 (42...f5 43.Qh5 Kf6 44.Qf7 Ke5 45.Rb5 Kd6 46.Qd5 Ke7 47.Rb7 Qc7 48.Rc7 Kf6 49.Qf5) 43.Kd4 (43.Kf2 Qe1 44.Ke1 f5 45.Qd6) 43...Qa4+- 44.Kc5 Qa3 45.Kc6 Qf3 46.Kb6 (46.Kd6 Qd3 47.Ke7 Qa3 48.Qd6 Qf3 49.a8Q Qe2 50.Kf8 Qe5 51.Qe5 fe5 52.Qa6) 46...Qg4 47.Qh5 (47.Rg7 Kf5 48.Qc2 Kf4 49.a8Q Qg1 50.Kc7+-) 47...Qh5? (better 47...Kh5 48.a8Q Qe6 49.Kc5 Qe5 50.Kc4 Qe4 51.Kb3 Qd3 52.Ka2 Qd5 53.Kb2 Qd2 54.Ka3 Qd6 55.Rb4 Kh6+-) 48.a8Q+- Qf3 (48...Qd1 49.Qg8 Kh5 50.Qf7 Kg4 51.Qf6 Qb1 52.Kc7 Qe4+-) 49.Kc7 (49.Rg7 Kh6 50.Rh7 Kh7 51.Qf3+-) 49…Qc3 (49...Qc3 50.Kd8 Qc5+-). BabaRamdev (2745) - Nesty_Javi_Chess (2665), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6)

9.Nb3 Ne4+=.

9.b5 a6 10.a4=.

9.b5 Ne8 10.c4 Nd6 (10...dc4 11.Nc4 a6 12.a4+=) 11.cd5+= Nf6 12.Ne5 Nd5 13.Qc2 (13.Qb3 e6+=) 13...e6 14.Ndf3 (14.g3 Bh6+=) 14...Qe8 15.a4 f6 16.Nc4 Qe7 (16...Qd7 17.Rfc1=) 17.Ba3+= Rfc8 18.Qb3 (18.g3 Qe8+=) 18…Bf8 ½–½. Aldea,Laurentiu_Ioan (2340) – Sandor,Petrut (2235), Olanesti ROM, Team National Ch (m), 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 b6 7.Be2 Bb7)

9.c4 c6 10.a4 a5 11.b5 c5 12.Rc1 Rc8 13.Ba3 Re8 14.cd5 Nd5 15.Nc4 cd4 16.Nd4 Ne5 17.Ne5 Be5 18.Nc6 Bc6 19.Rc6 Rc6 20.bc6 Nc3 21.Qc2 Ne2 22.Qe2 Qc7 23.f4 Bd6 24.Bd6+= ed6 25.Rc1 Re4 26.Rc4 Re6 27.Qd3+/- d5 28.Qd5 Re3 29.Kf2 Re7 30.Kf3 Kg7 31.g4 Re6 32.h4 Kf8 33.g5 Re8 34.Qd4 Re6+= 35.Qd5 Re8 36.Rd4 Rc8 37.Rc4 Re8+= 38.Rd4 Rc8 39.Qd6 Qd6 40.Rd6 Ke7 41.Rf6 Rd8 42.c7 Rc8 43.Rb6 Rc7 44.Rb5 Rc3 45.Kg2 Rc7 46.Kf3 Rc3+/- 47.Kg2 Rc7 48.Kf3?? Rc3= 49.Kg2 ½–½. Gagarin,V (2400) – Abreu Delgado,A (2470), XXXIII Open, Barbera del Valles ESP, 2010.

9.c4 Ne4 10.cd5 Bd5 11.Qc2 Nd2 12.Nd2 a5 13.e4 Bb7 14.b5 e6 15.Bf3 Rc8 16.e5 Bf3 17.Nf3 c6 18.bc6 Nb8 19.Ba3 Re8 20.Bd6 (20.Qb3 Nc6 21.Rfd1 Ne7+=) 20...Nc6= 21.Qb2 Bf8 22.Bf8 Rf8 23.Qd2 Kg7 24.Rac1 Qe7 25.d5 ed5 26.Qd5 Rfd8 27.Qb5 Qb4 28.Qe2 Nd4 29.Nd4 Qd4 30.Rc8 Rc8 31.g3 a4 (31...Rc5 32.Re1=) 32.e6 fe6 33.Qe6 Rf8 34.h4 h5 35.Qe2 Kh6 36.Kg2 ½–½. Shepelev,I (2115) – Otero,Harlen (2035), Chennai IND, 2012. (=1.d4 (D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4) 1...d5 2.Nf3 g6 3.b4 Bg7 4.Bb2 Nf6 5.e3 0-0 6.Nbd2 b6).

6.e3 c6

7.a4 a5 8.b5 Bg4 9.Be2 Nbd7 (9...cb5 10.ab5 Nbd7 11.c4=) 10.h3 Bf3 11.Bf3 (11.Nf3 cb5 12.ab5 Qc7=) 11...Qc7 (11...cb5 12.ab5 Qc7 13.Ba3=) 12.Rc1 (12.bc6 bc6 13.c4 Rfb8=) 12...cb5 13.ab5 Nb6 14.c3 (14.Ba3 Rfe8 15.0-0 Qc3=) 14...Rfc8+= 15.Be2 Qd6 16.Qb3 (16.0-0 a4+=) 16...a4 17.Qa2 (17.Qa3 Qe6+=) 17...a3 18.Ba1 e6 (18...Qe6 19.0-0+=) 19.0-0= Nfd7 20.Rc2 h5 (20...e5 21.c4 ed4 22.ed4 dc4 23.Nc4=) 21.Rfc1 Bf8 22.Bd3 h4 23.Be2 (23.c4 Nc4 24.Nc4 dc4=) 23...Be7 (23...Ra7 24.c4 dc4 25.Nc4 Nc4 26.Rc4 Rc4 27.Qc4=) 24.c4 dc4 25.Bf3 Qb8 (25...Ra7 26.Nc4 Nc4 27.Rc4 Rc4 28.Qc4=) 26.Nc4+= Nc4 (26...Ra7 27.Nb6 Rc2 28.Rc2 Nb6 29.d5+=) 27.Rc4 Rc4 28.Qc4 Nb6 29.Qb3 (29.Qc7 Qc7 30.Rc7 Kf8 31.Rb7 Nd5 32.Bd5 ed5=) 29...Bd6 30.Be4 (30.d5 A) 30...ed5? 31.Qc3 (31.Bd5?! Nd5 32.Qd5 Ra4+/-) 31...Bh2 32.Kf1+–; B) 30...e5+=) 30...Kg7 31.f4 (31.d5 e5=) 31...a2 32.Rc5 (32.Bb2 Ra4=) 32...Qa7 33.Kf2 (better is 33.Rc3=) 33...Qa3 (better is 33...e5!? 34.Re5 Be5 35.de5 Qa3=) 34.Qa3+= Ra3 35.Bb7 Rb3 36.Rc2 Nd5 37.Bd5 (37.Ra2 Ne3 38.d5 Kh6 39.de6 fe6+/-) 37...ed5+= 38.Ra2 Rb5 39.Bc3 Kf6 40.Ra6 Ke6 41.Kf3 Kd7 (41...Rb1 42.Kg4+/-) 42.Ra8 (42.Ra7 Ke6+/-) 42...Be7 (42...Rb1 43.Ra1 Ra1 44.Ba1+/-) 43.Be1 (43.Ra5 Rb3 44.Rd5 Kc6+/-) 43...Rb3 (43...Rb1 44.Bf2+/-) 44.Ra7 Ke6 45.Ra6 (45.g4 hg3 46.f5 gf5 47.Ra6 Kd7 48.Bg3 Bg5+/-) 45...Kd7 46.Bf2 Rb2 (46...Rc3 47.g4+/-) 47.f5! gf5 48.Rh6 Bg5 (48...f4!? 49.ef4 Rb3 50.Kg4 Rb2 51.Bh4 Bh4 52.Rh4 Rg2 53.Kf5 Re2+/-) 49.Rh5+– (49.Rh4? Rf2 50.Kf2 Bh4 51.g3 Be7–+) 49...f6 50.Bh4 1–0. Cordova,Emilio (2645) – Diaz Rosas,Julio Cesar (2310), LXIII Mexican Open, 2017. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 c6)

7.a4 Nbd7 8.c4 e6 (8...dc4 9.Nc4 Nb6 10.b5=) 9.Be2 Ne4 (9...a5 10.b5+=) 10.Ne4 de4 11.Nd2 f5 (11...Qe7 12.Qc2+=) 12.0-0 (12.c5 Nf6+=) 12...e5 Black plans f4 13.d5 (13.c5 ed4 14.Bc4 Kh8 15.Bd4 Bd4 16.ed4 Nf6+=) 13...c5 (13...cd5 14.cd5 Nb6 15.Bc4=) 14.Nb3 (14.Qb3 Qe7+=) 14...cb4= 15.c5 Nf6 (15...a5 16.d6+=) 16.Bc4+= f4 (16...Re8 17.a5+=) 17.Be5+/- f3 (17...Bg4 18.d6 Kh8 19.Be2 Be2 20.Qe2+/-) 18.gf3 Bh3 19.d6 Kh8 20.fe4 (20.Re1+/-) 20...Ne4? (better is 20...Bf1 21.Bf1 Re8+=) 21.Bg7+– Kg7 22.Qd4 Kh6? (better is 22...Nf6 23.Rfd1 Qd7+–) 23.Qe4 Qg5 (23...Bf1 24.Bf1 Qf6 25.Ra2+– (25.Qb7?! Qf2 26.Kh1 Rab8+–)) 24.Kh1 Rae8 25.f4 Qf6 (25...Re4?? 26.fg5 Kg7 27.Bd5 Re3 28.Rfe1+–) 26.Qf3 Bf1 27.Rf1 (27.Bf1?! Qc3 28.d7 Re3+–; 27.Qf1?! Re3 28.Rd1 Qh4+/-) 27...Qc3 28.Rc1 (better is 28.Be6! Qd3 29.Rd1 Qc3+–) 28...Qe3 29.Qe3 (29.Qb7?! Rf4 30.Bd5 Rf2+=) 29...Re3 30.Na5 (30.Rd1 Rc3 31.Be6 Re3+–) 30...Rf4 (better is 30...Rc3 31.Rc3 bc3+–) 31.Nb7 Rc3 32.Rb1 (better is 32.Rc3 bc3 33.Bb3+–) 32...Rcc4 33.d7 Rfd4?? (33...Rf8 34.d8Q Rd8 35.Nd8 a5+–) 34.Nd6 (34.Nd6 Rc5 35.d8Q+–) 1–0. Bortnyk,Olexandr (2550) – Kovalev,Vladislav (2545), European Blitz, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 c6)

7.a4 Nbd7 8.Be2 a5 9.ba5 (9.b5 Nb6=) 9...Qa5+= 10.0-0 Qc7 (10...Ne4 11.c4+=) 11.c4= e6 (11...dc4 12.Nc4 Nb6 13.Nce5=) 12.Qc2 (12.cd5 ed5 13.Qc2=) 12...h5 (12...b6!?=) 13.Rfc1+/- dc4 (13...Re8 14.h3+/-) 14.Nc4 Re8 (14...Nd5 15.a5+/-) 15.a5 Nd5 (15...Rd8 16.g3+/-) 16.e4 (better is 16.g3+/-) 16...Nb4? (better is 16...Nf4!?+/-) 17.Qd2+– Na6 18.e5 Bf8 19.Ba3 Ba3?! (19...c5+–) 20.Ra3 (20.Na3?! Nf8 21.Ng5 Nh7+–) 20...Qd8 (20...Nf8+–) 21.Qh6 Nf8 (21...Re7 22.Ng5 Nf8 23.Rf3 Qd4 24.Rd3 Qd3 25.Bd3+–) 22.Nd6 Re7 (22...f5 23.ef6 Re7 24.fe7 Qe7+–) 23.Ne4 (23.Ne4 Nh7 24.Nfg5+–) 1–0. Epishin,Vladimir (2540) – Dijkhuis,Oele (2030), Bruges Masters, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 d5 4.Bb2 Bg7 5.d4 0-0 6.Nbd2 c6)

7.a4 Nbd7 8.Be2 Re8 9.0-0 Ne4 10.c4 f5 (10...Ndf6!?=) 11.cd5+= cd5 12.Qb3 e6 (12...Nd2 13.Nd2 Nf6 14.Rfc1+=) 13.g3 Ndf6 14.Rac1 Bd7 15.Rc2 Rc8 16.Rfc1 (16.Ne4 fe4 17.Ne5 Rc2 18.Qc2 Qe7+=) 16...Rc2 17.Rc2 Qb6 (17...Ng4 18.Ne4 fe4 19.Nh4+=) 18.a5 Qd6 19.Ba3 Bf8 20.Ne4 Ne4 21.Ne5 Qe7?? (better 21...Rc8+=) 22.Rc7+- Rd8 23.Rb7 (23.Nd7?! Rd7 24.Rc8 Rd8+=) 23...Qd6 (23...Ba4 24.Re7 (worse 24.Qa4 Qb7 25.Bf1 Qc7=+) 24...Bb3 25.Ra7+-) 24.Ra7 (24.Rd7?! Rd7 25.b5 Qc7+-) 24...Be8 25.Qc2 White prepares the advance a6 25...Qb8 26.Qc7 Qc7 27.Rc7 Rb8 (27...Nd6 28.Bb2+-) 28.a6 Nd6 (28...Bd6 29.Ra7 Nc3+-) 29.a7 Ra8 30.Nd7 (better 30.Ba6 Nb5 31.Bb5+-) 30...Bd7 31.Rd7 Nc8 32.Rc7 (better 32.b5 Ba3 33.Rd8 Bf8 34.Rc8 Ra7 35.b6 Ra1 36.Kg2+-) 32...Bd6?? (better 32...Na7 33.Ba6 Bd6+/-) 33.Rc6+- Kf7 (33...Ra7 34.Rc8 Kf7 35.Rc6 Bg3 36.hg3 Ra3 37.Ba6+-) 34.Ba6 Na7 (34...Ra7 35.Bc8 (35.Rc8?! Ra6 36.Rc3 Ra4=) 35...Ke7 36.Bc1 Bb4 37.Re6 Kf7 38.Rc6+-) 35.Rd6 Nc8 (35...Nb5 36.Rd7 Kf6 37.Bb5 Ra3 38.Rh7+-) 36.Rd7 Kf6 (36...Ke8 37.Bc8 Rc8 38.Rh7+-) 37.b5 Nb6 38.Be7 Kf7 39.Bc5 (better 39.Rc7 Ke8 40.Bb7 Ra1 41.Kg2+-) 39...Nd7=+ 40.Bb4? (40.Kg2 Ke8=+ (worse 40...Nc5 41.dc5 Ke7 42.b6+/-)) 40...Rb8?? (better 40...Nb8-+) 41.Bd6=+ Rb6?? (better 41...Rd8=+) 42.Bc7+/- Ke7 43.Bb6 Nb6 44.h4 Kd6 45.Kg2 Kc7 46.Kf3 Nd7 47.Kf4 Kb6?? (better 47...h6+-) 48.Kg5 1-0. Antonova,N (1910) - Agrest,I (2285), World Blitz Women, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.a4 Nbd7 8.Be2 Re8 9.c4 Qb6 10.Qb3 a5 11.b5 cb5 12.ab5 (12.cd5?! ba4 13.Ra4 Nd5=) 12...dc4 13.Nc4 Qd8 14.Ng5 Rf8 15.0-0 h6 16.Nf3 b6 17.Rfd1 Bb7 18.Nfe5 Bd5 (18...Nd5!?+/-) 19.Nc6+- Qe8 20.Ba3 Kh7 21.Ne7 Rh8? (21...Be4+-) 22.Nd5 Nd5 23.Nd6 Qe6 24.Bc4 a4 25.Qa2 (25.Bd5?! ab3 26.Be6 fe6+/-) 25...N7f6 26.e4! Bf8 (26...Ne4 27.Bd5 Double attack (27.Bd5 Deflection; 27.Bd5 Decoy)) 27.Bd5 (27.ed5?! Qd7 28.Nf7 Qf7+-) 27...Nd5 28.Qd5 (28.Qd5 Qd5 29.ed5 Bd6 30.Bd6+-) 1-0. Injac,Teodora (2255) - Bauyrzhan,Arnash (2010), World Youth Girl U18, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.a4 Ne4 8.Ne4+= de4 9.Nd2 f5 10.h4 h5 11.Bc4 Kh7 12.g4 hg4 13.h5 g5 14.h6 Bh8 15.Qb1 Nd7 16.Qa2 Nf6 17.Nb3 (17.Qb3!?=) 17...Nd5 18.Nc5 (18.Bd5!? cd5 19.Nd2-/+) 18...b6-/+ (18...Nb4?! 19.Qb3 Nd5 20.a5=+) 19.Nb3 Nb4 20.Qb1 a5 21.c3 Nd5 22.Qc2 Ba6 (22...Rf6 23.Ke2-+) 23.Ba6-/+ Ra6 24.Qe2 Ra7 25.Kd2 (25.0-0-0 Rd7-+) 25...e5 26.Kc2 Rd7 27.Rh5 ed4 28.ed4?? (28.Nd4 Bd4 29.cd4 Nb4 30.Kd1-+) 28...Nf4 29.Qe3 Nh5 30.Rh1 Nf4 31.c4 (31.Qg3 c5! 32.Qe3 Nd3 33.dc5 Nb2 34.Kb2 Rd3-+) 31...Nd3 32.Bc3 (32.Ba1-+) 32...Nf4 (better 32...c5!? 33.Bd2 cd4 34.Qg3-+) 33.Bb2 Qe7 34.Bc3 (34.c5 Rb8 35.Bc3 Qf7-+) 34...Qf7 35.Nd2 Rfd8 36.d5 cd5 (36...Bc3!? 37.Qc3 cd5 38.Nb1-+) 37.Bh8 Kh8 38.Qd4 (38.Qb6 dc4 39.Qb2 Kh7 40.Qg7 Qg7 41.hg7 Kg7-+) 38...Kh7 39.c5 bc5 40.Qe5 d4 41.Nb3 Qc4 42.Kb2 (42.Kb1 Qb3 43.Kc1 Qc4 44.Kd2 Qe2 45.Kc1 Nd3 46.Kb1 Qb2) 42...Qd5 (42...Nd3 43.Ka3 Qb4 44.Ka2 Qa4 45.Kb1 Qb3 46.Ka1 Qb2) 43.Ka3 Qe5 44.Rc1 c4 45.Rc4 Qd6 46.Rc5 d3 47.f3 (47.Ka2 d2 48.Kb1 d1Q 49.Kb2 Nd3 50.Ka2 Qc5 51.Nc5 Qc2 52.Ka3 Qb2) 47...Ne6 (47...d2 48.Kb2 d1Q 49.Rc1 Nd3 50.Ka2 Qh2 51.Nd2 Qhd2 52.Rc2 Q1c2 53.Ka1 Qdc3) 48.fg4 Nc5 49.gf5 (49.Ka2 Qh2 50.Nd2 Qd2 51.Ka3 Rd4 52.gf5 Ra4) 49...Nb3 50.Kb3 (50.Kb2 Qh2 51.Ka3 Nc1 52.f6 Qa2) 50...Rb8 51.Ka2 Qb4 52.Ka1 (52.f6 Qa4) 52…Qa4 0-1. Injac,Teodora (2285) - Arakhamia_Grant,K (2380), Women's Speed Chess Q5, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.a4 Re8 8.Be2 Bg4 9.0-0 Nbd7 10.c4 a5 11.b5 c5 12.h3 Bf3 13.Bf3 cd4 14.Bd4 e5 15.Bb2 e4 16.Be2 Nc5 17.Rc1 Rc8 18.Bd4 Ne6 19.Bf6 Bf6 20.cd5 Qd5 (20...Rc1 21.Qc1 Qd5 22.Rd1+/-) 21.Bc4 Qe5 22.Qg4 (better 22.f4!? Qf5 23.g4+/-) 22...Nc5= 23.Rc2 (23.Rfd1 Kg7 24.Bb3 Red8=) 23...Rcd8 24.Nb3 Na4 25.Na5 Nc5 (25...Qc7!? 26.Bb3 Nc3=+) 26.Rfc1 Nd3 27.Rb1 Re7 28.Nb3 Kg7 (28...Red7 29.Rd1=) 29.Qe2 (29.Nd4 Red7=) 29...Red7 (29...Qf5 30.Nd2=+) 30.Nd4= Qg5 31.Bd3 ed3 32.Qd3 Bd4 33.ed4 Rd4 34.Qf3 R8d7 35.b6 Qf6 36.Qf6 Kf6 37.Rc7 Ke7 38.Rbc1 R4d6 39.Rd7 Rd7 40.g4 Ke6 41.Kg2 (41.Re1 Kd5=) 41...Rd6=+ 42.Rb1 Kd5 43.Kg3 Kc5 44.Kf4 Rb6 45.Rc1 Kd6 46.Kg5 Rb3 47.Rh1 Rf3 48.Kh6 Rf2 49.h4 (49.Rb1 Kc6-/+) 49...Rf4-+ 50.Rg1? (better 50.g5-+) 50...f5 51.gf5 (51.Kh7 Rg4 52.Rb1 Kc6-+ (52...Rh4?! 53.Kg6 Kc6 54.Rc1 Kb5 55.Kf5-+)) 51...Rh4 52.Kg7 gf5 53.Rb1 Ke5 54.Rb5 Kf4 55.Rb7 h5 (better 55...Kg3!? 56.Rb3 Kg4 57.Rb1-+) 56.Kf6 Rg4 (better 56...Kg4!? 57.Rg7 Kf3 58.Kf5 Rf4 59.Ke5-+) 57.Rb4 Kg3 58.Rb3 Kf4 59.Rb4 Ke3 60.Rb3 Ke4 61.Rb4 Kf3 62.Rb1?? (better 62.Rb3 Kg2 63.Kf5-/+) 62...f4-+ 63.Rf1 (63.Rh1 Kg2 64.Rh5 f3-+) 63...Kg3 (63...Kg2 64.Ra1 f3 65.Kf5-+) 64.Ra1 (64.Rh1 f3 65.Rh5 f2-+) 64...f3 65.Rg1 Kf4 (65...Kh2 66.Rd1-+) 66.Rb1 (66.Rf1 Ke3-+) 66...f2 67.Rb4 Kf3 68.Rb3 Kg2 69.Rb1 Rg3 70.Rb2 Rf3 (better 70...h4 71.Ke5-+) 71.Kg5 Kg1 72.Rb5 (72.Rb1 f1Q 73.Rf1 Kf1 74.Kg6 h4 75.Kg7 h3 76.Kh7 h2 77.Kg6 h1Q 78.Kg5 Qg2 79.Kh5 Rh3) 72...f1Q 73.Kg6 Rf2 (73...Qb5 74.Kh6 Rf6 75.Kh7 Qg5 76.Kh8 Rh6) 74.Kh6 Rg2 75.Rb4 (75.Rf5 Qa6 76.Kh5 Qg6 77.Kh4 Qg4) 75...h4! 76.Rh4 (76.Rh4 Qf6 Mate attack) 76...Qc1 (76...Qf6 77.Kh5 Qg6) 77.Kh5 (77.Kh7 Qc7 78.Kh6 Qg7 79.Kh5 Qg6) 77…Qg5 0-1. BabaRamdev (2790) - ficorrales (2625), Rated Blitz game, lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.a4 Bf5 8.c4 Ne4 9.Qb3 Nd2 10.Nd2 Nd7 (better 10...Qd6!?=) 11.cd5+/- cd5 12.Qd5 e5 13.Be2 (13.Nc4!?+/-) 13...Qe7+= 14.0-0 (14.b5 Rfb8+/-) 14...Rfd8 (14...Qb4 15.Nc4 Rfc8 16.Qb5 (16.de5? Be6 17.Qd4 Bc4 18.Bc4 Rc4 19.Qd7 Qb2-+) 16...Qb5 17.ab5+=) 15.Qf3 (15.Rfd1 ed4 16.Bd4 Qb4+=) 15...ed4 16.ed4 (16.Qb7? d3 17.Bg7 de2-+) 16...Nf6 17.Bc4 Qb4 18.Bc3 Qe7 19.Rfe1 Qd7 20.h3 h5 (20...Rac8 21.Rac1=) 21.Re5+= White intends d5 21...Rac8 22.Bb2 Bh6 23.Bb5 Qc7 24.Rf5 (24.Rc1 Qd6 25.Rc8 Rc8 26.Nc4+= (worse 26.Rf5 gf5 27.Nc4 Qd5=+)) 24...gf5= 25.d5 (25.Rc1!? Qe7 26.Rc8 Rc8 27.Ba3=+) 25...Rd5 (worse 25...Bd2 26.Bf6 Qd6 27.Bd8 Rd8 28.Bc4+/-; 25...Nd5?! 26.Qh5 Qd6 27.Ra3=+) 26.Bf6 Rd2 27.Qf5 Qc5 28.Qc5 Rc5 29.Re1 Bg7 30.Bh4 (30.Be7 Re5 31.Kf1 Re1 32.Ke1 Ra2-+) 30...a6 31.Bf1 Rd4 32.Bg3 (32.Re8 Kh7 33.g3 Ra4-+) 32...h4 33.Bb8 Rc8 (33...Rc8 34.Bh2 Ra4-+) 0-1. Korobov,A (2675) - Gupta,Ab (2605), Khanty-Mansiysk RUS, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.a4 Bg4 8.Be2 Nbd7 9.0-0 a6 10.c4 e6 (10...Bf5 11.a5=) 11.h3+= Bf3 12.Bf3 (12.gf3?! dc4 13.Nc4 Nd5=) 12...b5 13.cb5 cb5 14.Be2 Qb6 15.Qc2 (15.Qb3 Rfc8+=) 15...Rfc8 16.Qd3 Bf8 17.Qb3 Ne8 18.e4 Bh6 19.Rfd1 Bd2 20.Rd2 de4 21.ab5 ab5 22.Ra8 Ra8 23.d5 e5 24.d6 Nd6 25.Qd5 Attacks the isolani on b5 25...Ra6 26.Rc2 e3 27.f4 (27.Bg4!? Nf6 28.Qe5+=) 27...ef4 28.Kh2 Qd8 (28...Kf8!?-/+) 29.Qd4+= f6 30.Qf4 Qe7 31.Bd4 Nf5 32.Bb5 Nd4 (better is 32...Rd6!? 33.Bb2 Ne5-/+) 33.Rc8= Kg7 34.Ba6 e2 35.Rc1 e1Q (worse is 35...Qb4 36.Be2 g5 37.Qc7 Ne2 38.Rd1+/-) 36.Re1 Qe1 37.Qd4 Qe5 38.Qe5 Ne5 39.b5 Nc4 40.Kg3 Kf7 41.Kf4 Ke6 42.h4 (42.Ke4 Kd6=) 42...Kd6 43.Bc8 ½–½. Bortnyk,Olexandr (2535) – Kovchan,A (2575), Nebesna sotnya Mem Rapid rapid, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 c6)

7.Bd3 a5 8.a3 Na6 9.0-0 Bg4 10.b5 (10.c3!?+=) 10...cb5=+ 11.Bb5 Qb6 12.a4 Nc7 13.c4 dc4 14.Nc4 Qe6 15.Nce5 Nb5 16.ab5 Rfc8 17.Ng4 Qg4 18.Qb3 Qf5 19.Ne5 Ne4 20.Nc4 Rc4 21.Qc4 Nd2 22.Qa4 Nf1 23.Rf1 Qd3 24.Ba3 e5 25.Bc5 ed4 26.ed4 Qc3 27.h3 Bf8 28.Bf8 Rf8 29.b6 Rd8 30.Rd1 Qb4 31.Qb4 ab4 32.Kf1 Rd6 33.Rd3 Kf8 34.Ke2 Ke7 35.Re3 Kd7 36.Kd3 Rb6 37.Kc4 b3 (37...b3 38.Rb3 Rb3 39.Kb3 Kd6-/+) 0-1. Bacrot,Alexandre (2275) - Gupta,Ab (2585), 33rd Cannes Open, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

7.Bd3 a5 8.ba5 Qa5 9.c4=.

7.Bd3 Qc7 8.0-0 Nbd7 (8...Qd6 9.a3+=) 9.c4+= Ne8 (9...dc4 10.Nc4 Nb6 11.Nce5+=) 10.cd5 cd5 11.Rc1 Qd6 12.a3 f5 (12...Nef6 13.Qc2+=) 13.Qe2+/- Nef6 14.Ne5 Ne4 15.f4 Ne5 16.de5 Qd8 (16...Qe6 17.Nf3+=) 17.Ne4 (17.Rfd1 Qb6+/-) 17...fe4+= 18.Bb1 Bd7 19.Rfd1 e6 ½–½. Mello,U F Schia – Valente,F Cesar, Championship Goiano Absoluto Etapa, 2014. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.d4 d5 6.Nbd2 c6)

7.Bd3 Nbd7 8.0-0 a5 9.ba5 Qa5 10.Nh4 (10.c4!?=) 10...Qb4+= 11.Nb3 e5 12.de5 Ne5 13.Be5 Qh4 14.Nd4 Ng4 (14...Ng4 15.Nf3 Qe7 16.Bg7 Kg7=). knightemplar_1 (1700) – lazker (1700), gameknot.com, 2012. (=1.d4 Nf6 2.b4 g6 3.Nf3 Bg7 4.Bb2 0-0 5.Nbd2 d5 6.e3 c6)

7.Be2 a5 8.b5 cb5 9.Bb5 a4 (9...Nc6 10.a4=+) 10.Ba3 Bd7 11.Rb1 Nc6 12.0-0 Na5 13.Ne5 Bb5 (13...Be6 A) 14.Ba4? Nc4 15.Ndc4 Ra4 16.Rb7 A1) worse 16...Rc4 17.Nc4 (worse 17.Be7 Qc8 18.Bf8 Bf8 19.Nc4 Qb7=) 17...dc4 18.Be7+/-; A2) 16...dc4 17.Be7 Qa8-+; B) 14.f4=) 14.Rb5+= Re8 (14...Qc7 15.Rc5 Nc6 16.c4+=) 15.Qe2 e6 16.c4 dc4 (16...Nd7 17.cd5 Ne5 18.de5 Be5 19.f4+/-) 17.Ndc4 Nc4 (17...Nd5 18.Qd2 Nc4 19.Nc4+/-) 18.Nc4 Nd5 (18...Rb8 19.Rfb1 Bf8 20.Bf8 Rf8 21.Nb6+/-) 19.Rb7+- Nc3? (19...Bf8 20.Qf3 Qf6 21.Qf6 Nf6 22.Bf8 Rf8 23.Nb6+-) 20.Qf3?? (better 20.Qd3 Nd5 21.Rfb1+-) 20...Qf6+/- 21.Qf6 Bf6 22.Nb6 Ra6 (22...Rad8 23.Bc5+/-) 23.Ra1+- e5 24.Nd7 (better 24.d5!?+/-) 24...ed4+= 25.Nf6 Rf6 26.ed4 Ne2 27.Kf1 Nd4 28.Bb2 Rf4 29.Rd1 Ne6 30.g3 Rc4 31.Rdd7 Rf8 32.Ba3 Nc5 33.Rdc7 Nb7 34.Rc4 Ra8 35.h4 Kg7 36.h5 (36.Kg2 Nd8+/-) 36...gh5+= 37.Kg2 (37.Rc6 Rd8+=) 37...Kg6 (37...Ra6 38.Be7=) 38.Kh3 (38.Rc6!? Kf5 39.Rh6+=) 38...Nd8= 39.Rb4 Ne6 40.Kh4 Ra5 41.Kh3 Ng5 42.Kg2 Ne6 43.Bc1 Rc5 44.Be3 Ra5 45.a3 Nc7?? (better 45...Ra6=) 46.Bb6+- Nd5 1-0. Popovic,Du (2485) - Robulj,N (2295), Moma Vucicevic Mem, 2019. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

7.Be2 a5 8.b5 c5 9.0-0 (9.dc5 Nbd7+=) 9...c4= 10.a4 Nbd7 11.Ba3 Re8 12.Nc4 (better 12.Re1!?=) 12...dc4-/+ 13.Bc4 e6 14.Qe2 b6 15.Rfd1 (15.e4 Bb7 16.Nd2 Rc8-/+) 15...Bb7-/+ 16.Nd2 Qc7 17.Bb3 Nd5 18.Ne4 Nc3 19.Nc3 Qc3 20.Rab1 Nf6 21.Bb2 Qc7 22.c4 h5 (22...Qe7 23.Rbc1-/+) 23.h3 (23.Rbc1 Rad8=+) 23...Ne4 24.Rbc1 Rac8 25.Rc2 (25.f3 Ng5 26.h4 Nh7=+) 25...Qe7 26.Rdc1 (26.f3 Ng3 27.Qe1 Qg5-/+) 26...Qg5 (26...Qb4 27.Ba2-+) 27.Qf1 h4 28.Ba3? (better 28.Qe2-/+) 28...Ng3!-+ 29.fg3 (29.f4 Nf1 30.fg5 Ne3-+) 29...Qe3 30.Kh1 Qb3 31.Rc3 Qa4 32.gh4? (better 32.Bd6 Bf8 33.Bf8 Rf8 34.gh4-+) 32...Bd4 33.Rd3 (33.Rg3 Be5 34.Re3 Red8 35.Re5 Qa3-+) 33...Rc4 34.Rcd1 e5 35.Bc1 (35.h5 Rc2 36.hg6 Bg2 37.Qg2 Rg2 38.Kg2 fg6-+) 35...Rc2 36.Rg3 (36.R1d2 Rec8 37.Rc2 Qc2-+) 36...Qa2 37.Bh6 (37.Kh2 Rec8 38.h5 Rf2-+) 37...Qe6 (better 37...Rf2 38.Qg1 Rg2 39.Qg2 Bg2 40.Rg2-+) 38.h5 (38.Kh2 Bf2 39.Rgd3-+) 38…Rg2 (38...Rg2 39.Qg2 Bg2 40.Kg2 Qd5 41.Kh2 Qb5-+) 0-1. BabaRamdev (2750) - elcaseno (2705), Rated Blitz game, lichess.org, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 Qb6 8.a3 a5 9.0-0 Re8 10.c4 ab4 11.c5 Qc7 12.ab4 Ra1 13.Qa1 b5 14.cb6 Qb6 15.Qa5 Qb7 16.Ra1 Bg4 17.h3 Bf3 18.Nf3 Nbd7 19.Ba6 Qb8 20.Qa4 Qb6 21.Rc1 Nb8 22.b5 Ne4 23.Ba3 Nd6 24.Bc5 cb5-/+ 25.Bb6 ba4 26.Bd3 Nd7 27.Ba5 Ra8 28.Bc3 a3–+ 29.Ra1 Nb6 30.Nd2 a2–+ 31.Nb3 Nbc4 32.Nc1= Nb5 33.Ra2 Rc8 34.Bb4 Ne3 35.fe3+= Rc1 36.Kh2 Nd6 37.Ra6 Bf8 38.Bd6 ed6 39.Kg3 Rc3 40.Be2 Re3 41.Kf2 Re4 42.Ra5 Rd4-/+ 43.Bf3 Be7 44.Bd5 Kg7 45.Ra7 0–1. Porubszki,Georg – Balenovic,Zvonimir, Biel, 2002.

7.Be2 Qd6 8.a3 Nbd7 (8...b5 9.a4=) 9.c4+= dc4 (9...a5 10.c5 Qe6 11.Qc2+=) 10.Nc4 Qc7 (10...Qe6 11.Qc2=) 11.0-0 (11.Rc1 Nb6+=) 11...Nb6 12.Qc2 (12.Nce5 Bf5+=) 12...Nc4 (12...Bf5 13.Qb3+=) 13.Bc4 e6 (13...Bf5 14.Qe2+=) 14.a4 (14.Rac1 Qd6+/-) 14...a6 (14...Nd5 15.Ba3+=) 15.Ne5 (15.e4 Qf4 16.Rfe1 Rd8+/-) 15...Nd7 16.Nd3 Nb6 17.Bb3 Nd5 18.e4 Nf6 19.f3 Bd7 20.Rfd1 Rfc8 21.Rac1 Qd8 22.Nc5 b5 23.a5+– Bf8 24.Qb1 Qc7 25.Qa1 Bg7? 26.d5+– Nh5 27.Nd7 Qd7 28.de6 Qe7 29.ef7 Kh8 30.Rc5 Bb2 31.Qb2 Qf6 32.Qf6 Nf6 33.e5 Nh5 34.e6 (34.e6 Kg7 35.e7+–) 1–0. Brukske – perskak, internet, 2007.

7.Be2 Nbd7 8.0-0 a5 (8...Nb6 9.c4=) 9.a3 (9.b5 cb5 10.Bb5 Nb6+=) 9...Qb6 (9...ab4 10.ab4 Ra1 11.Qa1=) 10.c4+= Qc7 (10...ab4 11.ab4 Ra1 12.Qa1 dc4 13.Nc4+=) 11.Ne5 (11.Qc2 Rd8+=) 11...Ne5 12.de5 Nd7 13.f4 f6 (13...ab4 14.ab4 Ra1 15.Qa1 dc4 16.Nc4+=) 14.cd5+/- fe5 (14...cd5 15.Nb3 Kh8 16.Qd5+/-) 15.dc6 ½–½. Aknouche,Ameur (2075) – Ezat,Mohamed (2450), Arab Clubs, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 c6)

7.Be2 Nbd7 8.0-0 Re8 9.a4 Ne4 10.Ne4 de4 11.Ng5 (11.Nd2 e5+=) 11...Nf6 (11...e5 12.Ne4 ed4 13.Bf3 de3 14.Bg7 ef2 15.Rf2 (worse 15.Nf2 Kg7 16.c3 Ne5-/+) 15...Kg7 16.Qd4 f6 17.Nd6=) 12.Bc4+= e6 13.f3 ef3 (13...Nd5!? 14.Nf7 Kf7 15.fe4 Kg8 16.ed5 ed5+=) 14.Qf3+/- (worse 14.Rf3 h6 15.Nh3 Qd6=) 14...h6 15.Ne4 Ne4 16.Qe4 f5 17.Qf3 (17.Qd3 Kh7+=) 17...Kh7+= 18.a5 Qe7 19.c3 e5 20.a6 e4 (20...b5!? 21.Ba2 e4=+) 21.ab7+= Bb7 (21...ef3?? 22.ba8Q (22.ba8R?! Qe3 23.Rf2 fg2=) 22...fg2 23.Rf2+- (23.Kg2?! Qe4 24.Rf3 f4 25.Qc8 Rc8 26.ef4 Qc2 27.Rf2 Qe4 28.Kg3 Rf8+=)) 22.Qe2 Bc8 23.b5 cb5 24.Bb5 Bd7 25.c4 Bb5 26.cb5 Reb8 27.Ra6 (27.Ba3 Qd7 28.Rfb1 Rb7=) 27...Qd7 (27...Qb4 28.Ba3 Qb5 29.Qb5 Rb5 30.Bc5-/+) 28.Rc6 (better 28.Ra5=) 28...a6?? (better 28...Qb7-/+) 29.Ra6+/- Ra6 30.ba6 Ra8 31.Ra1 Qc6 32.d5 Qd5 33.Bg7 Kg7 34.Qb2 Kg8 (34...Kf7 35.Qb6 Qd8 36.Qb7 Kf6 37.a7+/-) 35.a7 h5 36.h4 Kh7 37.Qf6 (better 37.Qb8!+-) 37...Qd7 (better 37...Qc5 38.Qd4 Qc7=) 38.Qb6 f4? (38...Qg7 39.Ra6 Qg8 40.g4 hg4 41.h5+-) 39.ef4 (39.Qb8 Qg7 40.Ra3 Qe7+/-) 39...Qg7? (39...Kh6+-) 40.Ra4 (40.Ra6!? e3 41.f5 gf5+-) 40...Re8?? (40...e3 41.Qe3 Qc7+-) 41.a8Q (41.a8Q Ra8 42.Ra8+-) 1-0. BabaRamdev - ficorrales (2835), Rated Bullet game, lichess.org, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 Bf5 8.0-0 Nbd7 9.c4 Ne4 10.Ne4 Be4 11.Ng5 Bf5 12.g4 e5 13.Nh7 Kh7 14.gf5 Qg5 15.Kh1 ed4 16.Bd4 Qf5 17.Bg4 Qe4 18.Bf3 Qe7 (18...Qh4 19.cd5 Be5 20.Be5 Ne5 21.dc6 bc6 22.a3=) 19.Bg7 Kg7 20.cd5 cd5 (20...Rad8 21.Qd4 Nf6 22.e4+=) 21.Qd5+/- Ne5 22.Qb7 Qf6 (22...Qb7!? 23.Bb7 Rab8+/-) 23.Bg2+- (23.Qa8 Nf3 24.Qd5 Rh8-+) 23...Rab8 24.Qa7 Rb4 25.h3 (25.f4 Nd3+-) 25...Rh8 26.f4 (26.Qc7 Rbh4 27.f4 Ng4-+) 26...Nc4 (26...Rh3 27.Bh3 Qh4 28.Qc7 Qh3 29.Kg1 Nf3 30.Rf3 Qg4 31.Kh1 Qf3 32.Kg1 Qe3 33.Kh1 Qe4 34.Kg1 Qd4 35.Kf1 Qa1 36.Kf2 Qa2 37.Ke3 Rb3 38.Ke4 Qe2 39.Kd5 Qb5 40.Kd6 Rd3 41.Ke7 Qb4 42.Qc5 Qc5 43.Ke8 Qe3) 27.Qd4 (27.Rac1!? Nd2 28.Rfd1+-) 27...Qd4+/- 28.ed4 Ne3 29.Rf3 Nc2 30.Rd1 Nd4 31.Rf2 Nf5 32.Rd3 (32.Rd7 Ne3 33.Rf3 Re8=) 32...Rb1 (better 32...Rh4!?=) 33.Kh2+/- Ra1 34.Bd5 Kf6 35.Bb3 Re1 36.Rd7 Re7 37.Re7 Ne7 38.a4 (38.Rd2 Rh4 39.Rd4 Nf5+/-) 38...Nc6 (38...Rb8 39.Bd1+=) 39.Bd5 Nd4 (39...Nb4!? 40.Bg2 Nd3+/-) 40.a5+- Rh5 41.f5! Nf5? (41...Nf5 42.a6 Passed pawn; 41...gf5 42.a6 Passed pawn; 41...Rf5 42.Rf5 Double attack) 42.a6 1-0. Tang,Andrew (2505) - Mareco,S (2630), Chess24 Banter Blitz Cup blitz, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

7.Be2 Bg4 8.h3 Bf3 9.Bf3 Nbd7 10.c4 Re8 (10...a5 11.b5=) 11.b5 (11.0-0 e5+=) 11...e5 (11...cb5 12.cd5 Nb6 13.e4=) 12.bc6 bc6 13.0-0 Rb8 (13...c5 14.de5 (14.cd5?! cd4 15.e4 Rc8=) 14...Ne5 15.Be5 Re5 16.cd5 Nd5 17.Rc1+/-) 14.Qc2 Qe7 (14...ed4 15.Bd4 c5 16.Bc3+=) 15.Rab1+= Qe6 16.Rfc1 e4 (16...Rec8 17.Qa4+=) 17.Be2+/- Nf8 (17...Bf8 18.Qa4+/-) 18.Ba3 g5 (18...N8d7 19.cd5 cd5 20.Qc7+/-) 19.cd5 cd5 20.Rb8 (20.Qc7 Rb1 21.Rb1 Ra8+–) 20...Rb8+/- 21.Qc7 Qb6 (21...Qe8 22.Qg3 Ne6 23.Nb3+/-) 22.Qc3 (better is 22.Qg3!?+–) 22...N8d7 (22...Ne6 23.Rb1 Qd8 24.Rb8 Qb8 25.Nb3+=) 23.Nb3+/- Bf8 24.Bc5 Qc7 (24...Nc5? 25.dc5 (25.Nc5?! Qb2 26.Bf1 Kg7=) 25...Qe6 26.Qa5+–) 25.Qd2 (25.Bf8 Qc3 26.Rc3 Kf8+/-) 25...Nc5 26.dc5 (worse is 26.Nc5 Qb6=) 26...Qe5 (26...h6 27.Nd4+/-) 27.Qd4 (27.Nd4 Ne8+/-) 27...Qf5 (27...Qd4 28.Nd4 Ne8 29.c6+=) 28.Na5 (28.c6!? Bd6 29.Qa7+/-) 28...Rc8 29.Nb7 h5 Black plans g4 30.c6 g4 31.h4 (31.hg4 Ng4 32.Bg4 hg4+/-) 31...Qe6 (31...Nd7 32.Qa7 Ne5 33.Bb5+=) 32.Qc3 (32.Rc2+/-) 32...d4? (better is 32...Nd7!?+=) 33.Qd4+– (33.ed4?! Nd5 34.Qc4 e3+=) 33...Rc6 (33...Kg7 34.Bb5+–) 34.Bc4 g3 35.fg3 Ng4 (35...Rc4 36.Qc4 (36.Rc4?! Ng4+=) 36...Qe5 37.Nd8+–) 36.Nd8 Bh6? (36...Rc4 37.Qc4 Qc4 38.Rc4 Bd6 39.Re4 Bg3+–) 37.Ne6 (37.Nc6 Qe8 38.Rc3 Be3 39.Re3 Ne3+–) 37...Be3 38.Qe3! Ne3 (38...Ne3 39.Nc5 Combination) 39.Nc5! Kg7 (39...Rc5 40.Bf7 Double attack) 40.Bb5 Rb6 41.a4 f5 42.Kf2 (42.Kf2 Nd5 43.Nd7+–) 1–0. Bukavshin,Ivan (2600) – Barbosa,Evandro Amorim (2445), Katowice Poland, World University Ch (m), 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 c6)

6.e3 Nc6

7.a3 e5 8.b5 e4 9.bc6 ef3 10.Nf3 bc6 11.Ne5 Ne4 12.Bd3 (12.Nc6 Qf6 13.f3 Qh4 (13...Qc6?! 14.fe4 Re8 15.Bd3=+) 14.g3 Ng3 15.hg3 Qh1 16.Ne7 Kh8 17.Nd5 Rb8-+) 12...Qg5 13.0-0 Bh3 (13...Be5 14.de5 Bh3 15.Qf3+=) 14.Qf3 Be5 15.Qh3 (15.Be4? Bg4 (worse 15...de4 16.Qh3 Bf6 17.Qd7+=) 16.de5 Bf3 17.Bf3 Rfd8-+) 15...Bd6 16.Bc1 (16.Be4 de4 17.c4 Rab8+=) 16...Qe7 (16...c5 17.c4+=) 17.f3 Ng5 18.Qh6 f5 19.c4 (19.e4 Nf7 20.Qh3 fe4 21.fe4 de4=) 19...Nf7= 20.Qh3 Ng5 21.Qh6 Nf7 22.Qh3 Ng5 23.Qh6 ½-½. Injac,Teodora (2285) - Stanford,Sheila B (2150), Online Olym Div2 D, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.b5= Na5= 8.Bd3 c6 9.a4 Ne8 10.0-0 Nd6 11.Qe2 c5 12.c3 c4.

7.b5 Na5 8.Bd3 Qd6=.

7.b5 Na5 8.Bd3 Nd7 9.c4 Nc5 10.Be2 Bf5 (10...Nc4 11.Nc4 dc4 12.Bc4+=) 11.Qc1 (11.cd5!? Nd3 12.Bd3 Bd3 13.Bc3+=) 11...Nd3= 12.Bd3 Bd3 13.Qc3 Nc4 14.Qd3 Nb2 15.Qc2 Nc4 16.Nc4 dc4 17.Qc4 c5 18.bc6 (18.Qc5 Qa5 19.Kf1 e6+=) 18...Qa5= 19.Ke2 Rac8 20.Rhc1 Rc6 21.Qb3 Rb6 22.Qc4 (22.Qc3 Qa6 23.Qc4 Qa3=) 22...Rb4 23.Qd3 e5 24.Ne5 Be5 25.de5 Rd8 (25...Qe5 26.Rab1 Rb1 27.Rb1= (worse 27.Qb1 Qh5 28.f3 Qh2-/+)) 26.Rc5= Rb2 27.Kf3 Rd3 28.Ra5 Rdd2 29.Rf1 Ra2 30.Ra2 Ra2 31.Rc1 b5 32.Rc8 Kg7 33.Rc7 Kf8 34.Rb7 a6 35.h4 h6 36.e4 Ke8 37.Ke3 Ra4 38.g4 g5 (38...Ra3 39.Kf4=) 39.h5 b4 (39...Kf8 40.Rb6 Kg7 41.e6 fe6 42.Re6=) 40.Kd4 (better 40.Rb6!?+/-) 40...a5= 41.Kd5 Ra2 42.e6 fe6 43.Ke6 Kd8 44.e5 Rf2 45.Ra7 Rf4 46.Ra5 Rg4 47.Kd6 Rd4 48.Kc5 Rd7 (48...Rd1 49.Kb4 Rh1 50.Kc5=) 49.Kb4 g4 50.Ra8 Ke7 51.Rg8 Rd5 52.Rg4 Re5 53.Rg7? (better 53.Rh4=) 53...Kf8-+ 54.Ra7 Rh5 55.Kc4 Re5 56.Kd4 Re6 57.Kd5 Rg6 (57...Re1 58.Rh7 Rh1 59.Ke4-/+) 58.Ke4 (58.Ra8 Ke7=+) 58...Kg8 (58...Rg5!?-/+) 59.Kf5= Rg5 60.Kf6 Kh8 61.Ra8 Rg8 62.Rg8 Kg8 63.Kg6 Kf8 64.Kh6 ½-½. Gharibyan,Mamikon (2460) - Paravyan,D (2625), Stepan Avagyan Mem, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3)

7.b5 Na5 8.Be2 c6 9.a4 cb5 (9...Bf5 10.0-0=) 10.ab5 b6 (10...a6 11.ba6 b6 12.a7=) 11.h3 (11.0-0 a6+=) 11...Bd7 (11...a6 12.Ne5=) 12.Ne5+= Nb7 (12...Qe8 13.Nd7 Qd7 14.Ba3+=) 13.0-0 (13.c4!?+=) 13...Nd6= 14.Nd7 Qd7 15.Rc1 (15.Ba3!?=) 15...Nb5+= 16.Bf3 (16.c4 Nc7+=) 16...Rac8 (16...a5 17.c4 Nc7 18.cd5 Ncd5 19.Nc4+=) 17.c3 (17.c4 Nc7+=) 17...Nd6-/+ 18.Qe2 (18.Ba3 b5-/+) 18...Qb5 (18...Qe6 19.Ra1 a5 20.Ra4-/+) 19.Ba3 (19.Qb5 Nb5 20.c4+=) 19...Qd7 (19...Qe2 20.Be2 Rc7 21.Bd6 ed6 22.Ra1-/+) 20.Ra1 (better is 20.Bb2!?=) 20...Rc7 21.Bd6 Qd6 22.Ra2 Rfc8 23.Nb1 b5 24.Qd2? b4 25.cb4= Qb4?? 26.Qb4+– Rd7 27.Nd2 e6 28.Raa1 Ra8 29.Qb5 Rdd8 30.Qe2 Nd7 31.Rfd1 Nb6 32.g3 a5 33.Rdb1 Nd7 34.Ra2 Ra7 35.Rba1 Rda8 36.Qb5 Rb8 37.Qc6 Rb6 38.Qc8 Bf8 39.Ra5 Rab7 40.Qc1 Kg7 41.Ra8 Bb4 42.Kg2 Bd6 43.Rb1 Rc7 44.Qf1 Rbc6 45.e4 Nf6 46.e5 (46.e5 Be7 47.ef6 Bf6 48.Qb5+–) 1–0. Volkov,Mikhail – Voronin,Daniil, RUS–ch U10 sf, 2000.

7.b5= Nb4?? 8.a3 Qd6 (8...Nc2 9.Qc2 Bf5 10.Qa4+–) 9.ab4 Qb4 10.Ba3 Qb5 (10...Qc3+–) 11.Bb5 (11.Bb5 c6 12.Bd3+–) 1–0. Marere – AnthonySs, internet, 2011.

7.b5 Nb8 8.c4=.

6.e3 Qd6

7.a3 a5 8.b5 c6 9.bc6 Qc6 10.c4 Qb6 11.Qb3 Qb3 12.Nb3 Bf5 13.Nh4 Bc2 (13...Bg4 14.cd5 a4 15.h3+=) 14.Nd2 (14.Nc5 Nbd7+=) 14...Nbd7 15.Rc1 Ba4 16.Nhf3 Rfc8 17.Bd3 dc4 18.Nc4 b5 19.Nce5 Rc1 20.Bc1 b4 21.Bb2 Ne5 22.Ne5 Nd7 23.Nd7 Bd7 24.Kd2 b3 25.Rc1 Ra7 26.f4 a4 27.e4 f5 28.e5 e6 29.Bc4 Kf8 30.d5 ed5 31.Bd5 Ra5 32.Bc4 Rc5 33.Bd4 Rc6 34.Bd5 Rc1 35.Kc1 Bb5 36.Kb2 Ke8 37.Bg8 h6 38.h4 Bd7 39.g3 Kf8 40.Bc4 h5 41.Bd5 Bb5 42.Kc3 Ke7 43.Kb4 Be8 44.Bc5 Kd8= 45.Kc3 Bb5 46.Kb2 Ke8 47.Be3 Bf8 48.Bb6 Bd7 49.Bc4 Bc6 50.Bd4 Be7 51.Be3 Bd8 52.Bc5 Bd7 53.Bd5 Bb5 54.Be6 Be7 55.Be3 Bd3 56.Bd4 Be2 57.Bd5 Bb5 58.Bg8 Kf8 59.Be6 Bd8 60.Bd5 Ba5 61.Bc5 Kg7 62.Bf2 Kh6 63.Bf3 Kh7 64.Bb7 Kg8 65.Bf3 Kf7 66.Bd5 Ke8 67.Bg8 Kf8 68.Be6 Bc6 69.Bc4 Ke8 70.Bd3 ½–½. wiking (2295) – bhblakie (2155), internet, 2010.

7.a3 a5 8.b5 c6 9.bc6 Nc6 10.c4 Bg4 11.cd5 Nd5 12.Nc4 Qe6 13.Be2 Rfc8 14.Rc1 b5 15.Ncd2 Na7 16.0-0 Rc1 17.Qc1 Rc8 18.Qd1 Bf5 19.Qb3?? (better is 19.Ng5 Qc6 20.Bf3=) 19...Bc2–+ 20.Qa2 Nc3 21.Qe6 Ne2 (21...fe6 22.Bc3 Rc3 23.Ra1+=) 22.Kh1 fe6 23.Ng5 Bf5 24.Nb3 Rc2 25.Ba1 Bf6 26.Nf3 b4 27.ab4 ab4 28.Ne1 Ra2 29.Nf3 Nb5 30.h3 Bc2 31.Nc5 b3 0–1. Hemmer,Christian (1710) – Marculescu,Gheorghe (1770), RB–2009–0-00045, 2009.

7.a3 a5 8.b5 Bg4 9.Be2 Ne4 10.c4 Nd2 11.Nd2 Be2 12.Qe2 c5 13.dc5 Qc5 14.Bg7 Kg7 15.cd5 Qd5 16.0-0 Nd7 17.e4 Qe6 18.Qc4 Qb6 19.Nf3 Rac8 20.Qe2 a4 (20...Rc5 21.Rfd1 Nf6 22.a4=) 21.Rac1+= Nc5 22.Rfd1 Nb3 23.Rc8 Rc8 24.h4 0–1. Fournier,Sylvain (1940) – Gladyszev,Oleg (2445), Fouesnant op, 2008. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d5 6.Nbd2)

7.a3 b6 8.c4 dc4 9.Bc4 Bb7 10.Qc2 e6 11.e4 Qe7 12.0-0 Nbd7 13.b5 c5 14.bc6 Bc6 15.Ba6 Nb8 16.Bd3 Bb7 17.Rfc1 Nc6 18.Qa4 Rfc8 19.Nc4 Qd7 20.Qb3 Nh5 d4 draws heavy fire 21.Bf1 Rd8 (21...Nd4? 22.Bd4 Be4 23.Bg7 Kg7 24.Nce5+-; 21...Bd4? 22.Rd1 Bf2 23.Kf2+-) 22.Rd1 White prepares d5 22...Rac8 23.d5 ed5 24.ed5 Ne7 25.Bg7 Ng7 26.Nfe5 Qf5 27.d6 Nc6 28.Qe3 (28.d7 Rc7 29.Nd6 Qe5 30.Qf7 Kh8 31.Ne8+-) 28...Ne5+= 29.Ne5 Rc5 30.f4 Ne6 31.g3 Rc2 32.Qd3 ½-½. Pacl,V (1995) - Vachal,Jos1 (1805), 10th Pilsen Open, 2018. (=1.Nf3 Nf6 2.d4 d5 3.e3 g6 4.Nbd2 Bg7 5.b4 0-0 6.Bb2)

7.a3 Bg4 8.c4 a5 9.c5 Qd8 (9...Qe6 10.h3 Bf3 11.Nf3 ab4 12.ab4=) 10.Be2= c6 (10...Ne4 11.h3 Bf5 12.0-0=) 11.0-0 Nbd7 12.Nb3 (12.h3!? Be6 13.Ng5+/-) 12...ab4= 13.ab4 Ne8 (13...Ne4 14.Ra8 Qa8 15.Nbd2=) 14.b5 Bf3 (14...Nef6 15.h3 Bf5 16.Nbd2+=) 15.Bf3 e5 (15...Ra1 16.Ba1 e5 17.Re1+=) 16.b6 (16.Qc2 ed4 17.Nd4 Ne5+/-) 16...ed4 17.ed4 Bh8 (17...Nef6!?+/-) 18.Qd2 Ng7 19.Ra8 (19.Ra7 Rb8+/-) 19...Qa8+/- 20.Ra1 Qb8 21.Ra7 Ne6 22.Na5 Nd8 23.g3 Re8 24.Bc1 Nf8 25.Kg2 Nfe6 26.Nb3 Qc8 27.Qd3 f5 28.h4 Bf6 29.h5 Re7 30.Be3 Kf7 31.Qd1 Kg7 32.Qa1 Bg5 33.Qc1 Nf7 34.hg6 hg6 35.Na5 Be3 36.Qe3 f4 37.gf4?? Neg5–+ 38.fg5 Re3 39.fe3 Ng5 40.Rb7 Kh6 0–1. Chatalbashev,B (2575) – Fier,Alexander Hilario T (2595), Teplice CZE, Open, 2012.

7.a3 Bg4 8.Be2 Nbd7 9.c4 c6 10.Qc2 Bf5 11.Bd3 Bd3 12.Qd3 Ng4 13.h3 Nh6 14.cd5 cd5 15.0-0 f5 16.Rac1 Rfc8 17.Qb5 Nb6 18.Ne5 (18.Rc5 Nf7+=) 18...Nf7 19.f4 Qe6 20.Qe2 Nd6 21.Nb3 Rc1 ½-½. Langheinrich,F (2375) - Berghof,A (2155), 2nd Bamberg Open, 2019. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d5 6.Nbd2)

7.b5 c5 8.dc5 Qc5 9.c4 a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 Nbd7 13.cd5 Qd5 14.Bc4 Qh5 15.Be2 Nb6 16.Bd4 Nbd5 17.0-0 Rd8 18.Rc1 Be6 19.Qa7 b6 (19...Bc8 20.Qb8 Qg4 21.Rc4+–) 20.Qa1 (20.e4 Nf4 21.Bf1 Qg4 22.Qb6 Re8+/-) 20...Qh6 21.Nc4 Ne4 22.Nfe5 Qh4 23.g3 Qh6 24.h4 (24.Nc6 Re8+/-) 24...Bf6 (24...Nc5!? 25.Qa3 Rc8+/-) 25.Bf3 Be5 26.Be4 Bc7 (26...Bf6 27.Rd1 Re8 28.Be5 Be5 29.Qe5+/- (29.Ne5?! Ne3 30.Re1 Nf5=)) 27.Qa7 Qh5?? (27...Qf8 28.Nb6 Bb6 29.Bb6+/-) 28.Nb6 (better is 28.Bd5 Qd5 29.Qc7+–) 28...Bb8 (28...Bb6!? 29.Bb6 Nb6 30.Qb6 Rd6+–) 29.Qb7+– Bg3?? (better is 29...Nb6 30.Qb6 Re8+–) 30.fg3 Qg4 (30...Nb6 31.Qb6 Re8+–) 31.Nd5 Bd5 (31...Qg3 32.Bg2 Bd5 33.Qd5+–) 32.Bd5 (32.Qc7 Rf8 33.Bd5 e6+–) 32...Qg3 33.Bg2 (33.Bg2 Qh4 34.Qd5+–) 1–0. Miltner,Arndt (2380) – Milov,Vadim (2595), Biel MTO op, 2003. (=1.d4 Nf6 2.Nf3 d5 3.Nbd2 g6 4.e3 Bg7 5.b4 0-0 6.Bb2)

6.e3 Nbd7

7.Rc1 a5 8.b5 c5 9.c4 b6 10.cd5 Nd5 11.Nc4 Bb7 12.e4 Nf4 13.g3 Ne6 (worse is 13...Be4 14.gf4 Bd4 15.Bd4 cd4 16.Ncd2+/-) 14.d5 Bb2 15.Nb2 Nc7 16.Na4 f5 (16...e6!? 17.de6 Ne6=) 17.Bc4+= Kh8 18.e5 Ne8 19.0-0 Qc7 20.Re1 Rd8 (better is 20...f4!?+/-) 21.Ng5+– Ng7 (21...Ne5?? 22.Ne6 Qb8 23.Nd8 (worse is 23.Nf8 Ng7+–) 23...Qd8 24.Re5+–) 22.d6 ed6 23.ed6 Qb8 24.Nh7?? (better is 24.Re7 f4 25.Qd2+–) 24...Rf7?? (better is 24...Kh7 25.Rc2 Nf6–+) 25.Bf7+– Nf6 26.Qe2 Ne4 27.Rcd1 0–1. Fulger,Ionut (1940) – Andreescu,Darie_Ioan (1945), Olanesti ROM, Team Ch DivB, 2013. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Nbd7)

7.c4 a5 8.b5 c5 9.a4 b6 10.Be2 Bb7 11.0-0 Rc8 12.Rc1 Re8 13.Ne5 e6 14.f4 Ne5 15.de5 Ne4 16.Ne4 ½–½. Deepan Chakkravarthy,J (2495) – Firat,Burak (2395), Moscow RUS, 2012.

7.c4 b6 8.Be2 Bb7 9.0-0 c5 10.bc5 bc5 11.Rb1 Rb8 12.Qa4 a6 13.cd5 Nd5 (13...Bd5 14.Bd3+= (worse is 14.Ba6 Ra8-/+)) 14.Rfc1 (worse is 14.Ba6 Ra8 15.Qb3 Ba6 16.Qd5 e6–+) 14...N5b6 (14...cd4 15.Bd4 N7b6 16.Qa5 Bd4 17.Nd4+/-) 15.Qa3 cd4 16.Nd4 e5 (16...Be5!?+/-) 17.Nc6 Bc6 18.Rc6 Nd5 19.Rd6 (19.Qa6 Nb4 20.Qa4 Nc6 21.Qc6 Qc8-/+; 19.Ba6?! Nb4 20.Rc8 Rc8 21.Bc8 Qc8 22.Qb4 Qa8+=; 19.Ra6?! Bf6+/-) 19...N5b6 (better is 19...N5f6+–) 20.Rc6 (20.Qa5 Nc8 21.Qd8 Rd8+=) 20...Re8 (20...Nd5 21.Ra6 Re8+/-) 21.Ne4 Qh4 (21...Nd5 22.Bf3+/- (worse is 22.Qa6 Nb4 23.Qa4 Nc6 24.Qc6 Qe7+=; 22.Ra6?! N7f6 23.Nf6 Bf6+/-; 22.Ba6?! N7f6 23.Nf6 Bf6+=)) 22.Qd3 (22.Bf3 Rec8 23.Rc8 Rc8 24.Qa6 Ra8+–) 22...Nf8 (22...Rec8!? 23.g3 Qd8 24.Rc8 Qc8+/-) 23.Nd6 Re6 24.Qa6 (24.Ba3 Nfd7+–) 24...Nbd7 (24...Na4 25.Bb5 Nb2 26.Rb2+/-) 25.Bc4 Rf6 26.g3 Qg4 27.Bb3?? (better is 27.Bb5+–) 27...Qf3= 28.Rf1?? (better is 28.Rc2 Rb6 29.Nf7 Ra6 30.Ne5 Ne6 31.Nf3 Rf3 32.Ba3+=) 28...Rb3!–+ 29.ab3 Nb8 (29...Nb8 30.Qd3 Nc6–+) 0–1. Deac,Bogdan_Daniel (1935) – Kevlishvili,Robby (1895), European Youth Chess Championship U12, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Nbd7)

7.Bd3 a5 8.ba5 Ra5 9.0-0=+.

7.Bd3 b6 8.0-0= c5 9.bc5 bc5 10.c4 Rb8 11.Bc3 (11.Rb1 Qc7=) 11...Ba6 12.Qa4 Qc8 13.Ba5 cd4 14.ed4 (14.Nd4? Nc5 15.Qa3 Nd3 16.Qd3 e5–+) 14...dc4 15.Rac1? (15.Nc4 Bb5 16.Qb3 Nd5=+) 15...Bb5 (better 15...Nc5!? 16.dc5 cd3–+) 16.Qa3=+ Qa6 17.Bc4 (17.Nc4? Nd5 18.Rfe1 Rfc8-/+) 17...Bc4 18.Nc4 Nd5 19.Ne3 N7b6 (19...N7f6 20.Ne5=+) 20.Bb4= Nb4 21.Qb4 Nd5 22.Qc4 Qc4 23.Rc4 (worse 23.Nc4 Rfc8 24.Nce5 Nf4 25.Rc8 Rc8-/+) 23...Nf4 (23...Rfd8 24.g3=) 24.Rd1 (24.g3 Ne2 25.Kg2 Rbc8=) 24...Rfc8 (24...Rb2 25.a3=) 25.Rc8= Rc8 26.g3 Ne2 The isolani on d4 becomes a target 27.Kf1 Nc3 28.Rc1 Rc7 29.Nd1 Nd5 30.Rc7 Nc7 31.Ke2 Kf8 32.Kd3 Ke8 33.Kc4 e6 34.Nc3 a6 (34...f6 35.Nd2=) 35.Kc5+= Bf8 (35...f5 36.Kc6 Kd8 37.Ne5+=) 36.Kc6 (better 36.Kb6!? Bd6 37.Ne4 Nd5 38.Ka6+–) 36...Bb4= 37.Ne4 Nd5 38.Nc5 a5 39.Ng5 Ke7 (39...Bc3=) 40.Nb3 (40.Nge4!?=) 40...a4-/+ 41.Nc5 Nc3 42.Nf3 a3 43.Nd3?? (better 43.Ne1 Na2 44.Nc2=+) 43...Na2–+ 44.Nfe5 Bc3 (better 44...Bd6 45.Nc4 Nb4 46.Nb4 Bb4–+) 45.Kb5 f6 46.Nc4?? (better 46.Nc6 Kd6 47.Ka4–+) 46...Nb4! 47.Na3 (47.Nb4 Bb4 Combination) 47...Nd3 48.Kc4 (48.Nb1 Bb2 49.Nd2 Nf2–+) 48...Bb2 49.Nb5 (49.Nc2 Nf2 50.Kb3 Bc1–+) 49...Nf2 50.d5 (50.Kb3 Bc1–+) 50...ed5 51.Kd5 Ng4 52.h3 Nf2 53.h4 (53.Na7 Nh3 54.Nc8 Kd8–+) 53...Be5 54.Na7 (54.Nd4 Bg3 55.h5 f5–+) 54...Bg3 55.h5 (55.Nc8 Kd8 56.Nd6–+) 55...gh5 56.Nc6 Kf7 57.Nd4 Kg6 0–1. Banoci,J (1815) – Pcola,J (2080), Tatry Open, 2017. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d5 6.e3 Nbd7)

7.Bd3 b6 8.b5 Bb7 9.c4 dc4 10.Nc4 c6 11.bc6 Bc6 12.0-0 Rc8 13.Rc1 Rc7 14.Ba3 Re8 (14...Bd5!?+=) 15.Nce5+/- Ne5 16.Ne5 (worse 16.de5 Bf3 17.gf3 Rd7=) 16...Ba8 17.Qa4 Nd5 18.Bb5 Rf8 19.Nc6 (19.Qb3 Be5 20.de5 Rc1 21.Rc1 Nc7+/-) 19...Qc8 20.Na7 Qg4 21.Nc6 Rfc8 22.Rc2 Bb7 23.Rfc1 h5 24.h3 Qg5 25.Qb3 h4 26.Qd3 Kh7 27.Qb3 Kg8 28.Ba4 Kh7 29.Kh1 Bf6 30.Qb5 (30.e4 Nf4 31.g4 Ne6=) 30...Kg7 (30...Qf5 31.Kg1 Bc6 32.Rc6 Rc6 33.Rc6 Rc6 34.Qc6 Qb1 35.Bc1=) 31.e4+= Nf4 32.Qg5 Bg5 33.d5 Nd5? (better 33...Nd3!? 34.Rd1 Ra8 35.Rd3 Ra4+=) 34.ed5+- Bc1 35.Bc1 e6 36.Bf4 Rd7 37.d6 f6?? (better 37...g5 38.Nd4 Rc2 39.Nc2 Rd8 40.Bg5 Rd6 41.Bh4 Bc6+-) 38.Nb4 Rc2 39.Nc2 (39.Bd7?! Rf2 40.Be3 Rf1 (40...Bg2?? 41.Kg1 Rf1 42.Kg2+-) 41.Kh2 Rd1 42.Be6 Rd6=) 39...Rd8 40.d7 (40.d7 Kf7 41.Bc7+-) 1-0. Tarlabasi,Emirhan (2260) - Kizilkus,Akin (2100), Turkish Cup, 2019. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3)

7.Be2 a5 8.b5 c5 9.c4 b6 10.0-0 Bb7 11.Rc1 e6 12.Qc2 Rc8 13.Qb1 Qe7 14.Rfe1 Rfd8 15.h3 Ba8 16.Bd3 cd4 17.ed4 (17.Bd4? e5–+) 17...dc4 18.Bc4 Bh6 19.Rc2 Nd5 20.Bf1 Rc2 21.Qc2 Bf4 22.a3 Bd6 23.Ne4 (better is 23.Nc4!?+=) 23...Ba3-/+ 24.Ba3 Qa3 25.Qd2 Qf8 26.Qg5 Rc8 27.Qg3 Rc2 28.Neg5 (28.Bd3 Rc7-/+) 28...Rc3 29.Qh4 h6 30.Ne4 Rc8 31.Qg3 N5f6 32.Nd6 Rc3 33.Nc4 (33.Re3 Re3 34.fe3–+) 33...Bf3 34.gf3 Nd5 35.Nd2 N7f6 36.Ne4 (36.Nc4–+) 36...Ne4 37.Re4 Nf6 (better is 37...a4!? 38.Re1–+) 38.Rh4 Rc8 39.Qe5 (39.d5 Nd5 (39...ed5?! 40.Qe5 Kg7 41.Rf4–+) 40.Rc4 Rc4 41.Bc4 Qd8–+) 39...Qg7 (39...g5!? 40.Rg4 Ng4 41.fg4–+) 40.Qd6 g5 41.Re4 (41.Rg4 Ng4 42.fg4 Qf6 43.Qb6 a4–+) 41...Ne4 42.fe4 Qf6 43.Qb6 Qd8 (43...a4 44.e5 Qf3 45.d5 Qd5 46.Qa7–+) 44.Qa7 (44.Qa6 Rc2 45.Qa7 Kg7–+) 44...Qc7 (better is 44...Ra8 45.Qc5 a4–+) 45.Qa6 Rb8 46.Qc6 White intends d5 (46.d5 ed5 47.ed5 Qb6–+) 46...Qc6 47.bc6 Rb6?? (better is 47...a4 48.d5 Rc8–+) 48.d5+– ed5 49.ed5 1–0. Kanbach,Mike (1870) – Schnegelsberg,K (2005), 7th Vellmar Open, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 Nbd7)

7.Be2 a5 8.b5 c5 9.bc6 bc6 10.c4 c5 11.0-0 Ba6 12.Rc1 Qb6 13.Ba1 Rfc8 14.cd5 Nd5 15.Ba6 Qa6 16.dc5 Ba1 17.Ra1 (17.Ne4 e6 18.Ra1 Nc5=) 17...Nc5 (17...Rc5? 18.Nb3 Qd6 19.Nc5 Nc5 20.Rc1+–) 18.Ne4 (18.Ne5!?+=) 18...Ne3-/+ 19.fe3 Ne4 20.Ne5 Qb6 21.Qf3 f5 22.g4 (22.Qf4 Rc3 23.Rae1 Qb2–+) 22...Qe6 23.Qf4 Rc5 24.Nf3 Qd6 25.gf5 Qf4 26.ef4 gf5 27.Rad1 (27.Rac1 Rac8 28.Rc5 Rc5-/+) 27...Kf7 28.Nd4?? (better is 28.Ne5 Ke6 29.Nf3–+) 28...Rg8 29.Kh1 Rd5 0–1. Denoth,Mario (2150) – Rueetschi,Urs (2265), SUI–chT Switzerland, 2003. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Nbd7)

7.Be2 b6 8.b5 Bb7 9.a4 Ne4 10.a5 Rb8 11.0-0+= Nd6 12.Ne5 Ne5 13.de5 Qd7 14.Rb1 Nf5 (worse is 14...Nb5 15.e6 Qe6 16.Bg7 Kg7 17.Bb5 ba5 18.Nb3+/-) 15.Nb3 Rbd8 16.Nd4 (16.Bd3 Qe6+=) 16...Be5 17.Nc6 Bc6 18.bc6 (better is 18.Be5!? Ba8 19.Qd3=) 18...Qd6 19.Be5 Qe5 20.Qd3 Qd6 (20...Qf6 21.Bg4-/+) 21.g4 Ng7 22.f4 Ne6 23.h4 Nc5 24.Qd1 Qc6 25.Qe1 Qe6 26.Qg3 Ne4 27.Qe1 d4 28.ed4 Rd4 29.f5 Qd6 30.Bd3 Nc5 31.Be2 Rd2 32.fg6 hg6 33.h5 Qd4 34.Kh1 Ne4 35.hg6 Re2! (35...Re2 36.Qh4 fg6 37.Rf8 Kf8 38.Rf1 Kg8 39.ab6 Nf2 40.Qf2 Rf2 41.Rf2 Qf2 42.ba7 Qa7–+) 0–1. Cox,T – Harman,R (2035), Ron Banwell Masters, London ENG, 2001.

7.Be2 b6 8.b5 Bb7 9.0-0 c5 10.bc6 Bc6 11.c4 Qc7 12.Rc1 Qb7 13.Qb3 dc4 14.Nc4 (worse is 14.Rc4 Bd5 15.a4 a6-/+) 14...a5 15.a4 b5 16.ab5 Qb5 17.Na5 Qe2? 18.Nc6+– Rfb8 19.Nb8 Rb8 20.Qb8! Nb8 21.Rc8 Bf8 22.Rb8 Nd7 23.Rb7 f6?? 24.Ba1 (24.Rd7?! Qb2 25.h3 e6+–) 1–0. Cherednichenko,E (2145) – Chlost,M (2150), Vasylyshyn Memorial WGM, 2010.

7.Be2 b6 8.b5 Bb7 9.0-0 Ne4 10.c4 e6 11.cd5 ed5 12.Rc1 Re8 13.Qc2 Rc8 14.Qa4 Ra8 15.Qc2 Rc8 16.Qa4 Ra8 17.Qc2 (17.Rfd1+/-) 17...Rb8?? (better is 17...Rc8=) 18.Qc7+– Qe7 19.Qc2 f5 20.Bd3 g5 21.Nb1 g4 22.Ne5 Ne5+/- 23.de5 Be5 24.Be5 Qe5 25.Be4 de4 26.Rfd1 Red8 27.a4 Bd5 28.Qc3 Qc3+= 29.Nc3 Bb3 30.Rd8 Rd8 31.h3 gh3 32.gh3 Rc8 33.Kg2 Kf7 34.Kg3 Ke6 35.Ne2 Rc1 36.Nc1 Ba4 37.Ne2 Kd6 38.Nd4 Kc5 39.Kf4 Bb5 40.Kf5 Bd3 41.Ne6 Kd6 42.Ng5 a5 43.Nh7 a4 44.Ng5 a3 45.h4 a2 46.h5 0–1. Troselj,T – Burovic,I, Rijeka CRO, 2001.

7.Be2 b6 8.b5 Bb7 9.c4 c5 10.bc6 Bc6 11.0-0 Qc7 12.a4 a5 13.Rc1 Qb7 14.Ba3 Rfe8 15.Rb1 dc4 16.Nc4 Ne4 17.Qb3 Bd5 18.Qb2 Qc6 19.Rfc1 Qe6 20.Ncd2 (20.Nb6 Rab8 21.Bb5 Rb6 22.Bd7 Rb2 23.Be6 Rb1 24.Bd5 Rc1 25.Bc1 Nc3–+) 20...Bh6 21.Bc4 Rac8 22.Qb5 Ndf6 23.Qb6 (23.Ne4 Qe4 24.Bd3 Rc1 25.Bc1 Qg4+/-) 23...Rc4+= 24.Nc4 Bc4 25.Qe6 (25.Qa5 Nf2 26.Re1 Nd3–+ (26...Be3?! 27.Bc1 Nh3 28.Kh1-/+)) 25...Be6 (25...fe6? 26.Rc4 Ng4 27.Rb5+–) 26.Ne5 Nd5 27.Nc6 Bg5 28.Rb5 Bf6 (28...Nf2!? 29.Rcc5 Be3 30.Rd5 Bd5 31.Rd5 e6 32.Ra5 Ng4 33.Kf1 Nh2 34.Ke2 Ng4=) 29.Ra5+= (worse is 29.Na5 Nec3 30.Rb2 Ra8+=) 29...Kg7 30.f3 Nd2 31.e4 Nf4 32.Rd1? White intends e5 (better is 32.Ra7!? Nb3 33.Rc5=) 32...Nc4-/+ 33.e5 Bg5 (33...Na3?! 34.ef6 Kf6 35.d5=) 34.g3 Ne2 (34...Na3?! 35.gf4 Bf4 36.Rc5=) 35.Kf2 Na5 36.Na5 Nc3 37.Rd3 Nd5 38.f4 Bh6 39.h4 (39.Nb7 Bf5 40.Rb3–+) 39...f6 (39...Bd7 40.Nc4–+) 40.Nc6 (40.Nb7!?-/+) 40...Bd7–+ 41.Nb4 Nb4 42.Bb4 Ba4 43.Ra3 Bc6 (43...Bc2!?-/+) 44.Ra6+= Bd5 45.Be7 fe5 46.Bf6 Kg8 47.fe5 (47.Ra5 Be4 48.fe5 Ra8 49.Ra8 Ba8-/+) 47...Rc8 (47...Rb8 48.Bg5 Bg5 49.hg5 Rb2 50.Ke3 Rb3 51.Kf4 Rd3-/+) 48.g4? (better is 48.Rd6!? Rc2 49.Ke1-/+) 48...Rc2–+ 49.Ke1 Bd2 50.Kf2?? (better is 50.Kd1 Rb2 51.Ra3–+) 50...Bf4 51.Ke1 Bf3 52.Ra1 (52.Bg5 Bg3 53.Kf1 Rf2 54.Kg1 Rh2 55.Rg6 hg6 56.d5 Rh1) 52...Bg3 53.Kf1 Rh2 (53...Rh2 54.Ra8 Ba8 55.Bg5 Bf3 56.Be3 Rb2 57.Bc1 Rb1 58.d5 Rc1; 53...Rf2 54.Kg1 Rh2 55.Ra8 Ba8 56.d5 Bd5 57.Kf1 Bf3 58.e6 Rh1) 0–1. Morozov,N (2260) – Kosakowski,Jakub (2145), TCh–EUR Youth U18, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Nbd7)

7.Be2 c6 8.0-0 Qc7 9.c4 Re8 10.Qb3 Nb6 11.a4 dc4 12.Nc4 Be6 13.a5 Bc4 14.Bc4 Nc4 15.Qc4 a6 16.Ne5 e6 17.Rfe1 Red8 ½-½. Huynh,Laurent (2070) - Akulov,Lev (1880), 28th EY Open U16, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 Ne4 8.c4 Nd2 9.Qd2 Nb6 10.c5 Nc4 11.Bc4 dc4 12.Qc2 b5 13.cb6 ab6 (13...cb6 14.Qc4 (14.0-0 Ba6) 14...Be6 15.Qa6+=) 14.Qc4 Be6 15.Qc2 Ra2 (15...Ba2 16.0-0+=) 16.0-0 Bf5 (16...Qd6 17.Ra2 Ba2 18.Ra1+=) 17.Qc3= Ra1 18.Ra1 Qd6 19.h3 (19.Ne5 b5=) 19...Rc8 (19...c5 20.bc5 bc5 21.Qe1=) 20.Rc1 (20.Ne5 Bf6=) 20...Qd5 (20...Be6 21.Ne5=) 21.Qc4 ½–½. Roy Chowdhury,S (2440) – Singh,Gurp (2255), 7th Parsvnath Open, New Delhi IND, 2009.

7.Be2 Re8 8.0-0 c6 9.c4 e6 10.a4 Ne4 11.Ne4 de4 12.Nd2 f5 (12...e5 13.de5 Be5 14.Be5 Re5 15.Qc2+=) 13.Qb3 a5 14.c5 ab4 15.Nc4 (15.Qb4 b6 16.cb6 Nb6+/-) 15...Nf6 (15...b6 16.cb6 Nb6 17.Qb4 Nc4 18.Bc4+=) 16.Nd6 Re7 17.Qb4 Nd5 18.Qb3 Kh8 19.a5! g5 (19...Ra5 20.Ra5 Combination) 20.f3+- ef3 21.Bf3 g4 22.Bg4?? (better 22.Be2+-) 22...fg4=+ 23.Nf7 (23.e4 Nc7=+) 23...Rf7 24.Rf7 e5 (24...Kg8 25.Rf2 Ra5 26.e4 Ra1 27.Ba1-/+) 25.e4= Nf4 26.d5 (26.de5? Be6 27.Qe3 Ng2 28.Kg2 Bf7-+) 26...Qe8 27.Rc7 (27.Rb7? Bb7 28.Qb7 cd5 29.ed5 Qf8-+) 27...cd5 28.ed5 Bf5 (28...Ne2 29.Kh1 Qh5 30.Rc8 Rc8 31.Qb7 Qf5-/+) 29.Qb7 Rb8 30.a6 (30.Rg7 Rb7 31.Rb7 g3 32.hg3 Ne2 33.Kf2 Nd4+-) 30...Be4?? (30...Qf8 31.Rf7 Rb7 32.Rf8 Bf8 33.ab7 Bc5 34.Kh1 Bd6+-) 31.a7 (31.a7 Rb7 32.Rb7 Nd5 33.a8Q+-; 31.Rg7?! Rb7 32.Rb7 Bd5=+) 1-0. Xiong,Jeffery (2705) - Murzin,Volodar (2475), PNWCC Online Blitz JP, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

7.Be2 Re8 8.c4 c6 9.0-0 a5 10.b5 c5 11.Rc1 b6 12.Ne5 Bb7 13.Nc6 Qc7 14.dc5 bc5 15.cd5 Nd5 16.Bg7 Kg7 17.Ne4 Bc6 18.Nc5 Rac8 (18...Ne5 19.Qd4 Nb4 20.f4 (20.bc6?! Red8 21.Nd7 f6+=) 20...Na2 21.bc6 Nc1 22.Rc1+-) 19.Nb3 (19.Nd7!? Qd7 20.bc6 Rc6 21.Qa4+/-) 19...Ne5 20.bc6 (worse 20.Rc6 Nc6 21.Qd5 Nb4=+) 20...Red8 21.Nd4 Nb4 22.Qa4 Qb6 (22...Nbc6?? 23.Bb5+-) 23.Qb5 Qc7 24.Rc5 Rb8 25.Qa4 (25.Qa5?! Qa5 26.Ra5 Nec6 27.Nc6 Nc6+/-) 25...Qd6? (25...Rd5 26.Rc3 Nd7+-) 26.Qa5 Nbd3 (26...Nbc6 27.Nc6 Nc6 28.Qc3 Nd4+-) 27.Bd3 Nd3 28.Rg5 Qc7 1-0. Ter Sahakyan,S (2545) - Thaga,Sheriff M (1960), 1st Goa Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 h6 8.0-0 Re8 9.a4 Nh7 (9...a5 10.b5+=) 10.c4 c6 11.b5 dc4 (11...Nhf6 12.Qb3+=) 12.Nc4 cb5 13.ab5 Nhf6 14.Qb3 Nb6 15.Nb6 Qb6 16.Bc4 e6 17.Ba3 Bf8 18.Bf8 Kf8 19.Rfc1 Kg7 20.Ne5 Qd6 (20...Nd7 21.Nd3+/-) 21.Be2 Nd5 22.Bf3 f6 23.Nc4 Qe7? (better 23...Qd8+-) 24.Bd5 ed5 25.Nb6! Rb8 (25...ab6 26.Ra8 Pinning (26.Ra8 Deflection)) 26.Nd5 (worse 26.Nc8 Rbc8 27.Rc8 Rc8 28.Qd5 Qf7 29.Qf7 Kf7+-; 26.Rc8?! Rbc8 27.Nc8 Rc8 28.Qd5 Rc7+-) 26...Be6? (26...Qd6 27.Nc7 Re7+-) 27.Ne7 (27.Ra7?! Qf7 28.e4 Rbd8+-) 27...Bb3 28.Rc7 Bf7 29.Nd5 (better 29.Ra7 f5 30.Rcb7+-) 29...a6 30.ba6 ba6 31.Nf4 Rb6 32.Ra7 g5 33.Nd3 Ree6 (33...Reb8 34.g4+- (34.R7a6?? Ra6 35.Rc1 Ra2-+)) 34.Nc5 Rec6 35.R7a6 Bc4 36.Rb6 Rb6 37.g4 Rb2 38.h3 h5 39.Kg2 hg4 40.hg4 Kg6 41.Kg3 Bd5 (41...Rc2 42.Ra7+-) 42.f3 Re2 (42...Bc4 43.Rc1 Be2 44.d5+-) 43.e4 Bc4 44.Rc1 Bb5 45.d5 Rd2 46.Ne6 Be2 (46...Be8+-) 47.Nc5 (better 47.Rc7 f5 48.ef5 Kf6 49.Ng5 Bf3 50.Rc6 Ke5 51.Nf7 Ke4 52.Re6 Kd3 53.Kf3+-) 47...Bb5 48.e5! fe5 49.Ne4 Rd5 50.Rc7 Bd7 51.Rb7 Be6?? (better 51...Rd1+/-) 52.Rb6+- Rd1 (52...Kg7 53.Re6 Rb5 54.Ng5+-) 53.Re6 Kf7 54.Re5 Kg7 55.Rf5 Kg6 56.Ng5 Kh6 57.Kf2 Kg6 58.Ne4 Kh6 (58...Rb1 59.f4+-) 59.Kg3 (59.g5 Kg6 60.Rf6 Kh7+-) 59...Ra1 (59...Rg1 60.Kf4+-) 60.Kf4 Rg1 (60...Kg7 61.Ke5+-) 61.Rh5 (61.g5 Kg7+-) 61...Kg6 62.Rb5 Kf7 (62...Rf1 63.g5 Ra1 64.Ke5+-) 63.Rb6 (63.Kf5 Ke7+-) 63...Ke7 (63...Ra1 64.Nd6 Kg6 65.Nf5 Kh7 66.Rb7 Kg8 67.g5+-) 64.Rf6 (64.Kf5 Rd1+-) 64...Kd7 65.Rf5 Kc7 66.Ng3 (66.Rd5 Ra1+-) 66...Kc6 (66...Kd6 67.g5 Rc1 68.Ne4 Ke7 69.g6+-) 67.Re5 Re1 (67...Ra1+-) 68.Re4 (68.Re1 Kc5 69.g5 Kb6 70.g6 Kc7 71.g7 Kb6 72.g8Q Kc7 73.Rc1 Kd7 74.Qc8 Kd6 75.Ne4 Kd5 76.Qd7) 68...Re4 69.Ne4 (69.Ne4 Kd5 70.Kf5 Kc6 71.g5 Kd7 72.g6 Ke7 73.f4 Kd7 74.g7 Kc7 75.g8Q Kb7 76.Ke5 Kc7 77.Qf7 Kc6 78.Nd6 Kc5 79.Qb3 Kc6 80.Qb7 Kc5 81.Qb5) 1-0. BabaRamdev - Banjovi (2810), Rated Bullet game, lichess.org, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.c4 dc4

8.Bc4 Nb6 9.Bd3 Nbd5 10.a3 c6 11.0-0 Re8 (11...a5 12.b5=) 12.Qb3+= Bg4 13.h3 Bf3 14.Nf3 (14.gf3?! Qd7 15.Kh2 a5=) 14...Nd7 15.Rfd1 a6 16.Rab1 (16.e4 Nf4+–) 16...Qc7 (16...f5 17.Re1+=) 17.e4+– N5f6 (17...Nf4 18.Bf1+–) 18.Rbc1 White prepares the advance d5 18...Qb6 (18...Nh5 19.Bc4 Rf8 20.d5+–) 19.d5+– cd5 20.e5 (20.ed5?! Rac8=) 20...Nh5 21.Qd5 Nb8?? (better 21...Nf4 22.Qe4 Nd3 23.Rd3 Rad8+–) 22.Bd4 (22.Bd4 e6 23.Qe4+– (23.Bb6?! ed5 24.Be3 d4 25.Nd4 Be5+–)) 1–0. Druska,J (2440) – Ihnat,Marek, V4 Stiavnica Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Nbd7 7.c4 dc4)

8.Bc4 Nb6 9.Bd3 Nfd5 10.a3 Bd7 11.Rc1 Ba4 12.Qe2 a6 13.Ne4 c6 14.Nc5 Qb8 15.Na4 Na4 16.Ba1 a5 17.b5 Qd6 18.Qa2 cb5 19.Bb5 Nab6 20.0-0 Rfc8 21.a4 Nb4 22.Qb3 e6 23.Nd2 Qd8 24.Ne4 Rc7 25.Rc7 Qc7 26.Bb2 Rc8 27.Rc1 Qd8 28.Rc8 Qc8 29.Nd6 Qb8 30.Nc4 (30.Ne8 Bh8+/-) 30...Nc4+= 31.Qc4 Qd8 32.g3 Nd5 33.e4 (33.Qb3 h6+=) 33...Nc7= 34.Bc3 Nb5 35.Qb5 Bd4 36.Qa5 (36.Ba5 b6 37.Bb4 Kg7=) 36...b6-/+ 37.Qb4 Bc3 38.Qc3 Qd1 39.Kg2 Qa4 40.Qc8 Kg7 41.Qc3 Kf8 42.Qc8 Qe8 43.Qc7 b5 44.Qc5 Kg8 45.f3 Qb8 46.Qb4 Qb6 47.g4 Qc6 48.g5 e5 49.h4 Kg7 50.Kg3 Qc4 51.Qe7 Qd4 52.Qb7? b4 53.Qb8-/+ Qc5 54.Kg2 Qe7 55.Kg3 f6 56.gf6 Kf6 57.Qh8 Ke6 58.Qa8 Kd6 59.Qd5 Kc7 60.Qa5 Kc6 61.Qa6 Kc5 62.Qa5 Kc4 63.Qa6 Kc3 64.Qa1 Kc2 65.Qa2 Kd3 66.Qb3 Kd4 67.Qb2 Kc4 68.Qc2 Kb5 69.Qd3 Ka4 ½–½. Cording,Harm (2265) – Keller,Dieter (2385), EU–chT Seniors, 2003. (=1.d4 d5 2.Nf3 Nf6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2 Nbd7)

8.Nc4 Nb6 9.Nce5 a5 10.b5 Nfd7 (10...Bf5 11.Bd3=) 11.Nd3 (11.Bd3 Ne5 12.Ne5 Be6+=) 11...Nc4= 12.Bc3 Ndb6 (12...Nd6 13.Nf4=) 13.Rc1 Be6 (13...Qd5 14.Nc5+=) 14.Nc5+/- Qc8 (14...Bc8 15.Bd3+/-) 15.Be2 (15.Ne6 Qe6 16.d5 Nd5 17.Bg7 Nce3+=) 15...Rd8 16.0-0 Bg4 (16...Nd6 17.a4+=) 17.Ba1 (17.Qc2 c6 18.h3 Bf3 19.Bf3 e5 20.bc6 bc6+/-) 17...Nd6+= 18.a4 Nd5 19.Qb3 Nf6 (19...e6 20.Rfd1+=) 20.Nd3 (20.h3 Bf5+/-) 20...Nfe4 (20...Be6 21.Qc2 Nd5 22.Nfe5+=) 21.Qc2+/- Ne8 22.Nde5 (22.Rfd1 Bf5+/-) 22...Bf3 (22...Be5 23.Ne5 Be2 24.Qe2+/-) 23.Bf3 Ng5 (23...N4d6 24.Rfd1+/-) 24.Bg4 Ne6 25.Nd3 (25.Rfd1 Be5 26.de5 Rd1 27.Rd1 c6+/-) 25...h5 (better is 25...Nd4!? 26.Bc8 Nc2 27.Bb7 Na1 28.Ba8 Nb3=) 26.Bh3 f5 27.Qa2 (27.g3 Nf6+/-) 27...Kh7 28.g3 Ng5 (28...Nd6 29.Bg2+/-) 29.Bg2+– Rb8 (29...Nd6 30.Nc5+–) 30.Nf4 (30.Nc5 Nd6+–) 30...Qd7 (30...Nd6+–) 31.h4 Ne4 (31...e5 32.de5 Ne4+–) 32.Qf7 Qd6 33.Ne6 Rd7 (33...c6 34.d5 (34.Nd8?! Rd8 35.bc6 bc6+–) 34...Qd5 35.Be4 (worse is 35.Bg7 N8d6 36.Qe7 Re8 37.Nf8 Kg8 38.Ng6 Qf7 39.Qf7 Kf7 40.Be4 Ne4+–) 35...fe4 36.Rc5 Qc5 37.Nc5+–) 34.Nf8 (better is 34.d5!? N4f6 35.Be5 Qb4 36.Bf6 ef6 37.Qd7 Qd6 38.Rc7 Qd7 39.Rd7 b6+–) 34...Kh6 (34...Kh8 35.Ng6 Kh7 36.Nf8 Kh8 37.Qf5 N4f6 38.Nd7 Qd7 39.Qd7 Nd7+–) 35.Nd7 (better is 35.d5 e5 36.Nd7+– (36.Qd7?! Qf8 37.Be4 fe4+–)) 35...Qd7 36.Be4 fe4 37.Qf4 Kh7 38.Qe4 Nf6 39.Qg2 Nd5 40.e4 Nb4 (40...Nb6 41.Qf3+–) 41.d5 Bh6 (41...c6 42.Bg7 Kg7 43.dc6 bc6 44.Rfd1+–) 42.f4 c6 43.dc6 bc6 44.Rfd1 Qe6 45.Be5 Rc8 (45...Rf8 46.Bc7 cb5 47.ab5+–) 46.b6 Rg8 (46...Rf8 47.b7 Na6 48.Qf2+–) 47.b7 Na6 48.Qe2 (better is 48.Qf2 Bg7 49.Bg7 Kg7+–) 48...Nb8 (48...Qb3 49.Rc6 Nb8+–) 49.Qc4 Qg4 (49...Qc4 50.Rc4 Bg7 51.Bb8 Rb8 52.Rd7+–) 50.Kg2 (better is 50.Qf7 Rg7 51.Qb3 g5 52.fg5 Qe4 53.Bb8 Rg8 54.Qf7 Rg7 55.Qh5 Qg6 56.Qg6 Rg6 57.gh6 Rg8+–) 50...Rf8 (50...Bg7 51.Bg7 Kg7 52.Qc3 Kh7+–) 51.Rd8! (51.Rd8 Qe2 52.Qe2 Rd8 53.Qa2+–) 1–0. Vidonyak,Nellya (2175) – Schaedler,Karin (2020), Frauenbundesliga, 2010. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Nbd7)

8.Nc4 Nb6 9.Nce5 Nfd5 10.a3 Bd7 11.Rc1 Ba4 12.Qd2 a6 13.Bd3 f6 14.Nc4 Nc4 (14...Bb5 15.Nb6 Nb6 16.h4+=) 15.Bc4 (worse is 15.Rc4 f5+=) 15...Bb5 16.Qe2 (16.Bb3!? f5 17.Qc2+=) 16...Bc4= 17.Qc4 b5 18.Qb3 Rf7 19.0-0 Nb6 20.Rc2 Nc4 21.Rfc1 e6 22.Nd2 Nd2 23.Rd2 Qd5 24.Qd3 f5 25.Rc5 Qe4 26.Qe4 fe4 27.Rdc2 Ra7 28.Rg5 Bf8 29.Re5 a5 30.Rb5 ab4 31.ab4 Bd6 32.g3 Rf8 33.Ra5 Rb7 34.Bc3 Rf5 35.Rca2 Rfb5 36.Ra8 Rb8 37.R2a4 Kf7 38.Rb8 Rb8 39.Kf1 h5 40.h4 Rb5 41.Ke2 Rf5 42.Be1 Kf6 43.Kd2 Rd5 44.Kc3 Kf5 45.Ra8 Rb5 46.Kc4 Rb6 47.Ra5 Kg4 48.Rg5 Kf3 49.Rg6 Ke2 50.Bc3 Kf2 51.Re6 Rc6 52.Kb3 Ke3 53.d5 Rb6 54.Rh6 Kf3 55.Rh5 Kg3 56.Rh8 e3 57.h5 e2 58.Re8+– Bf4 59.Re2 Rh6 60.Be5 Rh5 61.Bf4 Kf4 62.Kc4 Rh1 63.Kb5 Rd1 64.Kc6 Rc1 65.Kd7 Rc4 66.Re6 Rb4 67.Kc7 Rd4 68.d6 Kf5 69.Re8 Rc4 70.Kb6 Rd4 71.Kc6 Rc4 72.Kd5 (72.Kd5 Rc1 73.Rf8 Kg6 74.d7 Rd1 75.Kc6 Rc1 76.Kb5 Rb1 77.Kc5 Rc1 78.Kb4+–) 1–0. Dive,R – Love,A, Wellington ch–NZL, 1995.

8.Nc4 Nb6 9.Nce5 Qd6 10.a3 Bf5 11.Be2 Ng4 12.0-0 Ne5 13.Ne5 Rfd8 14.Rc1 c6 15.Qb3 Qe6 16.Qe6 Be6 17.Nc4 Nc4 18.Bc4 Bd5 19.Bd5 Rd5 20.f4 e6 21.Bc3 h5 22.g3 a6 23.Kg2 Rad8 24.h3 Bf6 25.g4 Kh7 26.Kf3 Be7 27.e4 R5d7 28.gh5 gh5 29.Rg1 Bf6 30.e5 Bh4 31.Rg2 Rg8 32.Rg8 Kg8 33.Ke4 (33.Rg1 Kf8+=) 33...Kh7 (33...f5!? 34.ef6 Bf6=) 34.f5+= Rd8 35.Rf1 Rg8 36.fe6 fe6 37.Bd2 Rg2 38.Be3 Rg7 39.Kd3 (39.Rf8 Rg8 40.Rf4 Be7+=) 39...Kg8 (39...Rg3 40.Ke2=) 40.Kc4 Be7 41.a4 (better 41.Rf3!?+=) 41...Rg3=+ 42.Re1 (42.Rg1!? h4 43.b5 cb5 44.ab5=+) 42...Kf7 (42...b5 43.Kd3–+) 43.b5-/+ ab5 44.ab5 Rh3 45.bc6 bc6 46.Bd2 h4 47.Bb4 Bb4 (47...Bg5 48.Rf1 Kg6 49.Kc5-/+) 48.Kb4 Rh2 49.Kc5 Ke7 50.Re4 (50.Kc6 Rc2 51.Kb5 h3-/+) 50...Rc2 51.Kb6 h3 52.Rh4 h2 53.Kc7 (53.Rh7 Kf8 54.Kc7 Kg8-/+) 53...Rd2 (53...Kf7 54.Kd6-/+) 54.Rh7 Kf8 55.Kc6 Kg8 56.Rh3 Kf7 57.Rh6 Rd4 (better 57...Kg7!? 58.Rh3 Kg6-/+) 58.Rh2= Rd5 59.Rf2 Ke7 60.Re2 Kf7 61.Rf2 Kg7 62.Rg2 Kh6 63.Rg8 Re5 64.Kd6 Re1 65.Re8 The isolani on e6 becomes a target 65...Kg5 66.Re6 Re6 67.Ke6 ½–½. Koellner,Ruben Gideon (2250) – Alquist,E (2035), Xtracon Chess Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Nbd7 7.c4 dc4)

8.Nc4 Nb6 9.Nce5 Bf5 10.Be2=.

8.Nc4 Nb6 9.Nfe5 Be6 10.Rc1 Nfd5 11.a3 c6 (11...f6 12.Nf3+=) 12.Be2 f6 13.Nf3 Bf7 (13...Nc4 14.Bc4 Qd7 15.Qd2=) 14.0-0 Qd7 15.Na5 Rfe8 (15...Nc8 16.Ne1+=) 16.g3+= Rab8 17.Nb3 Na4 18.Ba1 Nc7 19.Na5 Nb6 20.Qc2 e6 (20...Nb5 21.Bb2+=) 21.Rfd1 Red8 22.Nd2 Ncd5 (22...Nb5 23.Bb2+=) 23.Ne4 Qe7 24.Nc5 Qc7 (24...f5 25.Bb2+/-) 25.Bg4 (25.e4 Ne7+–) 25...f5 26.Be2 Nd7 27.Nab3 (27.Nc4 Nc5 28.dc5 Ba1 29.Ra1 e5+=) 27...e5 (27...Nc5 28.Nc5 a5 29.Qb3=) 28.Nd7+= Rd7 29.de5 Be5 30.Nc5 Re7 31.Bd4 Rbe8 32.Bf3 Rc8 (32...Nf6 33.Be5 Re5 34.Qb2+/-) 33.Qb2 (33.b5 Qd6 34.bc6 bc6 35.Be5 Re5+/-) 33...Bd4 34.Qd4 (34.ed4?! Rce8=) 34...a6 35.Qh4 Rce8 36.Qd4 Qb6 (36...Rc8!?=) 37.h4 a5 (37...Qc7 38.Kh2+=) 38.Rb1 (38.b5!? Qc7 39.Nb7 (39.Bd5?! Bd5 40.bc6 bc6+=) 39...Ne3 A) 40.fe3 Qg3 41.Bg2 Re3–+ (41...Rb7 42.bc6 Rc7 43.Rc3+/-); B) 40.Nd6 Nd1 41.Ne8 Re8 42.b6+– (42.Qd1?! c5+/-; 42.Bd1?! c5 43.Qc3 c4+=)) 38...ab4+= 39.ab4 Nc7 (39...Qc7 40.Rd3 Ne3 41.fe3 Qg3 42.Bg2 Re3 43.Re3 Re3= (worse is 43...Qe3 44.Qe3 Re3 45.Nb7+/-)) 40.h5 Bd5 41.Be2 Nb5 42.Qb2 Rg7?? (42...Rf7 43.Ra1 Nd6 44.Na4+/-) 43.Qf6?? (better is 43.h6 Rc7 44.Bf3+–) 43...Qd8? (43...Rf7 44.Qa1+=) 44.Qb2 (better is 44.Qd8 Rd8 45.Bb5 cb5 46.Ne6+–) 44...Nd6 (44...Qb6 45.h6 Rf7 46.Na4+–) 45.b5 1–0. Slabek,Grzegorz (2065) – Sleczka,Bartosz (1890), Dobczyce Poland, 2014. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d5 6.Nbd2 Nbd7)

6.e3 Bf5

7.c4 a5 8.b5 Nbd7 9.a4 Ne4 10.cd5 Nb6 11.Qb3 Nd5 (11...Qd7 12.h3 Qd5 13.Qd5 Nd5 14.Ne4 Be4 15.Ng5+=) 12.Ne4+= Be4 13.Nd2 Nf6 14.Ne4 Ne4 15.Bd3 Nd6 16.Rc1 Re8 17.Qc2 Rc8 18.Be4 e5 19.de5 Be5 20.Bf3 (20.Be5!? Re5 21.Bf3+=) 20...Bb2= 21.Qb2 Qh4 22.Qb3 Re3 23.Qe3 Re8 24.Qe8 Ne8 25.0-0 Qa4 26.Bb7 Nd6 27.Bc6 Qb4 (worse is 27...Nb5 28.Rb1+–) 28.Rfd1 Kg7 (worse is 28...Nb5 29.Rb1 Qc5 30.Bb5+– (30.Rb5?! Qc6 31.Ra5 Kf8=)) 29.Bd7 Qb3 (worse is 29...Nb5 30.Rb1 Qe4 31.Rb5+/-) 30.Rb1 Qc2 31.Rdc1 Qe4 32.Re1 Qb7 33.Ra1 Qb6 34.Rec1 Ne4 (worse is 34...Nb5 35.Rab1+/-) 35.Ra2 a4 36.Bc6 (36.Ra4?? Qf2 37.Kh1 Qe3–+) 36...Nc5 37.Rac2 (37.Rc4 Qa5 38.Ra1 Qa7=) 37...Nb3+= 38.Re1 Qd4 39.Ra2 Qc4 40.Rd1 Nd4 41.Rda1? (better is 41.Ra3-/+) 41...Ne2–+ (41...Nc6?! 42.bc6 h6 43.Ra4 Qc6 44.Ra8+=) 42.Kh1 Nc1 (42...Nc1 43.h3 Na2–+) 0–1. Skopetz,Friedrich (1950) – Kuciel,Wladislaw (2180), Vienna op–A, 2006. (=1.e3 Nf6 2.d4 d5 3.Nf3 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2 Bf5)

7.c4 c6 8.a4 Nbd7 9.Be2 a5 10.b5 Ne4 11.0-0 Nd2 12.Nd2 e5 13.bc6 bc6 14.cd5 cd5 15.Bb5 ed4 16.Bd4 Bd4 17.ed4 Rc8 18.Rc1 Nf6 19.Nb3 Rc1 20.Qc1 Ne4 21.Qe1 Nd6 22.Na5 Nb5 23.Nc6 Qf6 24.Ne7 Kg7 25.Nf5 gf5 26.ab5 Qd4 27.Qa1 Qa1 28.Ra1 Rb8 29.Rb1 Kf6 30.f4 Ke6 31.Kf2 Kd6 32.Ke3 Kc5 33.Rc1 Kd6 34.Rc6 Kd7 35.Rc5 Re8 36.Kd4 Re2 37.Rd5 Kc7 38.Rf5 Rg2 39.Rf7 Kb6 40.Rh7 Kb5 1–0. Dive – Gufeld, London 1995.

7.c4 Nc6 8.a3 dc4 9.Nc4 Qd5 10.Ncd2 a6 11.Rc1 Ne4 12.Bc4 Qd6 (12...Qd7 13.0-0=) 13.Nh4+= Nd2 (13...Qd7 14.Nf5 Qf5 15.Qf3 Qf3 16.Nf3+–) 14.Nf5+– (worse 14.Qd2 Be4=) 14...gf5 15.Qd2 (worse 15.Kd2 Nb4 16.Qf3 e5=) 15...Rad8 16.Qc2 f4 (16...e5 17.de5 Ne5 18.Be2+=) 17.0-0+– Qh6 18.Qe4 Kh8 (18...Rd6!?+–) 19.Ba6!+– fe3 (19...ba6 20.Rc6 Double attack (20.Rc6 Discovered attack; 20.Rc6 Deflection; 20.Rc6 Decoy; 20.Rc6 Overloading)) 20.Qe3 Qd6 (20...Nb4 21.ab4 ba6 22.Rc7+–) 21.Bb7 Nd4 22.Bd4 (22.Rc5 e5+–) 22...Bd4 23.Qf3 Qh6 24.g3 (24.Rfe1 Rd6 25.Rc2 e5+–) 24...Be5 (24...Bf2!? 25.Kh1 Bb6+–) 25.Rc5 f6 26.Rc4 (26.Bd5 Rd7+–) 26...Rd2 (26...e6 27.Re1+–) 27.Rh4 Qg6 28.a4 (28.Rh5 f5 29.Re1 Bd4 30.Re7 Rf7 31.Rf7 Qf7 32.Qf5 Bf2 33.Kg2 Bb6 34.Kh3 Qf5 35.Rf5 Ra2 36.Rf8 Kg7+–) 28...f5 (28...e6 29.a5+–) 29.Qe3 (29.Re1 Rd4 30.Qe3 Rh4 31.Qe5 Rf6 32.Qe7 Rd4+–) 29...Qd6 30.Qg5 (30.b5 f4 31.Qe4 h6+–) 30...Rf7 (30...Bg7 31.a5+–) 31.a5 f4 (31...e6 32.b5+–) 32.a6 (better 32.Be4 Rd1 33.Qh5 Rf1 34.Kf1+–) 32...Ra2?? (better 32...Rg7 33.Qf5 e6+–) 33.Rh6 (better 33.Qh5 Qf6 34.Bd5 fg3 35.Bf7 gf2 36.Kg2 Qc6 37.Qf3 Qf3 38.Kf3 Ra6 39.Rf2 Rf6 40.Ke3 Rf2 41.Kf2 Kg7+–) 33...Rf6 (33...e6 34.Qh5 Bg7 35.Qf7 Bh6 36.Bc8+–) 34.Rf6 (34.Rh5!? fg3 35.Qe5 Raf2+–) 34...ef6 35.Qf5 fg3 36.hg3 Qb4?? (36...Bd4 37.Kg2 Rd2+–) 37.Bd5 (37.Rb1 Qd4 38.Be4 Qf2 39.Qf2 Rf2 40.Kf2 Bd4 41.Kf3 Kg8+–) 37...Ra3 (37...Ra6 38.Be4 Qe7 39.Qc8 Kg7 40.Qa6 Qd7+–) 38.Qc8 Kg7 39.Qg8 Kh6 40.Kg2 Bg3 1–0. Pakhomov,Egor – Tsydypov,Zhamsaran, SibFR Championship Men, 2012. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5)

7.Bd3 e6+=.

7.Be2 Nc6 8.a3 a5 9.b5 Na7 10.a4 c6 11.c4 cb5 12.cb5 Rc8 13.0-0 Bc2 14.Qe1 Ne8 15.Ng5 Nd6 16.Ba3 Bf6 17.Ndf3 Nc4 18.Bc5 b6 19.Bc4 dc4 20.Ba3 Bg5 21.Ng5 Ba4 22.Be7? Qe7–+ 23.Nh7 Kh7 24.Ra4 Nb5 25.Qc1 c3 26.Rd1 Rc7 27.Rd3 Rfc8 28.Ra2 Rc6 29.Qb1 c2 30.Qc1 Nc3 31.Rc2 Qb4 32.Kf1 Qc4 33.Rcc3 Qd3!! 34.Ke1 Rc3 35.Qd1 Rc1 (35...Rc1 36.f3 Qd1 37.Kf2 Qe1#) 0–1. tron7 – amateura, kurnik, 2012.

7.Be2 Nc6 8.a3+= a6 9.0-0 Nd7 (9...Qd6 10.c4=) 10.c4 dc4 11.Nc4 Re8 (11...Nb6 12.Rc1=) 12.Rc1 (12.d5 Na7 13.Bg7 Kg7 14.Ng5+=) 12...e5? (better is 12...Nb6=) 13.d5+– Na7 14.Qb3 (14.d6 Nb5 15.dc7 Qc7+–) 14...b5 (14...Nc8 15.Rfd1+=) 15.Na5 (15.Ncd2 Nb6+/-) 15...Nb6 16.Rfd1 Rb8 17.Rd2 g5 (17...Na4 18.Ba1+/-) 18.Ne1 Re7 19.Nd3 (19.g4 Bg6+/-) 19...Bd3 (19...Qd5!? 20.Qd5 Nd5+/-) 20.Bd3+– e4 21.Bb1 Bb2 (21...Qd6 22.Bd4 Qh6 23.Qd1+–) 22.Qb2 (22.Rb2?! Qd5 (22...Nd5? 23.Rd2 Rd7 24.Rcd1+–) 23.Qd5 Nd5+=) 22...f5 (22...Nd5?? 23.Qd4 Rd7 24.Qa7+–) 23.Nc6 (23.Ba2 Rf7+–) 23...Nc6 24.dc6 (worse is 24.Rc6 Nc4 25.Rc4 bc4+=) 24...Qe8 25.Ba2 Nc4?? (25...Rf7+–) 26.Rc4 bc4 27.Bc4 Rf7 (27...Qf7 28.Bf7 Kf7 29.Rd7 Rd7 30.cd7+–) 28.Rd7 (28.Rd7 Qd7 29.cd7+–) 1–0. Hobber,Anders (2315) – Kaasen,Tor Fredrik (1675), Helsingor DEN, Politiken Cup, 2014. (=1.d4 Nf6 2.Nf3 d5 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2 Bf5)

7.Be2 Qd6 8.c3+=.

7.Be2 Re8 8.0-0= c6 9.c4 h6 (9...a5 10.Qb3=) 10.a4+= Nbd7 11.Qb3 e6 12.Rfd1 g5 13.b5 a6 14.Rac1 ab5 15.ab5 Ne4 16.cd5 cd5 17.Ne4 Be4 18.Ne5 Bf8 19.Nd3 Qb6 20.Nc5 Nf6 (worse 20...Nc5 21.dc5 Qa5 22.f3+–) 21.Ne4 Ne4 22.Bd3 Rec8 23.Be4 de4 24.d5 ed5 25.Qd5 Rc1 26.Rc1 Bg7 27.Bg7 Kg7 28.Qe5 Kg8 (28...Qf6 29.Qe4 Qb2 30.Qb1+=) 29.g3 Rd8 30.Rc4 Qg6 31.Re4 Qd6 32.Qd4 Qc7?? (better 32...Kh7+–) 33.Qf6+– Rd1 (33...Qc8 34.Re7 Qc4+–) 34.Kg2 Qd8 35.Re7 Qf8 36.Rb7 (better 36.b6 Qg7 37.Qf5 Qg6 38.Qg6 fg6 39.Rb7 Rb1 40.Rb8 Kg7+–) 36...Rd6 37.Qf5 (37.Qf5 Qe8 38.Rc7+–) 1–0. Pashikian,A (2605) – Abdumalik,Z (2485), 11th Asrian Memorial, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 Bf5)

7.Ne5 Nbd7 8.g4 Be6 9.g5 Ne4 10.Ne4 Ne5 11.de5 de4 12.c4 Qc8 13.Qc2 c5 14.Qe4 cb4 15.Rc1 Bf5 16.Qg2 Qc7 17.f4 Rfd8 18.Be2 Qa5 19.Bd4 b3 20.Kf2 Qa2 21.Ra1 Qc2 (21...Qd2!? 22.Rhd1 Qb4–+) 22.Rhc1+= Qd2 23.Bc3 Qd7 24.Bf3 Qc7 25.Kg3 Rd7 26.Ba5 (better is 26.Qb2 Bc2 27.Ra4-/+) 26...Qc5–+ 27.Qb2 Qe3 28.Rc3 (28.Re1 Qd3 29.Ra3 Be6 30.Rb3 Qf5 31.Rb7 Rc8–+) 28...Qc5 (better is 28...Be5 29.Re3 Bb2–+) 29.Rb3-/+ Rb8 (worse is 29...Qc4 30.Rc3 Qa6 31.Bc7=) 30.Bb7?? (better is 30.Bb4 Qc4 31.Rc3-/+) 30…Rbb7!–+ (30...Qc4?! 31.Raa3–+) 0–1. Bukh,Yefim (1925) – Tuvshintugs,Batchimeg (2270), San Francisco MI Fall op, 2005. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3 0-0 6.Nbd2 Bf5)

7.Ne5 Nfd7 8.g4 Be6 9.Nd3 f6 10.c4 c6 11.c5 a5 12.a3 Bf7 13.Be2 e5 14.Qc2 ab4 15.ab4 Ra1 16.Ba1 Na6 17.Qb1 Nc7 18.h4 Ne6 19.g5? (better is 19.h5!?=) 19...ed4-/+ (worse is 19...fg5 20.de5 gh4 21.f4=) 20.Bd4 Nd4 21.ed4 fg5 22.h5 gh5 23.Bh5?? Bh5 24.Rh5 Qe8 (24...Qe8 25.Kd1 Qh5 26.Kc2 Bd4–+) 0–1. Dabhade,A (1875) – Joshi,GB (2255), 32nd TCh–IND, 2012. ( =1.d4 d5 2.e3 Nf6 3.Nf3 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2).

7.Nh4 Bg4+= 8.Be2 Be2 9.Qe2 Qd6 10.a3 Nbd7 11.c4 c6 (11...a5 12.b5=) 12.f4 (12.0-0 a5=) 12...a5+= 13.c5 Qc7 14.0-0 Ra7 (14...Rfb8 15.Bc3=) 15.b5 (15.ba5 Ra5 16.Nhf3 Rb8=) 15...cb5+= 16.Qb5 a4 17.Rfc1 (17.Rac1 b6 18.c6 Nb8=) 17...Ra5 (17...Qc6 18.Qd3=) 18.Qd3 Qc6 19.Bc3 (19.Rab1 Rb5=) 19...Ra7 (19...Rb5 20.Nhf3=) 20.Rab1 Rb8 (20...Qe6 21.Nhf3=) 21.Bb4 (21.Nhf3 Qe6+=) 21...Rc8 22.Nhf3 e6 (22...Bh6 23.Rc2+=) 23.Ne5 Ne5 (23...Qa6 24.Qa6 Ra6 25.Rb2+=) 24.fe5 Ne4 (24...Nd7 25.e4+=) 25.Ne4+/- de4 26.Qe2 Raa8 (26...f6 27.ef6 Bf6 28.Rf1+/-) 27.Bd2 (27.Bc3 Qd5+/-) 27...Bf8 (27...Qd5 28.Rf1+/-) 28.Rb6 Qd5 ½–½. Roser,Ludwig (1795) – Weiss,Matthias (2040), World Senior Teams +50, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 Bf5)

7.Be2 Nbd7

8.0-0 a5 9.b5 a4 10.Ba3 Nb6 11.c4 dc4 12.Nc4 Nc4 13.Bc4 Re8 14.Rc1 h6 15.Ne5 e6 16.f3 g5 17.e4 White plans d5 17...Bh7 18.Qd2 (18.Qd3 g4+/-) 18...Nd7 (18...Ne4 19.fe4 Be5 20.Rcd1=) 19.Nd7 Qd7 20.Rfd1 Rad8 (20...Red8 21.Bb2+=) 21.d5+/- c6?? (better 21...Bg6+/-) 22.bc6 (better 22.de6 Bd4 23.Qd4 Qd4 24.Rd4 Bg6+-) 22...bc6 (22...Qc7 23.de6 Bg6+-) 23.d6 (better 23.de6 Qa7 24.Kf1 Rd2 25.ef7 Qf7 26.Bf7 Kf7 27.Rd2+-) 23...Be5 24.Bc5 (24.Qa5 f6+/-) 24...Bg6 (better 24...Bf4!? 25.Qc2 Bc1 26.Qc1 Ra8=) 25.Rb1 Rb8 26.Qa5 (better 26.Rb8!? Rb8 27.Qa5+/-) 26...Rb1= 27.Rb1 Bd6 28.Bf2 (28.Bd6!? Qd6 29.Qa4=) 28...a3=+ 29.Qc3 Qe7 (29...Rd8 30.Be3=+) 30.Bb3 (30.Ba6 Rd8=) 30...Rd8 (30...Rc8!?=+) 31.Qc6= Be5 32.Qc5 Qc5 33.Bc5 Rd2 (better 33...Bb2!? 34.Kf1 Rd3=+) 34.Ba3+/- Bd4 35.Kh1 f5? (better 35...Be5+/-) 36.Be6 (36.Bb4 Re2 37.Bc4 Rc2 38.Be6 Bf7 39.ef5 Be6 40.fe6 Ra2+-) 36...Kg7 (36...Bf7 37.ef5 Be6 38.fe6+-) 37.ef5 Be8 38.Bb4 Re2 39.h3 Bb5 (39...Be5 40.Rd1+-) 40.Rd1 Be5 41.Bd6 Bf6 42.Bc5 (42.Rb1 Rd2+-) 42...Be5 (42...Rc2 43.Bb4+-) 43.Bd4 Bd4 44.Rd4 Re1 (44...Rb2 45.Rd1+-) 45.Kh2 Re2 (45...Kf6 46.a4 Bf1 47.f4+-) 46.h4 (46.a4 Be8+-) 46...Kf6 47.hg5 hg5 48.Rg4 (48.a4 Be8 49.a5 Re5+-) 48...Re5? (48...Bd3 49.Rb4 Bf5 50.Bf5 Kf5 51.a4+-) 49.a4 (49.f4 gf4 50.Rf4 Re1+-) 49...Bd3 (49...Be8+-) 50.a5! Ra5 51.Rd4 (51.f4 Bf5 52.Bf5 Rf5 53.fg5 Kg6+/-) 51...Bf5 52.Bf5 Rf5 (52...Kf5 53.Rd8+/-) 53.Kg3 Re5 54.Re4 Re6?? (better 54...Rc5+/-) 55.Re6+- Ke6 56.Kg4 Kf6 57.Kh5 Kf5 58.g3 Kf6 59.g4 Ke5 60.Kg5 Ke6 61.f4 Kf7 62.f5 Kg8 63.Kf4 Kf8 64.g5 Kg8 65.Ke5 Kh8 66.f6 Kg8 (66...Kh7 67.Kf5 Kg8 68.g6 Kh8 69.g7 Kh7 70.Ke6 Kg6 71.g8Q Kh6 72.Kf5 Kh5 73.Qg5) 67.g6 Kh8 68.Ke6 (68.g7 Kh7 69.Ke6 Kg6 70.g8Q Kh6 71.Kf5 Kh5 72.Qg5) 68...Kg8 69.f7 (69.g7 Kh7 70.Kf7 Kh6 71.g8Q Kh5 72.Ke6 Kh4 73.f7 Kh3 74.f8Q Kh4 75.Qh6) 69...Kh8 (69...Kg7 70.Kf5 Kf8 71.Kg5 Ke7 72.Kh6 Kf8 73.Kh7 Ke7 74.Kg8 Kd7 75.g7 Kc7 76.f8Q Kb6 77.Qd6 Ka5 78.Kf7 Kb5 79.g8Q Kc4 80.Qc8 Kb3 81.Qb6 Ka4 82.Qca6) 70.f8Q 1-0. BabaRamdev - foreverlovechess (2765), Rated Bullet game, lichess.org, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.0-0 c6 9.a4 Ne4 (9...a5 10.b5=) 10.c4 Re8 (10...a5 11.b5=) 11.cd5 (11.Nh4 Nd2 12.Qd2 Be6+=) 11...cd5 12.Ne4 (12.Nh4 Be6=) 12...Be4 13.Qb3 (13.Ng5 Nf6+=) 13...Rc8 (13...Nf6 14.Nh4+=) 14.Rac1 Nf6 15.Ne5 (15.Nh4 g5 16.Nf3 Bf3 17.Rc8 Qc8 18.Bf3 Qf5+=) 15...Bf5 (15...Qd6 16.f3 Bf5 17.b5+=) 16.f3 (16.Bb5 Rf8+=) 16...h5 (16...Qd6 17.b5+=) 17.Rc8 (17.e4 Be6 18.Rc8 Bc8+/-) 17...Qc8 (17...Bc8 18.Rc1+/-) 18.Rc1 Qb8 (18...Qd8 19.e4 Be6 20.Qe3+/-) 19.b5 Rc8 20.Rc8 (20.e4 Rc1 21.Bc1 Be6+=) 20...Qc8+= 21.Qc3 (21.Ba3 Nd7+=) 21...Qc3 22.Bc3 Ne8 23.Bb4 (23.Kf2 f6 24.Nd3 e6+=) 23...f6= 24.Nd3 Bd3 (24...e5 25.Kf2=) 25.Bd3+= Kf7 26.a5 b6 27.ab6 (27.a6 f5+=) 27...ab6 28.Bc5 bc5 (28...Bh6 29.f4 (worse is 29.Bb6 Be3 30.Kf1 Nd6+=) 29...g5 30.Bb6 gf4 31.e4 de4 32.Be4+/-) 29.b6 Bh6 (29...Nd6 30.dc5 Bh6+–) 30.f4+– c4 31.Bg6! Kg6 32.b7 f5 33.b8Q Nf6 (33...Ng7 34.Kf2+–) 34.Qc8 (34.Qe5 Bf8+–) 34...Bg7 35.h3 (35.Qe6 Bf8+–) 35...h4 (35...Bh6 36.Qe6+–) 36.Kf1 1–0. So,Wesley (2805) – Vachier_Lagrave,Maxime (2795), PRO League Group Stage, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5)

8.0-0 c6 9.Nh4 Ne4 (9...Be6!?=) 10.Nf5+= gf5 11.c4 a5 12.b5 Nd6 (12...cb5 13.cb5 Qb6 14.Rc1+=) 13.cd5 cd5 14.a4 Nf6 15.Qb3 Qb6 16.Ba3 Rfc8 17.Rac1 e6 18.Bd3 Bf8 19.Bc5 (19.Nb1 Nde4+–) 19...Qd8+= 20.Rc3 b6 21.Ba3 Rc3 22.Qc3 Rc8 23.Qb2 Nfe4 24.Ne4 fe4 25.Be2 Nc4 26.Bc4 Rc4 27.Bf8 Qf8 28.Ra1 Qc8 29.g3 (29.Qb1 Rc2=) 29...Rc2 30.Qa3 Qc3 31.Qc3 Rc3 32.Kf1 f6 33.Ke2 (33.h3=+) 33...e5 (33...Rc2 34.Ke1-/+) 34.de5 (34.Rd1!? Rc2 35.Ke1 ed4 36.Rd4 Rc1 37.Kd2=) 34...fe5 35.Rd1 Rc5 36.f4 Kf7 (36...ef3 37.Kf3 Kf7 38.g4=+) ½–½. Machalitza,Marvin – Graf,Lucas (1780), TCh–GER Junior U20, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5 7.Be2 Nbd7)

8.0-0 Ne4 9.c4 c6 10.Qb3 a5 (10...Ndf6 11.b5=) 11.cd5= a4 12.Qa3 Nd2 13.Nd2 cd5 14.Rac1 e5 15.de5 Ne5 16.Rfd1 Qe7 17.Bd4 (17.Nf3 Rfd8 18.Ne5 Be5+=) 17...Rfc8= 18.Qb2 (18.h3 Bf6=) 18...Bd3 19.Kf1 (19.Bd3 Nd3 20.Rc8 Rc8+=) 19...Qe6 20.h3 a3 (20...Qe8 21.b5=) 21.Qb3= Be2 22.Ke2 Nc4 23.Bg7 Kg7 24.Nc4 dc4 (24...Rc4 25.Qd3=) 25.Qc3 Kg8 26.Rd2 b5 27.Rcd1 Qe8 28.Rd5 Rd8 (28...Rab8 29.f4+=) 29.Rd8 (29.Qe5!? Rd5 30.Qe8 (worse is 30.Qd5 Rb8=) 30...Re8 31.Rd5+=) 29...Rd8= 30.Rd8 Qd8 31.Qa3 Qd5 32.f3 Qg5 33.Qa8 Kg7 34.f4 Qf6 35.Qd5 Qb2 36.Kf3 Qb4 37.Qe5 Kg8 38.Qb8 Kg7 (38...Qf8 39.Qb5 Qc8 40.Qb1=) 39.Qe5 Kg8 40.Qb8 Kg7 (40...Qf8 41.Qb5 Qc8 42.Qb1=) 41.Ke4 ½–½. Tologontegin,Semetery (2380) – Khusenkhojaev,Muhammad (2400), Tehran IRI, ECO Cup, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Bf5)

8.0-0 Ne4 9.Re1 Ndf6 10.c4 Nd2 11.Nd2 c6 12.Qb3 Ne4 13.Red1 a6 14.a4 dc4 15.Bc4 Nd6 16.Be2 Qd7 17.Bf3 Bg4 18.Ra2 (18.d5 Bb2 19.dc6 bc6 20.Qb2 a5+=) 18...Bf3 19.Nf3 Qg4 (19...Rfd8 20.Raa1=) 20.h3 Qh5 21.Ba3 Ne4 22.Rc2 (better is 22.Qd3!? Qd5 23.Rc2=) 22...Ng5-/+ 23.Ng5 (better is 23.e4-/+) 23...Qg5?? (better is 23...Qd1 24.Kh2 h6–+) 24.d5 cd5 (24...Rfd8 25.Rcd2 cd5 26.Rd5 Rd5 27.Rd5=) 25.Rd5+= Qf6 (25...Qh4 26.Bb2+=) 26.Rd7 Rab8 27.Rcc7 Qe5 (27...e6 28.b5 Rfd8 29.Bd6+=) 28.Rb7 (better is 28.Re7!? Qa1 29.Bc1+–) 28...Rb7+= 29.Rb7 Qa1 30.Kh2 Be5 31.f4 Bd6 (31...Bf6 32.Rc7 Qe1 33.Qd3+/-) 32.Bb2 Qb1 33.Qc3 f6 1–0. Ruhaan,Mahindru – Petkov,Momchil, Al–Ain UAE, World Ch Boys U08, 2013. (=1.d4 d5 2.Nf3 Nf6 3.e3 g6 4.b4 Bg7 5.Nbd2 0-0 6.Bb2 Bf5)

8.c4 a5 9.a3 c6 10.0-0 Ne4 11.Nh4 ab4 (11...Be6 12.Ne4 de4 13.f4=+) 12.ab4 (12.Nf5!? ba3 13.Ne4 gf5 14.Ra3 Ra3 15.Ba3 de4 16.Qd2=) 12...Ra1= 13.Ba1 Qb6 (better 13...Nd2!? 14.Qd2 Be6=) 14.Nf5+= gf5 15.Ne4 fe4 16.Qa4 Qc7 17.c5 b5 18.cb6 Nb6 19.Qc2 Qd6 20.Qc5 (20.Rb1!?+=) 20...Qc5= 21.dc5 Nd7 22.Bg7 Kg7 23.Rc1 Ne5 24.b5 cb5 25.Bb5 Rc8 26.Kf1 Kf6 27.Rc2 e6 28.Ke2 Ke7 29.f3 f5 30.f4 Nd7 Attacking the isolated pawn on c5 31.Bd7 Kd7 32.Kd2 Ra8 33.Rb2 Kc6 34.Rb6 (34.Rc2 Ra1=+) 34...Kc5-/+ 35.Re6? (35.Rb2!?-/+) 35...Ra2–+ 36.Kc3 (36.Ke1 Kc4 37.Rb6 Rg2–+) 36...Re2 37.Re5? (37.Rh6 Re3 38.Kd2–+) 37...Re3 38.Kd2 Ra3 39.Rf5 (39.Ke2 Kc4 40.Rf5 d4–+) 39...Kd4 40.Rg5 (40.g3 Ra2 41.Kd1 e3–+) 40...Ra2 41.Kd1 (41.Ke1 Ke3 42.Rg3 Kf4–+) 41...e3 42.g3 0–1. Korchagina,Alena (2210) – Matinian,N (2510), Polugaevsky Memorial, 2018. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5 7.Be2 Nbd7)

8.c4 c6 9.Qb3 e6 10.0-0 h6 11.Rad1 g5 12.Ne5 Ne4 13.Ne4 Be4 14.Nd7 Qd7 15.a4 Rfc8 16.Rc1 Bf8 17.b5 cb5 18.cb5 Qd6 19.Rc8 Rc8 20.Rc1 Rc1 21.Bc1 Qc7 22.Bd2 Bd6 23.h3 Bc2 24.Qa2 Qc8 25.a5 Kg7 26.Qb2 Bg6 27.Qc3 Qd8 28.Qb2 Bc7 29.Qa3 h5 30.Bb4+= Bb8 31.Qc3 g4 32.hg4+/- Qh4 33.Bd3 Qh2 34.Kf1 Bd3 35.Qd3 hg4 36.g3 Qh1 37.Ke2 Qa1 38.Qc2 Kf6 39.Qc5 Qa2 40.Ke1 Kf5 41.Qf8 Ke4 42.Qb8 Qb1= 43.Ke2 Qb2 44.Kf1+/- Qb4 45.Qf4 Kd3= 46.Qg4 Qb1 47.Kg2 Qb5 48.Qf3 f5 49.e4 Kd4 50.ef5 ef5 51.Qf5 Qa5-/+ 52.g4 Kc3 53.g5 Qc7 54.Qd5+= a5 55.g6 a4 56.Qf7 Qc8 57.Kg3 a3?? 58.g7+– 1–0. Van Gool,H (2160) – Vovk,Y (2565), HZ Open, Vlissingen NED, 2009.

7.Be2 Ne4

8.0-0 Nd2 9.Qd2 Nd7 10.c4 dc4 11.Bc4 Nb6 12.Bd3=.

8.0-0 Nd2 9.Qd2 Nd7 10.c4 dc4 11.Bc4 e5 12.Qc3 e4 13.Nd2 c6 14.a4 Nb6 15.Bb3 Rc8 16.Ba3 Re8 17.Qc2 Qd7 18.Qb2 a6 19.Rfc1 Nd5 20.Qa2 Bf8 21.b5 ab5 22.ab5 Ra8 23.bc6 bc6 24.Qb2 Bg7 25.Bc5 Qb7 26.Ra8 Ra8 27.Ra1 1–0. Sandipan,Chanda (2595) – Vovk,Andrey (2540), Cappelle la Grande FRA, 2012.

8.0-0 Nd2 9.Qd2 Nd7 10.c4 c6 11.a4 (11.cd5 cd5 12.Rac1 Nf6=) 11...Re8 (11...dc4 12.Bc4 Nb6 13.Be2=) 12.b5 (12.cd5 cd5 13.Rfc1 Nf6+=) 12...dc4 (12...Nf6 13.Rfc1+=) 13.bc6 bc6 14.Bc4 (14.Rfc1 c5+=) 14...e5= 15.Rfc1 e4 (15...Rb8 16.Qe2=) 16.Ne1+= Rb8 (16...Be6 17.Ba3+=) 17.Rab1 (17.Ba3 c5+=) 17...Bf8 (17...Nb6 18.Bb3+=) 18.Bf1 (18.Be2 Bb4 19.Bc3 Ba3+=) 18...Bb4= 19.Qc2 c5 (19...Qa5 20.Bc3 (worse is 20.Qc6 Be1 21.Re1 Rb2-/+) 20...Bc3 21.Rb8 Rb8 22.Qc3 Qa4 23.Ra1=) 20.Bb5 (20.dc5 Bc5 21.Qc3 f6+=) 20...cd4 21.Bd4 Bf8 (better is 21...a5!?=) 22.Ba7+/- Ra8 23.Bd4 (23.Qc7 Ba3 24.Rc3 Qe7+/-) 23...Qh4 (23...Bd6 24.Bc6 Rc8 25.Qd2+/-) 24.g3 (24.Qc7 Red8+/-) 24...Qh5 25.Ng2 (25.Qc7 Rad8+/-) 25...Bd6 (25...Ne5 26.Be5 (26.Be8 Nf3 27.Kf1 Nh2 28.Ke1 Nf3 29.Kf1 Re8–+) 26...Re5 27.Qc7+/-) 26.Qc6 (26.Qc6 Be5 27.Nf4 Bf4 28.ef4+/- (28.gf4?! Bh3 29.Bf1 Qg4 30.Kh1 Qf3 31.Kg1 Qg4 32.Kh1 Qf3 33.Kg1 Qg4=)) 1–0. Polyakov,Maxim (2405) – Terletsky,Oleg (2275), Nebesna Sotnya Mem Blitz UKR, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5)

8.0-0 Nd2 9.Nd2 e5 (9...Qd6 10.a3+=) 10.de5= Nc6 11.c4 (11.Nf3 Re8=) 11...Ne5 12.Qb3 dc4 13.Nc4 Be6 14.b5 Nc4 15.Bg7 Kg7 (15...Ne3 16.Qe3 Kg7 17.Bf3=) 16.Bc4+= Bc4 17.Qc4 a6 18.Rac1 ab5 19.Qb5 Qb8 20.Qe5 Kg8 21.Rc7 Ra2 22.Rfc1 Qd8 23.g3 b6 24.R7c6 Rd2 25.Qb5 The isolani on b6 becomes a target 25...Rd1 (25...Qd7 26.Qb6 Rd1 27.Rd1 Qd1 28.Kg2 Qd5 29.Kh3 Qh5 30.Kg2 Qd5 31.f3 Qd2 32.Kh3 Qd7 33.g4=) 26.Rd1 Qd1 27.Kg2 Rd8 28.Rb6 (28.Qb6?! Qd5 29.f3 Qd2 30.Kh3 Qd7 31.Kh4 Qe7 32.Kg4 Qd7 33.Kh4 Qe7 34.Kg4 Qd7 35.Kh4=) 28...Qd5 29.Qd5 Rd5 30.g4 (30.h4 Kg7+/-) 30...h5+= 31.h3 hg4 32.hg4 Kg7 33.Kf3 Ra5 34.Rd6 Ra2 35.g5 Rb2 36.Kg3 Re2 37.Kf3 Ra2 (37...Rb2 38.e4 Rb7+/-) 38.e4+/- Ra4 39.Kf4 Ra2 40.f3 Ra3 41.Rd7 Rb3 42.Kg4 Re3 43.Rd4 Ra3 44.f4 Ra1 45.Kf3 Ra3 46.Ke2 Ra1 47.Rd7 Ra4 48.Ke3 Ra1 49.Rc7 Re1 50.Kd4 (50.Kf3 Ra1+/-) 50...Rd1 (better is 50...Rf1!?=) 51.Ke5+/- Re1 52.Rc4 Rf1 53.Rd4 Rf2 54.f5 gf5 55.ef5 Rg2 56.Kf4 Rg1 57.Rd7 (57.Rd3!?+=) 57...Rf1= 58.Ke5 Re1 59.Kd6 Rf1 60.g6 Rf5 61.Rf7 Rf7 62.gf7 Kf7 ½–½. Khairullin,Ildar (2625) – Kokarev,Dmitry (2620), Khanty–Mansiysk RUS, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5)

8.0-0 Nd7 9.c4 c6 10.Qb3 Nd2 11.Nd2 dc4 12.Nc4 Nb6 13.Na5 Qc8 14.Rac1 Nd5 (14...Be4 15.Qa3 Bd5 16.Nb3+=) 15.f3 (15.b5!? Rb8 16.Qa3+/-) 15...Be6 16.Qa3 f5 (better 16...Qd7!?=) 17.b5+/- Bd7 18.bc6 bc6 19.Bc4 e6 20.e4 Nf6 21.d5! ed5 (21...cd5 22.Bd5 Combination; 21...ed5 22.ed5 Combination) 22.ed5 c5 (22...cd5!? 23.Bd5! Nd5 24.Rc8 Rfc8 25.Bg7 Kg7+-) 23.Nc6 Kh8 (23...Bc6 24.dc6 Kh8 25.Qc5+-) 24.Qc5 (24.Ba6 Qe8 25.Bb7 Bc6 26.Bc6 Nd7+-) 24...Rb8 25.Be5 Rb6 26.Bb3 Re8 (26...Bc6 27.dc6 h6 28.Rfd1+-) 27.Rfe1 (better 27.Qd4 Re5 28.Ne5+-) 27...Qa6?? (27...Nh5 28.Bg7 Ng7 29.Ne5 Qc5 30.Rc5+-) 28.Qc3 (better 28.Bf6 Qc8 29.Qc3 Re1 30.Re1 Qf8 31.Bg7 Qg7 32.Qg7 Kg7 33.Re7 Kh6 34.Rd7 a5 35.Na5 Rb5+-) 28...Nh5?? (28...Rf8+-) 29.Bg7 Ng7 30.Re8 Be8 31.Qf6 (31.Re1 Bf7 32.Qf6 Rb8 33.Qf7 Qb6 34.Kh1 Qf2+-) 31...h5? (31...Qa3 32.Re1 Bc6 33.dc6 Qc5 34.Kh1 Rb8+-) 32.Qf8 Kh7 33.Ne7 Rb3 (33...Qd3 34.Rd1 Qe3 35.Kh1 Bf7 36.Qf7 Qe5 37.Qg8 Kh6+-) 34.ab3 (34.Qg8 Kh6 35.f4 Qb6 36.Kh1 Qg1 37.Kg1 g5 38.Qh8) 34...Qb6+- 35.Kh1 Qe3 36.Rg1 (36.Qg8 Kh6 37.h4 Qc1 38.Kh2 Qc7 39.Kh3 Qg3 40.Kg3 f4 41.Kf2 g5 42.Qh8) 36...h4+- 37.Ng8 (better 37.Qg8 Kh6 38.Qh8 Kg5+-) 37...h3 (37...Nh5+-) 38.Nf6 Kh6 39.Ne8 (better 39.Qh8 Kg5 40.Qg7+-) 39...hg2 40.Rg2 Qe1 41.Rg1 Qf2 (41...Qe8 42.Qe8 Ne8+-) 42.Qg7 (42.Qh8) 42...Kh5 43.Qc3 (43.Qh7) 43...f4 (43...Qg1 44.Kg1 Kg5 45.Qd2 f4 46.h4 Kh6 47.Qc3 g5 48.Qf6 Kh5 49.Qg5) 44.Nf6 (44.Qh8) 44...Kh6 45.Qd3 (45.Ng4 Kh7 46.Qc7 Kg8 47.Qd8 Kh7 48.Qe7 Kg8 49.Nf6 Kh8 50.Qh7) 45...Qe3 (45...Qf3 46.Qf3 Kg7 47.Qe2 g5 48.Rg5 Kf6 49.Rg8 f3 50.Qe6) 46.Ne4 (46.Rg6) 46...Qd3-+ 47.Ng5 (better 47.Kg2 g5 48.Rc1 Qd5 49.Rc7-+) 47...Qf3?? (better 47...Qd5 48.b4 Qb3-+) 48.Nf3 Kh7 49.Rg5 (49.Rg5 Kh6 50.d6 Kh7 51.d7 Kg8 52.d8Q Kf7 53.Qd7 Kf8 54.Re5 g5 55.Re8; 49.d6 a6 50.d7 Kg7 51.d8Q Kf7 52.Qd7 Kf6 53.Rc1 g5 54.Rc6) 1-0. zumpili (2300) - Ptiphantom (2320), Rated Blitz game, lichess.org, 2019. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

8.0-0 Nd7 9.c4 Nd2 10.Nd2 e5 11.cd5 ed4 12.e4 d3 13.Bg7 de2 14.Qe2 Kg7 15.ef5 Nf6 (15...Re8 16.Qd3 Nf6 17.fg6 hg6 18.Nf3=) 16.fg6 hg6 17.Nf3 Nd5 18.Qe5 Kg8 19.Rfd1 c6 20.b5 Re8 21.Qd4 Qb6 22.bc6 bc6 23.Rac1 Rad8 24.h3 Qd4 25.Rd4 Rc8 26.Ra4 Rc7 27.Nd4 The isolani on c6 becomes a target 27...Re4 28.Rac4 Nf4 (28...c5 29.Nb5 Rc4 30.Rc4+=) 29.R1c2 (29.Rc6? Rc6 30.Rc6 Rd4–+) 29...c5 30.Nb5 Rc4 31.Rc4 Rb7 32.Rc5 Nd3 33.Rd5 a6 34.Nc3 Nf4 35.Rd2 Rc7 36.Ne4 Rc4 37.Ng5 f6 38.Rd8 Kg7 39.Rd7 Kg8 40.Nf3 (40.Nf7 Rc1 41.Kh2 Rc2+=) 40...Ra4 41.Rd2 Kf7 42.h4 Ke6 43.g3 Nd5 44.Nd4 Ke5 45.Nb3 Nc3 46.Nc1 Ne4 47.Rc2 Kd4 48.Kg2 Rc4? (better is 48...Nc3+/-) 49.Ne2+– Kd3 50.Rc4 Kc4 51.Kf3 Nd6 (51...Nd2 52.Kg4 Ne4 53.Nf4+–) 52.Nf4 Kb4?? (better is 52...g5 53.Ne6 gh4 54.gh4 Nf7+–) 53.Ng6 Ka3 (53...Nf7 54.Kf4 Nh6+–) 54.Kf4 Ka2 (54...Nf7 55.Kf5 a5 56.h5 Ka2 57.Kf6+–) 55.h5 Nf7 56.Kf5 a5 (56...Nh6 57.Kf6 a5 58.g4+–) 57.Kf6 Nh6 (57...Nh8 58.Nh8 a4 59.h6+–) 58.g4! Ng4 (58...a4 59.g5 a3 60.gh6 Kb3+–) 59.Kg5 Nf2 60.Kf5 a4 61.h6 a3 62.h7 Kb1 63.h8Q a2 64.Qb8 (64.Qb8 Kc1 65.Qc7 Kb2 66.Qb6 Ka3 67.Qd4+– (67.Qf2?! a1Q+–)) 1–0. Zherebukh,Yaroslav (2625) – Kiewra,Keaton F (2390), Rockville USA, 3rd Washington Open, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bf5)

8.0-0 Nd7 9.Ne4 Be4 10.Nd2 Bf5 11.c4 e5 12.c5 ed4 13.ed4 Re8 14.Nb3 Nf6 15.b5 h5 16.Bd3 Qc8 17.Qc2 Bd3 18.Qd3 Qe6 19.Na5 (19.Bc3 Qe4 20.Qd2 Qf5+=) 19...Qe2 (19...a6!?-/+) 20.Qb3+= b6 21.cb6 (21.Nc6 Ne4 22.Rae1 Qc4+=) 21...ab6-/+ 22.Nc6 Ne4 23.Bc1 Nd6 (23...Qc4 24.Bf4 Nc3 25.Bc7 Ne2 26.Kh1 Nd4 27.Nd4 Qc7 28.Rac1-/+ (28.Qd5? Rad8 29.Qc6 Qe7–+)) 24.Qd5 (24.a4 Nf5 25.Qd5 Nd4-/+) 24...Qb5 25.Qb5 (25.Ne7 Kf8 26.a4 Qc4-/+) 25...Nb5-/+ 26.Be3 Ra4 (26...Re6 27.Rfc1 Ra3 28.Kf1-/+) 27.Rfc1 Nd4 (27...Ra3 28.Kf1-/+) 28.Nd4 Bd4 (worse is 28...Rd4 29.Bd4 Bd4 30.Re1=) 29.Bd4 Rd4 30.Rc7 Re2 31.a3 Rdd2 32.Rf1 Rd3 33.a4 Rd4 34.Rb7 Rb4 35.g3 Ra2 36.Kg2 Kg7 37.h4 Raa4 38.Rc1 Ra5 39.Rc6 Attacks the isolani on b6 39...Rab5 40.f4 Rb2 41.Kh3 Rb1 42.Rcc7 Rf5 43.Rd7 Rb2 44.Rdc7 b5 45.Rd7 Kg8 (45...Re2 46.Ra7+=) 46.Rd8 Kg7 47.Rdd7 Rb1 48.Kg2 Rf6 49.Rdc7 Rb3 50.Rd7 Rf5 51.Rdc7 Rb2 52.Kh3 Rf6 (52...Ra2 53.Re7+=) 53.Rd7 Rb1 54.Kg2 b4 (54...Rf5 55.Re7+=) 55.Rdc7 Rb2 56.Kh3 Rb1 57.Rc4 Attacking the isolated pawn on b4 57...b3 58.Rcb4 Rd6 59.Rb3 Rb3 60.Rb3 ½–½. Saptarshi,R (2445) – Ramnath,B (2405), 13th Parsvnath Open, 2015. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Bf5)

6.e3 Bg4

7.c4 dc4 8.Bc4 Nc6 9.a3 e6 10.0-0 a6 11.Rc1 Ne7 (11...Bf5 12.h3+=) 12.Qc2 Bf3 (12...Nfd5 13.h3 Bf3 14.Nf3+/-) 13.Nf3+/- Ned5 (13...Qd6 14.e4 Qf4 15.Rce1+/-) 14.Bd5 (14.e4 Nf4+/-) 14...Nd5+= 15.e4 Nf6 16.Qc7 Ne4 17.Qb7 Nd6 18.Qc6 Nb5 (18...a5 19.Bc3+=) 19.Rfd1 White plans d5 19...Bh6 (19...Qb8 20.Qe4+/-) 20.Rc5+– White prepares d5 20...Qb8 (better is 20...Bg7!?+–) 21.Ne5 Qd8 (21...Rc8 22.Qf3 Nd6 23.d5+–) 22.Nd7 (22.d5!? Bg7 23.a4 Na7 24.Qa6 ed5 25.Rdd5 Qb8+–) 22...Re8 23.d5 Bg7 24.Bg7 Kg7 25.d6 (25.a4 Na7 26.Qb7 ed5 27.Qd5 Re6+–) 25...Na3 26.Nb6 Rb8 27.d7 Rf8 28.Nc8 Rb4 29.Qa6 Nb5 (29...Rb3 30.Qa4 Rb7+–) 30.Rb5 Qd7 (30...Rb5 31.Qb5 Qc7+–) 31.Rd7 (31.Rd7 Rb5 32.Qb5 Rc8 33.Rf7 Kf7 34.Qd7 Kf6 35.Qc8+–) 1–0. Srienz,Christian (2235) – Semenova,Irina (2160), 15. Marienbad Open, 2016. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2 Bg4)

7.c4 e6 8.Qb3 Nbd7 9.a4 a5 10.c5 c6 11.Ne5 Bh5 12.Nd3 (12.h3 g5=) 12...g5 13.h4 gh4 (13...g4!?=) 14.Rh4 Bg6 15.b5 e5 16.Ne5 (16.Rh1 e4 17.Nf4 Bf5+/-) 16...Ne5 17.de5 Nd7 18.g3 Nc5 19.Qa3 Ne6 20.f4 (20.Rc1 Rc8=) 20...Re8 21.Qc3 Rc8 22.b6 (22.bc6!? Rc6 23.Qb3=+) 22...Qb6-/+ 23.Qb3 (23.g4 Bf8 24.Ba3 d4 25.ed4 Qd4 26.Qd4 Nd4 27.Bf8 Nc2 (27...Rf8?! 28.0-0-0=; 27...Kf8?! 28.Kf2=) 28.Kf2 Na1=+ (worse 28...Rf8 29.Rc1+=; worse 28...Kf8 29.Rb1+=)) 23...Qa7 24.g4 Nc5 25.Qa3 Nd3 26.Bd3 Qe3 27.Be2 Qf4 e5 becomes the focus of attention 28.Nf3 c5 (28...Be4 29.Kd1=+) 29.Kf2 d4 30.g5 (30.Bc1 Qe4 31.g5 Qd5=) 30...Qf5 31.Rd1 Be5 32.Bd3 (32.Bb5 Bg3 33.Kg3 Re3 34.Qe3 de3=) 32...Qd7 33.Bg6 (33.Bc1!?=+) 33...hg6-/+ 34.Ne5 Re5 35.Bc1 Rce8 36.Rdh1 Re2 37.Kg3 Qd6 38.Bf4 R8e3 39.Qe3 Re3 (39...de3?? 40.Rh8 Kg7 41.R1h7) 40.Kf2 Re2 41.Ke2 Qe6 42.Kf2 Qa2 43.Kf3 Qb3 (43...f6 44.gf6 Kf7 45.Re1 Qd5 46.Kg3 Kf6 47.Be5 Qe5 48.Re5 Ke5 49.Kf3+=) 44.Ke4 Qe6 45.Be5 Kf8 46.Rh8 Ke7 47.Rf1 Qc6 48.Kf4 Qg2 (48...Qa4 49.Rb1-+) 49.Bf6-/+ Kd7 (49...Kd6 50.Rfh1-/+) 50.Rfh1 Qf2 51.Kg4 d3 52.R1h7? (better 52.R1h2 Qe3 53.Rd8 Kc6 54.Rc8 Kd5 55.Rd8 Kc4 56.Rb2=+) 52...Qe2-+ 53.Kg3 d2 54.Rf7 (54.Rh1-+) 54...Kc6 55.Rc8 Kb6 56.Bd8 Ka7 57.Rf8 (57.Rf6 Qe1 58.Kg2 Qe4 59.Kg3 Qe5 60.Kh3 Qf6 61.Bf6-+) 57...Qe3 58.Kg2 Qe4 59.Kg3 Qe5 60.Kg2 Qd5 61.Kf2 b6 (61...Qd4 62.Kg2 Qg4 63.Kf2 Qc8 64.Ke2 Qe6 65.Kd2 Qd6 66.Kc1 Qf8 67.Ba5 Qf1 68.Kc2 Qc4 69.Bc3 Qa4 70.Kb2 Qb5 71.Kc2 Qe2 72.Kb3-+) 62.Rc7?? (62.Bb6 Kb6 63.Rb8 Ka7 64.Ra8 Qa8 65.Ra8 Ka8 66.Ke2-+) 62...Ka6 63.Rff7 Qf7!! (63...Qf7 64.Rf7 d1Q-+) 0-1. Zimina,O (2375) - Lagarde,Max (2655), 22nd Trieste Open, 2020. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 c6 8.a4 Re8 9.0-0 Nbd7 10.Re1 Bf3 11.Nf3 Ne4 12.Bf1 Qb6 13.c3 a5 14.b5 Rad8 15.c4 dc4 16.Bc4 c5 17.Qb3 e6 18.Rad1 cd4 19.ed4 Nd6 20.Bf1 Nf6 21.Ne5 Nd5 22.g3 Nf5 23.g4 Nfe7 (23...Nd6 24.Ba3=) 24.Nc4 Qc7 25.Bc1 Nb6 26.Re4 Nc4 27.Bc4 Nd5 28.Bd5 ed5 29.Re8 Re8 30.Be3 (30.Qd5!? Qc2 31.Rf1=) 30...Qd7+= 31.f3 h5 32.h3 (32.gh5 gh5 33.Qd3 Qh3=) 32...hg4+= 33.hg4 Rc8 34.Bf4 Qe6 35.Kf2 Rc4 36.Be3 Qd6 37.f4? (37.Ke1!?-/+) 37...Qe6 (37...Bd4 38.Rd4 Rd4 39.Bd4 Qf4 40.Ke1 Qd4 41.Qg3–+) 38.g5 Qe4 (38...Qh3 39.Qd3–+) 39.Rd3 (39.Kg3!?-/+) 39...Bd4–+ 40.Bd4 (40.Rd4 Rd4 41.Bd4 Qf4 (41...Qd4?! 42.Kf3-/+) 42.Ke2 Qd4–+ (42...Qg5 43.Qf3+/-)) 40...Rd4 (better is 40...Qf4 41.Ke2 Rd4 42.Rd4 Qd4–+) 41.Rd4-/+ Qd4 (41...Qd4 42.Kf3 f5 43.gf6 Kf7-/+) 0–1. Bezukladov,OD – Kanygin,Nikolai N, Alekhine op Moscow, 1996. (=1.d4 d5 2.b4 g6 3.Bb2 Bg7 4.Nf3 Nf6 5.e3 0-0 6.Nbd2 Bg4)

7.Be2 c6 8.h3 Bf3 9.Nf3 Nbd7 10.c4 Re8 11.0-0 dc4 12.Bc4 Ne4 13.Qc2 Ndf6 0–1. toga (2265) – rhand (2300), net–chess.com, 2009.

7.Be2 Qd6 8.a3=.

7.Be2 Qd7 8.0-0 (8.c4 Qd6=) 8...Nc6 (8...Qd6 9.a3=) 9.a3 (9.b5 Na5+=) 9…Bf3 (9...Bf3 10.Nf3 a6+=; 9...a5 10.b5 Na7 11.c4+=). willow27 – carlosfandangos, ChessWorld.net, 2007.

7.Be2 c6 8.0-0 Nbd7 9.h3 Bf3 10.Nf3 b5 11.a4 a6 12.Ne5 Qc7 13.Bd3 Nb6 14.a5 Nc4 15.Bc4 bc4 16.c3 Ne4 17.f4 Be5 18.de5 (18.fe5 f6=+) 18...f6 19.Qd4 (19.ef6 Rf6 20.Qd4 Rb8=+) 19...Ng3 20.Rfe1 fe5 21.fe5 Rf1 (21...e6!?-/+) 22.Rf1=+ Ne2 23.Kh2 Nd4 24.ed4 Qd7 25.Bc1 Rf8 (25...h5!?=+) 26.Bh6= Rf7 27.Rae1 Qe6 28.h4 (better 28.Rf7!? Kf7 29.Rf1 Ke8 30.Rf8 Kd7 31.Bg5+=) 28...Qg4=+ 29.g3 e6 (29...Rf5 30.Kg2=+) 30.Rf7=+ Kf7 31.Rf1 Ke7 32.Bf8 Ke8 33.Bd6 Qe2 34.Kg1 c5 35.bc5 (35.dc5 Qd3 36.Kg2 Kd7= (36...Qc3 37.c6 Qc2 38.Kh3 Qf5 39.Rf5 gf5 40.b5 ab5 41.c7 Kd7 42.a6 h6 43.a7 Ke8 44.c8Q Kf7 45.Qf8 Kg6 46.Qg8 Kh5 47.Qf7)) 35...Qe3 36.Kg2 Qc3?? (better 36...Kd7 37.Kh3 g5 (37...Qc3?! 38.Rb1=) 38.hg5 Qg5 39.Rf7 Kc6 40.Rc7 Kb5 41.Rb7 Ka5=+) 37.c6+- Qc2 38.Kh3 Qf5 39.Rf5 gf5 40.Bb4 Kd8 (40...h5 41.Kg2 Kd8 42.Kf3+-) 41.g4 fg4 42.Kg4 Kc7 43.Kg5 Kc6 44.Kf6 (better 44.Bd2 c3 45.Bc3+-) 44...Kb5 (44...Kd7 45.h5 c3 46.Bc3 Ke8+-) 45.Be1 Ka4 46.Ke6 Kb3 47.Kd5 c3 48.Bc3! Kc3 49.e6 (49.e6 h5 50.Kc5 Kd3 51.e7 Kc3 52.d5 Kd2 53.d6 Ke2 54.e8Q Kd2 55.d7 Kc2 56.Qe3 Kb2 57.d8Q Ka2 58.Qdd2 Kb1 59.Qee1) 1-0. Kuzubov,Y (2640) - Kollars,Dmitrij (2595), Titled Tuesday, 2021. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2)

7.Be2 Nbd7 8.0-0 a5 9.b5 Nb6 10.a4 Re8 11.h3 Bf5 12.c4 dc4 13.Nc4 Nbd5 14.Bd3 Nb4 (14...Bd3 15.Qd3 c6 16.Nfe5+=) 15.Bf5+/- gf5 16.Ba3 Nbd5 17.Qe1 b6 18.Nce5 Ne4 19.Rc1 e6 20.g3 Be5 21.Ne5 Qg5 22.Kh2 f6 23.Nd3 Qh6 24.f4 Kf7 25.Nf2 Rg8 26.Ne4 fe4 27.Qf2 ½–½. Yaksin,Oleg – Urjubdshzirov,Erdni (2235), RUS–ch U12 Russia, 2004. (=1.d4 Nf6 2.Nf3 g6 3.b4 d5 4.e3 Bg7 5.Bb2 0-0 6.Nbd2 Bg4)

7.Be2 Nbd7 8.h3 Bf5 9.c4 c6 (9...dc4 10.Nc4 Nb6 11.0-0=) 10.Qb3 (10.g4 Be6=) 10...a6 (10...dc4 11.Nc4 Be6 12.Qa3=) 11.cd5 cd5 12.g4 Be4 (12...Be6 13.g5 Ne4 14.h4=) 13.g5 (13.Ne4!? de4 14.Nd2+/-) 13...Ne8= 14.Ne4 (14.Rc1 Nd6=) 14...de4 15.Nd2 Nd6 16.h4 (16.f3 e5 17.fe4 Qg5=) 16...e6 (16...e5 17.de5 Ne5 18.Rd1=) 17.a4 (17.b5 e5+=) 17...b5 (17...e5 18.de5 Ne5 19.Rd1=) 18.a5 (18.ab5 ab5 19.Ra8 Qa8+=) 18...Rc8= 19.Rc1 (19.Rd1 Qe7=) 19...Rc1 20.Bc1 Qe7 21.Rg1 f6 (21...e5 22.d5=) 22.Bg4 (22.h5 f5=) 22...f5+= 23.Bh3 (23.Be2 Nf7=) 23...Rc8 24.Bb2 Nc4 25.Bc3 (25.Nc4 bc4 26.Qc3 Bf8=) 25...Qd6 (25...e5 26.h5-/+) 26.Rh1 (26.h5 e5 27.Bf1 Qd5 28.hg6 hg6 29.Nc4 bc4-/+) 26...e5-/+ 27.Bf1 ed4 28.Nc4 bc4 29.Bc4 Kh8 30.ed4 Qc7 31.Ba6 Qc3 32.Qc3 Rc3 33.Kd2 Bd4 34.Bb7? Rc7 35.a6 Bf2 36.h5 Kg7 37.h6 Kf8 38.Rf1 e3 39.Ke2 Rc2 40.Kf3 Ne5 41.Kf4 e2 42.Rf2 Rc4 43.Ke5 e1Q 44.Kf6 Qf2 (44...Qf2 45.a7 Qb6 46.Ke5 Ke7 47.a8Q Qd4#; 44...Qe7#) 0–1. Talon,A (2035) – Ducarmon,R (2035), BEL, 1st Leaque, 2012. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bg4)

7.h3 Bc8 8.Bd3 Nbd7 9.b5 (9.0-0 Nb6+=) 9...a6= 10.a4 ab5 11.ab5 Ra1 12.Qa1 c6 13.bc6 bc6 14.Qa3 Re8 15.0-0 Qc7 16.Ra1 c5 17.Qa7 Qa7 18.Ra7 c4 19.Be2 Nb6 20.g4 Be6 21.Ne5 Rc8 (21...Nc8!? 22.Ra6 h5+=) 22.Ba3+– (worse 22.Re7 c3 23.Bc3 Rc3-/+) 22...Bf8 23.Be7 (23.Ndf3 Rb8 24.Ng5 Nc8+–) 23...Be7+= 24.Re7 c3 (24...Nfd7!? 25.Nd7 Nd7+=) 25.Ndf3 (better 25.Nb3 Nfd7 26.Nd7 Bd7 27.Nc5+–) 25...Nc4? (better 25...Nbd7 26.Nd7 Nd7+–) 26.Bc4+– dc4 27.Ng5 Nd5 28.Rb7 f6 (28...Rc7 29.Rb1+–) 29.Ne6 fe5 30.de5 Ra8 (30...Re8 31.Nd4 h5+–) 31.e4 Nb6 (31...Ne3 32.fe3 Re8 33.Ng5+–) 32.Rb6 Kf7 (32...Ra5 33.f4 Ra1 34.Kf2+–) 33.Nc7 Ra2 (33...Rc8 34.Rb7 Kf8+–) 34.e6 Ke7 35.Nd5 Ke8 (35...Kf8 36.e7 Kf7 37.Rf6 Ke8 38.Rf8 Kd7 39.e8Q Kd6 40.Qe7 Kc6 41.Rf6 Kb5 42.Qb4) 36.Rb8 1–0. Pierre – GuestIzmir, internet, 2020. (=1.b4 g6 2.Bb2 Nf6 3.d4 d5 4.Nf3 Bg7 5.e3 0-0 6.Nbd2 Bg4)

7.h3 Bf3

8.Qf3 Nbd7 9.c4 c6 10.Bd3 Re8 11.Qg3 e5 12.de5 (better is 12.0-0!?=) 12...Ne5-/+ 13.Be2 dc4 (13...Nc4 14.Nc4 dc4 15.Bf6 Qf6 16.0-0–+) 14.Rd1 (14.Be5!? Nh5 15.Qg4 Be5 16.0-0-0-/+) 14...Nd3-/+ 15.Bd3 cd3 16.Qh4 Ne4 17.Qd8 Rad8 (17...Red8 18.Bg7 Nd2 19.Bd4-/+) 18.Bg7 Kg7 19.Rc1 f5 20.Rc4 Rd6 21.Ne4 fe4 22.Kd2 Rd5 (22...Rf6 23.Rf1–+) 23.f3-/+ Rg5 24.Rh2 ef3 25.gf3 Rg3 26.Re4 Re4 27.fe4 Rf3 28.Kd3 Kf6 29.Ke2 Rg3 30.Kf2 Rg5 31.Kf3 Rh5 32.h4 Ke6 33.Kg4 Re5 34.Kf4 Rh5 35.Kg4 Re5 36.Kf4 Rh5 37.Kg3 Re5 38.Kf3 Rh5 39.Kg4 Re5 40.Kf3 Rh5 41.a3 g5-/+ 42.Rg2 gh4 43.Kg4 Rh6 44.Rh2 Ke5–+ 45.Kf3 h3 46.a4 b6 47.a5 ba5 48.ba5 a6 49.Kf2 Ke4 50.Ke2 c5 51.Kf2 c4 52.Kg1 Ke3 53.Rb2 c3 54.Rb8 c2 55.Rc8 Kd2 56.Rd8 Kc1 57.Rf8 Rh5 58.Rf7 Kb2 59.Rf2 Kb1 60.Rf1 c1Q 61.Rc1 Kc1 (61...Kc1 62.Kh2 h6 63.Kg3 h2 64.Kf3 h1Q 65.Ke3 Qh3 66.Ke4 Kd2 67.Kf4 Rf5 68.Ke4 Qd3) 0–1. Foisor,Mihaela Veronica (1940) – Kaya,Emel, EU–ch U12 Girls, 2005. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3 0-0 6.Nbd2)

8.Nf3 a6 9.Bd3=.

8.Nf3 Nc6 9.a3=.

8.Nf3 Qd6 9.a3 a5 10.b5 Nbd7 11.c4+= c5 12.bc6 bc6= 13.Be2 (13.Rb1 Rfb8+=) ½–½. Arkell,Keith C (2430) – Fernandes,An (2455), 4NCL, Birmingham ENG, 2002.

8.Nf3 Qd6 9.a3 Nbd7 10.c4 c6 (10...dc4 11.Bc4 Rfd8 12.0-0+=) 11.Bd3 dc4 12.Bc4 b5 13.Be2 a5 14.ba5 Ra5 15.0-0 Rfa8 16.Qb3 Nb6 (16...Nd5!?=) 17.Ne5+= Nfd5? (17...Nbd5 18.Bf3 e6 19.Rfc1+/-) 18.Rfc1 (better 18.e4+-) 18...Be5+= 19.de5 Qd7 20.Bd4 Na4 21.Qc2 (21.Rd1!?+=) 21...c5= 22.e4 (22.Bc5!? Nc5 23.Qc5=) 22...cd4-/+ 23.ed5 Qd5 (23...Nc3!?=+) 24.Bf3= Qe5 25.Re1 (25.Ba8 Ra8 26.Qc6 Rd8=) 25...Qd6 26.Ba8 Ra8 27.Qe2 Nc3 28.Qe7 Qe7 29.Re7 b4! 30.a4 (30.ab4 Ra4 Double attack (30...Ra1 Pinning; 30...Ra1 Deflection; 30...Ra1 Decoy)) 30...d3 (30...Rb8!? 31.Rae1 b3 32.a5-+) 31.Rb7 d2 (31...Rd8 32.Rb4 d2 33.Rc4 d1Q 34.Rd1 Rd1 35.Kh2-+) 32.Rd7 d1Q 33.Rdd1 Nd1 34.Rd1 Ra4 35.Rd8 Kg7 36.Rb8 Kf6 37.Rb7 (37.Kf1 h6-+) 37...Ke6 (37...Ra1 38.Kh2 Rb1 39.Rb6 Kg7 40.Kg3-+) 38.Kh2 h5 39.h4 Kd5 40.Rf7 (40.Kg3 f5 41.f3 Kc4 42.Rc7 Kd3 43.Rd7 Kc2 44.Rc7 Kb2-+) 40...b3 41.Rb7 Kc4 42.Kg3 Rb4 43.Rd7 b2 44.Rd1 b1Q 45.Rb1 Rb1 46.Kf4 Rb5 (46...Kd3 47.Kg5 Rb6 48.Kh6-+) 47.f3 (47.Ke4 Kc3 48.Ke3 Re5 49.Kf4 Kd4-+) 47...Kd3 48.g4 (48.Kg3 Kd4-+) 48…Ke2 (48...Ke2 49.Kg3 Rb3 50.gh5 gh5-+) 0-1. Xiong,Jeffery (2705) - Duda,J (2755), Speed Chess Invitational, 2020. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.e3 0-0 6.Bb2)

8.Nf3 Nbd7 9.c4 c6 10.a4 (10.a3 a5+=) 10...a5 (10...dc4 11.Bc4 Nb6 12.Bd3=) 11.b5 c5 (11...Rc8 12.Rc1=) 12.Be2 (12.Rc1 cd4 13.Bd4 Rc8+=) 12...Rc8 13.Rc1 cd4 (13...dc4 14.Rc4 Ne4 15.Qb1=) 14.ed4 (14.Bd4 dc4 15.0-0 Nb6+=) 14...dc4 (14...Bh6 15.Rc3=) 15.Bc4 Nb6 16.Bb3 Qd6 (16...Rc1 17.Bc1 Nbd5 18.0-0=) 17.0-0 Nfd5 (17...Nbd5 18.Qe1=) 18.Qd2 Qb4 (18...e6 19.Rfe1=) 19.Qb4+= Nb4 (worse is 19...ab4 20.a5 Nf4 21.ab6 Ne2 22.Kh2 Nc1 23.Rc1 Rc1 24.Bc1+–) 20.Ba3 N6d5 (20...e6 21.Bb4 ab4 22.a5+=) 21.Rc5 (21.Rfe1 Bf6+=) 21...Nc3 (21...Nf4 22.Rd1=) 22.Re1 (22.Rc8 Rc8 23.Re1 Kf8+=) 22...Bf6 (22...Rc5 23.dc5 e6 24.Ne5+=) 23.Ne5+/- Kg7 (23...Rc5 24.dc5 Be5 25.Re5+=) 24.b6 (24.Bb2 Rc5 25.dc5 Ncd5+/-) 24...Rc5 (24...Be5 25.Rce5 Nd3 26.Be7+/-) 25.dc5 Ncd5 (25...Rc8 26.Bb4 ab4 27.c6 Be5 28.cb7+/-) 26.Bd5 (26.Nc4 Ra8+/-) 26...Nd5+= 27.Nc4 Rb8 (27...Bc3 28.Rd1 Rd8 29.Rd3+/-) 28.Rd1 Nc3 29.Rd7 (29.Rd3 Na4 30.Na5+/-) 29...Na4+– 30.Na5 Ra8 31.Nc4 Nc5 32.Bc5 Ra1 33.Kh2 Rc1 34.Rd4 Bd4 35.Bd4 f6 36.Na5 Rd1 37.Be3 (37.Bc5 Rd7+/-) 37...Rd7+= 38.Nb3 Rd6 39.Kg3 Kf7 (39...e5 40.Na5 Rd7 41.Kf3+=) 40.Kf3 Ke8 (40...e6 41.g4+/-) 41.Na5 Rd7 42.Ke4 Kd8 (42...g5 43.g4+/-) 43.Bc5 (43.f4 h6+/-) 43...Kc8 44.Nc4 Kd8 45.Bd4 (45.g4 g5+/-) 45...Ke8 (45...e5 46.Bc5 Rd1 47.Be3+/-) 46.f4 Kf7 47.Na5 Ke8 (47...h6 48.Nc4+/-) 48.Nb3 (48.g4 h5+/-) 48...Rd6 49.Bc5 Rd1 (49...Re6 50.Kd3 Re1 51.Na5 Rd1 52.Ke4+/-) 50.Na5 (50.Bd4 Kd7+/-) 50...Kd7 51.Be3 (51.Bd4 Re1 52.Kd3 Kc8+/-) 51...Kc8 52.Nb3 (52.Nc4 h5+/-) 52...Kd7 (52...h5 53.Nd2+/-) 53.Nc5 (53.h4 f5 54.Kf3 Rd5+/-) 53...Kc6 54.Ne6 Kd7 55.Nc5 (55.Nd4 f5 56.Kf3 Rb1+/-) 55...Kc6+= 56.Nb3 Kb5 (56...Kd7 57.Kf3 h5+/-) 57.Nd2+/- Kc6 (57...Ra1 58.Nf3+/-) 58.Kf3 (58.Nf3 Kd6 59.g4 e6+/-) 58...Rh1 59.Kf2 (59.Ne4 Rf1 60.Ke2 Ra1+/-) 59...Rd1 (59...Kd5 60.Nf1+=) 60.g4 (60.Ne4 Rd3+/-) 60...Ra1 (60...Kd5 61.Nb3 Rb1 62.Na5=) 61.Nb3 (61.Ne4 Ra5+/-) 61...Ra2 (61...Ra3 62.Nd4 Kd5 63.Ne2+=) 62.Kf3 Kb5 (62...e5 63.fe5 fe5 64.Ke4+/-) 63.f5+/- gf5 64.gf5 Rh2 65.Kg3 Rh1 (65...Ra2 66.Nd2+/-) 66.Nd2 (66.h4 h5+/-) 66...Kc6 67.h4 (67.Nf3 Rd1+=) 67...Re1 (67...Kd5 68.Nb3+/-) 68.Bf2 (68.Kf3 Rh1 69.Bf2 Rh3 70.Kf4 Ra3+/-) 68...Ra1 (68...Re2 69.Nf3 Kd5 70.h5+=) 69.Ne4+/- Ra4 70.Kf3 Ra5 71.Ng3 Ra4 72.h5 Rh4 (72...Kd5 73.h6+/-) 73.Be3 Kd5 74.h6 (74.Bf4 Rh2+/-) 74...Rh3 (74...Ke5 75.Bc5+=) 75.Kg4 Rh2 76.Bf4 (76.Nh5 Rg2 77.Kf3 Rh2 78.Nf4 Ke5 79.Nd3 Kf5+/-) 76...Rb2+= 77.Bc7 Rb4 78.Kh3 Rb3 79.Kh4 (79.Kg2 Rb2 80.Kf3 Rb3 81.Kf4 Rb4 82.Ke3 Rb3 83.Ke2 Rb2 84.Ke1 Rb4+=) 79...Rb4 80.Kh5 Rb2 (80...e6 81.fe6 Ke6 82.Ne2+=) 81.Bd8 Rb3 82.Kg4 Rb4 83.Kh3 Kd6 (83...Rb2 84.Nh5 Ke5 85.Ng7+=) 84.Nh5 (84.Bc7 Kd5 85.Nh5 Rb1+/-) 84...Ke5+= 85.Ng7 Kf4 86.Bc7 Kg5 87.Ne6 Kf5 88.Nc5 e5 (88...Rb5 89.Nb7 Ke4+/-) 89.Nb7= Ke6 (better is 89...Kf4!=) 90.Nc5+/- Kd5 91.Nd7 Ke6 92.Nf8 Kf7 93.Nh7 Rb3 (93...Kg6 94.Nf8 Kh6 95.Nd7 Rb3 96.Kg4+–) 94.Kg2 (94.Kg4 Rb4 95.Kh5 e4+–) 94...e4 (better is 94...Rb5!?+/-) 95.Kf2 Kg6? (95...Rf3 96.Ke2 Rb3+–) 96.Nf8 (96.Nf8 Kh6 97.Ne6 Rb2 98.Ke3+–) 1–0. Sandipan,Chanda (2590) – Liu,Chang (2330), 1. Hainan Open, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.b4 Bg7 5.Bb2 0-0 6.e3 Bg4)

8.Nf3 Ne4 9.c4 c5 (9...e6 10.Bd3+=) 10.a3 (10.bc5 Nc5 11.cd5 Ne4+=) 10...Nc6 (10...b5 11.cb5 c4 12.Qc2=) 11.Qc2 (11.bc5 Nc5 12.cd5 Qd5+=) 11...cd4= 12.ed4 (12.cd5 de3 (worse is 12...Qd5 13.Bc4 Nb4 14.ab4+–) 13.Qe4 Bb2=) 12...Rc8 (12...e6 13.Be2=) 13.Bd3 White intends c5 13...f5 (13...e5 14.de5 Ng5 15.Ng5 Qg5 16.0-0 (16.cd5?? Ne5 17.Qe2 Nd3 18.Qd3 Bb2–+) 16...dc4 17.Bc4 Ne5 18.f4 Rc4 19.Qf2= (19.fg5?? Rc2 20.Be5 Be5–+)) 14.c5 e5 (14...e6 15.0-0+=) 15.Ne5 Ne5 16.de5 Qe7 17.0-0 (17.Rd1 Be5 18.Be5 Qe5=) 17...Be5 18.Be5 (18.Rfe1 Bb2 19.Qb2 Qg7 20.Qg7 Kg7=) 18...Qe5= 19.Rfe1 Qf6 (19...Rcd8 20.Rac1=) 20.Qb3 (20.Rac1 Rfd8+=) 20...Qf7 (20...Qd4 21.Ra2=) 21.Rad1 (21.Rac1 Rfe8+=) 21...Rfd8 22.Bb1 Exerts pressure on the isolated pawn (22.f3 Ng3+=) 22...b6= 23.cb6 (23.Ba2 bc5 24.Qd5 Qd5 25.Bd5 Kf8 26.Be4 Rd1 27.Rd1 fe4 28.bc5 Rc5=) 23...ab6 24.Ba2 (24.Be4 fe4 25.Rd4 Rd7=) 24...Nc3 25.Rd3 Na2 (25...Qc7 26.Kf1 Kh8 27.Qb2=) 26.Qa2+= d4 ½–½. Koellner,Ruben Gideon (2145) – Maiwald,Harald (2010), 9. Korbach Open, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5 4.e3 Bg7 5.b4 0-0 6.Bb2 Bg4)

5.Nbd2 d6

6.Rb1 c6 7.e3 Nbd7 8.Be2 Nd5 9.a3+= b5 10.c4 bc4 11.Nc4 Ba6 12.0-0 Bc4 13.Bc4+/- N7b6 14.Be2 Qd7 15.Qb3 Rfb8 16.Rfc1 a6 17.h3 e6 18.Bf1 Ne7 19.Bc3 Nbd5 20.Qa4 a5 21.b5 Nc3 22.Rc3 cb5 23.Bb5 Qd8 24.Rcb3 Rc8 25.Nd2 Rc2 26.R3b2 Rb2+= 27.Rb2 d5 28.Nb3 Bf8 29.Nc5 Nf5 30.Bc6 Rb8= 31.Rb8 Qb8 32.Nb7 Nd6 33.Qa5 Nb7 34.Qb6 Qd6 35.Qb7 Qa3 36.Be8 Qe7 37.Qe7 ½–½. Philips,Roy – Saeheng,B (2305), Olympiad, Bled SLO, 2002.

6.Rb1 Nbd7 7.e3 e6 8.Be2 Qe7 9.0-0 e5 10.b5 e4 11.Ne1 h5 12.c4 Re8 13.Ba3 (13.a4 a6=) 13...a6 14.ba6 Ra6 15.Rb3 Ra8 16.Nc2 c6 17.f3 Nf8 (17...ef3 18.Bf3 h4 19.Qe1+=) 18.fe4+/- Ne4 19.Ne4 Qe4 20.Bd6 Ra2 21.Bd3 Qg4 22.Qb1 Ra8 23.Rf3 Ne6 24.Rg3 Qh4 25.d5 (25.c5 Qd8+/-) 25...Nf8 26.Bf4 Qd8 27.e4 Nd7 28.Qf1 (better is 28.Be3!?+=) 28...Nc5+= 29.Rb1 Ne4 30.Be4 Re4 31.Bg5 (31.dc6 bc6 32.Rd3 Qf6–+) 31...Qe8 (31...Qc7!? 32.Qd3 cd5 33.cd5 Bf5–+) 32.Bf6 Ra2 33.Nb4 Rae2–+ 34.Nd3 Bf5 35.Bg7 Kg7 36.Qf5+= h4 37.Rg4 Rg4-/+ 38.Qg4 Qe3 39.Kf1 Rd2 40.Qf3 Qd3 41.Qd3 Rd3 42.Rb7 cd5-/+ 43.cd5 Rd5 44.h3 Rd2–+ 45.Rb4 g5 46.Rb6 f6 47.Ra6 Kg6 48.Ra5 Kf7 49.Kg1 Ke6 50.Rb5 Rd5 51.Rb6 Ke5 52.Kf2 f5 53.Ke3 Ra5 54.Rb4 Ra3 55.Kf2 Rd3 56.Kg1 Rd4 57.Rb8 g4 58.hg4 fg4 59.Kh2 Kf4 60.Rh8 h3 61.Rf8= Kg5 62.Rg8 Kf5 63.Rf8 Kg5 ½–½. Kirby,Patrick – Gelblum,Robert, Ottawa–ch reserve, 2004. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.Rb1 Nbd7 7.e3 Re8 8.Nc4 Nb6 9.Na5 Ne4 10.Bd3 d5 11.c4 c6 12.0-0 Rb8 13.Qc2 Bf5 14.Nh4 e6 15.Nf5 gf5 (15...ef5 16.a3+=) 16.f3 Nf6 (16...dc4 17.Nc4 Nf6 18.a4+=) 17.Rbe1 (17.c5!? Nbd7 18.Qd2+=) 17...dc4= 18.Nc4 Nfd5 19.a3 Nc4 20.Bc4 Qh4 21.e4+= Nb6 22.Bb3 Rbd8 23.ef5 Bd4= 24.Bd4 Qd4 25.Kh1 Nd5 26.fe6 Re6 27.Re6 fe6 28.Re1 Kh8 29.g3 Rf8 30.f4 Rf6 31.b5 c5 32.Qe2 Kg7 33.Bc2 Nc3+= 34.Qg4 Kf8 35.Qh4 Qd5 36.Kg1 Qd4 37.Kg2 Nd5 38.Kh3?? Qf2?? 39.Re5?? Nf4–+ 40.Kg4 Ng6 41.Bg6 Qf3 42.Kh3 Qf1 43.Kg4 Rg6 44.Kh5 Qf3 45.g4 Qf7 46.Qd8= Kg7 47.Rc5 Rh6 48.Kg5 Rg6 49.Kh5 ½–½. Arkell,Keith C (2505) – Ledger (2305), Hastings, 1996.

6.Rb1 Bf5 7.e3=.

6.e3 a5 7.a3 Bf5 8.Bd3 Bd3 9.cd3 ab4 10.ab4 Ra1 11.Qa1 Na6 12.Qa5 c5 13.Qd8 Rd8 14.bc5 dc5 15.Ke2 Nd5 16.Nb3 Ndb4 17.Rc1 cd4 18.Bd4 Na2 19.Rc4 b5 20.Rc6 N6b4 21.Rc7 Nd5 22.Ra7 Nab4 23.Bg7 Kg7 24.d4 Nc3 25.Ke1 Kf8 26.Nc5 Nbd5 27.Ne5 b4 28.Kd2 Rc8 29.Ned3 b3 30.Rb7 Ra8 31.Rb3 Ra2 32.Rb2 Rb2 33.Nb2 Nb5 34.Nba4 Nf6 35.h3 Nd6 36.Nc3 Nf5 37.g3 h5 38.h4 Ng4 39.Ke2 f6 40.Nb3 g5 41.hg5 fg5 42.Ne4 h4 43.gh4 gh4 44.Ng5 e5 45.d5 Nf6 46.e4 h3 47.Kf1 Nh4 48.Kg1 Ng4 49.Nh3 Nf6 50.Nd2 Ke7 51.Ng5 Ng6 52.Nc4 Nf4 53.Ne5 N6d5 54.ed5 Kd6 55.Ng4 Kd5 56.Kh2 Nd3 57.f3 Kd6 58.Kg3 Ke7 59.Kh4 Kf8?? 60.Ne4 Ne1= 61.f4 Ng2 62.Kg5 Nf4 63.Kf4 Ke7 64.Ke5 Kd7 65.Ne3 Kc6 66.Nd5 Kb5 67.Kd4 Kc6 68.Kc4 Kd7 69.Kc5 Ke6 70.Kd4 Kf5 ½–½. Bondar,Wladimir (2135) – Vasiliev,Mikhail (2025), Yuzhny op, 2009. (=1.d4 d6 2.Nf3 g6 3.b4 Bg7 4.Bb2 Nf6 5.e3 0-0 6.Nbd2)

6.e3 a5 7.b5 c5 8.a4 (8.dc5 dc5 9.h3 Ne8 10.Bg7 Ng7=) 8...Nbd7 (8...cd4 9.ed4 Ne8 10.Ng1+=) 9.Be2 (9.c4 cd4 10.ed4 Nh5=) 9...b6 (9...cd4 10.Nd4 e5 11.N4b3+=) 10.0-0 (10.c4 e6=) 10...Bb7 11.Qb1 (11.c4 e6=) 11...Qc7 12.c3 Rad8 13.Rd1 Rfe8 14.Qa2 e6 15.Rac1 h6 (15...Bf8 16.h4=) 16.Bd3 (16.h3 Rf8=) 16...Rc8 (16...e5 17.de5 de5 18.Ne1=) 17.Bb1 (17.Ne1 Kf8=) 17...Qb8 (17...Bf3 18.Nf3 Bf8 19.dc5 Nc5 20.Nd2=) 18.Re1 (18.Ne1 Rc7=) 18...Nf8 19.e4 N6d7 20.h3 Nh7 (20...h5 21.c4=) 21.Nh2 (21.Nf1 Qc7=) 21...cd4 22.cd4 Rc1 23.Rc1 Rc8 24.Rc8 Qc8 25.Nhf3 Nhf6 26.Bd3 Qc7 27.Kf1 Ne8 28.Ke2 (28.Ne1 Qd8=) 28...Bf8 29.Qb3 Bg7 30.g3 Qc8 31.Nh4 g5 (31...Nf8 32.g4=) 32.Nhf3 Nf8 33.h4 g4 34.Nh2 h5 35.Nhf1 Qa8 36.Qc2 Qc8 37.Qb1 (37.Qc8 Bc8 38.Nc4 Nd7=) 37...Qd8 38.Ne3 Qe7 39.Qc2 Qd8 40.Ng2 Bh6 41.Ne3 (41.Kf1=) 41...Qc8 (41...Nh7 42.Nd1=) 42.Nec4 (42.Qc8 Bc8 43.Ndc4+/-) 42...Nd7 43.Ne3 Qc2 44.Bc2 Kf8 45.Ba3 Kg8 46.Ndc4 Bf8 47.Bc1 Bh6 48.Bd2 Bg7 49.Bc3 Kf8 50.Bd3 Ke7 51.Ng2 d5 52.ed5 Bd5 53.Nf4 Bf3 54.Ke1 Nef6 55.Bd2 ½–½. Thieme,Hans (1985) – Oechler,Hans Erich (1925), Hessen–ch Seniors, 2002. (=1.Nf3 Nf6 2.e3 d6 3.d4 g6 4.b4 Bg7 5.Bb2 0-0 6.Nbd2)

6.e3 Nc6 7.b5 Nb8 8.a4 c6 9.c4 Nbd7 10.Qb3 cb5 11.cb5 b6 (11...a6 12.Bd3+=) 12.Rc1 Bb7 13.Be2 Re8 14.0-0 Nf8 15.Rfd1 Qd7 16.Nc4 Rac8 17.a5 ba5 18.Na5 Rc1 19.Rc1 Rc8 20.h3 (20.Rc8!? Bc8 21.Ng5+/-) 20...Rc1+= 21.Bc1 Qc7 22.Bd2 (22.Nb7 Qc1 23.Bd1 Qc7-/+) 22...Ne4 23.Nc4 (23.Qc4 Qd7+/-) 23...Nd2 24.Ncd2 Nd7 25.Qa2 Ba8 26.Ng5 (26.Bc4 a5+–) 26...e6+= 27.Ngf3 Nf6 28.Qa6 Nd5 29.Nc4 Nc3 30.Bf1 Bd5 31.Qd6 Nb5 32.Qb4 Bc4 33.Bc4 Nd6 34.Bd3 Bf8 35.Qb2 Qa5 36.Ne5 Qb6 37.Qa2 a5 38.Nd7 Qb4 39.Nf6 Kg7 40.Nd7 a4 41.Nc5 a3+= 42.Nb3 Nb5 43.d5? Nc3–+ 44.Qc2 a2 45.Qb2?? Qb3!!–+ 46.Qb3 a1Q 47.Kh2 Bd6 48.f4 e5 49.Qb6 Qa3 50.Qd8 ef4 51.Bf1 fe3 52.g3 e2 53.Be2 Ne2 (53...Ne2 54.Qh8 Kh8 55.Kg2 Qg3 56.Kf1 Qf3 57.Ke1 Bb4 58.Kd1 Qd3) 0–1. Zalewski,Andrzej – Romankiewicz,Romuald, IV Turniej Weekendowy Poland, 2013. (=1.b4 d6 2.Bb2 Nf6 3.e3 g6 4.d4 Bg7 5.Nd2 0-0 6.Ngf3)

6.e3 d5 7.Be2 Bg4 8.h3 Bf3 9.Nf3 c6 10.0-0 Nbd7 11.c4 Ne4 12.Nd2 f5 (12...Ndf6 13.Ne4 Ne4 14.Qc2=) 13.f3 (13.Ne4!? fe4 14.Qb3+/-) 13...Ng3= 14.Re1 Ne2 15.Qe2 e6 16.e4 Qh4 17.ed5 (17.cd5!? cd5 18.Rac1=) 17...Bd4+= 18.Bd4 Qd4 19.Kh1 ed5 20.Qe6 Rf7 21.Rad1 Nf8 22.Qe2 Qf6 23.cd5 cd5 24.Nb3 Rd8 25.Qe5 Kg7 26.Rd5 Rd5 27.Nd4 ½–½. Babo,M (1825) – Blanco Sanchez,J (2060), Queima das Fitas Open, 2015. (=1.d4 Nf6 2.Nf3 d6 3.e3 g6 4.b4 Bg7 5.Bb2 d5 6.Nbd2 0-0)

6.e3 Nfd7 7.Rb1 e5 8.Bc4 Nc6 9.b5 Ne7 10.c3 (10.de5!? Ne5 11.Ne5 de5 12.Nf3 Qd1 13.Rd1+=) 10...d5 11.Bb3 e4 12.Ng1 f5 13.c4 c6 14.Ne2 Nf6 15.g3 (15.bc6 bc6 16.Ba3 Be6+=) 15...g5 (15...cb5 16.cb5 Bd7 17.Ba3 Bb5 18.Be7 Qe7 19.Bd5 Nd5 20.Rb5=) 16.h4 h6 (16...g4!?=) 17.hg5+/- hg5 18.Ba3 Be6 19.Nc3 Kf7 20.bc6 bc6 21.cd5 cd5 22.Nb5 Qa5 23.Nd6 Kg6 24.Bc5 Rh8 25.Rf1 Rh2 26.Ba4 f4? 27.gf4 Bg4 28.Qc2 Bh3? 29.Bb4 Qd8 30.Rg1 g4 31.Nf3 Nf5 32.Ne5 Kh7 33.Nf5 g3 34.Ng3 Ng4 35.Ng4 Bg4 36.Ne4 Rc8 37.Nc5 Kg8 38.Rg4 Qf6 39.Rg1 1–0. Rickenbach,Jakob – Baumann,Tino, Zuerich op–B, 1989.

6.e3 Nfd7 7.g3 c5 8.c3 Nc6 9.b5 Na5 10.Bg2 Nb6 11.Rb1 Nbc4 12.Bc1 Bg4 13.Qe2 Nd2 14.Bd2 e5 15.h3 Bf5 16.e4 ed4 17.cd4 Be4! 18.Qe4 Re8 19.Ne5 de5?? (better is 19...Be5 20.0-0 Bd4-/+) 20.dc5+/- Rb8 21.Qb4 b6 22.c6 Qc7 23.0-0 Rbd8 24.Be3 Bf8 25.Qc3 Nb7 26.Bg5 Rd4 27.Rfd1 Rd1 28.Rd1 Nc5 29.Rd5 Bg7 30.Qd2 f6 31.Be3 Ne6?? 32.Rd7 Qb8 33.Bd5 Bf8 34.Be6 Re6 35.Qd5 Qe8 36.c7 Kh8 37.Rd8 Rd6 38.Re8 (38.Re8 Kg7 39.c8Q Rd5 40.Qb7 Kg8 41.Qd5 Kg7 42.Qd7 Kg8 43.Qe7 a6 44.Qf8; 38.Bh6 Re6 39.Qe6 Qe6 40.Rf8 Qg8 41.c8Q Qf8 42.Qf8) 1–0. Hartlaub,Marianne – Donnelly,Ruth A (2035), Wch Seniors (Women), 1992.

6.e3 e5 7.de5 Ng4 8.Bd3 Nc6 9.a3 (9.Rb1 A) worse 9...de5 10.h3 Nf6 11.a3+= (11.Be5 Ne5 12.Ne5 Nd5-+); B) 9...Nce5 10.0-0 Be6=) 9...Nce5 10.Rb1 a5 11.h3 Nd3 12.cd3 Ne5 13.Ne5 de5 (worse 13...Be5 14.b5=) 14.Nf3 ab4 15.ab4 Qd6 16.0-0 Rd8 17.d4 (17.Ra1 Ra1 18.Qa1 f6=+ (worse 18...Qb4 19.Be5 Be5 20.Ne5=)) 17...Qb4 (17...Bf5!? 18.Ra1 Qb4-+) 18.Qc2-/+ ed4 19.Bd4 Bd4?? (better 19...Qe7 20.Bg7 Kg7-/+) 20.Rb4+- (20.Rb4 Bb6 21.Rd1+-) 1-0. LittleCubes (1985) - Lance5500 (2635), lichess.org, 2020. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3)

6.e3 e5 7.de5 Ng4 (7...de5 8.Ne5 Ng4=) 8.Be2 (8.Nc4!?+=) 8...Nc6 (8...Ne5 9.c3=) 9.Rb1 (9.b5 Nce5 10.Bd4 Re8=) 9...Nge5 (worse is 9...de5 10.b5 Nb8 11.h3+/-) 10.0-0 (10.Ne5 Ne5 11.f4 Nd7=) 10...Qe7 (10...a6 11.a4=) 11.a3 Rd8 (11...a6 12.Nd4=) 12.Nd4 d5 (12...Re8 13.Re1=) 13.Re1 a5 (13...Nb8 14.c4+=) 14.b5+= Nd4 15.ed4 Nd7 16.c4 Nf6 (16...Qf6 17.Rc1+=) 17.Bd3 Qf8 (17...Be6 18.Qf3+=) 18.c5 Bg4 19.Qc2 Nh5 20.g3 (20.h3 Be6+=) 20...Bf6 (20...Re8 21.Re8 Re8 22.Qb3+=) 21.a4 (21.c6 b6+=) 21...Ng7+= 22.Nf1 (22.Kg2!?+=) 22...Ne6+= 23.Re6 (better is 23.c6!? b6 24.Ne3=) 23...Be6-/+ 24.Ne3 c6 (24...Re8 25.Qc3-/+) 25.Rd1 Qg7 26.Bc3 (26.Qc3 Re8-/+) 26...Rdc8 (26...Bd4 27.Bd4 Qd4 28.Bg6–+) 27.b6 (27.Bf1 Re8-/+) 27...Bg5 (27...Bh3 28.Be2-/+) 28.Qd2 (28.Be2 Re8-/+) 28...Bg4! 29.f4 (29.Ng4 Bd2 Pinning (29...Bd2 Deflection)) 29...Bd1–+ 30.fg5 Ba4 31.Ng4 (31.Qa2 Bb5 32.Bb5 cb5 33.Nd5-/+) 31...Re8 (better is 31...Bb3 32.Nf6 Kh8 33.Ba5 Rd8–+) 32.Nf6-/+ Kh8 33.Qf2? (33.Ne8 Re8 34.Qf4 Rf8-/+) 33...Bb3?? (33...Re6 34.Qf4–+) 34.Ba5? (better is 34.Ne8 Re8 35.Ba5-/+) 34...Re6–+ (34...Ra5?! 35.Ne8 Ra1 36.Kg2=) 35.Bc3 Rf6! 36.gf6 (36.Qf6 Qf6 Combination; 36.gf6 Qh6 Combination) 36...Qh6 37.Bd2 Qh3 38.Qf4 (38.Bf1 Qe6-/+) 38...Bc4–+ 39.Bc4 dc4 40.d5? (40.Qe4–+) 40...Qd7?? (better is 40...cd5!? 41.Bc3 Qh5–+) 41.dc6 (better is 41.Qh6!? Rg8 42.d6-/+) 41...Qc6–+ 42.Qd4 Kg8 (42...Qf3 43.Bc3–+) 43.Bf4 (43.Bc3 h6 44.Be1 Ra2–+) 43...Qe6 (43...Qf3 44.Bd2–+) 44.Kf2 (44.Be3 c3 45.Qc3 Rd8–+) 44...h5 (44...Ra2 45.Bd2 Qf5 46.Ke1–+) 45.Be3 Ra2 46.Kf3 Qf5 (46...g5 47.Bd2 Ra3 48.Bc3 Qf5 49.Ke2 Qc2 50.Qd2 Rc3 51.Qc2 Rc2 52.Ke3 Rh2 53.Kd4–+) 47.Qf4 Qd5 (47...Rh2?! 48.Qf5 gf5 49.c6 bc6 50.Bd4–+) 48.Qe4 Qd1 (48...Qd1 49.Kf4 Qg4 50.Ke5 Qe6 51.Kd4 Qf6 52.Qe5 Qf1 53.Qb8 Kh7–+) 0–1. Elorta,David (2325) – Fominyh,Alexander (2450), 10th Kuala Lumpur Malaysia, Open, 2013. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Nbd2 e5)

6.e3 e5 7.de5+= de5 8.Rb1 (8.Be5 Nc6 9.Bc3 Be6+=) 8...Bg4 (8...Be6 9.a3=) 9.h3 (9.Be5 Nc6 10.Bb2 Qe7+=) 9...Be6= 10.a3 (10.Ne5 Ba2 11.Ra1 Be6=) 10...Nbd7 (10...Nfd7 11.Bc4=) 11.Ng5 (11.Ne5 Ne5 12.Be5 Qe7+=) 11...Ba2 (11...Re8!?=) 12.Ra1+= Bd5 13.c4 (13.e4 h6 14.ed5 hg5+=) 13...Be6 14.Ne6 fe6 15.Be2 c5 16.0-0 Qc7 17.Qc2 Rad8 18.Rfd1 b6 (18...e4 19.Ne4 Ne4 20.Bg7 Nf2 21.Bf8 Nh3 22.gh3 Qg3 23.Kh1 Qh3 24.Kg1 Qg3 25.Kh1 Qh3 26.Kg1 Qg3 27.Kh1 Qh3=) 19.Nf3 (19.Ne4 Ne4 20.Qe4 Nf6 21.Qe5 Qe7+/-) 19...Nb8 (19...Bh6!?+/-) 20.Be5+– Qc6 21.Ng5 Nbd7 22.Rd6 Qc8 23.Bb2 Nb8 24.Re6 Rde8 25.Rd6 Rd8 26.Rad1 Rd6 27.Rd6 Nc6 28.Qd3 cb4 29.c5! Ne8?? 30.Qd5 Kh8 31.Nf7 Rf7 32.Qf7 ba3 33.Qf8 1–0. wiking – jpolgar99, internet, 2010.

6.e3 Bf5 7.Nb3 Nbd7 8.Bd3 Bg4 9.h3 Bf3 10.Qf3 c6 11.b5 Qc7 12.c4 Rae8 13.0-0 e5 14.e4 ed4 15.Bd4 Ne5 16.Be5 Re5 17.Qe3 Ne4 18.Qa7 Nc3 19.bc6 Qc6 20.Nd4 Qc5 21.Qc5 Rc5 22.Nb3 Re5 23.a4 Ra8 24.a5 Ne2 25.Be2+= Re2 26.Rad1 Ra6 27.Rd5 Kf8 28.Rb5 Re7 29.Rd1 Rc7 30.c5 Be5 31.g3 Ke7 32.Rd5 Rac6 33.Kg2 Bg7 34.g4 h6 35.Kg3 Ke6 36.cd6 Rd6 37.Rd6 Kd6 38.Rb6 Kd5 39.f3 Bc3 40.h4 Be1 41.Kh3 Bf2 42.Rb4= Re7 43.h5 Kc6 44.hg6 fg6 45.Kg2 Be3 46.f4 Rf7 47.Kf3 Bg1 48.Kg3 h5 49.gh5 gh5 50.Kh4 Bf2? 51.Kh5+/- Rf5 52.Kg6 Rb5 53.Nd4 Bd4 54.Rd4 Ra5 55.f5 b5? 56.f6+– Ra8 57.f7 Kc5 58.Re4 Rf8 59.Kg7 Rf7 60.Kf7 b4 61.Re8 b3 62.Ke6 Kc4 63.Rb8 Kc3 64.Kd5 ½–½. Kessner,Karel – Smistik,Milan, Brno, 1997.

6.e3 Bf5 7.Rc1=.

6.e3 Bf5 7.c4 b6 (7...Nc6 8.a3=+) 8.Qb3 (8.h3 Nc6 9.a3 d5=) 8...Nbd7 (8...c5 9.a3=) 9.Bd3 (9.Nh4!?+=) 9...Bd3= 10.Qd3 c5 11.b5 (11.bc5 bc5 12.0-0 Rb8=) 11...d5 (11...a6 12.ba6 Ra6 13.0-0=) 12.0-0 Rc8 13.Rfc1 Re8 14.a4 cd4 15.Nd4 (15.ed4 dc4 16.Rc4 Rc4 17.Nc4 Nc5=) 15...Nc5 (15...Ne5 16.Qe2=) 16.Qe2 Nfe4 17.Nc6 Rc6 18.Bg7 (18.bc6!? Bb2 19.Ne4 Ba1 20.Nc5 bc5 21.Ra1=) 18...Rc8 (18...Rd6 19.Bd4-/+) 19.Ne4=+ de4 20.Rd1 ½–½. Kuhnert,Steffen – Stork,Simon, 2rd Neckar op–C, 2008.

6.e3 Bf5 7.Be2 Nbd7 8.c4 e5 9.Nh4 Ne4 10.Nf5 gf5 11.Bd3 ed4 12.Bd4 Bd4 13.ed4 Qg5 14.Nf3 Qf6 15.0-0 Kh8 16.Qc2 c6 17.Be4 fe4 18.Qe4 Rae8 19.Qd3 Re7 20.Rfe1 Rfe8 21.Re7 Re7 22.h3 Nb6 23.Rb1 Qe6 24.d5 Qg6 25.Qg6 hg6 26.dc6 bc6 27.c5 dc5 28.bc5 Nd5 29.Nd4 Rc7 30.g3 Kg7 31.Kg2 Kf6 32.f4 Kg7 33.Kf3 Kf6 34.Rb3 Kg7 35.g4 Kf6 36.h4 Kg7 37.g5 Ne7 38.Ke4 Rd7 39.a4 f5 40.Ke3 Nd5 41.Kf3 Ne7 42.Nc2 Kf7 43.Ne3 Rd4 44.Rb7 Ra4 45.h5! Ke6 46.h6 Ra1 47.Kg2 Ra2 48.Kg1 Ra1 49.Nf1?? Ra3+/- 50.Kh2 Ra2 51.Kg3 Ra3 52.Kf2 Rh3? 53.Ra7 Nd5 54.Ra4 Nc3 55.Rc4 Ne4 56.Kg2 Rb3?? 57.Rc2+– Kf7 58.Ra2 Rb7 59.Ra8 Ke6 60.Rg8 Rb2 61.Kg1 Nf2 62.h7 Nh3 63.Kh1 Nf2 64.Kg2 Ng4 65.Kg1 1–0. Arkell,Keith C (2505) – Conlon,Joseph P (2040), Isle of Man op, 1995. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.e3 Bg4 7.Be2 Nbd7 8.c4 c6 9.Qb3 a5 10.a3 ab4 11.ab4 Qc7 12.0-0 e5 13.de5 Ne5 14.h3 Bf3 15.Nf3 Nfd7 16.Rfd1 Nf3 17.Bf3 Bb2 18.Qb2 Ne5 19.Be2 Qe7 20.b5 c5 21.Qd2 Ra1 22.Ra1 Qe6 23.Qc2 Rd8 24.Qe4 d5 25.cd5 Qd5 26.Qd5 Rd5 27.f4 Rd2 28.Kf1 Nd7 29.Ra7 b6 30.Rb7 Rd6 31.Bf3 c4 32.Rc7 Nc5 33.Rc6 Rc6 34.bc6 Na6 35.Ke1 Kf8 36.Kd2 Ke7 37.e4 Kd6 38.e5 Kc5 39.g4 h6 40.f5 gf5 (better is 40...g5!?+=) 41.gf5+= Nc7 42.Ke3 b5 43.Bh5 Nd5 44.Kd2 Kc6 45.Bf7 Nf4 46.f6 Kd7 47.Kc3 Ne6 48.h4 Nf4 49.Kd4 Ne6 50.Kd5 Nf4 51.Ke4 Ne6 52.Kd5 Nf4 53.Kd4 Ne6 54.Ke4 c3 55.Kd3 b4 56.Bg8 Nf4 57.Kc2 Ne6 58.Kc1 Nd4 59.Bf7 b3 60.Bh5 Ke6 61.Bg4 Kf7 (worse is 61...Ke5 62.f7 b2 63.Kb1=) 62.Bh5 Kf8 63.Kd1? (better is 63.Kb1!?+=) 63...Kg8–+ 64.Bg4?? b2 (64...b2 65.Be6 Kf8–+) 0–1. Geiser,Alexander – Jakob,Simon, Mendrisio op, 1989. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d6 5.Bb2 0-0 6.Nbd2)

6.e3 Bg4 7.Be2 Nbd7 8.h3 Bf3 9.Bf3+= (worse is 9.gf3 a5 10.b5 e5+=) 9...c6 10.c4 Qc7 11.0-0 e5 12.Qc2 Rfe8 13.a3 Rac8 14.de5 Ne5 15.Be2 d5 16.Rfd1 Re7 (16...Rcd8 17.cd5 Nd5 18.Nb3=) 17.Rac1 (17.cd5 Nd5 18.Ne4 Nd7+=) 17...Rce8 (17...Rd8 18.cd5 Nd5 19.Ne4+=) 18.cd5 Nd5 19.b5 Bh6? (better is 19...Rd8+=) 20.Ne4+– Ng4?? (better is 20...Qa5 21.Qb3 Nd7+–) 21.Bg4 Re4 22.Rd5! Re3 (22...cd5 23.Qc5 Double attack (23.Qc7 Pinning; 23.Qc7 Deflection; 23.Qc5 Decoy; 23.Qc7 Remove defender)) 23.fe3 Be3 24.Kh1 Qg3 (24...Bc1 25.Qc1 Qe7 26.bc6 bc6 27.Qc6 Rb8+–) 25.Qc3 1–0. terrier (2100) – lletram22 (1825), gameknot.com, 2014.

6.e3 Bg4 7.Be2 Nbd7 8.h3 Bf5 9.c4 c6 (9...Nb6 10.g4 Be6 11.Rc1=) 10.Nh4 (10.g4 Be4+=) 10...e5 (better is 10...Be6!?=) 11.Nf5 gf5 12.Qc2 e4 (12...ed4 13.Bd4 a5 14.b5+/-) 13.g4 fg4 (13...a5!?+=) 14.hg4+/- d5 (14...h6!? 15.Ne4 Ne4 16.Qe4 Qg5+/-) 15.g5+– Ne8 16.f4 (better is 16.cd5 cd5 17.Ne4+–) 16...Nd6 17.Bg4 f5 18.Be2 (18.gf6 Nf6 19.Bh3 Nf7+/-) 18...a5 (18...b5 19.c5 Nc4 20.Nc4 bc4 21.Bc3+/-) 19.Qb3 (19.cd5!? cd5 20.Qb3+/-) 19...a4 20.Qc2 b5 21.cd5 (21.c5!? Nc4 22.Nc4 bc4 23.a3+/-) 21...cd5= 22.Qc6 Nb6 23.Qc2 Rc8 24.Qd1 Nbc4 25.Bc4 Nc4 26.Nc4 Rc4 (26...bc4 27.Qh5 Rf7 28.Bc3+/-) 27.Qh5 Qe7? (better is 27...Rf7+=) 28.Qh7+– Kf7 29.Qh5 Ke6? 30.Qg6+– Kd7 31.a3 Rc6+= 32.Qh7 Rh8? 33.Qf5+– Qe6 34.Qe6 Ke6 35.Rh8 Bh8 36.Rc1 Rc1 37.Bc1 Kf5 38.Kf2 Kg4 39.Kg2 Bg7 40.Bd2 Bh8 41.Be1 Bg7 42.g6 Kf5+= 43.Kh3 Kg6 44.Kg4 Kf6 45.Bh4 Ke6 46.f5 Kf7 47.f6 Bf8= 48.Kf5 Bd6 49.Kg4 Bc7 50.Bg3 Bd8 51.Kf5 Bf6 52.Bf4 Bg7 53.Bg5 Bh8 54.Bf4 Bg7 55.Bg3 Bf6 Twofold repetition 56.Be5 Bh4 57.Bh8 Bg3 58.Be5= Bh4 59.Bf4 Bf6 60.Bc7 Bg7 61.Bd8 Bh8 62.Bg5 Bg7 63.Bf4 Bf6 64.Bd6 Bg7 65.Be5 Bf8 66.Bg3 ½–½. Porubszki,Georg (1905) – Bretscher,Robert (1690), Bad Woerishofen op, 2001. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Nbd2 d6 5.b4 0-0 6.Bb2)

6.e3 Bg4 7.h3 Bf5 8.c4+=.

6.e4 a5 7.b5 Nbd7 8.e5 de5 9.de5 Nd5 10.Ne4 c6 11.g3 (11.c4 Nf4=) 11...Qc7 12.c4 Ne5 13.Be5 Be5 14.cd5 Ba1 15.Qa1 cd5 16.Ned2 Bd7 17.Be2 Rac8 18.0-0 Rfd8 19.Kg2 f6 20.a4 e5 21.Nb3 b6 22.Nfd2 Be6 23.f3 (23.Rc1 Qd6 24.Rc8 Rc8 25.f4–+) 23...Qc3–+ 24.Qc3 Rc3 25.Rb1 Rdc8 26.Bd1 Kf7 27.Kf2 Ke7 28.Rb2 g5 29.g4 h5! 30.h3 (30.gh5 Rh8 Decoy) 30...Bf7 31.Nf1 d4 32.Ng3 hg4 33.hg4 Bg6 34.Nd2 Rc1 35.Bb3 Bc2 (35...R1c7 36.Nde4–+) 36.Nf5? (better is 36.Rc2!? R8c2 37.Nf5 Kd7 38.Bc2 Rc2 39.Ke1-/+) 36...Bf5–+ 37.gf5 Rh8 38.Ke2?? (better is 38.Be6–+) 38...Rh2 39.Kd3 Rc3 40.Ke4 Re2 (40...Re2 41.Kd5 Rc5) 0–1. Simonyi,Zoltan (2260) – Glatt,Gabor (2275), HUN–chT, 2007. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.e4 b6 7.Bd3+= Bb7 8.0-0 e6 9.c4 Nbd7 10.Qb3 c5 11.Rfe1 Qc7+= 12.Rac1 Rfd8 13.a4 (13.Rb1 cd4+= 0.28 (13...a5 14.a3 ab4 15.ab4 cd4 16.Bd4 Ne5=)) 13...a5 (13...cd4 14.Nd4 a5 15.b5=) 14.bc5 (14.dc5 dc5 15.b5 Ng4+=) 14...bc5 15.d5 e5 16.Nb1 (16.Rb1 Rdb8 17.Qd1 Bc8=) 16...Nb8 (16...Bh6 17.Rcd1+=) 17.Na3 Na6 18.Nb5 Qb6 (18...Qe7 19.Rb1+=) 19.Bc3 (19.Rb1 Bc8+=) 19...Nd7 (19...Nb4 20.Bd2+=) 20.Bd2 (20.Rb1 Rab8+/-) 20...Nb4 21.Bb1 h6 22.Nh4 Kh7 23.Qg3 Ba6 24.Nf3 Qb8 25.Qh4 Nb6+= 26.Ng5 Kg8 27.Nh3 g5-/+ 28.Ng5 hg5 29.Bg5 Bb5 30.cb5 f6 31.Bf6= Rd7 32.Rc3 Raa7 33.Rg3 Qf8 34.Ree3 Rf7?? 35.Ref3 Qe8? 36.Bg7 Rg7 37.Rh3 Rh7 38.Rfg3 Kf8 39.Qf6 Raf7 40.Qd6 Qe7 41.Qb6 Rh3 42.Rh3 Qf6 43.Qc5 Ke8 44.Qc8 Ke7 45.Rf3 Qg6 46.Qc7 (46.Qc7 Kf8 47.Qd8 Kg7 48.Rg3 Qg3 49.fg3+–) 1–0. Solano Lopez,Royner – Jimenez,Alo (2110), LXXII ch–CRC Fase, 2008.

6.e4 Nfd7 7.Rb1 e5 8.de5 Ne5 9.Be2 Nf3 10.Bf3 (10.gf3? Bb2 11.Rb2 Qf6–+) 10...Bb2 11.Rb2 Qf6 12.Qa1 Nc6 13.0-0 Be6 14.a3 Qc3 15.Nb3 f5 (15...Ne5 16.Be2 a5 17.ba5 Qc6+=) 16.ef5= Rf5 17.Bc6 bc6 (worse is 17...Qc6 18.Nd4 Qc4 19.Nf5 Bf5 20.Rb3+–) 18.Rbb1 Qa1 (worse is 18...Qc2 19.Nd4 Qa2 20.Nf5 Qa1 21.Nh6 Kg7 22.Ra1 Kh6 23.Rfe1+–) 19.Ra1 Bb3 20.cb3 a5 21.ba5 Rfa5 22.a4 Rb8 23.Ra3 Rb4 24.Re1 Kf7 25.Re3 c5 26.Kf1 c4 27.bc4 Rc4 28.Rh3 (28.Rf3 Ke6 29.Rae3 Kd5+=) 28...h5 (28...Kg8!? 29.Rae3 Raa4 30.Re8 Kf7-/+) 29.Rhf3+= Ke6 30.Rg3 g5 31.Rac3 Rc3 32.Rc3 c5 33.Ra3 c4 34.Ke2 Kd5 35.Rh3 (35.Kd1!?+=) 35...h4-/+ (35...Ra4?! 36.Rh5 Ra2 37.Ke3 Ra3 38.Ke2=) 36.f4 (36.Ra3!?-/+) 36...gf4–+ 37.Rh4 Ra4 38.Rf4 Ra2 39.Kf3?? (39.Ke3 Rg2 40.h4 Rg3 41.Kf2–+) 39...c3–+ 40.Ke3 (40.Kg3 c2 41.Rf1 Kc4–+) 40...Rg2 41.Kd3 c2 42.Rd4 Ke5 43.Re4 Kf5 44.Rc4 Rh2 45.Rc8 Ke5 46.Re8 Kd5 47.Rc8 Rh4 (47...Rh4–+) 0–1. Arkell,Keith C (2470) – Vocaturo,Daniele (2520), 2013. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Nbd2 0-0 5.Bb2 d6)

6.e4 Nfd7 7.Rb1 e5 8.de5 Ne5 9.Ne5 de5 10.Be2 Nc6 11.c3 Qh4 12.0-0 Be6 13.a3 Rad8 14.Qc2 f5 15.Rbd1 Kh8 16.Bc1 f4 17.Nf3 Qh6 18.b5 Ne7 19.Rd8 Rd8 20.Rd1 Rg8 21.c4 g5 22.Bb2 Ng6 23.Ne1 (23.h3 g4 24.hg4 Bg4+=) 23...g4+= 24.f3 g3 25.h3 Bh3 (25...Qh4!?+=) 26.gh3+/- Qh3 27.Bf1 Qh5 28.Bg2 (28.c5 Bf8 29.Bg2 c6+/-) 28...Qh2 29.Kf1 h5 30.Qd2 Bf6 31.Nd3 h4?! (31...Rd8 32.Qe2 h4 33.Ne5 Rd1 34.Qd1 Ne5 (34...Be5?? 35.Qd8 Kh7 36.Be5 Ne5 37.Qc7 Kg6 38.Qe5+–) 35.Be5 Be5=) 32.Ne5 Ne5 (32...h3 33.Ng6 Kh7 34.Qd7 Kh6 35.Qh3 Qh3 36.Bh3 Kg6 37.Bf5 Kg5+–) 33.Qf4 Bg7 34.Be5 Kh7 (34...Qg1 35.Kg1 Kh7 36.Qf5 Kh6 37.Bf4) 35.Qf5 Kh6 (35...Kh8 36.Qh5) 36.Bf4 1–0. Foisor,Sabina Francesca (2095) – Nemcova,Katerina, Wch U14 Girls, 2003. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.e4 Nfd7 7.Nc4 b5 8.Ncd2 a6 9.a4 ba4 10.Ra4 c5 11.bc5 dc5 12.c3 cd4 13.cd4 Nb6 14.Ra2 Nc6 15.d5 Nb4 16.Bg7 Kg7 (16...Na2? 17.Bf8 Kf8 18.Qa1+–) 17.Rb2 a5 18.Nc4 Kg8 19.Qd4 Rb8 20.Ne3 (worse is 20.Na5 Na4 21.Nc4 Nb2 22.Qb2 f5-/+) 20...Qc7 21.Rd2 Na4 22.Bc4+= Qc5 23.Qe5 Bg4?? 24.Ng4+– f6 25.Qe6 Kh8 26.d6 ed6 27.Nf6 Nc2 28.Rc2 Rb1 29.Ke2 Rh1 30.Qe7 (30.Qe7 Qf2 31.Kf2 Rf1 32.Kf1 Rf7 33.Qf7 Nc5 34.Qh7#) 1–0. Simonyi,Z (2235) – Todorovic,J (2360), 10th Battle of Senta, 2006.

6.e4 Nfd7 7.Bd3 c5 8.c3 (8.b5 Qb6 (8...a6 9.a4 cd4 10.Bd4 Bd4 11.Nd4 b6 12.0-0 Qc7 13.Bc4+=) 9.Nb3 Qc7 10.Qd2 Nb6 11.a4 Be6 12.Qc3 Nc4 13.Bc4+=; 8.a3 Nc6 9.c3 a6 10.Qe2 b5 11.0-0 c4 12.Bc2 Nf6 13.a4+=) 8...Nc6 (8...cb4 9.cb4 d5 10.e5 f6 11.Rc1 fe5 12.Qb3 e6 13.Ne5=; 8...cd4 9.cd4 d5 10.e5 f6 11.0-0 fe5 12.Qb3 Nc6 13.Qd5+=) 9.b5 Na5 10.0-0 e6 (10...Nb6 11.h3= (11.Rb1 c4 12.Be2 d5 13.Bc1=)) 0–1. Sulava,N (2425) – Jankovic,A (2555), 24th TCh–CRO Div 1a, 2015. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.e4 e5 7.de5 de5 8.Bc4 Qe7 9.0-0 Nh5 10.a4 (10.a3 Rd8=) 10...Rd8= 11.c3 Bh6 12.Qc2 Bg4 13.g3 (better 13.Bc1+=) 13...Qf6-/+ 14.Rfd1 Nc6 15.Kg2 Bd2 16.Nd2 Bd1 17.Rd1 Rd7 18.Nf3 Rd1 19.Qd1 Rd8 20.Qb3 Ng7 21.Bd5 Ne6 22.a5 a6 23.Bc1 Rd6 24.Be3 Ncd8 25.Bc5 (25.Bd4 Rd5 26.ed5 ed4 (26...Nd4?! 27.cd4 e4 28.Ne5=) 27.de6 Ne6 28.cd4 Nd4 29.Nd4 Qd4-/+) 25...Nc5 Black begins to deal mighty blows 26.bc5 Rd7 27.Bb7 Nb7 28.Qb7 Rd3 (28...Kg7 29.Qc8 Rd3 30.Ne1–+) 29.Ng1 Rc3 30.Qb8 Kg7 31.Qc7 g5 32.h3 h5 33.Qc8 Qg6 34.Qc7?? (better 34.Qb7 Rc5 35.Qb4–+) 34…Qe4 (34...Qe4 35.f3 Rc2 36.Kh1 Qe1 37.g4 Qg3 38.Qe5 Qe5 39.f4 Qe4 40.Nf3 Qf3 41.Kg1 Qd1) 0–1. Lomandong,Marc_Antoine (2035) – Martinovic,Sasa (2565), 43rd Olympiad, 2018. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

6.e4 e5 7.de5 de5 8.Bc4 Qe7!? 9.Qe2 Qb4=.

6.e4 e5 7.de5 de5 8.Bc4 Nh5 9.Be5+/- Be5 10.Ne5 a5 11.b5 Qd4 12.Nef3 Qc3 13.Rb1 a4 14.Qc1 Nf4 15.g3 Ne6 (15...Ng2 16.Kf1 Bh3 17.Qb2 Qc2 18.Kg1 (18.Qc2?! Ne3 19.Ke2 Nc2+/-) 18...Qb2 19.Rb2+–) 16.Qb2+– Qb2 17.Rb2 Nc5 18.0-0 Nbd7 19.a3 Nb6 20.Ba2 Bh3 21.Re1 Rad8 22.Nb1 h6 23.Nc3 Rfe8 24.Rb4 Kf8 25.Nd4 Rd7 26.f3 Red8 27.Nce2 Be6 28.Bb1 Bc4 29.c3 Nb3 30.Bc2 Be2 31.Ne2 Nd2 32.Kf2 Nbc4 33.Ra4+– Ne5 34.Nd4 c5 35.bc6! bc6 36.Re2 Ndc4 37.Nc6! Rc8 38.Ne5 Ne5 39.f4 Ng4 40.Kf3 h5 41.c4 Rd4 42.h3 Nf6 43.e5 Nd7 44.c5! Rd5 45.Bb3 Rdc5 46.Bf7! Ne5 47.Re5 Rc3 48.Re3 Kf7 49.Ra7 Kf6 50.Ra6 Kf7 51.Ra7 Kf6 52.Ra6 Kf7 53.Rd6 Rc1 54.Rd7 Kf6 55.Rd6 Kf7 56.Rb3 R8c7 57.g4 Rf1 58.Kg3 hg4 59.hg4 Rg1 60.Kh4 Rh1 61.Kg5 Rc5 62.f5 gf5 63.Rb7 Ke8 64.gf5 Rf1 65.Re6 Kf8 66.Kg6 Rc8 67.Reb6 Rg1 68.Kf6 Rh1 69.Rb8 Rh6 70.Ke5 Rb8 71.Rb8 Ke7 72.Rb7 Ke8 73.Ra7 Rb6 74.a4 Rc6 75.a5 Rc5 76.Kf6 Rc6 77.Kg7 Rc1 78.Ra8 Ke7 79.f6 Ke6 80.Re8 Kd7 81.f7 (81.f7 Rg1 82.Kf8+–) 1–0. Arkell,K (2430) – Ghasi,A (2365), Sunningdale ENG, IM–B Aug, 2011.

6.e4 e5 7.de5 Ng4 8.Rb1 Ne5= 9.Be2 Nbc6 10.b5 Nf3 11.Nf3 Bb2 12.Rb2 Qf6 13.Rb1 Ne5 14.Nd4 (14.0-0 Be6=) 14...Nd7 (14...Qh4 15.Bd3+=) 15.0-0= Nc5 16.f3 Bd7 (16...a6 17.ba6 b6 18.Nb5 Na6 19.Bc4=) 17.Qd2 Rae8 18.c4 (18.Rfd1 Re7=) 18...Qe5 19.Rfe1 Kh8 (19...f5 20.ef5 Bf5 21.f4 Qe3 22.Qe3 Re3 23.Nf5 Rf5 24.Bf3=) 20.Bf1 g5 21.Nb3 b6 22.Nc5 Qc5 23.Kh1 Qe5 24.a4 Re6 25.a5 Rfe8 26.ab6 ab6 27.Ra1 Rh6 28.h3 Be6 29.Red1 Kg7 30.Kg1 Rg6 31.Ra7 Rc8 32.Qd4 Qd4 33.Rd4 Kf6 34.Rd2 Ke7 35.Kf2 f6 36.Ke3 Rgg8 37.g3 Rgf8 38.Rh2 f5 39.ef5 Bf5 40.h4 gh4 41.Rh4+/- Kf6 42.g4 Bb1 43.f4 Rce8 44.Kf3 Re7 45.Rh2 Kg7 46.f5+/- h6 47.Ra1 Be4+= 48.Kf4 Re5 49.Kg3 Rfe8 50.Re1 Bb7 51.Re5 Re5 52.Ra2+/- Rc5 53.Ra7 Be4 54.Kf4 Bc2 55.Ra3 d5 56.cd5 Rd5 57.Rc3 Rc5 58.Rc5 bc5 59.Ke5 Bd1 60.f6 Kf8+= 61.Kf5 Bc2 62.Ke6+/- Bd1 63.Kd7 Bg4? 64.Kc7+– Bf3 65.b6 h5 66.Be2!! Be4 67.Bh5 c4 68.Bg6!! Bf3 69.Kd6 c3 70.Ke5 1–0. Arkell,Keith (2460) – Kotronias,V (2565), Classics GM, Gausdal NOR, 2002.

6.e4 Bg4 7.Bd3 Nbd7 (7...Nc6 8.a3 d5 9.e5=) 8.h3 Bf3 9.Nf3 (worse 9.gf3 Nh5-/+) 9...e5 10.de5 (10.0-0 ed4 11.Nd4 c5 12.bc5 Nc5=) 10...Nh5 11.Qd2 Ne5 12.Ne5 (12.Be5 Be5 13.Rb1 Nf4=) 12...de5 (12...Be5!? 13.Be5 de5=+) 13.g3= Qe7 14.a3 Rfd8 15.Qe2 (15.0-0 Bf6=) 15...Nf6 (15...a5 16.b5=) 16.Rd1 Nd7 17.0-0 Nf8 (17...Nb6 18.c3=) 18.c4 (18.Bc4!?+=) 18...Ne6=+ 19.c5 Nd4 20.Bd4 Rd4 21.f4 (21.Bc4 a5=) 21...a5 (21...ef4 22.Rf4 Rad8 23.Kg2-/+) 22.Bc4=+ ef4 23.Rf4 Rd1 24.Qd1 Rf8 25.Qd5 ab4 26.ab4 c6 27.Qd3 Be5 (27...Bf6 28.Kg2=+) 28.Rf3 Kg7 29.Kg2 f6 30.Qb3 (30.Qd2 Bc7=) 30...Rd8=+ 31.Rd3 Rd4 (31...Bd4 32.Be6=+) 32.Rd4= Bd4 33.Qd3 Qe5 34.Kf3 h5 35.h4 g5 36.hg5 fg5 37.Be6?? (37.Kg2 Qf6 38.Qf1 Qf1 39.Bf1 Kf6=) 37...h4 (better 37...Qe6 38.Qd4 Qf6 39.Ke3 Qd4 40.Kd4 Kf6-+) 38.gh4= gh4 39.Kg2 Qe6 40.Qd4 Kf7 41.e5 Qd5 42.Qd5 cd5 43.Kh3 d4 44.Kh4?? (better 44.b5=) 44...d3-+ 45.Kg3 d2 0-1. Reiluis (1905) - Lance5500 (2645), lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.b4 d6 4.Bb2 Bg7 5.Nbd2 0-0)

6.g3 b6 7.Bg2= Bb7 8.0-0 Nbd7 9.Re1 c5 10.c3 Rc8 11.e4 e5 12.bc5 bc5 13.de5 de5 14.Qb3 Nb6 (14...Rb8 15.Qc2=) 15.Bh3 Rc7 16.Rad1 Qe7 17.a4 Bc6 18.a5 Na4 19.Ba1 Rb7 20.Qc2 h5 21.Bf1 Ng4 22.Bc4 Rfb8 23.Bd5 Qf6 24.h3 Nh6 25.Ne5!+– Rb2 26.Bb2 Rb2 27.Qd3 Bb5 28.c4 Be8 29.Nef3 Qa6 30.e5 Kh7 31.Ng5 Kh8 32.e6 f5 33.Nf7 Kh7 34.Nf3 Qa5 35.N3g5 Kg8 36.e7 Nf7 37.Bf7 Bf7 38.Qd8 (38.Qd8 Qd8 39.Rd8 Be8 40.Re8 Bf8 41.ef8Q) 1–0. Poley,V (2335) – Lind,JO (2230), Salongernas IM, Stockholm SWE, 2009.

6.g3 Bg4 7.Bg2=.

6.e3 b6

7.b5 Bb7 8.a4 c5 9.a5 a6 10.Nc4 (10.dc5 dc5 11.Nb3 ba5 12.Nc5 Qd1 13.Rd1 Bf3 14.gf3 ab5 15.Bb5 Rc8=) 10...Nbd7 (10...ba5 11.Na5 Bd5 12.dc5 ab5 13.Nb3 Ra1 14.Qa1=+) 11.Nb6 (better 11.dc5!? bc5 12.b6=) 11...Nb6=+ 12.dc5 Nbd5 (12...Bf3!? 13.Qf3 Nbd5-/+) 13.c6= Bc8 14.c4 ab5 (14...Nc7 15.b6=) 15.cd5+= Ra5 16.Rb1 (16.Rc1 b4 17.Bc4 e5+=) 16...b4= 17.Bc4 e6 18.de6 fe6 19.0-0 Rc5 20.Qb3 d5 (worse 20...Rc6 21.Be6 Be6 22.Qe6 Kh8 23.Bf6 Qf6 24.Qf6 Bf6 25.Rb4+/-) 21.Bd3 Rc6 22.Qb4 Ba6 23.Qa4 Qa8 (23...Bd3!? 24.Qc6 Qe8 25.Qe8 Re8=) 24.Ra1+/- Bb7 25.Qb4 Qc8 26.Ra7 Rf7? (better 26...Rc7+/-) 27.Ne5+- Bf8 (27...Rfc7 28.Nc6 Bc6 29.Rc7 Qc7 30.Rc1+-) 28.Qh4 g5 (28...Nh5+-) 29.Qg5 Rg7 30.Qf6 Be7 31.Qg7! Kg7 32.Nc6 Bf6 33.Na5 (better 33.Rb1 Bb2 34.Rb2 Kf6 35.Rbb7 Qc6+-) 33...Bb2 34.Rb7 Kf6 35.Rb2 Qc3 36.Rb3 Qa5 37.Bh7 Qc7 38.Bd3 Qa7 39.g3 d4 40.ed4 Qd4 41.Be2 Qd2 42.Rf3 Ke7 43.Re3 Qd4 44.Kg2 Kf6 45.Kg1 Ke7 46.Bf3 Kf6 47.Kg2 e5 48.Kh1 (48.h4 Ke6+-) 48...Qc4 (48...Qb2 49.h4+-) 49.Rfe1 Qd4 50.Kg1 1-0. Fernandez,Dan (2475) - Ooi,Jayden (1795), 54th Begonia Open, 2020. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3)

7.b5 Bb7 8.Be2 Nbd7 9.0-0 Re8 10.a4 e5 (10...a6 11.Bc4=) 11.a5 ed4 12.Nd4 Rb8 13.ab6 ab6 14.Bf3 Qc8 15.Nc6 Ra8 16.Qe2 d5 (16...Ne5 17.Ra8 Ba8 18.Be5 de5 19.Qc4+=) 17.c4+/- dc4 18.Ra8 Ba8 19.Ra1 Bb7 (19...Bc6 20.Bc6 Rd8 21.Nc4+/-) 20.Qc4 Ne4? (better is 20...Nc5+/-) 21.Ne4+– (21.Be4?! Bb2 22.Ra7 Nc5+=) 21...Bb2 22.Ng5 Re6 (22...Kh8 23.Qf7 Bg7 24.Ra7+–) 23.Qe6! (23.Ne6?! Bc6 24.Ng5 Ne5+–) 23...fe6 (23...fe6 24.Ne7) 24.Ne7 Kf8 (24...Kg7 25.Nc8 Ba1 26.Bb7+–) 25.Nc8 Ba1 (25...Bf3 26.Ra2 (26.gf3?! Ba1 27.Ne6 Ke8+–; 26.Nf3?! Ba1 27.Ng5 Nc5+/-; 26.Ne6 Kf7 27.Ng5 Ke8+–) 26...Bb7 27.Ne6 Ke8 28.Nc7 Kd8 29.Nb6 (worse is 29.Rb2 Kc7 30.Na7 Nc5+–) 29...Nb6 30.Ne6 (30.Rb2?! Kc7 31.Rb4 Bd5+–) 30...Ke7 31.Nc5+– (31.Rb2?! Ke6 32.Ra2 Kd6+/-)) 26.Bb7 (26.Ne6!? Kf7 27.Nd8 Ke8 28.Nb7 Ne5+–) 26...Nc5 27.Bf3 (27.Nh7?! Kg7 28.Ng5 Bf6 29.Ne6 Ne6+–) 27...Ke8 (27...h6 28.Ne4+–) 28.Nh7 Kd7 29.Na7 Kd6 (29...Bg7 30.Bd1 Ke8 31.Bc2+–) 30.Ng5 (30.Nf8!? g5+–) 30...Bf6 31.Ne4 Ne4 (31...Ke7 32.Kf1+–) 32.Be4 Kc5 (32...g5 33.f4+–) 33.Bg6 1–0. Fernandez,Daniel Howard (2370) – Taylor,Adam C (2075), High Wycombe ENG, e2e4 Open, 2014.

7.c4 c5 8.bc5 bc5 9.d5 e6 10.Qc2 (10.de6 Be6 11.Bd3 Nc6=+) 10...ed5-/+ 11.cd5 Bf5 (better 11...Na6 12.a3 Rb8-/+) 12.e4?? (better 12.Bd3 Bd3 13.Qd3=) 12...Ne4!-+ 13.Bg7 (13.Ne4 Be4 Combination) 13...Kg7 (13...Ng3 14.Bf8 Bc2 15.fg3 Qf8 16.Rc1-+) 14.Qb2 (14.Bd3 Nd2 15.Qc3 Kg8 16.Nd2 Re8 17.Kf1 Bd3 18.Qd3 Qh4-+) 14...Qf6 (14...Nf6 15.Be2 Re8 16.Nc4-+) 15.Qf6 Nf6 16.Bc4 (16.0-0-0 Ng4 17.Re1 Nf2-+) 16...Re8 17.Kf1 Nbd7 18.h3 Nb6 19.Bb5 Red8 20.Bc6 (20.g4 Bd7 21.Bd7 Rd7-+ (worse 21...Nfd7 22.Ne4-+)) 20...Rab8 21.g4 Bd3 22.Kg2 Nbd5 23.g5 Nh5 24.Bd5 Nf4 25.Kg3 Nd5 26.Ne1 Bf5 27.Nef3 Nc3 28.Nh4 (28.Rhe1 Re8-+) 28...Bd3 29.Kf3 (29.Nhf3 Rb2-+) 29...Rb2 (better 29...Rb4 30.Ng2 Be2 31.Kg3 Rb2-+) 30.Ke3 (30.Rhe1-+) 30...c4 (better 30...Bb5 31.Nb3 Re8 32.Kf3 Bc6 33.Kg4-+) 31.Nhf3 (31.Rhc1 d5 32.Nb3 Re8 33.Kf3 Be4 34.Kg4 Ne2-+) 31...d5 (better 31...Ne2 32.Nh2 Re8 33.Kf3 Rd2-+) 32.Kd4 (32.Rhe1 Ne2! 33.Re2 Re8 34.Kd4 Re2 35.Kd5 Rf2 36.Kd4-+) 32...Ne2 33.Kc5 (33.Ke3 Re8 34.Ne5 Re5 35.Kf3 Rd2 36.Rad1 Nd4 37.Kf4 Rf5 38.Kg3 Rf3 39.Kh4 Rdf2 40.a3 Rg2 41.Rd3 Rf4) 33...c3 (33...Rc8 34.Kd5 Rb5 35.Kd6 Rb6 36.Ke7 Nc3 37.Rhb1 Nd5 38.Kd7 Bf5) 34.Nb3-+ c2 (better 34...Be4!? 35.Nfd4 Bh1 36.Ne2 Re2 37.Rh1 Ra2 38.Rc1 Rf2 39.Kd4-+) 35.Ne5 (35.Nfd4 Nc3-+) 35...Bf5 36.Rhe1 (36.Rae1 Rc8 37.Nc6 Nc3-+) 36...Rb1 37.Rab1 (37.Nc6 Rc8 38.Kd6-+) 37...cb1Q (37...cb1N?! 38.Re2 Nc3 39.Nc6-+; 37...cb1B?! 38.Re2 Re8 39.h4-/+) 38.Rb1 Bb1 39.Nd4 (39.Nc6 Rc8 40.Kd6 Ba2-+) 39...Rc8 40.Nec6 0-1. Reiluis - Lance5500 (2635), lichess.org, 2020. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3)

7.Bd3 Nbd7=.

7.Be2 Bb7 (7...c5 8.bc5 dc5 9.dc5 bc5 10.Ne5=) 8.0-0 c5 9.bc5 dc5 10.dc5 Na6 (10...bc5 11.Rb1 Qc8 12.Ne5=) 11.c6 (11.c6 Bc8 12.e4+/-) 1–0. Cirulis,Ilmars (1785) – Ramos,Francis (1615), FICGS, 2015.

6.e3 c5

7.b5 cd4 8.ed4 e5 9.de5 de5 10.Be2 e4 11.Nd4 e3 (better is 11...Nd5!? 12.Ne4 Qe7+=) 12.fe3+= Nd5 13.Nc4 a6 14.a4 Qh4 15.g3 Qe7 (15...Qh3+/-) 16.Qd2 (better is 16.Ba3 Qf6 17.Bf8 Bf8 18.Bf3 Bb4 19.Kf2+–) 16...ab5+= 17.ab5 Ra1 18.Ba1 b6 19.0-0 Bb7 20.Bf3 ½–½. Tkachev,Taras – Zhukov,Klim (2150), St Petersburg op U18, 2008. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Nbd2 c5)

7.b5 Nbd7 8.Be2 b6 9.a4 Bb7 10.Nc4 Rc8 11.Bd3 Bd5 12.dc5 Nc5 (worse is 12...dc5 13.0-0=) 13.Be2 Nce4 14.Na3? (14.Ncd2 Nf2! 15.Kf2 Ng4 16.Kg3 Bb2 17.Kg4 Ba1 18.Qa1 Rc2+=) 14...Nc3?? (14...Nf2 15.Kf2 Ne4 16.Ke1 Bb2 17.Qd5 Nc3–+ (17...Ba1?! 18.Qe4 d5 19.Qh4-/+)) 15.Bc3-/+ Rc3 16.Nb1 Rc5 17.0-0 Qc7 18.Bd3 Nd7 19.Ra3 (better is 19.Nd4!?-/+) 19...Bb2–+ 20.e4 Be6 21.Qd2 Ba3 22.Na3 Ne5 23.Nd4 Nd3 24.cd3 Rc8 25.Nc6 Rc6 26.bc6 Qc6 27.Nb5 a6 28.Nd4 Qa4 29.Qb2 Qa5 30.Ne6 fe6 31.Qb3 Kf7 32.f4 Qc5 33.Kh1 Qf2! 34.Rg1 Qf4 35.Qb6 Rc1 36.h3 Rg1 37.Kg1 Qc1 38.Kh2 Qf4 39.Kg1 Qc1 40.Kh2 Qa1 41.d4 Qf1 42.Qb7 Qf4 43.Kh1 Qc1 44.Kh2 Qf4 45.Kh1 a5 46.Qa8 Qc1 47.Kh2 Qf4 48.Kh1 a4! 49.d5 Qc1 50.Kh2 Qf4 51.Kh1 Qe4 52.de6 Qe6 53.Qa4 Qe1 54.Kh2 Qe5 55.Kh1 d5 56.Qh4 h5 57.Qf2 Qf5 58.Qd4 Qb1 59.Kh2 Qe4 60.Qh8 Ke6 61.Qg8 Ke5 62.Qg7 Kd6 63.Qf8 d4 64.Qb8 Kc5 65.Qa7 Kc4 66.Qa4 Kc5 67.Qa7 Kd6 68.Qb8 Kd7 69.Qa7 Ke8 70.Qb8 Kf7 71.Qb3 Kg7 72.Qb2 Qd5 73.Qa1 Kf6 74.Kh1 e5 75.Qa6 Qe6 76.Qa8 Qd6 77.Qf3 Kg7 78.Qb7 Kf6 79.Qf3 Ke6 80.Qe4 Ke7 81.Qb7 Kf8 82.Qa8 Kg7 83.Qb7 Kh6 84.Qa8 Qf6 85.Qd5 h4 86.Kh2 Qf5 87.Qg8 Qf6 88.Qd5 Kg5 89.Qd7 Kf4 90.Qg4 Ke3 91.Qd1 Qf4 92.Kh1 Qf2 93.Qb3 d3 94.Qb6 Ke2 95.Qb2 d2 96.Qe5 Kf1 97.Qa1 Qe1 98.Qf6 Ke2 99.Kh2 Qg3 (99...Qg3 100.Kg1 d1Q 101.Qf1 Qf1) 0–1. Senk,Christian (2115) – Crickmore,Neil EG (2100), Budapest FS04 FM–A, 2004. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3 c5)

7.c3 b6 8.Be2 Bb7 9.0-0 Nbd7 10.a4 a5 11.bc5 bc5 12.Nc4 d5 13.Nce5 c4 14.Qc2 Ne4 15.Nd7 Qd7 16.Nd2 Nd2 17.Qd2 Rfc8 18.Rfb1 Rab8 19.Bd1 Bc6 20.Bc2 Re8 21.Qd1 e5 22.Ba3 e4 23.Rb8 Rb8 24.Rb1 Rb1 25.Qb1 h5 (25...Ba4?? 26.Ba4 Qc8 27.Bd7+–) 26.Qd1 Bf8 27.Bf8 Kf8 28.Qa1 Kg7 29.h3 Qb7 30.Qa3 Bd7 31.Qa2 h4 32.Qa3 Be6 33.Qa2 Kf8 34.Qb1 Qb1 35.Bb1 g5 36.Bc2 Kg7 ½–½. Mas Garces,Juan Carlos (2120) – Lopez Colon,Francisco (2215), ESP–chT Spain, 1998. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3 c5)

7.c3 Nbd7 8.a4 Qc7 9.Nc4 (9.e4 b6=) 9...d5+= 10.Nce5 c4 11.Be2 b6 12.0-0 a6 13.Re1 Bb7 14.Qc2 Ne5 15.Ne5 Ne4 16.f3 Nd6 17.Bf1 (17.a5 b5=) 17...b5 (17...Bc8 18.a5+=) 18.a5 (18.Re2 f6 19.Ng4 e5+=) 18...Be5 (18...Bc8 19.Be2+=) 19.de5 Ne8 20.f4 f6 21.ef6 Nf6 22.Be2 Rae8 23.Rad1 e5 24.Bc1 Bc8 25.Bf3 Bf5 26.Qf2 Bd3 27.Qg3 Rf7 28.h4 Rfe7 29.Bd2 Qa7 30.Kh2 Qd7 31.Qg5 Kg7 32.h5 e4 33.h6 Kf7 34.Be2 Qf5 35.Kg3 Be2 36.Re2 Ke6 37.Be1+= Rf8 38.Kh4 Rd7 39.g4 Qg5 40.Kg5 Ne8 41.Bg3 Nd6 42.Kh4 Nf7 43.g5 Nd6 44.Kg4 Nf5 45.Bf2 Re8 46.Bg1 Rde7 47.Rde1 Kd6 48.Bh2 d4 49.ed4 e3 50.Bg1 Kd5 51.Kf3 Nh4 52.Kg3 Nf5 53.Kf3 Nh4 54.Kg4 Nf5 55.Kf3 Re4?? 56.Be3+– Nh4 57.Kg3 Nf5 58.Kf3 R8e6 59.Kf2 Re7 60.Kf3 R4e6?? 61.Kf2 Nd6 62.Kf3 Re8 63.Rc2 R6e7?? 64.Rce2 Nf5?? 65.Kf2 Re6 66.Kf3 Nd6 67.Rc2 Nf5= ½–½. Dive,Russell John (2330) – Ruck,Robert (2560), 36th Olympiad, Calvia ESP, 2004.

7.dc5 dc5 8.b5 Qa5 9.Bd3 Rd8 10.0-0 c4!? 11.Bc4 (11.Nc4 Qb5=) 11...Ne4 12.Bg7 Kg7 (12...Nd2? 13.Nd2 Rd2 14.Qf3+–) 13.Nb3 (13.Bd3 Nc3 14.Qc1 Rd3!) 13...Qc7 14.Bd3 Bg4 15.Qc1?! (15.Nbd4!) 15...Bf3 16.gf3 Nc3! 17.Re1 Nd7 18.Bf1 (18.f4 e5!) 18...Ne5 19.Bg2 Nb5?! (19...Nc4!–+) 20.a4 Nc3 21.Qa3 =. Alexandria – Chiburdanidze, 1977.

7.dc5 dc5 8.b5 Qa5 9.Bd3 Rd8 10.0-0 Be6 11.Qb1 Nbd7 12.c4 Qc7 13.h3 Nb6 14.Qc2 Rd7 15.Rfd1 Rad8 16.Be2 h6 (16...Bf5 17.Qc1+=) 17.a4 Bf5 18.Qb3 Bd3 19.Kf1 (19.Bd3 Rd3 20.Qc2=) 19...Qd6 (19...a5!?+=) 20.Ne5 (20.a5!? Be2 21.Ke2+=) 20...Be2= 21.Ke2 Qe6?? (better is 21...Qd2 22.Rd2 Rd2 23.Ke1 Ne4-/+) 22.Nd7+– Rd7 23.a5 Nc8 24.Nf3 Nd6 25.Rac1 Rd8 26.Ne1 (26.Kf1 b6+–) 26...Rc8 27.Nd3 g5 28.Kf1 b6 29.ab6 ab6 30.f3 Nf5 31.Re1 Rd8 32.g4 (better is 32.Kg1!?+–) 32...Nh4+= (32...Ne3 33.Kg1 Nfg4 A) worse is 34.fg4 Qe4 35.Qc2 Rd3 (worse is 35...Qd3 36.Qd3 Rd3 37.Bg7 Kg7 38.Kf2 Nc4 39.Rc4+/-) 36.Bg7 Kg7-/+; B) 34.Bg7+=) 33.Ne5 Ne4 34.fe4 Be5 35.Re2 Bb2 36.Qb2 Qe4 37.Kg1 Qf3 38.Kh2 Qe4 39.Rf1 (39.Kg1 Nf3 40.Kf2 Ne5-/+) 39...Qc4 (39...Nf3 40.Rf3 Qf3 41.Rd2 Rd2 42.Qd2–+) 40.Ref2 f6 41.Qa2 Qa2 42.Ra2 Ng6 43.Rff2 Ne5 44.Kg3 (44.Kg2 Nc4 45.e4 Kf7-/+) 44...Nc4 45.Kf3 Rd3 46.Rfe2 Rb3 47.Rac2 Nd6 (47...Ne5 48.Kf2–+) 48.Rb2-/+ Rc3 (48...Rb5?! 49.Rb5 Nb5 50.Rb2+=) 49.Rec2 Ra3 50.Ra2 Rb3 51.Rcb2 Rc3 52.Rc2 Rb3 53.Rab2 (53.Rcb2 Rb2 54.Rb2+=) 53...Ra3 54.Ke2 1–0. Lumsdon,Andrew (2090) – Obiamiwe,Paul (2045), 8th Gibraltar Challengers–A, 2010. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d6 5.Bb2 0-0 6.Nbd2 c5)

7.dc5 dc5 8.b5 Bf5!?

7.bc5 dc5

8.Nb3 Nbd7 9.dc5 Qc7 10.Bb5 (10.Bd3 Rd8+=) 10...Rd8 11.Qe2 Ne4 The pressure on the isolated pawn grows 12.Bg7 Kg7 13.Bd7 Bd7 14.Qc4 Bc6 15.0-0 Bd5 16.Qb4 a5 17.Qa4 e5 18.Qb5 (18.Qa3 f6-/+) 18...a4–+ 19.Nbd2 Nd2 20.Nd2 Ra5 21.Qb6 (21.Qb4!? Qc5 22.Qh4 Raa8-/+) 21...Rc5 22.Qc7 Rc7 23.Nf3 Bf3 24.gf3 Rc2 25.Rfc1 Rb2 26.Rcb1? (26.a3–+) 26...a3 27.Kg2 (27.Rf1 Rdd2 28.Rab1 Ra2 29.Rb7 Rab2–+) 27...Rdd2 28.Rb2 ab2 (28...Rb2?! 29.Kg3–+) 29.Rb1 Kf6 0–1. Ellemann,Stefan (1845) – Kovalev,Andrei (2475), Chemnitz GER, Turm Open, 2014. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 Bg7 4.e3 0-0 5.b4 d6 6.Bb2 c5)

8.c3 b6 9.Bd3 Bb7 10.0-0 Nc6 11.Qe2 Nd5 12.g3 cd4 13.cd4 Ndb4 14.Bb5 a6 15.Ba4 b5 16.Bd1 e5 17.Nb3 ed4 18.Nc5 Bc8 19.a3 Nd5 20.Nd4 Nd4 21.ed4 Nb6 22.Bb3 Bh3 23.Rfd1 h5 24.Qe4 Nc4 25.Bc3 Re8 26.Qd3 Qd5-/+ 27.f3 Bf5 28.Qf1 Re3 29.Rac1? Rf3 30.Qg2 Bh6 31.Re1 Bc1 32.Rc1 Bh3! 33.Qh1 Qf5 34.Bc4 bc4 (34...bc4 35.Qg2 Bg2 36.Kg2 Rf2 37.Kg1 Qf3 38.Na6 Qg2#) 0–1. Poley,V (2335) – Bagaturov,G (2465), Open, Thessaloniki GRE, 2009.

8.c3 Nc6 9.Be2 Bf5 10.0-0 Rc8 11.Nh4 Be6 12.Nhf3 Qb6 13.Ba3 Qa5 14.Bc5 b6 15.Bb4 Nb4 16.cb4 Qb4 17.a3 Qa5 18.Qb1 Nd5 19.Qb2 Rc7 20.Rac1 Nc3 21.Bc4 Na4 22.Qb1 Rfc8? 23.Nb3 Qf5= 24.Qf5 Bf5 25.Ba6 Rc1 26.Rc1 Rc1 27.Nc1 e6 28.Na2 Bf8 29.Nb4 Nc3 30.Ne5 Be4 ½–½. Arkell,Keith C – Hernandez,Gilberto, Balaguer, 1997.

8.c3 Bf5 9.Be2 Nc6 10.0-0 cd4 11.cd4 Nb4 12.Qb3 a5 13.Rfc1 (13.a3 Nbd5+=) 13...Rc8 (13...Nc2!? 14.Rab1 Nb4=) 14.Rc8+= Qc8 15.Rc1 Bc2 16.Qa3 Qf5 17.Ne5 b6 18.f3 (18.Bf3 Nfd5+/-) 18...Bh6 19.f4 Nfd5 20.Bg4 Qf6 21.Bf3 Qe6 22.g3 Rc8 23.e4 Nf4 24.gf4 Bf4 25.Bg4 f5-/+ 26.d5 Nd5?? 27.ed5= Qd5 28.Rc2?? Rc2–+ 29.Bf3 Qc5 30.Qc5 bc5 31.Bd5 Kf8 32.Ndc4 Bh2 33.Kh1 Rb2?? 34.Nd7+= Ke8 35.Nb2 Kd7 36.Kh2 e6 37.Bc4 Kd6 38.Kg3 g5+= 39.Bd3 h5 40.Nc4+/- Kd5 41.Na5 Kd4 42.Bb5 e5= 43.Nc6 Ke4 44.a4 f4 45.Kf2 Kd5 46.a5 c4 47.a6 c3 48.a7 1–0. Wegerer,Fred (2195) – Deutschmann,Robert Peter (2090), Graz op–A, 1999.

8.Bd3 Nd5 9.a3 Nc6 10.c4 Nc7 11.Nb3 Ne6 12.Be4 cd4 13.ed4 Na5 14.Na5 Qa5 15.Qd2 Qd2 16.Kd2 Rd8 17.Rad1 Nd4 18.Nd4 Bd4 19.Ke2 (19.Kc2 e5 20.Bd4 ed4+= (worse is 20...Rd4 21.Rd4 ed4 22.Kd3+=)) 19...e5 (better is 19...Bg4 20.f3 Bb2 21.fg4 Rd1 22.Rd1 Rc8-/+) 20.Bd4+= ed4 21.Bd5 Be6 22.Rd4 Rd6 23.Rhd1 Rad8 24.Ke3 Kf8? (better is 24...b6+=) 25.Bb7+– Rd4 26.Rd4 Rb8 27.Bd5 Bf5 28.Be4 (28.c5 Rc8 29.g4 Bd7+–) 28...Be6 (better is 28...Be4!? 29.Ke4 Rb2+/-) 29.c5+– Rb5 30.Ra4 a5 31.c6 (better is 31.Kd4!? Bd7 32.c6 Bc8+–) 31...Ke7 32.g4! Kd6 (32...Bg4 33.Bd3 Decoy) 33.Rd4 Kc7 34.a4 Rb3 35.Kf4 Rh3 36.Bg2 Ra3 (36...g5 37.Kg5 Rh2 38.Bf3 h6 39.Kf4 Rf2 40.Ke3=) 37.Kg5 (better is 37.g5!?+–) 37...Ra2+= 38.Rf4 Bb3 39.Kh6 Ra4 40.Ra4 Ba4 41.Bd5 Bc6 42.Bf7 a4 43.Kh7 a3 44.f4 Kd6 45.Ba2 g5?? 46.f5 Bd5+= 47.Bb1 Ke5= 48.Kg6 Kf4?? 49.h3+/- a2 50.Ba2 Ba2 51.f6 Kg3 52.Kg5 Kh3 53.Kf4 Kh4 54.Kf5 Bf7 55.Ke5 Kg4 ½–½. Bernadskij,Vitalij – Guivan,Vasily (2240), Rodatychi op, 2006. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.Nbd2 c5)

8.Be2 Nc6 9.0-0 cd4 10.Nd4 (10.ed4 Nd5=) 10...Bd7 (10...Nd4 11.ed4 Bf5 12.c4=) 11.Bf3 (11.Nc4 Qc7=) 11...Rc8 12.N2b3 (12.Ne4 Ne5=) 12...b6 13.Nc6 (13.Qe2 Ne5 14.Bb7 Rc7=) 13...Bc6 14.Ba3 (14.Bc6 Rc6 15.Nd4 Rc7+=) 14...Nd5 (better is 14...Qd1 15.Rfd1 Bf3 16.gf3 Rfe8+=) 15.Rc1? (better is 15.Nd4 Ba8 16.Bb2+=) 15...Nc3–+ 16.Qd8 Rfd8 17.Kh1 (better is 17.Bc6 Ne2 18.Kh1 Nc1 19.Be7 Rc6 20.Bd8 Na2 21.Nd4 Bd4 22.ed4 Rc2 23.g4–+) 17...Bf3 18.gf3 Na2 (18...Kf8 19.Kg2 Na2 20.Rcd1–+) 19.Rcd1 e6 20.c4 (20.Rd8 Rd8 21.Rb1 Nc3–+) 20...Bf6 (20...a5 21.Rfe1–+) 21.Rd8 (21.c5 bc5 22.Rd8 Bd8 23.Nc5 Nc3–+) 21...Rd8 22.Rb1 (22.c5 Kg7 23.cb6 ab6–+) 22...Rd3 (22...Nc3 23.Rc1–+) 23.Kg2 (23.c5 Nc3 24.Rc1 Kg7–+) 23...a5 24.c5 Nc3 (24...a4 25.Nd4 Bd4 26.ed4–+) 25.Rc1 bc5 (better is 25...a4!? 26.cb6 ab3 27.Bb2–+) 26.Nc5 Rd5 (26...Rd2 27.Ne4 Ne4 28.Rc8 Rd8 29.Rd8 Bd8 30.fe4–+) 27.Ne4-/+ Ne4 28.fe4 Rd8 29.Rc4 (29.Rc7 h6-/+) 29...Rb8 (29...h6 30.Ra4 Bc3 31.Rc4-/+) 30.Ra4 (30.Bd6 Ra8-/+) 30...Rb5 (30...Bc3 31.Bd6 Rc8 32.e5-/+) 31.Bd6 (31.f4 Bc3-/+) 31...Be5 (31...Bb2 32.f4-/+) 32.Be5 Re5 33.Rc4 (33.f4 Rb5-/+) 33...Kg7 34.Kf3 (34.f4 Rb5–+) 34...Rh5 (34...Rb5 35.Ra4–+) 35.Kg3 (35.Ra4 Kf6–+) 35...Rg5 (35...Rb5 36.Ra4–+) 36.Kf3 Rh5 37.Kg3 Kf6 (37...Rb5 38.Ra4–+) 38.Rc7 (38.f4 Rb5-/+) 38...Rg5–+ 39.Kf3 Rh5 40.Kg3 Rb5 (40...Re5 41.f3–+) 41.Ra7 (41.f4 e5–+) 41...g5 (41...Rg5 42.Kf3 Re5 43.h3–+) 42.h4 (42.f4!?-/+) 42...gh4–+ 43.Kh4 Re5 44.f3 Rg5 (44...Kg6 45.Ra8–+) 45.f4-/+ Rb5 (45...Rc5 46.e5 Kg7 47.e4-/+) 46.Kg4 (46.e5 Kg6-/+) 46...Kg6 47.Ra8 (47.e5 h5 48.Kf3 Rc5–+) 47...h6 (47...Kg7 48.e5-/+) 48.Rg8 (48.Ra6 Rc5-/+) 48...Kh7 49.Ra8 Kg7 (49...Rc5 50.e5-/+) 50.Ra6 (50.e5 f6 51.ef6 Kf6-/+) 50...h5 (50...Rc5 51.e5-/+) 51.Kf3 (51.Kh4 Kh6-/+) 51...Kf6 (51...Rc5 52.e5-/+) 52.e5 (52.Kg3 Kg6-/+) 52...Kg6 53.Ra8 Kg7 (53...Rc5 54.Kg3-/+) 54.Kg3 Kg6 (54...f6 55.ef6 Kf6 56.e4-/+) 55.Rg8 (55.Kf3 f6 56.ef6 Kf6 57.Ra6-/+) 55...Kh7-/+ 56.Ra8 (56.Rf8 Rb7 57.Ra8 Rb3-/+) 56...Rb3 57.Kf3 (57.Kh4!? Kg6 58.e4-/+) 57...Ra3–+ 58.Ra7 Kg6 59.Ke4 (59.Ra6 Ra1–+) 59...a4 (59...h4 60.Ra8 Kg7 61.Rb8–+) 60.Ra8 (60.Ra6!? h4 61.f5 Kg5 62.fe6 fe6 63.Re6 Rb3–+) 60...Ra1 61.Ra6 (61.Rg8 Kh7 62.Rg5 Kh6–+) 61...Kg7 (61...h4 62.f5 Kh7 63.fe6 fe6 64.Kf4–+) 62.Rd6 a3 63.Rd2 a2 (63...h4 64.Rh2 Rb1 65.Ra2–+) 64.Rg2 Kh6 (64...Kf8 65.Rb2–+) 65.Rh2 Kg6 66.Rg2 Kh7 67.Rh2 Kg7 68.Rg2 Kf8 69.Rh2 Ke7 70.Rf2 h4 (70...Kd7 71.f5–+) 71.Rh2 (71.f5 ef5 72.Kf5 Ke8–+) 71...h3! 72.Rd2 (72.Rh3 Rg1 Combination) 72...Ke8 73.Rb2 Kd7 (better is 73...Kf8!?–+) 74.Rc2-/+ Kd8 75.Rh2 Kc7 76.Rf2 (76.Rb2 Kc6 77.Rh2–+) 76...Kb6 77.f5 (77.Rh2 Kb5 78.Rd2–+) 77...ef5 78.Kf5 h2! (78...h2 79.Rh2 Rf1 80.Kg4 a1Q 81.Rh6 Kc5 82.Rh2 Rg1 83.Kf3 Qd1 84.Re2 Qd5 85.Kf4 Qc4 86.e4 Qe2 87.e6 Qf2 88.Ke5 Rg5) 0–1. Fernandez,Daniel Howard (2470) – Ghasi,Ameet K (2455), PRO League Central, 2017. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3 c5)

8.Be2 Nc6 9.dc5 Qa5=.

8.Be2 Nc6 9.c4 b6 10.d5 Na5 11.e4 Re8 12.e5 Nh5 13.0-0 Nf4 14.Nb3 Nb3 15.ab3 Qd7 16.h3 Ng2 17.e6 fe6 18.Bg7 Kg7 19.Kg2 ed5 20.Qd5 (worse is 20.cd5 Qh3 21.Kg1 Qg4 22.Kh1 Bb7+=) 20...Qh3 21.Kg1 Qg4 22.Kh1 Bf5 23.Qe5 Kg8 24.Rg1 Qe4 25.Rge1 a5 26.Qg3 Rad8 27.Kh2 Qc2 28.Ne5 Rd2 29.Qe3 e6 30.Rad1 Red8 31.Rd2 Rd2 32.Nf3 Rd7 33.Kg3 Qb2 34.Bf1 Qf6 35.Kg2 h6 (35...Qd8 36.Kh2+=) 36.Kg1 (36.Qh6 Qc3+–) 36...h5 37.Ne5 Rd6 38.Qf3 Qe7 39.Bg2 Kg7 0–1. Lumsdon,Andrew – Glowatzky,Tihomir (1980), VM2001 (VR Gr.1), 2001. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d6 5.Bb2 0-0 6.Nbd2 c5)

6.e3 c6

7.c4 a5 8.a3 Bd7 9.b5 a4 10.bc6 Nc6 11.Bd3 Re8 12.d5 Na5 13.0-0 Qb8 14.Rb1 Rc8 15.Bd4 b5 (better is 15...e5!? 16.de6 fe6+=) 16.e4+– (worse is 16.cb5 Nd5 17.Be4 Be6+=) 16...Nb7 17.cb5 Nc5 18.Qe2 e6 19.de6 Ne6 20.Ba1 Ng4 21.Bc4 Ba1 22.Ra1 Bb5 23.Rfb1 (worse is 23.Bb5 Nf4 24.Qd1 Qb5+=) 23...Bc4 24.Nc4 Qc7 25.Nb6 d5 26.g3 (26.Nd5?! Nd4 27.Nc7 Ne2 28.Kf1 Rc7 29.Ke2 Rc2 30.Kf1 Rf2 31.Kg1 Rc2+=) 26...Qc2? (better is 26...de4 27.Qe4 Nf6+–) 27.Qc2 Rc2 28.ed5 Ng7 (28...Ra7 29.de6 fe6+–) 29.Na8 (29.Na8 Nf5 30.Ne1+–) 1–0. Cacco,Christian (2395) – Xia,Jie (2105), Campodarsego op, 2006. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3)

7.c4 Bg4 8.Be2 a5 9.b5 Re8 10.a4 Nbd7 11.h3 Bf3 12.Bf3 d5 13.cd5 cd5 14.0-0 e6 15.Rc1 Bf8 16.e4 Nb6 17.e5 Nfd7 18.Qb3 Rc8 19.Rc8 Qc8 20.Ba3 (better is 20.Be2!?+=) 20...Ba3+= 21.Qa3 Qc2 22.Nb3? (better is 22.Qe3+=) 22...Nc4–+ 23.Bd1 Na3 24.Bc2 Nc2 25.Rc1 Na3 26.Rc7 Nb6 27.Rb7 Na4 28.Na5 Nc4 29.Nb3 Rc8 30.Ra7? Ncb6 31.Rb7 Rc4 32.Nc5 Rd4 33.Na4 Na4 34.b6 Rb4 35.Rb8 Kg7 36.b7 Nc5 37.Rc8 Nb7 38.Rb8 Rb1 39.Kh2 Rb3 0–1. Guth,Gerd Volker (1830) – Hamburg,Daniel (1895), Ruhrgebiet VK1, 2005. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Nbd2 0-0 5.b4 d6 6.Bb2)

7.Bd3 a5=.

7.Bd3 Qc7 8.0-0 Nbd7 9.c4 Nh5 10.g4 Nhf6 11.h3 Ne8 12.Rc1 a5 13.b5 f5 (13...c5 14.Bc3=) 14.c5 (14.gf5 gf5 15.Qc2 e6+=) 14...d5 (better is 14...fg4!? 15.hg4 a4=) 15.b6+/- Qb8 16.gf5 gf5 17.Ng5 (17.Qc2 e5 18.de5 Ne5 19.Ne5 Be5 20.Be5 Qe5+/-) 17...e5 18.f4 (18.Ne6 Rf7+=) 18...ef4 (18...e4 19.Be2 Ndf6 20.h4=) 19.ef4 (19.Rf4 Ndf6+=) 19...Ndf6= 20.Qe2 Ne4 21.Nde4?? de4?? 22.Be4?? fe4-/+ 23.Qc4 Kh8 24.Nf7 Rf7! 25.Qf7 Bh3 26.d5 h6 27.Rc3 Bg4 28.f5 Bd4 29.Kh1+= Qd8?? 30.Rh3!!+– Qg5 31.Bd4 Ng7 32.Qg7 Qg7 33.Rh6 Kg8 34.Bg7 Bf3 35.Rf3! ef3 36.Rh8 Kg7 37.Ra8 f2 38.Kg2 1–0. Bettman,J (1870) – Zwirs,Nico, BSG Pinkster GpA, Bossum NED, 2010.

7.Be2 a5 8.b5=.

7.Be2 Nbd7 8.0-0 Qc7 (8...a5 9.b5=) 9.Nc4 (9.c4 c5+=) 9...Nb6 (9...b5 10.Na5=) 10.a4 (10.Nb6 Qb6 11.a3 a5=) 10...Bg4 (10...Nc4 11.Bc4 a5 12.b5=) 11.Na5 (11.Nb6 Qb6 12.Bc3 Ne4=) 11...Rad8 12.c4 e5 (12...c5 13.Qb3 Ne4 14.Qc2=) 13.de5 de5 14.Be5 Rd1 15.Bc7 Ra1 16.Ra1 Bf3 (16...Ne8 17.Be5 Be5 18.Ne5 Be2 19.Nb7=) 17.gf3 (17.Bf3 Ne8 18.Bb6 ab6+=) 17...Ne8+= 18.Bb6 ab6 (worse is 18...Ba1 19.Bc5 b6 20.Bf8 ba5 21.Bc5 ab4 22.Bb4+/-) 19.Nb3 (19.Rb1 ba5 20.ba5 Nf6-/+) 19...Ba1-/+ 20.Na1 Nc7 21.Nb3 Ra8 22.a5 ba5 23.ba5 Ne6 24.Kf1 Kf8 25.Ke1 Ke7 26.c5 Kf6 27.f4 Rd8 28.Bc4+= Kf5 29.f3 Kf6 30.Ke2 Nc7 31.Nd4 Nd5 32.Kd3 Nc7 33.Kc3 Ra8 34.Kb4 Re8 35.e4 Rd8 36.Kc3 Ra8 37.Kb4 Ke7 38.h4 Ne6-/+ 39.Be6 fe6 40.f5 e5 41.Ne6 gf5 42.ef5 h6 43.Nc7 Rc8 44.a6 ba6 45.Na6 Rf8 46.Ka5 Rf5 47.Kb6 Rf3 48.Kc6 e4 49.Nb4 e3 50.Nd5 Kd8 51.Kd6 e2 52.c6 Rd3 53.c7 Kc8 54.Kc6 Rd5! (54...Rd5 55.Kd5 h5–+) 0–1. Dive,RJ (2440) – Berezina,I (2230), Zone, 1999.

6.e3 Nbd7

7.Rb1 b6 8.b5 a6 9.a4 Bb7 10.Be2 e6 (10...e5 11.0-0=) 11.0-0 (11.c4 ab5 12.ab5 Qe7=) 11...Qe7 12.c4 e5 13.Rc1 (13.de5 de5 14.Qc2 Rfd8=) 13...a5 (13...Rfe8 14.Re1=) 14.c5 (14.Qc2 Rae8+=) 14...dc5 (14...bc5 15.de5 de5 16.Nc4=) 15.Ne5+= Ne5 16.de5 Nd5 17.Nc4 Rad8 18.Qb3 Nb4 19.f4 Be4 20.Bf3 (20.Bc3 Qe6=) 20...Bd3 (20...Bf3 21.Rf3 Rd3 22.Rc3=) 21.Rfd1 Qe6 22.h3 h5 (22...Qf5 23.g4 Qe6 24.Rc3 Bc4 25.Qc4 Rd1 26.Bd1+=) 23.Ba3+= Bc4 24.Qc4 (24.Rc4 Rd1 25.Bd1 Rd8+=) 24...Rd1= 25.Bd1 Qc4 26.Rc4 Rd8 27.Be2 Rd2 28.Kf2 Nd5 29.Bc1 (29.Kf3 Ra2 30.Bc5 bc5 31.Rc5 Nb6=) 29...Ra2 30.Kf3 Nb4 31.Bd1 Nd3 32.Bb3 Rf2 (32...Ra1 33.Bd2 Be5 34.Ke2+=) 33.Ke4= Nb4 (33...Ne1 34.Kd5 Nd3 35.g3=) 34.g4 (34.g3 Rh2=) 34...h4 (34...Rh2 35.Ba3=) 35.Ba3+= Kf8 36.Bb4 ab4 37.a5 (37.Rc2 Rc2 38.Bc2 Ke7+/-) 37...Rb2 (37...ba5 38.Rc5 a4 39.Ba4+–) 38.Rc5?? (better is 38.Bc2 b3 39.Bd3 ba5 40.Rc5+–) 38...f5?? (better is 38...bc5 39.Bd5 b3–+) 39.ef6!+– Bf6 40.Rc7 Bd8 (40...Be7 41.Rc8 Kg7 42.ab6 Bd6+–) 41.ab6 Rb3 42.Rc8 Ke7 43.b7 (43.b7 Bb6 44.b8Q Re3 45.Kd5 Rd3 46.Kc6+–) 1–0. Bates,Richard A (2310) – Sasikiran,Krishnan (2375), Stoke–on–Trent MCCU, 1997. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Nbd2 Nbd7)

7.Rb1 b6 8.b5 Bb7 9.c4 Re8 10.Be2 e5 11.0-0 e4 12.Ne1 c5 13.bc6 Bc6 14.Ba3 Qc7 15.Nc2 Bb7 16.Rb3 Nf8 17.Nb1 Ba6 18.Rc3 Ne6 19.Nb4 Bb7 20.Rc1 Qd7 21.Nc3 h5 22.Nbd5 Ng5 23.Nb5 Bd5 24.cd5 Nd5 25.Qb3 (25.Bd6?! a6 26.Qb3 Qe6+=) 25...Qe6 26.Bc4 (26.Bd6?! a6 27.Nc7 Nc7 28.Bc7 b5+=) 26...Nf3 27.gf3 Qh3 28.Bd5 Re5 (28...ef3 29.Bf3! Qf3+–) 29.Bd6 (29.de5?! Be5 30.Rc8 Rc8 31.Bf7 Kh8=) 29...ef3 30.Bf3 Qf3 31.Be5 Be5 32.Qd1 Bh2 (32...Qd1 33.Rfd1 a6 34.Nc7 Bc7 35.Rc7+–) 33.Kh2 Qf6 1–0. Bates,Richard (2315) – Mestel,A Jonathan (2510), BCF–chT, 1996. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 0-0 5.Bb2 d6 6.Nbd2 Nbd7)

7.Rb1 c5 8.bc5 dc5 9.Bc4=.

7.Rb1 c5 8.bc5 dc5 9.Be2 b6 10.c4 cd4 11.ed4 Bb7 12.0-0 Qc7 13.Re1 Rfe8 14.Bf1 Rad8 15.d5 (15.Bd3 e6=) 15...Nc5 16.Be5 Qd7 (16...Qc8 17.Nb3=) 17.Nb3 Qc8 18.Nc5 Qc5 19.Qa4 Nd7? (better 19...Ra8!?+=) 20.Bg7 Kg7 21.Qa7 Qc7 22.Qa3 Ra8 (22...e6 23.d6 Qb8 24.Be2+/-) 23.Qb2+- Kg8 24.h4 (24.Ne5 Bc8+-) 24...h5 (24...e6!? 25.Rbd1 ed5 26.Re8 Re8 27.cd5 Qd6+/-) 25.Ne5+- Ne5 26.Qe5 Qd8 27.Qd4 Ra6 28.Re3 Ra2 (28...e6!?+/-) 29.Qb6+- Qb6 30.Rb6 Ba6 (30...Bc8 31.c5 Ra1 32.c6+-) 31.d6 Ra1 (31...e6 32.c5 Bf1 33.Kf1+-) 32.Re7 Rd8 (32...Ra8 33.Rc7 Rd1 34.d7+-) 33.Rc7 Kf8 34.f3 1-0. Bauer,Ch (2645) - Fecker,Noah (2310), 119th ch-SUI Masters, 2019. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 0-0 5.Bb2 d6 6.Nbd2)

7.Rb1 c6 8.c4 Re8 9.Be2 e5 10.0-0 e4 11.Ne1 Nf8 12.d5 (12.a4 Bf5=) 12...cd5= 13.cd5 Bf5 14.Nc4 h5 15.Nc2 Rc8 16.b5 Bg4 17.f3 ef3 18.gf3 Bh3 19.Rf2 Re7 20.Bd4 (20.b6 ab6 21.Bd4 b5 22.Rb5 Qc7+=) 20...Ne8 (20...Rec7!? 21.b6 Rc4 22.Bc4 Rc4 23.ba7 Qa8=) 21.Ba7+= Rec7 22.N2a3 Nd7 23.Kh1 Qh4 24.Qg1 b6 25.Bb6 Nb6 26.Nb6 Rc1 27.Bf1 Rb1 28.Nb1+= Rc1 29.Nd2 Bc3 30.Nbc4 Qe7 31.Re2?? Qb7 32.e4?? Qb5 33.Rf2 Qc5–+ 34.Qg3 Bf1 35.Rf1 Rf1 36.Nf1 Qc4 37.Qf2 Bd4 38.Qe1 Qc3 39.Qb1?? Qa1 40.Nd2? Qb1 41.Nb1 f5 42.Kg2 Nf6 43.Nd2 Kf7 44.a4 fe4 45.fe4 Bc3 46.Nc4 Ne4 47.a5 Nf6 48.Nd6 Kf8–+ 49.a6 Nd5 50.a7 Nb6 51.Nb5 Be5 52.h3 Kg7 53.Kf3 Kf6 54.Ke4 Na8 55.Na3? Bd6 56.Nb5 Bc5 57.Kf4 Bg1 58.Ke4 Kg5 59.Kf3 Kh4 60.Kg2 Bb6 61.Kh2 g5 62.Kg2 g4 63.hg4 hg4 64.Kh2 g3 65.Kg2 Kg4 66.Nd6 Ba7 67.Ne4 Bb8 68.Nf6 Kh4 69.Nd5 Nc7 70.Ne3 Ne6 71.Nf5 Kg4 72.Ne3 Kg5 73.Nf1 Kh4 74.Ne3 Nf4 75.Kf3 Kh3 76.Ng4 Ba7 0–1. Ritz,Thomas (2145) – Niermann,Michael (2250), BL2–West, 2000.

7.Rb1 e6 8.Bd3+= Qe7 9.0-0 e5 10.e4 Nh5 11.Re1 Nf4= 12.Bf1 (12.Nc4 ed4 13.Bd4 Bd4 14.Nd4 Ne5=) 12...ed4 13.Bd4 Ne5 (13...Bd4 14.Nd4 Ne5 15.g3 Nh3 16.Kg2=) 14.Ne5 Be5 15.Nc4 Rd8 16.Be3 (worse is 16.Ne5 de5 17.Bc5 Nh3 (worse is 17...Rd1 18.Be7 Re1 19.Re1+=) 18.gh3 Qg5 19.Kh1 Rd1 20.Rbd1 Qh4–+) 16...Be6 17.Qd2 Qf6 18.Ne5 de5 19.Qc3 Rd7 (19...c6 20.a4+=) 20.Rbd1 Rad8 21.Rd7 Rd7 22.a4 a6 23.b5 ab5 24.Bb5 c6 25.Bf1 h5 26.a5 Kh7 27.a6+/- ba6 28.Qc6 Qe7 29.Ba6 Qb4 30.c3 Qa5 31.Rc1 Qd8 32.Bf1 Rd1 33.Rd1 Qd1 34.Bf4 ef4 35.Qb5 f3 36.Qd3 Qc1 37.h3 h4 38.Kh2 Qe1 39.c4 Kh6 40.Qe3 Qe3+= 41.fe3 fg2 42.Kg2 Kg5 43.c5 Kf6 44.c6 Ke5= 45.c7 Bc8+= 46.Bc4 f6 47.Bf7 g5 48.Bg6 Kd6 49.Bf5 Bf5 50.ef5= Kc7 51.e4 Kd7 52.Kf2 Kd6 53.Ke2 ½–½. Arkell,Keith C – Ye Jiangchuan, England–China match, London, 1997.

7.Rb1 e6 8.Be2 b6 9.b5 Bb7 10.0-0 Qe7 11.a4 a5 12.Ba3 Rfd8 13.c4 Bf8 14.Qc2 Qe8 15.Rfc1 e5 16.Kf1 Rac8 17.Ne1 Ba8 18.Bf3 e4 19.Be2 Qe6 20.Kg1 Re8 21.Qd1 h5 22.Nb3 Bh6 23.c5 Bd5 24.cd6 cd6 25.Nd2 Ng4 26.Bg4 hg4 27.Rc8 Rc8 28.Rc1 Rc1 29.Qc1 f5 30.Qc8 Kf7 31.g3 Bg7 32.Nc2 Bf6 33.Bb2 Be7 34.Na3 Bb3 35.Nab1 Ba4 36.Nc3+/- Bb3 37.Nb3+– Qb3 38.Qd7 a4? 39.Kg2 Kf8 40.Qc8 Kf7 41.Qb7 Ke6 42.Ba1 g5 43.Qc8 Kf6 44.d5 (44.d5 Kf7 45.Qf5 Ke8 46.Ne4+–) 1–0. Ferguson,Mark – Coleman,David, Swansea ENG ch–GB, 1995.

7.Rb1 Qe8 8.Bd3 a5 9.b5 a4=.

7.Rb1 Qe8 8.Be2 e5 9.0-0 (9.de5 de5 10.e4 Qe7=) 9...Qe7 (9...e4 10.Ne1=) 10.c4 e4 11.Ne1 c6 (11...d5 12.Qb3=) 12.Nb3 Re8 (12...d5 13.c5=) 13.Na5 (13.a4 d5 14.c5 Qe6=) 13...h5 (13...d5 14.c5=) 14.c5+= d5 15.b5 Nb8 (15...cb5 16.Bb5 Qe6 17.Nc2=) 16.Bc3+= Bh6 (16...Qc7 17.h3+=) 17.bc6 bc6 (17...Nc6!? 18.Nc6 bc6+=) 18.Rb8!+/- Rb8 19.Nc6 Qc7 20.Nb8 Qb8 21.Qa4 Kg7 22.Qb5 Qc7 23.Ba5 Qe7 24.Nc2 Rh8 25.Nb4 Qe6 26.Bc7 Ng8 27.Qc6 Ne7 28.Qe6 Be6 29.Ba6 Bc8 30.Bb5 Be6 31.Ba6?? Bc8 32.Rb1 Bg5 33.Be5 Bf6 34.Bf6 Kf6 35.Bc8 Rc8+/- 36.Na6 Rc6 37.Nb8 Rc7 38.a4 Ke6 39.a5 Nc6 40.Nc6 Rc6 41.Rb8 Ra6 42.Rd8 h4 43.Kf1 f6 44.Ke1 g5 45.Kd2 g4 46.Kc3 Ra5 47.Rd6 Ke7 48.Rd5 g3 49.hg3 hg3 50.fg3 Ra3 51.Kd2 Ra2+/- 52.Kd1 Rg2 53.c6+– Rg3 54.Rd7 Ke8 55.Ra7 Kd8 56.Rd7 Kc8 57.Ke2 Rg2 58.Ke1 Rc2 59.d5 Rc3 60.Kf2 Rd3 61.Kg3 Re3 62.Kf4 Re1 63.Ra7 Rd1 64.Ke4 Re1 65.Kd4 (65.Kd4 Rc1 66.Rf7+–) 1–0. Bates,Richard – Coleman,David, 4NCL967–HE:RI, 1997.

7.Rb1 Re8 8.Nc4 Nb6 9.Na5 Na4 10.Ba1 Ne4 11.Qd3 (11.Rb3 Rb8=) 11...d5 12.Qb3 Nb6 13.Bd3 Nd6 14.0-0 c6 15.a4 Bf5 16.Bf5 gf5 17.Nd2 e6 (17...Qc7 18.c4=) 18.c4+= dc4 19.Ndc4 Ndc4 20.Nc4 Qd5 (20...Nc4 21.Qc4 Qg5 22.b5+=) 21.Rfc1 Red8 22.g3 Nc4= 23.Qc4 Qe4 24.Qc2 Rd5 25.Bc3 Rad8 26.Rb2 Bf8 27.Qe2 Bh6 28.Re1 Qg4 29.Qg4 fg4 30.h3 gh3 31.Kh2 Bg7 32.Kh3 h6 33.Rb3 a6 34.Kg2 Kh7 35.f4 f5 36.Kf3 h5 37.Reb1 Kg6 38.Bb2 R8d7 39.Ba3 Bf6 40.b5 cb5 41.ab5 a5 42.Rc3 Rd8 43.Rc7 R8d7 44.b6+= Rg7 45.Bc5 Rd8 46.Ke2 Ra8= 47.Kd3 a4 48.Ra1 Kh6 49.Rg7 Kg7 50.Kc4 Kh6 51.Ra3 Rg8 52.d5 ed5= 53.Kd5 Rg3 54.Ke6 Kg6 55.Ra4 h4 56.e4 h3= 57.ef5 Kg7 58.Ra2 Rg2 59.Ra3 Re2 60.Kd7 h2 61.Rh3 Kf7 62.Bd6 Bd4= 63.Bc7 Re7 64.Kd6 Re2 65.Kd5 Bg1 66.Be5 Rd2 67.Ke4 Bb6 68.f6 Bg1 69.Kf5 Bc5 70.Rh7 Kg8 71.Rh3 Kf7 72.Ke4 b5-/+ 73.f5 Bg1 74.Rh7 Kg8 75.Rg7 Kf8 76.Rh7 Kg8 77.Rg7 Kf8 78.Rh7 ½–½. Arkell,Keith C (2505) – Hawkins,Jo (2230), 95th ch–GBR, Liverpool ENG, 2008.

7.Nb3 b6 8.b5 Bb7 9.Be2 e6 (9...c6 10.a4=) 10.0-0 (10.c4 c5=) 10...Qe7 (10...a5 11.ba6 Ba6 12.c4=) 11.a4 Ne4 (11...a6 12.a5=) 12.Nfd2 (12.a5 c5+=) 12...Nd2= 13.Nd2 (13.Qd2 c5=) 13...e5 (13...c5 14.a5=) 14.de5 (14.a5 ba5 15.Ra5 c5+=) 14...Ne5 15.Bd4 (15.a5 Rfe8=) 15...Qg5 (15...a6 16.c3=) 16.Nf3 (16.e4 Qf4=) 16...Qf5 17.Ne1 h5 (17...Qe6 18.a5=) 18.f3 (18.a5 Rfe8+=) 18...a5 (18...a6 19.Nd3=) 19.c3 (19.Ra3 Rfe8=) 19...Qe6 20.e4 Rad8 (20...Rae8 21.Nd3=) 21.Nd3 Bh6 (21...f5 22.Nf4 Qf7 23.Qc2=) 22.Qc2 Nc4 (22...Rfe8 23.Rae1=) 23.Nb2 (23.Nf2 d5+=) 23...Ne3 (23...Nb2 24.Qb2 d5 25.Rae1+=) 24.Be3 (24.Qd2 A) 24...Nf1?? 25.Qh6 f6 26.Qg6 (worse is 26.Rf1 Qf7+–; 26.Kf1?! Qf7+–; worse is 26.Bf1 Qf7+–) 26...Kh8 27.Bc4+–; B) 24...Ng4 25.Qd3 Ne5=) 24...Be3= 25.Kh1 d5 26.ed5 (26.Bd3 Rfe8=) 26...Bd5+= 27.c4 Bb7 28.Rad1 Bd4 29.Nd3 Qf5 (29...Rfe8 30.Rfe1+=) 30.Ne1 (30.f4 Rfe8+=) 30...Qf6 (30...Qc2 31.Nc2 Bf6 32.Bd3+=) 31.Bd3 (31.f4 Be3=) 31...Rfe8-/+ 32.Qb1 (32.Qc1!?-/+) 32...h4 33.Nc2 h3 34.Nd4 hg2 (34...Qd4?! 35.Be4 Be4 36.Rd4 Bb1 37.Rd8 Rd8 38.Rb1 hg2 39.Kg2 Rd2 40.Kg3-/+) 35.Kg2 Rd4 (35...Qd4?! 36.Be4 Be4 37.Rd4 Bb1 38.Rd8 Rd8 39.Rb1 Rd2 40.Kg3-/+) 36.Be4 (36.Rf2 Rg4 37.Kf1 Bf3 38.Bf5–+) 36...Qg5 (36...Be4?! 37.fe4 Qg5 38.Kh1 Rde4 39.Qd3-/+) 37.Kf2 Be4 38.fe4 Rde4 39.Rd3 (39.Qe4 Re4 40.Rd3 Rc4 41.Re1 Qh4 42.Rg3 Rc2 43.Ke3 Rc3 44.Kf2 Qh2 45.Rg2 Rc2 46.Kf3 Qg2 47.Kf4 Qd2 48.Ke5 Qe1 49.Kf4 Rf2 50.Kg5 Qg1 51.Kh4 Rh2) 39...Re2 40.Kf3 Qg2 (40...Qg2 41.Kf4 R8e4) 0–1. Cherednichenko,Elena (2135) – Meszaros,Michal (2380), Brezova CZE, Open, 2010. (=1.d4 g6 2.Nf3 Bg7 3.e3 d6 4.b4 Nf6 5.Bb2 0-0 6.Nbd2 Nbd7)

7.Nb3 b6 8.Bd3 c5=.

7.Nb3 b6 8.Be2 Bb7 (8...a5 9.ba5 ba5 10.a4=) 9.0-0 Re8 10.c4 e5 (10...c5 11.a3=) 11.d5+= h5 (11...Qc8 12.a4+=) 12.Qc2 (12.a4 Qc8+/-) 12...e4 (12...c6 13.dc6 Bc6 14.Rfd1+=) 13.Nfd4+/- Nf8 (13...Ne5 14.Rfd1+/-) 14.a4 a6 15.a5 Qc8 (15...h4 16.f3+/-) 16.Rfd1 (16.Nd2 N8d7+/-) 16...h4 17.Nc6 (17.h3 Qd7+/-) 17...N8d7 (17...h3 18.Nbd4+/-) 18.Nbd4 (18.h3 Nb8 19.Bf6 Bf6+/-) 18...Ne5 (18...h3 19.g3+/-) 19.Bc3 (19.Ne5 de5 20.Nb3 h3+/-) 19...Qd7 (19...h3 20.Ne5 de5 21.Nb3+=) 20.Qb2 (20.Ne5 de5 21.Nb3 h3+/-) 20...h3 21.g3 Nd3 (21...Nfg4 22.Qc2+/-) 22.Qd2 (22.Bd3!? ed3 23.Rd3+/-) 22...b5 23.Bd3 ed3 24.Qd3 bc4 25.Qc4 Re4 (better is 25...Nd5!? 26.Qd5 Bc6 27.Nc6 Bc3+=) 26.Rac1+– Rae8 27.b5 ab5 (27...Ra8 28.Rd2+/-) 28.Qb5 Qc8 29.Be1 (29.Na7 Qa8 30.Ndc6 Bc6 31.Nc6 Qc8+–) 29...Bh6 (29...Qa8 30.Bd2+–) 30.Qb3 Ba8 31.Rc3 (31.Ra1 Bg7+–) 31...Ng4 (31...Bc6 32.Rc6 (32.Nc6?! Qg4 33.Nd4 Qh5=) 32...Qg4 33.f3 Be3 34.Bf2 Bd4 35.Bd4 (35.fg4?? Re1 36.Re1 Re1; 35.fe4?? Qe4 36.Qf3 Qe1 37.Re1 Re1) 35...Re1 36.Re1 Re1 37.Kf2 Qd4 38.Ke1 Qg1 39.Kd2 Qh2 40.Kd3–+) 32.Rdd3 (32.Qb5 Bc6 33.Rc6 Ne3 34.fe3 Qg4+=) 32...Kh7 (32...Bg7 33.Rc1+–) 33.Qd1 (33.Nb5 Bg7 34.Ncd4 Qb8+/-) 33...Nf6 (33...Bg7+–) 34.Qf3 (34.Nc2 Qf5+–) 34...Kg7 (34...Bg7 35.Rb3 Qa6=) 35.Nb5 Qb7? (better is 35...Qd7!? 36.Rd4 Rd4 37.Nbd4 Re5 38.Ne5 de5+–) 36.Rb3+– Nd5 (36...Qc8 37.Bc3 Bg5 38.Nba7+–) 37.Nd6 (37.Rd5?! Qc6 38.Bc3 Kf8=) 37...Qc6 38.Qf7 (38.Ne4?! Qc1 39.Rd1 Qc4+–) 38...Kh8 39.Ne4 (39.Ne8?! Qe8 40.Bc3 Nc3 41.Qe8 Re8 42.Rbc3 c6+–) 39...Rf8 40.Qd5! Qd5 41.Rd5 Bd5 42.Rb4 c5 (42...Kg8 43.Bc3 Rd8 44.f4+–) 43.Nc5 Rc8 44.Nd3 Rc2 (44...Bf8 45.Rd4 Be6 46.f4+–) 45.Rb2 (45.a6 Bg7 46.a7 Ra2+–) 45...Rc8 46.Kf1 (46.a6 Kh7+–) 46...Bc4 (46...Bg7 47.Rd2+–) 47.Bc3 (47.Ke2 Rd8 48.Rd2 Bg7+–) 47...Kg8?! (47...Bg7 48.Bg7 Kg7+–) 48.Ke2 Ba6 (48...Rd8 49.Bd4+–) 49.Bd4 (49.Rb6 Bd3 50.Kd3 Bg7 51.Bg7 Kg7+–) 49...Rc1 (49...Ra8 50.Bb6+–) 50.Kd2 Rh1 (50...Rc6 51.Rb8 Bf8 52.Nb4+–) 51.Rb8 Kf7 (51...Bf8 52.Bc5 Rh2 53.Rf8 Kg7 54.Ne5+–) 52.Ne5 Ke7 (52...Ke6 53.Rb6 Kd5 54.Ra6+–) 53.Ng6 Kd7 54.Ne5 Kc7 55.Rb6 Rh2 56.Rh6 (56.Ra6 Rf2 57.Ke1 Be3 58.Be3 h2+–) 56...Rf2 57.Kc3 Bc8 (57...Bf1 58.a6 Ba6 59.Ra6+–) 58.Bb6 Kb7 59.Rh7 (59.a6 Ka6 60.Bd4 Kb7 61.Rh7 Bd7 62.Rd7 Kc8+–) 59...Ka6 60.Nd3 Rg2 (60...Rf6 61.Kc4 Rb6 62.ab6 Kb6+–) 61.Kb4 (61.Kb4 Rb2 62.Nb2 Bb7 63.Nd3 h2 64.Nc5) 1–0. Peng,Xiongjian (2420) – Chen,Qi b (2325), Shanghai Gulf Cup, 2017. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 Bg7 4.e3 d6 5.b4 0-0 6.Bb2 Nbd7)

7.Nb3 Nb6 8.Bd3=.

7.Nb3 Nb6 8.Be2=.

7.b5 a6 8.ba6 ba6 9.Rb1=.

7.b5 Re8 8.Be2 e5 9.0-0 e4 10.Ne1 d5 (10...a6 11.a4=) 11.c4 c6 (11...dc4 12.Nc4 Nd5 13.Qc2=) 12.Nc2 (12.bc6 bc6 13.Nc2 Rb8=) 12...Nf8 (12...Nb8 13.Ba3=) 13.bc6 (13.Rc1 cb5 14.cb5 Bd7=) 13...bc6 14.Nb4 (14.Ba3 Rb8+=) 14...Bd7 (14...a5 15.Nc2=) 15.Na6 (15.Rb1!?=) 15...Qb6+= 16.cd5 Qb2 (16...Bc8 17.Qb3 Ba6 18.Qb6 ab6 19.Ba6 Ra6 20.dc6–+) 17.Nc4 Qb5 (17...Qb7 18.Nd6 Qb6 19.Ne8 Ne8 20.dc6 Bc6 21.Qc2=) 18.Nc7 Qb7 (18...Qb8 A) worse is 19.Na8 cd5 (worse is 19...Qa8 20.dc6 Qc6 21.Ne5+=) 20.Rb1 Qa8-/+; B) 19.d6+=) 19.d6 (19.Ne8 Be8 (worse is 19...Re8 20.Nd6 Qa8 21.Ne8 Qe8 22.dc6 Bc6 23.Qc2+/-; 19...Ne8?! 20.Na5 Qb6 21.Nc6+=) 20.Rb1 Qc8=) 19...Nd5 (19...Rec8 20.Na8 Qa8 21.Rc1+=) 20.Rb1= Qc8 21.Ne8 Qe8 22.Qb3 Ne6 (22...Be6 23.Rfc1=) 23.Rfc1 h5 (23...Nd8 24.Qa4=) 24.Na5 (24.Qb7!?+=) 24...Bf8+= 25.Bb5 Increasing the pressure on the isolated pawn on c6 (better is 25.Qc2+=) 25...Rb8?? (better is 25...Ne3 26.Bc6 Nd4 27.Qe3 Nc6-/+) 26.Nc6+= Bc6 27.Rc6 Nf6 28.Qc2 (28.d5 Ng5 29.Qb2 Qd8+=) 28...Qd8 (28...Bd6 29.Rd6 Rb5 30.Rc1=) 29.Bc4 (29.Ra6 Bd6 30.Ra7 Rb6+=) 29...Rb1 (29...Bd6? 30.Rb8 Qb8 31.Be6+–) 30.Qb1 Bd6 (30...Qd7 31.d5 Nd8 32.Rc7 Qd6 33.Ra7+=) 31.Be6 (31.Qb7 Nc7+=) 31...fe6 32.g3 (32.Qb5 Ne8+=) 32...Qd7= 33.Qb5 Kg7 (33...Nd5 34.Rc5 Qb5 35.Rb5=) 34.a4 h4 (34...Ng4 35.h3 Nf6 36.Ra6+=) 35.Ra6+= (worse is 35.gh4 e5 36.Qa6 Be7=) 35...Qe7 36.Qc6 Ne8 (36...Bb8 37.Qc8 Qb4 38.Qe6 Qe1 39.Kg2 h3 40.Qh3=) 37.Kg2 Qf7 (37...hg3 38.fg3 Qf7 39.Qe4+/-) 38.Qe4 h3 (38...hg3!? 39.hg3 Qe7+/-) 39.Kh3+– Qf2 40.Ra7 Nc7 41.Qe6 (better is 41.Qd3!? Qf3 42.Qc2+/-) 41...Qf1= 42.Kh4 Qf8?? (better is 42...Qe2 43.Rc7 Bc7 44.Qe7 Kg8 45.Qe8 Kg7 46.Qd7 Kh6=) 43.Qd7+– Kh6 44.e4?? (better is 44.Ra5+–) 44...Qf3= 45.Kh3 Qf1 46.Kh4?? (46.Kg4 Qe2 47.Kh3 Qf1 48.Kg4 Qe2 49.Kh3 Qf1=) 46...Qf3 (46...g5 47.Kg4 Qe2 48.Kh3 g4 49.Qg4 Qf1 50.Kh4 Be7 51.Qg5 Bg5 52.Kg4 Qe2 53.Kh3 Kh5 54.Rc7 Qf1) 47.Kh3 Qf1 48.Kh4?? (better is 48.Kg4 Qe2 49.Kh3 Qf1=) 48...Qf3 ½–½. Fernandez,Daniel Howard (2470) – Agrest,Inna (2270), PRO League Central, 2017.

7.c4 a5 8.a3 e5 9.Qc2 ed4 10.Nd4 Ne5 11.Be2 Re8 12.0-0 c5 13.bc5 dc5 14.Nb5 Bf5 15.e4 Nc6 16.Bf3 Ne4 17.Ne4 Bb2 18.Qb2 Be4 19.Rad1 Qg5 20.Be4 Re4 21.Rd5 Qe7 22.Nd6 Re1 23.Qb7 Qe2 24.Qf7 ½–½. Dive – Kulashko, Auckland 1996.

7.Bc4 c6 8.0-0=.

7.Bc4 e5 8.de5 Ng4 9.Rb1 Nge5 10.Bb3 a5 11.a3 ab4 12.ab4 c5 13.b5 Nb6 14.Ne5 de5 15.0-0 Bd7 16.Nc4 Nc4 17.Bc4 Ra4 18.Qd3 e4 19.Qe2 Bb2 20.Rb2 Qf6 21.Rbb1 Qc3 22.Bd5+= b6 23.Rb3 Qe5 24.Rd1 Kg7 25.c4 Be6 26.Be6 Qe6 27.Rc3 Rfa8 28.h3 h5 29.Rc2 Kh6 30.Rd5 Ra1 31.Kh2 Qf6 32.Rcd2 Rb1 33.Rd6?? Qe5–+ 34.g3 Raa1 35.Rd1 Qd6!! (35...Qd6 36.Rb1 Rb1–+) 0–1. Ponyi,Attila – Pietrusiak,Bogdan (2290), Salgotarjan, 1980.

7.Bc4 Qe8 8.a4 (8.0-0 Nb6 9.Bd3 Na4=) 8...e5 9.0-0 (9.de5 Ne5 10.Ne5 de5=) 9...e4 10.Ne1 Nb6 11.Bb5 Qe7 (11...Bd7 12.Bd7 Qd7 13.c4=) 12.Be2 a5 13.b5 h5 (13...c5 14.c4=) 14.c4 h4 15.Ba3 White prepares the advance c5 (15.Bc3 Be6=) 15...h3= 16.g3 g5 (16...Rd8 17.Rc1=) 17.Rc1+= White prepares c5 17...Bf5 (17...Rd8 18.c5 Nbd5 19.Bc4+=) 18.c5 Nbd5 19.b6 (better is 19.Nc4 Rfd8 20.Qd2+=) 19...c6 (19...cb6!? 20.cd6 Qe6+=) 20.cd6 (20.Nc4 g4+/-) 20...Qd8 (20...Qe6 21.Nc4+/-) 21.Nc4 Nd7 22.Bc5 Be6 23.f3 ef3 24.Bf3 (24.Nf3 g4 25.Nh4 Bh6+/-) 24...N7b6 (24...f5 25.Qd2+/-) 25.Nb6 Nb6 26.Nd3 (26.d7 Nd7 27.Bf8 Qf8+/-) 26...Re8 (better is 26...Nc4!? 27.Qe2 g4=) 27.Ne5 (27.Bb6!? Qb6 28.Nc5+–) 27...Nd7 28.Nd7 (28.Bc6 bc6 29.Nc6 Qc8+/-) 28...Qd7 29.e4 White intends d5 29...g4 30.Be2 f5 (30...Qc8!?+/-) 31.d5+– cd5 (31...Bf7 32.ef5 Re5 33.Bg4 Rd5 34.f6 Rd1 35.Bd7 Rc1 36.Rc1 Bf6 37.Bh3+–) 32.Bb5 (32.ed5!? Bf7 33.Bb5 Qd8 34.Rf5 b6+–) 32...Qf7 33.ef5 Bf5 34.Bd4 (34.Be8!? Re8 35.Bd4+–) 34...Bd4+/- 35.Qd4 Re4 36.Qf2 (36.Qd2 Re5 37.Qf4+–) 36...Rf8 (36...Be6 37.Qd2 Qh5 38.Rc7+/-) 37.d7 Bd7 (37...Qe7!?+=) 38.Bd7+/- Qf2 39.Rf2 Rf2 (39...Rd8!? 40.Bb5 Rd4+/-) 40.Kf2+– Kf7 (40...Rb4 41.Ke3 Kf7 42.Rd1+–) 41.Rc7 (41.Rd1 b6+–) 41...Kf6 (41...Rb4 42.Bg4 Kf6 43.Bd1+–) 42.Rb7 Rc4 43.Rb2 (43.Rb5 Rc2 44.Ke3 d4 45.Kf4 Ke7 46.Bg4 Rh2 47.Ra5 Rf2 48.Ke4 h2+–) 43...Ke5 44.Bb5 (44.Rb6 Kd4+–) 44...Rd4 45.Re2 Kd6 46.Ke3 Ke5 47.Rd2 Rb4 Black plans d4 48.Bc6 d4 (better is 48...Re4 49.Kf2 Rc4 50.Bd5 Ra4+–) 49.Ke2 Kd6 50.Bb5 Ke5 (50...Ke6 51.Kd3+–) 51.Rc2 (51.Bd7 Rc4+–) 51...Rb3 52.Bd3 (52.Kd2 Rb1+–) 52...Ra3 53.Bb5 (53.Rc5 Kf6+–) 53...Ke4?? (53...Rb3 54.Rc5 Kf6+–) 54.Bc6+– Ke5 55.Kd2 d3 (55...Kd6 56.Rc4+–) 56.Rc4 Ra2 57.Kd3 Rh2 (57...Kd6 58.Ke3 Rh2 59.Kf4+–) 58.Rg4 Ra2 59.Rh4 Ra3 (59...h2 60.Kc4+–) 60.Kc4 Rg3 (60...Kd6 61.Rh6 Kc7 62.g4+–) 61.Bd7 1–0. Dobrov,Vladimir (2515) – Huber,Martin Christian (2340), Graz Open A, 2016. (=1.Nf3 Nf6 2.d4 g6 3.Nbd2 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 Nbd7)

7.Nc4 b6 8.a4 Bb7 9.Be2 c5 10.b5 Rc8 11.0-0 cd4 12.Bd4 Qc7 13.a5 e5 14.Bb2 Ne4 15.Nfd2 Nec5 16.Nb3 d5 17.Nc5 Nc5 (17...Qc5? 18.Ba3 Qc7 19.ab6 ab6 20.Bd6+–) 18.Nd2 Rfd8 19.Qb1 d4 20.ed4 ed4 21.Bf3 Bf3 22.Nf3 Ne6 23.ab6 ab6 24.Ra6 Nf4 25.g3 Qb7 26.Ra3? (better is 26.gf4 Qf3 27.Qd1 Qf4 28.Bc1–+) 26...d3! 27.Bg7 (27.cd3 Qd5 Double attack (27...Qf3 Decoy; 27...Qf3 Interception)) 27...dc2 (27...Kg7 28.Qd1 Ne2 29.Kg2 Rc2 30.Qa1 Kg8 31.Rd1-/+; 27...Qf3 28.gf4 Qg4 29.Kh1 dc2 30.Qc1–+) 28.Qb2 c1Q! 29.gf4 (29.Qc1 Ne2 Double attack (29...Kg7 Deflection; 29...Ne2 Decoy); 29.Rc1 Nd3 Double attack (29...Nd3 Decoy)) 29...Qb2 30.Bb2 Qd5 31.Nd4 Re8 32.Rg3 Re4 33.Rg5 Qa2 34.Ba1 Qd2 35.Nb3 Qf4 36.Rg3 Qf5 37.Rb1 Rce8 38.Bc3 h5 39.h3 (39.Rc1 h4 40.Rg2 Rg4–+) 39...h4 40.Rg2 Qh3 0–1. Chepukaitis,Genrikh (2420) – Sivokho,Sergey (2425), St Petersburg White Nights op, 1998. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Nbd2 Nbd7)

7.Nc4 b6 8.Bd3 c5=.

7.Nc4 b6 8.Be2 Bb7 (8...c5 9.a3=) 9.0-0 e6 (9...c5 10.a3=) 10.a4 Nd5 (10...Qe7 11.a5=) 11.b5 (11.Qd2 f5=) 11...f5 (11...a6 12.Ncd2=) 12.a5+= Rb8 (12...a6 13.ab6 ab5 14.Na5+=) 13.ab6 (13.a6 Ba8+=) 13...ab6 14.Na3 (14.Ncd2 c6+=) 14...Bh6 (14...Ra8 15.c4 N5f6 16.Ra2+=) 15.c4 (15.Qd3 Ra8+=) 15...N5f6 16.Nc2 g5 (16...Ra8 17.Ra8 Ba8 18.Qd2+=) 17.Nb4 (17.Ra7 g4 18.Nd2 Qc8+=) 17...Ne4 (17...g4 18.Ne1 Ra8 19.Ra8 Qa8 20.d5+=) 18.Nc6 (18.Ra7 Bg7+/-) 18...Bc6 19.bc6 Ndf6 20.Ne1 (20.d5 e5+/-) 20...g4 21.Nc2 Qe8 (21...Ra8 22.d5 Ra1 23.Ba1+=) 22.f3 (22.d5 e5+/-) 22...gf3+= 23.gf3 Ng5 24.d5 (24.Kh1 f4 25.ef4 Nh3+=) 24...e5 (24...f4 25.e4+=) 25.Kh1+/- Rf7 (25...Bg7 26.Rg1 h6 27.Qe1+/-) 26.Qe1 Rg7 27.Qh4 Rg6 (27...Qg6 28.f4 Nge4 29.Rg1+=) 28.Rg1 (28.Ra7 Qe7+/-) 28...Qe7 (28...Ra8 29.Ra8 Qa8 30.Bd3+/-) 29.Rg2 (better is 29.Bd3 e4 30.Nd4 ed3 31.Nf5+–) 29...Kf7? (29...Nf7 30.Rg6 hg6 31.Qg3+=) 30.Rag1 (better is 30.f4!? ef4 31.ef4+–) 30...Rbg8+/- 31.Ne1 (31.f4 Nge4 32.Bh5 Nh5 33.Qh5 Qf6+/-) 31...Kf8 (31...Ke8 32.Bd3 e4 33.fe4 Nfe4 34.Rf1+=) 32.Bc1 (32.Bd3!? e4 33.fe4 fe4 34.Be2+/-) 32...Ne8 (32...Ke8 33.Nc2+=) 33.Bd1 (33.Nc2 Qf6+=) 33...Nf7 34.Qf2 (34.Qh3 Qf6+=) 34...Bg5 (34...Qf6 35.f4+=) 35.Qc2 Qf6 (35...Ng7 36.f4 Bf6 37.Rg6 hg6 38.Rg6 ef4 39.Ng2 fe3 40.Be3=) 36.Nd3 (36.f4 Bh4+=) 36...Bh4 (36...Bh6 37.Rg6 hg6 38.f4+=) 37.f4 (37.Bb2 Rg2 38.Rg2 Rg2 39.Qg2 Qg6+=) 37...e4= 38.Nb2 (38.Nb4 Rg2 39.Rg2 Rg2 40.Qg2 Qc3=) 38...Qh8 (38...Rg2 39.Rg2 Rg2 40.Qg2=) 39.Na4 Rg2 40.Rg2 Rg2 (40...Bf6 41.Rg8 Kg8 42.Bb2=) 41.Qg2 Qa1 42.Qb2 Bf6 43.Qa1 Ba1 44.Bd2 Ke7 45.Nc3 Nh8 (45...Nh6 46.Be2+=) 46.Kg2 (46.h4 Nf6=) 46...Ng6+= 47.Kg3 Ng7 48.Be2 Kd8 49.Nb5 (49.Kf2 Bb2=) 49...Bf6 (49...h5 50.Kf2=) 50.Kg2 Nh4 51.Kf2 Ng6 52.Kg2 Nh4 53.Kg3 Ng6 ½–½. Kurajica,Bojan (2525) – Burovic,Rijad (2300), 16. Premier League BIH, 2017. (=1.Nf3 g6 2.d4 Bg7 3.b4 d6 4.Bb2 Nf6 5.Nbd2 0-0 6.e3 Nbd7)

7.Nc4 Re8 8.Be2 c6 9.a4 Qc7 10.0-0 b6 11.Ra3 Nd5 12.Rb3 Bb7 13.Qa1 a6 14.Rd1 Rac8 15.Bf1 b5 16.Ncd2 N7b6 17.a5 Na4 18.c4 Nb2 19.Qb2 Nf6 20.Qb1 d5 21.c5 Rcd8 22.Ne5 Bc8 23.Bd3 Nd7 24.Nd7 Bd7 25.h3 e5 26.de5 Re5 ½–½. Dive,RJ (2440) – Guthrie,D (2135), zt3.2b Oceana Auckland NZL, 2000.

7.Bd3 a5 8.b5=.

7.Bd3 b6 8.a4 (8.0-0 Bb7=) 8...c5 (8...a5 9.ba5 ba5 10.0-0=) 9.dc5 dc5 10.b5 Qc7 (10...Bb7 11.0-0=) 11.0-0 Bb7 12.h3 Rad8 (12...Rfd8 13.a5=) 13.Nc4 (13.a5 Nd5 14.Bg7 Kg7 15.ab6 ab6= (worse is 15...Qb6 16.Ra4+/-)) 13...Rfe8 (13...Bd5 14.Nfd2=) 14.Be2 (14.a5 Ne4 15.Bg7 Kg7+=) 14...h6 (14...a5 15.Qc1=) 15.Qc1 Bd5 (15...a5 16.Rd1=) 16.Rd1 Qb7 (16...Bc4 17.Bc4 e6 18.Ra3=) 17.a5+= g5 (17...Ne4 18.Bg7 Kg7 19.Qb2 Kh7 20.Ra4+=) 18.Ne1 (18.Qb1 Ne4+/-) 18...Ne4 19.Bg7 Kg7 20.ab6 (20.Qb2 Ndf6+=) 20...ab6 21.Ra3 (21.Nf3 f6 22.Qb2 Nf8=) 21...Bc4= 22.Bc4 Ne5 (22...Ndf6 23.Bd3=) 23.Rd8+= Rd8 24.Qa1 f6 25.Ra7 (better is 25.Be6!?+=) 25...Rd1+= 26.Qe5? (better is 26.Qd1!? Qa7 27.Be6+=) 26...Re1–+ 27.Kh2 fe5 (worse is 27...Qa7 28.Qe4 Qd7 29.Qa8+=) 28.Rb7 Nd6 29.Re7 (better is 29.Rb6 Nc4 30.Rc6–+) 29...Kf8 30.Re6 (30.Re5 Nc4 31.Re6 Kg7–+) 30...Nc4 31.Rh6 Kg7 32.Rc6 (32.Rh5 Kg6 33.Rh8 Re2–+) 32...Re2 33.Kg3 Rc2 34.Rc7 (34.Kf3 Rb2–+) 34...Kf6 35.Rc6 (35.e4 Rb2 36.Rc6 Kf7 37.Rc7 Ke6 38.Rc6 Kd7–+) 35...Kf7 (35...Kf5 36.Rh6–+) 36.Rc7 (36.f4 gf4 (36...Ne3?! 37.fg5 Nd5 38.h4–+) 37.ef4 e4–+) 36...Ke6 37.Rc6 (37.e4 Rb2 38.Rc6 Kd7–+) 37...Kd5 38.Kg4 (38.Rf6–+) 38...Rf2 39.g3 (39.Kg5 Rg2 40.Kh5 e4–+) 39...Ne3 40.Kg5 Rf3 41.g4 (41.Rb6 Rg3 42.Kf6 c4–+) 41...Rh3 (41...Nc4 42.Rc7–+) 42.Rb6 Rg3 43.Rb8 (43.Kh4 Rg4 44.Kh3 c4–+) 43...Rg4 44.Kf6 Rb4 45.Ke7 (45.Re8–+) 45...c4 0–1. Utegaliyev,Azamat – Ismagambetov,Anuar, Kazakhstan Championship, 2017. (=1.Nf3 Nf6 2.d4 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Nbd2 Nbd7)

7.Bd3 Nb6=.

7.Bd3 d5=.

7.Bd3 e5=.

7.Be2 b6 8.0-0 c5 9.b5 Bb7 10.a4 Rc8 11.c4 cd4 ½–½. Mantovani,Renzo (2365) – Martorelli,Antonio (2220), ITA–ch, 1990.

7.Be2 c5 8.a3 a5 9.b5 b6 10.0-0 Bb7 11.c4 cd4 12.ed4 Rc8 13.Re1 d5 14.Rc1 e6 (14...dc4 15.Nc4 Nd5 16.Nfe5=) 15.a4 (15.Ne5 dc4 16.Ndc4 Bd5=) 15...Re8 (15...dc4 16.Nc4 Bh6 17.Nd6 Bc1 18.Bc1=) 16.Ba3 (16.Ne5 dc4 17.Ndc4 Bf8=) 16...Bf8 (16...Ne4 17.Ne4 de4 18.Nd2=) 17.Qb3 (17.Bf8 Rf8 18.Ne5 Ne5 19.de5 Nd7+=) 17...dc4 (17...Bh6 18.Qd3=) 18.Nc4+= Bd5 (18...Bh6 19.Nd6 Bc1 20.Nb7=) 19.Qb2 (19.Bf8 Nf8 20.Qe3 Re7+=) 19...Bh6= 20.Ne3 Rc1 21.Rc1 Ne4 22.Bc4 Ba8 23.Rd1 Ndf6 24.h3 Qc7 25.Bd3 Be3 26.fe3 Qg3 27.Rf1 Rc8 28.Qe2 Rc3 29.Bb2 Rd3 30.Qd3= Ng5 31.Qe2 Nh3-/+ 32.Kh1 Ng4 33.gh3= Qh3 34.Kg1 Qg3 35.Qg2?? Qg2–+ 36.Kg2 Ne3 37.Kf2 Nf1 38.Bc1 Bf3?? 39.Kf3= Nh2 40.Kg3+= Nf1 41.Kf2 Nh2= 42.Kg3 ½–½. Calitri,Kenneth N – Gorevoy,Michael, US Amateur Team East, Parsippany USA, 2006.

7.Be2 Re8 8.Nb3 b6 9.b5 Bb7 10.0-0 e5 11.a4 a5 12.c4 c5 13.bc6 Bc6 14.d5 Bb7 15.Nfd2 Qe7 16.Nb1 Rac8 17.Na3 Ba6 18.Nd2 Nc5 19.Ndb1 Nfe4 20.f3 Nf6 21.Nc3 Nfd7 22.Rb1 f5 23.Nab5 Nf6 24.Bc1 Rb8 25.Bd2 Bc8 26.Be1 h6 27.Bf2 Rb7 28.e4 Nfd7 29.Qc1 f4 30.Kh1 Na6 31.Qa3 Ndc5 32.Na2 g5 33.Rg1 Kh8 34.g3 fg3 35.Rg3 Rf8 36.Be3 Rg8 37.Rbg1 Qf6 38.h4 g4 (worse is 38...gh4 39.Rg6 Qf8 40.Nd6+–) 39.R1g2 gf3 40.Rf3 Qh4 41.Rh2 Qd8 42.Qc1 Bf6? 43.Bh6?? Rh7= 44.Nac3 Bg4 45.Rff2 Be2 46.Re2 Nd3 47.Qd2 Nac5 48.Be3 Rgg7 49.Bh6 Rg6 50.Nd1?? Ne4?? 51.Re4+/- Qg8 52.Be3 Nf4 53.Rf4 ef4 54.Bb6 Rgh6 55.Bg1 Qg4 56.Nd6 Qf3 57.Qg2 Rh2 58.Bh2 Qd1 (58...Qd1 59.Qg1 Qe2–+ (59...Qa4 60.Qb1 Qb4 61.Qb4 ab4 62.Nb5–+)) 0–1. Chandler,Patrick (2125) – Scheringer,Dietrich (2040), Regionalliga NW, 2005. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6 4.Bb2 Bg7 5.Nbd2 0-0 6.e3 Nbd7)

7.h3 c5 8.bc5 dc5 9.Bd3=.

7.h3 e5 8.de5 Nd5 9.Nc4 Nb4 10.c3 d5 11.cb4 dc4 12.Bc4 Qe7 13.Qb3 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Rd1 Qg5 17.g3 Qe7 18.h4 a5 19.b5 a4 20.Qc3 Bg4 21.Rd4 Qf6 22.Be2 Be2 23.Ke2 Qb6 24.Qd3 c6 25.Rb1 c5 26.Rd6 Qa5 27.h5 Rfd8 28.h6 Rd6 29.Qd6 Rd8 30.Qf6 Qd2 31.Kf1 Kf8 32.Qg7 Ke8 33.Qe5 Kd7 34.Kg1 Qd3 35.Rc1 b6 36.Qf6 Qd5 37.Qb6 c4 38.Qa7 Ke8 39.Qa4 Ra8 40.Qc2 Rc8 41.Qc3 Qb5 42.Qh8 Kd7 43.Rd1 Kc7 44.Qh7 c3 45.Qf7 Kb8 46.Qb3 (46.Qb3 Qb3 47.ab3+–) 1–0. Sergeev,Vl (2475) – Kohler,Ar (2225), Amsterdam NED, 2nd Science Park Open, 2012.

7.h3 Re8 8.Nc4 (8.e4 a5 9.ba5 e5 10.de5 Ne5 11.Ne5 de5=) 8...b6 (8...c5 9.dc5 dc5 10.bc5 Nc5 11.Qd4=) 9.Be2 (9.Bd3 c5=) 9...Bb7 (9...c5 10.a3=) 10.0-0 (10.a3 c5=) 10...Nd5 (10...c5 11.dc5 dc5 12.b5=) 11.Qd2 e5 (11...a6 12.e4 N5f6 13.e5=) 12.a4 (12.de5 de5 13.Rfd1 Qe7=) 12...e4= 13.Nh2 (13.Ne1 Qh4=) 13...a6 (13...Qg5 14.Rfb1=) 14.b5 (14.f3 ef3 15.Bf3 f5+=) 14...a5 (14...Qg5 15.Na3=) 15.Ba3 (15.Na3 Qg5=) 15...Qe7 (15...Qg5 16.Nb2=) 16.Rfe1 (16.Nb2 Qh4=) 16...f5 (16...Rad8 17.Nb2=) 17.Rac1 (17.Nb2 Qg5=) 17...h5 (17...Qg5 18.Bd6 cd6 19.Nd6+=) 18.Nb2 (18.Red1 Rf8=) 18...Rad8 (18...Qg5 19.c4 Nf4 20.Bf1= (20.ef4? e3 21.fg5 ed2–+)) 19.c4 N5f6 20.c5 (20.Nf1!?+=) 20...dc5+= 21.Qc2 (21.Red1 Bd5+=) 21...Nd5 22.dc5 (22.Qb3 Qf6+=) 22...Nc5-/+ 23.Bc5 (23.Bc4 c6-/+) 23...Qc5 (worse is 23...bc5 24.Qb3+=) 24.Qc5 (24.Bc4 Qa3 25.Re2 Kh7-/+) 24...bc5–+ 25.Nc4 Bc3 26.Kf1 (26.Red1 Bb4–+) 26...Bb4 27.Bd1 (27.h4 Kf7–+) 27...Kg7 28.Bb3 Kf6 (28...Be1 29.Re1 Ra8 30.Rc1–+) 29.Re2 Nb6 30.g4 (30.Ra2 Bd5 31.Raa1 Be6–+) 30...hg4 (30...fg4 31.hg4 Rd3 32.Nb6 cb6 33.Bc4–+) 31.hg4 Rd3 32.Ba2? (32.Nb6 cb6 33.Bc4–+) 32...Na4 0–1. Abdel Razik,Khaled (2375) – Ashraf,Shereif (2195), Golden Cleopatra Open, 2016. (=1.d4 Nf6 2.Nf3 g6 3.Nbd2 Bg7 4.b4 0-0 5.e3 d6 6.Bb2 Nbd7)

7.Be2 e5

8.0-0 e4 9.Ne1 Re8 10.c4 Nf8 11.Nc2 h5 12.d5 N8h7 13.f4 ef3 14.Nf3 Bd7 15.a4 Ng4 (15...Qe7 16.Bd4+=) 16.Bg7+/- Kg7 17.Qd4 Kg8 18.e4 Qe7 19.Nd2 Qh4 20.Bg4 hg4 21.g3 (21.a5 g3 22.hg3 Qg3+/-) 21...Qh6 22.Rf4 Ng5 23.Kh1 Re5 24.c5 Rae8 25.cd6 cd6 26.Raf1 f5 27.Qa7 Nh3 28.Qb7 Nf4 (28...Ba4 29.Ne3 Nf4 30.Rf4=) 29.Rf4= (29.Qd7? Ne2 30.Qd6 Ng3 (30...Qd2?! 31.Qg6 Kh8 32.Qf6 Kh7 33.Qf7 Kh8 34.Qf6 Kg8 35.Qg6 Kh8 36.Qf6=) 31.Kg1 Nf1 (31...Qd2?! 32.Qg6 Kh8 33.Qf6 Kh7 34.Qf7 Kh8 35.Qf6 Kh7 36.Qf7 Kh8 37.Qf6=) 32.Nf1 Re4–+ (worse is 32...fe4 33.Nce3-/+); 29.gf4 g3 30.Nf3 fe4 31.Qd7 ef3 32.Qf7 Kf7 33.Rf2 Re1 34.Ne1 Re1 35.Rf1 Rf1) 29...R5e7 30.Qb6 g5 31.Rf1 (31.Rf5?? Bf5 32.ef5 Re2–+) 31...f4 32.Qf2 Rf8 33.b5 Ref7 34.Kg1 Qh8 35.Qd4 Qh3 36.Qd3 fg3 37.hg3 Rf3 38.Nf3 (38.Rf3 gf3 39.Kf2 Qg2 40.Ke1 f2 41.Kd1 f1Q 42.Nf1 Rf1 (42...Qf1?! 43.Qf1 Rf1 44.Kd2-/+) 43.Qf1 Qf1 44.Kd2 Qf2 45.Kc1 Qg3–+) 38...Qg3 39.Kh1 gf3 40.Ne1 Rf6 (40...Rf6 41.Nf3 Rh6 42.Nh4 Rh4) 0–1. Fernandez,Daniel Howard (2380) – Bao,Qilin (2165), London ENG, 5th Classic Open, 2013. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e3 Nbd7 7.Be2 e5)

8.0-0 Re8 9.c4 e4 10.Ne1 Nf8 11.Qb3 h5 12.Nc2 N8h7 13.b5 Ng5 14.Nb4 Bh6 15.Nd5 Nd5 16.cd5 Bg4 17.Rfe1 Qf6 18.Rac1 Re7 19.Bf1 h4 20.h3 Bh3 21.gh3 Qf5 22.Qd1 Nh3 23.Bh3 Qh3 24.Nf1 Qf5 25.Nh2 Qd5 26.Qb3 Qf5 27.Rc2 g5 28.Kh1 Kh7 29.d5 g4 30.Qc3 Rg8 (30...Qd5? 31.Ng4 Qf5 32.Rg1+– (32.Nh6 Qh3 33.Kg1 Re5+=)) 31.Qf6 Qf6 32.Bf6 Rd7 33.Bh4 Bg7 (better is 33...Bg5!? 34.Bg5 Rg5+–) 34.Rec1+– Rc8 35.Ng4 Kg6 36.Bg3 f5 37.Nh2 Be5 38.Nf1 Kf6 39.Kg2 Bg3 40.Ng3 (40.Kg3?? Rg7 41.Kf4 Rg4) 40...Ke5 41.Rd2 Ra8 42.Rh1 a6 (42...Rg7+–) 43.Rh5 Rf7 44.Rd4 Rg8 45.Kf1 Rg4 46.ba6 ba6 47.Ke1 Rf8 48.Kd2 a5 49.Kc3 c5 (49...Rf7 50.f4 Rf4 51.ef4 Kf4 52.Ne2 Ke5 53.Rh8+–) 50.dc6 d5 51.c7 Rgg8 52.Nf5! Ke6 53.Rd5! Kd5 54.Ne7 Kd6 55.Ng8 Rg8 56.Rh7 Kc6 57.Kc4 Kb7 58.Kd5 Rf8 59.Rh2 Re8 60.Rh4 Rc8 61.Re4 Rc7 62.f4 Rc2 63.a4 Rf2 64.Ke6 Kc7 65.Rd4 Rf3 66.Rd3 Rh3 67.f5 1–0. Ibanez Terradellas,Eduardo (2340) – Garcia Cano,Antonio (2320), Centelles op, 1996. (=1.d4 d6 2.Nf3 g6 3.b4 Bg7 4.Bb2 Nf6 5.Nbd2 0-0 6.e3 Nbd7 7.Be2 e5)

8.0-0 Re8 9.c4 Qe7 10.Nb3 ed4 11.Nbd4 a5 12.Nb5 Ne5 (12...ab4? 13.Nc7 Ra6 14.Ne8 Qe8 15.Qe1+–) 13.a3 Nfg4 14.Ne5 Ne5 15.Qb3 c6 16.Nd4 ab4 17.ab4 (17.Qb4? c5 18.Qd2 cd4 19.ed4 Nc6–+) 17...Be6 18.Ne6 Qe6 19.Be5 de5 20.Ra3 Bf8 21.Rfa1 Rad8 22.c5 Qb3 23.Rb3 Rd2 24.Kf1 Red8 25.Ke1 e4 26.Rd1 Rd1 27.Bd1 Ra8 28.Bc2 f5 29.Kd2 Kf7 30.Rb1 Ra3 31.Bb3 Ke8 32.Kc2 Ra7 33.Bg8 h5 34.Rd1 b6 35.cb6 Rb7 36.Rb1 Rb6 37.Kc3 Rb8 38.Bc4 Bd6 39.h3 Be5 40.Kc2 Rc8 41.Kd2 Ke7 42.Rc1 Ra8 43.b5 cb5 44.Bb5 Ra2 45.Rc2 Ra1 ½–½. Petryanin,Andrei (2130) – Maksyutov,E (2350), Ufa Kopylov Memorial op, 2004. (=1.d4 g6 2.Nf3 Bg7 3.e3 Nf6 4.b4 d6 5.Bb2 0-0 6.Nbd2 Nbd7 7.Be2 e5)

8.c3 e4+= 9.Ng5 Qe7 10.Nh3 d5 11.a4 Nb8 12.b5 Rd8 13.Ba3 Qe8 14.Nf4 g5 15.Nh5 Nh5 16.Bh5 Qe6 17.Be2 Bf8 18.Bf8+/- Rf8 19.h4 f5 20.hg5+/- f4 21.Rh4 fe3= 22.fe3 Qf5 23.Rf4 Qg5 24.Qb3 Rf4 25.ef4 Qh4 26.Kd1 Be6 27.Ne4 Qh1= 28.Kd2 Qa1 29.Nf6 Kf7 30.Nh7 Nd7?? 31.Ng5+= Kf6 32.Ne6 Ke6 33.Bg4 Ke7 34.Bd7 Rg8 35.Bh3 Rg3 36.Qc2 Kd8 37.Qb3 Ke7 38.Qc2 Kd8 39.Qb3 ½–½. Stubljar,A (2040) – Filip,Ma (2050), Open, Ptuj SLO, 2007.

8.de5 de5 9.Ne5 Ne5 10.Be5 Qe7 11.Bc3 Rd8 12.Qc1 a5 13.ba5 Ne4 14.Ne4 Qe4 15.Bg7 Qg2 16.Rf1 Kg7 17.Qb2 Kg8 18.Qe5 Bh3 19.Rd1 Qc6 20.Rg1 Qc2 21.Rg3 Be6 22.Bf3 Bc4 23.Qa1 Rd1–+ 24.Qd1 Qa2 25.Bb7?? Qa5 26.Qd2 Qa1 27.Qd1 Qc3 (27...Qc3 28.Qd2 Ra1) 0–1. Hemmer,Christian (1710) – Van der Kemp,Michel (2280), RB–2009–0-00045, 2009.

8.de5 Ne5 9.Ne5 de5 10.Be5 Qe7 11.Nf3 Rd8 12.Qb1 Bg4 13.Qb2 a5 14.b5 Rd5 15.Bc3 c6 0–1. Zeh,Uwe – Priehn,Peter, DESC Meisterschaft, 2005. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 0-0 5.Nbd2 d6 6.Bb2 Nbd7 7.Be2 e5)

8.de5 Ng4 9.0-0 Nge5 10.Nd4 Qe7=.

8.de5 Ng4 9.c4 Nde5 10.Ne5 Ne5 11.Qb3 Be6 12.Bd4 Nc6 13.Bg7 Kg7 14.Qc3 Qf6 15.Qf6 Kf6 16.a3 a5 17.b5 Ne5 18.Rc1 ½–½. Albrecht – Juergens, 1981.

8.de5 Ng4 9.Nc4 Nge5 (9...Nde5 10.Nfe5 Ne5 11.0-0=) 10.Nfe5 (10.Bd4 b6+=) 10...Ne5 (worse is 10...Be5 11.Ne5 de5 12.Qd2+=) 11.Ne5 Be5 (11...de5 12.0-0+=) 12.Be5= de5 13.Qd8 (13.0-0 a5 14.b5 Qe7=) 13...Rd8+= 14.Bd3 (14.Rd1 Bf5+=) 14...a5 (14...Be6 15.a4+=) 15.b5 Be6 (15...Bg4 16.a4+=) 16.a4 Rd6 (16...f5 17.0-0-0+=) 17.0-0-0 Bd5 18.f3 (18.e4 Be6 19.Be2 Kf8+=) 18...Rad8 19.Be2 (19.Rd2 b6+=) 19...b6 (19...Kf8 20.Kb2+=) 20.Rd3 (20.e4 Be6+=) 20...Kf8+= 21.Rc3 (21.Rhd1 Ke7+=) 21...R8d7 (21...c5 22.Rd1+=) 22.Rd1 Ke7 (22...f5 23.Bc4 Bb7 24.Rd6 Rd6 25.Bd3=) 23.Bc4 (23.e4 Bb7=) 23...Bc4 (23...Ba8 24.Rcd3=) 24.Rd6 Rd6 25.Rc4 Kd7 26.g4 (26.f4 ef4 27.Rf4 f6=) 26...h6 (26...c6 27.bc6 Rc6 28.Re4+=) 27.f4= f6 (27...ef4 28.Rf4 Ke6 29.Re4 Kf6 30.Rf4 Ke7 31.Re4 Kd8 32.Rf4=) 28.Re4 (28.f5 g5=) 28...Ke6 (28...ef4 29.ef4 Rd5 30.Rc4=) 29.Rc4 Kd7 30.Re4 Rd5 (30...ef4 31.ef4 Rd5 32.Rc4=) 31.Rc4 ef4 32.Rf4 f5 33.h3 (33.c4 Re5 34.gf5 Rf5 35.Rf5 gf5=) 33...fg4+= 34.hg4 Re5 (34...Ke7 35.Rc4+=) 35.Kd2= h5 (35...Ke7 36.Rc4 Rd5 37.Ke2=) 36.gh5 gh5 37.Kd3 Kd6 (37...Rd5 38.Kc3=) 38.Kd4 (38.Rf8 Rd5 39.Kc4 Ke7=) 38...Re6 (38...Rd5 39.Kc3=) 39.Rh4 (39.e4 Rh6 40.e5 Ke7=) 39...Rh6 40.Ke4 (40.e4 Ke6=) 40...c6 (40...Ke6 41.Kf4=) 41.bc6 Kc6 42.Kf5 b5 (42...Kd6 43.Rd4 Kc7 44.Rh4=) 43.ab5 Kb5 44.e4 a4 45.e5 a3 46.e6 a2 47.Rh1 Kb4 48.e7 Rh8 49.Ke6 Kc3 50.Kd7 h4 51.e8Q Re8 52.Ke8 Kb2 53.c4 a1Q 54.Ra1 Ka1 55.c5 h3 56.c6 ½–½. Simonyi,Zoltan (2200) – Banovic,Ivan (2205), Druga League Srbije–Grupa Vojvodina, 2016. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Nbd2 Nbd7 7.Be2 e5)

8.de5 Ng4 9.h3 Nge5 10.Rb1 Nb6 (10...a5 11.b5=) 11.0-0 (11.c4 Bf5 12.e4 Nf3 13.Bf3 Bb2 14.ef5 Re8 15.Kf1 Bc3 16.Bb7 Rb8+=) 11...Na4 (11...a5 12.b5=) 12.Bd4 Nf3 13.Nf3 (worse is 13.Bf3 Bd4 14.ed4 Nc3-/+) 13...Nc3 14.Bc3 Bc3 15.Nd4 (15.Qd3 Bg7=) 15...c5 (15...a5 16.b5=) 16.Nb5 cb4 17.Nc3 bc3 18.Qd4 Qa5 19.Bc4 (19.Bf3 Rb8=) 19...Qe5 (19...b6 20.Rb5 Qa3 21.Rb3 Qa2 22.Rc3+=) 20.Rfd1 Bf5 21.Qd6 Qd6 22.Rd6 Bc2 23.Rc1 Ba4 24.Rc3+= Rac8 25.Rdd3 Rc4 26.Rc4 Bb5 27.Rdc3 Bc4 28.Rc4 Rd8 ½–½. Arkell,K – Howell,J, Swansea, 1995.

6.e4 Nbd7

7.Bd3 e5 8.0-0 ed4 9.Bd4 c5 10.bc5 Nc5 11.Re1 Nd3 12.cd3 b6 13.a4 Bb7 14.Qb3 d5 15.e5 Nd7 16.a5 Re8 17.Qb2 Qe7 18.Nb3 Qb4 (18...Ba6 19.Qd2=) 19.Bc3 Qg4 20.h3 Qf4 21.ab6 ab6 22.Ra8 Ra8 23.e6 Bc3 24.Qc3 fe6 25.Re6 Rc8 26.Qe1 d4 27.Re8+/- Re8 28.Qe8 Nf8 29.Nfd4 Bd5 30.Qe3 Qf7 31.Nd2 Qb7 32.Ne4 Be4 33.de4 b5 34.e5 b4 35.e6 Qe7 36.f4 h6 37.Kh1 Ne6+/- 38.Qb3 Kf7 39.Ne6 Qe6 40.Qb4 Qd5 41.Qe1 Kf6 42.Qh4 Kg7 43.Qe7 Kg8 44.Kh2 h5 45.Kg3 Qd3 46.Kh4 Qf1?? 47.Kg5 h4 48.Qe8 Kg7 49.Qg6 Kf8 50.Qd6 Kf7 51.Qd5 Ke7 52.Qe4 Kf7 53.Kh4 1–0. Arkell,Keith C (2405) – Tegzes,Laszlo (2070), High Wycombe ENG, Open, 2011.

7.Bd3 Nh5 8.0-0 c5 9.bc5 Nc5 10.a4 d5 11.Re1 Nd3 12.cd3 Nf4 13.Nb3 b6 14.Bc1 Ne6 15.Ba3 Bb7 16.Qd2 Rc8 17.e5 a5 18.Nc1 Bc6 19.Qd1 Qd7 20.Bb2 Bh6 21.Ne2 Rc7 22.Qb3 Rfc8 23.h4 (23.Qb6? Rb7 (23...Ba4?! 24.Qa5 Ra7 25.Qb4=) 24.Qa5 Rb2–+) 23...Ba8 24.g3 (24.Bc1 Bc1 25.Rac1 Rc1 26.Rc1 Rc1 27.Nc1 Bc6=) 24...Ng7 (24...Rc6!?-/+) 25.Bc1= (25.Qb6? Rb7 26.Qa5 Rb2–+) 25...Bc1 26.Rac1 Rc1 27.Rc1 Rc1 28.Nc1 Qc7 29.Ne2 Bc6 30.Nc3 Qb7 31.Qb2 Ne6 32.h5 Kg7 33.Qc1 h6 34.hg6 fg6 35.Qb2 Qa6 36.Qc2 b5 37.ab5 Bb5 38.Qb3 Nc7 39.Qa3 (39.Nd5? Qe6 40.Ne1 Bc6–+ (40...Nd5? 41.Qb5 h5 42.Qa5+–); worse is 39.Nb5 Qb5 40.Qc3 Ne6+=) 39...Kf7 40.e6 Ke6 41.Ne5 g5 (41...Bd3? 42.Na4 Kf6 43.Nc5+– (43.Qd3?! Qd3 44.Nd3 Nb5=)) 42.Qc5 Qb7 43.Nb5 Nb5 44.Nc6 Kd7 45.Na5 (worse is 45.Qd5 Kc7 46.Ne7 Qd5 47.Nd5 Kc6 48.Ne7 Kd7-/+) 45...Qa6 46.Qd5 Nd6 47.Nc4 Qb5 (better is 47...e6!? 48.Ne5 Ke7+/-) 48.Ne5+– Kc7 49.Qe6 Nc8 50.Qh6 Qd5 51.Qg5 Qd4 52.Qe3 (52.Qe3 Qe3 53.fe3+–) 1–0. Arkell,Keith (2440) – Franklin,Samuel (2355), Purley ENG, Big Slick GM, 2013. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

7.Be2 c5 8.bc5+= dc5 9.c3 e5 10.0-0+/- cd4 11.cd4 ed4 12.Bd4 Qa5 13.Rc1+/- Nb6 14.Nb3 Qa4 15.Nc5 Qd1 16.Rfd1 (worse is 16.Bd1 Rd8+=) 16...Be6 (16...Rd8 17.Bb5+–) 17.e5 (17.Ne6!? fe6 18.Rc7 Bh6+–) 17...Nfd5 18.Ne6 fe6 19.Ng5 Rae8 20.Bg4 Bh6 21.Ne6 Bc1 22.Nf8 Kf8 23.Rc1 Rd8 24.g3 Ne7 25.Bc5 Kf7 26.e6 Kf6 27.Be7 Ke7 28.Rc7 Kf6 29.Rh7 Nd5 30.Rb7 Rc8 31.Rf7 Kg5 32.Bf3 Nb4 33.h4 Kh6 34.e7 Re8 35.a3 Nd5 36.Bd5 Rc8 37.g4 Rc2 38.e8Q Rc1 39.Kg2 (39.Kg2 Rg1 40.Kg1 a6 41.Qf8#) 1–0. mrkt – supersuper99, internet, 2011.

7.Be2 e5 8.d5 Ne8 (8...a5!?+=) 9.c4 f5 10.Qc2 Ndf6 11.Bd3 fe4 12.Be4 Ne4 13.Ne4 Bf5 14.0-0 Nf6 15.Nfd2 c6 16.Qd3 Kh8 17.Rae1 cd5 18.cd5 Ne4 19.Ne4 Qb6 20.Qe3 Be4 21.Qe4 Rf4 22.Qc2 Qb4 23.Re2 Qb5 24.Rd1 Rc4 25.Qd2 Rac8 26.g3 Qa4 27.Qd3 b5 (27...Qa2?! 28.Be5 Qa4 A) worse is 29.Bd6 Rd4 30.Qd4 Bd4 (worse is 30...Qd4 31.Rd4 Bd4 32.Be7+=) 31.Rd4 Qa6 (31...Qd4?! 32.Be5 Qe5 33.Re5=) 32.Be5 Kg8-/+; B) 29.Bg7 Kg7 30.Re7 Kg8 31.Rb1+=) 28.Rdd2 Kg8 (28...Qa2?! 29.Be5 Rc1 30.Kg2+=) 29.Kg2 Qa5 (29...Qa2 30.Be5 Qd2 31.Qd2 (31.Rd2?! Be5 32.f4 Bg7+=) 31...Be5 32.Qa5+–) 30.a3 Qa4 31.Qe3 a6 32.Qg5 R4c7 33.h4 Rf7 34.h5 gh5 35.Qh5 Qc4 36.Qh3 (36.Re3 Rcf8-/+) 36...Rcf8 (better is 36...Rf6 37.Kg1 Rc5–+) 37.Qe6= Qc7 38.Rc2 Qb8 39.Rc6 Kh8 40.Rd6?? (better is 40.Qd6 Qa7 41.Be5 Rf2 42.Kh3 Be5 43.Qe5 (worse is 43.Re5 Rg8 44.Re7 Rh2 45.Kh2 Qf2 46.Kh3 Qf1 47.Kh2 Qf2 48.Kh3 Qf1 49.Kh2 Qf2=) 43...Kg8 44.Re4+/-) 40...Rf6–+ 41.Rd7 (41.Ra6 Re6 42.Re6–+) 41...Re6 42.de6 Qb6 43.f4 (43.Rc2 Kg8–+) 43...Qe6 44.Red2 h5 45.Rc7 (45.R7d6 Qf5 46.Be5 Be5 47.fe5 a5–+) 45...Rf7 (better is 45...Qg4!? 46.Kh2–+) 46.Rc1 (46.Rf7 Qf7 47.Be5 Be5 48.fe5–+) 46...ef4 0–1. Simonyi,Z (2245) – Radovanovic,D (2345), Silver Lake Open, 2015. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6 6.e4 Nbd7)

7.Be2 e5 8.de5 Ng4 9.0-0 Nge5 10.Ne5 Ne5 11.Rb1 Qh4 12.f4 Ng4 13.Nf3 Qe7 14.Bg7 Kg7 15.Qd4 Nf6 (15...f6 16.h3 Nh6 17.Bc4+=) 16.Bd3 Be6 17.c4 Kg8 18.f5 Bd7 19.Rbe1 a5 20.b5 Rad8 21.Qc3 b6 22.e5 de5 23.Ne5 Qd6 24.fg6 fg6 25.c5 Qc5 26.Qc5 bc5 27.Bc4 Kg7 28.Nd3 Rfe8 29.Nc5 Bf5 30.h3 h5 31.Nb7 Rd2 (31...Ra8 32.a4+/-) 32.Re8 Ne8 33.Re1 Kf8 34.Re2 (better is 34.Na5!? Nd6 35.Rf1+/-) 34...Rd4= 35.Na5 Nd6 36.Bb3 Nb5 37.Re5 ½–½. Mateuta,Gabriel (2440) – Jianu,Vlad Cristian (2410), ROM–chT Tusnad, 2004. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nbd2 d6)

7.Be2 Re8 8.0-0 e5 9.d5 Rf8 10.Ne1 Bh6 11.f3 Nh5+= 12.Nd3 Nb6 13.Bc1 Be3 14.Kh1 f5 15.Nb3 Bc1 16.Qc1 f4 (16...Qe7 17.a4=) 17.Na5 (17.c4 Qh4 18.Re1 Bd7+=) 17...Qh4= 18.Kg1 g5 19.Nf2 (19.c4 Ng3 20.Re1 Ne2 21.Re2 g4+=) 19...Nd7 (19...Rf6 20.Qd2 Rh6 21.h3=) 20.Nh1 (20.c4 Nhf6+=) 20...Ng7 21.Qe1 Qh6 22.Qc3 Ne8 23.Nf2+= Ndf6 24.g3 Kh8 25.Kg2 fg3 26.hg3 g4 27.fg4+= Rg8 28.Rh1 Qg5 29.Rh4 Rg7 30.Rd1 c6 31.dc6+/- bc6 32.Nc6 Bb7 33.b5 Rc8 34.Qd2 Bc6+= 35.bc6 Rc6 36.Qg5 Rg5 37.c4 Nc7 38.Nh3 Rg7 39.g5 Nd7 40.Rb1 Nb6 41.Rh6 Kg8 42.a4 Kf7 43.a5+/- Nd7 44.Bg4 Ke7+= 45.Bf5 Rc4 46.Rb7 a6 47.Bh7 Nb5 48.Bf5 Rc7 49.Re6 Kd8 50.Rc7 Kc7 51.g6 Kc6 52.Re8 Nc7 53.Rc8 Nc5 54.Ng5 d5 55.ed5 Kd5 56.Kf3 Nb3? 57.Rd8 Kc6 58.Nf7 Na5 59.Ne5 Kb6 60.Rd6 Kb7?? 61.Rd7+– Rg8 62.g7 Nc6 63.Be4 Kc8 64.Bc6 Ne8 65.Ra7 (65.Ra7 Nc7 66.Bb7 Kd8 67.Ba6 Rg7 68.Bc4+–; 65.Bb7 Kb8 66.Nc6#) 1–0. Arkell,K (2520) – McShane,L (2545), Premier Hastings ENG, 2002.

5.e3 b6

6.b5 c5 7.dc5 bc5 8.Be2 Bb7 9.0-0 d6 10.c4 e5 11.Nfd2 Nbd7 12.Nb3 Qc7 13.a4 e4 (13...d5 14.cd5 Bd5 15.Nc3=) 14.a5 (14.Nc3 Ne5+=) 14...Rad8 15.Nc3 Ne5 16.b6 (16.Qc2 d5 17.cd5 Nd3=) 16...ab6= 17.Nb5 Qe7 18.ab6 d5 19.Qc2 dc4 20.Be5 (20.Bc4!? Nfd7 21.Be2=) 20...cb3+= 21.Qb2 Qe6 22.Ra7 Rd7 23.Rd1 Rfd8 24.Rd6 Rd6-/+ 25.Nd6 Rd6 26.Rb7 Rb6 27.Bc4? Qc4–+ 28.Rb6 Nd7 29.Bg7 Nb6 30.Bh6 f6 31.h3 Kf7 32.Qa3 Na4 0–1. Bates,Ri (2375) – Agdestein,S (2585), 4NCL, West Bromwich ENG, 2004.

6.c4 Bb7 7.Be2 d6 8.Qb3 Nbd7 9.0-0 e6 10.Nc3 Ne4 11.Ne4 Be4 12.Nd2 Bb7 13.a4 c5 14.Bf3 Bf3 15.Nf3 a5 16.dc5 dc5 17.Bg7 Kg7 18.b5 Qf6 19.Rad1 Rfd8 20.Rd3 Nf8 21.Rfd1 Rd3 22.Qd3 Ra7 23.Qc2 Rd7 24.Rd7 Nd7 25.h3 Ne5 26.Ne5 Qe5 27.h4 h6 28.g3 g5 29.hg5 hg5 30.Kg2 Kf8 31.Kh2 Ke7 32.Kg2 f5 33.Kh2 g4 34.Kg2 Qa1 35.e4 Qe5 36.ef5 ef5 37.Qd3 Qe4 38.Qe4 fe4 39.Kf1 Ke6 40.Ke2 Kf5 41.Kd2 ½–½. Reefschlaeger,Helmut (2355) – Timoscenko,Gennadij (2470), Seefeld op, 1998. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 b6)

6.Nbd2 c5 7.b5 Bb7 8.Be2 d6 9.0-0 Nbd7 10.c4 e6 11.a4 cd4 12.ed4 d5 (12...Qc7 13.Re1=) 13.a5 (13.Ba3!?+/-) 13...dc4= (worse 13...ba5 14.c5 Bc8 15.Bc3+/-) 14.Nc4 Bd5 15.Ba3 Bc4 16.Bc4 Re8 17.Re1 Rc8 18.Ba2 ba5 19.Ne5 Ne5 20.de5 (20.Re5? Nd5-+) 20...Nd5 21.Bd6 Nc3 22.Qd3? (better 22.Qg4-/+) 22...Na2-+ 23.Ra2 Qb6?? (better 23...Be5 24.Rd2 Bc3-+) 24.h4 (24.Ra4 Red8 25.Qe2 a6 26.ba6 Ra8=) 24...Red8=+ 25.Rb1?? (better 25.Qe2=+) 25…Be5!-+ 0-1. Medar,Marti (2015) - Sepp,O (2430), 19th Puhajarve Rapid, 2018. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0)

6.Nbd2 c5 7.dc5 bc5 8.b5 d5 9.c4 Nbd7 10.Be2 a6 11.a4 ab5 12.ab5 Bb7 13.0-0 Nb6 14.Qc2 Qd6 15.Rfd1 e6 16.cd5 ed5 17.Ra8 Ba8 18.Bf6 Qf6 19.Qc5 Na4 20.Qb4 Nc3 21.Re1 Re8 22.Bf1 Qb6 23.Nb3 Ne4 24.Nbd4 Bb7 25.Rc1 Bh6 26.Qb3 Qd6 27.h3 f5 28.Rc2 f4 29.ef4 Bf4 30.b6 Re7 31.Qb5 Nf2 32.Rf2 Be3 33.Nc2 Bf2 34.Kf2 Re6 35.Ncd4 Qb6 36.Qd7 Re4 37.Kg3 Qf6 38.Qc7 Qe7 39.Qb8 Kg7 40.Kf2 Qf7 41.Bb5 Re7 42.Kg1 Qf6 43.Kh2 Ba6 44.Bc6 Bc4 45.g4 Qf8 46.Qg3 Kg8 47.Kg2 Re4 48.Qf2 Qf4 49.Qb2 h5 50.gh5 gh5 51.Qb7 h4 52.Bd5 Bd5 53.Qd5 Kh8 54.Qh5 Kg8 55.Qd5 Kh8 56.Qh5 Kg8 57.Nf5 Re2 58.Kf1 Re6 59.Kf2 Qc7 60.Qg5 Kf8 61.N3h4 Qc5 62.Kf1 Qb5 63.Kg1 Re1 64.Kh2 Qe5 65.Qg3 Re2 66.Ng2 Qf5 67.Qd6 Kf7 68.Qc7 Kg6 69.Qg3 Kf7 ½–½. Polugaevsky – Nunn, Hastings 1993.

6.Be2 c5 7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d6 11.0-0 Bb7 12.c4 cd4 13.ed4 (13.Qd4? Ne8 14.Qd2 Ba1–+; 13.Nd4?! Qc7=; 13.Bd4?! Qc7=) 13...e6 14.Nbd2 Nbd7 15.Bb2 Qc7 16.Qb3 Re8 17.Ra1 e5 18.d5 Bh6 (18...Nc5 19.Qe3=) 19.Nf1 Nc5 20.Qd1 Nce4 (20...Bc8 21.Ne3=) 21.N3d2 Nc5 22.Ra3 Ra8 ½–½. Granda Zuniga,J (2640) – Bacallao Alonso,Y (2550), 39th La Roda Open, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 b6)

6.Be2 c5 7.b5 d5 8.0-0 Nbd7 9.c4 Bb7 10.Nbd2 cd4 11.Nd4 Nc5 12.a4 a5 13.N4b3 Rc8 14.Nc5 Rc5 15.Bd4 Rc8 16.Rc1 Qd6 17.cd5 Bd5 18.Nc4 Bc4 19.Bc4 Ne4 20.Qg4 Nc5 21.Rfd1 Bd4 22.ed4 Nd7 23.h4 Kg7 24.Be2 Rc1 25.Rc1 Nf6 26.Qg5 Qd4 27.h5 h6 28.Qe3 Qe3 29.fe3 Rd8 30.hg6 Kg6 31.Rc7 Rd7 32.Rc6 Rd6 33.Rc7 Nd5–+ 34.Rb7 Kf6 35.Bf3 Ne3 36.Kf2 Nc4 37.Bc6 Rd4 38.Ke2 Ke6 39.Kf1 f5 40.g3 Kf6 41.Bf3 Rd6 42.Bc6 e5 43.Ke2 e4 44.g4 fg4 45.Be4 h5 46.Rc7 Ne5 0–1. Slabek,Grzegorz (2065) – Ziebinski,Bartosz (1950), Rewal Poland, 2010.

5.e3 d5

6.Bd3 c6 7.Nbd2 Bg4 8.c4 Nbd7 9.Qb3 Bf3 10.Nf3 e6 11.0-0 dc4 12.Bc4 Nb6 13.Bd3 Qd5 14.Qc2 Rfd8 15.a4 Rac8 16.Rfd1 Qd7 17.e4 a6 18.Qb3 Na8 19.Ne5 Qe8 20.f4 Nc7 21.Rf1 Kh8 22.Rf3 Ng8 23.Rh3 f5 (23...Ne7!?+/-) 24.ef5+– Be5? (better is 24...gf5 25.Bf5! Nh6+–) 25.fg6 (25.de5?! gf5 26.Bf5 Rd7+–; 25.fe5?! gf5 26.Rf1 Ne7+/-) 25...h6 26.fe5 Qe7 27.Rf1 Rf8 28.Bc1 Rf1 29.Bf1 Kg7 30.Qf3 Rf8 (30...a5+–) 31.Qh5 (31.Qh5 Rf1 32.Kf1+–) 1–0. Voss,Ingo (2145) – Favre,Bruno (2015), Seefeld op, 2005. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

6.Be2 c6 7.a4 (7.0-0 Qd6=) 7...a6 (7...a5 8.b5=) 8.0-0 Bf5 (8...Qd6 9.Ba3=) 9.c4 (9.Nh4 Bc8=) 9...Nbd7 (9...dc4 10.Bc4 Nd5 11.Qb3=) 10.Nbd2 Nb6 (10...dc4 11.Nc4 Nd5 12.Qb3+=) 11.Ne5 (11.c5 Nbd7+=) 11...Nfd7 (11...dc4 12.Ndc4 Nfd5 13.Qe1=) 12.Nef3 (12.Nd7 Nd7 13.a5 Nf6+=) 12...Nf6 (12...Nc4 13.Nc4 dc4 14.Bc4=) 13.Qb3 (13.c5 Nbd7+=) 13...Ne4 (13...dc4 14.Nc4 Be6 15.Rac1=) 14.Ne4 Be4 15.Nd2 (15.c5 Bf3 16.Bf3 Nc4+=) 15...dc4= 16.Qc3 (16.Nc4 Bd5=) 16...Bd5 (16...Bd3 17.Bd3 cd3 18.e4=) 17.a5 Nd7 18.e4 Be6 19.Nc4 Bc4 (19...f5 20.f3+=) 20.Bc4+/- e5 (20...Rc8 21.Rfd1+/-) 21.d5 cd5 22.Bd5 Rc8 23.Qb3 (23.Qf3 Rc7+/-) 23...Rc7 24.Rfd1 Qe7 25.b5 Nc5 26.Qb4 Rfc8 (26...ab5 27.Qb5 Rfc8 28.Bc1+/-) 27.b6 Rd7 28.Rac1 Bf8 29.Qc3 Re8 (better is 29...Rcd8 30.Qe3 Na4+/-) 30.Ba3 Rc8 31.Qe3 Qh4 32.Bc5 (32.Rc2!? Qh5 33.Rf1 Rcd8 34.Bc5 Bh6+–) 32...Bh6 33.Qg3 (33.Qf3 Bc1 34.Rc1 Qe7+–) 33...Qg3 34.hg3 (34.fg3?! Rc5 35.Rc5 Be3 36.Kf1 Bc5=) 34...Bc1 35.Rc1 Kg7 (35...h6 36.f4 ef4 37.gf4+–) 36.Kf1 (36.f4!? Rcd8+–) 36...Kg8 37.Ke2 Kg7 (37...h6 38.Rc3 Kh7 39.Bb4 Rc3 40.Bc3+–) 38.f4 f6 (38...Re8+–) 39.Be6 Rcd8 40.Bd7 Rd7 41.fe5 (41.Bb4 Kf7+–) 41...fe5 42.Be3 Rd6 (42...Kf6+–) 43.Rc7 Kf6 44.Rb7 g5 (44...Ke6 45.Re7! Kf6 46.b7+–) 45.Rc7 Kg6 (45...Rd8+–) 46.b7 Kh6 47.b8Q Kh5 (47...Rd2 48.Kf3 Rd6 49.Qf8 Kh5 50.Rh7 Kg6 51.Qf5) 48.Rh7 Kg4 49.Qc8 Kg3 (49...Re6 50.Qe6 Kg3 51.Qh3) 50.Qh3 1–0. Slabek,Grzegorz – Drobka,Marcin, Rubinstein Festival – Open C, 2016. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d5)

6.Be2 Nbd7 7.a4 Ne4 8.Nbd2 Ndf6 9.c4 c6 10.0-0 Be6 11.b5 Qc7 12.cd5 cd5 13.Qb3 Ng4 14.g3 (14.Qb4 Bf5+=) 14...Rfc8 15.Ba3 Bh6 16.Rac1 Qd8 17.Qb4 (better is 17.Rc8!? Rc8 18.Kg2=) 17...Rc1 18.Bc1 (18.Rc1!? Ngf2 19.Nf1-/+) 18...Nef2–+ 19.Rf2? (better is 19.Kg2 Ne4 20.Ne4 de4 21.Ne5 Ne3 22.Be3 Be3 23.Nf7 Bf7 24.Rf7 Kf7 25.Qb3 Kg7 26.Qe3–+) 19...Be3 20.Nb3 Bf2 (worse is 20...Nf2 21.Be3 Ne4 22.Ng5+=) 21.Kg2 Be3 22.Ng5 Bg5 (22...Bc1!? 23.Ne6 Ne3 24.Kf2–+) 23.Bg5 Nf6 24.Nc5 Bc8 25.Bf3 b6 26.Nd3 Bb7 27.h4 Rc8 28.Ne5 Rc2 29.Kh3 h5 30.Bg2 Kg7 31.Qb3 Qc8 32.Kh2 Qc3 33.Bf6 ef6 34.Qc3 Rc3 (34...Rc3 35.Nc6 Bc6 36.bc6 Rc6 37.Bd5 Rd6–+) 0–1. Slabek,Grzegorz (2050) – Ulanowski,Karol (2140), XXIV Miedzynarodowy Festiwal Szachowy C Poland, 2014. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0)

6.Be2 Ne4 7.c4 c5 (better is 7...dc4!? 8.Bc4 Nd6+=) 8.bc5+=. truss (2425) – marcosarrudaa (2545), net–chess.com, 2015. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d5)

5.e3 d6

6.Bc4 Bg4 7.0-0 e6 8.h3 Bf3 9.Qf3 (worse is 9.gf3 Nd5+=). rogeliovargas (2260) – yannigator (1995), net–chess.com, 2011.

6.Nbd2 Nbd7 7.Rb1 e6 8.Bd3 Qe7 9.0-0 e5 10.e4 Nh5 11.Re1 Nf4 12.Bf1 ed4 13.Bd4 Ne5 14.Ne5 Be5 15.Nc4 Rd8 16.Be3 Be6 17.Qd2 Qf6 18.Ne5 de5 19.Qc3 Rd7 20.Rbd1 Rad8 21.Rd7 Rd7 22.a4 a6 23.b5 ab5 24.Bb5 c6 25.Bf1 h5 26.a5 Kh7 27.a6 ba6 28.Qc6 Qe7 29.Ba6 Qb4 30.c3 Qa5 31.Rc1 Qd8 32.Bf1 Rd1 33.Rd1 Qd1 34.Bf4 ef4 35.Qb5 f3 36.Qd3 Qc1 37.h3 h4 38.Kh2 Qe1 39.c4 Kh6 40.Qe3 Qe3 41.fe3 fg2 42.Kg2 Kg5 43.c5 Kf6 44.c6 Ke5 45.c7 Bc8 46.Bc4 f6 47.Bf7 g5 48.Bg6 Kd6 49.Bf5 Bf5 50.ef5 Kc7 51.e4 Kd7 52.Kf2 Kd6 53.Ke2 ½–½. Arkell – Ye Jiangchuan, London 1997.

6.Bd3 Nc6 7.a3+=.

6.Bd3 Nbd7 7.0-0 (7.Nc3 Re8=) 7...Re8 (7...e5 8.Nc3=) 8.Nbd2 e5 9.de5 de5 (9...Ng4=) 10.Ne4 (better is 10.e4!?=) 10...Ne4-/+ 11.Be4 Nf6 12.Nd2 Qe7 13.a3 Ne4 (13...a5 14.Bd3-/+) 14.Ne4 Be6 (14...a5 15.Bc3-/+) 15.Qe2+= b6 16.c4 (16.Rfd1 Rad8+=) 16...a5-/+ 17.b5 f5 (17...Qh4 18.f3-/+) 18.Nd2 (18.Nc3 Rad8 19.Rfd1 Qc5+=) 18...Qc5 (18...Rad8 19.Rac1-/+) 19.Rac1 (19.Rfc1 a4-/+) 19...a4 (19...Red8 20.Nf3-/+) 20.Nf3+= h6 (20...Bf6 21.h4+=) 21.Qc2 c6 (21...Red8 22.Qc3+=) 22.bc6= Rec8 (better is 22...Bf7=) 23.Qc3 (better is 23.Qb1!? Rc6 24.Qa1 Bc4 25.Ne5 Be5 26.Be5=) 23...Ra5-/+ 24.Rc2 (24.Rfd1 Qc6 25.Qb4 A) 25...Bc4 26.Rd6 Qc5 27.Rg6 (worse is 27.Rb6 Qb4 28.Rb4 Ba6=) 27...Qb4 28.ab4=; B) 25...Rc5-/+) 24...Qc6 25.Rfc1 Rc5 26.Qb4 g5 (26...Rd8 27.h3-/+) 27.h3 Qc7 (27...Rc7 28.Rd1-/+) 28.Qa4 b5 29.Qa6 Bc4 (29...Qc6 30.Qc6 R8c6 31.cb5 Rc2 32.bc6 Rb2 33.c7=) 30.Qg6= Qf7 (30...Qe7 31.Nd2= (31.Qf5? e4 32.Ne5 Be5 33.Be5 Qe5 34.Qg6 Qg7 35.Qe4 Re5–+)) 31.Qf7 Kf7 32.a4 ba4?? (better is 32...e4 33.Bg7 ef3 34.ab5 Kg7 35.gf3 Kf6+=) 33.Nd2+– Rb5 (33...Ke6 34.Nc4 Rb5 35.g4+–) 34.Ba3 Bf8 (34...Bf6 35.Rc4 Rc4 36.Rc4+– (worse is 36.Nc4 Rb3+–)) 35.Bf8 (worse is 35.Rc4 Rc4 36.Nc4 Ba3 37.Na3 Rb3+–) 35...Kf8 36.Rc4 Rc4 37.Rc4 (better is 37.Nc4 e4 38.Ra1+–) 37...Rb2+= 38.Nf3 a3 39.Ra4 (worse is 39.Ne5 a2 40.Ra4 Rb1 41.Kh2 a1Q 42.Ra1 Ra1-/+) 39...a2 40.Kh2 e4 (worse is 40...Rf2 41.Ne5 Rd2 42.Ra7+–) 41.Nd4 Rf2? (better is 41...f4+=) 42.Kg3+– Rd2 (42...Rb2 43.Nf5 Rc2 44.Ra7+–) 43.Nf5 h5 44.h4 (44.Ra7!? h4 45.Kh2 Ke8+–) 44...gh4+/- 45.Nh4 Kf7 (45...Ke7 46.Kf4 Kd6 47.Ra5+/-) 46.Kf4+– Rb2? (better is 46...Ke6 47.Ke4 Kd6+–) 47.Ra6 Ke8 48.g3 Kd8 49.Ke4 Kc7 (49...Kc8 50.Kf4+–) 50.Kf4 Kb7 (50...Rf2 51.Nf3+–) 51.Ra3 Kc6 52.Nf5 (better is 52.e4!? Kb5 53.Ra8+–) 52...Kb5 53.Nd4 (53.Kg5 Kb4 54.Ra7 Kb5+–) 53...Kc4 (53...Kb4 54.Ra6 Kc3 55.Ke4+=) 54.Ke4 (54.Kf3 Kb4 55.Ra8 Kc3 56.Ne2 Kd2+–) 54...Rg2 ½–½. Salem,Mahjob (2090) – Farley,Terry (2200), 42nd Olympiad, 2016. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6)

6.c4

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 TESTJ500 6.d4).

6.c4 Nbd7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7).

4.d4 c6

5.c4 0-0 6.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4).

5.c4 d6 6.e3 0-0 7.Nc3 Nbd7 8.Be2 Qc7 9.0-0 e5 10.Qc2 Re8 11.Rac1 ed4 12.Nd4 c5 13.Ndb5 Qb8 14.bc5 Nc5 15.Rcd1 Bf5 16.Qc1 Nfe4 17.Ne4 Bb2 18.Qb2 Ne4 19.f3 Nc5 20.e4 Bd7 21.Nd6+– Rd8 22.Rd5 b6 23.Rfd1+– a6 24.Qf6 Rf8 25.a3 Be6 26.R5d2 Qc7 27.Kh1 Nb3 28.Rb2 Nc5 29.f4 Rad8 30.e5 Rd7 31.Rc2 Na4 32.Bf3 Nc5 33.Bd5 Bg4 34.Rb1 Be6 35.Rd2 Rdd8 36.Rbd1 Rd7 37.Qh4 Rfd8 38.Qg5 Nb3 39.Rd3 Nc5 40.Rg3 Re7 41.Qf6 Rd6 42.ed6 Qd6 43.Re1 Nd7 44.Qh4 Kh8 45.f5! Bd5? 46.Qe7 Qe7 47.Re7 Bc6 1–0. Crafty 19.01 – EXchess 3.11, 2004.

5.Nbd2 a5 6.a3 d5 7.e3 ab4 8.ab4 Ra1 9.Qa1 0-0 10.b5 Bf5 11.c4 cb5 (11...Ne4 12.Qa2=) 12.cb5= Nbd7 13.Be2 Ne4 14.0-0 Nd2 15.Nd2 Qb6 (15...Qa8 16.g4 Be6 17.Bc3=) 16.Rc1+= Nf6 17.Qa3 Re8 18.Nb3 Ne4 19.Nc5 Rc8 20.Ne4 Rc1 21.Bc1 Be4 22.f3 (22.Qe7? Bf8 23.Qd7 Qa5–+) 22...Bf5 23.Qa8 Bf8 24.e4 (24.Ba3!? Qc7 25.g4+=) 24...Qd4= (24...de4?? 25.Bh6 Bc8 26.Qc8 Qd4 27.Kf1 Qa1 28.Kf2 Qd4 29.Kg3 Qd6 30.Kg4+–) 25.Kf1 Qc3 (25...de4?? 26.Bh6 Bc8 27.Qc8 Qa1 28.Kf2 Qd4 29.Ke1 Qb4 30.Kf1+–) 26.Bh6 Bc8 27.Bf8 Qc1 28.Kf2 Qc5 ½–½. Shepelev,I (2115) – Riegler,Dieter (2130), Chennai IND, 2012. (= 1.d4 (A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems) 1...Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 c6).

5.c4 a5

6.b5 cb5 7.cb5 a4 8.Na3 d5 9.e3 Ne4 10.Nd2 Bf5 11.Ne4 Be4 12.f3 Bf5 13.Bd3 Bd3 14.Qd3 0-0 15.0-0 Nd7 16.Rac1 Qb6 17.Rc2 Rfc8 18.Rfc1 Qd8 19.Rc8 Rc8 20.Rc8 Qc8 21.Qc3 Qc3 22.Bc3 e6 23.Bb4 Bf8 24.Bf8 Kf8 25.Kf2 e5 26.Ke2 Ke7 27.Kd3 Kd6 28.Kc3 f5 29.f4 ef4 30.ef4 Nf6 31.Kb4 Ng4 32.Ka4 Nh2 33.Ka5 Kc7 34.Nc2 Ng4 35.b6 Kc6 36.Nb4 Kd6 37.Kb5 Ne3 38.a4 Nc4 39.Nc2 Ke6 40.a5 Nd6 41.Kc5 Ne4 42.Kb4 Nd6 43.a6 1–0. Kozomara – Savon.

6.b5 cb5 7.cb5 d6 8.e3 0-0 9.Be2 Nbd7 10.0-0 Nb6 11.Nbd2 a4 12.a3 Bf5 13.Rc1 Bd7 14.Qc2 Rc8 15.Qb1 Rc1 16.Rc1 (worse is 16.Qc1 Qe8-/+) 16...Qb8 17.e4 Rc8 18.d5 Rc1 19.Qc1 Qc8 20.Qc8 Nc8 21.Bd4 Ne8 22.Nb1 f5 23.ef5 Bf5 24.Nc3 Bc2 25.Bg7 Kg7 26.Nd4 Bb3 ½–½. Slabek,Grzegorz (2070) – Jopek,Krzysztof (1865), Cracovia Poland, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 c6)

6.b5 cb5 7.cb5 d6 8.e3 Nbd7 9.Be2 Nb6 10.0-0 0-0 11.Nbd2 Bf5 12.Nc4 a4 13.Rc1 Bd7 14.Nb6 Qb6 15.Ba3 (15.Qd2 Nd5=) 15...Bb5+= 16.Rb1 Be2 17.Qe2 Qa7 18.Qb5 Rfb8 19.Rfc1 Ne8 20.h4 Qa6 21.h5 Qb5 22.Rb5 gh5 23.Ng5 Ra7 24.Rb6 Nf6 25.Rb5 Bf8 26.Rc7 Ne8 27.Rd7 Nf6 28.Rc7 h6 29.Nh3 e6 30.Nf4 d5 31.Bc5 Bc5 32.dc5 Ne8 33.Rd7 Nf6 (33...Rc8 34.Nh5 Kf8 35.g4-/+) 34.Rc7+= Ne8 35.Rd7 Rc8 36.Nh5 Kf8 37.Rdb7 Rb7 38.Rb7 Rc5 39.Ra7 Rc4 40.g3 Nc7 41.Nf6 Ke7 42.Ng8 Kd6 43.Kg2 Kc6 44.Ne7 Kd7 45.Ng8 Kc8 46.Nf6-/+ Rb4 47.Kf3 Kb8 48.Ra5 Kb7 49.Nd7? Kc6–+ 50.Ne5 Kb6 51.Ra7 Re4 52.Rc7 Kc7 53.Nf7 h5 54.Ng5 Re5 55.Nh3 Rf5 56.Ke2 e5 57.Kd3 Kd6 58.f4 e4 59.Kc3 Kc5 60.Ng5 Rf6 61.Nh7 Rh6 62.Ng5 Rg6 63.a3 Rb6 64.f5 Rb3 65.Kd2 Ra3 66.f6 Ra2 67.Ke1 Kd6 68.Nh7 Ke6 0–1. Slabek,Grzegorz (2175) – Kotarba,Marcin (2390), Krakow op–A Poland, 2003. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 c6 5.c4 a5)

5.e3 d5

6.Nbd2 Qb6 7.a3 Bf5 8.c4 Nbd7 9.Be2 0-0 10.0-0 Ne4 11.Qb3 Bg4 12.Bd3 Bf3 13.Nf3 dc4 14.Qc4 Nd6 15.Qc2 a5 16.Ne5 Rfd8 17.f4 e6 18.Bc3 ab4 19.Bb4 Qc7 20.Rac1 Nf5 21.Rf3 Ne5 22.fe5 Bh6 23.Bf5 ef5 24.Rcf1 Rd7 25.Qc4 Re8 26.Kh1 b6 27.Bd6 Qb7 28.Qb3 c5 29.Rb1 Qe4 30.Qb6 c4 31.h3 c3 32.Rc1 Be3 33.Rc3 Bd4 34.Qb5 Bc3 35.Qd7 Qe1 36.Kh2 Be5 37.Be5 Qe5 38.Kg1 Rb8 39.Qd3 Rb2 40.Re3 Qc5 41.Kh2 Qc7 42.Kh1 Qb8 43.Qc3 Ra2 44.Re7 Qa8 45.Qg3 f4 46.Qg4 Ra3 47.Qd7 Re3 48.Rf7 Qa1 49.Kh2 Qe5 50.Qc7 Rh3 51.gh3 Qb2 52.Kg1 Qb1 53.Kf2 Qa2 54.Kf3 Qf7 55.Qf4 Qf4 56.Kf4 h6 57.h4 Kf8 58.Ke4 Ke8 59.Kf3 Kf7 60.Ke3 Ke7 0–1. Bates – Baklan, Zagan 1997.

6.Be2 0-0 7.0-0 Nbd7 (7...Qd6 8.a3= b5) 8.h3 (8.Nbd2 a5= (8...Re8=)) 8...Nb6 9.a4 e6 (9...Qd6 10.Qe1=) 10.a5+= Nbd7 11.Ne5 (11.Qd3!?+=) 11...Ne5= 12.de5 Nd7 13.f4 b6 (13...Qe7 14.Qe1=) 14.ab6 (14.c4 dc4 15.Bc4 b5+=) 14...Nb6 (14...Qb6!? 15.Qd4 Bb7=) 15.Nd2 Bd7 (15...Qe7 16.Nb3+=) 16.c3 (16.Bd4 f6 17.Nf3 Qc7+/-) 16...f6 (16...Qe7 17.Nb3+=) 17.ef6 (17.c4 fe5 18.c5 Nc8 19.Be5 Be5 20.fe5 Rf1 21.Qf1 a5+=) 17...Bf6 18.Nf3 Qc7 19.Rb1 c5+= 20.Rc1 c4 21.g4 Bg7 22.Nh2 Bc6 23.Bf3 Nd7 24.Bg2-/+ a5 25.ba5 Ra5 26.Qe1? Nc5–+ 27.Rc2 Nd3 28.Qe2 Nb2 29.Rb2 Bc3 30.Rc2 Bg7 31.Rf2 Rfa8 32.Bf3 Ra1 33.Rf1 Qb6 34.Rcc1? Bb5 35.Qc2?? Qe3 36.Kg2 Bd4 37.Ra1 Ra1 38.Qe2 Rf1 39.Qe3–+ Be3 (39...Be3 40.Nf1 Bf4–+) 0–1. philstar99 – leighcastle, ChessWorld.net, 2009.

4.d4 d6

5.b5 c6 6.a4 Bd7 7.c4 0-0 8.Nc3 cb5 9.ab5 Bg4 10.e3 a6 11.Be2 Qc8 12.0-0 Nbd7 13.Qb3 Nb6 14.Rfe1 Rd8 15.h3 Bd7 16.e4 ab5 17.Nb5 Ne4 18.Ra8 Qa8 19.Ra1 Qb8 20.Bd3 Nf6 21.d5 Bb5 22.Qb5 Nbd7 23.Bd4 Qc7 24.Bb6?? Nb6–+ 25.Rb1 Nbd7 26.Qb7 Qb7 27.Rb7 Nc5 28.Re7 Nd3 29.Nd4 Ne5 30.Nb5 Nc4 0–1. pepeklepek – linakip, kurnik, 2012.

5.Nc3 0-0 6.e4 e5 7.de5 de5 8.Qd8 Rd8 9.Ne5 Ne4?? 10.Ne4+– Be5? 11.Be5 f5 12.Bc4 Kf8 13.Nf6 (13...Nc6 14.Nh7 Ke8 15.Bb5+–) 1–0. shaip (2345) – ekulrac (1935), ChessWorld.net, 2003.

5.c4 0-0 6.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4).

5.Nbd2 0-0 (--> 4.d4 0-0 5.Nbd2 d6).

5.Nbd2 c5 6.bc5 dc5 7.dc5 Qa5 8.e3 Qc5 9.Nb3 (9.Bd4 Qa5=) 9...Qb4 10.c3 (10.Qd2 Qd2 11.Nbd2 Nc6=) 10...Qb6 11.Qd4 (11.c4 Nc6=) 11...Qc7 12.Bb5 Bd7 13.Bd7 (13.c4 Nc6 14.Qh4 a6=) 13...Nbd7+= 14.Rc1 (14.Rd1 0-0+=) 14...0-0 15.0-0 (15.c4 Rfd8 16.Qf4 Qf4 17.ef4 Rac8+=) 15...e5 (15...Rad8 16.Ba3 Rfe8 17.Rfd1+= (17.Qa7? Ra8 18.Qd4 Ra3–+)) 16.Qd2 (16.Qh4 e4 17.Nfd2 Qe5=) 16...Rad8 (16...e4 17.Nfd4+=) 17.Rfd1 (17.Ba3 Rfe8 18.Bd6 Qc6-/+) 17…Nb6 (17...Nb6 18.Qc2 Nc4-/+) 0–1. Krc,Milan (1930) – Svadlenka,Jaroslav, Znojmo CZE, 2006.

5.Nbd2 c6

6.a4 Qb6 7.c3 d5 8.a5 Qc7 9.e3 0-0 10.Bd3 Nbd7 11.Qc2 e5 12.de5 Ng4 13.h3 Nge5 14.Be2 Nf3 15.Nf3 Ne5 16.0-0 Bf5 17.Qd2 Nc4 18.Qc1 b5 19.Nd4 Bd7 20.Bf3 Rae8 21.Qc2 f5 22.Be2 Bh6 23.Bc4 dc4 24.Rae1 Re4 25.Bc1 Rfe8 26.Bd2 a6 27.Qc1 Bf8 28.f4 c5 29.Ne2 Bc6 30.Ng3 R4e6 31.Qc2 h5 32.Ne2 Qb7 33.Rf2 Be4 34.Qc1 Bd6 35.bc5 Bc5 36.Nd4 R6e7 37.Qd1 Qc7 38.g4 hg4–+ 39.hg4 Bd4 40.ed4 Rh7 41.Rh2 Rh2 42.Kh2 Qh7 43.Kg3 Kg7 44.Re4 fe4 45.Qg1 Rh8 46.f5 Qh3 47.Kf4 Qf3 48.Ke5 Re8 49.Kd6 e3 50.d5 Rd8 51.Ke7 Qd5 52.f6 Kg8 53.f7 Kg7 54.f8Q Rf8 55.Qe3 Rf7 (55...Rf7 56.Ke8 Qd7; 55...Qd8 56.Ke6 Re8) 0–1. Akhiyarov,Viktor (1875) – Kurbansky,Rustam (1850), Izhevsk RUS, Udmurtia Ch, 2011.

6.e3 0-0 7.Bd3 Nbd7 8.0-0 e5 9.de5 Ng4 10.Qc1 Nde5 11.Be2 Qe7 12.h3 Nf3 13.Nf3 Nf6 14.c4 d5 15.c5 Ne4 16.Bg7 Kg7 17.Qb2 Kg8 18.Qe5 Qe5 19.Ne5 a5 20.a3 Be6 21.Nf3 Ra7 22.Nd4 ab4 23.ab4 Rfa8 24.Nc2 Ra2 25.Bd3 Kg7 26.Ra2 Ra2 27.Ra1 Ra1 28.Na1 Kf6 29.Nc2 Ke7 30.Nd4 Kd7 31.f3 Nc3 32.Kf2 Kc7 33.h4 b6 34.cb6 Kb6 35.g4 Na2 36.Ne6 fe6-/+ 37.Bg6 hg6 38.h5 gh5 39.g5 Nb4 40.g6 c5 41.g7 c4 42.g8Q Kb5 43.Qe8 Kc5 44.Qe6 Na2 45.Qe7 Kb5 46.Qb7 Ka4 47.Qd5 Kb3 48.f4 Nc3 49.Qe6 1–0. Ramos Moreno,FJ (2110) – Jurado Vazquez,J (1935), Malaga ESP, City Ch, 2012.

5.Nbd2 Nbd7

6.e3 0-0 7.Rb1 Re8 8.Nc4 b6 9.Be2 Bb7 10.0-0 c5 11.dc5 dc5 12.b5 Qc7 13.h3 Rad8 14.Qc1 e5 15.Rd1 e4 16.Nh2 Bd5 17.Ba1 h5 18.Qa3 Bf8 19.Nf1 Bc4 20.Bc4 Bd6 21.Qb3 Re7 22.Rd2 Be5 23.Be5 Ne5 24.Rbd1 Red7 25.Qc3 Rd2 26.Rd2 Rd2 27.Nd2 Qd6 28.Bf1 h4 29.Nc4 Nc4 30.Qc4 g5 31.Qa4 Qd7 32.Qa3 Kg7 33.Qc3 Kg6 34.Be2 Qd5 35.a3 Qd6 36.a4 Kg7 37.a5 Kf8 38.a6 Ke7 39.Kh1 Nd7 40.Qc4 Qe5 41.Kg1 Nf6 42.Qb3 Qa1 43.Bf1 Kf8 44.Qc4 Qe1 45.Qb3 Kg7 46.Qb2 Kg6 47.Qe5 g4 48.g3 hg3 49.Qg3 Qd1 50.h4 Qf3 51.Qe5 g3 52.Qg5 Kh7 53.Qg3 Qg3 54.fg3 Ng4 55.Bg2 f5 56.Bh3 Nh6 57.Kf2 Kg6 58.Ke2 Kf6 59.Kf2 Ke7 60.Bf1 Nf7 61.Be2 Ne5 62.Ke1 Kf6 63.Kf2 Kg6 64.Kg2 Kf6 65.Kh3 Kg6 66.c3 Kf6 67.g4 fg4 68.Kg3 Kf5 69.h5 Kg5 70.h6 Kh6 71.Kf4 g3 72.Bf1 Nc4 73.Bg2 Nd6 74.Kg3 Kg5 75.Bf1 c4 76.Kf2 Kf6 77.Ke1 Ke5 78.Kd2 Kd5 79.Bh3 Nb5 80.Bc8 Nc7 81.Bb7 Ke5 82.Kc2 Nd5 83.Kd2 Nf6 84.Bc6 Kd6 85.Bb7 Kc5 86.Ba8 b5 87.Bb7 Nd5 88.Bc8 Kd6 89.Bb7 Nc7 90.Kc2 Ke5 91.Bc6 Kd6 92.Bb7 Kc5 93.Kb2 Kb6 94.Be4 Na6 95.Bd5 Kc5 0–1. Arkell – Rowson, Edinburgh 1996.

6.e3 0-0 7.Be2 e5 8.Nb3 (8.de5 Ng4=) 8...e4 9.Nfd2 d5 10.c4 c6 (10...dc4 11.Nc4 Nd5 12.0-0=) 11.a4 (11.cd5 Nd5 12.Ne4 Qh4+=) 11...a6 12.Ba3 Re8 13.Qc2 Bf8 14.c5 Nh5 15.g4 (15.Bh5!? gh5 16.0-0+=) 15...Ng7= 16.h4 f5 17.h5 fg4 18.hg6 h5 19.0-0-0 Qg5 20.Rdg1 Nf6 21.Kb2 Be7 22.Ka2 Bd8 23.Bc1 Bf5 24.Qc3 Qg6 25.Nf1 Bc7 26.Bd2 Kf7 27.Nc1 (27.Ng3!?-/+) 27...Rh8–+ 28.Bd1 h4 29.Ne2 Ne6 30.Nf4 Qg5 (30...Nf4 31.ef4 Ke8 32.f3 ef3 33.Bf3–+) 31.Qc1 Rag8 32.b5 (32.Be2 Ke8–+) 32...ab5 33.ab5 Nh5 (33...cb5 34.Ne6 Be6 35.Be2–+) 34.Ne2 (34.Nh5 Ra8 35.Kb1 Qh5–+) 34...g3 (34...cb5!? 35.Nc3 Nf6 36.Nb5 Ra8 37.Kb2–+) 35.fg3 hg3 36.Rh5 Rh5 37.Nfg3 Bg3 38.Ng3 Rh2 39.Bc2 Nd4! 40.Rf1? Nf3 41.Rf3 ef3 42.Nf5 Ra8 43.Kb3 Qg4 44.Nd6 Kg8 45.e4 f2 46.Be3 Qf3 47.Bd3 Rh1 (47...Rh1 48.Qd2 Rb1 49.Bb1 f1Q–+) 0–1. Chandler,Patrick (2190) – Stauch,Edgar (2080), Regionalliga NW, 2006. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6 4.Bb2 Bg7 5.Nbd2 Nbd7)

6.e4 0-0 7.Bd3=.

6.e4 e5 7.Bc4 0-0 8.0-0 Qe7 9.Re1 h6 (9...Nh5 10.Qe2=) 10.a4 (10.h3 Nh5=) 10...Kh7 (10...Nh5 11.a5=) 11.a5 a6 12.Ra3 (12.c3 Nh5+=) 12...ed4 13.Bd4 Ne5 (better is 13...Rd8!?+=) 14.Ne5+– c5 (14...de5 15.Bc5 Qe8 16.Bf8 Bf8 17.Qf3+/-) 15.Ng6! fg6 16.Bf6 Rf6 17.bc5 d5 18.Bd5 Qc5 19.Ree3 Rf8 20.Nf3 Bg4 21.Ng5! hg5 22.Qg4 Rf2 23.Qh3 Bh6 24.Qd7 Kh8 25.Kf2 g4 26.Rad3 Rf8 27.Kg3 Be3 28.Kg4?? Qc2= 29.Re3 Qg2 30.Rg3 Qe2 31.Kh3 Qh5 32.Kg2 Qe2 33.Kh3 Qh5 34.Kg2 Qe2 35.Kh3 Qh5 36.Kg2 Qe2 ½–½. Poley,V (2325) – Mikkelsen,N (2290), Salongernas IM, Stockholm SWE, 2007.

5.e3 0-0

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4).

4.e3 0-0

5.a3 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.a3 0-0 5.Nf3).

5.a4 d5 6.b5 e6 7.c4 dc4 8.Bc4 c6 9.0-0 cb5 10.ab5 Nbd7 11.Bf6 Nf6 12.d4 b6 13.Nc3 Bb7 14.Ne5 Qc7 15.Qb3 Rfc8 16.Na4 Nd5 17.Bd5 Bd5 18.Qb2 Be5 19.de5 Qe7 20.f4 Be4 21.Rac1 Qh4 22.g3 Qh3 23.Rf2 Qg4 24.Qd2 Rd8 25.Qe1 Bf3 26.Nb2 Bb7 27.Nc4 h5 28.Nd6 Rab8 29.Rc7 Rd6 30.ed6 Qf5 31.d7 Qd5 32.Rd2 Qh1 33.Kf2 Qg2 0–1. Abdullaevich (1705) – VJS (1910), lichess.org, 2017.

5.Qc1 b6 6.c4 Bb7 7.Be2 c5 8.a3 cb4 9.ab4 Nc6 10.b5 Na5 11.Qd1 Rc8 12.Na3 d5 13.cd5 Bd5 14.Rc1 Bb3 15.Rc8 Qc8 16.Qc1 Qd7 17.0-0 Rc8 18.Qa1 Bd5 19.Ne5 Qe6 20.d4 Ne4 21.Rc1 Nb3 22.Rc8 Qc8 23.Qd1 Nc3 24.Bc3 Qc3 25.Qc2 Qe1 26.Bf1 Be5 27.de5 Nd2 28.Qc8 Kg7 29.h3 Qf1 0–1. Adamkosh (1910) – Boot1234 (2155), lichess.org, 2019.

5.Bc4 c6 6.0-0 d5 7.Bb3 a5 8.ba5 Qa5 9.d3 Nbd7 10.Nbd2 Re8 ½–½. Mascaro March,Pedro (2310) – March Morla,Xavier (2205), Cala d'Or 1st, 2003. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0)

5.Bc4 Nc6 6.a3 (6.b5 d5=) 6...d6 (6...d5 7.Be2=) 7.h3 (7.0-0 e5=) 7...Re8 (7...e5 8.0-0=) 8.Ng5 (8.d4 d5 9.Bd3 Qd6=) 8...e6 (8...d5 9.Be2=+) 9.Nf3 (9.0-0 d5 10.Be2 a6=) 9...b6 (9...e5 10.0-0=) 10.d3 (10.0-0 a6=) 10...d5 (10...a6 11.0-0=) 11.Bb3 Bb7 (11...a6 12.0-0=) 12.0-0 a5 (12...a6 13.Nbd2=) 13.b5 (13.Ba4 ab4 14.ab4 Rf8=) 13...Na7 (13...Ne7 14.c4=) 14.a4 c6 (14...Rc8 15.Be5=) 15.bc6 (15.Na3 Rc8=) 15...Nc6 16.Nbd2 Ba6 17.Re1 Qc7 (17...Rc8 18.Rc1=) 18.c4 dc4 (18...Rac8 19.Rc1+=) 19.Bc4+= (< 19.dc4 Rad8=+) 19...Red8 (19...Bc4 20.Nc4 Rac8 21.Qb3+=) 20.Qe2 (20.Rb1 Nb4 21.Bd4 A) < 21...Nd3 22.Bb6 Qc6 23.Bd3 Rd3 24.Ne5+– (24.Ba5?! Ra3=); B) 21...Qb7=) 20...Bb7 (20...Nb4 21.Be5 Qa7 22.Nd4+=) 21.Bb5 Ne8 (21...Rac8 22.Rac1+=) ½–½. Tanuki – the yid, internet, 2005.

5.d3 c6 6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d3).

5.Bd3 e6 6.0-0 d6 7.Nc3 b6 8.a4 Bb7 9.a5 a6 10.ab6 cb6 11.b5 a5 12.Bc4 d5 13.Bb3 Ne4 14.d4 Nd6 15.Ba3 Qc7 16.Ne5 Qc3 17.Bd6 Rd8 18.Qf3 f6 19.Bb8 Rab8 20.Nd3 Rf8 21.Nf4 Qc8 22.e4 de4 23.Qg3 Re8 24.Be6+– Re6 25.Ne6 Qe8 26.Ng7 Kg7 27.Qc7 Kh8 28.Qb6 (28...Bd5 29.Qf6 Kg8 30.Ra5 Rb5 31.Ra7+–) 1–0. Ventimiglia,Charles – Allen,Bob, internet, 1998.

5.d4 a6 6.c4 c6 7.Be2 b5 8.c5 d6 9.a3 dc5 10.dc5 Qd1 11.Bd1 Bg4 12.Be2 Nbd7 13.Nbd2 e6 14.0-0 Rad8 15.Rfd1 Nd5 16.Bg7 Kg7 17.Rac1 N7f6 18.h3 Bf5? (18...Bf3!? 19.Nf3 Ne7+=) 19.Nd4 Rc8 20.Nf5 (better is 20.g4!? e5 21.N4f3 (21.gf5?! ed4 22.ed4 Nf4=) 21...Ng4 22.hg4 Bg4 23.Ne4+/-) 20...ef5 21.Bf3 Rcd8 22.Nb3 Rfe8? 23.Nd4+– Rc8 24.Nb3 Ne4 25.Be4 fe4 26.Na5 Red8 27.Nb7+/- Rd7 28.Nd6 Ra8 29.Ne4 a5 30.Nc3?? Nc3–+ 31.Rd7 Ne2 32.Kf1 Nc1 33.Rd6 Ra6 34.ba5 Nb3 35.f3 Nc5 36.e4 Nb3 37.Ke2 Na5 38.Kd3 Nc4 39.Rd8 Ra3 40.Ke2 b4 41.Rc8 Ra6 42.Kd3 Na5 43.Kc2 Rb6 44.Kb2 b3 45.g4 Nc4 46.Kb1 b2 47.Rd8 Na3 48.Ka2 b1Q 49.Ka3 Qb3 0–1. Fournier,Frederic – Disco8BCN, Active, 2009.

5.Be2 c5 6.bc5 Qc7 7.d4 b6 8.cb6 ab6 (8...Qb6 9.Bc1+=) 9.c4 d6 10.Nc3 Be6 11.0-0 (11.Nd2 d5+/-) 11...Bc4+= 12.Rc1 Be2 13.Qe2 Qb7 (13...Qd7 14.e4=) 14.e4+= Nc6 15.e5 de5 16.de5 Nd7 17.Nd5 Rfe8?? (better 17...e6 18.Rc6 ed5+=) 18.e6+- Bb2 19.ef7 (19.ed7 Qd7 20.Nb6 Qb7 21.Qb2 Ra6+-) 19...Kf7 20.Ng5 (20.Qb2 Kg8+/-) 20...Kg8 (20...Kg7 21.Qb2 e5 22.f4+-) 21.Qe6 (better 21.Qb2 e6 22.Nf4+/-) 21...Kg7?? (better 21...Kh8 22.Rc6 Nf8 23.Rb6 Ne6 24.Rb7 Ng5 25.Rb2 Ra5+/-) 22.Qf7 (22.Qc6?! Qc6 23.Rc6 Ra2 24.Ne6 Kf7 25.Ng5 Kg7 26.Ne6 Kf7 27.Ng5 Kg7=; 22.Rc6 Nf6 23.Nc7 b5 24.Qf7 Kh6 25.Rf6 Rh8+-) 22...Kh6 23.Qh7 Kg5 24.f4 Kf5 25.Qh3 Ke4 26.Rfe1 Kd5 27.Qe6 Kd4 28.Re4 (28.Red1) 28...Kd3 29.Qc4 Kd2 30.Re2 1-0. Lance5500 (2480) - JonggXi (2330), lichess.org, 2016. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 c5)

5.Bf6 Bf6-/+ 6.Nd4 (6.Nc3 d5-/+) 6...b6 (better 6...d5-+) 7.Qg4?? (better 7.Qf3 c6 8.Nc3=+) 7...c5 8.bc5 bc5 (better 8...d5 9.Qf3 bc5-+) 9.Nf3?? (9.Nb3 d5 10.Qf3 Ba1 11.Na1-+) 9...Ba1 10.Ng5 (10.Qc4 Qb6 11.Na3 Nc6-+) 10...Bg7 (10...h6 11.Nf3-+) 11.Qh4 (11.Nc3 h6 12.Nf3 Nc6-+) 11…h6 (11...h6 12.Nf3 Nc6-+) 0-1. CatMan23 - Lance5500 (2540), lichess.org, 2020. (=1.e3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0)

5.h3 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.h3 0-0 5.Nf3).

5.h4 a5 6.b5 c6 7.Nh2 d6 8.g4 e5 9.h5 Qd7 10.hg6 fg6 11.Be2 cb5 12.d3 Nc6 13.g5 Nd5 14.Nd2 Qf7 15.Bf3 Be6 16.Ne4 Rad8 17.Bg4 Ncb4 18.Kd2 Rc8 19.c3 Na6 20.Qe2 Qe7 21.Be6 Qe6 22.Ng3 Nc5–+ 23.Ng4? e4 24.de4 Ne4 25.Ne4 Qe4 26.Nh6 Kh8 27.Rh2 Nc3 28.Qd3 Qb4 29.Nf7 Rf7 30.Rh7 Kh7 31.Rh1 Kg8 (32.Rh8 Kh8 33.Ke1 Ne4 34.Bc3 Rc3 35.Qc3 Qc3 36.Kf1 Rf2 37.Kg1 Qe1#) 0–1. Solozhentseva,Anna – Khasanova,Elmira (2025), RUS–ch U16 Girls, 1999.

5.a4 a5

6.b5 c5 7.c4 b6 8.g3 Bb7 9.Bg2 d5 10.Qb3 Nbd7 11.0-0 Qc7 12.d3 e5 13.Nbd2 Rad8 14.Rfe1 Rfe8 15.e4 de4 16.de4 Nf8 17.h3 N6d7 18.g4 Ne6 19.Nf1 Nf4 20.Rad1 Nf8 21.Ng3 N8e6 22.Bf1 Nd4 23.Qc3 Qe7 24.Bc1 Nfe6 25.Be3 Rd7 26.Kg2 Red8 27.Bd4 ed4 28.Qd2 Bf6 29.Bd3 Bg5 30.Ng5 Ng5 31.f4 Ne6 32.Qf2 Qh4 33.Kh2 Re7 34.e5 Rde8 35.Be4 Be4 36.Re4 Qh6 37.Qf3 Nf8 38.Ree1 Nd7 39.Re2 Nf8 40.Rde1 Ne6 41.Ne4 Nf4 42.Nf6 Kh8 43.Re4 Ne6 44.Ne8 Re8 45.Qf7 Qf8 46.Qf8 Rf8 47.Kg3 Kg7 48.R1e2 Rf1 0–1. blackiwhite (1660) – myszka27l (1790), kurnik, 2012.

6.b5 c5 7.c4 Qc7 8.Be2+= b6 9.0-0 (9.d3 Bb7=) 9...Bb7 10.Nc3 (10.d4 cd4 11.Nd4 Ne4=) 10...d6 (10...Ng4 11.Re1=) 11.d4+= Nbd7 (11...e6 12.Qd3+=) 12.d5 e5 (12...Rae8 13.Qd3+=) 13.Qc2 Bc8 14.Rfe1 Ra7 (14...Re8 15.Rab1+=) 15.Bc1 (15.Rad1 Re8+=) 15...Qd8 (15...Bh6 16.Rb1+=) ½–½. Weigel,Ha (1995) – Juergens,B (2135), Open A Hamburg GER, 2005.

6.b5 c5 7.c4 d6 8.Be2=.

6.b5 c5 7.Be2 d5=.

5.b5 a6

6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.c4 c5 10.d4 b6 11.Bd3 e6 12.Qc2 d5 13.Nbd2 Bb7 14.0-0 Ne4 15.Ne4 de4 16.Be4 Be4 17.Qe4 cd4 18.Bd4 Bd4 19.Nd4 Qc7 20.Rd1 Qc4 21.Nc6 Qb5 22.Nb8 Rb8 23.Qd3 Qe8 24.Qb3 b5 25.Rb1 Qc6 26.f3 Qc5 27.Kf2 b4 28.Ke2 Qb5 29.Kd2 Qc5 30.Kd3 Rd8 31.Ke2 Qc3 32.Qc3 bc3 33.Rc1 Rc8 34.Kd3 Kg7 35.Rc3 Rc3 36.Kc3 f5 37.Kd4 Kf6 38.g3 h5 39.h3 g5 40.e4 e5 41.Kd5 f4 42.gf4 gf4 43.h4 1–0. exterminator1 – ferr7, kurnik, 2012.

6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.c4 d5 10.cd5 cd5 11.Be2 Nbd7 12.0-0 b6 13.d4 Ne4 14.Qb3 Ndf6 15.Nc3 Nc3 16.Bc3 Ne4 17.Bb2 Bg4 18.Rd1 e6 19.h3 Bf3 20.Bf3 Nd6 21.Be2 Qd7 22.Rc1 Rc8 23.Rc8 Qc8 24.Ba3 Ne4 25.Bd3 Nd2 26.Qc2 Qc2 27.Bc2 Bf8 28.Bc1 Nc4 29.Bd3 Bb4 30.Kf1 Kf8 31.Ke2 Ke7 32.Bc4 dc4 33.Bd2 c3 34.Bc1 Kd6 35.Kd3 Kd5 36.e4 Kd6 37.Kc4 Ba5 38.f4 Kd7 39.g4 h5 40.gh5 gh5 41.d5 ed5 42.Kd5 Bb4 43.e5 Bc5 44.f5 Bf2+= 45.e6 fe6= 46.fe6 Ke8 47.Kc6 Ke7 48.Kd5 Ke8 49.Bg5 c2 50.Bc1 Ke7 51.Bd2 1–0. lousse (1620) – jokinghero (1615), kurnik, 2012.

5.b5 d6

6.c4 dc4 7.Bc4 Bg4 8.Be2 Nbd7 9.0-0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nc5 13.d4 Nce4 14.Nc3 e6 15.h3 Bf3 16.Bf3 (< 16.gf3 Nc3 17.Bc3 Nd5=+) 16...Nc3 17.Bc3 b6? (17...Nd5 18.Qb3+=) 18.Qc2 (18.Bb4!? Re8 19.Bc6+/-) 18...Nd5+/- 19.Bd5 Qd5= 20.Rc1 Qb5=+ 21.Rb1 Qd7 22.Bb4 Rc8 23.Qe4 c5 24.dc5 bc5 25.Ba5 c4 26.Rb7 Qd3 27.Qf4 f5 28.Rg7? Kg7 29.Qe5 Kf7 30.Bc3 Qd5 31.Qf6 Ke8=+ 32.Qh8 Kd7 33.Qh7 Kc6 34.Qg6 Rb8 35.Bd4 Rb1 36.Kh2 Qd6 37.g3 Qd5 38.Qe8 Kc7 39.Qe7 Kc6 40.Qe8 Qd7 41.Qd7? Kd7–+ 42.Kg2 Kd6 43.h4 Kd5 44.Kf3 Rb7 45.h5 Rh7 46.Kf4 Rh5–+ 47.g4 fg4 48.Kg4 Rf5 49.f4 Ke4 50.Bc3 Ke3 51.Be5 Ke4 52.Kg3 c3! 53.Kf2 c2 54.Ke1 c1Q 55.Ke2 Qc2 56.Ke1 Qd2! 57.Kf1 Qe2! (57...Qe2 58.Ke2 Rf4–+) 0–1. alfons78 – leongadol, kurnik, 2012.

6.c4 e5 7.Be2 Nbd7 8.0-0 Ne8 9.d4 f5 10.a4 e4 11.Nfd2 Nc5 12.f3 (worse is 12.dc5 Bb2 13.Ra2 Be5+=) 12...b6 (better is 12...Qg5!? 13.f4 Qh4+=) 13.Nc3+/- (13.dc5?! Bb2 14.Ra2 Be5=) 13...ef3 14.Bf3 (worse is 14.Rf3 Ne6+=; worse is 14.Nf3 Ne4+=) 14...Nd3?? (better is 14...Nb7+/-) 15.Ba3 (worse is 15.Ba8 Bh6 16.Qe2 Nb2+–) 15...Rb8 16.Nb3?? (better is 16.Bd5 Kh8 17.Qc2+–) 16...Nc5+/- 17.Nc5 dc5 18.Bd5 Kh8 19.Rc1 Qd6 20.dc5 bc5 21.e4 Bd4 22.Qd4 cd4 23.Bd6 Nd6 24.Ne2 d3 25.Nf4 fe4 26.Ng6! Kg7? 27.Nf8 d2 28.Rcd1 e3 29.c5 e2 30.Rd2 ef1Q 31.Kf1 Kf8 32.cd6 cd6 33.Bc6 Ke7 34.h3 Be6 35.g4 Rf8 36.Kg2 Bd7 37.a5 Bc6 38.bc6 Rf4? 39.Rb2+– Ra4 40.Rb7 Kd8 41.Ra7 1–0. ariank – ricardo2005, kurnik, 2011.

6.d4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c5 10.c4 Ne4 11.Nbd2 Qa5 12.Bd3 Nd2 13.Nd2 e5 14.de5 de5 15.0-0 Be6 16.Qc2 Rd8 17.Bc3 Qc7 18.Be4 b6 19.g3 f5 20.Bg2 e4 21.Rd1 Bc3 22.Qc3 Qg7 23.Qg7 Kg7 24.Bf1 Rd6 25.Be2 Nd7 26.Kf1 Ne5 27.Ke1 Nd3 28.Bd3 Rd3 29.Ke2 Kf6 30.f3 Ke5 31.fe4 fe4 32.Rc1 Bg4 33.Ke1 Re3 34.Kf1 Re2 35.Rc2 e3 36.h3 Rd2 37.Rc1 e2 38.Kf2 Rd1 39.hg4 e1Q 40.Kf3 Rc1 41.g5 Rc3 42.Kg4 Qg3# 0–1. mihai740609 – bonkitonki, kurnik, 2012.

6.Be2 c5 7.c4 Qc7 8.0-0 Nbd7 9.d4 b6 10.d5 e6 11.Nc3 Bb7 12.Rb1 ed5 13.Nd5 Nd5 14.Bg7 Kg7 15.cd5 Nf6 16.Bc4 Qe7 17.Re1 Rae8 18.Rb3 Bc8 19.h3 Bf5 20.a4 Ne4 21.Nd2 Nd2 22.Qd2 Qe4 23.f3 Qc4 24.Rc3 Qa4 25.e4 Bd7 26.Qb2 Kg8 27.Ra1 Qb5 28.Qb5 Bb5 29.Ra7 Rb8 30.Rca3 Bc4 31.Rd7 Rfd8 32.Raa7 Rf8 33.Rd6 b5 34.Rdd7 Bd3 35.Kf2 c4 36.Ke3 b4 37.Rab7 Rb7 38.Rb7 b3 39.Kd4 Bf1 40.g3 Rc8 41.d6 Bh3 42.f4 Be6 43.e5 c3 44.d7 Bd7 45.Rb3 c2 46.Rb7 c1Q 0–1. avinoam – vasek23, kurnik, 2012.

6.Be2 c6 7.a4 Nbd7 8.0-0 a6 9.c4 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.d3 Be6 13.Nbd2 Qc7 14.Ng5 Bd7 15.Bf3 (15.Bf6 Bf6 16.Nge4 Bg7= (< 16...cb5 17.Nf6 ef6 18.Ne4+/-)) 15...Ra8 ( 15...cb5 16.cb5 d5=+) 16.Nge4?? (16.Qb3 c5=) 16...cb5?? ( 16...Ne4 17.Bg7 Nd2 (17...Kg7?! 18.Be4 cb5 19.cb5-/+) 18.Qd2 Kg7–+) 17.Nf6= ef6 18.Ne4 f5=+ 19.Nf6 Kh8 20.Nd7 Ra1–+ 21.Qb3 Rf1 22.Kf1 Nd7 23.cb5 Ne5 24.Bd5 Kg8 25.h3 g5 26.d4 Ng6 27.b6 Qd7 28.Kg1 f4 29.Qa2 fe3 30.fe3 Qe7 31.Qa8 Nf8 32.Kf2 h5 33.Bb7-/+ Kh7?? 34.Be4+– Kh6 35.b7 Qe4 36.b8Q Qh4 37.Kg1 Qe1 38.Kh2 Qe3 39.Qd6 Ng6? 40.Qf3 Bd4 41.Qe3 Be3 42.Qf6 Bf4 43.g3 Be5 44.Qf7 h4 45.Kg2 Bg3 46.Qe6 Bf4 47.Kf3 Kg7 48.Kg4 Ne5?? 49.Kh5 Kf8 50.Qf6 Ke8 51.Kh6 Kd7 52.Kg7 Kc7 53.Qf5 Kd6 54.Qe4 Ke6 55.Kf8 Kd6 56.Ke8 Ke6 57.Qe2 Kd5 58.Qg2 Kd4 59.Ke7 Ke3 60.Ke6 Nd3 61.Kf5 Nf2 62.Qd5 Ke2 63.Qb3 Kf1 64.Ke6 Kg2= 65.Qc2 Kf3 66.Qc6 Kg3 67.Qc3 Kg2 68.Qc6 Kh3-/+ 69.Qf3 Bg3 70.Kf5 g4 71.Qb3 Kh2 72.Kg5 h3 73.Qc2 Kg2 74.Qe2?? h2–+ 75.Qc2 h1Q 76.Qc6 Kg1 77.Qc1 Kh2 (77...Kh2 78.Qh1 Kh1–+) 0–1. Starr,Albert Martin – Salvo,Tab (1710), San Francisco MI Fall op, 2005.

6.Be2 e5 7.0-0 h6 8.d3 Ne8 9.Nbd2 f5 10.a4 g5 (10...Be6 11.d4 e4 12.Ne1=) 11.Rc1 Be6 12.d4 e4 13.Ne1 d5 14.f3 c6 15.fe4 de4 16.Bc4 (16.c4 cb5 17.ab5 a6+=) 16...Qd7 17.Be6 Qe6 18.c4 Nd7 19.d5 (better is 19.Qe2!?+=) 19...cd5=+ 20.Bg7 Ng7 21.cd5 Qd5 22.Nc4 Qd1 23.Rd1 Nf6 24.Nd6 Ng4 25.Nc4? Rac8–+ 26.h3 Rc4 27.hg4 fg4 28.Rf8 Kf8 29.Rd8 Ke7 30.Rg8 Kf7 31.Rb8 Rc7 32.Kf2 h5 33.Kg3? Nf5 34.Kh2 Ne3 35.g3 Rc2 36.Kg1?? Re2–+ 37.Rb7 Ke6 38.Ra7 Re1 39.Kf2 Nc2 40.b6 e3 41.Kg2 Re2 42.Kf1 Rf2 43.Kg1 h4 44.gh4 gh4 45.b7 Rf8 46.Ra8 e2 47.Rf8 e1Q 48.Kg2 Qe4 49.Kf1 Qb7 50.Re8 Kf7 51.Re2 Qh1 52.Kf2 Nd4 53.Ke3 Qf3 54.Kd4 Qe2 55.a5 Qa6 (55...Qa6 56.Ke3 g3 57.Kd2 g2 58.Kc3 Qa5 59.Kc4 g1Q 60.Kd3 Qd5 61.Kc3 Qa1 62.Kc2 Qdd1#) 0–1. blaugrana18 – solaris8, kurnik, 2012.

5.c4

5.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3).

5.c4 a5 6.b5 c5 7.d4 d6 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 g6 5.d4 Bg7 6.Nf3 0-0 7.c4 c5).

5.c4 a5 6.b5 d6 7.d4 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 g6 5.d4 Bg7 6.Nf3 0-0 7.c4).

5.c4 b6 6.d4 d6 7.Be2 Bb7 8.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6 8.d4).

5.c4 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6).

5.c4 d6

(--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6).

6.Nc3 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.Nc3 0-0).

6.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4).

6.d4 a5 7.b5 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 g6 5.d4 Bg7 6.Nf3 0-0 7.c4).

6.d4 b6 7.Be2 Bb7 8.0-0 (---> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6 8.d4).

6.d4 Nbd7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7).

6.d4 Nbd7 7.Be2 c6 8.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d6 7.0-0 Nbd7 8.d4).

6.d4 Nbd7 7.Be2 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7).

6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8 9.0-0 e4 10.Nd2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0-0 e4 9.Nfd2 Re8 10.Nc3).

6.d4 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5).

6.d4 e5 7.Nc3 Nbd7 8.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.Nc3).

6.Be2 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d6).

6.Be2 c6 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 c6 7.Be2).

6.Be2 e5 7.Nc3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.Nc3 0-0 7.Be2).

6.Be2 e5 7.d3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d3).

6.Be2 e5 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2).

5.Bc4 d5

6.Bb3 a5 7.a3 Nbd7 8.c4 dc4 9.Bc4 Nb6 10.Be2 c6 11.0-0 Bg4 12.h3 Bf3 13.Bf3 ab4 14.ab4 Ra1 15.Ba1 Nbd5 16.b5 cb5 17.Qb3 Qd7 18.Bf6 Nf6 19.d4 Ne8 20.Na3 Nd6 21.Rb1 Rb8 22.Nb5 ½–½. Tumurbator – Filip, Skopje 1972.

6.Bb3 a6 7.0-0 Bg4 8.h3 Bf3 9.Qf3 c6 10.c4 e6 11.a4 Nbd7 12.Nc3 (better is 12.d4!?=) 12...Ne5-/+ 13.Qe2 dc4 14.Bc4 Nc4 15.Qc4 Qd2 16.Ba3 Nd5 17.Rad1?? (better is 17.Ne4 b5 18.Qc6=+) 17...Qc3–+ (17...Qc3 18.Qa2 Nb4 19.Bb4 Qb4–+; < 17...Bc3 18.Rd2 Bd2 19.Qb3+=) 0–1. elsh1403 – torony (1780), kurnik, 2011.

6.Bb3 Bf5 7.0-0 (7.Nc3 Na6 8.a3 c5=+) 7...Nc6 (7...a5 8.a3=+) 8.b5 (8.a3 Qd6=) 8...Na5=+ 9.Ne5 (9.d3 Nb3 10.ab3 Qd7=+) 9...Ne4 (9...Ng4 10.d4 (10.Ng4? Bb2 11.Nh6 Kh8–+) 10...Nb3 11.ab3 Ne5 12.de5=+) 10.d3= Nc5 11.Nd2 (11.f4 Nab3 (< 11...Ncb3 12.ab3 c5 13.Bc3+=) 12.ab3 Qd6=+) 11...Nab3 (11...Qd6 12.d4 Nab3 13.ab3= (< 13.Nb3 Na4 14.Qc1 a6=+)) 12.ab3= Qd6 13.d4 Ne4 14.Ndf3 (14.Ne4 Be4 15.Ba3 Qd8=) 14...Be5 (14...f6 15.Nd3=+) 15.Ne5= a6 (15...f6 16.Nd3=) 16.Ba3 (better is 16.f3 Nf6 17.Ba3+=) 16...Qe6? (better is 16...Qf6=) 17.g4+– Nc3 (17...Bg4 18.Qg4 ab5 19.Qe6 fe6 20.f4+–) 18.gf5 Qf5 19.Qg4 Qg4 20.Ng4 ab5 21.Be7 Rfe8 22.Nf6 (22.Nf6 Kg7 23.Ne8 Re8 24.Bb4+–) 1–0. Wall,Bill – Premium, internet, 2000.

6.Bb3 Bg4 7.d3 c6 8.Nbd2 Nbd7 9.d4 Qc7 10.h3 Bf3 11.Nf3 Ne4 12.0-0 a5 13.ba5 Qa5 14.c4 e6 15.Qc2 b5 16.Rfe1 (16.c5 Rfb8=) 16...Nb6+= 17.c5 Na4 18.Rad1 (18.Reb1!?+=) 18...Nec5-/+ 19.Ba4 Na4 20.Nd2 (20.Bc1 c5!–+) 20...c5! 21.Nb3 Qa7 22.Rb1 c4 23.Nc5 Nc5 24.dc5 c3 25.Bc3 Qc5 26.Rbc1 Rfc8 27.Bg7 Qc2 28.Rc2 Rc2 29.Bd4 Raa2 30.Rb1 Rf2 31.Rb5 f6 32.h4 e5 33.Bc3 Rg2 34.Kh1 Rgc2 (34...Rgc2 35.Rb1 Rc3–+) 0–1. Docekal,Jan – Lahner,Jakub (2045), CZE–ch U16 Czechia, 2000.

6.Bb3 Bg4 7.h3 Bf3 8.Qf3 Nc6 9.b5 (9.Nc3 e6=) 9...Na5 10.0-0 c5 (10...a6 11.ba6 Ra6 12.d3=+) 11.bc6= Nc6 12.d3 Rc8 13.Qe2 b5 (13...Nh5 14.d4=) 14.Nd2 a5 (14...Qd6 15.Nf3=) 15.a4 b4 16.Nf3 Re8 17.Rad1 (17.Rac1 e5=) 17...e5 Black prepares d4 (17...e6 18.c3=) 18.e4 Re7 19.Rde1 Rcc7 (19...Qd7 20.ed5 Nd5 21.Qe4=) 20.Bc1 (20.ed5 Nd5 21.Qe4 Nc3 22.Bc3 bc3=) 20...h6 21.Be3 (21.ed5 Nd5 22.Qe4 Red7=) 21...d4 (21...de4!? 22.de4 Ne4=+) 22.Bd2= Nd7 23.Nh4 (better 23.Ra1=) 23...Ncb8?? (better 23...Nc5=) 24.Ng6+– Rc3?? (24...Re8 25.f4 Nc5 26.Ne5 Nb3 27.cb3 Nd7+–) 25.Ne7 Qe7 26.Qg4 (26.Bc3 dc3 27.Bd5 Nb6+–) 26...Kh7 (26...Rc6+–) 27.Qf5 Kh8 28.Bc3 bc3 (28...dc3 29.Qf7 Qf7 30.Bf7+–) 29.Bf7 Nc6 30.Rb1 Nb4 (30...Qd8 31.Rb5 Nf8 32.Rb7+–) 31.Rb4! ab4 (31...ab4 32.a5 Passed pawn; 31...Qb4 32.Qd7 Deflection (32.Qd7 Overloading)) 32.a5 b3 (32...Nb8 33.Ra1 Na6 34.Bc4+–) 33.Bb3 (33.Bb3 Nc5 34.Bc4+–) 1–0. Grundekjon,Christian (2035) – Fransson,Pia, Xtracon Chess Open, 2017. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Bc4 d5)

6.Bb3 Bg4 7.h3 Bf5=.

6.Be2 c6 7.c4 e6 8.Nc3 Ne4 9.0-0 a5 10.a3 Nd7 11.Qc2 Nc3 12.Bc3 Bc3 13.Qc3 Nf6 14.d3 Bd7 15.Ne5 Qc7 16.Bf3 ab4 17.ab4 Ra1 18.Ra1 dc4 19.dc4 Rb8 20.Rd1 Be8 21.Ng6! hg6 22.Qf6 Ra8 23.g3 Kf8?? 24.Rd4 g5 25.Qg5 Qe7 26.Qh6 (26.Qh6 Kg8 27.Rg4 Qg5 28.Rg5#) 1–0. mrkt – chyl1, internet, 2011.

7.0-0 Qc7 8.Qe2 e5 9.Ne5 Be6 10.Nf3 Nbd7 11.Nd4 Rae8 12.Ne6 fe6 13.d3 e5 14.e4 Kh8 15.ed5 cd5 16.Nd2 e4 17.de4 de4 18.Bf6 Nf6 19.Rad1 Qc6 20.Nc4 b6 21.Nb2 Nd7 22.Ba4 b5 23.Bb5 Qc3 24.Bd7 Re7 25.Nc4 Bd4 26.Bh3 Ref7 27.Ne3 Qb4 28.Be6 Rf6 29.Nd5 Qc5 30.Nf6 Rf6 31.Bb3 e3 32.fe3 Be3 33.Kh1 Rc6 34.Rd8 Kg7 35.Rg8 Kh6 36.Rf3 Bd4 37.Qd2 1–0. Adjailton (1855) – BlackThunder721 (1790), lichess.org, 2020.

6.Bb3 c6

7.0-0 Nbd7 8.c4 e6 9.cd5 Nd5 10.a3?? a6 11.Bg7+/- Kg7 12.Nc3 f6 13.Ne4 N7b6 14.Nc5 Qd6 15.Nd4 h6 16.Qg4 f5 17.Qe2 e5 18.Nf3 Nf6 19.d4 e4 20.Ne5 Nbd5 21.Bd5 Nd5 22.h3 b6 23.Nb3 c5 24.bc5+/- bc5 25.Nc5 a5 26.Rab1 Nc3= 27.Qc4 Nb1 28.Rb1 f4? 29.ef4 Rf4 30.Re1 h5 31.Ne4+– Qe6?? 32.g3 Qc4+= 33.Nc4 Rf5? 34.Ned6 Rd5 35.Re7?? Kh6? 36.Nf7+– Kg7 37.Nfe5 Kf6+/- 38.Rf7 Ke6 39.f4 Rd4 40.Ne3?? Ba6 (41.Rg7 Bd3=; better is 40...Re4 41.N3c4 Rc4 42.Nc4 Kf7–+) 0–1. revbodio1 – Bennyhill, Caissa.com, 2004.

7.0-0 Bg4 8.h3 Bf3 9.Qf3 Nbd7 10.d3 e5 11.Nd2 Qc7 12.c4 Rfe8 Black intends e4 13.cd5 cd5 14.Rac1 Qd6 15.a3 e4 16.de4 de4 17.Qe2 Ne5 18.Be5 (better is 18.Rfd1!? Qe7 19.Bc2+/-) 18...Qe5+= 19.Qc4 (better is 19.Rc5 Qe7 20.Rfc1+=) 19...Rac8?? (better is 19...Re7=) 20.Qf7+– Kh8 21.Rc8 Rc8 22.Qb7 Rd8 23.Nc4 Qf5 24.Qe7 Re8 (24...Rd7 25.Qe5 Bf8 26.f3+–) 25.Qa7 Qg5 (25...Qe6+–) 26.Nd6 (26.Nd6 Rf8 27.Nf7 Rf7 28.Qf7+–) 1–0. Hovla1 – craig4000, ChessWorld.net, 2015.

7.Nc3 Nbd7 8.0-0= e5 9.Qe2 Re8 10.a3 Qc7 11.h3 b6 12.e4 d4 13.Na4 Nf8 14.c3 c5 15.Rfc1 dc3 16.Bc3+/- Be6 17.Be5 Qb7 18.Bc2 Bd7 19.bc5+– b5? 20.Nc3 Bc6 21.d4 1–0. Anonymous – Anonymous, internet, 2011.

7.h3 Nbd7 8.0-0 Re8 9.d4. stampyshortlegs – TheWelshKnight, ChessWorld.net, 2014.

5.Bc4 d6

6.0-0 a6 7.d4 b5 (7...d5 8.Bd3=) 8.Bd3 (8.Be2 c5 9.dc5 dc5 10.bc5 Qc7=) 8...Bb7 (8...Nc6 9.c3=) 9.Nbd2 (9.a4 ba4 10.Nc3 a5+=) 9...Nbd7 (9...c5 10.bc5 dc5 11.c4=) 10.a3 (10.a4 ba4 11.Ra4 c5 12.bc5 dc5+=) 10...Re8 (10...c5 11.c4 Rb8 12.dc5 dc5 13.Qe2 bc4 14.Bc4+=) 11.c4 (11.a4 ba4 12.Ra4 c5=) 11...c6 (11...e5 12.Be2 e4=) 12.c5 (12.Nb3 d5 13.c5 Qc7+=) 12...Qc7 (better is 12...dc5!? 13.dc5 Nc5 14.Bg6 Na4 15.Bf6 Bf6=+) 13.Qc2+= Rad8 14.a4 Ng4 15.ab5 cb5 16.c6 Bc6 17.Ra6 Nb8 18.Ra2 Rc8 19.Rfa1 Bf3 20.Qc7+– Rc7 21.Nf3 Nc6 22.h3 Nf6 23.Bb5 Rb8 24.Bc6 Rc6+/- 25.Ra8 Rcb6 26.Rb8 Rb8 27.Ra4 Nd5+= 28.Ba3 Nb6 29.Ra7. Marcos_Yunge (1650) – klerikSIACC, internet, 2007.

6.0-0 d5 7.Bd3+=.

6.0-0 Nbd7 7.d3 (7.Nc3 Nb6 8.Bb3 Bf5=) 7...c6 (7...a5!? 8.a3 Nb6+=) 8.a3= a5 9.Qd2 (9.Nc3 b5 10.Ba2 Bb7=) 9...ab4 10.ab4 Ra1 11.Ba1 b5 (11...Nb6 12.Bb3+=) 12.Bb3= Qb6 13.c3 (13.Nc3 Bb7=) 13...Bb7 14.e4 (14.Na3 Ra8 15.Bb2 c5+=) 14...e5 (14...Ra8 15.Bb2-/+) 15.Qe2 c5 16.Nbd2 cb4 (16...Ra8!?+=) 17.cb4= Rc8 (17...Bh6 18.d4=) 18.Bb2 Nf8 (18...d5 19.d4 de4 20.Ne5 Ne5 21.de5=) 19.Ng5 (19.d4!?+=) 19...Rc7= 20.Rc1 Re7 (20...Rc1 21.Bc1 d5 22.Bb2=) 21.Nf7 (21.h3 d5+=) 21...Rf7= 22.Bf7 Kf7 23.Nf3 (23.Qe3!? Qa6 24.d4=) 23...Ne6-/+ 24.g3 Nd7 (24...Bh6 25.Ra1-/+) 25.Qc2 (25.Bc3 d5-/+) 25...Bh6 (25...d5 26.Qb3 Qd6 27.Ra1-/+) 26.Ra1+= Nb8 ½–½. Earle,Dominic James – Elias,David (1605), MSR Deti a Mladeze CH10, 2018.

6.0-0 e5 7.d3 a5 8.b5? (8.a3 Nbd7=) 8...Nbd7 (8...d5 9.Bb3 a4 10.Ba4 Ra4 11.Be5–+) 9.Nbd2? (9.a4 d5 10.Ba2 Re8=) 9...b6?? (better is 9...d5–+) 10.a4 h6 11.h3 Nh7 12.e4 Kh8 13.d4 Qe7 14.de5 Ne5 15.Bd5 Rb8 16.Ne5 de5? 17.Nf3 Bb7? 18.Ba3+– Qe8 19.Bf8 Qf8? 20.Bb7 Rb7 21.Qd5 Rb8 22.Ne5 Ng5 23.f4 Ne6 24.Nd7 Qe7 25.Nb8 Bd4 26.Kh1 Qh4 27.Rad1 Bf2 28.f5 Nf4 29.Qd8 Qd8 30.Rd8 (30.Rd8 Kh7 31.Rf2+–) 1–0. bratek55 (1700) – cichykutno (1695), kurnik, 2011.

6.0-0 e5 7.h3 Nbd7 8.a4 Re8 9.Ra3 a5 10.b5 d5 11.Ba2 c5 12.e4 d4 13.Ng5 Re7 14.Rg3 Nf8 15.f4 ef4 16.Rf4 Be6 17.c4?! dc3 18.Bc3 Nh5!? 19.Qh5 gh5 (19...Ba2 20.Qd1; 19...Bc3 20.dc3!) 20.Rf7! (20.Ne6? Ne6+/-) 20...Rf7 (20...Bf7? 21.Nf7+/-) 21.Nf7 Bf7? (21...Kf7 22.Rg7 Ke8 23.Be6 Ne6 24.Rg8 Nf8 25.Bg7 Qe7 26.Rf8 Qf8 27.Bf8 Kf8 28.Nc3) 22.Rg7 Kh8! 23.Rf7 Kg8 24.Rg7 Kh8 25.Rd7 Qf6 26.Bf6# 1–0. Pietrzak,Wojciech – NN, simul, 2000 (Pietrzak).

5.Bc4 e6

6.0-0 d5 7.Bb3 c6 (7...a5 8.ba5 c5 9.c4=) 8.d3 Nbd7 9.Nbd2 e5 (9...a5 10.a3=) 10.e4 (10.Ne5!? Ne5 11.Be5+=) 10...Re8 11.ed5 (11.Re1 Qe7=) 11...cd5 12.Re1 e5 draws heavy fire 12...Qb6 (12...Qc7 13.a3=) 13.a3 (13.Ne5 Qb4 14.d4=) 13...Ng4 (13...Qc7 14.c4 d4 15.c5+=) 14.Re2 (14.d4 Rd8 15.h3 Nf2 16.Kf2 e4 17.Ne4 de4 18.Re4 Nf6+/-) 14...Qd6+= 15.h3 (15.c4 d4+=) 15...Nh6 (15...Ngf6 16.c4 Nh5 17.Re1+/-) 16.c4+/- Rd8 (16...a5+/-) 17.Rc1 (17.cd5!? b5+–) 17...d4 (better is 17...e4!? 18.Bg7 ef3 19.Bh6 fe2 20.Qe2 Nf6+=) 18.c5+/- Qc7 19.Ne4 (19.Nc4 Kh8+/-) 19...Nf8 (19...a5 20.Nd6+/-) 20.Rcc2 (20.Nd6!?+/-) 20...Ne6 (20...Be6 21.Be6 Ne6 22.Nd6+=) 21.Nd6 Nf4 (21...Nf5 22.Ne5 Be5 23.Re5 Nd6 24.cd6 Qd6+/-) 22.Re1+– Rf8 (22...Bf5 23.Ne5 Be5 24.Re5 Rd6 25.cd6 Qd6 26.Rec5+–) 23.Bc1 (23.Ne5 Be6 24.Bc4 Be5 25.Re5 Bc4 26.Rc4 Ne6+–) 23...Ne6 (23...Nf5 24.Ne5 Be5 25.Re5 Ne6+–) 24.Bh6 Bh6 25.Ne5 Bf4 (25...Ng5 26.h4 Ne6 27.Nef7 Rf7 28.Re6 Be6 29.Be6+–) 26.Qf3 (better is 26.Nef7!? Rf7 27.Nf7 Qf7+–) 26...Be5 27.Re5 Rb8 28.Rce2 (better is 28.Qf6+–) 28...Ng7 (28...b6 29.Nc8 Rbc8+–) 29.Re7 Qc6 30.Bf7 (30.Qf6 Bh3 31.gh3 Qd6 32.cd6 h5 33.Bf7 Kh8 34.Qg6 Nf5 35.Qf6 Kh7 36.Bg6 Kg8 37.Bh7) 30...Kh8 31.Qf6 Bd7 (31...Qa6+–) 32.Qd4 Rbd8 33.Bd5 (33.Bd5 Rf7 34.Nf7 Kg8 35.Nd8 Qd5 36.Qg7) 1–0. tche – bluewolf, net–chess.com, 2017.

6.Bb3 d5 7.d4 b6 8.c4 c5 9.bc5 bc5 10.dc5 Nc6 11.cd5 ed5 12.0-0 Bb7 13.Nbd2 Ne4 14.Bg7 Kg7 15.Ne4 de4 16.Qd8 Rad8 17.Ng5 Ne5 18.Rfd1 h6= 19.Nh3 Nd3 20.f3 Nc5 21.Rd8 Rd8 22.Nf2? ef3–+ 23.gf3 Nb3 24.ab3 a6 25.e4 Rd2 26.Kf1 Rb2 27.Ra3 h5 28.Nd3 Rh2 29.Nc5 Bc8 30.Na6 Ba6 31.Ra6 Rb2 32.Rb6 Kh6 33.f4 Kg7 34.e5 h4 35.b4 h3 36.Kg1 Kf8 37.Rb8 Ke7 38.b5 Ke6 39.Rb7 Rb4 40.Kh2 Rf4 41.Kh3 Ke5 42.b6 Rb4 43.Rb8 Kd6 44.b7? Kc7 45.Rf8-/+ Kb7 46.Rf7= Kc6 47.Rf6 Kd5 48.Rg6 Rb3 49.Kh4 ½–½. Meier,Bernd (1720) – Johnson,Marc David, Internet Section, 2003.

5.Bd3 d6

6.0-0 e5 7.Nc3 Qe7 (7...a5 8.b5=) 8.e4 c6 (8...Nc6 9.b5 Nd4 10.Nd4 ed4 11.Ne2=) 9.a3 Nbd7 10.Qe2 (10.Re1 Nb6=) 10...Re8 (10...Nh5 11.Qe3=) 11.Bc4 Nf8 (11...b5 12.Bb3=) 12.Rfe1 (12.b5 Ne6+=) 12...Ne6= 13.d3 (13.b5 Nf4 14.Qd1 Be6 15.Be6 Qe6 16.bc6 Qg4=+) 13...Nf4 (13...b5 14.Bb3=) 14.Qd1 b5 15.Ba2 a5 (15...Bg4 16.h3 Be6 17.Be6 Qe6 18.Bc1=) 16.Ne2 N6h5 17.Nf4 Nf4 (< 17...ef4 18.Bg7 Kg7 19.c4+=) 18.d4 (18.ba5 Ra5 19.d4 Bg4=+) 18...ab4 (18...Bg4 19.h3 Bh5 20.c3=+) 19.ab4= Bg4 20.h3 Bh5 21.c3 d5 (21...ed4 22.cd4 d5 23.Qb3 Bf3 24.Qf3=+) 22.de5-/+ Bf3 23.Qf3 Qe5 24.Bb3 Ra1 25.Ra1 de4 26.Qe3 Qg5 27.g4 Qe5 28.Ra7 Nd5 29.Qe2 e3 30.Bd5 ef2–+ 31.Qf2 Qd5 32.Ra1 Qd3 33.Rf1 Re7 34.Qf3-/+ Qf3 35.Rf3 Re2 36.Rf2 Re3 37.Kg2 Bc3 38.Bc3 Rc3 39.Rf1 Rc4 40.Rb1 Kg7 (41.Kf3 f5 42.gf5 gf5–+) 0–1. Woschkat,Karl_Heinz – Taboada,Pedro Pablo, IECG, 1997.

6.Nc3 Nbd7 7.0-0 Nb6 8.Qe2 e5 9.a4 Nbd5 10.Nd5 Nd5 11.b5 Nb4 12.Rab1 Nd3 13.Qd3 Be6 14.Qe2 f5 15.d3 c6 16.c4 cb5 17.ab5 Re8 18.Bc3 g5 19.Rfc1 g4 20.Nd2 b6 21.f3 h5 22.Ra1 Qg5 23.Qf2 Bh6 24.Re1 Qg6 25.Ra3 f4 26.ef4 Bf4 27.Ne4 Rf8 28.Bb4 gf3 29.g3 Bh6 30.Bd6 Rf7 31.Be5 Bh3 32.d4 Bf4? 33.Nf6! Kf8 34.Qf3 Be5 35.Qa8 Kg7 36.de5 (36...a5 37.ba6+–; < 36.Re5 Qf6 37.Qf3 Qf3 38.Rf3 Rf3-/+) 1–0. Ventimiglia,Charles – Schlotter,Stephan, internet, 1998.

6.Nc3 e5 7.0-0 Nc6 8.b5 Ne7 9.e4 Ne8 10.Qe2 f5 (10...Nf6 11.Bc4+=) 11.Bc4 Kh8 12.Ng5 Nf6? (better is 12...Nd5! 13.Nd5 Qg5+=) 13.Nf7+– Rf7 14.Bf7 f4 (14...fe4 15.Ne4 Ne4 16.Qe4+–) 15.a4 g5 16.h3 g4 17.hg4 Bg4 18.f3 Bd7 19.a5 Qf8 20.Qc4 Rc8 21.Be6+– Be6 22.Qe6 Nh5 23.b6! Ng3 24.a6 ba6 25.ba7 Nc6? 26.Ra6 Nd4 27.Qc8! (27.Qc8 Qc8 28.a8Q+–) 1–0. gtate (2765) – maaac (2365), net–chess.com, 2009.

6.h4 Bg4 7.c4 Nbd7 8.Qc2 Bf3 9.gf3 h5 10.Rg1 Ne5 11.Be5 de5 12.Bg6 fg6 13.Qg6 Rf7 14.Nc3 Qd6 15.c5 Qd3 16.Qd3 Raf8 17.Ne4 Ne4 18.Qe4 Rf3 19.Qe5 R8f7 20.Qh5 Rf2 21.Rg7 Kg7 22.0-0-0 Rg2 23.Qe5 Kg8 24.Qc7 Rg4 25.h5 Rh7 26.Qd8 Kf7 27.Rf1 Ke6 28.Qc8 Black resigned 1–0. yodamo (1790) – The Bin Man (1780), ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Bd3 d6)

5.d4 a5

6.a3 d6 7.Nbd2 b6 8.Be2 Bb7 9.0-0 Nbd7 10.Ng5 h6 11.Ngf3 c5 12.bc5 dc5 13.c4 Qc7 14.h3 Rad8 15.Rb1 cd4 16.ed4 Ne4 17.Ne4 Be4 18.Bd3 Bf3 19.Qf3 e5 20.d5 Nc5 21.Bc2 Rfe8 22.Bc3 e4 23.Qe3 f5 24.Bg7 Kg7 25.Rb5 Rd6 26.f3 ef3 27.Qe8 1–0. marus2 – Wichtel01, internet, 2001.

6.b5 a4 7.c4 c6 8.Bd3 d5 9.0-0 Bg4 (9...dc4 10.Bc4 Qb6 11.Nc3 cb5 12.Nb5=) 10.h3 Bf3 (10...dc4 11.Bc4 Bd7 12.Na3+=) 11.Qf3+= (< 11.gf3 Qd7 12.Nc3 a3-/+) 11...Nbd7 12.Na3 Nb6 (12...Qa5 13.Rfd1+=) 13.Rfc1 (13.bc6 bc6 14.Rab1 Rb8+/-) 13...e6 (13...cb5!? 14.cb5 Qd6+=) 14.Rab1+/- Nbd7 15.bc6 bc6 16.cd5 cd5 (16...Nd5 17.Nc4 (17.Rc6?! Nb4 18.Be4 Nc6 19.Bc6 Ra6+/-) 17...c5 18.Ba3 cd4 19.Bf8 Qf8 20.Be4 de3 21.Ne3+/-) 17.Nb5+– Rc8 (better is 17...Qa5 18.Bc3 Qb6+–) 18.Ba3 e5 19.Bf8 e4 20.Qd1 Bf8 21.Be2 a3 22.Rc8 Qc8 23.Qa4 h5 24.Na3 Qc3 25.Nb5 Qd2 26.Bf1 g5 27.Rd1 Qb2 28.Qb3 Qb3 29.ab3 g4 30.hg4 hg4 31.Be2 g3 32.fg3 Bh6 33.Kf2 Bf8 34.Ra1 Kg7 35.Ra6 Bb4 36.Nd6 Kg6 37.g4 Bd2 38.Nf5 Kg5 39.Kg3 Be1 40.Kh3 Nf8 41.Ra7 Kg6 42.Ne7 Kg5 43.Rb7 Ne6 44.b4 Bf2 45.Nf5 Kg6 46.b5 Be3 47.Ne3 Nf4 48.Kh4 Ne2 49.Nf5 Nf4 50.b6 Ng2 51.Kg3 Ne1 52.Rc7 e3 53.Ne3 Ne4 54.Kh2 Nf3 55.Kg2 Nd4 56.b7 (56.b7 Nb5 57.Rc6 f6 58.b8Q Kf7 59.Qb5 Kg6 60.Qd5 Kh7 61.Rc7 Kh6 62.Qh5#) 1–0. Nadanian,Ashot – Antonio,Rogelio Jr, Internet Chess Club 3m + 0s blitz, 2008.

6.b5 b6 7.a4 Bb7 8.c4 d6 9.Be2 Nbd7 10.0-0 Ne4 11.Nbd2 Nd2 12.Qd2 e5 13.de5 de5 14.Rfd1 Nc5 15.Qd8 Rad8 16.Rd8 (better is 16.Ne5!? Rd1 17.Bd1+=) 16...Rd8=+ 17.Be5? (better is 17.Rd1 Re8 18.Ra1=+) 17...Bf3–+ 18.Bg7 Be2 19.Bf6 Rd1 (19...Rd2 20.h3–+) 20.Rd1 Bd1 21.Be5 Ne6 22.f3 Ba4 23.Kf2 Bb3 24.c5 bc5 25.g4 a4 26.f4 a3 27.Ke2 a2 28.Kd2 Nd4! 29.ed4 a1Q 30.dc5 Qd1 31.Kc3 Qc2 32.Kb4 Qc4 33.Ka3 Qa4 34.Kb2–+ Bd5 35.b6 Qb3 36.Kc1 Be4 37.Kd2 Qd3 38.Ke1 Bf3 39.Kf2 Qe2 40.Kg3 Qg2 41.Kh4 Qg4 0–1. futsalboy (1705) – peanutmaster (1845), kurnik, 2011.

6.b5 c5 7.dc5 Qc7 8.Bd4 d6 9.cd6 Qd6+/-.

6.b5 c6 7.a4 d5 8.c4 Bg4 (8...Bf5 9.Bd3=) 9.Nbd2= Nbd7 10.Be2 Re8 11.0-0 dc4 (11...Qc7 12.Rc1+=) 12.bc6 bc6 13.Ne5 (13.Nc4 Qc7+=) 13...Be2 14.Qe2 Ne5 15.de5 Nd5 16.Nc4 Nb4 17.Rfd1 Qc7 18.Rac1 Red8 19.f4 f6 (19...Rab8 20.Rd8 Qd8 21.Rd1+=) 20.ef6 ef6 21.Bd4 f5 22.Bg7 Qg7 (22...Kg7 23.Qb2 Kg8 24.Qe5 Qe5 25.Ne5 Rd1 26.Rd1+=) 23.Ne5 h6 (23...Qe7 24.Rd8 Rd8 25.Rc6+/-) 24.Rd8 Rd8 25.Nc6 Re8 (25...Nc6!? 26.Rc6 Kh7+/-) 26.Ne5+- Kh7 (26...Qa7+-) 27.Qb5 Qa7 28.Qe8?? (better 28.Rc5 Rb8 29.Qa5+-) 28...Qe3= 29.Kf1 Qc1 30.Ke2 Qd2?? (better 30...Qc2 31.Kf3 Qc3 32.Kf2 Nd3 33.Nd3 Qd3 34.Qf7 Kh8 35.Qg6 Qd2 36.Kg3 Qe3 37.Kh4 Qf4 38.Kh3 Qg5 39.Qg5 hg5=) 31.Kd2 (31.Kd2 g5 32.Qf7 Kh8 33.Ng6) 1-0. sezwho (2045) - jlindner (2030), Rated Bullet game, lichess.org, 2014.

6.b5 d5 7.Bd3=.

6.b5 Ne4 7.Nbd2 Nd2 8.Qd2 c5 9.bc6 (9.c4 cd4 10.Bd4 d6+=) 9...bc6 (9...Nc6 10.Be2=) 10.c4 a4 11.Ba3 d5 12.Rb1 Bf5 13.Bd3 Qc8 (13...Bd3 14.Qd3 Nd7 15.cd5 Qa5 16.Qd2 Qd5 17.Qc2+= (worse 17.Be7 Qe4 18.Rc1 Qe7-/+)) 14.0-0 Re8 15.cd5 Bd3 16.Qd3 cd5 17.Rfc1 Qe6 18.Rb7 Bf8 (18...Nc6 19.Qb5 Rec8 20.Ng5+/-) 19.Qb5 Rc8 20.Rc8 Qc8 21.Qd5?? (better 21.Ne5+/-) 21...e6-/+ 22.Qb5 Ba3 23.h4 (23.Ne5!?-/+) 23...Bd6 24.Ng5?? (better 24.Nd2-+) 24...Qc1 25.Qf1 Qf1 (better 25...Bh2! 26.Kh2 Qf1-+) 26.Kf1=+ Nc6 27.Nf7 Bf8 28.Ng5 Nb4 (28...Nd8 29.Rc7= (worse 29.Rh7 Bg7-/+)) 29.Nh7+= Bg7 30.Ng5 (30.Rb4 Kh7 31.Ke2 Bf8 32.Rb7 Kg8+=) 30...Na2= 31.Ne6 Bf8 32.g4 a3 33.h5?? (33.Nc7 Ra5 34.Ne8 Be7 35.Re7 Kf8-+) 33...gh5 (33...Nc3 34.Nf8 Kf8 35.h6-+) 34.gh5?? (better 34.Nc7 Ra5 35.Ne8-/+) 34...Nc3-+ 35.h6 (35.Nf8 Kf8 (35...Rf8?! 36.Ra7 a2 37.Ke1=+) 36.h6 Kg8 37.Rg7 Kh8-+) 35...a2 36.h7 Kh8 37.Ng5 (37.Kg2 a1Q 38.Nf4 Qa6-+) 37...a1Q 38.Kg2 Bg7 (38...Qa2 39.Nf7 Kh7 40.Ne5 Bg7 41.Rf7-+) 39.Ne6 (39.Rc7 Qd1 40.Nf7 Kh7 41.Ng5 Kh6-+) 39...Kh7 (better 39...Qd1 40.Rg7 Ra1 41.Kg3-+) 40.Rg7 Kh8 41.Rg3 Qa3 (41...Qb1 42.Rh3 Kg8 43.Nf4-+) 42.Ng5 (42.Rh3 Kg8 43.Ng5 Qc1-+) 42...Kg8 (42...Qa2 43.Rh3 Kg7 44.Rg3-+) 43.Ne4 (43.Nf3 Kf8-+) 43...Kf8 44.Nc5 (44.Rg4-+) 44...Ne4! 45.Rf3 (45.Ne4 Qb2 Combination) 45...Nf6! 46.Rf6 Kg7 47.Rf3 Ra7 (47...Qb4 48.Ne6 Kg8 49.Rf6-+) 48.Ne6 Kh8 49.Ng5 (49.e4 Qa4 50.Rf4-+) 49...Rg7 50.Rg3 Qe7 51.f4 Qb7 52.Kf2 Rh7?? (better 52...Re7 53.Rh3 Kg7 54.Rh7 Kf6 55.Re7 Ke7-+) 53.Nh7= Kh7 54.f5 1-0. cipiripi (2340) - zsolti_83 (2425), Rated Blitz game, lichess.org, 2019.

5.d4 b6

6.b5 Bb7 7.Be2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.c4 d5 12.cd5 Qd5 13.Nc3 Qd7 14.bc6 Bc6 15.0-0 Ne4 16.Ne5 Be5 17.de5 Nc3 18.Qd7?? (better is 18.Bc3 Qd1 19.Rd1+=) 18...Ne2–+ (18...Bd7 19.Bc3 Rc8 20.Bd4+=) 19.Kh1 Nd7 20.Re1 Bb5 21.Rd1 Rc8 22.g3 Nc3 23.Rc1 Rc4 24.Rc3 Ne5 25.Rc4 Nc4 26.Kg2 Bc6 27.Kf1 Bf3 28.Ke1 b5 29.h4 b4 30.Bb2 Nb2 (30...Nb2 31.Kd2 Na4–+) 0–1. mihai740609 – silfax, kurnik, 2011.

6.b5 Bb7 7.Be2 d6 8.c4 c5 9.0-0 Ne4 10.Nc3 cd4 11.Ne4 Be4 12.Bd4 e5 13.Bb2 Re8 14.Nd2 Bb7 15.e4 Qg5 16.f3 Nd7 17.Nb3 Nc5 18.Qd2 (18.Qd6? Rad8 19.Bc1 Qh4 (19...Rd6 20.Bg5 Ne6 21.Be3+/-) 20.Qd8 Qd8–+) 18...Bh6 19.Rad1 (19.Qg5 Bg5 20.Rfd1 Be3 21.Kf1 Red8+=) 19...Nb3 (19...Qd2!? 20.Nd2 Be3 21.Kh1 a6=+) 20.Qg5= (20.ab3?? Qd2 21.Rd2 Bd2–+) 20...Bg5 21.ab3 a6 22.Rd6 ab5 23.Rb6?? (better is 23.Rb1=) 23...Be3–+ 24.Kh1 Bb6 0–1. mihai740609 – ibush, kurnik, 2011.

6.c4 Bb7 7.Nbd2 d5 8.Rc1 dc4 9.Bc4 Nc6 10.a3 Qd7 (10...a6 11.0-0+=) 11.0-0 (11.Bb5 Qe6+/-) 11...Rad8 12.Qb3 e6 13.Rcd1 Qc8 14.Rfe1 Ne7 15.e4 Ba6 16.b5 Bb7 17.Bd3 c6 18.Rc1 Qd7 19.a4 Nh5 20.g3 Kh8 21.bc6 Nc6 22.Bb5 a6 23.Bc6 Bc6 24.a5 ba5= 25.Nc4 a4 26.Qa2 Bb5 27.Nce5 Qd6?? 28.Ba3+– Qb6 29.Bf8 Bf8?? 30.Nf7 Kg7 31.Nd8 Qd8 32.e5 Qd7 33.Red1 Qd5 34.Qd5 ed5 35.Rc7 Kh6 36.h4 a3 37.Ng5 (37.Ng5 Ng7 38.e6+–) 1–0. futsalboy (1755) – cehelskyy (1625), kurnik, 2011.

6.c4 Bb7 7.Nbd2 d6 8.Bd3 Nbd7 9.0-0 c5 10.a3 Qc7 11.Rc1 Rac8 12.Qb3 Bf3 13.Nf3 cb4 14.ab4 a5 15.ba5 ba5 16.Ra1 Rb8 17.Qc3 Ra8 18.Ra4 Rfb8 19.Rfa1 Qb6 (19...Ng4!? 20.R4a2 Nc5+=) 20.Bc1+/- Qb3 21.Qd2 Nb6? 22.R4a3+– Qb4 23.Qb4 ab4+= 24.Ra8 Ra8 25.Ra8 Na8 26.Nd2 d5 27.c5 Nc7 28.Nb3 Nd7 29.Bd2 e5 30.Bb4 ed4 31.ed4 Kf8? 32.c6+– Ke8 33.cd7 Kd7 34.Nc5 Kc6 35.Bc3 f5 36.f3 Kd6 37.g4 fg4 38.fg4 Bh6 39.Kf2 Bf4 40.h4 Bh6 41.g5 Bg7 42.Nb3 Ne6 43.Be2 Nf4 44.Bf1 Ne6 45.Ke3 h6 46.Bh3 Nf8 47.Bb4 Kc6 48.Bf8 hg5 49.Bg7 gh4 50.Bf6 g5 51.Bg5 Kb5 52.Bh4 1–0. futsalboy – litner, kurnik, 2011.

6.c4 Bb7 7.Be2 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Ne4 11.0-0 c5 12.b5 d5 13.Nbd2 dc4 14.Bc4 (better is 14.Nc4!? Nd7 15.dc5 Nec5 16.Bg7 Kg7 17.Qd4 f6 18.Rd1+=) 14...Nd2=+ 15.Qd2 Bf3 16.gf3 cd4 17.Bd4 Bd4 18.Qd4 Qd4 19.ed4 Rd8 20.Rd1 Nd7 21.Kf1 Nf6 22.Ke2 Nd5 23.Rd2 Kg7 24.Kd3 e6 25.Bd5 Rd5 26.Kc4 Rh5 27.d5 ed5 28.Rd5 Rh2 29.Rd2 h5 30.Kd5 h4 31.Kc6 h3 32.Kb6 Rg2 33.Kc7?? h2 34.b6 h1Q 35.b7 Qb1 36.b8Q Qb8 37.Kb8-/+ Kf6 38.Kc7 Kf5 39.Kd6 Kf4 40.Ke7 f5 41.Kf6 Kf3 42.Rb2 f4 43.Ke5 g5 44.Kf5 Rf2 45.Rb3 Kg2 46.Kg5 f3 47.Kg4 Rf1 48.Rb2?? f2–+ 49.Rb3 Ra1 50.Rb2 Kg1 (50...Kg1 51.Rf2 Kf2–+) 0–1. futsalboy (1640) – sotirovn (1960), kurnik, 2011.

6.c4 c5 7.bc5 bc5 8.d5 Bb7 9.Nc3 a5 10.a3 a4 11.Be2 (11.Na4? Qa5 12.Nc3 Ne4-/+) 11...d6 12.0-0 (12.Na4? Qa5 13.Nd2 Qa4 14.Qa4 Ra4–+) 12...Nbd7 13.Na4 Nb6 14.Nb6 Qb6 15.Qc2 Rfc8 16.Rfb1 Qc7 17.Bd3 h6 18.h3 g5 19.Bc3 Nd7?? (better is 19...Rcb8+–) 20.Bg7 Kg7 21.Qb2 f6 22.Qb7 Ne5 23.Ne5 fe5 24.a4 Kf6 25.Qc7 Rc7 26.a5 Rca7 27.Rb5 1–0. Fournier,Frederic (1960) – Luciferov, Active, 2011.

6.c4 c5 7.Be2 cb4 8.a3 ba3 9.Ba3 d5 10.Nbd2 Bb7 11.c5 Ne4 12.Ne4 de4 13.Nd2 Nd7 14.Rb1 Bc6 15.cb6 Nb6 16.0-0 Qd7 17.Nc4 (17.Qc2 Rfc8 18.Ne4 Qf5=) 17...Nd5 18.Qd2 Rab8 19.Na5 Ba8 20.Bc5 Rfc8 21.Ra1 Nf4! 22.Ra2 Rc5!–+ 23.dc5 Qd2 24.Rd2 Bc3 25.ef4 Bd2 26.Nc4 Bf4 27.g3 Bg5 28.Ra1 Bd5 29.Ra7 Rb1–+ 30.Kg2 Rc1 31.h4 Bf6 32.Ne3 Rc5 33.h5 Kg7 34.Rd7 Be6 35.Rd8 Bg5 36.Rd2 f5 37.Rb2 gh5 38.Bh5 Be3 39.fe3 f4! 40.Be8 f3 41.Kf2 Rc1 (41...Rc1 42.Bh5 Bc4–+) 0–1. Rickenbach,Jakob – Sibarevic,Milenko (2380), Mendrisio op, 1989.

6.c4 c6 7.a4 a5 8.b5 cb5 9.cb5 Bb7 10.Bc4 d5 11.Bb3 Ne4 12.0-0 e6 13.Ne5 Nd7 14.f3 Ne5 15.de5 Nc5 16.Bc2 Qc7 17.f4 Ne4 18.Be4 de4 19.Nc3 Rad8 20.Qb3 Bd5 21.Qc2 Qc4 22.Rfc1 Rc8 23.Qf2 Qb3 24.Ba3?? Rc3–+ 25.Bf8 Bf8 26.Rab1?! Qc4 27.Qd2 Bb4 28.Rb4 ab4 29.a5 Rc1 30.Qc1 Qc1 31.Kf2 ba5 32.b6 Qd2 33.Kg3 Qe3 34.Kg4 h5 35.Kg5 Qf2 36.b7 Bb7 (36...Bb7 37.g3 Kg7 38.Kh4 Qh2 39.Kg5 Qg3; 36...Kg7 37.g4 Qg2 38.h3 Qh3 39.b8Q Qg4) 0–1. elsh1403 – alfil77, kurnik, 2011.

6.Bd3 Bb7 7.0-0 d6 8.Nbd2 Nbd7 9.c3 e5 10.c4?? (better is 10.e4=) 10...e4–+ 11.Ne4 Ne4 12.Be4 Be4 13.d5?? Bf3 14.Qf3 Bb2 15.Rab1 Bg7 0–1. mihai740609 – ibush, kurnik, 2011.

6.Bd3 Bb7 7.c4 d6 8.Nbd2 Nbd7 9.0-0 e6 10.Re1 Re8 11.Qc2 Rc8 12.a4 c6 13.a5 b5 14.Rac1 a6 15.Qb1 Qe7 16.cb5 cb5 17.Rc8 Rc8 18.Rc1 Qe8 19.Rc2 e5 20.de5 de5 21.Rc8 Bc8 22.Qc2 Bf8 23.Bc3 Bb7 24.Ne4 Nd5-/+ 25.Qb2 Nc3 26.Qc3=+ f5 27.Nfg5?? fe4–+ 28.Be4 Be4 29.Ne4 Qe7 30.Qb3 Kg7 31.g3 Qb4 32.Qd5 Qe7 33.Qb7 Qe6 34.Nc3 Kh6 35.Nd5 Nc5 36.Qa8 Qf7 37.Nb4 Qf6 38.Qc8 Bg7 39.Qh3+– Kg5 40.f4 (40.f4 ef4 41.ef4 Qf4 42.gf4 Kf4 43.Qg3 Ke4 44.Qg4 Ke5 45.Qg5 Ke6 46.Qc5+–) 1–0. Fournier,Frederic – Malpealat Marc, Coupe Federation, 1998.

6.Be2 Bb7 7.0-0 d5 8.Nbd2 Nc6 9.b5 Na5 10.a4 Nc4? (better is 10...c5!?+=) 11.Nc4+/- dc4 12.Bc4 Ne4 13.Be2 Rc8 14.c4 c6 15.Nd2 cb5 16.ab5 Qd6 17.Ra7 Rb8?? (17...Qb8 18.Ra4 Rfd8+–) 18.Ne4 Be4 19.Bf3 f5 20.Be4 fe4 21.Ba3 Qe6 22.Qc2 Rf7 23.g3 Bh6 24.Rd1 Qf6 25.Rf1 Be3?? 26.Qe4 Bd4 27.Re7 Bc5 28.Bc5 bc5 29.Qe5 Qe7 30.Qb8 Rf8 31.Qb7?? Qe2 32.Qd5+– Kg7 33.Qc5 h5 34.Qd4 Kh6 35.Qe3 Qe3 36.fe3 Rc8 37.Rc1 Rc5 38.b6 1–0. mihai740609 – 0ngbak, kurnik, 2011.

6.Be2 Bb7 7.0-0 e6 8.Nbd2 d5 9.c4 dc4 10.Nc4 Nbd7 11.b5 Nd5 12.Qc2 Rc8 13.Qb3 N7f6 14.Rfd1 c6 15.a4 cb5 16.ab5 Qc7 17.Ra7 Qc4 18.Bc4 Rc4 19.Bc3 1–0. mihai740609 – ira102, kurnik, 2012.

6.g3 Bb7 7.Bg2 d6 8.0-0 Nbd7 9.a3 e6 10.Nbd2 d5 11.c4 c6 12.Rc1 Rc8 13.Qb3 a6 14.cd5 Nd5 15.e4 N5f6 16.e5 Nd5 17.Ne4 f5? (better is 17...Rc7+=) 18.Nd6+– Rb8 (better is 18...Ba8 19.Nc8 Qc8+–) 19.Nb7 Rb7 20.Rc6 Rc7 21.Rfc1 Rc6 22.Rc6 Qe7 23.Qa4 a5 24.ba5+– ba5 25.Qa5 Rb8 26.Qd2 N7b6 27.Qc2 Bh6 28.Nd2 Bd2 29.Qd2 Na4 30.Rc2 Nb2 31.Rb2 Rb2 32.Qb2 Kg7 33.Bd5 ed5 34.Qb4 Qe6 35.a4 f4 36.Qd6 Qg4 37.Qe7 Kg8 38.Qe8 Kg7 39.Qe7 Kg8 40.Qh4 Qd1 41.Kg2 f3 42.Kh3 Qa4 43.Qd8 Kg7 44.Qd5 Qd7 45.g4 h5 46.Qf3 hg4 47.Qg4 Qd5 48.f3 Kh6 49.Qf4 g5 50.Qf6 Kh5 51.Kg3 Qd4 52.Qh8 Kg6 53.Qg8 Kf5 54.Qf7 Ke5 55.Qg7 Kd5 56.Qd4 Kd4 57.Kg4 Ke5 58.Kg5 Ke6 59.Kg6 Ke7 60.Kg7 Ke6 61.h4 Kf5 62.h5 Kf4 63.h6 Kf3 64.h7 Ke4 65.h8Q Ke5 66.Qf8 Kd4 67.Qe7 Kd5 68.Qf6 Ke4 69.Qg5 Kd4 70.Qf5 Ke3 71.Qg4 Kd3 72.Qf4 Ke2 73.Qg3 Kd2 74.Qf3 Kc2 75.Qe3 Kd1 76.Qf2 Kc1 77.Qe2 Kb1 78.Qd2 Ka1 79.Kf6 Kb1 80.Ke5 Ka1 81.Kd4 Kb1 82.Kc3 Ka1 83.Qb2 1–0. mihai740609 – leslawg, kurnik, 2011.

5.d4 c6

6.a3 d5 7.c4 dc4 8.Bc4 Bg4 9.Nbd2 e6 10.0-0 Nbd7 11.h3 Bf3 12.Nf3 Nb6 13.Bd3 a6 14.Rc1 Nbd5 15.Ne5 Nh5 16.Be2 Qg5 17.Bh5 Qh5 18.Qh5 gh5 19.Nd7 Rfd8 20.Nc5 Rab8 21.Rc2 h4 22.Rfc1 h5 23.Ne4 Kh7 24.Nd2 Kh6 25.Nf3 Bf6 26.e4 Nf4 27.e5 Be7 28.Kf1 Rg8 29.Rc3 Rg2 30.R1c2 Rg7 31.Bc1 Bg5 32.Ng5 Kg5 33.Rf3 f5 34.ef6 Kf6 35.Rf4 Ke7 36.Rh4 Rbg8 37.Rh5 Rg1 38.Ke2 Rd8 39.Be3 Ra1 40.Rc3 Ra2 41.Kd3 Kd7 42.Rh7 Kc8 43.Re7 Ra1 44.Re6 Kb8 45.h4 Ka8 46.h5 Rd1 47.Ke2 1–0. mihai740609 – staszek7777, kurnik, 2012.

6.Bd3 d6 7.0-0 Nbd7 8.Nbd2 Qc7 9.c4 Re8 10.Rc1 e5 11.d5 c5 12.e4 b6 13.b5 Nh5 14.h3 Ndf6 15.Kh2 Nf4 16.Be2 Qd7 17.Ng1 Bh6 18.g4 Nh3 19.Kh3 Bd2 20.Qd2 Ng4 21.Qg5 Nf2 22.Kg2 Ne4 23.Bd3 Ng5 0–1. mihai740609 – selos57, kurnik, 2012.

6.Bd3 d6 7.0-0 Nbd7 8.h3 Qc7 9.g3 Re8 10.Kg2 e5 11.de5 de5 12.e4 Nf8 13.Nbd2 Nh5 14.c4 Qd7 15.Rh1 Qd3 16.Qa4 Ne6 17.Rad1 Nhf4 18.Kh2 Qe2 19.Rhg1 Qf2 20.Kh1 Ne2 21.Rg2 Ng3 22.Kh2 Qe3 23.Rg3 Nf4 24.Re1 Qf2 25.Kh1 Qg3 0–1. mihai740609 – selos57, kurnik, 2012.

5.d4 Nc6

6.a3 d5 7.c4 Bf5 8.Nc3 dc4 9.Bc4 e6 10.0-0 a6 11.Bd3 Ne7 12.h3 c6? (better is 12...Bd3 13.Qd3 Ned5=) 13.e4+– Bh3 14.gh3 Nh5 15.e5 Nf4 16.Kh2 b6 17.Bc1 Nd3 18.Qd3 Qc8 19.Bg5 Nf5 20.Ne4 h6 21.Nf6 Bf6 22.Bf6 c5? 23.Rac1 Ra7 24.dc5 b5 25.Qd2 Kh7 26.Rcd1 Rg8 27.h4 Qc7 28.Ng5! hg5 29.hg5 a5 30.Qd3 Rb7 31.Qh3 Nh6 32.Qh6 1–0. Fournier,Frederic (2090) – Chicot,Patricia, Ch Club, 2008.

6.a3 d5 7.c4 Bg4 8.Be2 Bf3 9.Bf3 dc4 10.Nd2 b5?? (better is 10...Nd5 11.Nc4 b5+=) 11.Bc6+– Rb8 12.Bf3 Nd5 13.Bd5 Qd5 14.Bc3 (better is 14.Qf3!? c6+–) 14...Qg2 15.Rf1 Qh2 16.Qf3 Rb6 17.0-0-0 Rf6+/- 18.Qe2 Rd6 19.Rh1 Qg2 20.Rdg1 Qb7 21.Qg4 Qa6 22.Kb2 Qa4 23.Qh3 h5 24.f4 Ra6 25.Nb1 Qb3 26.Kc1 Ra3 27.Na3 Qc3 28.Nc2+– a5 29.ba5?? b4 30.e4+– Bd4 31.Qc3 Bc3 32.Rd1?? Ra8= 33.Rd5 b3 34.Ne3 b2?? 35.Kc2+– Rb8? 36.Rb1 Bg7 37.Nc4 Rb4 38.Nb2 Re4 39.a6 Bb2 40.Rb2 Ra4 41.Rd8 Kg7 42.Rd7 Ra6 43.Rc7 Re6 44.Rbb7 h4 45.Re7 Re7 46.Re7 h3? 47.Re1 f6?! 48.Rh1 g5 49.fg5 fg5 50.Rh3 Kg6 51.Rh1 Kf5 52.Kd2 Kf4 53.Ke2 g4 54.Rg1 g3 55.Rg2 Kg4 56.Ke3 Kh4 57.Kf3 Kh3 58.Rg3 Kh4 59.Rg4 Kh5 60.Kf4 Kh6 61.Kf5 (61.Kf5 Kh5 62.Re4 Kh6 63.Re7 Kh5 64.Rh7) 1–0. Fournier,Frederic (1825) – pedromanuelm (1630), Active, 2008.

6.b5 Nb8 7.Be2 d6 8.0-0 c6 9.a4 Bd7 10.c4 a6 11.Nc3 e5 12.de5 de5 13.Ne5 Re8 14.Nd7 Qd7 15.Qc2 cb5 16.cb5 Qe6 17.Rac1 Rc8 18.Bf3 Ra7 19.Qd3 ab5 20.Nb5 Rc1 21.Rc1 Ra4 22.Qd8 Qe8 23.Rc8 Qd8 24.Rd8 (Black forfeits on time, 1–0). guest269 – guest410, ICC, 2002.

5.d4 d5

6.a3 Ne4 7.Nbd2 b6 (7...Bf5 8.Ne4 Be4 9.Nd2=) 8.Ne4+= de4 9.Nd2 Bb7 10.c4 c5 11.Nb3 (11.bc5 bc5 12.Rb1 Qa5+=) 11...cd4= 12.Bd4 Nc6 (12...e5 13.Bc3=) 13.Bg7+= Kg7 14.Qc2 (14.c5 Ne5+=) 14...Ne5 15.Qc3 f6 16.Rd1 Qc7 17.Nd4 Qc8 18.Be2 a5 (18...Nd3 19.Bd3 ed3 20.f3+=) 19.0-0 ab4 20.ab4 Rd8 21.Ra1 Ra1 22.Ra1 Kh6 23.c5 (23.Ra7 Bd5 24.Re7 Bc4 25.Bc4 Qc4 26.Qc4 Nc4 27.Re4 Ra8+/-) 23...bc5 24.bc5 Rd5 25.Rc1 Nd3 26.Bd3 ed3 27.Qd2 (27.Qd3?! Rc5 28.Rc5 Qc5=) 27...Rc5?? (better 27...Kg7 28.c6 Ba6+=) 28.e4+- g5 29.Nf5 Kh5 (29...Rf5 30.Rc8 Bc8 31.ef5 Bf5+-) 30.g4! Kg4 31.h3 Kh3 (31...Kh5 32.Qd1 Kg6 33.Ne7 Kg7 34.Nc8 Rc8 35.Rc8 Bc8 36.Qd3 Be6+-) 32.Qe3 Kg4 33.Rc5 (33.Qg3 Kh5 34.Qh3 Kg6 35.Qh6 Kf7 36.Qg7 Ke8 37.Qe7) 33...Qc5+- 34.Qc5 Be4 35.Ne3 (better 35.Ne7 d2 36.Qd6 Bf5+-) 35...Kf3 36.Qe7 f5 37.Qg5 Ke2 (37...d2+-) 38.Nc4 (38.Nf1 f4 39.Qg4 Bf3 40.Qf4 Bc6 41.Qe3 Kd1 42.Qd2) 38...Kf3 (38...f4 39.Qg4 Bf3 40.Qf4 Bc6 41.Qe3 Kd1 42.Qd2) 39.Qg3 (39.Kf1 d2 40.Nd2) 39...Ke2 40.Qe3 (40.Qe3 Kd1 41.Qd2) 1-0. Gehaktbalmetjus (2135) - mixgr (2335), Rated Rapid game, 2019.

6.Nc3 Re8 7.Be2 c6 8.a3 Nbd7 9.0-0 e5 10.Ne5 Ne5 11.de5 Re5 12.Na4 Rg5 13.f4 Rf5 14.g4 Ng4 15.Bg4 Bb2 16.Nb2 Qb6 17.Bf5 Qe3 18.Rf2 Bf5 19.Qe1 Qd4 20.Qe5 Qb6 21.Na4 Qd8 22.Re1 Qf8 23.Qe7 Qh6 24.Qb7 Rc8 25.Qa7 Be4 26.Nc5 Bf5 27.Re7 Qh5 28.Nd3 Be4 29.Ne5 Qd1 30.Rf1 Qc2 31.Re8 Re8 32.Qf7 Kh8 33.Qe8 Kg7 34.Qf7 Kh6 35.Ng4 Kh5 36.Nf6 Kh6 37.Qh7 1–0. themonkey – NN, GameColony.com, 2002.

6.c4 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5).

6.c4 Nc6 7.Qb3 a5 8.b5 Nb4 9.c5 Bf5! 10.Na3 b6 11.c6 Ne4 12.Nc2?? Nc5!! 0–1. Tang Chi Yan – Trokenheim, email CTON 1996.

6.Be2 c6 7.Nbd2 Qb6 8.a3 a5 9.c3 ab4 10.ab4 Ra1 11.Qa1 Qc7 12.0-0 Bf5 13.c4 Be4 (13...dc4 14.Bc4 Nbd7 15.Bb3=) 14.Rc1 Bf3 15.Bf3 dc4 16.Nc4 Nbd7 17.Qa5 Qb8 18.Ra1 (18.b5 b6 19.Qa6 c5+/-) 18...Nh5 (better is 18...b5!? 19.Na3 Qd6+=) 19.Bh5+/- gh5 20.Qh5 Nf6 21.Qf3 Kh8 22.Ne5 (22.e4 e6+–) 22...Qc7 23.g3 e6 24.Qd1 Nd5 25.Nd3 Rg8 26.Qb3 Bh6? (26...Ne7 27.e4+–) 27.b5 (27.e4 Nf6 28.d5 Bg7 29.de6 Ne4 30.ef7 Rf8+–) 27...Qe7 (27...Bg7 28.e4 Nb6 29.Rc1+–) 28.bc6 (28.Ra7 cb5 29.Qb5 Rb8+–) 28...bc6 29.Ne5 Qh4?? (29...f6 30.Nc6 Qd7+–) 30.Nf7 Kg7 31.Ra7 Qf6 32.Nh6 Kh6 33.Qb7 Qf5 34.Bc1 Rf8 35.e4 (35.e4 Kh5 36.ef5 h6 37.Qb3 Rg8 38.Qf3 Rg4 39.Rh7 Nf4 40.Bf4 ef5 41.Rh6#) 1–0. Fournier,Frederic – GMShan, Live Chess Chess.com, 2012.

5.d4 Nd5

6.a3 b6 7.c4 c5?? (better is 7...Nf6+=) 8.cd5+– cd4 9.Bd4 e5 (9...Bb7 10.Bg7 Kg7 11.Bc4+–) 10.de6! de6 11.Bg7 Qd1 12.Kd1 Kg7 13.Bc4 Bb7 14.Ke2 Na6 15.Nbd2 Nc7 16.Rhd1 b5 17.Bb3 a5 18.Rac1 ab4 19.Rc7 Bf3 20.Nf3 ba3 21.Be6 a2 22.Ra1 Rfb8 23.Ra2 Ra2 24.Ba2 b4 25.Bf7 Kh6 26.Bb3 Ra8 27.Nd4 Ra3 28.Rb7 Rb3 29.Nb3 g5 30.Rb4 g4 31.Rg4 (31.Rg4 Kh5 32.f3 h6 33.Rg7 Kh4 34.Nd4 Kh5 35.f4 Kh4 36.Nf5 Kh5 37.g4) 1–0. Fournier,Frederic (1755) – alexis1, Active, 2007.

6.a3 c6 7.c4 Nc7 8.Nc3 Re8 9.Be2. Fournier,Frederic (1840) – bruxinhow3, Active, 2007.

5.d4 d6

6.a3 Nc6 7.c4 h6 8.Nc3 Kh7 9.Qb3 e5 10.Rc1 ed4 11.Nd4 Nd4 12.ed4 Re8 13.Be2 Ne4 14.Rc2 Bd4 15.0-0 Qf6 16.Ne4 Re4 17.Bd4 Qd4 18.Bf3 Re7 19.c5 Be6 20.Qa4 dc5 21.Bb7 Rd8 22.Rc5 Qb2 23.Qa7 Rd2 24.h3 Bf5 25.Ba6 Qa3 26.Qb7 Rd4 27.Bc4 Be4 28.Qb8 Qb2 29.Rc7 Rc7 30.Qc7 Rc4 31.Qf7 Qg7 32.Qc4 1–0. malamashka (1825) – zase (1660), kurnik, 2012.

6.b5 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 Qa5 11.Be2 Ne4 12.Qd3?? (better is 12.Bb2 Bf5 13.Qa1 Qa1 14.Ba1 Nc3 15.Bc3 Bc2 16.Kd2=+) 12...Qa1–+ 13.Bd1 (13.Nd1 Qa5 14.c3–+) 13...Qc3 14.Qc3 Nc3 15.Kd2 Nd1 (15...Ne4 16.Ke1–+) 16.Rd1 cb5 17.Rb1 Nc6 18.Rb5 Bg4 19.Ne1 Ra8 20.Rb7 Ra1 21.f3 Be6 22.Rc7 Nb4 23.Re7 Bh6 24.f4 Ra2 25.Rb7 Nd5 26.Nd3 Bf5 27.Rb5 Bd3 28.Kd3 Kg7 29.Rd5=+ Kf6 30.Rd6+= Ke7 31.Rc6 Bg7 32.c3?? Rg2=+ 33.Rc7 Kf8 34.c4 Rh2-/+ 35.c5 Bf6 36.c6 Ke8?? 37.Rb7 Kd8 38.Rf7+– Bh4 39.c7 (39.c7 Kc8 40.Rh7+–) 1–0. blaugrana18 – felekkartofelek6, kurnik, 2011.

6.b5 c6 7.a4 cb5 8.ab5 a6 9.Be2 Nbd7 10.0-0 Nb6 11.c4 ab5 12.cb5 Ra1 13.Ba1 Bd7 14.Nc3 Nbd5 15.Nd5 Nd5 16.Qb3 e6 17.Bb2 Qa5 18.Ra1 Qb6 19.h3 Qc7 20.Rc1 Qd8 21.Bc4 b6? 22.Bd5 ed5 23.Qd5 Be6 24.Qc6 d5 25.Ba3 Re8 26.Bd6 Bf8 27.Bc7 Qc8 28.Bb6 Qc6 29.bc6 Bd6 30.Ne5 f6 31.Nd7 Re7 32.Nf6 Kf7 33.Bd8 Kf6 34.Be7 Ke7 35.Ra1 Bc7 36.Ra7 Kd6 37.Ra8 Kc6 38.Rh8 Bf5? 39.Rh7+– g5? 40.Rh6 Kb5 41.g4 Be4 42.Rh5 Bd8 43.Rh8 Bf6 44.Rf8 Be7 45.Rf7 Bd6 46.Kf1 Bd3 47.Ke1 Bg6? 48.Rf6 Bb4 49.Ke2 Be4 50.f3 Bb1 51.Rg6?? Be7 52.Re6 Bb4 53.Re5 Ba2 54.Rg5 Bc4 55.Kf2 Be7 56.Re5 Bf6 57.Rf5 Bg7 58.h4 Bd3 59.Rd5 Kc4 60.Rg5 Bf6 61.Rg6 Bh4–+ 62.Kg2 Be2?? 63.f4 1–0. mihai740609 – dgodfather, kurnik, 2011.

6.b5 c6 7.c4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 e5 11.de5 Ng4 12.h3 Ne5 13.Ne5 Be5 14.Be5 de5 15.Qd8 Rd8 16.Be2 Bf5 17.0-0 Bb1 18.Rb1 Rd2 19.bc6 Nc6 20.Bf3 Na5 21.Rb5 Nc4= 22.Rb7 Nd6 23.Rd7 e4 24.Rd6 Rd6 25.Be4 f5 26.Bf3 Kf7 27.e4 Kf6 28.ef5 gf5 29.g4 f4 30.Kg2 Kg5 31.Be4 Rd4 32.f3? Rd2–+ 33.Kg1 h6 34.Bf5 Kh4 35.Kf1 Kg3 36.h4 Kf3 37.g5 Rd1 0–1. mihai740609 (1610) – train1959 (1700), kurnik, 2011.

6.b5 c6 7.c4 cb5 8.cb5 Nbd7 9.Bd3 e5 10.0-0 e4 11.Nfd2 ed3 12.Qb3 d5 13.Qd3 Ne4 14.Ne4 de4 15.Qe4 Nf6 16.Qc2 b6 17.f3 a6 18.Qb3 ab5 19.Qb5 Ba6 0–1. mihai740609 – jhonnyblue, kurnik, 2012.

6.b5 Re8 7.Bd3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Nbd2 Nb6 12.0-0 Bd7 13.c4 Qa8 14.Bb2 Qa4 15.Qc2 Ra8 16.Ra1 Qc2 17.Bc2 Ra1 18.Ba1 c5 19.dc5 dc5 20.Be5 Ne8 21.Bg7 Kg7 22.Ne5 Be6 23.Bb3 Nd6 24.Nd3 1–0. mihai740609 – tenczyn1, kurnik, 2012.

6.b5 Re8 7.Bd3 Nbd7 8.0-0 e5 9.Nbd2 e4 10.Ne4 Ne4 11.c4 c6 12.Qc2 d5 13.bc6 bc6 14.Ba3 Ba6 15.Rfc1 Rc8 16.Qa4 Bc4 17.Bc4 dc4 18.Rc4 Nb6 19.Qc2 Nc4 20.Qc4 Qd5 21.Qa6 Qb5 22.Qa7 Ra8 23.Qd7 Nf6 24.Qd6 Bf8 25.Qf6 Ra3 26.Ne5 Qd5 27.e4 Qe6 28.Qh4 Ra2 29.Rc1 f6 30.Rc6 Ra1 0–1. mihai740609 – breivik, kurnik, 2012.

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4).

6.Nbd2 Nbd7 7.Be2 e5 8.de5 Ng4 9.c4 Nde5 10.Ne5 Ne5 11.Qb3 Be6 12.Bd4 Nc6 13.Bg7 Kg7 14.Qc3 Qf6 15.Qf6 Kf6 16.a3 a5 17.b5 Ne5 18.Rc1 ½–½. Albrecht – Juergens, 1981.

6.Bd3 c5 7.bc5 dc5 8.c3 Bg4 9.Nbd2 cd4 10.cd4 Nc6 11.0-0 Nb4 12.Be2 Rc8 13.a3 Nbd5 14.Rc1 Qd6 15.h3 Bf5 16.Qb3 b6 17.Nc4 Qb8 18.Nce5 e6 (18...Qd6 19.Ba6 Rc7 20.Rc7 Nc7 21.Bc4+=) 19.Bd3 (better is 19.g4!? Be4 20.g5+/-) 19...Bd3+= 20.Qd3 Ne4?? (better is 20...b5+=) 21.Nd7 Nf2 22.Kf2 Qb7 23.Nf8 Bf8 24.Rc8 Qc8 25.Rc1 Qb7 26.Ne5 Kg7 27.Qc4 Kf6 28.Qc6 Qa6 29.Qc4 Qb7 30.Qc8 Qc8 31.Rc8 Bh6 32.Bc1 Nc3 33.Ra8 Ne4 34.Kg1 Ng3 35.Ra7 Ne2 36.Kf2 Nc1 37.Ra6 Kf5 38.Nd7 Nd3 39.Ke2 (39.Ke2 Nc1 40.Kf3+–) 1–0. Fournier,Frederic – sensenom (1940), Active, 2009.

6.Bd3 Nbd7 7.0-0 c5 8.bc5 dc5 9.dc5 Nc5 10.Qe2 Nd3 11.cd3 Bg4 12.Nbd2 Qd6 13.Rab1 Rad8 14.h3 Bf3 15.Nf3 Qd3 16.Qd3 Rd3 17.Ne5 Rd2 18.Ba3 Nd5 19.Nd7 Rd8 20.Rb7 Ra2 21.Bc5 a5 22.e4 Nc3 23.Be7 Re8 24.Bf6 Ne4 25.Bg7 Kg7 26.f3 Ng3 27.Rfb1 Ree2 28.Kh2 Rg2 0–1. Adjailton (1850) – iguatu2017 (1720), lichess.org, 2020.

6.Bd3 Nbd7 7.0-0 Re8 8.Nbd2 e5 9.de5 de5 10.Ne4 (10.e4!?=) 10...Ne4=+ 11.Be4 c6 (11...Nf6 12.Qd3=+) 12.c4= Qe7 13.Qb3 a5 14.a3 a4 15.Qc3 f5 16.Bb1 e4 17.Qg7 Qg7 18.Bg7 Kg7 19.Nd4 Ne5 20.Ba2 (20.c5 Be6=) 20...Nd3 (20...b6 21.Rad1=) 21.c5= f4 22.ef4 Nf4 23.Rfe1 (23.Bc4 Bf5=) 23...Nd3 (23...Bf5 24.Rad1 Rad8 25.Bc4=) 24.Re3 Rf8?? (better 24...Bf5=) 25.f3+– Rd8 26.Re4 Bf5 (26...Kf6 27.Rd1 Ne5 28.f4+–) 27.Nf5 gf5 28.Re7 Kh6 29.Rb7 Nf4 30.Rc7 Rd2 31.Rc6 Kg5 32.g3 (better 32.b5+–) 32...Nh3+– 33.Kh1 Re8 34.Bc4 (34.Re6 Nf2 35.Kg1 Nh3 36.Kf1 Rf2 37.Ke1 Ra2 A) 38.Re8?! Ra1 39.Kd2 Ra2 (39...Ra3? 40.c6 Ng1 41.f4 Kg4 42.c7 Nf3 43.Kc2 Nd4 44.Kd1 Rd3 45.Ke1 Nc2 46.Kf2 Rf3 47.Kg2+–) 40.Kd3 Ra3 41.Kd4 Ra2= (41...Rf3? 42.c6 Rf1 43.Rg8 Kf6 44.c7 Rd1 45.Ke3+–); B) 38.Ra2 Re6 39.Kf1+–) 34...Re3?? (better 34...Nf2 35.Kg2 Nd1 36.Kg1 Re1 37.Bf1 f4=) 35.f4+– Kg4 (35...Kh5 36.Rd6 Rb2 37.Bf1 Nf2 38.Kg1+–) 36.Bf1 Rf2 (36...Nf2 37.Kg1 Ne4 38.Rh6+–) 37.Rh6 Ng5 (37...Nf4 38.Rh4 Kg5 39.Rf4 Rf4 40.gf4 Kf4+–) 38.Rh4 Kf3 39.fg5 Re4 40.Re4 (40.Rh7 Rg4+–) 40...Ke4 (40...fe4 41.Bg2! Ke3 42.Re1 Kd2 43.Re4+–) 41.Rc1 Rd2 42.c6 Rd8 43.c7 Rc8 44.Ba6 (44.Ba6 Rc7 45.Rc7+–) 1–0. Silva,Janderson Rossi Da (1850) – Carvalho,Isis, 4th Floripa Open (5), 2018.

6.Bd3 Bg4 7.Nbd2 Nbd7 (7...a5 8.b5=) 8.h3+= Bf3 9.Nf3 (9.Qf3 c6+=) 9...Re8 10.e4 e5 11.d5 (11.de5 Nh5+=) 11...c6 (11...Nd5 12.a3-/+) 12.c4 (12.dc6!? bc6 13.0-0=) 12...cd5=+ 13.cd5 Rc8 (13...Nd5!? 14.Qb3 Nf4=+) 14.0-0 (14.Qb3 Nh5+=) 14...Nh5 (14...Nd5 15.ed5 e4 16.Bg7 Kg7 17.Bb5 ef3 18.Qf3=) 15.Qa4 a6 16.b5 (16.Rfc1 Rc1 17.Bc1 f5+=) 16...a5 (16...Nc5 17.Qd1=+) 17.Ba3 (17.Qd1=) 17...Qc7 (17...Nf4 18.Rad1 A) 18...Nd3?! 19.Rd3 f5 A1) 20.Bd6? Nb6 21.Qa5 fe4-+ (21...Qd6?! 22.Qa3 Qa3 23.Ra3-+); A2) 20.Nd2+=; B) 18...f5-/+) 18.Rac1 (18.b6 Nb6 19.Qa5 Nc4 20.Qc7 Rc7+-) 18...Qb6+= 19.Nd2 (19.Rc8 Rc8 20.Rc1 Nc5 21.Bc5 Rc5 22.Rc5 dc5+=) 19...Nc5 (better 19...Nf4!? 20.Bc4 Qd4 21.Qa5 Nb6=) 20.Bc5+/- Rc5 21.Rc5 Qc5 22.Qc2 (better 22.Nb3!? Qc3 23.b6+/-) 22...Qc2= 23.Bc2 Rc8 24.Bb3 f5 (24...Rc3 25.b6=) 25.f3 (25.Nc4 a4 26.Nd6 Rd8 27.Nb7 Rb8 28.Ba4 Rb7+/-) 25...Nf4 (25...Rc3!?=) 26.Nc4+= Bf8 (26...a4 27.Nd6 Rd8 28.Nb7+=) 27.Na5+/- b6 28.Nc6 Nd3 (28...fe4 29.fe4 Ne2 30.Kh2+/-) 29.Rd1 (better 29.ef5 gf5 30.Bc2+-) 29...Kf7?? (better 29...fe4 30.fe4 Nc5+/-) 30.Rd3+- fe4 (30...Bg7 31.Bc4 h5 32.ef5 gf5 33.Ra3+-) 31.fe4 Kg7 32.Rf3 1-0. sezwho (2090) - rcedron (2030), Rated Bullet game, lichess.org, 2014.

6.h3 c6 7.Nbd2 a5 8.a3 Nbd7 9.Nc4 b6 10.Be2 Bb7 11.0-0 Ne4 12.ba5 b5 13.Ncd2 Nd2 14.Qd2 Nc5 15.Rab1 Ne4= 16.Qd3 d5 17.Nd2 Nd2 18.Qd2 Qa5 19.Bc3 Qc7 20.Bb4 Rfe8 21.f4 f6 22.Qc3 Qd8 23.Qd2 e5 24.Bc5 Bc8 25.g4 ef4 26.ef4 Bf8 27.Bf8 Kf8 28.Rfe1 Qd6 29.Qb4 Qb4 30.ab4 Re4 31.c3 Ra3 32.Bf1 Re1 33.Re1 Rc3 34.Ra1 Ke7 35.Ra8 Be6 36.Rh8 Rf3 37.Rh7 Bf7 38.f5 gf5 39.Be2-/+ Rf4 40.g5 Ke8 41.Rh8-/+ Ke7 42.Rh7 Kf8 43.gf6-/+ Ke8 44.Rh8 Kd7 45.Rf8 Ke6 46.Rc8 Kf6 47.Rc6=+ Kg5 48.Rc5 Rd4 49.Rb5 Rd2 50.Kf2?? Bh5–+ 0–1. Bocchicchio – Nurkic, 1993.

5.d4 Ne4

6.Bd3 d5 7.0-0 c6 8.c4 e6 9.Nc3 f5 10.Nd2 Qg5 11.f3 Nf6 12.f4 Qh4 13.Nf3 Qg4 14.Ne5 Qh4 15.g3 Qh3 16.Qf3 Nbd7 17.cd5 Ne5 18.de5 Ng4 19.Qg2 Qg2 20.Kg2 cd5 21.Rfe1 Bd7 22.h3 Nh6 23.Rec1 Bc6 24.b5 d4 25.Kf2 dc3 26.Rc3 Bd5 27.Rc5 Rfc8 28.Rac1 Rc5 29.Rc5 b6 30.Rc7 Nf7 31.a4 g5 32.Bc3 gf4 33.ef4 h5 34.Bb4 a5 35.ba6 Nd8 36.Be7 Nc6 37.Bb5 Nd4 38.Bf1 Bb3 39.Rd7 Nc2 40.a7 Ba4 41.Rc7 Nd4 42.Bg2 1–0. mihai740609 – sp2012, kurnik, 2012.

6.Bd3 d5 7.0-0 Nc6 8.b5 Nb4? (better is 8...Na5=) 9.Be2+– Bd7 (better is 9...Bf5 10.Ne1 c5+–) 10.a3 Nc2 11.Qc2 c6 12.a4 f6 13.Nc3 Nc3 14.Bc3 cb5 15.Bb5 Bb5 16.ab5 Qb6 17.Qb3 e6 18.Ba5 Qd6 19.Bb4 Qc7 20.Bf8 Bf8 21.Rfc1 Qb6 22.g3 a6 23.Rcb1 a5 24.Qc3 Bb4 25.Qd3 Rc8 26.Rc1 Rd8 27.Rc2 Qd6 28.Rac1 Rd7 29.Rc8 Kg7 30.Qc2 Kh6 31.Rc7 b6 32.Rd7 Qd7 33.Qc6 Qe7 34.Qb6 a4 35.Qc6 a3 36.b6 a2 37.Qa4 Ba3 38.b7! Bc1 39.b8Q Qa3 40.Qa3 Ba3+– 41.Qb3 a1Q= 42.Kg2 Qb2 43.Qb2 Bb2 44.Nd2 Bc3 45.Nb3 Kg7 46.f4 Kf7 47.Kf3 Ke7 48.Nc5 Kd6 49.Nb7 Kc6 50.Nd8 Kd7 51.Nb7? Bb4–+ 52.e4 Kc7 53.Nc5 Bc5 54.dc5 Kc6 55.ed5 ed5 56.Ke3 Kc5 57.g4 d4 58.Kd3 Kd5 59.h4 h6 60.h5 g5 61.f5 Ke5 62.Ke2 Ke4 63.Kd2 Kf4 64.Kd3 Kg4 65.Kd4 Kf5 66.Ke3 Kg4 67.Ke4 f5 68.Ke3 Kh5 69.Kf3 Kg6 70.Kg3 h5 71.Kh3 h4 72.Kg2 g4 73.Kh2 f4 74.Kg2 f3 75.Kf2 Kg5 76.Kg1 Kf4 77.Kf2 g3 78.Kg1 h3 79.Kh1 Ke3 80.Kg1 Ke2 81.Kh1 g2 82.Kh2 f2 83.Kh3 (83.Kg3 g1Q 84.Kf4 f1Q 85.Ke4 Qf6 86.Kd5 Qgd4) ½–½. mihai740609 (1610) – ooooooooooooi, kurnik, 2011.

6.Bd3 d5 7.0-0 Qd7 8.c4 c6 9.Qc2 Qf5 10.Nc3 Qg4 11.Be4 de4 12.Qe4 Qe4 13.Ne4 f5 14.Nc5 b6 15.Nd3 Bb7 16.Nde5 Rd8 17.Rfd1 Nd7 18.Nd7 Rd7 19.Ne5 Be5 20.de5 Rad8 21.Rd4 c5 22.Rd7 Rd7 23.Kf1 Rd2 24.Bc3 Rc2 25.Be1 Be4 26.bc5 Bd3 27.Kg1 bc5 28.f3 Bc4 29.a4 Bd3 30.a5 a6 31.Ra3 c4 32.Bc3 g5 33.Bd4 Kf7 34.Ra4 Rc1 35.Kf2 Rb1 36.Ra1 Rb3 37.h3 Ke6 38.Ra2 c3 39.Ra1 Kd5 40.Ke1 f4 41.Rc1 Kc4 42.Bb6 Rb2 43.ef4 Rg2 44.fg5 Rg5 45.Kf2 Re5 46.Bc7 Re2 47.Kg3 c2 48.Bf4 Kb4 49.Bc7 Rd2 50.Bf4 Rd1 51.Kg4 Ka5 52.Kg5 Kb5 53.Kh6 a5 54.Kg7 a4 55.Kf7 a3 56.Ke7 a2 57.h4 Rc1 58.Bc1 a1Q 59.Bh6 Qe5 60.Kf7 Qf5 61.Kg7 Qg6 62.Kh8 Qh6 63.h5 c1Q 64.f4 Qc8# 0–1. mihai740609 – kanje84, kurnik, 2012.

5.d4 e6

6.Bd3 d5 7.0-0 Nc6 8.a3 Qd7 9.Nbd2 Re8 10.Re1 e5 11.de5 Ne5?? (better is 11...Ng4+=) 12.Ne5 Re5 (12...Qe7+–) 13.Be5 Qg4 14.Qg4 Ng4 15.Bg7 Kg7 16.h3 Nf6 17.Nf3 Be6 18.Rac1 Re8 19.c4 c6 20.cd5 Bd5 21.Nd4 Ne4 22.Be4 Re4 23.f3 Re5 24.e4 Bb3 25.Nb3 1–0. Fournier,Frederic – juliusches, Active, 2008.

6.Be2 d5 7.b5 Qe7 8.0-0 Qb4 9.Bc3 Qe7 10.Bb2 c6 11.a4 Bd7 12.Ba3 Qe8 13.Bf8 Qf8 14.c4 dc4 15.Bc4 Qb4 16.Qe2 Ne4 17.Nbd2 Nc3 18.Qd3 c5 19.dc5 Qc5 20.Rac1 Na4 21.Be6 Qb5 22.Qb5 Bb5 23.Bb3 Bf1 24.Kf1 Nc3 25.Nc4 Nc6 26.Nd6 Rf8 27.Ng5 Nd8 28.f3 h6 29.Nge4 Ne4 30.Ne4 b6 31.Rc7 a5 32.Nd6 Be5 33.Rd7 Kg7 34.f4 Bc3 35.Rc7 Bd2 36.Ke2 Bb4 37.g3 Bd6 38.Ra7 Bc5 39.e4 Nc6 40.Rc7 Nd4 41.Kd3 Nb3 42.Kc4 Nd2 43.Kd5 Rd8 44.Kc6 Ne4 45.Rb7 Rd6 46.Kc7 a4 47.Ra7 b5 48.Ra5 Rb6 49.g4 Be3 50.f5 gf5 51.gf5 1–0. mihai740609 – isniqi, kurnik, 2012.

5.Be2 a5

6.0-0 ab4 7.c3 bc3 8.Bc3 d5 9.d4 c6 10.Nbd2 Qc7 11.Bb4 Na6 12.Bc3 b6 13.Ne5 Bb7 (13...c5 14.Bb5-/+) 14.f4 (14.Qb3 Nb8-/+) 14...Rfd8 15.Ng4 (15.Qb3 c5-/+) 15...c5 16.Nf6 Bf6 17.Nf3 c4 18.Ne5 e6 19.Bf3 Be7 20.g4?? f6–+ 0–1. tanto – moonlightconcert, net–chess.com, 2001.

6.0-0 ab4 7.d4 d6 8.a3 ba3 (8...c5 9.dc5 dc5 10.Nbd2 ba3 11.Ra3 Ra3 12.Ba3-/+) 9.c4 Nc6 (9...ab2 10.Ra8 Nbd7 11.Ra2+=) 10.Na3 e6 (10...Bf5 11.Nh4 Bd7 12.Nb5-/+) 11.Qc2 Bd7 (11...e5 12.Nb5 Ra1 13.Ra1=+) 12.Nb5= Ra1 13.Ra1 Ng4 (13...Re8 14.c5 Nb4 15.Qc4 dc5 16.Qc5=) 14.h3+= Nh6 15.Qb3 e5 (15...Nf5 16.Bc3=) 16.de5 (16.d5 Ne7+=) 16...de5 17.Rd1 Qc8 18.Nc3 b6 19.c5 (better 19.e4+=) 19...Bh3?? (better 19...bc5 20.Ng5 Nf5=) 20.gh3+- Qh3 21.Ng5 Qh4 (21...Qf5 22.Nce4 Bf6 23.Nf6 Qf6 24.Ne4+-) 22.Nce4 Nf5? (22...Ng4 23.Nf3 Qh5 24.cb6 cb6 25.Kg2+-) 23.cb6 cb6 (23...h6 24.Ba3 Nfe7 25.Nf7 Rf7 26.bc7 Qe4 27.Rd8 Bf8+-) 24.Ba3 h6 (24...Bh6 25.Nf6 Kh8 26.Nf7 Kg7 27.Bf8 Kf8 28.Nh6 Qf6 29.Qg8 Ke7 30.Qh7 Ke8 31.Nf5 Qf5 32.Rd6+-) 25.Bf8 Bf8 (25...hg5 26.Rd7 Nd8 27.Bg7 Qe4+-) 26.Qf7 (26.Qf7 Kh8 27.Qf8) 1-0. Adlai – Sentaures, internet, 2021.

6.a3 ab4 7.ab4 Ra1 8.Ba1 d5 9.d4 Bg4 10.0-0 Bf3 11.Bf3 c6 12.Nd2 Nbd7 (12...Qb6 13.c3=) 13.c4+= Nb6 14.c5 Nbd7 15.Bc3 Re8 16.Re1 e5 17.Qb3 e4 18.Be2 White prepares b5 18...Qe7 (18...b5 19.cb6 Qb6 20.Ra1+=) 19.h3 (19.b5 Qf8+/-) 19...h5 (19...b6!?+=) 20.b5+/- Kh7 21.bc6 (21.Ra1!?+/-) 21...bc6+= 22.Qb7 Nb8 23.Qe7 Re7 24.Rb1 Re8 25.Rb7 Kg8 26.Ba5 Rc8 27.Nf1 (27.Bc7 Nbd7+/-) 27...Ne8 28.g4 h4? (better 28...hg4 29.hg4 Bh6+/-) 29.g5+- f5 (29...Na6 30.Rb6 Nac7 31.Rc6 Ra8 32.Rc7 Ra5+-) 30.gf6! Nf6 (30...Nf6 31.Nd2 Combination; 30...Bf6 31.Bg4 Combination) 31.Bg4 (better 31.Bc7!? Nbd7 32.Ra7+/-) 31...Ng4= 32.hg4 Bf6 33.Nh2 Bd8?? (better 33...g5=) 34.Bd8+- Rd8 35.g5 Nd7 36.Ng4 Kf8 37.Rc7 Nb8 38.Nf6 (38.Ne5 Kg8+-) 38...Na6 39.Nh7 (39.Rc6 Nb8 40.Rb6 Ke7+-) 39...Ke8 (better 39...Kg8 40.Rc6 Nb4+-) 40.Nf6 Kf8 41.Nh7 (41.Rc6 Nb8 42.Rb6 Ke7+-) 41...Kg8?? (41...Ke8 42.Rc6 Nb4 43.Rg6 Kf7+-) 42.Nf6?? (better 42.Rc6 Nb4 43.Rc7+-) 42…Kf8= ½-½. Gehaktbalmetjus (2085) - sehzade_mustafa (2600), Rated Bullet game, lichess.org, 2019.

6.a3 b6 7.0-0 Nc6 (7...ab4 8.ab4 Ra1 9.Ba1=) 8.b5+= Nb8 9.c4 c5 10.bc6 dc6 11.Nc3 Nbd7 (11...Bf5 12.d4+=) 12.d4 Bb7 13.h3 (13.Qb3 c5+=) 13...c5 14.d5 e6 15.de6 fe6 16.Qd6 Re8 17.Rad1 Ne4 (17...Qe7 18.Nb5 Rad8 19.Ne5+/-) 18.Ne4 (18.Qd7 Qd7 19.Rd7 Bc3+/-) 18...Bb2 19.Nfg5 The isolani on e6 becomes a target (19.Qd2 Be4 20.Qb2 Rf8+=) 19...Nf8 (better is 19...Be4!? 20.Ne4 Nf6+=) 20.Qg3+/- Qb8 21.Nd6 Re7 (worse is 21...Ba3 22.Qe5 (22.Ne8?! Qe8 23.Qc7 Ba6+–) 22...Re7 23.Qf6+–) 22.Rb1 Bf6 (better is 22...Ba3 23.Rb6 Ra7+–) 23.Rb6 Ra6 (23...Rd7 24.Nge4 (24.Rb7?! Rb7 25.Nge4 Be7 26.Nb7 Qb7+–) 24...Bd8 25.Qe5 (25.Nb7?! Qg3 26.fg3 Bb6 27.Nf6 Kh8 28.Nd7 Nd7+–) 25...Rd6 26.Rd6 Be4 27.Qe4 Qd6 28.Qa8+–) 24.Nge4 (24.Rb7?! Qd6 25.Qd6 Rd6 26.Re7 Be7+/-) 24...Rb6 25.Nf6 Kg7 (25...Kh8 26.Nf7!! Rf7 27.Qb8 Rf6+–) 26.Qe5 Rd6 27.Nd7 Kf7 28.Nb8 Rd2 29.Bg4 Re8 (29...Rd8 30.Rd1 Rde8 31.Qf4 Kg8 32.Qd6+–) 30.Rb1 (30.Rb1 Re7 31.Qc5+–) 1–0. Marcus – cgo69, internet, 2018.

6.ba5 Ra5 7.0-0 d5=.

6.b5 a4 7.0-0 c6 8.a3 d5 9.c4 Bg4 10.Nc3 Bf3 11.gf3 Nbd7 12.Na4 dc4 13.Bc4 Qa5 14.Nc3 Ne5 15.Be2 cb5 16.Bb5 (16.Rb1 Rfd8+=) 16...Rfd8 17.d4 Nc6 (17...Nd5 18.Nd5 (worse 18.de5 Nc3 19.Bc3 Qc3=+) 18...Qb5 19.Nb4= (worse 19.Ne7 Kf8-/+)) 18.Kh1 (better 18.Qb3!?+/-) 18...e5= 19.d5 Nd5 20.Nd5?? (better 20.Qb3 Nc3 21.Bc3=) 20...Qb5-+ 21.Nc7 Qb2 (21...Rd1?! 22.Nb5 Rd3 23.Bc3=+) 22.Qb1 Qb1 23.Rab1 (23.Rfb1?? Rac8 24.Nb5 e4-+) 23...Ra3 24.Rb7 e4! 25.fe4 Ne5 (25...Ra4!? 26.Nd5 Re4 27.Rd1-+) 26.Nd5 Ng4 (26...Ra4 27.f3-+) 27.h3 Nf6 28.Nf6 (28.Rd1 Kf8 29.Rd4 Ne8-+) 28...Bf6 29.Rc1 (29.Kg2 Rd2 30.Kg3 Ra4 31.Rb8 Kg7-+) 29...Ra2 30.Rcc7 (30.Kg2-+) 30...Rf2 31.Kg1 Bh4 32.Rb1 (32.Rd7 Rd7 33.Rd7 Rf3-+) 32...Rdd2 33.Rc8 (33.e5 Rg2 34.Kh1 Rh2 35.Kg1 Rdg2 36.Kf1 Rg5 37.Rb8 Kg7 38.Rf7 Kf7 39.Rb7 Ke6 40.Rb6 Kd5 41.Rd6 Ke5 42.Rd5 Kd5 43.e4 Kd4 44.e5 Rf2 45.Ke1 Rg1) 33...Kg7 34.e5 (34.Rc5-+) 34...Rg2 35.Kf1 (35.Kh1 Rh2 36.Kg1 Rdg2 37.Kf1 Rg5 38.Rg8 Kg8 39.Rb8 Kg7 40.Rg8 Kg8 41.e6 Rf2 42.Ke1 Rg1) 35...Rdf2 36.Ke1 Rb2 (36...Rg1) 37.Kf1 Rgf2 38.Ke1 (38.Kg1 Rb1 39.Rc1 Rc1) 38...Rb1 39.Rc1 Rc1 0-1. Lance5500 (2550) - mux77 (2380), lichess.org, 2016.

6.b5 a4 7.0-0 d5 8.Na3 c6 9.Rb1 Nbd7 10.c4 cb5 11.cb5 Nb6 12.Be5 Ne4 13.Bg7 Kg7 14.Qc2 Qd6 15.Qb2 f6 16.d3 Nc5 17.Qb4 Bf5 18.Rfd1 Rfc8 19.h3 Rc7 20.Rbc1 Rac8 21.g4 Bd7 22.Qb2 h5 23.Nh2 hg4 24.hg4 Rh8 25.Nf1 Rh4 26.Qb4 Rc8 27.Ng3 Ne4 28.Qd6 Nd6 29.Rc8 Nbc8 30.Rb1 Nb6 31.f3 Rh8 32.Rc1 Rc8 (32...Bb5? 33.Nb5 Nb5 34.Rb1+–) 33.Rc8 Nbc8 34.d4 Nb6 35.Kf2 e5 36.Ke1 ed4 37.ed4 Nbc8 38.Kd2 Na7 39.Kc3 Nab5 40.Nb5 Nb5 41.Bb5 Bb5 42.Kb4 Bc4 43.Ka4 Ba2 44.Kb5 Bb3 45.f4 Kh6 46.Kc5 Bc4 47.Kb6 Ba6 48.Nh1 Be2 49.Nf2 f5 50.gf5 gf5 51.Kb7 Kh5 52.Kc6 Bf3 53.Kd6 Kh4 54.Ke5 Kg3 55.Nd3 Be4 56.Nb4 Kf3 57.Nc6 Ke2 58.Ne7 Ke3 ½–½. Birnboim,Nathan (2370) – Shvayger,Yuliya (2270), Acre ISR, Men Ch, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 a5 6.b5)

6.b5 a4 7.a3 b6 8.c4 c5 9.Nc3 Bb7 10.Na4 d5 11.0-0 d4 (11...dc4 12.Ne5 Bg2 13.Kg2 Ra4 14.Qa4 Qd2+-) 12.ed4+- cd4 13.Nd4 Ne4 14.d3 (14.Nf3!? Bb2 15.Nb2 Qd6+-) 14...Nc5 (14...Nf2 15.Rf2 (worse 15.Kf2 Bd4 16.Kg3 Qd6 17.Kh3 Bb2 18.Nb2 g5=+) 15...Bd4 16.Bd4 Qd4 17.Ra2+=) 15.Nc5+/- bc5 16.Ne6 (better 16.Nc6!? Nc6 17.Bg7 Kg7 18.bc6 Bc6 19.Bf3 Bf3 20.Qf3+/- (20.gf3?! e6=)) 16...fe6= 17.Bg7 Kg7 18.a4 Nd7 19.Qd2 Qa5 20.Qb2 Nf6 (20...Rf6 21.d4=) 21.d4 (21.Qe5 Rfc8+=) 21...cd4 (21...Rac8 22.Rfd1=) 22.Qd4+= Rfd8 23.Qe5 Kf7 24.h4 (better 24.c5+/-) 24...Qc7?? (24...Be4 25.h5=) 25.Qe3 (better 25.Qc7 Be4 26.a5+-) 25...Qd6? (better 25...e5!?=) 26.c5 (26.a5+/-) 26...Qd4? (26...Qc7!?+/-) 27.c6 (27.Qd4 Rd4 28.c6 Bc8+-) 27...Bc8 (27...Qh4 28.g3 Qb4 29.Rfb1+-) 28.b6 (better 28.Qd4 Rd4 29.a5+-) 28...Ba6?? (better 28...Qh4 29.a5 Nd5 30.Qf3 Kg8+-) 29.Ba6 (better 29.Qd4 Rd4 30.Ba6 Nd5+-) 29...Ra6 (29...Qd6 30.Bb7 Rab8 31.a5+-) 30.c7 (better 30.Qd4!? Rd4 31.c7 Rc4+-) 30...Qe3 (30...Qd6 31.cd8R Qd8+-) 31.fe3 Rc8 (31...Raa8 32.cd8R Rd8 33.a5+-) 32.b7 (32.b7 Rc7 33.b8Q+-) 1-0. Arifars17 (2545) - deni165 (2315), Uji Nyali Camat Arena, lichess.org, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 a5 6.b5)

6.b5 a4 7.c4 c6 8.0-0 d6 9.a3 cb5 10.cb5 Nbd7 11.d4 Nb6 12.Bd3 Bf5 13.Bf5 gf5 14.Nc3 Qd7 15.Qd3 Rfc8 16.Nd2 d5 17.Rfc1 e6 18.Nd1 Ne4 19.Ne4 fe4 20.Qe2 Nc4 21.Nc3 f5 22.Rd1 Qf7 23.Na2 Rc7 24.Nc3 e5 Black prepares the advance f4 25.Rac1 ed4 (25...Nb2?! 26.Qb2 ed4 27.ed4=+) 26.ed4 f4 27.Qc2 f3 28.gf3 Bh6 (28...Bd4 29.Nd5 Qd5 30.Bd4 (30.Rd4? Qg5 31.Kh1 Ne3 32.fe3 Rc2 33.Rc2 ef3-+) 30...Qb5 31.fe4+/-) 29.fe4-/+ Qf3 30.Nd5 Rg7 (30...Bc1 31.Rc1 Kh8-+) 31.Kf1=+ Rf8 (worse 31...Nb2 32.Nf6 Qf6 33.Qb2-+) 32.Ne7 (32.Nf6 Rf6 33.Qc4 Rgf7 34.Qc8 Rf8 35.Qc4 Kh8 36.Qc2 Bc1 37.Rc1 Qh1 38.Ke2 Rf2 39.Kd3 Qf3 40.Kc4 Rc8 41.Kb4 Rfc2 42.Rc2 Qb3 43.Ka5 Qc2 44.d5 Qb2 45.Kb6 Qe5 46.Ka7 Qb8 47.Kb6 Qc7 48.Ka7 b6 49.Ka6 Ra8) 32...Kh8 33.Ng6 Rg6 34.d5 Bg7 35.Bg7 (35.d6 Qh3 36.Ke2 Rf2 37.Kf2 Qe3 38.Kf1 Rg1) 35...Rg7 36.d6 (36.h4 Qh3 37.Ke2 Rf2 38.Kf2 Qe3 39.Kf1 Rg1) 36...Qh3 37.Ke2 Rf2!! 38.Kf2 (38.Kf2 Qe3 Mate attack) 38…Qe3 (38...Qe3 39.Kf1 Rg1) 0-1. DEFFM – GuestHGWC, freechess.org, 2021.

6.b5 d5 7.0-0 a4 8.d4 Bd7 9.c4 dc4 10.Bc4 c6 11.Nc3 cb5 12.a3 bc4 13.Qc2 e6 14.e4 Nc6 15.e5 Nd5 16.Nb5 g5 17.Qd2 g4 18.Ne1 Ne5 19.de5 Bb5 20.Qd4 c3 21.Bc1 Bf1 22.Kf1 Qc7 23.Qg4 Qe5 24.Nf3 f5 25.Qh5 Qf6 26.Bg5 Qg6 27.Qh4 c2 28.Rc1 f4 29.Qg4 Bb2 30.Nh4 Qd3 31.Kg1 Ne3 32.Qe6 Kh8 33.fe3 Bc1 34.Bf6 Rf6 35.Qf6 Kg8 36.Qe6 Kf8 37.Qf6 Ke8 38.Qh8 Kd7 39.Qh7 Kc6 40.Qd3 Kc5 41.Qc3 1–0. Orang4Utan (1740) – systemsebas (1765), lichess.org, 2017.

6.b5 d5 7.0-0 c5 8.c4 Nbd7 9.cd5+= Nd5 (9...Nb6 10.Qc2+= Qd5 11.d4 cd4 12.Bd4+=; 9...a4 10.Qc2 (10.Qc1 Nd5 11.Bg7 Kg7 12.Qc4+=) 10...Nd5 11.Bg7 Kg7 12.Nc3+=) 10.Bg7 Kg7 11.Qc2 (11.d4 b6 12.Bc4+=) 11...b6 (11...e5 12.Nc3+=) 12.Rd1 (12.d4 Bb7+=) 12...e5 (12...Bb7 13.Qb2 Kg8 14.d4+=) 13.d3 (13.Qc4 Bb7=) 13...Qf6 14.Nbd2 Bb7 15.a3 Rad8 (15...Rfd8 16.Rac1=) 16.Rac1 Rfe8 17.Nc4 (17.Ne4 Qe6=) 17...Qe7 (17...Nc7 18.a4=) 18.g3 (18.Nfd2 f5=) 18...Nc7 19.Qb2 Kg8 20.Nfd2 f5 21.Bf3 ½–½. Haznedaroglu,Kivanc (1990) – Zylla,Johannes (2225), corr ICCF WSTT/3/06/2, 2006.

6.b5 d5 7.c4 Nbd7 8.0-0 dc4 (8...Nb6 9.cd5 Nbd5 10.Na3=) 9.Na3= c3 10.Bc3 Nc5 11.Bf6 (11.d3 Bd7=) 11...Bf6 (11...ef6 12.d4 Ne4 13.Qc2=) 12.d4 Ne6 13.Nc4 Ng7 14.Qd2 a4 (14...Nf5 15.Bd3+=) 15.Qb4 (15.Qc2 Bd7 16.Nce5 Bf5+=) 15...e6 (15...Be6 16.Rfd1+=) 16.Rac1+= Qe7 17.Qb1 (17.Qc3 Ne8+/-) 17...Rd8 (17...Nf5 18.Nce5+/-) 18.Rc2 Ne8 (18...b6 19.Nce5 Bb7 20.Rfc1+/-) 19.Rfc1 Bg7 (19...b6 20.Nfe5 Bb7 21.Bf3 Bf3 22.Nf3+/- (22.gf3?! Be5 23.Ne5 Qg5 24.Kh1 f6=)) 20.Rb2 (20.g3 b6+/-) 20...Bf8 (20...Nf6 21.g3+=) 21.h4 Qf6 (21...Nf6 22.Rd2+=) 22.Qc2 Rd5 23.Rbb1 Rh5 (23...Qe7 24.Nce5+/-) 24.g3 (24.Nfe5 Rh4 25.g3 Rh6+–) 24...Rd5+/- 25.Nce5 h6 (25...Qe7 26.Kg2+/-) 26.Bd3 Rd8 (26...Be7 27.Kg2+–) 27.Kg2 (27.h5 gh5 28.Kg2 Bd6+–) 27...Bd6 28.Be4 (28.h5 g5+–) 28...Qg7 (28...h5 29.Nc4+/-) 29.b6+– c5 30.Nc6 bc6 31.Bc6 Bd7?? (31...Ra5 32.Qd2 Ra6 33.dc5 Be7+–) 32.Ba8+– cd4 33.Bc6 Bc6 34.Qc6 de3 35.fe3 a3 (35...g5 36.hg5 hg5 37.g4+–) 36.Rd1 (better is 36.b7!? Qf6 37.Qa4 Qe7+–) 36...Qf8 37.Rd3 (37.b7 Rb8+–) 37...Rb8 (37...Nf6 38.b7 Kh7 39.Rd6 Rd6 40.Qc7+–) 38.Rbd1 Be7 (38...Bc5 39.Rd8 Rb6 40.Qc8+–) 39.Ne5 Nf6 40.Nd7 (40.b7 Kg7+–) 40...Nd7 (40...Rc8 41.Qa4 Ra8 42.Qb5 Nd7 43.Rd7+–) 41.Rd7 (41.Qd7?! Rb6 42.Kf3 Rb8+/-) 41...Bf6 (41...Bc5 42.b7 Ba7 43.R1d6+–) 42.Qc7 (42.Qc7 Rc8 43.Rf7+–) 1–0. Majzik,Levente (2280) – Szabo,Zsolt Jozsef (2430), Budapest Nyar op, 1998. (=1.Nf3 Nf6 2.e3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Be2 d5)

6.c3 ab4 7.cb4 b5 8.Bb5 c6 9.Ba4 Qb6 10.a3 c5 11.Qb3 cb4 12.Qb4 Qb4 13.ab4 Na6 14.b5 Nb4 15.0-0 Nd3 16.Bf6 Bf6 17.Ra3 Nb2 18.Bb3 Ra3 19.Na3 Bb7 20.Nc4 Ra8 21.Nb2 Bb2 22.d4 Ra3 23.Bc4 d5 24.Be2 Bc3 25.Rb1 Ba5 26.Ne5 Bc7 27.Nc6 e6 28.g3 Ra2 29.Bd3 Rd2 30.Rb3 Kf8 31.Nb4 Ke8 32.Na6 Bb6 33.Nc5 Bc8 34.Kf1 Kd8 35.Ke1 Ra2 36.Bb1 Ra5 37.h4 Kc7 38.f4 Kd6 39.Ke2 Bc5 40.dc5 Kc5 41.Rc3 Kb5 42.Rc8 Ra2 43.Rc2 Ra1 44.Ba2 Rh1 45.Kf3 Rf1 46.Kg2 Re1 47.Kf2 Rd1 48.Bb3 Rb1 49.Ba2 Rd1 50.Rb2 Kc6 51.Bb3 Rh1 52.Ba4 Kc7 53.Kg2 Re1 54.Rb3 Re2 55.Kf3 Ra2 56.Rc3 Kd8 57.Bb3 Ra3 58.e4 de4 59.Ke4 Ra1 60.Rd3 Ke7 61.Kd4 Rg1 62.Bc4 Kd6 63.Ke3 Ke7 64.Bb5 Rg3 65.Ke4 Rd3 66.Kd3 Kf6 0–1. Phomopsis – sveta63 (1635), lichess.org, 2018.

6.b5 b6

7.0-0 c5 8.bc6 dc6 9.c4 Bb7 10.d3 Nbd7 11.Nbd2 Nc5 12.Qc2 Qc7 13.Rab1 Rad8 14.Be5 Qc8 15.Rb6 Nd5 16.Bg7 Kg7 17.cd5 cd5 18.Rc1 Qc7 19.Qb2 f6 20.d4 Na4 21.Rc7 Nb2 22.Rbb7 Rb8 23.Re7 Kh6 24.h3 Rb7 25.Rb7 Na4 26.Ra7 Nc3 27.Bd3 Na2 28.Ra5 Nb4 29.Be2 Rd8 30.Nb3 Nc6 31.Ra6 Ne7 32.Rf6 Nf5 33.Bd3 Rb8 34.Nc5 Kg7 35.Ra6 Rb2 36.Bf5 gf5 37.Rd6 1–0. mila77 (1775) – emirik (1765), kurnik, 2012.

7.0-0 d6 8.c4 e5 9.d4 ed4 10.Nd4 Bb7 11.Nd2 Nbd7 12.Qc2 Re8 13.Bf3 Bf3 14.N2f3 Nc5 15.Nc6 Qd7 16.Rad1 Nfe4 17.Bg7 Kg7 18.Rd5 f5 19.Rfd1 Qf7 20.h3 Qf6 21.Nd2 Nd2 22.R1d2 Ne4 23.Rd1 Nc3 24.R1d2 Nd5 25.Rd5 Kg8 26.g3 Re4 27.Kg2 Rae8 28.h4 h6 29.Rd1 g5 30.hg5 hg5 31.Nd4 f4 32.gf4? gf4 33.Rg1 Kf7 34.Rh1 fe3 35.fe3 Rg8 36.Kh2 Qh4# 0–1. ejdrzej (1675) – grajaro (1640), kurnik, 2012.

7.0-0 d6 8.d3 e5 9.Nbd2 Be6 10.c4 h6 11.Qc2 Nbd7 12.a4 Nh7 13.Nb3 f5 14.d4 e4 15.Ne1 Bf7 16.g3 Ng5 17.Ng2 Kh7 18.h4 Ne6 19.Rad1 g5 20.d5 Nec5 21.Nc5 Nc5 22.Bg7 Kg7 23.hg5 hg5 24.f4 Bg6 25.Kf2 Rh8 26.Rh1 Qf6 27.fg5 Qg5 28.Nf4 Qf6 29.Ne6 Ne6-/+ 30.de6 Qe6 31.Qc3 Qf6 32.Qf6 Kf6 33.g4 fg4 34.Bg4 Bf7 35.Be2 Rag8 36.Rh8 Rh8 37.Rg1 Rh2 38.Ke1 Be6 39.Rf1 Ke5 40.Rf8 d5 41.cd5 Bd5 42.Rc8 Kd6 43.Rd8 Kc5 44.Rf8 Kb4 45.Rc8 Rh7 46.Rd8-/+ Bb3 47.Rd4 Kc3 48.Re4 Rh2 49.Rf4 Bc2 50.Rc4 Kb2 51.Rc7 Rh1 52.Kd2+= Ba4 53.Rc6 Rh2 54.Rb6 Bb3 55.Rc6 a4 56.b6 a3?? 57.b7+– a2 58.Ra6 Rh8-/+ 59.Ra8 a1Q 60.Ra1 Ka1 61.Bf3 Rb8?? 62.Kc3+= Be6 63.Kd4 Kb1 64.Kc5 Kc2 65.Bc6 Kd2 66.e4. ejdrzej (1690) – lizard1 (1825), kurnik, 2012.

7.0-0 d6 8.d4 Nbd7 9.c4 Re8 10.a4 e5 11.d5 Nc5 12.Nbd2 Bg4 13.h3 Bf3 14.Nf3 Nfd7 15.e4 h6 (better is 15...Ne4!? 16.Qc2 Nec5+=) 16.Qc2+= Rf8 17.Nd2 Qe7 18.Rae1 f5 19.ef5 gf5 20.f4 e4 21.Bg7 Qg7 22.Kh2 Kh8 23.Qa2 Rg8 24.Rg1 Qg3-/+ 25.Kh1 Rg7 26.Nf1?? Qf4 27.Qa1 Rag8 28.Bh5? Ne5 29.Nh2 Ncd3 30.Ref1 Nf2 31.Rf2 Qf2 32.Nf1 Rg2 33.Ne3 Rg1 (33...Rg1 34.Qg1 Rg1; 33...Rh2) 0–1. elsh1403 – konik60 (1775), kurnik, 2011.

7.0-0 d6 8.d4 Re8 9.c4 Nbd7 10.Nbd2 e5 11.de5 Ne5 12.Qc2 Bf5 13.e4 Bg4 (13...Ne4 14.Ne4 Be4 15.Qe4 Nf3 16.Qf3 Bb2 17.Rad1+=) 14.Rfd1 Qe7 15.Be5 de5 16.a4 Rad8 17.Nb3 Bf3 18.Bf3 Nd7 19.Rd5 Nf6 20.Rd8 Rd8 21.Rd1 Rd1 22.Qd1 h5 23.h3 Nh7 24.Qd5 Nf6 25.Qa8 Kh7 26.Qc6?? Bf8?? 27.c5+= Qe6 28.cb6 cb6 29.Qe6 fe6 30.Nd2 Bc5 31.Nc4 Bd4 32.Kf1 Kh6 33.Ke2 g5 34.Kd3 g4 35.hg4 hg4 36.Bd1 Kg5 37.f3 gf3 38.gf3 Nd7 39.Nd2 Kf4 40.Kc4 Nc5 41.Nb3? Nb3?? 42.Kb3 Ke3 43.Kc4 Kd2 44.Bb3 Ke2 45.Bc2 Kf3 46.Kd3 Kf2 47.Kd2 Kf3 48.Kd3 Kf4 49.Bb3 Bc5 50.Be6 Kg5 51.Bf5 Kf6 52.Kc4 Bd4 53.Kd5 Kg5 54.Be6 Kf4 55.Bf5 Ke3 56.Be6 Kd3 57.Kc6 Kc3 58.Bg4= Kb3 59.Bd1 Kb2 60.Kd5 Kc1 (60...Kc1 61.Be2 Kc2=). donaldzikzpo (1660) – trus (1775), kurnik, 2012.

7.a4 Bb7 8.0-0 d6 9.d4 Nbd7 10.c4 e5 11.de5 Ng4 (11...Ne4 12.Qc2 de5 13.Nc3 Nc3 14.Qc3=) 12.Nc3 (12.Nd4!? Nge5 13.f4+/-) 12...Nge5+= 13.Ne5 Be5 14.Bf3 (better 14.Rb1!?+=) 14...Bf3=+ 15.Qf3 Nc5 (15...Qh4 16.h3=+) 16.g3 (16.Qe2 Bc3 17.Bc3 Qh4+=) 16...Re8 (16...Nd3 17.Qe2 Nb2 18.Qb2=) 17.Qe2 Qd7 (17...Bc3 18.Bc3 Qe7 19.Qd1=) 18.Nd5 Qd8 19.Be5 Re5 20.f4 Re8 21.f5 Re5 (21...Kg7 22.fg6 fg6 23.Rf3+=) 22.fg6+/- hg6 23.Nf6 (23.Qf3!? f5 24.g4+=) 23...Kg7= 24.Qf3?? (better 24.Qb2=) 24...Rf5-+ 25.Nh5 Rh5 26.Qf7 Kh6 27.Rf6 Rg5 28.Raf1 Qe8 (28...Na4?! 29.h4 Rg3 30.Kh2=) 29.Qc7 Qe3 30.Kg2 Ne4 31.Rf7 Rh8 32.Qd7 (32.R1f3 Qd2 33.Kg1-+) 32...Rg3! 33.hg3 Qg3 34.Kh1 Kg5 (34...Kg5 35.Rh7 Rh7 36.Qh7 Nf2 37.Rf2 Qf2 38.Qe7 Kh6 39.Qd6 Qf1 40.Kh2 Qc4 41.Qb6 Qh4 42.Kg2 Qg4 43.Kf2 Qf4 44.Ke2 Qa4 45.Qe3 Kh5 46.Qf3 Kg5 47.Qd5 Kh6=) 0-1. Spata,G (2255) - Muradli,Mahammad (2445), Titled Tuesday, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 a5)

7.0-0 Bb7

8.d4 d6 9.a4 Nbd7 10.Nbd2 Re8 11.c4 e5 12.Re1 ed4 13.ed4 Ne4 14.Ne4 Be4 15.Nd2 Qg5 (15...Bb7 16.Bf3 Re1 17.Qe1 Bf3 18.Nf3+=) 16.Ne4+/- Re4 17.Bf3 Re1 18.Qe1 Rd8 19.Qe2 Nf6 20.Bc6 Nh5 21.g3 Bf8 (21...Nf4!? 22.Qe3 Ne6+/-) 22.Re1+– Ng7 23.h4 Qh5? (better is 23...Qf5+–) 24.Bf3 Qf5 25.Bg4 Qf6 (25...Re8 26.Bf5 Re2 27.Re2 gf5+–) 26.d5 (26.d5 Qe7 27.Qd2+–) 1–0. GuestYSMS – GuestJZPD, freechess.org, 2018.

6.b5 c5

7.c4 b6 8.0-0 Bb7 9.a4 e6 10.d4 d6 11.Nbd2 (11.dc5 dc5 12.Qc2 Nbd7=) 11...Nbd7 12.Nb3 (12.Re1 Re8=+) 12...Qc7=+ 13.Qc2 Rad8 (13...cd4 14.ed4 Rac8 15.Rfc1=+) 14.dc5 dc5 15.Nbd2 e5 16.e4 (16.Bd3 Rfe8 17.Ne4 Nh5=) 16...Rfe8 17.g3 Nf8 18.Rad1 N6d7 19.Nb1 Ne6 20.Nc3 Nd4 21.Nd4 ed4 (21...cd4 22.Nd5 Qc5 23.Qb1=+) 22.Nd5= Bd5 (22...Qe5 23.Bd3=) 23.cd5 h5 (better 23...Nf6!? 24.f3 Qe5+=) 24.Bd4!+– Ne5 (24...cd4 25.Qc7 Pinning (25.Qc7 Deflection); 24...Bd4 25.Rd4) 25.f4+– Ng4 26.Bg7 Kg7 27.h3 (better 27.Qd3+–) 27...Nf6? (better 27...Nh6+–) 28.d6! Rd6 29.e5 Rd1 (29...Rde6 30.ef6 Rf6 31.h4+–) 30.ef6 (30.Rd1?! Ng8+–; 30.Qd1?! Ng8=; 30.Bd1?! Nd5 31.Qe4 Ne7=+) 30...Kh7 (30...Kf6 31.Rd1 (worse 31.Qd1 Kg7+–) 31...Kg7 32.Qc3 Kh7 33.Bf3+–) 31.Bd1 h4 (31...Qd6 32.Bh5 Re3 33.Kg2+–) 32.gh4 Re3 (32...Qd6 33.f5 Qf6 34.fg6 Qg6 35.Qg6 Kg6 36.h5 Kg7 37.Bb3+–) 33.Bg4 c4 (33...Qd6 34.Qc4 Qf6 35.f5+–) 34.h5 Qc5 35.Kh2 (better 35.hg6 fg6 36.Kg2+–) 35...c3 (35...Qd4+–) 36.hg6 fg6 37.Qg2 Kh6 (37...Qf8 38.Qb7 Kh6 39.Qb6 Rd3+–) 38.Qa8 (38.Qa8 Kh7 39.Qa7 Re7 40.Qe7 Qe7 41.fe7 c2 42.e8Q Kg7 43.Re1 Kh7 44.Qf8 c1Q 45.Re7) 1–0. Pierre – Cleary, internet, 2020.

7.c4 d5 8.0-0=.

7.c4 d6 8.0-0 e5 9.d3 b6 10.Nc3 Bb7 11.Nd2 d5 12.cd5 Nd5 13.Na4 Nd7 14.Nc4 Rb8 15.Bf3 Qe7 16.Qb3 Rfd8 17.Na5 (17.Rad1 h6=) 17...ba5+= 18.Bd5 Bd5 19.Qd5 Rb5 20.Ba3 Rbb8 (20...Nb6 21.Qc6 Qd7 22.Qd7 Nd7= (worse is 22...Rd7 23.Nc5 Rd5 24.Rfb1 Rb1 25.Rb1+/-)) 21.Rab1 Qe8 22.Rb8 Nb8 23.Qc4 e4 (23...Na6!?+/-) 24.de4+– (worse is 24.Nc5 ed3 25.Rd1 Nc6 26.Rd3 h6+/-) 24...Nc6 25.Nc5 Rd2 26.Bc1 Ne5 27.Qb3 Re2 (27...Rd8 28.Ba3+–) 28.h3 (28.f4 Ng4 29.Qd1 Re3 30.Qg4 Bd4+–) 28...g5? (better is 28...Qe7!? 29.Qd5 Rc2+/-) 29.Rd1+– a4? (29...Bf8 30.Ba3 a4 31.Na4 Ba3 32.Qa3 Nc4+–) 30.Na4 Qc8 31.Nc3 Nf3 32.gf3 Bc3 33.Kf1 (33.Kf1 Re1 34.Re1 Be1 35.Bb2+– (35.Ke1?! Qc1 36.Qd1 Qc3 37.Kf1 Qc4 38.Qe2 Qc3+–)) 1–0. Gelashvili,T (2610) – Yeke,S (2320), IsBank TCh–TUR, Konya TUR, 2010. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 a5 6.b5 c5)

7.c4 d6 8.Nc3 Nbd7 (8...Bf5 9.d3=) 9.0-0 (9.d3 a4 10.Na4 Qa5 11.Nc3 Nd5 12.cd5 Bc3 13.Bc3 Qc3 14.Nd2 Nb6=) 9...Nb6 10.Rc1 (10.d3 a4=) 10...d5 (10...Bf5 11.d3=) 11.Na4 (11.cd5 Nbd5 12.Nd5 Qd5+=) 11...Nc4 (11...dc4 12.Nc5 Qd5 13.Bd4+/-) 12.Bc4 (12.Bf6 Bf6 13.d3 Nd6=) 12...dc4 13.Nc5 (13.Rc4 Be6 14.Rc5 Ba2 15.Bf6 ef6+=) 13...Qd5+= 14.Na4 (14.d4 b6 15.Na4 Qb5+=) 14...Qb5 15.Nd4 Qa6 (15...Qb4 16.a3 Qd6 17.Rc4+=) 16.Nc5-/+ Qd6 (16...Qb6 17.Na4 Qd8 18.Rc4+=) 17.Rc4+= b6 18.Na4 (18.Nd3 Ba6 19.Rc6 Qd5-/+) 18...Bb7 19.Nc3 Rfd8 20.Qb3 (20.Qb1 Ng4 21.g3 Ne5–+) 20...Ng4 21.g3? (better is 21.f4+=) 21...Ne5–+ 22.Ra4 (22.d3 Nc4 23.dc4–+) 22...Nd3?? (better is 22...Qd4! 23.ed4 Nf3 24.Kh1 Nd4 25.Kg1 Nb3 26.ab3 b5–+) 23.Ncb5 (23.Ba3!? Qf6 24.Qb1-/+) 23...Qd5–+ 24.Qd5 Bd5 25.Ba3 e5 26.Nb3 Bc6 27.Nc3 Ba4 28.Na4 b5 29.Nac5 b4 30.Nd3 Rd3 31.Bc1 a4 32.Nc5 Rd5 33.Ne4 f5 34.Ng5 Rb8 35.Ne6 Bh8 36.d4 b3 37.ab3 ab3 38.Bb2 Rd6 (38...Rd6 39.Nc5 ed4–+) 0–1. Zepeda,Rafael – Tinajero Tristan,Dante, Central America–ch, 1997.

7.0-0 b6

8.c4 Bb7 9.a4 d5 10.d4 Nbd7 11.Nc3 e6 12.Ne5 Rc8 13.Rc1 Qe7 14.Qb3 Rfd8 15.Bf3 (better is 15.Nd7!? Rd7 16.dc5 dc4 17.Qc4 Rc5 18.Qb3=) 15...dc4 16.Nc4 Bf3 17.gf3 cd4 18.ed4 Bf8 (better is 18...Nh5!? 19.Ne4 Nf4-/+) 19.Ba3= Rc4?? (better is 19...Qe8 20.Ne4 Nd5=) 20.Be7+– Rc3 21.Qc3 Be7 22.Rfe1 Nd5 23.Qc6 Nb8 24.Qb7 Bb4 25.Rc8 Rc8 26.Qc8 Kg7 27.Rc1 Bd6 28.Qd8 Bf4 29.Rc8 h5 30.Qh8 1–0. elsh1403 (1685) – sahtine (1865), kurnik, 2011.

8.c4 Bb7 9.a4 d5 10.d4 Nbd7 11.Nbd2 Rc8 12.Rc1 Rc7 13.Qb3 Qa8 14.Rfd1 Rfc8 15.cd5 Bd5 16.Bc4 Bc4 17.Nc4 cd4 18.Bd4 Ne4 (better is 18...Qe4=) 19.Nb6+/- Nb6 20.Rc7 Rc7 21.Bb6 Rc3 22.Rd8?? Qd8!–+ 23.Qc3 Qb6 24.Qc8 Bf8 25.Ne5?? Qc5 26.Qc5-/+ Nc5 27.Kf1 Na4 28.Nc4 Nb6?? 29.Na5?? f5 30.Ke2 Kf7 31.Kd3 Ke6 32.Kd4 Kd6 33.Nb7 Kc7 34.Nc5? e5! 35.Ke5 Bc5 0–1. elsh1403 – sahtine (1870), kurnik, 2011.

8.c4 Bb7 9.d3 d5 10.Nbd2 Nbd7 11.Qc2 Rc8 12.a3 Rc7 13.Rac1 Qa8 14.Ne5 Rfc8 (14...dc4!? 15.Nd7 Nd7 (worse is 15...Rd7 16.Nc4 Qd8 17.Rfd1+=) 16.Bg7 cd3 17.Qd3 Kg7+=) 15.Nd7 Rd7 16.Bf3 dc4 17.dc4 (worse is 17.Qc4 Ne4 18.Ne4 Bb2=) 17...Rd2 18.Qd2 Bf3 19.Bf6 (19.gf3 Qf3 20.Qd1 Qh3 21.Bf6 Bf6+=) 19...Bg2 (better is 19...Rd8 20.Qd8 Qd8 21.Bg7 Kg7 22.gf3 Qd3-/+) 20.Rfe1?? (better is 20.Be7 Re8 21.Qd7 Bf1 22.Rf1=) 20...Bf6–+ 21.e4 Be4 22.Qd7 Bh1 23.f3 Bf3 24.Rc2 Rd8 25.Qc7 Bd4 26.Kf1 Bg4 27.Qf4 Qh1# 0–1. ejdrzej (1700) – wictorio (1955), kurnik, 2012.

8.d3 Bb7

9.c4 d5 10.Nbd2 Nbd7 11.Qc2 Rc8 12.a3 Qc7 13.Rac1 Qb8 14.h3 e5 15.cd5 Nd5 16.Nc4 Rfe8 17.Rfe1 h6 18.d4 (18.Nfd2!?=) 18...cd4 19.ed4 ed4 20.Nd4 Ne5 21.Nc6 Nc6 22.bc6 Bc6 23.Bg7 Kg7 24.Qb2 Kh7 25.Bf3 b5 26.Re8 Re8 27.Na5 Ba8 28.Nb3 Qe5?? 29.Qe5+/- Re5 30.Rc5 Re1 31.Kh2 Nb6 32.Ba8 Na8 33.Rb5 Kg7 34.a4 Re2 35.f3 Ra2 36.a5 Nc7 37.Rb7 Na6 38.Rb6 Nc7 39.h4 h5 40.Rc6 Ne6 41.Kg3 Ra3 42.Nc5 Ra5 43.Ne6 fe6 44.Re6 Rb5 45.Ra6 Rc5 46.Kh3 Rb5 47.g4 hg4 48.Kg4 Rc5 49.f4 Rb5 50.Re6 Rc5 51.Re5 Rc1 52.f5 Rg1= 53.Kh3 Kf6 54.Ra5 gf5 55.Kh2 Rg8 56.Ra6 Ke5 57.Ra5 Kf4 58.Ra4 Kf3 59.Ra3 Kg4?? 60.Ra4 f4-/+ 61.Kh1 Kg3 62.Kg1? Rb8 63.Ra3 f3 64.Ra1 Rb2 65.Rf1 Rg2 66.Kh1 Rh2 67.Kg1–+ f2 68.Rf2 Rf2 69.h5 Rh2 70.h6 Rh6 (70...Rh6 71.Kf1 Re6 72.Kg1 Re1#) 0–1. ejdrzej – grajaro (1860), kurnik, 2012.

9.Nbd2 d5 10.c4 Nbd7 11.Qc2 Rc8 12.a3 Rc7 13.Rac1 Qa8 14.cd5 Bd5 15.Nc4 Rfc8 16.Rfe1 Qb7 17.Rf1 g5 18.e4 Bc4 19.Qc4 g4 20.Ne5 Ne5 21.Be5 Rd7 22.Bf6 Bf6 23.Bg4 e6 24.Bf3 Qc7 25.Rfd1 Rd4 26.Qc2 Rcd8 27.Be2 Kh8 28.g3 Rg8 29.Kg2 Qe5 30.Rf1 Bg5 31.Rcd1 f5 32.ef5 Qf5 33.Bf3 Rgd8 34.Be4 Qf7 35.Qe2 Bf6 36.Rfe1 Ra4 37.Bc6 Rd6 38.Be4 Bc3+= 39.Rf1 Ra3 40.f4 Rb3 41.Kh1 a4 42.f5 e5 43.Qa2 Rd4 44.f6 Kg8 45.Rf5 Rb2 46.Qf7 Kf7= 47.Rdf1 h6 48.Re5 Rd7 49.Rh5 Bd2 50.Bd5 Kf8 51.Bc4 Rd6 52.f7 a3 53.Re5 Rd8 54.Re6 a2= 55.Rb6?? Rb1–+ 56.Ba2 Rf1 57.Kg2 Rf7 0–1. ejdrzej (1705) – wictorio (1870), kurnik, 2012.

9.Nbd2 d5 10.c4 Nbd7 11.Qc2 Rc8 12.a3 Rc7 13.Rac1 Qa8 14.cd5 Nd5 15.Nc4 f6 16.Rfd1 e5 17.Qb3 Kh8 18.Nd6 Rd8?? (18...a4 19.Qc4+/-) 19.Nb7?? (better is 19.Nf7 Kg8 20.Nd8 Qd8 21.e4+–) 19...Qb7+= 20.Nd2 Nf8 21.Bf3 Ne6 22.g3 Rcd7 23.Bg4 Rd6? 24.Nc4 Qe7 25.Nd6 Rd6 26.Be6 Qe6 27.d4 ed4 28.ed4 cd4 29.Bd4 h5 30.Bb2 Kh7 31.Rc6?? Rc6?? 32.bc6+– Nc7 33.Qe6 Ne6 34.Rd6 Nc7 35.Bf6 Bf6 36.Rf6 Kg7 37.Rd6 Kf8 38.Rd7 Nb5 39.c7 Na7 40.Rd8 (40.Rd8 Ke7 41.Ra8+–) 1–0. ejdrzej (1690) – grajaro (1835), kurnik, 2012.

9.Nbd2 d5 10.c4 Nbd7 11.Qc2 Rc8 12.Rac1 Qc7 13.h3 e5 14.cd5 Nd5 15.a3 Qb8 16.Nc4 f6 17.Rfd1 Rfd8 18.Qb3 Kh8 19.d4 cd4 20.ed4 ed4 21.Nd4 Nc5 22.Qg3 Nf4 23.Bf1 Ne4 24.Qe3+/- Bd5 25.Nc6 Bc6 26.bc6 Rd1 27.Rd1+– f5?? 28.Bg7 Kg7 29.g3 Ne6?? 30.Rd7 Kg8 31.Qh6 Nf6 32.Nd6 Rc6?? 33.Nf5!+/- Nd7 34.Ne7+– Kf7 35.Nc6 Qd6 36.Qh7 Kf8 37.Qh8 Kf7 38.Nd8 Nd8 39.Qd8 Qe7? 40.Bc4+– Kf6 41.Qh8 Qg7 42.Qh4 g5 43.Qd4 Kg6 44.Bd3 Kh5 45.g4 Kh4 46.Qg7 Kh3 47.Bf5 Nf6 48.Qh6 Nh5 49.Qh5 1–0. ejdrzej (1730) – wictorio (1930), kurnik, 2011.

9.Nbd2 d5 10.c4 Nbd7 11.Qc2 Rc8 12.h3 Rc7 13.Rac1 Qa8 14.Rfd1 Rfc8 15.a3 e6 16.Qb3 Qb8 17.Ne5 Ne8 18.Nd7 Rd7 19.Bg7 Ng7 20.Bf3 Rcd8 21.e4 d4 22.Qc2 e5 23.Be2 Rf8 24.Nf1 f5 25.ef5 gf5 26.Qd2 Qd8 27.Nh2 e4 28.Qf4 Qc7 29.Qc7 Rc7 30.g3 Re7 31.Re1 Rfe8 32.Kf1? Kf7 33.de4 fe4 34.Bg4 e3 35.fe3 Re3–+ 36.Re3 Re3 37.a4 Rg3 38.Kf2 Ra3 39.Rf1 Ra4 40.Nf3 Bf3 41.Bf3 Ke7 42.Re1 Kd6 43.Bd5 Ra3 44.Rg1 Nf5 45.Rg8 Rh3 46.Rb8 Ke5 47.Rb6 d3 48.Re6 Kd4 49.Re1 Rh2 50.Kg1 Rb2 51.Be4 Ne3 52.Bd3 Kd3 0–1. ejdrzej (1770) – wictorio (1865), kurnik, 2011.

6.b5 c6

7.0-0 cb5 8.Bb5 Qb6 (8...d5 9.Nc3=) 9.c4+= d5 10.Bd4 Qd8 11.Nc3 (11.cd5 Qd5 12.Nc3 Qh5+=) 11...dc4= 12.Bc4 Nc6 13.Qb3 (13.Bf6 Bf6 14.d4 Bg4+=) 13...Nd4 14.Nd4 e6 (14...Nd7 15.Nf3=) 15.Rab1 (15.Nf3 b6+=) 15...Nd7 (15...a4 16.Na4 Ne4 17.Nf3 Nd2 18.Nd2 Qd2 19.Nb6+=) 16.Nf3+= Nc5 (16...b6 17.d4+=) 17.Qb5 Bc3 (17...Bd7 18.Qc5 Rc8 19.Qa7 Rc4 20.Rb7+=) 18.dc3 Ne4 (18...Qc7 19.Rfd1+=) 19.Qe5+/- Nd2 (19...Nd6 20.Bb3+/-) 20.Nd2 Qd2 21.Rfd1 (21.Rbd1 Qc2+/-) 21...Qc2 22.Qf6 (22.Rbc1 Qa4 23.Bb3 Qe8+/-) 22...Rb8 23.h3 (23.Qf4 Ra8+/-) 23...Bd7 24.Qe5 (24.Rbc1 Qa4 25.Bb3 Qc6+=) 24...Bc6+= 25.Bb3 (25.Bd3 Qa4+=) 25...Qe4= 26.Qe4 Be4 27.Rbc1 (27.Rb2 b5=) 27...Rfd8 (27...Bc6 28.Rd4=) 28.Rd4 Bc6 29.Rcd1 Rd4 30.cd4 Rd8 (30...a4 31.Bc4=) 31.Kf1 (31.Rc1 a4 32.Bc4 Kf8+=) 31...Bd5 (31...Rc8 32.Rd2=) 32.Bd5+= Rd5 33.Rc1 (33.Ke2 b5+=) 33...Rb5 (33...e5 34.Rc5 Rc5 35.dc5=) 34.Rc2 a4 35.Ke2 a3 36.Kd2 Kg7 37.e4 Kf6 38.f4 g5 39.g3 gf4 40.gf4 Rh5 41.Rc3+/- Ra5 42.e5 Kf5 43.Rc7 Kf4 44.Rf7 Ke4 45.Kc3 b5 46.Rh7+/- Ra4 47.Rh4 Kd5 48.Rh7 Rc4= 49.Kb3 Rd4 50.Ka3 Ke5 51.h4 Kf6 52.Rh6 Kg7 53.Re6 Rh4 54.Re5 b4 55.Kb3 Kf6 56.Ra5 Ke6 57.Rc5 Kd6 58.Rf5 Kc6 ½–½. Wall,Bill – Zepher, internet, 2004.

7.0-0 d5 8.Nc3=.

7.a4 d5 8.0-0 Nbd7 9.d4 Nb6 10.Nbd2 Bg4 11.c4 Bf3 12.Bf3 cb5 13.ab5 e6 (13...dc4!? 14.Bb7 Rb8+/-) 14.c5+/- Nc4? (better 14...Nbd7+/-) 15.Nc4+- dc4 16.Bb7 Rb8 17.c6 Nd5 18.Qc2 Qc7 19.Rfc1 Rb7 20.cb7 Qb7 21.Qc4 Nb6 (21...Ra8 22.Qc6 Qb8 23.Ba3+-) 22.Qc6 Qa7 (22...Qb8 23.Ra5 Rc8 24.Qe4 Rc1 25.Bc1+-) 23.Ba3 Rc8 (23...a4 24.Bf8 Bf8 25.e4+-) 24.Qc8 Nc8 25.Rc8 Bf8 26.Rf8 Kg7 27.Bc5 Qc7 (27...Qb7 28.Ra5 Qe4+-) 28.b6 Qb7 29.Ra5 Qe4 30.h3 Qb1 31.Kh2 g5 32.Ra7 Kg6 33.Rg8 Kf5 34.f3 e5 35.Rf7 (35.d5 Qh1 36.Kh1 e4 37.Rf7 Ke5 38.Rg5) 35...Ke6+- 36.Re7 Kd5 37.b7 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

7.Nc3 d5=.

7.c4 d5

8.0-0 dc4 9.Bc4 cb5 10.Bb5 Nc6 11.d4 Bg4 12.Nbd2 e5 (12...Rc8 13.Rc1+=) 13.Be2 (better is 13.de5!? Nd7 14.Bc6 bc6 15.Qa4 Bf3 16.Nf3+/-) 13...ed4 14.Nd4 Be2 15.Qe2 Nd4 16.Bd4 Nd5 17.Bg7 Kg7 18.Nf3 Qf6 19.Rac1 Rfc8 20.a3 Nc3 21.Qb2 b5 22.Nd4+/- b4 23.ab4 ab4 24.Qd2 Ra2 25.Rc2 b3 26.Rb2 Ne4 27.Qe2 Rc2 28.Rc2+= bc2 29.Nc2?? Qb2–+ 30.f3 Nc3?? 31.Qd3= Qc2 32.Qd4 Kf8 33.Qc5?? Ke8 34.Qe5 Kd7 35.Qd4 Kc6 36.Qc4 Kb6 37.Qb4?? Nb5–+ 38.Qd6?? Nd6 (38...Nd6 39.Rf2 Qf2 40.Kh1 Qg2#) 0–1. ejdrzej (1710) – masterbeast (1755), kurnik, 2012.

8.0-0 Bg4 9.d3 Nbd7 10.h3 Bf3 11.Bf3 dc4 12.dc4 cb5 13.cb5 (worse is 13.Bb7 Rb8 (worse is 13...bc4 14.Ba8 Qa8 15.Na3+/-) 14.Ba6 bc4-/+) 13...Nc5 14.Nd2 Nd3 15.Bd4 e5 16.Bc3 (worse is 16.Bb7 Rb8 17.Be4 Nf2 18.Rf2 ed4 19.ed4 Ne4 20.Ne4 Bd4–+) 16...Rc8 17.Qb3 a4 18.Qa3 e4 (better is 18...Nd5 19.Bd5 Qd5+=) 19.Ne4+/- (19.Be4? Rc3 20.Qc3 Ne4–+) 19...Ne4 20.Bg7 Nd2?? (better is 20...Kg7 21.Be4 Nc5+/-) 21.Bf8+– Nf1 22.Rd1 Qf8 23.Qd3 (23.Rd3?! Qa3 24.Ra3 Nd2+/-) 1–0. ejdrzej (1635) – kwapimat, kurnik, 2012.

8.0-0 Bg4 9.cd5 cd5 10.h3 Bf5 11.d4 Ne4 12.Nbd2 Nd7 13.Ne4 Be4 14.Bd3 Nf6 15.Be4 Ne4 16.Nd2 Nd6 17.a4 Qd7 18.Ba3 Rfc8 19.Rc1 Nc4 20.Nc4 dc4 21.Bc5 e6 22.b6 Qd5 23.Qe2 Bf8 24.Rc4 Bc5 25.dc5 Rc5= 26.Rc5 Qc5 27.Rb1 Rc8 28.Qb5 Qc2 29.f3 Rc5 30.Qe8 Kg7 31.Rf1 Rc4 32.Qd7 Qe2 33.Qb7 Rc2 34.f4 Qe3 35.Kh1 Rb2 36.Qc7 Qb6 37.Qe5 Kg8 38.Rd1 Qb8 39.Qa5= Rb6 40.Qd2 Ra6 41.a5 Qc7 42.Ra1 h5 43.h4 Qe7 44.Qd3?? Qh4 45.Kg1 Ra8 46.a6 Qf4 47.a7 Qc7 48.Qe3 Qb7 49.Qf2 Kg7 50.Kh1 Kh7 51.Qd4 Qe7 52.Qf2 h4 53.Rf1? Kg8 54.Ra1-/+ h3 0–1. ejdrzej (1645) – arayashiki (1815), kurnik, 2012.

8.a4 Nbd7 9.0-0 Re8 10.d4 Ne4 11.Nbd2 Ndf6 12.Rc1 Bg4 13.Re1 Bh6 14.h3 Nd2 15.Nd2 Be2 16.Qe2 Nh5 17.cd5 cd5 18.Nf3 f6 19.Qc2 Rc8 20.Qb3 Qd6 21.Ba3 Qe6 22.b6 Rc4 23.Qb5 Rec8 24.Rc4 Rc4 25.Qa5 Qc6 26.Be7 Ra4 27.Qd2 Qb6 28.Rc1 Kf7 29.Bc5 Qb3 30.Qc2 (30.Qc2 Qc2 31.Rc2 Ra1 32.Kh2+=) 1–0. tadziczek – viator, kurnik, 2012.

8.a4 Nbd7 9.Nc3 Re8 10.d4 e5 11.0-0 e4 12.Nd2 Nf8 13.f3 ef3 14.Bf3 Re3 15.cd5 cd5 16.Qb3 (better is 16.Nb3!?+=) 16...Ne6–+ 17.Rfe1 Nd4 18.Qd1 Nf3 (better is 18...Re1!? 19.Qe1 Nc2 20.Qh4 Qb6 21.Kh1 Na1 22.Ba1–+) 19.Nf3 Re1 20.Qe1 Bg4 21.Rd1 Bf3 22.gf3 Qb6 23.Kh1 Re8 24.Qg3 Nh5 25.Qg4 Qf2 26.Ba1 Re1 27.Re1 Qe1 28.Kg2 Bc3 29.Bc3 Qc3–+ 0–1. elsh1403 – newinchess, kurnik, 2011.

6.b5 d6

7.0-0 e5 8.c4 Nbd7 9.Nc3 Re8 10.Qc2 Nf8 11.Ng5 N6d7 12.Nf3 Ne6 13.Rad1 f5 14.d3 Nf6 15.Ba1 Rf8 16.Nd2 g5 17.Na4 Nd7 18.Bf3 g4 19.Bd5 Rf6 (19...Nf6!?=) 20.c5 Rh6 21.Rfe1 Kh8 22.cd6 cd6 23.Be6 Re6 24.f4 Nb6 25.fe5 de5 26.Nb6 Qb6 27.a4 Bd7 28.Nc4 Qc5 29.Rc1 f4 (29...g3 30.hg3 Rc8 31.Qf2+=) 30.Qf2 Rc8 31.Re2 (31.ef4 ef4 32.Qc5 Rc5 33.Bg7 Kg7 34.Na5 b6+–) 31...Ree8 (31...Qd5 32.ef4 Qd3 33.Rec2 ef4 34.Bg7 Kg7 35.Qf4+/-) 32.Rec2 (better is 32.ef4!? Qf2 33.Rf2+/-) 32...fe3= 33.Ne3 Qa3 34.Rc8 (34.Nc4 Qa4 35.b6+=) 34...Bc8 35.Qc2 Be6 36.Nc4 Qc5 37.Qf2 Rc8 38.Qc5 Rc5 39.Kf2 e4 (39...Kg8 40.Bb2 e4 41.Ba3 Rf5 42.Ke2 ed3 43.Kd3 Rd5 44.Ke2-/+) 40.Bg7= Kg7 41.Ke3 ed3 42.Kd3 h5 43.Kd4 b6 44.Rc3 Rd5 45.Ke4 Rc5 46.Kd4 ½–½. Querol Soro,Sergio (1975) – Martinez Asensio,Juan Miguel (2160), Aragon–chT Autonomico, 2007.

7.0-0 e5 8.c4 Nbd7 9.Nc3 Re8 10.d3 Nc5 11.d4 ed4 12.Nd4 Nfe4 13.Rc1 Nc3 14.Bc3 Ne4 15.Bf3 Qh4 16.Ne2 Nc3 17.Nc3 Rb8 (17...Be5 18.g3 Qd8 19.Nd5=) 18.Nd5 Be5 19.g3 Qd8 20.Qa4 b6 21.Rfd1 Bh3 22.Bg2 Bd7 23.Rd2 Bg7 24.Qd1 Qc8 25.h4 (25.a3 Bg4 26.Qb3 Qd7+=) 25...Be5 26.h5 Bg4 27.f3 Be6 (27...Bh5? 28.g4 Bg4 29.fg4+–) 28.f4 Bg7 29.hg6 hg6 (29...fg6 30.Qf3=) 30.Qe2 Qd7 31.Kf2 Qc8 (31...f5 32.Rh1=) 32.Bf3 Bd7 33.g4 g5 (33...Be6 34.Ke1+=) 34.Rh1 gf4 35.Nf4 Kf8 36.Rd5 (36.Nd5 Re5+=) 36...Re5 (36...Be5 37.g5=) 37.Re5+= Be5 38.Rh5 Be6 (38...c6 39.Qd3 cb5 40.Re5 de5 41.Qd6 Kg8 42.Nd5+–) 39.Qd1 (39.Ke1 Ke7+=) 39...Qd8 (39...Bc4 40.a4=) 40.g5 (40.Ne6 fe6 41.Ke2+/-) 40...d5?? (better is 40...Bc4 41.a4 Qd7=) 41.Ne6+– fe6 42.cd5 Bg7 (42...Qd7 43.Qd3+–) 43.Qh1 (43.de6 Qd1 44.Bd1 Rd8+–) 43...Qe8 44.Rh8! (44.Rh8 Bh8 45.Qh8 Ke7 46.Qf6 Kd6 47.Bg4+–) 1–0. idontcastle – pcmvr, net–chess.com, 2018.

7.c4 Nbd7 8.d4 Re8 9.Nbd2 (9.0-0 e5=) 9...e5 10.0-0 e4 (10...ed4 11.ed4 Nh5 12.Re1=) 11.Ng5 (11.Ne1 Nb6=) 11...h6 (11...Nf8 12.f3 ef3 13.Rf3=+ (worse 13.Ndf3 h6-/+; worse 13.Bf3 Re3 14.Nge4 Ne4 15.Ne4 Qh4=+)) 12.Nh3 Nf8 13.Nf4 Ne6 14.Nd5 Nd5 (14...Ng5 15.Qc2+=) 15.cd5 Ng5 16.b6 (16.Qc2 Bf5+=) 16...c6 17.dc6 bc6 (17...Qb6 18.cb7 Qb7 19.Rb1+=) 18.Ba3 c5 (18...Rb8 19.Rb1+=) 19.Rb1 cd4 (19...Be6 20.dc5 Ba2 21.c6 Bb1 22.Qb1+–) 20.b7+– Bb7 21.Rb7 d3 22.Bg4 h5? (better 22...f5 23.Qb3 d5+–) 23.Bd7+– Re7 24.Qa4 Bc3 25.Nc4 Nf3 (25...Bb4 26.Nb6 Rb8 27.Rb8 Qb8+–) 26.gf3 ef3 (26...Bb4 27.Bb2 ef3 28.Qb5 Rd7 29.Rd7+– (29.Qd7?? Qg5 30.Qg4 Qg4 31.Kh1 Qg2)) 27.Bd6 (27.Nd6?! Rd7 28.Kh1 Rb7 29.Nb7 Qd5=) 27...Rd7 (27...d2 28.Be7 Qe7 29.Qb5+–) 28.Qd7 Qg5 (28...Qd7 29.Rd7 Re8 30.Rd1+–) 29.Bg3 h4 (29...Rf8 30.Qd3 Bf6+–) 30.Qf7 Kh8 31.Qh7 1–0. Pierre – JohnS_son, internet, 2020.

7.d3 e5 8.0-0 h6 9.c4 Be6 (9...Nbd7 10.Nc3=) 10.Nc3 Re8 11.Nd2 c6 (11...Nbd7 12.Bf3 Nc5 13.Qc2=) 12.Na4 (12.Nde4 d5 13.Nf6 Bf6 14.cd5 cd5+=) 12...Nbd7= 13.bc6 bc6 14.Ba3 Qc7 15.Rb1 Reb8 16.Rb8 (16.Qc2 Rd8=) 16...Rb8 17.Nb3 Bf8 18.d4 Bf5 19.f3 e4 20.f4 h5 21.h3 Be6 22.Bb2 (22.Nc3 Nb6 23.Nd2 d5 24.Bf8 Kf8=) 22...d5 (22...Rb4!? 23.Nc3 a4+=) 23.c5+= Be7 24.Bc3 Attacks the isolani on a5 24...Ra8 25.Be1 Ne8 26.g4 hg4 27.hg4 f5 28.Kg2 (28.g5 Ng7+/-) 28...fg4 (28...Nef6!? 29.gf5 gf5+=) 29.Bg4+/- Bg4 (29...Bf5!? 30.Bf5 gf5+/-) 30.Qg4+– Kf7 (30...Nf8 31.Nb6 Ra6 32.f5+–) 31.f5 gf5 32.Qh5 (32.Qf5 Nef6 33.Bg3 Qd8+–; 32.Rf5?! Nef6 33.Bg3 Qb7 34.Qh5 Ke6+–) 32...Kg8? (32...Kg7 33.Nb6 Ra7 34.Na5 Ndf6 35.Qg5 Kh8+–) 33.Qf5 Ndf6 (33...Bf6 34.Bg3 Ng7 35.Bc7 Nf5 36.Rf5+–) 34.Qe6 Kg7 35.Nb6 Ra7 (35...Ra6 36.Na5 Bf8 37.a4+–) 36.Na5 Bf8 (36...Bd8 37.Nc6 Ra2 38.Rf2+–) 37.a4 Kh7 (37...Qf7 38.Qf5 Ra5 39.Ba5 Qg6 40.Qg6 Kg6+–) 38.Nc6 (38.Rf6?! Qg7 39.Rg6 Qg6 40.Qg6 Kg6 41.Nc6 Rg7+–) 38...Qg7 (38...Rb7 39.Bg3 Qf7 40.Qh3 Bh6 41.Nd8+–) 39.Bg3 Rf7 (39...Nh5 40.Qf5 (40.Qe8?? Qg3 41.Kh1 Qh4 42.Kg1 Rg7 43.Qg6 Rg6) 40...Kh6 41.Qf8 Ng3 42.Qf4 (42.Qe8 Nf1 43.Kh1 Ne3 44.Qe6 Kg5 45.Nd5 Ra4 46.Ne3 Ra1 47.Kg2 Kh4 48.Qg4 Qg4 49.Ng4 Kg4-/+) 42...Kh5 43.Qg3 Qg3 44.Kg3 Rg7 45.Kf2+–) 40.Rh1 (40.Ne5!? Nc7 41.Qf7 Qf7 42.Nf7 Ng4+–) 40...Kg6 (40...Kg8 41.Ne5 Be7+–) 41.Ne5 1–0. Fries Nielsen,Jens Ove (2395) – Bjarnason,Saevar (2315), 3rd Klaksvik IM, 2004. (=1.Nf3 Nf6 2.e3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Be2 d6)

7.d4 c6 8.c4 cb5 9.cb5 Nbd7 10.0-0 b6 11.Nc3 Bb7 12.Rc1 Ne8 13.Qd2 d5 14.Rc2 Nd6 15.Ba1 Nf6 16.a4 Nfe4 17.Ne4 Ne4 18.Qd3 Rc8 19.Rfc1 Rc2 20.Rc2 Qb8 21.Ne5 Be5 22.de5 Rc8 23.Bd4 Nc5 24.Qd1 e6 25.Rc1 Qc7 26.Bb2 Qd7 27.Qd4 Qd8 28.Bd1 Nd7 29.Rc8 Qc8 30.Bb3 Nc5 31.Ba2 Nd7 32.Bc3 ½–½. Machete99 (2210) – neguev (2010), ICC, 2002.

7.d4 Nbd7 8.0-0 e5 9.c4 Ne4 10.Nc3 Nc3 11.Bc3 Re8 12.Qc2 Qe7 13.Rfe1 b6 14.Nd2 Bb7 15.Bf3 Bf3 16.Nf3 f5 17.Rad1 Qf7 18.Qb2 (18.Bb2 e4 19.Nd2 d5+=) 18...Re7 (18...Qc4!? 19.de5 Ne5 20.Be5 Be5 21.Ne5 Re5+=) 19.de5+= Ne5 20.Ne5 Be5 21.Be5 Re5 22.g3 (22.Qc3 Rae8+=) 22...Rae8 (22...Qc4!? 23.Rb1 Qe6+=) 23.Rd4= Re4 ½–½. Barcza,Gedeon – Matanovic,Aleksandar, HUN–YUG Budapest, 1960. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 a5)

7.d4 Nbd7 8.0-0 e5 9.c4 Re8 10.Nc3 ed4 11.ed4 (11.Nd4 Ne5=) 11...Nf8 (11...d5 12.Ne5=) 12.Re1+= Bf5 13.Nh4 (13.a4 Ne6+=) 13...Bd7 (13...Bc8 14.Bd3=) 14.Nf3 (14.Qd2 a4 15.a3 Bc8+=) 14...Bf5 15.Nh4 (15.Rc1 Bh6 16.Nd2 Ne6=) 15...Bd7= 16.Nf3 (16.Qd2 a4 17.a3 Bc8+=) ½–½. Mikhalchishin,Adrian (2480) – Giorgadze,Tamaz (2495), Lvov, 1984.

5.Be2 a6

6.0-0 b5 7.d3 Bb7 8.Nbd2 Nc6 9.c3 (9.a3 a5 10.ba5 Na5=) 9...a5 (9...Nd5 10.Qb3 e6 11.c4 bc4 12.dc4+=) 10.a4+= ab4 11.ab5 bc3 (11...Na7 12.d4 bc3 13.Bc3+=) 12.Bc3 (12.Ra8 Ba8 13.Bc3 Na7+=) 12...Ra1 (12...Na7 13.Qb1+=) 13.Qa1+/- Nb8 14.Qa7 Qc8 15.Nc4 Nd5?? (better is 15...Re8+/-) 16.Bg7+– Kg7 17.Na5 Nc3 (17...c6+–) 18.Qd4 (18.Nb7?! Ne2 19.Kh1 Nc3 20.Qd4 f6 21.Qc3 Qb7+=; 18.Qb7 Qb7 19.Nb7 Ne2 20.Kh1 Nc3+=) 18...f6 19.Qc3 Bf3 (19...c6 20.b6+–) 20.Bf3 (worse is 20.gf3 e5+–) 20...c5 21.b6 (21.bc6 Nc6 22.Nc6 dc6+–) 21...d6 22.b7 (22.Rc1 Qd7+–) 22...Qc7 (22...Qf5 23.Rb1+–) 23.Rb1 (23.d4 Nd7+–) 23...Rd8 (23...Qd8 24.Nb3 e5 25.Bd5+–) 24.d4 1–0. Janek – Kangaroo, internet, 2017.

6.0-0 b5 7.d3 Bb7 8.Nbd2 d6 9.c4 Nbd7 10.cb5 ab5 11.d4 Rb8 (11...Ra4 12.a3 c6 13.e4=) 12.Qc2+= Ba8 (12...Nd5 13.a3 c6 14.Bd3+=) 13.e4 e5 (13...Nh5 14.Rfc1+=) 14.de5 (14.d5 Nh5 15.Rfc1 Nf4=) 14...Ne5 15.Ne5 de5 16.Be5 The backward pawn on c7 becomes a target 16...Re8 (16...Ne4!? 17.Bg7 Nd2 18.Bf8 Qd5+=) 17.f4+– c5 (17...Re5 18.fe5 Qd4 19.Kh1 Ne4 20.Ne4 Qe4 21.Qe4 Be4 22.Rae1+/-) 18.bc5 Rc8 (18...Re5 19.fe5 Qd4 20.Kh1 Ne4 21.Ne4 Be4 22.Qb3 Qc5 23.Qf7 (23.Rf7?! Bd5 24.Rg7 Kg7+=) 23...Kh8 24.Rae1 Be5 25.Bg4+–) 19.Kh1 (19.Bb5 Re5 20.fe5 Ng4+–) 19...Nh5 (19...b4+–) 20.Bg7 Kg7 (20...Ng7 21.Bb5 Bc6 22.Bc6 Rc6 23.e5+–) 21.Bb5 Qh4 (21...Bc6 22.Rab1 Bb5 23.Rb5 Qd4+–) 22.Qc3 f6 (22...Kg8 23.Be8 Re8 24.Rae1+–) 23.Be8 Re8 24.Rab1 (24.Qb3 Bc6+–) 24...Nf4 (24...Be4 25.Ne4 Re4 26.c6+–) 25.g3 Ne2 26.Qf3 (26.gh4?! Nc3 27.Rbc1 Ne4 28.Ne4 Re4+–) 26...Qh3 (26...Qe4 27.Ne4 Be4 28.Rb7 Kh6 29.Qe4 Re4+–) 27.Qe2 f5 (27...Qc8 28.Rfc1+–) 28.Kg1 Be4 (28...fe4 29.Nc4 Bd5+–) 29.Ne4 Re4 30.Rb7 Kh6 31.Qd2 g5 (31...f4 32.Rf4 Qg2 33.Kg2 Rf4 34.Qf4 g5 35.Qf5 g4 36.Rh7) 32.Qd6 Kh5 33.Rh7 (33.Rh7 Kg4 34.Qd1 Re2 35.Qe2) 1–0. Barcarola (1605) – tpoe2, internet free game, 2018.

6.0-0 Nc6 7.a3 d6 8.d4 Bg4 9.h3 Bf5 10.c4 Re8 11.Bd3 Bd3 12.Qd3 Nd7 13.Nbd2 Na7 14.Rab1 Rb8 15.d5 Bb2 16.Rb2 Qc8 17.Rc1 c5 18.Ne4 f5 19.Neg5 cb4 20.ab4 Nf6 21.Ne6 Qd7 22.Qd4 Nc8 (22...Nc6 23.Qf4 (worse is 23.dc6 Qe6 24.cb7 Rb7+=) 23...Nd8 24.Nfd4+/-) 23.Nd2 Nb6?? (23...b5 24.cb5 Nb6 25.ba6 Nbd5 26.Nf4+–) 24.e4 (better is 24.Qb6 Rec8 25.Ra1 Qe8+–) 24...Nc8 25.ef5 gf5 26.g4 fg4 27.hg4 h6 28.Ne4 Kf7 29.Nf6 ef6 30.f3 Rg8 31.Rh2 Rh8 32.Kg2 Ne7 33.Rch1 Ng8 34.Qf4 Kg6?? 35.Qf5 Kf7 36.g5 Qe7 37.gh6 Qe8 38.h7 Ne7 39.Qh5 Ng6 40.Qh6 Ke7 41.Qg7 Qf7 42.Qf7 Kf7 43.Kf2 Ne5? 44.Rg2 Ng6 45.Rhg1 Rh7 46.Rg6 Rh2 47.Ke3 Rb2 48.Rg7 (48.Rg7 Ke8 49.Rg8 Ke7 50.R1g7) 1–0. Fournier,Frederic (1830) – jld1959 (1730), Active, 2005.

6.0-0 d6 7.c4 e5 (7...c5 8.bc5 dc5 9.d4=) 8.Nc3 (8.d4 ed4 9.Nd4 c5=) 8...Be6 (8...Nc6 9.b5 ab5 10.cb5=) 9.d4+= ed4 10.Nd4 Nc6 (10...Nbd7 11.Bf3 Rb8 12.Ne6 fe6 13.Ne2=) 11.Ne6 (11.Nc6 bc6 12.Qa4 a5 13.ba5 Rb8+=) 11...fe6= 12.Qb3 White prepares b5 12...Kh8 (12...Nd7 13.Rad1=) 13.f4 e5 (13...a5 14.a3+=) 14.b5 (14.Nd5 Qd7+=) 14...ab5 15.cb5 Ne7 (15...Na5 16.Qc2+=) 16.fe5+/- de5 17.Rad1 Qe8 18.Ba3 (18.Na4 Ne4 19.Rf8 Qf8 20.Bf3+/-) 18...Nf5 (better is 18...Bh6!? 19.Kh1 e4+/-) 19.Bf8+– Qf8 20.Nd5 White plans b6 20...Nd5 (20...Qc5 21.Nf6 Bf6 22.Rc1+–) 21.Qd5 Qe7 (better is 21...Qb8 22.Rf3 Qa7+–) 22.Qb7 Ra2 (22...Qa3 23.e4 Nd6 24.Qc7 Qe3 25.Kh1 Qe2 26.Qd6 Qb5+–) 23.b6 Rc2 (23...cb6 24.Qe7 Ne7 25.Rd8 Bf8 26.Bc4+–) 24.Qc8 Qf8 (24...Bf8 25.b7 Rb2+–) 25.Rd8 (25.Rd8 h5 26.Rf8 Bf8 27.b7+–) 1–0. Adlai – Karpoww, corr, 2018.

6.d3 b5 7.0-0 Bb7 8.Nbd2 c6 9.h3 Qc7 10.c4 e5 11.cb5 ab5 12.a3 Nd5 13.e4 Ne7 14.Rc1 d5 15.ed5 Nd5 16.Ne4 Nd7 17.Nc5 Nc5 18.Rc5 Nf4 19.Be5 Be5 20.Re5 Ne6 21.Qb3 Rad8 22.Rd1 c5 23.bc5 Bf3 24.Bf3 Qe5 25.c6 Rc8 26.Kf1 Nd4 0–1. Phomopsis (1675) – Bedabani, lichess.org, 2019.

5.Be2 b6

6.b5 Bb7 7.0-0 d6 8.a4 a6 9.c4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.d4 Qa8 13.Nbd2 Ne4 14.Bb2 Nd2 15.Qd2 Nf6 16.Ra1 Qb8 17.Qb4 c6 (17...e6 18.Qa4+/-) 18.bc6+/- Bc6 19.d5 Bd7 20.Ra6 Bg4 (20...b5 21.Bf6 (worse 21.cb5 Nd5 22.Qb3 Rc8=) 21...Bf6 22.cb5+/-) 21.Rb6 (21.Qb6?! Nd5 22.cd5 Bb2=) 21...Qa7 22.Rb7 Qa2 23.h3 Bf5 24.Nd4 Bc8 (better 24...Qb1!? 25.Kh2 Bd7+-) 25.Re7+- Qb1 (25...Ba6 26.Ra7 (26.Qd6?! Bc4 27.Bc4 Qb2+-) 26...Ne4 27.Bf1+-) 26.Kh2 Nd5 (26...Ne4 27.Ba3 Qb4 28.Bb4 f5+-) 27.cd5 Be5 (27...h6 28.Ba3 Qb4 29.Bb4 Be5 30.g3+-) 28.f4 (28.f4 Bh8 29.Rc7+-) 1-0. DEFFM – GuestYSTJ, freechess.org, 2021.

6.0-0 Bb7

7.a3 a5 8.b5 c5 (8...c6 9.Nc3 Ne4 10.Na4 Bb2 11.Nb2 cb5 12.Bb5 d5 13.Rb1 Qd6+=; 8...d5 9.d3 c6 10.bc6 Nc6 11.Nc3 Re8 12.Rb1 Rc8 13.d4 Ne4=) 9.d4 cd4 10.Nd4 Qc7 11.c4 Ne4 12.Nd2 Nc5 13.Bf3 Nd3=.

7.a3 c5 8.Nc3 (8.c4 d5 (8...a6 9.d4 cd4 10.ed4 Qc7 11.Re1 e6 12.Nc3 Rc8 13.Rc1 d6+=; 8...Na6 9.Qa4 Nc7 10.Nc3 d5 11.bc5 bc5 12.cd5 Ncd5 13.Rab1 Nb6+=; 8...d6 9.d4 a6 10.Nc3 Nbd7 11.d5 b5 12.bc5 Nc5 13.Rb1 bc4+=) 9.d4 cd4 10.Nd4 dc4 11.Bc4 Qd6 12.Nc3 a6 13.Qe2 Rc8=) 8...d5 (8...Nc6 9.bc5 (9.b5 Nb8 10.d4 cd4 11.Nd4 a6 12.Rb1 d5 13.f4 Qc7=) 9...bc5 10.Rb1+= Rb8 11.Na4 d6 12.c4 Na5 13.d3 Qd7=; 8...Na6 9.bc5 Nc5 10.Rb1 Rc8 11.d4 Nce4 12.Ne4 Be4 13.Rc1 Qc7=) 9.bc5 (9.Rb1 Nbd7 10.bc5 Nc5 11.d4 Ne6 12.Bd3 Rc8 13.Ne5 a6=). Fischer,D – Trigance, corr SOK–90–64, 1990.

7.a3 Nh5 8.Bg7 Ng7 9.Qc1 d5 10.c4 dc4 11.Bc4 Bf3 12.gf3 Qd6 13.f4 Nc6 14.Nc3 Nf5 15.Nb5 Qd7 16.d4 a6 17.Nc3 Nh4 18.Qd1 Qh3 19.Bd5 Na7 20.Qe2 Rad8 21.Bh1 c5 22.Ne4 Rd5 23.Ng5 Rg5 24.fg5 cd4 25.ed4 Nc8 26.f4 Qc3 27.Qf2 Nf5 28.Rfd1 Ncd6 29.Rac1 Qa3 30.b5 Nb5 31.Bf3 Nbd4 32.Ra1 Qf3 33.Rd4 Qf2 34.Kf2 Nd4 35.Ra6 b5 36.Ke3 Rd8 37.Rb6 b4 38.Rb4 Nc2 39.Kf2 Nb4 40.h4 Rd7 41.f5 Rd3 0–1. Adamkosh (1805) – Elmer1025 (1980), lichess.org, 2019.

7.a4 d6 8.a5 Nbd7 (8...ba5 9.Ra5 c5 10.c3=) 9.ab6 (9.a6!? Bf3 10.Bf3+=) 9...ab6= 10.Ra8 Ba8 11.c4 Bb7 (11...c5 12.d4=) 12.Na3 (12.d4 c5+=) 12...e5= 13.d4 ed4 14.Nd4 Ne5 15.Nab5 Nc6 (15...Qe7 16.Nc3=) 16.Nc6 (16.Bf3 Nd4 17.Bd4 Qb8+/-) 16...Bc6+= 17.Nd4 Bb7 18.Qb3 Qd7 19.Bf3 (19.Ra1 Ra8+=) 19...Bf3= 20.Nf3 Ne4 (20...Ra8!?=) 21.Bg7+= Kg7 22.Rd1 (22.Ra1 Re8+=) 22...Re8 23.h3 f6 (23...Ra8 24.Qb2 f6 25.Nd4=) 24.Qd3 (24.Ra1 Qf7+=) 24...Qe6 (24...Qa4 25.b5+=) 25.Nd4 (25.Ra1 Qf5+=) 25...Qd7 (25...Qe5 26.Qc2+=) 26.Nb5 Qc6 27.Qd4 Ng5 (27...Re5 28.Ra1 Rg5 29.Nc7+-) 28.Nc3 Ne6 29.Qd3 Nd8 30.Nd5 Qd7 (30...Nf7 31.Qd4 Ne5 32.Ra1 Qc4 33.Qc4 Nc4 34.Ra7+/-) 31.Qd4 (31.b5 Nb7+/-) 31...Qf7 32.b5 (32.Qh4 Nc6+/-) 32...Ne6+= 33.Qg4 Nc5 (33...Ra8 34.Qh4+=) 34.Ra1+/- Ne4? (better 34...Rd8+/-) 35.Ra7+- f5 (35...h5 36.Qd1 Rc8 37.Nb6+-) 36.Qf4 (better 36.Qd1!? Rc8+-) 36...Rc8 37.f3 (37.Nb6 Rd8+-) 37...Nf6? (better 37...g5 38.Qh2 Nf6+-) 38.Qd4 h6 (38...h5 39.Nb6! cb6 40.Rf7 Kf7 41.Qb6+-) 39.Nb6! Re8 (39...cb6 40.Rf7 Double attack (40.Rf7 Pinning; 40.Rf7 Deflection; 40.Rf7 Decoy)) 40.Nd5 g5 (40...Kf8 41.Nf6 Rd8+-) 41.Rc7 Re7 42.Re7 Qe7 43.Ne7 Kf7 44.Nd5 Nd5 45.Qd5 Kf6 46.Qd6 Kg7 47.c5 (47.c5 f4 48.ef4 Kf7 49.c6 h5 50.c7 h4 51.c8Q Kg7 52.Qcd7 Kg8 53.Qb8; 47.b6 g4 48.b7 gf3 49.b8Q f2 50.Kf2 Kh7 51.Qbc7 Kg8 52.Qdd8) 1-0. onxisback (2105) - ribarisah (2000), Rated Bullet game, lichess.org, 2014.

7.Qc1 Nc6 8.a3 d6 9.c4 e5 10.Nc3 Re8 11.Re1 e4 12.Nd4 Nd4 13.ed4 Nd7 14.d5 c5 15.b5 a6 16.a4 ab5 17.ab5 Ra1 18.Qa1 Nf6 19.Bf1 Qa8 20.Qa8 Ra8 21.Ra1 Ra1 22.Ba1 Bc8 23.Na4 Nd7 24.Bg7 Kg7 25.Be2 Kf6 26.Bg4 Ke7 27.Bd7 Bd7 28.Nb6 f5 29.Nd7 Kd7 30.Kf1 Kc7 31.Ke2 Kb6 32.Ke3 Ka5 33.Kf4 Kb4 34.b6 Ka5 35.b7 Kb4 36.b8Q Kc4 37.Qb2 Kd5 38.Qb3 Kc6 39.Qc4 Kd7 40.Qd5 Ke7 41.Kg5 Kd7 42.Kf6 Kc7 43.Ke6 Kb6 44.Qd6 Kb5 45.Kd5 c4 46.Qc5 Ka4 47.Qc4 Ka3 48.Kc5 1–0. Adamkosh (1925) – Sl131_2–09ava, lichess.org, 2020.

7.Nc3 d6 (7...d5= 8.a3 c5 9.Na2 Nbd7 10.bc5 bc5 11.Rb1 Rb8 12.d4 Qa5 13.dc5 Qc5=; 7...a6 8.d4 d5 9.a3 Qd6 10.Qd3 Nbd7 11.Rab1 c5 12.dc5 bc5 13.Rfd1 cb4=; 7...Re8 8.a3 e5 9.d4 e4 10.Nd2 a6 11.f3 Bh6 12.f4 Bg7 13.Qe1 d5=; 7...Nd5 8.a3 a5 9.b5 Nc3 10.Bc3 Bc3 11.dc3 d6 12.Qd2 e5 13.Rad1 Qe7=) A) 8.Bc4 c6 (8...c5 9.bc5 dc5 10.d3 Nc6 11.Qe2 Na5 12.Bb3 a6 13.Rfd1 Qc7=) 9.a4 Na6 10.b5 Nb4 11.bc6 Bc6 12.Nd4 Bb7 13.a5 Rc8=; B) 8.d4 Nbd7 (8...a5 9.b5 c5 10.bc6 Bc6 11.Nb5 Bb5 12.Bb5 Qc7 13.c4 Nc6+/-) 9.Rb1 a6 10.Qd3 c5 11.bc5 dc5 12.d5 b5 13.e4 e6=; C) 8.a4 c5 9.b5 a6 10.d3 d5 11.ba6 Ra6 12.Nb5 Nc6 13.Ne5 Ra5=.

7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0).

7.d3 a5 8.b5 a4 9.a3 c6 10.Nbd2 cb5 11.d4 Ra5 (11...Ba6 12.e4=) 12.Bc3 d6? (better 12...Ra8=) 13.Ba5+- ba5 14.Bb5 Nbd7 15.Bd7 (better 15.c4!?+-) 15...Qd7+/- 16.c4 Ne4 17.Ne4 Be4 18.Nd2 Ba8 (18...Bd3!? 19.Re1 Rb8+/-) 19.Rb1+- h5 20.Rb5 e5? (20...Bc6 21.Qa4 Qg4 22.f3+-) 21.Ra5 (better 21.d5 Bb7 22.Qa4+-) 21...ed4 22.ed4 (22.Ra4?! de3 23.fe3 Bh6+=) 22...Bd4 23.Qa4 (23.Ne4 Be4 24.Qd4 Qg4+-) 23...Qa4? (better 23...Bc6 24.Qb3 Qc7+/-) 24.Ra4+- Bc5?! (24...Bc6 25.Ra6 Rc8+-) 25.Nb3 Bc6 (25...Bb6 26.Rd1+-) 26.Ra6 (26.Nc5 dc5 27.Ra5 Rb8+-) 26...Bb7 (26...Be4 27.Nc5 dc5 28.Rd1+-) 27.Ra5 Rc8 28.Nc5 dc5 29.Rb1 Be4 30.Rbb5 Rd8 31.h3 (better 31.f3!? Bf5+-) 31...Rd1 32.Kh2 Rd2 33.Rc5 (better 33.Kg3!? h4 34.Kh4 Bg2 35.Rc5 Bf1+-) 33...Rf2 34.Rg5 Kg7 35.c5 (35.Ra7 Rc2+-) 35...f6 36.Rg3 h4 37.Re3?? (37.Rg4 f5 38.Kg1 Rc2 39.Rh4 Bg2+-) 37...Bg2?? (better 37...Rg2!? 38.Kh1 Re2 39.Re4 Re4 40.Ra7 Kf8=) 38.Kg1 (38.Rc3 Bc6 39.Kg1 Rg2 40.Kf1 Ra2+-) 38...Rc2+/- 39.Re7 (39.Ra6!?+/-) 39...Kh6+= 40.c6 (40.Ra4 g5 41.Re3 Kg6+=) 40...Bh3= 41.c7 g5 (41...Bf5 42.Rd5=) 42.Rd5 (42.Ra8!?+/-) 42...g4= 43.Rd8 (43.Rd4 Rc1 44.Kh2 Rc2 45.Kg1 Rc1 46.Kh2 Rc2 47.Kg1=) 43...Rc1 (43...g3!? 44.Rd1 Bc8-/+) 44.Kf2= g3 45.Ke3?? (45.Kf3 g2 46.Rh8 Kg6 47.Rg8 Kf5 48.Rg2 Rc3 49.Kf2 Bg2 50.Kg2 h3 51.Kh2 Kg4=) 45...g2?? (better 45...Re1 46.Kf3 Re7-+) 46.Kf4?? (46.Rh8 Kg6 47.Rg8 Kh6 48.Rh8 Kg6 49.Rg8 Kh6 50.Rh8=) 46...g1Q (better 46...Rf1 47.Ke4 Re1 48.Kf3 Re7-+) 47.Rh8= Kg6 48.Rg8 Kh6 49.Rg1?? (better 49.Rh8 Kg6 50.Rg8 Kh6 51.Rh8=) 49…Rc4 (49...Rc4 50.Ke3 Bf5+-) 0-1. AlbertOOO44444 - profedunca (2525), profedunca Arena, lichess.org, 2020.

7.d3 c5 8.b5 a6 9.a4 (9.Nc3 Nd5 10.ba6 Na6 11.Nd5 Bb2+=) 9...ab5+= 10.ab5 Ra1 11.Ba1 d5 (11...d6 12.Nbd2=) 12.Nbd2 Nbd7 13.c4 Qa8 (13...Qc7 14.Qc2=) 14.Re1 (14.Qc2 Qb8=) 14...Rd8 (14...Qa2!?+=) 15.Qb3= Qa7 16.Bf1 (16.Bc3!?+=) 16...Ra8 (16...dc4 17.dc4 Ne4 18.Bg7 Nd2 19.Nd2 Kg7 20.Qc3 Kg8 21.Ra1=) 17.Bc3 Qa2 18.Qa2 Ra2 19.Ra1 Ra1 20.Ba1 dc4 21.dc4 Ne4 22.Bg7 Nd2 23.Nd2 Kg7 24.f4 Kf6 25.g4= e5 26.g5 Ke7 27.h4 ef4 28.ef4 Nf8 29.Bg2 Bc8 30.Kf2 Ne6 31.Ke3 Nd4 32.Bd5 Nf5 33.Ke4 Nh4-/+ 34.Ke5 Nf5 35.Nb1 h6 36.gh6?? Nh6–+ 37.Nc3 f6 38.Ke4+= Kd6 39.Bc6 Be6 40.Bd5 Bf5 41.Kf3 Bd3 42.Ne4 Be4-/+ 43.Ke4 g5 44.fg5 fg5 45.Kf3? Ke5–+ 46.Kg3? Kd4 47.Be6 Kc3 48.Bd5? Nf5 49.Kg4 Ne3 50.Kg5 Kd4 51.Bf3 Nc4 52.Kf4 Na3 53.Be2 c4 54.Bc4 Kc4 55.Ke3 Nb5 56.Kd2 Kb3 57.Kc1 Na3 58.Kd2 b5 59.Kc1 b4 60.Kd2 Kb2 (60...Kb2 61.Kd3 b3 62.Kd4 Kc2 63.Kd5 Kd3 64.Kc6 b2 65.Kb7 b1Q 66.Kc7 Qg1 67.Kd7 Qa7 68.Ke6 Qb6 69.Kf5 Ke3 70.Ke5 Nc4 71.Kf5 Qh6 72.Kg4 Qg6 73.Kh4 Kf4 74.Kh3 Qg3#) 0–1. Starr,Albert Martin – Sowell,Nelson (1735), San Francisco MI Hurt mem U1800, 2005.

7.d3 c5 8.bc5 bc5 9.c4 d6 10.Nc3 Nc6 11.Rb1 Rb8 12.Ba1 Nd7 13.Nd2 Ba8 14.Rb8 Qb8 15.Nd5 Ba1 16.Qa1 Qd8 17.Rb1 e6 ½–½. Hammer – Unzicker, Biel 1979.

7.d3 c5 8.bc5 bc5 9.c4 d6 10.Nc3 Nc6 11.Nd2 Rb8 12.Rb1 Qd7 13.Nb3 Nb4 14.a3 Nc6 15.d4 cd4 16.ed4 Qd8 17.d5 Ne5 18.Bc1 Bc8 19.Be3 a6 20.Nd4 Rb1 21.Nb1 Qc7 22.h3 Ne4 23.Qc2 Nc5 24.Nd2 Bd7 25.Rb1 Rb8 26.Rb4 a5 27.Rb8 Qb8 28.Qc3 f5 29.Qa5 f4 30.Bf4 Nc4 31.Qc5 Nd2 32.Qb4 Qb4 33.ab4 Bd4 34.Bd2 Kf7 35.Bg5 e6 36.de6 Be6 37.b5 Ke8 38.Be3 Bc5 39.Bg4 Kd7 40.Be6 Ke6 41.Bc5 dc5 42.f4 Kd5 43.g4 c4 44.Kf2 c3 45.Ke2 Kc4 46.b6 1–0. Barcza – Reicher, Bucharest 1960.

7.d3 d5 8.Nbd2 Nbd7 9.a3 Re8 10.c4 c6 11.cd5 cd5 12.Qb3 e5 13.Rac1 e4 14.de4 de4 15.Nd4 Bd5 16.Qd1 Qe7 17.Bc4 Bc4 18.Nc4 Ne5 19.Ne5 Qe5 20.Qb3 Qe7 21.Rc2 Rac8 22.Rfc1 Rc2 23.Rc2 Qd7 24.Rd2 Rd8 25.Qc4 Rc8 26.Qe2 Qc7 27.Nb5 Qb7 28.Nd6 Qc7 29.Nc8 Qc8 30.Qd1 Qc7 31.Rd8 Bf8 32.Bf6 1–0. Phomopsis – soheil_sgh (1715), lichess.org, 2019.

7.d3 d5 8.Nbd2 Nbd7 9.a4 Re8 10.d4 Ne4 11.Ne5 Ne5 12.de5 Nd2 13.Qd2 e6 14.f4 Rc8 15.a5 c5 16.ab6 Qb6 17.bc5 Qc5 18.Rfc1 a6 19.Bd4 Qc6 20.c3 Ra8 21.Rcb1 Bf8 22.Rb6 Qc8 23.Qb2 Re7 24.Rb1 Bc6 25.Qa2 Bb7 26.R1b3 Rc7 27.Qb2 Ra7 28.Re6! Qe6 29.Ba7 Bc8 30.Bd4 Kg7 31.Rb6 Rc6 32.Rc6 Qc6 33.e6 f6 34.Qb6 Qb6 35.Bb6 Ba3 36.Ba5 Kf8 37.c4 dc4 38.Bc4 Ke7 39.Kf2 f5 40.h3 Bc5 41.Ke2 Be6 42.Ba6 Bd5 43.Kf2 Kd6 44.Be2 Be4 45.Bc3 Ba3 46.Be5 Kc5 47.Ba6 Bc1 48.Bd4 Kd6 49.Bc4 Bd5 50.Bd3 Ba3 51.g4 Be6 52.gf5 gf5 53.Kf3 Bd5 54.e4 fe4 55.Be4 Be4 56.Ke4 Ke6 57.f5 Kf7 58.Kf4 Bc1 59.Be3 Be3? 60.Ke3 Ke7 61.Ke4 Kf7 62.Ke5 Ke7 63.h4 Kf7 64.f6 Kf8 65.Ke6 Ke8 66.f7?? Kf8= 67.Kf6 h6 68.Kg6 h5 69.Kh5 Kf7 70.Kh6 Kg8 ½–½. Manzanilla,Rufino – Ridolfi,Raffaele, ITA Inps op Italy, 1998. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 b6 6.0-0 Bb7)

7.d3 d6 8.Nbd2 e5 9.c4 Nbd7 10.Rc1 Re8 11.Nb3 c5 12.a3 Qe7 13.e4 Nh5 14.g3 f5 15.Nfd2 Nhf6 16.ef5 gf5 17.Bf3 Bf3 18.Qf3 Qe6 19.Rfe1 Ng4 20.Bc3 Rf8 21.h3 Nh6 22.Qg2 Qg6 23.Nf1 Kh8 24.Rcd1 Nf7 25.h4 Nf6 26.Nh2 Rg8 27.Kh1 Bh6 28.Rg1 Rae8 29.Qf3 Nd8 30.Rde1 Ne6 31.Bb2 Ref8 32.b5 Ng4 33.Qe2 Nh2 34.Kh2 f4 35.g4 f3–+ 36.Be5 de5 37.Qe5 Ng7 38.g5 Qh5 39.Qe4?? Re8-/+ 40.Qf4 Ne6 41.Qg4 Qg4?? 42.Rg4= Bg7 43.Rge4 Nc7 44.Re8 Re8 45.Re8 Ne8 46.Kg3 Nd6 47.Kf3 Bb2 48.a4 Kg7 49.Kg4 Kf7 50.f4 Ke6 51.Nd2 Nf5 52.Nf1 Bc1 53.h5 Bb2 54.Kf3 Bc1 55.Ke4 Nd6 56.Kf3 Nf5 57.Ke4 h6 58.g6 Kf6 59.Kf3+= Nd4 60.Kg4 Ne2 61.f5 Bg5 62.Ng3 Ng3 63.Kg3 Bd2 64.Kg4 Bc3 65.Kf4 Bd4 66.Ke4 Kg5 67.Kd5 Kh5 68.Kc6 Kg5 69.Kb7 h5 70.Ka7 h4 71.Kb6 h3 72.a5 h2 73.a6 h1Q 74.a7 Qa8 0–1. Cabarkapa,Novak (1940) – Meszaros,Bela (2305), Subotica City–ch, 2008.

7.d3 d6 8.Nbd2 e5 9.e4 Nbd7 10.Re1 Re8 11.Bf1 c5 12.a3 a5 13.bc5 Nc5 14.Nc4 b5 15.Nb6 Qb6 16.d4 Nce4 17.de5 de5 18.Ne5 Qf2 19.Kh1 Ng5 20.Bd4 Qf4 21.Rb1 Nh3 22.Nf3 Ng4 23.g3 Qf3 24.Qf3 Bf3 25.Bg2 Ngf2 26.Bf2 Nf2 27.Kg1 Bg2 28.Kg2 Ng4 29.h3 Ne5 30.Rb5 Nc4 31.Rc5 Re1 0–1. Chess4Win – Marat201878, lichess.org, 2019.

7.d3 e6 8.Nbd2 Nd5 9.Bg7 Kg7 10.a3 Nc3 11.Qe1 Qf6 12.Nb3 Ne2 13.Qe2 Kg8 14.Rac1 Bf3 15.Qf3 Qf3 16.gf3 Nc6 17.c4 Ne5 18.d4 Nf3 19.Kg2 Ng5 20.h4 Ne4 21.f3 Nf6 22.e4 d5 23.e5 Nd7 24.c5 bc5 25.Nc5 Nc5 26.dc5 c6 27.Rfd1 a6 28.Rd4 f6 29.ef6 Rf6 30.Rf1 Raf8 31.Kg3 e5 32.Rdd1 e4 33.f4 e3 34.Rde1 d4 35.Rd1 e2 0–1. Phomopsis (1665) – bluekey (1605), lichess.org, 2020.

7.d4 c5 8.c3 Qc7 9.Nbd2 d6 10.a4 Nbd7 11.a5 Rac8 12.Qb3 e5 13.de5 de5 14.Rfd1 e4 15.Ne1 Ne5 16.b5 c4 (worse is 16...ba5 17.c4+=) 17.Qa2 Nd3 18.Nc2 Rfe8 19.Nd4 h5 20.Nf1 Nd5 (worse is 20...Nb2 21.Qb2 Bd5 22.Ra2+=) 21.a6 Ba8 22.Bd3 ed3 23.Rac1 Bh6 24.Re1 Qd7 25.Rcd1 Qg4 (25...Bg7 26.Qa4 Bd4 27.cd4 c3–+) 26.f3= Qd7 27.e4 Nf4 28.Bc1 Qc7 29.Be3 Bg7 30.Qd2 Ne6 31.Ne6 Re6 32.Bd4 Qd7 33.Bg7 Kg7 34.Qb2 Rc5 35.Nd2 Rb5 36.Qa2 Rc6 37.Qa4 Rbc5 38.Qb4 Qc8 39.Ra1 Rc7 40.Ra2 Qd7 41.Rb2 Qe6 42.h3 Bc6 43.f4?? Bd7 44.Nf3 b5 45.Ra2 Qf6 46.f5 gf5 47.e5 Qh6 48.Rf2 Qa6 49.Nd4 Qb6 50.Re3 a5 51.Rg3 Kf8 52.Qb2 Re5 53.Qd2 h4 54.Rgf3 b4 55.Qg5 bc3 56.Qh4 Re1 57.Kh2 Qd6 58.g3 Rc5 59.Qd8 Re8 60.Qh4 Be6 61.Rf4 c2 62.g4 c1Q 63.gf5 Bf5 0–1. Chandler,Patrick – Marcks,Martin, Cologne–ch, 1993. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 b6 6.0-0 Bb7)

7.d4 c5 8.bc5 bc5 9.dc5 Qc7 10.Nbd2 Qc5 11.Rb1 Qc7 12.Bd3 Rc8 13.Re1 d6=.

7.d4 c5 8.dc5 bc5 9.bc5 Qc7 10.Nbd2 Qc5 11.Rb1 Qc7 12.Bd3 Rc8 13.Re1 d6=.

7.d4 h6 8.Nbd2 d6 9.c4 Nbd7 10.Rc1 c5 11.bc5 dc5 (11...bc5 12.Rb1=) 12.Bd3 Qc7 13.d5 Ng4 14.Bg7 Kg7 15.h3 Nde5 16.Ne5 Ne5 17.Bb1 f5 (17...Nd7 18.Qb3+=) 18.f4 Nd7 (18...Nf7 19.e4 fe4 20.Ne4+/-) 19.g4+/- Rf6? (better is 19...Qd6+/-) 20.gf5+– gf5 (20...Nf8 21.Rf2 Qd7 22.fg6+–) 21.Bf5! Rg8 (21...Rf5 22.Qg4 Pinning) 22.Be6?? (better is 22.Kf2 Kf8 23.Qh5+–) 22...Rg6?? (better is 22...Re6 23.de6 Kf6 24.Kf2 Rg2 25.Ke1 Ke6+/-) 23.Kf2+– Rf8 (23...Re6 24.de6 Kh8 25.ed7 Qd7 26.Rg1 Rg1 27.Kg1 (27.Qg1?! Qd2 28.Kg3 Kh7+/-) 27...Qh3 28.Kf2 Qg2 29.Ke1 Qg3 30.Ke2+–) 24.Rg1 Rf4 (24...Ne5 25.Ke2 Rff6+–) 25.ef4 Qf4 26.Nf3 Rg1 (26...Ne5 27.Rg6 Kg6+–) 27.Qg1 Kh7 (27...Kf6 28.Qg8 Qf3 29.Kf3 Bd5 30.cd5 Ne5 31.Ke4 Ng6 32.Rg1 c4 33.Qg6) 28.Re1 (28.Qg8) 28...Qc4 29.Bf5 (29.Qg8) 29...Kh8 30.Re7 Qa2 31.Re2 (31.Ke3 Qb3 32.Bd3 Qd3 33.Kd3 Ne5 34.Ne5 Ba6 35.Kc3 Bd3 36.Qg7) 31...Qd5 32.Ne5 (32.Re8 Nf8 33.Rf8 Qg8 34.Rg8) 32...Qd4 33.Kf1 Qd1 34.Re1 Ba6 35.Kg2 Bb7?? (better is 35...Qd5 36.Re4 Ne5=) 36.Kf1 Ba6 ½–½. Menouar,Elhadi – Saoudi,Mohamed Lamine (1955), 3rd President ALG Open, 2015.

6.0-0 c5

7.a3 Bb7 8.d3 e6 9.Nbd2 Qe7 10.Rb1 Na6 11.b5 (11.e4 d5+=) 11...Nc7= 12.a4 d6 13.Re1 e5 14.e4 Nd7 15.Bf1 (15.c3 d5=) 15...a6 16.c4 Ne6 17.Ra1 f5 18.a5 (18.Qb3 Ng5+=) 18...g5 (18...ab5 19.cb5 Ra5 20.Ra5 ba5 21.Qa4-/+) 19.Kh1 (better is 19.ab6!? ab5 20.Ra8 Ba8 21.ef5 Rf5 22.Qa1 Nb6 23.cb5+=) 19...g4-/+ 20.Ng1 h5 (20...ba5 21.Ra5 ab5 22.Ra8 Ba8 23.cb5 fe4 24.Qg4 Rf2 25.Bc3-/+) 21.ab6+= ab5 22.Ra8 Ba8 23.ef5 Rf5 24.Qa1 (24.f3 gf3 25.Ngf3 b4-/+ (worse is 25...Nb6 26.cb5 Qd7 27.Qa1+=)) 24...Nb6 25.Qa5 Qc7 26.Qb5 Bc6 27.Qb3 Rf2 28.Ne4 Be4 29.de4 Bh6 (29...Nd4 30.Bd4 ed4 31.Qg3-/+) 30.Bc3 (30.Ne2 h4 31.Kg1 Rf7-/+) 30...Nd7 31.Ra1 Ndf8 (31...Qc6 32.Qb5 Nd4 33.Qb1–+) 32.Ne2 h4 33.Ba5 (33.Qd1 Qf7-/+) 33...Qf7 (33...Rf1!? 34.Rf1 Qa5 35.Qb7–+) 34.Kg1 Nd4 35.Qd3?? (35.Nd4 ed4 36.Qd1 Ng6–+) 35...Ng6 (better is 35...Nc2! 36.Rd1 Ne3–+) 36.Nd4 ed4 37.Be1?? (37.Qd1–+) 37...Be3 (37...Be3 38.Ra8 Nf8 39.Rf8 Kf8 40.h3 Rg2 41.Kg2 Qf3 42.Kh2 g3 43.Bg3 hg3) 0–1. Sie Thu – Short,Nigel D, Bangkok Open, 2016. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 b6 6.0-0 c5)

7.a3 d5=.

7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bb7 11.c4 d6 12.Nc3 Nbd7 13.Qb3 e6 14.Bb2 Qc7 15.Ra1 Ra8 16.Ra8 Ba8 ½–½. Vukovic,Zdravko (2470) – Marinkovic,Ivan (2445), YUG–chT, 2000. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 b6 6.0-0)

7.b5 a6 8.a4 (8.ba6 d5=) 8...ab5 (8...d5 9.ba6 Na6 10.Nc3=) 9.ab5 (9.Bb5 d5=) 9...Ra1 10.Ba1 d5 11.c4 (11.Nc3=) 11...d4 (11...dc4!? 12.Bc4 Bb7=) 12.ed4+= Ne8 13.dc5 (better is 13.Nc3!? cd4 14.Nd5+=) 13...Ba1=+ 14.cb6 e5 (14...Bd4 15.Nd4 Qd4 16.Nc3=+) 15.Qa4 Bd4 16.Nd4 (16.Qa7 Nd7 17.Nd4 ed4+–) 16...ed4 (16...Qd4 17.Qa7 Nd7+–) 17.c5+= Ng7 (17...Qe7 18.Qc4+=) 18.Qa7 (18.Rc1 Re8 19.Bf3 Ne6+/-) 18...Nd7 (18...d3!? 19.Bf3 Be6+/-) 19.b7+/- Bb7 20.c6 Bc6 (20...d3!? 21.Bf3 Bc6 22.bc6 Ne5+/-) 21.bc6+– Nb6 22.Rc1 Ne6 23.g3 d3 24.Bd3 Qd3 25.Qb6 Nd4 26.Nc3?? Qd2= 27.Qb1 Rc8 28.Kg2 Rc6 29.Qb8 Kg7 30.Qe5 f6 31.Qe7 Kh6 32.Ne4?? Qc1–+ 33.Qf8 Kh5 34.h3 Re6 35.Nc5 Re5 36.g4 Kg5 37.h4 Kg4 38.f3 Nf3 39.Qc8 f5 (40.Qf5 gf5 41.Kf2 Qg1) 0–1. Popov,Sinisa S (2335) – Sambolec,Zarko (2245), YUG–chT2 Tivat, 1995.

7.b5 d5 8.c4 Bb7 9.cd5 Nd5 10.Bg7 Kg7 11.Qb3 Nd7 12.Na3 e5 13.d3 f5 14.Nc4 Qf6 15.Qb2 Rae8 16.Nfd2 e4 17.Qf6 Rf6 18.de4 Nc3 19.Bf3 Be4 (worse is 19...Nb5 20.e5 Rc6 21.Bc6 Bc6 22.f4+–; 19...fe4?! 20.Bg4 Ne5 21.Ne5 Re5 22.a4+=; worse is 19...Ne4 20.Ne4 Be4 21.Rfd1+=) 20.a4 Bf3 21.Nf3 f4 22.Rfe1 fe3 23.Re3 Re3 24.fe3 Re6 25.Ra3 Nd5 26.a5 Re7 27.ab6 N7b6 28.Nfd2 Nc4 29.Nc4 Nb6 30.Na5 c4 31.Nc6 Rd7 32.Kf2 (32.Ra7?? Ra7 33.Kf1 Ra1 34.Ke2 Ra2 35.Kf3 c3–+; worse is 32.Na7 c3 33.Rc3 Ra7-/+) 32...Kf6 (32...Nc8 33.e4+=) 33.Ke2 Nc8 34.Ra6 Rd6 35.Ra4 Rd5 36.Nd4 Rc5 37.Ra6 Ke5 38.Nc6 Ke4 39.Na7 Na7 40.Ra7 Rb5 41.Re7 Kd5 42.Rh7 Kc5 43.Rc7 Kb4 44.Kd2 Rg5 45.Rb7 Kc5 46.g3 Rh5 47.Kc3 Rh2 48.Rc7 Kd5 49.Rc4 Ke5 50.g4 Rg2 51.Kd3 Kf6 52.e4 Ke5 53.Rc5 Kf4 54.e5 Rg3 55.Kd4 Re3 56.Rc6 Re4 57.Kd3 Re3 58.Kd4 Re4 59.Kd3 ½–½. Soskov,V (2275) – Sepp,O (2440), Viljandi EST, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 b6 6.0-0 c5)

7.bc5 bc5 8.c4 Nc6 9.Nc3 Rb8 10.Rb1 d6 11.Ba1 (11.d3 Qa5 12.Qd2 Bf5=) 11...Bf5 (11...Rb1 12.Qb1 Bf5 13.Bd3+=) 12.Rb8 Qb8 13.d3 Qb7 (13...Qc7 14.a3=) 14.Qa4 (14.Qc2 Rb8=) 14...Rb8 15.Nd2 (15.Nd5 Nd5 16.cd5 Nb4 17.Bg7 Kg7=) 15...Bd7 (15...Qd7 16.a3=) 16.Rb1 Qc8 17.Rb8 Qb8 18.Qb3 (18.Qd1 Bf5=) 18...Qb4 19.a3 Qb3 20.Nb3 Ne5 (20...Kf8 21.d4 cd4 22.ed4=) 21.Nb5 (21.d4 cd4 22.ed4+=) 21...a6 (21...Bb5!? 22.cb5 Nd5+=) 22.Nc7+/- Ne8 23.Na6 Ba4 24.d4 Nc6 (24...Nf3 25.Bf3 Bb3+/-) 25.Bf3 (25.Nac5!? dc5 26.Nc5+/-) 25...Bb3+= 26.Bc6 cd4 27.Bd4 (27.Be8? d3 28.Bc6 d2–+; 27.ed4?! Bc4 28.Be8 Ba6=) 27...Bd4 28.ed4 Bc4 29.Nb4 (29.Be8 Ba6 30.a4 Bb7+=) 29...Nc7 30.a4 Na6 (30...f6 31.a5+=) 31.Na6+/- Ba6 32.Bb5 Bb7 33.a5 Kf8 (33...e5!? 34.a6 Be4+/-) 34.a6+– Bc8 (34...Be4 35.Bd7+–) 35.d5 (35.d5 Ba6 36.Ba6+–) 1–0. Michel – Bluemich, 1928. (=1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 0-0 5.Be2 b6 6.0-0 c5)

7.bc5 bc5 8.c4 Nc6 9.Nc3 Rb8 10.Rb1 d6 11.d3 Bd7 12.Qd2 Qa5 13.Ba1 Rfc8 14.d4 cd4 15.ed4 Bf5 16.Rb8 Rb8 17.d5 Nd8 18.Nd4 Bd7 19.Re1 Qc5 (19...a6 20.Bd3 e5 21.Nb3=) 20.Nb3 Qb4 21.Qe3 e6 22.Rd1 (22.de6 Be6 23.Qa7 Nd7+=) 22...ed5 23.cd5 Qb6 24.Qb6 Rb6 25.Na5 Ne8 26.Nc4 Rb4 27.Rc1 f5 28.a3 Rb8 29.Bd1 Nf7 30.Na5 Rc8 31.Bb3 Kf8 32.Nc4 Ne5 33.Ne2 Nc4 34.Bg7 Kg7 35.Rc4 Rc4 36.Bc4 Nf6 37.f3 g5 38.g3 g4 39.Kf2 gf3 40.Kf3 Ng4 41.Kf4 Nh2 42.Bd3 Nf1 43.Nd4 Nd2 44.Bf5 Ba4 45.Ne6 Kg8= 46.Kg5 Nf1 47.Bd3 Ne3 48.Be4 Bb3 49.Nc7 a5 50.Kf6+= Nc4 51.Ke6 a4 52.Nb5+/- h5 53.Bd3 Ne3 54.Nc7 Bc2?? 55.Bc2+– Nc2 56.Nb5 Ne3 57.Nd6 Kf8 58.Nf5 Nc2 59.d6 Ke8 60.Ne7 Nd4 61.Kd5 Nc2?? 62.Nc6 Kd7 63.Ne5 Kd8 64.Nc4 Kd7 65.Nb6 Kd8 66.Nc4 Twofold repetition 66...Kd7 67.Kc5 Kd8 68.Ne5 Ke8 69.Kc6 Nd4+/- 70.Kd5 Nc2?? 71.Kc5 Kd8+/- 72.Nc4 Kd7 73.Kb5 Na3?? 74.Na3+– Kd6 75.Kc4 Ke5 ½–½. Gaprindashvili,Valerian (2470) – Mgeladze,Tamaz (2295), GEO–ch I Liga, 2002. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 b6 6.0-0 c5)

5.Be2 c6

6.0-0 a5 7.a3 d6 8.b5 e5 9.c4 e4 10.Ne1 d5 11.a4 (11.cd5 cd5 12.d3 Bf5=) 11...dc4+= 12.Bc4 cb5 13.Bb5 Nc6 (13...Qc7 14.d4=) 14.Nc3 Nb4 (14...Qd6 15.f3=) 15.Ba3 (15.f3!?+=) 15...Bd7 1–0. Kislov,Leonid – Karabut,Vladimir, Half Omsk, 2009.

6.0-0 a5 7.b5 cb5 8.Bb5 (8.a3 Nc6 (8...d5 9.Nc3 Ne4 10.Bb5 Bd7 11.Qb1 Qb6 12.a4 Bc3 13.Bc3 Nc3; 8...d6 9.Nc3 Nc6 10.Nb5 Bf5 11.Nfd4 Ne4 12.c4 Nc5 13.d3 Nd4) 9.Bb5 d5 10.Nc3 Bf5 11.a4 Ne4 12.h3 Nd6 13.Bd3 Rc8) 8...b6 (8...Nc6 9.c4 d5 10.Nc3 Bg4 11.cd5 Nd5 12.h3 Nc3 13.Bc3 Bc3; 8...d5 9.c4 Nc6 10.Nc3 Bg4 11.cd5 Nd5 12.h3 Nc3 13.Bc3 Bc3; 8...d6 9.a4 Nc6 10.Nc3 Bf5 11.h3 d5 12.Nh4 Be6 13.Nf3 d4; 8...Qb6 9.c4 Nc6 10.Nc3 d6 11.d3 Bf5 12.Qe2 e5 13.h3 Rfd8) 9.d3 (9.Nc3 Nc6 10.Qe2 Bb7 11.e4 d5 12.e5 Ne4 13.Nd5 Qd5) 9...Ba6 (9...Nc6 10.c4 Qc7 11.h3 Bb7 12.Nbd2 Qd6 13.d4 Nb4) 10.c4 (10.Nc3 Bb7 11.h3 Na6 12.Rb1 Qc7 13.Bc4 d5) 10...Bb5 11.cb5 d5 12.Nbd2 (12.Nc3 Nbd7 13.Nd4 Qc7) 12...Nbd7 13.d4 (13.Rc1 Nc5) 13...Qc7 (13...Ne4 14.Rc1+=) 14.Rc1 Qb7 15.Ba3 Rfe8 16.Rc6 e5 (16...Rac8!? 17.Rc8 Qc8+=) 17.Bd6+/- e4 (17...Rac8!? 18.Qc2 e4+/-) 18.Rc7+– Qc7 19.Bc7 ef3 20.Nf3 Rac8 21.Bf4 Ne4 22.Qb3 Rc4 23.Rd1 (23.h4!? Rec8+–) 23...Rec8+/- 24.Nd2?? (better is 24.Qa3 Nc3 25.Re1+=) 24...Nd2–+ 25.Rd2 a4 (better is 25...Rc1 26.Rd1 R8c3–+) 26.Qd3+/- Rc3 27.Qe2 Rc1+= 28.Rd1 Nf6 29.f3 R8c2 30.Qd3 Rd1? 31.Qd1+– Ra2 32.Qb1 Ra3 33.Qc1 Bf8 34.Qc8 h5 35.Bd6 Nh7?? 36.Ba3 1–0. Lothal (1845) – Wagner, Bernburg, 1997.

6.0-0 d6 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d6 7.0-0).

6.0-0 d6 7.d4 Bg4 8.c4 Ne4 (8...Qb6 9.Qb3=) 9.h3 Be6 10.Nbd2 Nd2 11.Qd2 d5 12.Ng5 Bf5 13.g4 (13.Rfc1+=) 13...h6 (better is 13...Bd7!?=) 14.gf5+/- hg5 15.fg6 f5 (15...fg6 16.a4+/-) 16.e4+– e6 17.e5 Bh6 18.h4 Kg7 19.Bc1 (19.hg5 Qg5 20.Qg5 Bg5+/-) 19...Kg6 20.hg5 Bg5 21.Qg5 Qg5 22.Bg5 Kg5 23.f4 Kg6 24.Kf2 Rh8 25.Rg1 Kf7 26.cd5 (26.Rg2 dc4 27.Bc4 Nd7+/-) 26...cd5 27.b5 Nd7 (27...Rh2 28.Ke1 a6 29.Rc1 ab5 30.Rc7 Kf8 A) 31.Rb7 Nc6-/+; B) 31.Bb5?! Raa2 (worse is 31...Rha2 32.Rc8 Kf7 33.Be8 Ke7 34.Rg7 Kf8 35.Rf7 Kg8 36.Rb7 Ra1 37.Kd2 R1a2 38.Kc3 R8a3 39.Rb3+–) 32.Rc8 Kf7 33.Be8 Ke7=; C) 31.Rcg7+–) 28.Rac1+/- Rac8 29.Bh5 Ke7 30.Rc8 (30.Rg7 Kd8 31.Rc8 Kc8+/-) 30...Rc8+= 31.Rg7 Kd8 32.Rg6 Ke7 (32...Nf8 33.Rg8 Kc7 34.Ke3+=) ½–½. Ferreiro Montoya,Juan Ignacio (2265) – Franke,Thomas, San Sebastian op, 1996.

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2).

5.Be2 Nc6

6.a3 a6 7.c4 e6 8.0-0 d5 9.cd5 ed5 10.Nc3 Be6 11.d3 Qd7 12.Qc2 Rac8 13.Rad1 Rfd8 14.Na4 Qe7 15.Nc5 b6? (15...Rb8 16.Na6! ba6 17.Qc6+/-) 16.Ne6 (better is 16.Nb7 Bd7 17.Nd8 Nd8 18.Bf6 Bf6 19.d4+–) 16...Qe6+= 17.d4 Ne4? (better is 17...Nb8+=) 18.Ba6+– Rb8 19.Bb5 (19.Rc1 Rd6 20.Bb5 Ne7 21.Qc7 Rdd8+–) 19...Rd6? (better is 19...Na7!? 20.Bd3 c6+/-) 20.Rc1+– Na7 21.Bd3 Rd7 22.Ne5 Be5 23.de5 Re7? 24.Be4 de4 25.Qe4 Nb5 26.Qc6 Qc6 27.Rc6 Rd8 28.Rcc1 Rd2 29.Bc3 Ra2 30.Rfd1 Ra3 31.Rd8 Kg7 32.e6?? Nc3–+ 33.Rd7 Re6 34.Kf1 Nb5 35.Rb1 Rc6 36.Rd2 Rac3 37.Rbb2 Rc1 38.Ke2 Nc3 39.Kf3 Rf6 40.Kg4 h5 41.Kh3 Ne4 42.Rdc2 Rc2 43.Rc2 Nf2 44.Kg3 Ne4 45.Kh3 c6 46.g3 g5 47.Kg2 g4 48.Kg1 Rd6 49.Kg2 Rd2 50.Rd2 Nd2 51.Kf2 Nc4 52.Ke2 Kf6 53.Kd3 Ne5 54.Ke4 Nf3 55.h4 c5 56.bc5 bc5 57.Kd5 Kf5 58.Kc5 Ke4 59.Kd6 Ke3 60.Ke7 Kf2 61.Kf7 Kg3 62.Kg6 Kh4 63.Kf5 g3 64.Kf4 g2 65.Kf3 0–1. Fournier,Frederic (2010) – danger (2055), Echecs21, 2003.

6.a3 d6 7.0-0 h6 (7...a6 8.Nc3=) 8.d4 Nd7 (8...Be6 9.c4 d5 10.cd5 Nd5 11.Nbd2+=) 9.c4+= e5 10.Nc3 (10.d5 Ne7+=) 10...f5 (10...ed4 11.ed4 Re8 12.Re1+=) 11.d5 Ne7 12.h3 a6 13.Re1 e4 (13...Qe8 14.Qb3+=) 14.Nd4 Ne5 15.Qb3 g5 (15...Qe8 16.c5 Rf6 17.Rad1+–) 16.Rad1 N7g6 17.c5 Qf6 (17...Rf6 18.Rd2+–) 18.Ne6+– Be6 (18...Rf7 19.Rc1+–) 19.de6 Ne7 (19...dc5 20.e7 Rf7+–) 20.cd6 cd6 21.Rd6 Kh7 (21...Rfd8 22.Red1 Qf8 23.R1d2+–) 22.Nd5 Nd5 23.Qd5 (23.Rd5?! Qe6 24.Red1 Kh8+–) 23...Nf3 (23...Rae8+–) 24.gf3 Qb2 25.e7 Rfe8 (25...Qa3 26.ef8Q Rf8 (worse 26...Bf8 27.Qf5 Kh8 28.Qe5 Kg8 29.Bc4 Kh7 30.Rd7 Kg6 31.Qe4 Kh5 32.Bf7) 27.Qb7 Qc3+–) 26.Qf5 Kh8 27.Qe4 Qa3 (27...Qa2 28.Re6 Qa3+–) 28.Bd3 (28.Bd3 Qd3 29.Rd3+–) 1–0. Pierre – Dersuum, internet, 2020.

6.b5 Na5 7.0-0 d6 8.a4 Bf5 9.d3 a6 10.c4 ab5 11.cb5 c6 12.bc6 bc6 13.Nbd2 Rb8 14.Bc3 Nd5 15.Ba5 Qa5 16.Nc4 Qc5 17.Rc1 Qa7 18.e4 Nc3 19.Qd2 Be6 20.a5 Bc4 21.dc4 Qa5 22.Ra1 Qb4 23.Rae1 Ne4 24.Qb4 Rb4 25.Rb1 Rb1 26.Rb1 Nc3 27.Re1 Ne2 28.Re2 Rb8 29.g3 Rb4 30.Nd2 Rb2 31.Kf1 Bc3 32.Ne4 Re2 33.Ke2 Bd4 34.f4 c5 35.Kd3 f5 36.Nd2 Kf7 37.Nf3 e5 38.fe5 de5 39.Nd2 e4 40.Ke2 Ke6 41.h3 g5 42.Nb3 h5 43.Nd2 Ke5 44.Nb3 f4 45.gf4 gf4 46.Nd2 f3 47.Kf1 Kf4 48.Nb3 e3 49.Nd4 cd4 50.h4 d3 51.c5 Ke5 52.c6 Kd6 53.c7 Kc7 54.Ke1 Kd6 55.Kf1 d2 56.Kg1 d1Q 57.Kh2 Qe2 58.Kh1 f2 59.Kh2 f1Q 60.Kg3 Qff3 0–1. Phomopsis – tupik2007, lichess.org, 2018.

6.b5 Na5 7.0-0 d6 8.c4 d5 (8...a6!?=) 9.cd5+= Qd5 (9...Nd5 10.Bg7 Kg7 11.Nc3+=) 10.Nc3 (10.Qa4 b6 11.Rc1 a6 12.Rc7 ab5 13.Bb5 Bg4+/-) 10...Qd7 11.d4 Nd5 (better is 11...c6!?+=) 12.Qa4+– b6 13.Nd5 Qd5 14.Rfc1 Bd7 15.Ne5 (15.Rc7 Rfc8 16.Rac1 Rc7 17.Rc7 a6+/-) 15...a6 (15...Be5!? 16.de5 Rac8+/-) 16.Bf3+– (16.Rc7?! Bb5 17.Bb5 ab5+/-; 16.Nd7?! Qd7 17.Qc2 Rfc8 18.ba6 c5 19.dc5 Bb2 20.Qb2 bc5+/-) 16...Qe6 17.Ba8 Bb5 18.Qb4 Ra8 19.Rc7 Be5 20.de5 Nc4 (20...Nc6 21.Qb3 Qb3 22.ab3 Rd8+–) 21.Re7 Qg4 22.e6! fe6 (22...fe6 23.Rg7) 23.Rg7 Kh8 24.Ra7 (24.Ra7 e5 25.Ra8 Qc8 26.Rc8 Kg7 27.Qf8) 1–0. Gwda – Terezja, internet, 2017.

6.b5 Nb4 7.0-0=.

6.b5 Nb4 7.a3 Nbd5 8.c4 Nb6 9.a4 a5 10.ba6 Ra6 11.c5 Nbd5 12.Ba6 ba6 13.a5 Re8 14.Nc3 e5 15.Nd5 Nd5 16.0-0 e4 17.Bg7 ef3 18.Qf3 Kg7 19.Qd5 c6 20.Qd4 Kg8 21.Qc3 d5 22.Rab1 Qg5 23.f4 Qe7 24.Rb6 Qe6 25.Qe5 Qe5 26.fe5 Re5 27.Rc6 Bb7 28.Rc7 Ba8 29.Rf6 d4 30.Rc8 Kg7 31.Rd6 Bb7 32.Rb6 Bc8 33.ed4 Re2 34.Rd6 Rd2 35.h3 Ra2 36.Rc6 Ra5 37.Rc8 Ra1 38.Kf2 Rd1 39.Ke3 a5 40.Ra8 Re1 41.Kd3 Rd1 42.Kc4 Rc1 43.Kd5 Kf6 44.Ra5 Rc2 45.Ra6 Kg7 46.c6 Rg2 47.c7 Rg5 48.Kd6 Rg3 49.c8Q h5 50.Qd7 Rd3 51.d5 Kh6 52.Qf7 1–0. axtur777 – pery1987, lichess.org, 2019.

6.b5 Nb4 7.c4 a6 8.a3 ab5 9.ab4 Ra1 10.Ba1 b6 (10...bc4 11.Bc4 d5+-) 11.cb5 Bb7 12.Nc3 (12.0-0 e6+-) 12...c6 (12...e6 13.0-0+-) 13.0-0 cb5 14.d4 Qc7 15.Qd2 e6 (15...Qd6 16.Nb5 Qd5 17.Rc1+-) 16.Rc1 (16.Nb5 Qb8+-) 16...Qd8 (16...Rc8 17.Bb2+-) 17.Nb5 Qe7 18.Rc7 Bc6 (18...Ra8 19.Bb2 Ne4 20.Qc2+- (20.Rb7?! Nd2 21.Nd2 Qd8+/-)) 19.Na7 (19.Ne5 Bb5 20.Bb5 Ra8+-) 19...Ra8 (19...Qd6 20.Rc8+-) 20.Bb2 (20.Nc6 Qd6 21.Qc1 dc6 22.Rc6 Qb4+-) 20...Ne8 (20...Qd8 21.Rc6 dc6 22.Nc6 Qc7+-) 21.Nc6 Qf6 (21...Qd6 22.Ra7 Qc6+-) 22.Rd7 Bf8 23.d5 Qf5 24.Bd3 Qh5 25.Qc3 (better 25.de6 f6 26.e7 b5+-) 25...ed5 26.Qh8 1-0. Lance5500 (2490) – PaulVandernet, lichess.org, 2018.

6.b5 Nb4 7.c4 d5 (7...e5 8.Be5 g5+–) 8.a3 dc4 9.ab4 Nd5 (9...Qd6 10.Bc4 Qb4 11.Qb3 Qb3 12.Bb3+–) 10.Bg7 Kg7 11.Bc4 Nb4 12.Qb3 Bg4 (12...Qd6+–) 13.Qb4 1–0. Janek – Bzavis, internet free game, 2017.

6.b5 Nb8 7.c4 a6 8.a4 ab5 9.cb5 d6 10.0-0 Ne4 11.Bg7 Kg7 12.Qb3 Be6 13.Qb2 Kg8 14.Nc3 Nc3 15.Qc3 c5 16.bc6 bc6 17.Rfb1 Qa5 18.Rb7 Qc3 19.dc3 Nd7 20.Nd4 Nc5 21.Re7 Ra4 22.Ra4 Na4 23.c4 Nc3 24.Bd3 c5 25.Ne6 fe6 26.Re6 d5 27.cd5 Nd5 28.Bc4 Ra8 29.g3 Nb4 30.Re8 Kg7 31.Ra8 1–0. Abdullaevich – sergluck (1635), lichess.org, 2018.

6.b5 Nb8 7.c4 c6 8.0-0 d5 9.a4 a6 (9...Nbd7 10.d4=) 10.Nc3 Be6 (10...Nbd7 11.d4+=) 11.Nd4+/- Bd7 (11...Qd7 12.c5+/-) 12.cd5 Nd5 13.Nd5 cd5 14.f4 ab5 15.ab5 Ra1 16.Qa1 Qb6 (16...Bc8 17.Bf3+/-) 17.Nf5! Bb2? (17...Bf5 18.Bg7 Discovered attack; 17...gf5 18.Bg7 Discovered attack) 18.Ne7+– Kg7 19.Qb2 Kh6?? (19...d4 20.Nd5 Qc5+–) 20.Nd5 Qd6 (20...Qe6 21.Nf6 Rd8 22.Ng4 Qg4 23.Bg4 Bg4+–) 21.Nf6 Bf5 22.g4 Be6 (22...g5 23.gf5 gf4 24.Rf4 Qd4 25.Qd4 Rc8 26.Rh4 Kg7 27.Rh7 Kf8 28.Qd6) 23.Ng8! Rg8 (23...Rg8 24.g5) 24.g5 1–0. Barcarola (1680) – tjnpv, internet free game, 2018.

6.c3 d5 7.0-0=.

6.c3 d6 7.0-0 (7.d4 a6=) 7...e5 (7...Bg4 8.d4=) 8.Ne1 (8.d4 e4 9.Nfd2 Be6=) 8...h5 (8...Be6 9.d3=) 9.d3 (9.b5 Ne7=) 9...Bg4 (9...h4 10.h3=) 10.Nd2 (10.Bg4 Ng4 11.Nf3 d5+=) 10...Ne7 (10...Qd7 11.Bg4 Ng4 12.Nef3+=) 11.Ndf3 (11.e4 a5+=) 11...Nf5 (11...a5 12.b5=) 12.h3+= Bf3 13.Nf3 (worse is 13.gf3 a5+=) 13...Nh4?? (better is 13...e4 14.Nd4 Nd4 15.cd4 d5+=) 14.Nh4+– e4 (14...a5 15.b5+–) 15.de4 Ne4 (15...Qe7 16.Nf3+–) 16.Ng6! f6 (16...fg6 17.Qd5 Double attack) 17.Qd5 Kh7 (17...Rf7 18.Qe4 d5 19.Qf5+–) 18.Nf8 Qf8 19.Qe4 Kg8 20.Qb7 c5 21.Qd5 Kh8 22.Qh5 Kg8 23.Bc4 d5 24.Bd5 Qf7 25.Qf7 Kh7 26.Be4 Kh6 (26...f5 27.Bf5 Kh8 28.c4 Bb2 29.Qh7) 27.Qg6 1–0. Intruder – bft2345g, internet free game, 2018.

5.Be2 d5

(--> 4.e3 d5 5.Be2 0-0).

6.0-0 c6 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d5 7.0-0).

5.Be2 Nd5

6.Bg7 Kg7 7.b5 b6 8.c4 Nf6 9.Nc3 Bb7 10.Rg1 (10.0-0 a6+=) 10...d6 11.g4 Ne4 12.Qc2 Nc3 13.Qc3 Kg8 14.h4 Nd7 15.h5 Ne5? (better is 15...Nf6!?=) 16.Ne5+/- de5 17.Qe5 f6 (17...a6 18.d4+/-) 18.Qc3 (18.Qe6 Kg7+–) 18...Qd6 19.Bd3 (19.hg6 hg6 20.d4 c5+–) 19...Qh2 20.Ke2 g5 21.c5 Qh3 (better is 21...e6+/-) 22.Qc4 Kh8 (22...Rf7 23.c6 Bc8 24.Bg6+–) 23.c6 Bc8 24.Qe4 Rf7 25.Rg3 Qh2 26.Rh1 Bg4 27.Rg4 Qe5 (27...Qd6+–) 28.Qe5 fe5 29.Rg5 Rg8 (29...Raf8 30.Rh2 Rg7 31.Re5+–) 30.Rg8 Kg8 31.Bc4 1–0. Speedy – wernt, internet, 2017.

5.Be2 d6

6.0-0 Na6 7.b5 Nc5 8.a4 b6 9.d3 Bb7 10.Nbd2 c6 11.c4 cb5 12.ab5 a6 13.ba6 Na6 14.e4 Qc7 15.Nd4 Rfd8 16.Nb5 Qc6 (16...Qd7 17.Rb1+=) 17.Bf3 e5 18.Qc2 Nc7 19.Nc3 (19.Nc7 Qc7 20.Qb3 Nd7+=) 19...Ne6 (19...b5 20.Qb3 bc4 21.dc4+=) 20.Nd5+= Rd7 21.Qb3 Nd4?? 22.Bd4+– ed4 23.Nf6 Bf6 24.e5! d5 25.Bd5 Rd5 26.cd5 Qc3 27.Ra8 Ba8 28.ef6 Qd3 29.Qa4 (29.Qa4 Qf1 30.Kf1 Bc6 31.dc6 h6 32.Qa8 Kh7 33.Qf8 b5 34.Qg7#) 1–0. Mauron,Regis (1630) – Dubos,Jean Luc, Tournoi de Noel–4, 2001.

6.0-0 Bd7 7.d4 a5 8.b5 c6 9.a4 cb5 10.ab5 Qb6 11.c4 Ne4 12.Nbd2 Nd2 13.Nd2 e5 14.de5 de5 15.Qc2 Be6 16.Rfc1 Nd7 17.Qe4 Nc5 18.Qb1 Bf5 19.e4 Be6 20.Nf3 Bg4 21.h3 Bf3 22.Bf3 Rac8 23.Bc3 a4 24.Bb4 Nb3 25.Bf8 Kf8 26.Ra4 Nc1 27.Qc1 Qb5 28.cb5 Rc1 29.Kh2 Rc2 30.Kg1 Bh6 31.Kf1 Bd2 32.Bd1 Rb2 33.Ra8 Kg7 34.Ba4 b6 35.Ra6 Ba5 36.Ra8 Rb4 37.Bc2 Rb5 38.Ra7 Rb2 39.Bd3 Rb4 40.Rb7 Rd4 41.Bc2 Rc4 42.Bb3 Rc1 43.Ke2 Re1 44.Kf3 Rb1 45.Bf7 Kh6 46.Bg8 Be1 47.Rh7 Kg5 48.g3 Rb2 49.h4 Kf6 50.Rf7 Ke6 51.Rg7 Kd6 52.Rg6 Kc5 53.Rg7 Rf2 54.Kg4 Rg2 55.Rc7 Kd4 56.Kf5 Rg3 57.Rd7 Kc5 58.Ke5 Bc3 59.Kf4 Rg1 60.Be6 Rf1 61.Ke3 Re1 62.Kf2 b5 63.Rd5 Kc6 64.Rd3 b4 65.Bd5 Kc5 66.Rc3 bc3 67.Ke1 Kb4 68.Kd1 Kc5 69.Kc2 Kd4 70.h5 Ke5 71.h6 Kf6 72.Bg8 Kg6 73.h7 Kg7 74.Kc3 Kh8 75.Kd4 Kg7 76.Kd5 Kf6 77.Kd6 Kg7 78.e5 Kf8 79.e6 Ke8 80.Bf7 Kf8 81.h8Q 1–0. Orang4Utan (1865) – vokuhila (1925), lichess.org, 2020.

6.0-0 Re8 7.d4 e5 8.Nbd2 e4 9.Ne1 d5 10.c4 c6 11.a4 h5 12.Qb3 a6 13.b5 Ng4 14.h3 Bf6 15.Nc2 Kg7 16.cd5 cd5 17.Nb4 Rh8 18.Nd5 Be6 19.Bc4 Qd6 20.Nf6 Qh2 0–1. Orang4Utan (1905) – thebluestick (1910), lichess.org, 2020.

6.0-0 Bf5 7.a3 e5 8.d3 (8.d4 e4 9.Nfd2 a5=) 8...Nbd7 9.e4 Be6 10.Ng5 Re8 11.Ne6 Re6 12.Nd2 Re8 13.g3 c5 (13...Nb6 14.c4=) 14.c3 cb4 15.ab4 a6 16.Nc4 Nb6 17.Na5 Qd7 18.Bf3 Rab8 19.Re1 Na8 20.Bg2 Nc7 21.d4 Nb5 22.de5 de5 23.Qd7 Nd7 24.Red1 Nb6 25.c4 Na7 26.c5 Na8 27.Rd7+– (27.Rd7 b6 28.Ra7 ba5 29.Ra5 Rb4 30.Ba1 Rb1 31.Bf1+–) 1–0. Woelfelschneider,Peter – Voss, 2009.

6.0-0 Bf5 7.d4 Nbd7 8.Nbd2 a5 9.b5 Nb6 10.a4 c5 11.h3 cd4 12.ed4 Rc8 13.c3 (13.c4 Qc7=) 13...d5 14.Ne5 Nfd7 15.f4 Ne5 16.fe5 Bh6 17.Nb3 Be3 18.Kh2 Nc4 19.Bc4 dc4 (19...Rc4 20.Qf3 Bh6 21.Bc1=) 20.Nd2 f6 21.Nf3 (better is 21.Nc4!? Bg5 22.Na3+=) 21...Bd3 22.Re1 Bf4 (22...Bf2 23.Rh1+=) 23.g3= Bh6 24.e6 Qd5 25.Ba3 f5?? (better is 25...Be4 26.Nd2 Bd2 27.Qd2 Qe6+=) 26.Be7+– Rfe8 (better is 26...Be4 27.Bf8 Rf8+–) 27.Re5 (27.Re5 Qe5 28.Ne5 (28.de5?! Re7 29.Qg1 Re6+/-) 28...Re7 29.Nd3 cd3 30.Qb3+–) 1–0. ekosachro (2410) – croach (2375), net–chess.com, 2014.

6.a3 a5 7.0-0 ab4 8.ab4 Ra1 9.Ba1 Nbd7 10.c4 c6 11.d4 Re8 12.Nc3 Qb6 13.Qb1 e5 14.Rc1 (14.de5 Ne5 15.Ne5 de5+= (15...Re5? 16.Na4 Qc7 17.Be5 de5 18.e4+-)) 14...ed4= 15.ed4 Qc7 16.Qb3 b6 (16...Nb6 17.Bb2=) 17.Bf1 (17.d5 cd5 18.cd5 Qd8+=) 17...Bb7 (17...Re7 18.Bb2+=) 18.Bb2 Bh6 (18...d5 19.b5=) 19.Ra1+= Ra8 (19...Bg7 20.b5+=) 20.Ra8 Ba8 21.b5 c5 22.Nd1 (22.d5 Bg7+=) 22...Ne4 (22...cd4 23.Nd4 Bg7 24.Be2=) 23.Ne3 (23.d5 f5+/-) 23...Bg7 (23...cd4 24.Nd4 Qc5 25.Be2+=) 24.d5+/- Ne5 25.Ne5 Be5 (25...de5 26.Ng4+/-) 26.Be5 (26.Ng4 Bb2 27.Qb2 h5 28.Nf6 Nf6 29.Qf6 Bb7+/-) 26...de5 27.Ng4 f5 28.Nh6 (28.Qe3!?+/-) 28...Kg7+= 29.Qe3 Qa7? (better 29...Nd6 30.Qg5 Bb7=) 30.f3+- Nd6 (30...Nf6 31.Qe5 Qa3 32.h4 Kh6 33.Qf6 Qe3 34.Kh2 Qf4 35.Kh3+-) 31.Qe5 Kh6 32.Qd6 Qa3 (32...Qa1 33.h3 (33.Qb6? Qd4 34.Kh1 Qf2-+) 33...Qd4 34.Kh2+-) 33.Qf4 (33.Qb6 Qe3 34.Kh1 Qf2-+) 33...Kg7 34.h3 (34.h3 Qa7 35.Qe5 Kf7 36.Qh8+-) 1-0. Duvel (2620) - Chechess1 (2080), Rated Bullet game, lichess.org, 2014.

6.a3 a5 7.b5 c6 8.c4 e5 9.d3 Bg4 10.0-0 Nbd7 11.Nbd2 Nc5 12.Nb3 Nb3 13.Qb3 e4 14.de4 Ne4 15.Bg7 Kg7 16.Qc2 f5 (16...Re8 17.Nd4 Be2 18.Qe2+=) 17.bc6 bc6 18.Nd4 Be2?? (18...Qe8 19.f3 Nf6 20.Qc3+– (20.fg4 Qe3 21.Kh1 Qd4+=)) 19.Qe2?? (better is 19.Ne6 Kh6 20.Nd8 (20.Qe2?! Qf6 21.Nf8 Rf8+–) 20...Bf1 21.Ne6+– (21.Rf1?! Rfd8 22.f3 Nc5+–; 21.Kf1?! Rfd8 22.Rd1 a4+–)) 19...c5?? (better is 19...Qd7+=) 20.Ne6+– Kg8 21.Nd8 Rad8 22.Qc2 d5 23.cd5 Rd5 24.Rfd1 Rd1 25.Rd1 Kg7 26.Qb2 Kh6 27.h3 c4 28.Rc1 Rc8 29.Rc3! Nc3 30.Qc3 Kg5 31.f4 Kh4 32.Kf2 h6 33.Kf3 a4 34.Qf6 Kh5 35.g4 fg4 36.hg4 1–0. Fournier,Frederic – eruizu (1680), Active, 2006.

6.a3 a6 7.c4 Bf5 8.d3 c5 9.e4 Bg4 10.h3 Bf3 11.Bf3 Nc6 12.0-0 e5 (12...cb4 13.ab4 Nb4 14.Qb3=+) 13.Qb3 Nd4 14.Bd4 cd4 15.a4 Rb8 16.Na3 b6 17.Rfc1 Rc8 18.Rc2 Bh6 19.Nb1 Kh8 (19...Qd7 20.a5 b5 21.Na3+=) 20.Raa2 Ng8 21.a5 (better 21.Bg4 Rc7 22.a5=) 21...b5 (better 21...Rb8!?=) 22.cb5+– White launches an attack 22...ab5 White gets strong play along the open c–file 23.Qd5 Qd7 24.Na3 Rb8 (better 24...Rc2!? 25.Rc2 Rc8+–) 25.Qc6+– Rfd8 26.Bg4 (26.Qd7 Rd7 27.Bg4 Ra7+–) 26...Qc6 27.Rc6 Ne7 (27...d5!? 28.ed5 Ne7+–) 28.Rc7+– Bf8 29.Rb2 (29.a6 Rb6 30.Nc2 Ra8+–) 29...f5 (29...d5 30.a6 Ra8 31.a7+–) 30.Bf3 (30.ef5 gf5 31.Bf3 d5+–) 30...Rdc8 31.Rbc2 Rc7 (31...fe4 32.Be4 d5 33.Bf3+–) 32.Rc7+– Kg8? (better 32...d5 33.ed5 Nc8+–) 33.ef5 gf5 34.Bb7 Kf7 (34...e4 35.de4 d3 36.Nb5+–) 35.Nb5 (35.a6 Rd8 36.a7 Kg8+–) 35...Ke6 (35...e4 36.de4 d3 37.ef5 d2+–) 36.a6 Nd5 (36...Re8 37.a7 Bh6 38.Rc8 Rc8 39.Bc8 Nc8 40.a8Q+–) 37.Bd5 (better 37.a7 Rd8 38.Rc8 Nb6 39.Rd8 e4 40.Rf8 Kd7 41.de4 fe4+–) 37...Kd5 38.a7 Ra8 39.Rb7 (39.Rb7 e4 40.Rb8 Ra7 41.Na7 ed3 42.Kf1+– (42.Rf8 d2=+); 39.Rc1 Ra7 40.Na7 Be7+–) 1–0. petrobbo (2030) – spanishdragonkid (1955), ChessWorld.net, 2019.

6.a3 Na6 7.0-0 c5 8.b5 (8.Ba6 ba6 9.Qe2 Rb8=) 8...Nc7 9.a4 b6 10.d4 a6 11.c4 ab5 12.ab5 cd4 (12...Ra1 13.Ba1 cd4 14.ed4= (worse 14.Qd4 Nfe8 15.Qb6 Ba1=+; 14.Nd4?! Bb7=)) 13.Ra8+= Na8 14.ed4 Bg4 15.h3 Bf3 (15...Bf5 16.Nc3+=) 16.Bf3 (worse 16.gf3 Qd7-/+) 16...Nc7 17.d5 e6 (17...Nd7 18.Bg7 Kg7 19.Qd4 Kg8 20.Nd2+/-) 18.de6 Ne6 19.Nd2 Nc5 20.Re1 Re8 21.Re8 Ne8 22.Nb3?? (better 22.Bg7 Kg7 23.Ne4+/-) 22...Bb2-+ 23.Nc5 bc5 24.Bd5 (24.Bc6 Nf6-+) 24...Bd4 25.Qf3 (25.Qa4 Qg5 26.Qc2 Nf6-+) 25...Qe7 (25...Nf6 26.Bc6-+) 26.g3 (26.b6 Qe1 27.Kh2 Nf6-+ (27...Qf2?? 28.Qf2 Bf2 29.b7+-)) 26...Nf6 27.Kg2 (27.b6 Nd5 28.Qd5 Qe1 29.Kh2 Qf2 30.Qg2 Qe3-+) 27...Nd5 28.Qd5 (28.cd5 Qe5 29.b6-+) 28...Qe6 (28...Qe2 29.Qf3 Qc4 30.b6-+) 29.Qf3 (better 29.Qe6 fe6 30.b6+-) 29...Kg7 (29...Qc4 30.b6-+) 30.b6 (30.Qd3-+) 30...Qc8 (better 30...Qc4 31.b7 Qb5-+) 31.b7-/+ Qb8 (31...Qe8 32.Kf1 Qb8 33.Ke2-+) 32.Qc6 Bf6?? (better 32...d5 33.cd5 Be5-/+) 33.Qc8+- Qa7 34.b8Q Qa1 (34...Qb8 35.Qb8 Be7+-) 35.Qf8 1-0. sezwho (2020) - tuskerking (2020), Rated Bullet game, lichess.org, 2014.

6.a3 b6 7.d4 Bb7 8.Nbd2 Nbd7 9.0-0 c5 10.dc5 dc5 11.b5 Qc7 12.c4 Rfd8 13.Qc2 Nf8 14.Rad1 Rd7 (14...a6 15.Be5 Qc8 16.Qb3=) 15.Rfe1 Rad8 16.Nf1 Ne6 17.Qc1 h5 (17...a6 18.Be5 Qc8 19.ba6=) 18.Qb1 (18.Be5 Qc8+=) 18...Nh7 (18...Be4 19.Rd7 Rd7 20.Qc1+=) 19.Qa1 Bb2 20.Qb2 Neg5 21.N1d2 Nf3 22.Nf3 (22.gf3 Ng5 23.Qc2 Nh3 24.Kg2 Nf2-+; 22.Bf3? Bf3 23.gf3 Ng5-+) 22...Rd1 23.Rd1 Rd1 24.Bd1 Bf3 25.Bf3 Nf6 26.h3 Qd6 27.Qc2 Kg7 28.a4 Qe5 29.g3 Qa1 30.Kg2 h4 31.g4 Nh7 32.Bd5 e6 33.Be4 Ng5 34.Bd3 (34.Bc6 e5+=) 34...f5 (better 34...Nh3 35.Qb1 Qf6=+) 35.f4?? (35.gf5 ef5 36.f4 Ne6=) 35...Nf7?? (better 35...Nh3 36.Qb1 Qb1 37.Bb1 fg4-+) 36.gf5= gf5 37.Qe2 (37.Qf2 Qa4 38.Qh4 Qb3 39.Qg3 Kf8=) 37...Kf6 (37...Qa4 38.Qb2 Kf8 39.Kf2=+) 38.Kh2 (better 38.Qf2!?+=) 38...Qa4=+ 39.Qb2 Ke7 40.Be2 a6 41.Bf3 (41.ba6 Qa6 42.Kg1 Qa5-/+) 41...ab5 42.cb5 Qb4 43.Qe2 (43.Qf2 c4-+) 43...c4 44.Bc6?? (44.Kg1 Qb5 45.Qe1 Kf8-+) 44...Qc5 (better 44...c3 45.Bg2 Qb2-+) 45.Qc2? (45.Qe1 c3 46.Kg1-+) 45...c3 46.Qe2 (46.e4-+) 46...c2 47.Be4 c1Q (better 47...fe4 48.Qe1-+) 48.Bc2 Q5e3 49.Qe3 Qe3 50.Kg2 Qd2 51.Kf1 (51.Kg1 Qc2 52.Kf1 e5 53.fe5 f4 54.e6 f3 55.ef7 Qe2 56.Kg1 Qg2) 51...Qc2 52.Ke1 (52.Kg1 e5 53.fe5 f4 54.Kf1 f3 55.e6 Qe2 56.Kg1 Qg2) 52...Qd3 (52...Ne5 53.Kf1 Nd3 54.Kg1 Nf4 55.Kf1 Qe2 56.Kg1 Qg2) 53.Kf2 Qe3! (53...Qe3 54.Ke3 Nd6-+) 0-1. dagon1917 (2320) - zumpili (2420), Rated Bullet game, lichess.org, 2021.

6.a3 Bf5 7.0-0=.

6.a4 e5 7.0-0 Nc6 8.b5 Ne7 9.Nc3 (9.d4 e4 10.Nfd2 Re8+=) 9...c6 10.e4 cb5 (10...d5 11.ed5 e4 12.Nd4=) 11.ab5 Qc7 (11...d5 12.Ne5 Qc7 13.f4=) 12.d4+= Bg4 13.Qd2 Bf3 (13...Nh5 14.h3 Bf3 15.Bf3+= (worse is 15.gf3 Nf4-/+)) 14.Bf3 (worse is 14.gf3 ed4 15.Qd4 Rfc8=) 14...Rac8 (better is 14...Nd7!?+=) 15.de5+– de5 16.Ra7 Qb6 (16...Rcd8 17.Qg5+–) 17.Rfa1 (better is 17.Qe3 Qe3 18.fe3+–) 17...Nh5? (better is 17...h6+–) 18.Bh5 gh5 19.Qg5 Ng6 20.Qh5 Nf4 21.Qf3 f5 22.ef5 Rf5 23.Rb7 Qg6 24.Ra6 Rf6 25.Rg7! Qg7 26.Rf6 Qf6 27.Qg4 Kf7 28.Qc8 e4 29.Qd7 Kg6 30.Qe8 Kg7 31.Nd1 Ne2 32.Kf1 Nd4 33.Qe4 (33.Qe4 Kf7 34.Bd4+–; 33.Ne3 Qf8 34.Bd4 Kg8 35.Qe5 Qh6 36.Bc5 Qd6 37.Qd6 Kf7 38.Qe7 Kg6 39.Qe6 Kg5 40.Qf5 Kh4 41.Qg4) 1–0. market (2255) – ajito, GameColony.com, 2002.

6.d3 Na6 7.b5 Nc5 8.Nc3+=.

6.d3 Nc6 7.b5 Na5 8.0-0 c6 9.c4 cb5 10.cb5 b6 11.Nbd2 Bb7 12.Qa4 Rc8 13.Nc4 Nc4 14.dc4 Nd7 15.Qa7 Bf3 16.Bf3 Rc4 17.Bc6 Bb2 18.Rab1 Nc5 19.Rb2 Ra4 20.Qa4 Na4 21.Rb4 Nc5 22.a4 Qc7 23.h3 Qa7 24.Ra1 Rc8 25.Kh2 e6 26.Kg3 d5 27.a5 Rc6 28.bc6 Qc7 29.f4 ba5 30.Rb7 Qc6 31.Rb8 Kg7 32.Ra5 Ne4 33.Kh2 Qc3 34.Raa8 Qe3 35.Rg8 Kf6 36.Raf8 Qf4 37.Kh1 Ng3 38.Kg1 h5 39.Rh8 h4 40.Rh7 Qf1 0–1. Adjailton (1865) – Hias2406 (1785), lichess.org, 2019.

6.d3 Bd7 7.0-0 c5 8.bc5 dc5 9.Nbd2 Nc6 10.a3 Qc7 11.h3 Rad8 12.c4 Rfe8 13.Qb3 Qc8 14.Rab1 b6 15.Ne5 Na5 16.Qa2 Bh3 17.gh3 Qh3 18.Ne4 Ne4 19.de4 Rd6 20.Bg4 Qh4 21.Kg2 Be5 22.Be5 Qg4 23.Bg3 h5 24.Kh2 Qe4 25.Bd6 ed6 26.Rbd1 Qe5 27.Kg2 Qe4 28.Kg1 Nc4 29.a4 Re5 0–1. Phomopsis (1705) – obwohl (1665), lichess.org, 2020.

6.d3 e5 7.Nbd2 b5 8.0-0 a6 9.c4 c6 10.cb5 ab5 11.Qc2 Bf5 12.h3 Nd5 13.a3 Re8 14.e4 Nf4 15.Nb3 Bd7 16.Rfc1 Na6 17.Bf1 Qe7 18.Na5 Rac8 19.d4 ed4 20.Nd4 Qe4 21.Qe4 Re4 22.Bd3 Nd3 23.Rc2 Nb2 24.Rc6 Bc6 25.Ne6 Re6 26.Nc4 Nc4 27.Re1 Re1 28.Kh2 Be5 29.g3 Na3 30.h4 Nb4 31.Kh3 Re2 32.Kg4 Rf2 33.h5 Bf3 34.Kh4 Rc4 35.Kh3 Bg3 36.Kg3 gh5 37.Kf2 Bb7 38.Ke3 Na6 39.Kd3 b4 40.Kd2 b3 41.Kd1 b2 42.Kd2 b1Q 43.Ke3 Qb3 44.Kd2 Rc2 45.Kd1 Qb1 0–1. Phomopsis (1720) – Morphyguy (1730), lichess.org, 2019.

6.d3 e5 7.Nbd2 Nbd7 8.0-0 b6 9.c4 Bb7 10.Qc2 c5 11.bc5 bc5 12.Ne4 Ne4 13.de4 Nf6 14.Nd2 Qe7 15.Bc3 h5 16.Rab1 Bc6 17.Bd3 Rae8 18.Qd1 Qd7 19.Bc2 Rb8 20.Qe2 Rb6 21.f3 Rfb8 22.Nb3 Bh6 23.Rfd1 Qe7 24.Be1 Ne8 25.h4 Ng7 26.g3 Rf8 27.Na5 Ba8 28.Rb3 f5 29.Rdb1 Rb3 30.Rb3 f4 31.ef4 ef4 32.e5 Nf5 33.Bf5 gf5 34.Bd2 Kh7 0–1. Novopashin,AA – Vasiukov,EA, 1981. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6)

6.d4 a6 7.0-0 Nbd7 8.c4 e5 9.Qc2 ed4 10.Bd4 c5 11.Bc3 cb4 12.Bb4 Nc5 13.Nd4 Qc7 14.Nc3 Bg4 (14...Be6 15.Rfb1=) 15.f3 (15.Bg4!? Ng4 16.Nd5+=) 15...Bd7 16.Rfd1 Rfe8 17.e4 Rac8 (17...Qb6 18.Bc5 Qc5 19.Qd2=+) 18.Rab1= Nh5 (18...Bh6 19.Ba3=) 19.Nd5+= Qd8 20.Qd2 Qh4 21.Bf1 Bc6 (better 21...Nf6!? 22.Nb6 Rc7+=) 22.g3+– (22.Nc6?! bc6 23.Nb6 Rb8 24.Bc5 dc5+=) 22...Qd8 23.Ba5 (better 23.Nc6!? Rc6 24.Bc5 dc5 25.Rb7 Bd4 26.Kh1+–) 23...Bd4= 24.Kg2 Be3 (24...Ne4!? 25.fe4 b6 26.Qd4 ba5=) 25.Ne3+= Qg5 26.Nd5 Qd2 27.Rd2 Ng7? (better 27...f5 28.ef5 gf5+–) 28.Nf6+– Kf8 29.Ne8 Ne8 30.Kf2 (30.Re1 g5+–) 30...Ke7 (30...Be4 31.fe4 Ne4 32.Ke3 Nd2 33.Bd2+–) 31.Rbd1 (31.Bb4 f6+–) 31...Ba4 32.Re1 f6 33.Bh3 (33.Rb1 Ng7+–) 33...Rb8 (33...Rc6 34.Rb1+–) 34.Bb6 Nd7 (34...Bd7 35.Bf1+–) 35.Bd7 Bd7 36.Rd4 (36.c5 dc5 37.e5 Bf5+–) 36...Rc8 37.Red1 (37.Rc1 Rc6 38.c5 Ke6+–) 37...Be6 38.Rc1 Rc6 39.c5 Ba2 (39...Kf7+–) 40.cd6 Rd6 41.Bc5 Ke6 42.Bd6 Nd6 43.Rb4 b5 44.Rc6 a5 (44...Bc4 45.Rb1 Ke7+–) 45.Rd4 (45.Rd4 Ke7 46.Rcd6+–) 1–0. Silva,Janderson Rossi Da (1850) – Boghi,Victor Almeida (1670), 4th Floripa Open, 2018.

6.d4 a6 7.a4 b6 8.c3 Bb7 9.Na3 Nbd7 10.0-0 c5 11.b5 cd4 12.cd4 a5 13.Bd3 Rc8 14.Nd2 Nh5 15.Rb1 f5 16.f3 Nhf6 17.Qe2 Nd5 18.Bc4 Kh8 19.Bd5 Bd5 20.e4 Bg8 21.ef5 Rf5 22.Ne4 Bd5 23.Ng3 Rf8 24.Ba1 e5 ½–½. Korsvold,Jon Egil – Hardersen,Steinar, Narvik CC, 1999.

6.d4 d5 7.0-0 Bg4 8.Nbd2 Nbd7 9.c4 c6 10.a4 dc4 11.Nc4 Nd5 12.b5 cb5 13.ab5 a6 14.ba6 ba6 15.h3 Bf3 16.Bf3 (worse is 16.gf3 e6=) 16...N7f6 17.Qa4 Qc7 18.Rfc1 Rfc8 (18...Rfb8 19.Ba3 Qd8 20.Ne5+/-) 19.Ba3 (19.e4 Nb6 20.Nb6 Qb6 21.Rc8 Rc8 22.Qa6 Qd8+–) 19...Qd8+/- 20.g3 e6 21.Kg2 Nd7 22.Rab1 h5 23.Rb7 Rc7 24.Rc7 Qc7 25.Bd5 ed5 26.Ne5 Nb6 27.Rc7 Na4 28.Nf7 Nb6 29.Ng5 Nc4 30.Bc1 a5 31.e4 Bd4 32.ed5 Nd6 33.Ne6 (better is 33.Rc6 Ne8 34.Rg6 Bg7 35.d6+–) 33...a4?? (better is 33...Bf6+–) 34.Nd4 a3 35.Nc2 Nb5 (35...a2+–) 36.Rc5 1–0. Thoma,Robert (2285) – Mihevc,Narcisa (2150), Oberwart op, 1995. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6)

6.d4 Nd5 7.a3 Nd7 8.c4 N5f6 9.0-0 c5 10.bc5 dc5 11.d5 Nb6 12.Qc2 Bf5 13.Bd3 Bd3 14.Qd3 Nbd7 15.Nc3 Qc7 16.Rab1 Ne5 17.Qd2 Nc4 18.Qd3 Nb2 19.Rb2 b6 20.Nb5 Qd7 21.Rd1 Rad8 22.e4 Ne4 23.Re2 Nd6 24.a4 Nb5 25.ab5 Rc8 26.Qc4 Kh8 27.Red2 Qf5 28.d6 ed6 29.Rd6 Be5 30.R6d5 Rfe8 31.Ne5 Re5 32.Rd7 Rce8 33.g3 Re4 34.Qf7 Qf7 35.Rf7 Re1 36.Re1 Re1 37.Kg2 Ra1 38.h4 Ra5 39.g4 Rb5 40.Ra7 c4 41.Ra2 Rc5 42.Rb2 b5 43.Kf3 c3 44.Rc2 b4 0–1. Chess4Win (1710) – zunetoon, lichess.org, 2020.

6.d4 Ne4 7.Nbd2 Nd2 8.Qd2 c5 9.b5 a6 10.c4 (10.a4 cd4 11.ed4 d5=) 10...ab5 (10...cd4 11.Bd4 e5 12.Bc3=) 11.cb5 b6 (11...cd4 12.Bd4 e5 13.Bb2=) 12.0-0 (12.dc5 dc5 13.Qc1 Bb2 14.Qb2 Qd5+=) 12...Bb7 (12...Nd7 13.Rfd1+=) 13.a4 (13.Rfd1 Nd7+=) 13...Nd7= 14.Rfd1 (14.Rfc1 cd4 15.Nd4 Nc5+=) 14...Nf6 (14...e6 15.dc5 Bb2 16.Qb2 Nc5 17.Qb4=) 15.h3 (15.dc5 Ne4 16.Qc2 Bb2 17.Qb2 Nc5=) 15...Qc7 (15...cd4 16.Nd4 Qd7 17.Rdc1=) 16.Rdc1 (16.dc5 Qc5 17.Rac1 Qf5=) 16...Rfc8 17.dc5 Ne4 18.Qc2 Qc5 19.Qb3 Qf5 20.Bg7 Kg7 21.Qb2 (21.Rc8 Rc8 22.Qb2 Qf6 23.Qf6 Kf6=) 21...Qf6 22.Qf6 Kf6 23.Rc8 Bc8 24.Rc1 (24.Nd4 Nc5+=) 24...Nc5 25.Bd1 Bb7 26.Nd4 (26.Nd2 d5+=) 26...e5 27.Nb3 (27.Nc6!?+=) 27...Na4-/+ 28.Rc7 (28.Nd2 d5-/+) 28...Bd5–+ 29.Bf3 (29.Bc2 Nc5 30.Nc5 dc5–+ (30...bc5?! 31.e4 Bc4 32.b6-/+)) 29...e4 30.Bd1 Nb2 (30...Nc5 31.Nc5 dc5 32.Bg4–+) 31.Bc2-/+ Ra3 32.Nd4 Nd3 (32...h6 33.Rc8-/+) 33.Rd7 Bc4 (better is 33...Ke5!?-/+) 34.Rd6= Ke7 (34...Ke5 35.Rb6 Ra1 36.Kh2 Nf2 37.Rc6+=) 35.Rb6+= Ra1 36.Kh2 Nf2 37.g4 (37.Rc6 Bd5 38.b6 Ra8+/-) 37...Re1 (better is 37...h6+=) 38.Kg2?? (38.Rc6 Bb5 39.Rc7 Bd7+/-) 38...Nd1?? (better is 38...Nd3-/+) 39.Bd1 (39.Be4 Bf1 40.Kg3 Re3 41.Bf3 Rd3 42.Nc6 Kd6+/-) 39...Rd1 40.g5 Bf1 41.Kg3 Bc4 (41...Re1 42.h4+/-) 42.Kf4 Rh1 (42...Rg1!?+/-) 43.Ke5 Rh3 44.Rb7 Ke8 45.Ke4 (45.Rc7 Bd3 46.Kd6 Kf8+–) 45...h5 (45...Bf1 46.Rc7 Bg2 47.Kf4+–) 46.b6 (better is 46.Rc7 Bf1 47.b6+–) 46...Ba6? (better is 46...Rg3 47.Ke5 Rg5 48.Kf6 Rg1+–) 47.Ra7 Bc8 48.b7 Bb7 49.Rb7 Rg3 50.Nf3 (50.Nb5 Rg5 51.Nd6 Kf8 52.Nf7 Rg3+–) 50...Rg4 (50...Kf8 51.Ne5 Rg5 52.Nf7+–) 51.Kd3 (51.Ke5 Rg2+–) 51...h4 (51...Rg3 52.Ne5 Rg5 53.Nf7+–) 52.Rb8 Ke7 53.Rh8 Rg3 (53...f6 54.Rh7 (worse is 54.Rh4 Rh4 55.Nh4 fg5 56.Ng6 Kf6+–) 54...Ke6 55.Nd4 (worse is 55.Rh4 Rh4 56.Nh4 fg5 57.Ng6 Kf5 58.Ne7 Ke6+–) 55...Ke5 56.Re7 Kd6 57.gf6+–) 54.Ke2 (54.Ke4 f5 55.gf6 Kf6 56.Rh4 Rg2+–) 54...h3 (54...Rg2 55.Kf1 Ra2 56.Rh4 Ra1 57.Ke2 Ra2 58.Kd3 Ra3 59.Ke4+–) 55.e4 f6 56.gf6 Kf6 57.Kf2 Rg2 58.Ke3 g5 59.Rh6 (better is 59.Rh3 g4 60.Rh6 Kg7 61.Nh4 Kh6 62.Ng2+–) 59...Kg7+/- 60.Rh3 g4 61.Rh5 gf3 (61...Rg3 62.Kf4 Rf3 63.Kg4+/-) 62.Kf3+– Rg1 63.Kf4 Ra1 (better is 63...Kg6 64.Rh8 Ra1+/-) 64.Rf5?? (better is 64.Kf5+–) 64...Rf1= 65.Ke5 Rf5 66.ef5 Kf7 67.f6 Kf8 68.Ke6 Ke8 69.f7 Kf8 70.Kf6 ½–½. Slabek,Grzegorz – Sola,Wojciech, Rubinstein Festival – Open C Poland, 2016. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Ne4)

6.d4 Ne4 7.Nbd2 Nd2 8.Qd2 c5 9.b5 cd4 10.Nd4 (10.Bd4 e5 11.Bb2 Be6=) 10...Nd7 11.0-0 Qc7 12.c4 Nc5 13.Nb3 Bb2 14.Qb2 e5 15.Rfd1 Be6 16.Rac1 Rfd8 17.Bf3 Rd7 (17...Bf5 18.Nc5 dc5 19.Bd5+=) 18.Bd5 a6 19.Nc5 Qc5 20.a4 ab5 21.Be6 fe6 22.cb5 Qb6 23.Qb3 d5 24.h4 (24.Qc3 d4 25.Qc4 Qd6+=) 24...e4 25.Ra1 (25.Qb4 e5+=) 25...Rc7 (25...Qd8!?-/+) 26.Qb2 Rc4 (26...Rf7 27.h5=) 27.h5 gh5 28.Qf6 Rc7?? (better is 28...Qd6=) 29.Rd5!!+– Rg7 (29...ed5 30.Qe5 Double attack (30.Qb6 Pinning; 30.Qb6 Deflection; 30.Qe5 Decoy)) 30.Rad1 (30.Rh5?! Qd6 31.Rh6 Re8+–) 30...h6 (30...Rf8 31.Rd8 Qc5 32.Qe6 Rgf7 33.R1d7+–) 31.Qh6 (31.Rd7 Rg2 32.Kg2 Qd4 33.Qg6 Qg7 34.Qg7) 31...Rf8 (31...Re8 32.Rd7 Ree7 33.Rd8 Kf7 34.Qh5 Rg6 35.R8d7+–) 32.Rh5 (better is 32.Rd7 Rff7 33.Rd8 Qd8 34.Rd8 Rf8 35.Qe6 Kh7 36.Rf8 Rf7 37.Rf7 Kh8 38.Qc8) 32...Qc7 33.Qe6 Rff7 (33...Qf7 34.Qh3 Rh7 35.Rh7 Qh7 36.Qh7 Kh7 37.Rd7 Kg6 38.Rb7+–) 34.Qe8 (better is 34.Rhd5 Kh7 35.Qe4 Kg8 36.Rd8 Rf8 37.Qe6 Rgf7+–) 34...Rf8 35.Qe6 Rff7 36.b6 Qb8 (36...Qe7 37.Qh3 Rh7 38.Rh7 Rh7 39.Qc8 Kg7+–) 37.Rhd5 Kh7 38.Qe4 Rg6 39.Rd6 Qg8 40.Qg6 (40.Qg6 Qg6 41.Rg6 Kg6 42.Rc1+–; 40.Qh4 Kg7 41.Rg6 Kg6 42.Rd6 Rf6 43.Rf6 Kg7 44.Qh6) 1–0. Slabek,Grzegorz – Kanarek,Marcel, 4th Polish–Hungarian Friendship Tournament, 2016. (=1.Nf3 g6 2.b4 Bg7 3.d4 d6 4.Bb2 Nf6 5.e3 0-0 6.Be2 Ne4)

6.d4 e6 7.0-0 Nc6 8.b5 Ne7 9.c4 Nd7 10.Nc3 e5 11.a4 ed4 12.ed4 b6 13.Qc2 Bb7 14.Rfe1 Nf6 15.Bf1 Re8 16.Re2 Nf5 17.d5 Re2 18.Qe2 Qe8 19.Re1 Qe2 20.Re2 Re8 21.Re8 Ne8 22.g4 Nh6 23.h3 Bc8 24.Ng5 f6 25.Ne6 Be6 26.de6 Kf8 27.Nd5 Ng8 28.Bg2 Ne7 29.f4 Nd5 30.cd5 Ke7 31.f5 g5 32.Kf2 h6 33.Kg3 Bf8 34.h4 Kd8 35.hg5 hg5 36.Bf3 Be7 37.Be4 Ng7 38.Bc3 Ne8 39.a5 Kc8 40.a6 Kd8 ½–½. Orang4Utan (1635) – kroegchamp (1650), lichess.org, 2017.

6.d4 Re8 7.0-0 Nd5 8.a3 Bf5 9.c4 Nb6 10.Nbd2 d5 11.c5 N6d7 12.a4 c6 13.b5 (13.Nh4 Be6+=) 13...Qc7 (13...Nc5 14.Nh4=+) 14.h3 (14.Rc1 Nf6+=) 14...Nf6 (better is 14...Nc5!? 15.Ba3 Ne4=+) 15.Ne5 Ne4 16.Ne4 Be4 17.f3 Bf5 18.f4 Be4 19.Bd3 f5 20.Be4 de4 21.Bc3 e6 22.Qb3 Nd7 23.Qe6?? (better is 23.Ba5! Qa5 24.Nd7+/-) 23...Re6–+ 24.b6 (24.bc6 bc6 25.Nd7 Qd7–+) 24...ab6 (24...Ne5 25.bc7 Nd7 26.Rab1 Nc5 27.Ba5 Na4 28.Rb7=+; 24...Be5?! 25.bc7 Bc7 26.Rfb1–+) 25.cb6 Qd8 (25...Nb6!? 26.a5 Nd5 27.Bd2–+) 26.a5 Ne5 27.fe5 Bh6 28.Bd2 (28.Rfe1 Ra6–+) 28...Qd5 29.Rfe1 c5 30.Bc3 c4 31.Kf2 f4 32.ef4 Bf4 33.g3 e3 (34.Kg1 Qf3–+) 0–1. mythicalknight – caff, Caissa.com, 2004.

6.d4 Re8 7.0-0= e5 8.de5 Ng4 9.Nbd2 (9.Nc3 Ne5 10.Ne5 Be5=) 9...Nc6= 10.Nc4 Nge5 (worse is 10...de5 11.b5 Nb4 12.h3+/-) 11.Nce5 Ne5 (worse is 11...Be5 12.Ne5 de5 13.b5 Qd1 14.Rad1+/-) 12.Ne5 Be5 13.Be5 Re5 14.Bf3 ½–½. Slabek,Grzegorz (2065) – Przytula,Grzegorz (1935), Dobczyce Poland, 2014. (=1.Nf3 Nf6 2.d4 d6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.Be2 Re8)

6.d4 Bf5 7.0-0 Nc6 8.a3 a6 9.Nbd2 Ne4 10.Rb1 e5 11.Ne4 Be4 12.Nd2 Bf5 13.d5 Ne7 14.e4 Bd7 15.c4 f5 16.Qb3 fe4 17.Ne4 Rf4 18.f3 Bf5 19.g3 Be4 20.fe4 Rf1 21.Rf1 Qd7 22.c5 Kh8 23.Qd1 Ng8 24.Bg4 Qb5 25.Be2 Qe8 26.c6 b6? 27.Bc3 Bh6 28.Bd2 Bd2 29.Qd2 Kg7 30.Qe3 a5 31.b5 Nf6 32.Kg2 Qe7 33.h3 Rf8 34.a4 h6 35.Bf3 Nh7 36.Be2 Rf1 37.Bf1 Qf6 38.Bd3 g5 39.Qf3 Kg6 40.Qf6 Nf6 41.Kf3 h5 42.Kf2 h4 43.g4 Ng8 44.Kf3 Kf6 45.Bc2 Ne7 46.Bd3 Ng6 47.Bf1 Nf4 ½–½. Haisma,Henk – Kitchlew,Attauallah, Guernsey Holiday, 2001.

6.d4 Bf5 7.c4 Re8 8.0-0 Qc8 9.Nc3 Nbd7 10.Nh4+= Nf8 11.Nf5 Qf5 12.Bf3 c6 13.b5 Qd7 14.Qa4 Rec8 15.bc6 bc6 16.Rab1 Rab8 17.Ba3 Rb6 18.c5 Rb1 19.Rb1 d5 20.Qa6 Rc7 21.Bd1 Ne4 22.Ne2?? Nd2?? 23.Rb8+= e5 24.Bb4 Nc4 25.Bb3 Qe6 26.Bc3+/- ed4 27.Nd4 Bd4 28.Bd4 Nd2? 29.Qa5+– Nb3 30.Qc7 Nd4 31.Qd8 Kg7 32.Qf8 Kf6 33.Qh8 Kf5 34.Qd4 Qe4 35.Qe4 (35.Qe4 Ke4 36.Rc8+–) 1–0. Shamieh,J (2185) – Shahrour,Ibrahim, ch–LIB Beirut LIB, 2008.

6.d4 Bf5 7.Nbd2 Ne4 8.0-0 Nd7 (8...Nf6 9.Nh4 Bd7 10.c4+=) 9.Nh4 (9.Ne4 Be4 10.Ng5 Nf6+=) 9...Nd2= 10.Qd2 Be6 11.c4 Nf6 12.Bd3 Re8 (12...d5 13.c5=) 13.Qc2 (13.e4 c6+=) 13...d5 14.c5 c6 15.f4 Ng4 16.Rae1 Nh6 17.f5 Nf5 (17...Bd7 18.fg6 hg6 19.e4+=) 18.Nf5+/- Bf5 19.Bf5 gf5 20.Qf5 Rf8 21.Rf3 Qc8 22.Qg5 f6 23.Qg3 Kh8 24.Qh4 Qe6+= 25.Rh3 Qf5 26.e4+/- de4 27.Re4 Rf7 28.Bc1 Rg8 29.Qe1?? Bf8?? 30.Reh4+= Qd5 31.Qf1 Rfg7 32.g3+= Qa2 33.Qf5+/- Qf7 34.Bh6 Rg6 35.Bf8 Rf8 36.Rh7 Qh7 37.Rh7 Kh7 38.Qd7 Rg7 39.Qb7 Rd8 40.Qc6 Rd4 41.b5 Rc4 42.b6?? ab6= 43.Qb6 Rg5 44.Qe6 Rc1 45.Kf2 Rc2 46.Kf3 Rc3 47.Kf4 Re5 48.Qf7 Kh6 49.c6 Rc6 50.Qf8 Kh7 51.Qf7 Kh6 52.Qg8 Rce6 53.Qh8 ½–½. Schindler,Rudolf – Schreiber,Ben_Luca (1675), Berlin GER, 2012.

6.d4 Bg4 7.0-0 Bf3 8.Bf3 Nbd7 9.Bb7+/- Rb8 1-0. muhammadaudii (2060) - Gafaarissa (2035), lichess.org, 2020.

6.d4 Bg4 7.c4 Nfd7 8.0-0 c5 9.b5 cd4 10.Nd4 Be2 11.Qe2 Nc5 12.a4 b6 13.Nd2 a5 14.Qf3 Nbd7 15.Nc6 Qe8 16.Bg7 Kg7 17.Qd5 f6 18.Nf3 Qf7 19.e4 Qd5 20.ed5 Kf7 21.Rfe1 Rfe8 22.Nfd4 e6 ½–½. Schwichtenberg,Juergen – Hoeppner,Klaus Dieter, Frankfurt, 2000.

6.d4 Bg4 7.Nbd2 c6 8.0-0 Qc7 9.c4 Nbd7 10.h3 Bf3 11.Nf3 d5 12.a4 Rfe8 13.b5 dc4 14.Bc4 cb5 15.Bb5 Rac8 16.Rb1 a6 17.Bd3 h6 18.Qb3 e6 19.Ba1 Rb8 20.Rfe1 Rec8 21.e4 Kh7 22.Bb2 Ng8 23.Ba3 Bf8 24.Bc1 e5? 25.Qf7+– Bg7 26.Ba3 (26...Qc6 27.Rec1 Qa4 28.Rc8 Rc8 29.Rb7 Qa3 30.Ne5+–) 1–0. Gosme,Emile – Bjelland,Bruce, internet, 1998.

6.d4 Bg4 7.Nbd2 Nbd7 8.c4 b6 9.a4 (9.h3 Be6+=) 9...c5= 10.bc5 dc5 11.d5 Qc7 12.0-0 Rad8 13.e4 e6 14.Re1 Rfe8 15.e5 Nh5 16.d6 Qc6 17.h3 Bf3? (better is 17...Bf5!? 18.Qb3 Nf4=) 18.Bf3+– (18.Nf3?! f6=) 18...Qc8 19.Bh5 gh5 20.Qh5 Nf8 21.Nf3 Ng6 22.Ng5 h6 23.Ne4 Qc6 24.Nf6 Bf6+/- 25.ef6 Kh7?? 26.Bc1+– Rh8 27.Qh6 Kg8 28.Qg7 1–0. Fournier,Frederic – yakson, Active, 2009.

6.0-0 a5

7.a3 Na6 8.d4=.

7.a3 ab4 8.ab4 Ra1 9.Ba1 b6 10.Nc3 Bb7 11.d3 c5 12.bc5 bc5 13.e4 Nc6 14.Re1 Qa5 15.Nd5 Ra8 16.Nf6 Bf6 17.Bf6 ef6 18.h3 Ne5 19.Qb1 Qb4 20.Qb4 cb4 21.Rb1 Ra2 22.Nd4 Ra4 23.f4 Nc6 24.Nb3 Na7 25.c4 bc3 26.Nc1 Ba6 27.Kf2 Nb5 28.Ke3 Na3 29.Rb3 c2 30.Kd2 Kg7 31.Kc3 Nb5 32.Kb2 Nd4 33.Rc3 Ne2 34.Rc2 Nc1 35.Kc1 Bd3 36.Rc3 Be4 37.Kd2 Bg2 38.Ke3 Bd5 39.Rd3 Be6 40.Rd6 Rb4 41.Rd3 1–0. Chess4Win (1740) – NeilGr–01 (1715), lichess.org, 2020.

7.a3 ab4 8.ab4 Ra1 9.Ba1 c6 (9...Na6 10.Ba6 ba6 11.Bf6 Bf6 12.Nc3+=) 10.c4 (10.Nc3 Na6 11.Qb1 b5=) 10...Qb6 (10...Na6 11.Qb3+=) 11.b5= Nbd7 (11...cb5 12.cb5 Nbd7 13.Nc3=) 12.d4 (12.Nc3 cb5 13.Nb5 Nc5+=) 12...c5 (12...cb5 13.cb5 Ne4 14.Nfd2=) 13.Nc3 White intends d5 (13.Qb3 cd4 14.ed4 e5=) 13...Qc7 (13...cd4 14.Qd4 Nc5 15.Rd1=) 14.d5 e6 (14...Nb6 15.h3=) 15.Nd2 (15.de6 fe6 16.Qb3 Nb6+=) 15...ed5 (15...Nb6 16.e4=) 16.cd5 (16.Nd5 Nd5 17.cd5 Nb6=) 16...Nb6+= 17.e4 Re8 18.Qc2 Bg4 (18...c4 19.h3=) 19.Bg4= Ng4 20.h3 Nh6 (20...Nf6 21.Na4=) 21.Na4 Ba1 (21...Na4 22.Qa4 f5 23.b6=) 22.Ra1+= Ra8 23.Ra2 (better is 23.Qd1 Na4 24.Ra4 Ra4 25.Qa4+=) 23...f5?? (better is 23...Na4 24.Ra4 Ra4 25.Qa4 Qe7=) 24.Nb6+– Ra2 25.Qa2 Qb6 26.Nc4 (26.Qa8 Kg7 27.Nc4 Qc7 28.Qa1 Kf8+–) 26...Qb5 (26...Qd8 27.Qa7 Qg5 28.Qa8 (28.Nd6?! Qc1 29.Kh2 Qf4 30.Kg1 Qc1 31.Kh2 Qf4 32.Kg1 Qc1=) 28...Kg7 29.Qb7 Nf7 30.Ne3+–) 27.Nd6 (27.Qa8 Kg7 28.Qa1 Kg8 29.Nd6 Qa6+–) 27...Qb4 (better is 27...Qa6!? 28.Qa6 ba6+/-) 28.Qa8+– Kg7 29.Qb7 (29.Qa1 Qd4 30.Qd4 cd4+–) 29...Qb7 30.Nb7 c4 31.e5 (31.Kf1!? Kf6 32.f3+/-) 31...c3+= 32.Nc5 g5 (32...c2 33.Nd3 g5 34.e6=) 33.Kf1 (better is 33.e6!? Kf8 34.Kf1+=) 33...c2= 34.Nd3 (34.Nb3 Nf7=) 34...Nf7 35.e6 Ne5 36.Nc1 Kf6 37.Ke2 Ke7 (37...Ng6 38.Kd2 Nf4 39.Kc2 Nd5 40.Nd3=) 38.Kd2 (38.Nb3 Kd6=) 38...Kd6 39.Ne2 (39.Nb3 Kd5 40.e7 Nc4 41.Kc2 Nd6=) 39...Kd5 40.e7 (40.f4 gf4 41.e7 Nc4 42.Kc2 Nd6=) 40...Nc4 41.Kc2 Nd6 42.Kd3 (42.f4 gf4 43.Nf4 Ke5 44.Nd3 Ke6=) 42...Ke6 43.Kd4 (43.f4 gf4 44.Kd4 Ke7 45.Nf4 Kf6=) 43...f4+= 44.g4 (44.Ng1 Nf5 45.Ke4 Ne7=) 44...fg3= 45.Ng3 Ke7 46.Ke5 h6 47.Nh1 Ne8 48.Ng3 Kf7 (48...Nd6 49.Ne2=) 49.Kf5 (49.Nf5 Kg6=) 49...Ng7 50.Kg4 Kg6 51.Kf3 h5 52.Ke4 Ne6 53.Ne2 Nc5 54.Kd4 Ne6 55.Ke5 Nc5 56.Kd4 Ne6 57.Ke3 Kf5 58.Ng3 Kg6 59.Ne2 Kf5 60.Ng3 Kg6 61.Ne2 1–0. Velten,Paul (2445) – Alfaro Garcia del Cerro,Juan L (2015), 27. Gros Open, 2017. (=1.e3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 a5)

7.a3 Nbd7 8.d3 e5 9.Nbd2 c6 10.ba5 Ne8 11.Nb3+= f5 12.Nfd2 g5 13.f4 gf4 14.ef4 Qh4 15.Qe1 Qe7 16.fe5 de5 17.Kh1 Nd6 18.d4 e4 19.Nc4 ½–½. Kulikova,Aliona – Kashcheev,Alexandr, Tsiolkovsky Mem, Kaluga RUS (6), 2007.

7.a3 e5 8.d3 ab4+= 9.ab4 Ra1 10.Ba1 b6 11.c4= Bb7 12.Nc3 Re8 13.Nd2 Nbd7 14.Bf3 Qb8 (14...Qa8 15.Nb5 Qb8 16.Bb2=) 15.Bb2+= Nf8 (15...Qa7 16.Qc2+=) 16.Qa4 Bf3 17.Nf3 Qa8 18.Ra1 Qa4 19.Ra4 e4 20.de4 (20.Ne1!?+=) 20...Ne4= 21.Nd1 Ne6 22.Bg7 Kg7+= 23.g3 g5 24.g4 h5 25.h3 Kg6 26.Ra7 hg4 27.hg4+= Nf6 28.Nc3= Ng4 29.Nd5 Kf5 30.Nc7 Re7 31.Nb5 Ra7 32.Na7 Ke4 33.Kg2 Kd3 34.Nc8 Kc4 35.Nd6 Kb4 36.Nf7 Kc4 37.N3g5 Ng5 38.Ng5 b5 39.Kg3 Nf6 40.Ne6 b4 41.Nd4 Kd3 ½–½. Etmans,Maarten D (2170) – Smits,Mark (2270), Dieren op, 2005.

7.b5 a4 8.a3 Nbd7 9.c4 Nc5 10.Nc3 e5 11.d4 ed4 12.Nd4 (12.ed4 Nfe4+=) 12...Re8= 13.Bf3 h5 14.h3 Nfe4 15.Ne4 Ne4 16.Qc2 Nc5 17.Rfd1 Qf6 18.Rab1 Qg5 19.Kh1 h4 20.b6 c6 21.Qe2 Bd7 22.Nc2 Be5 23.Bd4 Be6 24.Nb4 Nb3 (24...Bf5 25.Be5 Re5 26.Rb2=) 25.Be5 de5 26.Be4 (26.Nc6!? Rac8 27.Na7 Bc4 28.Qe1+/-) 26...Nc5= 27.Bc2 Rad8 28.Rd8 Rd8 29.Rd1 (29.Na2 Bf5 30.Nc3 Bc2 31.Qc2 Qf5 32.Qf5 gf5=) 29...Kg7 (29...Rd1 30.Qd1 Bc4 A) 31.Ba4? Na4 32.Nc6 Nb6 (32...bc6?? 33.b7 Bd5 34.b8Q Kh7 35.Qg4 Qg4 36.hg4+-) 33.Ne5 Bd5-+; B) 31.Qd2=+) 30.Rd8 (30.Rb1!?=) 30...Qd8=+ 31.Nd3?? (31.Qe1 Qb6 (worse 31...Bc4 32.Qc3+/-) 32.Qc3 Qc7=+) 31...Nd3 (better 31...Bc4 32.Qe1 Bd3-+) 32.Bd3 (32.Qd3!? Qb6 33.Qc3-/+) 32...Qb6-+ 33.f4 ef4 34.ef4 Qd4 35.Qe5 Qe5 36.fe5 g5 37.c5 (37.Kg1 f6-+) 37...f6 38.ef6 Kf6 39.Kg1 (39.Be2 Ke5 40.Bd1 Kd4 41.Ba4 Kc5-+) 39...Ke5 40.Bc2 Bb3 41.Bd3 (41.Bb1-+) 41...Kd4 42.Bf5 Kc5 43.Bc8 b5 44.Kf2 (44.g3 Bd5 45.gh4 gh4-+) 44...b4 45.Ke3 (45.ab4 Kb4 46.Bf5-+) 45…ba3 (45...ba3 46.g3 a2 47.gh4 a1Q 48.hg5 Qg1 49.Ke4 a3 50.Bg4 Bc2 51.Kf4 a2 52.Bf3 a1Q 53.Be4 Qf2 54.Kg4 Qd1 55.Bf3 Qdf3) 0-1. Arifars17 (2645) - Maurevert (2600), Rated Bullet game, lichess.org, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0)

7.b5 b6

8.d3 Bb7

9.c4 c5 10.Nbd2 Nbd7 11.Qc2 e5 12.d4 ed4 13.ed4 Re8 14.Rfe1 Ne4 15.d5 Ndf6 16.Ne4 Ne4 17.Bg7 Kg7 18.Bd3 Nf6 19.Re8 Qe8 20.Re1 Qd7 21.h3 Re8 22.Qd2 Re1 23.Qe1 Qe8 24.Qe8 Ne8 25.Nd2 Nf6 26.Be2 Bc8 27.g4 h6 28.Kg2 g5 29.Kg3 Nh7? 30.f4 Kf8 31.Bd3 Nf6 32.fg5 hg5 33.Nf3 Nd7 34.Ng5 Ne5 35.Be2 Kg7? 36.Kf4 Kh6? 37.Nf3 Kg7?? 38.Ne5 1–0. ejdrzej (1620) – alek1, kurnik, 2012.

9.c4 Nbd7 10.Nbd2 e5 11.a4 Re8 12.Nb3 e4 13.de4 Ne4 14.Bg7 Kg7 15.Nfd4 Nec5 16.Bf3 Bf3 17.Qf3 Qf6 18.Qf6 Kf6 19.Nc5 Nc5 20.Rfd1 Kg7 21.h3 f5 22.g3 Kf6 23.h4 Re4 24.Kg2 Rae8 25.Kf1 R4e7 26.Kg2 Nd7 27.Nb3 Ne5 28.Rac1 Ng4 29.Rd3 Re5 30.Rcd1 Nh6 31.Rd5 Re4 32.R5d4 R4e7 33.Re1 Ng4 34.Nd2 Ne5 35.e4 Nd7-/+ 36.f3 Nc5 37.Ra1 fe4 38.fe4 Ne4 39.Ne4 Re4 40.Re4 Re4 41.Rf1 Kg7 42.Rc1 Re2 43.Kf3 Ra2 44.Re1 Kf7 45.Ke4 Ra4 46.Kd5 Ra3 47.g4 Rd3 48.Kc6 Rd4 49.Rc1 Rg4 50.Kc7 Ke6 51.Kb6 a4 52.Kc6 a3 53.b6 Rg2?? 54.b7+– Rb2 55.Kc7 a2? 56.b8Q Rb8 57.Kb8 d5 58.cd5 Kd5 59.Ra1 Ke5 60.Ra2 Kf4 61.Ra4 Kg3 62.Kc7 h6 63.Kd6 g5 64.hg5 hg5 65.Ke5 Kf3 66.Kf5 1–0. ejdrzej (1700) – zukertortjh (1715), kurnik, 2012.

9.Nbd2 Nbd7 10.c4 e5 11.a4 Re8 12.h3 Nc5 13.Nb3 Ncd7 14.Qc2 e4 15.de4 Ne4 16.Bg7 Kg7 17.Rad1 Nec5 18.Nc5 Nc5 19.Nd4 Qf6 20.Bf3 Bf3 21.Nf3 Re4 22.Nd4 Rae8 23.Nc6 h5 24.Rd4 Rd4 25.ed4 Ne6 26.Qd2 Qg5 27.Qg5 Ng5 28.Rc1 Ne6 29.c5 dc5-/+ 30.dc5 Nf4 31.Kf1 Nd3 32.Rd1 Nc5 33.Rd4 Re4 34.Re4 Ne4 35.Ne7 Nc3 36.g3 Na4 37.Nd5 Nc5 38.Nc7 a4 39.Nd5 Nd7 40.Ke2 f5 41.Kd2 Kf7 42.Kc3 Ke6 43.Ne3? Kd6 44.Kb4 Nc5 45.Nc4 Kc7 46.h4 Nd3 47.Ka4 Nf2 48.Kb4 Ne4 49.Ne5? Ng3 50.Ng6-/+ Ne4 51.Nf4 Nf6 52.Kc4+= Kd6 53.Kd4 Ke7 54.Ke5 Nd7 55.Kf5 Kd6 56.Nh5 Kc5? 57.Nf4 Kb5 58.h5 Nf8 59.Kf6 Kc5 60.Kg7 Nd7 61.h6 b5 62.h7 b4 63.h8Q b3 64.Nd3 Kc4 65.Qc8 Kd3 66.Qd7 Kc2 67.Qc6 Kb1 68.Kf6 b2 69.Ke5 Ka2 70.Qa4 Kb1 71.Kd4 Kc1 72.Qc4 Kd1 73.Qb3 Kc1 74.Qc3 Kb1 75.Kd3 (75.Kd3 Ka2 76.Qc2 Ka3 77.Kc3 b1Q 78.Qb1 Ka4 79.Qb4#; 75.Kc4 Ka2 76.Qa5 Kb1 77.Kb3 Kc1 78.Qe1#) 1–0. ejdrzej (1700) – krajaro (1815), kurnik, 2012.

9.Nbd2 Nbd7 10.c4 e5 11.Qc2 Re8 12.h3 e4 13.de4 Ne4 14.Ne4 Be4 15.Qc1 Bb2 16.Qb2 Nc5 17.a4 Qe7 18.Nd4 Rab8 19.Bf3 Qf6 20.Be4 Ne4 21.Qc2 Nc5 22.Rad1 Rbc8 23.Nc6 Re4 24.Rd5 Rce8 25.Rfd1 h5 26.R1d4 Rd4 27.Rd4 Kg7 28.Rf4 Qa1 29.Kh2 Qe5?? 30.g3 Qe6 31.h4 Nd7 32.Qc3 Ne5 33.Kg2 f6 34.Ne5 Qe5 35.Qe5 Re5 36.Rd4= Kf7 37.e4 Rc5 38.f4 Ke6 39.Kf3 f5 40.ef5 gf5 41.Ke3 d5 42.cd5 Kd6 43.Kd3 Rd5 44.Kc4 Rd4 45.Kd4 Ke6?? 46.Kc4= Kd6 47.Kd4 Ke6 48.Kc4= Kd6 49.Kd4 ½–½. ejdrzej (1675) – krajaro (1665), kurnik, 2012.

9.Nbd2 Nbd7 10.c4 Re8 11.a4 e5 12.Qc2 Nc5 13.Nb3 Nfd7 14.Nfd2 Qe7 15.e4 Ne6 16.Nf3 Bh6 17.Bc1 Bc1 18.Qc1 Ndc5 19.Nc5 Nc5 20.Qe3 Rf8 21.Nd2 f5 22.ef5 Rf5 23.Bf3 Bf3 24.Nf3 Raf8 25.d4 ed4?? 26.Nd4 Qe3-/+ 27.fe3 Rf1 28.Rf1 Rf1 29.Kf1 Kf7 30.Ke2 Na4 31.Kd3 Nc5 32.Kc3 Kf6 33.h4 Ke5 34.Nc6 Ke4 35.Ne7 Ke3 36.Nd5 Kf2 37.g4 Kg3 38.h5 Kg4 39.hg6 hg6 40.Nc7 g5 41.Ne8 Nb7 42.Nf6 Kf3 43.Nd5 g4 44.Nb6 g3 45.Nd5 g2 (45...g2 46.Kc2 g1Q–+) 0–1. ejdrzej (1715) – grajaro (1680), kurnik, 2011.

6.0-0 a6

7.c4 c5 8.bc5 dc5 9.d4 cd4 10.ed4 Bf5 11.Re1 Nc6 12.d5 Nb8 13.h3 Nbd7 14.Nbd2 Rc8 (14...Nc5!?+=) 15.g4+/- Be4? (better 15...Ng4!? 16.Bg7 Nf2 17.Kf2 Kg7+-) 16.Ne4+- Ne4 17.Bg7 Kg7 18.Qd4 Nef6 19.g5 Kg8 20.gf6 ef6 21.Bf1 Nc5 22.h4 (22.Qf4 f5+-) 22...h5 (22...Qd6 23.Qe3+-) 23.Bh3 Rc7 (23...f5 24.Bg2+-) 24.d6 Rc6 25.Rad1 Ne6 (25...Re8 26.Re8 Qe8 27.Re1+-) 26.Be6 fe6 27.Re6 Rf7 28.Rde1 Qa5 (28...Rc8 29.Qd5 Kg7+-) 29.Re8 Kg7 30.d7 1-0. Pereira – Mossiey, internet, 2021.

7.c4 c5 8.d3 cb4 9.Qb3 Nc6 10.Nbd2 a5 11.a3 ba3 12.Qa3 Bd7 13.Nd4 Nd4 14.Bd4 Bc6 15.Rab1 Nd7 16.Nb3 a4 17.Bg7 ab3 18.Qa8? (better is 18.Qb2 Ra2 19.Qb3 Re2 20.Bf8 Qf8 21.d4-/+) 18...Qa8–+ 19.Bf8 0–1. Yosa,Jhonny – Velandia,Oscar Ricardo (1845), 2nd JAHV McGregor Open, 2011.

7.c4 c5 8.d3 cb4 9.Qb3 Nc6 10.Nbd2 a5 11.Nd4 Bd7 12.a3 ba3 13.Qa3 Nd4 14.Bd4 Bc6 15.Rab1 Nd7 16.Nb3 a4 17.Bg7 ab3 18.Qa8? (better is 18.Qb2 Ra2 19.Qb3 Re2 20.Bf8 Qf8 21.d4-/+) 18...Qa8–+ 19.Bf8 Kf8 (19...Kf8 20.Ra1 Ba4–+; 19...Qf8?! 20.Rb3 Qa8 21.Rfb1–+; 19...Nf8?! 20.Ra1 Qe8 21.Rfb1–+) 0–1. Sanchez,Rubiela – Parra,Diego Alexander (1850), Bogota COL, McGregor Open, 2011.

7.d3 Bg4 8.Nbd2 Nbd7 9.h3 Bf3 10.Nf3 Rb8 11.c4 b5 12.cb5 Rb5 13.a3 a5 14.d4 Rb8 15.b5 Nd5 16.Qd2 e5 17.de5 Ne5 18.Ne5 de5 19.Qa5 c6 20.Rab1 Qa5 0–1. Phomopsis (1715) – Erspedro (1695), lichess.org, 2020.

7.d4 Nc6 8.a3 d5 9.Nbd2 Bf5 10.c4 Qd6 11.Qb3 (11.Rc1 Qd7+=) 11...Rad8 (11...dc4 12.Nc4 Qe6 13.Ng5+=) 12.Rac1 (12.c5 Qe6=) 12...dc4 13.Nc4 (< 13.Rc4 Be6-/+) 13...Qd5 14.Qd1 (14.Ncd2 Qd6+=) 14...e6 (14...Ne4 15.Ncd2=) 15.Nfe5 (15.Nh4 Rfe8+=) 15...Ne5= 16.Ne5 c6 17.f3 Bh6 18.Rc3 a5 (18...Qa2 19.Qb3 Qb3 20.Rb3 Bc2=) 19.Bc4+– Qd6 (better is 19...Qe5 20.de5 Rd1 21.Rd1 ab4 22.ab4 Nd5+–) 20.ba5 (better is 20.g4 ab4 21.ab4 Qb4 22.Qe2+–) 20...Nd5+= 21.e4 (better is 21.Bd5!? ed5 22.Rb3+=) 21...Nc3=+ 22.Bc3 Be3 (22...Bf4 23.Nd3 Bh2 24.Kh1=) 23.Kh1= Be4 (23...c5!? 24.Nd3 Bd4+=) 24.fe4+= Bd4 (25.Bd4 Qd4 26.Qd4 Rd4=). good1 – crafty, ICC, 1997.

6.0-0 b6

7.b5 Bb7 8.c4 Nbd7 9.d4 Re8 10.Nbd2 e5 11.de5 Ne5 12.Ne5 de5 13.Nb3 Qe7 14.a4 Nd7 (14...a5 15.Qc2=+) 15.Ba3 (15.Qc2!?=) 15...Qg5-/+ 16.g3 Rad8 17.h4? (better 17.Qc2-/+) 17...Qf5–+ 18.Nd2 Nf6 19.Qe1?? (19.Kh2–+) 19...Rd2! 20.Qd2 (20.c5 Re2! 21.Qe2–+) 20...Qh3 21.f3 Qg3 22.Kh1 Ng4 23.Bd1 (23.Bd3 Bh6 24.Rae1–+) 23...Bh6 24.Qg2 Qh4 25.Kg1 Be3 26.Rf2 Bf2 27.Kf1 Ne3 (27...Ne3 28.Ke2 Ng2 29.Kd2 Qc4 30.Bc2 Be3 31.Kd1 Bf3) 0–1. Vila Vila,Ricard – Guell Codina,Ramon (1965), Obert Ciutat de Vic, 2010.

7.c4 c5 8.b5 a6 9.a4 Bb7 10.Nc3 Nbd7 11.d4 d5 (11...cd4 12.ed4 Re8 13.Re1=) 12.Qb3 (better 12.ba6!? Ba6 13.cd5+/-) 12...ab5= 13.ab5 (worse 13.cd5 b4 14.Nb5 Bd5-/+; 13.Nb5?! Rc8=) 13...e6 14.Na4 Ne4 15.Rfd1 Qc7 16.Nd2 (16.cd5 ed5 17.dc5 bc5 18.Bg7 Kg7=) 16...Nd2 17.Rd2 cd4 18.Bd4 Bd4 19.ed4 dc4 20.Bc4 Nf6 21.Rdd1 Nd5 (21...Ra5 22.Nb2 Ra1 23.Ra1-/+) 22.Rac1 (22.Bd5 Bd5 23.Qe3 Rfc8=+) 22...Nf4 (22...Qd6 23.Nc3=+) 23.Bf1= Qd6 24.g3 Ra4 (better 24...Nd5=+) 25.Qa4+/- Qd5 26.f3?? (better 26.Rc6 Ra8 27.Qb4 Bc6 28.bc6+/-) 26...Qf3 (better 26...Ra8!? 27.Qc2 Qf3-+) 27.gf4?? (better 27.Rc6 Nd5 28.Rd3-+) 27…Qe3 0-1. Osmak,Iulija (2385) - Khademalsharieh,S (2485), World Blitz Women, 2019.

7.d4 Bb7 8.c4 Nbd7 9.Nbd2 c5 10.b5 Ne4 11.Ne4 Be4 12.Qd2 Bb7 13.d5 Nf6 14.Qc2 Bc8 15.e4 e6 16.e5 Ng4 17.ed6 Bb2 18.Qb2 Qd6 19.Rad1 e5 20.h3 Nf6 21.Qe5 Qe5 22.Ne5 Ne4 23.Bf3 Nc3 24.Rd2 Bb7 25.Rc1 f6 26.Nc6 Bc6 27.dc6 Nb5 28.cb5 a6 29.c7 Ra7 30.Rd7 ab5 31.c8Q Rc8 32.Ra7 b4 33.Rb7 1–0. Hyatt,Clubber – Makarome,Tony, Midlands Open, 1996.

7.d4 Bb7 8.Nbd2 Nbd7 9.h3 Re8 10.a4 c5 11.dc5 dc5 12.b5 e5 13.Nc4+= Qc7 14.Nd6 Re7 (14...Rf8 15.Bc4 Bf3 16.gf3+=) 15.Bc4+/- Rf8 16.Ng5 h6 (16...e4 17.a5 ba5 18.Bc3+=) 17.Ngf7 Rff7 18.f4 e4 (better is 18...ef4!? 19.Rf4 Kf8 20.Nf7 Rf7+–) 19.Be5+– (19.Bf7?! Rf7 20.Nf7 Kf7+/-) 19...Qd8?? (better is 19...Ne5 20.fe5 Kh7 21.Nf7 Nd7+–) 20.Nb7 (20.Nb7 Qf8 21.Nd6+–; 20.Nf7?! Rf7 21.a5 Kf8+–; worse is 20.Bf7 Rf7 21.Nb7 Qe7+–) 1–0. weBNimzo (2270) – yorugua (2075), ChessWorld.net, 2003.

7.Nd4 Bb7 8.Bf3 Bf3 9.Nf3 (worse is 9.gf3 c5 10.bc5 dc5-/+; 9.Qf3?! d5=) 9...a5 10.b5 Nbd7 11.d4 e6 12.a4 d5 13.Nbd2 Re8 14.c4 Nf8 15.Qb3 Rc8 16.Rac1 Nh5 17.cd5 Qd5 18.e4 Qd7 19.Rfd1 Bh6 20.Rc2 Nf4 21.Rdc1?? Ne2-/+ 22.Kf1 Nc1 23.Bc1 Bg7 24.Bb2 Qd6 25.Ba3 Qf4 26.Rc6 Nd7 27.Qc2+= Nf6 28.e5 Nd5 29.Bd6 g5 30.Bc7? Nc7 31.Rc7-/+ Rc7 32.Qc7 g4 33.Qd7? Rf8–+ 34.g3 Qh6 35.d5? gf3 36.Nf3 ed5 37.Qd5 Qe6 38.Qe4 Rd8 39.Ng5 Qg6 40.Qh4 Be5 41.Nf7 Qf7 42.Qd8+– Kg7 43.Qg5 Kf8 44.Qe5 Qc4 45.Kg2 Qa4 46.Qb8 Ke7 47.Qb6 Qb4 48.Qc7 Ke6 49.Qc6 Ke5 50.b6 Qe4 51.Qe4 Ke4 52.b7 a4 53.b8Q a3 54.Qa8 Kd3 55.Qa3 Kd4 56.Qe7 Kd5 57.Qh7 Ke5 58.Qg7 Kd5 59.h4 Kc5 60.h5 Kc4 61.h6 Kd3 62.h7 Kc2 63.g4 Kb3 64.g5 Kc4 65.g6 Kd5 66.Qf7 Ke4 67.g7 Kd3 68.Qe6 Kc3 69.Qd6 Kc4 70.Qc7 Kd3 71.Qb6 Ke4 72.Qb4 Ke5 73.Qc5 (73.Qc5 Kf6 74.h8Q Ke6 75.g8Q Kd7 76.Qhd4) 1–0. elsh1403 – serko, kurnik, 2011.

7.d3 Bb7

8.c4 Nbd7 9.Qb3 c5 10.Nc3 cb4 11.Qb4 Re8 12.d4 Rc8 13.Rac1 a5 14.Qb3 e5 15.de5 Nc5 16.Qc2 de5 17.Rfd1 Qe7 18.Nd5 (better is 18.Rb1!?=) 18...Nd5-/+ 19.cd5 Qd6 (better is 19...e4 20.Bg7 ef3 21.Bf3 Kg7 22.Qb2 Qf6 23.Qf6 Kf6-/+) 20.e4 Rf8 21.Qb1 Bh6? 22.Rc3?? Na4?? 23.Rc8+– Rc8 24.Be5 Qd7?? 25.Nd4 Nc3 26.Qb3?? a4?? 27.Qb6+/- Nd1?? 28.Bd1 Rc1–+ 29.Kf1 Rd1 30.Ke2 Rd2 31.Kf3 Rd3 32.Ke2 Rd1 33.Kd1+/- Bg7? 34.Bg7+– Kg7 35.Nc6?? Bc6+/- 36.Qd4?? Kg8 37.Qb6 Bb5 38.Qb8 Kg7 39.Qe5 Kg8 40.f4 a3 41.Qb8 Kg7 42.Qe5 Kf8?? 43.g4?? Qg4–+ 44.Kd2?? Qg2 45.Kc3 Qf3 46.Kb4-/+ Qd1?? 47.Qb8?? Ke7?? 48.Qb5 Qb1 49.Kc5 Qg1?? 50.Kc6+– Qc1 51.Qc5 Qc5 52.Kc5 h6 53.e5 g5 54.d6 Ke6 55.fg5 hg5 56.Kc6 1–0. elsh1403 – regichess, kurnik, 2011.

8.c4 e5 9.e4 Bc8 10.Nc3 Bg4 11.Nd5 Nc6 12.a3 Bf3 13.Bf3 (worse is 13.gf3 Nd4+=) 13...a5 14.b5 Nd4 15.Bd4 ed4 16.g3 (16.Nf6 Qf6 17.e5 de5 18.Ba8 Ra8+/-) 16...Nd7 17.Bg2 Nc5 18.a4 Qd7 19.f4 Rae8 20.Qc2 f5 21.ef5 gf5 22.Rae1 Re3 23.Ne3 de3 24.Bd5 Kh8 25.Kg2 Bd4 26.Qe2 Qe7? 27.Rd1 Na4+= 28.Rde1 Nc5 29.h3 a4 30.Qc2 Re8 31.Re2 Qg7 32.Rf3 a3 33.Qb3?? Nb3–+ 0–1. d4nf6 (1850) – patr6 (1805), kurnik, 2011.

8.Nbd2 c5 9.a3 Qc7 10.c4 Nbd7 11.Rb1 e5 12.Qb3 Rae8 (12...Rfe8 13.Qc3=) 13.Bc3 (13.h3 Kh8=) 13...Ng4 (13...Re7 14.Qc2=) 14.Ne1 f5 15.Bg4 (15.e4 Ngf6 16.ef5 gf5+=) 15...fg4= 16.f3 (16.Qd1!? h5 17.Kh1=) 16...Bh6 17.e4 Nf6 (17...Be3 18.Kh1+=) 18.Qd1 (18.Nc2 Rc8=) 18...Bc8 (18...g3 19.Kh1 (19.hg3?? Be3 20.Rf2 Ng4 21.fg4 Rf2–+) 19...Bf4 20.h3+=) 19.Qe2 Re7 (19...Bf4 20.Nb3=) 20.Nc2 (20.fg4 cb4 21.Bb4 a5+=) 20...Bf4 21.g3 (21.Ne3 gf3 22.Nf3 Kg7=) 21...Bd2 (21...Bh6 22.bc5 Qc5 23.d4-/+) 22.Qd2= (22.Bd2 Weaker is 22...gf3 23.Qf3 Bh3 24.bc5 dc5-/+) 22...gf3 23.Rf3 Kg7 (23...cb4 24.ab4 Kg7=) 24.Ne3? (better is 24.Rbf1=) 24...Ne4–+ 25.de4 Rf3 26.Nd5 Qd7 27.Ne7 Qe7 28.Rd1 (28.bc5 bc5 29.Kg2–+) 28...Bh3 29.Bb2 Qf6 30.Qe2 g5 (30...Bg4 31.Qc2–+) 31.Bc1 h6 32.Be3?? Bg4 33.Rf1 Rg3!! 34.hg3 Be2 35.Rf6 Kf6 36.Kf2 Bc4 37.Kf3 h5 38.Bd2 h4 39.gh4 gh4 40.Kg4 Bd3 41.Kh4 Be4 42.Kg4 Bc2 43.Kf3 a6 44.Be3 Ke6 45.Ke2 Kd5 46.Kd2 Ba4 47.Kc3 Kc6 48.Bg5 d5 49.Be7 d4 50.Kd3 Kd5 51.Bd8 c4 52.Kd2 b5 53.Bg5 e4 54.Bh6 c3 55.Ke1 e3 (55...e3 56.Kf1 c2 57.Kg2 c1Q 58.Bf4 Ke4 59.Bg5 Qc2 60.Kg3 Qf2 61.Kg4 Bd1 62.Kh3 Kf5 63.Bd8 Bg4) 0–1. Gebigke,Martin (2120) – Lang,Andreas (1935), Berlin op, 2002. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.Be2 0-0 6.0-0 b6 7.d3 Bb7)

8.Nbd2 c5 9.b5 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.c4 Qc7 14.Qc2 d5 15.Bb2 e6 16.Ra1 dc4 17.Nc4 Nd5 18.Bg7 Kg7 19.Ra7 Nb4 20.Qb2 Kg8 21.Qa1 Qb8 22.Nd6?? Bf3–+ 23.Bf3 Qd6 24.d4 c4 25.h3 Nd5 26.e4 Nf4 27.e5 Ne5! 28.de5 Qd3 29.Rc7 Nd5 30.Rc6+= Rd8 31.h4 c3 32.Bd5 ed5 33.Qc3 Qc3 34.Rc3 d4 35.Rd3 Kf8 36.f4 Ke7 37.Kf2 Ke6 38.Kf3 Kd5 39.g4 Kc4 40.Ke4?? Kb5 41.Rd4+/- Rd4 42.Kd4 Ka4?? 43.f5+– b5 44.e6 b4 45.e7 b3 46.e8Q Ka5 47.Kc3 (47.Kc5 gf5 48.Qb5#) 1–0. ejdrzej (1705) – zielllek (1790), kurnik, 2012.

8.Nbd2 Nbd7 9.c4 e5 10.a4 a5 11.b5 Nc5 12.Nb3 Nb3 13.Qb3 Re8 14.Nd2 e4 15.de4 Be4 16.Ne4 Ne4 (16...Re4? 17.Bf3 Qe7 18.Be4 Ne4 19.Bg7 Kg7 20.Rad1+–) 17.Bg7 Kg7 18.Bd3 Nc5 19.Qc3 Qf6 20.Qf6 Kf6 21.Be2 Re7 22.Bf3 Rae8 23.Rfd1 h5 24.g3 Re5 25.Bc6 R8e7 26.Kg2 Kg7 27.h4 f6 28.Rd4 Nb3-/+ 29.Rdd1 Na1 30.Ra1 Rc5 31.Bd5 Re5 32.e4 f5 33.f3 fe4 34.fe4 Kf6 35.Rf1= Kg7 36.Rf7 Kh6-/+ 37.Rd7 Re8 38.Kh3 Rf8 39.Bc6? Rc4–+ 40.Rc7 Ra4 41.Rb7 Ra2 42.Bd5 Rb2 43.Rb6 Rf1 44.e5–+ de5 45.Be4 Re1 46.Rg6 Kh7 47.Rg4 Kh8 48.Rg5 Re4 49.Rh5 Kg7 50.Rf5 Rb5 51.h5 a4 52.Rg5 Kh6 53.Rg6 Kh5 54.Ra6 Rb3 0–1. ejdrzej (1615) – gatti, kurnik, 2011.

8.Nbd2 Nbd7 9.c4 e5 10.Qc2 a5 11.b5 h6 12.a4 Qe7 13.Nb3 Rae8 14.e4 Nh5 15.Bc1 Nf4 16.Bf4 ef4 17.Rad1 g5 (17...f5 18.Nfd2+=) 18.h3 (18.Nfd4 f5 19.Bh5 fe4 20.Be8 ed3 21.Qd3 Ne5+=) 18...Ne5 19.Ne5 de5 20.Bg4 Bc8 21.Bc8 Rc8 22.c5 Rfd8 23.c6 Rd6 24.f3 Rcd8 25.Rd2 h5 26.Rfd1 g4 27.hg4 hg4 28.Kf2 gf3 29.gf3 Qh4 30.Ke2 Qh2 31.Ke1 Qg3?? 32.Ke2?? Rh6 33.Rf1+= Bf8 34.Kd1 Bb4 35.Rdf2 Kf8 36.Nd2 Rhd6-/+ 37.Nc4?? Rd3–+ 38.Kc1 Rc3 39.Qc3 Bc3 40.Kc2 Bd4 41.Rd2 Ke7 42.Rfd1 f6 43.Nb2 Qf3 44.Nc4 Qc3 45.Kb1 Qc4 (45...Qc4 46.Rd4 Rd4 47.Rd4 Qd4 48.Kc1 f3 49.Kc2 f2 50.Kb3 f1Q 51.Ka3 Qdd3 52.Kb2 Qfb1#) 0–1. ejdrzej (1680) – dercsika (1875), kurnik, 2012.

8.Nbd2 e5 9.c4 Nbd7 10.Qb3 Nh5 11.Rac1 Kh8 12.Rfd1 f5 13.a4 f4 14.e4 Ndf6 15.c5 bc5 16.bc5 Rb8 17.Qa2 Bc8 18.d4 Qe7 19.Ba3 (better is 19.cd6 cd6 20.de5+–) 19...Bg4? (better is 19...ed4 20.cd6 cd6 21.Nd4 Bd7+/-) 20.cd6+– cd6 21.de5 Ne8 22.Nc4 Rd8 23.Nd6 Nd6 24.Bd6 Rd6 25.ed6 Qe4 26.d7 Rd8 27.Rc8! Bf6 28.Rd8 Bd8 29.Qb2 Ng7 30.h3 Bh5 31.Nd4 f3 32.g4 fe2 33.Ne2 Bg4 34.hg4 Qg4= 35.Ng3?? h5 36.Rd4 Qg5 37.Re4 h4 38.Re8 Kh7 39.Rd8 hg3?? 40.fg3 Qd8-/+ 41.Kg2? Qd7–+ 42.Qe2 Qa4 43.Qf3 Qc2 44.Qf2 Qf2 45.Kf2 a5 46.Ke2 Nf5 47.g4 Nd4 48.Kd3 Nf3 49.Ke3 Ng5 50.Kf4 Nf7 51.Ke4. elsh1403 – vallejos, kurnik, 2011.

8.Nbd2 e5 9.c4 Nbd7 10.Qc2 Nh5 11.a4 f5 12.d4 e4 13.Ne1 f4 14.Ne4 fe3 15.fe3 Rf1 16.Kf1 Qh4 17.d5?? (17.Bf3 Qh2 18.Ke2 c5=) 17...Qh2?? (better is 17...Rf8 18.Kg1 Bb2 19.Qb2 Qe4–+) 18.Nf3 Rf8 19.Bg7 Kg7 20.Qc3 Kg8 21.Ke1? Qg2–+ 22.Nfg5 Ne5 23.Kd2 Bc8 24.c5 Bg4 25.Re1 h6 26.cd6 cd6 27.Ne6 Be6 28.de6 Ng3 29.Ng3-/+ Qg3 30.e7 Re8 31.Qb3 Kg7 32.Qe6 Nf3 33.Bf3 Qf3 34.Qd6 Qf6 35.Qd4 Re7 36.Qf6 Kf6 37.Kd3 Ke5 38.e4 Rd7 39.Ke3 g5?? 40.Rf1-/+ Ke6 41.a5 Rf7 42.Rb1 h5 43.ab6 ab6 44.b5 g4 45.Rc1? Rf3 46.Kd4 g3 47.Rc6 Ke7 48.Rb6 h4 49.Rh6?? g2 50.Rg6 h3 51.Rg7 Kf6 52.Rg4 h2 53.Rh4 (53.Rh4 g1Q 54.Kd5 Qg8 55.Kc5 Qc8 56.Kb6 Qb8 57.Kc5 Qc7 58.Kd4 Qc3 59.Kd5 Rd3#). ejdrzej (1670) – iglasty76 (1610), kurnik, 2012.

6.0-0 c5

7.a3 cb4 8.ab4 b6 9.d3 Bb7 10.Nbd2 Nc6 11.b5 Ne5 12.Ne5 de5 13.Be5 Qd5 14.Nf3 Ng4 15.Bg7 Kg7 16.c4 Qd6 17.h3 Bf3 18.hg4 Be2 19.Qe2 e5 20.Rad1 Qf6 21.g3 a6 22.ba6 Ra6 23.f4 ef4 24.gf4 Rfa8 25.g5 Qf5 26.Qh2 Ra2 27.Qh6 Kg8 28.Rf2 Rf2 29.Kf2 Ra2 30.Ke1 Qg4 31.Qh1 Qg3 32.Kf1 Qf2 0–1. Phomopsis (1675) – Asd131252 (1660), lichess.org, 2020.

7.a3 Nc6 8.b5 Na5 9.d3 Ne8 (9...a6 10.ba6 Ra6 11.Nbd2=) 10.Bg7+= Ng7 11.Nbd2 b6 12.h3 Bb7 13.a4 (13.d4 cd4 14.ed4 Ne6+=) 13...e5= 14.c3 Ne6 15.Nb3 Nb3 16.Qb3 Ng5 17.Qd1 a5 18.ba6 Ra6 19.c4 Nf3 20.Bf3 d5 21.d4 cd4 22.ed4 e4 23.Be2 Ra5 24.Rb1 dc4 25.Bc4 Rg5 26.Qb3 e3 27.d5 (27.Qe3?? Rg2 28.Kh1 Rf2 29.Kg1 Rg2 30.Kh1 Rg3 31.Kh2 Re3-+; 27.fe3?? Rg2 28.Kh1 Rg3 29.d5 Qh4-+) 27...Bd5 28.Bd5 Qd5 29.Qd5 Rd5 30.fe3 Rd6 31.Rbd1 Re6 32.Rd3 Kg7 33.Rf4 h6 34.h4 ½-½. alekhinebattery (2420) - kvb47 (2440), gameknot.com, 2022.

7.b5 Qa5 8.c4 Be6 9.a4 Ne4 10.Bg7 Kg7 11.d4 Nd7 12.d5 Bf5 13.Nh4 Nc3 14.Nc3 Qc3 15.Nf5 gf5 16.Bd3 e6 17.Rc1 Qf6 18.e4 Ne5 19.ef5 Nd3 20.Qd3 Qf5 21.Qf5 ef5 22.Rfe1 Rfe8 23.g3 Kf6 24.f4 a6 25.Kg2 ab5 26.Re8 Re8 27.ab5 Re4 28.Kf3 h6 29.g4 b6 30.h4 Rd4 31.g5 hg5 32.hg5 Kg6 33.Ke3 f6 34.Rh1 fg5 35.fg5 Kg5 36.Rg1 Rg4 37.Rh1 f4 38.Kf3 Rg3 39.Kf2 Rc3 40.Rh8 Rc4 41.Rd8 Rb4 42.Rd6 Rb5 43.Rc6 c4 44.d6 Kg4 45.Rc4 Rd5 46.Rc6 b5 47.Rb6 b4 48.d7 Rd7 49.Rb4 Rd2 50.Ke1 Rh2 51.Rb8 f3 52.Rg8 Kh3 53.Rh8 Kg2 54.Rh2 Kh2 55.Kf2 Kh3 56.Kf3 ½–½. Abdullaevich (1660) – zz42zz, lichess.org, 2018.

7.b5 Nbd7 8.c4 Nb6 9.Nc3 h6 10.a4 a5 11.d3 e6 12.e4 (12.Qc2 Qe7+=) 12...d5= 13.cd5 ed5 14.Qc1 d4 15.Nb1 Nbd7 (15...Nfd7 16.Qc2=) 16.Nbd2 b6 17.Nc4 Re8 18.Nd6 (18.Qc2 Re6=) 18...Re6 19.Nc8 Rc8 20.Qc2 Ne5 (20...Nh5 21.g3=) 21.Ne5 Re5 22.Bf3 Nh7 23.Rac1 Ng5 24.Bg4+/- Rb8? 25.f4+– Re8 26.fg5 Qg5 27.Bd7 Re7 28.Bc6 Be5 29.Qf2 Rf8 30.Bd5 Kg7 31.Bc4 Qh5 32.g3 Qg5 33.Ba1 h5 34.Kh1 Rh8 35.Bd5 h4+/- 36.g4 h3 37.Qe2 Rh4 38.Rg1 Qf4 39.Rcf1 Qg5 40.Bb2 f6 41.Bc1 Rg4 42.Bg5 Rg1 43.Rg1 fg5 44.Rg5 Bf4 45.Rg4 Be3 46.Qf3 Bh6 47.Qg3 g5 48.Rg5 Bg5 49.Qg5 Kf8 50.Qg8# 1–0. Bonetti,Shane – cuz (1760), ICC, 2002.

7.b5 Nbd7 8.d4 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.c4 Bf5 13.Nbd2 cd4 14.ed4 Re8 15.Re1 Nfd7 16.Nh4 e5 17.Nf5 gf5 18.d5 Nc5 19.Qb1 Qg5 20.Nf3 Qh6 21.Bc3 e4 22.Bg7 Qg7 23.Nd2 Nd3 24.Bd3 1–0. Orang4Utan (1860) – Boobbi (1850), lichess.org, 2020.

7.b5 Bf5=.

7.d4 cb4 8.Nbd2 a5 9.c4 a4 10.d5 a3 11.Bd4 Nbd7 12.Qb3 Qa5 13.Rab1 Nc5 14.Qb4 Qb4 15.Rb4 Bd7 16.Rfb1 Ng4 17.Bc5 dc5 18.Rb7 Bf5 19.e4 Bc8 20.Re7 Bb2 21.Nb3 Ba6 22.Nc5 Rfc8 23.Na6 Ra6 24.h3 Nf6 25.e5 Ne4 26.d6 Nc3 27.Rf1 Na2 28.d7 Raa8 29.dc8Q Rc8 30.Ra7 Nc3 31.Bd3 a2 32.Nd2 Rd8 33.Nb3 Rd3 34.c5 Nb5 35.Ra5 Rb3 36.Ra2 Be5 37.Rc1 Nc3 38.Ra8 Kg7 39.c6 Ne2 0–1. Orang4Utan (1840) – Shahinur_chessmood (1870), lichess.org, 2020.

7.d4 cb4 8.d5 b6 9.a3 ba3 10.Ra3 Bb7 11.c4 Nbd7 12.Qc1 a5 13.Nc3 Rc8 14.Qd2 Nc5 15.Rb1 Ba6 16.Nb5 Ncd7 (16...Nce4 17.Qc2=+) 17.Bd4 Bb5 18.Rb5 Qc7 19.Ra1 e5 20.de6 fe6 21.Rab1 e5 (better 21...Ne4 22.Qd3 Nec5=+) 22.Bb6+= Nb6 23.Rb6 Rfd8 (23...a4+=) 24.c5 (better 24.Ng5 Re8 25.Rb7+/-) 24...Ne4?? (better 24...Qc5 25.Ba6 Rc7=) 25.Qd5+- Qf7 26.Qe4 Kh8 (26...Rc5 27.Qa4 Qd7 28.R6b5+-) 27.Bc4 (better 27.cd6 Rf8+-) 27...Qc7?? (27...d5 28.Ng5 Qe7 29.Qh4+-) 28.cd6 (better 28.Ng5!? Qc5 29.Nf7 Kg8 30.Nd6 Kh8 31.Nc8 Qc8 32.Rg6 Qa8+-) 28...Rd6?? (better 28...Qc4 29.Qc4 Rc4+-) 29.Rd6 Qd6 30.Be2 (better 30.Ng5!? Rf8 31.Nh7 Rf5+-) 30...h6 (30...Bf6 31.Qa4 Qc7 32.Nd2+-) 31.h4 (31.Nh4 Kh7+-) 31...Qf6 (31...Qc6 32.Qc6 Rc6 33.Bd3+-) 32.Rd1 (32.Bd3 Qd6+-) 32...a4 (32...Qf5 33.Qa4+-) 33.Rd7 (33.Qa4!? Rb8+-) 33...a3 34.h5! gh5 (34...Qf5 35.Qb7 Rc1 36.Kh2 a2 37.Rg7 Rh1 38.Kg3 Qg4 39.Kg4 gh5 40.Kf5 a1Q 41.Rh7 Kg8 42.Qg7) 35.Bd3 Kg8 36.Qh7 (36.Qb7 Re8 37.Qd5 Qe6 38.Qe6 Re6+-) 36...Kf8 37.Ra7 (better 37.Bb1 Rc1 38.Kh2 Rb1 39.Qb1 Kg8+-) 37...e4 (37...a2 38.Ra2 Qf7 39.Ra4+-) 38.Be4 (38.Nd4 Rc7 39.Rc7 ed3 40.Ra7 Qe7 41.Ne6 Kf7 42.Qg7 Ke6 43.Qe7 Kf5 44.Qf7 Ke5 45.Ra6 a2 46.Qe6) 38...Rc1 39.Kh2 Qd6 (39...Rc7 40.Ra8 Ke7+-) 40.g3 Qc5 41.Qf5 (41.Qg7 Ke8 42.Qd7 Kf8 43.Qf7) 41...Kg8 (41...Qf5 42.Bf5 Bb2+-) 42.Qc5 (42.Qf7 Kh8 43.Qg7) 42...a2 (42...Rc5 43.Ra3 Rc7+-) 43.Ra2 (43.Ra2 Rc5 44.Nh4+-; 43.Qd5 Kh8 44.Qd8 Bf8 45.Qf8) 1-0. Inyama_yentloko (2245) - almasssss (2215), Rated Bullet game, lichess.org, 2019.

7.b5 a6

8.a4 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Bf6 Bf6 12.c4 Bf5 13.d3 Nd7 14.Nbd2 Ra8 15.e4 Be6 16.h3 h6 17.Nh2 Ne5?? (17...Qc3 18.Nb1 Qd4 19.Qc2+=) 18.Ndf3?? (better is 18.f4+/-) 18...Qa2 19.Ne5 Be5 20.Ng4 Bg7 21.Nh2 Kh7 22.Bf3 b6 23.e5 Ra3 24.ed6 ed6 25.Bg4 Qb3 26.Be6 fe6 27.Qe2 e5 28.Rd1 Ra2 29.Qf3 Qc3 30.Nf1 h5 31.Ng3 Rd2 32.Rd2 Qd2 33.Ne4 Qe1 34.Kh2 Qc1 35.Nd6 Qf4 36.Qf4 ef4 37.Kg1?? g5? 38.Kf1?? Kg6? 39.Ke2 Kf6?? 40.Nc8 Ke5 41.Nb6 Kd4 42.Nd5 Be5 43.b6 g4 44.hg4 hg4 45.f3 gf3 46.gf3 1–0. ejdrzej (1640) – prezesvan, kurnik, 2012.

8.a4 ab5 9.ab5 Ra1 10.Ba1 b6 11.c4 Bb7 12.d3 Nbd7 13.Nbd2 d5 14.Bb2 Qc7 15.Qc2 e5 16.cd5 Nd5 17.Nc4 Re8 18.Ra1 Nb4 19.Qc1 e4 20.de4 Be4 21.Bg7 Kg7 22.Qc3 Kg8 23.Nfd2 Bd5 24.Bf3 Ne5 25.Bd5 Nd5 26.Qa3 Nb4 27.Qa7 Qd8 28.Ne5 Re5= 29.Nf3 Rd5 30.h3 Rd1 31.Rd1 Qd1 32.Kh2 Qd6 33.g3 Nd3 34.Qa8 Kg7 35.Kg2 c4 36.Qc6 (36.Qc6 Qf6 37.Qf6 Kf6 38.Nd2+=) 1–0. ejdrzej (1690) – maniek2121 (1620), kurnik, 2012.

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.c4 Nb6 12.Nc3 Bg4 13.Qb3 Nfd7 14.h3 Bf3 15.Bf3 Ne5 16.Be2 Qa8 17.Bb2 Qa5 18.d4 Qb4 19.Qb4 cb4 20.de5 bc3 21.Bc3 Rc8 22.Ba5 Nc4= 23.Rc1 Nb6 24.Rd1 Nc4 25.Rc1 Nb6 26.Rc8 Nc8 27.ed6 Nd6 28.Bc7 Ne4 29.f3 Nc3 30.Kf2 Ne2 31.Ke2 Kf8 32.Kd3 Ke8 33.Kc4 Kd7= 34.Bb6 Be5 35.f4+= Bb8 36.g4 h5 37.Kd5 Bd6 38.Ba5 Bc7 39.Bc7+/- Kc7 40.Kc5 e6 41.b6 Kd7 42.g5 Ke7 43.e4 Kd7 ½–½. Majstorovic,D – Fortin,J, London, Canada, 1992.

8.a4 ab5 9.ab5 Ra1 10.Ba1 Bg4 11.c4 Nbd7 12.h3 Bf3 13.Bf3 Qb6 14.Nc3 Ne5 15.Be2 Ra8 16.Qb3 Qa5 17.Bb2 Qb4 18.Qb4 cb4 19.Nd5 Nd5 20.cd5 Ra2 21.Be5 Be5 22.Rb1 Rd2 23.Bf3 Bc3 24.e4 Kg7 25.Bd1 Kf6 26.f4 h6 27.Kf1 g5 28.fg5 hg5 29.Bf3 Ke5 30.Kg1 Kd4 31.Kh2 Kd3 32.Kg3 Kc2 33.Rf1 b3 34.Kg4 b2 35.e5 Rd4 36.Kf5 b1Q 37.Rb1 Kb1 38.ed6 ed6 39.Kg5 Rb4 40.Bh5 f6 41.Kf5 Rb5 42.Ke6 Be5 43.Bf3 Rb3 44.h4 b5 45.h5 Ra3 46.h6 Ra8 47.h7 b4 48.Bh5 b3 49.Bf7 f5! 50.Bg8 b2 51.Kf5 Kc1 52.h8Q Bh8 (52...Bh8 53.Kg5 Rg8 54.Kf5 b1Q 55.Ke6 Rg6 56.Ke7 Qb7 57.Kf8 Bf6 58.g4 Qe7) 0–1. carocan (1680) – tryskac (1610), kurnik, 2011.

8.ba6 ba6 9.Nc3 Nc6 10.Rb1 Bf5 11.d3 Rb8 12.Qc1 Qc7 13.h3 Be6 14.a3 Rb7 15.Ng5 Rfb8 16.Ne6 fe6 17.Ba1 Nd5 18.Nd5 ed5 19.Rb7 Qb7 20.Bf3 e6 21.c4 Qb3 22.cd5 Ne5 23.Be5 Be5 24.de6 Qe6 25.Qc2 Rf8 26.Bg4 Qd5 27.f4 Bf6 28.Bf3 Qe6 29.Qc4 Qc4 30.dc4 Rb8 31.Rd1 Be7 32.Rd3 a5 33.Bc6 Rb6 34.Bb5 Bf6 35.Kf1 Kf7 36.Ke2 Ke6 37.g4 h6 38.Rb3 Ke7 39.Kd3 Rb8 40.Ke4 Rb6 41.Kd5 g5 42.a4 Bg7 43.Rb1 Bf6 44.Ke4 Kf8 45.Kf5 Kg7 46.Rh1 Rb8 47.Rd1 gf4 48.ef4 Rf8 49.Ke6 Bd4 50.f5 Rf6 51.Kd5 h5 52.Bd7 hg4 53.hg4 Bc3? 54.g5 Rf8 55.Kd6 Bb4 56.Rd5 Rh8 57.Re5 Bd2 58.Re7 Kg8 59.Be6 Kf8 1–0. Gruz,Janos (1835) – Csiba,Tibor, First Saturday FM–B Aug, 2012. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 c5 7.b5)

8.c4 ab5 9.cb5 b6 10.a4 e5 11.d4 ed4 12.ed4 Nbd7 13.Nbd2 Bb7 14.Nc4 Qc7 15.dc5 dc5 16.Nfe5 Ne5? (better is 16...Rfd8=) 17.Be5+/- (worse is 17.Ne5 Rfe8 18.f4 Nd5=) 17...Qd8 18.Bf3 Bf3 19.Qf3 Re8 20.Rfd1 Qe7 21.Bd6 Qe6 22.Ne3?? Nh5?? 23.Re1?? Ba1–+ 24.Ra1 Qb3 25.Be5?? Ra4–+ 26.g4 Ra1 27.Ba1 Ng7 28.Qf6+– Qb1? 29.Nf1?? Kf8+/- 30.Qg7 Ke7 31.Qf6 Kf8 32.Qg7 Ke7 33.Qe5 Kf8 34.Qd6 Kg8 35.Qf6 Kf8 36.Qh8 Ke7 37.Qf6 Kf8= ½–½. horacyad2010 – llaakkii, kurnik, 2011.

8.c4 ab5 9.cb5 b6 10.Nc3 Nbd7 11.d4 Bb7 12.d5 (12.Qd2 e5=) 12...Ne5 (better is 12...Nd5 13.Qc2 Nc3 14.Bc3 Nf6-/+) 13.Ne5+= de5 14.e4 e6 15.Bf3 ed5 16.Nd5 (16.ed5!? Re8 17.Re1=) 16...Nd5 17.ed5 f5 18.Qb3 Qd6 19.Rfe1 (better is 19.Rfd1!?=) 19...e4-/+ 20.Be2 Bd5 (20...Qd5?? 21.Bc4 Bb2 22.Bd5 Bd5 23.Qd5 Kg7 24.Qb7 Kh8 25.Qb6 Ba1 26.Ra1+–) 21.Bc4 Rad8 22.Bg7 Kg7 23.Rad1 Bc4 24.Qc3 Qf6 25.Qc4 Rd1 26.Rd1 Rd8 27.Rd8 Qd8 28.g3 Qd1 29.Kg2 Qf3 30.Kg1 e3 31.Qc3 Kf7 32.Qe3? Qe3–+ 33.fe3 Ke6 34.Kf2 Kd5 35.Kf3 Kc4 36.Kf4 Kb5 37.Kg5 c4 38.Kh6 c3 39.Kh7 c2 40.Kg6 c1Q 41.Kf5 Qe3 0–1. francislaw – mapaj, kurnik, 2012.

8.c4 ab5 9.cb5 Nbd7 10.a4 Nb6 11.Qb3 Be6 12.Qc2 Nbd5 13.Nc3 Nb4 14.Qc1 Nfd5 15.Nd5 Bd5 16.Bg7 Kg7 17.Qb2 Kg8 18.d4 b6 19.Rfd1 Be6 20.dc5 bc5 21.Ng5 Qc8 22.Bf3 Ra5 23.Ne6 Qe6 24.Qd2 Rfa8? 25.Ba8+– Ra8 26.a5 Qd7 27.b6 Qb5 28.h3?? Ra5= 29.Ra5 Qa5 30.b7 Qa7 31.e4 Qb7 32.e5 d5 33.Qf4 Qd7 34.Rc1? Nd3–+ 35.Qe3 Nc1 36.Qc1 c4 37.Qc3 e6 38.g3 Qb5 39.Kg2 Qb3 40.Qd4 c3 41.Qa7 Qc4 42.Qa8 Kg7 43.Qd8 Qe4 44.f3 Qe5 45.Qc8 Qe2 46.Kg1 c2 47.h4 Qd1 48.Kf2 Qd2 49.Kf1 c1Q 50.Qc1 Qc1 51.Ke2 Qc2 52.Ke3 Qc3 53.Kf4 e5 54.Kg4 f5 55.Kh3–+ g5 56.hg5 Kg6 57.Kh4 h6 58.gh6 Qf3 59.h7 Qg4# 0–1. elsh1403 (1635) – zkazdymgram, kurnik, 2012.

8.c4 ab5 9.cb5 Bg4 10.a4 Nbd7 11.d4 cd4 12.Nd4 Be2 13.Qe2 e5 14.Nf3 e4 15.Nd4 d5 16.Nc3 Nc5 17.Ba3 b6 18.Nc6 Qc7 19.Rfd1 Nd3 20.Bf8 Rf8 21.Rab1 Nd7?? 22.Nd5 Qd6 23.Ndb4 N7c5 24.Nd3 ed3 25.Qd2 Be5 26.Ne5 Qe5 27.a5 ba5 28.Qa5 Qf5 29.b6 d2 30.Qd2 Ne4 31.Qe2 Nc3 32.Qd2 Nb1?? 33.Qb2 Nc3 34.Qc3 Rb8 35.Qc7 Ra8 36.b7 Rf8 37.b8Q Rb8 38.Qb8 Kg7 39.Qc7 Qb5 40.h3 Qe2 41.Rd7 Qe1 42.Kh2 Qf2 43.e4 Kh6 44.Qg3 Qf6 45.Rd5 Kg7 46.Qg5 Qc6 47.Re5 Qc7 48.g3 f6?? 49.Qf4 Qe5 50.Qe5 fe5 51.Kg2 Kf6 52.Kf3 Ke6 53.Kg4 h6 54.h4 Kf6 55.h5 Kg7 56.hg6 Kg6 57.Kh4 Kf6 58.g4 Kg7 59.g5 Kg6 (59...Kg6 60.gh6 Kh6=). elsh1403 – julo12, kurnik, 2011.

7.b5 b6

8.a4 Bb7 9.c4 Nbd7 10.d4 cd4 11.ed4 Rc8 12.Nc3 e6 13.Ba3 Qe7 14.Ne5 h5 15.f4 Ne4 16.Ne4 Be4 17.Rc1 h4 18.Qb3 Rfd8 19.Qe3 Bf5 20.Nc6+/- Qf6? 21.Bd6+– Rc6 22.bc6 Nf8?? 23.Be5 Qe7 24.Bg7 Kg7 25.d5! Qf6 26.c7 Rc8 27.d6 Nd7 28.Qc3 e5 29.fe5 Ne5 30.Bf3 h3?? 31.Bb7+– hg2 32.Rf5 Qf5 33.Qe5 Qe5–+ 34.Bc8 (34.Bc8 Qd6 35.Bb7 Qc7 36.Bd5–+). elsh1403 – okular59, kurnik, 2012.

8.c4 a6 9.a4 Bd7 10.Nc3 Ra7 11.d4 d5? (11...Bf5 12.Bd3=) 12.Nd5 Nd5 13.cd5 Bf5 14.Nh4 Qd5 15.Nf5 Qf5 16.Bd3 Qd5 17.Qg4 cd4 18.Bd4 Bd4 19.Qd4 Qd4 20.ed4 Rd7 21.ba6+/- Rd4 22.Bb5 Nd7 23.Rfd1 Rd1 24.Rd1 Nc5 25.a7 Ra8 26.Rd4 Ra7-/+ 27.Rf4 Kg7 28.Bc4? e6 29.g4?? Ra4–+ 30.Kg2 b5! 0–1. elsh1403 (1610) – kofianal, kurnik, 2011.

8.c4 Bb7

9.a4 d5 10.Nc3?? (10.d4 Nbd7=) 10...e6?? (better is 10...d4–+) 11.Ng5 Nbd7 12.Bf3 Qc7 13.cd5 ed5 14.Rc1 Ne5 15.d4 Nf3 16.Qf3 c4 17.Ba3 Rfe8 18.Rfe1 h6 19.Nh3 Rad8 20.Nf4 Ne4 21.Ne4 de4 22.Qg3 g5 23.Nh5 Qg3 24.Ng3 Bd5 25.Nf5 Re6 26.Ng7 Kg7+= 27.f3 f5 28.Kf2 Rde8 29.Rc3 Kg6 30.a5 ba5 31.Bc5 a6 32.b6 a4 33.Ra3 Bc6 34.Rb1 Bb5. elsh1403 – 18smok (1755), kurnik, 2011.

9.a4 Nbd7 10.Nc3 Ne4 11.d4 Ndf6 12.Nd2 Rc8 13.f3 (13.d5 Nc3 14.Bc3 a5+=) 13...Nc3 14.Bc3 cd4 15.Bd4 e5 16.Bb2 Nd7 17.Ne4 Be4 18.fe4 Nc5 19.Bg4 Rc7 20.Qd5 h5 (20...Qg5!? 21.Qd6 Rb7=) 21.Bh3+= Qe7 22.a5 Nb3 23.ab6 ab6 24.Ra6 (better is 24.Ba3 Nc5 25.Bb4+=) 24...Rb8?? (better is 24...Na5 25.Rc1 Qh4 26.Qd6 Rc4+=) 25.Rf7!!+– Qf7 26.Be6 Qe6 (26...Rbb7 27.h4 Qe6 28.Qe6 Kh7 29.Ba3+– (29.Qd6?! Rd7 30.Qb4 Rd1 31.Kh2 Nd2+–)) 27.Qe6 Kh7 28.Qd6 Rcb7 29.Ra7! Nc5 30.Rb7 Rb7 31.Ba3 Nd7 32.Qe6 Ra7 33.Bd6 Nc5 34.Bc5 bc5 35.b6 (35.b6 Ra6 36.Qc6+–) 1–0. Dumontelle,Joe – Beaudoin,P, corr, 1980.

9.d3 Nbd7 10.Qc2 Qc7 11.a4 a5 12.ba6 Ra6 13.Nc3 Rc8 14.Rfc1 Qd8 15.Qb3 Nb8 16.Nd2 Nc6 17.Bf3 Na5 18.Qb5 Ra7 19.Bb7 Rb7 20.Nb3 Rcb8 21.Nd2 Nd7 22.Nd5 Ne5 23.Ra3 e6 24.Nf4 Nec6 25.Bg7+= Kg7 ½–½. Hug,W – Andersson,Ulf, Biel, 1977.

9.d3 Nbd7 10.Nc3 e6 11.a4 d5 12.Qc2 Qc7 13.h3 Rfd8 14.Ra3 (14.cd5 ed5 15.Rfc1 Rdc8=) 14...Rac8 (14...dc4=) 15.a5 Nf8 16.a6 (16.Rfa1 dc4 17.dc4 Rd7+=) 16...Ba8= 17.Nb1 N8d7 18.Nbd2 Qd6 19.Rd1 Qe7 20.Raa1 Ne8 21.Bg7 Ng7 22.Rac1 Nf5 23.Qc3 Nf6 24.Qe5 Nd7 25.Qa1 Nf6 26.Qe5 Nd7 27.Qa1 ½–½. Kaenel,H – Zueger,B, Switzerland, 1989.

9.d3 Nbd7 10.Nbd2 e6 11.Qc2 d5 12.Rfd1 Qc7 13.h3 Rfd8 14.Rac1 Rac8 15.Nf1 a6 16.a4 a5 17.Ng3 e5 18.Rb1 d4 19.e4 Rf8 20.Bc1 Ne8 21.Nh2 f5 22.f3 f4-/+ 23.Nh1 h5 24.Bd2 g5 25.Rf1 Ndf6 26.Nf2 Rd8 27.Qd1 Bc8 28.Rb2 Be6 29.Rc2 Kh7 30.Nh1 Ng8 31.Kf2 Qd7 32.Ke1 Nef6 33.Nf2 Nh6 34.Rb2 Rg8 35.Bc1 Bf8 36.Kd2 g4 37.hg4= hg4 38.fg4 Nhg4 39.Nhg4 Ng4 40.Ng4 Bg4 41.Bg4 Qg4+= 42.Qg4 Rg4 43.Rg1 Bh6 44.Ke1 Rdg8 45.Kf1 Rg3–+ 46.Rb3 R8g6 47.Bd2? f3–+ 48.Bh6 fg2 49.Kf2 Kh6 50.Ra3 Kh5 51.Ke2 Kh4 0–1. Weiss,M – Burschowsky,M, Austria, 1995.

9.d3 Nbd7 10.Nbd2 Re8 11.a4 a5 12.Ra2 e5 13.Qa1 Qc7 14.Rc1 d5 15.cd5 Bd5 16.Nc4 e4 17.de4 Re4 18.Ra3 Rae8 19.Nfd2 R4e6 20.Rd3 h5? 21.Rd5!+– Nd5 22.Bg7 f6 23.Bh6 Kh7 24.Bf3 Nb4 25.Bf4 Qd8 26.h4 g5 27.Bh5 Rg8?? 28.Bf7 gf4 29.Be6 fe3 30.Bg8 Qg8 31.Ne3 Nd3 32.Qb1 N7e5 33.f4 Qg3 34.Nd5?? Qh4?? 35.Rf1+– Ng4 36.Qd3 Kg7 37.Qh3 Qh3 38.gh3 Nh6 39.Nb6 Nf5 40.Nbc4 Kf8 41.Na5 Nd6 42.Nac4 Nb7 43.Ne4 f5 44.Ned6 Nd8 45.Nf5 Nb7 46.Re1 Nd8 47.b6 Nc6 48.a5 Nb4 49.b7 Na6 50.Re6 Nb8 51.a6 Kf7 52.a7 Nd7 53.a8Q Nb8 54.Re7 Kg6 55.Qb8 Kf5 56.Qf8 Kg6 57.Rg7 Kh5 58.Qh8# 1–0. Starr,Albert – Lupton,Stephen, Winter TNM San Francisco, 2006.

9.d4 Nbd7 10.Nbd2 Ne4 11.a4 e5 12.Qc2 Nd2 13.Nd2 ed4 14.ed4 cd4 15.Nf3 d3 16.Bd3 Bb2 17.Qb2 Bf3 18.gf3 Qg5 19.Kh1 Qf4 20.Be4 Rac8 21.Rac1 Ne5 22.Bd5 Nf3 23.Bf3 Qf3 24.Kg1 Qg4 25.Kh1 Rc4 0–1. Orang4Utan (1875) – luismaxx101 (1980), lichess.org, 2020.

7.bc5 dc5

8.Na3 Nc6 9.Rb1 b6 10.Bc4 (10.Nc4 Be6=) 10...Bg4 (10...a6 11.d4=) 11.h3 Bf3 (11...Bd7 12.d4=) 12.Qf3+= (< 12.gf3 a6-/+) 12...Na5 13.Bd3 (13.Be2 Qd7+=) 13...Rc8 (13...Qd5 14.Qd5 Nd5 15.Nc4 Nc4 16.Bc4=) 14.Bc3 (14.Ba6 Ra8+=) 14...c4 15.Be2 a6? (better is 15...Rc5+=) 16.Ba5+– ba5 17.Nc4 Nd5 (17...e5 18.Rfc1+–) 18.Qe4 (18.e4 Nb4 19.c3 Nc6+–) 18...e6 (18...e5 19.Qf3+/-) 19.Rb7 (19.Rfc1 Rc5+–) 19...Nb4 (19...e5 20.Ne5 Be5 21.c4 Ne3 22.de3+/- (22.fe3?! Qd2 23.Bg4 Rc7+=)) 20.c3 (20.a3 Nd5+–) 20...Nd5 21.a4 Nf6 22.Qe5 Nd5 23.Qd6 Rc4? 24.Qd8 Rd8 25.Bc4 (25...Nf6 26.d3+–) 1–0. guest991 – PGHTHRMAL, ICC, 2003.

8.Nc3 a6 9.Rb1 b5 10.a3 e6 11.Ba1 Bb7 12.Re1 Nc6 13.h3 (13.d3 Qa5=) 13...Nd5 (13...Qa5 14.Bb2=+) 14.Nd5 ed5 (14...Ba1 15.Ra1 Qd5 16.Rb1=) 15.Bg7+= Kg7 16.d4 (16.a4 b4=) 16...c4= 17.c3 Na5 (17...Bc8 18.Ra1=) 18.Nd2 (18.a4 ba4 19.Qa4 Bc8+=) 18...f5 (18...Bc8 19.Bf3+=) 19.Bf3 (19.a4 ba4 20.Qa4 Bc6+=) 19...Qe7 (19...Qd7 20.a4=) 20.Qc2 Rad8 (better 20...Bc6+=) 21.e4?? (better 21.a4 ba4 22.Qa4+–) 21...fe4-/+ 22.Be4? (better 22.Bg4!?-/+) 22...de4–+ 23.Ne4 (23.a4 Qh4 24.Ne4 Be4 25.Re4 Rf2–+) 23...Be4 (23...Qa3?! 24.Nc5 Rfe8 25.Rf1-/+) 24.Re4 (24.Qe4 Qa3 25.Qe7 Qe7 26.Re7 Kh6–+) 24...Qf6 (better 24...Qa3!? 25.Rbe1–+) 25.Rbe1 Nb3 (25...Rd6 26.a4–+) 26.Re7 (26.Re6 Qh4–+) 26...Kg8 27.Qe4? (better 27.R7e6 Qf7 28.Ra6–+) 27...Qf2 28.Kh1 Rf7 (28...Rf6 29.Qb7 Rf7 30.Qa6 Re7 31.Re7–+) 29.Qe6 Rdf8 (29...Qf6 30.Rf7 Qe6 31.Re6 Kf7 32.Ra6–+) 30.Qa6 Re7 (30...Nc1 31.Qb5 Nd3 32.R1e4–+) 31.Re7 Qf1 32.Kh2 Qf4 33.Kg1 Nd2 Threatening mate: Nf3 34.Qe6 Kh8 35.d5?? (35.Re8 Qf2 36.Kh1 Re8 37.Qe8 Kg7 38.Qb5 Qe1 39.Kh2 Nf1 40.Kg1 Ne3 41.Kh2 Kh6–+ (41...Qc3?! 42.Qe5 Kf7 43.Qc7 Ke6 44.Qc6 Kf5 45.Qf3 Kg5 46.h4 Kh6 47.Qf4 Kg7 48.Qc7 Kg8 49.Qd8 Kf7 50.Qd7 Kf6 51.Qd6 Kf7 52.Qd7 Kf8 53.Qd8 Kf7 54.Qd7=)) 35...Qg3 (35...Nf3 36.Kf1 Qc1 37.Kf2 Ne5 38.Rf7 Rf7 39.Qf7 Nf7 40.Ke2 Qc3 41.d6 Qd3 42.Kf2 Qd2 43.Kf3 Ng5 44.Kg3 Qd6 45.Kf2 Qf4 46.Kg1 c3 47.a4 c2 48.g4 c1Q 49.Kg2 Qcf1) 36.Qe2?? (36.Re8 Re8 37.Qe8 Kg7 38.Qe7 Kh6 39.Qf8 Kh5 40.Qe7 Nf3 41.Kf1–+) 36...Rf1 (36...Nf3 37.Kf1 Nd4 38.Kg1 Ne2 39.Re2 Rd8 40.Re6 Rd5 41.Re8 Kg7 42.Re7 Kh6 43.Rd7 Rd7 44.Kf1 Rd2 45.a4 Qf2) 37.Qf1 Nf1 38.Kf1 Qf4 (38...Qc3 39.Rd7 Qf6 40.Ke2 Qe5 41.Kd1–+) 39.Kg1 (39.Ke2 Qg5 40.Re8 Kg7–+) 39...Qf6 (better 39...Qc1!? 40.Kh2 Qc3 41.Re6–+) 40.Re8 (40.Re3 Qd6–+) 40...Kg7 41.Rb8 (41.Re3 Qf8–+) 41...Qc3 42.d6 (42.Rb5 Qe3 43.Kh2 c3 44.Rb7 Kf6–+) 42...Qd4 43.Kh2 (43.Kf1 c3 44.Rc8–+) 43...Qd6 44.Kg1 c3 (better 44...Qb8 45.Kf1–+) 45.Rb7 Kh6 (45...Kf6 46.Kf2 c2 47.g4 c1Q 48.Rb6 Qb6 49.Kg3 Qbe3 50.Kh4 Qce1) 46.Rb5 c2 (46...c2 47.Rc5 Qc5 48.Kh2 Qe5 49.Kg1 c1Q 50.Kf2 Qee3) 0–1. aravind555 (1805) – macabro_pl (1790), lichess.org, 2020.

8.Nc3 Bf5=.

8.c4 Nc6 9.d3 b6 10.Nbd2 Bb7 11.Qc2 Qc7 12.h3 a5 13.Rab1 Nb4 14.Qd1 (better is 14.Qa4!?=) 14...Na2-/+ 15.Be5 Qc6 16.d4 cd4 17.ed4 Nb4 18.d5 Qd7 19.Qb3 Ne8 20.Bg7 Ng7 21.Qc3 Nf5 22.Rb4 ab4 23.Qb4 Qd6 24.Qc3 Rac8 25.Ne4 Qd7 26.Ne5 Qc7 27.Qb4?? Qe5–+ 28.Bd3 Nd6 29.f4 Qd4 30.Nf2 Nc4 31.Bc4 Qc4 32.Qb6 Bd5 33.Ng4 Qe4 34.Qb2 Rc2 35.Nh6. horacyad2010 – llaakkii, kurnik, 2011.

8.d3 b6 9.Nbd2 Qc7 (9...Bb7 10.Be5=) 10.Be5 Qc6 11.Bc3 (11.Rb1 Nbd7=) 11...Rd8 12.Qc1 (12.Ne5 Qe6 13.Bb2 Nc6 14.Nc6 Qc6+–) 12...Nbd7 13.Ng5 (13.Qb2 Qe6=) 13...Qa4 (13...Qd6 14.Nde4 Qc7 15.Bf3=) 14.Qb2 Bb7 15.Qb3 Qb3 16.ab3 Rac8? (better is 16...a6=) 17.Ra7+/- Bc6 18.Bf3 (18.Rfa1 h6 19.Ngf3 Nd5 20.Bg7 Kg7+/-) 18...Bf3 19.Ngf3 Ra8 20.Rfa1 Ra7 21.Ra7 Nd5 22.Bg7 Kg7 23.c4 Nc3 24.d4 e6 25.g4 h5 26.g5 Kf8 (26...b5 27.dc5 Nc5 28.b4+/-) 27.Kg2+– Nb8 28.Ne5 cd4 29.Rf7 Ke8 30.Rh7 de3 31.Rh8 Ke7 32.Ng6 Kd7 33.Rd8 Kd8 34.fe3 Nc6 35.Nf4 Nd1 36.e4 Ke7 37.Nh5 Kf7 38.h4 Ne5 39.Kg3 Nd3 40.Nf4 Nf4 41.Kf4 Kg6 42.Ke5 Nf2 43.Ke6 Kh5 44.Kf7 Nd3 45.b4 Ne5 46.Ke6 Ng6 47.c5 (47...bc5 48.bc5 Nh4 49.c6+–) 1–0. Woschkat,Karl_Heinz – Owens,Robert, compuserve, 1996.

8.d4 cd4 9.Nd4 a6 10.Bf3 e5 11.Nb3 e4 12.Be2 Qd1 13.Rd1 Nc6 14.a3 Be6 15.Nc5 Bc8 16.Nd2 Re8 17.Rab1 b6 18.Na4 b5 19.Nc5 Ra7 20.a4 b4 21.Bf6+– Bf6 22.Nde4 Be5 23.Nd2 a5 24.Bb5 Rc7 25.Ndb3 Rd8 26.Nd3 Bg7 27.Bc6 Rc6 28.Na5 Rc2 29.Nb4 Rd1 30.Rd1 Rc3 31.Nac6 Bf8? 32.h3 Bb7 33.Nd4?? Bb4-/+ 34.Rb1 Bd6?? 35.Nb5+– Be4 36.Nc3 Bb1 37.Nb1 Bb4 38.Kf1 f5 39.Ke2 Kf7 40.Kd3 Ke6 41.Kc4 Be1 42.f3 Bf2 43.e4 fe4 44.fe4 Ke5 45.Kd3 Kf4 46.Ke2 Bc5 47.Nc3 Kg3 48.Kf1 h5 49.Nd5 g5 50.e5 g4 51.hg4 hg4 52.e6 Kh4 53.e7 Be7 54.Ne7 Kg5 55.a5 Kf6 56.a6 Ke7 57.a7 Kf6 58.a8R Ke5 59.Kf2 Kf4 60.Ra4 Kg5 61.Kg3 Kf5 62.Rg4 Ke5 63.Kf3 Kd5 64.Re4 Kc5 65.g4 Kd5 66.g5 Kc5 67.g6 Kd5 68.g7 Kd6 69.g8Q Kc5 70.Qc8 Kd6 71.Rd4 Ke5 72.Qd7 Kf6 73.Re4 Kg5 74.Qf7 Kh6 75.Rh4 Kg5 76.Rg4 Kh6 77.Qg6 1–0. wera25 (1685) – pl0009, kurnik, 2012.

8.d4 cd4 9.Nd4 Nc6 10.Nc6 bc6 11.c4 Qb6 12.Qc2 Rb8 13.Bd4 c5 14.Bc3 Bf5 15.Bd3 Bd3 16.Qd3 Nh5 17.Bg7 Ng7 18.Nc3 Qf6 19.Nd5 Qe5 20.f4 Qd6 21.a4 Rfd8 22.Qc3 e6 23.Nf6 Kh8 24.Rfd1 Qe7 25.Rd8 Rd8 26.Rb1 Qd6 27.h3 h5? 28.Rb7+– Rf8 29.Ra7 Qb6 30.Rd7 Qb1 31.Kh2 Qf1 32.a5 Qb1 33.a6 Qb8 34.a7 Qa8 35.Qe5 (35.Qe5 Qa7 36.Ra7 Nf5 37.Nd7 Kg8 38.Nf8 Nd6 39.Qf6 e5 40.Ne6 Nf5 41.Qf7 Kh8 42.Qf8#) 1–0. tadziczek – delonghi, kurnik, 2012.

8.d3 Nc6

9.Nc3=.

9.Nbd2 b5 10.a3 a6 11.c4 Bf5 12.Qc2 b4 13.e4 Bg4 14.h3 Be6 15.Ng5 Bd7 16.Ngf3 Qb6 17.Rab1 Rfd8 18.Rfd1 a5 19.ab4 ab4 20.Nb3 Na5 21.Ne5?? Nb3?? 22.Qb3?? Ba4–+ 23.Qa2 Bd1 24.Qa8 Be2 25.Qa4 Nh5 26.f4 Nf4 27.Nc6 Bb2 28.Nd8 Qd8 29.Rb2 Bd3 30.Qc6 Qd4 31.Kh2 Qb2 32.Qc5 Be4 33.Qc8–+ Kg7 34.Qg4 Qg2 35.Qg2 Ng2 36.Kg3 b3 37.Kf2 b2 38.h4 b1Q 39.h5 Qc2 40.Kg3 Qc4 41.hg6 hg6 42.Kf2 Qc2 43.Kg3 Qd3 44.Kf2 Qf3 45.Kg1 Bd3 46.Kh2 Qf4 47.Kg2 Be4 48.Kg1 Qf3 49.Kh2 Qg2# 0–1. ejdrzej (1755) – alek1 (1605), kurnik, 2012.

9.Nbd2 b6 10.c4 Bb7 11.a3 Qc7 12.Qc2 Rad8 13.Rab1 e5 14.Rfd1 Rfe8 15.h3 Nh5 16.Ng5 Nf6 17.Nge4 Ne4 18.Ne4 f5 19.Ng5 Qe7 20.Nf3 e4 21.de4 fe4 22.Nh2 Bb2 23.Qb2 Ne5 24.Ng4 Ng4 25.Bg4 Qg7 26.Qc2 Qe5 27.Rd2 Rd2 28.Qd2 Bc8 29.Bc8 Rc8 30.Qd7 Rc7 31.Qd8 Kg7 32.Rd1 Re7 33.Rd5 Qe6 34.h4 Rf7 35.Qd6 Qd6 36.Rd6 Re7 37.g4 Kf7 38.g5 Re6 39.Rd5 Ke7 40.Kg2 Rd6 41.Rd6 Kd6 42.Kf1 Ke5 43.Ke2+= a6 44.Kd2?? b5 45.Kc3 Kd6 46.cb5 ab5 47.a4? Kc6 48.ab5 Kb5 49.Kb3 c4 50.Kc3 Kc5 51.Kc2 Kb4 52.Kb2 c3 53.Kc1 Kc4 54.Kc2= Kb4 55.Kb1?? Kb3–+ 56.Kc1 c2 57.h5 gh5 58.g6 hg6 59.Kd2 (59.Kd2 h4 60.f4 h3 61.Ke2 h2 62.Kf2 h1Q 63.Kg3 c1Q 64.f5 Qe3 65.Kg4 Qh5#). ejdrzej (1725) – profesor56, kurnik, 2012.

9.Nbd2 b6 10.c4 Bb7 11.a3 Qc7 12.Qc2 e5 13.h3 Rfe8 14.Rab1 Rad8 15.Rfd1 e4 (15...Nd7!?=) 16.Ne4+= Ne4 17.de4 Rd1 18.Rd1 Bb2 19.Qb2 Re4 20.Qf6 Re6 21.Qc3 Ne5 22.Ne5 Re5 23.Rd8 Qd8 24.Qe5 Qd7 25.Bg4 Qc6?? 26.Qb8+– Kg7 27.Bf3 Qd7 28.Qb7 Qd3 29.Bd5 Qb1 30.Kh2 Qf5 31.f4 g5 32.Qc7 gf4 33.Qf4 Qf4 34.ef4 1–0. ejdrzej (1700) – maniek2121 (1690), kurnik, 2011.

9.Nbd2 Bg4 10.c4 a6 11.a3 b5 12.cb5 ab5 13.Qc2 Qb6 14.h3 Bf5 15.e4 (15.Rfc1!?+/-) 15...Be6= 16.Rfb1 Rac8 17.Ng5 Bd7 18.Ngf3 Be6 19.Qd1 Na5 20.d4 c4 21.d5 Bd7 22.Bd4 Qa6 23.a4 ba4 24.Rb6 Qa8 25.Ne5 Nb3?? 26.Ndc4?? Na1+= 27.Qa1 Be8 28.Ng4 Ne4?? 29.Bg7+– Qd5 30.Bf8 f6 31.Be7 Rc4 32.Bc4 Qc4 33.Nf6 Nf6 34.Qf6 Qc1 35.Kh2 Qc7 36.Rd6 a3 37.Qf8 1–0. ejdrzej (1705) – brazilianu, kurnik, 2011.

9.Nbd2 Bg4 10.Nh4 Be2 11.Qe2 Nb4 12.Nc4 b5 13.Na3 c4 (better is 13...a6!?+=) 14.dc4+/- (worse is 14.Nb5 cd3 15.cd3 A) worse is 15...Nd3 16.Rad1 Qb8 17.Bf6 Bf6 18.Ng6 (18.Rd3?! Qb5 19.Nf3 Rad8=) 18...hg6 19.Qd3+/-; B) 15...Qd3 16.Qd3 Nd3=) 14...bc4 15.Nc4 Rc8 16.a3 Nc6 17.Ne5 Ne5 18.Be5 Qa5 19.Bd4 (19.Nf3!?+/-) 19...e5= 20.Bb2 Rb8 21.Rab1 Qa4 (21...e4!?+=) 22.Nf3+/- e4 23.Nd4 Nd7 24.Qg4 Nf6 25.Qf4 Rfe8 26.Qc7 Rbc8 27.Qd6 Qa5 28.Nc6 Qh5?? 29.Ne7 Re7 30.Qe7 Ng4 31.h3 Ne5 32.Be5 Be5 33.Rb7 g5 34.Qe5 Rc2 35.Rb8 (35.Rb8 Rc8 36.Rc8#) 1–0. sunnyda – terry2100, kurnik, 2011.

6.0-0 c6

7.c4 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.0-0 c6).

7.d4 b5 8.Nbd2 Bb7 9.c4 bc4 10.Nc4 c5 11.dc5 dc5 12.bc5 Nc6 13.Qc2 Nb4 14.a3 Nc2 0–1. Orang4Utan (1720) – EG_CHESS (1720), lichess.org, 2017.

7.d4 Nbd7 8.Nbd2 Qc7 9.c4 Re8 10.Qc2 e5 11.Ne1 (11.Rfd1 ed4 12.Nd4 Ne5+=) 11...ed4= 12.Bd4 Nf8 (12...c5 13.bc5 dc5 14.Bc3=) 13.Nd3 N6d7 (13...Bf5!?=) 14.Bg7+= Kg7 15.Rfd1 Rd8 16.Qc3 f6 (16...Kg8 17.a3+/-) 17.f4 (17.Ne4!?+/-) 17...Kg8 18.c5 d5 19.Nb3 (19.e4 Ne6 20.Bf3 Nf4 21.Nf4 Qf4 22.ed5 Ne5+/-) 19...Re8 20.Qd2 a6 21.a4 Ne6 22.Bg4 Ng7 23.Qf2?? (23.Bf3 Nf8+=) 23...f5?? (better 23...Nc5 24.Nbc5 Bg4-/+) 24.Bf3+= Nf6 25.Re1 Re4? (better 25...Ne4 26.Be4 fe4=) 26.Be4+- Ne4 27.Qb2 Nh5 28.g3 (28.Red1 Be6+-) 28...Qg7 29.Qg7 Kg7 30.Nd4 Nd2 (30...Bd7 31.b5!+-) 31.Red1 (31.b5 Bd7+-) 31...Ne4 (better 31...Nc4+-) 32.Re1 (32.b5 cb5 33.ab5 Nhf6+-) 32...Bd7?? (32...Nd2 33.b5 Bd7+-) 33.Kg2 Re8 34.Kf3 (34.b5 a5+-) 34...Bc8 (34...Nd2 35.Kf2+/-) 35.Nf2 (35.b5 Bd7+-) 35...g5 36.Ne4 de4 37.Kf2 gf4 38.gf4 Be6 (38...Nf6 39.b5 Ng4 40.Ke2 Nh2 41.ba6 ba6 42.Nc6+-) 39.Ne6 (39.Rg1!? Kf7 40.Rg5 Nf6 41.Nf5 Bf5 42.Rf5 h6+-) 39...Re6 40.Rg1 Rg6 41.Rg6 hg6 (41...Kg6 42.b5!+-) 42.Rd1 Nf6 43.Rd7 (better 43.Rd8+-) 43...Nd7-+ 44.Ke2 Nc5! 45.Kf2 (45.bc5 Kf7 Combination) 1-0. AlbertOOO44444 - profedunca (2525), Casual Bullet game, lichess.org, 2020.

6.0-0 Nc6

7.a3 a6 8.d4 Bf5 9.d5 Ne5 10.Ne5 de5 11.c4 (11.Be5 Qd5 12.Bc7 Qd1 13.Bd1 Ne8–+) 11...e4 (11...Qd6 12.Bd3=) 12.Nd2 (12.g4 Bd7 13.g5+=) 12...e6 (better is 12...Qd6!?+=) 13.g4+/- Ng4 (13...Bg4 14.Bg4 ed5 15.Rc1+/-) 14.Bg7 Kg7 (14...Ne3 15.fe3 Kg7 16.Ne4+–) 15.Bg4 Qg5 16.h3 h5 17.Ne4 Be4 18.Qd4 e5 (18...Kh6 19.Qe4 hg4 20.Qg4 ed5 21.Qg5 Kg5 22.cd5+/-) 19.Qe4+/- (19...hg4 20.Qg4 Qg4 21.hg4+/-) 1–0. Waite,Daniel – Gantzert,Rene, CompuServe, 1994.

7.a3 e5 8.c4 Bg4 9.Nc3 a6 10.Qc2 h5 11.d4 ed4 12.Nd4 Nd4 13.ed4 Be2 14.Qe2 Re8 15.Qf3 c6 16.Rad1 Qc7 17.Rfe1 d5 18.cd5 cd5 19.Nd5 Nd5 20.Re8?? (better is 20.Qd5 Qc2 21.Bc1+/-) 20...Re8–+ 21.Qd5 Qc2 22.Rf1 Qb2 23.Qa5?? Bd4 24.Qc7 Qf2! 25.Rf2 Re1 0–1. Neumann,Frank – Szokol,Imre, OP–2011–0-01729, 2011.

7.a3 e5 8.d3 Nd7 9.Nbd2 f5 10.c4 Ne7 11.Qc2 Nf6 12.Rfe1 Be6 13.Rad1 h6 14.h3 g5 15.Nh2 f4 16.ef4 gf4 17.d4 Bf5 18.Bd3 Bd3 19.Qd3 Nd7 20.de5 de5? 21.Ne4 Nb6 22.Qd8?? Rad8= 23.Ng4 Nc4-/+ 24.Bc1 b6 25.Rd8 Rd8 26.Ngf6 Kf7 27.Nh5 Bh8 28.g3 fg3 29.fg3 Bg7 30.Rf1 Kg6 31.g4 Nd5 32.Ng7 Kg7 33.Rf2 Nde3 34.Be3 Ne3 35.Re2 Nc4 36.Ng3 1–0. exp2005 – ajzerf, kurnik, 2011.

7.a3 e5 8.d3 Ne8 9.c4 f5 10.h3 Ne7 11.Nc3 h6 12.Nd5 c6 13.Ne7 Qe7 14.Qb3 Be6 15.Qc2 g5 16.Nh2 Qf7 17.Rac1 Qg6 18.Qd1 Nf6 19.g3 h5 20.Nf3 f4 21.ef4 gf4 22.Nh4 Qg5 23.Nf3 Qg6 24.Nh4 Qh6 25.Kh2 Nh7 26.Bh5?? Ng5?? 27.g4 Bf6 28.Ng6+/- Rfd8 29.Qe2?? Bf7 30.h4 Bg6 31.hg5 Bg5 32.Rh1 Bh5 33.gh5+= f3 34.Qf3 Rf8 35.Qe4?? Bc1 36.Bc1-/+ Qf6 37.Rg1 Kh8 38.Be3 Rg8 39.Rg6 Rg6 40.Qg6?? Qg6 41.hg6 Kg7 42.f4 Kg6 43.fe5 de5 44.Kg3 Rf8 45.d4 ed4 46.Bd4 b6 47.a4 Rf1 48.a5 Rd1 49.Bf2 ba5 50.ba5 a6 51.Kf3 Kf5 52.Bb6 Ke5 53.c5? Kd5 54.Ke3 Kc4 55.Ke2 Rd5 56.Ke3 Kb5 57.Ke4 Rd1 58.Ke3 Ra1 59.Kd3 Ra5 60.Ba5 Ka5 61.Kc4 Ka4 62.Kc3 Kb5 63.Kd4 a5 64.Kc3 Kc5 65.Kb3 Kb5 66.Ka3 a4 67.Kb2 Kb4 68.Kc2 a3 69.Kb1 c5 70.Ka2 c4 (70...c4 71.Kb1 Kb3 72.Kc1 a2 73.Kd2 c3 74.Ke3 c2 75.Kf3 a1Q 76.Ke4 Qf6 77.Ke3 c1Q 78.Ke4 Qcf4 79.Kd5 Q6d6#) 0–1. ricardow71 – angel2610, kurnik, 2012.

7.a3 e5 8.d4 e4 9.Ng5=.

7.a3 Bg4 8.c4 (8.d4 a5=) 8...e5 (8...a5 9.b5 Nb8 10.Bf6 Bf6 11.d4=) 9.h3 Bf3 10.Bf3 Qc8 (10...e4 11.Be2=) 11.d4 e4 12.Be2 Ne7 13.Nd2 d5 14.c5 c6 (14...Qe6=) 15.f3 (15.Rb1 Qd7+=) 15...ef3 (15...Nf5 16.Rf2=+) 16.Nf3 (16.Rf3 Qe6=) 16...Ne4 (16...Nf5 17.Re1=+) 17.Qe1 (17.Qd3 Nf5=) 17...Qc7 (17...Nf5 18.Bd3 Nfg3 19.Be4 Ne4 20.Nd2=+) 18.Ne5 Nf5 19.Rf5 (better is 19.Bd3!?=) 19...gf5-/+ 20.Bh5 (20.Nd3 Rfe8-/+) 20...Qe7 21.g4 (21.Nd3!?–+) 21...fg4 22.hg4 Qg5 23.Bc1 f5 24.Nf3 Qf6 25.g5 Ng5 26.Qg3 Ne4 27.Qh2 Ng5 28.Ne5?? Rad8 29.e4? Ne4 30.Bf3 Ng5 31.Bg2 Nf7 32.Nf3 Nh6 33.Bg5 Qg6 34.Bd8 Rd8 35.Qc7 Rf8 36.Re1 Nf7 37.Nh4? Qg3 38.Nf5 Qe1 39.Kh2 Qe8 40.Ne7 Kh8 (41.Nf5 Qe6–+) 0–1. maxii – Farren, Caissa.com, 2004.

7.b5 Na5 8.d3 b6 9.Nbd2 Qd7 10.a4 c5 11.c4 Ng4 12.h3 Bb2 13.Rb1 Bc3 14.hg4 Qg4 15.Qc2 Bd2 16.Qd2 f5 17.Nh2 Qg5 18.Nf3 Qh6 19.Rbd1 f4 20.ef4 Qf4 21.Qf4 Rf4 22.Rde1 Nb3 23.Bd1 Nd4 24.Nd4 Rd4 25.Bc2 Kf8 26.f3 Bf5 27.Rd1 e5 28.g4 Bd7 29.Rde1 Re8 30.Re4 Kg7 31.Rd4 ed4 32.Kf2 Re5 33.f4 Re3 34.g5 h6 35.Re1 Re1 36.Ke1 h5 37.Bd1 Kf7 38.Bf3 Ke6 39.Kf2 Kf5 40.Kg3 Be6 41.Be4 1–0. Phomopsis – Vincent360, lichess.org, 2019.

7.b5 Nb4 8.Bf6 Bf6 9.d4=.

7.b5 Ne5 8.Ne5 Nd5 9.Nd3 Bf5 10.Bg7 1–0. Phomopsis (1695) – ArtemkaGOD (1675), lichess.org, 2020.

7.b5 Nb8

8.a4 a6 9.c4 ab5 10.cb5 Bd7 11.Nc3 c6 12.Qb3 c5 13.d4 cd4 14.Nd4 Qb6 15.Bf3 Bg4? (15...e5 16.Nde2 Be6+=) 16.Rac1?? (better is 16.Bg4 Ng4 17.Ne6 Ne3 18.Nf8 Nf1 19.Nd5+/-) 16...Bf3 17.Nf3 Nbd7 18.Rfd1 Nc5 19.Qa2 Nfe4 20.Ne4 Bb2? 21.Qb2 Ne4 22.Rc4 Nc5 23.Ra1 Ra5 24.Nd2 Rfa8 25.Qc2 e5 26.Nb3 Nb3 27.Qb3 Kg7 28.Rac1 Qd8 29.Rc7 b6?? 30.Qf7 Kh6 31.Qh7 Kg5 32.h4 Kf5 33.Qf7 Qf6 34.Qf6 Kf6+– 35.R7c6 Ra4 36.Rd6 Kf5 37.Rb6 Rh8 38.g3 g5 39.hg5 Kg5 40.Re6 Kf5 41.Rcc6 Ra1 42.Kg2 Rhh1 43.Rf6 Ke4 44.f3 Ke3= 45.Rc2?? Rag1# 0–1. erisonpassos – damianofff (1625), kurnik, 2012.

8.a4 c5 9.c4 b6 10.d4 Bb7 11.d5 Bc8 12.Nc3 Bg4 13.h3 Bf5 14.Bd3 Qd7 15.Qc2 Bh3 (15...Bd3!? 16.Qd3 a6+=) 16.gh3+/- Qh3 17.Nh2 (better is 17.Qe2+/-) 17...Ng4= 18.Ng4 Qg4 19.Kh2 Qh4 20.Kg2 Qg4 21.Kh1 Qh3 22.Kg1 Be5?? 23.f4 Qg3 24.Kh1 Qh3 25.Kg1?? Qg3= 26.Kh1 Qh3 27.Kg1 ½–½. Fournier,Frederic (1950) – Jaque64 (1920), Active (5/0), 2004.

8.c4 b6 9.d4 Bb7 10.a4 e6 11.Nc3 Nbd7 12.Ng5 h6 13.Bf3 hg5? (better is 13...Bf3 14.Nf3 a6+=) 14.Bb7+– Rb8 15.Bc6 e5 16.a5 ba5 17.Ra5 Nb6 18.Ra7 Nc4 19.Ba3 Na3 20.Ra3 ed4 21.Qd4 Nh5 22.Qg4 Bc3 23.Rc3 Qf6 24.Rfc1 Ng7 25.Qd7 Rbc8? 26.Bd5 Rfd8 27.Qg4 Nf5 28.h3 Ne7 29.Bb3 c5 30.bc6 Rc7 31.e4 Rb8 32.Rf3 Qb2 33.Bf7 Kg7 34.Re1 Qe5? 35.Qe6 Qe6 36.Be6 Nc6 37.Rg3 Kf6 38.Bd5 Ne5 39.Kh2 Rh7 40.Rf1 Rb2 41.f4 Nf7?? 42.fg5+– Ke5 43.Bf7 Ke4 44.Bg6 Kd4 45.Bh7 Kc5 46.g6 Rb7 47.g7 Rg7 48.Rg7 d5 49.Rd7 Kc6 50.Rd8 d4 51.Rd1 Kc7 52.R8d4 Kc6 53.Rc4 Kb5 54.Bg8 Ka5 55.Rb1 Ka6 56.Rc2 Ka5 57.Ra2 1–0. elsh1403 (1635) – azzuurr, kurnik, 2011.

8.c4 e5 9.d4 e4 10.Nfd2 Qe7 11.Nc3 Bf5 (11...a6 12.a4+=) 12.g4+/- Bd7 13.a4 (13.g5 Ne8 14.Nce4 f5 15.gf6 Nf6+/-) 13...h6 (13...h5 14.gh5 gh5 15.Bh5+/-) 14.h3 (14.Nde4!? Ne4 15.Ne4+/-) 14...c6 15.Qc2 d5?? (better is 15...Re8=) 16.cd5 cd5 17.Rac1?? Be6 18.f3 ef3 19.Nf3 Nbd7 20.e4 de4+= 21.Ne4 Ne4 22.Qe4= Nf6 23.Qd3 Bg4?? 24.Ba3 Qe6 25.Bf8 Rf8 26.hg4+– Qg4 27.Kh2 Nh5? 28.Ng1 Qh4 29.Qh3 Qd4 30.Bh5 gh5 31.Nf3 Qf4 32.Qg3 Qg3 33.Kg3 Rd8 34.Rg1 Kf8 35.Kh4 Rd3 36.Rcf1 Ra3 37.Kh5 Ra4 38.Nh4 Rb4 39.Ng6 Kg8 40.Ne7 Kf8 41.Nf5 Bb2?? 42.Nd6 Ke7 43.Nf7 Rb5 44.Kh6 a5 45.Rg7 a4?? 46.Ne5 Kd6 47.Nc4 Kc5 48.Nb2 Rb2 49.Rc1 Kb4? 50.Rg4 Ka3?? 51.Rc3 Rb3 52.Rb3?? ab3= 53.Rg7 b5 54.Rb7?? b4 55.Ra7+– Kb2 56.Kg5 Kb1 57.Kf4 b2 58.Ke3?? Kc2–+ 59.Rc7 Kb3 60.Rd7 b1Q 61.Rd3 Ka4 62.Rd4 Qb3 63.Ke4 Qc3 0–1. elsh1403 – solaris8 (1635), kurnik, 2011.

8.d3 a6 9.c4 ab5 10.cb5 Nbd7 11.Nbd2 Nb6 12.h3 Be6 13.a4 Nfd5 14.Bg7 Kg7 15.Nd4 Nc3 16.Qe1 Qd7 17.Bf3 Ra7 18.Ne6 Qe6 19.Ne4 Ne4 20.Be4 Ra4 21.Ra4 Na4 22.Bb7 Qb3 23.Bc6 Nc3 24.Qa1 Kg8 25.Qa5 Ne2 26.Kh1 Qd3 27.Re1 Nc3 28.Qc7 Nb5 29.Bb5 Qb5 30.Qe7 Re8 31.Qd6 Qb2 32.Kg1 Rc8 33.Qd1 Rc2 34.Rf1 Rc5 35.Qd8 Kg7 36.Qd4 Qd4 37.ed4 Rd5 38.Rd1 f5 39.f3 Kf6 40.Kf2 h5 41.Ke3 g5 42.g3 Ke6 43.Ra1 Rd6 44.Ra5 Rd5 45.Rd5 Kd5 46.h4 g4 47.f4 Kc6 48.Kd3 Kd5 49.Kc3 Ke4 50.Kc4 Kf3 51.d5 Kg3 52.d6 Kf4 53.d7 g3 54.d8Q g2 55.Qg5 Kf3 56.Qf5 Ke2 57.Qh5 Kf2 58.Qf5 Ke2 59.Qe4 Kf2 60.Qg2 1–0. Phomopsis (1695) – KulkovetsOleg (1730), lichess.org, 2020.

8.d3 e5 9.c4 Nbd7 10.Nbd2 h6 11.a4 Re8 12.Qc2 Rf8 13.a5 Ne8 14.d4 e4 (better is 14...Qe7!?+/-) 15.Ne4+– f5 16.Ned2 Ndf6 17.Rac1 g5 18.d5 f4 19.ef4 gf4 20.Nd4 Ng4 21.Bg4 Bg4 22.f3 Bh5? (better is 22...Bd7+–) 23.Ne6 Qe7 24.Nf8 Bf8 25.Rfe1 Qf7 26.Nb3 Ng7 27.Nd4 Rc8 28.Ne6 Nf5 29.Nf4 (29.Nf4 Bg7 30.Bg7 Ng7 31.Nh5 Nh5 32.Qf2+–) 1–0. ejdrzej (1630) – angel2610, kurnik, 2012.

8.d4 Nbd7 9.Nbd2 Re8 10.c4 e5 11.de5 Ne5 12.Ne5 de5 13.Nf3 Qd1 14.Rfd1 Nh5 15.h3 f6? (15...e4 16.Nd4+=) 16.e4?? (better is 16.g4+–) 16...Be6 17.g3 Rad8 18.Kg2 Rd6 19.Rd6 cd6 20.Rd1 Bf8 21.Ba3 Rd8 22.c5 d5 23.ed5?? Rd5= 24.Rd5 Bd5 25.Kf1 Ng7 26.Bb4 b6 27.a4 Bc5 28.Bc3 Ne6 29.a5 Nc7 30.ab6 ab6 31.Nd2 Kf7 32.Nc4 Ke6 33.g4? Bc4 34.Bc4-/+ Kd6 35.Ke2 Nd5 36.Bd2 Nf4 37.Bf4= ef4 38.Kf3 g5 39.Ke2 Ke5 40.f3 Kd4 41.Bd3 h6 42.Be4 Kc3 43.Bc6 Be3 44.Kf1 Kd2 45.Kg2 Ke2 46.h4 Bc5 47.hg5 fg5 48.Bd5 Ke3 49.Kf1 Bd4 50.Ke1 Kd3 51.Kd1 Kc3 52.Ke2 Kb4 53.Bc6 Kc5 54.Kd3 Bf2 55.Ke4 Kd6 56.Kf5 Ke7 57.Kg6 Bd4 58.Kh6 Bf6 59.Kg6 Ke6 60.Bd5 (60.Bd5 Ke5 61.Kf7=). mihai740609 – f1pilot, kurnik, 2011.

8.d4 Nbd7 9.Nbd2 Ne8 10.c4 c6 11.a4 Qc7 12.Rc1 e5 13.de5 de5 14.Ne4 f5 15.Ned2 e4 16.Bg7 ef3 17.Bf8 fe2 18.Qe2 Nf8 19.Nf3 Be6 20.Rfe1 Qe7 21.e4 f4 22.Nd4 Bd7 23.h3 Ne6 24.Nf3 Rd8 25.Qc2 Qg7 26.c5 N8c7 27.b6 ab6 28.cb6 Na6 29.Qb3 Kh8 30.Rcd1 Bc8 31.Rd8 Nd8 32.Rd1 Ne6 33.Rd6 Nac5 34.Qc4 h6 35.a5 Kh7 0–1. tadziczek – pluszowy (1635), kurnik, 2012.

6.0-0 Nbd7

7.c4 b6 8.Nc3 Bb7 9.d4 e5 10.c5 (10.d5 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Qe7+=) 10...a6 (10...bc5 11.bc5 ed4 12.c6 Bc6 13.Nd4=+) 11.Ba3 (11.cb6 cb6 12.Rc1 Rc8+=) 11...Qe7 12.Rc1 b5 13.d5 Bc8 14.e4 Nh5 15.g3 f5 16.ef5 gf5 (worse 16...Rf5 17.g4 Rf3 18.Bf3+/-) 17.Ne5 Ng3 (worse 17...Be5 18.Bh5 f4 19.Bf3+/-) 18.Nc6 (18.fg3 A) 18...de5? 19.d6 Qe6 20.Nd5+- (20.dc7?! Nf6+/-); B) 18...Qe5 19.Qd2 Qd4 20.Qd4 Bd4 21.Kg2 Nf6=) 18...Ne2 19.Qe2 Qe2 20.Ne2 Ne5 (20...Re8 21.Nf4 Ne5 22.Nh5=+) 21.Ne7 (21.cd6!? cd6 22.Ne7 Kh8 23.Rc7=) 21...Kf7=+ 22.cd6 cd6?? (better 22...Nc4 23.Ng3 A) 23...Na3? 24.Rc7 (24.Nc8 Rac8 25.Rc7 Kg6-/+) 24...Be5 25.Nc8 (25.Rc8 Rac8 26.Nc8 Rc8-/+) 25...Kg6 26.Re1+-; B) 23...cd6 24.Nef5 Bf5 25.Rc4 bc4 26.Nf5 c3 27.Nd6 Kg8=+) 23.Rc7+- (23.Nc8 Rfc8 24.Nd4 Nc4 25.Nf5 Rg8=+) 23...Bd7 24.f4?? (better 24.Nf5 Kf6 25.Ng7+-) 24...Ke7-+ 25.fe5 Be5 26.Re1 Rfc8 27.Rc8 Rc8 28.Nd4 Kf6 29.Nf3 Bc3 (29...Rc2 30.Bc1-+) 30.Rf1 (30.Re3 Ba1 31.Kf2 f4-+) 30...Rc4 31.Bc1 (31.Rc1 Rg4 32.Kf1 Bb4 33.Bb2 Ke7-+) 31...Bb4 32.Bg5 Kf7 (better 32...Kg6 33.Be3-+) 33.Bh4 (33.Be3 Kg6-+) 33...Bc5 (33...Rc2 34.Be1 Ba3 35.Bh4-+) 34.Kg2 (34.Bf2 Kf6-+) 34...Rg4 (34...Rc2!? 35.Kh1 Bc8 36.a4 ba4 37.Ng5 Kg6 38.Ne6-+) 35.Bg3 (35.Kh1 h6-+) 35...f4 (35...Ra4 36.Ra1-+) 36.Nh4 (36.Nd2 Be3 37.Ne4 Kg6-+) 36...Kf6 (better 36...Bc8 37.Rf4 Rf4 38.Bf4-+) 37.Rf4 Rf4 38.Bf4 Bf5 (38...b4!? 39.Nf3 Bc8 40.Ng5-+) 39.Kf3 (39.Kf3 Bb1 40.a3-+). Lance5500 (2735) – opperwezen, Casual Bullet game, lichess.org, 2016.

7.c4 c5 8.a3 a6 9.Qb3 e5 10.Nc3 Nb6 (better 10...b6!?=) 11.bc5+– dc5 12.Ne5 Be6 13.a4 Rb8 14.Nf3 Nbd7 15.h3 b6 16.d4 cd4 17.ed4 The passed pawn on d4 quickly leads to threats 17...b5? (better 17...Qc7+–) 18.ab5+– ab5 19.Nb5 Ne4 20.Ra7 (20.Qc2 Ng5+–) 20...Ndf6 (20...Nd6 21.Qb4 Nb5 22.cb5+–) 21.Ba3 Re8 22.Qe3 (better 22.Re1+–) 22...Bd7?? (22...Ng3 23.Ne5 Nf1 24.Bf1 Rb5 25.cb5 Bd5+–) 23.Nc7 Ng3 24.Ne8 Nf1 (24...Qe8 25.Qe8 Re8 26.fg3 Re2 27.Ne5+–) 25.Nf6 Bf6 26.Bf1 Rb1 27.d5 Qc8 (27...Bf5 28.Ne5 Bg5 29.f4+–) 28.Qc5 Qe8 (28...Bh3 29.Qc8 Bc8 30.Ra8+–) 29.Qd6 Qe2 (29...Bg7 30.Qd7 Qd7 31.Rd7 h6+–) 30.Qf8 (30.Qd7?? Rf1 31.Kh2 Be5 32.Ne5 Qe5 33.f4 Qf4 34.g3 Qf2) 1–0. Woelfelschneider,Peter – Bodo, 2009.

7.c4 c5 8.b5 Re8 9.d3 h6 10.Nbd2 a6 11.a4 b6 12.Re1 a5 13.h3 Bb7 14.Qc2 d5 15.Rac1 Rc8 16.Qb3 e6 17.Red1 Qe7 18.Re1 Ba8 19.Ba1 Bb7 20.Rf1 Nh7 21.Rfe1 Ba1 22.Ra1 Qf6 ½-½. AlbertOOO44444 (1925) – profedunca, Casual Rapid game, lichess.org, 2020.

7.c4 Ne8 8.Bg7+= Ng7 9.d4 e5 10.d5 (10.Nc3 a5 11.b5 ed4 12.ed4 Nf6+=) 10...f5 (10...a5 11.ba5 Ra5 12.Nc3=+) 11.Qc2 (11.Nc3 Qe7+=) 11...Qf6 (11...a5 12.ba5 Ra5 13.Nc3=) 12.Nc3+= a6 (12...Qe7 13.Qb3+=) 13.Rfd1 (13.h3 Qe7+=) 13...b6 (13...Qe7 14.Qb3+=) 14.Rac1 (14.Qa4 Qe7+=) 14...g5 Black prepares f4 (14...Qe7 15.h3+=) 15.Na4 White intends c5 15...g4 16.Ne1 (16.Nd2 a5 17.c5 ab4 18.cd6 Qd6+–) 16...h5 (16...a5!? 17.c5 ab4 18.cb6 Nb6 19.Nb6 cb6=) 17.c5+– f4 18.ef4 (18.e4 bc5 19.bc5 Qg6+–) 18...ef4 19.cb6 cb6 20.Qc7 (20.Qd2 b5 21.Nc3 Ne5=) 20...Ne5 (20...Ne8 21.Qc6 f3 22.gf3= (22.Qa8? fe2 23.f3 Qg5–+)) 21.Qb6 (better 21.f3!? Rf7 22.Qb6+=) 21...f3= 22.Bf1 fg2 23.Bg2 (23.Ng2?? Nf3 24.Kh1 Qe5 25.Qd6 Qd6 26.Nf4 Qf4 27.Rc8 Qh2) 23...Nf3 24.Nf3 gf3 25.Bf1 Nf5 (25...Bd7 26.Nc3+=) 26.Kh1 (26.Rc7 Re8 27.h3 Nh4+=) 26...Kh8 (26...Bd7 27.Nc3 Rab8 28.Qa7+–) 27.Bh3 (27.Qc7 Nh6 28.Bd3 Bf5 29.Bf5 Qf5 30.Qd6 Rf6=) 27...Ng3 (27...Ne3 28.Qe3 (28.fe3 Bh3 29.Qd4 Qd4 30.ed4 f2–+) 28...Bh3 29.Qd4=) 28.fg3 (better 28.hg3 Bh3 29.Rc4+–) 28...Bh3=+ 29.Qf2 Bg2 30.Kg1 Rg8 (30...Rae8!? 31.Nc3 Rf7=+) 31.Qd4 Qd4 32.Rd4 1–0. Solari,Pablo (1685) – Buono,Gustavo Daniel, 1st Marcel Duchamp Cup, 2017. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.Be2 0-0 6.0-0 Nbd7)

7.d3 a5 8.b5 c6 9.c4 cb5 10.cb5 b6 11.Nbd2 Bb7 12.a3 Rc8 13.Rc1 Nc5 14.a4 Bf3 15.Nf3 Qd7 16.Nd4 Ne6 17.Rc8 Rc8 18.Nc6 Nd8 19.Bf3 d5 20.Qb3 Nc6 21.Bf6 Nb4 22.Bg7 Kg7 23.d4 f6 24.h3 e5 25.de5+/- fe5 26.Bg4+– Qd8 27.Bc8 Qc8 28.Qb2 Kf6? 29.f4 Qc7 30.fe5 Ke6 31.Rf6 Ke7 32.Qd4 Qc5 33.Rb6 Qd4 34.ed4 Nc2 35.Rd6 Nd4 36.Rd5 Nb3 37.b6 Ke6 38.Rb5 Nd4 39.b7 Nb5 40.b8Q Nd4 41.Qd6 Kf5 42.Qd4 (42.Qd4 h6 43.g4 Ke6 44.Qd6 Kf7 45.Qf6 Kg8 46.e6 Kh7 47.Qf7 Kh8 48.e7 g5 49.e8Q#) 1–0. ejdrzej (1625) – kkadonas (1640), kurnik, 2012.

7.d3 a5 8.b5 c6 9.c4 c5 10.Nbd2 b6 11.Qc2 Bb7 12.a3 Ng4 13.Bg7 Kg7 14.h3 Nge5 15.Qc3 f6 16.d4 Nf3 17.Bf3 (worse is 17.gf3 cd4 18.ed4 e5+=) 17...Bf3 18.Nf3 (worse is 18.gf3 cd4 19.Qd4 Nc5+=) 18...e5 19.Rad1 e4 20.Nd2 f5? (better is 20...Qe7+=) 21.dc5+– Kg8 22.cd6 Nc5 23.Nb3 Nd3 24.c5 bc5 25.Qc5?? Rc8 26.Qd5+– Rf7 27.Na5?? Rc5?? 28.Qe6?? Rb5?? 29.Nc6+– Qd7 30.Nd4 Qe6 31.Ne6 Rb6? 32.Ra1 Rd6+= 33.Nd4 Ra6 34.Ra2 Rfa7 35.Rfa1 Nb4 36.Rb2 Nd3 37.Rb3 Kg7 38.Nb5 Rb7 39.a4 Nc5 40.Rba3 Na4?? 41.Nd4 Rba7= 42.Nb5 Rb7 43.Nc3 Nc3 44.Ra6 Kh6 45.Ra7 Rb2 46.Rc7 Nd5 47.Rd7 Nc3 48.Raa7 Ne2 49.Kh2 Kg5 50.Rh7 f4 51.Ra5 Kf6 52.Rh6 fe3 53.fe3 Nc3 54.Ra6 Kf7 55.Rhg6 Rb7 56.Rh6 Kg7 57.Rhb6 Rb6 58.Rb6 Nd5 59.Rd6 Ne3 60.Re6 Nf5 61.Re4 Kf6 62.Rf4 Kg5 63.Rf5! Kf5 ½–½. ejdrzej (1770) – kkadonas (1750), kurnik, 2012.

7.d3 e5 8.Nbd2 c6 9.a4 Qe7 10.b5 h5 11.c4 Ng4 12.h3 Nh6 13.d4 e4 14.Nh2 d5 (14...Nf5!?+=) 15.cd5+/- cd5 (15...cb5 16.ab5 Re8 17.Qc2+/-) 16.Ba3+– Qg5 17.Bf8 Nf8 18.f3?? (better is 18.Kh1+–) 18...Bh3 (better is 18...Qe3 19.Kh1 Nf5–+ (19...Bd4?! 20.fe4 Ba1 21.ed5–+; 19...Qd4?! 20.fe4 de4 21.Ra3-/+)) 19.Rf2= Bd7 20.f4 Qg3 21.Qe1?? Qe3–+ 22.Ndf1 Qd4 23.Rd1 Qc5 24.Kh1? Bd4 25.Rd4 Qd4 26.Nd2 e3 27.Ndf3 ef2 28.Qf1 Qf4 29.Qf2 Rc8 30.Nf1 Rc1 31.g3 Qe4 32.Kh2 Ng4 33.Kg2 Nf2 34.Kf2 Bg4 35.N1d2 Qa4 36.Ne5 Be2 37.Ke2–+ Rc2 38.Nef3 Rd2! 39.Nd2 Qb5 40.Ke3 a5 41.Kf4 a4 42.Kg5 a3 43.Kh6 a2 44.Nf3 a1Q 45.Ng5 Qg7# 0–1. blaugrana18 – ksiazearagorn, kurnik, 2012.

7.d3 e5 8.Nbd2 Ne8 9.c4 f5 10.Qc2 c6 11.a4 a5 12.b5 Ndf6 13.d4 e4 14.Ne1 d5 15.g3 g5 16.Ng2 h5 17.h4 Nh7 (17...f4 18.gf4 (worse is 18.hg5 f3 19.Nf3 ef3 20.Bf3 Nh7=) 18...gh4 19.Nh4+=) 18.Bh5 Nef6 19.Be2 gh4 20.Nh4 Kf7 21.bc6 bc6 22.cd5 cd5 23.Ba3 Rh8 24.Rac1 Ra7 25.Bc5 Ra8 26.Rb1 Ng5 27.Qb2 Be6 28.Qb7 Nd7 29.Rb6?? Bf6?? 30.Nf5?? Bf5 31.Qd5+= Be6 32.Re6 Ne6 33.Ne4 Ndc5 34.Qd8 Rad8 35.dc5 Ng5 36.Nd6 Kg6 37.Bd3 Kg7 38.Kg2 Rhf8 39.Nf5 Kh8? 40.Rh1+/- Kg8 41.Nh6?? Kg7= 42.Nf5 Kf7 43.Nd6 Ke6? 44.Bc4+– Kd7 45.Bb5 Ke6? 46.Bc4 Ke7?? 47.Nf5?? Kd7= 48.Nd6 Kc6 (48...Kc6 49.Bb5 Kc5 50.Nb7 Kb4 51.Rb1 Kc3 52.Nd8 Rd8+=). ejdrzej – euseijoga, kurnik, 2011.

7.d4 a6 8.Nbd2 b6 9.c4 Bb7 10.a4 c5 11.b5 a5 12.d5 Qc7 13.Qc2 e6 14.e4 ed5 15.ed5 Rae8 16.Rfe1 Nh5 17.g3 Bb2 18.Qb2 Nhf6 19.Bd3 Bc8 20.Ng5 Qd8 21.Nge4 Ne5 22.Bf1 Ne4 23.Ne4 Bf5 24.Nd2 h5 25.f4 Ng4 26.Ra3 Re1 0–1. Orang4Utan (1720) – stevesteve (1715), lichess.org, 2018.

7.d4 Re8 8.c4 e5 9.Nc3 ed4 10.ed4 Nf8 11.Re1 ½–½. Stojanovski,D (2425) – Bogdanovski,V (2410), 20th ch–MKD Open, 2011.

7.d4 Re8 8.Nbd2 e5 9.de5 Ne5 10.Ne5 de5 11.Nf3 e4 12.Qd8 Rd8 13.Nd4 Bg4 14.Bg4 Ng4 15.h3 Ne5 16.Rad1 Nc4 17.Ba1 c6 18.a4 Rd6 19.f4 Rad8 20.Rde1 b6 21.f5 c5 22.bc5 bc5 23.Nb5 Rd2 24.f6 Bh6 25.Na7 Ne3 26.Rf2 Nc2 27.Rd2 Rd2 28.Bc3 Ne1 29.Bd2 Bd2 30.Nc6 e3 31.a5 Nd3 32.a6 e2 33.a7 e1Q 34.Kh2 Qe8 35.Ne7 Kh8 36.Nd5 Qa8 0–1. Orang4Utan (1690) – n2048m (1715), lichess.org, 2017.

6.0-0 e5

7.a3 Nbd7 8.d4 e4 9.Nfd2 d5 10.c4 c6 11.Nc3 Re8 12.Rc1 a6 13.Qb3 Nb6 14.Qa2 Be6 15.Rfe1 Rc8 16.Red1 h5 17.Qb3 Bg4 18.Re1 Be6 19.Na4 Na4 20.Qa4 Qd6 21.Nf1 Bg4 22.Ng3 Be2 23.Ne2 Ng4 24.g3 h4 25.h3 Nf6 26.Kg2 Nd7 27.Nf4 Nb6 28.Qd1 Nc4 29.Rc2 hg3 30.fg3 Bh6 31.Qg4 Bf4 32.gf4 f5 33.Qg5 Kf7 34.Kh2 Rh8 35.Bc1 Qf6 36.Qg3 Rh5 37.Rg1 Rch8 38.a4 Nd6 39.b5 ab5 40.ab5 Nb5 41.Rgg2 R8h6 42.Kg1 Qh8 43.Rh2 Rh3 44.Rh3 Rh3 45.Qg2 Qh4 46.Bd2 Rg3 47.Rc1 Rg2 48.Kg2 Qg4 49.Kf2 Qf3 50.Ke1 g5 51.Rc2 gf4 52.ef4 e3 53.Bb4 Qf4 54.Bc5 Qe4 55.Rh2 f4 56.Rh1 f3 57.Kf1 Qb1 0–1. Adamkosh (1965) – lexchess2 (2170), lichess.org, 2019.

7.a3 e4 8.Nd4 Qe7 9.Nb3 c5 10.d4 ed3 11.cd3 Na6 12.bc5 Nc5 13.Nc3 Re8 14.Rc1 Bd7 15.h3 Rac8 16.Nd4 a6 (16...Ne6 17.Ne6 Qe6 18.Bf3=) 17.Bf3 b5 18.Ba1 (18.Qe2 Rc7=) 18...Rc7 (18...Ne6 19.Bb2=) 19.Na2 Rec8 20.Nb4 Qe8 (20...a5 21.Na2=) 21.Ne2 Ra7 (21...Ne6 22.Rc7 Nc7 23.Qd2+=) 22.Rc2 (22.Nf4 a5 23.Bf6 Bf6+=) 22...a5 (22...Ne6 23.Bd4 Rc2 24.Qc2+= (24.Nc2?! Rc7=)) 23.Bf6+= Bf6 (worse is 23...ab4 24.Bg7 Kg7 25.ab4+/-) 24.Nd5 Bd8 (24...Bg7 25.Ng3+=) 25.d4 Ne4 26.Rc8 Bc8 27.Qc2 (27.Be4 Qe4 28.Nec3 Qe8+=) 27...Bf5 28.Bg4 Bg4 29.hg4 Nf6 30.Nec3 Rb7 31.Nf6 Bf6 32.Nd5 Kg7 33.Rb1 (33.f4 b4 34.ab4 ab4=) 33...b4= 34.ab4 ab4 35.Rb4 Rb4 36.Nb4 Bd4 37.Qb3 (37.Qd2 Bc5=) 37...Bf6 38.Qd1 Qe5 39.Nd5 h6 40.g3 Bd8 41.Qd3 Bf6 42.Qd1 Bd8 43.Qd3 Bf6 44.Qd1 Bd8 45.Kg2 Qe4 46.Qf3 Qc2 47.Qf4 Qc5 48.Qe4 Bf6 49.Qd3 Be5 50.Qd2 Kh7 51.Qa2 Kg7 52.f4 Bc3 53.Kh3 Bf6 54.Qd2 Ba1 55.Qd1 Bb2 56.Kg2 Qc4 57.Kf2 Qc5 58.Qd3 Ba1 59.Kg2 Bb2 60.Kh3 Ba1 61.Qd1 Bb2 62.Kg2 Qc4 63.Kf3 Qc5 64.Qd2 Ba1 65.Qd1 Bb2 66.Qd2 Ba1 67.Qd1 Bb2 68.Qd2 Ba1 ½–½. samurai – Prince W, ChessWorld.net, 2015.

7.a4 h6 8.b5 Be6 9.c4 Nbd7 10.d4 ed4 11.Nd4 Qe7 12.Nc3 Nc5 13.a5 Bd7 14.Nb3 Nb3 15.Qb3 c6 16.Bf3 Rab8 17.a6 ba6 18.Ra6 cb5 19.cb5 (19.Nb5?! Bc8 20.Rfa1 Ba6 21.Ra6 Rb6 22.Rb6 ab6=+) 19...Be6 (19...Bc8!? 20.Ra5 a6+/-) 20.Qa3 Bc4 21.Ra7 Qe6 22.Rd1 Rfd8 23.Qa1 Bb5 (23...Rd7+-) 24.Nd5 (24.Nb5?! Rb5 25.h3 Bh8+/-) 24...Ne8 25.Bg7 Ng7 26.Re7 Qf5 27.Be4 Qg5 28.Nf6 Kf8 (28...Kh8 29.Rf7 Qe5+-) 29.Nh7 (29.Nh7 Ke7 30.Ng5 hg5 31.Qg7+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

7.b5 Nbd7 8.c4 a6 9.a4 Nc5 10.d4 Nce4 (better is 10...ed4!? 11.ed4 Nce4=) 11.de5+/- de5 12.Be5 Qd1 13.Rd1 (13.Bd1 Re8+/-) 13...Ng4 (13...Nf2 14.Rd4 N2g4 15.Bc7 ab5 16.cb5 Nd5-/+) 14.Bg7+/- Kg7 15.Rd3 (15.Rf1!?+/-) 15...Nef2 (better is 15...Ngf2 16.Rd4 ab5 17.cb5 f5=) 16.Ne1?? (better is 16.Rd4=) 16...Nd3–+ 17.Bg4 (17.Bd3 Ne3 18.Nc2 Nc2 19.Bc2–+) 17...Ne1 18.Bc8 Rac8 19.Na3 (19.e4 Nd3–+) 19...Nd3 20.Rb1 (20.Kf1 Rcd8–+) 20...ab5 (20...Rfe8 21.Nc2–+) 21.Rb5 (21.Nb5 Ra8 22.Nc3 Nc5–+) 21...b6 22.Rd5 Nb2 (23.Kf2 Ra8–+) 0–1. Zimmer,Georg – Loots, corr, 1989.

7.Nc3 a5 8.b5=.

7.Nc3 c6 8.d4 e4 9.Nd2 d5 10.f3 Qe7 11.a3 ef3 12.Rf3 Bg4 13.Rg3 Be2 14.Qe2 Nbd7 15.Nd1 Nb6 16.a4 Rfe8 17.c3 Ne4 18.Ne4 Qe4 (worse is 18...de4 19.a5 Nd5 20.b5=) 19.Nf2 Qe6 20.a5 Nc4 21.Re1 Re7 22.Bc1 Rae8 23.Nd1 f5 24.Qf3 Bh6 25.Kf2 Nd6 26.Ke2 b6 (26...Ne4 27.Rh3 c5 28.Rf1–+) 27.a6? (better is 27.ab6 Ne4 28.ba7 Ng3 29.Qg3 Ra7 30.Kf1–+) 27...Qc8 28.h4 Qa6 (28...Qa6 29.Kf2 Qd3–+) 0–1. Tarasov,Ilia – Pavlovsky,V, Borisoglebsk RUS, City Ch, 2012.

7.Nc3 Nc6 8.b5 Ne7 9.e4 Nd7 10.Bc4 Nb6 11.Bb3 c5 12.bc6 Nc6 13.a4 Na5 14.Ba2 Nac4 15.Rb1 Nb2 16.Rb2 Rb8 17.Qe2 Be6 18.Be6 fe6 19.Rfb1 Qc8 20.d3 Qc3 0–1. Plock – Klatt, active 1999.

7.Nc3 Qe7 8.d4 (8.a3 Bf5=) 8...e4 9.Nd2 d5 10.b5 Re8 11.a4 a6 12.Ba3 Qe6 13.Qb1 Nbd7 14.a5 h6 15.h3 Kh7 16.Qb3 (16.Qb4 b6=) 16...Rd8 (16...c6 17.b6+=) 17.Rfb1+= Kh8 18.ba6 ba6 19.Na4 Rb8 (19...c6 20.Qc3+/-) 20.Qc3+/- Ne8 21.Rb8 Nb8 22.Qb3 Nc6 23.Nc5+/- Qf6 24.Qa4 Ne7 25.Na6! Nf5 26.Nb8 Bb7 27.a6 Rb8 28.ab7 Qd8 29.Rb1 Ned6 30.Ba6 Ne7 31.Bc5 Ne8 32.Ba7 (32.Ba7 Nd6 33.Bb8 Qb8 34.Nb3+–) 1–0. lasker (2165) – LyleCherner (1995), internet, 2007.

7.Nc3 Bf5 8.Nh4 Bd7 9.a3 e4 10.g3 (10.f4 Nd5 11.Qe1 Nc6=) 10...Bh3=+ 11.Ng2 Nc6 12.d3 (12.f3 d5=) 12...ed3 (12...Nd5 13.Na4 Bb2 14.Nb2=+) 13.Qd3 Bf5 14.Qb5 Ne4 (14...Qb8 15.Bd3 a6 16.Qc4–+) 15.Na4 (15.Nd1 Bb2 16.Nb2 Nc3=+) 15...Bb2 16.Nb2 Nc3 17.Qc4 Ne2 18.Qe2 Qg5 (18...Qf6 19.c4=+) 19.Qb5 Rab8 20.e4 Qf6 21.ef5 Qb2 22.fg6 hg6 (22...fg6 23.Qd5 Kh8 24.Ne3=+) 23.Ne3 Nd4 24.Qd7 (24.Qc4 Qc3 25.Qc3 Ne2 26.Kg2 Nc3=) 24...Qc3 (24...Nc2 25.Nc2 Qc2 26.Rfc1=) 25.Ra2 (25.Nd5 Qc2 26.Rad1 Qc4-/+) 25...Rbe8 26.Qg4 Re6 27.Rd1 c5 28.Kg2 Re3 29.fe3 Nf5 30.Rd3 Qd3!-/+ 31.cd3 Ne3 32.Kf3 Ng4 33.Kg4 Re8 34.Rb2 Re7 35.Rc2 Re3 36.bc5 dc5 37.Rc5 Rd3 38.Rc7 Ra3 39.Rb7 a5 40.Kg5 Ra2 41.h4 Kg7 42.Ra7 Ra4 43.h5 gh5 44.Kh5 Ra1 45.g4 a4–+ 46.Kg5 a3 47.Ra6 a2 48.Ra7-/+ Kf8 49.Ra5 Ke7 50.Ra7 Kd6 51.Ra6 Kd5 52.Ra5 Kc4 53.Ra7–+ Kb4?? 54.Rb7 Kc5 55.Rc7 Kd6 56.Rc2 Kd5 57.Rf2 Ke5 58.Rf5 Ke4 59.Rf4 Ke3 60.Ra4 Kd3 61.Ra3 Ke4 62.Ra4? Ke3 63.Ra5? Kf3?? 64.Ra7 f6–+ 65.Kf5 Kg3 66.Kg6? Kg4 67.Ra4 Kh3 68.Ra3 Kh2 69.Kf7 f5 70.Kf6 f4 71.Ra5?? f3 72.Rd5 f2 73.Rd2 Kg1 74.Kg5 f1Q 75.Kg4 Qg2! 76.Rg2 Kg2 77.Kf4 Rc1 78.Ke5 a1Q 79.Kd5 Qf6 80.Ke4 Rd1 81.Ke3 Qe5 0–1. ROBOrvl – crafty, ICC, 1996.

7.c4 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.0-0).

7.d3 Na6 8.a3 c6 9.Nbd2 Nc7 10.c4 Re8 11.Rb1 e4 12.de4 Ne4 13.Nd4 c5 14.N4f3 Nc3 15.Bc3 Bc3 16.Qc2 Bg7 17.Rfd1 a6 (17...Qe7 18.Bd3=) 18.Rbc1 (18.bc5 Bf5 19.e4 dc5 20.Rb7 Bc8+/-) 18...b5 (18...Qe7 19.bc5 dc5 20.Rb1+=) 19.Ne4 (better is 19.bc5!? dc5 20.cb5 Nb5 21.Nb3+=) 19...Bf5+= 20.Bd3 (better is 20.Nfd2 cb4 21.ab4+=) 20...Bf8?? (20...bc4 21.Qc4 d5 22.Qc5 Ne6–+ (22...de4 23.Be4 Qb8 24.Bf5+–)) 21.Ng3 (21.Nc5 Bd3 22.Nd3 Ne6+–) 21...Bg4 22.Be2 (22.bc5 bc4 (22...dc5? 23.Bg6 Qd1 24.Rd1 hg6 25.h3 Bf3 26.gf3+–) 23.Bc4 d5+–) 22...d5 23.cd5 c4 24.Rd4 Bc8 25.Rcd1 Bg7? (25...Bd6 26.Re4+=) 26.R4d2 Bb7+/- 27.e4 h5 28.d6 Ne6 29.d7 Re7 30.Nh4 Nf8 31.Bf3 Nd7 32.Ne2 Qe8 33.Ng3 Bf6 34.Nhf5 gf5 35.Nf5 Ne5 36.Ne7 Be7 37.Bh5 Nd3 38.Bf3 Rd8 39.Qc3 Bg5–+ 40.Re2 Qe7 41.g3 Bh6 42.Bg2 Bg7 43.Qd2 Rd4 44.Qe3? Qd8?? 45.e5? Bg2–+ 46.e6?? fe6 47.Qe6 Kh7?? 48.Qf5= Kg8 49.Qe6 Kh8 50.Qf7?? Bc6–+ 51.Qg6 Bd7 52.Re3 Qf8 53.Qh5 Kg8 54.Rf3 Qe8 55.Qg5 Bc6 56.Re3 Qf8 57.Rd2 Nf2 (57...Nf2 58.Kf1 Nh3 59.Qf4 Rf4 60.gf4 Qf4 61.Ke1 Qe3 62.Kd1 Qg1 63.Kc2 Be4 64.Rd3 Qe1 65.a4 Bd3) 0–1. Buiten,Herman – Cremers,Bertrand, FRA–chT4, 2009.

7.d3 Nfd7 8.Qc1 f5 9.Nbd2 g5 10.c4 g4 11.Ne1 Qe7 12.e4 Nf6 13.ef5 Bf5 14.Nc2 Nc6 15.Ne3 Bd7 16.b5 Nd8 (16...Nd4!? 17.Bd1 Qf7+=) 17.Qd1 h5 18.f3 Bh6 19.Nc2 Nf7 20.Ne4 Ne4 21.de4 Qh4 22.Bc1 Bc1 23.Rc1 g3 24.hg3 Qg3 25.Qe1 Qf4 26.g3 (better is 26.Nb4!?+=) 26...Qh6+= 27.c5 Kh8 28.cd6 cd6 29.Bc4 Ng5 30.Qe3?? (better is 30.Be2-/+) 30...Rac8–+ 31.Qe2 (31.Be2 Rc2! 32.Kh1–+) 31...Nf3! 32.Kg2 Rc4! 33.Rf3 Rf3 34.Qf3 Qd2 35.Qf2 Bh3! (35...Bh3 36.Kg1 Qc1 37.Ne1 Kg7–+; 35...Qc1?! 36.Qf8 Kh7 37.Qf7 Kh6 38.Qf6 Kh7 39.Qf7 Kh6 40.Qf6 Kh7 41.Qf7=) 0–1. Melderis,Uldis (2105) – Demidowicz,Maria (2035), Gorzow Wielkopolski op Poland, 2008.

7.d3 Re8 8.Nbd2 b6 9.c4 Bb7 10.a4 c5 11.b5 Nbd7 12.Nb3 d5 13.a5 dc4 14.dc4 Qc7 15.a6 Bf3 16.Bf3 Rad8 17.Qc2 e4 18.Be2 Ne5 19.Rad1 Neg4 20.g3 Ne5 21.Rd2 Nf3 22.Bf3 ef3 23.Rd8 Rd8 24.Nd2 Qd7 25.Nf3 Qh3 26.Ng5 Qh5 27.h4 h6 28.Ne4 (better is 28.Bf6 Bf6 29.Ne4+=) 28...Ne4-/+ 29.Bg7 Nd2 30.Bf6 Rd7 (better is 30...Qe2 31.Rd1 Nf3 32.Kg2 Ne1 (32...Qc2?? 33.Rd8 Kh7 34.Rh8; 32...Qd1?! 33.Qd1 Nh4 34.gh4 Rd1 35.Be5-/+) 33.Re1 Qc2 34.Bd8 Qc4 35.Bb6 Qb5–+) 31.Rc1= Nf3 32.Kg2 Rd2?? (better is 32...Nd2 33.Bc3 Qf3 34.Kg1 Nc4+=) 33.Qe4+– Nh2 (33...Nh4 34.gh4 Kh7+–) 34.Qe8 Kh7 35.Qh8 (35.Qf7) 1–0. Starr,Albert Martin – Lupton,Stephen, San Francisco Pafnutieff Memorial g/45, 2005.

7.d4 a6 8.de5 de5 9.Ne5 Be6 10.c4 Nfd7 11.Nd7 Bb2 12.Nf8 Qf8 13.Nd2 Ba1 14.Qa1 Qb4 15.Qd4?? (better is 15.Rb1 Qa5 16.Ne4+/-) 15...Nc6–+ 16.Qh4? (better is 16.Rb1 Nd4 17.Rb4 Ne2 18.Kf1–+) 16...Qd2 17.Bf3 Rd8 18.c5 Ne5 19.Bb7 a5 20.Qa4? Bc4 21.Rb1 Bd3 22.Rd1 Qc3 23.h3 Rf8 24.c6 Bc2 25.Rc1 Ba4 26.Rc3 Rd8 27.Ra3? Bc6–+ 28.Ra5 Bb7 29.Re5 Rd1 30.Kh2 Rd2 31.Rb5 Bc6 32.Rc5 Rd6 33.a4 Kf8 34.a5 Ke7 35.a6 Kd7 36.a7 Bb7 37.Ra5 Ba8 38.Kg3 f5 39.Kf4 Rb6 40.Kg5 Kd6 41.Kh6+= c5 42.Kh7 c4 43.Kg6 c3 44.Ra1 Rb5 45.Rc1 Rc5 46.g4 fg4 47.hg4 c2 48.Kf6 Be4 49.g5 Rc7 50.g6 Ra7 51.g7 Ra8 52.Kf7 Bh7 53.f4 Ra7 54.Kf6= Rc7 55.f5? Bg8?? 56.e4= Rc4 57.e5 Kd7 58.e6 Ke8 59.Kg5 Ke7–+ 60.Kg6 Rf4?? 61.Kg5?? Rf2-/+ 62.Kg4 Kf6 63.Kg3 Re2 64.Kf3 Rd2 65.Ke3 Rh2 66.Kd3= Kf5 67.e7 (67.e7 Rh3 68.Kd4 Rh4 69.Kc3=). elsh1403 (1635) – djwas, kurnik, 2012.

7.d4 Nc6 8.b5 Ne7 9.de5 de5 10.Be5 Ned5 11.c4 Nb4 12.Qb3 Qe7 13.a3 1–0. Orang4Utan (1725) – Toftof71 (1735), lichess.org, 2017.

7.d4 Nbd7 8.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0-0).

7.d4 Nbd7 8.de5 Ng4 9.Nbd2 Nge5 10.Ne5 Ne5 11.Rb1 Be6 12.c4 Qd7 13.h3 a6 14.f4 Nc6 15.Bg7 Kg7 16.a4 Ne7 17.b5 ab5 18.ab5 Nf5 19.Ne4 f6 20.Qd3 Rfe8 21.g4 Nh6 22.Qd4 Ng8 (22...Qe7 23.Bf3=) 23.Rf3 (23.b6 Ra2 24.Bf3 Rc2+/-) 23...Kf7 (23...Qe7 24.Bd3=) 24.Kg2 (24.b6 f5 25.gf5 Bf5 26.Ng5 Kf8+/-) 24...Qe7 25.Bd3 f5 26.Ng5 Kf8 27.gf5 Bf5 28.Bf5 gf5 29.Rg3 Ra2 30.Kg1 Qd7?? (30...Nf6 31.Nh7! Qh7 32.Qf6 Qf7 33.Qh6 Ke7+/-) 31.Nf3 (31.Qh8 Ke7 32.Qh7 Kd8 33.Nf7 Kc8 34.Rg8 Qe6+–) 31...Re4?? (better is 31...Re7+/-) 32.Qh8+– Qf7 33.Ng5 Qc4 (33...Re3 34.Re3 Qg6+–) 34.Nh7 Ke7 35.Rg7 Kd8 36.Rg8 Ke7 37.Qf6 Kd7 38.Rd8 1–0. Osmak,Yulia – Onokienko,Alexandra, Kiev–ch (Women) UKR, 2009. (=1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.Nf3 0-0 5.Be2 d6 6.0-0 e5)

7.d4 Re8 8.de5 Ng4 9.ed6?? (better 9.Nbd2=) 9...Bb2-+ 10.dc7 Qc7 11.Nbd2 Bg7 (better 11...Ba1!? 12.Qa1 Qc2 13.Rc1-+) 12.Rc1 Nc6 (12...Bc3 13.Rb1-+) 13.c4 (13.c3 Be6-+) 13...Nce5 (better 13...Nb4!? 14.Qb3 Nc6 15.Rfd1-+) 14.a3 Bf5 15.Ne5 Ne5 16.Nf3 (16.e4 Bd7-+) 16...Rad8 (16...Nf3!? 17.Bf3 Bb2 18.Qa4 Bc1 19.Rc1-+) 17.Qc2?? (better 17.Qa4-+) 17…Bc2 (17...Bc2 18.Rc2 Nf3 19.Bf3 Rd3-+) 0-1. andrewrun (2150) - whysoserious (2785), Rated Bullet game, lichess.org, 2014.

7.h3 e4 8.Nh2 d5 9.b5 b6 10.c4 c6 11.a4 Be6 12.cd5 Nd5 13.Bg7 Kg7 14.bc6 Nc6 15.Qc2 Bd7 16.Qe4 Qf6 17.Na3 Qe6 18.Qe6 Be6 19.Nb5 a6 20.Nd6 Ncb4 21.d4 a5 22.Bf3 Rad8 23.Nc4 Ne3 24.Ne3 Rd4 25.Nhg4 Bg4 26.Bg4 h5 27.Bf3 Rfd8 28.Rfd1 Rd1 29.Rd1 Rd1 30.Nd1 Kf6 31.Nb2 Ke6 32.Nc4 Nd5 33.Bd5 Kd5 34.Nb6 Kc5 35.Nd7 Kb4 36.Ne5 f6 37.Ng6 Ka4 38.Nf4 Kb4 39.Nh5 a4 40.Nf4 a3 41.Nd3 Kc3 42.Nc1 Kb2 43.Nd3 Kc2 44.Nb4 Kb3 45.Nd3 a2 46.Nc1 Kb2 47.Na2 Ka2 48.h4 Kb3 49.h5 Kc4 50.h6 Kd5 51.h7 Ke6 52.h8Q Kf5 53.f3 Kg6 54.g4 Kg5 55.Kf2 Kg6 56.Qh5 Kg7 57.Kg3 Kg8 58.Qg6 Kf8 59.Qf6 Ke8 60.g5 Kd7 61.g6 Kc7 62.g7 Kb7 63.g8Q Kc7 64.Qgg7 Kb8 65.Qff8 1–0. Abdullaevich – Temson, lichess.org, 2018.

7.h3 Re8 8.c4 Nbd7 9.a4 a6 10.Nc3 c5 11.b5 ab5 12.cb5 d5 13.d4 cd4 14.ed4 e4 15.Nh2 Qc7 16.Ng4 Nb6 17.Ne3 Bh6 18.Ng4 Ng4 19.Bg4 Nc4 20.Nd5 Qd6 21.Bc8 Rac8 22.Qb3 Nb2 23.Qb2 Qd5 24.Rad1 Rc4 25.a5 Rd8 26.a6 ba6 27.ba6 Bg7 28.a7 Rd4 29.Ra1 Ra4 30.Qg7 Kg7 31.Ra4 Ra8 32.Rb1 f5 33.Rb8 Qd1 34.Kh2 Qa4 35.Ra8 Kf6 36.Rf8 Kg5 37.a8Q Qa8 38.Ra8 Kf4 39.Rh8 h5 40.Rh6 g5 41.Rh5 g4 42.hg4 fg4 43.Rh4 Kg5 44.Kg3 e3 45.Rg4 Kf5 46.fe3 Ke5 47.Kf3 Kf5 48.e4 Ke5 49.Rg5 Kd4 ½–½. Abdullaevich – Xh4bb1, lichess.org, 2018.

7.d3 a5

8.a3 Na6 9.c3 Bd7 10.Nbd2 Qe7 11.Qc2 (worse 11.ba5 Nc5-/+) 11...d5 Black plans e4 12.Rfe1 e4 13.Nd4 (13.de4 de4 14.Ng5 Bf5=) 13...Rfe8 (13...c5 14.bc5 Nc5 15.a4=+) 14.N2b3 (14.de4!? Ne4 15.Ne4 de4 16.Red1=+) 14...a4=+ 15.Nd2 c5 16.bc5 Nc5 17.de4 de4 18.c4 Rac8 19.Bc3 Ng4 20.h3 Ne5 21.Bb4 (21.Red1 Qg5 22.Ne4 Ne4 23.Qe4 Nc4=+) 21...f5 (21...Ned3 22.Bd3 ed3 23.Qb2-/+) 22.f4 (22.Rab1 Ned3 23.Bd3 ed3-/+) 22...ef3 23.N4f3?? (23.Bf3!? Nf3 24.N2f3–+) 23...Nc6 (23...Nf3 24.Bf3 Ba1 25.Ra1 Qe3 26.Kh1–+) 24.Bf1?? (24.Rad1–+) 24...Nb4 25.ab4 Nb3 (better 25...Ba1 26.Ra1 Qe3 27.Kh1 Ne4–+) 26.Rab1 Qb4 (26...Nd2!? 27.Nd2 a3–+) 27.Nb3-/+ ab3 28.Qb3 Qb3 29.Rb3 Bc6 30.Kf2 Rcd8 31.Rd3 Be4 (31...Ra8 32.Nd4-/+) 32.Rd8=+ Rd8 33.Be2 h6 34.Rd1 Rd1 35.Bd1 Bc3 36.Nd4 Kf7 37.Bf3 Bf3 (37...Kf6 38.g4=+) 38.Kf3= Kf6 39.Ne2 Bd2 40.e4 Ke5 41.ef5 gf5 42.g4 fg4 43.hg4 Bg5 44.Ng3 Kd4 45.Ne4 (45.Nf5 Kc4 46.Nd6 Kd4 47.Nb7 Be3=) 45...Be7=+ 46.Nd2? (better 46.c5=+) 46...Kd3–+ 47.Nf1 (47.Nb3 b6 48.Nc1 Kc4–+) 47...Kc4 48.Ne3 (better 48.Ke4 Bg5 49.Nh2–+) 48...Kc5?? (better 48...Kd3–+) 49.Nf5 Bg5 50.Ke4 b5 (50...Bd2!?-/+) 51.Kd3 Kb4 (51...b4 52.Nd4=) 52.Nd4 Bf6 53.Nb5 Kb5 54.Ke4 Kc4 55.Ke3 Bg5 56.Ke2 Kd4 57.Kf3 Kd3 58.Kf2 Kd2 59.Kf1 ½–½. Solari,Pablo (1655) – Michailov,Matias (2135), Paysandu Uruguay, Interclubes Champions, 2012. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 e5 7.d3 a5)

8.a3 ab4 9.ab4 Ra1 10.Ba1=.

8.a3 Nc6 9.b5 Ne7 10.c4 h6 (10...Re8 11.Nc3=) 11.Qc2 Be6 (11...Bg4 12.Nbd2=) 12.Nc3 Nd7 13.d4 f5 (13...Nb6 14.Na4 Bf5 15.Qd1 Na4 16.Qa4 ed4 17.Nd4+=) 14.de5 de5 (14...Ne5 15.Ne5 de5 16.Rad1+=) 15.Rfd1 Qe8 (15...g5 16.e4+=) 16.Nd5 Rc8 17.a4 (17.Qc3 Bd5 18.cd5 Rf7+=) 17...c6 (17...Bd5 18.cd5 e4 19.Bc4 Bb2 20.d6 Kh7 A) < 21.Qb2 cd6 (21...ef3?! 22.de7 Qe7 23.Bd5=) 22.Nd2 d5-/+; B) 21.de7 Ba1 22.ef8R Nf8 23.Ng5 hg5 24.Ra1=) 18.Ne7 Qe7 19.Ba3 (19.Rd2 Rfd8=) 19...Nc5 (19...c5 20.Bb2=) 20.b6 (better is 20.Nd2 e4 21.Rac1+=) 20...Rfe8? (better is 20...Rcd8!?=) 21.Nd2+/- Bf8 (21...Rcd8 22.Nb3 Nb3 23.Be7 Na1 24.Ra1 Re7 25.Rd1+/-) 22.Nb3+– Nb3 23.Be7 Na1 24.Ra1 Be7 25.Qc3 Kf7 26.Qa5 Ra8 27.Qc3 e4 28.Ra2 Bf6 29.Qb4 Be7 30.Qc3?? Bf6 31.Qb4?? Rec8?? 32.h3 c5 33.Qb3 Bd7 34.f3 Bc6 35.fe4 fe4 36.a5 Ra6 37.Qa3 Bd7 38.Bg4 Bg4 39.hg4 Rca8?? 40.Qc5 (40...Kg7 41.Qc7 Kg8 42.Qb7 Ra5 43.Ra5 Ra5 44.Qb8 Kf7 45.Qa7 Ra7 46.ba7+–) 1–0. Popov,Sinisa S (2310) – Nurkic,Sahbaz (2395), Marostica op, 1993.

8.b5 a4 9.c4 Nbd7 10.a3 Nc5 11.Nbd2 Re8 12.e4 (12.Rb1 Qe7=) 12...Nh5 13.g3 (13.Qc2 Nf4 14.Rfe1 g5=) 13...Bh3 14.Re1 h6 15.Bc3 Qd7 16.Bb4 (16.Nf1 f5=) 16...b6 (16...Nf4 17.Qc2=+) 17.Nh4 Nf6 18.Ng2 Ne6 19.Bc3 Nh7 20.Nh4 (20.Bg4 Bg4 21.Qg4 Rad8=) 20...h5 (20...Nc5 21.Ng2=) 21.Nf1 Bf6 (21...Nd4 22.Bd4 ed4 23.Rb1=) 22.Ng2 Bg5 23.Nfe3 Rf8 24.Nd5 Rae8 (24...f5 25.f4 ef4 26.gf4 Bg2 A) 27.Kg2?! A1) worse 27...Bf4 28.Bf3 Rae8 29.ef5 (worse 29.Qa4 Neg5 30.ef5 Qf5 31.Nf4 Nf3 32.Re8 Re8-/+) 29...Rf5 30.Be4 Rg5 31.Kh1+=; A2) 27...Nf4 28.Nf4 Bf4=+; B) 27.fg5+/-) 25.f4 Bg2 26.fg5 Bh3 27.Bh5 (better 27.Qa4!? Ra8 28.Qd1+=) 27...gh5=+ 28.Qh5 Neg5 (better 28...Nc5 29.Re3 Nb3=) 29.Qg5?? (better 29.Nf6! Nf6 30.Qg5 Kh7 31.Qf6+/-) 29...Ng5-+ 30.Nf6 Kg7 31.Nd7 Bd7 (31...Nf3 32.Kf2 Ne1 33.Nf8 Nd3 34.Ke3-+) 32.Kf2 (32.Rf1 Bh3 33.Rf2 f5-+) 32…f5 (32...f5 33.Ke3 fe4 34.de4 Rf3 35.Kd2 Rf2 36.Kd3 Ref8-+) 0-1. Spata,G (2290) - Siva,Mahadevan (2345), Titled Tuesday, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3)

8.b5 b6 9.c4 Nbd7 10.a4 Nc5 11.Nc3 Nfd7 12.d4 Ne6 13.Qb3 (13.de5 Ne5 14.Ne5 Be5+=) 13...Kh8 (13...ed4 14.ed4 Nd4 15.Nd4 Bd4 16.Nd5 Bb2 17.Qb2+=) 14.Rac1 f5 15.Rfd1 ed4 16.ed4 Bb7 17.h3 Bf3 18.Bf3 Nd4 19.Rd4 Bd4 20.Ba8 Qa8 21.Nd5 Bb2 22.Qb2 Kg8 23.Re1 Ne5 24.Qb3 Qd8 25.f4 Nf7 26.Ne7 Kg7+– 27.Qc3 Kh6 28.Qf6 Nh8 29.Nf5 Kh5 30.Ng3 Kh6+= 31.Qd4 Qh4 32.Kh2 Qf4 33.Qf4 Rf4 34.Rc1 Nf7 35.Ne2 Re4 36.Ng3 Rd4 37.Ne2 Rd2 38.Nf4 Ne5 39.Nd5 Rd4 40.Nc7 Rc4 41.Rc4 Nc4 42.Nd5 Kg5 43.Kg3 Kf5 44.Kf3 Ke5 45.Ne7 Nb2 0–1. elsh1403 – graczmarny (1775), kurnik, 2011.

8.b5 Nbd7 9.a4 Qe7 10.c4 e4 11.de4 Ne4 12.Bg7 Kg7 13.Qc2 Ndc5 14.Nbd2 Bf5 15.Ne4 Be4 16.Qc3 Qf6 17.Qf6 Kf6 18.Nd2 Rae8 19.Rfc1 b6 20.Ra3 Re5 21.Rcc3 Kg7 22.Nb3 Nb3 23.Rcb3 f5 24.Ra2 Kf6 25.Rd2 Rfe8 26.g3 g5 27.f3 Bb7 28.Kf2 h5 29.h3 h4 30.gh4 gh4 31.Rd4 Rh8 32.Rb1 Re7 ½–½. Fournier,Frederic (1750) – Marciano,David (2525), Simultanee Pau FRA, 2000.

8.b5 Nbd7 9.Nbd2 Re8 10.c4 Nc5 11.a4 b6 12.Qc2 Bb7 13.Nb3 Nb3 14.Qb3 Nd7 15.d4 e4 16.Nd2 h5 17.h3 h4 18.Qc2 Qg5 19.Kh1 Nf6 20.d5 Re7 21.Bf6 Qf6 22.Rac1 Rae8 23.Kg1 Bc8 24.Nb3 Bf5 25.Nd4 Qg5 26.Nf5 Qf5 27.Bg4 Qe5 28.Be2 f5 29.Rcd1 Kf7 30.Kh1 Bf6 31.Kg1 Rg8 32.Kh1 g5 33.Bh5 Kg7 34.Be2 Kh6 35.Qd2 g4 36.hg4 fg4 37.Kg1 Rh7 38.Rc1 Bg5?? 39.Rcd1?? g3+= 40.f3 ef3 41.Rf3 h3 42.Qd4 Qd4 43.Rd4 h2 44.Kh1 Re8 45.Rg3 Be3?? 46.Rh4# 1–0. ejdrzej (1635) – cystone (1640), kurnik, 2012.

8.b5 Nbd7 9.Nbd2 Re8 10.c4 Nc5 11.a4 e4 12.Nd4 (12.de4 Nfe4 13.Bg7 Kg7 14.Ne4 Ne4=) 12...Nd3 13.Bd3 ed3 14.N2f3 Ne4 15.Qd3 Nc5 16.Qc2 Bg4 17.h3 Bf3 18.Nf3 Qe7 19.Bg7 Kg7 20.Rfd1 Qf6 21.Nd4 Ne6 22.Ne6 Re6 23.Rac1 b6 24.Rd4 Qe7 25.Rcd1 f5 26.Rd5 Re8 27.g3 Qf6 28.R5d4 Re4 29.Kg2 Rd4 30.Rd4 Re5 31.Qc3 Rc5 32.Qd3 Qe5 33.f4 Qe6 34.e4 fe4 35.Qe4 Qe4 36.Re4 Kf6 37.Kf3 d5 38.cd5 Rd5 39.Rc4 Rd3 40.Kg4 Rd7 41.Rc6 Kf7 42.Kg5 Kg7 43.g4 h6 44.Kh4 Kf7 45.f5 gf5 46.gf5 Kg7 47.Kh5 Rd5 48.Rc7 Kf6 49.Rc6 Kf5 50.Kh6 Rd4 51.Rb6 Ra4 52.Rc6 Rh4 53.Kg7 Rh3 54.b6 Rb3 55.Kf7 a4 56.Ke7 a3 57.Kd7 a2 58.Rc5 Ke4 59.Ra5 Rb6 60.Ra2 Rb4 61.Ra5 Rd4 62.Ke6 Kd3 1–0. ejdrzej (1650) – cystone (1660), kurnik, 2012.

8.b5 Re8 9.a4 Nbd7+= 10.Nbd2 (10.h3 Nc5+=) 10...d5 (10...Nc5 11.h3+=) 11.d4 (11.c4 e4 12.de4 de4=) 11...ed4 (11...e4 12.Ne1+=) 12.Bd4 (12.Nd4 Nc5=) 12...Qe7 (12...b6 13.Qc1=) 13.c4 Nc5 (13...dc4 14.Qc2=) 14.Rc1 b6 (14...Rd8 15.cd5 Rd5 16.Nb3=) 15.cd5 (15.Nb3!?=) 15...Nd5+= 16.Bc4 (16.Nc4 Bb7+=) 16...Bb7 (16...Nb4 17.Bg7 Kg7 18.Nd4+=) 17.Bd5= Bd5 18.Bc5 bc5 19.Qc2 Bf8 20.Rfd1 c6 21.b6 Reb8 22.e4 Be6 23.Nb3 Rb6+= 24.Nc5 Qc5 25.Qc5 Bc5 26.Rc5 Bb3 27.Rb1 Rb4-/+ 28.Ne5 Ba4 29.Ra1 Re4 30.Nc6 Bc6 31.Rc6 a4 32.Kf1 Kg7 33.Ra3 Rb8 34.g3 Ra8 35.Rc7 Ra6 36.h4 Rb4 37.Kg2 h5 38.Rf3+= Rf6 39.Rf6 Kf6-/+ 40.Ra7 Ke6 41.Kf1 Kd5 42.Ke2 Kc4 43.Kd2 Kb3–+ 44.Kc1 f5 45.Ra6 Rg4 46.Kb1 f4–+ 47.Rb6 Kc3 48.gf4 Rh4 49.Rg6 Rf4 50.Kc1? Rf2 51.Rg3 Kb4 52.Rh3 Rf5 53.Rh4 Kb3 54.Rh1 a3 55.Kb1 Rf3 56.Ka1 h4 57.Rb1 Kc2 58.Ka2 h3 0–1. Heyken,E – Ristic,Nen, BRD, 1989.

8.b5 Re8 9.c4 a4 10.d4=.

8.b5 Re8 9.c4 Nbd7 10.Nc3 Nc5 11.e4 Nh5 12.Qc2 Nf4 13.Nd5 f5 14.Nf4 fe4 15.Nd2 ef4=+ 16.Ne4 Bb2 17.Qb2 Ne4 18.de4 Qg5 19.Bf3 Be6 20.Rac1 Rad8 21.Rfd1 Bf7 22.Qd2+= b6 23.a4 Re5 24.Rc2 Rde8= 25.Qd3 Qe7 26.Re1 g5 27.h3 Bg6 28.Rce2 ½–½. Woschkat,Karl_Heinz – Ekman,Lars, compuserve, 1997.

8.b5 Bg4=.

7.d3 a6

8.c4 b5 9.c5 dc5 10.bc5 Bb7 11.d4 ed4 12.ed4 Nc6 13.Nc3 Nd5 14.Qd3 Nc3 15.Bc3 a5 16.Qb5 Qe8 17.Qb2 Ba6 18.Rfe1 Be2 19.Re2 Rb8 20.Qd2 Qc8 21.Rd1 Rd8 22.d5 Nb4 23.Bb4 ab4 24.c6 b3 25.ab3 Rb3 26.Qc2 Rb5 27.Nd4 Rbd5 28.Nf3 Rd1 29.Re1 Re1 30.Ne1 0–1. Chess4Win – rorolman, lichess.org, 2019.

8.Nbd2 b5 9.a3 Bb7 10.c4 bc4 11.dc4 Nbd7 12.Qc2 h6 13.Rac1 Nh7 14.Rfd1 Ng5 15.Ng5 Qg5 16.Bf3 Rab8 17.Bb7 Rb7 18.Ne4 Qe7 19.Qd3 f5? 20.Qd5+– Kh8 21.Qb7 fe4 22.Qe4 Nf6 23.Qd3 Nh5 24.c5 Qh4 25.g3 Qf6 26.f4 Qe6 27.cd6 ef4 28.Bg7 Ng7 29.ef4 cd6 30.Re1 Qd7 31.Qg6 Qa7 32.Kg2 Qb7 33.Qe4 d5 34.Qf3 Rd8 35.Rcd1 Qf7 36.Re5 d4 37.Rd3 Qa2 38.Kh3 Qc4 39.Qe4 Qc8 40.g4 Qc2 41.Rd4 Qc3+= 42.Kh4 Qd4 43.Qd4+/- Rd4 44.f5 Kh7? 45.Ra5 Kg8 46.Ra6 Nf5 47.Kh3 Rd3+= 48.Kg2 Ne3 49.Kg3 Nc4 50.Kf4 Na3 51.h4 Rd4 52.Kf5 Nb5 53.g5 hg5 54.hg5 Rb4 55.Kg6 Kf8 56.Ra8 Ke7 57.Rb8 Kd7 58.Kh7 Rh4= 59.Kg7 Nd6 0–1. ejdrzej (1640) – robrobert (1665), kurnik, 2011.

8.Nbd2 b5 9.c4 Nbd7 10.Qc2 c5 11.cb5 ab5 12.bc5 Nc5 13.d4 e4? (13...Bf5 14.Qd1 Na4 15.de5 Nb2 16.Qb3=) 14.Ne1 Na4 15.Ba3 (worse is 15.Ne4 Ne4 16.Qe4 Bf5-/+) 15...Re8 16.Rb1 Ba6 17.Bb5 Bb5 18.Rb5 Qd7 19.Rb1 Rec8 20.Qb3 Rab8? (20...Nc3 21.Rb2=) 21.Bb4?? Nc3= 22.a3 Nb1-/+ 23.Nb1 Rc7 24.Nd2 Rcb7 25.Qc2 Rc8 26.Qb1 Nd5 27.Ne4= Nb4 28.ab4 Rcb8 29.Nd3 f5 30.Nd2 Qa4 31.Nf3 Bf8 32.Qc1 Qd7 33.Qc4 Kg7 34.d5 Rc8 35.Qd4 Kg8 36.Ng5 Bg7 37.Qh4 h6 38.Ne6+= Qe7 39.Qg3 Rc4? 40.Qg6+– Qf6 41.Qe8 Kh7 42.Ndf4 Rf4? 43.Nf4+– Qg5 44.Rd1 Re7 45.Qd8 Re4 46.Qg5 hg5 47.Ne6 Re6 48.de6 Bf8 49.g3 Be7 50.Rd5 Kg6 51.b5 g4 52.Kg2 Kf6 53.b6 Ke6 54.Rb5 d5 55.b7 Bd6 (55...Bd6 56.Rb6 Kd7 57.Rd6 Kc7+–). ejdrzej (1695) – undita, kurnik, 2012.

8.Nbd2 Nc6 9.a3 b5 10.c4 bc4 11.Nc4 Re8 12.Rc1 Bb7 13.Ncd2 Ne7 14.Qc2 Rc8 15.Nb3 Ned5 16.Nfd2 c5 17.bc5 dc5 18.Nc5 Nd7 19.Nb7 Rc2 20.Nd8 Rc1 21.Rc1 Rd8 22.Ne4 Rb8 23.Ba1 a5 24.g3 h6 25.Kg2 Rb3 26.Nd2 Ra3 27.Bb2 Ra2 28.Nc4 Nc5 29.Ba3 Re2 30.Bc5 a4 31.Ra1 Nc3 32.Bb4 Rc2 33.Bc3 Rc3 34.Ra4 Rd3 35.Nb2 Rd2 36.Ra8 Bf8 37.Nc4 Rc2 38.Ne5 Kg7 39.Ra7 Bc5 40.Rf7 Kg8 41.h4 Be3 42.Kf3 Bd4 43.Re7 Be5 44.Re5 Kf7 45.Re2 Rc3 46.Re3 Rc6 47.g4 Rf6 48.Kg3 Kf8 49.f3 Kf7 0–1. Phomopsis (1615) – yab15, lichess.org, 2019.

8.e4 b5 9.a4 Bb7 10.ab5 ab5 11.Nc3 Ra1 12.Ba1 c6 13.Bb2 Nbd7 14.Nb1 Nb6 15.Na3 Qc7 16.c4 bc4 17.Nc4 Nc4 18.dc4 Ne4 19.Qc2 Nf6 20.h3 Rc8 21.Ba1 Qb6 22.Re1 Qb4 23.Rb1 Qa5 24.Be5 de5 25.Rb7 e4 26.Nh2 Rd8 27.Qb3 Qe1 28.Bf1 Rf8 29.Qb1 Qd2 30.Rb6 e3 31.fe3 Qe3 32.Kh1 Ne4 33.Nf3 Nf2 34.Kh2 Qf4 35.Kg1 Ne4 36.Nh2 Bd4 37.Kh1 Nf2 38.Kg1 Nh3 39.Kh1 Nf2 40.Kg1 Bb6 41.Qb6 1–0. joaquimbage – adicarreo, kurnik, 2012.

8.Nbd2 Nc6

9.a3 Be6 10.c4 Qd7 11.Re1 Rad8 12.Qc2 Ne7 13.Rac1 Ne8 14.e4 f6 15.c5 (15.d4 f5+=) 15...d5 16.ed5 Nd5 17.Ne4 Nf4 18.Bf1 Bf7 (better is 18...Bd5!?+=) 19.d4+= f5 20.Neg5 e4 21.Nf7 Qf7 22.Ne5 Qf6 23.Red1 Qg5+= 24.g3 Nd5 25.Bc4 Kh8 26.h4 Qh5 27.Be2 Qh6 28.c6 b6 29.b5 a5 30.f3?? Ne3-/+ 31.Qd2?? Be5–+ 32.f4 Bf4 33.gf4 Qf4 34.Bc4 Qg3 35.Kh1 Qh4 36.Kg1 Qg3 37.Kh1 Qh4 38.Kg1 Qg3 39.Kh1 Qh4 ½–½. exp2005 – ognik222, kurnik, 2011.

9.a3 Be6 10.c4 Ne7 11.Qc2 c6 12.Ng5 Bd7 13.Rac1 h6 14.Ngf3 Ne8 15.h3 f5 16.d4 (16.c5!?+/-) 16...e4+= 17.Ne1 d5 18.cd5 Nd5 19.Nc4 Kh7 20.g3 Qg5 21.Ng2 Nec7 22.h4 Qe7 23.Ne5 Ne6 24.Nd7 Qd7 25.Bc4 f4 26.Bd5 cd5= 27.ef4 Nd4 28.Bd4= Bd4 29.Qc7 Rf7 30.Qd7 Rd7 31.Rfd1 Bb2 32.Rc5 Ba3 33.Rcd5 Rd5 34.Rd5 Bb4 35.Rd7 Kg8 36.Rb7 Bc5 37.Rc7 Bf8 38.Ne3 a5 39.Rc2 a4 40.Ra2 a3 41.Kg2 Kf7 42.f5 gf5 43.Nf5 Kf6 44.Ne3 Ke5 45.g4 Kd4 46.g5 hg5 47.hg5 Kc3 48.g6 Kb3 49.Ra1 Kb2 50.Rd1 a2 51.Rd2 Kc3 52.Rc2 Kd3 53.Rc1 a1Q 54.Ra1 Ra1 55.Nf5 Ra7 56.Ng3 e3 57.fe3 Ke3 58.Nf5 Kf4 59.Nd4 Kg5 60.Nc6 Ra6 61.Nb8 Rd6 62.Kf3 Kg6 63.Ke4 Kf6 0–1. ejdrzej (1665) – lecie, kurnik, 2011.

9.a3 Be6 10.c4 h6 11.Qc2 Kh7 12.h3 Ng8 13.d4 ed4 14.Nd4 Nd4 15.Bd4 Nf6 16.Nf3 Bf5 17.Bd3 Bd3 18.Qd3 Re8 19.Rac1 c6 20.Rfd1 Qe7 21.Bf6 Qf6 22.Qd6 Qb2 23.Qd3 Rad8 24.Nd4 Bd4 25.ed4 Re2 26.Qf3 Kg8 27.d5 cd5 28.cd5 Rd7 29.Rc8 Kh7 30.h4 f5 31.h5 Rc2?? 32.hg6 Kg7 33.Re8 Qf6 34.Re6 Qg5 35.d6 h5 36.Qd3 Ra2 37.Qd4 Kh6 38.Qh8 Rh7 39.Qh7# 1–0. ejdrzej (1610) – zase (1625), kurnik, 2012.

9.a3 Bg4 10.c4 Nd7 11.h3 Bf3 12.Bf3 f5 13.Qb3 Kh8 14.Rac1 Qe7 15.Rfe1 Nf6 16.d4 e4 17.Be2 g5 18.c5 f4 19.ef4 gf4 20.Bc4 e3 21.fe3 fe3 22.Re3+– Qd7 23.Rd1 Rae8 24.d5 Ne5 25.Be5 Re5 26.Re5 de5 27.Nf3 Nh5 28.d6 c6 29.Be6 Qd8 30.d7 Nf4 31.Qe3?? Qf6?? 32.d8Q! Rd8 33.Rd8 Qd8 34.Bg4 Qd1= 35.Kh2 Ne2?? 36.Ne5 Be5?? 37.Qe5 Kg8 38.Be6 Kf8 39.Qf6 Ke8 40.Qf7 Kd8 41.Qf8 Kc7 42.Qc8 1–0. elsh1403 – keszle1, kurnik, 2011.

9.a3 Bg4 10.h3 Be6 11.c4 Ne7 12.c5 Rb8 13.cd6 cd6 14.Rc1 b5 15.Ng5 Bd7 16.Ngf3 Nf5 17.e4 Ne7 18.Qb3 Be6 19.Qd1 Nh5 20.Ng5 Bd7 21.Bh5 gh5 22.Qh5 h6 23.Ndf3 Ng6 24.g3 Re8 25.Nf7 Kf7 26.Rc2 Kg8 27.Qg6 Re6 28.Qh5 Be8 29.Qg4 Qe7 30.Rfc1 h5 31.Rc7 hg4 32.Re7 Re7 33.hg4 Rf7 34.Nh4 Bd7 35.f3 Bf6 36.Nf5 Bf5 37.gf5 Rg7 38.Kf2 Bg5 39.Rc6 Rd7 40.Ra6 Rc8 41.Be5 de5 42.Rg6 Kf7 43.Rg5 Rd3 44.Ke2 Ra3 45.f4 Rh8 46.fe5 Rh2 47.Kf1 Ra1 0–1. Phomopsis (1650) – MichaelKabatana, lichess.org, 2018.

9.a3 h6 10.c4 Kh7 11.Qc2 Nh5 12.b5 Ne7 13.a4 f5 14.d4 e4 15.Ne1 Nf6 16.g3 c6 17.Ng2 d5 18.bc6 bc6 19.cd5 cd5 20.Nf4 g5 21.Ng2 Ng6 22.Ba3 Rf7 23.Nb3 f4 24.ef4 gf4 25.Bd1 Bh3 26.Nc5 Qc8 27.Rc1? Bg2–+ 28.Kg2 f3 29.Kh1 Qh3 30.Rg1 Ng4 (30...Ng4 31.Qe4 Nf2#) 0–1. ejdrzej (1780) – halfprice (1920), kurnik, 2012.

7.d3 b6

8.c4 Bb7 9.Nc3 Nc6 10.Qb3 h6 11.Nd2 Ne7 12.Bf3 Bf3 13.Nf3 g5 14.d4 Ng6 15.de5 de5 16.Rfd1 Qe7 17.Nd5 Nd5 18.cd5 g4 19.Nd2 Kh7 20.Ne4 (20.Rac1 f5+/-) 20...f5+= 21.d6 (21.Nc3!?+=) 21...cd6 22.Nd6 Rad8 23.Nb5 Nh4 (23...f4 24.ef4 Rf4 25.a3+=) 24.Qc4 (24.Nc3 Qf7 25.Rd5 f4+=) 24...Qb7 25.Qf1 a6 26.Nd6 (better 26.Nc3!?=) 26...Qe7-/+ 27.Nc4 b5 28.Na5 (28.Rd8 Rd8 29.Na5 Rd2=+) 28...Rd1-/+ (worse 28...Qb4 29.Rd8 Rd8 30.Nc6 Qb2 31.Nd8=) 29.Qd1 (29.Rd1!? Qb4 30.Nb3-/+) 29...Qb4 30.Nb3 Qe4 31.Qf1 Rd8 (31...Rc8 32.Rc1 Rc1 33.Bc1-+) 32.Rc1-/+ a5 33.Rc7?? (33.Na5 Qb4 Double attack (33...Qb4 Decoy)) 33…Rd1!! (33...Rd1 34.Rg7 Kg7 35.Be5 Kg8 36.f3 Qe3 37.Kh1 Rf1) 0-1. Gaprindashvili,V (2365) - Asgarov,M (2170), Baku Summer Festival IM, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Be2 0-0 6.0-0 e5 7.d3 b6)

8.c4 Bb7 9.Nc3 Nbd7 10.Nd2 c6 11.Bf3 d5 12.Qb3 dc4 13.Nc4 Qb8 14.a4 Rd8 15.Ne4 Ne4 16.Be4 Kh8 17.f4 f5 18.fe5 (better 18.Bf3 ef4 19.ef4+=) 18...Ne5? (18...fe4 19.e6 b5 20.Bg7 Kg7 21.Rf7 Kh6+/-) 19.Ne5+- Be5 20.Bf5! c5 (20...gf5 21.Qe6 Double attack (21.Qe6 Decoy)) 21.Be6 Qd6? (better 21...Re8 22.Bc4 Qd6+-) 22.bc5 bc5 23.Qb7 Qe6 24.Qe4 (better 24.Rf7 Qf7 25.Qf7 (25.Be5 Kg8 26.Qb5 Qe6=+) 25...Bb2 26.Rb1+-) 24...Rd5+/- 25.Rf6! Qf6 (25...Bf6 26.Qe6 Double attack (26.Qe6 Pinning; 26.Qe6 Deflection; 26.Qe6 Decoy); 25...Qf6 26.Qf3 Double attack (26.Qd5 Deflection; 26.Qf3 Decoy)) 26.Qd5 Re8 27.Rf1 Bh2 28.Kh2 Qb2 29.Qc5 Qg7 30.e4 Kg8 31.Qd5 Kh8 32.Qc5 Kg8 33.Qd5 Kh8 34.Kg1 Qc7 35.Qf7 Qb6 36.Kh1 Rd8? (36...Qd8 37.a5+-) 37.e5 (better 37.Qe7 Kg8 38.Rf7+-) 37...Qd4?? (37...Rb8 38.Qe7 Qd8 39.Rf7 Qe7 40.Re7+-) 38.Qf6 (38.Qe7 Kg8 39.Rf7 Qe5 40.Qe5 Kf7 41.Qc7 Ke8 42.Qh7 g5+-) 38...Kg8 39.Qf7 Kh8 40.Qe7 Kg8 41.Rf7 (41.Rf7 Qe5 42.Qe5 (42.Qd8?! Kf7 43.Qh4 h6=) 42...Kf7 43.Qc7 Ke8 44.Qh7+-) 1-0. Aleksandrov,A (2570) - Socko,B (2625), 26th Abu Dhabi Masters, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3 b6).

8.c4 Nbd7 9.Nbd2 Bb7 10.Qc2 a6 11.Rab1 Qe7 12.c5 (12.Ng5 a5 13.b5 d5=) 12...dc5 (12...bc5 13.bc5 Nc5 14.Ne5=) 13.bc5 Nc5 14.Ne5 (14.Be5 Rac8=) 14...Nh5 (14...Nd5 15.d4=) 15.Nec4 (15.d4!? Be5 16.de5+=) 15...Bb2 16.Rb2 (16.Bh5 Bf6 17.Bf3=) 16...Rad8 (better 16...Nf4! 17.ef4 Qe2=+) 17.d4+= Ne6 18.Bh5 gh5 19.Na5 (19.f4 f5+=) 19...Ba8 (better 19...Bg2!? 20.Kg2 Qg5 21.Kh1 Qa5= (21...ba5?? 22.Rg1+–)) 20.Nc6+– Qg5? (better 20...Bc6 21.Qc6 Qd7+–) 21.Ne4+– Qg7 (21...Qh6 22.Nd8 Rd8 23.f4+–) 22.Nd8 Rd8 23.f3 (23.f4 Re8 24.Ng3 h4+–) 23...f5? (better 23...h4+–) 24.Ng3 Qf7 (24...f4 25.Nf5 Qf6 26.e4+–) 25.Qf5 Qf5 (25...Rd5 26.Qh3 Qe8 27.Qh4+–) 26.Nf5 Kf7 27.Rc2 (27.Rc1 b5+–) 27...Kf6 (27...c5 28.Rb1 cd4 29.Rb6 de3 30.Ne3+–) 28.Ng3 (28.e4!? c6+–) 28...h4 29.Ne4 Kf5 (29...Kg6 30.Nf2+–) 30.Nf2 (30.Nc3 Kf6+–) 30...Rg8 (30...Kg5 31.Rb1+–) 31.Nd3 (better 31.e4 Kf6 32.d5+–) 31...h5 (31...Kf6+–) 32.e4 Kf6 (32...Be4 33.fe4 Ke4 34.Nb4 Nd4 35.Rc7+–) 33.d5 Nd4 (33...Rd8 34.Rd1 Bd5 35.ed5 Rd5 36.Rc6+–) 34.Rc7 h3 (34...Nb5 35.Rd7 h3 36.g3+–) 35.g3 Ne2 (35...Rb8 36.Rc4 Nf5 37.Rfc1+–) 36.Kf2 Nd4 37.Nf4 Ke5 (37...Nb5 38.Nh5 Kg5 39.Rg7 Rg7 40.Ng7+–) 38.Rfc1 h4 39.Nh3 hg3 (39...Re8 40.Rc8 hg3 41.hg3 Rc8 42.Rc8 Bd5 43.ed5 Kd5 44.Nf4 Ke5 45.Rd8+–) 40.hg3 Rh8 (40...Nb5 41.Re7 Kd4 42.d6 Nd6 43.Rd1 Kc5 44.Rc7 Bc6 45.Rd5 Kb4 46.Rc6+–) 41.Kg2 (41.Nf4 Kd6+–) 41...Bd5 (41...Nf3 42.Nf4 Nh4 43.gh4 Kf4 44.Rc8+–) 42.ed5 Kd5 (42...Rb8 43.Nf4 a5 44.R7c4+–) 43.Rd1 (43.Rd7 Ke5 44.Nf4 Rh6 45.Rd5 Kf6 46.Rd6 Ke7 47.Rh6 Kd8 48.Rd1 Kd7 49.Rd4 Kc7 50.Nd5 Kb8 51.Rh7 b5 52.Re4 b4 53.Re8) 43...Kd6 44.Rc4 Ke5 45.Rcd4 (45.Rcd4 Kf6 46.Rd6 Ke7 47.Rd7 Ke8 48.Rd8 Ke7 49.R1d7 Kf6 50.Rh8 Ke6 51.Rhh7 Ke5 52.Rhf7 b5 53.Nf4 b4 54.Rd5) 1–0. Souza,Kim Garcia De (1765) – Borghezan,Laryssa Zanini, 61st Parana Teams Women, 2018.

8.Nbd2 Bb7

9.c4 Nbd7 10.a4 a5 11.b5 Nc5 12.Nb3 Nb3 13.Qb3 Qd7 14.h3 Qf5 15.e4 Qe6 16.Ng5 Qd7 17.Bc1 h6 18.Nf3 Kh7 19.Be3 Nh5 20.Nh2 f5 21.ef5 Qf5 22.Bg4 Qf6 23.Rad1 Nf4 24.Nf3? h5 25.Bf4 hg4 26.Ng5+= Kg8 27.Be3= gh3 28.Nh3 Qh4 29.c5 d5 30.c6+/- Bc8 31.Bg5 Qd4= 32.Be3 Qh4 33.Qd5 Kh8 34.Bg5 Qh5 35.Rde1?? Bh3–+ 36.gh3 Qg5 37.Kh1 Qf5 38.Qg2 Qf3 39.Re3 Qg2 40.Kg2 Rad8 41.Rfe1 Rf4 0–1. ejdrzej (1630) – wengryboy (1720), kurnik, 2011.

9.e4!?+=.

9.Ng5 Nd5+= 10.b5? Qg5–+ 11.c4 (11.Nf3 Qf6 12.c4–+) 11…Ne7 (11...Ne7 12.Bf3 Bf3 13.Qf3 Nd7–+) 0–1. elsh1403 – alexcoinc, kurnik, 2011.

9.Ng5 Nd5+= 10.Bf3? Qg5–+ 11.c4 e4?? (better is 11...Ne3 12.fe3 e4–+) 12.Be4?? (better is 12.Ne4 Qe7 13.Bg7 Kg7 14.cd5 Bd5 15.Nc3 Bf3 16.Qf3+= (worse is 16.gf3 c6+=)) 12…Bb2–+ (12...Bb2 13.Rb1 Ne3 14.fe3 Qe3 15.Kh1 Be4 16.Ne4 Be5–+) 0–1. elsh1403 – alexcoinc, kurnik, 2011.

9.Ng5 Nd5+= 10.Ngf3 Nb4 11.a3+=.

7.d3 c6

8.c4 Re8 9.a4 Nbd7 10.a5 Nf8 11.Nbd2 Ne6 12.Qc2 Qe7 13.Rfc1 Nc7 14.c5 Nfd5 15.cd6 Qd6 16.Nc4 Qf8 17.Be5 Be5 18.Nce5 f6 19.Nc4 Nb4 20.Qb2 Ncd5 21.Qd2 Nc7 22.Ra4 Nca6 23.d4 Bf5 24.Ne1 Rad8 25.Qb2 Qe7 26.Nd2 Rd7 27.Bc4 Kg7 28.h3 h5 29.Rd1 Red8 30.Be2 Kh7 31.Rc1 Kh8 32.Bc4 Kg7 33.Qb3 g5 34.Nf1 h4 35.Qb2 Bg6 36.Nd2 Qd6 37.Ra3 Kf8 38.Nef3 Re7 39.Rb3 Rdd7 40.Bf1 Rg7 41.e4 Qe7 42.Bc4 Bf7 43.e5 Bc4 44.ef6 Qf6 45.Rc4 Nd5 46.Ne5 Rde7 47.Rf3 (47.Rf3 Nf4 48.g3 hg3 49.fg3 Nh3 50.Kf1+–) 1–0. Woelfelschneider,Peter (2045) – Garibaldi,Lucio Manuel (1725), CFriend SI–2004–0-00022 email, 2004.

8.Nbd2 Na6 9.a3 Nc7 10.c3 Nd7 11.d4 Qe7 12.de5 Ne5 13.Qb3 Be6 ½-½. Muradyan,Robert (2120) - Safin,Robert (2175), 17th Somov Memorial, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3 c6)

8.Nbd2 b6 9.c4 Bb7 10.a4 Qc7 11.h3 Nbd7 12.b5 Rad8 13.Qb3 Ba8 14.bc6 Qc6 15.Qb5 Qb7 16.a5 Rc8 17.a6 Qc6 18.Qc6 Bc6 19.Rfc1 Rb8 20.Ba3 Ne8 21.Rab1 Nc5 22.Bc5 dc5 23.Nf1 Nc7 24.Ra1 e4 25.N3d2 Ba1 26.Ra1 ed3 27.Bd3 b5 28.cb5 Nb5 29.Nc4 f6 30.Nb2 Bd5 31.Bc4 Bc4 32.Nc4 Rfe8 33.Nfd2 Re6 34.g3 Nc7 35.Rb1 Rb1 36.Nb1 Ra6 37.Nbd2 Ra1 38.Kg2 a5 39.Nb3 a4 40.Nc5 Nb5 41.Kf3 a3 42.Nb3 Rb1 43.Nbd2 Rc1 44.Na3 Na3 45.Ne4 Kf7 46.Kf4 Nc4 47.h4 Ne5 48.Nd6 Ke6 49.Nb5 Nd3 50.Ke4 Nf2 51.Kf3 Nd3 52.Nd4 Kd5 53.Ne2 Rc7 54.g4 h6 55.e4 Ke5 56.Ng3 Rc4 57.Ke3 Nc5 58.Ne2 Re4 59.Kf3 Ra4 60.Nc3 Ra3 0–1. Phomopsis (1720) – james_safadao (1715), lichess.org, 2020.

8.Nbd2 Qb6 9.a3 a5 10.c3 ab4 11.cb4 c5 12.Nc4 Qc6 13.bc5 Qc5 14.d4 ed4 15.Bd4 Qc7 16.Bb6 Qc6 17.Nd4 Qd7 18.Qb3 Nc6 19.Nc6 bc6 20.a4 d5 21.Nd2 Ne4 22.Rad1 Nd2 23.Rd2 Rb8 24.a5 Qa7 25.Ba7 Rb3 26.Bb6 Bd7 27.Bd3 Ra8 28.Rb1 Rb1 29.Bb1 Bc3 30.Ra2 Be6 31.Ra4 Bd7 32.Ra3 Bb4 33.Ra2 c5 34.g3 Bc6 35.Rc2 c4 36.Rb2 Ba5 37.Ba5 Ra5 38.Rb8 Kg7 39.Rc8 Ra1 40.Rc6 Rb1 41.Kg2 Rc1 42.Kf3 c3 43.Ke2 Rc2 44.Kf3 Kh6 45.h4 f5 46.Rc5 Rc1 47.Ke2 Rc2 48.Kf3 Rc1 49.Ke2 c2 50.Kd2 Rf1 51.f4 Rf3 52.Rd5 c1Q 53.Kc1 Re3 54.Kd2 Rg3 55.Rd3 Rd3 56.Kd3 Kh5 57.Ke3 Kh4 58.Kf3 h6 59.Ke3 Kg3 60.Ke2 Kf4 61.Kf1 g5 62.Kg2 g4 63.Kh2 h5 64.Kg2 h4 65.Kh2 h3 66.Kg1 Kf3 0–1. Phomopsis – alex21022102 (1730), lichess.org, 2018.

8.Nbd2 Nbd7 9.c4 Qb6 10.a3 d5 11.cd5 cd5 12.Be5 Ne5 13.Ne5 Bf5 14.d4 Qd6 15.Qb3 a6 16.Rac1 Rac8 17.h3 h5 18.b5 ab5 19.Bb5 Ne4 20.Ne4 Be4 21.a4 Be5 22.de5 Qe5 23.Bd7 Rc1 24.Rc1 Qd6 25.Qb7 Rd8 26.Bb5 Kg7 27.Qc6 Qe5 28.Qc3 Qc3 29.Rc3 f5 30.f3 Bb1 31.Rc7 Kf6 32.Kf2 Rd6 33.Rc6 Rc6 34.Bc6 Ba2 35.Ke2 Ke5 36.Kd3 Kd6 37.Bb5 Kc5 38.Kc3 Bc4 39.Be8 g5 40.Bh5 f4 41.ef4 gf4 42.Be8 Bf1 43.h4 Bg2 44.h5 Bf3 45.h6 Be4 46.Bb5 Kd6 47.Kd4 Ke7 48.Ke5 Kf7 49.a5 f3 50.a6 1–0. Phomopsis (1620) – Bubba26 (1625), lichess.org, 2019.

8.Nbd2 Be6 9.c4 Nbd7 10.Qc2 Rc8 11.a4 a5 12.b5 c5 13.d4 ed4 14.ed4 cd4 15.Nd4 Nc5 16.Ne6 fe6 17.Bf3 Qc7 18.Rfc1 e5 19.Ne4 Nfe4 20.Be4 Ne4 21.Qe4 Rf4 22.Qd5 Kh8 23.g3 Rc4 24.Rc4 Qc4 25.Qd6 Qc5? 26.Qd7 Qc7 27.Qd5 Qc5 28.Qb7 Qc2?? 29.Rc1+– Qc1 30.Bc1 Rc1 31.Kg2 Bf6 32.Qa8 Kg7 33.Qa5 e4 34.Qd2 Rc3 35.b6 Ra3 36.a5 Bc3 37.Qd7 Kh6 38.b7 Rb3 39.a6 Be5 40.Qd5 Bb8 41.Qb3 (41.Qb3 Kg7 42.Qb6 Kh6 43.Qc5 Kg7 44.Qe7 Kh6 45.Qf8 Kh5 46.Qb8 g5 47.Qe8 Kh6 48.Qe6 Kg7 49.b8Q e3 50.Qbg) 1–0. ejdrzej (1660) – kfr, kurnik, 2012.

8.Nbd2 Be6 9.c4 Nbd7 10.Qc2 Rc8 11.a4 h6 12.a5 Nh5 13.h3 f5 14.d4 e4 15.Ne1 Qh4 16.Rc1 Ndf6?? (16...Nhf6 17.a6 Rb8 18.Ra1=) 17.Qb3?? (17.Nef3 ef3 18.Nf3 Qe4+–) 17...f4?? (better is 17...d5=) 18.d5?? (better is 18.Nef3!? ef3 19.Nf3+–) 18...Bh3?? (better is 18...cd5 19.Nef3 ef3 20.Nf3 Ng3 21.Nh4 Ne2 22.Kh2 Nc1 23.Rc1 dc4=) 19.Bf6 Rf6 20.Ne4+– Rf5 21.dc6 bc6 22.Nd6 Rg5? 23.c5 Kh7 24.Nf7 Rg2?! 25.Ng2 Bg2 26.Kg2 (26.Kg2 Ng3 27.Qe6 Nf1 28.Rf1+– (28.Qc8?? Qh2 29.Kf3 Nd2 30.Kg4 h5 31.Kg5 Ne4)) 1–0. ejdrzej (1650) – kwapimat, kurnik, 2012.

8.Nbd2 Be6 9.c4 Nbd7 10.Ng5 h6 11.Ne6 fe6 12.Qb3 Qe7 13.a4 a6 14.Rac1 Kh7 15.f4 ef4 16.e4 e5 17.Nf3 Ng4 18.Rfd1 Ne3 19.Rd2 g5 20.h3 g4 21.hg4 Ng4 22.d4 Ne3 23.de5 Ne5 24.Ne5 de5 25.c5 Qg5 26.Bf3 Rad8 27.Rd6 Rd6 28.cd6 Ng2 29.Bg2+= f3 30.Qc2 fg2 31.Qg2 Rd8 32.Qg5+= hg5 33.Rd1 Kg6 34.Kf2 Kf6 35.Kg3 Ke6 36.Kg4 Bf6 37.Rh1? Rd6–+ 38.Rh7 Rd7 39.Rh6? b5 40.ab5 cb5 41.Bc1 Rd4 42.Bg5-/+ Re4 43.Kf3 Rb4 44.Bf6?? e4 45.Ke3 Kd5 46.Rh5 Ke6 47.Bc3 Rb3-/+ 48.Kd4 b4 49.Rh6 Kf5 50.Be1 Rb1 51.Rh5 Kf4 52.Bd2 Kf3 53.Rf5 Ke2 54.Bg5 b3 55.Ke4 b2 56.Bf6= a5 57.Ra5 Kd2 58.Bg5 Kc2 59.Rc5 Kb3 60.Bf6 Re1 61.Kd5 b1Q 62.Rb5 (62.Rb5 Ka4 63.Rb1 Rb1 64.Kc4+=) 1–0. bratek55 – 11malpa, kurnik, 2011.

8.Nbd2 Be6 9.c4 h6 10.Qc2 Nbd7 11.a4 a6 12.a5 Nh5 13.h3 f5 14.d4 e4 15.Ne1 Qh4 16.d5 (16.g4 fg4 17.hg4 Bg4=) 16...Bf7 (better is 16...cd5!? 17.Bg7 Ng7 18.cd5 Bd5+=) 17.Bh5 Qh5 18.Bg7 Kg7 19.dc6 bc6 20.c5 (20.Qc3 Kg8+=) 20...d5 21.Nb3 Nf6 22.Nd4 Rac8 23.Qe2 Qe2+= 24.Ne2 Rb8 25.Rb1 Rfc8 26.Nd4 Nd7 27.Nec2 Ne5 28.Rb3 Nd3 29.h4 Kf6 30.f3 g5 31.hg5+= hg5 32.fe4 de4 33.Rf5 Kg6 34.Rb1 Bd5 35.Rbf1 Nb4 36.Rf6 Kh5 37.Nb4 Rb4 38.Nf5 Rh8 39.Ne7 Rc4 40.Nc6 Rc5 41.Nd4 Ra5+= 42.R6f5 Ra3?? 43.Rd5+– Re3 44.Nf5 Rd3 45.Rd3?? ed3+/- 46.Rd1 Rd8= 47.Rd2 a5 48.Kf2?? Kg4?? 49.Ne3+– Kf4 50.g3 Ke4 51.Nc4 a4 52.Na3?? Kd4 53.Ke1 Kc3 54.Kd1 Rf8 55.Nb5-/+ Kc4 56.Nd6 Kc3 57.Ne4 Kd4 58.Ke1?? Ke4–+ 59.g4 Ke3 60.Ra2 Rb8 61.Ra1 Rb2 62.Rc1 a3 63.Kd1 a2 (63...a2 64.Rc8 a1Q 65.Rc1 Rd2 66.Ke1 Qc1; 63...Rh2 64.Rc8 Rh1) 0–1. ejdrzej (1735) – abasifawal (1785), kurnik, 2011.

8.Nbd2 Re8 9.c4 Bg4 10.h3 Bf3 11.Bf3 (worse is 11.gf3 Qd7+=) 11...Nbd7 12.Qc2 a6 13.a4 Rc8 14.a5 Nf8 15.d4 ed4 16.Bd4 Ne6 17.Bb2 d5 18.Rfd1 Qe7 19.c5 Nd7 20.Bg7 Kg7 21.Bg4 Ne5 22.Be6 fe6 23.Nb3 Qf6 24.Nd4 Rf8 25.Rf1 Nc4 26.Rae1 e5 27.Nf3 e4 28.Nd4 Ne5 29.Rd1 Rce8 30.Ne2 Kh8 31.Qc3 Nd3 32.Qf6 Rf6 33.Rb1? Ref8-/+ 34.Nd4 Rf2 35.Rf2 Rf2 36.Ne6 Rf7 37.Nd4 Kg8 38.Ne2 Rf6 39.Nd4 Kf7 40.Nc2 Ne5 41.Rf1 Nc4 42.Rf6 Kf6 43.Kf2 Ke5 44.Nd4 Nb2 45.Ke2 Nd3 46.Nc2 Kf6 47.g3 h6 48.Kd2 Ne5 49.Ke2 Nf3 50.h4 Kf5 51.Kf2 Kg4 52.Na3 Ne5 53.Nc2? Kh3 54.Nd4 Nd3 55.Kg1 Nb4 56.Ne6 Nd3 57.Nf8 g5 58.hg5 hg5 59.Ne6 g4 60.Nf4 Kg3 61.Ne2 Kf3 62.Nd4 Ke3 63.Ne6 g3 64.Nd8 Nc5 65.Kg2 d4 66.Kg3 d3 67.Nf7 d2 68.Ne5 d1Q 69.Nc4 Kd4 70.Nd6 Qf3 71.Kh4 Kd5 (71...Kd5 72.Nc8 e3 73.Ne7 Ke4 74.Kg5 Ne6 75.Kh6 Qf6 76.Ng6 Kf5 77.Kh5 Qg5#; 71...Ke5 72.Ne4 Kf4 73.Nf2 Qg3 74.Kh5 Qg5#) 0–1. ejdrzej (1620) – zaver35 (1970), kurnik, 2012.

8.Nbd2 Bg4 9.c4 Nbd7 10.h3 Bf3 11.Bf3 (worse is 11.gf3 Qe7+=) 11...d5 12.c5 Re8 13.Qc2 Qc7 14.a4 e4 15.de4 de4 16.Be2 Ne5 17.Nc4 Nc4 18.Bc4 Rad8 19.Rad1 Nd5 20.Bg7 Kg7 21.Bd5 cd5 22.Rd4 Qc6 23.b5 Qe6 24.Rfd1 f5 25.Qb2 Kg8 26.Qb3 Qe7 27.Rd5 Rd5 28.Qd5 Kg7 29.Qd6 Qf7 30.c6 bc6 31.bc6 Rb8?? 32.Qb8 (32.Qb8 Kh6 33.Qf4 Kg7 34.Rd7 Kf8 35.Qc7 Kg7 36.Rf7 Kg8 37.Rh7 Kf8 38.Qd8#) 1–0. ejdrzej (1660) – jefersondias, kurnik, 2012.

8.Nbd2 Bg4 9.h3 Be6 10.c4 a5 11.a3 ab4 12.ab4 Ra1 13.Qa1 Nbd7 14.Ng5 Re8 15.Qa7 Qc7 16.Ra1 h6 17.Nge4 Ne4 18.Ne4 Nb6 (18...f5 19.Ng3=) 19.c5 (better is 19.Nd6!? Qd6 20.Qb6 Bc4 21.dc4+–) 19...dc5= 20.bc5 Nc8 21.Qa5 Qe7 22.Ba3 f5 23.Nd6 Rd8 24.Rb1 Nd6 25.cd6 Qd7 26.Qc7?? Bf8?? 27.Rb7+– Qc7 28.dc7 Rc8 29.Bf8 Kf8 30.d4 ed4 31.ed4?? Ke7= 32.g4 Kd7 33.gf5 gf5 34.Kg2 Rc7 35.Rb2 Kd6 36.Kg3 Kd5 37.Rd2 Ra7 38.Bf3 Kd6 39.Rc2 Ra3? 40.Kf4 Bd5= 41.Bd5 Kd5 42.Rc5 Kd4 43.Rc6 Rh3 44.Kf5 Rf3 45.Kg6 Rf2 46.Kh6 Kd5 47.Ra6 Ke4 48.Re6 Kf5 49.Ra6 Rh2 50.Kg7 Rg2 51.Kf7 Rh2 52.Ra5 Ke4 53.Ke6 Kf3 54.Ra3 Ke4 55.Ra4 Kd3 56.Ke5 Rh5 57.Kf6 Rb5 58.Ra3 Kc4 59.Ra4 Rb4 60.Ra8 Rb6 61.Ke5 Rb5 62.Ke4 Kc5 63.Rc8 Kb6 64.Rc1 Rb4 65.Kd5 1–0. bratek55 (1645) – anyrteb (1805), kurnik, 2011.

8.e4 Bg4 9.h3 Bf3 10.Bf3 a5 11.a3 ab4 12.ab4 Nbd7 13.c4 Ra1 14.Ba1 Qa8 15.Nc3 Qa7 16.b5 Ra8 17.bc6 bc6 18.Ne2 Nc5 19.d4 ed4 20.Bd4 Nfe4 21.Be4 Bd4 22.Qd4 Ne6 23.Qd6 Qc5 24.Qc6 Qc6 25.Bc6 Ra2 26.Ng3 Nc7 27.Bd5 Nd5 28.cd5 Rd2 29.Ne4 Rd4 30.f3 Kg7 31.d6 f5 32.Ng5 Rd6 33.h4 h6 34.Nh3 Rd4 35.g3 Rd2 36.Rc1 g5 37.hg5 hg5 38.Ng5 Kg6 39.Nh3 Ra2 40.g4 fg4 41.fg4 Ra3 42.Kg2 Rb3 43.Rc5 Ra3 44.g5 Rb3 45.Rc6 Kg7 46.g6 Ra3 47.Nf4 Ra4 48.Nh5 Kh6 49.g7 Kh7 50.Rc8 Rg4 51.Kh3 Rg7 52.Ng7 Kg7 53.Kg4 Kf6 54.Rc5 Ke6 55.Kf4 Kd6 56.Rf5 Ke6 57.Ke4 Kd6 58.Re5 Kc6 59.Kd4 Kd6 60.Kc4 Ke5 ½–½. joaquimbage – puder12, kurnik, 2012.

8.Nbd2 a5

9.a3 ab4 10.ab4 Ra1 11.Qa1 Nbd7 12.c4 Nb6 13.h3 Be6 14.Ng5 h6 15.Ne6 fe6 16.c5 dc5 17.bc5 Nbd7 18.d4 ed4 19.Bd4 Qe7 20.Bc4 Kh7 21.Nb3 Nd5 22.Bd3 e5 23.Bb2 Nb4 24.Be4 Nc5 25.Nc5 Qc5 26.Qb1 Nd5 27.Bg6 Kh8 28.Rc1 Qe7 29.Qd3 Qf6 30.Rc4?? Qf2–+ 31.Kh2 Ne3 32.Rg4 Ng4 33.hg4 Qh4 34.Qh3 Qh3 35.gh3 Rf2 (35...Rf2 36.Kg3 Rb2–+) 0–1. elsh1403 – mrpilenai, kurnik, 2011.

9.a3 ab4 10.ab4 Ra1 11.Qa1 Nbd7 12.c4 Re8 13.h3 Qe7 14.Re1 d5 15.c5 h6 16.e4 d4 17.Nc4 Nh5 18.Nd6 Rf8 19.Nd2 Nf4+= 20.Bf1? Qg5?? 21.g3 Nd3 22.Bd3 Qd2 23.Bc4 Qb4 24.Ba3 Qa5 25.Rb1 Nc5 26.Nc8 Rc8 27.Bc5 Qc5 28.Bf7 Kf7 29.Qa2 Kf6 30.Rb7 Qf8 31.Kg2 g5 32.h4 gh4 33.gh4 Kg6 34.Qe2 Qf4 35.h5 Kh7 36.f3 Qg5 37.Kf2 Rd8 38.Qc4 Qh5 39.Qe6 Qh4 40.Ke2 Qg5 (40...Qg5 41.Qf5 Qf5 42.ef5 Rf8–+) 0–1. ejdrzej (1625) – zaver35 (1925), kurnik, 2012.

9.a3 ab4 10.ab4 Ra1 11.Ba1 Qb6 12.c3 d5 (better is 12...Be6!?=) 13.Ne5+/- Re8 14.Nef3 Ng4 15.Qc2 Na6 16.h3 Ne5 17.Ne5 Be5 18.Nf3 Bg7 19.Bb2 Nc7 20.Qb3 Be6 21.c4 dc4 22.dc4 Bb2 23.Qb2 Na6 24.b5 Nc7 25.Nd4 cb5 26.Ne6 Re6 27.cb5 Re5?? 28.Rb1 Rd5 29.Qb3 Qd6 30.Bc4 Rf5 31.b6 Ne8 32.g4 Rf6 33.g5 Rf5 34.h4 Qd2 35.Rf1 Nd6 36.Qd3 Qb4 37.Rc1 Qb6 38.Ba2 Qb2 39.Rf1 Qa2 40.Qd6 Qa8 41.e4 Ra5 42.Rb1 Ra1 43.Ra1 Qa1 44.Kg2 Qa8 45.e5 Qc8 46.h5 gh5-/+ 47.Qf6 Qc6 (47...Qc6 48.Qc6 bc6–+) 0–1. ejdrzej (1745) – lolidragon, kurnik, 2012.

9.ba5 Ra5 10.c4 Nbd7 11.a3 Nc5 12.Nb3 Nb3 13.Qb3 Qc7 14.Qc2 Bf5 15.Nh4 Be6 16.Nf3 Rfa8 17.h3 Nd7 18.Ng5 Nc5 19.Ne6 Ne6 20.Bg4 Nc5 21.d4 Na4 22.Bf3 Nb2 23.Qb2 ed4 24.ed4 R5a7 25.Rab1 Re8 26.Rfd1 Qe7 27.Qb6 Ra3 28.Qb7 c5?? 29.Qe7+– Re7 30.dc5 dc5 31.Rb8 Bf8 32.Bd5 Kg7= 33.Rb7 Rb7 34.Bb7 Ra7 35.Bd5 Be7 36.g3 Bf6 37.Rb1 Bd4 38.Rb7 Rb7 39.Bb7 Kf6 40.Bd5 Ke7 41.Kg2 f5 42.f4 Kf6 43.Kf3 h6 44.g4 g5 45.fg5 Kg5 46.gf5 Kf5 47.Bf7 Kg5 48.Kg2 Kf4 49.Bd5 Kg5 50.Be6 Kf4 51.Bd5 Kg5 52.Kf3 h5 53.Kg3 h4 54.Kf3 Bg1 55.Be6 Bh2 56.Bd5 Bg1 57.Be6 Bh2 58.Bd5 Bg1 ½–½. ejdrzej – begemoth (1705), kurnik, 2012.

9.ba5 Ra5 10.c4 Nbd7 11.Qc2 Qe7 12.h3 Ra8 13.a4 b6 14.d4 ed4 15.Nd4 Bb7 16.Bf3 d5 (16...Ne5!?=) 17.cd5+= Nd5 18.Rfd1 (18.Nc6 Bc6 19.Bg7+/- (worse is 19.Qc6 Bb2 20.Qd5 Ra5+=)) 18...c5= 19.Nb5 N7f6 20.Qb3 Nb4 21.Bb7 Qb7 22.Nf3 Rfd8 23.Bc3 Nfd5 24.Bg7 Kg7 25.Nc3 Nc3 26.Qc3 Kg8 27.Rd8 Rd8 28.a5 Rd3 29.Qf6 ba5 30.Ra5 Qc7?? 31.Ra8+– (31.Ra8 Rd8 32.Rd8 Qd8 33.Qd8 Kg7 34.Ne5+–) 1–0. ejdrzej (1730) – keszle1 (1675), kurnik, 2011.

7.d3 Nc6

8.a3 a6 9.Nbd2 Re8 10.c4 b6 11.Qc2 h6 12.Rac1 Bd7 13.Rfd1 Qe7 14.Nb3 a5 15.Bc3 (15.b5!? a4 16.Nbd2=) 15...ab4-/+ 16.ab4 Ra4 17.b5 Nb4 18.Bb4 Rb4 19.e4 c6 20.bc6 Bc6 21.Qc3 Ra4 22.Ra1 Rea8 23.Ra4 Ra4 24.Ra1 Qa7 25.Ra4 Qa4 26.Nfd2 Nd7 27.g3 h5 28.Bd1 Bh6 29.Bc2 Qa3 30.Nb1 Qa2 31.N3d2 Nc5 32.Kf1 b5 33.cb5 Bb5 34.Kg2 Qa6 35.d4 ed4 36.Qd4 Qa2 (better 36...h4-/+) 37.Bd1? (better 37.Qd6 Qc2 38.Qb8 Kg7 39.Qb5 Ne4 40.Qc4 Qc4 41.Nc4=) 37...Bd3-+ 38.Qd6?? (better 38.Qb4-+) 38...Bd2 (38...Bb1?! 39.Nb1 Qb1 40.Bh5 Ne4 41.Qa6-+) 39.Nd2 (39.Qd8 Kh7 40.Nd2 Qd2-+) 39...Qd2 40.Qd8 (40.Qb8 Kh7 41.Qa7 Nd7-+ (41...Qd1?! 42.Qf7 Kh6 43.Qf8 Kh7 44.Qf7 Kh6 45.Qf8 Kh7 46.Qf7=)) 40...Kh7 41.Qe7 Be4 (41...Qd1?! 42.Qf7 Kh6 43.Qf8 Kh7 44.Qf7 Kh6 45.Qf8 Kh7 46.Qf7=) 42.Kh3 (42.Bf3 Bf3 43.Kf3 Qd5 44.Ke2-+) 42…Qf2 (42...Qf2 43.Bg4 hg4 44.Kh4 Ne6 45.h3 Qf5 46.hg4 g5 47.Kh3 Qf1 48.Kh2 Qg2; 42...Qd1?! 43.Qf7 Kh6 44.Qf8 Kh7 45.Qf7 Kh6 46.Qf8 Kh7 47.Qf7=) 0-1. Bobanac,M (2305) - Fercec,N (2450), 24th Bosnjaci Open, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nc6)

8.a3 e4 9.de4 Ne4 10.Bg7 Kg7 11.c4 Qf6 12.Ra2 Re8 13.Nfd2 Nc3 14.Nc3 Qc3 15.Nb1 Qf6 16.Qd2 Be6 17.Nc3 Ne5 18.Nd5 Qd8 19.f4 Nd7 20.Qc3 Kg8 21.e4 Bd5 22.ed5 Qf6 23.Qf6 Nf6 24.Bf3 Re3 25.c5 Rae8 26.cd6 cd6 27.Rc2 Ra3 28.Rc7 b6 29.Rfc1 Ra4 30.Rb7 Rb4 31.Ra7 Rf4 32.Rb7 g5 33.h3 h5 34.Rf1? (34.Rb6 g4 35.Bg4 hg4 36.Rd6 Kg7–+) 34...Re5 35.Rb6 g4 (35...Nd5?! 36.Rd6 Ne3 37.Re1-/+) 36.hg4 hg4 37.Bd1 Rf1 38.Kf1 Rd5 39.Bb3 Rd2 40.g3 Kg7 0–1. Eslon,Jaan (2440) – Ubilava,Elizbar (2530), Ibercaja op Zaragoza, 1993. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Be2 0-0 6.0-0 e5 7.d3 Nc6)

8.a3 Ne7 9.c4 a5 10.Nc3=.

8.a3 Ne7 9.c4 c6 10.Nbd2+= Be6 11.Qc2 Qc7 (11...a5 12.d4 ed4 13.Nd4+=) 12.c5 Nd7 13.Ng5 dc5 14.Ne6 fe6 15.bc5 Rf7 (15...Nd5!?+=) 16.Bg4+/- Nf5? (16...Nf8 17.Ne4 Nd5 18.h4+/-) 17.Qc4?? (better is 17.e4+–) 17...Nf6 (17...e4 18.d4 Nf6 19.Be2+/-) 18.Bh3 Rd8? (better is 18...b5!? 19.cb6 ab6+–) 19.g4+– b5 (19...e4 20.gf5 ef5+–) 20.Qe6?? (better is 20.cb6!? Qb6 21.gf5 Qb2 22.fg6 Re7 23.Be6 Kf8+–) 20...Rd3 (better is 20...Re8!? 21.Qb3 Nh4+/-) 21.gf5 Rd2 22.Be5 Qe7 (22...Qd8 23.Bd6 Nd5 24.fg6 hg6 25.Rad1 Qg5 26.Bg2+–) 23.Bd6 Qe6? (23...Qe8+–) 24.fe6 Rb7 25.Rad1 Rd1 (25...Rd5 26.Bg2 Rg5 27.f4 Rg2 28.Kg2+–) 26.Rd1 Bf8 (26...b4 27.Rb1 Bf8+–) 27.Bg2 (27.Bg2 a6 28.Bc6+–) 1–0. yulio (1915) – purplegadge (1760), gameknot.com, 2014.

8.a3 Ne7 9.Nbd2 h6 10.c4 Be6 (10...b6 11.Qc2=) 11.Qc2+= Nd7 (11...Bd7 12.h3+=) 12.d4 f5 13.de5 Ne5 (13...de5 14.Nb3+/-) 14.Nd4 (14.Ne5 de5 15.Nb3 b6+/-) 14...Bd7 (14...Qd7 15.Ne6 Qe6 16.Nb3+/-) 15.N2f3 N5c6 (15...N7c6 16.c5+=) 16.Rfd1 g5 (16...Nd4 17.Bd4 (17.Rd4?! Bd4 18.Nd4 Kh7=) 17...Bc6 18.Bg7 Kg7 19.b5 Bf3 20.Bf3+/- (20.gf3?! f4=)) 17.Nc6 Bc6 18.Bg7 Kg7 19.Nd4 Bd7 20.Qc3 Kh7 21.Qc2 g4?? (21...Kg7 22.Qb2 Rf6+/-) 22.Bg4+– Rf6 23.g3 Qg8 24.Bf3 b6 (24...Nc6 25.c5 Rc8 26.Bc6 Bc6 27.Nc6 (27.Nf5?! Qg6 28.e4 Qg4+/-) 27...bc6 28.Qa4 dc5 29.bc5+– (29.Qa7?! cb4 30.ab4 Kg6+–)) 25.Ba8 Qa8 26.Qe2 (26.Rac1 c5 27.Nb5 Qf3 28.Na7 Ng6+–) 26...c5 (26...Rg6 27.Rac1+–) 27.Qf3 (27.bc5!? bc5 28.Nb5 Bb5+–) 27...Qf3 28.Nf3 cb4 (28...Bc6 29.Nh4 Ng6 30.Ng6 Kg6 31.bc5 dc5+–) 29.ab4 Nc8 30.c5! bc5 (30...bc5 31.bc5 Combination; 30...dc5 31.Rd7 Pinning (31.Rd7 Deflection)) 31.bc5 d5 (31...Be8 32.cd6 Nd6 33.Ra7 Kg8 34.Rb1+–) 32.Ne5 Be6 (32...Bb5 33.Rd5 Re6 34.Nf3+–) 33.Rdb1 Kh8 (33...Rf8 34.Rb7 Kg8 35.Ra6+–) 34.Rb8 Kg8 (34...a5 35.Ra5 f4 36.ef4+–) 35.Ra7 Kf8 (35...Rf8 36.Rc7 f4 37.Ng6 fe3 38.Nf8 Kf8 39.fe3+–) 36.Rc7 1–0. Souza,Kim Garcia De (1745) – De Moura,S C, Campeonato Paranaense Xadrez Feminino, 2018.

8.a3 Ne8 9.Nbd2 (9.Nc3 a6=) 9...f5 (9...Nf6 10.c4=) 10.Rb1 (10.b5 Na5+=) 10...h6 (10...a6 11.c4=) 11.b5 (11.c4 Nf6+=) 11...Ne7 12.a4 (12.c4 Nf6+=) 12...Be6 (12...Nf6 13.c4+=) 13.c4+= g5 (13...Qd7 14.Bc3+=) 14.Kh1 (14.Qb3 Ng6=) 14...f4 (14...g4!? 15.Ne1 a6=) 15.ef4+= gf4 (15...Rf4 16.Qc2+=) 16.d4+/- Bf5 17.Ra1 (17.de5 de5 18.c5 A) worse is 18...Bb1 19.Bc4 Kh8 20.Qb1+/- (20.Nb1? Qd1 21.Rd1 e4 22.Bg7 Ng7–+); B) 18...e4+=) 17...e4 (better is 17...Ng6=) 18.Ng1 (better is 18.Nh4!? Nf6 19.Nf5 Nf5 20.Nb3+=) 18...Nf6-/+ 19.Ra3 (19.Nb3 Qd7-/+) 19...Ng6 (19...Qd7 20.Qb3-/+) 20.Ba1 (20.Nb3 c6-/+) 20...Qd7 21.h3 (21.Bb2-/+) 21...f3 22.Ndf3? (22.gf3 Bh3) 22...ef3–+ 23.Bf3 (23.Rf3 Rae8–+) 23...Be4 (23...d5 24.Bb2–+) 24.Re3 Bf3 (24...Rae8 25.Rfe1 d5 26.cd5 Bd5 27.Bd5 Nd5 28.Re8 Re8 29.Qg4 Qg4 30.Re8 (30.hg4?? Re1 31.Bb2 Rb1–+) 30...Kf7 31.hg4 Ke8 32.Ne2–+) 25.Qf3 (25.Nf3 Rae8 26.Rfe1–+) 25...d5 26.Qe2 Rae8 (26...Nf4 27.Qa2–+) 27.Re8 (27.Nf3 Re3 28.Qe3 Qf5–+) 27...Re8 28.Qc2 Nf4 0–1. Morgenstern,Frank (1735) – Frotscher,Thomas (2195), Blankenburg op–A, 2005.

8.b5 Nb8 9.c4 a6 10.a4 Nbd7 11.Qc2 Nc5 12.Nfd2 ab5 13.ab5 Ra1 14.Ba1 Bf5 15.Nc3 Qe7 16.Nb3 Nb3 17.Qb3 Ra8 18.Bb2 Nd7 19.Ba3 Nf6 20.Rd1 c6 21.Bf3 Qc7 22.Ne4 c5 23.Nc3 Bg4 24.Bg4 Ng4 25.Bc1 f5 26.e4 f4 27.Rd2 Bf8 28.Ra2 Ra2 29.Qa2 Nf6 30.Qa7 Kf7 31.Bd2 Be7 32.f3 Bd8 33.Qa8 h5 34.Kf1 g5 35.Be1 Kg6 36.Kf2 Kf7 37.h3 Kg6 ½–½. Taulien,Hans_Juergen (2380) – Hansen,Lars_Henrik Bech (2100), EU/WS/M/033 ICCF, 2011.

8.b5 Ne7

9.a4 a6 10.e4=.

9.a4 b6 10.Nbd2 Bb7 11.Ne1 Nd7 12.Bf3 Qc8 13.Bb7 Qb7 14.Qf3 Qf3 15.Nef3 f5 (15...a6 16.e4=) 16.e4 (16.a5 Nc5+=) 16...h6 (16...a6 17.Rfe1=) 17.a5+= Nc5 18.ab6 (18.ef5 gf5 19.Rfe1 ba5 20.Ra5 c6=) 18...ab6= 19.Ra8 (19.Ba3 Ne6=) 19...Ra8=+ 20.Ra1 Ra1 21.Ba1 Kf7 22.ef5 gf5 23.d4 (23.Kf1 Bf6=+) 23...Nd7 (23...e4 24.dc5 Ba1 25.cd6 cd6 26.Nb3=+) 24.de5= de5 25.Nc4 Ke6 26.Kf1 Bf6 27.Ke2? (27.Ne3 c5=+) 27...Nd5?? (better 27...e4 28.Bf6 ef3 (28...Nf6?! 29.Nh4=+; 28...Kf6?! 29.Nd4=) 29.Kf3 Nf6-+) 28.Nfd2 Nf4 29.Kf3 (29.Kf1 Ng6=) 29...Ng6 30.Ke2 Nc5 31.g3 h5 32.h4 (32.f3 h4=) 32...f4=+ 33.Na3 Kf5 34.Nac4 fg3 (34...e4 35.Bf6 Kf6 36.Nf1=+) 35.fg3 Kg4 36.Kf2 Ne6? (36...Kh3!?=) 37.Nf3 (37.Kg2 Nef4 38.gf4 Nh4 39.Kf2 Kf4+/-) 37...Nd4 (37...Kh3 38.Ne3 Nc5 39.Nd5+=) 38.Ne3+/- Kh3 39.Ng1 Kh2 40.Nf1 (40.Bd4 ed4 41.Nf1 Kh1+/-) 40...Kh1 41.Bd4 ed4 42.Nf3 Ne5 43.Ne5 Be5 44.g4?? (better 44.Nd2+-) 44...hg4=+ 45.h5 Bf6 (45...Bf4 46.h6 Bh6-/+) 46.h6?? (46.Kg3 Kg1 47.Nd2+/-) 46...Be5?? (better 46...Bh4 47.Ke2 Kg2-/+) 47.h7+- Bf6 48.Kg3 Kg1 49.Nd2 1-0. sobasa (2250) - taishir (2070), Rated Blitz game, lichess.org, 2014.

9.c4 a6 10.a4 Nd7 11.Nbd2 Nc5 12.Nb3 e4 13.Nfd4 ed3 14.Bd3 Nd3 15.Qd3 Nf5 16.Qd2 Nh4 17.f4 (17.e4 Re8 18.Rfe1 Qd7+=) 17...Qe7 (17...Re8 18.Rfe1=) 18.Rae1 (18.e4 Re8+= (worse is 18...Qe4 19.Rfe1 Qg2 20.Qg2 Ng2 21.Kg2+/-)) 18...ab5 19.ab5 Ra4 20.Qc2 Ra2 (20...Bg4 21.c5=) 21.Qb1 Ra4 22.Qc2 Ra2 23.Qb1 Ra4 24.Qc2 Re8 25.Nd2 Ra2 (25...Ra8 26.e4=) 26.Qb3 Ra8 27.e4 g5 28.f5 g4? (28...Be5 29.g3 Qf6 30.Qc3=) 29.g3 (29.f6!? Bf6 30.Nc6 Qf8 31.Rf6 bc6+/-) 29...Qg5 (better is 29...Nf3 30.N4f3 Bb2 31.Qb2 gf3 32.Nf3 b6+/-) 30.Qc2 (better is 30.Qd3!?+/-) 30...Ra2= 31.Qd1?? (better is 31.Qc3 Nf3 32.N2f3 gf3 33.Rf3=) 31...Bd4 32.Bd4 Qd2 (32...Rd2!? 33.gh4 Rd1 34.hg5 Rd4 35.c5–+) 33.Qd2 Rd2 34.Be3 Rc2 35.gh4 Rc4 36.Bf4 (36.Bg5 Bd7 (36...Ree4?! 37.Re4 Re4 38.Rc1-/+) 37.b6 cb6–+) 36...Ree4 (36...Bf5 37.e5–+) 37.Bh6 (37.Re4 Re4 38.f6 Rb4–+) 37...Bd7 (37...Bf5 38.Ra1 Bd7 39.Rf5–+) 38.b6 (38.Re4 Re4 39.b6 cb6–+) 38...cb6 (38...Bf5 39.Ra1 Bc8 40.Rf5–+) 39.Rd1? (39.Re4 Re4 40.Rd1 Bf5 41.Rd6 Re8-/+) 39...Rcd4 (39...Rc2 40.Rf2 Rc6 41.Rd5–+) 40.Ra1 (40.Rd4 Rd4 41.Re1 f6–+) 40...Ra4 (40...Re8 41.Rfe1 Re1 42.Re1–+) 41.Rad1 (41.Ra4 Ra4 42.Rd1 Bf5 43.Rd6 Ra8+=) 41...Re2 42.Rf2 Rf2 43.Kf2 Bf5 (43...Ra2 44.Kg1 Bf5 45.Rd6–+) 44.Rd6 Ra8 45.Rb6 (45.Rd5 Bc2 46.Rg5 Bg6 47.h5+=) 45...Be4 46.Rf6 Ra6 (46...Ra3 47.h5–+) 47.Ra6 ba6 48.Kg3 f5 49.h3 gh3 50.Kh3 Kf7 (50...a5 51.Kg3–+) 51.Kg3 (51.Bd2 Ke6–+) 51...a5 52.Bc1 Ke6 53.Kf4 Kd5 54.Kg5 Kc4 55.Kh6 a4 56.Bf4 (56.Kg5 Kb3–+) 56...a3 57.Kh7 (57.Kh5–+) 57...a2 58.Be5 f4 (58...f4 59.Kg7 f3–+) 0–1. De Souza,Kim Garcia (1740) – Cathcart,Joice (1870), Championship Paranaense Women de Xadrez, 2015.

9.c4 a6 10.e4+=.

9.c4 Bd7 10.Qc2 b6 11.Nbd2 Rc8 12.a4 c6 13.Rfd1 cb5 (13...Qc7!?=) 14.ab5+/- Bb5 15.Qb3 Bd7 16.Ra7 Rb8 17.Ra2 (better is 17.Bc3!?+/-) 17...b5= 18.Qa3 Ra8 19.Qb3 Rb8 20.Qa3 Ra8 21.Qb3 ½–½. De Kruif,K (2050) – Muller,Ant (1950), Guernsey Open, Guernsey GCI, 2009.

9.c4 Ne8 10.Qc2 (10.Nc3 Nf6+=) 10...f5 (10...a6!?=) 11.Nbd2 h6 12.c5 g5 (12...Be6 13.Nc4+/-) 13.Nc4 (13.Qc4 Kh7+/-) 13...Ng6 14.cd6 (14.h3 g4 15.hg4 fg4+/-) 14...cd6 15.d4 (15.h3 Be6+/-) 15...e4 (15...g4 16.Nfd2+/-) 16.Nfd2 d5 17.Ne5 Ne5 18.de5 Qe7 19.Qb3 (19.Qc3 f4 20.Qb3 fe3 21.Ne4 Be6+/-) 19...Qe6 20.f3 (better is 20.f4!?+/-) 20...Be5= 21.fe4 Bb2 22.Qb2 Nd6 23.ed5 (23.Qb3!? de4 24.Nc4=) 23...Qe3+= 24.Rf2 Ne4 (24...Bd7 25.Qb4 Rf6 26.Nc4 Nc4 27.Qc4+=) 25.Ne4= fe4 26.Bc4 Bd7 27.d6 Kh7 28.Qe2 (28.Raf1=) 28...Qd4 (better is 28...Qc5 29.Raf1 Rae8=) 29.Rd1+/- Qf2 (29...Rf2 30.Rd4 Re2 31.Be2+/-) 30.Qf2 Rf2 31.Kf2 Rc8 32.Bd5 Bb5 33.Bb7 Rd8 (33...Re8 34.Ke3 Kg7 35.Rd4+/-) 34.Ke3+– Rd7 35.Be4 Kg7 36.Bf5 Rd8 37.d7 (37.g4 Kf6 38.d7 Ke5+–) 37...Kf6 38.g4 Ke7 (38...Ke5 39.Rd2+–) 39.Ke4 Rb8 (39...Bc4 40.Rd2+–) 40.Ke5 Kd8?? (40...Bc4 41.Kd4 Bf7 42.Re1 Kd6 43.a3+–) 41.Rc1 Ba6 (41...Bd7 42.Rd1 Ke8 43.Rd7 Rb2 44.Ra7 Kd8+–) 42.Rc6 (42.Rc6 Bb7 43.Rh6+–) 1–0. Curic,Drazen (2210) – Armanda,Ivica (2335), 7. Split Open, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Be2 0-0 6.0-0 e5 7.d3 Nc6 8.b5 Ne7)

9.c4 h6 10.Nbd2 Be6 11.Qc2 Nd7 12.Rfd1 f5 13.Rab1 g5 Black intends f4 14.Nf1 (14.d4 e4 15.Ne1 Nf6=) 14...Ng6 Black prepares f4 15.Ng3 g4 16.Nd2 Qh4 17.Nb3 (17.d4 Nb6 18.Nb3+/-) 17...f4+= 18.ef4 Nf4 19.Bf1 Rf7 (better is 19...a6!?-/+) 20.d4= Raf8 21.d5 (21.Re1!?=) 21...Bf5-/+ 22.Nf5 Rf5 23.Rd2 (23.Kh1!? Rh5 24.h3+=) 23...Rh5–+ 24.h3 gh3 25.g3 h2 26.Kh1 Qg4 27.Be2?? (better is 27.Qd1 Qg5 28.Qe1–+) 27...Ne2 1–0. Cruz,William Ferreira Da (2250) – Souza,Kim Garcia De (1735), Aberto Do Brasil Copel Telecom Sesc, 2016.

9.Nbd2 a6 10.c4 ab5 11.cb5 Bg4 12.a4 Qd7 13.Qb3 Be6 14.Qc3 Ned5 15.Qc2 h5 16.Ng5 Bh6 17.Ne6 fe6 18.d4 e4 19.Ne4 Ne4 20.Qe4 Qf7 21.Bc4 Rae8 22.Bd5 ed5 23.Qc2 Re4 24.Rae1 Qe7 25.Bc1 h4 26.h3 Qf7 27.Re2 g5 28.Qd3 g4 29.hg4 Rg4 30.f3 Rg7 31.e4 Bc1 32.Rc1 h3 33.Rcc2 Qf4 34.Qe3 Rg2 35.Rg2 hg2 36.Qf4 Rf4 37.Kg2 de4 38.fe4 Re4 39.Rc7 Rd4 40.a5 Rd2 41.Kf3 d5 42.Ke3 Ra2 43.Rb7 Ra5 44.Kd4 Ra4 45.Kd5 Rh4 46.Kc6 Rh6 47.Kc5 Rh5 48.Kb4 Rh4 49.Ka5 Rh1 50.Ra7 Rh6 51.b6 Rh5 52.Ka6 Rh6 53.Ra8 Kf7 54.Ka7 Kf6 55.b7 Rh7 56.Rb8 1–0. Phomopsis (1615) – lagano (1645), lichess.org, 2018.

9.Nbd2 b6 10.a4 a6=.

9.Nbd2 b6 10.c4 Bb7 11.Qc2 Nd7 (11...Qd7 12.e4=) 12.d4 (12.Ne4 a6+=) 12...Nf5 13.Bd3 (13.Rfe1 a6=) 13…Nh4. Fournier,Frederic – Fekete,Albert, corr ICCF TT/6/02/2, 2002.

9.Nbd2 c6 10.bc6 bc6 11.Rb1 Ned5 12.c4 Ne7 13.Qa4 d5 14.cd5 Ned5 15.Be5 Nd7 16.Bg7 Kg7 17.Qc6 N5b6 18.Qc3 Kg8 19.Ne5 Ne5 20.Qe5 Re8 21.Qg3 Be6 22.a3 Bd5 23.Bf3 f5 24.Bd5 Qd5 25.d4 Na4 26.Nf3 Nc3 27.Rbe1 a5 28.Ne5 Nb5 29.Ra1 Nc3 30.Rae1 Qb5 31.Ng6 hg6 32.Qg6 Kh8 33.Qh6 Kg8 34.Qg6 Kf8 35.Qh6 Kg8 36.Qg6 ½–½. Phomopsis (1640) – efriyanto (1760), lichess.org, 2020.

9.Nbd2 Qd7 10.c4=.

9.Nbd2 Nd7 10.c4 f5 11.Qb3 (11.d4 e4 12.Ng5 Nc5+=) 11...Kh8 (11...Nc5 12.Qc2=) 12.Rfc1 (12.d4 e4 13.Ng5 h6+/-) 12...Nc5+= Black intends e4 13.Qc2 Ne6 14.Nb3 (14.c5 Nc5 15.Ne5 Nd5=) 14...b6 (14...Bd7 15.Bc3=) 15.a4 a5 16.d4 White plans c5 16...e4 17.Ne1 (17.Nfd2 d5+=) 17...Bb7 (17...d5=) 18.c5 (better is 18.d5!? Nc5 19.Bg7 Kg7 20.Qc3 Kg8 21.Nc2+=) 18...Nd5 (18...Bd5 19.g3+=) 19.cb6 (19.c6 Bc8 20.Nd2 Nb4-/+) 19...cb6-/+ 20.Ba3? (20.Nd2 f4 21.Qb3 fe3 22.fe3 Qh4-/+) 20...Rf6 (better is 20...f4 21.Qd2 Bh6–+) 21.g3 g5 (21...Qd7 22.Nd2-/+) 22.Ng2 (22.Nd2 Qd7=) 22...g4 23.Nd2 Bf8 (23...Ng5!?=) 24.Qb3+= Ng5 25.Bc4 Ne7 (25...Nh3 26.Kf1 Nc7 27.Rc2=) 26.d5 (26.Nf4 Rc8+/-) 26...Kg8 (26...Nh3 27.Kf1=) 27.Bb2 (27.Nf4 Nh3 28.Nh3 gh3+=) 27...Rf7 (27...Nh3!? 28.Kf1 Rh6=) 28.Nf4+/- Nh3 29.Nh3 gh3 30.Rd1 (30.f3 Bh6+=) 30...Bg7 31.Bg7 Rg7 32.Rac1 Qf8 33.f4 (33.Bf1 Bd5 34.Nc4 Qf7+/-) 33...h5= 34.Nf1 (34.Bf1 h4 35.Nc4 hg3 36.Nb6 Qf7 37.Bh3 Qg6=) 34...Ng6 (34...Rc8 35.Qb2+=) 35.Rc2 (35.Qc3 h4=) 35...Nh4 (35...Rc8 36.Be2 Rc2 37.Qc2=) 36.Be2= Ng2? (better is 36...Qf7=) 37.Bh5+/- Qf6 38.Rc6 (38.Nd2 Qd8+–) 38...Bc6+/- 39.dc6 (39.bc6 Rb8+/-) 39...Kh7 40.Qd5 Rd8 41.Qd4 Qd4 42.Rd4 (42.ed4? Nf4 43.Bf7 Rf8–+) 42...Kh6 43.Bd1 Kg6 (43...d5!?+/-) 44.Kf2+– Kf6 (44...Kf7 45.Rd5 Ke6 46.Bb3+–) 45.Nd2 Nh4 46.Nc4 (46.gh4 Rg2 47.Ke1 Rh2+=) 46...Ng2 (46...Nf3 47.Bf3 ef3 48.Nb6+–) 47.Bb3 (47.Nb6 Kg6+–) 47...Nh4 (47...Kg6+–) 48.Bd1 (worse is 48.gh4 Rg2 49.Kf1 Rh2 50.Nb6 Rb2+–) 48...Ng2 49.Be2 Ne1 (49...Ke7+–) 50.Ke1 Rg3 (50...Kg6 51.Kf2+–) 51.Bf1 (better is 51.c7 Rg1 52.Bf1+–) 51...Rdg8 (51...Rg7+–) 52.Rd6 Ke7 53.Rh6 (53.hg3 Rf8 54.Bh3 Rh8+–) 53...Rg2 54.Rh3 Ra2 (54...Rc2 55.c7 Rc8 56.Rh7 Ke6 57.Rh6 Ke7 58.Nb6 Rc1 59.Kf2 Rc2 60.Be2 R8c7 61.Nd5 Kf8 62.Nc7 Rc7 63.b6+–) 55.Nb6 Ra1 (55...Rg1 56.c7 Ra1 57.Kd2 Rgf1 58.c8Q Rad1 59.Kc2 Rc1 60.Kb2 Rc8 61.Nc8 Kd7 62.Nb6 Ke7 63.Nc4+–) 56.Kf2 Ra2 (56...Rc1 57.Rh7 Kd6 58.Rh6 Kc5 59.c7+–) 57.Be2 Ra1 (57...Rc2 58.Rh7 Kf6 59.c7+–) 58.c7 Rag1 59.Rg3 Rc1 60.Rg8 (60.Rg8 Kd6 61.c8Q Rc8 62.Nc8 Ke6 63.b6 Kd7 64.b7 Kc7 65.Ba6 Kb8 66.Na7 Kc7 67.b8Q Kd7 68.Bc4 Ke7 69.Qd8) 1–0. Solari,Pablo (1870) – Pena,Alejandro (1800), 10th Cerrado 8x8 Serie B, 2012. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.Be2 0-0 6.0-0 e5 7.d3 Nc6 8.b5 Ne7)

9.Nbd2 Re8 10.c4 c6 11.a4 cb5 12.ab5 Bd7 13.Ba3 Nc8 14.Qb3 Nb6 15.Rfd1 d5 16.cd5 Nbd5 17.Bb2 Rc8 18.Ne5 Be6 19.Qa4 a6 20.ba6 ba6 21.Nef3 a5 22.Qa5 Qa5 23.Ra5 Nb4 24.Bf6 Bf6 25.d4 Red8 26.Ne4 Bg7 27.Nc5 Bf5 28.Rb5 Nd5 29.Bc4 Nc3 30.Ra1 Nb5 31.Bb5 Rc5 32.Bf1 Rcc8 33.h3 Rb8 34.Kh2 Rb1 35.Rb1 Bb1 36.Bb5 Be4 37.Ng5 Bf5 38.Bc4 Be6 39.Be6 fe6 40.Ne6 Rd6 41.Nf4 Rf6 42.Kg3 Bf8 43.Nd5 Bd6 44.Kg4 Rf2 0–1. Phomopsis (1720) – itshardtothinkof (1745), lichess.org, 2020.

9.Nbd2 Ne8 10.c4 f5 11.Qb3 Kh8 12.a4 Nf6 13.h3 f4 14.ef4 ef4 15.Ne4 Nf5 16.Rae1 Be6 17.Nf6 Bf6 18.Bf6 Rf6 19.Qc3 Kg7 20.Ng5 Qd7 21.Ne6 Qe6 22.Bg4 Qd7 23.Re4 h5 24.Bf5 Qf5 25.Rfe1 f3 26.Re7 Kh6 27.Qd2 g5 28.h4 Rg8 29.hg5 Rg5 30.Re8 fg2 31.Rh8 Kg7 32.Rhe8 Rgg6 33.R1e7 Rf7 34.Qc3 Rgf6 35.Rf7 Kf7 36.Re2 Qh3 37.f3 Qf3 38.Rg2 Qf1 39.Kh2 Qf4 40.Kg1 h4 41.Qe1 h3 42.Rh2 Rg6 43.Kh1 Qf3 44.Rg2 Qg2 0–1. Phomopsis (1675) – NicolicheMonster (1745), lichess.org, 2019.

9.Nbd2 Ne8 10.d4+= ed4 11.Nd4 Nf6 12.Bf3 Nd7 13.c4 (13.a4 Re8=) 13...Nc5 (13...Ne5 14.a4=) 14.Qc2+= Nf5 15.Ne4 (15.N4b3 Nb3 16.Qb3 Re8+=) 15...Nh4= 16.Be2 Ne4 (16...Re8 17.Ng3=) 17.Qe4 Re8 18.Qf4 (better is 18.Qd3=) 18...Be5–+ 19.Qh6 Nf5 20.Nf5 Bb2 (20...Bf5?! 21.Be5 Re5 22.Rfd1=) 21.Rab1 Bf6–+ 22.g4 gf5 23.Bd3 Bg7 24.Qh3 Qg5 (24...Qg5 25.Kh1 Qg4–+) 0–1. Yepez,F – Quinones,O, Esteban Canal, 1968.

9.c4 Nd7

10.Nc3 a6 11.a4 (11.Nd2 ab5 12.cb5 d5 13.Nf3=) 11...ab5 12.cb5 h6 13.d4=.

10.Nc3 Nc5 11.Qc2 (11.a4 a6 12.d4 ed4 13.ed4=) 11...h6 12.a4 a6 13.Rfb1+=.

10.Nc3 Re8 11.a4 (11.Nd2 a6 12.a4 ab5 13.cb5=) 11...a6 12.Qc2 h6 13.Rfd1+=.

10.Nc3 f5 11.a4 h6 12.Nd5 g5 13.Nd2 Ng6 14.a5 Nf6 15.Bf3 Rb8 16.a6 g4 17.Nf6 Bf6 18.Bd5 Kg7 19.ab7 Bb7 20.Bb7 Rb7 21.Ra6 Ne7 22.Nb3 Qb8 23.e4 c6 24.ef5 cb5? (24...h5 25.Qa1+–) 25.c5 (better is 25.Qg4 Kh8 26.c5+–) 25...Qc8?? (better is 25...h5 26.cd6 Nf5+–) 26.cd6 Nf5 (26...Nd5 27.Qg4 Kh7 28.Rc1+–) 27.Qg4 (27.Qg4 Bg5 28.Rc1+–) 1–0. Fries Nielsen,Jens Ove (2395) – Helledie,Anders (2220), North Sea Cup, 2008. (=1.Nf3 Nf6 2.e3 d6 3.b4 g6 4.Bb2 Bg7 5.Be2 0-0 6.0-0 e5 7.d3 Nc6 8.b5 Ne7)

10.Nc3 f5 11.Qc2 h6 12.a4 a6 13.d4+=.

10.Nc3 f5 11.Qd2 h6 (11...Nb6 12.a4 a5 13.Qc2+=) 12.a4 (12.Qc2 g5 13.Nd2+=) 12...f4 (12...Nc5 13.Qc2=) 13.d4 g5 14.de5 Ne5 15.ef4 Rf4 16.Nd5 Nc4?? (better is 16...Nd5 17.Qd5 Nf7 18.Bg7 Kg7+=) 17.Bc4+– Rc4 18.Bg7 Kg7 19.Qb2 Kh7 20.Qf6 Re4 21.Qf7 Kh8 22.Nf6 (better is 22.Rae1!? Qg8 23.Qg8 Kg8 24.Ne7 Re7 25.Re7 c6+–) 22...Bf5 23.Ne4 (23.Ne4 Be4 24.Rae1+–) 1–0. Rudol,Matylda – Szurek,Dagmara (1655), Mistrzostwa Miedzywojewodzkie Juniorow Poland, 2011.

10.Nc3 f5 11.d4 h6 12.Qb3 e4 13.c5+=.

9.Nbd2 Bd7

10.c4 a6

11.a4 ab5 12.cb5 Ned5 13.Qb3 Be6 14.Ng5 Qe7 15.Ne6 Qe6 16.h3 Rfe8 17.Rfc1 Rac8 18.e4 Nf4 19.Qe6 Ne2 20.Kf1 Ng3 21.fg3 Re6 22.Rc2 c5 23.bc6 bc6 24.a5 c5 25.Nc4 Nh5 26.g4 Nf4 27.Nb6 Rb8 28.Rd2 Re7 29.Bc1 Ra7 30.g3 Ne6 31.Nd5 Nd4 32.Ra3 Rb1 33.Rd1 Nc6 34.Ke2 Ra5 35.Ra5 Na5 36.Kd2 Nb3 37.Kc2 Nc1 38.Rc1 Rb8 39.Kc3 h5 40.gh5 gh5 41.Ra1 Kh7 42.Ra7 Rd8 43.Rf7 Kg6 44.Ra7 Bh6 45.Ne7 Kf6 46.Nf5 Bc1 47.Ra6 Ke6 48.Ng7 Kf7 49.Nh5 Rb8 50.Rd6 Bb2 51.Kc2 Bd4 52.g4 Rb2 53.Kd1 Rb1 54.Kc2 Rb2 55.Kc1 Rh2 56.Rf6 Ke7 57.Rf3 Rh1 58.Kd2 Rh2 59.Kc1 Rh1 60.Kc2 Rh2 61.Kb3 Rb2 62.Kc4 Rb4 63.Kd5 Rb6 64.Ng3 Rd6 65.Kc4 Rb6 66.Nf5 Ke6 67.Nd4 ed4 68.Rf5 Rb4 69.Kc5 Rb1 70.Rd5 Rc1 71.Kb6 1–0. Phomopsis (1720) – blazer12pl (1760), lichess.org, 2020.

11.a4 d5 12.Ne5 dc4 13.Nd7 Qd7 14.dc4 Rfd8 15.Nf3 Qd1 16.Rfd1 ab5 17.Rd8 Rd8 18.cb5 h6 19.Bc4 Ned5 20.Rd1 c6 21.h3 Ra8 22.bc6 bc6 23.Bb3 Ra7 24.Bd4 Rb7 25.Bd5 Nd5 26.Rc1 Rc7 27.Bg7 Kg7 28.a5 Nb4 29.Ra1 Na6 30.Rc1 c5 31.Rc4 Nb4 32.Ne5 f6 33.Nf3 Kf7 34.Kf1 Ke6 35.Nd2 Kd6 36.Ne4 Ke6 37.Rc5 Rc5 38.Nc5 Kd6 39.Ne4 Ke6 40.f3 Na6 41.Nc3 Kd6 42.e4 Kc6 43.Nd5 f5 44.Ke2 Kb5 45.ef5 gf5 46.Ke3 Ka5 47.Ne7 Nc5 48.Nf5 Ne6 49.Nh6 Kb5 50.Ke4 1–0. Phomopsis (1650) – SashaSavvi (1665), lichess.org, 2018.

7.d3 Nbd7

8.c4 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Qe7 12.Nc3 Nb6 13.Nd2 d5 14.c5 Nbd7 15.Re1 h6 16.Nb5 Nb8 17.Nf3 Nc6 18.Qb3 e4 19.de4 de4 (worse is 19...Ne4 20.Bg7 (20.Qd5?! Nb4 21.Qc4 Na6=) 20...Kg7 21.Qd5+/-) 20.Nfd4 Ne5 21.h3 Rd8 22.Rd1 Ne8 23.Nc3 Qh4 24.Nd5 Qg5 25.Nf4 Qe7 26.Nd5 Qf8 (better is 26...Qg5!? 27.Kf1 Nc6 28.Nc6 bc6 29.Bg7 Kg7 30.Qc3 Kg8+=) 27.Bb2 Kh7 28.Bc3 f5 ½–½. Versic – Wall,Bill, chess.com, 2009.

8.c4 b6 9.Nc3 Bb7 10.Qc2 Re8 11.a4 (11.Ng5 Qe7=) 11...a5 12.ba5 (12.b5 e4 13.de4 Ne4=) 12...Ra5=+ 13.Nb5 Nc5 14.Bc3 Ra8 15.a5 c6 16.Nd6 (16.d4!? ed4 A) 17.ed4?? Nce4–+ (17...cb5?! 18.dc5 b4 19.Bb4 dc5 20.Bc3-/+); B) 17.Nbd4 ba5 18.Nb3=+) 16...Qd6–+ 17.ab6 Nfd7 18.Rfb1 (18.Ra8 Ra8 19.d4 ed4 20.ed4 Ne6–+) 18...Ra1 (18...e4 19.Ne1 Ra1 20.Ra1 ed3 21.Nd3 Nd3 22.Bg7 Kg7 23.Qd3 Qd3 24.Bd3–+) 19.Ba1 e4 20.de4 Ne4 21.Bg7 Kg7 22.Nd4? (22.Rd1 Qe7 23.Nd2–+) 22...c5–+ 23.Nb5 Qf6 (23...Qb6 24.f3 Nef6 25.Qd3–+) 24.Qb2 (24.f3 Nd6 25.Rd1 Re6–+) 24...Ne5 (better 24...Qb2 25.Rb2 Ra8–+) 25.Nc7?? (25.f4 Re7 26.g3–+ (26.fe5?? Qf2 27.Kh1 Ng3 28.hg3 Qg2)) 25...Qf2 26.Kh1 Ng3! (26...Ng3 27.hg3 Qg2) 0–1. Darkseid (1855) – Back_Rank_Amateur (2375), ChessWorld.net, 2019. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nbd7)

8.c4 Qe7 9.Nbd2 Re8 10.Qc2 c5 11.b5 b6 12.a4 a5 13.ba6 (13.Rfd1 d5=) 13...Ra6= 14.Nb3 White plans a5 14...Bb7 Black intends e4 15.a5 e4 16.de4 Ne4 (16...Be4 17.Qd2=) 17.Bg7 Kg7 18.ab6 Rb6 19.Nbd2 Qf6 20.Ne4 Be4 21.Qd1 Reb8 22.Nd2 Bc6 23.Bf3 Bf3 24.Nf3 Ne5 25.Ne5 Qe5 26.h3 Rb4 27.Ra6 R8b6 28.Rb6 Rb6 29.Qd3 Ra6 ½-½. Erenberg,Ariel (2460) - Bronstein,Or (2380), 29th EY Open U18, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nbd7)

8.c4 Ne8 9.Nfd2 (9.Nc3 b6+=) 9...Qe7 (9...a5 10.a3=) 10.Nc3+= f5 (10...Nef6 11.Bf3+=) 11.f4 (11.Nd5!? Qd8 12.Bf3+=) 11...Nef6= 12.e4 (12.Rf2 a5 13.ba5 Ra5=) 12...ef4+= 13.ef5 g5 (13...Ne5 14.Nde4 Bf5 15.Nf6 Qf6 16.Rf4-/+) 14.Nf3 (14.Nde4 a5 15.a3 h6+=) 14...h6 15.d4 Re8 (better is 15...a5 16.c5 Qe3 17.Kh1 ab4+=) 16.Re1?? (better is 16.c5 Kf8 17.Bc4+–) 16...Qe3–+ 17.Kh1 Ng4 18.Rf1 Nf2 19.Rf2 Qf2 20.Rc1 (20.c5 d5!–+) 20...g4 21.Qe1 (21.Ne1 Nf6 (21...Bd4 22.Nd3 Qh4 23.Nf4-/+) 22.Nd3 Qe3–+) 21...Qe1 22.Ne1 Bd4 23.Bg4 Nf6 (23...Ne5 24.Bh5 Bf5 25.Ba1–+) 24.Bf3?! (24.Bh3–+) 24...Bf5 25.Bb7 Rab8 26.Bc6 Rb4 27.Nf3 Rb2 28.Nd4 Bd7 (28...Re5 29.Nf5 Rc2 30.Nh6 Kg7 31.Nf5 Kh7 32.Ra1 Rc3 33.Nh4–+) 29.Bd7 (29.Nd5 Nd5 30.Bd7 Re4 31.Be6 Kh8 32.Bd5 Rd4–+) 29...Nd7 30.Ndb5 (30.h4 Nb6 31.a4 Re5–+ (worse is 31...Nc4 32.Nd5 Re5 33.Nc6–+)) 30...Re3 (30...Rc2 31.Rg1 Re5 32.Nd5 Rc4 33.Nbc7–+) 31.h3 (31.Rf1 Rd3 32.Nd5 Rb5 33.Ne7 Kf7 34.cb5 Ke7–+) 31...Rg3 32.Rg1 Kf7 (32...c6!? 33.Nd1 Rd2 34.Nbc3–+) 33.Ne4 Re3 34.Nec3 Rc2 (better is 34...Rd3 35.Rf1 f3 36.Rf3 Rf3 37.gf3–+) 35.Nd5 Re4 (35...Nb6 36.Ne3 fe3 37.Rf1 Kg8 38.Nc7 Nc4 39.Nd5 Ra2 40.Kh2–+) 36.Ndc7 Re3?? (better is 36...Rd2 37.Nd5 Ke6–+) 37.Nd6-/+ Kg6 (37...Kg8!?-/+) 38.Nd5+= Ra2 (38...Nc5 39.Nf4 Kh7 40.Rb1-/+) 39.Nf4 (39.Ne3 fe3 40.Re1 e2+=) 39...Kg5 (39...Kh7!?-/+) 40.Rf1= Nb6 (40...Re7!?=) 41.Nf7 (41.c5 Nd7 42.Nf7 Kf5 43.Nd5 Ke4 44.c6+–) 41...Kf5?? (better is 41...Kh4+=) 42.Nd5+– Ke4 43.Ne3 (better is 43.Rf4 Kd3 44.Nb4 Kc3 45.Na2 Kb3 46.c5+–) 43...Ke3+/- 44.c5 Nd5 45.Nh6 Rc2 (45...a5 46.c6 a4 47.Kh2+/-) 46.Ra1 Rc5 (46...Kd4 47.Ra7 Rc5 48.h4+–) 47.Ra7 Nf4 (47...Nf6 48.Kh2+–) 48.Ra2 (48.Ng4 Kd4+–) 48...Ne2 (48...Ne6 49.Kh2+–) 49.Ng4 Kd3 50.Kh2 Rc8 (50...Nc3 51.Ra6+–) 51.g3 (51.h4 Rc5+–) 51...Rc1 (51...Nc3 52.Ra3 Kc4 53.h4+–) 52.Ra3 (52.h4 Rc5+–) 52...Nc3 (better is 52...Kd4+–) 53.h4 Kd4 54.Ra8 (54.h5 Ne4+–) 54...Ne2 (54...Rc2 55.Kh3 Ne2 56.Rd8 Ke4 57.Re8 Kd4 58.Nf2+–) 55.Rd8 Ke4 56.Re8 Kd3 (56...Kf3 57.Re3 Kg4 58.Re2+–) 57.Re3 (57.h5!? Rc7 58.h6 Nd4 59.Ne5 Kd2+–) 57...Kd2 58.Kg2 (better is 58.h5 Rc7 59.Re4+–) 58...Nc3 (58...Rc4 59.Ne5 Rc8+–) 59.Re8 (59.h5 Nd5 60.Re5 Nb4+–) 59...Kd3 (59...Rc2 60.h5 Kc1 61.Kh3+–) 60.Rf8 (60.h5 Nd5+–) 60...Ra1 (60...Rc2 61.Nf2 Kd4 62.h5+–) 61.h5 Ra7 (61...Ra2 62.Kh3 Ra1 63.h6+–) 62.Kh3 (better is 62.Nf6 Ra6+–) 62...Kd4 (62...Ne2+–) 63.Nf6 Ra1 (63...Ke5 64.h6 Nd5 65.Nd5 Kd5 66.g4+–) 64.Kg4 Rh1 65.Kg5 Rh3 (65...Ne2+–) 66.g4 Na4 (66...Nb5 67.Kg6 Nc7+–) 67.h6 Nc5 68.Re8 1–0. Dos Anjos,Diovana Ferreira (1650) – Tamarozi,Isabelle (2010), Brasileiro Infanto–Juvenil, 2017.

8.Nbd2 b6 9.c4 Bb7 10.Qc2 Re8 11.a4 a5 12.b5 e4 13.de4 Ne4 14.Bg7 Kg7 15.Ne4 Be4 16.Qc3 Qf6 17.Qf6 Kf6 18.Ra2 h6 19.Nd2 Bb7 20.Bf3 Bf3 21.Nf3 Re4 22.Nd2 Re7 23.Nb1 Ke5 24.Nc3 Nc5 25.Nd5 Rd7 26.Rd1= ½–½. Melderis,U (1945) – Wachinger,Nikolas (2240), European Blitz, 2017.

8.Nbd2 Nd5 9.c3 c6 10.Qb3 Kh8 11.c4 Nc7 12.d4 Qe7 13.c5 ed4 14.cd6 (14.Bd4?! dc5 15.Bg7 Kg7 16.bc5 Nc5 17.Qc3 Kg8+=) 14...Qd6 15.Nd4 Nd5 16.a3 N7f6 17.Bf3 Bg4 18.e4 Bf3? (better is 18...Nb6+=) 19.N4f3+– (19.Qf3?! Nb6 20.Rad1 Nfd7+=) 1–0. Fries Nielsen,Niels Jorgen (2315) – Defize,Alain (2200), Berlin tt Berlin West, 1980.

8.Nbd2 Qe7 9.c4 c6 10.Rc1 b6 11.Qb3 Bb7 12.a4 White plans b5 12...Rac8 13.b5 1-0. Nikolova,Angelika - Kazakov,Danail, 32nd Teteven Open (8), 2018.

8.Nbd2 Qe7 9.c4 h6 10.Rc1 Ne8 11.Qb3 f5? (better is 11...Nef6!?=) 12.c5+/- Kh8 13.e4 f4 14.cd6 cd6 15.d4 g5 16.de5 de5 17.b5 g4 18.Ba3 Qf6 19.Ne1 Qg6 20.Bc4 (better is 20.Bf8!? Nf8 21.Qd5+–) 20...Nd6+/- 21.Bd5 Nb6 22.Rc7 Nd5 23.Qd5 Rd8 24.Rg7 Kg7 25.Qe5 Qf6 26.Qf6 Kf6 27.Bd6 Rd6 28.e5 Ke5 29.Nc4 Kd5 30.Nd6 Kd6 31.f3 g3 32.Nd3 Be6 33.Rd1 Kc7 34.Nf4 gh2 35.Kh2 Ba2 36.Nd5 Bd5 37.Rd5 a5 38.ba6 ba6 39.Rh5 a5 40.Rh6 a4 41.Kg3 a3 42.Rh1 a2 43.Ra1 Kd6 44.Kf4 Kd5 45.g4 Ke6 46.Kg5 Kf7 47.f4 Ra5 ½–½. Storchak,Vitalij – Lomakin,Dmitriy, Novokuznetsk Rating op, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nbd7)

8.Nbd2 Re8 9.c4 Nf8 10.Qb3 h6 (10...Ne6 11.c5=) 11.Rfc1 c6 (11...Be6 12.a4=) 12.a4 (12.c5!?+/-) 12...Be6= 13.b5 Qd7 (13...N8d7 14.Qa3=) 14.Qc2 g5 (14...Rac8 15.h3+=) 15.d4 (15.bc6!? bc6 16.c5+/-) 15...e4= 16.Ne1 (16.Ne4 Ne4 17.Bd3 Nf6–+) 16...Bf5 17.c5 d5 18.bc6 (18.a5 a6 19.bc6 bc6=) 18...bc6 (worse is 18...Qc6 19.Bb5 Qc7 20.Be8 Re8 21.c6+/-) 19.Rab1 Ng6 20.a5 Bg4 21.Bf1 Qc7 22.Qa4 Bd7 23.a6 Ng4 24.g3 Nh4 (better is 24...h5=) 25.Bc3+/- Nf5 26.Ba5 Qc8 27.Rb7 Re7 28.Rc7 Qe8 29.Ng2 (29.Rb1 h5+/-) 29...Nf6 (29...Be6 30.Qc6 Rc7 31.Qe8 (31.Qc7?! Nd4 32.ed4 Bd4+=) 31...Re8 32.Bc7 Nd4 33.h3+/-) 30.Rb1+/- Rb8? (better is 30...Bc8+/-) 31.Ra7+– Rb1 32.Nb1 Bc8 (32...Kh7+–) 33.Re7 Ne7 34.a7 (better is 34.Qb4 Ba6 35.Ba6 Nf5+–) 34...Bb7 35.Bb6 Nd7 36.Ba6 Qa8 (36...Ba6 37.Qa6 Qa8+–) 37.Bb7 (37.Bb7 Qb7 38.a8Q Qa8 39.Qa8 Nf8 40.Bd8+–) 1–0. Solari,Pablo (1870) – Acerenza,Antonio (1845), 10th Cerrado 8x8 Serie B, 2012. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 e5 7.d3 Nbd7)

8.Nbd2 Ne8 9.c4 h5 10.a4 f6 11.Qb3 Kh7 12.Rac1 f5 13.c5 Qg5 14.Ng5 1–0. Phomopsis (1725) – tjm8 (1700), lichess.org, 2020.

8.Nbd2 h6 9.c4 Nh7 (9...a5 10.a3 Nb6=) 10.a4 (better is 10.Qc2+=) 10...e4-/+ 11.Bg7 ef3 12.Bf8 fe2 13.Qe2 Ndf8 14.d4 a5 15.b5 Ne6 16.Rfd1 (16.Qd3 f5+=) 16...Qe7 17.Rac1? (better is 17.Nb3-/+) 17...Nd4!–+ 18.Qd3 (18.ed4 Qe2 Pinning (18...Qe2 Deflection; 18...Qe2 Clearance)) 18...Ne6 19.Nb3 Nf6 (19...b6 20.Qd5 Rb8 21.Qd2–+) 20.f3 (20.c5 d5–+ (20...Nc5?! 21.Nc5 Bf5 22.e4=)) 20...b6 21.Nd4 Bb7 22.Ne6 Qe6 (22...fe6?! 23.Qg6 Qg7 24.Qg7 Kg7 25.e4–+) 23.e4 Qe5 (23...Nd7 24.Ra1–+) 24.Qe3 Kg7 25.Rd2 (25.Qd4 Qd4 26.Rd4 Nd7–+) 25...Re8 26.g3 (26.Qd4 Qd4 27.Rd4 Nd7–+) 26...Nd7 27.Qd4 (27.Qc3 Nc5 28.Ra2 Bc8–+) 27...Qd4 28.Rd4 Nc5 29.Re1 (29.Rc2 Na4 30.g4 f5 31.gf5 gf5 32.Rg2 Kf6 33.ef5 Bf3 34.Rg6 Kf5 35.Rh6 Nc5–+) 29...Na4 30.f4 (30.Kf2 Nc5–+) 30...f6 31.e5 fe5 32.fe5 Nc5 33.ed6 (33.e6–+) 33...Re1 34.Kf2 Re4 (34...Re4 35.Re4 Ne4 36.Ke3 Nd6–+) 0–1. Valles Calvo,Luciano (2010) – Madero,Sergio (2120), Primera Autonomica Norte, 2009.

8.Re1 Ne8 9.Bf1 f5 10.e4 f4 11.c3 h6 12.d4 g5 13.de5 de5 14.c4 Qe7 15.c5 g4 16.Bc4 Kh8 17.Nfd2 g3 18.fg3 fg3 19.h3 Rf2 20.Nc3 Qh4 21.Nf3 Qe7 22.Nd5 Qf8 23.Bc1 c6 24.Ne3 Nef6 25.Ng4 Ng4 26.hg4 Nf6 27.Ne5 Bg4 28.Ng6 1–0. Chess4Win (1735) – Almagistri (1725), lichess.org, 2020.

7.d3 Be6

8.c4 a5 9.b5=.

8.c4 h6 9.Nc3 (9.d4 ed4 10.Nd4 a5=) 9...Nbd7 (9...a5 10.b5=) 10.a4 (10.a3 a5=) 10...a5 (10...Qe7 11.a5=) 11.b5 c6 12.Ba3 (12.d4 Rc8=) 12...Ne8 (12...c5 13.Qc2=) 13.d4 (better is 13.Rb1+=) 13...d5? (better is 13...Nb6 14.c5 Nc4=) 14.Bf8+– Bf8 (14...Kf8 15.cd5 cd5 16.de5 Ne5 17.Nd4+–) 15.cd5 cd5 16.de5 (better is 16.Ne5 Ne5 17.de5+–) 16...Bb4? (16...Bg7 17.Qd2+–) 17.Na2 (better is 17.Nd5!? Nc5 18.Nb4 Qd1 19.Rfd1 ab4+–) 17...Bc5 18.Nc3 Bb4 19.Nd5 Bd5 20.Qd5 b6 (20...Nc5 21.Qc4 Qe7+–) 21.Rfd1 (21.Bc4 Ne5 22.Ne5 Qd5 23.Bd5 Ra7+–) 21...Nc7 (21...Ra7 22.e6 Nef6 23.Qd3+– (23.ed7?! Nd5 24.Rd5 Rd7 25.Rd7 Qd7=; 23.ef7 Kg7 24.Qd4 Bc5+–)) 22.Qd7 Ne6 (22...Qd7 23.Rd7 Ne6 24.Bc4+–) 23.Qb7 (23.Qc6!? Qf8+–) 23...Qb8 24.Qc6 Nd8 (24...Ra7 25.Qe4+–) 25.Qd7 (better is 25.Qe8 Kg7 26.Rd7 Qc8+–) 25...Ne6 26.Rd5 (26.Bc4 Ra7 27.Qd3 Qe8+–) 26...Kg7 (26...Ra7 27.Qc6 Rc7 28.Nd4 Rc6 29.Nc6+–) 27.Rad1 (27.Qc6 Be7+–) 27...Nc5 (27...Ra7 28.Qc6 Rc7+–) 28.Qg4 (better is 28.Qe7!? Qh8 29.Rd8 Rd8 30.Rd8 Ne4+–) 28...Qf8 29.Nh4 g5 (29...Kh7 30.Bd3 Nd3 31.R5d3+–) 30.Nf5 Kh7 31.Qh5 Ne6 32.Rd7 Ng7 33.Qh6 (33.Rf7 Qf7 34.Qf7 Ra7 35.Qa7 Be7 36.Qe7 Kg6 37.Qf6 Kh7 38.Qg7) 33...Kg8 34.Qg5 (34.Qg5 Bd2 35.e6 Rb8 36.ef7 Qf7 37.Bc4 Bc3 38.Bf7 Kh7 39.Qh6) 1–0. Zaichenko,Andrey (1800) – Manuel,William, FICGS, 2007.

8.Nbd2 a5 9.b5=.

8.Nbd2 a6 9.c4 Nbd7 10.a4 c5 11.b5 ab5 12.cb5 d5 13.Ng5 d4 14.Ne6 fe6 15.ed4 ed4 16.Nc4 Qc7 17.Bf3 Rab8 18.Qe2 Rfe8 19.Rfe1 Kh8 20.Bg4 Nf8 21.Qe5 Qe5 22.Ne5 Ng4 23.Ng4 h5 24.Ne5 Rbd8 25.Bc1 Nd7 26.Ng6 Kh7 27.Nf4 Bh6 28.Ne6 Nf8 29.Nf8 Kg7 30.Bh6 Kh6 31.Re8 Re8 32.Nd7 Rc8 33.Re1 Rc7 34.Re6 1–0. Phomopsis (1620) – Mehmet0101 (1625), lichess.org, 2018.

8.Nbd2 Qd7 9.c4 Nc6 10.b5 Nd8 11.a4 a6 12.Ng5 h6 13.Ne6 Qe6 14.Bf3 c6 15.bc6 bc6 16.Rb1 Rb8 17.Ba3 Rb1 18.Qb1 c5 19.Qb6 h5 20.Qa6 g5 21.Rb1 g4 22.Be4 Ne4 23.Ne4 Qg6 24.Qd6 Ne6 25.Bc5 Nc5 26.Qc5 h4 27.Rb6 f6 28.g3 h3 29.a5 Qf5 30.Qd5 Kh7 31.Nd2 Qc8 32.Rc6 Qb7 33.Rb6 Qc7 34.Ne4 Qc8 35.Nd6 Qd7 36.Qb5 Qe6 37.Ne4 Qf5 38.Qc6 Qf3 39.Nf6 Bf6 40.Qf3 gf3 41.c5 Rc8 42.c6 Bd8 43.Rb7 Kh6 44.Rb1 Rc6 45.d4 ed4 46.ed4 Rd6 47.Rd1 Ba5 48.d5 Bc3 49.Kf1 1–0. Phomopsis – Nejasit, lichess.org, 2019.

8.Nbd2 Nbd7 9.c4 a5 10.b5=.

8.Nbd2 Nbd7 9.c4 b6 10.Qc2 c5 11.bc5 Nc5 12.Rfd1 Bd7 13.Nb3 Ba4 14.Rab1 Ne6 15.Nfd2 e4 16.de4 Bb3 17.ab3 Nc5 18.Bf6 Bf6 19.Bf3 Be5 20.g3 f5 21.ef5 Rf5 22.Bd5 Kg7 23.Ba8 Qa8 24.Nf1 Rh5 25.Rd5 Qc8 26.f4 Bf6 27.Rh5 gh5 28.Rd1 Qe6 29.Qd2 Ne4 30.Qd5 Qd5 31.Rd5 Nc3 32.Rh5 Ne2 33.Kf2 Nc3 34.Nd2 Kg6 35.g4 a5 36.f5 Kg7 37.g5 Be5 38.h4 b5 39.cb5 Nb5 40.Nc4 Bc3 41.g6 hg6 42.fg6 Kg6 43.Rb5 1–0. Phomopsis (1630) – gayus099 (1615), lichess.org, 2019.

8.Nbd2 Nbd7 9.c4 Qe7 10.Ng5 Bf5 (10...a5 11.Ne6 fe6 12.b5+=) 11.e4+= Be6 12.Ne6 Qe6 (12...fe6 13.Nf3+=) 13.f4 (13.Nb3 Rfb8+=) 13...Bh6 14.fe5 (14.f5 Qe7+=) 14...Ne5 (14...de5!? 15.Kh1 Rfd8=) 15.Nf3+= Nfg4 16.Bc1?? (16.Ne5 Ne5 17.Qb3 Rae8+=) 16...Bc1 (better is 16...Be3 17.Be3 Ne3-/+) 17.Qc1+= (worse is 17.Rc1 Nf3 18.Bf3 Ne3-/+) 17...Nf3 18.Bf3 Ne5 19.Qe3 f5 20.ef5+/- Rf5?? 21.Bd5+– Rf1 22.Rf1 Qd5 23.cd5 Re8 24.Qa7 Nd3 25.Qb7 Kg7 26.Qc7 Kh6 27.Qd6 Kg5 28.Qg3 Kh6 29.Qd3 Kg7 30.Qd4 Kh6 31.h4 g5 32.Qf6 Kh5 33.Qg5# 1–0. Skjoeldan,Benjamin – Reppen,Sigmund, Nordic–ch U20, 2000.

7.d3 Qe7

8.a3 a5 9.Nbd2 Nbd7 10.c4 Ne8 (10...b6 11.Nb3=) 11.Qb3 (11.Bc3 b6=) 11...Kh8 (11...b6 12.Ne4=) 12.Rfe1 (12.Qc2 Ndf6=) 12...f5 (12...b6 13.h3=) 13.Bf1 (13.Bc3 e4 14.Nd4 c5=) 13...ab4 (13...b6!?=) 14.ab4+= Ra1 15.Ra1 f4 ½–½. Svancara,Petr (2155) – Juricek,Stanislav (2240), MOR–chT2M, 2002. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 e5)

8.a3 Nc6 9.Nbd2 (9.Nc3 a6 10.e4 Nd4 11.Nd5 Nd5 12.ed5 Bd7 13.Re1 Rfe8 14.Nd4 ed4) 9...a6 (9...Bf5 10.b5 Na5 11.Bc3 b6 12.e4 Bd7 13.Rb1 a6 14.Ba5 ba5) 10.c4 Bf5 11.Qc2 e4 12.Nd4 Nd4 13.Bd4 Rfe8 14.h3 a5.

8.a3 Bg4 9.Ng5 Nfd7 10.Ne4 Be2 11.Qe2=.

8.Nc3 a6 A) 9.a3 Nc6 (9...d5 10.d4 e4 11.Ne5 Be6 12.f3 ef3 13.Bf3 Nc6 14.Nc6 bc6; 9...Rd8 10.e4 Nc6 11.Nd5 Nd5 12.ed5 Nd4 13.Nd4 ed4 14.Re1 Qg5) 10.Qd2 d5 11.e4 Be6 12.ed5 Nd5 13.Nd5 Bd5 14.Rfe1 Rfe8; B) 9.Qd2 Nc6 10.a3 d5 11.Rfe1 Rd8 12.h3 Bf5 13.Na4 b6 14.Qc3 Qd7; C) 9.h3 Nc6 (9...d5 10.e4 Qb4 11.Qc1 de4 12.Ne4 Ne4 13.de4 Qe4 14.Bd3 Qd5) 10.a3 d5 11.Na4 Rd8 12.d4 Ne4 13.de5 Ne5 14.Ne5 Be5; D) 9.Re1 Nc6 (9...d5 10.a3 Nc6 11.Qd2 Rd8 12.h3 Bh6 13.d4 e4 14.Nh2 Bg7) 10.a3 Rd8 11.Qd2 d5 12.Rab1 Be6 13.Ng5 Bf5 14.f4 e4; E) 9.a4 Nc6 10.b5 Nb4 11.Qd2 Bd7 12.Nd1 c5 13.bc6 Nc6 14.e4 Be6.

8.c4 Bg4 (8...a5 9.b5 Rd8 10.Nc3 Nbd7 11.d4 Nb6 12.Ba3 ed4 13.ed4 Bg4 14.Re1 Re8; 8...Nc6 9.Qb3 e4 (9...Bf5 10.Nc3 a5 11.b5 Nd8 12.Nd5 Qd7 13.Nh4 Bg4 14.Bg4 Qg4) 10.de4 Ne4 11.Bg7 Kg7 12.Nc3 Nc3 13.Qc3 Qf6 14.Qf6 Kf6; 8...Bf5 9.Nc3 a5 10.b5 Nbd7 11.Na4 Nh5 12.Nd2 Nhf6 13.Nf3 Nh5 14.Nd2 Nhf6) 9.Nc3 (9.h3 Bd7 10.Nc3 Nc6 11.Qb3 a6 12.Rac1 Rfe8 13.Nd2 Qd8 14.Bf3 Rb8) 9…c6 (9...a5 10.b5 Nbd7 11.h3 Bf5 12.e4 Be6 13.Nd5 Qd8 14.Ng5 Nd5) ½–½. Gibbons,R (2095) – Stuart,P (2215), Open Auckland NZL, 2003.

8.Qd2 Na6 9.a3 (9.e4 d5 10.a3 de4 11.de4 Ne4 12.Qe3 Nd6 13.Rd1 Bf5 14.Rd2 Ne4) 9...c5 10.c4 Bd7 11.b5 Nc7 12.Nc3 Rfe8 13.Rfe1 d5 14.d4 cd4.

7.d3 Ne8

8.Qc1 f5 9.Nbd2 g5 10.c4 g4 11.Ne1 Qh4 12.f4 Qe7 (12...Rf6 13.Rf2 Rh6=) 13.c5 (better 13.Nc2!?+=) 13...ef4=+ 14.Bg7 (14.e4!?=+) 14...Qe3-/+ (14...Ng7?! 15.Qc4 Be6 16.cd6=) 15.Kh1 Ng7 16.Qd1? (better 16.Bd1!?-/+) 16…Re8-+ (16...Re8 17.Bg4 fg4-+) 0-1. Melderis,U (1895) - Munoz Pantoja,M (2510), Tal Memorial Blitz, 2019.

8.Nc3 f5 9.Qd2 Nc6 (9...Be6 10.a4=) 10.b5 (10.a3 Nf6=) 10...Ne7= 11.a4 h6 12.e4 f4 (better 12...Nf6!?=) 13.d4+/- ed4 14.Nd4 g5 (14...Kh7 15.Rfe1+/-) 15.Bc4 Kh8 16.Rfe1 Ng6 17.Bd5 (17.a5 Ne5 18.Bd5 a6 19.ba6 Ra6=) 17...Ne5+= 18.a5 (18.f3 Nf6 19.Bb3 g4+=) 18...Rb8 19.f3 Nf6 20.Ba2 Nh5 (20...a6 21.Rab1+=) 21.Ne6 Be6 22.Be6 Qf6 23.Bb3 c6 (23...g4 24.b6+=) 24.Red1 (24.Qf2 g4+=) 24...Rbd8 (better 24...g4!? 25.Qd6 gf3 26.Qf6 Bf6=) 25.a6+- g4 26.ab7 gf3 27.bc6 (27.Ra7 fg2 28.Qg2 f3-+) 27...fg2 28.Nd5 (28.Kg2 f3 29.Kf1 f2+=) 28...Nf3+/- 29.Kg2 Qb2?? (29...Nd2 30.Nf6 f3 31.Kh3 Nf6 32.Rd2 Ne4 33.Bg7 Kg7+-) 30.Kf3+- Rde8 31.c7 Qe5 32.Ra4 (32.Qb4 Qe6 33.b8Q A) 33...Rb8?? 34.cb8Q (34.cb8N?! Qh3 35.Ke2 f3 36.Kd2 Qh2 37.Kc1 Ba1+-) 34...Qh3 35.Ke2 Qh2 36.Kd3 Qg3 37.Kd2 Rb8 38.Qb8 Kh7 39.Ra7+-; B) 33...Qh3 34.Ke2 B1) 34...Rb8 35.cb8Q (35.cb8N?! f3 36.Kd2 Qh2 37.Kc1 Ba1+-) 35...Qh2 36.Kd3 Qg3 37.Kd2 Rb8 38.Qb8 Kh7 39.Ra7+-; B2) 34...Qh2 35.Kd3 Qg3 (35...Rb8 36.cb8Q Qg3 37.Kd2 Rb8 38.Qb8 Kh7 39.Ra7+-) 36.Kd2 Qg2 (36...Rb8 37.cb8Q a5 38.Qf8 Bf8 39.Qb8+-) 37.Kc1 Ba1+- (37...Rb8 38.cb8Q Rb8 39.Qb8 Kh7 40.Ra7+-)) 32...Ng3 33.hg3 fg3 (33...Qh5 34.g4 Qh3 35.Ke2 Qg4 36.Kd3 Qf3 37.Kc4+-) 34.Kg4 Qe6 (34...g2 35.c8Q (worse 35.Qg2 Qg5 36.Kh3 Qh5 37.Kg3 Be5 38.Nf4 Rf4 39.Qh1 Qg4 40.Kh2 Re4) 35...Rf1 36.Qe8 Qe8 37.Qg2 Qg6 38.Kh4 Qg2 39.b8Q Rf8 40.Qf8 (40.Qd6 Qg5 41.Kh3 Rf3 42.Kh2 Qh4 43.Kg2 Qf2 44.Kh1 Rh3 45.Qh2 Rh2) 40...Bf8 41.Rd3+-) 35.Kh4 Bf6 (35...Qg6 36.Qe3 g2 37.b8Q Rb8 38.cb8R (worse 38.cb8B Rf1 39.Raa1 Ba1 40.Qc3 Bc3 41.Nf4 Qg5 42.Kh3 Rh1 43.Rh1 gh1Q; worse 38.cb8N Rf1 39.Raa1 Ba1 40.Qd4 Bd4 41.Rf1 gf1Q 42.Nc6 Qh1) 38...Rb8 39.Qg3 (39.Qa7 Rf8 40.Qe7 Rf1 41.Qd8 Bf8 42.Rf1 gf1Q 43.Qf6 Qgf6 44.Nf6 Qf6 45.Kg3 Qc3 46.Kf2 Bg7-+) 39...Qg3 40.Kg3+-) 36.Nf6 (36.Kg3 Be5 37.Qf4 Qg6 (worse 37...Rf4 38.Nf4 Bf4 39.Kf4 Qe5 40.Kf3 Rf8 41.Ke3 Qg5 42.Ke2 Qg4 43.Kd2 Qg5 44.Kc3 Qg7 45.Kd2 Qg5 46.Kc3 Qg7 47.Kd2 Qg5=) 38.Kf3 Qh5 39.Ke3 Bf4 (39...Rf4 40.Kd2 Rff8 41.b8Q Rb8 42.cb8R Qh2 43.Kd3 Qg3 44.Ne3 Rb8 45.Rf1-+) 40.Nf4 Qd1-+) 36...Qf6 37.Kg3 (better 37.Kh3 g2 38.Qd4 Qd4 39.Rad4 Rc8 40.bc8R Rc8 41.Rd6 Rc7+-) 37...Qe5 (37...Rg8 38.Bg8 Rg8 39.Qg5 Rg5 40.Kh4 Qf4 41.Kh3 Qg3) 38.Kg2+- Rg8 39.Kh1 (39.Bg8 Rg8 40.Kf1 Rf8 41.Kg1 Rg8 42.Kf2 Rf8 43.Ke2 Qh5 44.Kd3 Rf3 45.Qe3 Re3 46.Ke3 Qg5 47.Kd3 Qg3 48.Kc4 d5 49.Kd5 Qc7 50.Ra7 Qd7 51.Kc5 Qc7 52.Kb5 Qe5 53.Rd5 Qb2 54.Kc6 Qc3 55.Rc5 Qf6 56.Kd5 Qf7 57.Kd4 Qf2 58.Kd3 Qf3 59.Kd2 Qf2 60.Kc1 Qf1 61.Kb2 Qf6 62.Ka2 Qe6 63.c4 Qe8 64.Rc7 Kg8 65.Ra8 Kf8 66.Re8 Ke8 67.b8Q) 39...Qh5 40.Qh2 Qd1 (40...Qd1 41.Qg1 Qg1) 0-1. purt (2000) - jorquerino (2115), Rated Blitz game, lichess.org, 2014.

8.Nc3 Nf6+=.

8.Ne1 a6 9.c4+=.

8.Ne1 f5 9.f4 (9.Nc3 Nf6=) 9...c6 (9...ef4 10.Bg7 Ng7 11.ef4+=) 10.d4 (10.fe5 de5 11.d4 Nc7=) 10...ef4 11.ef4 Qb6 12.c3 Be6 13.Nd2 Nd7 14.Ndf3 (14.Nef3 Nef6=) 14...Kh8 (better is 14...Nef6+=) 15.Bc4?? (15.Ng5 Nc7=) 15...d5 (better is 15...Bc4 16.Nd3 Qa6–+) 16.Bd3 Nd6 17.Kh1 (17.Ng5 Rfe8=) 17...Ne4 (17...Nc4 18.Bc4 dc4 19.Nc2+=) 18.Ng5+= Ng5 19.fg5 c5 20.Nf3 (worse is 20.dc5 Nc5 21.Nf3 Ne4-/+) 20...cb4 21.cb4 Qb4 22.Rb1 Nb6 23.Bc1 Qd6 24.Re1 Bd7 (24...Rac8 25.Ne5=) 25.Ne5 Ba4 26.Qf3 Kg8 27.Bf4 (27.Bb5 Bb5 28.Ba3 Qd8 29.Bf8 Be5 30.Re5 Qg5=) 27...Qd8 28.h4 Re8 29.h5 Re6 (29...Be5!? 30.de5 Rc8=) 30.hg6+/- hg6 31.g4 fg4 32.Qg4 Qe7? (32...Qc8 33.Rbc1 Qe8 34.Rc7+/-) 33.Bg3 (better is 33.Bg6 Be5 34.Re5+–) 33...Rc8?? (better is 33...Be5 34.Be5 Re8+=) 34.Ng6+– Bd7 (34...Qf7 35.Re6 Bd7 36.Bf5+–) 35.Qh4 (35.Ne7 Re7 36.Bh7 Kh8 37.Qh4 Rc6 38.Re7 Rh6 39.gh6 Kh7 40.Qf6 Nc4 41.Qg7) 35...Rc3 (35...Qf7 36.Rf1 Qg6 37.Bg6 Rg6+–) 36.Bf5 (36.Ne7 Kf8 37.Ng6 Kg8 38.Re6 Rc1 39.Rc1 Be6 40.Qf4 Bf5 41.Qf5 Na8 42.Ne7 Kh8 43.Qh7) 36...Ree3?? (36...Qf7 37.Re6 Be6 38.Ne7 Qe7 39.Re1+/-) 37.Qf4 (better is 37.Ne7 Kf8 38.Qh7+–) 37...Bf5?? (better is 37...Qe8!+=) 38.Qf5 ½–½. Tagirov,Kajum K (1920) – Tukhvatullin,Vladislav (2175), Memorial Dautov, 2008.

7.d3 Bg4

8.Nbd2 b6 9.c4 a5 10.a3 Na6 11.Qb3 Re8 12.Rfe1 h5 13.h3 Bc8 14.Bc3 a4 15.Qb2 Bb7 16.d4 Nd7 17.d5 f5 18.Rac1 g5 19.Nf1 g4 20.hg4 hg4 21.N3d2 Qg5 22.f4 Qh4 23.Qb1 Rf8 24.Qc2 Bh6 25.Bd3 e4 26.Be2 Rf7 27.Red1 g3 28.Nb1 Rh7 29.Be1 Bf4 30.ef4 Qh1 0–1. mila77 (1740) – tyloo (1840), kurnik, 2012.

8.Nbd2 c6 9.c4 h6 10.h3 Be6 11.Rc1 Nbd7 12.Qc2 a5 13.a3 ab4 14.ab4 Re8 15.Ra1 Qb6 16.Bc3 Qc7 17.e4 Nh5 18.Rfb1 Nf4 19.Bf1 Ra1 20.Ra1 Rb8 21.Kh2 f5 22.g3 Nh5 23.Nh4 Kh7 24.Bg2 Rf8 25.ef5 gf5 26.Bf3 Ndf6 27.d4 e4 28.Be2 d5 29.cd5 cd5 30.Rc1 f4 31.g4?? f3–+ 32.Kg1 fe2 33.gh5 Nh5 34.Ne4 Bh3?? 35.Nf6 (35.Nf6 Kh8 36.Qh7) 1–0. bratek55 (1675) – modelek (1645), kurnik, 2011.

8.Nbd2 Nc6 9.b5 Ne7 10.c4 c5 11.a4 b6 12.Bc3 Nf5 13.Qb3 d5 14.cd5 Nd5 15.h3 Bf3 16.Nf3 Nc3 17.Qc3 e4 18.Ne5 ed3 19.Bd3 Ne7 20.f4 Nd5 21.Qc4 Ne3 22.Qe4 Nf1 23.Rf1 Qd4 24.Qd4 cd4 25.Nc6 a5 26.ba6 Rfc8 27.Bb5 d3 28.Ne7 Kh8 29.Nc8 Rc8 30.Rd1 Bd4 31.Kh1 Be3 32.Rd3 Bf4 33.Rf3 Rc1 34.Bf1 g5 35.a7 Rc8 36.Rd3 Ra8 37.Rd7 Be3 38.g4 b5 39.ab5 Ra7 40.Ra7 Ba7 41.Kg2 Kg7 42.Kf3 Kf6 43.Ke4 Ke7 44.Kd5 Kd7 45.Bd3 h6 46.Bf5 Kc7 47.Ke5 Kb6 48.Bd7 Bb8 49.Kf6 Kc7 50.Bc6 Kd6 51.Kf7 Ke5 52.Kg6 Kf4 53.Kh6 Kg3 54.Kg5 Kh3 55.Kf5 Kh4 56.g5 Ba7 57.g6 Bd4 58.b6 Kh5 59.b7 Ba7 60.g7 Kh6 61.g8Q 1–0. Adjailton (1810) – franz411 (1790), lichess.org, 2020.

8.Nbd2 Nbd7 9.c4 Re8 10.a3 a6 11.Qb3 c5 12.bc5 Nc5 13.Qc3 e4 14.de4 Nce4 15.Ne4 Re4 16.Bd3 Re6 17.Nd4 Ne4 18.Qc2 Re7 19.f3 Qd7 20.fg4 Qg4 21.Rf4 1–0. Phomopsis (1630) – PUPolovenko, lichess.org, 2018.

8.Nbd2 Nbd7 9.h3 Bf5 10.a3 c6 11.c4 d5 12.cd5 cd5 13.Ne5 Ne5 14.Be5 Qe7 15.Bb2 Rfe8 16.Bf3 Rad8 17.Qb3 h5 18.Rac1 Rd7 19.Rc2 Red8 20.Rfc1 d4 21.e4 Be6 22.Qa4 a6 23.Rc8 g5 24.Rd8 Rd8 25.Qd1 g4 26.hg4 hg4 27.Be2 Bh6 28.g3 Kg7 29.Nb3 Bc1 30.Qc1 Rh8 31.Bd4 Qd6 32.Nc5 Kg6 33.Ne6 fe6 34.Bf6 Kf6 35.Bg4 Qd3 36.Qf4 Ke7 37.Qc7 Kf6 38.Qf4 Ke7 39.Qc7 Qd7 40.Qc5 Qd6 41.Qg5 Ke8 42.Qg6 Kd7 43.Qg7 Kc6 44.Qh8 1–0. Phomopsis – takur1, lichess.org, 2017.

8.Nbd2 Bf3 9.Bf3 Nc6 10.Bc6 bc6 11.a3 Qe7 12.c4 d5 13.cd5 Nd5 14.Rc1 Qe6 15.Ne4 f5 16.Nc5 Qf6 17.Nd7 Qg5 18.Nf8 Rf8 19.Rc6 f4 20.ef4 Nf4 21.Rc7 Qg2 0–1. Phomopsis (1740) – rezo2015 (1770), lichess.org, 2020.

8.h3 Be6 9.c4 Qd7 10.Ng5 Nc6 11.Ne6 Qe6 12.b5 Ne7 13.f3 Rfd8 14.Qc2 Rac8 15.Nd2 c6 16.a4 cb5 17.ab5 d5 18.Ra7 dc4 19.dc4 Ned5 20.Qb3 Nb6 21.Rd1 Nfd7 22.Ne4 f5 23.Nd6 Nc5 24.Qb4 Rd6 25.Rd6 Qd6 26.Ra1 e4 27.Rd1 Qe7 28.Bg7 Kg7 29.fe4 f4 30.Bg4 Rc7 31.ef4 Qe4 32.Qc3 Kh6 0–1. Chess4Win (1640) – edo_anto_ojeda2018 (1670), lichess.org, 2019.

7.d4 ed4

8.ed4 a6 9.c4 Nc6 10.a3 Bg4 11.h3 Bf5 12.d5 Ne7 13.Nd4 Bd7 14.Nd2 Nf5 15.N2f3 Nd4 16.Nd4 Re8 17.Re1 Kh8 18.Bf3 Ng8 19.Qc2 Ne7 20.Ne2 Bb2 21.Qb2 Kg8 22.Nd4 Nf5 23.Re2 Qf6 24.Rd1 Re2 25.Be2 Re8 26.Qd2?? Nd4–+ 27.Qd4 Qd4 28.Rd4 Re2 29.c5 Kf8 30.cd6 cd6 31.Kf1 Re5 32.f4 Re7 33.Rc4 f5 34.Rc7 Be8 35.Rc8 Kf7 36.Rd8 Rd7 37.Rb8 Ke7 38.Ke2 Rc7 39.Kd3 Bb5 40.Kd4 Be8 41.g3?? Kd7 42.g4 Ke7 43.gf5 gf5 44.h4 Kd7 45.Kd3 Ke7 46.Kd4 Kd7 47.Kd3 Ke7 48.Kd4= ½–½. elsh1403 – repus3 (1615), kurnik, 2011.

8.ed4 Nc6 9.b5 Ne7 10.c4 Bg4 11.Re1 Nf5 12.Nbd2 Qd7 13.h3 Bf3 14.Nf3 d5 15.c5 c6 16.a4 Ne4 17.Qb3 Rae8 18.Bd3 Qd8 19.a5 Nh4 20.Nh4 Qh4 21.Qc2 f5 22.f3 Ng3 23.Qf2 f4 24.Re8 Re8 25.Re1 Re1 26.Qe1 Qf6 27.Qe8 Bf8 28.a6 ba6 29.bc6 Qg5 30.c7 1–0. Orang4Utan (1820) – JaapvandenBerg (1870), lichess.org, 2020.

8.ed4 d5 9.Nbd2 Nc6 10.a3 Bf5 11.Nb3 b6 12.Bb5 Ne7 13.Ne5 Qd6 14.c4 a6 (14...c6 15.c5 bc5 16.dc5=) 15.c5+= bc5 16.bc5 Qd8 17.Nc6 (17.Ba4 Ne4=) 17...Nc6 18.Bc6 Rb8 19.Bc3 Ne4 20.Be1 Rb3 (20...Qf6!? 21.Bd5 Rfd8=) 21.Qb3+= Bd4 (21...Nc5 22.Qe3 Ne6 23.Rd1=) 22.Rc1 (better 22.Rd1!? Nc5 23.Qb4+/-) 22...Nc5= 23.Qd5 Qd5 (23...Nd3 24.Rc4 Nf4 25.Qd8 Rd8 26.Ba5=) 24.Bd5 Nd3? (better 24...Rd8 25.Ba2 Rd7+=) 25.Rc7+/- Ne1 (25...Be6!? 26.Bf3 Be5+/-) 26.Re1+- Rb8 (26...Be6 27.Rd1 Rb8 28.Be6 fe6+-) 27.Rf7 Kh8 28.h3 Bc3 (28...Bc5 29.g4 Bd3+-) 29.Ree7 Be5 (29...Bg7 30.Rg7 g5+-) 30.Rh7 1-0. sezwho (2090) - JMD (2115), Rated Bullet game, lichess.org, 2014.

8.ed4 d5 9.Nbd2 Re8 10.Ne5=.

8.ed4 d5 9.Nbd2 Bf5 10.c4 (10.Bd3 Bd3 11.cd3 Qd6=) 10...c6 (10...a5 11.b5=) 11.Qb3 (11.Ne5 Nbd7=) 11...Re8 (11...Nbd7 12.Ne5=) 12.Rfe1 (12.Ne5 Nbd7=) 12...Nbd7 13.Ne5 Ne5 14.de5 Ne4 (14...Ng4 15.Bg4 Bg4 16.cd5 Qd5 17.Qd5 cd5 18.Nf1=) 15.Ne4 (15.Nf3!?=) 15...de4+= (worse is 15...Be4 16.f3 Bf5 17.f4+=) 16.f4 ef3 17.Bf3 Qc7 18.Qc3 (18.Qe3 Rad8+=) 18...Rad8 19.Rad1 Rd1 20.Bd1 Rd8 21.Bc2 Bc2–+ 22.Qc2 Qb6 23.Kh1 Qb4 24.Rb1 Qd2 25.Qb3 Rd3 26.Qa4 b5 (26...b5 27.cb5 cb5 28.Qa7 Qe2–+) 0–1. Scholbach,Tillmann (1775) – Hillmann,Ralf (2030), Leipzig VfB op, 2004.

8.ed4 d5 9.Re1 Re8=.

8.ed4 Nbd7 9.c4 Ne8 10.Nbd2 f5 11.Ng5?? (better is 11.Qc2+=) 11…Qg5–+ 0–1. elsh1403 – pluszowy (1620), kurnik, 2011.

8.ed4 Re8 9.c4+=.

8.ed4 Re8 9.Re1 Nc6 10.b5 Ne7 11.Nbd2 Nf5 12.c4 d5 13.c5 Ne4 14.Qc2 Nd2 15.Qd2 c6 16.a4 h6 17.Bf1 g5 (17...Re6!?+=) 18.Re8+/- Qe8 19.Re1 Be6 20.Ne5 Qd8 21.f3 Nh4 22.bc6 bc6 23.Nc6 Qd7 (23...Qe8 24.Ne5+/-) 24.Ne5 (24.Bb5 a6 25.Ne5 Qc7+-) 24...Qa4+/- 25.Bc3 Rb8 (25...Be5!? 26.Re5 Ng6+/-) 26.Ra1+- Qe8 27.Ra7 Nf5 28.Ra1 Ra8 29.Re1 Ra3 30.Bb4 (30.Bd3!? Qa8+-) 30...Rb3 31.Bc3 Qb8?? (31...Ra3 32.Bd3 Qa8+-) 32.Bd3+- Ne7 33.c6 (better 33.Qc2+-) 33...Be5+= 34.Re5 Nc6 35.Re1 Rb6 (35...Qf4 36.Bh7 Kg7 37.Qc2=) 36.Ba5 (36.Bc2!?+=) 36...Rb7 (36...Rb2 37.Qc3 Na5 38.Qa5=+) 37.Bc3 Nb4 (37...Rb6 38.Ra1+=) 38.Bb4 Rb4 39.h3 (39.Rd1 Rb2 40.Qe3 Qb3=) 39...Rb2 (39...Qb6 40.Kh1-/+) 40.Qe3=+ Qb4 (40...Qg3 41.Re2 Re2 42.Qe2 Bh3 43.Qf2 Qf2 44.Kf2-/+) 41.Kh2 (41.Re2!?=) 41...Qd2 42.Qd2 Rd2 43.Bf5?? (43.Re3 Rb2 44.Re2 Rb4=+) 43...Rd4 (better 43...Bf5 44.Kg1 Rd4-+) 44.Be6=+ fe6 45.Re6 Kg7 46.Rd6 Rd3 47.Rd8 Kg6 48.Ra8 (48.Rd6 Kh7=) 48...Kh5 (48...h5 49.Ra6 Kf7 50.Ra7 Kf6 51.Ra6 Ke5 52.h4 gh4 53.Rh6=) 49.Ra7 g4 (better 49...Rd2!?=) 50.Ra5 (50.Ra5 gf3 51.gf3-/+). dagon1917 (2290) - zumpili (2450), Rated Bullet game, lichess.org, 2021.

8.ed4 Ne8 9.Re1 f5 10.c4 Nd7 11.Qb3 Kh8 12.Nc3 Ndf6 13.Rad1 h6 14.a4 g5 15.h3 Kh7 16.d5 Ng8 17.Qc2 Qf6 18.Nd4 Bd7 19.Bd3?? (19.Bh5 a5 20.Ncb5 Kh8+–) 19...Ne7?? (better is 19...Qd4 20.a5 Qh4–+) 20.g4 (better is 20.Ne6 Rf7 21.Ng7 Qg7 22.Re3+–) 20...Qd4? 21.Bf5?? Nf5?? 22.Rd4+– Bd4 23.gf5?? Rf5?? 24.Re7+– Ng7 25.Rd7 Re8 26.Nd1 Re1 27.Kg2 Rd1 28.Qf5 Kg8 29.Qf7 Kh8 30.Bd4 (30.Bd4 Rg1 31.Kg1 Kh7 32.Qg7; 30.Qf8 Kh7 31.Rg7 Bg7 32.Qg7) 1–0. elsh1403 (1630) – pluszowy, kurnik, 2011.

8.Qd4?? Nh5 9.Qd2 Bb2 –+.

8.Qd4 Nh5 9.Ne5 Be5 –+.

8.Bd4 Nc6 9.Bc3 a6 10.a3 Re8 11.Qc1 Ne5 12.Rd1 Ne4 13.Be5 Re5 14.Ne5 Be5 15.Nd2 Nc3 16.Re1 Ne2 17.Re2 Ba1 18.Qa1 Qe7 19.Nb3 b6 20.Qd4 Bb7 21.Qf4 Qe5 22.Qe5 de5 23.Rd2 Bc6 24.f3 Kf8 25.Kf2 Ke7 26.c4 f6 27.Ke2 h5 28.Rd1 Ba4 29.Rd3 g5 30.e4 Rg8 31.Nd2 g4 32.Kf2 Bc6 33.Nf1 gf3 34.gf3 (34.Kf3? f5 35.Kf2 Be4–+) 34...h4 35.Ne3 h3 36.Nf5 Ke6 37.Ng3 Ba4 38.Rd2 Bb3 39.c5 bc5 40.bc5 Ba4 41.Rd3 Bb5 42.Rd2 Bc6 43.Rd3 a5 44.Rb3 Kd7 45.Rd3 Ke6 46.Rb3 Ba8 47.Rb5 a4 48.Rb4 Bc6 49.Ke3 Kd7 50.Ke2 Kc8 51.Ke3 Bd7 52.Kf2 Be8 53.Rc4 Bb5 54.Rb4 c6 55.Rb2 Kc7 56.Rd2 Bc4 57.Rc2 Bb3 58.Rd2 Rb8 59.Nf5 Bf7 (59...Rb5 60.Nd6 Rc5 61.Ne8 Kb6 62.Nf6=) 60.Rd3 (60.Rd6 Be8+=) 60...Rb3 61.Ke3 Rb2 62.Rd2 Rb5 63.Nd6 Rb3 64.Rd3 Bh5 65.Ne8?? Be8–+ 0–1. Piljugin,A – Dudukin,Ilya, RUS–ch U16 Kazan, 1997. (=1.Nf3 Nf6 2.b4 d6 3.Bb2 e5 4.e3 g6 5.Be2 Bg7 6.0-0 0-0 7.d4 ed4)

8.Nd4 a6 9.a3 d5 10.c4 c6 11.c5 Nbd7 12.Nd2 Qc7 13.h3 Re8 14.Re1 Ne4 15.Ne4 de4 16.Qc2 f5? 17.Bc4+– Kh8 18.Ne6 Re6 19.Bg7 Kg7 20.Be6 Ne5 21.Ba2 Bd7 22.Red1 Re8 23.Rd6 Bc8 24.Rad1 Qe7 25.Qb2 Kh6 26.Qd2 Qg5 27.Kh1 Qh4 28.Bb3 Nd3 29.Kg1 f4 30.Bc4 Qg5?! 31.Bd3 ed3 32.ef4 Qf5 33.Rd3 Be6 34.g4 Qe4 35.f5 (35...Kg7 36.Re1 gf5 37.Re4 fe4 38.Qg5 Kh8 39.Qh5+–) 1–0. market (1755) – fastrook (1815), GameColony.com, 2002.

8.Nd4 c5 9.Nb5=.

8.Nd4 Nc6 9.b5 Nd4 10.Bd4 Be6 11.c4 c6 12.a4 Qe7 13.Nc3 Rfd8 14.e4 d5 15.ed5 cd5 16.Bf6? (better is 16.c5=) 16...Bf6–+ 17.Qb3 dc4 18.Bc4? (better is 18.Qb2–+) 18...Bc4 19.Qc4 Rac8 20.Qb3 Rc3 (20...Rc3 21.Qb1 Rcd3–+) 0–1. elsh1403 – mam2 (1605), kurnik, 2011.

8.Nd4 Nc6 9.b5 Nd4 10.Bd4 Bf5 11.c4 Ne4 12.Nd2?? (better is 12.Bf3 Re8 13.Bg7 Kg7 14.Be4 Be4 15.Nc3+=) 12...Bd4–+ 13.ed4 Nd2 (better is 13...Nc3 14.Qe1 Re8–+) 14.Qd2+= Qf6 15.Bf3 Rab8 16.a4 b6 17.a5 Rfe8 18.ab6 ab6 19.Ra7 Qe7 20.Bc6 Red8 21.Re1+– Qf8 22.Rc7 Rbc8 23.Ree7 Rc7 24.Rc7 Qg7 25.Rb7 d5 26.Bd5 Qf6 27.Rf7 Qf7 28.Bf7 Kf7 29.h3 h5 30.Qc3 Rc8 31.c5 bc5 32.dc5 Rd8 33.Qb3 Kg7 34.c6 Re8 35.Qc3 Kh6 36.b6 Re6 37.b7 Be4 38.b8Q (38.b8Q Re8 39.Qf4 Kh7 40.Qf7 Kh6 41.Qcg7 Kg5 42.Qff6#) 1–0. elsh1403 (1620) – esox4, kurnik, 2012.

8.Nd4 Nd5 9.a3 Qg5+=.

8.Nd4 Nd5 9.b5 Nd7 10.c4 N5f6 11.a4 Nc5 12.a5 a6 13.Nc3 Re8 14.Bf3 Bd7 15.Nb3 Nfe4 16.Ne4 Ne4 17.Bg7 Kg7 18.Qd4 Qf6 19.Rfd1 Qd4 20.Rd4 f5 21.b6 Rac8 22.bc7 Rc7+= 23.Nd2 Nd2 24.Rd2 Re6 25.Rb2 Bc8 26.Bd5+/- Ree7 27.Rb6 Red7 28.f4 Kf6 29.Kf2 Rc5+= 30.e4 fe4= 31.Ke3 Ke7 32.Ke4+/- Rdc7 33.Kd4 Bf5 34.Rb4 Bc8 35.h3 h5 36.h4+/- Kd8 37.Rb6 Rd7 38.Kc3 Kc7+/- 39.Kb4 Re7 40.Rd1 Rc6 41.Bc6 bc6 42.Rd3 Re4 43.Rg3 Bf5 44.Ra6 d5 45.Rc3 d4 46.Ra3 Bc8 47.Ra7 Kd6 48.Rg7 c5 49.Kb5 (49...Bd7 50.Kb6+–) 1–0. Hemzo,Miguel Angelo – Lebel,Patrick, Orang–Utan Invitational, 2001.

8.Nd4 Nd5 9.b5 Qg5 10.Nf3 Qf5 11.Bg7 Kg7 12.Qd4 Qf6 13.c4 Qd4 14.Nd4+=.

8.Nd4 Bd7 9.c4 Nc6 10.b5 Nd4 11.Bd4 a6 12.a4 ab5 13.cb5 Qe8 14.Nd2 c5 15.Bb2 d5 16.Nf3 b6 17.Qc2 Bf5 18.Bd3 Bd3 19.Qd3 Qe6 20.Rfd1 Rfd8 21.Qb3 c4 22.Qc3 Nh5 23.Qc2 c3 24.Bc3 Rdc8 25.Nd4 Bd4 26.Rd4 Nf6 27.Qd3 Rc4 28.Rc4 dc4 29.Qd4 Kg7 30.h3 h5 31.a5 ba5 32.Ra5 Ra5 33.Ba5 Qd5? 34.b6 Qd4?? 35.ed4+– Nd7 36.b7 Nb8 37.Bc7 c3 38.Bb8 c2 39.Bf4 (39.Bf4 c1Q 40.Bc1+–) 1–0. lllllll21 (1620) – etkaspar (1760), kurnik, 2012.

8.Nd4 Bd7 9.c4 Nc6 10.b5 Nd4 11.Bd4 a6 12.a4 c6 13.Qb3 Ne4 14.Bg7 Kg7 15.Bf3 Nc5 16.Qc3 Kg8 17.Nd2 cb5 18.cb5 ab5 19.ab5 Bb5 20.Nc4 Bc4 21.Qc4 Ra1 22.Ra1 Qc7 23.g3 Rc8 24.Bd5 Na6 25.Bf7 Kg7 26.Qe6?? Rf8 27.Be8 Nc5 28.Qd5 Re8 29.Rc1 Qe7 30.Rb1 Rf8 31.Qd4 Qf6 32.f4 Rf7 33.Qd5 h6 34.Kg2 Qe7 35.Kf2 Qe4 36.Qd6 Qb1 37.Qc5 Qb2 38.Kf3 Rd7 39.h4 Qf6 40.h5 Qc6 41.Qc6 bc6 42.hg6 Kg6 43.Ke4 c5 44.f5 Kf6 45.g4 c4 46.Kf4 c3 47.e4 c2 48.e5 Kg7 49.f6 Kf7 50.Kf5–+ Rd5 51.Ke4 Re5! 52.Ke5 c1Q 53.Kf5 Qg5 54.Ke4 Qg4 55.Ke5 Qg5 56.Ke4 Kf6 57.Kd4 Qf4 58.Kd5 Qe3 59.Kc4 Ke5 60.Kb4 Kd5 61.Kb5 Qb3 62.Ka6 Kc6 63.Ka7 Qb7# 0–1. lllllll21 – eccu (1675), kurnik, 2012.

8.Nd4 Nbd7 9.c4 c6 10.Qb3 Qe7 11.a4 Ne8 12.Re1 Ne5 13.Nc3 Kh8 14.Rad1 f5 15.h3 Be6 16.Ne6 Qe6 17.f4 Nd7 18.Bf3 (18.e4 Nef6+=) 18...Nef6 19.e4 fe4? (better is 19...Nb6=) 20.Ne4+/- (worse is 20.Be4 Qf7+=) 20...Qf5 21.Bc1 Ne4+/- 22.Be4 Qh5 23.g4 Qh4+= 24.f5 gf5 25.Bf5 Ne5 26.c5 d5 27.Bf4?? Rf5!–+ 28.gf5 Qf4 29.Rf1 Qh4 30.Qe3 Rg8 31.Kh1 Ng4 32.Qf3 Ne5 33.Qg4?? Qg4 34.hg4 Ng4 35.Rd4 Bd4 36.Rf4 Nf2 37.Kh2 Ng4 38.Kh3?? Nf2 39.Kh4?? Bf6 40.Kh5 Rg5 41.Kh6 Ng4 42.Rg4 Rg4 43.Kh5 (43.Kh5 Rh4#; 43.b5 Rh4#). elsh1403 – marimba3, kurnik, 2012.

7.d4 e4

8.Nfd2 a5+=.

8.Nfd2 c5=.

8.Nfd2 Qe7 9.c4 Ne8 (9...Nc6 10.a3=) 10.Nc3+= f5 (10...a5 11.ba5 (11.Nde4? ab4 12.Bf3 bc3 13.Nc3 Nc6–+; 11.Nce4?! ab4 12.a3 f5+=) 11...Nf6 12.Qc2+=) 11.a4 (11.Nd5 Qg5+/-) 11...Nf6 12.Qb3 (12.f3 Nc6 13.Qb3 ef3 14.Rf3 f4 15.c5 Kh8 16.cd6 cd6=+ (< 16...Qd6 17.Rf4 Be6 18.Bc4 Bc4 19.Qc4+=)) 12...Be6 (12...a5 13.Rab1+=) 13.a5 Bf7 (13...c6 14.f3+=) 14.Qc2 (14.f3 ef3 15.Rf3 Re8+=) 14...g5 (14...Nc6 15.b5 Nb4 16.Qb3+=) 15.b5 Nbd7 (15...a6 16.f3 ab5 17.cb5 ef3 18.Bf3+= (18.Rf3 g4 19.Rg3 Nh5–+)) 16.Ba3 (16.a6!? Rab8 17.ab7 Rb7 18.Ra2+/-) 16...Rae8 17.b6 ab6 (17...Nb6 18.ab6) 18.ab6 c6 (18...Nb6 19.c5 Nbd5 20.Rfb1=+) 19.c5 (19.Rfb1 f4+=) 19...d5 (19...dc5 20.Na4=) 20.Nb5 (20.f4 Ng4 21.Bg4 fg4=) 20...Bh5 (20...cb5 21.c6 b4 22.cd7 Nd7-/+) 21.Bh5+/- Nh5 22.Nd6 Rb8 23.Bb4 f4 24.Ra7 f3 25.Rfa1 Qe6? 26.Qd1 fg2?? 27.Qh5+– g4 28.Qh4 Rf6 29.Rb7 Rbf8 30.Raa7 g3 31.Qg3 Rg6 32.Qg6 Qg6 33.Rd7 Bh6 34.Rh7 Qg4 35.Rh6 ½–½. Lauermann,Answarth – Frank,Thomas, Kassel op, 1994.

8.Nfd2 Re8 9.c4 c6 10.Nc3 Qe7 11.Qb3 h5 12.d5 c5 13.bc5 dc5 14.a4 Na6 15.Nb5 Bg4 16.Rfe1 Be2 17.Re2 b6 18.a5 Nb4 19.ab6 ab6 20.Ra8 Ra8 21.h3 Nd3 22.Ba3 Nd7 23.Nc7 Rc8 24.Nb5 f5 25.d6 Qe5 26.Nf1 Ra8 27.Nc7 Ra7 28.Nb5 Ra5 29.Nd2 Qa1 30.Kh2 Be5 31.g3 h4 32.Nb1 hg3 33.fg3 Bg3 34.Kg3= Qe5 35.Kg2 f4 36.Qc3?? f3–+ 37.Kf1 fe2 38.Ke2 Qh2 39.Kd1 Qg1 40.Kc2 Qf2 (40...Qf2 41.Nd2 N7e5–+) 0–1. elsh1403 – lordundead (1805), kurnik, 2011.

8.Nfd2 Re8 9.c4 h5 10.Nc3 Bf5 11.Qb3 c6 12.a4 Nbd7 13.b5 Rb8 14.Ba3 Qc7 15.Rac1 c5 16.Nd5 Qd8 17.dc5 dc5 18.Rfd1 Qc8 19.Nf1 b6 20.Ng3 Be6 21.Qc2 Qb7 22.Nf4 Bg4 23.Bg4+= Ng4 24.Ne4 Re4 25.f3?? Ne3?? 26.Qe4-/+ Qe4 27.fe4 Nd1 28.Rd1 Bd4 29.Kf1 Ne5 30.Ne2 Nc4 31.Nd4 cd4 32.Be7?? Ne3–+ 33.Ke2 Nd1 34.Kd1 Re8 35.Bf6 Re4 36.Kd2 Kf8 37.Kd3 Rg4 38.g3 Ke8 39.Bd4 Kd7 40.a5 (40.a5 ba5 41.Ba7–+). elsh1403 – lakyluciano (1610), kurnik, 2011.

8.Ng5=.

8.Nfd2 d5

9.a4 a6 10.c4=.

9.a4 c6 10.c4 (10.c4 Be6 11.Nc3+=). makaveli1982 – Felipe Coimbra, internet, 2007.

9.c4 dc4 10.Qc2=.

9.c4 Qd6 10.c5 Qe6 11.Nc3=.

9.c4 Qe7+=.

9.c4 c6

10.a4 Nbd7 11.b5 h5 12.Nc3 Nh7 13.Qb3 Ndf6 14.a5 g5 15.Rfc1 g4 16.a6 h4 17.cd5 cd5 18.ab7 Bb7 19.Na4 h3 20.Nc5 Bc8 21.Ba3 hg2 22.Na6 Ba6 23.Bf8 Bf8 24.Ra6 Ng5 25.Nf1 gf1Q 26.Bf1 Nf3 27.Kg2 Qb8 28.Be2 Qh2 29.Kf1 Qg1 0–1. Orang4Utan – luigi9, lichess.org, 2018.

10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Qa5 14.Nc3 Be6 15.Qb3 Nbd7 16.Bb2 Qc7 17.Ra1 Nb6 18.c5 Nc4 19.Nc4 dc4 20.Bc4 Nd5 21.Nd5 Bd5 22.Bd5 cd5 23.Qd5 Rd8 24.Qe4 1–0. Orang4Utan (1770) – Ikramov_taxur (1690), lichess.org, 2018.

10.Nc3 a6 11.a4 Nbd7 12.b5 ab5 13.ab5 Ra1 14.Qa1 dc4 15.Bc4 Nb6 16.Bb3 Re8 17.Qa2 Be6 18.Be6 Re6 19.Ba3 Nfd5 20.Nce4 h5 21.Nc5 Re7 22.Nce4 Re8 23.Nd6 Re7 24.Bc5 Nc3 25.Qb3 Nbd5 26.bc6 bc6 27.e4 Ne2 28.Kh1 Ndf4 29.e5 Qd7 30.g3 Nh3 31.Qd3 Qg4 32.f3 Ng3 33.hg3 Qg3 34.d5 Be5 35.Nf5 gf5 36.f4 Bf4 37.Rf4 Qg1 0–1. Orang4Utan (1655) – Bradis (1710), lichess.org, 2017.

10.Nc3 Qe7 11.b5 Nbd7 12.a4 Nb6? (better 12...Qe6+=) 13.Ba3+– Nc4?? (13...Qe6 14.Bf8 Bf8+–) 14.Be7 Nd2 15.Qd2 (15.Qd2 Re8 16.Bf6 Bf6 17.bc6 bc6 18.Rab1+–) 1–0. Orang4Utan (1830) – aravind555 (1770), lichess.org, 2020.

10.Nc3 Bf5 11.Rc1 Na6 12.b5 cb5 13.Nb5 Nc7 (13...Qd7 14.Qb3 dc4 15.Bc4+= (15.Qc4?! Rfc8 16.Qb3 Rc1 17.Rc1 h6+=; worse is 15.Rc4 Be6+=)) 14.Ba3+/- Nb5 15.Bf8 (worse is 15.cb5 Re8+=) 15...Nd4 16.Bg7 Ne2 17.Qe2 Kg7 18.cd5 Qd5 19.Nb3 Bg4 20.Qb2 Qg5 21.Rc5 Qh4 22.Nd2 Bf3?? (better is 22...Be2 23.Rfc1 Ba6+–) 23.gf3+– ef3 24.Kh1 Qh3 25.Rg1 Rd8 26.Ne4 Rd1 (26...Qe6 27.Re5 Qb6+–) 27.Qf6 Kh6 28.Rcg5 (28.Rcg5 Qg2 29.R5g2 fg2 30.Kg2+–) 1–0. Woschkat,Karl_Heinz (1890) – Zornack,Andre (1985), remoteschach.de, 2002.

10.c5 Be6 11.a4 Nbd7 12.b5 Qc7 13.Qc2 Rfe8 14.Na3 Nf8 15.Bc3 Bd7 16.a5 b6 17.ab6 ab6 18.cb6 Qb6 19.bc6 Bc6 20.Rfb1 Qc7 21.Bb4 Ne6 22.Nb3 Ba4 23.Qc3 Qc3 24.Bc3 Rec8 25.Nc5 Nc5 26.dc5 Nd7 27.Bg7 Kg7 28.Rc1 Rc5 29.Rc5 Nc5 30.Nb5 Ne6 31.Nc3 Nc5 32.Nd5 Rd8 33.Nb6 Bc6 34.g3 Ne6 35.Ra7 h5 36.Bc4 Kf6 37.Be6 Ke6 38.Rc7 Bb5 39.Rc5 Bd3 40.Kg2 Rd6 41.Nc8 Ra6 42.Rc7 f5 43.Re7 Kf6 44.Rh7 Bc4 45.Kh3 Rc6 46.Ne7 Re6 47.Ng8 Ke5 48.Kh4 Ra6 49.Re7 Kd6 50.Rg7 Bg8 51.Rg8 Ke7 52.Kg5 Kf7 53.Rb8 Kg7 54.Rb7 Kg8 55.Kh6 Rc6 56.Rb8 Kf7 57.Rb7 Kf6 58.Rg7 Rc2 59.Rg6 Ke5 60.Kh5 Rf2 61.h4 Rf3 62.Kg5 Rg3 63.Kh6 Re3 64.h5 Rh3 65.Rg1 e3 66.Kg6 f4 67.h6 e2 68.h7 f3 69.Rg5 Ke6 70.Rh5 Rg3 71.Kh6 e1Q 72.h8Q Qe3 73.Kh7 Qe4 74.Kh6 Qg6 0–1. Adjailton (1840) – rjdg (1795), lichess.org, 2020.

10.Nc3 Be6

11.a3 a5 12.b5 Qc8 13.Qb3 cb5 14.cb5 b6 15.Rac1 Qb7 16.Rc2 Nbd7 17.Rfc1 Rfc8 18.Na4 Rc2 19.Qc2 Bg4 20.Bf1 Nh5 21.Qc6 Rb8 22.h3 Be6 23.g4 Nhf6 24.f4 h5 25.g5 Ne8 26.Be2 Bf8 27.Kg2 Nd6 28.Kg3 Qc6 29.bc6 Nf5 30.Kg2 Ne3 31.Kf2 Nc4 32.Nc4 dc4 33.cd7 Bd7 34.Nc3 b5 35.Ne4 Bh3 36.d5 Rc8 37.Nf6 Kg7 38.Nh5 Kh7 39.Nf6 Kg7 0–1. Orang4Utan (1645) – JPKloos (1630), lichess.org, 2017.

11.a4 a6 12.b5 ab5 13.ab5 Ra1 14.Qa1 Nfd7 15.cd5 cd5 16.Qa7 Qb6 17.Ra1 Rc8 18.Nb3 Bf8 19.h3 Bb4 20.Qb6 Nb6 21.Rc1 Bc3 22.Rc3 Na4 23.Rc8 Bc8 24.Ba3 Nb6 25.Bd6 N8d7 26.Nc5 Nc5 27.dc5 Nc4 28.Be7 Kg7 29.c6 bc6 30.bc6 f6 31.Bc5 Kf7 32.Kf1 Ke8 33.Bd1 Kd8 34.Bd4 f5 35.Ke2 Kc7 36.Ba4 Ba6 37.Kd1 Kd6 38.f3 h5 39.fe4 fe4 40.Kc2 Na3 41.Kb3 Nc4 42.Kb4 Ne5 43.Bb6 1–0. Orang4Utan (1670) – rain2014 (1660), lichess.org, 2017.

11.a4 b6 12.b5 dc4 13.Nc4 cb5 14.ab5 Nbd7 15.Ba3 Re8 16.Nd6 Qc7 17.Rc1 Red8 18.Nce4 Qb8 19.Bf3 Nd5 20.Ng5 a5 21.e4 Nb4 22.Bb4 ab4 23.e5 Ra3 24.Ne6 fe6 25.Qd2 Nf8 26.Qb4 Rf3 27.gf3 Qa7 28.Ra1 Qe7 29.Ra6 Qg5 30.Kh1 Qf4 31.Qc3 g5 32.Qe3 Qh4 33.Rb6 Bh6 34.Qb3 Qf4 35.Qc3 g4 36.fg4 Qg4 37.Qg3 Qg3 38.fg3 Ng6 39.Nf7 Rd4 40.Nh6 Kg7 41.Nf7 Rd5 42.Re6 Kg8 43.Ng5 Ne5 44.b6 1–0. Orang4Utan (1640) – Eric_1380 (1610), lichess.org, 2018.

11.a4 Nfd7 12.Qb3 Qg5 13.b5 Bh3 14.g3 Bf1 15.Bf1 Nf6 16.cd5 cd5 17.Ba3 Rc8 18.a5 Ng4 19.Bh3 Ne3 20.Bc8 Nc4 21.Nc4 dc4 22.Qc4 Bd4 23.Qd4 Nc6 24.bc6 Qe5 25.Qe5 f6 26.Qe6 Kg7 27.Nd5 Kh6 28.Nf6 g5 29.Bf8 Kg6 30.Qf5 1–0. Orang4Utan (1715) – lichi23 (1705), lichess.org, 2018.

11.Qb3 Na6 12.a4 Nc7 13.Rfc1 Rc8 14.b5 cb5 15.ab5 a6 16.b6 Nce8 17.c5 Nd7 18.Qd1 Nb6 19.cb6 Qb6 20.Ba3 Nd6 21.Bc5 Qc7 22.Na4 b5 23.Nb6 Rb8 24.Ra6 Qb7 25.Rca1 Bc8 26.Bd6 Qa6 27.Ra6 Ba6 28.Nd5 f5 29.Bb8 Rb8 30.Qb3 Kh8 31.Nc7 Bb7 32.Bb5 Bc6 33.Qa4 Bb5 34.Nb5 1–0. Orang4Utan (1845) – erdnussbuddha (1830), lichess.org, 2020.

11.Qb3 Nbd7 12.Rfc1 Nb6 13.c5 Nbd7 14.a4 Ng4 15.b5 Qh4 16.h3 Qf2 17.Kh1 Ne3 18.Rg1 Nf5 19.Raf1 Ng3 20.Kh2 Nf1 0–1. Orang4Utan (1695) – estturjap (1700), lichess.org, 2017.

11.b5 Nbd7 12.a4 Rc8 13.Qb3 c5 14.cd5 Bf5 15.dc5 Nc5 16.Qa2 h5 17.Rfd1 Qd6 18.Rac1 Rcd8 19.Bc4 Rfe8 20.Ba3 b6 21.Nb3 Ng4 22.g3 h4 23.Nc5 bc5 24.Ne2 g5 25.h3 Ne5 26.g4 Bg4 27.hg4 Ng4 28.Bb2 Qh2 29.Kf1 Qf2 0–1. Orang4Utan (1820) – VinCroatia (2000), lichess.org, 2020.

11.c5 b5 12.a4 ba4 13.Ra4 a5 14.b5 cb5 15.Bb5 Nc6 16.Bc6 Rb8 17.Qc2 Qc7 18.Bb5 Ng4 19.g3 Nh6 20.Rfa1 Rb7 21.Ra5 Rfb8 22.c6 Rb6 23.Ra7 Qd6 24.c7 Rc8 25.Ba3 Qa3 26.R1a3 1–0. Orang4Utan (1655) – dmoWL (1650), lichess.org, 2018.

11.cd5 cd5 12.Rc1 Nbd7 13.Qa4 Nb6 14.Qa5 h5 (14...Bg4 15.Bg4 Ng4 16.h3+=) 15.a4 Ng4 16.Nb5 a6? (better is 16...Qg5!? 17.Rc2 Rfc8+=) 17.Nc7+– Qd6 18.Bg4 hg4 19.Na8 (19.Ne6?! fe6 20.Ba3 g3 21.hg3 Nc8+=) 19...Ra8 20.Ba3 Nc4 21.Nc4 dc4 22.Rfd1 (better is 22.Rc3!?+/-) 22...Bd5+= 23.Qc5 Qe6 (better is 23...Bf8 24.Qd6 Bd6+=) 24.Rc3?? (better is 24.Qc7+/-) 24...Bf8–+ 25.Qc7 Bd6 26.Rc4 Bc4 27.Qa5 Rc8 28.Rc1 Bc7 29.Qg5 Qd6?? 30.Rc4+= Qh2 31.Kf1 Qh1 32.Ke2+/- Qg2? 33.Rc7!+– Qf3 34.Ke1 Qh1 35.Kd2 Rc7 36.Qd8 Kg7 37.Qc7 Qa1 38.Qc1 Qa2 39.Qb2 Qe6 40.d5 Qf6 41.d6 (41...Qb2 42.Bb2 Kf8 43.Be5+–) 1–0. kamret (2200) – Fetzer (1850), GameColony.com, 2003.

11.f3 ef3 12.Rf3 dc4 13.Nc4 (worse is 13.Bc4 Bg4+=) 13...Nd5 14.Qb3 (14.a3 Re8=) 14...Bg4 (better is 14...b5-/+) 15.Rf2= Be2 16.Ne2 Qe7 17.Raf1 (17.b5 Rd8=) 17...Qb4 (17...b5!? 18.Ne5 Qb4 19.Qb4 Nb4+=) 18.Qb4= Nb4 19.Ba3 a5 20.Nd6 f5+= 21.Nf4 Nd7 22.Nb7 Nb6?? 23.Ne6?? Rf7 24.Nd6 Rf6 25.Ng7 Rd6 26.e4? Kg7 27.ef5 Rf8 28.d5 N6d5 29.Bb2 Kg8 30.f6 Nd3 31.f7 Rf7! 32.Rf7 Nb2 33.Rf8 Kg7 34.R8f7 Kh6 35.R1f3 g5 36.Rh3 Kg6 37.Rhh7 Rf6 38.Rhg7 Kf5–+ 39.Rb7 Nc4 40.h3 Ne5 41.g4? Kf4 42.Rg8 Kg3 43.Re8 Nf3 44.Kh1 Nf4 45.Rb3 Rd6 (45...Rd6 46.Rf3 Kf3–+) 0–1. elsh1403 – carocan (1790), kurnik, 2011.

11.f3 ef3 12.Rf3 Nbd7 13.Qc2 Bg4 14.Rf2 Bf5 15.Bd3 Ne4 (better is 15...Ng4 16.Rf3 Qg5=) 16.Nce4+– (worse is 16.Be4 de4 17.Nce4 Qe7=) 16...de4 17.Ne4 Qe7 18.a3 Rae8 19.Rf4 Bh6 20.Rf5 gf5 21.Ng3 Qe3 22.Kh1 Bf4 23.Nf5 Qe1 24.Bf1 Qe6 25.g3 Bc7 26.d5 Qg6 27.Bd3+– Qh5 28.Nh4?? Re3 29.Bh7?? Qh7–+ 30.Qh7 (30.Qh7 Kh7 31.Rd1–+). elsh1403 – nektaryna13, kurnik, 2011.

11.a4 Nbd7

12.Ba3 dc4 13.Nc4 Bc4 14.Bc4 Nb6 15.Ba2 Nbd5 16.Qc2 Nc3 17.Qc3 Nd5 18.Qb3 Kh8 19.b5 f5? 20.Bf8+– Qf8 21.Rac1 Qd6 22.Qc4 Rc8 23.Qe2 Re8 24.bc6 bc6 25.Rc5 f4 26.Bd5 cd5 27.Rfc1 Qe6 28.Rc6 Qf5 29.h3 f3 30.gf3 ef3 31.Qf1 Bh6 32.Kh2 Bf8 33.Qg1 Qd7? 34.Qg3+– Rd8 35.Qe5 Bg7? 36.Qe6 Qb7 37.Rc7 Qb2 38.Kg3 Rf8 39.Qe7 (39.Qe7 Rg8 40.Rc8 (40.Kf3?! Rf8 41.Qf8 Bf8+=) 40...Qc1 41.Rc1+–) 1–0. elsh1403 – companys (1645), kurnik, 2011.

12.a5 Ne8 13.b5 f5 14.Qa4 cb5 15.Nb5 f4 16.Ba3 Rf7 17.Bd6 (better is 17.cd5 Bd5 18.Nc3+=) 17...Qg5?? (better is 17...fe3 18.cd5 ef2 (18...ed2? 19.de6 Nd6 20.Nd6+–) 19.Rf2 Rf2 20.Kf2 Bd5–+) 18.Bf4+– Rf4 19.ef4 Qf4 20.cd5 Bd5 21.Nc4 a6 22.Nbd6?? Nd6+= 23.Nd6? Qd6–+ 24.Rac1 Rf8 25.Bg4 Nf6 26.Be2 Nh5 27.Rc5 Nf4 28.Bc4 Bc4 29.Qc4 Kh8 30.d5 Qe5 31.g3 Nh3 32.Kg2 Ng5 33.Rd1?? Qf5 34.Qc2 Qf3 35.Kg1 Nh3 36.Kf1 Nf2 37.Rc8 Nd3 (37...Nd3 38.Kg1 Bd4 39.Qf2 Qf2 40.Kh1 Qf3#; 37...Nd1 38.Ke1 Qf1 39.Kd2 Bh6#) 0–1. elsh1403 – ppss43, kurnik, 2012.

12.b5 a6 13.Qb3 Qe7? (13...dc4!? 14.Bc4 Re8+=) 14.Ba3 Qe8 (14...dc4 15.Bc4 c5 16.Be6 Qe6 17.Qe6 fe6 18.Nde4 b6 19.dc5 Ne4 20.Ne4 Ba1 21.cb6 Rfb8 22.Ra1 ab5 23.ab5 Nb6 24.Nf6 Kf7 25.Nh7 Nc4-/+) 15.Bf8+– Nf8 16.cd5 cd5 17.a5 Qd7 18.Na4 Re8 19.Nc5 Qe7 20.ba6 ba6 21.Ba6 Ng4 22.h3 Nh6 23.Ne6 Ne6 24.Bb7 Rd8 25.Bd5 Ng5 26.f4 Nh3 27.gh3 Qh4 28.Kg2 Nf5 29.Ne4 Rd5 30.Qd5 Ne3–+ 31.Kh2 Nd5 32.a6 Nf4 33.Rf3 Nh3 34.Rh3 Qe4 35.a7 Qe2 36.Kg3?? Qd3 37.Kg2= Qd2?? 38.Kg3 Qc3–+ 39.Kg4 h5 40.Kh4 Bf6# 0–1. elsh1403 – dmitriy (1845), kurnik, 2012.

12.b5 cb5 13.cd5 Nd5 14.Nce4 ba4 15.Ba3+=.

12.b5 Rb8 13.a5 a6 14.b6 Ne8? (better is 14...Re8!?+=) 15.Ba3+– f5 16.Bf8 Bf8 17.Qb3 Nef6 18.Rac1 Kh8 19.Rc2 dc4 20.Bc4 Bc4 21.Nc4 Nd5 22.Ne2 N7f6 23.Rfc1 g5 24.Ne5 Qe7 25.Rc6! Qg7?? 26.Rc7! Nc7 27.Rc7 Qh6 28.Qf7 f4 29.Qb3 Bd6 30.Nf7 Kg8 31.Nh6 (31.Nh6 Kh8 32.Qf7 Rg8 33.Qf6 Rg7 34.Qg7) 1–0. elsh1403 – zase (1605), kurnik, 2011.

12.b5 h6 13.a5 a6 14.ba6 ba6 15.Ba3 Re8 16.Na4 (16.Bd6 dc4 17.Nc4 Bd5+=) 16...Bf8 (better is 16...Qa5!? 17.Nc5 Nc5 18.Bc5 Qc7+=) 17.Bf8+/- Rf8 18.c5 Nh7 (18...Qa5? 19.Nb6 Qc3 20.Na8 Ra8 21.Ra2+–) 19.Nb6 Ra7 20.Nb1 f5 21.Na3 g5 22.Nc2 Nhf6 23.Nb4 Nb8 24.Qa4 Qe8 25.g3 f4 26.ef4 gf4 27.gf4 Bh3-/+ 28.Kh1 Bf1 29.Rf1 Kh8 30.Rg1 Rg8 31.Rg8-/+ Ng8 32.N4d5 Qf7 33.Ne3 Qf4 34.d5?? Qf2–+ 35.Qd4 Rg7 36.Bg4 cd5 37.Nbd5 Nc6 38.Qe4? h5 39.Qf3 Qe1 40.Qf1 Qf1 41.Nf1 hg4 42.Nfe3 Na5 43.Nf5 Rg5 44.Nde3 Kh7 45.Kg2 Kg6 46.Kg3 Rf5 47.Nf5 Kf5 0–1. florenc1330 (1755) – mcferry (1750), kurnik, 2012.

12.b5 Kh8 13.Ba3 Rg8 14.Bd6 Ne8 15.Bg3+/- f5 16.bc6 bc6 17.cd5 cd5 18.Qb3 Ndf6 19.Nb5 Bf8 20.Rac1 Rg7 21.Be5 Bd6? 22.Nd6 Nd6 23.Rc6 Nfe8 24.Bg7 Kg7 25.Qb4 Rb8 26.Qa3 Qe7 27.Rc3 Qg5 28.Rfc1 f4 29.ef4 Qf4 30.Nf1 Nf5 31.Ng3 Nd4+/- 32.Qa1 Kg8+= 33.Rd1 Ne2 34.Ne2+/- Qg5 35.Nd4 Ng7 36.Ne6 Ne6+= 37.Rdc1 Nf4 38.Rc8+/- Rc8 39.Rc8 Kf7 40.Rc7 Ke6 41.g3 Nh3 42.Kf1 (42.Kg2 Nf4 43.Kf1 Nd3+/-) ½–½. Larsen,Andreas – Vik,Roger, Tromsoe op, 1998.

6.0-0 Bg4

7.a3 Bf3 8.Bf3 c6 9.c4 Nbd7 10.d4 Rb8 11.Nd2 e6 12.Rb1 Qb6 13.c5 dc5 14.dc5 Qd8 15.Be2 Qc8 16.Qc2 a6 17.Rfd1 Ne5 18.Be5 Ra8 19.Bd6 Re8 20.Nf3 Ng4 21.h3 Nf6 22.e4 Nd7 23.Nd2 Rd8 24.f4 b6 25.f5 ef5 26.ef5 Ne5 27.fg6 hg6 28.Rf1 Qd7 29.Ne4 bc5 30.bc5 a5 31.Nf6 1–0. aniabielak – aldimeola, kurnik, 2012.

7.c4 Nbd7 8.Nc3 c5 9.a3 a5 10.Qb3 ab4 11.ab4 Ra1 12.Ra1 cb4 13.Qb4 Nc5 14.d4 Bf3 15.gf3 (15.dc5?! dc5 16.Qc5 Be2 17.Ne2 Qd2 18.Bf6 Bf6=) 15...Ncd7 16.Qb7 e5 17.Ne4 Ne4 18.fe4 ed4 19.ed4 Qg5 20.Kh1 (20.Kf1 Nf6 21.e5 de5 22.de5 Nh5+/-) 20...Nf6 21.e5+/- de5 22.de5 Ng4 23.Bg4 Qg4 24.Qg2 Qe2 25.Rb1?? Qc4?? 26.Qf1 Qe4 27.Kg1?? Be5?? 28.Re1?? Qg4–+ 29.Kh1 Qf3 30.Kg1 Bb2 31.Re3 Qg4 32.Rg3 Qe4 33.Qb5 Bd4 34.Qc4 Qe1 35.Kg2 Qf2 36.Kh3 Qf5 37.Kg2 Be5 38.Rf3 Qg5 39.Kh1 Bg7 40.Rf2 Qc1 41.Qc1+– Be5 42.Qf1 Bg7 43.Qd3 h5 44.h4 Kh7 45.Ra2 Re8 46.Ra5 Re1 47.Kg2 Re8 48.Rh5 Kg8 49.Rd5 Rb8 50.Rd7 Rb2 51.Kf3 Rb6 52.Qd5 Rf6 53.Kg4 Kh7 54.h5 gh5 55.Qh5 Kg8 56.Rd8 Bf8 57.Qc5 Rg6 58.Kf5 Kg7 59.Qf8 Kh7 60.Qh8# 1–0. elsh1403 (1655) – reiazul, kurnik, 2012.

7.d4 Nbd7 8.Nbd2 e5 9.de5 de5 10.Ne5 Be2 11.Qe2 Ne5 12.Be5 Qe7 13.Bc3 Rad8 14.Nf3 c5 15.bc5 Qc5 16.Bd4 Qc6 17.Ba7 Ne4 18.Rab1 Nc3 19.Qe1 Nb1 20.Qb1 Ra8 21.Nd4 Qa6 22.Bc5 Qa2 23.Bf8 Bf8 24.Qb7 Rb8 25.Qb8 1–0. Orang4Utan (1820) – jogl0606 (1845), lichess.org, 2021.

7.h3 Bf3

8.gf3 c5+=.

8.Bf3 c6 9.b5 cb5 10.Bb7 Nbd7 11.Ba8 Qa8 12.a4+/-.

8.Bf3 c6 9.b5 Qb6 10.c4 cb5 11.cb5 Qb5 12.Bc3 Nd5 (12...Qd7 13.Qb3 Nc6 14.Na3+=) 13.Na3 (better is 13.Bg7 Kg7 14.Na3+=) 13...Qc6?? (better is 13...Nc3 14.Nb5 Nd1 15.Bb7 Ba1 16.Ba8 Nf2 17.Kf2 Bf6 18.Na7 Na6=) 14.Bg7+– Kg7 15.Qb3 e6+/- 16.Qb2 Kg8 17.Rfc1 Qd7 18.Rab1 b6 19.e4 Ne7 20.e5 d5 21.Nb5 Nbc6 22.a3 Nf5 23.g4 Nfe7 24.d4 Rfc8 25.Nd6+= Rc7 26.Qd2 Na5 27.Qf4 Rc1 28.Rc1 Rf8 29.h4 Nb3 30.Rc3 Na5 31.h5 gh5 32.gh5 Nf5?? 33.Qg5 Ng7 34.h6 f5 35.Bh5 Kh8 36.hg7 Qg7+– 37.Nf7 Kg8?? 38.Nh6 (38.Nh6 Kh8 39.Rg3 Qg5 40.Rg5+–; 38.Qg7 Kg7 39.Rg3) 1–0. elsh1403 – milosobilic (1605), kurnik, 2011.

8.Bf3 c6 9.b5 Qc7 10.c4 Nbd7 11.d4 d5 12.cd5 cd5 13.Nc3 e6 14.Rc1 Rac8?? (14...Qa5 15.Be2=) 15.a4?? (15.Nd5 Qd6 16.Nf6 Nf6 17.Bb7 Rb8+–) 15...b6? (better is 15...Qa5=) 16.Nd5 Qb8? 17.Ne7 Kh8 18.Nc8 Rc8 19.Qd3 Rd8 20.Rc2 Nf8 21.Rfc1 h5 22.Ba3 N8h7 23.Rc7 Kg8 24.Rb7 Qa8 25.Rf7! Kf7 26.Ba8 Ra8 27.Rc7 Kg8 28.Qc3 Nf8 29.Rc8 Rc8 30.Qc8 N6d7 31.Bf8 Nf8 32.Qc7 g5 33.Qa7 e5 34.Qb6 ed4 35.ed4 Kh7 36.a5 Ng6 37.a6 Nf4 38.a7 Ne2 39.Kh2 Bd4 40.Qb7 Kg6 41.a8Q Be5 42.g3 h4 43.Qc6 Bf6 44.Qc2 Kg7 45.Qe2 hg3 46.fg3 g4 47.Qg4 Kf7 48.Qf5 Ke7 49.Qf6! Kd7 50.Qb7 Ke8 51.Qh8 (51.Qbc6) 1–0. elsh1403 – wgwl (1685), kurnik, 2011.

8.Bf3 c6 9.c4 Nbd7 10.d4 Nb6 11.Nd2 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Qa8 15.c5 Qa4? (better is 15...Nbd5+=) 16.cb6+– Qb4 17.Ne4 Qb6 18.Qc2 d5 19.Nc5 Qc7 20.Rb1 b6 21.Na4 Rb8 22.Be2 h5 23.Bb5! c5 24.dc5 bc5 25.Qc5 Qa5?! 26.Bc3 Qa8 27.Be5 Ne4?? 28.Qd4+– Be5 29.Qe5 Rb5 30.Rb5 Qa4 31.Rb8 Kh7 32.Qh8 1–0. horacyad2010 – sami11, kurnik, 2011.

8.Bf3 Nfd7?? 9.Bb7 (better is 9.Bg7 Kg7 10.Bb7+–) 9...c6?? (better is 9...Bb2 10.Nc3 Ba1 11.Qa1 Nb6–+) 10.Ba8 (10.Bg7 Kg7 11.b5 Nb6 12.Ba8 Na8+–) 10...Qc7?? (better is 10...Bb2 11.Nc3 Ba1 12.Qa1 Nb6-/+) 11.Qf3 Bb2-/+ 12.Nc3 Ba1 13.Ra1 Ne5 14.Qe4 Nbd7+= 15.f4 d5 16.Qd4= Nc4 17.Nd5 cd5 18.Bd5 Ndb6 19.Bc4 Qc4 20.Qb2 Rc8 21.c3 Qd3 22.Rd1 Nc4 23.Qc1 Rd8 24.Kf2 Nd2 25.Ke1?? Qe3 0–1. erisonpassos – 79wojcik, kurnik, 2011.

6.a3 c5

7.0-0 cb4 8.ab4 a6 9.c4 Nbd7 10.d4 e6 11.Nc3 Nb6 12.c5 Nbd7 13.cd6 Ne8 14.Ne5 (14.Ne4 Ndf6 15.Nf6 Nf6+/-) 14...Nd6 (14...Ne5!? 15.de5 Be5=) 15.f4 Nb6 16.Bf3 Nd5 (better 16...f6!? 17.Nd3 Nbc4=) 17.Nd5+/- (17.Bd5?! ed5 18.Qf3 Nc4 19.Nc4 dc4=) 17...ed5 18.Bd5 Rb8 19.Bf3 (19.Rc1 Be6 20.Be6 fe6+/-) 19...Nf5 (19...Re8 20.Re1+/-) 20.Qe2 (20.Qb3 Nd6+-) 20...Bd7 (better 20...Re8+/-) 21.Rac1?? (better 21.Rfd1+-) 21...Bb5= 22.Nc4 (22.Qf2!? Bf1 23.Rf1=) 22...Re8=+ Attacks the backward pawn on e3 23.Qc2? (better 23.e4!?=+) 23...Bc4 (23...Ne3?! 24.Ne3 Bd4 25.Rfd1 Be3 26.Kh1=+) 24.Qc4 Ne3 (24...Re3?! 25.Bd5 Re7 26.Rfe1-/+) 25.Qb3 (25.Qd3!? Nf1 26.Rf1-+) 25...Nf1 26.Rf1 (26.Kf1 Qh4 (26...Bd4?! 27.Rd1+=) 27.g3 Qh2-+) 26...Bd4 27.Kh1 Bb2 28.Qb2 Rc8 (28...Qd3 29.Qa1-+) 29.Qb3? (29.Bb7 Rb8 30.Ba6 Qd6-+) 29...b5 (29...Qd2 30.Qd1 Qb4 31.f5-+) 30.Bd5 Qe7 31.f5 (31.Qb1 Qd6 32.Rd1 Qf6-+ (32...Qf4?! 33.Rf1 Qc7 34.Rf7 Qf7 35.Bf7 Kf7 36.Kg1-+)) 31...Qf6 (31...Rc1 32.Bf7 Kf8-+ (32...Qf7?! 33.Qf7 Kf7 34.fg6 Kg6 35.Rc1=+)) 32.Bf3 (32.Qb1 g5-+) 32...g5 (32...Qf5 33.Qd1 Rcd8 34.Qa1-+) 33.Qd1 (33.Qb1 Rc4-+) 33...Kg7 (better 33...Rc4-+) 34.Qe2 (34.Qd3 Rc4 35.Qb1 Qc3-+) 34...h6 (better 34...Re2 35.Be2 Qb2 36.f6 Kg8-+) 35.Qf2 (35.Qa2 Rc4-+) 35...Rcd8 (35...Rc4 36.g4-+) 36.Qg3 (36.Qc2 Rd4-+) 36...Rd4 37.h3 Rf4 38.Qf2 Qf5 (better 38...Rb4 39.Qd2 Rf4 40.g4-+) 39.g4 (39.Qd2 Ree4!-+) 39...Qf6 40.Qg2 (40.Kh2-+) 40...Re3 41.Kh2 Ref3 42.Rf3 Rf3 43.Kh1 (43.Kh1 Re3 44.Kg1 Re1 45.Kh2 Qf4 46.Qg3 Re2 47.Kh1 Qg3 48.h4 Qe1). CronusCR (2265) - kovadlinka (2305), Hourly HyperBullet Arena, lichess.org, 2017. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Nf3 d6 6.Be2)

7.0-0 Qb6=.

7.b5 a6 8.0-0=.

7.b5 Bg4 8.0-0 (8.h3 Bf5=) 8...Qb6 (8...a6 9.a4=) 9.c4 (9.Nc3 a6=) 9...Rd8 (9...a6 10.Nc3=) 10.Nc3 Nbd7 (10...a6 11.Rb1=) 11.a4 Nf8 (11...Qa5 12.d3=) 12.d3 (12.a5 Qc7+=) 12...Ne6 (12...Qa5 13.h3 Bd7 14.Qc2+=) 13.h3 (13.a5 Qc7+/-) 13...Bf3+= 14.Bf3 (worse is 14.gf3 d5 15.a5 Qc7 16.cd5 Nd5 17.Nd5 Rd5 18.Bg7 Ng7=) 14...Ng5 (14...a5 15.Rb1+=) 15.Be2 (15.a5 Nf3 16.Qf3 Qc7+/-) 15...e5 (15...d5 16.a5 Qc7 17.f4+=) 16.Qd2 (16.a5 Qc7+/-) 16...d5+= 17.e4 Bh6 18.Qc2 (18.f4!? Ne6 19.a5+=) 18...de4= 19.de4 (19.Rfe1 ed3 20.Bd3 Qd6=) 19...Rd2 20.Qb1 Nge4 21.Ne4 Re2 22.Ng3+= Rd2 23.Bc1 Rd4 24.Bh6+– Rc4 25.Qb2 Nd7 26.Rfd1 Rb4 27.Qc2 Qe6 28.Rd2 Rc4 29.Qd1 Rd8? 30.Rc1 Rd4 31.Be3 Rd2 32.Qd2 c4 33.Rd1 f6 34.Ba7 Ra8 35.b6 Nb6 36.Bb6 Qb6 37.Qd5 Kf8 38.Qc4 Re8 39.Qd5 Qb2 40.Ne4 Kg7 41.Qd7 (41.Qd7 Kf8 42.Qh7 Qb3 43.Rd7 Qb1 44.Kh2 Qh1 45.Kh1 Re7 46.Qe7 Kg8 47.Qd8#) 1–0. De Kruif,K (2085) – Goman,C, 29th Guernsey Open, Les Dicqs GCI, 2003.

7.bc5 dc5 8.0-0 b6 9.d3 Bb7 10.Nbd2 Nc6 11.c4 Re8 12.Qc2 e5 13.Rfe1 Qc7 14.Bf1 Rad8 15.Rad1 Bc8 16.Nb3 Bg4 17.Be2 e4 18.de4 Ne4 19.h3 Bf5 20.g4? Bc8?? 21.Bg7 Kg7 22.Rd8 Rd8?? 23.Qe4+– Bb7 24.Qc2 Kg8 25.Rd1 Re8 26.Qc3 h5 27.gh5 Kh7 28.hg6 fg6 29.Ng5 Kh6 30.h4 Ne5 31.Nd2 Qc6 32.Ndf3 Ng4 33.Rd5 Qc7+– 34.e4 Bd5 35.ed5 Qe7 36.Qd3 Qe2= 37.Qe2 Re2 38.d6 Re8?? 39.Kg2 Rd8?? 40.Kg3 Rd6? 41.Kg4 Kg7 42.Ne5 Rd2 43.f4 Ra2 44.Ne6 Kf6 (44...Kf6 45.Nf8 Ra3 46.Nfg6 Ra1+–). exp2005 – potkolienka, kurnik, 2012.

7.bc5 dc5 8.0-0 Qc7 9.d3 Bg4 10.h3 Bf3 11.Bf3 Nc6 12.Nd2 Rad8 13.Qc1 a6 14.c4 (14.a4 b6=) 14...Ne5 15.d4 cd4 16.ed4 Nf3 17.Nf3 Rc8 18.c5 Rfd8 19.Rd1 Nd5 20.Qd2 Qf4 21.Qf4 Nf4 22.Kf1 Rd5 23.Rab1 Rcd8 24.Rd2 R8d7 25.h4 Ne6 26.Bc3 Nc5 27.dc5 Bc3 28.Rd5 Rd5 29.Rb7 Rc5 30.Re7 Bf6 31.Re8 Kg7 32.Re3 a5 33.a4? Rc1 34.Ke2 Ra1 35.Re4 Ra2 36.Ke3 Ra3 37.Kf4 h6 38.Rc4 Ra2 39.Kg3 Ra3 40.Kg4 h5 41.Kf4 Rb3 42.Nh2? Rb4 43.Re4 Bh4 44.Nf3 Bf6 45.Nd2 Rb2 46.Re2 Bc3 47.Ke3 Bd2 48.Rd2 Rd2 49.Kd2 Kf6 0–1. exp2005 – goobar137, kurnik, 2011.

7.bc5 dc5 8.d3 Qc7 9.0-0 Nc6 10.Nbd2 b6 11.c4 Bb7 12.Nb3 Rad8 13.Qc2 Ng4 14.h3 Nf6 15.Rfd1 e5 16.Nfd2 Rd7 17.Bf3 Rfd8 18.Ne4 Ne7 19.Nf6 Bf6 20.Bb7 Qb7 21.d4 ed4-/+ 22.ed4 cd4 23.Rd3 Nc6 24.Rad1 Qc7 25.Qb1 Qf4 26.g3 Qf5 27.Qa1? Qh3 28.Nd4 Nd4 29.Bd4 Bd4 30.Rd4-/+ Rd4 31.Rd4 Rd4 32.Qd4 Qc8 33.Kg2 h5 34.Kf3 Qc7 35.Qd5 Kg7 36.Ke4 f6 37.f4 Qe7–+ 38.Kf3 Qf7 39.Qd4 Qe7 40.Qc3 Qb7 41.Kf2 Qc6 42.Qb4 Qc5 43.Qc5 bc5 44.Ke3 Kf7 45.Ke4 Ke6 46.a4 g5 47.f5 Kd6 48.Kf3 Ke5 49.g4 hg4 50.Kg4 Ke4 51.a5 a6 52.Kg3 Kf5 53.Kf3 g4 54.Ke3 Kg5 55.Ke4 f5 56.Kd5 g3 57.Kc5 g2 58.Kb6 g1Q 59.c5 f4 60.Ka6 Qc5 61.Kb7 Qa5 (61...Qa5 62.Kc6 Qa6 63.Kc5 Qa7 64.Kc4 Qf7 65.Kd4 f3 66.Kd3 f2 67.Ke2 f1Q 68.Kd2 Q7c4 69.Ke3 Qfe2; 61...f3 62.a6 f2 63.a7 f1Q 64.a8N Qfb5 65.Nb6 Qbb6 66.Ka8 Qcc6) 0–1. exp2005 – markos0410, kurnik, 2011.

7.bc5 dc5 8.d3 Nc6 9.0-0 a6 10.Nbd2 b5 11.c4 Na5 12.Qc2 Qb6 13.Rab1 Rb8 14.d4 Nd7? (better is 14...Qb7!? 15.cb5 ab5 16.dc5 Bf5+–) 15.cb5 ab5 16.dc5 Qc5 17.Qc5 Nc5 18.Bg7 Kg7 19.Rb5 Rb5 20.Bb5 Ba6 21.Ba6 Na6 22.Rc1 Rb8 23.Kf1 Nb3 24.Nb3 Rb3 25.a4 Nb4 26.Nd4 Ra3 27.Rc4 Nd3 28.Nb5 Ra2 29.f3 h5 30.e4 Nf4 31.g3 Nh3 32.f4 Rh2 33.Rc7 e6? 34.Nd6+/- Ra2 35.Rf7+– Kg8 36.Ra7?? h4 37.gh4 Rf2 38.Ke1 Rf4 39.e5 Rd4 40.a5 Ra4 41.a6 Nf4 42.Ra8 Kg7 43.a7 Nd3+= 44.Kd2 Ne5 45.Nb5 Nc6 46.Kc3 Ra5 47.Kc4 Kf7? 48.Kc5 (48.Kc5 Na7 49.Ra7 Ra7 50.Na7=) 1–0. exp2005 – mietz, kurnik, 2011.

6.a3 Nbd7

7.0-0 b6 8.d4 Bb7 (8...a5 9.b5+=) 9.Nbd2 (9.c4 a5+=) 9...e5 (9...c5 10.c4=) 10.de5+= de5 (10...Ng4 11.Rb1 Nge5 12.Ne5 de5 13.Bf3+=) 11.Ne5+/- Ne5 12.Be5 Ne4 (12...Qe7!? 13.Bf3 Bf3 14.Nf3 a5+/-) 13.Bg7 Kg7 14.Ne4 Be4 15.c4 (better is 15.Bd3 Qh4 16.Be4 Qe4 17.Qd3 Qd3 18.cd3+/-) 15...Qg5?? (better is 15...Re8+/-) 16.Qd4+– Qf6 17.Qe4 Rfe8 18.Qc2 Re5 19.Rad1 c5 20.bc5 Rc5 21.Rd5 Rc6 22.Rc1 Rac8 23.Qc3 a6 24.Qf6 Kf6 25.a4 Ke6 26.e4 Rd6 27.Bg4 f5 28.ef5 gf5 29.Bf5 Ke7 30.Bc8 (30.Bc8 Rd5 31.cd5+–) 1–0. redketchuplover (2195) – burrango (1965), net–chess.com, 2008.

7.0-0 Nb6 8.Nc3=.

7.0-0 e5 8.d4 Re8 9.de5 Ng4 10.c4 de5 (10...Nde5 11.Nd4=) 11.Nc3 e4 12.Nd2 Ngf6 13.Qc2 The pressure on e4 grows 13...Qe7 14.Rad1 c6 15.h3 Nf8 16.Rfe1 h5 17.Bf1 (17.Nb3 N8d7+/-) 17...Bf5 (17...N8d7 18.Nb3+=) 18.c5 Rad8 (18...b5 19.Nb3+/-) 19.Nc4+/- N8h7 20.Nd6 Rf8 21.Nf5 gf5 22.Ne2 Bh6 (better 22...Nd5!?+/-) 23.Nd4+- Rd5 (23...Qd7+-) 24.Bc4 Re5 25.Ne2 Nd5 (25...Re8 26.Nf4 Bf4 27.ef4+-) 26.Be5 Qe5 27.Bd5 cd5 28.Qc3 (28.Qa4 b6+-) 28...Qe6 29.Nd4 Qg6 30.Nb5 (30.c6 Rc8 31.cb7 Rc3 32.b8Q Nf8+-) 30...Bg7 (30...Ng5 31.Kh1 f4 32.Qe5+- (32.Na7?! f3 33.Rg1 Qe6+/-)) 31.Qd2 (31.Qb3 Nf6+-) 31...Ng5 (31...Qa6 32.Nd6 Nf6 33.Nf5+-) 32.Kh1 Rd8 33.Nc7 (better 33.Nd6!? b6+-) 33...d4 34.ed4 Bd4 35.Nb5 Bf6 (35...Ne6 36.Nd4 Rd4 37.Qc1+-) 36.Nd6 (36.Qf4 Ne6 37.Rd8 Bd8+-) 36...Ne6 37.Qd5?? (better 37.Qe3+-) 37...Nf4-/+ 38.Qf5?? (better 38.Qf7 Qf7 39.Nf7 Kf7 40.Rd8 Bd8 41.Rd1-+) 38…Qg2 0-1. black_bishop_88 (2500) - Ashruh (2350), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.Nf3)

7.d4 c6 8.0-0 a6 9.Nbd2 b5 10.c4 Rb8 11.c5 d5 12.Qc2 Re8 13.e4 (13.a4!?+/-) 13...de4= 14.Ne4 Ne4 15.Qe4 Nf6 16.Qc6?? (16.Qh4 Nd5=) 16...Bb7?? (better 16...Nd5 17.Bb5 Rb5-+) 17.Qb6= Qb6 18.cb6 Bd5 19.Ne5 Rb6 20.Bf3 (20.Rfc1 Rd8=) 20...Bf3=+ 21.Nf3 Rd6 22.Rfe1 e6 23.Rad1 Red8 24.Ne5 Nd7 25.Nd7 (better 25.Rc1!?=) 25...R8d7 26.Re4 e5 (26...f5 27.Re2-/+) 27.d5 (27.Rde1!? f5 28.Re5 Be5 29.Re5-/+) 27...Rd5 28.Rd5 Rd5 29.g3 f5 30.Re2 e4 31.Bg7 Kg7 32.Rc2 Rd6 33.Rc7 Kh6 34.Kg2? (better 34.Rc3-+) 34...Rd3 35.h4 (35.g4 Ra3 36.gf5 gf5-+) 35...Ra3 36.Rc6 Ra4 37.Kh3 Rb4 38.Ra6 Rb2 39.Kg2 (39.Rb6 Kh5-+) 39...e3 40.Kf1 (40.Re6 ef2 41.Re7 b4-+) 40...Rf2 41.Ke1 Rg2 42.Rb6 Rb2 (better 42...Kh5 43.Rb5 Kg4-+) 43.Rb5 (43.Re6 Rb4 44.Ke2-+) 43...Rb5 44.Ke2 Rb3 (better 44...Re5 45.Kd3-+) 45.Kf3 Kh5 46.g4 fg4 47.Kg3 (47.Ke2 g3 48.Kf3 Rb1 49.Ke4 e2 50.Kd5 g2 51.Kc5 g1Q 52.Kd6 Qd4 53.Kc6 e1Q 54.Kc7 Qec3) 47...e2 (47...Rb6 48.Kg2 Rf6 49.Kh2 e2 50.Kg2 e1Q 51.Kh2 Rf2 52.Kg3 Qe3) 48.Kg2 (48.Kf2 Rb2 49.Ke3 e1Q 50.Kd4 Rd2 51.Kc4 Qc1 52.Kb4 Rb2 53.Ka4 Qa1) 48...e1Q 49.Kh2 Rb2 0-1. Gehaktbalmetjus (2095) - PayTheBill (2310), Rated Bullet game, lichess.org, 2019.

7.0-0 c5

8.b5 a6 9.Nc3 ab5 10.Nb5 Nb6=.

8.b5 a6 9.c4 ab5 10.cb5 d5 11.d4 c4 12.Nc3 e6 13.a4 b6 (13...Qa5 14.Qc2=) 14.Ba3+= Re8 15.Qc2 Bb7 16.Rac1 Bf8 17.Bf8 Kf8 18.h3 Qe7 19.Qb2 Kg8 20.Ra1 e5 21.Rfd1 ed4 22.Nd4 Nc5 23.Bf3 Nd3 24.Qb1? Ne5?? 25.Be2 Nfd7 26.Bf3 Qd6 27.Be2 Nc5 28.Qb4 Qf6 29.Nc6? Nc6 30.bc6= Qc6 31.Nd5+= Nd3 32.Bd3 Qd5 33.Bf1 Qc6 34.Qb5?? Qb5+= 35.ab5 c3 36.Ra8 Ra8+= 37.Rc1 Ra3 38.Bd3 Bd5 39.Bc2 Kf8 40.f3 Ke7 41.Kf2 Kd6 42.Rd1? Kc5 43.e4 Bc4 44.Ke3 Kb5 45.Rb1 Kc5 46.Bd3?? c2 47.Rc1 Rd3 48.Kf2 Bb3 49.Ke2 Kd4 50.Ra1 Rd1 51.Ra4 Ba4 52.f4 Ke4 53.g3 Bb5 54.Kf2 Rd2 55.Ke1 Ke3 56.g4 Rd1 (56...c1Q) 0–1. erisonpassos – maskarado, kurnik, 2011.

8.b5 a6 9.c4 ab5 10.cb5 Re8 11.d3 b6 12.Nbd2 Bb7 13.a4 d5 14.Ra3 Nh5 (14...e5 15.Qc2=) 15.Bg7 Ng7 16.Nb3 e5 17.a5 Nf5 18.a6 Nd6 19.Ra1 Bc8 20.Qd2 Nb5 21.d4 Nc7 (worse is 21...Ba6 22.Ra6 Ra6 23.Bb5+/-) 22.dc5 Nc5 (worse is 22...Ba6 23.Ba6 Na6 24.c6+=) ½–½. JM (2120) – Boden,Daniel (1960), BdF JU–S39 remoteschach.de, 2002.

8.b5 a6 9.c4 Ng4 10.Nc3 (10.Bg7 Kg7 11.d4 ab5 12.cb5 Ngf6+=) 10...Nge5 (10...ab5 11.cb5 e5 12.Qc2=) 11.Qc2 (11.d4 Nf3 12.Bf3 Nb6=) 11...Nb6 (11...Nf3 12.Bf3 Ne5=) 12.Ne4 (better is 12.Ne5!? Be5 13.a4+=) 12...Nf3-/+ 13.Bf3 (13.gf3 Bb2 14.Qb2 f5-/+) 13...Bb2 14.Qb2 Nc4 15.Qb3 (15.Qc3 ab5 16.a4 Be6 17.ab5 Qd7-/+) 15...Ne5 (15...Be6 16.Qc3 ab5 17.d4 Ra3 18.Ra3–+) 16.Be2-/+ Be6 (16...c4 17.Qb4 ab5 18.Qb5-/+) 17.Qc3 ab5 (17...Bd5 18.f4 Be4 19.fe5 ab5 20.ed6 ed6 21.Bb5-/+) 18.Bb5 (18.Nc5 dc5 19.Qe5 Qd2 20.Bb5 Qd6-/+) 18...Qa5-/+ 19.Qa5 (19.f4 Qb5 20.fe5 Bf5+=) 19...Ra5 20.a4 Bc4 21.Bc4 Nc4 22.d3 Ne5 23.d4 cd4 24.ed4 Nc6 25.d5 Rd5 26.Nc3 Ra5 27.Rfc1 Nd4 28.Rcb1 Rc8 (28...Rc8 29.Nd1 Rc7–+) 0–1. Wenk,Torsten – Hartmann,Markus, Westpfalz op, 1998.

8.b5 d5 9.a4=.

8.Nc3 a6 9.bc5 Nc5 10.d4 Nce4 (10...Ncd7 11.e4=) 11.Ne4+= Ne4 12.Bd3 (12.c4 d5+=) 12...d5 13.Nd2 Nd6 (13...Nc5 14.Rb1 Nd3 15.cd3=) 14.c4+= dc4 15.Nc4 b5 16.Nd6 Qd6 17.Bc3 Bb7 18.Qg4 Rac8 19.Bb4 Qf6 (19...Qd8 20.Rac1=) 20.Rac1 (20.Qd7 Qc6 21.Qc6 Bc6 22.Be7 Rfe8+/-) 20...h5 21.Qg3 Rfe8= 22.Be2 e5 23.de5 Qe5 24.Rc8 Rc8 25.Qh3 Rc2 26.Bf3 Bc8 27.Qh4 Bf6 28.Qe4 Bf5 29.Qe5 Be5+= 30.Bb7 Bc8 31.Bc8 Rc8 32.Rd1 Kg7 33.g3 h4 34.gh4 Rc2 35.Rd2 Rc1 36.Kg2 Bc3 37.Bc3 Rc3+= 38.Rd6? Ra3-/+ 39.Rb6 Ra4 40.Kf3 b4 41.Ke2 Ra2 42.Kd3 a5 43.Kc4? Rf2 44.Rb5 Rh2 45.Ra5 Rh4 46.Kb3 Re4 0–1. erisonpassos – nektaryna13, kurnik, 2011.

8.c4 Qb6=.

8.bc5 Nc5 9.d3 Na4 10.Bc1 Ng4 11.d4 Nb6 12.h3 Nf6 13.c4 Qc7 14.Nbd2 Bf5 15.Bb2 Rac8 16.Rc1 Qd7 17.Nh2 Na4 18.Qb3 Be6 19.d5 Bf5 20.g4 Be4?? 21.f3?? Nb2 22.Qb2? Nd5?? 23.Qa2 Ne3-/+ 24.fe4 Nf1 25.Nhf1 Qe6 26.Bf3 Qe5 27.Kg2 b6 28.a4 f5 29.ef5 gf5 30.gf5 Qf5 31.a5 Qg5 32.Kf2 Bd4 33.Ke2 Qe5 34.Kd1 Rf3?? 35.Nf3+/- Qh5 36.N1d2 Be3 37.c5 Kf8? 38.Ke2?? Bd2 39.Qd2 Rc5 40.Rc5 dc5 41.Qd8 Kf7 42.Ke3 Qh6 43.Ke2 Qe6 44.Kf2 Qa2 45.Kg3 Qa3 46.Qd5 Ke8?? 47.Qa8+– Kd7 (47...Kd7 48.ab6 Qf3 49.Kf3 ab6 50.Qb7 Ke6 51.Qb6 Kd5 52.Qd8 Kc6 53.Qe7 h6+–). exp2005 – cincottorox (1610), kurnik, 2011.

8.bc5 Nc5 9.d3 Bg4 10.Nbd2 Rc8 11.c4 b6 12.h3 Bd7 13.d4 Nce4 14.Ne4 Ne4 15.Bd3 Nf6 16.Rc1 e6 17.Nd2 d5 18.cd5 Nd5 19.Ne4 Qe7 20.Qb3 Qh4 21.Nd6 Rc1 22.Rc1 Qe7 23.Ne4 f5 24.Ng3 Qe8 25.Bc4 Ba4 26.Qd3 Nf6 27.Ba2 Qd7 28.Qc4 Bb5? 29.Qe6+– Qe6 30.Be6 Kh8 31.Rc7 a6 32.d5 Rd8 33.Bf6 Bf6+/- 34.Rb7 Bc4 35.Rb6 Bd5? 36.Bd5 Rd5 37.Rf6 a5 38.Ra6 Kg7 39.Ne2 Kh6 40.Nd4 Rc5 41.Kh2 Rd5 42.Ra7 Rc5 43.g4 fg4 44.hg4 Rd5 45.Kg3 Rc5 46.f4 Rd5 47.Kh4 Rc5 48.g5 (48.g5 Rg5 49.fg5#) 1–0. exp2005 – jurand55, kurnik, 2011.

6.a3 e5

7.0-0 a5 8.d4 e4 9.Nfd2 ab4 10.ab4 Ra1 11.Ba1 d5 12.c4 c6 13.cd5 cd5 14.Nc3 h5 (14...Be6 15.Qb3=) 15.Qb3+= Be6 16.b5 Nbd7 17.Na4 Nb6 18.Nc5 Bc8 (18...Qc7 19.Ne6 fe6 20.Bb2+=) 19.Bc3+/- Re8 20.Ba5 Qd6 21.Bb4 Qb8 22.Rc1 Bf8 23.Qa3 (23.Ba5 Qa7 24.Qc3 Bg4 25.Bg4 Ng4+/-) 23...Bg4+= 24.Bf1 Bf5 25.Na4 Ng4 26.g3 Bb4 27.Qb4 Na4 28.Qa4 h4 29.b6 hg3 30.hg3 Ne3 31.fe3?? (31.Bb5 Rf8 32.Rc7= (32.fe3 Qg3 33.Kf1 Bh3 34.Ke2 Bg4 35.Nf3 Bf3 36.Kd2 Qf2 37.Kc3 Rc8 38.Bc4 Rc4 39.Qc4 Qe3 40.Kb4 dc4 41.Rc4 Qd2 42.Ka3 e3-+)) 31...Qg3-+ 32.Bg2 Qe3 33.Kh1? (33.Kf1 Re6 34.Rc8 Kh7 35.Qa8 Qd4 36.Rf8 Qd2 37.Rf7 Kh6 38.Qb8-+) 33...Re6 (better 33...Rd8 34.Qd1 Kg7-+) 34.Nf1?? (better 34.Rc8 Kh7 35.Nf1 Qh6 36.Kg1-/+) 34…Qc1 (34...Qc1 35.Qa8 Kg7 36.Qb7 Qh6 37.Kg1 e3-+) 0-1. Gehaktbalmetjus (2095) - BTR-07 (2315), Rated Blitz game, lichess.org, 2019.

7.0-0 b6 8.d3 Bb7 9.Nbd2 Nbd7 10.e4 Nh5 11.Re1 Nf4 12.Bf1 Qe7 13.d4 c5 14.de5 de5 15.Nc4 Rad8 (15...Ba6 16.g3 Bc4 17.Bc4+=) 16.Qd6+= e5 seems the pivot of the position 16...Qd6 (16...Qe6 A) worse 17.Nfe5 Nh3 18.gh3 Ne5 19.Qe6 A1) 19...fe6?? 20.Be5 (20.Ne5?! Rd2 21.Re2 Re2 22.Be2 Be4+-) 20...Be5 21.Ne5+-; A2) 19...Nf3 20.Kh1 fe6-/+; B) 17.Qe6 Ne6 18.Nfe5 (worse 18.Be5 Ne5 19.Nfe5 Rfe8=+; 18.Nce5?! Rfe8+/-) 18...Ne5 19.Be5 (19.Ne5?! Nd4 20.Bd4 Rd4=) 19...Be5 20.Ne5+/-) 17.Nd6+/- Ba8 18.Rad1 (18.Bc4 h6+/-) 18...Ne6 (18...h6 19.Bc4 g5 20.Nf7 Rf7 21.Be5+-) 19.Bc4 Nd4? (better 19...Bf6+/-) 20.Ng5+- b5 21.Bf7 Kh8 (21...Rf7 22.Ngf7 Rf8 23.c3+-) 22.Bd4 (22.Be6 Bf6 23.Ngf7 Kg7 24.Nd8 Rd8 25.Bd7 Rd7 26.bc5 Kf8 27.Bd4 ed4+-) 22...ed4 23.Ne6 (23.Ba2 Ne5 24.bc5 Rf6+-) 23...Ne5 (23...cb4 24.Nd8 Rd8 25.f4+-) 24.Nd8 Rd8 25.bc5 Rd6 (25...Bf8 26.Rd4 Bd6 27.cd6 (27.Rd6?! Nf7 28.Rd8 Nd8+-) 27...Nf7 28.e5+-) 26.cd6 Nf7 27.e5! Be5 (27...Ne5 28.Rd4 Decoy (28.Rd4 Interception); 27...Be5 28.d7 Passed pawn) 28.Re5! Ne5 29.Re1 (29.Rd4?! Nd7+/-) 29...Nc6 (29...Nf7 30.d7 Bc6 31.Re7 Bd7 32.Rd7+- (32.Rf7?! Bf5+-)) 30.Re8 Kg7 31.Ra8 Kf6 (31...Kf7 32.Rc8 Ne5 33.Rc5+-) 32.Rc8 (better 32.Re8!? a5+-) 32...Ne5 33.Rc5 a6 (33...Nf7 34.d7 Ke6+-) 34.Re5! (34.Re5 Ke5 35.d7+-) 1-0. Grinberg,E (2490) - Injac,Teodora (2290), Titled Tuesday, 2020. (=1.e3 Nf6 2.a3 g6 3.b4 Bg7 4.Bb2 0-0 5.Nf3 d6 6.Be2)

7.0-0 b6 8.d3 c5 9.c4 cb4 (9...a6 10.Ng5=) 10.ab4+= a5 11.ba5 ba5 12.e4 (12.Nc3 Nc6+=) 12...Nc6= 13.Ba3 Nb4?? (better 13...Ne8+=) 14.Bb4+– Bd7 Black prepares the advance a4 (14...Nh5 15.Bd2+–) 15.Bc3 (15.Bd6!? Ba4 16.Ra4 Qd6+–) 15...Be6 (15...Qc7 16.Nbd2+–) 16.Na3 (16.Qa4 Qe7+–) 16...a4 (16...Nh5 17.Bd2+–) 17.Nb5 Qb6 18.Qd2 (18.Ra4 Rfb8+–) 18...Rfb8 (18...Nd7 19.d4+–) 19.Rfb1 (better 19.Qc2+–) 19...Ra5 (19...Nd7+–) 20.Ba5 Qc5 (20...Qc6 21.Ra4 Nd7 22.Rab4+–) 21.Nd6 (better 21.Bb4 Qc6+–) 21...Rb1 22.Rb1 Qd6 23.Rb8 (23.Qb4 Bf8+–) 23...Bf8?? (23...Qb8 24.Qa2+–) 24.Bb4 (better 24.Rd8 Nd7 25.d4+–) 24...Qb8 25.Bf8 Qf8 (25...Kf8 26.Qc3+–) 26.Ne5 Qa3 (better 26...a3 27.Nc6 Qa8+–) 27.Nd7?? (better 27.Nf3+–) 27...Qa1 (27...Bd7 28.Qe1–+) 28.Qd1 Qd1 29.Bd1 Nd7 (better 29...Bd7 30.f3 a3-/+) 30.h3?? (better 30.Ba4 Ne5 31.Bc2=) 30...Nc5 (better 30...a3 31.Bb3 Nc5–+) 31.Kh2 (31.Ba4 Na4 32.Kf1 f5–+) 31...Nd3 (better 31...a3 32.d4–+) 32.Be2 (32.Ba4 Nf2 33.e5–+) 32...Nf2 (better 32...Bc4 33.Kg3 a3 34.Bd3 Bd3–+) 33.Bd3 (33.Kg1–+) 33...Nd3 34.c5 a3 35.c6 a2 36.c7 a1Q (36...a1Q 37.h4 Qe5 38.Kg1 Qg3 39.h5 Nf4 40.c8Q Bc8 41.Kf1 Qg2 42.Ke1 Qe2) 0–1. sirgeshdb – LewPressler, lichess.org, 2020.

7.0-0 Nc6 8.c4 Ne7 9.d4 ed4 10.Nd4 a5 11.Nc3 ab4 (11...Nf5 12.Qd2=) 12.ab4+= Be6 (12...Ra1!? 13.Qa1 Re8+=) 13.Ra8+/- Qa8 14.c5 (14.Ne6 fe6 15.Qc2 Qe8+/-) 14...d5 (14...dc5 15.Ne6 fe6 16.bc5+/-) 15.Ncb5 Qc8 16.Qc2 (16.Ne6 fe6 17.Qb3 Ne4 18.Bg7 Kg7 19.Qb2 Kg8+=) 16...Ne4 (16...Nc6 17.Nc6 bc6 18.Nd4+=) 17.c6 (17.f3 Nf6+/-) 17...Nc6 (17...bc6 18.Nc6 Nc6 19.Bg7 Kg7 20.Qc6+/-) 18.Nc6+/- bc6 19.Nd4 (better is 19.Bg7 Kg7 20.Qc6+/-) 19...Qb7+= 20.f3 Nd6 21.Ne6 fe6 22.Bg7 Kg7 23.Qc3 Kf7 24.Ra1 Ke7 (better is 24...Rb8!?+=) 25.Ra6+= Kd7 (25...Nb5 26.Qc6 Qc6 27.Rc6+=) 26.Qg7 (better is 26.b5!? Qb8 27.Qc6 (27.bc6?! Ke7+=) 27...Ke7 28.e4 de4 29.fe4+–) 26...Rf7= 27.Qc3 Nb5 28.Bb5 Qb5 29.Ra8 Qc4 (29...Qe2 30.Ra1+=) 30.Qh8= Qh4 31.g3 Qf6 32.Qe8 Kd6 33.f4 Rd7 34.Qb8 e5 35.Ra2 (better is 35.b5!? ef4 36.bc6=) 35...ef4-/+ 36.ef4 Rd8 37.Qa7 Qc3 38.Re2 Qb4 (better is 38...Rf8 39.Re3 Qb4-/+) 39.Qe3?? (better is 39.Qa1 Qc5 40.Kh1+=) 39...Qb6–+ 40.Kf1 (40.Qf2 Qf2 41.Kf2 c5–+) 40...Qe3 41.Re3 Rd7 (41...c5 42.h4–+) 42.Rf3 (42.h4 Re7 43.Rf3 h5–+) 42...d4 43.Ke2 c5 44.Kd2 (44.h4 Kd5 45.h5 Ke4–+) 44...c4 45.Ra3 (45.h4 Kd5 46.h5 Rf7–+) 45...c5 46.Kc2 (46.Ra8 Kd5 47.Kc2 c3–+) 46...Kd5 47.f5 (47.h4–+) 47...gf5 48.Rf3 Ke5 0–1. yulio (1965) – lletram22 (1785), gameknot.com, 2014.

7.0-0 Nc6 8.d3 Bf5 9.b5= Ne7 10.c4 (10.Nc3 c5=) 10...Qd7 (10...a6 11.Nc3=+) 11.Nc3= h5 (11...a6 12.a4=) 12.Nd2 (12.e4 Be6+=) 12...c5 (12...c6 13.Qb3=) 13.a4 a5 14.e4 Be6 15.Nd5 Bd5 (15...Qd8!?+=) 16.cd5+/- (16.ed5?! Nf5=) 16...b6 (16...Qc7 17.Nc4+/-) 17.Nc4+- Qc7 18.f4 (18.Qd2 Nh7+-) 18...ef4+/- 19.Rf4 Nd7 20.Bg7 Kg7 21.Qd2 Ne5 22.Ne5 de5 23.Rf3 (23.Rh4 Ng8+/-) 23...Qd6 24.Raf1 (24.Rh3 f5+/-) 24...f5+= 25.Qg5 f4 (25...Qf6 26.Qc1+=) 26.g3 (26.Rh3 Qf6 27.Rh5 Rh8 28.Rh8 Rh8+-) 26...fg3 (26...Rae8!?+/-) 27.Qg3+- Rf3 28.Bf3 (28.Rf3?! Rf8+=) 28...Rf8 29.Bh5 Rf1 30.Kf1 Qf6 31.Bf3 Nc8 32.h4 Nd6 33.Kg2 Kh6 34.Kh3 g5 35.Bg4 (better 35.h5!?+-) 35...gh4+= 36.Qh4 Qh4 37.Kh4 c4 38.dc4 Ne4 39.Bf3 Nd6 40.Be2 Kg6 (40...Nb7 41.Kg3+=) 41.Kg4 (41.c5 bc5 42.b6 Kf7+-) 41...Kf6 (41...Nb7 42.Bd3 Kf6 43.Kf3+=) 42.Kf3 (better 42.c5!? bc5 43.b6+-) 42...Nb7+= 43.Ke4?? (better 43.Bd1+=) 43...Nc5-/+ 44.Ke3 Ke7 (44...Na4 45.Bg4-/+) 45.Bg4 (45.Bd1 Kd6+=) 45...Kd6 (better 45...Na4 46.Kd2 Nc5-/+) 46.Bd1+= Nd7 47.Ke4 Nf6 48.Kd3 (48.Kf5 Nd7+=) 48...Kc5 49.Kc3 (49.Bf3 Kb4=) 49...Ne8 50.Bc2 Nd6 Attacks the backward pawn on c4 51.Kd3 Nc4 52.Kc3?? (better 52.Ke4 Nd2 53.Ke5 Nf3 54.Kf4=) 52...Nd6-+ 53.Be4?? (better 53.Bb3 Ne4 54.Kd3-+) 53…Ne4 (53...Ne4 54.Kd3 Ng5-+) 0-1. allyouneedisluft (2520) - pavpavinkalesi (2540), Rated Bullet game, lichess.org, 2016. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Nf3 d6 6.Be2)

7.0-0 Nbd7 8.Nc3 d5=.

7.0-0 Nbd7 8.d3 c6 9.Nbd2 Qe7 10.c4 a6 11.Qb3 d5 12.cd5 cd5 13.Rac1 Re8 14.Rc7 Qd6 15.Rfc1 Nf8? (15...Rd8 16.d4 e4 17.Ne5+/-) 16.e4?? (16.Be5 Qd8+–) 16...Be6? (better is 16...N8d7+=) 17.ed5?? (better is 17.Be5 Qd8 18.Qb2+–) 17...Nd5+= 18.Ne4 Qb6 19.R7c5 Nf4 20.Qd1 Nd7 21.R5c2? Nf6?? 22.Rc7 Ng4 23.h3 f5 24.Neg5?? Qf2 25.Kh1 Qg2# 0–1. exp2005 – jazzychess, kurnik, 2011.

7.0-0 Nbd7 8.d3 Qe7 9.c4 c6 10.Qc2 Re8 11.Nc3 Nf8 12.Rab1 h6 13.Rfd1 b6 14.a4 Bb7 15.d4 ed4 16.Nd4 c5 17.bc5 dc5 18.Ndb5 Red8 19.Rd8 Rd8 20.Na7 Bg2 21.Kg2 Qa7 22.f4 Qc7 23.Bf3 Qd6 24.Bc1 Qd3 25.Qd3+/- 25...Rd3 26.Ne2 N6d7 27.h4 h5 28.Be4 Rd1 29.Ng3 Bc3 30.Bf3+= Re1 31.Ne4 Bb2 32.Rb2+/- Rc1 33.Nd6 Rc3 34.Kf2 Ra3 35.Ke2 Ne6 36.Bc6 Nf6 37.Kd2 Kg7 38.Ne8 Ne8 39.Be8 Kf8 40.Bc6 Ng7+= 41.Rb6 Nf5 42.Rb5 Nh4 43.Rc5+/- Nf5 44.Kc2 h4 45.Kb2 Re3 46.a5 Re2 47.Ka3 Re1 48.Re5 Rd1 49.Rd5 Rc1 50.Kb4+= Rb1 51.Kc5+/- Ra1 52.Kb5 Rb1= 53.Ka6 Rc1 54.Kb7 Rc4? 55.a6+– Rc1 56.a7 Ra1 57.Rd7 Ra7 58.Ka7 Kg7 59.Kb6 Kf6 60.Rc7 Ng7 61.Bd5 (61...Ne6 62.Be6 Ke6 63.Kc5+–) 1–0. Woelfelschneider,Peter (1700) – Wiesner,Norbert (1730), T4–04.03 TSC, 2002.

7.0-0 Nbd7 8.d4 e4 9.Nfd2 Re8 10.c4 Nf8 11.Nc3 Bf5 12.g4 Bd7 (12...Ng4 13.Bg4 Qg5-/+) 13.g5+/- Bh3 (better 13...Nh5!? 14.Nde4 f5 15.gf6 Nf6 16.Nf6 Qf6+/-) 14.gf6+- Qf6 (14...Bf6 15.Nde4 Bf1 16.Bf1+-) 15.Nde4 Qf5 (15...Qh4 16.Re1+-) 16.Ng3 Qg5 17.Bf3 (better 17.Re1!? f5+-) 17...Bf1 18.Qf1 h5?! (18...c6 19.b5 Rec8 20.Qg2+-) 19.Qg2 (better 19.Bb7!? Rab8 20.Bg2 h4+-) 19...c6 20.Nge4 White intends c5 20...Qh6?? (20...Qg2 21.Kg2 Rad8+-) 21.Nd6 Re7 (21...Ne6 22.Nb7 Nd4 23.ed4 Bd4 24.Rd1+-) 22.c5 (better 22.Nb7 h4 23.Na5 Rc8+-) 22...Ne6 23.d5 cd5 (23...Ng5 24.dc6 Nf3 25.Qf3 bc6 26.Qc6+-) 24.Nd5 Rd7 25.Nf6 Bf6 26.Bf6 h4 (26...g5 27.Be5 g4 28.Bb7+-) 27.h3 (27.Bb7 Rb8+-) 27...g5 28.Bb7 (better 28.Be5 f6 29.Bb7+-) 28...Qf6 29.Ba8 (better 29.Rd1!? Rad8 30.Qg4+-) 29...Qa1+/- 30.Kh2 (30.Qf1!? Qa3 31.Qb5+/-) 30...Qe5= 31.Kh1 Nc5?? (better 31...Qa1 32.Qg1 Qa3=) 32.bc5+- Qc5 33.Bd5?? (better 33.Ne4 Rd1 34.Kh2 Qc7 35.f4+-) 33...Rd6-+ (33...Qd6?! 34.Qg5 Kf8 35.e4=+) 34.Qg5 (34.Bb3 Qa3 35.Qg5 Kf8-/+) 34...Kf8 35.e4 Qf2 36.Qh5 (36.Qg1 Qf3 37.Qg2-+) 36...Rg6 37.Qh8 Ke7 (better 37...Rg8 38.Qg8 Kg8-+) 38.Qe5 Kd7 39.Be6 (39.Qf5 Qf5 40.ef5-+) 39...Re6 (39...fe6 40.Qb5 Ke7 41.Qb7 Kf8 42.Qb8 Kg7 43.Qe5 Kg8 44.Qb8 Kh7 45.Qb7 Kh6 46.Qh7 Kh7 47.e5 Rg1) 40.Qd5 (40.Qb5 Kc7 41.Qa5 Kc8-+) 40...Ke7 41.Qc5 (41.Qg5 Kf8 42.Qg1-+) 41…Qc5 (41...Qc5 42.Kg2 Qc2 43.Kg1 Rd6 44.e5 Rd1) 0-1. black_bishop_88 (2645) - trapvlad (2370), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 0-0 5.e3 d6 6.Be2)

7.0-0 Nfd7 8.d4 e4 9.Nfd2 f5 10.c4 c5 11.f3 (11.Nb3 Na6+=) 11...Nc6 (11...cd4 12.Bd4 Bd4 13.ed4=) 12.fe4 cd4 13.Nb3?? (13.b5 d3 14.Bg7 de2 15.Qe2 Kg7 16.bc6 bc6 17.ef5 Rf5 18.Rf5 gf5=) 13...de3 (better 13...d3 14.Bg7 de2 15.Qe2 Kg7 16.ef5 Rf5 17.Rf5 gf5-+) 14.Bg7 Kg7 15.ef5 Nde5 (15...Rf5 16.Rf5 gf5 17.Nc3=) 16.Qc1 (better 16.fg6!? Rf1 17.Qf1 hg6 18.Nc3+=) 16...Qg5=+ (worse 16...Bf5 17.Qe3 Qe7 18.Nc3+=) 17.Nc3 Bf5 (17...gf5 18.Qd1 f4 19.Kh1=+) 18.Nd5= Bd3 (18...Bg4 19.Rf8 Rf8 20.Bg4 Qg4 21.Ne3=+) 19.Bd3 Nd3 20.Qc3 (20.Qe3!? Qe3 21.Ne3 Rf1 22.Rf1=) 20...Nce5=+ 21.Nd4 Kg8 22.Ne6 Rf1 (22...Qh4!? 23.Nf8 e2=+) 23.Rf1= Qg4?? (better 23...Qh4 24.Ne3 Qe4=) 24.Nec7 (better 24.Nf6 Kf7 25.Ng4 Ke6 26.Rf6 Kd7 27.c5+-) 24...Rf8 25.Ne7?? (better 25.Rf8 Kf8 26.Ne3-/+) 25...Kg7-+ 26.Ncd5 (26.Ne6 Qe6 27.Rb1 Qc4 28.Qc4 Nc4 29.Nd5-+) 26…Rf1 (26...Rf1 27.Kf1 Qd1 28.Qe1 Qe1) 0-1. Arifars17 (2680) - H1ypnotized (2725), Rated Bullet game, lichess.org, 2021. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Nf3 d6 6.Be2)

7.0-0 e4 8.Nd4 c5 9.Nb3 cb4 10.ab4 b6 11.f3 ef3 12.Bf3 d5 13.c4 Bb7 14.b5 a5 15.Nc3 d4? (better is 15...dc4 16.Bb7 Ra7+/-) 16.Bb7 Ra7 (16...dc3 17.Bc3 Ra7+–) 17.Nd5 Rb7 18.Nf6 Bf6 19.Qf3 (19.Bd4?! Bd4 20.Nd4 Qd6+–; 19.Nd4?! Rc7+–) 19...de3 (19...Ra7 20.Qf6 Qf6 21.Rf6 Nd7+–) 20.Bf6 (20.Qb7?! Bb2 21.Rab1 ed2+/-; 20.Qf6?! Qf6 21.Bf6 ed2 22.Nd2 Nd7+–) 20...Qc7 21.Bd4 ed2 (21...Nd7 22.d3 e2+–) 22.Qf6 (22.Qf6 Qh2 23.Kh2 d1Q 24.Qh8) 1–0. pierred – amateour_001, Yahoo, 2005.

7.0-0 Be6 8.d4=.

7.c4 Nbd7 8.d4 ed4 9.Bd4 b6 10.0-0 Bb7 11.Nbd2 Qe7 12.Bb2 Rfd8 13.b5 Ne5 14.Nd4 c5 15.bc6 Nc6 16.Nc6 Bc6 17.Nf3 d5 18.Nd4 Bb7 19.cd5 Nd5 20.Qb3 Nf4 21.Bf3 Bd4 22.ed4 Bf3 23.Qf3 Qe2 24.Qf4 Qb2 25.Rfd1 Rd5 26.Qd2 Qd2 27.Rd2 Rc8 28.Kf1 Rc4 29.Rad1 Kf8 30.Ke2 Ke7 31.Ke3 Kd6 32.Rd3 Ra5 33.Rb1 Kd5 34.h4 f6 35.g4 b5 36.f4 a6 37.f5 gf5 38.gf5 Raa4 39.Rbd1 Rc2 40.Kf3 Ra2 41.Kg4 R2a3 42.R3d2 Ra2 43.Ra2 Ra2 44.Kh5 b4 45.Kh6 b3 46.Kh7 Rg2 47.h5 b2 48.h6 a5 49.Kh8 a4 50.h7 Rh2 51.Kg8 a3 0–1. Jagodzinski,P (2145) – Sabuk,P (2210), 4th Karkonosze Open A, 2011.

7.c4 Re8 8.0-0 Bg4 (8...e4 9.Nd4=+) 9.d4 e4 10.Nfd2 Be2 11.Qe2 c6 12.Nc3 Nbd7 13.f3 ef3 14.Qf3 Qe7 15.Rae1 a5 16.e4 (16.b5 Rac8=) 16...ab4=+ 17.ab4 Qf8 (17...Nf8 18.Qd3=+) 18.c5 dc5 (18...b5!?=) 19.bc5+/- b6 (19...Nc5 20.dc5 Nd7 21.Nb3+/-) 20.e5 Nd5?? (better 20...bc5 21.ef6 Bf6+/-) 21.Nd5+- cd5 22.c6 (22.Qd5?! Ne5 23.cb6 Nd3 24.Re8 Qe8 25.Rf7 Qf7 26.Qa8 Bf8+/-) 22...Nb8 23.Qd5 Na6 (23...Rc8 24.Rc1 Qe8 25.Ne4+-) 24.Ne4 Nc7 (24...Nb4 25.Qb5 Nc2 26.Re2+-) 25.Qb3 Rad8 (25...Ne6 26.Nd6 Re7+-) 26.Ba3 Re7 27.Ng5 Qe8 (27...Rde8 28.Bd6 b5+-) 28.Be7 (28.Be7 Qe7 29.Rf7 Qg5 30.Rf5 Kh8 31.Rg5+-) 1-0. PierrE – Trappas, internet, 2022.

7.c4 Bg4 8.h3 Bf3 9.Bf3 e4 10.Be2 c6 11.Nc3 d5 12.cd5 cd5 13.0-0 Nc6 14.d3 ed3 15.Qd3 Ne5 16.Qd2 Rc8 17.Rac1 Nc4 18.Bc4 dc4 (worse is 18...Rc4 19.Rfd1+/-) 19.Rfd1 Qe7 (19...Qd2 20.Rd2 Rfd8 21.Rd8 Rd8 22.Nb5=) 20.Nd5 (20.Qd4!? Rfd8 21.Qa7+/-) 20...Nd5= 21.Bg7 Kg7 22.Qd5 c3 23.Qd4 Qf6 24.Qf6 Kf6 25.Rd3 c2 26.Rd2 Rc3 27.Rdc2 Ra3 28.Rc7 b6 29.Rd1 a5 30.ba5 ba5= 31.Rd6 Kg7 32.Ra6 Rb8 33.Rca7 Rb5 34.Rc7 Ra2 35.Raa7 Rf5 36.f3 h5 37.Rc6?? g5 38.Rac7 a4 39.Rc5 Rc5 40.Rc5 f6 41.Ra5 a3 42.Kh2 Kf7 43.Ra6 Kg6 44.Kg3 h4 45.Kh2 Ra1 46.e4 Kf7 47.Ra5 Ke6 48.Ra6 Ke5 49.g3? Ra2 50.Kg1 hg3 51.Ra5 Kf4 52.Rf5 Ke3 53.Rf6 Rh2 54.Ra6 a2 55.Kf1 a1Q! 56.Ra1 Rh1 57.Kg2 Rg1 58.Rg1+– 1–0. Fournier,Frederic (1825) – legolas70 (1885), Active (5/0), 2004.

7.d3 a5 8.b5 Nfd7 9.Qc1 Nc5 10.a4 Nbd7 11.Nbd2 (better 11.0-0!?=) 11...Nb6-/+ 12.d4 Nca4 13.de5 Nb2 14.Qb2 de5 15.Ne5 Re8 16.f4 Qe7 17.Ndf3 Bg4! 18.0-0 (18.Ng4 Qb4 Double attack (18...Bb2 Pinning; 18...Bb2 Deflection; 18...Qb4 Decoy)) 18...Nd7 19.Qc3? (better 19.Ra4-/+) 19...Ne5 (19...Be5?! 20.fe5 Ne5 21.Ra4=+) 20.fe5 Bf3 21.Bf3 Be5 22.Qc4 (22.Qd3 Ba1 23.Ra1-+) 22...Ba1 23.Ra1 Qe3 24.Kf1 Qe5 25.Rd1 (25.Qa4 c6 26.bc6 b5-+) 25…Qh2 0-1. Obad,Andrija (2275) - Praggnanandhaa,R (2605), Titled Tuesday, 2020. (=1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2)

7.d3 Bg4 8.Nbd2 Nbd7 9.0-0 Ne8 10.c4 (10.d4 f5+=) 10...f5 (10...e4!? 11.Bg7 ef3 12.gf3 Bh3+=) 11.h3 Bf3 12.Nf3 e4 13.de4?? (better is 13.Bg7 ef3 14.Bf8 fe2 15.Qe2 Nf8 16.Qf3+=) 13...Bb2-/+ 14.Rb1 Bg7 15.ef5 Rf5 16.Nd4 Rf8 17.Bf3? c6 18.b5 Ne5-/+ 19.bc6 Nf3–+ 20.Nf3 bc6 21.Qc2 Nf6 22.Rfd1 Qe7 23.Nd4 c5 24.Nc6?? Qd7 25.Na5 Rae8 26.Nb3? Ne4 0–1. Fournier,Frederic (1810) – 0scar (1605), Active (1/0), 2005.

7.h4 Bg4 8.Ng5 Be2 9.Qe2 h6 10.Nc3? (better 10.Nh3=+) 10...hg5-+ 11.hg5 Nh7 12.f4? (better 12.Qb5 b6 13.f4-+) 12...ef4 13.ef4 (13.0-0-0 Re8 14.Qf3 fe3 15.de3 Qg5 16.Qb7-+) 13...Re8 14.Qe8 (14.0-0-0 Re2 15.Ne2 Bb2 16.Kb2 a5-+) 14...Qe8 15.Kd1 Qc6 16.Re1 (16.Rg1 Bd4 17.Re1 Qg2-+) 16...Nd7 (16...Qg2 17.Rb1-+) 17.b5 (17.Re2 Nb6 18.Rb1 Bc3 19.Bc3 Nd5-+) 17...Qg2 18.Kc1 (18.Rb1 Bc3 19.Bc3 Qf3 20.Kc1 Qf4-+) 18...Nc5 19.a4 (19.Rb1 Ne6 20.Nd1 Nf4 21.Bg7 Kg7-+) 19...a6 20.Ba3 (20.ba6 Ra6 21.a5 Qf2-+) 20...ab5 21.Bc5 dc5 22.Rb1 b4 23.Ne4 Nf8 (better 23...Re8 24.Nf6 Nf6 25.Rd1-+) 24.Rb3 (24.Nc5 Qd5 25.Nd3 Ra4-+) 24...c4 (better 24...Ra4 25.f5 gf5 26.Nf6 Bf6 27.gf6-+) 25.Rb4 b5! 26.Rb5 (26.ab5 Ne6 Combination; 26.Rb5 Ra4 Deflection) 26...Ra4 27.Nc5 (27.c3-+) 27...Ra1 (better 27...Qf2 28.Rd1 Qc5 29.d4 Qa3 30.Kd2 Bd4 31.Rb3 cb3 32.Rh1 b2 33.Rh8 Kh8 34.c3 Qc3 35.Ke2 Qe3 36.Kd1 b1Q) 28.Rb1 Rb1 (28...Qg3 29.Nd3 cd3 30.Rh1 Qf3 31.Rg1 Qb7 32.Ra1 Qb2 33.Kd1 Qa1) 29.Kb1 Qd2 30.Rf1 Qb4 (30...Qb4 31.Kc1 Qc5 32.Rf3 Qg1 33.Kd2 Qg2 34.Kd1 Qf3 35.Kc1 Qe3 36.Kd1 c3 37.f5 Qd2) 0-1. black_bishop_88 (2555) - Alex844 (2450), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 0-0 5.e3 d6 6.Be2)

6.c4

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2).

6.c4 Nbd7 7.0-0 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nbd7).

6.c4 e5 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5).

6.c4 e5 7.0-0 Re8 8.d3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0).

6.c4 e5 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2).

6.d3 c5

7.b5 Qa5 8.Nc3 Nd5 9.0-0 Nc3 10.Bc3 Bc3 11.Rb1 Bg7 12.d4 cd4 13.Nd4 Qa2 14.c4 Bd4 15.ed4 a6 16.Qd3 Bf5 17.Qd1 Qb1 18.Qb1 Bb1 19.Rb1 ab5 20.cb5 Nd7 21.Bf3 Rab8 22.h3 b6 23.Kh2 e5 24.de5 Ne5 25.Be2 f5 26.f4 Nf7 27.g3 Rfe8 28.Rb2 Rbd8 29.Kg2 d5 30.Kf3 d4 31.Bc4 d3 32.Rd2 Kg7 33.Bd3 Re7 34.h4 Red7 35.Ke3 Rd3 36.Rd3 Rd3 37.Kd3 Nd6 38.Kd4 Nb5 39.Kd5 Nc3 40.Kc6 b5 41.Kc5 Ne2 42.Kb5 Ng3 43.Kc5 Ne2 44.Kd5 Nf4 45.Ke5 Ng2 46.h5 Kh6 47.hg6 hg6 48.Kd4 Kh5 49.Kd3 g5 50.Ke2 Kh4 51.Kf2 Kh3 52.Kg1 g4 53.Kf2 f4 54.Ke2 Nh4 55.Kd3 Kh2 56.Ke4 g3 57.Kf4 g2 58.Ke4 g1Q 59.Kd5 Qe3 60.Kd6 Nf5 61.Kc6 Qd4 62.Kc7 Ne7 63.Kb7 Qc5 64.Kb8 Nc6 65.Kb7 Na5 66.Kb8 Qe7 67.Kc8 Kg3 68.Kb8 Qb7 0–1. eliton – harnas57, kurnik, 2012.

7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Bc3 Qb5 12.d4 Qd7 13.dc5 dc5 14.Bf6 Qd1 15.Bd1 Bf6 16.0-0 Bg4 17.Be2 Nc6 18.Re1 Nb4 19.c3 Bf3 20.Bf3 Nd3 21.Rd1 Nb2 22.Rd7 Na4 23.c4 b6 24.Na3 e6 25.g3 Rd8 26.Rb7 Bb2 27.Nc2 Rd2 28.Bc6 Nc3 29.Ne1 1–0. eliton – alankodzas, kurnik, 2012.

7.b5 Bg4 8.Nbd2 a6 9.a4 ab5 10.ab5 Nbd7 11.c4 Nb6 12.0-0 e6 13.Qc2 Qc7 14.h3 Bf3 15.Nf3 d5 16.Be5 Qd7 17.Bb2 Ne8 18.Bg7 Ng7 19.Ne5 Qc7 20.Nf3 Nf5 21.Ng5 Kg7 22.Qb2 Kg8 23.Qf6 Qe7 24.Qe7 Ne7 25.Nf3 f6 26.Kh2 d4 27.e4 e5 28.Nh4 f5 29.ef5 gf5 30.Nf3 e4 31.Ne5 Ng6 32.Ng6 hg6 33.de4 Rfe8 34.f3 fe4 35.fe4 Re4 36.Bd3 Re3 37.Ra8 Na8 38.Rd1 Nc7 39.Bg6 Ne6 40.Bd3 Nf4 41.Bf5 Re2 42.Rg1 d3 43.Bg4 Rc2 44.Bf3 d2 45.Rd1 Nd3 46.Be4 Rc1 47.Rd2 1–0. chocobom – ncvd60, kurnik, 2012.

7.bc5 Qa5 8.Nbd2 Qc5 9.0-0 Bd7 10.c4 Na6 11.a3 Qc7 12.d4 Rac8 13.Qb3 Nb8 14.Rac1 b6 15.Qa2 Ba4 16.e4+= Qb7 17.Bd3 Nh5 18.g3 Nd7 19.Rfe1 e5 20.Qa1 Rcd8 21.Nf1 Rfe8 22.Ne3 ed4 23.Bd4 Nc5=+ 24.Bb1 Nb3-/+ 25.Qc3 Nc1 26.Rc1 Bc6 27.Bg7 Ng7 28.Ng4 f5 29.Nf6 Kh8 30.Ne8 Re8 31.Qf6 Qe7 32.Qe7 Re7 33.Nd4 Be4 34.Re1 Rc7 35.Ba2 a6 36.f3 Bd3 37.Ne6 Ne6 38.Re6 Bc4 39.Bc4 Rc4 40.Rd6 Rc1 41.Kg2 Rb1 42.a4 a5 43.Rd7 Rb4 44.Rb7 Ra4-/+ 45.Rb6 Ra2 46.Kh3 Kg7 47.Rb7-/+ Kh6 48.Ra7 g5 49.g4 fg4 50.Kg4-/+ Rh2 51.Ra5 (51.Ra6 Kg7-/+) ½–½. Saradjen,Janko (2190) – Vasic,Petar (2175), Portoroz Open, 2003.

7.bc5 dc5 8.0-0=.

7.bc5 dc5 8.Nbd2 b6 9.0-0 Bb7 10.c4 Nbd7 11.g3 (11.Qc2 Qc7=) 11...e6 12.Ne5 Qc7 13.Nd7 Qd7 14.Bf3 Rad8 15.Bb7 Qb7 16.Nf3 Rd6 17.Qc2?? (17.Be5 Rd7=) 17...Rfd8 (better is 17...Qf3 18.Rfd1 Rfd8–+) 18.Ne5 (better is 18.Ne1!?+=) 18...Nd7-/+ 19.Nd7 R8d7 (better is 19...Qd7!? 20.Bg7 Kg7-/+) 20.Bg7+= Kg7 21.Qc3 Kg8 22.Rad1 Qf3 23.d4? h5 24.h4 cd4–+ 25.Rd4?? Rd4 26.Qd4 Rd4 27.ed4 Qd3 28.d5 ed5 29.cd5 Qd5 30.Re1 Qa2 31.Re8 Kg7 32.Re7 b5 33.Rb7 a6 34.Kg2 Qd5 35.Kh3 0–1. sunnyda – ghelcimbro, kurnik, 2012.

6.d3 Nbd7

7.0-0 a5 8.b5+=.

7.0-0 b6 8.Nbd2 Bb7 9.c4 e5 10.Qc2 Re8 11.Rfe1 e4 12.Nd4 ed3 13.Bd3 Nf8 (13...c5 14.bc5 Nc5 15.Be2+=) 14.Rad1 c5 15.bc5 dc5 (15...bc5 16.N4f3=) 16.Nb5+= a6 17.Nc3 (17.Bf6 Qf6 18.Nc7 Qc6+=) 17...Qc7= 18.Be2 Rad8 19.Bf3 Ne6 20.Bb7 Qb7 21.e4 (21.f3 Qe7=) 21...Nd4+= 22.Qb1 Qc7 (22...b5!?+=) 23.Nd5= Nd5 24.cd5 Qf4 (24...Be5 25.h3=) 25.g3 (25.Bd4 Bd4 26.Nf3 Qf6+/-) 25...Qd6 26.Bd4 (26.Kg2 f5 27.Nc4 Qf8 28.ef5 b5 29.Bd4 Bd4=) 26...Bd4 27.Kg2 b5 28.Nb3 Bg7 29.Qc2 Rc8 (29...c4 30.Na5 Rd7 31.Nc6=) 30.f4 f6 (30...c4 31.e5 Qd8 32.Nc1=) 31.Na5+= Bf8 32.Nc6 1–0. Melderis,Uldis (1975) – Silivri,Volkan Resat (1675), Golden Sands BUL, 3rd Grand Europe Open, 2014.

7.0-0 e5 8.c4 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Re8 12.Nbd2 Nf8 13.Qb3 Bf5 14.e4 Bc8 15.Bb2 Nh5 16.g3 Bg4 17.Kg2 Qd7 18.Qd1 (better is 18.Ra1=) 18...Bh3-/+ 19.Kg1 Bf1 20.Nf1 Nf6 21.Ne3 Ne6 22.Qb3 Bh6 23.Nd5 Nd5 24.cd5 Ng7 25.Qc4 c6 26.dc6 Qc6 27.Qc6 bc6 28.Bc3 Kf8 29.g4 Ne6 30.h4 Bf4 31.d4 ed4 32.Nd4 Nd4 33.Bd4 Re4 34.Bc3 Be5 35.Be5 de5 36.Bf3 Rb4 37.Bc6 Ke7 38.h5 Rg4 39.Kf1 gh5 40.Bf3 f5 41.Ke2 e4 42.Bg4 hg4 43.Ke3 Kf6 44.Kf4 h5 (44...h5 45.Ke3 Kg5–+) 0–1. bratek55 (1645) – cienias321 (1665), kurnik, 2011.

7.a3 e5 8.c3 Ne8 9.c4 f5 10.0-0 Nef6 11.Re1 c5 12.b5 b6 13.a4 Bb7 14.Nbd2 e4 15.de4 fe4 16.Ng5 Qe7 17.Bf6 Bf6 18.Rb1 Bg5 19.Bg4 Ne5 20.Be2 Qf7 21.Ne4 Be4 22.Rc1 Qf2 23.Kh1 Qg2 0–1. eliton – mafagalfo, kurnik, 2012.

7.c4 c5 8.a3 a6 9.Nc3 b5 10.d4 (10.cb5!? ab5 11.d4=) 10...bc4+= 11.Bc4 Bb7 12.Be2 cd4 13.ed4 Nd5 14.Nd5 Bd5 15.0-0 Qb6 16.Qd2 Nf6 17.Rfc1 Rfc8 18.Ne1 Ne4 19.Qd3 a5 20.b5 a4 21.Nc2 Bh6 22.Ne3 Bb7 23.d5 Nc5 (better is 23...Be3!? 24.fe3 Bd5=) 24.Qd4+/- f6 25.Rab1 Nd7 26.Qe4 Ne5 27.Bd4 Qa5 28.Nc4 Nc4 29.Rc4 (29.Bc4? Bc1 30.Rc1 Rc4 31.Rc4 Qb5–+) 29...Rc4 (better is 29...e5!? 30.Bc3 Rc4 31.Qc4 Qb6=) 30.Qe6+/- Kf8 31.Bc4 Qc7 (31...Rc8!? 32.Re1 Qd8+/- (32...Rc4?? 33.Qe7 Kg8 34.Qe6 Kh8 35.Bf6 Bg7 36.Qe8)) 32.Re1+– Bd2 33.b6 Qc4?? (better is 33...Qd8 34.Rb1 Qc8+–) 34.Qe7 Kg8 35.Qe6 (35.Qe6 Kg7 36.Qf6 Kg8 37.Qg7; 35.Qb7 Rf8 36.Bf6 Rf6 37.Re8 Rf8+/-; worse is 35.Bf6 Bh6 36.Qe6 Kf8 37.Qd6 Kg8 38.Qe6 Kf8 39.Qe7 Kg8 40.Qb7 Rf8+–) 1–0. Chandler,P (2140) – Kreyssig,Bruno (1950), 3rd Hofheim Spring Open, 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.d3 Nbd7)

7.Nbd2 c5 8.bc5 Nc5 9.c4 Bd7 10.0-0 Na4 11.Bd4 (better is 11.Rb1!?=) 11...e5-/+ 12.Ne5 de5 13.Be5 Re8 14.d4 Nc3 15.Qe1 Ne2 16.Qe2 Bc6 17.d5? (better is 17.Rad1!?-/+) 17...Re5–+ 18.dc6 bc6 19.Nf3 Re8 20.Rad1 Qc7 21.g3 Rad8 22.Rd8 Rd8 23.Qc2 c5 24.Nh4 Qc6 25.Rd1 Rd1 26.Qd1 Qd7 27.Qb3 Ne4 28.Qb8 Bf8 29.Nf3 Kg7 30.Qe5 Nf6 31.g4?? Qd6 32.Qc3 Kg8 33.g5 Ne4 34.Qb2 Be7 35.Qb7 Ng5 36.Qc8 Kg7 37.Ng5 Bg5 38.Qg4 Bf6 39.h4 h5 40.Qh3 Qe5 41.Qf3 Bh4 42.Qc6 Qf6 43.Qc5 Qf2 44.Kh1 Qf3 45.Kg1 Bf2 46.Kh2 Qg3 47.Kh1 Qg1# 0–1. sunnyda – taszer (1675), kurnik, 2012.

6.d4 a5

7.b5 b6 8.c4 c5 9.Nc3 Nbd7 10.d5 Qc7 11.Qc2 e6 12.0-0-0 ed5 13.Nd5 Nd5 14.Rd5 Nf6 15.Rd2 Be6 16.Ng5 Rad8 17.e4 Qe7 18.h4 h6 19.Ne6 Qe6 ½–½. Ponyi,Attila – Frink,Ferenc, Salgotarjan, 1980.

7.b5 c6 8.a4 Nbd7 9.0-0 Nd5 10.Nbd2 cb5 11.ab5 b6 12.Re1 Bb7 13.e4 (13.c4 N5f6+=) 13...Nf4 14.Bf1 Ne6 15.c4 Qc7 16.Qb3 Rad8 (16...Rfc8 17.Qe3+=) 17.Rac1 (17.Qe3 Ra8+/-) 17...Ra8+= 18.Red1 (18.Qa4 g5 19.Qa1 Nf6+=) 18...a4= 19.Qb4 a3 20.Ba1 (20.Bc3 Nf6 21.Re1 a2=) 20...Ra7 21.d5 Ba1 (21...Nec5!?=) 22.de6+= Bb2 23.ed7 Bc1 24.Rc1 a2 25.Ra1 Qd7 26.Qb2 Rfa8 27.Nd4 Qg4 28.f3 (28.N4b3 Qf4+= (28...Be4? 29.f3 Bf3 30.Nf3+-)) 28...Qf4 29.N2b3 (29.N4b3 Qf6 30.Qf6 ef6+=) 29...e5 (29...Qe3 30.Kh1=) 30.Nc2 Ra4 (30...g5!?+=) 31.Nc1+/- f5 32.ef5 e4 33.fg6 (33.Ne2 Qf5 34.Nc3 R4a7 35.fe4 Be4+/-) 33...ef3 Attacks the backward pawn on c4 34.gh7 (34.Ra2 fg2 35.Bg2 Bg2 36.Kg2 Rf8-+) 34...Kh7+= 35.Qd4 (35.Ra2?? f2 36.Kh1 Bg2 37.Kg2 Rg8 38.Qg7 Rg7 39.Kh3 Qg4) 35...Qd4 36.Nd4 fg2 37.Bd3 Kh8 38.Nc6 Rc8?? (better 38...Ra3=) 39.Ra2+- (39.Na2?! Rca8 40.Bb1 Rc4=) 39...Ra2 40.Na2 Bc6 41.bc6 Rc6 42.Nb4 Rc7 (42...Rc5 43.Kg2 Rg5 44.Kf3+-) 43.Kg2 Kg7 (43...Rc5 44.h4+-) 44.Kf3 (44.Nd5 Ra7+-) 44...Rf7 45.Kg3 Ra7 46.Nd5 Ra3 47.Nf4 Kf6 48.h4 Kg7 (48...Ra8 49.Be2+-) 49.Kg4 Kh6 50.Kf5 Ra2 51.Ke6 (51.Nd5 Rh2+-) 51...Rf2 52.Nd5 Rh2 53.Kd6 Rh4 54.Kc6 Rd4 55.Nb4 Rd8 (55...Kg7 56.Kb6 Kf6 57.Kb5+-) 56.Kb6 Rb8 57.Kc5 Kg5 58.Nd5 Ra8 59.Kd4 Ra4 60.Nc3 Rb4 61.Be4 Kh6 62.Nd5 Ra4 63.Bc2 Ra2 64.Kc3 (64.Nb4 Ra8+-) 64...Kg7 65.c5 Ra6 66.Kb4 Rh6 (66...Re6 67.Ba4 Re4 68.Kb5+-) 67.Kb5 Rh2 68.Bd3 Rd2 69.Bc4 Rd4 70.c6 (70.c6 Re4 71.c7+-) 1-0. Mely (2295) - lrogue (2165), ChessWorld.net, 2016.

7.b5 c6 8.c4 cb5 9.cb5 Nbd7 10.0-0 Nb6 11.Nbd2 a4 12.e4 Bd7 13.Rc1 Rc8 (13...Qe8 14.Rc7=) 14.Rc8+= Qc8 15.d5 Ng4 (15...Qc7 16.Bd4+=) 16.Bg7+– Kg7 17.Qa1 Nf6 18.Rc1 Qb8 (18...Qa8 19.Qd4 Rc8 20.Rc8 Nc8 21.a3+=) 19.Qd4 Qd8 20.h3 Kg8 21.Bd3 Be8 22.Rc3 Nfd7 23.Be2 Nc5 24.e5 de5? (better 24...Bd7+–) 25.Qc5+– Nd5 (25...f6 26.Qc7 Bf7 27.Qb7+–) 26.Rc1 Nf4 (26...e6 27.Qa7+– (27.Ne5?! Nf4 28.Qe3 Ne2 29.Qe2 Bb5+–)) 27.Bc4 (27.Qe5 Qd6 28.Qe4 Ne2 29.Qe2 Bd7+–) 27...Nd3 28.Bd3 Qd3 29.Qe7 Bb5 30.Qb7 f5 (30...Bd7+–) 31.Rc7 (31.Rc7 Bd7 32.Rd7 Qd7 33.Qd7+–) 1–0. Lejel – 008Andrew, internet, 2019.

7.b5 Nbd7 8.0-0 e5 9.a4 e4 10.Nfd2 Re8 11.c4 Nf8 12.Nc3 h5 (12...Qe7 13.Rb1+=) 13.Qc2 e4 becomes the focus of attention 13...Qe7 (13...Bf5 14.Rab1+=) 14.Nb3 White plans c5 (14.Nd5 Nd5 15.cd5 Nh7+=) 14...N8h7 (14...h4 15.h3+=) 15.c5 Ng5 16.cd6 cd6 17.Ba3 (17.Rac1 h4+=) 17...h4 18.h3 Nh3 (18...Be6 19.Rac1+=) 19.gh3+/- Bh3 20.Rfc1 Nd5 (20...Ng4 21.Bg4 Bg4 22.Nd2+/-) 21.Nd5?? (21.Kh2 Nc3 22.Qc3+/- (worse 22.Kh3 Ne2 23.Qe2 Qe6 24.Kh4 Bf6 25.Kg3 Qb3=+)) 21…Qg5 (21...Qg5 22.Bg4 Qg4 23.Kh2 Qg2) 0-1. sezwho (2000) - Shaeferov (2005), Rated Bullet game, lichess.org, 2014.

6.d4 b6

7.0-0 Bb7 8.b5 Nbd7 9.c4 Re8 10.Nbd2 c6 11.a4 cb5 12.ab5 e5 13.Ng5 h6 14.Nh3 ed4 15.Bd4 Nc5 16.Bf3 Bf3 17.Qf3 Qe7 18.Ra2 Nfe4 19.Ne4 Ne4 20.Nf4 Ng5 21.Qd1 Rec8 22.Nd5 Qd8 23.h4 Ne4? 24.Qd3 Nc5+/- 25.Qc3 Bd4 26.ed4 Qh4? 27.dc5+– Rc5 28.Qf3 Rac8? 29.g3 Qc4 30.Ra7?? Qd5–+ 31.Qd5 Rd5 32.Re1 Re5?? 33.Rd1? d5 34.Rd7? Rc5–+ 35.Rd8 Kg7 36.f4 Re3 37.Kf2 Rb3 38.R1d5 Rbb5 39.R5d7 Rf5 40.Rb8 Rb2 41.Kf3 Rb3 42.Ke4 b5 43.Rbb7? h5 44.Rbc7? Rb4 45.Kf3 Rb3 46.Ke4 Rb1 47.Kf3 Rf1 48.Ke4?! Re1 49.Kf3 b4 50.Rb7 Rb1 51.Rd4 Rb3 52.Kg2 Kg8 53.Rdb4-/+ Rb4 54.Rb4 h4 55.g4= h3 56.Kh3 Rd5 57.Kh4 Kg7 58.Re4 Rd2 59.Rd4?? Rd4–+ 0–1. florenc1330 (1840) – lkschrobry (1845), kurnik, 2012.

7.0-0 Bb7 8.Nbd2 c5 9.bc5 dc5 10.c4 cd4 11.ed4 Nc6 12.d5 Nb8 13.Qc2 Nbd7 14.Rac1 Nc5 15.Ba3 Nfd7 16.Nb3 Qc7 17.Nc5 Nc5 18.h3 Rac8 19.Rfe1 Qf4 20.Qd2 Qc7 21.Nd4 Ne4 22.Qc2 Nc5 23.Nb5 Qf4 24.Na7 Ra8 25.Bc5 bc5 26.Nb5 Ba6 27.a4 Bc8 28.Bf3 Bh6? 29.Qe4?? Ra4?? 30.Qf4 Bf4 31.Rc2 Bf5 32.Rce2 Rc4 33.Re7 Bd2 34.Rd1 Bb4 35.d6 Rd4?? 36.Rd4 cd4+/- 37.Re5 1–0. mihai740609 – fafek222, kurnik, 2011.

7.0-0 Nbd7 8.c4 c5 9.b5 a5 10.Nbd2 d5 11.dc5 Nc5 12.cd5 Nd5 13.Bg7 Kg7 14.Nc4 Nc3 15.Qd4 Qd4 16.Nd4 (16.ed4? Ne2 17.Kh1 Na4–+) 16...Rd8?? (better is 16...Be6!? 17.Ne6 Ne6=) 17.Nb6 Rb8 18.Nc8 Rbc8 19.Bf3 e5 20.Nc6 Rd2 21.a4 N5a4 22.Na5 e4 23.Bd1?? Nb2=+ 24.Bb3 Nb5 25.Rac1 Rc1 26.Rc1 Nd3 27.Rf1 Nc3 28.g3 Rb2 29.Bc4 Ne5 30.Bb3 Nf3 31.Kg2 g5 32.h3 h5 33.g4 h4 34.Rc1 Rb1 35.Rb1 Nb1 36.Bd5 Nbd2 37.Nc4 Kf6 38.Be4?? Ne4?? 39.Kf3+/- Nd6?? 40.Nd6+– Ke6 41.Ne4 f5 42.Ng5 Kf6 43.Nh7 Kg6 44.gf5 Kh7 45.Kg4 Kh6 46.Kf4 Kh5 47.e4 Kh6 48.e5 Kg7 49.e6 Kf6 50.Ke4 Ke7 51.Ke5 (51.Ke5 Kd8 52.f6 Ke8 53.Kd6 Kf8 54.Kd7 Kg8 55.Ke8 Kh7 56.Kf7 Kh6 57.f4 Kh5 58.e7 Kh6 59.e8Q Kh7 60.Qg8 Kh6 61.Qg6) 1–0. florenc1330 (1840) – rinpoche (1865), kurnik, 2011.

7.a3 Bb7 8.c4 Ne4 9.Nbd2 Nd7 10.Ne4 Be4 11.Bd3 Bd3 12.Qd3 c5 13.Qc2 a5 14.b5 e5 15.de5 Ne5 16.Ne5 de5 17.Rd1 Qc7 18.0-0 Rad8 19.Rd8 Rd8 20.Rd1 f5 21.f3 Kf7 22.Kf1 h5 23.g3 Ke6 24.Ke2 Rd1 25.Qd1 Qd6 26.Qd6 Kd6 27.a4 Ke6 28.Kd3?? Bf6?? 29.e4 g5 30.ef5 Kf5 31.Ke3 g4 32.fg4 hg4 33.Bc3 Bg5 34.Kd3 Bc1?? 35.Ke2?? Ke4?? 36.Ba1 Bg5-/+ 37.Bc3 Bd8 38.Ba1 Bg5 39.Bc3 Kf5 40.Kd3 e4 41.Ke2 Bd8 42.Bd2 Bc7 43.Bc3 Bd6 44.Bd2 Be5 45.Be3 Ke6 46.Bh6 Kf5 47.Be3 Bd4 48.Bh6 e3 49.Bf4 Be5 50.Be5 Ke5= 51.Ke3 Kf5 52.Kd3 Ke5 53.Ke3 Kf5 54.Kd3 Ke5 55.Ke3 ½–½. Fournier,Frederic (1970) – harries, Owl21.com, 2009.

7.c4 c5 8.a3 cd4 9.ed4 e6 10.0-0 a6 11.Nbd2 Bb7 12.Qb3 Nbd7 13.a4 a5 14.Ba3 Qb8 15.Rab1 Ne4 16.Rfd1 Rc8 17.Qe3 Ndf6 (17...ab4 18.Rb4 Nd2 19.Nd2=+) 18.h3 (18.ba5 Ng4 19.Qf4 Ngf2+=) 18...Qa7 19.Rdc1 (19.b5 Re8+=) 19...ab4= 20.Rb4 Nd2 21.Nd2 Bc6 22.Rcb1 Nd7 23.Bf3 d5 24.cd5 Bd5 25.Bd5 ed5 26.Nf3 Rc4 27.Rc4 dc4 28.Rb4 Rc8 29.Bb2? (better 29.Nd2 c3 30.Ne4=+) 29...Bf8–+ 30.Qc3 Bb4 31.Qb4 Qa5 32.Qe7 Qd5 33.Bc3 Qe6 34.Qb4 f6 (34...Nf6 35.Qb5–+) 35.Qb5 (35.Kh2 Qc6–+) 35...Qc6 36.Qb2 (36.Qb4 Kf7–+) 36...Qa4 37.Qe2 Qc6 38.Nd2 (38.Qe7 Qd5–+) 38...Qd5 (38...b5 39.Nf1–+) 39.Qe7 Rc6 40.f3 Re6 41.Qd8 Kf7 42.Ne4 h6 (better 42...Kg7!? 43.Kh2 h6 44.Bb4–+) 43.Qh8 f5 (better 43...Nf8 44.Qh6 b5–+) 44.Qh7+= Ke8 45.Qg8 Ke7 46.Bb4 Nc5 47.dc5 Qd4 48.Kh2 Qe5 49.Kh1 (better 49.f4 Qf4 50.Ng3 bc5 51.Bc5 Kd7 52.Qf7 Kc6 53.Qe6 Kc5 54.Qg6+–) 49...fe4?? (49...Qa1 50.Kh2 Qe5 (50...fe4?? 51.cb6 Kd7 52.Qf7 Kc6 53.Qe6 Kb5 54.b7+–) 51.f4 A) 51...Qe4 52.c6 Rd6 53.Qg7 Kd8 54.Qf8 (54.Bd6?! Qc6 55.Be5 Qe6+–) 54...Qe8 55.Qd6 (55.Bd6?! Qf8 56.Bf8 Kc7+–) 55...Kc8 56.Bc3 Qe6 57.Qe6 Kb8 58.Qd7 b5 59.Qb7; B) 51...Qf4 52.Ng3 c3 53.Qg7 Kd8 54.Qf8 Re8 55.Qf6 Re7 56.Qb6 Qc7 57.Qg6 c2 58.Qg8 Re8 59.Qd5 Qd7 60.Qa8 Qc8+–) 50.c6+– Rd6 51.Bd6 (better 51.c7 Qa1 52.Kh2 Qe5 53.Kg1 Qd4 54.Kf1 Qa1 55.Kf2 Qb2 56.Kg3 ef3 57.Qh7 Kf6 58.Qh8 Kf7 59.Qb2 Rd3 60.c8Q f2 61.Kf2 Re3 62.Qd7 Re7 63.Qe7 Kg8 64.Qbg7) 51...Qd6=+ 52.Qc4 (52.Qg7 Kd8 53.Qg8 Kc7 54.Qf7 Kc6 55.Qc4 Kd7 56.Qf7 Qe7 57.Qd5 Kc7 58.Qc4 Kd6 59.Qd4 Ke6 60.Qb6 Qd6 61.Qb3 Ke5 62.fe4 Ke4 63.Qf3 Kd4 64.Qd1 Ke5 65.Qe2 Kf6 66.Qf3 Kg7=) 52...Qd1 (52...ef3 53.gf3 Qg3 54.h4 Qf3 55.Kg1 Qd1 56.Kf2-/+) 53.Kh2=+ Qd6 54.Kh1 Qd1 (54...ef3 55.gf3 Qg3 56.h4-/+) 55.Kh2=+ Qd6 56.Kh1 ef3 57.gf3 Kd8 58.c7 Kc8 59.Qg8 Kc7 60.Qg7 Kc6 61.Qh6 Qg3 62.Qc1 Kb7 63.Qf1 g5 64.Qd3 (64.Qg2 Qg2 65.Kg2–+) 64...Qh3-/+ 65.Kg1 Qg3 66.Kf1 Qe5 67.Qd7 Ka6 68.Qa4 Qa5 69.Qe4 Qb5 70.Kf2 Qc5 71.Ke2 b5 72.Qe6 Ka5 73.Qa2 Kb4 (better 73...Kb6!? 74.Qe6 Kc7 75.Qf7 Kd8-/+) 74.Qb2 Ka4 75.Qa2? (better 75.Qa1!? Qa3 76.Qd4 b4 77.Qd1 Qb3 78.Qa1 Kb5 79.Qe5 Kc6 80.Qe8 Kd6 81.Qd8 Kc5 82.Qc8 Kd4 83.Qh8 Kc4 84.Qc8 Kb5 85.Qb7 Ka5 86.Qa7 Kb5 87.Qb7 Kc4 88.Qc8 Kd4 89.Qh8 Kc4 90.Qc8=) 75...Qa3–+ 76.Qc2 Qb3 77.Qd2 Qe6 78.Kd1 Qf6 79.Qa2 Kb4 80.Ke2 0–1. Makarova,Darya (1890) – Mukhina,Jana (2040), Sochi RUS (5), 2018. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d6 5.Bb2 0-0 6.Be2 b6)

7.c4 Nbd7 8.0-0 c5 9.bc5 bc5 10.dc5 Nc5 11.Nbd2 Rb8 12.Rb1 Bf5 13.Bf6 Rb1 14.Nb1 Bf6 15.h3 Qc7 16.g4 Be4 17.Nd4 Rb8 18.Nc3 a6 19.f3 Bc6 20.Qc2 Bd7 21.Nd5 Qa5 22.Nf6 ef6 23.Nb3 Nb3 24.ab3 Qb4 25.Rb1 a5 26.Bd3 a4 27.ba4+/- Qb1 28.Qb1 Rb1 29.Bb1 Ba4 30.Bd3 Kf8 31.f4 Ke7 32.Kf2 Bc6 33.h4 Ke6 34.e4 h6 35.Ke3 g5 36.hg5 fg5= 37.fg5 hg5 38.Kd4 f6 39.c5 dc5 40.Kc5 Ba8 41.Kd4 Bb7 42.Be2 Kd6 43.Bf3 Bc6 44.Bg2 Bb5 45.Bf3 Ba4 46.Be2 Bc6 47.Bf3 Ke6 48.Kc5 Ba8 49.Kd4 Bb7 50.Bd1 Ba6 51.Bb3 Kd6 52.Bd1 Bb7 53.Bf3 Ba6 54.Bd1 Bb7 55.Ba4 Ba6 56.Bd1 ½–½. Fournier,Frederic – volgadrac, Active (5/0), 2005.

7.c4 Nbd7 8.b5 Ne4 9.Nbd2 Bb7 10.Ne4 Be4 11.Qb3 e5 12.0-0 Qe7 13.Rfe1 Bb7 14.a4 Kh8 15.a5 e4 16.Nd2 Rab8 (16...ba5 17.Ra5 a6 18.Rea1+=) 17.ab6+/- ab6 18.Ra7 h5 19.Qc2 f5 20.d5 Ne5 (20...Bb2 21.Qb2 Qg7 22.Qg7 Kg7 23.Nb3+/-) 21.Nb3 Rf7 22.Nd4 Ng4 (22...Bc8!?+/-) 23.Ne6 Be5 24.h3 Qh4 25.Bg4 hg4 26.g3 Qf6 (26...Qh3?? 27.Ng5+–) 27.Be5 de5 28.h4 (28.hg4!? fg4 29.Rea1 Kh7+–) 28...Bc8 29.Ng5 Re7 30.Rea1 Bb7 31.Qa4 Ree8 32.Qb4 Qe7 33.Qc3 Kg8 34.Ne6 Qd6 35.R1a4 Kf7 36.Kg2 Kg8 37.Ra1 Kf7 38.R1a2 Kg8 39.Rd2 Re7 40.Rc2 Bc8 41.Ng5 Bb7 ½–½. Mehlhorn,Uwe (2165) – Hoffmeyer,Falk (2235), Oberliga Ost–A, 2000.

6.d4 c5

7.b5 cd4 8.ed4 d5 9.0-0 Nbd7 10.Nbd2 Nb6 11.c4 dc4 12.Nc4 Be6 13.Nce5 Rc8 14.a4 Nfd7 15.a5 Ne5 16.Ne5 (worse 16.ab6 Nf3 17.Bf3 Qb6-/+) 16...Nc4 17.Nc4 Bc4 18.a6 b6 19.Rc1 Qd5 20.Bc4 Rc4 The pressure on the isolated pawn grows 21.Qe2 Rc1 22.Rc1 (worse 22.Bc1 e6=+ (worse 22...Qd4 23.Qe7 Ra8 24.Qb7+/-)) 22...Qa2 23.h3 (23.Ra1 Qd5=) 23...Bd4=+ 24.Rc2 (24.Bd4 Qe2 Pinning (24...Qe2 Deflection)) 24...Bc5 25.Rd2 Qb1 26.Rd1 Qf5 27.Bd4 Bd6 28.Rc1? (better 28.Qd3!?-/+) 28...Qf4-+ 29.Qb2 Qh2 30.Kf1 Qh1 31.Ke2 Qg2 32.Qb3 Qe4 33.Be3 Qf5 34.Qc4 (34.Bd2 Bc5 35.Qf3 Qe6 36.Be3 Rd8-+) 34...Qh3 35.Qc6 Qf5 36.Bb6 (36.Qc4-+) 36...ab6 37.a7 (37.Kf1 Rd8 38.Qb6 Qd3 39.Kg1 Bf4-+) 37...Kg7 (better 37...Qe6 38.Kf1 Qh3 39.Ke1-+) 38.a8Q (38.Qb6 Ra8 39.Qd4 Be5 40.Qc5-+) 38...Ra8 39.Qa8 Qb5 40.Kf3 Qf5 (better 40...Qh5 41.Ke3 Qg5 42.Ke2 Qc1-+) 41.Ke2 Bc5 (better 41...Qe5 42.Kd3 Qb5 43.Rc4 Qb3 44.Rc3 Qd1 45.Kc4 Qf1 46.Kb3 Qb1 47.Kc4 b5 48.Kd4 e5 49.Kd5 Qh1 50.f3 Qd1 51.Kc6-+) 42.Qf3 Qf3 43.Kf3 f5 44.Rd1 g5 45.Rd5 Kg6 46.Rd7 h5 Black prepares g4 47.Rd8 h4 48.Rg8 Kf6 49.Rh8 g4 50.Ke2 (50.Kg2 h3 51.Kf1 b5-+) 50...h3 51.Rh6 (51.Kf1 b5-+) 51...Kg5 (51...Kg7 52.Rh4 Kg6 53.f3-+) 52.Rh7 (52.Rh8 Bd4 53.Rg8 Kh5-+) 52...Kf4 (better 52...Kg6!? 53.Rh8 Bd4 54.Rg8 Kh7 55.Rc8-+) 53.Rf7 e5 54.Rh7 e4 55.Rh5 (55.Ra7 Bd6 56.Rh7 e3 57.fe3 Kg3-+) 55…b5 0-1. Berchenko,Sergey (2045) - Burnett,R (2325), 120th US Open Seniors, 2019. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 0-0 5.Bb2 d6 6.Be2)

7.b5 cd4 8.ed4 d5 9.0-0 Ne4 10.Nbd2 Nd6 11.a4 Be6 12.Ne5 Nd7 13.Nb3 Rc8 14.Nd7 Bd7 15.Ba3 Bf5 16.Bd3 Bd3 17.Qd3 Qc7 18.Ra2 Rfd8 19.Re1= e6 20.h3 Nf5 21.Rd1 Qc4-/+ 22.Bc1 Nd4!–+ 23.Qc4 Rc4 24.Nd4 Bd4 25.Be3 Be3 26.fe3 Rdc8 27.Rd2 Rb4 28.Rd1 Rcc4 29.Rda1 Rc3 30.Kf2 Rbc4 31.Rc1 h5 32.a5 Rb4 33.b6 ab6 34.ab6 Rb6 35.Re1 Kg7 36.Re2 Rb4 37.Ke1 h4 38.Kd2 Rc7 39.Ra1 g5 40.Rg1 Kg6 41.g3 hg3 42.Rg3 f6 43.Rg4 Rg4 44.hg4 Rc4 45.Rg2 b5 46.c3 Kf7 47.Kd3 Ke7 48.Rb2 Rg4 49.Rb5 Kd6 50.Rb1 Ke5 51.Re1 f5 52.Rf1 Rg2 53.Rc1 Rg3 54.c4 dc4 55.Rc4 f4 0–1. Priyadharshan,K (2135) – Sturua,Z (2520), 8th Dubai Open, Dubai UAE, 2006.

7.b5 cd4 8.Bd4 a6 9.a4 e5 10.Bb2 ab5 11.ab5 Ra1 12.Ba1 Bf5 13.c4 Nbd7 14.Nc3 Nb6 (14...Qc7 15.0-0=+) 15.0-0 Qc7 16.Nd2 Ra8 17.Qb3 Be6 18.e4 (18.Rd1!?=) 18...Bh6-/+ 19.Qd1 (better is 19.Qc2!?-/+) Ra1!–+ (19...Ra1 20.Qa1 Bd2–+) 0–1. pumpkin (2515) – scuomo, net–chess.com, 2004.

7.b5 Nbd7 8.0-0 cd4 9.Bd4 Nc5 10.Nbd2 Bf5 11.Nb3 Qc7 12.c4 Rfd8 13.Nh4 Bd7 14.a4 e5 15.Bb2 Be6 16.Nf3 Nfe4 17.Nc5 Nc5 18.Ng5 Bf5 19.Bg4 Bd3 20.Be2 Be2 21.Qe2 Rac8 22.Qd1 Qe7 23.Nf3 Qe6 24.Rc1 e4 25.Ng5 Qe7 26.Bg7 Kg7 27.Nh3 Nd3 28.Rc2 Qe6 29.f3 h6 30.Nf2 Nf2 31.Qd4 Qe5 32.Kf2 ef3 33.gf3 Kf8 34.f4 Qh5 35.Kg1 Qc5 36.f5 Qd4 37.ed4 g5 38.h4 Re8 39.c5 Re4 40.hg5 hg5 41.c6 bc6 42.Rc6 Rd8 43.Rc7 Re7 44.Rfc1+/- Rdd7 45.Rd7 Rd7 46.f6 Kg8 47.Re1 Kf8 48.a5 Rb7 49.Re7! Rb5 50.Ra7 Kg8 51.Ra8 Kh7 52.a6 Ra5 53.a7 Ra2 54.d5 Ra1 55.Kg2 Ra3 56.Kf2 Ra4 57.Kf3 Ra1? 58.Kg4+– Ra5 59.Kh5 Ra3 60.Kg4 Ra4?? 61.Kf5 Ra5 62.Ke4?? Ra4+/- 63.Kd3 Ra5 64.Kc4 Rc5?? 65.Kb4+– Rc7 66.Kb5 Rc5 67.Kb6 (67.Kb6 Rc4 68.Rh8 Kh8 69.a8Q Kh7 70.Qf8+–) 1–0. Levin,Naum L – Bannik,Anatoly, UKR–ch Kiev, 1959.

7.c3 Nbd7 8.Nbd2 b6 9.0-0 Bb7 10.a4 Qc7 11.Qb3 e5 12.Rfd1 Rfe8 13.de5 Ne5 14.a5 Nf3 15.Bf3 Bf3= 16.gf3 d5 17.c4 Rad8 18.ab6 ab6 19.cd5 Nd5 20.Bg7 Kg7 21.bc5 bc5 22.Qb2 Kh6 23.Ra4 Nb4=+ 24.Rc1? Qd7-/+ 25.Rc4? Qd2?? 26.Rh4= Kg5 27.Rg4 Kh6 28.Rh4 Kg5 29.Rg4 Kh6 ½–½. Neagos,R (2070) – Barzanu,I (2265), ch–ROU, Cluj ROU, 2008.

7.dc5 dc5 8.Qd8 Rd8 9.bc5 Nbd7 10.c6 bc6 11.Nbd2 Nb6 12.a4 Bf5 13.a5 Nbd5 14.Nd4 Ne4 15.Nc4 (15.Nf5? Bb2 (15...gf5?! 16.Bg7 Kg7 17.Bf3=) 16.Ne4 Ba1–+) 15...Bd7 16.Bf3 Ng5 17.Bd1 Rab8 18.0-0 Ne4 19.Bf3 Nec3 20.Ra3 c5 21.Nb3 (21.Rc3? Nc3 (21...cd4?! 22.Rb3=) 22.Bc3 cd4 23.Bd4 Bd4 24.ed4 Bb5–+) 21...Bb5 22.Nbd2 Ba6 23.Rb3 Rb4 24.Ra1 Rc4 25.Nc4 Bc4 26.Rb7 a6 27.g4 e6 28.Kg2 h6 29.h4 Bf6 30.Kh3 Kg7 31.g5 hg5 32.hg5 Be5 33.Ra3 Rh8 34.Kg4 Rh2 35.e4?? (35.Bd5 Bd5 36.Bc3 Bc3 37.Rf7 Kf7 38.Rc3 Rg2 39.Kh4–+) 35...Bf1 (35...Rf2?! 36.ed5 Rc2 37.Bc3 Rc3 38.Rc3 Bc3 39.d6 Ba5 40.Rc7+=) 36.Bd1 Bh3 37.Kf3 Bg2 38.Kg4 Be4 39.Rd7 Rf2 40.Rd5 Bf5 41.Kh4 Rh2 (41...Nd5?! 42.Be5 f6 43.gf6 Nf6 44.Rb3-/+) 0–1. Poley,Vladimir (2325) – Butunoi,Alexandru (2370), St Lorrain, 2007. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 c5)

7.dc5 dc5 8.Qd8 Rd8 9.bc5 Ne4 10.Bg7 Kg7 11.Nbd2 Nc5 12.0-0-0 Nc6 13.Nb3 Rd1 14.Rd1 Ne4 15.Rf1 Nc3 16.Kb2 Ne2 17.Re1 Bg4 18.Nbd2 Rd8 19.Re2 Ne5 20.Kc3 Nf3 21.gf3 Be6 22.Re1 Rd5 23.Rb1 b6 24.Rb4 Rh5 25.Ra4 a5 26.h4 Rc5 27.Kb2 Kh6 28.a3 Rb5 29.Kc1 Rc5 30.Re4 Kg7 31.Rd4 Rd5 32.Re4 Rc5 33.Rd4 Rd5 34.Re4 Rd6 35.Rf4 f6 36.Ne4 Rc6 37.Ng3? Rc4 38.Rc4=+ Bc4 39.f4 Kf7 40.Kd2 Ke6 41.f5 gf5 42.Kc3 Bb5 43.Kd4 Bd7 44.c4 Kd6 45.Ne2 e5 46.Kc3 Bc6 47.f4 Bf3 48.Nc1 Be4 49.Nb3 Kc6 50.Nd2 Bg2 51.Nb3 Bf1 52.Nc1 Kd6 53.Nb3 Kc6 54.Nc1 b5 55.cb5 Kb5 56.Nb3 a4 57.Nd2 Be2 58.Nb1 Kc5 59.Kd2 Bh5 60.Nc3 Be8 61.Ne2 Kc4 62.Kc2 Bc6 63.Ng3 Bf3 64.Nf1 Be4 65.Kd2 Kb3 66.Ng3 ef4 67.ef4 Ka3 68.Kc3 Ka2 69.Nf1 Kb1 70.Kb4 Bc2 71.Ka3 Kc1 72.Ng3 Kd2 73.Nh5 Ke3 74.Nf6 h6 0–1. Mufic,Go (2310) – Iwanow,A (2095), B2 Masters Marianske Lazne CZE, 2011.

7.bc5 dc5

8.0-0 Qb6 9.Qc1 Nc6 10.Nbd2 cd4 11.ed4 Nd5 (11...Bf5 12.Nc4 Qc7 13.Ne3=) 12.Nb3= Qc7 13.g3 Nb6 (13...Bg4 14.c4 Nb6 15.a4=) 14.a4 Bg4 15.a5 Nc4 16.Bc4 Bf3 17.Qe3 Nb4 18.Qc3 (18.Nd2 Bg4=) 18...Rac8 19.Nd2 Be2 20.Qb4 (worse is 20.Be2 Qc3 21.Bc3 Rc3-/+) 20...Bc4 21.Nc4 Qc4 22.Qe7 (22.Qc4 Rc4 23.c3 e6=) 22...Qc2 (22...Qb5 23.Rab1 Rfe8 24.Qd6+=) 23.Rab1+= (23.Qb7? Rb8 24.Qa7 Rb2–+) 23...Rfe8 24.Qd7 Rcd8 25.Qb5 a6 26.Qb4 Qf5 27.Bc3 Rd7 28.Rfe1 Red8 29.Rbd1 h5 30.Qb1 (30.Re3 h4=) 30...Qd5 (30...Qb1 31.Rb1 Rc7 32.Rb3-/+) 31.h4 Bf6 32.Re3 (32.Qe4 Rc7 33.Qf4 Qd6=) 32...Kg7 (32...Rc8 33.Qb2+=) 33.Qe4= Qe4 34.Re4 Rc8 35.Re3 Rc4 36.Kg2 Rdc7 (36...Bd4? 37.Ba1 Ra4 38.Red3 Ba1 39.Rd7 Ra5 40.Rb7+–) 37.Rdd3 Rd7 38.Kf3 (38.Rd1 Rd5= (worse is 38...Bd4 39.Ba1+–)) 38...Rd5 39.Ke4 (39.Rd1 Rb5=) 39...Re5+= 40.Kf3 Rf5 41.Ke2 Rc3 42.Rc3 Bd4 43.Rc7 Be3 44.Ke3 Rb5 45.f3 Kf6 46.g4 Ke6 47.g5 Ra5 48.Rb7 Rb5 49.Ra7 a5 50.Ra6 Kd5 51.Ra7 (51.Kd3!?+=) 51...Kc4-/+ 52.Rf7 a4 53.Rf6 a3 54.Rg6 Ra5 55.Rc6 Kd5 (better is 55...Kb4–+) 56.Rc1= a2 57.Ra1 ½–½. Fernandez,Daniel Howard (2450) – Annaberdiev,Meilis (2425), GM Round Robin Riblje Ostrvo, 2016. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 c5 7.bc5 dc5)

8.0-0 cd4 9.ed4 Nc6 10.c4 Qb6 11.Qb3 Ne4 12.Rd1 Rd8 Can d4 get defended? 13.Nbd2 Nc5 14.dc5 Qb3 15.Nb3 Bb2 16.Rd8 Nd8 17.Rb1 Bc3 18.Nbd4 a6 19.Rb3 Ba5 20.c6 bc6 21.Ne5 Bb7 22.c5 Bc7 23.Nd7 a5 24.a4 (24.Re3 e6=+) 24...Kg7 25.Bc4 (25.Re3!? e6 26.Bf3=+) 25...Bc8-/+ 26.Nb6 Rb8 27.Nc8 Rc8 28.g3 Rb8 29.Kf1 Rb3 30.Nb3 e5 31.Ke2 f5 32.f3 Kf6 33.Kd3 h5 34.Ba6 g5 (34...Ke7 35.Kd2-/+) 35.h3 (35.Bc8!?=+) 35...h4-/+ 36.g4 Ne6 37.gf5 (37.Ke3!? Nf4 38.Bc8 Nh3 39.Bf5 Ke7-/+) 37...Nf4-+ (37...Kf5?! 38.Bc8=+) 38.Ke3 Nh3 39.Nd2 Nf4 40.Bc8 (40.Bb7 Nd5 41.Kf2 Ne7-+) 40...h3 41.Ne4 Kg7 42.f6 Kg6 43.Bd7 h2 44.Be8 Kh7 45.Nf2 Nd5 46.Kd2 (46.Ke2 Bb8 47.Nh1 Nc3 48.Kf2 Na4-+) 46...Nb4 (46...Nf6!? 47.Bc6 Bb8 48.Kd3-+) 47.Ke2 e4! 48.fe4?? (48.Ne4 h1Q Decoy; 48.fe4 Be5 Combination) 48...g4! 49.Nh1 (49.Ng4 h1Q Combination) 49...g3 50.Kf3 Nc2 51.e5 Be5 (51...Be5 52.Bc6 Nd4 53.Kg2 Nc6-+) 0-1. Bryzgalin,K (2435) - Santos Latasa,J (2580), Rome City Open, 2018. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2)

8.0-0 cd4 9.Nd4 (9.ed4 Qb6 10.Ba3 Nc6=) 9...Qb6 10.Ba3 (10.Qc1 Bg4=) 10...Nc6 (10...Qc7 11.Nb5 Qe5 12.Qd4=) 11.Nc6 bc6 12.Be7 Re8 13.Ba3 (better is 13.Bf6!? Bf6 14.Nd2 Ba1 15.Qa1+=) 13...Nd5-/+ 14.c3 Bc3 (worse is 14...Nc3 15.Nc3 Bc3 16.Rb1+=) 15.Nc3 Nc3 16.Qc2 Ne2 17.Qe2 Ba6 18.Qc2 Bf1 19.Qc3 (19.Rf1 Re5-/+) 19...c5! 20.Rf1 (20.Bc5 Qe6 Combination; 20.Qc5 Ba6 Decoy) 20...Rac8 21.h4 (21.Bb2 f6!-/+) 21...f6–+ 22.h5 (22.Rd1 Qa6–+) 22...Kf7 (22...gh5 23.Bb2–+) 23.Rd1 Red8 (23...gh5 24.Qc2 Rh8 25.Rd7 Ke8 26.Qf5+=) 24.Rd8 (24.Qc2 Rd1 25.Qd1 Qe6–+) 24...Qd8 25.Qc4 (25.Qc2 c4–+) 25...Kg7 26.f3 (26.Qa4 Rc7–+) 26...Qe7 (26...Qd1 27.Kh2 Qd6 28.f4–+) 27.Kf2 (27.Bc1 gh5 28.e4 h4–+) 27...Qe5 (27...gh5 28.Bb2–+) 28.hg6 hg6 29.f4 Qd6 30.Kf3 (30.Qc2 Qd5–+) 30...Qc6 (30...Qd1 31.Kg3–+) 31.Kg3 (31.e4 Qd7–+) 31...Rc7 (31...Qd7 32.Bb2–+) 32.Kh2 (32.e4 Qd6–+) 32...Qe8 (32...Qd6 33.Bb2–+) 33.e4 Qf7 (33...g5 34.Bc1–+) 34.Qc3 g5 35.Bb2 (35.fg5 Qh5 36.Kg3 Qg5 37.Kf3 Kh7–+) 35...gf4 36.e5 (36.Qf3 Re7 (36...Qa2?! 37.Bf6 Kf7 38.Qf4-/+) 37.Qf4 Qg6–+) 36...Qh5 (36...Qa2 37.ef6 Kg6 38.Qe5 Rh7 39.Kg1 Qb1 40.Kf2 Qc2 41.Qe2 Qe2 42.Ke2–+) 37.Kg1 Qd1 38.Kh2?? (38.Kf2–+) 38...Kg6 39.Kh3 0–1. Irizanin,Radoje (2345) – Markus,Robert (2670), 11. ch–SRB, 2017. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 0-0 5.Be2 d6 6.Bb2 c5 7.bc5 dc5)

8.c4 b6 9.Nbd2 e6 10.Nb3 cd4 11.ed4 Bb7 12.0-0 Nc6 13.Nfd2 Qd7 14.Bf3 Rfd8 15.Qe2 a5 16.Rad1 Rac8 17.Nb1 Ba6 18.d5 ed5 (better is 18...Nb4 19.de6 Qe6 20.Qe6 fe6+=) 19.Bd5 (better is 19.Bf6 Bf6 20.Bg4+=) 19...Nd5 20.Bg7 Kg7 (better is 20...Ncb4!? 21.Rd4 a4–+ (21...Kg7?! 22.Rfd1–+)) 21.Qb2+= Kg8 22.Rd5 Qg4 23.Rd8 Rd8 24.h3 Qc4 25.Rc1 Qe6 26.Qc3 (26.Nc3!?-/+) 26...Nb4–+ 27.Re1? (better is 27.Qc7 Rc8 28.Qf4 Rc1 29.Qc1 Na2 30.Qd1–+) 27...Na2 28.Re6 Nc3 29.Rb6 Rd1 (29...Rd1 30.Kh2 Rb1 (30...Nb1?! 31.Ra6 Nd2 32.Na5+=) 31.Ra6 Rb3 32.Ra5 Kg7–+; 29...Nb1?! 30.Ra6 Rd1 31.Kh2+=) 0–1. Savchenko,Alekseij (2200) – Bracker,Arne (2160), GER–chT U20 Arendsee, 2008. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 d6 5.b4 0-0 6.Bb2 c5)

8.c4 Qb6 9.Qb3 Qb3 10.ab3 Nc6 11.0-0 Rd8 12.Rd1 Bf5 13.Na3 Ne4 14.Nb5 cd4 15.Nbd4 Nd4 16.Bd4 Nc3 17.Bc3 Rd1 18.Rd1 (worse is 18.Bd1 Bc3 19.Ra4 Rd8+=) 18...Bc3 19.Nd4 Bd4 20.Rd4 e5 21.Rd5 f6 22.Bf3 e4 23.Be2 Be6 24.Rd4 f5 25.Kf1 ½–½. Kaufmann,Benjamin (1750) – Nuber,Korbinian (2000), GER–ch U16 Willingen, 2004. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 c5 7.bc5 dc5)

8.c4 cd4 9.ed4 Qb6 10.Qc1 (10.Qb3!?=) 10...Nc6 11.0-0 Ne4 d4 seems the pivot of the position 12.Nbd2 Bd4 13.Bd4 Nd4 14.Nd4 Qd4 15.Ne4 Qe4 16.Bf3 Qe5 17.Re1 Qc7 18.Rb1 Rd8 19.Qg5 (19.Qe3 e6=) 19...f6+= 20.Qe3 e5 21.Bd5 Kg7 22.Rb5 a6 23.Rb6 Rd6 24.Rb2 Rb8 25.f4 ef4 26.Qf4 Rd7 27.Qc7 Rc7 28.Re8 b5 29.Kf2 f5 30.a4 (30.Ke3 Kf6=) 30...b4+= 31.Ke3 a5 32.Kd4 b3 (32...h6 33.c5+=) 33.Kc3 Rb4 Attacks the isolani on c4 34.Rb3 Ra4 35.Rb6 Ra3 36.Kd4 f4 37.c5 Ra4 38.Ke5 Rc5 39.Rc6 Rd5 40.Kd5 Bg4 (40...Bf5!? 41.Rc7 Kh6+=) 41.Rc7= ½–½. Gounant,Stanislas (1800) – Skwarczylo,Marek (1940), FICGS, 2010.

8.c4 cd4 9.ed4 Bf5 10.0-0=.

8.c4 e6 9.0-0 b6 (9...cd4 10.ed4 Nc6 11.Re1=) 10.Nc3 (10.dc5 bc5 11.Qc2 Nc6+=) 10...Bb7 (10...cd4 11.Qd4 Nd5 12.Ne5=) 11.dc5+= bc5 12.Qb3 (12.Qc1 Qe7=) 12...Qe7 13.Rad1 (13.Rab1 Nc6=) 13...Nc6 14.Nb5 Rfd8 15.Rd8 Rd8 16.Rd1 Ba8 17.Rd8 Qd8 18.Qa3 Qb6 19.h3 a6 20.Nc3 Nd7 21.Qb3 Na5 22.Qc2 Bc6 23.Nd2 Qb7 24.Bf1 Qb4 25.Qc1 Nb7 26.Qc2 Nd6 27.Qc1 Nb7 28.Ndb1 Nd6 29.Nd2 Nb7 30.Ncb1?? Nd6 (better is 30...Bb2 31.Qc2 Nd6–+) ½–½. Sochagin,Alexander (2220) – Bryndin,Alexey (2270), St Petersburg–chT, 2003.

8.dc5 Qa5 9.Qd2 Qc5 10.0-0 Bf5 11.c4 Nc6 12.Nc3 Rfd8-/+ 13.Qc1 Nb4 14.Ba3 Qa5 15.Nd4= Rd4?? 16.Bb4+/- Qb4 17.ed4 Ne4 18.Ne4+– Be4 19.Qe3 Bf5 20.Rfd1 Rd8 21.Rac1 Qb6 22.d5 Qe3+/- 23.fe3 Bb2 24.Rb1 Bb1 25.Rb1 Ba3 26.Rb7 Bc5 27.Kf1 Kf8 28.e4 h5 29.h3 h4 30.Bg4 Bd4 31.Ke2+– Bb6 32.a4 Bc5 33.Rc7 Bb6+/- 34.Rc8 Ke8 35.Rd8 Kd8 36.Kd3 Kc7 37.e5+/- Bc5 38.Ke4 Bf2 39.Kd3 (better is 39.a5!?+/-) ½–½. Ruhle,Ernst Albrecht (1685) – Demml,Roland (1850), Seefeld op, 1993.

6.d4 c6

7.0-0 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 b5 11.c4 Ba6 12.cb5 Bb5 13.Bb5 cb5 14.Nc3 Qb6 15.Qd3 Nc6 16.Qb5 Qb5 17.Nb5 Nb4 18.Bc3 Nbd5 19.Bd2 Ne4 20.Ra1 Rb8 21.Na3 e5 22.de5 Be5 23.Ne5 de5 24.Be1 Nb4 25.Rb1 Nc6 26.Rc1 Ne7 27.f3 Nf6 28.Rc5 e4 29.Bc3 Nfd5 30.Be5 Ra8 31.fe4 Ne3 32.Nb5 Ng4 33.Bd4+/- Rd8 34.h3 Nh6 35.Bf6 Rd7 36.Nc7 Kf8 37.Nd5 Nhg8 38.Bg5 Nd5 39.Rc8 Kg7-/+ 40.ed5 h6 41.Be3 Rd5 42.Rc7 Rd1 43.Kf2 Rd6 44.Kf3 Rf6 45.Kg3 h5 (45...h5 46.Bd4 Nh6+/-). komorowwskij (1715) – joanarev, kurnik, 2012.

7.0-0 a5 8.a3 Nbd7 9.Nbd2 Nb6 10.c4 Bd7 11.c5 Nbd5 12.e4 Nf4 13.Re1 Ne2 14.Qe2 Nh5 15.Nc4 ab4 16.ab4 Bg4 (16...Ra1 17.Ra1 d5 18.Nb6+=) 17.h3 Be6 18.Ra8 Qa8 19.Ra1 Qb8 20.Nb6 dc5 21.dc5 Bb2 22.Qb2 Qf4 23.Qe2 Qf6 24.Rd1 Qc3 25.Qd2 Qb3 26.Nd4 Qa3 27.Ne6 fe6 28.f3 Qb3 29.Qd4 Nf4+/- 30.Rd2 Qb1 31.Kh2 Qf1 32.Qc4 Qe1 33.Qa2 Qh4 34.Qb3 Qf6?? 35.Nd7+– Qf7 36.Nf8 Kf8 37.Rd8 Kg7 38.Qc3 Kh6 39.Qh8 g5 40.Qf8 Qf8 41.Rf8 Nd3 42.Rb8 Nb4 43.Rb7 Nd3 44.Rb6 Ne5 45.Rb7 Nd3 46.Re7 Nc5 47.Rc7 1–0. Fournier,Frederic (1880) – Stolovitch,Claude (1955), FRA Ch (Team) N3 NoisyLeGrand–Senlis, 2009.

7.0-0 Na6 8.a3 Nc7 9.Nbd2 d5 10.c4 Bg4 11.h3 Bf3 12.Bf3 (worse is 12.gf3 b5 13.cb5 cb5+=) 12...e5 13.de5 Nd7 14.Rb1 Ne5 15.Be5 Be5 16.cd5 cd5 17.Qe2 a6 18.a4 b5 19.ab5 ab5 20.Qd3 Ra4 21.Bd1 Ra7 22.Nf3 Qf6 23.Ne5 Qe5 24.Bf3 Rfa8 25.Rfd1 Ra1 26.g3 R8a3 27.Qf1 R1a2 28.Qe1 h5 29.h4 g5 30.hg5 Qg5 31.Bg2 (31.Rbc1 Qf5 32.Bg2 Ra7+/-) 31...Qe5 32.Rd4 Rc2 33.Rbd1 Raa2 34.R4d2 Rd2 35.Rd2 Qc3 36.Rd1 Qe1 37.Re1 Rd2 38.Rc1 Ne6 39.Rc8 Kg7 40.Rb8 d4 41.ed4 (better is 41.Rb5!? Rb2 42.Bf3+/-) 41...Nd4= 42.Rb7 Rb2 43.Bd5 Rb4 44.Bf7 h4 45.Bd5 Kf6 46.gh4 Ke5 47.Bf7 Nf3 48.Kf1 Nh4 49.Be8 Rb1 50.Ke2 b4 51.Kd3 ½–½. Van den Berg,Leen (1810) – De Reymaeker,Walter (2045), Antwerp op, 2003. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 d6 5.b4 0-0 6.Bb2 c6)

7.0-0 Qb6 8.a3 a5 9.c3 Bg4 10.Nbd2 d5 11.h3 Bf3 12.Bf3 Nbd7 13.Nb3 a4 14.Nc5 Qa7 15.c4 b6 16.Nd7 Qd7 17.Rc1 b5 18.cb5 cb5 19.Qd3 Rfb8 20.Rc5 Rb7 21.Rfc1 e6 22.Qc2 Bf8 23.Rc6 Rd8 24.Kf1 Ne8 25.e4 de4 26.Qe4 Nf6 27.Qc2 Nd5 28.Rc8 Rc8 29.Qc8 Qc8 30.Rc8 Rc7 31.Rc7 Nc7 32.Ke2 Bd6 33.Bc6 Kf8 34.d5 ed5 35.Bf6 Bf4 36.Kd1 Ne8 37.Bd4 Nc7 38.Bc5 Kg7 39.Bb6 Kf6 40.Bc7 Bc7 41.Bb5 Ke5 42.Ba4 Kd4 43.Kc2 Kc4 ½–½. Sergeev,Vladimir (2485) – Panocki,Adrian (2270), Rewal op–A Poland, 2007. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2 c6)

7.0-0 Qc7 8.c4 Nbd7 9.Qb3 e5 10.de5 de5 11.Nc3 Nb6 12.e4 Nh5 13.a4 Be6 14.a5 Nd7 15.Ng5 Nf4 16.Ne6 Ne6 17.Na4 Nd4 18.Bd4 ed4 19.Bd3 Ne5 20.Rad1 Nd3 21.Rd3 b6 22.f4 ba5 23.ba5 Qa5 24.f5 Rab8 25.Qa2 c5 26.Ra3 Qb4 27.h4 gf5 28.ef5 Bf6 29.Rh3 Kh8 30.g4 d3 31.Rd3-/+ Bd4 32.Kg2 Qb7 33.Kh3 Qe4 34.Rdf3 Rfe8 35.Nc3 Qe5 36.Nd5?? Rb2–+ (37.Qb2 Bb2–+) 0–1. Bobu,Adrian (2210) – Berbecea,Alexandru, Revelion op Romania, 1999.

7.0-0 Nbd7 8.a4 Qc7 9.c4 a6 10.Nc3 Re8 11.b5 e5 12.d5 c5 13.a5 Nf8 14.b6 Qd8 15.Qa4 Bd7 16.Qd1 h5 (16...Bc8!?=) 17.h3 (17.e4 Bg4+/-) 17...N8h7 (17...e4 18.Nd2+=) 18.e4+/- g5 19.Bc1 (19.Nh2 Qc8+/-) 19...g4 20.Ng5 Ng5 21.Bg5 Qc8 (21...gh3 22.Bh5 hg2 23.Kg2+/-) 22.hg4+/- Bg4 23.f3 Bh3?? (better 23...Bd7+/-) 24.gh3+- Qh3 25.Kf2 Qh2 26.Ke3 Kh7 27.Rh1 Qg3 28.Qg1 (better 28.Bf6 Bf6 29.Rh5 Kg6+-) 28...Ng4 (28...Qg5 29.Qg5 Bh6 30.Qh6 Kh6+-) 29.Kd2 Qg1 30.Rag1 Nf2 (30...f6 31.Rh5 Kg6 32.Bf6 Bf6 33.fg4 Bg5 34.Kd3 Rg8+-) 31.Rh5 (31.Rh5 Kg6 32.Rh4+-) 1-0. muhammadaudii (2125) - Ali__Alhasan (2140), lichess.org, 2020.

7.0-0 Nbd7 8.Nbd2 Re8 9.c4 Qc7 10.a4 e5 11.de5 de5 12.b5 (12.e4 a5 13.ba5 Ra5+=) 12...e4=+ 13.Nd4 c5 14.N4b3 Ne5 15.Be5 Qe5 16.Rc1 b6 17.a5 Be6 18.ab6 ab6 19.g3 Red8 20.Qc2 Bh3 21.Rfd1 Qf5 22.Bf1 Bf1 23.Nf1 Ng4 24.Rd8 Rd8 25.h3 Ne5 26.g4 Nf3 27.Kg2?? (27.Kh1 Qe6 28.Nfd2 Ng5-/+) 27...Qe5 (27...Nh4 28.Kg1 Qf3 29.Qe4 Qe4 30.f3 Qf3 31.Rc2 Rd1 32.Rf2 Rf1 33.Kf1 Qd1) 28.Ng3 f5 29.Rd1 Rf8 (29...Rd3!?-/+) 30.gf5= gf5 31.Rd5?? (31.Nd2 Nh4 32.Kf1 Qe6=+) 31...Qf6 (better 31...Qd5! 32.Qe2 Nh4 33.Kf1-+) 32.Rf5?? (better 32.Qe2=+) 32...Nh4-+ 33.Kf1 (33.Kh2 Nf5 34.Ne4 Qe5 35.Kh1 Ne3 36.fe3-+) 33...Nf5 34.Nf5 Qf5 35.Nd2 (35.Ke1 Qg5 36.Qe2 Qg2-+) 35...Qh3 (35...Qf2) 36.Ke1-+ Qh1 37.Ke2 Qh2 (37...Qh5 38.Ke1 Ra8 39.Ne4 Ra1 40.Kd2-+) 38.Ne4 Qh5 39.Kd3 (39.Ke1 Ra8 40.Kd2 Qf3-+) 39...Qf5 (39...Rd8 40.Nd6 Rd6 41.Ke4 Qg6 42.Kf3 Rf6 43.Qf5 Qf5 44.Ke2 Qc2 45.Ke1 Rg6 46.e4 Rg1) 40.f3 (40.Ke2 Re8 41.f3 Rf8-+) 40...Rd8 (better 40...Qf3 41.Nc3 Qf5 42.Kd2 Qf2 43.Ne2 Rd8 44.Qd3 Rd3 45.Kd3 Bh6-+) 41.Ke2 Qh3 42.Qa2 (42.Nf2 Qh2 43.Qc1-+) 42...Qg2 43.Nf2 Rf8 (better 43...Bf6 44.Qb1 Bh4 45.Qf1 Rd2 46.Kd2 Qf1 47.Nd3 Qg2 48.Kd1 Qf3 49.Kd2-+) 44.Qa7 (44.f4 Bf6 45.Qd2-+) 44…Qf3 (44...Qf3 45.Kd2 Qf2 46.Kd3 Qf1 47.Kc2 Rf2 48.Kb3 Qd3 49.Ka4 Ra2) 0-1. muhammadaudii (2000) - rodr0407 (2065), Rated Bullet game, lichess.org, 2020.

7.0-0 Nbd7 8.Nbd2 Re8 9.c4 e5 10.de5 de5 11.c5 (11.e4 a5 12.a3 b6+=) 11...b6 (11...a5 12.a3+=) 12.Nc4+= The pressure on e5 grows 12...bc5 13.Nd6 (worse is 13.Nce5 Ne5 14.Be5 Qd1 15.Rfd1 cb4+=) 13...Re6 (13...Rf8!? 14.bc5 e4+=) 14.Ng5+/- (worse is 14.Nc8 Rc8 15.Bc4 A) worse is 15...cb4 16.Be6 fe6 17.Qd6+= (17.Be5?! Ne5 18.Qd8 Rd8 19.Ne5 c5=); B) 15...Re8+=) 14...Re7 15.Ndf7 Rf7 (better is 15...Qc7!? 16.Nd6 Nd5 17.Nc8 Rc8+/-) 16.Bc4+– (16.Nf7 Kf7 17.bc5 Qe7+=) 16...Nd5 (16...Qe7 17.Bf7 Kh8 18.Bb3+–) 17.Nf7 Kf7 (17...Qf8 18.Ne5! Be5 19.Bd5 cd5 20.Be5+–) 18.Bd5 (18.Bd5 cd5 19.Qd5 Ke8 20.Qa8+–) 1–0. emmasdad – RKoelbach, ChessWorld.net, 2017.

7.c4 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Na6 11.Bc3 Ne4 12.Qb3 Be6 13.Nbd2 Nc3 14.Qc3 b5 15.cb5 cb5 16.Bb5 Qb6 17.Ba6 Qa6 18.Ng5 Rc8 19.Qb2 Qa2 20.Qa2+/- Ba2 21.0-0 h6 22.Nge4 f5 23.Ng3 e5 24.de5 Be5 25.Nf3 Bc3 26.Rc1+/- Be6 27.Nd4 Bb4? 28.Rc8+– Bc8 29.Nge2?? Ba6 30.Nc1 Bd2 31.Ncb3 Bc3 32.f3 Bd4 33.Nd4 d5 34.Kf2 Kf7 35.Ke1 Kf6 36.Kd2 Ke5 37.g3 Kd6 38.Kc3 Kc5 39.Ne6 Kd6 40.Nd4 g5?? 41.Kb4?? Ke5= 42.Kc5 Bf1 43.Nc6 Ke6 44.Nd4 Ke5 45.Nc6 Ke6 46.Kd4 Kd6 47.Nb4 Bc4 48.f4 gf4 49.gf4 h5 50.h4 Ke6 51.Nd3 Kd6 52.Ne5 Ke6?? 53.Nc6 Kd6= 54.Nb4 Ke6 55.Nd3 Kd6 56.Nf2 Ke6 57.Nh3 Kd6 58.Ng5 1–0. Fournier,Frederic – ingeZ, Active, 2007.

7.Nbd2 Nbd7 8.0-0 Qc7 9.c4 b6 ½–½. Grunberg,Mihai (2400) – Horvath,Peter (2430), Tenkes Kupa (Harkany HUN) (5), 2000.

7.Nbd2 Nbd7 8.0-0 Qc7 9.c4 e5 10.Qc2 Re8 (10...ed4 11.Nd4 Ne5 12.Rad1+=) 11.a3 (11.Rfd1 ed4 12.Nd4 Ne5+=) 11...ed4 12.Nd4 a6 (12...Ne5 13.Rfd1+=) 13.h3 (13.c5 Ne5+=) 13...Rb8 (13...c5 14.N4f3+=) 14.a4 (14.c5 dc5 15.bc5 b6 16.cb6 Rb6+=) 14...c5= 15.bc5 dc5 (15...Nc5 16.Bf3=) 16.N4f3 b6 17.Bc3 a5 18.Qb2 Bb7 19.Rad1 (19.Rfd1 Rbd8=) 19...Bc6 20.Qa1 Nh5 (20...Rbd8 21.Nb3=) 21.Bg7 Ng7 22.Nb1 (22.Rfe1 Rbd8=) 22...Nh5 (22...f5 23.Nc3=) 23.Nc3+= Nhf6 (23...Rbd8 24.Nb5 Qb8 25.Qb2+=) 24.Nd5 (24.Rd2 Ne4 25.Ne4 Be4+=) 24...Bd5= 25.cd5 Qd6 26.Bb5 Re7 (worse is 26...Nd5 27.Rd5 Qd5 28.Rd1+–) 27.Rfe1 (27.Bc6 Rc8+=) 27...Rd8 (27...Ne5 28.e4=) 28.Nd2 (28.Qa3 Ne4+= (28...Nd5? 29.e4+–)) 28...Qd5= (worse is 28...Nd5 29.Nc4 Qe6 30.e4+/-) 29.Nc4 Qb7 30.Rd6 The backward pawn on b6 becomes a target 30...Ne8 31.Rd3 Nc7 32.Qb2 Nb5 (32...Ne6 33.Red1 Nef8 34.Qd2+–) 33.Qb5 Rb8 (33...Ra8 34.Red1 Ne5 35.Ne5 Re5 36.Rd7+=) 34.Red1 (34.Rd6 Qc8+=) 34...Ne5= 35.Rd8 Rd8 36.Rd8 Kg7 37.Nb6 c4 (37...Re6 38.Nd5 Qb5 39.ab5+/-) 38.Qc5 (38.Qa5 c3 39.Rc8 Re6+=) 38...Qc7 39.Rc8 Qc5 40.Rc5 Rb7 41.Re5 (41.Nc4 Nc4 42.Rc4 Rb1 43.Kh2 Rb4 44.Rb4 ab4+/-) 41...Rb6+= 42.Ra5 Rc6 43.Rb5 c3 44.Rb1 Ra6 (44...Kf6 45.Kf1+/-) 45.Rc1 Ra4 46.Rc3 Ra2 (46...h5 47.Kf1+/-) 47.g4 h6 48.Kg2 Rb2 (48...Kf6 49.Kf3+/-) 49.h4 Ra2 (49...Kf6 50.Kf3+/-) 50.Rc5 White prepares the advance h5 50...Rb2 (50...Ra4 51.f4+–) 51.Kg3 (51.e4 Rb4 52.f3 Kf6+/-) 51...Re2 (51...Kf6 52.h5+–) 52.Ra5 Rb2 (52...Kf6 53.Ra6 Kg7 54.g5+–) 53.f4 Rb1 54.h5 gh5 55.Rh5 Rg1 56.Kf3 Kg6 57.Ra5 Rf1 (57...f6 58.Ra8+–) 58.Kg2 Rb1 59.Ra6 Kg7 60.Kf3 (60.f5 Re1 61.Kf2 Rh1+–) 60...Rg1 (60...Rf1 61.Ke4+/-) 61.Ra4 Kg6 62.Rb4 Kf6 (62...Rh1 63.Rb6 f6 64.Ra6+–) 63.e4 Rf1 64.Ke3 Re1 (64...Rh1 65.e5 Ke6 66.Rb6 Ke7 67.f5+–) 65.Kf2 Ra1 (65...Rh1 66.e5 Ke6 67.Rb6 Kd7 68.f5+–) 66.e5 Kg6 67.Kf3 (67.Rb6 Kg7+–) 67...Re1 68.Rb6 Kg7 69.Rb8 Kh7 70.Re8 Kg7 (70...Kg6 71.Re7 Rf1 72.Ke4 Re1 73.Kd5 Rd1 74.Kc5+–) 71.f5 Ra1 (71...Rf1 72.Ke3 Re1 73.Kf2+–) 72.f6 Kh7 73.Rf8 Ra7 74.Kf4 Ra4? (74...Rb7 75.Kf5 Ra7+–) 75.Kf5 Ra7 76.Rf7!! (76.Rf7 Rf7 77.e6+–) 1–0. Tregubov,Andrei (2340) – Loskutov,Oleg (2435), Moscow Open, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 c6)

6.d4 Nc6

7.0-0 Nb4 8.a3 Nc6 9.Nbd2 Re8 10.c4 e5 11.de5 de5 12.Qb3 Rb8 13.Rad1 Qe7 14.Nb1 Be6 (14...Bg4 15.h3 Bf3 16.Bf3=+) 15.Nc3 Na5 16.Qa2 Nd7 17.Nd5 Bd5 18.cd5 e4 19.Nd4 Ne5 20.Nb5 a6 21.Nd4 (21.d6 cd6 22.Nd6 Red8 23.Ne4 b5=) 21...Qg5 22.Bc3 Nf3?? (better 22...c5 23.dc6 Nac6 24.Nc6 bc6=+) 23.Nf3?? (23.Bf3 c5 24.dc6 (24.Ba5?! cd4 25.Be2 b6+/-) 24...Bd4 25.h4 (worse 25.ed4 ef3 26.g3 Qf5-/+; worse 25.Rd4 ef3 26.g3 Nc6=; worse 25.Bd4 ef3 26.g3 Qf5-/+) 25...Qh4 26.Rd4 (worse 26.ed4 ef3 27.Qd5 fg2 28.Qg2 Nc6-+; 26.Ba5?! ef3 27.Rd4 Qg5=) 26...Nc6 27.Ra4+-) 23...ef3-+ 24.Bf3 Bc3 25.d6 cd6 26.Rd6 Be5 27.Rd5 Qf6 (27...b5 28.Rd3-+) 28.g3?? (better 28.Ra5 b5 29.a4-+) 28...Nc6 (28...Qf3!? 29.Ra5 Rbd8 30.Qc2-+) 29.Bg2 Rbd8 30.Rfd1 Rd5 31.Qd5 Ne7 (better 31...Rd8!? 32.Qb3 Na5 33.Rd8 Qd8 34.Qc2-+) 32.Qd7 Nf5?? (better 32...Rb8-+) 33.Qe8+- Kg7 34.e4 (better 34.Rd8 Kh6 35.Qf8 Qg7 36.Bb7+-) 34...Nd4 35.Rd4?? (better 35.Rd2+-) 35...Bd4-+ 36.Qd7 (36.h4 Bf2 37.Kh2-+) 36...Qf2 37.Kh1 Qe1 (37...Qg1) 38.Bf1 Qf1 0-1. muhammadaudii (2010) - rijillo2018 (2015), Rated Bullet game, lichess.org, 2020.

7.b5 Nb4 8.a3 Nbd5 9.0-0 c5 10.c4 Nc7 11.dc5 dc5 12.Qc1 Bf5 13.Rd1 Qc8 14.Nc3 Qe6 15.Nh4 Bg4 16.f3 Bh3 17.gh3 Qh3 18.Ng2 Nh5 19.Qd2 Ne6 20.Qd7 Ng5 21.Qb7 Be5 22.f4 Nf4 23.ef4 Bd4 24.Kh1 Nf3 25.Bf3 1–0. Bonetti,Shane – PGHTHRMAL, ICC, 2002.

7.b5 Nb4 8.c3=.

7.b5 Nb8 8.0-0 Bd7 9.Nbd2 a6 10.c4 ab5 11.cb5 c6 12.a4 cb5 13.ab5 Ra1 14.Qa1 Bf5 15.Qa7 Qc8 16.Rc1 Qd7 17.h3 Be4 18.Ne4 Ne4 19.Nd2?? (better is 19.Bd3 d5 20.Qa5+/-) 19...Nd2–+ 20.Qa4 b6?? 21.Qc2= Nf3 22.Bf3 d5 23.Be2 Qd6 24.Qc7 Nd7 25.Qd6 ed6 26.Rc6 Rc8?? 27.Rd6 Nf6 28.Rc6 Rb8 29.Ba3 Ne8 30.Bg4 f5 31.Bf3 Nf6 32.Bd6 Rb7 33.Be5 Ne4 34.Bg7 Kg7 35.Be4 de4 36.Kf1 Kf7 37.f3 ef3 38.gf3 Ke7 39.Ke2 h5? 40.h4 Kf7 41.Kd3 Ra7 42.Rb6 Ra3 43.Ke2 Ra2 44.Kf1 Ra1 45.Kg2 Ra2 46.Kg3 Ra3 47.Kf4 Ra1 48.Rb7 Kf6 49.b6 Rh1 50.Kg3 Rg1 51.Kf2 Rh1 52.Kg2 Rh4 53.Rc7 f4 54.e4 g5 55.b7 g4 56.b8Q gf3 57.Kf3 Rg4 58.Qf8 Kg6 59.Rg7 Kh6 60.Qh8 1–0. mihai740609 – trening0000, kurnik, 2011.

7.b5 Nb8 8.0-0 Nbd7 9.c4 e5 10.de5 de5 (10...Ng4!?+=) 11.Ne5+/- (< 11.Be5 Ne5 12.Ne5 Ng4 13.Bg4 Be5 14.Bc8 Rc8=+) 11...Ne5 12.Qd8 Rd8 13.Be5 1–0. Fournier,Frederic (1955) – upiros (1900), Active (5/0), 2004.

7.b5 Nb8 8.Nbd2 Nbd7 9.0-0 Re8 10.h3 e5 11.de5 de5 12.c4 e4 13.Nd4 Ne5 14.Qc2 Bd7 15.Rfd1 (< 15.Ne4 Ne4 16.Qe4 Nc4=+) 15...c5 16.bc6 bc6 (16...Bc6? 17.Nc6 Nc6 18.Ne4+–) 17.N2b3 (17.Ne4 Ne4 18.Qe4 Nc4 19.Nc6 Re4 20.Nd8 Bb2 (20...Nb2? 21.Rd7 Na4 22.Bf3 Ba1 23.Be4+–; 20...Rd8?! 21.Bg7 Kg7 22.f3=+) 21.Rd7 Ba1–+) 17...Qb6 18.Rab1 Bf8 19.c5 Qc7 20.Ba3 Nd5 21.Bc4 (21.Qe4? Ng4 22.Qg4 Bg4 23.Bg4 Nc3–+) 21...a5 22.Bd5 cd5 23.Qd2 a4 24.Na1 Nd3 25.Nac2 Bc5 26.Bc5 Qc5 27.Nb4 Nb4 28.Rdc1 Qa5 29.Qb4 Qb4 30.Rb4 Rec8 31.Rc8 Rc8 32.Rb7 Be8 33.Rb2 Kf8 34.g3 f5 35.Ne6 Ke7 36.Ng5 h6 37.Rb7 Kd6 38.Nh7 Rc1 39.Kg2 Rc2 40.Nf6 Bc6 41.Ra7? Ra2 42.Ng8 Rc2 43.Ne7 (43.Ne7 Be8 44.Ng8–+). mihai740609 – 2312960, kurnik, 2011.

6.d4 Nbd7

7.0-0 a5 8.b5 a4 9.c4 c6 10.a3 cb5 11.cb5 Nb6 12.Nbd2 d5 13.Ne5 Bf5 14.Rc1 Rc8 15.Ndf3 Nfd7 (15...Rc1 16.Qc1 Qd6 17.Qd1=) 16.Nd7 Qd7 17.Bc3 f6 (17...Rc7 18.Bb4=) 18.Ba5+= Nc4 (18...Rc1 19.Qc1 Nc4 20.Bc4=) 19.Bc4 (19.Qa4 Ra8 20.Bc4 b6+/-) 19...Rc4 20.Rc4 dc4 21.Qa4 Bd3 22.Rc1 Ra8 23.Qb4 (worse 23.Rc4 Ra5 24.Qa5 Bc4-/+) 23...Bf8 24.Bb6 e5 (24...Qe6!? 25.Bc5 b6=) 25.Bc5+/- Bc5 26.dc5 c3 (26...Qd5 27.a4+/-) 27.a4 c2 28.Ne1 e4 (28...Qd5 29.Qd2 (29.Nc2 Bc2 30.a5 h6-/+; 29.Nd3 Qd3 30.Re1 Kg7-/+) 29...Rd8 30.f3+/- (30.Nd3 Qd3 31.Qd3 Rd3-+; 30.Nc2?! Qc5 31.Nb4 Qd6+-)) 29.Qb3 (29.Nc2 Bc2 30.Qc4 Kg7 31.Qc2 Qd3+-) 29...Kg7 (29...Qf7!? 30.Qf7 Kf7 31.Nc2 Bc2 32.Rc2 Ra4+/-) 30.Nc2+- Qg4 (30...Bc2 31.Qc2 Qd3+-) 31.Nd4 h5 (31...Qd7 32.c6 bc6 33.bc6+-) 32.h3 (32.Ne6 Kh6 33.Qd5 Re8+-) 32...Qc8 33.c6 g5 (33...bc6 34.Rc6 Qh8+-) 34.Qe6 bc6 (34...Kg6 35.Qc8 Rc8 36.cb7 Rc1 37.Kh2 Kf7+-) 35.Nf5 Kh7 36.Qf7 Kh8 37.Qg7 1-0. Mely (2300) - khani9 (2155), ChessWorld.net, 2016.

7.0-0 a6 8.c4 b6 9.Qc2 Bb7 10.Nbd2 c5 11.bc5 bc5 12.Rab1 Rb8 13.Rfd1 Qc7 14.Rdc1 Rfc8 15.d5 Re8 16.Bd3 e6 17.e4 ed5 18.ed5 Bc8 19.Re1 Ne5 20.Ne5 de5 21.f3 Nh5 22.Ne4 f5 23.Nf2 Nf4 24.g3 Nd3 25.Nd3 e4 26.Bg7 Rb1 27.Qb1 (27.Rb1? ed3 (27...Kg7 28.Qb2 Kg8 29.Re1+=) 28.Qd3 Qg7–+) 27...Qg7 (worse is 27...Kg7 28.Qb2 Kg8 29.Qa3+/-) 28.Nf2 e3 29.Kg2 Qd4 30.Qd3 Kf7 31.Qd4 cd4 32.Nd3 Re7 33.Rb1 g5 34.Rb6 e2 35.Kf2 Re3 36.Rb3 a5 37.Ne1 Ba6 38.c5? (38.Re3 de3 39.Ke2 Bc4 40.Ke3 Bd5=) 38...Rb3 (better is 38...Re5!?-/+) 39.ab3= d3 40.Ke3 Ke7 41.h3 Bb7?? (better is 41...Kd7=) 42.d6+– Ke6 43.Nd3 (43.Kd3?! Ba6 44.Kd4 Bb5+/-) 43...Ba6 (43...Bd5 44.f4 Bb3 45.fg5 a4 46.Nf4 Kd7 47.Ne2 a3+/-) 44.Ke2 Bb5 45.Ke3 Kd5 46.f4 gf4 47.gf4 h6 48.h4 h5 (48...Be8 49.h5!+–) 49.Kf3 (better is 49.Kd2!? Be8+–) 49...Kd4 50.Ke2 ½–½. Schirmer,Hans1 – Benz,Urs (1725), Adelboden Seniors op 4th, 2006. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.d4 0-0 5.Bb2 d6 6.Be2 Nbd7)

7.0-0 c6 8.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d6 7.0-0 Nbd7 8.d4+=).

7.0-0 Qe8 8.c4 e5 9.de5 Ne5 10.Nbd2 Be6 (better is 10...a5!?=) 11.Ne5+/- (11.Be5?! de5 12.Qc2 Qe7=) 11...de5 12.Be5 Qe7 13.a3 Rac8 14.Nf3 Rfd8 15.Qc2 b6 16.Rfd1 Rd7 17.Qc3 Rcd8 18.Rd7 Rd7 19.Rd1 Ne4 20.Qb2 (20.Rd7 Qd7 (20...Nc3?? 21.Re7 Ne2 22.Kf1 Bc4 23.Rc7+–) 21.Qc2 f5+–) 20...Nf6? (better is 20...Rd1 21.Bd1 f6+/-) 21.Rd7+– Bd7 22.h3 c6 23.Bd4 h6 24.Ne5 Be6? 25.Nc6 Qf8 26.Bf6 1–0. Fournier,Frederic (2090) – Chicot,Patricia, Active, 2009.

7.0-0 Re8 8.c4 e5 9.Nc3 e4 (9...ed4 A) 10.Qd4 h6 (10...a5 11.a3 Nb6 12.Nd5 Nbd5 13.cd5 Bf5 14.Bb5 Re7 15.Qd2=) 11.Qh4 Ne4 12.Qd8 Rd8 13.Ne4 Bb2 14.Rab1 Bg7 15.Rfd1=; B) 10.Nd4 c5 11.Nf3 Nb6 12.Nb5 Ne4 13.Bg7 Kg7 14.Nd2 Nf6 15.Nb3+=) 10.Nd2 h5 (10...a5 11.a3= ab4 12.ab4 Ra1 13.Qa1 Qe7 14.Qa5 c5 15.Nb3+=; 10...c5 11.Nb5 Qb6 12.Qa4 a6 13.bc5 dc5 14.Rab1 Rb8 15.Nc3=; 10...Qe7 11.Qa4 Nb6 12.Qa5 c6 13.Qg5 Bf5 14.Rad1 Qe6 15.c5+=) 11.Rc1 (11.Qc2 Qe7+= 12.Rad1 a5 13.b5 h4 14.f3 Bh6 15.f4+=) 11...Nf8 (11...c5 12.Qc2 Qe7 13.Nb5 Rd8 14.Nc7 Rb8 15.a3+=) 12.d5 (12.Qc2 Bf5 13.Rfd1 h4 14.h3 a5 15.ba5+=) 12...N8h7 (12...a5 13.a3 Bf5 14.Nb3 ab4 15.ab4+=) 13.Re1 (13.Qc2 Ng5 14.Nb3 h4 15.h3+=) 13...Bf5 (13...a5 14.Qa4= Bd7 15.b5+=) 14.Bf1 (14.Nb3!?+/- Ng5 15.c5+=) 14...Ng4 (14...h4 15.h3=) 15.h3 Qh4?? (better is 15...Bc3 16.Bc3 Ne5=) 16.g3+– Qe7 (16...Nf2 17.gh4 (17.Kf2?! Qf6 18.Kg2 a5+–) 17...Nd1 18.Red1+–) 17.hg4 hg4 18.Bg2 (18.Be2!? a5 19.ba5 Qd7+–) 18...Ng5 19.Rc2 Bf6 (better is 19...a5 20.ba5 Ra5+–) 20.Ne2?? (20.Nb5 Bb2 21.Rb2 Nf3 22.Nf3 gf3+–) 20...Kg7? (better is 20...Nf3 21.Bf3 ef3+=) 21.Bf6 Qf6 22.Qa1?? (22.Nf4 Nf3 23.Bf3 gf3+/-) 22...Re5?? (22...Nf3 23.Kf1 Nh2 24.Kg1 Nf3 25.Kf1 Nh2 26.Kg1 Nf3=) 23.c5?? (better is 23.Nd4+–) 23...Nf3= 24.Kf1 Rh8 (24...Nh2 25.Kg1 Nf3 26.Bf3 ef3 27.e4 fe2 28.ef5 Qf5 29.Nc4 Qc2 30.Ne5 de5 31.Qe5 Kg8 32.Qe2 Qe2 33.Re2=) 25.Nf4 (better is 25.cd6 cd6 26.Nc3+–) 25...g5= 26.cd6 (26.Ne2 Nh2 (worse is 26...Ne1 27.Qe1 Rd5 28.Nc3+/-) 27.Kg1 Nf3 28.Kf1 Nh2 (worse is 28...Ne1 29.Qe1 Rd5 30.Ne4 Be4 31.Be4+/-) 29.Kg1 Nf3 30.Kf1=) 26...cd6 (better is 26...gf4 27.ef4 Rd5 28.Qf6 Kf6 29.Ne4 Be4 30.Re4 cd6–+) 27.Rec1?? (better is 27.Ne2 Nh2 28.Kg1 Nf3 29.Kf1 Nh2 30.Kg1 Nf3 31.Kf1=) 27...gf4–+ 28.gf4 Rd5 29.Qf6 Kf6 30.Nb3?? (30.Nb1 Rd3 31.Nc3 Rh2 32.Bf3 gf3–+) 30...Rd3 (30...Bd7 31.Na5 Ba4 32.Rc7 Ra5 33.ba5 Bb5 34.R1c4–+) 31.b5?? (31.Rc7 Be6 32.b5 Rh2–+) 31...g3! 32.fg3 Re3 33.Kf2 Rd3 34.Rc3 Rc3 35.Rc3 Rh2 36.Kf1 Bg4 (better is 36...Bh3 37.Bh3 Rh3–+) 37.Rc2? (better is 37.Na5!? b6 38.Nc4-/+) 37...d5 (better is 37...Bh3!? 38.Re2 Rg2 39.Rg2–+) 38.Bf3 Rc2 39.Bg4 Ra2 40.Be2 Ra3 41.Nc5? (better is 41.Bd1–+) 41...Rg3 42.Kf2 (42.Nb7 Kf5 43.Nd8 d4–+) 42...Rc3 43.Nb7 Kf5 44.Nd6 (44.Nd8 d4 45.Nf7 Kf4–+) 44...Kf4 45.Nf7 d4 Black prepares the advance e3 46.Nd8 (46.Ke1 e3 47.Bf1 d3 48.Bd3 Rd3–+) 46...d3 47.Bf1 (47.Ne6 Ke5 48.Bd3 ed3 49.Ng5–+) 47...e3 48.Ke1 Rc1 0–1. Matlakov,M (2685) – Adhiban,Baskaran (2670), World Blitz, 2015. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.d4 Nbd7) 7.0-0 Re8 8.c4 e5 9.de5 Ng4 10.Qb3 de5 11.h3 Ngf6 12.Rd1 Qe7 13.Nc3 e4 14.Nd2 Nf8 15.Rac1 c6 16.b5 g5 17.Ba3 Qe5 18.Nf1 g4 19.Bd6 Qg5 20.Bf4 Qg6 21.hg4 Ng4 22.Rd6 Ne6 23.bc6 bc6 24.Bg3 Bf6 25.Rc6 Kh8 26.Nd5 Bg7? (26...Kg7 27.Nd2+– (worse is 27.Nf6 Nf6 28.c5 Qg5+–)) 27.Qd1 (better is 27.Nc7 Nd4 28.Rg6 (28.Na8?? Ne2 29.Kh1 Qh5 30.Nh2 Ng3 31.fg3 Qh2; 28.Ne8?? Ne2 29.Kh1 Qh5 30.Nh2 Ng3 31.fg3 Qh2) 28...Ne2 29.Kh1 fg6 30.Re1 (30.Na8?! Nc1 31.Qa3 Ne2+–; worse is 30.Ne8 Nc1 31.Qb1 Nd3+–) 30...Ng3 31.Ng3+–) 27...Nf6 28.Bh4 Ng5? 29.Bg5 Qg5+/- 30.Nc7 Bh3 31.Ng3 Red8? 32.Rd6 Rd6 33.Qd6 Bf8 34.Qd4 Rc8 35.Nd5 Bg7 36.gh3 Nd5 37.Qe4 Nc3+/- 38.Qg4 Qe5?? 39.Qc8 (39.Qc8 Qe8 40.Qe8 Bf8 41.Qf8) 1–0. Kuban,Guenter (2235) – Weng,Annegret (2085), Hessenliga, 1996. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 Nbd7)

7.0-0 Re8 8.c4 e5 9.de5 Ng4 10.Nc3 Nge5 (worse 10...Be5 11.Ne5 Nde5 12.h3+/-) 11.Ne5 de5 (11...Ne5 12.f4 Nc6 13.b5=+) 12.c5 (12.Rc1 a5 13.b5 Nf6+=) 12...Nf6 13.Bc4 Qe7 14.Qe2 Be6 15.Rfd1 Rad8 (15...Red8 16.a3=) 16.e4 (16.Be6 Qe6 17.Qb5 b6=) 16...Bc4 17.Qc4 Rd4 18.Rd4 ed4 19.Qd4 Ne4 20.Qg7 Kg7 21.Nd5 f6 (21...Qe5 22.Be5 Re5 23.Rd1=) 22.Ne7 Re7 23.Rd1 Kf7 24.Kf1 a6 (24...f5 25.f3 Nf6 26.Kf2=) 25.Rd8 (25.f3 Ng5+=) 25...c6 26.a3 h5 27.f3 Ng5 28.Rd6 Re6 29.Rd7 Re7 30.Rd6 Re6 31.Rd7 Re7 32.Rd6 ½-½. WG_Anonymous553 (2040) - Lance5500 (2645), lichess.org, 2020. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.d4)

7.a4 e5 8.de5 (8.Nc3 e4 9.Nd2 d5=) 8...Ng4 9.Nbd2 Nge5 (< 9...de5 10.0-0=) 10.Ne5 Ne5 11.0-0 Nf3 12.Bf3 Bb2 13.Rb1 Bg7 14.c4 (14.Nb3 Be5=) 14...c6 (14...Re8 15.g3=+) 15.Nb3 Bf5 16.Rc1 (16.e4 Bc8=+) 16...Bb2-/+ 17.Nd4 Bc1 18.Nf5 ½–½. gslabek (1955) – zenegblues (1900), kurnik, 2012.

7.b5 c6 8.a4 c5 9.c4 cd4 10.Bd4 Nh5 11.0-0 Bd4 12.Nd4 Nhf6 13.Nc3 e5 14.Nf3 Nc5 15.Nd5 Nd5 16.Qd5 Be6 17.Qd1 Qa5 18.Qc2 Rac8 19.Rfd1 Qc7 20.h3 Rcd8 21.Rd2 Bf5 22.Qd1 Ne4 23.Rd5 Nc3 24.Qe1 Nd5 25.cd5 Be4 26.Nd2 Bd5 27.Rc1 Qe7 28.e4 Be6 29.Nb1 d5 30.Bf3 d4 31.Qa5 b6 32.Qa6 Qb4 33.Qa7 Rc8 34.Rf1 Ra8 35.Qb6 Ra4 36.Qc7 Ra1 37.Qc2 Ra3 38.Na3 Qa3 39.Rb1 Rb8 40.Qb2 Qb2 41.Rb2 Bc4 42.b6 d3 43.Bd1 Ba6 44.f3 Bc8 45.Kf2 Be6 46.Ke3 Bc4 47.Ba4 Kg7 48.Bc6 f6 49.Bd5 Ba6 50.Ba2 f5 51.Bb1 f4 52.Kd2 Kf6 53.Bd3 Bd3 54.Kd3 g5 55.b7 Ke7 56.Kc4 Ke6 57.Rb6 Ke7 58.Kd5 Kd7 59.Ke5 Kc7 60.Rb2 Rb7 61.Rb7 Kb7 62.Kf5 Kc6 63.Kf6 Kd6 64.e5 Kd7 65.Kf7 Kc6 66.e6 Kd5 67.e7 Kd4 68.e8Q Kd3 69.Kg7 Kd2 70.Kh7 Kd3 71.Kg6 Kd2 72.Kg5 Kd3 73.Kf4 Kd2 74.h4 Kd3 75.Qe4 Kd2 76.Qe3 Kd1 77.Ke4 Kc2 78.Qd4 Kc1 79.Qf2 1–0. mihai740609 – sarajevosah, kurnik, 2012.

7.c4 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7).

7.Nbd2 a5 8.a3 Nb6 9.c4 Bd7 10.b5 c5 11.0-0 Bf5 12.a4 (12.Re1 Qc7+=) 12...h6 (12...Qc7 13.Re1=) 13.Qb3 g5 (13...Qc7 14.Bd3=) 14.Rfd1 Qc8 15.Bd3 Bg4 16.Re1 Nh5 (16...Qe6 17.e4 Rad8 18.e5 de5 19.Ne5+/-) 17.Be2 (17.Rad1 cd4 18.Bd4 Qc7+=) 17...f5 (17...Nf6 18.e4+=) 18.h3 Bf3 19.Nf3 Nf6 20.dc5 dc5 21.Rad1 Qe6 22.Bd3 Ne4 23.Bg7 Kg7 24.Nh2 (24.Be4!? Qe4 25.Nd2+=) 24...Qe5= 25.Rc1 (better is 25.Qc2!?=) 25...Nf2-/+ 26.Kf2 Qh2 27.Qc3 Kg8 28.Be2 Na4 29.Qb3 (29.Qa3!? f4 30.Bf3-/+) 29...Nb6–+ 30.Bf3 g4 (30...Ra7 31.Qc2–+) 31.Bb7-/+ f4 (31...f4 32.Qd3 fe3 33.Ke3 Qf4 34.Ke2 Rad8–+; 31...gh3?! 32.Rh1 Qd6 33.Ba8 Qd2 34.Kg3 Ra8 35.Kh3=) 0–1. Bravo,Antonio (1965) – Carneiro,Carlos (2245), 2nd Open Internacional Xadrez Evora, 2007. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.d4 Nbd7)

7.h3 c6 8.0-0 Qb6 9.c3 a5 10.Qb3 Ne4 11.Nbd2 Nd2 12.Nd2 Qc7 13.a4 Nb6 (13...Re8 14.b5=) 14.ba5+= Ra5 15.c4 e5 16.Bc3 Ra8 17.Rfb1 Nd7 18.a5 Re8 19.d5 Nc5 20.Qb6 ½–½. Heyl,Thomas (2045) – Schenkerik,Csaba (2120), Budapest FS09 FM–A, 2009. (=1.d4 g6 2.Nf3 Bg7 3.e3 Nf6 4.b4 0-0 5.Bb2 d6 6.Be2 Nbd7)

7.h3 e5 8.c3 Re8 9.a4 e4 10.Nfd2 Nf8 11.c4 h5 12.Nc3 N8h7 13.a5 a6 14.Qc2 Bf5 15.b5 Ng5 16.h4 (16.0-0!?+=) 16...Ne6= 17.Nd5 (17.Nb3!?=) 17...Nd5+= 18.cd5 Nd4 19.Bd4 (19.Bd4 Bd4 Combination; 19.ed4 e3 Combination) 19...Bd4 20.ed4 e3 21.Qc3 ed2 22.Kd2 ab5 23.Bb5 Re4 24.Rae1 (24.g3 Qf6 25.Ra4 Re7+=) 24...Re1 (24...Qf6 25.Re4 Be4 26.f3 Bd5 27.Be2–+) 25.Ke1 (better is 25.Re1!? Qh4 26.g3-/+) 25...Be4 26.f3 Bd5 27.Bd3 c6 28.a6 ba6 29.Kf2 Qf6 30.Bc4 Bc4 31.Qc4 d5 32.Qc3 a5 33.Kg3 a4 34.Ra1 a3! 35.Ra3 Qd6 (35...Qd6 36.Kf2 Ra3–+) 0–1. Tregubov,Andrei (2345) – Vorobiov,Evgeny E (2595), Moscow RUS, MGSU Rector Cup, 2012. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Be2 Nbd7)

7.h3 e5 8.de5 Ne4 9.Qd5 Ng5 10.Nbd2 Nf3 11.Nf3 Ne5 12.Ne5 de5 13.Qd8 Rd8 14.Bc4 Bf5 15.Bb3 a5 16.ba5 Ra5 17.Ke2 Be4 18.Rhd1 Raa8 19.f3 Bc6 20.e4 Kf8 21.Rd8 Rd8 22.a4 f6 23.Bc4 Ra8 24.a5 Ke8 25.Bc3 Bf8 26.g4 Bd6 27.h4 Ke7 28.Rb1 Rf8 29.Kd3 Bc5 30.Bd5 Kd6 31.Kc4 Bd5 32.ed5 b6 33.ab6 c6 34.dc6 Kc6 35.b7 Rb8 36.h5 gh5 37.gh5 Bb6 38.Kd3 Rb7 39.Ke4 Rg7 40.h6 Rg2 41.Bb4 Rc2 42.Kf5 Bd4 43.Be7 Rh2 44.Bf6 Rh6 45.f4 Rf6 ½–½. Rogers,Jonathan (2325) – Ledger,David (2275), 4NCL/Div1/MM–BAR2 (Rd06–Birmingham), 2001.

7.0-0 b6

8.c4 c5 9.a3 a5+=.

8.c4 c5 9.a3 cd4 10.ed4 a5+=.

8.c4 c5 9.b5 a6 10.a4 (10.Nc3 ab5 11.Nb5 cd4 12.ed4 d5=) 10...cd4 11.Nd4 Bb7 12.Nd2 (12.ba6 Ba6 13.Nd2 Bb7=+) 12...Nc5 13.Bf3 d5 (13...Qc7 14.Bb7 Qb7 15.Nc6=) 14.N2b3 Nfe4 15.Be4 (15.Nc5 bc5 16.Nc6 Bc6 17.Bg7 Kg7 18.bc6 Qa5 19.cd5 Nd2+/-) 15...Ne4=+ 16.cd5 Qd5 (< 16...Bd5 17.Nc6 Bc6 18.Bg7 Kg7 19.bc6+=) 17.f3 Nd6 18.e4 Qh5 19.Qe2 Rac8 20.ba6+/- Ba8 21.Rac1 Be5+= 22.g4 Qg5 23.Rc8 Rc8 24.Bc1?? Bd4–+ 25.Kg2 Qe5 26.Rd1 Bc5 27.a7 f5 28.Bb2 Qe6 29.gf5 Qb3 30.fg6 hg6 31.Rd3 Qe6 (31...Qe6 32.Qc2 Ne4–+; 31...Qa4 32.Qd1 Qa2 33.Qd2–+) 0–1. Lorenc,T (2160) – Kebis,M (2035), Tatry Open Tatranske Zruby SVK, 2006.

8.c4 c5 9.bc5 dc5 10.dc5 (10.Nc3 cd4 11.ed4 Bb7=) 10...Nc5 11.Nc3 Bb7 12.Qc2 Nfe4 (12...Qc7 13.Rfd1=) 13.Ne4 (better 13.Rad1!? Qe8 14.Nb5=) 13...Be4-/+ (13...Ne4?! 14.Bg7 Kg7 15.Rfd1=) 14.Qc1 Bd3 (14...Bf3!? 15.Bf3 Nd3-/+) 15.Bg7 Kg7?? (better 15...Be2 16.Bf8 Qf8=) 16.Rd1+- Qd6 17.Qc3 Qf6 18.Qf6 (18.Rd3?! Nd3 19.Qf6 Kf6 20.Bd3 Rfd8+/-) 18...ef6 (18...Kf6 19.Bd3 (19.Rd3?! Nd3 20.Bd3 Rfd8+/-) 19...Rfd8 20.Bc2+-) 19.Bd3 (19.Rd3?! Nd3 20.Bd3 Rfd8+-) 19...f5 20.Bc2 Rad8 21.Rd8 Rd8 22.Rd1 Rc8 23.Bb3 Ne4 (23...h6 24.Kf1+-) 24.Rd7 a5 25.Ne5 Kf6 (25...Rc5 26.Rf7 Kg8 27.Re7+-) 26.f4 (worse 26.Nf7 a4 27.Nd6 Nd6 28.Rd6 Ke5 29.Rb6 ab3 30.ab3 g5+-) 26...b5 (26...Rf8+-) 27.Rf7 Ke6 28.cb5 (28.c5) 28...Kd6+- 29.h3 (29.g4 Kc5 30.Be6 Rd8 31.gf5 Rd1 32.Kg2 gf5+-) 29...h5 (29...Kc5 30.g4 Kb5 31.Rb7 Ka6 32.Rh7+-) 30.Rd7 (30.b6 Rb8+-) 30...Kc5 31.Rg7 (better 31.Rd5 Kb6 32.Nc4 Ka7 33.b6 Kb7 34.Ra5 Rc6+-) 31...Kb4 (31...Kb5 32.Be6 Rc1 33.Kh2+-) 32.Rg6 (better 32.b6 Kb5 33.b7 Rb8+-) 32...h4 (32...Kb5 33.Be6 Rc1 34.Kh2+-) 33.Rc6 (33.b6!? Kc3 34.Be6 Rd8 35.Bf5 Ng3+-) 33...Rd8 34.Kf1 (better 34.b6!? a4 35.b7 Rb8 36.Rb6 Kc3 37.Ba4 Nc5+-) 34...Ng3 (34...Kb5 35.a4 Kb4 36.Bc2+-) 35.Kf2 (35.Ke1!? Kb5 36.Bc4 Kb4 37.Rb6 Kc3 38.Rb3 Kc2 39.Bd3 Rd3 40.Rd3 a4+-) 35...Rd2 36.Kf3 (36.Ke1 Re2 37.Kd1 Rg2+-) 36...Ne4 (36...Nf1 37.Nd3! Rd3+-) 37.Rc2 Rd8 (37...a4 38.b6 ab3+-) 38.Nc6 Kb5 39.Nd8 Nd2 1-0. muhammadaudii (2135) - ramitalab (2135), lichess.org, 2020.

8.c4 c5 9.dc5 bc5= 10.b5 Bb7 (10...Rb8 11.a4=) 11.Nbd2 (11.Nc3 Rb8=) 11...Qc7 (11...Rb8 12.Qc2=) 12.a4 e6 13.Qc2 Rac8 (13...Rfd8 14.a5+=) 14.a5 d5 (14...Rfd8 15.Rfd1+=) 15.h3 (15.cd5 Bd5 16.Rfd1 Rfd8+=) 15...Rfd8= 16.Rfd1 e5 (16...Rb8 17.Bc3=) 17.cd5+= Nd5 18.Nc4 (18.Bc4 Nb4 19.Qb3 Nb8+/-) 18...e4 19.Nfd2 (19.Bg7 ef3 20.Bf3 Ne3 21.fe3 Bf3 22.gf3 Kg7+/-) 19...Nb4 20.Qb1 Bb2 (20...Nf6 21.Bc3+=) 21.Qb2 (21.Nb2 Nf6+=) 21...Bd5= 22.Qc3 (22.Qb1 f5=) 22...Qb8 23.Bg4 (23.f3 f5 24.fe4 fe4 25.Bg4 Qb5 26.Ne4 Qc4 27.Qc4 Bc4 28.Bd7+–) 23...f5-/+ 24.Be2 Qb5 25.Bf1 Qc6 26.Nb3 Qf6 27.Qc1 Kg7 28.a6 Nb6 29.Nba5 Nc4 30.Nc4-/+ Nd3 31.Bd3 ed3 32.Rb1 Qe6 33.Qc3 Kg8 34.Ne5 c4 35.f4 Qa6 36.g4 Be4 37.g5 Qa4?? 38.Rd2?? Bd5–+ 39.h4 Rb8 40.Rb8 Rb8 41.Qd4 Rb1 42.Kf2 Qb5 43.h5 Rh1 44.h6=+ Qb7 45.Nc4= Rh2 46.Kg3 (46.Kg3 Rd2 47.Nd2=). Hebelka,M – Hantak,A, Bratislava, 2000.

7.0-0 e5

8.Nbd2 e4 9.Ne1 Re8 10.c4 Nf8 11.Nc2 h5 12.c5 d5 13.a4 c6 14.b5 N8h7 15.a5 a6 16.ba6 ba6 17.Nb4 Qd7 18.Qa4 Bb7 19.Rfb1 h4 20.h3 Ng5 21.Bf1 Nh5 (21...Ne6 22.Ra3+=) 22.Bc3 f5? (better 22...Ne6 23.Qc2 f5+=) 23.Nd5!+- Qd5 (23...cd5 24.Qd7 Pinning (24.Qd7 Deflection); 23...Qd5 24.Rb7 Discovered attack (24.Rb7 Deflection; 24.Rb7 Overloading)) 24.Bc4 1-0. Muradyan,Robert (2095) - Silich,Yahor (2330), BLR-ARM Team Battle, lichess.org, 2020. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2)

8.de5 Ng4

9.Nbd2 Nde5 10.Qc1 Qe7 11.c4 Re8 12.Rd1 a5 13.a3 Nf3 14.Nf3 Ne5 15.Ne5 de5 16.Qc3 ab4 17.ab4 Be6 ½–½. Galyga,Zbigniew (2085) – Jaroch,Pawel (2135), Polanica Zdroj op–B Poland, 2007. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7)

9.Nbd2 Nge5 10.Rb1 a5 11.a3 ab4 12.ab4 Ra2 13.Bd4 Nf3 14.Nf3 Ne5 15.Ra1 Ra1= 16.Qa1 Re8 17.Rd1 Qe7 18.Ne5 de5 19.Bc3 h5 20.h3 Kh7 21.Qa2 Bf5 22.Qb3 Ra8 23.Bc4 Kg8 24.Bd3 Rd8= 25.Rd2 Be6 26.Bc4 Bc4 27.Qc4 Rd2 28.Bd2 Qd6 29.Qd3 Qd3 30.cd3 c6 31.Kf1 f5 32.e4 Kf7 33.Ke2 Ke6 34.Bc3 Bh6 35.Kd1 h4 36.Kc2 Bf8 37.Bd2 b5 38.Kc3= Kf6 39.Be3 g5 40.f3 fe4 41.fe4 Be7 42.Bd2 c5 43.bc5 Bc5 44.Kb3 Bd6 45.Ba5 Bc5 46.Bd8 Kg6 47.Kc3 Bd6 48.Bb6 Kf6 49.Bd8 Kg6 50.Bb6 ½–½. Szajna,Wladyslaw (2250) – Antoniewski,Rafal (2430), Lubniewice, 1998.

9.Nbd2 Nge5 10.Rb1 Re8 11.Nc4 Nf3 12.Bf3 Bb2 13.Rb2 Ne5 14.Ne5 Re5 15.Qd4 a5 16.b5 Rc5 17.Rd1 Bd7 18.b6 Bc6?? 19.Qc5!!+– Bf3 20.gf3 dc5 21.Rd8 Rd8 22.bc7 Rc8 23.Rb7 Kg7 24.Kf1 Kf6 25.Ke2 Ke6 26.Kd3 Kd6 27.Kc4 g5 28.Kb5 f5 29.Rb6 Kd7 30.Rc6 (30.Ka5?! Kc7 31.a4 Ra8 32.Ra6 Rb8+–) 1–0. Stubljar,A (2040) – Spelec,D (2055), Open, Ptuj SLO, 2007.

9.Nbd2 Nge5 10.Qc1 Nf3 11.Nf3 Ne5 12.h3 Qe7 13.c4 Bf5 14.Ne5 Be5 15.Be5 de5 16.c5 Rfd8 17.Qc3 ½–½. Heyl,Thomas (2100) – Szilardfy,Gyula (2090), Budapest FS12 FM–A, 2005. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.d4 Nbd7)

9.h3 Nde5 10.Ne5 Ne5 11.f4? Nf3!-/+ 12.Bf3 (12.Bf3 Bb2 Discovered attack; 12.Rf3 Bb2 Discovered attack; 12.gf3 Bb2 Discovered attack) 12...Bb2 13.Nd2 Ba1 14.Qa1 Re8 15.Ne4 Re4 (15...Re6!?-/+) 16.Be4=+ Qe7 17.Qd4 c5 18.bc5 dc5 19.Qc4 Be6 20.Qb5 Ba2 21.Qb7 Qb7 22.Bb7 Re8 23.Ra1 Bc4 (23...Rb8 24.Ra2 Rb7 25.Kf2=) 24.Kf2 a6 (24...Re7 25.Bf3= (worse 25.Ra7 Kg7=+)) 25.Ra4 (25.Ra5!?+/-) 25...Bb5+= 26.Ra5 Rd8 27.Ba6 Rd2 28.Kg3 Ba6 29.Ra6 Rc2 30.Kf3 c4 31.Rc6 f5 32.g4 c3 33.gf5 gf5 34.e4 Rc1 35.ef5 c2 36.Ke2 Kf7 37.f6 (37.Kd3 Rh1 38.Rc2 Rh3 39.Ke4 h5+=) 37...Rh1 38.Rc2 Rh2 39.Kd3 Rh3 40.Ke4 Kf6 41.Rc6 Ke7 ½-½. muhammadaudii (2120) - niazy (2170), MediterraneanCheckmateCoronaF1 Team Bat, lichess.org, 2020.

6.d4 Nfd7

7.0-0+= a5 8.b5+=.

7.0-0+= c6 8.c4 Na6 9.a3 Nc7 10.Nbd2 e5 11.de5 de5 (11...Ne5 12.Ne5 de5 13.Ne4+=) 12.Qc2 (12.Ne4 a5+/-) 12...Re8 (12...f5 13.c5+=) 13.Rad1 (13.Ne4 Qe7+/-) 13...e4+= 14.Bg7?? (better is 14.Ne1 Bb2 15.Qb2+=) 14...ef3-/+ 15.Bf3 (15.Nf3 Kg7 16.Rd6 Qe7-/+) 15...Kg7 16.Ne4 Qe7 17.Qc3 (17.Nd6 Rd8 18.c5 Ne8-/+) 17...Qe5 18.Qe5 (18.Qc2 a5-/+) 18...Ne5-+ 19.Nd6 Nf3 20.gf3 Re5 (20...Rd8 21.Rd2-+) 21.f4 (21.Rd2 a5-+) 21...Re7 22.h4 Bh3 23.Rfe1 Ne8 24.c5 Bg4 25.Rd4 f5 26.Kg2 Nd6 27.Rd6? a5-+ 28.Kg3 ab4 29.ab4 Ra4 30.Rd4 Ra3 31.Rd8 Rb3 32.Rd4 Bh5 33.Kg2 Rb2 34.Kg3 Be2 35.f3?? Re3 (36.h5 Rf3 37.Kg2 Bd1 38.Kg1 Rg3 39.Kf1 Rh3 40.Rd7 Kh6-+) 0-1. Jeschke,Holger - Jacobsen,Uwe, Schleswig Holstein-ch, 1993.

7.0-0+= c6 8.c4 c5 9.a3+=.

7.c4 c5 8.a3 e6 (8...cd4 9.Bd4 Bf6 10.Bf6 Nf6 11.Nfd2=) 9.0-0 (9.Nc3 cd4 10.Nd4 Nf6=) 9...Nc6 (9...Qe7 10.h3+=) 10.Qb3 Qe7 11.Rd1 b6 (11...cd4 12.Nd4 Nd4 13.ed4=) 12.Nc3 (12.h3 cd4 13.ed4 Nf6+=) 12...Bb7 (12...cd4 13.Nd4 Nd4 14.ed4=) 13.d5 Nd8 14.de6 fe6 (14...Qe6? 15.Nb5 Qe7 16.Rd6 Bb2 17.Qb2+–; 14...Ne6?! 15.Nd5 Qd8 16.Ne1+=) 15.Nb5 Nf7 (better is 15...Bb2!? 16.Qb2 Nf7=) 16.Bg7+/- Kg7 17.Nd6 Nd6 18.Qd3 Rf7 (18...Bf3 19.Bf3 Ne5 20.Qd6 Nf3 21.gf3+/-) 19.Qd6 Qf6 20.Ra2 (20.Qg3 Rd8+/-) 20...Rc8 (20...Bf3 21.gf3 Raf8 22.Kh1+/-) 21.Qd7 Rd7?? (better is 21...Bf3 22.Qd3 Bc6+/-) 22.Rd7+– Kh8 23.Rb7 Rd8 24.bc5 bc5 25.Ra7 Qc3 26.g3 Qb3 27.Rd2 Rd2 28.Nd2 Qc2 (28...Qa2 29.Ra8 Kg7 30.Rd8 Qa3 31.Rd7 Kh8 32.Bf1+–) 29.Rd7 Qc1 (29...h6 30.Bf1+–) 30.Bf1 Qa3 31.Ne4 Kg8 (31...Qb2 32.Nc5 Kg8 33.Ne6+–) 32.Nf6 Kf8 33.Nh7 Ke8 34.Nf6 Kf8 35.h4 Qa1 36.Ne4 Qe5 37.Ng5 Ke8 38.Rb7 1–0. Kaenel,Hansjuerg (2440) – Hofrichter,Jens (2110), Baden VLS, 2002. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2 Nfd7)

7.c4 e5 8.Nc3 f5 9.de5 Ne5 10.Ne5 Be5 11.f4 Bg7 12.Kf2 (12.0-0 Be6=) 12...Re8 13.Qd2 Be6 14.Nb5 Bb2 15.Qb2 Nd7 16.Rhd1 Bf7 17.g3 (17.Qb3 a5=) 17...a5 (17...Nf6 18.Qd4=+) 18.a3 (18.c5 d5=) 18...Nf6=+ 19.Nc3 Qe7 20.Qd2 Rad8 21.Rab1 ab4 22.ab4 c5 23.bc5 (23.Qc1 cb4 24.Rb4 Ra8=+) 23...dc5 24.Qc1 Rd1 25.Nd1 Ne4 26.Kg1 Rd8 27.Rb2 h5 (27...Be8 28.Bf3=+) 28.Nf2 Nd6 29.Rb6 Re8 30.Bf1 Qc7 31.Rb2 Ra8 32.Rc2 Qe7 33.Nd3 Ne4 34.Ne5 h4 35.Bg2 (35.gh4 Qh4 36.Rg2 Ra6+=) 35...hg3= 36.Be4 gh2 (36...fe4 37.hg3 g5 38.Rb2+=) 37.Rh2+= fe4 38.Qb2 Ra6?? (38...Qf6 39.Qb7 Ra1 40.Kf2 Ra2 41.Kg3 Rh2 42.Kh2 g5 43.Qf7 Qf7 44.Nf7 gf4 45.Nh6 Kg7+–) 39.Rh8!! (39.Rh8 Kh8 40.Ng6 Kh7 41.Ne7 Bc4 42.Qb7+–) 1–0. Bisguier,Arthur B – Grefe,John A, Lone Pine (USA), 1981. (=1.Nf3 Nf6 2.e3 g6 3.b4 d6 4.d4 Bg7 5.Bb2 0-0 6.Be2 Nfd7)

7.Nbd2 e5 8.de5 de5 9.0-0 Qe7 10.e4 Re8 11.a3 b6 12.Bc4 Bb7 13.Re1 a6 14.Qe2 Nf8 15.Qe3+= h6 16.Qb3 Nbd7 17.Rad1 Rab8 18.Nb1 b5 19.Bf1 c5 20.c4 bc4 21.Bc4 cb4 22.ab4 Bc6 23.Qa2 Ne6 24.Bd5 Bd5= 25.ed5 Nf4 26.Qa6 Qb4 27.Bc3= Qe7 28.Qf1 Qc5-/+ 29.d6 Rb1! 30.Bd4 Qc8 31.Rb1 ed4 32.g3 Re1 33.Re1 Ne6 34.Qb5 Bf6 35.Nd2 Nef8 36.Nb3 Kg7 37.Rc1 Qe8 38.Rd1 Ne6 39.Na5 Ng5 40.Kf1 Qe6 41.Qc6 Ne5 42.Qg2 Ngf3 43.Qh1 Qd6 44.Kg2 Qd5 45.Kh3 Qa5 (45...Qa5 46.Kg2 Qd5–+; 45...Ng5 46.Kh4 Ne4 47.Kh3 Nf2) 0–1. Skalicka,Carlos – Menchik,Vera, Podebrady, 1936.

6.d4 e5

7.c3 Qe7 8.a4 (8.0-0 Bg4=) 8...Bf5 (8...a5 9.b5 Nbd7 10.0-0=) 9.h3 (9.a5 e4 10.Nfd2 d5=) 9...Nbd7+= 10.Na3 (10.0-0 a5=) 10...h5 (10...c5 11.0-0=) 11.Qb3 (11.0-0 a5=) 11...Ne4 (11...Be6 12.c4=) 12.Nc4 (12.0-0 Qe6 13.Qe6 fe6=) 12...Be6 13.Rd1 f5 14.Qc2 (14.d5 Bf7=) 14...g5 (14...Qf7 15.Ncd2=) 15.d5 (15.Na5 Rab8+=) 15...Bf7 16.Na5 (16.g4 Bg6 17.gh5 Bh5+=) 16...Rab8 (16...Nb6 17.c4 Be8 18.Ra1+= (worse is 18.Nb7 Ba4 19.Qc1 Bd1 20.Qd1 g4-/+)) 17.c4 Bg6 (17...Nb6 18.Bd3=) 18.Nd2+= Nd2 19.Rd2 Nf6 20.Rd1 Rf7 (20...Qf7 21.f4+=) 21.c5 (21.g4 e4+=) 21...Kh7 (21...dc5 22.bc5 Ne4 23.Nc4+=) 22.f3 (22.c6 f4 23.Qb3 b6+=) 22...e4= 23.f4 (23.Nc4 f4 24.ef4 gf4= (worse is 24...dc5 25.Ne5+/-)) 23...gf4 24.ef4 h4 (24...Nd7!? 25.g3 dc5 26.Bg7 Rg7+=) 25.0-0+= Nh5 (25...dc5 26.bc5 Nd7 27.d6 cd6 28.cd6+=) 26.Bh5 (26.c6!?+=) 26...Bh5= 27.Rc1 (27.Rb1 dc5 28.bc5 Qd8=) 27...Bb2 (27...dc5!? 28.bc5 Qd8 29.Bg7 Rg7+=) 28.Qb2= e3 (28...Qf6 29.Qd2=) 29.cd6 cd6 30.Qc3 (better is 30.Rfe1=) 30...Rg8–+ 31.Qd3? (31.Kh1 Qe4 32.Qc2–+) 31...e2 32.Rfe1 (32.g4 ef1R 33.Kf1 Bg6–+) 32...Rg3 33.Qd4 (33.Nc6 Rd3 34.Ne7 Re7–+) 33...Bf3 34.Kf2 (34.Rc3 Qe4 35.Qe4 Rg2 (35...Be4 36.Rg3 hg3 37.Nc4-/+) 36.Kh1 fe4 37.Re2 Re2 38.Kg1 Rg7 39.Kf1 Rh2 40.Rc8 e3 41.Rh8 Kh8 42.Nb7 Rh1) 34...Rg2 (34...Bg2?! 35.Re2 Qd7 A) worse is 36.Qa7 Qa4 (worse is 36...Bd5 37.Qd4 Bf3 38.Rd2-/+; 36...Bh3?! 37.Nc4+=) 37.Qd4 Rfg7–+; B) 36.Rc3 Rc3 37.Qc3-/+) 35.Kf3 Rfg7 36.Qg7 Qg7 37.Ke3 Rg3 38.Ke2 (38.Kd2 Qd4 39.Kc2 Rc3 40.Kb1 Qb4 41.Nb3 Rb3 42.Kc2 Qc3) 38...Qb2 (38...Qb2 39.Rc2 Qc2 40.Kf1 Qg2) 0–1. Tregubov,Andrei (2340) – Kovalev,Vladislav (2450), Moscow Open, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2).

7.de5 Nfd7 8.0-0 Ne5 9.Nc3 Be6 10.Nd4 a6 11.f4=.

7.de5 Nfd7 8.Bc3 Ne5 9.0-0 Qe7 10.a3 Be6 11.Nd4=.

7.de5 Nfd7 8.Nc3 Ne5 9.0-0 Be6 10.Nd4 Qh4 11.Ne6=.

7.de5 Nfd7 8.c4 a5 9.b5 (9.a3 Ne5 10.Ne5 de5 11.Nc3=) 9...Ne5 10.Ne5 (10.Nc3 Nf3 11.Bf3=) 10...de5 11.Nc3 (11.Qd8=) 11...Be6 12.Na4 (12.Qd8!? Rd8 13.Nd5 Bd5 14.Rd1+=) 12...Nd7 13.Qc2 Qg5 14.Bf3 Rab8 15.c5 Rfd8 16.Bc3 b6 17.c6 Nf8 18.Nb2 e4 19.Be4 Bc3 20.Qc3 Qb5 21.a4 Qb3 22.Rc1 (22.Qb3 Bb3 23.Ke2 f5=) 22...Rd6 (22...Qc3 23.Rc3 b5 24.Ke2=+) 23.Qb3= Bb3 24.Rc3 Bd5 25.Bd5 Rd5 26.Ke2 Ne6 27.Nd3 Rbd8 28.Rb1 f5 29.Rb2 f4 30.Rbc2 fe3 31.fe3 (worse 31.Ke3 Re8 32.Kd2 Nc5 33.Rc5 bc5 34.Rc5 Rd4-+) 31...Rg5 32.g3 Rgd5 33.Nf4 R5d6 34.Ne6 Re6 35.Rc4 Rdd6 36.R2c3 Kf7 37.Kf3 Ke7 38.Rh4 h5 39.Rhc4 Kf7 40.Rf4 Ke7 41.Rfc4 Kf6 42.Rf4 Ke7 ½-½. Skalicka,Carlos – Esposito, Quilmes, 1945. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6 4.Bb2 Bg7 5.e3 0-0 6.Be2)

7.de5 Nfd7 8.c4 Nc6 9.0-0 Nb4 (9...Nde5!? 10.Ne5 Ne5=) 10.Qd2+= Nc6 11.ed6 Bb2 12.Qb2 cd6 13.Rd1 Nc5 14.Nc3 Qf6 15.Nd4 Be6 16.Nc6 bc6 17.Rd4 (17.Rd6 Ne4 18.Rd3 Bc4-/+ (18...Nf2? 19.Rd4+-)) 17...Rab8 18.Qa3 Qe7 19.Rad1 Rfd8 20.Bf3 (20.Qc1 Rbc8+=) 20...Qc7= 21.h4 a5 22.Na4 (22.Be2 Rb4=) 22...Na4 23.Qa4 c5 24.Rf4 h5 (24...Rb2!?=+) 25.Qc2= Qb6 26.Be4 f5 27.Bf3 Qb2 28.Qd3 Qe5 (28...a4 29.e4 Qe5 30.g3=) 29.Qa3 Qb2 (29...Rb6 30.Qa5 Rdb8 31.g3+/-) 30.Qa5+/- Qb4 31.Qa6 Rb6 32.Qa7 Rd7 33.Qa8 Rb8 34.Qc6 Rb6 (34...Qb6 35.a4+/-) 35.Qc8 Kg7?? (better 35...Kf7+/-) 36.Qe8+- Kf6 37.Qh8 Kf7 38.e4 (38.Qh7!? Kf6 39.Qh6 Kf7+-) 38...Qb2 39.Qh6 Qg7 40.Qg5 Qf6 (40...Kg8 41.ef5 gf5 42.Qh5+-) 41.ef5 Bf5 42.Qh6 Qg7 (42...Re7 43.Bh5! Kg8 44.Bg4+-) 43.Bd5 (43.Rf5!? gf5 44.Bh5 Kf8+-) 43...Kf8?? (43...Ke8 44.Re1 Kd8 45.Qg5 Re7+-) 44.Qg5 1-0. Stocek,J (2590) - Banzea,Alexandru_Bogdan (2425), 20th ch-EUR Indiv, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.d4 0-0 5.Be2 d6 6.Bb2)

7.de5 Nfd7 8.c4 Nc6 9.Qb3 Nde5 10.Ne5 Ne5 11.f4 Nd7 12.Bg7 Kg7 13.Qc3 Qf6 14.Qf6 Nf6 15.Nc3 a5 16.b5 Re8 17.Kf2 Be6 18.Rad1 Nd7 19.Na4 (19.Rhe1 Rad8=) 19...b6 20.Rd4 Rad8 21.Rc1 Nc5 22.Nc5 dc5 23.Rd8 Rd8 24.Ke1 Kf8 25.Rd1 Rd1 26.Kd1 Ke7 27.Kd2 c6 28.bc6 Kd6 29.Kc3 Kc6 30.h4 (30.e4 h6+=) 30...h6 31.h5 gh5 32.Bh5 b5 33.cb5 Kb5 34.a3 Ka4 35.Kb2 Kb5 36.Be2 Kc6 37.Kc3 Kd6 38.Bc4 Bd5 39.g3 f6 40.Bb5 Be4 (40...f5 41.Be2=) 41.Bc4 Bg2 42.Bd3 Bd5 43.Bc2 Be6 44.e4 Bf7 45.Bd3 Ba2 46.Be2 Bb1 47.Bf3 Ba2 48.Kd3 Bb1 49.Kc4 Ba2 50.Kc3 Be6 51.Bg2 Ba2 52.Bf1 Bb1 53.Bd3 Ba2 54.Bc2 Be6 55.Bb3 Bg4 56.Bc4 Bh5 57.Ba6 Bf7 58.Bc4 Bh5 59.Kd3 Be8 60.Ke3 Bh5 61.Kd3 ½–½. Mrkonjic,Nenad (2390) – Nurkic,Sahbaz (2400), Prva A Liga SSFBiH, 2010. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

7.de5 Nfd7 8.c4 de5 9.Qb3 (9.Nc3 e4 10.Nd2 a5=) 9...a5 (9...Re8 10.0-0=) 10.a3 Re8 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Nc3 (11.0-0 e4 12.Nd4 c5=) 11...ab4 12.ab4 Ra1 13.Ba1 e4 14.Nd2 Qg5 (14...Na6 15.0-0 Nf6 16.Nd5+=) 15.0-0 (15.Nce4 Qg2 16.Bf3 Qh3 17.Bg7 Kg7 18.Qc3 f6=) 15...Nf6= 16.Rc1 (16.Kh1 Qh4=) 16...c6 (16...Bh3 17.Bf1=) 17.c5 Bh3 18.Bf1 Nbd7 19.Qc2 Pawn e4, live or die! 19...Bf5 20.Nc4 Ng4 (20...Ra8 21.Nd6+=) 21.Nd6 Be5 22.h3 (22.Ne8?? Bh2 23.Kh1 Qh4–+; 22.Nb7 Bh2 23.Kh1 Qh4 24.Ba6 Ne3 25.fe3 Bf4 26.Kg1 Be3 27.Kf1 Bg4 28.Ne4 Qh1; 22.Nce4?? Bh2 23.Kh1 Qh5–+; 22.Nde4?? Bh2 23.Kh1 Qh4–+) 22...Bh2 23.Kh1 Bd6 24.cd6 Qh4 25.Kg1 Nge5 26.Na4 (better is 26.Rd1+=) 26...Bh3? (26...Qg5 27.Kh2 Nd3 28.Bd3 ed3+/-) 27.gh3+– Nf3 28.Kh1 Ng5 29.Nc5 (29.Qb2 Re5 30.f4 ef3+/-) 29...Nh3 30.Bh3 (30.Nd7?? Ng5 31.Kg1 Nf3 32.Kg2 Qh2; 30.Nb7?? Ng5 31.Kg2 Qh3 32.Kg1 Nf3) 30...Qh3 31.Kg1 Ne5 (31...Qg4 32.Kf1 Qh3 33.Ke1 Nc5 34.bc5 Qh1 35.Kd2 Qg2+–) 32.Be5+– Re5 33.Ne4 Qg4 34.Ng3 (34.Kf1 Re4 35.d7 Qh3 36.Ke1 Re3 37.Kd2 Qd7 38.Ke3 Qh3 39.Kd2 Qh6 40.Kc3 Qf4+–) 34...Re3 (better is 34...Rd5+/-) 35.Kg2 (better is 35.Qd2 Re8 36.Re1+–) 35...Qf3+= 36.Kg1 Rd3 (36...Qg4 37.Qd2 Re8 38.Re1+–) 37.Re1 (37.Qa2 Qf4 38.Re1 Qd6=) 37...Rd6 38.Re8 Kg7 39.Qb2 (39.Qc5 Qf4+=) 39...Qf6 40.Qf6 Rf6 41.Re7 b6 42.Rc7 (42.Rb7!? b5 43.Re7=) 42...Rf4-/+ 43.Rc6 Rb4 ½–½. Saada,Julien (2295) – Nataf,Igor_Alexandre (2530), TCh–FRA Top, 2015. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Be2 e5)

7.de5 Nfd7 8.c4 de5 9.Nc3 Nc6 10.b5 Na5 11.Ne4+=.

7.de5 Nfd7 8.Nbd2 Ne5 9.c3 a5 10.b5 Nf3 11.Nf3=.

7.de5 Nfd7 8.Qd5 Nc6 9.0-0 Nde5 10.Ne5 de5 11.Qc5=.

7.de5 de5 8.Qd8 Rd8 9.Be5 Rd7 10.0-0 Nc6 11.Bc3 Ne4 (better is 11...Nb4 12.a3 Nbd5= (< 12...Nc2 13.Ra2+/-)) 12.a3?? (better is 12.Bg7 Kg7 13.b5+/-) 12...Nc3 13.Nc3 Bc3 14.Rad1 Rd1 15.Rd1 Be6 16.Rd3 Bb2 17.b5 Ne5 18.Ne5 Be5 19.Rd1 Bf6 20.a4 Rd8 0–1. Fournier,Frederic (1965) – leonrosatto, Active, 2011.

7.0-0 ed4

8.ed4 d5 9.Nbd2 a5 (9...Re8 10.Ne5=) 10.b5 a4 (10...Re8 11.Bd3=) 11.Ne5 (11.Re1 Bf5=) 11...Nbd7 (11...Be6 12.Ba3=) 12.f4 Nb6 13.Ba3 (13.Bd3 Qe7=) 13...Re8 14.Bd3 (14.Bc5 Bf5+=) 14...Ne4 15.Re1 (15.Ne4 de4 16.Be4 f6+=) 15...f6+= 16.Nef3 Bf5 17.Bb4 (17.Nf1 Nc4 18.Bc4 dc4+=) 17...Qd7 18.Nf1 (18.Rb1 Bf8-/+) 18...Nc4 (18...Bh6 19.g3-/+) 19.Rb1 (19.Ne3 Ne3 20.Re3 Bf8 21.Bf8 Kf8-/+ (21...Rf8?! 22.c4=)) 19...Bh6-/+ (worse is 19...Qb5 20.Ne3 Ne3 21.Bb5 Nd1 22.Be8 Re8 23.Rbd1=) 20.g3 Bg4 (20...Qb5?! 21.Ne3 Ne3 22.Bb5 Nd1 23.Be8 Re8 24.Rbd1=) 21.Bc4 dc4 22.Ne3 Bh5 (better is 22...Bf3 23.Qf3 Qd4=) 23.Kg2? (23.g4 Bg4 24.Ne5 Bd1 (worse is 24...fe5 25.Ng4 ed4 26.Re4+/-) 25.Nd7 Rad8 26.Rbd1 Rd7-/+) 23...Nd6 (23...c3 24.Qd3 Bf3 25.Kf3 Bf4 26.Kf4 Nd2–+) 24.Bd6 (24.Qe2 Rac8=) 24...cd6 (worse is 24...Qd6 25.Qe2+/-) 25.h3 (25.d5 g5 26.Ne5 A) 26...Bd1? 27.Nd7 Re3 28.Re3 (28.Rbd1?! Rc3+/-; worse is 28.Red1 gf4 29.Nb6 Rd8+=) 28...Bc2 29.Rb4 (worse is 29.Nf6 Kf7 30.Rb2 gf4+=) 29...gf4 30.gf4 Bf4 31.Nf6 Kf7 32.Rf3 Kf6 33.Rc4+–; B) worse is 26...fe5 27.Qh5 gf4 28.Nc4+/-; C) 26...de5 27.Qh5 gf4 28.Qh6 fe3=) 25...d5+= 26.Qd2 (26.Qe2 Re7+=) 26...Re4 (26...g5 27.g4 gf4 28.Nf5-/+) 27.Qf2 (27.Nh2 Rae8 28.Nhg4 Bg4 29.Ng4 Bg7+=) 27...Bf3 28.Kf3? (better is 28.Qf3 Rae8 29.Ng4+=) 28...Qh3–+ (28...Rd4?? 29.Ng4 Rf4 30.gf4+–) 29.Nd5?? (29.Ke2–+) 29...Qh5 (29...Qh5 30.g4 Qd5 31.Re4 f5 32.gf5 gf5–+) 0–1. Merkel,Markus (2120) – Kramer,Julian (2355), Heusenstamm Schloss Open, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2 e5)

8.ed4 Re8 9.a3+=.

8.ed4 Re8 9.c4 Ne4 10.Nbd2 Bf5 11.Ne4 Be4 (worse 11...Re4 12.Bd3 Rf4 13.Re1+/-) 12.Nd2 Bf5 13.Nb3 c6 14.Bf3 (14.Re1 d5=) 14...Nd7 15.Qd2 Nf6 16.Rfe1 Re1 17.Re1 d5 18.cd5 cd5 19.h3 Rc8 20.Rc1 b6 21.Qe2 Rc7 22.b5 Re7 23.Qd2 Ne4 24.Be4 (24.Qf4 Bf6 25.Ba3 Re8=+) 24...de4 25.Qf4 h5 26.Ba3 Rd7 27.Rc6 (better 27.Bb2!?=) 27...Rd5-/+ (worse 27...Bd4 28.Nd4 Rd4 29.Bb2 Rd1 30.Kh2=) 28.Rd6 Qc7 29.g3 Rd6 30.Bd6 Qc2 31.Be5 (31.g4!? hg4 32.hg4-/+) 31...f6-+ 32.Bb8 Qa2 33.Nd2 (33.g4 Be6 (33...Qb3?! 34.gf5 Qb1 35.Kg2=+) 34.Nc1 Qa1-+) 33...Qa1 34.Kh2 (34.Kg2 Bh3 35.Kh2 Bf5-+) 34...Qd4 35.Ba7 Bf8 (35...Bh6 36.Qb8 (worse 36.Qh6 Qf2 37.Kh1 e3 38.Qe3 Qe3 39.g4 Qh3 40.Kg1 Qg3 41.Kh1 Be6 42.Ne4 Bd5 43.Bb6 Be4) 36...Kg7 37.Qc7 Kh8 38.Qb8 Kh7 39.Qc7 Bg7 40.Qf4-+) 36.Nf1 (36.Qe3!? Qe3 37.fe3-+) 36...Qa1 37.Ne3 Qa7 38.Nf5 gf5 39.Qf5 Qe7 40.Qg6 Bg7 41.Qh5 Qe5 (41...Qd7 42.g4-+) 42.Qe2 (better 42.Qe5 fe5 43.Kg2-+) 42...f5 43.Qc4 Kh7 44.Kg2 e3 (44...f4 45.h4-+) 45.fe3 Qe3 46.Qf1 (46.Qc2 Kg6-+) 46...Qe4 (46...Qd2 47.Kh1 Qc2 48.Qe1-+) 47.Kh2 (47.Qf3 Bd4 48.Qe4 fe4-+) 47...Qc2 48.Kh1 (48.Qg2 Qd3 49.Qc6 Be5 50.Qb7 Kg6 51.Qb6 Bd6-+) 48...Bh6 (48...Kg6 49.Qe1 Kf7 50.Qf1-+) 49.Kg1 (49.Qe1 Qd3 50.Qe8 Qf3 51.Kh2 Qf2 52.Kh1 Qg3 53.Qf7 Bg7 54.Qh5 Kg8 55.Qf5 Qe1 56.Kg2 Qe2 57.Kg1 Bd4 58.Kh1 Qe3-+) 49...Be3 50.Kh1 Qc1 (50...Qc1 51.Qc1 Bc1-+) 0-1. Rozen,Eytan (2395) - Ben Ari,Yannay (2365), Elitzur IMA Summer, 2020. (=1.e3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2)

8.Qd4?? Nh5 9.Qd2 Bb2–+.

8.Nd4 Nc6+=.

8.Nd4 Nd5 9.b5 Nd7 10.c4 N5f6 11.Nd2 Re8 12.Qc2 Nc5 13.h3 a6 14.a4 Nfe4 15.Ne4 Ne4 16.Bf3 Qe7 17.Rfe1 Bd7 18.Ne2 Bb2 19.Qb2 Nc5 20.Nf4 Be6 21.Qc3 Qf8 22.Nd3 Nd3 23.Qd3 ab5 24.cb5 Ra7 25.a5 Qg7 26.a6 ba6 27.Ra6 Ra6 28.ba6 d5 29.Bd5 Bd5 30.Qd5 Qc3 31.Rb1 Qa3 32.Qb7 Re6?? 33.a7 (33.a7 Ra6 34.Qa6 Qa6 35.Rb8 Kg7 36.a8Q+–) 1–0. Hickl,Thomas – Bach,Horst, GER–chT N, 1975.

7.0-0 e4

8.Nfd2 d5 9.c4 c6 10.Nc3 Re8 11.b5 Nbd7 (11...cb5 12.Nb5 a6 13.Nc3 dc4 14.Nc4+=) 12.a4 (12.Qb3 c5+=) 12...Nb6 (12...c5 13.Rc1=) 13.a5 (13.c5!? Nbd7 14.Qb3+=) 13...Nc4= 14.Nc4 dc4 15.Bc4 cb5 16.Bb5 Bd7 17.Qa4 Rc8 18.Rfc1 Rc7 19.Ba3 Re6 20.h3 h5 21.Bd7 Rd7 22.Qb5 a6 23.Qa4 Nd5 24.Bc5 Bh6 25.Nd5+/- Rd5 26.Bb6 Qh4 27.Rc8+– Kh7 28.Qa2 Rd7 29.Rac1 Qf6 30.d5 Rb6 31.ab6 Qb6 32.Qc4 Re7 33.Qc5 Qf6? 34.d6 Rd7 35.Rc7 Rd6 36.Rf7! Qf7 37.Qd6 Bg7 38.Rc7 Qb3 1–0. Slabek,Grzegorz (2050) – Andrenko,Irina (2210), Cracovia, 2011. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2)

8.Nfd2 Qe7 9.Nc3=.

8.Nfd2 Re8 9.c4 Nc6 10.a3=.

8.Nfd2 Re8 9.c4 h5 10.Nc3 Bf5 11.a4 Nbd7 (11...Nc6 12.b5 Nb4 13.Rb1=) 12.a5+= a6 13.b5 Nf8 14.h3 N8h7 15.g4 (better is 15.ba6!? ba6 16.Rb1+=) 15...hg4=+ 16.hg4 Ng4 17.Bg4 Qg5 18.Nce4 Be4 19.f4 Qh4 20.Ne4 Re4 21.Qf3 (better is 21.Bc1!? Qg3 22.Kh1 Bd4 23.Ra2 (23.ed4? Nf6 24.Ra3 Qg4 25.Qg4 Ng4–+) 23...Be3 24.Qf3 Bf4 25.Bf4 Qf3 26.Rf3 (< 26.Bf3 Rf4 27.Kg2 Rf3 28.Rf3 Ng5-/+) 26...ab5 27.cb5=) 21...Ng5!-/+ 22.Qg2?? Re3–+ 23.fg5 Rg3 24.Bf3 Bd4 25.Bd4 Qd4 26.Kh2 Rg2 27.Bg2 Qc4 28.ba6 Ra6 29.Rac1 Qh4 30.Kg1 Ra5 31.Rc7 Rg5 32.Rcf7 Qd4 33.R1f2 Rf5 34.R7f5 gf5 35.Bh3 f4 36.Be6 Kg7 37.Kg2 Kf6 38.Bg4 b5 39.Re2 b4 40.Re6 Kg5 41.Bf3 b3 42.Re8 b2 43.Rg8 Kf6 44.Rf8 Kg7 45.Rb8 Qd3 46.Rb7 Kf6 47.Rb2 d5 48.Rb6 Ke5 49.Rb8 Qd2 50.Kf1 Qc1 51.Kg2 Kd4 52.Rb4 (52.Rb4 Kc3 53.Rb7–+) 0–1. florenc1330 (1865) – dors (1780), kurnik, 2011.

8.Nfd2 Re8 9.c4 h5 10.Nc3 Bf5 11.Nb3 Nbd7 12.c5 dc5 13.dc5 Bg4 14.Bg4 hg4 15.Na5 Qe7 16.Nb7+/- Rab8 17.Na5 Ne5 18.Ne2 Nfd7 19.Kh1?? Qh4 20.Qd4 Bf6 21.g3 Qh7=+ 22.h4 g5 23.Nf4? gf4–+ 24.ef4 Nd3 25.Qd7 Bb2 26.Rab1 f5 27.Qa4 Bf6 28.Nc6 Ra8 29.Na7? Qf7 30.b5 Qd5 31.b6 e3 32.Kg1 e2 33.Rfe1 Bd4 34.b7 Bf2 35.Kh2 Bg3 36.Kg3 Qf3 37.Kh2 g3 38.Kh3 Nf2 0–1. De Veauce,Louis (2200) – Miles,Anthony J (2375), Birmingham, 1974.

7.de5 Ng4

8.0-0 Nc6 9.h3 Nge5 10.Ne5 Ne5 11.Nd2 (11.Nc3 Re8=) 11...Nf3 12.Nf3 Bb2 13.Rb1 Bg7 14.c4 Re8 15.Qd2 Bf5 16.Bd3 Bd7 17.Rfd1 b6 (17...Qf6 18.Nd4=+) 18.c5= Bc6 19.Nd4 (19.Qe2 dc5 20.Bg6 Qe7=+) 19...Bd5 (19...Bd4!? 20.ed4 dc5 21.dc5 bc5=+) 20.Bb5 dc5 21.bc5 Rf8 22.Nc6 Bc6 23.Bc6 Qd2 24.Rd2 Rad8 25.Rc2 Rd3 26.Be4 Rd7 27.Kf1 Rfd8 28.Ke2 Kf8 29.Rb3 Bf6 30.Bc6 Rd1 31.Ra3 bc5 32.Ra7 c4 33.Rc4 (33.e4 Be5+=) 33...R8d2= 34.Kf3 Rf1 35.Ke4 Rff2 36.Bd5 (worse 36.Rc7 Ba1 37.Rd4 Bd4 38.ed4 Ra2-/+) 36...Rf5 (36...Rg2?? 37.Rcc7 Rd5 38.Rf7 Kg8 39.Kd5 (39.Rf6?! Rh5+–) 39...Ra2 40.Rh7+– (40.Rf6?! Ra7 41.e4 Ra5 42.Kd4 Ra4 43.Ke5 Ra5 44.Kf4 Rh5=)) 37.Rcc7 Exerts pressure on the backward pawn 37...Re5 38.Kf3 Rf5 39.Ke4 Re5 40.Kf3 Rf5 ½–½. Takahashi,Reiji (2065) – Noguchi,Koji (1975), Japan Chess Championship, 2019.

8.0-0 Ne5 9.Ne5 de5 10.Qd2 Qe7 11.Rd1=.

8.Nc3 Ne5 9.0-0 Be6 10.Nd4 Qh4 11.Ne6=.

8.Nc3 Ne5 9.Ne5 Be5 10.Rb1 (10.f4 Bc3 11.Bc3 Re8=) 10...c6 (10...Be6 11.Nd5=) 11.Ne4 Bb2 12.Rb2 d5 13.Ng3 h5 (13...b5 14.0-0+=) 14.h4 (14.c4 h4 15.Nf1 Be6=) 14...Qe7 (14...Be6 15.Qd4=) 15.Qd4 Nd7 16.0-0 Nf6 17.Rbb1 (17.c4 dc4 18.Bc4 Ng4=) 17...Bg4 18.f3 (18.c4 Be2 19.Ne2 dc4 20.Qc4 Ne4=) 18...Be6 19.Rbe1 Nd7 20.Qf4 a5 21.a3 (21.b5!?=) 21...ab4=+ 22.ab4 Ra4 23.Rb1 Rc8 24.Bd3 Qf6 25.Qf6 Nf6 26.Ne2 b6 (26...Re8 27.Nc3 Ra3 28.Ne2-/+) 27.Nf4 (27.Nd4 Kg7=) 27...Bd7 28.Rfd1 Kg7 (28...Rca8 29.b5 c5 30.Kf2=+) 29.Rb3 (29.c4 Rca8=) 29...Ra7 (29...Ra2 30.Kf2=+) 30.c4= dc4 (30...Re8 31.cd5 cd5 32.Bf1=) 31.Bc4 b5 32.Bd3 c5 33.bc5 Rc5 34.e4 Ne8 (34...Ra2 35.Rdb1 Ra5 36.g3=) 35.Bf1 Rb7 (35...Kf6 36.g3=) 36.Rb4 (36.Nd3!? Rc2 37.Ne5+=) 36...Kf8 37.Nd3 Rcc7 (37...Rc2 38.Ne5 Nf6 39.Nd7 Nd7 40.Rb5 Rb5 41.Bb5+/-) 38.Ne5 Be6 (38...Ke7 39.Nd7 Rd7 40.Rd7 Rd7 41.Bb5+/-) 39.Rb5 (39.Bb5 Rc5 40.Be8 Rb4 41.Nd7 Bd7 42.Bd7 f5 43.ef5 gf5-/+) 39...Rb5 40.Bb5 Rc5 41.Nd7 Bd7 42.Bd7 Nf6 43.Bh3 Ke7 (43...g5 44.hg5 Rg5 45.f4+/-) 44.Ra1 (44.Kf2 Rc2 45.Ke3 Rc5+/-) 44...Rc7 (44...Ne8 45.Kf2+/-) 45.Kf2 Nd7 ½–½. Pedersen,Erik (2400) – Schandorff,Lars (2430), DEN–chT, 1994.

8.c4 Nc6 9.Qb3 Nce5 10.0-0 Nf3 11.Bf3 Bb2 12.Qb2 Ne5 13.Be2 Be6 14.Nd2 f5 15.f4 Nd7 16.Bf3 c6 17.Qd4 Nf6 18.Nb3 Qe7 19.Rad1 Rad8 20.Na5 a6 21.a3 Qc7 22.Qc3 d5 23.Qe5 Qe7 24.Nb7! Qb7 25.Qe6 Kg7 26.cd5 cd5 27.Qe5 Rfe8 28.Qd4 Kf7 29.Rc1 Rc8 30.Rfd1 Rc1 31.Rc1 Re7 32.Rc5 Rd7 33.h3 Qa8 34.Qc3 Qb7 35.Rc6 (35.Rc6 Ne8 36.Kh2+–) 1–0. Huch,Reiner (2310) – Loder,Wilhelm (2090), Regionalliga SO, 2006. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 d6 5.Bb2 0-0 6.Be2 e5 7.de5 Ng4)

8.c4 Nc6 9.Qb3 Nge5 10.Nbd2 Qf6 11.Rb1 Bf5 12.e4 Be6 13.b5 Nb8 14.Ne5 de5 15.0-0 Rd8 16.Qc3 Nd7 17.Rbd1 b6 18.a4 Nc5 19.Qc2 Qf4 20.g3 Qh6 21.Nf3 f5 22.Ne5 fe4 23.Bg4 Be5 24.Be6 Ne6 25.Be5 Ng5 26.f4 ef3 27.h4 Ne6 28.Rf3 Qh5 29.Rd8 Rd8 30.Qe2 Rd7 31.Qe4 Rd1 32.Kf2 Rd7? 33.Bc3 Qc5 34.Kg2 Nf8?? 35.Qe8+– Rd1 36.Qf7 1–0. Hickl,Joerg – Korn,Juergen Christof, GER–chT N, 1978.

8.c4 Nc6 9.Nc3 Nge5 10.Ne5 Ne5 11.Rc1 Be6 12.Nb5 Nd3 (12...a5 13.a3=+) 13.Qd3= Bb2 14.Rd1 Bg7 15.Bf3 Rb8 (15...a5 16.Bb7 Rb8 17.Bd5=) 16.0-0 (< 16.Na7 c6 17.c5 Ra8 18.Nc6 bc6 19.Bc6 Ra2-/+) 16...a6 17.Nd4 Bd7 18.Rd2 Qg5 19.Nb3 Rfd8 20.Rfd1 Bf5 21.e4 Bd7 22.Qc2 Be5 23.Rd3 b6 24.g3 f5 25.c5 Bb5 26.R3d2 bc5 27.bc5 f4 28.Nd4 Qf6 29.Bg4 h5 30.Bh3 h4 31.gh4 Qh4 32.Be6 Kg7 33.Nf3 Qf6= 34.Bg4 Bc3 35.Rd5 Kh6 36.cd6 cd6 37.Rg5 Be8 38.h4 Be5 39.Kg2 Rb2? 40.Qc7+– Rdb8 41.Ne5 de5 42.Rd6 f3 43.Kh3 Qg7 44.Rh5# 1–0. Svirjov,I (2345) – Seeman,T (2425), ch–EST, Tallinn EST, 2000.

8.c4 de5 9.h3 Nf6 10.Qd8 Rd8 11.Ne5+/-.

8.Nbd2 Nd7 9.Nd4 Nde5 10.h3 Nf6 11.c4 Re8 12.Qb3 c5 13.bc5 dc5 14.N4f3 Nc6 15.0-0 b6 16.Rad1 Qe7 17.Nb1 Ne4 (17...Bb7 18.Nc3+=) 18.Bg7 Kg7 19.Nfd2 Na5 20.Qb2 Qf6 21.Qf6 Nf6 (21...Kf6? 22.Ne4 Re4 23.Bf3+–) 22.Nb3 Nb3 23.ab3 Bb7 24.Nc3 Bc6 25.Bf3 Ne4 (25...Bf3 26.gf3 h6 27.Rd6=) 26.Be4+= Be4 27.Rd2 Bc6 28.Rfd1 Re7 29.Rd6 Rc8 30.g4 h6 31.Kh2 Kf8 32.Kg3 Ke8 33.h4 Rd7 34.Rd7 Bd7 35.e4 Bc6 36.Kf4 Ke7 37.e5 f6 38.ef6 Kf6 39.Rd6 Kf7 40.h5 g5 41.Kf5 Kg7 42.Rg6 Kh7 43.Nd5 Bd5 44.cd5 c4 45.bc4 Rc4 46.d6 Rd4 47.Ke5 Rd2 48.Re6 Kg7 49.Re7 Kf8 50.Ra7 Ke8 51.Re7 Kd8 52.Rh7 Rf2 (52...Re2 53.Kd5 Rd2 54.Kc6 Rc2 55.Kb6 Rb2 56.Kc5 Rc2 57.Kd5 Rd2 58.Ke5 Re2 59.Kf6 Rf2 60.Kg7+–) 53.Rh6 b5 54.Rh8 Kd7 55.h6 b4 (55...Re2 56.Kf5+–) 56.h7 Rh2 (56...Re2 57.Kd5 Rd2 58.Kc5 Rc2 59.Kb4+–) 57.Rb8 1–0. Larsen,Bent (2520) – Bielicki,Carlos (2290), La Plata, 1997. (=1.e3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Be2 d6 5.d4 0-0 6.Nf3)

8.Nbd2 Ne5 9.c3 a5 10.b5 Bf5 11.Ne5=.

8.Nd4 Ne5 9.Nc3 c5 10.bc5 dc5 11.Nb3=.

8.h3 Ne5 9.Ne5 (9.Nc3 Be6=) 9...de5 10.Qd8 Rd8 11.Nd2 Be6 12.Nc4 (12.a3 Nd7=) 12...Bc4 (12...Nc6 13.a3+=) 13.Bc4= e4 14.Bg7 Kg7 15.Ke2 Nc6 16.Rhd1 Rd1 (16...Nb4 17.Rab1 a5 18.Rd8 Rd8 19.c3=) 17.Rd1+= Rd8 18.Bd5 Nb4 19.Bb7 Rd1 20.Kd1 Na2 21.Kd2 Nb4 22.Kc3 a5 23.Be4 f5 24.Bd3 Kf6 (24...Nd5 25.Kd4 Nb6 26.Kc5=) 25.Bc4 (better is 25.Kc4!?+=) 25...Ke5= 26.Kb3 Nd5 (26...c5 27.c3 Nd5 28.Bd5 Kd5 29.f3+/-) 27.Bd3 (better is 27.Bd5!? Kd5 28.Ka4+/-) 27...Nb6= 28.f4 Ke6 29.e4 fe4 30.Be4 Kf6 31.g4 ½–½. Mrkonjic,Nenad (2390) – Vukic,Milan (2420), Prva A Liga SSFBiH, 2010. (=1.d4 Nf6 2.Nf3 d6 3.b4 g6 4.Bb2 Bg7 5.e3 0-0 6.Be2 e5 7.de5 Ng4)

5.Be2 Ne4

6.0-0?? Bb2–+ (7.Nc3 d5–+) 0–1. elsh1403 – death555, kurnik, 2011.

6.Bg7 Kg7 7.0-0+=.

6.Bg7 Kg7 7.d3 Nd6 8.a4 e6 9.c4 Qf6 10.Nbd2 Ne8 11.0-0 d5 12.cd5 ed5 13.Nd4 b6 14.b5 c5 15.bc6 Nc6 16.N2f3 Nd4 17.Nd4 Nd6 18.Bf3 Be6 19.Qb3 Qe5 20.Rac1 Rfc8 21.Qa3 Rc1 22.Rc1 Rc8 23.Rc8 Nc8 24.Nc6 Qd6 25.Qc1 Bf5 26.d4 Be4 27.Be4 de4 28.Ne5 Ne7 29.Qb1 Nd5 30.Qe4 Nc3 31.Qf3 f6 32.Nc4 Qb4 33.Qb7 Kh6 34.Nd2 Ne2 35.Kh1 Qd2 36.h3 Qe1 37.Kh2 Qf2 38.h4 Qe3 39.Qf7 Qg3 40.Kh1 Qh4 0–1. chocobom – icomet, kurnik, 2012.

6.Bg7 Kg7 7.d3 Nf6 8.c4 d5 9.c5 Bf5 10.Nc3 Na6 11.a3 c6 12.0-0 b6 13.d4 Nc7 14.cb6 (14.Ne5!? Qe8 15.Qa4+/-) 14...ab6+= 15.Ne5 Bd7 16.Qc1 b5 (16...Ne6 17.Qc2+=) 17.Nd1 Ra6 18.Nb2 Qa8 19.Nbd3 Bf5 20.Nc5 Rb6 21.f3 Na6 (21...Qe8 22.Qc3+/-) 22.Nb3 (better is 22.g4!? Bc8 23.g5+–) 22...Nb8+/- 23.Na5 Rc8 24.Qc5 Nbd7 25.Qe7 Ne5 26.Qe5 Re8 27.Qc7 Reb8? (better is 27...Ra6 28.Kf2 Ra7 29.Qc6 Ra5 30.Qa8 Raa8 31.Bb5 Bd7 32.Bd7 Nd7+=) 28.g4+– Bc2? (28...Be6 29.Rfc1 h6 30.Nc6 R8b7+–) 29.Rac1 Ba4 30.g5 (30.g5 Ng8 31.Nc6+–; 30.Nc6?! R8b7 31.Qd8 Qd8 32.Nd8 Re7+–; 30.Rc6?! Rc6 31.Qc6 h6+–) 1–0. lican – msouto, kurnik, 2012.

6.Bg7 Kg7 7.d3 Nf6 8.Nbd2 Kg8 9.0-0 b6 10.h3 Bb7 11.a3 Nc6 12.c4 d6 13.Qc2 Ne5 14.Ne5 de5 15.Bf3 Bf3 16.Nf3 Nh5 17.Ne5 f6 18.Nc6 Qd6 19.b5 a6 20.a4 ab5 21.ab5 Ra1 22.Ra1 f5 23.Qb3 Nf6 24.c5 Qd5 25.Ne7 Kf7 26.Nd5 Nd5 27.Qd5 Ke7 1–0. eliton – juniorgj, kurnik, 2012.

5.Be2 e6

6.0-0 b6 7.c4 a5 8.b5 c5 9.a4 d5 10.d4 cd4 11.Bd4 Nbd7 12.Nbd2 Bb7 13.Rc1 Qc7 14.Nb3 Ne5 15.Be5 Ne4 16.Bc7 Nc3 17.Rc3 Rac8 18.Bb6 Rc4 19.Rc4 Rc8 20.Rc8 Bc8 21.Na5 h6 22.Nd4 Kh7 23.Nac6 Bd7 24.Bd3 e5 25.Nb3 d4 26.f4 de3 27.Ne5 h5 28.Nd7 e2 29.Qe2 Kh6 30.Qe7 f5 31.Ne5 g5 32.Qg5 Kh7 33.Bf5 Kh8 34.Qh5 Bh6 35.Qh6 Kg8 36.Be6 1–0. Abdullaevich (1895) – Nick_the_slick, lichess.org, 2020.

6.0-0 Nc6 7.b5 Ne7 8.d4 b6 9.Nbd2 a6 10.a4 Bb7 11.c4 a5 12.Qb3 Ne4 13.Ne4 Be4 14.Rac1 d6 15.Rfd1 Nf5 16.c5 Bd5 17.Qc2 Bh6 18.e4 1–0. Orang4Utan (1770) – avad (1755), lichess.org, 2017.

6.0-0 Nd5 7.Bg7 Kg7 8.a3 a5 9.c4 Ne7 10.b5 d5 11.c5 c6 12.a4 cb5 13.ab5 b6 14.c6 Nf5 15.Nc3 Re8 16.Qb3 d4 17.ed4 Nd4 18.Nd4 Qd4 19.Bf3 Ra7 20.Rac1 Rd8 21.Ne4 Qb4 22.Qb4 ab4 23.c7 1–0. Adjailton (1825) – areyoushow (1825), lichess.org, 2021.

6.0-0 Qe7 7.a3 a5 8.c3 ab4 9.cb4 c5 10.bc5 Qc5 11.d4 Qe7 12.Nbd2 d5 13.Qb3 Nc6 14.Bc3 Qc7 15.Rfc1 Qd6 16.Bb5 Na5 17.Qb4 Nc6 18.Bc6 Qb4 19.Bb4 bc6 20.Bf8 Kf8 21.Rc6 Bb7 22.Rc7 Ba6 23.Nb3 Bc4 24.Nc5 Ne4 25.Ne4 de4 26.Ne5 Be5 27.de5 Bd5 28.a4 1–0. Phomopsis (1740) – tarrasch096 (1730), lichess.org, 2020.

6.b5 a6 7.c4 ab5 8.cb5 c6 9.a4 cb5 10.ab5 Ra1 11.Ba1 d5 12.Nc3 Qb6 13.0-0 Bd7 14.Qc2 Rc8 15.Rb1 Ne4 16.d4 Be8 17.Qb3 Nd7 18.Ne4 de4 19.Nd2 Nf6 20.h3 Qa5 21.Nc4 Nd5 22.Na5 1–0. Abdullaevich – NappysAreGreat (1660), lichess.org, 2018.

6.c4 d5 7.0-0 b6 8.cd5 ed5 9.Qc1 c6 10.a3 Bb7 11.Nc3 Nbd7 12.Re1 Rc8 13.Bd3 c5 14.Qd1 cb4 15.ab4 Ra8 16.Ne2 Re8 17.Ng3 h5 18.Bb5 Re7 19.Ne2 Ng4 20.Bg7 Kg7 21.h3 Nge5 22.Ne5 Ne5 23.d4 Nc4 24.Nf4 a6 25.Bc4 dc4 26.Qc2 b5 27.Rad1 Be4 28.Qc3 a5 29.ba5 Ra5 30.d5 Kh6 31.d6 Rd7 32.Qb4 Bc6 33.Qc5 Ra6 34.g4 hg4 35.hg4 Qg5 36.Qg5 Kg5 37.Nd5 Bd5 38.Rd5 Kg4 39.Kg2 f5 40.f3 Kg5 41.Red1 b4 42.R5d4 Rc6 43.Kg3 b3 44.f4 Kf6 45.Rb1 Ke6 46.e4 Rdd6 47.ef5 gf5 48.Rd6 Rd6 49.Re1 Kf6 50.Rb1 Rc6 51.Kf3 Ke6 52.Ke3 Kd5 53.Kd2 Kc5 54.Kc3 Rd6 55.Re1 Rd3 56.Kb2 Kb4 57.Re5 Rd2 58.Kb1 Rf2 59.Rf5 Kc3 0–1. Adamkosh (1925) – VovaN171 (1905), lichess.org, 2020.

6.c4 d6 7.b5 c6 8.a4 c5 9.0-0 b6 10.h3 Bb7 11.Nc3 Nbd7 12.d4 Ne4 13.Ne4 Be4 14.Qd2 Rb8 15.dc5 Bb2 16.Qb2 dc5 17.Ne5 Ne5 18.Qe5 Bd3 19.Rfd1 Be2 20.Rd8 Rbd8 21.a5 Bc4 22.ab6 ab6 23.Ra6 Bb5 24.Rb6 Rd5 25.Qc3 Bd3 26.f3 Rc8 27.e4 Rd7 28.Kf2 c4 29.Ke3 h6 30.Ra6 Bf1 31.Qc2 Bd3 32.Qa4 Rdd8 33.Rc6 Rb8 34.Qa7 Rb3 35.Rc7 Bf1 36.Kf2 Rd2 37.Kf1 Rb1 0–1. Abdullaevich – dody75, lichess.org, 2019.

6.d3 Qe7 7.a3 Nc6 8.Nbd2 b6 9.b5 Na5 10.c4 Bb7 11.a4 c6 12.0-0 cb5 13.ab5 Rac8 14.e4 d5 15.Ba3 Qc7 16.Bf8 Rf8 17.e5 Nh5 18.d4 Nf4 19.cd5 Bd5 20.Re1 Nc4 21.Rc1 Ne2 22.Qe2 Rc8 23.Nc4 Bc4 24.Qe3 Qd7 25.Qc3 Qb5 26.Nd2 Bh6 27.Red1 Qd5 28.Rc2 b5 29.Qh3 Bd2 30.Rdd2 a5 31.Qa3 b4 32.Qa4 b3 33.Rc1 Rb8 34.Qc4 Qc4 35.Rc4 b2 36.Rb2 Rb2 37.g3 Rb4 38.Rc8 Kg7 39.Ra8 a4 40.Kg2 Rd4 41.Kf3 Rb4 42.h4 Rb3 43.Kg4 a3 44.f4 h5 45.Kh3 f6 46.Ra7 Kf8 47.ef6 Rf3 48.Kg2 Rc3 49.Kh3 Rb3 50.Kg2 Rb2 51.Kh3 a2 52.g4 Rb3 53.Kg2 Rb2 54.Kg3 Rb3 55.Kf2 Rb2 56.Ke3 hg4 57.Ke4 g3 58.Ke5 g2 59.Ke6 Re2 0–1. Adjailton (1815) – A_Amin (1735), lichess.org, 2020.

5.Be2 Re8

6.0-0 a6 7.d3 b6 8.Nbd2 Bb7 9.c4 d6 10.Qc2 Nbd7 11.a4 Rc8 12.h3 e5 13.e4 Nb8 14.b5 ab5 15.ab5 Nbd7 16.Ra7 Rb8 17.Rfa1 c5 18.bc6 Bc6 19.d4 ed4 20.Nd4 Rb7?? 21.Nc6+– Qc7 22.Rb7 Qb7 23.Nb4 Nc5 24.Nd5 Nfe4 25.Bg7 Kg7 26.Ne4 Ne4 27.Bf3 f5 28.Qb2 Kh6 29.Qb6 Qd7 30.Qb2 Rc8 31.Qc1 Kg7 32.Be4 fe4 33.Qc3 Kh6 34.Qd4 Qf5 35.Ne3 Qf7 36.Qd6 Re8 37.c5 Re6 38.Qd4 Qe7 39.Ra5 Rc6 40.Ra4 Qe6 41.Qe4 Qd7 42.Rd4 Qc7 43.Ng4 Kg7 44.Qe5 Qe5 45.Ne5 Rc5 46.Nf3 Rc1 47.Kh2 Rc2 48.Kg3 h5 49.h4 Kf6 50.Rd5 Ke6 51.Ra5 Kf6 52.Ne5 Re2 53.Nf3 Rb2?? 54.Ng5 Rb3 55.f3 Rb4 56.Ra6 Kg7 57.Ra7 Kf6 58.Rf7 Ke5 59.Ne4 Ke6 60.Rf6 Ke7 61.Rg6 Kf7 62.Rg5 Rb3 63.Rh5 Rb2 64.Ra5 Kg6 65.Kh3 Kg7 66.g4 Rb3 67.Kg3 Kg6 68.Ra6 Kg7 69.h5 Kh7 70.g5 Kg7 71.Kg4 Rb4 72.Ra7 Kf8 73.h6 Kg8 74.g6 Rb8 75.f4 Kh8 76.f5 Kg8 77.Kg5 Kh8 78.Nf6 Rf8 79.Rh7# 1–0. ejdrzej (1785) – jurand55, kurnik, 2012.

6.0-0 c6 7.d3 d5 8.a3 a6 9.Nbd2 Nbd7 10.c4 dc4 11.Nc4 Qc7 12.Rc1 b5 13.Ncd2 Bb7 14.d4 Rac8 15.Qb3 Nb6 16.Ne5 Nfd5 17.Bf3 h5 18.Bd5 Nd5 19.e4 Be5 20.ed5?? Bg7?? 21.dc6+/- Bc6 22.d5 Qd6 23.dc6 Qd2+/- 24.Bg7 Kg7 25.Rfd1 Qf4 26.c7 Rc7+= 27.Rc7 Qc7 28.Qb2 Kg8 29.Re1 e6 30.h3 Rd8 31.Qf6 Rd2 32.Re5 Qd8 33.Qf4 Rd1 34.Kh2 Rd4 35.Qe3 Rd3 36.Qa7 Ra3 37.Rc5? Kg7 38.Rc7 Qf8 39.Rc6? Rb3 40.Ra6 Rb4 41.Re6 Rb2 42.Re4 Rf2?? 43.Qf2+– Qb8 44.Kg1 b4 45.Qb2 Kh7 46.Qb4 Qa7 47.Kh1 Qa1 48.Kh2 Qa7 49.Rf4 Qc7 50.Qc4 Qb8 51.Qf7 Kh6 52.Qf8 Kh7 53.Qb8 (53.Qb8 h4 54.Qc7 Kh6 55.Rh4 Kg5 56.Qf4) 1–0. exp2005 – jurand55, kurnik, 2011.

5.Be2 Ne8

6.Bg7 Ng7 7.c4 d5 8.c5 e5 9.Ne5 Qf6 10.d4 Nc6 11.Nc6 Qc6 12.b5 Qf6 13.a4 Nf5 14.0-0 Re8 15.Nc3 c6 16.b6 ab6 17.cb6 h5 18.h3 h4 19.a5 Nd6 20.Bg4 Ne4 21.Ne4 Re4 22.Bc8 Rc8 23.a6 ba6 24.Ra6 c5 25.dc5 Rc5 26.Ra8 Kg7 27.b7 Rec4 28.b8Q Kh6 29.Qh8 Qh8 30.Rh8 Kg7 31.Rd8 Ra5 32.Rd5 Ra2 33.Rg5 Rcc2 34.Qd4 Kh6 35.Qh4 Kg7 36.Qf4 Rab2 37.Rg3 Rb7 38.Rf3 Rcc7 39.Qf6 Kh7 40.Rf4 Rb5 41.Rh4 Rh5 42.Rh5 gh5 43.Qg5 Rc6 44.Qh5 Kg7 45.Rd1 Rg6 46.g4 Kf6 47.Rd6 Ke7 48.Rg6 fg6 49.Qg6 Kf8 50.Qh7 Ke8 51.Kg2 Kd8 52.Kf3 Kc8 53.Ke4 Kb8 54.Kd5 Ka8 55.Kc6 1–0. Abdullaevich (1695) – racofer (1705), lichess.org, 2019.

6.Bg7 Ng7 7.c4 e6 8.Nc3 d5 (8...d6 9.0-0+–) 9.0-0 Na6 (9...a6 10.d4+–) 10.b5 Nc5 (10...Nb8 11.d4+–) 11.d4 (11.Qc2 dc4 12.Bc4 Nd7+–) 11...Ne4 12.Ne4 de4 13.Nd2 f5 14.f4 ef3 (14...Ne8 15.Qe1+–) 15.Nf3 (worse 15.Bf3 f4 16.Be4 fe3+=) 15...Ne8 16.Qe1 (16.Ne5 Nf6+–) 16...Nf6 17.Ne5 Nd7 18.Qg3 (18.Nd7 Qd7 19.Qg3 Qd6+–) 18...Ne5 19.Qe5 Qd6 20.Qd6 cd6 21.a4 e5 22.Bf3 (22.c5 dc5 23.Bc4 Kg7 24.dc5 a6+=) 22...e4 23.Be2 a5 (23...Be6 24.a5+=) 24.c5 dc5 (24...Be6 25.Rac1+=) 25.dc5 (25.Bc4 Kg7 26.dc5 Re8+–) 25...Rf6 (25...Be6 26.c6+=) 26.Rac1 Be6 (26...Kf7 27.Bc4 Be6 28.Be6 Re6 29.g4+=) 27.Rfd1 (27.c6 bc6 28.Rc6 Kg7+–) 27...Rc8 (27...Rff8 28.Kf2+=) 28.Bc4 (28.c6 bc6 29.Rc6+– (worse 29.bc6 Bb3 30.Rd7 Rfc6 31.Rc6 Rc6-/+)) 28...Kg7?? (better 28...Kf8 29.Be6 Re6=) 29.Be6+– Re6 30.Rd7 Kf6 31.Rb7 h5 (31...Re7 32.Rb6 Ke5 33.Ra6+–) 32.Rd7 (better 32.c6 g5 33.c7+–) 32...g5 (32...Re7 33.Rd6 Re6+–) 33.c6 f4 34.Kf2 (34.c7 fe3 35.Rd8 Rc7 36.Rc7 h4+–) 34...g4 (34...h4 35.c7 h3 36.gh3+–) 35.ef4 e3 36.Ke2 h4 (36...Re4 37.c7 Ke6 38.Rd8 Rc7 39.Rc7 Ra4 40.b6 Rf4 41.Rc6 Ke5 42.Rc5 Ke6 43.b7+–) 37.Rc3 (better 37.c7 Kg6+–) 37...Re4 38.b6 Rf4 (38...Rb4 39.b7 Re8 40.Re3 Rh8+–) 39.b7 Re8 40.Re3 (40.Re3 Re3 41.Ke3+–) 1–0. Santos Junior,Ailton Antonio – Vilas Boas,CT, Regional Sudeste, 2007.

5.Be2 h5

6.0-0 b6 7.c4 c6 8.d3 d5 9.Nbd2 dc4 10.Nc4 Bd7 11.Nce5 Qc8 12.Rc1 Ng4 13.Ng4?? (13.d4 Ne5 14.Ne5 h4+/-) 13...hg4?? (better is 13...Bb2!? 14.Nge5 Bc1 15.Qc1 a5+=) 14.Bg7 (better is 14.Ne5!?+/-) 14...gf3= 15.Bf8 fe2 16.Qe2 Kf8 17.e4 a5 18.ba5 Ra5 19.Qe3 Ra2 20.Qh6 (better is 20.Qb6!? Bg4 21.h3+=) 20...Kg8+= 21.f4 Rd2?? 22.Rf3?? Bg4 23.Rg3 Na6?? 24.f5+– Bf5 25.ef5 Qf5 26.Qd2 Nc5 27.Rg5 Qf6 28.Rgc5 bc5 29.Rc5 Qa1?? 30.Rc1 Qd4 31.Kh1 c5 32.Qc3 Qe3 33.Re1 Qf2 34.Ra1 f6 35.Qe1 Qd4 36.Ra8 Kf7 37.Ra7 Qd6 38.Qa1 Qd3 39.Qa2 c4 40.Qa1 f5 41.Qc1 Kf6 42.Rc7 e5 43.Rc4 f4 44.Rc6 Kg5 45.Qe1 Qd5 46.Ra6 Kf5 47.Ra5 Qd4 48.Qb1 Kg4 49.Ra6 g5 50.h3 Kh5 51.Qh7 1–0. horacyad2010 – riza25, kurnik, 2011.

6.0-0 d6 7.c4 b6 8.Nc3 Bb7 9.d4 c5 10.d5 (10.a3 Na6+=) 10...e6 11.a3 ed5 12.cd5 cb4 13.ab4 Nbd7 (13...Nd5 14.Qb3=) 14.e4 (better is 14.Ba6 Ba6 15.Ra6+/-) 14...Ne4= 15.Ne4 Bb2 16.Rb1 Bg7 (16...Nf6 17.Rb2 Ne4+=) 17.Nfg5 (17.Nd6 Bc8 18.Rc1 Qe7 19.Nc8 Rfc8+=) 17...f5 (better is 17...Qe7 18.Bb5 Nf6 19.Nf6 Qf6-/+) 18.Ne6 Qe7 19.N4g5 Rf6 20.Bc4 a6 21.Re1 Ne5? 22.Bb3 b5? 23.f4 Ng4 24.Rc1 Re8?? 25.Rc7+– Re6 26.Re7 R6e7 27.Re7? Re7-/+ 28.Ne6 Bf6?? 29.h3 Ne3 30.Qe2 Nd5 31.Qf3 Re6 32.Bd5+= Bd5 33.Qd5 Kf7 34.Qb7 Re7 35.Qa6 g5 36.Qb5 gf4 37.Qc4 Kg6+/- 38.Qf4 Re1 39.Kf2 Re4? 40.Qd6+– Kg5 41.b5 Rd4 42.Qg3 Kh6 43.Qe3 f4 44.Qe6 Kg6 45.b6 Rd2 46.Ke1 (46.Ke1 Rd8 47.Qe4 Kg7 48.Qf4 Re8 49.Kd1+–) 1–0. elsh1403 – gabrie2010, kurnik, 2011.

5.Be2 Nh5

6.d4 b6 7.0-0 c5 8.bc5 bc5 9.Nbd2 d5 10.c4 dc4 11.Nc4 cd4 12.Nd4 (worse is 12.ed4 Nf4=) 12...Nf6 13.Rc1 Ba6 14.a4 Bc4 15.Bc4 e6 (15...Qb6 16.Ba3 Re8 17.Qf3+–) 16.Qb3 (better is 16.Ba3!? Re8 17.Bb5+–) 16...Nbd7 17.Nb5 Nc5 18.Qa2 Nce4 19.Rfd1 Qb6 20.a5 Qb7 21.Ba3 (better is 21.a6!? Qb8 22.f3+/-) 21...Rfd8+= 22.Rd8 Rd8 23.h3 a6 24.Nd4 Nd5 25.Bd5 ed5 26.Nc6 Re8 27.Qd5 Nc3 28.Qf3?? Nb5?? 29.Ne7! Re7 30.Be7 Qe7 31.Qa8 Bf8 32.Qa6 Nd6 33.Qb6 Nf5 34.a6 Qb4?? 35.Qb4+– Bb4 36.a7 Bd2 37.Rc8 Kg7 38.a8Q h5 39.Qd5 Bb4 40.e4 Nd6 41.Rc7 Kh6 42.e5 Nf5 43.Qf7 Kg5 44.e6 Bd6 45.Rd7 Bb4 46.g3 h4 47.gh4 Nh4 48.Rd5 Kh6 49.Qf4 g5 50.Qb4 Nf3 51.Kg2 Kg6 52.Kf3 Kf6 53.Kg4 Ke6 54.Rg5 Kf6 55.h4 Ke6 56.Qf4 Ke7 57.Re5 Kd6 58.Qd4 Kc6 59.Rc5 Kb6 60.Qb4 Ka6 61.Ra5# 1–0. tadziczek – piterkrajdzer, kurnik, 2012.

6.Bg7 Ng7 7.0-0 d5 8.c4 Bg4 9.d4 dc4 10.Bc4 e6 11.Nbd2 c6 12.a4 Nd7 13.h3 Bf3 14.Nf3 (worse is 14.gf3 e5+=) 14...Nb6 15.Bd3 Nd5 16.Qb3 Qb6 17.b5 cb5 18.ab5 Rfc8 19.Rfc1 Ne8 20.Ne5 Nd6 21.Nd7 Qd8 22.Nc5 b6 23.Ne4 f5 24.Nc3 Nc3 25.Rc3 Rc3 26.Qc3 Qc8 27.Qb3 Kf7 28.Ra2 Qd7 29.Rc2 Rc8 30.Bc4 Nc4 31.Rc4 Rc4 32.Qc4 Ke7 33.Kf1 Kd8 34.Ke2 Qd6 35.f4 Kd7 36.Kd3 Qa3 37.Qc3 Qc3 38.Kc3 Kd6 39.Kc4 h6 40.g3 g5 41.g4 fg4 42.hg4 gf4 43.ef4 Ke7 44.d5 Kf6?? 45.d6 Kf7 46.Kd4 Ke8 47.Ke5 Kd7 48.f5 ef5 49.Kf5 Kd6 50.Kg6 Kc5 51.Kh6 Kb5 52.g5 a5 53.g6 a4 54.g7 a3 55.g8Q Ka4 56.Qa2 b5 57.Kg5 b4 58.Qc2 Ka5 59.Qb3 Kb5 60.Kf5 Kc5 61.Ke5 Kb5 62.Kd5 Ka5 63.Kc5 Ka6 64.Qb4 Ka7 65.Kc6 a2 66.Qb7 1–0. elsh1403 – kryaga, kurnik, 2011.

6.Bg7 Ng7 7.c4 b6 8.d4 Bb7 9.b5 d6 10.0-0 Nd7 11.Nbd2 Re8 12.Qc2 e5 13.de5 Ne5 14.Ne5 Re5 15.Nf3 Rf5 16.Rad1 Qf6 17.Nd4 Rg5 18.g3 Nf5 19.Nc6 (better is 19.Qd2!?+=) 19...Bc6+= 20.bc6 Re8 21.Rd5 Qe6 22.Bd3 a5?? 23.Bf5?? Rf5= 24.Rf5 gf5 25.Rd1 Qf6 26.a4 Re4 27.Rd5 Qe6 28.Kg2 Kg7 29.h3= Kg6 30.Qd3 Qe8 31.Rd4 Qc6–+ 32.Re4 fe4 33.Qd4 Qa4 34.Qe4-/+ Kf6 35.g4 h6 36.h4 Qc6?? 37.Qc6+– 1–0. ejdrzej (1750) – kot63 (1695), kurnik, 2012.

6.Bg7 Ng7 7.d3 d6 8.Nbd2 e5 9.c3 c6 10.Rc1 Be6 11.0-0 Ba2 12.Qa4 Be6 13.c4 a6 14.b5 cb5 15.cb5 Nd7 16.Qb4 Nc5 17.d4 ed4 18.ed4 a5 19.Qa3 Nd7 20.Qd6 Nf6 21.Qe5 Nf5 22.Ne4 Ne4 23.Qe4 b6 24.Qf4 f6 25.Bc4 Bc4 26.Rc4 Rc8 27.Rc8 Qc8 28.g3 Rd8 29.g4 Ng7 30.Qf6 Qg4 31.Kh1 Rf8 32.Ne5 Qe4 33.f3 Rf6 34.fe4 Rf1 35.Kg2 Rb1 36.d5 Rb5 37.Nc4 Ne8 38.d6 Rb4 39.e5 Rc4 40.d7 Kf7 41.e6 Ke7 42.de8Q Ke8 0–1. sunnyda – ricardow71, kurnik, 2012.

5.Be2 h6

6.0-0 b6 7.d3 Bb7 8.Nbd2 a6 9.Rc1 d6 10.c4 Nbd7 11.Qb3 Rb8 12.Rfd1 c5 13.a3 Qc7 14.h3 cb4 15.ab4 Ne5 16.Nd4 Qd7 17.N2f3 Nc6 18.b5 ab5 19.cb5 Na5 20.Qb4 e5 21.Nb3 Nd5 22.Qa3 Qb5-/+ 23.Na5 Qa5 24.Qd6 Nb4?? 25.Be5 Bf3? 26.Bg7+/- Kg7 27.Bf3 Na6?? 28.Qd4+– Kh7 29.h4 Nc5 30.Ra1 Qb5 31.Ra7+– Rbd8 32.Qa1 Rd3+/- 33.h5 Rd1 34.Qd1 Ne6 35.hg6 Kg6 36.Be4 f5 37.Bf3 (37.Bf3 Qc5 38.Qd7+–) 1–0. elsh1403 – danflorin1, kurnik, 2011.

6.0-0 d5 7.d3 c6 8.Nbd2 Bg4 9.a3 Re8 10.c4 Nbd7 11.Qc2 Rc8 12.Rac1 e5 13.h3 Bf3 14.Bf3 dc4 15.Nc4 Qe7 16.Rfd1 Nb6? (16...Qe6 17.Na5 Rb8 18.e4+=) 17.Nb6 ab6 18.d4 e4 19.Be2 Nd5 20.Bc4 Rcd8 21.Qb3 f5 22.Bd5 Rd5 23.Rc2 Kh7 24.Rdc1 g5 25.a4 f4? 26.b5+– f3 27.g3?? g4?? 28.h4 Rh5 29.Qc4?? Rh4?? 30.gh4+– Qh4 31.Qf1?? g3?? 32.fg3+– Qg3 33.Kh1 Re6 34.Rh2 Rg6 35.Qh3 Qg5 36.bc6 bc6 37.Qf1 Qe3 38.Re1 Qf4 39.Bc1 Qg4 40.Be3 Qg3 41.Bf2 Qf4 42.Qh3 Qd2? 43.Qf5 e3 44.Be3 Qe1 45.Bg1 Qg1# 0–1. ejdrzej (1655) – kultknjige (1725), kurnik, 2012.

6.0-0 d6 7.a4 e5 8.d4 e4 9.Nfd2 d5 10.c4 c6 11.Qb3 Ne8 12.Nc3 Be6 13.Rae1 f5 14.f3 Nf6 15.fe4 fe4 16.cd5 cd5 17.Nde4 Ne4 18.Ne4 Nc6 19.Nc5 Bc8 20.Bf3 Kh7 21.Bd5 Ne7 22.Be6 b6 23.Bc8 Qc8 24.Ne6 Rf1 25.Rf1 Nf5 26.Ng7 Ng7 27.Rf7 Qe8 28.Kf2 Kh8 29.Qd5 Rd8 30.Qb7 Nf5 31.d5 Kg8 32.Rg7 Kf8 33.Rh7 Qe3 34.Kf1 Qf4 35.Kg1 Qe3 36.Kf1 Qf4 37.Kg1 Qe3 38.Kf1 ½–½. elsh1403 (1610) – solaris8, kurnik, 2012.

6.0-0 d6 7.d3 e5 8.Nbd2 Nc6 9.b5 Ne7 10.c4 Ne8 11.Qc2 f5 12.a4 g5 13.d4 e4 14.Ne1 Ng6 15.g3 c6 16.Ng2 d5 17.Bh5 Kh7 18.Bg6 Kg6 19.h4 Be6 20.cd5 cd5 21.Qd1 Nf6 22.hg5 hg5 23.Qe2 Rh8 24.f4 g4 25.Rac1 Nh5 26.Nh4 Kh6 27.Qg2 Bf6 28.Kf2 Bh4 29.gh4 Qh4 30.Ke2 Ng3 31.Kd1 Nf1 32.Nf1 Rac8 33.Rc5 b6 34.Rc6 Rc6 35.bc6 Rc8 36.Qc2 Qh1 37.Ke1 Qf3 38.c7 g3 39.Qc6 Qf2 40.Kd1 Qf1 41.Kc2 Qc4 42.Qc4 dc4 43.d5 Bd5 0–1. ejdrzej (1605) – solaris8, kurnik, 2012.

6.0-0 d6 7.d4 e6 8.c4 Nc6 9.b5 Ne7 10.a4 Ne8 11.a5 f5 12.Qb3 Kh7 13.Nc3 g5 14.Rad1 Ng6 15.e4 f4 16.Bd3 e5 17.de5 de5 18.Nd5 g4 19.Ne1 h5 20.b6 c6 21.Nb4 a6 22.c5 Qg5 23.Bb1 h4 24.Nec2 Nf6 25.Na3 Nh5 26.Nc4 g3 27.h3 f3 28.Rd2 fg2 29.Rfd1 Bh3 30.Nd6 gf2 31.Rf2 Rf2 32.Kf2 Rf8 33.Nf7 Qf4 34.Kg1 Qf1 35.Kh2 g1Q 0–1. elsh1403 – solaris8, kurnik, 2012.

6.0-0! g5 7.c4 d6 8.d4 c6 9.Qd3 d5 10.Nc3 Bg4 11.c5 Qc7 12.Ne5 Be2 13.Ne2 Ne4 14.f4 f6 15.Ng6 Rf7 16.Ng3 gf4 17.Ne4 de4 18.Qe4 f5 19.Qe6 Kh7 20.Rf4 Rf6 21.Qe7 Qe7 22.Ne7 Nd7 23.Nf5 Rg6 24.Ng7 Rg7 25.Raf1 Rag8 26.Rf7 Rf7 27.Rf7 Rg7 28.Rg7 Kg7 29.d5 Kg6 30.e4 cd5 31.ed5 a6 32.c6 bc6 33.dc6 Nb6 34.Bd4 Na8 35.a4 Kf5 36.b5 ab5 37.ab5 Ke4 38.b6 Kd4 39.b7 Nb6 40.b8Q Kc5 41.c7 h5 42.c8N Nc8 43.Qc8 Kd5 44.Qf5 Kd4 45.Qh5 Kd3 46.g4 Kd2 47.g5 Ke1 48.Qf3 Kd2 49.g6 Kc1 50.g7 Kb2 51.g8Q Ka1 52.h4 Kb1 53.h5 Kc1 54.h6 Kd2 55.h7 Ke1 56.h8Q Kd2 57.Qb2 Ke1 58.Qff2 1–0. iwan19999 (1605) – anitarattan, kurnik, 2012.

5.h4 d6=+

6.Be2 Bg4 7.Nc3 Nbd7 8.0-0 e5 9.Ng5 Be2 10.Qe2 (< 10.Ne2 h6 11.Nf3 e4-/+) 10...c6 11.b5 Rb8 12.Ba3 c5 13.e4 h6 14.Nf3 Re8 15.Bb2 Nf8 16.a4 Ne6 17.d3 Nd4 18.Qd1 d5 19.Re1 de4 20.Ne4 Ne4 21.Re4 f5 22.Re1 Qd5 23.Nd2 Rbd8 24.Rb1 h5 25.Ba1 e4 26.c4 Qf7 27.de4 Bh6 28.Bc3 Bd2 29.Bd2 fe4 30.Qc1 Rf8 31.Be3 b6 32.Rb2 Qf5 (32...Qf5 33.Bg5 Qg4=+) 0–1. Kazimierski,Tomasz – Llorente Gonzalez,Jose (1625), BI–2010–P–00019, 2010.

6.Ng5 h6 7.Nh3 e5 8.c4 Nh7 9.g3 f5 10.Bg2 Nf6 11.Nc3 Nbd7 12.Nd5 c6 13.Nf6 Nf6 14.c5 Re8 15.d4=+ e4 16.Nf4 Kh7 17.cd6 Qd6=+ 18.a3 Nd5 19.Nd5 Qd5 20.Qc2 Be6 21.g4 Rf8 22.g5= h5 23.Ke2 Qc4 24.Qc4= Bc4 25.Kd2 Bd5 26.Rac1 f4 27.Bf1 fe3 28.fe3= Rf2 29.Kc3 b5 30.Rc2= Raf8 31.Bh3?? Rc2?? 32.Kc2= Rf2 33.Kc3 Re2 34.Bc1 Bf8 35.Bd2 Bd6 36.Bf1 Rf2-/+ 37.Rg1 Rh2–+ 38.Be1 Ra2 39.a4?? Ra4 40.Kc2–+ Ra2 41.Kd1?? Bb3 42.Kc1 Ra1 43.Kb2 Re1 44.Kb3 Re3 45.Kc2 Bb4 46.d5 cd5 47.Bb5 a5 48.Rf1 d4 49.Rf7 Kg8 50.Rd7 Rc3 51.Kb2 d3 52.Rd8 Kf7 53.Rd7 Ke6 54.Rd8 Rc7 55.Ba6 d2 56.Re8 Be7 57.Be2 Kf7 58.Ra8 Bb4 59.Ra6 Rc1 60.Rf6 Ke7 61.Rg6 d1Q (62.Bd1 Rd1–+; 61...a4 62.Rc6 Rc6–+) 0–1. Labitte,Alain – Catalan,Vincent, Bethune op–B, 2002.

6.h5 Nh5 7.Bg7 Kg7=+.

4.e3 a5

5.c3 ab4 6.cb4 0-0 7.Be2 b6 8.0-0 Bb7 9.d3 d6 10.Nbd2 c5 11.bc5 bc5 12.Qb3 Bd5 13.Nc4 Ra6 14.Qc2 Bc4 15.Qc4 Rb6 16.Rfb1 Nc6 17.Bf6 Bf6 18.Rb6 Qb6 19.Rc1 Rb8 20.g3 Ne5 21.Qe4 Qb2 22.Bf1 Qc1 0–1. Phomopsis (1710) – chefulia (1695), lichess.org, 2019.

5.b5 0-0

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 a5 6.b5).

6.Be2 c6 7.a4 cb5 8.ab5 b6 9.c4 Bb7 10.d4 d6 11.Nbd2 Nbd7 12.Nb3 Ne4 13.0-0 e6 14.Qc2 Qe7 15.Bd3 d5 16.Be4 de4 17.Nfd2 Rac8 18.Ba3 Qh4 19.Bf8 Bf8 20.g3 Qh3 21.Ne4 f5 22.Ned2 Qg2 0–1. carocan (1735) – ucantouchthis (1655), kurnik, 2012.

5.b5 a4

6.c3 c6 7.c4 cb5 8.cb5 Qb6 9.Nc3 Ne4 10.Na4 Ra4 11.Bg7 Rg8 12.Qa4 Rg7 13.Qe4 h5 14.Qd4 Qd4 15.Nd4 h4 16.Be2 g5 17.g3 h3 18.Bg4 e6 19.Bh3 f5 20.Bg2 1–0. mihai740609 – kanje84, kurnik, 2012.

6.Be2 0-0 7.0-0 c6 8.c4 d5 9.bc6 Nbd7?? (9...Nc6 10.cd5 Qd5 11.Nc3=) 10.a3 (better 10.cd7 Qd7 11.cd5 Qd5+–) 10...b5?? (better 10...bc6 11.Nc3 Ba6+=) 11.Qb3 (better 11.cd7 Bd7 12.cb5+–) 11...Qb6 (better 11...ab3 12.cd7 Bd7 13.cb5–+) 12.Bc1?? (12.Qb5!? Ba6 13.Qb6 Nb6+–) 12...Qa6 (better 12...ab3 13.cd7 Nd7–+) 13.Qd1 (better 13.Qb5 Nb8 14.Nd4 dc4 15.Bc4 Qb5 16.Bb5+–) 13...Nh5? (13...Qc6!? 14.cb5 Qb7+–) 14.Nc3 (14.cb5 Qa7 15.cd7 Ba1 16.dc8N Rfc8+–) 14...Ndf6? (better 14...Qc6 15.cd5 Qc5+–) 15.Ne1 (better 15.cb5 Qb6 16.d4+–) 15...Bd7?? (better 15...bc4 16.Nc2 Qc6=) 16.Qa4 (better 16.cb5 Qa7 17.cd7 Ne4+–) 16...Rfe8 (16...ba4 17.cd5 Qa7 18.cd7 Nd5 19.Nd5 Ba1 20.Ne7 Kg7 21.Nc2 Qd7 22.Ng6 fg6 23.Na1–+) 17.Bb2 (17.Qa6 Ra6 18.cb5 Ra5+–) 17...e6 (better 17...ba4 18.cd5 Qb6 19.cd7 Nd7–+ (19...Qb2?! 20.Ra2 Qb6 21.de8R Ne8 22.Nc2–+)) 18.Nd1 (better 18.Qa6 Ra6 19.cd7 Nd7 20.cb5+–) 18…Red8 (better 18...ba4 19.cd7 Nd7 20.Bh5 Bb2 21.Nb2 gh5 22.cd5 ed5–+) 1–0. Adlai – Festis, internet, 2021.

6.Be2 0-0 7.0-0 c6 8.c4 d5 9.d3 dc4 10.dc4 Qd1 11.Rd1 cb5 12.cb5 Bf5 13.a3 Nbd7 14.Nd4 Bb1 15.Rab1 Rfd8 16.Bc3 Nc5 17.Bb4 b6 (17...Rac8 18.Rbc1 Nfe4 19.b6+=) 18.Rbc1 e5 19.Nc6 Rd1 20.Bd1 (20.Rd1 Nfd7+/-) 20...Nfe4?? (better is 20...Nd3 21.Rc4 Nb2= (worse is 21...Nb4 22.Rb4 Nd5 23.Rc4+=)) 21.Bf3 f5 22.Bc5 bc5?? 23.Ne7 Kf7 24.Be4 fe4 25.Nd5 Bf8 26.b6 Rb8 27.Rb1 Ke6 28.Nc7 Kd6 29.Na6 Rb7 30.Nc7 Kd7 31.Kf1 c4 32.Ke2 Ba3 33.Kd2 Bc5 34.Nd5 Kc6 35.Nc3 Bb6 36.Na4?? Be3!–+ 37.fe3 Rb1 38.Nc3 Rb2 39.Kc1 Rg2 40.Ne4 Kd5 41.Nc3 Kc5 42.Ne4 Kb4 43.Nf6 Kb3 44.Nh7 c3 45.Kd1 Rh2 46.Nf6 Rh1 47.Ke2–+ c2 (47...c2 48.Kf2 c1Q 49.Kf3 Rf1 50.Kg2 Rg1 51.Kf3 Qc2 52.e4 Rg2 53.Nd5 Qe2) 0–1. elsh1403 – wili963 (1655), kurnik, 2011.

5.b5 b6

6.a4 d6 7.Nc3 Bb7 8.d4 Nbd7 9.Bd3 0-0 10.0-0 e5 11.e4 (11.de5 de5 12.e4 Nc5+=) 11...Qe7 (11...ed4 12.Nd4 Re8 13.f3=) 12.Re1 Rae8 (12...ed4 13.Nd4 Rae8 14.Rb1=) 13.Qd2 (13.d5 Nc5+=) 13...Ng4 (13...ed4 14.Nd4 Ng4 15.Nd1=) 14.Nd5+= Qd8 15.h3 Bh6 (15...Ngf6 16.c4+=) 16.Qc3+/- Bd5 17.ed5 ed4 18.Nd4 Nge5 19.Nc6 Qh4 (19...Qg5!?+=) 20.Ne5 Ne5 21.Qc7 Bd2 (21...Bg7 22.Re4 Qd8 23.Qd8 Rd8 24.Re3+/-) 22.Re4+– (22.Be5?! Be1 23.Re1 Re5 24.Re5 de5 25.Qe5 Qa4=) 22...Qf6 23.Bd4 Re7 (23...Qg5 24.Be5 Re5 25.Qd6 (25.Qb6 Re4 26.Be4 Qe5-/+) 25...Re4 26.Be4+–) 24.Qb6 Rfe8 (24...Qg5 25.Be5 Re5 26.Qd6+–) 25.f4! Bf4 (25...Nd3 26.Bf6 (26.cd3 Re4 27.Bf6 Be3 28.Kh2 Bb6 29.de4 Re4+–) 26...Re4 27.Kh1+–) 26.Rf1 (26.Qa5?! Qg5 27.Rf1 Nd3 28.Re7 Qe7 29.cd3 Be3 30.Be3 Qe3 31.Kh2 Qe5 32.Kh1 Qe2+–) 26...g5 (26...Nd3 27.Bf6 (27.cd3 Re4 28.de4 Bh2 29.Kh2 Qf1 30.Qd6 g5+–) 27...Re4 28.Qa5+– (28.cd3?! Be3 29.Kh2 Bb6 30.de4 Re4+–)) 27.g3 Qh6 28.gf4 (28.Ref4?! gf4 29.Be5 Re5+=) 28...Nd3?? (28...Qh3 29.Re2 Nf3 30.Rf3 Qf3 31.Re7 Qg3 32.Kf1 Qf3 33.Bf2 Qh1 34.Ke2 Re7 35.Kd2 Re8+–) 29.Re7 (29.cd3?! Re4 30.de4 Qh3+–) 29...Re7 30.Qd8 Qf8 31.Qf8 (31.Qf8 Kf8 32.cd3 gf4 33.Bf6+–) 1–0. Janek – Usfwjaf, internet, 2019.

5.b5 c5

6.bc6 Nc6 7.d4 d5 8.c4 Bg4 9.Nc3 0-0 10.Be2 (10.Rc1 Rc8=) 10...dc4 11.Bc4 Ne8 12.Be2 Nd6 13.Rc1 Bf3 14.Bf3 e5 15.Bc6 bc6 16.Na4 (16.Ne2 Rb8 17.Ba3 Re8 18.de5 Be5 19.Rc6 Ne4+=) 16...Qg5 (16...ed4!? 17.Bd4 Bd4 18.Qd4 Rb8=) 17.0-0+= (17.Rc6? Qg2 18.Rd6 Qh1 19.Ke2 Qd1 20.Kd1 ed4-+) 17...ed4 18.Bd4 (18.ed4?! Nf5=) 18...Bd4 19.Qd4 Qb5 20.Rc5 Qb4 21.Rc6 Rfd8 (21...Nf5 22.Qc4+/-) 22.Nb6 (22.Nc3 Nf5 23.Qe5 Qe7+/-) 22...Qd4 23.ed4 Rab8 24.d5 Nf5 25.Rd1 (25.g4!? Ne7 26.Rc7 Nd5 27.Nd5 Rd5 28.Rfc1=) 25...Ne7=+ Attacking the isolated pawn on d5 26.Rc7 Rb6 27.Re7 Rd5 28.Ree1 Rd1 29.Rd1 Rb2 30.Ra1 a4 31.a3 h5 32.g3 Kg7 33.Kg2 Kf6 34.h4 Kf5 35.Kf3 f6 36.Kg2 (36.Re1 Rb3 37.Re3 Re3 38.Ke3 Kg4=+) 36...Rb3 37.Ra2 Ke5 (37...g5 38.hg5 fg5 39.Ra1-/+) 38.f3 Kd4 39.g4 (39.f4 Kc3 40.Kh3 f5-+) 39...hg4 (39...Ke3 40.Rc2 Ra3 41.gh5 gh5 42.Rc5-+) 40.fg4-/+ Ke4 (40...Ke5 41.h5 gh5 42.gh5-+) 41.h5 (41.Rf2 Ke5 42.h5 gh5 43.gh5=) 41...gh5-+ 42.gh5 Rb5 (better 42...Kf5-+) 43.h6 Rh5 44.Rb2 Rh6 45.Rb4 Ke3 46.Ra4 f5 47.Rb4 Rg6 48.Kf1 f4 49.Rb3 Ke4 50.a4 Ra6 51.Ra3 Ra5 52.Kf2 Kd5 53.Kf3 Kc4 54.Kf4 Kb4 Attacks the isolani on a4 55.Ra1 Ra4 56.Ra4 Ka4 57.Ke4 ½-½. Droin,Augustin (2290) - Munoz Pantoja,M (2460), XIII Closed IM Barcelona, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 a5)

6.Be2 0-0 7.0-0 d5 8.d4 Nbd7 9.Nbd2 cd4 10.ed4 Nb6 11.a4 Ne8 12.c4 dc4 13.Nc4 Nc4 14.Bc4 Nd6 15.Bb3 Bg4 16.h3 Bf3 17.Qf3 Qb6 18.Rfe1 Nf5 19.Bd5 Rab8 20.Rad1 e6 21.Be4 Nd4 22.Bd4 Bd4 23.Rc1 Rfd8 24.Rc4 Rd7 25.Rec1 Rbd8 26.Rc8 Rc8 27.Rc8 Kg7 28.g4 Be5 29.g5 Rd2 30.Rc2 Rc2 31.Bc2 Qc5 32.Bd1 Qd4 33.Qg4 Qg4 34.Bg4 h5 35.gh6 Kh6 36.Bf3 b6 37.Bc6 Kg5 38.Kg2 f5 39.Bd7 Kf6 40.Kf3 Bd4 41.Bc6 e5 42.Ke2 e4 43.Be8 g5 44.Bd7 Ke5 45.Bc8 f4 46.Bg4?? f3–+ 47.Kf1 Kf4 48.Bc8 Bc5 49.Bd7 Ke5 50.Be8 Kd4 51.Bc6?? Bb4 52.Bb7 Bc3 53.Bc6 Kc4 54.Be4 Kb3 55.Bf3 Ka4 56.Ke2 Kb5 (57.Kd3 Bg7–+) 0–1. Morlock – Vatter, OU, 1998.

5.b5 c6

6.a4 Qb6 7.Be2 0-0= 8.0-0 d5 9.d4 Bf5 (9...cb5 10.ab5 Bg4 11.Nbd2=) 10.c4+= dc4 11.Bc4 cb5 12.ab5 Nc6 (12...Nbd7 13.Nbd2+=) 13.Ba3+/- (worse 13.bc6 Qb2 14.Ra2 Qb6 15.cb7 Qb7=) 13...Nb4 14.Qb3 (14.Bb4!? ab4 15.Ra8 Ra8 16.Qb3+/-) 14...Nc2= 15.Ra2 Na3 (15...a4 16.Qb2 Rfc8 17.Bc5 Rc5 18.dc5 Qc5 19.Bb3=) 16.Na3 (16.Ra3 Ne4=) 16...a4 17.Qb4 Rfe8 18.Ne5 Be4?? (better 18...e6=) 19.Bf7+- Kh8 (19...Kf8 20.Nac4 Qd8 21.Rfa1+-) 20.Be8 Re8 21.Nac4 Qe6 22.Qa4 (22.Ra4 Nd5 23.Qb2 Nf6+-) 22...Ng4 23.h3 (23.Ng4!? Bd5 24.Nge5 Be5+-) 23...Ne5 24.Ne5 Be5 25.de5 Qe5 26.b6 (26.Rd1 Kg8+-) 26...Bc6 27.Qd4 Qd4 28.ed4 Rd8 (28...Kg7 29.Re1+-) 29.Rd2 (29.Re2 Bb5 30.Re7 Bf1 31.Kf1 Rd4+-) 29...e5 (29...Rd6 30.Re1 e6 31.f3+-) 30.Rfd1 (30.d5 Rd5 31.Rd5 Bd5+-) 30...ed4 (30...Rd5 31.de5 Re5 32.Rd7 Bd7 33.Rd7+-) 31.Rd4 Re8 32.Rd8 Rd8 (32...Rg8+-) 33.Rd8 Kg7 34.f3 (better 34.Rc8 Bd5 35.Rc5+-) 34...Kf6 (34...Kh6 35.h4+-) 35.Kf2 (35.Rd6 Ke5 36.Rc6 Kd5+-) 35...h5 (35...Ke7 36.Rh8 h5 37.Rh7 Ke6 38.Ke3+-) 36.Ke3 (36.Rd6 Kf5 37.Rc6 Ke5 38.Rg6 Kd5+-) 36...g5 (36...Ke5 37.Rg8 Kf6 38.Rc8+-) 37.Rh8 (37.Rd6 Ke5 38.Rc6 Kd5+-) 37...h4 (37...Kg6 38.Rg8 Kf6 39.Rf8 Kg6 40.Kd4+-) 38.Kd4 (better 38.Rh6 Ke5 39.Rc6 Kd5+-) 38...Kf5 (38...Bb5+-) 39.Ke3 (39.Rc8!? Bd7 40.Rc7 Ke6+-) 39...Kg6?? (39...Kf6 40.Rh6 Ke5 41.Rc6 Kd5+-) 40.Rf8 Kg7 (40...Bb5 41.f4 gf4 42.Rf4+-) 41.Rd8 (better 41.Rc8 Bb5 42.Rc7 Kf6 43.Rb7+-) 41...Kf6 (41...Kf7 42.Rc8 Bd5 43.Kd4+-) 42.Rd4 (better 42.Rd6 Ke7 43.Rc6+-) 42...Ke5 43.Rd8 Kf5?? (43...Kf6 44.Rd6 Ke7 45.Rc6 Kd7 46.Rc7 Kd6+-) 44.Rg8 (44.Rc8 Bd5 45.Kd4 Be6+-) 44...Kf6 (44...Bb5 45.Rb8 Ba6 46.Rf8 Kg6 47.f4 gf4 48.Kf4+-) 45.Rc8 Bd5 (45...Bb5+-) 46.Kd4 Be6 47.Rc7 g4 (47...Bf5 48.Rb7 Bc8 49.Rc7+-) 48.hg4 Kg5 49.Rb7 Kf4 (49...Bc8 50.Rb8 Ba6 51.Ke5+-) 50.Rh7 (50.Rc7 Kg3+-) 50...Kg3 (50...Bc8+-) 51.b7 Kg2 52.Rh4 Kf3 (52...Bb3 53.b8Q Kf2 54.Qh2 Ke1 55.Qg1 Ke2 56.Qg2 Ke1 57.Rh1) 53.b8Q Bg4 (53...Bg8 54.Rh3 Kg4 55.Rg3 Kh5 56.Rg8 Kh4 57.Qh2) 54.Rg4! Kg4 (54...Kg4 55.Ke4 Combination) 55.Qf8 (55.Qf8 Kg5 56.Ke4 Kg6 57.Ke5 Kh7 58.Qf7 Kh6 59.Qg8 Kh5 60.Kf5 Kh4 61.Qg4; 55.Ke4 Kg5 56.Qd6 Kh4 57.Kf4 Kh5 58.Kf5 Kh4 59.Qh2) 1-0. sezwho (2030) - 147a (2085), Rated Bullet game, lichess.org, 2014.

6.a4 d5 7.bc6 Nc6 8.Bb5 Bd7 9.0-0 0-0 10.d3 Qc7 11.Nbd2 Bg4 12.h3 Bh5 (12...Bf5 13.Bc6 Qc6 14.Nd4=) 13.Bc6 (13.g4 Ng4 14.hg4 Bb2+/-) 13...bc6 14.Be5 Qd7 15.Rb1 g5 16.g4 Ng4 17.hg4 Qg4 18.Bg3 f5 19.Nh2 (19.Kh1 e5 20.Qe1 Qh3 21.Kg1 Bf3 22.Nf3 Qg4+=) 19...Qh3 (better is 19...Qd1!? 20.Rfd1 Bd1 21.Rd1 e5-/+) 20.Ndf3+= Bh6 21.Kh1 f4-/+ 22.Ng1 Bd1 23.Nh3 Bc2 24.ef4 Bb1 25.Rb1 gf4 26.Bh4 e5 27.Ng4 Bg7 28.Ng5 h6?? 29.Ne6-/+ Rf5 30.Rg1+= Rh5?? 31.Nf6+– Kf7 32.Rg7 Ke6 33.Nh5 d4 34.Rg6 Kd5 35.Nf6 Kc5 36.Nd7 Kb4 37.Rc6 Ka4 38.Nb6 Kb5 39.Na8 Kc6 40.Bd8 a4+/- 41.Be7 f3?? 42.Kg1 e4+/- 43.de4?? d3–+ 44.Bb4 a3! 45.Kf1 a2 (45...a2 46.Ke1 a1Q 47.Kd2 Qd4–+) 0–1. Golke,Jakub – Delekta,Anna, VI MITSz Przelazy Poland, 2006.

6.c4 0-0 7.Be2 d6 (7...d5 8.cd5 cb5 9.Bb5 Qd5 10.Nc3=) 8.0-0 Nbd7 (8...a4 9.d4+=) 9.Nc3 Nb6 10.Rc1 (10.a3 c5=) 10...h6 (10...Bg4 11.d3=) 11.bc6 (11.d4 Bf5+=) 11...bc6= 12.Ba3 (12.Rb1 Rb8=) 12...Nfd7 (12...Bg4 13.d3=) 13.d4 Ba6 (13...c5 14.Rb1=) 14.Ne4 f5 15.Ned2 c5 16.d5 (16.Nb3 Qc7=) 16...Qc7 (16...g5 17.e4=) 17.Nh4 (17.Rb1 g5=) 17...Kh7 18.g3 (18.Rc2 Na4=) 18...Ne5 The pressure on c4 grows (18...Rfb8 19.Ng2+=) 19.f4 (19.Ng2 Rfb8=) 19...Ned7 20.g4 (20.e4 fe4 21.Ne4 Bd4 22.Kg2 a4=) 20...Bf6+= 21.Ng2 Kh8 (21...fg4!? 22.Bg4 Rab8=) 22.gf5 gf5 23.Nf3 (23.Bh5 Bc8=) 23...Rg8 24.Qc2 (24.Kh1 Bc8=) 24...Rg7 (24...Rg4 25.Qf5 Rag8 26.Rf2+/-) 25.Qf5 Rag8 26.Rf2 Nf8 27.Qh5 Qd7 28.Bd3 (better is 28.Ng5 Qa4 29.Bc5 (29.Qh6 Nh7 30.Bb2 Bb2+–) 29...dc5 30.Qh6 Nh7 31.Bd3+/-) 28...Qg4 (28...Qa4 29.Qh6 Nh7 30.Bc5 dc5+/-) 29.Qh6+/- Nh7 30.Ng5 Bg5 31.fg5 Qg5 32.Qg5 Rg5 (32...Ng5 33.Rf5 Na4 34.Kh1+/-) 33.Bb2 Nf6 34.e4 Nbd7 35.Re1 (35.h4 Rg3 36.Rd2 Rh3+/-) 35...Ne5 36.Be5 Re5 37.Re3 Rg7 (37...Bc8 38.Rf4+/-) 38.h3 (38.Kf1 Bc8+/-) 38...Reg5 ½–½. Terry,Renato (2445) – Arias,Mario (2155), Lima PER, Gran Prix IRT, 2013. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 a5 5.b5 c6)

6.c4 d5 7.a4 0-0 8.d4 Bg4 9.Nbd2 Nbd7 10.Qb3 Be6 11.Bd3 cb5 12.Qb5 dc4 13.Nc4 Bc4 14.Bc4 e5? (better is 14...Ra6 15.Bc3 Ra7+/-) 15.de5+– (15.Qb7? Rb8 16.Qa7 Rb2–+) 15...Ng4 (15...Ne4 16.Rd1 Nec5+–) 16.Rd1 Nge5 (16...Qb6 17.Rd7 Qb5 18.Bb5 Rfc8+–) 17.Ne5 (17.Ne5 Qg5 18.Rd7 Be5 19.Qe5 Qe5 20.Be5+–) 1–0. Janek – Damian, internet, 2016.

5.b5 d6

6.d4 0-0 7.Nbd2 Nbd7 8.Be2 Re8 9.0-0 e5 10.h3 e4 11.Nh2 Nf8 12.c4 Bf5 13.Qc2 h5 14.Kh1 g5 15.g4 hg4 16.hg4 Bh7 17.a4 Ng6 18.Rg1 Nh4 19.Bc3 Bg6 20.c5 d5 21.Qb3 Kh7 22.b6 c6 23.Qd1 Nd7 24.Nb3 Rh8 25.Qe1 Kg8 26.Ba5 f5 27.Rg3 f4 28.Rh3 Qf6 29.Bb4 Kf7 30.Nd2 Ke7 31.a5 Rh7 32.Qf1 Rah8 33.a6 ba6 34.Ra6?? Rh6?? 35.Ba5?? Bf7?? 36.Qg1= Bg6 37.b7 Nf3 38.Rh6 Ng1 39.Rh8 Bh8 40.Kg1 f3? 41.Bb5!! Qf8 42.Rc6 Bd4 43.ed4 Qf4 44.Rg6 e3 45.Ndf3 ef2 46.Kf2 Nf6 47.Rf6! Kf6 48.c6 Qb8 49.Ne5 Ke6 50.Nhf3 Qa7 51.Ng5 Kf6 52.Bd8 Kg7 53.Ne6 Kg8 54.Bd3 Kh8 55.Bf6 Kg8 56.Bg6 Qa2+– 57.Kg3 Qf2= ½–½. Hermann,Matthias – Byl,Thomas, Regionalliga NordN, 1989.

6.Be2 e5 7.d4 e4 8.Nfd2 0-0 9.c4 Re8 10.g4 (10.Nc3 c5+=) 10...c5 11.dc5 Ng4 12.Bg7 (12.Bg4? Bb2 13.Bc8 Qc8 (13...Ba1?! 14.Bb7 Ra7 15.c6=) 14.Ne4 Re4-+ (14...Ba1?! 15.Nd6 Qe6 16.Ne8 Qe8 17.Qd5-+)) 12...Nf2 (12...Ne3 13.Qc1 (13.fe3? Qh4 14.Kf1 Bh3 15.Kg1 Kg7-+) 13...Ng2 14.Kf1=) 13.Kf2= Qh4 14.Kg1 Qg5 15.Kf2 Kg7 16.Na3 Qh4 17.Kg1 Re5 18.Nf1 (18.cd6?? Rg5 19.Bg4 Bg4 20.Ne4 Bd1 21.Ng3 Rg3 22.hg3 Qg3 23.Kf1 Qf3 24.Kg1 Qe3 25.Kh2 Qe5 26.Kg2 Qa1-+) 18...Rg5 19.Ng3 Rg3 20.hg3 Qg3 21.Kf1 Bh3 22.Rh3 Qh3 23.Ke1 (23.Kf2 Qh4 24.Kg2 Qg5 25.Kf2 dc5= (worse 25...Qc5 26.Qd5+/-)) 23...Qe3=+ 24.Nc2 Qg1 25.Kd2 Qc5 26.Kc3 (26.Qh1!? d5 27.cd5 Qd5 28.Ke1=) 26...Nd7-/+ 27.Qd4 (27.Qd2 Nb6-/+) 27...Qd4-+ 28.Kd4 f5 29.Kd5 Nf6 30.Kd6 Rd8 31.Kc7 (31.Ke5 Nd7 32.Kd4 h5-/+) 31...Rd7 (31...Rd2 32.Bd1 Rd7 33.Kb6-+) 32.Kb6-/+ Rd2 33.Bd1 f4 (better 33...Ng4 34.Bg4 Rc2=+ (worse 34...fg4 35.Ne3+/-)) 34.Kb7= e3 35.Ne1 e2 36.Be2 Re2 37.c5 g5 38.c6 Re7? (better 38...Nd5!?+=) 39.c7+- Ne8 (39...Nd5!? 40.b6 h5+-) 40.b6 g4 41.Kc6 Re6 42.Kd5 Nc7 43.bc7 Re8 44.Rc1 f3 45.Nf3! 1-0. Danada,T (2260) - Tropp,L (2120), TCh-SVK, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 a5)

4.e3 a6

5.c4 0-0 6.a4 d5 7.b5 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0-0 cb5 12.Bb5 Qb6 13.Bc4 Bf5 14.Nd4 Qb1 15.Qb1 Bb1 16.Rb1 Ne4 17.d3 Nd2 18.Rb7 Nc4 19.dc4 Nc6 20.Nc6 Ba1 21.Ne7 Kg7 22.c5 Bf6 23.Nd5 Rc8 24.Nf6 Kf6 25.Rb5 Rc6 26.g4 Ke5 27.f4 Kd5 28.Rb7 Ke6 29.Rb5 Kd5 30.Kf2 Rc5 31.e4 Kc6 32.Rc5 Kc5 33.Ke3 Kc4 34.h4 h6 35.h5 g5 36.fg5 1–0. Abdullaevich (1920) – nalim1 (1930), lichess.org, 2020.

5.Be2 0-0=.

5.c4 d6

6.d4 Bg4 7.Nbd2 Nc6 8.Be2 0-0 9.d5 Ne5 (9...Nb8!?+=) 10.Ne5+/- de5?? (better 10...Be2 11.Nf7 Rf7 12.Qe2 c6+/-) 11.Bg4+- Ng4 12.Qg4 h5 (12...Qd6 13.Qg3+-) 13.Qe2 Qd6 14.a3 f5 15.e4 f4 (15...e6 16.Rd1+-) 16.c5 Qf6 (16...Qd7 17.Nc4+-) 17.Nf3 g5 (17...e6 18.d6+-) 18.Be5 Qg6 19.Bg7 Kg7 (19...Qg7 20.Rd1+-) 20.Nd4 g4 (20...Rfc8 21.Ne6 Kf7 22.g3+-) 21.Ne6 Kg8 22.f3 Rf7 23.Nc7 Rc8 24.Ne6 g3 (24...Qf6 25.e5 Qh4 26.Kd1 gf3 27.gf3+-) 25.hg3 Qg3 (25...fg3 26.c6! bc6 27.Qa6+-) 26.Kf1 1-0. Adlai – Zemic, internet, 2021.

6.Be2 0-0 7.0-0 Bg4 (7...c5 8.bc5 dc5 9.d4=) 8.Qc2 (8.d4 Nc6+=) 8...e5 (8...Nc6 9.Bc3=) 9.e4 (9.d4 Nc6 10.a3 e4=) 9...Nbd7 (9...Nc6 10.a3=) 10.a4 (10.d4 a5 11.de5 Ne5 12.Ne5 de5+=) 10...Qe7 (10...a5 11.b5=) 11.Nc3 c6 (11...a5 12.b5=) 12.Rfd1 (12.h3 Be6=) 12...Ne8 (12...d5 13.ed5 cd5 14.Nd5 Nd5 15.cd5=) 13.a5+= f5 14.ef5 (14.Qd3 Nef6+=) 14...Bf5= 15.d3 g5 16.h3 g4 17.hg4 Bg4 18.Nh2 (18.d4 Qf7=) 18...Bf5 19.Bf3 (19.Bg4 Bg4 20.Ng4 Qh4=) 19...Bh6 (19...Nef6 20.Ne4=) 20.b5 (20.Be4 Ng7=) 20...Rc8 21.bc6 (21.Ng4 Bg7=) 21...bc6 22.Ne4 Be4 23.de4= Rf7 24.Bh5 Rg7= 25.Bc1 Bf4 26.Bf4= ef4 27.Bf3 Ne5 28.Qe2 c5 29.Ng4 Rg6 30.Rab1 Rc6 31.Kf1?? Nc7 32.Rb8 Kg7 33.Ne5 de5 34.Rdd8 Rcd6 35.Rg8 Kh6 36.Rg6 hg6 37.Qb2 Qd7? 38.Kg1 Qe7 39.Rb6 Na8 40.Rb7 Rd7?? 41.Rd7+/- Qd7 42.Qe5 Qc7 43.Qh8 Kg5 44.Qa8 Qa5 45.Qd5 Kh6 46.Kh2 Qc7 47.e5 Kg7 48.e6 Kf8 49.Qg5 Qe7 50.Qh6 Kg8 51.Qg6 Qg7 52.Qe8 Qf8 53.Qc6 Qg7 54.Qa8 Qf8 55.Qa6 Qe7 56.Bd5 Qh7= ½–½. Reyes,Victor – Villuaneva E,Susana (1750), Merida VII Carlos Torre–mem, 1994.

5.Be2 b5

6.a3 Bb7 7.c4 d6 (better is 7...bc4!? 8.Bc4 a5=) 8.cb5+/- ab5 9.Bb5 c6 10.Be2 0-0 11.d4 Nbd7 12.0-0 Qc7 13.Nbd2 c5 14.dc5 dc5 15.Qc2 Rfc8 16.Rfc1 Qd6 17.Nc4 Qb8 18.b5 Nb6?? (better is 18...Be4 19.Qb3 Qb7+/-) 19.Nb6+– Ng4 20.h3 Bb2 21.Qb2 Nf6 22.Na8 Qa8 1–0. mihai740609 – cptgrant, kurnik, 2011.

6.c4 Bb7 7.cb5+/- ab5 8.Bb5 c6 9.Be2 0-0 10.0-0 d6 11.Nc3 e5 12.a3 d5? (better is 12...c5+/-) 13.Ne5+– Nfd7 14.Nf3 Ne5 15.Ne5 Be5 16.d4 Bc7 17.Rc1 Nd7 18.Qc2 Nf6 19.Bf3 Qd6 20.g3 h5 21.Bg2 Bc8 22.Rfe1 h4 23.e4 hg3 24.e5 gh2 25.Kh1 Qe6?? 26.ef6 Qf6 27.Re3 Bf4 28.Rf3 Qd4?? 29.Ne2+– Qe4 30.Rf4 Qc2 31.Rc2 Bf5 32.Rc6 Rfe8 33.Nd4 Re1 34.Kh2 Kg7 35.Nf3 f6 36.Ne1 Rh8 37.Kg1 Be4 38.Be4 Kh6 39.Bd5 Kg5 (39...Kg5 40.Bf6 Kf4 41.Ng2 Kf5 42.Ne3 Kf4 43.Rc4#; 39...Kh5 40.Bf3 Kg5 41.Rg4 Kh6 42.Rh4 Kg7 43.Rc7 Kg8 44.Bd5 Kf8 45.Rh8#) 0–1. lican – andlau4, kurnik, 2012.

6.c4 bc4!? 7.Bc4 d5=.

4.e3 b6

5.b5 Bb7 6.c4 d5 7.a4 dc4 8.Bc4 0-0 9.0-0 Nd5 10.Bg7 Kg7 11.d3 Rh8 12.Qb3 e6 13.Nc3 Nf6 14.e4 Nh5 15.Ng5 Qg5 16.Ne2 Nd7 17.Nd4 Nf4 18.g3 Nf6 19.Kh1 Nh3 20.Be6 Ne4 21.Nc6 Nef2 22.Kg2 Rhf8 23.Bh3 Nh3 24.Kh3 Qd2 25.Rad1 Bc8 26.g4 Qe2 27.Ne5 Qe5 0–1. Abdullaevich (1820) – asoevs958 (1830), lichess.org, 2019.

5.Bb5 a5 6.a3 (6.ba5 Ra5 7.a4 0-0+=) 6...0-0 7.0-0 Nc6 8.ba5 Ra5 9.a4 Bb7 10.Bc3 Ra8 11.d4 Ne4 12.Bb2 e6 13.Nbd2 Nd6 14.e4 (14.Nc4+=) 14...g5 (better is 14...Qe7!?-/+) 15.e5= Nb5 16.ab5 Ra1 17.Ba1 (17.Qa1!? Nb4 18.h3=) 17...Nb4+= 18.c3 Nd3 19.Qe2 (19.Qc2!? Nf4 20.Ne4-/+) 19...Nf4-/+ 20.Qe3 f6 21.Nc4?? Bh6–+ 22.ef6 g4 23.Nfe5 Nh3!! 24.gh3 Be3 25.Ne3 d6 26.Nc6 Qf6 27.Ng4 Qf3 28.Ne7 Kf7 29.Nc6 Rg8 30.Bb2 h5 (30...h5 31.Bc1 h4–+) 0–1. Neumann,Frank (1650) – DA (1880), RSX16D, 2007.

5.Qc1 Bb7 6.Be2 d6 7.c4 Nbd7 8.0-0 0-0 9.d4 Ne4 10.Nbd2 Nd2 11.Qd2 e6 12.Rac1 Qe7 13.a3 Rad8 14.Qc2 Rfe8 15.Rfd1 f5 16.c5 Be4 17.Bd3 Nf6 18.Be4 Ne4 19.c6 h6 20.Nd2 Nd2 21.Qd2 Kh7 22.Qd3 Qf8 23.Qa6 Qe7 24.Rc2 Rf8 25.b5 f4 26.e4 f3 27.g3 e5 28.de5 Be5 29.Be5 de5 30.Rd8 Rd8 31.Rc1 Qc5 32.Rf1 Qc4 33.Ra1 Qc2 34.h4 Rd1 35.Rd1 Qd1 36.Kh2 Qf1 37.Qa7 Qg2 0–1. Adamkosh (1935) – gmtodor_off (2285), lichess.org, 2019.

5.Be2 c5 6.b5 Bb7 7.0-0 0-0 8.d3 d6 9.Nbd2 Nbd7 10.c4 e5 11.a4 Re8 12.a5 a6 13.Bc3 (better 13.ab6!? ab5 14.cb5 Ra1 15.Qa1 Nb6 16.Nc4=) 13...ab5-/+ 14.cb5 Nd5 15.Bb2 Ra5 16.Ra5 ba5 17.Nc4 Qc7 18.Nfd2 Ra8 19.Ne4 Bf8 20.f4 ef4 21.ef4 N5b6 22.Ne3 White prepares f5 (22.Qc2!? d5 23.Nb6 Qb6 24.Qc3-/+) 22...d5-+ 23.Ng5 d4 24.Qb3 Nf6 25.f5 (25.Nc4 a4 26.Qa3 h6-+) 25...Nbd5?? (better 25...Qe7 26.Nd1 Bg2 27.fg6 Bf1 (27...Qe2 28.Qf7 Kh8 29.Rf6 Qd1 30.Kg2+/-; worse 27...hg6 28.Rf2 Bd5 29.Qc2-+) 28.Qf7 Qf7 29.gf7 Kg7 30.Kf1 h6 31.Ne6 Kf7 32.Nf8 Rf8-+) 26.fg6-/+ hg6 (26...Ne3?! A) worse 27.Rf6 Bd5 (27...Bg2 28.gh7 Kh8 29.Nf7 Kh7 30.Qe6+-; 27...hg6?! 28.Rf7 Bd5 29.Rc7 Bb3 30.Rc6+=) 28.gf7 Kg7 29.Ne6 Kf6 30.Nc7 Bb3 31.Na8 Bf7-/+; B) 27.gh7 Kh8 B1) worse 28.Rf6 B11) 28...Bg2 29.Nf7 (29.Rf7?! Bd5 30.Rc7 Bb3+-; 29.Qf7?! Qf7 30.Nf7 Kh7 31.Ng5 Kh8+/-) 29...Kh7 30.Qe6+-; B12) 28...Bd5 29.Rf7 Qd8 (29...Bb3? 30.Rc7 Nd5 31.Rb7+-; 29...Bf7?! 30.Nf7 Kh7 31.Ng5 Kh8 32.Qe6+=) 30.Rf8 Qf8-+; B2) 28.Qf7 Qf7 29.Nf7 Kh7 30.Rf6=; 26...de3?? 27.gf7 Qf7 28.Nf7 Kf7 29.Rf6 Ke7 30.Rf5+-; 26...fg6? 27.Rf6 Qe5 28.Ne4+-) 27.Nc4 Bg7 (27...Bh6 28.Bc1 Nc3 29.Bd1-/+) 28.Bc1 (28.Bf3 Qe7-/+) 28...Nc3 29.Bf3 Bf3 30.Nf3 Ne2 31.Kh1 Nc1 32.Rc1 a4 33.Qa2 (33.Qa3 Nd5-/+) 33...Nd5 34.Re1 Nb4 35.Qe2 a3 36.Qe4 (36.Ra1!? a2 37.b6-/+) 36...Qd8-+ 37.Nfd2? (37.Ra1 a2 38.b6 Qe8 39.Qe8 Re8-+) 37...Qd5 (better 37...Nc2!? 38.Rf1 a2 39.Nb3-+) 38.Qd5 Nd5 39.b6 a2 40.Nb3?? (40.Ra1-+) 40...Rb8 (better 40...Nb6 41.Nb6 Rb8 42.Kg1-+) 41.Ra1 Nb6 42.Nca5? (42.Ncd2-+) 42...c4! 43.Nc1 (43.Nc4 Nc4 Combination; 43.dc4 Nc4) 43...Ra8 (43...cd3!? 44.Ra2 Nc4 45.Nab3-+) 44.Nc4 Nc4 0-1. Maetzkow,Maximilian Paul (2240) - Musiolik,David (2195), German Youth Teams, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6)

5.c4 Bb7

6.Na3 d6 7.Be2 Nc6 8.b5 Nb4 9.Nc2 Nc2 10.Qc2 0-0 11.0-0 Ne4 12.Bd3 Bb2 13.Qb2 Nf6 14.a4 Bf3 15.gf3 Qd7 16.Kh1 Qh3 17.Rg1 Qf3 18.Rg2 Ng4 19.Qc2 Nf2 20.Kg1 Nh3 21.Kh1 f5 22.c5 Nf2 23.Kg1 Nh3 24.Kh1 f4 25.Bc4 Kg7 26.Qc3 Rf6 27.Be2 Nf2 28.Kg1 Nh3 29.Kh1 Nf2 30.Kg1 Nh3 31.Kh1 Nf2 ½–½. Nautiluschess – AlQote, ICS blitz, 2001.

6.d3 a6 7.Be2 Nc6 8.a3 0-0 9.0-0 Nb8 10.d4 Re8 11.Nbd2 d5 12.cd5 Nd5 13.Rc1 e6 14.Bc4 Nd7 15.Nb3 h6 16.e4 N5f6 17.Re1 Be4 18.Ne5 Bb7 19.Nd7 Qd7 20.Qe2 Nd5 21.Rcd1? Nf4–+ 22.Qe3? Ng2 23.Re2 Ne3 (24.fe3 Qc6–+) 0–1. Jockel – bambinik, internet, 2002.

6.d4 d6 7.Be2 Nbd7 8.0-0 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6 8.d4 Nbd7).

6.Be2 0-0 7.Nc3 a6 8.0-0 a5 9.b5 c5 10.d4 cd4 11.ed4 d5 12.Ne5 dc4 13.Bc4 e6 14.Ba3 Re8 15.Rc1 Nbd7 16.Nc6 Qc7 17.d5 Nc5 18.d6 Qd7 19.Bc5 bc5 20.Ne5 Qd8 21.Nc6 Qd7 22.Ne5 Qd8+/- 23.Nc6 Qd7= ½–½. Crafty 19.01 – Fritz 6, 2004.

6.Be2 a6 7.0-0 h6 8.d4 d6 9.a3 Nc6 10.Nc3 Qd7 11.Rc1 g5 12.d5 Ne5 13.Ne5 de5 14.Qb3 0-0-0 15.Rfd1 h5 (15...Kb8 16.c5 Qf5 17.b5+–) 16.Na4 (better is 16.c5!? bc5 17.bc5 c6+–) 16...g4 (16...Qf5!?+/-) 17.Be5+– Ne8 (better is 17...Qf5 18.Bf6 Bf6+–) 18.Bg7 Ng7 19.c5 b5 (19...Bd5 20.Ba6 Kb8 21.Qc2+–) 20.Nc3 (20.c6 Qf5 21.cb7 Kb7 22.Nc5 Ka7 23.Na6 Rc8+–) 20...Qf5 21.c6 Ba8 22.e4 Qf4 23.f3 gf3 24.Bf3 h4 25.Ne2 Qe5 26.a4 Nh5 27.ab5 ab5 28.Qd3 Rd6 29.Qb5 Nf4 30.Qa6 Kb8 31.Nf4 Qf4 32.Ra1 Qe3 33.Kh1 Bc6+– 34.dc6 Rd1 35.Rd1 Qb6 36.Qb6 cb6 37.Rd7 Rf8 38.h3 e6 39.Rb7 Ka8 40.c7 Kb7–+ 41.e5 Kc7 42.Kg1 Rd8 43.Kf2 Rd4 44.b5 Rb4 45.Bc6 Rc4 46.Ke3 Rc2 47.Kf4 Rg2?? 48.Bg2+– Kd7 49.Kg5 Kc7 50.Kf6 Kd7 51.Kf7 (51.Kf7 Kd8 52.Ke6 Kc8 53.Kd6 Kd8 54.Bc6 Kc8 55.e6 Kb8 56.Be4 Kc8 57.e7 Kb8 58.e8Q Ka7 59.Qa8#) 1–0. vihavald (1620) – remek88, kurnik, 2012.

6.Be2 Nc6 7.a3 d6 8.0-0 Qd7 9.d4 0-0 10.d5 Nd8 11.Nbd2 c6 12.e4 cd5 13.ed5 e6 14.de6 Ne6 15.Rc1 Ne4 16.Bg7 Ng7 17.Ne4 Be4 18.Nd2 Bb7 19.Bf3 Rfd8 20.Bb7 Qb7 21.Nf3 Nf5 22.Qd3 d5 23.cd5 Rd5 24.Qc3 Rdd8 25.Qf6 Rd6 26.Qe5 Qd7 27.Rfe1 Rd5 28.Qc3 b5 29.h3 a6 30.Qc6 Qc6 31.Rc6 Rd6 32.Rd6 Nd6 33.Rd1 Nc4 34.Rd3 Re8 35.Nd2 Nb2 36.Rd6 Ra8 37.g4 Na4 38.Nb3 Nc3 39.Nc5 a5 40.Ra6 Ra6 41.Na6 ab4 42.ab4 Kg7 43.Nc7 Kf6 44.Nb5 Nb5 45.f4 Ke6 46.Kf2 Kd5 47.Ke3 Kc4 48.Ke4 Kb4 49.Ke5 Kc5 50.h4 Nc7 51.Kf6 Kd6 52.Kf7 Ne6 53.f5 gf5 54.gf5 Nf4 55.Kg7 Ke5 56.f6 Nh5 57.Kh7 Kf6 58.Kh6 Nf4 59.Kh7 Kf5 60.Kh6 Kg4 61.h5 Nh5 ½–½. bananinha – antonio009, kurnik, 2012.

6.Be2 Nc6 7.a3 d6 8.0-0 Ne5 9.d4 Ned7 10.d5 0-0 11.Nbd2 a6 12.Qc2 b5 13.cb5 Nd5 14.Bg7 Kg7 15.ba6 Ba6 16.Ba6 Ra6 17.Nc4 Qb8 18.Na5 c5 19.e4 N5f6 20.Qc3 Kg8 21.Rfe1 Rc8 22.bc5 Rc5 23.Qb3 Rca5 24.Qb8 Nb8 25.Nd4 Ra3 26.Ra3 Ra3 27.Rb1 Nbd7 28.Nc6 Kf8 29.f3 e6 30.Rb7 Rc3 31.Nb8 Nb8 32.Rb8 Kg7 33.Rb7 Nh5 34.Rd7 Nf4 35.Rd6 Rc1 36.Kf2 Rc2 37.Kg3 Ng2 38.Rd3 Ne1 39.Rb3 Rg2 40.Kh3 h5 41.Re3 Rg1 0–1. bananinha – kanje84, kurnik, 2012.

6.Be2 d6 7.0-0 Nc6 8.b5 Na5 9.Nc3 0-0 10.Qc2 d5 (10...c5!?+=) 11.cd5 Nd5 12.Nd5 Bb2 13.Ne7! Qe7 14.Qb2 Bf3 (14...a6 15.a4+/-) 15.Bf3+– (15.gf3?! c5+/-) 15...Nc4 (better is 15...Rac8+–) 16.Qc3 Nd6 17.Ba8 Ra8 18.Qc6 Rd8 19.d4 Qg5 20.Rab1 Qf5 21.Qc7 Rd7 22.Qc6 Ne4 23.f3 Nd2 24.e4 Qe6 25.Qc8 Kg7 26.d5 Qd6 (26...Rd5 27.Qe6 fe6 28.ed5 ed5 29.Rbd1 Nf1 30.Kf1+–) 27.Qc3 (27.Qc3 Kg8 28.Qd2+–) 1–0. pierre – extreme, internet, 2011.

6.Be2 d6 7.0-0 e5 8.Nc3 Nbd7 9.Rc1 Rb8 10.a3 0-0 11.Qb3 c5 12.b5 Ne4 13.d3 Nc3 14.Bc3 Nf6 15.e4 Qd7 16.h3 Nh5 17.Ne5?? (better is 17.Rce1=) 17...de5–+ 18.Bh5 gh5 19.Qd1 (19.Rcd1 f5–+) 19...Qe6 (19...Rbd8!? 20.Qh5 Qd3 21.Rfe1–+) 20.Qh5 Rbd8 21.Rcd1 Qg6 22.Qe2 Bh6 23.Be5-/+ Qe6 24.f4= f6 25.Bc7 Rd7 26.f5 Qe7 27.Bf4 Bf4 28.Rf4 Qe5 29.Rh4 Qg3?? 30.Qh5 Rff7?? 31.Rg4+– Rg7 32.Rg3 Rg3 33.Qe8 Kg7 34.Qd7 Kh6 35.Qb7 Re3 36.Qa7 (36.Qa7 Re2 37.Qf7 Kg5 38.g3 Re4 39.Qg7 Kf5 40.Rf1 Rf4 41.Rf4 Ke6 42.Re4 Kf5 43.g4#) 1–0. lican – folor, kurnik, 2012.

6.Be2 d6 7.d4 Nbd7 8.0-0 0-0 (---> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6 8.d4 Nbd7).

6.Be2 e6 7.0-0 Nc6 8.b5 Ne7 9.a4 0-0 10.h3 d5 11.Nh2 (11.d4 dc4 12.Bc4 c5=) 11...dc4+= 12.Bc4 Ned5 13.Be2 a6 14.Nc3 Nb4 15.Ba3 a5 16.Bb4 (better is 16.d4!?=) 16...ab4+= 17.Na2 Qd5 (better is 17...b3!? 18.Qb3 Ne4-/+) 18.Bf3= Ne4 19.Nb4 Qc4 (19...Qd6 20.Rb1 Ra7 21.Be4 Be4 22.d3+=) 20.Rb1+= f5?? (better is 20...Rfd8 21.d3 Qc5+/-) 21.d3+– Nc3 22.dc4 Nd1 23.Bb7 Rab8 24.Rfd1 Rb7 25.Rd7 Rc8 26.Nf3 Kf8 27.Rbd1 Ra7 28.Ng5 Bh6 29.Ne6 Ke8 30.Nc6 Bf8 31.Rd8 Rd8 32.Rd8 Kf7 33.Nf8 Rb7 34.Nh7 Kg7 35.Ng5 Kf6 36.h4 f4 37.ef4 Kf5 38.Rf8 Kg4 39.Nd8 Rb8 40.f3 Kh4 41.Nde6 Kh5 42.Kh2 Kh6 43.Rb8 (43.Rb8 c6 44.Rh8#) 1–0. alfons78 – tentaki, kurnik, 2012.

5.c4 c5

6.b5 d6 7.Be2 Nbd7 8.0-0 0-0 9.d3 Bb7 10.Nc3 e6 11.a4 d5 12.Qc2 Qc7 13.h3 Rfd8 14.Ra3 Rac8 15.a5 Nf8 16.a6 Ba8 17.Nb1 N8d7 18.Nbd2 Qd6 19.Rd1 Qe7 20.Raa1 Ne8 21.Bg7 Ng7 22.Rac1 Nf5 23.Qc3 Nf6 24.Qe5 Nd7 25.Qa1 Nf6 26.Qe5 Nd7 27.Qa1 ½–½. Kaenel,Hansjuerg – Zueger,B, it, 1989. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6 5.c4 c5)

6.bc5 bc5 7.Nc3 Qb6 (7...0-0 8.Rb1=) 8.Qb3 (8.Nd5 Qb2 9.Rb1 Qa2 10.Nc7 Kd8 11.Na8 Nc6+=) 8...Qc7 (8...0-0 9.d4=) 9.Qb5 (9.Nd5 Qd8+–) 9...Nc6 (better 9...Bb7!?=) 10.Qc5+– 0-0 11.Rb1 Rb8 12.Ba1?? (better 12.Nb5!? d6 13.Nc7 dc5 14.Bd3+=) 12...Rb1?? (better 12...Ne4! 13.Qa3 Rb1 14.Nb1 Ba1–+) 13.Nb1=+ d6 (13...Ne4 14.Qd5 Nd2 15.Bg7 Nf3 16.Qf3 Kg7 17.Qd5=+) 14.Qb5 (14.Qa3 Bg4+=) 14...a6 (14...Bd7 15.Qb3=) 15.Qb3 (15.Qa4 Bd7=) 15...Be6 (15...Bf5 16.Nc3=) 16.Bf6 (16.Nc3!?=) 16...Bf6 17.Nc3 (17.Qd1 Rb8=+) 17...Na5 (17...Rb8 18.Qd1=+) 18.Qc2= Nc4 19.Bc4 (19.Ne4 Rb8 20.Nf6 ef6-/+) 19...Bc4 (19...Qc4!? 20.a3 Bc3 21.dc3 Rc8–+) 20.Nd5=+ Qc5 (20...Qb7 21.Nf6 ef6 22.d3=+) 21.Nf6 ef6 22.d4 (22.d3 Ba2 23.Qb2 f5=+) 22...Qa5 23.Qd2 (23.Nd2 Rc8=+) 23...Qb5 (23...Qa3 24.Qd1-/+) 24.Qc2 Rc8 25.Nd2 (25.a3-/+) 25...d5 (better 25...Be6 26.Qd1 Ba2-/+) 26.Nc4?? (better 26.a3=+) 26...Rc4–+ (26...dc4?! 27.0-0=; worse 26...Qc4 27.Qc4 Rc4 28.Kd2+=) 27.Qd2?? (27.Qd1 Rc3 28.f4 Re3 29.Kf2–+) 27...Qb1 28.Qd1 Rc1 (28...Qa2?! 29.0-0-/+) 29.0-0 (29.Ke2 Qa2 30.Kf3 Rd1 31.Rd1–+) 29...Rd1 30.Rd1 (30.g4 Rf1 31.Kg2 Rg1 32.Kh3 g5 33.e4 Qf1) 30…Qd1 0–1. sirgeshdb (1685) – vladsuar (1915), lichess.org, 2020.

6.a3 0-0

7.Nc3 Nc6 8.Qa4 Bb7 9.Be2 d6 10.0-0 e5 11.d3 Re8 12.Rad1 a6 13.Qb3 Qc7 14.Nd2 Ne7 15.Bf3 Bf3 16.Nf3 h6 17.Nd2 Nd7 18.Rfe1 Nf8 19.Rb1 Reb8 20.a4 (20.b5 Ne6+=) 20...Ne6 21.Nd5 Qd8 22.Ne7 Qe7 23.Ne4 cb4 24.Qb4 Nc5 25.Red1 Ne4 26.de4 Bf8 27.Ba3 Qh4 28.a5 (28.Qb3 Qe4 29.Bd6 Rc8 30.Qb6 Bd6 31.Qd6 Rc4=) 28...b5 (28...d5!? 29.Qb2 Ba3 30.Qa3 dc4 31.ab6 Qe4=) 29.cb5= Rb5 30.Qa4 Rab8 31.Rb5 Rb5 32.g3 (32.Bd6 Rb2 33.g3 Qf6–+) 32...Qg4 33.Rd2 (worse is 33.Bd6 Ra5 34.Qc2 Ra2-/+) 33...Qf3 34.Rb2 Rb2 35.Bb2 Qe2 36.Ba3 Qd3 37.Kg2 h5 38.h3 Kg7 39.Qb4 Be7 40.Bb2 Bd8 41.Bc3 h4 42.g4 Bg5 43.Be1 d5 44.Bc3 Qe4 45.Qe4 de4 46.Be5 Kf8 47.f3 f5 48.gf5 gf5 49.Kf2 Bd8 50.Bc3 Ke7 51.Ke2 Kd6 52.fe4 fe4 53.Kd2 Kc5 54.Kc2 Kc4 55.Be1 Be7 56.Bc3 Bd8 57.Be1 Bf6 58.Bd2 Bg5 59.Be1 Be3 60.Bh4 Bf4 61.Bd8 e3 62.Bb6 e2 63.Bf2 Be3 64.Be1 Kd4 65.h4 Bh6 66.h5 Bf4 67.Bh4 Ke3 68.Be1 Kf3 69.Kd3 Bg5 70.Kd4 Kg2 71.Kd5 Kf1 72.Bb4 Be7! 73.Bd2 Bg5 74.Bb4 Be7 75.Bd2 Bh4 76.Kc6 Be1 77.Be1 Ke1 78.h6 Kd1 79.h7 e1Q 80.h8Q Qa5 81.Qd4 Kc2 82.Qc5 Qc5 83.Kc5 Kb3 ½–½. Teske,Henrik (2500) – Jussupow,Artur (2665), Bundesliga, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6 5.c4 c5)

7.Be2 Bb7 8.0-0 d6 9.d3 Nbd7 10.Nc3 e6 11.Rb1 Qe7 12.Nd2 d5 13.bc5 bc5 14.Re1 dc4 15.Nc4 Nb6 16.Na5 Ba6 17.Bf3 Rac8 18.Qc2 Qd7 19.Red1 Rfd8 20.Be2 Qc7 21.Nc4 Nfd5 22.Ne4 e5 23.Nc3 Nc3 24.Bc3 Nc4 25.dc4 Rd1 26.Qd1 Qc6 27.Qc2 e4 28.Bg7 Kg7 29.Rd1 Rc7 30.Rd5 Bb7 31.h3 (worse is 31.Qe4 Qf6+=) 31...Qf6 32.Rd1 Bc6 33.Rb1 Rb7 34.Rb7 Bb7 35.Qa4 a6 36.Qd7 Qc6 37.Qe7 Bc8 38.Qe5 Kg8 39.g4 f5 40.Kg2 Be6 41.gf5 Bf5 42.Bg4 Bg4 43.hg4 h6 44.Kg3 Kf7 45.Kf4 (better is 45.g5!? hg5 46.Qg5+–) 45...g5= 46.Kg3 a5 47.f4 ef3 48.Qd5 Qe6?? (48...Qd5 49.cd5 c4 50.Kf3 h5 51.gh5 g4 52.Ke2 g3–+) 49.Kf3+/- (49.Qc5?! f2 50.Kf2 Qg4 51.Qc7 Kf6 52.Qb6 Qe6=) 49...Kf6? (49...Qd5 50.cd5 c4+–) 50.Qc5+– Kg6 51.e4 Qe8 52.Qa5 Qb8 53.Qf5 Kg7 54.Qd7 Kg6 55.Qe6 Kg7 56.e5 1–0. Kaenel,Hansjuerg (2355) – Leib,A (2220), 111th ch–SUI, 2011. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6 5.c4 c5)

7.Be2 Nc6

8.Qb3 a6 A) 9.d3 cb4 (9...d6 10.0-0 Bf5 11.Nc3 Re8 12.Rfb1 e5 13.Nd2 Ne7 14.Nde4+=) 10.ab4 d5 11.0-0 Qd6 12.Ra4 Bd7 13.Na3 Rfc8 14.Ra1=; B) 9.0-0 d6 (9...Bb7 10.Nc3 cb4 11.ab4 a5 12.b5 Nb4 13.d4 Qc7 14.Rfc1+=) 10.d4 cd4 11.ed4 d5 12.Ne5 dc4 13.Bc4 Nd4 14.Nf7=.

8.Qb3 Bb7 A) 9.0-0 d6 (9...e6 10.d4 cd4 11.Nd4 Nd4 12.Bd4 Qe7 13.Rd1 d6 14.Nd2+=) 10.d4 cd4 11.ed4 e6 12.Qe3 Ne7 13.Bd3 Nf5 14.Qe2=; B) 9.Nc3 d6 (9...h6 10.Nd5 e6 11.Nf6 Bf6 12.0-0 d6 13.d4 cd4 14.ed4+=) 10.0-0 e6 11.d4 cd4 12.ed4 a6 13.Rad1 Qc7 14.d5=.

8.Qb3 Qc7 A) 9.0-0 a6 (9...d6 10.d4 Bf5 11.Nc3 cd4 12.Nb5 Qb7 13.Nfd4 Bd7 14.Bf3=) 10.d4 cd4 11.ed4 e6 12.Nc3 Ng4 13.Rad1 Nd4 14.Rd4+=; B) 9.d4 d6 (9...cd4 10.ed4 d6 11.0-0 e5 12.Re1 Re8 13.Nc3 e4 14.Nb5+=) 10.0-0 Bf5 11.Nc3 cd4 12.Nb5 Qb7 13.Nfd4 Bd7 14.Bf3=.

8.Qb3 d6 A) 9.0-0 Bg4 (9...Bf5 10.d3 a6 11.Nc3 Re8 12.Rfb1 e5 13.Nd2 Ne7 14.Nde4+=) 10.Nc3 a6 11.d3 Re8 12.Rfb1 e5 13.Nd5 Nd5 14.cd5=; B) 9.d3 a6 (9...Bg4 10.0-0 a6 11.Nc3 Qc7 12.Rfb1 e5 13.b5 Na5 14.Qc2+=) 10.0-0 Bf5 11.Nc3 Re8 12.Rfb1 e5 13.Nd2 Ne7 14.Nde4+=.

8.Qb3 e6 9.0-0 (9.d4 cd4 (9...Bb7 10.0-0 cd4 11.Nd4 Nd4 12.Bd4 d6 13.Nd2 Qc7 14.Qd3+=) 10.Nd4 Bb7 11.0-0 Nd4 12.Bd4 d6 13.Nd2 Qc7 14.Qd3+=) 9...d5 (9...d6 10.d4 cd4 11.ed4 Bb7 12.Qe3 Ne7 13.Bd3 Nf5 14.Bf5=) 10.Rc1 d4 (10...cb4 11.ab4 a5 12.b5 Nb4 13.d4 dc4 14.Rc4+=) 11.ed4 cd4 (11...Nd4 12.Nd4 cd4 13.Bf3 Rb8 14.Re1=) 12.d3 (12.b5 Na5 13.Qd3 Nh5 14.Bf1+=) 12...Nh5 (12...e5 13.b5 Na5 14.Qa2=) 13.Nbd2 (13.Nfd2 Nf4 14.Bf3=) 13...Nf4 14.Bf1 (14.Re1=) 14...g5 (14...e5!?=) 15.Qa4+= Bb7 16.b5 Ne7 17.Ng5 Ned5 18.cd5 (better is 18.Ndf3!? Nc7 19.g3+=) 18...Qg5= 19.Ne4 Qd5 20.Rc7 f5 21.Ng5 (21.Rg7 Kg7 22.Qd4 Qd4 23.Bd4 Kh6=) 21...Rac8 22.Rg7 (22.Rb7!? Qb7 23.g3+=) 22...Kg7-/+ 23.Bd4 e5 24.Bb2 Ng2 25.f3 h6 (25...Ne3 26.Re1 f4–+ (26...Nf1 27.Re5 Kg6 28.Rd5 Bd5 29.Kf1 Kg5 30.h4 Kg6 31.Qd4+–)) 26.Bg2+= hg5 27.Re1 Rfe8 28.Qa7?? (better is 28.h4-/+) 28...Rc2–+ (28...Rc2 29.Bh1 Rb2 30.Qb6 Rb5–+) 0–1. Meskovs,Nikita – Romanov,Evgeny, Fagernes International, 2016. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6 5.c4 c5)

8.b5 Na5 9.d3 d5 10.Nbd2 Bb7 11.Qc2 Ne8 12.Bg7 Ng7 13.cd5 Bd5 14.0-0 Ne6 15.Rfd1 Qc7 16.Qc3 Rac8 17.Ne5 Nd8 18.a4 f6 19.Bf3 Bf3 20.Nef3 Ndb7 21.Rac1 Qd7 22.Nc4 Qe6 23.Nfd2 Rfd8 24.Na5 Na5 25.Nc4 Nc4 26.Qc4 Qc4 27.Rc4 a6 28.ba6 Ra8 29.Kf1 Ra6 30.d4 Kf7 31.Ke2 Rda8 32.dc5 Ra4 33.Ra4 Ra4 34.cb6 Rb4 35.g4 Rb6 36.Kf3 ½–½. Sergeev,Vladimir (2505) – Neuman,Petr (2440), CZE–chT, 2009. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 b6 5.c4 c5)

5.Bc4 Bb7

6.Ne5 e6 7.0-0 d6 8.Ng4 Ng4 9.Bg7 Ne3 10.de3 Rg8 11.Bb2 Qg5 12.Bb5 Qb5 13.a4 Qg5 14.f3 h5 15.Nd2 Nd7 16.Nc4 d5 17.f4 Qe7 18.Ne5 Ne5 19.fe5 Qb4 20.Ba3 Qa4 21.Be7 Qd7 22.Bf6 Bc6 23.Qe2 Bb5 24.c4 Bc4 25.Qc2 Bf1 26.Rf1 c5 27.Qe2 c4 28.Rd1 Qc6 29.Qc2 b5 30.e4 de4 31.Rd6 Qc7 32.Qe2 a6 33.Qe4 Rc8 34.Ra6 b4 35.Bg5 c3 36.Bc1 b3 37.Qa4 Qd7 38.Qb3 Kf8 39.Ra2 Kg7 40.Rc2 Qc7 41.Bb2 Rgd8 42.Rc3 Qd7 0–1. arti000 – niror, kurnik, 2012.

6.Ng5 e6 7.0-0 0-0 8.Re1 Nd5 9.Bg7 Kg7 10.Bd5 Bd5 11.e4 Bb7 12.f4 Nc6 13.Qf3 Nb4 14.Na3 Qe7 15.Qh3 h6 16.Nf3 Nc6 17.Nb5 d6 18.f5 g5 19.Qg3 e5 20.h4 f6 21.d4 a6 22.Nc3 Nb4 23.Rac1 Rg8 24.d5 a5 25.hg5 hg5 26.Nh4 Kf7 27.Ng6 Rg6 28.fg6 Kg6 29.Ne2 Rh8 30.Kf2 Ba6 31.a3 Be2 32.Re2 Na2 33.Ra1 Nc3 34.Qc3 Rh4 35.Re3 Rf4 36.Rf3 Rf3 37.gf3 Qh7 38.Ke3 Qe7 39.Qc6 Qf7 40.Rg1 Qg7 41.Rg2 Qf7 42.Qb7 Qg7 43.Qc8 Qf7 44.Qf5 Kg7 45.f4 Qg6 46.Qd7 Qf7 47.Qf7 Kf7 48.fg5 fg5 49.Rg5 Kf6 50.c3 Kg5 51.c4 Kf6 52.Ke2 Ke7 53.Kd2 Kd7 54.Kd3 c6 55.Kd2 cd5 56.Ke2 dc4 57.Kf2 Kc6 58.Kf3 Kc5 59.Kg4 Kd4 60.Kg5 c3 61.Kg6 c2 62.Kg7 c1Q 0–1. arti000 – water123, kurnik, 2012.

5.d4 Bb7

6.a3 d6 7.c4 Nbd7 8.Nbd2 a6 9.Be2 e6 10.0-0 0-0 11.Rc1 c6 12.h3 d5 13.a4 Qe7 14.b5 ab5 15.ab5 dc4 16.Bc4 cb5 17.Bb5 Rfc8 18.Rc8 Rc8 19.Qb3 Nd5 20.Ba3 Qd8 21.Qa4 Rc7 22.Bd6 Nc3? 23.Qb4?? Rc8 24.Rc1 Nb5 25.Rc8= Qc8 26.Qb5 Qc1 27.Kh2 Qc8 28.Ne5 Ne5 29.de5 Bf8 30.Nf3 Bf3= 31.gf3 Qd8 32.Qc6 Bd6 33.ed6 Kf8 34.e4 b5 35.e5 Qb8?? 36.Qd7 b4 37.Qe7 Kg7 38.d7 b3 39.d8Q Qd8 40.Qd8 b2 41.Qb6 1–0. quari15 – 23anetka400, kurnik, 2012.

6.c4 e6 7.Nbd2 d6 8.Bd3 Nbd7 9.0-0 0-0 10.Qc2 c5 11.a3 cb4 12.ab4 a5 13.ba5 ba5 14.Ra4 Qc7 15.Rfa1 Ra7 (better is 15...Bc6!? 16.R4a3 Rfb8=) 16.Bc3+/- Rfa8 17.Nb3 Bf3 18.gf3 Qc6 19.e4 (worse is 19.Na5 Qf3 20.Qe2 Qe2 21.Be2 Ne4=) 19...Nb6 20.Ra5 Ra5 21.Ra5 Ra5 22.Ba5 Nfd7 23.Bb6 Nb6 24.c5 dc5 25.Qc5 Qb7 26.Na5 Qb8 27.Nc6 Qb7 28.e5 Bf8 29.Qb5 Qc7 30.Be4 Kg7 31.Kg2 h5 32.f4 Nc8 33.Bd3 Ne7 34.Ne7 Qe7 35.d5 ed5 36.Qd5+/- Qe6 37.Qe6 fe6 38.Kf3 Bc5 39.h3 Kf7 40.Ke2 Bd4 41.f3 Bb2 42.Bc4 Bc1 43.Kd3 Bf4 44.Ke4 g5 45.Bb5 Ke7 46.Be2 Bg3 47.Bd1 Bf4 48.Be2 h4= 49.Bd1 Bc1 50.Be2 Bd2 51.Bb5 Bc1 52.Bc4 Bd2 53.Bb3 Bc1 54.Bc4 Bd2 55.Bb3 Bc1 56.Bc4 ½–½. futsalboy – pecky987 (1700), kurnik, 2011.

6.Bd3 0-0 7.0-0 a6 8.Nbd2 d6 9.c4 Nbd7 10.Qe2 b5 11.cb5+/- ab5 12.Bb5 c6 13.Bd3 c5 14.b5 cd4 15.Nd4 (< 15.Bd4 e5=+). weBNimzo (2095) – mick_larssen (1950), ChessWorld.net, 2003.

6.Be2 0-0 7.0-0 d6 8.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0 d6 8.d4).

6.Be2 0-0 7.0-0 d6 8.h3 e6 9.c4 Nbd7 10.b5 c6 11.a4 c5 12.Nc3 cd4 13.Nd4 Qc7 14.Rc1 d5 15.cd5 ed5 16.Nd5 Qd6 17.Bf3 Nd5 18.Qb3 Nc5 19.Qc4 Ne3 20.fe3 Bf3 21.Rf3 Rac8 22.Qb4 Rfd8 23.Ba3 Bd4 24.ed4 Qd4 25.Qd4 Rd4 26.Rfc3 Ra4 27.Bc5 bc5 28.Rc5 Rc5 29.Rc5 Rb4 30.Rc8 Kg7 31.Rb8 a6 32.b6 a5 33.Kf2 a4 34.Ke3 a3 35.Ra8 Rb3 36.Kd4 Rb6 37.Ra3 Rb2 38.g4 Rd2 39.Ke3 Rh2 40.Kf4 Rf2 41.Kg3 Rc2 42.Ra7 Rc6 43.Kh4 Rc5 44.Kg3 h5 45.Ra6 hg4 46.hg4 Rc3 47.Kh4 Rc1 48.Kg3 Kh6 49.Ra7 f6 50.Ra6 Rf1 51.Kg2 Rf4 52.Kg3 Rf1 53.Kg2 Rf4 54.Kg3 Rf1 ½–½. mihai740609 – tiguan44, kurnik, 2012.

6.Be2 Nc6 7.b5 Na5 8.Nbd2 d5 9.0-0 Bc8 10.c4 Be6 11.Qa4 dc4 12.Nc4 Bc4 13.Bc4 Nc4 14.Qc4 0-0 15.Rfc1 Rc8 16.Ne5 Ne4 17.f3 Nd6 18.Qa4 Be5 19.de5 Nf5 20.e4 Nh6 21.Rd1 Qe8 22.Rac1 e6 23.Ba3 c5 24.bc6 Kg7 25.Bf8 Qf8 26.Rd7 Ng8 27.Qc4 Ne7 28.Qb4 Rc6 29.Rc6 Nc6 30.Qf8 Kf8 31.Rc7 Ne5 32.Ra7 Kg7 33.Rb7 Kf6 34.Rb6 h5 35.a4 Nc4 36.Rb4 Nd6 37.a5 1–0. mihai740609 – jerzyslowik, kurnik, 2012.

6.Be2 Nc6 7.b5 Nb8 8.0-0 a6 9.c4 ab5 10.cb5 0-0 11.Nc3 d6 12.a4 Nbd7 13.Qc2 e6 14.Rfc1 Qe7 15.h3 Rfc8 16.e4 e5 17.d5 Nc5 18.Ba3 Qd7 19.Bb4 Qe7 20.a5 ba5 21.Ba5 Nfd7 22.Rcb1 Ra7 23.b6 cb6+= 24.Bb6?? Ra1–+ 25.Ra1 Nb6 26.Qb2 Rb8 27.Qb6= f5 28.ef5?? gf5?? 29.Qa7? e4?? 30.Qb8+– Bf8? 31.Nd4 Kf7 32.Ra7 Bg7 33.Ncb5 Bd4 34.Nd4 Qe5 35.Rb7 Nb7 36.Qb7 Kg6 37.Ne6 Qa1 38.Bf1 Qf6 0–1. tadziczek – psotniak, kurnik, 2012.

6.Be2 e6 7.0-0 d6 8.b5 Nbd7 9.Nbd2 0-0 10.c4 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 Qb8 14.Qa2 c6 15.Ra1 cb5 16.cb5 Bd5 17.Qa7 Qa7 18.Ra7 Rc8 19.Bd3 e5 20.de5 de5 21.e4 Be6 22.Kf1 Nc5 23.Bb1 Nfd7 24.Ke2 f5? 25.ef5 Bf5+/- 26.Bf5 gf5 27.Ng5 e4 28.Ne6?? Bb2–+ 29.Nc5 Nc5 30.Nc4 Nd3 31.Nb6 Rb8 32.Ra6 Bd4 33.Nc4 Rb5 34.Rd6 Bf2 35.Rd8 Kg7 36.Nd6 Rb2 37.Kd1 e3 38.Nf5 Kg6 39.Rd3 Kf5 40.g3 h5 41.h3 Bg3 42.Re3 Rb1 43.Ke2 Bf4 44.Rf3 h4 45.Rd3 Ke5 46.Kf3 Bg3 47.Kg2 Rb2 48.Kg1 Ke4 49.Rd7 Kf3 50.Rf7 Ke3 51.Re7 Kf3 52.Re6?? Rb1 53.Re1 (53.Re1 Re1). mihai740609 (1615) – dudov, kurnik, 2011.

5.Be2 0-0

6.0-0 Bb7 7.d3 d5 8.a3 Nh5 9.Bg7 Ng7 10.Nbd2 Qd6 11.c4 dc4 12.Nc4 Qc6 13.Rc1 Qd5 14.e4 Qd7 15.Nce5 Qd6 16.Nc4 Qd7 17.Nfe5 Qb5 18.d4 Be4? 19.Nd6!!+– Qd5 20.Ne4 Qe4 21.Bf3 Qf3 22.Qf3 c6 23.Nc6 Nd7 24.Ne7 Kh8 25.Rc7 Nf6 26.Qf6 a5 27.ba5 ba5 28.d5 h6 29.Ng6 (29.Ng6 Kh7 30.Nf8 Rf8 31.Rf7 Rg8 32.Qf5 Kh8 33.Qg6 a4 34.Qh6#) 1–0. exp2005 – doru67, kurnik, 2012.

6.0-0 d6 7.c4 e5 8.Nc3 Bb7 9.d4 ed4 10.Nd4 (worse is 10.Qd4 Nc6 11.Qf4 Nb4+=; 10.ed4?! Re8+=) 10...Ne4 11.Ne4 Be4 12.Bf3 Bf3 13.Qf3 (13.gf3? c5–+) 13...c6 (13...Nd7 14.Nc6 Qh4 15.g3 Qc4 16.Rfc1+=) 14.b5 d5 (better is 14...Qc7!?+=) 15.bc6+– dc4 16.Rfd1 (16.Ba3!? Bd4 17.ed4 Nc6 18.Bf8 Nd4+–) 16...Qc7 17.Nb5?? (17.Rac1 Nc6 18.Nb5 Qc8+–) 17...Qe7?? (better is 17...Qc6 18.Bg7 Kg7=) 18.Ba3 Qe5 19.Rab1 (19.Bf8!? Qb5 20.Bg7 Kg7+–) 19...Na6? (better is 19...Rc8 20.c7 Na6+–) 20.Bf8 Rf8 21.Rd5 Qe6 22.c7 Nc7?? 23.Nc7 Qc6 24.Nb5 c3 25.Rc1 c2 26.a4 Qc4?? 27.Rd2+– Qa4 28.Nd6 Rd8 29.Qf7 Kh8 30.Rdc2 Qd7 31.Rd1 h6 32.Qg6 Rf8 33.Rcd2 Qe7 34.h3 Be5 35.Nf5 Qc7 36.Qh6 Kg8 37.Rd7 Qc6 38.Qh7 1–0. elsh1403 – rrokuteli (1630), kurnik, 2011.

5.Be2 a6

6.0-0 Bb7 7.c4 a5 8.b5 c5 9.a4 d6 10.d4 Qc7 11.d5 Nbd7 12.Nbd2 0-0-0 13.e4 Nh5 14.Bg7 Ng7 15.Ng5 Rdf8 16.Ndf3 h6 17.Nh3 g5 18.Nd2 Ne5 19.f4 Ng6 20.fg5 hg5 21.Ng5 Kb8? 22.Rf7 Rf7 23.Nf7 Rf8 24.Ng5 Nf4 25.Bg4 Bc8 26.Ra3 Bg4 27.Qg4 Qc8 28.Qc8 Kc8 29.Rf3 Ne2 30.Kf2 Rf3 31.Kf3 Nc3 32.Ne6 Ne8? 33.g4 Na4 34.h4 Nc3 35.g5 a4 36.h5 a3 37.g6 Nf6 38.h6 a2 39.Nb3 Nce4 40.h7 Nd2 41.Nd2 a1Q 42.h8Q Kb7 43.g7 Qc3 44.Ke2 Qe5 45.Kd1 Qa1 46.Ke2 Qe5 47.Kd1 Ne4?? 48.Ne4 Qe4 (48...Qe4 49.g8Q Qf3 50.Ke1 Qe3 51.Kf1 Qc1 52.Kg2 Qc2 53.Kh1 Qb1 54.Kh2 Qc2 55.Qg2 Qc4 56.Qh7 Qf4 57.Nf4 Kc8 58.Qe7 c4 59.Qg8). elsh1403 – neron35 (1605), kurnik, 2011.

6.0-0 Bb7 7.c4 d6 8.a4 Nbd7 9.Qb3 Nh5 10.Nc3 Nhf6 11.a5 Nb8 12.d4 0-0 13.Rfd1 Bc8 14.b5 ba5 15.Ra5 c6 16.Rda1 cb5 17.Nb5?? (better is 17.cb5 Qb6 18.Nd2+–) 17...Nc6= 18.Nc3?? (better is 18.R5a2=) 18...Na5–+ 19.Ra5 (19.Qa4 Rb8 20.Ra2–+) 19...Qa5 20.Nd5 Nd5 21.cd5 Bg4 22.h3 Bf3 23.Bf3 Rab8 24.Qc2 Qb4 25.Bc3 Qb1 26.Qd1 Qd1 27.Bd1 Rb1 28.Kh2 Rd1 29.Kg3 Rb8 30.Kf4 Rc1 31.Bd2 Rc2 32.Ba5 Rb5 33.Bc7 Rc7 0–1. elsh1403 – neron35, kurnik, 2011.

6.0-0 Bb7 7.c4 d6 8.b5 a5 9.a4 Nbd7 10.d4 c5 11.d5 Qc7 12.Ng5 h6 13.Nf3 0-0-0 14.Nbd2 h5 15.Bd3 Ne8 16.Qc2 Bb2 17.Qb2 Nef6 18.Rfe1 h4 19.e4 h3 20.e5 (20.g3!?+=) 20...Ne5 21.Ne5 de5 22.Qe5 Qe5 23.Re5 Rde8 24.Rae1+= Kd7 25.g3 Nh5 26.Nf3 f6? 27.R5e2 g5 28.Bf5 Kd6 29.Re6 Kc7 30.Re7 Re7 31.Re7 Kb8 32.Nd2 Bc8 33.Bc8 Kc8 34.Ne4 Rd8 35.Rf7 Re8 36.f3 f5 37.Nd6 Kd8 38.Ne8 Ke8 39.Rb7 f4 40.g4 Nf6 41.Rb6 Nd7 42.Ra6 Ne5 43.Ra5 Nc4 44.Ra6 Ne3 45.d6 c4 46.Rc6 Kd7 47.Kf2 c3 48.a5 Nd5 49.a6 c2 50.a7 c1Q 51.Rc1 Nb6 52.Rc6 Na8 53.Ke2 Kd8 54.Kd3 Kd7+– 55.Ke4 Kd8 56.Kf5 Kd7+– 57.Kg5 Kd8 58.Kf4 Kd7 59.Kg3 Kd8 60.Kh3 Kd7 61.Kg3 Kd8 62.h4 Kd7 63.h5 Ke6 64.h6 Kd5 65.d7 Kd4 66.d8Q Ke3 67.Re6 1–0. elsh1403 – neron35 (1635), kurnik, 2011.

6.0-0 Bb7 7.c4 d6 8.d4 Nbd7 9.Nbd2 e6 10.Rc1 Qe7 11.Qb3 b5 (11...0-0!?+=) 12.cb5+/- ab5 13.Bb5 0-0 14.Rc7 Bd5 15.Bc4 Bc4 16.Nc4 Rfc8 17.Rc8 Rc8 18.a4 d5 19.Nce5 Rb8? (19...Ne5 20.de5 Ne4 21.Bd4+–) 20.b5 (20.Nc6 Qd6 21.Nb8 Qb8+–) 20...Nb6? (20...Ne5 21.Ne5 Qb7+–) 21.Nc6 Qb7 22.Nb8 Qb8 23.Rc1 Nc4 24.Ne5 Na5 25.Qc2 Ne4 26.Qc8 Qc8 27.Rc8 Bf8 28.Nd7 Nc4 29.Rf8 Kg7 30.Bc1 Na5 31.Ra8 Nb7 32.a5 Ned6 33.a6 Na5 34.b6 Ndb7 35.ab7 Nb7 36.Nc5 Nd6 37.b7 Nb7 38.Nb7 h6 39.Ba3 Kf6 40.Nd6 e5 41.de5 Ke5 42.f4 Ke6 43.Ra7 f6 44.Ra6 g5 45.Ne8 Kf5 46.Rf6 Ke4 47.fg5 hg5 48.Bc1 d4 49.ed4 Kd4 50.Bg5 Ke5 51.h4 Ke4 52.h5 Ke5 53.h6 Kd5 54.h7 Kc5 55.h8Q Kb5 56.Qf8 Kc4 57.Qd6 Kc3 58.Rf5 Kc4 59.Rc5 Kb3 60.Qb6 Ka4 61.Ra5# 1–0. tadziczek – neron35 (1625), kurnik, 2012.

5.Be2 Bb7

6.0-0 0-0 7.d3 d6 8.Nbd2 a6 9.c4 Nbd7 10.a3 c6 11.Rb1 b5 12.h3 bc4 13.Nc4 d5 14.Nce5 Ne5 15.Ne5 Qc7 16.f4 Nd7 17.Nd7 Qd7 18.Bg7 Kg7 19.Bf3 e6 20.Rc1 Qd6 21.Qc2 Rfd8 22.Qc5 Qd7 23.a4 Kg8 24.Rfd1 Rdc8 25.e4 de4 26.de4 Qe8 27.f5 ef5 28.ef5 Qf8 29.Qc2 Qb4 30.Rb1 Qe7 31.Re1 Qf6 32.Rb7 Qf5 33.Qf5 gf5 34.Ree7 Rf8 35.Rbc7 Rac8 36.Bc6 Rc7 37.Rc7 Kg7 38.Ra7 Rc8 39.Bf3 Rc1 40.Kh2 h6 41.Ra6 Ra1 42.Bc6 Ra2 43.Bb5 f4 44.Bc6 Rc2 45.Bf3 Ra2 46.Ra8 Kf6 47.a5 Ke5 48.a6 Kd6 49.a7 Kc7 50.Rf8 f6 51.a8Q 1–0. aniabielak – ank59, kurnik, 2012.

6.0-0 0-0 7.d4 c5 8.dc5 bc5 9.b5 d5 10.c4 e6 11.a4 a6 12.Nbd2 ab5 13.ab5 Ra1 14.Qa1 Nh5 15.Bg7 Ng7 16.Rd1 Nd7 17.cd5 ed5 18.Nb3 c4 19.Nbd4 Nc5 20.Nc6 Bc6 21.bc6 Nb3 22.Qa4 Qa8 23.Qa8 Ra8 24.c7 Rc8?? 25.Rd5 Ne6 26.Bc4 Rc7?? 27.Bb3+– Rc1 28.Rd1 Rd1 29.Bd1 Nc5 30.Bc2 f5 31.g3 Kf7 32.h4 Kf6 33.Kg2 h6 34.Nd4 Nd7 35.h5! gh5 36.Nf5 Kg5 37.f4 (37.f4 Kg6 38.e4+–) 1–0. ejdrzej (1750) – mietz, kurnik, 2012.

6.0-0 c5 7.bc5 Qc7 8.cb6+/- ab6 9.d4 h5 10.c4+– h4 11.h3 Ng4? 12.hg4 h3 13.g3 f5 14.gf5 gf5 15.Kh2 Ra5 16.Qb3 e5 17.Ne5 Nc6 18.Ng6 Rh6 19.c5 Ne7 20.Ne7 Ke7 21.Qg8 Rg6 22.Bc4 d5 23.cd6 Qd6 24.Qf7 Kd8 25.Qb7 f4 26.gf4 Rg2 27.Kh1 Rag5 28.Ba3 Qh6 29.Qe7 Kc8 30.Ba6 Kb8 31.Qb7 1–0. Woschkat,Karl_Heinz – Lausch,Axel, remoteschach.de, 2002.

6.0-0 d5 7.a3 e5? (better is 7...0-0!?=) 8.Ne5 0-0 9.d3 Qd6 10.Nd2 Nc6 11.Ndf3 Ne5 12.Be5 Qc6 13.Nd4 Qe8 (13...Qd7+/-) 14.f4?? (better is 14.Bc7 Qe7 15.Bf4+–) 14...c5 15.Nb5?? (better is 15.bc5 bc5 16.Nb3+/-) 15...Qb5–+ 16.d4 Qc6 17.Bf3 Rfe8 18.c4 Ne4 19.b5 Qd7 20.Bg7 Kg7 21.cd5 Bd5 22.a4 Nc3 23.Qd2 Ne4 24.Qb2?? Nf6 25.Bd5 Qd5 26.dc5 bc5 27.Rfd1 Qe4 28.Ra3 Rad8 29.Rd6 Rd6 (29...Rd6 30.Ra1 Qe3 31.Qf2 Qc3–+) 0–1. elsh1403 – asimhajvalia (1645), kurnik, 2012.

6.0-0 e6 7.c4 0-0 8.d4 Nh5 9.Qc2 c5 10.dc5 Bb2 11.Qb2 bc5 12.b5 Ng7 13.Nbd2 d5 14.a4 dc4 15.Nc4 Qd5? (better is 15...Nd7+/-) 16.Rfd1+– Qc4 (16...Qh5 17.Nd6 Bd5+–) 17.Bc4 Bf3 18.gf3 Nf5 19.e4 (better is 19.Qe5 a6+–) 19...Nh4 (19...Nd4+–) 20.Qf6 a6 (20...g5 21.Qg5 Ng6 22.h4+–) 21.Qh4 ab5 22.ab5 Ra1 23.Ra1 Nd7 24.Ra7 Ne5 25.Be2 Rd8 26.Qd8 Kg7 27.Qe7 (27.Qe7 Nf3 28.Bf3 e5 29.Qf7 Kh6 30.Qf6 c4 31.Qh4#; 27.Qc7 g5 28.Qe5 Kg6 29.Qc7 Kh6 30.Qf7 g4 31.Qf6 Kh5 32.fg4#) 1–0. ejdrzej (1660) – eminbujupi, kurnik, 2012.

6.0-0 e6 7.d4 0-0 8.c4 Qe7 9.b5 Ne4 10.a4 c5 11.Qc2 cd4 12.ed4 d5 13.cd5 Bd5 14.Bd3 Nf6?? (better is 14...Qb7+=) 15.Ba3+– Qe8 16.Bf8 Qf8 17.Ne5 Nbd7 18.Nc3 Bb7 19.Rfe1 Ne5 20.de5 Nd5 21.Nd5 ed5 22.Qc7 Rb8 23.Rac1 d4? 24.h3 Bh6 25.Rc4 Bd5? 26.Rd4 Be6 27.Qa7 Ra8 28.Qb6 1–0. tadziczek – gorgonit (1605), kurnik, 2012.

6.0-0 e6 7.d4 h6 8.c4 d5 9.cd5 Nd5 10.a3 Nf6 11.Nbd2 g5 12.Rc1 Na6?? (12...Nbd7 13.b5+/-) 13.Re1 (13.Ba6 Ba6 14.Qa4 Nd7 15.Qa6 g4+–) 13...Qe7?? (13...Nb8 14.Qc2 c6 15.e4+/-) 14.b5 Nb8+/- 15.Qc2 0-0 16.Qc7 Qc7 17.Rc7 Bd5 18.Bc4 Bc4 19.Nc4 Nd5 20.Rb7 Rc8 21.Rc1 Rc7 22.Rc7 Nc7 23.Nb6! ab6 24.Rc7 Bf8 25.Rc8 Kg7 26.Ne5 Bd6 27.Nc6 Nc6 28.Ra8 Na5 29.d5 e5 30.e4 Nc4 31.Bc1 Bc5 32.Kf1 Nd6 33.f3 Nb5 34.a4 Nd4 35.Ke1 Nc2 36.Ke2 Nb4 37.Ba3 Nc2 38.Bc5 bc5 39.Kd3 Nb4 40.Kc4 Nc2 41.Kc5 Ne3 42.a5 Ng2 43.a6 Nh4 (43...Nh4 44.d6 Nf3+–). tadziczek – neron35 (1620), kurnik, 2012.

6.0-0 h5 7.a3 h4 8.h3 Bh6 9.Bc4 Rg8 (better is 9...Bg7+/-) 10.Ng5?? (10.Bf6!? ef6 11.Nh4+/-) 10...e6?? (better is 10...Bg5 11.Qe1 Rh8–+) 11.Nf3 g5 12.Kh2 (12.Nh2!?+=) 12...g4= 13.hg4 Ng4 14.Kh1 h3-/+ 15.Rg1?? hg2 16.Kg2?? Ne3 17.Kh1 Nd1 18.Rd1 0–1. erisonpassos – perchentiany, kurnik, 2011.

6.0-0 h5 7.d3 Nc6 8.b5 Nb8 9.c4 c6 10.a4 Ng4?? (better is 10...h4+=) 11.Bg7+– Rg8 12.h3 (better is 12.Bb2 a6+–) 12...Rg7 13.hg4 hg4 14.Ne5 f5 15.Nc3 (15.d4 d6 16.Nd3 Rh7+–) 15...d6 16.Ng4! fg4 17.Bg4 Nd7 18.a5! ba5 19.bc6 Bc6 20.Nd5 Ne5 21.Be2 e6 22.d4 Rh7? 23.de5+– Qh4?? 24.Nf6 Ke7 25.Nh7 de5 26.Bf3 Rh8 27.Bc6 Rh7 28.Qd7 Kf6 29.Qd8 Re7 30.g3 Qh3 31.Ra5 Kf7 32.Re5 Kf6 33.Re4 Qf5 34.Rf4 (34.Rf4 Qf4 35.gf4+–) 1–0. ejdrzej (1660) – lapaimikura (1630), kurnik, 2012.

6.0-0 h6 7.d3 0-0 8.Nbd2 Na6 9.a3 c5 10.b5 Nc7 11.c4 d5 12.Qc2 dc4 13.dc4 Qc8 14.Rfd1 Ne6 15.h3 Qc7 16.Be5 Qc8 17.Bd3 Rd8 18.Ne4?? (better is 18.e4=) 18...Rd3!–+ 19.Qd3 Be4 20.Qc3?? Bf3 21.gf3 Ng5 22.e4 Qh3 23.Rd3 Qe6 24.Rad1 Nh3 25.Kg2 Ng5 26.Rd8?? Rd8 27.Rd8 Kh7 28.Rd3 Qh3 29.Kg1 Qe6 30.Rd8?? Nf3! 31.Qf3 Qe5 32.Rd5 Nd5 33.ed5 Qe1 34.Kg2 f5 35.Kh2 Be5 36.Kg2 Bd6 37.Qd3 Qe5 38.Kf1 Qa1 39.Kg2 Qe5 40.Kf1 h5 41.Qf3 Kh6 42.Qd3 g5 43.Qf3 h4 44.Qd3 g4 45.Qd2 Kh5 46.Qd1 f4 47.Qd3 h3 48.Qh7 Kg5 (48...Kg5 49.Qg8 Kh4 50.Qh7 Qh5 51.Qh5 Kh5–+) 0–1. ejdrzej (1635) – danflorin1, kurnik, 2011.

6.c4 Nc6 7.a3 d6 8.d4 Qd7 9.d5 Nd8 10.0-0 0-0 11.Nfd2 c6 12.Nc3 cd5 13.Rc1 dc4 14.Nc4 Ne6 15.Bf3 Bf3 16.Qf3 Rac8 17.Nd2 Rc7 18.Ndb1 Rfc8 19.Rfd1 Qd8 20.Nd5?? (20.e4 Bh6 21.Rc2 Ng5-/+) 20...Rc1 21.Nf6-/+ ef6 22.Bc1+= f5 23.Qd5 Be5 24.f4 Bf6 25.Nd2 Qc7 26.Nb3 Qc2 (26...Qc2 27.Qd3 Qd3 28.Rd3 a5-/+) . 0–1, lican – andlau4, kurnik, 2012.

6.d3 0-0 7.h3 d6 8.g4 Nbd7 9.Rg1 e5 10.g5 Nh5 11.Nh4 f6 12.Bh5 fg5 13.Bg6 hg6 14.Ng6 Rf6 15.Qh5 Kf7 16.Rg5 Qe7 17.Ne5 Ke6 18.Qg4 Kd5 19.c4 1–0. chocobom – smsh, kurnik, 2012.

6.h3 0-0 7.c4 d6 8.d4 Nbd7 9.Nbd2 Ne4 10.Qc2 Nd2 11.Qd2 e6 12.0-0 f5 13.Qc2 Be4 14.Qd1 Nf6 15.Ng5 Qd7 16.Bf3 Bf3 17.Nf3 Bh6 18.d5 ed5 19.cd5 a5 20.ba5 Ra5 21.Bf6 Rf6 22.Qb3 Bg7 23.Ng5 Rf7 24.Rab1 Re7 25.Ne6 Kf7 26.Rfc1 c5 27.Ng5 Kf8 28.Nh7 Kg8 29.Ng5 Bh6 30.Ne6 g5 31.Qb6 Kh7 32.Qb3 f4 33.Qd3 Kh8 34.Qg6 Rh7 35.Rb8 Qd8 36.Rd8 Bf8 37.Rf8 1–0. chocobom – smsh, kurnik, 2012.

6.h3 d6 7.c4 e5 8.0-0 Nbd7 9.d4 ed4 10.ed4 Qe7 11.a4 0-0 12.Nbd2 c5 13.b5 cd4 14.Bd4 d5 15.Nh2 dc4 16.Bc4 Nh5 17.Re1 Qd8 18.Bg7 Kg7 19.Ndf3 Nc5 20.Qd8 Rad8 21.Rad1 Rfe8 22.Rd8 Rd8 23.Re7 Rf8 24.Ne5 Nf4 25.Nf7 Kf6 26.Rc7 Bg2 27.Ra7 Bd5? 28.Ng4+– Kf5 29.Nd6?? Kg5 30.Bd5+/- Nd5 31.Rh7 Nf4 32.Nf7 Kf5 33.Ne3 Ke6? 34.Nd8?? Rd8–+ 35.Rc7 Nh3 36.Kg2 Ng5 37.Rc6? Kf7 38.Rb6 Nce4?? 39.a5= Ne6 40.a6. horacyad2010 – ikaivan, kurnik, 2011.

6.0-0 Nc6

7.a3 a6 8.d4 h5 (8...0-0 9.c4+=) 9.d5 (9.Nbd2 0-0+/-) 9...Na7 (9...Nb8 10.e4+=) 10.c4 Nc8 (10...0-0 11.Nc3+/-) 11.Nbd2 (11.e4 c6+/-) 11...Nd6 (11...0-0 12.Qc2+/-) 12.c5 (12.e4 c6+/-) 12...bc5 (12...Nc8 13.Ne4+/-) 13.bc5 Nf5 (13...Nb5 14.a4 Na7 15.e4+/-) 14.e4+– Nh6 15.Rb1 Nhg4?? (better is 15...Bc8+–) 16.Bf6 ef6 17.Rb7 0-0 18.Qa4 f5 19.ef5 gf5 20.Bd3 Qf6 21.Rc7 Qc3 22.Bf5 Be5 23.Ne4 Qb2 24.Rd7 Rab8 25.Bg4 hg4 26.Ne5 Qe5 27.Ng3 Rb2 28.Qg4 Kh8 29.Nf5 Kh7 30.Rd6 (30.Rd6 Rb6 31.Rb6 Qf5 32.Qf5 Kg7 33.Qg5 Kh7 34.Rh6) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.b5 Na5 8.a4 c6 (8...0-0 9.d4=) 9.c4 d5 10.d3 dc4 11.dc4 Qd1 12.Rd1 (worse is 12.Bd1 Nc4 13.Bc3 a6-/+) 12...0-0 13.Nbd2 Rfd8 14.Nd4 c5 15.N4b3 Nb3 16.Nb3 Ne4 17.Bg7 Kg7 18.Bf3 Nd6 (18...Rd6 19.Be4 Rd1 20.Rd1 Be4 21.Rd2=) 19.Bb7 (better is 19.Rd6 Rd6 20.Bb7+/-) 19...Nb7= 20.h3 Nd6 21.Rac1 a6 22.Nd2 ab5 23.ab5 Ra2 24.Ra1 Rda8 25.Rac1 R8a4 26.Kf1 Rb2 27.Ke1 Raa2 28.Nf3?? Rf2 29.Rd2 Rad2 30.Nd2 Rg2 31.e4 Rg3 32.e5 Re3 33.Kf2 Re5 34.Nf3 Rf5 35.Kg3 h5 36.Nh4 Re5 37.Ng2 Re4 38.Kf3 Rc4 39.Re1 Kf6 40.Ne3 Rc3 41.Kf2 Ne4 42.Kg1 Rb3 43.Nd5 Ke5 44.Nb6 Rb5 45.Nd7 Kf5 46.Kh2 Rb2 47.Kg1 c4 0–1. erisonpassos – slavisko, kurnik, 2011.

7.b5 Na5 8.c4 0-0 9.d3 d5 10.Bc3 dc4 11.dc4 Qd1 12.Rd1 (worse is 12.Bd1 Nc4 13.Be2 Nd6-/+) 12...Bf3 13.Bf3 (13.gf3?! Rfd8 14.Rd8 Rd8=) 13...Rad8 14.Rd8 Rd8 15.Ba5 ba5 16.Na3 Ne4 17.Rd1 Rd1 18.Bd1 Nd2 19.Be2 Bf8 20.Nc2 e6 21.Nd4 Ne4 22.Nc6 Bc5 23.Na5 Bb6 24.Nb3 Kg7 25.Bd3 Nc3? 26.a3 f5? 27.Nd2 e5 28.Bc2 e4 29.a4 c5 30.g3 Ba5 31.Nb3 Bb4 32.a5 Na2?? 33.b6 ab6 34.ab6 Nc3 35.b7 1–0. horacyad2010 – hhymer, kurnik, 2011.

7.b5 Na5 8.d3 0-0 9.a4 c6 10.c4 cb5 11.cb5 a6 12.d4 ab5 13.Bb5 Bf3 (13...Qc7 14.Nbd2+=) 14.Qf3+= d5 15.Rc1 (15.Nd2 Qd6+=) 15...e6?? (better is 15...Nb3!?-/+) 16.Ba3 (better is 16.Nd2!? Ne8 17.Ba3+/-) 16...Nb3= 17.Bf8 Bf8 18.Nc3 Na1 19.Ra1 Bg7 20.Ne2 Ne4 21.Rc1 Rc8 22.h3 Rc1 23.Nc1 Qc7 24.Ne2 f5 25.Qf4 e5 26.de5 Be5 27.Qh4 Kg7 28.f4 Bf6 29.Qe1 Qc5 30.Qc1 Qc1 31.Nc1 Bb2 32.Nd3 d4?? 33.Nb2+– de3 34.Kf1 Kf6 35.Ke2 Nc3 36.Ke3 g5 37.fg5 Kg5 38.Nc4 Nd5 39.Kf2 h5 40.Bc6 Nf4 41.Nb6 Nd3 42.Kg1 Ne5 43.Bb5 f4 44.a5 f3 45.gf3 Nf3 46.Kf2 Nd4 47.Be2 Nc6 48.a6 Na7 49.Bb5! Nb5 50.Nc8 Kh4 51.Kg2 Nc7 52.a7 Kg5 53.Ne7 Na8 54.Kf3 Kh4 55.Kg2 Kg5 56.Kg3 Kf6 57.Ng8 Kg7 58.Kh4 Kg6. erisonpassos – ibri67, kurnik, 2011.

7.b5 Nb8 8.c4 c6 9.a4 c5 10.d4 Qc7 11.Nbd2 d6 12.Rc1 Nbd7 13.Ng5 h6 14.Ngf3 h5 15.Ng5 Bh6 16.Ndf3 Nh7? (16...cd4 17.ed4 (worse is 17.Bd4 e5-/+) 17...e5 18.Qd2+=) 17.Nh7 (better is 17.dc5!? Ne5 18.c6+–) 17...Rh7+/- 18.dc5 dc5 19.Nh4 0-0-0 20.Bf3 Ne5 21.Qe2 Bf3 22.Nf3 Nf3 23.Qf3 f5?? 24.Rfd1+– e5 25.Rd8 Kd8 26.Rd1?? Kc8?? 27.Qd5 Rd7 28.Qe6 Kb7?? 29.Rd7 f4 30.Rc7 Kb8 31.Be5 a6 32.Rh7 Ka8 33.Qc6 (33.Qd5) 1–0. elsh1403 – neron35 (1630), kurnik, 2011.

7.b5 Nb8 8.h3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 0-0 12.c4 d6 13.d3 Nbd7 14.Nbd2 Qa8 15.Nh2 (15.Bc3 Qa2+=) 15...Qa3 (better is 15...Bg2!? 16.Bf3 Bf3 17.Qf3 e5-/+) 16.Bf3 Bf3 17.Ndf3 Ra8 18.Nd4 Ne5 19.Nc6 Nc6 (worse is 19...Nd3 20.Ne7 Kh8 21.Bf6 Bf6 22.Nd5+=) 20.bc6 Qc5 21.Qf3 e5 22.Rd1 Ra2 23.Nf1? Qa3–+ 24.Ng3 Ra1 25.Ra1 Qa1 26.Kh2 Qb1 27.d4 ed4 28.ed4 Qb4 29.Qe2 Nh5 30.Ne4?? Bd4 31.Ng5 Be5 32.g3 Qc5 33.f4 Nf4! 34.gf4 Bf4 35.Kh1 Bg5 36.Qe8 Kg7 37.Qe4 Qf2 38.h4 Qf1 39.Kh2 Bf4 40.Qf4 Qf4 41.Kg2 Qh4 42.Kf3 Qc4 43.Ke3 Qc6 44.Kd4 b5 45.Kd3 Qc5 46.Ke4 b4 47.Kd3 b3 48.Ke4 b2 49.Kd3 b1Q 50.Kd2 Qbb4 51.Kd3 Qcc3 52.Ke2 Qbb2 53.Kd1 Qcc1# (53...Qbd2#) 0–1. horacyad2010 – snikki, kurnik, 2011.

6.0-0 d6

7.a3 e6 8.d3 0-0 9.Nbd2 d5 10.c4 dc4 11.dc4 Ne4 12.Bg7 Kg7 13.Qc2 Nd2 14.Nd2 Qg5 15.Bf3 Bf3 16.Nf3 Qf6 17.Rad1 Nc6 18.Qe4 Ne7 19.Rd7 c5 20.b5 Nf5 21.h3 Rfd8 22.Rfd1 a6 23.a4 ab5 24.Rd8 Rd8 25.Rd8 Qd8 26.ab5 Qd7 27.Qe5 Kg8 28.Ng5 Qe7 29.Qb8 Kg7 30.Ne4 Qd7 31.Qb6 Qd1 32.Kh2 h5 33.Qc5 Qf1 34.Qe5 f6 35.Qf6 Kh6 36.Qg5 Kh7 37.Nf6 Kg7 38.Ne8 Kh7 39.Nf6 Kg7 40.Ne4 Qe2 41.Qf6 Kh7 42.Qe6 Qb2 43.Nf6 Kh6 44.Ng8 Kh7 45.Qe7 Qg7 46.Qg7 Kg7 47.Ne7 Ne7 48.f3 1–0. chocobom – polska70, kurnik, 2012.

7.c4 a6 8.d4 Qd7 9.a4 c5 10.b5 a5 11.Nc3 cd4 12.ed4 Qc7 13.d5 Nbd7 14.Rc1 Nc5 15.Qc2 Bc8 16.Rfe1 Bf5 17.Qd1 0-0-0 18.Nh4 Bd7 19.Nf3 Bg4 20.Nd4 Bd7 21.Nf3 Rde8 22.Ng5 Rhf8 23.Nf3 h6 24.Nd4 h5 25.Nc6 Bc6? 26.dc6 h4 27.Nd5 Qd8?? 28.Bf6 ef6 29.Bf3 Re1 30.Qe1 Re8?? 31.Qd1 Re5 32.Bg4 f5 33.Bf3 Qe8? 34.h3 Bh6? 35.Rc2?? Re1–+ (35...Re1 36.Kh2 Rd1 37.Bd1 Qe5 (37...Na4?! 38.Re2 Qd8 39.Re7=) 38.g3 hg3 (38...Na4?! 39.Re2 hg3 40.fg3=) 39.fg3 Ne4–+ (39...Na4 40.Re2 Qh8 41.Ba4+/-)) 0–1. elsh1403 – neron35, kurnik, 2011.

7.c4 Nbd7 8.Nc3 0-0 9.d3 e5 10.Nd2 (10.d4 a5 11.b5 Re8+=) 10...Ne8 (10...Qe7 11.Bf3 c6 12.b5+=) 11.Bf3+= Bf3 12.Qf3 f5 13.Qc6 a6 (13...a5 14.a3+=) 14.Ne2 (14.f4 ef4 15.ef4 h6+=) 14...g5 (14...Nef6 15.d4+=) 15.Ng3 (15.f4 gf4 16.ef4 Kh8+/-) 15...f4 (15...a5 16.a3+/-) 16.Nh5 (16.Nge4 Bf6+/-) 16...Bh8 (16...Ndf6 17.Ng7 Ng7 18.ef4 gf4 19.d4+=) 17.ef4 (17.Ne4 h6+/-) 17...gf4+= 18.g3 Rf5 19.Qd5 Rf7 20.gf4 Ndf6 21.Nf6 Nf6 22.Qc6 ef4 23.Kh1 Ng4 24.Bh8 Kh8 25.Nf3 Rb8 26.h3 Nh6 27.Rae1+= Qc8 28.Kh2 Qf5+= 29.Qe4 Rg8 30.Qd4 Qf6 31.Rg1 Rg1 32.Qf6+= Rf6 33.Kg1 Kg7 34.Re7+/- Rf7 35.Re8 Rf8 36.Rf8 Kf8 37.Nd4 Ke7 38.Ne2 Nf5 39.Nf4+/- Nd4 40.a4 c6 41.Kg2 Nc2 42.b5+/- ab5 43.ab5 cb5 44.cb5 Na3 45.Nd5 Ke6 46.Nb6 Nb5 47.Kf3 (47.Kf3 d5 48.Kg4+/-) 1–0. Gimeno Higueras,Roberto – Campayo Hernandez,Juan, 25. International Chess Festival, 2005.

7.c4 Nbd7 8.Nc3 0-0 9.d3 e6 10.Qc2 Qe7 11.Rac1 (11.a3 c5=) 11...Rae8 (11...c5 12.bc5 dc5 13.Rfd1=) 12.a4 (12.b5 c5+=) 12...Qd8 (12...c5 13.Qb3=) 13.a5 ba5 14.b5 (14.ba5 a6+=) 14...Nh5 (14...c5 15.Ra1=) 15.Ra1+= f5 (better is 15...c6!?+=) 16.Ra5+– c6 17.Ra7 Qb6 18.Rfa1 f4 (18...Nhf6 19.Nd4 cb5 20.Ndb5+– (worse is 20.cb5 f4+–)) 19.bc6 (19.e4 Rb8+–) 19...Bc6 20.e4 (20.R1a6 Qb8+–) 20...Rb8 21.Nb5 Bb5 22.Bg7 Ng7 23.cb5 Rfc8 24.Qb2 Rb7 25.R7a6 Qb5+/- 26.Qb5 Rb5 27.Rd6 Rb7 28.d4 Kf8 29.Ba6 Ra8 30.Re1 Rc7 31.Bb5 Ke7 32.Rd7 Rd7 33.Bd7 Kd7 34.Kf1 Ne8 35.Ke2 Ra2+= 36.Nd2 Nd6= 37.Kd3 Ra3 38.Kc2 Ra2 39.Kd3 Ra3 40.Ke2 Ra2 41.f3 Nc4 42.Rd1 Ne3 43.Rb1 Nc4 44.Rd1 Ne3 45.Rb1 Nc4 46.Kd3 Nd2–+ 47.Rb7 Kc6 48.Re7 Nb1 49.Re6 Kb5 50.e5 Rg2 51.Re8 Rd2 52.Ke4 Nc3 53.Kf4 Rd4 54.Kg5-/+ Rd7 55.e6 Rb7 56.Rd8+= Kc6 (better is 56...Kc4!?-/+) ½–½. Kruck,D – Braginsky,A, Hamburg, 2001.

7.c4 Nbd7 8.Nc3 0-0 9.d4 c6 (9...e5 10.d5+=) 10.a4 (10.a3 c5+=) 10...c5= 11.bc5 dc5 12.d5 Re8 (12...Bc8 13.a5+=) 13.Qc2 Qc7 (13...a6 14.Rfb1+=) 14.Nb5 (14.Rfb1 Reb8+=) 14...Qd8 15.Bd3 (15.a5 a6 16.Nc3 e6+=) 15...a6 16.Nc3 Qc7 (16...Rb8 17.e4+=) 17.e4 (17.a5 ba5 18.Ne4 Ne4 19.Bg7 Nf2 20.Qf2 Kg7+/-) 17...Rad8 (17...Ng4 18.Be2+=) 18.Rfe1 (18.a5 ba5 19.Ne2 e6+=) 18...Kh8 (18...Ng4 19.a5+=) 19.Rad1 (19.a5 e5+/-) 19...e6 (19...Ng4 20.Ne2+=) 20.Bc1 (20.Ne2 ed5 21.cd5 c4+/-) 20...e5 (20...Ng4 21.Be2+=) 21.Ne2 Nf8 22.Rf1 h6 23.Nh4 Kh7 24.f4 N6d7 25.g4 f6 26.Rf3 g5 27.fg5+/- fg5 28.Nf5 Ng6 29.Rdf1 Ndf8 30.Neg3 Rd7? 31.Nh5 Bh8 32.Qf2 Rf7 33.h4 Nh4 34.Nh4 Rf3 35.Nf3 Ng6 36.Ne1 Rf8 37.Qe2 Nf4 38.Nf4 gf4 1–0. Kucharkowski,Jens – Enderlein, Freital, 1988.

7.c4 Nbd7 8.d4 e5 9.Nbd2 e4 10.Ng5 Qe7 11.d5 c6? (better is 11...0-0 12.a3 a5+=) 12.dc6+– Bc6 13.Qc2 (better is 13.b5 Bb7 14.Nge4+/-) 13...0-0+= 14.a4 a6 15.a5 ba5 16.Ra5 h6 17.Nh3 Rfc8 18.Qb3 d5 19.Rfa1 (19.cd5 Bb7 20.Nf4 g5+/-) 19...Rcb8 20.Ra6 Ra6= 21.Ra6 Rb4 22.Qa2 Nb6 23.Ba3+– Nc4? 24.Nc4 dc4 25.Rc6 Ra4 26.Be7 Ra2 27.Bf6 Bf6? 28.Rf6 Re2 29.Rc6?? Rc2 30.g3 Kg7 31.Nf4 g5 32.Nd5 h5 33.Nb4 Rc3 34.Nd5 Rc2 35.Nb6 c3 36.Nd5 Rc1 37.Kg2 c2 38.Nb4 h4 39.Rc2 Rb1 40.Nd5 Rb5 41.Nc3 Rb4 42.Rd2 1–0. elsh1403 – maxxx1799, kurnik, 2011.

7.d3 e5 8.Nbd2 Nc6 9.b5 Ne7 10.c4 0-0 11.a4 a5 12.h3 Qd7 13.Qc2 Rae8 14.Rad1 h6 15.d4 e4 16.Nh2 Nh7 (16...c6 17.c5 (worse is 17.Ne4 Ne4 18.Qe4 cb5+=) 17...cb5 18.Bb5+/-) 17.Nb3 f5= 18.c5 Bd5 19.Bc4 Qe6 20.cd6 cd6 21.Bd5 Qd5 22.Rc1 Rc8 23.Qd1 Rc1 24.Bc1 Rc8 25.Nd2 Qe6 26.Ba3 d5 27.Be7 Qe7 28.Qb1 Bf8 29.Rc1 Qd7 30.Rc8 Qc8 31.Qb3 Nf6 32.Nhf1 Bb4 33.Nb1 Qc4 34.Qd1 Kf7 35.Nbd2 Qc3 36.Nb1 Qc4 37.Nbd2 Qd3 38.Qc1 Bc3 39.Nb1 Bb4 40.Qc7 Ke6 41.Qe5 Kf7 42.Qc7 Ke6 43.Qb6 Bd6 44.Qa5 Qb1+= 45.b6 Nd7 46.Qc3? Qb6–+ 47.a5 Qa6 48.Nd2 Bc7?? 49.Nb3?? g5?? 50.Qb4?? Qc4 51.Qb7 Ba5?? 52.Na5= Qc1 53.Kh2 Qa3 54.Qc6 Ke7 55.Nb7+/- Qb4 56.g3 f4 (56...f4 57.Qd5 fe3 58.Qe4 Kf6 59.Qf3 Kg7+–). ejdrzej (1715) – janomiso (1730), kurnik, 2011.

5.Be2 e6

6.0-0 0-0 7.h3 Bb7 8.c4 d6 9.d3 c5 10.b5 d5 11.Nbd2 Nbd7 12.a4 Qe7 13.Rb1 Rad8 14.d4 dc4 15.Nc4 cd4 16.Nd4 Nc5 17.Qc2 Be4 18.Qc1 Bb1 19.Qb1 Na4 20.Nc6 Qc5 21.Nd8 Nb2 22.Qb2 Rd8-/+ 23.Qa2 Nd5 24.Qa7? Qb5 25.Rd1-/+ Nc3?? 26.Rd8+– Bf8 27.Bf1 Qb1 28.Rd2 Qc1 29.Qd7 Nd5 30.Rd5 ed5 31.Qd5 Bc5 32.Ne5 Kg7 33.Qf7 Kh6 34.Ng4 Kg5 35.Qf6 Kh5 36.Qg7 Be3 37.Qh7 Bh6 38.Nf6 Kg5 39.Ne4 Kf5 40.Ng3 Ke5 41.Qe7 Kd5 42.Qd7 Kc5 0–1. horacyad2010 – federer18, kurnik, 2011.

6.0-0 Bb7 7.d4 Qe7 8.a3 Nc6 9.b5 Na5 10.c4 d6 11.Nc3 0-0-0 12.Rc1 Ng4 13.h3 Nf6 14.Qc2 h6 15.Na4 g5 16.c5 dc5 17.dc5 Rd7?? (better is 17...Kb8+/-) 18.c6 Bc6 19.bc6 Rd6 20.Ba6 Kb8 21.Nd4 g4 1–0. elsh1403 (1615) – swoichniebije, kurnik, 2011.

4.e3 c6

5.a3 0-0 6.h3 a5 7.b5 d6 8.a4 e5 9.c4 Re8 10.Be2 Nbd7 11.0-0 Nf8 12.d4 ed4 13.Nd4 c5 14.Nb3 b6 15.Qc2 Bb7 16.N1d2 d5 17.cd5 Nd5 18.Bg7 Kg7 19.Bf3 Qf6 20.Nc4 Rab8 21.Rad1 Nb4 22.Qb2 Bf3 23.Qf6 Kf6 24.gf3 Ke7 25.f4 Na2 26.Rd2 Nc3 27.Rd3 Na4 28.Rfd1 Red8 29.Nd6 Ne6 30.f5 Nb2 31.fe6 Nd1 32.Rd1 Rd6 33.Rd6 Kd6 34.ef7 Rf8 35.Nd2 Rf7 36.Nc4 Kc7 37.f4 Rf8 38.Kf2 a4 39.h4 Rd8 40.Ke2 Ra8 41.Na3 Rd8 42.e4 Rd4 43.Ke3 Rb4 44.Nc2 a3 45.e5 a2 46.e6 Kd6 47.Nb4 cb4 0–1. Abdullaevich (1640) – james_moriarty (2145), lichess.org, 2015.

5.a3 d5 6.Be2 Bg4 7.d3 Nbd7 8.Nbd2 0-0 9.h3 Bf3 10.Nf3 Qc7 11.c4 dc4 12.dc4 a5 13.0-0 ab4 14.ab4 Ra1 15.Qa1 Rd8 16.Rd1 Nf8 (16...c5 17.bc5 Nc5 18.Rd8 Qd8 19.Bd4+=) 17.Rd8 Qd8 18.Nd4 N6d7 19.c5 Qc7? (19...e5 20.Nf3+/-) 20.Qa7 (better is 20.Nc6 Bf6 21.Bf6 Nf6 22.Ne5+–) 20...Qb8+= 21.Qa1 Qc7 22.Nc6! Qc6 (22...bc6 23.Bg7 Discovered attack; 22...Qc6 23.Bg7 Discovered attack) 23.Bg7 Ne6 (23...Qc7 24.Bh6 e5 25.Qa8+–) 24.Bc3 Qc7 25.Bf3 Nd8 26.Qa8 Kf8? (26...Nf8+–) 27.Bb7 Ke8 (27...f6 28.Ba6+–) 28.Ba6 Nc5 (28...Kf8 29.Bb5 Nf6 30.Be2+–) 29.bc5 Qc5 30.Bd4 Qc1 31.Kh2 (31.Bf1 Qc7+–) 31...Qc7 32.f4 f6 33.Bb5 Kf8 (33...Kf7 34.Qd5 Kg7 35.g4+–) 34.Qa6 (34.Bc3 Kf7 35.Ba5 Qc5+–) 34...Nf7 (34...Kg7 35.Bc4+–) 35.Qc6 (35.Bc4 Nd6 36.Bd5 Kg7+–) 35...Qb8 36.Bc4 Nd6 37.Bc5 Kg7 (37...Qe8 38.Bd5+–) 38.Bd6 (better is 38.Qd7 Qe8 39.Qe8 Ne8 40.Be7+–) 38...ed6 (38...Qd6 39.Qc8 g5+–) 39.Qd7 Kh6 40.Qe7 f5 (40...Qb2 41.Bg8 Qg2 42.Kg2 d5 43.Qh7) 41.g4 fg4 42.hg4 Qh8 (42...Qc7 43.g5 Kh5 44.Kg3 Qb7 45.Be2 Qf3 46.Bf3) 43.Kg3 (43.Be2 Qe5 44.g5 Qg5 45.fg5) 43...Qb2 (43...Qe5 44.Qf8 Qg7 45.g5 Kh5 46.Be2) 44.Qf8 (44.g5 Kh5 45.Qh7) 44...Qg7 45.g5 Kh5 46.Be2 1–0. Miranda Neto,Jayme Amorim (2105) – De Souza,G Ferreira (2065), Torneio Auriberto Ticianeli de Xadrez C, 2015.

5.c4 a5 6.b5 0-0 7.Be2 d5 8.0-0 cb5 9.cb5 a4 10.Na3 Nbd7 11.Rc1 Ne4 12.Qc2 Qb6 13.Bg7 Kg7 14.Qb2 Qf6 15.Qf6 Kf6 16.d4 Nb6 17.Ne5 Be6 18.f3 Nd6 19.Nd3 Kg7 (19...Nbc4 20.Nc4 Nc4 21.e4+=) 20.Nc5+= Rfc8 21.Rc3 h5 22.Rfc1 Bf5 23.g3 g5 24.Rf1 (24.Kf2 Kf6+=) 24...f6 25.h4 gh4 26.gh4 Kf7 27.Kf2 Rc7 28.Rcc1 (28.Rfc1 e5=) 28...e6 (28...Bg6 29.Ne4 Ne4 30.fe4-/+) 29.Rg1 (29.Ne4 Rd7 (worse 29...Ne4 30.fe4 Rc1 31.Rc1 Be4 32.Rc7 Kg6 33.Rb7+/-) 30.Nd6 Rd6+=) 29...Rcc8 (29...Rac8!?=) 30.Rg2+= Rab8 31.Rcg1 Rg8 32.Rg8 Rg8 33.Rg8 Kg8 34.Bd1 e5 35.Ba4 Na4 36.Na4 Kf7 37.b6 ed4 38.ed4 Ke7 39.Nc3 Be6 40.Nab5 Nf5 (40...Nc4 41.Na4+=) 41.Nc7 (41.a4!? Bd7 (41...Nh4?? 42.a5+-) 42.a5 Bc6+-) 41...Kd6+/- 42.Ne8 (better 42.N3b5!? Kc6 43.a4+- (43.Ne6?! Kb5 44.Nf4 Kc4+/-)) 42...Ke7= 43.Nc7 Kd6 44.Ne8 (better 44.N3b5!? Kc6 45.a4+- (45.Ne6?! Kb5 46.Nf4 Kc4+/-)) 44...Ke7= 45.Nc7 ½-½. Philippe,Guillaume (2320) - Okhotnik,V (2360), 7th ch-Francophonie, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 c6 4.Bb2 Bg7)

5.Bc4 a5 6.a3 ab4 7.ab4 Ra1 8.Ba1 d5 9.Be2 0-0 10.0-0 Qb6 11.Bc3 Na6 12.Ba6 Qa6 13.d3 Bg4 14.Nbd2 Ra8 15.Qa1 Bf3 16.gf3 b5+= 17.Qa6 Ra6 18.Ra1 Ra4 19.Nb3 Nd7 20.d4 Ra1 21.Na1 Kf8 22.Kf1 Ke8 23.Ke2 e6 24.Nb3 Bf8 25.f4 Bd6 26.h3 Ke7 27.f3 Nb6 28.Be1 f6 29.c3 Nc4 30.Nc1 Kf7 31.Nd3 g5 32.fg5= fg5 33.Nc1 h5 34.Nb3 Bc7 35.Bf2 Kf6 36.Nc5 Bd6 ½–½. Tumurbator,Purev (2270) – Markland,Peter Richard (2420), Skopje ol (Men) fin–B, 1972.

5.Bc4 d5 6.Bb3 Nbd7 7.0-0 0-0 8.Qe2 Qc7 9.d4 b6 10.c4 Bb7 11.cd5 cd5 12.Nc3 Qd6 0–1. Jokmin,Alex – Raines,David, 29. LSS No Engine Cup Preliminary, 2010.

5.d3 d5 6.Be2 Be6 7.0-0 Nbd7 8.Nbd2 0-0 9.h3 Qc8 10.Rc1 b5 11.c4 dc4 12.dc4 bc4 13.Nc4 Bc4 14.Rc4 Nb6 15.Rc2 Nbd5 16.a3 Qf5 17.Nd4 Qe4 18.Nc6 Rac8 19.Rc4 Qe6 20.Na7 Rc4 21.Bc4 Qb6 22.Bd5 Qa7 23.Qd4 Qd4 24.Bd4 Nd5 25.Bg7 Kg7 26.Rd1 Nc3 27.Rd7 Re8 28.Kf1 e5 29.Rd3 Nb5 30.a4 e4 31.Rd5 Nc3 32.Ra5 f5 33.b5 Rb8 34.g3 Kh6 35.Ra6 Nd5 36.Rd6 Nb4 37.b6 Kg5 38.a5 h5 39.h4 Kh6 40.Rd4 Na6 41.Ke2 Rb7 42.Rd8 Kg7 43.Rd5 Nb4 44.Rb5 Nd3 45.a6 Rc7 46.a7 Rc2 47.Kd1 Rf2 48.a8Q Rf1 49.Ke2 Rf2 50.Kd1 Rf1 51.Kc2 Rf2 52.Kc3 Rf1 53.Qb7 Kf8 54.Rd5 Rc1 55.Kb3 Nc5 56.Kb2 Nb7 57.Rd7 Nc5 58.b7 Nd7 59.Kc1 Ke8 60.Kb2 Kd8 61.Kc3 Kc7 62.b8Q Kb8 63.Kd4 Kc8 64.Kd5 Kd8 65.Ke6 Nf8 66.Kf7 Nd7 67.Kg6 Nc5 68.Kf5 Ke7 69.g4 hg4 70.Kg4 Kf6 71.Kf4 Kg6 72.Kg4 Kh6 73.Kg3 Kh5 74.Kh3 Ne6 75.Kg3 Nc5 0–1. Phomopsis (1735) – lutfi3344 (1775), lichess.org, 2020.

5.d4 0-0 6.Bd3 Qc7 (6...a5 7.ba5 Qa5 8.Qd2+=) 7.c4 (7.Nc3 d5=) 7...b6 (7...a5 8.b5=) 8.Nbd2 (8.Nc3 Bb7+=) 8...Bb7 9.0-0 d6 10.Ng5 h6 11.Nge4 Nbd7 12.Rc1 (12.Qb3 a5=) 12...Rae8 (12...c5 13.Qa4=) 13.Qc2 (13.Qb3 c5+=) 13...Qb8 (13...c5 14.bc5 bc5 15.Rb1=) 14.f4 (14.Qa4 e5+=) 14...Qc7 (14...Ng4 15.Rf3+=) 15.Ng3 White intends f5 (15.Qb3 c5+=) 15...e6 (15...c5 16.bc5 bc5 17.d5+=) 16.e4 (16.Nf3+=) 16...a6 (16...c5 17.bc5 bc5 18.d5+=) 17.f5 (17.e5 Ng4 18.Rce1 de5 19.de5 Rd8+/-) 17...ef5 (17...Ng4 18.fe6 Re6 19.Rf3=) 18.ef5 g5 (18...Ng4 19.fg6 Ne3 20.Qb1 Nf1 21.Rf1 fg6 22.Bg6 Rf1 23.Qf1+/-) 19.Nde4 (19.Rce1 c5 20.bc5 bc5+/-) 19...d5= 20.cd5 Rc8? (20...Nd5!? 21.Qd2 N7f6=) 21.a4 (better is 21.d6 Qb8 22.Qb3+–) 21...Nd5+= 22.Qd2 c5? (22...Rfe8!?+=) 23.dc5 (better is 23.bc5 bc5 24.Nh5+–) 23...bc5? (23...Bb2!? 24.Qb2 bc5 25.bc5 Nf4+–) 24.Bg7 (better is 24.f6 N5f6 25.Nf6 Nf6 26.Bf6+– (worse is 26.Rf6 Bf6 27.Bf6 Qc6+–)) 24...Kg7 25.bc5 Nf4 (25...Qe5 26.Nh5 Kh8 27.Bb1+–) 26.Rf2 (better is 26.Rf4 gf4 27.Nh5 Kg8 28.Nd6+–) 26...Nc5?? (better is 26...Rfd8 27.Nd6 Nc5 28.Nc8 Rd3 29.Nh5 Nh5 30.Qd3 Qh2 (30...Nd3?? 31.Rc7 Nf2 32.Rb7+–) 31.Kh2 Nd3+–) 27.Rc5+– (worse is 27.Nc5 Qe5 28.Ne2 Nd3 29.Nd3 Rc1 30.Qc1 Qd6+–) 27...Qc5 (27...Qb6 28.a5 Qa7 29.Qc3 Kg8 30.Nf6 Kh8 31.Nd7 Kh7 32.Nf8 Rf8+–) 28.Nc5 Nd3 29.Qd3 Rc5 30.Qd4 f6 31.Qc5 Rf7 (31...Re8 32.Qc7 Kf8 33.Rd2 Re1 34.Kf2 Re8 35.Nh5 Re7 36.Rd8 Kf7 37.Qc4 Bd5 38.Qd5 Re6 39.Qe6) 32.Re2 Rd7 (32...h5 33.Qd6 h4 34.Nh5 Kh7 35.Nf6 Rf6 36.Qf6 Bd5 37.Re8 Bg8 38.Qg6 Kh8 39.Rg8) 33.Re7 Re7 (33...Kh8 34.Rd7 Kg8 35.Rb7 a5 36.Qc8) 34.Qe7 Kg8 (34...Kh8 35.Nh5 Bg2 36.Qg7) 35.Nh5 Bg2 36.Qg7 1–0. allanchessw (1695) – mythosellipseal8, gameknot.com, 2018.

5.d4 Qb6 6.a3 a5 7.c4 ab4 8.c5 Qc7 9.ab4 Ra1 10.Ba1 b5 (10...0-0 11.Bd3=) 11.Nc3 d5 12.Be2 0-0 13.0-0 Bg4 14.Nd2 (14.Bb2 Na6=) 14...Be2=+ 15.Ne2 Nbd7 16.f4 Ra8 17.Bb2 Ng4 18.Qb3 h5 (18...Ndf6 19.Ng3=) 19.h3 (19.Re1 h4=) 19...Nh6=+ 20.Nf3 Nf5 21.e4 de4 22.Ng5 e6 23.g4 (23.Ne4!? Nf6 24.Nf6 Bf6 25.Ra1 Ra1 26.Ba1=+) 23...hg4-/+ 24.hg4 Nh6 25.Ne6 fe6 26.Qe6 Nf7 27.Qg6 Ra2 28.Bc3 Re2 29.d5 Nde5 (29...cd5 30.Qg7) 30.fe5?? (better is 30.Be5 Ne5 31.Qe8 Kh7 32.Qh5 Kg8 33.Qe8 Kh7 34.Qh5 Kg8 35.Qe8=) 30...cd5–+ 31.Ra1 Qb8 32.Qc6 Ne5 33.Qd5 Kh7 34.Ra8 Nf3?? (34...Qc7 35.Qg8 Kh6 36.Qe6 Ng6–+) 35.Kf1+– Rf2 36.Kf2 Qh2 37.Ke3 Bh6 (37...Qg1 38.Kf4 Bh6 39.g5 Bg5 40.Ke4 Qe3 41.Kf5 Qf4 42.Ke6 Qe3 43.Be5 Qe5 44.Qe5 Ne5 45.Ke5+–) 38.g5 Qg1 39.Ke2 (39...Qg2 40.Kd1 Qf1 41.Kc2 Qd3 42.Qd3 ed3 43.Kd3 Ng5 44.c6+–) 1–0. Josefsson,K – Langer,W, corr ICCF, 1990.

5.Be2 b6 6.0-0 e6 (6...0-0 7.c4=) 7.c4 0-0 8.a3 d5 9.d4 Bb7 10.Nbd2 Nbd7 11.a4 dc4 12.Nc4 Qc7 13.a5 c5 14.a6 Bd5 15.bc5 bc5 16.Rc1 Qd8 (16...Rab8 17.Qc2=) 17.Nce5 (17.Ba3 Qe7+/-) 17...Ne5 (17...Rc8 18.Nd3 Ne4 19.Nfe5 Ne5 20.de5=) 18.Ne5+= cd4 19.Bd4 Ne4 (19...Qd6 20.Qc2+=) 20.Bf3 (20.f3 f6 21.Nc6 Bc6 22.Rc6 Qd7+/-) 20...Qa5 (20...Rc8 21.Rc8 Qc8 22.Ng6 fg6 23.Be4 Be4 24.Bg7 Bg2 25.Bf8 Bf1 26.Qd4 Qf8 27.Kf1+=) 21.Ra1 Qc7 22.Ng4 h5 (better 22...f5!? 23.Rc1 Qd7 24.Bg7 Qg7 25.Be4 Be4+=) 23.Bg7 Kg7 24.Qd4 Kh7 (24...f6 25.Be4 hg4 26.Bd5+-) 25.Be4+- hg4 26.Bd5 Rad8? (26...ed5 27.Qd5 Rfd8 28.Qe4+-) 27.Qg4 (better 27.Qc4 Qc4 28.Bc4+-) 27...Rd5+/- 28.Rac1 Qb6 29.e4 Rh5 30.Qf4 Qa6 31.Rc7 Qa5? (better 31...Kg7+/-) 32.Rf7+- Rf7 33.Qf7 Kh6 34.Qf8 Kh7 35.Rd1 Qe5?? (better 35...Qc7 36.g3 Rb5+-) 36.Rd7 (36.Rd7 Qg7 37.Qg7) 1-0. carlos78 (2165) - Rummstein (2020), Rated Blitz game, lichess.org, 2015.

5.c4 Qb6

6.a3 a5 7.b5 d5 8.Nc3 dc4 9.a4 Be6 10.Ng5 Bd5 11.Rb1 0-0 12.e4 h6 13.ed5 hg5 14.dc6 bc6 15.Qf3 cb5 16.Nb5 Qe6 17.Be2 Na6 18.0-0 Rfc8 19.Rfe1 Qd7 20.Bc4 Qg4 21.Bf7 Kf8 22.Qg4 Ng4 23.Bd5 Bb2 24.Ba8 Ra8 25.Rb2 Nc5 26.Rc2 Nd3 27.Re2 Rd8 28.f3 Nf6 29.Rc7 Nd5 30.Ra7 Rc8 31.Nc3 Nc3 32.dc3 Rc3 33.g3 1–0. Cepukaitis – Vladimirov, Leningrad 1967. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 c6 5.c4 Qb6)

6.a3 d6 7.d4 0-0 8.Be2 c5 9.b5 cd4 10.Bd4 Qa5 11.Bc3 (11.Nbd2 e5 12.Bb2 Bf5=) 11...Qc7 12.0-0 Be6 Attacks the backward pawn on c4 13.Nbd2 Nbd7 14.Nd4 Nc5 15.Ne6 Ne6 16.Rc1 Rac8 17.Nb3 Rfd8 18.Ba5 b6 19.Bc3 Qb8 20.Nd4 Nd4 21.Bd4 d5 22.cd5 Nd5 23.Bg7 Ne3 (23...Kg7!? 24.Rc8 Qc8+=) 24.Rc8+/- Qc8 (24...Nd1?? 25.Rb8 Rb8 26.Be5+–) 25.Qa1 Nf1 26.Bh6 f6 27.Qf1 Kf7 (27...Qc3+/-) 28.Qc1 (better is 28.Bc4 e6 29.Be3+/-) 28...Qc1= 29.Bc1 Rc8 30.Be3 Rc3 31.Bf3 (31.a4 Ra3=) 31...Ra3 32.g3 e5 33.Bc6 Ke6 34.Kg2 Kd6 35.Bh6 Rc3 36.Bf8 Ke6 37.h4 (better is 37.Bb7!?+=) 37...a5-/+ 38.h5 a4 39.Bf3? (better is 39.Be4–+) 39...a3 40.Bg4 (40.Bb4 Rb3 41.Ba3 Ra3–+) 40...f5 41.hg6 0–1. Andrade,Leo Pasqualini De (1825) – Neri Junior,J A (1980), Championship Brasileiro Amador, 2011. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 c6 5.c4 Qb6)

5.c4 d5

6.d4=.

6.cd5 cd5 7.Be2 0-0 8.0-0 Qd6 9.b5 Bg4 (9...Ne4 10.Ba3 Qb6 11.Nc3 Bc3 12.dc3 Nc3 13.Qc2 Ne2 14.Qe2+=) 10.d4 (10.Ba3 Qd7 11.Nc3 Ne4=) 10...Rc8 11.a4 (11.Nc3 Nbd7=) 11...Qd8 (11...Nbd7 12.h3 Bf5 13.Ba3=) 12.Qb3 Nbd7 13.a5 e6 14.h3 Bf3 15.Bf3 Ne8 (15...Ne4 16.Be4 de4 17.Nc3=) 16.e4 (16.a6 Rab8=) 16...de4= 17.Be4 Rab8 18.Bf3 Nd6 19.Rd1 Nf5 Attacking the isolated pawn on d4 20.Ra4 Nf6 21.Nc3 Ne7 (21...Nh4 22.Be2=) 22.Ne2 (22.a6 Nfd5 23.ab7 Rb7 24.Rda1=) 22...Nfd5= 23.Ng3 b6 24.a6 Rc7 25.Rc4 Rc4 26.Qc4 Rc8 27.Qd3 Qd7 28.Qb3 Rc7 29.Be4 Bh6 30.h4 Qc8 31.Ne2 Qd8 32.h5 Nf6 33.Bf3 Ned5 34.Ba3 (better is 34.hg6!? hg6 35.Nc1=) 34...Nh5-/+ 35.Bh5 gh5 36.Qg3 Qg5 37.Rd3 (37.Qd6 h4 38.Rd3 Kg7 39.Qf8 Kg6-/+) 37...Qg3 38.Rg3 Bg7 39.Bd6 Rc2 40.Nf4 Nf4 (40...h4!? 41.Rg5 h6-/+) 41.Bf4+= h4 42.Rd3 Rc8 (42...Rb2!? 43.Bb8 Rb1 44.Kh2 Rb5+=) 43.d5+= Rd8?? (better is 43...e5 44.Bg5 Kf8+=) 44.de6+– Rd3 (44...Re8 45.Rd7 Re6 46.Ra7 Kf8+–) 45.e7 Rd1 (45...Bf6 46.e8Q Kg7 47.Qe4 Rd1 48.Kh2+–) 46.Kh2 Re1 (46...Bf6 47.e8Q Kg7 48.Qa8+–) 47.Be3 Be5 48.g3 Bg3 (48...hg3 49.Kg2 Kg7+–) 49.Kg2 1–0. Graf,Felix (2475) – Strunski,Andreas (2350), Barcelona ESP, 2014. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 c6)

5.c4 d6

6.a4 Nbd7 7.Be2 0-0 8.0-0 e5 9.h3 Qc7 10.b5 d5 11.cd5 cd5 12.Na3 b6 13.Rc1 Qb8 14.Qb3 Nc5 15.Rc5 bc5 16.Be5 Qb7 17.Qb2 Ne8 18.Bg7 Ng7 19.Nc2 Be6 20.Ne5 a6 21.Qc3 ab5 22.Bb5 c4 23.Bc6 Qc7 24.Ba8 Ra8 25.Ra1 Ne8 26.Nf3 h6 27.Ncd4 Bd7 28.Nb5 Qc5 29.Nfd4 Nf6 30.d3 Bb5 31.ab5 Ra1 32.Qa1 cd3 33.Qb2 Ne4 34.b6 d2 35.b7 1–0. Abdullaevich (1630) – IVS_POMPEI (1745), lichess.org, 2018.

6.d4 0-0 7.Nbd2 (7.Bd3 c5=) 7...Qc7 (7...c5 8.bc5 dc5 9.Be2=) 8.Be2 (8.Bd3 c5=) 8...Nbd7 (8...c5 9.a3=) 9.0-0 e5 (9...c5 10.Qb3+=) 10.de5 (10.Qc2 ed4 11.Nd4 Re8+=) 10...de5= 11.c5 (11.e4 Rd8=) 11...b6 (11...a5 12.a3=) 12.cb6 (12.e4 bc5 13.bc5 Nh5=) 12...ab6 13.Qb3 Bb7 (13...Ba6 14.Ba6 Ra6 15.Rfc1=) 14.Rfd1 h6 (14...c5 15.Bc4=) 15.Rac1 (15.a4 e4 16.Nh4 Kh7+=) 15...c5 (15...e4 16.Nh4 Kh7 17.f3+=) 16.Bc4 (16.a4 e4 17.Nd4 Bd5=) 16...Bc6 (16...e4 17.Ne1=) 17.b5+= Bb7 (better is 17...Bf3!? 18.gf3 Rad8+=) 18.Nh4+– Kh7 (18...Nb8 19.Ng6 Re8 20.Qc2+–) 19.Bf7 g5 20.Bg6 (20.Nf5 g4+–) 20...Kh8 21.Nf5 Rad8 22.Qc2 Bd5 23.a3 Nb8 24.e4 Bf7 25.Bf7 Rf7 26.Nc4 Nbd7 27.Rd6 Bf8 28.Rd2 Ne8?? 29.Rcd1 Rb8 30.Rd7! Rd7 31.Be5 Qe5 32.Ne5 (32...Rd1 33.Qd1+–) 1–0. Kliman,Daniel – Granara Barreto,Sebastian A, URU–ch sf–C Montevideo, 2003.

6.d4 Bg4 7.Nbd2 Nbd7 8.h3 Bf3 9.Nf3 Qc7 10.Bd3 0-0-0 11.Rc1 h5 12.0-0 Bh6 13.Re1 g5 14.d5 g4 15.Nh4 gh3 16.g3 Kb8 17.Nf5 Bf8 18.Kh2 e6 19.de6 fe6 20.Nd4 Re8 21.Qf3 Bg7 22.Ba1 Ne5 23.Qh1 Nd3 24.Re2 Nc1 25.Qc1 Ng4 26.Kg1 Bd4 27.Bd4 h2 28.Kh1 e5 29.Bc3 Qf7 30.Be1 Qf3 0–1. barborski (1625) – selua30, kurnik, 2012.

6.d4 Bg4 7.Be2 h5 8.Nc3 Nbd7 9.h3 Bf3 10.Bf3 Qc7 11.0-0 g5 12.Rc1 g4 13.hg4 hg4 14.Bg4 Ng4 15.Qg4 Bf6 16.Ne4 0-0-0 17.Nf6 ef6 18.g3 Kb8 19.d5 Rdg8 20.Qf3 Ne5 21.Qf6 Qd7 22.Be5 de5 23.Qe5 Ka8 24.Qe4 Qh3 25.Qg2 Qg4 26.dc6 Qc8 27.cb7 Qb7 28.c5 Qg2 29.Kg2 Rg4 30.a3 f5 31.Rh1 Rd8 32.Rcd1 Re8 33.Rd4 Rd4 34.ed4 Re2 35.d5 Rd2 36.d6 Rd3 37.Rh5 Ra3 38.c6 Kb8 39.Rh8 1–0. barborski (1605) – selua30, kurnik, 2012.

5.d4 d6

6.b5 Nbd7 7.Be2 0-0 8.0-0 Qb6 9.a4 a6 10.c4 cb5 11.cb5 Nd5 12.Nc3 Nc3 13.Bc3 Nf6 14.Qb3 Be6 15.Bc4 Bc4 16.Qc4 d5 17.Qb3 ab5 18.ab5 e6 19.Bb4 Rfc8 20.Bc5= Qd8 21.Ne5 b6 22.Bb4 Ne4 23.Nc6 Qd7? 24.Ra8 Ra8+= 25.Rc1 Kh8 26.g3 h5 27.Kg2 Nd6 28.Bd6 Qd6 29.Nb4 Bf8 30.Na6 Qa3?? 31.Qa3+– Ba3 32.Rc6 Bb2 33.Rb6 Kg7 34.Rb7 Bc1 35.Nc5 Bd2 36.Ne6 Kf6 37.Nf4 Rd8 38.Rb6 Kg5 39.h4 Kh6 40.Rb7 Kg7 41.Ne6 (41.Ne6 Kg8 42.Nd8+–) 1–0. xnajlepszyx – zboj79, kurnik, 2012.

6.Bd3 0-0 7.0-0 Nbd7 8.Nbd2 Re8 9.c4 Qc7 10.Rc1 e5 11.d5 c5 12.a3 b6 13.Qc2 Qd8 14.h3 Qe7 15.e4 Nh5 16.Be2 Nf4 17.Rce1 Nf6 18.Bc1 N6h5 19.Nh2 Qg5 20.Ndf3 Qg2# 0–1. mihai740609 – selos57, kurnik, 2012.

5.Be2 0-0

6.0-0 a5 7.b5 cb5 8.Bb5 b6 9.d3 Ba6 10.c4 Bb5 11.cb5 d5 12.Nbd2 Nbd7 13.d4 Qc7 14.Rc1 Qb7 15.Ba3 Rfe8 16.Rc6 e5 17.Bd6 e4+– (17...Rac8!? 18.Qc2 e4–+) 18.Rc7 Qc7 19.Bc7 ef3 20.Nf3 Rac8 21.Bf4 Ne4 22.Qb3 Rc4 23.Rd1 Rec8 24.Nd2??–+ ( 24.Re1+–) 24...Nd2 25.Rd2 a4??–+ ( 25...Rc3 26.Qc3 Rc3–+) 26.Qd3 Rc3 27.Qe2 Rc1 28.Rd1 Nf6 29.f3 R8c2 30.Qd3 Rd1 31.Qd1 Ra2 32.Qb1 Ra3 33.Qc1 Bf8 34.Qc8 h5 35.Bd6 Nh7?? ( 35...Ra1 36.Kf2 Nh7+–) 36.Ba3 (36...Kg7 37.Bf8 Nf8 38.Qa6+–) 1–0. Lothal – Wagner, Bernburg 1997.

6.0-0 b5 7.d3 Bb7 8.Nbd2 a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Na6 12.c3 Nc7 13.c4 Nfe8 14.Bg7 Ng7 15.Qb2 e6 16.Ra1 Qb8 17.Nb3 Rd8 18.Nc5 Bc8 19.h3 d6 20.Ne4 Nce8 21.c5 d5 22.Ned2 Qc7 23.Ra8 Bb7 24.Rd8 Qd8 25.e4 Qc7 26.e5 Qe7 27.d4 f6 28.ef6 Nf6 29.Ne5 Qc7 30.Bd3 Nfh5 31.g3 Nf5 32.Bf5 gf5 33.Ndf3 Nf6 34.Ng5 Bc8 35.Qe2 h6 36.Ngf3 Kg7+/- 37.Qe3 Ne4 38.Kg2 Bb7 39.Qa3 Qe7 40.Qa7 Kf6?? 41.Nd3 Ng5 42.Nfe5 h5? 43.h4 Nf7 44.Nf7 Qf7 45.Ne5 Qc7 46.Nd3 Qg7?? 47.Qb6 Qd7 48.Ne5 Qc8 49.f4 Ba8 50.Kf3 Ke7 51.Qa7 Kd8?? 52.Qf7 Qb7 53.Qe6 Qe7 54.Nf7 Ke8 55.Nd6 Kd8 (55...Kd8 56.Qc8#). ejdrzej (1750) – macles, kurnik, 2012.

6.0-0 d5 7.a3 Bg4 8.d3 Nbd7 9.Nbd2 a5 10.h3 Be6 11.c4 ab4 12.ab4 dc4 13.Ra8 Qa8 14.dc4 Bf5 15.e4+/- Ne4 16.Bg7 Kg7? 17.Ne4+– Be4 18.Qd7 e6 19.Qd4 (19...Kg8 20.Qe4+–) 1–0. market (2165) – sebo (1680), GameColony.com, 2002.

6.0-0 d6 7.d4 Bg4 8.c4 Ne4 9.h3 Be6 10.Nbd2 Nd2 11.Qd2 d5 12.Ng5 Bf5 13.g4 h6 14.gf5+/- hg5 15.fg6 f5 16.e4+– e6 17.e5 Bh6 18.h4 Kg7 19.Bc1 Kg6 20.hg5 Bg5 21.Qg5 Qg5 22.Bg5 Kg5 23.f4 Kg6 24.Kf2 Rh8 25.Rg1 Kf7 26.cd5 cd5 27.b5 Nd7 28.Rac1+/- Rac8 29.Bh5 Ke7 30.Rc8 Rc8+= 31.Rg7 Kd8 32.Rg6 Ke7 (32...Nf8 33.Rg8 Kc7 34.Ke3+=) ½–½. Ferreiro Montoya,Juan Ignacio (2265) – Franke,Thomas, San Sebastian op, 1996.

5.Be2 a5

6.a3 ab4 7.ab4 Ra1 8.Ba1 Qb6 9.b5 cb5 10.Nc3 b4 11.Nd5 Qd6 12.e4 Nc6 13.Nb6 Qc7= 14.Nc8 Qc8 15.e5 Nh5 16.0-0 (16.d4 Nf4 17.d5 Na5+=) 16...Nf4+= 17.Bc4 d5 (17...0-0 18.h3+=) 18.Bb3 (18.ed6!? Qg4 19.g3 Ba1 20.Qa1=) 18...Qg4 19.g3 e6 20.Ba4 0-0 21.Bc6 bc6 22.Nd4 Qd1 23.Rd1 c5 24.Nb3 (24.Nc6 Nh5 25.d4 c4+=) 24...c4-/+ 25.Nd4 Nh3 26.Kg2 Ng5 27.Nc6 Ra8 28.f3 h5 29.Nb4+= Bf8 30.Nc6 Ra2 31.h4 Nh7 32.Bc3 Rc2 33.Ra1 Bc5 34.Kh3 d4 35.Nd4 Bd4 36.Bd4 Rd2 37.Bc5 g5 38.Rc1+= Rd3 39.Kg2 gh4 40.gh4 c3 41.Bb4 Rd4 42.Bc3 Rh4 43.Ba5 Ra4 44.Bd8 Kg7 45.Kh3 Kh6 46.Rg1 Nf8 47.Rg8? Ng6–+ 48.Bf6 h4 49.Rb8 Kh5 50.Rb2 Ra3–+ 51.Rf2 Nf4 52.Kh2 Re3 53.Kh1 Ng6 54.Rg2 Rf3 55.Rg5 Kh6 56.Rg4 Rf5 57.Kg2 Kh5 58.Ra4 Nf4 59.Kh2 Kg4 60.Rb4 Rh5 61.Rb7 Rh7 62.Rb1 h3 63.Rf1 Rh5 64.Ra1 Nd3 65.Ra4 Kf5 66.Ra7 Kg6 67.Ra4 Nf2 68.Ra1? Nd3 69.Ra5?? Kf5 70.Ra7 Nf2 71.Rf7 Ng4 72.Kh1 Ne5 73.Be5 Ke5 74.Rf1 h2 75.Re1 Kd5 76.Rd1 Kc4 77.Rc1 Kd3 78.Rd1 Ke2 79.Ra1 e5 80.Ra2 Ke3 81.Ra3 Ke4 82.Rb3 Kf5 83.Rb8 Rh3 84.Rf8 Ke4 85.Rf1 Rh4 86.Re1 Kd4 87.Rd1 Kc3 88.Rc1 Kd2 89.Ra1 e4 90.Ra4 Kd3 91.Ra3 Kd4 92.Ra4 Ke5 93.Ra3 Rh6 94.Rb3 Kd4 95.Rb4 Kd3 96.Rb3 Kc4 97.Ra3 Re6 98.Ra8 e3 99.Ra2 Kd3 100.Ra3 Ke4 101.Ra1 e2 (101...e2 102.Kh2 Kf3 103.Rf1 ef1R 104.Kh3 Rh1#) 0–1. Enders – Uhlmann, DDR–ch, 1986. (=1.Nf3 Nf6 2.e3 g6 3.b4 c6 4.Bb2 Bg7 5.Be2 a5)

6.b5 0-0 7.c4 cb5 8.cb5 b6 9.0-0 Bb7 10.Nc3 d6 11.d4 Nbd7 12.Rc1 Rc8 13.Qb3 Rc7 14.Nd2 Qa8 15.Bf3 Rfc8 16.a4 Bf8 17.Bb7 Qb7 18.Ba3 Bg7 19.Rc2 Ne8 20.Rfc1 Ndf6 21.Ne2 e6 22.h3+= d5 23.Nf3 Rc2 24.Rc2 Nd7 25.Qb1 Rc2 26.Qc2 Qc7 27.Qc7 Nc7 28.g4 f6 29.Bd6 Ne8 30.Bg3 Kf7 31.Nc3 Bf8 32.h4 Nd6 ½–½. Schaefer,Dirk (2225) – Green,Michael (2230), remoteschach.de, 2004.

5.Be2 d5

6.0-0 0-0=.

6.0-0 Nbd7 7.c4 dc4 8.Bc4 e6 9.Ng5 0-0 10.Be6 fe6 11.Ne6 Qe7 12.Nf8 Nf8 13.Qb3 Be6 14.Qc2 Rd8 15.Nc3 (15.a3 Bf5 16.Qc4 Ne6 17.Bf6 Qf6=) 15...Qd7 16.d4 Bc4 17.Rfd1 Nd5 18.e4 Nb4 19.Qa4 Qe7?? (19...a5!? 20.Qa5 Nd3-/+) 20.Ba3 (better is 20.a3!? a5 21.ab4 ab4 22.Na2+/-) 20...c5= 21.dc5? Rd1 22.Rd1= Bc3 23.Bb4 Bb4 24.Qb4 Ba2 25.Ra1+/- Qe6 26.Qb7 a5 27.Qb2 Bc4 28.f3 Qa6 29.Qb4?? ab4–+ 30.Ra6 Ba6 31.Kf2 Bb5 32.Ke3 Nd7 33.Kd4 Nc5! 34.Kc5 b3 35.Kb5 b2 36.e5 b1Q (36...b1Q 37.Kc5 Qg1 38.Kd6 Qg2–+) 0–1. elsh1403 – mizujs, kurnik, 2011.

6.c4 dc4 7.Bc4 0-0 8.0-0 Nbd7 9.d4 Nb6 10.Be2 Nbd5 11.Qb3 Be6 12.Bc4 Ne4 13.Nbd2 Nd6 14.Bd5 Bd5 15.Qd3 Qb6 16.a3 a5 17.Bc3 a4 18.e4 Be6 19.Rfc1 Nb5 20.Nc4 Bc4 21.Qc4 Rad8 22.e5 e6 23.Rd1 Rd5 24.Bb2 Rfd8 25.Qc2 h5 26.h3 Qa7= 27.Rac1 Qb6 28.Qa4+/- Nd4?? 29.Nd4 Rd4?? 30.Bd4+– Rd4 31.Rd4 Qd4 32.Qd1?? Qe5 33.a4 Qb2 34.Rb1 Qc3 35.a5 Kh7? 36.Qb3 Qd2 37.Qd1 Qf4 38.g3 (38.g3 Qf5 39.Rb3 Qh3 40.Rd3+=) 1–0. lousse (1625) – hayk57 (1700), kurnik, 2011.

6.d3 0-0 7.0-0 a5 8.a3 Bf5 9.Nbd2 Nbd7 10.c4 Qc7 11.cd5 cd5 12.b5 Nc5 13.Rc1 b6? 14.d4+– Nfe4 15.Ba1 Qd6 16.dc5 Nc5 17.Bg7 Kg7 18.Nb3 Rac8 19.Nc5 Rc5 20.Qd4 f6 21.Rc5 bc5 22.Qb2 e5 23.Rd1 e4 24.Nd2 d4 25.Nc4 Qd7 26.ed4 Qe6 27.dc5 Bg4 28.Bg4 Qg4 29.Ne3 Qg5 30.c6 h5 31.h3 Rb8 32.Rd7 Kf8 33.a4 h4 34.Qa3 Kg8+– 35.Qe7 Qh6 36.c7 Rf8 37.Rd8 (37...Qg7 38.Qe6 Kh7 39.c8Q Rd8 40.Qd8 g5 41.Qf5 Qg6 42.Qdf6 Qf5 43.Nf5 e3 44.Qg7#) 1–0. Mazet,Pascal – Hurault,Frederic, Coupe de la Federati, 2002.

5.Be2 d6

6.0-0 0-0 7.d4 Qb6 8.a3 c5 9.dc5 dc5 10.b5 a6 11.c4 ab5 12.cb5 Bd7 13.a4 Rd8 14.Qc2 Bf5 15.Qb3 Bb1 16.Rab1 e6 17.Be5 Nbd7 18.Bg3 Ne4 19.Rfd1? (19.Bh4 Nc3 20.Bc4 Ra4 21.Be6 fe6 22.Bd8 Qd8 23.Qe6 Kh8 24.Rb2-/+) 19...Nc3–+ (19...Ng3?! 20.fg3 Qa5 21.Rbc1=) 20.Rd6?? (better is 20.Qc2–+) 20...Ne2 21.Kf1 Ng3 (21...Ng3 22.hg3 Qd6–+) 0–1. tadziczek – fatlum76, kurnik, 2012.

6.0-0 h5 7.c4 Bg4 8.d4 Nbd7 9.Nbd2 Qc7 10.h3 Bf3 11.Bf3 (11.gf3?! d5=) 11...0-0-0 12.b5 c5 13.a4 e5 14.a5 ed4 15.ed4 Kb8 16.b6 ab6 17.ab6 Nb6 18.Qb3 Rhe8 19.Bc3 cd4?? (19...Nfd7!?+=) 20.Ba5 (20.Bd4 Nbd7 21.Ra7+–) 20...Ng4?? (better is 20...Nfd7+/-) 21.Bb6+– Qe7 22.Bd8 Rd8 23.Rfb1 Rd7 24.hg4 d3 25.Ra5 hg4 26.Bg4 Rc7 27.Qa4 Rc6 28.Ra7 f5 29.Rab7 Qb7+– 30.Qc6 Qb1 31.Nb1 fg4 32.Qd6 Kc8 33.c5 d2 34.Nd2 Bc3 35.c6 g3 36.Qd7 (36.Qd7 Kb8 37.Qb7) 1–0. elsh1403 (1615) – papliss (1780), kurnik, 2011.

4.e3 Nc6

5.a3 b6 6.c4 Bb7 7.d4 d6 8.Be2 e6 9.Nbd2 0-0 10.Qc2 Ne7 11.0-0 c6 12.Rac1 d5 13.Rfe1 Rc8 14.g3 a6 15.Bf1 b5 16.c5 Re8 17.Ne5 Nh5 18.Bg2 f6 19.Nef3 Bh8 20.Nh4 Ng7 21.f4 Nef5 22.e4 Nh4 23.gh4 Qd7 24.Bh3 f5 25.e5 Qe7 26.Nf3 Nh5 27.Qd2 h6 28.Re2 Rf8 29.Rg2 Kh7 30.Kh1 Rg8 31.Rcg1 Rg7 32.Bc1 Rcg8 33.Qe2 Qf7 34.Be3 Bc8 35.Nd2 Qc7 36.Nf1 Qe7 37.Ng3 Ng3 38.hg3 h5 39.Qf2 Rf8 40.g4 hg4 41.Bg4 fg4 42.Rg4 Qf7 43.Qh2 Bd7 44.Rg5 Be8 0–1. barborski – gold67, kurnik, 2012.

5.a3 d6 6.Be2 0-0 7.0-0 e5 8.d3 a6 9.Nbd2 h5 10.c4 Re8 11.Qb3 Be6 12.Ng5 Nh7 13.Ne6 fe6 14.f4 Qh4 (14...ef4!? 15.Rf4 Bb2 16.Qb2 e5+/-) 15.fe5 Be5 16.Be5 Ne5 17.Nf3 Nf3 18.Rf3 (18.gf3?! Qg5 19.Kf2 e5=) 18...Ng5?? (18...Rf8 19.Raf1+/-) 19.Rg3?? (better is 19.Rf4 Nh3 20.gh3 Qh3 21.Rf3+–) 19...Rf8+= 20.Rf1 Rf1 21.Bf1 Rf8 22.e4?? Kh7 23.c5?? Qf4–+ 24.Qd1 Qf2 25.Kh1 Qf1 26.Qf1 Rf1# 0–1. exp2005 – dragan013, kurnik, 2012.

5.a3 e6 6.c4 Ne7 7.d4 0-0 8.Nbd2 c6 9.Bd3 d5 10.c5 b6 11.0-0 b5 12.Re1 Ng4 13.e4 h5 (13...de4 14.Ne4 a5 15.a4 ab4 16.ab5 Ra1 17.Qa1 cb5 18.Nd6+=) 14.ed5 (14.e5 a5+/-) 14...ed5 (14...Nd5 15.Nb3+=) 15.h3 Nf6 16.Nb3 Re8 17.Na5 Qc7 18.Ne5 Ne4 19.Be4 de4 20.Re4 Nf5? (20...Be6!?+/-) 21.Qd3 Be5 22.de5 Be6 23.Qc3 Rad8 24.Rae1 Rd7 25.f4 Red8 26.g4 Nh4?? 27.f5?? Rd3-/+ 28.Qc1 Nf3 29.Kf1 Ne1 30.Re1-/+ Rf3 31.Kg2? Rdd3?? 32.f6?? Rg3 33.Kf2 Rdf3 34.Ke2 Re3 35.Kf2? Rgf3-/+ 36.Kg2 Rg3 37.Kf2= Ref3 38.Ke2 hg4 39.Qh6 Re3! 40.Kd1 Qd7 41.Kc2 Qd3 42.Kc1 Re1# 0–1. lican – dedelso, kurnik, 2012.

5.b5 Nb4? 6.a3 (better is 6.e4+–) 6...Nbd5+= 7.c4 Nb6 8.Be2 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 0-0 12.Bf6 Bf6 13.0-0 d5 14.c5 Nd7 15.d4 e5 16.c6 bc6 17.bc6 Nb6 18.de5 Bg7 19.Qb3 Bg4 20.Nbd2 Re8 21.h3 Bf3 22.Nf3 Be5 23.Ne5 Re5 24.Bf3 Qd6 25.Rc1 Kg7 26.Be2 h5 27.Qc3 f6 28.Rd1 Kh6 29.Bf3 g5 30.e4! g4 31.hg4 hg4 32.Qe3 Kg7 33.Bg4 Re4? 34.Qe4!+– de4 35.Rd6 cd6 36.c7 Kg6 37.c8Q Nc8 38.Bc8 d5? 39.Bb7 f5 40.Bd5 Kg5 41.f3 e3 (41...e3 42.g3 f4 43.gf4 Kf4+–). emeryt85 – riza25, kurnik, 2011.

5.b5 Na5

6.c4 b6 7.Nc3 Bb7 8.Be2 e6 9.0-0 Qe7 10.a4 g5 11.d3 g4 12.Nd4 h5 13.Qc2 0-0-0 14.Ba3 Qe8 15.Bb4 e5 16.Nf5 Rg8? (16...Bf8!? 17.Ba5 ba5+/-) 17.Ba5 ba5 18.c5 Qe6 19.e4 Bf8 20.Rfd1 Bc5 21.d4 ed4-/+ 22.Nd4 Qe5 23.Nb3 Bd6 24.g3? h4 25.Na5 Ne4 26.Ne4 Be4 27.Qc4?? h3 28.Rac1+= Ba8 29.Bg4+/- Rg4 30.Qg4+– Qe2?? 31.Qh3 f5 32.Rd6 Qe4 33.Nc6! dc6?? 34.Rd8 Kd8 35.Qh8 Ke7 36.Qg7 (36.Qg7 Kd6 37.Qf8 Kd7 38.Qa8+–) 1–0. elsh1403 – tutugacacol, kurnik, 2011.

6.c4 c6 7.Nc3 cb5 8.Nb5 a6 9.Nbd4 0-0 10.Be2 Qc7 11.Qc2 d5 12.cd5+= Qc2 13.Nc2 Nd5 14.Bg7 Kg7 15.0-0 b5= 16.d4 Nc3 17.Bd3 Be6 18.Nb4 Rfc8 19.a3 Nc4 20.Ng5 Bd5 21.Rfc1= Na4?? 22.Nd5+– (22...e6 23.Nf4+–) 1–0. Wall,Bill – Faltron, Internet, 2002.

5.b5 Nb8

6.a4 a6 7.c4 ab5 8.cb5 c6 9.Ra3 0-0 10.Be2 d6 11.0-0 Bg4 12.bc6 bc6 13.h3 Bf5 14.Nc3 Na6 15.Ba6 Ra7 16.Be2 1–0. Phomopsis (1650) – xcrizy (1655), lichess.org, 2020.

6.a4 d6 7.d4 (7.Be2 0-0+=) 7...Bg4 (7...Bf5 8.Be2+=) 8.Bd3+= Nd5 (8...d5 9.0-0+=) 9.h3 Be6 10.Ng5 Nd7 (10...Bc8 11.Qf3 Nf6 12.c4+=) 11.0-0 0-0 (11...c5 12.bc6 bc6 13.c4+/-) 12.Ne6 fe6 13.Qg4 N7f6 (14.Qe6 Kh8+–; 13...Kf7 14.c4 Nb4 15.Be2+/-). nitousche – dugmak, ChessWorld.net, 2004.

6.d4 0-0 7.Be2 c6 8.a4 cb5 9.ab5 d6 10.0-0 Nbd7 11.c4 Nb6 12.Nbd2 Bg4 13.h3 Bf3 14.Bf3 Rb8? (better is 14...Qc7+/-) 15.Ra7+– Nfd7 16.Bb7 (better is 16.Rb7!? Rb7 17.Bb7 e5+–) 16...Qc7 17.Qf3 d5 18.c5 Nc4?? 19.Nc4+– Rb7 20.Rb7 Qb7 21.c6?? Qb5+/- 22.Qd5?? Nf6 23.Qb5+– Ne4 24.f3 Ng5 25.h4 Ne6 26.d5 Bb2 27.de6 fe6 28.Qb2 (28.Qb2 e5 29.Rd1+–) 1–0. mihai740609 – remero11, kurnik, 2011.

4.e3 d5

5.a3 b6 6.c4 Bb7 7.b5 a6 8.a4 c5 9.Be2 e6 10.0-0 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.cd5 ed5 14.d3 0-0 15.Nbd2 Qa8 16.Qc2 Qa3 17.Bb2 Qb4 18.Qb3 (18.Rb1 Qg4+=) 18...Qb3= 19.Nb3 Ra8 20.Ra1 Ra1 21.Ba1 (21.Na1?! h6=) 21...Ne8 22.Bg7 Kg7 (22...Ng7?! 23.Na1=) 23.Nfd2 Nd6 Black prepares c4 24.d4 c4 25.Na1 Nb5 26.Nc2 Nd6 27.f3 (27.e4!?-/+) 27...b5-+ 28.Nb4 Nb6 29.Kf2 f5 30.f4 Ne4 31.Ne4 de4 32.Bd1 (32.Nc2 Nd5-+) 32...Nd5 33.Nd5 Bd5 34.Ke2 (34.Be2 c3 35.Ke1 b4-+) 34...b4 (better 34...c3!? 35.Bc2-+) 35.Kd2 Kf6 36.Be2 Ke7 37.Kc2 Kd6 38.g4 Kc7 39.gf5 gf5 40.Bh5 Kb6 41.Be8 Ka5 (better 41...Be6-+) 42.Bd7-/+ c3 43.Bf5?? (better 43.h3-/+) 43...Ka4-+ Black plans b3 44.Bd7 Ka3 45.f5 (45.Bb5 b3 46.Kc3-+) 45...Ka2 (45...b3 46.Kc3 b2 47.Kd2 b1Q 48.Ba4 Qd3 49.Ke1 Qe3 50.Kd1 Qd3 51.Ke1 Bc4 52.Kf2 Qf3 53.Ke1 Qe2) 46.f6?? (better 46.Be6 Be6 47.fe6 b3 48.Kc3-/+) 46...b3-+ 47.Kc3 b2 48.Be6 (48.Kb4 b1Q 49.Kc5 Bf7-+) 48...b1Q (better 48...Be6 49.d5 Bf7 50.Kd4-+) 49.Bd5 Ka1 (better 49...Ka3 50.Be4 Qe4 51.Kd2-+) 50.Kc4 (50.f7 Qd3 51.Kb4 Kb2-+) 50...Qb6 (better 50...Qf1 51.Kc5 Qf6 52.Be4-+) 51.f7 Qc7 (better 51...Kb2 52.h4-+) 52.Kb4 (52.Kb5 Qd6 53.Be6 Kb1-+) 52…Qe7 (52...Qe7 53.Kc3 Qa3 54.Bb3 Kb1-+) 0-1. HIALUPHARMpl (2470) - alifie (2470), Rated Bullet game, lichess.org, 2020.

5.a3 c6 6.c4 0-0 7.cd5 cd5 8.h3 a6 9.Be2 Nc6 10.0-0 Re8 11.d4 Bf5 12.Nbd2 Rc8 13.Rc1 Ne4 14.Nb3 Na7 (14...b5 15.Bd3=) 15.Nc5 Nc5 16.Rc5 Rc5 17.bc5 b6 18.cb6 (18.Qb3!? b5 19.a4+=) 18...Qb6= 19.Qd2 Nb5 20.a4 Nd6 21.Ba3 Rb8 (21...Nc4 22.Qb4 Qb4 23.Bb4=) 22.Bc5 (22.a5 Qd8+=) 22...Qc6 23.Rc1 (better 23.Qa5=) 23...Rb1 (better 23...Qa4 24.Bd6 ed6=) 24.Rb1+/- Bb1 25.Qb4 Be4 26.a5 (26.Bd6 ed6 27.Qa5 Qc1 28.Kh2 Bf3 29.gf3 Bf6+/-) 26...Bf3 (26...Nc8 27.Be7 Qc1 28.Bf1 Ne7 29.Qe7+/-) 27.gf3 (27.Bf3?! Nb5+=) 27...h5 (27...Nb5!? 28.Be7 h6+/-) 28.Qb6 Qd7 29.Ba6 (29.Bd6 ed6 30.Qa6 Qe6+-) 29...Qh3 30.Bf1 (worse 30.Bd6 ed6 31.Bf1 Qf3+-) 30...Qf3 31.Bd6 ed6 (31...Qg4 32.Bg3 Qc8+-) 32.a6 (32.Qd6 Bf8 33.Qg3 Qf6+-) 32...Qg4 33.Bg2 h4 34.a7 h3 35.a8Q Bf8 36.Qd5 hg2 37.Qg2 Qd1 38.Kh2 Qh5 39.Qh3 Qe2 (39...Qg5 40.Qc8 Qf6 41.Kg2+-) 40.Qg3 (40.Kg3 Qd1 41.Qd8 Qg1 42.Kf3 Qd1 43.Kg2 Qh5+-) 40...Qh5 41.Kg2 d5 (41...Qd5 42.Qf3 Qe6 43.Qd8+-) 42.Qd8 Qf5 43.Qdg5 Qe4 44.Qf3 Qe6 45.Qgg4 (better 45.Qfd5 Qd5 46.Qd5 Kg7+-) 45...Qe7 (45...f5 46.Qh4 Be7 47.Qh1+-) 46.Qg6 (46.Qg6 fg6 47.Qd5 Kg7 48.e4=) 1-0. black_bishop_88 (2565) - temcolz (2415), lichess.org, 2020. (=1.a3 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 d5 5.e3)

5.a3 Bd7 6.c4 0-0 7.cd5 Nd5 8.Bg7 Kg7 9.Nc3 Nc3 10.dc3 Bg4 11.Be2 Qd1 12.Rd1 Nc6 13.0-0 Rad8 14.Nd4?? (14.h3 Bf3 15.Bf3 Rd1 16.Rd1 Rd8+=) 14...Be2?? (better is 14...Rd4 15.Rd4 Be2–+) 15.Ne2= Ne5 16.Nd4 Nc4 17.a4 c6 18.Nf3 Nb2 19.a5?? (better is 19.Rd8 Rd8 20.a5+=) 19…Rd1–+ 0–1. Fournier,Frederic (1805) – alexandreta (1745), Active (5/0), 2005.

5.a3 Bf5 6.c4 (6.Bd3 Bd3 7.cd3 0-0=) 6...e6 (6...0-0 7.cd5 a5 8.Qb3=) 7.Nc3 (better is 7.cd5 ed5 8.Nd4=) 7...Ng4 (7...0-0!?=) 8.d4 (8.h3 Nf6+/-) 8...Nc6 (8...Nf6 9.Nh4+=) 9.Be2 (9.h3 Nf6 10.g4 Be4+/-) 9...Nf6+= 10.0-0 Ne4 (10...dc4!? 11.Nd2 Bd3+=) 11.Ne4+/- Be4 12.Nd2 Bf5? (better is 12...0-0+/-) 13.g4+– Qg5?! (13...Be4 14.b5 Ne7+–) 14.f4 Qf6 15.gf5 Qf5 16.cd5 Qd5 17.Bf3 Qb5 18.a4 Qb4 19.Bc6 bc6 20.Qc2 0-0 21.Ba3 (21.Ba3 Qb6 22.Bf8 Bf8 23.Nc4+–) 1–0. Wall,Bill – Michael4, Microsoft Gaming Zone, 2000.

5.a3 Bg4 6.Be2 Nbd7 7.d3 0-0 8.0-0 Bf3 9.Bf3 e5 10.Nd2 c6 11.c4 Re8 Black prepares the advance e4 12.cd5 cd5 13.Qb3 e4 (13...Nb6 14.d4=) 14.de4 de4 15.Be2 Ne5 16.Bd4 Nc6 17.Bc3 a6 (17...Qe7 18.Rfd1+=) 18.Rfd1 (18.Qb2 a5+–) 18...Qb6 (18...Qe7!?+=) 19.Qb2+– Ne7?? (better 19...Nh5+–) 20.Nc4+– Qe6 (20...Qc6 21.Rd6 Qc7 22.Bf6+– (22.Rf6?! Nd5 23.Bd4 Bf6 24.Bf6 b5+–)) 21.Rd6 Qf5 22.Bf6 (22.Bf6 Qf6 23.Rf6+– (worse 23.Qf6 Bf6 24.Rf6 Nd5+–); 22.Rf6?! Bf6 23.Bf6 Nd5+–) 1–0. Pereira – Vintins, internet, 2020.

5.a3 Nh5 6.d4 b6 7.Nbd2 c5 8.bc5 bc5 9.Be2 c4 10.e4 (10.Ne5 Nd7+=) 10...e6 11.e5 Nf4 12.0-0 0-0 13.c3 Nc6 14.a4 Ne7 (14...Re8 15.Re1=+) 15.Ba3 Re8 16.g3 Ne2 17.Qe2 Nf5 18.Rab1 (18.Rfb1!?=) 18...Bd7 19.g4 Nh4 (19...Nh6 20.g5 Nf5 21.Bc5=+) 20.Nh4= Qh4 21.a5 f6 22.f4 h5 (22...Ba4 23.Rb7=) 23.gh5+= gh5 24.Kh1 Kh7 (24...f5!?+=) 25.Rg1 Rg8? (25...Reb8 26.Rb8 Rb8 27.Be7+-) 26.Rbf1?? (better 26.Rb7 Rgd8 27.Be7+-) 26...Bh8+/- 27.Bd6 (better 27.Be7 Rg1 28.Rg1+/-) 27...f5?? (27...Rg1 28.Rg1 Rg8 29.Rb1+=) 28.Qe3?? (28.Be7 Qh3 29.Bg5 Rab8+- (29...Qc3?? 30.Qh5 Kg7 31.Be7 Qg3 32.Rg3)) 28...Rg4?? (better 28...Rg1 29.Rg1 Rg8+=) 29.Nf3+- Qd8 30.Ng5 Kg8 31.h3 Rg1 (31...Bg7 32.hg4 hg4+-) 32.Rg1 (32.Kg1?! Bg7+/- (32...Qa5 33.Qg3 Ba4 34.Kh1 Qc3 35.Qc3+-); 32.Qg1?! Bg7 33.Rf2 Qe8+- (33...Qa5 34.Bb4 Qd8 35.Rg2+-)) 32...Bg7 (32...Qe8 33.Ne6 Kh7 34.Nf8 Qf8 35.Bf8 Rf8+-) 33.Qf3 (33.Qg3 Qe8 34.Ne6+-) 33...Qe8+/- (33...Qa5?? 34.Qh5 Bh6 35.Qf7 Kh8 36.Qh7) 34.Qg3 a6?? (better 34...Qg6+/-) 35.Ne6!+- Qf7 (35...Be6 36.Qg7 Mate attack; 35...Qe6 36.Qg7 Mate attack) 36.Ng7 Qg7 (36...Ba4 37.Nh5 Kh8 38.Qg5 Kh7 39.Qh4 Qg6 40.Nf6 Kg7 41.Qh7) 37.Qg7 1-0. HIALUPHARMpl (2475) - alifie (2495), Rated Bullet game, lichess.org, 2020.

5.a4 b6 6.b5 c5 7.Be2 Bb7 8.d4 Nbd7 9.0-0 0-0 10.Nbd2 Rc8 11.c3 cd4 12.cd4 Ne8 13.Ba3 Ndf6 14.Rc1 Rc1 15.Qc1 Nd6 16.Ne5 Nfe4 17.Ne4 Ne4 18.Nc6 Bc6 19.Qc6 Re8 20.Rc1 e6 21.Qb7 Qf6 22.Bf3 Nd2 23.Be2 Ne4 24.f3 Bh6 25.f4 Qh4 26.Rf1 Nd2 27.Rf2 g5 28.g3 Qh3 29.Qd7 Rf8 30.Bf8 Bf8 31.f5 g4 32.fe6 1–0. Abdullaevich (1760) – Zkatan, lichess.org, 2019.

5.a4 e6 6.Be2 0-0 7.0-0 b6 8.Nc3 Bb7 9.a5 Nbd7 (9...a6!?=) 10.a6+= Bc8 11.b5 Nc5 12.d4 Nce4 13.Ne4 Ne4 14.c4 dc4 15.Bc4 Bd7 16.Ba3 Re8 17.Bd3 Nf6 (17...Nd6 18.Qb3+/-) 18.Ne5 c6? (better is 18...Nd5!?+/-) 19.bc6+– Bc8 20.Qf3 Nd5? 21.Qf7 Kh8 22.Rfc1 Rf8 23.c7 Nc7 24.Bf8 Bf8 25.Rc7 (25...Bd7 26.Rd7 Qh4 27.g3 Qh6 28.Qf6 Qg7 29.Rg7 Bg7 30.Ng6 hg6 31.Qg6 Kg8 32.Qe6 Kh8 33.Qf5 Kg8 34.Bc4 Kh8 35.Qh5 Bh6 36.Qh6) 1–0. fajgo – derr, internet, 2002.

5.a4 Bg4 6.Be2 Nbd7 7.h3 Bf3 8.Bf3 e5 9.Nc3 e4 10.Be2 c6 11.0-0 Qc7 12.d4 0-0 13.b5 Rfe8 14.a5 Qd6 15.a6 b6 16.bc6 Qc6 17.Nb5 Re6 (17...Rec8!? 18.Rc1 Nb8=) 18.Rc1 Ne8? (better is 18...Nb8!? 19.c4 Na6 20.cd5 Qd5+/-) 19.c4+– Nd6? (better is 19...Nf8+–) 20.cd5 Qd5 21.Nc7 (21.Nc7 Qa2 22.Na8 Qb2 23.Rc2+–) 1–0. pierre – tyzub, internet, 2010.

5.b5 b6 6.a4 0-0 7.h3 Bb7 8.Be2 c6 9.Nc3 Ne4 10.d4 Nc3 11.Bc3 a6 12.0-0 ab5 13.ab5 Ra1 14.Qa1 Nd7 15.Qa7 Qb8 16.Ra1 c5 17.Bb2 Qc7 18.c3 Ra8 19.Qa8 Ba8 20.Ra8 Bf8 21.Ba3 Qb7 22.Rd8 Kg7 23.c4 e6 24.dc5 bc5 25.Ng5 Be7 26.Bb2 Nf6 27.Re8 d4 28.ed4 Ne8 29.dc5 Bf6 30.c6 Qb6 31.Bf6 Nf6 32.Nf3 Ne4 0–1. Abdullaevich (1690) – Sanfariel (1745), lichess.org, 2019.

5.b5 c5 6.c4 b6 (6...0-0 7.d4=) 7.cd5 Qd5 8.Nc3 Qd8 9.Ne2 (9.d4 0-0+=) 9...Bb7 (9...a6 10.Nf4=) 10.Ng3 (10.d4 Bf3 11.gf3 Nbd7=) 10...Nbd7 (10...0-0 11.d4=) 11.Be2 (11.Bc4 a6=) 11...Qc7 12.0-0 e5 (12...0-0 13.Qa4=) 13.d3 (13.Qc2 0-0=) 13...0-0 14.e4 (14.Qc2 Rfd8=) 14...Ne8 15.Qc2 Nd6 16.Nd2 (better is 16.d4!? ed4 17.Bd4 Bd4 18.Nd4 Ne4 19.Ne4 Be4 20.Qe4=) 16...Nb5-/+ 17.f4 (better is 17.a4!? Nd4 18.Bd4 ed4 19.a5-/+) 17...ef4–+ 18.Bg7 Kg7 19.Qb2 Nd4 20.Nf3?? (better is 20.Rac1 Qe5 21.Nc4–+) 20...fg3 21.hg3 (21.Nd4 gh2 (worse is 21...cd4 22.Qd4 Ne5 23.Rac1 gh2 24.Kh2–+) 22.Kh1 cd4 23.Qd4 f6–+) 21...Qg3 22.Nd4 Qe3 (worse is 22...cd4 23.Qd4 Ne5 24.Qf2 Qf2 25.Kf2–+) 23.Kh1 Qd4 24.Qb3 (24.Qd4 cd4 25.Rab1 Rac8–+) 24...Ne5 25.a4 (25.Rae1 f5–+) 25...c4! 26.dc4 Qe4 27.Bf3 (27.Rf2 Ba6–+) 27...Nf3 (better is 27...Qh4!? 28.Kg1 Bf3 29.gf3–+) 28.Rf3 Qe5 29.Rff1 Rad8 30.Ra2 (30.Rae1 Qh5 31.Kg1 Qc5 32.Rf2 Rfe8 33.Qc3 Kg8–+) 30...Rd4 (30...Rd4 31.Kg1 f6–+) 0–1. Ovcharenko,Leonid – Glushko,Andrey, 2007. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 g6 4.e3 Bg7)

5.b5 c6 6.c4 cb5 7.cb5 0-0 8.a4 a6 9.Nc3 ab5 10.Nb5 Bd7 11.h3 Bb5 12.Bb5 Qb6 13.0-0 Nc6 14.d4 Rfc8 15.Ba3 e6 16.Bc5 Qc7 17.Qb1 Ne4 18.Rc1 Nc5 19.Rc5 Qd6 20.Qb3 Ne7 21.Rac1 Rc5 22.Rc5 b6 23.Rc2 Rc8 24.Rc8 Nc8 25.Qc3 Na7 26.Ne5 Nb5 27.a5 Be5 28.de5 Qd8 29.Qc6 ba5 30.Qb5 Qc7 31.Qa6 Qc5 0–1. Abdullaevich – muk_kes, lichess.org, 2019.

5.b5 Bg4 6.h3 Bf3 7.Qf3 a6 8.c4 ab5 9.cb5 0-0 10.a4 c6 11.Nc3 Ne4 12.d4 Nc3 13.Bc3 cb5 14.Bb5 Qc7 15.Rc1 e6 16.0-0 Nd7 17.Bb4 Qd8 18.Bf8 Bf8 19.Rc2 Rc8 20.Rfc1 Rc2 21.Rc2 Nb6 22.Qd1 Bd6 23.Qc1 Bb8 24.a5 Nc4 25.Bc4 dc4 26.Rc4 Qd6 27.g3 Kg7 28.Qc3 Qa6 29.d5 e5 30.Rc8 Bd6 31.Kg2 b5 32.Rc6 Bb4 33.Qe5 1–0. Abdullaevich (1890) – andremelo012 (1790), lichess.org, 2020.

5.Nc3 a5 6.ba5 (6.b5 0-0=) 6...Ra5 (6...0-0 7.Be2=) 7.Be2 0-0 8.d4 (8.0-0 Nbd7=) 8...Nbd7 (8...Bf5 9.0-0+=) 9.0-0= Re8 10.Qd2 c6 11.Rfb1 Ne4 (11...b6 12.Bd3=) 12.Ne4 de4 13.Bc3 (13.Ne1 e5=) 13...Ra8 (13...Ra4 14.Ne1=) 14.Ne1 Qc7 (14...e5 15.d5=) 15.Bb4 (15.a4 e5=) 15...c5 16.Bc3 cd4 17.ed4 Nf6 18.Bb4 (18.Bb2 Rd8=) 18...Nd5+= 19.Bc5 (19.c3 e5+=) 19...b6 20.Bc4 e3! 21.fe3 (21.Qe3 Ne3) 21...Ne3! 22.Qe3 bc5 23.dc5 Ba1 24.Ra1 e5 (24...Ba6 25.Bd3-/+) 25.Nd3 Kg7 (25...Ra5 26.Rb1-/+) 26.Bb5 Bd7 27.c4 Ra3 28.Bd7 Qd7 29.Ne5 Qd8 (29...Qd8 30.Qf4 Qc7–+; 29...Re3?! 30.Nd7 Rc3 31.a3+=) 0–1. Reyes,ME – Svensson,Jan, corr 3GMM½–04, 1999.

5.Nc3 c6 6.Be2 Nbd7 7.a3 0-0 8.0-0 e5 9.Re1 Ne8 10.d3 Nd6 11.Rb1 Re8 12.Bf1 Nf8 13.Ne2 Bg4 14.Nd2 Nd7 15.Qc1 b5 16.g3 (16.h3 Be6+=) 16...Rc8 17.Bg2 Be6 18.Ra1 Nb6 19.f4 f6 20.Rf1 Na4 21.Rb1 Nb2 22.Rb2 Bg4 23.Nc3 ef4 24.ef4 Be6 25.Rb1 Qd7 26.Nb3+= Nb7 27.Qd2 f5 28.Rbe1 Re7 29.Re2 d4 30.Nd1 Rce8 31.Rfe1 Bf6 32.Bf3 h5 33.h4 Qd6 34.Kh2 Nd8 35.Nc5 ½–½. Serowy,Reinhold – Biehler,Peter (1620), Brandenburg–ch Seniors, 2003.

5.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5).

5.c4 a5 6.b5 dc4 7.Bc4 a4 8.a3 c6 9.0-0 0-0 10.Nc3 Bd7 11.Ne5 (11.Na4? cb5 12.Bf7 Rf7–+) 11...cb5 (11...Ra5 12.Nd7 Nfd7 13.Be2+= (13.Na4? cb5 14.Bg7 Kg7–+)) 12.Nd7+– White fights for the Initiative (12.Nb5 Bb5 13.Bb5 Qb6=+; 12.Bb5? Bb5 13.Nb5 Ra5–+) 12...bc4 13.Nf8 Qf8 14.Qe2 Qc8 15.Rfc1 Nc6 (better 15...Ra5!?+–) 16.Qc4+– Na5 (better 16...Qd7+–) 17.Qc8 Rc8 18.Na4 Nb3 (18...Rd8 19.Rab1 Nb3 20.Bf6 Nc1 21.Bg7 Kg7 22.Rc1 Rd2+–) 19.Rc8 (19.Rc8 Bf8 20.Nb6 Na1 21.Ba1+–) 1–0. Pereira – IreneSt, internet, 2020.

5.c4 Nc6 6.b5+= Nb4? (better is 6...Nb8+=) 7.a3 Rg8 (7...dc4 8.ab4 Be6 9.Na3+–) 8.ab4 Ne4 (8...Bg4 9.d4+–) 9.Bg7 Rg7 10.Nc3 Nc3 (10...Nf6 11.cd5 Nd5 12.Nd5 Qd5 13.Qc2+–) 11.dc3 Bg4 (11...e6+–) 12.Qd4 Bf3 13.Qg7 Be4 14.cd5 Bd5 15.e4 Be4 (15...e6 16.ed5 ed5+–) 16.Qg8 Kd7 17.0-0-0 Kc8 18.Qd8 (18.Rd8?!=) 1–0. pierred (2825) – mickeyd, net–chess.com, 2016.

5.d3 c6 6.Nbd2 0-0 7.Be2 Nbd7 8.0-0 Re8 9.c4 e5 10.cd5 (10.c5 b6=) 10...Nd5 11.Qb3 Qe7 12.a3 a5 13.ba5 Ra5 14.Nc4 Ra8 15.Rfe1 b5 16.Ncd2 Bb7 17.e4 (17.Ne4 N7b6=) 17...Nf4+= 18.Bf1 (18.Qc2 Qd6+=) 18...Nc5-/+ 19.Qc2 Rad8 20.Re3 Na4 21.Rc1 Nb2 22.Qb2 Ra8 23.g3 Nh5 24.Rc3 Ra4 25.Ne1 Bh6 26.Re2 Ng7 27.Nc2 Bd2 28.Rd2+= Ne6 29.Bh3 Nd4 30.Nd4 ed4 31.Rc1 Qa3 32.Bd7 Rd8 33.Bc6 Rc8–+ 34.Qa3 Ra3 35.Rdc2 Rc6 36.Rc6 Bc6 37.Rc6 Rd3 38.Kf1 Rb3 39.Ke2 Rb2 40.Kf3 d3 41.Ke3 b4 42.Rd6 Re2 43.Kf3 Rd2 44.Ke3= Re2 45.Kf3 Rd2 ½–½. Buchanan,Walter F – Morrison,Graham, Ch Scotland, Edinburgh (Scotland), 1999.

5.d4 a5 6.b5 0-0 7.Be2 c6 8.a4 Ne4 9.0-0 Bf5 10.Na3 Nd7 11.c4 dc4 (11...e6 12.h3 Ng5 13.Rc1=) 12.Nc4+= Nb6 13.Nfe5 Nc4 14.Nc4 (worse 14.Bc4 Be5 15.de5 Nd2-/+) 14...cb5 15.ab5 b6 16.Rc1 h5 (16...Be6 17.f3 Nd6 18.Qa4+=) 17.Ba3 Rc8 18.Kh1 (18.Bd3 Re8+/-) 18...Nd6 19.Nd6 ed6 20.Rc6 Be4 (20...Rc6 21.bc6 Qc7 22.d5+/-) 21.Rc8 Qc8 22.f3 Bc2 (22...Qc3 23.Bd6 Bc2 24.Qe1 Qe1 25.Re1+=) 23.Qd2 Bf5 (23...Bb3 24.Bd6 Re8 25.Rc1+/-) 24.e4+- Be6 25.d5 Bd7 26.Bd6 Re8 27.Rc1 Qa8 28.Rc7 Bc8? (better 28...Qd8+-) 29.Qf4 f5 (29...Bf5+-) 30.Qg5 fe4 (30...Bd7 31.Rd7 Qc8+-) 31.Qg6 (31.Qg6 Bd7 32.Rd7 Re7 33.Re7 Qf8 34.Rc7 ef3 35.Bf8 fg2 36.Kg2 Kf8 37.Qf7) 1-0. Kovalenko,I (2640) - Matinian,N (2470), PNWCC Online Blitz JP, 2021. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d5 5.Bb2)

5.d4 a5 6.b5 c6 7.Nc3=.

5.d4 a5 6.b5 Bf5 7.c4 (7.Be2 c6=) 7...c6 (7...0-0 8.Nc3=) 8.Nc3 0-0 (8...cb5 9.Nb5 Nc6 10.Be2=) 9.cd5 (9.Qb3 a4 10.Na4 cb5 11.cb5 Qa5 12.Nc3 Ne4+=) 9...cb5 (9...cd5 10.Rc1=) 10.Bb5+= Nd5 11.0-0 Na6 (11...Nc6 12.Rc1+=) 12.Qe2 (12.Qb3 Nc3 13.Bc3 Nc7+=) 12...Rc8 (12...Nc3 13.Bc3 Nc7 14.Bc4+=) 13.Rac1 Nab4 (13...Nac7 14.Nd5 Qd5 15.Bc4+=) 14.Rfd1 (14.a3 Nc3 15.Bc3 Nd5+=) 14...Nc3 (14...Qb6 15.Nd5 Nd5 16.Bc4+=) 15.Bc3 Nd5 16.Be1 (16.Bd2 Bc2 17.Re1 Nf6+/-) 16...b6 17.e4 Nf4 18.Qe3 Bh6 19.Kf1 (19.Kh1 Bg4 20.Rc3 Ng2 21.Qh6 Rc3+–) 19...Bd7 (better is 19...Bg4 20.Rc8 Qc8= (worse is 20...Bc8 21.Ne5+/-)) 20.Be2 (better is 20.Ba6=) 20...Rc1-/+ 21.Qc1 (better is 21.Rc1 Be6 22.Bc4 Bc4 23.Rc4=) 21...Qa8 (better is 21...Ba4!?-/+) 22.Qe3= Rc8 (22...Ba4 23.Ra1 Rc8 24.g3 Ne2 25.Qh6=) 23.Ne5 (23.Rb1 Rc2 24.Bd3 Nd3 25.Qd3 Ra2=) 23...Ba4+= 24.Ng4 (24.Ra1!?+=) 24...Bg5-/+ 25.h4? (better is 25.Ra1 Rc2 26.Bd3-/+) 25...Ne2–+ 26.Qg5 (26.Qe2 Bd1 27.Qd1–+) 26...Qa6 (better is 26...Bd1 27.Nh6 Kf8–+) 27.Qe7 (better is 27.Ra1 f6 28.Qd2-/+) 27...Qc4?? (27...Nd4 28.Kg1 Qc4 29.Nh6 Kg7 30.Qe5 Kf8 31.Rd4+– (31.Qd4?! Bd1 32.Qd1 Qc1=)) 28.d5?? (better is 28.Ne5!? Ng3 29.Kg1+/-) 28...Ng3?? (better is 28...Nf4 29.Kg1 Bd1 30.Nh6 Kg7 31.Qf7 Kh6 32.Qf4 Kg7 33.Qe5 Kg8 34.Qe6 Kh8=) 29.Kg1+/- Qc7? (29...Nf5 30.ef5 Qg4 31.Ra1 Qf5 32.Qd6=) 30.d6?? (better is 30.Qc7 Rc7 31.d6+– (31.fg3?! Bd1 32.Nf6 Kf8+/-)) 30...Qe7= 31.de7 Bd1 32.Nf6 Kh8 (better is 32...Kg7!? 33.e8Q Re8 34.Ne8 Kf8+=) 33.fg3+/- Ba4 34.Bf2 Rc4 (better is 34...Kg7!? 35.Bd4 g5+–) 35.Bb6+– Kg7 36.e8Q (36.e5 Rc2 37.a3 Re2+–) 36...Be8 37.Ne8 Kf8 38.Nf6 Ra4 39.Bc5 (39.a3 Kg7 40.Ne8 Kf8+/-) 39...Kg7 40.Ne8 Kg8? (better is 40...Kh8+–) 41.a3 Rc4 42.Bd6 (42.Nf6 Kg7 43.Be7 Rc1 44.Kh2 Re1+–) 42...f5 43.e5 Kf7 44.Nc7 f4 (44...Re4+–) 45.gf4 (45.gf4 Re4 46.g4+–) 1–0. Gundogan,Cem (2060) – Kamer,Kayra (2060), TCh–TUR Super League, 2017. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3 a5)

5.d4 a6 6.c4 dc4 7.Bc4 0-0 8.Qb3 Ne4 9.Bd3 Bf5 10.Qc2 Nd6 11.e4 Bg4 12.Nbd2 Bf3 13.Nf3 (< 13.gf3 Nc6-/+) 13...h6 14.e5 Nf5? (better is 14...Nc8+/-) 15.g4+– (15.Bf5?! gf5 16.Qf5 Qd5+/-) 15...Nd4 16.Bd4 Nc6 17.Bc3 Qd5 18.Be4 Qe6 19.0-0-0 Be5? (19...Ne5 20.Rhe1 Rad8 21.Rd8 Rd8 22.Bg6 fg6 23.Ne5 Rd6+–) 20.Ne5 Ne5 21.Bd5 (21.Bb7?! Rad8 22.g5 Qb6+–) 21...Qf6 22.Qe4 Qg5 (22...c6 23.Bc4 (23.Be5?! cd5 24.Bf6 de4 25.Be7 Rfc8 26.Kb2 Rc6+–) 23...a5 24.Be5 Qe5 25.Qe5+–) 23.f4 Qg4 (23...Qf6+–) 24.Qe5 (24...Qf4 25.Qf4 Kh7 26.Qe5 Rg8 27.Qe7 Rgf8 28.Qf6 Rg8 29.Qf7 Rg7 30.Qg7) 1–0. pcmvr – Centurion, ChessWorld.net, 2002.

5.d4 b5 6.Bb5+/- c6 7.Be2 0-0 8.0-0 a5 9.b5 cb5 10.Bb5 Qb6 11.a4 Ba6 12.Na3 Nc6 (12...Rc8 13.Ne5+/-) 13.Qe2 Rfc8 14.Rab1 (14.Rfc1 Bb5 15.ab5 Nd8+/-) 14...Nb4 15.c3 Nc6 (15...Na2 16.c4 Bb5 17.ab5 dc4 18.Ba1+/- (18.Nc4?! Qb5 19.Nfe5 Nd5=)) 16.Nd2 e5 17.Rfc1 Ne8 (17...ed4 18.cd4 Nb4 19.Rc3+/-) 18.Ba6 (18.c4 ed4 19.cd5 Nb4 20.Rc8 Rc8 21.Ba6 Qa6 22.Qa6 Na6 23.Bd4 Bd4 24.ed4 Nd6+–) 18...Ra6 19.Nb5 Nc7 20.Ba3 Qb8 21.Nc7 (21.Nc7 Qc7 22.Qa6+–) 1–0. Brukske (1690) – gerlandog (1680), internet, 2007.

5.d4 b6 6.c4 0-0 7.cd5 Nd5 8.Qb3 c5!? 9.b5 (9.bc5 bc5 10.dc5 Bb2 11.Qb2 Qa5 12.Nbd2 Nd7 13.c6!) 9...cd4 10.Nd4 Bb7 11.Nd2 Nd7 12.N2f3 (12.Ne4) 12...Nc5 13.Qa3 Nc7 14.Be2 a6! 15.Nc6 Qe8? 16.Bg7 Kg7 17.Qb2 Kg8 18.Ncd4 ab5 19.Nb5 Qc6 20.Nc7 Qc7 21.0-0 Ba6 22.Ba6 Ra6 23.Rfd1 Rfa8 24.h3 Qa7 25.Rd2 Ne4 26.Rc2 Nd6 27.Nd4 Qd7 ½–½. Luneau – Garcia Rodriguez, Andorra 1995.

5.d4 Qd6 6.a3 0-0 7.Nbd2 Bf5 8.c4 c6 9.c5 Qd7 10.Be2 Bg4 11.0-0 Qc7 12.a4 a5 13.b5 b6 14.cb6 Qb6 15.Ba3 Re8 16.Rb1 Nbd7 17.bc6 Qc6 18.Bb5 Qe6 19.Qb3 (19.h3!? Bf3 20.Qf3+=) 19...Rec8 20.Rfc1 Bf3 21.Nf3 Ne4 22.Rc2 Ndf6 23.h3 (23.Rbc1!?+/-) 23...Rc2= 24.Qc2 Rc8 25.Qb2 Nc3 26.Rc1 Nfe4 27.Nd2 Nb5 28.Ne4 (better is 28.Rc8!? Qc8 29.ab5 Nd2 30.Qd2+=) 28...Rc1-/+ (worse is 28...de4 29.Rc8 Qc8 30.Qb5+/-) 29.Qc1 Nd4 (29...de4 30.ab5 Bf8 31.Qc7+–; 29...Na3?! 30.Nc5 Qc6 31.Qa3=) 30.ed4 Qe4 31.Qc8 Bf8 32.Qc3 (32.Bc1 Qe6 33.Qe6 fe6 34.Bd2=) 32...Qb1-/+ 33.Kh2 Qb8 (33...Qa2 34.f3-/+) 34.g3 Qd8 35.Bc5 e6 36.Bf8 Kf8 37.Qc5 Kg7 38.Kg2 Qa8 39.Qb6 Kf6 40.f4 h5 41.g4 Qc8–+ 42.g5 Kg7 43.Qb3 Qc1 44.Qb8 Qd2 45.Kf3 Qd3 46.Kg2 Qd4 47.Qc7 Qe4 48.Kg3 Qe1 49.Kf3 h4 50.Qe5 Qe5 51.fe5 Kf8 52.Ke3 Ke7 53.Kd4 Kd7 54.Kc5-/+ Kc7 55.Kb5 Kb7 56.Ka5 d4?? 57.Kb4+– Ka6 58.Kc4 Ka5 59.Kd4 Ka4 60.Kc4 ½–½. Tkachev,Taras – Levanovsky,Vladimir (1875), St Petersburg op U18, 2008. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3)

5.d4 Ne4 6.Nbd2 f5 7.c4+= c6 8.Qb3 Nd2 9.Nd2 Be6 10.Nf3 dc4 11.Bc4 Bc4 12.Qc4 Qd5 13.Qd5 cd5 14.Rc1 Nc6 15.b5 Na5 16.Nd2 Kd7 17.Ke2 Rac8 18.Kd3 e6 19.Ba3 b6 20.Bb4 Nb7 21.Nb3 Rc1 22.Rc1 Bf8 23.Bf8 Rf8 24.a4 Rc8 25.Rc8 Kc8 26.f3 Nd6 27.Nd2 Kb7 28.Kc3 (28.e4 g5+=) 28...Kc7 29.Kb4 Nb7 30.e4 de4 31.fe4 Na5 32.e5 Nb7 33.Nc4 g5 34.Kc3 Kd7 35.h3 Kc7 36.Ne3 Kd7 37.Nc2 Kc7 38.Nb4 Nd8 39.Kc4 Nb7 40.Nc6+/- h5 41.Kd3 Nd8 42.Nb4 Nb7 43.Nc2 Na5 44.Kc3 Kb7 45.Ne1 a6? 46.Nf3+– g4 47.Ng5 gh3 48.Nh3 ab5 49.ab5 Kc7 50.Nf4 Kd7 51.Nh5 Nb7 52.Nf4 Nd8 53.Nd3 Nf7 54.Nb2 Ng5 55.Nc4 Ne4 56.Kd3 Kc7 57.Nd2 Nf2 58.Ke2 Ng4 59.Kf3 Nh2 60.Ke2 Ng4 61.Nc4 Kb7? 62.Ne3 Nh6 63.Kf3 Kc7 64.Kf4 Nf7 65.d5 ed5 66.Nd5 Kb7 67.Kf5 Nd8 68.Kf6 Kc8 69.Nb6 Kc7 70.Nd5 Kd7 1–0. Guillamat,Jean Pierre (2060) – Pelayo,Antoine (1880), FRA–ch Veterans, 2003. (=1.d4 d5 2.Nf3 Nf6 3.b4 g6 4.Bb2 Bg7 5.e3)

5.d4 e6 6.Nbd2 (6.Bd3 Qd6 7.b5 c6+=) 6...Bd7 (6...Nbd7 7.Be2+=) 7.Be2 Nc6 (7...Qe7 8.a3+=) 8.b5+= Ne7 9.a4 (9.0-0 0-0+=) 9...0-0 10.0-0 c6 (10...a6 11.Ba3+=) 11.c4 (11.Ne5 Rc8+=) 11...dc4 12.Bc4 Ned5 (12...Nfd5 13.Ne4+=) 13.Ba3 Re8 14.Qc2 (14.Ne5 cb5 15.ab5 a6 16.ba6 ba6+/-) 14...Bf8 (14...cb5 15.ab5 Rc8 16.Qb3+/-) 15.Bf8+/- Rf8 16.Rfb1 (16.Ne5 Rc8+/-) 16...Nh5 (16...Rc8 17.Qd3+/-) 17.Ne5 (17.Ne4 Nhf6 18.Nc5 cb5 19.ab5 b6+/-) 17...Ng7 (17...f6 18.bc6 fe5 19.cd7 (19.cb7?! Rb8=) 19...Qd7 20.de5+/-) 18.bc6 (18.Ne4 Be8+–) 18...Bc6+/- 19.Nc6 bc6 20.Rb7 Nb6 21.a5 Nc4 22.Nc4 Qd5 23.Rab1 Rfc8 24.Qb3 Ne8 25.Ne5 Qb3 26.R1b3 1–0. Brukske – perskak, internet, 2007.

5.Be2 c6 6.0-0 Bg4 7.h3 Bd7 8.a4 Na6 9.b5 Nc5 10.c4 e6 11.Qc2 b6 12.Ne5 cb5 13.Nd7 Qd7 14.ab5 dc4 15.Bc4 0-0 16.Ba3 Rfc8 17.d4 Nce4 18.Bb4 Nd6 19.Nd2 Nd5 20.Bd6 Qd6 21.Qb3 Rc7 22.Ra4 Rac8 23.Rfa1 Bf8 24.Bd5 Qd5 25.Qd5 ed5 26.Ra7 Rc2 27.Nf1 Bb4 28.Ra8 Ba5 29.Rc8 Rc8 30.Rb1 Rc2 31.g3 f5 32.Kg2 h5 33.h4 Kf7 34.Kf3 Ke7 35.Nh2 Kd7 36.Kg2 Ke7 37.Nf3 Ke6 38.Ne5 Kf6 39.Nc6 Bc3 40.Kf3 g5 41.hg5 Kg5 42.Ne7 Ba5 43.Nd5 Rc8 44.Nf4 h4 45.gh4 Kh4 46.Rh1 Kg5 47.Rh5 Kf6 48.Rh6 Ke7 49.Rb6 Bb6 50.Nd5 Ke6 51.Nb6 Rc2 52.Na4 Ra2 53.Nc5 Kf6 54.b6 Rb2 55.b7 Rb1 56.b8Q Rb8 57.Nd7 Ke7 58.Nb8 Kd6 59.Na6 Kc6 60.Nb4 Kb5 61.Nd3 Kc4 62.Ne5 Kc3 63.Kf4 Kb4 64.f3 Kb5 65.Kf5 Kb6 66.e4 Kb7 67.d5 Kb6 68.Ke6 Kb5 69.f4 Kb4 70.f5 Kc3 71.f6 Kd2 72.f7 Ke2 73.f8Q Ke3 74.Qf3 Kd2 75.Nc4 Kc2 76.Qe3 Kb1 77.Qd2 Ka1 78.Qb2 1–0. Abdullaevich (1795) – caliyogi (1695), lichess.org, 2019.

5.Be2 Bf5 6.d3 0-0 7.0-0 Nc6 8.b5 Na5 9.a4 b6 10.Qd2 Nh5 11.d4 Nf6 12.Bd3 Bd3 13.cd3 Ne4 14.de4 de4 15.Ng5 e6 16.Ne4 Nc4 17.Qc3 Nb2 18.Qb2 f5 19.Ned2 Qd5 20.Nc3 Qd6 21.Nc4 Qe7 22.f4 Rac8 23.Ne5 c5 24.bc6 Be5 25.fe5 Rc6 26.Nb5 Rfc8 27.Nd6 R8c7 28.h3 Rc2 29.Qb5 Kg7 30.d5 Qg5 31.g4 Qe3 32.Kh1 Qh3 33.Kg1 Qg2 0–1. Adjailton (1860) – Cold_War_Vet (1755), lichess.org, 2019.

5.g3 0-0 6.Bg2 Bg4 7.d3 Nbd7 (7...Na6 8.a3-/+) 8.0-0 Nb6 9.a4 Re8 (9...Qd6!?+=) 10.h3 Bf3 11.Bf3 Qd7 12.Bg2 (12.a5!? Na4 13.Be5=) 12...Na4+= 13.Be5 Qc6 (better is 13...a5 14.ba5 Ra5+=) 14.c4+= Qa6?? (better is 14...Nb6 15.Nc3 e6+=) 15.Ra4+– Qc6 16.cd5 (16.cd5 Nd5 17.Qb3+–) 1–0. algernon (2510) – gbsrao (2340), net–chess.com, 2015.

5.a3 0-0

6.Qc1 c5 7.bc5 Qa5 8.c4 Qc5 9.d4 Qc6 10.cd5 Nd5 11.Qc6 Nc6 12.Bb5 Na5 13.0-0 a6 14.Be2 Be6 15.Nbd2 Rac8 16.Rfc1 h6 17.Rc8 Rc8 18.Rc1 Rc1 19.Bc1 Nc3 20.Bd3 b5 21.Bb2 Na4 22.Ba1 Kf8 23.Kf1 Ke8 24.Ke2 Kd7 25.Ne1 Bb3 26.Nc2 Bc2 27.Bc2 Nb6 28.Bc3 Nac4 29.Nc4 Nc4 30.Bb3 Na3 31.Bb4 Nc4 32.Kd3 Nd6 33.Bd6 Kd6 34.Bf7 g5 35.Bb3 a5 36.e4 e5 37.d5 Kc5 38.Kc3 a4 39.Ba2 b4 40.Kd3 b3 41.Bb1 Kb4 42.g3 Bf8 43.f4 gf4 44.gf4 ef4 45.e5 Kc5 46.d6 a3 47.d7 Be7 48.e6 Kd6 49.d8Q Bd8 50.Kc3 a2 51.Kb2 Bf6 0–1. Adamkosh (1840) – nemofisher (2220), lichess.org, 2019.

6.d3 Bg4 7.Be2 a6 8.h3 Bd7 9.c4 c6 10.cd5 cd5 11.0-0 Nc6 12.Nc3 e5 13.Qc2 Re8 14.Rad1 Bf5 15.e4 de4 16.de4 Ne4 17.Rd8 Nc3 18.Re8 Re8 19.Qc3 1–0. Chess4Win – InterstellarSailboat, lichess.org, 2019.

6.d4 a5 7.Nbd2=.

6.d4 a6 7.c4 dc4 8.Bc4 b5 9.Bb3 Bb7 10.Nbd2 Nbd7 11.0-0 Re8 12.Rc1 Rc8?? (12...a5 13.ba5 Ra5 14.Qc2+=) 13.Qe2 (13.Bf7 Kh8+–) 13...Ne4?? (13...e6 14.e4+=) 14.Rc2 Nd2+= 15.Nd2 e5 16.de5 Ne5 17.Rd1 Qg5 18.Qf1 h5?? 19.f4+– Qh4?! 20.Be5 Re5 21.fe5 Be5 22.Nf3 Bf3 23.Qf3 Qh2 24.Kf1 Qh1 25.Ke2 (25.Ke2 Qh4 26.Qf7 Kh8 27.Rd7 Qg4 28.Kd2 Qd7 29.Qd7+–) 1–0. futsalboy (1730) – vihor13 (1650), kurnik, 2011.

6.d4 a6 7.c4 dc4 8.Bc4 b5 9.Be2 Bb7 10.0-0 Nbd7 11.Nbd2 Re8 12.Rc1 Rc8 13.Nb3 Bf3 (better is 13...Bd5!?+=) 14.Bf3+/- (14.gf3?! Nd5=) 14...e5 15.Bb7 Rb8 16.Ba6 (16.Na5 Rb7 17.Nb7 Qb8+–) 16...ed4 (better is 16...Rb6!? 17.de5 Ne4+/-) 17.Nd4+– (worse is 17.Bd4 Re6 18.Bb7 Rb7=) 17...Ne4?? (better is 17...c5 18.bc5 Qa5 19.Bb5 Rb5+–) 18.Qc2 Qf6? 19.Qc7 Qa6 20.Qd7 Rbd8 21.Qb5?? Qf6?? 22.Rc6 Qh4 23.g3 Qg4 24.Kg2 Nd2 25.Rfc1 Qe4 26.f3?? Nf3 27.Nf3 Bb2?? 28.R1c2= Ba3 29.Re2 Rd3 30.Rcc2?? Re3–+ 31.Re3 Qe3 32.Rf2 Qe4-/+ 33.Qa4 Bb4 34.Qb5 Bd6 35.Qb2 h5 36.Qc2 Qc2 37.Rc2 Kg7 38.Rc6 Bb8 39.Rc2 Re7 40.Nd4 Rc7 41.Re2 Rc4 42.Nf3 Ba7 43.Nd2 Rc2 44.Kf1 Bb6 45.Nf3 Re2 46.Ke2 Kf6 47.Nh4 Kg5 48.Ng2? f5?? 49.h4? Kg4–+ 50.Kf1 Kg3 51.Ne3 Kh4 52.Nd5 Bd4 53.Ne7 Kg4 54.Ng6 h4 55.Kg2 1–0. mihai740609 – vihor13, kurnik, 2011.

6.d4 a6 7.c4 dc4 8.Bc4 b5 9.Be2 Bb7 10.Nbd2 Nbd7 11.0-0 Re8 12.Rc1 c6 13.Qc2 Rc8 14.h3 e5 15.de5 Ne5 16.Rfd1 Nf3 17.Bf3 Nd5 18.Bg7 Kg7 19.Ne4 Qe7 20.Qb2 Nf6 21.Rd6 c5 22.Rf6 Be4 23.Re6 Kf8 24.Re7 Re7 25.Be4 Re4 26.Rc5 Rc5 27.bc5 1–0. barborski – 5minuta, kurnik, 2012.

6.d4 c6 7.c4 Bf5 8.Bd3 Bd3 9.Qd3 Re8 10.c5 Nbd7 11.Nbd2 e5 12.Qc2 e4-/+ 13.Ng1 Nf8 14.Ne2 Ng4 15.h3 Nh6 16.0-0 Ne6 17.a4 Qg5 18.b5 Nf5 19.Kh1 Nh4 20.Ng3 Nf8 21.bc6 bc6 22.Rab1 Rab8 23.Bc3 Nd7 24.Rb8 Rb8 25.Rb1 Rb1 26.Qb1 Qd8 27.Qb7 Nf6?? 28.Qc6+– Nf5 29.Nf5 gf5 30.Qb7 f4 31.c6 fe3 32.fe3 Qd6 33.c7 Qg3 34.c8Q Bf8 35.Qf5 Qe1 36.Qf1 Qh4 37.Qc8 Kg7 38.Nb3 Bd6 39.Qd8 Qg5 40.Qff6 Qf6 41.Qf6 Kf6 42.Nc5 Ke7 43.Ba5 f5 44.Nb7 Bb8 45.Nc5 Kf6?? 46.g4 fg4 47.Nd7 Kg5 48.Nb8 gh3 49.Nc6 Kg4 50.Na7 Kf3 51.Bc7 Ke3 52.Nc6 Kd3 53.a5 e3 54.Nb4 Kd4 55.Bg3 e2 56.a6 Ke3 57.Be1 d4 58.a7 d3 59.a8Q d2 60.Qe8 Kf3 61.Qf7 Ke4 62.Qe6 Kf3 63.Qf5 Ke3 64.Bd2! (64...Kd2 65.Qd3 Ke1 66.Nc2 Kf2 67.Qe3 Kf1 68.Qf3#) 1–0. slavisa99 – Chakra, Caissa.com, 2004.

6.d4 c6 7.Nbd2 Bg4 8.c4 Nbd7 9.Be2 Bf3 10.Bf3 dc4 11.Nc4 Qc7 12.Rc1 b5 13.Nd2 Rac8 14.0-0 e5 15.Rc6 Qd8 16.de5 Rc6 17.Bc6 Ne8 18.Bb5 Ne5 19.Be5 Be5 20.Nf3 Qb8 21.Be8 Re8 22.Ne5 Re5 23.Qd4 Re8 24.Rd1 Qb5 25.Qd7 Qb8 26.g3 Rf8 27.Rc1 Qb6 28.Rc7 a5 29.Rb7 Qa6 30.b5 Qf6 31.Qd4 Qe7 32.Re7 1–0. barborski – amator17, kurnik, 2012.

6.d4 Nc6 7.Nbd2 Bg4 8.h3 Bf3 9.Nf3 e5 (better is 9...Qd6!?=) 10.de5+/- Ne5?? (better is 10...Ne4+/-) 11.Ne5 c5 12.bc5 Qa5 13.Qd2 Qd2 14.Kd2 Ne4 15.Ke1 Nf2 (15...Rfe8 16.Nd3 d4+–) 16.Kf2 Be5 17.Be5 Rfe8 18.Bd4 Rad8 19.Bd3 Rc8 20.Rhf1 Rc5 21.Bc5 b6 22.Bd4 f5 23.Kg1 f4 24.Rf4 g5 25.Rf2 h5 26.Raf1 g4 27.hg4 hg4 28.Rf8! Rf8 29.Rf8 Kf8 30.a4 Ke8 31.c4 dc4 32.Bc4 Kd8 33.Bb5 Kc7 34.Kf2 Kb7 35.Bc3 g3 36.Kg1 a5 37.Ba5! ba5 38.Kf1 Kb6 39.Ke2 1–0. Fournier,Frederic (1870) – debyh, Active Blind, 2008.

6.d4 e6 7.Nbd2 b6 8.c4 Bb7 9.Be2 a5 10.b5 dc4 11.Bc4 a4 12.0-0 Bd5 13.Qc2 Nbd7 14.Rfd1 Qc8 15.Rac1 Qb7 16.Re1 Rfc8 17.e4 Bc4 18.Qc4 Nf8 19.Qc6 Qa7 20.Rc2 Ne8 21.d5 Bb2 22.Rb2 ed5 23.ed5 Nd6 24.Ne5 Qb7 25.Ndc4 Qc6 26.bc6 Nc4 27.Nc4 Rd8 28.Rd2 f6 29.d6 cd6 30.Rd6 Rd6 31.Nd6 Ra7 32.Re8 Rc7 33.Nc8 Rc6 34.Ne7 Kf7 35.Rf8 Ke7 0–1. barborski – prikol, kurnik, 2012.

6.d4 Bg4 7.Nbd2 c6 8.Be2 a5 9.h3 Bf3 10.Bf3 ab4 11.ab4 Ra1 12.Ba1 Re8 13.0-0 Nbd7 14.c4 e5 15.de5 Ne5 16.Be2 Qb6 17.Qb3 dc4 18.Nc4 Nc4 19.Bc4 Re4 20.Bf7 Kf8 21.Rb1 c5 22.bc5 Qb3 23.Bb3 Rb4 24.Bc2 Rc4 25.Bd3 Rc5 26.Bd4 Rc7 27.Rb6 Nd5 28.Bg7 Kg7 29.Rd6 Nb4 30.Be4 Nc6 31.Bc6 bc6 32.Kf1 Kf7 33.Ke2 Ke7 34.Rd4 c5 35.Rd5 Ke6 36.e4 c4 37.Kd2 Ra7 38.Rc5 Ra2 39.Ke3 Ra3 40.Kf4 c3 41.f3 h6 42.Rc6 Kd7 43.Rc4 Kd6 44.Ke3 Ra2 45.g4 Rh2 46.Rc3 Rh3 47.Ra3 Ke5 48.Ra5 Kf6 49.Kf4 g5 50.Ke3 Rh2 51.Ra6 Kg7 52.Kd4 Rf2 53.Ra3 Rf1 54.Ke5 Rd1 55.Kf5 Rd7 56.e5 Rf7 57.Ke4 Rf4 58.Ke3 Kf7 0–1. barborski – arquivox, kurnik, 2012.

6.d4 Bg4 7.Be2 c6 8.c4 Bf3 9.Bf3 dc4 10.Qc2 b5 11.Nc3 Nd5 12.g3 Nd7 13.0-0 e5 14.Nd5 cd5 15.Bd5 Rc8 16.de5 Ne5 17.Rad1 Qf6 18.f4 Qe7 19.fe5 Be5 20.Be5 Qe5 21.Qe4 Qb2 22.Qe7 Rce8 23.Bf7 Kh8 24.Be8 Rf1 25.Rf1 1–0. barborski – amator17, kurnik, 2012.

6.Be2 a5 7.0-0 ab4 8.ab4 Ra1 9.Ba1 Nc6 (9...Bg4 10.h3 Bf3 11.Bf3+=) 10.b5 Na7 (10...Nb8 11.Bd4=) 11.Bd4+= b6 12.c4 (12.Nc3 c5 13.Bf6 Bf6+=) 12...Bd7 (12...Bb7 13.cd5 Nd5 14.Qa4=) 13.Qa4 Qa8? (better is 13...Nc8+=) 14.Nc3+– dc4? (better is 14...Qb7+–) 15.Ra1 c5 16.Bf6 (16.Qa7?! Qa7 17.Ra7 cd4 18.Nd4 e5+–) 16...Bf6 17.Qa7 Qa7 18.Ra7 Bc3 (18...Be6 19.e4+–) 19.Rd7 Ba5 20.Re7 c3 21.dc3 Bc3 22.Rb7 Ba5 23.Bc4 Kg7 24.Ng5 Rd8 25.Ne6 (25.Ne6 Kh8 26.Nd8 Bc3 27.Nf7 Kg8 28.Nd8 Kf8 29.Ne6 Kg8 30.Ng5 Kf8 31.Rf7 Kg8 32.Rh7 Kf8 33.Ne6 Kg8 34.Re7 Kh8 35.Ng5 Bg7 36.Rd7 Be5 37.Rh7#) 1–0. kamret (2170) – geordy (1815), GameColony.com, 2003.

6.Be2 a5 7.0-0 ab4 8.ab4 Ra1 9.Ba1 b6 10.Nc3 c5 11.bc5 bc5 12.Qb1 Nc6 13.Bb5 Bd7 (13...Qd6 14.Be2=+) 14.Ne2 (14.Na4 c4=) 14...Qc7 15.d4? (15.c4 dc4 16.Qc2 Na5 17.Bc4 Bg4=) 15...Ne4?? (better 15...Rb8 16.dc5 Qa5-+) 16.dc5 Nc5 (16...Ba1 17.Qa1 Ne5 18.Qe5 Qe5 19.Ne5 Bb5 20.c4 Bc4 21.Nc4 dc4 22.Rc1 Nc5 23.Rc4=) 17.Bg7+= Kg7 18.Ned4 (18.Rd1!? Ne5 19.Bd7 (19.Rd5? Bb5 20.Ne5 Be2-+) 19...Nf3 20.gf3 Nd7 21.Rd5+=) 18...Nd4=+ 19.Nd4 Bb5 (19...Rb8 20.Qa1 e5 21.Bd7 Nd7 22.Nf3=+) 20.Nb5 Qe5 21.Qa1 Qa1 22.Ra1 Rb8 23.Nd4 Ne4 (23...Kf6 24.Kf1=+) 24.f3 Nd2 25.Ra7 Kf8 (25...e5 26.Ne6 Kf6 27.Nc7=) 26.Kf2 Nc4 27.Re7 Ke7 28.Nc6 Kd6 29.Nb8 Nb6 (29...Na3!?=) 30.Na6 Nc4 31.Nb4 Kc5 32.Nd3 Kb5 33.Ke2 Na3 (33...h6+/-) 34.Kd2 (better 34.Ne5!?+/-) 34...Nc4= 35.Kd1? (better 35.Kc3!? Ne3 36.g4=) 35...Ne3-/+ 36.Kd2 Ng2 37.Kc3 Nh4 38.f4 (38.Ne5 g5-/+) 38...Kc6 (38...Nf3 39.h3-+) 39.Kd4 (39.Ne5 Kc5-/+) 39...Kd6 40.Ne5 Nf5 (40...f6 41.Ng4 Ke6 42.Ne3-+) 41.Kd3-/+ f6 42.Nf3 h5 43.h3 (43.c3 Kc5-+) 43...Ne7 (43...Ng7 44.Ke3-+) 44.Nh4 (44.Ke3 Kc5-/+) 44...g5-+ 45.Nf3 (45.fg5 fg5 46.Nf3 g4 47.hg4 hg4-+) 45...g4 (45...gf4!? 46.c4-+) 46.hg4 hg4 47.Nh4 (47.Nd4 Kc5-+) 47...Kc5 48.Ng2 (48.c3 g3-+) 48...Nf5 49.c3 (49.Kc3 d4 50.Kd3 Kd5-+) 49...Ng3 (better 49...g3-+) 50.Ne3 f5 51.Kc2? (51.Nc2 Nh5 52.Ke3 g3-+) 51...Nh5 (51...d4!? 52.Ng2 Kc4 53.cd4 Kd4 54.Kd2-+) 52.Nf5? (52.Kd2 Ng7-+) 52...Nf4 (better 52...g3 53.Nh4 Nf4-+) 53.Ne3?? (better 53.Kd2-+) 53...g3 54.Ng4 (54.Kb2-+) 54...g2 55.Ne5 g1Q 56.Nd3 (56.Nd7 Kd6 57.Nb8 Qa1 58.Nc6 Qa2 59.Kc1 Ne2 60.Kd1 Nc3 61.Kc1 Ne4 62.Nd8 Qd2 63.Kb1 Nc3 64.Ka1 Qc1) 0-1. blitzbullet (2400) - BreakRules (2300), Rated Bullet game, lichess.org, 2018.

6.Be2 a6 7.0-0 b5 8.d3 Bb7 9.Nbd2 Nbd7 10.c4 dc4 11.dc4 c6 12.cb5 cb5 13.Rc1 Nb6 14.Qc2 Qd5 15.Rfd1 Qh5 (15...Rac8 16.Qb1=) 16.Nf1 (better is 16.Nd4!? Qd5 17.Bf3+/-) 16...Rac8 17.Qb1 Qg4 18.Ng3 Qe6 19.Nd4 Qd7 (better is 19...Rc1!? 20.Qc1 Qc8=) 20.Nb5+/- Qb5?? (better is 20...Rc1 21.Qc1 Nbd5+/-) 21.Bb5+– (21.Bb5 ab5 22.Rc8 Rc8 23.Bf6 Bf6 24.Ne4 Be4 25.Qe4+–) 1–0. Fournier,Frederic (2000) – boy100 (1795), Active (5/0), 2005.

6.Be2 b6 7.0-0 Bb7 8.d3 Nbd7 9.Nbd2 c5 10.c4 Qc7 11.Rc1 e5 12.cd5 Nd5 13.bc5 bc5 14.d4 Qb6 (14...Rfc8!?+=) 15.Nc4+/- Qe6 16.Nce5 Rac8 17.Nd7 Qd7 18.Ne5 Qd6 (18...Qe7!?+/-) 19.dc5+– Rc5 20.Rc5 Be5 (20...Qc5 21.Nd7 Qa5 22.Nf8 Bb2 23.Qb3+–) 21.Bd4 Re8 22.f4 Bd4 23.Qd4 Qe6 24.Bc4 Qe3 25.Qe3 Ne3 26.Re1 Re4 27.Bb3 Ng2 28.Re4 Be4 29.Rc7 Nf4 30.Ra7 Nh3 31.Kf1 h5 32.Rf7 Bf5 33.Rf5 (33.Rf5 Kg7 34.Rf7 Kh6 35.a4+–) 1–0. Kuhmann,Heinz – Schweiger,Hashem, Erlangen op, 2003.

6.Be2 b6 7.d4 Nbd7 (7...a5 8.Nc3=) 8.c4 dc4 9.Bc4 Bb7 10.0-0 Ne4 11.Qc2 Ndf6 (11...Nd6 12.Be2=) 12.Ne5 e6 (12...a5 13.b5+=) 13.Bd3+= Rc8 (13...Nd6 14.Nd2+=) 14.b5 Qd6? (better is 14...Nd6+=) 15.f3+– Ng5 16.h4 Nd5 (16...Nf3 17.gf3 (17.Nf3?! Ng4 18.e4 Ne3+/-; 17.Rf3?! Bf3 18.gf3 Nd5+/-) 17...Nd5 18.Qf2+–) 17.Qe2 (17.hg5?! Ne3 18.Qf2 Be5 19.Qe3 Bh2 20.Kh1 Bf4+/-) 17...f6 (17...Nf3 18.Rf3 (18.gf3?! f6 19.Nc4 Qg3 20.Qg2 Qh4+/-; 18.Nf3?! Bh6+–) 18...f6 19.Nc4+–) 18.Nc4 (18.hg5 fe5 19.Nd2 ed4-/+) 18...Qg3 (18...Nf3 19.Rf3 (19.gf3?! Qg3 20.Qg2 Qh4+/-) 19...Qd7 20.Rh3+–) 19.hg5 fg5 (19...Qg5 20.Nc3+–) 20.Nbd2 Nf6 21.Qe1 (21.Ne5 Qh4 22.Bc4 Rce8+–) 21...Qe1 22.Rfe1 g4 23.Ne5 gf3 24.Ndf3 Bh6 (24...Be4 25.Rac1 Rfe8 26.a4+–) 25.a4 Bf3 (25...Kg7 26.Ba3 Rfe8 27.Rac1+–) 26.gf3 Nd5 27.f4 Bg7 28.Nc6 Ra8 29.Kf2 Bf6 (29...Rf7 30.Rh1+–) 30.Rh1 Kg7 (30...Rf7 31.Rag1+–) 31.Kf3 h6 (31...Rf7 32.Bc4 Raf8 33.Rag1+–) 32.Rag1 g5 33.Rh4 Ne7 (33...Bd8 34.Ba3 Rf7 35.Ne5+–) 34.Ne7 Be7 35.d5 Kf7 (35...Bf6 36.Bf6 Rf6 37.de6 Rg8+–) 36.Rh6 Ke8 (36...ed5 37.Bg6 Ke6 38.Be8 Rf6 39.f5 Kd6 40.Bf6 Re8 41.Bg5 Kd7 42.Rh7+–) 37.Bg6 Kd8 38.de6 gf4 39.ef4 Bd6 40.Bf6! Rf6 41.f5 Kc8 42.Rh7 Kb7 43.e7 Be7 (43...a6 44.Re1 ab5 45.ab5 Be7 46.Ree7+–) 44.Re7 Raf8 (44...a6 45.Rc1 Rc8 46.Ke4 ab5 47.ab5+–) 45.Kf4 (45.Ke4 Rd8 46.Rc1 Kb8 47.Rcc7 Rd1 48.Rb7 Ka8 49.Ra7 Kb8 50.Reb7 Kc8+–) 45...a6 (45...Kc8 46.Kg5 c6 47.Rc1+–) 46.Rc1 Rc8 (46...ab5 47.ab5 Kb8+–) 47.Ke5 1–0. omnipotent00 (2250) – jimmiels (1745), gameknot.com, 2014.

6.Be2 c5 7.0-0 cb4 8.ab4 a6 9.b5 Bf5 10.Bf6 (10.Nc3 Qd7+=) 10...Bf6 11.c3 Nd7 (11...Qd6 12.Nd4=) 12.ba6 ba6 13.Ra6 Ra6 14.Ba6 Qa5 15.Be2 e5 16.d4 e4 (16...Rb8!? 17.Nfd2 Qc7+=) 17.Nfd2+/- Rc8 18.c4 Be6 19.cd5 (19.c5 Qa8+/-) 19...Bd5 20.f3 ef3 21.Bf3 Bf3 (21...Bg5!? 22.Qe1 Rc2+/-) 22.Qf3+- (22.gf3?! Qg5 23.Kf2 Qh6=) 22...Bg7?? (22...Qa2 23.Ne4 Be7 24.Nec3+-) 23.Ne4 (better 23.Qf7 Kh8 24.Qd7+-) 23...Qd5 (better 23...f5!?+-) 24.Nbc3 Qe6 25.Ng5 (25.Qf7! Qf7 26.Rf7 Kf7 27.Nd6 Ke6 28.Nc8 Nf6+-) 25...Qe7 26.Nd5?? (26.Qf7 Qf7 27.Rf7+/- (27.Nf7? Rc3 28.Rf3 Bd4 29.Nh6 Kg7 30.Rf7 Kh6 31.ed4 Nb6-+)) 26...Qe8?? (better 26...Qg5 27.h4 Qd8 28.Qf7 Kh8-/+) 27.Qf7 Qf7 28.Rf7 Bh6 (28...Rc1 29.Kf2 Nf8 30.Kg3+-) 29.Rd7 (29.Ne7 Kh8 30.Rh7) 29...Bg5 30.Kf2 Rc2 31.Kf3 h5 32.g3 (32.h3 Kf8+-) 32...h4? (32...Rh2 33.Rb7 Rd2+-) 33.gh4 Bh4 34.h3 Bg5 35.Kg4 (35.e4 Rc1+-) 35...Bh6?? (35...Rg2 36.Kf3 Rc2+-) 36.Nf6 Kf8 37.e4 Rg2 38.Kf3 Rc2 (38...Rh2 39.Kg3 Rd2 40.e5+-) 39.e5 Bg7 (39...Rc3 40.Kg4 Rc1 41.Nh7 Kg8 42.e6 Rg1 43.Kh4+-) 40.Ke4 (40.Ne4!? Rc4+-) 40...Bf6 41.ef6 Re2 42.Kd5 Rf2 43.Ke5 Re2 44.Kd6 (44.Kf4!? Rh2+-) 44...Rf2 45.f7! Rf7 (45...Re2+-) 46.Rf7 Kf7 47.d5 Kf6 48.Kc7 g5 49.d6 Ke6 (49...g4 50.hg4 Kg5 51.d7+-) 50.d7 g4 51.d8Q (51.hg4 Ke5 52.d8Q Ke4 53.g5 Kf4 54.g6 Ke5 55.g7 Kf4 56.g8Q Ke5 57.Qgd5 Kf4 58.Q8g5) 51...gh3 52.Qh4 Ke5 53.Qh3 (53.Qh3 Kf4 54.Qe6 Kf3 55.Kd6 Kg3 56.Qe3 Kg2 57.Ke5 Kh2 58.Kf4 Kg2 59.Qd2 Kh3 60.Kf3 Kh4 61.Qh6) 1-0. black_bishop_88 (2550) - awisepawn (2385), lichess.org, 2020. (=1.a3 d5 2.b4 Nf6 3.Bb2 g6 4.Nf3 Bg7 5.e3)

6.Be2 Nc6 7.0-0 Re8 8.d3 e5 9.b5 Na5 10.Be5 Ng4 11.Bg7 Kg7 12.Qd2 c6 13.bc6 Nc6 14.h3 Nge5 15.Qc3 f6 16.Nbd2 Nf7 17.Rab1 a6 18.Nd4 Nd4 19.Qd4 b5 20.c4 dc4 21.Qd8 Rd8 22.d4 Bb7 23.Bf3 Rab8 24.Bb7 Rb7 25.Ne4 Rc7 26.Nc5 Rc6 27.Rfc1 Ng5 28.Rc3 f5 29.h4 Ne4 30.Ne4 fe4 31.g3 Kf6 32.Rb4 h5 33.a4 Rb6 34.a5 Rb7 35.Kg2 Ke6 36.Kh3 Rf8 37.Kg2 Rbf7 38.Rb2 Kf5 39.Re2 Kg4 40.Rcc2 g5 41.hg5 Kg5 42.Red2 h4 43.gh4 Kh4 44.Rc1 Rg7 45.Kf1 Kg4 46.Ke2 Kf5 47.d5 Rg2 48.Kf1 Rh2 49.Rcd1 Ke5 50.d6 Rd8 51.d7 Rh6 52.Rd5 Kf6 53.Rd6 Kg7 54.Rh6 Kh6 55.Rd6 Kg7 56.Ke2 Kf7 57.Ra6 Rd7 58.Rb6 c3 59.Rb5 Rd2 60.Ke1 Ra2 61.Rc5 c2 62.Kd2 c1Q 63.Kc1 Rf2 64.Re5 Rf1 65.Kd2 Ra1 66.Re4 Ra5 67.Ke2 Ra2 68.Kf3 Ra1 69.Re5 Kf6 70.Re8 Rf1 71.Ke4 Re1 72.Rf8 Ke7 73.Rf3 Ke6 74.Kf4 Kf6 75.e4 Rc1 76.Re3 Rc4 77.Kf3 Ke6 78.e5 Rh4 79.Re4 Rh5 80.Kf4 Rf5 81.Kg4 Rf1 82.Rf4 Rg1 0–1. Phomopsis (1735) – Yoanica (1745), lichess.org, 2020.

6.Be2 Re8 7.0-0 Nbd7 8.d3 e5 9.Nbd2 b6 10.c4 Bb7 11.Qc2 c5 12.cd5 Nd5 13.Nc4 b5? (better is 13...Qc7 14.bc5 Nc5=) 14.Nd6+– Qc7 15.Ne8 (15.Nb5?! Qb6 16.Nc3 cb4 17.ab4 Nb4=; 15.Nb7?! Qb7 16.bc5 Nc5+=) 15...Re8 16.bc5 Nc5 17.Rac1 Rc8 18.d4 ed4 19.Bd4 Bd4 20.Nd4 Ne6? 21.Qc7 Rc7 22.Ne6 Rc1 23.Rc1 fe6 24.Bf3 Kf7 25.Bd5 Bd5 26.Rc7 Kf6 27.Ra7 Bc4 28.Rh7 g5 29.f3 e5 30.Kf2 Kg6 31.Rb7 Kf5 32.e4 Kf4 33.g3# 1–0. ejdrzej (1745) – mirz22, kurnik, 2012.

6.Be2 Bg4 7.0-0 Re8 8.d3 a6 9.Nbd2 b5 10.h3 Bd7 11.Ng5 e5 12.c3 Bc6 13.Qb3 Bb7 14.e4 c6 15.ed5 cd5 16.Bf3 h6 17.Nf7 Kf7 18.c4 bc4 19.dc4 e4 20.Be2 h5 21.cd5 Bd5 22.Bc4 Bc4 23.Qc4 Kf8 24.Qc5 Kg8 25.Nc4 Nbd7 26.Qe3 Kh7 27.Nd6 Re6 28.Rad1 Qc7 29.Bc1 Rd6 30.Rd6 Qd6 31.Qg5 Rc8 32.Bf4 Qd5 33.Qg3 Qf5 34.Qe3 Nd5 35.Qa7 Nf4 36.Rd1 Qg5 37.g3 Nh3 38.Kh2 Nf2 39.Rd7 Qf6 40.Rf7 Qb2 41.Rf2 Rc2 42.Kg2 Rf2 43.Qf2 Qa3 44.Qc5 e3 45.Kf3 Qd3 46.Qe3 Qe3 47.Ke3 Bf6 48.Kd3 g5 49.Kc4 h4 50.gh4 gh4 51.Kc5 h3 52.Kb6 Bc3 53.Ka6 Bb4 54.Kb5 Be1 55.Kc4 h2 56.Kd3 h1Q 0–1. Adjailton (1775) – zefar (1700), lichess.org, 2019.

6.h4 c5 7.bc5= Nc6 (7...Qa5 8.c4=) 8.Nc3 (8.h5 Qa5+=) 8...e5 9.Ra2 (9.h5 Nh5 10.Nb5 Bg4=) 9...h6 (9...d4 10.Nb5=+) 10.Qa1 (10.Be2 d4 11.ed4 ed4=+) 10...Be6 11.d4 ed4 12.ed4 Re8 13.Be2 Bg4 14.Nd1 Ne4 (14...Bf3 15.gf3 Qa5 16.Bc3=+) 15.Ne3 Bc8 (better 15...Ng3! 16.fg3 Re3=+) 16.h5= g5 17.c4 (17.0-0 Ng3 18.fg3 Re3=) 17...dc4 Now all is on d4 18.d5? (18.Nc4 Be6 19.0-0 g4-/+) 18...Bb2 (better 18...c3 19.Bc1 Ne7–+) 19.Qb2= Ne7 (19...c3 20.Qc2 Nb8 21.0-0=) 20.Bc4+= (worse 20.Nc4 Nd5 21.Qd4 Nf4 22.Qd8 Rd8-/+) 20...Nf5 21.Ng4 (21.0-0 Ne3 22.fe3 Nc5+–) 21...Neg3 (21...Nc5 22.Kd1 Re6 23.Re1=) 22.Kd1= Nh1 (better 22...Ne3! 23.Ne3 Nh1+=) 23.Nf6+– Qf6?? (23...Kf8 24.Ne8 Ke8 25.Qh8 Kd7 26.Ne5 Kc7 27.d6 Nd6 28.Qd8 Kd8 29.cd6 Be6 30.Be6 fe6+–) 24.Qf6+– a5 (24...Nf2 25.Rf2 Ne3 26.Kd2 Ng4+–) 25.Ne5 (25.Ne5 Re5 26.Qe5+–) 1–0. FeegLood (2600) – BPlyr (1940), lichess.org, 2015.

6.d4 Nbd7

7.c4 a5 8.Nbd2=.

7.c4 dc4 8.Bc4 b6 (8...Nb6!? 9.Bd3 Nbd5=) 9.Nbd2 Bb7 10.0-0 c5 11.dc5 bc5 12.bc5 Nc5 13.Qe2 Nce4 14.Ne4 Ne4?? (14...Be4 15.Rfd1 Qa5 16.Nd2+=) 15.Rfd1 (better is 15.Bg7 Kg7 16.Qb2 Nf6 17.Qb7+–) 15...Qc7 16.Bg7 Kg7 17.Bd3 Nc3+= 18.Qb2 Kg8 19.Rdc1 Rac8 20.Rab1 Bf3-/+ 21.gf3 Qa5 22.h4? Nb1–+ 23.Rb1 Qc3 24.Qe2 Qa3 25.h5 Qd6 26.hg6 fg6 27.f4 Qf6 28.Qg4 Rcd8 29.Be2 Qf5 30.Bc4 Kg7 31.Qh4?? Qf6 32.Qh3 e5?? 33.Kg2 ef4 34.Rh1 h5 35.ef4 Qf4 36.f3 Rd2 37.Kf1 Rd1 38.Kf2 Rh1 39.Qd7 Kh6 40.Bd3 Qf3# 0–1. Slavisa2 – Schnick, Live Game Caissa's Web, 2004.

7.c4 c6 8.Nbd2 Re8 9.Qb3 e6 10.Rc1 Qe7 11.Be2 Nb6 12.0-0 dc4 13.Nc4 Nc4 14.Bc4 Bd7 15.Rc2 Nd5 16.Bd3 Rac8 17.Rfc1 a6 18.g3 Rcd8 19.Kg2 Bc8 20.e4 Nf6 21.a4 Nd7 22.Ba3 Nb8 23.e5 Qd7 24.b5 ab5 25.ab5 Qd5 26.Bd6?? Qb3–+ 27.Rc3 Qa4 28.bc6 Nc6 29.Be4 Bd7 30.Rc4 Qb5 31.Rc5 Qa6 32.Ng5 Bf8 33.Bc6 Bc6 34.Rc6 bc6 35.Bf8 Rf8 36.Nf3 Rc8 37.h4 Qa3 38.Rd1 Rfd8 39.h5 c5 40.hg6 hg6 41.Rh1 cd4 42.Nh4 d3 43.Nf3 d2 44.Nd2 Rd2 45.Rh4 Qa2 46.Rf4 Rcc2 47.Kh3 Rf2 48.Kg4 Rf4 49.gf4 Rg2 50.Kf3 Qf2 51.Ke4 Qe2 52.Kd4 Qd2 53.Kc4 Qc2 54.Kb5 Rd2 55.Kb4 Rd4 56.Kb5 Qc4 57.Kb6 Qb4 58.Kc6 Rc4 59.Kd7 Qb7 60.Kd8 (60.Kd8 Rc8; 60.Kd6 Qc7). futsalboy (1665) – marcelfm, kurnik, 2011.

7.c4 Re8 8.Nbd2 c6 (8...a5 9.Bd3=) 9.Be2+= Ne4 (9...dc4 10.Nc4 h6 11.0-0+=) 10.0-0 (10.Ne4 de4 11.Nd2 f5+=) 10...e5 (10...Nd2 11.Qd2 dc4 12.Bc4+=) 11.de5 (11.cd5 cd5 12.de5 Ne5 13.Be5 Be5 14.Ne5 Re5 15.Ne4 Re4+/-) 11...Ne5 12.Ne5 (12.Be5 Be5 13.Ne5 Re5 14.Ne4 Re4 15.cd5 Qd5 16.Qd5 cd5+/-) 12...Be5+= 13.Be5 Re5 (13...Nd2 14.Qd2 Re5 15.Qc3+=) 14.Nf3 (14.Ne4 Re4 15.cd5 Qd5 16.Qd5 cd5+/-) 14...Re8 (14...Nc3 15.Qd3 (< 15.Ne5 Nd1 16.Rfd1 Qe7-/+) 15...Ne2 16.Qe2=) 15.cd5+= Qd5 (15...Nc3 16.Qc2 Ne2 17.Qe2 Qd5 18.Rfd1=) 16.Qd5+/- cd5 17.Rac1 Be6 (17...Re7 18.Nd4+/-) 18.Nd4 (18.Rc7 b6+/-) 18...Rec8+= 19.Ne6 (19.Bd3!?+=) 19...fe6= 20.Bd3 Nd6 21.f3 (21.b5 Nc4=) 21...Kf7 (21...Nc4 22.Bc4 Rc4 23.Rc4 dc4 24.Rc1=+) 22.Kf2 Ke7 (22...Nc4 23.Bc4 Rc4 24.Rfd1=+) 23.Ke2 (23.e4 Nc4=) 23...Kd7 (23...Nc4 24.Rc3=) 24.Kd2 (24.Rfd1 b5=) 24...Rc1 (24...b5 25.g4=) 25.Rc1= Rc8 (25...b5 26.Rc5 Nc4 27.Ke2=) 26.Rc3 (26.Rc8 Kc8 27.e4 b5=) 26...Rc3 (26...b5 27.Rc8 Kc8 28.Kc3=) 27.Kc3 (27...e5 28.a4=). uno (1800) – guest394, ICC, 2003.

7.Bd3 Nb6=.

5.a3 a5

6.Bd3 0-0 7.0-0 e5 (7...h6 8.b5=) 8.Be5 Nc6 9.Nc3 Ne5 10.Ne5 Ne4 11.f4 (11.Ne4? de4 12.Be4 Be5–+; worse is 11.Be4 de4 12.f4 ab4 13.ab4 Ra1 14.Qa1 Qd2+=) 11...Nc3 12.dc3 Be5 13.fe5 Qg5 14.Qf3 Qe5 15.ba5 Ra5 16.c4 Be6 17.cd5 Bd5 (worse is 17...Rd5 18.Be4 Rd2 19.Bb7 Rc2 20.a4=) 18.Qf4 Bc6 19.e4 b6 20.Qe5 Re5 21.Rf4 Kg7 22.Kh1 Rfe8 (22...f6 23.h4-/+) 23.Raf1+= R8e7 24.Bc4 Attacks the backward pawn on f7 24...Be8 25.Bd3 Ra5 26.Ra1 c5 27.Bc4 b5 28.Bd5 b4 29.Rf3 Rea7 30.g3 Ra3 31.Raa3 (31.Raf1!?-/+) 31...ba3–+ 32.Rf1 Ba4 33.c3 Bb5 34.Ra1 Kf6 35.c4 Bd7 36.Ra2 (36.Kg2 a2–+) 36...Bg4 (36...Be6 37.Kg2–+) 37.Kg2 Ke5 38.Kf2 Kd4 39.Kg2 Kc3 40.h3 Bd1 41.Ra1 Bc2 42.e5 Kb2 Black intends a2 43.Rf1 a2 0–1. adriamaci (1865) – eekan (2035), gameknot.com, 2010.

6.Be2=.

5.a4 0-0

6.b5 Bg4 7.h3 Bh5 8.g4 Ng4 9.Bg7 Nf2 10.Kf2 Kg7 11.Be2 Bf3 12.Bf3 f5 13.Nc3 d4 14.Bb7 dc3 15.dc3 Qd1 16.Rad1 f4 17.Ba8 fe3 18.Ke3 Rf6 19.Bd5 Rd6 20.c4 Nd7 21.Be4 Nc5 22.Rd6 cd6 23.a5 Kf6 24.Kd4 e5 25.Kd5 Ke7 26.Rf1 Ne4 27.Ke4 Ke6 28.Rf8 h5 29.Ra8 g5 30.Ra7 g4 31.hg4 hg4 32.Rg7 g3 33.Rg3 d5 34.cd5 Kd6 35.c4 Kc5 36.a6 Kc4 37.a7 Kb5 38.a8Q Kc4 39.Qc6 Kb4 40.Rc3 Ka5 1–0. Abdullaevich – sanchetta, lichess.org, 2019.

6.c4 dc4 7.Bc4 Nc6 8.b5 Nb4 9.Ba3 Nd3 10.Bd3 Qd3 11.Nc3 Ng4 12.Rc1 Bf5 13.h3 Ne5 14.Ne5 Be5 15.Qe2 c6 16.f4 Bc3 17.Rc3 Qb1 18.Rc1 Qa2 19.Be7 Rfe8 20.Bc5 Rad8 21.Kf2 Rd2 22.Qd2 Qd2 23.Kg3 Be4 24.Rhg1 Bg2 25.Rg2 Qc1 26.Ba7 cb5 27.ab5 Qe1 28.Rf2 Re3 29.Kg2 Ra3 30.Bc5 Qe4 31.Kf1 Ra1 0–1. Chess4Win (1780) – MohamedTarek2420 (1740), lichess.org, 2020.

6.Be2 Nbd7 7.a5 c5 8.bc5 (8.b5 a6=) 8...Nc5 9.0-0 Bg4 10.d3 (10.Be5 Nfe4 11.Bg7 Kg7=) 10...b6 (10...Rc8 11.Be5=) 11.h3 (11.Nbd2 ba5 12.Bf6 Bf6=) 11...Bf3 (11...Bf5 12.Be5=) 12.Bf3 ba5 13.Nd2 Rb8 (13...Rc8 14.Be5=) 14.Bf6 Bf6 15.d4 Na6 (15...Nb7 16.c4 e5 17.de5 Be5 18.Rb1+=) 16.Qe2+= Nb4 17.c3 Nc6 18.c4 e6 (18...e5 19.Bd5 Nb4 20.Ne4 Nd5 21.cd5 ed4 22.Nf6 Qf6 23.ed4=) 19.Rfc1 Qd6 (19...Nb4 20.Ra4+=) 20.cd5 ed5 21.Qd1 (21.Rc5 Qc5 22.dc5 Ba1 23.Bd5 Rfc8+=) 21...Bd8 22.Nb3 Bb6 23.Nc5 Rfc8 24.Na6 Ra8 25.Qc2 Kg7 26.Qb3 Ne7 27.Qb2 Kg8 28.Qb5 f5 29.g3 Rc1 30.Rc1 g5 31.Nc5 Rc8 32.Rc3 Rb8 33.Kg2 Kg7 34.Qa4+= Kg8 35.Nd7+/- Rd8 36.Ne5 f4 37.Qc2 Kg7 38.Nc6 Nc6= 39.Rc6 Qd7 40.Bg4 Qf7 41.Be6 Qf8 42.Qb3 fe3 43.fe3 Qe8 44.Bd5 a4 45.Qc4+/- a3 46.e4 Qe7 47.Re6+/- Qf8 48.Qa4 Kh8 49.Re5 a5 50.Qd1 Qb4 51.Qf1+/- Rf8 52.Re8 Kg7 53.Rf8 Qf8 54.Qc1 h6 55.Qd1 a2 56.Qa4= Qd8 57.g4+= Kh7 ½-½. pierre - laserlight, ChessHere.com, 2005.

6.Be2 Bf5 7.0-0 c6 8.d3 Re8 9.Nbd2 Bg4 (9...Qd6 10.Rb1=) 10.c4+= Nbd7 11.cd5 (11.h3 Bf3 12.Bf3 e5=) 11...cd5 (11...Nd5 12.Bg7 Kg7 13.Qb3=) 12.h3 Bf3 13.Nf3 (worse 13.gf3 Rc8=+) 13...e5 14.Qb3 Qe7 15.Rac1 Rec8 16.Ba3 (16.Rfd1 Bf8+=) 16...h6 17.b5 Qe6 18.Nd2 (18.d4 e4 19.Nd2 Rab8+=) 18...e4 (better 18...a6!?=) 19.de4+/- Ne4 20.Ne4 Qe4? (better 20...de4 21.Bc4 Qf5+/-) 21.Bf3+- Qf5? (21...Qe8 22.Bd5 Rc1 23.Rc1+-) 22.Bd5 (better 22.Bg4!? Qe5 23.Bd7 Rc1 24.Rc1 Rd8+-) 22...Rc1 23.Rc1 (worse 23.Bc1 Nc5 24.Qc4 Rc8+-) 23...Rb8 (23...Nb6 24.Bb7 Rd8 25.Bc5+-) 24.Bd6 (24.Rc7 Nb6 25.Bf7 Kh7+-) 24...Rd8 25.Rc7 Nc5 (25...Qf6 26.Qa3 Qg5+-) 26.Bf7 (26.Bc5?! Rd5 27.Ba7 Be5+-) 26...Kh7 27.Bc5 Qe5 (27...Rd2 28.e4 Qe5 29.Rc8 Qa1 30.Kh2 Qe5 31.g3+-) 28.Bg6! Kg6 29.Qf7 Kh7 30.Bd4 Rd4 31.ed4 Qd4 32.Rb7 (32.Qf5 Kh8 33.Rc8 Qd8 34.Rd8 Bf8 35.Qf8 Kh7 36.Qf7) 32...Qa1 33.Kh2 Qe5 34.g3 (34.f4 Qc3 35.Qf5 Kh8 36.Rb8 Qc8 37.Rc8 Bf8 38.Qf8 Kh7 39.Qf7) 1-0. allyouneedisluft (2535) - Rotho (2420), Rated Blitz game, lichess.org, 2017.

5.a4 c6

6.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.a4 d5).

6.Be2 0-0 7.c4 e6 8.d4 Nbd7 9.Qb3 Ne4 10.Nbd2 f5 11.c5 a6 12.0-0 g5 13.Rad1 g4 14.Ne1 Ndf6 15.Nb1 h5 16.f3 Ng5 17.Bd3 Qc7 18.Qc2 gf3 19.Nf3 Nf3 20.gf3 Kf7 21.Kh1 Bh6 22.Qe2 Bd7 23.Rg1 Rg8 24.Nc3 Rg1 25.Rg1 Rg8 26.b5 ab5 27.ab5 Qa5 28.b6 Rg1 29.Kg1 Qb4 30.Kf2 Bg5 31.Nd1 Bh4 32.Kg2 Be8 33.e4 fe4 34.fe4 de4 35.Be4 Ke7 36.Bf3 Bg6 37.Bc3 Qb1 38.Nf2 Bf5 39.h3 Qc1 40.Bd2 Qc2 41.d5 cd5 42.Bf4 Qe2 43.Be2 Bf2 44.Kf2 Ne4 45.Kg2 Nc5 46.Bh5 Nd7 47.Bc7 e5 48.Bd1 d4 49.h4 Be4 50.Kf2 Nf6 51.h5 Ke6 52.Bd8 Nd5 0–1. blackiwhite (1630) – dajbuzii (1835), kurnik, 2012.

5.a4 Qd6

6.Nc3 c6 7.b5 0-0 8.Be2 a6 9.0-0 b6 10.Ba3 Qc7 11.a5 ba5 12.b6 Qb6 13.Be7 Re8 14.Bf6 Bf6 15.d4 Nd7 16.Qd2 Be7 17.Rfb1 Bb4 18.Na4 Qd8 19.c3 Bd6 20.c4 Bb4 21.Qc1 Rb8 22.Nc3 Bb7 23.c5+= Bc8 24.Na2 h6 25.Qc2 g5 26.h3 Qf6 27.Qa4 h5 28.Nh2 h4 29.Ng4 Qe6 30.Bd3 Kh8 31.Nb4 ab4 32.Rb4 Rb4 33.Qb4 f5 34.Nh2 g4 35.hg4 fg4 36.Nf1 Qf6 37.Ba6 Ba6 38.Ra6 h3 39.Ra7 Re7 40.Ra8 Nf8 41.Qb8 Rf7 42.Qg3 Qf5 43.Rb8 Ra7 44.e4! Qf6 45.ed5 cd5 46.Ne3 Ra1 47.Kh2 hg2 48.Kg2 Ra7 49.Ng4 Qf5 50.Qh4 Rh7 51.Qf6 Qf6 52.Nf6 Rg7 53.Kh3 Re7 54.Rf8 Kg7 55.Nd5 Kf8 56.Ne7 Ke7 57.d5 Kf6 58.Kg4 Ke5 59.c6 Kd5 1–0. COMP – COMP, 2002.

6.Nc3 c6 7.b5 0-0 8.Be2 a6 9.0-0 b6 10.Ba3 Qc7 11.a5 ba5 12.b6 Qb6 13.Be7 Re8 14.Bf6 Bf6 15.d4 Bg4 16.Qd3 Qc7 17.Rfb1 Nd7 18.e4 de4 19.Ne4 Bg7 20.Ng3 c5 21.c3 cd4 22.cd4 Rab8 23.Rb8 Nb8 24.h3 Bd7 25.Rd1 Bb5 26.Qd2 a4 27.Qa2 Nc6 28.Qb2 a3 29.Qd2 Ba4 30.Rb1 Rd8 31.Qc1 a2 32.Ra1 Bb3 33.Bd1 Bd5 34.Ne5 Be5 35.de5 Qe5 36.Ba4 Nb4 37.Qf1 Nd3! 38.Kh2 Nf2! 39.Ra2 Ba2 40.Qf2 h5 41.Qa2 Rd3 42.Kg1 Qg3 43.Qf2 Qf2 44.Kf2 Ra3 45.Bc6 Rc3 46.Bd5 a5 47.Ke2 a4 48.Kd2 Rc5 49.Be4 a3 50.Bb1 Rg5 51.g4 hg4 52.hg4 0–1. Fritz 6 – Fritz 5.32, 2002.

6.Nc3 c6 7.b5 0-0 8.Be2 a6 9.0-0 b6 10.Ba3 Qc7 11.a5 ba5 12.b6 Qb6 13.Be7 Re8 14.Bf6 Bf6 15.d4 Bg4 16.Qd3 Qc7 17.Rfb1 Nd7 18.e4 de4 19.Ne4 Bg7 20.Ng3 c5 21.c3 cd4 22.cd4 Rab8 23.Rb8 Nb8 24.h3 Bd7 25.Rd1 Bb5 26.Qd2 a4 27.Qb2 a3 28.Qa2 Be2 29.Ne2 Nc6 30.Qc4 Qb7 31.Nc3 Rc8 32.Qd3 Nb4 33.Qd2 Nd5 34.Nd5 Qd5 35.Ra1 Rb8 36.Qf4 Rb3 37.Kh2 a2–+ 38.Qc7 Rb1 39.Qc3 Bh6 40.Ne1 Ra1 41.Qa1 Qb3 42.h4 Kf8 43.h5 gh5 44.f3 Qb1 45.Qa2 Bf4 46.g3 0–1. COMP – COMP, 2002.

6.Nc3 c6 7.b5 0-0 8.Be2 a6 9.0-0 b6 10.Ba3 Qc7 11.a5 ba5 12.b6 Qb6 13.Be7 Re8 14.Bf6 Bf6 15.d4 Bg4 16.Qd3 Qc7 17.Rfb1 Nd7 18.e4 de4 19.Ne4 Bg7 20.Ng3 c5 21.c3 cd4 22.cd4 Rab8 23.Rb8 Nb8 24.h3 Bd7 25.Rd1 Bb5 26.Qd2 a4 27.Qb2 a3 28.Qa2 Be2 29.Ne2 Qd6 30.Rd3 Nd7 31.Kf1= Qe6 32.Ra3 Qa2 33.Ra2 Re6 34.Nc3 Nf6 35.Rb2 Kf8 36.Ne5 Rd6 37.Rb7 Rd4 38.Rf7 Kg8 39.Ra7 Rd6 40.g3 Re6 41.f4 Ne8 42.Kf2 h6 43.Nd5+= Be5 44.fe5 g5 45.g4 Kf8 46.Ne3 Ng7 47.Nc4 h5 48.Ke3 Rc6 49.Kd4 Ne6 50.Kd5 Rc7 51.Rc7 Nc7 52.Kc6 hg4+/- 53.hg4 Ne6 54.Kb6 Nf4 55.Ka6 Kf7 56.Nd2 Ke6 57.Nf3 Nh3 58.Kb5 Nf2 59.Ng5 Ke5 60.Nf3 Kf6 61.g5 Kf5 62.Kc5 Ne4 63.Kd5 Ng5 64.Nh4 Kf6 65.Ng2 Nf3 66.Ne3 Ne5 67.Nc2 Nd3 68.Nd4 Kg5 69.Nb5 Kf5 70.Nd6 Kf6 71.Kd4 Ke6 72.Nb5 Nf4 73.Ke4 Nd3 74.Nd4 Kd6 75.Nf5 Ke6 76.Ne3 Nc5 77.Kd4 Nb3 78.Kc4 Nc1 79.Nd5 Kf5 80.Nc3 Ke5 81.Nd5 Ne2 82.Nb4 Ke4 83.Nd5 Nd4 84.Nc3 Ke5 85.Nd5 Nf3 86.Kc5 ½–½. COMP – COMP, 2002.

5.b5 0-0

6.Be2 c6 7.a4 Bf5 8.0-0 Nbd7 9.d3 Nc5 10.Nbd2 Re8 11.Ne5 Ncd7 12.Ndf3 Ne5 13.Ne5 Nd7 14.f4 Ne5 15.Be5 Be5 16.fe5 c5 17.Bg4 Bd7 18.Qf3 Rf8 19.Qg3 Qc7 20.c4 dc4 21.dc4 Bg4 22.Qg4 Rad8 23.e6 f6 24.Rad1 Rd1 25.Rd1 Rd8 26.Rd7 Rd7 27.ed7 Qd6 28.Qe4 Qd1 29.Kf2 Kf8 30.Qd5 Qc2 31.Kg3 1–0. mila77 (1885) – mamika, kurnik, 2012.

6.Be2 Bd7 7.a4 c6 8.0-0 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 c5? (better is 11...Qc7=) 12.Nd5!+– b6 13.Nf6 ef6 14.d4 f5 15.Rd1 Qe7 16.c4 f4 17.Ne5 fe3+/- 18.fe3 f6 19.Nd7 Qe3 20.Kh1 Nd7 21.dc5 Nc5 22.Bf3+/- Nd3? 23.Bd5?? Kh8= 24.Bd4 Nf2 25.Kg1 Qe2?? 26.Bf2+– Rd8 27.Re1 Qd3 28.Bf3 f5 29.Qd1 Qd1 30.Rd1 Rd1 31.Bd1 Bc3 32.Bb6 Kg7 33.c5 Kf6 34.c6 Kg5 35.c7 Kf4 36.c8Q h5 (36...h5 37.Qc3 Kg5 38.Bd8 Kf4 39.Qd4#; 36...Bf6 37.Qc7 Be5 38.Qc1 Ke4 39.Qc4 Bd4 40.Qd4#) 0–1. typ48 – srypek21, kurnik, 2011.

5.Bb5 c6

6.Ba4 0-0 7.Bb3 (7.0-0 b5 8.Bb3 a5=+) 7...Bg4 (7...Na6 8.a3=+) 8.d3 (8.h3 Bf3 9.Qf3 Qd6=) 8...b5 (8...Na6 9.a3=+) 9.Nbd2 (9.a4 Qd6=) 9...a5 (9...Na6 10.a3=+) 10.c3 a4 11.Bc2=+ e5 12.0-0 Nbd7 13.a3 Ne8 14.h3 Bf3 15.Nf3 f5 16.c4= e4 17.Bg7+= Kg7 18.de4 fe4 19.Nh2?? bc4=+ 20.Qd4 Qf6-/+ 21.Qd2 Ne5 22.Ng4 Ng4–+ 23.hg4 Nd6 24.f3 ef3 25.Rf3?? Qa1 26.Kh2 Qe5 27.Kh1 Rf3 28.gf3 Re8 (28...Re8 29.Ba4 Qe3 30.Qe3 Re3–+) 0–1. alaamattar (2145) – cmouratidis (2055), net–chess.com, 2006.

6.Ba4 Na6 7.a3=+.

6.Be2 0-0 7.0-0 Nbd7 8.a3 Re8 9.d4 a5 10.Nbd2 Nb6 11.Ne5 Na4 12.Qb1 Nb2 13.Qb2 Nd7 14.f4 a4 15.c4 Nb6 16.c5 Nd7 17.Rae1 Nf6 18.b5 Bd7 19.Bd3 Ng4 20.Ndf3 f6 21.Nd7 Qd7 22.e4 de4 23.Bc4 Kh8 24.Re4 f5 25.Re2 Nf6 26.Ne5 Qc7 27.Nf7 Kg8 28.Nd6 Kh8 29.b6 Qb8 30.Ne8 Qe8 31.Be6 Ne4 32.Qb4 Qd8 33.Rd1 h6 34.g4 Qb8 35.gf5 Qf4 36.Rf1 Qg5 37.Kh1 gf5 38.Rf5 Qh4 39.Qe1 Qe1 40.Re1 Ng5 41.d5 cd5 42.Bd5 Rb8 (43.Re7 Bd4 44.Bb7 Nh3+–; 42...Bd4 43.Bb7 Rg8 44.h4+–). b4_player (2205) – turborago (2040), GameColony.com, 2003.

6.Be2 Nbd7 7.c4 d4 8.Bd4+/- 0-0 9.Nc3 c5 10.bc5 b6 11.cb6+– ab6 12.0-0 Bb7 13.Ne5 Ne5 14.Be5 Qd7 15.d4 Qf5 16.Bf3 Bf3 17.Qf3 Qf3 18.gf3 Nh5? 19.Bg7 Ng7 20.f4 Nf5 21.Rab1 Kg7? 22.Rb6 h5 23.d5 h4? 24.c5 h3 25.c6 Nd6 26.e4 Ra3 27.Nb5 Ra5 28.Nd6 ed6 29.c7 Rc5 30.Rd6 Rc7 31.a4 Rfc8 32.a5 Rc1 33.a6 Rf1 34.Kf1 Rc1 35.Ke2 Rc2 36.Kd3 Ra2 37.Rc6 Rf2 38.a7 Ra2 39.Rc7 Ra3 40.Kc4 Ra4 41.Kb5 Ra3 42.a8Q Ra8 43.d6 Ra2 44.d7 Rd2 45.Kb6 g5 46.fg5 Kg6 47.Kb7 Kg5 48.Kc8 Kf4 (49.d8Q Rd8 50.Kd8 f6+–). sculp – KINGCOBRA, Live Game Caissa's Web, 2006.

5.Qc1 0-0

6.a3 e6 7.c4 dc4 8.Bc4 b6 9.0-0 Bb7 10.Be2 Nbd7 11.d4 Rc8 12.Nbd2 c5 13.bc5 bc5 14.dc5 Nc5 15.Qd1 Bf3 16.Nf3 Qd1 17.Bd1 Nd3 18.Bd4 Rfe8 19.Be2 Nc5 20.Rac1 Nb3 21.Rc8 Rc8 22.Bf6 Bf6 23.e4 Rc2 24.Bd3 Rc3 25.Ba6 Nc5 26.Bb5 Ra3 27.e5 Be7 28.g3 a6 29.Bc6 Ra2 30.h4 Nd3 31.Be4 Nc5 32.Bc6 a5 33.Bb5 a4 34.Nd4 a3 35.Bc4 Rd2 36.Nc6 Bf8 37.Rc1 Ne4 38.Rf1 Rc2 39.Bb5 Bc5 40.Ra1 a2 41.Bd3 Bf2 42.Kg2 Bd4 43.Bc2 Ba1 44.Be4 Bb2 45.Nb4 a1Q 0–1. Adamkosh (1845) – son_kisot (1890), lichess.org, 2019.

6.c4 dc4 7.Bc4 b6 8.0-0 Bb7 9.Be2 Nbd7 10.d4 c6 11.Nbd2 c5 12.bc5 bc5 13.dc5 Rc8 14.Bd4 e5 15.Ne5 Ne5 16.Be5 Ne4 17.Bg7 Kg7 18.Qb2 Kg8 19.Nb3 Qg5 20.Bf3 Nc5 21.Bb7 Nb7 22.Nd4 Nc5 23.Nf3 Qe7 24.Qa3 Qe6 25.Nd4 Qg4 26.Qa7 Ne6 27.Ne6 Qe6 28.Rac1 Rfd8 29.Rc8 Rc8 30.a4 Rc4 31.a5 Qc6 32.Qb8 Kg7 33.Qe5 Kg8 34.h3 Rc5 35.Qb8 Kg7 36.Ra1 Rc1 37.Rc1 Qc1 38.Kh2 Qd2 39.Qe5 Kg8 40.f4 Qa2 41.Qe8 Kg7 42.Qe5 Kg8 43.Qb5 Qd2 44.Qb6 h5 45.a6 h4 46.a7 Qf2 47.a8Q Kh7 48.Qf3 Qg3 49.Qg3 1–0. Adamkosh (1735) – hfljy44 (1750), lichess.org, 2019.

5.Nc3 0-0

6.Rb1 a5 7.b5 c5 8.bc6 bc6 9.Na4 Nbd7 10.c4 (10.Ne5 Qc7 11.Nd7 Bd7= (11...Qd7? 12.Nb6 Qa7 13.Na8 Qa8 14.Be5+–)) 10...Ba6 (10...Rb8 11.d4=) 11.Qc2 Rb8 12.Nd4 Qc8 (12...Rc8 13.d3=) 13.cd5+= Bf1 14.Nc6 (14.Rf1 Nd5 15.Nc6 Ne5 16.Be5 Rb1 17.Qb1 Qc6 18.Bg7 Kg7=) 14...Nd5 (14...Bg2 15.Rg1 Nd5 16.Rg2 Bb2 17.Nb2 Ne5-/+) 15.Rf1= Bb2 (15...Ne5 16.Be5 Rb1 17.Qb1 Qc6 18.Bg7 Kg7=) 16.e4 (better is 16.Rb2!? Rb2 17.Nb2=) 16...Bf6+= 17.ed5 Rb1 18.Qb1 Ne5 (18...e6 19.Qb5 (worse is 19.Na5 ed5 20.Qb5 Qc1 21.Ke2 Re8 22.Kf3 Qd2–+) 19...ed5 20.f3-/+) 19.Ne5 (19.Qe4 Qc7 20.d4 Nc6 21.dc6 Rd8–+ (21...Qh2?! 22.Nb6=)) 19...Be5 20.f4 Bd6 (20...Bg7 21.Qe4+=) 21.Nc3 Qg4 (21...Qc7 22.g3=) 22.Qe4 (22.g3 Rb8 23.Qc2 Qh3=) 22...Rb8 (22...Qh4 23.g3 Qh2 24.Qf3+=) 23.Qf3 (23.g3 Rb2=) 23...Qf5 24.g4 Qc2 25.Ke2 Rb4 26.Qe3 g5 (better is 26...Rc4!? 27.Qd3 Qd3 28.Kd3 Rf4 29.Rf4 Bf4=) 27.fg5+= Rg4 (27...Rb2+=) 28.h3 (better is 28.Rf7! Rg5 29.Qg5 Kf7 30.h3+/-) 28...Rg3 29.Rf3 Rg2 30.Rf2 Rf2 (30...Rg3 31.Rf3 Rg2 32.Rf2=) 31.Qf2 (31.Kf2 Qf5 32.Ke2 Kg7=) 31...Bb4= 32.Qe3 Bc3 33.Qc3 Qa2 34.Qc8 Kg7 35.d6 ed6 36.Qc3 Kf8 37.Qc8 Ke7 38.Qb7 Ke6 39.Qe4 Kd7 40.Qb7 Ke6 41.Qe4 ½–½. Vlashki,Nino (2200) – Filev,Georgi (2375), Sofia BUL, 2009.

6.Rb1 Bg4 7.Be2=.

6.Qc1 c6 7.h4 (7.Be2 Qd6=) 7...h5 (7...Qd6 8.b5=+) 8.Ng5 Nbd7 9.Ne2 (9.Be2 e5=+) 9...e5 10.Ng3 Qe7 11.a3 a5 12.c4 (12.b5!?=+) 12...ab4-/+ 13.ab4 Ra1 14.Qa1 Qb4 15.Bc3 Qd6 16.c5 (16.cd5!? Nd5 17.Be2-/+) 16...Qc5-+ 17.Be2 Re8 18.Qb1 d4 19.Bb4 Qb6 20.Bh5? (20.Qa2 Nd5 21.Bd6-+) 20...c5 (better 20...gh5 21.Nh5 Re7-+) 21.Bg6= fg6? (21...Qb4 22.Bf7 Kh8 23.Qb4 cb4 24.Be8 Ne8 25.ed4 ed4=) 22.Qg6?? (better 22.Qa2 Re6 23.Ba5+/-) 22...cb4?? (22...Qa6 23.Nf5 Qa1 24.Ke2 d3 25.Kd3 Qa6 26.Kc2 Qa4 27.Kc1 Qa1 28.Kc2 Qa4 29.Kc1 Qa1 30.Kc2 Qa4=) 23.Nf5 Nh5 (23...Re7 24.Ne7 Kh8 25.Nf7) 24.Qe8 (24.Nh6! Kh8 25.Ngf7) 24...Nf8+- 25.Qf7 (better 25.Ne7 Kh8 26.Qf7 Qe6 27.Qh5 Qh6 28.Nf7 Kh7 29.Nh6 Bh6 30.Nc8 b3+-) 25...Kh8 26.Qh5 Kg8 27.Qf7 (27.Qf7 Kh8 28.Qg7; 27.Ne7) 1-0. ono2ae (2125) - Arifars17 (2320), EH HUJAN GERIMIS AJE Arena, lichess.org, 2020. (=1.Nf3 g6 2.b4 Bg7 3.Nc3 d5 4.e3 Nf6 5.Bb2)

6.Be2 a5 7.b5=.

6.Be2 a6 7.d4 (7.0-0 Qd6=) 7...b5 (7...Bf5 8.0-0=) 8.h3 (8.a4 Qd6 9.Qd2 Bd7+=) 8...Nbd7 (8...Qd6 9.a3=) 9.Ne5 (9.a4 ba4 10.Ra4 Nb6+=) 9...Bb7 10.f4 (10.0-0 a5 11.Nd3 ab4 12.Nb4 c6=) 10...c6 (10...Nb6 11.0-0=) 11.Bf3 (11.a4 Qc7=) 11...e6 (11...a5 12.a3=+) 12.h4 (12.0-0 a5 13.a3 Qe7 14.ba5 Ra5=+) 12...h5 (12...a5 13.a3=+) 13.g4 (13.0-0 a5 14.a3 Qe7=+) 13...Ne5 (13...hg4 14.Bg4 a5 15.a3=+) 14.de5 (14.fe5 Ng4 15.Bg4 hg4 16.Qg4 a5=) 14...Ng4=+ 15.Bg4 hg4 16.Qg4 f5?? (better is 16...Qe7=+) 17.Qg6+/- Qe8 18.Rg1 (18.Qg3 Kh7+/-) 18...Qg6+= 19.Rg6 Kf7 20.Rg2 (20.Rg3 Rh8=) 20...Rh8= 21.Rh2 Rh7 22.a4 Rah8=+ 23.ab5 cb5 24.0-0-0 Rh4 25.Rg2 d4! 26.Rg7 Kg7 27.Rd4 Bc8 28.Rd6 Kf7 29.Nd1 Ke7 30.Bd4 Rd8 31.Rc6 Bb7 32.Bc5 Kd7 33.Rd6 Ke7?? 34.Rb6+– Ke8 35.Rb7 Rh1 36.Re7 (36...Kf8 37.Rh7 Kg8 38.Rh1+–) 1–0. Schweitzer,Paul (1880) – Reisner,Karl, Seefeld op, 1993.

6.Be2 Bg4=.

6.Ne2 Nbd7 7.Ng3 Re8 8.c4 (8.Be2!?+=) 8...e5 9.cd5 Nd5 10.Qb3 N7b6 11.a4 (11.h4!?+=) 11...a5-/+ 12.ba5 (12.b5 Nb4-/+) 12...Ra5 13.Bb5 (13.Ne4 Bf5 14.Bd3 c5–+) 13...c6–+ 14.Be2 Be6 (14...e4 15.Nd4 Bd7 16.f3–+) 15.Qd1 (15.0-0 Nf4 16.Qb4 Ne2 17.Ne2 Nc4-/+) 15...Qc7 16.Ng5 Bd7 17.e4 h6 18.ed5 (18.Nf7!? Nf4 19.Nd6–+) 18...hg5–+ 19.Bc3 Rd5 (19...Raa8 20.dc6 Bc6 21.Bb5-/+) 20.a5 Nc8 21.Ne4 Nd6 22.Ng5? (better is 22.Nd6!? Qd6 23.Qb3-/+) 22...e4–+ 23.Bg7 Kg7 (23...Rg5 24.Bb2 Rg2 25.Qc2+=) 24.h4 f6 25.Nh3 e3 (worse is 25...Ra5 26.Nf4 Rea8 27.Rb1-/+) 26.fe3 Ne4 (better is 26...Nf5 27.Qa4 Qg3 28.Nf2 Qg2–+) 27.Nf4+= Rd2 28.Qb3 (better is 28.Qc1!?+=) 28...Qe5–+ 29.0-0? (better is 29.Qa3–+) 29...Ng3 30.Rfd1 (30.Rfe1 Rh8 31.Ra4–+) 30...Ne2 (30...Re2?? 31.Rd7 Re7 32.Re7 Qe7 33.Ne2 Ne2 34.Kf2+–) 31.Ne2 Re2 32.Rd7 (32.Re1 Rb2 33.Qc4 c5–+) 32...Kh6 33.Ra2 (33.Rf1 Qe4 34.Rf2 Rf2 35.Kf2 Qf5 36.Kg1 Qd7 37.Qc3–+) 33...Re1 34.Kf2 Re3 0–1. Ivanets,Vladimir – Aronian,Levon (2330), Moscow7, 1995. (=1.Nf3 g6 2.b4 Bg7 3.Nc3 d5 4.Bb2 Nf6 5.e3 0-0)

5.c4 dc4

6.Bc4 Nc6 7.0-0=.

6.Bc4 e6 7.d4 c6 8.a3 0-0 9.Nbd2 Nbd7 10.0-0 Nb6 11.Bd3 Nbd5 12.Qc2 Re8 13.Ne4 Nd7 14.Rfe1 Qc7 15.h3 e5 16.de5 Ne5 17.Ne5 Be5 18.Be5 Qe5 19.Nd2 Qh5 20.Bf1 Bf5? (better is 20...Be6=) 21.e4+– Bh3 22.ed5 Bf5 23.Qc3 (23.Qc5!? Qh6 24.Nc4 cd5 25.Qd5 b6+–) 23...cd5 24.Qf3 Qg5? (24...Qf3 25.Nf3 (25.gf3?! Re1 26.Re1 Kg7+=) 25...Kg7 26.Nd4+/-) 25.Re8 (25.Qd5!? Re1 26.Re1 Rd8+–) 25...Re8 26.Qc3 d4? (better is 26...Qf4+/-) 27.Nf3?? (better is 27.Qd4 Rd8 28.Nf3 Rd4 29.Ng5+–) 27...dc3 28.Ng5 c2 29.Nf3 Rd8 30.Be2 g5 31.Ng5 Rd2 32.Kf1 Bd3 33.Bd3 Rd1 34.Ke2 Ra1 35.Bc2 Ra3 36.Kd2 (36.Nh7?! Ra2 37.Kd1 Rc2 38.Kc2 Kh7+=) 36...h6 37.Nf3 Ra2 38.Nd4 b6 39.Kc3 Ra1 40.g4 Rf1 41.f3 Kg7. Fournier,Frederic (1850) – Slowhand (1840), Active, 2007.

6.Bc4 Bg4 7.Bf7 (7.Qb3 0-0=) 7...Kf7= 8.Ne5 Kf8 (better is 8...Kg8!? 9.Ng4 Ng4 10.Bg7 Nf2 11.Kf2 Kg7=) 9.Ng4+/- Ng4 10.Bg7 Kg7 11.Qg4 Qd7 (11...Qd6 12.Qe4+/-) 12.Qe4 c6 (12...a6 13.Qe5 Kg8 14.d4+/-) 13.0-0 (13.Qe5 Kg8+–) 13...Na6 (13...Rf8 14.Nc3+/-) 14.a3 Rhe8 15.d4 Qf5 16.Nc3 Qe4 (16...Nc7 17.Qh4+–) 17.Ne4 Rad8 18.Rfd1 Rd5 19.Nc5 (19.f4 h6+–) 19...Nc5+/- 20.dc5 Red8 21.Rd5 Rd5 22.Kf1 Kf6 23.Ke2 Rh5 (23...Rg5 24.g3+–) 24.h3 Rg5 25.g3 (25.Rd1 Rg2 26.Rd7 b6+–) 25...Rd5 (25...Rh5 26.h4+–) 26.Rd1 e6 27.Rd5 ed5 (27...cd5 28.a4+–) 28.Kd3 Ke5 (28...h5 29.e4+–) 29.f3 (29.f4 Kf6+–) 29...h5 (29...b6 30.f4 Ke6 31.Kd4+–) 30.h4 b6 31.a4 bc5 32.bc5 a5 33.Kc3 (33.g4 hg4 34.fg4 Ke6+–) 33...Kf5 (33...Ke6+–) 34.Kd4 Kf6 35.e4 de4 36.Ke4 (worse is 36.fe4 Ke6+–) 36...Ke6 37.g4 Kf6 (37...g5 38.hg5 h4+–) 38.gh5 gh5 39.f4 Ke6 40.f5 Kf6 41.Kf4 Kf7 42.Ke5 Ke7 43.f6 Kf7 44.Kf5 Kf8 45.Ke6 (better is 45.Kg6 Kg8+–) 45...Ke8 46.Kd6 Kf7 47.Kc6 Kf6 48.Kd7 Kf5 49.c6 Kg4 50.c7 Kh4 51.c8Q Kg3 52.Ke6 h4 53.Ke5 (53.Ke5 Kf3 54.Qc3 Kg4 55.Qe3 h3 56.Qf4 Kh5 57.Kf5 h2 58.Qh2) 1–0. Sebesta,Petr (1610) – Zurawicki,Jakub, 12th Orlova Open A, 2015.

6.Bc4 0-0

7.0-0 b6 8.Ng5 e6 9.Qb3 h6 10.Nf3 Bb7 11.Nc3 (11.Ne5 a5=) 11...Bf3=+ 12.gf3 Nbd7 (12...Qd2?? 13.Rfd1 Qd7 14.Rd7 Nbd7 15.Ne4+-) 13.f4 a5 (13...c6 14.Rfc1=) 14.b5 Nc5 15.Qc2 Nd5 (15...Rc8 16.Ba3 Re8 17.d4=) 16.d4+= Nb7 (16...Nc3 17.Bc3 Nb7 18.Bd3+=) 17.Bd5+/- ed5 18.Qb3 Qd7 19.Qd5 Qg4 (19...Nd6!?+/-) 20.Kh1+- Nd6 21.Rg1 Qh4 (better 21...Qf5 22.Ba3 Rfd8 23.Bd6 Qd5 24.Nd5 Rd6 25.Nc7 Rad8+-) 22.Rg6 Qf2 (22...Kh7 23.Rg2 Rad8+-) 23.Rag1 Qb2 (23...Kh8 24.Rg7 Qe3+-) 24.Rg7 Kh8 25.Qh5 (25.Qh5 Qg2 26.R1g2 Nf5 27.Qf5 c5 28.Qh7) 1-0. marekt (2025) - ua_ben (1660), gameknot.com, 2014.

7.0-0 Nc6 8.Qb3 Qd6 9.Ng5 Nd8 10.Nc3=.

7.0-0 Nc6 8.Qb3 Bg4 9.Ne5+= Ne5 10.Be5 c6 (10...Qd7 11.f3 Bf5 12.a4+=) 11.a4 (11.d4 Qd7+=) 11...a5 12.b5 c5 13.d4 cd4 14.ed4 (14.f3 Bd7+=) 14...Rc8= 15.Nc3 Nh5 (15...e6 16.d5 Re8 17.Rfe1=) 16.Rac1+= Be5 (16...Nf6 17.h3 Bf5 18.Rfe1+=) 17.de5+/- Qd4 (17...Nf4 18.Nd5 Rc4 19.Qc4 Ne2 20.Kh1 Nc1 21.Rc1+= (worse is 21.Qg4 Qd5 22.Rc1 Qe5+=)) 18.Nd5 Rfe8 (18...Kg7 19.Ne3+/-) 19.Ne3 Kg7 (19...e6 20.f3 (20.Ng4?! Qg4 21.h3 Qf4+=) 20...Bh3 21.gh3+–) 20.Bf7+– (20.Ng4?! Qg4 21.Bd5 Rc1 22.Rc1 Nf4+=) 20...Rc1 21.Rc1 (21.Be8?! Rf1 22.Nf1 Be2 23.Qf7 Kh6 24.Qe7 Bf1=) 21...Rf8 22.Be6 (better is 22.Bc4!?+–) 22...Be6+/- 23.Qe6 Rf7 24.Qc4 (24.Qd5 Qa4 25.Rf1 Nf4 26.Qb7 Qd4+=) 24...Qe5+= 25.Qc3 Qc3 26.Rc3 e5 (26...e6 27.Rc8+=) 27.b6 Nf4 28.Rc5 Nd3 29.Rc7 Nb2 30.Nc4 (better is 30.Ng4 Kf8 31.Ne5+/-) 30...Na4? (30...Nc4!? 31.Rc4 Kf6=) 31.Kf1 (better is 31.Ne5!? Rc7 32.bc7+/-) 31...Kf6+/- 32.Nd6 (32.Ne5 Re7 33.Nc6 Rf7+/-) 32...Rc7 (32...Re7 33.Ne4 Kf7 34.Nd6 Ke6 35.Nb7 Rc7 36.bc7=) 33.bc7+= Nb6 34.c8Q (34.Ke2 a4 35.Kd3 e4 36.Kc2 h6+/-) 34...Nc8 35.Nc8 a4 36.Nd6 (36.Nb6!? a3 37.Nd5 Ke6 38.Nb4=) 36...a3+= 37.Ne4 Ke6 38.Nc3 b5 39.Ke2 b4 40.Ne4?? (40.Kd3 h6 41.Ne4=) 40...a2–+ 41.Nc5 Kd5 42.Nb3 Kc4 (42...Kc4 43.Na1 b3 44.Nb3 Kb3–+) 0–1. Marta,Dominik (1960) – Karacsonyi,Gellert (1710), 18th Pannonia–Nitrokemia Cup, 2013.

7.0-0 Nc6 8.b5 Na5 9.Be2 b6 10.Qc2 (10.d4 a6=) 10...Bb7 (10...a6 11.Be5+=) 11.Bc3 Nd5 12.Bg7 Kg7 13.Nc3 Nb4 14.Qb2 c5 15.Nd5 f6 16.Nb4 cb4 17.Qb4 e5 18.d4 ed4 19.Nd4 Qd5 20.Bf3 Qd7 21.Rfd1 Qc8 22.Rac1 Qe8 23.Qd6 Rd8 24.Qd8!! Bf3 25.Ne6 Qe6 26.Rd7 Kg8 27.Rc8 (27...Qf7 28.Qc7+–) 1–0. MT – guest306, ICC, 2004.

7.0-0 Qd6 8.b5=.

7.0-0 Nbd7 8.Nc3 c5 9.bc5 Nc5 10.d4 Nce4 11.Ne4 Ne4 12.Bd3 Nd6 13.Ng5 h6 14.Ne4 Ne4 15.Be4 Rb8 16.a4 b6 17.Ba3 Re8 18.Qb3 Bb7 19.Bg6 Bd5 20.Bf7 Bf7 21.Qd1 e5 22.Bb2 ed4 23.Bd4 Qg5 24.Bg7 Kg7 25.Qd6 Bd5 26.Qg3 Rbc8 27.Qg5 hg5 28.Rfd1 Be6 29.f3 Re7 30.e4 Rc2 31.h3 Rd7 32.Kh2 Kf6 33.Kg1 Rd1 34.Rd1 Rc4 35.Ra1 Rc5 36.Kf2 Ra5 37.Kg3 b5 38.h4 gh4 39.Kh4 Ra4 0–1. Trkn – neilcousin, itsyourturn.com, 2001.

7.0-0 Nbd7 8.d4 b6 9.Qe2 c6 10.a4 Nd5 11.b5 ½–½. Kaenel,Hansjuerg (2395) – Gheorghiu,Florin (2475), Lenk op, 1995. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4 dc4 6.Bc4 0-0)

7.0-0 Nbd7 8.d4 Ne4 9.Nbd2 Nd2 10.Qd2 Nb6 11.Bb3 Bg4 12.Qe2 Qd7 13.Rac1 c6 14.Rc5 Be6 15.b5 Rac8 16.bc6 Rc6 17.Rc6 Qc6 18.Ba3 Bb3 19.ab3 Re8 20.Rc1 Qd5 21.Qd3 e5 22.e4 Qa5 23.b4 Qa6 24.Qa6 ba6 25.d5 f5 26.ef5 gf5 27.Rc7 Rc8 28.Rc8 Nc8 29.Nh4 Nd6 30.Kf1 Bf6 31.Nf3 Nc4 32.Bc1 Nb6 33.d6 Kf7 34.Ke2 Ke6 35.Ng5 Bg5 36.Bg5 Kd6 37.Kd3 Kd5 38.Be3 f4 39.Bc1 Nc4 40.g4 e4 41.Ke2 f3 42.Kd1 Ne5 43.h3 Nd3 44.Be3 Nb4 45.g5 Ke5 46.h4 Nd5 47.Bd2 Kf5 48.h5 a5 49.Bc1 a4 50.g6 hg6 51.h6 Nf6 52.Bb2 g5 53.Kd2 a5 54.Bd4 a3 55.Kc3 Kg6 56.Kb3 Ng4 57.Ka3 e3 0–1. Hugot – Giustolisi, Dubrovnik 1950.

7.0-0 Ne4 8.Bg7+= Kg7 9.d4 e6 10.Bd3 Nd6 11.Nc3 b6 12.a3 Bb7 13.Be2 Nd7 14.Qc2 a6 15.Rac1 b5 16.Nd2 Qg5 17.Bf3 Rab8 (17...Bf3 18.Nf3 Qh5 19.a4+=) 18.Bb7 Rb7 19.Nce4 Ne4 20.Qe4 Rb6 (20...Ra7!?+/-) 21.Rc7+– Nf6 22.Qf3 Nd5 23.Rc2 f5 24.Rfc1 Rb7 (24...Rd6 25.Qh3+–) 25.Nb3 f4 (better is 25...Rb6+–) 26.e4 Nf6 27.Nc5 Rbf7 (27...Re7+–) 28.Ne6 (28.Ne6 Kh6 29.Ng5 Kg5 30.h4 Kh6 31.Qf4 Kg7 32.Rc7+–) 1–0. Fournier,Frederic (1690) – kalisaris, Active, 2007.

7.0-0 Be6 8.Be6 fe6 9.Nc3 Ne4 (better is 9...Qd6!?+=) 10.Qb3+/- Nc3 (10...Rf3 11.Ne4 Bb2 12.Qb2+/-) 11.Qe6+– Kh8 12.Bc3 Bc3 (12...Qd7 13.Ng5 Bf6 14.Qd7 Nd7 15.Ne6+–) 13.dc3 Rf6 14.Rad1 Qg8?! (14...Re6 15.Rd8 Kg7+–) 15.Qe7 Qf8 (15...Rf7 16.Qe5 Rg7+–) 16.Rd8 Nc6 17.Qf6 Kg8 18.Qf8 1–0. DEFFM – picanello, freechess.org, 2018.

7.0-0 Bf5 8.d4 Nbd7 9.Nc3 Nb6 10.Bb3 e6 (10...Nfd5 11.Nd5 Nd5 12.a3=) 11.a3 (11.Ne5 Nbd5=) 11...Bg4 (11...Nbd5 12.Ne5=) 12.h3+= Bf3 13.Qf3 (< 13.gf3 Nfd5=+) ½–½. Nemeth,Lajos – Simnon,N, HUN–chT3 Hungary, 1994.

7.b5 a6 8.d4=.

7.b5 e6 8.0-0 c6 9.a4 cb5 (9...a6 10.d4+=) 10.ab5 Nbd7 11.d4 b6 (11...Nd5 12.Nc3+=) 12.Qb3 (12.Nc3 Bb7+/-) 12...Bb7+= 13.Nbd2 Nd5 (13...Ne4 14.Ne4 Be4 15.Nd2+/-) 14.Ba3 Re8 15.Ne4 Bf8 (15...Nc7 16.Nfg5 Bf8 17.f3+=) 16.Nd6 Bd6 17.Bd6 N5f6 18.Ng5 (18.Nd2 Nb8 19.Bg3 Bd5+/-) 18...Ne4 (18...h6 19.Nh3+/-) 19.Ne4 Be4 20.f3 Bb7 21.e4 Nf6 (21...Qf6 22.Qb2+/-) 22.Qb4+– a5? (better is 22...Nd7+–) 23.ba6 Bc8 (23...Bc6 24.Bd3+–) 24.a7 Bd7 25.Rfc1 Bc6 (25...b5 26.Be2 Nh5 27.Rc7+–) 26.Bd3 Qd7 27.Be5 (27.Qb6?! Qd6 28.e5 Qf8 29.Qc6 Nd5+–) 27...Nh5 28.Qb6 f6 (28...Rec8 29.Ba6 Rd8 30.Rc6 Qa7 31.Qb4+–) 29.Bb8 Bb7 (29...Rd8 30.Rc6 Qd4 31.Qd4 Rd4 32.Rc8 Kg7 33.Bb5+–) 30.Rc7 (30.Rc7 Qd8 31.Rb7+–) 1–0. DEFFM – GuestQGYG, freechess.org, 2018.

7.b5 Bg4 8.h3 Bf3 (8...Bf5 9.d4=) 9.Qf3+= (worse 9.gf3 a6=) 9...c6 10.a4 a6 11.ba6 Na6 12.d4 Nb4 13.0-0 Rb8 (13...Nfd5 14.Rc1+=) 14.Rc1 b5 (14...Ra8 15.Bc3 Nbd5 16.Bd2=) 15.ab5+– cb5 16.Bf1 Re8 (16...Nbd5!?+–) 17.e4 (17.Rc5 e5 18.de5 Nd7+–) 17...e5 (17...Qd7!?+–) 18.de5+– Nd7 19.Qb3 Nc6? (better 19...Bh6 20.Rc3 Bf8+–) 20.Rc6 Ne5 21.Ra7 Rf8 (21...Re7 22.Rca6+–) 22.Rcc7 Nc4 23.Bg7 Kg7 24.Nc3 Qd4 (24...Qf6+–) 25.Nb5 Rb5 26.Qb5 (26.Bc4?! Rb3 27.Bb3 Qe4=; 26.Rc4 Qf2 27.Kf2 Rb3+–) 26...Nd2 (26...Nd6 27.Qd3 Qd3 28.Bd3+–) 27.Rd7 Qc3 (27...Qe4 28.Qb2 Kg8 29.Qf6 Nf3 30.gf3+–) 28.Qd5 Nf1 29.Rf7 Rf7 30.Qf7 Kh6 31.Qf4 g5 32.Qd6 (32.Qd6 Qf6 33.Qf6 Kh5 34.Rh7) 1–0. Pereira – Londra, internet, 2020.

7.d4 Nc6 8.a3 a6 9.0-0 b5 10.Be2 Bb7 11.Nbd2 a5 12.Qb3 ab4 13.ab4 Ra1 14.Ra1 e6 (14...Qd5!?+/-) 15.Bb5+– Ne7 16.Bd3 Qb8 17.Rb1 Ned5 18.Ba3 Rc8 19.b5 Nb6 20.Bc5 Bd5 21.Qb2 Qb7 22.Qb4 Nfd7 23.e4 Nc5? 24.dc5 Ba2 25.Rc1 Na8 26.e5 Bd5 27.Be4 Be4 28.Ne4 Qd5 29.Nc3 Qd3 30.Qe4 Qd8 31.Rd1 Qf8 32.Qc6 h6 33.h3 g5 34.Ne4 1–0. Fournier,Frederic (1765) – ardito (1715), Active, 2011.

7.d4 Nbd7 8.0-0 b6 9.Nbd2 Bb7 10.Be2 Rc8 11.a3 c5 12.dc5 bc5 13.bc5 Nc5 14.Bd4 Nce4 15.Ne4 Ne4 16.Bg7 Kg7 17.Qd8 Rfd8 18.Nd4 f5?? (18...e5 19.Rfb1 Bd5-/+) 19.Ne6+– Kf6 20.Nd8 Rd8 21.Rfd1 Rc8 22.Bf3 Rc2 23.Be4 Be4 24.Rdc1 Rb2 25.a4 a6 26.a5 Bd3 27.Rc3 Bb5 28.f3 e5 29.Rca3 h5 30.R1a2 Rb1 31.Kf2 g5 32.g3 g4 33.f4 ef4?? 34.ef4+/- Rf1 35.Ke3 Re1 36.Kd4 Re4 37.Kc5 Ke6 38.Rd2 Rc4 39.Kb6 Rc6 40.Kb7 Rc4 41.Re3 Kf7? 42.Re5 Kf6 43.Rd6 Kf7 44.Rf5 Ke7 45.Ra6 Ba6 46.Ka6 Rc2 47.Rh5 Rd2 48.Kb6 Rd6 49.Kb5 Rd5 50.Rd5 (50.Rd5 Kf7 51.a6 Ke6 52.Re5 Kd6 53.a7 Kc7 54.a8Q Kd7 55.Qc6 Kd8 56.Re8) 1–0. Fournier,Frederic (1940) – GRepossi (1720), Active (8/0), 2005.

7.0-0 c6

8.a4 a5 9.b5 cb5 10.Bb5 b6 (10...Bf5 11.d4=) 11.Na3 Ba6 12.Rc1 Bb5 13.Nb5 Na6 14.Ba3 (14.Bd4 Nb4+/-) 14...Nd5+= 15.d4 Rc8 16.Rc8 Qc8 17.Qb3 Qd7 18.Rc1 Ndb4 (18...Rd8 19.Nd2+=) 19.Bb4 Nb4 20.Rc7 Rc8 21.Qc4 (21.Rd7?? Rc1 22.Qd1 Rd1 23.Ne1 Re1) 21...Rc7 22.Qc7 Qf5 (22...Qc7 23.Nc7 e6 24.Nd2+=) 23.Qc1 (23.h3!? Qc2 24.Qe7+/-) 23...Qd3= 24.h3 Nc2 25.Qd2 Qc4 26.Qc3 Qc3 27.Nc3 Na3 (27...e6 28.Nb5+=) 28.Kf1 (28.Nd5 b5 29.Ne7 Kf8+/-) 28...Kf8 29.Ke2 Nc4 30.Kd3 Nd6 31.Nd2 e6 32.Nb5 (32.e4 Ke7+/-) 32...Nc8 (32...Nb5 33.ab5 Bf6 34.e4+=) 33.f4 Ke7 34.g4 Kd7 35.Kc4 (35.e4 Nd6+/-) 35...Ne7+= 36.e4 White prepares d5 36...Nc6 (36...f5 37.Kd3+=) 37.d5 Nd8 38.Kd3 (38.Nf3 ed5 39.ed5 Nb7+/-) 38...Nb7+= 39.Nb3 Bh6 40.f5 gf5 41.gf5 ef5 42.ef5 Bg7 43.Ke4 ½-½. Kochavi,Ori (2285) - Milikow,Elie (2215), Israeli Gifted Players A, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4)

8.a4 Nd5 9.Bg7+= Kg7 10.Qb3 e6 (10...Bg4 11.Ne5 Be6 12.d4+=) 11.e4+/- Nb6 12.Be2 N8d7? (better is 12...f5 13.Nc3 a5+/-) 13.a5+– 1–0. pcmvr – abhailey, net–chess.com, 2017.

8.a4 Nbd7 9.d4 Nd5 10.b5 N7b6 11.Be2 cb5 12.ab5 Bg4 13.Nbd2 h6 14.h3 Be6 15.Nb3 Nf6 16.Nc5 Bd5 17.Nd2 Nfd7 18.Nce4 Re8 19.Nc3 Be6 20.Bf3 Qb8 21.Qe2 Nf8 22.Rfc1 Nh7 23.Nce4 Bd5 24.Nc5 Ng5 25.Bd5 Nd5 26.Nc4 Nc7 27.Na5+– a6 28.b6 Nd5 29.Nab7 Nb6 30.Ra6 Nd5 31.Ra8 Qa8 32.Ra1 Qc8 33.Qc4 Qf5 34.h4 Ne4 35.Qc2 Nc5 36.Qf5 gf5 37.Nc5 f4 38.e4 Nb6 39.e5 Nd5 40.Bc1 f6 41.Ra4 Nb6 42.Ra6+– Nd5 43.Nd3 Rc8 44.Bd2 fe5+= 45.de5 Rc4 46.Ne1 Be5 47.Rh6 Nf6 48.Nf3 Bd6 49.Rg6 Kh7 50.Rg5 Rc2 51.Rf5 Kg6 52.Rb5 Ne4 53.Rd5 Ra2 54.h5 Kh6 55.g4+/- Kg7 56.Rd4 Nf6 57.h6! Kg6 58.g5 Nh7 59.Bf4 Bc5 60.Rd2 Ra4 61.Ne5 (61.Ne5 Kf5 62.g6+–) 1–0. Kaenel,Hansjuerg (2350) – Ilic,Zoran (2375), Bern op, 1989.

8.a4 Bg4 9.h3 Bf3 10.Qf3 Nbd7 11.d4 Re8 12.Nd2 e5 13.de5 Ne5 14.Be5 Re5 15.Rad1 Nd5 16.e4 Nb4 17.Qf7 Kh8 18.Qb7 Nc2 19.Qc6 Rc8 20.Qa6 Rec5 21.Bd5 Bd4 22.Nb3 Rd5 23.ed5 Qd5 24.Nd4 Nd4 25.Qf6 Kg8 26.Rd4 1–0. Abdullaevich (1830) – zozu (1825), lichess.org, 2020.

8.Qb3 b5 9.Be2=.

8.Qb3 Ne4 9.d4 (9.Bg7 Kg7 10.d4 Nd6+=) 9...Nd6+= 10.Nbd2 Nc4 11.Nc4 Be6 12.Qc2 Bc4 13.Qc4 Nd7 14.a4 Nb6 15.Qc2 Nd5 16.Qb3 Nf6 17.Rfc1 e6 18.b5 Qb6 19.Ne5 Rfc8 20.Ba3 (20.Nc4!? Qd8 21.bc6 bc6 22.Ba3+/-) 20...cb5= 21.Qb5 Nd5 22.Qd7 Rc7 23.Rc7 Qc7 24.Qc7 Nc7 25.Nd3 Bf8 26.Rc1 Na6 27.Bf8 Kf8 28.Kf1 Ke7 29.Ke2 f6 30.Kd2 Kd7 31.Rc4 b6 32.h4 Rc8 33.Kc3 Rc4 34.Kc4 Nc7 35.g4 a6 36.Nf4 Ne8 37.f3 f5 38.g5 Nd6 39.Kc3 Nf7 40.Nd3 Kc6 41.Nb4 Kb7 42.Kd3 Nd6 43.e4 a5 44.Nc2 fe4 45.fe4 b5 46.ab5 Nb5 47.e5 Kc6 48.Kc4 a4 49.Nb4+/- Kb6 50.d5 ed5 51.Nd5 Kc6 52.Nb4 Kb6 53.Kd5 a3 54.Kc4 Nc7 55.Kb3 Kc5 56.Nc2? Kd5-/+ ½–½. Partikas,Valentinas A (2375) – Lapse,Andrejs (2240), ICCF corr Baltic Sea tt–7 bd13, 2002.

8.d4 Nbd7 9.Nbd2 Nb6 10.Bb3 Bf5 11.Re1 Ne4 12.Ne4 Be4 13.Nd2 Bd5 14.Bd5 cd5 15.Qb3 Rc8 16.Rac1 Rc1 17.Rc1 Qd6 18.g3 h5 19.Rc5 h4 20.Kg2 Qd7 21.b5 Qf5 22.f3 Bh6 23.a4 Qe6 24.Rc3 Rc8 25.Rc8 Nc8 26.Kf2 Nd6 27.Bc1 Nf5 28.Nf1 Nd4!-/+ 29.ed4 Bc1 30.Qc2 Bg5 31.Qe2 Qb6 32.Qe5-/+ Bf6 33.Qd5 hg3 34.Ng3 Qd4 35.Qd4 Bd4 36.Ke2 Be5 37.Kd3 Bg3 38.hg3 Kg7 39.Kc4 Kf6 40.Kd5 Kf5–+ 41.a5 g5 42.a6 b6?? 43.Kc6 Ke5?? 44.Kb7= Kd6 45.Ka7 Kc7 46.f4 gf4 47.gf4 e6 48.Ka8 f6 49.a7 ½–½. Glazyrin,Igor – Muromtsev,Arthur (2315), RUS–ch U26 Ufa, 2004.

5.c4 c5

6.b5 0-0 7.Nc3+=.

6.b5 a6 7.a4 (7.cd5 0-0=) 7...ab5=+ 8.ab5 Ra1 9.Ba1 b6 (9...Bg4 10.cd5 Qd5 11.d4=) 10.Be2 Bb7 (10...0-0 11.d4=) 11.0-0 0-0 12.d4 cd4 (12...Ne4 13.Na3=) 13.Bd4 Nbd7 14.cd5 Nd5 (14...Bd5 15.Qc2=) 15.Bg7+= Kg7 16.Qd4 Kg8 (16...N5f6 17.Rc1+=) 17.Nc3 (17.Bc4 N5f6+=) 17...Nc3 18.Qc3 Qb8 (18...Qc8 19.Qd4+=) 19.Rd1 (19.Qb4 Nc5+=) 19...Rc8 20.Qd4 Nf6 21.Qb6 (21.Ne5!? Rc5 22.Nd7 Nd7 23.Qd7+=) 21...Nd5= 22.Qa5 Nc3 23.Rd2 Ne2 24.Re2 Bf3 25.gf3 Rc1 ½–½. Kern – Prange, Hessen clubgame, 1997.

6.b5 Be6 7.cd5 Bd5 8.Nc3=.

6.b5 Bg4 7.d4 (7.cd5 0-0+=) 7...dc4 (7...0-0!? 8.dc5 Nbd7 9.cd5 Nc5-/+) 8.Bc4= 0-0 (8...cd4 9.Bd4 Nbd7 10.Nbd2=) 9.h3 Bf5 10.0-0 Nbd7 (10...a6 11.Nc3=) 11.Nbd2 Ne4 (11...Qa5!?=) 12.Ne4+/- Be4 13.Ng5 Nf6 (13...Nb6!? 14.Bf7 Rf7 15.Ne4 c4+/-) 14.dc5+– Bd5 15.Bd5 Qd5 (15...Nd5 16.Bg7 Kg7 17.Rc1+–) 16.Bf6 Qd1 17.Rad1 (worse is 17.Rfd1 Bf6 18.Nh7 Kh7-/+) 17...Bf6 18.Ne4 Rfd8 19.c6 (19.g4 Bh4+–) 19...bc6+/- 20.bc6 Rac8 (20...Rd1 21.Rd1 Rc8 22.Rc1+/-) 21.Rd8 Rd8 22.f4 (22.g4 Bg7+–) 22...Rc8+/- 23.Rc1 Kf8 24.Kf2 (24.Nc5 Ke8 25.Na6 Bb2+–) 24...Ke8+/- 25.Rc4 (25.Rc5 Kd8+/-) 25...Kd8 26.Nf6 ef6 27.Ra4 Rc7 28.g4 (28.e4 Rc6 29.Ra7 Rc2 30.Kf3 Ke8+=) 28...Ke7 29.Ke2 Kd6 30.Ra6 Kc5 31.a4 Kc4 (31...f5 32.gf5 gf5 33.Kd3+/-) 32.e4 (32.g5 f5+/-) 32...Kd4 33.Kf3 Re7 (33...h6!?+/-) 34.Ra5+– Rc7 35.Rd5 Kc4 (35...Kc3 36.Rd7 Rc6 37.Rf7+–) 36.Rd7 Rc6 37.Ra7 Kd4? (better is 37...Kb4+–) 38.Rd7 Kc3 (38...Kc4 39.Rf7 Ra6 40.Rh7 Ra4 41.e5 fe5 42.fe5+–) 39.Rf7 h5 (39...Kb4 40.Rh7 Rc3 41.Kf2+–) 40.Rg7 Kd4 (40...hg4 41.hg4 f5 42.ef5 gf5 43.g5+–) 41.Rd7 (worse is 41.Rg6 Rc3 42.Kg2 h4 43.Rf6 Rc2 44.Kf3 Rc3 45.Kf2 Ke4+–) 41...Kc3 (41...Kc4 42.e5 Kb4 43.gh5 gh5 44.Rd4 Kb3 45.Rd6+–) 42.gh5 gh5 43.Rd5 Kb4 (43...h4 44.Kg4+–) 44.Rh5 Ka4 45.e5 fe5 (45...Kb4 46.Ke4+–) 46.fe5 Kb4 47.Rh7 Kc4 (47...Kc5 48.Ke4+–) 48.Ke4 Ra6 (48...Rg6 49.h4 Rg1 50.h5 Re1 51.Kf5 Rf1 52.Ke6+–) 49.h4 Kc5 (49...Ra2 50.h5 Re2 51.Kf5 Rf2 52.Ke6+–) 50.h5 Ra1 51.Rc7 Kb6 52.Re7 Rh1 (52...Re1 53.Kf5 Rf1 54.Kg6 Rg1 55.Kf7+–) 53.Re6 Kc7 (53...Kc5 54.h6+–) 54.h6 Kd7 55.Ra6 Ke7 56.Kf4 (56.Kf5 Rf1 57.Kg5 Rg1 58.Kf4 Rf1 59.Kg3 Rg1 60.Kf2 Rg8+–) 56...Kf7 57.h7! Kg7 (57...Rh7 58.Ra7 Skewer) 58.Ra7 (58.Ra3 Rf1 59.Ke4 Kh7+–) 58...Kh8 59.Ra3 Kh7 (59...Rh6 60.Re3 Rh7 61.e6+–) 60.Rg3 Rf1 (60...Re1 61.Kf5 Rf1 62.Ke6+–) 61.Ke4 Kh6 62.e6 Kh7 (62...Re1 63.Kf5 Rf1 64.Ke5 Re1 65.Kd6 Rd1 66.Kc6 Rd2+–) 63.e7 Re1 (63...Rf2 64.e8Q Re2 65.Re3 Rh2 66.Qd7 Kh8 67.Qd8 Kg7 68.Rg3 Kf7 69.Qg8 Ke7 70.Rg7 Kf6 71.Qf7) 64.Re3 Ra1 (64...Rh1 65.e8Q Rh2 66.Qd7 Kh8 67.Qd8 Kh7 68.Rg3 Re2 69.Kd3 Rh2 70.Qg8 Kh6 71.Qg6) 65.e8Q (65.e8Q Ra4 66.Qa4 Kg6 67.Qe8 Kg5 68.Rg3 Kh4 69.Rg1 Kh3 70.Qh5) 1–0. Janek – Guest648, internet, 2018.

6.bc5!? Qa5 7.cd5 Qc5 8.Qa4 Bd7 9.Qb3+/-.

5.c4 c6

6.Na3 0-0 7.Be2 Bg4 8.h3 Bf3 9.Bf3 a5 10.b5 dc4 11.bc6 Nc6 12.Nc4 Rc8 13.0-0 Nb4 14.Ne5 Nd7 15.Nd7 Qd7 16.Bg7 Kg7 17.d4 Rc3 18.a3 Nc2 19.Qd2 Rfc8 20.Rfc1 (better 20.Rac1 f5 21.d5=) 20...R3c7 (better 20...R3c4 21.Bg4 e6=+) 21.Bb7!+/- Na1 (21...Rb7 22.Rc2 Deflection (22.Rc2 Overloading)) 22.Bc8 Qc8 23.Ra1 a4 24.Qb4 Qa6 25.Rb1 Qd3 26.Rf1 Qc4 27.Qb8 Qc2 28.Rb1 Rd7 29.Qe5 f6 30.Qb5 Rd5 (30...Rc7 31.Rb2 Qc3 32.Qb4+/-) 31.Qb7+- (31.Qd5?! Qb1 32.Kh2 Qb8 33.Kh1 Qb1 34.Kh2 Qb8 35.Kh1 Qb1 36.Kh2=) 31...Kf8 (31...Kh6 32.Ra1 Qe4 33.Qb1+-) 32.Rb2 (32.Qa8!? Kg7 33.Rb7 Kf7+-) 32...Qc1 33.Kh2 Rd6 (better 33...Rd8!?+/-) 34.Qa8 Kf7 35.Rb4 Qa3 36.Ra4 Qb3 37.Ra7 Qb6 38.Rb7 Qc6 39.Qa7 Re6 (39...Qe4 40.Qb8 Ra6 41.Qc8+-) 40.Rd7 Ke8 41.Rc7 Qd6 42.g3 Qd5?? (42...Qd8+-) 43.Qb8 Kf7 (43...Qd8 44.Rc8 Rd6+-) 44.Qh8 Qh5 45.h4 (45.h4 Re4 46.f3 Rh4 47.gh4 Qh4 48.Kg2 Qg5 49.Kf1+-; 45.Rc8 Qh3 46.Kh3 Re3 47.Qg8) 1-0. Kryakvin,D (2610) - Duzhakov,I (2400), St Petersburg RUS, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4)

6.Na3 0-0 7.Be2 Bg4 8.h3 Bf3 9.Bf3 Nbd7 10.d4 Re8 11.0-0 a6 12.cd5 cd5 13.b5 Nb6 14.ba6 ba6 15.Qd3 e6 16.Rac1 Qd7 17.Nb1 Nc4 18.Ba1 a5 19.Nc3 Nd6 20.a4 Reb8 21.Bd1 Nfe4 22.Ne4 Ne4 23.Re1 Bf8 24.Re2 h5 25.Ra2 Ra7 26.Be2 Bd6 27.Bf3 Ng5 28.e4 Nf3 29.Qf3 Rc7 30.Rd1 Rc4 31.ed5 ed5 32.Re1 Bf8 33.Rae2 Ra4 34.Bc3 Ra3 35.Qf4 Rc8 36.Bd2 Ra2 37.Qf6 a4 38.Bf4 Re2 39.Re2 Bg7 40.Qa6 Bd4 41.Ra2 Rc4 42.Rd2 Qe6 43.Qa8 Kh7 44.Qb8 Bg7 (44...Bg7 45.Rd1 Qe2 46.Rd5 a3–+) 0–1. Gelashvili,T (2600) – Sevillano,E (2515), Las Vegas USA, National Open, 2012.

6.a4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.a4 d5).

6.a4 a5 7.b5= 0-0 8.Be2 Bf5 (8...Nbd7 9.Nc3=) 9.0-0 dc4 (9...Qd6 10.Nd4=) 10.Na3 Nd5 (10...cb5!? 11.ab5 Nbd7=) 11.Bg7+= Kg7 12.Nc4 Nb4 (12...cb5 13.ab5 Nd7 14.Nd4+/-) 13.d4 (13.Qb3 Nd7+=) 13...Nd7+= 14.bc6 (14.Qb3 Nf6+=) 14...bc6= 15.Qd2 (15.Nh4 Be6=) 15...c5 (15...Nf6 16.Qc1=) 16.Rfd1+= Kg8 (16...Qc7 17.Rac1+=) 17.Rac1 (17.Qc3 Rc8+=) 17...Qb8 (17...Rb8!?+=) 18.Ng5+/- cd4 (18...h6 19.e4 hg5 20.ef5+/-) 19.e4 d3 20.ef5 (20.Bd3?! Nc5 21.Bc2 Be6 22.Ne6 Ne6=) 20...de2 21.Qe2 (21.Qd7? ed1R 22.Qd1 Qf4–+) 21...Qf4 (21...Nf6 22.fg6 hg6 23.Ne5+/-) 22.Nh3 Qh6 (22...Qf5? 23.g4 Qc5 24.Rd7+–) 23.f4 (23.Qe7 Nd3 24.Rc3+/- (worse is 24.Qd7 Nc1 25.fg6 hg6+=)) 23...Nf6+/- 24.fg6 (24.Ng5 Qh5 25.Qe7 Nbd5+=) 24...hg6 25.Qe7 (25.Ng5 Qh5 26.Qh5 gh5=) 25...Nfd5 26.Qe4 (26.Qc5 Rfc8 27.Qd4 Qg7+=) 26...Rad8+= 27.Rd2 (27.Qf3 Qh4+=) 27...Qh5 (27...Rfe8!? 28.Qf3 Qh4+=) 28.Ng5+/- Rfe8? (better is 28...Nf6!? 29.Qe3 Ng4+/-) 29.Ne5+– Re7? (29...Rf8 30.Nef7 Rde8 31.Qc4 Rf7 32.Rd5 Nd5 33.Qd5+–) 30.Rcd1 (30.Rc5 f6 31.Rdd5 Nd5 32.Rd5 Rc8+–) 30...Kg7? (30...f6 31.Rd5 Nd5 32.Rd5 Rc8+–) 31.g4 (31.Rd5 Rd5 32.Rd5 Nd5 33.Qd5 Qe2+/-) 31...Qh4 (31...Qh6 32.Rd5 Nd5 33.Rd5 Rd5 34.Qd5 Qh4 35.Qa5 Rb7+–) 32.Ngf7 (32.Rd5 Rd5 33.Rd5 Nd5 34.Qd5 Qe1 35.Kg2 Qe2 36.Kg3 f6=) 32...Nf4 (32...Re5 33.Ne5 Qf6+–) 33.Qf4 Rd2 (33...Rf8 34.Rd7 Nd3 A) 35.Nd3?! Rd7 36.Qg5 Rd3 37.Qh4 Rd1 38.Kg2 Rd2 (worse is 38...Rf7 39.Qg5+/-) 39.Kg3 Rd3 (worse is 39...Rf7 40.Qg5 Rd3 41.Kh4+/-; worse is 39...Kf7 40.Qg5 Rd3 41.Kf2+/-) 40.Kf4 Rf7 41.Ke5 Re3 42.Kd5 Rd3 43.Kc4 Ra3=; B) 35.R7d3 Rff7 36.Nf7 Re1 37.Kg2 Rd1 38.Rd1+–) 34.Rd2 g5 35.Qe4 (better is 35.Qf1 Nc6 36.Rd6 (36.Nc6?! Re1 37.Nce5 Rf1 38.Kf1 Qh3 39.Kg1 Qe3 40.Rf2 Qe4+–) 36...Qe1 37.Qe1 Rf7 38.Nf7 Nd4 39.Qe5 Kf8 40.Rd8 Kf7 41.Rd7 Kg6 42.Qg7) 35...Nc6 36.Qg6 Kf8 37.Rf2 (37.Rf2 Qf2 38.Kf2 Ne5 39.Ne5+–; 37.Qc6?! Qe1 38.Kg2 Qd2 39.Kg3 Qe1 40.Kh3 Qe3 41.Kg2 Qd2 42.Kg1 Qe1 43.Kg2 Qd2=) 1–0. Gelashvili,Tamaz (2560) – Abdumalik,Zhansaya (2420), St Louis Spring Classic B, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 d5 4.Bb2 Bg7 5.c4 c6)

6.b5 0-0 7.a4 Qc7 8.cd5 cd5 9.Be2 Nbd7 10.0-0 e5 11.h3 Ne4 12.d4 Re8 13.de5 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Nd2 Qg5 17.Nf3 Qf6 18.Qd5 Nc3 19.Qd2 Bf5 20.Nd4 Ne2 21.Ne2 Qg5 22.Ng3 Be6 23.Rfc1 Red8 24.Qb4 Rd2 25.Qd2 1–0. Abdullaevich (1750) – SpinozaReloaded (1820), lichess.org, 2019.

6.b5 dc4 7.a4 0-0 8.Bc4 cb5 9.ab5 Nbd7 10.–0 Nb6 11.Be2 Qc7 (11...Bf5 12.d4=) 12.Be5+= Qc5 13.d4 Qb4 14.Na3 Ne4 15.Nc2 Qb3 16.Ra3 Qe6 17.Qd3 Nd6 18.Bg7 Kg7 19.Rd1 Bd7 20.Ra5 (20.Rb3 Qd5 21.Rb2 Bf5+=) 20...f6 (better is 20...Nbc4!? 21.Ra2 Bb5+=) 21.Nd2 Rfc8 22.Nb4 1–0. Sieber,Martin (2025) – Knajbl,Michael (1785), CZE, Liga, 2013.

6.Nc3 a5 7.b5 0-0 8.Rc1 Nbd7 9.bc6 bc6 10.cd5 cd5 11.Nb5 Nb6 12.Be2 Bd7 13.0-0 Ne4 14.Bg7 Kg7 15.Qb3 Rb8 16.a4 Nc4?? (better is 16...h6+=) 17.d3+– (17.Bc4?! dc4 18.Rc4 Nf6+/-) 17...Bb5 18.ab5 (18.de4?! Ba6 19.Qc3 Kg8 20.ed5 Rb4+/-) 18...a4 19.Qa2 (19.Qa2 Ncd2 20.Nd2 Nd2 21.Qb2 Kg8 22.Qd2 Rb5 23.d4+–) 1–0. Majzik,Levente (2275) – Csoli,Odon, HUN–chT3, 1999. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4 c6)

6.Nc3 Bf5 7.cd5 Nd5 8.Qb3 Nc3 9.Bc3 0-0 10.Bg7 Kg7 11.h4 Qd5 (11...Bg4!?=) 12.Qc3+/- f6 13.Bc4 Qd6 14.h5 h6? (better is 14...b5!? 15.Bb3 a5 16.ba5 b4+/-) 15.hg6+– Bg6 16.Nd4 Nd7 (better is 16...Kh7+–) 17.Ne6 Kh7 18.Nf8 Rf8 19.Rh4 e5 20.Ke2 b5 21.Bb3 Nb6 22.Rah1 h5 23.e4 Qd7 (23...Kg7+–) 24.Rh5 Bh5 25.Rh5 Kg6 26.Rh4 Rh8 (26...f5 27.Qg3 Kf6 28.Rh6 Ke7 29.Qg7 Ke8 30.Re6 Qe6 31.Be6 f4+–) 27.Qg3 (27.Qg3 Qg4 28.Qg4) 1–0. Fournier,Frederic (2210) – TIDUJ(C) (1695), Active, 2006.

6.Nc3 Bg4 7.Be2 0-0 8.cd5 cd5 9.0-0 Nc6 10.a3 Rc8 11.d4 Ne4 (11...Qd6 12.h3 Bf5 13.b5=) 12.Ne4 de4 13.Nd2 Bf5 (13...Be2 14.Qe2 Qd5 15.f3 ef3 16.Nf3+= (worse is 16.Rf3 Nd4 17.Bd4 Bd4+=)) 14.Qb1 (14.Rc1 Qd5+/-) 14...a5 (14...e5 15.b5 Na5 16.g4=) 15.b5 Na7 16.a4 Qd6 (16...e5!? 17.g4 Be6 18.Qe4 ed4 19.Bd4 Bd4 20.ed4 Re8+=) 17.Ne4+/- Qd5 18.Bd3 Rc7?? (better is 18...Rfe8+/-) 19.b6+– Rc6 20.ba7 Ra8 21.Nc5 (better is 21.Nc3!? Qd7 22.e4 Bd4+–) 21...Bd3 22.Nd3 (22.Qd3?! Rc5 23.Ba3 Rc7+/-) 22...Ra7 23.Ne5 Rb6 24.Qa2 e6 (24...Qa2 25.Ra2 Rb3 26.Rd1+–) 25.Qd5 ed5 26.Ba3 Re6 (26...Be5 27.de5 Re6 28.Rab1+–) 27.Nf3 (27.Nd3 g5+–) 27...f5 (27...Rc6 28.Rfc1+–) 28.Rfc1 b6 (28...h6 29.Rc8 Kh7 30.Rd8+–) 29.h3 (better is 29.Rc8 Kf7 30.Ng5 Kf6 31.Nh7 Kf7 32.Ng5 Kf6 33.Ne6 Ke6+–) 29...Bh6 (29...Bf6 30.Rc8 Kf7 31.Rb1+–) 30.Ne5 (30.Rc8 Kf7 31.Bf8 Bf8 32.Ng5 Kf6 33.Ne6+– (33.Rf8?! Kg5 34.Rd8 Rc7+/-)) 30...f4 (30...Kg7 31.Rc8 Bg5 32.Bf8 Kf6 33.g3+–) 31.ef4 (better is 31.Rc8 Bf8 32.Bf8+–) 31...Bf4 32.Rc6 (32.Rc8 Kg7 33.Rd8 Rc7+–) 32...Rc6 33.Nc6 Rc7 (33...Rd7 34.g3 Bd6 35.Bd6 Rd6 36.Ne5+–) 34.Ne7 Kg7 35.Nd5 Rf7 36.Nf4 Rf4 37.Rd1 (37.Bd6 Re4 38.Bc7 Re6+–) 37...Kf7 38.Bd6 Rf5 (38...Rf6 39.Be5 Re6 40.f4+–) 39.Bc7 (39.Be5 Ke8 40.Rb1 Rf7 41.Rb6 Ra7+–) 39...b5 (39...Rd5 40.Bb6 Kf6 41.Rc1+–) 40.ab5 (better is 40.d5 Ke7 41.ab5 a4 42.d6 Kd7+–) 40...Rb5 41.d5 Ke8 42.d6 Kd7 43.Ra1 1–0. Lee Lok Yi – Ng,Sau Wai, Baku Olympiad Women Selections, 2016.

6.Nc3 Bg4 7.h3 Bf3 8.Qf3 Nbd7 9.d4 0-0 (better is 9...e5!? 10.cd5 ed4 11.ed4 Qe7 12.Qe3 cd5 13.Qe7 Ke7=) 10.cd5+/- Nd5 11.Nd5 cd5 12.Qd5 Nf6 (12...e5!?+/-) 13.Qb7+– Rb8 (13...Nd5 14.Bc4 e6 15.0-0+–) 14.Qa7 Rb4 (14...Nd5 15.a3+–) 15.Ba3 Rb8 16.Be7 (16.Qe7?! Qa5 17.Ke2 Qa6 18.Ke1 Qa5 19.Ke2 Qa6 20.Kd2 Qa5 21.Ke2=) 16...Qc8 17.Qc5 Re8 18.Qc8 Rbc8 19.Bf6 Bf6 20.Kd2 Rcd8 (20...Rb8 21.Kc3+–) 21.a4 Re7 22.a5 Ra7 23.a6 Rd6 24.Bc4 Kf8 25.Rhb1 Rc6 (25...Rdd7 26.Kc3+–) 26.Rb7 Rc4 (26...Ra8 27.Kd3 Be7 28.a7+–) 27.Ra7 (27.Ra7 Kg7 28.Ra8 Bd4 29.ed4 Rd4 30.Ke3+–) 1–0. pierre – tudun, internet, 2010.

6.c5 0-0 7.Be2 (7.Bf6 Bf6 8.d4 Bf5=) 7...Nbd7 (7...a5 8.Qa4=) 8.a4 (8.0-0 a5 9.a3 b5=) 8...Qc7 (8...a5 9.Qb3=+) 9.0-0 e5 10.h3 (10.d4 e4 11.Ne5 Rd8 12.Nd7 Bd7=) 10...e4=+ 11.Nh2 (11.Nd4 a5 12.Qb3 b6 13.cb6 Qb6=) 11...Ne5 (11...Ng4 12.Ng4 Bb2 13.Ra2=+) 12.Nc3 (12.d4 ed3 13.Bd3 Nd3 14.Qd3 Bf5=+) 12...Nd3 (12...Nc4 13.Bc4 dc4 14.f3 ef3 15.Qf3=) 13.Bd3= ed3 14.b5 (14.Nf3 Re8=) 14...Ne4 (better is 14...cb5 15.Qf3 Qc5 16.ab5 Ne4-/+) 15.Nd5? (better is 15.Ne4 Bb2 16.Rb1=+) 15...cd5–+ 16.Bg7 Kg7 17.Rc1 Nc5 18.Rc3 Bf5 19.Nf3 Rac8 20.Qa1 Kg8 21.Rfc1 b6 22.Nd4 Qd7 23.Kh2 Ne4 24.Rc6 Nd2 25.g4 Be4 26.Kg3 f5 27.f3 fg4 28.fe4 Ne4 29.Kg2 gh3 30.Kh1 Qg4 31.Rg1 Ng3 32.Rg3 Qg3 33.Qg1 Qg1 34.Kg1 d2 (35.Rc8 d1Q 36.Kh2 Qd2 37.Kh3 Qe3 38.Kg2 Rc8–+) 0–1. Riveline,Maurice – Amable,Roland, FRA–ch op–B Paris, 1994.

6.c5 Bg4 7.Be2 (7.h3 Bd7=) 7...Nbd7 (7...0-0 8.0-0=) 8.0-0 (8.d4 a5 9.b5 Ne4=) 8...a5 (8...0-0 9.d4=) 9.a3 ab4 10.ab4 Ra1 11.Ba1 Qa8 (11...0-0 12.Bf6 Bf6 13.d4=) 12.Nc3 (12.Bf6 Bf6 13.d4 0-0=) 12...0-0 (12...Qa3 13.Qb1=) 13.Qc2 (13.d4 b6=) 13...Bf3 (13...Qa3 14.Rb1=) 14.Bf3 Ne5 (14...Rb8=) 15.Bb2 (better is 15.Be2!?+=) 15...Nf3=+ 16.gf3 e5 (16...Qc8 17.Kg2=+) 17.Ra1 (17.Ne2 Re8=) 17...Qc8 18.Na4 (18.Ne2 Qh3 19.Ng3 Nd7=+) 18...Qh3 19.Be5? (better is 19.d3-/+) 19...Qf3?? (better is 19...Ne4! 20.Bf4 g5–+) 20.Qd1= Qh3 21.Qf1 Qg4=+ 22.Bg3 Qb4 23.Qd1 Ra8-/+ 24.Be5 Nd7 25.Bg7 Kg7 26.d4 Nf6 27.f3 Re8 28.Kf2 Nh5 29.Rb1=+ Qa3 30.Rb7? Qe3–+ 31.Kf1 Nf4 32.Rb3? Qe6 33.Rb6 Qh3 34.Kf2 Qg2 0–1. tightfist – gbsrao (1900), net–chess.com, 2006.

6.d4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5).

6.d4 a5 7.b5 cb5 8.cb5 Nbd7 9.Nc3 0-0 10.Bd3 Re8 11.0-0 b6 12.Rc1 Bb7 13.Ne5 Rc8 14.Qa4 Ne5 15.de5 Nd7 16.f4 Nc5 17.Qd1 d4 18.Na4 Qd5 19.e4 Qa2 20.Nc5 bc5 21.Rf2 Qe6 22.Bc4 Qb6 23.Qd3 e6 24.Rcf1 Re7 25.f5 ef5 26.ef5 gf5 27.Qf5 Rcc7 28.Bc1 Bc8 29.Qh5 Qg6 30.Qg6 hg6 31.Bg5 Be6 32.Be7 Bc4 33.Bd6 Bf1 34.Bc7 Bb5 35.Rb2 Bd3 36.Rb8 Kh7 37.Rd8 Bh6 38.Bb6 Be3 39.Kh1 c4 40.Bd4 Bd4 41.Rd4 a4 42.Rd7 Kg8 43.Rc7 a3 44.Ra7 c3 45.Ra3 c2 46.Rc3 Kf8 47.Kg1 Ke7 48.Kf2 g5 49.Ke3 Bg6 50.Rc6 Kd7 51.Rd6 Ke7 52.Kd2 Be4 53.Rf6 Bg6 54.h3 Be4 55.g3 Bg6 56.h4 gh4 57.gh4 Bh7 58.h5 Be4 59.h6 Bh7 60.Rc6 Kf8 61.Rc8 1–0. Coccomo – Bouma, email 4AMM–07 1997.

6.d4 Qb6 7.c5+= Qb4?? (better is 7...Qc7+=) 8.Bc3+– Qc3 9.Nc3 0-0 10.Be2 a6 (10...Nbd7 11.0-0+–) 11.0-0 b5 (11...Nbd7 12.Qb3+–) 12.cb6 Nbd7 13.Na4 Bb7 14.Qb3 Ne8 (14...Rfe8 15.Rfc1+–) 15.Rac1 Nd6 (15...Nef6 16.Bd3+–) 16.Bd3 Rfc8 (16...Rfe8 17.Nc5 Nc5 18.Rc5+–) 17.Nc5 Nc5 18.Rc5 Nb5 (18...e6 19.Rfc1 f6 20.h4+–) 19.Rfc1 Nd6 (19...e6 20.a4 Nd6 21.Ne5 Be5 22.de5+–) 20.Ne5 Ne4 (20...Be5 21.de5 Nf5 22.Qa4+–) 21.Be4 de4 22.Nf7 Kf8 23.Ng5 e5 (23...Ke8 24.Qf7 Kd7 25.d5 Be5 26.dc6 Bc6 27.Re5 Rg8 28.Qe7 Kc8 29.Qc7) 24.Qf7 1–0. pierred – anony, internet, 2014.

6.d4 e6 7.Nbd2 a5 8.b5 cb5 (8...0-0 9.Rc1+=) 9.cb5 Bd7 (9...0-0!?+=) 10.Bd3 a4 (10...0-0 11.Ba3+/-) 11.Ba3+- Qb6 (11...Qa5 12.Rc1+-) 12.0-0 Bf8 13.Qc1 Ba3 (13...Bd6 14.Bc5 Qc7 15.b6+-) 14.Qa3 Ra5 (14...Qd8 15.Rac1+-) 15.Rfc1 Bb5 (15...Ng8+-) 16.Rc8 Kd7 17.Rh8 Bd3 18.Ne5 (18.Ne5 Kc7 19.Qe7 Nfd7 20.Rc1 Bc2 21.Rc2 Rc5 22.dc5 Qc5 23.Rc5 Kb6 24.Nd7 Ka7 25.Qd8 e5 26.Qb8 Ka6 27.Qa8) 1-0. Vendelo – Tucuman, internet, 2021.

6.cd5 Qd5 7.Nc3 Qd6 8.Be2 Qb4 9.Rb1 (9.a3 Qb6=+ (< 9...Qb2 10.Na4 Qa1 11.Qa1+=)) 9...0-0 (9...Bf5 10.a3 Qa5 11.e4 Ne4 12.Ne4 Bb2 13.Rb2 Be4 14.Qa1=+) 10.0-0 (10.Nd5 cd5 (< 10...Nd5 11.Bg7 Qb1 12.Qb1 Kg7 13.Qb2 Kg8 14.d4+/-) 11.Bf6 Qd6 12.Bg7 Kg7=+) 10...Qd6 11.Bc4 (11.Qc2 Rd8=+) 11...Bf5 (11...b5 12.Be2 Rd8-/+) 12.d3 (better is 12.e4!? Ne4 13.Ne4 Be4 14.Bg7 Kg7 15.Rb7-/+) 12...b5–+ 13.Bb3 (13.Bb5 cb5 14.e4 b4–+) 13...Bd3 14.Bc2? (better is 14.Ba3 Qa3 15.Qd3–+) 14...Bf1 15.Kf1 (15.Qf1 Nbd7–+) 15...Nbd7 16.Nd4 (16.Qe2 Rfd8–+) 16...Qh2 (better is 16...Rac8 17.Nf3 Qd1 18.Rd1 Rfd8–+) 17.Nf3 (17.Nc6 Qh1 18.Ke2 Qh5 19.Ke1–+) 17...Qh1 18.Ng1 Ne5 (18...Rfd8 19.Qe1–+) 19.Nce2 (19.Nb5 Rfd8 20.Qe1 Nfg4 21.Be5 Be5–+ (< 21...cb5 22.Bg7 Kg7 23.Rb5–+)) 19...Rad8 (19...Rfd8 20.Qe1 Nfg4 21.Ng3–+) 20.Qc1 Neg4 21.f3 Bh6 22.f4 (22.Nf4 e5 23.fg4 Ng4–+) 22...Nd5 (22...Qh4 23.Nh3 Rd1 24.Qd1 Ne3 25.Kg1 Nd1 26.Rd1–+) 23.Bd4 e5 24.Ba7 (24.Bc5 ef4 25.Nf4 Rfe8–+) 24...ef4 (better is 24...Qh4 25.Nh3 Qe7 26.Nf2 Nf2 27.Bb6–+) 25.ef4 (25.Nf4 Rfe8 26.Rb3 Qh4–+) 25...Rfe8 26.Bd3 Nde3 27.Be3 Ne3 28.Ke1 Ng2 29.Kf2 Nh4 30.Qf1 Rd3 31.Rb3 Qh2 32.Ke1 Qg3 (33.Qf2 Ng2 34.Kf1 Rd1 35.Qe1 Re1) 0–1. yulio – oldsage, ChessWorld.net, 2006.

6.Be2 0-0 7.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d5 7.0-0).

6.Be2 dc4 7.Bc4 0-0 8.0-0=.

6.Be2 Bd7 7.0-0 Qc8 (7...0-0 8.cd5 cd5 9.Bf6 Bf6 10.d4+=) 8.cd5+= Bh3?? (better is 8...cd5 9.Bf6 Bf6+=) 9.gh3+– Qh3 (9...cd5 10.Qa4 Nc6 11.b5+–) 10.dc6 bc6 (10...Nc6 11.b5 Nd8 12.d4+–) 11.Ne5 a6 (11...Nd5+–) 12.Nc6! Nc6 13.Bf3 0-0 14.Bf6 (14.Bc6?? Ng4 15.Qg4 Qg4 16.Kh1 Bb2 17.Ba8 Ba1–+) 14...Bf6 15.Bc6 (15.d4 Rad8 16.Bg2+/- (16.Bc6? Be5 17.f4 Qe3 18.Kg2 Bd4–+)) 15...Rac8?? (better is 15...Be5 16.f4 Ba1 17.Ba8 Ra8+=) 16.Bg2+– Qh4 (16...Qd7 17.d4 e5 18.Qf3+–) 17.d4 Rc4 (17...e5 18.Nd2 ed4 19.Nf3+–) 18.a3 (18.Qa4 Rb8 19.a3 Rb6+–) 18...Rfc8 19.Nd2 Rc3 (19...Rc2 20.Ne4 R8c4 21.Qf3+–) 20.Qa4 Rf8 (20...Qg4 21.Ne4 R3c6 22.h3+–) 21.Qa6 Rc2 22.Ne4 Re2 (22...Bg7+–) 23.Qe2 e5 24.d5 (24.Qg4 ed4 (24...Qg4?? 25.Nf6 Kg7 26.Ng4+–) 25.ed4 Rb8+– (25...Qg4 26.Nf6 Kg7 27.Ng4+–)) 24...Rd8 25.d6 (25.Qg4 Kf8 (25...Qg4?? 26.Nf6 Kg7 27.Ng4+–) 26.Qh4 Bh4+–) 25...Bg5 26.Qb5 f5 27.Ng5 Qg5 28.Qe5 Kf7 29.Qd5 (29.Rfc1 Rd7 30.Rc8 Rb7 31.Rac1 Qg2 32.Kg2 g5 33.Qf5 Kg7 34.R1c7 Rc7 35.Rc7 Kh6 36.Qh7) 29...Kf6 30.f4 Qg4 31.Qe5 Kf7 32.Qe7 Kg8 33.Qd8 Kg7 34.Qe7 Kh6 35.Qf8 (35.d7 g5 36.d8Q Qg2 37.Kg2 Kg6 38.Qg5 Kf7 39.Qdg8) 35...Kh5+– 36.Rf3 h6 (36...Qg3 37.Rg3 g5 38.Rg5 Kh4 39.Qh6) 37.Rh3 Qh3 38.Bh3 g5 39.Qf5 Kh4 40.Qg4 1–0. DEFFM – GuestHBPM, freechess.org, 2018.

6.Ne5 0-0 7.f4 (7.d4 a5=) 7...Nbd7 8.Be2 Ne5 9.fe5 Nd7 10.d4 e6 (10...dc4 11.Bc4 Nb6 12.Bb3=) 11.0-0 f5 (11...Qg5!? 12.Qb3 f6 13.ef6 Nf6=) 12.Nd2 a6 13.c5 Bh6 14.Qb3 g5 15.h3 Rf7 16.Bc1 Nf8 (16...g4 17.hg4 Qg5 18.Rf4+/-) 17.Nf3 (17.Qd3 b6+/-) 17...Bg7 (17...Ng6 18.Ne1+/-) 18.Bd2 h5 Black intends g4 (18...Ng6 19.a4+=) 19.Nh2 (19.e4 f4 20.Qd3 Rd7+/-) 19...g4+= 20.Kh1 Ng6 21.hg4 (21.Qd3 Qh4+=) 21...hg4 22.g3 Bh6 1-0. AlbertOOO44444 (1925) - vandameperu2, Casual Rapid game, lichess.org, 2020.

6.Bf6 Bf6 7.d4 0-0=.

6.h3 Qb6 7.cd5 cd5 8.Bf6 Qf6 9.Bb5 Bd7 10.Bd7 Nd7 11.d4=.

6.Qb3 0-0

7.Nc3 a5 8.b5 dc4 9.Bc4 Nbd7 10.Na4 Ne4 (10...cb5 11.Bb5 b6 12.Bc6=) 11.Bg7+= Kg7 12.bc6 bc6 13.0-0 e5 14.Qc2 Nef6 15.Be2 Bb7 (15...Ba6 16.Ba6 Ra6 17.Rab1+=) 16.Rab1 Qc7 17.Nc5 Nc5 18.Qc5 Nd7 19.Qc3 Ba6 (19...c5 20.d4 f6 21.Rfd1+=) 20.Ba6+/- Ra6 21.Rfc1 Rc8 22.d4 ed4 23.Nd4 Kg8 24.Qc4 Rb6 25.Rb6 Nb6 26.Qc5 (26.Qc6? Qd7-+) 26...Nd7 27.Qc6 Qc6 28.Rc6 Rb8 29.Kf1 Rb1 30.Ke2 h5 31.Rc2 Nf6 32.Nb3 a4 33.Nc5 a3 34.Nd3 Nd5 35.e4 Nb4 36.Nb4 Rb4 37.Kd3 Kg7 38.h4 f6 39.f4 (39.Rc7 Kh6+/-) 39...f5 40.Rc7 Kh6 41.Re7 fe4 42.Re4 Rb2 43.Re2 Rb4 44.g3 Rb7? (better 44...Rb1!?+/-) 45.Rc2+- Kg7 46.Rc3 Ra7 47.Rc6 Ra4 48.Kc3 Kf7 49.Kb3 Ra8 50.Kb4 Re8 51.Rc3 Re2 52.Ka3 Kf6 53.Kb3 Kf5 54.Rc5 Kf6 55.a4 Re1 56.a5 Ra1 57.Kb4 Rb1 58.Ka4 Rb2 (58...Ra1 59.Kb5 Rb1 60.Kc6+-) 59.a6 1-0. Michna,Marta (2355) - Antova,Gabriela (2255), 47th TCh-GRE, 2019.

7.Nc3 e6 8.Be2 b6 (8...dc4 9.Qc4 b5 10.Qh4=) 9.0-0 Bb7 (9...dc4 10.Bc4 a5 11.a3+=) 10.a4 (10.d4 dc4 11.Bc4 Nbd7+=) 10...Nbd7 (10...dc4 11.Qc4 a5 12.b5+=) 11.d4 (11.cd5 cd5 12.d4 Ne4+=) 11...Qe7 (11...dc4 12.Qc4 a5 13.b5+=) 12.Rfd1 (12.cd5 Nd5 13.Nd5 ed5+=) 12...Rad8 (12...dc4 13.Qc4 a5 14.b5+=) 13.a5 (better is 13.cd5 ed5 14.a5+=) 13...e5? (better is 13...dc4!? 14.Qc4 c5+=) 14.de5+– Ne5 (14...Ng4 15.cd5 cd5 16.ab6 ab6 17.Ra7 (17.Nd5?! Bd5 18.Rd5 Nde5 19.Ne5 Ne5+–) 17...Nde5 18.Ne5 Ne5 19.Ba6+– (19.Nd5 Bd5 20.Re7 Bb3 21.Rd8 Rd8 22.Be5 Kf8+=)) 15.Ne5 Qe5 16.Nd5 (better is 16.ab6 dc4 17.Bc4+–) 16...Qg5?? (16...Qe6 17.Bf6 Bf6 18.Bg4+–) 17.Nf6 (better is 17.f4 Qh4 18.Nf6 Bf6 19.g3+–) 17...Bf6 18.Bf6 Qf6 19.Bf3 Ba8 (19...Rfe8 20.ab6 ab6 21.b5+–) 20.ab6 ab6 21.Ra7 (21.c5 bc5 22.bc5 Rb8+–) 21...Rd1 (better is 21...c5!? 22.Bd5 Bd5 23.cd5 Ra8 24.Ra8 Ra8 25.bc5 Ra1+–) 22.Qd1 Rd8 (22...Qc3 23.b5+–) 23.Qa1 (better is 23.Qa4 Qc3 24.h3 Qc4 25.Ra8 Ra8 26.Qa8 Kg7 27.Qa1 Kg8 28.Qd4+–) 23...Qa1 24.Ra1 f5 (24...Bb7 25.b5 Rd6 26.Kf1+–) 25.Kf1 (25.Ra6 g5 26.h3 f4+–) 25...Bb7 26.Ra7 (26.b5 Rc8+–) 26...Bc8 (better is 26...Rd7+–) 27.Bc6 Be6 28.Bb5 (28.c5 bc5 29.bc5 g5+–) 28...Rd1 29.Ke2 Rc1 (29...Rb1 30.Kd3 Rb4 31.Rb7+–) 30.Kd2 (30.Rb7 Rc2 31.Kd3 Rf2 32.Rb6 Kf7+–) 30...Rb1 (30...Rf1 31.Ra8 Kf7 32.Ke2+–) 31.Kc3 Rc1 (31...Rg1 32.g3+–) 32.Kd4 Rc2 33.Rb7 (33.Ke5 Bc4 34.Kf6 Bd5+–) 33...Rf2 (33...Kf8 34.Rb6 Bf7 35.c5 Rf2 36.Ke5+–) 34.Rb6 (34.Ke5!? f4 35.Rb6 Bg4 36.ef4 Rg2+–) 34...Bf7 35.Ke5 Kg7 36.Rb7 f4 (36...Rg2 37.c5 Rh2 38.Bc4+–) 37.ef4 (37.e4 Rc2+–) 37...Rg2 (37...Re2 38.Kd4 Kf6 39.Rb6 Ke7+–) 38.Be8 (better is 38.c5 Rc2 39.c6+–) 38...Re2= 39.Kd6 Re8 40.c5 Kf6 (better is 40...Re6 41.Kc7 Re2+=) 41.Rf7?? (better is 41.b5+=) 41...Kf7-/+ 42.b5 Re6 (better is 42...Rd8 43.Kc7 Rd5-/+) 43.Kd5? (better is 43.Kc7 Re7 44.Kc6-/+) 43...Ke7–+ 44.b6 Kd7 45.b7 Re8 46.c6 Kc7 47.Kc5 Re2 48.h4 Re4 49.f5 gf5 50.Kd5 0–1. Galindo,Gustavo – Arias,Robinson, Mayores Absoluto Valle, 2011.

7.Nc3 h6 8.d4 Be6 9.c5 Nbd7 10.Bd3 Qc7 11.h3 b6 12.0-0 bc5 13.bc5 Nc5 14.dc5 d4 15.Qc2 dc3 16.Bc3 Nd5 17.Bg7 Kg7 18.Qb2 Nf6 19.Rfb1 Rfd8 20.Nd4 Bd5 21.e4 e5 22.ed5 Rd5 23.Nc6 Qc6 24.Be2 Rc5 25.Qb7 Rc1 0–1. Abrahams – Golombek, Hastings 1947.

7.d3 a5 8.a3 Nbd7 9.Nbd2 ab4 10.ab4 Ra1 11.Ba1 Qc7 12.Be2 e5 13.0-0 Re8 14.Rc1 e4 15.Ne1 dc4 16.Nc4 Nb6 17.Nb6 Qb6 18.Bd4 Qc7 19.Qb2 Qd6 20.h3 Nh5 21.Bh5 Bd4 22.Qd4 Qd4 23.ed4 gh5 24.de4 Re4 25.Nf3 Be6 26.Re1 Rf4 27.Kh2 h4 28.Re5 Bd5-/+ 29.Rg5 Kf8 30.Rg4?? Rg4–+ 31.hg4 Bf3 32.gf3 Ke7 33.Kh3 Kd6 34.Kh4 Kd5 35.Kg5 Kd4 36.Kf6 c5 37.bc5 Kc5 38.f4 b5 39.Kf7 b4 40.f5 0–1. Sadiku,B (2285) – Atakisi,U (2395), 23rd ECC Men, 2007.

7.d4 Bg4 8.Ne5 Bc8 9.Nd2 e6 10.Bd3 Nbd7 11.f4 Ne8 12.0-0 Nb6 13.a4 a5 14.c5 Nd7 15.b5 f6 16.bc6 Ne5 17.cb7 Bb7 18.de5 Ba6 19.ef6 Nf6 20.Rac1 Rb8 21.Bb5 Ng4 22.Bg7 Kg7 23.h3 Nf6 24.Qc3 Bb5+/- 25.ab5 Rb5 26.c6 Qc7 27.Nf3 Rfb8? 28.Nd4+– Kf7 29.Nb5 Rb5 30.Qe5 Ne8 31.Qh8 h5? 32.e4! d4? 33.f5 ef5 34.Qd4 f4 35.Qd7 Kf8 36.Qc7 Nc7 37.Rf4 Ke7 38.Rf3 Ne6 39.c7 Nd4 40.c8Q Ne2 41.Kf2 Nc1 42.Qc1 Rb7 43.Qc5 Kd8 44.Rf8 Kd7 45.Rf7 Ke6 46.Rb7 Kf6 47.Rb6 Kg7 48.Qg5 Kf7 49.Rd6 Kg7 (49...Kg7 50.Rd7 Kf8 51.Qd8#; 49...Ke8 50.Qf6 a4 51.Rd8#). ferminkatcho (1685) – sovapavel (1740), kurnik, 2012.

7.cd5 cd5 8.Be2 Na6 9.0-0 b6 (9...Bg4 10.Ba6 Bf3 11.Bb7=) 10.Nc3 (10.Be5 Nb8+=) 10...Nc7 11.Rfc1 Bb7 (11...Bg4 12.Rc2+=) 12.a4 Nfe8 13.Nb5 Ne6 14.Bg7 N8g7 15.Ne5 (15.d4!?+/-) 15...a6+= 16.Nd4 (16.Na3 d4+=) 16...Nd4= 17.ed4 Qd6 18.a5 Ne6 19.Qb2 Rfb8 20.Nd3 Bc6 21.ab6 Bb5 22.Bf1 (22.b7 Ra7 23.Rc8 Kg7 24.Rb8 Qb8 25.Qc3 Rb7 26.Bg4 Bd3 27.Be6-/+) 22...Bd3 23.Bd3 Rb6 24.Ra4 Rab8 25.Qa1 (25.Rb1 Nf4 26.Bf1 Rc8+=) 25...Qf4 (25...Rb4 26.Ra6 Qf4 27.Ra8-/+) 26.Ba6 Rb4 27.Rc8 (27.Rb4 Rb4 28.Rc8 Kg7–+) 27...Kg7 (27...Rc8 28.Rb4 Rc2 29.Qe1 Nd4 30.Rb7–+) 28.Rb8 Rb8 29.Qc3 (29.d3 Qd2 30.Ra2 Qc3–+) 29...Rb1–+ 30.Bf1 Rd1 (30...Qe4!? 31.Ra1 Ra1 32.Qa1 Nd4 33.Qa3–+) 31.Qe3-/+ Rd2 32.g3 Qh6 (better is 32...Qe3 33.fe3 Ng5-/+) 33.Qe5= Kg8 34.Ra8 Nf8 35.Qd5 Qg7 36.Qe5 Qe5 (36...e6 37.Qc5+=) 37.de5+= Rd5 38.f4 Rd2 39.Re8 (39.Ra7 Rd7 40.Rd7 Nd7+=) 39...e6 40.Ra8 Kg7 41.Bb5 g5 42.Ra4 gf4 43.gf4 (worse is 43.Rf4 Ng6 44.Rg4 Kh6-/+) 43...Ng6 44.Bc6 h5 45.Bf3 Kh6 46.h3 Rd3 47.Bg2 Nh4 48.Bf1 (48.Ra2 Rd4 49.Rf2 Ng6-/+) 48...Rd2 (48...Rf3 49.Bg2 Rg3 50.Ra2 Ng2 51.Kh2-/+) 49.Ra3 (better is 49.Bb5!?=) 49...Rd4-/+ 50.Re3 (better is 50.Ra8!?-/+) 50...Rf4–+ 51.Bg2 Ng2 (51...Rf5 52.Bb7–+) 52.Kg2 Kg5 53.Rg3 Kf5 54.Re3 (54.Rb3 Ke5 55.Rb5 Kd4 56.Rh5 e5–+) 54...h4 55.Re2 Kg6 (55...Re4!? 56.Rf2 Kg6 57.Rf6 Kg7 58.Rf2–+) 56.Re3 Kg7 57.Re2 Kf8 (57...f6 58.Re3–+) 58.Re3-/+ Ke7 59.Re2 (59.Ra3 f5-/+) 59...Kd7 (59...f6 60.Re1–+) 60.Rd2 Kc6 61.Rd8 Kc5 62.Rh8 Kd4 63.Rh5 Ke4 64.Kg1 (better is 64.Kh2–+) 64...Kf3 65.Kh2 Ra4 66.Rh7 Rf4 67.Rh5 Rf5 (67...Rd4!? 68.Rg5 Rd2 69.Kg1–+) 68.Rh4 (68.Rh7 Ke3–+) 68...Re5 69.Rb4 Re2 70.Kh1 (70.Kg1 f5–+) 70...Kg3 (better is 70...f5!? 71.Kg1–+) 71.Rb3 Kh4 72.Kg1 e5 (72...f5 73.Kf1 Rc2 74.Re3–+) 73.Rf3-/+ e4 (73...Rc2 74.Rf7 Kh3 75.Rg7-/+) 74.Rf7 Kh3 (74...Rb2 75.Kf1-/+) 75.Rg7 (75.Kf1!? Rb2 76.Rf4+=) 75...Rb2 (75...Rc2 76.Kf1 Kh4 77.Re7+=) 76.Kf1 ½–½. Koerner,Helmut (1845) – Otte,Marco (2065), Berliner Sommer, 1995.

7.Be2 dc4!? 8.Qc4 b6=.

7.Be2 dc4 8.Bc4 b5 9.Be2 Be6 10.Qc2 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Na6 (13...Qd6 14.Bc3=+) 14.Bc3 (better is 14.Bf6 Bf6 15.Qc6 Nb4 16.Qb5 Nc2 17.Kd1-/+) 14...c5 (better is 14...Qd6=+) 15.bc5+/- Nc5?? (better is 15...Bf5 16.d3 Qc7+/-) 16.Bf6+– Bf6 17.d4?? Nd7 18.Bb5 Qa5-/+ 19.Nc3 Rc8 20.Kd2 Nb6 21.Rb1? Bf5?? 22.Bd3? Nc4–+ 23.Ke2 Na3 24.Ra1? Rc3 25.Bf5 Rc2 26.Bc2 Qb5 27.Bd3 Qb2 28.Nd2 Qa1 0–1. bluepiramid2 (1745) – milanista (1745), kurnik, 2012.

7.Be2 e6 8.0-0+= Nbd7 9.d4 Ne4 10.Nfd2 f5 11.f3 Nd2 12.Nd2 Nf6 13.c5 Bd7 14.a4 Bh6 15.f4 Kh8 16.Nf3 Ne4 17.Qc2 g5 18.Ne5+/- gf4 19.ef4 Be8 20.Ra3 Rg8 21.Rh3 Bg7 22.Qc1 Be5 23.fe5+/- Qg5 24.Qg5 Rg5 25.Rf4 Bf7 26.Rfh4 Rg7 27.Bc1 Bg6 28.Bh5 Bh5= 29.Rh5 Rag8 30.Kf1 Re7 31.Rf3 Rg4 32.g3 Reg7 33.Bf4 Ng5 34.Rb3 Ne4+= 35.b5?? Rf4!–+ 36.Ke1 Rfg4 37.bc6 bc6 38.a5 Rc7 39.Rh6 Nc5 40.dc5 Re4 41.Kf2 Re5–+ 42.a6 Re4 43.Rh5 Ra4 44.Rg5 h6 45.Rg6 Kh7 46.Re6 Ra6 47.Kf3 Ra2 48.h4 Rc2 49.Rf6 Rc5 50.Rf5 a5 51.Re3 Rc1 52.Kg4 a4 53.Re6 a3 54.Rff6 a2 55.Rh6 Kg8 (56.Re8 Kg7–+) 0–1. Hansen,Berno – Hougard,Lars, VRS, 1989.

7.Bf6 Bf6 8.d4 a5=.

6.Nc3 0-0

7.Qb3 e6 8.a4 a5 9.b5 Nbd7 10.Ba3 Re8 11.Rb1 Ne4 12.d4 Nc3 13.Qc3 e5 14.bc6 ed4 15.cb7 Bb7 16.Nd4 Rb8 17.c5 Qh4+= 18.Rd1 Bc6 19.Bb5 Rb5 20.ab5+/- Bb5 21.Qd2 Ba4+= 22.0-0 Bd1 23.Rd1 a4 24.Nf3 Qc4 25.Qd5 Qd5 26.Rd5 Nf6 27.Rd4 Rb8 28.g3 Rb1? 29.Kg2+– Ra1 30.Rd8 Bf8 31.Bb2 (31.Bb2 Kg7 32.Ba1 Bc5 33.Ng5+–) 1–0. De Visser,Arno – Kemperink, Alkmaar, 1998.

7.d4 Ne4 8.Ne4 de4 9.Nd2 f5 10.a4 Nd7 11.Qb3 Kh8 12.c5 Nf6 13.Be2 Nd5 14.b5 Qe8 15.Bc4 e6 16.g3 Bd7 17.Nb1 Qe7 18.Nc3 h6 19.Nd5 ed5 20.Be2 g5 21.Kd2 f4 22.gf4 gf4 23.Rag1 fe3 24.Qe3 Qf6 25.Rg2 h5 26.Ke1 Bh6 27.Qb3 h4 28.h3 Bf4 29.Bg4 Bg4 30.hg4 Rae8 31.Qd1 Bg5 32.Rh3 Qh6 33.Kf1 Re7 34.Qe2 Ref7 35.Bc3 Rf3 36.Rgh2 Qf6 37.Bd2 Bd2 38.Rh4 Kg8 39.Qd2 e3 40.Qc2 Rf2 41.Rf2 Qf2 42.Qf2 Rf2 43.Ke1 ½–½. Kilpatrick – Craig, corr SCCA 1979.

7.d4 Bg4 8.h3 Bf5 9.Qb3 e6 10.Nh4 Nbd7 11.Nf5 gf5 12.Bd3 Ne4 13.a4 Qh4 14.Ne4 fe4 15.Be2 Rad8 16.b5 Qg5 17.g3 c5 18.Qd1 Nb6 19.h4 Qh6 20.Qc2 cd4 21.ed4 Nc4 22.Bc4 Rc8 23.0-0 Rc4 24.Qd1 e3 25.Qd3 ef2 26.Rf2 Qg6 27.Qg6 hg6 28.Rd2 Rfc8 29.Ra3 Rc2 30.Rad3 R8c4 31.a5 Rd2 32.Rd2 Rb4 33.Bc3 Rb3 0–1. Kilpatrick – Jenkins, corr SCCA 1979.

7.cd5 cd5 8.Rc1 Nc6 9.b5 Nb4 (better 9...Na5!?=) 10.Qb3 a5 11.ba6 (11.a3 d4 12.Nd4 e5+/-) 11...Na6+= 12.Nd5?? (12.Na4 b5 13.Bb5+/-) 12...Qd6?? (better 12...Nd5 13.Bg7 Kg7-+) 13.Nf6 Kh8?? (better 13...Bf6 14.Bf6 ef6+/-) 14.Ne8! Kg8 (14...Re8 15.Qf7 Double attack (15.Qf7 Decoy)) 1-0. opperwezen (2685) - HighContrast (2560), lichess.org, 2017.

7.Be2 Nbd7 8.b5 dc4 (8...Nc5 A) 9.bc6 bc6 (9...dc4 10.cb7 Bb7 11.Bc4 Rb8 12.Qc2 Qa5 13.0-0) 10.Na4 Nce4 11.0-0 dc4 12.Rc1 Rb8 13.Be5; B) 9.Na4 Nce4 (9...Na4 10.Qa4 Qb6 11.cd5 cb5 12.Qb3 Rd8 13.Bd4) 10.bc6 dc4 11.0-0 Qd5 12.cb7 Bb7 13.Rb1; C) 9.d4 Nce4 (9...Nfe4 10.–0 dc4 11.bc6 bc6 12.Rc1 Nc3 13.Bc3) 10.–0 Nc3 11.Bc3 Ne4 12.Bb4 Be6 13.Rc1; 8...Nb6 A) 9.d3 dc4 (9...Be6 10.Nd4 dc4 11.Ne6 fe6 12.dc4 Qd1 13.Rd1) 10.dc4 cb5 11.cb5 Ne4 12.Rc1 Qd1 13.Bd1; B) 9.cd5 cb5 (9...Nfd5 10.bc6 bc6 11.Qc1 Rb8 12.Nd5 Nd5 13.Bg7) 10.Qb3 Nfd5 11.Nb5 Bb2 12.Qb2 a6 13.Nc3; 8...cb5 9.cb5 Nc5 (9...Ne4 10.–0 Nb6 11.Rc1 Nd6 12.Ba3 Be6 13.Nd4) 10.–0 Bf5 11.Nd4 Bd7 12.Rc1 Qb6 13.Nb3) 9.bc6 (9.Bc4 cb5 (9...Nb6 10.Be2 cb5 11.Nb5 a6 12.Nc3 Bg4 13.h3) 10.Bb5 a6 11.Be2 b5 12.0-0 Bb7 13.Rc1) 9...Nb6 (9...bc6 10.Bc4 Rb8 11.Na4 Nd5 12.Bg7 Kg7 13.0-0) 10.cb7 Bb7 11.0-0 Nfd7 (11...Ne4 12.a4 Qc8 13.Qc1) 12.d4 (12.Rb1 Nc5 13.Qc2) 12...cd3 13.Qd3 Ne5 14.Qd8 Rfd8 15.Ne5 Be5 16.Rfd1 Rac8 17.Rd8 Rd8 18.Rd1 Rc8 19.Rc1 Nc4 20.Nd5 Bb2 21.Rc4 Rc4 22.Bc4 Bd5 (22...e6!? 23.Nc7 Be5+=) 23.Bd5= e6 24.Bb3 Kf8 25.Kf1 Ke7 26.Ke2 Kd6 27.Kd3 Kc5 28.g4 Kd6 29.f4 h6 30.f5 gf5 31.gf5 ef5 32.Bf7 Ke5 ½–½. Lopez Gajete,A (1870) – Martinez Gonzalez,Fco (1875), Malaga ESP, Regional Ch, 2013.

7.Be2 Nbd7 8.d4 Re8 9.Rc1 e6 10.–0 b6 11.a4 Bb7 12.c5 bc5 13.bc5 Bc8 14.Na2 Rb8 15.Qc2 e5 16.Ne5 (better is 16.Rb1!?+=) 16...Ne5+= 17.de5 Bf5 18.Qc3 Ne4 19.Qa3 Nd2 20.Nb4 Qh4 21.f4?? (21.Nc6 Nf1 22.Bf1+/- (worse is 22.Kf1 Qh2 23.Bb5 Qh1 24.Ke2 Bg4 25.Kd3 Qg2 26.Nb8 Rb8-/+)) 21...Nf1-/+ 22.Bf1 Bd7 23.Bd4 a5 24.Nc2 Rb7 25.Bc3 Ra8 26.Nd4 Qd8 27.Be2 Rab8 28.Bd3 Qc7 29.e4 Bf8 30.Be1 Qd8 (30...Be6!?=) 31.ed5+= cd5 32.Qa2 Rb2 33.Qd5 (better is 33.Qa1!? Be8 34.c6+/-) 33...Ba4= 34.Qd8 Rd8 35.Bc3 Bc5 36.Bb2 Bd4 37.Bd4 Rd4 38.Rc4 Rc4 39.Bc4 Bd7 40.Kf2 Be6 (40...a4!? 41.Ke3 h6=) 41.Be6+= fe6 42.Ke3 Kf7 43.Kd4?? (better is 43.g4+/-) 43...g5–+ 44.fg5 Kg6 45.h4 Kf5 46.g3 a4 47.Kc3 (47.Kc4 Ke5 48.Kb4 Kf5=) 47...Ke5 48.Kb4 Kf5 49.Ka4 Kg4 50.Kb3 e5 51.Kc2 Kf3 52.h5 e4 ½–½. Schiffler,L – Platz, corr, 1951.

7.Be2 Bg4 8.Qb3 dc4 9.Bc4 Bf3 10.gf3 Nbd7 11.d4 e5 12.Ne2 Qe7 13.0-0 e4 14.fe4= Ne4 15.Rad1 Rfe8 16.Bc1 b5 17.Bd3 Nb6 18.Qc2 Rac8 19.a3 a6 20.Kh1 Kh8 21.Nc3 Nd6 22.Rg1 f5 23.Nb1 Ne4 24.Rg2 Nd5 25.Rdg1 Qh4 26.Rf1 Rc7 27.Nd2 Nd2 28.Bd2 Qf6 29.Bc1 Qd6 30.Qd1 Nc3 31.Qf3 Rf7 32.h4 Ne4 33.Qh3 ½–½. Tao,T (2390) – Johansen,D (2495), ch–AUS, Adelaide AUS, 2004.

7.Be2 Bg4 8.Qb3 Be6 9.Nd4 dc4 10.Ne6 cb3 11.Nd8 Rd8 12.ab3 Nbd7 13.b5 cb5 14.Bb5 a6 15.Be2 Nc5 16.d4 Nfe4 17.Ne4 Ne4 18.f3 Nc5 19.Bc4 b5=+ 20.Ba3 bc4-/+ 21.Bc5 cb3 22.Be7 Re8 23.Bc5 Re3 24.Kd2 Bh6 25.Rhe1 Rf3 (26.Ke2 Re3 27.Kf2 Re1 28.Ke1 a5–+) 0–1. Polakowski,Jan (1965) – Mueller,Michael (2190), Bahn–chG Bad Wildungen, 2000.

6.cd5 cd5

7.Bb5 Nc6 8.Ne5 Qd6 9.Qc1 Bd7 10.Nd7 Qd7 11.0-0 0-0 12.Bc6 Qc6 13.Qc6 bc6 14.Rc1 Rfc8 15.d4 Rab8=+ 16.a3 a5 17.Bc3 ab4 18.Bb4= Rb7 19.h3 Ne4= 20.Nc3 Nc3 21.Rc3 e5 22.Rac1 ed4 23.Rc6 Rc6 24.Rc6 d3?? 25.Rc8+– Bf8 26.Rf8 Kg7 27.Rd8 Rb5 28.Kf1 Kf6 1–0. Meireles,Jose Gilberto – Vieira,Benedito R, TBI–C–XV–P–0017, 1997.

7.Bb5 Bd7 8.Qa4 0-0 9.0-0 a6 10.Bd7 Nbd7 11.Rc1 Nb6 (11...Rc8 12.Na3=) 12.Qa5 (12.Qb3 Rc8=) 12...Qd6 (12...Rc8 13.Rc8 Qc8 14.Na3= (14.Qb6?? Nd7 15.Qd4 Bd4 16.Nd4 e5–+)) 13.Be5 Qd8 (13...Qe6 14.d3=) 14.Bc7+= Qc8 (14...Rc8 15.Qb6 Ne8 16.d4 (16.Bd8?? Rc1 17.Ne1 Re1) 16...Rc7 17.Nc3=) 15.Na3 (< 15.Qb6 Nd7 16.Qa5 Ba1 17.Qd5 Nf6=+) 15...Nbd7 16.d4 Nb8 17.b5 (17.Be5 Nc6 18.Qa4 Qd7=) 17...Qe6 18.Rc3 Nbd7 19.b6 Ne4 20.Rb3 (20.Rc2 Rac8=) 20...h6 (20...Rfc8 21.Nc2=) 21.Rc1 Rac8 22.Rc2 (22.Rb2 Rfe8=) 22...Ndf6 (22...Nb8 23.Rb1=) 23.Rb1 (23.Ne5 Nd7 24.Nd3 Qf5+=) 23...Ne8 24.Rbc1+= Qd7 25.Ne5 Be5 26.Be5 Rc2 27.Rc2 e6 28.f3 N4d6 29.Bd6 Qd6 30.Qc5 Qd7 31.e4 de4= 32.fe4 f6 33.Nc4+/- Qa4 34.Ne3 Rf7 35.Qc8 Qd4? 36.Qe8+– Kg7 37.Kf1?? Qe3= 38.Qe6 Qd3=+ 39.Re2 f5 40.Qe5 ½–½. Popp,Tony – Lempeae,Pekka (1625), IECC, 1998.

7.Bb5 Bd7 8.Bf6 Bf6 9.Bd7 Qd7 10.d4=.

7.Bb5 Nbd7 8.Ne5 (8.0-0 0-0=) 8...0-0 9.Nd7 (9.0-0 Ne5 10.Be5 Bg4=) 9...Bd7=+ (< 9...Nd7 10.Bg7 Kg7 11.0-0=) 10.Bd7 Qd7 11.Qb3 (11.0-0 Rfc8=+) 11...h5 (11...Rfd8 12.0-0=+) 12.0-0= Rfe8 (12...Rfc8 13.Bf6 Bf6 14.Nc3=) 13.d3 (13.Bf6 Bf6 14.Nc3 Bc3 15.Qc3 Rec8=) 13...a5 (13...Rec8 14.Bf6 Bf6 15.d4=) 14.ba5 Ra5 15.Na3 (15.Rc1 Rea8=) 15...Rc5 (15...Rea8 16.Rfb1=) 16.Rac1 (16.Rfc1 Rec8=) 16...Rec8 (16...Rc6 17.Be5=) 17.Rc5 Rc5 18.Bd4 Rc8 (18...Ra5 19.Rb1=) 19.Rb1 Qc7 20.Qb2 (20.Qb7?? Qc1 21.Rc1 Rc1) 20...Ne8 (20...Ng4 21.Bg7 Qh2 22.Kf1 Qh1 23.Ke2 Qg2 24.Rf1-/+) 21.Bg7+= Ng7 22.h3 Ra8 23.Rc1 Qa5 24.Rc3 Ra7 25.Rc8 Kh7= 26.Nb5 Qa2 27.Qb4 Qa1 28.Kh2= Ra8 29.Rc7 Qe5=+ 30.g3 Qf5 31.Qf4? (better is 31.Qb2 Re8 32.Nd4 Qd3 33.Qb7= (< 33.Rb7 Qe4-/+)) ½–½. Jensen,Helmut – Richter,Gerhard, GER–chT Seniors, 1996.

7.Nc3 0-0=.

7.Nc3 e6 8.Be2 0-0 9.0-0 a6 10.a3 Nc6 11.d4 b5 12.Rc1 Bb7 13.Nb1 Rc8 14.Nbd2 Nd7 15.Nb3 f5 16.Qd2 Bh6 17.g3 Qf6 18.Nc5 Nc5 19.dc5 Qf7 20.Nd4 Bg7 21.Nc6 Bc6 22.Bg7 Qg7 23.Qd4 e5 24.Qb2 Qe7 25.Bf3 Rcd8 26.Rcd1 Rf7 27.Rd2 h5 28.Rfd1 e4 29.Bg2 h4 30.Bf1 Rh7 31.Qc3 Kf7 32.Be2 Rdh8 33.Bf1 hg3 34.fg3 Qg5 35.Qe5 Qe3-/+ 36.Kh1 Rc8 37.Rd5 Bd5 38.Qd5 Kf6 39.Qd6 Kg5 40.Bg2?? Rh2!! 41.Kh2 Rh8 42.Bh3 Qf2 43.Kh1 Rh3 0–1. Fournier,Frederic (1760) – wisago (1740), Active, 2011.

7.d3 0-0 8.Qb3 e6 9.Nbd2 Nc6 10.a4 a6 11.b5 ab5 12.ab5 Na5 13.Qa4 Nd7 14.Bg7 Kg7 15.Be2 Qf6 16.0-0 Nc5 17.Qc2 Qe7 1–0. Razo,Ryan Jose – Bieszk,Stanislaw, SN–2011–0-00371, 2011.

7.Be2 e5 8.Be5 Qb6 9.a3 Nc6 10.Bg3 Ne4 11.Ra2 Ng3 12.hg3 Bg4 13.Nc3 0-0 14.Na4 Qd8 15.Nc5 b6 16.b5 Na5 17.Na6 d4 18.Nd4 Be2 19.Ne2 Qd5 20.Nb4 Qg2 21.Rg1 Qe4 22.Nf4 Nc4 23.d3 Bc3 24.Kf1 Qe7 25.dc4 Bb4 26.Nd5 Qd8 27.ab4 Qd6 28.Qd4 f6 29.Rd2 a6 30.c5 bc5 31.bc5 Qd8 32.b6 Rb8 33.c6 Kg7 34.c7 1–0. Adamkosh (2030) – hoss999, lichess.org, 2020.

7.Be2 0-0

8.0-0 a5 9.b5 Nbd7 10.a4 Nb6 11.d3 Bg4 12.Nbd2 Re8 (12...Qc7 13.Be5 Qd7 14.Nb3+=) 13.Nb3+= Nbd7 (13...Ra7 14.Qd2+=) 14.Ne5 Be2 15.Qe2 Rc8 (15...Qb6 16.Qf3 Qd6 17.Nd7 Nd7 18.Bg7 Kg7 19.d4+=) 16.Nd7 (16.Rac1 Nb6 17.Rc8 Nc8+/-) 16...Nd7 (16...Qd7 17.Na5 h6 18.Rfc1+/-) 17.Bg7 Kg7 18.Qd2 (18.Rac1 e5+=) 18...b6 19.Rfc1 Nf6 20.Rc6 (20.Rc8 Qc8 21.Nd4 e5+=) 20...Rc6= 21.bc6 Qd6 22.Qc3 Rc8 23.Rc1 Qa3 24.f4 (24.Nd4 Qa4 25.f4 h6+=) 24...Qa4 25.Nd4 Qb4 (25...h6 26.Ra1 Qb4 27.Qb4 ab4 28.Ra4+=) 26.Qb4 ab4 27.h3 (27.Rb1 Ng4 28.Rb4 e5 29.fe5 Ne5 30.Rb6 Nd3+/-) 27...Ne8 (27...Ng8 28.g4+=) 28.Rb1+/- f6 (28...Nc7 29.Rb4 b5+/-) 29.Rb4 (better is 29.f5!?+/-) 29...e5= 30.fe5 fe5 31.Nf3 Rc6 32.Ne5 Rd6 (32...Re6 33.d4=) 33.Kf2 Kf6 34.Nf3 Nc7 (34...h6 35.e4 de4 36.de4+=) 35.e4 de4 36.de4 Ke7 (36...Re6 37.Rc4 Na6 38.e5 Kg7 39.Ke3+=) 37.e5+/- Re6 38.Nd4 (38.Rh4 h5+/-) 38...Nd5+= 39.Ra4 (worse is 39.Ne6 Nb4 40.Ng5 Nd3 41.Ke3 Ne5 42.Nh7 b5=) 39...Re5 40.Nc6 Kd6 41.Ne5 Ke5 42.Ra7 h5 43.Rb7 (43.Kf3 Kf5+/-) 43...Kd4 (43...Ke4 44.h4+=) 44.h4 Kc4 (44...Kc5 45.Rg7 b5 46.Rg6+–) 45.Rg7 b5 46.Rg6 b4 47.Ke1 (47.g4 hg4 48.Rg4 Kd3 49.Rg3 Kd2+–) 47...Kc3 (47...b3 48.Kd2+–) 48.Rc6 (48.Rg5 Nf4 49.Rc5 Kd4+–) 48...Kd3 49.Rd6 Ke4 (better is 49...Kc4!?+–) 50.Kd2 b3 51.Rd8 (51.Rh6 Kd4 52.Rh5 Nc3+–) 51...b2 (51...Kd4 52.Kc1+–) 52.Rb8 Kf4 53.Rb2 Kg3 54.Ke1 (54.Rb7 Kh4 55.Rg7 Nf6+–) 54...Nf4 55.Kf1 Kh4 56.Rb8 Kg4 57.Rg8 (57.Kf2 Nd3 58.Ke3 Ne5 59.Rg8 Kf5 60.Rf8 Kg4+–) 57...Kf5 58.Kf2 Ng6 (58...h4 59.Ra8 Ng6 60.Ke3+–) 59.Ra8 (59.Ke3 h4+–) 59...Kf4 (59...h4 60.Ke3+–) 60.Ra4 Kf5 61.Kg3 1–0. Fries_Nielsen,Jens Ove (2380) – Christensen,Tobias (2305), Open Lyngby DEN, 1991. (=1.Nf3 d5 2.e3 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 c6 6.cd5 cd5 7.Be2 0-0)

8.0-0 a6 9.a4 Nc6 (9...Bg4 10.b5=) 10.b5 ab5 (10...Na5 11.Na3=) 11.ab5 Ra1 12.Ba1 Nb8 13.Qb3 b6 14.Rc1 Bb7 (14...Nbd7 15.Ne5 Nc5 16.Qb4+=) 15.Bd4 (15.Be5 Nbd7+=) 15...Nfd7 (15...Nbd7 16.Qa3+=) 16.Bg7+/- Kg7 17.Qc3 (17.Qa2 e6+/-) 17...Kg8 (17...Nf6 18.Qc7 Qc8 19.d4+/-) 18.d4 Nf6 19.Qb4 Nbd7 20.Nbd2 (20.Nc3 Ne4+/-) 20...Re8 21.Ne5 (21.Bd3 Qb8+/-) 21...Ne5+= 22.de5 Nd7 23.f4 (23.Qd4 Qb8+=) 23...Nc5 24.Nf3 (24.Nb3 Nb3 25.Qb3 Qd7+=) 24...Qa8 25.Qb2 Qa4 26.Nd4 (26.Bd1 Qe4 27.Rc3 Nd3+=) 26...Ra8= 27.h4 e6 28.g4 Kg7 29.h5 Qa3 30.Qa3 Ra3 31.Kf2 Ne4 32.Kf3 Nc5 33.hg6 hg6 34.f5 (34.g5 Kf8+=) 34...g5 (better is 34...Kg8!?=) 35.fe6+/- fe6 36.Rh1 (36.Rc5!? bc5 37.Ne6 Kg6 38.Nc5+/-) 36...Ra8 (36...Bc8 37.Rh5 Ne4 38.Bd1=) 37.Kg2 (37.Rh5 Kg6+=) 37...Rh8 38.Rh8 Kh8 39.Bd1 (39.Nf3 Kg7+=) 39...Kg7= 40.Bc2 Kf7 41.Kf2 Nd7 (41...Kg7!?=) 42.Nf3+= Ke7 (42...Kg8 43.Kg3 Bc8 44.e4+=) 43.Kg3 (better is 43.Ke2!?+/-) 43...Ba8 ½–½. Koerner,Helmut (1770) – Hartmann,Hans, 7th Berlin–ch Seniors, 2011.

8.0-0 b6 9.Qb3 (9.Bf6 Bf6 10.d4 Qd6=) 9...Bb7 (9...a5 10.ba5 Ra5 11.Bc3+=) 10.b5 (10.Rc1 a6+=) 10...a6 (10...Qd6 11.Rc1+=) 11.Rc1 ab5 12.Bb5 Ne4 (12...Na6 13.Bd4+=) 13.Bg7+/- Kg7 14.d3 Nf6 15.d4 Ba6 (15...Qd6 16.a4+=) 16.Nc3+/- Bb5 (16...Qd6 17.Ne5+/-) 17.Nb5 e6 (17...Ra5!?+/-) 18.Nc7+– Ra7 (18...Ra5 19.Qb6 Ra4 20.Ne5+–) 19.Qb6 Ra3 (19...Ra4 20.Ne5+–) 20.Ng5 Kg8 (20...Qe7 21.Nge6! fe6 22.Ne6 Kf7 23.Nf8 Qf8 24.Qc7 Nbd7 25.Rc2+–) 21.Qb4 (better is 21.Qc5 Ra4 22.Nge6 fe6 23.Ne6+–) 21...Ra6? (21...Ra7 22.Nge6! fe6 23.Ne6 Na6 24.Qf8 Qf8 25.Nf8 Kf8+–) 22.Na6 Na6 23.Qb7 Nb8 (23...Qa8 24.Rab1 h6 25.Nf3+–) 24.a4 Nbd7 (24...h6 25.Nf3+–) 25.a5 Qa8 26.a6 Rb8 (26...h6 27.Nf3+–) 27.Qa8 (27.Qc6 h6 28.Nf3 Kf8+–) 27...Ra8 28.Rc7 1–0. michaelbuss (2840) – Norfolk Blue (1880), ChessWorld.net, 2015.

8.0-0 Qb6 9.a3 Bd7 10.Bd4 Qd8 11.Qb3 Nc6 12.Bc3 e6 13.d3 Ng4 14.Bg7 Kg7 15.Nbd2 h6 16.h3 Nf6 17.Qb2 Kg8 1–0. Gaprindashvili,V (2380) – Ozgur,S (2155), TCh–TUR First League, 2015. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4 c6 6.cd5 cd5)

8.0-0 Re8 9.Nc3 Nc6 10.b5 Na5 11.Rc1 Bf5 12.d3 a6 13.h3 Qd6 14.Ba1 Rec8 15.Qd2 Bd7 16.Rb1 e6 (16...ab5 17.Nb5 Qa6 18.Nc3=) 17.ba6 (17.Rfc1 ab5 18.Nb5 Rc1 19.Qc1 Bb5 20.Rb5 Nc6=) 17...Ra6 18.Rfc1 (18.e4 de4 19.Ne4 Ne4 20.de4 Qd2 21.Nd2 Rac6 22.Bg7 Kg7=) 18...Rb6 (18...Rac6 19.d4=) 19.Bd1 Rb1 20.Rb1 Ne8 (20...Qa6 21.e4=) 21.Ne2+= Ba1 (21...Ra8 22.Bc3 Bc3 23.Nc3+=) 22.Qa5 Bf6 23.Rb7 Bc6 24.Rb1 Ra8 25.Qd2 Qc7 (25...e5 26.Nc3+/-) 26.Ned4 Bd7 27.Nb5 (27.Bb3 Nd6+=) 27...Qb7 (27...Qb6 28.a4+=) 28.a4 Nd6 29.d4 Bb5 30.ab5 Nc4 (30...Nb5?? 31.Be2+–) 31.Qc1 (31.Qd3!?+/-) 31...Ra5= The isolani on b5 becomes a target 32.Be2 Rb5 33.Rb5 Qb5 34.Bc4 (better is 34.Qf1=) 34...dc4 (better is 34...Qc4!? 35.Qa3 h6=) 35.Nd2+/- e5 36.de5 (36.Qc4?! Qc4 37.Nc4 ed4 38.ed4 Bd4=) 36...Qe5 37.Qc4 Qa1 38.Kh2 h5 (38...h6 39.Ne4+/-) 39.g3 (39.Ne4 h4+/-) 39...Qb2 40.Qd5 Qe5 41.Qa8 Kg7 42.Kg2 Qe6 43.Qe4 Qe4 44.Ne4 Bd8 45.f4 f6 (45...h4 46.g4+/-) 46.Nd6 Be7 47.Nb5 Kf7 48.Nd4 f5 49.Kf3 Bc5 50.g4 fg4 51.hg4 hg4 52.Kg4 Kf6 53.Nc2 Ke6 (53...Be7 54.Ne1+–) 54.e4 Bb6 (54...Kf6 55.Ne1+–) 55.Ne1 (55.Nb4 Kf7+–) 55...Bd4 (55...Bd8 56.Nf3+–) 56.Nf3 White intends e5 56...Bg7 (56...Bf6 57.Ng5 Kd7 58.e5+–) 57.Kg5 Kf7 58.e5 Bf8 59.Kg4 Bc5 60.Ng5 Ke7 61.Kf3 Kd7 62.Ke4 Ke7 63.Nf3 Kf7 (63...Bf2 64.Nd4+–) 64.Nd4 Bb4 65.Kd5 (65.e6 Kf6 66.Kd5 Ba3+–) 65...Bd2 66.Ne2 (66.e6 Ke7 67.Nc6 Ke8+–) 66...Ke7 67.Ke4 Ba5 68.Nd4 Kd7 (68...Be1 69.Kf3+–) 69.Nf3 Bd8 (69...Ke6 70.Nh4 Kf7 71.Kd5+–) 70.Kd5 Ke7 71.Nh4 Kf7 72.Ng2 (72.Ng6 Kg6 73.Ke6 Ba5+=) 72...Be7 73.Ne1 ½–½. forsetinn (2435) – marekt (2180), gameknot.com, 2015.

8.0-0 Re8 9.d3 Nbd7 10.Nc3 Nf8 11.Rc1 Bd7 12.Qb3 e6 13.Ne5 Qb6 14.d4 Rec8 15.Nd7 N8d7 16.Bd3 h5 17.h3 Ne8 18.Na4 Qd8 19.e4 de4 20.Be4 Nd6 21.Bf3 Rc1 22.Rc1 Rc8 23.Nc5 Rc7 24.Re1 Nb6 25.Re6 Ndc4 26.Re1 Nb2 27.Qb2 ½–½. Hecht,Hans Joachim (2455) – Dankert,Peter (2275), Bundesliga, 1986. (=1.Nf3 d5 2.e3 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 c6 6.cd5 cd5)

8.0-0 Bf5 9.Bf6 Bf6 10.d4=.

8.0-0 Bf5 9.h3 Nc6 10.b5 Na5 11.d3 b6 12.Nbd2 Rc8 13.Nb3 Qd7 (13...Nb3 14.Qb3 Qd7 15.Ne5+=) 14.Na5 ba5 15.a4 Bh3? (better 15...Qd6+/-) 16.Ne5+- Qe6 17.gh3 Qh3 18.Bf3 (18.Nc6 Rce8+-) 18...h5 (18...Rc7 19.Rc1 Rc1 20.Qc1+-) 19.Bg2 Qh4 20.Qd2 Ng4?? (20...e6+-) 21.Nf3 Bb2 22.Nh4 (22.Qb2?! Qf6 23.Qf6 Nf6+-) 22...Bc3 23.Qa2 Ba1 24.Qa1 Rc2 (24...e6 25.Qd4+-) 25.Bd5 Rd8 (25...e6 26.Bf3+-) 26.Ng6 e5 27.e4 Rdc8 (27...Re8 28.d4 Kg7 29.Ne5 Ne5 30.de5+-) 28.Ne7 (28.Ne7 Kf8 29.Nc8 Rc8 30.Qa3 Kg7 31.Qe7+-) 1-0. Owczarzak,J (2325) - Buksa,N (2410), Euro Online Blitz Quali, 2020.

8.d3 Nc6 9.a3 b5 10.Nbd2 Bg4 11.Rc1 Qd6 12.0-0 Rfc8 13.Nb3 a6 14.Qd2 h5 15.h3 Bf3 16.Bf3 e5 17.Rc5 Ne7 18.Rc8 Rc8 19.Rc1 Rc1 20.Qc1 Nd7 21.Qc2 Kf8 22.Be2 ½–½. Cruz,Cristhian (2495) – Gonzalez de la Torre,Santiago (2435), Elgoibar ESP, 2012. (=1.Nf3 d5 2.e3 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 c6 6.cd5 cd5)

6.h3 0-0

7.Nc3 a5 8.b5 Nbd7=.

7.d4 Nbd7 8.c5 (8.Nbd2 a5=) 8...b6 9.Bd3 Re8 (9...Rb8 10.cb6 Qb6 11.a3=) 10.Nbd2 (10.0-0 a5=) 10...Qc7 (10...a5 11.Qa4 b5 12.Qb3=+) 11.0-0 Bb7 (11...a5 12.Qa4=) 12.Rc1+= Rac8 (12...Reb8 13.a4+=) 13.a4 (13.Qa4 Ra8+=) 13...a5 14.b5 (14.Bc3 bc5 15.bc5 Rb8+=) 14...bc5= 15.dc5 cb5 16.Bb5 (better is 16.c6!? Bc6 17.ab5+/-) 16...Rb8?? (better is 16...Bc6+=) 17.c6+– (17...Bc6 18.Rc6+–) 1–0. Sternik,Ryszard – Bivens, corr 3GMM–25, 1995.

7.d4 Bf5 8.Be2=.

7.Be2 Nbd7 8.Na3 e6 (8...e5 9.Ne5 Ne5 10.Be5=) 9.0-0= Qe7 10.Nc2 (10.Rb1 b6=) 10...e5+= 11.b5 (11.d4!? e4 12.Nd2+=) 11...e4-/+ 12.Nfe1 (12.Nfd4 c5 13.Nb3 Rd8-/+) 12...Re8 (12...c5 13.Na3-/+) 13.Rb1 (13.bc6 bc6 14.Rb1 c5+=) 13...Ne5 (13...c5!?-/+) 14.cd5+= cd5 15.f4 (15.Nd4 Bd7+=) 15...ef3 (15...Nc4 16.Nd4-/+) 16.Nf3+= Nf3 (16...Nc4 17.Bc3+=) 17.Bf3= Ne4 (17...Bf5 18.d3=) 18.d3 (18.Bg7 Kg7 19.Nd4 Qd6=) 18...Bb2+= 19.Rb2 Ng3 (19...Qe5 20.Rb3 Ng3 21.Re1+=) 20.Re1 (worse is 20.Bd5 Nf1 21.Qf1 Be6–+) 20...Qg5 21.Qc1? (better is 21.Nb4!? Be6 22.Qa4+=) 21...Bh3!–+ 22.Nd4 (22.gh3 Ne2 Double attack (22...Qf5 Decoy)) 22...Rac8 23.Qd2 Bg4 (23...Bd7 24.b6 a6 25.Rbb1–+) 24.Qf2 (24.e4 Qh4 25.e5 Bf3 26.Nf3 Qa4-/+) 24...Qh4–+ 25.Qd2 Qf6 0–1. Macedo,Alexandre Soares De (1870) – Cunha (1940), LXXXIV Championship Brasileiro Absoluto, 2017.

7.Be2 Be6 8.cd5 Nd5 9.Bg7 Kg7 10.Nc3+=.

7.Bf6 Bf6 8.d4 dc4 9.Bc4 b5=.

5.c4 e6

6.a3 a5 7.Nc3 ab4 (7...0-0 8.Be2=) 8.ab4 Ra1 9.Qa1 0-0 10.cd5 Nd5 11.Nd5 Bb2 12.Qb2 Qd5 (12...ed5 13.h4=) 13.Be2 b6 14.0-0 Bb7 15.Ra1 (15.Rc1 Rc8+=) 15...Nd7 16.Qc3 c5 17.bc5 Nc5 (17...Rc8 18.Qb2+=) 18.d4+= Ne4 19.Qb2. Janek – Oxedus, internet, 2018.

6.Qb3 c6 7.a4 0-0 8.Be2 Nbd7 9.d3 a6 (9...a5 10.0-0=) 10.Nbd2 (10.a5 b5+=) 10...b6 (10...dc4 11.Nc4 Qe7 12.0-0+=) 11.0-0+= Bb7 12.Ne5 Ne5 (12...c5 13.Rab1 Ne5 14.Be5+=) 13.Be5 Ne4 14.Bg7 Nd2 15.Qb2 Nf1 16.Bf8 Qf8 17.Bf1 b5 (17...dc4 18.dc4 Qg7 19.Qg7 Kg7 20.Rd1+=) 18.ab5 ab5 19.c5 (19.Ra8 Ba8 20.c5 f6+=) 19...Ra1+= 20.Qa1 Qd8 (20...Qa8 21.Qf6+/-) 21.Qe5+/- h5 22.f4 Kh7 23.g3 Bc8 24.h3 f6 25.Qb8 Qd7 26.Bg2 Kg7 27.Qa8 Qb7 28.Qa1 Qa6 29.Qb2 Qa4 30.Bf3 Kf7 31.Kf2 (31.e4 Ke7+/-) 31...Qa7 32.g4 (32.e4 Qe7+/-) 32...hg4+= 33.hg4 Qe7 34.Qa1 (34.e4 de4 35.Be4 Bd7+=) 34...Bd7 (34...e5 35.Qa8 Qc7 36.fe5 fe5 37.g5=) 35.Qh1+= Qf8 36.Kg3 (36.Ke1 Qg7+=) 36...Qg7= 37.Qh4 g5 38.Qh5 Qg6 (38...Ke7 39.Kf2=) 39.fg5 fg5 40.e4 Kg7 41.ed5 (41.Qg6!? Kg6 42.e5+=) 41...ed5 42.Qg6 Kg6 43.Kf2 Kf6 44.Ke3 Ke5 45.d4 Ke6 46.Bd1 ½–½. Schimnatkowski,Lukas (1965) – Bethke,Robert (1775), German Youth Championship Open A, 2016. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 g6 4.e3 Bg7 5.c4 e6)

6.b5 0-0 7.d4 Ne4 (7...a6 8.a4=) 8.Nc3 Nc3 9.Bc3 c6 (9...a6 10.Bb4 Re8 11.a4=) 10.h4 Qf6 (10...dc4 11.Bc4 a6 12.bc6 Nc6 13.h5+=) 11.h5+= Bd7 (11...g5 12.Rc1 h6 13.Ne5+=) 12.h6 (12.bc6!? Bc6 13.Bb4+=) 12...Bh8= 13.Qb3 (better is 13.cd5 cd5 14.Rc1=) 13...Be8?? (better is 13...Rc8=) 14.Bb4+– Nd7 15.Bf8 Kf8 16.cd5 cd5 17.Rc1 Nb6 18.Rc7 Rb8?? 19.Qa3 Kg8 20.Qa7 Qd8 21.Qb6 Bd4 22.Qd4 f6 23.Rg7 Kf8 24.Qc5 Qd6 25.Qd6 1–0. marre – oppo3, internet, 2010.

6.b5 c6 7.a4 Nbd7 8.cd5 cd5 9.Be2 Nc5 10.0-0 0-0 11.Nc3 b6 12.Ba3 Re8 13.Nd4 Nfe4 14.Nc6 Qc7 15.Rc1 Nc3 16.dc3 Bb7 17.Nd4 e5 18.Nf3 Ne4 19.c4 dc4 20.Rc4 Qb8 21.Qc2 a6 22.Re4 Be4 23.Qe4 ab5 24.Bb5 Rd8 25.g3 Qc7 26.Rc1 Qa7 27.Rc6 Rac8 28.Rc8 Rc8 29.Ne5 Be5 30.Qe5 Qb7 31.Bb2 Kf8 32.Qg7 Ke7 33.Ba3 Ke6 34.h4 Qf3 35.Qd4 Rc5 36.Bd7 Ke7 37.Bb5 Kf8 38.Bc5 bc5 39.Qc5 Kg7 40.Qc6 1–0. Abdullaevich (1840) – realehsan2000 (1890), lichess.org, 2018.

6.Nc3 0-0 7.Be2 a6 8.0-0 Nc6 9.a3 dc4 10.Bc4 b5 11.Bb3 Bb7 12.d4 Ne7 13.h3 Ned5 14.Nd5 Nd5 15.Qe2 Nf6 16.Rfc1 Ne4 17.a4 Ng5 (17...Qd6 18.ab5 Qb4 19.Rc7 ab5 20.Rb7 Ra1 21.Ba1 Qb3 22.Rb5+=) 18.Ne5+– ba4 (18...Qd6 19.ab5 Be5 20.de5 Qb4 21.Rc7 ab5 22.Rb7 Ra1 23.Ba1 Qb3 24.Rb5+–) 19.Ba4 h5 (19...Qd6!?+–) 20.Nd7+– a5 21.Nf8 Nh3?! (21...Bf8 22.f4 Ne4 23.ba5 Ra5+–) 22.gh3 Qg5 23.Kf1 Ba6 (23...Bg2 24.Ke1 Bf8 25.ba5 Qa5 26.Bc3 Qf5+–) 24.b5 Bb7 25.Ne6! Qg2 (25...fe6 26.Qc4 Double attack (26.Qc4 Decoy)) 26.Ke1 Bf3 (26...fe6 27.Rc7 Bf8+–) 27.Nf4 Qg1 28.Qf1 Qg5 29.Rc7 Bf8 30.Bb3 Bd6 31.Bf7 Kh7 32.Bg6 Kg8 33.Bh7 Kf8 1–0. Silent Move (2115) – ahmadh, redhotpawn.com, 2014.

6.d4 0-0 7.Qb3 dc4 8.Bc4 b6 9.Nbd2 Bb7 10.0-0 Nc6 11.a4 a5 12.b5 Ne7 13.Rac1 Rc8 14.Ba3 Re8 15.Ne5 Bd5 16.Be7 Qe7 17.Bd5 Nd5 18.Nc6 Qd7 19.Rfd1 Ne7 20.Nf3 Nc6 21.Rc6 Red8 22.Rdc1 Kf8 23.Kf1 Ke8 24.Qc2 e5 25.de5 Qd3 26.Qd3 Rd3 27.Rc7 Rc7 28.Rc7 Ra3 29.e6 Ra4 30.Ng5 Ra1 31.Ke2 f6 32.Ne4 1–0. Kaffeemensch – fairchess, playchess.de, 2002.

6.d4 Nbd7 8.Qc2 Re8 9.Be2 b6 10.–0 Bb7 11.a4 dc4 12.Nc4 Ne4 13.Rfd1 f5 14.Nce5 Ne5 15.Ne5 Bf8 16.Bb5 Bd6 17.Be8 Qe8 18.b5 Qe7 19.f3 Ng5 20.Nc6 Qf8 21.d5 Re8 22.de6 Re6 23.Qc4 Kf7? (23...Bc6 24.bc6 Qe8+–) 24.h4 Bc6 25.bc6 (25.Qc6 Bh2 26.Kh2 Rc6 27.bc6 Ne6+=; 25.hg5?! Bd7+–) 25...Qh6 (25...Nf3 26.gf3 Qh6+–) 26.Rd6 (better is 26.hg5 Qh2 27.Kf1 Qh1 28.Kf2+–) 26...Nf3 27.gf3 Qe3 28.Kg2 cd6 29.c7 Qd2? (29...Qe2 30.Qe2 Re2 31.Kg3 Re8+–) 30.Kh3 d5 31.Qb5 Qf4 32.Qd7 (32.Qd7 Re7 33.Qd5 Re6 34.c8Q Qh2 35.Kh2 Ke7 36.Qde6) 1–0. Dizdarevic,Emir (2540) – Cvorovic,Drazen (2425), Solin 5th, 1997. (=1.Nf3 d5 2.e3 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 e6)

6.cd5 ed5 7.Nc3 b6 8.Be2 Bb7 9.0-0 Nbd7 10.a3 Ne4 11.Qc2 Qf6?? (better is 11...0-0!?+=) 12.Rab1 (better is 12.Nd1 Qc6 13.Qc6 Bc6 14.Bg7+–) 12...0-0-0?? (better is 12...Nc3 13.Bc3 Qc6+–) 13.Ne4 (better is 13.Nb5 Kb8 14.Bf6 Ndf6 15.Qc7 Ka8 16.Ne5+–) 13...Qe7 14.Bg7 Rhg8 15.Bh6 f5 16.Bg5 Qe4 17.Qe4 de4 18.Bd8 Kd8 19.Ng5 1–0. Fournier,Frederic – rix (1745), Active (5/0), 2004.

6.Be2 0-0 7.0-0 b6 8.Qb3 Bb7 9.d3 Nbd7 10.Nbd2 Re8 11.Ne5 Ne5 12.Be5 Nd7 (better is 12...Ne4!? 13.Ne4 Be5+=) 13.Bg7+= Kg7 14.Bf3 c6 15.a4 a6 16.c5 f6 17.Qc3 b5 18.ab5 ab5 19.Ra8 Qa8 20.Ra1 Qb8 21.g3 Qc7 22.Nb3 Ra8 23.Na5 Ra6 24.Bg4 Kf7 25.f4 Bc8 26.Bf3 Nb8 27.Kg2 Nd7 28.e4 Nf8 29.e5 f5 30.g4 fg4 31.Bg4 Qd8 32.Kg3 h5 33.Be2 Qe8 34.d4 Ra7? (34...Ke7 35.Kg2+/-) 35.Kh3?? (better is 35.Nc4 bc4 36.Ra7 Kg8 37.Kf2+–) 35...Kg8 36.Rg1 Rg7 37.Qg3 g5 38.fg5 Ng6 39.Rf1 Ne7 40.Rf6 Nf5 41.Qf4 Bd7 42.Kg2 h4 43.Bg4 h3 44.Kh3 Rh7 45.Kg2 Nh4 46.Kg3 Ng6 47.Qf2 Nh4 48.h3 Nf5 49.Kf4 Nh4 50.Qg3 Nf5 51.Bf5 ef5 52.Rh6 Qf8 53.Nb7 Rh6 54.gh6 Kh7 55.h4 Qh6 56.Qg5 Qf8 57.Nd6 Be6 58.h5 Bd7 1–0. Nemeth,Laszlo1 (1975) – Varga,Tibor (2025), HUN–chT2 Erkel, 2006.

6.Be2 0-0 7.0-0 c6 8.a4 Nbd7 (8...dc4 9.Bc4 Nbd7 10.d4+=) 9.d3 (9.d4 dc4 10.Bc4 Nd5+=) 9...Qc7 (9...dc4 10.dc4 Qe7 11.Nbd2=) 10.cd5 (10.Nbd2 e5+=) 10...ed5 11.Nbd2 Re8 12.Nb3 Nf8 (12...Qd6 13.Qd2+=) 13.Rc1 (13.b5 Bg4+=) 13...Bg4= 14.b5 (14.Nfd4 Be2 15.Qe2 N8d7+=) 14...Bf3 15.Bf3 Ng4 16.Bg4 Bb2 17.Rc2 Be5 18.g3 Qb6 (18...Bd6 19.bc6 bc6 20.d4+=) 19.d4 Bd6 20.Qd3 Ne6 21.bc6 bc6 22.Rfc1 Rac8 23.Nc5 (23.a5 Qb7+–) 23...Bc5 (23...f5 24.Ne6 fg4 25.Nc5+–) 24.Be6+– (worse 24.dc5 Qb4 25.Be6 fe6=+) 24...Re6 25.Rc5 (25.dc5?! Qa5=+) +–. Wiezer,Siegfried – Hengst,Hansi, corr, 1974.

6.Be2 0-0 7.0-0 c6 8.cd5 ed5 9.Qb3 (9.Nc3 Qd6+=) 9...a5= 10.b5 c5 (10...a4 11.Qa3=) 11.d3 (11.Rc1 b6=) 11...b6 12.a4 (12.Nc3 Re8=) 12...Be6 (12...Re8 13.Nbd2=) 13.Ng5 Qe7 14.Bf3 (14.Ne6 Qe6 15.Nd2 Nbd7+=) 14...h6 (14...Nbd7!?=) 15.Ne6+= fe6 16.d4 Nbd7 17.Qc2 Rfc8 Black plans c4 (17...Qf7!?+=) 18.Qg6+/- Qf7 (18...cd4 19.ed4 Qb4 20.Bc1+/-) 19.Qg3 c4 (better is 19...cd4!? 20.ed4 Nh5 21.Bh5 Qh5+–) 20.Nc3+– Kh8 21.e4 Rg8 (21...Re8 22.Qh4 Nf8 23.Rac1+–) 22.Qf4 Raf8 23.ed5 ed5? (23...Nd5 24.Qf7 Rf7 25.Bd5 ed5 26.Nd5 Rd8+–) 24.Nd5! Qg6 (24...Nd5 25.Qf7 Double attack (25.Qf7 Decoy)) 25.Ne7 Qc2 (25...Qf7 26.Rfe1 Rd8 27.Ng8 Qg8 28.Re7+–) 26.Rfc1 (better is 26.Rac1 Qh7 27.Qc7+–) 26...Qb2 (26...Qh7 27.Qg3 Qd3+–) 27.Ng6 (27.Ng8 Ng8 (worse is 27...Rg8 28.Rab1 Qa2 29.Qe3+/-; worse is 27...Kg8 28.Rab1 Qa2 29.Qc7+/-) 28.Qg3 Qd4+=) 27...Kh7 28.Qf5 Rf7 (28...Qf2 29.Kh1 Qg2 30.Bg2 Ne5 31.Ne5 Kh8 32.Ng6 Kh7 33.Nf8 Kh8 34.Qh7 Nh7 35.Ng6) 29.Ne5 (29.Ne5 Kh8 30.Nf7) 1–0. DEFFM – jangazy, freechess.org, 2018.

5.c4 Be6

6.cd5 Bd5 7.Nc3 0-0 8.d4=.

6.cd5 Bd5 7.Nc3 a6 8.Nd5+= Qd5 9.Qc2 Nc6 10.Bc4 Qd6 (10...Qd7 11.b5 ab5 12.Bb5+=) 11.b5 ab5 (11...Nb4 12.Qb3 ab5 13.Bf7 Kf8 14.d4+/-) 12.Bb5+/- 0-0 13.Bc6 Qc6 (13...bc6 14.Be5 Qd5 15.d4+= (15.Bc7? Ne8 16.Be5 Be5 17.Ne5 Qe5–+)) 14.Qc6 bc6 15.Ke2 Ra6 (15...Rfb8 16.Be5+/-) 16.Rhc1 Rfa8 17.a3 Nd5 (17...Ne4 18.Bg7 Kg7 19.d3+=) 18.Ne5+/- e6 (18...Be5 19.Be5 f6 20.Bg3+/-) 19.d4 Be5 20.de5 Kg7 (20...g5 21.Rc2+/-) 21.Rc2 (21.Kf3 g5+/-) 21...Rb8 22.Bd4 Rb3 23.a4 Rb4 24.a5 Rb5 25.Rc5 g5 26.Kd2 Kg6 27.f3 Rc5 28.Bc5 Nb6 29.Kd3 Nd7 30.Bd4 Kf5 31.g4 Kg6 32.f4 Nb6 33.ab6 Ra1 34.Ba1 cb6 35.Kc4 h5 36.h3 hg4 37.hg4 gf4 38.ef4 Kg7 39.Bd4 c5 40.Bc3 (40...Kf8 41.Kb5+–) 1–0. pierre (2295) – Biskopen (1980), ChessWorld.net, 2005.

6.cd5 Bd5 7.Nc3 Nc6 8.Nd5+= Qd5 9.a3 0-0 10.Rc1 Rad8 (10...a6 11.d4+=) 11.Bc4 (11.b5 Na5+/-) 11...Qd7 (11...Qd6 12.d4+=) 12.0-0 (12.Bb5 a5+/-) 12...a5 (12...a6 13.Qc2+/-) 13.b5+/- Na7 14.a4 c6 15.bc6 Nc6 16.Bb5 Ne4 (16...Rc8!?+=) 17.Bg7+/- Kg7 18.Nd4 Nd4?? (better is 18...Rc8 19.Bc6 bc6+/-) 19.Bd7+– Rd7 20.ed4 Rd4 21.Qc2 (better is 21.Rc7+–) 21...Rd2 (21...Nd2 22.Rfe1 e6+–) 22.Qe4 e6 (22...Rd7 23.Qe5 f6 24.Qa5+–) 23.Qf3 (23.Qe5 Kg8+–) 23...Rd7 (23...Rd4 24.Qc3 e5 25.Qa5+–) 24.Rfd1 Re7 25.g3 (25.Qc3 f6+–) 25...h6 (25...f6 26.Rc5 b6 27.Rc6+–) 26.Rc2 (26.Qc3 f6+–) 26...Rb8 (26...f6 27.Qe3+–) 27.Rcd2 (27.Qc3 e5+–) 27...b6 (27...Rc8 28.Rd7 Rc7 29.Rc7 Rc7 30.Qe3+–) 28.Qe3 (28.Rd7 Rd7 29.Rd7 Rf8+–) 28...Rbb7 29.Rd6 (better is 29.Rb1 Ra7+–) 29...Rec7 (29...b5 30.Qd4 f6 31.ab5 Rb5 32.Re6+–) 30.Rd8 (30.Qe5 f6 31.Qe6 Rf7+–) 30...Re7 (30...Rc5 31.Rh8 h5 32.Qh6 Kf6 33.Qf4 Rf5 34.Qd4 Re5 35.Re1 Rd7 36.Qe5 Ke7 37.Qg5 f6 38.Rh7 Kd8 39.Qf6 Kc7 40.Qe5 Kc8 41.Rc1 Kb7 42.Rd7 Ka6 43.Qb5) 31.Ra8 (31.Rh8 Red7 32.Qe5 f6 33.Rd7 Rd7 34.Qb8 Rd1 35.Kg2 Rg1 36.Kg1 b5 37.Qf8) 31...Rec7 (31...g5+–) 32.Rdd8 (32.Qd4 e5 33.Qe5 f6 34.Qe8 Rb8 35.Qd7 Rd7 36.Rd7 Kf8 37.Rb8) 32...Rc5+– 33.Rg8 Kf6 34.Qf3 Ke7 35.Qb7 Kf6 36.Raf8 Ke5 37.Qf7 (37.Qb6 Rc1 38.Kg2 Rc4 39.Rf7 Rd4 40.Qc5 Rd5 41.Qc3 Rd4 42.Rd8 Ke4 43.Qd4) 37...Rc1 38.Kg2 Rc4 (38...Kd5 39.Qd7 Ke5 40.Rf4 Rc4 41.Qg7 Kd5 42.Rd8 Kc5 43.Qe7 Kc6 44.Rc4) 39.Rg6 (39.Qf6 Kd6 40.Rd8 Kc6 41.Qe6 Kb7 42.Rb8 Kc7 43.Rgc8) 39...Ra4 (39...Kd4 40.Qe6 Kc3 41.Rf3 Kb2 42.Qc4 b5 43.Rb3 Ka1 44.Qc3 Ka2 45.Qb2) 40.Qe6 (40.Rd8 b5 41.Re6) 40...Kd4 41.Rg4 (41.Rg4 Kc3 42.Rc8 Rc4 43.Rcc4 Kb2 44.Qb6 Ka3 45.Ra4; 41.Rc8 Rb4 42.Rg4 Kd3 43.Qe3) 1–0. zabazaba (1640) – vanmar, gameknot.com, 2013.

5.c4 Bf5

6.Nc3 Nc6 7.a3 (7.Nd5 Nd5 8.Bg7 Ndb4 9.Rc1-/+ (9.Bh8? Nc2 10.Qc2 Bc2–+)) 7...a6 (7...0-0 8.d4+=) 8.Be2 (8.Nd5!? Qd6 9.Nf6 ef6 10.Be2+/-) 8...e6 (8...d4 9.Nd4 Nd4 10.ed4 Qd4 11.d3+=) 9.0-0 0-0 10.d3 (10.d4 dc4 11.Bc4 Ne4=) 10...d4 (10...dc4 11.dc4 Ne4 12.Qb3=) 11.Na4= b5 (11...de3 12.fe3 Bh6 13.e4 Be3 14.Kh1=) 12.e4 Bg4 13.Nc5 (13.cb5 ab5 14.Nc5=) 13...e5 (13...bc4 14.dc4 Bf3 15.Bf3= (worse is 15.gf3 Nh5–+)) 14.Qc2 (14.Nd4 ed4 15.Bg4 Ng4 16.Qg4 Ne5+=) 14...Bf3 (14...Qb8 15.Rab1=) 15.Bf3+= (worse is 15.gf3 Nh5+=) 15...a5? (better is 15...Qb8+=) 16.cb5+– Ne7 (16...Na7 17.Nb7 Qd7 18.Na5 Qb5 19.h4+–) 17.ba5 (better is 17.Nb7 Qd7 18.Na5 Qb5 19.Qc7+–) 17...Ra5? (17...c6 18.b6 Ra5+–) 18.Nb7 Qa8 19.Na5 Qa5 20.a4 Re8 21.Qc5 (better is 21.Rfc1 c6 22.Qc5+–) 21...Bf8 (21...Nd7 22.Qc4 Nc8+–) 22.Qe5 Qb6 (22...Bg7 23.Qd4 c5 24.Qc3+–) 23.Bd4 Qd6 (23...Nc6 24.bc6 Re5 25.Bb6 cb6+–) 24.Qf6 Qf6 25.Bf6 c6 26.b6 Rb8 27.a5 Nc8 28.d4 (better is 28.Rfc1 c5+–) 28...Be7 29.Be7 Ne7 30.Rfc1 (30.a6 Nc8 31.a7 Na7 32.ba7 Re8+–) 30...f5 31.e5 (31.a6 Nc8 32.a7 Na7 33.ba7 Ra8 34.e5 c5 35.Ba8 Kh8 36.Bf3 Kg8 37.a8Q Kg7 38.Ra7 Kh6 39.Qd8 cd4 40.Qh4) 31...Kf7 32.Bc6 (better is 32.a6 h6 33.a7 Rg8+–) 32...Nc6 33.Rc6 Ke8 34.Rac1 Kd7 35.Rc7 Ke6 36.f3 Rd8 37.b7 Rb8 (37...Kd5 38.Rc8 f4 39.Rd8 Ke6 40.Rd6 Kf5 41.h4 h6 42.Rf6) 38.R1c6 Kd5 39.Rd6 1–0. Dos Anjos,D Ferreira – De Carvalho,T Ferreira M (1770), Curitiba BRA, Terzian Mem, 2014.

6.cd5 Qd5 7.Nc3 Qd8 8.Nd4 Bg4 9.Be2 Be2 10.Qe2 c6 11.0-0 0-0 12.f4 Qd6 13.a3 e5 (13...a5 14.b5=) 14.fe5+= Qe5 15.Nf3 Qe7 16.d4 Ne4 17.Ne4 Qe4 18.Nd2 (18.Ne5 Qh4+=) 18...Qd5= 19.Kh1 Qd6 20.Nc4 Qe7 21.e4 Nd7 22.Rae1 Nb6 23.Nb6 ab6 24.e5 Rad8 25.Qc4 Rd5 26.Qb3 Rfd8 27.Re3 R8d7 28.Rfe1 (28.Ref3 Qe6 29.Qa4 Qe8+=) 28...Qe6= 29.Qc2 Re7 30.Qc3 Qd7 31.Rf1 (31.Re4 f6=) 31...Qc7 (31...c5 32.Re4=+) 32.Qb3 Qd8 33.Ref3 Red7 34.Qe3 Qe8 35.Qf2 c5 36.bc5 (36.Rf4!?=) 36...bc5-/+ 37.Rd1? (better 37.Rf4!?-/+) 37...cd4 38.Bd4? (38.Rc1 b5-+) 38...Be5 (38...Qe5! 39.Re3 Qd6 40.Re8 Bf8 41.Kg1-+) 39.Rfd3 Bd4 (better 39...Qc8!? 40.Be5 Rd3-+) 40.Rd4 Rd4 41.Rd4 Rd4 42.Qd4 Qe1 43.Qg1 Qg1 44.Kg1 f5 45.Kf2 Kf7 46.Ke3 Ke6 47.Kf4 Kf6 48.h3 g5 49.Kf3 Ke5 50.g3 (50.Ke3-+) 50...Kd4 51.h4 h6 0-1. Tamrazyan,Gohar (1820) - Vuong,Quynh Anh (1745), World Youth Girl U14, 2018. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.c4)

5.c4 Bg4

6.Qb3 0-0 7.d4 c6 8.Nbd2 Nbd7 9.Be2 Bf3 10.Nf3 Re8 11.0-0 Nb6 12.Nd2 dc4 13.Nc4 Nc4 14.Bc4 e6 15.a4 a6 16.b5 ab5 17.ab5 Qb6 18.Rfb1 Ne4 (better is 18...cb5 19.Bb5 Rec8+=) 19.Ba3?? (better is 19.Be6 fe6 20.Ra8 Ra8 21.Qe6 Kh8 22.Qe4 Qb5 23.Ba3+/-) 19...Nd2-/+ 20.Qd3 Nb1 (20...Nc4?! 21.Qc4 e5 22.Qd3=) 21.Rb1 cb5 22.Bb5 Qa5?? (better is 22...Rec8-/+) 23.Be8 Qa3 24.Qa3 Ra3 25.h3 Ra7 26.Bd7 Bf8 27.Bc8 Bd6 28.Bb7 Kg7 29.g3 h5 30.Kg2 Kf6 31.Rb2 Be7 32.f4 Kg7 33.Kf3 f5 (33...h4 34.g4+/-) 34.g4 (34.Bc8!? Kf7 35.Rb6 Bd8 36.Be6 Ke7+–) 34...hg4 35.hg4 Kf6 36.g5 Kf7 37.Rb3 Bd6 38.Bc6 Ra1 39.Rb7 Kf8 40.Bd7 Rf1 41.Ke2 Rh1 42.Be6 Rh2 43.Kd3 1–0. carocan (1700) – krzys1258 (1630), kurnik, 2011.

6.cd5 0-0 7.Bf6 Bf6 8.Nc3 Bc3 (8...c6!?=) 9.dc3+/- Bf3 (9...Nd7 10.h3 Bf3 11.Qf3+/-) 10.Qf3 Nd7 (10...a5 11.b5+/-) 11.Be2 Ne5 (11...a5 12.b5+/-) 12.Qe4 Qd6 13.0-0 f5 (13...Rfd8 14.c4+/-) 14.Qd4 b6 (14...Rfd8 15.Rfd1+–) 15.Rfd1 (15.b5 Rfe8+–) 15...c5 (15...e6 16.b5+–) 16.dc6! Qd4 17.cd4 Nc6 18.Bf3 Rac8 19.Rac1 Nb4 20.Rc8 Rc8 21.a3 Na6 22.Bb7 Rc3 23.Ba6 Ra3 24.Bc4 Kg7 25.Rc1 a6 26.Kf1 b5 27.Bd5 b4 28.Ke2 b3? 29.Rb1 Ra2 30.Ke1 a5 31.Bb3 Ra3 32.Kd2 a4 33.Bc4 1–0. pcmvr (2775) – gbsrao (2220), net–chess.com, 2008.

6.cd5 Qd5 7.Nc3 Qd8 8.d4=.

6.h3 Be6 7.Qc2 c6 8.Be2 0-0 9.0-0 dc4 10.Bc4 Bd5 11.Bd5 Nd5 12.Bg7 Kg7 13.e4 Nf4 14.d4 a5 15.Qd2 Qc7 16.Ne5 Ne6 17.Qb2 f6 18.Nf3 Qb6 19.Nbd2 Rd8 20.Nb3 Qb4 21.Qe2 a4 22.Rab1? (better is 22.Nc5 Nc5 23.Rfb1-/+) 22...ab3–+ 23.Rb3 Nd4 24.Nd4 (24.Rb4?? Ne2 25.Kh2 b5–+) 24...Qd4 (24...Rd4?! 25.Rb4 Rb4 26.e5+=) 25.Rb7 Ra7 26.Rbb1 Rad7 27.Rbc1 Qd3 28.Qg4 Rd4 29.Rfe1 Qa3 30.Qe6 Qd6 31.Qb3 Nd7 32.Qc3 Ne5 33.Rb1 Rd2 34.f4 Nf7 35.e5 Qd4 36.Qd4 R8d4 (worse is 36...R2d4 37.e6 Nd6 38.g3–+) 37.ef6 ef6 38.Rb6 Rd1 39.Rd1 Rd1 40.Kh2 Ra1 41.Rc6 Ra2 42.Rc3 h5 43.Kg3 Nd6 44.Rc7 Kh6 45.Kf3 Ra3 46.Ke2 Rg3 47.Kf2 Ne4 48.Kf1 Rc3 49.Re7 f5 50.Rd7 Rc1 51.Ke2 Rc2 52.Kf1 Rf2 53.Kg1 Rf4 54.Rd4 Ng3 55.Rd8 Ne2 56.Kh2–+ h4 57.Re8 Rf2 58.Kh1 Kg5 59.Rg8 Nf4 60.Rf8 Ng2 61.Kg1 Rc2 62.Rf7 Kf4 63.Rb7 Ne3 64.Rb3 Kf3 65.Rb1 Kg3 66.Re1 f4 67.Kh1 f3 68.Rb1 Rh2 (68...Rh2 69.Kg1 f2) 0–1. Nemeth,Laszlo (2060) – Gal,Janos (2040), HUN–chT2 Erkel, 2003.

6.h3 Bf5 7.Nc3 0-0 8.d4 c6 9.Be2 Nbd7 10.0-0 Qc7 11.Rc1 Qd8 12.g4 Be6 13.Ng5 h6 14.Ne6 fe6 15.Qc2 Qe8 16.Bd3 Kh7 17.Ne2 Ne4 18.f3 Ng5 19.Nf4 Rf4 20.ef4 Nh3 21.Kh1 Nf4 22.Rce1 Qf7 23.Rf2 Nd3 24.Qd3 Rf8 25.Qe2 e5 26.de5 e6 27.cd5 cd5 28.Kg2 Nb6 29.Bd4 Nc4 30.f4 Qe7 31.Bc5 Qf7 32.Bf8 Bf8 33.Rb1 b5 34.Rb3 Be7 35.a3 Bh4 36.Rf1 Qb7 37.Kh3 Be7 38.Rbf3 Qb8 39.Qd3 Kg7 40.Qc2 a6 41.f5 ef5 42.gf5 Bg5 43.f6 Kf7 44.e6 Kf8 1–0. Orlova,Lubov – Zakhvatova,Roufina, Rowy, 2000.

6.h3 Bf5 7.Nc3 Ne4 8.cd5 0-0 9.Qb3 Nc3 10.dc3 Be4 11.0-0-0 Nd7 12.Ng5 Bf5 13.g4 h6 14.Ne6 Be6 15.de6 c5 16.Rd7 Qe8 17.bc5 fe6 18.Qe6 Kh8 19.Re7 Qa4 20.Qg6 Rg8 21.Bd3 1–0. Bonetti,Shane – Legas, ICC, 2002.

6.h3 Bf5 7.Be2 Bb1 (7...dc4 8.Bc4 Nbd7 9.g4 Bb1 10.Rb1=) 8.Qb1 0-0 9.0-0 c6 10.a3 Nbd7 11.cd5 cd5 12.b5 Nb6 13.a4 Nc4 14.Bc4 (14.Bd4 e5 15.Be5 Ne5 16.Ne5 Ne4+–) 14...dc4= 15.Qc2 Rc8 16.Rac1 Qd5 17.Qb1 (17.Bd4 a6 18.d3 ab5 19.ab5 cd3 20.Qd3 Ne4=) 17...Rfe8 (17...Ne4 18.Bg7 Kg7 19.Rc2=+) 18.Rfd1= e5 (18...h6=) 19.Qa1 (better 19.d3!?+=) 19...Nd7=+ 20.Rc2 (20.Qa2 e4 21.Ne1 Bb2 22.Qb2 Red8=+) 20...Nc5 21.Ne1 Nb3 Attacks the backward pawn on d2 (21...a6 22.Qa2 ab5 23.ab5=+) 22.Qa2 (22.Qb1 Red8=+) 22...Red8 The pressure on the backward pawn d2 grows 23.Bc3 (23.d3 e4 24.Bg7 Kg7=+) 23...Nc5 (23...a6!?=+) 24.Bb4= Nd3 (24...Ne6 25.Rdc1=) 25.Nd3+= Qd3 26.Rc3 (26.Rdc1 Bf8 27.Bf8 Kf8 28.Rc4 Rc4 29.Rc4 Qd2 30.Qd2 Rd2 31.Rc8 Ke7+–) 26...Qd5 (26...Qe2!? 27.Rcc1 e4=+) 27.d3 (27.Rdc1 e4 28.Rc4 h6+=) 27...e4= 28.d4 h6 (better 28...Rd7!?=) 29.Rdc1+– Rc7 (29...Qd7 30.Rc4 Rc4 31.Qc4+–) 30.Rc4 Rdc8 31.Qe2?? (31.Rc7 Qa2 32.Rc8 Kh7 33.R1c7 Qa4 34.Rf7 Qb4 35.Rcc7+–) 31...Rc4–+ (worse 31...Qc4 32.Rc4 Rc4 33.Bc5 Rc1 34.Kh2 Be5 35.g3+–) 32.Rc4 Rc4 33.Bc5 (33.Qb2 a6 34.ba6 ba6–+) 33…b6 (33...b6 34.Be7 Ra4–+) 0–1. retiponziani (1855) – darthplutonius (1750), ChessWorld.net, 2014.

5.d3 0-0

6.Be2 b6 7.Nbd2 Bb7 8.0-0 Nbd7 9.c4 c5 10.bc5 Nc5 11.cd5 Qd5 12.e4 Qd7 13.Rb1 Nd3 14.Bf6 Bf6 15.Nb3 Rad8 16.Bd3 Qd3 17.Qd3 Rd3 18.Rfe1 Bc3 19.Re2 Ba6 20.Kf1 Rf3 21.gf3 Be2 22.Ke2 e5 23.Rc1 Ba5 24.Rc7 Rd8 25.Ra7 Rc8 26.Na5 ba5 27.Ra5 Rc2 28.Ke3 Rc3 29.Ke2 Rc2 30.Ke3 Rc3 31.Ke2 Rc2 ½–½. Chess4Win – andreascha94 (1610), lichess.org, 2019.

6.Be2 c5 7.b5 b6 8.0-0 Nbd7 9.a4 Bb7 10.Nbd2 Re8 11.c4 e5 12.cd5 Nd5 13.e4 Nf4 14.Nc4 Nf8 15.Qd2 f6 16.Bd1 Nd3 17.Bb3 Kh8 18.Bc3 Be4 19.Qe3 Bf5 20.Rad1 e4 21.Ne1 Qc7 22.Nd3 ed3 23.Qf3 Rad8 24.Ne3 Be4 25.Qh3 f5 26.Bg7 Qg7 27.f3 Qd4 28.fe4 Qe3 29.Qe3 Re4 30.Qh6 c4 31.Ba2 Ne6 32.Rd3 cd3 33.Be6 d2 34.Bb3 Re1 35.Kf2 Rf1 36.Kf1 d1Q 37.Bd1 Rd1 38.Ke2 Rd8 39.Qg5 Rf8 40.Qe7 Kg8 41.Qa7 Re8 42.Kf3 Re4 43.Qb6 Ra4 44.Qe6 Kg7 45.b6 Ra3 46.Kf4 Ra4 47.Ke3 Ra3 48.Kd4 Ra4 49.Kc3 Ra3 50.Kc2 Ra6 51.Qd7 1–0. Adjailton (1815) – Terry2020b (1775), lichess.org, 2020.

6.Be2 c5 7.bc5 Qa5 8.Nbd2 Qc5 9.0-0 Nc6 10.a4 Bf5 11.Ra2 (11.c4 Rfc8=) 11...Rac8 12.Qb1 Qd6 13.c4 Qd7 14.cd5 (14.Bf6!? Bf6 15.cd5+/-) 14...Nd5= (14...Qd5? 15.e4 Qd7 16.ef5 Qf5 17.Bf6 Qf6 18.Qb7+–) 15.Bg7 Kg7 16.e4 Nf4+= 17.Nc4 Be6 18.Rc1 Rfd8 19.Bf1 f6 20.Rd2 Nd4 21.Nd4 Qd4 22.Rcd1 Bg4 23.Rc1 Be6 24.Rcd1 Bg4 25.Rc1= (25.Qb7 Bd1 26.g3 Rc4 27.dc4 Qd2 28.Qe7 Kh6 29.gf4 Qf4–+) ½–½. Beqo,Nick – Davies,Noam, British Columbia op, 2003.

6.Be2 Nbd7 7.Nbd2 c5 8.c3 cb4 9.cb4 b6 10.Rc1 Bb7 11.0-0 Ng4 12.Bg7 Kg7 13.Qb3 e6 14.h3 Ngf6 15.Qb2 Kg8 16.Ne5 Ne5 17.Qe5 Nd7 18.Qc7 Rb8 19.Nf3 Ba8 20.Qa7 b5 21.Rc7 Nf6 22.Ne5 Qd6 23.Nd7 Nd7 24.Rd7 Qb4 25.d4 Qd2 26.Bd1 b4 27.Bb3 Bc6 28.Rc7 Bb5 29.Rd1 Qb2 30.Rb7 Rb7 31.Qb7 Bc4 32.Qb4 Bb3 33.Qb3 Qe2 34.Rb1 h5 35.a4 g5 36.Qb5 Qb5 37.ab5 Rb8 38.b6 Kg7 39.b7 Kg6 40.g4 hg4 41.hg4 f5 42.gf5 Kf5 43.Kg2 g4 44.Kg3 e5 45.de5 Ke5 46.Rb4 Kd6 47.Rg4 Rb7 48.Rg6 Kc5 49.f4 Rb3 50.Kf2 Rb2 51.Kf3 Rb3 52.Rg5 Kc4 53.Rg8 d4 54.Rc8 Kd5 55.Rd8 Kc5 56.Rd4 1–0. Phomopsis (1635) – metijuzsol (1615), lichess.org, 2019.

6.Be2 e6 7.Nbd2 Nbd7 8.0-0 b5 (8...Qe7 9.a3=) 9.c4+= dc4 (9...bc4 10.dc4 Rb8 11.Qc2+=) 10.dc4 bc4 11.Nc4 a6 (11...Bb7 12.Qc1+=) 12.Nfe5 Ne5 13.Ne5 (13.Be5 Bb7+/-) 13...Bb7 14.Bf3 (14.a3 Qd6+=) 14...Qd1 15.Rad1 (15.Rfd1 Bf3 16.Nf3 Rfb8 17.Bf6 Bf6=) 15...Bf3= 16.Nf3 a5 (16...Rfb8 17.Bf6 Bf6 18.Rb1=) 17.b5+= a4 18.a3 (18.Be5!? Rfb8 19.Rb1+=) 18...Rab8 (18...Rfb8 19.Bf6 Bf6 20.Rd7-/+) 19.Nd4 (19.Bf6 Bf6 20.Rb1 Rfd8=) 19...Nd5 (19...c5!? 20.Nc6 Rb5-/+) 20.e4 (20.Rb1 e5 21.Nc6 Rb5 22.Be5 Rc5 23.Bg7 Kg7=) 20...Ne7 (20...Nf6 21.e5 Ng4 22.Rc1 Ne5 23.Rfd1+=) 21.Rb1 (21.Rc1 Rfd8 22.Rc4 c5+=) 21...Rb6 (21...Rfd8 22.e5 Rd5 23.f4+=) 22.Rfc1 (22.Ne2 Rb5 23.Bg7 Rb1 24.Bf8 Rf1 25.Kf1 Kf8=) 22...Rc8 (22...Rd8!? 23.Nc6 Nc6 24.Bg7 Kg7 25.bc6 Rb1 26.Rb1 Rd6+=) 23.Nc6= Nc6 24.Rc6?? (better is 24.Bg7 Rcb8 25.Bf6 Rb5 26.Rb5 Rb5 27.g4=) 24...Rb5–+ 25.Rc2 (25.Ra6 Rb2 26.Rb2 Bb2 27.Ra4 c5–+) 25...c5 (better is 25...Rcb8 26.Rc4 Rb2 27.Rb2 Bb2 28.Ra4 Ba3 29.g3–+) 26.f4 Rcb8 (26...Bd4 27.Bd4 Rb1 28.Kf2–+) 27.e5 f6! 28.Re2 (28.ef6 Bf6) 28...fe5 29.fe5 Kf7 (better is 29...h5–+) 30.Rf1 Ke7 (30...Ke8 31.Rff2–+) 31.Bc1 h6 (31...c4 32.Rc2 Rc8 33.Rf4–+) 32.Bf4 (32.Re4 Ra8-/+) 32...c4 (32...Rb3 33.Rc2 R8b5 34.Rf3–+) 33.Rc1 Rc8 (33...Rb1 34.Ree1 Rc1 35.Rc1–+) 34.Rec2 Be5 35.Bh6 (better is 35.Be5 Re5 36.Rc4 Re1 37.Re1 Rc4 38.Re3–+) 35...c3 36.Bg5 Ke8 (36...Kd6 37.h4–+) 37.Be3 (37.h4 Rb3 38.Re1 Rb2 39.Re5 Rc2 40.Re6 Kd7–+) 37...Rc7 38.h3 Rb3 39.Bb6 (39.Re1–+) 39...Rc6 (better is 39...Rb6 40.Re2 Bf4 41.Rf1–+) 40.Be3 Ra3 41.Rd1 (41.Kf2 Rb3–+) 41...Rd6 (41...Rb3!? 42.Bc1–+) 42.Rd6 Bd6 43.Bd4 Bb4 44.Kf2 Rb3 45.Ke3 a3 46.Kd3 Rb2 47.Bc3 (47.Rb2 cb2 48.Kc2 Kd7–+) 47...Bc3 (47...Rc2 48.Kc2 Bc3 49.Kc3 e5–+) 48.Kc3 (48.Rc3 a2 49.Rc8 Ke7 50.Ra8 Rg2 51.Ke4–+) 48...Rb8 (better is 48...Rc2 49.Kc2 e5–+) 49.Ra2-/+ Ra8 50.Kd4? (better is 50.Kb3-/+) 50...Ke7–+ 51.g4 (51.h4 Kd6–+) 51...Kf6 52.Ke4 (52.h4 Ra4 53.Kc5 Rg4 54.Ra3 Rh4–+) 52...Ra4 (52...Kg5 53.Ke5–+) 53.Ke3 (53.Kf3 g5–+) 53...Kg5 54.Kf3 Kh4 55.Kg2 e5 56.Kh2 e4 57.Kg2 e3 58.Kf3 Kh3 59.g5 Kh4 60.Ke3 Kg5 61.Kd3 Kf4 62.Kc3 (62.Rf2 Kg3 63.Ra2 Kf3–+) 62...g5 63.Kb3 (63.Kd2 g4–+) 63...Ra8 64.Kb4 (64.Kc2 g4 65.Kd2 g3–+) 64...g4 0–1. Hilbert,Stephan J – Archip,Laurentiu, FICGS, 2014.

6.Be2 Re8 7.Nbd2 a5 8.b5 a4 9.a3 Bd7 10.c4 dc4 11.dc4 c6 12.bc6 Bc6 13.0-0 Qc7 14.Be5 Qd7 15.Qc2 Ng4 16.Bg7 Kg7 17.h3 Nf6 18.Qc3 Bf3 19.Bf3 Nc6 20.Ne4 e5 21.Nc5 Qc7 22.Rfb1 b6 23.Nd3 e4 24.Nf4 ef3 25.Nd5 Qe5 26.Qe5 Ne5 27.Nc7 fg2 28.Ne8 Re8 29.Rb6 Nc4 30.Rb4 Nd2 31.Ra4 Nfe4 32.Kg2 Rc8 33.Rd4 Rc2 34.a4 Nf2 35.Kf2 Nb3 36.Kf3 Na1 37.Rb4 Ra2 38.e4 Nc2 39.Rc4 Na3 40.Rc8 Nb1 41.Ra8 Nd2 42.Kf4 Nc4 43.e5 Nb6 44.Ra7 Ra4 45.Ra4 Na4 46.Ke4 Nb6 47.h4 Nc4 48.Kd5 Nd2 49.Kd6 Nf3 50.e6 fe6 51.Ke6 Nh4 52.Ke5 Ng2 53.Ke4 Kf6 54.Kf3 Ne1 55.Kf2 Nd3 56.Kg3 Ne5 57.Kg2 Kf5 58.Kg1 Kf4 59.Kg2 h5 60.Kg1 Kf3 61.Kh2 Ng4 62.Kg1 g5 63.Kh1 h4 64.Kg1 Kg3 65.Kh1 Kh3 66.Kg1 Ne3 67.Kh1 g4 68.Kg1 g3 69.Kh1 Kg4 70.Kg1 h3 71.Kh1 Kf3 72.Kg1 Nd1 73.Kh1 Ke2 74.Kg1 g2 75.Kh2 Kf1 76.Kh3 g1Q 77.Kh4 Qg8 78.Kh3 Ne3 79.Kh4 Qg4 0–1. Adjailton (1865) – Brunomarcal (1620), lichess.org, 2020.

6.Be2 Bg4

7.0-0 Nbd7 8.Nbd2 c5 9.bc5 Nc5 10.Nd4 Be2 11.Qe2 Na4 12.Rab1 e5 13.N4f3 e4 14.Nd4 ed3 15.cd3 Nb2 16.Rb2 Rb8 17.Rfb1 Qc7 18.N2f3 Nd7 19.Rc2 Qa5 20.Rbc1 b6? 21.g3?? Nc5? 22.Nc6+– Qa6 23.Nb8 Rb8 24.Kf1 Re8 25.d4 Qe2 26.Ke2 Bf8? 27.dc5 Bc5 28.Rc5 bc5 29.Rc5 1–0. bratek55 (1695) – tulena, kurnik, 2011.

7.0-0 e6 8.Nbd2 Nbd7 9.c4 c6 10.Rc1 Rc8 11.Nd4 Be2 12.Qe2 Qe7 13.a3 Nb6 14.c5 Nbd7 15.f4 e5 16.fe5 Ne5 17.N2f3 Nf3 18.Rf3 Nd7 19.Rcf1 Bd4 20.Bd4 Rce8 21.Bb2 Ne5 22.Rg3 f5 23.h3 Rf7 24.Be5 Qe5 25.Qd2?? Rfe7 26.Kf2?? Qf6?? 27.Rf3 Qh4 28.Kg1 Qh6 29.Kf2 Kh8 30.g4 Qh4 31.Kg2 Qg5 32.Rg3 Re3 33.Re3 Qe3 34.Qe3 Re3 35.Rf3 Rf3–+ 36.Kf3 fg4 37.Kg4 Kg7 38.Kg5 h6 39.Kf4 Kf6 40.d4 Ke6 41.a4 a6 42.h4 Kf6 43.Kg4 g5 44.hg5 hg5 45.Kf3 Kf5 46.Kg3 g4 47.Kf2 Kf4 48.b5 cb5 49.ab5 ab5 50.Ke2 g3 51.Kf1 Kf3 52.Kg1 g2 53.Kh2 Kf2 54.Kh3 g1Q 55.Kh4 b4 56.Kh5 b3 57.Kh6 b2 58.Kh7 b1Q 59.Kh8 Qb3 60.Kh7 Qh3 0–1. bratek55 (1730) – trzyniec, kurnik, 2011.

7.Nbd2 b6 8.c4 dc4 9.Nc4 c5 10.bc5 bc5 11.Rb1 Nc6 12.Nfe5 Be2 13.Qe2 Ne5 14.Ne5 Nd5 15.Nc6 Qc7 16.Bg7 Kg7 17.Qb2 Kg8 18.Ne5 Rab8 19.Qa1 Rb1 20.Qb1 Qe5 21.0-0 Rb8 22.Qc2 Rb2 23.Qa4 Ne3 24.fe3 Qe3 25.Kh1 Qd3 26.Qe8 Kg7 27.Qf7 Kh6 28.Qf8 Kh5 29.g4 Kg4 30.Qf4 Kh5 31.Qe5 Kh6 32.Qf4 g5 33.Qc1 Qe4 34.Kg1 Qg2 0–1. sunnyda – marjan964, kurnik, 2012.

7.Nbd2 c6 8.0-0 Nbd7 9.Rc1 Qc7 10.c4 e5 11.cd5 Nd5 12.a3 Qd6 13.Ne4 Qe7 14.h3 Bf3 15.Bf3 (worse is 15.gf3 f5 16.Nc3 N7b6+=) 15...N5f6 16.Nc5 Nc5 17.Rc5 e4 18.de4 Ne4 19.Bg7 Kg7 20.Be4 Qe4 21.Qf3 Qf3+= 22.gf3 Rad8 23.a4 Rd3 24.b5 cb5 25.ab5 Rfd8 26.Rc7 R8d7 27.Rfc1 a6 28.ba6 ba6 29.Kf1 a5 30.Ke2 a4 31.Rd7 Rd7 32.Ra1 Ra7 33.Ra3 f5 34.Kd3 Kf6 35.Kd4 Kg5 36.e4 fe4 37.fe4 Kf4 38.f3 Kg3 39.e5 Kh3 40.f4 Kg4 41.Ke4 g5 42.e6?? gf4–+ 43.Ke5 f3 44.Kf6 f2 45.Ra1 a3 46.e7 Re7! 47.Ke7 a2! 48.Kf6 Kg3?? 49.Kg5= Kg2 50.Ra2 Kg1 51.Rf2 Kf2 52.Kh6 Kf3 53.Kh7 ½–½. bratek55 (1640) – amator17, kurnik, 2011.

7.Nbd2 c6 8.0-0 Nbd7 9.c4 Bf3 10.Bf3 (worse is 10.gf3 e5+=) 10...e5 11.Qb3 Nb6 (11...Qe7 12.cd5 cd5 13.Rac1+=) 12.c5 (better is 12.Be5!? Ne4 13.de4 (13.Ne4?! Be5 14.cd5 Ba1 15.Ra1 Nd5=) 13...Be5 14.Rad1+/-) 12...Nbd7= 13.a4 Qe7 14.g3 a6 15.Bg2 Ne8 (15...a5!?=) 16.e4+= d4 17.Nc4 Kh8 18.f4 f6 19.fe5 fe5 20.Bh3 Nef6 21.Nd6 Ne8?? 22.Rf8 Bf8 23.Nb7 Ndf6? 24.Na5+– Qc7 25.Rf1 Rb8 26.Qe6 Bg7?? 27.Nc6+– a5 28.b5 Rc8 29.Qc8 Qc8 30.Bc8 Ng4 31.b6 Ne3 32.b7 1–0. bratek55 (1615) – amator17, kurnik, 2011.

7.Nbd2 Re8 8.0-0 Nc6 9.b5 Na5 10.h3 Bf3 11.Bf3 e5 12.a4 c5 13.bc6 Nc6 14.Rb1 b6 15.c4 d4 16.ed4 ed4 17.Bc6 Nd7 18.Ba8 Qa8 19.Nf3 Nc5 20.Bd4 Na4 21.Bg7 Kg7 22.Qa4 1–0. Phomopsis (1630) – basshead2000 (1660), lichess.org, 2020.

5.d3 Nbd7

6.Be2 c5 7.bc5 Nc5 8.0-0 0-0 9.Nbd2 a5 10.Nb3 Nb3 11.ab3 Bg4 12.h3 Be6 13.c4 dc4 14.bc4 Rc8 15.Nd4 Bd7 16.Bf3 Rc7 17.Qb3 a4 18.Qb6 Bc6 (18...e5!? 19.Nb5 Bb5 20.Be5 Nd7 21.Bc7 Nb6 22.Bd8 Rd8+/-) 19.Bc6 bc6 20.Rfb1 (20.Ra4!? Nd7 21.Qa5+/-) 20...Rc8 21.Qd8 Rfd8 22.Ra4 Rd7? 23.Rba1 Rb7 24.Bc3 c5 25.Nb5 h5 26.Ra7 Rcb8 27.Ra8 Kh7 28.g3 e6 29.Be5 Ra8 30.Ra8 Nd7 31.Bg7 Kg7 32.f4 e5 33.Kf2 ef4 34.gf4 Nf6 35.Kf3 Kh6 36.Rc8 g5 37.Rc5 gf4 38.ef4 h4 39.Rc6 Kg7 40.d4 Nh5 41.Kg4 Nf6 42.Kf5 Rd7 43.Rf6 Re7 44.Rc6 Re3 45.d5 Rh3 46.d6 Rd3 47.Ke4 Rd2 48.Ra6 h3 49.Ra1 h2 50.c5 Rg2 51.d7 Rg1 52.Rg1! hg1Q 53.d8Q Qg2 54.Ke5 Qe2 55.Kd5 Qd2?? 56.Nd4 Qf4 57.Qd6 (57.Qd6 Qd2 58.Kc6+–) 1–0. bratek55 – nebihu, kurnik, 2011.

6.Be2 c6 7.0-0 Qc7 8.Nbd2 e5 9.c4 e4? (better is 9...0-0!?=) 10.de4+– de4 11.Nd4 (better is 11.Ne4!? 0-0 12.Qd6+–) 11...Ne5 12.Qb3 Neg4 13.g3 h5 14.h3 h4 15.f4?? hg3?? 16.hg4+– Bg4 17.Bg4 Ng4 18.Kg2?? Bd4 19.Bd4 Rh2 20.Kg3 Rd2?? 21.Kg4+= 0-0-0 22.Rg1?? Rd3?? 23.Qa4?? R8d4–+ 24.ed4 Qd7 25.Kg5 Qe7 26.Kh6 Rh3 27.Kg7 f5 28.Kg6 Qh7 29.Kf6 Rh6 30.Ke5 Qe7 31.Kf5 Qe6 32.Kg5 Qg6 0–1. bratek55 – erceg (1685), kurnik, 2011.

5.d4 0-0

6.a4 Nbd7 7.Bd3 Ne4 (7...c6 8.a5=) 8.0-0 f5 (8...a5 9.b5=) 9.Nbd2 Ndf6 10.c4 e6 11.Ne5 Bd7 12.Ndf3 Be8 (12...dc4 13.Bc4 Nd5 14.b5+/-) 13.Ne1 (13.Ba3 dc4 14.Bc4 Nd5+/-) 13...Bh6 (13...Nd7 14.Nd7 Bd7 15.Qc2+=) 14.f4 (14.Qe2 Bg7+/-) 14...g5 15.Qc2 (15.fg5 Bg5 16.Qe2 dc4 17.Bc4 Nd5+=) 15...Kh8 (15...dc4 16.Bc4 Nd5 17.Qc1+=) 16.Bc1 (16.fg5 Bg5 17.Bc1 Nd7+/-) 16...Rg8 (16...gf4 17.Be4 (< 17.Rf4 Bf4 18.ef4 dc4 19.Qc4 b5–+) 17...de4 18.Qc3=) 17.Be2 (17.fg5!? Rg5 18.cd5 ed5 19.N1f3+/-) 17...gf4= 18.ef4 Qe7 (18...dc4 19.Qc4 Nd5 20.a5=) 19.c5 Nh5 (19...Bg7 20.N1f3+=) 20.Ra3 Qh4 21.Rh3?? (better is 21.N1d3+=) 21…Qh3–+ (22.b5 a6–+) 0–1. Balogh,Istvan (1745) – Eberth,Zoltan (2205), Sarospatar, 1992.

6.a4 Bf5 7.Be2=+.

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5 6.d4).

6.c4 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5).

6.Nbd2 Nbd7 7.c4 c6 8.Rc1 a5 9.a3 (9.b5 a4=) 9...ab4=+ 10.ab4 Ne8 (10...Nb6 11.Bd3=) 11.c5 (11.Bd3 dc4 12.Nc4 Nef6=) 11...Qc7 (11...b5 12.Ra1 Ra1 13.Ba1=) 12.Be2 e5 (12...b5 13.0-0=) 13.0-0 (13.de5!? Ne5 14.Be5 Be5 15.Ne5 Qe5 16.0-0+=) 13...e4= 14.Ne1 f5 15.Qb3 (15.b5 f4=) 15...Ndf6 (15...Nef6 16.b5=) 16.f3 Qe7 17.f4 (17.b5 Nc7=) 17...Nc7 18.Nc2 Bd7 (18...Be6 19.Ra1=) 19.Na3 (19.Ra1 Be6=) 19...Ng4 20.h3 Qh4?? (better is 20...Nf6=) 21.hg4+– fg4 22.Bg4 Bg4 23.Ne4 Ne6 24.Nd6 Qg3 25.Qc3 Be2 26.Rf2= Bg4 27.Rcf1 Bh6 28.Nc2+= Ng7 29.Qe1 Qh4 30.Rd2 Qe7 31.Qg3 Bf5 32.Ne1 Ra4 33.Qf3 Rb4= 34.g3 Ne8 35.Nf5= gf5 36.Nd3 Ra4 37.Ne5 Nf6 38.Rb1 Kh8 39.Rh2+= Qg7 40.Bc1 Ne4= fg4+= 42.Qg4 Qg4 43.Ng4 Rg8 44.Rg2 Bf8 45.Ne5 Rg2 46.Kg2 Ra2 47.Kf3 Rf2 48.Kg4 Rg2 49.Kf5 Rg7 50.Ba3 h5= 51.Bb4 h4 52.Ng6 Kg8 53.Nh4 Ng3 54.Ke6 Re7 55.Kf6 Re3 56.Nf5 Nf5 57.Kf5 Re4 58.Rg1 Kf7 59.Bc3 Bg7 60.Rd1 Bh6 61.Rf1+= Bg7 62.Rb1 Re7 63.Rd1 ½–½. Amor Alcaide,Manuel (2115) – Colom Andres,Xavier (2075), La Lira op Barcelona, 1995.

6.Nbd2 Nbd7 7.c4 c6 8.Rc1 dc4 9.Bc4 Nb6 10.Bd3=.

6.Nbd2 Bf5 7.c4=.

6.Bd3 c6 7.Nbd2 Nbd7 (7...a5 8.a3=) 8.c4 (8.0-0 Nb6=) 8...a5 (8...dc4 9.Nc4 Nb6 10.Na5=) 9.a3 (9.b5 dc4 10.Bc4 Nb6 11.bc6 Nc4 12.Nc4 bc6=) 9...ab4 10.ab4 Ra1 11.Qa1 dc4 12.Nc4 Nd5 13.Ba3 (13.Bc3 b5 14.Na5 c5+=) 13...b5+= 14.Ncd2 (14.Na5 c5+=) 14...e5 15.0-0 (worse is 15.Ne5 Ne5 16.de5 Ne3–+) 15...ed4 16.Nd4 Ne5 17.Be2 Qe7 Exerts pressure on the isolated pawn 18.Rc1 The backward pawn on c6 becomes a target (18.h3 Be6+=) 18...Bd7 (18...Bg4 19.Bf1 Ne3 20.Bb2 Nf1 21.Nf1-/+) 19.N2b3 (19.Qb2!?+=) 19...Ra8-/+ (19...Nb4 20.Qc3 c5 21.Qc5 Qc5 22.Nc5+/-) 20.Qb2 Nc4 21.Bc4 bc4 22.Rc4 Ne3! 23.Qe2?? (23.fe3 Bd4 Double attack (23...Bd4 Decoy)) 23...Ra3 (better is 23...Bd4 24.Bc1 Ra2–+) 24.Qe3-/+ Qd6 25.Qc1 (25.Qe1 Bf6-/+) 25...Ra8 (25...Ra2 26.Qb1 Ra8 27.Qc1-/+) 26.h3 (26.Nc6 Bb2 27.Qc2 Re8–+) 26...Re8 (26...Bf6 27.Qd2-/+) 27.Nf3 (27.Nc6 Bb2 28.Qd2 Qd2 29.Nd2 Re1 30.Kh2 Bc6 31.Rc6 Be5 32.g3 Re2+=) 27...Be6 (27...Re2 28.Nbd4 Ra2 29.g4+= (29.Nc6?? Ra1 30.Qa1 Ba1–+)) 28.Rc6+= Qb4 29.Nbd2 (29.Nc5 Bf5+=) 29...Ra8 (better is 29...Bf8-/+) 30.Kh2? (better is 30.Qc5 Qa4 31.Rb6-/+) 30...Qf4–+ 31.g3 Qf5 32.g4 Qd5 (better is 32...Qf4!? 33.Kg2 Bd5–+) 33.Qc5-/+ Qd7 (33...Bf8 34.Qd5 Bd5 35.Rc3-/+) 34.Rc7 (34.Ne4 h6+=) 34...Bf8-/+ (34...Bf8 35.Qe5 Qd3-/+) 0–1. Milin,Dragan (2065) – Djuric,Stefan (2400), Belgrade Premier League, 2016. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d5 5.Bb2 0-0)

6.Be2 a5 7.b5 c6 8.a4 cb5 9.Bb5 Nbd7 10.Nbd2 b6 11.0-0 Qc7 12.Rc1 Bb7 13.c4 dc4 14.Nc4 Bf3 (14...Qd8!?+/-) 15.Qf3+– (15.gf3?! Qb7+=) 15...Qd8 16.Bd7 (16.e4!? Ra7+–) 16...Nd7+/- 17.Rfd1 Qb8 18.Qe2 (18.Ba3 Qd8+/-) 18...Nf6 (18...b5!? 19.Nd2 ba4+=) 19.Ne5 Rd8? (better is 19...Qb7!?+/-) 20.Nc6+– (20.Nc6 Qd6 21.Nd8 Rd8 22.Rc4+–) 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com (3+0), 2013.

6.Be2 b6 7.0-0 Bb7 (7...Qd6 8.b5=) 8.c4= dc4 9.Bc4 Ne4 10.Nc3 Nd6 11.Be2 Nd7 12.Nb5 (12.Qd2!?=) 12...Nb5+= 13.Bb5 c6 (13...Nf6 14.Rc1+=) 14.Be2 c5 (14...a5 15.b5=) 15.b5 (15.Qa4 cb4 16.Qb4 Nf6+=) 15...e6 16.a4 (16.Qa4 Qc8=) 16...Qc7 17.Rc1 Rfd8 18.Qc2 a6 19.a5 (better is 19.ba6!? Ba6 20.Ba6 Ra6 21.Rfd1=) 19...ab5-/+ 20.ab6 Nb6 (20...Qc6 21.Rb1 c4 22.d5 Qd5 23.Bg7 Kg7 24.Qb2 Kg8 25.Qb5 Qb5 26.Rb5+=) 21.dc5= (worse is 21.Qc5 Qc5 22.Rc5 Na4 23.Rb5 Ba6-/+) 21...Bb2 22.Qb2 Na4 23.Qb4 (worse is 23.Qb5 Ba6 24.Qa4 Be2+=) 23...Rac8? (better is 23...Rdc8=) 24.c6+/- Bc6 25.Nd4 Qb6 (better is 25...Rd4 26.ed4 Qb7+/-) 26.Nc6 (26.Bb5?! Bb5 27.Rc8 Rc8 28.Qb5 Qb5 29.Nb5 Nb2=) 26...Rc6 27.Rc6 (27.Bb5?! Nc3 28.Rc3 Rc3 29.Qc3 Qb5=) 27...Qc6 28.Bb5 Rb8 29.Ba4 (29.Ba4 Qg2 30.Kg2 Rb4 31.Ra1+–; 29.Bc6?! Rb4 30.Rc1 Nb6=) 1–0. Saptarshi,Roy (2445) – Sardana,Rishi (2360), Barbera del Valles ESP, 2014. (=1.d4 d5 2.Nf3 Nf6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0)

6.Be2 Nc6 7.b5 (7.a3 a6=) 7...Nb8 (7...Na5 8.Nbd2=) 8.0-0 Nbd7 (8...c6 9.a4=) 9.Nbd2 (9.c4 dc4 10.Bc4 Nb6+=) 9...b6 (9...a6 10.a4+=) 10.c4 dc4 11.Bc4 Bb7 (11...a6 12.a4+/-) 12.a4 (12.Qc2 Rc8+=) 12...Ne4 (12...c5 13.Qe2+=) 13.Ne4+/- Be4 14.Nd2 Bb7 15.Be2 (15.Qc2 Rc8+/-) 15...Nf6 (15...c5 16.Rc1+=) 16.Bf3 Bf3 17.Nf3 (< 17.gf3 a6=) 17...Ne4 (17...a6 18.Qe2+=) 18.Qd3 (18.Qc2 Nd6+/-) 18...Nd6 (18...Qd5 19.Ba3+/-) 19.e4 e6 20.e5 (20.Ba3 Re8+/-) 20...Nb7 21.Rfd1 Re8 22.h3 Qd7 23.Ba3 Bf8 24.Bf8+/- Rf8 25.d5 ed5 26.Qd5 Qd5 27.Rd5 Nc5 28.a5 Rfd8 29.Rd8+= Rd8 30.ab6 ab6= 31.Kh2 Kg7 32.Ra7 Ne6 33.Ra1 Rd7 34.Rc1 Nc5 35.Kg3 Rd3 36.Kh2 Rb3 37.Nd4 Rb2 38.f3 Rd2 39.Nc6 Nd3=+ 40.Rc3 Nf4-/+ 41.Kg3?? Ng2 42.Nb4 h5-/+ 43.Rc7? h4–+ 44.Kh2 Nf4 45.Kg1? Nh3 46.Kf1 Rf2 47.Ke1 Rf3 48.Rc6 Rb3 49.Nd5 Rb5 50.Nb6 Nf4 51.Nc8 h3 52.Rc4 h2 53.Rf4 h1Q 54.Rf1 Re5 55.Kf2 Rf5 56.Ke2 Qe4 57.Kd2 Rd5 (57...Rd5 58.Kc3 Qd3 59.Kb2 Rb5 60.Ka2 Qc4 61.Ka3 Qb3#) 0–1. makaveli1982 – perskak, internet, 2007.

6.Be2 Qd6 7.0-0+=.

6.Be2 Qd6 7.a3 a5 8.b5 Bg4 9.Nbd2 Nbd7 10.–0 c5 11.h3 Bf3 12.Nf3 c4 13.a4 Rfe8 14.Nd2 Qc7 15.Bc3 e5 16.de5 Ne5 17.Bd4 Rad8 18.c3 Ned7 19.Qc2 Nc5 20.Rab1 b6 21.Rbd1 Re6 22.Rfe1 Bh6 23.Bf1 Rde8 24.Be2 Nfd7 25.Bf3 Rd6 26.Be2 Ne5 27.Be5 Re5 28.Nf3 Re8 29.Nd4 Re3 (29...Bg7 30.g3=) 30.fe3+= Be3 31.Kh1 Ne4 32.Bf3 Nf2 (better is 32...Ng3!? 33.Kh2 Rd8 34.Re3 Nf1 35.Kg1 Ne3=) 33.Kg1+/- Ng4 34.Re3 (better is 34.Kf1!? Nh2 35.Ke2+–) 34...Ne3+= 35.Qe2 Nd1 36.Qe8 Kg7 37.Qe5 f6 38.Qg3 Qc5 (38...Nc3? 39.Ne6 Re6 40.Qc7 Kf8 41.Qd8 Kf7 42.Qd7 Re7 43.Bd5 Nd5 44.Qd5 Re6 45.Qb7 Ke8 46.Qh7+–) 39.Bd1 Rd7 40.Kh1 Kf7 41.Qh4 h5 42.Bf3 Re7 43.Qf4 Re5 44.Qh6 Qf8 45.Qd2 Qa3 46.Nc6 Rf5 47.Bd5 Kg7 48.Bf3 (better is 48.Bc4!? Rc5 49.Nd8 Rc4 50.Qd7 Kh6 51.Ne6 Qc1 52.Kh2 Qf4 53.Nf4 Rf4 54.Qd2+–) 48...Qa4+= 49.Qd7 Kh6 50.Ne7 Qa1 51.Kh2 Qc3 52.h4 Qe5 (52...Qe5 53.g3 Qe7 54.Qe7 Rf3+–). Astasio Lopez,David (2400) – Velten,Paul (2365), Elgoibar ESP, 2012. (=1.d4 Nf6 2.Nf3 d5 3.e3 g6 4.b4 Bg7 5.Bb2 0-0)

6.Be2 Qd6 7.a3 Bf5 8.0-0 Nbd7 9.Nbd2 Nb6 10.c4 dc4 11.Ne5 Rfd8 12.Ndc4 Nc4 13.Nc4 Qd7 14.a4 Nd5 15.Qb3 c6 16.b5 Rac8 17.Rfd1 Be6 18.Ne5 Qc7 19.Qa3 c5 (19...Qd6!? 20.bc6 bc6+=) 20.Rac1+/- Be5 21.de5 b6 22.Bc4 Rd7 23.g3 (23.Qb3 Rcd8+=) 23...Qb7 24.Qb3 Rcd8 25.e4 Nc7 26.Rd7 Rd7 27.f3 Bc4 28.Qc4 Ne6 29.f4 Nd4 30.Qd3 Nf5 31.Qe2 Nd4 32.Qe3 a6 33.Rd1 (better is 33.f5!?=) 33...ab5-/+ 34.f5? (34.ab5!? Nb5 35.Rd7 Qd7 36.Qb3-/+) 34...gf5 35.Qg5 Kh8 (35...Kf8 36.Bd4 Rd4 (worse is 36...cd4 37.Qf5 e6 38.Qh7+=) 37.Rd4 cd4 38.Qf5 e6-/+ (worse is 38...ba4 39.e6 Kg7 40.ef7=)) 36.e6-/+ fe6 37.Qh6 Qb8 38.Qe6 Qd6 39.ef5? (better is 39.Bd4!? cd4 40.Qf5=) 39...Qe6 (39...ba4!? 40.Qc4 a3 41.Bd4 cd4 42.Ra1–+) 40.fe6-/+ Rd6 41.ab5 Kg7 (41...Re6?! 42.Bd4 cd4 43.Rd4=) 42.Kf2 Kf6 (42...Re6?! 43.Bd4 cd4 44.Rd4=) 43.Ke3 Re6 44.Kf4 Kg6 (44...Rd6!?-/+) 45.Bd4+= cd4 46.Rd4 1–0. Slabek,Grzegorz (2105) – Gora,Antonina (1780), III MMK – OPEN max Poland, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 d5 4.Bb2 Bg7 5.e3 0-0)

6.Be2 c6

7.0-0 Nbd7 8.a4 a5 9.b5 c5 (9...cb5 10.ab5 Nb6 11.Qe1=) 10.c4 b6 11.Ne5 Bb7 12.Nc6 Bc6 13.bc6 Nb8 14.dc5 Nc6 15.cd5 Nd5 16.Bg7 Kg7 17.Ra2 Ndb4 (17...bc5? 18.Rd2 e6 19.e4+/-) 18.Rd2 Qb8 19.Qc1 bc5 20.Qc5 Rc8 21.Na3 Qa7 (21...Qe5 22.Qe5 Ne5 23.f4+=) 22.Qa7 (22.Qc3 e5+=) 22...Na7 23.Nc4 Rc5 24.Rd7 Nac6 25.f4 Na2 26.Ra1 Nc3 27.Bf1 (27.Bd3 Nb4 28.Nd2 Rb8=+) 27...Rb8=+ 28.Ra3 Ne4 29.Nd2 Nd6 30.Rd3 (30.g4 Rb2 31.Nb3 Rcc2-/+) 30...Rc2 31.Nb3 (31.g4 Rbb2 32.R3d6 ed6-/+) 31...Rb4-/+ 32.Rc7 Ra4 33.Rd2 Rc3 34.Rd6 (better 34.Nd4 Rc1 35.Rc6 Rd4 36.ed4 Rc6 37.Ra2-/+) 34...ed6-+ 35.Nd4 Re3 (35...Nd4?! 36.Rc3 Nf5 37.g4-/+) 36.Nc6 Rc3 37.Bb5 (37.Rc8-+) 37…Ra1 (37...Ra1 38.Kf2 Ra2 39.Be2 d5-+; 37...Rf4?! 38.h3-+) 0-1. Adly,A (2635) - Puranik,A (2570), Douglas ENG, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.d4)

7.a4 Qb6 8.0-0+=.

7.a4 Nbd7 8.0-0 Ne4 (8...a5 9.b5=) 9.c4 Re8 (9...Ndf6 10.Nc3=) 10.Nc3 (10.Nbd2 Ndf6+=) 10...Ndf6 (10...Nc3 11.Bc3 dc4 12.Bc4=) 11.Qb3 (11.Ne5 Nc3 12.Bc3 Be6+=) 11...Bg4= 12.Rfd1 Nc3 (12...Qd6 13.Rac1=) 13.Bc3 Ne4 14.Bb2 (14.cd5 Qd5 15.Qc2 Rad8=) 14...Ng5 15.Qc2 (15.a5 Nf3 16.gf3 Bf5=) 15...Nf3 16.Bf3 (16.gf3 Bh3 17.f4 Bf5+=) 16...Bf3+= 17.gf3 Qd7 (17...e6 18.f4+=) 18.Kg2 (18.a5 e6+=) 18...e5 (18...a5 19.ba5 dc4 20.Bc3+=) 19.de5= Be5 20.Be5 (20.cd5 cd5 21.Qb3 Rad8=) 20...Re5+= 21.cd5 Rh5 22.Kf1 cd5 23.Rac1 (23.Ke2 Rh2 24.Rd4 Rc8-/+) 23...Rh2 24.Qc7 (24.Ke2 Rh4 25.b5 Rd8-/+) 24...Qh3 25.Ke2 Qg2 (better is 25...Qh4!? 26.Rf1 b6-/+) 26.Rf1= Rh4 (better is 26...d4!? 27.Qb7 Rd8=) 27.Qb7+/- ½–½. Slabek,Grzegorz (1950) – Marzec,Karol (2035), 7th Krakow Poland, Open–B, 2016. (=1.Nf3 g6 2.b4 Bg7 3.d4 d5 4.e3 Nf6 5.Bb2 0-0)

7.a4 Ne4 8.0-0= Bf5 9.c4 (9.Nbd2 Na6=) 9...dc4 (9...Na6 10.b5 Nb4 11.Nc3=) 10.Bc4 Nd7 11.Nc3 Nd6 12.Be2 e5 13.b5 c5 14.dc5 Nc5 15.Nd5 (15.Qd5 Nde4 16.Rfd1 Nc3 17.Bc3 Qd5 18.Rd5 Rfc8+=) 15...Re8 16.a5 Nde4 17.b6 ab6 (17...Nd3 18.Qd3 Ng3=) 18.ab6 (better is 18.Nb6!? Rb8 19.Qd8 Rbd8 20.Rad1=) 18...Ra1-/+ 19.Ba1 Re6 20.Bc4 (20.Nc3!? Qb6 21.Ne4 Be4 22.Qc1-/+) 20...Rd6–+ 21.Be5 (better is 21.Qe2 Rd5 22.Bd5 Qd5 23.Rd1–+) 21...Be5 22.Ne5 Be6 23.f3 Bd5 24.Nf7 Bf7 25.Bf7 Kf7 26.fe4 Kg8 27.Qf3 Qe7 28.e5 Rd8 29.h3 Qe5 30.Qf7 Kh8 31.Kh1 Ne4 32.Rf4 Re8 33.Qb7 Ng3 34.Kh2 Ne2 35.Qf3 Nf4 36.ef4 Qe3 (36...Qe3 37.Kg3 Kg7–+) 0–1. Slabek,Grzegorz – Shishkin,Vadim, MMM, 2012. (=1.d4 Nf6 2.Nf3 g6 3.b4 d5 4.Bb2 Bg7 5.e3)

7.Nc3 a5 8.ba5 Ra5 9.0-0 Be6 10.Bd3 Qd7 11.Ne5 Qc8 12.Ne2 Ng4 13.Nf3 Nf6 14.h3 Bh3 15.gh3 Qh3 16.Ng3 Qc8 17.Kg2 c5 18.Rh1 c4 19.Bc3 Ra3 20.Bb4 Ra4 21.Be7 Re8 22.Bf6 Bf6 23.Be2 b5 24.c3 Nc6 25.Qc2 h5 26.Nh5 gh5 27.Rh5 Qg4 28.Kf1 Qh5 29.Ke1 Qh1 30.Bf1 Qf3 0–1. TriAngel – BLITZKING5, ICC 1999.

7.c4 dc4 8.Bc4 Nd5 9.a3 a5 10.ba5 Qa5 11.Nbd2 Nb6 12.0-0 Nc4 13.Nc4 Qb5 14.Qc2 Bf5 15.e4 Be6 16.Ne3 Nd7 17.Rfb1 Qa4? (better is 17...Bb3 18.Qc1 Qa4+/-) 18.Qa4+– Ra4 19.d5 cd5 20.ed5 (20.Nd5?! Bd5 21.ed5 Nf6=) 20...Bf5 21.Nf5 (21.Bg7 Kg7 22.Rb7 Rd8+–) 21...gf5+/- 22.Bg7 Kg7 23.Rb7 Rd8 24.g3 Kf6 25.Kg2 Nc5 26.Rb6 Rd6 27.Rd6 ed6 28.Ng1 Nb3 29.Ra2 Na5 30.Ne2 Nc4 31.Rc2 Na3 32.Rc6 Ke7 33.Rc7 Kf6 34.Nf4 Nc4 35.Nh5 (35.Rc8 Ke5+=) 35...Kg5 (35...Kg6 36.Nf4 Kf6+=) 36.Ng7+/- Kg6 (36...Kf6!? 37.Ne8 Ke5 38.Rf7 Ra2+=) 37.Ne8 Ra8 38.Rc4 Re8 39.Rc6 Rd8 40.f4 Kf6 41.Kh3 Kg6 42.Kh4 Kh6 ½–½. Golubovic,Boris (2450) – Jankovic,Alojzije (2445), CRO–chT Sibenik, 2005. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3 0-0)

5.d4 c6

6.Nbd2 0-0 7.Be2 Bf5 8.0-0 Ne4 9.Ne4 Be4 10.Nd2 Bf5 11.c4 dc4 12.Nc4 Nd7 13.Rc1 Rb8 14.a3 Nb6 15.Na5 Qd6 16.Bf3 a6 17.Qe2 e5 (17...Rfd8!?=) 18.de5+/- Be5 19.Rfd1 Qf6 (19...Bh2? 20.Kh1 Nd5 21.Rc5+–) 20.Be5 Qe5 21.Qd2 Qf6 (21...Be4 22.Be4 Qe4 23.f3+=) 22.Qd4 Qd4 23.Rd4 Be6 24.Be2 Rfc8 (24...f5!?+=) 25.Nb7+/- Rb7 26.Ba6 Rbc7 27.Bc8 Rc8 28.a4 Na4 29.b5 Nb6 (29...cb5? 30.Rc8 Bc8 31.Rd8 Kg7 32.Rc8+–) 30.bc6 Kf8 31.f3 Ke7 32.Kf2 Bd5 33.Rb4 Nd7 34.c7 Be6 35.f4 (35.e4 Nf6+=) 35...h6 36.g4 (36.e4 Nf6+=) 36...Nf6 37.Rb8 (37.h3 Nd5 38.Rb8 Kd6+=) 37...Kd7 38.e4 (38.g5!? hg5 39.Rc8 Kc8 40.fg5 Ne4 41.Kf3 Ng5 42.Kf4=) 38...Rc7 39.Rc7 Kc7 40.Rh8 h5 (40...Ng4 41.Kg2-/+) 41.e5?? (better is 41.gh5 Nh5 42.f5+=) 41...Nd5?? (better is 41...Ng4 42.Kg3 Kb6-/+) 42.gh5 (better is 42.f5 Bd7 43.gh5 gh5 44.Rh7+–) 42...gh5+/- (42...Nf4?? 43.h6+–) 43.Rh5 ½–½. Epishin,V (2560) – Danin,A (2590), 3rd Hofheim Spring Open, 2015. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d5 5.e3 c6)

6.Be2 0-0 7.0-0 Qd6 8.a3 Bg4 9.Ne5 (9.Nbd2 b5=) 9...Be2 10.Qe2 Nbd7 11.Nd7 Qd7 12.Nd2 a5 13.Nb3 ab4=+ 14.ab4 b6 (14...Qd6 15.b5=) 15.h3 (15.c4 Rfd8=) 15...Qe6 (15...Qd6 16.b5=+) 16.c3 (16.Ra6 Ra6 17.Qa6 Qf5=+) 16...Ne4=+ 17.Nd2 Nd6 (17...Nd2 18.Qd2 f5 19.Qd3=+) 18.Ra8 (18.Rfc1 Rfb8=+) 18...Ra8 19.Ra1 Ra1 20.Ba1 Qf5 21.Nf1 (21.Nf3!?-/+) 21...Qb1–+ 22.Qb2 Qe1 23.Qa2 h6 24.g3 (24.h4 Ne4-/+) 24...Nc4 25.Kg2 e5 26.g4 (26.de5 Be5 27.Qa8 Kh7 28.Qc6 Qa1 29.Qd5 Qc3 30.Qf7 Bg7–+) 26...e4 27.Bb2 (better is 27.Qa8 Kh7 28.Qa2–+) 27...Qe2 28.Qa8 Kh7 29.Bc1 Bf6 30.Ng3 Qf3 (30...Qf3 31.Kg1 Bh4–+) 0–1. divergence (1720) – pierre (2135), internet, 2007.

5.d4 Nc6

6.b5 Na5 7.Nbd2 c6 8.a4 0-0 9.Be2 Bg4 10.0-0 Bf3 11.Nf3 cb5 12.ab5 b6 13.Bc3 Nc4 14.Bc4 dc4 15.Bb4 Re8 16.c3 Qd5 17.Qe2 (better is 17.Qa4!?+=) 17...Qb5=+ 18.Ne5 Ne4 (18...Nd5 19.Rfc1-/+) 19.Qc4 (19.f3!? a5 20.fe4 ab4 21.Rab1 Be5 22.Rb4=+) 19...Qc4-/+ 20.Nc4 a5?? (better is 20...Rac8–+) 21.Nb6+/- Ra6 22.Ba5 Nc3 23.Bc3 Rb6 24.Rfb1 Reb8 25.Rb6 Rb6 26.h3 f6 27.Ra4 Kf7 28.Bb4 Bf8 29.Bc5 Rb1 30.Kh2 Ke6 31.g3 h5 32.Ra6 Kf7 33.Kg2 f5 34.Kf3 g5 35.d5 Rc1 36.Ba3 Rc3 37.Bb4 Rc2 38.Ra7 Rc4 39.Ba3 Rc3 40.d6+– Ke6? 41.de7 (41.de7 Be7 42.Re7 Kd5 43.Ra7+–) 1–0. mihai740609 (1635) – vathna, kurnik, 2011.

6.b5 Na5 7.Nbd2 Bf5 8.c4 b6 (8...0-0 9.cd5 a6 10.ba6 ba6 11.Rc1=) 9.Be2= Qd6 (9...0-0 10.0-0=) 10.a3 (10.Qa4 Ne4+=) 10...c5 11.bc6 Qc6 (11...Rc8 12.Rc1 0-0 13.cd5 Qd5 14.0-0=) 12.Ne5 Qc7 13.Qa4 (13.g4 Be6 14.cd5 Nd5 15.Bb5 Kf8 16.Rc1+=) 13...Nd7? (better is 13...Bd7 14.Nd7 Qd7 15.Qd7 Kd7 16.cd5 Nd5 17.Bb5 Kd6+=) 14.cd5+– 0-0 15.Rc1 Qd6 (15...Qb7 16.e4 Ne5 17.de5 Bd7+–) 16.Nd7 (better is 16.e4!? Ne5 17.de5 (17.ef5?! Nd7+/-) 17...Be5 18.Be5 Qe5 19.ef5+–) 16...Bd7+/- 17.Qb4 Qd5 (17...Rac8 18.Qd6 Rc1 19.Bc1 ed6 20.Ne4+/-) 18.Bf3 Qe6 19.Ba8 Ra8 20.0-0 Nc6 21.Qc4 Qd6 (21...Qf5 22.e4 Qh5 23.Qd3+–) 22.Nf3 (22.Ne4!? Qb8+–) 22...Rc8 23.Ng5 Nd8 24.Qb4 Qf6? (better is 24...Nc6 25.Qd6 ed6+–) 25.Rc8 Bc8 26.Ne4 Qe6?! (26...Qh4 27.f3 Ba6 28.Rf2+–) 27.d5! Qd5 (27...Qd7 28.Bg7 Kg7+–) 28.Bg7 Kg7 29.Qd4 (better is 29.Qc3 Kh6 30.Qc8+–) 29...Qd4+/- 30.ed4 Bb7 31.Nc3 e6 (31...Ne6 32.Rd1+/-) 32.Rd1 f5 (32...Bc6 33.Rc1+/-) 33.Re1 (33.d5 Kh6+–) 33...Kf6+/- 34.Nb5 a5 (34...Nc6 35.a4+/-) 35.Rc1 (35.Nc3 Bc8+–) 35...g5 (35...Nc6 36.Rb1 Ke7 37.Nc3 Nd4 38.Rb6+–) 36.Nd6 (36.Na7 Nf7 37.Rb1 Nd6 38.Rb6 Ke7+–) 36...Bc6? (better is 36...Bd5!?+/-) 37.Rb1+– Ke7 (37...Ba4 38.Rb6 Bc2 39.Nc4+–) 38.Nc8 Kd7 39.Nb6 Kc7 40.Nc4 a4 41.Ne5 (41.Rb4 g4+–) 41...Be8 42.Rc1 Kd6?! (42...Nc6+–) 43.Rc8 Ke7 44.Rc7 Kf6 45.Nd7 (45.Rh7 Nc6 46.Nc6 Bc6+–) 45...Ke7 46.Nc5 Kd6 47.Ra7 (better is 47.Rh7 Nc6 48.Rh8+–) 47...Kd5?? (47...Nc6 48.Ra4 Nd4 49.Rd4 Kc5+–) 48.Ra8 Bc6 (48...Nc6 49.Re8 Nd4 50.Na4+–) 49.Rd8 Kc4 50.Ne6 1–0. Da Silva Junior,MA – Cezar,R De Almeida (1755), Imbituba BRA, Open, 2014.

6.b5 Nb8 7.c4 Be6 (7...0-0 8.cd5 Nd5 9.e4=) 8.Nc3 (8.cd5 Nd5 9.e4 Nb6+=) 8...dc4 9.Ng5 0-0 (better is 9...Bg4!? 10.f3 Bh6+=) 10.Ne6+– fe6 11.Bc4 Kf7 (11...a6 12.Qf3 Qc8 13.Qh3+–) 12.Qf3 c6 13.Ne4 (better is 13.0-0 a6 14.Ne4+–) 13...Qd7?? (better is 13...Kg8+–) 14.Be6! Qe6 15.Ng5 (15.Ng5 Kg8 16.Ne6+–) 1–0. pierre – theet, internet, 2011.

5.d4 Nbd7

6.Nc3 0-0 7.Bd3 c6 8.0-0 e5 9.Ne5 Ne5 10.de5 Ng4 11.Be2 Ne5 12.f4 Nd7 13.Rf3 Re8 14.Rb1 Nb6 15.Kh1 Qe7 16.Rg3 Qb4 17.Nd5 Nd5 18.Bg7 Qe7 19.Ba1 Qc5 20.Bd4 Qe7 21.Bd3 b6 22.f5 c5 23.Qh5 cd4 24.fg6 fg6 25.Bg6 1–0. Sturm – L Thompson, corr 1957.

6.Nbd2 Nb6 7.a4 Bd7 8.c4 Nc4 (8...a5 9.c5 Nc8 10.b5+=) 9.Nc4+= dc4 10.Bc4 0-0 11.Ne5 Bf5 12.Qb3 Qe8 13.f3 Bc8 14.a5 Nd7 15.0-0 Ne5 16.de5 Kh8 17.b5 f5 (17...c6 18.Rac1+/-) 18.f4 b6? (better is 18...h6+/-) 19.ab6+– cb6 20.Bd5 Rb8 21.Ra7 Bd7 22.Ba3 (22.e6!? Bb5 23.Rc1 Rg8+–) 22...e6 23.Rd7 (23.Bf8!? Bf8 24.Bc4 Rd8+–) 23...ed5 (23...Qd7 24.Be6 Qe8 25.Bd5+–) 24.Qd5 Rd8 25.Rd1 Rd7 26.Qd7 Qd7 27.Rd7 Ra8 28.e6 (28.Bd6 Kg8+–) 28...Kg8 29.Bd6 (29.Rb7 h6 30.Kf2 g5 31.Rb6 gf4+–) 29...Re8 30.Re7 Rd8 (30...Re7 31.Be7 Bf8 32.Bg5+–) 31.Bc7 Rc8 32.Bb6 Rb8 (32...Bf8 33.Rd7 Re8 34.Bd4+–) 33.Bc7 Bf8 34.Bb8 Be7 35.b6 Bc5 36.b7 1–0. Djurkovic,Maks (2135) – Zdrazil,Bohumir (2025), Znojmo Hostan op, 2003. (=1.d4 Nf6 2.Nf3 g6 3.b4 d5 4.Bb2 Bg7 5.e3)

5.d4 Bf5

6.c4 c6 7.a4 0-0 8.Na3 Ne4 9.Qb3 e6 10.Be2 Nd7 11.Rd1 g5 (11...a5 12.b5=) 12.Nb1 (12.0-0 a5 13.b5 Qf6=) 12...dc4 13.Qc4 (13.Bc4 g4 14.Ne5 Ne5 15.de5 Qh4=) 13...Nb6 (13...a5 14.Ba3=) 14.Qb3 Qd5 15.Qa3 a5 16.b5 Nc4 17.Bc4 Qc4 18.Nbd2 Qb4 (18...Qd5 19.bc6 bc6 20.0-0=+) 19.bc6 bc6 20.Qb4 ab4 21.Ne4 Be4 22.Ng5 Bc2 23.Ra1 c5 Attacks the isolani on a4 (23...Ba4 24.Ne4 Bc2 25.f3-/+) 24.Kd2 (better 24.a5!?+=) 24...Ba4=+ 25.Rhc1 cd4 26.ed4 Bb3 27.Kd3 Bd5 28.Ne4 b3 29.Ra8 Ra8 30.f3 h6 31.Rb1 (31.Nc3 Bc6=+) 31...Kh7 (31...Rc8 32.Ba3-/+) 32.Bc1 (32.Nc3 Bb7=+) 32...Ra2 33.Bb2 Ra7 (33...Ra4 34.h4-/+) 34.Bc1 (34.Nc3 Bc6=+) 34...Ra4-/+ 35.Bb2 Kg6 36.Nc5 Ra2 37.Kc3 Ra7 38.Bc1 (38.Nb3? Rc7 39.Kd3 Bb3-+) 38...Rc7 39.Kd3 Rc8 40.Bd2 Rb8 41.Nd7 Rb5 (41...Rb7 42.Ne5 Kh7 43.Bf4-/+) 42.Kc3 h5 43.Kd3 (43.Ne5 Be5 44.de5 h4-/+) 43...Kf5 44.Nc5 Rb8 (44...e5 45.Bc3-/+) 45.Ne4 (45.Nd7 Rb7 46.Nc5 Rb6=+) 45...e5 46.Nc3 Bb7 (46...Ke6 47.Nd5 Kd5 48.de5 Be5 49.f4-/+) 47.Rb3 (47.g4 hg4 48.fg4 Kg6 49.Rb3 Ba6 (worse 49...ed4 50.Rb6 Kh7 51.Nd5+/-) 50.Kc2 Bd3 51.Kb2 Rb3 52.Kb3 ed4=+) 47...Ba6-/+ 48.Kc2 Bd3 (48...Rb3 49.Kb3 ed4 50.Nd5-/+) 49.Kb2 (49.Kd3!? Rb3 50.d5=+) 49...Rb3-/+ 50.Kb3 ed4 51.Nd5 Bf1 52.Nf4 h4 53.Kc2 Be5 54.g3 h3 (54...Bc4 55.g4 Kf6 56.Kd1-/+) 55.Kd1=+ Bf4 ½-½. Savchenko,B (2550) - Matinian,N (2470), 16th Ugra Governor's Cup, 2020.

6.c4 c6 7.Nc3 dc4 8.Bc4 b5 9.Be2 a5 10.a3 Nbd7 11.0-0 0-0 12.Qb3 Ne4 13.Ne4 Be4 14.Nd2 Bd5 15.Qc2 ab4 16.ab4 Qb6 17.Rfc1 Ra1 18.Ra1 Qb7 19.Rc1 Rc8 20.Nb3 Bb3 21.Qb3 e6 22.g3 (22.Rc2 Nb6+=) 22...Nb6 23.Bf3 ½–½. Lebel,Patrick (2165) – Chimento,Laurent (1990), 3rd Hautes Alpes op, 2002. (=1.Nf3 Nf6 2.d4 g6 3.e3 Bg7 4.b4 d5 5.Bb2)

6.Nbd2 0-0 7.c4=.

6.Nbd2 e6 7.Be2 Nbd7 (7...0-0 8.0-0=) 8.0-0+= 0-0 9.c4 (9.Nh4 Be4+=) 9...c6 (9...dc4 10.Nc4 Nd5 11.Nfd2=) 10.Rc1 (10.Nh4 Qe7 11.c5 Rfe8+=) 10...Re8 (10...dc4 11.Nc4 Qe7 12.Ba3+=) 11.c5 Ne4 12.Ne4 de4 13.Nd2 (13.Ne1 e5+=) 13...h5 (13...e5!?=) 14.Nc4+/- b5 (14...Qg5 15.f4 ef3 16.Bf3+/-) 15.Nd6 Rf8 16.a4 a6 17.f3 ef3 (17...Qg5!? 18.fe4 Qe3 19.Kh1 Bg4 20.Bg4 hg4+–) 18.Bf3+– (18.Rf3?! Nf6+/-) 18...e5? (18...Bg4 19.Bg4 hg4 20.Qg4 Nf6+–) 19.Nf5 gf5 20.Bc6 Ra7 21.Rf5 ba4 22.Ba4 Qh4 (22...ed4 23.Bd4 Qe7 24.Qf3+–) 23.de5 (better is 23.Rh5!? Qe4 24.Qf3 Qf3 25.gf3 ed4 26.ed4 Rb8+–) 23...Qb4 24.Bd4 Rc7 25.e6 (25.Rg5!? Nc5 26.e6 Ne6 27.Rg7 Ng7 28.Rc7 Ne6+–) 25...fe6 (25...Bd4 26.Rg5 (worse is 26.ed4 Nf6 27.Rf6 fe6 28.Re6 Rf4+–; 26.Bd7?! Be3 27.Kh1 Qe4 28.ef7 Rf7 29.Rf7 Kf7 30.Qh5 Kg7+–) 26...Bg7 27.ed7+–) 26.Rg5 (26.Rg5 Nc5 27.Bc5+–) 1–0. abiodun – bluewolf, net–chess.com, 2018.

5.d4 Bg4

6.Be2 0-0 7.0-0 c6=.

6.Be2 0-0 7.Nc3 c6 8.h3 Bf3 9.Bf3 Nbd7 10.0-0 e5 11.b5 e4 12.Be2 cb5 (12...Rc8 13.Rb1=) 13.Nb5 (13.Ba3 Re8 14.Nb5 Nb6=) 13...a6 14.Nd6 (14.Nc3 Rc8=+) 14...Qb6 (14...b5!? 15.a4 b4=+) 15.Ba3= Qa5 16.Qc1 b5 17.Rb1 (17.Nb7!? Qb6 18.Bf8 Kf8 19.Nc5 Nc5 20.dc5 Qc5 21.a4=) 17...Rfb8=+ 18.Bb4 Qa2?? (18...Qc7 19.Qb2 Bf8 20.Nb5 ab5 (20...Rb5?! 21.Bb5 ab5 22.Bf8 Nf8 23.Qb3-/+) 21.Bf8 Nf8 22.Bb5 N8d7–+) 19.Ra1+– Qa1 20.Qa1 Nb6 21.Qa5 Nc4 22.Qc7 Nd6 23.Bd6 Rc8 24.Qb7 Ne8 25.Bf4 h6 26.Ra1 g5 27.Bg3 Nf6 28.Ra6 Ra6 29.Qc8 (29.Qc8 Kh7 30.Qa6+–) 1–0. pierre – mediath, internet, 2008.

6.Be2 Nc6 7.h3 (7.b5!? Nb8 8.c4=) 7...Bf3=+ 8.Bf3 Nb4 9.0-0 0-0 10.Nd2 Nc6 11.c4 dc4 (11...Rb8 12.Rb1=+) 12.Nc4 (12.Bc6 bc6 13.Nc4 Qd5=) 12...Rc8 (12...Nd5 13.Qb3=) 13.Qa4 (13.Bc6 bc6 14.Ba3 Ne4=) 13...a6 (13...Nd5!?=) 14.Bc6+/- bc6 15.Qc6 (15.Qa6 Qd5 16.Ne5 c5+/-) 15...Ra8 16.Rab1 Qd7 (16...Qd5 17.Qd5 (17.Qc7 Rfc8 18.Qc8 Rc8-/+) 17...Nd5 18.Na5+=) 17.Ne5 Qc6 (17...Qd6 18.Rfc1+/-) 18.Nc6+/- Rfe8 19.Rfc1 Ne4 20.Ba3 Nd6 21.Na5 Nb5 22.Bc5 e5 23.d5 e4+= 24.Bb4 Rec8 25.Nc6 Nd6?? 26.Ne7 Kh8 27.Nc8 Nc8 28.Rc7 a5 29.Rbc1 Nb6 30.Bc3 Bc3 31.R1c3 Nd5 32.Rc8 Rc8 33.Rc8 Kg7 34.Ra8 a4 35.a3 Nc3 36.Re8 f5 37.Re7 Kg8 38.Ra7 h5 39.Rc7 Nb5 40.Rc8 Kf7 41.Ra8 Na3 42.Ra4 Nb5 43.Rb4 Nc3 44.g3 Nd5 45.Rd4 Ke6 46.Kg2 Ke5 47.Ra4 Nc3 48.Ra8 Ke6 49.h4 Kf7 50.Ra7 Ke6 51.Rg7 Kf6 52.Rg8 Nd5 53.Rd8 Ke6 54.Ra8 Nc7 55.Ra1 Nd5 56.Re1 Kf6 57.f3 Ke5 58.Kf2 Nc3 59.Rc1 Nd5 60.f4 Ke6 61.Rc6 Kf7 62.Rd6 Ne7 63.Ra6 Nd5 64.Ra1 Nc3 65.Rc1 Nd5 66.Ke2 Ke6 67.Kd2 Kd6 68.Ra1 Ke6 69.Ra6 Kf7 70.Rd6 Nb4 71.Kc3 Nd3 72.Kd4 Kg7 73.Rd7 Kf6 74.Rd6 Kf7 75.Kd5 Nf2 76.Ke5 Ng4 77.Kd5 Ne3= 78.Kd4 Nf1 79.Ke5 e3 80.Rd1?? Ng3?? 81.Re1+= e2 82.Kd4 Kf6 83.Ke3+/- g5 84.hg5 Kg6? 85.Kf2 h4 86.Kg2 Nh5 87.Kf3 Ng3 88.Re2 Ne2 89.Ke2 Kh5 90.Kf3 Kg6 91.Kg2 Kh5 92.Kh3 Kg6 93.Kh4 Kg7 94.Kh5 Kh7 95.g6 Kg7 96.Kg5 Kg8 97.Kf5 Kg7 98.Kg5 Kg8 99.f5 Kg7 100.f6 Kg8 101.f7 Kg7 102.Kf5 Kf8 103.Ke6 Kg7 104.Ke7 Kg6 105.f8Q Kg5 106.Ke6 Kg4 107.Qf5 Kg3 108.Ke5 Kh4 109.Ke4 Kg3 110.Qf4 Kh3 111.Ke3 Kg2 112.Ke2 Kg1 113.Qg4 Kh2 114.Kf2 Kh1 115.Qg2 (115.Qh5) 1–0. gtate (1655) – wmalone (1760), net–chess.com, 2001.

6.Be2 Nbd7 7.Nbd2 0-0 8.0-0 c6 9.c4 Bf3 10.Bf3 Re8 11.Qb3 Nb6 12.a4 dc4 13.Nc4 Nc4 14.Qc4 Rc8 15.Rfc1 Qd7 16.Rc2 Qf5 17.Rac1 e5 18.de5 Nd7 19.Bg4 Ne5 20.Bf5 Nc4 21.Bc8 Bb2 22.Bb7 Rb8 23.Rd1 Rb7 24.Rc4 Ba3 25.Rb1 a5 26.b5 c5 27.Rd1 f5 28.g4 Kf7 29.gf5 gf5 30.Rd6 1–0. Railo – Kohonen, 1987.

5.Be2 0-0

6.0-0 b5 7.a4 (7.Bb5 a5 8.ba5 Ra5+/-) 7...ba4+= 8.Ra4 Bd7 9.Ra3 Nc6 (9...Bg4!?+=) 10.b5+/- Nb8 11.Nc3 (11.Bd4 Ne4+/-) 11...e6 (11...c6 12.Qa1+=) 12.h3 (12.Qa1!?+/-) 12...c6+= 13.Rb3 (13.Qa1 cb5 14.Nb5 a5+=) 13...cb5 14.Nb5 Nc6 (14...Bb5 15.Bb5 Nbd7 16.Bd4+=) 15.Ba3 Na5 (better is 15...Ne7!?+=) 16.Bf8+– Nb3 (better is 16...Qf8!? 17.Rb1 Ne4+/-) 17.Bg7 (17.cb3?! Bf8 18.Ne5 Ne4=) 17...Nd2 18.Qd2 Kg7 19.Qd4 (19.c4 a5+–) 19...a6 (19...Bb5 20.Bb5 Rb8 21.Qa4+–) 20.Nd6 (20.Nc3 Qc7+–) 20...Qc7 21.Qe5 Qc2 22.Nd4 (22.Bd1 Qc6+–) 22...Qd2 (22...Qc5 23.Rb1+–) 23.Rb1 Rd8?? (23...Ra7+–) 24.Rb7 (worse is 24.Ba6 Qa2 25.Bd3 Qd2+–) 24...Qc1 25.Kh2 Qc5 26.Bg4 h5 (26...Kg8 27.Be6 fe6 28.Ne6 (28.Qf6 Qd6 29.f4 Rf8=) 28...Qd6 29.Qd6+–) 27.Be6! fe6 28.Ne6 (28.Ne6 Kg8 29.Nc5 Rc8 30.Qf6 Rf8 31.Qg6 Kh8 32.Rd7 Rf2 33.Qg7) 1–0. Adlai – Ernan, corr, 2018.

6.0-0 c5 7.c3 c4 8.d3 cd3 9.Qd3 Nbd7 10.Nbd2 b6 11.Rac1 Bb7 12.c4 e6 13.cd5 Bd5 14.a3 Qe7 15.Ne5 Ne5 16.Be5 Rac8 17.Bf3 Bf3 18.Nf3 Nd5 19.Bg7 Kg7 20.Qd4 f6 21.Rc8 Rc8 22.Rd1 Qb7 23.Ng5 Qc6 24.g3 Nc3 25.Qd7 Kh6 26.Nf7 Kh5 27.Qc6 Rc6 28.Rd6 Rd6 29.Nd6 Nb1 30.a4 Nc3 31.a5 Nd5 32.ab6 ab6 33.b5 Nc3 34.e4 Kg4 35.f3 Kf3 36.Ne8 Ne4 37.Nc7 e5 38.Nd5 Nc3 39.Nc3 e4 40.Kf1 f5 41.Nd5 e3 42.Nb6 g5 43.Nd5 f4 44.gf4 gf4 45.b6 e2 46.Ke1 Kg2 47.Nf4 Kf3 48.Ne2 1–0. Phomopsis (1660) – ronaldovsk (1685), lichess.org, 2018.

6.0-0 c5 7.bc5 Qc7 8.d4 b6 9.cb6 Qb6 10.Qc1 Nc6 11.Nc3 Bf5 (11...Rb8 12.Rb1 Ba6 13.Bd3+=) 12.Rb1 Nb4 Attacking the backward pawn on c2 (12...Qa5 13.Nd2+=) 13.Ba3 (13.a3 Nc6+=) 13...a5 14.Bd3 Bd3 (14...Nd3 15.Rb6 Pinning (15.Rb6 Deflection); 14...Bd3 15.cd3 Combination) 15.cd3+/- Qc7 (15...Rfc8 16.Qd2+/-) 16.Qd2 Rfc8 (16...Rfb8 17.Rfc1 Qd6 18.h3+/-) 17.Rfc1 Qb6 (17...Qb7 18.Ne5+/-) 18.Ne5+– Qa6 (18...Qb7!?+–) 19.Bb4 ab4 20.Rb4 Qa2?? (better is 20...Rc7+–) 21.Na2 Rc1 22.Nc1 Nh5 1–0. ggo7801g – uot8316h, internet online chess game, 2018.

6.0-0 Nc6 7.a3 a6 8.c4 dc4 9.Bc4= b5 10.Be2 Bb7 11.d4 e6 12.Nbd2 Qe7 13.Nb3 Nd7 14.Qc2 Rac8 (14...f5 15.Nfd2+/-) 15.Rad1 Rfd8 (15...Qd6 16.Ne5 Nce5 17.de5+/-) 16.e4 (16.Nfd2 Ba8+/-) 16...Ncb8 (16...Re8 17.h3+/-) 17.Bd3 (17.Na5 Ba8+/-) 17...Nb6 (17...Nc6 18.h4+/-) 18.Nc5 (18.Na5 Ba8+/-) 18...Ba8 19.Rfe1 c6 (19...N6d7 20.Nb3+/-) 20.e5+– Nd5 21.Bc1 Qa7 (21...h6 22.Ne4+–) 22.Re4 (22.Ne4!?+–) 22...Nd7+/- 23.Rh4 Nf8 ½–½. Wartenberg,Erwin – Girg,Rolf (1605), Rheinhessen–ch HT1 op, 1999.

6.0-0 Nc6 7.b5 Na5 8.a4 Nc4 9.Bc4 dc4 10.d3 cd3 11.Qd3 Bf5 12.Qd8 Rfd8 13.c4 Be4 14.Nbd2 Bd3 15.Rfd1 Ne4 16.Ne4 Bb2 17.Rab1 Be4 18.Rd8 Rd8 19.Ng5 Bb1 0–1. Adjailton (1830) – Sudamaz (1795), lichess.org, 2020.

6.0-0 Nc6 7.b5 Nb8 8.c4 dc4 9.Bc4 e6 10.Nc3 a6 11.ba6 (11.a4 ab5 12.ab5 Ra1 13.Qa1 Nbd7+=) 11...ba6 (11...b6 12.a7 Ra7 13.d4=) 12.Ne2 (12.Rb1 Nbd7+=) 12...Bb7= 13.Ned4 c5 14.Nc2 (14.Nb3 Nbd7=) 14...Nbd7 15.d4 (15.d3 Rb8 16.Rb1 Bd5=) 15...cd4 (15...Rc8 16.Rc1=) 16.Bd4 (16.Ncd4 Rc8 17.Rc1 e5=) 16...Rc8 17.Bb3 Qc7 18.Bf6 (18.Qe2 Ng4 19.e4 Qf4-/+) 18...Bf6 19.Ncd4 (19.Rc1 Nc5 20.Nce1 Rfd8-/+) 19...Ne5 (19...Rfd8 20.Rc1 Nc5 21.Qe2-/+) 20.Ne5=+ Be5 (20...Qe5 21.Qg4 Rc3=+) 21.Rc1 (21.f4 Bd4 22.Qd4 Qc6=) 21...Qc1 (better 21...Bh2!? 22.Kh1 Qc1 23.Qc1 Rc1 24.Rc1 Bd6-/+) 22.Qc1=+ Rc1 23.Rc1 Rd8 (23...Bd4 24.ed4 Rd8 25.Rd1=) 24.Rd1 (24.Nc6 Bc6 25.Rc6 Rd6 26.Rd6 Bd6=) 24...Bd4 (24...Bg7 25.f4=+) 25.Rd4= Rd4 26.ed4 Kf8 27.Kf1 Ke7 28.g3 Kd6 29.Ke2 Bd5 30.Ba4? (better 30.f4=) 30...Ba2–+ 31.Kd3 Bd5 32.Be8 f5 33.h3 (33.h4 e5–+) 33...a5 (33...Bc6 34.Bf7–+) 34.g4 (34.h4–+) 34...fg4 35.hg4 g5 ½–½. sirgeshdb – freeErgolding (2305), lichess.org, 2020.

6.0-0 Nc6 7.b5 Nb8 8.d3 Re8 9.Nbd2 e5 10.Ne5 Nfd7 11.Nd7 Bb2 12.Rb1 Bg7 13.Nc5 b6 14.Ncb3 Bb7 15.a4 a6 16.c4 ab5 17.cb5 Nd7 18.Nd4 Nc5 19.Ra1 Ne6 20.N2b3 c6 21.bc6 Bc6 22.Ra2 Nd4 23.Nd4 Bd4 24.ed4 Qd7 25.Bg4 Qc7 26.Bf3 Ra7 27.Qa1 Rea8 28.Rc1 Qd6 29.Bd1 b5 30.a5 b4 31.Bb3 Bb5 32.Bc2 Qd8 33.Qb2 Ra5 34.Ra5 Ra5 35.Qb4 Qg5 36.Re1 Ra2 37.Bb3 Rd2 38.Qb5 Qf5 39.Rf1 Rd3 40.Qb8 Kg7 41.Qe5 Qe5 42.de5 Rb3 43.Rd1 f6 44.ef6 Kf6 45.h3 Ke5 46.g3 d4 47.Kf1 Ke4 48.Ke2 h5 49.h4 Rb4 50.f3 Ke5 51.Rd3 Rb2 52.Rd2 Rd2 53.Kd2 Kd5 54.Kd3 Ke5 55.f4 Kd5 56.Ke2 Ke4 57.Kf2 d3 58.Ke1 Ke3 59.Kd1 Kf3 60.f5 gf5 61.Kd2 Kg3 62.Kd3 Kh4 63.Ke3 Kg4 64.Kf2 f4 65.Kg2 h4 66.Kg1 f3 67.Kf1 Kg3 68.Kg1 f2 0–1. Phomopsis (1690) – edfork (1745), lichess.org, 2020.

6.0-0 Bd7 7.d3 e6 8.Nbd2 Na6 9.a3 c5 10.c3 cb4 11.cb4 Nc7 12.Qb3 Bb5 13.Rac1 Rc8 14.Nd4 Bd7 15.h3 a6 16.Rc2 Na8 17.Rfc1 Nb6 18.Rc8 Nc8 19.b5 Nb6 20.ba6 Ba4 21.Qc3 ba6 22.Qc7 Qc7 23.Rc7 Rc8 24.Rc8 Nc8 25.N4b3 Nd7 26.Bg7 Kg7 27.d4 Bb5 28.Bb5 ab5 29.Nc5 Nc5 30.dc5 Na7 31.Nb3 Kf6 32.Nd4 Ke5 33.c6 Kd6 34.Kf1 e5 35.Nf3 Nc6 36.Ke2 Kc5 37.Ng5 Nd8 38.Nh7 Kc4 39.Nf6 Nc6 40.f3 d4 41.ed4 ed4 42.Ne4 Kb3 43.Kd3 Ka3 44.Nd6 b4 45.Nc4 Ka2 46.Kc2 b3 47.Kc1 Nb4 48.Nb2 d3 49.Nc4 Nd5 50.Kd2 Nb4 51.Kc1 Nc2 52.Nb2 Nd4 53.Nd3 Ne2 54.Kd2 Nf4 55.Nc1 Kb1 56.Nd3 Ng2 57.f4 Nf4 58.Nf4 Ka2 59.Nd3 b2 60.Nb2 Kb2 61.Ke3 f5 62.Kf4 Kc3 63.h4 Kd4 64.Kg5 Ke4 65.Kg6 f4 66.h5 f3 67.h6 f2 68.h7 f1Q 69.h8Q Qg1 ½–½. Phomopsis (1620) – BrokenBishop (1625), lichess.org, 2018.

6.0-0 h6 7.a3 a6 8.Nc3 (8.d4 Nbd7=) 8...c6 9.Bd3 (9.Na4 Bg4=) 9...Nbd7 (9...Qd6 10.Ne2=) 10.h3 (10.Be2 e5=) 10...e5 11.e4 d4 12.Ne2 Nh7 (12...c5 13.Ng3=) 13.c3 dc3 14.Bc3 f6 (14...Qe7!?=) 15.Qb3+– Kh8 16.Nh4 Qe8 17.f4 ef4?? (better 17...g5 18.fg5 fg5+–) 18.Nf4+– (worse 18.Rf4 g5-/+) 18...Ne5 (18...Rf7 19.Nfg6 Kg8+–) 19.Be5 (19.Be5 Rf7 20.Nfg6 Kg8 21.Bc4+–) 1–0. Pierre – GuestSumer, internet, 2020.

6.a3 b6 7.0-0 Bb7 8.d3 Nbd7 9.Nbd2 Re8 10.c4 dc4 11.Nc4 c5 12.Rc1 Nd5 (12...cb4!? 13.ab4 a5+=) 13.Bg7+= Kg7 14.Qd2 cb4 15.e4 Nc3 16.ab4 Ne2 17.Qe2 Nf6 18.Nce5 Qd6 19.Qb2 Kg8 20.Ng5 Rf8 21.f4 h6? (better is 21...b5!?+/-) 22.Ngf7 Rf7 23.Nf7 Kf7 24.e5 Qd5 (24...Qd7 25.Rfe1 Bd5 26.ef6 ef6+–) 25.ef6 ef6 26.Rc7 Kg8 27.Re1 1–0. aspasio (2855) – phoenixd (2475), net–chess.com, 2014.

6.Na3 a5 7.b5 Bg4 8.c4 dc4 9.Nc4 Qd5 (9...c6 10.Qa4=) 10.Nce5 Nfd7 11.Nd7 (worse 11.Ng4 Bb2 12.Rb1 Bg7=+ (12...Qa2? 13.Qc2+-)) 11...Nd7 (worse 11...Bb2 12.Nf8 Ba1 13.Qa1+-) 12.Bg7 Kg7 13.d4 Bf3 14.Bf3 Qb5 15.Rb1 Qc4 16.Qe2 Qc3 17.Qd2 Qc4 (17...Qd2 18.Kd2 Rab8 19.Bb7+=) 18.Bb7+/- (worse 18.Rb7 Rab8=) 18...Ra7 19.Rc1 Qb4 20.Bc6 Nb6 Black prepares a4 21.Ke2 Qd6 22.Rc5 Attacks the isolani on a5 22...Rd8 23.Qc2 a4 24.h4 h5 (24...h6 25.h5+/-) 25.g3 (25.g4 hg4 26.h5 Qf6+/-) 25...a3 (25...Nd7 26.Rd5 Qe6 27.Rc1+/-) 26.Rc1 f6 (26...Rb8 27.Be4 Na4 28.Rc6+=) 27.Qe4 (27.Be4 Qe6+/-) 27...Kf7 (27...e6 28.Bb5 f5 29.Qc2+/-) 28.Bb5 (better 28.g4 hg4 29.h5 (29.Qg4?! Qe6 30.Qe6 Ke6+/-) 29...gh5 30.Qh7 Kf8 31.Qh8 Kf7 32.Qh5 Kf8 33.Qg4+-) 28...Na4?? (better 28...f5 29.Qc2 Qe6+/-) 29.Rc6 (29.Bc4 e6 30.Rc6 Qc6 31.Qc6 Rd6+-) 29...Qb4 (29...Qd7 30.Rf6!! ef6 31.Bd7 Rd7+-) 30.Bd3 Rg8 (30...Kf8 31.Qg6 Qa5 32.Bc4+-) 31.Bc4 Kf8 (31...Kg7 32.Bg8 Kg8 33.Qg6 Kf8 34.Qh5 Qb2 35.Kf3 Qb7+-) 32.Qe6 (32.Qe6 Qc4 33.R1c4+-) 1-0. Aleksandrov,A (2550) - Grigorjev,Iljya (2375), 43rd Nezhmetdinov Mem, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d5)

6.a4 Bg4 7.h3 Bf3 8.Bf3 Qd6 9.b5 e5 10.0-0 c6 11.bc6 bc6 12.Ba3 c5 13.d4 ed4 14.ed4 Nbd7 15.dc5 Nc5 16.Nd2 Rfe8 17.Rb1 Rac8 18.Nb3 Nfd7 19.Qd5 Qd5 20.Bd5 Nb3 21.cb3 Ne5 22.Rbc1 Nd3 23.Rc8 Rc8 24.Bc4 Ne5 25.Rc1 Bh6 26.Rc2 Bf8 27.Bf8 Kf8 28.Bd3 Rb8 29.Rc3 Nd3 30.Rd3 a5 31.g4 Ke7 32.Kg2 Ke6 33.Rc3 Rb7 34.Rc5 Rb3 35.Ra5 f6 36.Ra7 h6 37.a5 Ra3 38.a6 Ke5 39.Rg7 h5 40.Rg6 hg4 41.Rg4 Ra6 42.f3 Ra2 43.Kg3 Ra8 44.h4 Rh8 45.Rg6 Kf5 46.Rg4 Ke5 47.Ra4 Kf5 48.Ra5 Kg6 49.Kg4 f5 50.Rf5 Rh4 51.Kh4 Kf5 52.Kg3 Kg5 53.f4 Kf5 54.Kf3 Kf6 55.Ke4 Ke6 56.f5 Kf6 57.Kf4 Kf7 58.Kg5 Kg7 59.f6 Kf7 60.Kf5 Kf8 61.Ke6 Ke8 62.f7 Kf8 63.Kf6 ½–½. Abdullaevich – Notjana (1795), lichess.org, 2019.

6.b5 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.0-0 Nb6 11.c4 Nc4 12.Bc4 dc4 13.Qa4 Bf5 14.Ne5 Qa8 15.Nc3 Qa4 16.Na4 Ra8 17.Nc5 Ne4 18.Ne4 Be4 19.Bc3 f6 20.f3 Bf5 21.Ng4 Bd7 22.Rb1 Ra4 23.e4 Bg4 24.fg4 Kf7 25.Kf2 Bh6 26.Rb4 Rb4 27.Bb4 Bf4 28.Kf3 Bh2 29.Kf2 Be5 30.Ke3 e6 31.Kf3 Bd4 32.Ba5 Be5 33.Bb4 Ke8 34.Ba3 Bd4 35.Kf4 Kd7 36.g5 Be5 37.Kg4 f5 38.Kf3 c6 39.bc6 Kc6 0–1. Mittelbachert,Ulrich – Trzaska,Peter, VL Gr. 2 989 (Ruhrgebiet) (9), 1999.

6.b5 Bg4 7.0-0 e6 8.Nd4 Be2 9.Ne2 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 c5 13.bc6 bc6 14.Bf6 Bf6 (14...Qf6 15.d4+=) 15.Nbc3 Nd7 16.Qa1 Qa8 17.f4 Qa1 (17...Rb8 18.Qa8 Ra8 19.Rb1+=) 18.Ra1= Rc8 (18...Rb8 19.Ra7 Bc3 20.Nc3=) 19.Ra7 Nf8 (19...Rd8 20.e4=) 20.Kf2 Bc3 21.Nc3 c5 (21...Kg7 22.e4+=) 22.e4 d4 23.Na4 h5 (23...f6 24.Kf3+=) 24.e5+/- c4 25.Rb7 (25.c3 dc3 26.dc3 Kg7+/-) 25...Rc6 (25...Rd8 26.Nc5+/-) 26.Kf3 Kg7 (26...h4 27.Ke4 d3 28.cd3 cd3 29.Nb2+–) 27.Ke4+– Ra6 (27...d3 28.cd3 cd3 29.Kd3+–) 28.Rb4 (better is 28.Nb6 c3 29.dc3 dc3 30.Nc4+–) 28...Nh7? (better is 28...d3 29.cd3 cd3+/-) 29.Kd4+– Rc6 (29...Ra5 30.Kc4 g5 31.g3+–) 30.Rc4 Rc4 31.Kc4 Kf8 32.Nc5 Ke7 33.Ne4 Nf8 34.Nf6 1–0. Adlai – Etc132, internet, 2019.

6.Qc1 Nc6 7.b5 Nb8 8.c4 dc4 9.Bc4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 c6 13.bc6 Nc6 14.0-0 Qa5 15.Bc3 Qc5 16.Bf6 Bf6 17.Bf7 1–0. Adamkosh (1685) – Chessmonkey1 (1670), lichess.org, 2019.

6.Nc3 Ne4 7.Ne4 (7.Rb1 a5 8.b5 Qd6=) 7...de4 (better 7...Bb2 8.Ng3 Ba1 9.Qa1 Bg4-/+) 8.Nh4?? (better 8.Bg7 ef3 9.Bf8 fe2 10.Qe2 Qf8 11.0-0=) 8...Bb2–+ 9.Rb1 Bf6 10.d3 (10.g3 a5 11.b5 Qd6–+) 10...Bh4 (10...ed3 11.Qd3 Bh4 12.Qc4–+) 11.de4 Qd1 12.Rd1 Nc6 13.g3 (13.a3 Bf6–+) 13...Bf6 14.0-0 (14.a3 Bc3 15.Kf1 Bh3 16.Kg1 Rad8–+) 14...Be6 (14...Bh3 15.Rfe1–+) 15.e5 (15.b5 Nb4 16.f4 Na2–+) 15...Ne5 16.Bf3 (16.a4 a5 17.b5 Nc4–+) 16...Ba2 (better 16...Nf3 17.Kg2 Ne5 18.e4–+) 17.Bb7 Rab8 18.Be4 (18.Ra1 Rb7 19.Ra2 Rd8–+) 18...Rb4 19.f4 (19.Ra1 Rb2–+) 19...Re4 (19...Ng4 20.Ra1 Ba1 21.Ra1 Rb1 22.Rb1 Bb1 23.Bf3 Ne3 24.c3–+) 20.fe5 Be5 21.Rd7 (21.Kf2 Rb4–+) 21...Be6 22.Rc7 (22.Rd3 Bc4 23.Kf2 Bd3 24.cd3 Rb4–+) 22...Ra8 (better 22...Bc7 23.Kg2–+) 23.Rc5 (23.Re7 Re3 24.Rd1 Re2–+) 23...Re3 24.Rb5 Bc4 25.Rb4 Bf1 26.Rf4 Bf4 27.Kf1 Rf3 (27...Rc8 28.c4 Rc4 29.Kg2 Rc2 30.Kf1 Rb3 31.gf4 Rb1) 28.Kg2 Bg3! 29.Kf3 (29.hg3 a5 Passed pawn) 29...Bh2 30.Kg4 Bd6 31.Kg5 Rc8 32.Kg4 (32.Kh4 Rc3 33.Kg5 h6 34.Kg4 f5 35.Kh4 Rc2 36.Kh3 Rh2) 32...Rc2 (32...Rc3 33.Kg5 h6 34.Kg4 f5 35.Kh4 Rc2 36.Kh3 Rh2) 33.Kg5 a6 (33...f5 34.Kh4 Rh2 35.Kg5 Rh5) 34.Kg4 a5 (34...a5 35.Kf3 a4 36.Ke3 a3 37.Kd3 Rb2 38.Kd4 a2 39.Ke3 a1Q 40.Ke4 Qa4 41.Kd3 Bc5 42.Kc3 Qd4; 34...Rf2 35.Kh4 f5 36.Kg5 Bf4 37.Kh4 Rh2) 0–1. Agiant – Dowan, lichess.org, 2018.

6.c4 dc4 7.Bc4 Nbd7 8.d4 Nb6 9.Be2 c6 10.a4 Ne4 11.Nc3 Nd6 12.Nd2 e5 13.de5 Be5 14.Qc2 Bf5 15.e4 Be6 16.Nd1 Bb2 17.Nb2 a5 18.ba5 Ra5 19.Qc3 Qg5 20.0-0 Rfa8 21.Nb3 Ne4 22.Qb4 Bb3 23.Qb3 Nd5 24.Nc4 Nf4 25.Qf3 Nc3 26.Na5 Nfe2 27.Kh1 Qa5 28.Rfe1 Nd4 29.Qf6 Nde2 30.h3 Re8 31.Qf3 Qd5 0–1. Danielian – Zhu Chen, Medellin 1996.

6.d4 c6 7.Nc3 Nbd7 8.0-0 b6 9.a4 a5 10.b5 c5 11.Ne5 Ne5 (11...Qc7!? 12.Nc6 e6=) 12.de5+/- Nd7 (12...Ne4!? 13.Nd5 Bb7+/-) 13.Qd5+– Ra7 14.e6 fe6 15.Qe6 Kh8 16.Rad1 Rf6 17.Qb3 Rd6 18.Rd6 ed6 19.Ne4 Nf6 (19...Ne5 20.Rd1 Qe7 21.Qd5+–) 20.Bf3 (20.Bf6!? Bf6 21.Rd1 d5 22.Rd5 Rd7 23.Rd7 Bd7+–) 20...Ne4 21.Be4 Re7 22.Bg7 Rg7 23.Rd1 Qf6 24.Qd3 Rd7 25.Bf3 Rd8 26.e4 (26.Qd5!? g5+–) 26...Qe5 27.Qd5 Qd5 28.Rd5 Be6 29.Rd2 Rd7 30.Be2 d5 31.ed5 Rd5 32.Rd5 Bd5 33.f3 Kg7 34.Kf2 Kf6 35.Ke3 g5 36.c4 Bb7 37.g3 h5 38.Bd3 g4 39.fg4 hg4 40.Kf4 Bc8 (40...Bf3 41.Bf5 Bd1 42.Bg4 Ba4 43.Ke3+/-) 41.Be2+– Be6 42.Bg4 Bc4 43.Bd1 Bd3 44.Ke3 Bg6 45.h4 Ke5 46.g4 Kd5 (46...Bb1 47.Bb3+–) 47.h5 Bh7 48.g5 Ke5 (48...Bb1+–) 49.g6 Bg8 50.h6 Kf6 51.h7 Bh7 52.gh7 Kg7 53.Bc2 Kh8 54.Kf4 1–0. Gruz,Janos (1800) – Csiba,Tibor, First Saturday FM–B Sep, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d5)

6.d4 Re8 7.0-0 Bg4 8.Nbd2 c6 9.c3 Nbd7 10.Qc2 e5 11.de5 Ne5 12.Ne5 Be2 13.Ndf3 Bf1 14.Rf1 Ne4 15.c4 dc4 16.Qe4 Be5 17.Ne5 f6 18.Qc4 Qd5 19.Qd5 cd5 20.Nd7 Kf7 21.Nf6 h5 22.Ne8 Re8 23.Rc1 Re7 24.Rc5 Ke6 25.a4 Rd7 26.Bd4 b6 27.Rc6 Kf5 28.Rf6 Ke4 29.Rg6 Kd3 30.Rg5 Rc7 31.g3 Ke2 32.Rd5 Kf3 33.Rf5 Ke4 34.Rf4 Kd3 35.Rh4 Ke2 36.Rh5 Kf3 37.Rf5 Ke4 38.Rf4 Kd3 39.Kg2 Rc4 40.Kf3 Rb4 41.h4 Ra4 42.h5 Rc4 43.h6 Rc7 44.h7 Rh7 45.Bf6 Rb7 46.Rd4 Kc2 47.g4 b5 48.g5 b4 49.g6 b3 50.Rc4 Kd3 51.Rc3 Kd2 52.g7 Rb8 53.Rb3 Rb3 54.g8Q a5 55.Qb3 1–0. Adjailton (1815) – Jacintosax (1825), lichess.org, 2020.

6.Bf6 Bf6 7.c3 (7.d4 a5 8.b5 c5=) 7...e5 8.d4 e4 9.Nfd2 Bg7 10.0-0 a6 (10...Qg5 11.f4 ef3 12.Rf3=+) 11.c4= c6 (11...Qg5 12.Kh1 c6 13.Nc3=) 12.cd5 (12.Nc3 Qg5 13.f4 ef3 14.Rf3 Re8 15.cd5 cd5 16.Nd5 Bd4 17.ed4 Qd5=) 12...cd5 (< 12...Qd5 13.a3+/-) 13.Nc3 Nc6 14.a3 Be6 15.Nb3 b6 16.b5 (16.Rc1 Qg5 17.f4 Qe7=) 16...Nb8 (16...ab5 17.Bb5 Na7 18.Ba6=) 17.a4 (17.f3 Bh6 18.Qd2 ab5 19.Nb5 Nd7=) 17...a5 (17...Qg5 18.Kh1=+) 18.Bg4 (18.f3 Qg5 19.Qd2 f5=) 18...f5= 19.Bh3 Nd7 20.g3 (20.Rc1 Rc8=) 20...Nf6 (20...Rc8 21.Rc1=+) 21.Bg2 Qd7 22.Ne2 Nh5 23.Nf4 Nf4=+ 24.gf4 Rac8 25.Nd2 Rc7 26.Qe2 Rfc8 27.Rfd1 Rc2 28.Qe1 Qc7 29.Nf1 Bf8 30.Ng3 Bb4–+ 31.Qf1 Bd2 32.Bh3 Rb2 33.Bg2 Qc2 34.h4 Ra2 35.Ra2 Qa2 36.h5 Rc2 37.hg6 hg6 38.Nh1? Qa4–+ 39.Bh3 Qb3 40.Qg2 Kf7 41.Qg3 Qb5 42.Kh2 Qe2 43.Rb1 Bb4 (44.Bf1 Qh5 45.Kg1 Bd7–+; 43...Be3!? 44.Rb6 Bf2 45.Rb7 Kf8 46.Rb8 Kg7 47.Rb7 Bf7 48.Nf2 Qf2 49.Qf2 Rf2 50.Bg2 Rf4 51.Ra7–+) 0–1. Wartenberg,Erwin – Koellmer,Hans, RH–op Mainz, 1996.

6.h3 a5 7.b5 c5 8.a4 Nbd7 9.d3 Qc7 10.Nbd2 e5 11.e4 b6 12.c4 de4 13.de4 Bb7 14.Qc2 Nh5 15.g3 Bh6 16.h4 Ng7 17.0-0-0 Ne6 18.Kb1 Rfd8 19.h5 g5 20.Nh2 Nd4 21.Qd3 Nf6 22.Ng4 Ng4 23.Bg4 Nb5! 24.Qe3 Nd4 25.Rhe1 Bc6 26.Qa3 Qe7 27.Nf1 Qe8 28.Rc1 Bg7 29.Bd1 Qd7 30.g4 Ne6 31.Bc2 Qb7 32.f3 Nd4 33.Bd1 Rd6 34.Ne3 Rad8 35.Nd5 Bd5 36.ed5-/+ h6 37.Qd3 Qd7 38.Bc2 Kf8 39.Re3 Re8 40.Rce1 Qc8 41.Qh7 Qd7 (worse is 41...Nc2 42.Re5 Ne1 43.Qg7 Kg7 44.Re8 f6 45.Rc8 Nf3 46.Kc2=) ½–½. Gelashvili,T (2610) – Shishkin,Va (2505), II ROMGAZ Open, Bucharest ROU, 2008.

6.0-0 a5

7.b5 c5 8.d3 b6 9.Nbd2 Bb7 10.c4 e6 11.Qc2 Nbd7 12.a3 Qc7 13.h3 Rfe8 14.a4 Rad8 15.Rac1 Qb8 16.Rfe1 Qa8 17.Qb3 Re7 18.Red1 Rde8 19.Qa3 e5 20.cd5 Nd5 21.Nc4 Qb8 22.Ng5 f5 23.Qb3 N7f6? (better is 23...h6 24.Ne4 Re6=) 24.Nb6+– Kh8 (24...Qd8 25.Nc4+–) 25.Nc4 Nb4 (25...Qc7 26.Be5 Re5 27.Ne5 Re5 28.d4+–) 26.Be5 (26.Be5 Qa8 27.Nf3+–; worse is 26.Na5 Bd5 27.Nc4 Ra7+–) 1–0. marekt – Odensboldklub, chessworld.net, 2015.

7.b5 Nbd7 8.a4 Ne4 (8...Nb6 9.Bd4=) 9.Bg7+= Kg7 10.d3 Nd6 11.c4 dc4 12.dc4 Nf6 13.c5 Nf5 (13...Nde4!? 14.Qc2 Qd5+=) 14.Qc2+/- Qd5 15.Rd1 Qe4 16.Rd3 Nh4 17.Nbd2 Nf3 18.Bf3 (18.gf3?! Qe5 19.Rd1 Qg5 20.Kh1 Qh4=) 18...Qe5 19.Rd4 Rb8 20.Rd1 b6 21.cb6 cb6 22.Rc1 Be6 23.Bc6 Rbd8 24.Nf3 Qb8 25.Qb2 Kg8 26.Rcd1 Rd4 27.Qd4 Bg4 28.h3 Bf3 29.Bf3 Qc7 30.Bc6 Qb8 31.e4 Qc7 (31...e5 32.Qd6 Kg7 33.Qd3+=) 32.e5 Nh5 33.f4 (33.Qe3 f6+/-) 33...Qb8 34.Rd3 Ng7 35.Qd7 Ne6 36.Qe7 Nf4 37.Rd6 Qc8 38.Rf6 Nh5 39.Rf3 Qd8 40.Qd8 Rd8 41.Rc3 Ng7 42.Bf3+= Ne6 43.Rc6 Rb8 44.Bd5 Nf4 45.Bc4+/- Rb7 46.Kf2 Kg7 47.Kf3 g5 48.h4 Ng6+= 49.Ke4 Ne7? 50.Rf6+– Ng8 51.Rd6 gh4 52.Bd5 Rb8 53.Rd7 Nh6 54.e6 Re8 55.Kf4 Rf8 56.Rb7 Kg6?? 57.e7 Rc8 58.Bc6 Nf5 1–0. Mamuzic,Mirko (2265) – Jovicic,Aleksandar (2060), Subotica City–ch, 2008.

7.b5 Nbd7 8.d4 c6 9.a4 cb5 10.Bb5 Nb6 11.Nbd2 Bd7 12.Qe2 Bb5 13.Qb5 Qc7 14.Rfc1 Rfc8 15.Ne5 Ne4 16.Ne4 de4 17.Qb3 Nc4 18.Nc4 Qc4 19.Qc4 Rc4 20.Ba3 Bf6 21.Bc5 Rb8 22.Bb6 Rbc8 23.Ra2 Ra8 24.Kf1 Kf8 25.Ke2 Ke8 26.Kd2 Kd7 27.c3 Kc6 28.Rb1 Ra6 29.Bc5 e5 30.Bf8 ed4 31.cd4 Bg5 32.g3 Rd4 33.Kc3 Rd3 34.Kc2 Kc7 35.Bg7 Rc6 36.Kb2 Rd2 37.Ka1 Ra2 38.Ka2 Rc2 39.Rb2 Rb2 40.Kb2 Kc6 41.Bd4 Kd5 42.Kc3 Bd8 43.Kb3 f5 44.Kc3 h6 45.Kb3 h5 46.Kc3 g5 47.Kb3 h4 48.Kc3 hg3 49.hg3 Bc7 50.Bf6 g4 51.Bd4 Be5 52.Be5 Ke5 53.Kc4 Kd6 54.Kb5 Kc7 55.Ka5 Kc6 56.Kb4 b6 57.Kc4 Kd6 58.Kb5 Kc7 59.Kc4 Kc6 60.Kd4 Kd6 61.Kc4 Kc6 62.Kd4 Kd6 63.Kc4 Kc6 ½–½. Orang4Utan (1770) – OlivenWan (1745), lichess.org, 2017.

7.c3 ab4 8.cb4 Re8 9.d3 Nbd7 10.Nbd2 e5 11.Qb3 c6 12.Rfd1 Ng4 13.h3 Nh6 14.a3 Kh8 15.Qc3 Nf5 16.Qc2 Nd6 17.Nf1 f5 18.Rac1 Qe7 19.Qb3 Nf6 20.Ne5 Nd7 21.Nd7 Bb2 22.Qb2 Qg7 23.Nc5 Qb2 0–1. Phomopsis (1705) – Tidinator (1735), lichess.org, 2019.

7.c3 ab4 8.cb4 Bg4 9.d3 Nbd7 10.Nbd2 Nb6 11.h3 Bf3 12.Nf3 Na4 13.Bf6 Bf6 14.d4 c5 15.bc5 b6 16.cb6 Qb6 17.Qb3 Qd6 18.Rfb1 Rfb8 19.Qd1 Nc3 20.Qc2 Nb1 21.Rb1 Rb1 22.Qb1 Qa3 23.Qb7 Qa2 24.Bb5 Rf8 25.Bc6 e6 26.Qc7 Qc4 27.Qb6 Rc8 28.Bd7 Bd8 29.Qb1 Qc1 30.Qc1 Rc1 31.Kh2 Bc7 32.g3 Kf8 33.Kg2 Ke7 34.Ba4 h5 35.h4 Ra1 36.Bb5 Ra2 37.Bd3 Ba5 38.Ne5 Be1 39.Nc6 Kf6 40.Ne5 Bf2 41.Kf3 Be1 42.Nd7 Ke7 43.Ne5 Rf2 0–1. Phomopsis (1645) – alcottdive (1685), lichess.org, 2019.

7.c3 Ne4 8.d3 Nd6 9.a3 b5 10.Nbd2 Nd7 11.Qc2 Nb6 12.Rfd1 Na4 13.h3 Nb2 14.Qb2 a4 15.Rab1 e5 16.Qc2 Qe7 17.c4 bc4 18.dc4 Bf5 19.Bd3 e4 20.Ne4 de4 21.Be4 Be4 0–1. Phomopsis (1645) – Kyloiron (1650), lichess.org, 2019.

7.b5 c5

8.a4 Nc6 9.h3 Nb8 10.c4 e6 11.cd5 ed5 12.Qc2 Nbd7 13.d4 c4 14.Nc3 Nb6 15.Ba3 Re8 16.Nh2 Bf5 17.Qd1 Ne4 18.Rc1 Be6 19.Ne4 de4 20.Qc2 Rc8 21.Ng4 c3 22.Rfd1 Nd5 23.Rb1 f6 24.Nh2 h5 25.Nf1 f5 26.Rdc1 Qd7 27.Ng3 b6 28.Bh5 gh5 29.Nh5 Qf7 30.Ng3 f4 31.Ne4 Bf5 32.f3 Ne3 33.Qf2 Be4 34.fe4 Bd4 35.Kh1 Nf5 36.Qf4 Be3 37.Qg4 Qg7 38.Qf5 Bc1 39.Rc1 c2 40.Qf2 Qc3 41.Bd6 Qd3 0–1. Abdullaevich – udrzec (1870), lichess.org, 2018.

8.c4 e6 9.d4 Ne4 10.Nbd2 b6 11.Qc2 Bb7 (11...Nd2 12.Qd2 dc4 13.Rfd1+=) 12.Rfd1 cd4 13.Ne4 de4 14.Bd4?? (better 14.Nd4 Qc7 15.Nb3+=) 14…ef3-+ (14...ef3 15.Bf3 Bf3 16.gf3 e5-+) 0-1. Curic,D (2100) - Stocko,J (2315), Solta Amateur Open, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d5 6.0-0 a5)

8.bc6 bc6 9.d4 Ba6 10.Nbd2 Nbd7 11.c4 c5 12.Rc1 Rc8 13.Re1 e6 14.Ba3 Re8 (14...Qb6 15.Nb3 Bc4 16.Bc4 dc4 17.Rc4 cd4 A) worse is 18.Bf8 Rc4 19.Bg7 de3 (19...Kg7?! 20.Nbd4 e5 21.Nb3=) 20.Re3 Kg7-/+; B) 18.Rd4+/-) 15.cd5 Be2 16.Qe2 (16.Re2?! Nd5 17.Ne4 cd4 18.Rc8 Qc8 19.Nd4 Qa8=) 16...Nd5 17.dc5 Nc3 18.Qc4 Nb6 19.Qb3 Nba4 20.Nd4 Bd4 21.ed4+– Qd4 22.Nf3 Qd3 23.Re3 Ne2 24.Re2! Qe2 25.Qa4 Qa2 26.c6 Qd5 27.c7+– e5 28.Bb2 f6 29.Ba3 Red8?? 30.Rd1 Qa2 31.h3 Qe6?? 32.Rd6 Qf7?? 33.Qc6 Qa2?? 34.Qa8 Ra8?? 35.Rd8 (35.Rd8 Kf7 36.Ra8 Qb1 37.Kh2+–; worse is 35.cd8R Rd8 36.Rd8 Kf7 37.Rd7 Ke8 38.Re7 Kd8-/+; worse is 35.cd8Q Rd8 36.Rd8 Kf7 37.Rd7 Ke8 38.Re7 Kd8-/+) 1–0. Kozlowska,Marzena – Halamus,Agata, Poland–ch U16 Girls, 2002.

8.d3 a4 9.c4=.

8.d3 b6 9.Nbd2 Nbd7 10.h3 (10.c4 a4=) 10...Qc7 11.c4 e6 (11...Bb7 12.Qa4=) 12.a4 (12.cd5 ed5 13.Rc1 a4=) 12...Bb7 13.Qc2 Rad8 14.Rad1 Nh5 (14...Qd6 15.d4=) 15.Bg7+= Ng7 16.Rfe1 (16.cd5 Bd5 17.d4 Rc8+=) 16...Ne5 17.Ne5 (17.cd5 Nf3 18.Nf3 Bd5+/-) 17...Qe5 18.Nf3 Qc7 (18...Qf5 19.Qc3=) 19.Qc3 (19.cd5 Rd5 20.d4 Rc8+=) 19...dc4 (19...d4 20.ed4 Bf3 21.Bf3 Rd4 22.Re4=) 20.dc4+= Bf3 21.Bf3 Rd1 22.Rd1 Rd8 23.Rd8 Qd8 24.Qe5 Ne8 25.g4 Qd6 26.Qe4 Nf6 27.Qa8 Kg7 28.Be2 Qd2= 29.Qf3 Nd7 30.g5 Qd6 31.Kg2 f5 32.Qb7 e5 33.f4 e4 34.Qd5 Qd5 35.cd5+= Kf8 36.Bc4 Ke7= 37.Kf2 Kf7 38.Ke2 Kg7 39.Kd2 h6 40.h4 hg5 41.hg5 Kf7 42.Kc3 Ke7+= 43.Kb3 Kd6 44.Kc3 Nf8 45.Kd2 (45.Kc2 Nd7+=) ½–½. Schirmer – Tare, corr, 1995.

7.b5 c6

8.a4 c5 9.c4 b6 10.Nc3 d4 11.ed4 cd4 12.Nb1 d3 13.Bd3 Qd3 14.Ne5 Qd8 15.d4 Bb7 16.d5 Nbd7 17.Nc6 Bc6 18.dc6 Nc5 19.Qc2 Qc7 20.Nc3 e6 21.Rad1 Rad8 22.Ba3 Qe5 23.Rfe1 Qf5 24.Qf5 ef5 25.Bc5 bc5 26.b6 Ne4 27.Nb5 Nc3 28.Nc3 Bc3 29.Rf1 Bd4 30.b7 Be5 31.Rb1 Rd4 32.Rb5 Rc4 33.Ra5 Rb4 34.Ra8 Rb8 35.a5 Kg7 36.a6 c4 37.a7 R8b7 38.cb7 Rb7 39.Rc1 c3 40.Kf1 Bd4 41.Rd8 Ba7 42.Rc3 Rb1 43.Ke2 Rb2 44.Kd3 Bf2 45.Rd7 Rb6 46.Rcc7 Rf6 47.Ke2 Bb6 48.Rb7 Bc5 49.Kf3 g5 50.g4 fg4 51.Kg4 Be3 52.Re7 Bd2 53.Red7 Be3 54.Rd3 1–0. Orang4Utan (1830) – mliu (1990), lichess.org, 2017.

8.a4 Nbd7 9.c4 Re8 10.d4 Ne4 (10...cb5 11.ab5 dc4 12.Nbd2+=) 11.Nbd2 (11.Nc3 Ndf6+=) 11...Nd2 12.Nd2 e5 13.cd5 cd5 14.Nb3 Nb6 (14...e4 15.Qd2+=) 15.de5+/- Be5 (15...Nc4 16.Bd4+/-) 16.Be5 Re5 17.Nc5 (17.Qd2 Qh4+/-) 17...Qe7 (17...Qh4 18.Re1+/-) 18.Qd4 Nc4 19.Bf3 Nd2 (19...Be6 20.Rfc1 Rf5 21.Be2+/-) 20.Qd2 Qc5 21.Rac1 Qb4 (21...Qd6 22.Rc3+/-) 22.Qd4 Qd4 23.ed4 Re8 (23...Re7 24.Bd5 Be6 25.Be6 fe6 26.Rc4+/-) 24.Rc7 (24.Bd5 Rd8 25.Rc5 Rb8+–) 24...Rd8 25.Re1 (25.b6 Rb8+/-) 25...b6+/- 26.g4 (26.Rec1 Bf5+/-) 26...Be6 27.Kg2 (27.g5 Rac8 28.Rec1 Rc7 29.Rc7 Bh3+/-) 27...Rac8 28.Rc6 Bd7 (better is 28...Rc6!? 29.bc6 Rc8+/-) 29.Rb6+– Be6 (29...Rc4 30.Rd6 (30.Bd5?! Rd4 31.Bf3 Bg4+=) 30...Kf8 31.Rd5 Ra4 32.g5+–) 30.Ra6 Ra8 (30...Rc4 31.Ra5 Rd4 32.h3+–) 31.Rc6 Rdc8 (31...h6 32.Kg3+–) 32.Rc5 Kf8 (32...Kg7 33.Rb1+– (33.Bd5?! Rc5 34.Ba8 Rc4+–)) 33.b6 (33.g5 Rab8+–) 33...Rab8 (33...Rcb8 34.Rb1 Ra6 35.b7+–) 34.Kg3 (34.Rb1 Ke7 35.Ra5 Rc4+–) 34...Rd8 (34...Rb7 35.g5+– (35.Ra5?! Rb6 36.Bd5 Rb4+–)) 35.Rb1 Rd6 36.b7 (36.Ra5?! Rbb6 37.Rb6 Rb6 38.Bd5 Rb4+–) 36...Rd7 (36...Ke7 37.Ra5 Kd8+–) 37.Rc8 Rd8 38.Rd8 (38.Rd8 Rd8 39.b8Q Rb8 40.Rb8 Ke7 41.Rb5+–) 1–0. Janek – Vassileos, internet free game, 2017.

8.Nc3 Ne4 9.Na4 Nf6 10.Nc3 a4 11.a3 Ne4 12.d4 Nc3 13.Bc3 Bd7 14.Rb1 cb5 15.Bb5 Bb5 16.Rb5 Qd7 17.Qb1 Qc6 18.Ba1 Nd7 19.Rb7 Rfb8 20.Rb4 Rb4 21.ab4 Nb6 22.b5 Qc7 23.Qa2 e6 24.Rb1 Rc8 25.c3 f6 26.e4 Qc4 27.Qc4 Nc4 28.ed5 ed5 29.Rb4 a3 30.Rb3 Rb8 31.g3 Rb6 32.Kf1 Bf8 33.Ke1 Nd6 34.Ra3 Rb5 35.Ra8 Rb1 36.Ke2 Nc4 37.Nd2 Rh1 38.Nc4 dc4 39.d5 Kf7 40.h4 Rb1 41.Ra7 Kg8 42.Ra2 Bc5 43.f4 f5 44.Ra8 Kg7 45.Ra5 Bb6 46.Ra6 Kh6 47.d6 Kh5 48.d7 Bd8 49.Ra8 Bf6 50.Rf8 Be7 51.Rf7 Bd8 52.Rh7 Kg4 53.Rh8 Ra1 54.Rd8 Ra7 55.h5 Kg3 56.hg6 Ra2 57.Ke3 Ra1 58.g7 (Black forfeits on time, 1–0). Bonetti,Shane – guest237, ICC, 2002.

6.0-0 a6

7.a4 b6 8.c4 Bb7 9.d4 dc4 10.Bc4 Nd5 11.Qb3 Nc6?? (11...e6 12.e4 Nf6 13.e5+=) 12.Ba3?? (better is 12.Bd5 Nd4 13.Bf7 (13.Nd4?! Bd5 14.Qc2 e5+–; worse is 13.Bd4 Bd5 14.Qb2 Bd4 15.Nd4 e5+–; 13.ed4?! Bd5 14.Qc3 Bf3 15.Qf3 c5+–) 13...Rf7 14.Nd4+– (14.Bd4?! Bf3 15.Bg7 Bg2 16.Kg2 Kg7+–; 14.ed4?! Bf3 15.gf3 Bd4+–)) 12...e6+= 13.Nbd2 Nce7 14.Rac1 Nf5? (14...Qd7 15.e4 Nf6 16.Bd3+=) 15.Rfd1 (better is 15.e4!? Nd4 16.Nd4 Bd4 17.ed5+–) 15...Nfe7 16.Ne5 Be5 17.de5 Qc8 18.Nf3 c6 19.Nd4 Qc7 20.f4 Rfd8 21.Kf2 Rab8 22.g4 c5 23.Nc2 cb4 24.Nb4 Nb4 25.Bb4 Rd1 26.Rd1 Nd5? 27.Bd5 Bd5+/- 28.Qc3?? Rc8 29.Qc7 Rc7 30.Rd2 Rc4 31.Rb2 a5 32.Be7 Rc6 33.Ke2 Bc4 34.Kd2 Ba6 35.e4 h5 36.h3 hg4 37.hg4 1–0. bratek55 (1700) – vihor13, kurnik, 2011.

7.a4 Bd7 8.h3 Nc6 9.b5 ab5 10.ab5 Ra1 11.bc6 Ra7 12.cd7 Nd7 13.Bg7 Kg7 14.Nc3 c6 15.Nh2 e5 16.d4 ed4 17.Qd4 1–0. Abdullaevich (1750) – Kliper (1735), lichess.org, 2020.

7.a4 Bf5 8.d4 Nc6 9.Ba3 Ne4 10.c4 e5 (better 10...dc4!? 11.Bc4 Nd6=) 11.b5+/- ed4 (better 11...Ne7!? 12.Ne5 Re8+/-) 12.ed4 (12.ed4 Ne7 13.ba6 ba6 14.Ne5=) 1-0. Mely (2230) - life_skillZ (2140), ChessWorld.net, 2017.

7.c4 c6 8.Nc3 Bg4 9.h3 (better is 9.c5!?+=) 9...Bf3-/+ 10.Bf3 e6 (better is 10...dc4!? 11.Qc2 Qd3-/+) 11.cd5 ed5 12.Ne2 Nbd7 13.Qc2 Re8 14.Bd4 Ne4 15.Be4 de4 16.Bg7 Kg7 17.d3 ed3 18.Qd3 Kg8 19.Rfd1 Ne5 20.Qc3 Qe7 21.Ng3 h5 22.Rd2 Qe6 23.Rad1 Qf5?? (better is 23...Qc4 24.Qb2 Qe6+/-) 24.Nf5+– (24.Nf5 gf5 25.Qc2+–) 1–0. iwan19999 (1705) – ws56, kurnik, 2012.

7.d3 b5 8.a3 Nbd7 9.c4 dc4 10.dc4 bc4 11.Bc4 Bb7 12.Nbd2 c5 13.bc5 Nc5 14.Rc1 Nd3 15.Rc2 Nb2 16.Rb2 Ng4 17.Rb7 Rb8 18.Rb8 Qb8 19.Nd4 Qh2 0–1. Phomopsis (1745) – zajim66 (1625), lichess.org, 2019.

7.d3 b5 8.Nbd2 Bb7 9.Nb3 Nbd7 10.d4 c6 11.Nc5 Qc7 12.a4 Rfe8 13.Bd3 Nb6 14.a5 Nc4 15.Bc4 (15.Nb7? Nb2 (15...Qb7?! 16.Bc3=) 16.Qc1 Nd3 (16...Qb7?! 17.Qb2 Nd7 18.c3=) 17.cd3 Qb7–+) 15...dc4 16.Ne5 Nd5 17.f4?? (better is 17.e4!? f6 18.Ng4+/- (18.Nb7?! Qb7 19.Ng6 Nb4+=)) 17...Nb4?? (better is 17...Ne3!? 18.Qf3 Nc2–+) 18.Ba3 Nd5+= 19.Qd2 f6 20.Nf3 e5 21.fe5= fe5 22.de5 Be5 23.Ne5+/- Qe5 24.Rae1 Bc8= 25.Qd4? b4 26.Bb2 c3 27.Bc1? Bf5?? 28.Qe5 Re5-/+ 29.Rf2? Rae8 30.Na6 Ne3?? 31.Be3 Re3 32.Re3 Re3 33.Nb4 Re1 34.Rf1 Re4 35.Nc6 Ra4 36.Rc1 Be4+= 37.Ne7 Kg7 38.Nc8 Ra5 39.Kf2 Ra2 40.Nd6 Rc2 41.Rc2= Bc2 42.Ke1 Bb3 43.Nb5 Kf6 44.Nc3 Ke5 45.Kf2 Kd4 46.Ne2 Ke4 47.Ng3 Kf4 48.Ne2 Kg4 49.Nd4 Bc4 50.h3 Kg5 51.Ke3 Kf6 52.g3 Ke5 53.Nf3 Kd5 0–1. bratek55 (1725) – vihor13, kurnik, 2012.

7.d3 b6 8.Nbd2 Bb7 9.c4 dc4 10.Nc4 b5 (10...Nbd7!?=) 11.Na5+/- Bc8 12.Rc1 c6 13.Qc2 e6 14.Nc6 Nc6 15.Qc6 Bd7 16.Qd6?? (16.Qc3 a5+/-) 16...a5?? (better is 16...Ne8 17.Qf4 Bb2–+) 17.a3?? (17.ba5 Ne8 18.Qb4 Qa5 19.Qa5 Ra5 20.Bg7 Kg7+/-) 17...ab4?? (better is 17...Ne8!? 18.Qf4 Bb2 19.Rb1 Ba3 20.ba5–+) 18.ab4?? Ra2?? 19.Bf6 Bf6 20.Rfe1 Be7 21.Qd4 Bf6 22.Qd6 Bc8 23.Qd8 Rd8 24.d4 Bd7 25.Ne5 Be8 26.Nc6 Rda8 27.Bb5+– Kf8 28.Ne5?? Bb5–+ 29.Rc5 Be8 30.b5 Be5 31.de5 Rb2 32.f4?! Bb5 33.Rec1 Bd3 34.Rc8 Rc8 35.Rc8 Kg7 36.g3 Be4 37.h4 Rg2 38.Kf1 Rg3 39.h5 Re3 40.hg6 hg6 41.f5 Bf5 0–1. bratek55 (1625) – lisijs1 (1750), kurnik, 2011.

7.d3 Nc6 8.a3 Re8 9.Nbd2 e5 10.c4 e4 11.de4 de4 12.Nd4 Nd4 13.Bd4 Be6 14.Qc2 b6 15.Rad1 Qe7 16.c5 b5 17.h3 (17.Ne4 Ne4 18.Qe4 Bb3 19.Qe7 Re7+/-) 17...Red8 (17...Bd5 18.a4=) 18.Nb3 (better is 18.Ne4!? Ne4 19.Qe4+/-) 18...c6 19.Na5 Qc7 20.Qb2 Ne8 21.Bg7 Ng7 22.Rd8 Rd8 23.Rd1 Rd1 24.Bd1 Qd7 25.Be2 Nf5 26.Bg4 Ne7 27.Be6 Qe6 28.Nb7 Nd5 29.Nd6 Qf6 30.Qc2 Qe5?? 31.Qe4+– Qa1? 32.Kh2 Qa3 33.Qe8 Kg7 34.Qf7 Kh6 35.Qf8 Kh5 36.g4 Kg5 37.Ne4 Kh4 38.Qh6# 1–0. ejdrzej (1685) – judochess, kurnik, 2012.

7.d3 Nc6 8.a3 Bf5 9.Nbd2 Nd7 (9...Qd7 10.Re1=) 10.Bg7+= Kg7 11.c4 dc4 12.Nc4 e5 13.Rc1 Re8 (13...Qf6 14.Nfd2+=) 14.Qb3 (14.d4 ed4 15.Nd4 Nd4 16.Qd4 Qf6 17.Qf6 Nf6+=) 14...Be6 15.Qb2 e5 becomes the focus of attention 15...Bd5 16.Ncd2 (16.e4 Bc4 17.dc4 Nf6+=) 16...Qf6 17.Ne4 Qd8 18.Rfd1 f5 (18...Qe7 19.Nc3 Nb6 20.d4+=) 19.Nc3+– Nb6 Black prepares the advance e4 20.Nd5 Nd5 21.d4 e4 22.Ne5 Qf6 (22...Nce7 23.Bc4+–) 23.Rc5 (23.Nc6!? bc6 24.Bc4+–) 23...Nce7+= 24.g3 (24.Qc2 Rad8+=) 24...Red8 25.h4 (25.Rdc1 Rd6+=) 25...b6 26.Rcc1 h5 (26...c6 27.h5=) 27.Qd2 Rac8 (better 27...g5!? 28.hg5 Qg5+=) 28.Ba6+– Ra8 29.Qe2 (29.b5 c5+–) 29...Rd7?? (better 29...g5 30.Bb7 Ra3 31.Qh5 gh4 32.Bd5 Nd5+–) 30.Nd7+– (30.Nd7 Qd6 31.Ne5+–) 1–0. Guest – GuestMaerk, internet, 2020.

7.d4 c6 8.Nbd2 Nbd7 9.c4 Re8 10.Rc1 Ne4 11.Ne4 de4 12.Nd2 f5 13.Qb3 Kh8 14.a4 e5 15.de5 Ne5 16.b5?? (better is 16.Rfd1 Qf6 17.Bd4+=) 16…Qd2–+ (16...Qd2 17.Rc2 Qa5–+) 0–1. tadziczek – anrybnik, kurnik, 2012.

7.d4 Nc6 8.a3 e6 9.Nbd2 Ne7 10.c4 c6 11.Qb3 Nh5 12.Rfc1 f5 13.cd5 ed5 14.a4 f4 15.e4 Kh8 16.e5 Be6 17.b5 ab5 18.ab5 Ra1 19.Ra1 h6 20.Ba3 g5 21.Bd6 g4 22.Ne1 Rg8 23.Bd3 f3 24.g3 Nf5 25.Qb4 Bf8 26.Bf8 Rf8 27.Nc2 Nhg7 28.Nb3 h5 29.Nc5 h4 30.bc6 bc6 31.Ra7 hg3 32.hg3 Ng3 33.fg3 Qg5 34.Ne6 Qc1 35.Kf2 1–0. Orang4Utan (1840) – Ahmeddbk (1830), lichess.org, 2018.

7.Ne5 Ne4 8.d4 f6 9.Nd3 b6 10.Nd2 Nd2 11.Qd2 Bb7 12.Rfc1 (12.Bf3 Bc6+=) 12...Re8 13.c4 dc4 14.Rc4 e5 15.Qc2 Re7 16.de5 fe5 17.Ne5 (better 17.e4+/-) 17...b5?? (17...Be5 18.Rd1 Bd5+/-) 18.Rd1+- Qd1 (18...Qe8 19.Rc7 Be5 20.Qb3 Kf8 21.Be5 Rc7 22.Bc7 Nd7+-) 19.Qd1 bc4 (19...Bc6 20.Rc6 Nc6 21.Nc6 Rf7+-) 20.Qd8 Bf8 21.Bc4 Kg7 (21...Rf7 22.Nf7 h6 23.Ng5 Bd5 24.Qd5) 1-0. marekt – mizuzul, ChessWorld.net, 2021.

6.0-0 b6

7.a4 c5 8.b5 a6 9.c4 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Bb7 13.d3 Bd5 14.Nbd2 Bc4 15.Nc4 Qc7 16.Nfe5 Nbd7 17.Nc6 Re8 18.Qf3 e5 19.N6e5 Ne5 20.Ne5 Re5 21.Be5 Qe5 22.Qc6 Ng4 23.g3 Qh5 24.h4 g5 25.Qd5 Nf6 26.Qg5 Qg5 27.hg5 Nd5 28.Ra1 Ba1 29.Kg2 Nc3 30.Kf3 Nb5 31.Kf4 Kg7 32.e4 Nd4 33.Ke3 b5 34.f4 b4 35.e5 b3 36.Kd2 b2 0–1. Adjailton (1860) – pop1000 (1760), lichess.org, 2020.

7.Nc3 c5 8.bc5 bc5 9.Ne5 Nfd7 10.Nd3 Ba6 11.Rb1 e6 12.Nf4 Qa5 13.a4 Rc8 14.Nb5 Bb2 15.Rb2 Nb6 16.c4 (16.Nc3 d4 (16...Na4? 17.Qa1+–) 17.Ba6 Qa6+= (17...Na6?? 18.Rb5 Qb4 19.Rb4 Nb4 20.Ne4+–)) 16...dc4 (16...Qa4!? 17.cd5 Qd1 18.Rd1 e5=) 17.Nc3= N8d7 18.Qc2 Rd8 19.Rfb1 Ne5 20.Ne4 Rac8 (worse is 20...Qa4 21.Qa4 Na4 22.Ra2+/-; worse is 20...Na4 21.Ra2 Bb5 22.Nc5+/-) 21.Qd1 Nd5 (worse is 21...Na4 22.Ra2 Bb5 23.Rb5 Qb5 24.Ra4+=; worse is 21...Qa4 22.Qa4 Na4 23.Ra2+/-) 22.Qc2 (22.Nd5 ed5 23.Ng5 d4-/+) 22...Nf4-/+ 23.ef4 Nd3 24.Bd3 cd3 25.Qc3 Qc3 26.Nc3 f6 27.f3 h6 28.Kf2 Kf8 29.h4 Ke7 30.Rb3 Rc6 31.R3b2 Rd4 32.g3 Rd8 33.h5 gh5 34.Rh1 Kf7 35.Rh5 Kg6 36.g4 Rb6 37.Rb6 ab6 38.a5 f5 39.ab6 Rd4 40.Rh1 Bb7 41.gf5 ef5 42.Re1 Kf6 43.Re8 Rf4 44.Rb8+= Bc6 45.Rc8 Bf3 46.Ke3 Bb7 47.Nd5 Ke5 48.Re8 Kd5 49.Kf4 Kc6 50.Re6 Kb5 51.Kf5 Bc6 52.Rh6 Kb6 53.Ke5 Kb5 54.Rd6 Bg2 55.Rd3 Kb4 56.Rc3 ½–½. Geiger,Walter (2050) – Wlasow,Andrey (2220), IECG, 2006.

7.c4 c6 8.a4 a6 9.Na3 (9.d4 dc4 10.Bc4 Bf5+=) 9...Bb7 (9...Qd6 10.Qb3=) 10.Rc1 Nbd7 11.Qb3 Re8 12.d4 e5 13.de5 Ng4 (13...Ne4 14.Qd3+/-) 14.cd5 cd5 15.e6 (15.Nd4 Nde5 16.Rc2 Qd6+=) 15...fe6+= 16.Bg7 Kg7 17.Qc3 Ngf6 18.Qc7 Rb8 19.Qd8 Red8 (worse 19...Rbd8 20.Rc7 Ba8 21.Ba6+-) 20.Nd4 Re8 21.Rc7 Kf7 22.g4 Rec8 (22...e5 23.g5 ed4 24.gf6+=) 23.Rb7!+/- Rb7 24.Ba6 Rbb8 25.Bc8 Rc8 26.Nab5 Ke7 27.f3 e5 28.Nb3 (28.g5 ed4 29.gf6 Kf6 30.Nd4 Rc3+=) 28...Rc4= 29.Na7 (29.a5 Nb8 30.g5 Ne8=) 29...Nb8 (29...Ke6 30.Rb1 g5 31.Nb5+=) 30.Ra1 White prepares the advance a5 30...Rb4 31.Nc1 Nfd7 32.Kf2 (32.Nd3 Rc4=+) 32...Ke6 33.h4 Nc5 34.a5 ba5 35.Ra5 Nbd7 36.Ra2 (36.Nb5 d4 37.ed4 ed4=+) 36...Nb6 (36...h5 37.gh5 gh5 38.Kg3-/+) 37.Rc2 Rc4 38.Rc4 Nc4 ½-½. Haubro,S (2080) - Gregersen,Hedin (1725), Xtracon Chess Open, 2019.

7.d3 c5 8.c3 Nbd7 9.Nbd2 e5 10.bc5 bc5 11.Qa4 e4 12.de4 de4 13.Ne1 Nd5 14.Qe4 Nc3 15.Bc3 Bc3 16.Rd1 Nf6 17.Qa8 Bd2 18.Qa7 Ne4 19.Bf3 Nc3 20.Ra1 Bf5 21.Qc5 Bd3 22.Nd3 Qd3 23.Qe5 Ne2 24.Be2 Qe2 25.Qb2 Rd8 26.Qb6 Rc8 27.Rad1 Rc2 28.Qd4 Bc3 29.Qd3 Bf6 30.Qe2 Re2 31.Rd3 Ra2 32.Rd6 Kg7 33.Rfd1 h5 34.Rc6 h4 35.g3 hg3 36.hg3 g5 37.Rdd6 Be5 38.Rd5 f6 39.f4 gf4 40.ef4 Ra1 41.Kf2 Ra2 42.Ke3 Bb8 43.Rd7 Kg6 44.Kf3 Ra3 45.Ke4 Ra4 46.Rd4 Rd4 47.Kd4 Kf5 48.Rc3 Kg4 49.Rb3 Ba7 50.Ke4 f5 51.Ke5 Bf2 52.Rd3 Bc5 53.Kd5 Bb6 54.Ke5 Bc7 0–1. Phomopsis (1735) – Franjo_959 (1725), lichess.org, 2020.

7.d4 Bb7 8.Nbd2 Nbd7 9.Nb3 Ne4 10.b5 (10.Nfd2 Nd6=) 10...Rc8 11.c4 (11.a4 c5=) 11...dc4 12.Bc4 Nd6 13.Bd3 e6 (13...c5 14.bc6 Bc6 15.Rc1=) 14.Nbd2 (14.Rc1 c5=) 14...Nf6 (14...c5 15.bc6 Bc6 16.Rb1=) 15.Ne5 (15.Qa4 a6 16.ba6 Bd5+=) 15...Qe8 (15...Nb5!? 16.Bb5 Qd5=+) 16.a4 (16.Ba3 Nd7 17.Nec4 Nb5 18.Bf8 Bf8+/-) 16...Nd5 (16...c5 17.bc6 Bc6 18.Ba6+=) 17.Nec4 (17.Ba3 f6 18.Nec4 Nc4 19.Bc4 Rf7+/-) 17...Qd8 (17...Nb4 18.Qe2+=) 18.Nd6 (18.Ba3 Re8=) 18...cd6= (< 18...Qd6 19.Ba3 Nb4 20.Ne4 Be4 21.Be4+/-) 19.Ne4 (19.Qe2 f5=) 19...f5 20.Nd2 Qg5 21.Qf3 (21.Nf3 Qf6=) 21...Ba8 (21...Nb4 22.Qb7 Nd3 23.Qd7 Nb2 24.Qe6 Kh8 25.Qb3=) 22.Qg3 Qg3=+ ½–½. Semenko,Georg (1800) – Schmitzer,Heinrich, 7sen.BayEM Schney, 1995.

7.d4 Qd6 8.Ba3=.

7.d4 Nbd7 8.b5 Bb7 9.Nbd2 e6 10.a4 a6 11.c4 ab5 12.ab5 c5 13.Qb3 cd4 14.ed4 dc4 15.Bc4 Nd5 16.Ra8 Qa8 17.Ra1 Qc8 18.Ne5 Ne5 19.de5 Nf4 20.Rd1 Ng2 21.Qg3 Rd8 22.Bf1 Qc2 0–1. Orang4Utan (1725) – yyssff (1660), lichess.org, 2017.

7.d4 Ne4 8.Nbd2 f5 9.Ne5 Bb7 10.f4 Nd7 11.Ndf3 (11.Ne4 fe4 12.Qd2 e6+=) 11...Rc8 12.c4 e6 13.c5 c6 14.a4 Ne5 15.Ne5 Be5 16.fe5 Qg5 17.Rf4 Qh6 18.Qe1 g5 19.Rf3 g4 20.Rf4 Rc7 21.Bd3 Ng5 (21...g3 22.h3+/-) 22.Qg3 (22.cb6 ab6 23.a5 ba5 24.ba5 Ra8+–) 22...Rg7+/- 23.Kh1 Kh8 (23...bc5!? 24.bc5 Ne4 25.Be4 de4+/-) 24.cb6+– ab6 25.a5 b5 26.Rc1 Rfg8 27.Bc3 Rg6 28.Bd2 Qg7 29.Rff1 Rh6 30.Qf4 (30.Rc2 Ra8+–) 30...Qe7? (better is 30...Nf3! 31.Rf3 gf3 32.Qf3 Rg6+=) 31.Be1 Rh5 32.Rc5 h6 33.Bg3 Nh7 (33...Ra8 34.Kg1+–) 34.Rfc1 Rg7 35.Qf2 Nf8 36.Qe1 Nd7 37.R5c2 Nb8 38.Qd2 Na6 39.Rb2 Bc8? (39...Rg8 40.Kg1+–) 40.Bf4 (better is 40.Rc6 Rg8+–) 40...g3 (better is 40...Bb7!?+/-) 41.h3+– (41.Rc6 Rh2 42.Kg1 Qh4 43.Rc8 Kh7 44.Bf5 ef5–+) 41...Rh4? (41...Bd7+–) 42.Be2 ½–½. Geisensetter,Kurt (1680) – Kempen,Willi (2100), Bayern–ch Seniors, 2007. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 g6 4.e3 Bg7 5.Be2 0-0 6.0-0 b6)

7.c4 dc4

8.Bc4 Bb7 9.d4 Nbd7 10.Nbd2+= c5 11.dc5 (11.bc5 bc5 12.Rb1 cd4 13.Bd4 Nb6+=) 11...bc5 12.b5 e6 (12...Nb6 13.Qb3=) 13.Qc2+= a6 14.ba6 (14.a4 ab5 15.ab5 Qe7+=) 14...Ba6= 15.Ba6 Ra6 16.Nc4 ½–½. Fischbach,Rainer (1670) – Liedmann,Hans Joerg (1925), Leipzig VfB op, 2007.

8.Bc4 Nc6 9.a3=.

7.d3 Bb7

8.Nbd2 Nbd7

9.c4 dc4 10.dc4 c5 (10...a5 11.b5=) 11.b5 a6 (11...Qc7 12.Qc2=) 12.a4 ab5 (12...Qc7 13.Qc2=) 13.ab5 Ra1 14.Ba1 Qa8 (14...Qc7 15.Qc2=) 15.Qc2 Nh5 (15...Rd8 16.Rd1=) 16.Bg7 (16.Bc3 Qa3 17.Nb1 Qa8=) 16...Ng7 17.Qc3 Nf6 (17...Rd8 18.Ra1 Qb8 19.Bd3=) 18.Ra1 Qb8 19.Ne5 (19.Qe5 Nf5+=) 19...Nf5 (19...Rd8!? 20.Bf3 Nd7=) 20.g4 Nh4 (20...Nd6 21.Nc6 Bc6 22.bc6+=) 21.g5 Ne4 22.Ne4 Be4 23.f3 Bf5 (23...Bb7!?+/-) 24.e4 (24.Nc6 Qd6 25.Qe1 Bd3+–) 24...Be6 (24...Bh3 25.f4 Qd6 26.Rd1+–) 25.Nc6 Qf4?? (25...Qd6 26.Ra7 Bd7+–) 26.Ne7 1–0. Leonco – Breim, internet corr, 2018.

6.0-0 c6

7.a3 a5 8.b5 c5 (8...cb5 9.Bb5 Nc6 10.c4=) 9.c4 b6 10.d4 Nbd7 11.Ne5 Bb7 12.Nc6 Qe8 13.cd5 Nd5 14.Bf3 e6 15.Nc3 N7f6 (15...Nb8!? 16.Nd5 ed5 17.Bd5 Nc6 18.Bc6 Bc6 19.bc6 Qc6+=) 16.dc5+/- bc5 (16...Bc6 17.bc6 Qc6 18.Nd5 ed5 19.Rc1+/-) 17.Nd5 (17.Bd5?! ed5 (< 17...Nd5 18.Nd5 ed5 19.Bg7 Kg7 20.Qd5+/-) 18.Nd5 Nd5 19.Bg7 Ne3=) 17...ed5 18.Bf6 (18.Bd5?! Nd5 19.Bg7 Ne3=) 18...Bf6 19.Rc1 (19.Qd5?! Ba1 20.Ra1 Bc6 21.bc6 Qe7+=) 19...d4 (19...Bc6!? 20.bc6 d4+/-) 20.Re1+– (20.Rc5?! de3 21.Qe2 ef2 22.Qf2 Qd7+/-; < 20.ed4 cd4 21.a4 Qd7+/-) 20...de3 21.Re3 (< 21.fe3 Bb2 22.Rc4 Qe6+/-; 21.Rc5?! Bc6 22.Bc6 Qe7+=) 21...Qc8 22.Rc5 Kg7 23.Qd6 Re8 24.Na5! Re3 25.fe3 Qe8 26.Nc4 Bf3 27.gf3 Rd8 28.Qc6 Qe7 29.Rd5 Rd5? 30.Qd5 Qc7 31.b6 Qb8 32.b7 Bd8 33.Ne5 Qc7 34.Qb3 Qe5 35.b8Q Qg5 36.Kh1 Bf6 37.Qe8 (37...Kh6 38.Qbf7+–) 1–0. marekt (2215) – BgChess (2045), ICC, 2003.

7.a3 Nbd7 8.d3 h6 9.Nbd2 Qc7 10.h3 g5 (10...a5 11.c4=) 11.c4+= e6 12.Rc1 Re8 13.d4 Ne4 14.Ne4 de4 15.Nd2 f5 16.Nb3 (16.c5 Rd8+/-) 16...Rd8+= 17.Rc2 Nf8 18.Qd2 Qe7 19.Rd1 f4? (19...e5 20.d5+/-) 20.Bh5 (20.ef4 Nh7+-) 20...Nh7? (20...e5!?+/-) 21.Bg6 (21.ef4 e5 22.fe5 Be5+-) 21...Nf8 (21...e5!?+/-) 22.Be4+- h5 (22...e5 23.d5+-) 23.Bf3 (23.ef4!? gf4 24.Qf4 e5+-) 23...e5 24.Bh5 e4 (24...Bf5 25.Rcc1 ed4 26.ed4 Rd6+-) 25.ef4 Ne6 26.fg5 Ng5 27.Qe3 Bf5 28.Bg4 Bg4 29.hg4 Rf8 30.Re2 Rad8 31.Nc5 (31.Bc1 Nf7+-) 31...b6 (31...Bh6 32.Kf1+-) 32.Ne4 Ne6 (32...Ne4 33.Qe4 Qd6 34.c5 bc5 35.bc5+-) 33.Ng5 (33.Nc3 Rde8 34.d5 cd5 35.cd5 Nf4 36.Qe7 Ne2 37.Qe2 Re2 38.Ne2 Bb2+-) 33...Qg5 34.Qe6 Rf7 35.Qc6 Qg4 36.Re8 Re8 37.Qe8 Rf8 38.Qe1 Rf5 (38...a6 39.c5 bc5 40.bc5+-) 39.Rd3 (39.Qe6 Kh7 40.Rd3 Qg6 41.Rh3 Rh5 42.Qg6 Kg6 43.Rh5 Kh5+-) 39...Qh5 40.Re3 (40.Qe6 Qf7 41.Qc8 Qf8 42.Qf8 Kf8+-) 40...Qf7 (40...Rf4 41.Re8 Kh7 42.Qb1 Qg6 43.Qg6 Kg6 44.Rd8+-) 41.Re8 Kh7 (41...Bf8 42.d5 Qh5 43.Qe6 Kh7 44.f3+-) 42.Re7 Qg6 (42...Qf6 43.Qe4 Kg8 44.d5 Qe7 45.Qe7 (45.Qf5?! Bb2 46.Qg4 Kf7+-) 45...Bb2 46.Qa7+-) 43.Qe6 (better 43.d5 Rf7 44.Rf7 Qf7 45.Qe4 Kg8+-) 43...Qe6 44.Re6 Rf4 45.Rd6 Re4 46.Rd8 (better 46.Kf1 Rh4+-) 46...Re2 47.Bc3 Rc2 48.Be1 Rc4 49.Kf1 (49.d5 Rc1 50.Kf1 Bc3+-) 49...Rd4 50.Rd4 Bd4 51.Ke2 b5 52.Kd2 (52.Kd3 Bb2+-) 52...Bb6 (52...Kg6 53.Kd3 Bb2 54.Bc3+-) 53.Kd3 a6 (53...Kg6 54.Ke4+-) 54.f3 Kg6 55.Bg3 (better 55.g4+-) 55...Bc7 (55...Kf5+-) 56.Bc7 Kf6 57.Bb6 Ke6 58.Kd4 Kd6 59.Bc5 Kc6 (59...Ke6+-) 60.f4 Kd7 61.f5 Ke8 62.Ke5 Kf7 63.f6 Kg8 (63...Kg6 64.Ke6 Kh7 65.f7 Kh6 66.f8Q Kg6 67.Qf5 Kg7 68.Qf7 Kh6 69.Be3) 64.g4 (64.Ke6 a5 65.f7 Kg7 66.f8Q Kg6 67.Qf5 Kg7 68.Qf7 Kh6 69.Be3) 64...Kf7 (64...Kh8 65.f7 Kg7 66.f8Q Kh7 67.Kf6 a5 68.Qg7) 65.g5 (65.Kf5 Ke8 66.Ke6 Kd8 67.f7 Kc7 68.f8Q a5 69.Bd6 Kb6 70.Qb8 Ka6 71.Qc8 Kb6 72.Bc5) 65...Kg6 66.Ke6 Kg5 (66...Kh5 67.f7 Kg5 68.f8Q Kg4 69.Bf2 Kg5 70.Qf5 Kh6 71.Kf6 a5 72.Be3) 67.f7 Kf4 (67...Kg6 68.f8Q a5 69.Qf5 Kg7 70.Qf7 Kh6 71.Be3) 68.f8Q Ke4 (68...Kg3 69.Qf2 Kg4 70.Be7 Kh3 71.Bh4 Kg4 72.Qg3 Kh5 73.Qg5) 69.Qf5 1-0. AlbertOOO44444 (1970) - vandameperu (2325), Rated Blitz game, lichess.org, 2019. (=1.b4 g6 2.Bb2 Nf6 3.e3 Bg7 4.Nf3 0-0 5.Be2 d5 6.0-0 c6)

7.a3 Nbd7 8.Re1 Re8 9.Nc3 e5 10.d4 b6 11.Na2 ed4 12.Bd4 a5 13.Bf1 (13.c4 c5 14.bc5 bc5=) 13...c5 14.Bb2 ab4 15.ab4 cb4 (15...Qe7 16.b5=) 16.Nb4+= Bb7 (16...Ra5 17.Be2+=) 17.Ra8 Qa8 18.Qa1 (18.Bb5 Re4 19.Qd2 Qa5+=) 18...Qc8 (18...Qa5 19.Nd3+=) 19.Bb5 Re4 (19...Qc5 20.Bd7 Nd7 21.Bg7 Qb4 22.Rb1+/-) 20.Bd7 (20.Bd4 Re6+/-) 20...Qd7 (20...Nd7 21.Bg7 Rb4 22.Bh6+=) 21.Ne5 Qb5 22.Nbd3 Nd7 23.Nd7+/- Bb2 24.Qb2 Qd7 25.Qb6 Rh4?? 26.Rb1 Ra4 27.h3 Qc8 28.Qb7 Qc2 29.Ne5 Qf5 30.Ng4 Kg7 31.Qb2 Kf8 32.Qb8 Kg7+– 33.Qb2 Kf8 34.Qb7 d4?? 35.Nh6 Qe6 36.Qb8 Kg7 37.Ng4 h5 38.Qe5 Qe5 39.Ne5 de3 40.fe3 Re4 41.Nf7! Kf7 42.Rb7 Kf6 43.Rb6 Kg5 44.Kf2 Re5 45.Kf3 h4 46.Ke2 Kf5 47.Kd3 g5 48.Kd4 Re7 49.Rb5+/- Kf6 50.Rb6 Kf5 51.Rb5 Kf6 52.e4 Re8 53.Rb6+– Kf7 54.Kd5 Kg7 55.e5+– Kf7 56.Kd6?? Rd8 57.Kc5= Ke7?? 58.Rg6+– Kf7 59.Rg5 Ke6 60.Rh5 Rd5 61.Kc4 Re5 62.Rh4 Re2 63.Rg4 Kf5 64.Rg8 Re4 65.Kd3 Rh4 66.Ke3 Ra4 67.g4 Ke5 68.h4 Ra3 69.Kd2 Rg3 70.h5 Rh3 0–1. silver lining – klaudio88, internet, 2010.

7.a3 Bf5 8.Nh4 Qc8 9.Nf5 Qf5 10.d4 Nbd7 11.c4 dc4 12.Bc4 e5 13.Nd2 e4 14.f3 ef3 15.Rf3 Qg4 16.Qc2 Nd5 17.e4 Nf4 18.Nf1 Ne6 19.Rd1 Ng5 20.Re3 Rae8 21.e5 Nb6 22.Rg3 Qh4 23.Bb3 Nd5 24.b5 Re6 25.Bc1+– Ne4? 26.Rh3 Qg4 27.Ne3 Ne3 28.Re3 Ng5 29.Rg3 Qe4 30.Bg5 Qc2 31.Bc2 cb5 32.Rh3 a5 33.Bb3 Rc6 34.Bd5 Rc7 35.Rb3 b4 36.ab4 a4 37.Ra3 Rd7 38.Bf3 Ra8 39.Be3 Rad8 40.Re1 b5 41.Bc6 Rd4 42.Bd4 Rd4 43.Bb5 Rb4 44.Ba4 Bf8 45.h3 Rf4 46.Ra2 Bb4 47.Ree2 Bc5 48.Kh2 Rf1 49.Rac2 Bg1 50.Kg3 Ra1 51.Bc6 Bd4 52.Kf4 Rb1 53.Rcd2 Bc3 54.Rd8 Kg7 55.Rd7 Rf1 56.Bf3 Rb1 57.e6 Rb4 58.Kg3 Rb8 59.Rf7 Kg8 60.Bd5 Be5 61.Re5 Rc8 62.e7 Re8 63.Rf8+– Kg7 64.Re8 Kf6 65.Rd8 Ke5 (66.e8Q Kd4 67.Qc6 Ke5 68.Bf3 h6 69.Rd5). market (2155) – HighRollers (2165), GameColony.com, 2002.

7.a3 Bg4 8.d3 Nbd7 9.Nbd2 a5 10.h3 Be6 11.c4 ab4 12.ab4 dc4 13.Ra8 Qa8 14.dc4 Bf5 (14...c5!?+=) 15.e4+/- Ne4 (15...Be6 16.Nd4+/-) 16.Bg7 Kg7? (better is 16...Nd2 17.Bf8 Nf3 18.Bf3 Qf8+/-) 17.Ne4+– Be4 18.Qd7 e6 (18...Bf5 19.Qd2 Re8+–) 19.Qd4 (19.Qd4 Kg8 20.Qe4+–) 1–0. market (2165) – sebo (1680), GameColony.com, 2002.

7.a4 a5 8.b5 cb5 9.ab5 b6 10.d3 Be6 11.Nbd2 Qd6 12.c4 Nbd7 13.Ba3 Nc5 14.d4 dc4 15.dc5 bc5 16.Nc4 Bc4 17.Qd6 ed6 18.Bc4 Ne4 19.Rad1 Rfd8 20.Bd5 Rac8 21.Be4 c4 22.Bb7 Rc7 23.Ba6 c3 24.Bd6 Rc4 25.Bf4 Re8 26.Rc1 a4 27.b6 Ra8 28.Bc4 1–0. Adjailton (1855) – thedius (1790), lichess.org, 2020.

7.a4 Nbd7 8.a5 Re8 (8...c5 9.bc5 Nc5 10.Bd4=) 9.d4+= e6 10.Nbd2 Bf8 (10...Qe7 11.Bc3+=) 11.b5 (11.Bc3 Qc7+=) 11...cb5= 12.Bb5 a6 (12...Bb4 13.Nb3+=) 13.Bd3 Bb4 14.Nb3 Nb8 (14...b5 15.ab6 Qb6 16.Nbd2+=) 15.Ne5+/- Nfd7 16.f4 (16.c3 Bf8+=) 16...Nc6 17.Nc6 (17.c3 Bf8+=) 17...bc6 18.c4 (18.Qe2 Nf6+=) 18...Bf8 (18...c5 19.Rc1 cd4 20.Bd4 Ba5 21.cd5 ed5 22.Na5 Qa5 23.Qf3+/-) 19.c5 Bg7 20.Bc3 Qc7 21.Rb1 Re7 22.Qe1 f6 23.e4 de4 24.Qe4 f5 25.Qe1 Nf6+= 26.Nd2 Nd5= 27.Nc4 Nf4 28.Nb6 Rb8 29.Nc8+/- Rc8 30.Ba6 Rb8 31.Rb6 Nd5+= 32.Bc4 Nc3 33.Qc3 Rd8+= 34.Rd1 Qf4 35.Rc6 Kh8?? 36.Be2?? Red7 37.Qb3?? (better is 37.Re6 Bd4 38.Rd4 Rd4 39.a6+=) 0–1. Rodriguez,A (2470) – Fernandez Morovic, PCN/III8, 1982.

7.a4 Nbd7 8.c4 h6 9.c5 (9.a5 e5=) 9...Nh7 (9...a5 10.Qb3=+) 10.d4 f5 (10...Ng5!?=) 11.Nbd2 Ndf6 12.Ne5 Qe8 13.f4 Ne4 (13...Nd7 14.Qb3+/-) 14.Ne4+- fe4 15.Qd2 (15.b5 Nf6+-) 15...Be5 (15...Nf6 16.b5+/-) 16.fe5 (16.de5 Rf7+-) 16...Rf1 17.Rf1 Be6 18.b5 Qd7 19.Kh1 (19.Qe1 Ng5+/-) 19...Rf8 20.Qe1 Rf1 21.Qf1 Bg4 22.h3 (22.bc6!? bc6 23.Ba6+=) 22...Be2= 23.Qe2 Ng5 24.b6 a6 25.a5 Kg7 26.Qf2 Nh3 27.gh3 Qh3 28.Kg1 Qg4 29.Qg2 Qd1 30.Qf1 Qg4 31.Kh2 g5 32.Bc3 h5 (32...Qh4 33.Kg2=) 33.Qh3 (33.Qg2 Qh4 34.Kg1 Kg6+=) 33...Qe2 (33...Qd1!?=) 34.Qg2+= Qe3?? (better 34...Qg2 35.Kg2 Kh6+=) 35.Bd2+- Qf3 (35...Qd4 36.Qg5 Kf8 37.Qh6 Kg8 38.Qg6 Kh8 39.Qh5 Kg8 40.Qe8 Kg7 41.Qe7 Kg6 42.Qf6 Kh7 43.Bg5 Qb2 44.Kg3 Qc3 45.Kh4 Qe5 46.Qe5 Kg8 47.Qe7 d4 48.Bh6 e3 49.Qg7) 36.Bg5 Qg2 37.Kg2 e6 (37...Kg6 38.Be7 Kf5 39.Bh4+-) 38.Kf2 (better 38.Kg3 e3 39.Be3 Kf7+-) 38...Kg6 39.Bh4 (39.Bc1 Kf5 40.Kg3 h4 41.Kh4 Kg6+-) 39...Kf5 40.Ke3?? (better 40.Kg3+-) 40...Kg4= 41.Be7?? (better 41.Bf2=) 41...h4-+ 42.Kf2 h3 43.Bf8 (43.Ke1 h2 44.Kd2 h1Q 45.Bd6 Qb1 46.Bc7 Qb2 47.Ke1 e3 48.Bd6 Qf2 49.Kd1 Qd2) 43...e3! 44.Kg1 (44.Ke3 h2 Passed pawn) 44...e2 45.Kf2 h2 ½-½. AlbertOOO44444 (1925) – profedunca, Casual Rapid game, lichess.org, 2020.

7.a4 Nbd7 8.d4 Ne4 9.Nbd2 f5 10.Ne1 (10.c4 a5+=) 10...e5= 11.de5 (11.c4 ed4 12.Ne4 fe4 13.Bd4 Nf6=) 11...Ne5 12.f4 (12.Bd4 a5 13.f4 Ng4 14.Ne4 de4=) 12...Nf7 (12...Nd2 13.Qd2 Nc4 14.Bc4 Bb2 15.Rb1-/+) 13.Bg7= Kg7 14.Nd3 Qb6 15.Rf3 a6 16.Rh3 Be6 17.Ne4? (better 17.a5 Qd8 18.Nf3=) 17...fe4-+ (worse 17...de4 18.Nc5 Bc8 19.Qd4 Kg8 20.Bc4+/-) 18.Ne5?? (better 18.a5 Qa7 19.Nc5 Bh3 20.gh3-+) 18…Bh3 ½-½. AlbertOOO44444 (1925) – profedunca, Casual Rapid game, lichess.org, 2020.

7.a4 Re8 8.d4 Ne4 9.c4 Nd7 10.b5 Ndf6 11.Nc3 Nc3 12.Bc3 Ne4 13.Bb2 Bg4 14.Rc1 a6 15.bc6 bc6 16.h3 Bf3 17.Bf3 Qa5 18.cd5 cd5 19.Be4 de4 20.Rc5 Qb4 21.Qc2 Rab8 22.Ba1 Qb3 23.Qe4 Qa4 24.Rc7 Bf6 25.Rfc1 Ra8 26.Bc3 (26.Qf3 Reb8+=) 26...Qa3 (26...Rac8 27.Ba5 Rc7 28.Bc7+=) 27.Rb1 Rac8 (27...Kg7 28.Bb4 Qa2 29.Bc5+=) 28.Bb4 (28.Qc6 Rc7 29.Qe8 Kg7+=) 28...Qa2+= 29.Rbc1 Rc7 30.Rc7 a5 31.Bc5 a4 32.Ra7 Rb8 33.Be7 Be7 34.Qe7 Rb1 35.Kh2 Qf2 (better 35...Rb8+-) 36.Ra8?? (better 36.Qe5 Qg1 37.Kg3 Qe1 38.Kg4 Qe2 39.Kh4 Qh5 40.Qh5 gh5 41.Ra4+-) 36...Kg7= 37.Qf8 Kf6 38.Ra6 Kg5 39.Qc5 f5 40.Qe7 Kh6 41.Qf8?? (better 41.Rg6! Kg6 42.Qe6 Kg5 43.Qe7 Kh6 44.Qe6 Kg7 45.Qe7 Kg8 46.Qe8 Kg7 47.Qe7 Kg6 48.Qe6 Kh5 49.Qe8 Kh4 50.Qe7 Kh5 51.Qe8 Kg5 52.Qe7 Kg6=) 41...Kh5-+ 42.Qa8?? (42.Re6 Qg1 43.Kg3 Rb5-+) 42...Qg1 43.Kg3 Qe3 (better 43...Rf1 44.Re6 f4 45.ef4 Qf2 46.Kh2 Qf4 47.g3 Rf2 48.Qg2 Qf3 49.Re5 g5 50.Qf2 Qf2 51.Kh1 Qg3-+) 44.Qf3-/+ Qf3 45.gf3 (45.Kf3 Rb3 46.Kf4 Rb4=+) 45...Ra1 (45...Rb4 46.Ra7 h6 47.d5-+) 46.d5 Rd1 (46...g5 47.Kf2 Rd1 48.Ra4 Rd2 49.Ke3 Rd5 50.f4-+) 47.Ra4 Rd5 (47...g5!?-/+) 48.Rh4= Kg5 49.Rh7 (49.f4 Kf6 50.Rh7 Rd3 51.Kg2 Re3=) 49...Rd2 50.f4 Kf6 ½-½. zajka_molotok (2480) - blitzbullet (2500), Lichess Quarantε³ne-Bundesliga Team Bat, lichess.org, 2021.

7.a4 Bg4 8.Bd4=.

7.Qc1 Nbd7 8.c4 e6 9.a3 b5 10.c5 a5 11.Nc3 a4 12.Bd1 Ne4 13.Ne2 Bb2 14.Qb2 f5 15.Ned4 Qf6 16.Qc2 Bb7 17.d3 Ng5 18.Ng5 Qg5 19.Ne6 Qf6 20.Nf8 Rf8 21.Rb1 Ne5 22.Be2 Qg5 23.f4 Qh6 24.fe5 Qe3 25.Kh1 Qe5 26.Qb2 Qe7 27.Rbe1 Qg5 28.Bf3 h5 29.Qe5 Bc8 30.Qc7 h4 31.Qc6 h3 32.Qd5 Kh7 33.g3 Qd2 34.Re2 Qc3 35.Re7 Kh6 36.Qe5 Qd3 37.Qg7 1–0. Adamkosh (1670) – Dmitrii1978 (1660), lichess.org, 2019.

7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d5 7.0-0).

7.d3 a6 8.c4 dc4 9.dc4 Bf5 10.Nbd2 Bd3 11.Nb3 Be2 12.Qe2 Ne4 13.Bg7+/- Kg7 14.Qb2 Kg8 15.Rad1 Qc7 16.Rd3 Nf6 17.Rfd1 Nbd7 18.h3 Nb6 19.Rc1 Rad8+= 20.Rdc3?? Na4-/+ 21.Qe2 Nc3 22.Rc3 Qd6 23.Rc1 Qb4–+ 24.Ne5 a5 25.Nd3 Qd6 26.c5?? Qd3 27.Qd3 Rd3 0–1. Maly,Guenther (1740) – Klawitter,Bernd (1790), RSS7E basic–17, 2009.

7.d3 a6 8.Nbd2 b5 9.c4 dc4 10.dc4 Bb7 11.c5 Nbd7 12.Nb3 e6 13.Qc2 Nd5 14.Bg7 Kg7 15.a3 Kg8 16.Rfd1 Qf6? (16...Qc7 17.e4 Nf4 18.Rd6+/-) 17.Nbd4?? (better is 17.e4+–) 17...Rac8 18.Qe4?? (18.e4 Nf4+/-) 18...Ba8 (18...Nc3 19.Qg4 Nd1 20.Rd1+=) 19.g3?? Nc3 20.Qc2 Nd1 21.Rd1 Ne5 22.Ne5 Qe5 23.Nf3 Qf6 24.Rd6 Rcd8 25.Qd2 Rd6-/+ 26.Qd6 Qa1 27.Kg2-/+ Qa3 28.Qf4? Qb2 29.h4?? Qe2 30.h5 Qc4 31.Qf6 h6 32.hg6 Qg4 33.Nh4? fg6 34.Qg6 Qg6 35.Ng6 Rf6 36.Nf4 Kf7 37.f3 e5 38.Nh5 Rg6 39.g4 Bb7 40.Ng3 Bc8 41.Kf2 Be6 42.Ne4 Bd5 43.Nd6 Rd6! 44.cd6 Ke8 45.e4 Be6 46.Kg3 Kd7 47.f4 ef4 48.Kf4 Kd6 49.e5 Ke7 0–1. bratek55 (1650) – lisijs1 (1725), kurnik, 2011.

7.d3 a6 8.Nbd2 Bg4 9.c4 e6 10.Qb3 Bf3 11.Nf3 Nbd7 12.Rfd1 Re8 13.Rac1 Rc8 14.c5 Nh5 15.Bg7 Ng7 16.d4 Nf6 17.Ne5 Nd7 18.f4 f6 19.Nd3 Qc7 20.a4 e5 21.fe5 fe5 22.Bg4 e4 23.Nf2 Rcd8 24.b5 ab5 25.ab5 Nf6 26.bc6 Ng4? 27.Ng4+– bc6 28.Qb6 Rc8? 29.Nf6+– Kf7 30.Ne8 Ne8 31.Rf1 Ke6 32.Qc7 Rc7 33.Rf8 Ng7 34.g4 Ke7 35.Rcf1 Nf5 36.Rh8 Ne3 37.Rh7 Kd8 38.Rc7 Kc7+– 39.Rf7 Kd8 40.Rf6 Ng4 41.Rg6 Ne3 42.Rc6 Nc2 43.Rd6 Ke7 44.Rd5 e3 45.c6 Ke6 46.Re5 Kd6 47.h4 Nd4 48.Re3 Kc6 49.Kg2 Nf5 50.Re4 Kd6 51.Ra4 Ke6 52.Kh3 Kf6 53.Kg4 Ne3 54.Kf4 Nd5 55.Kg3 Kg6 56.Ra6 Kh7 57.Ra5 Ne3 58.Kf4 Ng2 59.Kg5 Ne3 60.Ra7 Kg8 61.h5 Nd5 62.h6 Nb6 63.Kg6 Kh8 64.Ra6 Kg8 65.Rb6 Kf8 66.Rb8 Ke7 67.h7 Ke6 68.h8Q Kd5 69.Qf6 Ke4 70.Re8 Kd5 (70...Kd3 71.Rd8 Ke2 72.Qc3 Kf1 73.Qc2 Ke1 74.Rd1#) ½–½. bratek55 – hetyci (1735), kurnik, 2011.

7.d3 Na6 8.c3 Nc7 9.a4 Nd7 10.Nbd2 Ne5 11.Rb1 Nf3 12.Nf3 (worse is 12.gf3 Bh3 13.Re1 e5-/+) 12...h6 13.c4 Kh7 14.Bg7 Kg7 15.h3 f5 16.Nh2 e5 17.f4 Qe7 18.Qd2 ef4 19.Rf4 Bd7 20.Rbf1 Rae8 21.Qc3 Kh7 22.e4 dc4 23.Qc4 Be6 24.Qc2 Qb4-/+ 25.Rb1 Qd4 26.Kh1 Qe5 27.Rff1 Bc8 28.Nf3 Qd6 29.ef5 Rf5 30.d4 Rh5?? 31.Bd3 Bh3= 32.Bg6 Qg6 33.Qg6 Kg6 34.gh3 Rh3 35.Nh2? Re2 36.Rg1 Kh7 37.Rg2 Rg2 38.Kg2 (38.Kg2 Rh2 39.Kh2+=) 1–0. horacyad2010 – pizecik, kurnik, 2011.

7.d3 b6 8.Nbd2 Bb7 9.c4 dc4 10.Nc4 Nbd7 11.a3 c5 12.bc5 Nc5 13.Rc1 Qc7 14.Be5 Qd8 15.h3 Ncd7 16.Bb2 Nh5 17.Bg7 Ng7 18.Qb3 Nc5 19.Qb2 Nd3 20.Bd3 Qd3 21.Nce5 Qd8 22.Rfd1 Qb8 23.Nd7 Qe8 24.Nf8 Qf8 25.Rd7 Bf3 26.gf3 Ne6 27.f4 Nc5 28.Rdd1 Qh6 29.Kh2 Ne4 30.Qe5 Nf6 31.Qe7 Kg7 32.Rg1 Re8 33.Qa7 Ne4 34.Qb6 Nf2 35.Qb2 1–0. Phomopsis (1690) – MahendraBK (1675), lichess.org, 2020.

7.d3 Qc7 8.Nbd2 h5 9.c4 dc4 10.Nc4 Be6 11.Ncd2 Nbd7 12.Rc1 Rad8 13.a3 b5 14.Nd4 Bg4 15.Bg4 Ng4 16.N2f3 Nde5 17.h3 Nf3 18.Nf3 Ne3 19.Qb3 Nf1 20.Bg7 Kg7 21.Kf1 Qf4 22.Rc6 Rd7 23.Qc3 f6 24.Nd4 Qd4 0–1. Phomopsis (1630) – heartbrakr (1605), lichess.org, 2018.

7.d3 e6 8.Nbd2 Nbd7 9.c4 a5 10.b5 cb5 11.cb5 b6 12.Rc1 Bb7 13.Ne5 Ne5 14.Be5 Nd7 15.Bg7 Kg7 16.Qb3 Nc5 17.Qb2 Kg8 18.Nf3 f6 19.Nd4 Qe7 20.Bf3?? (20.Nc6!? Bc6 21.bc6+/-) 20...Rac8?? (20...Nd3 21.Qd2 Nc1 22.Rc1–+) 21.h3?? e5?? 22.Nc6= Qd6 23.d4 Nd7?? 24.Qb3 Kg7 25.de5 fe5 26.Bd5 Nc5 27.Rc5 bc5 28.Rd1 Qf6 29.Bf3 e4 30.Be4 Qf2 31.Kh1 1–0. ejdrzej (1745) – januszpalikot, kurnik, 2012.

7.d3 Re8 8.Nbd2 a6 9.e4 de4 10.de4 e6 11.Qc1 Qb6 12.a3 Nbd7 13.c4 Qc7 14.e5 Ng4 15.Qc3 Nge5 16.Ne5 Be5 17.Qc2 Bb2 18.Qb2 Qe5 19.Qe5 Ne5 20.f4 Nd7 21.Nb3 Nf6 22.Bf3 Kg7 23.g4 e5 24.g5 Nh5 25.Bh5 gh5 26.f5 f6 27.gf6 Kf6 28.Nc5 b6 29.Ne4 Kg7 30.f6 Kf7 31.Nd6 Kf8 32.Ne8 Ke8 33.f7 Kf8 34.Rae1 Be6 35.Re5 Bf7 36.Ref5 Ra7 37.Rh5 Kg7 38.Rg5 Kh6 39.Rgf5 Bc4 40.Rf6 Kg7 41.Rc1 Kf6 42.Rc4 Rc7 43.a4 b5 44.ab5 ab5 45.Rc5 Ke6 46.Kf2 Kd6 47.Kg3 Rg7 48.Kf3 Rg6 49.h4 Rf6 50.Kg4 Re6 51.h5 Re4 52.Kg5 Rb4 53.Rf5 Rb1 54.Rf7 Rg1 55.Kh6 Kc5 56.Rh7 b4 57.Rb7 Kc4 58.Kh7 c5 59.h6 b3 60.Kh8 Kc3 61.h7 c4 62.Rb4 b2 63.Rc4 Kc4 ½–½. Adjailton (1785) – kam1kaze (1755), lichess.org, 2020.

7.d4 b6 8.c4 e6 (8...dc4 9.Bc4 Qd6 10.Qb3=) 9.Nbd2+= Bb7 (9...dc4 10.Nc4 Ba6 11.Rc1+=) 10.c5 (10.a3 a5+=) 10...Nbd7 11.Qc2 (11.Rc1 a5 12.b5 Rc8+=) 11...a5= 12.a3 ab4 (12...bc5 13.bc5 Ba6 14.Ba6 Ra6 15.Bc3+=) 13.ab4 White creates threats along the open a–file 13...Ra1 (13...Qc7 14.Qc3+=) 14.Ra1 bc5 15.bc5 Qb8 16.Qb3 (better 16.Bc3+–) 16...Qc7? (better 16...Ba8+=) 17.Ra7+– Rb8 18.Ba6 Ba6 19.Rc7 Rb3 20.Nb3 Bb5 21.Na5 Bf8 22.Nc6 Bc6 23.Rc6 Kg7 (23...Ne8 24.Rc8 Ndf6 25.g4+–) 24.Rc7 h6 25.c6 Nb6 26.Ne5 Na4 (26...Kg8+–) 27.Rf7 Kg8 28.c7 (28.c7 Nb6 29.Rf6+–) 1–0. Adlai – Festis, internet, 2021.

7.d4 Nbd7 8.c4 a5 9.b5 dc4 10.bc6 Nb6 11.Nbd2 Be6 12.cb7 Rb8 (12...Ra7 13.Ne5 Rb7 14.Bc3+=) 13.Bc3+/- Nbd5 14.Rc1 Nc3 15.Rc3 Rb7 16.Nc4 Ne4 17.Rc1 Qd5 (17...Bd5 18.a3+/-) 18.Qa4 (18.Nfd2 Nd2 19.Qd2 Ra7+-) 18...Ra8+/- 19.Qa3 Rb4 20.Rc2 Bf8 (20...Bf5 21.Nh4+/-) 21.Rfc1 Bf5 22.Rb2 (22.Nce5!? e6 23.g4+-) 22...e5 (22...e6 23.Rb4 ab4 24.Qb2+=) 23.Rb4 (better 23.de5 Be6 24.Nd6 Nd6 25.ed6 Rb2 26.Qb2 Qd6 27.Nd4+/-) 23...Bb4? (better 23...ab4 24.Qb2 Nc3=) 24.Qb2+- ed4 (24...Rc8 25.a3 Bf8 26.Nfe5+-) 25.Nd4 (25.Nb6 Qd6 26.Na8 Ba3+/-) 25...Re8 (25...Rd8 26.f3 Nd6 27.a3+/-) 26.a3 (26.f3!? Nd6 27.e4 Be4 28.fe4 Ne4+-) 26...Bc5 27.Bf3 Bd4 28.Qd4 (28.ed4?! Rc8 29.g4 Be6+/-) 28...Qd4 29.ed4 Rc8 30.g4 Nd2 31.Bd5? (31.Bb7 Rc4 32.Rc4 Nc4 33.gf5 Na3 34.fg6 fg6=+) 31...Bg4 (better 31...Be6!? 32.Be6 fe6 33.Nd2 Rc1 34.Kg2 a4-+) 32.Rc2=+ Nf3 (better 32...Nb3 33.Rb2 Nd4=+) 33.Kh1? (better 33.Bf3 Bf3 34.Ne3=) 33...Nd4-/+ 34.Rd2 Bf3 35.Bf3 Nf3 36.Rd3 Rc4 37.Rf3 Rc1 38.Kg2 Ra1 39.Rc3 Kg7 40.h3 a4 41.Kg3 (41.Kf3 g5-/+) 41...h5 (41...Rb1 42.Kf4 Rb3 43.Rg3-+) 42.Kg2 g5 43.Rf3 (43.Rg3 Kg6-+) 43...f6 (43...h4 44.Kh2-+) 44.Re3 Kg6 45.Rf3? (45.Rc3 h4-+) 45...h4 (45...Rb1 46.Re3 Rb3 47.Kf3 Re3 48.Ke3-+) 46.Re3 Kf5 (46...f5 47.Rd3-+) 47.Rf3 Ke5 (47...Ke6 48.Re3 Kd5 49.Rf3-/+) 48.Re3 Kf5 49.Rf3 Ke6 50.Re3 Kf7 51.Rf3 (51.Rd3 f5-+) 51...Ra2 (better 51...Rb1!? 52.Re3 Rb3 53.Re2 Ra3 54.Re4-+) 52.Rc3 Kg6 53.Kf3 (better 53.Kg1-+) 53...Rb2 54.Re3 Rb3 55.Ke4 f5 56.Kd4 Re3 57.Ke3 g4 58.hg4 (58.Ke2 Kg5 59.Kf1 Kf4-+) 58...fg4 59.Ke2 Kg5 60.Kf1 Kf4 61.Kg2 h3 62.Kh2 Kf3 63.Kg1 h2! 64.Kh2 Kf2 65.Kh1 Kg3 66.Kg1 Kh3 67.Kf2 g3 68.Kf1 Kh2 (68...Kh2 69.Ke2 g2 70.Kd3 g1Q 71.Kc4 Qd1 72.Kc5 Qc2 73.Kd6 Qd3 74.Ke5 Qa3 75.Kf6 Qf3 76.Ke6 a3 77.Ke7 a2 78.Ke6 a1Q 79.Kd6 Qd4 80.Ke7 Qff6 81.Ke8 Qdd8) 0-1. Mendonca,Leon Luke (2490) - Zemerov,V (2265), Titled Tuesday, 2020. (=1.Nf3 d5 2.b4 c6 3.Bb2 Nf6 4.e3 g6 5.Be2 Bg7 6.0-0 0-0)

7.d4 Ne4 8.Nbd2 Nd2 9.Qd2 Nd7 10.c4 dc4 11.Bc4 Nb6 12.Bb3 Bg4 13.Qe2 Qd6 14.a3 a5 15.Bc3 a4 16.Bd1 Bf3 17.Qf3 (worse is 17.gf3 Nd5 18.Bb2 Rfd8+=) 17...e5 18.Be2 ed4 19.Rad1 Qd5 20.Bd4 Bd4 21.Rd4 Qa2 22.h4 (22.e4 Rad8 23.Rfd1 Rd4 24.Rd4 f5=) 22...Rad8 (22...Qa3 23.b5-/+) 23.h5 Rd4 24.ed4 Re8 25.Bd1 Qd2 26.b5 Re6 (worse is 26...Qd4 27.bc6 bc6 28.Qc6=; worse is 26...cb5 27.Qb7 Qd4 28.Qc6-/+) 27.bc6 bc6 28.Qg4 Re1 29.Re1 Qe1 30.Kh2 Qf2 31.Bf3 Nd5 32.h6 f5 33.Qg5 Kf7 (33...Qd4?! 34.Qd8 Kf7 35.Qd7 Kf8 36.Qd6 Kf7 37.Qd7 Kf8 38.Qd6 Kf7 39.Qd7=) 34.Qd8 Ne7 (34...Qd4?! 35.Qd7 Kf8 36.Qd8 Kf7 37.Qd7 Kf8 38.Qd8 Kf7=) 35.Bc6 (35.Qd6 Qh4 36.Kg1 Qh6 37.Qc5 Qe3 38.Kh2–+) 35...Qh4 (35...Nc6?! 36.Qd5 Ke7 37.Qc6 Qf4 38.Kg1 Qd4 39.Kf1 Qa1 40.Kf2 Qa3 41.Qc7 Kf6 42.Qh7 Qb2 43.Kf3 Qc3 44.Kf2 Qd2 45.Kf1 Qd3 46.Ke1 Qe4 47.Kf1 Qf4 48.Ke1 Qe5 49.Kf2–+) 36.Kg1 Qe1 37.Kh2 Nc6 38.Qc7 Ne7 39.Qc4 Qe6 40.Qa4 g5 41.Qb4 g4 42.a4 (42.Kg1 Qh6 43.Qb3 Qe6–+) 42...Qh6 43.Kg1 Qe3 44.Kh2 Qf4 (44...Qf4 45.g3 Qf2 46.Kh1 f4–+) 0–1. Lorenc,Tomas (2105) – Janocko,Petr (2060), Tabor op, 2008.

7.d4 Re8 8.Nbd2 a6 9.c4 Nbd7 10.Rc1 Nb6 11.a4 Bf5 12.a5 Nc8 13.cd5 cd5 (13...Nd5? 14.e4 Be4 15.Ne4 Nb4 16.Qb3 Qa5 17.Ba3+–) 14.Nb3 Nd6 15.Nc5 Rb8 16.Nh4 Bd7 17.Qb3 Bb5 18.Bb5 Nb5 19.Nf3 e6 20.Ne5 Nd6 21.Na4 Nfe4 22.Rc2 Be5 23.de5 Nc4 24.Rfc1 Qh4 25.g3 Qh3 26.Nc5 Ncd2 27.Qa2?? Nf3 28.Kh1 Qh2 0–1. tadziczek – kazio2003, kurnik, 2012.

7.d4 Bg4 8.Nbd2 Ne4 9.c4 Nd2 10.Qd2 e6 11.a4 Nd7 12.Rfc1 Rc8 13.cd5 cd5 14.b5 b6 15.h3 Bf3 16.Bf3 Nf6 17.Qd3 Qd7 18.Ba3 Rc1 19.Rc1 Rc8 20.Qd1 Bf8 21.Bb2 Rc7 22.e4 de4 23.Be2 Qc8 24.Rc7 Qc7 25.Qb1 Qf4 26.g3 Qf5 27.Kg2 h5 28.Qa1 Nd5 29.Qc1 Kh7 30.g4 hg4 31.Bg4 Qf4 32.Qd1 e3 33.f3 Bd6 34.Qh1 e2 35.Qe1 Qh2 0–1. Orang4Utan (1830) – SKhedira28 (2235), lichess.org, 2020.

7.d4 Bg4 8.Nbd2 e6 9.h3 Bf3 10.Bf3 Nbd7 11.c4 Re8 12.Qb3 Kh8 13.a4 Rc8 14.a5 b6 15.ab6 ab6 16.Ra3 Ra8 17.Rfa1 Ra3 18.Ra3 Qc7 19.b5 Rc8 20.bc6 Qc6 21.cd5 Nd5 22.Ra1 Qc2 (better 22...Ra8!? 23.Rc1 Qb7+–) 23.Rc1+– (23.Bd5?! Qd2 (23...ed5? 24.Rc1 Qc1 25.Bc1 Rc1 26.Kh2+–) 24.Be4 Kg8+=) 23...Qb3?? (23...Qc1 24.Bc1 Rc1 25.Kh2 N7f6+–) 24.Rc8 (24.Nb3?! Rc1 25.Bc1 b5+=) 24...Nf8 25.Nb3 1–0. Starace – Ramun, internet, 2019.

7.d3 a5

8.a3 ab4 9.ab4 Ra1 10.Ba1 b5 11.Nbd2 Nbd7 12.Nb3 Nb6 13.Nc5 Nfd7 14.Bg7 Kg7 15.Nd4 Nc5 16.bc5 Nd7 17.Nc6 Qe8 18.Nd4 Nc5 19.Bf3 e6 20.Qa1 Kg8 21.Qa5 Bd7 22.Rb1 Nb7 23.Qb6 Qc8 24.c4 bc4 25.dc4 Nc5 26.cd5 ed5 27.Bd5 Nd3 28.Qb7 Bf5 29.Qc8 Bc8 30.Bc4 Ne5 31.Be2 Rd8 32.f4 Ng4? 33.Rb3 Ne3? 34.Re3+– Rd4 35.Re8 Kg7 36.Rc8 Re4 37.Bf3 Rf4 38.Kf2 g5 39.g3 Rf6 40.Kg2 h6 41.h3 Rd6 42.Rc2 f5 43.Kf2 Rf6 44.Ke2 g4?! 45.hg4 fg4 46.Bg4 Rg6 47.Kf3 Rf6 48.Kg2 Kg6 49.Rc5 Rb6 50.Bh5 Kf6 51.Kh3 Rb4 52.Bg4 Rb6 53.Rf5 Kg6 54.Rf8 Kg7 55.Rf2 Kg6 56.Kh4 Rb5 57.Rd2 Rb6 58.Rd5 Kg7 59.Bh5 Rb4 60.g4 Rb1 61.Rd6 Rh1 62.Kg3 Rg1 63.Kf2 Rh1 64.Rg6 Kh7 65.Ra6 Rh2 66.Kg3 Rh1 67.Ra7 Kh8 68.Kf4 Rf1 69.Ke5 Rf2 70.Ke6 Rf1 71.Bg6 Rf2 0–1. bratek55 (1665) – lisijs1 (1660), kurnik, 2011.

8.a3 ab4 9.ab4 Ra1 10.Ba1 b5 11.Nbd2 Nbd7 12.c4 dc4 13.dc4 bc4 14.Nc4 e6 15.Qb3 Nd5 16.Bg7 Kg7 17.Rd1 Qc7 18.g3 Ba6 19.e4 Nf4?? 20.Bf1 Nf6? 21.Ne3?? N4h5?? 22.Ba6+– Rd8 23.Be2 Rd1 24.Qd1 Qb6 25.Qd2 Ne4 26.Qb2 f6 27.Nd4 e5 28.Ndc2 Nhg3 29.hg3 c5 30.Nc4 Qc7 31.Bf3 Ng5 32.Bg2 cb4 33.Qb4 Qd7 34.N2e3 Qd4 35.Qb2 Qc5 36.Qb7 Kh6 37.Qd5 Qb4 38.Ng4 Kh5 39.Nf6 Kh6 40.Ng4 Kh5 41.Nge5 Qb1 42.Kh2 Qf5 43.g4 Qg4 44.Ng4 Kg4 45.Qe5 h5 46.f3! Nf3 47.Bf3 Kf3 48.Qg5 (48.Qg5 Ke4 49.Qg6 Kd4 50.Nd6 Kd5 51.Nf5 Ke5 52.Qh5 Kf6 53.Kg3 Ke6 54.Nd4 Kd6 55.Kf4 Kc7 56.Qe5 Kb7 57.Qe7 Kb6 58.Qd6 Kb7 59.Qd7 Kb6 60.Qc6 Ka7 61.Nb5 Kb8 62.Qc7 Ka8 63.Qc8#; 48.Kh3 Kf2 49.Qe3 Kf1 50.Nd2#) 1–0. bratek55 (1620) – lisijs1 (1755), kurnik, 2011.

8.a3 ab4 9.ab4 Ra1 10.Ba1 Bg4 11.Nbd2 Nbd7 12.h3 Bf3 13.Nf3 Qb6 14.c3 e5 15.Qb3 e4 16.Nd4 ed3 17.Bd3 Ne4 18.Be4 de4 19.Bb2 Ne5 20.c4 Nd3 21.Bc3 Bd4 22.Bd4 Qb4?? 23.Qc2?? c5-/+ 24.Bf6 Qb6 25.Bc3 Qe6 26.Rb1 Qc4 27.Rb7 Ra8 28.Kh2 h5 29.f3 ef3 30.gf3 Nb4 31.Qb2? Ra2?? 32.Rb4 Rb2 33.Bb2 Qb4 34.Bf6 Qd2 (34...Qd2 35.Kg1 Qe3 36.Kg2 Qd2 37.Kf1 Qf4–+) 0–1. bratek55 (1625) – bebi52 (1785), kurnik, 2011.

8.ba5 Ra5 9.Nbd2 Nbd7 10.Nb3 Ra8 11.c4 dc4 12.dc4 e6 13.Qc2 Nb6 14.Rfd1 Qc7? (better is 14...Nbd7+/-) 15.Be5+– Qe7 16.Qb2 (better is 16.Bd6!? Qd8 17.Bf8 Qf8 18.Rab1+–) 16...Nh5 17.Bg7 Ng7 18.Nbd4 Nd7 19.a4 Nc5 20.a5 Na6 21.Qa3 Qa3 22.Ra3 Nf5 23.Rb1 Nd4 24.ed4 e5 25.Ne5+– Re8 26.c5 f6 27.Ba6+– Ra6 28.Nc4 Re2? 29.Kf1 Rc2 30.Nd6 Ra8 31.Nb7 Bf5 32.Rd1 Re8 33.Re3 Rb8 34.Rb3 Be6 35.Rb6 Bc4 36.Kg1 Re8 37.Nd6 Ree2 38.Nc4 Rf2 39.Ne3 Rce2 40.Rd3 Ra2 41.Rb1 Rfe2 42.d5 cd5 43.c6 Ra5 44.c7 Rc5 45.Rb8 Kg7 46.c8Q Rc8 47.Rc8 d4 48.Nf1 Re4 49.Rd8 1–0. bratek55 (1665) – bebi52 (1740), kurnik, 2011.

8.ba5 Ra5 9.Nbd2 Re8 10.c4 dc4 11.Nc4 Ra8 12.Qc2 Nbd7 13.Rfd1 Nb6 14.Nb6 Qb6 15.a3 Bf5 16.Nd4 Bd7 17.Bf3 (17.Rab1 c5 18.Nb3 Rec8=) 17...Nd5 (17...c5 18.Rdb1 cd4 19.Bd4-/+) 18.Bd5 (better is 18.Rab1!?+=) 18...cd5+= 19.Rdb1 Rec8 20.Qd2 Qa6 21.Rc1 e5 22.Ne2 Bb5 23.Rc8 Rc8 24.Rc1 Rd8 25.Ng3? Bd3-/+ 26.h3 Bb5 27.Qb4 Bc6 28.Qe7 Re8 29.Qd6 Qb5 30.Qb4 Qb4 31.ab4 Ra8 32.Ra1 Ra1 33.Ba1 f6 34.Ne2 Bf8 35.Bc3 Bb5 36.Kf1 Kf7 37.Ke1 Be2 38.Ke2 Ke6 39.g4 Kd6 40.Kd3 f5 41.f3 e4 42.fe4 fe4 43.Kc2 Kc6 44.Kb3 Kb5 45.h4 Be7 46.h5 gh5 47.gh5 Bh4 48.Bd2 Bf2 49.Kc3 Bg3 50.Kd4 Kc6 51.b5 Kd6 52.Bb4 Ke6 53.Bf8 b6 54.Bg7? Bd6 0–1. ejdrzej (1675) – janjanin (1830), kurnik, 2011.

7.d3 Nbd7

8.Nbd2 a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Ne8 12.Bg7 Ng7 13.c4 e6 14.c5 b6 15.d4 bc5 16.bc5 f6 17.Qa4 Qc7 18.Ra1 Rf7 19.Qa5 Nf8 20.Qc7 Rc7 21.Ra8 Kf7 22.e4 Nd7 23.Kf1 e5 24.ed5 cd5 25.de5 fe5 26.Ra5 Ne6 27.Nb3 Kf6 28.Bb5 Ndc5 29.Nc5?? Rc5 30.Nd2 Rb5! 31.Rb5 Ba6 0–1. bratek55 – mansubi (1680), kurnik, 2011.

8.Nbd2 a6 9.h3 Qc7 10.Rc1 e5 11.a3 e4 12.de4 de4 13.Nd4 Nd5 (better is 13...Rd8!?+=) 14.c4 N5f6 15.Qc2 Ne5 (better is 15...Re8+=) 16.Qe4?? (better is 16.Ne4 Ne4 17.Qe4+/-) 16...Ne4–+ 17.Ne4 Bf5 18.Nf5 gf5 19.Nc5 Nf3! 20.Bf3 Bb2 21.Rcd1 Ba3 22.Rd7 Qc8 23.Rb7 a5 24.Rd7 ab4 25.Rfd1 b3! 26.Nb3 Rb8 27.Na5 Rb2 28.Nc6 Qa6 29.Ne7?? Kg7 30.Nf5 Kh8 31.Ra1 Qe6 32.Rd5 Rb3?? 33.Nd4+= Qf6?? 34.Nb3+– Rb8 35.Ra3 Kg7 36.Nd4 Rb1 37.Kh2 Rf1 38.Rg5! Kf8?? 39.Ra8+– Ke7 40.Nc6 Kd7 41.Rd5 Kc6 42.Rf5 Kd7 43.Rf6 Rf2 44.Rfa6 Ke7+– 45.Rb6 Rd2 46.Ra7 Kf8 47.Rb8 Kg7 (47...Kg7 48.Rbb7 Rf2 49.Rf7 Kg6 50.Be4 Kg5 51.Ra5 Rf5 52.Bf5 Kh6 53.h4 Kh5 54.Rh7#). pawelpit – damianofff (1630), kurnik, 2012.

8.Nbd2 Nb6 9.a4 Bg4 10.h3 Bf3 11.Nf3 Nbd7 12.c4 dc4 13.dc4 Nb6 14.Qb3 Nh5 15.Bg7 Ng7 16.Rfd1 Qc7 17.a5 Nd7 18.Nd4 c5 19.Nb5 Qc6? 20.Bf3+– Qe6?! 21.Nc7 Qf5 22.Na8 Ra8 23.Bb7 Rb8 24.a6 cb4 25.Qb4 Ne5 26.Qe7 Re8 27.Qb4 Nd3 28.Qd2 Rd8 29.Bd5 Ne5 30.Qd4 Ne6 31.Qa7 Qg5 32.Rab1 Rd5 33.cd5 Nf3 34.Kf1 Nh2 35.Ke2 Nf8 36.Rb8 Qg2 37.Qe7 Qf3 38.Ke1 Qh1 39.Kd2 Qd5 40.Kc2 Qc4 41.Kb2 Qe2 42.Kc1 Qc4 43.Kd2 Nf3. bratek55 (1680) – mates72 (1630), kurnik, 2011.

8.Nbd2 Qc7 9.Rc1 Qb6 10.a3 a5 11.c3 c5 12.Qb3 cb4 13.ab4 ab4 14.cb4 e6 15.Ra1 Ra1 16.Ra1 Qd6 17.g3 Nb6 18.Ra7 Ne8 19.Bg7 Kg7 20.Nd4 Qb8 21.Ra1 Bd7 22.Qb2 Kg8 23.Kg2 Nd6 24.N2f3 Nf5 25.Nf5 gf5 26.Ne5 f6 27.Nd7 Nd7 28.Bf3 Kf7 29.e4 fe4 30.de4 de4 31.Be4 Rc8 32.Qe2 Qe5 33.Re1 b6 34.f4 (34.f4 Qc3 35.Qh5 (35.Bh7?! Nf8+/-) 35...Kf8 36.Rd1+–; 34.Bh7?! Qe2 35.Re2 f5=) 1–0. bratek55 (1655) – ptakp, kurnik, 2011.

8.Nbd2 e6 9.c4 a6 10.Qb3 Nb6 11.c5 Nbd7 12.a3 Qc7 13.h3 e5 14.Rad1 Nh5 15.Nh2 Nhf6 16.Nhf3 h6 17.Nb1 Nh7 18.Nc3 Re8 19.Na4 b5 20.cb6 Nb6 21.Nb6 Qb6 22.Rc1 Bb7 23.Nd2 Qc7 24.Qd5 Qe7 25.Qa2 Qg5 26.Nf3 Qe7 27.Rc5 e4 28.de4 Qe4 29.Bg7 Kg7 30.Qb2 Kg8 31.Qc3 Rac8 32.Re5 Re5 33.Ne5 Rd8 34.Bf3 Qf5 35.Nc6 Bc6 36.Qc6 Ng5 37.Bg4 Qb5 38.Qb5 ab5 39.Be2 Ra8 40.Ra1 Rb8 41.h4 Ne4 42.Bf3 Nd2 43.Bd5 Rd8 44.e4 Re8 45.a4 ba4 46.Ra4 Ne4 47.Ra5 Nc3 48.Bc6 Rb8 49.b5 Kg7 50.g3 h5 51.Kg2 Ne2 52.Ra8 Rb6 53.Ra6 Rb8 54.Ra7 Nd4 55.Bd5 Nb5 56.Rf7 Kh6 57.g4 hg4 0–1. Phomopsis (1720) – marcosjm (1710), lichess.org, 2020.

8.Nbd2 Re8

9.a3 e5 10.c4 e4 11.Nd4 ed3 12.Bd3 dc4 13.Nc4 Nb6 14.Qb3 Nfd5 15.Rac1 Qg5 16.Rfd1 Be6 17.Bf1 Rad8 18.Ne6 Re6 19.Nb6 Nb6 20.Rc5 Qe7 21.Bg7 Kg7 22.Qb2 Kg8 23.h3?? Rd1–+ 24.Qc2 Red6 25.Kh2 Rf1 26.Qe2 Rdd1 27.Qf3 Nd5 28.e4 Qe5 29.g3 Rh1! 30.Qh1 Rh1 31.Kh1 Qe4 (31...Qe4 32.Kh2 Qe2–+) 0–1. elsh1403 – vengorz, kurnik, 2011.

9.a3 e5 10.Re1 b6 11.Bf1 Bb7 12.c4 Qc7 13.cd5 cd5 14.Rc1 Qd6 15.e4 d4 16.Nc4 Qe7 17.Qb3 Rac8 18.h3 Ba6 19.b5 Bb7 20.a4 Nc5 21.Qa3 Nh5 22.g3 f5 23.ef5 gf5?? 24.Nfe5 Be5 25.Re5+– Qg5 26.Re8 Re8 27.Bg2 Ng3 28.fg3?? Qg3–+ 29.Ne3 Re3 30.Qa2 Kf8 31.Bd4 Qg2 32.Qg2+– Bg2 33.Kg2 Rd3 34.Bc5 bc5 35.Rc5 Ra3 36.Rf5 Ke7 37.Rf4 Ke6 38.Rh4 Kf6? 39.Rh7 Ra4 40.Rh6 Kg5 41.Rh7 Ra2 42.Kf3+/- Kg6 43.Rb7 Ra3 44.Kg4 Ra4 45.Kg3 Ra3 46.Kg4 Ra5 47.Rb8 Ra1 48.h4 Kh6 49.b6 ab6 50.Rb6 Kg7 51.Rb5 Rg1 52.Kh5 Rh1 53.Rb7 Kf6 54.Rb4 Rg1 55.Kh6 Kf7 56.h5 Ke6 57.Rf4 Ke5 58.Rf8 Ke6 0–1. exp2005 – krakus90, kurnik, 2011.

9.Rc1 e5 10.e4 (10.c4 a5 11.b5 e4+=) 10...d4 (10...a5!? 11.a3 ab4 12.ab4 Ra2+=) 11.c3= c5 (better is 11...dc3!? 12.Bc3 Qe7=) 12.bc5+/- Nc5? (better is 12...dc3 13.Rc3 Nh5+/-) 13.cd4+– Na4 (13...Ne6 14.de5 Nd7+–) 14.Qa4 Bd7 15.Qb3 ed4 16.Bd4 (16.Qb7?! Rb8 17.Qa7 Rb2+–) 16...Be6 17.Qb2 Nh5 18.Bg7 Ng7 19.Ne5 (19.d4 Re7+–) 19...b6 (19...Qb6 20.Rc2+–) 20.Nc6 Qg5 21.Nf3 Qf4 22.Nce5 Rad8 23.g3 Qh6 24.Nc6 Ra8 25.Nfe5 Bh3 26.Rfe1 Ne6 27.d4 Ng5 28.d5 Ne4 29.d6! Nf6 30.d7! Nd7 31.Nd7 Red8 32.Nf6 Kf8+– 33.Qb4 Kg7 34.Ng4 Qg5 35.Qb2 Kg8 36.Nf6 Kf8 37.Nd7 Rd7 38.Qh8# 1–0. blaugrana18 – jihat13, kurnik, 2012.

9.c4 dc4 10.Nc4 Nb6 11.Nb6 ab6 12.a3 Bg4 13.h3 Bf3 14.Bf3 (worse is 14.gf3 e5+=) 14...e5 15.Qc2 b5 16.Rfd1 Qc7 17.d4 ed4 18.Bd4 Nd5?? (better is 18...Qe7+=) 19.Bg7 Kg7 20.Bd5 Ra4 21.Bb3 Ra6 22.a4 Rea8 23.a5 Re8 24.Rd3 c5 25.bc5 Ra5 26.Qc3 Kg8 27.Qa5 Qe5 28.Rad1 Qc5 29.Rd7 b6 30.Qa7 Rf8 31.Bf7 Kh8 32.Qa1 (32.Qa1 Qe5 33.Qe5) 1–0. ejdrzej (1740) – ninzowitsch, kurnik, 2011.

9.c4 e5

10.Qb3 dc4 11.Nc4 Nd5 12.Rfd1 b5 13.Nd6 Re6 14.Nc8 Qc8 15.g3 a5 16.a3 a4 17.Qc2 N7b6 (17...f5 18.e4 N5b6 19.d4 fe4 20.Ng5+=) 18.Ng5 Re8 19.Rac1 Ne7 20.Bf3 f6 21.Ne4 Qe6 22.Nc5 Qd6 23.d4 Nc4?? 24.de5+– fe5 25.Rd6 Nd6 26.Ne6 (26.Ne6 Nc4 27.Be2 Nb2 28.Qb2+–) 1–0. bratek55 (1715) – unuklukin, kurnik, 2011.

10.Qc2 a6 11.a4 Rb8 12.a5 b6 13.ab6 Qb6 14.Bc3 dc4 15.Nc4 Qc7 16.Rfc1 c5? (better is 16...Nd5!?=) 17.bc5+/- Nc5?? (better is 17...e4 18.de4 Ne4 19.Bg7 Kg7+/-) 18.Nce5 (better is 18.Be5 Re5 19.Nce5+– (19.Nfe5?! Nb3+/-)) 18...Nb3= 19.Nc4 Nc1 20.Rc1 Nh5 21.Bg7 Ng7 22.d4 Be6 23.Qd1 Qa7 24.Ng5 h6 25.Ne6 Ne6 26.Ne5 Rbc8 27.Ra1 a5 28.h3 Rc7 29.Qa4 Rec8 30.Qa5?? Qa5 31.Ra5+/- Rc1 32.Kh2 R1c2 33.Bg4 Rf2 34.Be6 fe6 35.Ng6 Re2?? 36.Ne7+– Kf7 37.Nc8 Re3 38.Ra4 Rd3 39.Nd6 Ke7 40.Ne4 e5 41.de5 Ke6 42.Ra5 Rd5 43.Rd5 Kd5 44.Nf2 Ke5 45.g4 Kf4 46.Kg2 Kg5 47.Kg3 h5 48.gh5 Kh5 49.h4 Kg6 50.Kg4 Kh6 51.h5 Kg7 52.Kg5 Kh7 53.h6 Kg8 54.Kg6 Kh8 55.Ng4 Kg8 56.Ne5 Kh8 57.Kh5 Kh7 58.Kg5 Kg8+– 59.Kg6 Kh8 60.Nf7 Kg8 61.h7 (61.h7 Kf8 62.h8Q Ke7 63.Qd8 Ke6 64.Qd6#) 1–0. ejdrzej (1670) – 6slimak, kurnik, 2012.

10.Qc2 b6 11.a4 Bb7 12.a5 ba5 13.ba5 Ba6 14.h3 Rc8 15.d4 e4 16.Ne1 Qc7 17.g3 (17.Bc3 c5+=) 17...Rb8 18.Ng2 Rb7 19.Rab1 Reb8 20.Bc3 c5 21.Rb7 Rb7 22.dc5 Nc5 23.Rb1 Rb1 24.Qb1 Nd3?? 25.Bf6+/- Bf6 26.cd5 Qc5?? 27.Ne4+– Qc1 28.Qc1 Nc1 29.Nf6 Kg7 30.Ba6 Kf6 31.h4 Nb3 32.Kf1 Na5 33.Ke2 Nb3 34.f4 h6 35.g4 Ke7 36.h5 gh5 37.gh5 Kd6 38.Bb7 Nc5 39.Bc6 a5 40.Ne1 a4 41.Nc2 f6 42.Kf3 Kc7 43.e4 Kd6 44.Ke3 Kc7 45.Kd4 Nd7 46.e5 fe5 47.fe5 Nb6 48.Nb4 a3 49.d6 Kb8 50.Na2 Nc8 51.Kc5 Na7 52.e6 Nb5 53.Kb5 Ka7 54.e7 Kb8 55.e8Q Ka7 56.Qa8 1–0. ejdrzej (1710) – pelkan (1640), kurnik, 2011.

10.Qc2 e4 11.de4 Ne4 12.Bg7 Kg7 13.cd5 cd5 14.Nd4 Nd2 15.Qd2 Nf6 16.Qb2 Be6 17.Ne6 fe6 18.Rac1 Rc8 19.Rc8 Qc8 20.Rc1 Qd7? (20...Qb8 21.Rc5+=) 21.b5?? (21.Bb5 Qe7 22.Be8 e5+–) 21...Kf7? 22.a4 Rc8+= 23.h3 Ne4 24.Bf3 Ng5 25.Be2 Ne4 26.Bd3 Nc5 27.Bc2 Qd6 28.a5 b6 29.ab6 ab6 30.Bd1?? Qd7 31.Be2= Ne4 32.Rc8 Qc8 33.Bf3 Qc3 34.Qe2 Nd2 35.g3 Nc4 36.Kg2 Qe5 37.Qa2 Nd6?? 38.Qa7+– Kf6 39.Qc7 d4 40.ed4 Qd4 41.Qc6 Nf5 42.h4 h5 43.Be4 Ne3?? 44.Kh2?? Ng4–+ 45.Kg2 Qe5 46.Bf3+= Nh6? 47.Qe8?? Nf5?? 48.Qd8 Kf7+– 49.Qd7?? Ne7 50.Bc6 Qf6 51.Qe8 Kg7 52.Qb8 Qe5 (52...Qe5 53.Qe5 Kf7 54.Bd7 Nf5 55.Be6 Ke7 56.Bf5 Kf7 57.Qe6 Kg7 58.Qe7 Kh8 59.Bg6 Kg8 60.Qf7 Kh8 61.Qf8#). ejdrzej (1705) – gramnaczas, kurnik, 2012.

10.Qc2 Qe7 11.a3 e4 12.de4 Ne4 13.Bg7 Kg7 14.Ne4 de4 15.Nd2 Nf6 16.c5 h5 17.Rad1 h4 18.Nc4 h3 19.g3 Bf5 20.Nd6 Red8 21.Nf5 gf5 22.Rd8 Rd8 23.Rd1 Rd7 24.Rd7 Qd7 25.Bf1 f4 26.ef4 Qg4 27.Qe2 Qf5 28.Qc2 Qg4 29.Be2 Qd7 30.Qd1 Qe6 31.Bf1 e3 32.Qe2 ef2 33.Qf2 Ng4 34.Qd4 Nf6 35.Qf2 Kf8?? 36.Qf3 Qe1 37.g4 Ne4 38.f5 Nd2 39.Qh3 Ne4 40.f6 Qf2 41.Kh1 Nd2?? 42.Qh8# 1–0. ejdrzej (1710) – rizikantes (1895), kurnik, 2012.

10.cd5 Nd5 11.a3 a5 12.Qb3 a4 13.Qc2 Kh8 14.Rac1 f5 15.Nc4 N7b6? (better is 15...Qe7!?+=) 16.Nce5 Be6 17.Nc4 Nf6 18.Nb6 Qb6 19.Ng5 Bg8 20.d4 h6 21.Nf3 Ne4 22.Bc4 Bh7 23.Nd2 Nd6 24.Bd3 Rad8 25.Nc4 Qc7 26.Nd6 Qd6 27.Qa4 f4 28.Rfe1 fe3 29.fe3 h5 30.Qc2 Bh6 31.Rcd1 Re3 32.Rf1 Re7 33.d5 Bg7 34.Bg7 Rg7 35.dc6 bc6? 36.Qc3 Qe6? 37.Bc4 Qg4 38.Rd8 Bg8 39.Rg8 Kh7 40.Qg7 1–0. ejdrzej (1685) – janjanin (1885), kurnik, 2011.

7.d3 Bg4

8.Nbd2 Na6 9.a3 Nc7 10.c4 dc4 11.Nc4 Ncd5 12.Qb3 Rc8 13.Rfd1 e6 14.h3 Bf3 15.Bf3 (worse is 15.gf3 Ne8=) 15...Nb6 16.Ne5 Nfd7 17.d4 Ne5 18.de5 Qe7 19.Rd6 Rfd8 20.Rad1 Nd5 21.Bd5 cd5 22.Rd8 Qd8 23.Bd4 b6 24.Qa4 Qc7 25.f4 Bf8 26.Kh2 Qc2 27.Qc2 Rc2 28.Ra1 Kg7 29.Kg3 Rc7 30.Kf3 b5 31.e4 de4 32.Ke4 a6 33.g4 Be7 34.f5 ef5 35.gf5 gf5 36.Kf5 Kf8 37.Rd1 Rc6 38.Ke4 Rc8 39.Kd5 Rd8 40.Ke4 Rd7 41.Rc1+– Bd8 42.Rc6 Ke8 43.Ra6 Bc7 44.Bc5 Rd1 45.Rh6 Re1 46.Kd5 Re5? 47.Kc6 Bd8 48.Kb5 Be7 49.Rh7 Bc5 50.bc5 f5 51.Rh5 Ke7 52.Kb6 Ke6 53.c6 Re1 54.Rh6 Ke5 55.Rh8 Kf4 56.c7 Rc1 57.Ka7 Rc7+/- 58.Kb6 Rc3 59.a4 Ra3 60.a5 1–0. bratek55 (1750) – wgwl (1690), kurnik, 2011.

8.Nbd2 Qc7 9.h3 Bf3 10.Nf3 Nbd7 11.c4 e5 12.Rc1 e4 13.Nd2 Qd6 14.Qb3 a5 15.a3 a4 16.Qa2 Ne5 17.de4 de4 18.Be5 Qe5 19.Rfd1 Rad8 20.b5 Rd7 21.Qc2 Rfd8 22.Nf1 Rd1 23.Rd1 Rd1 24.Qd1 Nd7?? 25.Qa4 Nc5 26.Qa8 Bf8 27.Qb7?? cb5 28.cb5?? Nb7–+ 29.a4 Bb4 0–1. elsh1403 – 18smok (1770), kurnik, 2011.

8.Nbd2 e6 9.a3 Nbd7 10.c4 a6 11.h3 Bf3 12.Nf3 (worse is 12.gf3 Qe7+=) 12...Qe7 13.Rc1 Rac8 14.c5 e5 15.Qb3 e4 16.de4 Ne4 17.Bg7 Kg7 18.Rfd1 Ne5 19.Qb2 f6 20.Ne5 Qe5 21.Qe5 fe5 22.Bf3 Ng5 23.Bg4 Rcd8 24.h4 Ne4 25.Bf3 Nf6 26.a4 Rf7 27.g3 Rdf8 28.Rf1 e4 29.Be2 Nd7 30.b5 ab5 31.ab5 Ne5 32.bc6 bc6 33.Ra1 Rb7 34.Kg2 Rb2–+ 35.Rfe1 Nd3 36.Bd3 Rff2 37.Kg1 ed3 38.Rad1 Rg2 39.Kh1 Rh2 40.Kg1 Rbg2 41.Kf1 d2 42.Rd2 Rd2 43.e4 de4 44.Kg1–+ Rhe2 45.Kf1 Re1 46.Ke1 Rd3 47.Kf2 Kf6 48.g4 h5 49.Ke2 hg4 (49...hg4 50.Kf2 Rf3 51.Ke2 g3 52.h5 g2 53.Ke1 g1Q 54.Ke2 Qg2 55.Ke1 Rf1#) 0–1. ejdrzej (1690) – jakcent (1675), kurnik, 2012.

8.Nbd2 Re8 9.Rb1 Nbd7 10.c4 dc4 11.Nc4 Qc7 12.Qb3 Nh5 13.Bg7 Ng7 14.Rbc1 Ne5?? (better is 14...e5+=) 15.Nce5+– (15.Nce5 Be6 16.Qb2+–; 15.Nfe5?! Be2 16.Rfe1 Bh5 17.Nf7 Nf5+–) 1–0. bratek55 (1655) – gelu100, kurnik, 2011.

8.h3 Bd7 9.Nbd2 Na6 10.a3 Nc7 11.c4 dc4 12.Nc4 Ncd5 13.Nce5 Bf5? (better is 13...a5=) 14.e4+– Bh3? (14...Ne4 15.de4 Be4 16.Bc4+–) 15.gh3 (better is 15.ed5!? Bd7 16.dc6 Bc6 17.Nc6 bc6+–) 15...Nf4 16.Ng4?? (better is 16.Qd2 N6h5 17.Ng5+–) 16...Nh3 17.Kh2 Nf4?? 18.Nf6+/- ef6 19.Qd2 g5 20.Rg1 Qd7?? 21.Rg3 h5? 22.Ng5! fg5? 23.Rg5?? Qh3 24.Kg1 f6 25.Rg3 Qh4+= 26.Bf1 Rad8 27.Rd1 Rf7+= 28.Qc3 Rfd7 29.Qc4 Kh8 30.d4 f5 31.ef5 Bd4?? 32.Bd4 Rd4 33.Rd4 Rd4 34.Qd4 Kh7 35.Qd7 Kh6 36.Qd6 Kh7 37.Qe7 Kh6 38.Qf6 Kh7 39.Qg7. exp2005 – holmes80, kurnik, 2011.

8.h3 Bf3 9.Bf3 Nbd7 10.c4 dc4 11.dc4 Nb6 12.Qb3 Rc8 13.a4 Nh5 (13...Qc7 14.Rd1+=) 14.a5 (14.c5!? Nd5 15.Bg7 Ng7 16.Rd1+/-) 14...Bb2+= 15.ab6?? (better is 15.Qb2 Nc4 16.Qe2+=) 15...Ba1–+ 16.ba7 Ra8 17.Nd2 Bg7 18.b5 Qd2 19.bc6 bc6 20.Bc6 e6 21.Rd1 Qa5 22.Ba8 Ra8?? 23.Qb8= Rb8 24.ab8Q Bf8 25.Rd8 Qa3 26.Qb7 Nf6 27.g4 Qc1 28.Kg2 Qc4?? 29.Qe7+– Qe4 30.f3 Qc2 31.Kg3 Nd7 32.Qd7 Kg7?? 33.Qd4 e5 34.Qe5 Kh6 35.Rf8 Qc1 36.Rf7 Qe1+– 37.Kf4 Qb4 38.Qe4?? Qd6= 39.Qe5 Qb4 40.Kg3?? Qe1= 41.Kg2 Qe2 42.Kg3 Qe1 ½–½. elsh1403 – predator65 (1675), kurnik, 2011.

8.Nbd2 Nbd7

9.a4 a6 10.h3 Bf5 11.c4 dc4 12.Nc4 Nb6 13.Nd4 Bc8 14.a5 Nbd5 15.Qb3 Re8 16.Rac1 e5 17.Nf3 e4 18.de4 Ne4 19.Bg7 Kg7 20.Rfd1 Qe7 21.Qb2 Kg8 22.Nb6 Rb8?? 23.Nc8 Rbc8+= 24.Bc4 Qb4 25.Qa1 Rcd8= 26.Bd5 cd5 27.Rd4 Qe7 28.Qb2 Nf6 29.Rb4 Rd7 30.Rb1 Qd8 31.Rb6 Ne4 32.Rb7 Rb7 33.Qb7 Qa5 34.Qd7 Rf8 35.Rb7? Qa1 36.Kh2 a5 37.Nd4 Nf2 38.Ne6?? Qh1 39.Kg3 Ne4 40.Kf3 Qf1 41.Kg4 Qf5 42.Kh4 Qh5# 0–1. ejdrzej (1800) – janjanin (1710), kurnik, 2012.

9.Rb1 Re8 10.h3 Bf3 11.Nf3 Qc7 12.c4 dc4 13.dc4 Rad8 14.Qb3 Nh5 15.Bg7 Ng7 16.Rfd1 Ne5 17.Nd4 Rd7? (17...Nd7 18.c5+=) 18.Nf3?? (better is 18.f4+–) 18...Nf3 19.Bf3 Red8 20.Rd7 Rd7 21.Rd1 Ne6 22.g3 Ng5 23.Bg2 Qd8 24.Rd7 Qd7 25.h4 Ne6 26.Bh3 Qd6 27.Be6 Qe6 28.Kg2 b5 29.c5 Qb3 30.ab3 Kg7 31.Kf3 Kf6 32.Ke4 Ke6 33.Kd4 Kf5 34.f3 e5 35.Kd3 Ke6 36.g4 f5 37.g5 Kd5 38.e4 fe4 39.fe4 Ke6 40.Ke3 Kf7 41.Kf3 Kg7 42.Kg4 a6 43.h5 h6?? 44.gh6 Kh6= 45.hg6 Kg6 46.Kh4 Kh6 47.Kg4 Kg6 48.Kh4 Kh6 49.Kg4 Kg6 ½–½. bratek55 (1645) – gelu100, kurnik, 2011.

9.Rc1 Qc7 10.h3 Bf3 11.Nf3 a6 12.c4 dc4 13.dc4 e5 14.Qb3 e4 15.Nd4 Ne5 16.Rfd1 Rad8 17.a4 b6 18.c5 b5 19.ab5 ab5 20.Ra1 Nfd7 21.Ra6 Kh8 22.Rda1 Qb7 23.Ra7 Qb8 24.Nc2 f5 25.f4 ef3= 26.Bf3?? Nf3–+ 27.gf3 Qg3 28.Kf1 Qf3 29.Ke1 Qg3 30.Ke2 Qg2 31.Ke1 Qg3 32.Ke2 Ne5 33.Be5 Be5 34.Rf1 Qg2 35.Rf2 Rd2! 36.Kd2 Qf2 37.Kd1 Rd8 38.Nd4 Bd4 39.ed4 Rd4 40.Kc1 Qe1 41.Kb2 Rd2 42.Qc2 Rc2 43.Kc2 Qe2 44.Kc3 Qc4 45.Kd2 Qb4 46.Ke2 Qc4 47.Kf3 b4 48.Ra8 Kg7 49.Rc8 b3 50.Rc6 Qd5 51.Kf4 Qc6 52.Ke5 Qc5 53.Ke6 Qc3 54.Kd5 Qh3 55.Ke6 b2 56.Kd5 b1Q 57.Ke6 Qhd3 58.Ke7 Qb6 59.Ke8 Qdd8 (59...Qbe3) 0–1. bratek55 (1610) – cien1smierci, kurnik, 2011.

9.Rc1 Re8 10.c4 e6 11.h3 Bf3 12.Nf3 (worse is 12.gf3 Qe7+=) 12...Rc8 13.Qb3 Nb6 14.a4 dc4 15.dc4 Nbd7 16.Rfd1 Qc7 17.c5 Nd5 18.Bg7 Kg7 19.g3 Red8 20.e4 N5f6 21.Rd6 Ne4+= 22.Rd4 Nef6 23.Rcd1 Ne5 24.Rd6 Nf3 25.Bf3 Nd5 26.Bd5 cd5 27.Rd8 Qd8 28.Qc3 Qf6 29.Qd3 Qb2 30.Qb5 Rc7 31.Kg2 Qc2 32.Re1 d4 33.Re2 Qf5 34.Rd2 Qd5 35.Kg1 e5 36.Qd3 f5 37.f3 Rd7 38.Re2 Kf6 39.Kf2 h5 40.h4 b6 41.cb6 ab6 42.Qa6 Rd6 43.Qc8-/+ Kg7 44.Qc7+= Kh6 45.Qc8 Kg7 46.Qc7 Rd7 47.Qe5 Qe5 48.Re5 d3 49.Ke1 d2 50.Kd1 Rd4 51.Rb5+/- Rd6 52.a5 ba5 53.ba5 Rd3 54.Rb7 Kf6 55.a6 1–0. bratek55 – naraf (1840), kurnik, 2011.

9.c3 e5 10.a4 e4 11.de4 de4 12.Qc2 ef3 13.Bf3 Bf3 14.Nf3 Nd5 15.Rad1 Qb6 16.Qb3 N7f6 17.c4 Nb4 18.Ba3 a5 19.Nd4 c5 20.Nb5 Ne4 21.Bb4 ab4 22.f3 Nc3 23.Nc3 Bc3 24.Rc1 Qf6 25.e4 Qd4 26.Kh1 Qe5 27.Qc2 Qh5 28.g4 Qh4 29.Qd3 Rad8 30.Qe3 Rd2 31.Qf4 f6 32.Rg1 Rfd8 33.Rg3 Be5 34.Qd2 Rd2 35.Rg2 Rg2 0–1. Adjailton (1820) – Pro_4_ever (1800), lichess.org, 2020.

9.c4 dc4 10.Nc4 Nb6 11.Qb3 e6 12.Nce5 Nbd5 13.Ng4 Ng4 14.Bg7 Kg7 15.h3 Nh6 16.a4 a6 17.Nd2 Qf6 18.Ne4 Qe5 19.Nc5 Qc7 20.Qb2 Kg8 21.Bf3 Nf5 22.Bd5 ed5 23.e4 de4 24.Ne4 Ng7 25.d4 Rae8? 26.f3?? Re6 27.Rac1 Rfe8 28.d5 Qb6 29.Kh1 cd5 30.Nf6?? Rf6–+ 31.a5 Qd6 32.Rfd1 Rfe6 33.b5 ab5 34.Qb5 Re2 35.f4 Qf4 36.Qd5 Nf5 37.Rf1 Ng3 38.Kh2 Nf1 (38...Nf1 39.Kg1 Qh2 40.Kf1 Qh1) 0–1. elsh1403 – cv69 (1635), kurnik, 2011.

9.c4 dc4 10.Nc4 Qc7 11.Qb3 e5 (11...Rfd8 12.Rac1+=) 12.h3 (12.Nce5!? Be6 13.Qc2+/-) 12...Bf3 13.Bf3 (worse is 13.gf3 b5 14.Na5 c5+=) 13...Rae8 14.Rac1 e4 15.de4 Ne4 16.Bg7 Kg7 17.Be4 Re4 18.Rfd1 Ne5 (18...Nf6!?+=) 19.Nd6+– Rd8?? (better is 19...Rh4 20.f4 Nd7+/-) 20.Ne4 Rd1 21.Rd1 Qe7 22.Qc3 f6 23.Qd4 b6 24.a3 c5 25.bc5 bc5 26.Qd6 Qf7 27.Qc5 1–0. bratek55 (1640) – amator17, kurnik, 2011.

9.c4 Qc7 10.h3 Bf3 11.Bf3 e5 12.Qb3 Nb6 13.Rac1 Rad8 14.a4 Qe7 15.a5 Nc8 16.cd5 cd5 17.Rc2 e4 18.de4 de4 19.Be2 Nd6+= 20.Rfc1 Rc8 21.Nc4 Nc4 22.Bc4 Rcd8 23.b5 Nd7? 24.Ba3+– Nc5 25.Bf7! Rf7 26.Bc5 Qf6 27.Bd4 Qf5 28.Bg7 Kg7+/- 29.Qc3 Kh6 30.Qc5 Rd5 31.Qc8 Qc8 32.Rc8 Rb5 33.R8c5 Rc5 34.Rc5 Rf5 35.Rc7 b6 36.a6+/- b5 37.Ra7 Rf6 38.g4 Rb6 39.h4 b4 40.Rb7 Ra6 41.Rb4 Re6 42.Kg2 Re7 43.Kg3 Kg7 44.g5 Kf7 45.Kf4 Kg7 46.Re4 Rf7 47.Kg4 Rf2 48.Re7 Kg8 49.Ra7 Re2 50.Kf3 Rh2 51.Kg3 Rh1 52.e4 Rg1 53.Kf4 Rf1 54.Ke5 Rh1 55.Kf6 Rf1 56.Ke7?? Rf4 57.Ra4 Rh4+= 58.Ra8 Kg7 59.e5 Rg4 60.e6+– Rg5 (60...Rg5 61.Kd6 Rg1+–). bratek55 (1660) – amator17, kurnik, 2011.

9.c4 e5 10.Ne5+/- Ne5 11.Be5 dc4? (better is 11...Be2 12.Qe2 Qe7+/-) 12.Bg4+– Ng4 13.Bg7 (13.Qg4?! Be5 14.d4 c3+=) 13...Ne3?! (13...Kg7 14.Qg4 cd3+–) 14.fe3 Kg7 15.Nc4 b5 16.Ne5 Qc7 (16...Qe8 17.d4 f6 18.Ng4+–) 17.d4 Rae8 18.Qc2 Rc8 19.Rae1 a5 20.a3 ab4 21.ab4 Qd6 22.Qc3 f6 23.Nd3 Qd5 24.Nc5 Ra8 25.e4 Qg5 26.Ne6 (26.Ne6 Kg8 27.Ng5 fg5 28.Qc6+–) 1–0. ejdrzej (1735) – indi87 (1695), kurnik, 2012.

9.c4 e6 10.h3 Bf3 11.Bf3 a5 12.b5 cb5 13.cb5 a4 14.a3 Nc5 15.d4 Nce4 16.Ne4 Ne4 17.Be4 de4 18.Qc2 Qb6 19.Qe4 Qb5 20.Rab1 Qd5 21.Qd3 e5 22.e4 Qb3 23.Qb3+/- ab3 24.d5 Rfc8 25.Rfc1 Rc2 26.Rc2 bc2= 27.Rc1 Bf8?? 28.Kf1?? Ba3 29.Ba3+/- Ra3 30.Ke1 Rc3 31.Kd2+= Rc4 32.f3 Kf8 33.Rc2 Ra4 34.Rb2 Ra7 35.Ke2 Ke7 36.Kf2 f5 37.Kg3 Kd7 38.h4 Kc7 39.h5 fe4 40.fe4 Ra4 41.Rc2 Kd7 42.Re2 Ra7 43.hg6 hg6 44.Kg4 b5 45.Kg5 Ra6 46.Rb2 Rb6 47.g4 b4 48.Rb3 1–0. ejdrzej (1710) – pelkan (1650), kurnik, 2011.

9.c4 e6 10.h3 Bf3 11.Bf3 a6 12.Qc2 Re8 13.d4 b5 14.c5 a5 15.a3 Qe7 16.Be2 e5 17.de5 Ne5 18.Nf3 Nf3 19.Bf3 Ne4 20.Bg7 Kg7 21.Rfd1 Qe5 22.Be4 Qe4 23.Qc3 Qe5 24.Qe5 Re5 25.Rd4 ab4-/+ 26.Rb4 Re4 27.Rd4 Rd4 28.ed4 Ra4 29.Kf1 Rd4 30.Ke2 Rc4 31.g3 Rc5 32.a4 ba4 33.Ra4 Rc2 34.Ke3 c5 35.Ra5 d4 36.Kd3 Rf2 37.Rc5 Rf3 38.Kd4 Rg3 39.h4 Rg4 40.Kd3 Rh4 0–1. ejdrzej (1685) – vladimi37 (1735), kurnik, 2012.

9.c4 e6 10.h3 Bf3 11.Nf3 Qe7 12.a3 Rfe8 13.Qc2 Rac8 14.c5 e5 15.e4 d4 16.Bc1 Nh5 17.Nd2 Nf4 18.Nc4 Rc7 19.Bf4 ef4 20.Bf3 Ne5 21.Ne5 Be5 22.a4 a6 23.Qc4 Kh8 24.Rab1 h5 25.b5 ab5 26.ab5= cb5 27.Rb5 Rec8 28.Rfb1 Rc5 29.Rc5 Rc5 30.Rb7 Qb7 31.Qc5= Qb8 32.Qe7 Kg7 33.Kh2 Qd6 34.Qd6 Bd6 35.Kg1 Be5 36.Bd1 Kf8 37.Bb3 Ke7 38.Kf1 f6 39.Ke2 g5 40.Kf3 Kd6 41.Bc4 Kc5 42.g3 fg3 43.fg3 Kd6 44.g4 h4 45.Bb5 Kc5 46.Bc4 Kb4 47.Ba6 Kc3 48.Bc4 Kd2 49.Bb5 Ke1 50.Bc4?? Kf1–+ 51.Bb5 Kg1 52.Bc4 Kh2 53.Kf2 Kh3 54.Kf3 Kh2 55.Kf2 Bg3 56.Kf1 Kh3 57.Be6-/+ Kh2 58.Bf5?? Bf4 59.Kf2 Be3 60.Kf1 Kg3 61.Be6 h3 62.e5 fe5 63.Ke2 h2 64.Bd5 Kg4 65.Bf3 Kg3 66.Bh1 g4 67.Kf1 Kf4 68.Be4 g3 69.Kg2 Bf2 70.Bf3 Ke3 71.Be4 Kd2 72.Bf5 Ke1 73.Be4 h1Q! 74.Kh1 Kf1 75.Bg2 Ke2 (75...Ke2 76.Be4 Be1–+) 0–1. ejdrzej (1680) – drviak1 (1895), kurnik, 2012.

9.c4 e6 10.h3 Bf3 11.Nf3 Re8 12.Qc2 Rc8 13.c5 a6 14.a4 e5 15.a5 e4 16.de4 Ne4 17.Bg7 Kg7 18.Rad1 Qe7 19.Nd4 f5 20.Bd3 Ndf6 21.Nf3 Rcd8 22.Rfe1 h6 23.Qb2 Kh7 24.g3 Nh5 25.Be4 fe4 26.Nd4 Rf8 27.Rf1 Rf7 28.Qe2 Rdf8 29.Kg2 Qd7 30.g4 Nf6 31.Rd2 Qe7 32.f4 ef3! 33.Rf3? Ne4–+ 34.Rf7 Qf7 35.Rc2 Qf6 36.Qe1 Rf7 37.Rb2 Qe5 38.Rc2 Ng5 39.Rf2 Qe4 40.Kh2 Nf3 41.Nf3 Rf3 42.Rf3 Qf3 43.Qg3 Qe2 44.Kh1 Qd1 45.Kh2 Qd2 46.Kh1 Qc1 47.Kh2 Qb2 48.Kh1 Qg7 49.Qd6 Qf7 50.Kg2 Kg7 51.Qe5 Kh7 52.h4 Kg8 53.h5 gh5 54.gh5 Qg7 55.Qg7 Kg7 56.Kf3 Kf6 57.Kf4 Ke6 0–1. ejdrzej (1740) – skorpion67 (1755), kurnik, 2012.

9.h3 Be6 10.c4 Qc7 11.Qc2 dc4 12.dc4 Ne8 13.Bg7 Ng7 14.Bd3 Bf5 15.Rfd1 Ne5 16.Bf5 Nf3 17.Nf3 (worse is 17.gf3 Nf5 18.Ne4 Rfd8=) 17...Nf5 18.c5 Rad8 19.a4 Ng7 20.Rd8 Rd8 21.Rd1 Ne6 22.Rd8 Qd8 23.Qd2 Qd2+= 24.Nd2 f5 25.Kf1 Kf8 26.Ke2 Ke8 27.Kd3 Kd7 28.Nc4 Nc7 29.Nd2 Nd5 30.Kc4 e5 31.b5 Kc7 32.Nf3 e4 33.Nd4 Ne7 34.Ne6 Kb8 35.Nf8 h6 36.h4 g5 37.hg5 hg5 38.Ne6 g4 39.Nd4 a6 40.bc6 bc6 41.Ne6 Kb7 42.Kd4 Kc8 43.Ke5 Kd7 44.Nf8 Ke8 45.Ne6 Kd7 46.Ng7 1–0. ejdrzej (1840) – januszpalikot (1640), kurnik, 2012.

9.h3 Bf3 10.Bf3 Re8 11.c4 Nb6 12.c5 Nbd7 13.Be2 e5 14.f4 ef4 15.ef4 a5 16.Nf3 ab4 17.Ne5 Nc5 18.d4 Nce4 19.Bf3 Qc7 20.Be4 Ne4 21.Rc1 Ra2 22.Qb3 Qa5 23.Ra1 Ra1 24.Ra1 Qb6 25.Rb1 Be5 26.fe5 Nd2 27.Qc2 Nb1 28.Qb1 Qb5 29.Kh2 Ra8 30.Qe1 Re8 31.Bc1 b3 32.Bh6 Re6 33.Bg5 b2 34.Qb1 h6 35.Bf6 Qb3 36.h4 Qc3 0–1. aniabielak – chessguevara, kurnik, 2012.

9.h3 Bf3 10.Nf3 Qc7 11.c4 e5 12.Qc2 e4 13.de4 de4 14.Nd2 Rfe8 15.Rfd1 b6 16.a4 c5 17.b5 Qb7 18.a5 ba5 19.Ra5 Ne5 20.Rda1 Nfd7 21.Bc3 f5 22.Qa2?? Nd3?? 23.Ra7 Ra7+= 24.Qa7 Qa7 25.Ra7 Bc3 26.Ne4 fe4+= 27.Rd7 Ne5 28.Rc7 Bb4 29.g3 Rd8 30.Kg2 h5 31.g4 Rd2 32.Re7?? Nd3?? 33.Bd3+/- ed3 34.gh5?? Rb2+= 35.Rd7 d2 36.Kf1?? gh5 37.Ke2 h4 38.e4? Kf8 39.e5 Ke8–+ 40.Rd5 Rc2 41.b6 Ba5?? 42.b7+– Bc7 43.e6?? Rc4+= 44.Rd2 Rd4 45.Rb2 Bb8 46.Ke3? Ke7–+ 47.f3 Ke6 48.Rb6 Kd5 49.Rh6 Rb4 50.Rh5 Kc4 51.Rh4 Kb5 52.Rh8 Kc6?? 53.Rb8+– Rb7?? 54.Rg8 1–0. ejdrzej (1665) – frober (1725), kurnik, 2011.

9.h3 Bf3 10.Nf3 e5 11.Ne5 Ne5 12.Be5 Nh5 13.Bg7 Ng7 14.c4 Re8 15.cd5 cd5 16.d4 Qd6 17.a3 Rac8 18.Rc1 a6 19.Qd2 Ne6 20.Rc8 Rc8 21.Rc1 Qd7 22.Bg4 f5 23.Bf3 Rc1 24.Qc1 Qc7 25.Qb2 Qc6 26.Qb3 Nc7 27.a4 Kg7 28.b5! ab5 29.ab5 Qb5 30.Qb5 Nb5 31.Bd5 Nd6 32.f3 b6 33.e4 Nb5+= 34.ef5 gf5 35.f4 Nd4 36.Kf2 Kf6 37.Ba2 Ne6 38.Ke3 Nc5 39.g4 h6 40.Bb1 fg4 41.hg4 Ne6 42.Ke4 Nc7 43.Kf3 b5 44.Kg3 b4 45.Kh4 b3 46.Kh5 Kg7 47.g5 hg5 48.fg5 Nd5 49.Kg4 Nc3 50.Bf5 Ne2 51.Kh4 Nd4 52.Be4 Nc2 53.Kh5 Ne3 54.Kh4 Nc4 55.Kh5 Nd2 56.Bf5 Nf3 57.Kg4 Nd4 58.Be4 Ne6 59.Kh5 Nc5 60.Bf5 Na4 61.Be4 Nc3 62.Bf5 Ne2 63.Kg4 Kf7 64.Be4 Kg7 65.Bf5 Nd4 66.Be4 Nc2 67.Kh5 Ne3 68.Bd3 Nd5 69.Be4 Nf4 70.Kg4= Ne2 71.Kh5?? Nc3 72.Bf5+= Ne2 73.Kg4 ½–½. ejdrzej (1680) – skorpion67 (1720), kurnik, 2012.

9.h3 Bf3 10.Nf3 Re8 11.c4 e5 12.cd5 cd5 13.a4 b6 14.Rc1 Rc8 15.Qb3 Nf8? 16.Rc8 Qc8 17.Rc1 Qb8+/- 18.d4 ed4 19.Nd4 Qb7 20.b5 Ne6 21.Nc6 h6 22.Bf6 Bf6 23.Qd5 Kg7 24.Bf3 Qc7 25.Rd1 Nc5 26.a5! Re6 27.ab6 ab6 28.Nd4 Rd6?? 29.Nf5! gf5 30.Qd6 Qd6 31.Rd6 Ne4 32.Be4 fe4 33.Rb6 Bd8 34.Rc6 Kf8 35.b6 (35.b6 Bb6 36.Rb6+–) 1–0. ejdrzej (1650) – sllllon (1735), kurnik, 2011.

9.h3 Bf5 10.c4 dc4 11.Nc4 Nd5 12.Bg7 Kg7 13.Qc2 Nb4? (better is 13...N5f6+=) 14.Qc3+– f6 15.Qb4 g5 (15...b6 16.d4+–) 16.Rfd1 (16.Nd4!? e6 17.Nd6 Kh8 18.Qb7 Ne5 19.N4f5 ef5 20.Nf5 Rf7+–) 16...a5 (16...Nb6 17.a4+–) 17.Qc3 (17.Qb7 c5+–) 17...b5 (17...Nb8 18.e4 Bc8 19.Ne3+–) 18.Ncd2 (better is 18.Nd4 Kh8+–) 18...b4 19.Qb2 Qc8 (19...Nb6 20.Nd4 Bd7 21.Bf3+–) 20.Ng5 Kh6 21.Ngf3 Rg8 22.Nh4 Bh3 23.Bf3 Ne5 24.g3 Nd3 25.Qd4 Nf2?? 26.Kf2 e5 27.Qe4 f5 28.Qe5 Re8 29.Qf4 Kg7+– 30.Rac1 Qe6 31.Rc6 Qd7 32.Rc7 Re7 33.Rd7 Rd7 34.Nc4 Rd1 35.Bd1 Rd8 36.Qg5 (36.Qg5 Kf7 37.Bh5 Kf8 38.Qf6 Kg8 39.Bf7 Kf8 40.Bd5 Ke8 41.Qf7) 1–0. ejdrzej (1620) – fuszerdopotegi (1780), kurnik, 2011.

8.Nbd2 Bf3

9.gf3 Qd6+=.

9.Nf3 a6 10.Rc1 Nbd7 11.c4 dc4 12.dc4 e6 13.Qb3 Qc7 14.Rfd1 Rad8 15.c5 Nd5 16.Bg7 Kg7 17.g3 Kg8 18.e4 N5f6 19.Qc4 Ne5 20.Ne5 Qe5 21.Bf3 h5 22.h4 Ng4 23.Bg4 hg4 24.Kg2 Kg7 25.Rd3 Rd3 26.Qd3 Qb2 27.Qc3 Qc3 28.Rc3 Rd8 29.a3 Rd4 30.Re3 Kf6 31.f4 gf3 32.Kf3 Ke5 33.g4 Rd1 34.h5 Rf1 35.Kg2 Rf4? 36.Kg3?? Re4?? 37.Re4+– Ke4 38.h6 f5 39.h7 f4 40.Kf2 Kd3 41.h8Q e5 42.Qe5 1–0. bratek55 – naraf (1820), kurnik, 2011.

9.Nf3 Nbd7 10.c4 dc4 11.dc4 Nb6 12.Qb3 Nh5 13.Bg7 Ng7 14.Rfd1 Qc7 15.a4 Nd7 16.c5 Nf6 17.b5 (17.Bc4 e6+/-) 17...e6 (17...cb5!? 18.ab5 Qc5=) 18.Qc4 Rac8 19.Rd6 cb5 20.ab5 Qc5 21.Qc5 Rc5 22.Ra7 Ne4 23.Rd3 Rb5+= 24.g3 Rb2 25.Bf1 Nf5–+ 26.Rd7 Nc5 27.Rc7+= b6 28.Ne5 Rb1?? 29.Kg2?? h5 30.Nf7+– h4?? 31.Nh6!! Nh6 32.gh4 Nf5–+ 33.Kh3 Rb4 34.f4 Ne4 35.Bg2 Nf2# 0–1. bratek55 (1685) – bebi52 (1725), kurnik, 2011.

9.Nf3 Nbd7 10.c4 dc4 11.dc4 Qe8 12.Qb3 e5 13.Rfd1 e4 14.Nd4 Nb6 15.a4 Rd8 16.a5 Nc8 17.c5 Nd7 18.f4 b6? (18...ef3 19.gf3 Ne7 20.a6+=) 19.ab6 (better is 19.cb6!? Ne7 20.ba7+–) 19...ab6+/- 20.Nc6 bc5?? 21.Nd8 Qd8 22.Bg7 Kg7 23.bc5 Qf6 24.Ra6 Nc5 25.Rf6 Nb3 26.Rc6 Ne7 27.Rc7 Nf5 28.Kf2 Na5 29.g4 Nh4 30.Rdd7 Nb3 31.Bc4 Nc1 32.Bf7 Nd3 33.Kg3 Nf5 34.gf5 gf5 35.Bc4 Kg6 36.Bd3 ed3+– 37.Rd3 Re8 38.Rc6 Kh5 39.h4 h6 40.Rf6 Re3= 41.Kf2 Rd3 42.Rf5 Kh4 43.Rf6 h5 44.f5 Kg5 45.Rf8 Rd4 46.Kf3 Rf4 47.Kg3 Rf5 48.Rg8 Kh6-/+ 49.Rh8 Kg7 50.Ra8 Rb5 51.Ra4 Kg6-/+ 52.Kh4 Rc5 53.Ra6= Kf5 54.Ra4 Ke6 55.Re4 Kf5 56.Ra4 Kg6 57.Ra6 Kh7 58.Re6 Rf5 59.Re4 Kh6 60.Re6 Kh7 61.Re7 Kg6 62.Re6 Rf6 63.Rf6 Kf6 64.Kh5 ½–½. bratek55 (1610) – amator17, kurnik, 2011.

9.Nf3 Nbd7 10.c4 Nh5 11.Bg7 Ng7 12.Qb3 e6 13.c5 e5 14.a4 a6 15.g3 Qe7 16.Nh4 f5 17.e4 fe4 18.de4 Nf6 19.ed5 Nd5 20.Bc4 Rad8 21.Rad1 g5 22.Ng2 Ne6 23.Bd5 cd5 24.Rd5 Rd5 25.Qd5 Qf6 26.Ne3 Kg7? 27.Ng4 Qf5 28.Qe5 Qe5 29.Ne5 Nd4 30.Rd1 Nf5 31.Rd7 Kf6 32.Ng4 Kg6 33.Rb7 h5 34.Ne5 Kf6 35.Nd7 (35.Nd7 Ke7 36.Nf8 Kf8 37.Ra7+–) 1–0. bratek55 – ukete2, kurnik, 2011.

6.0-0 Qd6

7.a3 a5 8.b5 Nbd7 9.d4+=.

7.a3 a5 8.Nc3 c6=.

7.a3 Nbd7 8.c4 c6 (8...dc4 9.Bc4 e5 10.d3=) 9.d4 a5 10.c5 Qc7 11.b5 Ne4 (11...b6 12.cb6 Qb6 13.Nc3=) 12.b6+= Qb8 13.Qc2 f5 14.Nbd2 Bh6 15.Bd3 (15.Rab1 Bg7+/-) 15...Ndf6 (15...Bg7!?+=) 16.Ne5+/- Nd2 17.Qd2 Nd7 18.f4 Ne5 19.de5 e6 20.Rf3 Bd7 21.Rh3 Bg7 22.Bc3 a4 23.Bc2 Qd8 24.Qd4 Ra6 25.Be1 h6 26.Qb4 g5 27.Rf3 g4 28.Rf1 Rf7 29.Ba4 Bf8 30.Bd1 Qe7 31.Rc1 h5 32.Be2 Ra8 33.g3 Bc8 34.a4 Rg7 (34...Rh7 35.a5+/-) 35.Kh1 (35.Qd4 h4+/-) 35...Rh7 36.a5 Kh8 (36...Kf7 37.Qa4+/-) 37.Bf2 Kg8 38.Rc2 Qd7 39.Ra1 Qe7 40.Ra4 Kh8 41.Qa3 Qd8 42.Be1 Be7 43.a6+– ba6 44.Ba6 Qb6 45.cb6 Ba3 46.Ra3 Ra6+/- 47.Ra6 Ba6 48.Rc6 Re7 49.Bb4 Bb7 50.Rc1 Rd7 51.Kg1 Kg7 52.Bd6 Kf7 53.Ra1 Bc6 54.Bc7 d4 55.Bd6?? de3 56.Re1+/- Ke8 57.Re3 Kd8 58.Rc3 Bb7 59.Kf2 Ke8 60.Ke3 Rh7 61.Kd4 h4? 62.gh4 Rh4 63.Rc7 Be4 64.b7 Bb7 65.Rb7 Rh2 66.Re7 Kd8 67.Re6 Re2 68.Kd3 Re4 69.Rf6 Rf4 70.e6 Rf3 71.Ke2 Kc8 72.e7 Kd7 73.Rf8 Kd6 74.e8Q f4 75.Qg6 Kd5 76.Rf5 Kd4 77.Qd6 Kc3 78.Rc5 Kb2 79.Qb6 Rb3 80.Rb5 Rb5 81.Qb5 Kc3 82.Qe5 Kb3 83.Qf4 g3 84.Qg3 Kc4 85.Qe5 Kb4 86.Qc7 Kb5 87.Kd3 Kb4 88.Qc4 Ka5 89.Qb3 Ka6 90.Qb8 Ka5 91.Qb7 Ka4 92.Kc4 Ka3 93.Qb3 1–0. Kozlowski,Pawel – Posluszny,Tomasz, Ogolnopolska Olimpiada Mlodziezy C–12 Poland, 2014.

7.a3 Nbd7 8.d3 b6 9.c4 dc4 10.dc4 Qd1 11.Rd1 Bb7 12.Ne5 Rfd8 13.Nd7 Rd7 14.Rd7 Nd7 15.Nc3 Nf6 16.f3 Rd8 17.Kf1 Rd2 18.Na4 Bc6 19.Rd1 Rd6 20.Rd6 cd6 21.Bd1 g5 22.Bd4 Nd7 23.Nb2 1–0. Degterev,Pavel (2275) – Kotturi,Srinivas (1845), IECG, 2009.

7.a3 Nbd7 8.d4 Ne4 (8...Nb6 9.Nbd2=) 9.c4+= dc4 10.Qc2 c3 (10...Ndf6 11.Bc4 Be6 12.Be6 Qe6 13.Qc7+=) 11.Nc3 Nc3 12.Bc3 Nb6 13.b5 c5 (13...Nd5 14.Ba5+=) 14.Rfd1 Be6 15.e4 cd4 16.Bd4 Rac8 17.Qd2 Bd4 18.Nd4 Bc4 19.Qg5 (19.Bg4 Rc5 20.Qe3 Qf6+=) 19...Be2 (19...Qc5 20.Qc5 Rc5 21.Bc4 Rc4 22.f3=) 20.Ne2 Qc5 21.Qh4 (21.Qc5!? Rc5 22.Rac1 Rb5 23.Rc7=) 21...Qb5=+ 22.Nd4 Qe5 (22...Qa4 23.Qe7 Rfd8 24.Qb4 Qb4 25.ab4-/+) 23.Nf3 Qf6 24.Ng5 (24.Qf6 ef6 25.Nd4 Nc4=+) 24...Qg7 (24...h5 25.Rab1-/+) 25.Rab1 (25.Nf3 Rc7=+) 25...Rc4 26.Rb4 (26.Nf3 e5=+) 26...Rb4 (26...Rc3 27.a4 Rd3 28.Re1=+) 27.ab4 Rc8 (27...e5 28.Rc1=+) 28.Qh3 (28.e5 f6 29.Ne6 Qf7=) 28...h6=+ 29.Nf3 Qf8 30.Ne5 Kh7 31.Qe3 (31.Qb3 e6=+) 31...Nc4 32.Qf4 (32.Nc4 Rc4 33.Qa7 Qd8-/+) 32...Ne5 33.Qe5 Qd8 34.Qa1 (34.Rd8 Rc1 Mate attack) 34...Qb6 35.Qa2 e6 36.Qb2 (36.Qd2 Rc4 37.Qf4 Qc7 38.Qc7 Rc7-/+) 36...Rd8 37.Rd8 Qd8 38.g3 Qd6 (38...a6 39.e5-/+) 39.Qc3 (39.Qf6 Kg8 40.Qc3 b6-/+) 39...a6 40.f4 h5 (40...g5 41.fg5 hg5 42.Qf6 Qd1 43.Kf2 Qd2 44.Kf3-/+) 41.h4 (41.Kf2 b6=+) 41...Qd1 (41...b6 42.e5 Qd5 43.Kf2-/+) 42.Kf2 b6 43.Ke3 Qg1 44.Kf3 Qf1 45.Ke3 Qg2 46.Kd4 Qe2 (46...f6 47.e5 Qd5 48.Ke3 fe5 49.fe5-/+) 47.Ke5=+ Qb5 48.Kd6?? (better 48.Kf6 Qe8 49.Qc7 Qh8 50.Ke7=) 48...a5–+ 49.ba5 ba5 (49...Qa5?! 50.Qa5 ba5 51.Kc5=+) 50.Qc7 Kg7 (better 50...Qb4 51.Kd7 Qe4-/+) 51.Qc3= Kg8 52.Qc8 Kg7 53.Qc3 Kh7 54.Qc7 Qb4 55.Kd7 Qe4 56.Ke8 Qf5 57.Qc3? (better 57.Kf8!?-/+) 57...Kg8 (57...Qb5!? 58.Kd8–+) 58.Ke7 e5! 59.fe5 (59.Qe5 Qe5 Combination; 59.fe5 Qe6 Combination) 59...Qe6 60.Kd8 Qd5 (60...a4 61.Qa5 Qb3 62.Qa8–+) 61.Ke7 Qb7 62.Kf6? (62.Kd6 a4 63.Qa5–+) 62...Qb6 63.Kg5 (63.e6 Qe6 64.Kg5–+) 63...Qd8 (better 63...Qb4 64.Qd3 Kg7–+) 64.Kf4-/+ Qd7 (better 64...a4-/+) 65.Kg5? (better 65.Ke3 a4 66.Ke4-/+) 65...Kh7–+ 66.e6 Qd5 67.Kf4 Qf5 (67...fe6 68.Qc7 Kh6 69.Qe7 Qf5 70.Ke3–+) 68.Ke3 Qe6 (68...fe6?! 69.Qc7 Kh6 70.Qc3-/+) 69.Kf2 (69.Kd2–+) 69…a4 (69...a4 70.Qa1 Qb3–+) 0–1. Rehn,R (2155) – Nivala,T (2220), TCh–FIN (9), 2018. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 g6 4.e3 Bg7 5.Be2 0-0 6.0-0 Qd6)

7.a3 Bg4 8.h3 (8.Be5 Qd8=) 8...Bf3 9.Bf3 Ng4 10.Bg4 Bb2 11.Ra2 Bg7 12.c3 Nd7 13.Qb3 c6 14.c4 dc4 15.Qc4 Ne5 16.Qc5 Qc5 17.bc5 Nd3 18.Be2 Rfd8 19.a4 Nc5 20.Rc1 (20.d4 Nd7-/+) 20...Nd3–+ 21.Bd3 Rd3 22.Kf1 e5 23.Nc3 Rad8 24.Ke2 Bf8 25.Ne4 Bb4 26.a5 f5 27.Ng5?? Rd2–+ 28.Rd2 Rd2 29.Kf3 Ba5 30.Ne6 Bb6 31.Nc5 e4 32.Kg3 Bc7 33.f4 Bb6 34.Kh4 Rg2 35.Rc3 Bd8# 0–1. Neumann,Frank (1650) – Elwing,Wolfgang (2240), RS–Pyramide remoteschach.de, 2008.

7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bf5 11.d4 Nbd7 12.Bb2 Ra8 13.c4 c5 14.Qb3 Nb6 (14...e6 15.cd5 ed5 16.dc5 Nc5 17.Qd1=) 15.Nbd2 dc4 16.Nc4 Nc4 17.Bc4 e6 18.Rd1 Rd8 19.b6 cd4 20.Nd4 e5? (20...Ng4 21.g3 Be4 22.Ba3=) 21.Ba3 (better is 21.Bf7!? Kh8 22.Ba3+/-) 21...Qd7= 22.Bb5 Qd5 23.Bc4 Qd7 24.Bb5 Be6 25.Qa4 Qd5 26.Be7 Rc8 27.Bf6 Bf6 28.Ne6 Qe6 29.Bd7 Qc4 30.Qa7 Qc2 31.Rf1 Rf8 32.Qb7 Bd8 33.Qa7 Bb6? 34.Qb6 Kg7 35.Qc6 Qc6 36.Bc6 f5 37.Rd1 Kf6 38.Rd6 Kg5 39.g3 Rf6 40.Rf6 Kf6 41.Kg2 g5 42.f4 g4 43.h3 gh3 44.Kh3 e4 45.g4 h6 46.gf5 Kf5 47.Kh4 Kf6 48.Be4 Ke6 49.Kh5 (49.Kh5 Kf6 50.Bd5+–) 1–0. Khannanov,Ruslan (1715) – Arslanov,Marat, Ufa RUS, Gumerov Mem, 2012.

7.b5 Bg4 8.d4 c6 9.Ba3 Qc7 10.bc6 Nc6 11.c4 Rfd8 12.Nbd2 dc4 13.Nc4 Bf3 14.Bf3 Nd4 15.ed4 Qc4 ½–½. Kalashnikov,Konstantin (2380) – Oganisjan,Roman (2335), Sibiria Region–ch, 2003.

7.Be5 Qb4 8.Bc7=.

6.0-0 Nbd7

7.a3 c5=.

7.a4 b6 8.d3 Bb7 9.Nbd2 Rc8 10.c4 e6 11.c5 bc5 12.bc5 Nc5 13.Ba3 Nd3 14.Bf8 Nf2 15.Rf2 Qf8 16.Rb1 Rb8 17.Ne5 c5 18.Nd7 Qd8 19.Nb8 Qb8 20.Ba6 1–0. Adjailton (1830) – calmist (1620), lichess.org, 2020.

7.c4 a6 8.Qc2 dc4 9.Bc4 b5 10.Bb3 Bb7 11.Nc3 (11.d4 Nb6=) 11...Rc8?? (better is 11...Bf3 12.gf3 Ne5-/+) 12.d4+= Bf3 13.gf3 e6 14.Kh1 Nb6 15.Rg1 Nfd5 16.a3 Qf6 17.Qe2 Rfe8 18.Ne4 Qe7 19.Rad1 Nd7 20.f4 h6 21.Qf3 c6 22.Ba1 (better is 22.Rg3!?+/-) 22...a5= 23.Nc5 Nc5 24.dc5 ab4 25.e4 Nc7 26.Rd6?? (26.Bg7!? Kg7 27.ab4+=) 26...Red8 (26...ba3 27.Bg7 Kg7 28.f5-/+) 27.e5 (better is 27.Bg7 Kg7 28.ab4 Rd6 29.Qc3 Kg8 30.cd6 Qd6 31.f5=) 27...Nd5?? (better is 27...ba3 28.f5 gf5 (28...ef5 29.Rdg6 Ne6 30.Rh6+–) 29.Qc6 Kh7-/+) 28.ab4+= Qe8 29.Bd5 ed5 30.Qg4 (30.f5!? Ra8+/-) 30...Bf8 31.Rd8 Rd8 (31...Qd8?? 32.e6 Qc7 33.ef7 Qf7 34.Qc8+–) 32.f5 Kh7?? (better is 32...Ra8+/-) 33.e6+– h5 (33...fe6 34.fg6 Kg8+–) 34.Qd4 Bh6 35.Qf6 (35.ef7 Qe6 36.fe6 h4 37.Qf6 Rg8 38.fg8Q Kg8 39.Qf7) 35...d4+– 36.Bd4 Rd4 37.Qd4 gf5 38.ef7 Qf7 39.Qd6 Qe8 40.Qd4 (better is 40.f3!? Bf8 41.Qf6 f4+–) 40...Qf7 41.Re1 Bg7 42.Qd6 Qc4 (42...Qg6 43.Qg6 Kg6 44.Re6 Kf7 45.Rc6+–) 43.Qe6 Qd3 44.Qc6 Qc3 (44...Qb3+–) 45.Rg1 Qb4 46.Qg6 1–0. Macedo,A Soares De (2005) – Bonifacio,L I Galdino, IRT NATAL OPEN, 2009.

7.c4 dc4 8.Bc4 Nb6 9.Be2=.

7.c4 dc4 8.Bc4 c5 9.bc5 Nc5 10.d4 (10.Bf6 Bf6 11.d4 Ne4=) 10...Nce4 (10...Be6 11.Be6 (worse is 11.dc5 Bc4 12.Re1 Qd1 13.Rd1 Be2+=) 11...Ne6 12.Qb3=) 11.Nbd2 b6 (11...Bg4 12.Qb3=) 12.Qb3 (12.Rc1 Nd6+=) 12...Nd2 (12...Nd6 13.Bd3=) 13.Nd2+= Bb7 14.Rfd1 (14.Rfc1 Rc8+=) 14...Rc8= 15.f3 (15.Rac1 Bd5=) 15...Qc7 (15...Nd5 16.e4 Nc7 17.d5+=) 16.Rac1+= Qd7 17.e4 Nh5 (17...Bc6 18.Ba6 Rcd8 19.Rc4+=) 18.d5 Bb2 (18...Qd6 19.Bg7 Ng7 20.Qe3+=) 19.Qb2 g5 (19...Rc5 20.Nb3 Rc7 21.Nd4+=) 20.Qe5 (20.Bb5 Rc1 21.Rc1 Qd6+/-) 20...h6 21.h4 Qc7+= 22.Qc7 Rc7 23.Bb3 Rfc8 24.Rc7 Rc7 25.hg5 hg5 26.Kf2 Nf4 27.Kg3 Kg7 28.Re1 Ba6 29.e5 Ne2 30.Kg4 f6 31.d6 ed6 32.ef6 Kg6 33.Ne4?? Bc8 (33...Bc8 34.Be6 Be6#) 0–1. Thompson,Cedric – Juliao,Cesar, Pan American 1st, 1974.

7.c4 c5 8.a3 cb4 (8...a5 9.bc5 dc4 10.Bc4 Nc5 11.d4=) 9.ab4= dc4 10.Na3 Nb6 11.Nc4 Nc4 12.Bc4 Bd7 13.Qc2 Bc6 14.Ne5 Be4 (14...Bd5!? 15.d3 Qd6+=) 15.d3+/- Bc6 (15...Bd5 16.Ra5+/-) 16.Nc6 bc6 17.Ra6 Nd5 18.Bg7 (18.Rc6 Nb4 19.Qa4 Nc6 20.Bg7 Kg7 21.Qc6 Qd6–+) 18...Kg7 19.Rc6 f6 20.Qb3 Nb6 21.Be6 Rb8 22.Rfc1 Nd7 23.Rc7 Ne5 24.d4 Qd6 25.de5 Qe6 26.Qe6 (26.Qe6 Rf7 27.ef6 Kh6 28.R1c5 ef6 29.Qf7 f5 30.Rf5 gf5 31.h4 Rb4 32.Qh7) 1–0. usingprogram (2080) – ramizi20, kurnik, 2011.

7.c4 c5 8.bc5 Nc5 9.cd5 Nd5 10.Bg7 Kg7 11.Qc1 b6 12.Qb2 Nf6 13.d4 Nce4 14.Nbd2 Bb7 15.a4 Rb8 16.a5 b5 17.a6 (worse 17.Qb5 Nd2 18.Nd2 Bg2 19.Qb8 Qb8 20.Kg2 Qb2-/+) 17...Ba8 18.Ne4 (18.Bb5? Nd2 19.Nd2 Qd5-+) 18...Ne4 19.Qb4 (19.Ne5 b4+=) 19...Qd6= 20.Rfb1 Rfc8 21.Qd6 Nd6 22.Ne5 Rc7 23.Bf3 (23.Rc1 Rbc8 24.Rc7 Rc7=) 23...Bf3=+ 24.gf3 Nc4 25.Rc1 Rbc8 26.Nd3 Kf8 (26...Rc6 27.Rab1 Rb6 28.f4=) 27.Kg2 (27.Rab1 Nd6=) 27...Ke8 28.Rcb1 Rb8 29.Nc5 Rb6 30.Rb4 (30.f4 f5=) 30...e5=+ 31.Nb3 ed4 32.Nd4 Nd6 33.e4 Rc4 34.Rab1 (34.Rc4 Nc4 35.Rc1 A) 35...Ra6? 36.Nb5 Rb6 37.Nc7 (37.Rc4 Rb5 38.Rc7 Rg5 39.Kf1 Ra5=+) 37...Kd7 38.Rc4+-; B) 35...Kd7=+) 34...Rb4=+ 35.Rb4 Ra6 (35...f6 36.Ne6=+) 36.Nb5 (36.e5 Nc8 37.Rb5 Ra4=) 36...Nb5=+ 37.Rb5 Rb6 38.Ra5 a6 39.f4 Kd7 40.f5 Rf6 41.fg6 hg6 42.e5 Rc6 43.Kg3 Kc7 44.Kg4 Kb6 45.Ra1 Rc2 46.Kg3 a5 47.f4 Rc6 48.Kg4 Kb5 49.Rb1 Ka6 50.Ra1 Kb6 51.h4 Rc4 52.Kg5 Re4 (52...Kb5 53.f5 gf5 54.h5+/-) 53.Rb1 (53.Rf1!? Rc4 54.f5 gf5 55.h5+/-) 53...Kc6+= 54.Rc1 (54.Rd1!? a4 55.Rd8+=) 54...Kd7= 55.Rc5 a4 56.Ra5 Ke7 57.f5 gf5 58.h5 Re1 ½-½. Bulavin,A (2255) - Bryakin,M (2435), St Petersburg RUS, 2019. (=1.Nf3 d5 2.e3 Nf6 3.b4 g6 4.Bb2 Bg7 5.Be2 0-0 6.0-0 Nbd7)

7.c4 e6 8.Qc2 b6 (8...dc4 9.Bc4 Nb6 10.Be5=) 9.d4 dc4 10.Bc4 Bb7 11.Nbd2 Qe7 12.b5 Rfc8 13.Qb3 Ne4 14.Ne4 Be4 15.Nd2 Bb7 16.Be2 Bd5 17.Bc4 Bb7 18.Be2 c5 19.bc6 Bc6 20.Bf3 Bf3 21.Nf3 Nf6 22.Rfc1 Qb7 23.Qd3 ½–½. Grossmann,Philipp – Stoeckl,Stephan, Oberpfalz–ch M1, 1999.

7.c4 e6 8.d4 a5 9.a3 dc4 10.Bc4 Nb6 11.Be2 ab4 12.ab4 Ra1 13.Ba1 Ne4 (13...Qd6 14.Qc2=) 14.Qc2+= Nd6 15.Rc1 c6 16.Nbd2 Bd7 17.Nb3 Qe7 18.Nc5 Ra8 19.Bc3 Nd5 (19...Bc8 20.e4+/-) 20.Be1 (20.Bd2 Be8+/-) 20...Be8+= 21.Qb2 (21.e4 Nf4+=) 21...Nb5 (21...b6 22.Nb3=) 22.Ne5 (22.Bb5 cb5 23.Ne5 Nb6+=) 22...Nb6 (22...f6 23.Nf3=) 23.Ra1+= Ra1 24.Qa1 f6 25.Nc4 Nd5 26.Qa8 b6 27.Nd3 Nbc3? Exerts pressure on the isolated pawn (27...e5!? 28.de5 fe5+=) 28.Bf1 (28.Bc3 Nc3 29.Bf3 Nd5+-) 28...Nb5 29.Qb8 Bf8 (29...Kf8 30.Nb6 Qc7 31.Qc7 Ndc7 32.Nc5+-) 30.Nb6+- Nbc7 (30...Qf7 31.Nc4+-) 31.Nc5 (31.Nc4 Nb5+-) 31...Nb6 32.Qb6 Nd5 33.Qb8 e5 34.Bc4 (34.de5!? Qe5 35.Qe5 fe5 36.e4+-) 34...ed4+/- 35.e4 Kg7? (better 35...Bf7 36.Qa8 f5 37.Qc6 Nf4 38.Bf7 Qf7+/-) 36.Bd2+- (36.Bd5?! cd5 37.Qb6 Bf7=) 36...Nc7 (36...Nc3 37.e5! Nd5 38.Bd5 cd5 39.ef6 Kf6 40.Qf4 Kg7 41.Qd4 Kg8 42.Bc3+-) 37.Qc7!! Qc7 38.Ne6 Kh8 (38...Kg8 39.Nc7 Bf7 40.Ne6+-) 39.Nc7 Bd7 40.b5 (40.Be6 Be6 41.Ne6 Kg8+-) 40...Bd6 (40...cb5 41.Nb5 Bc5 42.Kf1+-) 41.b6 c5 (41...g5 42.Bb4! c5 43.Ba3+-) 42.Nd5 Bb8 (42...Bc6 43.Nf6 Kg7 44.Nd5 Bd5 45.Bd5+-) 43.Ba5 (43.Nf6!? Bc6+-) 43...f5 44.ef5 Bf5 45.b7 d3 (45...Be4 46.Bb6 d3 47.Kf1+-) 46.Bd2 (better 46.Bc3 Kg8 47.Nf6 Kf8+-) 46...Kg7 47.f3 1-0. Shuvalov,E (2180) - Belenkaya,D (2290), Titled Tuesday, 2021.

7.d3 b6 8.Nbd2 Bb7 9.c4 c6 10.Qc2 Rc8 11.Rac1 Re8 12.a4 e5 13.Qb3 e4 14.de4 de4 15.Nd4 c5 16.bc5 Nc5 17.Qa2 Qd7 18.a5 Na4 19.ab6 Nb2 20.Qb2 a6 21.N2b3 Ng4 22.Bg4 Qg4 23.h3 Qg5 24.Qe2 Rcd8 25.Qg4 Qg4 26.hg4 Bc8 27.c5 Bg4 0–1. Phomopsis (1705) – sergioempa (1755), lichess.org, 2019.

7.d3 c5 8.a3 Qc7 9.Nbd2 Re8 10.c4 e5 11.Qc2 Qd6? (11...e4 12.Ne1 ed3 13.Bd3 cb4 14.ab4=) 12.b5 (better is 12.bc5!? Qc6 13.d4+/-) 12...b6 13.a4 Bb7 14.a5 e4 15.de4 de4 16.Ne1 Rad8 17.a6 Ba8 18.Rd1 Qc7 19.Qb3 Ne5 20.f3 ef3 21.Nef3 Neg4-/+ 22.Rfe1? Ne3–+ 23.Rc1 Nfg4?? 24.Bg7-/+ Rd2 25.g3?? Bf3 26.Bf3 Rh2 (26...Rh2 27.Be5 Qe5 28.Re2 Qg3 29.Rg2 Rg2 30.Bg2 Qg2#; 26...Kg7 27.Bg4 Qe5 28.Bf3–+) 0–1. Lebedel,Marc (1675) – Guibert,Jeremy (1930), Gorges op, 2007.

7.d3 c5 8.bc5 Nc5 9.Nbd2 Qb6 10.Rb1 Qa6? (better is 10...Qe6=) 11.d4+– Nce4?? (11...Qa2 12.dc5 Rd8+–) 12.Ba6 ba6 13.Ne4 de4 14.c4 (14.Ne5 Nd7+–) 14...a5 15.a4 ef3 16.Qf3 Rb8 17.Ba3 Bb7 18.Rb7 e5 19.Rb8 Rb8 20.de5 (20.de5 Ne8 21.Bd6+–) 1–0. exp2005 – kacperek35, kurnik, 2011.

7.d3 c6 8.Nbd2 a5 9.ba5 Qa5 10.c4 Re8 11.Qc2 Qa4 12.Qa4 Ra4 13.a3 e5 14.cd5 cd5 15.e4 de4 16.de4 Ne4 17.Ne4 Re4 18.Bd3 Ra4 19.Bb5 Ra5 20.a4 Ra8 21.Rfd1 Rd8?? 22.Be5!+– b6 23.Bc7 Ba1 24.Bd8 Bg7 25.Bd7 Bd7 26.Rd7 Ra4 27.g3 h5 28.Bb6 Ra3 29.Kg2 Ra2 30.h4 Rb2 31.Bd4 Bh6 32.Bb2 1–0. ejdrzej (1665) – janjanin (1850), kurnik, 2012.

7.d3 c6 8.Nbd2 Qc7 9.c4 e5 10.Qb3 Nb6? (10...Rd8 11.cd5 Nd5 12.a3=) 11.Rac1 (better is 11.Be5 Qd8 12.c5+–) 11...dc4 12.dc4 Re8 13.Ng5 h6 14.Nge4 Ne4 15.Ne4 Be6 16.Qc2 f5 17.Nc5 Bf7 18.a4 Nc8 19.Nb3 b6 20.c5 Ne7 21.Bc4 Nd5 22.cb6 ab6 23.Bd5 Bd5 24.Rfd1 Qd7 25.f3 Qe6 26.Nd2 Rac8 27.e4 fe4 28.Ne4?? Bb3-/+ 29.Qc3 Bd1 30.Rd1 c5 31.b5 Kh7 32.h3 Red8 33.Re1 Rd5 34.Nd2 Rcd8 35.Nc4 Rd4 36.Rc1 Rd3 37.Qc2-/+ e4 38.Bg7 Kg7 39.fe4 Qe4 40.Qb2? Kh7 41.Qf6-/+ Rd1 42.Rd1?? Rd1–+ 43.Kh2 Qc4 44.Qe7 Kh8 45.Qf8= Qg8 46.Qf6?? Kh7 47.Qe7 Qg7 48.Qe2 Rd4 0–1. bratek55 (1665) – bojimse, kurnik, 2011.

7.d3 Re8 8.Nbd2 e5 9.c4 c6 10.a4 Qe7 11.b5 h6 12.Qc2 e4 13.de4 Ne4 14.Bg7 Kg7 15.a5 Nd2 16.Nd2 Nf6 17.cd5 cd5 18.Nf3 Bf5 19.Qb2 Kh7 20.Rac1 Rac8 21.h3 g5 22.Nd4 Bg6 23.a6 Rc1 24.Rc1 ba6 25.ba6 Qe5 26.Bf3 Rb8 27.Qc3 h5 28.Qc7 Qc7 29.Rc7 Rb1 30.Kh2 g4 31.hg4 hg4 32.Be2 Ne4 33.Bd3 Rb6 34.Be4 Be4 35.Ra7 g3? 36.Kg3 Rg6 37.Kh2 Rg2+/- 38.Kh3 Rf2 39.Re7 Rf6 40.a7 Ra6 41.Rf7 Kg6 42.Rc7 Kg5 43.Kg3 Kf6?? 44.Kf4 Kg6?? 45.Rc6 Rc6 46.Nc6 d4 47.a8Q Bc6 48.Qc6 Kf7 49.ed4 Ke7 50.Ke5 (50.Ke5 Kf7 51.Qh6 Kg8 52.d5 Kf7 53.Qh7 Ke8 54.Ke6 Kd8 55.Qd7#; 50.Kf5 Kd8 51.Qb7 Ke8 52.Ke6 Kd8 53.Qd7#) 1–0. ejdrzej (1650) – maxizeusik, (1705), kurnik, 2012.

7.d3 Re8 8.Nbd2 e5 9.c4 c6 10.Qb3 Nb6? (10...a5 11.a3=) 11.Rfd1 (11.Be5 Bg4 12.Rfe1 dc4 13.dc4 Nbd7+/-) 11...e4 12.de4 Ne4 13.Ne4 Bb2 14.Qb2 Re4 15.cd5 cd5 16.Rac1 Qe7 17.a3 Bg4 18.h3 Bf5 19.Bd3 Nc4 20.Qb3 Re3? 21.fe3 Qe3 22.Kh1 Ne5 23.Ne5 Bh3 24.Qd5 Be6 25.Qe4 Qh6 26.Kg1 Re8 27.Qf3 Bb3 28.Ng4 Qg5 29.Re1 Rd8 30.Bc4 Bc4 31.Rc4 Kg7 32.Qc3 Kg8 33.Nf6 Kf8 34.Ne4 Qh4 35.Rf1 f6 36.Qf6 Qf6 37.Nf6 Kg7 38.Ne4 Rd3 39.Rc7 (39.Rc7 Kh6 40.Rff7 Kh5 41.Rc5 Rd5 42.Rd5 Kh6 43.Nf2 g5 44.Rd6 Kh5 45.Rh7#) 1–0. bratek55 (1665) – marfrp (1630), kurnik, 2011.

7.d3 Re8 8.Nbd2 e5 9.c4 e4 10.de4 de4 11.Nd4 Ne5 12.a4 Nd3 13.Bd3 ed3 14.Qb3 Be6 15.Qd3 c5 16.bc5 Qc7 17.Ne6 Re6 18.Bd4 Rd8 19.Nf3 Qc5 20.Bc5 Rd3 21.Ba7 Ne4 22.Nd4 Nd2? 23.Ne6 (23.Ne6 Ba1 24.Ra1 fe6 25.c5+–) 1–0. horacyad2010 – altana, kurnik, 2011.

7.d4 a5 8.ba5 Ra5 9.c4=.

7.d4 a5 8.b5 c6 9.a4 cb5 10.ab5 b6 11.c4 dc4 12.Bc4 Bb7 13.Ng5 h6 14.Nf7 Rf7 15.Bf7 Kf7 16.Qb3 Kf8 17.Nd2 Qc7 18.Rac1 Qd6 19.Nc4 Qd5 20.f3 Rc8 21.e4 Qg5 22.f4 Qg4 23.h3 Qh5 24.e5 Ne4 25.e6 Ndf6 26.Ne5 Rc1 27.Bc1 Qe2 28.Qe3 Qb5 29.Ng6 Ke8 30.Nh4 Qd5 31.f5 Ng5 32.Bd2 Nfe4 33.Be1 Bd4 34.Qd4 Qd4 35.Kh1 Qd3 36.Nf3 Nf3 37.Rf3 Qd1 38.Re3 Ng5 39.Kh2 Qc1 40.Rc3 Qe1 41.Rc7 Qe5 0–1. Adjailton (1780) – Mr_Hollywood (1765), lichess.org, 2019.

7.d4 b6 8.Nbd2 Bb7 9.a4 c5 10.bc5 bc5 11.dc5 Nc5 12.Bd4 Ncd7 13.Rb1 (13.Ra3 Bc6=) 13...Qc7 (13...Bc6 14.Bb5 Bb5 15.Rb5=) 14.c4 Rfb8 (14...Rfc8 15.cd5 Bd5 16.Ba6=) 15.Qc2 (15.Rc1!? dc4 16.Rc4=) 15...Ba6 16.Qc3 Rc8 (16...Rb1 17.Rb1 Rc8 18.h3=) 17.Rfc1 e6 18.Bf1 dc4 19.Bc4 Qd6 20.Qa5 (20.Qa1 h6+=) 20...Bc4= 21.Nc4 Qf8 (21...Qd5 22.Nfd2=) 22.Nfd2 (22.Ba7 Nd5 23.e4 Nc3 24.Rc3 Bc3 25.Qc3 Ra7-/+) 22...Nd5 23.Bg7 (23.Ba7?? Rc7 24.Qc7 Nc7–+) 23...Qg7 24.Rb7 (24.Nf3 N5b6 25.Nce5 Rc1 26.Rc1 Ne5 27.Ne5 f6+=) 24...Nc5 (24...Ne5 25.h4 (25.Ra7? Ra7 26.Qa7 Nc4–+) 25...a6 26.Rbb1-/+) 25.Ra7= Rab8? (better is 25...Qf8 26.Ra8 Ra8=) 26.Nd6+/- Qb2 (better is 26...Rc6!? 27.Rf1 Rd6 28.Qc5 Rdd8+/-) 27.Rf1+– (27.Rc5?! Rc5 28.Qc5 Qd2+/-) 27...Nd3? (27...Rc6 28.Nf7 Nb7 29.Rb7 Qb7+–) 28.Nc8 Rc8 29.Ra8 (29.Qa6 Qb8 30.Ne4 N5b4+–) 29...Ra8 30.Qa8 Kg7 31.Ne4 ½–½. Huelle,Gunter – Straile,Ruediger (1680), Leipzig VfB op, 2002.

7.d4 Nb6=.

7.d4 c6 8.Bc3=.

7.d4 c6 8.c4 dc4 9.Bc4 e6 10.Nbd2 Nb6 11.Be2 a5 12.ba5 Ra5 13.a4 Nbd7 14.Bc3 Ra8 15.a5 Re8 16.Nc4 Qe7 17.Qb1 Nd5 18.Bd2 e5 19.de5 Ne5 20.Nce5 Be5 21.Ne5 Qe5 22.Bf3 Rb8 23.Qd1 Bf5 24.a6 ba6 25.Ra6 Rec8 26.Ra1 Be4 27.Be4 Qe4 28.h3 Re8 29.Qe2 Qf5 30.Rfc1 Rbc8 31.Ra6 Re6 32.Be1 Qf6 33.Qc4 Kg7 34.Bc3 Nc3 35.Qc3 Qc3 36.Rc3 Kf6 37.f4 c5 38.Re6 Ke6 39.Kf2 Kf5 40.Kf3 g5 41.g4 Kg6 42.e4 f6 43.f5 Kh6 44.Ke3 Kg7 45.Kd3 h6 46.Kc4 Kf7 47.Kb5 Ke7 48.Rc5 Kd6 49.Rc1 Rc1 0–1. joaquimbage – szczu1pak, kurnik, 2012.

7.d4 c6 8.Nbd2 a6 9.c4 dc4 10.Nc4 Nb6 11.Nce5 Nfd5 12.a3 f6 13.Nd3 Re8 14.Nc5 e5 15.Qb3 Kh8 16.a4 Nd7 17.de5 Ne5 18.Ne5 fe5 19.Rad1 e4 20.Bc4 b6 21.Bg7 Kg7 22.Bd5 cd5 23.Rd5 Qf6 24.Nd7+– Qe6 25.Nb6?? Qb6-/+ 26.Qc3 Qf6 27.Qc5 Be6 28.Re5 Rac8 29.Qa5 Red8 30.h3?? Rd2 31.Rc5 Rc5 32.Qc5 Rd5 33.Qc7 Kh6 34.Rc1 Rg5 35.Kh2?? Qf2–+ 36.Rc2 Qg3 37.Kh1 Qe1 38.Kh2 Qg3 39.Qg3+– Rg3 40.Kg3 1–0. bratek55 – petricus, kurnik, 2011.

7.d4 c6 8.Nbd2 Qc7 9.c4 Re8 10.Rc1 Qb6 11.Qb3 a5 12.b5 cb5 13.cb5 Ne4? (better is 13...Nf8!?+=) 14.Ne4+– de4 15.Nd2 (better is 15.Ng5!? Qf6 16.Ne4+–) 15...Nf6+/- 16.a4 Be6 17.Qc2 Rec8 18.Qb1 Bd5 19.Bc4 Qe6 20.Bd5 Qd5 21.Ba3 e6 22.Rc5 Rc5 23.Bc5 h5 24.Rc1 h4 25.h3 g5? 26.Ba3 Qf5 27.Rc5 Qg6 28.Rc7 g4 29.hg4 Qg4 30.Rb7 h3 31.g3?? Rc8?? 32.Bc5?? Bh6?? 33.Qf1 Be3? 34.fe3+– Qg3 35.Kh1 1–0. tadziczek – giovanni5, kurnik, 2012.

7.d4 Ne4 8.c4 c6 9.Qb3 Ndf6 10.Nbd2 Bg4 11.Qc2 Nd2 12.Qd2 Ne4 13.Qc2 f5 14.Rac1 e6 15.Ne5 Be2 16.Qe2 Nd6 17.c5 Be5 18.de5 Nc4 19.Rfd1 Qe7 20.Rc4 dc4 21.Qc4 Rad8 22.Rd6 Rd6 23.ed6 Qd7 24.Qh4 e5 25.Be5 Qe6 26.f4 b6 27.b5 cb5 28.c6 Qd5 29.Qe7 Qf7?? 30.Qb7 Qb7 31.cb7 Kf7 32.d7 Ke6 33.b8Q Rb8 34.Bb8 Kd7 35.Ba7 Kc7 36.e4! fe4 37.g4 Kb7 38.f5 gf5 39.gf5 Kc6 40.f6 (40.f6 Kd7 41.Bb6+–) 1–0. Senkyr,V (2200) – Paldus,P (2050), Open C, Marianske Lazne CZE, 2010.

7.d4 Ne4 8.Nbd2 Ndf6 9.Rc1 c6 10.c4 Bg4 11.Ne5 Be2 12.Qe2 Nd2 13.Qd2 Ne4 14.Qe2 Be5 15.de5 Ng5 16.h4 Ne6 17.Qg4 h5 18.Qg3 dc4 19.Rc4 Qd2 20.Bd4 Qa2 21.Rfc1 Ng7 22.e4 Ne6 23.f4 Nd4 24.Rd4 Rad8 25.Rcd1?? Rd4–+ 26.Rd4 Qa1 (26...Qa1 27.Kh2 Qd4–+) 0–1. bratek55 – bezdomnymenel (1715), kurnik, 2011.

7.d4 Re8 8.Nbd2 c6 9.c4+= dc4 10.Nc4 Nb6 11.Nce5 Nfd7 (better is 11...Nbd5+=) 12.Nf7?? (better is 12.Qc2+=) 12...Qc7?? (12...Kf7 13.Qb3 Nd5=) 13.Qb3 e6 14.N3g5 h6? 15.Nh6 Bh6+= 16.Ne6 Re6 17.Qe6 Kf8?! 18.Qg6 Bg7 19.e4 Nf6 20.d5 (20...Qf4 21.dc6 bc6 22.Rad1+–; 20.Rae1 Qf7 21.Qf7 Kf7+–) 1–0. Lauermann,Answarth – Schoepe,Jan, Kassel op, 1994.

7.d4 Re8 8.Nbd2 c6 9.c4 dc4 10.Bc4 Qc7 11.Qb3 e6 12.a4 Nb6 13.Be2 Nbd5 14.Rfc1 Bd7 15.b5 Rab8 16.e4 Nf4 17.Bf1 N6h5 18.e5 Bh6 19.g3 Nd5 20.g4 Nhf4 21.g5 Bg7 22.Ne4 Qd8 23.Nf6 Kh8 24.Ba3 h6 25.Nd7 Qd7 26.Bd6 Rbc8 27.a5 Qd8 28.bc6 bc6 29.Qb7 hg5 30.Qf7 Rg8 31.Qa7 g4 32.Qb7 gf3 33.Rc6 Rc6 34.Qc6 Qg5 0–1. Orang4Utan (1865) – deepblue78 (2045), lichess.org, 2020.

7.Bd4 b6 8.b5 Bb7 9.a4 c5 10.bc6 Bc6 11.Nc3 Nc5 12.a5+= Nce4 13.ab6 Nc3 14.Bc3 ab6 15.Ra8 Qa8 16.Qb1 Qb7 17.Bd4 Nd7 18.Bg7 Kg7 19.Qb2 Kg8 20.Ra1 Ra8 21.Ra8 Qa8 22.d4 f6 23.h3 Qb8 24.Qb4 Kf7 25.c3 e5 26.de5+/- fe5 27.Ng5 Ke8 28.Nh7 d4 29.cd4+– ed4 30.Bd3 de3 31.Bg6 Kd8 32.Qh4 Kc8 33.fe3 Qe5 34.e4 Qd4 35.Kh2 Qe5 36.Qg3 Qg3 37.Kg3 b5 38.Kf4 b4 39.g4 Ba4 40.e5 b3 41.h4 b2 42.h5 Bb3 43.Nf6 Ba2 44.Nd7 Kd7 45.h6 b1Q 46.Bf5 Ke7 47.Bb1 Bb1 48.g5 Kf7 49.Ke3 Bg6 50.Kf3 Ke6 51.Kf4 Kd5 52.Kg3 Ke5 53.Kg4 Ke4 54.Kh3 Kf5 55.Kh4 Kf4 56.h7 Bh7 57.Kh5 (57...Be4 58.Kh6=). lucya (2095) – p4rp3bd (1675), GameColony.com, 2002.

7.h3 c6 8.a4 Qc7 9.c4 e5 10.d3 e4 11.de4 de4 12.Nh2 Ne5 13.Qc2 Be6 14.c5 Rfd8 15.Nd2 Nd3 16.Rad1?? (better is 16.Bc3=) 16...Nb2–+ (16...Nb4?! 17.Qb1 Nbd5 18.Bf6 Nf6 19.Ne4 Ne4 20.Qe4+=) 17.Qb2 Ng4 18.Qb1 (18.Qg7 Kg7 19.Bg4–+) 18…Qh2# 0–1. horacyad2010 – klobuk, kurnik, 2012.

7.h3 c6 8.d3 b5 (8...Qb6 9.a3=) 9.a4 ba4 10.Ra4 Bb7 (10...c5 11.bc5 Nc5 12.Ra3=) 11.Bc3 (11.Bd4 a5=) 11...a6 (11...c5 12.bc5 Nc5 13.Ra3=) 12.Nbd2 (12.Ra5 Qc7+=) 12...c5= 13.bc5 Nc5 14.Rb4 a5 (14...Bc6!?=) 15.Rb5+/- Qc7 16.Be5 Qc8 17.Qb1 Bc6?? (better is 17...Nfd7 18.Bg7 Kg7 19.Qa1 f6 20.Ra5 Qc7 21.Ra8 Ra8+/-) 18.Rc5+– Qd7 (18...Qa6 19.Nd4 Rfc8 20.c4+–) 19.Qb6 Rac8 20.Nd4 Ba4 21.Ra5 Bc6 22.Ra7 Qe8 23.Qb4 Ra8 24.Re7 Ra4 25.Re8 Rb4 26.Rf8 Kf8 27.Bd6 Kg8 28.Bb4 Ba4 29.Ra1 Bd7 30.Ra8 Be8 31.Be7 1–0. gtate (2760) – carlopm (1970), net–chess.com, 2009.

7.h3 Ne8 8.Bg7 Ng7=.

7.c4 c6

8.a3 Qc7 (8...dc4 9.Bc4 Nb6 10.Be2=) 9.Qc2 Nb6 (9...dc4 10.Qc4 a5 11.Nc3+=) 10.d3 (10.cd5 Nbd5 11.Be5+=) 10...Bf5? (better is 10...dc4!? 11.dc4 Bf5=) 11.cd5+/- Nbd5? (better is 11...Bd7!?+/-) 12.e4+– Ne4? (12...Be6 13.ed5 Bd5+–) 13.Bg7 Kg7 14.de4 Be4 15.Qe4 f5 16.Qh4 h6 17.Nbd2 Nf4 18.Bc4 g5 19.Ng5 Ng6 20.Ne6 Kh7 21.Qd4 Qe5 22.Nf8 Rf8 23.Qe5 Ne5 24.Rfe1 (24.Rfe1 Ng6 25.Nb3+–) 1–0. Olsen,Birger – Methi,Harald, Vadsosjakken op, 1992.

8.a4 Re8 9.Ne5 Ne5 (9...Ne4 10.f4 Ne5 11.fe5=+) 10.Be5=+ Nd7 (10...Be6 11.Na3=+) 11.Bg7= Kg7 12.d3 (12.cd5 cd5 13.Nc3 Nf6=) 12...e5 (12...a5 13.cd5 ab4 14.Qb3=) 13.d4 (13.cd5 cd5 14.d4 Qe7=) 13...e4 (better 13...dc4!? 14.Bc4 ed4 15.Qd4 Ne5=+) 14.Nc3 White plans b5 14...f5? (14...dc4 15.Bc4 Nb6 16.Bb3=) 15.b5 (15.cd5!? Nf6 16.dc6 bc6 17.b5+/-) 15...Nf6+= 16.Rb1 Re7 17.a5 (17.h3 Bd7+=) 17...a6 (17...Qa5 18.Qb3 dc4 19.Bc4 cb5 20.Nb5 a6=+) 18.bc6+/- bc6 (18...Qa5 19.cb7 Bb7 20.Qb3+/-) 19.Rb6 Bd7 (19...dc4!? 20.Bc4 Rc7+/-) 20.Qb3+- f4 (20...Be6 21.Rb1+-) 21.ef4 (21.cd5 f3 22.gf3 cd5 23.Rf6 Kf6 24.Nd5 Kg7 25.Ne7 Qe7+-) 21...Be8 (21...dc4 22.Qc4 e3 23.Qc5+-) 22.Rb7 (22.cd5 Bf7+-) 22...Ra7 (22...Bf7 23.Rc1+-) 23.Ra7 (23.Qb6 Qb6 24.Re7 Re7 25.ab6 dc4 26.Bc4 a5+-) 23...Ra7 24.Qb6 Ra8 (24...Qe7 25.Rb1+-) 25.Qd8 (25.Rb1 Qc8+-) 25...Rd8 26.c5 Rb8? (better 26...Ra8+-) 27.Rb1 Ra8 (27...Rb1 28.Nb1 Kf7 29.Ba6+-) 28.Rb6 (28.Rb7 Kg8 29.Na4 Nh5 30.Bh5 gh5+-) 28...Bd7 (28...Kf7 29.Na2 Ng8 30.Ra6 (worse 30.Ba6 Ne7 31.Nc1 Ke6+-) 30...Ra6 31.Ba6+-) 29.Ra6 Rb8 30.Rb6 Ra8 31.a6 Bc8 (31...Kf8+-) 32.Rc6 Kf7 33.Nb5 (better 33.Rc7 Kf8 34.Na4 Ba6 35.Nb6+-) 33...Nd7 (33...Bd7 34.Nd6 Ke7+-) 34.Rc8! Ra6 (34...Rc8 35.Nd6 Double attack (35.Nd6 Decoy)) 35.Nd6 (35.Nd6 Rd6 36.cd6+-) 1-0. Lance5500 (2625) - Gannikus (2620), lichess.org, 2018. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 g6 4.e3 Bg7 5.Be2 0-0 6.0-0 Nbd7)

8.Qc2 dc4 9.Bc4 Nb6 10.d4 (10.Be2 Nbd5=) 10...Nc4+= 11.Qc4 Qd5 (11...Be6 12.Qe2+=) 12.Nbd2 (12.Qc5 Qd6=) 12...Be6 (12...Bf5 13.Rfc1=) 13.Rfc1 Rfc8 14.Qe2 Ne4 (14...Qh5 15.e4=) 15.Ne4 Qe4 16.Nd2 (16.Ng5 Qg4 17.Qg4 Bg4=) 16...Qd5 17.Rc5 (17.Bc3 Rd8=) 17...Qd7 18.a4 b6 (18...Bg4 19.f3 Bf5 20.a5=) 19.Rc2 Bg4 (19...a5 20.Nc4 Bc4 21.Rc4=) 20.f3 (20.Qe1 Rd8=) 20...Bf5 21.Rcc1 c5 22.bc5 bc5 23.Nb3 cd4 24.Rc8 Rc8 25.Nd4 Rb8 26.Ra2 Bb1 27.Ra1 e5 28.Rb1 ed4 29.Qd1 d3 30.Bg7+= Rb1 31.Qb1 d2?? 32.Bd4+– Qc7 33.Kf2 Qh2 34.Qd1 Qh4 35.Ke2 Qh2 36.Qf1 Qc7 37.Kd2 Qa5 38.Ke2 Qa4 39.Qc1 Qd7 40.Qc5 Qb7 41.Qa7 Qb5 42.Kf2 Qe8 (42...Qb4 43.Qa8 Qf8 44.Qd5+–) 1–0. Ferreiro Montoya,Juan I – Zabala,Pedro M, San Sebastian, 1994.

8.d3 Re8 9.Nbd2 e5 10.Qb3 Qe7 11.a3 b6 (11...e4 12.Nd4=) 12.Rfc1 Bb7 13.cd5 Nd5 (worse 13...cd5 14.Rc7 Rab8 15.Ne5+–) 14.Nc4 a5 15.ba5 b5 16.Nb6 N7b6 (worse 16...Ra5 17.Nd5 cd5 18.Rc7+–) 17.ab6 Nb6 18.d4 Na4 19.Ne5 (19.d5 Rec8 20.dc6 Rc6 21.Rc6 Bc6=) 19...Nb2 20.Qb2 Attacking the backward pawn on c6 20...Be5 21.de5 Qe5 22.Qe5 Re5 23.Bf3 Ra6 24.Rcb1 (24.Rc3 Re8=) 24...Rc5 (24...Re8 25.Rd1=+) 25.h3 Kf8 (25...Rc4 26.Bd1=) 26.a4 Bc8 27.ab5 (27.a5 Be6=) 27...cb5 (27...Ra1 28.Ra1 cb5 29.Rb1=) 28.Ra6 Ba6 29.Be2 Ke7 30.Kf1 Kd6 31.Bd3 Kc6 32.Ke2 Kb6 33.Kd2 Bc8 34.f4 Be6 (34...f5 35.e4=) 35.e4 Bc4 36.Bc2 (36.g4 h5=) 36...Rc7 37.Rb2 (37.e5 Kc5=) 37...Kc5 38.Ke3 (38.e5 b4=+) 38...Ra7 Black fights for the Initiative 39.f5 (39.Bd1 Ra3 40.Kd2 h6-/+) 39...g5 40.e5 (40.Bd1!?-/+) 40...Re7–+ 41.e6 fe6 42.f6 Rf7 43.Bb1 Rf6 44.Bh7 b4 45.Bc2 (45.Be4 e5–+) 45...Rf1 (45...e5 46.Bb3–+) 46.Rb1 Rf8 47.g3 (47.Rc1 Rd8–+) 47...Rh8 48.Rh1 Ra8 49.Bg6 (49.Be4 Ra3 50.Kf2 b3–+) 49...Ra3 50.Kf2 Ra2 51.Ke3 Rg2 52.g4 (52.Kf3 Bd5 53.Be4 Be4 54.Ke4 Rg3–+) 52...Re2 (52...b3 53.h4 Rg3 54.Kd2–+) 53.Kf3 Bd5 54.Ke2 Bh1 55.Kd3 (55.Bf7 e5–+) 55...Bg2 56.Bf7 Kd5 57.Kc2 (57.Ke3 Bh3 58.Bh5 Kc5–+) 57...Bh3 58.Kb3 Bg4 59.Kb4 Kd4 (59...Kd4 60.Be8 e5–+) 0–1. Petrochenko,Maria (2020) – Belenkaya,D (2290), ch–St Petersburg w, 2018.

8.d4 a5 9.b5 cb5 10.cb5 a4 11.Ne5 (11.Nbd2 Nb6+=) 11...Ne4= 12.Qe1 Qc7 (12...Ne5 13.de5 Qc7 14.f4+=) 13.Nd7 Bd7 14.Ba3 Rfc8 15.Be7 Bb5 16.Bb4 (16.Bb5 Qe7 17.a3 Nd6=) 16...Be2+= 17.Qe2 Qc4 18.Qb2 h5 (18...Qc2 19.Qc2 Rc2 20.f3=) 19.Na3 Qa6 20.Rfc1 Rc6 (20...Qb6 21.Rc2=) 21.f3 Ng5 22.Rc6 bc6 23.Rc1 Ne6 24.Qd2 Rb8 25.Nc2 Qc4 26.a3 Bh6 27.Ne1 Qb5 28.f4 Bg7 ½–½. Azaladze,S (2440) – Mamedov,Rau (2660), Open Baku AZE, 2010.

8.cd5 cd5 9.Qb3+= a5 10.Nc3 e6 (10...ab4 11.Nd5 Nd5 12.Bg7 Kg7 13.Qd5+=) 11.Rfc1 Qb6 (11...ab4!? 12.Qb4 Nb8+=) 12.Nb5+/- Ne4 13.Bg7 Kg7 14.a4 (14.Rc7 Nb8+/-) 14...Ndf6 15.Qb2 Qd8? (better is 15...Bd7!?+=) 16.Nc7+– Rb8 17.ba5 Bd7 18.Ne5 Bc6 (18...Qe7 19.f3 Nd6 20.Bb5 Bb5 21.ab5+– (worse is 21.Nb5 Rfc8+–)) 19.Nb5 d4 (19...Bb5 A) 20.Bb5?! Nd6+– (20...Qa5? 21.d3 Nd6 22.Nd7+–); B) 20.ab5 Qd6 21.d4+–) 20.f3 Nd6 21.Nd4 Qa5 22.Bb5 (22.Ng4!? Qd8 23.e4 Nde8+–) 22...Bb5 23.ab5 Qd8 24.Rc5 Qe7 25.b6 Rfc8 26.Rc8 (26.Rac1!? Rc5 27.Rc5 Nde8+–) 26...Rc8+/- 27.Ra7 Nc4 28.Nc4 (28.Qc3 Nb6 29.Ndc6 Qc7+/-) 28...Rc4 29.Qa1 (29.f4!?+/-) 29...e5= 30.Ne2 Rb4 31.Ra5 Qd6 32.Qc3 Nd7 33.Kf2 Rb6 34.d4 ed4 35.Nd4 Nf6 (35...Qh2?? 36.Ne6 Kg8 37.Qg7) 36.Rg5 Kh6 (36...Qh2 37.Nf5 Kh8 38.Rg3=) 37.h4 (37.Rb5 Kg7=) 37...Qb4 (37...Qh2 38.Ke2=) 38.Qd3 (38.Qb4 Rb4 39.g4 Kg7+=) 38...Qb1 (better is 38...Ra6 39.Qe2 Qb1=) 39.Qc4?? (better is 39.Qb1 Rb1 40.e4+=) 39...Rb2–+ 40.Ne2 Qc2?? (better is 40...Qd1 41.Rg4 Rb1–+ (41...Ng4?! 42.fg4 Qd2 43.Qf4 Kg7 44.Qe5 Kf8 45.Qb8 Ke7 46.Qc7 Ke6 47.Qc4 Qd5 48.Qc3–+)) 41.Qc2+= Rc2 42.Rb5 Rc7 43.e4 Kg7 44.Nf4 Kf8 45.Ke3 Ke8 46.e5 Nd7 47.Kd4 Nb8 (47...b6 48.Nd5 Rc2 49.g4+=) 48.Nd5+/- Rd7 (48...Rc2 49.Nf6 Kf8 50.Nh7 Kg7 51.Ng5 Nc6 52.Ke3 Rg2 53.e6 fe6 54.Rb7 (54.Ne6?! Kf6 55.Nc5 Rh2=) 54...Kg8 55.Ne6+/-) 49.Ke4 Kd8 50.Nf6 Re7 51.Nd5 Rd7 52.Ra5 Na6 53.g4 Nc7 54.Nf6 Rd2 55.Nh7 b6 56.Ke3 (56.Ra3 Re2 57.Re3 Ra2+/-) 56...Rh2 (better is 56...ba5 57.Kd2 a4+/-) 57.Ng5?? (better is 57.Ra1+/-) 57...Ke7 (better is 57...ba5 58.Nf7 Kd7–+) 58.Ra7+– Kd7 (58...Rc2 59.Ne4+–) 59.Nf7 Rh4? (59...Kc6 60.e6! Nd5 61.Kd3 Nf4 62.Ke4 Ne6 63.Ne5 Kc5 64.Ng6 b5+–) 60.e6! Kc6 (60...Ke6 61.Rc7 Deflection) 61.Ne5 (better is 61.e7!? Ne8 62.Ra8 Rh1 63.Re8 Kd7+–) 61...Kd6 62.e7 Ne8 (62...Ke5 63.Rc7 Rh8 64.Rc6+–) 63.Ng6 Rh7 (63...Rh6 64.Nf8 Rh1 65.Ke2 Rh2 66.Kd3+–) 64.f4 b5 (64...Rh1 65.Ra8 Re1 66.Kd4 Re7 67.Ne7 Ke7 68.Ke5+–) 65.g5 Rh1 (65...b4 66.Ra8 Ng7 67.Rd8 Kc5 68.Ke4+–) 66.Ra8 Kd7 (66...Nc7 67.Kf3 Rf1 68.Ke2 Rc1+–) 67.Rd8 Kc7 68.Re8 b4 69.Kd3 (69.Rc8 Kb7 70.Ne5 b3 71.e8Q Re1 72.Kd2 Rd1 73.Kd1 Kb6 74.Nc4 Ka6 75.Rc7 b2 76.Qc6#) 69...b3 70.Kc3 (70.Kc3 Re1 71.Ra8+–) 1–0. Dimakiling,O (2370) – Low,Zhen Yu Cyrus (2025), 6th Penang Open, 2014. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.Be2 0-0 6.0-0 Nbd7 7.c4 c6)

8.cd5 cd5 9.Nc3 Re8 10.d3 e6 11.Rc1 b6 (11...a6 12.Qb3+=) 12.Qb3 (12.Nb5 Re7+/-) 12...Bb7 (12...a5 13.b5+=) 13.Rfd1 (13.Nb5 Re7+/-) 13...Rc8 (13...a5 14.ba5 Ra5 15.d4+=) 14.Nb5+/- Nb8 (14...Rc1!? 15.Rc1 Qb8+/-) 15.Na7+– Rc1 16.Rc1 (< 16.Bc1 Ba6+/-) 16...Qd7 (16...Nbd7 17.Nb5 Qb8 18.d4+/-) 17.d4 (17.b5 d4 18.Ne5 Qd5 19.Qd5 Nd5 (< 19...Bd5 20.Bd4 Nfd7 21.Nd7 Nd7 22.Bg7 Kg7 23.Rc7+–) 20.Bd4 Be5 21.Be5 Nd7+–) 17...Ba6+/- 18.Ba6 Na6 19.b5 (better is 19.Nc6+/-) 19...Qa7= 20.ba6 Qa6 21.Ne5 Rc8 (better is 21...Ne4!?=) 22.Rc8+/- Qc8 23.h3 (23.Qb6!? Ne4 24.Qc6+/-) 23...Qc7 24.Ba3 Ne4 (24...h6 25.Qa4=) 25.Qb5 (better is 25.Qa4 Qc8 26.Nc6+=) 25...Bf8?? (better is 25...Nf6=) 26.Qe8+– Kg7 (26...Nd6 27.Bd6 Qd6 28.Qf7 Kh8+–) 27.Qf8 Kf6 28.Qh8 Kg5 29.f4 Kf5 30.g4# 1–0. Eralos (2035) – senhorx (2005), ajedrez21.com, 2002.

8.cd5 Nd5 9.Bg7 Kg7 10.Nc3=.

6.0-0 e6

7.a4 b6 8.c4 dc4 9.Bc4 c5 10.b5 Bb7 11.d4 cd4 12.Nd4 Ne4 13.Qb3 a6 14.Be6 (better is 14.ba6 Na6 15.Rd1=) 14...fe6–+ 15.Ne6 Qd5?? (better is 15...Bd5 16.Qc2 Be6 17.Bg7 Kg7 18.Qe4 Qd5 19.Qd5 Bd5-/+) 16.Qd5+/- Bd5 17.Ng7 ab5 18.ab5 Ra1 19.Ba1 Nd7 20.Nc3 Nc3 21.Bc3 Bc4 22.Rd1 Nc5 23.Rd6 Ne4 24.Rc6?? Nc3?? 25.Rc4+/- Nb5 26.Rb4?? Kg7?? 27.Rb5+/- Rb8 28.f4 Kf7 29.Kf2 Ke6 30.Kf3 Kd6 31.e4 Kc6 32.Re5 b5 33.Re7 b4 34.Ra7 b3 35.Ra1 b2 36.Rb1 Kc5 37.Ke3 Kc4 38.g4 Kc3 39.f5 Kc2 40.Rb2 Kb2 41.f6 Kc3 42.e5 Kc4 43.Ke4? Kc5?? 44.Kf4? Kc6 45.Kg5?? Kd7 46.Kh6 Ke6 47.Kh7 Kf7 48.h4 Re8 49.h5 gh5 50.gh5 Re5 51.h6 Kf6 52.Kg8 Rh5 53.h7= Rg5 54.Kf8 Rh5 55.Kg8 Rh4 56.h8Q Kg5?? 57.Qg7 Kf4 58.Qf6 Ke4 59.Qh4 Kd5 60.Qg5 (60.Qg5 Kc4 61.Kf7+–) 1–0. elsh1403 – teknologi, kurnik, 2011.

7.a4 Nbd7 8.c4 c5 9.b5 a6 10.Qc2 ab5 11.ab5 Ra1 12.Ba1 b6 13.Nc3 (13.d4 Qe7=) 13...Bb7 (13...dc4 14.Bc4 Bb7 15.e4=) 14.d3 (14.cd5 ed5 15.Bb2 Qe7+=) 14...Qc7 15.Bb2 (15.cd5 ed5 16.d4 Rc8=) 15...Ra8 (15...dc4 16.dc4 Ng4 17.e4=) 16.Ra1 Qb8 (16...Ra1 17.Ba1 dc4 18.dc4=) 17.Ra4 Ra4 18.Qa4 Qa8 (18...e5 19.cd5 Nd5 20.Qh4=) 19.Qa8 Ba8 20.Na4 Kf8 (20...dc4 21.dc4 h6 22.Nc3=) 21.Ne5+= Ne5 22.Be5 Nd7 23.Bc7 dc4 24.dc4 Be4 25.Nb6+– Ne5?? 26.Bd6 (26.Bd6 Ke8 27.Na4+–) 1–0. Fredek (2065) – Huelgoat (1690), Freundschaftspartie, 5m + 0s, 2006.

7.a4 Nbd7 8.c4 c5 9.b5 b6 10.d4 Bb7 11.dc5 Nc5 12.cd5 Nd5 13.Bg7 Kg7 14.Qc2 Nb4 15.Qc3 Qf6 16.Qf6 Kf6 17.Nc3 Nb3 18.Rad1 Rad8 19.Rd8 Rd8 20.Rd1 Rd1 21.Bd1 Na5 22.Nd4 Nc4 23.Bf3 Bf3 24.Nf3 Nb2 25.Nd4 e5 26.Nc6 Nc6 27.bc6 Ke6 28.Nb5 Na4 29.Na7 Kd6 30.Kf1 b5 31.Ke2 b4 32.Kd3 Nb6 33.Kc2 f5 34.Kb3 Kc5 35.c7 f4 36.ef4 Nc8 37.Nc8 ef4 38.Ne7 Kd6 39.c8Q 1–0. Abdullaevich (1815) – chessdesi (1850), lichess.org, 2019.

7.c4 c6 8.Na3 (8.Nc3 Bd7+=) 8...b6 9.Rc1 (9.Qc2 Qe7=) 9...Bb7 10.cd5 cd5 (10...ed5 11.Nb1=) 11.Nb5 Nc6 12.a3 a6 13.Nbd4 Nd4 14.Bd4 Ne4 15.Bg7 Kg7 16.Qc2 Rc8 17.Qb2 Kg8 (17...Qf6 18.Qb1=) 18.Ne5 (18.Rc8 Qc8 19.Rc1 Qb8+=) 18...Rc1 19.Qc1 (19.Rc1 f6 20.Nd3 Qe7=) 19...Qd6 20.Qb2 f6 21.Nf3 Qd7 22.Rc1 e5 (22...Rc8 23.d3 Rc1 24.Qc1=) 23.d4 ed4 24.Qd4 b5 25.Nd2 Nd2 26.Qd2 Rc8 27.Rc8 Qc8 28.h3 Kf7 29.Kh2 ½–½. Cagara,Paulina (1800) – Sowa,Agnieszka (1800), Poland–chT2 South U20, 2000.

7.c4 Nbd7 8.a3 a6 9.Nc3 dc4 10.Bc4 b5 11.Be2 c5 12.d4 c4 13.Nd2 Bb7 14.Bf3 Qc7 15.Nde4 e5 16.Nc5 Bf3 17.Qf3 (< 17.gf3 ed4 18.Qd4 Nc5-/+) 17...ed4 18.ed4 Nc5 19.dc5 Rad8 20.Rad1 Rfe8 21.Rfe1 Re1 22.Re1 Qd7 23.Ne4 (better is 23.Nb5 ab5 24.Bf6+=) 23...Ne4=+ 24.Bg7 Nd2 25.Qc3 Qg4?? (25...Re8 26.Rc1 Nb3 27.Rf1=) 26.Be5 (26.Bh8 Nf3 27.Kh1 f6 28.Qf6 Qd7 29.gf3 Rf8+–) 26...Rd3?? 27.h3 Nf3–+ 28.Kh1 Qf5 29.Qa1 Ne1 30.Qe1 Ra3?? 31.Bd6?? Ra2?? 32.Qe8 Kg7 33.Be5 f6+= 34.Qe7 Kh6?? 35.Qf8?? Kg5–+ 36.Bg3? Qe6 37.h4 Kf5 38.c6? Qc6 39.Qd8 c3 40.Qd3 Ke6 41.Qe3 Kf7 (41...Kf7 42.Qa7 Kf8 43.Qb8 Qe8–+) 0–1. elsh1403 – mirkolampo (1610), kurnik, 2011.

7.c4 Qe7 8.Qa4=.

7.d3 b6 8.Nbd2 Bb7 9.c4 Nbd7 10.Qc2 c5 11.b5 a6 12.a3 a5 13.h3 dc4 14.Nc4 Nd5 15.Nd6 Rb8 16.Nb7 Rb7 17.Bg7 Kg7 18.Nd2 Qf6 19.Bf3 Rbb8 20.Nc4 Qc3 21.Qe2 h5 22.Rfc1 Qf6 23.Qc2 Qh4 24.Qb2 Kg8 25.Re1 g5? 26.Ne5 N7f6? 27.Bd5+– Nd5 28.Nd7 g4 29.Nf8 gh3? 30.g3 h2 31.Kg2 Qg4 32.Qe5 Rf8 33.Qe4 Qg5 34.Kh2 Kg7 35.Kg2 Rh8 36.Rh1 Rh6 37.Rh4 f5 38.Qe5 Kf7 39.e4 fe4?? 40.de4 Nf6 41.Qg5+– Ne4 42.Re4 (42.Re4 Ke8 43.Qh6 Kd7 44.Qe6 Kd8 45.Qc6 h4 46.Rd1#) 1–0. ejdrzej (1680) – sweter2004 (1655), kurnik, 2012.

7.d3 b6 8.Nbd2 c5 9.b5 a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 Nbd7 13.c4 Bb7 14.Ne5 Qc7?? (better is 14...Ne8+=) 15.Nd7+– Qd7 16.Nf3?? (better is 16.Bf6 Ra8 17.Qe5 Bf6 18.Qf6+–) 16...Ra8= 17.Qb1 dc4 18.dc4 Ne4 19.Bg7 Kg7 20.Rd1 Qe7 21.Qb2 Kg8 (better is 21...Qf6!? 22.Qf6 Kf6=+ (< 22...Nf6 23.Ne5+/-)) 22.Ne5+= Rd8 23.Bf3 Rd1 24.Bd1 Qd6 25.Bf3 Nd2 26.Bb7 Nc4!-/+ 27.Qe2 Ne5 28.f4 Nd3 29.Be4 c4 30.Kf1 f5 31.Bd3 cd3 32.Qd2 Kf7 33.Qc3?? d2 0–1. bratek55 (1630) – felixs161, kurnik, 2012.

7.d3 c6 8.Nbd2 b6 9.c4 Ba6 10.cd5 cd5 11.Rc1 Nbd7 12.a3 Rc8 13.Nd4 Nb8 14.b5 Bb7 15.a4 Nh5 16.Bh5 gh5 17.Qh5 Nd7 18.Rc3 Nc5 19.a5 ba5 20.Ba3 Re8 21.Rc5 Rc5 22.Bc5 Qc7 23.Ba3 Qc3 24.Nb1 Qd3 25.Rd1 Qc4 26.Rc1 Qa2 27.Qd1 a6 28.b6 Bf8 29.Qb3 Qb3 30.Nb3 Bb4 31.Rc7 Rb8 32.Bb4 ab4 33.Nc5 Bc8 34.b7 Bb7 35.Rb7 Ra8 36.Rb4 a5 37.Ra4 Kg7 38.Nd2 Kf6 39.h3 Ke5 40.Nb7 Ra7 41.Na5 h5 42.Nc6 Kf6 43.Ra7 h4 44.e4 de4 45.Ne4 Kg6 46.Nd8 f5 47.Nd6 Kf6 48.Rf7 Ke5 49.Nc4 Kd5 50.Ne3 Ke5 51.g3 hg3 52.fg3 Ke4 53.Kf2 Ke5 54.Re7 Kf6 55.Re6 Kg5 56.h4 Kh5 57.Nf5 Kg4 58.Ne3 Kh5 59.Nf7 ½–½. Phomopsis (1725) – gatuso (1770), lichess.org, 2020.

7.d3 Nc6 8.b5 Ne7 9.Nbd2 c6 10.a4 cb5 11.ab5 Nf5 12.e4 de4 13.de4 (13.Ne4?! Ne4 14.Bg7 Nf2 15.Rf2 Kg7=) 13...Nd6 (13...Ne7 14.Ra3+/-) 14.e5 (better is 14.Bf6 Qf6 15.e5+–) 14...Nf5?? (better is 14...Nd7+/-) 15.ef6+– Bf6 16.Bf6 Qf6 17.Bd3 a6 18.Bf5 ef5 19.ba6 ba6 20.Re1 Bb7 21.Nc4 Rad8 22.Qb1 Qg5?? 23.Ng5 h6 24.Qb7 Rb8 25.Qe7 hg5 26.Qg5 Kg7 27.Ne5 Rbc8 28.Nd7 Rfd8 29.Qf6 Kh7 30.Qf7 Kh6 31.Nf6 Rd2 32.Qh7 Kg5 33.Nd7 Rcc2 34.Rf1 a5 35.f4 Kg4 36.Qg6 Kh4 37.g3 Kh3 38.Qf5# 1–0. blaugrana18 – kena01, kurnik, 2011.

7.d3 Nc6 8.b5 Ne7 9.Nbd2 c6 10.c4 cb5 11.cb5 b6 12.Qb3 Bb7 13.Rac1 Rc8 14.h3 Qd7 15.Ne5 Qd6 16.Ba3 Qe5 17.Be7 Rfe8 18.Ba3 d4 19.Bb2 Qg5 20.Bf3 de3 21.fe3 Qe3 22.Rf2 Bf3 23.Nf3 Rc1 24.Bc1 Qc1 25.Rf1 Qe3 26.Kh1 Nh5 27.Re1 Ng3 28.Kh2 Qf4 29.Kg1 Rd8 30.Re4 Qc1 31.Re1 Qf4 32.Re4 Ne4 33.de4 Qe4 34.Qc2 Qc2 35.Nd2 Qd2 36.Kh2 Be5 37.Kg1 Qe1 0–1. Phomopsis (1655) – d_okro (1640), lichess.org, 2020.

7.d3 Nbd7 8.Nbd2 c5 9.a3 b6 10.c4 dc4 11.Nc4 Ba6 12.Qb3 Nd5 13.b5 Bb2 14.Qb2 (14.ba6? Ba1 15.Ra1 Nb8–+; < 14.Nb2 Bb5! 15.Rac1 Bc6=+) 14...Bb7 15.Nd6 Qc7 16.Nb7 Qb7 17.a4 Rac8 18.Rac1 Rfd8 19.Rfd1 Nf8 20.h3 Qe7 21.Ne5 Qf6 22.d4 cd4 23.ed4 Rc1 24.Rc1 Nf4 25.Bf3 Qg5 26.Nc6 Re8 27.Kh2?? Nd3–+ 28.Qc3 Nc1 29.Ne5 Na2 30.Qc7?? Qe7 31.Qc2 Nb4 32.Qe4 Nd5 33.Ng4 f5 (33...f5 34.Qe5 fg4 35.Bg4 Qf6–+) 0–1. elsh1403 – qwe5, kurnik, 2011.

7.d4 Nbd7 8.Nbd2 b6 9.c4 c6 10.Qb3 Ba6 11.Rfc1 Rc8 12.a4 b5 13.ab5 dc4 14.Bc4 Bb5 15.Ra7 Nb6 16.Bb5 cb5 17.Ne5 Rc1 18.Bc1 Nfd5 19.Nc6 Qf6 20.Nf3 Rc8 21.Nfe5 Nc4 22.e4 Nf4 23.Ne7 Kh8 24.Nc8 Ne2 25.Kf1 Nc1 26.Ra8 Bf8 27.Qc2 Ne3 0–1. Orang4Utan (1815) – JuergenHaeuser (1845), lichess.org, 2020.

7.h3 a5 8.b5 c5 9.a4 b6 10.d3 Bb7 11.c4 dc4 12.dc4 Qc7 13.Nbd2 Rd8 14.Qc2 Nbd7 15.Rfd1 Nf8 16.Be5 Qe7 17.Nh2 N8d7 18.Bf6 Nf6 19.Bf3 Bf3 20.Ndf3 e5 1–0. horacyad2010 – julo12, kurnik, 2011.

6.0-0 Re8

7.a4 Nc6 8.b5 Na5 9.d3 c6 10.Nbd2 Bg4 11.Nd4 Be2 12.Ne2 a6 13.Bc3 ab5 14.ab5 cb5 15.Ba5 Ra5 16.Ra5 Qa5 17.Nb3 Rc8 18.Na5 1–0. Adjailton (1800) – blunders_finder (1780), lichess.org, 2020.

7.c4 c5 8.b5 (better is 8.bc5!? b6 9.cb6 ab6 10.cd5 Qd5 11.Nc3+/-) 8...dc4 9.Bc4 b6?? (9...Bg4 10.Qb3 e6 11.Ne5=) 10.Nc3 (better is 10.Ng5!? Be6 11.Ne6 fe6 12.Be6 Kh8 13.Qf3+–) 10...Bf5 11.Nh4 (11.d4 Nbd7+=) 11...Bg4 (11...Bd3 12.Bd3 Qd3 13.Nf3+=) 12.Qc2 e5 13.f3 Be6 14.Be6 Re6 15.a4 a5 16.Rad1 Nd5 17.Nd5+= Qd5 18.e4 Qd6 19.d3 Nd7 20.Rd2 Nf6 21.Kf2 Bh6-/+ 22.g4? g5?? 23.Nf5+= Qf8 24.Nh6 Qh6+= 25.Kg3 Qh4 26.Kg2 Rd8 27.Rfd1 Ne8 28.Qc4 Nd6 29.Qc2 Rh6 30.Kh1 Qh3 31.Be5 Qf3 32.Rg2? Qe4?? 33.de4+– 1–0. Neumann,Frank – Secondi,Alberto, RN–2012–0-00484, 2012.

7.c4 Bg4 8.d4=.

7.d3 Bf5 8.c4 c6 (8...dc4 9.dc4 a5 10.b5=) 9.Nbd2 (9.Nd4 Qd7+=) 9...Na6 (9...Qd6 10.c5 Qd7 11.Be5+=) 10.a3 Nc7 (10...c5 11.Qb3=) 11.Ne5 (11.Nd4 Bd7+=) 11...Nd7 (11...Qd6 12.Qc2=) 12.Ndf3+= f6 (12...Ne5 13.Be5 f6 14.Bg3=) 13.Nd7 Qd7 14.Nd4 e5 15.Nf5 Qf5 16.Bg4 (16.cd5 cd5 17.f4 ef4+=) 16...Qg5 17.f4 ef4 18.ef4 Qh6 19.f5 (19.Bd7 Re7 20.Bh3 f5=+) 19...g5 (19...Qe3 20.Kh1 dc4 21.dc4=) 20.g3 (20.Qf3 Re7+/-) 20...Bh8 (20...Rad8 21.Bh5 Re3 22.Bd4+=) 21.Qf3+/- Qf8 22.h4 h6 23.hg5+/- hg5 24.Bd4 b6 25.c5 Nb5 26.Qf2 Nd4= 27.Qd4 b5 28.Rae1 Re7 29.Bh5 a5 30.Qf2 Raa7 31.Re6 ab4+/- 32.ab4 Qg7 33.Rfe1 Re6+/- 34.Re6 Qc7 35.Re8 Kg7 36.Bg6 Ra1 37.Kg2 Qa7?? 38.Kf3 Ra2 39.Qe3+/- (39...Qc7 40.Re7 Kf8 41.Rc7 g4 42.Kg4 Ra8 43.Qe7 Kg8 44.Qf7) 1–0. Lin,Ang Keng – Haydn,Gavin, University Open, 2003.

7.d3 Bg4 8.c4=.

7.d4 Qd6=.

7.d4 Nbd7 8.c4 c6 9.Nbd2 a5 10.a3 e6 (10...ab4 11.ab4 Ra1 12.Qa1 dc4 13.Nc4=) 11.c5 b5 12.a4 ab4 (better is 12...Ba6!?+=) 13.ab5+/- Ra1 14.Qa1 Bb7 15.b6 e5 (15...Ne4 16.Nb3 e5 17.Rb1+/-) 16.Ba6 (better is 16.Ne5!? Ne5 17.de5+–) 16...Ba6+= 17.Qa6 Ne4 (17...e4 18.Ne1 Qb8 19.h3+/-) 18.Qa5+/- ed4 19.ed4 (19.Bd4!? Qe7 A) 20.Qb4?! Nec5 (20...Ndc5? 21.Bg7 Kg7 22.Rc1+–) 21.Ra1 Rb8+=; B) 20.Nb3+/-) 19...Nec5 (19...Ndc5!? 20.Qb4 Nd3+=) 20.dc5+= Bb2 21.Qb4 Qf6 22.b7 Rb8 23.Rb1= Bc3 24.Qa3 Bd2 25.Nd2 Qd4 26.Nf3 Qc5+= 27.Qc5 Nc5-/+ 28.Nd4 Rb7 29.Rb7 Nb7 30.Nc6 Kg7 31.f4 Kf6 32.Kf2 Ke6 33.g4 Kd6 34.Nd4 Nd8 35.Ke3 Ne6 36.Nf3 f6 37.h4 f5 38.gf5 gf5 39.h5 h6 40.Nh4 Ng7 41.Kd4 Ke6 42.Ke3 Nh5 43.Ng2 Ng7 44.Kd4 Kd6 45.Nh4 h5 46.Ke3 Kc5 47.Nf3 Ne6 48.Nh4 d4 49.Kf3 Ng7 50.Kg3 Kd5 51.Kf3 Kc4 52.Ke2 Kc3 53.Kd1 Kd3 54.Ng2 Ne6 55.Ne1 Ke4 (55...Ke4 56.Ng2 Kf3 57.Nh4 Kg4–+) 0–1. Laine,E – Trisa Ard,Nakorn, Haifa ol (Men), 1976.

7.d4 Bf5 8.Nbd2 Nbd7 9.c4 e5 10.de5 Ng4 11.cd5 Nge5 12.Qb3 Nf3 13.Nf3 Ne5 14.Rfd1 a5 15.b5 a4 16.Qb4 Bg4 17.Nd4 Be2 18.Ne2 Qg5 19.f4 Qh5 20.Ng3 Nf3 21.gf3 Qf3 22.Re1 Re3 23.Rf1 Qd5 24.Bg7 Kg7 25.Rad1 Qa2 26.Qd4 Kg8 27.Qe3 a3 28.Rf2 Qc4 29.Ra1 a2 30.Rff1 Qb5 31.Ne4 Qb4 32.Nf6 Kg7 33.Qe5 Qb6 34.Kh1 Qf6 35.Qc7 b5 36.Qb7 Ra6 37.Qb5 Rb6 38.Qe2 Qh4 39.Ra2 Rb3 40.Qe5 f6 41.Ra7 Kh6 42.Qd5 Rh3 43.Ra2 Qg4 44.Qd6 Rf3 45.Rg1 Qh3 46.Qf8 Kh5 47.Ra5 f5 48.Ra7 Qg2 0–1. Orang4Utan (1770) – AKIN_fatih (1775), lichess.org, 2017.

7.h3 c6 8.a3 Nbd7 9.d3 e5 10.Nbd2 e4 11.Nh2 ed3 12.cd3 Qc7 13.Qc2 Ne5 14.Rac1 Qb6 15.Ndf3 Nf3 16.Nf3 Bf5 17.Nd4 Re7 18.Nf5 gf5 19.d4 Ne4 20.Qd3 Kh8 21.Bh5 f6 22.Rce1 Rg8 23.g3 Bh6 24.Kh2 Reg7 25.Re2 f4 26.ef4 Qc7 27.Bc1 Qd7 28.Bf3 f5 29.Be4 fe4 30.Qc3 Qe7 31.Rg1 Rg6 32.f3 Bg7 33.fe4 de4 34.Qe3 Qd6 35.Qe4 Rg3 36.Rg3 Qd4 37.Qd4 Bd4 38.Rg8 Kg8 39.Re7 b5 40.f5 c5 41.bc5 Bc5 42.Kg3 Be7 43.Kg4 Kf7 44.Bb2 a5 45.h4 b4 46.ab4 ab4 47.h5 b3 48.h6 Bd8 0–1. Abdullaevich (1740) – sarkar_omar (1625), lichess.org, 2019.

6.0-0 Bf5

7.b5 c6 8.a4 a6 9.bc6 bc6 10.d4 Nbd7 11.c4 Rb8 12.Ba3 a5 13.Nc3 Ne4 14.Rc1 Re8 15.cd5 Nc3 16.Rc3 cd5 17.Bb5 Rf8 18.h3 Nb6 19.Ne5 Be5 20.de5 Kg7 21.Qd4 Be6 22.Rfc1 Rc8 23.Rc8 Nc8 24.Qc3 Qb6 25.Qc7 Qc7 26.Rc7 Rd8 27.Be7 Ne7 28.Re7 Rc8 29.Ra7 Rc1 30.Kh2 Rc2 31.Kg3 h5 32.Ra5 h4 33.Kf3 d4 34.ed4 Bd5 35.Ke3 Bg2 36.Be8 Rc7 37.Rc5 Ra7 38.Bb5 Bh3 39.d5 Bf5 40.d6 h3 41.Kf3 g5 42.Kg3 g4 43.Rd5 Be6 44.Rd4 Kg6 45.d7 Bd7 46.Bd7 f5 47.ef6 Kf6 48.Bg4 h2 49.Kh2 Ke5 50.Rb4 Rg7 51.Kg3 1–0. mila77 (1745) – janjanin (1750), kurnik, 2012.

7.Nc3 Nc6 8.b5 (8.a3 e5+=) 8...Nb8 (8...Na5 9.Rb1=) 9.Nd4 (9.d3=) 9...e5 (9...Bc8!?=) 10.Nf5+/- gf5 11.f4 (11.d4 e4 12.Ba3+=) 11...d4 (better is 11...e4!?+=) 12.fe5+– dc3 13.ef6 Qf6 (13...Bf6 14.Bc3 Bc3 15.dc3+–) 14.Bc3 Qg5 15.Bg7 Kg7 (15...Qg7 16.Rf5 Nd7 17.Bf3+–) 16.Bd3 Nd7 (16...Qg4 17.Rf3 (17.Bf5?! Qd1 18.Rfd1 a6+–) 17...Kh8 18.Bf5+–) 17.Rf5 Qh6 (17...Qg6+–) 18.Rh5 Qe6 19.Rh7 Kg8 (19...Kf6 20.Rh6 Ke7 21.Re6 fe6+–) 20.Qh5 (20.Qh5 Rfb8 21.Qg5 Qg6 22.Bg6 Ne5 23.Qe5 f6 24.Qe6 Kf8 25.Qf7#) 1–0. pcmvr (2775) – kkoushik (2140), net–chess.com, 2008.

7.c4 dc4 8.Bc4 Bd3 (8...Nc6 9.a3+=) 9.Qb3 (9.Bd3!? Qd3 10.Nc3=) 9...Bf1-/+ 10.Bf1 c6 (10...a5 11.Nc3-/+) 11.d4 Nbd7 12.Nbd2 Nd5 (12...Nb6 13.e4-/+) 13.a4 Qe8 (13...f5 14.Ng5 Qb8 15.Nc4+=) 14.Rc1 e5 15.b5 ed4 16.Nd4 Rc8 (16...Bd4 17.Bd4 Rc8 18.bc6 bc6 19.Ba7=) 17.Ba3 Ne7 (17...Bd4 18.ed4 Qe6 19.Bf8 Kf8 20.Nf3=) 18.bc6 (18.Ne4 Be5+=) 18...bc6= 19.Ba6 (19.Be7 Qe7 20.Nc6 Qe8=) 19...Rb8+= 20.Qa2 c5 21.N4b3 Nf5 22.Nc5 Nc5-/+ 23.Bc5 Qc6 24.Bb5+/- Qc7 25.Nb3 Be5?? 26.Bf8+– Bh2 27.Kh1 Qb7 28.Kh2 Rf8 29.Nd4 Nh4 30.f4 Rd8 31.g3 Nf3 32.Nf3 Qf3 33.Qe2 (33.Qe2 Qe2 34.Be2+–) 1–0. orangutanb4 (2020) – dors (1815), kurnik, 2011.

7.c4 c6 8.Nd4 Bb1 9.Rb1 e5 10.Nf3 e4 11.Nd4 Nbd7 12.Qb3 Re8 13.f4 dc4 14.Bc4 Nb6?? (better is 14...Qe7=) 15.Bf7+– Kh8 16.Be8 Qe8 17.Ne6 Nbd5 18.Ng7 Kg7 19.g4 Kg8 (19...Kf8 20.g5 Nd7 21.b5+–) 20.Qc4 (better is 20.Bf6 Qe6 21.g5+–) 20...Ng4 21.Qd4 Ngf6 22.f5 Qd7? 23.Qe5 Re8 24.Qg3 Nh5 25.Qg5 Qd6 26.Bd4 b6 27.b5 c5 28.Ba1 Nb4 29.fg6 hg6?? 30.Qh6 (30.Qh6 Nf6 31.Qg6 Kh8 32.Rf6 Qd4 33.Rf7 Qa1 34.Qh7) 1–0. elsh1403 – lumpi (1605), kurnik, 2011.

7.c4 Nc6 8.a3+=.

7.d3 Nbd7 8.Nbd2 a5 9.b5 c5 10.c4 b6 11.d4 Re8 12.Rc1 Rc8 13.Ne5 Ne5 14.de5 Nd7 15.f4 f6? (15...Be6 16.cd5 Bd5 17.Nc4+=) 16.g4?? (better is 16.cd5 fe5 17.e4+–) 16...Be4+/- 17.Ne4 de4 18.Qd5 e6 19.Qe4 fe5 20.fe5 Qg5 21.Qf4 Qe7 22.Rcd1 Rf8 23.Qe4 Rc7 24.Rf8 Qf8 25.Rd6 Qe7 26.h3 Rc8 27.Qb7 Rd8 28.Bf3 Bf8 29.Re6! Qh4 30.Kg2 Qe1 31.Bd5 Qe2= 32.Kg3 Qe3 33.Bf3 Qe1 34.Kg2 Qd2 35.Kf1 Qb2 36.Rg6?? hg6 37.Qd5 Kg7 38.Qe6 Qc1 39.Kg2 Qd2 40.Kg3 Qg5 41.Bd5 Be7 42.Qf7 Kh6 43.Qe7 Qe7 44.h4 Qe5 45.Kf3 g5 46.hg5 Kg5 47.Be4 Rf8 48.Bf5 Qf4 49.Ke2 Ne5 50.Kd1 Nc4 51.Kc2 Qd2 52.Kb3 Qb4 53.Kc2 a4 54.Kd3 a3 55.Ke4 Qb2 (55...Qb2 56.Kf3 Qh2 57.Ke4 Qe2 58.Kd5 Rf6 59.Be4 Rd6; 55...Ne5 56.Ke5 Rf6 57.Be4 Qd4) 0–1. bratek55 – buky85 (1740), kurnik, 2011.

7.d3 Nbd7 8.Nbd2 Re8 9.c4 c6 10.Qb3 e5 11.cd5 cd5 12.Rac1 Rc8 13.Rc8 Qc8 14.Rc1 Qb8 15.Qc3 Ng4 16.Qc7 f6 17.h3 Nh6 18.Qb8 Rb8 19.Rc7 Bf8 20.a3 Bd6 21.Rc4?? dc4–+ 22.Nc4 Be7 23.e4 Be6 24.d4 ed4 25.Nd4 Bf7 26.f4 Rc8 27.Na5 Kg7 28.Nb7 Bc4 29.Bd1 Nf7 30.Na5 g5?? 31.g3?? gf4–+ 32.gf4 Nd6?? 33.Nac6 Kf8–+ 34.Bf3 a6 35.a4 Nb6 36.a5 Na4 37.Ba1 Nb5 38.Bg4 Nd4 39.Bc8 Nc6 40.e5 Na5! 41.ba5 fe5 42.fe5 Kf7 43.Bd7 Nc5 44.Bf5 Nd3 45.Bh7 Bb4 46.Be4 Bc5 47.Kg2 Ne1 48.Kg3 Bb4 49.Kg4 Ba5 50.h4 Be6 51.Kg3 Bd8?? 52.h5 (52.h5 Ba5 53.h6–+). bratek55 (1705) – demon71, kurnik, 2011.

6.0-0 Bg4

7.b5 Qd7 8.a4 c6 9.Nc3 a6 10.h3 Bf3 11.Bf3 e5 12.d4 e4 13.Be2 Qd6 (better is 13...b6=) 14.Ba3+/- Qe6 15.Bf8 Bf8 16.Qb1 Bd6? (better is 16...Nbd7+–) 17.ba6 Na6 18.Qb7 (18.Qb7 Nc7 19.a5+–) 1–0. Heqexe – Stucer, internet, 2017.

7.c4 a5 8.b5 c6 9.a4 Bf3 10.gf3 (10.Bf3 dc4 11.Na3 cb5 12.Nb5 Nbd7=) 10...Nbd7 11.d4 dc4 12.Bc4 Nd5 13.Bd5 (13.bc6 bc6 14.Qc2 e5+=) 13...cd5 14.Nc3 Nb6 15.Ne2 (15.Qd3 Nc4 16.Ba3 Re8-/+) 15...Nc4 16.Bc3 Qd7 17.Nc1 (17.Qd3 Rfc8-/+) 17...Rac8 18.Nb3 (18.Re1 Qf5-/+) 18...b6 (18...Ne3 19.fe3 Rc3 20.Re1-/+) 19.Nd2 (better is 19.Rc1!?-/+) 19...Ne3!–+ 20.fe3 Rc3 21.Qe2 Rfc8 22.Rf2 Qf5 23.e4? Qg5 24.Rg2 Bd4 (24...Bd4 25.Kh1 Rc1 26.Nf1 Qh5 27.Rc1 Rc1 28.ed5 Qe5–+) 0–1. pumpkin (2015) – hrenette (2380), net–chess.com, 2003.

7.c4 dc4!? 8.Bc4 Qd6=.

7.d3 Na6 8.b5 Nc5 9.Nbd2 Na4 10.Bd4 c5 (10...a6 11.c4 ab5 12.cb5=) 11.bc6+= bc6 12.c4 Nb6 13.Ne5 Be2 14.Qe2 dc4 15.Ndc4 Nc4 16.Nc4 c5 17.Be5 Qd5 18.Rfd1 Rfd8 19.Rd2 h6 20.Rad1 e6 21.f3 Qc6 22.d4 Rac8= 23.Rc1 cd4 24.Bd4 Qa6 25.Rdc2 Nd5 26.Bg7 Kg7 27.Kf2?? Nb4–+ 28.Rc3 Na2 29.Qb2 Nc1 30.Rc1 Kg8 31.Ne5 Rc1 32.Qc1 Qa2 33.Kg3 Rd2 34.Qc7 Rg2 35.Kf4 g5 36.Ke4 f5 37.Kd3 Rd2 (37...Rd2 38.Kc3 Rc2 39.Kd3 Qb3 40.Qc3 Qc3#) 0–1. Arztmann,Wolfgang (1985) – Wochein,Marco (1755), Feffernitz Raika op, 1999.

7.d3 Nbd7 8.Nbd2 Re8 9.h3 Be6 10.a3 b6 11.c4 dc4 12.Nc4 Bc4 13.dc4 Nf8 14.Qc2 e6 15.Rad1 Qe7 16.Ne5 h5 17.Bf3 Rac8 18.Bb7 N6h7 19.Bc8 Rc8 20.Nc6 Qg5 21.Bg7 Kg7 22.Qc3 Kg8 23.Qe5 Nf6 24.Ne7 Kg7 25.Qg5 1–0. Phomopsis – Pastrovix (1665), lichess.org, 2019.

7.d3 Bf3 8.Bf3 c6 9.Nd2 Nbd7 10.c4 e6 11.cd5 cd5 12.Rc1 Rc8 13.Qb3 Rc1 14.Rc1 Nb6 15.h3 Nh5 16.Bh5 gh5 17.Bg7 Kg7 18.Qc3 Kg8 19.Qe5 f5 20.Qe6 Kh8 21.Nf3 Qf6 22.Qe5 Qe5 23.Ne5 Rf6 24.Rc7 d4 25.ed4 Nd5 26.Rb7 f4 27.Nf7 Kg8 28.Ng5 h6 29.Ne4 Ra6 30.b5 Ra2 31.Rd7 Nb6 32.Nf6 Kf8 33.Rd8 Ke7 34.Rh8 Kf6 35.Rh6 Kg7 36.Rh5 Rd2 37.Rf5 Rd3 38.Rf4 Nd5 39.Rg4 Kf6 40.f4 Ne3 41.Rg3 Kf5 42.Rf3 Rd1 43.Kf2 Nd5 44.g4 Kf6 45.f5 Rd4 46.Rb3 Nb6 47.Ke3 Rd5 48.Ke4 Re5 49.Kd4 Rd5 50.Ke4 Rc5 51.Kd4 Rc1 52.Kd3 Rh1 53.Ke4 Nd7 54.Rc3 Nb6 55.Rc6 Kg5 56.Rg6 Kh4 57.Rh6 Kg3 58.f6 Rf1 59.Ke5 Nd7 60.Ke6 Nc5 61.Kd5 Nd7 62.Kd6 Nf8 63.Ke7 Rb1 64.Kf8 Rb5 65.f7 a5 66.Kg7 Rb7 67.Kg8 Rb8 68.f8Q Rf8 69.Kf8 a4 70.Ra6 Kh3 71.Ra4 1–0. Phomopsis – Mastiano, lichess.org, 2019.

7.Ne5 Be2 8.Qe2 e6 9.d4 Nbd7 10.Nd2 Ne8 11.Nd7 Qd7 12.a4 Nd6 13.b5 b6 14.c4 Nf5 15.g4 Nd6 16.cd5 ed5 17.f4 Rfe8 18.Qf3 Ne4 19.Ne4 Re4 20.Qh3 Rae8 21.Rf3 f5 22.g5 c5 23.Rb1 cd4 24.ed4 Bd4 25.Bd4 Rd4 26.Qh6 Ree4 27.Rh3 Rf4 28.Rg3 Rg4 29.Rg4 Rg4 30.Kf2 Qe7 31.Re1 Qc5 32.Kf3 Qc3 33.Re3 Qg7 34.Re8 Kf7 35.Re7 Ke7 36.Qg7 Kd6 37.Qa7 Rg5 38.Qb6 Ke5 39.Qe3 Kf6 40.Qg5 Kg5 41.b6 d4 42.b7 d3 43.Ke3 f4 44.Kd3 Kg4 45.b8Q Kf3 46.Qf8 1–0. Adjailton (1865) – mojtabakarkhane44 (1640), lichess.org, 2020.

7.d3 c6

8.Nbd2 Qb6 9.a3 Nbd7 10.c4 dc4 11.Nc4 Qc7 12.Qb3 Nd5 13.Bg7 Kg7 14.Rac1 Bf3 15.Bf3 e6 16.g3 N7b6 17.Nd2 Qe5 18.Bg2 Ne3?? (18...Rfd8 19.b5 cb5 20.Qb5+=) 19.fe3?? (better is 19.Nf3 Qd5 20.Qc3 f6 21.fe3+–) 19...Qe3+/- 20.Rf2 Nd5 (20...Rad8 21.Rc3+/-) 21.d4! Qd4 22.Nf3 Qb6 23.Rc5 Rad8 24.Ne5 f6 25.Nc4 Qc7 26.Ne3 Ne3 27.Qe3 Rd1 28.Rf1 Rf1 29.Bf1 e5 30.Bc4?? Rd8 31.Be2+= Rd4 32.b5 Qd6 33.bc6?? Qc5–+ 34.cb7 Rd1! 35.Kf2 Qe3 36.Ke3 Rb1 37.Ba6 Kf7 38.g4? Rb6 39.Bc4 Ke7 40.Bd5 Kd6 41.Bg2 Kc7 42.h4 Rb7 43.Bb7 Kb7 44.Ke4 Kc6 45.a4 a5 46.h5 gh5 47.gh5 Kc5 48.Kf5 Kd4 49.Kf6 e4 50.Kg7 e3 51.Kh7 e2 52.Kg6 e1Q 53.h6 Qh1 54.h7 Kc4 55.Kg7 Kb4 56.h8Q Qh8 57.Kh8 Ka4 (57...Ka4 58.Kg7 Kb5 59.Kf6 a4 60.Kg6 a3 61.Kg5 a2 62.Kf5 a1Q 63.Ke4 Kc5 64.Kf5 Qf1 65.Ke5 Qd3 66.Kf4 Kd5 67.Kg5 Qf3 68.Kh4 Ke6 69.Kg5 Qg3 70.Kh5 Kf5 71.Kh6 Qg6#) 0–1. bratek55 – mates72, kurnik, 2011.

8.Nbd2 Nbd7

9.Rc1 Qc7 10.c4 e5 11.cd5 Nd5 12.a3 Qd6 13.h3 Bf3 14.Bf3 f5 15.Qb3 N7f6? (better is 15...Rf7+=) 16.e4+– fe4 17.de4 (17.Ne4?! Qe6+/-; 17.Be4?! A) 17...Ne4? 18.de4 (18.Ne4?! Qe6=) 18...Rad8 19.ed5 cd5 20.Qe3+–; B) 17...Rae8=) 17...Qd7 18.ed5 cd5 19.Be5 Rae8 (19...Rad8 20.Rfe1 Rfe8 21.Re3+–) 20.Bb2 Kh8 21.Rfe1 Ne4 22.Bg7 Kg7 23.Ne4 de4 24.Be4 Qd2 25.Qe3 Qb2 26.Rc7 Kh8 27.Qc3 Qc3 28.Rc3 Re5 29.f3 Rfe8 30.Rc7 R5e7 31.Rec1 Kg7 32.Re7 Re7 33.Kf2 b6 34.Ke3 Kf6 35.g4 Kg5 36.f4 Kh4 37.Rh1 Rc7 38.f5 Rc3 39.Kd4 Ra3 40.f6 Ra2 41.Rf1 1–0. bratek55 (1645) – amator17, kurnik, 2011.

9.Rc1 Bf3 10.Bf3 e5 11.g3 (11.c4 Qe7 12.cd5 cd5+= (worse is 12...Qb4 13.dc6 Qb2 14.cd7+/-)) 11...h5 (11...a5 12.ba5 Qa5 13.Ra1+=) 12.Bg2 Qe7 13.a3 e4 (better is 13...a5!? 14.ba5 Ra5=) 14.de4+/- Ne4 15.Bg7 Kg7 16.Ne4 de4 17.Qd4 Nf6 18.Rfd1 a6 19.c4 Rad8 20.Qc3 Rd1 21.Rd1 Rd8 22.Rd8+– Qd8 23.Be4 Qd1 24.Kg2 h4 25.Qd3?? Qg4?? 26.f3+/- h3 27.Kf2 Ne4 28.Qe4 Qe4 29.fe4 Kf6 30.Kf3 Ke5 31.g4 g5 32.c5+/- f6 33.a4 Ke6 34.Ke2 Ke5 35.Kd3 Ke6 36.Kd4 Kd7 37.e5?? Ke6?? 38.ef6+– Kf6 39.a5 Ke6 40.Ke4 Kf6 41.Kf3 Ke5 42.Kg3 Ke4 43.Kf2?? Kd5= 44.Kf3 Ke5 45.Ke2 Ke4 46.Kd2 Ke5 47.Kd3 Kd5 48.e4 Ke5 49.Ke3 Kf6 50.Kd4 Ke6 51.e5 Ke7 52.Ke3 Kf7 53.Kf3 Ke7 54.Ke3 Kf7 55.Kd4 Ke7 56.Ke4?? Ke6= 57.Kd4 Kf7?? 58.Ke3+– Ke7 59.Kf3 Kf7 60.Ke3?? Ke7= 61.Kf3 Kf7 62.Ke4?? Ke6= 63.Kd4 ½–½. bratek55 (1665) – amator17, kurnik, 2011.

9.c4 dc4 10.Nc4 Bf3 11.Bf3 e6 12.Qb3 Nd5 13.Bg7 Kg7 14.g3 Qf6 15.Bg2 N7b6 16.e4 Nc3 17.Rae1 Nb5 18.a4 Nd4 19.Qa2 Nc4 20.Qc4 e5 21.f4 Rad8 22.fe5 Qe5 23.Rf2 Ne6 24.Bf1 Qd4 25.Qd4 Nd4 26.Kg2 f6 27.Rb2 Rfe8 28.b5 c5 29.a5 f5 30.ef5?? Re1–+ 31.fg6 hg6 32.Kf2 Re5 33.b6 a6 34.Kg2 Rf8 35.Rb1 Re3 36.Rc1 Nf3 37.Rc5 Nd2 38.Rc1 Nf1 39.Rf1 Rf1 40.Kf1 Rd3 0–1. bratek55 (1785) – parijo (1705), kurnik, 2011.

9.c4 dc4 10.Nc4 Bf3 11.Bf3 e6 12.Qb3 Nd5 13.Bg7 Kg7 14.g3 Qg5 15.Bd5 ed5 16.Nd2 Ne5 (better is 16...Rfe8=) 17.f4+/- Qf5? (better is 17...Qh6!? 18.Qb2 f6 19.fe5 Qe3 20.Kh1 Qe5+/-) 18.fe5 Qe5 19.d4 Qe6 20.Rf3 Rfe8 21.Raf1 f5 22.b5 Rab8 23.a4 a6 24.b6 Re7 25.Kg2 Rbe8 26.a5 Qd6 27.Kf2 Re6 28.Rb1 g5 29.Qb4 Qb4 30.Rb4 Kg6 31.Rb3 h5 32.Kg2?? g4+/- 33.Rf2 Re3 34.Re3 Re3= 35.Kf1 Ra3 36.Re2 Kf6 37.Re8 Ra5 38.Rb8 Ra2 39.Ke1 Rb2 40.Rb7 a5 41.Rb8 Ke7 42.b7 Kd6 43.Ra8 Kc7 44.Ra5+/- Rb7 45.Ra8 Kd6 46.Rh8 Re7 47.Kf2+– c5 48.dc5 Kc5 49.Rh5 Rf7 50.Ke3 d4 51.Kf4 d3 52.Rf5 Rf5 53.Kf5 Kd4 54.Kg4 Ke3 55.Nf3 d2 56.Nd2! Kd2 57.h4 (57.h4 Kd3 58.Kf5 Kc4 59.h5 Kd5 60.g4 Kd6 61.h6 Ke7 62.h7 Kf7 63.h8Q Ke7 64.Qe5 Kd8 65.Qc5 Kd7 66.g5 Kd8 67.Ke6 Ke8 68.Qe7#) 1–0. bratek55 – mates72 (1610), kurnik, 2011.

9.c4 e6 10.Qb3 Rb8 11.Rfd1 dc4 12.dc4 e5 13.c5 e4 14.Nd4 Be2 15.Ne2 Nd5 (better is 15...Qe7!?+=) 16.Ne4 f5 17.Bg7 Kg7 18.Nd6 f4 19.Nd4 fe3?? (19...Qe7+–) 20.Ne6 Kh6 (20...Kh8 21.Nd8 ef2 22.Kf1 Rbd8 23.Rd5 cd5 24.Qd5+–) 21.Nd8 Rbd8 22.fe3 Rf6 23.Rf1 Re6 24.e4 N5f6 25.Qe3 Kg7 26.Qd4 b6 27.g4 Rf8 28.g5 Re5 29.gf6 Rf6 30.Rf6 Kf6 31.Rf1 (31.Rf1 Ke7 32.Rf7 Ke6 33.Qc4 Rd5 34.ed5 cd5 35.Qg4 Ke5 36.Qe2 Kd4 37.Nb5) 1–0. bratek55 (1630) – amator17, kurnik, 2011.

9.h3 Bf3 10.Bf3 e5 11.c4 Re8 12.Qc2 Rc8 13.a4 a5 14.b5 Qb6 15.Rfb1 Qc7 16.cd5 cd5 17.Qc7 Rc7 18.Rc1 Rec8 19.Rc7 Rc7 20.Rc1 Rc1-/+ 21.Bc1 Nc5 22.Bb2 Nd3 23.Bc3 b6 24.Be2 Nc5 25.Be5 Na4 26.Bc7 Nd7 27.Nb3 Nc3–+ 28.Bg4 f5 29.Bf3 a4 30.Nd4?? a3 31.Nb3 a2 32.g4 Nb5 33.Bd8 a1Q 34.Na1 Ba1 35.gf5 gf5 36.Be2? Nc3 37.Bd3 Ne4 38.f3 Nd6 39.Bc7 Nc5 40.Bc2 Nb5 41.Bb6 Nd7 42.Ba5 f4! 43.e4?? d4 44.Ba4-/+ Ne5 45.Bb5 Nf3 46.Kf2 Ng5 47.h4 Ne4 48.Kf3 Nd6 49.Bd3 Bc3 50.Bc7 Nf7 51.Bf4 Kg7 52.Ke4 Kf6 53.Kd5 Bb2 54.Bh7+= Kg7 55.Bd3 Nh6 56.Be5 Kf7 57.Bd4 Bd4 58.Kd4 Kf6 59.Be2 Nf5 60.Ke4 Nh4 61.Kf4 Nf5 62.Bd3 Nd4 63.Be4 Ne6 64.Ke3 Nc5 65.Kd4 Ne4 ½–½. ejdrzej (1830) – feravrana (2010), kurnik, 2011.

5.Be2 a5

6.b5 a4 7.0-0 0-0 8.c4 dc4 9.Na3 Be6 10.Qc2 Nbd7 11.Nc4 Nc5 12.Nce5 b6 (12...Ncd7 13.Rac1+=) 13.Nc6+/- Qd7 14.Ba3 Bf5 15.Qc1 Nd5 16.d4 Ne4 17.Bc4 Bf6 18.Nfe5 Qe6 19.Be7! Rfe8 (19...Ne7 20.Be6 Pinning (20.Be6 Deflection); 19...Be7 20.Bd5 Decoy) 20.Bf6 Nef6 21.f3 Qd6 22.e4 Be6 23.ed5 Nd5 24.Ng4 h5 25.Nf2 Ne3 (25...Kg7 26.Re1+–) 26.Ne4 Qf4 27.g3 Qh6 28.d5! Bh3 (28...Nd5 29.Qh6 Pinning (29.Qh6 Deflection); 28...Bd5 29.Nf6 Double attack (29.Nf6 Decoy)) 1–0. pvanr (1855) – raimon120 (1850), gameknot.com, 2012.

6.b5 c5 7.a4 b6 8.d3 Nbd7 9.Nbd2 0-0 10.0-0 Qc7 11.c4 e6 12.h3 Bb7 13.Qc2 e5 14.cd5 Nd5 15.Nc4 Rad8 16.Rfd1 Rfe8 17.Rd2 e4 18.de4 Nb4 19.Qb3 Bb2 20.Qb2 Be4 21.Nd6 Re6?? 22.Nf7!+– Bf3 23.Nh6 Kf8 24.Qh8 Ke7 25.Qg7 Ke8 26.Qf7# (26.gf3?! Re7 27.Qh8 Nf8 28.Rd8 Qd8+–) 1–0. Yosa,Jhonny – Martinez,Mau (2000), 2nd JAHV McGregor Open, 2011.

6.c3 ab4 7.cb4 0-0 8.0-0 Nc6 9.b5 Nb4 10.a3 Ne4 11.Bg7 Kg7 12.Qb3 c5 13.Nc3 d4 14.Ne4 d3 15.Bd1 Nc2 16.Bc2 dc2 17.Qc2 Bf5 18.Qc3 Kg8 19.Ng3 Bd3 20.Rfe1 f6 21.Qc5 Rc8 22.Qd4 Bb5 23.a4 Ba6 24.Qd8 Rfd8 25.d4 Rc4 26.Nd2 Rc2 27.Nb3 Rdc8 28.Nc5 Bd3 29.Nb7 1–0. Phomopsis (1615) – VHS2 (1630), lichess.org, 2019.

5.Be2 a6

6.d3 Nc6 7.a3 Qd6 8.Nbd2 Bf5 9.0-0 e5 10.c4 Bg4 11.cd5 Qd5 12.e4 Qe6 13.Rc1 0-0 14.Ng5 Be2 15.Qe2 Qg4 16.Ngf3 Nh5 17.h3 Nf4 18.hg4 Ne2 19.Kh2 Nc1 20.Rc1 Rfd8 21.Nc4 Rd3 22.Be5 Rf3 23.Bg7 Rf2 24.Kg3 Ra2 25.Bh6 Re8 26.Na5 Ra3 27.Kh2 Ne5 28.Rc7 Ng4 0–1. sunnyda – elwis100 (1780), kurnik, 2012.

6.d3 Bf5 7.0-0 (7.Nd4 Bd7=) 7...Qd6 (7...Nc6 8.a3=) 8.c4 (8.a3=) 8...dc4 (better is 8...Qb4!? 9.Bc3 Qb6 10.cd5 c6=) 9.e4+/- cd3 10.Bd3 Nc6 11.ef5 0-0-0 (11...Rd8 12.Bc2 Qb4 13.Qc1+=) 12.Be2 Qb4 13.Qc2 gf5 14.Nbd2 (14.Qf5 e6 15.Qc2 Rhg8+/-) 14...Qf4 15.Rab1 Nb4 (15...e6 16.Ba6! ba6 17.Qc6+–) 16.Qb3 Rd2 17.Nd2 Qd2 18.Bf3 a5 19.Rfd1 Qf4 (19...Qh6 20.a3 Ne4 21.ab4 Bb2 22.ba5+–) 20.Qf7 Qh6 21.Be5 (21.Be5 Nh5 22.Qe7 Be5 23.Qe5+–) 1–0. Benassi,Aspasio (2290) – Niewold,Jaap (1710), VWC5/pr17 ICCF, 2012.

5.Be2 b6

6.0-0 Bb7 7.d3 0-0 8.Nbd2 Nbd7 9.c4 dc4 10.Nc4 c5 11.Qb3 cb4 12.Qb4 Nc5 13.d4 Nce4 14.Qb3 Bd5 15.Qd3 Nd6 16.Nce5 Be4 17.Qd2 Nd7 18.Rfc1 Ne5 19.Ne5 Nb7 20.Nc6 Bc6 21.Rc6 Rc8 22.Rac1 Rc6 23.Rc6 Nd6 24.h3 Qd7 25.d5 Bb2 26.Qb2 e6 27.Qd4 ed5 28.Qd5 Rd8 29.Bg4 Qe7 30.Bf3 Nf5 31.Qb3 Nh4 32.Bd5 Kg7 33.Qc4 Qg5 34.g4?? Qd5 35.Qd5 Rd5 36.Rc7 Ra5 37.Kh2 Ra2 38.Kg3 g5 39.f4 h6 40.fg5 hg5 41.Rc4 b5 42.Re4 a6 (42...a6 43.Rb4 Rg2; 42...Rg2) 0–1. elsh1403 – ratoszyn1, kurnik, 2011.

6.0-0 Bb7 7.d3 c5 8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nbd2 Qc7 13.c4 0-0 14.Qc2 Nh5 15.Bg7 Kg7 16.cd5 Bd5 17.Nc4 Bc4 18.Qc4 Nhf6 19.Ra1 Ne5 20.Qc3 Nf3 21.Bf3 Rd8 22.h3 Qd6 23.Rd1 Kg8 24.d4 Qc7 25.dc5 Rd1 26.Bd1 bc5 27.Bf3 Nd7 28.Bc6 Nb6? 29.Qc5+– e6 30.g3 Qd8 31.Kg2 Na4 32.Qa7 Nb6 33.h4 Kg7 34.Qa1 Kf8 35.Qh8 Ke7 36.Qh7 Qd6 37.Qh8 Qd2 38.Qe8 Kf6 39.Qh8 Ke7 40.Qd4 Qa5 41.g4 Na4 42.h5 gh5 43.gh5 Qe1 44.h6 Qe2 45.Qh4 Kd6 46.h7 Nc3 47.h8Q Nd1 48.Q8d4 Kc7 49.Qg3 e5 50.Qge5 Kc8 51.Qd7# 1–0. ejdrzej (1735) – danielos1992 (1740), kurnik, 2012.

6.0-0 c5 7.bc5 bc5 8.d3 Qb6 9.Qc1 0-0 10.Nbd2 Nc6 11.a3 Qc7 12.c4 d4 13.ed4 Ng4 (13...cd4 14.Nd4 Nd4 15.Bd4=) 14.d5 Bb2 15.Qb2 Nd4 16.Rfe1 Ne2 17.Re2 h6 18.h3 Nf6 19.Rae1 e6?? (19...Re8 20.Qe5 Qa5 21.Qf4+–) 20.de6 (better is 20.Qf6 Qd8 21.Qf4+–) 20...fe6 21.Qe5 Qe5 22.Ne5 Nh5 23.Ng6 Rf6 24.Ne7 Kf7 25.Nc8 Rc8 26.Ne4 Nf4 27.Nf6 Ne2 28.Re2 Kf6 29.Rb2 Rd8 30.Rb3 Ke5 31.Kf1 h5 32.Ke2 Kd4 33.f3 Rd7 34.g4 hg4 35.hg4 e5 36.Kd2?? Rh7+/- 37.Ke2 Rh2 38.Ke1 Ke3 39.d4 Kd4 40.Rb7 Ke3 41.Kd1 Kd3 42.Kc1 Kc4 43.Ra7 Kc3 44.Kd1 Rf2 45.Rf7 Kb3 46.Rf5 Ka3 47.Ke1 Rh2 48.Re5 c4 49.Rc5 Kb3 50.g5 Rg2?? 51.f4 c3= 52.Kf1 Rh2 53.g6+/- (53.g6 Rh4 54.f5=) 1–0. exp2005 – pawelpit, kurnik, 2011.

6.0-0 e6 7.a4 Bb7 8.b5 0-0 9.c4 dc4 10.Bc4 Nbd7 11.Nc3 c5 12.bc6 Bc6 13.Rc1 (13.d4 Qc8 14.Be2 Rd8+=) 13...Qe7 14.d4 a6 15.d5 ed5 16.Nd5 Bd5 17.Bd5 Nd5 18.Bg7 Ne3?? (18...Kg7 19.Qd5 Rfd8 20.Rc7+=) 19.fe3 (better is 19.Bf8 Rf8 20.fe3 Qe3 21.Kh1+–) 19...Qe3?? (better is 19...Kg7 20.Qd4 Nf6=) 20.Rf2?? (20.Kh1 Kg7 21.Qd7 Rfd8+–) 20...Nc5?? (better is 20...Kg7 21.Qc2 Rac8 22.Qb2 f6–+) 21.Bd4+– Ne4 1–0. chighorin – rysiek51, kurnik, 2011.

5.Be2 Nc6

6.a3 e5 7.c4 (7.Ne5!? Ne5 8.Be5+/-) 7...d4 (7...e4 8.Nd4=) 8.ed4 ed4 9.d3 Bg4 10.0-0 0-0 11.h3 Bd7 12.Nd4 (12.b5 Ne7+/-) 12...Qc8? (better is 12...Nd4!? 13.Bd4 Bh3=) 13.Nc6 Bc6 14.Bf3 Re8 15.Bc6 bc6 16.Nd2 Qf5 17.Nf3 Rad8 18.d4 Ne4 19.Re1 g5 20.Qc2 Nd6 21.Re8 Re8 22.Re1?? Qc2–+ 23.Re8 Ne8 0–1. Fournier,Frederic (1845) – acuanimbus (1860), Active (3/0), 2004.

6.a3 Bg4 7.0-0=.

6.b5 Na5 7.d3 0-0 8.0-0 c6 9.bc6 Nc6 10.Nbd2 e6 11.Rb1 Bd7 12.Bf6 Bf6 13.Rb7 Rb8 14.Rb8 Qb8 15.Nb3 Ne5 16.Qb1 Qc7 17.d4 Nf3 18.Bf3 Rb8 19.Qc1 Ba4 20.Nc5 Bb5 21.Re1 Be7 22.Nb3 Ba4 23.Be2 Bb4 24.Rd1 Kg7 25.c4 dc4 26.Qc4 Qc4 27.Bc4 Ba3 28.Rb1 a5 29.g3 Rb4 30.Nd2 Bc2 31.Rb4 Bb4 32.Nb3 a4 33.Nc5 Kf8 34.Nd7 Ke7 35.Ne5 Bd6 36.Nc6 Ke8 37.Bb5 Kf8 38.Nb4 Bb4 39.Kf1 Bb1 40.Ba4 Ba2 41.Ke2 Bc4 42.Kf3 Bd5 43.e4 Bc4 44.Bc2 Ke7 45.Ke3 Kd6 46.e5 Kd5 47.Be4 1–0. Phomopsis – abdullah0090, lichess.org, 2018.

6.b5 Nb4 7.a3 +–.

6.b5 Nb8 7.d4 Bd7 8.0-0 h5 9.Nbd2 h4 10.a4 h3 11.g3 Ne4 12.Ne4 de4 13.Ne5 Be5 14.de5 e6 15.Bg4 a6 16.Qd4 ab5 17.ab5 Ra1 18.Ba1 Bb5 19.Qd8 Kd8 20.Rd1 Ke7 21.Rd4 Rd8 22.Re4 Rd2 23.c4 Bc6 24.Rd4 Rd4 25.Bd4 Nd7 26.Kf1 Bg2 27.Ke1 c5 28.Bc3 Nb6 29.Kd2 Nc4 30.Kd3 Nb6 31.Ba5 Nd7 32.Kc4 b6 33.Bc3 Bf1 34.Kb3 b5 35.Be1 Ne5 36.Bd1 Nd3 37.Bd2 Nf2 38.Bc2 Nd3 39.Bd3 Bd3 40.Kc3 Bf1 41.e4 Kd6 42.Bf4 e5 43.Bg5 Bg2 44.Bf6 Be4 45.Bg5 Kd5 46.Be3 b4 47.Kb3 Bd3 48.Kb2 c4 49.Kc1 c3 50.Bf2 Kc4 51.Bb6 e4 52.Bf2 b3 53.Bb6 b2 54.Kd1 b1Q 0–1. joaquimbage – gasajole, kurnik, 2012.

5.Be2 Qd6

6.a3 0-0=.

6.a3 c5 7.bc5 Qc5 8.0-0 0-0 9.d4 Qc7 10.Nbd2 Nc6 11.c4 e6 12.cd5 ed5 13.Rc1 Qe7 14.h3 Bd7 15.Ne5 Rac8 16.Nd7 Qd7 17.Bf3 Rfe8 18.Nb3 b6 19.a4 Ne7 20.Nd2 Nf5 21.Rc8 Rc8 22.Qb3 Qd6 23.Ba3 Qd7 24.Rc1 Rc1 25.Bc1 Nh4 26.Be2 Ne4 27.Ne4 de4 28.Bc4 h5? 29.Ba3 Qf5 30.Be7+– g5 31.Bd5 Ng6 32.Bb4 g4 33.hg4 hg4 34.g3 Bh6 35.Qc4 Qf3 36.Qc8 Kg7 37.Qc1 Nh4? 38.gh4+– g3 39.Qf1?? gf2-/+ 40.Kh2 Be3 41.Bd6?? Bf4-/+ 42.Bf4 Qf4 43.Kh1? e3 44.Qg2 Kf6?? 45.Bc4? Qh4–+ 46.Qh2 Qe4 47.Qg2 Qd4 48.Bf1? Qh4 49.Qh3 Qe4 50.Kh2 Qf4 51.Qg3 Qg3 52.Kg3 Ke6?? 53.Kf3= Kd5 54.Ke3 Kc5 55.Kf2 Kb4 56.Bb5 a6 57.Be8 b5 58.ab5 ab5 59.Ke3 Kc5 60.Kd2 b4 61.Kc2 b3 62.Kb2 Kd6 63.Bb5 Ke5 64.Bf1 f5 65.Be2 f4 66.Kb3 Ke4 67.Bf1 Ke3 68.Bc4 f3 0–1. ejdrzej (1665) – fabinou69 (1755), kurnik, 2012.

5.Be2 Nbd7

6.0-0 0-0!?=.

6.0-0 c5 7.bc5 Nc5 8.d3 (8.Bd4 b6=) 8...0-0 9.Nbd2 Bd7 (9...Bf5 10.Rb1=) 10.c4 (10.h3 Na4 11.Bd4 Ne8=) 10...Ba4 (10...Rc8!?+=) 11.Qb1= dc4 (11...Ne6 12.Rc1=) 12.Nc4 Rc8 (12...b5 13.Nce5=) 13.Rc1 (13.Bf6 Bf6 14.d4 b5+=) 13...Qd5 (13...Ne6 14.Be5 Bc6 15.Nd4=) 14.Nfe5 (14.e4 Qd7=) 14...Qe6 15.Bd4 (15.d4 Ncd7=) 15...Nfd7 (15...Nd5 16.Qb2=) 16.Qb2 (16.Nd7 Qd7 17.Bg7 Kg7+=) 16...Rfd8 (16...Ne5 17.Ne5 b6 18.f4+=) 17.Nf3 (17.Nd7 Bd4 18.Nc5 Bc5+=) 17...f6 (17...Bh6 18.Bc5 Nc5 19.d4+/-) 18.Bc5 Rc5 (18...Nc5!? 19.d4 Ne4 20.Qb7 Bc6+=) 19.Qb7+/- Bc6?? (19...Qc6 20.Qb4 Rb8 21.Qa3+–) 20.Nd4 (better is 20.Qc7 Re8 21.Nd4+–) 20...Qd5 (20...Bb7?? 21.Ne6 Rcc8 22.Nd8 Rd8 23.Na5+–) 21.Nc6 Qc6 22.Qc6 (22.Qa7? Ra8 23.Qc5 Qc5–+ (23...Nc5?! 24.d4+=)) 22...Rc6 23.Na5 Ra6 (23...Rc1 24.Rc1 Nb6 25.d4+–) 24.Nc6 Re8 25.a4 (25.d4 Ra3+–) 25...Nb8 (25...Ne5 26.Nd4+–) 26.Nb4 (26.Ne7 Re7 27.Rc8 Kf7 28.Rb8 Re8+–) 26...Rb6 27.Nd5 (27.Rab1 e5+–) 27...Rb2 28.Kf1 (28.Nc7 Rc8 29.Bf3 h6+–) 28...f5 (28...e6 29.Nc7 Re7 30.Nb5+–) 29.d4 e5 30.Nc7 Rc8 31.Bc4 Kh8 32.Be6 Rd8 33.d5 e4 34.Rab1 Nd7 35.Rb2 Bb2 36.Rb1 Be5 (36...Bf6 37.Rb7 a5 38.Bf5 gf5 39.Ne6+–) 37.Rb7 (37.Nb5 Nc5 38.Na7 Ra8+–) 37...a5 (37...Nc5 38.Ra7 Na4 39.Bf5+/-) 38.Nb5 (38.Na6 Nf8+–) 38...Nc5 (38...Nf6 39.Na7 Nd5 40.Nc6+/-) 39.Ra7 Na4 40.Ra5 Nc5 41.f4 (41.Nd4 Bd4 42.ed4 Nb7+/-) 41...ef3+= 42.gf3 Ne6 (42...Bh2 43.f4 Ne4 44.Nd4+=) 43.de6+/- Kg7 44.f4 (44.Ra7 Kf6 45.f4+/-) 44...Bb8 (44...Bd6!?+/-) 45.Nd4+– Kf6 46.Ra6 (46.Ra8 Rc8+/-) 46...Rc8+/- 47.Ke2 Rc1 48.Kd3 Bc7 49.h4 (49.Ra7 h6+/-) 49...Ke7 (49...Bd8!?+/-) 50.h5! Bd6 (50...gh5 51.Nf5 Deflection) 51.Ra7 Rc7 52.Rc7 Bc7 53.Kc4 (better is 53.h6+/-) 53...Bb6?? (better is 53...Bd6+/-) 54.hg6+– hg6 55.Kd5 Bc7 (55...Ke8 56.Ke5 Bd8 57.Nc6+–) 56.Nc6 Kf6 57.Nd4 (57.Na7 Ba5 58.Kd6 Bb4 59.Kd7 g5+–) 57...Ke7 58.Nf3 With the idea Kd8 58...Bb6 59.Nh4 Be3 60.Ng6 Kf6 61.Kd6?? (better is 61.e7 Kf7 62.Ke5+–) 61...Bd2?? (better is 61...Kg6 62.Kd7 Bc5=) 62.e7 Bb4 63.Kd7 (63.Kd7 Be7 64.Ne7 Kg7 65.Ke6 Kf8 66.Nf5 Ke8 67.Nd6 Kd8 68.f5 Kc7 69.f6 Kb6 70.Ne4 Ka6 71.f7 Kb5 72.f8Q Kc4 73.Qa3 Kb5 74.Nd6 Kb6 75.Qb3 Kc5 76.Ke5 Kc6 77.Qb7 Kc5 78.Qb5) 1–0. Curic,Drazen (2220) – Bubalovic,Davorin (2240), 26. TCh–CRO Div 1b, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d5 5.Be2 Nbd7)

6.c4 c6 7.cd5 cd5 8.Nc3 0-0 9.0-0 b6 10.Rc1 Bb7 11.d4 e6 12.b5 Qe7 13.a3 Rfc8 14.Na2 Ne4 15.Nb4 Nd6 16.Qb3 Qe8 17.Rc8 Rc8 18.Rc1 Rc1 19.Bc1 Qc8 20.Bb2 Bf8 21.Qc3 Qc3 22.Bc3 Ne4 23.Be1 Bd6 24.Bd3 Nef6 25.a4 Nb8 26.Nc2 Kf8 27.Bb4 Ne8 28.Bd6 Nd6 29.Nb4 f6 30.Nd2 Ke7 31.f3 f5 32.Kf2 Kf6 33.Ke2 g5 34.Nb3 h5 35.a5 Ke7 36.ab6 ab6 37.Kd2 Nd7 38.Kc3 Nf6 39.Na6 Nfe8 40.Na1 Kd7 41.Nc2 Nf6 42.Ncb4 g4 43.Nc5 Ke7 44.Nb7 Nb7 45.Nc6 Kd6 46.Na7 Kd7 47.Nc6 Nd6 48.Ne5 Ke7 49.Nc6 Ke8 50.Nb8 Kf7 51.Na6 Nd7 52.Kb4 Nb7 53.f4 h4 54.Nc7 Ke7 55.Be2 Nd6 56.Bd3 Nf6 57.Na8 Nc8 58.Nc7 Kd7 59.Na6 Kd6 60.Nb8 Ne7 61.Na6 Nd7 62.Ka4 Ng8 63.Nb4 Ngf6 64.Nc6 Nh5 65.Kb4 Ndf6 66.Ne5 h3 67.g3?? Ng3!–+ 68.Nf7 Ke7 69.Ng5 Nge4 70.Kb3 Ng5 71.fg5 Ne4 72.g6 g3 0–1. Rouse,Tevin A – Ferrero,Steve (2080), US Amateur Team–ch East, 2011.

5.Be2 e6

6.0-0 c6 7.c4 0-0 8.Nc3 Nbd7 9.a4 b5 (better is 9...a5 10.b5 dc4 11.Bc4 Nb6+=) 10.ab5+/- cb5 11.cb5 Nb6 12.Na4 Bd7 13.Nc5 Be8 14.d4 Nc4 15.Bc4 dc4 16.Qa4 a6 17.Na6 Qb6 18.Qa5 Qa5 19.Ra5 Nd5 20.Rc1 Bb5 21.Rb5 Ra6 22.Rc4 Ra2 23.Bc1 Ra1 24.h3 Rfa8 25.Kh2 Rb1 26.Ne5 Ra4?? 27.Nd3 Bf8 28.Nc5 Raa1 29.Bd2 Rd1? 30.Rc2+– Rab1 31.Nd7 Be7 32.Rb8 Kg7 33.e4 Bd6= 34.e5 Bb8 35.Nb8 Nb4 36.Bb4 Rb4 37.Nc6 Ra4 38.f4 Rf1 39.g3 Raa1 40.h4 Rh1 41.Kg2 Rag1 42.Kf3 h5 43.Ne7 Rh3 44.Rg2 Rhh1 45.d5 Rg2 46.Kg2 Rd1 47.d6 Kf8 48.Nc6 Ke8 49.Ne7 Kd7 50.Ng8 Rd2 51.Kf3 Rd3 52.Ke4 Rg3-/+ 53.Nh6? Rg1?? 54.Nf7= Rh1 55.Nh8 Rh4?? 56.Ng6+– Rg4 57.Nf8 Kd8? 58.Ne6 Kd7 59.Ng5 h4 60.Kf5 Rg1? 61.Nf3 Rg3?? 62.Nh4+– Rh3 63.Ng6 Rh5 64.Kf6 Rh1 65.f5 Rh6 66.Kg5 Rh1 67.Nf8 Ke8 68.Ne6 Rg1 69.Kf6 Kd7 70.Ng7 Rg7 71.e6 Kc6 72.Kg7 (72.Kg7 Kc5 73.d7 Kd6 74.d8Q Kc5 75.e7 Kb5 76.e8Q Kc5 77.Qc7 Kd4 78.Qee5 Kd3 79.Qcc3#) 1–0. brother – milous, kurnik, 2012.

6.b5 0-0 7.0-0 Nbd7 8.a4 c6 9.c4 cb5 10.cb5 b6 11.d4 Bb7 12.Nc3 Qe7? (12...Ne4 13.Rc1+=) 13.h3?? (better is 13.Ba3 Qd8 14.Bf8 Bf8 15.Rc1+–) 13...Ne4 (13...Rfc8 14.Qb3+=) 14.Ne4+/- de4 15.Nd2 f5? 16.Ba3+– Qf7 17.Bf8 Rf8 18.Nc4 Qe7 19.Qb3 Bd5 20.Rac1 e5 21.Rfd1 ed4 22.ed4 f4 23.Bg4 h5 24.Bd7+– Qd7 25.Qb4 f3 26.Ne5 Qf5 27.g4 hg4+/- 28.hg4 Qf4 29.Qd6+/- Be5? 30.Qd5+– Kh7 31.Qe5 Qg4 32.Qg3 Qh5 33.Qh2 1–0. lousse (1665) – sportenergy (1615), kurnik, 2012.

6.c4 dc4 7.Bc4 0-0 8.Nc3 Nbd7 9.Qc2 c6 10.Rc1 b5 11.Bb3 a5 12.ba5 Ra5 13.0-0 Bb7 14.Ng5 Nc5 15.d4 Nb3 16.Qb3 Nd5 17.Nge4 Nc3 18.Bc3 Ra8 19.Nc5 Bc8 20.h3 Re8 21.Ne4 Bf8 22.Bb4 Bb7 23.Bf8 Rf8 24.Nc5 Bc8 25.Qc2 Qg5 26.Ne4 Qd5?? 27.Qc6 Qc6+= 28.Rc6 Ra2 29.Nf6 Kg7= 30.Ng4 b4 31.Rb6 f5 32.Ne5+– Ba6 33.Rc1 Rc8 34.Rcc6 Rc6 35.Rc6?? b3-/+ 36.Re6? b2–+ 37.Rb6 Ra1 38.Kh2 b1Q 39.Rb1 Rb1 40.g4 fg4 41.hg4 Rb2 42.Kg3 Kf6 43.g5? Ke6 44.f4? Bb7 45.Nd3 Rg2 46.Kh3 Kf5 47.Nc5 Rb2 48.Kg3 Be4 49.Nd7 Re2 50.Nf6 Re3 51.Kf2 Kf4 52.Nh7 Rd3 53.Ke2 Rd4 54.Kf2 Rd2 55.Ke1 Ra2 56.Kd1 Ke3 57.Kc1 Kd3 58.Kb1 Rh2 59.Nf6–+ Bf5 60.Ka1 Kc3 61.Nd5 Kb3 62.Nc3 Rh1 63.Nb1 Rb1# 0–1. slax1 – tetrapakk, kurnik, 2011.

5.Be2 Nh5

6.c4 Bb2 7.Nc3 Ba1 8.Qa1 dc4 9.Nb5 0-0 10.Bc4 e6 11.0-0 c6 12.Nbd4 b5 13.Be2 f5 14.Ne5 Qf6 15.Bh5 gh5 16.Nef3 e5 17.Nb3 e4 18.Nfd4 h4 19.h3 f4 20.f3 ef3 21.Rf3 Nd7 22.Rf4 Qd6 23.Rf8 Qf8 24.Nc6 Bb7 25.Ne5 Ne5 26.Qe5 Re8 27.Qg5 Qg7 28.Qh4 0–1. axtur777 – cheslav43, lichess.org, 2020.

6.Bg7 Ng7 7.0-0 a5 8.c4 (8.b5 Bg4+=) 8...ab4= 9.a3 (9.Qb3 dc4 10.Qb4 0-0+=) 9...ba3 (9...dc4 10.Bc4 Be6 11.Qb3=+) 10.Ra3 Ra3 11.Na3 0-0 12.cd5 Qd5 13.Bc4 Qd6 14.Qb3 c6 15.d4 b5 16.Bd3 Be6 17.Qb2 Nd7 18.Nc2 Ra8 19.Nb4 Ra4 (19...Bc4 20.Bc4 bc4 21.Nc2=+) 20.Rb1= Nb6 (20...Bc4 21.Bc4 bc4 22.Nc2=) 21.Nd2 (better 21.Ne5 Bc4 22.Bc2+=) 21...Ne8 (better 21...Bf5 22.e4 Bd7=) 22.Ne4+/- Qc7 23.Nc5 Bc8 (23...Bc4!? 24.Na4 Na4+-) 24.Na4 Na4 25.Qb3 Nd6 26.Rc1 Bd7 (26...Nb6 27.Rc6 Qd8 28.Rc5+-) 27.e4 (better 27.Bb5!? Nb5 28.Qa4 Qb7+-) 27...Nb6 28.Nd5 Qa7?? (28...cd5 29.Rc7 Pinning (29.Rc7 Deflection)) 29.Ne7+- Kf8 30.Nc6 Qb7 (30...Qa4 31.Qa4 ba4 32.d5+-) 31.Ne5 (31.Qb4 Nbc8 32.Na5 Qb6+-) 31...Be6 (31...Kg7 32.Qb4 Nbc8 33.Nd7 Qd7 34.Rc5+-) 32.Qb4 Qc7 (32...Nbc8 33.d5 f6 34.de6 fe5 35.Rc8 Ke7+-) 33.Rc7 (33.Rc7 Kg7 34.Qd6 Nc4 35.Qe6 Nb6 36.Rf7 Kh6 37.Qh3 Kg5 38.f4) 1-0. Jeffritz (2465) - alifie (2415), Rated Bullet game, lichess.org, 2020.

5.h3 0-0

6.Be2 b6 7.Nc3 Bb7 8.a3 a5 9.b5 a4 10.0-0 Nbd7 11.Rc1 e5 12.Nb1 e4 13.Nd4 Nc5 14.d3 Qd7 15.Nd2 Rfe8 16.de4 Nfe4 17.Ne4 Ne4 18.c4 dc4 19.Bc4 Nd6 20.Be2 Rec8 21.Bg4 f5 22.Be2 Rd8 23.Ba1 Ne4 24.Qc2 Bc6?? 25.Nc6+– Qc6 26.Qc6 Rd1 (26...Rd1 27.Qa8 Kf7 28.Rc7 Rd7 29.Rd7 Ke6 30.Qd5#). lican – lmi, kurnik, 2012.

6.Be2 c6 7.c4 e6 8.cd5 ed5 9.0-0 Bf5 10.Nc3 Nbd7 11.Rc1 Nb6 12.d3 Qc8 13.Nb5 Qd7 14.Nbd4 Be6 15.Ne6 Qe6 16.a4 a6 17.Nd4 Qd7 18.b5 ab5 19.ab5 Rac8 20.bc6 bc6 21.Qb3 Na8 22.Ba3 Rfe8 23.Qa2 Nh5 24.Nb3 Nf6+/- 25.Nc5 Qc7 26.d4 Ne4 27.Ne4 Re4 28.Bf3+– f5 29.Be4 fe4 30.Rc2 Nb6 31.Bc5 Nc4 32.Rc4 dc4 33.Qc4 Kh8 34.Rc1 h6. lican – najlepszyplat (1745), kurnik, 2012.

4.e3 d6

5.a3 Nbd7 6.d4 b6 7.c4 Bb7 8.Be2 c5 9.dc5 bc5 10.b5 0-0 11.0-0 e5 (better is 11...Qc7!?=) 12.Qd6+/- Re8 13.Nc3 (13.Ne5 Ne5 14.Qc5 Nfd7-/+) 13...Bf8 14.Qd2 e4 15.Ne1 Ne5 16.Qd8 Rad8 17.Nc2 (17.Rd1 Bg7+/-) 17...Nd3 (better is 17...Rd2!? 18.Rac1 Nd3 19.Bd3 ed3=) 18.Rab1+= Nb2 19.Rb2 Nd7 20.Rd1 Ne5 21.Nd5 Bg7 22.Rbb1 f5 23.a4 Re6? (23...Bd5 24.cd5 Rd6 25.a5+/-) 24.a5?? (better is 24.Ne7! Re7 25.Rd8 Kf7 26.a5+–) 24...Red6 25.Ne7 Kf7 26.Rd6 Rd6 27.a6 Ke7 28.ab7 Rb6 29.Rd1 Rb7 30.Rd5 Rd7 31.Rc5 Rd2-/+ 32.Rc7 Kd6 33.Rg7 Rc2 34.Ra7?? Re2–+ 35.Kf1 Rc2 36.Ra6? Kc5 37.b6 Nc4 38.b7 Rb2 39.Ra7 Kc6 40.b8Q Rb8 41.Rh7 Rb2 42.Rg7 Nd2 43.Ke1 Nc4 44.Rg6?? Kd5 45.h4? Ke5 46.h5-/+ Nd6 47.h6 Rb8 48.h7? Rh8–+ 49.Rg7 Kf6 50.Ra7 Nf7 51.g3 Rh7 52.Ke2 Ke5 53.Kd2 Kf6 54.Ke2 Rh6 55.Ke1 Rh5 56.Ke2 Rh3 57.Ke1 Rh1 58.Ke2 Kg5 59.Kd2 0–1. Fournier,Frederic (1790) – gameover2, Active, 2006.

5.a3 e5 6.d3 Be6 7.Be2 Nbd7 8.0-0 Nb6 9.Nbd2 0-0 10.c4 Qd7 11.Rc1 Na4 12.Qc2 Nb2 13.Qb2 e4 14.de4 Ne4 15.Qc2 Nf6 16.Nd4 Bh3 17.Bf3 Rab8 18.Ne2 Bf5 19.Qd1 h5 20.Ng3 Bg4 21.Bg4 Ng4 22.Nge4 f5 23.Nc3 Rbe8 24.h3 Qe7 25.hg4 hg4 26.Nd5 Qh4 27.g3 Qh3 28.Nc7 Re7 29.Nd5 Ref7 30.Nb3 Bb2 31.Rc2 Rh7 32.Ne7 Re7 33.Qd5 Rff7 34.Rb2 Kf8 35.Qd6 Rh7 36.Qd8 Kf7 37.Qd5 1–0. Phomopsis – zetamortis, lichess.org, 2017.

5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.c4 0-0 10.Be2 e5 11.0-0 Bf5 12.d4 Re8 (12...e4 13.Nfd2=) 13.de5+= Ng4 (13...Ne4 14.Nbd2 Nd2 15.Qd2 (worse 15.Nd2 de5 16.e4 Be6=) 15...de5 16.Qd8 Rd8 17.Be5 Be5 18.Ne5+/-) 14.Nd4+/- Ne5 15.Nf5 gf5 16.Nd2 Qa5 17.Qc2 cb5 18.cb5 f4 19.Bc3 (19.e4!?+/-) 19...Qc7+= 20.ef4 Nf3?? (better 20...Ng6 21.Nb1 d5+=) 21.Bf3+- (21.gf3 Re2 22.Qd3 Re6 23.Bg7 Kg7+/-) 21...Qc3 22.Qc3 Bc3 23.Ne4 Bd4 24.Nd6 Re6 25.Nb7 Rb6 (25...Kf8 26.Rd1+-) 26.Rd1 Bf6 27.Nd6 Be7 (27...Kf8 28.Rd5 Be7+-) 28.Nc8 (28.Nc8 Rb5 29.Ne7 Kf8 30.Nc8+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

5.b5 c6 6.a4 a6 (6...e5 7.d4=) 7.c4 Bd7 8.Nc3 cb5 (8...0-0 9.d4=) 9.ab5+= 0-0 10.Be2 Ne4 11.d4 Nc3 12.Bc3 Bg4 13.h3 Bf5 14.0-0 e5 (14...Qc7!?+=) 15.de5+/- de5 16.Be5 Be5 17.Ne5 Nd7 (17...Qe7 18.Ng4 Bg4 19.Bg4+/-) 18.Nd7+– Bd7 19.Bf3 Qc7 20.b6! Qc8 (20...Qb6 21.Qd4 Double attack (21.Qd7 Deflection; 21.Qd4 Decoy)) 21.Qd6 Rd8 (21...Re8 22.Rfd1 Bc6 23.Bd5+–) 22.Qc7 Rb8 23.Rad1 (better is 23.Rfd1 Be6+–) 23...Be6? (23...a5+–) 24.Bb7! Qb7 (24...Rb7 25.Rd8 Double attack (25.Qc8 Decoy); 24...Qb7 25.Rd8 Double attack (25.Rd8 Deflection; 25.Rd8 Overloading)) 25.Rd8 Rd8 26.Qb7 Bc4 27.Qc7 (27.Qc7 Rd3 28.Rb1+–) 1–0. DEFFM – GuestQZKZ, freechess.org, 2018.

5.b5 e5 6.c4 Be6 7.Nc3 Nbd7 8.a4 a6 9.Be2 ab5 10.cb5 0-0 11.0-0 c6 12.Ng5 cb5 13.Ne6 fe6 14.Nb5 Qb6 15.Qb3 Nc5 16.Qb4 Nd5 17.Qa3 Ra4 18.Qa4 Na4 19.Ra4 Nc7 20.Rb4 Na6 21.Ra4 Qc6 22.Rc1 Nc5 23.d4 Na4 24.Rc6 bc6 25.Nd6 Nb2 26.de5 Be5 27.Ne4 Ra8 28.g3 Ra1 29.Kg2 Na4 30.Ng5 Kf8 31.Ne6 Ke7 32.Ng5 Nc3 33.Bd3 Ra2 34.Nh7 c5 35.Ng5 Nd1 36.Nh3 Nb2 37.Bg6 c4 38.Kf3 c3 39.Bb1 Ra1 40.Bc2 Nc4 41.Ng5 Ra2 42.Bd3 c2 43.Bc2 Rb2 44.Bf5 Nd2 45.Kg4 Kf6 46.h4 Nf1 0–1. Abdullaevich (1620) – Pa0s, lichess.org, 2018.

5.b5 Bg4 6.Be2 a6 7.a4 Qd7 8.c4 c6 9.0-0 0-0 10.Nc3 e5 11.d4 h6 (better is 11...Re8!?+=) 12.de5+/- Bf3 (12...Ne8 13.ed6 Nd6 14.c5 Bf3 15.Bf3+/-) 13.ef6+– (13.gf3?! de5 14.Qc2 cb5 15.ab5 Qe6=) 13...Be2 14.Qe2 (14.Ne2!? Bh8+–) 14...Bf6+/- 15.bc6 Qc6 16.Nd5 Bd8 17.Bf6 Nd7?? (better is 17...Kh7+–) 18.Bd8 f5 (18...Kh7 19.Bf6 Rab8+–) 19.Ne7 (19.Ne7 Kf7 20.Nc6 bc6 21.Bc7+–) 1–0. GuestZQXY – elroval, freechess.org, 2018.

5.Qc1 c6 6.c4 Qb6 7.a3 c5 8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nc3 0-0 13.d4 cd4 14.Nd4 Ne5 15.Be2 Qc5 16.Na4 Qc7 17.0-0 d5 18.c5 Neg4 19.b6 Qh2 0–1. Adamkosh (1750) – Mkpoki777 (1830), lichess.org, 2019.

5.c3 0-0 6.c4 Bg4 7.Bd3 (7.d3 h6=+) 7...Nc6 (7...Na6 8.a3=+) 8.a3 (8.b5 Ne5 9.Be2 Ned7=) 8...a5 (8...e5!? 9.Nc3 Re8=+) 9.b5= Bf3 (9...Na7 10.0-0=) 10.Qf3 Ne5 11.Be5 de5 12.Be2 (12.Be4 Rb8=) 12...Ra7 (12...e4!? 13.Qh3 Nd7=+) 13.0-0 e4 14.Qf4 (better is 14.Qh3!?=) 14...Nh5-/+ 15.Qe4 (better is 15.Bh5!? Ba1 16.Be2-/+) 15...Ba1–+ 16.d4 Nf6 17.Qh4? c6 18.Nd2 Bc3 19.Nb3 cb5 20.cb5 e5 21.de5 Be5 22.Rd1 Qc7 23.a4 Qc2 24.Nd2 Bc3 25.Qc4 Rd8 26.h3 Rd2 27.Qc8 Kg7 28.Rd2 Qd2 29.Bf1 Ne4 30.Qc4 Qf2 31.Kh1 Ng3 32.Kh2 Qf1 (33.Qc3 Qf6 34.Qf6 Kf6 35.Kg3 Ra8–+; 32...Nf1 33.Kh1 Ng3 34.Kh2 Ne2 35.Qe2 Be5 36.Kh1 Qe2 37.g3 Bg3 38.Kg1 Qf2 39.Kh1 Qf1) 0–1. tomnrw – Sanji, mySchach.de, 2003.

5.c4 e5 6.Be2 0-0 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2).

5.c4 Bg4 6.Be2 Nbd7 7.0-0 0-0 8.h3 Be6 9.d4 Qc8 10.d5 Bf5 11.Nc3 Ne5 12.Ne5 de5 13.Bd3 Bh3 14.Qf3 Bg4 15.Qg3 e4 16.Be4 Ne4 17.Ne4 Qf5 18.Rab1 e6 19.Bg7 Kg7 20.f3 Bh5 21.Qc7 ed5 22.cd5 Rac8 23.Qg3 Qd5 24.Rfd1 Qf5 25.Nd6 Qe6 26.Nc8 Qe3 27.Kh2 Rc8 28.Re1 Qd3 29.Qe5 Kg8 30.Red1 Qc2 31.Rbc1 Qc1 32.Rc1 Rc1 33.Qe3 a6 34.Qc1 1–0. Chess4Win – Argonautique, lichess.org, 2019.

5.c4 Nh5 6.Bg7+= Ng7 7.d4 0-0 8.Be2 b6 9.0-0 Bb7 10.Nc3 Nd7 11.Rc1 c5 12.a3 cb4 13.ab4 e6 14.Qb3 Rc8 15.Nb5 d5 (15...Nf5!?+/-) 16.Na7 Ra8 17.Nb5 dc4 18.Bc4 (18.Rc4?! Bd5+=) 18...Nf6 19.Be2 Nd5 20.Nc3 (20.Rfe1 Nh5+–) 20...Rc8 21.Nd5 Bd5 22.Qb2 Qe7 23.Ne5 Nf5 24.b5 Qg5 25.Bf3 Nh4? 26.Bd5+– ed5 27.f4 Rc1?? 28.Rc1 Qf5 29.Qc2 Qe6 30.Qc6 Nf5 31.Qe6 fe6 32.Kf2 Ra8 33.Rc2 Ra3 34.Re2 Rb3 35.g4 Nd6 36.Rc2 Rb5 37.Rc6 Ne4 38.Ke2 Rb2 39.Ke1 Rh2 40.Rb6 Ng3 41.Re6 Re2 42.Kd1 Re3 43.Rd6 Re4 44.Rd5 Rf4 45.Rd7 Nf1 46.Ke2 Nh2 47.Ke3 Rf8 48.d5 Re8? 49.Kd4+– Ra8? 50.d6 Ra4 51.Kd5 Ng4 52.Ng4 Rg4 53.Ra7 Rg1 54.Ke6 Re1 55.Kd7 h5? 56.Kd8 h4? 57.d7 h3 58.Ra2 g5 59.Kc8 Rc1= 60.Kb7 Rd1 61.Kc7 Rc1 (61...Rc1 62.Kd6 Rd1 63.Kc7 Rc1 64.Kb6 Rd1 65.Kc7=). ferminkatcho (1765) – cihei247b, kurnik, 2012.

5.Bc4 a6 6.0-0 0-0 7.a4 Bd7 8.d3 Nc6 9.b5 ab5 10.ab5 Ra1 11.Ba1 Na5 12.Nbd2 c6 13.bc6 bc6 14.Ba2 Qb6 15.Nc4 Nc4 16.Bc4 d5 17.Bb3 Bg4 18.h3 Bd7 19.Qd2 Ra8 20.Bd4 c5 21.Be5 e6 22.Rb1 Qc6 23.Qc3+/- Nh5 24.Qb2 f6= 25.Bc3 c4 26.Ba2 f5 27.Ne5 Be5 28.Be5 Qa4 29.Ra1 Qb5 30.dc4 Qb2 31.Bb2 Rb8? 32.Be5 Rc8 33.cd5 ed5 34.Bd5 Kf8 35.Ra8 Ra8 36.Ba8 Ke7 37.c4 Ke6 38.Bd4 Nf6 39.c5 Ne4 40.c6 Bc8 41.Bb7 (41.Bb7 Nd6 42.Bc8 Nc8 43.f3+/-) 1–0. elsh1403 – jojate19, kurnik, 2011.

5.Bc4 c6 6.0-0 d5 7.Bb3 0-0 8.c4 e6 9.Nc3 Ne4 10.Qc2 a5 11.a3 Na6 12.b5 Nac5 13.d4 Nb3 14.Qb3 a4 15.Na4 dc4 16.Qc4 Qd5 (better is 16...Nd6!? 17.Qc2 Nb5=) 17.Qd5+/- ed5 18.Nc3 Nc3 19.Bc3 cb5 20.Rfb1 Bd7 21.a4 (better is 21.Ne5!? Bc6 22.Rc1+/-) 21...Rfc8 22.Bd2 Rc2 (better is 22...Ra4!? 23.Ra4 ba4 24.Rb7 Bg4=+) 23.ab5= Ra1 24.Ra1 Bb5 25.Ra8 Bf8 26.h3 Ba6?? (better is 26...Kg7-/+) 27.Bb4+– Kg7 28.Bf8 Kf6 29.Bd6 h6 30.Ne5 Ke6 31.Bf8 Rc1 32.Kh2 Rc2 33.Re8 Kf6 34.Re7 Rf2 35.Rf7 Ke6 36.Rf2 Bd3 37.Rf7 b5 38.Rb7 Kf5+– 39.Rd7 Ke4 40.Ng6 Ke3 41.Bg7 Bg6 42.Rd5 b4 43.Rb5 Kd3 44.Rb4 Kc3 45.Rb6 Kc4 46.Rg6 Kd5 47.Rh6 Kc4 48.Rh5 Kb4 49.d5 Kc5 50.Bf8 Kb6 51.d6 Kc6 52.Rh7 Kd5 53.d7 Ke5 54.d8Q Kf5 55.Qe7 Kg6 56.Qf7 Kg5 57.Rg7 Kh4 58.Rg4 (58.Be7) 1–0. elsh1403 (1655) – flakpremium (1640), kurnik, 2011.

5.Bc4 e5 6.c3 0-0 7.Qb3 a6 8.Ng5 d5 9.Be2 h6 10.Nf3 Be6 (better is 10...e4!? 11.Nd4 a5=+) 11.Ne5+= d4 12.Bc4 de3 13.de3 Ne4?? (better is 13...Nd5!? 14.Bd5 Bd5=) 14.Be6 Be5 15.0-0 (15.Qd5 Qh4 16.g3+/-) 15...fe6? (better is 15...Bh2 16.Kh2 Qd6 17.Kg1 Qe6= (< 17...fe6 18.Qc2 Qe5 19.f3+/-)) 16.Qe6+– Kh7 17.Qe5 Ng5 18.c4 Nd7?? 19.Qg7 1–0. elsh1403 – colombia27, kurnik, 2011.

5.d3 Nbd7 6.Nbd2 0-0 7.Be2 e5 8.0-0 Re8 9.Ne1 c6 10.c4 Qe7 11.Qb3 d5 12.cd5 Nd5 13.b5 (13.a3!?=) 13...Nc5-/+ 14.Qc2 cb5 15.Bf3 Nb4 16.Qc3? (better is 16.Qb1-/+) 16…Na4–+ (16...Na4 17.Qc1 Nb2 18.Qb2 e4–+) 0–1. Schulte,Hans – Sauer,Daniel, Baden–ch HT1, 2003. (=1.Nf3 g6 2.e3 Nf6 3.b4 Bg7 4.Bb2 d6)

5.Bd3 a6 6.0-0 Nc6 7.b5 ab5 8.Bb5 Bd7 9.d4 0-0 10.a4 Na5 11.Be2 Nc6 12.c4 Na5 13.Nc3 c6 14.d5 cd5 15.Nd5 (better is 15.cd5!? Rc8 16.Rb1=) 15...Nd5+= 16.Bg7 Kg7 (16...Ne3 17.fe3 Kg7 18.Qd3+=) 17.Qd5 (17.cd5!? Qb6 18.Qd2+=) 17...Bc6 18.Qd4 f6 19.Ng5 Qd7 (19...Qc8 20.Qc3=) 20.Qc3 (20.Bg4 Qe8 21.Ne6 Kg8 22.Nf8+/-) 20...Kg8 (worse is 20...Ba4 21.Ra4 Qa4 22.Ne6 Kh8 23.Nf8+/-) 21.Nf3 e5 22.Rfd1 Qe6 23.Nd2 f5 24.Bf3 e4 25.Be2 Rfd8 26.f3 Qe5 27.Qe5 de5 28.fe4 fe4 29.Bg4 Rd3 30.Be6 Kg7 31.Bd5? Bd5?? 32.cd5= Rd5 33.Ne4 Rd1 34.Rd1 Nc4 35.Rd7 Kh6 36.Rb7 Ne3 37.Kf2 Nf5 38.Nc5= Ra5 39.Rb5 Ra8 40.Ne4 Ra4 41.Re5 Ra2 42.Kg1 Ne3-/+ 43.Nc3?? Rg2 44.Kh1 Ng4 45.Kg2-/+ Ne5 46.Ne4 g5 47.Kg3 Kg6 48.h4 gh4 49.Kh4 Nf3 (49...Nf3 50.Kg4 Nd4-/+) 0–1. ariank – rimantutis123, kurnik, 2011.

5.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.d4 d6 5.Nf3).

5.Be2 a5 6.b5 c6 7.a4 0-0 8.0-0 c5 9.c4 b6 10.Nc3 Bb7 11.d4 cd4 12.Nd4 Nbd7 13.Bf3 Bf3 14.Qf3 Qc7 15.Nc6 e5 (better is 15...Ne5!? 16.Ne5 de5+=) 16.Rfd1+/- Nc5 17.Nd5 Nd5 18.Rd5 (18.cd5?! e4 19.Qe2 Bb2 20.Qb2 f5=) 18...Nb7 19.Rad1 f5 20.e4 (better is 20.Be5!? Be5 21.Ne5+–) 20...fe4+/- 21.Qe4 Rf4 22.Qd3 Raf8 23.g3 (better is 23.Ba3 e4 24.Qb1 Rf2 25.Qe4=) 23...Rf2–+ 24.Rd2?? (24.Bc1 Nc5 25.Qe3–+) 24...Rd2 (better is 24...Qf7 25.Bc3 e4 26.Qe4 Rd2 27.Ne7 Kh8 28.Bg7 Qg7–+) 25.Qd2-/+ Qf7 26.Kg2?? Qf1 0–1. mihai740609 – fagus54, kurnik, 2011.

5.Be2 a6 6.0-0 0-0 7.c4 e5 (7...Nc6 8.a3=) 8.d3 (8.d4 ed4 9.Nd4 c5=) 8...Be6 9.h3 Nc6 10.a3 Ne8 11.Nc3 (11.Nc3 Nf6 12.Ng5=). Woelfelschneider,Peter – Voss, 2009.

5.Be2 c5 6.bc5 dc5 7.0-0 0-0 8.c4 Nc6 9.d4 cd4 10.ed4 Bf5 11.d5 Nb4 12.Na3 Qa5 13.Qb3 Ne4 14.Bg7 Kg7 15.Nd4 Nc5?? (better is 15...Rfd8+=) 16.Nf5+– gf5 17.Qb2 (better is 17.Qc3 f6 18.Nc2+–) 17...f6 18.Rab1 Nbd3 19.Bd3+– Nd3 20.Qb3 Ne5 21.f4 Ng4 22.h3 Qc5+= 23.Kh1 Nf2 24.Kh2 h5? 25.Qg3+– Ng4 26.hg4 hg4 27.Qf2?? Rh8 28.Kg3 Qa3= 29.Rb3 Qd6 30.Rb7+/- Rab8 31.Rfb1 Rb7+= 32.Rb7 a5 33.Qe2 Kf7 34.Qe6 Qe6= 35.de6 Ke6 36.Ra7 Rc8 37.Ra6 Kf7 38.Ra5 Rc4 39.Ra8 Rc3 40.Kh4 e5 41.fe5 fe5 42.Kg5 Rg3 43.Kf5 Rg2 44.Ke5 Rf2 45.Ra4 g3 46.Rg4 g2 47.a4 Ke7 48.Rg7 Kf8 49.Rg3 Ke7 50.Kd5 Ra2 51.Ke5 Ra4 52.Rg7 Kf8 53.Rg2 Ra5 54.Kf6 Ra6 55.Ke5 Ra5 56.Kd6 Ra6 57.Kc7 Ra7 58.Kb6 Re7 59.Kc6 Kf7 60.Kd5 Rd7 61.Ke5 Re7 62.Kf5 Re5?? 63.Ke5+– (63.Ke5 Ke7 64.Rg7 Kf8 65.Rd7 Ke8 66.Ke6 Kf8 67.Kf6 Kg8 68.Rd8 Kh7 69.Re8 Kh6 70.Rh8) 1–0. carocan (1690) – tryskac, kurnik, 2011.

5.Be2 Bd7 6.0-0 0-0 7.d3 a6 8.Nbd2 b5 9.a3 Bc6 10.c4 bc4 11.Nc4 Bb7 12.Qc2 Nbd7 13.Rfd1 Rc8 14.Rac1 Qe8 15.Na5 Ba8 16.Nc6 Nb6 17.d4 e6 (17...Bb7 18.Nd2+/-) 18.a4 Kh8 19.b5 ab5 20.ab5 Nbd5 21.e4 Ne7 22.d5 Nc6 23.bc6 Rb8 24.Rb1 ed5 25.ed5 Ne4?? 26.Bg7+– Kg7 27.Rb8 Qb8 28.Rb1 Qe8+/- 29.Qb2 f6 30.Bd3 Nc5 31.Bf1 Kg8 32.Re1 Qf7 33.Qa2?? h6?? 34.Nd4 Kh7 35.Ne6 Re8 36.h3?? h5?? 37.Bc4 Ne6 38.Re6?? Re6+= 39.de6 Qe7?? 40.Qa8+– Kh6 41.Qc8 f5 42.Qd7 Qf6 43.e7 Qa1 44.Bf1 Qe5 45.e8Q Qc5 46.Qh8 Kg5 47.Qe7 Kf4 48.Qh6 g5 49.Qhg5# 1–0. ejdrzej (1665) – lapaimikura, kurnik, 2012.

5.Be2 e6 6.0-0 b6 7.d3 Bb7 8.Nbd2 c5 9.bc5 dc5 10.Rb1 Nbd7 11.h3 0-0 12.a3 Qc7 13.Nc4 Nd5 14.Bg7 Kg7 15.Qc1 Ne7 16.Qb2 Kg8 17.Nfe5 Ne5 18.Qe5 Qd7 19.Qd6 Rfd8 20.Qf4 Nd5 21.Qg3 Nc3 22.Rbe1 Ne2 23.Re2 Ba6 24.Ne5 Qd6 25.f4 b5 26.h4 h5 27.Qg5 Qd5 28.Ng6 fg6 29.Qg6 Kf8 30.Qf6 Ke8 31.e4 Qd4 32.Rff2 Qf6 0–1. Phomopsis (1740) – goramaeztu (1715), lichess.org, 2020.

5.Nf3 Nbd7 6.Be2 e5 7.d3 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d3 e5 7.Be2 Nbd7).

5.g3 e5=+ 6.Bg2 Qe7 (6...e4 7.Nd4=+) 7.0-0 Nbd7 8.d3 0-0 (8...d5 9.a3=) 9.c4 Re8 10.Nc3 Nf8 (10...Nb6 11.Qc2=) 11.Nd2 c6 12.b5 Bd7 13.Nb3 (13.Ba3 Ne6=) 13...Rec8 (13...Ne6 14.Rb1=) 14.a4 Be6 (14...a6 15.b6=) 15.Ba3 (15.f4 ef4 16.ef4 Bg4+=) 15...Qd7 16.Re1 Bh3 (16...Bg4 17.Qc2=) 17.Bh1 (17.bc6 bc6 18.Ne4 Bg2 19.Kg2 Ne4 20.de4=) 17...Ne6= 18.e4 Nh5 (18...a6 19.Bg2 Bg2 20.Kg2=+) 19.Ra2 Rf8 (19...a6 20.b6=) 20.Bc1 Bh8 21.Bh6 Rfe8 22.Rd2 Bf6 23.Be3 Nd4 24.f3 Ng7 25.Rf2 h5 26.Bd4 ed4= 27.Ne2 c5 28.Nf4 Be6 29.Ne6 Ne6 30.f4 Ng7 31.e5+/- Qe7 32.Na5 Nf5 33.Nb7 (33.Nb7 de5 34.fe5 Be5 35.Bc6+–; 33.Bb7!? Rad8+–) 1–0. Nimzowitsch,Aaron – Monticelli,Mario, San Remo, 1930. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6)

5.g4 0-0 6.g5 Nfd7 7.Bg7 Kg7 8.h4 Ne5 (8...e5 9.Nc3=) 9.c4 (9.Ne5!? de5 10.h5+=) 9...Bg4 10.Be2 Bf3 11.Bf3 Nf3 (11...a5 12.b5 c6 13.Be2=) 12.Qf3+= c6 (12...Nc6 13.b5 Ne5 14.Qb7 Nc4 15.Qc6+=) 13.Nc3 White prepares the advance h5 (13.h5 e5+=) 13...a5 14.b5 e6 15.0-0-0 (15.Ne4 cb5 16.cb5 d5+=) 15...d5 16.h5 d4 (16...dc4!? 17.hg6 fg6+/- (17...hg6 18.Rh7 Kh7 19.Qh3 Kg8 20.Rh1 Qd2 21.Kd2 Rd8 22.Kc1 Rd1 23.Kd1 Kf8 24.Qh8 Ke7 25.Qf6 Kd6 26.Ne4 Kc7 27.Qe5 Kb6 28.Qd4 Kb5 29.Qb2 Ka6 30.Nc5 Ka7 31.Qb7)) 17.Ne4 Qe7 18.hg6 hg6?? (better 18...fg6 19.Qf6! Qf6 20.Nf6 h5+=) 19.Qf6 (19.Qh3 Qa3 20.Kb1 Qb4 21.Ka1 Qb2 22.Kb2 Rc8 23.Qh6 Kg8 24.Nf6) 19...Qf6+- 20.Nf6 (20.gf6 Kg8 21.Rh2+-) 20...Rh8?? (better 20...Rd8+/-) 21.Rh8+- Kh8 22.Rh1 Kg7 23.Rh7 (better 23.c5!? Nd7 24.Rh7 Kf8 25.Nd7 Ke7+-) 23...Kf8 24.Rh8 Ke7 25.c5 cb5 (25...Na6 26.Ra8 Nc5 27.ed4 Nd3 28.Kc2 Ne1 29.Kd1 Nf3 30.bc6 bc6 31.Ng8 Kd6 32.Ra5 e5 33.de5 Ne5+-) 26.Re8 1-0. dale70 (2050) - AdrienStrygixAB (2085), Rated Blitz game, lichess.org, 2014.

5.Ng5 0-0 6.Be2=+.

5.Ng5 Nbd7 6.Qf3 (6.Bc4!? e6 7.Be6+=) 6...0-0 7.Bc4 (7.d4 h6 8.Ne4 Ne4 9.Qe4 e5=+) 7...a6 (7...Nb6 8.Bb3=+) 8.Nf7 (8.Bf7 Rf7 9.Ne6–+) 8...Rf7-/+ 9.Bf7 Kf7 10.Bf6 (10.0-0 Kg8-/+) 10...Nf6 11.Nc3 (11.d4 d5-/+) 11...a5 (better is 11...d5-/+) 12.Nd5? (better is 12.Rb1!?-/+) 12...Bg4–+ 13.Qf4 ab4 (better is 13...g5 14.Qg5 Nd5 15.Qg4 Ba1 16.Qh5 Ke6 17.Qh3 Kf7 18.Qh5 Ke6 19.Qh3 Kf7 20.Qh5–+) 14.Qc4?? (better is 14.Nf6 Bf6 15.c3-/+) 14...Be6–+ 15.f4 c6 16.f5 Bd5 17.Qf4 Bg2 18.Rg1 Bd5 19.0-0-0 Ra2 20.Kb1 Qa5 21.fg6 Ke8 22.Qd4 Nh5 23.gh7 Ra1 24.Kb2 Bd4 25.ed4 Qa2 (25...Qa3) 0–1. manofsteel5 – EaglesWing61, caissa.com, 2005.

5.h3 0-0 6.Be2=.

5.h3 Nbd7 6.d4 (6.Be2 e5=) 6...0-0 7.Bd3 Re8 (7...c5 8.bc5 dc5 9.0-0=) 8.0-0 e5 9.de5 Ne5 (9...de5 10.e4=) 10.Ne5 de5 11.c4 (11.e4 Qe7 12.a3 c5=) 11...Be6 (11...Qe7 12.Qa4=+) 12.Nc3 Qd7 13.Ne4 (13.Qe2 Qe7 14.b5 a6=) 13...Ne4 14.Be4 Bc4?? (better is 14...Qe7 15.Qb3 Rab8=) 15.Qd7+– Bf1 16.Kf1 Rad8 17.Qc7 b6 18.Rc1 f5 19.Bc6 Rf8 20.Be5 Be5 21.Qe5 Rc8 22.Bd5 Rf7 23.Rc8 1–0. gtate (2015) – nicoleskywalker (2035), net–chess.com, 2005.

5.a3 Bg4

6.Be2 0-0 7.c4 Nc6 8.0-0 e5 9.h3 Be6 10.d3 Qd7 11.Nbd2 h6 12.e4 Bh3 (better is 12...a6!?=) 13.gh3+/- Qh3 14.Nh2 h5 15.f4 Bh6 16.Rf3 Qd7? (16...Qh4 17.b5 Bf4 18.Rf4 Qf4 19.bc6 bc6 20.Kh1+/-) 17.f5 (17.fe5!? Ne5 18.Rf6 Qe7+–) 17...Nh7 18.Rg3 Qe7? (18...Bf4 19.Rg2 Ng5 20.Ndf3 Be3 21.Kf1+–) 19.Bh5 Qh4 20.Qg4?? Qg4+= 21.Rg4 Bd2 22.fg6 fg6 23.Bg6 Ng5 24.Bf5 Ne7? 25.Nf3+– Be3 26.Kg2?? Nf5=+ 27.ef5 Rf5 28.Rf1 Raf8 29.Ng5 Rg5 30.Rf8 Kf8 31.Rg5 Bg5 32.Kf3 Ke7 33.Ke4 Ke6 34.a4 c6 35.b5 d5 36.Kf3 Bd2 37.Ke2 Bf4 38.Kf3 Kf5 39.Bc3 e4 40.Ke2 Kg4 41.Bd4 a6 42.bc6 bc6 43.cd5 cd5 44.Be3 Kf5 45.Bd4 Be5 46.Be3 d4 47.de4 Ke4 48.Bd2 Bd6 49.Ba5 Ba3 50.Kd2 Bb2 51.Bb4 Ba1 52.Ba5 Bb2 53.Bb4 Kd5 54.Ba5? Kc4–+ 55.Bb6 Kb3 56.a5 Kc4 57.Bc7 Bc3 58.Kc2 d3 59.Kc1 Kb5 60.Kd1 Ba5 61.Ba5 Ka5 62.Kd2 Kb4 (62...Kb4 63.Kd3 Kb3–+) 0–1. Fournier,Frederic (1965) – helsakka (2030), Active (5/0), 2004.

6.Be2 e5 7.d3 Bf3 8.Bf3 (< 8.gf3 Nbd7=+) 8...0-0?? (better is 8...c6+=) 9.Bb7+– Nbd7 10.Ba8 Qa8 11.0-0 Ng4 (11...Rb8 12.c4+–) 12.h3 (better is 12.Qg4 Nb6 13.c4+–) 12...Ngf6 13.Nd2 g5 14.Nf3 g4 15.hg4 Ng4 16.Nh2 Nh2 17.Kh2 Nf6 18.e4 Nh5 (18...Qc8+–) 19.Qh5 1–0. Fournier,Frederic (1755) – isracadiz, Active, 2007.

5.b5 0-0

6.a4 a6 7.c4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 cb5 11.Nb5 Bg4 12.Be2 Nc6 13.h3 Bf3 14.Bf3 Ne5 15.Bb7 Nc4 16.Bf3 Ne5 17.Be5 de5 18.Nc3 e4 19.Ne4 Ne4 20.Be4 Qa5 21.0-0 Rd8 22.d4 e5 23.d5 f5 24.Bb1 Rd5 25.Qb3 Kf8?? 26.Ba2+– Rd2 27.Qf7 1–0. j1a9n55 – brazilianu, kurnik, 2011.

6.a4 a6 7.c4 c6 8.Na3 b6 9.Be2 c5 10.0-0 a5 11.d4 d5 (11...Bb7 12.Bd3+=) 12.Ne5 cd4 13.Bd4 dc4 (better is 13...Bb7!?+/-) 14.Nac4+– (14.Bc4?! Bf5+/-) 14...Nfd7 15.Nd7 Bd4?? (15...Nd7 16.Rc1 Rb8 17.Bg7 Kg7 18.Qd4 f6 19.Bf3+–) 16.Qd4 (better is 16.Nf8 Kf8 17.Rc1+–) 16...Nd7 17.Rfd1 Ra7 18.Nb6?? Qb6-/+ 19.Qb6 Nb6 20.Bf3 Be6 21.Bc6 Bb3 22.Rd4 e5 23.Re4 f6 24.f4 Bc2 25.Re5 fe5 26.fe5 Ba4 27.e6 Re7 28.Bd7 Nd7 29.ed7 Bb5 30.Ra5 Rf1# 0–1. ariank – popeti, kurnik, 2012.

6.a4 c6 7.c4 cb5 8.ab5 Nbd7 9.d4 Nb6 10.Nbd2 Be6 11.Be2 Qc7 12.Rc1 a6 13.0-0 ab5 14.cb5 Qd7 15.Ra1 Ra1 16.Qa1 Ra8 17.Qc1 Nfd5 18.Re1 h6 19.Bf1 Kh7 20.e4 Nc7 21.Nc4 Nc4 22.Bc4 Nb5 23.Bb5?? Qb5-/+ 24.d5?? Bb2–+ 25.Qb1 Bd7 26.e5 Ra1 27.Qe4 Re1 28.Qe1 Qd5 29.ed6 Qd6 30.h4 Bf6 31.h5 g5 32.Qe4 Kg7 33.Qb7 Bc6 34.Qb3 Bf3 35.Qf3 Qf4 36.Qd1 Qf5 37.g4 Qe5 38.Kg2 Qe4 39.f3 Qd4 40.Qb3 Qb2 41.Qb2 Bb2 42.Kg3 Kf6 43.f4 gf4 44.Kf4 e5 45.Ke4 Bd4 0–1. typ48 – psci, kurnik, 2012.

6.a4 Nbd7 7.d4 c5 8.Be2 a6 9.c4 ab5 10.cb5 Ne4 11.0-0 Kh8 12.Nc3 Nc3 13.Bc3 Nb6 14.a5 Nd5 15.Qb3 Be6 16.Qb2 Nc3 17.Qc3 Bd5 18.b6 cd4 19.ed4 Rc8 20.Qb4 Qd7 21.Rfc1 Rc1 22.Rc1 Rc8 23.Rc8 Qc8 24.h3 h6 25.Qb5 Bc6 26.Qb3 Qd7 27.Qf7 Kh7 28.Nh4 Be4 29.Bf3 Bc2 30.d5 g5 31.Qe6 Qe6 32.de6 gh4 33.Bb7 Bd4 34.Bd5 Bd3 35.b7 Ba7 36.Kh1 Kg6 37.g4 Kf6 38.f4 Kg7 39.Kg2 Kf8 40.Kf3 Ke8 41.f5 Kd8 42.Kf4 Bb5 43.g5 hg5 44.Kg5 Kc7 45.Kh4 Bd4 46.Kg5 Be8 47.h4 Bf6 48.Kg4 Bb5 49.h5 Ba6 50.h6 Bb7 51.Bb7 Kb7 52.Kh5 d5 53.Kg4 d4 54.Kf3 Ka6 55.Ke4 Ka5 56.h7 Kb6 57.Kd3 Kc5 58.Kd2 Kd5 59.Kd3 Ke5 60.Ke2 Kf5 61.Kd3 Ke6 62.Kc4 Kf5 63.Kd5 Kf4 64.Kc4 Ke3 65.Kd5 d3 66.Ke6 d2 67.Kf7 d1Q 68.Ke8 Qh1 0–1. popovicigelu (1615) – mariaano, kurnik, 2012.

6.a4 e5 7.d3 a6=+ 8.c4 Nbd7 9.Nbd2 Nc5 10.Be2 Bf5 11.Nb3 e4 12.Nc5 ef3-/+ 13.Bf3 dc5 14.Bb7 Rb8 15.ba6 Bd3–+ 16.Qb3 Be4 17.0-0 Qd6 18.Qb5 Ng4 19.g3 Bb2 20.Qb2 Ne5 21.f4? Nf3! 22.Kf2 Qa6!! (23.Be4 Rb2 24.Kf3 Qc4–+) 0–1. Genne,Rene – Maeser,Fabian, Lenk op, 1990.

5.Bb5 c6

6.Bc4 d5 7.Bb3 0-0=+ 8.0-0 Nbd7 9.c4 d4 10.Bd4+/- Qc7 11.d3 e5 12.Bc3 Ne8 13.Nbd2 Kh8 14.Ng5 f6? 15.Ne6+– (15...Qd6 16.Nf8 Nf8 17.d4+–) 1–0. Wall,Bill – Guest1121, Internet, 2004.

6.Be2 0-0 7.0-0 Qc7 8.c4 (8.d4 Qb6 9.a3 a5=) 8...e5 (8...c5 9.bc5 dc5 10.Nc3=) 9.d4 ed4 (9...Re8 10.Nc3=) 10.Qd4+= Nbd7 (10...Re8 11.Rd1+=) 11.Rd1 c5 12.Qh4 (12.Qd6 Qd6 13.Rd6 cb4 14.Nbd2+/-) 12...Ne5? (better is 12...cb4!? 13.a3 b3+=) 13.bc5+– Qc5 (13...Rd8 14.Nc3 Rd7 15.cd6 Nf3 16.Bf3 Rd6 17.Nb5 Rd1 18.Rd1+–) 14.Ne5 de5 15.Ba3 Qc6 16.Bf8 Kf8 17.Rd8 Ke7 18.Rg8 b6?? 19.Nc3 Bb7 20.Nd5 Ke6 21.Rg7 Nd5 22.cd5 Qd5 23.Bg4 Kd6 24.Qf6 Kc5 25.Qe7 (25.Qe7 Kc4 26.Be2 Qd3 27.Rc1 Kb5 28.Bd3 Ka4 29.Rc3 Bg2 30.Qa3) 1–0. pcmvr (2110) – bobbs (2180), net–chess.com, 2006.

5.c4 0-0

6.d4 a5 7.b5 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 g6 5.d4 Bg7 6.Nf3 0-0 7.c4).

6.Be2 e5 7.0-0 Nbd7 8.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0-0).

5.c4 a5

6.a3 ab4 7.ab4 Ra1 8.Ba1 0-0 9.d4 Bg4 10.Be2 Nbd7 11.0-0 c6 12.h3 Bf3 13.Bf3 Qc7 14.Nd2 e5 15.de5 de5 16.Qc2 Ra8 17.Bc3 Nb6 18.Be2 Na4 19.Ra1 Nb6 20.Ra8 Na8 21.Qb2 Nd7 22.Nf3 f6 23.c5 b6?? 24.Qa2+– Kh8 25.Qa8 Bf8 26.cb6 Qb6 27.Qe8 Qc7 28.Qf7 Qd8 29.Bc4 Qe7 30.Qg8# 1–0. polynesia46 (1755) – fagus54, kurnik, 2011.

6.b5 Nbd7 7.d4 0-0 8.Nbd2 Ne8 9.Be2 e5 10.de5 de5 11.Qc2 Qe7 12.a4 b6 13.Ba3 Nc5 14.Rd1 f5 15.0-0 Be6 16.h4 e4 17.Ng5 h6 18.Ne6 Qe6 19.Nb3 Nb3 20.Qb3 Kh7 21.Bf8 Bf8 22.Rd2 Nf6 23.Rfd1 Bd6 24.g3 g5 25.hg5 hg5 26.Qc2 Kg6 27.Rd6 cd6 28.Qd2 Rd8 29.Kg2 d5 30.cd5 Rd5 31.Qa2 Rd6 32.Qe6 Re6 33.Bc4 Re7 34.Rd6 Rc7 35.Bb3 Rc3 36.Be6 f4 37.gf4 gf4 38.Rb6 fe3 39.fe3 Re3 40.Kf2 Ra3 41.Bd5 Kf5 42.Bb7 Ra4 43.Ra6 Ng4 44.Ke2 Ra2 0–1. barborski – topair (1740), kurnik, 2012.

5.c4 a6

6.a4 h6 7.b5 a5 8.Be2 Nbd7 9.0-0 b6 10.Nc3 Bb7 11.h3 0-0 12.d4 g5 13.d5 Nc5 14.Nh2 Nh7 15.Qc2 f5 16.Bd3 Nd3 17.Qd3 Rf7 18.f4 Qf8 19.Rae1 Re8 20.Qc2 e5 21.fg5 hg5 22.Ne2 e4 23.Ng3 Bc8 24.Bg7 Kg7 25.Rf2 Kg8 26.Ref1 Re5 27.Ng4 Ree7 28.Nh5 fg4 29.Rf7 Rf7 30.Rf7 Qf7 31.hg4 Bg4 32.Ng3 Nf6 33.Ne4 Ne4 34.Qe4 Bf5 35.Qf3 Kg7 36.e4 Bg6 37.Qf7 Bf7 38.Kf2 Kg6 0–1. Abdullaevich (1630) – Sofaraway (1630), lichess.org, 2018.

6.Nc3 Bf5 7.d4 Ne4 8.Bd3 Nc3 9.Bc3 Bd3 10.Qd3 0-0 11.0-0 Nd7 12.Rfd1 Nf6 13.e4 b6 14.h3 Nh5 15.Qe3 f5 16.ef5+– gf5 17.Ng5 Qd7 18.Ne6 Rf6 19.d5 Rg6 20.Bg7 Ng7 21.Nf4 Rf6 22.Re1 Re8 23.Qc3 c6 24.dc6 Qc6 25.Re7! Re7 26.Qf6 Rf7 27.Qd4 Re7 28.Nd5 Rb7? 29.Re1 b5 30.Re7 Ne8 31.Qh4 Ng7 32.Qf6 Ne8 33.Qf7 (33.Qf7 Kh8 34.Qh7) 1–0. pierre – dorin gipsi 66, internet, 2011.

5.c4 b6

6.d4 Bb7 7.Nbd2 Nbd7 8.Be2 c5 9.dc5 bc5 10.b5 a6 11.a4 ab5 12.cb5 0-0 13.Qc2 e5 14.0-0 Qe7 15.a5 c4 16.Bc4 d5 17.Be2 e4 18.Nd4 Ne5 19.a6 Rac8 20.Qb3 Ba8 21.b6 Nc4 22.Nc4 dc4 23.Bc4 Ng4 24.b7 Rb8 25.h3 Ne5 26.Bd5 Nd3 27.Ba3 Qg5 28.Bf8 Bf8 29.ba8Q Ra8 30.Ba8 Ne5 31.Be4 Kg7 32.a7 h5 33.a8Q Be7 34.Ra7 Bf6 35.Qe8 1–0. barborski – jupiduch, kurnik, 2012.

6.d4 Bb7 7.Be2 0-0 8.Nbd2 c5 9.dc5 dc5 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Nbd7 14.0-0 e6 15.Qc2 Nh5 16.Bg7 Ng7 17.Ne4 Nf6 18.Bd3 Ne4 19.Be4 Be4 20.Qe4 Qf6 21.Ne5 Qg5 22.f4 Qh4 23.g3 Qh5 24.Nd7 f5 25.Qe5 Ne8 26.Nf8 Kf8 27.Qe6 Qe2 28.Rf2 Qe1 29.Kg2 Qc3 30.Ra2 Qb3 31.Ra8 Qc2 32.Kh3 Qe4 33.Qe4 fe4 34.Kg4 Kf7 35.Re8 Ke8 36.f5 gf5 37.Kf5 Kf7 38.Ke4 Ke6 39.g4 h6 40.h4 Kf6 41.Kd5 Kg6 42.Kc6 h5 43.g5 Kf5 44.Kb6 Ke4 45.g6 Ke3 46.g7 Kf4 47.g8Q Ke4 48.Kc5 Kd3 49.Qd5 Ke3 50.b6 Kf4 51.Kd4 Kg4 52.Ke4 Kh4 53.Qg8 Kh3 54.Kf3 h4 55.Qg2 1–0. barborski – mocau, kurnik, 2012.

6.Be2 Bb7 7.0-0 Nbd7 8.d4 a6 9.a4 0-0 10.Nbd2 c5 11.b5 ab5 12.ab5 cd4 13.Nd4 Nc5 14.Bf3 Ra1 15.Ba1 Bf3 16.N2f3 Nfe4 17.Nc6 Qc7 18.Bg7 Kg7 19.Qd4 Nf6 20.h3 e5 21.Qb2 Re8 22.Rd1 Re6 23.Ng5 Re8 24.Qd2 Nce4 25.Ne4 Ne4 26.Qd5 f5 27.f3 Nc3 28.Qd6 Qd6 29.Rd6 e4 30.f4 h5? 31.Kf2 Ra8 32.Rd2?? Ra4?? 33.Ne5 Kh6? 34.Rd6 Rc4 35.Nc4 Nb5 36.Rb6 Nc3 37.Ne5 Nd5 38.Rg6 Kh7 39.Rg5 Kh6 40.Rf5 Ne3 41.Ke3 h4 42.Ke4 Kg7 43.Rh5 Kf6 44.Rh4 Ke7+– 45.g4 (45.g4 Kd8 46.f5 Kc7 47.g5 Kb7 48.f6 Ka6 49.f7 Kb6 50.Rh6 Kc5 51.f8Q Kb5 52.Nd3 Kc4 53.Qb4) 1–0. nizinna – sfentona, kurnik, 2011.

5.c4 c5

6.b5 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 0-0 10.d4 (10.Bd3 Nbd7=) 10...Qa5 (10...cd4!? 11.ed4 Nbd7=+) 11.Bc3= Qa2 (better 11...Qc7=) 12.Nfd2 (12.Bd3 cd4 13.ed4 d5=) 12...Qa7 (12...Bf5!?-/+) 13.Bd3=+ cd4 14.ed4 Qb6 (14...Nbd7 15.0-0=+) 15.0-0= Bg4 (15...Nh5 16.Nf3=) 16.Qb3 Nbd7 17.Na3 (17.h3 Bf5 18.Bf5 gf5=) 17...Qd8 (better 17...Nh5!? 18.h3 Be6=+) 18.Nc2 e6 (18...Nh5 19.f4 e5 20.fe5 de5 21.Bb4 ed4 22.h3 Bh3 23.Be2=+ (23.gh3? Qg5 24.Kh1 Ng3 25.Kh2 Be5-+)) 19.Ne3 (19.Bb4 Nb6+/-) 19...Bh5 (19...e5 20.de5 Ne5 21.Ng4 Nfg4 22.Bb4+=) 20.Bb4 White intends c5 (20.h3 g5+/-) 20...Qe7? (better 20...e5 21.de5 Ne5+/-) 21.Qa3+- Ne8 22.c5 (22.g4 Bg4 23.Ng4 f5+/-) 22...dc5 (better 22...Bd4!? 23.cd6 Qg5+/-) 23.dc5+- Nc5?? (better 23...Qd8 24.g4 Ne5+-) 24.Bc5 Qd8 25.Bf8 Bf8 26.Qb3 Nd6 (26...Nf6 27.Ne4+-) 27.Ne4 Nf5 28.Ng3 (28.h3 Bg7+-) 28...Bg4 (28...Ng3 29.hg3 Bc5+-) 29.Ng4 1-0. Lance5500 (2655) - KonstA_78 (1690), lichess.org, 2018.

6.b5 b6 7.Be2 0-0 8.Nc3 a5 9.a4 e6 10.0-0 Re8 11.d3 Bb7 12.Re1 Nbd7 13.Rc1 e5 14.e4 Bh6 15.Rc2 Bf4 16.g3 Bh6 17.Bf1 Bc8 18.Bg2 Nf8 19.Bc1 Bg7 20.Bg5 Bg4 21.Qd2 Qd7 22.Bh6 Bh3 23.Bg7 Kg7 24.Ng5 Bg2 25.Kg2 Ne6 26.Ne6 Qe6 27.f4 Qg4 28.Qe2 Qh5 29.Qh5 Nh5 30.Rf1 Nf6 31.Rcf2 Rad8? 32.f5?? Rd7?? 33.fg6+– fg6 34.Rf6 Kh6 35.h3 1–0. Fournier,Frederic – Vinsot,Serge, Match Active, 1999.

6.b5 b6 7.Be2 Bb7 8.0-0 Nbd7 9.d3 0-0 10.Nbd2 e6 11.Qc2 d5 12.a4 e5 (better is 12...a6!?=) 13.Ne5+/- dc4 14.dc4 Ne5 15.Be5 Qe7 16.Bb2 Rad8 17.Bf3 Bf3 18.Nf3 Ne4 19.Bg7 Kg7 20.Rad1 Rd7?? (better is 20...Qe6+/-) 21.Rd7+– Qd7 22.Rd1 (better is 22.Qe4 Rd8 23.a5+–) 22...Qe7 23.Qb2 Kg8 24.Rd5 Nf6 25.Rd1 Ne4 26.Qc2 Nd6?? (26...Kg7 27.Rd5 Rd8+/-) 27.h3 Qe6 28.Rc1 Ne4 29.Rd1 Nd6 30.Rc1 Ne4 31.Nd2 Nd2 32.Qd2 Qe7 33.Rd1 Kg7 34.Qd7 Qd7 35.Rd7 Ra8 36.Kf1 Kf8 37.Ke2 Ke8 38.Rb7 h5 39.h4 f5? 40.Rg7 Rd8 41.Rg6 (41.Rg6 Kf7 42.Rh6+–) 1–0. Fournier,Frederic (1810) – telpago1, Active, 2011.

6.b5 b6 7.Be2 Bb7 8.0-0 Nbd7 9.d4 e6 10.Nc3 Rc8 11.Qa4 Qc7 12.d5 (12.Qa7?? Ra8 13.Qa8 Ba8–+) 12...e5 (12...0-0 13.de6 fe6 14.Rad1+= (14.Qa7 Ra8 15.Qa8 Ra8–+)) 13.h3 (13.Qa7?? Ra8 14.Qa8 Ba8–+) 13...h6 (13...0-0 14.Nd2+= (14.Qa7 Ra8 15.Qa8 Ra8–+)) 14.Qc2 (14.Qa7?? Ra8 15.Qa8 Ba8–+) 14...Nh7 (14...0-0 15.Nd2+/-) 15.a4 Qd8 16.a5 f5 17.ab6 ab6 18.Ra7 Rb8 19.e4 0-0 20.h4 (20.Rfa1 f4+–) 20...f4+/- 21.h5 gh5 22.Rfa1 Bf6 23.Nh2 Qe8 24.Qd1 Kh8 (24...h4+–) 25.Bh5 Qe7 26.Bg4 Rg8 27.Be6 Rg7 28.Qh5 Bg5 29.Nf3 Ndf8 30.Bf5 (30.Ng5?! Qg5 31.Qg5 Ng5+/-) 30...Nf6 31.Qh2 Ng8 (31...h5 32.Kh1+–) 32.Na4 (32.Ng5 Qg5 33.Na4 Ng6 34.Nb6 Nh4+/-) 32...Qc7 33.Ng5 Rg5 34.Qf4 Kg7 (34...Ne7 35.Bh3+–) 35.Qh2 Ng6 (35...Nf6 36.f4 Rf5 37.ef5+–) 36.f4 Nf4 37.Qf4 Nf6 (37...Ne7 38.Be6 Rf8 39.Qh2+–) 38.Qf3 Rg8 (38...Rf8 39.Nc3 Kh8+–) 39.Bc1 1–0. pierred – anony, internet, 2015.

5.c4 c6

6.Nc3 0-0 7.Be2 Nbd7 8.0-0 e5 9.Qc2 Ne8 (9...Nb6 10.d3=) 10.d4+= f5 11.Rad1 e4 12.Nd2 Nc7 13.Nb3 Nf6 14.d5 cd5 15.cd5 b6 16.Nd4 Qe8 (better is 16...Qd7!?+=) 17.Ne4+/- Ne4 18.Qc7 Bd7 19.Rc1 Qf7 20.Ba6 Rfd8 (20...f4 21.ef4 Rae8 22.Qa7+–) 21.f3 Nf6 22.Nc6 Bc6? (22...Nd5 23.Nd8 Nc7 24.Nf7 Na6 25.Bg7 Kf7+–) 23.Qf7 (23.Rc6? Rd7 24.Rfc1 Bh6–+ (24...Rc7?! 25.Rc7 Nd7 26.Bg7 Kg7 27.Bb5-/+); 23.Qc6?! Re8+–) 23...Kf7 24.dc6 (24.Rc6?! Rd7+–) 24...Nd5 25.Bc4 Bb2 26.Bd5 Kf6 27.c7 Bc1 28.Rc1 Rdc8 (28...Rac8 29.cd8Q (29.cd8N?! Rc1 30.Kf2 Rc2 31.Kg3 Rc3+/-) 29...Rd8 30.Rc7+–) 29.Ba8 (29.Ba8 Ra8 30.c8Q Rc8 31.Rc8+–) 1–0. forsetinn (2005) – pomponiomela (1765), gameknot.com, 2013.

6.Be2 Qc7 7.0-0 Bg4 (7...0-0 8.Nc3=) 8.Nc3+= Nbd7 (8...0-0 9.d4+=) 9.h3 (9.d4 Nb6+=) 9...Bf3 10.Bf3 a6 (10...e6 11.d4+=) 11.d4 0-0 12.Qd3 Rad8 13.Rfc1 c5 14.Nd5 Nd5 15.cd5 b6 (better is 15...Rc8!?+=) 16.Qa6+/- Ra8 17.Qb5 (17.Qe2 Rfc8+/-) 17...Rfc8 (17...Qd8 18.a4+/-) 18.Bg4 (18.a4 Qd8+/-) 18...f5 19.Bf3 Qd8 (19...Qa7 20.Qe2+/-) 20.a4 Qe8 (20...cd4 21.ed4 Rc1 22.Rc1+– (22.Bc1 Bd4 23.Ra3 Qc8=+)) 21.Bc3 cb4 22.Bb4 Rc1 23.Rc1 Rc8 24.Rc6 Qd8 25.g4 Rb8 26.gf5 gf5 27.Qd3 Qf8 28.Rc7 Rd8 29.Bd1 Qf6 30.Bc2 Qg5 31.Kf1 Nf6 32.Qf5 Qf5 33.Bf5 Re8 34.Be6 Kh8 35.Rb7 Ne4 36.Rb6 Ra8 37.a5 h6 38.f4 Ng3 39.Kg2 Nh5 40.a6 Nf4 41.ef4 Bd4 42.Rc6 Ra7 43.Kf3 Kg7 44.Ke4 Bg1 45.Bc3 Kg6 46.Rc8 Kh5 47.Bg4 Kh4 48.Be1 (48...Bf2 49.Bf2) 1–0. orane – Sir, caissa.com, 2006.

6.Be2 Bg4 7.0-0 Nbd7 8.h3 Bf3 9.Bf3 0-0 10.d4 Qc7 11.Nc3 a5 12.b5 cb5 13.cb5 Rac8 14.Rc1 Qd8 15.Bb7+– Rb8 16.Bc6 Nb6 17.Qd3 d5 18.Ba3 Qc7 19.Nd5! Nbd5 20.Bd5 Qb6 21.Bc6 Qa7 22.Bc5 Qc7 23.Qa3 e6 24.Bd6 Qb6 25.Bb8 Rb8 26.Qe7 Nd5 27.Bd5 ed5 28.Rc7 Qf6 29.Qf6 Bf6 30.Rc5 Be7 31.Rd5 a4 32.Rc1 Rb7 33.Rc6 a3 34.b6 Bb4 35.Rb5 Bd2 36.Rc7 Rb8 37.b7 Kg7 38.Rc8 (38.Rc8 Rb7 39.Rb7+–) 1–0. pierre – darkwizard2400, internet, 2008.

6.d4 0-0

7.Nc3 Re8=.

7.Nbd2 Nbd7 8.Be2 Qc7 9.0-0 a6 10.Rc1 b6 11.Qb3 Bb7 12.Rfe1 e5 13.de5 Ne5 14.h3 c5 15.b5 ab5 16.cb5 Ra5 17.a4 Rfa8 18.Ra1 Nfd7 19.Bc3 R5a7 20.Ng5 d5 21.f4 d4 22.fe5 dc3 23.Nf7 h6 24.Nd6 Kh7 25.Qc3 Be5 0–1. barborski – jardaz, kurnik, 2012.

7.Nbd2 Nbd7 8.Be2 Re8 9.0-0 Qc7 10.Rc1 e5 11.de5 Ne5 12.Qc2 Bf5 13.e4 Bg4 14.h3 Bf3 15.Nf3 Re7 16.Rfe1 Rae8 17.Ne5 de5 18.c5 Rd8 19.Bc4 Red7 20.Qc3 Nh5 21.g3 Rd2 22.Rc2 Rd1 23.Rce2 Qc8 24.Kh2 Kf8 25.Qf3 f6 26.Be5 Ke7 27.Bd6 Ke8 28.e5 Re1 29.Re1 f5 30.g4 Rd6 31.ed6 Kf8 32.gh5 1–0. barborski – lucasmoura, kurnik, 2012.

7.Nbd2 Re8 8.Be2 Nbd7 9.0-0 Qc7 10.Rc1 e5 11.de5 Ne5 12.Qc2 Bf5 13.e4 Nf3 14.Bf3 Be6 15.Rfe1 Qe7 16.g3 Ng4 17.Bg7 Kg7 18.h3 Ne5 19.Bg2 Qg5 20.Qc3 f6 21.f4 Qh5 22.fe5 fe5 23.Kh2 g5 24.Rf1 g4 25.h4 Qg6 26.Rf4 Kh8 27.Rcf1 Kg8 28.Rf6 Qg7 29.c5 d5 30.ed5 cd5 31.Qe5 d4 32.Bd5 Bd5 33.Qd5 Kh8 34.Qd4 Rad8 35.Qc3 Kg8 36.Nc4 Re2 37.Kh1 b6 38.Nd6 bc5 39.bc5 Rb8 40.Qc4 1–0. barborski – lucasmoura (1605), kurnik, 2012.

7.Be2 Bf5 8.0-0 Re8 9.Nc3 a6 (9...Nbd7 10.Nh4 Be6 11.Qb3=) 10.Qb3 (10.Ng5 d5+/-) 10...Ne4 (better is 10...Nbd7!?+=) 11.Ne4+/- Be4 12.Nd2 Bf5 13.e4 Bc8 14.f4 Nd7 15.e5 d5 (15...de5!? 16.de5 Ne5=) 16.cd5 cd5 17.Qd5 Qb6 (17...Nb6!? 18.Qa5 Nd5+/-) 18.Qb3 Nf8 19.Kh1 Bf5 20.Nc4 Qc7 (20...Qb5 21.Qe3+–) 21.Rac1 Qd8 22.Ne3 Be4 23.d5 Rc8 24.Bd3 Bd3 25.Qd3 Ne6?? 26.Rcd1 Nc7 27.f5 Nb5 28.a4 Na7 29.Bd4 Ra8 30.e6 Bd4 31.Qd4 fe6 32.fe6 Rf8 33.Nc4 Rc8 34.Ne5 b6 35.Nd7 Rf1+– 36.Rf1 Qc7 37.h3 1–0. ferminkatcho (1790) – m2405 (1740), kurnik, 2012.

5.c4 Nc6

6.b5 Na5 7.Bd3=.

6.b5= Nb8 7.Be2 0-0 8.d4 (8.Nc3 a6=) 8...Nbd7 (8...a6 9.Nc3=) 9.0-0 c6 (9...a6 10.ba6 b6 11.Nc3=) 10.a4+= c5 11.a5 (11.Nc3 cd4 12.ed4 Re8+=) 11...cd4 12.ed4 b6 (12...Re8 13.Nc3=) 13.Nbd2+– ba5 14.Bc3 Bb7 15.Re1 e6 16.Ba5 Qc8 17.Qb3 Ne4 (17...Re8!?+–) 18.Ne4+– Be4 19.Bb4 Qb8 (19...a6 20.Ng5 Bb7 21.Bd6+–) 20.Qa3 Bf3 (20...d5 21.Bf8 Qf8 22.Qf8 Kf8 23.cd5 ed5 24.Ra6+–) 21.Bd6 (21.Qf3?! Bd4 22.Ra6 Nc5=; 21.Bf3?! Bd4 22.Ba8 Qa8+–) 21...Qb7 (21...Be2 22.Bb8 Bc4+–) 22.Bf3 (22.gf3?! Bd4 23.Bf8 Rf8+–) 22...Qc8 (22...Qb6 23.c5 Qb5+–) 23.Ba8 Qa8 24.Qa7 Qc8 (24...Qd8 25.Bf8 Nf8 26.Red1+–) 25.Bf8 Bf8 (25...Kf8 26.Ra6 Qe8 27.Rd6+–) 26.c5 Nf6 27.b6 Nd5 28.b7 Qd8 29.b8Q Qf6 30.Qaa8 Qe7 (30...Qg7 31.Ra7 Nc3 32.Qf3 Nd5 33.Re6 Nf4 34.Qbf4 Be7 35.Rae7 h6 36.Qf7 Qf7 37.Rf7 h5 38.Re8) 31.Ra7 Nc7 (31...Kg7 32.Re7 Be7 33.Qg8 Kh6 34.Qf7 Bh4 35.Qaf8 Kh5 36.Qf3 Kg5 37.Re5) 32.Rc7 Qc7 (32...Kg7 33.Re6 Qe8 34.Qe8 Kh6 35.Qf8 Kg5 36.Qf3 h6 37.Rf7 Kh4 38.Qh6) 33.Qf8 1–0. Ddgs – Shatri, internet, 2019.

6.b5 Nb8 7.Be2 a6 8.0-0=.

6.b5 Nb8 7.Be2 Bg4 8.h3 Be6 (8...Bf5 9.0-0=) 9.Ng5 Bc8 10.0-0 Nbd7 (10...0-0 11.Nc3+=) 11.d4 b6 (11...0-0!?+=) 12.Bf3+/- Rb8 13.Bc6 (13.Qa4 h6 14.Ne4 Ne4 15.Be4 Bb7 16.Bb7 Rb7+/-) 13...Bb7 (13...h6 14.Nf3+/-) 14.Qa4 (14.Bb7 Rb7 15.Qf3 Rb8+/-) 14...0-0 (14...a5 15.ba6 Bc6 16.Qc6+/-) 15.Nd2 (15.Qa7 Bc6 16.bc6 Ra8=) 15...Nh5 (15...a5 16.e4+=) 16.g4 (16.Rab1 Bc6 17.bc6 h6+–) 16...Nhf6+= 17.Ngf3 Ne8 (17...h6 18.e4+=) 18.g5 (18.Rfb1 a5+=) 18...Bc6 19.bc6 a5?? (better is 19...Nc5 20.Qa3 Ne6=) 20.cd7+– Nf6 (20...b5 21.de8Q (21.de8B? ba4 22.Bb5 c6–+) 21...Qe8 22.Qa5 bc4 23.Rfb1+–) 21.gf6 Bf6 22.Qb5 Kg7 (22...e6 23.Rab1+–) 23.Ne4 (23.e4 Kh8+–) 23...h6 (23...e6 24.Nfd2+–) 24.d5 (better is 24.Nf6!? ef6 25.d5 Kh7+–) 24...Bb2 25.Qb2 f6 (25...Kg8 26.Qb5 e5 27.de6 fe6 28.Nd4+–) 26.Qb5 Rf7 (26...e5 27.de6 Qe7 28.Qd5+–) 27.Nd4 f5 (27...Qg8 28.Qc6 Kh8 29.Qc7+–) 28.Ne6 (28.Ne6 Kh7 29.Nd8 Rd8 30.Nc3+–) 1–0. DEFFM – Lookoutjoe, freechess.org, 2018.

6.b5 Ne5 7.Ne5+/- (< 7.Be5 de5 8.Ne5 Ng4=+) 7...de5 8.Be5 0-0 9.Be2 a6 10.Nc3 ab5 11.cb5 Nd5 12.Bg7 Nc3?? (better is 12...Kg7 13.Qb3 Nf6+/-) 13.Bc3+– (13.Bc3 Qd5 14.0-0+–; 13.dc3?! Kg7 14.Qd4 f6+/-) 1–0. Doda (2070) – Casa (1670), Freundschaftspartie, 5m + 0s, 2007.

5.c4 Bd7

6.d4 0-0=.

6.Be2 0-0 7.0-0 c5=.

6.Be2 0-0 7.b5 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d5 (10...Bf5 11.0-0=) 11.cd5 Nd5 12.Nc3 (12.Bg7 Kg7 13.Nc3 Bf5+=) 12...Nc3 (12...Nf6 13.0-0=) 13.Bc3+= Bc3 14.dc3 Be6 (14...c6 15.0-0+=) 15.0-0 c6 16.Nd4 Bd5 (16...Bd7 17.Qb1+=) 17.c4+/- Be4 18.f3 c5? (better is 18...Bf5!?+/-) 19.fe4+– cd4 20.ed4 Nd7 21.c5 (21.e5 Nb6+–) 21...e6 (21...e5 22.c6 bc6 23.bc6+–) 22.Qb3 (22.e5 Qc8+–) 22...h5 (22...e5 23.Qd5 ed4 24.Bg4+– (24.Qd4?! Qe7+/-)) 23.Qg3 White prepares the advance e5 23...Kh7 (23...h4 24.Qd6+–) 24.Bd3 (better is 24.Qd6 Kg7+–) 24...Qe7 (24...f5 25.Qd6+–) 25.e5 (25.Qc7 Qg5 26.Rf3 Nb8 27.Qb7 Qc1 28.Bf1 Kg8+–) 25...Ra8 (25...Kg7+–) 26.Qf3 Rf8 27.Qh5 (better is 27.Qb7!? Kg7+–) 27...Kg7 28.Qg4 (28.Qf3 Qh4 29.Qe3 f5+–) 28...Rh8 (28...Ne5 29.de5 Qc5 30.Kh1 Qe5 31.Qf3+–) 29.g3 (29.Qf3 Rh4 30.Be4 f5 31.ef6 Nf6 32.Bb7 Rd4+–) 29...Rh6 (29...Ra8 30.Qf4+–) 30.Qf3 Nf8 (30...Ne5 31.de5 Qc5 32.Kg2+–) 31.c6 (31.Qf6 Qf6 32.ef6 Kg8+–) 31...bc6 (31...Rh8 32.Qf6 Qf6 33.ef6 Kh6 34.c7+–) 32.bc6 (better is 32.Qf6 Qf6 33.ef6 Kh8 34.bc6 Nh7+–) 32...Qc7 (32...Rh8 33.Qf6 Qf6 34.ef6 Kh6 35.Ba6+–) 33.Qf6 Kg8 34.Be4 (34.Qf7 Qf7 35.Rf7 Kf7+–) 34...Qa7 (34...Rh8 35.d5 ed5 36.Bd5+–) 35.Qf2 (35.Qf7! Qf7 36.Rf7 Kf7+–) 35...Nh7 (35...Rh7 36.d5 Qb8 37.d6+–) 36.Qe3 (better is 36.Qf7! Qf7 37.Rf7 Kf7 38.c7+–) 36...Qc7 (36...Kg7+–) 37.Qh6 (37.Qh6 Qd8 38.d5+–) 1–0. GuestMTTR – GuestCBMG, freechess.org, 2018.

6.Be2 0-0 7.Nc3 (7.0-0 c5=) 7...a5 (7...e5 8.d4=) 8.b5+= c6 (8...e5 9.d4 Re8 10.de5 de5 11.e4+=) 9.0-0 cb5 (9...Bf5 10.d4+=) 10.cb5 b6 (10...Bg4 11.Rc1+=) 11.Rc1 e5 (11...d5 12.Na4 Bg4 13.Be5+/-) 12.Ba3+/- Be6 (12...Bg4 13.d4 e4 14.Nd2 Be2 15.Qe2+/-) 13.d4 e4 (13...Re8 14.de5 de5 15.Ne5+/-) 14.Ng5 (14.Nd2 Bf5+–) 14...h6 (better is 14...Bf5!?+/-) 15.Ne6 fe6 16.d5 (16.Qc2 Ra7+–) 16...ed5 17.Nd5 Ne8? (better is 17...Ra7+–) 18.Rc8!! Qg5 (18...Qc8 19.Ne7 Double attack (19.Ne7 Decoy)) 19.Nb6 Ra7 20.Rb8 1–0. Janek – Vassileos, internet free game, 2017.

5.c4 Nbd7

6.a4 a6 7.Be2 b6 8.0-0 Bb7 9.Nc3 0-0 10.d4 c5 11.b5 Ne8 12.d5 Nc7 13.Qc2 e6 14.e4 f5 15.de6 Ne6 16.ef5 Rf5 17.Nh4 Nd4 18.Qd2 Qh4 19.Nd5 Ne2 20.Qe2 Bd5 21.cd5 Bb2 22.Qb2 Ne5 23.ba6 Ra6 24.Qb5 Ra8 25.Qb6 Qc4 26.Qd6 Nd3 27.a5 Qd5 28.Qd5 Rd5 29.Rfd1 Nb4 30.Rdc1 c4 31.Rc4 Raa5 32.Rf1 Nd3 33.g3 Ne5 34.Rf4 Nd3 35.Rf3 Ne5 36.Rf4 Nf7 37.Kg2 Rf5 38.Re4 Rfe5 39.Re5 Re5 40.f4 Re2 41.Kf3 Rh2 42.Rf2 Rf2 43.Kf2 Kg7 44.g4 h6 45.Kf3 g5 46.fg5 Ng5 47.Kf4 Kg6 48.Ke5 Nf3 49.Kf4 Nh2 50.Kg3 Nf1 51.Kf2 Nd2 52.Ke2 Nc4 53.Kf3 Ne5 54.Kf4 Nf7 55.Kg3 Ng5 56.Kf4 Kf6 57.Kg3 Ke5 58.Kh4 Kf4 59.Kh5 Nf7 60.Kg6 Kg4 61.Kf7 h5 62.Ke6 h4 63.Kd5 h3 64.Ke6 h2 65.Kd6 h1Q 66.Ke5 Qf1 67.Ke4 Qe2 68.Kd5 Kf3 69.Kd4 Qe3 70.Kd5 Qe4 71.Kd6 Ke3 72.Kd7 Qd4 73.Ke6 Ke4 74.Kf7 Kf4 75.Ke6 Kg4 76.Kf7 Qf4 77.Ke6 Qf5 78.Kd6 Kg5 79.Kc6 Kf6 0–1. Abdullaevich (1605) – marcosgame, lichess.org, 2018.

6.Qc2 0-0 7.Bd3 e5 (7...a5 8.a3+=) 8.a3 (8.Nc3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Nb6+=) 8...Qe8 (8...Nb6!?+=) 9.Nc3= b6 10.Ng5 (10.0-0 Bb7 11.Be2 e4=) 10...Bb7 11.h4 (11.f3 Qe7=) 11...h5 (better is 11...Bg2!? 12.Rg1 Bc6-/+) 12.f3 (12.0-0 a5+=) 12...a6 (better is 12...Qe7+=) 13.b5 (13.0-0 Qe7+=) 13...a5 (13...Nc5 14.0-0+=) 14.a4 (14.Na4 Qe7=) 14...Nc5+= 15.Nce4 (15.Be2 Qe7+=) 15...Nd3 16.Qd3 Ne4 17.Ne4 Be4 (17...Qe7!?+=) 18.Qe4= Rc8 (18...f5 19.Qd5 Kh7 20.Kf2=) 19.g4 c6 (19...hg4 20.fg4 f5 21.gf5 gf5 22.Qd5 Kh7=) 20.Ba3 (better is 20.gh5 gh5 21.f4=) 20...Qe6?? (better is 20...f5 21.gf5 gf5+=) 21.bc6+– Rc7 (21...f5 22.Qd5 Qd5 23.cd5 fg4 24.fg4 hg4 25.Rg1+–) 22.gh5 (22.Rb1 Rfc8 23.Rb6 Qe8 24.Bd6 Rc6+–) 22...gh5 (better is 22...Rfc8 23.Rg1 Rc6+–) 23.Qd5?? (better is 23.Rb1 Rfc8 24.Rb6+–) 23...Qd5?? (better is 23...Rfc8 24.Rg1 Rc6=) 24.cd5+– Rd8 25.Rg1 (25.Rb1 Kf8+–) 25...Kf8 26.e4 (26.Rb1 Bf6+–) 26...Bf6 27.Rh1 Ke7 (27...Be7 28.Ke2+–) 28.Ke2 (28.Rb1 Rb8+–) 28...Rg8 (28...Rb8 29.Rab1 Bg7 30.d4 ed4 31.f4+–) 29.Rag1 Rg1 (29...Rb8+–) 30.Rg1 Rc8 31.d3 (31.Rb1 Bh4 32.Rb6 Bf6+–) 31...Rh8 (31...Rb8 32.d4! Re8 33.Rb1 ed4 34.Rb6+–) 32.Rh1 (32.Rb1 Rd8+–) 32...Bg7 (32...Rg8 33.Kd2 Bg7+–) 33.Rb1 Bf6 (33...Rb8+–) 34.Rb6 Rc8 35.Rb7 Kd8 (35...Ke8 36.Bd6 Bh4 37.Be5 Bd8+–) 36.Bd6 (36.Rf7 Be7 37.Bd6 Bd6 38.Rd7 Ke8 39.Rd6 Rc7+–) 36...Ke8 37.Rb8 Rb8 38.Bb8 Kd8 (38...Bh4 39.Be5 Kd8 40.d6+–) 39.Ba7 (39.d6 Kc8 40.Bc7+–) 39...Kc8 (39...Kc7 40.Bf2+–) 40.Bf2 (40.d6!? Bd8+–) 40...Be7 41.f4! ef4 (41...f6 42.Bb6+–) 42.Kf3 Bd6 (42...Kc7 43.Kf4 Bd6 44.e5+–) 43.d4 f6 (43...Kc7+–) 44.Bg1 Kd8 45.Bh2 Ke7 46.Bf4 Bf4 47.Kf4 Kd6 (47...Kd8 48.Kf5 Ke7 49.e5 fe5 50.de5 Kd8 51.d6 Kc8 52.Ke6 Kd8 53.c7 Kc8 54.Ke7 Kb7 55.Kd7 Kb6 56.c8R Kb7 57.Rc7 Kb6 58.Kc8 Ka6 59.Rc6 Ka7 60.d7 Ka8 61.Ra6) 48.Kf5 White intends e5 48...Ke7 49.e5 fe5 50.de5 Ke8 (50...Kf8 51.Ke6 Kg7 52.d6 Kh8 53.Kf6 Kh7 54.c7 Kh6 55.d7 Kh7 56.c8Q Kh6 57.Qh8) 51.Ke6 Kd8 (51...Kf8 52.d6 Kg7 53.c7 Kg6 54.c8Q Kg7 55.d7 Kh6 56.d8Q Kg6 57.Qb7 Kh6 58.Qf6) 52.d6 Kc8 53.c7 Kb7 54.Kd7 Kb6 55.c8R Kb7 56.Rc6 Ka8 (56...Kb8 57.Rb6 Ka8 58.Kc7 Ka7 59.d7 Ka8 60.Ra6) 57.Ke6 (57.Rb6 Ka7 58.Kc7 Ka8 59.Ra6) 57...Kb7 (57...Ka7 58.d7 Kb7 59.Kd5 Ka7 60.d8Q Kb7 61.Rb6 Ka7 62.Qb8) 58.Kd5 Ka7 (58...Kb8 59.Rc7 Ka8 60.d7 Kb8 61.d8Q) 59.d7 Kb7 (59...Kb8 60.d8Q Kb7 61.Rb6 Ka7 62.Qb8) 60.d8R (60.d8Q Ka7 61.Qb6 Ka8 62.Rc8) 60...Ka7 61.Rd7 Kb8 62.e6 Ka8 63.Rc8 1–0. Dos Santos,Clecio Franca – Silva,L Da Nobrega (1775), FENAJ sub, 2013.

6.Qc2 a5 7.a3+=.

6.Nc3 0-0+=.

6.d4 b6 7.Be2 Bb7 8.0-0 c5 9.a3+=.

6.d4 b6 7.Be2 Bb7 8.0-0 c5 9.b5 0-0 (9...cd4 10.ed4 0-0 11.Nc3=) 10.Nbd2 (10.d5 Qc7+=) 10...Nh5 (10...cd4 11.ed4 a6 12.ba6 Ba6 13.Re1=) 11.Ng5 (11.Nb3 cd4 12.Bd4 Nhf6=) 11...e5 (11...Nhf6!?=) 12.Nge4+/- f5? (better is 12...Qe7 13.Bh5 gh5 14.de5 de5 15.Qh5 a6+/-) 13.Nd6+– Bg2 (13...Qb8 14.Nb7 (14.Bh5?! Qd6 15.Bf3 Bf3 16.Nf3 e4+=) 14...Qb7 15.Bf3+–) 14.Kg2 Qg5 Black plans f4 (14...cd4 15.Bf3 Ndf6 16.Ba8 Qa8 17.Kg1+–) 15.Kh1 f4 (15...ed4 16.Bh5 Qh5 17.Qh5 gh5 18.ed4 Bd4 19.Rg1 Kh8 20.Bd4 cd4+–) 16.Nf3 (16.N2e4 Qe7 17.Bh5 gh5 18.de5 Be5 19.Be5 Ne5 20.ef4 Ng4 21.Qd5 Kh8+–) 16...Qe7 17.de5 fe3 18.Qd5 Kh8 19.fe3 1–0. Janek – Josts, internet, 2017.

6.d4 b6 7.Be2 Bb7 8.0-0 h5 9.Nbd2 h4 (9...c5 10.a3+=) 10.h3+/- g5 (better is 10...Kf8!?+/-) 11.Ng5+– Bh6 (11...c5 12.a3+–) 12.Ngf3 Rg8 (12...Bg7 13.Bd3+–) 13.Qc2 (13.Nh4 e5+–) 13...Nh5 (13...c5 14.dc5 dc5 15.bc5 Nc5 16.Bf6 ef6 17.Rad1+–) 14.Nh4 e5 (14...e6 15.Nhf3+– (15.Bh5?! Qh4 16.Bf3 Bf3 17.Nf3 Qh3+/-)) 15.Bf3 (worse is 15.Bh5 Qh4 16.Bg4 0-0-0+–) 15...e4 (15...Bf3 16.Ndf3 Bg7 17.Qf5+–) 16.Be4 (16.Bh5?! Qh4 17.Bg4 Nf6+–) 16...d5 17.Bh7 Rg7 (17...Rh8 18.Nhf3+–) 18.Nhf3 dc4 (18...Ndf6 19.Bd3+–) 19.Be4 Be4 (19...c6 20.b5 Rc8 21.Qc4+–) 20.Qe4 Kf8 21.Nc4 Ndf6 22.Qh4 (22.Qc6 Qd5 23.Nce5 Qc6 24.Nc6 Nd5+–) 22...Qd5 (22...Rh7 23.Nce5 Ng7 24.Qf6 Qf6 25.Nd7 Ke7 26.Nf6 Kf6 27.d5 Ke7 28.Rac1+–) 23.Nce5 Re8 (23...Ke8 24.g4 a5 25.ba5 Ra5 26.Kh2+–) 24.g4 Re5 (24...Re7 25.Kh2+–) 25.de5 (25.Ne5 Bg5 26.e4 Qd6-/+ (26...Bh4?? 27.ed5 Nf4 28.Bc1 N6d5 29.Bf4 Nf4 30.Kh2+–)) 25...Qf3 26.ef6 Rg5 27.Rad1 Kg8 28.Rd8 Kh7 29.Kh2 (better is 29.Rf8 c5+–) 29...Qe2 (29...a5+–) 30.gh5 Qf1 (30...Qf3 31.Rg1 Rd5 32.Rd5 Qd5+–) 31.Qe4 Rg6 32.hg6 fg6 33.Qe7 (33.Qe7 Bg7 34.Qg7) 1–0. Janek – Biton, internet free game, 2017.

6.d4 c6 7.Nc3 0-0 8.Be2 Qb6 9.Qb3 Qd8 10.0-0 h6 (10...a5 11.a3+=) 11.a4 a6 12.a5 Kh7 13.Rfd1 b5 14.ab6 Nb6 (14...Qb6 15.Na4 Qb7 16.Bc3+=) 15.e4+/- Nh5 (15...Qc7 16.Ra5+/-) 16.c5 Nd7 17.d5 cd5 18.c6 Ne5 19.Ne5+– Be5 20.Nd5 Nf4 21.Nf4 Bf4 22.Qf3 Bg5 23.e5 Ra7? 24.b5 Be6 25.ed6 ed6 26.Bd4 Bf6 27.Qf6 (27.Qf6 Qf6 28.Bf6+– (28.Ba7 Qe5-/+)) 1–0. b4_player – opponent, internet, 2008.

6.d4 c6 7.Nc3 Qb6 8.a3 0-0 9.Bd3 c5 10.bc5 Qb2 (10...dc5!? 11.Qe2 Qe6+=) 11.Na4+/- Qa1 12.Qa1 dc5 13.0-0 cd4 14.ed4 Nh5 (14...b6 15.Re1 e6 16.Nc3+/-) 15.Re1+– e6 16.Qc1 Nhf6 17.Qb1 (17.Nc3 b6+–) 17...b6+/- 18.Nc3 Bb7 19.Qb4 (19.Ne4 Rad8+/-) 19...Rfe8 (19...Bf3 20.gf3 Rfd8 21.h3+=) 20.Nb5 (20.Ne4 Red8+/-) 20...Bf8 (20...Bf3 21.gf3 Red8 22.Be4 Ne4 23.fe4+=) 21.Qb3+/- Bf3 22.gf3 Rec8 23.Nc3 Nh5 24.Be4+/- Rab8 25.Qa4 Ndf6 26.Qa7+– Ne4 27.Ne4 Ra8+/- 28.Qb7 (28.Qb7 Rcb8 29.Qc7+/-) 1–0. b4_player – opponent, internet, 2008.

6.d4 e6 7.Bd3 0-0 8.Nc3 a6 9.0-0 b6 10.Qb3 Bb7 11.Rfe1 (11.e4 Nh5+=) 11...Rb8 (11...Bf3 12.gf3 c5 13.Ne2=) 12.h3 (12.e4!?=) 12...Bf3=+ 13.gf3 c5 14.Qa4 Qc8 15.Rac1 Qb7 16.Kg2 d5 17.b5 ab5 18.Qb5 dc4 19.Qc4 cd4 20.ed4 Nh5 21.Be4 Qc8 (21...b5 22.Qb4 Qa6 23.Kh2=+) 22.Ne2 Qc4 23.Rc4 Ndf6 24.Rc6 Rfd8 25.Ba3 Nd5 26.Bd6 Ra8 27.Ra1 b5 28.Kf1 Bf8 29.Bd5 ed5 30.Bc7 Rdc8 31.Nc3= Nf4 32.Nb5 Ne6 33.a4 Nc7 34.Rc7+= Rc7 35.Nc7 Bg7?? 36.Na8+– 1–0. mrkt – hari, internet, 2011.

6.Be2 b6 7.d3 Bb7 8.Nbd2 Ne5 (8...c5!?=) 9.Ne5+= de5 10.Be5 Bg2 11.Rg1 Bh3 (better is 11...Bb7!?+=) 12.Bf3+/- Rb8 13.Qa4 Bd7 14.Qa7 Nh5?? (better is 14...Rc8+–) 15.Bc7 (15.Qc7?! Qc7 16.Bc7 Rc8+/-) 15...Qc8 (15...Ba1 16.Ke2 (< 16.Qb8 Qb8 17.Bb8 Nf6+–; < 16.Bb8 Nf6+–) 16...Bc3 17.Bd8 (< 17.Qb8 Qb8 18.Bb8 Nf6+–; 17.Bb8?! Bb4 18.Bc7 Qc8+–) 17...Rd8 18.Bh5 gh5 19.Qb6+–) 16.Qb8 0-0 17.Qc8 Rc8 18.d4 Rc7 19.c5 bc5 20.bc5 Nf6 21.a4 Ne8 22.a5 Rc5 23.dc5 Ba1 24.a6 Nc7 25.a7 Bb5 26.a8Q Na8 27.Ba8 e5 28.Ne4 f5 29.c6 fe4 30.c7 Bc3 31.Kd1 Ba4 32.Kc1 Bd7 33.Bb7 Ba5 34.c8Q Bc8 35.Bc8 Kf7 36.Bb7 1–0. Fournier,Frederic – astronik, rated blitz game (2), 2002.

6.Be2 c5 7.b5= a6 8.a4 ab5=+ 9.ab5 Ra1 10.Ba1 0-0 (10...Qa5 11.Bc3 Qc7 12.0-0=) 11.0-0 (11.Qb3 e5=) 11...e5 (11...Nb6 12.Nc3=) 12.d3 Re8 (12...b6 13.Nc3=) 13.Nc3 (13.Qb3 e4 14.de4 Ne4 15.Bg7 Kg7=) 13...b6 (13...Nb6 14.Qc2=) 14.Qc2 (14.Nd2 Nf8+=) 14...Bb7= Black plans e4 15.Nd2 Qa8 (15...Qc7 16.Bf3=) 16.Bf3 (16.Nde4 Ne4 17.de4 Nf6+=) 16...Bf3 17.Nf3 e4 (17...d5=) 18.Nd2 (18.de4!? Ne4 19.Nd5+=) 18...ed3= 19.Qd3 Re6 (19...Ne5 20.Qc2= (20.Qd6?? Re6 21.Qe6 fe6–+)) 20.Bb2 (20.Nf3 Ne4 21.Qd5 Qd5 22.Nd5 Re8 23.Bg7 Kg7+=) 20...Ne5 21.Qe2 (21.Qc2 d5=) 21...d5 22.cd5 Nd5 23.Ra1 (23.Rd1 Nc3 24.Bc3 Rd6=) 23...Qb7 (23...Qd8 24.Nd5 Qd5 25.Ra7=+) 24.Rb1 (24.Ra3 Nb4=) 24...Nc3 (24...Nb4 25.Rd1=+) 25.Bc3 Nf3 26.Nf3 Bc3 27.Qd3 (27.Nd2 Bd2 28.Qd2 Qe4=) 27...Bg7 (27...Bf6 28.Nd2=+) 28.Ng5 (28.Nd2!?=) 28...Re8=+ 29.Nf3 (29.h4 h6 30.Nf3 Qc7=+) 29...Ra8 (29...Bf6 30.Rc1=+) 30.Qc4 (30.Rd1 Bf6=+) 30...Ra1 (30...Qd7 31.h3=+) 31.Ra1= Ba1 32.h3 (32.e4 Qe7=) 32...Qd7=+ 33.Qc1 (33.Qb3 Bf6=+) 33...Bg7 (better 33...Bf6 34.Qc4 Kg7=+) 34.Ne1?? (better 34.Qc4=) 34...Qb5–+ 35.Qd1 Qb4 (35...c4 36.g3–+) 36.Qe2 (36.Nd3 Qa5 37.Qg4 Qc3–+) 36...Qa5 (36...c4 37.e4–+) 37.Kh2 (37.Nf3 b5–+) 37...b5 38.Nd3?! (38.f4–+) 38...c4 39.Nc5 (39.Nf4 c3 40.g3–+) 39…Qc7 (39...Qc7 40.g3 Qc5–+) 0–1. valpa – xerxes2u, playchess.de, 2003.

6.Be2 e5 7.0-0 0-0 8.Nc3 c6 9.Qb3 Nh5 10.d4 f5 11.c5 d5 12.Ne5 Ne5 13.de5 Be5 14.Bh5 gh5 15.Nd5 Be6 16.Be5 Bd5 17.Qc3 Qg5 18.f3 Rae8 19.Bf4 Qg6 20.a4 h4 21.h3 Rf7 22.Kh1 Rg7 23.Rf2 h6 24.b5 Kh7 25.Rd1 Reg8 26.bc6 bc6 27.Rb1 Qh5 28.Qf6 Rg2 29.Rg2 Bf3 30.Rb7 1–0. Wall – Palmtree, email 1996.

6.Be2 e5 7.Nc3 0-0=.

6.Be2 e5 7.d4 ed4 8.Nd4 0-0 9.0-0 c5 10.bc5 Nc5 11.Nc3 a6 12.Bf3 Rb8 13.h3 Bd7 14.Qc2 Qc8 15.a4 Bc6 16.Nc6 bc6 17.Rab1 Rd8 18.Ne2 d5?? (better 18...Nfd7 19.Nd4 Ne5+=) 19.cd5+– cd5? (19...Rb2 20.Rb2 cd5+–) 20.Bf6 Bf6 (20...Rb1 21.Bd8 (21.Rb1?! Bf6 22.Rc1 Be7+–) 21...Rb2 22.Qc1 Qd8 23.Qc5+–) 21.Rb8 Qb8 22.Qc5 1–0. Jeremiah – Pindear, internet, 2019.

5.Bc4 0-0

6.0-0 a6 7.Nc3 e5 8.d4 (8.e4 Nc6 9.a3 Nd4=) 8...e4 9.Nd2 d5 10.Bb3 c6 11.Na4 Nbd7 12.c4 b5 13.cb5 ab5 14.Nc5 Nc5 15.bc5 Ba6 16.Re1 Qd7 (16...Nd7 17.Qc1+=) 17.a4 (17.f3 Rfe8=) 17...ba4+= 18.Ba4 Bb7 (18...Rfb8 19.Qc2+=) 19.h3 (19.f3 Ba6=) 19...Nh5 20.f3 Ng3 (20...f5 21.Bc3=) 21.Kf2 (21.fe4 Ne4 22.Ne4 de4+=) 21...Qc7 22.Nf1 (22.fe4 Ne4 23.Ne4 de4+=) 22...Nh1 (22...Nf1!? 23.Kf1 Qh2 24.fe4 f5–+ (24...de4?! 25.Kf2=)) 23.Kg1= Ng3 24.Ng3 Qg3 25.fe4 de4 26.Rb1 (26.Qe2 Rfb8=) 26...Ra6 (better is 26...Bh6!? 27.Bc1 Ra4 28.Rb7 Rfa8+=) 27.Qe2?? (better is 27.Bc2 Re8 28.Qe2+=) 27...Ra4–+ 0–1. dmarsh – tjong, net–chess.com, 2018.

6.0-0 Nc6 7.a3 Ne4 8.Bg7 Kg7 9.d3 Nf6 10.Nc3 Bg4 11.h3 Bf3 12.Qf3 Ne5 13.Qb7 Nc4 14.dc4 a6 15.a4 Rb8 16.Qa6 Rb4 17.Rab1 Rb6 18.Rb6 cb6 19.Rb1 Nd7 20.Nd5 Nc5 21.Qb6 Qb6 22.Nb6 Rb8 23.a5 Na4 24.Rb5 Nb6 25.ab6 Kf6 26.b7 Ke6 27.c5 dc5 28.Rc5 Rb7 29.c4 Kd6 30.Rd5 Kc6 31.Rd8 Kc7 32.Rf8 f5 33.Rf7 Kc6 34.Rh7 Kc5 35.g4 fg4 36.hg4 Kc4 37.Rg7 Rb1 38.Kg2 Kd3 39.Rg6 Ke2 40.Re6 Rf1 41.f4 Rf2 42.Kg3 Kf1 43.g5 Rg2 44.Kf3 Rf2 45.Kg4 Rg2 46.Kf5 Kf2 47.g6 Kf3 48.Re7 1–0. Wall,Bill – Rncinhb, Microsoft Gaming Zone, 1999.

6.0-0 Nc6 7.c3 d5 8.Bb3 e5 9.d4 e4 10.Ng5 (better is 10.Ne5!?=+) 10...h6-/+ 11.Nh3 Bh3 12.gh3 Qd7 13.Kg2 Ne7 14.f4 ef3! 15.Qf3 Ne4 16.Bc1 Nf5 17.Kh1 Rae8 18.c4? (18.Bc2–+) 18...Ng5 19.Qd5 Qe7 20.c5? c6 21.Qc4?? Qe4 22.Kg1 Nh3 0–1. elsh1403 (1660) – akbar9999, kurnik, 2011.

6.0-0 e5 7.d4 e4 8.Nfd2 d5 9.Bb3 b5 10.a4 ba4 11.Ra4 c6 12.c4 Nbd7 13.Nc3 Nb6 14.Ra5 Bd7 15.Qa1 Qc7 16.Na4 Na4 17.Ba4 Ng4 18.g3 Nf6 19.Bb3 Bh3 20.Rc1 Qd7 21.Bd1 Ng4 22.Ba3 Rfe8 23.Nb3 Qf5 24.Qa2 Ne3 25.Qd2?? Nd1 26.Qd1 e3 27.f3 e2 28.Qc2 Qf3 (28...Qf3 29.Qe2 Re2 30.Ra7 Qg2#) 0–1. lllllll21 – zase (1660), kurnik, 2012.

6.0-0 e5 7.Ng5 d5 8.Bb3 (better is 8.Be2 e4 9.f3-/+) 8...Bf5 (better is 8...e4!?-/+) 9.Be5= Nc6 10.d4 (better is 10.Bc3!?+=) 10...Ne5=+ 11.de5 Nd7 (11...Ng4 12.Nf3 c6 13.Nd4=+) 12.f4 c6 (12...Ne5 13.Nc3 Ng4 14.Qe1-/+) 13.b5 (13.Nf3 a5 14.ba5 Qa5+=) 13...Nb6 (better is 13...Ne5!? 14.bc6 Ng4 15.cb7 Rb8–+) 14.a4 (14.Qd4=) 14...cb5 (14...f6!? 15.e4 fg5 16.ef5 Rf5 17.bc6 bc6=+) 15.ab5+/- f6 (better is 15...Nc4 16.Bc4 dc4+/-) 16.Ne6?? (better is 16.e4 fg5 17.ef5 Rf5 18.g3+=) 16...Be6–+ 17.e4 (17.ef6 Qf6 18.Ra5 Rfe8–+) 17...fe5 18.fe5 Rf1 19.Qf1 Be5 20.Ra2 Bd4 21.Kh1 1–0. rabelloenter (2000) – atlantan (1995), net–chess.com, 2006.

6.Nc3 a5 7.a3 Nbd7 8.d4 b6 9.0-0 Bb7 10.Rb1 ab4 11.ab4 c5 12.dc5 bc5 13.bc5 Nc5 14.Bd5 Nd5 15.Nd5 e6 16.Nf6?? Bf6–+ 17.Bf6 Qf6 18.Qd6 Ne4 19.Qc7 Bd5 (19...Bd5 20.Rbc1 Nc3–+) 0–1. Wurm,Tamas – Recio,Luis, IEGC, 2004.

6.d3 d5 7.Bb3-/+.

6.d3 e5 7.Nbd2 Nbd7 8.a4 Qe7 (8...Nb6 9.0-0=+) 9.e4 (9.0-0 Nb6=+) 9...Nh5 10.g3 Nb6 11.Bb3 Bh3-/+ 12.a5 Nd7 13.a6 b6 14.Bd5 Rad8-/+ 15.Nc4 Qf6 16.Nfd2 Qe7 17.Na3?? Nb8 18.Bb7 Bd7?? 19.c4 c6 20.Rc1 Nf6 21.Nb3 ½–½. Althoff,Guntram (2115) – Fritsch,Marcus (2035), Hessen–ch MVT, 2005.

6.d3 e5 7.Nbd2 Nbd7 8.Qe2 Nb6 9.Bb3 a5 10.b5 a4 11.Bc4 d5 12.Be5 dc4 13.dc4 Bg4 14.h3 Be6 15.c5 Nbd7 16.Bd4 Nd5 17.Bg7 Kg7 18.0-0 Nc5 19.c4 Nc3 20.Qe1 Nd3 21.Qd1 Nd1 22.Rfd1 Qe7 23.Nd4 Nc5 24.Ne6 Ne6 25.a3 Rfd8 26.e4 Rd7 27.Nf3 Rd1 28.Rd1 Rd8 29.Ra1 Nd4 30.Nh2 Qe4 31.Nf3 Ne2 32.Kh2 Nf4 33.Re1 Qc2 34.Kg3 Ne2 35.Kh2 f5 36.Ng5 Kf6 37.h4 h6 38.Nf3 g5 39.hg5 hg5 40.g3 Rh8 41.Kg2 g4 42.Nh4 Rh4 43.gh4 Nf4 44.Kg3 Ne2 45.Kg2 Nf4 46.Kf1 1–0. Adjailton (1855) – sidneydarepi (1795), lichess.org, 2020.

5.d3 0-0

6.Nbd2 Nc6 7.b5 Nb8 8.Be2 e5 9.0-0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.c4 Nc5 14.d4 Nce4 15.Ne4 Ne4 16.Bd3 f5 17.d5 Nf6 18.Be2 Ng4 19.h3 Nf6 20.Qb1 Ne4 21.Qc1 b6 22.Qa3 Bd7 23.Bb2 Qa8 24.Ra1 Qa3 25.Ra3 Nc5 26.Ra7 Rc8 27.Bf1 Ne4 28.Ba1 h6 29.Nh2 g5 30.Nf3 g4 31.hg4 fg4 32.Nh2 h5 33.Bd3 Nf6 34.Bg6 h4 35.e4 g3 36.fg3 hg3 37.Nf3 Bg4 38.Bf5 Bf3 39.Bc8 Be4 40.Rc7 Ne8 41.Rc6 Bh6 42.Rb6 Be3 43.Kf1 Bb6 44.Be6 Kg7 45.Ke2 Nf6 46.Bb2 Bg2 47.Ba3 Be4 48.Bd6 Ne8 0–1. joaquimbage – xadreztotal, kurnik, 2012.

6.Nbd2 e5 7.Be2 Nbd7 8.0-0 Qe7 9.c4 a5 10.a3 b6 11.Ne1 Bb7 12.Bf3 Bf3 13.Nef3 d5 14.Bc3 (14.cd5 ab4 15.Qb3 Nc5+=) 14...c5 15.bc5 bc5 16.e4 d4 17.Bb2 Rfb8 18.Qc2 Qd6 19.Rfb1 Qc6 20.Bc1 Ne8 21.Rb8 Rb8 22.Rb1 Rb1 23.Qb1 a4 24.Ne1 Nd6 25.g3 Bh6 26.Ng2 Qb6 (26...f5 27.ef5 gf5 28.Qc2+=) 27.Qb6= Nb6 28.f4 f6 29.Nf3 Nb7 30.Bd2 Kf7 31.Kf1 Nd7 32.Ke2 Ke8 33.Ng1 (33.g4 ef4 34.Bf4 Bg7+=) 33...Kf7 34.Nh3 Ke8 35.Ne1 Nd8 36.Nf3 Nc6 37.Kd1 Kf7 38.Nf2 Ke8 39.Ng4 Bg7 40.fe5 Nde5 41.Nfe5 Ne5 42.Nf2 Nf3 43.h3 Nd2 44.Kd2 h5 45.Nd1 f5 46.ef5 gf5 47.Nb2 Bh6 48.Ke2 Bc1 49.Na4 Ba3 50.Kf3 Kf7 51.Nb6 Ke6 (51...Bc1 52.Nd5 Bg5 53.Nf4=) 52.h4 (52.Nd5 h4+=) 52...Bc1= 53.Nd5 Bd2 54.Nc7 Kd7 55.Nb5 Bc1 56.Na7 Be3 57.Nb5 Bc1 ½–½. Kruck,Daniel (2175) – Hofrichter,Jens, GER–ch U15 Oberhof, 1998. (=1.Nf3 Nf6 2.e3 d6 3.b4 g6 4.Bb2 Bg7)

5.Be2 0-0

(--> 4.e3 0-0 5.Be2 d6).

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2).

5.Be2 b6

6.0-0 Bb7 7.d4 0-0 8.Nbd2 Ne4 9.c4 c5 10.Qc2 Nd2 11.Qd2 Nc6 12.b5 Nb8 13.a4 Nd7 14.Rfc1 Bh6 15.d5 Nf6 16.a5 Bg7 17.a6 Bc8 18.Qc2 Bf5 19.Bd3 Bd3 20.Qd3 Qd7 21.e4 Qg4 22.Re1 Nh5 23.h3 Qd7 24.e5 de5 25.Ne5 Be5 26.Be5 e6 27.d6 f6 28.Bb2 e5 29.Rad1 Nf4 30.Qf3 h5 31.Bc1 Rad8 32.Bf4 ef4 33.Qf4 g5 34.Qf3 g4 35.Qf4 gh3 36.g3 Qg7 37.Re7 Qg5 38.Qe4 Qg4 39.Qh7 1–0. Orang4Utan (1840) – agz20 (1835), lichess.org, 2020.

6.a3 c5 7.bc5 bc5 8.d3 Nc6 9.Nbd2 0-0 10.0-0 e6 11.Rb1 d5 12.c4 Qc7 13.cd5 ed5 14.g3 Bh3 15.Re1 Rac8 16.Ng5 Be6 17.Ne6 fe6 18.Bg4 Ng4 19.Qg4 e5 20.Qe6 Qf7 21.Qg4 Qf2 22.Kh1 Qd2 23.Qe6 Kh8 24.Qd5 Rf2 25.Rg1 Rh2 0–1. sunnyda – rukinson1 (1610), kurnik, 2012.

5.Be2 c6

6.0-0 0-0 7.d4 b6 8.Nbd2 c5 9.a3 cb4 10.ab4 a5 11.Nc4 Nc6 12.ba5 Na5 13.Bc3 Nd5 14.Bd2 Bb7 15.Na5 ba5 16.c4 Nc7 (16...Nb4!?=) 17.Qb3 Bc6 18.Ba5 Qd7 19.Bc7 (better is 19.d5!? Ba1 20.dc6 Qc6 21.Ra1+–) 19...Qc7+/- 20.d5?? (better is 20.Qd3+/-) 20...Ra1 21.Ra1 Bb7?? (better is 21...Ba1 22.dc6 Qc6–+) 22.Rb1 Ba6 23.h3 Rc8 24.Nd2 h5 25.Qb6 Qb6 26.Rb6 Ra8 27.Ne4 f5 28.Ng5 Bf6 29.Ne6 Bc8 30.Nc7 Ra1 31.Kh2 Bd7 32.Rb8 Kf7 33.Rb7?? Bc8 34.Rb2?? Bb2–+ 0–1. emeryt85 – tt066, kurnik, 2011.

6.0-0 b5 7.c4 a6 8.Nc3 0-0 9.d3 Bg4 10.h3 Bd7 11.Qd2 d5 12.c5 (12.a4 bc4 13.dc4 a5 14.ba5 Qa5+=) 12...Bf5 (12...a5 13.a3=) 13.Rfd1 (13.a4 ba4 14.Na4 Ra7+/-) 13...Nbd7 (13...a5 14.a3=) 14.a3 (14.Nd4 Qc7+=) 14...e5 15.Na2 (better 15.a4+=) 15...Bh6 (better 15...Re8!?=) 16.Ne5+/- Qc7 (16...Ne5 17.Be5 Re8 18.Bd4+/-) 17.Nd7+- Nd7 18.Qc3 Threatening mate: Qh8 18...f6 19.Qe1 (19.Nc1 Rae8+-) 19...Rae8 20.Nc1 Ne5 21.Bc3 Qd7 (21...Be6 22.a4+/-) 22.Qf1 (22.a4 Bg7+/-) 22...Re7 (22...Bg7 23.Nb3+/-) 23.Ra2 (23.a4 Bg7+/-) 23...Qe6 (better 23...Be6!?+/-) 24.Nb3?? (better 24.g4 Ng4 25.hg4 (25.Bg4?! Bg4 26.hg4 Qg4 27.Kh2 Qh5 28.Kg3 Qg5 29.Kh3 Qh5 30.Kg2 Qg4 31.Kh1 Qf3 32.Kh2 Qh5 33.Kg1 Qg4 34.Kh2 Qh5=) 25...Bg4 26.Qg2 Be2 27.Re2+- (27.Ne2?! d4+/-)) 24…d4=+ (24...d4 25.Rb1 dc3=+ (worse 25...de3 26.f4+/-)) 0-1. algernon (2345) - ramesis (2520), net-chess.com, 2022.

6.a4 0-0 7.c4 Qb6 8.Qb3 a5 9.b5 Qc7 10.0-0 d5 11.cd5 Nd5 12.d4 Nf6 13.Nc3 Be6 14.Qc2 cb5 15.ab5 Nbd7 16.Ba3 Bf5 17.Qb2 Rfe8 18.Rfc1 Qb8 19.Na4 Be4 20.Nc5 Nc5 21.Bc5 Ng4 22.h3 Bf3 23.Bf3 Qh2 24.Kf1 Nf6 25.Bb7 e5 26.Ba8 Ra8 27.b6 Nd7 28.b7 Rb8 29.Ra5 Nc5 30.Rcc5 ed4 31.ed4 (31.ed4 Re8 32.Re5 Be5 33.de5 Qh1 34.Ke2 Qg2 35.b8Q Qe4 36.Kd2 Qf4 37.Kd3 Qf5 38.Kc4 Rc8 39.Qc8 Qc8 40.Kb4 Qb7 41.Rb5 Qe7 42.Ka4+–) 1–0. renatus62 – jardaz, kurnik, 2012.

5.Be2 Nbd7

6.0-0 0-0 7.d3 b6 8.Nbd2 Bb7 9.c4 c5 10.b5 Rc8 11.Qc2 Ba8 12.a3 Qc7 13.Rac1 Qb7 14.e4 Ne5 15.Ne5 de5 16.Be5 Bh6? (better is 16...Ne4!? 17.Nf3 Be5 18.Ne5 Nd2=) 17.Rcd1 Nd7 18.Bb2 f5 19.Bf3 Nf6?? (better is 19...Qc7+/-) 20.e5+– Ne4 (20...Qc7 21.ef6 ef6 22.Ba8 Ra8 23.Rfe1+–) 21.de4 Bd2 22.ef5 Qb8 23.Ba8 Qa8 24.Rd2 Rf5 25.e6 Rcf8 26.Qc3 R8f6 27.Rd7 Qf8 28.f3 Rh5 29.Ra7 Qh6 30.h3 Qg5 31.Ra8 Kg7 32.Qc1 Qg3 33.Bf6 Kf6 34.Qb2 Kf5 35.Rf8 Kg5 36.Qd2 Kh4 37.Rf4 Qf4 38.Qf4# 1–0. ejdrzej (1635) – sacz, kurnik, 2012.

6.0-0 c5 7.b5 b6 8.d3 Bb7 9.Nbd2 0-0 10.c4 e5 11.Qc2 e4? (better is 11...Qc7!?=) 12.de4 Be4?? (12...Qe7+/-) 13.Bd3 (better is 13.Ne4 Ne4 14.Bg7 (14.Qe4?! Bb2 15.Rad1 Re8+/-) 14...Kg7 15.Qe4+–) 13...d5 (13...Bd3 14.Qd3 Ne5 15.Qa3+=) 14.cd5 Bd5 15.a3 Qc7 16.Rac1 Rac8 17.Rfd1 Qb7 18.Be2 Ne4? (better is 18...Rfd8+=) 19.Bg7+– Kg7 20.Ne4 Be4 21.Qc3 f6 22.Rd6 Ne5?? 23.Ne5+– Bg2 24.Rd7 Kh6 25.Rb7 Bb7 26.Nc6! Bc6 27.bc6 Rc6 28.Bf3 Re6 29.Rd1 Re5 30.Rd7 Rg5 31.Kf1 a6 32.h4 Rf5 33.Ke2 b5 34.Rd6 c4 35.Ra6 Re8 36.Rf6 Rfe5 37.Qd4 b4 38.ab4 c3 39.Qc3 Kg7 40.Rc6 Kh6 41.Rc5 R5e6 42.b5 Rb6 43.Bc6 Rbb8 44.Be8 Re8 45.b6 Re5 46.Re5 (46.Re5 Kg7 47.Re7 Kh6 48.Qe5 g5 49.Qg5#; 46.Qe5 g5 47.Qg5#) 1–0. ejdrzej (1675) – sacz, kurnik, 2012.

6.0-0 c5 7.b5 b6 8.d3 Bb7 9.Nbd2 0-0 10.c4 e5 11.Qc2 Ne8 12.a3 f5 13.Rac1 Ndf6 14.d4 e4 15.Ne1 Nh5 (15...a6 16.Rd1=) 16.d5 Qg5 17.Bg7 Neg7 18.g3 f4? (better is 18...a6=) 19.Ne4+– (19.Qe4?! Rae8 20.Ndf3 A) worse is 20...Re4 21.Ng5 Re5 22.Ngf3+/- (22.gf4?! Nf4 23.ef4 Re2=); B) 20...Qh6+=) 19...Qf5? (better is 19...Qe7 20.ef4 a6 21.ba6 Ra6+–) 20.g4 (20.Nd6?! Qd7 21.Nb7 fg3 22.fg3 Qb7+–) 20...Qd7 21.gh5 Nh5 22.Bh5 gh5 23.Kh1 Rf7 24.Rg1 Rg7 25.Nf3 Rf8 26.Rg7 Qg7 27.Rg1 Rf7 28.Nd6 Qg1 29.Kg1 Rg7 30.Kf1 h4 31.Nb7 Rb7 32.Nh4 f3 33.Nf3 Rg7 34.Ke2 Rg2 35.h4 Rg7 36.Qf5 h6 37.d6 Rf7 38.Qe6 Kg7 39.Ne5 Rf6 40.Qe7 Kh8 41.Qf6 Kg8 42.Qf7 (42.Qf7 Kh8 43.Ng6#) 1–0. ejdrzej (1650) – sacz, kurnik, 2012.

6.0-0 c6 7.d3 Qc7 8.Nbd2 0-0 9.c4 e5 10.Qb3 Re8 11.Rac1 a6 12.a4 Nf8 13.h3 Be6 14.Ng5 h6 15.Ne6 Ne6 16.Ne4 Ne4 17.de4 Ng5 18.Bd3 Rac8 19.Bb1 Qe7 20.Rfd1 Bf6 21.Ba2 Ne6 22.c5 dc5 23.bc5 Red8 24.Ba3 Rd1 25.Qd1 Rd8 26.Qg4 h5 27.Qg3 Ng5 28.f3 Rd3 29.Qf2?? Ra3–+ 30.Rd1 Qc5 31.Rd7 Qe3 32.h4 Qf2 (32...Qf2 33.Kf2 Ra2 34.Ke3 Ne6–+) 0–1. elsh1403 – rukinson1 (1665), kurnik, 2011.

6.0-0 e5 7.d3 0-0 8.Nbd2 b6 9.c4 Bb7 10.a4 a5 11.b5 Nc5 12.Nb3 Ne6 13.Qc2 e4 14.de4 Be4 15.Qc1 Bb7 16.Nfd4 Ne4 17.Bf3 Rb8 18.Ne6 Bb2?? 19.Qb2 fe6= 20.Qc2 d5?? 21.cd5 ed5 22.Be4 de4 23.Rac1 Bd5 24.Nd4 Rc8 25.Rfd1 Qf6 26.Nc6 Be6 27.Rd2 Qg5 28.Qe4 Bf5?? 29.Qd5 Rf7 30.Ne7 Qe7–+ 31.h3 Be6 32.Qd4 Qf6 33.Qe4 Rcf8 34.f4 Bf5 35.Qc4 Be6 36.Qc6?? Qf5 37.Rf2 Bd5 38.Qc3 Qe4 39.Qd2? c6 40.bc6 Bc6 41.Kh2 Rd7 42.Qc2?! Rfd8 43.Qe4?? Be4–+ 44.Re1 Rd1 45.Rd1 Rd1 46.Rb2 Re1 47.Rb6 Re3 48.Rb8 Kg7 49.Rb7 Kh6 50.Re7 Re2 51.Re4 (51.Re4 Re4 52.Kg3–+). ejdrzej (1645) – sacz, kurnik, 2012.

6.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 Nbd7).

6.c4 c5 7.b5 b6 8.a4 Bb7 9.0-0 0-0 10.h3 e5 11.Nc3 Ne8 12.Nh2 Ndf6 13.Bf3 d5 14.cd5 Nd5 15.Qb3 Nec7 16.Ng4 Rb8 17.Ne4 f5 18.Be5 fg4 19.Bg7 Kg7 20.hg4 Nf6 21.Ng5 Bf3 22.gf3 Qd2 23.Rad1 Qb4 24.Qa2 c4 25.e4 Qb3 26.Qe2 Rbd8 27.e5 Nfd5 28.e6 Rf6 29.e7 Re8 30.Rd5 Nd5 31.Ne6 Kf7 32.Ng5 Kg7 33.Ne6 Kh8 34.Rd1 Qf3 35.Qf3 Rf3 36.Rd5 Rd3 37.Re5 Rd1 38.Kg2 c3 39.f4 Rd2 0–1. frholak – sacz, kurnik, 2012.

5.Be2 e5

6.0-0 0-0 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.0-0).

6.0-0 a6 7.d3 Nc6 8.a3 Bg4 9.Nbd2 0-0 10.c4 h6 11.h3 Bf3 12.Bf3 (< 12.gf3 Nh7=+) 12...Nh7 13.Qc2 Ng5 14.Bd5 Kh8 15.Rae1 Ne7 (15...Ne6!?+/-) 16.Bb7 Ra7 17.Be4 f5 18.Bf3 Nf3 19.Nf3 f4 (19...a5 20.b5+/-) 20.ef4 Rf4 21.d4! Nc6? 22.de5 (22.Qg6 Ne7 23.Qd3 e4 24.Re4 Re4 25.Qe4 c6+–) 22...Ne5? (better is 22...Rf3 23.gf3 Qg5 24.Kh1 Be5+–) 23.Ne5 Be5 24.Be5 de5 25.Qg6 Qf6 26.Qe8 Kg7 27.Re5 c6 28.c5 Rf7 29.Re2 Qc3 30.Qe5 Qe5 31.Re5 R7f6 32.f3 Rc4 33.Rfe1 Rc3 34.R1e3 Rc2 35.Kh2 Rg6 36.Re2 Rc3 37.Re7 Kf8 38.R7e3 Rc1 39.g4 Kf7 40.h4 Rf6 41.h5 Rf1 42.Kg2 Rd1 43.Rb2 Rc1 44.Rd2 a5 45.Rd7 Kf8 46.Rb7 ab4 47.ab4 Rc2 48.Kg3 Kg8 49.f4 Rc1 50.Re8 Rf8 51.Rf8 Kf8 52.g5 hg5 53.fg5 Rg1 54.Kf4 Rf1 55.Ke5 Re1 56.Kf6 Rf1 57.Kg6 Re1 58.h6 Re6 59.Kh5 Kg8 60.Rg7 Kh8 61.Rg6 Re4 62.Rc6 Rb4 63.g6 Rb8+– 64.h7 Kg7 65.Rc7 Kf6 66.Rf7 Ke6 67.Kh6 Rc8 68.Ra7 Kd5 69.g7 Rc6 70.Kg5 Rc5 71.g8Q Kd4 72.Kg4 Kc3 73.h8Q Kb4 (73...Kb4 74.Qb2; 73...Kd3 74.Rd7 Rd5 75.Qd5 Ke2 76.Qb2 Ke3 77.Qe6). ejdrzej (1730) – robrobert (1625), kurnik, 2011.

6.0-0 Nc6 7.b5 Ne7 8.a4 a6 9.c4 Bd7 10.h3 ab5 11.cb5 c6 12.Nc3 cb5 13.Nb5 Bb5 14.Bb5 Kf8 15.Qb3 Nfd5 16.d4 ed4 17.Bd4 Bd4 18.Nd4 Kg7 19.Rac1 Re8 20.Rc2 Rf8 21.Rfc1 Nb6 22.Rc7 Rc8 23.Rc8 Nbc8 24.Qc3 Nd5 25.Ne6 1–0. Abdullaevich (1815) – mcp007 (1820), lichess.org, 2019.

6.0-0 Be6 7.d3 0-0 8.Nbd2 a6 9.c4 Nbd7 10.Qc2 c6 11.a4 Rc8 12.a5 b5 13.h3 c5 14.bc5 Nc5 15.cb5? (15.Rfc1 b4=) 15...ab5?? (better is 15...Nb3! 16.Qb1 Na1 17.Ba1 Qa5-/+) 16.Qd1 (better is 16.Qb1!?=) 16...Na4+= 17.Ba3 Nc3 (worse is 17...Qa5 18.Bd6 e4 19.de4+/- (19.Ne4?! Ne4 20.de4 Ba1 21.Qa1 Rfd8=)) 18.Qe1 Nfd5 (18...Qa5 19.Bd6 Ne2 20.Qe2+/-; 18...Ne2 19.Qe2 Ra8 20.e4 Ra5 21.d4 ed4 22.Nd4-/+) 19.d4? (better is 19.Ne4!? Ne2 20.Qe2=) 19...b4 (19...Ne2?! 20.Qe2 Nc3 21.Qd3+=) 20.Bb2 e4 21.Nh2 Qd7 22.Bg4 f5 23.Be2? f4?? 24.ef4 Nf4 25.Bc3 bc3 26.Ne4 Bh3?? 27.gh3+/- Qh3 28.Bf3 Bd4 29.Ng5?? Qg3–+ 30.Kh1 Qg5 31.Bg4 Qd5 32.Bf3 Qc5 33.Ng4 Rce8 34.Qc1 Qh5 35.Nh2 Qh3 36.Qc2 Nh5 37.Qb3 Kh8 38.Qd5 Rf3! 39.Qf3 Qf3 40.Nf3 Be5?? 41.Kg2?? Nf6 42.Ng5 1–0. ejdrzej (1675) – anmario, kurnik, 2012.

6.0-0! Be6 7.d4 e4 8.Nfd2 d5 9.c4 c6 10.b5 0-0! 11.Nc3 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 Nbd7 15.Qa7 Qb6 16.Ra1 h5 17.c5 Qc7 18.bc6 Qc6 19.Bb5 Qc7 20.c6 Nb6 21.Qb7 Qb7 22.cb7 Rb8 23.Ra7 Nc4 24.Bc4 dc4 25.Nde4 Nd5 26.Ra8 1–0. iwan19999 – mb88, kurnik, 2012.

6.a3 0-0 7.0-0 a5 8.b5 b6 9.d3 Bb7 10.a4 (10.c4 Re8+=) 10...Nbd7= 11.c4 Nc5 12.Qc2 Re8 13.Nc3 Qd7 14.e4 Nh5 15.Nd5 Bd5 16.cd5 Nf4 17.Rfe1 (17.h3 f5+=) 17...Ne2 (17...Qg4!? 18.g3 Nfd3 19.Bd3 Qf3=+) 18.Qe2 f5 19.Ng5 h6 20.Nf3 fe4 21.de4 Rf8 22.Qe3 Rf4 23.h3?? (better is 23.Nd2+=) 23...Raf8 (better is 23...Re4 24.Qd2 Ra4 25.Ra4 Na4–+) 24.Bc1? (better is 24.Qa3-/+) 24...Re4–+ 25.Qe4 Ne4 26.Re4 Qf5 27.Rg4 e4 28.Rf4 Qf4 29.Bf4 Ba1 30.Bd6 cd6 31.Nd2 Re8 32.Kf1 Bc3 33.Nb1 Bd4 34.Ke2 e3 35.f3 Rc8 36.Na3 Rc3 37.Nb1 Rc2 38.Kd3 Rb2 39.Kd4 Rb1 40.Ke3 Rb4 41.g4 Ra4 42.f4 Kf7 43.f5 gf5 44.gf5 Kf6 45.h4 Kf5 46.h5 Kg5 47.Kd3 Kh5 48.Ke3 Kg5 49.Kd3 h5 50.Ke3 h4 51.Kf3 Ra3 52.Ke4 h3 53.Kd4 h2 54.Ke4 h1Q (54...h1Q 55.Kd4 Qh4) 0–1. erisonpassos – termo80 (1790), kurnik, 2011.

6.c4 Nc6 7.a3 e4 8.Nd4 Ne5 9.f4 ef3 10.Nf3 Nfg4 11.Nc3 Nf3 12.Bf3 Ne5 13.d3 Qh4 14.g3 Qg5 15.Qe2 0-0 16.0-0 Bh3 17.Bg2 Bg4 18.Qd2 Rae8 19.Rf4 c6 20.Ne4 Qe7 21.Raf1 f5 22.h3 Bh5 23.g4 fe4 24.Be4 Rf4 25.ef4 Nc4 26.dc4 Bb2 27.Re1 Qf6 28.gh5?? Bc3–+ 29.Bd5 Kg7 30.Re8 Bd2 (31.Bf3 Qf4–+) 0–1. Althoff,Guntram (2145) – Cubedo Cano,Pablo (2105), Mislata op–B, 2003.

6.d3 0-0 7.Nbd2 Nbd7 8.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.Nbd2).

6.d3 Nbd7 7.a4 0-0 8.Nbd2 Nd5 9.c3 a5 10.Qb3! N7f6 11.b5 Be6 12.c4 Nb4 13.0-0 c5 14.Ng5 Bg4 15.f3 Bh6 16.h4 Bc8 17.f4! Bg4 18.Bf3! Bf3 19.Rf3 ef4 20.Raf1 d5! 21.Bf6! Qf6 22.cd5 Qe5! (22...Bg5? 23.Ne4 Qe5 24.hg5 Nd5? 25.Qd5 Qd5 26.Nf6) 23.Nde4 f5! 24.d6 Kh8 25.Rf4! Nd5 26.R4f3 Ne3 27.Re3 fe4? (27...Bg5! 28.hg5 fe4) 28.Rf8 Rf8 29.Re4 Qf5 30.Qe6! Qf2 31.Kh2 Bg7 32.d7 Bd4 33.Nf3! Rf3 34.d8Q Kg7 35.Qee7 Kh6 36.Qg5 1–0. Basman – McNab, Ilford 1980 (Basman).

6.d4 e4 7.Nfd2 c6 8.c4 d5 9.Nc3 Be6 10.Qc2 0-0 11.0-0 Nbd7 12.Rfc1 Rc8 13.Rab1 Kh8 14.Na4 (14.b5 Qb6+=) 14...Nb6 (14...Bg4 15.Bf1=) 15.Nc5+= Qe7 16.a4 Ne8 17.a5 Nc4 18.Nc4 dc4 19.Bc4 (19.Ne6!? Qe6 20.Bc4+=) 19...Bc4= 20.Qc4 Nd6 21.Qb3 b6 22.ab6 ab6 23.Na4 b5 24.Nc5 Nc4 25.Ra1 Ra8 26.Ra6 Ra6 27.Na6 Ra8 (27...f5 28.Nc5=) 28.Ra1 f5 29.Bc3 (better is 29.Nc5!? Ra1 30.Ba1=) 29...f4+= 30.Nc5 Ra1 31.Ba1 fe3 32.fe3 Qg5 33.Ne6 Qf6 (better is 33...Qg4 34.Nf4 Kg8–+) 34.Ng7= Kg7 35.Qc3 (35.Qb1!? Qe7 36.d5 Kf7 37.dc6 Ne3 38.Bd4=) 35...Kf8 36.Qe1 (36.Bb2!?+=) 36...Qg5-/+ 37.Kf2 (37.Qf2!? Ke7 38.Qf4 Qf4 39.ef4–+) 37...Qh4–+ 38.Ke2? (38.Kf1 Qe1 39.Ke1 Ne3–+) 38...Qe1 (better is 38...Qh2!? 39.Qf2 Ke8 40.Bc3 Qh5 41.Ke1 Qh1 42.Ke2–+) 39.Ke1 Ne3 40.Kf2 Nd5 41.Bb2 Kf7 42.Bc1 Ke6 (42...Nb4!? 43.Ke3 Nd3 44.Bd2–+) 43.Bd2 Nb6 44.Bg5 Kd5 45.Be7 (45.Ke2 Nc4–+) 45...Nc4 (45...Kc4 46.Bc5 Nd5 47.Ke2 Nb4 48.Ba7–+) 46.Bc5 Na3 0–1. Pahnke,Daniel – Hain,Christian, NRW–chT U18, 1999. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.Be2 e5)

5.Be2 Bg4

6.0-0 0-0 7.d3 Qd7 8.Nbd2 c5 9.a3 b6 10.c4 cb4 11.ab4 Nc6 12.b5 Nd8 13.h3 Bf3 14.Bf3 Rb8 (14...Rc8!?+/-) 15.Qa4+– d5 16.Qa7 Qd6?? (16...Rb7 17.Qa6 Ne8 18.Bg7 Kg7 19.cd5 Nc7+–) 17.Ba3 Qe5 (17...Rb7 18.Bd6 Ra7 19.Ra7 ed6 20.cd5 g5+–) 18.d4 Qg5 19.Qb8 dc4 20.Nc4 Ne6 21.Qe5 Qh6 22.Nb6 Nd7 23.Qg3 Nb6 24.Be7 Re8 25.Bc5 Nc4 26.b6 Nd2 27.Rfc1 Ng5 28.Bc6 Re6 29.b7 Rc6 30.b8Q Bf8 31.Bf8 Rc1 32.Rc1 Qf8 33.Rc8 (33.Rc8 Ngf3 34.gf3 Nf3 35.Qf3 h5 36.Rf8 Kg7 37.Rh8 g5 38.Qg8) 1–0. d4nf6 (1935) – ismeti64 (1745), kurnik, 2011.

6.0-0 c6 7.d3 Nbd7 8.Nbd2 0-0 9.c4 Bf3 10.Bf3 (< 10.gf3 e5=+) 10...e6 11.a4 d5 12.Qb3 Rb8 13.d4 Qc8 14.Rac1 Qd8 15.cd5 Nd5 16.e4 Ne7 17.Rfd1 a6 18.Nc4 b5 19.ab5 cb5 20.Nd6 Nb6 21.e5 Nec8 22.Nc8 (better is 22.Nb7!? Qe7 23.Nc5+–) 22...Rc8+/- 23.Rc8 Qc8 24.Rc1 Nc4 25.Be2 Rd8 26.Bc4 bc4 27.Rc4 Qb7 28.h3 Bf8 29.Bc3 Kg7 30.Qa4 Rc8 31.Rc8 Qc8 32.Qb3 Qc6 33.Bb2 Qe4 34.Qf3?? Qb1–+ 35.Kh2 Qb2 36.Qf6 Kg8 37.Qd8 Qb4 38.d5 ed5 39.Qd5 a5 40.e6 Qd6 41.Qd6 Bd6 42.g3 fe6 0–1. elsh1403 – klimasss, kurnik, 2011.

4.e3 e6

5.c4 d6 6.b5 c6 7.a4 cb5 8.cb5 0-0 9.Be2 Nbd7 10.0-0 a6 11.Nc3 ab5 12.Nb5 Nc5 13.d4 Nce4 14.Ba3 Ra4 15.Qa4 Bd7 16.Qb4 Nd5 17.Qb3 g5 18.Rfc1 g4 19.Ne1 Nd2 20.Qd1 Bb5 21.Bb5 Qb6 22.Bd3 Nb3 23.Rcb1 g3 24.hg3 e5 25.Rb3 Qc6 26.de5 Be5 27.Rc1 Qd7 28.Be4 Nf6 29.Rb7 Qg4 30.Qg4 Ng4 31.Bf3 Nf6 32.Nd3 Rc8 33.Rc8 1–0. Abdullaevich (1880) – ConcreteCapa (1815), lichess.org, 2020.

5.d3 b6 6.Be2 Bb7 7.0-0 Nc6 8.b5 Ne7 9.a3 Ned5 10.a4 0-0 11.c4 Ne7 12.Ba3 Re8 13.d4 d6 14.Nbd2 a6 15.Bb2 ab5 16.ab5 Ra1 17.Ba1 d5 18.c5 bc5 19.dc5 Qa8 20.c6 Bc8 21.Ne5 Qa5 22.Nb3 Qb4 23.Nd3 Qb5 24.Ne5 Qb6 25.Bd4 Qb8 26.Nc5 Ne4 27.Ned7 Bd7 28.Ne4 Bc6 29.Bg7 Kg7 30.Qa1 e5 31.Qe5 Kg8 32.Nf6 Kf8 33.Ne8 Qe8 34.Qc7 Kg7 35.Qe5 Kg8 36.Qg3 Qd7 37.Ba6 Nf5 38.Qb8 Kg7 39.Qe5 Kh6 40.g4 Nh4 41.h3 Nf3 0–1. arti000 – rexhepi55, kurnik, 2012.

5.d3 d5 6.Nbd2 0-0 7.c4 dc4 8.Nc4 Nc6 9.a3 Re8 10.b5 Ne7 11.Qc2 c6 12.a4 a6 13.bc6 Nc6 14.Bc3 Nd5 15.Bg7 Kg7 16.Qb2 Kg8 17.Nce5 Bd7 18.Be2 f6 19.Nc6 Bc6 20.0-0 Kf7 21.Nd4 Rc8 22.Rac1 e5 23.Nc6 Rc6 24.Rc6 bc6 25.Qb7 Qc7 26.Qa6 Nc3 27.Bf3 e4 28.Qc4 Nd5 29.de4 Kg7 30.ed5 g5 31.Qc6 Qe7 32.d6 Qe5 33.d7 1–0. eliton – prety, kurnik, 2012.

5.d4 d6 6.Be2 0-0 7.0-0 Nbd7 8.c4 b6 9.Nc3 Bb7 10.b5 c5 11.a4 Rb8 12.Qc2 cd4 13.Nd4 Nc5 14.Rad1 Nce4 15.Ne4 Ne4 16.Bf3 d5?? (16...Nc5 17.Bb7 Bd4 18.ed4 Nb7 19.d5+=) 17.cd5?? (17.Be4!? de4 18.Ne6 Qe7 19.Nf8 Kf8 20.Bg7 Kg7+–) 17...ed5? (17...Ng5 18.Qe2 ed5 19.Nc6 Bc6 20.Bg7 (20.bc6?! Nf3 21.gf3 Bb2 22.Qb2 Qg5 23.Kh1 Qf5+=) 20...Bb5 21.ab5 (21.Qb5?! Nf3 22.gf3 Qg5 23.Kh1 Kg7+=) 21...Nf3 22.Qf3 Kg7 23.Rd5+=) 18.Nc6 Bc6 19.Be4 Ba8 20.Bg7 Kg7 21.Qc3 Kg8 22.Qe5?? Re8–+ 23.Qf6 Qf6 (23...Qf6 24.Bd5 Bd5 25.Rd5 Re4–+) 0–1. mihai740609 – ibush, kurnik, 2011.

5.Be2 Qe7 6.a3 0-0 7.0-0 d5 8.d4 c6 9.Nbd2 Nbd7 10.c4 dc4 11.Nc4 b5 12.Nce5 Ne5 13.Ne5 Bb7 14.Rc1 Rfc8 15.Bf3 Qe8 16.Qc2 Nd5 17.Nd3 a5 18.Nc5 Qe7 19.Nb7 Qb7 20.Qb3 ab4 21.ab4 Ra4 22.Bd5 cd5 23.Rc8 Qc8 24.Rc1 Qa8 25.h3 Bf8 26.Bc3 Ra3 27.Qb2 Ra2 28.Qb3 Re2 29.Ra1 Qd8 30.Kf1 Rf2 31.Kf2 Qf6 32.Kg1 Qg5 33.Re1 Bd6 34.Qc2 Qg3 35.Qf2 Qh2 36.Kf1 Bg3 37.Qe2 Qh1# 0–1. mihai740609 – beniki, kurnik, 2012.

5.c4 0-0

6.Qc2 d5 7.c5 c6 8.d4 b6 9.Be2 bc5 10.bc5 Nbd7 11.0-0 Ne4 12.Nbd2 Nd2 13.Qd2 a5 14.Bc3 a4 15.a3 Nf6 16.Rab1 Ne4 17.Qc2 Nc3 18.Qc3 Ba6 19.Rfe1 Be2 20.Re2 Rb8 21.Reb2 Rb2 22.Rb2 Qc7 23.Qb4 Ra8 24.Qb7 Qc8 25.Rb4 h5 26.Qc8 Rc8 27.Ra4 Bf6 28.g3 Rc7 29.Ra8 Kg7 30.a4 g5 31.a5 g4 32.Ne5 Be5 33.de5 Kg6 34.a6 Kf5 35.Kg2 Ke5 36.h3 gh3 37.Kh3 f5 38.a7 Ke4 39.Kg2 e5 40.f4 ef4?? 41.ef4 Kd4+= 42.Kf3 Kc5 43.Ke3 Kb6 44.Rb8 Ka7 45.Rf8 c5 46.Rf5 d4 47.Kd3 Kb6 48.Rh5 Kb5 49.g4 Kb4 50.Rh1 Rf7 51.f5 Re7 52.Rb1+– Ka5 53.f6 Re3 54.Kc4 Rf3 55.Kc5 Ka4 56.g5 d3 57.Kc4 d2 58.Rd1 Rf2 59.Kc3 Kb5 60.Rd2 Rf3 61.Rd3 Rf4 62.Rd7 Kc5 (62...Kc5 63.f7 Kc6+–). ourang – tafa5, kurnik, 2012.

6.Be2 c6 7.0-0 d5 8.a4 Nbd7 9.b5 Re8 10.Nc3 dc4 11.Bc4 Nd5 12.Bd5 cd5 13.Qb3 Nc5 14.Qa3 Nd3 15.Ne1 Nb2 16.Qb2 b6 (16...e5 17.a5+=) 17.Rc1 (17.d4 a6=) 17...a6 18.Qb3 (18.d4 Qd6=) 18...Bd7 (18...d4 19.ed4 Qd4 20.Nf3+=) 19.Nf3 a5 (19...ab5 20.Nb5 Bb5 21.ab5=) 20.Ne2 Rc8 21.Rc8 Qc8 22.Rc1 Qb7 23.h3 Rc8 24.Qb1 e5 25.Rc8 Qc8 26.Qc1 Qc1 27.Nc1 e4 28.Nh2 d4 29.Kf1 Be6 30.Ke2 d3 31.Ke1 f5 32.f3 Bb2 33.Kd1 Be5 34.fe4? Bh2 35.Nd3 fe4 36.Nf2 0–1. alfons78 – afgani72 (1770), kurnik, 2012.

5.c4 d5

6.d4 c6 7.Nbd2 a6 8.a3 Qc7 9.Rc1 Nbd7 10.Be2 0-0 11.0-0 Re8 12.Qc2 e5 13.cd5 Nd5 14.Bc4 N7b6 15.Bb3 Bf5 16.e4 Be4 17.Ne4 ed4 18.Bd4 Bd4 19.Nd4 a5 20.Rfe1 a4 21.Ba2 Red8 22.Nf3 Nf4 23.Nfg5 Nd3 24.Bf7 Kg7 25.Ne6 1–0. barborski – sailstudiopl, kurnik, 2012.

6.cd5 Qd5 7.Nc3 Qd8 8.Be2 c6 9.d4 Nbd7 10.a3 0-0 11.0-0 b5 12.Rc1 Nb6 13.Ne5 Qc7? (13...Bb7 14.Qc2+/-) 14.Nb1 (14.Nb5 Qb7 15.Nd6 Qb8 16.Rc6 Bb7 17.Nb7 Qb7+–) 14...Rd8? (14...Qb7!? 15.Nc6 Na4 16.Ba1+–) 15.Rc6 Qb8 16.Rc1 Nfd7?? 17.Nd7 Rd7 18.Nd2 e5? 19.de5 Nc4 20.Nc4 bc4? 21.Bc4?? Rd1-/+ 22.Rfd1 Be6 23.Be6 fe6 24.Rd2 Be5–+ 25.Be5 Qe5 26.Rcd1 Re8 27.g3 Qc3 28.Rd3 Qb2 29.R1d2 Qb1 30.Kg2 Rc8 31.Rd7 a6 32.R7d6 Qe4 33.Kg1? Rc1 34.Rd1 Rd1 35.Rd1 Qc2 36.Rd6 Qb1 37.Kg2 a5! 38.ba5 Qe4 39.Kf1 Qc4 40.Kg2 Qc5 41.Rb6 Qa5 42.Re6 Qa3 43.Re8 Kf7 44.Rh8 h5 45.Rh7 Kf6 46.Rc7 Qa8 47.Kf1 Qa6 48.Kg2 Qb6 49.Rc1 Kg5 50.h4 Kg4 51.Rd1? Qb7 52.Kg1 Kh3 53.Kf1 Qb5 54.Kg1 Qe2 55.Rf1 Qf3 56.e4 Qg2 0–1. Fournier,Frederic (1655) – mdcarmen, Active, 2006.

5.d4 d5

6.c4 c6 7.cd5 cd5 8.Be2 0-0 9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 Qb6 13.Qa5 (13.0-0!?=) 13...Qa5+= 14.ba5 Nc6 15.Ba3 Rd8 16.a6 (16.Bb5!? Bd7 17.Bc6 Bc6 18.Ke2=) 16...ba6-/+ 17.Na4 Ne4 18.0-0 Na5 (18...a5 19.Nc5-/+) 19.Nc5 (19.Nb6 Bb7+=) 19...Nc4 (19...Nc5 20.Bc5 Nc4-/+) 20.Bc1? (20.Bc4!? Nc5 21.Bd5 Rd5 22.Bc5+=) 20...a5 (20...Nc5 21.dc5 a5 22.Bd2–+) 21.Bc4 (better is 21.Ne4 de4 22.Ng5-/+) 21...dc4?? (better is 21...Nc5 22.Be2 Ne4-/+) 22.Ne4+/- a4 (22...Bb7!? 23.Nfd2 Be4 24.Ne4 f5+/-) 23.Ba3 Ba6 (23...Bb7 24.Nc5 Bf3 25.gf3+–) 24.Nc5 (24.Rb1 Ra8+–) 24...Bb5 25.Rb1 Rb8?! (25...Bc6+–) 26.Na4! c3 27.Nc3 1–0. Fournier,Frederic (1680) – evgkosulin (1615), ChessOK.com, 2012.

6.Be2 b6 7.Nbd2 Bb7 8.Nb3 Nc6 9.c4 (better is 9.c3!?+=) 9...dc4 10.Bc4 Qe7 (better is 10...Nb4!? 11.0-0 0-0+=) 11.b5+= Nb4 12.a3 Nbd5 13.0-0 0-0-0 14.Ne5 Kb8 15.a4 Ne4 16.Nc6 Bc6 17.bc6 f5 18.a5 Qd6 19.ab6 cb6 20.Bb5 Nc7 21.Ba3 Qd5 22.Ba6?? Na6-/+ 23.Rc1 Rc8 24.Qd3 Nc7 25.Rc4 e5 26.Rfc1 ed4 27.ed4 Nb5 28.Bc5 bc5 29.Nc5?? Nc5 30.Rc5 Qd4?? 31.Rb5 Kc7?? 32.Qg3 f4?? 33.Rb7+– Kd8 34.Qg5 Bf6 35.Rd7 Qd7? 36.Qf6+– Qe7 37.Rd1 Ke8 38.Qh8 Kf7 39.Qc8 f3 40.Rd7 fg2 41.Re7 Ke7 42.Qd7 Kf6 43.c7 Ke5 44.c8Q g5 45.Qce8 Kf4 (45...Kf4 46.Qe3#). xnajlepszyx (1615) – scorpionnn (1740), kurnik, 2012.

5.Be2 0-0

6.0-0 a6 7.c4 b5 8.d4 d6 9.a4 Bb7 (9...bc4 10.Bc4 Qe7 11.Nbd2+=) 10.ab5 ab5 11.Ra8 Ba8 12.Nc3 (12.cb5!? Nbd7 13.Nc3+/-) 12...bc4 13.Bc4 Nc6 14.b5 Na5 15.Be2 Nb7 16.Ng5 Qc8 17.Bf3 c5 18.Qa4 (better is 18.bc6!? Na5 19.d5+/-) 18...h6= 19.Nh3 g5 20.Bc6 cd4 21.ed4 Nh5 22.Rc1 g4 23.Ne4?? gh3–+ 24.Qd1 Nf4 25.Qg4 Ng6 26.Qh3-/+ Qd8 27.Qg3 d5 28.Bb7 Bb7 29.Nd6 Qe7 30.b6 Ba6 31.Ba3 Qg5 32.b7 Qg3 33.hg3 Bd4 34.Rc8 Bb7! 35.Rf8 Kf8 36.Nb7 Kg7 37.Nd6 Ne5 38.Nb5 Bb6 39.Bd6? Nd3 40.Kf1 Bf2 41.Ke2= Bg3 42.Kd3 Bd6 43.Nd6 Kf6 44.Ne8 (44.Ne8 Ke5 45.Ke2-/+). elsh1403 – bjargjo, kurnik, 2011.

6.0-0 Nh5 7.Bg7 Ng7 8.c4 d5 9.c5 c6 10.d4 Nd7 11.Nbd2 Re8 12.Qc2 e5 13.de5 Ne5 14.Ne5 Re5 15.Nf3 Re8 16.a4 Bg4 17.h3 Bf3 18.Bf3 Qe7 19.b5 Ne6 20.bc6 bc6 21.Rfc1 Ng5 22.Be2 Ne4 23.Bd3 Qg5 24.Be4 Re4 25.Rab1 Rc4 26.Qd1 Rc1 27.Qc1 Qe7 28.a5 Rd8 29.a6 Rd7 30.Rb8 Kg7 31.Qb2 f6 32.Rb7 Kf7 33.Rd7 Qd7 34.Qb7 Ke6 35.f3 Ke7 36.Kf2 Ke8 37.Qb8 Ke7? 38.Qg8+– Qe8 39.Qh7 Qf7 40.Qh4 Ke6? 41.Qb4 Qe7 42.g4 f5 43.gf5 gf5 44.h4 Qg7?? 45.Qb7+– Qa1 46.Qc8 Ke7 47.Qc7 Kf8 48.Qd6 Kg8 49.Qg6 Kf8 50.Qf5 Ke8 51.Qc8 Kf7 52.Qc7 Kg6 53.Qc6 Kf7 54.Qd5 Ke8 55.c6 Qb2 56.Kg3 Qg7 57.Qg5 Qc7 58.f4 Qc6 59.Qg8 Ke7 60.Qg7 Ke8 61.Qe5 Kf8 62.h5 Qc2 63.Qg5 (63.Qg5 Qd1 64.Qf5 Ke8 65.Kh4 Qe1 66.Kg5+–) 1–0. ejdrzej (1675) – hajek16 (1645), kurnik, 2012.

5.Be2 d5

6.0-0 a5 7.b5 c6 8.a4 c5 9.c4 b6 10.d4 0-0 11.Nc3 dc4 12.Bc4 Nd5 13.Qb3 Nc3 14.Bc3 Nd7 15.Ng5?? (15.d5 Bc3 16.Qc3 Nf6 17.de6 Be6+=) 15...h6?? (better is 15...Qg5 16.f4 Qf5–+) 16.Ne4+= Bb7 17.Nd6 Qb8 18.Nb7 Qb7 19.Rad1 Nf6 20.f3 Rad8? 21.Rfe1 Rd7 22.e4 Rfd8 23.e5 Nd5 24.Bd5 Rd5 25.Qb1?? cd4–+ 26.Bb2 Qb8 27.f4-/+ d3 28.Re3 Qc7 29.Red3 Qc5 30.Kh1 g5 31.Ba3?? Qc4 32.Rd5= Rd5 33.Rc1 Qf4?? 34.Rc8+– Bf8 35.Rf8 Kg7 36.h3 Rd3?? 37.Rc8 Ra3–+ 38.Qb2 Qb4?? 39.Qc2?? Ra1 40.Kh2 Qf4 41.g3 Qf5 42.Rc3? Qe5–+ 43.Rf3 f5 44.Rd3 Ra4?? 45.Qc7?? Kg6 46.Qc2 Rd4 47.Rc3 Qd5 48.Re3 Rd2 49.Re2 Rc2 50.Rc2 Qb5 51.Re2 a4 52.Re6 Kf7 53.Rh6 a3 54.Rd6 a2 (54...a2 55.Rd1 Qe2 56.Kg1 Qd1 57.Kf2 Qd2 58.Kf3 a1Q 59.h4 Qac3) 0–1. elsh1403 (1620) – flakpremium (1675), kurnik, 2011.

6.0-0 Kf8 7.a4 Qe7 8.Ba3 Kg8 9.b5 Qd7 10.Ne5 Qd8 11.f4 Nfd7 12.c4 (12.d4!?+/-) 12...Ne5= 13.fe5 Be5 14.Ra2 h5 15.cd5 Qd5 16.Rc2 c6 17.Rc5 Qe4? (better is 17...Qd6 18.Rc6 Bh2 19.Kh1 bc6 20.Bd6 Bd6+/-) 18.Bf3+– Qf5 19.Bc6 Qg5 20.Qf3 f5 21.Bb7 Bb7 22.Qb7 Qh4 23.Rc8 (23.Rc8 Qd8 24.Rd8; 23.Qa8?? Bh2 24.Kh1 Bg3 25.Kg1 Qh2) 1–0. elsh1403 – perchentiany, kurnik, 2011.

4.e3 Nh5

5.c3 0-0 6.Be2 d6 7.0-0 Nf6 8.c4 Bg4 (8...Nc6 9.Qb3=) 9.h3+= Bf3 (9...Bf5 10.Nc3+=) 10.Bf3+– (worse 10.gf3 c5=+) 10...c6 11.d4 (11.Qb3 Nbd7+–) 11...Nbd7 12.Nd2 (12.Qb3 e5+–) 12...e5+= 13.b5 ed4 14.bc6 de3 (14...bc6!? 15.ed4 d5+=) 15.cb7 (worse 15.cd7 ed2 16.Qd2 Nd7 17.Bg7 Kg7 18.Qd6 Rc8 19.Qd4 Nf6 20.Qa7 Rc4+=) 15...ef2 16.Rf2 Rb8 17.Nb3 (17.Ne4 Ne4 18.Be4 Nc5+–) 17...Ne5 18.Rc1 (18.c5!? Nfd7 19.c6 Nf3 20.Qf3 Bb2 21.Rb2 Qb6 22.Kh2+=) 18...Nf3 19.Qf3 Rb7?? (better 19...Nd7 20.Bg7 Kg7+–) 20.Qb7+– Qb6 (20...Nh5+–) 21.Qb6 ab6 22.Bf6 Bf6 (22...Rc8 23.Bg7 Kg7 24.Rd2+–) 23.Rf6 1–0. Pierre – Mirrimond, internet, 2020.

5.Be2?? Bb2–+

6.Nc3 Ba1 7.Qa1 0-0 8.Ne4 Ng7 9.0-0 d5 10.Ng3 Qd6 11.h4 (11.Qc3 Bg4–+) 11...Be6 12.h5 Nc6 13.h6 Nf5 (better is 13...Ne8 14.b5 Nb8–+) 14.Nf5+– f6 15.Nd6 ed6 16.b5 Ne5 17.Ne5 f5 1–0. horacyad2010 – gucio300 (1615), kurnik, 2011.

6.Nc3 Ba1 7.Qa1 0-0 8.Ne4 Ng7 9.Ng3 b6 10.Nh4 Bb7 11.0-0 d6 12.f4 e5 13.fe5 (13.Nf3 ef4 14.ef4 Re8–+) 13...Qh4 14.ed6 cd6 15.Rf4 Qe7 16.Rh4 (16.Qc3 Nd7–+) 16...Nd7 (16...Qh4 17.a3–+) 17.Bd3 (17.Rf4 Ne6 18.Rf2 Rac8–+) 17...Qf6 (17...Qh4 18.b5–+) 18.Qd1 Ne5 19.Rh3 Nd3 20.cd3 a5 21.Ne2 ab4 22.Nd4 Bd5 23.Qb1 Ra2 24.Qb4 Ra1 (24...Ra1 25.Qb1 Rb1) 0–1. horacyad2010 – burza56, kurnik, 2011.

5.Bg7 Ng7

6.c4 d6 7.b5 Be6 8.d4 c6 9.a4 cb5 10.ab5 a6 11.Be2 Nd7 12.ba6 Ra6 13.Ra6 ba6 14.Qa4 0-0 15.Qa6 Qb6 16.Qb6 Nb6 17.d5 Bf5 18.0-0 Rc8 19.Nbd2 Ne8 20.e4 Bg4 21.h3 Bf3 22.gf3 Nf6 23.Rb1 Na4 24.Rb4 Nc3 25.Bf1 Nd7 26.f4 Nc5 27.f3 Ra8 28.Nb3 Ra3 29.Nc5 dc5 30.Rb8 Kg7 31.Rc8 Nd1 32.Bg2 Ne3 33.Rc5 Ra2 34.Bh1 Rc2 35.Rc7 Nc4 36.Rc6 Rc1 37.Kh2 Rc2 38.Kg3 Rc1 39.Bg2 Rc2 40.e5 h5 41.h4 Ne3 42.Rc2 Nc2 43.Bf1 Ne3 44.d6 Nf1 45.Kf2 ed6 46.ed6 Kf6 47.Kf1 Ke6 48.Kf2 Kd6 49.Ke3 Ke6 50.Ke4 f6 51.Kd4 Kd6 52.Ke4 Ke6 53.Kd4 Kf5 54.Ke3 g5 55.fg5 fg5 56.hg5 Kg5 57.f4 Kf5 58.Kf3 Kg6 59.Kg3 Kh6 60.Kh4 Kg6 61.f5 Kh6 62.f6 Kg6 63.f7 Kf7 64.Kh5 ½–½. Abdullaevich (1655) – ege2783, lichess.org, 2018.

6.c4 d6 7.Nc3 a5 8.b5 b6 9.Be2 Nd7 10.0-0 e5 11.d4 ed4 12.Nd4 0-0? (better 12...Bb7+/-) 13.Bf3+- Re8?? (13...Rb8 14.Nc6 Qh4+-) 14.Ba8 Ne5 15.Bf3 Nc4 16.Nc6 Qd7 (16...Qg5 17.Bd5 Be6+-) 17.Qb3 (better 17.Nd5 Kf8 18.Nf6+-) 17...Nd2 18.Qd1 Nf1?? (18...Nc4 19.Nd5 Kh8+-) 19.Qf1+- Qf5 (19...Ne6 20.Nd5 Kg7 21.Rc1+-) 20.g3 (better 20.Nd5 Qg5 21.Nc7+-) 20…Qf3=+ 0-1. SlavChernus (2035) - almasssss (2410), Casual Bullet game, lichess.org, 2022.

6.d4 0-0 7.Bd3 d6 8.0-0 Nc6 9.b5 Nb4 10.Be2 Nd5 11.c4 Nf6 12.Nc3 b6 13.d5 e6 14.Qd2 e5 15.e4 Bg4 16.h3 Bd7 17.Rfd1 Qc8 18.Qe3 Ngh5 19.Nd2 Nf4 20.Bf1 a6 21.a4 ab5 22.ab5 Ra1 23.Ra1 Kg7 24.Ne2 Ne2 25.Be2 h5 26.Qa3 Nh7 27.Qa6 Qd8 28.Qb7 Qg5 29.Qc7 Bh3 30.f4 Qg2# 0–1. mihai740609 – jerzyslowik, kurnik, 2012.

6.d4 b6 7.b5 Bb7 8.Be2 d6 9.0-0 e6 10.c4 Qd7 11.Nc3 Qe7 12.Qc2 Nd7 13.Rac1 e5 14.d5 Nc5 15.Na4 Na4 16.Qa4 Nf5 17.Qc2 a6 18.a4 ab5 19.cb5 0-0 20.Qc7 Qc7 21.Rc7 Rab8 22.Rfc1 Rfd8 23.e4 Nd4 24.Nd4 ed4 25.f3 Rf8 26.Kf2 f5 27.Bd3 fe4 28.Be4 Ba8 29.R1c4 Rbe8 30.Rd4 Kh8 31.Rdc4 Kg8 32.Rd7 Rd8 33.Rcc7 Rde8 34.Rg7 Kh8 35.Rh7 Kg8 36.Rcg7# 1–0. mihai740609 – ikaivan, kurnik, 2012.

6.d4 b6 7.c4 Bb7 8.Be2 d6 9.0-0 Nd7 10.Nbd2 e6 11.Rc1 Qe7 12.a3 h5 13.Nb3 h4 14.Re1 f5 15.Bd3 g5 16.d5 ed5 (16...0-0-0!?+=) 17.cd5+/- Bd5 18.Rc7 g4 19.Nfd4 (19.Bb5!? Bf3 20.gf3 gf3 21.Qf3 Rd8+–) 19...g3+/- 20.fg3 (worse is 20.Nf5 gh2 21.Kh2 Nf5 22.Rd7 Qd7+= (22...Kd7 23.Bf5 Be6 24.Nd4 Bf5 25.Qa4 Kd8 26.Nc6 Ke8 27.Ne7 Ke7 28.Rc1+–); 20.Bf5 gh2 21.Kh1 h3 22.Bh3 Rh3-/+) 20...hg3 21.h3 Qh4?? (better is 21...Kd8 22.Qc2 Qf6+/-) 22.Bf5+– Bg2 23.Qc2 Bh3 24.Bg6?? Kf8?? 25.Rd7?? Bd7+/- 26.Rf1 Ke7?? 27.Qe4 Be6?? 28.Rf7 Kd8 29.Nc6 Kc8+/- 30.Ne7 Kb8 31.Nc6 Kc8 32.Ne7 Kd8?? 33.Nc6 Kc8= ½–½. lican – czeg0ochc3sz, kurnik, 2012.

6.d4 e6 7.c4 Qe7 8.Nbd2 Qb4 9.Be2 0-0 10.0-0 d5 11.Qc2 dc4 12.Nc4 Qe7 13.Nce5 Nc6 14.Nc6 bc6 15.Qc6 Bd7 16.Qc2 Rac8 17.Rfc1 a5 18.Ne5 c6 19.Bf3 Nf5 20.Nd7 Qd7 21.Bc6 Qe7 22.Qa4 Qg5 23.Be4 Nh4 24.g3 Nf5 25.Bf5 Qf5 26.Rc6 Rc6 27.Qc6 Kg7 28.Rc1 h5 29.Qc5 Qe4 30.Qa5 Qd3 31.Qc3 Qa6 32.a3 Ra8 33.d5 Kh7 34.de6 Qe6 35.Ra1 Qf5 36.Qc6 Ra5 37.a4 Qf6 38.Rc1 Qb2 39.Rc5 Qa1 40.Kg2 Ra4 41.Qf3 Ra7 42.Qe4 Kg7 43.Qe5 Qe5 44.Re5 Ra2 45.h4 Kf6 46.Re4 Kf5 47.Rf4 Ke6 48.Rb4 Ra6 49.Kf3 Kf6 50.Kf4 Kg7 51.f3 Rf6 52.Ke4 Re6 53.Kd3 Ra6 54.f4 Ra3 55.Ke4 Re3 0–1. barborski – mocau, kurnik, 2012.

6.Be2 0-0 7.0-0 c6 8.d4 d5 9.c4 e6 10.a4 a5 11.b5 cb5 12.cb5 b6 13.Nc3 Nd7 14.e4 Nf6 15.e5 Ne4 16.Ne4 de4 17.Nd2 Bb7 18.Nb3 Qd5 19.Rc1 Rac8 20.Rc8 Rc8 21.Na1 Rd8 22.Nc2 Rc8 23.Qd2 Nf5 24.Rd1 Qb3 25.Rc1? Rc4?? 26.g4?? e3? 27.fe3+/- Ne3? 28.Bc4 Nc4 29.Qf2 Qb2? 30.Rf1 f5 31.ef6 Kf7 32.Ne3 Qd4 33.Re1?? Ne3+= 34.Re3 Qg4 35.Rg3 Qd1-/+ 36.Qf1 Qd4 37.Qf2 Qd1 38.Qf1 Qd4 39.Qf2 Qd1 ½–½. elsh1403 – slihuatamanio (1630), kurnik, 2011.

6.Be2 0-0 7.0-0 d5 8.d3 a5 9.b5 c5 10.Nbd2 a4 11.a3 Nf5 12.c4 e6 13.Qc2 Nd6 (13...d4 14.Ne4+=) 14.Rac1 b6 15.h3 Nd7 16.d4 dc4 17.Nc4 Nc4 18.Qc4 Bb7 19.Rfd1 Bd5 20.Qc3 Rc8 21.Qb2 Bb3 22.Re1 c4? 23.Nd2+– Qg5 24.Nc4 Bc4 25.Rc4 Nf6 26.Rec1 Rc4 27.Rc4 Ne4 28.Bf3 Nd6 29.Rc6 Nf5? 30.Rb6 Nh4 31.Bc6 Rc8 32.g3 Nf5 33.Bg2 Ne3 34.fe3 Qe3 35.Kh2 Rc3 36.Rb8 Kg7 37.d5 Qg3= 38.Kh1 Qe1-/+ 39.Kh2 Qg3 40.Kg1 Qe1 41.Bf1 Qg3 42.Qg2?? Qg2 43.Bg2+– Ra3 44.b6 ed5? 45.Bd5 Rb3 46.b7 h5 47.Ra8 (47.Ra8 Rb1 48.Kf2 Rb2 49.Ke1 Rb1 50.Kd2+–) 1–0. ejdrzej (1715) – mietz, kurnik, 2012.

6.Be2 0-0 7.a3 b6 8.c4 Bb7 9.d3 Ne6 10.Nbd2 c5 11.b5 d5 12.0-0 dc4 13.dc4 Qc7 14.Qc2 Nd7 15.a4 Nf6 16.Rfe1 Ng7 17.Nf1 Ng4 18.Ng3 Nh5 19.h3 Ng3 20.fg3 Ne3 21.Qb3 Nf5 22.g4 Nd4 23.Nd4 cd4 24.Qd3 Rad8 25.Rf1 Qc5 26.Bf3 Bf3 27.Rf3 Rc8 28.Rc1 e5 29.Kh1 Rfe8 30.Rcf1 Rc7 31.Rc1 e4 32.Qe2 d3 33.Qe1 e3 34.Qd1 e2 35.Qe1 Rd7 36.Qe2 de2 0–1. eliton – wojtek2514, kurnik, 2012.

6.Be2 b6 7.d4 Bb7 8.0-0 Nc6 9.Nbd2 (better is 9.c3!?+/-) 9...Nb4= 10.a3 Nc6 11.c4 d6 12.Qb3 0-0 13.Qc3 Nb8 14.Nb3 Nd7 15.Rfd1 Re8 16.h3 e6 17.a4 Qf6 18.a5 c5 19.a6 Bc6 20.Rac1 Nb8 21.d5 ed5?? 22.Qf6+– dc4 23.Bc4 b5 24.Bf7 (24.Bf7 Kh8 25.Be8+–) 1–0. mihai740609 – madp, kurnik, 2011.

6.Be2 c6 7.Nc3 Qc7 8.Rb1 d6 9.0-0 Be6 10.Nd4 Bf5 11.b5 c5 12.Nf5 Nf5 13.b6 ab6 14.Nd5 Qc6?? (better is 14...Qd8 15.Rb6 0-0 16.Rb7 e6+/-) 15.Bb5+– (15.Bb5 0-0 16.Bc6 bc6 17.Nb6 Ra2 18.c3+–) 1–0. fryckh – jaqufe, internet, 2017.

6.Be2 d6 7.Nc3 Nd7 8.d4 0-0 9.0-0 f5 10.Qb1 e6 11.Qb3 d5 12.Na4 b6 13.c4 c6 14.cd5 cd5 15.Nb2 Bb7 16.Nd3 Ne8 17.Nf4 Qe7 18.Rfc1 Nd6 19.h4 Rac8 20.Ng5 Nf7 21.Nge6 Qh4 22.Nf8 Rf8 23.Rc7 Nf6 24.Rb7 Ne4 25.g3 Qf6 26.Ra7 Nfg5 27.Qd5 Kh8 28.Rc1 Nh3 29.Nh3 Nf2 30.Nf2 f4 31.Rcc7 fg3 32.Rh7 1–0. usingprogram (1985) – maneksmm13, kurnik, 2012.

4.e4 0-0

5.Bc4 Nc6 6.0-0 (6.b5 Na5 7.Bd3 d5 8.ed5 Qd5=) 6...Ne4 7.Bg7 Kg7 8.Re1 (8.b5 Na5+=) 8...d5 (8...Nd6 9.b5-/+) 9.Bd3 (9.b5 Na5 10.Bd3 Nf6+=) 9...Bf5 10.b5 Nb4 11.Nc3 (11.Nh4 Nd3 12.Nf5 gf5 13.cd3 Nd6-/+) 11...Nd3 12.cd3 Nf6 13.Ne5 Nh5 (better is 13...d4!? 14.Ne4 a6-/+) 14.g4+= Nf4 15.gf5+/- f6 16.Nf3 Qd7? (16...gf5 17.Nd4 Kh8 18.Qf3+/-) 17.Nh4 (better is 17.Nd4!? Kh8 18.Ne6 Nd3 19.Nf8 Rf8 20.Re3 Qf5 21.Qf3 (worse is 21.Re7 Qf2 22.Kh1 Qc5+/-) 21...Qf3 22.Rf3+–) 17...g5 (17...d4 18.Qf3 g5 19.Ne4 Qb5 20.Rab1+/-) 18.Qg4 Kh8 19.Kh1 (19.d4 a6 20.ba6 b5+–) 19...Nd3? (19...d4 20.Ne4 Qb5+=) 20.Re2?? (better is 20.Ng6 hg6 21.Qh3 Kg8 22.Qd3 gf5 23.Qd5 (23.Nd5?! Rad8=) 23...Qd5 24.Nd5+–) 20...gh4-/+ 21.Qh4?? Qf5–+ 22.Rf1 Qf3 23.Kg1 Rg8 24.Qg3 Rg3 25.fg3–+ Qe2 26.Ne2 Rg8 27.Nd4 Nc5 28.Ne6?? Ne6 29.Rc1 Rg4 30.Kf2 Rb4 31.Re1 Re4 32.Rc1 Kg7 33.d3 Rb4 34.Ke3 Rb5 35.Rc2 d4 36.Kf3 Rf5 37.Ke4 Kg6 38.Rb2 b6 39.Rc2 Nc5 40.Kd4 e5 41.Kc4 Rf3 42.Rd2 c6 43.d4 ed4 44.Kd4 f5 45.Ke5 Rd3 46.Rd3 Nd3 47.Kd6 c5 48.a3 c4 (48...c4 49.Kd5 c3–+) 0–1. Verns – djoule, internet, 2007.

5.d3 Nc6 6.b5 Nb8 7.g3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d5 11.e5 Ng4 12.Bg2 Nd7 13.d4 c5 14.0-0 cd4 15.Qd4 Nde5 16.Ne5 Be5 17.Qa4 Ba1 18.Qa1 Bf5 19.Rd1 e6 20.Qa4 Qb6 21.Rd2 Rc8 22.h3 Ne5 23.g4 Be4 24.Be4 de4 25.Qe4 Qb5 26.Na3 Qa5 27.Qb7 Qd2 28.Qc8 Kg7 29.Nb5 Qd1 30.Kh2 Qf3 31.Qc5 Qf4 32.Kg2 Qe4 33.Kf1 Qh1 34.Ke2 Qf3 35.Kd2 Qf4 36.Kc3 Qf3 37.Qe3 Qc6 38.Kb4 Qc4 39.Ka5 Nc6 40.Kb6 Qc2 41.g5 Qc4 42.f4 Ne7 43.Qe5 Kf8 44.Qb8 Qc8 45.Qd6 Qa8 46.Nc7 Qb8 47.Kc5 Qa7 48.Kc4 Qa4 49.Kc3 Qc6 50.Qc6 Nc6 51.Kc4 Ke7 52.Kc5 Kd7 53.Ne8 Ke8 54.Kc6 Ke7 55.Kc7 f6 56.gf6 Kf6 57.Kd6 h5 58.h4 Kf5 59.Ke7 Kf4 60.Ke6 Kg4 61.Kf6 Kh4 62.Kg6 Kg4 0–1. Wall,Bill – Shameson,Leon, Mt View, CA, 1987.

5.Qe2 d6 6.d4 Nbd7 7.e5 de5 8.de5 Ng4 9.h3 Nh6 10.Nc3 e6 11.Rd1 Nf5 12.Ne4 Qe7 13.Qc4 b6 14.g4 Nh6 15.g5 Nf5 16.Nf6 Bf6 17.gf6 Qe8 18.Qc7+– Qd8 19.Qc6 Rb8 20.Bg2 Bb7?? 21.Qd7 Be4 22.c3 a6 23.Rg1 Rc8 24.Nh4 Rc7 25.Qd8 (25...Rc8 26.Qd2 Nh4 27.Be4+–) 1–0. mrkt (2505) – GolfSuper, ChessWorld.net, 2003.

5.e5 Nh5 6.d4 f6 7.Bc4 e6 8.0-0 fe5 9.Ne5 Be5 10.de5 Nc6 11.b5 Na5 12.Be2 b6 13.Bh5 gh5 14.Qh5 Qe7 15.a4 Bb7 16.Ba3 Qg7 17.f3 Rf5 18.Qh4 Rg5 19.g3 Bd5 20.Nd2 Rg6 21.c4 Bb7 22.Rad1 Rh6 23.Qd4 Re8 24.Bb4 Qg6 25.c5 Qh5 26.Qf2 Bd5 27.g4 Qg6 28.cb6 cb6 29.Ne4 Be4 30.fe4 Qg4 31.Qg2 Qg2 32.Kg2 Rg6 33.Kh1 Nc4 34.Rd7 Ne3 35.Rff7 Rc8 36.Bd2 Nc4 37.Bb4 Ne5 38.Rc7 Rd8 39.h4 Rd1 40.Kh2 Nf7 41.Rc8 Kg7 42.Bf8 Kf6 43.e5 Ke5 44.h5 Rgg1 45.Rc2 Rh1 46.Kg2 Rdg1 47.Kf2 Rh2 48.Kg1 Rc2 49.Bg7 Kd5 50.h6 Ra2 0–1. Adjailton (1795) – roua (1775), lichess.org, 2020.

5.Bc4 Ne4

6.Bg7 Kg7

7.Nc3 Nc3 8.dc3 e6 9.0-0 d5 10.Be2 Nd7 11.c4 c6 12.Qd2 b6 13.Rfd1 Bb7 14.cd5 cd5 15.c4 Qe7 16.cd5 Bd5 17.Rac1 Rac8 18.a3 Rfd8 19.Qe3 Qf6 20.Rc8 Rc8 21.Rd4 Bf3 22.Bf3 Rc1 23.Bd1 Rc7 24.Qd2 Ne5 25.Be2 Qe7 26.f4 Nd7 27.Ba6 Nf6 28.Bc4 Rd7 29.g4 Rd4 30.Qd4 Qd7 31.Qd7 Nd7 32.g5 e5 33.Bb5 Nf8 34.fe5 Ne6 35.Kf2 Ng5 36.Bc4 Ne6 37.Ke3 Nc7 38.a4 h6 39.Ke4 Kf8 40.h3 Ke7 41.a5 f5 42.ef6 Kf6 43.Bf1 Ke6 44.Bc4 Kd6 45.Bf7 ba5 46.ba5 Kc5 47.Ke5 g5 48.Kf5 Nd5 49.Kg6 Nf4 50.Kh6 Nh3 51.Be6 Nf4 52.Bg4 Kb5 53.Kg5 Nd3 54.Be2 Ka5 ½–½. Andersson – LeClair, email 4AMM–05 1997.

7.Nc3 Nc3 8.dc3 e6 9.0-0 d5 10.Be2 Nd7 11.c4=+ Nf6 12.Qd4 dc4 13.Qc4 Qd5 (13...Nd5!?=+) 14.Qc7+= Bd7 (14...Qe4 15.Qc4=) 15.c4 Qc6 16.Qg3 Qa4 17.Rfd1 (17.a3!?+=) 17...Qb4= 18.Rab1 Qa4 (18...Qa3 19.Rb7 Qa2 20.Nd4=) 19.Rb7+= Qa2 20.Qe5 Bc6 21.Rc7 Rfc8 22.Rf7 (22...Kf7 23.Ng5 Kg7 24.Ne6 Kg8 25.Qf6+–) 1–0. Gorski,Alan C – Finical,Michael Paul, IECG Cat–C, 1996.

7.Nc3 Nc3 8.dc3 e6 9.0-0 d5 10.Be2 Qf6 11.c4-/+.

7.d3 Nf6 8.Nc3 e6 9.0-0 d5 10.Bb3 Nc6 11.b5 Ne7 12.Ne5 d4 13.Ne2 Nfd5 14.f4 Ne3 15.Qd2 Nf1 16.Rf1 f6 17.Ng4 c5 18.f5 Nf5 19.Rf5 ef5 20.Qh6 Kh8 21.Nf4 Qe8 22.Qh3 Qe1 0–1. Adjailton (1850) – miespet (1785), lichess.org, 2019.

5.Be2 Ne4

6.Bg7 Kg7 7.0-0 d5 8.d3 Nd6 9.Qd2 Be6 10.Nc3 Nc6 (10...Nd7 11.d4=+) 11.b5= Nb8 12.Rfe1 a6 13.a4 Nd7 14.Nd4 Nf5 (14...Nf6 15.Bf3 Qd7 16.Qe3=) 15.Nf5 Bf5 (15...gf5 16.Bf3 Nf6 17.Qg5 Kh8 18.a5=) 16.Nd5+= Be6 17.Qc3 Nf6 (better is 17...Kg8!? 18.Nc7 Rc8 19.Ne6 Rc3 20.Nd8 Rd8+/-) 18.Nc7+– Rc8 19.Ne6 fe6 20.Qb2 Kg8 21.Bf3 b6 (21...Qd7+–) 22.ba6 Rc7 (22...Nd5 23.Bg4 Nf4 24.Be6 Ne6 25.Qb3+–) 23.Qb6 Rc2 (23...Qd6 24.Qd6 ed6 25.Re6+–) 24.Qe6 Kh8 25.a7 (25...Qa5 26.Qe7+–; < 25.Qe7 Re8 26.Qd8 Rd8+–) 1–0. Double Wood – nandy conure, ChessWorld.net, 2005.

6.Bg7 Kg7 7.0-0 d5 8.d3 Nf6 9.Qd2 Bg4 10.h3 Bf3 11.Bf3 e6 12.Nc3 Nc6 13.b5 (13.d4 Nb4 14.Rfb1 c5 15.dc5 Na6 16.Rb7 Nc5-/+) 13...Nd4 14.a4 (14.Be2!?-/+) 14...Nf3–+ 15.gf3 Nh5 16.Kh2 Qh4 17.Rg1 Rac8 18.Rg4 Qf6 19.Ne2?? (19.f4 c6 20.Rb1 Qd4–+) 19...c6 (better is 19...Qa1 20.c3 Nf6–+) 20.Rag1 cb5 21.ab5 Rc5 22.Nf4 Nf4 23.Rf4 Qe5 24.Kh1 Rb5 25.Rh4 h5 26.Rg5 Rb1 27.Kg2 Qe1 28.Qe1 Re1 29.Rhh5 Kf6 30.Rd5 ed5 31.Rd5 Rc8 32.c4 Rc7 33.h4 Ke6 34.h5 gh5 35.Rh5 Rd7 36.Rh6 Ke7 37.c5 Rd3 38.c6 bc6 39.Rc6 Rd7 40.Ra6 Re2 41.Kg3 Kf8 42.f4 Rb2 43.f3 Rb6 44.Ra5 a6 45.Kg4 Ra7 46.f5 Rb5 47.Ra4 a5 48.f4 Rb4 49.Ra3 Ke7 50.Kg5 Ra6 51.Re3 Kf8 52.f6 Rb5 53.f5 a4 54.Rc3 Rb8 55.Ra3 Rb3 56.Ra2 a3 57.Rh2 Rg3 58.Kf4 Rg8 59.Ra2 Rf6 60.Ra3 Rg1 61.Ke5 Rb6 0–1. erisonpassos – szaszki2 (1715), kurnik, 2011.

5.e5 Nd5

6.a3 c6 7.d4 d6 8.Nc3 Qc7 9.Nd5 cd5 10.Bd3 Bg4 11.ed6 Qd6 12.0-0 Nc6 13.Be2 Rac8 14.h3 Bf3 15.Bf3 e6 16.Qd3 Rc7 17.Rac1 a6 18.c4 dc4 19.Rc4 b5 20.Rc6 Rc6 21.Bc6 Qc6 22.Rc1 Qd5 23.Rc5 Qa2 24.Qc2 Rd8 25.Qc1 Bd4 26.Bd4 Rd4+= 27.Rc8 Kg7 28.Qc5 Rd1 29.Kh2 Qd2 30.Qf8 Kf6 31.Qh8 Kg5 32.h4 Kg4 33.f3 Kh4 34.Qf6 Qg5 35.g3 Kh5 36.Rc5 Rd5 37.Qf7 Qd2 38.Kh3 Rc5 39.bc5 Qc1 40.g4 Kh6 41.Qf8 Kg5 42.f4! Qf4 43.Qf4 Kf4 44.c6 1–0. Ehrlich,Stefan – Mosley,Gene, 2005.

6.a3 d6 7.c4 Nb6 8.Qb3 Nc6 9.e6 Bb2 10.ef7 Rf7 11.Qb2 e5 12.Nc3 Be6 13.d3 Bg4 14.Be2 Rb8 15.0-0 Bf3 16.Bf3 Nd4 17.Bd1 Nd7 18.a4 a5 19.Nb5 Nf5 20.Bg4 ab4 21.Bf5 Rf5 22.d4 ed4 23.Nd4 Qf6 24.Rab1 Rf4 25.Rfd1 Rf8 26.Rd2 Nc5 27.Nb5 Qf7 28.Re1 Na4 29.Qb4 Rf2 30.Rdd1 Nb2 31.Rb1 Nd3 32.Qc3 Rg2 33.Kg2 Qf3 0–1. Ivanets,V – Zhidkov,Valery S, Moscow, 1995.

6.a3 d6 7.c4 Nb6 8.d4 Be6 9.d5 Bg4 10.Nbd2 de5 11.Be2 e4 12.Ne4 Bb2 13.Rb1 Bg7 14.Qb3 Bf3 15.Bf3 c6 16.dc6 Nc6 17.0-0 f5 18.c5 Kh8 19.cb6 fe4 20.Be4 Qb6 21.Rbd1 Rad8 22.Rc1 Nd4 23.Qh3 Nf5 24.Rc3 Bc3 25.Qc3 Qd4 26.Qc2 Rc8 27.Qb1 b6 28.a4 Rc4 29.Bf5 Rf5 30.Rd1 Qf2 31.Kh1 Rcf4 32.Qa1 Kg8 33.Rd8 Rf8 34.Rf8 Rf8 35.h3 Qf1 36.Qf1 Rf1 37.Kh2 Ra1 38.a5 ba5 39.ba5 Ra5 0–1. Adjailton (1865) – Gevorg22 (1730), lichess.org, 2020.

6.a3 d6 7.c4 Nb6 8.d4 Bg4 9.Nbd2 de5 10.de5 a5 (10...c5 11.h3 Bf3 12.Nf3=) 11.Be2 ab4 (11...N6d7 12.b5=) 12.ab4 Ra1 13.Ba1 (13.Qa1 f6+=) 13...Nc6 (13...N6d7 14.0-0=) 14.Qb3 (14.b5!? Nb4 15.Bd4+=) 14...Nd7+= Will e5 fall? 15.b5 (15.0-0 Nde5 16.b5 Nd4 17.Bd4 Nf3 18.Nf3 Bd4+=) 15...Nce5 16.Ne5 (16.0-0 c6+=) 16...Be5 17.Be5 (17.Bg4 Ba1 18.0-0 Nc5+=) 17...Ne5 18.f3 (18.Bg4 Ng4 19.Nf3 Qd6+=) 18...Bf5-/+ 19.g4 (better is 19.Qe3!? Nd3 20.Bd3 Qd3 21.Qd3 Bd3 22.Kf2-/+) 19...Nd3–+ 20.Kf1 (20.Bd3 Bd3 21.Qc3 Qd6–+) 20...Qd4 (20...Qd4 21.Bd3 Bd3 (21...Qd3?! 22.Qd3 Bd3 23.Kf2+=) 22.Kg2 Be2–+) 0–1. Ossa,Orlando (2290) – Rios,Cristhian Camilo (2175), Final Mayores Absoluto Valle, 2009. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e4 0-0 5.e5 Nd5)

6.a3 d6 7.c4 Nf4 8.d4 de5 9.d5 c6 10.Ne5 cd5 11.cd5 Bf5 12.Bc4 Ng2 13.Kf1 Bh3 14.Qf3 Ne3 15.Ke2 Nc4 16.Nc4 Bb2 17.Nb2 Bf5 18.Nd2 Nd7 19.Rag1 Bc2 20.h4 Ne5 21.Qg2 h5 22.f4 Ng4 23.Nbc4 Bf5 24.Ne3 Ne3 25.Ke3 Qb6 26.Ke2 Qd4 27.Nf3 Qd3 28.Ke1 Qe3 29.Kf1 Bd3 0–1. Adjailton (1835) – nystou (1720), lichess.org, 2019.

6.a3 d6 7.Bc4 Nb6 8.Bb3 (8.Bb5 de5 9.0-0 e4 10.Bg7 Kg7-/+) 8...Bg4 (8...Nc6 9.Qe2=) 9.h3=+ Bf3 10.Qf3 Nc6 11.b5 Na5 12.d4 (12.Bc3 Nb3 13.cb3 Rb8=+) 12...de5 13.de5 Nbc4 14.Bc4 Nc4 15.Bc3 Be5 (15...Ne5 16.Qe4 Qd6 17.Qb7=+) 16.Be5= Ne5 17.Qe4 Nd7 (17...Qd6!?-/+) 18.Qb7= Nc5 (18...Rb8 19.Qd5=) 19.Qf3=+ Qd4 20.Qc3 Qe4 21.Kf1 Rfd8 22.Nd2 Qd4 (22...Qa4!? 23.Qc5 Rd2=+) 23.Qd4+= Rd4 24.Nf3 Rc4 25.Ra2 (25.Re1 e6 26.Re2 Rb8-/+) 25...Na4 (25...Rb8 26.a4=) 26.g3 (26.Ne5 Rc5 27.Nc6 Rb5 28.Ra1=+) 26...Nc3=+ 27.Rb2 Rc5 (27...Rb8 28.Ke1=+) 28.Kg2 (28.Rb3 Nb5 29.Kg2 a6-/+) 28...Nb5 (28...Rb5 29.Rb3 Rb3 30.cb3=+) 29.a4 (29.Rb3 Rd8=+) 29...Nc3-/+ 30.Ra1 a5 (30...Rd8 31.Re1=+) 31.Nd2 (31.Rb7!?-/+) 31...Rd8–+ 32.Nf1 Rd4 33.Ne3 Ra4 34.Ra4 Na4 35.Ra2 Nc3 36.Ra3 Kf8 37.h4 h5 38.Kf1 Ke8 39.Ke1 Kd7 40.f4 Kc6 (41.g4 hg4 42.Ng4 Kd7–+) 0–1. Nilsson,Nils Roland – Staberg,Karl Arne, corr SSKK 2–782, 1994.

6.a3 d6 7.d4 de5 8.Ne5 Nb6 9.f4 Bf5 10.Be2 N8d7 11.0-0 Ne5 12.fe5 Na4 13.Ra2 Nb2 14.Rb2 f6 15.Bc4 Kh8 16.e6 Qd6 17.Re1 c6 18.c3 b5 19.Bb3 Bb1 20.Qb1 a5 21.Rf2 Ra7 22.g3 f5 23.Qb2 Bh6 24.Kg2 Rfa8 25.Rf3 Ra6 26.Rff1 ½–½. Rosner,Dirk – Hartmann,Wolfgang, corr, 1998.

6.b5 d6 7.c4 Nb6 8.Be2 N8d7 9.d4 c6 10.a4 a5 11.0-0 c5 12.dc5 Nc5 13.Qc2 Bf5 14.Qc3 Nba4 15.Ra4 Na4 16.Qb3 Nb2 17.Qb2 Bb1 18.Rb1 de5 19.Qc2 Qc7 20.c5 Rac8 21.Rc1 b6 22.c6 f5 23.Ng5 Rf6 24.Qc4 e6 25.Ne6 Qf7 26.Ng7 Qc4 27.Bc4 Kg7 28.Rd1 Rf7 29.h4 Re7 30.Rd6 e4 31.Kf1 e3 32.f3 Kf8 33.Ke2 Ke8 34.Be6 Rd8 35.Rd8 Kd8 36.Bd7 Rd7 37.cd7 Kd7 38.Ke3 Kd6 39.Kd4 a4 40.Kc4 a3 41.Kb3 Kc5 42.Ka3 Kb5 43.Kb3 Kc5 44.g4 b5 45.gf5 gf5 0–1. Abdullaevich (1845) – john465 (1710), lichess.org, 2018.

6.b5 d6 7.d4 Bf5 8.c4 Nb4 9.Na3 de5 10.Bc3 Bc2 11.Nc2 (11...Nc2 12.Qc2 ed4 13.Rd1+–) 1–0. Bell,Alexander – Madmardigan, compuserve, 1998.

5.e5 Ne8

6.d4 e6 7.Be2 d6 8.0-0 de5 9.de5 Qd1 10.Rd1 b6 11.b5 Nd7 12.a4 Nc5 13.Nbd2 Bb7 14.Nb3 Nb3 15.cb3 c6 16.bc6 Bc6 17.Ba3 Bf3 18.Bf3 Rc8 19.Bf8 Kf8 20.Rd7 Be5 21.Ra7 Ba1 22.g3 Rc3 23.b4 Rf3 24.a5 ba5 25.ba5 Bd4 26.Rd7 e5 27.Kg2 Rf2 28.Kh3 Ra2 29.a6 Ra6 30.Kg4 h5 31.Kg5 Be3 32.Kh4 Ra4 33.Kh3 Nf6 34.Rd8 Kg7 35.Rd3 Ng4 36.Kg2 e4 37.Rd7 Ra2 38.Kf1 Nh2 39.Ke1 Nf3 40.Kd1 Rd2 41.Kc1 Rd7 42.Kc2 h4 0–1. Adjailton (1905) – Atteagen (1785), lichess.org, 2020.

6.d4 d6

7.Bc4 a5 8.b5 c6 9.bc6 bc6 10.0-0 c5 11.dc5 Ba6 12.Ba6 Na6 13.cd6 ed6 14.Nc3 de5 15.Qd8 Rd8 16.Nb5 e4 17.Bg7 Kg7 18.Ne5 Nb4 19.c3 Nd3 20.Nd3 ed3 21.Rfd1 Nf6 22.Nd4 Ne4 23.Rd3 Nc3 24.Rc3 Rd4 25.Ra3 a4 26.g3 Rfd8 27.Kg2 h5 28.Rb1 f6 29.Rb7 Kh6 30.Ra7 g5 31.R3a4 g4 32.Rd4 Rd4 33.a4 Kg5 34.a5 h4 35.gh4 Kh4 36.a6 f5 37.Rh7 Kg5 38.a7 f4 39.Rh8 f3 40.Kg3 Rd1 41.Rg8 Kf5 42.Rg4 Rg1 43.Kf3 Rg4 44.a8Q Rf4 45.Ke3 1–0. Adjailton (1885) – HistoriaAnimalium (1785), lichess.org, 2019.

7.Nbd2 a5 8.b5 Nd7 9.e6 fe6 10.Ng5 Ndf6 11.Bd3 c5 12.h4 cd4 13.h5 Bh6 14.Nh7 Kh7 15.Bd4 Kg7 16.Qg4 g5 17.Qe4 Rh8 18.Qg6 Kf8 19.Nf3 Ng7 20.Be3 Qe8 21.Bg5 Qg6 22.hg6 Ngh5 23.g4 Bg5 24.gh5 Bf4 25.g7 Kg7 26.Rg1 Kf8 27.Nh4 Rg8 28.Rh1 Ke8 29.Ng6 Bh6 30.f4 b6 31.0-0-0 e5 32.Rde1 Bf4 33.Kb1 Bh6 34.Bc4 Rg7 35.Rhf1 Bg4 36.Bd5 Rc8 37.Bc6 Bd7 38.Ne7 ½–½. Gamm – Sloan, 1962.

7.Nbd2 Bf5 8.a3=.

7.Nbd2 Bg4 8.Be2 a5 9.ba5 (9.b5 c6=) 9...c5 (9...de5 10.Ne5 Be2 11.Qe2 Ra5 12.0-0=) 10.dc5+= Nc6 (10...de5 11.Ne5 Be2 12.Qe2 Qa5 13.Bd4+=) 11.cd6 (11.a6 ba6 12.cd6 ed6+=) 11...ed6+= 12.a6 ba6 13.Nc4 Rb8 14.Qd5 Bf3 15.Qf3 Ne5 16.Be5 de5 17.Rd1 Qe7 18.0-0 Nc7 19.Rd6 Ne6 (19...Nb5 20.Ra6 Nd4 21.Qe3 Nc2 22.Qe4=) 20.Qe3 Rfc8 21.Ra6 Nf4 22.Qf3 Qc7 (23.Bd3 h6+=; 22...Qh4 23.Nd6 e4 A) 24.Qe4? Re8 25.Qf3 Ne2 (25...Re2?! 26.g3 Qg5 27.Qf4 Qf4 28.gf4=) 26.Kh1 Re7–+; B) 24.Ne4 Rc2 25.Bd1+/-). Chess Machine – Dunne,A, corr, 1992.

7.Be2 Bg4 8.0-0 Bf3 9.Bf3 c6 10.c4 de5 11.de5 Qd1 12.Rd1 e6 13.b5 a6 14.bc6 bc6 15.Nd2 Ra7 16.Ne4 Nc7 17.Nd6 Nd7 18.Rab1 Be5 19.Be5 Ne5 20.Be4 f5 21.Bc2 Nf7 22.Nf7 Rf7 23.Ba4 c5 24.Rd8 Kg7 25.Rbb8 h5 26.h4 Kf6 27.f4 e5 28.fe5 Ke5 29.Rg8 Kf6 30.Rb6 Ne6 31.Be8 Rf8 32.Rg6 Ke7 33.Rge6 Kd8 34.Rb8 Kc7 35.Reb6 Re8 36.Re8 Kb6 37.Re5 Rf7 38.Re6 Ka5 39.Rh6 Kb4 40.Rh5 Kc4 41.Rh6 a5 42.h5 Kd5 43.Rb6 Kc4 44.h6 Rh7 45.Kf2 Kd4 46.Kf3 c4 47.Kf4 c3 48.Kf5 c2 49.Rc6 c1Q 50.Rc2 Qc2 0–1. Adjailton (1870) – POD_NAPolandE (1605), lichess.org, 2021.

5.e5 Ng4

6.d4 c6 7.Bc4 (7.Bd3 d6+=) 7...Qb6 8.c3 (8.a3 d5 9.Be2 a5=) 8...d6 (8...d5 9.ed6 ed6 10.0-0=) 9.0-0 de5 10.h3 e4 11.Ng5 Nh6 12.Ne4 Bf5 (12...a5 13.Ba3=) 13.Nbd2 (13.Re1 e6+=) 13...Qc7 (13...e5 14.de5 Nd7 15.e6 Be6 16.Be6 fe6 17.Qb3+=) 14.Ng3 (14.Qf3 Rd8+=) 14...Nd7 15.Nf5 Nf5 16.Re1 (16.Bd3 Nd6=) 16...Nf6 (16...e5 17.Nf3=) 17.Qe2 Rae8 (17...e6 18.Bd3+=) 18.Nf3 e6 19.Ne5 Nd5 20.a3 b5 21.Bb3 a6 (21...a5 22.ba5 Ra8 23.a4 Ra5 24.ab5 Rb5 25.Ba4=) 22.c4 Nb6 23.cb5 cb5= 24.Rac1 Qb7 25.Qf3 Qf3 26.Nf3 Rc8 27.Rc8 Rc8=+ 28.Ne5 Nd5 29.Bd5 ed5=+ 30.Re2 Nd6 31.f4 Ne4 32.Nd7 Rc4 33.Ne5 Rc8 34.Nd7 Rc4 35.Ne5= (35...Be5 36.fe5=+). Wall,Bill – SamEarl, Internet, 2002.

6.d4 d6 7.Be2 de5 8.de5 Nd7 9.0-0 Nde5 10.Ne5 Ne5 11.Qd8 Rd8 12.c3 Bd7 13.Na3 a6 14.c4 Nf3 15.Bf3 Bb2 16.Bb7 Rab8 17.Ba6 Ba3 18.b5 Bc5 19.a4 Be6 20.Rac1 Rd4 21.a5 Bc4 22.Rfe1 Kf8 23.b6 Ba6 24.Rc5 cb6 25.ab6 Rb6 26.Rc7 Re6 27.Rb1 Rb4 28.Rbc1 Rbe4 29.h3 Re1 30.Kh2 Rc1 31.Rc1 Bd3 32.Rd1 Bf5 33.Rd8 Kg7 34.g4 Be4 35.Kg3 Rf6 36.f4 Ra6 37.Rd7 e6 38.g5 Ra3 39.Kh4 Bf5 40.Rf7 Kf7 ½–½. Adjailton (1810) – Galactic_Hitchhiker (1795), lichess.org, 2020.

4.e4 d6

5.Nc3 Bg4 6.Be2 (6.h3 Bd7 7.d4 0-0=) 6...0-0 (6...Ne4 7.0-0-/+) 7.0-0 (7.Rb1 c6=) 7...Nh5 (7...Ne4 8.Re1-/+) 8.e5 (8.Ng5!? Be2 9.Qe2=) 8...Nf4=+ 9.ed6 Ne2 (9...Qd6 10.a3=+) 10.Qe2= cd6 (10...ed6 11.Qe4 Qc8 12.Rfe1=) 11.Rab1 (11.Qe4 Qd7=) 11...Nc6=+ 12.Nd1 (12.Ne4=+) 12...Nd4 (better 12...Bb2!? 13.Rb2 Ne5=+) 13.Bd4+= Bd4 14.h3 (14.Ne3 Be3 15.fe3 Qc7+=) 14...Bf3= 15.Qf3 Bg7 (15...d5!?=) 16.Qb7+= Qb6 (better 16...d5+=) 17.Qb6?? (better 17.Qe7 Rfe8 18.Qh4+–) 17...ab6=+ 18.Rb2? (better 18.Re1 e6 19.c3 Ra2 20.Rb2=+) 18...Bb2–+ 19.Nb2 Ra2 20.Nd3 (20.Rb1–+) 20...Rc2 21.Ra1 (21.Rd1 e5–+) 21...Rd2 22.Nf4 (22.Ra3–+) 22…e5 (22...e5 23.Ra6 Rb8–+) 0–1. aravind555 – fuhkboi, lichess.org, 2018.

5.Bc4 a6 6.0-0 0-0 7.d3 b5 8.Bb3 Bb7 9.a4 ba4 10.Ba4 Bc6 11.Re1 Ba4 12.Ra4 c5 13.bc5 dc5 14.Nbd2 Nc6 15.Qe2 Qc7 16.Nb3 Nd7 17.Bg7 Kg7 18.Rea1 Qb6 19.d4 cd4 20.Nfd4 Nd4 21.Rd4 Rfd8 22.e5 e6 23.Rad1 Ra7 24.Rd6 Qb7 25.Na5 Qb5 26.Qb5 ab5 27.Nc6 1–0. Rosner,Dirk – Nagel,Joseph, Tiger SC, 2001.

5.Bc4 e6 6.d3 (6.0-0 0-0=) 6...0-0 7.0-0 c6 8.Nbd2 b5 9.Bb3 a5 10.a3 Nbd7 11.Re1 Nb6 12.c4 ab4 13.ab4 Ra1 14.Ba1 Ba6 15.c5 dc5 16.bc5 Nbd7 17.d4 Ne8 18.e5 Nc7 19.Ne4 Nd5 20.Bd5 ed5 21.Nd6 Qb8? (better is 21...Qe7+/-) 22.Nf7?? (better is 22.Qe2+–) 22...Rf7= 23.e6 Rf3 24.ed7? (better is 24.Qf3 Qe8 25.Qe3+=) 24...Rf8–+ 25.Re7 Qf4 (better is 25...Bf6 26.Re3–+) 26.Re8? (better is 26.Qe1 Bf6 27.Qe6 Kh8 28.g3-/+) 26...Qf2 27.Kh1 Qf7 (better is 27...Bf6 28.Bc3 Qf5–+) 28.Qe2?? (better is 28.d8Q Qe8 29.Qb6-/+) 28...Qd7–+ (28...Qd7 29.Rf8 Kf8–+) 0–1. phildo (1840) – gajef (1650), gameknot.com, 2013.

5.Bd3 0-0 6.0-0 e5 7.c4 a5 8.b5 c6 9.Nc3 Be6 10.Ng5 (10.Be2 cb5 11.cb5 d5=) 10...Bd7 11.Bc2 h6 12.Nf3 Be6 13.d3 Nbd7 14.Ba3 Qc7 15.Rb1 Rfd8 16.Na4 c5 17.Qd2 b6 18.Nc3 Nh7 19.Nd5 Qc8?? (better is 19...Bd5 20.ed5 Re8+=) 20.Ne7+– (20.Ne7 Kh8 21.Nc8 Rac8 22.Rbe1+–) 1–0. DEFFM – GuestQHLQ, freechess.org, 2018.

5.Bd3 b6 6.0-0 Bb7 7.Re1 0-0 8.e5 Ng4 9.ed6 Qd6 (9...Bb2 10.de7 Qd6 A) worse is 11.ef8N Ba1 (worse is 11...Kf8 12.h3 Ba1 13.hg4+=) 12.Na3 Bd4–+ (12...Kf8 13.Qa1 Qf6 14.Nb5 Qa1 15.Ra1+/-); B) 11.ef8B Kf8 12.h3 Ba1 13.hg4 Qb4 14.g5=) 10.Bg7 Kg7 11.a3 (11.Be4 Be4 12.Re4 f5=) 11...Nd7 (11...Bf3 12.Qf3 Qh2 13.Kf1 Qh1 14.Ke2-/+) 12.h3 Ngf6 (12...Nf2 13.Kf2 Bf3 14.Qf3 Qd4 15.Qe3 Qf6 16.Kg3 Qa1 17.Nc3 Qa3 18.Qd4 Nf6 19.Nb5-/+ (19.Re7? Rad8 20.Qe5 Qb4–+)) 13.Be2 (13.Nc3 Bf3 14.Qf3 Ne5=) 13...c5 14.b5 Nd5 15.d3 (15.Nc3 Nf4+=) 15...N7f6 16.c4 Nf4 17.Bf1 Rad8 18.Re3 Ne6 19.Nc3 Bf3 20.Rf3 Nd4 21.Re3 Rfe8 22.Ne4 Ne4 23.de4 Nb5 24.Qa4 Nd4 25.Rc1 Qc6 26.Qa6 e5 27.f3 (27.Be2 Rd6–+) 27...Rd7 28.Rcc3 Ne6 29.Qb5 Qb5 30.cb5 Rd1 31.Red3 Rd8 (31...Rb1!? 32.Rd7 Rd8 33.Rd8 Nd8 34.Rc4–+) 32.Rd8 Rd8 33.Rd3 Rd3 34.Bd3 Nd4 35.Kf2 Kf8 36.Ke3 Ke7 37.f4 f6 38.fe5 fe5 39.g4 g5 40.Kf2 Nb3 41.Ke3 Na5 42.Kd2 c4 (better is 42...Nb7-/+) 43.Bc2?? (better is 43.Bf1=) 43...Kd6–+ 44.Ke2 (44.Kc3 Kc5–+) 44...Kc5 45.a4 (45.Kd1 Nb3–+) 45...Kb4 46.Kd2 (46.Kd1 Kc3 47.Bb1–+) 46...Nb3 (46...Nb3 47.Ke3 Ka4–+) 0–1. tightfist (2500) – phoenixd (2535), net–chess.com, 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e4 d6)

5.Bd3 Nc6 6.b5= Nb8 7.0-0 c6 (7...Nbd7 8.Nc3=) 8.a4 (8.Nc3 0-0+=) 8...0-0 9.h3 Nbd7 10.c4 (10.Nc3 Nc5=) 10...Nc5 11.Qe2 e5 12.Bc2 Nh5 (12...Ne6 13.Qe3=) 13.Qe3 Nf4 (13...Be6 14.Na3=) 14.d4= Nce6 15.de5 de5 16.Rd1 (16.Ne5?? Qg5 17.g3 Be5 18.Be5 Nh3 19.Kg2 Qe5–+; worse is 16.Be5 Be5 17.Ne5 Qf6–+) 16...Qc7 17.c5 cb5 18.ab5 Qc5 19.Qc5 Nc5 20.b6 f6 (better is 20...a5-/+) 21.ba7+= Be6 22.Nc3 (22.Rd6 Rfc8 23.Nc3 Bf8+=) 22...Na6+= 23.Nb5 (23.Nd5 Nd5 24.ed5 Bd7+=) 23...Bc4 (23...Rfc8 24.Ba4 Rc4 25.g3 Ne2 26.Kg2+=) 24.Nd6 Be2 (24...Be6!? 25.Ba3 Ra7+=) 25.Bb3+/- Kh8 26.Nf7 Rf7 27.Bf7 Bd1 28.Rd1 Bf8 (better is 28...Nc5!? 29.Bc4 h5+/-) 29.Ne5!+– fe5?? (29...Ra7 30.Ng4 Ra8+–) 30.Be5 Bg7 31.Bf4 Bf6 (31...Nb4 32.Be3 Nc6 33.Bd5 Na7 34.Bb7+–) 32.Be3 1–0. DEFFM – GuestNZTD, freechess.org, 2018.

5.d4 Ne4 6.Bd3 Nf6 7.0-0 0-0 8.c4 b6 9.a3 Bb7 10.d5 c5 11.b5 Nbd7 12.Qe2 a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 Ng4 16.Bg7 Kg7 17.Nbd2 Nge5 18.Ne5 Ne5 19.f4 Nd3 20.Qd3 Qa8 21.Ne4 Qa2 22.Ng3 Ra8 23.f5 Ra3 24.Qe4 Rc3 25.Qe7 Qc4 26.Qb7 Rc1 27.f6 Kh6 28.Qf7 Rf1 29.Nf1 Qd4 30.Kh1 Qf4 31.Qg7 Kg5 32.h4 Kg4 33.Nh2 Kg3 34.Nf3 Qc1 35.Ng1 Qf4 36.f7 Qh4 37.Nh3 Qe4 38.f8Q Qg2 0–1. Adjailton (1855) – arkantoslp (1750), lichess.org, 2019.

5.d4 Bg4 6.Qd3 0-0 7.Be2 Nc6 8.a3 Bf3 9.gf3 a5 10.b5 Na7 11.a4 b6 12.Nd2 c6 13.c4 cb5 14.cb5 Rc8 15.Nc4 Nh5 16.Bc1 d5 17.ed5 Qd5 18.Be3 Qd8 19.Rd1 Nf6 20.Rg1 Nd5 21.Bg5 Qd7 22.f4 f6 23.Bh4 Nf4 24.Qe4 Nd5 25.f4 Qh3 26.Bg3 Qd7 27.h4 f5 28.Qf3 Qe6 29.h5 Qe4 30.hg6 Qf3 31.gh7 Kh8 32.Bf3 Rc4 33.Bd5 Ra4 34.Bh4 Rd4 35.Rd4 Bd4 36.Be7 Re8 37.Rg8 Rg8 38.hg8Q 1–0. Adjailton (1715) – gbg81 (1705), lichess.org, 2019.

5.e5 Nfd7 6.d4 de5 7.de5 Nc6 8.Bb5 Nb4 9.Bc3 Nc6 (9...c6!? 10.Bc4 Nd5 11.Bd5 cd5 12.Qd5 Qc7=+) 10.e6+= Bc3 11.Nc3 fe6 12.h4 (12.Bc6 bc6 13.Ng5 Ne5 14.Qd8 Kd8+=) 12...Nf6 (12...Nb4 13.Rb1 Nd5 14.Qd4=+) 13.Qe2 (better 13.Qd8!? Kd8 14.Bc6 bc6 15.Ne5+=) 13...Qd6=+ 14.0-0 0-0 15.Rad1 Qc5 (15...Qa3 16.Bc6 Qc3 17.Ba4=+) 16.Bc4 Attacks the isolani on e6 (16.Na4 Qh5=) 16...Kh8 17.Ne4 Ne4 18.Qe4 Qf5 19.Qe2 b6 20.Bd3 Qf6 21.Ng5 (21.Be4 Bb7=+) 21...Nd4-/+ 22.Qe4 Rb8 23.c3 Nf5 24.g3? (24.Rfe1 c5-/+) 24...Bb7 (better 24...h6!? 25.Nh3 e5-+) 25.Qe6-/+ Rbd8 (25...Ng7 26.Qe3-/+) 26.Bc4 (26.Bf5 Rd1 (26...Qf5?? 27.Rd8 Rd8 28.Nf7 Kg7 29.Nd8 Qe6 30.Ne6 Kf6 31.Nc7+-) 27.Rd1 gf5 28.Qf6 ef6=) 26...Qe6 (better 26...Rd1!? 27.Rd1 Qc3-/+) 27.Ne6= (worse 27.Be6 Rd1 28.Rd1 h6=+) 27...Rd1 28.Rd1 Rc8 29.Rd7 Bc6 30.Rc7 (30.Rd2 b5 31.Bd3 a6=) 30...Rc7 31.Nc7 Nd6 32.Bd3 (32.Be6 Ne4=) 32...Kg7 (32...e5 33.c4=) 33.Ne6 Kf6 34.Nd4 (34.Nf8 h6=+) 34...Be4 35.Ba6 e5 36.Ne2 (36.Nb5 Nb5 37.Bb5 Bf3=+) 36...Ke6 (36...Bd5 37.Nc1-/+) 37.Nc1 Kd5 38.Nb3 (38.Be2 b5-/+) 38...Bc2 (38...Bb1 39.c4 Kc6 40.Nc1-/+) 39.Nd2 Kc5 40.Kf1? (40.Bf1 e4-/+) 40...Ne4?? (better 40...b5-+) 41.Ne4=+ Be4 42.Ke2 (better 42.Ke1!?=+) 42...Bd5-+ 43.a3? (better 43.Kd3 Ba2 44.c4-+) 43...Bc4 44.Bc4 Kc4 45.Kd2 b5 (45...Kb3!? 46.a4-+) 46.Kc2 a5 (46...e4 47.h5-+) 47.f3 (better 47.f4 ef4 48.gf4-+) 47...a4 48.g4 (48.h5 gh5 49.Kd2 h4 50.gh4 Kb3-+) 48...h6 49.g5 h5 50.Kd2 Kb3 51.Ke3 Ka3 52.Ke4 Kb3 53.Ke5 a3 54.f4 (54.Kf6 a2 55.Kg6 a1Q 56.Kh5 Kc3-+) 54...a2 55.f5 (55.Kf6 a1Q 56.Kg6 Qa4-+) 55...a1Q 56.fg6 Qc3 57.Ke6 Qg7 58.Kf5 Kc4 (58...Kc4 59.Ke4 b4 60.Kf3 b3 61.Kg2 b2 62.Kf3 Qc3 63.Ke4 b1Q 64.Kf4 Qf1 65.Ke4 Qff3) 0-1. Shuvalov,E (2180) - Rishi,S (2460), Titled Tuesday, 2020.

5.c4 0-0

6.Qc2 a5 7.b5 e5 8.a4 Nbd7 9.Nc3 Nc5 10.Be2 Nh5 11.0-0 Nf4 12.d3 f5 13.Rfe1 (13.Ba3 Be6+=) 13...fe4-/+ (worse is 13...Ne2 14.Qe2 g5 15.Nd2+=) 14.Ne4 Ne4 15.de4 b6 16.Red1 Ne2 17.Qe2 Bg4 18.Rd3 Bh6 19.Be5 Bf3 20.gf3 Bf4 21.Bf4 Rf4 22.Kh1 Qf6 23.Re1 Rf8 24.e5 de5 25.Qe5 Qe5 26.Re5 Rc4 27.Re4 Re4 28.fe4 Rf2 29.Rd8 Kg7 30.Rd7 Rf7 31.Rd8 Kf6 32.Rd5 Re7 33.Rd4 Ke5 34.Rc4 Kf4 35.Kg2 Ke3 (35...g5 36.h4–+) 36.Kg3 (36.e5!?-/+) 36...Kd3–+ 37.Rc6 Ke4 38.Kg4 Kd5 39.h4? (better is 39.Kg5–+) 39...Re4 40.Kg5 h6! 41.Kh6 (41.Kg6 Rh4 42.Rc7 Ra4 43.Rc6–+) 41...Rh4 (41...Ra4?! 42.Kg5-/+) 42.Kg6 Ra4 43.Rc7 Rb4 44.Kf6 Rb5 45.Rc1 (45.Ra7 Rb4 46.Rd7 Kc4–+) 45...a4 0–1. tightfist (2475) – jvanmechelen (2560), net–chess.com, 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e4 d6 5.c4 0-0)

5.Bc4 0-0

6.0-0 b6 7.d3 Bb7 8.Ng5 Nbd7 9.Nf7 Rf7 10.Bf7 Kf7 11.f4 Kg8 12.e5 de5 13.fe5 Nd5 14.c4 Nb4 15.Qb3 Nc6 16.d4 e6 17.d5 Na5 18.Qf3 Qf8 19.Qf8 Rf8 20.de6 Rf1 21.Kf1 Ne5 22.Nd2 Nec4 23.Bg7 Kg7 24.Nc4 Nc4 25.Rc1 Bd5 26.e7 Kf7 27.Re1 Ke8 28.Rd1 c6 29.Re1 Nd6 30.g4 Nc8 31.h4 Ne7 32.Kf2 Kf7 33.Kg3 Kg7 34.Re7 Kf6 35.Ra7 h5 36.g5 Kf5 37.Rb7 b5 38.Ra7 Ke5 39.Rg7 Be4 40.Re7 Kd4 41.Re6 Kd5 42.Rf6 Bf5 43.Kf4 Kc5 44.Rf8 Kb4 45.Ra8 c5 46.a3 Kb3 47.Ke5 c4 48.Kd4 c3 49.Ra5 b4 50.ab4 Kb4 51.Rf5 c2 52.Rf1 Kb3 53.Kd3 Kb2 54.Kd2 Kb3 55.Rc1 Kc4 56.Rc2 Kd5 57.Ke3 Ke5 58.Rc5 Ke6 59.Kf4 Kf7 60.Ke5 Kg7 61.Rc7 Kh8 62.Kf6 Kg8 63.Kg6 Kf8 64.Kh5 1–0. Adjailton (1740) – NeronNeron (1730), lichess.org, 2019.

6.0-0 Nc6 7.b5 Na5 8.Bd3 Bg4 9.c4 a6 10.a4 Bf3 11.Qf3 Nb3 12.Ra3 Nc5 13.Bc2 ab5 14.cb5 c6 15.d4 Ncd7 16.e5 Nd5 17.bc6 bc6 18.Be4 N7b6 19.a5 Nc4 20.Ra1 Nb2 21.Bd5 cd5 22.Qc3 Nc4 23.a6 de5 24.de5 Be5 25.Qa3 Ba1 26.Qa1 Qb6 27.Nc3 e6 28.Rb1 Qa6 29.Qa6 Ra6 30.Nb5 Ra2 31.g3 Nd2 32.Rc1 Kg7 33.Nd4 h5 34.Rc7 Kf6 35.h4 Ne4 36.Kg2 Nf2 37.Nf3 Ne4 38.Kh3 Ra3 39.Nd4 Ng3 40.Nc2 Rb3 41.Nd4 Rd3 42.Nb5 Nf5 43.Kh2 Nh4 44.Rc2 Rb8 45.Rf2 Ke7 46.Re2 Rb5 0–1. Adjailton (1775) – fairooz_fz (1760), lichess.org, 2019.

6.0-0 Ne4 7.Bg7 Kg7 8.Re1+=.

6.0-0 Bg4 7.d3 Nbd7 8.Nbd2 (8.h3 Bf3 9.Qf3 c6=) 8...e6 9.h3 Bf3 10.Nf3 (worse is 10.Qf3 Ne4 11.de4 Bb2-/+) 10...a5 11.a3 ab4 12.ab4 Ra1 13.Qa1 c6 14.Bb3 Qa8 15.Qa8 Ra8 16.Ra1 Ra1 17.Ba1 b5 18.e5 Nd5 19.Bd5 ed5 (19...cd5 20.d4+=) 20.d4 Kf8 21.ed6 h6 (better is 21...f6!?=) 22.Ne5+/- Ne5 (better is 22...Nb8!?+/-) 23.de5+– Ke8 24.f4 Kd7? (better is 24...Bf8+–) 25.e6! Ke6 (25...Ke6 26.Bg7 Discovered attack; 25...fe6 26.Bg7 Discovered attack) 26.Bg7 Kd6 27.Bh6 f5 (27...Ke6 28.g4+–) 28.Bg7 1–0. constantine (2370) – croach (2375), net–chess.com, 2016.

6.Nc3 a6 7.0-0 (7.Rb1 Nc6=) 7...b5 (7...Ne4 8.Re1 Nc3 9.Bc3+=) 8.Bb3 (8.Bd3 a5=) 8...Nbd7 (better is 8...Ne4!? 9.a4 Bb7+=) 9.Re1 c5 10.bc5 Nc5 11.d4 Nb3 12.ab3 Bb7 13.Qd3 Qc7 14.e5 (14.b4!?=) 14...de5+= 15.Ne5 Rac8 16.Re2 e6 17.Nd1 Nd5 18.Qg3 Rfd8 19.c3 a5 20.h4 (20.c4 bc4 21.bc4 Ba6+=) 20...Nf6 21.f3 (21.Qd3 b4 22.c4 Nh5=) 21...Nh5 (21...Bd5 22.c4 bc4 23.bc4 Bc4 24.Rc2-/+) 22.Qg4 (22.Qh2 Bd5 23.g4 f6=) 22...Bd5 23.b4 Bc4 24.Nc4 Qc4 25.Rd2 ab4 26.Ne3? Qb3 27.Nd1 bc3 28.Bc3 Rc3 29.Nc3 Qc3 30.Rad1 f5 31.Qh3 Bd4 32.Kh1 Rd5 33.Rd3 Be5 34.Rd5 ed5 35.g4 Ng3 36.Kg1 Qe3 (36...Qe3 37.Kh2 Qf2 38.Qg2 Ne2 39.f4 Bf4 40.Kh1 Qh4 41.Qh3 Qh3#) 0–1. Old Beal – ManchesterChess, ChessWorld.net, 2009.

6.Nc3 Ne4 7.0-0-/+.

6.d3 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 e6 10.0-0 d5 11.ed5 11...ed5 12.Bb3 Re8 13.Re1 c6 14.Nbd2 (14.Bd4 Bf5=) 14...Na6 15.Bc3 Re1 16.Qe1 Qf8 17.Nf1 Bg4 18.Nd4 Bd7 19.Ng3 (19.Ne3 Qd6=) 19...Nc7 (19...Qd6 20.Nf3=) 20.h3 Qe8 21.Qa1 Qe7 22.Qa7 Bc8 23.Bd2 Nfe8 24.c3 Nd6 25.c4 dc4 26.dc4 Bf6 27.Be3 Ne6 28.Ne6 Qe6= 29.Qa2 Qe8 30.c5 Nb5 31.Qc2 Nc3 32.Qd3 Qd7 33.Qc2 Qe7 34.Bd2 Qe5 35.Bc3 ½–½. Coltharp,Cameron – Trokenheim,Marek, email CTON, 1996.

6.d3 a6 7.0-0 e6 8.Bb3 c5 9.bc5 dc5 10.Nbd2 Ne4 11.Bg7 Nd2 12.Bf8 Nf3 13.Qf3 Qf8 14.Rfe1 Nc6 15.Qf6 Qg7 16.Qg7 Kg7 17.f4 Bd7 18.Kf2 Nd4 19.Re5 Rc8 20.c3 Nb3 21.ab3 Kf6 22.g4 Bc6 23.Rc5 Rd8 24.d4 Rd5 25.Rd5 Bd5 26.c4 Bc6 27.Ke3 g5 28.Ra5 h6 29.h4 1–0. Rosner,Dirk – Neumann,Ulf, Tigerschachclub, 2000.

6.d3 c5 7.bc5 Qa5 8.Nbd2 Qc5 9.0-0 Nc6 10.d4 Qh5 11.d5 Na5 12.Be2 Ng4 13.Bg7 Kg7 14.Nb3 Nb3 15.cb3 f5 16.Qd4 Kg8 17.h3 Ne5 18.Rfe1 Nf3 19.Bf3 Qh4 20.Rac1 fe4 21.Re4 Qg5 22.Rc7 Rf7 23.Qe3 Qe3 24.Re3 e5 25.Rec3 Bf5 26.Rf7 Kf7 27.Rc7 Kf6 28.Rh7 b6 29.g4 Bb1 30.h4 e4 31.Bd1 Rc8 32.Kg2 Rc1 33.f4 Rd1 34.Ra7 Rd5 35.Rb7 Rd2 36.Kg3 Rd3 37.Kg2 Ba2 38.b4 Bb3 39.Rb6 Bd1 40.g5 Kf5 41.Rb8 Kg4 42.Rg8 Bf3 43.Kf2 e3 44.Kg1 Rd1 45.Kh2 Rh1 0–1. Feldstein,R – Rowley,R, 1990. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e4 d6 5.Bc4 0-0)

6.d3 c5 7.bc5 Qa5 8.Nbd2 Qc5 9.Rb1 Nc6 10.0-0 Rb8 11.d4 Qh5 12.d5 Na5 13.Be2 Bg4 14.h3 Bf3 15.Bf3 Qh4 16.Re1 Ne8 17.Bg7 Ng7 18.e5 de5 19.Re5 b6 20.Qe2 e6 21.c4 Rbc8 22.Bg4 h5 23.Bf3 Rfd8 24.Rd1 Qd4 25.a3 a6 26.g3 Qb2 27.Re3 Nf5 28.Rd3 Qc2 29.Qf1 Qa4 30.Be4 Kg7 31.Bf5 ef5 32.Rb1 Nc4 33.Rb4 Qc2 34.Nc4 Rc4 35.Rb6 Rc3 36.Rd4 Ra3 37.Ra6 Qc5 38.Ra3 Qd4 39.Rd3 Qe5 (39...Qe5 40.Qd1 f4=). kamret (2205) – zinga (2360), GameColony.com, 2003.

6.d3 c5 7.bc5 dc5 8.Nbd2 Nc6 9.0-0 a6 10.a4 Bd7 (10...Qc7 11.Re1+=) 11.Nb3 Bg4 12.Nc5 b5 (12...Na5!? 13.Ba2 Rc8+=) 13.ab5+– ab5 14.Bb5 Ra1 15.Qa1 Bf3 16.gf3 Nb4? (16...Qb6 17.Qa6 Qc5 18.Bc6 Qg5 19.Kh1 Ng4 20.fg4 Bb2+=) 17.Qa4 (17...Nbd5 18.ed5 Qd5 19.d4+–) 1–0. Trkn – guest6216, ICC, 2004.

6.d3 c6 7.0-0 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Qb6 11.c3 d5 12.ed5 Nd5 13.Qb3 e6 14.Nbd2 Qc7 15.Bd5 ed5 16.c4 dc4 17.dc4 Ba1 18.Ra1 c5 19.b5 Re8 20.h3 Nd7 21.Nf1 b6 22.Ne3 Bb7 23.Nh2 h5 24.Rd1 Nf6 25.Qd3 Re7 26.Nhf1 Rd7 27.Qc3 Rd1 28.Nd1 Qf4 29.Nfe3 Ne4 30.Qa1 Nf2 31.Nf2 Qe3 32.Qa7 Qe1 33.Kh2 Qe5 34.Kg1 Qe1 35.Kh2 Qf2 36.Qb7 Qf6 37.Qc6 Kg7 38.Kg1 h4 39.Qe4 g5 40.Qd5 Kg6 41.Qe4 Qf5 42.Qe8 Kg7 43.Qc6 Qe6 44.Qc7 Kg6 45.Qd8 Qf6 46.Qd3 Kh6 47.Qd5 Qe6 48.Qd8 Kg6 49.Qd3 Kg7 50.Qd8 f6 51.Qc7 Kg6 52.Qc6 Kf5 53.Qf3 Ke5 54.Qe3 Kd6 55.Qf3 Qe1 56.Kh2 Qg3 57.Qg3 hg3 58.Kg3 Ke5 59.Kg4 Kd4 60.g3 Kc4 61.h4 gh4 62.gh4 Kd5 63.h5 Ke6 64.h6 Kf7 65.Kf5 c4 66.Ke4 Kg6 67.Kd4 f5 68.Kc4 f4 69.Kd4 Kh6 70.Ke4 Kg5 0–1. Ivanets,V – Bondarenko,Vladimir, Moscow, 1995.

6.d3 c6 7.0-0 b5 8.Bb3 Bg4 9.h3 Bd7 10.c4 a6 11.c5 d5 12.e5 Nh5 13.d4 Nf4 14.Qd2 Nh3 15.gh3 Bh3 16.Ng5 Bf1 17.Kf1 e6 18.Nc3 h6 19.Nf3 a5 20.a3 a4 21.Bc2 Nd7 22.Qf4 g5 23.Qh2 f5 24.ef6 Nf6 25.Ke2 Ng4 26.Qg3 Nf6 27.Ng5 hg5 28.Qg5 Ne4 29.Qd8 Rad8 30.Ne4 de4 31.Be4 Rd4 32.Bd4 Bd4 33.Rg1 Kf7 34.Bc6 Ke7 35.Rg2 Bb2 36.Bb5 Ba3 37.Ba4 Bb4 38.c6 Kd6 39.Rg7 Ba5 40.Rd7 Kc5 41.c7 Bc7 42.Rc7 Kb4 43.Bd7 e5 44.Ke3 Ka5 45.Rc8 Rf7 46.Bg4 Kb6 47.f3 Kb7 48.Rc5 e4 49.Ke4 Kb6 50.Rf5 Rc7 51.Rf6 Kc5 52.Be6 Kb4 53.f4 Re7 54.f5 Kc5 55.Rf7 Re8 56.Rc7 Kd6 57.Rd7 Kc5 58.Rd5 Kc6 59.Ke5 Ra8 60.Bd7 Kc7 61.f6 Ra1 62.Bf5 Re1 63.Be4 Rh1 64.Ke6 Re1 65.Re5 Ra1 66.f7 Ra6 67.Ke7 Ra7 68.f8Q Kb6 69.Kf6 1–0. Adjailton (1830) – Josefh10 (1770), lichess.org, 2020.

6.d3 c6 7.0-0 d5 8.ed5 cd5 9.Bb3 Nc6 10.a3 Qb6 11.Nc3 Rd8 12.h3 12...a6 13.Re1 h6 14.Qd2 Kh7 (14...d4 15.Na4 Qc7 16.Rac1=) 15.Ne5 (15.Ba4 Re8=) 15...Ne5 16.Re5 e6 17.Ree1 Qc7 18.Na4 Nd7 (18...d4 19.c4=) 19.Bg7 Kg7 20.Qc3 (20.d4 b6=) 20...Qc3 21.Nc3 b5 (21...d4 22.Ne2 Nf6 23.g3+=) 22.a4 ba4 23.Ra4 Rb8 24.Ne2 Nb6 25.Ra5 Na8 26.Nd4 Rd6 27.c3+= Nc7 28.Rc5 Nb5 29.Nc6 Ra8 30.Ba4 Bd7 31.Bb5 ab5 32.Na5 Rc8 33.f4 Ra6 34.Ra1 g5= 35.g3 gf4 36.gf4 Kf6 37.Kf2 Rc5 38.bc5 e5 39.fe5+/- (39.fe5 Kg6 40.Kg3+/-) 1–0. Garcia Camejo,Gonzalo – Martinez Perez,Orlando, corr Giraldilla Cup, 1999.

6.d3 c6 7.0-0 e5 8.Nbd2 Nbd7 9.d4 Qc7 ½–½. Ivanets – Saulin, Moscow 1996.

6.d3 c6 7.Bb3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Qb6 11.c3 Na6 12.Nbd2 d5 13.e5 (13.0-0 de4 14.de4 c5=) 13...Ng4 14.d4 f6 15.h3 Nh6 16.ef6 Bf6 17.Ne4 Bg7 18.0-0 Nf7 19.Nc5 e5 20.Na6 Qa6 21.de5 Be5?? 22.Ne5+/- Ne5 23.Qd4 Nc4 24.Bc4 Qc4 25.Qc4 dc4 26.Rd1 Bf5 27.Bb2 Ra8 28.Kf1 Ra2 29.Rd2 Bd3 30.Ke1 Kf7 31.f4 Ke6 32.Kf2 Kd5 33.Ke3 c5 34.bc5 Kc5 35.g4 Kb5 36.Bc1 Ra1 37.Rb2 Kc6+= 38.Kd2 Ra8 39.Ke1 Ra1 40.Kd1 Bf1 41.Rh2 Ra5 ½–½. Feldstein,Robert – Carl,Kevin, Michigan MEC Masters/Experts, 2000.

6.d3 Nc6 7.a3 a6 8.0-0 Bg4 (8...e6 9.Bb3=) 9.h3 Bf3 (9...Bd7 10.Nc3=) 10.Qf3 (< 10.gf3 Qd7-/+) 10...b5 (10...e6 11.Bb3=) 11.Bb3+= a5 12.d4 e5 (< 12...ab4 13.e5 de5 14.Qc6 ed4 15.Qb5 ba3 16.Na3+–) 13.de5 Nd7 14.Qe2 (14.Qd3 Be5 15.Nc3 Rb8=) 14...Nde5 (14...Be5 15.c3 Na7 16.f4=) 15.c3 (15.Nd2 Rb8+=) 15...Rb8 (15...Qb8 16.Bd5=) 16.f4 (16.a4!?+/-) 16...Nd7= 17.Nd2 (17.Bd5 Ne7=) 17...ab4 18.ab4 Nb4 19.e5 (19.cb4 Bb2) 19...Nc6 20.Ra6 Nb6 (20...Rb6 21.Rb6 Nb6 22.Qb5 de5 23.Ba3 Qd2 24.Qc6=) 21.ed6 Qd6=+ 22.Ne4 Rbe8 23.Qf3 Qe7 24.Nf2 Qc5-/+ 25.Ba3 b4 26.cb4=+ Nb4 27.Rb1 Bc3 28.Rc1 Re1 29.Re1 Be1 30.Bb4 Bb4 31.Kh2 Qd4 32.f5 gf5 33.Qf5 Bd6 34.g3 Qc3 35.Ne4 Qb2 36.Kh1 Be7 37.Qf3 Nd7 38.Ra7 Qb1 39.Kg2 Ne5 40.Qf5 Qb3 41.Qe5 Qc2 42.Kf3 Bd8 43.Ra8 Qd3 44.Kg2 c6 45.Nd6 Qd2 46.Kf1 Qd5 47.Qd5 cd5 48.Nf5 Bg5 49.Ra6 Rd8 50.Ke2 Bc1 51.Kd3 Bb2 52.g4 Bg7 53.Rd6 Rd6 54.Nd6 Bf6 ½–½. Benussi,Alberto (1740) – Capuozzo,Giovanni, TG, 1997.

6.d3 Nc6 7.a3 e5 8.0-0=.

6.d3 Nc6 7.a3 e5 8.Nbd2 Nh5 9.Nf1 Nf4 10.Ne3 Nd4 11.c3 Nf3 12.Qf3 c6 13.g3 Ne6 14.h4 f5 15.Qe2 f4+= 16.Nc2 Bh6 ½–½. Markos,J (2450) – Klima,L (2475), Extraliga CZE (4), 2004.

6.d3 e5 7.0-0 Be6 8.Be6 fe6 9.Nc3 Nh5 10.Ne2 Nd7 11.Bc1 h6 12.Ng3 Nf4 13.Ne2 Nh3 14.Kh1 Qe7 15.Neg1 Nf4 16.g3 Nh5 17.Nh4 Kh7 (17...Qf7 18.Be3+=) 18.Qg4 (18.Ng6 Ng3 19.fg3 Rf1 20.Qf1 (20.Ne7?? Rd1 21.Kg2 a5–+) 20...Kg6 21.Qg2=) 18...Qf7+= 19.Bd2 g5 20.Ng2 Qg6 21.h4 gh4 22.Qg6 Kg6 23.Nh4 Kh7 24.Kg2 Rf7 25.Ne2 Raf8 26.Rae1 Bf6 27.Nf3 Be7 28.Nh2 Rg8 29.Kh3 a6 30.Ng4 Rg6 31.Rh1 Ndf6 32.Nf6 Rff6 33.f4 ef4 34.gf4 d5 35.Reg1 de4 36.de4 Rf7 37.Rg6 Kg6 38.Rg1 Kh7 39.Kg4 Ng7 40.Bc3 Bd6 41.Kh3 Nh5 42.Bd2 Nf4 43.Nf4 Bf4 44.Rf1 e5 45.Bf4 Rf4 46.Rf4+= ef4 47.Kg4 Kg6 48.Kf4 Kf6 49.c4 Ke6 50.a4 c6 51.a5 h5 52.Kg5?? Ke5–+ 53.Kh5 Ke4 54.b5 cb5 55.c5 b4 56.c6 bc6 57.Kg4 b3 58.Kg3 b2 59.Kf2 b1Q 60.Ke2 0–1. Feldstein,Robert (2060) – Hayward,Keith (2270), Monadnock Marathon, 1981.

6.d3 e5 7.0-0 Bg4 8.Nbd2 Nc6 9.a3 h6 10.h3 Bd7 11.Rc1 Nh5 12.Re1 Nf4 13.Nf1 Qc8 14.h4 Kh7 15.c3 f5 16.N1h2 Bf6 17.Rc2 Qd8 18.g3 Nh3 19.Kg2 Qc8 20.Bc1 f4 21.Qd2 g5 22.hg5 hg5 23.Rh1+= Kg7 24.Qe1 Rh8 25.Kf1 g4 26.Nd2 Ng5 27.Ke2 Rh3 28.Qg1 Qh8 29.Bb2? Qh5–+ 30.Rc1?! Rh8 31.Ndf1 Nf3 32.Qg2 Nh2 33.Kd2 Nf1 34.Rhf1 fg3 (34...fg3 35.Kc2 gf2 36.Rf2 Rh2 37.Qh2 Qh2 38.Rh2 Rh2 39.Kb3 Bg5–+) 0–1. Feldstein,Robert – Times,J (2200), Foxwoods Open, Ledyards USA (3), 2006.

6.d3 e5 7.Nc3 c6 8.0-0 Qe7 9.h3 h6 10.a3 Be6 11.Be6 Qe6 12.Ne2 Nh7 13.Nh2 f5 14.f4 fe4 15.de4 ef4 16.Bg7 Kg7 17.Nf4 Qe7 18.Qd4 Nf6 19.Ng4 h5? 20.e5+– (20...de5 21.Ne5+– (21.Qe5?! Qe5 22.Ne5 Re8 23.Neg6 a5+/-)) 1–0. Roldan,Antonio Jose – Mueller,Bruno, 1998.

6.d3 e5 7.Nc3 c6 8.Bb3 Na6 9.a3 Nc7 10.Ne2 a5 11.0-0 Be6 12.c4 Nd7 13.Qd2 Qe7 14.Rfb1 Bg4 15.Qe3 Kh8 16.h3 Bf3 17.Qf3 f5 18.Ng3 f4 19.Nf1 Ne6 20.Bc1 Nd4+= 21.Qd1 f3 22.g3 Qe6 23.Kh2+= Nf6 24.Ne3 c5 25.ba5 Ne2 26.Qh1 Nd4 27.Bd1 Rf7 28.Bb2 Raf8 29.Bd4 ed4 30.Nd5 Nd5 31.ed5 Qc8 32.Bc2 Be5 33.Re1 Rf5 34.Re4 Rh5 35.h4 Qd8 36.Kg1 Qa5 37.Rae1?? Qd2–+ 38.g4 Bg3 39.Qf3 Rf3 40.R1e2 Bf2 41.Kg2 Qc1 42.Kf3 Qh1 43.Kf2 Qh4 44.Kf3 Qh1 45.Rg2 Rh3 46.Kf2 Qc1 47.Re2 Qf4 48.Kg1 Qc1 49.Kf2 Rh1 50.Kg3 g5 51.Rgf2 Re1 52.Rd2 Re3 53.Kg2 Qa3 54.Rf8 Kg7 55.Rdf2 Re7 56.Rd8 Qa6 57.Rff8 Rf7 58.Rg8 Kh6 59.Rde8 Rg7 60.Rgf8 Qa2 61.Rf2 b5 62.Kg3 Rg6 ½–½. Feldstein,Robert – Rogers,Bradley K, Lansing–ch MI op, 1987.

6.d3 e6 7.0-0 d5 8.ed5 ed5 9.Bb3 c6 10.Nbd2 Bg4 11.c4 dc4 12.Bc4 Nbd7 13.Qc2 Nb6 14.h3 Nc4 15.Qc4 Bf5 16.d4 Ne4 17.Ne4 Be4 18.Ne5 Bd5 19.Qd3 Be5?? (better is 19...Bg2 20.Kg2 Be5–+) 20.de5= Qg5 21.g3 Rad8 22.Qc3 Rfe8 23.e6 f6 24.Qf6 Qf6 25.Bf6 Rd6 26.Bd4 Rde6 27.Be3 Re3 28.fe3 Re3 29.Rae1 Rg3 ½–½. marmite (2265) – rogeliovargas (2260), net–chess.com, 2011.

6.Qe2 c6 7.Bb3 Qb6 8.0-0 Qb4 9.d4 Bg4 10.Nbd2 Qa5 11.h3 Bf3 12.Nf3 Nfd7 13.Rad1 e6 14.c4 Na6 15.e5 d5 16.cd5 cd5 17.h4 Nb6 18.h5 Qb4 19.hg6 fg6 20.Ng5 Rae8 21.Qg4 Qe7 22.Bc2 Rf5 23.f4 Rc8 24.Bf5 ef5 25.Qh3 h6 26.Ba3 Qe8 27.Nf3 Rc3 28.Bc1 Qe6 29.Qh4 Nc7 30.Bd2 Ra3 31.Rc1 Ne8 32.Rc2 Nc4 33.Rb1 b6 34.Qd8 Bf8 35.Bb4 Ra4 36.Rc4 dc4 37.d5 Qf7 38.e6 Qc7 39.Qe8 Rb4 40.Qg6 Qg7 41.Qf5 Bc5 42.Kh2 Rb1 43.Qb1 c3 44.Nh4 Qg4 45.Nf5 Qf4 46.Kh3 h5 47.d6 Qg4 48.Kh2 Qf4 49.Kh3 Qg4 50.Kh2 Qf4 51.g3 Qf2 52.Kh3 c2 53.Ne7 Kh7 54.Qh1 Qd4 55.Qb7 Qg4 56.Kg2 Qe2 57.Kh3 Qg4 58.Kh2 Qe2 59.Kh3 Qe6 0–1. Menvielle Lacourrelle – Garcia Padron, Las Palmas 1993.

6.Qe2 Nbd7 7.0-0 c5 8.a3 b6 9.Nc3 Bb7 10.d3 e6 11.bc5 bc5 12.Rab1 d5 13.Bb5 a6 14.Bd7 Qd7 15.e5 Ng4 16.h3 Nh6 17.d4 Rfc8 18.Rfd1 Nf5 19.dc5 Rc5 20.Ne4 Rc7 21.c4 Rac8 22.c5 Qa4 23.Nd6 Rb8 24.Rdc1 Bc6 25.Nf5 gf5 26.Bd4 Rcb7 27.Rb6 Bb5 28.Qe3 Rb6 29.cb6 Bd7 30.Rc7 Qb5 31.Qg5 Qb1 32.Kh2+– Be8 33.Qg3 Qe4 34.Qh4 Qh4 35.Nh4 Bf8 36.b7 Ba3 37.Ba7 Rd8 38.Rc8 d4 39.Rd8 d3 40.Re8 Kg7 41.b8Q d2 42.Rh8 d1Q 43.Qg8 Kh6 44.Rh7# 1–0. b4_player (2225) – ferda (2030), GameColony.com, 2003.

6.Qe2 e5 7.0-0 Nbd7 8.Bb3 Qe7 9.c4 Nh5 10.g3 Re8 11.Nc3 c6 12.Rac1 Nf8 13.c5 dc5 14.b5 Bg4 15.bc6 bc6 16.Na4 Qf6 17.Kg2 Ne6 18.Nc5?? (18.Qe3 Bh6! 19.Qc3 Nhf4 20.gf4 Nf4 21.Kg3 Ne2 22.Kg4 Nc3 23.Rc3 Qf4 24.Kh3 Qe4 25.Nc5 Qf5 26.Kg2–+) 18...Nef4! 19.gf4 Nf4 20.Kg3 (20.Kh1 Ne2 21.Ne1 Qf3 22.Ng2 Bh3 23.Rg1 Nf4 24.Bf7 Kf7 25.Be5 Bg2 26.Rg2 Qg2) 20...Ne2 21.Kg4 Qf4 (21...Qf4 22.Kh3 Qf3 23.Kh4 Bf6) 0–1. Grabmeier,Johannes (1900) – Habdank,Christoph (2070), Regionalliga SO, 2007.

6.Qe2 e5 7.0-0 Bg4 8.h3 Bd7 9.a3 Nc6 10.Nc3 Nh5 11.Nd5 f5 (11...Nd4 12.Nd4) 12.Nc7 Kh8 13.Na8 Qa8 14.Ng5 Qe8 15.d3 f4 16.Nf3 Be6 17.Be6 Qe6 18.b5 Ne7 19.d4 b6 20.Qd3 Rd8 21.de5 d5 22.Ng5 Qg8 23.g4 h6 24.Nf3 1–0. Wall,Bill – Vepica, playchess.com, 2012.

6.Qe2 e5 7.0-0 Bg4 8.h3 Bd7 9.b5 a6+=.

6.Qe2 e5 7.0-0 Bg4 8.h3 Bd7 9.d4 ed4 10.Nd4 Re8 11.Bb3 (11.Qd3 Ne4 12.Re1 Ng5 13.Re8 Qe8+=) 11...Nc6 (11...c5 12.bc5 dc5 13.Nf3 Ne4 14.Bg7 Kg7 15.Qc4-/+) 12.Qc4 (12.Nc6 Bc6 13.f3 Ne4 14.Bf7 Kf7 15.fe4 Kg8 16.Bg7 Kg7+=) 12...Ne5 13.Qe2 b5 14.Nb5 Nh5 (14...Ne4 15.N5c3 Nc3 16.Nc3 Qh4+=) 15.f4 (better is 15.N5c3=) 15...Ng3 16.Qf2 (16.Qe1 Nf1 17.fe5 Bb5-/+ (worse is 17...Be5 18.Be5 Bb5 19.Bb2+/-)) 16...Ne4 (16...Bb5 17.fe5 Nf1 18.Bf7 Kh8 19.Be8 Qe8 20.Na3 de5 21.c4+= (worse is 21.Rf1 Bf1 22.Qf1 Qc6-/+)) 17.Qe1 (better is 17.Qe2 Nf3! 18.Qf3 Bb2 19.N1a3 Ba1 20.Ra1–+) 17...Nf3!! (17...Bb5?! 18.fe5 Bf1 19.Qf1–+) 18.Rf3 Bb2 19.f5 Ng5 20.Re3 Bb5 21.fg6 hg6 22.Nc3 Ba1 (22...Ba1 23.Nb5 Nh3 24.Kh2 Be5 25.g3 Nf4–+) 0–1. Pogorelov,I (2135) – Kislinsky,A (2470), TCh–UKR Clubs, Alushta UKR, 2010.

6.Qe2 e5 7.h4 Bg4 (7...Nc6 8.0-0-/+) 8.Qe3 (8.Nc3 Nc6-/+) 8...c6 (8...Nc6 9.b5 Nd4 10.Nd4 ed4 11.Bd4-/+) 9.Nh2 (9.0-0 d5 10.ed5 cd5-/+) 9...d5 (9...Bc8 10.0-0-/+) 10.Bb3 (10.Ng4 Ng4 11.Qe2 Nf2 12.Kf2 dc4 13.Qc4 a5-/+) 10...h5 (better 10...Be6!?-/+) 11.Ng4=+ (11.Be5? Re8 12.d4 Nbd7 13.Bf6 Bf6–+ (13...Nf6?! 14.e5=+; 13...Qf6?! 14.Ng4 hg4 15.Nd2-/+)) 11...Ng4 (11...hg4 12.d3=+) 12.Qf3 (12.Qg3 Bh6 (worse 12...de4 13.f3 Nf6 14.Qg6+=) 13.Nc3 a5 14.ed5 ab4=+) 12...Nd7=+ 13.Nc3 (13.ed5?? e4! 14.Qg4 hg4–+) 13...Nb6 (13...a5 14.a3 d4 15.Ne2-/+) 14.d3 (14.Qd3 a5 15.a3 Nf6=+) 14...Qe7-/+ 15.a3 a5 (15...d4 16.Ne2 a5 17.ba5 Ra5-/+) 16.b5 (16.ed5 cd5 17.Bd5=+ (worse 17.Nd5 Nd5 18.Qd5 a4–+)) 16...d4 17.Nd1 (17.Na4 Na4 18.Ba4 cb5 19.Bb5 Rfc8–+) 17...cb5 18.Qe2 Bh6 19.f3 Ne3 20.g4 Nd1 (20...Rfc8 21.Ne3 Be3 22.gh5 gh5 23.Rb1–+) 21.Qd1 (21.Kd1 hg4 22.fg4 Bf4-/+) 21...hg4 (21...a4 22.Ba2 b4 23.gh5-/+) 22.h5 Kg7 23.hg6?? (better 23.fg4 Bf4 24.Qf3–+) 23...fg6–+ 24.Rh6 (24.fg4 Be3 25.Qe2–+) 24...Kh6 25.Qd2 Qg5 (25...Kg7 26.0-0-0 gf3 27.Kb1–+) 26.Qh2 (26.Bc1 Rf4 27.Qh2 Kg7 28.Bf4 ef4 29.fg4–+) 26...Kg7 27.Bc1 Qh5 28.Qh5 gh5 29.fg4 hg4 30.Bg5 (30.Be6 g3 31.Bf5 Rh8–+) 30...g3 31.Bh4 (31.Be7 Rf3 32.Bh4 Raf8 33.Bg3 Re3 34.Kd2 Rg3–+) 31...Rf3 32.Be6 (32.Ke2 Re3 33.Kd2 Rh8–+) 32…Rh8 (32...Rh8 33.Bg3 Rg3–+) 0–1. Oblin,Pierre (1800) – Haenssel,Christian (2085), 37th Metz Open, 2019.

6.Qe2 Bg4 7.h3 Bf3 8.Qf3 c6 9.0-0 Nbd7 10.a3 Ne5 11.Be5 de5 12.c3 Qc7 (12...b5 13.Bb3=) 13.Rd1 Nd7 14.a4 a6 15.a5 Kh8 16.d3 (16.Bf7 Bh6–+) 16...f5 17.Qg3 Nf6 18.ef5 Nh5 19.Qh4 Rf5 20.f3 Rf4 (20...Nf4!?+=) 21.Qf2+/- Rff8 22.Nd2 Rad8 23.Ne4 Bf6 24.Qa7 Rd7 (better is 24...Ra8!? 25.Qe3 Nf4+/-) 25.Nc5+– Rd6 (25...b5 26.Qc7 Rc7+–) 26.Ba6! (26.Nb7?! e4 27.Qb6 Rd7 28.Qc7 Rc7+–; < 26.Qb7 Qb7 27.Nb7 Ra8+–) 26...Ng3 (26...ba6 27.Qc7) 27.Qb7 Qb7 28.Nb7 Ne2 29.Kf2 Nc3 30.Rdc1 (30...e4 31.Nd6 e3 32.Kf1 ed6 33.Bb7 e2 34.Kf2+–) 1–0. b4_player (2230) – lennart (1695), GameColony.com, 2003.

6.Ng5 Ne4 7.Bg7 Kg7 8.Nf7 Rf7 9.Bf7 Kf7 10.Qf3 Nf6 11.Nc3 Nc6 12.0-0 Bg4 13.Qg3 Nd4 14.h3 Be2 15.Rfe1 Nc2 16.Ne2 Na1 17.Ra1 e5 18.Qb3 d5 19.Nc3 c6 20.Re1 Qc7 21.Ne2 Ne4 22.Qf3 Kg7 23.Qd3 Rf8 24.f3 Qb6 25.Kh2 Nf2 26.Qc3 d4 27.Qc4 e4 28.Nd4 ef3 29.Ne6 Kh8 30.Nf8 Qc7 31.Kg1 Nh3 32.gh3 Qg3 33.Kf1 Qg2 0–1. Adjailton (1700) – HicldeNinja, lichess.org, 2017.

5.Bc4 Nc6

6.a3 e5 7.d3 Bg4 8.h3 Bd7 9.0-0 0-0 10.Nc3 a6 11.Nd5 b5 12.Bb3 a5 13.Nf6 Qf6 14.c3 a4 15.Bd5 Rac8 16.d4 ed4 17.cd4 Ne7 18.e5 de5 19.de5 Qb6 20.Bf7 Rf7 21.Qd7 Rcf8 22.e6 Bb2 23.ef7 Kf7 24.Ng5 Kf6 25.Nh7 Kf7 26.Ng5 1–0. Rosner – Neumann, DESC 1999.

6.b5 Na5 7.Bd5+=.

5.Bc4 e5

6.Nc3 0-0 7.0-0 Nc6 8.a3 Nd4 9.Nd4 ed4 10.Ne2 Ne4 11.Bd4 Bd4 12.Nd4 Qf6 13.c3 c6 14.Bd3 d5 15.Be4 de4 16.Qe1 Re8 17.f3 Qf4 18.fe4 Qe4 19.Qf2 Qd5 20.Rae1 Re1 21.Re1 Be6 22.d3 Re8 23.Qf4 Qa2 24.c4 Bd7 25.Rf1 f5 26.Qc1 Re2 27.Ne2 Qe2 28.Re1 Qg4 29.Qc3 Qh4 30.g3 Qd8 31.Qd4 f4 32.gf4 Qh4 33.Re3 Qg4 34.Kf1 Qf5 35.Qd6 g5 36.Rg3 g4 37.Re3 c5 38.Re7 g3 39.Rd7 g2 40.Kg1 Qd7 1–0. Crafty 19.01 – Fritz 6, 2004.

6.Nc3 0-0 7.0-0 h6 8.a3 Nh7 9.Qe2 Ng5 10.Ng5 hg5 11.Qd3 g4 12.Rab1 Qe7 13.Nd5 Qd8 14.b5 c6 15.bc6 bc6 16.Ne3 a5 17.a4 Na6 18.Ba3 c5 19.Bd5 Ra7 20.Nc4 Nb4 21.Bb4 ab4 22.Nd6 Kh7 23.Nc8+– Qc8 24.Ra1 f5 25.a5 f4 26.f3 g3 27.hg3 fg3 28.Qb5 Qd8 29.Qc5?? Qh4–+ 30.Rfb1? Qh2 31.Kf1 Qh1 32.Qg1+– Qg1 33.Kg1 Bh6 34.c3 bc3 35.dc3 Be3 36.Kf1 Bf2 37.Ke2 Rc8 38.Kd3 Rc5 39.a6 Rac7 40.c4 Ra7 41.Rb7 Rc7 42.Rc7 Rc7 43.Ra5 Kh6 44.Bb7 Ba7 45.Re5 Rd7 46.Ke2 Rc7 47.Bd5 Rc8 48.Kd3 Rb8 49.Re7 Rb3 50.Kc2 Ra3 51.Ra7 Ra2 52.Kd3 Rg2 53.Bg8 Ra2 54.f4 Ra3 (55.Ke2 Kh5+–; 54...Kh5 55.Be6 Kh6 56.Bh3+–). kamret (2155) – Fetzer (1905), GameColony.com, 2003.

6.d3 0-0 7.0-0 Be6 8.Nbd2 Bc4 9.Nc4 Nbd7 10.Ne3 Nh5 11.g3 f5 12.ef5 gf5 13.Ne5+/- Ng3 14.fg3 Ne5 15.Nf5 Nf3 16.Qf3+– Bb2 17.Qd5 Kh8 18.Rae1 Qg5 19.Qb7 Rab8 20.Qc7 Be5 21.d4 Rbc8 22.Qb7 Rc2 23.de5 Rf5 24.Rf5 Qf5 25.Rf1 (25...Qc8 26.Qc8 Rc8 27.ed6+–) 1–0. Botta,Giancarlo – Federico,Giancarlo, Imperia op, 1989.

6.d4 ed4 7.Bd4 Nc6=.

5.d3

5.d3 (--> 4.d3 d6 5.e4).

5.d3 0-0 6.Be2 b5 (--> 4.d3 0-0 5.e4 d6 6.Be2 b5).

5.d4 0-0

6.Nbd2!?=.

6.Bd3 Nbd7 7.Nbd2 b6 8.0-0 Bb7 9.c4 e6 10.Qe2 c5 11.bc5 dc5 12.d5 ed5 13.cd5 Re8 14.Qd1 Ng4 (better is 14...Ne4 15.Bg7 Nd2 16.Qd2 Kg7=+) 15.Bg7+/- Kg7 16.h3 Nge5 17.Ne5 Ne5 18.Be2 Rc8 19.f4 Nd7 20.Qc2 Bd5 (20...f5=) 21.Qc3?? (better is 21.Ba6!? Be6 22.Bc8 Qc8 23.Rad1+/-) 21...Nf6 (21...Qf6 22.e5 Qc6 23.Nc4 Bc4 24.Bc4-/+) 22.e5 Ne4 23.Ne4 Be4 24.Rad1 Qe7 25.Rd6 Kg8 26.Bc4 Bf5 27.g4 Be6 28.Be6 fe6 29.Qc4 Rcd8 30.Rfd1 Rd6 31.Rd6 Rd8 (31...Qf7 32.a4=+) 32.Re6 Qf7 33.f5 Rd4?? (better is 33...gf5 34.gf5 Kh8=+) 34.Re8+– Kg7 35.f6 (35...Kh6 36.Qf7+–) 1–0. nbh999 (1940) – yorugua (2065), ChessWorld.net, 2003.

6.Bd3 Bg4 7.Nbd2 e5 8.d5 c6 9.c4 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 cd5 13.cd5 Na6 14.b5 Nc5 15.Ba3 Nd3 16.Ke2 Nf4 17.Kf1 Bf3 18.Nf3 Ne4 19.g3 Qb6 20.gf4 Qf2 0–1. Adjailton (1800) – FamilyForKing (1680), lichess.org, 2020.

6.Be2 Ne4-/+ 7.0-0 c5 8.Bd3 Bf5 (8...d5 9.Nbd2-/+) 9.Nh4 e5 (better is 9...cd4 10.Nf5 gf5 11.Be4 fe4 12.Bd4 e5=+) 10.Nf5+= gf5 11.Qf3 (11.f3 Ng5 12.f4 ef4+=) 11...Qg5 12.Be4 fe4 13.Qe4 Nc6 (13...cd4? 14.Qb7 Na6 15.Bc1+–) 14.bc5 ed4 15.cd6 Qg6 (better is 15...Rfd8=) 16.Qg6+/- fg6 17.Nd2 Rad8 18.Ne4 Be5 19.Rad1 Bd6 (19...Rf4 20.Rfe1 Bd6=) 20.Bd4?? (better is 20.Nd6 Rd6 21.Ba3+/-) 20...Nd4–+ 21.Rd4 Bh2! 22.Kh2 Rd4 23.Nc5 Rd2 24.Kg3 b6 25.Ne4 Rc2 26.Ra1 Rfc8 27.f3 Rb2 28.Kh3 Rcc2 29.g3 h5 30.Kh4 Kg7 31.Kg5 Ra2 32.Rd1 Rc7 33.Rd6 Ra4 34.Rg6 Kf8 35.Kh5 Rh7 36.Kg4 Rg7 37.Rg7 Kg7 38.Kf5 Ra3 39.f4 b5 40.g4 b4 41.g5 b3 42.Ke6 b2 43.Nd2 Re3 44.Kd5 (44.Kf5 Re1 45.g6–+) 0–1. Resch – Klein, NB op Germany, 1992.

5.Be2 0-0

6.0-0 Ne4+= 7.Bg7 Kg7 8.d3 Nf6 9.c4 Nbd7 10.Nc3 c5 11.b5 (11.a3 e5+=) 11...b6 12.Ne4 (12.d4 a6+=) 12...Bb7 13.Nf6 Nf6 14.d4 cd4 15.Nd4 Qd7 16.a4 (16.Bf3 Bf3 17.Qf3 Qg4 18.Qg4 Ng4+=) 16...h5 (16...a6 17.Re1-/+) 17.a5 ba5 18.Ra5 h4 19.h3 Qc7 20.Qd2 Ne4 21.Qb4 e6 22.f3 Ng3 23.Re1 Rfc8 24.Qb2 e5 25.b6 ab6 26.Ra8 Ba8 27.Nb5 Qc5 (27...Qc5 28.Kh2 Qf2–+ (28...Ne2?! 29.Re2 Qc4 30.Nd6 Qf4 31.Kg1 Rc1 32.Kf2–+); 27...Ne2?! 28.Qe2 Qc4 29.Qc4 Rc4 30.Nd6–+) 0–1. gtate (1820) – ncrosswell (2100), net–chess.com, 2002.

6.0-0 Ne4 7.Bg7 Kg7 8.d4 Bg4 9.d5 (9.Re1 d5=+) 9...c6 (9...e6 10.Qd3 Qf6 11.c3-/+) 10.Qd4 (10.dc6 Nc6 11.b5 Na5=+) 10...Nf6-/+ 11.h3 ½–½. aravind555 – EmrahENGIN, lichess.org, 2019.

5.Be2 e5

6.0-0 a6 7.d3 Nc6 8.a3 Bg4 9.Nbd2 Qd7 10.c4 Rd8 11.Rc1 0-0 12.Qc2 Bh6 13.b5 ab5 14.cb5 Bf3 15.Bf3 Nd4 16.Bd4 Bd2 17.Be5 de5 18.Qd2 Qb5 19.Rc7 Qb6 20.Rfc1 Ra8 21.Qa2 Qd4 22.Rb7 Rac8 23.Rc8 Qd3 24.Rf8 Kf8 25.Qf7 1–0. Adjailton (1845) – carpefi64 (1845), lichess.org, 2020.

6.Nc3 0-0 7.0-0 a5 8.b5 Nbd7 9.d3 Nc5 10.Bc1 b6 11.Be3 Ng4 12.Bg5 Nf6 13.Nd5+= Bb7 14.c4 Bd5 15.cd5 Qe8 16.Rb1 h6 17.Bf6 (17.Bd2 Nh5+=) 17...Bf6 18.Qd2 Bg7 19.Rfe1 Qd7 20.Rec1 Rfe8 21.a3 Rac8 22.Rc4 Kh7 23.a4 Re7 24.Qc3 Rf8 25.Nd2 f5 26.Bf3 f4 27.Nb3 h5 28.Nc5 dc5+= 29.Rc1 Rh8 30.Bd1 Kg8 31.h3 Kf8 32.Qb2 Bf6 33.f3 Bh4 34.Bb3 Bg3 35.Rf1 Qd6 36.Qc3 Qf6 37.Ra1 ½–½. Vettenburg,L – Morel,x, corr Belgium (year?).

5.e5 de5

6.Be5 0-0 7.Nc3 Nc6 8.Bf6 Bf6 9.b5 Nb4 10.Bc4 Bc3 11.dc3 Be6 12.Be6 Qd1 13.Rd1 Nc2 14.Kd2 Na3 15.Bb3 Nb5 16.Nd4 Rad8 17.Kc2 Nd6 18.Rhe1 c5 19.Nf3 b5 20.a4 c4 21.Ba2 ba4 22.Re7 Nb5 23.Rd8 Rd8 24.Rb7 Na3 25.Kb2 Rd3 26.Ka3 Rc3 27.Ka4 Rc1 28.Ra7 c3 29.Kb3 c2 30.Kb2 Rf1 31.Rf7 c1Q 32.Kb3 Qd1 33.Ka3 Qd3 34.Ka4 Qa6 35.Kb3 Kf7 0–1. LucasjdS2 (1690) – eem63 (1705), lichess.org, 2020.

6.Be5 Nbd7 7.Bb2 0-0 8.Bc4 c6 9.0-0 Nb6 10.Bb3 a5 11.ba5 Ra5 12.Bc3 Rh5 13.a4 Bg4 14.d3 Nbd5 15.Bb2 Qd6 16.g3 Qd7 17.Re1 Bf3 18.Qf3 Qh3 19.Qg2 Ng4 20.Qh3 Rh3 21.Bd5 Bb2= 22.Ra2 cd5?? 23.f3?? Bd4–+ 24.Kf1 Ne3 25.Ke2 Rh2# 0–1. antro – km5, Live Game Caissa's Web, 2004.

6.Ne5 0-0 7.Nc3 Qd4 8.Nb5 Qb4 -/+ (8...Qb2?! 9.Nd3 Qa1 10.Qa1=).

6.Ne5 0-0 7.Bc4 c6 8.0-0 Nbd7 9.f4 b5 10.Bb3 a5 11.ba5 (11.Nc6? Qb6 12.Nd4 a4–+ (12...ab4?! 13.Qe2=)) 11...Qa5 12.Nc6 Qb6 13.Nd4 Bb7 14.Kh1 Ne4 15.c3 Bd4 16.cd4 Qc6 (16...e6 17.Qe2=) 17.Rf3 Ndf6 18.d3 Nd6 19.Nd2 Nf5 20.Ne4 Nh4 21.Rg3 Ne4 22.de4 Qe4 23.d5 Qf4?? 24.Bc1?? Qd6 25.Rg4 Nf5 26.Bf4 Qf6 27.Rb1 Rfd8 28.Bg5 Qe5 29.Bf4 Qc3 30.Rc1 Qa5 31.Bc7= Qa6 32.Bd8 Rd8 33.Qd3 Nh6 34.Rb4 Qf6 35.Qb5+– Qg5 36.Rg1 Bc8 37.Qb6+– Rf8 38.d6 ed6 39.Qd6 Ng4 40.Qg3 Qc5? 41.Rc4 Qf5 42.Rf4+– Qd7 43.Rd1 Qd1 (43...Qd1 44.Bd1 Nh6+–). mapaj (1635) – royda, kurnik, 2012.

6.Ne5 0-0 7.Bc4 Qd6 8.0-0 Qb4 9.d3 Qb2 10.Nd2 Qe5 11.Re1 Qg5 12.Re7 Bh3 13.g3 Ng4 14.Rc7 Ba1 15.Qf3 Qd2 16.Bf7 Kh8 17.Re7 Qc1 18.Re1 Qe1 0–1. zosiaka – dardani, kurnik, 2012.

6.Ne5 0-0 7.Nf3 a5 (7...Nc6 8.b5 Nb4 9.Bc4-/+) 8.b5-/+ Nbd7 (8...e5 9.Nc3 (9.Ne5? Ng4 10.d4 Be5–+) 9...e4 10.Ne5-/+) 9.Be2 Re8 (9...e5 10.d3-/+) 10.0-0 e5 11.d3 (11.Nc3 e4 12.Nh4 Nc5–+) 11...Nd5 12.Re1 (12.Nfd2 Nc5 13.Ne4 Na4-/+) 12...N7b6 (12...Nc5 13.Qc1 Na4 14.Ba3–+) 13.c3 (13.c4 Nf4 14.Bf1 Bf5-/+) 13...Nf4 14.Bf1 (14.Nbd2 Nd3 15.Bd3 Qd3–+) 14...Bf5–+ Black prepares e4 15.d4 e4 16.Bc1 (16.Ne5 Be5 17.de5 Qd1 18.Rd1 Nd3–+ (worse is 18...Re5 19.c4 Re6 20.Bd4-/+)) 16...Nbd5 (16...Nd3 17.Bd3 ed3 18.Na3–+) 17.Ne5 f6 (17...Qh4 18.Bf4 Qf4 19.g3–+) 18.Nc4 (18.Bf4 Nf4 19.Nc4-/+) 18...Qd7 (18...Nd3 19.Bd3 ed3 20.Ne3–+) 19.Ne3? (better is 19.Bf4!? Nf4 20.Nbd2+=) 19...Ne3 (19...Nd3 20.Nf5 Qf5 21.Bd3 ed3 22.Bd2–+) 20.fe3 (20.Re3 Kh8 21.Nd2-/+) 20...Nd5 (20...Nd3!? 21.Bd3 ed3 22.Qb3 Kh8 23.Nd2–+) 21.c4 (21.a3 Bg4 22.Qc2 f5+=) 21...Nb4-/+ 22.a3 Nd3 23.Bd3 ed3 24.Nc3 c6 (24...Qf7 25.Qb3-/+) 25.a4 Rac8 (25...Qf7 26.d5 cd5 27.cd5-/+) 26.c5 Re7 27.b6 (27.Rb1 Bh6-/+) 27...Rce8 (27...Rd8 28.h3–+) 28.Bd2 Bh6 29.Qf3 Bg5 30.Nd1 (30.Qf2 Kg7-/+) 30...Bg4 31.Qf2 Be2 32.h3 (32.h4 Bh6 33.Re2 de2 34.Qe2 Kg7–+) 32...f5 (32...Kg7 33.Nb2 Re3 34.Nc4–+) 33.Qg3 (33.h4 Bh6–+) 33...Bh6 34.Qh4 Be3 35.Ne3 Re3 36.Be3 Re3 37.Qf4 (37.Kf2 Re4 38.Qf6 Rd4–+) 37...Re4 38.Qb8 Re8 (38...Kf7 39.Qc7 Ke6 40.Qd7 Kd7 41.Kf2–+) 39.Qd6 Qd6 40.cd6 Kf7 41.Kf2 (41.d5!? cd5 42.d7-/+) 41...Ke6–+ 42.Re2? (better is 42.d5 cd5 43.Ke3–+) 42...de2 43.Ke2 Kd6 44.Kd3 f4 45.h4? (45.Rf1 Re3 46.Kc4 Re4–+) 45...Re3 (better is 45...Kd5 46.Rd1–+) 46.Kc4 Rg3 47.Re1 (47.Ra2–+) 47...Rg2 48.Re8 (48.Re4 Rg4 49.Re8 f3–+ (49...Rh4?! 50.Rd8 Ke6 51.Re8 Kf5 52.Rb8–+)) 48...Rb2 49.Rf8 Rb4 (49...Rb6 50.Rf4 Rb4 51.Kc3 Ra4 52.Rf7–+) 50.Kd3 (50.Kc3 c5 51.Rf7 cd4 52.Kd3 Rb6 53.Rh7 Ke5–+) 50...Rb6 51.Rd8 (51.Rf4 Rb3 52.Kd2 Rb4–+) 51...Ke6 52.Ke4 Rb4 53.Re8 Kf7 54.Rc8 h6 55.Ke5 (55.Kf4 Rd4 56.Ke5 Rd5 57.Kf4 Rc5–+) 55...g5 56.h5 (56.hg5 hg5 57.Kf5 f3 58.Rc7 Ke8–+) 56...f3 57.Rc7 Ke8 58.Rc8 (58.Ke6 Kd8 59.Rf7 Rd4 60.Rf3 Rf4 61.Rd3 Kc8–+) 58...Kd7 59.Rf8 Ra4 (better is 59...Rb3 60.Ke4–+) 60.Rf7 (60.Rf3 Ke7 61.Rf6 Rd4 62.Re6 Kd7 63.Rh6 Rd5 64.Ke4–+) 60...Ke8 61.Rf3 Ke7 (61...Ra1!? 62.Rf6 a4 63.Rh6–+) 62.Rf6 Rd4! 63.Re6 (63.Kd4 Kf6 Deflection (63...Kf6 Overloading)) 63...Kf7 (better is 63...Kd7 64.Rh6 Rd5 65.Ke4 a4 66.Rh7 Ke6 67.Rb7 g4–+) 64.Rh6?? (64.Rf6 Ke7 65.Re6 Kd7 66.Rh6 Rd5 67.Ke4–+) 64...Rd5–+ 65.Ke4 g4 (65...Kg7!? 66.Rg6 Kh7 67.Rf6–+) 66.Rh7 (66.Kf4 Rd4 67.Ke5 Rb4–+) 66...Kf6 67.Kf4 0–1. Ivanets,Vladimir (2110) – Sobina,Pavel (1975), Voronezh RUS, 2014.

5.Bf6 ef6

6.Nc3 a5 7.b5 c6 8.d4 0-0 9.Bd3 Re8 10.0-0 Nd7 11.Qd2 c5 12.Qf4 cd4 13.Nd5 Ne5 14.b6 Rb8 15.Rad1 Be6 16.Nc7 Re7 17.Nd4+/- Nd3 18.cd3 f5 19.ef5 gf5 20.Rde1 Kh8 21.Nf5+– Bf5 22.Qf5 Be5 23.Nd5 Qd7?? 24.Ne7 Qe7 25.d4! Qf6 26.Re5! (26...Qf5 27.Rf5+–) 1–0. orane (2125) – hijack (1745), Caissa.com, 2004.

6.Nc3 f5 7.d4 fe4-/+ 8.Ne4 0-0 9.Nc3 c5 10.Rb1 Nc6 11.Bb5 Nb4 12.Ba4? Qa5–+ 13.0-0 cd4 14.Nd4 Na2! 15.Na2 Qa4 16.Nb4 a5 17.Nf3 ab4 18.Qd6 Bc3 19.Nd4 Qd7 20.Qd7 Bd7 21.Rfd1 Ra2 22.Ne2 Bf5 23.Nc3 bc3 24.Rb7 Bc2 25.Re1 Rc8 26.Rd7 Kg7 27.Kf1 Bb3 28.Rde7 Bc4 29.Kg1 c2 30.R7e4 (30.Rc1 Be6 31.Kf1–+) 0–1. EXchess 3.11 – Fritz 6, 2004.

6.d4 0-0 7.Nc3 (7.Bd3 d5 8.ed5 a5=) 7...Nc6 8.b5= Ne7 9.Bc4 b6 10.0-0+= Bg4 11.h3 Bd7 12.a4 c6 13.bc6 Bc6 14.Bb5 (14.Re1 f5 15.Bb5 fe4 16.Ne4 Re8=) 14...Bb7= 15.Re1 f5 16.Ra3 Nc6 (better is 16...fe4!? 17.Ne4 a6=) 17.ef5+/- Ne7 18.fg6 Ng6 19.Ne4 f5 (19...a6 20.Bf1+/-) 20.Neg5 Bf6? (better is 20...Nh4 21.d5 Nf3 22.Nf3 Rc8+/-) 21.Ne6+– (21.Ne6 Qc8 22.Nf8 Nf8 23.Qd2+–) 1–0. pozarski (2090) – Pak_Su, GameColony.com, 2002.

6.d4 a5 7.ba5 0-0 8.Bd3 d5 9.0-0 de4 10.Be4 f5 11.Bd3 Ra5 12.Nbd2= Re8 13.Re1 Bd7 14.Re8 Qe8 15.c3 Bc6 16.Qb3 Bd5 17.c4 Bc6 18.Re1 Qf8 19.Qb1 Qc8 20.d5 Be8 21.Nb3 Ra3 22.Nfd4 Bd7 23.c5 Ra4 24.Nb5 Rb4 25.Na3 Qd8 26.Nc4 Bb5 27.Ne3 f4= 28.a3 Bd3 29.Qd3 Rb3 30.Qb3 fe3 31.Qe3 Bf8 32.Rd1 Na6 33.d6 Qd7 34.Qh3 Qd8 35.Qe3 Qd7 36.Qh3 Qd8 37.Qe3 ½–½. Fritz 5.32 – Crafty 19.01, 2004.

6.d4 f5 7.Bd3 Nc6 8.c3 fe4 9.Be4 d5 10.Bd3 Qe7 11.Qe2 Qe2 12.Be2 Bf5 13.Bb5 a5 14.Bc6 bc6 15.ba5 Ra5 16.Nbd2 0-0 17.Nb3 Ra3 18.Nh4 Bc2 19.Kd2 Bb3 20.ab3 Rb3 21.Rhb1 Bh6 22.Kd3 Rfb8 23.Rb3 Rb3 24.Ra8 Kg7 25.Ra2 Kf6 26.Nf3 Bf4 27.g3 Bd6 28.Nd2 Rb8 29.c4 Ke6 30.c5 Be7 31.h3 Bf6 32.Ra7 Kd7 33.Ra4 Bg7 34.f4 f5 35.Kc2 Re8–+ 36.Kd3 Rc8 37.Nf3 Rb8 38.Kc2 h5 39.Ra3 Rb4 40.Kc3 Rb5 41.Ne5 Ke6 42.Ra7 Be5 43.fe5 h4 44.gh4+/- Kd7 45.e6! Ke6 46.Rc7 Ra5 47.Rc6 Kf7 48.Kb4 Ra2 49.Rd6+– Rb2 50.Ka5 f4 51.h5 gh5 52.Rd5 Kg6 53.h4?? Ra2 54.Kb6 Rb2 55.Kc6+– Rh2 56.Rg5 Kh6 57.Rf5 Rh4 58.d5 Kg6 59.Rf8 Kg7 60.d6 Kf8 61.d7 Ke7 62.Kc7 Rh2 63.d8Q Ke6 64.Qg5 Rf2 65.c6 Rf1 66.Qg2 Re1 67.Qh3 Kf7 68.Qh5 Kf8 1–0. Fritz 6 – Doctor? 3.0, 2004.

5.Bf6 Bf6

6.d4 a5 7.b5 c5 8.c3 Bg4 9.dc5 Qc7 10.cd6 Bc3 11.Nbd2 Qd6 12.Rc1 Qa3 13.Qc2+= Bg7 14.h3 Be6 15.Bc4 Bc4 16.Nc4 Qb4 17.Ncd2 0-0 18.Qb1 Nd7 19.Rc7 Qd6 20.b6 Nb6=+ 21.Rb7 Rfb8 22.e5 Qd8 23.Rb8 Rb8 24.Qe4 Qd5 25.Qd5 Nd5 26.0-0 Nc3 27.a3 Rc8 28.Re1 e6 29.g4 Bf8 30.Ra1 Ne2 31.Kg2 Nf4 32.Kg3 Nd3 33.Ne4 Bg7 34.Nf6 Bf6 35.ef6 Rc3 36.Nd2 Ne5 37.f3 h6 38.Kf4 Nd3 39.Ke3 Nb4 40.Kf2 Nd5 41.Ne4 Rd3 42.Rb1 Ra3 43.Rb8 Kh7 44.Rf8 Nf4 45.Rf7 Kg8 46.Rg7 Kf8 47.Nc5 Nh3 48.Kg2 Ng5 49.Nd7 Ke8 50.Ne5 Kf8 51.f4 Ra2 52.Kf1 Ra1 53.Ke2 Ra2 54.Kd3 Ra3 55.Kc4 Ra4 1–0. Doctor? 3.0 – Comet B50, 2004.

6.d4 a5 7.b5 Bg4 8.Be2 c5 9.bc6 Nc6 10.c3 0-0 11.0-0 a4 12.Bb5 Qb6 13.Na3 Rfc8 14.Rb1 Qa5 15.Nc4 Qc3-/+ 16.Nb6 Nd4 17.Be2 Ne2 18.Qe2 Bf3 19.Qf3 Ra6 20.Nc8= Qc8 21.Rb4 b6 22.Qd3 a3 23.Rc4 Qd7 24.Rfc1 Ra8 25.Rc6 Bb2 26.R1c2 Qe6 27.Qc4 Qg4 28.Qd5 Rb8 29.Rc7 Kf8?? 30.Re7!+– Ke7 31.Rc7 Qd7 32.Rd7 Kd7 33.Qf7 Kc6 34.Qh7 Rf8 35.Qg6 Bd4 36.e5 Bf2 37.Kh1 Bc5 38.h4 Rf4 39.g3 Rd4 40.e6 Rd1 41.Kg2 Rg1 42.Kh3 Rh1 1–0. EXchess 3.11 – Comet B50, 2004.

6.d4 Bg4 7.Be2 d5 8.e5 Bg7 9.0-0 0-0 10.Qd3 Nd7 11.Nc3 Bf5 12.Qe3 c6 13.Rfc1 Qc7 14.Nh4 Be6 15.Re1 a5 16.a3 (16...Ne5 17.Qf4=+). Fritz 6 – Fritz 5.32, 2004.

4.g3 a5

5.a3 a4 6.Bg2 c6 7.c4 0-0 8.Nc3 d5 9.cd5 Nd5 10.0-0 Nc3 11.Bc3 Bc3 12.dc3 Bf5 13.Nd4 Bc8 14.e4 e5 15.Nf3 f6 16.Qc2 Be6 17.Rad1 Qe7 18.c4 Nd7 19.Qc3 Nb6 20.Nd2 Qf7 21.Rc1 Rfd8 22.c5 Nc8 23.Nc4 Bc4 24.Qc4 Qc4 25.Rc4 Rd3 26.Ra1 Ne7 27.Bf1 Rb3 28.Rc2 Rd8 29.Bc4 Kg7 30.Bb3 ab3 31.Rc3 b2 32.Rb1 Rd2 33.Rb3 f5 34.R3b2 Rd3 35.Rb3 Rd2 36.ef5 Nf5 37.R1b2 Rd1 38.Kg2 Nd4 39.Re3 Kf6 40.a4 Ra1 41.b5 Ra4 42.bc6 bc6 43.Rb6 Rc4 44.f4 Rc5 45.fe5 Ke6 46.Re4 Nf5 47.g4 Rc2 48.Kh3 Nh6 49.Re3 Rc4 50.Rb7 Ng4 51.Rg3 Nf2 52.Kg2 Ng4 53.Rh7 Ne5 54.Re3 Kf5 55.Rf7 Nf7 56.Rf3 Ke6 57.h3 Rc2 58.Kg3 Ne5 59.Re3 Rd2 60.Kf4 Rd4 61.Kg5 c5 62.h4 c4 63.h5 gh5 64.Kh5 c3 65.Kh6 c2 66.Rc3 Rd2 67.Kg5 Nd3 68.Rc6 Kd5 69.Rc3 c1Q 70.Rb3 1–0. mapaj – krzysztofkm, kurnik, 2012.

5.b5 (--> 1.b4 Nf6 2.Nf3 g6 3.g3 a5 4.b5 Bg7 5.Bb2).

5.a3 ab4

6.ab4 Ra1 7.Ba1 d6 8.d3 c6 9.Nbd2 Qb6 10.c3 0-0 11.Bg2 e5 12.0-0 h6 13.Bb2 Nh5 14.Qa4 f5 15.Ra1 Qc7 16.Qa5 Qe7 17.c4 e4 18.Bg7 Kg7 19.Nd4 e3 20.N2f3 ef2 21.Kf2 f4 22.e4 fe3-/+ 23.Ke2 g5 24.Rf1 c5-/+ 25.bc5 dc5 26.Nb3 Nd7 27.Qc3 Kh7 28.Qc1 Re8 29.d4 Nhf6 30.Qc2 Kg7 31.d5 b6 32.Nc1 Ba6–+ 33.Nd3 Ne4 34.Ra1= Bc8 35.Ra7 Qf6 36.Nde5 Re5 37.Ne5+= Qf2 38.Kd3+/- Nd2?? 39.Qc3 Nb1+/- 40.Ng4 Nc3 41.Nf2 e2 42.Kd2 Kf6 43.Rc7 Ne5 44.Rc8 Nc4 45.Ke1 Ne3 46.Ne4 Ke5 47.Nc3 Ng2 48.Ke2 Kd4 49.Kf2 Ne3 50.Nb5 Kd3 51.d6 Ng4 52.Kg2 Ne5 53.d7! Nd7 54.Rd8 Kc4 55.Nd6 Kb4 56.Rd7 c4 57.Kf2 c3 58.Ke2 1–0. Bjarnason,Saevar – Ireton,Tom, EU–ch U20 fin–C, 1971.

6.ab4 Ra1 7.Ba1 d6 8.Bg2 0-0 9.0-0 e5 10.d3 Nc6 11.b5 Ne7 12.c4 b6 13.Nfd2 Nd7 14.Qa4 Nc5 15.Qa7 Be6 16.Nc3 Qb8 17.Qb8 Rb8 18.Bb2 f5 19.Ra1 f4 20.Ra7 Rc8 21.Nde4 Ne4 22.Ne4 Bf5? 23.Nd6!+– cd6 24.Re7 Bf8 25.Rb7 Bg7 26.Bd5 Kh8 27.Rb6 fg3 28.hg3 h5 29.Rd6 h4 30.gh4 Bf8 31.Be5 Kh7 32.Rc6 Ra8 33.Rc7 Kh6 34.Ba8 Bc5 35.Bf3 g5 36.Rc6 Kh7 37.Rc5 gh4 38.b6 Kg6 39.b7 Kg5 40.b8Q Bg6 41.Qd8 Kf5 42.Qf6# 1–0. wictorio (1870) – lizard1 (1770), kurnik, 2012.

5.ba5 Ra5

6.Bg2 0-0 7.0-0 d6 8.d3 Bd7 9.Nbd2 Qc8 10.Re1 Bh3 11.Bh1 Rh5 12.Nf1 e5 13.e4 Ng4 14.Ne3 f5 15.ef5 Ne3 16.Re3 Rhf5 17.Re4 g5 18.g4 Rf4 19.Ng5 Bg4 20.f3 Qf5 21.Bg2 Re4 22.de4 Qg5 23.fg4 Qe3 24.Kh1 Nc6 25.Bc1 Qc3 26.Bd2 Qc5 27.Rb1 Rf2 28.Rb7 Qd4 0–1. Lang,S – Rdezepovic,I, Nuernberg 1990. =1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.ba5 Ra5)

6.Bg2 Rb5 7.Qc1 Nc6 8.0-0 Nb4 9.a3 Nbd5 10.c4 Rc5 11.d4 (11.cd5 Rc1 12.Rc1 c6-/+) 11...Rc6 12.e4 Nb6 13.d5 Rc5 14.Bd4 Rc4 15.Qb2 Ra4 16.Nbd2 Ra8 17.Rac1 d6 18.Nc4 Nc4 19.Rc4 e5 20.Be3 Ng4 21.Bd2 h5 22.h3 Nf6 23.Qc2 Ng8 24.Rc7 Bf6 25.Bg5 Bg5 26.Ng5 Nh6 27.Nf7 Nf7 28.h4 g5 29.Rc1 0-0 30.Qe2 gh4 31.Qh5 hg3 32.Qg6 Kh8 33.Rf7 Rf7 34.Qf7 gf2 35.Qf2 Qg8?? 36.Kf1 Ra3?? 37.Qh4 Qh7 38.Qh7 Kh7+– 39.Rc8 b5 40.Rb8 Rb3 41.Ke1 Kg6 42.Rb6 Kg5 43.Rd6 Rb1 44.Kf2 Rb2 45.Kg3 Rb3 46.Kh2 Rb4 47.Re6 Kf4 48.Rf6 Kg5 49.Rf5 Kg6 50.Re5 Rd4 51.Re6 Kf7 52.Rb6 Rb4 53.Kg3 Ke7 54.Kf4 Kd7 55.Bh3 Kc7 56.Rc6 Kb7 57.Bd7 Rb1 58.Rc2 b4 59.Ba4 Rf1 60.Ke5 Rb1 61.d6 Kb6 62.d7 Ka5 63.d8Q Ka4 64.Qa8 Kb3 65.Rf2 Kc3 66.Qc6 Kd3 67.Qd5 Ke3 68.Ra2 b3 69.Ra3 Ke2+– 70.Rb3 Rb3 71.Qb3 Kd2 72.Kf5 Ke2 73.e5 Kf2 74.e6 Kg2 75.e7 Kh2 76.e8Q Kh1 77.Qe1 Kh2 78.Qbg3# 1–0. linakip – min2lis, kurnik, 2011.

4.g3 Na6

5.a3 c5

6.b5 Nc7 7.a4 0-0 8.Bg2 d5 9.0-0 Bf5 (9...a6 10.Na3+=) 10.d3 Qc8 (10...a6 11.Na3+=) 11.Re1 (11.Nbd2 a6=) 11...Rd8 (11...a6 12.Na3=) 12.Qc1 (12.e3 Bg4=) 12...Bh3 (12...d4 13.Nbd2=) 13.Bh1 (13.Be5 Bg2 14.Kg2 a6=) 13...Qf5 (13...Ne6 14.Bg2 Bg2 15.Kg2+=) 14.Qf4 (14.Nc3 Bg4+=) 14...Qc8 15.e4 (15.Qc1 a6+=) 15...Nh5 Black prepares the advance d4 (15...de4!? 16.de4 h6-/+) 16.Qc1= d4 (16...f6 17.ed5 Nd5 18.Nc3+=) 17.Na3 Ne6 (17...Ne8 18.e5+=) 18.Nc4 Nf6 (18...Nef4 19.Qd1=) 19.Qb1 (19.Ng5 Ng5 20.Qg5 Be6=) 19...Ng4 (19...Ne8 20.Nfd2=) 20.Bc1 h6 (20...Qc7 21.Bg2 Bg2 22.Kg2+=) 21.Bd2+= Kh7 (21...Qc7 22.Bg2 Bg2 23.Kg2+=) 22.Qb3 (22.Bg2 Bg2 23.Kg2 Qc7+/-) 22...f6 (22...h5 23.Bg2 Bg2 24.Kg2+/-) 23.Bg2 (23.e5 Rf8+/-) 23...Bg2 24.Kg2 Ne5 25.Nfe5 fe5 26.f3 (26.a5 Qd7+/-) 26...g5 (26...Ng5 27.Bg5 hg5 28.h3+=) 27.Rf1 (27.a5 Qd7+/-) 27...Bf6 (27...h5 28.Kh1+=) 28.Na5 (28.a5 Qd7+/-) 28...Rb8 29.Nc4 Rg8 (29...Ra8 30.a5+/-) 30.h3 (30.a5!?+/-) 30...h5= 31.g4 (31.a5 h4 32.g4 Qd7=) 31...Rg7 (31...Kg6 32.Rh1=) 32.a5 (32.Rg1 h4=) 32...Qd7 33.Rab1 (33.a6 b6=) 33...Rbg8 (33...Kg6 34.Ra1=) 34.Rh1 (34.Rfe1 Kg6=) 34...Nf8 (34...h4 35.Nb2=) 35.Be1 (35.Kf2 Ne6=) 35...Ng6 36.Bg3 (worse is 36.gh5 Nf4 37.Kf1 g4 (37...Nh3?! 38.h6 Kh6 39.Bg3+=; 37...Nh5?! 38.Ke2=) 38.hg4 Rg4-/+) 36...Rf8 (36...Nf4 37.Bf4 gf4 38.Kf2=) 37.Rbf1 (37.Qa3 Rc8=) 37...Rgf7 (37...h4 38.Bh2=) 38.Rf2 (38.gh5 Nf4 39.Kf2 Bg7=) 38...Bg7 (38...h4 39.Bh2=) 39.Qb1 (39.gh5 Nf4 40.Bf4 Rf4+=) 39...Nh4 (39...Kh6 40.b6 a6 41.Rg1+=) 40.Bh4= gh4 41.Rhf1 (41.Qb2 Qe6 42.Qa1 Bh6+=) 41...Rf4 (41...Qe6 42.Qe1=) 42.b6 (42.Kg1 Kg6=) 42...a6 43.Qa1 Qe6 44.Qe1 (44.Qa3 hg4 45.fg4 Rg4 46.hg4 Qg4 47.Kh1 Qg3 48.Rf8 Qh3 49.Kg1 Qg3 50.Kh1 Qh3 51.Kg1 Qg3 52.Kh1=) 44...Bh6+= (worse is 44...hg4 45.fg4 Qf6 46.Rf4 ef4 47.Nd2+/-) 45.Qe2 (45.Kg1 Bg5+=) 45...R4f7 46.Rb1? (better is 46.Rg1+=) 46...hg4–+ 47.hg4 Rf3 48.Qf3 (worse is 48.Rf3 Qg4 49.Kh2 Rf3 50.Qf3 Qf3 51.Re1 Qf2 52.Kh1 Bf4 53.Ne5 Qh2) 48...Rf3 49.Kf3 Bf4 50.Rg1 Kg6 (better is 50...Qg6!?–+) 51.Kg2 Be3 (51...Kf6 52.Kh3–+) 52.Rf5 Bg1 53.Kg1 (53.Ne5 Kg7 54.Rg5 Kf6 55.Rf5 Qf5 56.gf5 Ke5 57.Kg1 e6 58.fe6 Ke6+=) 53...Kg7 54.Rg5 Kf8 55.Kg2 (55.Kh2 Qh6 56.Rf5 Kg8–+) 55...Qh6 56.Rf5 Kg8 57.Kh3 Qc1 58.Kh4 Qc2 59.Rf3? (better is 59.Rg5 Kf7 60.Rf5 Kg7 61.Rg5 Kf8 62.Rf5 Ke8 63.Re5–+) 59...Qh2 60.Kg5 (60.Rh3 Qf4 61.Kh5–+) 60...Qh8 61.Ne5 (61.Rf2 Kg7 62.Kf5 Qf8 63.Ke6 Qf2 64.Ke7 Qf3–+) 61...Qe5 62.Rf5 Qd6 63.Rd5 (63.e5 Qe6 64.Kf4 Qh6 65.Kg3 c4 66.dc4 d3–+) 63...Qf6 64.Kh5 White plans g5 64...Kh7 65.g5 Qf3 (65...Qf3 66.Kh4 c4 67.dc4 d3–+) 0–1. Birkisson,Bardur Orn (2160) – Trent,Lawrence (2425), chess.com IoM Masters, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 Na6)

6.b5 Nc7 7.a4 d5 8.Bg2 0-0 9.0-0 d4 (9...a6 10.b6 Ne6 11.a5=) 10.e3 (10.c3 d3=) 10...Nh5 (10...Ne6 11.a5=) 11.ed4 cd4 12.Re1 (12.c3 d3=) 12...Re8 (12...Ne6 13.c3=) 13.Ne5+= f6 (13...Nf6 14.Qf3+=) 14.Nd3 Bf8 (14...f5 15.f4+/-) 15.c3 (15.f4 Ng7+=) 15...dc3 16.dc3 e5 17.Na3 (17.Ba3 Bf5 18.Qb3 Be6+=) 17...Rb8 (17...Bf5 18.Qb3 Ne6 19.Nb4=) 18.Nc4 (18.Qb3 Be6 19.c4 Qd7+=) 18...Be6= 19.Ne3 Nd5 20.Qe2 (20.Qf3 Nb6 21.g4 Qd3 22.gh5 Bb3 23.Qf6 Na4 24.Ra4 Qd2+–) 20...Ne3 (20...Ng7 21.Ng4=) 21.Qe3 (21.fe3? Bc4 22.Rad1 e4–+) 21...Bd5 22.Nb4 (22.Rad1 Bg2 23.Kg2 Qd5 24.f3 Qb3 25.Qa7 Rbd8=) 22...Bg2 23.Red1 (23.Kg2 Qc8=) 23...Qc8 (23...Qa5 24.Kg2 Bb4 25.cb4 Qb4 26.Ba3=) 24.Kg2= f5 (24...Qc4 A) 25.Qa7? Bc5 (25...Bb4?! 26.cb4 Qb4 27.Bc1=) 26.Qa5 Qe4 27.Kg1 b6–+; B) 25.Qd2=) 25.Qe2 (25.Qa7?? Bc5 26.Qb8 Qb8–+) 25...Qe6 (25...e4 26.Nd5=) 26.Nd5+= Rbc8 27.c4 Bg7 28.Re1 (28.a5 Nf6=) 28...Qf7 (28...Nf6 29.Rad1=) 29.Rad1 h6 (29...Nf6 30.a5=) 30.Ba3 (30.b6 ab6 31.Nb6 Rc6=) 30...Kh7 (30...Nf6 31.a5=) 31.Bd6 (31.b6 ab6 32.Nb6 Rcd8=) 31...e4 32.c5 White intends b6 32...Be5 (32...Nf6 33.Nf6 Bf6 34.Qe3=) 33.b6+= ab6 34.Nb6 Rc6 35.Qc4 Qc4 36.Nc4 Bd6 37.Nd6 Re7 38.g4 Nf4 39.Kg3 Ne6 40.gf5 gf5 (40...Nc5 41.f6 Rd7 42.Ne8 Rd1 43.Rd1+=) 41.Nf5 Rf7 42.Nd4 (42.Nd6 Rg7 43.Kh4 Nc5 44.Ne4 Na4=) 42...Nd4= 43.Rd4 Rg6 44.Kh4 Rf4 45.Kh3 Rf3 46.Kh4 Rf4 ½–½. Czebe,Attila (2465) – Antoniewski,Rafal (2535), TCh–SVK, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 Na6)

6.c3 d5=+ 7.Bg2 0-0 8.0-0 Bf5 9.d3 Re8 (9...Qd7 10.Qd2=+) 10.Nbd2 e5 11.Qc2 e4 12.Nh4 Bg4 13.de4 de4 14.Be4 (14.Ne4!? Ne4 15.Be4 cb4 16.Bb7 ba3 17.Ba8 ab2 18.Ra6 Qa8 19.Qa4=) 14...Ne4=+ 15.Ne4 cb4 16.ab4 Qb6 17.Rad1 (17.Ba3 Rac8 18.Qd3 Red8-/+) 17...Nb4 18.cb4 Bb2 19.Nd6 Re2 20.Qc4 Re6 21.Qg4 Rd6 22.Rd6 Qd6 23.Rd1 Qc6 24.Nf5 Re8 25.Ne3 a6 26.h4 h5 27.Qd7 Bc3 28.Qc6 bc6 29.Rd6 Bb4 30.Rc6 a5 31.Nd5 Rb8 32.Kf1 Rb5 33.Nb4 ab4 34.Rc2 f6 35.Ke2 g5 36.Kd2 b3 37.Rb2 gh4 38.gh4 Kf7 39.f3 (39.Kc1 Kg6 40.Rd2 Rc5 41.Kb1 Rc2-+) 39...Ke6 40.Kc1 (40.Kd3-+) 40…Ke5 0-1. marekt (2415) - endre969 (2420), ChessWorld.net, 2012. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2)

5.a3 d5

5.b5 Nc5

6.c4 Nce4 7.Bg2=.

6.Bg2 d5=.

4.g3 b5

5.Bg2 Bb7 6.0-0 0-0 7.a4 ba4 8.c4 d6 9.Qa4 Nbd7 10.Na3 c5 11.Rfb1 Nb6 12.Qb3 cb4 13.Qb4 Rb8 14.Qa5 a6 15.d3 Nbd7 16.Qd2 Nc5 17.Qd1 Qc7 18.e4 Bc6 19.Ra2 Ba4 20.Qe2 Bb3 21.Raa1 Na4 22.Bd4 e5 23.Bb2 Nb2 24.Rb2 Ba4 25.Rba2 Nd7 26.Nc2 Bc2 27.Qc2 Nc5 28.Bf1 Rb6 29.Ne1 Bh6 30.Qd1 Rfb8 31.Nc2 Rb2 32.Ne3 Qd7 33.Nd5 Kg7 34.Qf3 Bg5 35.h4 Bd8 36.Qe3 Ra2 37.Ra2 Rb1 38.Kg2 Rb3 39.f4 ef4 40.Qf4 a5 41.e5 Ne6 42.Qe3 de5 43.Qe5 f6 44.Qa1 Qb7 45.Rf2 Qf7 46.Qa2 Rb7 47.Kh2 Ra7 48.Qa4 Nc7 49.Nc3 Be7 50.Bg2 Bb4 51.Ne4+= Be7 52.d4 f5 53.d5 Ne8 54.c5+/- Qd5 55.Nd6 Qg8?? 56.Ne8+– Kh6 57.Nd6 Rd7 58.Qa5 Bd6 59.Qd2 f4 60.cd6 Qe6 61.Qf4 Kg7 62.Rd2 h5 63.Bh3 Qf7 64.Bd7 Qd7 65.Re2 Qc6 66.Re7 Kg8 67.d7 (67.d7 Qc2 68.Kh3 Qh2 69.Kh2 g5 70.d8Q#; 67.Qf7 Kh8 68.Qf8#) 1–0. Belunek,V (2295) – Pekarkova,E (2010), Tatry Open, Tatranske Zruby SVK, 2008.

5.a4 ba4

6.Ra4 0-0 7.Bg2 Bb7 8.0-0+= d6 9.d3 Nbd7 10.Nbd2 c5 11.Qc1 Qc7 12.bc5 Nc5 13.Ra3 Rfb8 14.c4 Bc6 15.Bc3 Nh5 (15...a5!?+=) 16.Bg7+= Ng7 17.Qc3 (17.d4 Nd7+=) 17...Na4 18.Qa1 Nc5 19.Qa2 a6 (19...e5 20.e3=) 20.Rd1 (20.d4 Nd7+=) 20...e5 21.e3 Rb6 (21...a5 22.d4 ed4 23.ed4=) 22.d4 Nd7 23.c5 dc5 24.dc5 Nc5 25.Nc4 Rb5 26.Nce5 Bb7 27.Rc1 Qe7 28.Rac3 Nce6 29.Nc6+/- Qf6 30.Nfd4 Rb6 31.Rb3 Rb3 32.Qb3 Bc6 33.Nc6 Re8 34.Nb4 Rd8 35.Nd5 Qe5 36.Qb7 Nf5+/- 37.f4 Qb8 38.Qa6 Qb3 39.Qc4 Qc4 40.Rc4 Rb8 41.Rc2+– h5 42.Kf2 Kg7 43.h3 Rb3 44.g4 Nd6 45.g5 Rb8 46.Nf6 Rc8 47.Rc8 Nc8 48.Bd5 Nc5 49.e4 Nd6 50.Ke3 Kf8 51.Kd4 Na6 52.Bb3 Ke7 53.Nd5 Kf8 54.Ba4 Ne4+/- 55.Ke4 Nc5 56.Ke5 Na4 57.f5 Kg7 58.f6 Kf8 59.Kd4 Ke8 ½–½. Soppe,G (2420) – Barria Yaitul,A (2070), VI Memorial Pereyra, Mendoza ARG, 2007.

6.Ra4 Bb7 7.Bg2+= d6 8.d3 (8.Nc3 c5+=) 8...Nbd7= 9.Nbd2 (9.0-0 0-0=) 9...c5 10.Qa1 (10.b5 a6 11.ba6 Ba6=) 10...cb4 (10...Nb6 11.Ra7 cb4 12.e4=) 11.Rb4 Bc6 (11...Nc5 12.Bd4 a5 13.Rb2=) 12.Rc4 Bb5 (12...Bd5 13.Ra4 Qc7 14.Ra5=) 13.Rc3+= Qb6? (better is 13...e5+=) 14.Nd4!+– Rb8 (14...Qd4 15.Ba8) 15.Rb3 (15.Nb5?! Qb5 16.Rb3 Qc5 17.Rb8 Nb8 18.Qa4 Kd8+/-) 15...a6 16.c4 Ng4?! 17.cb5 Nc5 18.Rb4 e5 19.Nc4 Nd3 20.ed3 Qc5 21.0-0 (21.0-0 ed4 22.Re1 Ne5 23.Ne5 de5 24.Rc4+–; 21.Ba3!? Qd4 22.Qd4 ed4 23.ba6 Rb4 24.Bb4 Kd7 25.Bd6 Re8 26.Kf1 Ne5 27.Be5 Be5+–) 1–0. Davies,Nigel R – Bec,W, It (open), Lyons (France), 1990. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b5 5.a4 ba4)

6.Ra4 d5 7.Bg2=.

6.Bg2 0-0=.

4.g3 b6

5.c4 Bb7

6.Bg2 0-0 7.0-0 d6 8.Qc2 Nbd7 9.d3 e5 10.Nbd2 Qe7 11.Nb3 c5 12.bc5 dc5 13.Nfd2 Bg2 14.Kg2 Ng4 15.h3 Nh6 16.Ne4 f5 17.Nc3 f4 18.Nd5 Qg5 (18...Qd6 19.Nd2 Nf6 20.Nf6 Qf6 21.Rae1=) 19.Nd2 fg3 20.fg3 Nf5 21.Ne4 Qd8 22.Rf3 Nf6 23.Nef6 (23.Be5? Nd5 24.Qb2 Be5 25.Qe5 Nde3 26.Kg1 Qd4 27.Qd4 cd4–+) 23...Bf6 24.e4 Nd4 25.Bd4 (< 25.Nf6 Rf6 26.Bd4 Rf3 (< 26...ed4 27.Rf6 Qf6 28.Rf1=; < 26...cd4 27.Rf6 Qf6 28.Rf1=; < 26...Qd4 27.Rf6 Qa1 28.Qa4 Qb2 29.Rf2+=) 27.Kf3 Qd4=+) 25...ed4 26.Raf1 Bg7 27.Rf8 Bf8 28.Qf2 Bg7 29.Qf7 Kh8 30.Nc7 Rb8 31.Ne6+– Qg8 32.Qd7 b5?? 33.cb5 Bh6 34.g4 Be3 35.Rf7 c4 36.dc4 d3 37.Rg7 Qe8 38.Rh7 Kg8 39.Qg7# 1–0. Steiner,Thomas – Herb,Stefan, Augsburg Afro op, 1994.

6.Bg2 0-0 7.0-0 d6 8.d4 Nbd7 9.d5 e5 10.de6 fe6 11.Ng5 Bg2 12.Kg2 (better is 12.Ne6!? Qe8 13.Nf8 Bf1 14.Nd7 Qd7 15.Qf1+=) 12...Qe7-/+ 13.Qc2 Nh5 14.Bg7 Ng7 (14...Qg7? 15.Ne6 Qa1 16.Nc3 Qf1 17.Kf1+–) 15.Ne4 d5 16.cd5 ed5 17.Ned2 Nf6 18.e3 Rac8 19.Qb3 Kh8 20.Nc3 Rfd8 21.Nb5 a6?? (better is 21...c6 22.Na3 Nf5+=) 22.Na7+– Ra8 23.Nc6 Qd6 24.Nd8 Rd8 25.Rfd1 c5 26.Nc4! Qc6 (26...dc4 27.Rd6 Pinning (27.Rd6 Deflection; 27.Rd6 Clearance)) 27.Ne5 Qc7 28.Rac1?? (better is 28.Nf3+–) 28...Qe5+= 29.bc5 bc5 30.Rc5 Qd6 31.Ra5 h6 (31...Qc6!?+=) 32.Qb7 Qe5 33.Qa6 Qe4 34.Kg1 Qf3 35.Qf1 Ng4 36.Rd4 Ne6 37.Rda4 Rf8 (37...d4!? 38.ed4 Nd4–+) 38.Ra8= Kh7?? (38...Ra8 39.Ra8 Kh7 40.Ra7 Kg8 41.h3=) 39.R4a7 Ng7 40.Rf8 Qf8 41.a4 Qc5 42.Qb5?? Qa7–+ 43.a5 Qf7 44.Qf1 Qe7 45.a6 Qa7 46.f4 Ne3 (46...Ne3 47.Qe2 Nc4 48.Kg2 Qa6–+) 0–1. Gimeno,Francisco – Cortes,Martin Gustavo, Internet Section, 2003. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6)

5.Bg2 0-0

6.0-0 Bb7 7.c4 d6 8.d3 Nbd7 9.Nbd2 c5 10.b5 Re8 11.Nb3 (11.Qb3 d5=) 11...Rb8 (11...e5 12.Qd2=) 12.d4 (12.Qd2 Ra8=) 12...cd4 13.Nbd4 Nc5 14.a4 Nfd7 15.Re1 Ne5 (better is 15...Rc8!?=+) 16.Ne5+= Be5 17.Nc6?? (better is 17.Bb7 Bd4 18.Qd4+=) 17...Bc6–+ 18.Bc6 Rf8?? (better is 18...Bb2 19.Ra2 Bc3 20.Be8 Be1 21.Bf7 Kf7 22.Qe1 a6–+) 19.Be5+= de5 20.Bd5 e6 21.Bg2 Qc7 22.Qc2 Rbd8 23.Red1 Rd1 24.Rd1 Rd8 25.Rd8 Qd8 26.Qc3 Qd4=+ 27.Qd4 ed4-/+ 28.e3 de3 29.fe3 Na4 30.Kf2 Nb2 31.Bf1 Na4 32.Kf3 Kf8 33.Kf4 f6 34.g4 Ke7 35.h4 Kd6 36.e4? e5–+ 37.Ke3 Kc5 38.Kd3 Kb4 39.g5 fg5 40.hg5 Nb2 41.Kc2 Nc4 42.Bh3 Kb5 43.Bd7 Kc5 44.Be6 Kd4 0–1. gbsr (2240) – kostaspetidis (2310), net–chess.com, 2003.

5.Bg2 Bb7

6.0-0 a5 7.a3 0-0 8.c4 d5 9.Nd4 h6 10.d3 dc4 11.dc4 Bg2 12.Kg2 ab4 13.ab4 Ra1 14.Ba1 Ng4 15.h3 Ne5 16.Qb3 c6 17.f4 c5 18.Nf3 Nf3 19.Kf3?? Ba1 20.Rd1 Qc7 0–1. Trkn – Doug, itsyourturn.com, 2000.

6.0-0 a6 7.c4 h6 8.d3 d6 9.Nbd2 Nbd7 10.a3 c5 11.e4 Qc7 12.Rb1 Bc6 13.b5 (13.bc5 dc5 14.e5 Nh5+=) 13...ab5= 14.cb5 Bb7 15.a4 0-0 16.Qc2 Ra7 17.Nc4 d5 18.ed5 Bd5 19.Rfe1 Qb7 20.Ncd2 e5 21.Be5 Ne5 22.Re5 Rfa8 23.Rbe1 Ra4 24.Re7 Qc8 25.Nh4 Ra2 26.Qd1 Ra1! 27.Qe2 g5 28.Nhf3-/+ g4 29.Ne5 Re1 30.Qe1 Bg2 31.Kg2 Qd8 32.Nf7 Qd5 33.Ne4 Kf8–+ 34.Rc7 Ne8 (34...Ne8 35.Rc6 Qd3–+ (< 35...Qf7 36.Qe3–+)) 0–1. Letsplay! – amoruritme, ChessWorld.net, 2005.

6.0-0 c5 7.bc5 bc5 8.Nc3 0-0=.

6.0-0 c5 7.bc5 bc5 8.c4 0-0 9.Na3 Nc6=.

6.0-0 c5 7.bc5 bc5 8.c4 0-0 9.Nc3 Ne4?! 10.Ne4 Be4 11.Bg7 Kg7 12.Qc1!+= Nc6 13.Qc3 Kg8 14.Qe3! Bf3 15.Bf3 Qa5 16.Rfb1 Rab8 17.Rb8 Rb8 18.Bc6 dc6 19.Qe7+– Qd2 20.Qa7 Rb2 21.Qc5 Qe2 22.a4 Rc2 23.a5 Rc4 24.Qb6 Qe5 25.Qb1! Qb5 26.Qd1 (26.Qb5? cb5 27.a6 Rc8 28.a7 Ra8 29.Kf1 b4=) 26...Qa6 (26...Qd5 27.Qd5 cd5 28.a6+–) 27.Qf1! h5 28.Ra4 1–0. Zaichik – Korsinsky, SU 1976.

6.0-0 c5 7.bc5 bc5 8.c4 0-0 9.d3 d6 (9...Qb6 10.Qb3=) 10.Nc3 Nbd7 11.Rb1 Rb8 12.Qd2 Ba8 (12...Re8 13.a3=) 13.Ba1 Rb1 (13...Rb6 14.Rb6 Nb6 15.Rb1=) 14.Rb1+= (< 14.Nb1 Ne4 15.de4 Ba1=+) 14...Ng4 15.Qg5 Nge5 (15...Ndf6 16.Qh4+=) 16.Ne5 Ne5 17.Ba8 Qa8 (better is 17...h6!? 18.Qh4 g5+=) 18.Qe7+– Re8 (18...Rb8!? 19.Qd6 Rb1 20.Nb1 Nc4 21.Qc5 Ba1 22.Qc4 Qd8+–) 19.Qd6 Nc6 20.Qc5 Bd4 21.Qa3 Ne5 22.Nd5 Qc8 23.Nf6 Kg7 24.Ne8 Qe8 25.Bd4 Qe6 26.Rb7 Kh6 27.Qf8 Kh5 28.Re7 Nf3 29.ef3 h6 30.Re6 fe6 31.g4 Kg5 32.Qf6 1–0. b4_player – donatas, gamecolony.com, 2007.

6.0-0 d5 7.d3 0-0 8.Nbd2 (8.c4 Qd6 9.a3 dc4 10.dc4 7.d3) 8...Nbd7 9.c4 c5 10.bc5 Nc5 11.d4 Nce4 12.Ne4 Ne4 13.Nd2 Nd2 14.Qd2 f5 15.Rfc1 Qd7 16.c5 e6 17.a4 bc5 18.dc5 Bb2 19.Qb2 Bc6 20.Qe5 Kf7 21.a5 Rfc8 22.f4 Qc7 23.Qc7 Rc7 24.Rab1 Rac8 25.Kf2 Kf6 26.a6 Ba8 27.Rb5 Bc6 28.Rb2 Ba8 29.Rb5 Rc6 30.Ra5 Rb8 31.Rc2 Rcc8 32.e3 Bc6 33.Bf1 Rb3 34.Be2 Rcb8 35.Raa2 Ke7 36.h3 R8b4 37.Ra1 Re4-/+ 38.Re1 Ree3 39.g4? Rh3–+ 40.gf5 gf5 41.Rg1 Kf7 42.Rg5 d4 43.Bc4 Rh2 44.Kg1 Rh1 45.Kf2 Rf3 46.Ke2 Rh2 47.Kd1 Ba4 0–1. Moehring,Guenther – Popov,Luben, DSV–Turnier, 1964.

6.a3 d5 7.d3 Nbd7 8.Nbd2 e5 9.c4 d4 10.0-0 c5 11.Rc1 0-0 12.Qe1 Rb8 13.e3 Re8 14.e4 Qc7 15.Qd1 Qd6 16.Re1 cb4 17.ab4 Qb4 18.Qc2 Bc6 19.Ra1 Qd6 20.Ra7 Ra8 21.Rea1 Ra7 22.Ra7 Ra8 23.Ra8 Ba8 24.Qa4 Bb7 25.Qa7 Qc6 26.Ba3 h6 27.Be7 Ne8 28.Kf1 Bf8 29.Bf8 Kf8 30.Ke2 Ke7 31.Bh3 Nc7 32.Bd7 Kd7 33.Ne5 1–0. Adamkosh (1755) – Taslim065 (1995), lichess.org, 2019.

6.Nc3 0-0 7.d4 d6 8.0-0 Nbd7 9.e4 Ne4-/+ 10.Ne4 Be4 11.Re1 f5?? 12.Ng5+= Bg2 13.Kg2 e5 14.de5?? Ne5?? 15.f4+/- Qf6? 16.Nh7?? Kh7= 17.fe5 de5 18.Be5 Qc6 19.Kh3?? Rh8–+ 20.Bg7 Kg7 (20...Kg7 21.Qh5 Rh5#) 0–1. gbsrao (2125) – spad (2140), net–chess.com, 2007.

6.c4 0-0 7.0-0 d5 8.cd5 Nd5 9.Bg7 Kg7 10.Qb3 Nd7 11.Nc3 Nc3 12.Qc3 Kg8 13.d4 Nf6 14.Rfd1 Rc8 15.Ne5 Bg2 16.Kg2 Qd6 (16...c6 17.Rac1 Qd5 18.Kg1 Qa2 19.Nc6+/-) 17.a3 Qe6 (17...Nd5 18.Qf3+=) 18.Qc6+/- Qf5 19.Rac1 Rfd8 20.Qf3 Qf3 21.Kf3 (worse 21.Nf3 c5+=; 21.ef3?! a6=) 21...a6 22.Nc6 Rd7 23.d5 (23.e4 Kg7+/-) 23...Kf8 (23...Re8!?+=) 24.e4+/- e6 25.de6 fe6 26.Rd7 Nd7 27.Ke3 Ra8 28.Nd4 c5 (28...Ke7 29.Rc7 e5 30.Nf3+-) 29.Ne6+- Kf7 30.Ng5 (30.Nc7 Ra7 31.Nd5 Ra8+-) 30...Ke7+/- 31.f4 h6 32.Nf3 White intends e5 32...cb4 (32...Rf8 33.g4+-) 33.ab4 a5 34.Nd4 (better 34.Nh4!?+-) 34...ab4+/- 35.Nc6 Kd6 (35...Ke6 36.Nb4 Ra3 37.Kd4+/-) 36.e5+- Ke6 37.Nb4 Ra3 (37...Nc5 38.Rd1 Ra3 39.Kd4+-) 38.Kd4 Nc5 39.Kc4 Rf3 (39...Ra5+-) 40.Rd1 Ne4 41.Rd4 Re3 42.Nd5 Re2 43.Nb6 Kf5 (43...Re1 44.Na4+-) 44.Nd5 h5 (44...Kg4 45.Ne7 Nd2 46.Kd3+-) 45.Ne7 Ke6 46.Kd3 (better 46.Ng6 Nd2 47.Kd3 Rh2 48.Rd6 Kf7 49.f5+-) 46...Rh2 47.Ke4 Ke7 48.Rd6 g5? (48...Kf7 49.Rd7 Kf8 50.e6 Re2 51.Kd5+-) 49.f5 (better 49.fg5 Re2 50.Kf5 Rg2+-) 49...h4? (better 49...Re2 50.Kd5 Rd2 51.Kc5 Rc2 52.Kb5 Rb2 53.Kc4 Rc2 54.Kd3 Rg2+-) 50.f6 Kf7 (50...Ke8 51.gh4 gh4 52.e6+-) 51.Rd7 (51.Kf5 Rf2 52.Kg5 Re2 53.e6 Re6 54.Re6 hg3 55.Re7 Kg8 56.Kg6 Kf8 57.Rb7 Ke8 58.f7 Kf8 59.Kf6 g2 60.Rb8) 51...Kg6 52.Rg7 Kh6 53.gh4 Rh4 (53...gh4 54.Rg4 h3+-) 54.Kf5 Rf4 55.Ke6 White prepares the advance f7 55...g4 56.Rg8 Kh5 57.f7 (57.f7 Rf3 58.Ke7+-) 1-0. Kramnik,V (2750) - Tsydypov,Z (2555), Levitov Christmas Final blitz, 2020. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2)

6.c4 a5 7.b5 Ra7 8.0-0 0-0 9.Be5 c5.

6.c4 c5 7.b5 d5 8.cd5 Bd5 9.0-0 Bb7 10.Qc2 Nbd7 11.d3 0-0 12.Nbd2 Ne8 (12...a6 13.a4=) 13.Nc4 Bb2 14.Qb2 Nd6 15.Rad1 Qc7 16.h4 (16.Nd6 ed6 17.d4 a6 18.dc5 bc5 19.ba6 Ra6=) 16...f6 (16...a6 17.ba6 Ra6 18.Rd2=) 17.h5 e5 (17...gh5 18.Qb3 Bd5 19.Nh4 Bg2 20.Ng2=) 18.Nh4 (18.Nd6!? Qd6 19.hg6 hg6 20.Ne5 Bg2 21.Nc4+/-) 18...Bg2= 19.Kg2 Nf5 (19...Kg7 20.Rh1=) 20.hg6 Nh4= 21.gh4 hg6 22.f3 f5 23.Kf2= Rae8 24.Rg1 Kf7 25.Rg5 Rh8 26.Rdg1 Nf8 27.f4+= Rh4 28.fe5 Rc4 29.dc4 Re5 30.e3 Qd6 31.Rh1 Qe6 32.Rg3 Qf6 33.Rf3 g5 34.Rh6+/- Ng6 35.Qd2 f4? 36.ef4+– Kg7?? 37.fe5 (37.fe5 Qe7 38.Rg6 Kg6 39.Qd5+–) 1–0. Meyer,B (2220) – Rickenbach,J, Casino Open, Baden SUI, 1999.

6.c4 c5 7.bc5 bc5 8.0-0 0-0 9.d3 d6 10.Nc3 Nbd7 11.Qa4 a6 12.Rab1 Qc7 13.Nd2 (13.a3 Bc6 14.Qc2 Rab8=) 13...Bg2+= 14.Kg2 Rfb8 15.Ba1 Nb6 16.Qa5 Nfd7 17.Rb3 Nd5 18.Qc7 Nc7 19.Na4 Ba1 20.Ra1 Rb4 21.Rb4 cb4 22.d4 Ne6 23.Nb3 Kf8 24.Rc1 Ke8 25.c5 dc5 26.dc5 Nc7 27.f4 Rb8 28.Kf3 e6 29.e4 Rb5 30.Ke3 Kd8? 31.Nd4+– Nf6 32.Nb5 ab5 33.Nb2 Ng4 34.Ke2 Nf6 35.Ke3 Na6?? 36.Nd3+– Kc7 37.Kd4 Nd7 38.Rb1 f6 39.Nb4 Nac5 40.Nd3 Kb6 41.Nc5 Nc5 42.g4 Na4 43.Rb3 Nc5 44.Rh3 e5 45.fe5 fe5 1–0. Hellmayr,Alois (2250) – Wachweger,Albrecht (2020), Bayern–chI Bank Hofmann 3rd, 1999.

6.c4 c5 7.bc5 bc5 8.0-0 0-0 9.d3 d6 10.Nbd2 Nbd7 11.Rb1 Qc7 12.Qc2 Rab8 13.Bc3 Bc6 14.Rb8 Rb8 15.Rb1 Ng4 (15...Rb1 16.Nb1 a6 17.Nbd2=) 16.Bg7 (16.Rb8 Nb8 17.Bg7 Kg7+=) 16...Kg7 17.Ne1 (17.Rb8 Nb8 18.e3 Nd7+=) 17...Ngf6 (17...Rb1 18.Qb1 Bg2 19.Ng2=) 18.Bc6 Qc6 19.Rb8 Nb8 20.Qb3 Qb6 21.Nc2 Nc6 ½–½. Belezky,Alexander (2465) – Cyborowski,Lukasz (2500), Bundesliga, 2009. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6 5.Bg2 Bb7)

6.c4 c5 7.bc5 bc5 8.Nc3 0-0 9.Rb1 d6 10.0-0 Nbd7 11.Ba1 Bc6 12.d3 Qa5 13.Ne1 Bg2 14.Ng2 Rfb8 15.Ne3 e6 16.Qc2 Ne5 (16...a6 17.Qa4 Qa4 18.Na4=) 17.Rb8 (17.Nb5 Nc6+=) 17...Rb8= 18.Rb1 Nc6 19.Rb8 Nb8 20.Qb1 Qc7 21.Qb3 (21.Ncd5 Nd5 (21...ed5? 22.Bf6 Bf6 23.Nd5+–) 22.cd5 Nd7=) 21...a6 22.Qa4 Nfd7 23.Nc2 f5 24.Nd1 Qb7 25.Bg7 Kg7 26.Qb3 Qb3 27.ab3 Nc6 28.f4 Na5 29.Na1 (29.b4 Nb3=) 29...Nb8 30.e3 Nbc6 31.Kf2 d5 (31...Kf6 32.Ke2=) 32.cd5 ed5 33.Nc3 Nb4 34.Ke2 Kf7 35.Na4 c4 36.dc4 dc4 37.bc4 Nc4 38.Nb3 Ke6 39.Kf3 Nd6 40.Nc3 h5 41.h3 Nc4 42.e4 fe4 ½–½. Soppe,Guillermo – Vasquez Schroeder,Rodrigo, Primer I. T. T. Ciudad Antofagasta R2, 2012. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6 5.Bg2 Bb7)

6.d3 a6 7.e4 d6 8.Nbd2 (8.a3 0-0=) 8...0-0 9.0-0 c5 (9...Nc6 10.c3=) 10.bc5 dc5 11.Rb1 Nbd7 (11...Nc6 12.a4=) 12.Nc4 (12.Qe2 b5=) 12...Qc7 (12...b5 13.Qd2=) 13.Qe1 (13.Qd2 Rad8=) 13...Rac8 (13...Rad8 14.e5 Ng4 15.e6 Bb2 16.Rb2=) 14.Nfe5 (14.e5 Ne8+=) 14...b5= 15.Nd7 Nd7 (< 15...Qd7 16.Nb6 Qe6 17.Nc8 Rc8 18.Qa5+–) 16.Bg7 Kg7 17.Qc3 (17.Ne3 e5=) 17...f6 (17...e5 18.Ne3=) 18.Ne3 Nb6 (18...e5 19.f4=) 19.f4 c4 (19...e5 20.Bh3 Rcd8 21.Be6=) 20.d4+= e6 21.Rbd1 Rfd8 22.Bh3 Qf7 23.d5!+/- ed5 24.Bc8 Bc8 25.Qd4 Qc7 26.g4+– Re8 27.g5 Qc6? 28.ed5+– Qd6 29.f5 Bf5? 30.Rf5 gf5 31.Nf5 (31.Nf5 Kg6 32.Nd6+–) 1–0. gbsrao (2190) – bumeyou (2250), net–chess.com, 2008.

6.d3 d5 7.Nbd2 0-0 8.c4 e6 9.Qb3 Nbd7 10.0-0 Qe7 11.a4 a5 12.b5 Rfd8 13.Rac1 c5 14.bc6 Bc6 15.Ne5 (15.Nd4!? Bb7 16.Ba3+=) 15...Ne5= 16.Be5 dc4 (16...Qb4 17.Qb4 ab4 18.Bc7=) 17.Nc4+= Bg2 18.Kg2 Qb7 19.Kg1 The backward pawn on b6 becomes a target 19...Nd5 20.Bg7 Kg7 21.Qb5 Rab8 22.h4 Nb4 23.Qe5 Kg8 24.Ne3 Nd5 25.Ng4 h5 26.Nf6 Nf6 27.Rc7?? (better 27.Qf6 Rd5 28.Rb1=) 27...Nd7-+ 28.Qd6 Qd5 29.Qe7 Ne5 30.f4 (30.Qf6 Rd7 31.Rfc1 Rc7 32.Rc7 Qd6-+) 30…Rd7 (30...Rd7 31.Rd7 Nd7-+) 0-1. Nettleton,Charlie B (2045) - Damianou,Ioannis (1905), London Classic Open, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6)

6.d4 d5 7.Nc3 (7.0-0 0-0=) 7...c6 (7...0-0 8.0-0=) 8.0-0 Ba6 (8...0-0 9.a3=) 9.a4 Nbd7 (9...0-0 10.Ne5=) 10.Re1 (10.Ne5 Qc7=) 10...e6 (10...0-0 11.a5=) 11.e4 de4 12.Ne4 Ne4 13.Re4 Nf6 (13...Bc4 14.a5=) 14.Re1+= Bb7 (14...Nd5 15.Ba3+=) 15.c4 (15.Ne5 Qc7+/-) 15...0-0 (15...a5 16.ba5 Ra5 17.Ne5+=) 16.Rc1 (16.Ne5!?+/-) 16...Rb8 (16...a5 17.b5 Rb8 18.Qe2+=) 17.b5 Re8 (17...Nd7 18.Qe2+=) 18.Ne5 cb5 19.Bb7 Rb7 20.ab5 Qc7 (20...Qc8 21.Qf3+/-) 21.Nc6 Nd7 22.Qg4 Nf6 23.Qf3 Nd7 24.Ba3 Nf6 25.d5 ed5?? 26.Re8 Ne8 27.Re1 Nf6?? 28.Re7 Qc8 29.cd5 Rd7 30.Bb2 Nd5 31.Qf7 (31.Qf7 Kh8 32.Qg7#) 1–0. gbsrao (2110) – grahamtrue (2115), net–chess.com, 2008.

6.0-0 0-0

7.a4 a5 8.b5 d6 9.d4 Nbd7 10.c4 e6 (10...Rc8 11.Nbd2=) 11.Nc3+= Ne4 12.Qc2 Nc3 13.Bc3 Nf6 14.Rad1 Be4 15.Qb2 d5 16.c5 Qe7 17.c6 Bf3 18.Bf3 Rad8 19.Bg2 Ne4 20.Rd3 Rfe8 21.Rfd1 f5 (21...Nd6 22.e3=) 22.f3 (22.e3 Qg5+=) 22...Nd6= 23.Bd2 Nc4 24.Bc1?? (better 24.Qc1=) 24...Nb2-+ 25.Bb2 Qb4 (25...Qb4 26.Ba1 Qa4-+) 0-1. geochess (2100) - shaf (2255), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2)

7.a4 c5 8.bc5 bc5 9.Na3 Nc6 10.d4 (10.Rb1 Rb8=) 10...cd4 11.Nd4 Qb6 (11...Nd4 12.Bb7 Rb8 13.Bd4 Rb7 14.Qd2=+) 12.Nc4 (12.Rb1 Qc7=) 12...Qc5 13.Nc6 (13.Ne3 Rab8=+) 13...Bc6=+ (worse 13...dc6 14.Qd4 Qd4 15.Bd4+=) 14.Bc6 Qc6 15.Ne5 Qe6 16.e3 Rab8 17.Bd4 a6 18.Nd3 (18.Qd3 Rfc8=+) 18...d6 19.Qe2 (19.Ra3 Rfc8=+) 19...Qh3 (19...Qc4!? 20.Nf4 Rfc8 21.Qc4 Rc4 22.Bf6 Bf6-/+ (22...ef6?! 23.Ra2=)) 20.Nf4 Qf5 21.Rfe1? (better 21.Bf6 Bf6 22.Rab1=+) 21...e5-+ 22.e4 (22.Qa6 ed4 23.ed4 Qc2-+) 22...Qd7 (22...Qc8 23.Be5 de5 24.Nd3-+) 23.Be5 (23.Qa6 ed4 24.Qd3 Rfe8-+) 23...de5 24.Rad1 (24.Red1 Qc8 (24...ef4?! 25.Rd7 Nd7 26.Rd1-/+) 25.Nd3 Qc4-+) 24...Qg4 (better 24...Qa4!? 25.Nd3-+) 25.Nd5 (25.Qg4 Ng4 26.Nd5 Rb2-+) 25...Qe2 26.Nf6 (26.Re2 Nd5 27.Rd5 Rfc8-+) 26...Bf6 27.Re2 Rfd8 28.Red2 Rd2 (28...Rd4 29.Rd4 ed4 30.f4-+) 29.Rd2 Rb4 (29...Kg7 30.a5-+) 30.a5 (30.Rd6 Be7 31.Ra6 Re4-+) 30...Re4 (30...Rd4!? 31.Re2-+) 31.Rd6 Kg7 32.Ra6 Rc4 33.Ra8 Rc2 34.a6 e4 35.Kg2 (35.Re8 Ra2 36.Re4 Ra6-+) 35...Bd4 36.a7 (36.Re8 e3 37.Re4 Rf2 38.Kh3-+) 36...Rf2 37.Kh3 Ra2 38.Rd8 (38.Re8 Ba7 39.Re4 h5-+) 38...Ba7 39.Re8 (39.Rd1 e3 40.Re1 Bd4-+) 39...e3 40.Re7 Kf8 (40...e2 41.Kg4 Bc5 42.Re2 Re2 43.Kf3 Rh2 44.Ke4-+) 41.Re4 (41.Ra7 Ra7 42.Kg2 Ra2 43.Kf3 e2-+) 41...f6 (better 41...e2-+) 42.g4 (42.Rc4 e2 43.Rc8 Ke7-+) 42...f5 (42...Bb8 43.g5 f5 44.Re8 Ke8 45.Kh4 Rh2) 43.gf5-+ gf5 44.Re5 (44.Rc4 e2 45.Rc8 Ke7-+) 44...e2 45.Rf5 Ke7 (better 45...Kg7 46.Re5 Ra3 47.Kg4-+) 46.Re5 Kd6 (better 46...Kf6 47.Re2 Re2-+) 47.Re8 (47.Re2 Re2 48.Kg3 Ke6-+) 47...Bf2 (47...Ra3 48.Kg2 Be3 49.Rd8 Ke7 50.Ra8 Ra8 51.h3 e1Q 52.Kf3 Rf8 53.Ke4 Qd2 54.h4 Qd4) 48.Rd8 (48.Kg4-+) 48...Kc7 (48...Ke7 49.Rg8 e1Q 50.Rg7 Kd6 51.Re7 Ra3 52.Kg4 Qb4 53.Re4 Qe4 54.Kg5 Be3 55.Kf6 Qg6) 49.Re8 e1Q (49...e1Q 50.Re1 Be1-+) 0-1. chesserstein (2185) - ENERGIE73 (2155), Rated Bullet game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2)

7.d3 c5 8.bc5 bc5 9.Nbd2 Nc6 10.Rb1 Rb8 11.c4 Qc7 12.Qa4 d6 13.Bf6 Bf6 14.Rb3 Ba8 15.Rfb1 Rb3 16.Rb3 Bg7 17.e3 Rd8 18.Ne1 e6 19.Rb5 Bc3 20.Nef3 Nb4 21.Nb1 Bf6 22.Ne1 (better is 22.Qa5!? Qa5 23.Ra5 Nd3 24.Ra7=+) 22...Bg2–+ 23.Kg2 a6 24.Ra5 Qb7 25.Kf1 Nc6 26.Ra6 Nb8 (26...Nb8 27.Ra8 Qb1–+) 0–1. Fauland,A (2450) – Socko,B (2635), 1st Bundesliga, 2012.

7.d3 c5 8.bc5 bc5 9.Nbd2 d5 10.c4 d4 11.Nb3 Qc7 12.Ba3 Na6 13.Rb1 Nd7 14.Qc1 h5 15.h4 Kh7 16.Ng5 Kg8 17.Ne4 Kh7 18.Nbc5 Nac5 19.Nc5 Bg2 20.Kg2 Nc5 21.Bc5 Qc5 22.Rb5 Qc6 23.Kg1 Rab8 24.Qb1 Rb5 25.Qb5 Qb5 26.cb5 Rb8 27.a4 a6! 28.ba6 Rb6 29.a7 Ra6 30.Ra1 Ra7 31.Kg2 Be5 32.Kf3 Bc7 33.Ke4 e5 34.Kd5 f5 35.Kc4 Ra5 36.Kb4 Kh6 37.Rc1 Ra7 38.Rc6 Ba5 39.Kb5 Be1 40.Re6 Bf2 41.Re5 Bg3 42.Rd5 Be1 43.Rd4 g5 44.hg5 Kg5 45.e3 h4 46.e4 Ra5 47.Kb6 Bf2 48.e5 Bd4 49.Kc6 Re5 50.a5 Ra5 (50...Ra5 51.Kc7 f4 52.Kc6 f3 53.Kc7 f2 54.Kd6 f1Q 55.Kc7 Qf7 56.Kc6 Be5 57.d4 Qc7#) 0–1. linakip – fonetka, kurnik, 2011.

7.c4 c5

8.a3 Nc6 9.Qb3 Rb8 10.d3 d6 11.Nbd2 Qc7 12.b5 Nd8 13.a4 a5 14.ba6 Ba6 15.Rfb1 Nc6 16.Bc3 Bc8 17.Ne1 Bg4 18.e3 Bd7 19.Qb2 e5 20.Nc2 Be6 21.Ne4 Ne4 22.Be4 Ne7 23.Na3 Rfd8 24.Bg2 d5 25.Nb5 Qd7 26.Be5 Be5 27.Qe5 dc4 28.dc4 Bc4 29.Nc3 Qe6 30.Qf4 Bd3 31.Rd1 c4 32.h4 Nc6 33.Nb5 Na5 34.Nd4 Qd6 35.Qd6 Rd6 36.Bf1 Bf1 37.Kf1 Ra8 38.Rac1 h5 39.Rc3 Kf8 40.Rb1 Rc8 41.Rb4 Ke7 42.Ke2 Rc5 43.Nb5 Rd7 44.Nd4 Rd6 45.Nb5 Rd7 46.Nd4 ½–½. Soppe – Nogueiras, San Martin 1995.

8.a3 Qc8 9.d3 d5 10.cd5+= Nd5 11.Bg7 Kg7 12.Qb3 cb4 (12...Nd7 13.Qb2 Kg8 14.Nc3+=) 13.ab4+/- Nf6 (13...a5 14.ba5 Ra5 15.Ra5 ba5 16.Qb2 f6 17.Nbd2+/-) 14.Nbd2 Nbd7 15.Qb2 (15.Rfc1 Qb8+/-) 15...Kg8 (15...a5 16.Rfc1 Qb8 17.Bh3+=) 16.Ra3 (16.Rfc1 Qb8+/-) 16...Qb8 17.Rfa1 a6 (17...Rc8 18.b5+/-) 18.Nc4 (18.Rc3 Nd5 19.Rcc1 Qd6+=) 18...Ra7 (18...Rc8 19.Rc3+/-) 19.Qd4 (19.Nd4 Bg2 20.Kg2 b5+/-) 19...Rd8 20.Nh4 (20.Rc1!?+/-) 20...Bg2= 21.Ng2 Qb7 (21...b5 22.Nce3=) 22.Nge3+= Rc8 23.f3 b5 24.Ne5 Nb6 25.N5g4 Ng4+= 26.Ng4 f6 27.Ne3 Na4 28.Kf2 Qd7= 29.Qe4 Kg7 30.d4 e6 31.d5 ed5 32.Qd4 Rac7 33.Nd5 Rc6 34.Re3 Rd6=+ 35.Rd1 Rd8 36.Red3?? Qh3 37.Qa7 R8d7 38.Qb8?? Qh2 39.Kf1 Qh1 40.Kf2=+ Qh2 41.Kf1 Qh3 (41...Qh3 42.Kg1 Nb2–+) 0–1. Vaelkesalmi,Kimmo – Koskinen,Henri, Helsinki, 1991.

8.a3 d6 9.Qb3 Nbd7 10.d3 e6 11.Nc3 Qe7 12.e3 Nh5 13.Rad1 f5 14.d4 Nhf6 15.a4 h6 (15...cb4!? 16.Qb4 Ne4=) 16.Nh4 Bg2 17.Ng6 (17.Kg2?! Kh7=; 17.Ng2?! e5=) 17...Qf7 18.Nf8 (18.Kg2 Qg6 19.Nb5 a5–+) 18...Bf3 (better is 18...Bf1!? 19.Nd7 Bh3 20.Nf6 Bf6+=) 19.Nd7+– Nd7 20.dc5 (20.Rde1!?+–) 20...Qh5 21.h4 Bf6 22.Rd4! (22.Rd6 Bh4 23.Qd1 Ne5 (23...Bd1?! 24.Rfd1 Ne5 25.gh4-/+) 24.Qf3 Nf3 25.Kg2 bc5 26.bc5 Ng5–+) 22...e5 23.Nd5 ed4 24.Nf6 Nf6 25.cd6 Kh7 26.Bd4 Ne4 27.c5 Rg8?? 28.Qe6 Re8 29.Qd7 Kg8 30.Qg7 1–0. Torres,Luis J – Davila Texeira,Mario, URU–ch sf Uruguay, 1985.

8.a3 d6 9.d3 Nbd7 10.Nc3 e6 11.Rb1 Qc7 12.Ba1 Rfe8 13.e4 Rad8 14.Nh4 Ne5 15.f4 Nc6 16.Nb5 Qe7 17.bc5 bc5? 18.Nd6! Rd6 19.e5 Ne5?? 20.fe5+– (20.fe5 Bg2 21.Ng2+– (< 21.Kg2 Rb6 22.Rb6 Nd5 23.cd5 ab6+–); 20.Rb7?! Ned7 21.Ra7 Qd8+/-; 20.Be5?! Rd7=) 1–0. Soppe,G (2435) – Hadid,Omar, II Manuel Pereyra Puebla Mem, Mendoza A, 2003.

8.bc5 bc5 9.Nc3 Nc6 10.Rb1 (10.Nd5) 10...Rb8 11.Qa4 Qa5 12.Qa5 Na5 13.d3 Nc6 14.Ba1 Ba8 15.Rb8 Rb8 16.Rb1 ½–½. Forintos,Gyozo V – Portisch,Ferenc, Kecskemet Toth Memorial 5th, 1975.

7.c4 d6

8.Nc3 Nbd7 9.a4 c5 10.b5 e6 11.a5 (11.Qc2=) 11...d5 (better is 11...ba5 12.Qc2 a6-/+) 12.a6+= Bc8 13.d4 cd4 14.Nd4 Ne5 15.cd5 ed5 16.Qb3 Nc4 17.Rfd1 (17.Nc6 Qd6 18.Ba3 Na3 19.Qa3 Qa3 20.Ra3 Be6+/-) 17...Be6 18.Rac1 (18.e4 Bg4 19.f3 Be6+/-) 18...Rc8 (18...Nb2 19.Qb2 Qd7 20.Nc6+/-) 19.Nc6 Qd7? (better is 19...Na5 20.Na5 ba5 21.Nd5 Nd5 22.Bd5 a4+/-) 20.Nd5+– Bd5 21.Bd5 (better is 21.Bf6 Bf6 22.Rd5+– (22.Bd5?! Na5 23.Qf3 Kg7+–)) 21...Nb2 22.Qb2 Nd5 23.Qd2 Rfe8 24.Qd5 Qd5 25.Rd5 Rc7 26.e3 Bf6 (26...f6 27.Rcd1 Rf8 28.Rd8 Rd8 29.Rd8 (29.Nd8?! Bf8+–) 29...Kf7 30.Ra8+–) 27.Rcd1 Rec8 28.Rd7 Kf8 (28...Rc6 29.bc6 Rc6 30.Ra7+–) 29.Na7 Rd7 30.Rd7 Ra8 (30...Rc2+–) 31.Nc6 Ke8 (31...Kg7 32.Rb7 Rc8 33.a7+–) 32.Rb7 1–0. Sharkov,Venko (1680) – Ilieva,Ralitsa, 163rd MGU Open, 2016. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6 5.Bg2 Bb7 6.0-0 0-0 7.c4 d6)

8.d3 a5 9.b5 c6 10.Na3 Nbd7? (better is 10...Qc7+=) 11.Nd4+– cb5?? (11...c5 12.Bb7 cd4 13.Ba8 Qa8 14.Bd4 e5+–) 12.Bb7 Rb8 13.Nc6 Qc7 14.Ne7 Kh8 15.Bg2 Ne5 16.Nd5 Nd5 17.Nb5 Qc5 18.Bd5 Nd7 19.d4 Qc8 20.Nd6 Qc7 21.Nf7 Kg8 22.Ng5 Kh8 23.Ne6 Qd6 24.e4 Rfe8 25.e5 Qe7 26.Qf3 b5 27.cb5 Rb5 28.Ba3 Nc5 29.Bc5 Rc5 30.Nc5 Rf8 31.Qe4 Rd8 32.Rab1 (32.Rab1 Qe8 33.Rb7+–) 1–0. pierre – stoisko, internet, 2009.

8.d3 Na6 9.a3 c5 10.Qb3 Nc7 11.Nc3 a6 12.bc5 dc5 13.Na4+= b5 14.Nc5+/- Rb8? 15.Nb7+– Rb7 16.Nd4 Rb8 17.Nc6 bc4 18.Qc4 Qd5 19.Bd5 Rb2 20.Ne7 Kh8 21.Qc7 Nd5 22.Nd5 Re2 23.Rab1 h5 24.Rfe1 Ra2 25.Re7 Kg8 26.Rb7 Ra1 27.Kg2 Bd4 28.Rf7 Re8 29.Rf8! Rf8 30.Qh7# 1–0. pierre – pransiskus, internet, 2008.

8.d3 c5 9.a3 Nc6 10.b5 Na5 11.Nc3 e6 12.e3 d5 13.cd5 Nd5 14.Qc2 Nc3 15.Bc3 Bc3 16.Qc3 Qd5 17.h3 Qd7 18.Ne5 Qb5 19.Rab1 Qe8? 20.Ng4+– Bg2?? 21.Nh6 1–0. b4_player – vimat, gamecolony.com, 2006.

8.d3 c5 9.bc5 dc5 10.Nbd2 Nc6 11.a4 Qc7 12.Nb3 a5 13.Qb1 Rfd8 14.Bc3 Nh5 15.Qb2 Bc3 16.Qc3 Nb4 17.Rfd1 Rac8 18.Nbd2 Ng7 19.Nb1 (19.Bh3 f5=) 19...Bc6 20.Qb2 Qb8 (20...Qb7 21.Nc3+=) 21.Nc3 Nf5 22.Nb5 (22.e4 Nd4 (22...Nd3? 23.Qe2 Nd4 24.Qd3+–) 23.Nd5 Bd5 (worse is 23...Nd5 24.ed5 Nf3 25.Bf3+/-) 24.ed5 Nf3 25.Bf3 Qd6=) 22...Bf3 (22...Qb7 23.Ne1=) 23.Bf3= Nd4 24.Nd4 Rd4 (24...cd4 25.Rab1=) 25.Rd2 Rcd8 26.Rad1 R8d7 27.Bg2 Qd8 28.Bf1 R4d6 29.e3 f6 30.d4 e5 (30...cd4 31.ed4 e5 32.d5=) 31.Bh3 f5 32.d5 e4 33.f4 (33.Bf1 Qf6=) 33...ef3 34.e4 (better is 34.Rf2!?=) 34...fe4-/+ 35.Be6? (better is 35.Bd7 Rd7 36.Qe5-/+) 35...Re6!–+ 36.de6 Rd2 37.Rd2 (37.Qd2 Nd3 38.h4 Qd6–+) 37...Nd3 38.Qb5 (38.Qa1–+) 38...Qd4 (38...Qd4 39.Kf1 Qa1 40.Qb1 Qb1 41.Rd1 Qd1) 0–1. Birkisson,Bjorn Holm (1905) – Ranaldi,Lucas (2215), European Youth Chess Championship U16, 2016. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 b6 5.Bg2 Bb7 6.0-0 0-0 7.c4 d6)

8.d3 Nbd7 9.Nbd2 c5 10.b5 Qc7 (10...a6 11.ba6 Ra6 12.Qb3=) 11.Qc2 (11.Qb3 a6=) 11...e6 (11...a6 12.a4=) 12.a4 (12.Rfb1 a6=) 12...a6 13.h3 (13.Rfb1 Ra7=) 13...d5 (13...Ra7 14.Bc3=) 14.e3 (14.cd5 ed5 15.e3 ab5 16.ab5 Qd6=) 14...a5 (14...e5 15.ba6 Ra6 16.cd5 Nd5 17.Rfc1=+) 15.Rfe1 (15.cd5 ed5 16.d4 c4=) 15...Rad8 (15...e5 16.cd5 Nd5 17.Nc4=) 16.cd5 ed5 17.e4 de4 18.de4 Rfe8 19.Rad1 Re7 (19...Nf8 20.e5 N6d7 21.Kh2=) 20.Re2 (20.e5 Ne8=) 20...Nf8 (20...Rde8 21.Rde1=) 21.Rde1 Rde8 22.e5 Nd5 (22...N6d7 23.Qc4=) 23.Nc4+= Nb4 24.Qd2 Rd8 25.Nd6 Bd5 26.Ng5 Bb3 27.f4 Ba4 28.Qc3 c4 29.Nge4 Nd3 30.Ra1 Bb3 31.Rd2 Nb2 32.Qb2 Qb8 33.Rc1+= Rc7 34.Bf1 Qa8 35.Qd4+/- Qa7 36.Bc4 g5 37.f5 a4 38.Rc3 Nd7? 39.Nf7 Bc4 40.Rc4 Rf8 41.Neg5 Nb8 42.Nd6 Kh8 43.Ra4 Rc1 44.Kh2 Qe7 45.f6 Rf6 46.ef6 Bf6 47.Ngf7 Kg7 48.Qg4 Kf8 49.Re4 h5 50.Qg6 (50.Qg6 Qe4 51.Ne4+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

8.d3 Nbd7 9.Nbd2 e5 10.Qb3 Qc8 11.e4 a5 12.a3 Qd8 13.Rfc1 Qe7 14.Nf1 Ra7 15.Ne3 c6 16.Bc3 ab4 17.ab4 Rfa8 18.Ra7 Ra7 19.Qb2 Qd8 20.Ra1 Ra1 21.Qa1 Qa8 22.Qa8 Ba8 23.Bh3 Bb7 24.Kf1 Kf8 25.Ke2 Ke7 26.Nd2 Ne8 27.Nb3 Nc7 28.f4 f6 29.fe5 fe5 30.c5 dc5 31.bc5 Nb5 32.Bb4 Nd4 33.Nd4 ed4 34.Nd5 cd5 35.c6 Nc5 36.cb7 Be5 37.ed5 Kd8 38.Bc5 bc5 39.Kf3 Kc7 40.Ke4 Bd6 41.Be6 Kb7 42.Bg8 h6 43.Bf7 g5 44.Kf5 Kc7 45.Ke6 Bf8 46.Bh5 Bd6 47.Bd1 Bf8 48.Kf7 Bd6 49.Ke8 Be5 50.Ke7 Bd6 51.Kf7 Kd7 52.Bg4 Kc7 53.Ke8 Be5 54.Ke7 Bd6 55.Kf7 Be5 56.Kg6 Bd6 57.Kh6 Be7 58.Bd1 Kd6 59.Bb3 Ke5 60.Kg6 Bd8 61.Kh5 Kf5 62.d6 Ke5 63.d7 Kd6 64.Ba4 c4 65.dc4 d3 66.Kg6 d2 67.Kf7 d1Q 68.c5 Kc7 69.Bd1 Kd7 70.Ba4 Kc8 71.Ke6 Ba5 72.h4 gh4 73.gh4 Kd8 74.h5 Bd2 75.Kf7 Be3 76.c6 Bf4 77.Kg7 Be5 78.Kg6 Ke7 79.h6 Kf8 80.h7 1–0. Emma – Varas, Caseros 1974.

7.d3 d6

8.c4 a5 9.b5 e5 10.e3 Nbd7 11.d4 Re8 12.Nc3 Ne4 13.Nd5 Ndf6 14.Nf6 Bf6 15.h4 Qe7 16.Re1 Rad8 17.Nd2 Nd2 18.Qd2 Bg2 19.Kg2 e4 20.h5 d5 21.hg6 hg6 22.Rac1= Qe6 23.cd5 Rd5 24.a4 Kg7 25.Rh1 Rh8 26.Rh8 Kh8 27.Rc6?? Qd7 28.Qe2 Bg7= 29.Kf1 Rh5 30.Ke1 Bf8 31.Bc3 Qd5 32.Qc4 Rh1 33.Kd2 Qf5 34.d5 Bg7 35.Bg7= Kg7 36.Qd4 f6 37.Rc7= Kh6 38.Rc2 Qf2 39.Kc3 Qe1 40.Kb3= Qb1 41.Rb2 Qd1 42.Rc2 Qb1 43.Qb2 Qd1 44.Qf6 Rh2?? 45.Qh8+– Kg5 46.Qh2 Qb1 47.Rb2 Qd1 48.Qc2 Qd5 49.Qc4 Qd1 50.Ka2 Qa4 51.Qa4 (51.Qa4 Kf5 52.Rf2 Ke5 53.Qd4 Ke6 54.Rf6 Ke7 55.Qd6 Ke8 56.Rf8#) 1–0. Bugaev,Vik (2045) – Strygin,A (2175), 6th Geller Memorial Open A, Odessa UKR, 2010.

8.c4 c5 9.a3 Nbd7 10.Nc3 Rb8 11.Rb1 d5 12.cd5 Nd5 13.Nd5 Bd5 14.Bg7 Kg7 15.Qd2 Qc7 16.Rfc1 Rfc8 17.bc5 bc5 18.Qc3 Kg8 19.Nd2 Bg2 20.Kg2 Rb6 21.Kg1 Rcb8 22.Rb6 ab6 23.d4 Ra8 24.dc5 Qc5 25.Qc5 bc5 26.Nc4 Ra4 27.f4 Nf6 28.Ne5 ½–½. Davies,Nigel R (2465) – Hunt,Adam (2430), 4NCL/Div2/3CS–PY (Rd11–Birmingham) (11), 2001.

8.c4 Nbd7 9.Nbd2 c5 10.a3 Qc7 11.b5 a5 12.e4 Ne8 13.Bg7 Ng7 14.Ne1 e5 15.Nc2 f5 16.f3 Rae8 ½–½. Michalek,Christoph (2195) – Albrecht,Rainer (2225), Dortmund op–A, 1999.

8.c4 Nbd7 9.Nbd2 e5 10.a4 a5 11.ba5 Ra5 12.Nb3 Ra7 13.a5 Qa8 14.ab6 Nb6 15.Qc2 Na4 16.e4 Nb2 17.Qb2 Rb8 18.Qc3 Bc8 19.Nfd2 c6 20.c5 dc5 21.Qc5 Rbb7 22.Ra7 Ra7 23.Rc1 Nd7 24.Qc6 Ba6 25.Qa8 Ra8 26.Ra1 Nb6 27.Nc5 Bc8+/- 28.Ra8 Na8 29.Nc4 Bf8 30.Na4 f6 31.Nc3 Nc7 32.Bf1 Be6 33.Be2 Bb4 34.Nd1 Bc5 35.Nde3 Kf7 36.Bg4 Bg4 37.Ng4 Na6 38.Kf1 Ke6 39.Ke2 Nb4 40.Nge3 f5 41.ef5 gf5 42.Nd2 Nc6 43.Nf3 Be7 44.h3 h5 45.Nc2 Kd5 46.Nfe1 h4 47.Nf3 hg3 48.fg3 Bf6 49.g4 fg4 50.hg4 Bd8 51.Ne3 Ke6 52.Nc4 Kd5 53.Ncd2 Be7 54.Ne4 Nd8 55.Nc3 Ke6 56.Ne4 Kd5 57.Ng3 Ne6 58.Nf5 Bf6 59.Ne3 Kc6 60.Nd1 Nd8 61.Ke3 Nf7 62.Nc3 Bg7 63.Ne4 Kd5 64.Kf2 Nd8 65.Nh4 Bh6 66.Kf3 Nc6 67.Nf5 Bf4 68.Nc3 Ke6 69.Ke4 Bg5 70.Na4 Bf6 71.Nc5 Kf7 72.Kd5 Nb4 73.Kc4 Nc2 74.Kd5 Nb4 75.Ke4 Nc2?? 76.Ne3 Ne1? 77.Nd7 Bh8 78.Nc4 Ke6 79.Nde5 Nc2 80.d4 Nb4 81.Ne3 Bf6 82.Nf3 Na2 83.Nd5 Bd8 84.g5 Bg5 85.Ng5 Kd6 86.Nf7 Ke6 87.Ne5 Nc1 88.Nf4 Ke7 89.Nc6 Kd6 90.Na5 Na2 91.Kd3 Nb4 92.Kc3 Na6 93.Kc4 Nb8 94.Kb5 Nd7 95.Nc4 Kc7 96.Nd5 Kb7 97.Nd6 Kb8 98.Kc6 Nf8 99.Nf4 Nh7 100.Ne4 Kc8 101.d5 Nf8 102.Nf6 Kd8 103.Kd6 (103.Kd6+–) 1–0. Khetsuriani,B (2365) – Kesoglou,K (2115), 15th Open, Nikea GRE, 2007.

8.Nbd2 a5 9.b5 e5 10.c4 Ng4 11.a4 f5 12.e4 Ra7 13.Nh4 Bc8 14.ef5 gf5 15.h3 Nf6 16.f4 ef4 17.Rf4 Bh6 18.Bf6?? Qf6=+ 19.Rf3?? Bd2–+ 20.Qd2 Qa1 21.Kh2 Qg7 22.Re3 Kh8 23.Qe2 c5 24.bc6 Qf6 25.Re8 Rg7 26.Bd5 Na6 27.Ng2 Nc7 28.Rf8 Qf8 29.Nf4 Qe7 30.Qb2 Qg5 31.Qf2 Na8 32.Be6 Be6 33.Ne6-/+ Qf6 34.Ng7 Kg7 35.d4 Qe6 36.d5 Qe5 37.h4 Kf6 38.Qd2= f4 39.gf4 Qe4 40.Qc3 Kf5 41.Qh3 Kf6 42.Qc3 Kf7 43.Kg3 Nc7 44.Qb3 Qe1 45.Kg4 Qf1 46.Qb6?? Qg2 (47.Kf5 Qg6) 0–1. Jew,Harold (1875) – Dutton,Warren Richard (2000), Toronto Thanksgiving op U2100, 2002.

8.Nbd2 Nbd7 9.c4 c5 10.a3 e5 11.Rb1 Qc7 12.e4 a5 13.b5 Kh8 14.Nh4 Rae8 15.f4 Bc8 16.Ndf3 ef4 17.gf4 Nh5 18.Ng5 Bb2 19.Rb2 Qd8 20.Qc1 (20.Qd2 h6 21.Ngf3 Qf6=+) 20...Kg8 (20...h6 21.Ngf3=+) 21.Nhf3= h6 (21...f6 22.Nh3=) 22.Nh3 f5 23.e5 de5 24.fe5 f4 (24...g5 25.Re2 Kh7=) 25.Re2 (better 25.Qc3!?=) 25...Ne5!-/+ 26.Ne5 (26.Re5 Re5 Combination; 26.Ne5 Qd4 Double attack (26...Qd4 Decoy)) 26...Re5! 27.Re5 Qd4 28.Nf2 Qe5 29.Re1 Qd4 30.Bd5 Kh8 31.Re7 Nf6 32.Bf3 Bf5 33.Qd2 Rd8 34.Be2 (34.Kg2 g5-+ (34...Bd3?! 35.Nd3 Qd3 36.Qf4 Qd2 37.Qd2 Rd2 38.Kg3=+)) 34...Re8 (34...g5!? 35.Bf1-+) 35.Re8-/+ Ne8 36.Kf1 (36.Bf3 Nd6 37.Qe2 Qe3-/+) 36...Qe5 (36...Nd6 37.Qe1-+) 37.Bf3 Nf6 38.h3 (38.Be4 Kg7 39.Bf5 Qf5-/+) 38...g5-+ 39.Bc6 (39.Be4 Qa1 (39...Be4?! 40.de4 Kg7 41.Qd3-+) 40.Kg2 Be6-+ (40...Ne4?! 41.de4 Bg6 42.Qd6=)) 39...h5 40.Kg2 g4 41.hg4 hg4 42.Qd1 (42.Bb7-+) 42…g3 (42...g3 43.Qd2 gf2 44.Qf2 Bd3-+) 0-1. Gonzalez Parejo,Ramon Junior (2240) - Narvaez,F (2055), ch-COL Amateur U2300, 2020.

8.e4 Nbd7 9.Nbd2 Re8 10.c3 e6 11.Re1 d5 12.Qc2 de4 13.Ne4 Ne4 14.de4 Qe7 15.a3 c5 16.b5 c4 17.a4 Nc5 18.Ba3 Qc7 19.Bc5 Qc5 20.Nd2 Bh6 21.Bf1 Bd2 22.Qd2 Red8 23.Qe3 Rac8 24.Qc5 Rc5 25.f3 a6 26.ba6 Ba6 27.Red1 Rdc8 28.Rd6 R5c6 29.Rad1 Kf8 30.Kf2 b5 31.ab5 Bb5 32.e5 Rc5 33.f4 Ra8 34.Rd8 Rd8 35.Rd8 Ke7 36.Rd4 f6 37.ef6 Kf6 ½–½. Madanasri,Gundala (1960) – Paikidze,Nazi (2025), WYCC 2004 – G12, 2004.

6.0-0 Nc6

7.a3 0-0 8.d3 d6 9.Nbd2 e5 10.e4 Ne7 11.Nb3 c5 12.b5 a6 13.a4 a5 14.Nbd2 Nd7 15.Nc4 Qc7 16.Bc1 f5 17.ef5 Nf5 18.Bg5 h6 19.Bd2 g5 20.Qc1 Ne7 21.Ne3 Bf3 22.Bf3 Rf3 23.Qd1 Qb7 24.Nc4 Rf6 25.Qg4 Rd8 26.Ne3 Nd5 27.Nd5?? Qd5–+ 28.Be3 Rdf8 29.Rad1 Rf3 30.c4?? Qb7 31.Qe6 Kh8 32.Qd6 Nf6 33.Qc6 Qc6 34.bc6 Rc8 35.Kg2 g4 36.Rb1 Rc6 37.h3 h5 38.Rb3 e4 39.Bf4 ed3 40.Rd1 Ne4 41.Be3 Rcf6 42.Rb2 d2! 43.Rbb1 Nc3 44.Ra1 Nd1 45.Rd1 Rd6 46.hg4 hg4 47.Kf1 Bc3 48.Ke2 Bb4 49.Rh1 Kg7 50.Rd1 1–0. linakip – roni1, kurnik, 2012.

7.a3 0-0 8.d3 e6 9.Nbd2 d5 10.c4 dc4 11.Nc4 Ne7 12.Qc1 Ned5 13.e4 Ne7 14.Qc2 Nc6 15.Rfd1 Qe7 16.b5 Nd8 17.a4 c6 18.Ba3 c5 19.d4 Qc7 20.dc5 bc5 21.e5 Nd5 22.Nd6 a6 23.Rac1 ab5 24.Qc5 Qc5 25.Rc5 Ba6 26.ab5 Nb7 27.Rc2 Nd6 28.ba6 Nb5 29.Bf8 Bf8 30.Nd4 Nd4 31.Rd4 Ra6 32.Bd5 ed5 33.Rd5 Re6 34.f4 Kg7 35.Kg2 h5 36.h3 Bb4 37.Rc4 Ba3 38.Ra5 Be7 39.Rca4 Rc6 40.Ra7 Rc2 41.Kf3 Rc3 42.Kf2 Bc5 43.Kg2 Rc2 44.Kf3 Rc3 45.Kg2 Rc2 46.Kf1 Rf2 47.Ke1 Rh2 48.h4 Rg2 49.Rc7 Be3 50.Ra3 Bf2 51.Kf1 Rg3 52.Kf2 Ra3 53.Rc4 Kf8 54.f5 gf5 55.Rf4 Rh3 56.Kg2 Ra3 57.Rf5 Ra5 58.Rh5 f6 59.Rf5 Kf7?? 60.Rf6 Ke7 61.Rf5 Ke6 62.Rg5 Re5 63.Re5 Ke5 64.Kg3 Kf5 65.Kh3 Kf4 66.h5 Kg5 67.h6 Kh6 ½–½. linakip – mizara, kurnik, 2012.

7.a3 a5 8.b5 Na7 9.c4 Rb8 10.d4 d5 11.Nbd2 dc4 12.Nc4 Nb5 13.Qa4 Bc6?? (better is 13...c6+=) 14.Nce5+– Qd5? (14...Bd7 15.Nd7 Qd7 16.Ne5+–) 15.Nh4 Nd4 16.Bd5 Ba4? 17.Bf7+– Kf8 18.Bd4 Nd5?? 19.Bd5 Rd8 20.Nef3 Rd5 21.Bg7 Kg7 22.Rad1?? Rhd8?? 23.Rd4?? Rd4-/+ (23...Rd4 24.Nd4 Rd4-/+) 0–1. 3mjack (1790) – popovicigelu, kurnik, 2012.

7.a3 e6 8.c4 Qe7 9.d3 d6 10.Nbd2 0-0-0 11.Re1 d5 12.Qb3 Rhg8 13.e3 h5 14.Bc3 dc4 15.dc4 e5 16.b5 Nb8 17.Bb4 Qe6 18.Rac1 Nbd7 19.a4 e4 20.Ng5 Qg4 21.h4 Nc5 22.Bc5 bc5 23.Bh3 Qh3 24.Nh3 Kb8 25.a5 Bc8 26.Ng5 Rd2 27.Nf7 Ng4 28.Rf1 Rf8 29.b6 Rf7 30.ba7 Ka7 31.Rb1 Rb2 32.Rb2 Bb2 33.Qb2 Ba6 34.Qc2 Re7 35.Rb1 Re6 36.Qb3 Re8 37.Qa3 Re5 38.Rc1 1–0. sacaniev – jerzynowy, kurnik, 2012.

7.b5 Na5 8.d3 0-0 9.Nc3 d5 10.e3 Qd6 11.Qd2 e5 12.a4 Nd7 13.Ba3+= Nc5 14.Bb4 d4 15.Ne4 Be4 16.de4 Rae8 17.Rfd1 Nc4 18.Qe2 Na5 19.Ra3 a6+= 20.ed4 ed4 21.Rad3 ab5 22.ab5 Qd7+= 23.Rd4 Bd4 24.Nd4 Rd8 25.e5 Qe7 26.c4 Rfe8 27.f4 g5 28.Bd5 gf4 29.Ba5 ba5 30.Qg4 Kf8 31.Nc6 Rd5 32.cd5 Qd7 33.Qf4 Kg8 34.Qg5 Kh8 35.Qf6 Kg8 36.Rd4 Qh3 37.Qg5 Kf8 38.Rh4 Qh4 39.Qh4 h5 40.Qh5 Kg7 41.Nd4 Kg8 42.Nf5 Re5 43.Qg4 Kf8 44.Qg7 Ke8 45.Qe5 Ne6 46.de6 Kd8 47.Qh8 1–0. pierre – IndroP, internet, 2008.

6.0-0 d6

7.c4 0-0 8.d4=.

7.c4 Nc6 8.Nd4 (8.d4 0-0 9.a3 a6+=) 8...Nd4 (8...Qd7 9.b5 Na5 10.Bb7 Nb7 11.Qb3=) 9.Bb7+= (< 9.Bd4 Bg2 10.Kg2 Qd7=+) 9...Rb8 10.Bg2 Ne6 (10...Nd7!? 11.Nc3 c5+/-) 11.Qa4 Nd7 12.Bg7 Ng7 13.Nc3 (13.Qa7 0-0+/-) 13...0-0 14.b5 Ne5 (14...h6 15.Qa7 Nf5 16.e3+–) 15.d4 (15.Rfd1 Nd7+–) 15...Ng4 (15...Nd7 16.Qa7 e5 17.e3+–) 16.h3 Nf6 17.Qa7 (better is 17.Rfd1+–) 17...Ra8?? (better is 17...e5 18.de5 de5+–) 18.Ba8 Qa8 19.Qc7 Nf5 20.Qb6 Qa3 21.Rac1 Qa8 22.Rfd1 e6 23.a4 Rb8 24.Qc6 Rc8 25.Qa8 Ra8 26.e4 Ne7 27.e5 de5 28.de5 Ne8 29.Ne4 Nf5 30.Ra1 Kg7 31.a5 Nc7 32.b6 Na6 33.c5 Ne7 34.Rd6 Nd5 35.b7 Rb8 36.c6 Nb6 37.ab6 Nb4 38.c7 Rb7 39.c8Q (39.c8Q Re7 40.Ra8 Re8 41.Qe8 Kh6 42.Qf8 Kh5 43.g4 Kh4 44.Qh6#) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.c4 e5 8.d4 e4 9.Ng5 Nbd7 10.Nc3 0-0 11.Nge4+/- Ne4 12.Ne4 Rb8 13.b5 Re8 14.Nc3 Bg2 15.Kg2 Nf6 16.f3 Qe7 17.e4 Ra8 18.Qa4 Qd7 19.Qa6 c6 20.Rac1 c5 21.dc5 dc5 22.Rfd1 Qc8 23.Qc8+– Rac8 24.Rc2 Red8 25.e5 Ne8 26.Nd5 Kf8 27.f4 h6 28.g4 Nc7 29.Bc3 Nd5 30.cd5 Ra8 31.a4 a6 32.a5 ab5 33.ab6 Rdb8 34.Be1 Rb6 35.Rc5 b4 36.d6 g5 37.d7 Rd8 38.f5 Be5 39.Re5 Rb7 40.Red5 Ke7 41.R5d4 Rdd7 42.Bb4 Kd8 43.Rd7 Rd7 44.Rd7 Kd7 45.Bf8 1–0. x_mt – mahmod, internet, 2009.

7.d3 Nbd7 8.Nbd2 c5 9.b5 a6 10.a4 0-0 11.e4 Qc7 12.Qe2 e6 13.Nh4 Ne8 14.Bg7 Ng7 15.f4 Ra7 16.f5 Rfa8 17.fg6 hg6 18.Rab1 ab5 19.ab5 Ra2 20.Nc4 Ne5 21.Ne3 R8a4 22.Rf2 Rd4 23.Rbf1 f5 24.Ng6 Ng6 25.ef5 Bg2 26.Kg2 Qb7 27.Kg1 ef5 28.Nf5 Qd5 29.Qe3 Qe5 30.Qg5 Nh8 31.Re2 1–0. Polzer – Leserer, corr 1988.

7.d4 0-0=.

6.d3 0-0

7.0-0 c5 8.bc5 bc5 9.Nbd2 Nc6 10.Rb1 Rb8 11.e4 Qc7 12.Nc4 Ba6 13.Nfd2 Bc4 14.Nc4 d6 15.Qd2 Nd7 16.Bg7 Kg7 17.c3 Rb1 18.Rb1 Rb8 19.Rb8 Qb8 20.f4 Qb5 21.Kf2 Nb6 22.Ne3 Na4 23.Qc2 Nb6 24.h4 e5 25.Bf1 c4 26.dc4 Qc5 27.Qb3 (27.Qd3 Qa3+=) 27...ef4= 28.gf4 Qh5 29.Kg3 Qc5 30.Kf2 Qh5 ½–½. Szabo,Laszlo – Adorjan,Andras, Budapest ch–HU, 1968.

7.Nbd2 d5 8.0-0 a6 9.c4 e6 10.e3 c6 11.Rc1 Nbd7 12.Ne5 Ne5 13.Be5 Nh5 14.Bg7 Ng7 15.e4 d4 16.Nb3 e5 17.f4 ef4 18.Rf4 Ne6 19.Rf2 Re8 20.Qg4 Ng5 21.Qf4 Rf8 22.Nd4 Qd4 23.Qg5 Qd3 24.c5 Qb5 25.a3 a5 26.Qe7 Rab8? 27.Bf1+– Rbe8 28.Qb7 Qa4 29.cb6 Qa3 30.Rc6 Qb4 31.Rcf6 Re7 32.Qd5 a4 33.e5 Qe1 34.e6 Re6 35.Qe6! Qe6 36.Re6 Rb8 1–0. Crafty 19.01 – EXchess 3.11, 2004.

7.Nbd2 d6 8.0-0 Nbd7 9.a3 e5 10.e4 d5 11.ed5 (worse is 11.Be5 Ne5 12.Ne5 Ne4=) 11...Nd5 12.c4 Ne7 13.Ng5 Bg2 14.Kg2 h6 15.Nge4 c5 16.Nd6 Nc8 17.N6e4 Nf6 18.Qb3 Ne4 19.Ne4 Nd6 20.Rfd1 Ne4 21.de4 Qc7 22.Rd5 cb4 23.ab4 Rfe8 24.Rad1 Rad8 25.Ba3 Rd5 26.cd5 b5 27.Bb2 a6 28.Bc3 Qd6 29.Qb2 f6 30.Rc1 Kf7 31.Bd2 Re7 32.Be3 Qd7 33.Rc6 Qb7 34.Qc2 Bf8?? 35.Bc5 Rc7 36.Bf8 Rc6 37.dc6 Qc7 38.Bh6 g5 39.h4 Kg6 40.hg5 fg5 41.Bf8 Kf6 42.f3 Qc8 43.Qc5 Kf7 44.Bd6 Qe6+– 45.c7 Kg6 46.c8Q Qc8 47.Qc8 (47.Qc8 Kf7 48.Qf5 Kg7 49.Bf8 Kg8 50.Qf6 a5 51.Qg7#) 1–0. linakip – jhonnyblue, kurnik, 2012.

7.Nbd2 d6 8.0-0 Nbd7 9.e4 e5 10.Nc4 a5 11.c3 Ne8 12.Re1 Bh8 (12...ab4 13.cb4 Qe7 14.a4=) 13.a4 Ba6 14.Nfd2 ab4 15.cb4 b5 16.ab5 Bb5 17.Qc2 Ng7 (17...c6 18.f4+=) 18.Ra8 Qa8 19.Na3 Qb7 20.Nb5 Qb5 21.Qc7 Qd3 (21...Qb4!? 22.Bc3 Qc5 23.Qc5 Nc5+=) 22.Bc1+/- (22.Qd7? Qd2 23.Rb1 Qc2–+) 22...Nf6 23.Qc4 Qc4 24.Nc4 Rb8 25.Bd2 Nfe8 26.Na5 Ne6 27.Nc6 Rb7 28.Bf1 Bf6 29.Ba6 (better is 29.Rd1!?+/-) 29...Rb6= 30.b5 N8c7 31.Ba5 Rc6 32.bc6 Na6 33.Rb1 Bd8?? (better is 33...Kg7=) 34.Bd8+– Nd8 35.Rb6 Nc6 36.Ra6 Nd4 37.Rd6 Kg7 38.Kg2 Ne6 39.Kf3 Kf6 40.Ke3 Ke7 41.Ra6 Kf6 42.Kd3 h6 43.Kc4 h5 44.Kd5 Ke7 45.Re6! fe6 46.Ke5 Kf7 47.h4 Ke7 48.f3 Kf7 49.Kd6 Kf6 50.f4 (50.f4 Kf7 51.e5+–) 1–0. Stein,Leonid – Diaz,Joaquin C, Habana Capablanca Memorial Elite 6th, 1968.

7.Nbd2 h6 8.0-0 e6 9.a3 d5 10.Qc1 Nc6 11.c4 dc4 12.Nc4 Ne7 13.Nce5 Nfd5 14.e4 Nf6 15.Rd1 Nh7 16.Qc2 Rc8 17.Qb3 c5 18.b5 Nf6 19.a4 Nd7 20.Nc4 Bb2 21.Qb2 Kh7 22.a5 Rg8 23.a6 Nf8 24.ab7 Rb8 25.Ra7 Qc7 26.Rda1 Rb7 27.R7a6 Nc8 28.Nce5 Rg7 29.Nc6 Ne7 30.Nfe5 f6 31.Nc4 Nc6 32.e5 f5?? 33.Bc6 Rb8 34.Nd6 Nd7 35.Ra7 Qd8 36.Nb7 Qe7 37.Nd6 Rd8?? 38.Kg2 Qf8 39.Qc3 Nb8 40.f4 Nc6 41.bc6 Ra7 42.Ra7 Kg8 43.Rb7 Rd6 44.ed6 Qd6 45.Rb6 (45.Qg7#) 1–0. linakip – goniec2, kurnik, 2011.

6.d3 d6

7.0-0 0-0 8.c4 c5 9.a3 Nbd7 10.Nc3 Rb8 11.Rb1 d5 12.cd5 Nd5 13.Nd5 Bd5 14.Bg7 Kg7 15.Qd2 Qc7 16.Rfc1 Rfc8 17.bc5 bc5 18.Qe3 Bf3 19.Qf3 e5 20.h3 Rb6 21.Qg4 Rcb8 22.Rb6 ab6 23.Qh4 b5 24.a4 b4 25.Qe7 Rc8 26.a5 h6 27.a6 Nb6 28.Qh4 f5 29.Ra1 b3 30.Rb1 Qf7 31.g4 f4 32.Bb7 Rh8 33.g5 Na4 34.gh6 Kh7 35.e4 Nc3 36.Rb2 g5 37.Qg4+– Kh6 38.Qf5 Qf5 39.ef5 Kg7 40.a7 Nb5 41.a8R Ra8 42.Ba8 Nd4 43.Bd5 f3 44.Bb3 Nf5 45.Bd5 Nd4 46.Kh2 Kf6 1–0. Fritz 6 – EXchess 3.11, 2004.

7.0-0 0-0 8.c4 c5 9.a3 Nbd7 10.Nc3 Rb8 11.Rb1 d5 12.cd5 Nd5 13.Nd5 Bd5 14.Bg7 Kg7 15.Qd2 Qc7 16.Rfc1 Rfc8 17.bc5 bc5 18.Qg5 Qd6 19.Nh4 e6 20.Rb8 Rb8 21.Nf3 Rb2 22.Re1 Ra2 23.Qc1 Qa6 24.Ng5 Qa3 25.Qf4 e5 26.Qh4 Qa5 27.Qh7 Kf6 28.Bd5 Qe1 29.Kg2 Ra1 30.Be4 Qf1 31.Kf3 Ra6 32.Bg6 e4 33.Ne4 Ke7 34.Qf7 Kd8 35.Qe8 Kc7 36.Bf5 Qh1 37.Kf4 Qc1 38.e3 Nb6 39.Qe5 Kc6 40.Be6 Ra4 41.Bc4! Rc4 42.Qe8 Kc7 43.dc4 Qc4 44.h4 a5 45.h5 Nd5 46.Kf5 Qe2 47.Qe5 Kc8 48.Qd5 Qh5 1–0. Comet B25 – Fritz 6, 2004.

7.0-0 0-0 8.c4 Nbd7 9.Nbd2 c5 10.b5 a6 11.a4 ab5 (11...Qc7 12.Qb3=) 12.ab5 Ra1 (12...Qc7 13.Qb3=) 13.Qa1 Qa8 (13...Qc7 14.Bc3=) 14.Qa8 (14.Bc3 Qa1 15.Ra1 Ra8=) 14...Ra8= 15.Ra1 Ra1 16.Ba1 Nf8 (16...e6 17.Ne5=) 17.Ne1 (17.Ng5 d5=) 17...Bg2 18.Kg2 Ne6 19.Nef3 Nd7 (19...Ng4 20.Bg7 Kg7 21.h3=) 20.Bg7 Kg7 21.Ne4 h6 (21...Nc7 22.Nc3=) 22.Nc3 Nc7 23.Kf1 (23.g4 f5 24.gf5 gf5=) 23...e6 (23...f5 24.e3=) 24.e4 f5 25.Ke2 Kf6 26.Ke3 g5 27.Nd2 g4 28.f4 h5 29.Nf1+= e5 30.Kf2 fe4 31.de4 Ne6 32.f5+/- Nd4 33.Ne3+– Nf3 34.h4 Kf7 35.Ke2 Nd4 36.Kd3 Ke8 37.Na4 Kd8 38.Nd5 Nb3 39.Nab6 Nb6 40.Nb6 Nc1 41.Kc2 Ne2 42.Nd5 Ng3 43.Kd3 Nf1 44.b6 (44.b6 Kc8 45.f6 Kd7 46.f7 Ng3 47.f8Q Nf5 48.b7 Ne7 49.Qe7 Kc6 50.b8N#) 1–0. wiking – DenisDiaz, internet, 2010.

7.0-0 0-0 8.c4 e5 9.Nc3 Re8 10.a4 a5 11.b5 Nbd7 12.e4 Nc5 13.Qc2 h6 14.Nd5 Bd5 (14...c6 15.Nf6 Qf6 16.Nd2=) 15.cd5+= Qe7 16.Rae1 Rac8 17.d4 Ncd7 18.Ba3 Qd8 19.Rc1 Nf8 20.Bh3 N8d7 21.de5 de5 22.Qe2 Bf8 23.Bf8 Kf8 24.Rc6 Rb8 25.Rd1 Nc5? 26.d6+– cd6 27.Rdd6 Qe7 28.Rf6 1–0. Bush,Freddy (2045) – Ribelles Sala,Maria Magdalen (1920), England – Spain, 2006.

7.0-0 a5 8.b5 Nbd7 9.c4 e5 10.Nc3 0-0 11.Na4 Re8 12.Re1 Qc8 13.e3 Ng4 14.a3 Nf8 15.Nc3 Ne6 16.d4 ed4 17.ed4 Qd8 18.d5 Nc5 19.Re8 Qe8 20.Qc2 f5 21.Re1 Qf8 22.Nd1 Bb2 23.Nb2 Re8 24.Re8 Qe8 25.h3 Nf6 26.Nd3 Qe4 27.Qb2 Nd3 28.Qf6 Qe8 29.Nd4 Nc5 30.Ne6 Ne6 31.de6 Bg2 32.Kg2 Qf8 33.Qd4 Qe7 34.Qe3 Kg7 35.g4 fg4 36.hg4 Kf6 37.g5+– Kg7 38.Qc3 Kg8 39.Qf6 Qf6 40.gf6 Kf8 41.Kf3 a4 42.Kg3 Ke8 43.Kg4 h6 44.f4 Kf8 45.f5 h5 1–0. Fritz 6 – Comet B25, 2004.

7.0-0 Nbd7 8.Nbd2 0-0 9.Re1 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Qa8 13.c4 Qa3 14.Qb3 Ra8 15.Bb2 Qb3 16.Nb3 Ra2 17.Rb1 Ng4 18.Bg7 Kg7 19.Nfd2 Bg2 20.Kg2 Nge5 21.Ra1 Ra1 22.Na1 c5 23.Nc2 Nc6 24.bc5 bc5 25.Ne4 Nf6 26.Nf6 Kf6 27.f4 e6 28.Kf3 d5 29.Ke3 h5 30.h3 d4 ½–½. Seidel – Faltermann, Klinge–U20 1993.

5.Bg2 Nc6

6.a3 0-0 7.0-0 Ng4 8.Qc1 Bb2 9.Qb2 d6 10.d3 e5 (10...a6 11.c4 Bb7 12.d4+=) 11.Nbd2 (11.b5 Ne7 12.Ne5 d5+–) 11...h5? (better is 11...Bb7!?+=) 12.h3 Nh6 13.e4 (better is 13.b5!? Ne7 14.Ne5 Bh3 15.Bh3 de5 16.Qe5+–) 13...Be6 14.c3 Qd7 15.h4 Bh3 16.Nc4 Bg2 17.Kg2 b5 18.Ne3 f5 19.Ng5 f4 20.Nd5 f3 (20...Nd8!? 21.Qb3 Kg7=) 21.Kg1 Ne7 22.Qd2 Nef5?? 23.Ne3?? Ng3?? 24.fg3+– Ng4 25.Rf3 Rf3 26.Nf3 Rf8 27.Rf1 Ne3 28.Qe3 Qh3 29.Ng5 Qf1 30.Kh2–+ Rf2 31.Qf2 Qf2 32.Kh3 Qd2 33.Nf3 Qd3 34.Ng5 Qc3 35.Ne6 Qa3 36.Nc7 Qb4 37.Ne6 Qe4 38.Ng5 Qg4 (38...Qg4 39.Kg2 Qe2 40.Kg1 b4–+; 38...Qh1#) 0–1. giorgo – kwiaaaatek, kurnik, 2012.

6.a3 Bb7 7.0-0 e6 8.d3 Qe7 9.Nbd2 d6 10.Nb3 Nd7?? (better is 10...a6=) 11.b5 (11.Bg7 Rg8 12.Bb2 0-0-0+–) 11...Na5?? (better is 11...Bb2 12.bc6 Bc6-/+) 12.Bg7+– Rg8 13.Bc3 Nb3 14.cb3 d5 15.a4 Nc5 16.b4 Nd7 17.Qb3 f6 18.Qb2 e5 19.Rfc1 0-0-0 20.Nd2 d4 21.Bb7 Kb7 22.Bd4! ed4 23.Qd4 Qe2 24.Ne4 Rgf8 25.Qd5 Kb8 26.Re1 Qg4 27.Qc6 Ne5 28.Qc2 Nd3 29.Re3 Nf4 30.a5 Nh3 31.Kg2 Rfe8 32.ab6 ab6 33.Qa4 Kc8 34.Qa6 Kd7+– 35.Qb7 Re4 36.Qc6 Ke7 37.Re4 Qe4 38.Qe4 Kf7 39.Kh3 (39.Kh3 Rf8 40.Qc4 Kg7 41.Ra7+–) 1–0. linakip – slavisko, kurnik, 2011.

4.g3 Nc6

5.a3 0-0=.

5.a3 a5 6.b5 Na7 7.a4 0-0 8.Bg2 Rb8 9.Qc1 b6 10.d3 Bb7 11.Nbd2 c6 12.c4 cb5 13.cb5 Rc8 14.Qb1 d6 15.0-0 e5 16.e4 Rb8 17.Rc1 Nc8 18.Qa2 Ne7 19.Ba3 Ne8 20.Rc2 Rc8 21.Rac1 Rc2 22.Rc2 Kh8 23.Qb2 d5 24.Ne1 de4 25.Ne4 f5 26.Ng5 Bd5 27.Bd5 Nd5 28.Ne6 e4 29.Nd8 Bb2 30.Bb2 Kg8 31.de4 fe4 32.Rd2 Nb4 33.Rd4 e3 34.fe3 Nf6 35.Ne6 (35.Ne6 Re8 36.Rd6+–) 1–0. linakip – avni12345, kurnik, 2011.

5.a3 a6 6.d3 d5 7.Nbd2 Bg4 8.Bg2 Qd7 9.0-0 h5 10.h4 0-0-0 11.c4 dc4 12.Nc4 Bf3 13.Bf3 Nd4 14.Bd4 Qd4 15.Rb1 Ng4 16.e3 Qd7 17.d4 f5 18.Qd3 g5 19.hg5 h4 20.Bg4 fg4 21.Qe4 hg3 22.fg3 Rh3 23.Kg2 Rdh8 24.Qf4?? Rh2 25.Kg1 Rh1 26.Kf2 R8h2 27.Ke1 Qc6 28.Rc1 e5! 29.de5?? Be5 30.Qf8 Kd7 31.Qf7 Kd8+/- 32.Qg8 Qe8?? 33.Qe8 Ke8+= 34.Ne5 Rf1 35.Kf1 c6?? 36.Ng4 Ra2?? 37.Rc3+– Kf7 38.Ne5 (38.Ne5 Ke6 39.g6+–) 1–0. linakip – iongosa, kurnik, 2012.

5.a3 d6 6.d3 Bg4 7.Bg2 0-0 8.Nbd2 Bf3 9.ef3 Nh5 10.Qc1 Bb2 11.Qb2 Ng7 12.0-0 e5 13.Ne4 Nd4 14.Rfe1 b6 15.c3 Nc6 16.Qb3 a5 17.b5 Ne7 18.a4 Qd7?? (18...Nh5 19.d4 d5 20.g4 de4 21.gh5 ed4 22.fe4+/-) 19.Nd2 (better is 19.Nf6 Kh8 20.Nd7+–) 19...c6 20.d4 Rfe8 21.c4 ed4 22.Ne4 Qe6 23.Rad1 c5 24.Nc5 Qf6 25.Ne4 Qe6 26.Rd4 Rac8 27.Qd3 Ngf5 28.Rd5 Nd5 29.cd5 Qe5 30.f4 Qd4 31.Qd4 Nd4 32.Nf6 Kg7?? 33.Ne8+– Re8 34.Re8 Nf5 35.Rb8 1–0. linakip – dziuniek69, kurnik, 2011.

5.b5 Na5 6.d3 (6.Bg2 a6 7.ba6 Ra6=) 6...0-0 (6...c6 7.Nc3=) 7.Bg2 b6 (7...c6 8.a4=) 8.0-0 a6 9.a4 d5 10.Nbd2 Bg4 (10...c5 11.bc6 Nc6 12.c4=) 11.Ne5 Qd6 (11...Bc8 12.c4+=) 12.Ng4 Ng4 13.Bg7 Kg7 14.e3 (14.e4 Nf6+=) 14...Nf6 15.Ra2 (15.c4 e5+=) 15...Nb7 (15...c5 16.c4=) 16.Qb1 (16.Qa1 ab5 17.ab5 Ra2 18.Qa2 e5+=) 16...Kg8 (16...e5 17.c4=) 17.c4+= ab5 (17...Rfd8 18.Rc1+=) 18.ab5 Ra2 (18...Rfd8 19.Ra8 Ra8 20.Rc1+/-) 19.Qa2 Nc5 (19...Rd8 20.Ra1+=) 20.d4+/- Nce4 21.Ne4 de4 22.Ra1 c5 23.bc6 Qc6 24.Qa4 Qb7 25.Qa6 Qa6 26.Ra6+/- Rb8 27.Ra4 Rc8 28.Rb4 Rc6 29.Kf1 g5 30.Ke2 g4+= 31.Kd2 Kg7 32.Kc3?? Nd5–+ 33.Kb3 Nb4 34.Kb4 Rf6 35.c5 bc5 36.dc5 h5 37.Be4 Rf2?? 38.c6= Rf1 39.Bd3 Rc1 40.Bc4 Rb1 41.Kc5 Rb8 42.Ba6 Kf6 43.c7 Ra8 44.Bb7 Rf8 45.Kd5 Kg5 46.c8Q Rc8 47.Bc8 Kf6 48.Bd7 Kg6 49.Ke5 Kg5 50.Be8 Kg6 51.Kf4 Kf6 52.e4 e5 53.Ke3 Ke7 54.Bb5 Kf6 55.Kd3 Ke6 56.Kc4 Kd6 57.Be8 Ke7 58.Bf7! Kf7 59.Kd5 Ke8 60.Ke5 Ke7 61.Kf5 Kf7 62.Kg5 h4 63.Kh4 (63.Kh4 Ke6 64.Kg4+–) 1–0. algernon (2165) – ruter (2475), net–chess.com, 2008.

5.a3 b6

6.Bg2 Bb7 7.0-0 0-0 8.d3 e6 9.Nbd2 Rb8 10.Qc1 a6 11.c4 Ne7 12.Re1 d6 13.Nb3 e5 14.c5 bc5 15.bc5 Bf3 16.Bf3 Rb3 17.Qc2 Rb8 18.cd6 cd6 19.Bc3 Re8 20.Rec1 d5 21.Qb2?? Rb2 22.Bb2 e4 23.de4 de4 24.Bg2 Qd2 25.Bc3 Qe2 26.Bf1 Qg4 27.Ba6 Qh5 28.Rc2 Nfd5 29.Be2 Qg5 30.Bg7 Kg7 31.Rc5 Qd2 32.Bf1 e3 33.Rac1 ef2 34.Kh1 Qe3 35.R5c2 Qb6 36.Re2 Nf6 37.Rcc2 Nf5 38.Rb2 Qa7 39.Ra2 Ng4 40.Bh3 Re2 41.Re2 h5 42.Bg4 hg4 43.Kg2–+ Qa3 44.Rf2 Qa8 45.Kg1–+ f6 46.Re2 Qd5 47.Rf2 g5 48.Rf1 Kg6 49.Rf2–+ Ne3 50.Re2 Nc4 51.Rf2 Qd1 52.Kg2 Ne3# 0–1. linakip – 23anetka400, kurnik, 2011.

6.Bg2 Bb7 7.d3 d5 8.Nbd2 e5 9.c4 (9.Be5?! Ne5 10.Ne5 Nd7 11.Nd7 Ba1 12.Qa1 Kd7+=) 9...dc4 10.Nc4 Qd7 11.Nce5 (worse is 11.Be5 b5 12.Ne3 0-0+/-) 11...Ne5 12.Be5 Bf3 13.Bf3 (13.ef3?! 0-0 14.f4 Nd5+/-) 13...0-0-0 14.Qb3 Qe6 15.Qe6 fe6 16.Rc1 Rd7 17.0-0 Rg8 18.Bc6 Re7 19.Ba4 Nd5 20.Bg7 Rgg7 21.e4 Nf6 22.f3 e5 23.Rc6 Nd7 24.Rfc1 Nb8 25.R6c3 a6 26.Bb3 a5 27.Bd5 ab4 28.ab4 c5 29.bc5 bc5 30.Rc5 Rc7 31.Be6 Kd8 32.Rd5 Ke8 33.Rcc5 Na6 34.Rc7 Nc7 35.Rd6 Ke7 36.Ra6?? Ne6 37.Kf2 Nc5 38.Ra7 Kf6 39.Ra3 Rd7 40.Ke3 Rb7 41.h4 Rb1 42.g4 Re1 43.Kf2 Rh1 44.h5 gh5 45.gh5 Rh5 46.Rc3 Rh2 47.Kg3 Re2 48.Rc5 h5 49.Rd5 Kg5 50.Re5 Kf6 51.Rd5 h4 52.Kh4 Re3 53.Kg4 Rd3 54.Rd3 (54.Rd3 Kf7 55.f4 Kf8 56.Kf5 Kf7 57.e5 Kf8 58.Kf6 Kg8 59.Rd8 Kh7 60.f5 Kh6 61.Rh8#) 1–0. linakip – zolcsa, kurnik, 2011.

6.Bg2 Bb7 7.d3 e6 8.Nbd2 Qe7 9.0-0 0-0-0 10.Qc1 Qf8 11.c4 h5 12.Nb3 h4 13.b5 Ne7 14.a4 hg3 15.hg3 Ng4 16.a5 Bb2 17.Qb2 Qh6 18.Rfd1 Bf3 19.ef3 Qh2 20.Kf1 Nf5?? 21.fg4+– Nd6 22.ab6 cb6 23.Ra7 Kb8 24.Qa3 Qh6 25.Ra8 Kc7+– 26.Qa7 Nb7 27.Rd8 Rd8 28.Qb7 Kd6 29.Qb6 Ke7 30.Qc5 Ke8 31.Nd4 Qg7 32.Qd6 Rc8 33.Re1 Ra8 34.b6 Ra6 35.Qb8 Ke7 36.Qb7 Ra2 37.Nc6 Kf8 38.Qd7 Kg8 39.Ne7 Kh7 40.Qd6 Qf6 41.Nd5 Qf2# 0–1. linakip – rabanito2011, kurnik, 2011.

5.b5 Nb4??

6.a3 Nbd5+= 7.c4 Nb6 8.c5 Nc4 9.Bd4 (9.Bc3 d6 10.d3 Ne5 11.Ne5 de5=) 9...d6= 10.d3 (10.cd6 Nd6 11.Nc3 0-0=) 10...e5 (better is 10...dc5!? 11.dc4 cd4 12.Qd4 0-0 13.Qd8 Rd8-/+) 11.Bc3+= e4 12.de4 Bg4 (12...Be6 13.cd6 Nd6 14.e5=) 13.Qd4 Ne5 (better is 13...Be6!?+=) 14.Ne5+– de5 15.Qe5 Be6 16.Bh3?? (16.Qd4 Qd4 17.Bd4 0-0-0+/-) 16...Qd7?? (better is 16...Nh5 17.Be6 Be5 18.Be5 0-0-/+) 17.0-0 0-0 18.Be6 fe6 19.Qf4 (19.Ra2 Rf7 20.Rd2 Qb5=) 19...Rae8 (19...Qb5 20.Qc7 Rf7+=) 20.e5 Nd5 21.Qc4 h5 (21...c6!?+/-) 22.a4 Qe7 23.Bd4 h4? (better is 23...Qg5+–) 24.e4 Kh8 (24...hg3 25.hg3 (25.ed5?! gh2 26.Kh1 Qh4+–) 25...Nf4 26.gf4 Rf4 27.f3 Qg5 28.Kf2 Re4 29.fe4 Qf4 30.Ke1 Qe4 31.Kd1 Be5 32.Nd2 Qd4 33.Rc1+–) 25.ed5 ed5 26.Qd5 Qg5 (26...hg3 27.hg3 Be5+–) 27.Nd2! Qd2 28.Rad1 (28.gh4 Rd8 29.Qb7 Qd4-/+) 28...Qe2 29.Rde1 (29.Qb7 hg3 30.hg3 Rd8+–) 29...Qh5 (29...Qf3 30.Qe4+–) 30.f4 (better is 30.Qb7!? Re7+–) 30...hg3 31.hg3 g5 (31...Rd8 32.Qc4 Rf5 33.Kg2+–) 32.Qf3 (32.Kg2 Qf7 33.Qf7 Rf7+–) 32...Qh6 (32...Qf3 33.Rf3 Rf5 34.Kf2+–) 33.Qh1 (33.f5 Qh3 34.Re2 Rd8+–) 33...Kg8 (33...gf4 34.gf4 (34.Qb7?! fg3 35.Rf8 Rf8+–) 34...Rf5 35.Re3+– (35.Qb7 Rg8 36.Qg2 Bf8 37.e6 Kh7=)) 34.Qh6 Bh6 35.f5 Rd8 36.Rd1 (better is 36.Re4 Rd5 37.e6 Re8+–) 36...Rd5 37.g4 (better is 37.f6 Kf7 38.Kf2+–) 37...Rfd8= 38.Rd2 (38.Kh2 Rd4 39.Rd4 Rd4 40.e6 Rg4 41.Re1+=) 38...Rd4-/+ 39.Rh2 (39.Rd4!? Rd4 40.Kh2-/+) 39...Rg4–+ 40.Kh1 Rf4?? (better is 40...Bf8 41.e6 Bc5–+) 41.Rf4+– Rd1 42.Rf1?? (better is 42.Kg2 gf4 43.Rh6+–) 42...Rf1+= 43.Kg2 Rf5 44.Rh6 Re5 45.c6 b6 46.Kf3 Rf5 (46...Kg7!? 47.Rh2 a6 48.ba6 Rf5 49.Ke3 Ra5+=) 47.Kg4= Rf4 48.Kg5 Kf7?? (better is 48...Ra4 49.Kf6 a5=) 49.Kf4+– Kg7 50.Kg5 Kf7 51.Kf5 Kg7 (51...Ke7 52.Rh7 Kd6 53.Rd7 Kc5 54.Rc7 Kd4 55.Rd7 Kc3 56.c7 a5 57.c8Q Kb3 58.Rd3 Kb2 59.Qc3 Kb1 60.Rd1 Ka2 61.Ra1) 52.Re6 (52.Rd6! Kf7 53.Rd7 Kg8 54.Rc7 Kf8 55.Kf6 Kg8 56.Rg7 Kf8 57.c7 Ke8 58.c8Q) 52...Kf7 53.Ke5 Kg7 54.Re7 Kg6 55.Rc7 1–0. Ollemsolrac – Tradesmen, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 Nc6)

6.c4 d5 7.a3 dc4 8.ab4 Bg4 (8...Qd6 9.Qa4 0-0 10.Na3+–) 9.Bg2 Qd6 10.Ne5 Ne4 (10...Bc8 11.Qa4 0-0+–) 11.Nc4 Qb4 (11...Bb2 12.Nd6 (12.Nb2?! Qd4 13.Nd3 Qa1 14.Be4 0-0-0+–; 12.Be4?! Qd4 13.Nb2 Qe4+–) 12...Nd6 13.Ra5+–) 12.Bg7 Rg8 (12...Qc4 13.Bh8 Nd6 14.Nc3+–) 13.Be4 Rg7 14.Qc2 (better is 14.Bb7!? Rd8 15.Qa4 Qc5+–) 14...Qb5 15.Bd3 (better is 15.Qc3 f6 16.Ra5+–) 15...0-0-0 (15...Qc6 16.0-0 Bf5+–) 16.Nd6! Rd6 (16...Rd6 17.Bb5 Discovered attack; 16...ed6 17.Bb5 Discovered attack) 17.Bb5 f5 18.Ra7 Kb8 19.Qa2 c6 20.Qa5 Kc8 21.Bc4 f4 (21...Rd5 22.Bd5 cd5 23.Qb6 Kd7 24.Rb7 Ke8 25.Qe6 Be2 26.Rb8) 22.Ra8 Kd7 23.Rd8# 1–0. steveberkley – Tradesmen, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 Nc6 5.b5 Nb4)

6.c4 d5 7.a3 Nd3 8.ed3 dc4 (8...0-0 9.Bg2+–) 9.dc4 0-0 10.Nc3 Bg4 11.Bg2 a6 12.Qe2 ab5 13.cb5 c6 (13...Qd6 14.0-0+–) 14.0-0 cb5 15.Rfe1 b4 (15...Re8 16.h3 Bf5 17.Ne5+– (17.Nb5?! Bd3 18.Qe3 Bb5+=)) 16.ab4 Ra1 17.Ra1 Nh5 (17...Qd6 18.b5+–) 18.Qe3 Qd6 19.b5 Qb4 (19...Re8 20.Ne4 Qd7 21.Bg7 Bf3 22.Bf3 Ng7 23.b6+–) 20.Ba3 Qa5 (20...Qb3 21.Be7 Rc8 22.h3+–) 21.Qe7 Nf6 22.Ne5 Kh8 23.Bb2 Ng8 24.Qd6 Qd8 25.Qd8 Rd8 26.Nf7# 1–0. pierre – rufato, internet, 2008.

5.b5 Nb8

6.a4 b6 7.Bg2 Bb7 8.0-0 h5 9.c4 a6 10.d3 ab5 11.cb5 c6 12.bc6 Bc6 13.e3 0-0 14.d4 d5 15.Nc3 Qd7 16.Ne5 Qc7 17.Nc6 Qc6 18.Rc1 Qd6 19.Nb5 Qb4 20.Ba3 Qa4 21.Qa4 Ra4 22.Be7 Re8 23.Bd6 Ne4 24.Be4 de4 25.Nc7 Rd8 26.Nb5 Ra5 27.Bc7 Rc8 28.Nd6 Rf8 29.Ne4 Rb5 30.Nd6 Rb3 31.Rb1 Rb1 32.Rb1 Nd7 33.Bb6 Rb8 34.Nc4 Bf6 35.Rb2 Bd8 36.Bd8 Rd8 37.Rb7 Nf6 38.Ne5 Rf8 39.h4 Ne4 40.Kg2 Kg7 41.f4 Nd6 42.Rd7 Nf5 43.Kf3 Kf6 44.e4 Ng7 45.Ra7 Ne6 46.Nd7 Kg7 47.Nf8 Kf8 48.d5 Nd4 49.Kg2 Kg7 50.e5 Kf8 51.d6 Ke8 52.Ra8 Kd7 53.Rf8 Ke6 54.d7 Kd7 55.Rf7 Ke6 56.Rf6 Kd5 57.Rg6 Ke4 58.Rh6 Nf5 59.Rh5 Nh4 60.gh4 1–0. rryy44 – kazi1964, kurnik, 2012.

6.Bg2 a6 7.a4=.

6.Bg2 c6 7.0-0 (7.c4 cb5 8.cb5 0-0=) 7...b6 (7...cb5 8.Nc3=) 8.c4 (8.Ne5 Bb7+=) 8...Bb7 (8...0-0 9.Ne5=) 9.Nc3 (9.e4 0-0 10.e5 Ne8+=) 9...a6 (9...0-0 10.a4=) 10.bc6 Bc6 11.Nd5 (11.Qb3 0-0+=) 11...Bd5 12.cd5 0-0 13.Qb3 b5 (13...d6 14.Rfc1+=) 14.a4+/- ba4 (better is 14...b4!? 15.a5 e6 16.de6 de6+/-) 15.Qb7+– (15.Ra4?! d6+=) 15...Nc6 16.dc6 Rb8 17.c7 Rb7 18.cd8Q (18.cd8N?! Rb2 19.Nf7 Kf7 20.Ra4 Rfb8=; 18.cd8B?! Rd8 19.Bd4 Ne8+–) 18...Rd8 19.Bd4 Rb4 (19...Ne8 20.Ra4 Nc7 21.Rc1+–) 20.Bc3 Rc4 (20...Re4 21.Nd4 e5 22.Be4 Ne4 23.Nf3+–) 21.Ne5 Rc5 22.Ra4 Nh5 23.Ba5 Rdc8 24.Nd7 Rc1 25.Bb7 Rf1 26.Kf1 Rc1 27.Kg2 Rc2 28.Ba6 Nf6 29.Nf6 Bf6 30.d4 e6 31.e4 Rc6 32.Bd3 h5 33.Bd2 Be7 34.Ra8 Kg7 35.h4 Kf6 36.Rg8 e5 37.d5 Bd6 38.Bg5# 1–0. b4_player – opponent, gamecolony.com, 2007.

4.g3 d5

5.Na3 0-0 6.Bg2 b6 7.c4 Bb7 8.0-0 Nbd7 9.Nd4 c5 10.Ndc2 Qc8 11.cd5 Bd5 12.Bd5 Nd5 13.Bg7 Kg7 14.Qb1 cb4 15.Nb4 Nb4 16.Qb4 Qc5 17.Qb2 Qe5 18.d4 Qe4 19.Nc4 Rac8 20.Rac1 h5 21.h4 Nf6 22.Ne5 Rfd8 23.Nf3 Qd5 24.Rc2 Rc2 25.Qc2 Qe4 26.Qe4 Ne4 27.Rc1 Rd7 28.e3 Rb7 29.Rc6 b5 30.Ra6 f6 31.Kg2 Kf7 32.Ne1 Rc7 33.Kf3 f5 34.Nd3 Nd6 35.Nc5 Nc8 36.Ra5 Nd6 37.Kf4 Kf6 38.f3 Rc8 39.e4 1–0. Giffard – Varlet, Montpellier 1998.

5.Na3 a5 6.b5 c5 7.bc6 Nc6 8.Bg2 Qb6 9.Bf6 Bf6 10.Rb1 (10.c3 Qc5 11.Qa4 Bc3+=) 10...Qc5-/+ 11.Nb5 Nb4 12.0-0 (12.Nbd4 Na2 13.c3 Qc4+=) 12...Qb5 13.a3 Bf5 14.ab4 a4 15.e3 0-0 16.d3 Bc3 17.Nd4 Qd7 18.Ne2 Rfc8 19.Nc3 Rc3 20.b5 Rac8 21.Rb4 (21.e4 Bg4 22.f3 Be6-/+) 21...a3 (21...Rc2!? 22.g4 Be6-/+) 22.Qa1 Qd6 23.Ra4 Bd7 24.Rb1 Rc2 25.Ra3 Bb5 26.h4 ½–½. Bricard,Emmanuel (2465) – Rodier,Arnaud (2165), Saint Affrique op, 1999.

5.Na3 c6 6.Rb1 b5 7.Bg2 0-0 8.0-0 a5 9.c3 Nfd7 10.Qb3 Nb6 11.d3 e5 12.c4 dc4 13.dc4 ab4 14.Qb4 Ra4 15.Qb3 bc4 16.Qc2 Bf5 17.e4 Be4! 18.Qe4 c3! 19.Qe3 (19.Bc3 Ra3 Double attack (19...Re4 Discovered attack; 19...Ra3 Deflection; 19...Ra3 Decoy)) 19...cb2 20.Rb2 e4 (20...e4 21.Rb6 ef3 22.Rb8 Qb8 23.Qf3 Rc8–+) 0–1. Marin,Mihail (2545) – Al Modiahki,Mohamad (2425), Benasque op, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5)

5.c4 dc4!? 6.Na3 Be6-/+.

5.d3 a5 6.b5 c5 7.Bg2 a4 8.0-0 0-0 9.a3 Nbd7 10.Nbd2 Qc7 11.Rb1 c4 12.b6 Nb6 13.Be5 Qd8 14.Bd4 Nfd7 15.Bg7 Kg7 16.dc4 dc4 17.Rb4 Qc7 18.Ne4 Ra5 19.Nc3 Kg8 20.Qd4 Qd6 21.Qd6 ed6 22.Rfb1 d5 23.Rb6 Nb6 24.Rb6 Rd8 25.Nd4 Kf8 26.e3 Ke7 27.Ndb5 Ra6 28.Ra6 ba6 29.Nd4 Be6 30.Nc6 1–0. Bencze – Krisztian, 1992.

5.d3 Na6 6.b5 Nc5 7.Nbd2 Bd7 8.a4 a6 9.c4 Be6 10.Ng5 c6 11.Ne6 fe6 12.Bg2 0-0 13.0-0 Ne8 (better is 13...ab5!? 14.ab5 Ra1 15.Qa1 cb5 16.cb5 Qb6+=) 14.Bg7+/- Ng7 15.d4 Nd7 16.bc6 bc6 17.a5 Ne8 18.Qa4 Qc7 (18...Rc8!?+/-) 19.Rfc1+– Qa7 (19...Nef6 20.Bh3 Qd6 21.cd5 cd5 22.Rc6+–) 20.cd5 (better is 20.Qc6 Ng7 21.Bh3 Qd4 22.Be6 (22.Qd7?! Qf2 23.Kh1 Qe2+–) 22...Ne6 A) 23.Qd7?! Qf2 24.Kh1 Qe3 25.Qd5 Rad8= (25...Qe2?? 26.Re1 Qh5 27.Re5 Qe5 28.Qe5+–); B) 23.Qe6 Kg7 24.Nf3+– (24.Qe7?! Rf7 25.Qe3 Qe3 26.fe3 dc4+–)) 20...Nd6?? (better is 20...cd5 21.Rc6 Rf6+/-) 21.dc6+– Qd4 (21...Nf6 22.Nb3+–) 22.Nf3 (better is 22.Qd4 Nf6 23.Qe5+–) 22...Qa7 (22...Qa4 23.Ra4 Rfc8+–) 23.cd7 1–0. Krammich,H – Theobald,Heiko, Hassloch op–B, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5)

5.d3 b6 6.Nc3 (6.Bg2 c6=) 6...Bb7 (6...Qd6 7.a3=) 7.Bg2 0-0 8.0-0 Nbd7 9.Re1 (9.d4 e6=) 9...Rb8 (9...e5 10.a3+=) 10.e4 (10.b5 e5=) 10...de4 11.Ne4 Re8 (11...Ne4 12.Bg7 Nf2 13.Bf8 Nd1 14.Be7+=) 12.c4 (12.Nf6 Nf6 13.b5 Ra8=) 12...e6 (12...Ne4 13.Bg7 Nf2 14.Qe2 Kg7 15.Qf2+=) 13.Rc1 (13.Qe2 Ne4 14.de4 Be4 15.Bg7 Bf3 16.Qf3 Kg7=) 13...Qe7 (13...Ne4!? 14.Bg7 Nf2 15.Kf2 Kg7+=) 14.Nf6= Nf6 15.b5 c5 16.d4 (16.bc6 Bc6 17.Be5 Rbc8=) 16...cd4 (16...Rbd8 17.Ne5=) 17.Qd4 (17.Nd4 Red8 18.Qe2 Rbc8=) 17...Red8 (17...Rbd8 18.Qe3=) 18.Qh4 Rbc8 (18...Bf3 19.Bf3 Rd2 20.Re2 Rb2 21.Rb2+=) 19.Ng5+= Nh5 20.Bg7 Kg7?? (20...Bg2 21.g4 Ba8 22.gh5 Qb7+–) 21.Ne6!+– fe6 22.Qe7 Kh6 23.Bb7 Re8 24.Qh4 Rc5 25.g4 Re7 26.Qe7 (26.Qe7 Rg5 27.Bf3 Rf5 28.h4 Rf7 29.Qf7 g5 30.Re6 Nf6 31.Qf6#) 1–0. gbsrao (2100) – nottoo (2020), net–chess.com, 2008.

5.d4 b6 6.Bg2 Bb7 7.Nbd2 c5 8.c3 0-0 9.0-0 Nbd7 10.Re1 Rc8 11.b5 a6 12.a4 Qc7 13.e3 e6 14.Rc1 ab5 15.ab5 Ra8 16.c4 Ra2 17.Qb3 Rfa8 18.Ra1 Ra1 19.Ra1 Ra1 20.Ba1 dc4 21.Qc4 Nd5 22.Qc1 0–1. Hartlaub – Costescu, Wildbad 1993.

5.d4 Bg4 6.Bg2 0-0 7.0-0 c6 8.Nbd2 Bf3 9.Nf3 Nbd7 10.c3 Nb6 11.Bc1 Ne4 12.Qc2 Nc4 13.e3 f6 14.Nd2 f5 (better is 14...Ned2!? 15.Bd2 e5+=) 15.Nc4+= dc4 16.Be4 fe4 17.Qe4 Rc8 (better is 17...Qd6!?+=) 18.Qe6+– Kh8 19.Qc4 b5 20.Qb3 Rf3 21.Qe6 Bh6 (21...Qc7 22.a4 Rcf8 23.ab5 cb5 24.Bd2+–) 22.Bb2 (22.a4 Rf6 23.Qg4 Rc7+–) 22...Qc7 23.e4 Rcf8 24.e5 Bd2 25.Qb3 e6? (better is 25...Qd7!? 26.e6 Qd6+–) 26.Qe6 Bc3 27.Bc3 Rc3 28.a3 (28.Rfc1!? Rc1 29.Rc1 Qd8+–) 28...Rc4 29.Rfd1 Rc2 (29...Qd8 30.Qg4 Rc2+–) 30.d5?? (30.f4!? Qd8+–) 30...Rcf2?? (better is 30...Qb6!? 31.Qh3 Qf2 32.Kh1 Qf3 33.Kg1 cd5-/+) 31.Qc6 (better is 31.Rdc1+–) 31...Qe5= 32.d6 (32.Qb5?? Qh5 33.h4 Qf3 34.Qf1 Qg3 35.Qg2 Qg2) 32...Qe3 33.Kh1 Qe6 (better is 33...Qe2 34.Kg1 Rh2+=) 34.Qc3?? (34.Re1 Qh3 35.Qc3 R8f6 36.Re8 Kg7 37.Qc7 Kh6 38.Qc1 g5 39.Qg1–+) 34...Kg8–+ 35.Qd3 (35.Qe1 Qh3 36.Qg1–+) 35...Qh3 36.Qd5 (36.Qb3 R8f7 37.Qf7 Kf7 38.d7 Qh2) 36...R8f7 0–1. stampyshortlegs – Tony_Farrell, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5)

5.e3 0-0 6.c4 c6 7.Na3 Bg4 8.Bg2 Nbd7 9.Qc2 Rc8 10.0-0 Re8 11.Qa4 a6 12.b5 (12.d3!?=) 12...cb5 13.cb5 ab5 (13...Nc5!? 14.Qd1 Nd3+=) 14.Qb5+= Nc5 15.Ne5 Bf5 16.Bd4 Qd6 17.Rac1 b6 18.h3 Ra8 (better is 18...Nfe4-/+) 19.Rc3?? (better is 19.Nec4 dc4 20.Nc4=) 19...Nfe4–+ 20.Be4? (better is 20.Rc2 Be5 21.Be5 Qe5 22.d4–+) 20...Ne4 (20...Be4?! 21.f4-/+; worse is 20...de4 21.Nac4 Qb8 22.Nc6+/- (22.Nb6?! Na4=)) 21.g4 0–1. Hristov,B (1705) – Genov,Ivaylo, Varna BUL, 6th Open, 2012.

5.e3 c6 6.Bg2 0-0 7.0-0 Nbd7 8.d3 Re8 9.Re1 e5 10.d4 (10.e4 Qc7+=) 10...e4-/+ 11.Nfd2 Nf8 (11...Nb6 12.c4-/+) 12.c4+= Be6 13.c5 b6 14.a4 Bg4 15.f3 ef3 16.Nf3 Ne6 17.Nbd2 Ne4 (17...a5 18.b5-/+) 18.Qc2+= N6g5 (18...Bf5 19.Ne4 Be4 20.Qd2+=) 19.Nh4 (better is 19.Ng5!? Ng5 20.b5=) 19...Nh3 20.Bh3 Bh3 21.Ne4 Re4 (21...de4?! 22.Ng2=) 22.Ng2 Qg5 (22...Rb8 23.b5-/+) 23.Qd3 (23.cb6!? ab6 24.Qc6=) 23...Rae8 24.Bc1? (24.Nf4 Bf5 25.Qa6+=) 24...Bd4!–+ 25.Bd2 (25.ed4 Re1 Double attack (25...Re1 Pinning; 25...Re1 Deflection; 25...bc5 Decoy)) 25...Ba1 26.Ra1 Bg2 27.Kg2 Rh4 (better is 27...bc5 28.Rc1 c4 29.Qf1–+) 28.Kh1 (28.cb6 ab6 29.a5–+) 28...Qg3 29.Qe2 Qe5 Black prepares d4 (29...bc5 30.bc5 Qe5 31.Rf1–+) 30.Rf1 (30.Rc1 bc5 31.Rc5 Qe4 32.Qg2 Qf5–+) 30...d4 31.cb6 ab6 32.Qf2 (32.a5–+) 32...de3 (better is 32...Qd5 33.Qg2 de3–+) 33.Qf7+– Kh8 34.Bc3!! Qc3 (34...Qc3 35.Qe8) 35.Qe8 Kg7 36.Qf8 1–0. KMiroslav – ffrancis, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Bg7)

5.e3 Nc6 6.a3 e6 7.Bb5 a6 8.Bc6 bc6 9.Bf6 Bf6 10.d4 0-0 11.Qd3 (11.Nbd2 Rb8=) 11...Re8 (11...a5 12.c3+=) 12.0-0 e5 13.c3?? (13.de5 Be5 14.Ne5 Re5+=) 13...ed4?? (better is 13...e4 14.Qe2 Bg4–+) 14.ed4 (14.cd4 a5 15.Qc3 ab4 16.Qb4 Qd6=) 14...Bf5 15.Qd2 Be4 16.Ne1 (16.Qd1 Qd6+=) 16...Qd7 (16...a5 17.ba5 c5 18.dc5+=) 17.Nd3 (17.f3 Bf5=) 17...Qh3 (17...Qf5 18.Nf4-/+) 18.Nf4= Qg4 19.f3 Bf3 20.Qf2 Re4?? (20...Be4 21.Nd2+=) 21.Nd2?? (better is 21.Qf3 Qf3 22.Rf3 Rd4 23.Ng6 (23.cd4?! Bd4 24.Rf2 Ba1+/-) 23...Rd1 24.Kg2+–) 21...Rf4= 22.Nf3 h5?? (22...Rf5 23.Kg2=) 23.Kh1?? (better is 23.h3 Qf3 A) 24.gf4 Qc3 (24...Qh3?! 25.Qf3 Qf3 26.Rf3=) 25.Rac1 Qh3-/+ (25...Qa3?! 26.Rc6 Bg7 27.f5-/+); B) 24.Qf3 Rf3 25.Rf3+–) 23...Re8?? (better is 23...Rf5+=) 24.gf4+– Kg7 (24...Qf4 25.Rae1 Re4 26.Re2+–) 25.a4 (25.Ne5 Qh3+–) 25...Re4 (25...Qf4 26.Rae1 Re1 27.Qe1+–) 26.Rg1 (26.Ne5!? Qh3 27.Rac1 Bh4+–) 26...Qf5 27.Ng5 (better is 27.Rae1+–) 27...Rf4+= 28.Qg3 (28.Qe2 Bg5 29.Rg2= (29.Qa6?? Rf2 30.Rg2 Rg2 31.Kg2 Qe4 32.Kf1 Qf3 33.Ke1 Qc3 34.Ke2 Qb2 35.Kf3 Qa1–+)) 28...Bg5?? (28...h4 29.Qg2 Rf2 30.Rgf1 Rg2 31.Rf5 gf5 32.Kg2 Bg5 33.Ra2+/-) 29.Rg2?? (better is 29.Qg5 Qe4 30.Qg2+–) 29...Bh4 30.Qe3 Bg5 (30...Re4 31.Qd2+=) 31.Rag1 f6?? (better is 31...Bf6=) 32.Rg5?? (better is 32.Qe7 Kh8 33.Qd8 (33.Rg5 fg5 34.Qg5 Rf1-/+) 33...Kh7 34.Qc7 (34.Rg5 fg5 35.Qg5 Qe4 36.Qg2 Rf3–+) 34...Kh6 35.Qb8+– (35.Qc6?! Rf1 36.Qa6 Rg1 37.Rg1 Qf3 38.Rg2 Qd1 39.Rg1 Qf3 40.Rg2 Qd1 41.Rg1 Qf3=)) 32...fg5–+ 33.h4?? (better is 33.a5–+) 33...Rh4 34.Kg2 Rg4 35.Kh1 Rh4 36.Kg2 Qg4 (36...Qc2 37.Kf1 Rf4 38.Ke1–+) 37.Kf1 (37.Kf2 Qf4 38.Qf4 gf4–+) 37...Qh3 (better is 37...Qd1 38.Kg2 Qc2 39.Kf1 Rf4 40.Ke1–+) 38.Ke2 (38.Qh3 Rh3 39.Rg5 Rc3 40.Re5–+) 38...Re4 39.Rg3 Re3 (better is 39...Qg3! 40.Qe4 de4 41.Kd2 Qf2 42.Kc1 h4 43.a5 h3 44.Kd1 h2 45.d5 h1Q) 40.Re3 Qg4 41.Kd3 (41.Kd2 h4 42.Re7 Kf6–+) 41...h4 (41...Qd1) 42.c4 (42.Re7 Kf6 43.Re1 h3–+) 42...dc4 (better is 42...Qd1 43.Kc3 Qc1 44.Kd3 Qc4 45.Kd2 Qd4 46.Ke2 Qb4 47.Kf2–+) 43.Kc4 Kf6 44.Re8 Qf4 (44...h3!? 45.Rf8 Ke7 46.Rf2–+) 45.Rf8 Ke6 46.Rf4 (46.Re8 Kf7 47.Rd8 h3–+) 46...gf4 47.b5 ab5 48.ab5 cb5 49.Kb5 Kd6 (better is 49...Kd5 50.Ka6–+) 50.Kc4 f3 (better is 50...g5 51.Kc3 Kd5 52.Kd3–+) 51.Kd3 h3 52.Ke3 h2 (52...h2 53.Kf3 h1Q 54.Kf4 Kd5 55.Ke3 Qg1 56.Kf4 Kd4 57.Kf3 g5 58.Ke2 Qg2 59.Ke1 Ke3 60.Kd1 Qd2) 0–1. Eries – pieeater, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5)

5.c4 c6

6.cd5= cd5 7.Bg2 Qb6 8.Qb3 0-0 9.Na3 Na6 10.Nc2 Bd7 11.0-0 Rfc8 12.d3 Qc6 13.Ne3 Qd6 14.a3 Nc7 15.Be5 Qe6 16.Rac1 Bc6? (better is 16...Nce8+=) 17.Bc7+– (17.Bc7 Rc7 18.b5+–) 1–0. Zimmerer,Martin – Gebhardt,Steffen, Baden–ch MB Viernheim, 1984.

6.Bg2 0-0 7.Na3 Qb6 8.Qb3 a5 9.ba5 Qa5 10.cd5 cd5 11.0-0 Nc6 12.d3 e5 13.Nc2 d4 14.a4 Be6 15.Qb5 Qc7 16.Ng5 Ra5 17.Ne6 Rb5 18.Nc7 Rb2 19.Rfc1 Na5 20.Nb5 Bh6 21.e3 Ng4 22.Rab1 Ra2 23.Ra1 Ra1 24.Ra1 de3 25.fe3 Ne3 26.Ne3 Be3 27.Kf1 f5 28.Ke2 f4 29.Be4 Rc8 30.Ra2 Kf8 31.Nd6 Rc7 32.Nb5 Rc1 33.Nd6 Nb3 34.Nb5 b6 35.Bd5 Rb1 36.Bb3 Rb3 37.Nc7 Bg1 38.Kf1 Be3 39.Ke2 Kf7 40.Nd5 Bg1 41.gf4 Bh2 42.fe5 Be5 43.Ke3 h5 44.Ke4 Bg3 45.Nc3 ½–½. Fredriksson – Baeckstroem, corr SSKK 1–422 1988–89.

5.d3 0-0

6.Nbd2 c6 7.c4 dc4 8.Nc4 Be6 (8...b5 9.Ncd2+=) 9.Bg2= Nbd7 (9...b5 10.Na5=) 10.0-0 Nb6 11.Na5 (11.Qc2 Nc4 12.dc4 Qb6=) 11...Qd7 12.Qc2 Rab8 (12...Rad8 13.Nd4=) 13.a3 (13.Nb3 Bb3 14.Qb3 Rbd8=) 13...Nfd5 (13...Rfd8 14.Rac1=) 14.e4 (14.Bg7 Kg7 15.Ne5 Qd6+=) 14...Nc7 (14...Nf6 15.Nc4+=) 15.Ne5 (15.Bg7 Kg7 16.Nc4 Rbd8+=) 15...Qe8 16.f4 Nd7 (16...f6 17.Nec4+=) 17.Rac1 (17.d4 f6 18.Nd3 Qd8+/-) 17...Ne5= 18.fe5 Qd7 (18...Bh6 19.Rcd1+=) 19.d4 Rfe8? (19...Bh6 20.Rcd1+=) 20.Qf2 (better is 20.d5!? Nd5 21.ed5 Bd5 22.Qf2+–) 20...Bh6 21.Rcd1 b6 22.Nc6 Qc6 23.d5 Qc4 24.de6 Qe6 25.Kh1 Rf8 26.Rd3 Bg7 27.Qf4 Nb5 28.g4 Rbd8= 29.Rh3 Nd4 30.g5 Be5 31.Qh4 h5 32.gh6 Kh7 33.Rd3 Nf3 34.Rdf3+/- Bb2 35.Bh3 Qc4 36.Qe7 Rde8?? 37.Rf7+– Rf7 38.Rf7 (38.Rf7 Qf7 39.Qf7 Kh6 40.Qe8+–; 38.Qf7?! Qf7 39.Rf7 Kh6 40.Ra7 Re4=) 1–0. Wolski,T (2310) – Eriksson,I (2095), Politiken Copenhagen DEN, 1996.

6.Nbd2 c6 7.Bg2 a5 8.a3 Bg4 9.c4 Qb6 (9...Na6 10.ba5 Qa5 11.0-0=) 10.c5 Qc7 11.Nb3 Bf3 12.Bf3 Na6 13.Qd2 a4 14.Nd4 e5 15.Nc2 Qe7 16.Rb1 Nc7 17.0-0 Nb5 18.Bg2 Rfe8 19.Rfe1 Qd7 20.Qg5 h6 21.Qd2 Kh7 22.Bc1 Rad8 23.Bb2 d4 24.Rf1 Nd5 25.Ne1 f5 26.Nf3 Ndc3-/+ 27.Bc3 dc3 28.Qa2 e4–+ 29.Ne1 ed3 30.Nd3 Nd4 31.Nf4 g5 32.e3 gf4 33.ed4+= Qd4 34.Qc2 Qd3 35.Qd3 Rd3–+ 36.Rbd1 Red8 37.Bf3?? c2 38.Rc1 Rf3 39.Rc2 Rb3 40.Ra2 0–1. Mirani,Robert – Remmel,Tim (2200), Haarlem AKN op 8th, 1999.

6.Nbd2 c6 7.Bg2 a5 8.ba5 Qa5+=.

6.Nbd2 Bg4 7.Bg2 c6 8.0-0 a5 9.a3 Na6 10.Rb1 ab4 11.ab4 Re8 12.Re1 Nc7 ½–½. Thoma – Zumtobel, Goetzis 1996.

6.Bg2 a5 7.ba5 c5 8.0-0+=.

6.Bg2 Na6 7.a3 c6 (7...c5 8.bc5 Nc5 9.0-0=) 8.Nbd2 Bg4 9.c4 Nc7 (9...dc4 10.dc4 Qd6 11.h3 Bf3 12.Nf3+=) 10.Qb3 (10.0-0 dc4 11.Nc4 Bf3 12.Bf3 Qd7=) 10...Qc8 (10...Qd7 11.Ne5 Qd6 12.Ng4 Ng4 13.0-0=) 11.h3 (11.Be5 Rd8=) 11...Bd7 (11...Be6 12.g4=) 12.Ne5 (12.Be5 Rd8=) 12...Be6 13.Ndf3 dc4 (13...Nfe8 14.Qc2=) 14.dc4 (worse is 14.Nc4 b5 15.Nfe5 Qa6-/+) 14...Nd7 (14...Rd8!?=) 15.Nd7+= Bb2 16.Qb2 Bd7 17.Rd1 f6 (17...Be6 18.Qc3+=) 18.Qd4 Rd8 (18...Bf5 19.Nh4+=) 19.0-0 Bf5 (19...a5 20.Qc5+=) 20.Qh4 Kg7 (20...g5 21.Qh6+=) 21.e4+/- Be6 22.e5 a5 23.Nd4 Bf7 (23...ab4 24.ab4 g5 25.Qh5+/- (25.Ne6?! Qe6 26.ef6 ef6=)) 24.Rfe1 (24.b5 cb5 25.Nb5 Nb5 26.cb5 Qc5 27.Bb7 Rab8+/-) 24...ab4+= 25.ab4 Ne6 (25...Ra4 26.Nc2+=) 26.ef6 ef6 27.Ne6 (27.c5 Nd4 28.Rd4 Re8+=) 27...Qe6 28.Re6 (better is 28.Bd5! Qd7 29.Bf3=) 28...Rd1+= 29.Kh2 Be6 30.Qe4 (30.Qf4 Rad8+=) 30...Kf7 31.b5 Rd6 (better is 31...Ra4!? 32.Qf3 Rd7 33.bc6 bc6+=) 32.Qh4 (32.Qf4 Rad8 33.bc6 bc6+=) 32...h5= 33.c5 (better is 33.bc6 bc6 34.Qf4=) 33...Rd7?? (33...Rd2 34.Qf4 Raa2-/+) 34.bc6+– bc6 35.Bc6 Rc7 (35...Rc8 36.Bd7 Bd7 37.Qc4 Be6+–) 36.Ba8 (36.Ba8 Rc5 37.Qe4+–) 1–0. Guerrini,Donato (2030) – Bardelli,Alberto (1800), 7th Isola d'Elba op, 2009. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Bg7 5.d3 0-0)

6.Bg2 Qd6 7.Qd2+=.

6.Bg2 e6 7.Nc3 (7.0-0 Qe7=) 7...c6 (7...Qe7 8.a3+=) 8.e4 (8.a3 Qd6=) 8...de4+= 9.Ne4 Ne4 10.Bg7 (10.de4?? Bb2 11.Qd8 Rd8–+) 10...Nf2 11.Kf2 Kg7 12.Qd2 (12.d4 f6+=) 12...Qf6 (12...Qb6 13.d4+=) 13.d4. gbsrao (2120) – hsingletary (2155), net–chess.com, 2008.

5.d3 Qd6

6.a3 a5 7.Be5 Qd7 8.ba5 Nc6 9.Bc3 0-0 10.e3 Na5 11.Bg2 c5 12.0-0 Nc6 13.Nbd2 Rd8 14.Qe2 Qc7 15.Nb3 Qd6 16.a4 e5 17.h3 h6 18.a5 Be6 19.Rfe1 Re8 20.Bb2 c4 21.Ba3 Qc7 22.dc4 dc4 23.Nc5 Na5 24.Ne6 Re6 25.Bb4 Nd5 26.Ba5 Ra5 27.Ra5 Qa5 28.Nd2 Rc6 29.Rc1 Rc5 30.Nc4 Nc3 31.Qd3 e4! 32.Be4 Qa6 33.Qd8 Kh7 34.Bd3 Rd5 35.Qe7 Rd3! 36.cd3 Ne2 37.Kf1 Nc1 38.Qf7 Nd3 39.Kg1 b5 40.Nd2 Qc6 41.Qb3 Qc1 42.Nf1 Qc3 43.Qd1 b4 44.Nd2 Nb2 45.Qe2 Qc2 (46.Kf1 Nd3–+) 0–1. Crafty 19.01 – Fritz 6, 2005.

6.a3 a5 7.Be5 Qd7 8.ba5 Nc6 9.Bc3 0-0 10.e3 Re8 11.Bg2 e5 12.0-0 e4 13.Nd4 Na5 14.Nd2 b6 15.a4 Ba6 16.Ba5 ba5 17.N2b3 Qd6 18.Na5 c5 19.Ndb3 Nd7 20.Ra2 Bc3 21.de4? Bf1–+ 22.Nb7 Qc7 23.Kf1 c4 24.Nd4 Bd4 25.ed5 c3 26.Qd4 Qb7 27.Ra1 Qb2 28.Qd1 Ra5 29.h3 Rea8 30.f4 Ra4 31.Ra4 Ra4 32.Kf2 Ra1 33.Qe2 Nf6 34.Kf3 Rc1 35.Qa6 Qc2 (36.Qe2 Qd2–+) 0–1. Crafty 19.01 – Fritz 8, 2005.

6.a3 a5 7.Be5 Qd7 8.Bg2 Nc6 9.c3 ab4 10.cb4 Ne5 11.Ne5 Qe6 12.d4 Ne4 13.f3 Nd6 14.f4 c6 15.Qd2 f6 16.Nd3 Nc4 17.Qc3 Qe3 18.b5 Bf5 19.bc6 bc6 20.Ra2 Bd3 21.Qd3 f5 22.Qe3 Ne3–+ 23.Bf3 Bd4 24.a4 e5 25.fe5 g5 26.Bh5 Kd7 27.Nd2 Rhb8 28.h4 g4 29.Bf7 Be5 30.Kf2 Bd4 31.Ke1 f4! 32.gf4 Rf8 33.Nb3 Bb6 34.Bh5 Rf4 35.a5 g3 36.Bf3 Ra5! 37.Rb2 Rb5 38.Kd2 Nc4 39.Kc2 0–1. Doctor? 3.0 – Fritz 6, 2004.

6.a3 a5 7.Be5 Qd7 8.Bg2 Nc6 9.c3 ab4 10.cb4 Ne5 11.Ne5 Qe6 12.d4 Ne4 13.f4 f6 14.Nd3 0-0 15.Qc1 f5 16.Ne5 Qb6 17.e3 Be5 18.fe5 Bd7 19.Nc3 e6 20.0-0 Ng5 21.a4 Kg7 22.Qb2+= Qa7 23.a5 Rfc8 24.Qe2 Qb8 25.Qd3 Rf8 26.Qc2 Qd8 27.b5 c6 28.b6 c5 29.Ne2 Bb5 30.dc5 Qb8 31.Rfc1 Re8? 32.Nd4+– Bc4 33.c6 Qe5 34.Qd2 Qb8 35.cb7 Ra6 36.Nb5!! Qe5 37.Nc7 Rb8 38.Ra4 Ne4 39.Be4 fe4 40.Rcc4 Rb6 (40...Rb7 41.Rc6 Rc7 A) 42.bc7?! Rc6 43.a6 Qc7= (43...Rc7? 44.a7 Rc8 45.a8Q Ra8 46.Ra8+–); B) 42.Rc7 Kh6 43.Rc8+–) 1–0. Fritz 5.32 – Comet B25, 2004.

5.d3 Bg4

6.Bg2 Qd6=+.

6.Bg2 Nbd7 7.0-0 e6 8.Nbd2 Qe7 9.a3 h5 10.c4 h4 11.Nh4 Rh4 12.gh4 Nh5 13.Nf3?? (better is 13.Bg7 Ng7 14.h3+–) 13...Bf3 14.ef3 Qh4 15.h3?? (better is 15.Bg7 Ng7 16.cd5 ed5 17.Re1 Ne6 18.Qa4+=) 15...Bb2–+ 16.Ra2 Bf6 17.Qe2 Nf4 18.Qe3 Nh3 19.Bh3 Qh3 20.f4 Qg4 21.Qg3 Qf5 22.Kg2 0-0-0 23.f3 Qd3 24.Rff2 Rh8 25.cd5 Qd5 26.Rfd2 Qf5 27.Qg4 Rh5 28.Qf5 Rf5 29.Rd3 Rf4 30.Rad2 Nb6 31.Rd1 Nd5 32.b5 Be7 33.a4 Ra4 34.b6 ab6 35.Rh1 Kd7 36.Rh7 Rf4 37.Rb3 Bc5 38.Rd3 Rf6 39.Kg3 Kc6 40.Rh8 b5 41.Ra8 b4 42.Ra2 b6 43.Rb2 Nf4 44.Rdd2 Rf5 45.Rdc2 Nh5 46.Kg4 Rd5 47.Rb4 f6 48.Rbc4 Ng7 49.Kh3 Nf5 50.Kg2 Ne3 51.Kg3 Nc4 52.Rc4 e5 53.Kg4 Rd4 54.Rd4 Bd4 55.f4 b5 56.fe5 Be5 (56...Be5 57.Kf3 f5–+) 0–1. linakip – zvonek, kurnik, 2012.

6.Bg2 Bf3 7.ef3 d4 8.Nd2 e5 9.Nc4 Nc6 10.b5 Nb4 11.a3 Nbd5 12.Ne5 0-0 13.Nc4 (worse is 13.Bd4 Nf4 14.c3 Ng2 15.Kf1 Nh4 16.gh4 Nd5+=) 13...a6 14.ba6 (14.Bd4 Nf4 15.gf4 Qd4 16.ba6 Rae8 17.Ne3 Nd5–+ (worse is 17...ba6 18.0-0+=)) 14...Ra6 15.Qc1 Re6 16.Kf1 b5 17.Bh3 Re7 18.Nd2 Qd6 19.Ne4 Ne4 20.fe4 Nf6 21.Kg2 Qc6 22.c3 dc3 23.Qc3 Qc3 24.Bc3 c5 25.Rhe1 Rfe8 26.Rab1 c4 27.Bf6 Bf6 28.dc4 bc4 29.Rb4 c3 30.Rc4 c2 31.Rc2 Ra7 32.Ra2 Bc3 33.Ree2 f5 34.e5 Re5 35.f4 Re2 36.Re2 Ra3 37.Kf2 Bd4 38.Ke1 Kf7 39.Bg2 Ra1 40.Kd2 Ra2 41.Kd3 Re2 42.Ke2 Bf6 43.h3 g5 44.fg5 Bg5 45.Bf3 f4 46.g4 Kf6 47.Kd3 Bh6 48.Ke4 Bg5 49.Kd5 h5 50.Ke4 hg4 51.hg4 1–0. linakip – radbet2330, kurnik, 2011.

6.h3 Bf3-/+ 7.ef3 Qd6 8.a3 Nbd7 9.Nc3 0-0-0 10.Be2 e5 11.Nb5 Qb6 12.Nc3 h5 13.Bf1 h4 14.Bg2 hg3 15.fg3 a5 16.h4 ab4 17.ab4 Qb4 18.Qb1 Qc5 19.Ne2 Rhe8 20.Bc3 Bh6 21.Bb4 Qe3= 22.Ra3 Qb6 23.Bh3 Kb8 24.Qa2 Qb4 25.c3 Qa3 26.Qa3 Be3 27.Bd7 Rd7 28.Qb4 d4 29.cd4 ed4 30.Kf1 Nd5 31.Qb2 Rd6 32.Kg2 Nf6 33.Ra1 Rb6 34.Qc2 Rc6 35.Qb3 Rce6 36.Qc4 Rd8 37.Qc5 b6 38.Qa3 Kc8 39.Qb4 c5 40.Qb5 Bd2 41.Ng1 Ba5 42.Nh3 Nd5 43.Ng5 Re7 44.Qc6 Kb8 45.Kh2 Rb7 46.Ne4+= Rc7 47.Qb5 Bc3 48.Rb1 Kc8 49.Rb3 Ba5 50.Ng5 Nb4 51.Qc4 Rdd7 52.Kh1 Re7 53.Ne4 Kb8 54.Kg2 Re5 55.Nd6 Re2 56.Kh3 Rce7 57.Qb5 Ra7 58.Ne4+/- Kc7 59.Qe8 f5 60.Qe7 Kb8 61.Qd8 Kb7 62.Nd6 Kc6 63.Qf6 Rd7 64.Nf5+– Kc7 65.Qg6 c4 66.dc4 d3= 67.c5 bc5 68.Rb4 (68.Rb4 cb4 69.Qa6=). Crafty 19.01 – EXchess 3.11, 2005.

5.Bg2 0-0

(--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5).

6.0-0 a5 7.a3 c6 8.d3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5 6.0-0 c6 7.d3 a5 8.a3).

6.d3 c6 7.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5 6.0-0 c6 7.d3).

5.Bg2 a5

6.a3!?

6.b5 0-0 7.Na3 Ne8 8.Bg7 Kg7 9.Qc1 f6 10.0-0 Nd6 11.d3 e5 12.c4 dc4 13.dc4 Bd7 14.Rb1 c5 15.Qd2 Qb6 16.Rfd1 Nf7 17.Qc3 Bf5 18.Rb2 Rd8 19.Rbd2 Rd2 20.Nd2 Nd7 21.Nc2 Be6 22.Ne3 Nd6 23.Qd3 Rd8 24.Ne4 Ne4 25.Qe4 Rb8 26.Qd3 Rd8 27.Nd5+– Qa7 28.Nc7 Qb6 29.Ne6 Qe6 30.Bb7 Kf8 31.Qd2 Ke7 32.Bc6 a4 33.Kg2 a3 34.Qa5 f5 35.Qc7 f4 36.b6 fg3 37.hg3 e4 38.b7 (38...g5 39.Bd7 Rd7 40.Qc5 Kf7 41.Rd7 Kg6 42.Qd6 Qd6 43.Rd6 Kf5 44.b8Q Ke5 45.c5 Kf5 46.Qc8 Ke5 47.Qe6#) 1–0. Bendig,Frank – Korchut,Adam, corr ICCF TT 6/02/1, 2002.

6.b5 a4 7.c4 dc4 8.Na3 c6 9.bc6 Nc6 10.Nc4 0-0 11.0-0 Be6 12.Nce5 Nb4 13.Ba3 (13.Qb1=) 13...Qa5 (13...Na2 14.Qb1 Qd5 15.Nd3=+) 14.Bb4 (14.Qb1!? Nc6 15.Nc6 bc6 16.Nd4+=) 14...Qb4= 15.Qb1 Qa3 16.Rc1 Rac8 17.Nd4 (17.Rc8 Bc8 18.d4 Nd5=) 17...Ba2 (better is 17...Rc1!? 18.Qc1 Qc1 19.Rc1 Ba2=+) 18.Rc8+= Rc8 19.Ra2 Rc1 20.Bf1 Rb1 21.Ra3 Ne4? (21...b5 22.Ndf3 Ne4+=) 22.Nef3?? (22.Ra4!? Be5 23.Nf3 f5+–) 22...b5 (22...Bd4 23.Ra4 (< 23.Nd4 Nd2 24.Ra4 Nf1-/+) 23...Bf2 24.Kg2+/-) 23.e3 (23.Nb5 Rb5 24.Ra4 Ng5 25.Ra8 Bf8 26.Ng5 Rg5+/-) 23...Nd6 24.Kg2 e5 25.Nb5! Nb5 26.Ra4 Nc7 27.Rc4 Rb7+/- 28.d4 ed4 29.ed4 Bf6 30.Bd3 Ne6 31.d5 Rd7 ½–½. Nabbing – Kjellquist, Karlstad, 1992.

6.b5 c5 7.0-0 Nbd7 8.d3 0-0 9.c4 e6 10.Nbd2 b6 11.Ne5 Ne5 12.Be5 Bb7 13.Rc1 Qd7 14.d4 dc4 15.Bb7 Qb7 16.dc5 bc5 17.Qa4 Rfd8 18.Nc4 Nd5 19.Rfd1 f6 20.Ba1 Rd7 21.e4 Nb6 22.Nb6 Rd1 23.Rd1 Qb6 24.Rd7 Rb8 25.Qc4 a4 26.Bb2 h5 27.Kg2 Kh8 28.Qa4 Qb5 29.Qa7 (29.Qa7 Qd7 30.Qd7 (30.Qb8?! Kh7=) 30...Rb2 31.Qe6+–) 1–0. Rosenboom,Manfred (1875) – Plumhoff,Bernd (2060), IECG, 1998.

6.b5 c5 7.a4 Nbd7 8.0-0 0-0 9.d3 b6 10.c4 e6 11.Ne5 Ne5 12.Be5 Bb7 13.d4 Rc8 14.dc5 Rc5 15.Nd2 Ne4 16.Bg7 Kg7 17.Rc1 Qc7 18.Be4 de4 19.Nb3 Rc4 20.Qd4 Rd4 21.Rc7 Rb4 22.Rb7 Rb3 23.Rd1 Rb4 24.Rd6 Kf6 25.Rdb6 Ra4 26.Ra6 h5 27.b6 ½–½. Skembris,Spyridon – Grivas,Efstratios, Greece, 1993.

6.b5 c6 7.a4 cb5 8.ab5 Qb6 9.Bd4 Qb5 10.Nc3 Qd7 11.Qb1 Nc6 12.Ne5 Qf5 13.Nc6 bc6 14.Qb6 Nd7 15.Qc6 Bd4 16.e3 Bc3 17.Qa8 Bd2 18.Kd2 Qf2 19.Kd1 0-0 20.Qd5 Bb7 21.Qb7 Ne5 22.Qd5 Ng4 23.Qd2 Qf6 24.Ra5 Rb8 25.Rf1 Rb1 26.Ke2 Rf1 27.Bf1 Qf2 28.Kd3 Qf1 29.Kc3 Qf3 30.Kb2 Ne3 31.Qd8 Kg7 32.Qd4 e5 33.Qe5 Kg8 34.Rc5 f6 35.Qe6 Kg7 36.Qd7 Kh6 37.Qh3 Kg7 38.Rc7 Kf8 39.Qc8 1–0. Santasiere – Seidman, Hamilton, 1941.

5.Bg2 Na6

6.a3 c5 7.b5 Nc7 8.a4 0-0 9.0-0 b6 10.Re1 a6 11.Na3 Bb7 12.Ne5 ab5 13.ab5 Nd7 14.Nd7? (better is 14.Nec4=) 14...Bb2–+ (14...Qd7?! 15.Bg7 Kg7 16.c4=) 15.Nf8 Ba1 (15...Qf8 16.Ra2 Ba3 17.Qa1–+) 16.Qa1-/+ 0–1. geebs (2190) – aclarke (2690), net–chess.com, 2004.

6.a3 c5 7.b5 Nc7 8.a4 0-0 9.0-0 Nd7 10.Bg7 Kg7 11.c3 e5 12.Ne1 a6 13.ba6 Ra6 14.d4 b6 15.Nd2 f5 16.e3 Bb7 17.f4 e4 18.Nc2 Qa8 19.Qb1 Bc6 20.c4 Ba4 21.Qb2 Kg8 22.Rfc1 Bc2 23.Ra6 Na6 24.Rc2 Nb4 25.Rc3 Qa4 26.Bf1 Ra8 27.cd5 Nd3 28.Bd3= ed3 29.Rc1 Qa2 30.Rb1 Qd5 31.dc5 Ra2–+ 32.Qc3 Rc2 33.Qb4 bc5 34.Qa5 Kg7 35.Qa1 Kh6 (35...Kh6 36.Rb2 Ne5 37.fe5 Qe5–+) 0–1. Alber,Horst (2275) – Schulze,Ulrich (2310), Karlsruhe tt, 1988.

6.a3 c5 7.b5 Nc7 8.a4 0-0 9.d3 b6 10.Nbd2 d4 11.c3 dc3 12.Bc3 a6 13.ba6 Ra6 14.0-0 Bb7 15.Nc4 Ncd5 16.Bb2 Nb4 17.Qb3 Qa8 18.Ne1 Bg2 19.Ng2 Nfd5 20.Bg7 Kg7 21.Rfc1 Nc6 22.Nge3 Nd4 23.Qb2 f6 (23...Ra4? 24.Ra4 Qa4 25.Nd5+–) 24.Nd5 Qd5 25.Re1 Rb8 26.Qb1 Qd7 27.Qd1 b5 28.e3 bc4 29.dc4 e5 30.f4 ef4 31.ed4 fg3 32.dc5 gh2 33.Kh1 Qc7 34.Ra2 Rd8 35.Qe2 Rd7 36.Qe8 Ra7 37.Qe3 Qc6 38.Kh2 Ra5 39.Rd2 Qc7 40.Rd6 Rf7 41.Qd4 Rc5 42.Rc1 Rh5 43.Kg1 Rg5 44.Kf2 Qc8 45.Rd5 Rg4 46.Qd1 Re7 47.Rc3 Rge4 48.Kf1 Qe6 (48...Qe6 49.Kg2 Re2 50.Kg3 h5–+; worse is 48...Rc4 49.Rc4 Qc4 50.Kg1–+) 0–1. Poleschi,Ricardo D – Paulson,Mike, SIMUL, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 Na6)

6.a3 c5 7.b5 Nc7 8.a4 b6 9.d3 a6 10.Na3 ab5 11.ab5 0-0 12.0-0 Qd7 13.c4 Bb7 14.Qc2 Rfd8 15.Rfd1 Qe6 16.d4 dc4 17.Ng5 Qc8 18.Bb7 (worse is 18.Nc4 Ra1 19.Ba1 Bg2 20.Kg2 Nb5 21.dc5 Rd1 22.Qd1 bc5-/+; worse is 18.Qc4 Bd5 19.Bd5 Rd5+=) 18...Qb7 19.dc5 bc5 20.Qc4 (20.Qc4 Ncd5 21.Rab1=) 1–0. Poleschi,Ricardo D (2280) – Ronal,Jose, IECC Team FBIM email, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 Na6)

6.a3 c5 7.c4 dc4 (7...0-0 8.b5 Nc7 9.a4+=) 8.b5 (8.Qa4 Bd7 9.b5 Nc7+=) 8...Nc7+= 9.a4 0-0 (9...Ncd5 10.Ne5+=) 10.Na3 a6 (10...c3 11.Bc3 Ncd5 12.Be5=) 11.ba6 Ra6 (11...c3 12.Bc3 Ra6 13.0-0=) 12.Nc4= Be6 13.Qc2 Ncd5 14.0-0 Nb4 15.Qc1 Qa8 (15...Bd5 16.Ne3 Qb6 17.Nd5 Nfd5 18.Bg7 Kg7 19.Qc4=) 16.a5 Bc4 (16...Qe8!?=) 17.Qc4+= Ra5 (17...Nd7 18.Bg7 Kg7 19.Nd4+/-) 18.Ne5+/- Ra1 19.Ra1 Qc8 20.Ra7 Ne8 21.d4 (21.Bb7 Nd6 22.Bc8 Nc4 23.Nc4 Bb2 24.Nb2 Rc8 25.Re7 Nd5+/-) 21...Be5+= 22.de5 Nc6 23.Ra1 Ng7 24.Qc5 Ne6 25.Qc4 Ncd4 26.Qc8 Ne2 (26...Rc8 27.e3 Nc6 28.Rc1+=) 27.Kf1 Rc8 28.Ba3 (worse is 28.Ke2 Rc2 29.Ke3 Rb2 30.Ra8 Kg7=) 28...N2d4 29.Be7 b5 30.Bd5 Kg7 31.Ra7 Rc7 (31...g5!?+/-) 32.Bf6+– Kh6 33.Rc7 Nc7 34.Bf7 b4 35.Be7 (35.Ke1 b3 36.Kd2 b2+–) 35...Kg7? (better is 35...b3 36.Ba3 Kg5+/-) 36.Bc4+– b3 (36...Nc6 37.Bd6 Ne8 38.Bc5+–) 37.Ba3 g5 (37...Nce6 38.Bb2+–) 38.Bb2 Nf3 (38...Nce6 39.Ke1 Kf8 40.Kd2+–) 39.Ke2 g4 (39...Nh2 40.e6 Kf8 41.Ba3 Kg7 42.e7+–) 40.h4 Kg6 (40...Kf8 41.Bb3 h5 42.Ke3+–) 41.Bb3 Kf5 42.Bc2 Ke6 43.Bh7 Ne5 44.Bg8 Kf5 (44...Nf7 45.Ke3+–) 45.h5 Ne8 (45...Nd7 46.h6 Nf6 47.h7 Nh7 48.Bh7 Kg5 49.Ke3+–) 46.h6 (better is 46.Bh7!? Ke6 47.h6 Nf6 48.Bg8 Nf7 (48...Ng8?? 49.h7 Nf6 50.h8Q+–) 49.Bf7 Kf7 50.Bf6 Kf6+–) 46...Nf6 (46...Ng6+–) 47.Be5 (47.Be5 Ke5 48.Kd3+–) 1–0. Mkrtchian,Lilit (2450) – Zaksaite,Salomeja (2170), Tromso NOR, 2014. (=1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.b4 Bg7 5.Bb2 Na6)

5.Bg2 c5

6.bc5 Qa5 7.0-0 Qc5 8.d3 0-0 9.Nbd2 Nc6 10.c4 dc4 11.Nc4 Qh5 12.Rb1 b5 13.Nce5 Bb7 14.g4 Ng4 15.Ng4 Qg4 16.Bg7 Kg7 17.Rb5 Rab8 18.Qa1 Kg8 19.Rfb1 Ba8 20.h3 Qa4 21.Rb8 Nb8 ½–½. Dussol,Pierre (2215) – Duche,Jean (2080), FRA–ch, 1981.

6.bc5 Qa5 7.0-0 Qc5 8.d4 Qb6 9.Ba3 Nc6 10.Nc3 0-0 11.Ne5 Re8 12.Rb1 Qd4 13.Nc6 Qd1 14.Ne7 (worse is 14.Nd1 bc6 15.c4 Be6-/+ (15...dc4?! 16.Bc6 Bh3 17.Be8 Ne8 18.Re1=)) 14...Kh8?? (better is 14...Re7 15.Rfd1 Re8+/-) 15.Rfd1+– (worse is 15.Rbd1 Bf8 16.Bb2 Be7 17.Nd5 Kg7+–) 15...Ne4 (15...Bf8 16.Bb2 Be7 17.Nd5 Kg7+–) 16.Ncd5 f5 (16...Nc3 17.Nc3 Bc3 18.Nd5+–) 17.Be4 (better is 17.Nc7!? Nc3 18.Ne8 Nb1+–) 17...fe4 18.Nc7 Bh3 19.Na8 Ra8 20.Bb2 Re8 21.Bg7 Kg7 22.Rb7 Kh6 23.c4 Bg4 24.Kf1 Rf8 25.c5 e3 26.f3 Bh3 27.Ke1 Rf6 28.Rd6 Rf8 29.c6 Re8 30.g4 a5 31.c7 (31.c7 Bg4 32.fg4+–) 1–0. grajaro (1930) – andusbravo, kurnik, 2012.

5.Bg2 c6

6.0-0 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5 6.0-0 c6).

6.0-0 Bd7 7.d3 b5 8.a4+– ba4 9.c4 (9.Ra4?! c5 10.c4 Ba4 11.Qa4 Qd7+=) 9...Qc8 (9...a5!? 10.Qa4 Na6 11.ba5 0-0+–) 10.Qa4+– c5? (better 10...0-0!?+–) 11.b5 0-0 12.Qb3 e6 (12...Qb7 13.Nc3 Nc6 14.Nd5 Nd5 15.cd5+–) 13.Nc3 Ne8 (13...Qd8 14.Ne5+–) 14.cd5 Nc7 (14...Nd6 15.Nd2 e5 16.Nc4 Nc4 17.dc4+– (worse 17.Qc4 Bh3+–)) 15.Ng5 (better 15.d6 Ne8 16.Ng5 Nc6 17.bc6 Bc6 18.Bc6 Qc6+–) 15...ed5 (15...Nba6 16.d6 Rb8 17.dc7 Nc7 18.Ra5+– (18.Ra7?! Nb5 19.Rd7 Qd7+–)) 16.Nd5 Be6 (16...Nd5 17.Bd5 c4 18.dc4 h6 19.Nf7 Rf7 20.Bf7 Kf7 21.Qf3 Kg8 22.Bg7 Bc6 23.bc6 Kg7+–) 17.Ne7 Kh8 18.Bg7 Kg7 19.Qc3 (19.Qc3 Kh6 20.Nc8 Rc8 21.Ba8+–) 1–0. marekt – jhubbard, net–chess.com, 2019.

6.0-0 Bg4 7.d3 Nbd7 8.Nbd2 0-0 9.Re1 e5 (9...a5!?+=) 10.Ne5+= Nh5 (10...Ne5 11.Be5 Qe7 12.Bc3+=) 11.Ng4 f5?? (better is 11...Bb2 12.Rb1 Bc3+/-) 12.Bg7+– Ng7 (12...Kg7 13.Ne3+–) 13.Ne3 Qg5 14.Nf3 Qh6 15.c4 d4 (15...f4 16.gf4 dc4 17.dc4+–) 16.Nd4 f4 17.Nf1 fg3 18.Ng3 Ne5 19.Qc1 Qh4 20.Nf3 Rae8 (20...Nf3 21.Bf3 Ne6+–) 21.Nh4 Ng4 22.Nf3 Re6 23.h3 (better is 23.Bh3!? h5+–) 23...Nf6 24.Nd4 Re5 25.Qb2 h5 26.Nc6 bc6 27.Qe5 h4 28.Ne4 Ne4 29.Be4 Re8 30.Qd6 g5 1–0. NikMed – Tradesmen, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 c6 6.0-0 Bg4)

6.a3 a5 7.0-0 0-0 8.d3 Nbd7 9.Nbd2 Qc7 10.c4 e5 11.e4 (11.cd5 cd5 12.Qa4 Re8=) 11...de4 (11...d4 12.Qe2=) 12.de4= b6 13.Qc2 Re8 14.Bc3 Bb7 15.Ne1 Nf8 (15...ab4 16.ab4 Ra1 17.Ba1=) 16.Nd3 N6d7 17.f4 Ne6 18.Qb2 ef4 19.Bg7 Ng7 20.gf4 Qd6 21.Qc3 Rad8 22.Rad1 ab4 23.ab4 c5 24.e5 Qc7 25.Bd5 cb4 26.Qb4 Nf5 27.Rfe1 Nd4 28.Qb2 Ne6 29.Ne4 Re7 30.Nd6 Bd5 31.cd5 Nf4 32.Nf4 Ne5 33.Re5 Qd6? (better 33...Re5!? 34.Qe5 Qd6+/-) 34.Re7+- Qe7 35.Qd4 (35.Qb6 Qg5 36.Ng2 Rd5 37.Rd5 Qd5+/-) 35...Rd6+/- 36.Rd2 Qg5 37.Ng2 b5 38.Rc2 Qd8 39.Rc5 b4 (39...Rb6 40.Qb4 Qd7 41.Ne3+-) 40.Qc4 (40.Rb5 Qg5+-) 40...Qf6 (better 40...Qb6!? 41.Kh1 Rf6+/-) 41.Qb4+- Qa1 42.Qe1 (better 42.Ne1!? Qd1 43.Qe4+-) 42...Qd4+/- 43.Qf2 Qd1 44.Qe1 Qd4 45.Qe3 Qd1 46.Ne1 Qg4? (better 46...Rd5!? 47.Rd5 Qd5+/-) 47.Kh1+- Rf6 48.Qg3?? (better 48.h3 Qf5 49.Kh2+-) 48...Qe4 (better 48...Qe2 49.Nf3 Rf3-+ (49...Qf3?! 50.Qf3 Rf3 51.Kg2-/+)) 49.Nf3 (49.Kg1 Qe2 50.Nf3 Rf3 51.Qf3 Qf3 52.Rc8 Kg7 53.Re8-+) 49...Rf3 (49...Qf3?! 50.Qf3 Rf3 51.Kg2-/+) 50.Qb8 Kg7 (50...Kg7 51.Qf8 Kf8 52.Rc8 Kg7 53.Rg8 Kg8 54.Kg1 Qe1 55.Kg2 Qf1) 0-1. Valenta,Vit jr (2195) - Yao,Lan (2320), 22nd Olomouc IM2, 2019.

6.Na3 a5 7.b5 cb5 8.Nb5 Qb6 9.Rb1 0-0 10.Bd4 Qd8 11.0-0 Nc6 12.Ba1 Bd7 13.Ne5 Rc8 14.a3 Be8 15.d3 e6 16.Qd2 Qe7 17.Rfc1 b6 18.c4 Ne5 19.Be5 Bb5 20.Rb5 dc4 21.dc4 Qa3 22.Bd6 Rfd8 23.Rb6 Bf8 24.Bf8 Kf8 25.Qb2 Qb2 26.Rb2 Rc5 27.Rb5 Rdc8 28.Rc5 Rc5 29.Bb7 Ke7 30.Ba6 Ne4 ½–½. Azar,Jose Salomon – Giaccio,Alfredo Gustavo (2370), Buenos Aires GP I, 1992.

6.d3 0-0 7.Nbd2 Bg4 8.h3 (8.0-0 a5 9.ba5 Qa5=) 8...Bf5 (8...Bf3 9.Nf3 Qb6 10.Qd2=) 9.0-0 a5 10.a3 Na6 11.c4 (11.g4 Be6=) 11…ab4+=. gbsrao (2675) – gillesderais (2460), net–chess.com, 2009.

6.d3 Na6+=.

6.d3 Qb6 7.a3 Ne4 8.de4 Bb2 9.Ra2 Bg7 10.ed5 cd5 11.0-0 (11.Qd5?? Be6 12.Qd3 Ba2–+) 11...0-0 12.Nbd2 (12.Qd5?? Be6 13.Qg5 Ba2 14.Qe7 Nc6–+) 12...Nc6 13.c4 dc4 14.Nc4 Qb5 15.Ne3 Be6 16.Rd2 Rfd8 17.Qc2 Rd2 18.Qd2 a5 19.Nc2 (19.ba5!? Ra5 20.Nc2+=) 19...Rd8-/+ 20.Qg5 Qe2 21.Ne3 ab4 22.ab4 b6 23.Ng4 Rd1 24.Qf4 Bd5 25.Ne3 Rf1 26.Nf1 e5 27.Qe3 Qe3 28.Ne3 Ba2 29.Nc2 Nd4 30.Nfd4 ed4 31.Be4 Bc4 32.Ne1 Bf8 33.Nd3 f5 34.Ne5 Be6 35.Bc6 Bb4 36.Nd3 Bc3 37.Kf1 Bc4 38.Ke2 b5 39.Bd7 b4 0–1. Wall,Tim (2220) – Ady,Jonathan James (2290), Lewisham op, 1984.

6.d3 Qb6 7.a3 Ng4 8.d4 a5+=.

6.d3 Qb6 7.c3 0-0 (7...c5 8.Qb3=) 8.0-0= a5 9.Qb3 (9.a3 ab4 10.cb4 Nbd7=) 9...Nbd7 (9...ab4 10.a3+=) 10.Nbd2= e5 (10...a4 11.Qc2=) 11.e4 (11.a3 e4 12.de4 de4=) 11...Qa6 (11...ab4 12.cb4 Re8 13.a4+=) 12.Rfe1 ab4 (12...Re8 13.ed5 cd5 14.c4=) 13.cb4 d4 14.Nc4 Ne8 15.a4 Qa7 16.b5 Qb8 (16...h6 17.bc6 bc6 18.Qc2=) 17.Ba3 (17.bc6 bc6 18.Qb8 Rb8+/-) 17...c5= 18.b6 (18.a5 Nd6=) 18...Nd6 19.Nfd2 Re8 (19...Ra6=) 20.f4 (20.a5!?=) 20...Nc4 21.Nc4 ef4 22.gf4 Bh6 23.f5 Bf4 24.h3 Bd6 25.Rf1 g5 26.Qd1 f6 27.Qh5 Rf8 28.a5+/- Rf7?? 29.e5!+– (29.e5 Ne5 30.Ne5+–; 29.Nd6?! Qd6 30.Bc1 Ne5=) 1–0. Vozovic,O (2355) – Marasli,Tutku Kahraman, Universities, Istanbul TUR, 2006.

6.d3 Qd6 7.c4 (better is 7.a3!?=) 7...Qb4 (7...dc4 8.a3 cd3 9.Qd3 Qd3 10.ed3-/+) 8.Bc3 (8.Qd2 Qb6 9.Nc3 dc4 10.dc4 0-0-/+) 8...Qd6 9.0-0 (9.Be5 Qd7-/+) 9...dc4 (9...0-0 10.Nbd2-/+) 10.Be5 (10.dc4 0-0-/+) 10...Qd8 (10...Qe6 11.Bc3–+) 11.Na3? (11.dc4 Nbd7 12.Bd4 Qc7-/+) 11...Qa5?? (better is 11...cd3 12.Qd3 Qd3 13.ed3 Nbd7–+) 12.Nc4+= Qc5 (12...Qd8 13.Rc1+=) 13.Rc1 e6?? (13...0-0 14.Qb3+=) 14.Bd6 (better is 14.Nd6 Qd6 15.Bd6+–) 14...Qh5+= 15.Nfe5 (15.Qb3 Nbd7+=) 15...Nbd7 (15...Ng4 16.Ng4 Qg4 17.Rb1+=) 16.Bf3 (16.Nc6 Bh6 (16...bc6? 17.Bc6 Ng4 18.h4+–) 17.e3 Qd1 18.Rfd1 Nd5+/-) 16...Qh6 (better is 16...Qh3=) 17.Nc6!+– bc6 (better is 17...Bf8!?+–) 18.Bc6 Ng4 19.h4 g5 (19...Bb7 20.Bd7 (worse is 20.Bb7 Rd8+–) 20...Kd7 21.Qa4 Bc6 22.Nb6 Kd6 23.Qc6 Ke7 24.Qb7 Kf8 25.Qa8 Ke7 26.Qb7 Kf6 27.Nd7 Ke7 28.Ne5 Kf6 29.Ng4 Kf5 30.Qe4) 20.Qd2 (20.Ba8 f5 21.Ba3 Bf8+–) 20...Bd4? (20...gh4 21.Bf4 Qh5 22.Nd6 Ke7+–) 21.Ba8 Qf6 22.Bb4 gh4 23.Nd6 Kd8 24.Rc8 Ke7 25.Ne4 Bc5 26.Bc5 Nc5 27.Rc7 Kd8 28.Nf6 Kc7 29.Qf4 e5 30.Qg4 Ra8 31.Nd5 Kc6 32.Ne7 Kd6 33.Nf5 (33.Nf5 Kc6 34.Rc1+–) 1–0. gbsrao (2110) – chessleon (2040), net–chess.com, 2008.

6.d3 Nbd7 7.Nbd2 0-0 8.0-0 Qc7 9.c4 e6 10.a4 a6 11.Qb3 Ne8 12.Bg7+/- Ng7 13.d4 Re8 14.Rfc1 Qd8 15.e3 Qe7 16.Rc2 Nf5 17.Rca2 Nd6 18.c5 Nf5 19.Qb2 e5 20.e4 de4 21.Ne4+/- ed4 22.Nd4 Nd4 23.Qd4 Qe5 24.Rd2 Kg7 25.Nd6 Re7 26.Bh3 Qd4 27.Rd4 Ne5 28.Bg2 Bg4 29.f4 Nf3+/- 30.Bf3 Bf3 31.Kf2 Bd5 32.Re1 Re1 33.Ke1 Rb8 34.a5 Kf6 35.Kf2 Ke6 36.f5 Ke5 37.Rh4 h5 38.Ke3 Kf6 39.fg6 fg6 40.Rf4 Ke7 41.h4 Kd7 42.Kd4 Ke6+/- 43.Rf7 Bg2 44.Rg7 Kf6 45.Rf7 Ke6 46.Rg7 Kf6 47.Rb7 Rb7 48.Nb7 Kf5 49.Nd6 Kg4 50.Ne4 Kf5 51.Nf2 Bf1 52.Nd1 Be2 53.Ne3 Ke6 54.Ke4 Kf6 55.Nc2 Bf1 56.Kf4 Bc4 57.Ne3 Be2 58.g4 hg4 59.Ng4 Ke6 60.Ne3 Bd3 61.Kg5 Ke5? 62.Ng4 Kd4 63.Kf6 Kc3 64.Ne5 Be4 65.Ng6 Bf3 66.Ne5 Be4 67.Nc6! Bc6 68.h5 1–0. Srienz,C (2170) – Can,E (2010), Open, Antalya TUR, 2002.

6.d4 0-0 7.0-0+=.

6.d4 0-0+= 7.Nbd2 Bg4 (7...a5 8.ba5 Qa5 9.0-0+=) 8.0-0 Bf3 9.Nf3 Nbd7 10.Re1 Re8 11.c4 (11.Qd3 Qb6=) 11...dc4+= 12.Rc1 (12.Qc2 b5+=) 12...Nb6 (12...a5 13.ba5 Qa5 14.a3-/+) 13.a4 (13.Ne5 a5=) 13...Nbd5 (better is 13...a5!? 14.ba5 Ra5-/+) 14.e4 (14.Rc4 a5 15.b5 Qb6=) 14...Nb4 15.e5 (15.Rc4 a5=) 15...Nfd5-/+ 16.Ba3? (better is 16.Rc4 Na6 17.e6+=) 16...Nd3–+ 17.Rc4 Ne1 18.Qe1 Nb6 (18...Qd7 19.a5–+) 19.Rc1 (19.Rb4 Qd5–+) 19...Na4 20.Qb4 (20.Rb1 Nb6–+) 20...Nb6 21.Nd2 Qd7 22.Ne4 Nd5 23.Qb3 b6 24.Nc3 Nc3 25.Rc3? Rac8 26.Qc2 Qd4 27.Rc6 Rc6 28.Qc6 Qd8 29.e6 fe6 30.Qe6 Kh8 31.Bc6 Rg8 32.Be7 Qc7 33.h3 Qe5 34.Qd7 Bf8 35.Bf8 Rf8 (35...Rf8 36.f4 Qf5–+) 0–1. gbsrao (2100) – davidgheavy (2170), net–chess.com, 2009.

6.d4 Na6 7.c3 0-0 8.Nbd2 Bg4 9.0-0 Ne4 (9...Qd6 10.h3 Bf3 11.Nf3=) 10.h3 (10.Ne4 de4 11.Ne5 Be5 12.de5 Qd1 13.Rfd1 Rad8+=) 10...Bd7 (10...Bf3 11.Nf3 f5 12.Qd3=) 11.Qc2 (11.Ne4 de4 12.Ng5 Qc8+=) 11...f5 (11...Bf5 12.Ne4 Be4 13.Qc1+=) 12.Nh2 (12.Bc1!?=) 12...Qc8 13.Rfe1 f4 (13...b6 14.Nhf3=) 14.g4 (14.Ne4 de4 15.g4 e5+=) 14...e5 (better is 14...Nd2 15.Qd2 Qc7=) 15.f3 (better is 15.Ne4 de4 16.de5+=) 15...Ng3-/+ 16.a3 ed4 (16...Qc7 17.c4-/+) 17.cd4 Nc7 18.Nhf1 Nb5 (18...Nf1 19.Nf1 Ne6 20.Qd3-/+) 19.Nb3 (19.Ng3 fg3 20.Nb3 Qe8=) 19...Qe8 (19...Nf1 20.Rf1 Nd6 21.Bc1-/+) 20.a4 (20.e4 de4 21.Ng3 fg3 22.Re4 Qf7+=) 20...Nd6 (20...Nf1 21.Kf1 Nd6 22.Qc3-/+) 21.Nc5 Bc8 22.e4+= de4 23.fe4 Nf1 24.Rf1 b6 25.Nb3 Ba6+= 26.Rf2 Nc4= 27.e5 Rd8 28.b5 cb5 29.ab5 Qb5 30.Bf1+= Rd7?? 31.Ra6!+– Rc8 32.Ra2 Qd5 33.Rf4 Rdc7 34.Qg2 Qd7 35.Ba1 Ne3 36.Qe4 Nf1 37.Rf1 (37.Kf1?! Qb5 38.Kg2 Qb3+=) 1–0. ANJI – skaranz, internet, 2010.

6.0-0 a5

7.a3 0-0 8.d3 ab4 9.ab4 Ra1 10.Ba1 Na6 11.c3 Re8 12.Nbd2 e5 13.e4 Nc7 14.h3 b6 15.Re1 Ba6 16.Bf1 de4 17.de4 Bf1 18.Kf1 b5 19.Qb1 Ne6 20.c4 Nd4 21.c5 Nd7 22.Bd4 ed4 23.Qd3 Qa8 24.Nd4 Rd8 25.N2f3 Ne5 26.Qe2 Nf3 27.Nf3 Qa3 28.Rb1 Qc3 29.Kg1 Re8 30.Qa2 h6 31.e5 Re6 32.h4 Qd3 33.Re1 Qc3 34.Re4 Kh7 35.Qa7 f5 36.Rf4 Re8 37.Qd7 Ra8 38.h5 gh5 39.Rf5 Qb4 40.Rh5 Qc5 41.Ng5 1–0. Spiridonov – Scheeren, Plovdiv 1983.

7.ba5 0-0 8.Bc3 c5=.

7.ba5 0-0 8.d3 Qa5 9.Nbd2 Nbd7 10.c4 Qa4 11.Qb1 Re8 12.cd5 Nd5 13.Bg7 Kg7 14.Rc1 Qb4 15.Nb3 Kg8 16.Rc4 Qd6 17.Qc1 N5b6 18.Rh4 Qf6 19.a4 Nd5 20.a5 Qc3 21.Qc3 Nc3 22.Rc4 Nb5 23.Nfd2 Nb8 24.Rcc1 Nd6 25.d4 Na6 26.e4 Be6 27.Nc5 Nc5 28.Rc5 Bd7 29.Nb3 Red8 30.e5 Ne8 31.d5 cd5 32.Bd5 Rab8 33.Rc3 Bb5 34.Be4 f5 35.Bg2 Bc6 36.Bc6+– bc6 37.f4 Rdc8 38.a6 Rb6 39.Nd4 c5 40.a7 Ra8 41.Rc5 Rb7 42.Nc6 Kf7 43.Rd5 Rb6 44.Nd8 Kf8 45.Rd7 Ng7 46.Rc1 Ne8 47.Nc6 Ra6 48.Rb7 e6 49.Kf2 h6 50.Ke3 Ra4 51.Rd1 Ra6 52.Rd8 (52.Rd8 Rd8 53.Nd8 Ra3 54.Kd4+–) 1–0. Nikolac,Juraj (2485) – Lehmann,Heinz, Hoogovens–B Wijk aan Zee, 1976.

7.ba5 0-0 8.d3 Ra5 9.Nbd2 Bg4 10.h3 Bf3 11.Nf3 Nbd7 12.Qc1 Qa8 13.a3 Ra4 14.Ra2 Qa7 15.Qa1 Ra8 16.e4 Ne8 17.ed5 cd5 18.c4 dc4 19.dc4 Nc5 20.Ne5 f6 21.Ng4 Kh8 22.Re1 e5 23.Ne5 fe5 24.Re5 Nf6 25.Rc5 Qc5 26.Bf6 Qf8 27.Bg7 Qg7 28.Qg7 Kg7 29.Bb7 R8a7 30.Bd5 Ra3 31.Re2 Rc3 32.h4 Rc7 33.Kg2 h5 34.Re4 Rd7 35.Re6 Rd3 36.Be4 R3d6 37.Rd6 Rd6 38.c5 Rd4 39.Kf3 Rc4 40.c6 Kf6 41.Kf4 Rc5 42.Ke3 Rc1 43.Kd2 Rc4 44.Kd3 Rc1 45.Kd4 Rf1 46.Kd5 Ke7 47.f3 Rg1 48.Bg6 Rg3 49.Bh5 Rg1 50.f4 Rg2 51.Ke5 Rg3 52.Kd5 Rd3 53.Kc4 Rd2 54.Kc5 Kd8 55.Bf7 Kc7 56.f5 Rc2 57.Kd5 Rc6 58.Ke5 Kd7 59.f6 Rc5 60.Kf4 Rc1 61.h5 Kd6 ½–½. Mueller,R – Vadasz, Balatonbereny, 1995.

7.ba5 Qa5 8.d3 0-0 9.Nbd2 Qb6 10.Qc1 c5 11.a3 Nc6 12.Rb1 Qc7 13.e4 de4 14.de4 Rd8 15.Re1 Ra4 16.Bc3 Nd4 17.Nd4 cd4 18.Bb4 e5 19.Nf3 Ra6 20.Qd2 Rc6 21.Rb2 Ne8 22.Bf1 Nd6 23.Bd3 Nc4 24.Bc4 Rc4 25.Ba5 Qd6 26.Bd8 Qd8 27.Reb1 Qc7 28.Ne1 Bf8 29.Rb3 Bd6 30.Qd3 Qc5 31.c3 Be6 32.Rb5 Qa3 33.cd4 Qd3 34.Nd3 Rd4 35.Ne5 Re4 36.Nf3 Bc8 37.Rd1 Bf8 38.Ne5 Kg7 39.Nd7 Ba3 40.Rb3 Be7 41.Rc3 Bd7 42.Rd7 b6 43.Rc6 Re5 44.Rb6 Bc5 45.Rb2 h5 46.Kg2 Re7 47.Re7 Be7 48.Kf3 Bf6 49.Ra2 Bc3 50.Ke4 Kf8 51.Kd5 Kg8 52.Kd6 Kf8 53.h3 f5 54.Ke6 Bd4 55.Rd2 Bc3 56.Rd7 Bb2 57.Rc7 Bd4 58.f3 Bb2 59.Rc2 Ba1 60.Rg2 Kg7 61.g4 fg4 62.hg4 Kh6 63.Kf7 Be5 64.gh5 g5 65.Re2 Bc3 66.Rh2 Be1 67.Kf6 Bg3 68.Rh1 Bf2 69.Kf5 Bh4 70.Kg4 1–0. Smyslov – Kortschnoj, Moscow 1961.

7.ba5 Qa5 8.d3 Nbd7 9.Nbd2 0-0 10.c4 e6 11.Nb3 (11.Qc2 Qa4 12.Qa4 Ra4 13.Rfb1 b5 14.cb5 cb5 15.h3 Ba6= 0.06) 11...Qa4 12.Nfd2 (12.c5 Re8 (12...b5= 13.cb6 Nb6 14.Qc2 Nbd7 15.Rfc1 Bb7+/- 0.80) 13.Ne5 Bf8 14.Nd7 Nd7 15.Qd2 Qb5= –0.07; 12.Nbd2 b6 13.Ne5 Bb7 14.Qa4 Ra4 15.a3 Ne5+= –0.55) 12...b5 (12...b6 13.Qc2 Bb7 14.h3 h6 15.Rfc1 Rfe8+= –0.26) 13.c5 (13.cb5 cb5 14.Nd4 Bb7 15.Qa4 ba4= –0.03) 13...e5 (13...Rd8 14.Qc2 e5 15.h3 h6+= –0.51) 14.h3 (14.e4 de4 15.de4 Rd8= –0.19) 14...Re8 (14...Nh5 15.Nb1 Bb7+= –0.34) 15.e4 Qa7 (15...d4+= –0.34) 16.ed5 Nd5 17.Ne4 Re7 18.a3 f5 19.Nd6 Ba6 20.Re1 Rb8 (20...Nc5!? 21.Qc2 Nb3 22.Qb3 Kf8 23.Bd5 cd5=) 21.Rc1+= Qc7 22.f4 Kf8 23.Qd2+= b4 24.Bd5 ba3= 25.Ba3 cd5 26.Na5 e4 27.de4 de4 28.c6 Nb6 29.Ndb7 Bf6? 30.Bd6 Qc8 31.Bb8 Qb8 32.c7! Qa7 33.Qd8 Kg7 34.Nc6 Qb7 35.Ne7 Nc8 36.Qg8 Kh6 37.Qf8 Bg7 38.Ng8 Kh5 39.Qg7 Qb6 40.Kh1 (40.Kh1 Qg1 41.Kg1 Bd3 42.Qh7#) 1–0. Filipowicz,Andrzej – Witkowski,Stefan, Poland qv olm Warszawa, 1968.

7.ba5 Ra5 8.d3 Nbd7 9.Nbd2 Nb6 (9...Qb6 10.Nb3 Ra4 11.a3=) 10.Nb3 Ra8 11.Bd4 0-0 12.Nc5 (12.Qd2 Re8=) 12...Nfd7 (12...Nbd7 13.Nd7 Qd7 14.a4=) 13.Nd7 (13.Bg7 Kg7 14.Nd7 Nd7=) 13...Nd7 14.Bg7 Kg7 15.Qc1 (15.c4 dc4 16.dc4 e5=) 15...e6 (15...e5 16.c4=) 16.c4 (16.d4 Re8=) 16...Qf6 17.d4 b6 18.cd5 (18.Qe3 Ba6 19.Ne5 Ne5 20.de5 Qd8 21.cd5 ed5=) 18...cd5 (18...ed5 19.Qe3=) 19.Qc6 (19.Qc7 Qd8 20.Qd6 Ba6=) 19...Ra7= 20.Rfc1 (20.Qd6 Rd8=) 20...Ba6 21.e3 Bc4 22.Nd2 (22.a4 Rfa8=) 22...b5 (22...Ba2 23.Qd6 Rfa8 24.Rc7 Rc7 25.Qc7=) 23.a4 Rfa8 24.Nc4 (24.Rab1 Nb8 25.Qc5 Ra4 26.Nc4 Rc4 (worse is 26...bc4 27.Qc8+–) 27.Rc4 bc4+=) 24...bc4 25.Rcb1 Qd8 26.e4 Ra6 27.Qb7 R8a7 28.Qb2 (28.Qb4 Qa8-/+) 28...Nf6 (28...de4 29.Be4 Nf6 30.Bb7-/+) 29.ed5 ed5 (29...Nd5 30.Qc2+=) 30.Qc2 Qe8 Attacks the isolani on a4 (30...Qa5 31.h3+=) 31.Rb4= Re6 (31...Ra5 32.Bf3=) 32.Qd1 (32.Qc3 Ne4 33.Be4 Re4=) 32...Rae7 (32...Ne4 33.Be4 Re4 34.Rb5+=) 33.Rbb1= h5 (33...Qa8 34.a5=) 34.h4 (34.a5 Ne4 35.Qc1 h4=) 34...Re2 (34...Ne4 35.Qc2+=) 35.Bf3 Ng4 36.Bg4 hg4 37.a5? (better is 37.Kf1!?+=) 37...R7e3–+ 38.Qc1 (38.Qf1 Rg3! 39.fg3 Qe3 40.Kh1 Qe4 41.Kg1 Qd4 42.Kh1 Qe4 43.Kg1 Qe3 44.Kh1 Rf2 45.Qf2 Qf2–+) 38...Rg3! 39.fg3 Qe4 40.Qf1 Qd4 41.Kh1 Qe4 42.Kg1 Qe3 43.Kh1 Rf2 44.Qf2 Qf2 45.a6 (45.Rg1 Qa7–+) 45...Qg3 46.a7 Qf3 (46...Qh4!? 47.Kg2 Qh3 48.Kg1 Qe3 49.Kf1–+) 47.Kg1 Qe3 48.Kg2?? (better is 48.Kf1 Qd3 49.Kg1 Qd4 50.Kf1–+) 48...Qe2 49.Kg3 (49.Kh1 g3 50.Ra2 Qa2 51.Rb2 Qb2 52.Kg1 Qf2 53.Kh1 Qf1) 49...Qf3 50.Kh2 Qf2 51.Kh1 g3 (51...g3 52.Rb2 g2 53.Kh2 g1Q 54.Kh3 Qfg3) 0–1. Milchev,Nikolay (2395) – Lalev,Dimitar (2370), 64. TCh–BUL Men, 2015. (=1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.b4 Bg7 5.Bb2 c6 6.0-0 a5)

7.ba5 Ra5 8.d3 Bg4 9.Nbd2 Nbd7 10.c4 0-0 11.Qc2 Qa8 12.a4 Ne8 13.Rfb1 Bb2 14.Qb2 Nd6 15.cd5 cd5 16.Nd4 e5 17.Nb5 Nb5 18.ab5 Be6 19.Qc3 Ra4 20.Ra4 Qa4 21.b6 Qc6 22.Qc6 bc6 23.Nb3 Rb8 24.Na5 Rb6 25.Rb6 Nb6 26.Nc6 f6 27.f4 ef4 28.gf4 Kf8 29.Kf2 Ke8 30.Ke3 Kd7 31.Nb4 Kd6 32.Kd4 Bg4 33.e3 Be6 34.Bf3 g5 ½–½. Ricardi,Pablo – Sorin,Ariel, Zonal 2.5 FIDE, 2000.

7.a3 ab4

8.ab4 Ra1

9.Ba1 0-0 10.Na3 Qd6 11.Qb1 Bg4 12.c4 Nbd7 13.cd5 Nd5 14.Bg7 Kg7 15.Qb2 Qf6 16.d4 Ra8 17.b5 Ra4 18.Ne5 Ne5 19.de5 Qe6 20.bc6 bc6 21.Re1 Rb4 22.Qa1 ½–½. Bachler,Kevin L (2220) – Gonzalez,Bolivar Ribeiro (2135), WS/M/198 ICCF, 2009.

9.Ba1 Qb6 10.c3 0-0 11.d3 Re8 12.Nbd2 e5 13.e4 de4 14.de4+= Qc7 15.c4 Nfd7 16.Bc3 c5 17.b5 Nf8 18.Qa1 Nbd7 19.Bh3 Nb6 20.Bc8 Nc8 21.Rd1 f6 22.Nf1 Nd6 23.N3d2 Bh6 24.Qa7 Ne6 25.Kg2 Qd7 26.Nf3 Nd4 27.Qc5= Ne4 28.Qb4 Bf8 29.Qb2 Nc3 30.Qc3 Bc5 31.Ne3 Kg7 32.Nd5 Qg4 33.h3 Qf3 34.Qf3 Nf3 35.Kf3 Rc8 36.Ra1 Bd4 37.Ra4 Kf7 38.Ke2 Ke6 39.f3 f5 40.Kd3 Bc5 41.Ra2 h5 42.g4 ½–½. Soppe,Guillermo – Roselli Mailhe,Bernardo, Montevideo, 1994.

9.Ba1 Qb6 10.c3 0-0 11.d3 Re8 12.Nbd2 e5 13.e4 Bg4 14.h3 Bf3 15.Bf3 Rd8 16.Qc2 de4 17.de4 Qa6 18.Rd1 Bf8 19.Bb2 c5 20.bc5 Bc5 21.Nb3 Rd1 22.Qd1 Be7 23.Nd2 Nbd7 ½–½. Bricard,E (2455) – Geenen,M (2345), National I, Clermont–Ferrand FRA, 2003.

9.Ba1 Qb6 10.c3 0-0 11.d3 Bg4 12.Nbd2 Nbd7 13.Qa4 Ne8 14.c4 Nc7 15.Bg7 Kg7 16.Rb1 Ra8 17.Qc2 f6 18.b5 cb5+= 19.cd5 Nd5 20.Qb3 Bf3 21.Bf3 Nc7 22.Qb4 Qc5 23.Qc5 Nc5+= 24.Rc1 N5e6 25.e3 Ra2 26.Nb3 b6 27.Rc6 Rb2 28.Nc1 Ng5 29.Bg2 Ne8 30.h4 Nf7 31.d4 Rb1 32.Kh2 Nd8 33.Rc8= Nd6 34.Rd8 Rc1 35.Bd5 Rc8 36.Rd7 Kf8 37.e4 b4 38.e5 fe5 39.de5 Nc4 40.Be6? Ne5–+ 41.Rb7 Rc6 42.Bb3 Nf3 43.Kg2 Nd4 44.Rb8 Kg7 45.Rg8 Kf6 (45...Kf6 46.Bd5 Rc5–+) 0–1. Akesson,Ralf – Chekhov, Polanica Zdroj, 1981.

9.Ba1 Qb6 10.c3 Qa6 11.Bb2 Nfd7 12.d3 Nb6 13.Nbd2 Na4 14.Qc2 Nb2 15.Qb2 0-0 16.Nb3 Qb6 17.Qc2 Na6 18.Nbd2 e5 19.e4 de4 20.de4 c5 21.bc5 Qc5 22.Rb1 Qc6 23.Bf1 Nc5 24.Bb5 Qc7 25.Bc4 Kh8 26.Bd5 f5 27.c4 Bd7 28.Ra1 Bc6 29.Ra3 Ne4 30.Be4 fe4 31.Ne4 Qd7 32.Qe2 Qg4 33.Ned2 e4 34.Nd4 Qe2 35.Ne2 Rd8 36.Nf1 Bh6 37.Ne3 Kg7 38.Rb3 Kf7 39.Nd5 Ke6 40.Nd4 Ke5 41.Nc2 Ba4 42.Rb2 Bc1 43.Rb1 Bc2 44.Rc1 Bd3 45.Nb6 Rd6 46.c5 Rc6 47.Ra1 Kd4 48.Nd7 Rc7 49.Ra4 Kd5 50.Nf6 Ke5 51.Ng4 Ke6 52.Ra3 Rc5 0–1. Pyrich,George – MacLeod, corr, 1989.

9.Ba1 Na6

10.c3 0-0 11.d3 Ne8 12.Na3 Nd6 13.Ne1 e5 14.Qb1 Bg4 15.f3 Be6 16.Kh1 Nc7 17.f4 ef4 18.gf4 Nf5 19.Nec2 Nh4 20.Nd4 Bd4 21.cd4 Ng2 22.Kg2 Qh4 23.Kh1 Bg4 24.Qe1 Qh5 25.e4 Be2 26.Rf2 Bd3 27.Qc1 Be4 28.Kg1 Qg4 0–1. Quiroga – Milos, Buenos Aires, 1991.

10.c3 0-0 11.d3 Ne8 12.Nbd2 Nd6 13.Qb3 Qb6 14.Rb1 Bf5 15.c4 Ba1 16.c5 Qb4 17.Qb4 Nb4 18.cd6 Bc3 19.de7 Re8 20.Rb3 d4 21.Nd4 Bd2–+ 22.Nf5 gf5 23.Rb2 Bc3 24.Rb3-/+ Na2 25.Rb7+= Nb4 26.d4 Kg7 27.e3 Kf6-/+ 28.Bc6? Nc6=+ 29.Rb6 Kg7?? 30.Rc6= Bb4 31.Kg2 Be7 32.Kf3 Rb8 33.Rc2 Rb6 34.Ra2 Kf6=+ 35.Kf4 Bd6 36.Kf3 Ke6 37.Ke2 h5 38.h4 f4 39.gf4 Be7-/+ 40.Ra5 Bh4 41.Rh5 Rb2 42.Kd3 Bf2 43.Ke4 Rb3 44.Rh6 Ke7 45.Rh3 Kf6 46.Rf3 Be1 47.Rh3 Bd2 48.Rh6 Ke7 49.Rh3 Ra3 50.Rg3 Ke6 51.f5 Kf6 52.Rh3 Kg5 53.Rg3 Kh4 54.Rf3 Kg4 55.Rf4 Kg3 56.Rf3 Kg2 57.f6 Bc1 58.Kf4=+ Ra6 59.Rg3 Kf2-/+ 60.Rg7 Rf6 61.Ke5 Rf3 62.e4 Ke3 63.Kd5? Bb2–+ 64.e5 Bd4 65.Rh7 Bb2 66.Kd6 Ke4 67.Ke7 Be5 68.Rf7 Ra3 69.Rh7?? Kd5 70.Kf7-/+ Rf3 71.Ke7 Bd6 72.Kd7 Rf8 73.Rh5 Be5 74.Rh7 Ra8 75.Rf7 Rh8 76.Ke7 Rb8 77.Kd7 Ra8 78.Ke7 Ra6 79.Kd7 Bf6 80.Ke8 Ke6 81.Re7 Kf5 82.Rb7 Rd6 83.Kf7 Re6 84.Rb5 Be5 85.Rb7 Rh6 86.Rd7 Bd6 87.Kg7 Kg5 88.Kf7 Rf6 89.Kg8 Bf4 90.Rg7 Kh5 91.Rf7 Rg6 92.Rg7 Re6 93.Kf7 Ra6 94.Rg1 Bg5 95.Rg2 Rf6 96.Ke8 Kg6 97.Kd7 Kf5 98.Rf2 Bf4 99.Rb2 Rd6 100.Ke7 Rd5 101.Rb7 Rd6 102.Rb5 Be5-/+ 103.Rb7 Rd2 104.Rb5 Rd1 105.Rb6 Rd5 106.Rb7 Bf6 107.Kf7 Re5 108.Ra7 Re6 109.Rd7 Be5 110.Rb7 Rh6 111.Rd7 Bd6 112.Kg7 Rg6 113.Kf7 Rf6 114.Kg7 Bf8 115.Kg8 Ke6 116.Rd2 Bd6 117.Rg2 Be5 118.Kh7 Rf7 119.Kh6 Rf8 120.Kh5 Kf5 121.Rg5 Kf4 122.Rg4 Kf3 123.Rg6 Bf4 124.Rg7 Rf6 125.Rh7 Ke4 126.Rg7 Rh6 127.Kg4 Rh1 128.Rg6 Ke5 129.Ra6 Rg1 130.Kf3 Rg3 131.Ke2 Be3 132.Ra8 Bd4 133.Re8 Kd5 134.Rc8 Ke4 135.Rc2 Re3 136.Kd2 Bb6 137.Rc4 Kd5 138.Rh4 Bd4 139.Rh5 Kc4 140.Rh7 Ra3 141.Rc7 Bc5 142.Ke2 ½–½. Aakesson,Ralf – Wessman,Richard, Oerebro S, 1989.

10.c3 0-0 11.d3 Bg4 12.Nbd2 Qd6 13.h3 Bf3 14.Bf3 Ra8 15.Bb2 h5 16.Qc2 h4 17.g4 Nh7 18.Bg2 Nc7 19.e3 e5 20.Nb3 Nf8 21.Qd2 Nfe6 Black prepares the advance d4 22.Ra1 Ra6 23.c4 Ra1 24.Ba1 b6 25.Bb2 d4 26.ed4 ed4 27.Bc1 Na6 28.Bc6 Qc6 29.b5 Qa8 30.ba6 Qa6 31.Qe2 Qa4 32.Qb2 Be5 33.Qb1 (33.Bd2!?+=) 33...Qc6-/+ 34.Nd2 Nf4 35.Ne4 f5 36.Bf4 Bf4 37.Qa1 fe4 38.Qd4 Kf7 39.de4 Qd6 40.Qh8 Qf6 41.Qh7 Ke8 42.Qb7 Bd6 43.Qd5 Bc5 44.Qa8 Kf7 45.Qb7 Kf8 46.Qc8 Kg7 47.Qd7 Qf7 (47...Qf7 48.Qf7 Kf7–+) 0–1. Poleschi,Ricardo – Rozenberg,Dov, I Master Chess Tournament (Eclipse), 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 c6 5.Bg2 a5 6.a3 d5 7.0-0 ab4 8.ab4 Ra1 9.Ba1 Na6)

10.c3 Qd6 11.Na3 0-0 12.d4 Nc7 13.Nc2 Be6 14.Nce1 Nb5 15.Nd3 Ne4 16.Qc2 Ra8 17.Nc5 (17.Bb2 Qc7+=) 17...Bf5-/+ 18.Nh4 Ng3 19.Nf5 Nf5 20.Nb7 Qc7 21.Na5 Nh4 22.Bh3 e6 23.Bb2 Bf6 24.Qd3 Nd6 25.Qg3 Qd7 26.f3 Nhf5 27.Qf4 Bd8 28.e4 g5 29.Qc1 de4 30.fe4 Ne4 31.Bg2 Nfd6 32.Qe3 (32.c4 f5 33.c5 Ne8 34.Be4 fe4=) 32...f5 33.Ra1 Bf6 34.Qd3 h6 (34...g4 35.Rf1-/+) 35.Nc4 (35.c4 Rb8 36.c5 Nb5 37.Be4 Bd4 38.Bd4 fe4 39.Qe4 Qd4 (39...Nd4?! 40.Nc4 Nf5 41.Nd6=) 40.Qd4 Nd4–+) 35...Ra1–+ 36.Ba1 Nc4 37.Qc4 Qd6 38.Be4 fe4 39.Bb2 Qd5 40.Qe2 Kg7. nolnoc77 – marekt, ChessWorld.net, 2012. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 d5 5.Bb2 c6 6.0-0 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 Na6)

10.Bc3 0-0 11.d3 Qd6!?=+.

10.Bf6 Bf6 11.b5 Nc7 12.bc6 bc6=+.

10.Bf6 Bf6 11.c3=+.

5.Bg2 Nc6

6.a3 a5 7.b5 Na7 8.a4 b6 9.d3 Bg4 10.Nbd2 0-0 11.0-0 Nh5 12.Qc1 Bb2 13.Qb2 Ng7 14.c4 Bf3 15.Bf3 (15.ef3?! Rc8+=) 15...e6 16.cd5 ed5 17.Qb3 c6 18.bc6 Nc6 19.Bd5 Rc8 20.Rac1 Nb4 21.Rc8 Qc8 22.Nf3 Qf5 23.Qc4 Rc8 24.Qe4 Nd5 25.Qf5 gf5 26.Rb1 Rc2 27.Kf1 Ne6 28.Rb5 Rc5 29.Rb3 Nc3 30.Nd2 Na4 31.Nc4 Nd4 32.Ra3 b5 33.Na5 Rc2 34.e3 Nf3 35.h4 h5 36.Nb3 Rc3 37.Ke2 Nc5 38.Kf3?? Rb3 39.Ra8 Kg7 40.d4 Ne4 41.Kf4 Kg6 42.Ra6 f6 43.f3 Nd2 44.Ra2–+ Nc4 45.Re2 b4 46.g4 Re3 47.Re3 Ne3 48.Ke3?? hg4 49.fg4 fg4 50.d5 Kf7 51.Kf4 b3 52.Kg4 b2 53.h5 b1Q 54.h6 Qg6 55.Kf4 Qh6 56.Ke4 Qh4 57.Kd3 Qf4 58.d6 Qd6 59.Kc4 f5 60.Kb5 f4 (60...f4 61.Kc4 f3 62.Kc3 f2 63.Kb3 f1Q 64.Ka2 Qfd3 65.Kb2 Q6a3) 0–1. linakip – hostel1, kurnik, 2011.

6.b5 Na5 7.0-0 Nc4 8.Bd4 Nd6 9.Nc3 Nf5 10.Be5 Ng4 (10...0-0 11.Re1=) 11.Bg7+= Rg8?? (better is 11...Ng7 12.d4 a6+=) 12.Bd4 e5 (12...Qd6 13.Be3 e5 14.Ng5+–) 13.Be5 1–0. Fritz 11 – opponent, internet, 2009.

6.b5 Na5 7.d3 c6 8.bc6 bc6 9.Bc3 0-0 10.Qd2 Nb7 11.Na3 c5 12.Bb2 e6 13.0-0 Ng4 14.Bg7 Kg7 15.Qc3 Kg8 16.Ne5 Ne5 17.Qe5 Nd6 18.Rab1 Ba6 19.Qe3 Rc8 20.Rfc1 c4 21.dc4 Nc4 22.Nc4 Bc4 23.Rb2 a6 24.h4 Qd6 25.h5 Qa3 26.Rbb1 Qe3 27.fe3 Be2 28.hg6 fg6 29.e4 Bc4 30.ed5 ed5 31.Rb6 a5 32.a3 Ra8 33.Rd1 Rfd8 34.Re1 Ra7 35.Ree6 Rf7 36.Red6 Rd6 37.Rd6 Rf5 38.Bh3 Re5 39.Rd8 Kg7 40.Ra8 Re1 41.Kf2 Re2 42.Kf3 Rc2 43.Ra5 Rc3 44.Kf4 Ba2 45.Be6 Rd3 46.a4 Kf6 47.Bd7 d4 48.Ra6 Ke7 49.Bb5 Rd2 50.Ra7 Kf8 51.Rh7 d3 52.Ke3 Rd1 53.Bd3 Rg1 54.Kf2 Rd1 55.Bg6 Rd2 56.Kf3 Bd5 57.Ke3 Ra2 58.Ra7 Ra3 59.Kd4 Bc6 60.a5 Ra4 61.Kc5 Bg2 62.Bd3 Rg4 63.a6 Rg3 64.Bb5 Rg5 65.Kb6 Rg6 66.Ka5 Rd6 67.Rc7 1–0. boryo84 – w390, lichess.org, 2017.

6.b5 Bg4?? 7.bc6+– bc6 8.Ne5 Bf5 9.Nc6 Qd6 10.Nd4 Rb8 11.Nf5 gf5 12.Qc1 0-0 13.0-0 h5 (13...Rb7 14.Na3+–) 14.d3 h4 15.Nd2 (15.e3 hg3 16.fg3 Ng4 17.Bg7 Kg7 18.Rf5 Qh6+–) 15...hg3 16.fg3?? (better is 16.hg3 f4 17.c4+–) 16...Qb6= 17.Kh1 Qb2 18.Rf5 e6 19.Rf1 Ng4 20.Nb3 Qc1 21.Rac1 Bh6 22.Rb1 Ne3 23.Rf6 Kg7 24.Rf3 Nc2 25.h3 a5 26.Rd1 a4-/+ 27.Nc5 Rfd8?? 28.d4 Rb2=+ 29.Na4 Ra2-/+ 30.Nc3 Rb2 31.Bf1? Be3–+ 0–1. algernon (2265) – gbsrao (2275), net–chess.com, 2010.

5.Bg2 Qd6!?

6.a3 a5 7.b5 0-0 8.a4 c6 9.0-0 cb5 10.ab5 Qb4 11.Ba3 Qb5 12.Be7 Re8 13.Nc3 Qd7 14.Bf6 Bf6 15.d4 Nc6 16.e3 Qd8 17.Ne1 Be6 18.Qf3 h5 19.Nd3 Bg7 20.Nf4 Nb4 21.Ne6 fe6 22.Nb5 Nc2 23.Rac1 Qd7 24.Qe2 Rec8 25.Rc2 Rc2 26.Qc2 Qb5 27.Rb1 Qc6 28.Qg6 Rf8 29.h4 Rf6 30.Qh5 Rf2 31.Bf3 Kf8 32.Qg4 Rb2 33.Rf1 Kg8 34.Bd1 e5 35.de5 Qc3 36.Kh1 Qe5? 37.Qc8+– Kh7 38.Bc2 Rc2 39.Qc2 Kg8 40.Qc8 Kh7 41.Rf5 Qe3 42.Rh5 Bh6 43.Qf5 Kg7 44.Qg4 Kh7 45.Rd5 Qc1 46.Kg2 Qb2 47.Kh3 Qf6 48.Qe4 Kh8 49.Ra5 Qf1 50.Kg4 Qd1 51.Qf3 Qd8 52.Rd5 Qg8 53.Kh3 Qe6 54.g4 Qe8 55.Qd3 Qe3 56.Qe3 Be3 57.g5 b6 58.h5 1–0. Bendig,Frank (2205) – Wallach,Naor (2210), BI–2007–F–00003, 2008.

6.a3 a5 7.b5 Qc5!? 8.a4? Ne4! 9.d4 Qb4 –+.

6.a3 a5 7.Be5 Qb6 8.Bd4 Qd6 9.Nc3 Nbd7!? 10.Nb5 Qc6 11.c4!

6.a3 Nbd7

7.0-0 e5 8.d3 0-0 9.c4 c6 10.Nbd2 Re8 11.e3=.

7.0-0 e5 8.d3 a5 9.b5=.

7.d3 0-0 8.Nbd2 e5 9.e4 (9.0-0 Rd8=) 9...c6 (9...d4 10.0-0+=) 10.0-0 Re8 11.c4 de4 (11...a5 12.c5 Qe6 13.Qe2=) 12.Ne4 Ne4 13.de4 Qe6 (13...Qe7 14.Qe2=) 14.Qc2 c5 15.Rfd1 Nb6 16.bc5 Qc4 17.Rac1 Qc2 18.Rc2 Na4 19.Ba1 Be6 20.Rb1 (20.Be5? Be5 21.Ne5 Bb3–+; 20.Ne5?? Bb3 21.Rcc1 Bd1–+ (21...Be5?! 22.Rd3 Bc2 23.Rc2 Ba1 24.Rb3–+; 21...Re5?! 22.Be5 Be5 23.Rd3+=)) 20...Rac8 The isolani on c5 becomes a target (20...Rec8 21.Be5 Be5 22.c6 bc6 23.Ne5+=) 21.Rb7+/- Nc5 ½–½. Rehorek,Martin (2280) – Bednar,Marcel (2195), CZE–ChT2C, 2010. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 Qd6 6.a3 Nbd7)

7.0-0 0-0

8.d3 a5 9.b5 c5 10.Nbd2 e5 11.e4 d4 12.Nc4 Qc7 13.Bc1 Ne8 14.Bd2 Nb6 (better 14...b6=) 15.Ba5+/- (15.Na5?! Nd6 16.a4 c4=) 15...Ra5 16.Na5 Na4 17.Qd2 (17.Nc4 Nd6 18.Nd6 Nc3+-) 17...f6 (17...Nd6 18.Nb3+=) 18.Nc4 Nc3 19.a4 Be6 20.Nb2 Nd6 21.Nd1 Nd1 22.Rfd1 Ra8 23.c4 b6 24.Qe2 Nb7 25.Qd2 Na5?? (25...Nd6 26.Re1 Ra5+-) 26.Ra3 Qf7 27.Qc1 Qf8 28.Qc2 Bh6 29.Nd2 Ra7 30.Rf1 Qb8 31.Ra2 Qd6 32.Nb3 Nb3 33.Qb3 Ra5 34.Qd1 Qb8 35.Kh1 Qc7 36.Qe2 Qb8 37.Kg1 Qc7 38.Kh1 Qb8 39.Raa1 Qc7 40.Ra2?? (40.Kg1 Bg5+-) 40...Qb8 41.Re1 Qa7 42.Qc2 Qc7 43.Qe2 Qa7 44.Rea1 Qc7 45.Bf3 Qd7 46.Qf1 Qc7 47.Bg2 g5 (47...Bg4 48.h3 Be6 49.Qe2+-) 48.h3 Qd7 49.Kh2 Kf8 50.Qe2 Qg7 (50...g4 51.Rh1+-) 51.Bf3 Qd7 52.Bg4 Bg4 53.hg4 Kf7 54.Kg2 Kg8 55.Qf3 Bg7 56.Rh1 Qe6 57.Qe2 Qd6 58.Rh5 h6 59.Ra1 Qc7 60.Rhh1 Qa7 61.Qd1 Qc7 62.Rf1 Bf8 63.Qf3 Bg7 64.Qf5 Qa7 65.Qe6 Kh7 66.f4 (66.Rh1 Ra4 67.Ra4 Qa4 68.Qb6 Qa3+-) 66...gf4 (66...Ra4 67.Ra4 Qa4 68.Qf5 (68.Qb6?! Qc2 69.Rf2 Qd3+/-) 68...Kh8 69.fe5 fe5 70.Qg6+-) 67.gf4 ef4 68.Rf4 Ra4 69.Ra4 Qa4 70.Qb6 Qc2 71.Rf2 Qd3 72.Qe6 h5 (72...Qb1 73.b6+-) 73.b6 (better 73.Qf5 Kh8 74.Qh5 Kg8 75.Qd5 Kh8+-) 73...h4 (73...hg4 74.Qf5 Kg8 75.Qg4 Qb1 76.Rf6 Qb2 77.Kh3 Qa3 78.Rf3 Qc1 79.Qe6 Kh7 80.Qf5 Kg8+-) 74.Qf5 Kg8 75.Qf3 (better 75.b7 Qg3 76.Kh1+-) 75...Qc4 76.Rb2 (76.Rb2 Qc1 77.Rb5 h3 78.Kh3 (78.Qh3?! Qd2 79.Kg1 Qd1 80.Qf1 Qg4 81.Kf2 Qh4 82.Ke2 Qe4 83.Kd1 d3=) 78...Qh6 79.Kg3+-) 1-0. Birkholz,Olga (2060) - Schulz,Petra (2075), World Senior, 2018. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Qd6 5.a3 Nbd7 6.Bg2 Bg7 7.0-0)

8.d3 e5 9.Nfd2 Rd8 10.c4 c6 11.Nc3 d4 12.Nce4 Qe6 13.c5 Ne4 14.Ne4 Nf6 15.Nd6 Bf8 16.Nc4 Nd5 17.e4 de3 18.fe3 f6 19.Qe2 a5 20.e4 Nc7 21.Rf2 ab4 22.ab4 Ra1 23.Ba1 Na6 24.Bc3 Nc5 25.bc5 Bc5 26.Bf1 Bf2 27.Qf2 b5 28.Nd2 Qd6 29.Ba5 Re8 30.Bb6 Be6 31.Bc5 Qd8 32.Nf3 Bf7 33.Ne1 Qa5 34.Nc2 Qc3 35.Nb4 Ra8 36.Nc6 Ra2 37.Ne7 Kg7 38.Qe3 Qc2 39.Qf2 Qd1 40.Qf3 Qf3 0–1. Michalek – Franke, 1994.

8.d3 Nh5 9.Qc1 e5 10.e4 d4 11.c3 c5 12.Nbd2 b6 13.Nc4 Qe7 14.bc5 Nc5 (worse is 14...Qc5 15.cd4 ed4 16.e5+–) 15.Qc2 Ba6 (15...dc3 16.Bc3 f6 17.d4 ed4 18.Nd4=) 16.Nfe5 Rac8? (better is 16...dc3!? 17.Bc3 Rac8=) 17.cd4+/- Nd3 18.Qd3 (worse is 18.Nd3 Rc4 19.Qb3 Bd4+=) 18...Be5 19.Rac1 Rfd8 20.Rfd1 Qg5 21.Rc2 Qf6 22.Bf1 Ng7 23.Qe3 Qe7 24.Rdc1 Bb8 25.d5 Bc4 26.Rc4 Rc4 27.Rc4 Be5 28.Be5 Qe5 29.Qc3 Qe7 30.Bg2 Ne8 31.e5 b5 32.Rc5 a6 33.d6 Qe6 34.Bd5 Qf5 35.Qf3 Qd7 36.Qe4 Kg7 37.Rc3 a5? 38.Rf3 f5 39.ef6! Nf6 40.Rf6 Kf6 41.Qd4 Kg5 42.Qf4 (42.Qf4 Kh5 43.Qh4; 42.Qh4 Kf5 43.Qf4) 1–0. Moor,Roger (2320) – Maier,Christian (2350), SUI–chT Switzerland, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 Qd6 6.a3 Nbd7 7.0-0 0-0)

5.Bg2 Bd7

6.0-0 Na6 7.c4 dc4 8.a3 Bc6 9.Nc3 0-0 10.b5 Bf3 11.Bf3 Nc5 12.Qc2 Nb3 13.Rad1 Nd4 14.Qc1 Nf3 15.ef3 Qd3 16.Kg2 Rfd8 17.Qb1 Qb1 18.Nb1 a6 19.ba6 Ra6 20.Nc3 Rad6 21.Nb5 Rd2 22.Rd2 Rd2 23.Bf6 Bf6 24.Nc7 (24.Rc1–+) 24...c3 25.Nb5 c2 26.Rc1 Bb2 (26...Bb2 27.Rc2 Rc2–+) 0–1. Grupp,Berthold – Angermann,Immo Frank, DESC V0026 email, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2)

6.a4 0-0 7.0-0 Qc8 8.Ra2 Bh3 9.e3 Bg2 10.Kg2 c5 11.b5 Nbd7 12.d3 e5 13.Ne5 Ne5 14.Be5 Ng4 15.Bg7 Kg7 16.h3 Ne5 17.Nc3 Qe6 18.Ra1 d4 19.ed4 cd4 20.Ne4 f5 21.Nc5 Qd5 22.Ne4 fe4 23.de4 Qe4 24.f3 Qe3 25.Qe1 Rf3 26.Qe3 Re3 27.Rf2 Rf8 28.Raf1 Rf2 29.Rf2 Ra3 30.b6 a6 31.a5 Ra5 32.Rd2 Rd5 33.c3 d3 34.Kf2 Nc4 35.Rd1 d2 36.h4 Nb2 37.Ke2 Nd1 38.Kd1 a5 39.c4 Rd6 40.c5 Rc6 41.Kd2 Rc5 42.Kd3 Rb5 43.g4 Rb6 44.h5 Rc6 45.hg6 hg6 46.g5 b5 47.Kd4 b4 48.Kd5 Rc1 49.Ke5 b3 50.Ke6 b2 0–1. rryy44 – hanry, kurnik, 2012.

5.Bg2 Nbd7

6.a4 0-0 7.b5 Re8 8.0-0 e5 9.d3 c6 10.c4 cb5 11.ab5 b6 12.Nfd2 Bb7 13.Nc3 Nc5 14.Na4 Qd7 15.Nc5 bc5 16.Ra2 d4 17.Bb7 Qb7 18.Ra6 e4 19.Nb3 Rac8 20.Ba3 Nd7 21.de4 Re4 22.Qd3 Re5 23.Na5 Qc7 24.Rc6 Qa5 25.Rc8 Bf8 26.Ra1 Nb6 27.Rc6 Qa4 28.Bb2 Qb4 29.Ba3 Qc4 30.Qc4 Nc4 31.Kf1 Na3 32.Ra3 c4 33.Ra7 Rb5 34.Rc4 Rb4 35.Rb4 Bb4 36.e3 de3 37.fe3 Bc5 38.Ke2 Ba7 39.Kf3 Kg7 40.h4 h5 41.g4 hg4 42.Kg4 Be3 43.h5 g5 44.Kf5 Kh6 45.Kf6 Kh5 46.Kf7 g4 47.Kf6 g3 48.Kf5 g2 49.Ke4 g1Q 50.Kf3 Kg5 0–1. rryy44 – pasquale1951, kurnik, 2012.

6.c4 e6 7.0-0 0-0 8.cd5 ed5 9.Nc3 c6 10.Qb3 Re8 11.e3 a5 12.b5 Nc5 13.Qd1 Nd3 14.Ba3 c5 15.h3 b6 16.Ne1 Ne5 17.d3 Rb8 18.Rc1 Be6 19.f4 Ned7 20.Nf3 h6 21.Rc2 Nh7 22.Bb2 d4 (22...Qc7!?=) 23.ed4+/- cd4 24.Ne2 Ba2 25.Nfd4 Nc5? (better is 25...Rc8+/-) 26.Nc6+– Qd6 (26...Qd3 27.Qd3 Nd3 28.Bg7 Kg7 29.Ra2 Rbc8+–) 27.Bg7 Kg7 28.Ra2 (28.Nb8?! Bb3 29.Nc6 Bc2 30.Qc2 Qd3 31.Qb2 Nf6+–) 28...Rbc8 29.Ned4 Re3 30.Qg4 Qd7 31.Qd7 Nd7 32.Rf3 Rce8 33.Re3 Re3 34.Nf3 (34.Bf1 Re8+–) 34...Nhf6 35.Nce5 Nc5 36.d4 Ne6 37.Nc4 Rb3 38.Rb2 Rb2 39.Nb2 Nc7 40.Bf1 Ne4 41.Na4 Nd6? 42.Nc3 Nf5 43.Kf2 f6 44.Bd3 Ne7 45.Be4 f5 46.Bd3 Ncd5 47.Nd5 Nd5 48.Bc4 Nc3 49.d5 Ne4 50.Kg2 Nd6 51.Ne5 a4 52.Kf3 a3 53.Ba2 Nb5 54.Nc6 Nd6 55.Ke3 Kf6 56.Kd4 g5 57.Kc3 Ne4 58.Kb4 Nd6 59.Ka3 Kf7 60.Kb4 Ke8 61.Nd4 Ke7 62.Bb1 Kf6 63.Bc2 h5 64.h4 g4 65.Bd3 Kg6 66.Nf5! Nf5 67.d6 Kf6 68.Bf5 (68.Bf5 Kf5 69.d7+–) 1–0. Ferrero,Patrick (1870) – Derien,Robert (1740), Provence–ch Majeur op, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Bg7 5.Bg2 Nbd7)

6.d3 0-0 7.Nbd2 b6 8.c4 Bb7 9.cd5 Bd5 10.0-0 c5 11.a3 e6 12.e4 Bb7 13.Nc4 Ne8 14.Bg7 Kg7 15.Re1 Qe7 16.Qd2 Nd6 17.Nd6 Qd6 18.d4 cb4?! 19.ab4 a6? 20.Qb2! Kg8 21.Nd2 Qe7 22.Nc4 Rfc8 23.Qb3 b5?! 24.Na5 Nb6 25.d5! e5 26.Bh3 Rc7 27.Rec1 Bc8 28.Bc8 Rcc8 29.Rc3 Qe8 30.Rac1 Rc3 31.Qc3 Rc8 32.Nc6 Kg7 33.Qa1! (33...Na4 34.f4 f6 35.fe5 fe5 36.Rf1) 1–0. Akesson – Andersson,A, corr SSKK, 1982–83.

6.d3 c5 7.bc5 Nc5 8.0-0 0-0 9.Nbd2 b5 10.c4 bc4 11.dc4 Bb7 12.Rc1 Nce4 13.Ne4 de4 14.Ng5 Bh6 15.h4 Qa5 16.Qb3 Rab8 17.Qc3 Qc3 18.Bc3 (18.Rc3?! e3 19.f3 Nh5=) 18...Rbc8 19.Bd4 Ba6 20.Ba7 Rc4 21.Rc4 Bc4 22.a3 Be2 23.Re1 Bd3 24.Bc5 ½–½. Pinc,Miroslav (2185) – Havlikova,Kristyna (2135), CZE–chT2A, 2008. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d5 5.Bg2 Nbd7)

6.d4 0-0 7.Nbd2 Nb6 8.a4 a5 9.b5 Bd7 10.c4 dc4 11.Ne5 Nfd5 12.Ndc4 Nc4 13.Nc4 c6 14.bc6 Bc6 15.e4 Nb6 16.Ne3 (better is 16.d5 Nc4 A) 17.dc6?? Bb2 (17...Nb2?! 18.Qd8 Rad8 19.cb7–+) 18.cb7 Rb8 (worse is 18...Ba1 19.ba8R Qd1 20.Kd1 Ra8 21.Ke2–+) 19.Qd8 Rfd8–+ (19...Rbd8?! 20.Rd1–+); B) 17.Bg7 Kg7 18.Qd4 e5 19.Qc4+=) 16...Qd7-/+ 17.e5 Bg2 18.Ng2 e6 19.0-0 Rfd8 20.Ne3 Rac8 21.Qb3 Rc6 22.Qb5 Ra8 23.Rfd1 Qc7 24.Rac1 Bh6 25.f4 Bf8 26.g4 Bb4 27.Kf2 Rc8 28.Ke2 Nc4 (better is 28...Qd8!? 29.f5 Qh4+=) 29.Nc4+= Rc4 30.Rc4 Qc4 31.Qc4 Rc4 32.Kd3 Rc6 33.Rc1 Rb6 34.Rc8 Kg7 35.d5 ed5 36.e6 f6 37.f5 Rc6 38.Rd8 Be7 39.Re8 Bd6? (better is 39...Bc5+/-) 40.g5+– gf5 41.gf6 Kh6 42.f7 Kg6 (42...d4 43.e7 Be7 44.Re7+–) 43.Rg8 Kh5 44.Bf6 (44.Bf6 Rc7 45.Rg5 Kh4 46.Bd8 Rf7 47.ef7+–) 1–0. Panjwani,Raja (2155) – McDonald,Justin (1855), CAN–ch U14 Kapuskasing, 2004. (=1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.b4 Bg7 5.Bb2 Nbd7)

5.Bg2 e6

6.0-0 0-0 7.d3 Nbd7 8.c4 c6 9.a4 b6 10.a5 ba5 11.Ra5 Qc7 12.Qa4 Nb6 13.Qa1 Qe7 14.Ne5 Bb7 15.c5 Nc8 16.b5 cb5 17.c6 Bc6 18.Nc6 Qc7 19.Rc1 Qd7 20.Bf6 (20.Bf6 Bf6 21.Qf6+–) 1–0. Poleschi,Ricardo D – Lanchipa,Cesar, SIMUL, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bg2 Bg7 5.Bb2 e6)

6.d3 c6 7.Nbd2 (7.0-0 Qe7 8.a3 0-0=) 7...Qe7 (7...Qb6 8.Rb1 0-0=) 8.0-0 (8.a3 a5=) 8...0-0 (8...Qb4 9.Rb1 Qa5 10.a3+=) 9.e4 (9.a3 Nbd7=) 9...Rd8 (9...Qb4!? 10.Rb1 Qa4+=) 10.e5= Ne8 (10...Nfd7 11.a3=) 11.d4 (11.a3!?+=) 11...Qb4+= 12.Rb1 (12.Qc1 Na6+=) 12...Qa5 (12...Nd7 13.Re1+=) 13.a3 Nd7 14.Nb3 (14.Re1 Nc7+=) 14...Qc7 15.Bc3 (15.Bc1 c5+=) 15...b6 16.Re1 (16.Qe2 c5-/+) 16...c5-/+ 17.Qe2 Bf8 (17...cd4 18.Bd2-/+) 18.Bd2 (18.dc5 Bb7+=) 18...c4 19.Nc1 (19.Na1 Ba3 20.Bg5 f6 21.ef6 Ndf6+= (worse is 21...Nef6 22.Qe6 Kg7 23.Ne5+=)) 19...Ba3 20.Bg5 f6 21.ef6 Ndf6 (worse is 21...Nef6 22.Qe6 Kg7 23.Ne5+=) 22.Bh3 (22.Ne5 Kg7-/+) 22...Qf7 (22...Bd6 23.Ne5-/+) 23.Ne5+= Qc7 24.Na2 (24.Nf3!?=) 24...Bd6 (24...Bf8 25.Bg2+=) 25.Nc3 (better is 25.Nb4 Bf8 26.Qf3+=) 25...h6 (25...Bf8!?+=) 26.Bh6 (26.Nb5 Qg7 27.Nc6 e5 28.Bf6 Nf6 29.Nd8 Bh3 30.Nd6 Rd8 31.de5 Ng4+/-) 26...Be5= 27.de5 Nh7 28.Nb5 Qf7 29.Nd4 (29.Ra1 a5=) 29...Bd7 (29...Ng7 30.Be3=) 30.Ra1 (30.Qg4 Ng7=) 30...Nc7 (30...Ng7 31.Bg7 Kg7 32.Qg4=) 31.Ra3 (31.Qg4 a5=) 31...Nb5 (better is 31...g5 32.f4 Qg6 33.fg5 Ng5 34.Bg5 Qg5+=) 32.Rf3?? (better is 32.Be6 Be6 33.Nb5+=) 32...Nd4–+ 33.Rf7 Ne2 34.Re2 Kf7 0–1. gbsrao – petre, net–chess.com, 2017.

6.d3 Qe7 7.a3=.

5.Bg2 Bf5

6.0-0 c6 7.d3 Nbd7 8.Nbd2 Qc7 9.a3 0-0 10.Re1 Ng4 11.Bg7 Kg7 12.e4 de4 13.de4 Be6 14.c4 Nge5 15.Qc2 Nf3 16.Nf3 Rad8 17.Nd4 Qd6 18.Red1 Ne5 19.c5 Qd7 20.f4 Nc4 21.Ne6 Qe6 22.Rd8 Rd8 23.Qe2 Rd2 24.Qe1 Qd7 25.Rb1 Qd4 26.Kh1 Ne3 27.e5?? Ng2 28.e6 Ne1 (28...Ne1 29.Re1 Qf2 30.ef7 Qe1#) 0–1. linakip – magicznylech, kurnik, 2012.

6.a3 0-0 7.Nd4 Bg4 8.f4 Nbd7 9.h3 Bf5 10.Nf5 gf5 11.c4 Ne4 12.Bg7+/- Kg7 13.cd5 Ng3 14.Rg1 Kh8 15.Nc3 Nf6 16.d6 Nge4 17.Ne4 fe4= 18.dc7 Qc7 19.e3 Rfc8 20.Bh1 Qd7 21.Qb3 Rf8 22.Rc1 Qh3=+ 23.Ke2? Qh2 24.Bg2-/+ Rg8 25.Kf1 Rac8 26.Rc2 Qg3 27.Rc8=+ Rc8 28.Qb2 Qh2?? 29.Rh1+/- Qg3 30.Be4 b5 31.Rh7+– Kg8 32.Rh6 Qg7 33.Bf5 Qh6 34.Bc8 Qh1 35.Kf2 Ne4 36.Ke2 Ng3 37.Kf2 Ne4 38.Ke2 Ng3 39.Kf2 Ne4 ½–½. Comet B50 – EXchess 3.11, 2004.

6.d3 Qd6 7.Qd2 (7.a3 0-0=) 7...Na6 (7...0-0 8.0-0=) 8.a3 c5 9.b5 Nc7 10.c4 dc4 11.dc4 Qe6 12.Qc1 h6 13.Nbd2 Bh3 (13...Bh3 14.Bh3 Qh3=+). algernon (2400) – eraymond (2640), net–chess.com, 2003.

5.Bg2 Bg4

6.0-0 0-0 7.d3 Bf3 8.Bf3 c6 9.Na3 Nbd7 10.c4 e6 11.Nc2 dc4 12.dc4 Nb6 13.Ne3 Qd1 14.Rfd1 Rad8 15.b5 cb5 16.cb5 Nbd5 17.Nd5 Nd5 18.Bg7 Kg7 19.Rac1 Rc8 20.Kf1 Kf6 21.Bg2 Ke7 22.a4 b6 23.e3 Rg8 24.Rc8 Rc8 25.Bd5 ed5 26.Rd5 Rc2 27.Rd4 Ke6 28.h4 h6 29.Kg2 Rc3 30.Kf3 Rc2 31.g4 f6 32.Kg3 Rc3 33.Kg2 Rc2 34.Kg3 Rc3 35.Kf4 Rc2 36.f3 Rc3 37.e4 g5 38.hg5 hg5 39.Kg3 Rc2 ½–½. Staller – Aepfler, St Ingbert 1991.

6.0-0 Nbd7 7.d3 Nh5 (7...0-0 8.c4=) 8.Bg7+= White fights for the Initiative 8...Ng7 9.Nbd2 e5 10.c4 c6 11.Qb3 Be6 12.b5 Nc5 Black prepares the advance d4 (12...0-0 13.Rfc1+=) 13.Qc3+– d4 14.Qa3 b6? (better 14...Nd7 15.Ne4 Qe7 16.Nd6 Kf8 17.bc6 bc6+=) 15.Ne5+– 0-0 (15...cb5 16.Bc6 (worse 16.Ba8 Qa8 17.cb5 Bh3+–) 16...Kf8 17.Ba8 Qa8 18.Ne4+–) 16.Nc6 (16.Nc6 Qd6 17.Qb2+– (17.Na7?! Qd7+–); 16.bc6?! Qd6 17.Nd7 Bd7 18.cd7 Rad8 19.Qa7 Rd7+–) 1–0. Pierre – Crescendo, internet, 2020.

6.0-0 Bf3 7.Bf3 c6 8.a3 d4 9.e3 de3 10.de3 0-0 11.Nc3 Na6 12.Qd8 Rad8 13.Rad1 Rc8 14.Ne4 (14.Ne2!?+=) 14...Ne4= 15.Bg7 Nc3?? (better is 15...Nf2 16.Rf2 Kg7=) 16.Bf8 (better is 16.Bc3 Rfd8 17.Bd4+–) 16...Kf8 (16...Nd1 17.Be7 Nc3+–) 17.Rd7 Rb8 18.Re1 Nb5 19.a4 (19.Rd3!? c5 20.Red1 Kg7+–) 19...Nc3 20.b5 Nb4? (20...cb5 21.Bb7 Pinning (21.Bb7 Deflection)) 21.bc6+– bc6 22.Ra7 f5 (22...e5 23.e4 Nc2 24.Rc1+–) 23.a5 Nc2 (23...g5 24.h3+–) 24.Rc1 Rb2 (24...Nb5 25.Ra6 (25.Rc2?! Na7 26.Kg2 Rb5+=) 25...Nb4 26.Rb6+–) 25.Rc7 Na2 26.Rf1 (better is 26.Rc2 Rc2 27.a6+– (27.Bc6?! Nb4 28.Rc8 Kg7+/-; 27.Rc6?! Rc6 28.Bc6 Nb4+–)) 26...Nab4 27.Bc6 Ra2 28.Rc8 Kg7 29.Bg2 Ra5 30.Rd1 e6 (30...Ra2+–) 31.Rd7 Kh6 32.Re8 (32.Rh8!? Ra1 33.Bf1 Kg5+–) 32...Ra1 33.Bf1 Ne1 34.f4 (34.h4 Nbd3 35.Rh8 Nf3 36.Kg2 Nde1 37.Kh1 Kh5 38.Rhh7 Kg4+–) 34...Nf3? (34...Ra2 35.Be2 Re2 36.Rh8+/-) 35.Kf2 (35.Kg2 Nd5 36.Re6 Rd1 37.Kf3 Nf4 38.Rg6 hg6 39.Rd1 Ne6+–) 35...Nh2 36.Bc4?? (better is 36.Be2 Ra2 37.Re6+–) 36...Ng4= 37.Ke2 Ra3?? (better is 37...Nf6 38.Red8 Nd7 39.Rd7 Nd5 40.Bd5 ed5 41.Rd5 Rb1=) 38.Ree7 Re3? (38...Nf6 39.Rd1 Rc3 40.Rh1 Nh5 41.Be6 Na6 42.Bf5 gf5 43.Re6 Kg7 44.Rh5 Nc5 45.Re7 Kf8+–) 39.Kd2 Rg3 (39...g5 40.Rh7 Kg6 41.Rhg7 Kh6 42.fg5 Kh5+–) 40.Rh7 1–0. stampyshortlegs – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Bg7 5.Bg2 Bg4)

4.g3 d6

5.a4 0-0 6.Na3 a5 (6...e5 7.Bg2=+) 7.b5= c5 8.c4 b6 (8...Bg4 9.Bg2=) 9.Bg2 Bb7 10.0-0 Nbd7 11.d4 (11.d3 Qc7=) 11...Rc8 (11...cd4 12.Nd4 Bg2 13.Kg2=) 12.d5= Re8 13.Nd2 Ne5 14.h3 Rc7 15.f4 Ned7 16.e4 (16.Rb1 e6 17.e4 Qe7+=) 16...e6 (better 16...Nd5 17.ed5 Bb2-/+) 17.Qc2 ed5 18.cd5 Nh5 19.Kh2 Bb2 20.Qb2 Qf6? (20...f5 21.Nac4 Ndf6 22.e5 Bd5 23.Nd6+/-) 21.Qb3 (better 21.Qf6!? Nhf6 22.Nac4+-) 21...g5 (21...Qe7 22.Ndc4 f6 23.Rae1+-) 22.fg5 Qg5 23.Nac4 Ne5? (23...Qg6 24.g4 Nhf6 25.Qg3+-) 24.Rf5 (24.Nd6!? Rd8 25.N6c4 Nc4 26.Nc4 Qg6+-) 24...Qg6 25.Raf1 Bc8 26.Ne5 (26.R5f2+-) 26...Re5 (better 26...de5!? 27.R5f2 f6+-) 27.Re5+- de5 28.Nc4 f5? (28...Re7 29.Qf3+-) 29.Ne5 (29.ef5 Bf5 30.d6 Rf7 31.Ne5 Qg3 32.Qg3 Ng3 33.Kg3 Rg7 34.Kh2 Rg5+-) 29...Qf6 (29...Qe8 30.d6 Be6+-) 30.d6 Be6 (30...Kh8 31.dc7 Qe5 32.ef5 Kg7+-) 31.dc7 Bb3 32.c8Q Kg7 (32...Qf8 33.Qf8 Kf8 34.Rf5 Kg7 35.Rh5 Be6+-) 33.Rf5 Qe6 34.Qe6 (34.Qf8) 34...Be6+- 35.Rh5 c4 36.Bf1 (36.Nc6!? Kg6 37.Rh4 c3+-) 36...c3 37.Bd3 Kf6 (37...Bb3 38.Rf5 Be6 39.Rf1+-) 38.Nc6 Bb3 39.Nd4 (better 39.Rh7 Bg8 40.e5 Ke6 41.Bc4 Kf5 42.Bg8+-) 39...Ba4 40.Nc2 (better 40.e5 Kg7 41.Rh7 Kg8 42.e6 Bd1 43.g4 Bc2 44.Bc2 Kf8 45.Bg6 Kg8 46.e7 a4 47.e8Q) 40...Bb3 (40...Kg6 41.Rh4 Bc2 42.Bc2+-) 41.Rh6 (better 41.e5!? Kg7 42.Rh7 Kf8+-) 41...Ke5 42.Rb6 a4 43.Ra6 (better 43.Rc6 Bc2 44.Bc2 Kd4+-) 43...Bc2 44.Bc2 1-0. geochess (2280) - AsChess (2085), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

5.c4 0-0 6.Bg2 e5 7.0-0 c6 8.d3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 e5 7.d3 c6 8.c4).

5.c4 Bg4 6.Bg2 Qc8 7.Nc3 0-0 8.Nd5 Re8 9.Nf6 ef6 10.0-0 Bh3 11.Re1 Bg2 12.Kg2 Nc6 13.Qb3 Qg4 14.h3 Qd7 15.Rac1 Ne5 16.Nh2 f5 17.d4 Nc6 18.d5 Bb2 19.Qb2 Nb8 20.e4 Na6 21.ef5 gf5 22.Nf1 Re1 23.Re1 Re8 24.Ne3 f6 25.Qf6 Qe7 26.Ng4 1–0. Fazekas – Koberl, Hastings 1956.

5.d3 a5 6.b5 0-0 7.Bg2 c6 8.bc6 bc6 9.Nbd2 Nbd7 10.Nd4 Qb6 11.Nc4 Qb4 12.c3 Qc5 13.Nc6 d5 14.N4e5 Ne5 15.Ne5 Rb8 16.d4 Qb6 17.Rb1 Bf5 18.Nd3 Rfc8 19.0-0 Qd6 20.f3 Rb6 21.Qc2 Rbc6 22.Qa4 Qe6 23.e4 de4 24.Nc5 Rc5 25.dc5 ef3 26.Rfe1 Qa6 27.Bf3 Bb1 28.Rb1 Qd3 29.Rf1 Qe3 30.Kh1 Qc5 31.Qd4 Qd4 32.cd4 Rc2 33.Rb1 Bf8 34.Bd1 Rd2 35.Bc3 Ra2 36.Bb3 Ra3 37.Bd2 Ne4 38.Be1 e6 39.Bc2 Nc3 40.Bc3 Rc3 41.Bb3 Rd3 42.Bc2 Rd4 43.Rb8 0–1. Eymann – Caoili, Las Palmas 1996.

5.d4 Nbd7 6.Nbd2 0-0 7.Bg2 e5 8.de5 de5 9.e4 Qe7 10.a3 a5 11.0-0 Rd8 12.b5 Nb6 13.Qe2 Bg4 14.Nc4 Nc4 15.Qc4 Be6 16.Qe2 Nd7 17.Rfd1 Nb6 18.Rd8 Rd8 19.a4 Qb4 20.Ba3 Qa4 21.Qe1 Qb5 22.Bf1 Bc4 23.Be7 Ra8 24.Bh3 Qe8 25.Ba3 Be6 26.Bf1 Nc4 27.Bc1 h6 28.Bc4 Bc4 29.Ra5 Ra5 30.Qa5 Be2 31.Qc3 Qd7 32.Nd2 h5 33.Kg2 Kh7 34.h4 f6 35.Qe3 Bd1 36.c3 Bh6 37.Qe1 Qa4 38.c4 Qc2 39.Nb3 Qb3 40.Bh6 Qf3 41.Kg1 Qd3 42.Qb4 Qd7 43.Bf8 Bf3 44.Qe7 Qe7 45.Be7 Kg7 46.Bd8 c6 47.c5 Be4 48.Kf1 Bf3 49.Ke1 Kf7 50.Kd2 Ke6 51.Ke3 Bh1 52.Bb6 Kd5 53.Ba7 g5 54.Bb6 Kc4 55.Ba7 Bd5 56.Bb6 gh4 57.gh4 f5 58.f3 0–1. Doda – Bilek, Cuba 1965.

5.d4 Bg4 6.Bg2 Nbd7 7.Nbd2 c6 8.c4 Rc8 9.Qb3 0-0 10.0-0 Re8 11.Rfe1 e5 12.h3 Bf3 13.Bf3 Qe7 14.e4 Kh8 15.a3 Ng8 16.Qd3 Rf8 17.Nf1 f5 18.ef5 Rf5 19.Bg4 Rf7 20.Bd7 Qd7 21.Kg2 Rcf8= 22.Re2 Rf3 23.Ne3 c5 24.de5+/- Qc6 25.Nd5?? Rd3–+ 26.b5 Qe8 27.Rae1 de5 28.Be5 Be5 29.Re5 Qf7 30.f4 Rd4 31.Ne3 Re8 32.Rc5 Rde4 33.Kf3 Qe7 34.Nd5 Qc5 35.Re4 Re4 36.Ke4 Qc4 37.Ke5 Qb5 38.Ke6 Qa6 39.Kf7 Nh6 40.Kf8 Qd6 41.Ne7 (41.Ke8 Nf5 42.Kf7 Qd5 43.Kf6 Qd6 44.Kg5 h6 45.Kg4 Qd1#) 0–1. Hartlaub,Marianne – Brieger,Sonja, Bayern–chB (Women), 1992.

5.e4 0-0 6.d3 e5 7.a4 Bg4 8.h3 Bd7 9.c3 Nc6 10.b5 Ne7 11.Nbd2 a6 12.d4 ed4 13.cd4 ab5 14.Bb5 Bb5 15.ab5 Ra1 (15...Qd7 16.Qb3+=) 16.Ba1 (16.Qa1 d5 17.e5 Ne4=) 16...Qd7+= 17.Qb3 Ra8 18.Bc3 Re8 19.Kf1 d5 20.e5 Ne4 21.Ne4 de4 22.Nd2 Qf5 (better is 22...c5!? 23.Ne4 cd4=) 23.Kg2+/- h5 24.Re1 b6 25.Ne4 Kf8 (25...Rd8 26.Qc4 Qd7 27.Bd2+/-) 26.f4 Qd7 27.Bb4 Kg8 28.Nc3 (28.Be7 Re7 29.d5 h4+–) 28...Nf5 29.d5 Nd4 30.Qc4 Nc2 31.Re2 Nb4 32.Qb4 Bf8 33.Qc4 Bc5? (33...Rd8+–) 34.Ne4 Be7 35.d6! Bd8 (35...cd6 36.Nf6 Double attack (36.Qc6 Decoy; 36.ed6 Passed pawn)) 36.dc7 Qc7 37.Qc7 Bc7 38.Nf6 Kf8 39.Ne8 Ke8 40.g4 hg4 41.hg4 Ke7 42.f5 gf5 43.gf5 Bd8 44.Kf3 f6 45.e6 Kf8 46.Ke4 Be7 47.Kd5 Bd8 (47...Ke8+–) 48.e7! (48.e7 Be7 49.Re7 Ke7 50.Kc6+–) 1–0. double_bishops – stampyshortlegs, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

5.Bg2 a5 6.a3 ab4 7.ab4 Ra1 8.Ba1 e5 9.d3 0-0 10.Nbd2 Nc6 11.b5 Ne7 12.c4 b6 13.Ng5 h6 14.Nge4 Ne4 15.de4 Be6 16.e3 Qd7 17.Qa4 Bh3 18.0-0 Bg2 19.Kg2 f5 20.ef5 Rf5 21.h3 Rf8 22.Bc3 d5 23.cd5 Nd5 24.Qc4 Kh7 25.Ne4 Qf7 26.Nd2 Nc3 27.Qc3 Qd5 28.e4 Qb5 29.Qc7 Qd3 30.Nc4 Qe4 31.f3 Qd4 32.Qc6 b5 33.Qb5-/+ e4 34.f4 Rc8-/+ 0–1. Steinbacher,Matthias (2275) – Ertl,Rolf, Koetzting, 1988.

5.Bg2 a6 6.0-0 Nc6 7.a3 0-0 8.d3 d5 (8...e5 9.Nbd2=) 9.Nbd2 Re8 (9...Ng4 10.Bg7 Kg7 11.c4=) 10.Ne5 (10.c4 e6=) 10...Ne5 11.Be5 b6 (11...Ng4 12.Bg7 Kg7 13.c4=) 12.c4+= c6 (12...Bg4 13.Re1+=) 13.Qc2 White intends c5 (13.cd5 cd5 14.Rc1 Bg4+=) 13...Be6 (13...Ng4 14.Bg7 Kg7 15.c5=) 14.Rac1 (14.Nf3 Rc8+=) 14...Rc8 15.c5 (15.Nf3 Bh6 16.Rcd1 Ng4+=) 15...b5 (15...bc5 16.bc5 (16.Qc5?? Nd7 17.Qa7 Be5–+) 16...Bh6 17.Rb1=) 16.Nb3 (16.Nf3 Nd7 17.Bg7 Kg7+/-) 16...Bh6 (16...Qd7 17.Ra1=) 17.e3 (17.Ra1 Qd7+=) 17...Bg7 (17...Qd7 18.Qb2+=) 18.Rfd1 (18.Nd4 Qd7+=) 18...Nd7 (18...Qd7 19.Nd4=) 19.Bg7+/- Kg7 20.Qb2 (20.Nd4 Nf6 21.e4 Rf8+/-) 20...Kg8 (20...Nf6 21.e4+=) 21.e4 (21.Nd4 Nf6 22.Ne6 fe6+/-) 21...Qc7 (21...de4 22.de4 Qc7 23.f4+/-) 22.f4 (better is 22.Nd4+/-) 22...f5? (better is 22...Nf6+=) 23.Nd4+– Nf8? (better is 23...Bf7 24.ef5 e5 25.fe6 Be6+–) 24.Ne6 Ne6 25.ed5 cd5 (25...Nd8 26.dc6 e6+–) 26.Bd5 Qd7 27.Qe5 (27.Qe5 Kf7 28.Re1+–) 1–0. Silva,Janderson Rossi Da (1810) – Luz,Christian Oliveira (1750), 3rd Floripa Chess Open, 2017. (=1.b4 g6 2.Bb2 Nf6 3.Nf3 Bg7 4.g3 d6)

5.Bg2 b6 6.0-0 Bb7 7.d3 0-0 8.Nbd2 Qd7 9.c4 c5 10.b5 a6 11.a4 d5 12.Ne5 Qd6 13.Ndf3 Nbd7 14.Qc2 d4 15.Ra3?? (better is 15.ba6 Bf3 16.Nf3 Ra6 17.e3 de3 18.fe3=) 15...Ne5–+ 16.Ne5 Bg2 (16...Qe5?! 17.Bb7 ab5 18.Ba8+=) 17.Nf7 Rf7 18.Kg2 Raf8 19.ba6 (19.Bc1–+) 19...Ng4 20.Rb3 (20.e4 Ne3! 21.fe3 Rf1 22.Qe2–+) 20...Rf2 21.Rf2 Ne3 (21...Ne3 22.Kg1 Rf2 23.Qc1 Rg2 24.Kh1 Qf6 25.Rb6 Qf2 26.Rb8 Kf7 27.Rf8 Kf8 28.Qe3 Rh2; 21...Rf2 22.Kg1 Rh2 23.Kf1 Rh1 24.Kg2 Qc6 25.e4 de3) 0–1. gbsrao (2360) – dmarsh (2300), net–chess.com, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

5.Bg2 e5 6.d3 c6 7.0-0 Qb6 8.a3 a5 9.Nbd2 ab4 10.ab4 Ra1 11.Qa1 0-0 (11...Qb4? 12.Nc4 0-0 13.Ba3+-) 12.Nc4 Qc7 (12...Qd8 13.Nd6 Qd6 14.Be5=) 13.Nfe5!+/- Qe7 (13...de5 14.Be5 Double attack (14.Qa5 Decoy)) 14.Nf3 Ne8 (14...Na6!?+/-) 15.Bg7 Ng7 16.e4 Be6 17.Ne3 Na6 18.Qb2 Nc7 19.Ra1 f5 20.ef5 Nf5 21.Nf5 Bf5 22.Re1 Qd7 23.Nd4 Bg4 24.f3 Qf7 25.h3 Bd7 26.f4 h5 (26...g5 27.Re4+/-) 27.Qb3 (27.Nf3 Bf5+-) 27...d5 28.Nf3 Bf5 29.c4 dc4 30.dc4 Rd8 31.Ne5 Qe6 32.Kh2 Rd2 33.Nf3 Re2 34.Re2 Qe2 35.Nd4 White prepares b5 35...Qd3 36.c5 Qb3 37.Nb3 Na6 38.b5! cb5 39.Bb7 Nc7 40.Na5 (40.Nd4 Kg7+/-) 40...b4 41.Bf3 Kf8 42.Be2 Be6 43.Bc4 (43.Bd1 Nb5 44.Bc2 Kg7+/-) 43...Kf7 (43...Bc4 44.Nc4 b3 45.Kg1=+) 44.g4 (44.Bb3 Bb3 45.Nb3 Ke6=) 44...hg4= 45.hg4 Bc4 46.Nc4 Ne6 (46...b3 47.Kg3=) 47.c6+= Ke7 (47...Nf4?? 48.c7 Ke6 49.c8Q Kd5 50.Nd2+-) 48.f5 gf5 49.gf5 b3 50.Kg3 Nf8? (50...Nd4 51.f6 Kf6 52.c7 Nf5 53.Kf4=) 51.f6 Kd8 (51...Kf6 52.c7 Passed pawn) 52.Kf4 Kc7 53.Kf5 (53.Ke5 Kc6 54.f7 Kd7=) 53...Kc6= 54.f7 Kd5 55.Nb2 Kd4 (55...Nd7 56.Nd3=) 56.Kf6 (56.Nd1 Nd7+=) 56...Kc3= 57.Na4 ½-½. Marn,Jan (2365) - Tadic,Ka (2020), 25th HIT Open, 2020. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

5.c4 e5

6.d3 0-0 7.Nbd2 a5 8.a3 ab4 9.ab4 Ra1 10.Qa1 Nc6 11.b5 Nb4 12.Qa4 c5 13.bc6 Nc6 14.Bg2 Bd7 15.0-0 Qb6 16.Rb1 Qc7 17.Qb3 Na5 18.Qb4 Nc6 19.Qc3 Ra8 20.Ba3 e4 21.de4 Ne4 22.Qc1 Nc3 23.Kf1 Nb1 24.Nb1 Bf5 25.Nc3 Qa5 26.Nb5 Nb4 27.Nh4 Bd7 28.Bb7 Rb8 29.Bd5 Nd5 30.Bd6 Rb5 31.cb5 Qb5 32.Nf3 Nc3 33.Qc2 Bf5 34.Qd2 Ne4 35.Qd1 Nd6 36.Qd6 Qb1 37.Kg2 Be4 38.Qd8 Bf8 39.Qe8 Bf3 40.ef3 Qc2 41.h4 Qc4 42.Qa8 Qe6 43.Qb8 Kg7 44.Qb2 Qf6 45.Qb8 Bd6 46.Qc8 h6 47.Qa8 Be5 48.Qb7 Bd4 49.f4 g5 50.hg5 hg5 51.Qe4 gf4 52.gf4 Qg6 53.Kf3 Qe4 54.Ke4 Bf2 0–1. grajaro (1925) – termo80 (1775), kurnik, 2012.

6.d3 0-0 7.Nbd2 Nc6 8.b5 Ne7 9.Bg2 Rb8 10.0-0 b6 11.a4 Bb7 12.a5 Nd7 13.Qc2 f5 14.Ng5 Rf6 15.Bb7 Rb7 16.ab6 ab6 17.f4 h6 18.Ngf3 Rf8 19.fe5 de5 20.e4 f4 21.g4 g5 22.h3 Ng6 23.Nb3 Qe7 24.Ba3+– Nc5 25.Bc5 bc5 26.Ra6 Rb6 27.Rfa1 Rfb8 28.Ra7 R6b7 29.R7a3 Kh7 30.Na5 Rb6 31.Nc6 Rc6 32.bc6 Qd6 33.Ra6 Nf8 34.Rb1 Rb1 35.Qb1 Ne6 36.Kg2 Bf8 37.Qc2 Nd4 38.Qc3 Be7 39.Nd4 ed4 40.Qa5?? f3= 41.Kf3 Qh2 42.Ra7 Qh3 43.Ke2 Qe3 44.Kd1 Qd3 45.Kc1 Qc4 46.Kb2 Bd6 47.Rc7= Bc7 48.Qc7 Kg6 49.Qd6 Kg7 50.c7 Qc3 51.Ka2 Qa5 52.Kb3 Qb5 53.Kc2 Qa4 54.Kd3 Qb3 55.Kd2 Qe3 (55...Qe3 56.Kd1 Qf3 57.Kd2 Qf2 (57...Qg4?? 58.Qe7 Kg6 59.Qe8 Kg7 60.c8Q Qg2 61.Kc1 Qf1 62.Kb2 Qe2 63.Kb3 Qd3 64.Ka4 Qc4 65.Ka5 Qb4 66.Ka6 Qa3 67.Kb5 Qb3 68.Kc5 Qc3 69.Kd6 Qa3 70.Qc5 Qc5 71.Kc5+–) 58.Kd3 Qf1 59.Kd2 Qg2 60.Kd3 Qf1 (60...Qg4 61.Qe7 Kg6 62.Qe8 Kf6 63.c8Q Qd1 64.Kc4 Qc2 65.Kd5 Qb3 66.Kc5 Qc3 67.Kd6 Qb4 68.Qc5 Qc5 69.Kc5+–) 61.Kd2 Qf2 62.Kd3 Qf1=) 0–1. piiotr99 (1890) – carocan (1740), kurnik, 2011.

6.d3 a5 7.b5 b6 8.a4 Bb7 9.Bg2 Nbd7 10.0-0 0-0 11.Nc3 Nc5 12.e3 Qe7 13.d4 Ncd7 14.de5 Ne5 15.Ne5 Bg2 16.Ng6 hg6 17.Kg2 Ne4 18.Nd5 Qd7 19.Bg7 Kg7 20.Qd4 1–0. racvac001 (1685) – 06zb (1695), kurnik, 2012.

5.d3 c6 6.Bg2 0-0 7.0-0 Qb6 8.a3 Nbd7 9.Nbd2 Ng4 10.Qc1 Nge5 11.c4 Nf3 12.Nf3 Nf6 13.Rb1 Bg4 14.Bc3 Bf3 15.ef3 Qc7 16.Qb2 Nh5 17.Bg7 Ng7 18.Rfe1 e6 19.d4 Nf5 20.d5 cd5 21.c5 dc5 22.Rbc1 c4 23.f4 Ne7 24.b5 b6 25.a4 Qc5 26.Ra1 c3 27.Qb3 Rac8 28.Rac1 d4 29.Bf1 Rfd8 30.Bd3 Nd5 31.Re2 a5 32.ba6 Ra8 33.Qb5 Ra7 34.Be4 Rda8 35.Bd5 Qd5 36.Re5 Qa2 37.Qb6 Ra6 38.Qb1?? Ra4 39.Rb5 Qd2 40.Qc2 Qc1 41.Qc1+= Ra1 42.Rb1 d3?? 43.Ra1+– d2 44.Qd1 Ra1–+ 45.Qa1 c2 46.Qa8 Kg7 47.Qa1 f6 48.Qa7 Kh6 49.Qa1 c1Q 50.Qc1 dc1Q 51.Kg2 e5 52.fe5 fe5 53.h4 g5 54.hg5 Kg5 (54...Kg5 55.Kf3 Qc6 56.Ke2 Kg4 57.Kd3 Qd5 58.Kc2 Qc5 59.Kb3 Qf2 60.Kc4 Qd4 61.Kb5 e4 62.Ka6 e3 63.Kb5 e2 64.Ka5 e1Q 65.Ka6 Qdb4 66.Ka7 Qa1#) 0–1. linakip – pennyb, kurnik, 2012.

6.d3 c6 7.Bg2 Na6 8.a3 0-0 9.0-0 Re8 10.Nbd2 Nc7 11.Qc2 Bf5 12.e4 Bc8 13.Nb3 Nd7 14.d4 Qe7 15.d5+/- Nf6 16.dc6 bc6 17.Rad1 Ne6 18.c5+– dc5 19.Be5 cb4 20.Bd6 Qb7 21.ab4 Qb6 22.Ne5 Ba6 23.Rfe1+– Rac8 24.Nc4 Bc4+/- 25.Qc4 Ng4 26.Qe2 h5 27.h3 Ne5+= 28.Kh1 Qb5 29.Bf1 Qa4? 30.Qe3+– Nd7?? 31.e5 Be5 32.Ra1 Ba1 33.Ra1+– Qa1 34.Na1 c5 35.Qd2 cb4 36.Bb5 Nec5?? 37.Qb4 Re4 38.Qd2 Rce8?? 39.Nc2 R8e6 40.Bf4 Nb6 41.Ne3 Nb3 42.Qc3 Nd4 43.Bd3 Rc6 44.Qb2 Rf4 45.gf4 Ne6 46.f5 Nf4 47.Be4 Rc8 48.Kh2 g5 49.Qf6 Kf8 50.Qg5 Ne2 51.Qh6 Ke7 52.f6 Kd6 53.Nf5 Kd7 54.Qd2 (54.Qd2 Nd4 55.Qd4 Nd5 56.Qd5 Ke8 57.Qd6 Rc2 58.Qe7#) 1–0. Klings,P (2145) – Bjorneboe,K (1940), Copenhagen DEN, Politiken Cup, 2011.

5.d3 0-0

6.Nbd2 e5 7.Bg2 Nc6 8.b5 Ne7 9.0-0 Nd7 10.c4 f5 11.Qc2 h6 12.Nb3 g5 13.c5 Ng6 14.Nfd2 Nf6+= 15.Nc4 h5 16.Nba5+/- Rb8 17.Rac1 h4 18.Qb3 Kh7 19.b6 ab6= 20.cb6 c5 21.Ne3 f4 22.Nd5 g4 23.Nf6 Qf6 24.Be4 f3 25.Rc2 Bh6 26.Qd5 hg3 27.hg3 Bg7 28.Nc4 Be6?? 29.Qd6+– Rbd8 30.Qe5 Qe5 31.Ne5 Be5 32.Be5 Bf5 33.Bc7 Rd7? 34.ef3 gf3 35.Rc5 Be4 36.de4 Ra8 37.Rc3 Rf7 38.a3 Re8 39.Re1 Nf8 40.Ree3 Rd7 41.Rf3 Ne6 42.Rfd3 Rf7 43.f4 1–0. Karbowiak,Adam (2205) – Januszewski,Piotr (1845), DMR KPZSzach Poland, 2009.

6.Bg2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.d3).

5.d3 e5

6.Nbd2 0-0 7.Bg2 Nc6 8.a3 Ne7 9.0-0 a5 10.c3 c6 11.Qb3 Qc7 12.Rfe1 Be6 13.c4 d5?? 14.ba5 d4 15.Qc2 Ra5 16.Nb3 Raa8 17.Nc5 Bc8 18.Bc1 h6 19.Bd2 b6 20.Nb3 Bd7 21.Qc1 Kh7 22.e3 de3 23.Be3 Ng4 24.Bd2 Ra7 25.Bc3 Qd6 26.h3 Nf2 27.Kf2 e4? 28.de4 f5 29.Bg7 Kg7 30.Qc3 Kh7 31.Rad1 Qc7 32.e5 1–0. giorgo – nks05 (1670), kurnik, 2012.

6.Nbd2 Nc6 7.b5 Ne7 8.Bg2 Bd7 9.c4 Qc8 10.Qc2 Bh3 11.Bh3 Qh3 12.c5 Qd7 13.a4 0-0 14.cd6 cd6 15.Ba3 Rac8 16.Qb2?? (better is 16.Qb3+=) 16...e4–+ 17.Nd4 ed3 18.ed3 Qh3 19.Bd6 Rfe8 20.Kd1 (20.Be5 Ned5 21.Ne2–+) 20...Nfd5 21.N2f3 Nf5 22.Bf4 Nf4 23.gf4 Nd4 24.Nd4 Rcd8 25.Ra3 Bd4 26.Qb1 Qf3 27.Kc2 Re2 28.Kb3 Rb2 29.Qb2–+ Bb2 30.Kb2 Qh1 0–1. wictorio (1840) – lordundead (1775), kurnik, 2011.

5.Bg2 0-0

6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 d6 6.Bg2).

6.c4 c6 7.0-0 e5 8.d3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 e5 7.d3 c6 8.c4).

6.d3 Nbd7 7.Nbd2 e5 8.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 e5 7.d3 Nbd7 8.Nbd2).

5.Bg2 c5

6.bc5 dc5

7.0-0 0-0 8.c4 Nc6 9.Ne5 Ne5 10.Be5 Qb6 11.Qb3 Qe6 12.f4 Nd7 13.Bg7+= Kg7 14.Nc3 Nb6 15.d3 Qe3 16.Kh1 Bd7 17.Bb7+/- Rab8 18.Bf3 h5 19.Qa3+– Bg4 20.Qc1 Qd4 21.Nb5+– Qd7 22.Nc3 h4 23.Qe3 Bf3 24.Rf3 hg3 25.Rg3 Qc6 26.Qf3 Qf6 27.Rc1 Rh8 28.Ne4 Qh4 29.h3 Nd7 30.Rcg1 Rb2 31.Ng5 Rf8 32.a4 Rb6 33.Qe3 Re8 34.f5!+– Nf8 35.Qc5 f6 36.Nf3 Qh5 37.a5 Rb2 38.Qc6 (38.Qc6 Reb8 39.Qe4+–) 1–0. Davies,Nigel R – Gormally,Daniel, Ch Great Britain Scarborough (England), 1999.

7.0-0 Nc6 8.Na3 0-0 9.Nc4 Be6 10.Nce5 Ne5 11.Be5 Bd5 12.d3 Qd7 13.c4 Bc6 14.a4 a5 15.Qb3 Qe6 16.Qb2 Qd7 17.Rfb1 Ra6 18.Ra3 Qe6 19.Ne1 Bg2 20.Ng2 b6 (better is 20...Ra7!?+=) 21.Nf4+– Qc6 22.Rb3 (22.Nd5 Ra7+–) 22...Qa4 23.Rb5 (23.Rb6 Rb6 24.Qb6 Nd7–+) 23...Rfa8 24.Ra1 (24.Ra1 Qb4 25.Qc2+–; 24.Rb6?! Rb6 25.Qb6 Qc2+=) 1–0. Arnaudov,P (2205) – Kolev,At2 (2015), ch–BUL S/F Men, Plovdiv BUL, 2010.

7.Nc3 0-0 8.0-0 Nc6 9.d3 (9.Rb1 Qd7=) 9...Rb8 (9...Bg4 10.Qd2=) 10.e4 (10.Rb1 Bg4=) 10...e5 (10...b5 11.Qc1=+) 11.Qe2 (11.Ne2 Qd6=) 11...Nd4 12.Nd4 (12.Qd2 Re8=+) 12...cd4 (12...ed4 13.Nd1=+) 13.Nd5 (13.Nd1 Bg4 14.f3 Be6=) 13...Nd5=+ 14.ed5 f5 15.Rac1 Qb6 (15...Re8 16.Rfe1 Bd7 17.c4=) 16.c3 (16.c4 dc3 17.Bc3 Bd7=) 16...dc3 (16...Bd7 17.c4=) 17.Bc3. gbsrao (2165) – bwood (2120), net–chess.com, 2008.

7.c4 0-0 8.0-0 Nc6 9.d3 Be6 10.Nbd2 Qc7 11.Nb3 b6 12.Qc1 Rad8 13.Bc3 Bc8 (13...Bg4 14.Nbd2=) 14.Qb2 (14.a4 Bg4=) 14...Nh5 15.a4 Bc3 16.Qc3 a5 17.d4 (17.Nbd2 f5=) 17...cd4 18.Nbd4 Nd4 19.Nd4 Ba6 20.Rfc1 Nf6 21.Rab1 Rd6 22.e3 (22.c5 bc5 23.e3 Nd7=) 22...Rc8 (22...Nd7 23.Nb3+=) 23.Nb5 (23.Bh3!? Nd7 24.c5 Qc5 25.Qb2=) 23...Bb5+= 24.Rb5 Nd7 25.Bf3 (25.Qa1 Rd2+=) 25...Nc5 26.Ra1 Rcd8 27.Rb2 (27.Ra2 R8d7+=) 27...Qd7 (27...e5 28.Be2-/+ (28.Qe5?? Rd1 29.Rd1 Rd1 30.Bd1 Qe5–+)) 28.Qc2 Nd3 (28...e6 29.h3+=) 29.Rbb1 (29.Rb5 Qe6 30.Rd5 Nb4 (30...Rd5?! 31.cd5 Qe5 32.Rf1=) 31.Rd6 A) worse is 31...Nc2 32.Rd8 (32.Re6?! fe6 33.Rb1 Nb4=) 32...Kg7 33.Rc1+/-; B) 31...Rd6+=) 29...Qf5 (29...Ne5 30.Qe4 Nf3 31.Qf3+=) 30.Bd5+= Nb4 31.Qf5 gf5 32.Ra3 e6-/+ 33.Bf3 Rd2 34.Rc3 Ra2 35.Bd1 Rdd2 36.Bb3 Rab2 37.Rb2 Rb2 38.Kg2 Na6-/+ 39.Kf3 Nc5 40.Bc2 Kg7 41.g4 fg4 42.Kg4 f5 43.Kg5 h6 44.Kh5 Ra2 45.h3 Ra1–+ 46.e4 fe4 ½–½. Byway,Paul (2215) – Spivack,Simon (2180), BCF–chT2, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6 5.Bg2 c5)

7.c4 0-0 8.0-0 Nc6 9.d3 Bg4 10.Ne5 (10.Nc3 a6=) 10...Ne5 (better is 10...Qb6!? 11.Qb3 Be2=+) 11.Be5= b6 (better is 11...Qd7!? 12.Nc3 Bh3=) 12.Nc3+/- Qd7 13.Ba8 Ra8 14.d4 (14.Qb3 Bh3 15.Rfe1 Qe6+/-) 14...Rd8 (14...cd4 15.Qd4 Qd4 16.Bd4+/-) 15.dc5 Qc8 16.Qa4 Qc5 17.Bf6 ef6 (17...Bf6 18.Ne4 Qe5 19.Nf6 Qf6 20.Rad1 Rd1 21.Rd1 Be2 22.Re1+–) 18.Rfd1+– Rc8 (18...Rf8 19.Rd5 (19.Qa7?! f5 20.Rac1 Bd4+/-) 19...Qc7 20.Rad1+–) 19.Qa7 (19.Nd5!? f5 (19...Be2? 20.Re1 b5 21.Qa6+–) 20.Rab1 Bf8 (20...Be2 21.Re1+–) 21.Nf6 Kg7 22.Ng4 fg4 23.Qa7 Qc4 24.Qb6 Qe2 25.Qb2 Qb2 26.Rb2 Ba3+–) 19...f5+/- 20.Rac1 Bd4 21.Rf1 (better is 21.Nd5!? Bf2 22.Kg2 Be2 23.Ne7 Kg7 24.Nc8=) 21...Qc4 (better is 21...Bh3 22.Nd5 Bf1 23.Rf1 Kg7+/-) 22.Nb5?? (better is 22.h3 b5 23.Qa6 Bc3 24.hg4+=) 22...Bf2!–+ 23.Kf2 Qe2 24.Kg1 Qe3 25.Kg2–+ Rc1 26.Rc1 Qd2 (26...Qd2 27.Kg1 Qc1 28.Kg2 Qd2 29.Kg1 Qe3 30.Kg2 Bf3 31.Kf1 Qe2 32.Kg1 Qe1#; 26...Bf3 27.Kf1 Qe2 28.Kg1 Qg2#) 0–1. Bacrot,Etienne (2695) – Mamedyarov,Shakhriyar (2750), World Blitz Moscow RUS, 2007.

5.Bg2 c6

6.0-0 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 c6).

6.0-0 a5 7.a3 0-0 8.d3 (8.Nc3 Bd7=) 8...Ne8 (better is 8...ab4!? 9.ab4 Ra1 10.Ba1 Na6=+) 9.Bg7+= Kg7 10.Nbd2 f5 (10...Be6 11.Ng5+=) 11.c4 (11.Nc4 ab4 12.ab4 Ra1 13.Qa1 Nf6+/-) 11...Nf6 12.Qc2 Na6 13.Qb2 Qb6 14.Rfb1 ab4 15.ab4 Bd7 16.d4 Rfc8 (16...f4 17.gf4 Bf5 18.c5+/-) 17.c5+/- ½–½. Halmeenmaeki,T (2160) – Pohjala,H (2160), TCh–FIN, 2010.

6.0-0 a5 7.ba5 Qa5 8.d3 Qh5 9.c4 Na6 10.Nbd2 Nc5 11.a4 Bh3 12.d4 Nce4 13.Ne4 Ne4 14.Qb3 Rb8 15.Qe3 Nf6 16.Rfb1 Bf5 17.Re1 Bh6 18.Qb3 0-0 19.Nh4 Be6 20.Bf3 Qa5 21.Bc3 Qc7 22.d5 cd5 23.cd5 Nd5 24.Bd4 Ne3 25.Qb2 Nc4 26.Qb5 Bd7 27.Qb3 Nd2 28.Qd3 e5 29.Be3 Nf3 30.Nf3 Be3 31.Qe3 Bc6 32.Rac1 Qd7 33.a5 Bf3 34.Qf3 Rfc8 35.Rc8 Rc8 36.Rb1 Rc6 37.h4 h5 38.Qd5 Qc7 39.e4 Kg7 40.Kg2 Kf6 41.Qd2 Kg7 42.Rb5 Rc4 43.Qd5 Rc5 44.Qb7 Qb7 45.Rb7 Ra5 46.Rb6 Ra4 47.Rd6 Re4 48.Kf3 Re1 49.Ra6 Kf8 50.Ra7 Ke8 51.Rb7 Kf8 52.Ra7 Kg7 53.Ra6 Rb1 54.Rc6 Rb7 55.Ra6 Rd7 56.Ke3 f6 57.f4 ef4 58.Kf4 Kf7 59.Rb6 Ke7 60.Ra6 Rd6 61.Ra5 Ke6 62.Ke4 Rb6 63.Ra4 g5 64.hg5 fg5 65.Kf3 Rb3 66.Kf2 Kf5 67.Rc4 Rb5 68.Ra4 Re5 69.Kf3 g4 70.Kf2 Kg5 71.Rb4 h4 72.gh4 Kh4 73.Rb3 Rf5 74.Kg2 Ra5 75.Rc3 Ra2 76.Kg1 g3 77.Rc8 ½–½. Malich – Sumar, Tel Aviv 1964.

6.0-0 Na6 7.a3 0-0 8.c4 Bd7 9.Qb3 Nc7 10.Nc3 Be6 11.Ng5 Bd7 12.Nce4 Ne4 13.Ne4 b5 (13...Bb2 14.Qb2 f5 15.Nc3=) 14.c5 (14.Bg7 Kg7 15.Qc3 f6 16.cb5 Nb5+=) 14...Be6 15.Qc2 Bh6?? (better is 15...Bb2 16.Qb2 d5=) 16.Qc3 (16.cd6 Nd5 17.Qc6 Rb8+–) 16...f6 17.d4?? (better is 17.cd6 ed6 18.Nf6 Qf6 19.Qf6 Rf6 20.Bf6+–) 17...Nd5 18.Qf3 f5= 19.Nc3 Nc3 20.Bc3 Bd5= 21.Qd3. gbsr (2240) – rudedog (2290), net–chess.com, 2003.

6.0-0 e5 7.d3 0-0 8.Nbd2 Nbd7 9.c4 Qe7 10.Qb3 Ne8 11.e4 c5 12.a3 Nc7 13.Nb1 b6 14.Nc3 Bb7 15.Rae1 Ne6 16.Nd5 Qd8 17.Nd2 Nd4 18.Bd4 cd4 19.f4 Bd5 20.ed5 f5 21.fe5 Ne5 22.Nf3 Ng4 23.Re6 Ne3 24.Re1 Rc8 25.h3 Re8 26.Nd2 Qg5 27.Nf1 Be5 28.Qa4 Rf8 29.Qd7 Rcd8 30.Qe7 Qe7 31.Re7 Rf7 32.Re5 de5 33.Ne3 de3 34.Re3 Re7 35.c5 bc5 36.bc5 e4 37.de4 Rd5 38.ed5 Re3 39.d6 Kf8 40.c6 Rc3 41.Kf2 Ke8 42.a4 g5 43.c7 Kd7 44.Bb7 a5 45.Ke2 h6 46.Kd2 Rc4 47.Kd3 Rc1 48.Kd4 Rc2 49.Ke5 Rc5 50.Kf6 f4 51.c8Q Rc8 52.Bc8 1–0. Gerusel – Sand.

6.0-0 Bg4 7.d3 0-0 8.Nbd2 Nbd7 9.Qc1 h5 10.e4 e5 11.Nc4 Nb6 12.Nb6 ab6 13.a4 Bf3 14.Bf3 h4 15.g4 h3 16.Qg5 Qd7 17.Qh4 Nh7 18.Qh3 Ng5 19.Qg2 Nf3 20.Qf3 f6 21.Qg2 Kf7 22.h3 Rh8 23.f3 g5 24.Qg3 Rh4 25.Kg2 Rah8 26.Rh1 d5 27.Rh2 de4 28.fe4 Qd6 29.Bc3 c5 30.b5 c4 31.Rah1 cd3 32.Qd3 Qc5 33.Be1 R4h6 34.Bf2 Qb4 35.Qb3 Qb3 36.cb3 Rc8 37.Rb1 Rc2 38.Kf1 Bf8 39.Kg1 Bb4 40.Bb6 Rh2 41.Kh2 Rh8 42.Bf2 Rd8 43.Kg2 Rd2 44.Rc1 Bc5?? 45.Rf1 b6 46.Kf3 Rd3 47.Ke2 Rb3 48.Bc5 bc5 49.Rc1 Rb4 50.Rc5 Ra4 51.Rd5 Rb4 52.Kf3 Ke6 53.Kg3 Re4 54.Rc5 Rb4 55.Rc6 Ke7 56.Rc7 Kd8 57.Rf7 Rb5 58.Rf6 Ke7 59.Rf5 Ke6 60.Rg5 Kf6 61.Rf5 Kg6 62.Rf3 Kg5 63.h4 Kg6 64.Re3 Rd5 65.Kf3 Kf6 66.Rb3 Kg6 67.Rb6 Kf7 68.h5 Kg7 69.g5 e4 70.Ke4 Rg5= 71.h6 Kh7 72.Kf4 Rg6 73.Rb7 Kh6 74.Rb8 Rf6 75.Ke5 Rg6 76.Rh8 Kg5 77.Rh1 Ra6 78.Rg1 Kh6 79.Rh1 Kg7 80.Rg1 Kf8 81.Rf1 Ke7 82.Rc1 Ra5 83.Kd4 Kf6 84.Kc3 Ke5 85.Kd2 Rd5 (85...Rd5 86.Ke3 Rb5=). linakip – juric27, kurnik, 2011.

6.0-0 h5 7.h3 (7.c4 Bg4=) 7...Rg8 (7...e5 8.c4=) 8.c4 (8.a3 Be6=) 8...h4 (8...g5 9.Ng5 Nh7 10.Bg7 (10.Nh7? Bb2 11.Nc3 Ba1 12.Qa1 Bf5–+) 10...Ng5 11.Bc3 Bh3 12.Bh3 Nh3 13.Kh2=+) 9.g4+= g5 (9...e5 10.d3+=) 10.Qc2 Be6 (10...Na6 11.a3+/-) 11.d4 (11.Ng5 Qc8+/-) 11...d5 (11...Qc8 12.e4+/-) 12.Nbd2 (12.Ng5 Qd6+/-) 12...Nbd7 (12...Qb6 13.Ng5 Bd7 14.a3+/-) 13.Ng5 Bh6 (13...Nf8!?+/-) 14.Ne6+– fe6 15.f4 Qc7 (15...Ng4 16.hg4 Rg4 17.Qh7+–) 16.g5 Bg5 17.fg5 Rg5 18.Rf2 Qg3 19.Qb3 Qb3 (19...e5 20.cd5 Qb3 21.ab3 Nd5 22.b5+–) 20.ab3 (20.Nb3?! dc4 21.Na5 Nd5+–) 20...0-0-0 (20...e5 21.Nf3 Rg3 22.de5+– (22.Ne5?! Rb3 23.Ba3 a5+–; 22.Nh4?! Rb3 23.de5 Rb2 24.ef6 Nf6+–)) 21.Ra7 Kb8 22.Ra2 Rdg8 23.Nf3 Rh5 24.Rf1 Ne4 25.Rfa1 Kc7 26.Kh2 Ng5 27.Nd2 Rh7 28.b5 c5 29.dc5 Nc5 30.Be5 Kd7 31.b4 Nf7 32.Bd4 Ne4 33.Ne4 de4 34.Be4 Rh5 35.Bb7 Nd6 36.Bc6 Kc7 37.Ra7 Nb7 38.Rb7 Kd6 39.Rd7 1–0. b4_player – opponent, gamecolony.com, 2007.

6.a3 Qb6 7.0-0 a5 8.Bd4 Qc7 9.d3 e5 10.Bb2 Qb6 11.Nbd2 Be6 12.Ng5 (12.Nc4 Bc4 13.dc4 c5+= (worse 13...ab4 14.Qd6 Nbd7 15.ab4+-)) 12...ab4= 13.Ne6 fe6 14.Nc4 (14.ab4 Ra6+=) 14...Qc7= 15.ab4 Na6 (15...Ra1!? 16.Qa1 Nd5=) 16.b5!+/- cb5 17.Bb7! Rb8? (17...Qb7 18.Nd6 Double attack (18.Nd6 Decoy)) 18.Nd6!+- (18.Ba6?! bc4 19.Bc1 cd3 20.cd3 0-0=) 18...Qd6 19.Ra6 (worse 19.Ba6 Rb6=+) 19...Qb4 (19...Qc7 20.Bg2 0-0+-) 20.Bc6 Nd7 21.Qa1 Bf6 (21...Qe7 22.Ra7 Rd8+-) 22.Be5 Be5 (22...0-0 23.Bd7 Qe7 24.Be6 Kg7 25.Bf6 Rf6 26.Bc4+-) 23.Qe5 (better 23.Bd7 Kd7 24.Qe5+-) 23...Ke7 (23...0-0 24.Bd7 Rbe8+-) 24.Bd7 (24.Qg7 Kd6 25.Bd7 Rb6 26.Rb6 Kc5 27.Re6 Qc4 28.Qe5 Kb4 29.Rb1 Ka3 30.Ra6 Qa4 31.Qb2) 24...Kd7 (24...Rhe8 25.Be6 Qd4 26.Qd4 Rb6 27.Qg7 Ke6 28.Rb6 Kf5 29.Qf7 Kg4 30.Qf4 Kh5 31.Qh4) 25.Qg7 (25.Qg7 Qe7 26.Ra7 Kd6 27.Qe7 Ke5 28.Rd7 Kf5 29.e4 Kg4 30.f3 Kh5 31.Qh4; 25.Ra7 Kc6 26.Qc7 Kd5 27.c4 bc4 28.Qd7 Qd6 29.Ra5 Kd4 30.Rc1 Qd5 31.Qg7 e5 32.Rc4 Qc4 33.Qe5) 1-0. Lacasta Palacios,J (2080) - Villa Labrada,Sergi (1825), XXI Foment Martinenc Open, 2019. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

6.c4 Na6 7.b5 cb5 8.cb5=.

6.c4 Bd7 7.Nc3 (7.0-0 Na6=) 7...a6 (7...d5 8.d3=) 8.0-0 (8.Ne4 Be6+=) 8...b5 (8...0-0 9.Qc2=) 9.d3 (9.cb5 ab5 10.Ne4+=) 9...Qc8 (9...0-0!?+=) 10.Ne4+/- a5 11.cb5 (11.Bf6 Bf6 12.Nf6 ef6+/-) 11...cb5 (11...ab4 12.Bf6 Bf6 13.Nf6 ef6 14.Qb3+-) 12.Nf6 Bf6 13.Bf6 ef6 14.Nd4 Ra6 15.a4 ba4 (15...ab4 16.ab5 Ra3 17.Ra3 ba3 18.Qa1+-) 16.b5+- Rb6 17.Qa4 0-0 (17...Qc5 18.Rfb1+-) 18.Qa5 (18.Rfc1 Qd8+-) 18...Qd8 19.Rfc1 Be6 (19...Re8 20.e3+-) 20.Qa7 Nd7? (20...d5+-) 21.Rc7 Rb8 (21...f5+-) 22.Ne6 fe6 23.Rd7 Qe8 (23...Rf7 24.Rd8 Rd8+-) 24.Rg7 Kh8 25.Rh7 Kg8 26.Qg7 1-0. Hildingstam,Stefan - Haynie,Billy, corr or01-005 E-mail, 2001.

5.Bg2 Nc6

6.a3 b6 7.Qc1 Bb7 8.0-0 Rb8 9.d3 0-0 10.Nbd2 e6 11.c4 a6 12.Nb3 Ne7 13.c5 bc5 14.bc5 dc5 15.Nc5 Bf3 16.Bf3 (worse is 16.ef3 Qd6 17.Bf6 Bf6=) 16...Nfd5 17.Bg7 Kg7 18.Na6 Ra8 19.Nc5 Qc8 20.Qc4 c6 21.Rfc1 Ra5 22.Qb3 Rd8 23.Nb7 Rb5 24.Qa4 Rb7 25.Qc2 Qc7 26.e4 Nf6 27.e5 Nfd5 28.d4 Rc8 29.Qc5 Rb5 30.Qc4 c5?? 31.Be2?? Rb7 32.f4 Ne3 33.Qd3 N3d5 34.dc5 Qc6 35.Bd1 Rb5 36.Ba4 Rcb8 37.Bb5 Rb5 38.Qd4 Nf5 39.Qf2 Nc7 40.a4 Rb8 41.Qc2 Nd4 42.Qd3?? Rb4 43.a5?? Nb3 44.Qc3 Na1?? 45.Qb4+– Qb5?? 46.Qb5 Nb5 47.Ra1 Nc3 48.a6 Nb5 49.Ra5 Nc7 50.a7 Na8 51.c6 Kf8 52.c7! Nc7 53.Rc5 (53.Rc5 Na8 54.Rc8 Kg7 55.Ra8 g5 56.Rd8 h6 57.a8Q h5 58.Rg8 Kh7 59.Qf8 gf4 60.Qg7#) 1–0. linakip – valonk, kurnik, 2012.

6.b5 Na5

7.d3 a6 8.a4 0-0 9.0-0 Bd7 10.c4 e5 11.Nc3=.

5.Bg2 Bd7

6.0-0 Bc8 7.d3 c6 8.Nbd2 Nbd7 9.a3 b6 (9...0-0 10.c4=) 10.c4 Bb7 11.Qc1 e6 12.a4 Bh6 (12...0-0 13.a5 ba5 14.ba5=) 13.Qc2 Bg7 14.Nb3 Qc7 15.a5 0-0 16.a6 Bc8 17.Rac1 (better is 17.Nfd4 Nb8 18.b5+=) 17...Ba6+= 18.b5 Bb7 19.Nfd4 c5 20.Nc6 Rac8?? (better is 20...a6-/+) 21.Ne7+/- Kh8 22.Nc8 Rc8 23.Bc3 Bg2 24.Kg2 Qb7 25.Kg1 Ng4 26.Qb2 e5 27.e4 Ndf6 28.Qe2 Nh6 29.Nd2 Nhg8 30.Nf3 Ne7 31.Bd2 Kg8 32.Ng5 h6 33.Nh3 g5 34.Kg2 a6 35.Ng1?? ab5= 36.cb5 Qd7 37.Rb1 Ng6 38.Nf3 Ne8 39.Qd1 f5 40.Ne1 f4 41.Nf3 fg3 42.hg3 g4 43.Nh2 Nf6 44.Qc1 d5 45.Bh6 de4 46.Bg7 Kg7 47.de4 Ne4 48.Qd1 Qb7 49.Kg1 Nc3 50.Qg4 Nb1 51.Rb1 Rf8 52.Re1 Qf7 53.f3 e4 54.Qe4 c4 55.f4 c3 56.Qd4 Kg8 57.Qc3 Qc7?? 58.Qc7 (58.Qc7 Kh8 59.Ra1 Re8 60.Qf7 Rc8 61.Qf6 Kg8 62.Qe6 Kf8 63.Qc8 Kf7 64.Qf5 Kg8 65.Qg6 Kf8 66.Qh7 Ke8 67.Ra8#) 1–0. giorgo – edziozkrainy1, kurnik, 2012.

6.c4 c6 7.0-0 0-0 8.d3 e5 9.Nbd2 Nh5 (9...Re8 10.c5 dc5 11.bc5=) 10.Qc2 f5 (10...Qe7 11.d4+=) 11.e3 (11.c5 Be6+=) 11...Qe7 (11...Be6 12.a4=) 12.a4 Na6 13.b5 Nb4 14.Qb3 c5 (14...a5 15.Rab1=) 15.Ne1+= Rab8 16.Nc2 Nc2 17.Qc2 Nf6 18.f4 (18.Rae1 a6+=) 18...Ng4 (18...ef4 19.ef4 Rfe8 20.a5=) 19.Rfe1 (19.Rae1 a6+=) 19...Rfe8 20.Nf1 Qf7 (20...Nf6 21.a5=) 21.Rad1 Kh8 22.h3 Nh6 23.Nh2 Qf8 24.Qf2 Re7 25.d4 (25.fe5 de5 26.d4 Qc8+/-) 25...cd4 (25...e4 26.a5+=) 26.ed4 (26.fe5 de3 27.Re3 Qe8+/-) 26...e4+= 27.Nf1 b6 (27...Rc8 28.Ne3+=) 28.Ne3 Be6 29.d5 Bd7 30.Ba3 (30.Bg7 Qg7 31.Ra1 Qc3+/-) 30...Ree8 31.Qd2 Nf7 32.Qf2 Rec8 (32...Nh6 33.Rb1+=) 33.Bf1 Nd8 34.g4 (34.Bb2 Nb7+=) 34...Nb7= 35.Be2 (35.Bb2 fg4 36.Bg7 Qg7 37.hg4 Nc5=) 35...Kg8 (35...Nc5 36.Bc5 Rc5 37.gf5 Bf5 38.Nf5 gf5 39.Kh2=) 36.Kh2 Rd8 37.Rg1 Qf6 38.gf5+= Bf5 39.Rb1 Qf7 40.Nf5+/- Qf5 41.Bg4 Qf6 42.Be6 Kh8 43.Qe3 Rf8+= 44.Rgf1 Qd4? 45.Qd4+– Bd4 46.Bb2?? Bb2+= 47.Rb2 Nc5 48.Bg4 Rf6 49.Re2 Rbf8 50.Kg3 h5 51.Be6 Re8 52.f5 g5?? 53.Ra1+= Re7 54.a5 Kg7 55.ab6 ab6 56.Ra8 Rf8 57.Ra3 Kf6= 58.h4 g4 59.Kf4= Rg7 60.Ree3 Rb8 61.Rg3 Rc8?? 62.Rac3 Ra8-/+ 63.Rc2 Rga7 64.Re3 Ra3 65.Rcc3? Ra1 66.Re2 Rf1 67.Kg3 Rf3 68.Rf3 ef3 69.Rb2 Ra4 70.Rc2 Ra1 71.Bg8 Ne4 72.Kf4–+ f2 73.Rf2 Nf2 74.c5 bc5 75.b6 Rb1 76.Bh7 Rb6 77.Bg6 c4 78.Bh5–+ c3 79.Ke3 Kf5 80.Be8 g3 81.Ba4 Rb2 82.Kf3 c2 83.Bc2 Rc2 84.Kg3 Ng4 85.Kf3 Rc3 86.Ke2 Ke4 87.Kd2 Rh3 0–1. Hartlaub,Marianne – Burzler,Anette, Bayern–ch (Women), 1996. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6)

5.Bg2 Nbd7

6.0-0 0-0 7.d3 c5 8.a3 Qb6 9.Nbd2 d5 10.Rb1 cb4 11.ab4 Qc7 12.c4 Rd8 13.Qb3 e6 14.Rfc1 Qd6 15.Ra1 b6 16.Bd4 Bb7 17.c5 bc5 18.bc5 Qc6 19.Qc3 a5 20.Nb3 e5 21.Ne5 Ne5 22.Be5 Qe6 23.Bd4 a4 24.Na5 Ne4 25.de4 Bd4 26.Qd4 Ra5 27.c6 Bc6 28.Qb6 Raa8 29.Qc6 Qe5 30.ed5 a3 31.Qc7 Rd6 32.Qc3 Qe2 33.Ra3 Re8 34.Ra7 Re5 35.Bf3 1–0. Cukier – Alberto, Matinhos 1994.

6.0-0 c5 7.b5 0-0 8.a4 a6 (8...c4 9.Nc3=) 9.c4 (9.Nc3 Nb6 10.d3 Nfd5=) 9...ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qa2 13.d3 Qa8 (13...Nb6!?=) 14.Nbd2 Qb8 15.Qa1 b6 16.Qa3 Bb7 17.Ra1 Qc7 18.Qb2 Rb8 19.Ra7 Qc8 20.Qa1 (20.Bh3 Ra8 21.Ra8 Ba8+=) 20...Ra8 21.Ne1 Bg2 22.Ng2 Ra7 23.Qa7 Qb8 24.Qa6 (24.Qa2 Ng4 25.Bg7 Kg7 26.Qb2 Kg8+=) 24...Nh5 (24...d5 25.Nf3=) 25.Bg7+= Kg7 26.Ne3 e6 27.Qa1 Nhf6 28.Ne4 e5 (28...h6 29.h3+=) 29.Nc3+/- Qb7 30.Qa6 Qb8 31.Ned5 Nd5 32.Nd5 (32.cd5?! f5=) 32...Kf8 33.Kg2 f5 34.f4 Kf7 35.e4 (35.Kf2 Kg7+=) 35...Ke6 (35...fe4!? 36.de4 ef4 37.Nf4 g5=) 36.Kf3+/- ef4 (36...Kf7 37.ef5 gf5 38.Kg2+/-) 37.gf4 (37.Nf4 Kf7 38.ef5 gf5+/-) 37...fe4 (37...Qd8!?+=) 38.de4+/- g5 (better 38...Kf7!?+/-) 39.Qa1+- Qf8?? (better 39...Kf7 40.fg5 h6+-) 40.f5 Kf7 41.Qa7 Qd8 (41...Qe8 42.Nb6 Kg8 43.Nd7 Qh5 44.Ke3 Qh3 45.Kd2 Qh2 46.Kc3 Qg3 47.Kc2 Qg2 48.Kb3 Kf7 49.Nc5 Kf6 50.Qa1 Kf7+-) 42.Kg4 (42.Nb6 Qe7 43.Qd7 Qd7 44.Nd7 Ke7+-) 42...Kg7?? (better 42...Kf8+-) 43.Kh5 (better 43.Nb6 h5 44.Kg3+-) 43...h6= 44.Kg4 Kh8? (better 44...Qe8=) 45.Kg3+- h5 46.h3 (46.Qb7 h4 47.Kf3 Ne5 48.Ke2 g4 (worse 48...Nc4 49.Qf7 Qg8 50.Qe7+-) 49.Qb6 Qf8+-) 46...h4 (46...Qe8 47.Kf3+/- (47.Nb6?! Qe5 48.Kf3 Qf4 49.Kg2 Qe4 50.Kg1 Qe3 51.Kg2 Qe2 52.Kh1 Qd1 53.Kg2 Ne5=)) 47.Kg2 Ne5? (better 47...Qe8 48.Kf3 Ne5 49.Ke2 g4+- (49...Nc4 50.Nf6 Qe4 51.Ne4 Kg8 52.f6 Kf8 53.Ng5 d5 54.Qf7)) 48.f6?? (better 48.Qb6 Qb6 49.Nb6+-) 48...Qc8?? (better 48...Qg8+/-) 49.Qg7 1-0. Lance5500 (2355) - Tactics404 (1775), lichess.org, 2017. (=1.b4 d6 2.Bb2 Nf6 3.Nf3 g6 4.g3 Bg7)

5.Bg2 e5

6.d3 a5 7.b5 Nbd7 8.a4 0-0 9.0-0 Re8 10.Nbd2 Nc5 11.d4 ed4 12.Nd4 Nfe4 13.Ne4 Ne4 14.c3 Qe7 15.Qc2 Bd7 16.Rad1 (16.c4 Nc5=) 16...c6 17.c4 Rac8 18.bc6 bc6 19.e3 d5 20.c5 (20.Nb3!? Bb2 21.Qb2=) 20...Rb8+= (20...Nc5? 21.Ba3+–) 21.Ba3 h5 (21...g5 22.Rb1+=) 22.Rfe1= h4 23.f3 Ng5 24.f4 (24.Qd2!?+=) 24...Ne4-/+ 25.Be4 de4 (25...Qe4!? 26.Qe4 Re4-/+) 26.Qd2+= hg3 ½–½. Pinc,Miroslav (2210) – Folk,Petr (2250), CZE–chT2a, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6 5.Bg2 e5)

6.d3 a6 7.0-0 0-0 8.c4 Nc6 9.Qb3 Be6 10.Nbd2 d5 (better is 10...Qe7!?=) 11.Ne5+/- (worse is 11.Be5 dc4 12.Qb2 cd3 13.ed3 Ne5 14.Ne5 Nd5+=) 11...dc4 12.Ndc4 Ne5 13.Be5 b5 14.Qb2 Bd5 15.Bd5 Nh5?? (better is 15...Qd5 16.Nd2 Ne8 17.Bg7 Ng7+–) 16.Ba8 1–0. Poleschi,Ricardo D – Molina,Amaelh, SIMUL, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6 5.Bg2 e5)

6.d3 a6 7.c4 Nc6 8.a3 0-0 9.0-0 Rb8 10.Nc3 b5 11.Nd2 Bb7 12.Nd5 Ne7 13.Nf6 Bf6 14.Bb7 Rb7 15.e3 Bg7 16.Rc1 c6 17.Ne4 f5 18.Ng5 Qd7 19.cb5 ab5 20.Qb3 d5 Black prepares e4 21.f4 e4 22.Bg7 Kg7 23.Qb2 Kg8 24.Qe5 Re8 (24...ed3? 25.Ne6 Rf7 26.Nc5+–) 25.Qf6 Rf8 26.Qe5 Re8 (26...ed3? 27.Ne6 Rf7 28.Nc5+–) 27.Qf6 Rf8 28.Qc3 h6 29.Nh3 ed3 30.Nf2 Qe6 31.Rfe1 Qf6 32.Nd3 Rc7 33.Qe5 Ra7 34.Rc3 Kg7 35.Qf6 Kf6 36.Ne5 Rc8 37.Rec1 Rac7 38.Rc5 g5 39.Kf2 g4 40.h3 h5 41.hg4 fg4 (41...hg4!? 42.R1c3 Ke6+=) 42.Rh1+/- Rh8 43.Ng4! Kf5 (43...hg4 44.Rh4 Double attack (44.Rh8 Pinning; 44.Rh8 Deflection; 44.Rh4 Decoy)) 44.Ne5+– Ke6 45.Rhc1 Rhc8 46.Rh1 Rh8 47.g4 h4 48.Nf3 Ra8 49.Rc3 Rca7 (49...Kf7 50.Rh4 Kg7 51.Ng5+–) 50.Rh4 Ra3 51.Rh6 Kd7 (51...Kf7 52.Ra3 Ra3 53.Ne5 Kf8+–) 52.Ne5 Kc7 53.Rc1 (53.Ra3 Ra3 54.f5 d4 55.ed4 Ra8+–) 53...Ra2 (53...d4 54.ed4 Ra2 55.Kf1+–) 54.Kf3 R8a6 (54...Ra1 55.Ra1 Ra1+–) 55.Re6 (55.Re6 Nc8 56.Rh1+–) 1–0. Ozen,Bahadir (2125) – Bayyurt,Izge (1610), TCh–TUR First League, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6 5.Bg2 e5)

6.d3 b6 7.0-0 Nc6 8.a3 Bb7 9.Nbd2 Qd7 10.c4 0-0-0 11.Qb3 a5 12.b5 Na7 13.a4 Bf8 14.Bc3 Ng4 15.Qb2 f6 16.e4 Nh6 17.d4 Kb8 18.d5 f5 19.Nh4 fe4 20.Ne4 Bg7 21.Bd2 Rhf8 22.Qc1 Qf7 23.Bh6 Bh6 24.Qh6 Bd5 25.cd5 Qd5 26.Ng5 Qd4 27.Qh7 Nc8 28.Ne6 Qa1 29.Ra1 Rfe8 30.Qc7# 1–0. linakip – blokeelite, kurnik, 2011.

6.d3 c6 7.0-0 a5 8.ba5 Ra5 9.Nbd2 0-0 10.Nc4 Ra8 11.a4 (11.Qd2 Ra4=) 11...c5 (11...Be6 12.Qe1=) 12.Nfd2 Nc6 13.Nb3 Be6 14.Ne3 (14.a5 Qc7=) 14...Qd7 15.c4 Bh3 16.Bc3 Bg2 17.Kg2 Ne7 18.Nd2 (18.Qc2 Bh6+=) 18...Qc6 19.Kg1 Bh6 20.h3 Nh5 (better is 20...Be3 21.fe3 Kg7=) 21.Kh2 (21.Ng4 Bg7=) 21...f5 (better is 21...Ng3!? 22.fg3 Be3-/+) 22.Ng2 Qd7 (22...Bd2 23.Qd2 Ra4 24.Qb2=) 23.e3 Nc6 24.f4 (24.Rb1!?=) 24...Bg7 25.Nb3?? (better is 25.Qb3-/+) 25...ef4–+ 26.Bg7 fg3 (26...Kg7?! 27.Nf4 Nf4 28.ef4+=) 27.Kh1 (27.Kg1 does not help much 27...Qg7 (27...Kg7?! 28.Nf4–+; 27...Ng7?! 28.d4–+) 28.a5 Kh8–+) 27...Qg7 (better is 27...Kg7 28.Nf4 Nb4 29.Kg2 Nf4 30.ef4–+) 28.Qf3 (28.d4 Nf6 29.dc5 dc5 30.Nc5 Qe7–+) 28...Ne5 (better is 28...Qc3!? 29.Qd5 Rf7 30.Rab1–+) 29.Qd5 Kh8 (29...Nf7 30.Nd2–+) 30.Rab1 (30.Nf4 Nc6 31.Rab1 Nf4 32.ef4 Qc3–+) 30...Qe7 31.Nd2 Nf6 32.Qb7 Qb7 33.Rb7 Nd3 34.Rfb1 Ra4 35.Nf4 Nf4 36.ef4 Ra2 37.Nf3 Ne4 38.Rd7 Rfa8 39.Rdb7 g2 (39...g2 40.Kh2 Rc2–+) 0–1. Gardon,Ermanno (2080) – Sibilio,Mario (2380), Castellaneta op 4th, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 d6 5.Bg2 e5)

6.d3 c6 7.0-0! a5 8.c3 Na6 9.a3 0-0! 10.Nbd2 Be6 11.Ng5 Bd7 12.Qc2 Qe7 13.h4 d5 14.Rae1 ab4 15.cb4 Nc7 16.Ndf3 Ng4 17.e4 h6 18.Nh3 Nb5 19.ed5 cd5 20.a4 Rac8 21.Qb3 Nc7 22.Nf4 Qd6 23.Ne2 Be6 24.d4 e4 25.Ne5 Ne5 26.de5 Be5 27.Be5 Qe5 28.Nf4 Na6 29.Ne6 fe6 30.b5 Rc3 31.Qb1 Nc5 32.a5 Nd3 33.Re3 Qf5 34.a6 ba6 35.ba6 Ra3 36.Qb6 Nf2 37.Ra3 e3 38.Re3 Qc2 39.Qe6 Kg7 40.Qe5 Kg8 41.Qe6 Rf7 42.Qe8 Kg7 43.Re7 Nh3 44.Bh3 Qc5 0–1. sacaniev – adad, kurnik, 2012.

6.d3 c6 7.e4 0-0 8.0-0 Bg4 (8...a5 9.a3=) 9.h3 (9.Nbd2 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 Na6=) 9...Be6 10.Ng5 Qc8 (10...a5 11.a3=) 11.Kh2 Nh5 12.Ne6 Qe6 13.f4 (better is 13.d4=) 13...ef4–+ 14.Bg7 fg3 (14...Ng7?! 15.Rf4 f5 16.Nd2=; 14...Kg7?! 15.gf4 Nf4 16.Qd2-/+) 15.Kh1 Kg7 16.Qf3 (16.Nc3 Nd7–+) 16...Nd7 17.d4 Qe7 (17...a5 18.Qc3–+) 18.a3 f5 19.ef5 (19.Nd2 fe4 20.Qe4 Rae8–+) 19...Rf5 20.Qc3 Rf1 21.Bf1 d5 (better is 21...Rf8!? 22.d5 Qe5 23.Bg2–+) 22.Nd2 Rf8 23.Bg2? (23.Nf3–+) 23...Rf2 24.Rf1 Qe2 25.Rf2 Qf2 26.Nf3 Nf4 27.Qd2 Qd2 28.Nd2 Nf6 29.Bf1 h5 30.Nf3 Ne4 31.a4 Kf6 32.Ne1 h4 33.Nd3 Nd3 34.cd3 Nd2 35.Be2 Nb3 0–1. geebs (2250) – gideon (2215), net–chess.com, 2004.

6.d3 Nc6 7.a3 0-0 8.0-0 Bd7 9.Nbd2 Qc8 10.Re1 Bh3 11.Bh1 Bh6 12.e3 Bg4 13.c4 Qd7 14.Qc2 Rae8 15.d4 ed4 16.Nd4 Bg7 17.Nc6 bc6 18.Qa4 Qf5 19.Rac1 c5+/- 20.bc5 Bh3 21.Bf6+– Qf6 22.Qa7 Qb2 23.Qa5 Re5 24.Rb1 Qc2 25.Rec1 Qf5 26.Qc7 Bh6 27.Rb3 Rc8 28.cd6 Re3?? 29.d7+– Rb3 30.d8Q Kg7 31.Qd4 Kg8 32.Qcd8! Bf8 33.Qh8 (33.Qh8 Kh8 34.Qd4 Bg7 35.Qa7–+). Riediger,M (2300) – Gulde,Ju (2075), 21st Schachtage, 2006.

6.d3 Nc6 7.a3 Bg4 8.0-0! Qd7 9.Re1 Bh3 10.Bh1 Ng4 11.Nbd2 f5 12.e3 0-0-0 13.c4 h5 14.Qa4 e4 15.Bg7 Qg7 16.Nh4 Nf2 17.Kf2 g5 18.Ng2 ed3 19.b5 Ne5 20.Qa7 Ng4 21.Kg1 Qb2 22.Rad1 Rde8 23.Qa8 Kd7 24.Qb7 Bg2 25.Bg2 Re3 26.Bc6 Ke6 27.Bd5 Kf6 28.Qc7 Re1 29.Re1 Qd2 30.Qe7 Kg6 31.Re6 Nf6 32.Rf6# 1–0. sacaniev – bradipoepace (1695), kurnik, 2012.

6.d3 Nc6 7.b5 Ne7 8.a4 Bg4 9.h3 Bd7 10.0-0 Qc8 11.Kh2 h5 12.c4 h4 13.gh4 Nf5 14.Nbd2 Nh4 15.Nh4 Rh4 16.Nf3 Rh5 17.Ng1 Ng4 18.Kg3 Qd8 19.Nf3 f5 20.e3 Qf6 21.Qd2 Bh6 0–1. Eymann – Faraci, Imperia 1981.

6.d3 Nc6 7.Nbd2 Nb4-/+ (8.0-0 0-0-/+) 0–1. gbsr (2300) – warlord (2300), net–chess.com, 2003.

6.d3 0-0

7.0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 e5 7.d3).

7.Nc3 c6 8.e4 h6 9.0-0 Be6 10.Qe2 Qc8 (10...Nbd7 11.a4=) 11.Rad1 (11.d4 a5 12.de5 de5=) 11...Bh3 (11...b5 12.Qd2=+) 12.d4= Bg2 13.Kg2 Nbd7 (13...ed4 14.Nd4 Re8 15.Rfe1=) 14.de5 de5 15.Qc4 (15.Rd2 Qc7+=) 15...Re8 16.Rd6 (16.a4 Nb6 17.Qb3 c5=) 16...Bf8 17.Rdd1 Nb6 18.Qb3 Qc7 19.a4 Rad8 (19...a5 20.b5=) 20.a5 Nbd7 21.Ra1 a6 22.Rfd1 Nh5 23.Na4 c5 24.Nc5 Nc5 (24...Bc5 25.bc5 Nhf6 26.Qc4=) 25.bc5+= Rd1 26.Rd1 Qc5? (better is 26...Bc5 27.Rd5 Bd6+=) 27.Rd7+– (< 27.Qb7 Nf6 28.Qa6 Ne4+/-) 27...Re7 28.Ba3 (28.Ba3 Qa3 29.Qa3 Rd7 30.Qc3+–) 1–0. gbsrao (2230) – vanadis (2410), net–chess.com, 2009.

7.Nc3 h6 8.e4 (8.0-0 Qe7=) 8...c6 (8...a6 9.d4=) 9.0-0 Be6 10.Re1 (10.d4 Nbd7=) 10...a5 (10...Qb6 11.a3=+) 11.b5 Qd7 (11...a4 12.d4=) 12.a4 Qc7 13.Ba3 (13.Qd2 Nbd7=) 13...Qd7 (13...Nbd7 14.Rb1=) 14.d4 Nh5? (better is 14...ed4!? 15.Nd4 Rd8+=) 15.d5 (15.de5 c5 16.Nd5 Bd5 17.Qd5 Re8+–) 15...cd5+/- 16.ed5 Bg4+= 17.Qd2 Qc7 18.Ne4 Rd8 19.Rac1 f5 20.Nd6 Rd6 21.Bd6 Qd6=+ 22.c4 Nd7 23.h3 Bf3 24.Bf3 Nhf6 25.Rc2 e4 26.Bg2 Nc5–+ 27.f3? Qg3 28.fe4 Nfe4 29.Qe3 Qh4 30.Be4 Ne4 31.c5?? Nc5! 32.Rd2 Ne4 33.d6 Nd2 34.d7 Bd4 (34...Bd4 35.Kg2 Be3 36.Re3 f4–+) 0–1. gbsrao (2370) – gtan (2350), net–chess.com, 2008.

7.Nbd2 Nc6 8.c4 Nb4 9.0-0 Nd7 10.a3 Nc6 11.Qc2 f5 12.Rab1 Nf6 13.e4 (13.Qb3 Qe7-/+) 13...Nh5 (13...fe4 14.de4 b6 15.Rfd1-/+) 14.Rfe1 f4 15.d4 (15.Qb3 Qd7-/+) 15...fg3 16.hg3 ed4 (16...Nd4 17.Bd4 ed4 18.c5-/+) 17.Nb3 Bg4 (17...Ne5 18.Nbd4 Qe7 19.Nd2-/+) 18.Nfd4 Ne5 19.c5 Nf3 (better is 19...b6 20.cd6 cd6=+) 20.Nf3 Bf3 21.Bg7 Ng7= 22.Nd4 Bg2=+ 23.Kg2 Qf6 24.Qc4 Kh8 25.cd6 Qf2-/+ 26.Kh3 Nh5?? 27.Rg1?? Nf4?? 28.Kg4?? h5–+ 29.Kh4 g5! 30.Kg5 Rg8 31.Kf5 Ne2 32.Ke5 cd6 33.Kd5–+ Qf7 34.Ne6 Rg5 35.Kd6 Rd8!! 36.Nd8 Qc4 (36...Qc4 37.Rgf1 Rg6 38.Kd7 Rg7 39.Nf7 Rf7 40.Rf7 Qf7 41.Kc8 Qe8 42.Kc7 b6–+) 0–1. gbsr (2175) – themuppeteer (2280), net–chess.com, 2003.

7.Nbd2 Nbd7 8.0-0 Rb8 9.e4 Qe7 10.c4 Ne8 11.Qc2 b6 12.a3 a6 13.Rfe1 c6 14.Nf1 Nc7 15.Ne3 Ne6 16.Qd2 Nd4 17.Nd4 ed4 18.Nc2 c5 19.a4 h5 20.h3 h4 21.g4 g5 22.Bc1 Bf6 23.Rf1 Ne5 24.f4 gf4 25.Qf4 Bg7 26.Ne1 Be6 27.g5 Ng6 28.Qd2 f6 29.b5 ab5 30.ab5 Ne5 31.Nf3 Nf3 32.Rf3 f5 33.ef5 Bf5 34.Qf2 Bd3 35.Rf8 Rf8 36.Bd5 Kh7 37.Qh4 Kg6 38.Bf4 Rh8 39.Qg3 Bf5 40.Re1 Be5 41.Be5 Rh3 42.Qg2 de5 43.Be4 Rh4 44.Bf5 Kf5 45.Rf1 Rf4 46.Rf4 ef4 47.Qd5 Qe5 48.Qc6 Qe1 49.Kg2 Qe2 50.Kg1 f3 0–1. Kristiansen – Mortensen, Denmark 1989.

7.e4 a5 8.b5 Nbd7 9.0-0 Nc5 10.a4 h6 11.Nbd2 Be6 12.d4 Nce4 13.de5 de5 14.Be5 Re8 15.Ne4 Ne4 16.Bg7 Kg7 17.Qd4 Qd4 18.Nd4 Bc4 19.Rfe1 Nc5 20.Reb1 Rad8 21.Nb3 Bb3 22.cb3 Rd4 23.Bf1 b6 24.Bc4 Kf6 25.Rd1 Red8 26.Rd4 Rd4 27.Rc1 g5 28.h3 Ne4 29.Bf1 Nc5 30.Bc4 Ne4 31.Bf1 Nc5 ½–½. Rubinetti – Ricardi, Argentina 1994.

7.e4 Nc6 8.b5 Ne7 9.0-0 Bd7 10.a4 a6 11.c4 Ne8 12.d4 f6 13.Qd3 ab5 14.ab5 Ra1 15.Ba1 Qa8 16.Nbd2 Be6 17.Bc3 Qb8 18.Nb3 c6 19.bc6 bc6 20.Rb1 Qc7 21.de5 fe5 22.Na5 Bc8 23.Bb4 c5 24.Bc3 Nf6 25.Ne1 Nc6 26.Nc6 Qc6 27.Nc2 Be6 28.Ne3 Ra8 29.Ra1 Ra1 30.Ba1 Qa6 31.Bc3 Ng4 32.Ng4 Bg4 33.h3 Be6 34.Bf1 Bh6 35.Kg2 Kf7 36.Be1 Ke7 37.Qc3 Qb7 38.f3 Qc8 39.Kh2 Qa6 40.Qa5 Qa5 41.Ba5 Kd7 42.Kg2 Be3 43.h4 h6 44.Be2 Bc1 45.Kf2 Kc6 46.Bd3 g5 47.hg5 hg5 ½–½. Bollmann – Armbruster, Fredeburg 1994.

5.Bg2 e6

6.0-0 Nbd7 7.d3 0-0 8.c4 e5 9.Nc3 c6 10.a4 a6 11.Nd2 Re8 12.b5 Qc7 13.Nb3 Nf8 14.a5 ab5 15.cb5 d5 16.Qc1 Bd7 17.Nd5 Nd5 18.Bd5 Rec8 19.b6 Qd6 20.Bc4 Ne6 21.a6 ba6 22.b7 Nc7 23.ba8Q Ra8 24.Ba3 1–0. Swerin – Piwnicki, corr S–PL bord 29 1985–1987.

6.0-0 Nbd7 7.d3 b6? 8.Nd4+– d5?? (better is 8...c6 9.Bc6 Rb8+–) 9.Nc6 Ng4 10.Bg7 Qg5 11.h4 Qh5 12.Bh8 g5 13.c4 gh4 14.cd5 hg3–+ 15.Re1 gf2 16.Kf1 Ne3 17.Kf2+= Nd1 18.Rd1 Qh4 19.Kg1 ed5 20.Nc3+/- Nf8? 21.Nd5+– Ne6 22.Rf1 Bb7 23.Nf6 Kf8 24.a3?? Bc6+/- 25.Bc6 Qd4?? 26.Kg2+– Rd8 27.Nh7 Kg8 28.Bd4 Rd4 29.Nf6 Kg7 30.Kg3 Rd6 31.Ne8 (31.Ne8 Kf8 32.Nd6 cd6 33.Rf2+–) 1–0. b4_player – opponent, kurnik.pl, 2008.

6.0-0 Nbd7 7.d3 c6=.

5.Bg2 Bg4

6.0-0 Qd7 7.Qc1 Nc6 8.a3 0-0-0 9.d3 Kb8 10.Nbd2 h5 11.Nb3 Rhg8 12.b5 Ne5 13.c4 Bf3 14.ef3 Nd3 15.Qd2 Nb2 16.Qb2 Nh7 17.Qc2 Ba1 18.Ra1 Nf6 19.a4 e5 20.c5 dc5 21.Nc5 Qd6 22.Rc1 Nd5 23.f4 Nb4 24.Qc4 Qd4 25.Qf7 Nd3?? 26.Rc2 Nc5–+ 27.Qe7 Qd1 28.Bf1 Qc2 29.Kg2 Nd3 30.fe5 Qf2 (30...Qf2 31.Kh3 Nf4 32.Kh4 g5 33.Qg5 Qh2 34.Bh3 Qh3#) 0–1. linakip – ostryelk, kurnik, 2011.

6.0-0 Qd7 7.d3 Nc6 8.a3 h5 9.Nbd2 h4 10.Nh4 Rh4 11.gh4 0-0-0 12.Nf3 Rh8 13.e4 Bf3 14.Qf3 Rh4 15.Qg3 Rg4 16.Qh3 Nh5 17.f3 Nf4?? (better is 17...Rg2 18.Qg2 Bb2-/+) 18.Qg4+– Qg4 19.fg4 Bb2 20.Ra2 Bd4 21.Kh1 Ne5 22.Rf4 Be3 23.Rf1 Ng4 24.h3 Nf2 25.Rf2! Bf2 26.c4 Bd4 27.Re2 Kd7 28.Bf3 f6 29.Kg2 a6 30.a4 b6 31.b5 a5 32.Kg3 Be5 33.Kg4 Ke6 34.Rd2 Bc3 35.Rd1 Bb4 36.d4 Kf7 37.h4 Ke6 38.Rd3 Be1 39.h5 gh5 40.Kh5 Bg3 41.Bg4 Kf7 42.Bd7 Bf4 43.Kg4 Bg5 44.Kf5 Bh4 45.d5 Bg5 46.Be6 Kf8 47.Rh3 Kg7 48.Rh5 Be3 49.Rh3 Bg5 50.Rg3 Kh6 51.Bf7 Bf4 52.Rh3 Kg7 53.Bg6 Bd2 54.Rh7 Kg8 55.Re7 (55.Re7 Bg5 56.Bh7 Kf8 57.Ke6 Bh6 58.Rf7 Ke8 59.Rc7 Kd8 60.Rc6 Bg7 61.Bf5 Bf8 62.Kf7 Bh6 63.Rc8#) 1–0. linakip – muszka59, kurnik, 2012.

6.0-0 Bf3 7.ef3 Qd7 8.d3 Nc6 9.a3 0-0-0 10.Nd2 Kb8 11.Qc1 Rhg8 12.Nb3 Nh5 13.b5 Bb2 14.Qb2 (14.bc6 Bc1 15.cd7 Bb2+=) 14...Ne5 15.f4 Ng4 16.c4 Ng7 17.a4 Nf5 18.Rfe1 e5 19.fe5 de5 20.Qc2 h5 21.Be4 Nd6 22.Bd5 h4 23.h3 Nf6 24.g4 Nd5 25.cd5 f5 26.f3 fg4 27.fg4 Rgf8 28.Rf1 Nf7 29.Nc5 Qd5 30.Ne4 Qd4 31.Kg2 Nd6 32.Nd6 Qd6 33.Qe2 Qd4 34.Rad1 g5 35.Rf8 Rf8 36.Rf1 Rd8 37.Rf5 b6 38.Re5 Qa4 39.Rg5 Qa3 40.Re5 Qd6 41.Re3 Qd5 42.Qf3 Qb5 43.Qe4 Qb2 44.Kf3?? Rf8–+ 45.Qf4 Rf4 46.Kf4 Qf6 47.Ke4 a5 48.Kd5 Kb7 49.Kc4 Qc6 50.Kb3 Qg2 51.Kc3 Ka6 52.d4 a4 53.Kc4 b5 54.Kd3 Qf1 55.Ke4 Qc4 56.g5 Qc6 57.Kf5 Qd7 58.Kf4 Qd6 59.Kg4 b4 60.Kh4 a3 61.Kh5 a2 62.g6 a1Q 63.g7 (63.g7 Qd1 64.Re2 Qe2 65.Kg5 Qe3 66.Kh5 Qh3 67.Kg5 Qdh6#; 63.Re5 Qd1 64.Kh6 Qd3 65.Re6 Qe6 66.Kg7 Qdg6 67.Kf8 Qgf6#). linakip – ostryelk, kurnik, 2011.

5.Bg2 h6

6.0-0 0-0 7.d3 Kh7 8.Nbd2 b6? (8...e5 9.c4=) 9.a3 (9.Ng5 hg5 10.Ba8 Bh3+–) 9...a5? (9...c6 10.c4+=) 10.c3?? (10.Ng5 hg5 11.Ba8 Bh3+–) 10...c5? (10...c6 11.b5=) 11.b5 Bd7 12.a4 e5? 13.e4 Ng8 14.Nc4 Be8 15.Ne3 f5 16.ef5+– gf5 17.Nd5 Bf7 18.c4 Bd5 19.cd5 f4 20.Qc2 Re8? 21.d4+– Kh8 22.dc5 bc5 23.Nh4 Qg5?? 24.Ng6+– Kh7 25.Ne5 Kh8 26.Ng6 Kh7 27.Nf4 Kh8+– 28.Ng6 Kh7 29.Nf8 Kh8 30.Ne6 Bb2 31.Qb2 (31.Qb2 Qf6 32.Qf6 Nf6 33.Nc7+–) 1–0. giorgo – szura123, kurnik, 2012.

6.0-0 Nbd7 7.c4 e5 8.d4 Qe7 9.de5 de5 10.Qb3 a5 11.b5 e4 12.Nfd2 0-0 13.Bd4 Rd8 (13...Nb6 14.Nc3=) 14.Nc3+= a4 15.Qc2 Nc5 16.e3 Bf5 17.h3 Nd3 18.g4 Be6 19.Rad1 (19.a3 Nc5+=) 19...Nb4+= 20.Qb1 c5 21.bc6 bc6 (21...Nc6 22.Bf6 Bf6 23.Nce4+=) 22.a3+/- Nd3 23.Nde4 Ne4 24.Qd3+/- Ng5 25.h4 Nh7 26.Bc6 (26.Bc6 Ra6 27.Qe4 Bd4 28.Rd4 Rd4 29.ed4 Qh4 30.Bb5+=). Atterl – amoruritme, ChessWorld.net, 2005.

4.g3 e6

5.Bg2 a6 6.0-0 0-0 7.d3 Nc6 8.Nbd2 Nb4 9.a3 Nc6 10.c4 Ne7 11.Re1 c6 12.Qc2 d5 13.c5 Qc7 14.Be5 Qd7 15.Rab1 Ng4 16.Bd6 Re8 17.h3 Nf6 18.Ne5 Qd8 19.Nb3 Nd7 20.Nd7 Bd7 21.Na5 Qa5 22.Qb3 Qb5 23.Qa2 Qa5 24.a4?? Nf5–+ 25.Bf4 e5 26.Bd2 Qc7 27.Qb3 Nd4 28.Qb7 Qb7 29.Rb7 Red8 30.Bc3 Ne6 31.Bb4 a5 32.Ba3 d4 33.Rb6 Rdc8 34.Reb1 Be8 35.Bf3 Bf8 36.Rc1 Be7 37.Bg4 Bd8 38.Rb7 Rc7 39.Rcb1 Rb7 40.Rb7 Nc7 41.Kg2 Nd5 42.Bf3 Nc3 43.Rb3 Na4 44.e3 Nc3 45.ed4 ed4 46.Bb2 Bf6 47.Bc3 dc3 48.Be4 a4 49.Ra3 c2 50.d4 c1Q 51.Bf3 Qa3 52.h4 Bd4 (52...Bd4 53.Be4 Qb2 54.Kh1 Qf2 55.Bc6 Bc6#) 0–1. linakip – marnar1960, kurnik, 2011.

5.Bg2 0-0

6.0-0 a6 7.d4 d5 8.Qd3 Bd7 9.Nc3 c6 10.a4 b6 (10...a5 11.Ba3=) 11.e4+= Ne4 12.Ne4 de4 13.Qe4 Qc7 (13...a5 14.b5+/-) 14.Ne5 Qd6 15.Bc3 Ra7 16.Qe3 Re8 17.h4 (17.a5 b5+/-) 17...f6 18.Nc4 White intends a5 18...Qc7 19.a5 b5 20.Nb6 Kh8 21.Rfe1 Qd6 22.Bf3 Kg8 23.Kg2 Kf7 24.h5 g5 (better is 24...Re7!?+/-) 25.Nd7 Rd7 26.h6! Bh6 27.Bh5 (27.Bh5 Kf8 28.Be8 Ke8 29.Qe6 Qe6 30.Re6 Kf7 31.Rae1+–) 1–0. antinephilehi (2140) – ivandesouza, gameknot.com, 2011.

6.0-0 c6 7.Qc1 d5 8.d3 Nbd7 9.Nbd2 Qc7 10.a3 a6 11.c4 dc4 12.Nc4 Nb6 13.Be5 Qd8 14.Nb6 Qb6 15.Qb2 Ne8 16.Rfc1 Be5 17.Ne5 Ng7 18.Nc4 Qd8 19.a4 Rb8 20.b5 cb5 21.ab5 Bd7 22.ba6 ba6 23.Qa3 Bb5 24.Ne5 Nf5 25.Bc6 Qd4?? 26.Qc3?? Bc6 27.Nc6= Qc3 28.Rc3 Rb6 29.Rac1 Ra8 30.g4 Nd6 31.f3 Kg7 32.Ne5 Ra7 33.Nc4 Nc4 34.dc4 Rb2 35.c5 a5 36.Kf2 a4 37.c6 Rc7 38.Rc4 a3 39.Ra4 a2 40.Ra1 Rb6 41.R4a2 Rbc6 42.Rd2 Kf6 43.Rad1 h6 44.h3 h5 45.e3 hg4 46.hg4 g5 47.Kg3 Rc2 48.e4 Rd2 49.Rd2 Rc5 50.Rd3 Ke5 51.Ra3 f5 52.ef5 ef5 53.Re3 Kf6 54.gf5 Kf5 55.Re8 Kf6 56.Rf8 Kg6 57.Rg8 Kf6 58.Rf8 Kg6 59.Kg4 Rc4 60.Kg3 Rc5 ½–½. giorgo – ayjonsa, kurnik, 2012.

6.d3 d5 7.Nbd2 b6 8.0-0 Bb7 9.Qc1 Nbd7 10.c4 dc4 11.Nc4 c5 12.b5 Qe7 13.a3 Rad8 14.a4 Nd5 15.a5 Nb4 16.Bg7 Kg7 17.Qc3 Qf6 18.Qf6 Nf6 19.a6 Ba8 20.Nfe5 Bg2 21.Kg2 Rd5 22.Nc6 Nc6 23.bc6 Rc8 24.Rfd1 Rc6 25.e4 Rd7 26.Ne5 Rcc7 27.Nd7 Rd7 28.Rac1 Rd4 29.Rc4 e5 30.f3 Nd7 31.Kf2 f5 32.Ke2 Kf6 33.h4 Nb8 34.Ra1 h6 35.Ra3 Nc6 36.Rb3?? Na5 37.Rbc3 Nc4–+ 38.dc4 fe4 39.Ke3 ef3 40.Kf3 e4 41.Ke3 Ke5 42.g4 Rd3! 43.Rd3 ed3 44.Kd3 Kf4 45.Ke2 Kg4 46.Ke3 Kh4 47.Ke4 g5 48.Kd5 g4 49.Kc6 g3 50.Kb7 g2 51.Ka7 g1Q 52.Kb6 Qd4 53.a7 Qd6 54.Kb7 Qd7 55.Kb6 Qc8 56.Kb5 Kg3 57.Kb6 h5 58.a8Q Qa8 59.Kc5 h4 (59...h4 60.Kd4 h3 61.c5 h2 62.Ke5 h1Q 63.Kf6 Qac6 64.Kg7 Qhh6 65.Kf7 Qce6#) 0–1. linakip – ira102, kurnik, 2011.

5.Bg2 d5

6.d3 0-0 7.Nbd2 b6 8.0-0 Nbd7 9.Qc1 Bb7 10.a3 c5 11.b5 h5 12.h4 Ng4 13.Bg7 Kg7 14.Qb2 Qf6 15.Qf6 Ndf6 16.a4 Rac8 17.c4 dc4 18.Nc4 Nd5 19.Nd6 Rc7 20.Nb7 Rb7 21.Nd2 Rd7 22.Nc4 Nb4 23.a5 Nc2 24.Ra2 Nd4 25.ab6 ab6 26.Nb6 Rdd8 27.Rb2 Nf6 28.Nc4 Rb8 29.b6 Nd5 30.b7 Rfe8 31.Ra1 Re7 32.Nd6 Rd7 33.Nc4 Rdb7 34.Rb7 Rb7 35.Bf1 Nb4 36.Kg2 Nbc2 37.Ra5 Rb5 38.Ra7 Nf5 39.e4 Nfd4 40.Nd6 Rb2 41.Nf7 Ne3 42.Kg1 Nf1 43.Kf1 Rb1 44.Kg2 Rd1 45.Ne5 Kg8 46.Nc4 Rd3 47.Rc7 Nb3 48.Ne5 Rc3 49.Ng6 Rc1 50.Nf4 c4 51.Ne6 c3 52.Nf4 c2 53.Ne2 Rg1 54.Ng1 (54.Ng1 c1Q 55.Rc1 Nc1 56.Nh3+–) 1–0. linakip – ira102, kurnik, 2012.

6.d3 b6 7.Nbd2 Nbd7 8.0-0 c5 9.b5 Bb7 10.a4 0-0 11.c4 dc4 12.Nc4 Nd5 13.Bg7 Kg7 14.Qc2 Nb4 15.Qc3 Qf6 16.Qf6 Nf6 17.Rfc1 a6 18.Nd6 Bf3 19.Bf3 Rad8 20.Ne4 ab5 21.ab5 Ne4 22.Be4 f5 23.Bg2 e5 24.Ra7 Rf7 25.Rf7 Kf7 26.Ra1 Re8 27.Ra7 Re7 28.Ra8 Rd7 29.Rb8 Nd5 30.Bd5 Rd5 31.Rb6 e4 32.Rc6 ed3 33.ed3 Rd3 34.Rc5 Rb3 35.Kf1 Ke6 36.Rc7 h6 37.Rb7 Kd6 38.h4 g5 39.hg5 hg5 40.Ke2 f4 41.g4 Kc5 42.Rg7 Rb5?? 43.Rg5+– Kc4 44.Rg8 Kd4 45.Rd8 Ke5 46.f3 Rb2 47.Kd3 Rb3 48.Ke2 Rb2 49.Kf1 1–0. linakip – ira102, kurnik, 2011.

5.Bg2 Qe7

6.a3 Nc6 7.0-0 b6 8.d3 Bb7 9.Nbd2 0-0-0 10.Nb3 Rhg8 11.b5 Na5 12.Na5 ba5 13.a4 Nd5 14.Bg7 Rg7 15.Qd2 h5 16.Qa5 Nb6 17.Qa7 h4 18.Nh4 Bg2 19.Ng2 f5 20.Qa6 Kb8 21.c4 f4 22.Nf4 g5 23.Ng2 g4 24.a5 Na8 25.b6 cb6 26.ab6 d6 27.Qa8# 1–0. linakip – palometa11, kurnik, 2012.

6.a3 d5 7.0-0 c5 8.c3 c4 9.Qc1 b5 10.Qc2 Nc6 11.d3 Ba6 12.dc4 bc4 (worse is 12...dc4 13.Ne5 Ne5 14.Ba8+/-) 13.Nbd2 0-0 14.Bc1 Bb5 15.Qb2 a5 16.a4 Ba6 17.b5 Rab8 18.Qa3 Qa3 19.Ba3 (19.Ra3?! Bb5 20.ab5 Rb5+=) 19...Bb5 20.Bf8 Bf8 21.ab5 Rb5 22.Rfb1 Rb1 23.Rb1 a4 24.Rb6 Na5 25.Ra6 Nb3 26.Ra4 Nd2 27.Nd2 Nd7 28.Nf3 Nc5 29.Ra8 Kg7 30.Ne5 Bd6 31.Ng4 h5 32.Ra7 hg4 33.h3 gh3 34.Bh3 Kf6 35.Kg2 Nb3 36.f3 Nd2 37.Ra2 Nb3 38.Kf2 Bc5 39.Kf1 Be3 40.Bg2 Bd2 41.Rc2 Be3 42.f4 Kf5 43.Bf3 Nd2 44.Kg2 Kf6 45.Kh3 Nf1 46.Kg4 Bf2 47.f5?? ef5 48.Kf4?? Be3# (48...Bg3#) 0–1. linakip – leslawg, kurnik, 2011.

4.g4 0-0

5.c3?? a5 6.b5 (6.g5 Nh5-/+) 6...c6 (6...Ng4 7.h3 Nf6 8.c4–+) 7.bc6 (7.g5 Nd5+=) 7...dc6 (7...Nc6!? 8.g5 Ne4 9.Qc2-/+) 8.g5-/+ Ng4 (better is 8...Ne4 9.d4 Qd5-/+) 9.h3?? (better is 9.d4 e5 10.Nbd2=) 9...Nf2! 10.Kf2 Qb6 11.e3?? (11.d4 Qb2 12.Nbd2 Qc3 13.e3–+) 11...Qb2 12.Qb3 Qa1 13.Na3 a4 14.Qc4 Qb2 15.h4 Nd7 16.h5 Qa3 17.hg6 hg6 18.Qh4 f5 19.Qh7 Kf7 20.Bc4 e6 21.Rh6 Ke8 22.Qg6 Kd8 23.Qg7 f4 24.Be6 fe3 25.de3 Rf3 26.Kf3 Qf8 27.Qf8 Nf8 28.Bc8 Kc8?? 29.Rh8+– Kd7 30.Rh4?? Ng6 31.Rd4? Ke6 32.e4 Ra5 33.c4 Rg5 34.Rd8 Ne5 35.Kf4 Rg4 36.Ke3 Nc4 37.Kd3 Nd6 38.Rh8 Rg3 39.Kd4 a3 40.Rh6 Kd7 41.e5 Nf5 42.Ke4 Nh6 43.Kf4 Rg2 44.Kf3 Ra2 45.Kf4 Ke6 46.Kg5 Ke5 47.Kh6 Rg2 (47...Rg2 48.Kh7 a2 49.Kh6 a1Q 50.Kh5 Qh1#) 0–1. NightEagle (2620) – julietkilo (1670), fics, 2001.

5.c3?? Ng4 6.h3 Nf6 7.Rg1 –+.

5.g5 Nd5 6.Bg7 Kg7=.

5.g5 Ne4 6.Bg7 Kg7 7.d4 d5 8.h4 Bg4 9.Ne5 Bh5 (9...Bf5 10.h5=+) 10.f3 (10.Bg2 Qd6 11.c3 f6=) 10...Ng3=+ 11.Rg1 Nf1 (11...Nf5 12.Bh3 Nh4 13.Qd2=) 12.Kf1 (12.Rf1 Nd7=) 12...Nd7 13.Nd3 b6 (13...Nb6 14.Nd2=+) 14.c3 Re8 (14...c6 15.Nf4=) 15.Nd2 (15.Nf4 c6=) 15...Nf8 (15...c6 16.Nf4=) 16.Kf2 (16.Nf4 Qd6 17.Nh5 gh5=) 16...Nd7 (16...a5 17.b5=+) 17.Nf1 e5 (17...c6 18.Nf4=) 18.de5+= Ne5 19.Ne5 Re5 20.Qd4 f6 21.Ng3 Kf7 (21...Qd6 22.Nh5 gh5 23.gf6 Kf8 24.Qd3+-) 22.Nh5 (22.Qd3 fg5 23.Nh5 gh4+/-) 22...gh5+= 23.f4 (23.Rae1 Qd6+=) 23...Rf5 (23...Re4!? 24.Qd2 Qd6=) 24.e3 Qe7 25.Qd3 (25.gf6 Qf6 26.Rg5 a5+/-) 25...Qe6 26.gf6 Qf6 (26...Kf6 27.Qd4 Ke7 28.Rg7 Kd6 29.c4+/-) 27.Rg3 (better 27.Rg5!? Ke6 28.Rag1+/-) 27...Qh4?? (better 27...Re8=) 28.Qf5+- (28.Qf5 Ke8 29.Rh1 Qg3 30.Kg3+-) 1-0. aleguerreiro (2155) - hyudga (2095), Rated Blitz game, lichess.org, 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.g4)

5.g5 Ne8 6.c3 d6 7.h4 e5 8.e3 b6 9.Bh3 Bb7 10.0-0 f6 11.d4 fg5 12.Ng5 Qe7 13.Nd2 ed4 14.cd4 Bf6 15.Ndf3 h6 16.Ne6 Rf7 17.h5 g5 18.Qe2?? (18.Nd2 Bd5 19.Qg4 Ng7 20.Ng7 Bg7= (worse is 20...Rg7 21.e4 Bb7 22.e5 de5 23.de5 Be5 24.Qc4 Kf8 25.Rae1 Bb2 26.Re7 Re7 27.f4+/-)) 18...Bg7?? (better is 18...Bd5 19.Nfg5 Bg5–+) 19.e4 (19.Ng7? A) worse is 19...Rf3 20.Bg2 g4 A1) 21.Bf3?? gf3 22.Qc4 d5–+ (22...Kg7?! 23.d5 Kg8 24.Qg4 Qg5 25.Qg5 hg5 26.Kh2-/+); A2) 21.Ne8 Qe8 22.Qc4 d5 23.Qc7+–; B) 19...Ng7?! 20.Nd2=; C) 19...Bf3 20.Nf5 Be2 21.Ne7 Re7–+) 19...Nd7 20.d5?? (20.Rfe1 d5=) 20...Ne5?? (better is 20...Bb2 21.Nfg5 hg5 22.Qb2 Ne5–+) 21.Ne5+/- Be5 22.Be5 de5 23.Qb2 Qd6 24.Bf5 Nf6 25.f3 Re8 26.Rad1 Bc8 27.Rd2 a6 28.Bg6 Ref8? 29.Bf7+– Rf7 30.Rc2 Nh5 31.Qc1?? Nf4 32.Rc7?? Be6–+ 33.Rf7? Ne2 34.Kg2 Nc1 35.de6 Qe6 36.Rc7 Nd3 37.Rd1 Nf4 38.Kf2 Qe8 39.Rdd7 Ne6 40.Rb7 g4! 41.Re7 Qf8 42.Re6 Qf3 43.Ke1 Qe4 44.Kf1 Qf5 45.Kg1 Qe6 46.a3 e4 47.Rc7 e3 48.Rc1 e2 49.Re1 Qe3 50.Kg2 Qf3 51.Kg1 g3 52.Rc1 Qf2 53.Kh1 Qh2 0–1. dtpwaldi – zielllek, kurnik, 2011.

5.h3 a5 6.g5 Ne4 7.Bg7 Kg7 8.d3=.

5.h3 d6 6.Bg2= e5 7.0-0 (7.Nc3 e4 8.Nd4 c5 9.bc5 dc5=) 7...Nc6 (7...Nd5 8.d4 Nb4 9.Qd2-/+) 8.b5= Ne7 9.c4 (9.d4 e4 10.Nfd2 d5=) 9...Rb8 (9...Be6 10.d3=) 10.Nc3 (10.d4 Nd7=) 10...c6 (10...Be6 11.Qa4=) 11.a4 (11.Qa4 a6=) 11...Nd7 (11...Be6 12.d3=) 12.d3 f5 13.Ng5 (13.g5!?=) 13...Nc5=+ 14.gf5 Nf5 15.Nce4 (15.Nge4 Nh4 16.Ba3 Ne4 17.Ne4 Ng2 18.Kg2 c5=+) 15...h6 (15...Nh4!?-/+) 16.Nc5= hg5 (16...Qg5 17.Ne4 Qe7 18.Qb3=) 17.Ne4 d5 18.cd5 cd5 19.Nc3 (19.Qb3 Nh4=) 19...Be6 20.Qb3 (20.e4 de4 21.de4 Nd4=) 20...Nd4 21.Qa2 e4 (21...g4 22.Bd5 Bd5 23.Nd5 Ne2 24.Kh1=) 22.Ba3 (22.de4 de4 23.Qb1 Bf5=) 22...Re8 (22...Rf7 23.Rad1=) 23.Rac1 (< 23.de4 de4 24.Qb2 Nb3-+) 23...b6 (23...Rc8 24.de4 de4 25.Qb2-+) 24.Rfd1 Nf5? (better is 24...g4!? 25.hg4 Qg5=) 25.de4+/- Nh4 26.ed5+- Bf7 27.Qc2 Ng2 28.Kg2 Rc8 29.Qd2 Re5? 30.e4+- Rc4 31.f3 g4 32.hg4 Bf6 33.Rh1 Kg7 34.Qh6 Kg8 35.Qh7 1-0. Wall,Bill - Remref, Internet, 2003.

4.h4 0-0

5.h5 b6 6.hg6 fg6 7.Qc1 Bb7 8.e3 Bf3 9.gf3 Nc6 10.a3 d6 11.Bg2 Rb8 12.Nc3 Nh5 13.Ne2 Bb2 14.Qb2 Ne5 15.Ng1 Qd7 16.f4 Ng4 17.Bd5 e6 18.Bf3 e5 19.fe5 Ne5 20.Bh5 gh5 21.Rh5 Qg7 22.Qb3 Kh8 23.0-0-0 Rf2 24.Nh3 Rg2 25.Nf4 Rg1 26.Rg1 Qg1 27.Kb2 Qg4 28.Qd5 Rf8 29.Rh1 Nf3 30.Qc6 Qf5 31.d3 Qe5 32.Qc3 Qc3 33.Kc3 Ne5 34.d4 Ng4 35.Ng6 1–0. Adamkosh (1795) – yuriy07 (1750), lichess.org, 2019.

5.h5 d5 6.hg6= hg6 (6...fg6 7.e3=) 7.e3+= c5 (7...Bf5 8.Be2+=) 8.bc5+/- Nc6 (8...Qa5 9.c4+=) 9.Be2 (9.c4+/-) 9...e5 (better 9...Qa5!?+=) 10.Ne5+- Ne5 11.Be5 Re8 12.d4 Re5 (12...Ne4 13.Bg7 Kg7 14.Bf3+-) 13.de5 Ne4 14.Qd4 Qc7 (14...Qa5 15.Nd2+-) 15.f4 (15.Qd5?! Be5 16.Qe4 Bf5+-) 15...Nc5 16.Nd2 Ne6 (16...Bf5 17.Bd3+-) 17.Qa4 (17.Qd5 Qc3 18.Kf2 Qc2+-) 17...Bd7 (17...Qc3 18.Rb1 Qe3 19.Rb3+-) 18.Qa3 (18.Qb3 Rd8+-) 18...Qc2 19.Rc1 Qf5?? (19...Qa4 20.Qa4 Ba4+-) 20.g4 Bf8 (20...Qe4 21.Ne4 de4+-) 21.Qf8!! Nf8 (21...Rf8 22.gf5 Zwischenzug; 21...Nf8 22.gf5 Zwischenzug; 21...Kf8 22.Rh8 Double attack (22.gf5 Zwischenzug)) 22.gf5 Bf5 23.Nf3 (23.Bf3 Be6+-) 23...Be4 24.Rg1 Ne6 25.Nd4 1-0. onxisback (2200) - kicmak (2250), Rated Bullet game, lichess.org, 2014.

5.h5 Nh5

6.Bg7 Ng7 7.Nc3 d5 8.e3 Bg4 9.Be2 c6 10.a3 Nd7 11.Na4 e5 12.Qc1 Ne6 13.c4 Bf3 14.Bf3 d4 15.Nc5 Nec5 16.bc5 Nc5 17.ed4 ed4 18.0-0 Nd3 19.Qc2 Ne5 20.Bd1 d3 21.Qc3 Qc7 22.Bb3 c5 23.Rae1 Rfe8 24.Re4 Re6 25.Rfe1 Rae8 26.Ba4 R8e7 27.Rh4 Nf3 28.gf3 Re1 29.Kg2 Qe5 30.Qe5 R7e5 31.Rf4 R1e2 32.Rg4 Rd2 33.f4 Ree2 34.f5 Rf2 35.Kg1 Rde2 36.fg6 hg6 37.Rg3 d2 38.Bd1 Re1 39.Kf2 Rd1 40.Ke2 Ra1 41.Kd2 Ra2 42.Kc1 Kg7 43.Kb1 Rh2 44.Re3 f5 45.Re7 Kf6 46.Rb7 Rh3 47.Ra7 Rc3 48.Kb2 Rc4 49.a4 Rb4 50.Ka3 g5 51.a5 f4 52.a6 f3 53.Ra8 Kf5 54.a7 Kg4 55.Rg8 f2 56.a8Q f1Q 57.Qg2 Qg2 58.Rf8 Qb2 0–1. Adamkosh (1740) – Rennyrein1 (1760), lichess.org, 2019.

6.Bg7 Ng7 7.d3 h5 8.Qd2 d6 9.g4 (9.Nc3!?-/+) 9...Bg4-+ 10.Nh2 (10.Bg2 Nc6-+) 10...Bf5 11.e3 (11.Bg2 Nd7-+) 11...e5 12.Be2 Qf6 (12...Nd7 13.Nf3-+) 13.Nf1 (13.Nc3 Nd7-+) 13...e4 (13...d5 14.Rg1-+) 14.d4 (14.Nc3 Nc6-+) 14...c5! 15.c3 (15.bc5 dc5 Combination; 15.dc5 Qa1 Pinning (15...Qa1 Deflection)) 15...Nc6 (15...h4 16.Qb2-+) 16.Ng3 cd4 (16...h4 17.Nf5 Nf5 18.Bg4-+) 17.ed4 (17.cd4 d5-+) 17...Ne7 18.Na3 Nd5 (18...d5!? 19.Nf5 Ngf5 20.0-0-0-+) 19.Nc2 Rfe8 20.Ne3 (20.c4 e3! 21.Ne3 Ne3 22.fe3 h4 23.Nf5 Nf5-+ (23...gf5?! 24.0-0-0=; 23...Qf5?! 24.Rh4 Qg5 25.Rg4-/+)) 20...Ne3 21.fe3 Ne6 (better 21...h4!? 22.Nf5 Nf5 23.0-0-0-+) 22.0-0-0 Ng5?? (better 22...Ng7-+) 23.Rdf1= Nf3 (better 23...h4!? 24.Nf5 gf5=) 24.Bf3+/- ef3 25.Rf3 Qe6? (better 25...Qg5 26.Nf5 gf5+/-) 26.Nf5+- gf5 27.Rh5 Kf8 (27...f4 28.Qh2 Qg6 29.Qh4+-) 28.Rhf5 Re7 (28...Ke7 29.Qh2 Rf8 30.Rf6+-) 29.Qf2 (better 29.Qh2 Rd7 30.Qh8 Ke7 31.Rf7 Qf7 32.Rf7 Kf7 33.Qa8+-) 29...Ke8 (29...Qc4 30.e4! Ke8 31.Rf6+-) 30.Qh4 (30.d5!? Qe4 31.Rf7 Rc8 32.Re7 Qe7+-) 30...Kd7 31.Rf6 (31.Kb2 Rg8 32.Qf2 Rg7+-) 31...Qe4? (better 31...Qa2 32.Qh7 Rf8+=) 32.Qe4+- Re4 33.Rf7 Re7 34.Kd2 (34.c4 Rh8+-) 34...Rae8 (34...b5 35.a3+-) 35.R7f6 (35.c4 Rh8+-) 35...Re6 (35...Rg8 36.c4+-) 36.Re6 Re6?! (36...Ke6 37.Rg3 b5 38.Rg6 Kd5 39.Rg7+-) 37.Kd3 (better 37.Rf7 Kc8+-) 37...Kc6 (37...Rg6 38.Rf7 Kc8 39.a4+-) 38.Rf4 (38.c4!? Rh6 39.Rf7 Kb6+-) 38...d5? (38...b5+-) 39.c4 (better 39.a4+-) 39...dc4+/- 40.Kc4 Kd6?? (better 40...Re3 41.Rf6 Kd7+/-) 41.e4+- Re7 (41...Ke7 42.Rh4 Rc6 43.Kd3+-) 42.e5 Ke6 (42...Kc7+-) 43.Rf6 Kd7 44.Kd5 Kc7 45.Rd6 (better 45.e6 Re8+-) 45...Rf7 46.b5 Rf5 (46...Rg7 47.a4+-) 47.a4 Rf7 (47...b6 48.Rf6 Rh5 49.Rf7 Kb8 50.Kd6+-) 48.a5 b6 (48...Kc8+-) 49.a6 Re7 50.Rc6 Kd7 51.Rd6 Kc7 52.Re6 (better 52.e6 Rh7 53.Rc6 Kd8 54.Ke5+-) 52...Rd7 53.Rd6 (better 53.Ke4 Rg7+-) 53...Rf7?? (53...Re7 54.e6 Rg7 55.Rc6 Kd8+-) 54.e6+- Kc8 (54...Rf5 55.Ke4 Rb5+-) 55.Rd7 (55.ef7 Kc7 56.Ke5 Kc8 57.f8Q Kc7 58.Qd8) 55...Re7?? (better 55...Rd7 56.ed7 Kd7+/-) 56.Kd6 (56.Re7 Kb8 57.Kc6 Kc8 58.Re8) 56...Rd7 (56...Re8 57.e7 Rh8 58.Kc6 Rh6 59.Rd6 Rh8 60.Rf6 Re8 61.Rf8 Rf8 62.ef8Q) 57.ed7 Kd8 58.Kc6 (58.Ke6 Kc7 59.Ke7 Kb8 60.d8Q) 58...Ke7 59.Kb7 Kd8 60.Ka7 Kd7 (60...Ke7 61.Kb7 Kd8 62.Kb6 Ke7 63.d5 Kf6 64.d8Q Ke5 65.Qh4 Kd5 66.a7 Ke5 67.a8Q Kd6 68.Qae4 Kd7 69.Qc6) 61.Kb6 Kd6 (61...Ke6 62.d5! Kd6 63.a7 Ke5 64.d6 Ke4 65.a8Q Kf4 66.d7 Ke3 67.d8Q Kf4 68.Qf6 Ke3 69.Qaf3 Kd2 70.Q6c3) 62.d5! Kd5 63.a7 Kd4 64.a8Q Kd3 65.Qc6 Kd2 (65...Kd4 66.Kc7 Ke5 67.b6 Kf4 68.b7 Kg4 69.Qe4 Kg5 70.b8Q Kf6 71.Qbe8 Kg5 72.Q8g6) 66.Kc7 Kd1 (66...Ke2 67.b6 Kf2 68.b7 Kg3 69.b8Q Kg4 70.Qb4 Kg5 71.Qe6 Kh5 72.Qbg4) 67.b6 Ke1 (67...Ke2 68.Qe4 Kd2 69.b7 Kd1 70.b8Q Kc1 71.Qb3 Kd2 72.Qee3) ½-½. Lance5500 (2695) - themurdercastle (2610), lichess.org, 2016.

6.Bg7 Ng7 7.e3 h5 8.Bc4 e6 9.Nc3 Qf6 10.Bb3 d5 11.0-0 Nc6 12.a3 Ne5 13.Ne5 Qe5 14.d4 Qg5 15.e4 de4 16.Ne4 Qh4 17.Re1 f5 18.Nc5 b6 19.Qf3 bc5? (better is 19...Rb8 20.Ne6 Be6 21.Be6 Ne6 22.Re6) 20.Qa8 Bd7 21.Qa7 Bc6 22.Re6 Ne6 23.Be6 Kh8 24.Qc5 Qe4 25.Qf8 1–0. Wall,Bill – Guest1324281, playchess.com, 2012.

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  • 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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